Mumbai, Apr 4 (PTI) Three Bangladeshi patients, suffering from an incurable muscular dystrophy, today underwent first stem cell therapy at a Navi Mumbai based treatment centre.

"We applied a simple therapy to the patients. We took out the stem cells from their bone marrow in the hip bone and after the required processing we injected it back into their body.

"We will wait for the results as to how they respond to such treatment. Meanwhile, physiotherapy and occupational therapy is being offered to them as well," Avantika Patil, coordinator between the patients and the treating centre told PTI.

Patil, is part of the team of NeuroGen, a brain and spine institute that keeps the track of its patients.

"We learnt about the patients through an article in an international newspaper and decided to contact them as we specialise in treating such diseases.

"I am also in contact with one Noor Khan from Bangladesh, an activist who helped the three patients to furnish documents and visa procedures," she said.

A Mumbai-based organisation specialising in such diseases, Meditourz, in collaboration with NeuroGen based in Navi Mumbai, offered to provide treatment to them.

The trio have been suffering from a rare disease Duchenne Muscular Dystrophy since their birth. This is a genetic disorder which causes progressive muscle degeneration and patients rarely live beyond 30 years of age, Patil said.

Among the three, Shorab (8 year old) is having a mild disorder and early medical intervention will definitely help in terms of less painful life. Compared to him, the disease is progressive in other two patients, she said.

Tofazzal Hossain, a fruit vendor from rural Meherpur in Bangladesh, had sought mercy killing for his sons - Abdus (24) and Rahinul (14) - and grandson Shorab from his government as he could not afford the cost of their treatment.

The Navi Mumbai based centre approached the three patients through Indian government and expressed willingness to provide treatment to the disease.

Air India also offered free round trip tickets to the six persons -- three patients and three caretakers accompanying them to Mumbai from Kolkata following an appeal from Alok Sharma, neurosurgeon at the NeuroGen.

"The three patients and the three persons accompanying them took this evenings Air India flight from Kolkata to Mumbai and will also return by an Air India flight after treatment - entirely free of any charges," Air India said in a statement. PTI ND RMT

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Three Bangladeshi patients undergo stem cell therapy in Mumbai - India Today

A new method of producing red blood cells outside the body on a large scale has been developed by researchers at the University of Bristol.

'We have demonstrated a feasible way to sustainably manufacture red cells for clinical use We've grown litres of it,' saidDr Jan Frayne, one of the authors of the research which waspublished in Nature Communications.

Previously the most effective technique involved taking stem cells from bone marrow, which makes blood cells in the body,and inducing them to do the same in lab conditions. This was of limited practical success because each stem cell will only make about 50,000 blood cells before dying by comparison, a few drops of blood can contain around one billion red cells.

Working with NHS Blood and Transplant, the Bristol team overcame this limitation by engineering the stem cells to make them 'immortal', using DNA. from the human papilloma virus (HPV) which causes cervical cancer. Red blood cells cannot continue to divide in the bloodstream, and as they mature they shed their nuclei and with it the virus DNA. Thus the adult cells that might in the future be given to patients, if the technique is applied in clinical trials, would not contain the any of the HPV genetic material.

'It's a brilliant approach, and they seemed to have solved several of the really important bottlenecks,' said Dr Robert Lanza, chief scientific officer at the Astellas Institute for Regenerative Medicine, who was not involved in the project.

The lab-grown blood is likely to be much more expensive than donated blood, but there may be a number of potential applications. Lab-grown blood could be used for patients with rare blood types for whom a match is difficult to find. It could also be useful in military or disaster situations where there is no time for blood typing people who are critically injured. Interest has also been expressed by researchers of malaria and other blood-borne diseases.

The first studies to assess the safety of manufactured blood are due to begin at the end of this year, although the first trial will not test this new type of blood cell. Even if safety is established, for the time being there is not currently enough capacity to produce it and industrialising the process could be costly.

'To make big huge vats of it would be outside of our ability in a research lab,' said Dr Frayne. 'We'd have to have company interest.'

See the article here:
Stem cells could be used to create 'endless supply of blood' - BioNews

"Dancing With the Stars" pro Maksim Chmerkovskiy has been posting pictures on social media while getting treatment for his calf injury and now he's speaking out for the first time.

In exclusive video obtained by "Good Morning America," the past Mirror Ball champ is talking via video to his "DWTS" partner Heather Morris and telling her that he does not intend to lose this season.

Chmerkovskiy sat out Monday's show and Morris was paired up with pro stand-in Alan Bersten.

"I still feel like we have a chance," he tells Morris and Bersten in the video. "You deserve it and I want to give you 150 percent effort and be physically active as I was at my best."

"I want to come back and win," he says.

Chmerkovskiy has been posting several selfies from the hospital, with one captioned, "Gettin' un-broken."

Chmerkovskiy's fiancee Peta Murgatroyd previously told "Access Hollywood" that he is getting surgery for what could be tears in his calf muscle.

"It's gonna take a couple of weeks at least to get better," she said. "He's having a surgery done," but she added that he's a fighter and will be back as soon as he can.

"GMA" anchor Lara Spencer said today that doctors made a concentrate from Chmerkovskiy's bone marrow stem cells and injected them into his calf to speed up the recovery process.

Earlier in the week, the dancer thanked his fans for all their "love and support!"

"Please rest assured that I'm taking this thing very seriously and, although I don't have a concrete return date, I'll give it my all!" he said on Wednesday.

"Dancing With the Stars" returns Monday night on ABC.

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Exclusive: 'Dancing With the Stars' pro Maksim Chmerkovskiy speaks out about injury - ABC News

An Italian neurosurgeon is saying he plans on transplanting a head onto a donor body, not in some distant future, but by the end of 2017.

When Dr. Sergio Canavero first announced his plans a couple of years ago, most people thought he was either crazy, or it was a publicity stunt. Now Canavero says he will put the head of 30-year-old Russian Valery Spiridonov on a donor body in December. Spiridonov suffers from Werdnig-Hoffman disease, which is a form of spinal muscular atrophy.

The surgeon said the procedure would take humanity closer to extending life indefinitely.

Although Canavero insists everything is ready to go, a lot of the details remain murky, and it might still be more fantasy than reality.

Dr. David Albert Jones, the director of the Oxford-based Anscombe Bioethics Centre, says the risks associated with such an attempt are not justifiable.

The center is a Catholic academic institute that studies the moral issues surrounding medicine.

The current scientific and medical consensus is that this experiment has very little chance of success, Jones told Crux, adding the most likely outcome is either death during the operation or survival in a paralyzed state for a few hours or days.

Similar experiments have been done with small animals, to little success. No animal has ever come out of the procedure without being paralyzed, and they all have died soon after.

Jones said the studies are not even advanced enough to attempt the procedure on primates such as monkeys or chimpanzees, let alone a human subject.

There is nothing to suggest that the current proposal for a head transplant is realistic, Jones said, adding even if it were, it would not put mankind on a path to immortality.

