Effects of Aging on Biologically Active Pituitary Lh in Rats

References

• Albeaux-Fernet M, Bohler C CSS, Karpas A E. Testicular function in the aging male. Geriatric Endocrinology (Aging), R B Greenblatt. Raven Press, New York 1978; Vol 5: 201–216
   Google Scholar
• Blackman M R, Mukherjee A, Tsitouras P D, Harman S M. Decreased in vitro section of LH, FSH, and free a-subunits by pituitary cells from old male rats. Am J Physiol 1985; 249: E145–E151
   Google Scholar
• Celani M F, Montanini V, Baraghini G F, Carani C, Marrama P. Effects of acute stimulation with gonadotropin releasing hormone (GnRH) on biologically active serum luteinizing hormone (LH) in elderly men. J Endocrinol Invest 1984; 7: 589–595
   PubMedGoogle Scholar
• Chan S WC, Leathern J H, Esashi T. Testicular metabolism and serum testosterone in aging male rats. Endocrinology 1977; 101: 128–133
   PubMed Web of Science ®Google Scholar
• Chen G CC, Lin T, Murono E, Osterman J, Cole B T, Nankin H R. The aging Leydig cell: 2. Two distinct populations of Leydig cells and the possible site of detective steroidogenesis. Steroids 1981; 37: 63–72
   PubMedGoogle Scholar
• Gray G D. Changes in the levels of hormone and testosterone in the circulation of aging male rats. J Endocrinol 1978; 76: 551–552
   PubMed Web of Science ®Google Scholar
• Harman S M, Danner R L, Roth G S. Testosterone secretion in the rat in response to chorionic gonadotro-phin: Alterations with age. Endocrinology 1978; 102: 540–544
   PubMedGoogle Scholar
• Kaler L W, Critchlow V. Anterior pituitary luteinizing hormone secretion during continuous perfusion in aging male rats. Mech Aging Dev 1984; 25: 103–115
   PubMed Web of Science ®Google Scholar
• Kaler L W, Neaves W B. The steroidogenic capacity of the aging rat testis. J Gerontol 1981; 36: 398–404
   PubMedGoogle Scholar
• Keel B A, Grotjan H E, Jr. Influence of bilateral cryptorchidism on rat pituitary luteinizing hormone charge microheterogeneity. Biol Reprod 1985; 32: 83–89
   PubMedGoogle Scholar
• Keel B A, Grotjan H E, Jr. Characterization of rat pituitary luteinizing hormone charge microheterogeneity in male and female rats using chromatofocusing: Effects of castration. Endocrinology 1985; 117: 354–360
   PubMed Web of Science ®Google Scholar
• Keel B A, Schanbacher B D. Charge microheterogeneity of ovine follicle-stimulating hormone in rams and steroid-treated wethers. Biol Reprod 1987; 37: 786–796
   PubMed Web of Science ®Google Scholar
• Kinoshita Y, Higashi Y, Winters S J, Oshima H, Troen P. An analysis of the age-related decline in testicular steroidogenesis in the rat. Biol Reprod 1985; 32: 309–314
   PubMedGoogle Scholar
• Lin T, Murono E, Osterman J, Allen D O, Nankin H R. The aging cell: 1. Testosterone and adenosine 3′, 5′ -monophosphate responses to gonadotropin stimulation in rats. Steroids 1980; 35: 653–663
   PubMed Web of Science ®Google Scholar
• Marrama P, Montanini V, Celani M F, et al. Decrease in luteinizing hormone biological activity/immuno-reactivity ratio in elderly men. Maturitas 1984; 5: 221–231
   Google Scholar
• Riegle G D, Miller A E. Aging effects on the hypothalamic-hypophyseal-gonadal control system in the rat. The Aging Reproductive system (Aging), E L Schneider. Raven Press, New York 1978; Vol. 4: 159–192
   Google Scholar
• Shaar C J, Euker J S, Riegle G D, Meites J. Effects of castration and gonadal steroids on serum luteinizing hormone and prolactin in old and young rats. J Endocrinol 1975; 66: 45–51
   PubMed Web of Science ®Google Scholar
• Sonntag W E, Forman L J, Fiori J M, Hylka V W, Meites J. Decreased ability of old male rats to secrete luteinizing hormone (LH) is not due to alterations in pituitary LH-releasing hormone receptors. Endocrinology 1984; 114: 1657–1664
   PubMedGoogle Scholar
• Tsitouras P D, Kowatch M A, Harman S M. Age-related alterations of isolated rat Leydig cell function: Gonadotropin receptors, adenosine 3′,5′-monophosphate response, and testosterone secretion. Endocrinology 1979; 105: 1400–1405
   PubMedGoogle Scholar
• Warner B A, Dufau M L, Santen R J. Effects of aging and illness on the pituitary testicular axis in men: Qualitative as well as quantitative changes in luteinizing hormone. J Clin Endocrinol Metab 1985; 60: 263–268
   PubMed Web of Science ®Google Scholar