Sökning: "Efferent Pathways"

Visar resultat 1 - 5 av 8 avhandlingar innehållade orden Efferent Pathways.

  1. 1. Aspects of central integrative and efferent mechanisms in cardiovascular reflex control

    Författare :Göran Wennergren; Göteborgs universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Afferent Pathways; physiology; Animals; Arteries; physiology; Blood Circulation; Blood Pressure; Brain; physiology; Cats; Chemoreceptor Cells; physiology; Coronary Circulation; Coronary Vessels; physiology; Efferent Pathways; physiology; Electric Stimulation; Female; Heart; innervation; physiology; Heart Rate; Hypothalamus; physiology; Male; Pressoreceptors; physiology; Reflex; Sympathetic Nervous System; physiology; Ventricular Function;

    Sammanfattning : .... LÄS MER

  3. 2. Aspects of Regulation of GFR and Tubular Function in the Diabetic Kidney : Roles of Adenosine, Nitric Oxide and Oxidative Stress

    Författare :Patrik Persson; Fredrik Palm; Peter Hansell; Bengt Rippe; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; diabetes; diabetic nephropathy; glomerular filtration rate; renal blood flow; insulin; renal hemodynamics; micropuncture; oxygen; NADPH-oxidase; apocynin; streptozotocin; l-arginine; CGS21680; rats; mice; Physiology; Fysiologi; Medical Science; Medicinsk vetenskap;

    Sammanfattning : Diabetic nephropathy is the main cause for initiation of renal replacement therapy and early symptoms in patients include increased glomerular filtration rate (GFR), decreased oxygen tension and albuminuria, followed by a progressive decline in GFR and loss of kidney function. Experimental models of diabetes display increased GFR, decreased tissue oxygenation and nitric oxide bioavailability. LÄS MER

  4. 3. Neuro-immune communication: role of the vagus nerve : an electrophysiological study

    Författare :Violeta Bucinskaite; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :cholecystokinin; CCKA; CCKB; cytokines; IL-1[beta]; illness; nerve activity; NIDDM; OLETF; the vagus; vagotomy;

    Sammanfattning : Defence mechanisms involve close interactions between the nervous and immune systems following an immune challenge. The vagal pathways which modulate major visceral functions under normal conditions are also important neural pathways for the transmission of information on peripheral conditions to the CNS. LÄS MER

  5. 4. Investigations of neural attractor dynamics in human visual awareness

    Författare :David N. Silverstein; Pawel Herman; Martin Ingvar; Karl Friston; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; attractor dynamics; visual awareness; visual perception; visual attention; attentional blink; backward masking; gliomas; brain tumor; white matter; cell assemblies; neocortical model; threat response; fear signaling; amygdala; Biological Physics; Biologisk fysik; Computer Science; Datalogi; Tillämpad matematik och beräkningsmatematik; Applied and Computational Mathematics;

    Sammanfattning : What we see, how we see it and what emotions may arise from stimuli has long been studied by philosophers, psychologists, medical doctors and neuroscientists. This thesis work investigates a particular view on the possible dynamics, utilizing computational models of spiking neural attractor networks. LÄS MER

  7. 5. Factors Contributing to Detrusor Overactivity - Obstruction, Hypertrophy and Afferent Nerve Stimulation

    Författare :Annette Schröder; Avdelningen för klinisk kemi och farmakologi; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Pharmacological sciences; pharmacy; toxicology; Farmakologi; farmakognosi; farmaci; toxikologi; knockout; mice; estrogen receptor; EP1 receptor; prostaglandin; rat; endothelin; detrusor overactivity; rabbit; smooth muscle; bladder outlet obstruction; hypertrophy; pharmacognosy;

    Sammanfattning : The consequences of bladder outlet obstruction (BOO) with respect to detrusor hypertrophy, structural and functional changes, and obstruction-induced detrusor overactivity were investigated in vivo and in vitro utilizing various animal models. Possible pathophysiological pathways and therapeutic approaches were tested by drug treatment and the use of knockout models. LÄS MER