People who have received donor organs live longer than they would have done, but they do not live longer, on average, than the average life expectancy of the general population, Jones said.

We will all die.

Jones did warn that if immortality became the goal of a society, this could be a real concern because the quest for unachievable goals can detract from the achievable goals of society, the realistic goals of healthcare, education and social solidarity.

Jones responded to some questions from Crux by email, and told us the scientific and ethical concerns about the proposed procedure.

Crux: Is this even possible with todays technology?

Jones: The idea of a head transplant (or a neck down body-transplant) has been attempted in animals but most animals have either died or have been completely paralyzed and none have lived more than a few days. Given the very poor outcome with mice at the present time it is very difficult to justify attempting this with primates, let alone with humans.

A key challenge is reconnecting the spinal cord. Only if we could finally overcome this problem in patients suffering from spinal cord injury (for example, by the use of gene therapy, stem cells and/or growth factors) would it be realistic to deliberately severe the spinal cord and reconnect the head to a different body.

Thought must also be given to the consequences if the body were to reject the new head. Could the head be kept alive apart from the body, and what kind of existence would this be?

Is such a transplant ethically permitted?

The current scientific and medical consensus is that this experiment has very little chance of success. The most likely outcome is either death during the operation or survival in a paralyzed state for a few hours or days.

The risks are such that it is not justifiable even with consent, but there is an added concern in that it seems likely that the patient has been given misinformation about the realistic prospects for success, and in these circumstances it seems doubtful that consent is properly informed.

It should also be noticed that the operation would not only take great financial and human resources but would also require a donor whose heart, lungs, liver, and/or kidneys could have given real benefits to several patients on the organ transplant waiting list. The opportunity costs would, at the very least, involve extending the suffering of these patients and could involve the death of a patient who might otherwise have been saved.

Many are saying that if such a surgery is successful, it puts humanity on the path to immortality. Should such a goal concern us?

There is nothing to suggest that the current proposal for a head transplant is realistic. If some time in the future the technical problems were overcome, it would not be the path to immortality any more than current, very successful, transplant medicine puts people on a path to immortality. People who have received donor organs live longer than they would have done, but they do not live longer, on average, than the average life expectancy of the general population. We will all die.

How can the Church do more to help people assess the morality of new biotechnologies and medical (or pseudo-medical) procedures?

The goal of immortality is unachievable. There is no need to be concerned therefore about the achievement of this goal. On the other hand if (virtual) immortality became the goal of a society, this could be a real concern because the quest for unachievable goals can detract from the achievable goals of society, the realistic goals of healthcare, education and social solidarity.

The virtue of temperateness is needed if society is to avoid such vain and destructive desires. The Church could do more to promote the virtues of temperateness and humility, which are necessary not only in relation to this issue but in the wider context of the care of creation.

How should the governments involved handle such things, both on a national and international level? I mean, it seems odd that this doctor is even being allowed to attempt this procedure, given the objections from many that the technology has not even been tested properly.

Governments should ensure that experimental surgery is subject to the same level of ethical scrutiny as the clinical trials of drugs or of medical devices. Unfortunately surgery is sometimes given a degree of latitude that leaves patients vulnerable to exploitation. Experimental procedures should not be permitted by a hospital unless and until it has been subject to scientific peer review and has satisfied a clinical ethics committee. It is difficult to see how the current proposal could fulfill such criteria.

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Should a head transplant be allowed to happen? - Crux: Covering all things Catholic

March 29, 2017 (A) Bio-imaging analysis to evaluate the therapeutic effect of iPS-ML producing IFN- on metastatic liver cancer. (B) Quantification of the image data shown in A. (C) Histological data indicating migration of iPS-ML (PKH26, red) into intrahepatic tumor tissues (GFP, green). Adapted from M. Sakisaka, M. Haruta, Y. Komohara, S. Umemoto, K. Matsumura, T. Ikeda, M. Takeya, Y. Inomata, Y. Nishimura, and S. Senju, "Therapy of primary and metastatic liver cancer by human iPS cell-derived myeloid cells producing interferon-," Journal of Hepato-Biliary-Pancreatic Sciences, vol. 24, pp. 109-119, Feb. 2017. DOI: 10.1002/jhbp.422

Causes of the most common form of liver cancer, hepatocellular carcinoma (HCC), include hepatitis B or C, cirrhosis, obesity, diabetes, a buildup of iron in the liver, or a family of toxins called aflatoxins produced by fungi on some types of food. Typical treatments for HCC include radiation, chemotherapy, cryo- or radiofrequency ablation, resection, and liver transplant. Unfortunately, the mortality rate is still quite high; the American Cancer Society estimates the five-year survival rate for localized liver cancer is 31 percent.

Hoping to improve primary liver cancer outcomes, including HCC and metastatic liver cancer, researchers from Japan began studying induced pluripotent stem (iPS) cell-derived immune cells that produce the protein interferon- (IFN-). IFN- has antiviral effects related to immune response, and exhibits two antitumor activities, the JAK-STAT signaling pathway and p53 protein expression. IFN- has been used for some forms of cancer, but problems like rapid inactivation, poor tissue penetration, and toxicity prevent widespread use. To overcome that hurdle, Kumamoto University researchers used iPS cell-derived proliferating myelomonocytic (iPS-ML) cells, which they developed in a previous research project. These cells were found to mimic the behavior of tumor-associated macrophages (TAMS), which inspired the researchers to develop them as a drug delivery system for IFN- and evaluate the therapeutic effect on liver cancer in a murine model in vivo.

The researchers selected two cancer cell lines that were sensitive to IFN- treatmentone that easily metastasized to the liver after injection into the spleen, and another that produced a viable model after being directly injected into the liver. After injection, mice that tested positive for cancer (~80 percent) were separated into test and control groups. iPS-ML/IFN- cells were injected two to three times a week for three weeks into the abdomens of the test group subjects.

Livers with tumors were found to have higher levels of IFN- than those without. This was likely due to iPS-ML/IFN- cells penetrating the fibrous connective tissue capsule surrounding the liver and migrating toward intrahepatic cancer sites. The iPS-ML/IFN- cells did not penetrate non-tumorous livers, but rather stayed on the surface of the organ. Furthermore, concentrations of IFN- from 24 to 72 hours after iPS-ML/IFN- injections were found to be high enough to inhibit proliferation or even cause the death of the tumor cells.

Due to differences between species, mouse cells are not adversely affected by human IFN-, meaning that side effects of this treatment are not visible in this model. Thus, the researchers are working on a new model with the mouse equivalent of human iPS-ML/IFN, and testing its therapeutic abilities.

"Our recent research into iPS-cell derived, IFN- expressing myeloid cells should be beneficial for many cancer patients," says research leader Dr. Satoru Senju. "If it is determined to be safe for human use, this technology has the potential to slow cancer progression and increase survival rates. At this point, however, we still have much work ahead."

