July 6, 1990Science
Mediation of Cardioprotection by Transforming Growth Factor-β
Why the study?
Does transforming growth factor-beta (TGF-beta) reduce cardiac injury in a model of myocardial ischemia?
Population
Preclinical model of myocardial ischemia
Design
Preclinical
Authors
Discussion
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Member takes
Implication
TGF-β may protect against ischemia in animals; leaves open translation to human cardiac injury.
Key Points
- To determine whether transforming growth factor-beta (TGF-beta) confers cardioprotection against myocardial ischemia and injury mediated by tumor necrosis factor (TNF).
- Assessed cardiac injury in experimental models of myocardial ischemia and exogenous TNF exposure.
- Administered TGF-beta either prior to or immediately following ischemic injury.
- Measured coronary superoxide anion production, endothelial-dependent coronary vasodilation, and cardiac tissue damage.
- TGF-beta administration before or immediately after ischemia reduced superoxide anion generation within the coronary circulation.
- Treatment maintained endothelial-dependent coronary relaxation and mitigated cardiac tissue injury induced by exogenous TNF.
Structured PICO
Does transforming growth factor-beta (TGF-beta) reduce cardiac injury in a model of myocardial ischemia?
P
Population
Preclinical model of myocardial ischemia
I
Intervention
Transforming growth factor-beta (TGF-beta) given before or immediately after ischemic injury
O
Outcome
Amount of superoxide anions in the coronary circulation, endothelial-dependent coronary relaxation, and cardiac tissue injurysurrogate
TGF-beta prevents severe cardiac injury in myocardial ischemia, potentially by alleviating damage mediated by increases in circulating TNF.
Cite This Study
Lefer et al. (1990) studied this question.