医学 >>> 性科学 >>> 性医学 >>>
搜索结果: 151-165 共查到知识库 性医学相关记录2370条 . 查询时间(2.248 秒)
In 1997, the U.S. Food and Drug Administration endorsed the use of a combination estrogen and progestin oral contraceptive for emergency postcoital contraception.1 In 1998, the agency approved the fir...
Context: Although unintended pregnancy and sexually transmitted diseases (STDs) are considerable problems in the United States, private health insurance plans are inconsistent in their coverage of rep...
Context: HIV-positive men and women may have fertility desires and may intend to have children. The extent of these desires and intentions and how they may vary by individuals' social and demographic ...
Context: Over the past several years, there have been sharp increases in the prevalence of HIV and other sexually transmitted diseases (STDs) among young people in Russia. Very little is known about R...
Context: The federal government enacted the State Children's Health Insurance Program (CHIP) in 1997 to provide insurance coverage to uninsured, low-income children up to age 19. Individual states' de...
Little is known about the factors associated with the choice of female-controlled, over-the-counter barrier contraceptive methods among women and their male sexual partners. Methods: Predictors of...
Context: U.S. women receive contraceptive and reproductive health services from a wide range of publicly funded and private providers. Information on trends in and on patterns of service use can hel...
Context: Reproductive health education is a key strategy for promoting safe sexual behavior among teenagers. In the last decade, new initiatives in response to AIDS and growing interest in abstinence ...
Context: Whereas the female condom has been evaluated in many hypothetical acceptability or short-term use studies, there is little information about its suitability for the prevention of sexually tra...
A growing body of research is beginning to document associations between experiences of violence and the status of women's reproductive health. The data still are largely preliminary, but they suggest...
滋肾阴治“性早熟”      滋肾阴  “性早熟”        2009/9/14
 中医认为“七岁肾气盛,齿发长,二七而天癸至,任脉通,太冲脉盛,月事以时下。”即指儿童在十四五岁开始发育成人,出现各种明显的发育性征。但近年来由于各种因素的影响,很多孩子出现了提前发育的情况,即性早熟。
目的 探讨雌激素受体基因PvuⅡ、XbaⅠ和Codon325位点单核苷酸多态性的分布特征及连锁不平衡关系。方法 应用PCR-RFLP和荧光定量PCR法对678名江南男性雌激素受体基因单核苷酸多态性进行分析。研究对象主要来自江浙城市和湖南岳阳。结果 江浙、岳阳两组各位点基因型频率符合Hardy-Weinberg平衡。PvuⅡ和Codon325位点的基因型分布在两组间存在差异,P值分别为0.012和0...
Aims: This study aimed to evaluate sexual functioning among hemodialysis patients and their spouses. Materials and Methods: The study was conducted by the Consultation Liaison Psychiatry Division at t...
Testin又称睾丸素,最初是从小鼠睾丸支持细胞增菌培养基中鉴定的一种分泌性糖蛋白,可通过受体联合蛋白与细胞表面紧密结合。通过对睾丸素的研究,人们发现睾丸素 mRNA分布于全身大多数器官,尤其以睾丸和卵巢表达最高。研究表明睾丸素可能为一种抑癌基因,且当睾丸素基因表达降低或缺失时,致癌物诱导的胃癌发生率更高。
5α-还原酶有两种同工酶,可将睾酮转化成二氢睾酮(DHT)。5α-还原酶-2型同工酶的基因突变可导致此酶的活性降低从而造成男性的假两性畸形。这些患者是46XY染色体的个体,其血浆睾酮的水平为正常高值或升高而DHT水平降低,从而导致睾酮/DHT的比例升高,他们在出生时外生殖器的形态常介于男女两性之间,但中肾管分化正常。其前列腺小且发育不全,血浆中前列腺特异性抗原(PSA)的水平低或检测不到。动物实验...

中国研究生教育排行榜-

正在加载...

中国学术期刊排行榜-

正在加载...

世界大学科研机构排行榜-

正在加载...

中国大学排行榜-

正在加载...

人 物-

正在加载...

课 件-

正在加载...

视听资料-

正在加载...

研招资料 -

正在加载...

知识要闻-

正在加载...

国际动态-

正在加载...

会议中心-

正在加载...

学术指南-

正在加载...

学术站点-

正在加载...