This research may be found in the Journal of Hepato-Biliary-Pancreatic Sciences.

Explore further: Scientists stimulate immune system, stop cancer growth

More information: Masataka Sakisaka et al, Therapy of primary and metastatic liver cancer by human iPS cell-derived myeloid cells producing interferon-, Journal of Hepato-Biliary-Pancreatic Sciences (2017). DOI: 10.1002/jhbp.422

A chemical found in tumors may help stop tumor growth, according to a new study.

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OSAKA -- Researchers transplanted induced pluripotent stem cells derived from donors into a patient in Kobe Tuesday, in the first such trial using cells not from the patient -- an advance with hopeful implications for Japanese regenerative medicine.

Research institute Riken worked with the Kobe City Medical Center General Hospital, as well as Kyoto University and other partners, to make the procedure a reality.

The patient, a Hyogo Prefecture man in his 60s, suffered from age-related macular degeneration, an intractable eye disease that can cause blindness. He received in his right eye an injection of a solution containing 250,000 retinal cells grown from iPS cells. The procedure began before 2 p.m. at the Kobe hospital and lasted about an hour.

The operation went smoothly, Yasuo Kurimoto, director of ophthalmology at the hospital, told reporters. Masayo Takahashi, head of the project at Riken, said the researchers had reached about the halfway point in their pursuit of the practical adoption of iPS cells.

The institutions hope to perform the transplants for five patients in all to determine the safety of the process. The transplants are not expected to improve their eyesight much, but should eliminate the need to take medicine regularly and keep vision from deteriorating further.

Riken performed the world's first such procedure in 2014, but used iPS cells derived from the patient. The process drew notice for its cost and lengthiness, taking roughly 100 million yen ($905,600 at current rates) including inspections to make sure the cells would not become cancerous, and around 10 months.

The patient appeared to be doing well two years later, and none of the injected cells appeared to have turned cancerous or otherwise behaved abnormally. Her disease appeared to have halted, with no noteworthy side effects.

In Tuesday's procedure, using stock iPS cells carefully tested for safety, Riken and its partners expect costs of just several million yen -- less than a tenth those of the first trial. The patient also reportedly waited just about six weeks for the procedure after agreeing to it.

Researchers seek to use iPS cells to treat conditions including spinal cord injuries as well. Donor iPS cells may make this possible for such injuries and other urgent operations for which gathering cells from patients would take too long.

Riken and the other institutions intend to carefully observe the new patient to ensure the procedure's long-term safety. It is possible the patient's body could reject the transplanted cells. The results should be announced two or three years down the road, as it will take time to see the case through fully, said Takahashi.

Using donor cells requires thorough oversight. Kyoto University stopped supplying iPS cells grown from umbilical cord blood to outside institutions in January due to the possibility that an incorrect reagent was used in the cells' creation. The university then announced a research partnership with the biomedical company Takara Bio dedicated to ensuring the quality of iPS cells.

(Nikkei)

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Japan performs first transplant of donor iPS cells - Nikkei Asian Review

Id like to believe that our lives have meaning, that the day-to-day decisions we make steer our steps down a variety of roads in life. As in the poem by Robert Frost, moving in one direction can leave us wondering about what would have happened had we taken the other road.

I dont believe Frost meant that we regret our choices, simply that new realities unfold as we move forward, and they are different than if we had moved left or right instead. Our decisions affect others as well, unfolding and connecting in ways we can only accept and not really understand.

One of my favorite thoughts is that from each difficulty we encounter, no matter how painful, some good will come of it; our tempering or pruning, if you will. It is our place to trust.

This I know. Eleven years ago, Heidi, the daughter of my dear friend Sue Sands, was diagnosed with Leukemia. Her family held a sign-up for Be The Match, the National Bone Marrow Donor Registry, in hopes of finding a stem cell donor to cure her.

I couldnt attend that evening, but shortly after I had a vivid dream in which I was a bone marrow match for Heidi. I knew I had to get tested, so I found another sign-up, did a cheek swab and entered the registry. I wasnt called to be a match for Heidi. In fact, she underwent treatment and was able to recover without a bone marrow transplant.

There was more to come. In 2009 I turned out to be a perfect match for a little girl who happened to be the same age as my daughter. Its more than just matching a blood type; a person must closely match on human leukocyte antigen. I agreed to donate bone marrow and it was a completely anonymous donation.

Let me give you the simplified version of donating bone marrow and stem cells. There are two ways; blood stem cells and bone marrow. In the former, the donor is given a medicine to boost stem cell formation and then the cells are drawn from their blood. In the latter, the donor undergoes surgery where the stem cells are harvested from the back of their hip bones. The stem cells are given to the recipient in about 48 hours, and if all goes well, they are completely cured of their disease.

People tell me they are amazed I would do this for someone I dont know. How could I not? When I was about 23, my mother died of multiple myeloma bone cancer. A little over a year ago, my stepmother succumbed to pancreatic cancer. I know intimately what it is like to feel helpless when a loved one is sick. I know the sense of loss that remains.

I recovered from the bone marrow donation. Yes I was sore for several weeks, and tired, but it felt good to have done something. Yet, there was more to the story. Mayo Clinic doctors had discovered in my pre-donation blood work that I had elevated calcium levels. It was due to a parathyroid tumor, and it was taking calcium from my bones. It didnt affect my ability to donate, but they advised removal of the tumor soon after.

Had I not been a donor, I might never have known about the parathyroid issue until it had severely affected my health. It still gives me shivers to think about it.

Fast forward to this past December. I was working on page layout one afternoon when I received a call from Be the Match. I was a potential match for another patient, this time an adult woman with Leukemia. I am at the top of the preferred age group, but I was the perfect match to potentially save this persons life.

Now, back to the idea of paths intermingling. My friends daughter Heidi, who had beat her leukemia, was dealt a tough blow. A few weeks ago she was diagnosed once again with leukemia, not the same type, but different. It was like lightning striking twice.

My mind instantly went back to my initial dream. What can this mean, that I am called to donate twice, defying so many odds, at the same time she is diagnosed again, against so many odds?

Last week I completed the second bone marrow donation for an unknown recipient. The doctors and nurses on the ninth floor of the Charleton Building at Mayo Clinic were amazing. They took such good care of me and thanked me repeatedly. The procedure went well and my APG employers have been gracious to give me time off for the whole thing.

I am oh so very tired, but the soreness in my hips is better each day. The need to build up the hemoglobin in my blood has made me extra conscientious of my diet. I am thankful for my good health and also for the friends, who brought food, checked in on me and have provided support through this donation process.

What does it all mean? We need each other. What we can do for another person in desperate need, we should do.

I hope and pray for a full recovery for Heidi. They will look for a bone marrow match for her this time around. Maybe I am a match for her after all? The doctor last week said that I could theoretically donate again once I was 100 percent recovered and if my hemoglobin levels were perfect.

Maybe I am not a match, but through my story, others will join the registry and Heidis match will be found. I guess its OK to not know what it all means. Knowing that something good will come is enough.

