Plasma renin activity (PRA) and aldosterone (PA) in patients with chronic glomerulonephritis (GN) and hypertension.
Patients with chronic glomerulonephritis and mild hypertension show a consistent behaviour in their renin-aldosterone-system. There is a close correlation between the elevation of mean blood pressure and destruction of glomeruli. No correlation has been found between renin values and the degree of hypertension. Thus the cuase of mild hypertension occurring in the early stages of chronic GN remains to be elucidated. Normal PRA values in spite of hypertension and expansion of ECFV accompaning progression of chronic glomerulonephritis could be a sign of "relative hyperreninemia". Apparently various mechanisms are involved in the pathogenesis of renal hypertension. These include sodium retention, increased cardiac output. anemia, renin, aldosterone, prostaglandins, expanded plasma volume and peripheral vasoconstriction. These factors are more or less active in the different stages of hypertension and renal failure.
D000328:Adult; D000450:Aldosterone / Q000097:blood*; D005921:Glomerulonephritis / Q000097:blood*; D006801:Humans; D006977:Hypertension, Renal / Q000097:blood*; D008875:Middle Aged; D012083:Renin / Q000097:blood*; D012964:Sodium / Q000652:urine
D000450:Aldosterone; D012964:Sodium; D012083:Renin