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Chen J, Sun Y, Fu T, Lu S, Shi W, Zhao J, Li S, Li X, Yuan S, Larsson SC. Risk of incident cardiovascular disease among patients with gastrointestinal disorder: a prospective cohort study of 330 751 individuals. EUROPEAN HEART JOURNAL. QUALITY OF CARE & CLINICAL OUTCOMES 2024; 10:357-365. [PMID: 37777843 DOI: 10.1093/ehjqcco/qcad059] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Revised: 09/05/2023] [Accepted: 09/29/2023] [Indexed: 10/02/2023]
Abstract
BACKGROUND AND AIMS The associations between gastrointestinal diseases (GIs) and cardiovascular disease (CVD) were unclear. We conducted a prospective cohort study to explore their associations. METHODS This study included 330 751 individuals without baseline CVD from the UK Biobank cohort. Individuals with and without GIs were followed up until the ascertainment of incident CVDs, including coronary heart disease (CHD), cerebrovascular disease (CeVD), heart failure (HF), and peripheral artery disease (PAD). The diagnosis of diseases was confirmed with combination of the nationwide inpatient data, primary care data, and cancer registries. A multivariable Cox proportional hazard regression model was used to estimate the associations between GIs and the risk of incident CVD. RESULTS During a median follow-up of 11.8 years, 31 605 incident CVD cases were diagnosed. Individuals with GIs had an elevated risk of CVD (hazard ratio 1.37; 95% confidence interval 1.34-1.41, P < 0.001). Eleven out of 15 GIs were associated with an increased risk of CVD after Bonferroni-correction, including cirrhosis, non-alcoholic fatty liver disease, gastritis and duodenitis, irritable bowel syndrome, Barrett's esophagus, gastroesophageal reflux disease, peptic ulcer, celiac disease, diverticulum, appendicitis, and biliary disease. The associations were stronger among women, individuals aged ≤60 years, and those with body mass index ≥25 kg/m2. CONCLUSIONS This large-scale prospective cohort study revealed the associations of GIs with an increased risk of incident CVD, in particular CHD and PAD. These findings support the reinforced secondary CVD prevention among patients with gastrointestinal disorders.
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Affiliation(s)
- Jie Chen
- Department of Big Data in Health Science, School of Public Health and The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310058, China
- Department of Gastroenterology, The Third Xiangya Hospital, Central South University, Changsha 410013, China
| | - Yuhao Sun
- Department of Big Data in Health Science, School of Public Health and The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310058, China
| | - Tian Fu
- Department of Gastroenterology, The Third Xiangya Hospital, Central South University, Changsha 410013, China
| | - Shiyuan Lu
- Department of Gastroenterology, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou 310009, China
| | - Wenming Shi
- School of Public Health, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong 999077, China
| | - Jianhui Zhao
- Department of Big Data in Health Science, School of Public Health and The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310058, China
| | - Sen Li
- Department of vascular surgery, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou 310009, China
| | - Xue Li
- Department of Big Data in Health Science, School of Public Health and The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310058, China
| | - Shuai Yuan
- Unit of Cardiovascular and Nutritional Epidemiology, Institute of Environmental Medicine, Karolinska Institutet, Stockholm 17177, Sweden
| | - Susanna C Larsson
- Unit of Cardiovascular and Nutritional Epidemiology, Institute of Environmental Medicine, Karolinska Institutet, Stockholm 17177, Sweden
- Unit of Medical Epidemiology, Department of Surgical Sciences, Uppsala University, Uppsala 75105, Sweden
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Wang J, Song M, Cao M. The causal role of multiple psycho-emotional disorders in gastroesophageal reflux disease: A two-sample Mendelian randomized study. PLoS One 2024; 19:e0302469. [PMID: 38709755 PMCID: PMC11073702 DOI: 10.1371/journal.pone.0302469] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Accepted: 04/04/2024] [Indexed: 05/08/2024] Open