Reach Publisher and Editor Terri Lenz at 333-3148, or follow her on Twitter.com @KenyonLeader

Reach Publisher and Editor Terri Lenz at 333-3148, or follow her on Twitter.com @KenyonLeader

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Not knowing what it means is OK, follow your path - Southernminn.com

Thomas Deerinck, NCMIR/SPL

In a medical first, a donor's iPS cells were transformed into retinal cells and transplanted into a patient.

On 28 March, a Japanese man in his 60s became the first person to receive cells derived from induced pluripotent stem (iPS) cells that had been donated by another person.

The surgery is expected to set the path for more applications of iPS cell technology, which offers the versatility of embryonic stem cells without the latters ethical taint. Banks of iPS cells from diverse donors could make stem cell transplants more convenient to perform, while slashing costs.

iPS cells are created by removing mature cells from an individual (from their skin, for example), reprogramming these cells backto an embryonic state, and then coaxing them to become a cell type useful for treating a disease.

In the recent procedure, performed on a man from Hyogo prefecture, skin cells from an anonymous donor were reprogrammed and then turned into a type of retinal cell that was transplanted onto the retina of thepatient who suffers from age-related macular degeneration. Doctors hope the cells will stop progression of the disease, which can lead to blindness.

In a procedure performed in September 2014at the Kobe City Medical Center General Hospital, a Japanese woman received retinal cells derived from iPS cells. They were taken from her own skin, though, and then reprogrammed. Such cells prepared for a second patient were found to contain genetic abnormalities and never implanted.

The team decided to redesign the study based on new regulations, and no other participants were recruited to the clinical study. In February 2017, the team reported that the one patient had fared well. The introduced cells remained intactand vision had not declined as would usually be expected with macular degeneration.

In todays procedure performed at the same hospital and by the same surgeon Yasuo Kurimoto doctors used iPS cells that had been taken from a donors skin cells, reprogrammed and banked. Japans health ministry approved the study, which plansto enroll 5 patients, on 1 February.

Using a donor's iPS cells does not offer an exact genetic match, raising the prospect of immune rejection. But Shinya Yamanaka, the Nobel Prize-winning stem-cell scientist who pioneered iPS cells, has contended that banked cells should be a close enough match for most applications.

Yamanaka is establishing an iPS cell bank, which depends on matching donors to recipients via three genes that code for human leukocyte antigens (HLAs) proteins on the cell surface that are involved in triggering immune reactions. HisiPS Cell Stock for Regenerative Medicine currently has cell lines from just one donor. But by March 2018, they hope to create 5-10 HLA-characterized iPS cell lines, which should match 30%-50% of Japans population.

Use of these ready-made cells has advantages for offering stem cell transplants across an entire population, says Masayo Takahashi, an ophthalmologist at the RIKEN Center for Developmental Biology who devised the iPS cell protocol deployed in todays transplant. The cells are available immediately versus several months wait for a patients own cells and are much cheaper. Cells from patients, who tend to be elderly, might have also accumulated genetic defects that could increase the risk of the procedure.

At a press conference after the procedure, Takahashi said the surgery had gone well but that success could not be declaredwithout monitoring the fate of the introduced cells. She plans to make no further announcements about patient progress until all five procedures are finished. We are at the beginning, she says.

Read more from the original source:
Japanese man is first to receive 'reprogrammed' stem cells from ... - Nature.com

As people age, so does their blood. The question is: what exactly is in the blood of older people that makes it age? And in the same light, what is in the blood of younger people that can help rejuvenate old blood?

The idea of using young blood to rejuvenate old blood was not an automatic conclusion, of course. While it does seem logical, it remained a theory until tests that involved conjoining (i.e. stitching together) of old and young mice for the purpose of swapping blood revealed that the concept did have merit. With shared blood, the health of younger mice deteriorated while the health of older mice improved.

Another kind of experiment done was non-invasive blood swapping using tubes. The results were similar, though different explanations emerged for the change in health conditions of both old and young mice. When conjoined, the mice shared more than just blood; their organs got affected too. In non-invasive blood swapping, the old blood got diluted.

While these experiments were done on mice, theres a chance they might work in people as well. However, this involves blood donation from young people, which might mean the supply will be limited when it comes to fulfill demand.

As an alternative, a research team at Germanys University of Ulm led by Hartmut Geiger turned to stem cells, specifically, what are being referred to as mother stem cells those stem cells in the bone marrow that produce red and white blood cells, and whose number become fewer and fewer as a person ages. With fewer of these cell-generating cells, older people become more susceptible to conditions like anemia and heart disease. They become less capable of fighting infection as well.

By examining mice bone marrow, Geigers team discovered that older mice have considerably lower levels of a protein known as osteopontin. To check the effect of this protein on blood stem cells, they injected stem cells into mice that had low levels of osteopontin. What happened was, the cells aged much quicker.

However, when they mixed older stem cells with osteopontin and a protein that activates osteopontin, the old stem cells started producing white blood cells as if they were young stem cells. This suggests that osteopontin might indeed have a hand in rejuvenating old stem cells and making them behave as if they were young again.

While majority of blood rejuvenation efforts focus on the liquid part of blood (or plasma), Geiger believes blood cells might also play a vital role since cells can move better in the bodys tissues.

Following the initial results of their experiments, the team is now working on developing a drug that contains osteopontin and its corresponding protein activator. The hope is that this drug can promote youthful behavior in blood stem cells and boost the number of mother stem cells. Ultimately, this can help in the treatment of age-related blood disorders, and possibly boost the immune system of the elderly too so they dont get sick as easily.

Details of the study have been reported in The EMBO Journal.

Read more:
Protein Found in Young Blood Could Be The Key To Fight Aging - Wall Street Pit

Stem cells are the foundation of all our body cells before they differentiate to become specialised cells that grow into our tissues and organs, such as kidney cells, muscle cells, nerve cells, and so on.

They commonly come from two sources: The embryo (embryonic stem cells formed in early development after the human egg is fertilised by a sperm); and adult tissue (adult stem cells, such as those existing in bone marrow to later differentiate to form red blood cells, white blood cells and other components of the blood).

The use of human embryonic stems cells for treatment or research is often frowned upon by some people, as they regard the human embryo as a person that should not be discarded after such endeavours. Consequently, much scientific work has recently been focused on the use of adult stem cells.

THE USE OF STEM CELLS

Stem cells may be beneficial in treating diseases that are amenable to cell replacement. However, this is still a young science, and belief that a particular treatment helps two or three people does not convince the scientific community or the whole society that the treatment will work for everyone so afflicted.

Scientific proof comes from conducting clinical trials, the international gold standard often involving hundreds of people so afflicted and comparing them with an equivalent number of people not afflicted to determine whether a treatment really works for those who receive it.

Whilst many stem cell research projects are currently being conducted in various centres around the world to determine whether they produce benefits, and what may be the possible risks involved, there are also medical clinics that are using stem cells not in a registered research project, but rather in the actual treatment of affected people.

