Research Article: The Causal Relationship Between Gastroesophageal Reflux Disease and Chronic Obstructive Pulmonary Disease: A Bidirectional Two-Sample Mendelian Randomization Study
Abstract:
Chronic obstructive pulmonary disease (COPD) and Gastroesophageal reflux disease (GERD) are two common and debilitating diseases that significantly impact global health. COPD is a progressive chronic respiratory disease (CRD) characterized by persistent airflow limitation, chronic systemic inflammation, respiratory symptoms such as coughing, wheezing, and shortness of breath, and pathological changes in the airways., COPD has become the third leading cause of death worldwide, with high morbidity, mortality, and disability rates, and exacerbating the burden on healthcare systems and economies., The incidence of COPD increases with age, with smoking being the major risk factor., In , the global prevalence of COPD was estimated to be approximately . million cases, with an additional . million new cases reported. The disease claimed the lives of . million people, making it the deadliest of all CRD. Gastroesophageal reflux disease (GERD) is a common gastrointestinal disorder that affects approximately % of the world’s population,, and % of adults in Western countries. In recent years, an increasing number of observational studies have shown bidirectional associations between COPD and GERD.– It has been reported that the incidence of GERD in patients with COPD ranges from % to %. In addition, a systematic review showed that the incidence of mixed reflux in patients with GERD was much higher in individuals with COPD than in those without COPD, and exacerbations of COPD have also been associated with GERD. While GERD and COPD are distinct clinical entities, several studies suggested a potential association between these two conditions. However, the results are inconclusive and susceptible because bias due to confounding and reverse causation cannot be excluded in observational studies. Therefore, the direction of this association and the underlying mechanisms remain to be elucidated.
Introduction:
Chronic obstructive pulmonary disease (COPD) and Gastroesophageal reflux disease (GERD) are two common and debilitating diseases that significantly impact global health. COPD is a progressive chronic respiratory disease (CRD) characterized by persistent airflow limitation, chronic systemic inflammation, respiratory symptoms such as coughing, wheezing, and shortness of breath, and pathological changes in the airways. , COPD has become the third leading cause of death worldwide, with high morbidity, mortality, and…
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