Abstract
BACKGROUND Observational studies have previously shown a potential link between psycho-emotional disorders, such as mood swings, highly strung, anxious feelings, and gastroesophageal reflux disease (GERD). However, the credibility of these associations could be influenced by various confounding factors. Consequently, our study sought to employ a Mendelian randomization (MR) approach to elucidate a potential causal relationship between psycho-emotional disorders and GERD. METHOD Information on independent genetic variants linked to mood swings, highly strung, and anxious feelings was gathered from European populations participating in the IEU Open GWAS research. The FinnGen Consortium provided the genome-wide association study (GWAS) summary statistics for GERD. Our analysis employed the inverse variance weighted (IVW) method under the random effects model as the main analytical method. To further bolster our findings, we employed the weighted median and MR Egger methods. In addition, we conducted a series of sensitivity analyses. RESULTS Our study supports the existence of a causal relationship between psycho-emotional disorders and GERD. Mood swings, highly strung, and anxious feelings adversely affected GERD risk (mood swings: OR 2.21, 95% CI 1.19-5.59, p = 3.09 × 10-2; highly strung: OR 5.63, 95% CI 1.77-17.94, p = 3.42 × 10-3; anxious feelings: OR 2.48, 95% CI 1.08-4.33, p = 2.89 × 10-2). CONCLUSION This Mendelian randomization study provides robust support for the notion that mood swings, highly strung and anxious feelings, are associated with an increased risk of developing GERD.
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Affiliation(s)
- Jing Wang
- Department of Gastroenterology, People’s Hospital of Zhengzhou University, Henan Zhengzhou, China
| | - Meng Song
- Cancer Center, People’s Hospital of Zhengzhou University, Henan Zhengzhou, China
| | - Mingbo Cao
- Department of Gastroenterology, People’s Hospital of Zhengzhou University, Henan Zhengzhou, China
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Chen S, Chen Z, Jiang X, Lin C, Ji J. Modifiable risk factors mediate the effect of gastroesophageal reflux disease on stroke and subtypes: A Mendelian randomization study. J Stroke Cerebrovasc Dis 2024; 33:107612. [PMID: 38309380 DOI: 10.1016/j.jstrokecerebrovasdis.2024.107612] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Revised: 01/24/2024] [Accepted: 01/29/2024] [Indexed: 02/05/2024] Open
Abstract
OBJECTIVES Previous observational studies have suggested that gastroesophageal reflux disease (GERD) increases the risk of stroke, but the specific underlying mechanisms are unclear. We investigated the causal associations of GERD with stroke and its subtypes using Mendelian randomization (MR), and evaluated the potential mediating effects of modifiable stroke risk factors in the causal pathway. METHODS Genetic instrumental variables for GERD were extracted from the latest genome-wide association study (GWAS) summary level data. We initially performed two-sample MR to examine the association of GERD with stroke and its subtypes, including ischemic stroke, intracranial hemorrhage, and the major subtypes of ischemic stroke. Two-step MR was further employed to investigate the mediating effect of 15 risk factors in the causal pathway. RESULTS We found significant causal associations of genetically predicted GERD with increased risk of stroke (OR: 1.22 95% CI: 1.126-1.322), ischemic stroke (OR: 1.19 95% CI: 1.098-1.299), and large-artery stroke (OR: 1.49 95% CI: 1.214-1.836). Replication and sensitivity analyses yielded consistent effect directions and similar estimates. Further mediation analyses indicated that hypertension (HTN), systolic blood pressure (SBP), and type 2 diabetes (T2D) mediated 36.0%, 9.0%, and 15.8% of the effect of GERD on stroke; 42.9%, 10.8%, and 21.4% for ischemic stroke, and 23.3%; 7.9%, and 18.7% for large-artery stroke, respectively. CONCLUSIONS This study supports that GERD increases susceptibility to stroke, ischemic stroke, and large-artery stroke, and is partially mediated by HTN, SBP, and T2D.
