It's not the amount of fat, but the ability to store fat in the right locations, that equates to good metabolic health in humans. In part, for this to occur, new fat cells must be made "on demand" when the body has an energy surplus. John Bracht, American University biology assistant professor, and his students discovered a new type of cell state that could help ensure one always has the ability to generate healthy fat cells. The finding falls in line with increasing scientific discoveries elucidating how complex our cells are and how much we have yet to learn about their makeup. The discovery involves stem cells. Stem cells are usually thought of as replicating cells. Other cells perform specific functions. To turn into a specialized cell, a stem cell must be given instructions. As the team grew stem cells in the petri dish, they noticed some stem cells not following orders. They were curious. If the stem cells wouldn't turn into fat cells, then what did they become? Eventually, the … [Read more...] about Researchers Discover New Type of Stem Cell State
Limbal stem cells
On the first Saturday of March, Kristin Comella put on a white doctor’s coat and took the stage at the fourth annual conference for the Academy of Regenerative Practices. The founder and president of the academy, Comella also oversees an expanding empire of stem cell clinics that promise patients cures for most anything that ails them. None of those treatments—for everything from diabetes and asthma to multiple sclerosis and arthritis—have been approved by the US Food and Drug Administration. The procedure—which costs a few thousand dollars—is always pretty much the same, regardless of its purported target. It involves sucking out some of a patient’s fat tissue with a liposuction needle, isolating the stem cells within, and reinjecting them into the patient’s body. The simplicity of the procedure is why people like Comella say it’s “insane” for the FDA to try to regulate stem cells. So it was surprising when she announced … [Read more...] about Is This Stem Cell Clinic Really Making Cancer Vaccines?
Doris Tyler lay on the examining table as the doctor stuck a long, thin tube into her belly. The doctor pulled back a plunger, and the syringe quickly filled with yellow blobs tinged with pink.“Look at that beautiful fat coming out. Liquid gold!” one of the clinic’s staff exclaimed in a video of the procedure provided to The Washington Post.Hidden in that fat were stem cells with the amazing power to heal, the Stem Cell Center of Georgia had told Tyler. The clinic is one of hundreds that have popped up across the country, many offering treatments for conditions from Parkinson’s disease to autism to multiple sclerosis.Federal regulators have not approved any of their treatments, and critics call such clinics modern-day snake-oil salesmen. But on that day in 2016, Tyler trusted the clinic to extract stem cells from her fat and inject them into her eyes, where she was told they could halt or even cure the macular degeneration threatening her sight.Five days after … [Read more...] about Miracle cures or modern quackery? Stem cell clinics multiply, with heartbreaking results for some patients.
SZEGED, Hungary, April 18 (Reuters) - Igor, a Siberian tiger in a Hungarian zoo, received stem-cell joint treatment on Wednesday which doctors hoped would help heal its hip and allow it to live happily, on less medicine.Igor is a 13-year old tiger living in the zoo in the southern Hungarian town of Szeged. It has been suffering from hip joint pains for years.The treatment, used more widely on humans than animals, cures injured joints with tissue taken from patients' own fatty tissue, which contains regenerative stem cells, doctors said. These are injected back into the ailing joints. 10 PHOTOS Siberian tiger gets stem-cell hip treatment in Hungary See Gallery Siberian tiger gets stem-cell hip treatment in Hungary Veterinarian, Robert Gippert (R) performs non invasive stem cell surgery on Igor, the 13 year-old Siberian tiger in Zoo Szeged, Hungary, April 18, 2018. REUTERS/Bernadett Szabo Igor, the 13 year-old Siberian tiger lies on the operation table before the … [Read more...] about Siberian tiger gets stem-cell hip treatment in Hungary
Getting older is supposed to give you perspective. But for one out of five people over the age of 65, it does the opposite. Macular degeneration is a common progressive eye condition, one that thins and breaks down a tissue behind the center of the retina. Without that tissue, the light-sensing cells it supports atrophy and die, making it impossible to get a clear picture of anything straight ahead of you—like, say, the faces of your loved ones or anything past your steering wheel. Treatments can slow the loss of vision, but there’s no way to reverse it. Which is why scientists have long been excited about the prospect of using stem cells to restore that tissue, and with it the sharp central vision necessary for driving, reading, and navigating the world. Clinical trials in the last few years have shown that injecting stem cell-derived retinal pigment cells into the eye can be done safely. But so far they haven’t been that effective, because the support cells often … [Read more...] about With Some Structure, Stem Cells Might Still Stop Vision Loss