News tagged with hormone
Related topics: breast cancer , women , plants , estrogen , protein
Hormones (from Greek ὁρμή - "impetus") are chemicals released by cells that affect cells in other parts of the body. Only a small amount of hormone is required to alter cell metabolism. It is essentially a chemical messenger that transports a signal from one cell to another. All multicellular organisms produce hormones; plant hormones are also called phytohormones. Hormones in animals are often transported in the blood. Cells respond to a hormone when they express a specific receptor for that hormone. The hormone binds to the receptor protein, resulting in the activation of a signal transduction mechanism that ultimately leads to cell type-specific responses.
Endocrine hormone molecules are secreted (released) directly into the bloodstream, while exocrine hormones (or ectohormones) are secreted directly into a duct, and from the duct they either flow into the bloodstream or they flow from cell to cell by diffusion in a process known as paracrine signalling.
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Researchers at USC have found that a class of pharmaceuticals can both prevent and treat Alzheimer's Disease in mice.
Alzheimer's disease & dementia May 21, 2013 | 5 / 5 (7) | 0 |
Skydivers show the same level of physical stress before every jump whether a first-timer or experienced jumper, say Northumbria researchers.
Psychology & Psychiatry May 17, 2013 | not rated yet | 0 |
New research indicates that women's reproductive function may be tied to their immune status. Previous studies have found this association in human males, but not females.
Obstetrics & gynaecology May 17, 2013 | not rated yet | 0 |
Europe's medicines watchdog said Friday the benefits of acne drug Diane-35, also widely used as a contraceptive, outweigh the risk of developing blood clots in the veins—when correctly prescribed.
Medications May 17, 2013 | not rated yet | 0
Nearly three out of four pregnant women experience constipation, diarrhea or other bowel disorders during their pregnancies, a Loyola University Medical Center study has found.
Obstetrics & gynaecology May 20, 2013 | not rated yet | 0