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Etiologies of Sexual Maturation: A Model System Based on the Sexually Maturing Rat
1976Publisher Summary This chapter discusses the etiologies of sexual maturation based on the studies performed in postulated models in rats and children. The chapter outlines the changes in blood in luteinizing hormone (LH) and follicle-stimulating hormone (FSH) during maturation in rats and other animal models.
W D, Odell, R S, Swerdloff
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Light intensity and sexual maturity
American Journal of Physical Anthropology, 1969AbstractThere are confirmable clines, by latitude, of melanin concentration in pigmentation for man as well as other mammals and birds. This has been suggested to be, in man, a result of the importance of vitamin D synthesis which can be inhibited by darker skins in higher latitudes.
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Pediatrician, 1988
Absence of any sign of gonadal development (i.e. increase in size of the testes or presence of breast budding) before the age of 13 years in girls and 14 years in boys represents the condition of delayed sexual maturation. After this age, the patient should be thoroughly clinically examined and a basic biological work-up should be performed ...
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Absence of any sign of gonadal development (i.e. increase in size of the testes or presence of breast budding) before the age of 13 years in girls and 14 years in boys represents the condition of delayed sexual maturation. After this age, the patient should be thoroughly clinically examined and a basic biological work-up should be performed ...
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2023
The pattern of somatic growth reflects the variable allocation of energy and materials throughout ontogeny, with direct impact on an individual’s fitness, and is therefore expected to be adaptive with regard to the different requirements of each life stage (Arendt 1997, Nylin and Gotthard 1998).
Farias, Nahuel Emiliano +2 more
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The pattern of somatic growth reflects the variable allocation of energy and materials throughout ontogeny, with direct impact on an individual’s fitness, and is therefore expected to be adaptive with regard to the different requirements of each life stage (Arendt 1997, Nylin and Gotthard 1998).
Farias, Nahuel Emiliano +2 more
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Pediatrician, 1988
Puberty represents a period of important changes which lead to sexual maturation and active functions of reproduction. Sequences of the somatic and hormonal changes are presented both in boys and girls. Mean ages of onset of puberty are 10.9 and 11.2 in girls and boys, respectively.
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Puberty represents a period of important changes which lead to sexual maturation and active functions of reproduction. Sequences of the somatic and hormonal changes are presented both in boys and girls. Mean ages of onset of puberty are 10.9 and 11.2 in girls and boys, respectively.
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Pediatrics, 2004
To the Editor. — I read with interest the article of Sun et al1 on the timing of sexual maturation among US children that was based on data of the Third National Health Examination Survey (NHANES III).2 The authors estimated that the median age at onset of sexual maturation in boys, ie genital stage 2 (G2) according to Tanner classification, is 10.03 ...
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To the Editor. — I read with interest the article of Sun et al1 on the timing of sexual maturation among US children that was based on data of the Third National Health Examination Survey (NHANES III).2 The authors estimated that the median age at onset of sexual maturation in boys, ie genital stage 2 (G2) according to Tanner classification, is 10.03 ...
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[Sexual and biological maturation].
Anales espanoles de pediatria, 1993We have studied the physical characteristics of strength and the electrocardiographs of 291 boys, between 9 and 15 years of age, and 284 girls from 8 to 14 years old, divided into groups according to their sexual maturation stage (SMS). During this age period, children pass from SMS 1 to SMS 5.
L A, García Llop, A, Ramada Benedito
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Female erectile tissues and sexual dysfunction after pelvic radiotherapy: A scoping review
Ca-A Cancer Journal for Clinicians, 2022Deborah C Marshall, Mas +2 more
exaly