Page 3,416«..1020..3,4153,4163,4173,418..3,4303,440..»

Bionic eye implants let Canadian patients perceive light

Posted: Published on October 15th, 2014

CTVNews.ca Staff Published Tuesday, October 14, 2014 12:13PM EDT Last Updated Tuesday, October 14, 2014 6:03PM EDT For the first time ever in Canada, two patients with severely impaired vision have received bionic eyes that will not restore their sight, but will allow them to once again perceive light. Doctors at Toronto Western Hospital say the two patients have retinitis pigmentosa, a degenerative disease in which the retina progressively becomes so damaged that most, if not all, vision is lost. The bionic eye is known officially as the Argus II Retinal Prosthesis Device, and has two parts: The patient is outfitted with a pair of glasses with a built-in video camera, while a prosthesis the size of a pencil eraser is surgically implanted onto the retina. Information from the camera is wirelessly transmitted to electrodes in the implant and converted to electrical pulses. These electrical pulses are turned into images, which are transmitted to the brain, Toronto Westerns Dr. Robert Devenyi explained to CTV News. The patient must undergo intensive rehabilitation to learn how to process these images, he said. The device stimulates the retina the same way that light normally does, just electronically, Devenyi said. It really allows us … Continue reading

Posted in Retinitis Pigmentosa | Comments Off on Bionic eye implants let Canadian patients perceive light

"In Transit" by D'Quan Brown – Video

Posted: Published on October 15th, 2014

"In Transit" by D'Quan Brown In 2012, 10 yr old D'Quan Brown was diagnosed with leukemia and admitted for immediate care at a South Florida children's hospital. 6 days later, he suffered a spinal hematoma that subsequently... By: DeQuido Brown … Continue reading

Posted in Stem Cell Transplant | Comments Off on "In Transit" by D'Quan Brown – Video

Stem-cell success poses immunity challenge for diabetes

Posted: Published on October 15th, 2014

Suzanne Kreiter/Boston Globe/Getty A research team led by Douglas Melton (left) has made insulin-secreting cells using human stem cells. Each year, surgeon Jose Oberholzer frees a few people with type1 diabetes from daily insulin injections by giving them a transplant of the insulin-secreting -cells that the disease attacks. But it is a frustrating process. Harvested from a cadavers pancreas, the -cells are in short supply and vary in quality. And the patients must take drugs to suppress their immune response to the foreign cells, which can in turn cause kidney failure. On 9October, stem-cell researcher Douglas Melton of Harvard University in Cambridge, Massachusetts, and his colleagues reported an advance that has the potential to overcome Oberholzers frustrations and allow many more people with type1 diabetes to receive transplants. Melton and his team have achieved a long-term goal of stem-cell science: they have created mature -cells using human stem cells that can be grown from a potentially unlimited supply, and that behave like the real thing (F.W.Pagliuca etal. Cell 159, 428439; 2014). The next challenge is to work out how to shield these -cells from the bodys immune response. Researchers had previously created immature -cells from stem cells and transplanted them … Continue reading

Posted in Stem Cell Transplant | Comments Off on Stem-cell success poses immunity challenge for diabetes

Blind See Again After Stem Cell Transplant

Posted: Published on October 15th, 2014

Injecting stem cells into the eyes of people who are blind may work as a way to restore their vision, a small new study suggests. In the study, researchers coaxed stem cells into developing into cells called retinal pigment epithelium cells, which the scientists transplanted into one eye of each of 18 patients. After the transplants, the researchers tested the patients' eyesight. Visual acuity improved in 10 of the patients' eyes, remained about the same in another seven patients and got worse in one patient's eye. The participants experienced no improvement in their untreated eyes. The results show that human embryonic stem cells can slow or reverse the vision loss in people with degenerative eye diseases, the researchers said. In addition, the stem cells caused no medical problems for the patients up to three years after transplant, according to the study published in the journal The Lancet. Stem cells, with their ability to develop into many different types of tissue, have long been touted for their promise in regenerative medicine, yet treatments have been slow to develop. The new findings"mark an exciting step towards using [human embryonic] stem cells as a safe source of cells for the treatment of various … Continue reading

Posted in Stem Cell Transplant | Comments Off on Blind See Again After Stem Cell Transplant

Aesthetic Surgery Journal Article Highlight With Jeff Kenkel – Video

Posted: Published on October 15th, 2014

Aesthetic Surgery Journal Article Highlight With Jeff Kenkel Dr. Jeff Kenkel (UT Southwestern) presents this month's Article Highlight in the Aesthetic Surgery Journal. Watch as he discusses the effectiveness of prophy... By: ASJOnline … Continue reading

Posted in Aesthetic Surgery | Comments Off on Aesthetic Surgery Journal Article Highlight With Jeff Kenkel – Video

Marius Wernig receives New York Stem Cell Foundation's Robertson Stem Cell Prize

Posted: Published on October 15th, 2014

PUBLIC RELEASE DATE: 14-Oct-2014 Contact: David McKeon DMcKeon@nyscf.org 212-365-7440 New York Stem Cell Foundation @nyscf NEW YORK, NY (October 14, 2014) The New York Stem Cell Foundation (NYSCF) announced today that Marius Wernig, PhD, Associate Professor in the Institute for Stem Cell Biology and Regenerative Medicine and the Department of Pathology at Stanford University School of Medicine, is the 2014 recipient of the NYSCF Robertson Stem Cell Prize, which has been awarded since 2011 for extraordinary achievements in translational stem cell research by a young scientist. Dr. Wernig and his team discovered that human skin cells can be converted directly into functional neurons, termed induced neuronal (iN) cells, in a period of four to five weeks with the addition of just four proteins. "Dr. Wernig's groundbreaking research has the potential to accelerate all research on devastating neurodegenerative diseases," said Susan L. Solomon, CEO and Co-founder of NYSCF. "His work can impact and accelerate research on multiple sclerosis, Alzheimer's disease, and autism among many other conditions." At Stanford, Dr. Wernig focuses on using induced pluripotent stem (iPS) cells and iN cells for disease modeling and as potential cellular therapy. This new technique transformed the field of cellular reprogramming by eliminating the … Continue reading

