Search for dissertations about: "Sympathetic"

Showing result 1 - 5 of 249 swedish dissertations containing the word Sympathetic.

2. 1. Laser Doppler Perfusion Monitoring and Imaging especially as regards testing for sympathetic nerve function

   Author : Carolin Freccero; Kirurgi; []
   Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Physiology; wavelength; sympathetic vasodilatation; sympathetic vasoconstriction; sympathetic nerve function; parasympathetic nerve function; laser Doppler perfusion imaging; laser Doppler perfusion monitoring; finger skin blood flow; fibre separation; contralateral cooling; Concentration; Fysiologi; Cardiovascular system; Kardiovaskulära systemet; Diagnostik; Diagnostics;

   Abstract : The operating principle of all laser Doppler methods is based on the fact that incident photons shift in wavelength when interacting with moving blood cells passing through the microvascular network. After photodetection and further signal processing, the recorded parameter can be considered an arbitrary measure of tissue blood flow, and this is referred to as ?perfusion?. READ MORE

4. 2. Modulation of serous salivary gland function by the sympathetic nervous system : a biochemical and ultrastructural study with special reference to β-adrenoceptor subtypes

   Author : Roger Henriksson; Umeå universitet; []
   Keywords : Rat parotid gland; guinea-pig submandibular gland; ß-adrenoceptor subtypes; sympathetic denervation; sympathetic superstimulation; amylase secretion; cyclic AMP; ultrastructural stereology;

   Abstract : The aim of the present investigation was to study the influence of the sympathetic nervous system and of various adrenoceptor agents on enzyme secretion and morphology in rat parotid and guinea-pig submandibular glands. Biochemical methods were combined with electron microscopical techniques. READ MORE

5. 3. Autonomic nervous system regulation in chronic neck-shoulder pain : Relations to physical activity and perceived stress

   Author : David Hallman; Eugene Lyskov; Bengt Arnetz; Ewa Wigaeus Tornqvist; Allan Toomingas; Uppsala universitet; []
   Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Autonomic imbalance; Daily physical activity; Trapezius myalgia; Treatment; Parasympathetic; Sympathetic;

   Abstract : Neck-shoulder pain (NSP) is a highly prevalent musculoskeletal disorder with unclear causes, and effective prevention and treatment require a further understanding of the underlying mechanisms. Aberrant autonomic nervous system (ANS) regulation is a hypothesized causal element in the development and maintenance of chronic muscle pain. READ MORE

6. 4. Zinc-enriched neurons in the spinal cord, cerebellum and peripheral sympathetic system

   Author : Zhan-You Wang; Göteborgs universitet; []
   Keywords : autometallography; axonal transport; confocal laser scanning microscopy; immuno-electron microscopy; immunofluorescence; inhibitory neurons; sympathetic neurons; synaptic vesicles; zinc ions; zinc transporter;

   Abstract : Zinc ions are abundant in the nervous system and are involved in many biological functions. Most zinc is tightly bound to macromolecules, whereas a small fraction of zinc exists in synaptic vesicles of the zinc-enriched (ZEN) neurons, and can be visualized using various histochemical techniques, including autometallography (AMG). READ MORE

7. 5. Sympathetic function in cardiac disorders.Upon cardio-renal sympathetic activity and effects of nitroglycerin in human heart failure

   Author : Magnus Petersson; Göteborgs universitet; []
   Keywords : heart failure; renovascular hypertension; sympathetic nervous system; noradrenaline; mortality; renal circulation; cardiovascular physiology; baroreflex; nitroglycerin;

   Abstract : This study explores pathophysiological mechanisms and prognostic implications of sympathetic activation in patients with atherosclerotic renovascular hypertension (RVH) and with chronic heart failure (CHF). Hitherto, it is unknown whether cardiac sympathetic activation is present in patients with RVH, the presence of which could relate to the increased cardiovascular mortality observed in this disorder. READ MORE