Browsing by Author "Amstalden, Marcel"
Now showing items 1-12 of 12
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Velez Jaramillo, Isabel C. (2010-07-14)In Experiment 1, 12 cyclic mares were assigned randomly to one of two groups (n = 6/group): 1) Control, saline; and 2) GnRH, 100 mu g/h. Between 3 and 6 d after ovulation (Day 0), Alzet osmotic minipumps (Model 2ML1) ...
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The Effects of Leptin Antagonist on Hypothalamic Neuropeptide Y Circuitry in Infantile Male Lambs. Bedenbaugh, Michelle (2012-04-16)It is proposed that leptin signaling during infantile development is critical for structural organization of hypothalamic circuitry involved in the control of food intake and energy expenditure. The present study tested ...
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Allen, Carolyn C. (2011-10-21)Developmental changes within the hypothalamus are necessary for maturation of the reproductive neuroendocrine axis. Recent reports have implicated several neuronal networks in this process, but genes involved in their ...
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Thorson, Jennifer Frances (2013-01-28)The seasonal termination of ovarian cycles in mares initiated near the time of the autumnal equinox is a significant managerial issue for horse breeders world-wide. Studies presented herein had two over-arching aims. In ...
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Redmond, Jeremy Scott (2012-02-14)Increased pulsatile release of gonadotropin-releasing hormone (GnRH) and luteinizing hormone (LH) is critical for pubertal initiation of ovarian cycles in female mammals. Kisspeptin, a peptide product of the Kiss1 gene, ...
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Amstalden, Marcel (Texas A&M University, 2000)The present study tested the hypothesis that short-term fasting would reduce leptin gene expression, circulating leptin, and luteinizing hormone (LH) pulsatility in prepubertal heifers in association with a decrease in ...
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Alves, Bruna R. C. (2014-05-01)Accelerated body weight gain during the juvenile period leads to early maturation of the reproductive neuroendocrine system and puberty by advancing the onset of high-frequency release of gonadotropin-releasing hormone ...
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De Carvalho Cardoso, Rodolfo (2014-06-26)Nutritional and metabolic statuses during postnatal development control the timing of pubertal maturation in mammals. Studies reported herein had two overall aims. In Aim I, objectives were to characterize functional and ...
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Bedenbaugh, Michelle Nichole (2014-08-28)The pubertal initiation of a high-frequency, pulsatile release of gonadotropin-releasing hormone (GnRH) involves an escape from estradiol negative feedback. Kisspeptin neurons are proposed to mediate the effects of estradiol, ...
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Chiles, Kelley (2012-07-16)Superovulation of donor cows, embryo transfer, and estrus synchronization of recipients are widely used technologies in the purebred cattle industry. Progress continues to be made to achieve efficient and economic use of ...
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Prezotto, Ligia Dias (2012-07-16)Four experiments were conducted to test the hypothesis that RF-amide related peptide 3 (RFRP3) negatively regulate the secretion of LH in mares. In Exp. 1, mares received native gonadotropin-releasing hormone (GnRH) ...
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Amstalden, Marcel (Texas A&M University, 2004-09-30)The physiological mechanisms through which nutrition mediates its effects in controlling reproduction are not well characterized. Both neural and endocrine components have been implicated in the communication of nutritional ...