Document Detail


Enhanced levels of tissue-type plasminogen activator in borderline hypertension.
MedLine Citation:
PMID:  7591020     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Despite effective antihypertensive therapy, essential hypertension is still associated with considerable residual risk of cardiovascular complications. The aim of the present study was to investigate the state of the endogenous fibrinolytic system in young subjects with borderline hypertension. Thirty-nine young (age, 24 to 34 years) male subjects with borderline hypertension (systolic BP [SBP] 140 to 160 mm Hg and/or diastolic BP [DBP] 85 to 95 mm Hg) and 17 normotensive control subjects (age, 22 to 31 years; SBP 110 to 130 and DBP 60 to 80 mm Hg) were recruited from a population screening. Plasma levels of tissue-type plasminogen activator (t-PA) antigen and activity and plasminogen activator inhibitor 1 (PAI-1) antigen were determined at rest and in response to a venous occlusion test. Borderline-hypertensive subjects had metabolic and anthropometric characteristics similar to normotensive individuals. In comparison with normotensive subjects, borderline-hypertensive subjects had higher plasma concentration of t-PA antigen both at rest and after venous occlusion but similar levels of t-PA activity or PAI-1 antigen. The increase in t-PA antigen and activity in response to venous occlusion was significantly greater in borderline-hypertensive subjects than in normotensive control subjects (P < .0001 and P = .003, respectively). In stepwise regression analyses, 24-hour mean arterial pressure emerged as the single most powerful predictor of t-PA antigen levels, but body mass index was the most important determinant of t-PA activity and PAI-1 antigen. However, PAI-1 was explained by both body mass index (partial r = .48, P < .001) and 24-hour mean arterial pressure (partial r = .29, P < .05). Thus, early hypertension may be associated with significant alterations in endogenous fibrinolysis.
Authors:
U Wall; C Jern; A Bergbrant; S Jern
Publication Detail:
Type:  Clinical Trial; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Hypertension     Volume:  26     ISSN:  0194-911X     ISO Abbreviation:  Hypertension     Publication Date:  1995 Nov 
Date Detail:
Created Date:  1995-12-07     Completed Date:  1995-12-07     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  7906255     Medline TA:  Hypertension     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  796-800     Citation Subset:  IM    
Affiliation:
Department of Clinical Physiology, Ostra University Hospital, Göteborg, Sweden.
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MeSH Terms
Descriptor/Qualifier:
Adult
Blood Pressure
Follow-Up Studies
Humans
Hypertension / metabolism*,  physiopathology
Male
Plasminogen Activator Inhibitor 1 / blood*
Regression Analysis
Risk Factors
Tissue Plasminogen Activator / blood*
Chemical
Reg. No./Substance:
0/Plasminogen Activator Inhibitor 1; EC 3.4.21.68/Tissue Plasminogen Activator

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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