J Nippon Med Sch:酒精脱氢酶3对小鼠酒精性骨质疏松症的影响

2018-12-23 MedSci MedSci原创

酒精脱氢酶3(ADH3)不仅在酒精代谢中起主要作用,而且在作为S-亚硝基谷胱甘肽还原酶(GSNOR)的一氧化氮代谢中起主要作用。ADH3/GSNOR通过过氧化物酶体增殖物激活受体γ的脱亚硝基化调节脂肪生成和成骨。本研究旨在探究ADH3对慢性饮酒(CAC)中酒精性骨质疏松症发展的影响。将具有不同ADH基因型[野生型(WT)和Adh3-/- ]的9周龄雄性小鼠施用10%乙醇溶液12个月。通过组织化学染

酒精脱氢酶3(ADH3)不仅在酒精代谢中起主要作用,而且在作为S-亚硝基谷胱甘肽还原酶(GSNOR)的一氧化氮代谢中起主要作用。ADH3/GSNOR通过过氧化物酶体增殖物激活受体γ的脱亚硝基化调节脂肪生成和成骨。本研究旨在探究ADH3对慢性饮酒(CAC)中酒精性骨质疏松症发展的影响。

将具有不同ADH基因型[野生型(WT)和Adh3-/- ]的9周龄雄性小鼠施用10%乙醇溶液12个月。通过组织化学染色和基于计算机断层扫描的骨密度测定法评估股骨。通过逆转录-定量聚合酶链反应在WT小鼠中评估ADH3的mRNA水平。

结果显示,与WT对照小鼠相比,Adh3-/-对照小鼠显示出成骨细胞和破骨细胞的活性增加和骨量减少。CAC在成骨细胞和破骨细胞活性方面没有显示出明显变化,但是尽管ADH3的mRNA水平增加,但在WT小鼠中观察到骨质量减少。相反,在CAC后,Adh3-/-对照小鼠的骨量没有减少。

综上所述,该研究结果表明,Adh3-/-对照小鼠表现出高的骨质疏松症,因为破骨细胞生成主导成骨细胞生成;然而,CAC后骨吸收没有增强。相比之下,CAC导致WT小鼠的酒精性骨质疏松症,伴随着ADH3的mRNA水平增加。因此,ADH3可以预防正常ADH基因型中的骨质疏松症发展在不摄入酒精的情况下。然而,ADH3通过参与酒精代谢,增加代谢毒性和降低GSNO还原活性,促进了CAC下酒精性骨质疏松症的发展。

原始出处:

Okuda T, Naruo M, et al., The Contribution of Alcohol Dehydrogenase 3 to the Development of Alcoholic Osteoporosis in Mice. J Nippon Med Sch. 2018;85(6):322-329. doi: 10.1272/jnms.JNMS.2018_85-52.

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  2. [GetPortalCommentsPageByObjectIdResponse(id=1673455, encodeId=9a4f16e345512, content=<a href='/topic/show?id=757b954e922' target=_blank style='color:#2F92EE;'>#酒精性#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=25, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=95479, encryptionId=757b954e922, topicName=酒精性)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=398f26933958, createdName=huiwelcome, createdTime=Fri Jun 28 11:10:00 CST 2019, time=2019-06-28, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1592521, encodeId=ce621592521f0, content=<a href='/topic/show?id=6dc2101853ed' target=_blank style='color:#2F92EE;'>#骨质#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=25, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=101853, encryptionId=6dc2101853ed, topicName=骨质)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=e1d018108513, createdName=Eleven17, createdTime=Tue Dec 25 05:10:00 CST 2018, time=2018-12-25, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1609394, encodeId=3c7d160939444, content=<a href='/topic/show?id=eb6b1145939' target=_blank style='color:#2F92EE;'>#Med#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=20, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=11459, encryptionId=eb6b1145939, topicName=Med)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=4c37265, createdName=hb2008ye, createdTime=Tue Dec 25 05:10:00 CST 2018, time=2018-12-25, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=356198, encodeId=492c35619853, content=好文,值得点赞!认真学习了,把经验应用于实践,为患者解除病痛。, beContent=null, objectType=article, channel=null, level=null, likeNumber=62, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/NUyjXTCJjo7s7ZCKOmmbBTD6nE7gcd5OZpvyGEzkxBP3S275k5ZJVrsPkotZhBglRHM9rKvcj1OgkssqhcnoPw8zIaMZTF8c/0, createdBy=4c441942088, createdName=ylzr123, createdTime=Sun Dec 23 14:23:54 CST 2018, time=2018-12-23, status=1, ipAttribution=)]
    2018-12-25 Eleven17
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    2018-12-25 hb2008ye
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    2018-12-23 ylzr123

    好文,值得点赞!认真学习了,把经验应用于实践,为患者解除病痛。

    0