Titlebook: Sex-Steroid Interactions with Growth Hormone; Johannes D. Veldhuis,Andrea Giustina Book 1999 Springer Science+Business Media New York 1999

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Franco Sanchez-Franco,Fernando Pazos,Gumersindo Fernandez,Judith Lopez,Nuria Palacios,Lucinda Cacice

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Richard J. Krieg Jr.,Paul M. Martha Jr.,James R. Kerrigan,Judy M. Batson,Timothy E. Sayles,Steven J.

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Justo Pastor Casta?o,José Luis Ramírez,José Carlos Garrido-Gracia,Francisco Gracia-Navarro

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Sex-Steroid-Growth Hormone Interactions During Normal Male Puberty during this stage of development. While secondary sexual characteristics develop as a result of the awakening of the hypothalamic-pituitary-gonadal (HPG) axis, the integrity of both the HPG and growth hormone-insulin-like growth factor-I (GH-IGF-I) axes is essential for the acceleration of height v

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Impact of Testosterone Replacement on the Maturation of the Growth Hormone—IGF-I Axisre is preferential augmentation of the amplitude of spontaneous GH pulses, with a subsequent return to or a fall below prepubertal values in early adulthood (2). Some clinical data indicate a sex difference in the timing of these physiological changes in activity of the somatotropic axis (3). Moreov

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Sex-Steroid—Hormone Modulation of the Somatotropic Axis During Normal Male Pubertycentrations of both testosterone and 17-β-estradiol are observed during the growth spurt in late pubertal males. Although GH and gonadal steroid hormones act independently to facilitate pubertal growth, available evidence also supports a physiological role of androgens and estrogens in the neuroendo

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Influence of Testosterone on the GH—IGF-I Axis in Healthy Elderly Menale and female, a topic that has been excellently and extensively reviewed (1–3). In male rats, consensus exists that the daily secretion of growth hormone (GH) is severalfold greater than that of females; that males release GH in high-amplitude, regular pulses, with low interpulse GH concentrations

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