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Increased urinary protein excretion in the “normal” range is associated with increased renin-angiotensin system activity
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| Zeitschriftentitel: | American Journal of Physiology-Renal Physiology |
|---|---|
| Personen und Körperschaften: | , , , , , , |
| In: | American Journal of Physiology-Renal Physiology, 302, 2012, 5, S. F526-F532 |
| Format: | E-Article |
| Sprache: | Englisch |
| veröffentlicht: |
American Physiological Society
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| Schlagwörter: |
| author_facet |
Nicholl, David D. M. Hemmelgarn, Brenda R. Turin, Tanvir C. MacRae, Jennifer M. Muruve, Daniel A. Sola, Darlene Y. Ahmed, Sofia B. Nicholl, David D. M. Hemmelgarn, Brenda R. Turin, Tanvir C. MacRae, Jennifer M. Muruve, Daniel A. Sola, Darlene Y. Ahmed, Sofia B. |
|---|---|
| author |
Nicholl, David D. M. Hemmelgarn, Brenda R. Turin, Tanvir C. MacRae, Jennifer M. Muruve, Daniel A. Sola, Darlene Y. Ahmed, Sofia B. |
| spellingShingle |
Nicholl, David D. M. Hemmelgarn, Brenda R. Turin, Tanvir C. MacRae, Jennifer M. Muruve, Daniel A. Sola, Darlene Y. Ahmed, Sofia B. American Journal of Physiology-Renal Physiology Increased urinary protein excretion in the “normal” range is associated with increased renin-angiotensin system activity Physiology |
| author_sort |
nicholl, david d. m. |
| spelling |
Nicholl, David D. M. Hemmelgarn, Brenda R. Turin, Tanvir C. MacRae, Jennifer M. Muruve, Daniel A. Sola, Darlene Y. Ahmed, Sofia B. 1931-857X 1522-1466 American Physiological Society Physiology http://dx.doi.org/10.1152/ajprenal.00458.2011 <jats:p> Increased levels of albuminuria and proteinuria, both linked to augmented renin-angiotensin system (RAS) activity, are associated with adverse kidney and cardiovascular events. However, the relationship between variations in urinary albumin excretion (UAE) and total protein excretion (UTPE) in the normal range and RAS activity is unclear. We examined the association between UAE and UTPE and the hemodynamic response to angiotensin II (ANG II) challenge, a well-accepted indirect measure of RAS activity, in healthy individuals with normal UAE and UTPE. Forty subjects (15 men, 25 women; age 38 ± 2 yr; UAE, 3.32 ± 0.55 mg/day; UTPE, 56.8 ± 3.6 mg/day) were studied in high-salt balance. Blood pressure (BP), arterial stiffness determined by applanation tonometry, and circulating RAS components were measured at baseline and in response to graded ANG II infusion. The primary outcome was the BP response to ANG II challenge at 30 and 60 min. UAE was associated with a blunted diastolic BP response to ANG II infusion (30 min, P = 0.005; 60 min, P = 0.17), a relationship which remained even after adjustment (30 min, P < 0.001; 60 min, P = 0.035). Similar results were observed with UTPE (30 min, P = 0.031; 60 min, P = 0.001), even after multivariate analysis (30 min, P = 0.008; 60 min, P = 0.001). Neither UAE nor UTPE was associated with systolic BP, circulating RAS components, or arterial stiffness responses to ANG II challenge. Among healthy individuals with UAE and UTPE in the normal range, increased levels of these measures were independently associated with a blunted diastolic BP response to ANG II, indicating increased vascular RAS activity, which is known to be deleterious to both renal and cardiac function. </jats:p> Increased urinary protein excretion in the “normal” range is associated with increased renin-angiotensin system activity American Journal of Physiology-Renal Physiology |
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| title |
Increased urinary protein excretion in the “normal” range is associated with increased renin-angiotensin system activity |
| title_unstemmed |
Increased urinary protein excretion in the “normal” range is associated with increased renin-angiotensin system activity |
| title_full |
Increased urinary protein excretion in the “normal” range is associated with increased renin-angiotensin system activity |
| title_fullStr |
Increased urinary protein excretion in the “normal” range is associated with increased renin-angiotensin system activity |
