Global air pollution exposure and hepatocellular carcinoma: a systematic review and meta-analysis of epidemiological studies.

Introduction: Air pollution poses a significant public health threat worldwide, contributing to adverse health outcomes and reduced life expectancy. Recent research has highlighted a growing interest in understanding the association between air pollution and cancer. This meta-analysis aims to comprehensively evaluate the association between prolonged exposure to air pollution and the risk of HCC.

Impact of Prior Metformin Use on Stroke Outcomes: A Systematic Review and Updated Meta-Analysis.

Background: Metformin is a commonly prescribed oral hypoglycemic agent for diabetic patients. Its effect in reducing the incidence of stroke has already been proven. We aimed to explore the impact of prior metformin use on stroke outcomes.