Browsing by Author "Hinrichs, Katrin"
Now showing items 1-17 of 17
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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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Foster, Mary L. (2010-07-14)Assessment of sperm viability is an important component for evaluating stallion sperm quality. The flow cytometer is considered the standard in the assessment of sperm plasma membrane integrity (viability); however, ...
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Martino, Nicola A; Dell’Aquila, Maria E; Filioli Uranio, Manuel; Rutigliano, Lucia; Nicassio, Michele; Lacalandra, Giovanni M; Hinrichs, Katrin (Reproductive Biology and Endocrinology, 2014)
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Grady, Sicilia Tatiana (2017-06-09)Aging affects the reproductive efficiency of females. In rodent models, injection of mesenchymal stem cells (MSCs) improves function and induces trophic mRNA expression in ovaries compromised by chemotherapy. However, ...
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Morton, Stephanie (Texas A&M University, 2005-02-17)Objectives were to determine if low-dose, continuous infusion of GnRH from Fall to Spring, would prevent seasonal anovulation in mares. Twenty Quarter Horse mares, ages 18 mo to 24 yrs, were stratified by age and body ...
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O'Neil, Meaghan Marie (2017-12-10)Continuous infusion with native gonadotropin-releasing hormone (GnRH) restores follicular growth and ovulation in approximately 85% of winter anovulatory mares. However, the potential role of estradiol-17β (E2) in enhancing ...
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Mortensen, Christopher John (2009-05-15)Horse owners commonly maintain their broodmares in training and competition during the breeding season. The effect this has on mare reproductive efficiency has received limited attention. Heat stress has shown to be ...
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Willingham-Rocky, Lauri A. (2009-05-15)Traditional methods of oocyte selection for in vitro studies have proven inefficient with respect to achieving a level of predictability for competency. In this study, a novel method of oocyte selection was implemented ...
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Epple - Farmer, Jessica Anne (2009-05-15)Pregnancy succeeds because the fetal allograft survives in the presence of a fully functional maternal immune system. The placenta, especially its trophoblast, provides the initial barrier between the maternal and fetal ...
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Loux, Shavahn C (2013-12-02)In vitro fertilization does not occur readily in the horse. Recent evidence suggests that this is due to failure to initiate hyperactivated motility in vitro; however, little is known about the induction of hyperactivated ...
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Rowland, Aileen Long (2021-07-19)Mesenchymal stem cells (MSCs) have been used for decades to treat a variety of conditions in humans and animals, but consistent and reproducible efficacy has yet to be demonstrated. Two possible reasons for inconsistent ...
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Commaille, Lynn Frances (2009-05-15)The objective of this study was to determine whether exercise-induced hyperthermia results in an increase in uterine temperature, as measured by an iButton temperature-measurement device inserted into the uterus, comparable ...
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Morgan, Sommer Christine (2009-05-15)In cattle and sheep, a significant decrease in temperature has been noted prior to parturition. In the mare, similar temperature decreases have been documented, although results have been inconsistent when temperatures ...
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Rolke, Kristin Rose (2009-05-15)In vitro fertilization is not efficient in the horse, and this may be due to a failure of induction of hyperactivated motility in stallion sperm in vitro. Hyperactivated motility is characterized by high curvilinear velocity ...
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Harding, Heather Darby (Texas A&M University, 2007-04-25)The Oct-4 transcription factor is believed to co-regulate early embryonic development of mammals due to the correlation of its presence with the maintenance of pluripotency. It is commonly used as a marker for the ...
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Hayden, Shelby Shalene (2013-11-08)Placement of sperm deep in the equine uterine horn allows fewer sperm to be inseminated while maintaining acceptable fertility, and has been promoted for use in circumstances when fertility would be expected to be low if ...
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Cooper, Dee A (Texas A&M University, 2006-08-16)We hypothesized that marked reductions in secretion of luteinizing hormone (LH) during transitional and anovulatory periods can be accounted for by similar reductions in hypothalamic gonadotropin-releasing hormone (GnRH) ...