| title_full_unstemmed |
Increased urinary protein excretion in the “normal” range is associated with increased renin-angiotensin system activity |
| title_short |
Increased urinary protein excretion in the “normal” range is associated with increased renin-angiotensin system activity |
| title_sort |
increased urinary protein excretion in the “normal” range is associated with increased renin-angiotensin system activity |
| topic |
Physiology |
| url |
http://dx.doi.org/10.1152/ajprenal.00458.2011 |
| publishDate |
2012 |
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F526-F532 |
| description |
<jats:p> Increased levels of albuminuria and proteinuria, both linked to augmented renin-angiotensin system (RAS) activity, are associated with adverse kidney and cardiovascular events. However, the relationship between variations in urinary albumin excretion (UAE) and total protein excretion (UTPE) in the normal range and RAS activity is unclear. We examined the association between UAE and UTPE and the hemodynamic response to angiotensin II (ANG II) challenge, a well-accepted indirect measure of RAS activity, in healthy individuals with normal UAE and UTPE. Forty subjects (15 men, 25 women; age 38 ± 2 yr; UAE, 3.32 ± 0.55 mg/day; UTPE, 56.8 ± 3.6 mg/day) were studied in high-salt balance. Blood pressure (BP), arterial stiffness determined by applanation tonometry, and circulating RAS components were measured at baseline and in response to graded ANG II infusion. The primary outcome was the BP response to ANG II challenge at 30 and 60 min. UAE was associated with a blunted diastolic BP response to ANG II infusion (30 min, P = 0.005; 60 min, P = 0.17), a relationship which remained even after adjustment (30 min, P < 0.001; 60 min, P = 0.035). Similar results were observed with UTPE (30 min, P = 0.031; 60 min, P = 0.001), even after multivariate analysis (30 min, P = 0.008; 60 min, P = 0.001). Neither UAE nor UTPE was associated with systolic BP, circulating RAS components, or arterial stiffness responses to ANG II challenge. Among healthy individuals with UAE and UTPE in the normal range, increased levels of these measures were independently associated with a blunted diastolic BP response to ANG II, indicating increased vascular RAS activity, which is known to be deleterious to both renal and cardiac function. </jats:p> |
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| author | Nicholl, David D. M., Hemmelgarn, Brenda R., Turin, Tanvir C., MacRae, Jennifer M., Muruve, Daniel A., Sola, Darlene Y., Ahmed, Sofia B. |
| author_facet | Nicholl, David D. M., Hemmelgarn, Brenda R., Turin, Tanvir C., MacRae, Jennifer M., Muruve, Daniel A., Sola, Darlene Y., Ahmed, Sofia B., Nicholl, David D. M., Hemmelgarn, Brenda R., Turin, Tanvir C., MacRae, Jennifer M., Muruve, Daniel A., Sola, Darlene Y., Ahmed, Sofia B. |
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| description | <jats:p> Increased levels of albuminuria and proteinuria, both linked to augmented renin-angiotensin system (RAS) activity, are associated with adverse kidney and cardiovascular events. However, the relationship between variations in urinary albumin excretion (UAE) and total protein excretion (UTPE) in the normal range and RAS activity is unclear. We examined the association between UAE and UTPE and the hemodynamic response to angiotensin II (ANG II) challenge, a well-accepted indirect measure of RAS activity, in healthy individuals with normal UAE and UTPE. Forty subjects (15 men, 25 women; age 38 ± 2 yr; UAE, 3.32 ± 0.55 mg/day; UTPE, 56.8 ± 3.6 mg/day) were studied in high-salt balance. Blood pressure (BP), arterial stiffness determined by applanation tonometry, and circulating RAS components were measured at baseline and in response to graded ANG II infusion. The primary outcome was the BP response to ANG II challenge at 30 and 60 min. UAE was associated with a blunted diastolic BP response to ANG II infusion (30 min, P = 0.005; 60 min, P = 0.17), a relationship which remained even after adjustment (30 min, P < 0.001; 60 min, P = 0.035). Similar results were observed with UTPE (30 min, P = 0.031; 60 min, P = 0.001), even after multivariate analysis (30 min, P = 0.008; 60 min, P = 0.001). Neither UAE nor UTPE was associated with systolic BP, circulating RAS components, or arterial stiffness responses to ANG II challenge. Among healthy individuals with UAE and UTPE in the normal range, increased levels of these measures were independently associated with a blunted diastolic BP response to ANG II, indicating increased vascular RAS activity, which is known to be deleterious to both renal and cardiac function. </jats:p> |
