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SCI ADV:酶促方法可有效帮助戒烟

2018-10-20 海北 MedSci原创

烟草使用障碍是全世界疾病和可预防死亡的主要原因,但目前基于药效学的药物的疗效并不理想。

烟草使用障碍是全世界疾病和可预防死亡的主要原因,但目前基于药效学的药物的疗效并不理想。研究人员已经使用疫苗测试了用于防止尼古丁到达大脑的新型药代动力学方法,但是这些努力都失败了,因为现有抗体的亲和力和浓度不足以完全阻止尼古丁到达大脑。

最近,研究人员提供了临床前证据,证明酶法可逆转尼古丁依赖,减少强迫性尼古丁摄入,并防止有尼古丁依赖史的大鼠的复发。

慢性给予NicA2-J1,一种最初从恶臭假单胞菌S16中分离的工程化尼古丁降解酶,完全阻止尼古丁到达大脑,并在尼古丁依赖大鼠里面可以逆转戒断反应,痛觉过敏和易怒等表型。

NicA2-J1也减少了类似强迫性的尼古丁摄入量,尽管偶然的足部冲击会产生不良后果,但可以通过反应来反映,并且该药物可以预防尼古丁和应激(育亨宾)诱导的复发。

这些结果证明了酶疗法在晚期动物模型中治疗尼古丁成瘾的功效,并为开发用于人类戒烟的生物疗法提供了坚实的基础。


原始出处:

Marsida Kallupi et al. An enzymatic approach reverses nicotine dependence, decreases compulsive-like intake, and prevents relapse. SCIENCE ADVANCES, 2018; DOI: 10.1126/sciadv.aat4751


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    2018-10-20 医者仁心5538

    学习了

    0

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    2018-10-20 122b87b4m49(暂无昵称)

    学习了,谢谢

    0

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    2018-10-20 phoebeyan520

    学习了

    0

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    2018-10-20 flysky120

    希望能使更多人戒烟

    0

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    2018-10-20 lietome2

    感谢小编为我们准备了如此丰盛的精神大餐,同时也向作者致谢!认真学习了,点赞!

    0

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