S. S. C. Yen
University of California, San Diego
188 Papers
4.8K Citations
S. S. C. Yen is an academic researcher from University of California, San Diego. The author has contributed to research in topics: Luteinizing hormone & Gonadotropin. The author has an hindex of 75, co-authored 188 publications. Previous affiliations of S. S. C. Yen include Salk Institute for Biological Studies & Scripps Health.
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Papers
Effect of sustained hyperglycemia on the levels of human chorionic somatomammotropin in mid-pregnancy☆
L.N. Ajabor,S. S. C. Yen +1 more
TL;DR: To elucidate further the effect of maternal glucose concentration in the regulation of human chorionic somatomammotropin (HCS) secretion, normal women in mid-pregnancy and in the third trimester were subjected to sustained hyperglycemia and transient hyper glycemia via glucose infusion and rapid intravenous glucose tolerance test.
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Hypothalamic-pituitary-ovarian interactions during reproductive senescence in the rat.
TL;DR: Changes in hormone and neurotransmitter concentrations were deomonstrated in association with the various stages of reproductive senescence and with age advancement and involved the hypothalamic, pitiutary and steroid systems.
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Hypothalamic hypopituitarism in an adolescent girl: assessment by a direct functional test of the adenohypophysis.
TL;DR: The responsiveness of the adenohypophysis during the sequential stimuli was impaired and the associated rise of growth hormone (GH) and prolactin (PRL) seen in normal subjects in response to arginine infusion was absent.
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Dependence of Mean Levels of Circulating Luteinizing Hormone upon Pulsatile Amplitude and Frequency
TL;DR: The data suggest that 1) the rate at which LH is cleared from the peripheral circulation (expressed as percentage removed per unit time) is independent of both LH concentrations and the sex steroid milieu, and 2) most circulating LH is released in discrete pulses and little, if any, is release in a nonpulsatile or "tonic" mode.
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The effect of l-dopa and chlorpromazine on prolactin and growth hormone secretion in normal women
H. Leblanc,S. S. C. Yen +1 more
TL;DR: The time course of simultaneous changes in prolactin (PRL) and growth hormone secretion in response to a single dose of L-dopa and chlorpromazine was determined in normal women, suggesting L-Dopa inhibits PRL release, but not synthesis, by the pituitary.
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