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Affiliation(s)
- Shixuan Chen
- Department of Rehabilitation Medicine, Zhejiang University of Traditional Chinese Medicine Affiliated Wenzhou City Hospital of Integrated Western and Traditional Chinese Medicine, China
| | - Zhenzhen Chen
- Department of Nursing, Zhejiang University of Traditional Chinese Medicine Affiliated Wenzhou City Hospital of Integrated Western and Traditional Chinese Medicine, China
| | - Xia Jiang
- Department of Rehabilitation Medicine, Zhejiang University of Traditional Chinese Medicine Affiliated Wenzhou City Hospital of Integrated Western and Traditional Chinese Medicine, China
| | - Chuyong Lin
- Department of Rehabilitation Medicine, Zhejiang University of Traditional Chinese Medicine Affiliated Wenzhou City Hospital of Integrated Western and Traditional Chinese Medicine, China
| | - Jing Ji
- Department of Rehabilitation Medicine, Zhejiang University of Traditional Chinese Medicine Affiliated Wenzhou City Hospital of Integrated Western and Traditional Chinese Medicine, China.
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Chen G, Guo W, Liu S, Wang Y, Zhang X. Causal analysis between gastroesophageal reflux disease and chronic rhinosinusitis. Eur Arch Otorhinolaryngol 2024; 281:1819-1825. [PMID: 38189968 DOI: 10.1007/s00405-023-08350-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2023] [Accepted: 11/10/2023] [Indexed: 01/09/2024]
Abstract
BACKGROUND Gastroesophageal reflux disease (GERD) and chronic rhinosinusitis (CRS) have been shown to be potentially closely related, but the relationship between these conditions, particularly the possibility of a causal link, is not fully understood. This study used Mendelian randomization (MR) to assess the causal relationship between these two disorders. METHODS We extracted genome-wide association study data sets for GERD and CRS from publicly available gene summaries, and used MR to conduct a causal inference analysis. The main robustness test used in this study included MR-Egger regression, a leave-one-out sensitivity test, and multivariate MR (MVMR). RESULTS GERD increased the risk of developing CRS by 36%, based on the inverse-variance weighted method, a statistically significant association (odds ratio [OR] 1.360, 95% confidence interval [CI] 1.179-1.568, P < 0.001). Other MR assessment methods, such as weighted median, simple mode, and weighted mode, similarly observed a significant increase in the risk of CRS occurrence (OR 1.434, 95% CI 1.186-1.734, P < 0.001; OR 1.927, 95% CI 1.166-3.184, P = 0.013; and OR 1.910, 95% CI 1.222-2.983, P = 0.006, respectively). No significant bias was found in the heterogeneity or pleiotropy tests (P = 0.071 and P = 0.700, respectively). Even after excluding possible mediators using MVMR, GERD appeared to significantly increase the risk of developing CRS (OR 1.013, 95% CI 1.008-1.023, P = 0.002). CONCLUSIONS This study provides new, significant evidence that GERD is genetically associated with a higher incidence rate of CRS. However, further research is needed to elucidate the potential underlying biological mechanisms of this relationship.
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Affiliation(s)
- Gui Chen
- Department of Otolaryngology-Head and Neck Surgery, The Key Laboratory of Advanced Interdisciplinary Studies Center, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510120, Guangdong, China
| | - Wucheng Guo
- Department of Otolaryngology-Head and Neck Surgery, The Key Laboratory of Advanced Interdisciplinary Studies Center, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510120, Guangdong, China
| | - Shenrong Liu
- Department of Cardiology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510120, Guangdong, China
| | - Yingqi Wang
- Department of Otolaryngology-Head and Neck Surgery, The Key Laboratory of Advanced Interdisciplinary Studies Center, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510120, Guangdong, China
| | - Xiaowen Zhang
- Department of Otolaryngology-Head and Neck Surgery, The Key Laboratory of Advanced Interdisciplinary Studies Center, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510120, Guangdong, China.
