Search for dissertations about: "5HT"

Showing result 1 - 5 of 15 swedish dissertations containing the word 5HT.

  1. 1. Gut Feelings - From Brain to Gut and from Lumen to Gut

    Author : Xiaowen Cheng; Neurogastroenterologi; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Enteric nervous system; cerebral ischemia; galectine-3; tuft cell; CGRP; CCK; GLP-1; 5HT; PYY;

    Abstract : Part 1: From Brain to GutThe brain is an organ with a high energy requirement. To meet this demand, the brain needs a continuous and well-regulated blood supply. In situations where the brain, or parts of the brain, does not receive sufficient blood flow injury arise. READ MORE

  2. 2. Tissue remodelling in pulmonary fibrosis linked to 5-HT2 receptor activation

    Author : Anna Löfdahl; Lungbiologi; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Serotonin 5HT ; Serotonin class 2 receptor antagonist; Fibroblast; Pulmonary fibrosis; Extracellular matrix ECM ;

    Abstract : After an injury, an immediate reparative response is triggered to replace the damaged tissue, however, in fibrosis, cells remain active despite wound resolution causing a steady build-up of fibrotic tissue. In pulmonary fibrosis,there is a constant regeneration and remodelling of lung tissue where the thin architecture of alveoli become thickened, hampering efficient diffusion of oxygen, as seen in diseases like idiopathic pulmonary fibrosis (IPF). READ MORE

  3. 3. Spinal cord grafts : interaction with cografts and effects of trophic factors

    Author : Katarzyna Trok; Karolinska Institutet; Karolinska Institutet; []
    Keywords : cord injury; spinal cord transplants; regeneration; GDNF; neurotrophins; CNTF; 5HT; immunohistochemistryKatarzyna Trok; 1996ISBN 91-6;

    Abstract : Spinal cord injury is common in the modern society, often afflicts young individuals, and often has devastating consequences. The present work studies possibilities to obtain better conditions for regeneration of the transected spinal cord in rats, conditions under which spinal cord grafts are able to establish structural and functional connections with "natural" targets, and effects of a series of neurotrophic factors on spinal cord graft survival and growth. READ MORE

  4. 4. Spinal motoneurones and the bulbospinal serotonininergic system in aged rats with behavioral deficits

    Author : Hans Johnson; Karolinska Institutet; Karolinska Institutet; []
    Keywords : aging; behavior; immunohistochemistry; in situ hybridisation; motoneuron; CGRP; axotorny; GAP-43; neurotrophin receptors; degeneration; axon dystrophy; 5HT TRH; SP; 5HLkA; AADC; serotonintransporter protein; fluoxetine; L-5-HTP;

    Abstract : The expression of neuropeptides, growth-related proteins and neurotrophin receptors were studied in motoneurons of young adult rats and in aged rats with symptoms of neuromuscular incapacities. Also studied were aging-related changes in the descending serotoninergic (5HT) bulbospinal system which constitutes a major afferent pathway to spinal motoneurons. READ MORE

  5. 5. Cyclic guanosine 3', 5'-monophosphate : studies on synthesis and efflux from hepatocytes, liver slices and cerebellar slices and on serotonin-mediated cGMP synthesis in human platelets

    Author : Marie-Louise Tjörnhammar; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : The present study established the existence of a carrier mediated transport of 3'5' cGMP from rat liver slices, hepatocytes and cerebellar slices in which the cellular levels of 3'5' cGMP were elevated by application of appropriate stimuli and inhibitors of the 3'5' cyclic nucleotide phosphodiesterase. The carrier is specific for 3'5' cGMP as opposed to 3'5' cAMP. READ MORE