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Dietary amino acids and the risk of hypertension in a Dutch older population: the Rotterdam Study.
MedLine Citation:
PMID:  23283504     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
BACKGROUND: Inverse associations between dietary protein and hypertension have been reported, which may be attributed to specific amino acids. OBJECTIVE: We examined whether the intake of glutamic acid, arginine, cysteine, lysine, or tyrosine was associated with blood pressure (BP) levels (n = 3086) and incident hypertension (n = 1810) in the Rotterdam Study. DESIGN: We calculated BP levels in quartiles of amino acid intake as a percentage of total protein intake (% of protein) with adjustment for age, sex, BMI, smoking, alcohol intake, education, and dietary factors. Subsequently, we used Cox proportional models that included the same confounders to evaluate the associations between specific amino acid intake and hypertension incidence. RESULTS: Glutamic acid contributed most to protein intake (21% of protein), whereas lysine provided 7%, arginine 5%, tyrosine 4%, and cysteine 1.5%. A higher intake of tyrosine (∼0.3% of protein) was significantly related to a 2.4 mm Hg lower systolic BP (P-trend = 0.05) but not to diastolic BP (P = 0.35). The other amino acids were not significantly associated with BP levels in a cross-sectional analysis. During 6 y of follow-up (7292 person-years), 873 cases of hypertension developed. None of the amino acids were significantly associated with incident hypertension (HR: 0.81-1.18; P-trend > 0.2). CONCLUSION: Our data do not suggest a major role for glutamic acid, arginine, lysine, tyrosine, or cysteine intake (as % of of protein intake) in determining population BP or risk of hypertension.
Authors:
Wieke Altorf-van der Kuil; Marielle F Engberink; Melissa De Neve; Frank Ja van Rooij; Albert Hofman; Pieter Van't Veer; Jacqueline Cm Witteman; Oscar H Franco; Johanna M Geleijnse
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2013-1-2
Journal Detail:
Title:  The American journal of clinical nutrition     Volume:  -     ISSN:  1938-3207     ISO Abbreviation:  Am. J. Clin. Nutr.     Publication Date:  2013 Jan 
Date Detail:
Created Date:  2013-1-3     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0376027     Medline TA:  Am J Clin Nutr     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
Top Institute Food and Nutrition, Wageningen, Netherlands.
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