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Wang S, Li Z, Zhou Z, Kang M. Causal analysis of gastroesophageal reflux disease and esophageal cancer. Medicine (Baltimore) 2024; 103:e37433. [PMID: 38489737 PMCID: PMC10939529 DOI: 10.1097/md.0000000000037433] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Revised: 01/01/2024] [Accepted: 02/08/2024] [Indexed: 03/17/2024] Open
Abstract
Patients with gastroesophageal reflux disease (GERD) are more likely to develop esophageal cancer (EC). However, a causal relationship between the 2 has been difficult to determine. Therefore, this study aimed to evaluate the impact of GERD on EC using the Mendelian randomization (MR) method. The causal association between GERD and EC was analyzed based on 2 publicly available genetic summary datasets for the GERD cohort (129,080 cases vs 473,524 controls) and the EC cohort (740 cases vs 372,016 controls). The causal inference was mainly evaluated by the inverse variance weighted MR. The MR-Egger regression, MR Pleiotropy Residual Sum and Outlier test, and leave-one-out test were used to confirm the sensitivity of the MR results. Possible interfering factors were excluded by multivariate MR (MVMR) analysis. We used 73 single nucleotide polymorphisms as instrumental variables. GERD was associated with increasing EC risk (odds ratio [OR], 1.001; 95% confidence interval, 1.001-1.002; P < .001), which was identified using the inverse variance weighted method. The sensitivity analysis also demonstrated similar results with the causal explanation, and major bias in genetic pleiotropy was not identified (intercept, 0.001; standard error, 0.001; P = .418). The multivariate MR analysis demonstrated the effect of GERD on EC even after excluding possible mediating factors (OR, 1.003; 95% confidence interval, 1.001-1.005; P = .012). This study confirmed that GERD has a causal effect on EC. Therefore, interventional measures are recommended to prevent EC.
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Affiliation(s)
- Shuangyue Wang
- Department of Radiation Oncology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China
- Guangxi Tumor Radiation Therapy Clinical Medical Research Center, Nanning, Guangxi, China
- Guangxi Key Laboratory of Immunology and Metabolism for Liver Diseases, Nanning, Guangxi, China
- Key Laboratory of Early Prevention and Treatment for Regional High Frequency Tumor (Guangxi Medical University), Ministry of Education, Nanning, Guangxi, China
| | - Zhiru Li
- Department of Radiation Oncology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China
- Guangxi Tumor Radiation Therapy Clinical Medical Research Center, Nanning, Guangxi, China
- Guangxi Key Laboratory of Immunology and Metabolism for Liver Diseases, Nanning, Guangxi, China
- Key Laboratory of Early Prevention and Treatment for Regional High Frequency Tumor (Guangxi Medical University), Ministry of Education, Nanning, Guangxi, China
| | - Ziyan Zhou
- Department of Radiation Oncology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China
- Guangxi Tumor Radiation Therapy Clinical Medical Research Center, Nanning, Guangxi, China
- Guangxi Key Laboratory of Immunology and Metabolism for Liver Diseases, Nanning, Guangxi, China
- Key Laboratory of Early Prevention and Treatment for Regional High Frequency Tumor (Guangxi Medical University), Ministry of Education, Nanning, Guangxi, China
| | - Min Kang
- Department of Radiation Oncology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China
- Guangxi Tumor Radiation Therapy Clinical Medical Research Center, Nanning, Guangxi, China
- Guangxi Key Laboratory of Immunology and Metabolism for Liver Diseases, Nanning, Guangxi, China
- Key Laboratory of Early Prevention and Treatment for Regional High Frequency Tumor (Guangxi Medical University), Ministry of Education, Nanning, Guangxi, China
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Wei N, Liu MH, Song YH. Causal associations between gastroesophageal reflux disease and essential hypertension: A bidirectional Mendelian randomization study. World J Clin Cases 2024; 12:880-890. [PMID: 38414595 PMCID: PMC10895642 DOI: 10.12998/wjcc.v12.i5.880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 12/12/2023] [Accepted: 01/16/2024] [Indexed: 01/31/2024] Open
Abstract
