Sökning: "afferent arteriole"

Visar resultat 1 - 5 av 8 avhandlingar innehållade orden afferent arteriole.

1. 1. Calcium Responses in the Renal Afferent Arteriole to Angiotensin II and Norepinephrine Stimulation

   Författare :Mark Kornfeld; Klinisk neurofysiologi; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; norepinephrine; angiotensin II; smooth muscle cells; afferent arteriole; calcium; Kidney; renal hemodynamics; Physiology; Fysiologi;

   Sammanfattning : Studies were performed to investigate the influence of the vasoconstrictors angiotensin II (AII) and norepinephrine (NE) on calcium metabolism in smooth muscle cells of afferent arterioles. Fura-2 and image analysis techniques were used to evaluate calcium responses in the proximal and distal parts of afferent arterioles with attached glomeruli. LÄS MER

3. 2. Local Purinergic Control of Arteriolar Reactivity in Pancreatic Islets and Renal Glomeruli

   Författare :Xiang Gao; Leif Jansson; Olle Hellberg; Uppsala universitet; []
   Nyckelord :afferent arteriole; islet arteriole; adenosine; A1 receptor; ATP; P2Y receptor; microperfusion; angiotensin II; type 2 diabetes; hypertension; oxidative stress; nitric oxide; tubuloglomerular feedback;

   Sammanfattning : Local control of regional blood flow is exerted mainly through the arterioles. An adequate minute-to-minute regulation of blood perfusion of the kidney and the pancreas is obtained by the modulation of arteriolar reactivity, which will influence the organ function. LÄS MER

4. 3. Interaction between Adenosine and Angiotensin II in Renal Afferent Arterioles of Mice

   Författare :Enyin Lai; A. Erik G. Persson; Göran Bergström; Uppsala universitet; []
   Nyckelord :Physiology; adenosine; angiotensin II; afferent arteriole; calcium; nitric oxide; microperfusion; tubuloglomerular feedback; Fysiologi;

   Sammanfattning : Renal arterioles represent the most important effecter site in the control of renal perfusion and filtration. Adenosine (Ado), angiotensin II (Ang II) and nitric oxide (NO) interact in modulating arteriolar tone. The present work investigates the mechanism of this interaction. LÄS MER

5. 4. Endothelial Nitric Oxide in the Control of Glomerular Hemodynamics

   Författare :János Pittner; Daniel H. Casellas; Uppsala universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Cell biology; Juxtamedullary nephron; afferent arteriole; nitric oxide; endothelial calcium; diaminofluoresceins; fura-2; autoregulation; shear stress; flow; videomicroscopy; Cellbiologi; Cell biology; Cellbiologi; Physiology; fysiologi;

   Sammanfattning : The afferent arteriole of the kidney is a unique vascular segment: it is the effector of the renal hemodynamic autoregulation. The use of the isolated, perfused juxtamedullary nephron preparation makes it possible to visualize the afferent arteriole while preserving its tissue surroundings and the functional integrity of the nephron. LÄS MER

7. 5. Interaction between contractile stimuli on tha isolated perfused afferent arteriole of the mouse kidney

   Författare :Michael Hultström; Uppsala universitet; []
   Nyckelord :;

   Sammanfattning : .... LÄS MER