TREATMENT CAN CAUSE HARM

A recent report in the highly respected New England Journal of Medicine informed that three elderly women in Florida had been blinded by an unproven treatment.

They had signed up for a purported clinical trial in 2015 for which they had to pay US$5,000 each. Before surgery, the vision in their eyes varied from 20/30 to 20/200, but within one week after surgery, they experienced a variety of complications, including vision loss, detached retinas and bleeding into their eyes, resulting in total blindness.

The authors of the article from the Standard University School of Medicine sought to make patients, doctors and the various regulatory agencies aware of the risks of such a minimally regulated, patient-funded research. It stated that some clinics appeal to patients that are desperate for care and who hope that stem cells will be their answer, but as in the case of these women, some of these current enterprises are very dangerous.

At this particular clinic, fat cells were taken from the patients abdomens and processed to obtain stem cells which were then injected into their eyes. The patients reported that the entire process took less than one hour. The patients had both eyes treated at once, even though most doctors would opt for a conservative approach to observe how the first eye responds.

THE NEED FOR THE REGULATION OF RESEARCH

The article stated that while there is a lot of well-founded evidence for the positive potential of stem cell treatment for many human diseases, such treatments should be conducted in a well-designed clinical trial based on pre-clinical research.

The treatment done for the women lacked nearly all the components of a properly designed clinical trial, including a hypothesis based on laboratory experiments, the involvement of a control group of people and a treatment group, the safe collection of data, the masking of clinical and patient groups, and plans for follow-up.

Clinics offering stem cell treatments exist in Jamaica, The Bahamas and Cuba. However, while both The Bahamas and Cuba have developed regulations that stipulate in law the conditions to be met for stem cell treatments and research within their jurisdictions, Jamaica has developed no such regulation.

THE MEDICAL ACT DOES NOT PROVIDE PROTECTION

The Medical Act of Jamaica was passed in 1976, but does not mention or provide any guidance or protection regarding research with human participants.

Its focus was to: Register medical practitioners; appoint examiners to conduct exams for people applying for registration, and ensure the maintenance of proper professional conduct by practitioners.An amendment in 2004 added the requirement of continuing medical education for practitioners.

Guyana and St Lucia are the only countries in the Caribbean that have joined the progressive countries who all have legislation governing research with human participants within their borders. Regulations should stipulate the requisite conditions, including that treatment and research be monitored by an appropriate ethics committee to meet all international standards.

Without this, vulnerable people seeking health benefits will unknowingly continue to subject themselves to risks of harm without the protection that proper regulations can provide.

Derrick Aarons MD, PhD is a consultant bioethicist/family physician, a specialist in ethical issues in medicine, the life sciences and research, and is the Ethicist at the Caribbean Public Health Agency (CARPHA). (The views expressed here are not written on behalf of CARPHA)

Continued here:
Stem cell treatments can go wrong - Jamaica Observer

The suggestion that young blood may be the key toreversingsome of the negative aspects of aging sounds like the setup to a horror movie. In reality, however, itrefers to some groundbreaking work being carried out byscientists at the University of Ulm in Germany.

Theyve been examining the ways that old blood can be made young again, and they hypothesize that it might help fight some of the effects of aging.To achieve this, theyve discovereda protein capable of boosting blood stem cells, which prompts them to act like the stem cells of younger people.

More: Scientists may have discovered how to reverse the natural aging process

Older stem cells have several disadvantages, Dr. Hartmut Geiger, co-author of a paper describing the work, told Digital Trends. Theyresult in fewer red blood cells, and fewer of an important immune cell that fights infection. They also tend to produce more leukemia, which is a cancer of the blood. All of this is linked, at least in part, to the aging of stem cells. If you have younger stem cells, we think that we can reverse some of these effects.

Older stem cells tend to possess these negative characteristics thanks to the declining number of so-called mother stem cells in our bone marrow as we age. This decline triggers the effects Geiger describes.

In trials with mice, Geiger and his team discovered that older mice have lower levels of a protein called osteopontin. They decided to testthe effect of this protein on blood stem cells.

We took the stem cells from aged mice, incubated them with the osteopontin protein, and then gave them back, he continued.These blood stem cells, which had come from older animals, were found to have a lot of the features of stem cells coming from much younger animals in terms of function.

Its still early days for the research, but the suggestion that osteopontin could make stem cells behave in a more youthful way is certainly promising. The team is now developing a drug made up of osteopontin and a protein for activating it.

Hopefully human trials can follow in the not-too-distant future while were still around to benefit from them.

Link:
Young blood: Scientists say this protein could be key to reversing aging process - Yahoo News

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Why it matters to you

Nobody likes getting older. Reversing some of the bad aspects of the process helps us all age gracefully.

The suggestion that young blood may be the key toreversingsome of the negative aspects of aging sounds like the setup to a horror movie. In reality, however, itrefers to some groundbreaking work being carried out byscientists at the University of Ulm in Germany.

Theyve been examining the ways that old blood can be made young again, and they hypothesize that it might help fight some of the effects of aging.To achieve this, theyve discovereda protein capable of boosting blood stem cells, which prompts them to act like the stem cells of younger people.

More: Scientists may have discovered how to reverse the natural aging process

Older stem cells have several disadvantages, Dr. Hartmut Geiger, co-author of a paper describing the work, told Digital Trends. Theyresult in fewer red blood cells, and fewer of an important immune cell that fights infection. They also tend to produce more leukemia, which is a cancer of the blood. All of this is linked, at least in part, to the aging of stem cells. If you have younger stem cells, we think that we can reverse some of these effects.

Older stem cells tend to possess these negative characteristics thanks to the declining number of so-called mother stem cells in our bone marrow as we age. This decline triggers the effects Geiger describes.

In trials with mice, Geiger and his team discovered that older mice have lower levels of a protein called osteopontin. They decided to testthe effect of this protein on blood stem cells.

We took the stem cells from aged mice, incubated them with the osteopontin protein, and then gave them back, he continued.These blood stem cells, which had come from older animals, were found to have a lot of the features of stem cells coming from much younger animals in terms of function.

Its still early days for the research, but the suggestion that osteopontin could make stem cells behave in a more youthful way is certainly promising. The team is now developing a drug made up of osteopontin and a protein for activating it.

Hopefully human trials can follow in the not-too-distant future while were still around to benefit from them.

Follow this link:
Scientists May Have Found A Way To Make Old Stem Cells Act ... - Digital Trends

Selfless Ray Noble may never meet the stranger whose life he saved.

The 29-year-old registered as a stem cell and bone marrow donor four years ago after a young girl his wife knew was diagnosed with cancer.

If that was my little girl Id want someone to be there for her, he said.

Ive been a blood donor for a while, so I thought why not sign up to the stem cell register as well.

And last year dad-of-one Ray, from Wallsend, made a life-saving donation after being told he was a match for an unknown patient in urgent need of a transplant.

