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Academic Journal

Older men exhibit reduced efficacy of and heightened potency downregulation by intravenous pulses of recombinant human LH: a study in 92 healthy men.

  • Authors : Veldhuis JD; Endocrine Research Unit, Mayo Clinic, 200 First St. SW, Rochester, MN 55905, USA. ; Liu PY

Subjects: Down-Regulation* ; Luteinizing Hormone*/Luteinizing Hormone*/Luteinizing Hormone*/administration & dosage; Aging/Aging/Aging/*blood

  • Source: American journal of physiology. Endocrinology and metabolism [Am J Physiol Endocrinol Metab] 2012 Jan 01; Vol. 302 (1), pp. E117-22. Date of Electronic Publication: 2011 Oct 04.Publisher: American Physiological Society Country of Publication: United States NLM ID: 100901226 Publication Model:

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Academic Journal

Analytical construct of reversible desensitization of pituitary-testicular signaling: illustrative application in aging.

  • Authors : Keenan DM; Department of Statistics, University of Virginia, Charlottesville, USA.; Iranmanesh A

Subjects: Models, Biological*; Aging/Aging/Aging/*metabolism ; Luteinizing Hormone/Luteinizing Hormone/Luteinizing Hormone/*blood

  • Source: American journal of physiology. Regulatory, integrative and comparative physiology [Am J Physiol Regul Integr Comp Physiol] 2011 Feb; Vol. 300 (2), pp. R349-60. Date of Electronic Publisher: American Physiological Society Country of Publication: United States NLM ID: 100901230 Publication Model:

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Academic Journal

Age-dependent regression analysis of male gonadal axis.

  • Authors : Keenan DM; Department of Statistics, University of Virginia, Charlottesville, Virginia, USA.; Veldhuis JD

Subjects: Models, Theoretical*; Aging/Aging/Aging/*metabolism ; Brain/Brain/Brain/*metabolism

  • Source: American journal of physiology. Regulatory, integrative and comparative physiology [Am J Physiol Regul Integr Comp Physiol] 2009 Nov; Vol. 297 (5), pp. R1215-27. Date of Electronic Publisher: American Physiological Society Country of Publication: United States NLM ID: 100901230 Publication Model:

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Academic Journal

Sex defines the age dependence of endogenous ACTH-cortisol dose responsiveness.

  • Authors : Keenan DM; Department of Statistics, University of Virginia, Charlottesville, Virginia, USA.; Roelfsema F

Subjects: Sex Characteristics*; Adrenocorticotropic Hormone/Adrenocorticotropic Hormone/Adrenocorticotropic Hormone/*blood ; Adrenocorticotropic Hormone/Adrenocorticotropic Hormone/Adrenocorticotropic Hormone/*physiology

  • Source: American journal of physiology. Regulatory, integrative and comparative physiology [Am J Physiol Regul Integr Comp Physiol] 2009 Aug; Vol. 297 (2), pp. R515-23. Date of Electronic Publisher: American Physiological Society Country of Publication: United States NLM ID: 100901230 Publication Model:

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Academic Journal

Aging attenuates both the regularity and joint synchrony of LH and testosterone secretion in normal men: analyses via a model of graded GnRH receptor blockade.

  • Authors : Liu PY; Endocrine Research Unit, Dept. of Internal Medicine, Mayo School of Graduate Medical Education, General Clinical Research Center, Mayo Clinic, Rochester, MN 55905, USA.; Pincus SM

Subjects: Aging*; Luteinizing Hormone/Luteinizing Hormone/Luteinizing Hormone/*blood ; Receptors, LHRH/Receptors, LHRH/Receptors, LHRH/*antagonists & inhibitors

  • Source: American journal of physiology. Endocrinology and metabolism [Am J Physiol Endocrinol Metab] 2006 Jan; Vol. 290 (1), pp. E34-E41.Publisher: American Physiological Society Country of Publication: United States NLM ID: 100901226 Publication Model: Print

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Academic Journal

Age diminishes the testicular steroidogenic response to repeated intravenous pulses of recombinant human LH during acute GnRH-receptor blockade in healthy men.

