Document Detail


Arterial structure and function and environmental exposure to cadmium.
MedLine Citation:
PMID:  17951338     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
OBJECTIVES: Few studies have addressed the effect of cadmium toxicity on arterial properties. METHODS: We investigated the possible association of 24 h urinary cadmium excretion (an index of lifetime exposure) with measures of arterial function in a randomly selected population sample (n = 557) from two rural areas with low and high environmental exposure to cadmium. RESULTS: 24 h urinary cadmium excretion was significantly higher in the high compared with the low exposure group (p<0.001). Even though systolic (p = 0.42), diastolic (p = 0.14) and mean arterial pressure (p = 0.68) did not differ between the high and low exposure groups, aortic pulse wave velocity (p = 0.008), brachial pulse pressure (p = 0.026) and femoral pulse pressure (p = 0.008) were significantly lower in the high exposure group. Additionally, femoral distensibility (p<0.001) and compliance (p = 0.001) were significantly higher with high exposure. Across quartiles of 24 h urinary cadmium excretion (adjusted for sex and age), brachial (p for trend = 0.015) and femoral (p for trend = 0.018) pulse pressure significantly decreased and femoral distensibility (p for trend = 0.008) and compliance (p for trend = 0.007) significantly increased with higher cadmium excretion. After full adjustment, the partial regression coefficients confirmed these associations. Pulse wave velocity (beta = -0.79+/-0.27; p = 0.004) and carotid (beta = -4.20+/-1.51; p = 0.006), brachial (beta = -5.43+/-1.41; p = 0.001) and femoral (beta = -4.72+/-1.74; p = 0.007) pulse pressures correlated negatively, whereas femoral compliance (beta = 0.11+/-0.05; p = 0.016) and distensibility (beta = 1.70+/-0.70; p = 0.014) correlated positively with cadmium excretion. CONCLUSION: Increased cadmium body burden is associated with lower aortic pulse wave velocity, lower pulse pressure throughout the arterial system, and higher femoral distensibility.
Authors:
R Schutte; T Nawrot; T Richart; L Thijs; H A Roels; L M Van Bortel; H Struijker-Boudier; J A Staessen
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2007-10-19
Journal Detail:
Title:  Occupational and environmental medicine     Volume:  65     ISSN:  1470-7926     ISO Abbreviation:  Occup Environ Med     Publication Date:  2008 Jun 
Date Detail:
Created Date:  2008-05-19     Completed Date:  2008-06-04     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9422759     Medline TA:  Occup Environ Med     Country:  England    
Other Details:
Languages:  eng     Pagination:  412-9     Citation Subset:  IM    
Affiliation:
Studies Coordinating Centre, Division of Hypertension and Cardiovascular Rehabilitation, Department of Cardiovascular Diseases, University of Leuven, Leuven, Belgium.
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MeSH Terms
Descriptor/Qualifier:
Adult
Aged
Arteries / drug effects*,  physiology
Blood Flow Velocity / drug effects
Blood Pressure / drug effects
Body Burden
Brachial Artery / drug effects,  physiology
Cadmium / toxicity*,  urine
Carotid Artery, Common / drug effects,  physiology
Compliance / drug effects
Environmental Exposure / analysis*
Female
Femoral Artery / drug effects,  physiology
Humans
Male
Middle Aged
Pulsatile Flow / drug effects
Rural Health
Vasodilation / drug effects
Chemical
Reg. No./Substance:
7440-43-9/Cadmium

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


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