Now blood cancer charity Anthony Nolan have urged more people to follow Rays example after a survey revealed that 50% of young men from the North East could not be encouraged to sign up to a blood stem cell or bone marrow register for any reason.

Every year there are 2,000 people in the UK in need of a bone marrow or stem cell transplant. This is usually their last chance of survival.

For Ray, the path to becoming a blood cancer patients last hope started when a relative of his wifes friend was diagnosed with the disease.

The process was pretty simple, he said.

I followed the instructions on the Anthony Nolan website about how to sign up.

Within a week or two they sent me a spit test, where I basically had to spit into a tube and send it off so it could be analysed.

I then got a card a few weeks later saying I was on the register.

Since signing up, Ray has been identified as a potential match for two patients.

About two years ago Anthony Nolan got in touch to say that I was a potential match for someone and I had to go and give some samples.

On that one they managed to find a closer match - I was eight out of 10 and they found a 10 out of 10, which was obviously better for the patient.

Then around Christmas last year they confirmed that I was a match for someone.

After undergoing several health checks and injections to stimulate the stem cells in his blood, Ray travelled down to Sheffield in April last year to make the donation.

All in all it took about four or five hours, he said. Id been aching a bit before the procedure because of the injections but afterwards I felt totally fine.

Ray, who is dad to two-year-old Ariana, has since convinced several friends and relatives to sign up.

For me its a question of, why not?, he said.

Its not that likely that youre ever going to be asked to donate - its just a case of being on there for someone if they need it.

I always ask people: How would you feel if it was your child or parent or cousin, if they needed a donor and you werent a match - would you want someone to step up and help them?

Every 20 minutes someone in the UK finds out they have a blood cancer.

Around 2,000 people in the UK in need of a bone marrow or stem cell transplant every year. This is usually their last chance of survival.

75% of UK patients wont find a matching donor in their families. So they turn to Anthony Nolan to find them an unrelated donor.

Healthy adults aged between 16 and 30 can sign up for a simple, pain-free test through the Anthony Nolan Trust.

The charity particularly need more young men to sign up. They produce more stem cells than women and are six times more likely to donate, but make up just 15% of the register. They also need more donors from black and minority ethnic backgrounds as they often struggle to find matches for people in these groups.

Check the list of criteria to make sure youre eligible to join and fill in an application form, either online or at an Anthony Nolan recruitment event.

If you come to a recruitment event and your application is OK, you can give your saliva sample there. If you apply online, youll be sent spit kit in the post. All you need to do is spit into a small tube and post it back.

The sample will be tested and the results put in the charitys database. Every time someone needs a transplant, theyll automatically compare their tissue to yours and the 620,000 other individuals on the register.

You can donate your stem cells in two ways.

Nearly 90% of people donate their stem cells quickly and easily in a process similar to giving blood, called peripheral blood stem cell collection.

The other 10% donate through bone marrow, where they give cells from the bone marrow in their pelvis.

If youre on the register, you must be happy to donate stem cells in either way.

Link:
'If that was my little girl I'd want someone to step up': Stem cell donor on lifesaving transplant - ChronicleLive

Jonathan Pitre readies for his second stem cell transplant, which will take place April 13th at the University of Minnesota Masonic Children's Hospital. Tina Boileau / -

Fully recovered from a series of infections, Jonathan Pitre has received medical clearance to undergo a second stem cell transplant.

Pitre, 16, will check into hospital on the last day of March to begin eight days of high-dose chemotherapy and one day of radiation. His stem cell transplant what doctors call Day Zero is scheduled forApril 13 at the University of Minnesota Masonic Childrens Hospital.

The night before he goes into hospital, Pitre will attend the Ottawa Senators game against the Minnesota Wild at the Xcel Energy Centre in Saint Paul. It will be a good night of fun before it all starts again, said Pitres mother, Tina Boileau.

She shared the latest news on her Facebook page on Wednesday.

After many weeks of tests, procedures and appointments at the hospital, Jonathan got the green light to proceed with the second transplant, she said. He has completely recovered from his infections and his body is as strong as can be This time it will work!

Last September, Pitre suffered nausea, hair loss, fevers and exhaustion in the aftermath of his first transplant, which ultimately failed when his own stem cells recolonized his bone marrow.His second transplant has been delayed because of lung and blood infections.

In an interview earlier this month, Pitre told the Citizen hes staying positive even though he understands the physical test that he faces in hospital.

Its mostly thinking about sticking together with the people you care about, your family, he said . You have to stick to them very, very tightly and tell each other that, Its going to be OK, and that Were stronger than this. Were going through this together, not just alone.

Pitre suffers from a rare, painful and deadly form of epidermolysis bullosa (EB), a blistering skin disease.

Hes the first Canadian to take part in a clinical trial operated by the University of Minnesotas Dr. Jakub Tolar, a pediatric transplant specialist who has adapted stem-cell therapy as a treatment for the most severe forms of EB.Although the procedure comes with the potential for life-threatening complications, it has produced dramatic improvements in two-thirds of those EB patients who have survived the transplant: tougher skin, reduced blistering and better wound healing.

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'Butterfly boy' Jonathan Pitre cleared for second stem cell transplant - Ottawa Citizen

Plasma and stem cells: The future of regenerative medicine

Blood platelet injections and stem cell treatments may sound like the future, but physicians at the Andrews Institute are already practicing these forms of regenerative medicine.

Weight lifting mixed with normal wear and tear left Howie Webber in constant pain.

"I probably felt it about four months ago," said Howie. "I did some stretching, thinking I could make it go away, but it just continued to get worse."

That's when Howie went to the doctor and found out he had two options: surgery or regenerative medicine; he picked the latter.

"I just added up the amount of time I'd be out of work and the cost of surgery, plus the copay and this whole thing just seemed like it would be a little faster and a little easier, and it ended up being just that," said Howie.

Physicians at the Andrew's Institute currently offer two different types of regenerative medicine, platelet rich plasma, or PRP and bone marrow aspirate concentrate, or BMAC.

With PRP, physicians take the patient's blood, separate the platelets and inject those platelets back into the patient at the site of injury. The idea is that platelets carry growth factors and molecules to stimulate the healing process.

BMAC utilizes platelets too, but also the patient's bone marrow harvested from the pelvis.

Both regenerative medicine methods have benefits, perhaps the biggest according to Dr. Brett Kindle, is avoiding invasive surgeries.

"If we need surgery, we need surgery, and that's what it is, but if we can avoid it, that often times is very beneficial from a financial standpoint, missing less work, etc.," said Dr. Kindle. "Also from a quality of life, to be able to get back to doing activities in a more timely manner."

The main difference between the two is price and neither are covered by insurance. BMAC costs upwards of $3,000, while PRP costs anywhere from $600 to $800. Howie opted for PRP.

"It hurt for about three days, then within a week I was pain free," said Howie. "Maybe a little discomfort that you would expect, but it wasn't near as bad as it was before."