  • Authors : Veldhuis JD; Endocrine Research Unit, Department of Internal Medicine, Mayo School of Graduate Medical Education, General Clinical Research Center, Mayo Clinic, Rochester, MN 55905, USA. ; Veldhuis NJ

Subjects: Aging/Aging/Aging/*metabolism ; Gonadotropin-Releasing Hormone/Gonadotropin-Releasing Hormone/Gonadotropin-Releasing Hormone/*analogs & derivatives ; Luteinizing Hormone/Luteinizing Hormone/Luteinizing Hormone/*administration & dosage

  • Source: American journal of physiology. Endocrinology and metabolism [Am J Physiol Endocrinol Metab] 2005 Apr; Vol. 288 (4), pp. E775-81. Date of Electronic Publication: 2004 Nov 30.Publisher: American Physiological Society Country of Publication: United States NLM ID: 100901226 Publication Model:

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Academic Journal

Analysis of bidirectional pattern synchrony of concentration-secretion pairs: implementation in the human testicular and adrenal axes.

  • Authors : Liu PY; Division of Endocrinology, Department of Internal Medicine, Endocrine Research Unit and General Clinical Research Center, Mayo Clinic, Mayo Medical and Graduate Schools of Medicine, Rochester, MN 55905, USA.; Pincus SM

Subjects: Aging/Aging/Aging/*physiology ; Hypothalamo-Hypophyseal System/Hypothalamo-Hypophyseal System/Hypothalamo-Hypophyseal System/*physiology ; Pituitary-Adrenal System/Pituitary-Adrenal System/Pituitary-Adrenal System/*physiology

  • Source: American journal of physiology. Regulatory, integrative and comparative physiology [Am J Physiol Regul Integr Comp Physiol] 2005 Feb; Vol. 288 (2), pp. R440-6. Date of Electronic Publisher: American Physiological Society Country of Publication: United States NLM ID: 100901230 Publication Model:

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Academic Journal

Divergent gonadotropin-gonadal dose-responsive coupling in healthy young and aging men.

  • Authors : Keenan DM; Division of Endocrinology and Metabolism, Dept. of Internal Medicine, Mayo Medical and Graduate Schools of Medicine, Mayo Clinic, 200 First St. SW, Rochester, MN 55905, USA.; Veldhuis JD

Subjects: Aging/Aging/Aging/*metabolism ; Luteinizing Hormone/Luteinizing Hormone/Luteinizing Hormone/*blood ; Testosterone/Testosterone/Testosterone/*metabolism

  • Source: American journal of physiology. Regulatory, integrative and comparative physiology [Am J Physiol Regul Integr Comp Physiol] 2004 Feb; Vol. 286 (2), pp. R381-9. Date of Electronic Publisher: American Physiological Society Country of Publication: United States NLM ID: 100901230 Publication Model:

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Academic Journal

Disruption of the hypothalamic luteinizing hormone pulsing mechanism in aging men.

  • Authors : Keenan DM; Department of Statistics, University of Virginia, Charlottesville, VA 22903, USA.; Veldhuis JD

Subjects: Aging/Aging/Aging/*physiology ; Hypothalamus/Hypothalamus/Hypothalamus/*growth & development ; Luteinizing Hormone/Luteinizing Hormone/Luteinizing Hormone/*metabolism

  • Source: American journal of physiology. Regulatory, integrative and comparative physiology [Am J Physiol Regul Integr Comp Physiol] 2001 Dec; Vol. 281 (6), pp. R1917-24.Publisher: American Physiological Society Country of Publication: United States NLM ID: 100901230 Publication Model: Print

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Academic Journal

Hypothesis testing of the aging male gonadal axis via a biomathematical construct.

  • Authors : Keenan DM; Department of Statistics, University of Virginia, Charlottesville, Virginia 22903, USA.; Veldhuis JD

Subjects: Models, Biological*; Aging/Aging/Aging/*metabolism ; Genitalia, Male/Genitalia, Male/Genitalia, Male/*metabolism

  • Source: American journal of physiology. Regulatory, integrative and comparative physiology [Am J Physiol Regul Integr Comp Physiol] 2001 Jun; Vol. 280 (6), pp. R1755-71.Publisher: American Physiological Society Country of Publication: United States NLM ID: 100901230 Publication Model: Print

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