Key result
TLR4 deficiency significantly reduced myocardial infarct size compared to wild type (30.1% vs 49.1% of area at risk) but did not preserve left-ventricular developed pressure or overall cardiac function.
Why the study?
Does TLR4 deficiency reduce infarct size and preserve cardiac function following myocardial ischemia/reperfusion in mice?
Does TLR4 deficiency reduce infarct size and preserve cardiac function following myocardial ischemia/reperfusion in mice?
Absolute Event Rate: 30.1% vs 49.1%
p-value: p=<0.05
TLR4 deficiency reduces infarct size and systemic inflammation following myocardial ischemia/reperfusion but does not preserve myocardial function, highlighting a dichotomy between infarct size and functional recovery.
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Smaller infarcts with TLR4 deficiency do not ensure functional preservation in mice; leaves open its role in human cardioprotection.
Kim et al. (2007) studied Myocardial ischemia/reperfusion injury (n=25). TLR4 deficiency vs. Wild type (WT) mice was evaluated on Infarct size as a percentage of the area at risk (p=<0.05). TLR4 deficiency significantly reduced myocardial infarct size compared to wild type (30.1% vs 49.1% of area at risk) but did not preserve left-ventricular developed pressure or overall cardiac function.
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