Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 43 for “"arginine vasopressin"”.
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The elderly, arginine vasopressin & selective serotonin reuptake inhibitors
… This dissertation will explore the physiology of Arginine V asopressin and how changes in this system along with other physiological changes in the elderly make the elderly susceptible to hyponatraemia. This problem will then be explored in the context of elderly people with depression using SSRis …
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Nephrotoxicity associated with preeclampsia in an Arginine Vasopressin induced rat pregnancy model
Submitted in fulfillment of the requirements for the degree of Doctor of Philosophy: Health Sciences, Durban University of Technology, Durban, South Africa, 2022.
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Fluid retention in congestive heart failure-the role of natriuretic peptides and arginine vasopressin
… (BNP), C-type natriuretic peptide (CNP) and arginine vasopressin (AVP) in CHF is not fully understood. Studies were done in 300days old male normal and cardiomyopathic hamsters with moderate CHF. Their body and heart weights were measured. Blood was collected for ANF measurement. Urine was …
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Central Cardiovascular Effects of Arginine Vasopressin in the Lateral Habenular Region in Anesthetized Rats
… studies have shown the presence of vasopressinergic and oxytocinergic fibers extending from the paraventricular and suprachiasmatic nuclei in the hypothalamus to other brain structures. The lateral habenular region in the rat brain has been shown to specifically receive …
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The Role of Arginine Vasopressin Receptor 2 in Microvascular Hyperpermeability During Severe Sepsis and Septic Shock
… a novel therapeutic strategy for this condition. Arginine vasopressin (AVP), a hypothalamic hormone, has been used exogenously in sepsis to promote vasoconstriction by activating AVP receptor 1 (V1R). However, recent evidence suggests that an increased fluid retention may be associated when AVP …
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Glymphatic flow diurnal variation in the brain inhibited by circadian rhythm disruption and recovered by arginine vasopressin administration
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2025-05-01
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"""Copulatory memory"": A novel model for the study of recognition in the adult male rat"
… hormone status, and the activity of the peptide, arginine vasopressin. Specifically, the aged male rat which has had little or no previous sexual experience will show deficits in his capacity to recognize a familiar female. In addition, castration and the administration of arginine vasopressin …
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Vasopressin decreases excitability in rat lateral amygdala neurons through inhibition of hyperpolarization-activated cationic current.
… is a primary symptom. The peptide hormones arginine-vasopressin (AVP) and oxytocin (OT) are strongly implicated in social behavior, and may also be involved in the pathophysiology of ASD. Here, we show that AVP causes an increase in excitability, through eliciting a decrease in action …
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ABSENCE OF V1AR ALTERS CARDIAC FUNCTION AT BASELINE AND FOLLOWING ACUTE CARDIAC INJURY
… mortality. Interestingly, the neurohormone arginine vasopressin (AVP) has been implica
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Comparisons of the socio-behavioral differences between chimpanzees (Pan troglodytes) and bonobos (Pan paniscus), investigating the impact of a naturally occurring polymorphic microsatellite deletion in the 5’ flanking region of arginine vasopressin receptor 1a (AVPR1a) on gene expression and sociality within the Pan genus
… region (DupB) in the 5’ flanking region of the arginine vasopressin receptor 1a (AVPR1a) gene. This results in three genotypes (DupB+/+, DupB+/- and DupB-/-) of AVPR1a in chimpanzees. Variations in the length of microsatellites 5’ of AVPR1a have been associated with social behaviors …
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Estradiol regulation of the neurohypophysial hormones in the goldfish, Carassius auratus.
… that are homologous to the mammalian, arginine vasopressin (AVP) and oxytocin (OXT). In teleosts, arginine vasotocin (AVT) and isotocin (IST) replace AVP and OXT, respectively. In mammals, the NHs have distinct functions as AVP is involved with fluid homeostasis and blood pressure …
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The association of the AVPR2 gene with serum sodium and water imbalances during an Ironman Triathlon
… Recent evidence of mutations within the arginine vasopressin 2 receptor (AVPR2) gene, which encodes a constitutively active receptor in the collecting tubules of the kidney, resulted in increased water reabsorption and hyponatraemia in two unrelated male infants. This suggests that serum …
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Circadian Timekeeping of Body Temperature by the Mammalian Suprachiasmatic Nucleus
… subpopulation of these Nms neurons co-expressing arginine vasopressin lengthened the circadian period of CRT. Finally, local chemogenetic inhibition of the SCN Nms neurons prevented hypothermia specifically during the late subjective night and sustained until subjective dawn, but not at other …
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Increasing Complexity of an Hypothalamus-Pituitary-Adrenal Axis Mathematical Model with Predictive Applications and Physiological Implications
… the additional signaling pathway of Arginine Vasopressin increases the model's predictive capability in certain pathological conditions over predecessor models. Additionally, the origination of ultradian rhythm is explored through simulation and two possible explanations are found. …
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Is Increased Water Consumption Among Older Adults Associated with Improvements in Glycemia?
… an association between insulin resistance and arginine vasopressin (AVP), the hormone responsible for regulating body water retention. Analysis of the association between plasma copeptin (an AVP derivative) and fasting glucose, insulin, and homeostasis model assessment of insulin resistance …
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Regulation of Secretin the Neurohypophysis
… 4 weeks after surgery. The presence of SCT and arginine-vasopressin (AVP) in the pituitary; secretin receptor (SCTR), vasopressin receptor 2 (AVP2R), and aquaporin-2 water channel (AQP-2) in the kidney were analyzed using the Western blot technique. Plasma SCT concentrations were measured by …
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Naturally occurring variations in defensive burying behavior are associated with differences in central neuropeptide expression in the male rat
… marked differences in the central expression of arginine vasopressin (AVP) and oxytocin (OT). Thus, relative to animals showing no significant levels of defensive burying activity, rats showing sustained elevations in defensive burying expressed higher levels of AVP mRNA and increased numbers of …
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Ryanodine receptor expression in trophoblasts
… peptide hormones, namely angiotensin II, arginine vasopressin and endothelin 1, were demonstrated to increase [Ca2+]i in BeWo cells, and such increases were suppressed by RyR antagonists and by blockers of the corresponding peptide hormone receptors. These findings indicate that 1) …
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