Vivianni Veloso, Ana Catarina Miranda, Cibele Nazaré Câmara Rodrigues, Nelson Corrêa Medrado, Maria Cecília Silva Nunes, Mauro Dias Silva Júnior, Marie Odile Monier Chelini
{"title":"异性恋妇女和男女同性恋妇女的睾酮浓度和 2D:4D 数字比率","authors":"Vivianni Veloso, Ana Catarina Miranda, Cibele Nazaré Câmara Rodrigues, Nelson Corrêa Medrado, Maria Cecília Silva Nunes, Mauro Dias Silva Júnior, Marie Odile Monier Chelini","doi":"10.1007/s40750-024-00248-z","DOIUrl":null,"url":null,"abstract":"<div><h3>Objective</h3><p>Intrauterine exposure to testosterone (T<sub>intrauterine</sub>) can permanently organize the brain. A putative marker of this endocrine exposure is the 2D:4D finger-digit ratio. In contrast to early prenatal androgen, testosterone concentrations in adulthood (T<sub>adult</sub>) are purported to have transient activational effects. Lesbian women typically show lower 2D:4D ratios (indicative of greater T<sub>intrauterine</sub>) and higher T<sub>adult</sub> levels compared to heterosexual women. However, few studies, with mixed results, have assessed differences in T<sub>adult</sub> and T<sub>intrauterine</sub> between heterosexual, femme, and butch lesbians (respectively, feminized and masculinized styles). This study aimed to compare the 2D:4D ratio and T<sub>adult</sub> levels in saliva between masculine, feminine lesbian, and heterosexual women.</p><h3>Results</h3><p>T<sub>adult</sub> levels were higher in masculine compared to feminine lesbians and heterosexual women. However, there were no differences between the groups regarding the 2D:4D ratio, nor did it show a correlation between T<sub>adult</sub> levels and the 2D:4D ratio.</p><h3>Conclusion</h3><p>Our study suggests the existence of biological differences at the activational level between masculine and feminine lesbians. These results do not exclude the possibility of prenatal influence on female homosexuality. We recommend further studies to address this question while circumventing the limitations of the present study.</p></div>","PeriodicalId":1,"journal":{"name":"Accounts of Chemical Research","volume":null,"pages":null},"PeriodicalIF":16.4000,"publicationDate":"2024-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Testosterone Concentrations and 2D:4D Digit Ratio in Heterosexual and Masculine and Feminine Lesbian Women\",\"authors\":\"Vivianni Veloso, Ana Catarina Miranda, Cibele Nazaré Câmara Rodrigues, Nelson Corrêa Medrado, Maria Cecília Silva Nunes, Mauro Dias Silva Júnior, Marie Odile Monier Chelini\",\"doi\":\"10.1007/s40750-024-00248-z\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><h3>Objective</h3><p>Intrauterine exposure to testosterone (T<sub>intrauterine</sub>) can permanently organize the brain. A putative marker of this endocrine exposure is the 2D:4D finger-digit ratio. In contrast to early prenatal androgen, testosterone concentrations in adulthood (T<sub>adult</sub>) are purported to have transient activational effects. Lesbian women typically show lower 2D:4D ratios (indicative of greater T<sub>intrauterine</sub>) and higher T<sub>adult</sub> levels compared to heterosexual women. However, few studies, with mixed results, have assessed differences in T<sub>adult</sub> and T<sub>intrauterine</sub> between heterosexual, femme, and butch lesbians (respectively, feminized and masculinized styles). This study aimed to compare the 2D:4D ratio and T<sub>adult</sub> levels in saliva between masculine, feminine lesbian, and heterosexual women.</p><h3>Results</h3><p>T<sub>adult</sub> levels were higher in masculine compared to feminine lesbians and heterosexual women. However, there were no differences between the groups regarding the 2D:4D ratio, nor did it show a correlation between T<sub>adult</sub> levels and the 2D:4D ratio.</p><h3>Conclusion</h3><p>Our study suggests the existence of biological differences at the activational level between masculine and feminine lesbians. These results do not exclude the possibility of prenatal influence on female homosexuality. 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Testosterone Concentrations and 2D:4D Digit Ratio in Heterosexual and Masculine and Feminine Lesbian Women
Objective
Intrauterine exposure to testosterone (Tintrauterine) can permanently organize the brain. A putative marker of this endocrine exposure is the 2D:4D finger-digit ratio. In contrast to early prenatal androgen, testosterone concentrations in adulthood (Tadult) are purported to have transient activational effects. Lesbian women typically show lower 2D:4D ratios (indicative of greater Tintrauterine) and higher Tadult levels compared to heterosexual women. However, few studies, with mixed results, have assessed differences in Tadult and Tintrauterine between heterosexual, femme, and butch lesbians (respectively, feminized and masculinized styles). This study aimed to compare the 2D:4D ratio and Tadult levels in saliva between masculine, feminine lesbian, and heterosexual women.
Results
Tadult levels were higher in masculine compared to feminine lesbians and heterosexual women. However, there were no differences between the groups regarding the 2D:4D ratio, nor did it show a correlation between Tadult levels and the 2D:4D ratio.
Conclusion
Our study suggests the existence of biological differences at the activational level between masculine and feminine lesbians. These results do not exclude the possibility of prenatal influence on female homosexuality. We recommend further studies to address this question while circumventing the limitations of the present study.
期刊介绍：
Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance.
Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.
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