Hormone
A hormone (from Greek ὁρμή, "impetus") is a chemical released by a cell or a gland in one part of the body that sends out messages that affect cells in other parts of the organism. Only a little amount of hormone is required to alter cell metabolism. In essence, it is 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.
Read more about Hormone.
Some articles on hormone:
... human growth hormone Eutropin(1993) - rhFSH (recombinant human follicle stimulating hormone) Follitrope(2006) - SR-hGH (Sustained Release-human Growth Hormone ...
... SM-130,686 is a drug which acts as a potent, orally active growth hormone secretagogue, with around half the potency of the endogenous agonist ghrelin as a stimulator of growth hormone release ... and is under investigation for the treatment of growth hormone deficiency and other medical conditions ... urine tests for SM-130,686 and other growth hormone secretagogues, even though no drugs from this class have yet progressed to clinical use ...
... In May 2005 Eastern Health discovered errors in hormone receptor breast cancer test results from a histology lab in St Johns, Newfoundland ... The tests were designed to register patients' hormone levels, and determine whether they could benefit from potentially life-saving hormone oncology ... board held a series of media briefings on the hormone receptor test errors, downplaying the seriousness and extent of the problems ...
... Gene Ontology Molecular function • receptor binding • hormone activity Cellular component • extracellular region Biological process • progesterone biosynthetic process ...