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J Addict Med:停用或减少使用可卡因或可降低内皮素-1分泌

2015-07-28 徐媛媛译 MedSci原创

在临床和流行病学证据表明,服用可卡因与过早动脉粥样硬化的风险增加相关。本研究的目标是探索可卡因是否与内皮素-1分泌降低有关、可卡因是否与冠状动脉斑块进展放缓有关等。 在2014年3月-6月期间,研究者对来自马里兰州的57名使用可卡因的黑人(冠脉狭窄<50%)进行了评估,在6个月的随访调查中,研究人员让受试者停用或减少可卡因的使用看是否降低endothelin-1(ET-1)水平以及在6个月的随访

在临床和流行病学证据表明,服用可卡因与过早动脉粥样硬化的风险增加相关。本研究的目标是探索可卡因是否与内皮素-1分泌降低有关、可卡因是否与冠状动脉斑块进展放缓有关等。

在2014年3月-6月期间,研究者对来自马里兰州的57名使用可卡因的黑人(冠脉狭窄<50%)进行了评估,在6个月的随访调查中,研究人员让受试者停用或减少可卡因的使用看是否降低endothelin-1(ET-1)水平以及在6个月的随访后冠状动脉斑块的进展。研究者统计了患者的社会人口因素、用药史及生活方式,并对受试者完成尿检、血检等体检。

在57名受试者中,44名感染艾滋病毒。受试者使用可卡因持续时间平均在18年以上(时间幅度7-30年)。结果显示,,6个月内使用或减少使用可卡因与内皮素-1分泌降低独立有关。随访中完全停用可卡因者与继续使用者的斑块进展率分别为7.4/100人年与23.1/100人年。然而,在这两个组之间发病率的差异并没有显著差异(P = 0.30)。

研究结果表明,停用或减少使用可卡因与内皮素-1分泌降低有关,这可能减少可卡因长期使用者的内皮损伤并改善其心血管预后。但需进一步研究内皮素-1能否作为停用或少用可卡因的标志物。

原始出处

Lai H1, Stitzer M, Treisman G, Moore R, Brinker J, Gerstenblith G, Kickler TS, Li J, Chen S, Fishman E, Lai S.Cocaine Abstinence and Reduced Use Associated With Lowered Marker of Endothelial Dysfunction in African Americans: A Preliminary Study.J Addict Med. 2015 Jul 7.

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    2016-04-22 gwc392
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    2015-09-07 jeanqiuqiu
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近日,一项刊登于国际杂志Journal of Neuroscience上的研究论文中,来自华盛顿州立大学的研究人员通过研究发现了大脑中的一种新型机制,其在个体大脑药物成瘾记忆中扮演着重要的角色,该研究发现或为开发新型靶向疗法来改变或消除这种机制从而使得降低个体对药物成瘾的强迫性提供了一定的帮助和希望。研究者Barbara Sorg表示,关闭这种机制或许可以逐步减少个体情感上的影响或情绪记忆的内容,

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