雌激素替代疗法可缓解厌食症女孩的体重焦虑症状

2013-06-19 秀荣 译 医学论坛网

   Madhusmita Misra博士        旧金山:据麻省总医院和波士顿哈佛医学院研究者的一项小型、随机研究报道,如果患厌食症的青春期少女的雌激素恢复到正常水平,他们对体重增加的焦虑就会减少。   如果再有研究对此研究结果加以确认,此研究结果就是一项重大发现,因为对体重增加的焦虑会破坏神经性厌食症的治疗。“生理性雌激素替代疗法是减少焦虑和

  Madhusmita Misra

Madhusmita Misra博士

       旧金山:据麻省总医院和波士顿哈佛医学院研究者的一项小型、随机研究报道,如果患厌食症的青春期少女的雌激素恢复到正常水平,他们对体重增加的焦虑就会减少。

  如果再有研究对此研究结果加以确认,此研究结果就是一项重大发现,因为对体重增加的焦虑会破坏神经性厌食症的治疗。“生理性雌激素替代疗法是减少焦虑和提高治疗成功机会的一个潜在的策略。”首席研究员Madhusmita Misra博士说。Madhusmita Misra博士是波士顿哈佛医学院的一名儿科内分泌学家和儿科学副教授。

  其研究组对年龄在13-18岁之间的女性患者随机分别给予一周两次经皮雌二醇100-mcg和一月10天循环孕酮治疗或安慰剂补丁和药片。 

      18个月后经儿童状态-特质焦虑量表评估,研究组20位女孩的特质焦虑(遭受焦虑的倾向)与安慰剂组的17位女孩相比显著下降(–3.05 vs. 2.07, P = .01);雌激素水平增加越大的患者,其特质焦虑评分下降的就越多(P = .001)。

  未出现月经的女孩的基线雌激素水平远远低于正常水平;本研究中对这些女孩进行了干预,以恢复其雌激素生理水平。这些女孩都达到了DSM-IV 厌食症标准,骨龄都至少是15岁,都接受了治疗。

  两组间在以下各方面不存在显著的基线差异:身体质量指数、治疗精神病用药时间、年龄、问卷评分和包括18个月期间的体重增加在内的其它因素等。Misra博士说:“我们进行了很多各种各样的调整以确保我们所研究的这个关系不受其它任何混杂因素的干扰。” 

  饮食障碍量表II问卷和身体形态问卷(BSQ-34)的评估显示,雌激素替代疗法不会直接对患者的饮食态度和身体体型认知产生影响,然而,该疗法确实能防止患者身体不满意度和状态性焦虑的增加——与体重增加相关的一种短暂的焦虑状态,其发生在安慰剂组,并在神经性厌食症的治疗中较为常见。

  “我们之前的一项研究已经表明生理性雌激素替代疗法在促进厌食症青春期少女的骨增长比率正常化方面发挥着非常重要的作用(J. Bone. Miner. Res. 2011;26:2430-8),这看起来又是一项额外的有利发现,其有可能会对雌激素分泌不足的少女早期应用雌激素替代疗法治疗神经性食欲缺乏症造成影响。但是,还需要进行更多的研究对这些发现进行验证,目前就建议使用雌激素替代疗法治疗焦虑问题还为时尚早,” Misra博士说。

  研究发现,研究组女孩的雌二醇水平平均增加了117.0 pg/mL而安慰剂组平均增加了22.4 pg/mL。研究者称他们的研究无任何需公开的利益冲突。美国国立卫生研究院对该研究提供了资助。

Estrogen replacement eases weight-gain anxiety in girls with anorexia
SAN FRANCISCO – Teenage girls with anorexia have less anxiety about gaining weight if their estrogen levels have been returned to normal, according to a small, randomized study, researchers from Massachusetts General Hospital and Harvard Medical School in Boston reported.
If confirmed in additional studies, it is an important finding, because anxiety about weight gain can sabotage anorexia nervosa treatment. "Physiological estrogen replacement is a potential strategy to reduce ... anxiety and improve chances of successful treatment," said lead investigator Dr. Madhusmita Misra, a pediatric endocrinologist and associate professor of pediatrics at Harvard Medical School in Boston....

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