Results 251 to 260 of about 24,051 (299)

Photoperiodic effects on somatic growth and gonadal maturation in Mickey Mouse platy, Xiphophorus maculatus (Gunther, 1866)

open access: yesFish Physiology and Biochemistry, 2020
Photoperiod is important in initiation or suppression of reproductive timing and gonadal maturation which varies with species. The aim of the present study was to investigate the effect of two photoperiodic manipulating regimes, i.e., long (18L:6D) and ...
Bela Zutshi
exaly   +2 more sources
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GONADAL DYSGENESIS: ON MATURE REFLECTION!

Age and Ageing, 1988
It is unusual for disorders of sexual differentiation to be first diagnosed in old age. We describe a case of 46XY pure gonadal dysgenesis, aged 93 years at the time of diagnosis, the oldest patient with this disorder ever reported.
G A, Lees, O J, Corrado, W E, Bagnall
openaire   +2 more sources

Temperature manipulation stimulates gonadal maturation and sex steroid production in Senegalese soleSolea senegalensisKaup kept under two different light regimes

open access: yesAquaculture Research, 2008
9 páginas, 3 figuras, 1 tabla. The definitive version is available at www.blackwell-synergy.comThis study evaluates the influence of temperature manipulation on circulating levels of sex steroids and gonadal maturation in F1 generation Senegalese sole ...
Angel Garcia-Lopez   +2 more
exaly   +2 more sources

Skeletal Maturation in Streak Gonad Syndrome

Gynecologic and Obstetric Investigation, 2010
Skeletal ages of patients with streak gonad syndrome were determined by the Schinz and TW2 methods as well as by bone scans. Seventy-three subjects were examined. They were classified according to their chromosomal complement, body height, chronological age and previous hormonal treatment. Retarded bone age was a common finding on the hand, wrist, hip,
P, Bösze   +6 more
openaire   +2 more sources

Neuropeptide Y in the human prenatal and mature gonads

Neuropeptides, 1996
In the present paper we have examined the distribution and identity of neuropeptide Y (NPY) immunoreactivity in the prenatal and mature human gonads. Tissue specimens were obtained from prenatal gonads (gestational age < 42 weeks) of induced abortions, premature birth and stillbirths.
J C, Jørgensen   +2 more
openaire   +2 more sources

Effect of infantile stimulation on gonadal maturation of rats

Journal of Psychosomatic Research, 1968
Abstract The present study investigated the effect of preweaning handling on gonadal maturation of rats. Analysis of the results indicated that the apparent variation between handled and non-handled animals was primarily due to between litter differences. The findings of the study emphasize the importance of considering differences between litters in
L, Branchey, R C, Schiavi
openaire   +2 more sources

Male display characters, gonadal maturation and androgens in the cichlid fish Oreochromis mossambicus [PDF]

open access: yesActa Ethologica, 1999
The relationships between gonadal maturation and the expression of behavioral and morphological display characters in O. mossambicus was investigated and the possible role of androgens in the coordination of this process was evaluated using genital ...
Rui F Oliveira, V C Almada
exaly   +1 more source

ADRENAL AND GONADAL STEROIDS IN GIRLS DURING SEXUAL MATURATION

Clinical Endocrinology, 1978
SUMMARYThe peripheral venous plasma concentrations of gonadotrophins (LH and FSH), prolactin (Prl), cortisol, dehydroepiandrosterone (DHA), dehydroepiandrosterone‐sulphate (DHA‐S), pregnenolone (Δ5P), progesterone (P), 17‐hydroxyprogesterone (17P), androstenedione (A), testosterone (T), dihydrotestosterone (DHT) and oestradiol (E2) were measured in ...
A. R. Genazzani   +5 more
openaire   +4 more sources

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