LONDON: Scientists have for the first time turned adult human skin cells into stem cells, which can grow into any type of tissue in the body, using cloning techniques.
Using the cloning technique which produced Dolly the sheep in 1996, researchers were able to turn skin cells from a 35-year-old man and a 75-year-old man into stem cells, raising the prospect that body parts could be regenerated in old age.
Last year, a team of researchers had created stem cells from the skin cells of babies but it was unclear whether it would work in adults because cells mutate with age.
OHSU research demonstrates not all embryonic stem cells are equal; produces the world’s first primate chimeric offspring
Newly published research by scientists at Oregon Health & Science University provides significant new information about how early embryonic stem cells develop and take part in formation of the primate species. The research, which took place at OHSU’s Oregon National Primate Research Center, has also resulted in the first successful birth of chimeric monkeys — monkeys developed from stem cells taken from two separate embryos. The research will be published this week in the online edition of the journal Cell and will be
Medical researchers are trying a new treatment for low back pain. Their hope is that harvesting and then re-injecting the body’s own bone marrow — which is rich in stem cells — may repair worn-out discs in the spine.
In a small new study, the approach appeared to be safe — and none of the patients reported that their pain got worse after the procedure.
But both the doctors who are testing the technique and outside experts say much more research is needed before they can say whether the treatment offers real relief.
“I tell everybody that this is experimental, with a
And now there are three: in the wake of announcements from laboratories in Oregon and California that they had created human embryos by cloning cells of living people, a lab in New York announced on Monday that it had done that and more.
In addition to cloning the cells of a woman with diabetes, producing embryos and stem cells that are her perfect genetic matches, scientists got the stem cells to differentiate into cells able to secrete insulin.
That raised hopes for realizing a long-held dream of stem cell research, namely, creating patient-specific replacement cells for people with diabetes, Parkinson’s disease,
For the first time, cloning technologies have been used to generate stem cells that are genetically matched to adult patients.
Fear not: No legitimate scientist is in the business of cloning humans. But cloned embryos can be used as a source for stem cells that match a patient and can produce any cell type in that person (…)
“This is a dream that we’ve had for 15 years or so in the stem cell field,” said John Gearhart, director of the Institute for Regenerative Medicine at the University of Pennsylvania. Gearhart first proposed this approach for patient-specific stem cell generation in