Results 11 to 20 of about 186,632 (207)

Characterization of N6-Methyladenosine in Domesticated Yak Testes Before and After Sexual Maturity

open access: yesFrontiers in Cell and Developmental Biology, 2021
The potential regulatory role of N6-methyladenosine (m6A), the most prominent mRNA modification in eukaryotes, has recently been identified in mammals, plants, and yeast.
Xingdong Wang   +10 more
doaj   +1 more source

Road to sexual maturity: Behavioral event schedule from eclosion to first mating in each sex of Drosophila melanogaster

open access: yesiScience, 2023
Summary: Animals achieve their first mating through the process of sexual maturation. This study examined the precise and detailed timing of a series of behavioral events, including wing expansion, first feeding, first excretion, and courtship, during ...
Ki-Hyeon Seong, Tadashi Uemura, Siu Kang
doaj   +1 more source

The influence of psychological stress in early life on sexual maturation and sexual behavior in male and female rats

open access: yesReproductive Medicine and Biology, 2020
Purpose We studied the influence of psychological stress during the early neonatal period on sexual maturation and sexual behavior in rats. Methods Neonatal male and female rats were divided into control (C) and maternal separation (MS) groups (n = 20‐24
Kiyohito Yano   +13 more
doaj   +1 more source

Sex differences in the association of measures of sexual maturation to common toxicants: Lead, dichloro-diphenyl-trichloroethane (DDT), dichloro-diphenyl-dichloroethylene (DDE), and polychlorinated biphenyls (PCBs)

open access: yesAnnals of Human Biology, 2021
Many studies of human toxicant exposure examine the hypothesis that human sexual maturation can be affected through endocrine disruption. Within this body of literature there is significant variation in the findings.
Casey N. West   +2 more
doaj   +1 more source

An assessment of sexual maturation among school girls in Abakaliki Metropolis, Ebonyi State, South-East Nigeria

open access: yesNigerian Postgraduate Medical Journal, 2016
Background: Sexual maturation is an important milestone which starts between 8 and 14 years in girls. However, varying ages of onset of sexual maturation have been reported in different environments, with more recent studies showing earlier ages of onset
Onyinye Uchenna Anyanwu   +3 more
doaj   +1 more source

Sexual selection shapes development and maturation rates in Drosophila. [PDF]

open access: yes, 2017
Explanations for the evolution of delayed maturity usually invoke trade-offs mediated by growth, but processes of reproductive maturation continue long after growth has ceased.
Hollis, B., Kawecki, T.J., Keller, L.
core   +1 more source

Development of rat female genital cortex and control of female puberty by sexual touch. [PDF]

open access: yesPLoS Biology, 2017
Rat somatosensory cortex contains a large sexually monomorphic genital representation. Genital cortex undergoes an unusual 2-fold expansion during puberty. Here, we investigate genital cortex development and female rat sexual maturation.
Constanze Lenschow   +2 more
doaj   +1 more source

Sportoló és nem sportoló fiúk regionális zsíreloszlásának mintázata [PDF]

open access: yes, 2016
The study deals with the connection between sexual maturation and fat accumulation during male puberty. The purposes were: (1) to follow the alterations in regional body adiposity during genital development; (2) to reveal the differences in fat ...
Négele, Zalán   +2 more
core   +1 more source

The Makorin lep-2 and the lncRNA lep-5 regulate lin-28 to schedule sexual maturation of the C. elegans nervous system

open access: yeseLife, 2019
Sexual maturation must occur on a controlled developmental schedule. In mammals, Makorin3 (MKRN3) and the miRNA regulators LIN28A/B are key regulators of this process, but how they act is unclear. In C.
Hannah Lawson   +5 more
doaj   +1 more source

Sex differences in age‐to‐maturation relate to sexual selection and adult sex ratios in birds

open access: yesEvolution Letters, 2020
Maturation (the age when organisms are physiologically capable of breeding) is one of the major life history traits that have pervasive implications for reproductive strategies, fitness, and population growth.
Sergio Ancona   +3 more
doaj   +1 more source

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