Key result
Chronic ethanol consumption elicited gender-specific vascular effects in rats, enhancing phenylephrine-induced contraction in intact male but not female aortae, likely involving iNOS upregulation.
Why the study?
Does chronic ethanol consumption elicit gender-specific vascular effects via iNOS in rats?
Population
Male and female rats (including ovariectomized and intact female rats)
Comparison
Chronic ethanol consumption vs Control group (no ethanol)
Design
Preclinical
Authors
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Hypothesis-generating in rats only; leaves open any translation to human cardiovascular risk or practice.
Does chronic ethanol consumption elicit gender-specific vascular effects via iNOS in rats?
Gender differences in the vascular effects of chronic ethanol consumption in rats appear to be mediated by the upregulation of iNOS rather than ovarian hormones.
Tirapelli et al. (2007) studied this question. Chronic ethanol consumption vs. Control group was evaluated on Vascular reactivity (phenylephrine-induced contraction) and iNOS/eNOS expression. Chronic ethanol consumption elicited gender-specific vascular effects in rats, enhancing phenylephrine-induced contraction in intact male but not female aortae, likely involving iNOS upregulation.
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