News tagged with hormone

Related topics: breast cancer , women , plants , estrogen , protein

Ukraine's former world's tallest man dies

Ukraine's tallest man, who briefly held the world record but gave it up to live as a recluse, has died due to complications from the condition that saw him never stop growing, local media reported Monday.

Aug 25, 2014
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Endogenous hormones improve breast cancer risk models

(HealthDay)—Inclusion of endogenous hormones in prediction models improves prediction of invasive breast cancer risk in postmenopausal women, according to a study published online Aug. 18 in the Journal of ...

Aug 22, 2014
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New test helps diagnose type 1 diabetes

(HealthDay)—The U.S. Food and Drug Administration has approved a new test that may help doctors diagnose type 1 diabetes, the most common form diagnosed in children and adolescents.

Aug 21, 2014
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Capturing false hormones

They damage our ability to reproduce, and they pollute the natural environment. Yet chemicals known as hormone mimics can be found in consumer goods. Eventually they end up in our water. But we now have a way of capturing ...

Aug 15, 2014
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Early hormone therapy may be safe for women's hearts

(HealthDay)—Healthy women at low risk of cardiovascular disease may be able to take hormone replacement therapy soon after menopause for a short time without harming their hearts, according to a new study.

Jul 28, 2014
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Hormone

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.

This text uses material from Wikipedia licensed under CC BY-SA