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 49 for “"Paraventricular nucleus"”.
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Evidence for effects of phoenixin on neurons of the paraventricular nucleus
The paraventricular nucleus (PVN) of the hypothalamus has been implicated in autonomic regulation. Through projections to the pituitary gland, median eminence and hindbrain, the PVN plays a role in stress response and other autonomic functions. Recent findings have indicated that both phoenixin …
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Serotonin 1A Receptor Signaling in the Hypothalamic Paraventricular Nucleus of the Peripubertal Rat
… receptor signaling in adult hypothalamic rat paraventricular nucleus (PVN).</p> <p>Given the clinical relevance of potential age-dependent differences in serotonergic signaling and regulation of hypothalamic function, the objective of the studies in this dissertation was to identify and …
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Fasting alters histone methylation in paraventricular nucleus of chick through regulating of polycomb repressive complex 2
… fasting stress during neonatal period in chicks' paraventricular nucleus (PVN). In this study, we investigated the detailed mechanism behind changes in H3K27 methylation following fasting stress. After 24 hours fasting on 3 days-of-age (D3), chicks exhibited elevated mRNA levels of PRC2 key …
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The Role of the Circadian Clock in the Paraventricular Nucleus of the Hypothalamus in Diurnal Energy Balance
… circadian transcription factor, BMAL1, in the paraventricular nucleus (PVN) of the hypothalamus has revealed its importance in driving rhythms in energy intake and metabolism, its transcriptional functions across time and in individual cell types in the PVN are not well understood. In this …
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Characterization of Tyrosine Hydroxylase-Positive Neurons Projections from the Paraventricular Nucleus of Hypothalamus to Hindbrain Autonomic Regulatory Centers
… the anatomical projections of TH neurons in the paraventricular nucleus hypothalamus (PVN) to key parasympathetic and sympathetic premotor nuclei in medulla oblongata, including the nucleus tractus solitarius (NTS), dorsal motor nucleus of the vagus (DMV), and rostral ventrolateral medulla …
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Cytochrome P450 1B1 and 12/15 Lipoxygenase Interaction in Paraventricular Nucleus in Angiotensin II-induced Hypertension in Females
… (2-methoxyestradiol, 2-ME) and ALOX15 in the paraventricular nucleus (PVN) as a mechanism that protects against Ang II-induced hypertension and its associated pathogenesis in female mice. <strong>Methods:</strong> Experiments were conducted in intact and ovariectomized (OVX) wild type (WT), …
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Neurons projecting to the paraventricular nucleus of the hypothalamus are activated and contribute to cardiorespiratory responses to systemic acute hypoxia
Activation of peripheral and central chemoreceptors contributes to homeostatic responses that maintain optimal blood gas levels, including oxygen and carbon dioxide. Brainstem neurons in the nTS and CVLM integrate and modulate chemosensory information and participate in control of cardiorespiratory …
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Neuromedin U Acts via the Paraventricular Nucleus of the Hypothalamus and the Dorsal Raphe Nucleus to Regulate Motivation for High-Fat Food
… primarily been attributed to signaling in the paraventricular nucleus of the hypothalamus (PVN), NMU has also been found in other brain regions involved in both feeding behavior and motivation. We investigate the effects of NMU on motivation for food and food intake, and identify the brain …
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Naturally occurring variations in defensive burying behavior are associated with differences in central neuropeptide expression in the male rat
… levels of AVP and OT mRNA within the supraoptic nucleus and subregions of the paraventricular nucleus of the hypothalamus responsible for neuroendocrine and autonomic function. CRH mRNA levels did not vary as a function of burying activity in the central nucleus of the amygdala, the anterior …
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Effects of nicotine on content of corticotropin releasing factor (CRF) in rat amygdala, hypothalamus and brain stem
… were observed in micro-dissected hypothalamic paraventricular nucleus, amygdaloid and brain stem nuclei. As expected, plasma corticosterone levels were significantly increased with both doses of nicotine. Overall, no clear cut effects of nicotine on CRF were observed. Micro-dissection studies …
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Ossitocina nella Sostanza Nera del ratto: azione sull'attività locomotoria e interazione con i neuroni dopaminergici, glutammatergici e GABAergici nigrali
… from the parvocellular compartment of the paraventricular nucleus of the hypothalamus. Moreover, oxytocinergic receptors and oxytocin receptor messenger RNA have been shown to be present in human and rat substantia nigra, respectively. Furthermore, it has been demonstrated that a …
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Integration of Homeostatic and Hedonic Brain Centers in the Regulation of Feeding Behaviors
… with hypothalamic brain nuclei, specifically the paraventricular nucleus of the hypothalamus (PVN) which controls food intake to maintain body weight. Additionally, pathological overconsumption of high-fat food is exacerbated by the reinforcing properties of high-fat food that drive hedonic …
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The interactive and individual effects of orexin A and neurotensin in the brain on spontaneous physical activity.
