长期使用合成代谢雄激素类固醇后,雄性大鼠大脑中多巴胺能和5-羟色胺能活性增加。

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西布林I,芬恩A,罗斯SB,斯托夫斯C

长期使用合成代谢雄激素类固醇后,雄性大鼠大脑中多巴胺能和5-羟色胺能活性增加。

中国药物学杂志。1999 3月;126(6):1301-6。

PubMed ID
10217522 (PubMed视图
摘要

1.用四种不同的合成代谢雄激素类固醇(AAS)(睾酮、诺龙龙、甲雄烯酮和氧甲龙龙)治疗各组大鼠对不同大脑区域的5-羟色胺(5-HT)和多巴胺(DA)神经元的影响进行了检查。AAS注射6次,间隔1周,最后一次注射后2天处死大鼠。测定了5-HT及其代谢产物5-羟基吲哚乙酸(5-HIAA)、DA及其代谢产物3,4-二羟基苯乙酸(DOPAC)和高香草酸(HVA)。用NSD-1015(3-羟基-苄基肼二盐酸盐)抑制氨基酸脱羧酶后,对DA和5-HT合成速率的影响分别为3,4-二羟苯丙氨酸(DOPA)和5-羟色氨酸(5-HTP)的积累。2.各治疗组纹状体DOPAC + HVA/DA比值均升高。然而,只有甲雄甾酮处理组的DA合成速率显著增加。3. The 5-HIAA/5-HT ratio was increased in all treatment groups in the hippocampus, in the frontal cortex in the methandrostenolone-treated animals and in the hypothalamus in the testosterone- and oxymetholone-treated rats, while the 5-HT synthesis rate was not affected by the AAS-treatments. 4. The MAO-A activity was increased in the oxymetholone-treated rats while the other treatment groups were unaffected. The MAO-B activity was not changed. 5. The results indicate that relatively high doses of AAS increase dopaminergic and 5-hydroxytryptaminergic metabolism in male rat brain, probably due to enhanced turnover in these monaminergic systems.

引用本文的药物库数据

药物酶
药物 种类 生物 药理作用 行动
Oxymetholone 胺氧化酶[含黄素 蛋白质 人类
未知的
诱导物
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