BACKGROUND Clinical studies have reported that patients with gastroesophageal reflux disease (GERD) have a higher prevalence of hypertension. AIM To performed a bidirectional Mendelian randomization (MR) analysis to investigate the causal link between GERD and essential hypertension. METHODS Eligible single nucleotide polymorphisms (SNPs) were selected, and weighted median, inverse variance weighted (IVW) as well as MR egger (MR-Egger) regression were used to examine the potential causal association between GERD and hypertension. The MR-Pleiotropy RESidual Sum and Outlier analysis was used to detect and attempt to reduce horizontal pleiotropy by removing outliers SNPs. The MR-Egger intercept test, Cochran's Q test and "leave-one-out" sensitivity analysis were performed to evaluate the horizontal pleiotropy, heterogeneities, and stability of single instrumental variable. RESULTS IVW analysis exhibited an increased risk of hypertension (OR = 1.46, 95%CI: 1.33-1.59, P = 2.14E-16) in GERD patients. And the same result was obtained in replication practice (OR = 1.002, 95%CI: 1.0008-1.003, P = 0.000498). Meanwhile, the IVW analysis showed an increased risk of systolic blood pressure (β = 0.78, 95%CI: 0.11-1.44, P = 0.021) and hypertensive heart disease (OR = 1.68, 95%CI: 1.36-2.08, P = 0.0000016) in GERD patients. Moreover, we found an decreased risk of Barrett's esophagus (OR = 0.91, 95%CI: 0.83-0.99, P = 0.043) in essential hypertension patients. CONCLUSION We found that GERD would increase the risk of essential hypertension, which provided a novel prevent and therapeutic perspectives of essential hypertension.
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Affiliation(s)
- Ning Wei
- Department of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, Hubei Province, China
| | - Ming-Hui Liu
- Department of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, Hubei Province, China
| | - Yu-Hu Song
- Department of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, Hubei Province, China
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Meng D, Zhang X, Yu W, Yin G, Chen S, Liu H, Wang L, Zhang F. Association between gastroesophageal reflux disease and stroke: a bidirectional Mendelian randomization study. Front Neurol 2024; 14:1295051. [PMID: 38322794 PMCID: PMC10844487 DOI: 10.3389/fneur.2023.1295051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Accepted: 12/21/2023] [Indexed: 02/08/2024] Open
Abstract
Objective Some previous studies have suggested a potential link between stroke and gastroesophageal reflux disease (GERD). We used a two-sample bidirectional Mendelian randomization (MR) method to explore the causal relationship between stroke and GERD. Design Summary-level data derived from the published genome-wide association studies (GWAS) were employed for analyses. Single-nucleotide polymorphisms (SNPs) as instrumental variables (IVs) for stroke (n = 446,696) and its common subtypes ischemic stroke (IS) (n = 440,328), large vessel stroke (LVS) (n = 410,484), small vessel stroke (SVS) (n = 198,048), and cardioembolic stroke (CES) (n = 413,304) were obtained from the MEGASTROKE consortium. The data on intracerebral hemorrhage (ICH) (n = 721,135) come from the UK Biobank. Instrumental variables (IVs) for lacunar stroke (LS) (n = 474,348) and GERD (n = 602,604) were screened from publicly available genetic summary data. The inverse variance weighted (IVW) method was used as the main MR method. Pleiotropy was detected by the MR-Egger intercept test, MR pleiotropy residual sum and outlier, and leave-one-out analysis. Cochran Q statistics were used as supplements to detect pleiotropy. Results We found that GERD can causally increase the risk of stroke [IVW odds ratio (OR): 1.22, 95% confidence interval (CI): 1.13-1.32, p = 1.16 × 10-6] and its common subtypes IS (OR: 1.19, 95% CI: 1.10-1.30, p = 3.22 × 10-5), LVS (OR: 1.49, 95% CI: 1.21-1.84, p = 1.47 × 10-4), and LS (OR: 1.20, 95% CI: 1.001-1.44, p = 0.048). Several important risk factors for stroke have also been implicated in the above causal relationship, including type 2 diabetes, sleep apnea syndrome, high body mass index, high waist-to-hip ratio, and elevated serum triglyceride levels. In reverse MR analysis, we found that overall stroke (OR: 1.09, 95% CI: 1.004-1.19, p = 0.039) and IS (OR: 1.10, 95% CI: 1.03-1.17, p = 0.007) have the causal potential to enhance GERD risk. Conclusion This MR study provides evidence supporting a causal relationship between GERD and stroke and some of its common subtypes. We need to further explore the interconnected mechanisms between these two common diseases to better prevent and treat them.
