Inter-annual repeatability and age-dependent changes in plasma testosterone levels in a longitudinally monitored free-living passerine bird.
Sign Up to like & getrecommendations! Published in 2021 at "Oecologia"
DOI: 10.1007/s00442-021-05077-5
Abstract: While seasonal trends in testosterone levels are known from cross-cohort studies, data on testosterone inter-annual individual repeatability in wild birds are rare. Also, our understanding of hormonal age-dependent changes in testosterone levels is limited. We… read more here.
Keywords: inter annual; age; repeatability; testosterone ... See more keywords
Associations between plasma testosterone levels and season, nutritional status, age, and body size in free-ranging male Asian black bears (Ursus thibetanus) in central Honshu, Japan.
Sign Up to like & getrecommendations! Published in 2021 at "General and comparative endocrinology"
DOI: 10.1016/j.ygcen.2021.113794
Abstract: Testosterone is an important regulator of male reproduction in terms of spermatogenesis and physiological changes in the accessory reproductive organs. Despite the important role of the testosterone level in male reproduction, testosterone levels vary among… read more here.
Keywords: free ranging; testosterone; testosterone levels; plasma testosterone ... See more keywords
Kiss1-dependent and independent release of luteinizing hormone and testosterone in perinatal male rats.
Sign Up to like & getrecommendations! Published in 2022 at "Endocrine journal"
DOI: 10.1507/endocrj.ej21-0620
Abstract: Prenatal and postnatal biphasic increases in plasma testosterone levels derived from perinatal testes are considered critical for defeminizing/masculinizing the brain mechanism that regulates sexual behavior in male rats. Hypothalamic kisspeptin neurons are indispensable for stimulating… read more here.
Keywords: testosterone levels; plasma testosterone; male rats; release ... See more keywords
Plasma Testosterone Levels Increase with Expression of Male Ornaments During Mating, but not Incubation, in Japanese Barn Swallows
Sign Up to like & getrecommendations! Published in 2017 at "Zoological Science"
DOI: 10.2108/zs160187
Abstract: Recent experimental studies involving the manipulation of sexual traits have demonstrated that sexual trait expression feeds back to testosterone levels, perhaps via social interactions, reinforcing the linkage between sexual trait expression and testosterone levels during… read more here.
Keywords: incubation; period; testosterone; expression ... See more keywords
Testing the extreme male hypothesis in the valproate mouse model; sex-specific effects on plasma testosterone levels and tyrosine hydroxylase expression in the anteroventral periventricular nucleus, but not on parental behavior
Sign Up to like & getrecommendations! Published in 2023 at "Frontiers in Behavioral Neuroscience"
DOI: 10.3389/fnbeh.2023.1107226
Abstract: Introduction Autism is a neurodevelopmental disorder with a strong male bias in prevalence and severity. The extreme male hypothesis proposed that autism is a manifestation of extreme male traits as evidenced by increased masculine behaviors,… read more here.
Keywords: plasma testosterone; expression; parental behavior; male hypothesis ... See more keywords