Word: bone-marrow
(lookup in dictionary)
(lookup stats)
Dates: all
Sort By: most recent first
(reverse)
...researchers Ernest McCulloch and James Till first proved the existence of stem cells, in the blood. These cells possess the ability to divide and create progeny - some of which will eventually expire, others that are self-renewing. The pair irradiated mice, destroying their immune cells. They then injected versatile bone-marrow cells into the animals' spleens and were surprised to see a ball of cells grow from each injection site. Each mass turned out to have emerged from a single stem cell, which in turn generated new blood cells...
...will use cells generated by Geron Corp. The approval marks the first time human stem cells, extracted and grown from embryos, will be transplanted into patients. Adult stem cells, which are present in many types of tissue, have been used in treatments for years - the most common being bone-marrow transplants in cancer care - but an embryonic study is a whole new thing. There's a good reason it's being greeted with so much excitement. (See the top 10 medical breakthroughs...
...Christmas Tale, Arnaud Desplechin's richly populated film about a fractious family gathering for the holidays in a provincial city. Deneuve is the curiously calm matriarch and least neurotic member of this brood. She needs a bone-marrow transplant if she is to survive the sudden onset of leukemia, which is something of a family curse. The best donor possibility is, naturally, one of her kin. The trouble is that they are apparently more interested in their own petty feuds than they are in rescuing her. That's especially true of Elizabeth (Anne Consigny), a glum playwright who, several years...
...this a viable cure for HIV? Not by a long shot. Even Huetter says bone-marrow transplants, which kill about a third of patients, are so dangerous that "they can't be justified ethically" in anything other than desperate situations like late-stage leukemia. Nor is it clear that Huetter's claim to have cured his patient is yet justified. HIV has a frustrating ability to hide in hard-to-detect "reservoir" cells in various parts of the body. Current antiviral drugs, for example, can lower a patient's "viral load" to the point that HIV is undetectable...
...Noble of the British AIDS charity Avert says recent setbacks for research into an AIDS vaccine, along with multiple false hopes in the search for a cure, have caused many in the HIV activism community to view Huetter's experiment warily. For many AIDS activists, bone-marrow transplantation is a loaded procedure that evokes a traumatic past: before antivirals were widely introduced in the 1990s, it was one of the aggressive and often fatal procedures doctors tried in their desperate effort to halt the epidemic; some of these transplants even used marrow harvested from baboons...