揭秘催产素与暴饮暴食的关联

2016-07-16 佚名 生物谷

来自约克大学和成瘾和精神健康中心的科学家们通过研究首次揭示了,催产素受体(OXTR)基因的突变引发某些个体吃得过多或暴饮暴食的分子机制,文章中研究者揭示了催产素受体如何影响个体的食欲、偏食、食物摄入及和大脑奖惩机制相关的人群风险特质,县官研究已于近日发表于2016年举办的今年的摄食行为研究学会年会上了。催产素是大脑中产生的一种进化上的古老分子,钙分子可以通过触发催产素受体来通过全身发挥作用,催产素

来自约克大学和成瘾和精神健康中心的科学家们通过研究首次揭示了,催产素受体(OXTR)基因的突变引发某些个体吃得过多或暴饮暴食的分子机制,文章中研究者揭示了催产素受体如何影响个体的食欲、偏食、食物摄入及和大脑奖惩机制相关的人群风险特质,研究已于近日发表于2016年举办的今年的摄食行为研究学会年会上了。

催产素是大脑中产生的一种进化上的古老分子,钙分子可以通过触发催产素受体来通过全身发挥作用,催产素可以影响许多包括用于管理压力的生存行为,研究者Caroline Davis表示,比如催产素可以增强个体的亲社会行为及其相关行为,从另一方面来讲,催产素水平的增加可以使得食欲减退,尤其是摄入甜味碳水化合物水平的降低。

在过去10年里,研究者Davis及其同时对年龄在27至50岁的大量参与者进行了相关研究,这些研究对象有着比较广泛的体重情况,同时还包含有大量的贪食习惯;在其它测量值中,研究者对每一位参与者机体的血液样本进行收集来分析个体机体的DNA分子特性情况。

对DNA的分子可以帮助揭开催产素和与暴饮暴食行为之间的新型关联,研究者重点对DNA的7个位点进行研究,这些位点用于制造催产素受体的化学指令在不同个体间并不相同,同时研究者预测这些单核苷酸多态性(SNPs)和个体的心理特质直接相关,随后研究人员收集了参与者的相关调查问卷,调查问卷中包括如下信息:个体的回报敏感性(reward sensitivity)、惩罚敏感性、糖类/脂肪的偏食情况、过量饮食的习惯以及催产素受体的遗传信息等。

研究者检测了相关的预测信息,即和心理学风险因子相关的SNPs信息,他们发现SNPs和过量饮食行为直接相关,而且三种SNPs和个体的心理特质存在明显关联,其它SNP则和个体暴饮暴食直接相关,本文研究结果揭示了调节行为的关键基因所扮演的角色,同时也阐明了催产素在暴饮暴食发生过程中的重要性。

原始出处:

Oxytocin's role in binge eating

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    2016-08-28 ylzr123

    深度好文,值得学习,赞!

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    2016-08-27 ylzr123

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    2016-08-27 ylzr123

    好文,值得学习,赞一个。

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    2016-07-18 zhanfl

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背景:自闭症是一组复杂的大脑发育障碍,其特点是社交障碍和刻板重复行为。据估计,在68名儿童中,就有1个自闭症。然而对于自闭症的干预是有限的。一些精神药物,如利培酮,似乎可以缓解行为问题,但他们往往与不良事件相关。也有证据证明一些药物治疗对改善核心社会诊断功能是有效的。行为干预可以显著改善障碍,但是往往需要耗费大量的时间和金钱。目前,有报道称合成催产素在社会认知和行为上可以起到重要的作用,由此也许有

Neurosci Biobehav Rev:催产素与酒精有众多相似之处

研究显示,由新妈妈、处在恋爱中的人、甚至是宠物狗的主人身上分泌的一种荷尔蒙能起到许多与酒精类似的效果。催产素,又名“爱的荷尔蒙”,能够令人产生信任感,变得更加慷慨——但就像喝酒一样,它也能提高人的攻击性。据英国研究者称,催产素和酒精之间存在的相似之处“多得令人吃惊”。女性在怀孕期间分泌的催产素有利于增强她们与婴儿之间的联系。做爱时也会产生催产素,因此它有个绰号叫“抱抱荷尔蒙”。其它出于爱意的举动,

坐月子陋习之:月子米酒

许多人希望我能说一下坐月子的陋习,不能洗澡,洗头,不能吹风,不能用空调,不能吃生冷食物,不能沾凉水,直至不能出门这些陋习已经被许多产科医生和科普作者批评过多次,我这里就不再说了。民间坐月子的习俗中有“米酒下奶的说法”,在一些母婴保健网站和论坛中也广泛流传这样的说法。在我国的很多地方,比如江浙,台湾和两广还有“月子酒”的习俗,甚至把米酒和黄酒让产妇当水来喝。其实,不只是中国,在世界其他很多地方也有给

Frontiers in Genetics:催产素受体,诊断产后抑郁症将靠你

产后抑郁症(PPD)是一种女性生完孩子之后出现的抑郁症类型。据2013年的一项调查显示,有1/7的女性生完孩子后会出现抑郁症,超过22%的产妇在某一时段会存在抑郁情绪。产妇的PPD症状不仅表现为自身的抑郁情绪,也包括对孩子的悲观和失望,如:出现情感麻木且认为自己与孩子无关;过分忧虑孩子会不幸福;时刻担心自己会伤害孩子;对不能照顾孩子怀有内疚感;既往的研究已经证明催产素具有帮助产妇顺利生产、母婴联合