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ATVB:睾酮转化成雌激素和雄激素衍生物预防男性皮肤缺血坏死

2017-04-16 MedSci MedSci原创

慢性不愈合伤是一个重大医疗问题,与疾病发病率和死亡率相关,因此迫切需要新的治疗策略。考虑性别差异是这一领域迈向个体/精准医学的第一步。缺血削弱受伤的伤口愈合,之前研究证明17β-雌二醇显着防止雌性小鼠缺血诱导的皮瓣坏死。然而,雄性小鼠中睾丸激素的这一领域作用尚未报道。本研究我们使用皮瓣缺血模型研究了雄性小鼠中类固醇激素的作用。去势的雄性小鼠缺血后发生皮肤坏死,而给予睾酮治疗同等保护完整或去势雄性小

慢性不愈合伤是一个重大医疗问题,与疾病发病率和死亡率相关,因此迫切需要新的治疗策略。考虑性别差异是这一领域迈向个体/精准医学的第一步。缺血削弱受伤的伤口愈合,之前研究证明17β-雌二醇显着防止雌性小鼠缺血诱导的皮瓣坏死。然而,雄性小鼠中睾丸激素的这一领域作用尚未报道。本研究我们使用皮瓣缺血模型研究了雄性小鼠中类固醇激素的作用。

去势的雄性小鼠缺血后发生皮肤坏死,而给予睾酮治疗同等保护完整或去势雄性小鼠。睾酮可以(1)芳构化为17β-雌二醇后激活雌激素受体,或(2)还原成二氢睾酮,其是激活雄激素受体的非可变性雄激素。本研究发现二氢睾酮通过促进皮肤血运重建来保护阉割的WT小鼠,使用流动介导的外向重塑互补模型证明这一过程可能是通过直接作用在阻力血管。给予阉割的雄性小鼠17β-雌二醇治疗可以激活雌激素受体-α增加皮肤血运重建和皮肤存活,显着保护它们免于缺血坏死。值得注意的是,相比于二氢睾酮,17β-雌二醇改善皮肤存活的效率较高。

睾酮为男性提供强有力的保护,防止皮肤坏死,并通过其雌激素和雄激素衍生物起作用,对皮肤存活和血运重建具有保护作用。

原始出处:Chenu C, Adlanmerini M, et al. Testosterone Prevents Cutaneous Ischemia and Necrosis in Males Through Complementary Estrogenic and Androgenic Actions.Arterioscler Thromb Vasc Biol. 2017 Mar 30. pii: ATVBAHA.117.309219.

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    2017-11-03 gongliu
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    2017-04-17 虈亣靌

    感谢分享,学习了

    0

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    2017-04-17 millore

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