Risk of epilepsy in opposite-sex and same-sex twins: a twin cohort study
نویسندگان
چکیده
منابع مشابه
Academic performance of opposite-sex and same-sex twins in adolescence: A Danish national cohort study.
Testosterone is an important hormone in the sexual differentiation of the brain, contributing to differences in cognitive abilities between males and females. For instance, studies in clinical populations such as females with congenital adrenal hyperplasia (CAH) who are exposed to high levels of androgens in utero support arguments for prenatal testosterone effects on characteristics such as vi...
متن کاملRisk of Sex-Specific Cancers in Opposite-Sex and Same-Sex Twins in Denmark and Sweden.
BACKGROUND Increasing evidence shows that some cancers originate in utero. It is hypothesized that elevated exposure to some steroid hormones might increase cancer risk and that hormone transfer between twin fetuses could result in different prenatal exposure to testosterone. METHODS This large-scale prospective twin study compared opposite-sex (OS) and same-sex (SS) twins to test the impact ...
متن کاملOpposite-Sex Twins and Adolescent Same- Sex Attraction
The etiology of human same-sex romantic attraction is generally framed in terms of (1) social influences, (2) genetic influences, or (3) hormonal influences. In this article, we show that adolescent males who are opposite-sex twins are twice as likely as expected to report same-sex attraction; and that the pattern of concordance (similarity across pairs) of same-sex preference for sibling pairs...
متن کاملBirth weight in opposite sex twins as compared to same sex dizygotic twins.
The question addressed in the present report is whether the large birth weight differences in dizygotic twin pairs of opposite sex (DZos), especially in 'male first' couples--observed by Blickstein and Weissman (Blickstein I, Weissman A. Birth weight discordancy in male-first and female-first pairs of unlike-sexed twins. Am J Obstet Gynecol 1990;162:661-663) and replicated in the present study-...
متن کاملDimensions of psychological masculinity-femininity in adult twins from opposite-sex and same-sex pairs.
Male and female twins with opposite-sex co-twins were compared to twins with same-sex co-twins on three independent dimensions of masculinity-femininity, in order to examine the hypothesis that the hormones of the co-twin might have an effect on prenatal masculinization. The analysis was originally carried out for an older cohort from the Australian Twin Registry (2647 pairs, mean age 41.2), an...
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ژورنال
عنوان ژورنال: Biology of Sex Differences
سال: 2018
ISSN: 2042-6410
DOI: 10.1186/s13293-018-0179-5