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Tag: "retinoic" at biology news

Researchers Closer To Helping Hearing-Impaired Using Stem Cells

.... The two molecules -- known as Sonic hedgehog and retinoic acid -- together caused the marrow stromal cells t...s with profound hearing loss. “Sonic hedgehog and retinoic acid are molecules found in embryonic tissues, but not in adult tissues,?said Dr. Hashino. “This sug...

Vitamin A's paradoxical role in influencing symmetry during embryonic development revealed

...monte and his Salk Institute colleagues found that retinoic acid (vitamin A) is the signal that buffers the in...cells to develop symmetrically. In the absence of retinoic acid, the exterior of our bodies would develop asymmetrically, with the result being that our right ...

Study shows how retinoic acid enters a cell's nucleus

... time how the cancer-fighting vitamin A derivative retinoic acid (RA) gains entry into a cell's nucleus. When... a ride on a water-soluble protein called cellular retinoic acid-binding protein type II (CRABP-II). This protein was discovered over two decades ago, but until...

One big biology question solved

...perm." Professor Koopman and his team found that retinoic acid, a derivative of Vitamin A, causes germ cells...d an enzyme present in male embryos that wipes out retinoic acid and so suppresses meiosis until after birth, resulting in sperm production. "This is an extre...

Effect on breast tumors of DNA alternations in 3 genes described

...tatus in three genes, known as E-cadherin, p16 and retinoic acid B2 receptor (RAR-B2), using tissue samples from 887 breast cancers. The samples were taken from women 35-79 years old who participated in the Western New York Exposures and Breast Cancer Study (WEB study). Extensive in-person interviews were us...

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