… activation of dopamine receptors in the nucleus accumbens. Finally after coinjecting orexin A and neurotensin in the rostrolateral hypothalamus, we found that neurotensin antagonizes the effect of orexin A on spontaneous physical activity in the rostrolateral hypothalamus. We confirm here …
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The External Globus Pallidus: Bidirectional Control Over Anxiety-Related Behavior Mediated By Crfr1
… in stress-responsive nuclei, including the paraventricular nucleus of the hypothalamus (PVN) and the central nucleus of the amygdala (CeA), that provide excitatory input to the GPe. Additionally, I show that activation of CRFR1 neurons using Designer Receptors Exclusively Activated by …
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Increase of glucocorticoids is not required for the acquisition, but hinders the extinction, of lithium-induced conditioned taste aversion
… aversion (CTA) causes c-Fos expression in the paraventricular nucleus and increases the plasma level of corticosterone with activation of the hypothalamic–pituitary–adrenal axis. This study was examined to define the role of glucocorticoid in the acquisition and extinction of lithium-induced …
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Characterizing cerebellin-short, a novel circadian peptide, in the rat suprachiasmatic nucleus
… cycle, are orchestrated by the suprachiasmatic nucleus (SCN) located in the hypothalamus. Mass spectrometry peptidomics of the SCN identified the small peptide cerebellin-short (SGSAKBSAIRSTN) consisting of 15 amino acids, which is released from the SCN in circadian fashion. Cerebellin-short is …
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Satiety induced by neuropeptide FF and gastrin in birds
… in the lateral hypothalamus (LH), paraventricular nucleus (PVN), arcuate nucleus, nucleus of the solitary tract, and area postrema at 1 h post-injection. Although a variety of genes were measured in those activated nuclei, there were only differences in melanin-concentrating hormone …
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Effects of social context on endocrine function and Zif268 expression in response to an acute stressor in adolescent and adult rats
… cell counts were higher in the arcuate nucleus in both age groups after isolation (p = 0.007) and higher in the paraventricular nucleus of adolescents compared with adults during the recovery phase irrespective of partner familiarity. There was a significant decrease in immunoreactive …
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Neurochemical and functional characterisation of the Melanin-concentrating hormone system in the rat brain
… hormone and neuropeptide Y in the arcuate nucleus. Additionally, MCHR-1 IR was co-localised with the neuropeptides vasopressin and oxytocin in magnocellular neurons of the supraoptic and paraventricular hypothalamic nucleus and corticotrophin releasing hormone in the parvocellular division …
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Role of testosterone in mediating prenatel ethanol effects on hypothalamic-pituitary-adrenal activity in male rats
… inhibitory AVP signals upstream from the paraventricular nucleus, and thus contribute to the HPA hyperresponsiveness seen in E males. Together these findings suggest that central regulation of both the HPA and HPG axes are altered by prenatal ethanol exposure. The capacity of testosterone …
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