News tagged with hormone

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

Approval of test to diagnose adrenal cancer

A new analytical test has been launched in the UK that provides sensitive, specific and efficient predictive analysis of a rare form of cancer from a simple urine sample. The ACC steroid analysis service will be marketed ...

Sep 21, 2016
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Italy's 100 club village reveals its secret

Scientists on Monday revealed part of the secret to why a small village in southern Italy has an unusual number of centenarians—low levels of a particular hormone that affects circulation.

Sep 05, 2016
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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

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