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PMID |
Sentence |
| 1 |
2236972
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The rats showed the following alterations after PA injection: a) a rise in serum angiotensin converting enzyme activity (ACEA) and plasma aldosterone (PAldo) at day 1; b) a rise in urinary aldosterone (UAaldoV), azotemia and sodium retention at day 2; c) massive proteinuria (UProt) and decrease in plasma angiotensinogen concentration (PAC) at day 4; d) increases in plasma renin activity (PRA), plasma renin concentration (PRC) and serum creatinine as well as hypoproteinemia, hypercholesterolemia, hypertriglyceridemia, ascitis and edema at day 5; e) increase in urine volume at day 6.
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| 2 |
2236972
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These data suggest that: a) sodium retention was not a consequence of proteinuria or hypoproteinemia; b) sodium retention seems non-related to renin secretion, but may be partially mediated by a fall in glomerular filtration rate or by an increased tubular resabsorption secondary to other factors; c) the increase in PAldo, UAldoV and ACEA are non-related to renin secretion: all occurred before PRA rose; d) water retention, increase in PRA and PRC, hypercholesterolemia and hypertriglyceridemia are secondary to the hypoproteinemia.
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| 3 |
2236972
|
The rats showed the following alterations after PA injection: a) a rise in serum angiotensin converting enzyme activity (ACEA) and plasma aldosterone (PAldo) at day 1; b) a rise in urinary aldosterone (UAaldoV), azotemia and sodium retention at day 2; c) massive proteinuria (UProt) and decrease in plasma angiotensinogen concentration (PAC) at day 4; d) increases in plasma renin activity (PRA), plasma renin concentration (PRC) and serum creatinine as well as hypoproteinemia, hypercholesterolemia, hypertriglyceridemia, ascitis and edema at day 5; e) increase in urine volume at day 6.
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| 4 |
2236972
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These data suggest that: a) sodium retention was not a consequence of proteinuria or hypoproteinemia; b) sodium retention seems non-related to renin secretion, but may be partially mediated by a fall in glomerular filtration rate or by an increased tubular resabsorption secondary to other factors; c) the increase in PAldo, UAldoV and ACEA are non-related to renin secretion: all occurred before PRA rose; d) water retention, increase in PRA and PRC, hypercholesterolemia and hypertriglyceridemia are secondary to the hypoproteinemia.
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| 5 |
3097950
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Angiotensin II, an inhibitor of renin release, depolarizes JG cells reversibly.
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| 6 |
3515047
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In addition, renin release from this preparation can be stimulated in a typical manner by isoproterenol and inhibited by angiotensin II, indicating that the receptors controling renin release and the secretory mechanism itself are still intact.
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| 7 |
3515047
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Inhibitors of renin secretion, e.g. angiotensin II, depolarize both cell types, whereas stimulators such as isoproterenol do not change the membrane potential.
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| 8 |
3515047
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In addition, renin release from this preparation can be stimulated in a typical manner by isoproterenol and inhibited by angiotensin II, indicating that the receptors controling renin release and the secretory mechanism itself are still intact.
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| 9 |
3515047
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Inhibitors of renin secretion, e.g. angiotensin II, depolarize both cell types, whereas stimulators such as isoproterenol do not change the membrane potential.
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| 10 |
9176840
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Mouse glomerular epithelial cells in culture with features of podocytes in vivo express aminopeptidase A and angiotensinogen but not other components of the renin-angiotensin system.
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| 11 |
9176840
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By indirect immunofluorescence, the cells were positive for cytokeratin, vimentin, desmin, and the ZO-1 protein, a component of the tight junction complex.
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| 12 |
9176840
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The mRNA expression of several components of the renin-angiotensin system was also examined, and some factors indirectly coupled to the renin-angiotensin system component angiotensin II in this podocytic culture by RT-PCR analysis. mRNA Expression for the angiotensin II degrading hydrolase aminopeptidase A and angiotensinogen was found, but this was not found for any other component of this system, such as renin, angiotensin-converting enzyme, or the angiotensin II receptors AT1a, AT1b, and AT2.
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| 13 |
9176840
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In addition, expression of the growth factors transforming growth factor-beta and interleukin-7, and the extracellular matrix components fibronectin, laminin B2, perlecan, and collagen IV alpha 1, was observed.
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| 14 |
9176840
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Mouse glomerular epithelial cells in culture with features of podocytes in vivo express aminopeptidase A and angiotensinogen but not other components of the renin-angiotensin system.
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| 15 |
9176840
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By indirect immunofluorescence, the cells were positive for cytokeratin, vimentin, desmin, and the ZO-1 protein, a component of the tight junction complex.
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| 16 |
9176840
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The mRNA expression of several components of the renin-angiotensin system was also examined, and some factors indirectly coupled to the renin-angiotensin system component angiotensin II in this podocytic culture by RT-PCR analysis. mRNA Expression for the angiotensin II degrading hydrolase aminopeptidase A and angiotensinogen was found, but this was not found for any other component of this system, such as renin, angiotensin-converting enzyme, or the angiotensin II receptors AT1a, AT1b, and AT2.
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| 17 |
9176840
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In addition, expression of the growth factors transforming growth factor-beta and interleukin-7, and the extracellular matrix components fibronectin, laminin B2, perlecan, and collagen IV alpha 1, was observed.
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| 18 |
9291188
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During glomerular injury, inhibition of the renin-angiotensin system by angiotensin-converting-enzyme inhibitors reduces proteinuria and retards the progression to end-stage renal insufficiency.
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| 19 |
9291188
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The AT1 receptor antagonist losartan inhibited Ang II-mediated [Ca2+]i increase with an IC50 of about 0.3 nmol/liter (N = 35).
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| 20 |
9291188
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The effect of Ang II is mediated via an AT1 receptor.
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| 21 |
11174028
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Renal and vascular injury induced by exogenous angiotensin II is AT1 receptor-dependent.
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| 22 |
11174028
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We also examined the role of the local renin-angiotensin system (RAS) by examining the expression of angiotensin-converting enzyme (ACE) and the effect of treatment with the ACE inhibitor, ramipril.
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| 23 |
11174028
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Renal injury was manifested by proteinuria, glomerular phenotypic changes (mesangial expression of alpha-actin and podocyte expression of desmin), and tubulointerstitial injury with the tubular upregulation of the macrophage-adhesive protein, osteopontin, the interstitial accumulation of macrophages and myofibroblasts, and the deposition of collagen types III and IV.
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| 24 |
11174028
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Ang II infusion decreased AT1 receptor number in the renal interstitium but not in glomeruli.
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| 25 |
11174028
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Ang II infusion was also associated with an increase in ACE protein in both the proximal tubular brush border as well as at interstitial sites of injury, but despite evidence for activation of the local RAS, treatment with ramipril was without effect.
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| 26 |
11174028
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These studies demonstrate that the renal and vascular injury induced by Ang II infusion is mediated by the AT1 receptor despite downregulation of the receptor in the interstitium.
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