| Inflammation and Hypertension: The Interplay of Interleukin-6, Dietary Sodium, and the Renin-Angiotensin System in Humans. | |
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MedLine Citation:
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PMID: 21716327 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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BackgroundPrior evidence suggests a link between inflammation and hypertension. Interleukin-6 (IL-6) has been implicated in animal studies to play an important role in angiotensin II (ANGII)-mediated hypertension. The aim of this study was to examine the relationship of IL-6 and renin-angiotensin system (RAS) activity in human hypertension.MethodsData from 385 hypertensives and 196 normotensives are included in this report. Blood pressure and laboratory evaluation were performed on liberal and low sodium diets. IL-6 response to an ANGII infusion was evaluated to assess the effect of acute RAS activation.ResultsHypertensives had higher baseline IL-6 and C-reactive protein (CRP) compared with normotensives on both diets. IL-6 increased in response to ANGII in hypertensives and normotensives (28% in hypertensives, 31% in normotensives, P ≤ 0.001 for change from baseline). In the setting of RAS activation by a low salt diet, multivariate regression analysis adjusted for age, body mass index (BMI), gender, race, and hypertension status demonstrated an independent positive association of plasma renin activity (PRA) with CRP (β = 0.199, P < 0.001). There was no significant difference in IL-6 or CRP levels between liberal and low sodium diets.ConclusionThese findings confirm an association between hypertension and inflammation and provide human data supporting previous evidence from animal studies that IL-6 plays a role in ANGII-mediated hypertension. Notably, compared to levels on a liberal sodium diet, neither IL-6 nor CRP were higher with activation of the RAS by a low salt diet indicating that a low sodium diet is not inflammatory despite increased RAS activity.American Journal of Hypertension (2011). doi:10.1038/ajh.2011.113. |
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Authors:
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Bindu Chamarthi; Gordon H Williams; Vincent Ricchiuti; Nadarajah Srikumar; Paul N Hopkins; James M Luther; Xavier Jeunemaitre; Abraham Thomas |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-6-30 |
Journal Detail:
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Title: American journal of hypertension Volume: - ISSN: 1941-7225 ISO Abbreviation: - Publication Date: 2011 Jun |
Date Detail:
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Created Date: 2011-6-30 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8803676 Medline TA: Am J Hypertens Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Affiliation:
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Division of Endocrinology, Diabetes and Hypertension, Brigham and Women's and Harvard Medical School, Boston, Massachusetts, USA. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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