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 15 of 15 for “"sympathetic nervous system (SNS)"”.
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The Relationship of Level of Traumatic Exposure, Perceived Stress, and Resilience with Salivary Cortisol and Salivary Alpha-Amylase Diurnal Rhythm in Palestinian Children 10-12 Years Exposed to Chronic War Violence
… salivary alpha-amylase, a surrogate marker of sympathetic nervous system (SNS), have been used to explore relationships of studies psychoneurobiological factors and processes related to stress. This study is exceptional in its examination of stress-related processes in a Palestinian child …
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Notch Signaling in Human Neuroblastoma Cells
… is a childhood tumor derived from the sympathetic nervous system (SNS). It is believed that the tumors arise from cells halted in their differentiation and due to their immature phenotype; they express proteins normally only detected during embryogenesis. One such protein is Hash-1, …
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Cerebral Regulation of Cardiovascular Functioning and Fluency among Anxious and Nonanxious Men
… hemispheric regulation of the autonomic nervous system (ANS) among high anxious and nonanxious university undergraduate men using a novel laboratory paradigm. Specifically, this three phase paradigm entailed the administration of a verbal fluency (left frontal) and nonverbal fluency …
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Applications of blood biomarkers of traumatic brain injury across the severity spectrum---a focus on pathophysiological mechanisms
… secondary injury processes, including central nervous system (CNS) injury, sympathetic nervous system (SNS) activity, inflammation, vascular injury and hemostasis. RESULTS. In moderate-to-severe TBI, we found significant, dynamic pathological associations between SNS hyperactivity, …
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Plasticity of Adrenal Chromaffin Cell Function During Inflammation and Exposure to Microbe-Associated Molecular Patterns
The sympathetic nervous system (SNS) is part of an integrative network that functions to restore homeostasis following injury and infection. The SNS provides negative feedback control over inflammation through the secretion of catecholamines from postganglionic sympathetic neurons and adrenal …
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Arterial Baroreflex Regulation of Sympathetic Discharge During Maximal Voluntary End-Inspiratory Apnea
The sympathetic nervous system (SNS) increases sympathetic outflow during physiological stress to maintain blood pressure (BP) homeostasis. The arterial baroreflex represents a critical mechanism regulating sympathetic outflow during rest and physiological stress. Volitional apnea, seen in …
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Chronic Stress Promotes Tumor Growth Through Increased Bdnf Production and Neo-Innervation
<p><strong>Background:</strong> Activation of the sympathetic nervous system (SNS) in response to chronic biobehavioral stress results in high levels of catecholamines and persistent activation of adrenergic signaling, which promotes tumor growth and progression. However it is unknown how …
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Impact of Glycemic Therapy on Myocardial Sympathetic Neuronal Integrity and Left Ventricular Function in Insulin Resistant Diabetic Rats: Serial Evaluation by 11C-meta-Hydroxyephedrine Positron Emission Tomography
… myocardial norepinephrine (NE) content, enhanced sympathetic nervous system (SNS) activity, altered resting heart rate, and depressed heart rate variability. Positron emission tomography (PET) using the NE analogue [11C]meta-hydroxyephedrine ([11C]HED) provides an index of myocardial sympathetic …
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Effect of Sympathetic Nervous System Mediators On The Tumor Microenvironment Via Small Extracellular Vesicles In Ovarian Cancer
<p><strong>Effect of sympathetic nervous system mediators on the tumor microenvironment via small extracellular vesicles in ovarian cancer </strong></p> <p>Sujanitha Umamaheswaran, BTech</p> <p>Advisor: Anil K. Sood, MD</p> <p>Background:Psychological stress can promote progression of gynecological …
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Estradiol and Daily Affective Experiences in Trauma-Exposed Women
… with enduring changes in two biological stress systems: the sympathetic nervous system (SNS) and the hypothalamic-pituitary-adrenal (HPA) axis. In women, activity in both systems is additionally modulated by fluctuations in levels of sex hormones (e.g., estradiol), which could influence …
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Transcriptional Regulation by Hypoxia-Inducible Factors in Tumor Cells
… solid tumor among children and arises from early sympathetic nervous system (SNS) cells arrested in their development. Generally, a low tumor cell differentiation correlates to poor prognosis. Solid tumors, like neuroblastoma, frequently contain regions of oxygen deficiency ? hypoxia ? caused by a …
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How does pulmonary exposure to particulate matter predispose the heart to increased injury after myocardial infarction?
… reperfusion injury secondary to activation of a systemic inflammatory response, endothelial dysfunction and triggering of transient receptor potential vanilloid 1 (TRPV1) mediated autonomic reflexes in the lung. Examination of bronchoalveolar lavage (BAL) fluid revealed pulmonary inflammation 6 h …
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Aging and Sympathetic Neurotransmission in Two Strains of Rats that Differ in Longevity and Immune Profiles
<p>Age-related changes in sympathetic neurotransmission in immune organs may be associated with immunosenescence; however no causal relationship has been established. From previous studies in Fischer rats (F344), we have found that during middle age, sympathetic nerve activity (SNA) rises in the …
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The Identification of a Leptin Dependent Neural Pathway Regulating Adipose Tissue Innervation
… pathway spanning the central to peripheral nervous system that is responsible for regulating energy homeostasis in mice. Leptin deficient (ob/ob) mice accumulate excessive fat mass due to increased food intake, and decreased energy expenditure partially as a result of defective fat …
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Towards an understanding of the relationship between sleep and cardiovascular disease risk in adults of African descent living in a low socioeconomic status community
… and CVD risk in these same individuals, iii) to systematically review the literature on sleep and BP dipping in apparently healthy individuals, iv) to explore sex-specific associations between actigraphy-derived sleep characteristics, nocturnal BP and CVD risk among adults of African descent …