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Tag: "surplus" at biology news

UCLA study uncovers clues for why Graves' disease attacks the eyes

...T-cells taken from GD patients contain an abnormal surplus of the receptor targeted by this antibody. An antibody must latch to a specific receptor ?like a key into a lock -- in order to elicit a cellular response. The receptors mobbed the patients?immune systems, even on T-cells that normally would not pr...

Many couples choose to donate surplus embryos for stem cell research

... presented with four options for the fate of their surplus embryos. The researchers found that 49% of couples chose to donate their embryos for stem cell research, 44% decided to keep them in storage for their own future use, 7% opted to donate them to other infertile couples, and fewer than 1% made the deci...

Scientists crack genetic secrets of human egg

... All the donors granted informed consent for their surplus eggs to be used for this research. Cibelli worked with researchers in Chile to extract the RNA from the unfertilized eggs soon after they were harvested. That material (atreasure of genetic information,) was frozen and shipped to MSU. Cibelli's t...

Molecules in blood foretell development of preeclampsia

...evels of circulating VEGF in the bloodstream. The surplus VEGF would bind to the high levels of sFlt1 produced during preeclampsia, but enough free VEGF would still be available to attach to cell surface receptors to promote the health of blood vessels. Dr. Levine cautioned, however, that such attempts to...

Researchers find cause of frontotemporal dementia

.... Progranulin is known in cancer research, where a surplus of this protein leads to tumors. What it does in the brain, and how it supports brain cells, is not yet known. An unexpected turn The biological role of progranulin in the formation of FTD provides a totally new insight into how brain cells die ...

New egg freezing technique offers hope to hundreds of women

... to patients as an alternative to disposing of any surplus oocytes. Surplus oocytes become available in 78.5% of IVF cycles." Her research into the potential of freeze-thawing eggs, using conventional methods of slow freezing and rapid thawing, revealed the consequences of freezing on fertilisation, subsequ...

Recreating 'Flowers for Algernon' with a happy ending

...rain, like grooves on a record," said Silva. "But surplus Ras tips the balance between switching signals on and off in the brain. This interrupts the delicate cell communication needed by the brain to record learned information." The UCLA team began searching for a safe drug that would zero in on Ras and ...

Vietnam war technology could aid elephant conservation

...phant numbers. Another team tried to use a US Army surplus miniature seismic system to detect crop raiding Asian elephants in Sri Lanka, but the work was abandoned after the elephants began digging up the geophones and destroying them. Making accurate estimates of elephant populations is essential for their...

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