Výsledky vyhledávání

GnRH agonist stimulation of the pituitary–gonadal axis in children: age and sex differences in circulating inhibin-B and activin-A

Autor: Robert L. Rosenfield, Vasantha Padmanabhan, David James Phillips, Pamela R. Olton, Carol M. Foster, Daniel D Elsholz

Publikováno v: Human Reproduction. 19:2748-2758

BACKGROUND: Inhibin-B decreases and activin increases FSH secretion in adults. We investigated whether an FSH –inhibin/activin feedback loop exists before or during puberty. METHODS: FSH secretion was stimulated with 10mg/kg leuprolide acetate (GnR

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::76b748d5dfb1bb8b25072f0ec316f72e
https://doi.org/10.1093/humrep/deh519

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Incomplete Modified Fast in Obese Early Pubertal Girls Leads to an Increase in 24-Hour Growth Hormone Concentration and a Lessening of the Circadian Pattern in Leptin

Autor: Josephine Z. Kasa-Vubu, Pamela R. Olton, Carol M. Foster, Nichole E. Carlson, Teerin Meckmongkol, Ariel L. Barkan

Publikováno v: The Journal of Clinical Endocrinology & Metabolism. 87:1885-1893

We studied nutrition and GH in eight obese girls, aged 6–11 yr. Blood was sampled every 15 min for 24 h. A 48-h diet providing 25% of assumed caloric needs was imposed, with repeat sampling during the last 24 h. Six nonfasting lean girls were also

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2db0bb6a03b4529f086b75428ca6dbba
https://doi.org/10.1210/jcem.87.4.8250

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Differential effects of aging on activin A and its binding protein, follistatin, across the menopause transition

Autor: Vasantha Padmanabhan, Rudi Ansbacher, Pamela R. Olton, Jane L. Lukacs, Nancy E. Reame

Publikováno v: Fertility and Sterility. 88:1003-1005

To assess the involvement of ovarian-derived regulatory proteins in FSH modulation, we compared FSH, inhibin A, inhibin B, activin A and follistatin in 79 women from the following five groups: young cycling (YC), older cycling (OC), perimenopause (PE

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b3149c6caf8690ed90f33fa653f8679e
https://doi.org/10.1016/j.fertnstert.2006.12.009

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Diurnal changes in FSH-regulatory peptides and their relationship to gonadotrophins in pubertal girls

Autor: Vasantha Padmanabhan, Pamela R. Olton, Carol M. Foster

Publikováno v: Human reproduction (Oxford, England). 20(2)

BACKGROUND: FSH-regulatory peptides participate with GnRH and sex steroids to regulate serum FSH concentrations. We hypothesized that day/night variations in FSH serum concentrations would be associated with diurnal variation in FSH-regulatory peptid

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5a6c078997255f5281d785bc30b90110
https://pubmed.ncbi.nlm.nih.gov/15550493

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Sex differences in FSH-regulatory peptides in pubertal age boys and girls and effects of sex steroid treatment

Autor: Michael S. Racine, Pamela R. Olton, Carol M. Foster, David James Phillips, Vasantha Padmanabhan

Publikováno v: Human reproduction (Oxford, England). 19(7)

BACKGROUND: FSH concentrations are higher in girls than in boys before puberty. We hypothesized that steroid-mediated changes in FSH-regulatory proteins underlie the sex differences in FSH secretion and pubertal timing. METHODS: FSH-regulatory protei

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ca1c4ca9b2c2cc6bdd8ee2fa5d7770aa
https://pubmed.ncbi.nlm.nih.gov/15155605

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Differential regulation of serum immunoreactive luteinizing hormone and bioactive follicle-stimulating hormone by testosterone in early pubertal boys

Autor: Joanne Sonstein, Pamela R. Olton, Carol M. Foster, Vasantha Padmanabhan, Inese Z. Beitins, Morton B. Brown, Robert P. Kelch, Jeanne M. Hassing

Publikováno v: The Journal of clinical endocrinology and metabolism. 70(4)

The microheterogeneity and bioassayable activity of serum FSH (B-FSH) can be regulated by exogenous GnRH in boys with idiopathic hypogonadotropic hypogonadism and by estrogen in a women with gonadal dysgenesis, presumably via hormonally mediated chan

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4ddb7193387fc79edff2a3beb3678406
https://pubmed.ncbi.nlm.nih.gov/2108181

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Akademický článek

Diurnal changes in FSH-regulatory peptides and their relationship to gonadotrophins in pubertal girls.

Autor: Carol M. Foster, Pamela R. Olton, Vasantha Padmanabhan

Publikováno v: Human Reproduction; Feb2005, Vol. 20 Issue 2, p543-548, 6p

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