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首页> 外文期刊>Proceedings of the National Academy of Sciences of the United States of America >Dopamine supersensitivity correlates with D2~(High) states, implying many paths to psychosis
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Dopamine supersensitivity correlates with D2~(High) states, implying many paths to psychosis

机译:多巴胺超敏反应与D2〜(高)状态相关,这暗示着许多通往精神病的途径

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摘要

Dopamine supersensitivity occurs in schizophrenia and other psychoses, and after hippocampal lesions, antipsychotics, ethanol, amphetamine, phencyclidine, gene knockouts of Dbh (dopamine β-hydroxylase), Drd4 receptors, Gprk6 (G protein-coupled receptor kinase 6), Comt (catechol-O-methyltransferase), or Th~(-/-), Dbh~(Th/+) (tyrosine hydroxylase), and in rats born by Cesarean-section. The functional state of D2, or the high-affinity state for dopamine (D2~(High)), was measured in these supersensitive animal brain striata. Increased levels and higher proportions (40-900%) for D2~(High) were found in all these tissues. If many types of brain impairment cause dopamine behavioral supersensitivity and a common increase in D2~(High) states, it suggests that there are many pathways to psychosis, any one of which can be disrupted.
机译:多巴胺超敏反应发生在精神分裂症和其他精神病患者中,在海马病变,抗精神病药,乙醇,苯丙胺,苯环利定,Dbh(多巴胺β-羟化酶),Drd4受体,Gprk6(G蛋白偶联受体激酶6),Comt(儿茶酚)的基因敲除后发生-O-甲基转移酶)或Th〜(-/-),Dbh〜(Th / +)(酪氨酸羟化酶),以及剖宫产出生的大鼠。在这些超敏感动物脑纹状体中测量了D2的功能状态或多巴胺的高亲和力状态(D2〜(High))。在所有这些组织中发现D2〜(高)的水平升高,比例更高(40-900%)。如果许多类型的脑部损伤引起多巴胺行为超敏反应并导致D2〜(高)状态普遍升高,则表明存在多种精神病途径,其中任何一种均可被破坏。

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