Gaist D, Bathum L, Skytthe A, Jensen T K, McGue M, Vaupel J W, Christensen K
The Danish Twin Registry, University of Southern Denmark, Odense University.
Epidemiology. 2000 May;11(3):340-3. doi: 10.1097/00001648-200005000-00020.
Sharing of intrauterine environment in twins of opposite sex has been hypothesized to result in masculinization of the female twin. We tested this hypothesis by comparing strength (maximum hand-grip pressure) and various anthropometric measures in a newly established survey panel comprising 4,314 middle-aged twins identified through a Danish population-based twin registry. Sex- and zygosity-specific mean values of handgrip strength, height, weight, body mass index, and waist circumference were highly comparable between fraternal twins of opposite sex and fraternal twins of same sex. Our results provide no support for the hypothesis of masculinization of female twins from opposite sex twin pairs.
异性双胞胎共享子宫内环境被认为会导致女性双胞胎男性化。我们通过在一个新建立的调查小组中比较力量（最大握力）和各种人体测量指标来检验这一假设，该小组由通过丹麦基于人群的双胞胎登记处识别出的4314名中年双胞胎组成。异性异卵双胞胎和同性异卵双胞胎之间，握力、身高、体重、体重指数和腰围的性别及合子类型特异性平均值高度可比。我们的结果不支持异性双胞胎对中女性双胞胎男性化这一假设。