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Affiliation(s)
- Decheng Meng
- First College of Clinical Medicine, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Xin Zhang
- First College of Clinical Medicine, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Wenfei Yu
- First College of Clinical Medicine, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Guoliang Yin
- First College of Clinical Medicine, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Suwen Chen
- First College of Clinical Medicine, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Hongshuai Liu
- College of Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Linya Wang
- College of Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Fengxia Zhang
- Department of Neurology, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China
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Liu Y, Lai H, Zhang R, Xia L, Liu L. Causal relationship between gastro-esophageal reflux disease and risk of lung cancer: insights from multivariable Mendelian randomization and mediation analysis. Int J Epidemiol 2023; 52:1435-1447. [PMID: 37344162 DOI: 10.1093/ije/dyad090] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2022] [Accepted: 06/13/2023] [Indexed: 06/23/2023] Open
Abstract
AIM A recent study has reported that anti-reflux surgery reduced the risk of lung cancer. However, the exact causal association between gastro-esophageal reflux disease (GORD) and lung cancer remains obscure. Therefore, we conducted a multivariable and network Mendelian randomization (MR) study to explore this potential association and mediation effect. METHODS Independent single nucleotide polymorphisms (SNPs) strongly associated with GORD were selected as instrumental variables (IVs) from the corresponding genome-wide association studies (GWAS). The summary statistics were obtained from the largest GORD GWAS meta-analysis of 367 441 (78 707 cases) European individuals, and the summary statistics of lung cancer and pathological subtypes came from International Lung Cancer Consortium (ILCCO) and FinnGen databases. Univariable and multivariable MR analyses were performed to investigate and verify the causal relationship between genetically predicted GORD and lung cancer. Network MR analysis was conducted to reveal the mediating role of GORD between smoking initiation and lung cancer. RESULTS The univariable MR analysis demonstrated that GORD was associated with an increased risk of total lung cancer in both ILCCO [inverse variance weighted (IVW): odds ratio (OR) = 1.37, 95% confidence interval (CI) 1.16-1.62, P = 1.70E-04] and FinnGen database (IVW: OR = 1.25, 95% confidence interval CI 1.03-1.52, P = 2.27E-02). The consistent results were observed after adjusting the potential confounders [smoking traits, body mass index (BMI) and type 2 diabetes] in multivariable MR analyses. In subtype analyses, GORD was associated with lung adenocarcinoma (IVW: OR = 1.27, 95% CI 1.02-1.59, P = 3.48E-02) and lung squamous cell carcinomas (IVW: OR = 1.50, 95% CI 1.22-1.86, P = 1.52E-04). Moreover, GORD mediated 32.43% (95% CI 14.18-49.82%) and 25.00% (95% CI 3.13-50.00%) of the smoking initiation effects on lung cancer risk in the ILCCO and FinnGen databases, respectively. CONCLUSION This study provides credible evidence that genetically predicted GORD was significantly associated with an increased risk of total lung cancer, lung adenocarcinoma and lung squamous cell carcinomas. Furthermore, our results suggest GORD is involved in the mechanism of smoking initiation-induced lung cancer.
