兒茶酚胺

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兒茶酚胺(英語:Catecholamines)是具有兒茶酚核的(苯乙)類化合物的統稱,是由腎上腺產生的一類應激擬交感鬥或逃」(Fight or Flight)激素。最重要的兒茶酚胺是腎上腺素(Epinephrine)、去甲腎上腺素正腎上腺素)和多巴胺(Dopamine),均是從苯丙氨酸酪氨酸合成。不少精神興奮劑也是兒茶酚胺的類似物。

兒茶酚胺有去甲腎上腺素(NAd)、腎上腺素(Ad)、多巴胺(DA),過多的兒茶酚胺分泌可能導致高血壓和心肌梗塞。而低水平的兒茶酚胺可能引起低血壓、心肌缺血等的發生 、在臨床上兒茶酚胺常被用來治療神經源性、心源性、中毒源性休克早期,但過多劑量可能導致局部組織壞死或者腎臟衰竭。

經由L-酪氨酸,兒茶酚胺的生物合成。

化學結構[編輯]

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外部連接[編輯]

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