Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
2007-9-7
pubmed:abstractText
The purpose of the present study was to examine the role of the T-786C endothelial nitric oxide synthase (eNOS) gene polymorphism on changes in renal hemodynamics and blood pressure due to Na(+) loading. Twenty-eight older (63+/-1 years), moderately obese (39+/-2 % fat) hypertensives had their glomerular filtration rate (GFR), renal plasma flow (RPF), blood pressure (BP) and plasma nitric oxide (NO(x)) levels determined after eight days of low (20 mEq) and high (200 mEq) Na(+) diets. The two Na(+) diets were separated by a 1-week washout period. Subjects were genotyped for the eNOS-786 site and were grouped on whether they were homozygous or heterozygous for the C allele (TC+CC, n=13) or only homozygous for the T allele (TT, n=15). The TC+CC genotype group had a significantly greater increase in diastolic (P=0.021) and mean arterial (P=0.018) BP and a significant decline in both RPF (P=0.007) and GFR (P=0.029) compared to the TT genotype group with Na(+) loading. Furthermore, Na(+) loading resulted in a significant (P=0.036) increase in plasma NO(x) in the TT, but not in the TC+CC genotype group as well as a trend (P=0.051) for an increase in urine NO(x) in TC+CC, but not in the TT genotype group. The increase in BP during Na(+) loading in older hypertensives was associated with the eNOS genotype and may be related to changes in renal hemodynamics due to changes in NO metabolism.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0862-8408
pubmed:author
pubmed:issnType
Print
pubmed:volume
56
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
393-401
pubmed:dateRevised
2008-4-2
pubmed:meshHeading
pubmed-meshheading:16925467-Blood Pressure, pubmed-meshheading:16925467-Diet, Sodium-Restricted, pubmed-meshheading:16925467-Double-Blind Method, pubmed-meshheading:16925467-Female, pubmed-meshheading:16925467-Genetic Predisposition to Disease, pubmed-meshheading:16925467-Glomerular Filtration Rate, pubmed-meshheading:16925467-Heterozygote, pubmed-meshheading:16925467-Homozygote, pubmed-meshheading:16925467-Humans, pubmed-meshheading:16925467-Hypertension, pubmed-meshheading:16925467-Male, pubmed-meshheading:16925467-Middle Aged, pubmed-meshheading:16925467-Nitric Oxide, pubmed-meshheading:16925467-Nitric Oxide Synthase Type III, pubmed-meshheading:16925467-Phenotype, pubmed-meshheading:16925467-Pilot Projects, pubmed-meshheading:16925467-Polymorphism, Genetic, pubmed-meshheading:16925467-Renal Circulation, pubmed-meshheading:16925467-Severity of Illness Index, pubmed-meshheading:16925467-Sodium, pubmed-meshheading:16925467-Sodium Chloride, Dietary, pubmed-meshheading:16925467-Time Factors, pubmed-meshheading:16925467-Treatment Outcome
pubmed:year
2007
pubmed:articleTitle
A preliminary study on T-786C endothelial nitric oxide synthase gene and renal hemodynamic and blood pressure responses to dietary sodium.
pubmed:affiliation
University of Minnesota, Minneapolis, USA. denge001@umn.edu
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, Non-P.H.S., Randomized Controlled Trial, Research Support, Non-U.S. Gov't, Research Support, N.I.H., Extramural