目的分析重庆市大学生指长比与多种男性生殖表型的关联。方法对重庆市大学生男性生殖健康队列(male reproductive health in Chongqing college students,MARHCS)的569名志愿者测量左手食指和无名指的比值(“食无比”),同时测量肛殖距(...目的分析重庆市大学生指长比与多种男性生殖表型的关联。方法对重庆市大学生男性生殖健康队列(male reproductive health in Chongqing college students,MARHCS)的569名志愿者测量左手食指和无名指的比值(“食无比”),同时测量肛殖距(阴囊后基部至肛门中心)、睾丸纵径、睾丸体积、精液参数和性激素水平。结果志愿者食无比中位数为0.97,比值≤1者占86.29%。校正年龄、体质量指数、饮酒、吸烟、禁欲天数后,食无比每增加0.1,精液体积相应增加12.5%(95%CI:0.7%~37.3%,P=0.033),精子总数增加87.1%(95%CI:1.3%~819.9%,P=0.038)。食无比与肛殖距单因素分析呈弱相关(r=0.136,P=0.001),校正混杂因素后,食无比每增加0.1,肛殖距相应增加2.5%(95%CI:0.3%~5.2%,P=0.023)。与食无比≤1者相比,比值>1者的卵泡刺激素降低10.3%(95%CI:-17.6%~-2.5%,P=0.012)。但上述关联经多重检验校正后均无统计学意义。结论在重庆市健康男性大学生群体中,食无比与精液参数和性激素等成年后生殖表型无显著关联。展开更多
The prenatal hormonal environment plays an important role in organizing sex differences in the morphology, physiology and behavior of humans as well as other vertebrates. Currently, all related research on rodents has...The prenatal hormonal environment plays an important role in organizing sex differences in the morphology, physiology and behavior of humans as well as other vertebrates. Currently, all related research on rodents has been focused on Myomorpha. This study presents data on sex differences in the anogenital distance （AGD） and the ratio of the second to the fourth digit length （2D：4D） from 44 wild David＇s rock squirrels Sciurotamias davidianus captured from the Qinling Mountains, China. This was the first study of a species from Sciuromorpha. The AGD as well as body mass are sexually dimorphic. There are no sex differences or lateral asymmetry in 2D：4D. Significant correlation was not found between AGD and 2D：4D for any paw. The findings indicate that 2D：4D may not be fixed or influenced by the prenatal steroidal environment in David＇s rock squirrels [Current Zoology 60 （2）： 180-185, 2014].展开更多
文摘目的分析重庆市大学生指长比与多种男性生殖表型的关联。方法对重庆市大学生男性生殖健康队列(male reproductive health in Chongqing college students,MARHCS)的569名志愿者测量左手食指和无名指的比值(“食无比”),同时测量肛殖距(阴囊后基部至肛门中心)、睾丸纵径、睾丸体积、精液参数和性激素水平。结果志愿者食无比中位数为0.97,比值≤1者占86.29%。校正年龄、体质量指数、饮酒、吸烟、禁欲天数后,食无比每增加0.1,精液体积相应增加12.5%(95%CI:0.7%~37.3%,P=0.033),精子总数增加87.1%(95%CI:1.3%~819.9%,P=0.038)。食无比与肛殖距单因素分析呈弱相关(r=0.136,P=0.001),校正混杂因素后,食无比每增加0.1,肛殖距相应增加2.5%(95%CI:0.3%~5.2%,P=0.023)。与食无比≤1者相比,比值>1者的卵泡刺激素降低10.3%(95%CI:-17.6%~-2.5%,P=0.012)。但上述关联经多重检验校正后均无统计学意义。结论在重庆市健康男性大学生群体中,食无比与精液参数和性激素等成年后生殖表型无显著关联。
文摘The prenatal hormonal environment plays an important role in organizing sex differences in the morphology, physiology and behavior of humans as well as other vertebrates. Currently, all related research on rodents has been focused on Myomorpha. This study presents data on sex differences in the anogenital distance （AGD） and the ratio of the second to the fourth digit length （2D：4D） from 44 wild David＇s rock squirrels Sciurotamias davidianus captured from the Qinling Mountains, China. This was the first study of a species from Sciuromorpha. The AGD as well as body mass are sexually dimorphic. There are no sex differences or lateral asymmetry in 2D：4D. Significant correlation was not found between AGD and 2D：4D for any paw. The findings indicate that 2D：4D may not be fixed or influenced by the prenatal steroidal environment in David＇s rock squirrels [Current Zoology 60 （2）： 180-185, 2014].
