What is the clinical evidence from this study?

Population: Myocardial ischemia/reperfusion injury. Intervention: Metformin vs. Sham or MI without metformin. Primary outcome: Left ventricular systolic and diastolic function (ejection fraction, fractional shortening, E' value).

What question did this study set out to answer?

To evaluate the protective effects of metformin on left ventricular systolic and diastolic function, as well as inflammatory gene profiles, in a rat model of myocardial ischemia/reperfusion injury.

February 21, 2020International Journal of Molecular SciencesOpen Access

Metformin Alleviates Left Ventricular Diastolic Dysfunction in a Rat Myocardial Ischemia Reperfusion Injury Model

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Key result

Metformin improves LV systolic and diastolic function in a rat myocardial ischemia/reperfusion model.

Why the study?

An increased incidence of myocardial infarction has emerged as a major cause of cardiovascular morbidity and mortality worldwide, prompting investigation into cardiac function and therapies in myocardial ischemia/reperfusion injury.

Does metformin improve left ventricular systolic and diastolic function in a rat myocardial ischemia/reperfusion injury model?

Population

Rat myocardial ischemia/reperfusion model

Comparison

Metformin administration vs sham or untreated myocardial infarction

Design

Animal experimental study

Follow-up

Day 7

Authors

WJWoori JoDaegu-Gyeongbuk Medical Innovation Foundation KKKyung‐Ku KangDaegu-Gyeongbuk Medical Innovation Foundation SCSehyun ChaeKangwon National University

Discussion

Member takes

Implication

Metformin may enhance LV function after ischemia/reperfusion in rats; human trials needed before any clinical consideration.

Key Points

To evaluate the protective effects of metformin on left ventricular systolic and diastolic function, as well as inflammatory gene profiles, in a rat model of myocardial ischemia/reperfusion injury.
Induced myocardial ischemia/reperfusion (I/R) injury in rats, comparing vehicle-treated controls to cohorts receiving metformin.
Assessed cardiac systolic and diastolic performance over 7 days using echocardiography measurements, including ejection fraction, fractional shortening, and E' velocity.
Profiled gene expression changes within left ventricular myocardial tissue to evaluate downstream immune and inflammatory responses.
Metformin significantly increased left ventricular ejection fraction and fractional shortening at Days 3 and 7 post-injury, indicating enhanced systolic recovery.
Diastolic E' values in metformin-treated infarction models recovered to levels comparable to sham controls by Day 7, whereas early-phase diastolic dysfunction persisted in untreated models.
Gene expression analysis showed that metformin administration notably attenuated immune and inflammatory profiles in left ventricular heart tissues.

Structured PICO

Does metformin improve left ventricular systolic and diastolic function in a rat myocardial ischemia/reperfusion injury model?

Population

Rat myocardial ischemia/reperfusion (I/R) model

Intervention

Metformin administration

Comparator

Sham and MI groups without metformin

Outcome

Left ventricular systolic function (ejection fraction and fractional shortening) and diastolic function (E' value) assessed by echocardiographysurrogate

Metformin improves left ventricular systolic and diastolic function and attenuates immune and inflammatory profiles in a rat myocardial ischemia/reperfusion injury model.

Cite This Study

Jo et al. (2020) studied Myocardial ischemia/reperfusion injury. Metformin vs. Sham or MI without metformin was evaluated on Left ventricular systolic and diastolic function (ejection fraction, fractional shortening, E' value). Metformin administration in a rat myocardial ischemia/reperfusion model significantly improved left ventricular systolic function and restored diastolic function by Day 7.

synapsesocial.com/papers/6a0b995753c707319ec202b2 https://doi.org/10.3390/ijms21041489

Topics

Echocardiography

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Metformin Alleviates Left Ventricular Diastolic Dysfunction in a Rat Myocardial Ischemia Reperfusion Injury Model

Discussion

Member takes

Implication

Key Points

Structured PICO

Cite This Study

Topics

Metformin Alleviates Left Ventricular Diastolic Dysfunction in a Rat Myocardial Ischemia Reperfusion Injury Model

Discussion

Member takes

Implication

Key Points

Structured PICO

Cite This Study

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