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Affiliation(s)
- Yi Liu
- Department of Thoracic Surgery and Institute of Thoracic Oncology, West China Hospital, Sichuan University, Chengdu, China
- West China School of Medicine, Sichuan University, Chengdu, Sichuan, China
| | - Hongjin Lai
- Department of Thoracic Surgery and Institute of Thoracic Oncology, West China Hospital, Sichuan University, Chengdu, China
- West China School of Medicine, Sichuan University, Chengdu, Sichuan, China
| | - Ren Zhang
- West China School of Medicine, Sichuan University, Chengdu, Sichuan, China
| | - Liang Xia
- Department of Thoracic Surgery and Institute of Thoracic Oncology, West China Hospital, Sichuan University, Chengdu, China
- West China School of Medicine, Sichuan University, Chengdu, Sichuan, China
| | - Lunxu Liu
- Department of Thoracic Surgery and Institute of Thoracic Oncology, West China Hospital, Sichuan University, Chengdu, China
- Western China Collaborative Innovation Center for Early Diagnosis and Multidisciplinary Therapy of Lung Cancer, Sichuan University, Chengdu, China
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Cheng X, Shi J, Zhang D, Li C, Xu H, He J, Liang W. Assessing the genetic relationship between gastroesophageal reflux disease and chronic respiratory diseases: a mendelian randomization study. BMC Pulm Med 2023; 23:243. [PMID: 37403021 DOI: 10.1186/s12890-023-02502-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Accepted: 05/31/2023] [Indexed: 07/06/2023] Open
Abstract
BACKGROUND Previous observational studies have found an association between gastroesophageal reflux disease (GERD) and chronic respiratory diseases, but it remains uncertain whether GERD causally influences these diseases. In this study, we aimed to estimate the causal associations between GERD and 5 chronic respiratory diseases. METHODS 88 GERD-associated single nucleotide polymorphisms (SNPs) identified by the latest genome-wide association study were included as instrumental variables. Individual-level genetic summary data of participants were obtained from corresponding studies and the FinnGen consortium. We applied the inverse-variance weighted method to estimate the causality between genetically predicted GERD and 5 chronic respiratory diseases. Furthermore, the associations between GERD and common risk factors were investigated, and mediation analyses were conducted using multivariable MR. Various sensitivity analyses were also performed to verify the robustness of the findings. RESULTS Our study demonstrated that genetically predicted GERD was causally associated with an increased risk of asthma (OR 1.39, 95%CI 1.25-1.56, P < 0.001), idiopathic pulmonary fibrosis (IPF) (OR 1.43, 95%CI 1.05-1.95, P = 0.022), chronic obstructive disease (COPD) (OR 1.64, 95%CI 1.41-1.93, P < 0.001), chronic bronchitis (OR 1.77, 95%CI 1.15-2.74, P = 0.009), while no correlation was observed for bronchiectasis (OR 0.93, 95%CI 0.68-1.27, P = 0.645). Additionally, GERD was associated with 12 common risk factors for chronic respiratory diseases. Nevertheless, no significant mediators were discovered. CONCLUSIONS Our study suggested that GERD was a causal factor in the development of asthma, IPF, COPD and chronic bronchitis, indicating that GERD-associated micro-aspiration of gastric contents process might play a role in the development of pulmonary fibrosis in these diseases.
