Hum Reprod:长期外源性睾酮注射不会使变性者出现多囊卵巢!

2017-07-27 顾歆纯 环球医学资讯

2017年5月,发表在《Hum Reprod》的一项由荷兰科学家进行的研究,通过经阴道(3D)超声(TVU)测定,发现在女性-男性变性者(FtMs)中,长期外源性睾酮注射不会导致多囊卵巢形态(PCOM)。

2017年5月,发表在《Hum Reprod》的一项由荷兰科学家进行的研究,通过经阴道(3D)超声(TVU)测定,发现在女性-男性变性者(FtMs)中,长期外源性睾酮注射不会导致多囊卵巢形态(PCOM)。

研究问题:通过(3D)TVU测定FtMs中长期的外源性睾酮注射是否导致PCOM。

总结答案:通过(3D)TVU确定,FtMs长期外源性睾酮注射不会导致PCOM。

已知:雄激素对多囊卵巢综合征(PCOS)的病理生理学作用尚不清楚。从动物研究中,卵巢内雄激素已经表明干扰卵泡生成,通过前闭锁作用于生长的卵泡。外源性雄激素是否诱导人类PCOM仍存在争议。过去的组织形态学研究表明,FtMs中的雄激素注射可能导致PCO样变化。然而,超声形态学是一个确立的PCOS的标准,缺乏长期雄激素暴露后卵巢的TVU数据。

研究设计、大小、持续时间:2014~2015年在一个学术机构中进行前瞻性、观察性、病例对照研究,纳入56例FtMs和80例对照。

参与者/材料、地点、方法:研究人群由长期睾酮治疗(作为他们的交叉性别激素治疗的一部分)的成人FtMs组成,并安排变性手术(双侧输卵管卵巢切除术)。手术前,在麻醉下对卵巢进行TVU测量(3D经阴道探头3~9 MHz)。对照组由进行了相同TVU测量和分析的一般人群中的女性组成。窦卵泡计数(AFC)(3D)和卵巢体积(3D)注射专业软件计算。PCOM被定义为至少一个卵巢中AFC≥12个卵泡(2~10mm)。

主要结果和作用:FtMs组中PCOM的患病率相比于对照组无显著差异,经(3D)TVU确定:32.1%(17/53)vs 30.7%(23/75),P=0.87。

局限性、谨慎的原因:FtMs的睾酮水平是超生理的,而且可能比不上PCOS女性患者的睾酮水平。然而,研究人员应用了一个独特的、伦理可接受的方式来探索雄激素对人类卵巢的影响。

结果的广泛应用:首个探索性研究表明,经TVU确定,成年女性长期外源性睾酮注射或不引发PCOM。

研究资助/竞争利益:

试验注册号:该试验在Dutch Trial Register(www.trialregister.nl)注册,注册号:NTR4784。

原始出处

Caanen MR1, Schouten NE1, Kuijper EAM1, et al.Effects of long-term exogenous testosterone administration on ovarian morphology, determined by transvaginal (3D) ultrasound in female-to-male transsexuals.Hum Reprod. 2017 May 13:1-8. doi: 10.1093/humrep/dex098. [Epub ahead of print]

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    2018-01-22 zhangph
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    2017-07-29 huangdf
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    2017-07-29 sunylz