Howie's issue was with his hamstrings, but Dr. Kindle said both PRP and BMAC can be used to treat a variety of aches and pains.

"Anything in the limbs," said Dr. Kindle. "Shoulders, elbows, hands, wrists, hips, knees, foot, ankle, all of those areas."

Recovery for both PRP and BMAC procedures is typically one to two weeks. Full effects of the injections don't usually kick in until six to eight weeks later. For more information about regenerative medicine or to schedule a consultation with an Andrews Institute physician, call (850) 916-8700.

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Plasma and stem cells: The future of regenerative medicine - WEAR

Spinal Cord Injury Treatment Status and Improvements after Treatment

Till the end of 2014, our department has treated 3166 patients with sequela of spinal cord injury, including 1452 patients with cervical cord injury, 1193 patients with thoracic cord injury (do not include T12-L1), 216 patients with both cervical cord and thoracic cord injury, and 305 patients with thoracic and lumbar cord injury (mainly T12-L1). We invented CT-guided intraspinal injection in 2006 and stem cell transplantation via endovascular intervention in 2011 to treat sequela of spinal cord injury, which apparently improved the treatment effect. Since 2011, the improvement rate of patients with sequela of spinal cord injury has reached 96%......Read More >>

Spinal Cord Injury Cases

Name: Qanat Age: 32 Diagnosis: old spinal cord injury Nationality: kazakhstan The patient got spinal cord injury of T6 in a car accident in November 2006. He came to our department three times for 3 cycles of stem cells transplantation treatment in June 2009, March 2010, and April 2011.

To See MoreSpinal Cord Injury Cases >>

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Spinal Cord Injury

Spinal cord injury -- caused by direct/indirect external factors, there could be dyskinesia, sensory and sphincter dysfunction, dystonia and pathologic reflex at the injured segments. The injury level and clinical feature lie on the position and property of the primary injury.

Spinal Cord InjurySymptoms

Different injury segments have different symptoms and signs, we can distinguish the segment of injured spine from the injury features: 1. Upper cervical spinal ( C1-4 ) 2. Lower cervical spinal ( C5-8 ) injury 3. Thoracic spine ( T1-12 ) injury 4. Intumescentia lumbar ( L1-S2 ) injury 5. Conus medullaries ( S3-5 ) injury 6. Cauda equnia injury Read MoreSpinal Cord Injury Symptoms >>

AboutUs

The Stem Cell Department of General Hospital of Chinese Peoples Armed Police Forces andthe 309th Hospital of Chinese People's Liberation Army is the first neural stem cell transplantation center at home and abroad, which went through WHO clinical trial registration, obtained the FDA clinical trial approval and had laboratory with GMP certification of stem cell research and preparation. Leaders in stem cell treatments for cerebral palsy, spinal cord injury, traumatic brain injury syndrome, ulcerative colitis, cirrhosis, stroke, diabetes and multiple system atrophy.Till now, we have used stem cell therapy to treat about 10,000+ patients from more than 30 countries. More About Us >>

Originally posted here:
Spinal Cord Injury (SCI) - Stem Cell Therapy China

Scientists at The University of Queensland have taken a significant step forward in cardiac disease research by creating a functional beating human heart muscle from stem cells.

Dr James Hudson and Dr Enzo Porrello from the UQ School of Biomedical Sciences collaborated with German researchers to create models of human heart tissue in the laboratory so they can study cardiac biology and diseases in a dish.

The patented technology enables us to now perform experiments on human heart tissue in the lab, Dr Hudson said.

This provides scientists with viable, functioning human heart muscle to work on, to model disease, screen new drugs and investigate heart repair.

The UQ Cardiac Regeneration Laboratory co-leaders have also extended this research and shown that the immature tissues have the capacity to regenerate following injury.

In the laboratory we used dry ice to kill part of the tissue while leaving the surrounding muscle healthy and viable, Dr Hudson said.

We found those tissues fully recovered because they were immature and the cells could regenerate in contrast to what happens normally in the adult heart where you get a dead patch.

Our goal is to use this model to potentially find new therapeutic targets to enhance or induce cardiac regeneration in people with heart failure.

Studying regeneration of these damaged, immature cells will enable us to figure out the biochemical events behind this process.

Hopefully we can determine how to replicate this process in adult hearts for cardiovascular patients.

Each year, about 54,000 Australians suffer a heart attack, with an average of about 23 deaths every day.

The UQ research has been supported by the National Health and Medical Research Council (NHMRC) and the National Heart Foundation.

Heart Foundation Queensland CEO Stephen Vines said the charity was excited to fund such an important research project.

Heart attack survivors who have had permanent damage to their heart tissue are essentially trying to live on half an engine, Mr Vines said.

The research by Dr Hudson and Dr Porello will help unlock the key to regenerating damaged heart tissue, which will have a huge impact on the quality of life for heart attack survivors.

Dr Hudson and Dr Porello are deserved recipients of our highest national research accolade the Future Leader Fellowship Award.

Reference:

Tiburcy, M., Hudson, J. E., Balfanz, P., Schlick, S. F., Meyer, T., Liao, M. C., . . . Zimmermann, W. (2017). Defined Engineered Human Myocardium with Advanced Maturation for Applications in Heart Failure Modelling and Repair. Circulation. doi:10.1161/circulationaha.116.024145

This article has been republished frommaterialsprovided by University of Queensland. Note: material may have been edited for length and content. For further information, please contact the cited source.

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'Beating' Heart Created from Stem Cells - Technology Networks

A team of scientists has developed a new safety index for a common group of chemotherapy drugs, by using a stem cell model to screen such therapies for their potential to damage patients hearts.

The study, published in Science Translational Medicine, was co-authored by Paul Burridge, PhD, assistant professor of Pharmacology.

Tyrosine kinase inhibitors (TKIs), a class of chemotherapy drugs, have become increasingly important in treating many types of cancer. But almost all TKIs are also associated with cardiovascular side effects ranging from arrhythmias to heart failure and there has not yet been an effective tool to predict this cardiotoxicity.

In the current study, the scientists demonstrated that human-induced pluripotent stem cells can be used to model how TKIs might affect the hearts of patients receiving chemotherapy.

To do so, the scientists took stem cells from both a control group and patients with cancer and reprogrammed them to become cardiomyocytes, or heart muscle cells. Using high-throughput screening, they then evaluated how the heart cells responded to treatment with 21 different FDA-approved TKIs, looking at factors like cell survival, signaling and alterations in their ability to beat properly.

With the stem-cell data, the scientists were able to create a cardiac safety index, which ranks the TKIs on their likelihood of inflicting heart damage. That index correlates with the toxicity that has been observed in patients clinically a validation that suggests the screening system might be a powerful tool in predicting toxicity before therapies are ever administered to patients.

