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HIV attack

10. December 2007

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A brilliant animation showing the the mechanism of HIV attack.

NOTE: This video is is strictly intended for education and non-commercial use only.
SOURCE:xvivo.net

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The “Menstrual blood” cells are a rich source of stem cells.

17. November 2007

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The “monthly curse” may be anything but: menstrual blood appears to be a rich and easily accessible source of adult stem cells, claim two competing research groups.

Each month, after a woman’s uterine lining is shed, it has to be rebuilt in preparation for a fertilised egg. This feat involves growing the billions of cells making up the 5 millimetre-thick lining in just seven days.

Recent research has indicated that the uterine lining, or endometrium, is a rich source of adult stem cells. But retrieving those cells is as invasive as harvesting adult stem cells from other sources, such as bone marrow.

Now two separate groups say they have found these endometrial stem cells in menstrual blood.

Both groups say the cells in question show all the hallmarks of stem cells: they replicate themselves without differentiating, they can be made to differentiate into many different cell types under the right conditions, and they show characteristic cell surfaces of stem cells.
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Twin girl with eight limbs to have surgery

5. November 2007

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Lakshmi Tatma is a two-year-old girl named after the Hindu goddess of wealth who has four arms. She was believed to have been “sent from God” when she was born to a poor rural family in the Indian state of Bihar.

s news of her birth spread among the 500 inhabitants of Rampur Kodar Katti — a remote settlement without electricity or running water — men, women and children queued for a darshan, or blessing, from the baby.

However, it will require the latest techniques in medical science to separate Lakshmi from her “parasitical”, headless, undeveloped “twin”, which is joined to her body at the pelvis.

The £100,000 operation will require differently skilled teams of more than 30 surgeons to work in eight-hour shifts to separate Lakshmi’s spinal column and kidney from that of her twin.

After attempting to transplant the shared kidney wholly into Lakshmi’s body, another team of surgeons will gradually close up her pelvic girdle while re-orientating her bladder and genital systems. Plastic surgeons will then graft skin to cover her wounds while an “external fixator” will be attached to close her pelvis gradually over a three-week period.

SOURCE

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