Comments Off on Marius Wernig receives New York Stem Cell Foundation's Robertson Stem Cell Prize

Penn Medicine researcher receives New Innovator Award from National Institutes of Health

Posted: Published on October 15th, 2014

PUBLIC RELEASE DATE: 13-Oct-2014 Contact: Karen Kreeger karen.kreeger@uphs.upenn.edu 215-349-5658 University of Pennsylvania School of Medicine @PennMedNews PHILADELPHIA Roberto Bonasio, PhD, an assistant professor of Cell and Developmental Biology, Perelman School of Medicine at the University of Pennsylvania, and a core member of the Penn Epigenetics Program is one of the recipients of a 2014 New Innovator Award from the National Institutes of Health (NIH). The NIH Director's New Innovator Award, totaling $1.5 million over five years for each of the 50 recipients this year, supports highly innovative research and creative, new investigators who exhibit strong potential to make great advances on a critical biomedical or behavioral research problem. The initiative, established in 2007, supports investigators who are within 10 years of their terminal degree or clinical residency, who have not yet received a research project grant (R01), or equivalent NIH grant, to conduct unusually innovative research. Bonasio studies the molecular mechanisms of epigenetic memory, which are key to a number of biological processes, including embryonic development, cancer, stem cell pluripotency, and brain function. In particular, he will be looking at gene expression controlled by epigenetic pathways that alter the chemical structure of chromosomes and allow for multiple cell identities to … Continue reading

Comments Off on Penn Medicine researcher receives New Innovator Award from National Institutes of Health

One MS patient's 'starting line' for stem cell therapy

Posted: Published on October 15th, 2014

By Richard M. Cohen image courtesy Richard Cohen I am one of twenty struggling every day with multiple sclerosis to be included in an innovative, phase one stem cell clinical trial at the Tisch MS Research Center of New York. Now theres a mouthful. Please let me explain. Many of us read tidbits about cell therapy and think it simply is space-age medicine that will be launched in the future. In fact, we are at the starting line now, and the race has begun. A phase one trial tests safety. The group is small, and all are treated with the real thing. No placebos, sugar pills. The trial tests autologous cells, which mean our own. That eliminates rejection and alters risk. No new medical procedure comes risk-free, but the dangers are minimal. The stem cells are pulled from bone marrow harvested from our breast bones. Sounds hideous. It is not. In this trial, the stem cells are infused directly into the spinal column. Nope. Not painful at all. Then we watch and wait. Results, if there are to be any, can take many months to show themselves. This particular procedure has never been used before. I was the first in … Continue reading

Comments Off on One MS patient's 'starting line' for stem cell therapy

Embryonic stem cells transplanted into eyes of blind restore sight

Posted: Published on October 15th, 2014

No effective treatments exist for either (AMD) or Stargardt's macular dystrophy, both of which can result in complete blindness caused by the loss of light-receiving photoreceptor cells in the retina. The new treatment uses stem cells to recreate a type of cell in the retina that supports those photoreceptors. Stem cells derived from embryos that are only a few days old have the ability to develop into any kind of tissue in the body. By bathing the stem cells in a specially formulated cocktail of chemicals the scientists were able to stimulate them into turning into fully mature retinal pigment epithelium cells. They were then transplanted directly into the eyes of patients suffering from blindness. Tests showed substantial improvement in 10 of 18 treated eyes. Eight patients were able to read more than 15 additional letters on a sight chart in their first year after treatment. "Embryonic stem cells have the potential to become any cell type in the body, but transplantation has been complicated by problems including the risk of tumour formation and immune rejection, said Professor Robert Lanza, chief scientific officer at the US company Advanced Cell Technology, which funded the research. "As a result, sites that do … Continue reading

Posted in Stem Cell Human Trials | Comments Off on Embryonic stem cells transplanted into eyes of blind restore sight

Stem Cells Seem Safe in Treating Eye Disease

Posted: Published on October 15th, 2014

A treatment based on embryonic stem cells clears a key safety hurdle, and might help restore vision. When stem cells were first culled from human embryos 16 years ago, scientists imagined they would soon be treating diabetes, heart disease, stroke, and many other diseases with cells manufactured in the lab. Its all taken longer than they thought. But today, a Massachusetts biotech firm reported results from the largest, and longest, human test of a treatment based on embryonic stem cells, saying it appears safe and may have partly restored vision to patients going blind from degenerative diseases. Results of three-year study were described today in the Lancet by Advanced Cell Technology and collaborating eye specialists at the Jules Stein Eye Institute in Los Angeles who transplanted lab-grown cells into the eyes of nine people with macular degeneration and nine with Stargardts macular dystrophy. The idea behind Advanced Cells treatment is to replace retinal pigment epithelium cells, known as RPE cells, a type of caretaker tissue without which a persons photoreceptors also die, with supplies grown in laboratory. It uses embryonic stem cells as a starting point, coaxing them to generate millions of specialized retina cells. In the study, each patient … Continue reading

Posted in Stem Cell Human Trials | Comments Off on Stem Cells Seem Safe in Treating Eye Disease

Page 3,416«..1020..3,4153,4163,4173,418..3,4303,440..»