Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1991-8-16
pubmed:abstractText
In order to eludicate possible mechanism(s) involved in the blood pressure reduction induced by potassium (K) supplementation, we studied the changes of BP and of some of its regulatory systems, including levels of urinary kallikrein (UKal)--an index of renal kallikrein production. Twenty-four untreated essential hypertensives, with a basal BP of 147/96 +/- 13/7 mmHg and normal renal function, received in crossover, double-blind, randomised fashion, 64 mmol KCl or placebo during two periods of 4 weeks each. At the 4th week of potassium supplementation systolic, diastolic and mean BPs decreased by 6.3 +/- 2 (P less than 0.01), 3.0 +/- 2 and 4.1 +/- 2 (P less than 0.05) mmHg respectively for the supine position, and 5.0 +/- 2, 4.0 +/- 2 (P less than 0.05) and 4.0 +/- 1 (P less than 0.05) mmHg for the standing position. Urinary potassium (K) increased from 55 +/- 4 to 123 +/- 6 mmol/24 hours (P less than 0.001) and UKal from 692 +/- 69 to 1052 +/- 141 mU/24 hours (P less than 0.01). Serum K rose from 3.8 +/- 0.1 mEq/l to 4.1 +/- 0.1 mmol/l (P less than 0.001) and PRA from 0.77 +/- 0.12 to 0.99 +/- 0.14 ng/ml/h (P less than 0.05). Correlations were observed between UKal and urinary K (r = 0.44, P less than 0.0001); between differences in UKal and urinary K and in UKal and urinary Na (r = 0.50, P less than 0.0005 and r = 0.48, P less than 0.001 respectively).(ABSTRACT TRUNCATED AT 250 WORDS)
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
0950-9240
pubmed:author
pubmed:issnType
Print
pubmed:volume
5
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
91-6
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1991
pubmed:articleTitle
Potassium supplementation lowers blood pressure and increases urinary kallikrein in essential hypertensives.
pubmed:affiliation
Escuela de Medicina y Facultad de Ciencias Biológicas, Pontificia Universidad Católica, Santiago, Chile.
pubmed:publicationType
Journal Article, Clinical Trial, Randomized Controlled Trial, Research Support, Non-U.S. Gov't