Sökning: "angiotensin"

Visar resultat 11 - 15 av 193 avhandlingar innehållade ordet angiotensin.

1. 11. Studies on molecular mechanisms in calcium signaling and cellular energy consumption

   Författare :Kalaiselvan Krishnan; Hjalmar Brismar; Anders Tengholm; KTH; []
   Nyckelord :ca2 signaling; ATP; PercevalHR; NKA; diabetes; Angiotensin; Biological Physics; Biologisk fysik;

   Sammanfattning : Ion signaling plays fundamental role in cell survival. Na+ and Ca2+ are critical players in ion signaling. Cells spend the major amount of energy to maintain and regulate Na+ and Ca2+ gradients across the cell membrane. Any disruption in cellular energy consumption by plasma membrane ATPases affects ion signaling and vice versa. LÄS MER

3. 12. Mesentric hemodynamics and effects of angiotensin II during circulatory stress

   Författare :Mats Laesser; Göteborgs universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Renin-angiontensin system; angiotensin II; intestines; hemodynamics; perfusion; hemorrhage; hypovolemia; endotoxemia;

   Sammanfattning : Mesenteric hypoperfusion and ischemia is considered to be deleterious to the intestinal mucosal barrier function and it is suggested that the renin-angiotensin system plays a pivotal role in the regulation of mesenteric perfusion.The present thesis examines the effects of the specific AT1 receptor blocker candesartan on mesenteric hemodynamics during acute hypovolemia and endotoxinemia. LÄS MER

4. 13. The oesophageal mucosa in reflux disease - endoscopic appearance and tissue structure

   Författare :Anders Edebo; Göteborgs universitet; []
   Nyckelord :oesophagus; reflux; angiotensin; epithelium; endoscopy;

   Sammanfattning : Gastro-oesophageal reflux disease (GORD) is very common in especially the western world. The cardinal symptoms are heartburn or regurgitations and are caused by the reflux of noxious compounds from the stomach/duodenum to the oesophagus. LÄS MER

5. 14. Vascular mechanisms in ovulation

   Författare :Kenrokuro Mitsube; Göteborgs universitet; []
   Nyckelord :angiotensin; blood flow; nitric oxide; ovary; ovulation; permeability; permselectivity; rat.;

   Sammanfattning : Ovulation is a unique biological process, which involves the degradation and rupture of healthy tissue of the ovarian follicle and the extrusion of the oocyte. This process is initiated by the preovulatory surge of luteinizing hormone (LH), which leads to the up-regulation of various intraovarian mediators. LÄS MER

7. 15. Regulatory Functions of the Juxtaglomerular Apparatus

   Författare :Ruisheng Liu; Ole Skott; Uppsala universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Cell biology; mesangial; desensitization; nitric oxide; calcium; P2Y receptor; macula densa; NaCl; luminal. microperfusion; angiotensin; Cellbiologi; Cell biology; Cellbiologi; Medicine; medicin;

   Sammanfattning : The tubuloglomerular feedback mechanism is an important regulator in the juxtaglomerular apparatus and it detects flow dependent alterations in luminal NaCl concentration ([NaCl]) at the macula densa (MD) cell site via a Na+-K+-2Cl cotransporter. Signals are sent by the MD to adjust the afferent arteriole tone and altering release of renin. LÄS MER