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neurosecretion
Neurosecretion is the storage, synthesis and release of hormones from neurons. These neurohormones, produced by neurosecretory cells, are normally secreted from nerve cells in the brain that then circulate into the blood. These neurohormones are similar to nonneural endocrine cells and glands in that they also regulate both endocrine and nonendocrine cells. Neurosecretion cells also release their product farther than normal neurons, which only secrete short distances, into the extracellular space some distance from the target cell.〔(【引用サイトリンク】url=http://www.accessscience.com/abstract.aspx?id=450200&referURL=http://www.accessscience.com/content.aspx%3fid%3d450200 )〕〔(【引用サイトリンク】url=http://biology-online.org/dictionary/Neurosecretion )〕
==Discovery==
In 1928, Ernst Scharrer hypothesized that neurosecretory neurons in the hypothalamus of teleost fish, Phoxinus laevis, had secretory activity similar to that of endocrine gland cells. As more became known about neurosecretory cells, the difference between the actions of nerve communication and endocrine hormone release become less clear. Like the average neuron, these cells conduct electrical impulses along the axon but unlike theses neurons, neurosecretion produces neurohormones that are released into the body’s circulation. Combining the properties of the nervous and endocrine, these cells have the capacity to affect nerves through chemical messengers. Neurosecretion is a broad area of study and must be further observed to be better understood.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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