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Affiliation(s)
- Xiaoxue Cheng
- Nanshan School, Guangzhou Medical University, Guangzhou, 511436, China
| | - Jiang Shi
- Department of Thoracic Surgery and Oncology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510120, China
- State Key Laboratory of Respiratory Disease, Guangzhou, 510120, China
- National Clinical Research Center for Respiratory Disease, Guangzhou, 510120, China
| | - Ding Zhang
- Department of Gastroenterology, Maoming Hospital of Guangzhou University of Chinese Medicine, Maoming, China
| | - Caichen Li
- Department of Thoracic Surgery and Oncology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510120, China
- State Key Laboratory of Respiratory Disease, Guangzhou, 510120, China
- National Clinical Research Center for Respiratory Disease, Guangzhou, 510120, China
| | - Haoxiang Xu
- The Second Affiliated Hospital, Guangdong Provincial Hospital of Chinese Medicine) of Guangzhou University of Chinese Medicine, Guangzhou, 510120, China
| | - Jianxing He
- Department of Thoracic Surgery and Oncology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510120, China
- State Key Laboratory of Respiratory Disease, Guangzhou, 510120, China
- National Clinical Research Center for Respiratory Disease, Guangzhou, 510120, China
| | - Wenhua Liang
- Department of Thoracic Surgery and Oncology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510120, China.
- State Key Laboratory of Respiratory Disease, Guangzhou, 510120, China.
- National Clinical Research Center for Respiratory Disease, Guangzhou, 510120, China.
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Chen G, Gong X, Liu S, Xie J, Wang Y, Guo W, Liao W, Song L, Zhang X. Causal analysis between gastro-oesophageal reflux disease and obstructive sleep apnoea. ERJ Open Res 2023; 9:00127-2023. [PMID: 37650083 PMCID: PMC10463038 DOI: 10.1183/23120541.00127-2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2023] [Accepted: 05/28/2023] [Indexed: 09/01/2023] Open
Abstract
Background Based on evidence from existing observational research, clarifying the causal relationship between gastro-oesophageal reflux disease (GORD) and obstructive sleep apnoea (OSA) is challenging. Here, Mendelian randomisation, a method based on genetics, was used to provide new evidence for causality. Methods Summary statistics from two publicly available genome-wide association studies were used to evaluate the causal relationship between GORD and OSA (the GORD database was used as an exposure variable and the OSA database as an outcome). Inverse variance weighting was used as the main analytical tool in Mendelian randomisation to estimate causal effects. The robustness of the results was evaluated by sensitivity analysis. Possible mediators were evaluated using multivariate Mendelian randomisation. Results A statistically significant causal relationship was observed between GORD and OSA (OR 1.597, 95% CI 1.401-1.821, p<0.001), and similar results were observed in weighted median and Mendelian randomisation-Egger regression analyses. No bias was found in the sensitivity analysis of Mendelian randomisation estimation. Multivariate Mendelian randomisation showed that GORD significantly increased the risk of developing OSA, even when the possible mediator was excluded (OR 1.107, 95% CI 1.101-1.212, p<0.001). Conclusion Our study confirmed a causal relationship between GORD and OSA and suggests that intervention measures should be taken for patients with GORD to prevent the occurrence of OSA.
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Affiliation(s)
- Gui Chen
- State Key Laboratory of Respiratory Disease, Department of Otolaryngology – Head and Neck Surgery, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
- These authors contributed equally
| | - Xin Gong
- Department of Otolaryngology – Head and Neck Surgery, Wushan County People's Hospital of Chongqing, Wushan, China
- These authors contributed equally
| | - Shenrong Liu
- Department of Cardiology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Junyang Xie
- State Key Laboratory of Respiratory Disease, Department of Otolaryngology – Head and Neck Surgery, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Yingqi Wang
- State Key Laboratory of Respiratory Disease, Department of Otolaryngology – Head and Neck Surgery, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Wucheng Guo
- Department of Stomatology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Wenjing Liao
- State Key Laboratory of Respiratory Disease, Department of Otolaryngology – Head and Neck Surgery, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Lijuan Song
- State Key Laboratory of Respiratory Disease, Department of Otolaryngology – Head and Neck Surgery, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Xiaowen Zhang
- State Key Laboratory of Respiratory Disease, Department of Otolaryngology – Head and Neck Surgery, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
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