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| spelling | Nicholl, David D. M. Hemmelgarn, Brenda R. Turin, Tanvir C. MacRae, Jennifer M. Muruve, Daniel A. Sola, Darlene Y. Ahmed, Sofia B. 1931-857X 1522-1466 American Physiological Society Physiology http://dx.doi.org/10.1152/ajprenal.00458.2011 <jats:p> Increased levels of albuminuria and proteinuria, both linked to augmented renin-angiotensin system (RAS) activity, are associated with adverse kidney and cardiovascular events. However, the relationship between variations in urinary albumin excretion (UAE) and total protein excretion (UTPE) in the normal range and RAS activity is unclear. We examined the association between UAE and UTPE and the hemodynamic response to angiotensin II (ANG II) challenge, a well-accepted indirect measure of RAS activity, in healthy individuals with normal UAE and UTPE. Forty subjects (15 men, 25 women; age 38 ± 2 yr; UAE, 3.32 ± 0.55 mg/day; UTPE, 56.8 ± 3.6 mg/day) were studied in high-salt balance. Blood pressure (BP), arterial stiffness determined by applanation tonometry, and circulating RAS components were measured at baseline and in response to graded ANG II infusion. The primary outcome was the BP response to ANG II challenge at 30 and 60 min. UAE was associated with a blunted diastolic BP response to ANG II infusion (30 min, P = 0.005; 60 min, P = 0.17), a relationship which remained even after adjustment (30 min, P < 0.001; 60 min, P = 0.035). Similar results were observed with UTPE (30 min, P = 0.031; 60 min, P = 0.001), even after multivariate analysis (30 min, P = 0.008; 60 min, P = 0.001). Neither UAE nor UTPE was associated with systolic BP, circulating RAS components, or arterial stiffness responses to ANG II challenge. Among healthy individuals with UAE and UTPE in the normal range, increased levels of these measures were independently associated with a blunted diastolic BP response to ANG II, indicating increased vascular RAS activity, which is known to be deleterious to both renal and cardiac function. </jats:p> Increased urinary protein excretion in the “normal” range is associated with increased renin-angiotensin system activity American Journal of Physiology-Renal Physiology |
| spellingShingle | Nicholl, David D. M., Hemmelgarn, Brenda R., Turin, Tanvir C., MacRae, Jennifer M., Muruve, Daniel A., Sola, Darlene Y., Ahmed, Sofia B., American Journal of Physiology-Renal Physiology, Increased urinary protein excretion in the “normal” range is associated with increased renin-angiotensin system activity, Physiology |
| title | Increased urinary protein excretion in the “normal” range is associated with increased renin-angiotensin system activity |
| title_full | Increased urinary protein excretion in the “normal” range is associated with increased renin-angiotensin system activity |
| title_fullStr | Increased urinary protein excretion in the “normal” range is associated with increased renin-angiotensin system activity |
| title_full_unstemmed | Increased urinary protein excretion in the “normal” range is associated with increased renin-angiotensin system activity |
| title_short | Increased urinary protein excretion in the “normal” range is associated with increased renin-angiotensin system activity |
| title_sort | increased urinary protein excretion in the “normal” range is associated with increased renin-angiotensin system activity |
| title_unstemmed | Increased urinary protein excretion in the “normal” range is associated with increased renin-angiotensin system activity |
| topic | Physiology |
| url | http://dx.doi.org/10.1152/ajprenal.00458.2011 |