Future research could establish even more specific predictions, by comparing the genomes of patients who might experience a certain drug side effect, such as atherosclerosis, with those who dont. Long-term, what my lab is interested in is taking a patients whole genome and, based on the work weve done in the past, being able to predict whether a patient will have an adverse drug event, said Burridge, also a member of the Robert H. Lurie Comprehensive Cancer Center of Northwestern University. This is the whole idea of pharmacogenomics, or precision medicine: Everyone is going to have a different response to a drug, and that response good or bad is already encoded in all of us.

In the study, the scientists also discovered that administering insulin or insulin-like growth factor 1 alongside TKIs seemed to protect against some of the heart damage associated with the drugs. While its still early, this is the first step toward opening up a whole new field of identifying cardioprotectants to reduce the toxicity of these drugs, Burridge said.

This article has been republished frommaterialsprovided byNorthwestern University, Feinberg School of Medicine. Note: material may have been edited for length and content. For further information, please contact the cited source.

See the original post:
Stem Cell Cardiac Toxicity Model for Testing Chemotherapy Agents - Technology Networks

Palm Beach Post (blog)

Blinded by science: Women go blind after stem-cell treatment at Florida clinic Palm Beach Post (blog) In 2010, for example, a woman with the autoimmune disease lupus died after her own bone marrow cells were injected into her kidneys at a clinic in Thailand. In 2013, the Florida Department of Health revoked the medical license of Zannos Grekos over the ... Stem cells seem speedier in spacePhys.Org Stem cell therapy is safe for stroke patients, study showsScience Daily Borrowing from nature: UW-Madison scientists use plants to grow stem cellsMadison.com American Council on Science and Health -Medgadget (blog) -The Republic of East Vancouver all 34 news articles »

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Blinded by science: Women go blind after stem-cell treatment at Florida clinic - Palm Beach Post (blog)

Neuroscientists at the Wisconsin-based Wicab Inc have developed a device called BrainPort that helps blind people see with their tongues. According to the late co-founder of the company, neuroscientist Paul Bach-y-Rita, we see with our brains and not with our eyes, so it should be possible to develop devices that allow the blind to see.

BrainPort involves collecting visual data using a small digital camera that the blind person wears on a pair of sunglasses. The digital optical signals are then converted by a central processing unit (CPU) about the size of a cell phone that the blind person carries in his/her pocket into electrical signals, simulating and replacing the function of the retina. The CPU then sends the signals to sensors on the surface of a lollipop-like device that the blind person carries in the mouth. The nerves on the tongue receive these signals and transmit them to the brain, thereby creating the images of the object being viewed. With a little learning, the user can distinguish between a knife and a fork on the dining table and read letters and numbers and decipher them on the buttons in an elevator.

The device originally announced in 2009 has been tested extensively at the University of Pittsburgh Medical Centres UPMC Eye Centre and is now commercially available. In a subsequent development, the images can be transferred to the brain by an arm band through the nervous system in the arms. This avoids the use of lollipop devices.

Another way to restore vision for the blind has been developed by Prof. Michael Beauchamp at the University of Texas. He is exploring the possibility of electrically stimulating the visual cortex of the brain by means of electrical implants. He also believes that we see not with our eyes but with our brains and if electrical images generated from the visual objects can be transferred to the correct region of the brain, vision can be restored. About 10 percent of the blind people experience vivid hallucinations. This is attributed to the hyperactivity of the visual cortex of the brain and the images produced can be seen in exquisite detail. It is envisaged that a webcam fitted on the glasses of the blind person could be connected to an implant in the brain to restore vision.

The ability to record brain activity while seeing an image, and then play it back to reconstruct that image has been a matter of pure science fiction until now. Scientists working at the University of California, Berkeley, have succeeded in reconstructing visual images after recording the brain activity of people watching movie trailers. The scientists were able to see what peoples brains were seeing. They used a functional Magnetic Resonance Imaging (fMRI) scanner to record the flow of blood in certain parts of the brain. Using powerful computing techniques, it was possible to correlate the visual images with corresponding brain activities. This allowed the images to be reconstructed. The researchers hope to eventually read the thoughts of patients in a coma or those suffering from a paralysis after a stroke. They can even apply these techniques on spies who are trying to hide information. Researchers have now also succeeded in reconstructing words by detecting peoples corresponding brain activity.

Another area of intense research activity is that of regenerative medicine that involves the growth of human cells and tissues. Indeed stem cell therapy is heralding the advent of a revolution in medicine to repair damaged kidney and heart cells and to treat diabetes and other diseases. Stem cells can be differentiated into different types of specialised cells (heart, kidney, pancreas etc). Adult stem cell therapies have been used for a long time to treat leukaemia and other cancers by bone marrow transplants.

Now a special bandage, seeded with stem cells, has been developed by scientists at the Bristol University in the UK to repair cartilage tears that are otherwise difficult to heal. The bone marrow is extracted from the hip of the patient with a needle. Stem cells are obtained from it and multiplied separately before being embedded into a special membrane/bandage which is inserted into the torn cartilage. The stem cells present on the membrane are expected to help the healing process. The procedure can help repair meniscus tears that are particularly common in athletes.

Ink jet printers are commonly used for printing documents. An astounding breakthrough has been made by doctors at the Wake Forest Institute of Regenerative Medicine in the US where a device that resembles an ink jet printer can be used to spray new skin cells on to burn wounds. This method results in rapid healing and can eventually replace the need for having skin grafts. The device resembles a colour ink jet printer and comprises a tank that contains skin cells, stem cells and nutrients. These are sprayed by a computer controlled nozzle directly on to the burnt area. In animal experiments, the wounds in mice were fully healed within two weeks using this technique compared to the five-week period that skin graft procedures took. The ink jet printer method also showed less scarring and better hair regeneration. The technology is being employed by the US army to print-shut bullet wounds and blast damage.

Magicians have been practising the art of making objects disappear for centuries. Now, science can take on that role. In 2006, Prof. John Pendry and his colleagues proposed the design of a cloak that could steer light around an object, making it invisible. Soon thereafter Dr David Smith at Duke University made a cloaking device that used certain metamaterials that had unusual electromagnetic properties. The invisible threads of these metamaterials are made of components smaller than the wavelength of light. This allows them to bend light waves and impart optical properties that are not present in normal substances. Computer models indicate that such threads should not be thicker than a micrometre. When these carpet cloaks are placed over an object, the object becomes invisible.

The technology has applications in defence: it may allow soldiers, weapons, warships and planes to appear invisible. Harry Potters cloak of invisibility is fast becoming a reality. Invisible armies, ships, planes and submarines cloaked by metamaterials seem like a possibility in the near future.

Countries investing in these cutting edge researches are making billions of dollars through such entrepreneurial ventures. If Pakistan is to prosper, we must give the highest national priority to education, science, technology, innovation and entrepreneurship. This requires a visionary government that understands the critical role of a knowledge-based economy in the rapidly changing world of today.

The writer is chairman of UN ESCAP Committee on Science Technology & Innovation and former chairman of the HEC.

Email: [emailprotected]

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Disruptive innovations - The News International