scholarly journals Impact ofCYP1A1Polymorphisms on Susceptibility to Chronic Obstructive Pulmonary Disease: A Meta-Analysis

2015 ◽  
Vol 2015 ◽  
pp. 1-9 ◽  
Author(s):  
Cheng-Di Wang ◽  
Nan Chen ◽  
Lin Huang ◽  
Jia-Rong Wang ◽  
Zhi-Yuan Chen ◽  
...  
Keyword(s):  
Chronic Obstructive Pulmonary Disease ◽  
Pulmonary Disease ◽  
Meta Analysis ◽  
Asian Population ◽  
Chronic Obstructive ◽  
Case Control Studies ◽  
China National Knowledge Infrastructure ◽  
Obstructive Pulmonary Disease ◽  
Mspi Polymorphism ◽  
Online Databases

Objective.Several studies have evaluated the association betweenCYP1A1polymorphisms and the susceptibility of chronic obstructive pulmonary disease (COPD) with inconclusive results. We performed the first comprehensive meta-analysis to summarize the association betweenCYP1A1polymorphisms and COPD risk.Method.A systematic literature search was conducted (up to April 2015) in five online databases: PubMed, EMBASE, China National Knowledge Infrastructure (CNKI), WeiPu, and WanFang databases. The strength of association was calculated by odds ratio (OR) and corresponding 95% confidence interval (CI).Results.Seven case-control studies with 1050 cases and 1202 controls were included. Our study suggested a significant association between the MspI polymorphism and COPD risk (CC versus TC + TT: OR = 1.57, CI: 1.09–2.26,P=0.02; CC versus TT: OR = 1.73, CI: 1.18–2.55,P=0.005). For the Ile/Val polymorphism, a significant association with COPD risk was observed (GG versus AG + AA: OR = 2.75, CI: 1.29–5.84,P= 0.009; GG versus AA: OR = 3.23, CI: 1.50–6.93,P=0.003; AG versus AA: OR = 1.39, CI: 1.01–1.90,P=0.04). Subgroup analysis indicated a significant association between the MspI variation and COPD risk among Asians (CC versus TC + TT: OR = 1.70, CI: 1.06–2.71,P=0.03; CC versus TT: OR = 1.84, CI: 1.11–3.06,P=0.02).Conclusion.The MspI and Ile/Val polymorphisms might alter the susceptibility of COPD, and MspI polymorphism might play a role in COPD risk among Asian population.

scholarly journals Association between the TGF-β1 polymorphisms and chronic obstructive pulmonary disease: a meta-analysis

2017 ◽  
Vol 37 (4) ◽  
Author(s):  
Ning Liao ◽  
Hua Zhao ◽  
Min-Li Chen ◽  
Zheng-Fu Xie
Keyword(s):  
Chronic Obstructive Pulmonary Disease ◽  
Pulmonary Disease ◽  
Transforming Growth Factor ◽  
Meta Analysis ◽  
Transforming Growth Factor Β1 ◽  
Chronic Obstructive ◽  
Case Control Studies ◽  
China National Knowledge Infrastructure ◽  
Obstructive Pulmonary Disease ◽  
Tgf Β1

It has been hypothesized that polymorphisms in the transforming growth factor-β1 (TGF-β1) gene on chromosome 19 modify the risk for chronic obstructive pulmonary disease (COPD). However, results from previous studies are contradictory. We therefore conducted a meta-analysis of published case–control studies on the association between five common TGF-β1 polymorphisms (rs1982073, rs1800469, rs2241712, rs6957, and rs2241718) and COPD risk. Data sources were Pubmed, Scopus, ISI Web of Science, China National Knowledge Infrastructure (CNKI), and Wanfang databases. Twelve studies including 6749 participants were reviewed and analyzed. For the TGF-β1 polymorphism rs1982073, the results indicted that the C allele was associated with decreased risk of COPD in Caucasians (odds ratio (OR) =0.79, 95% confidence interval (CI): 0.64–0.99, P=0.038) but not in Asians (OR =0.95, 95% CI: 0.71–1.28, P=0.741). No associations with COPD were identified for other polymorphisms evaluated in the present study including rs1800469 (T allele compared with C allele, OR =0.89, 95% CI: 0.77–1.02, P=0.099), rs2241712 (A allele compared with G allele, OR =1.03, 95% CI: 0.89–1.20, P=0.666), rs6957 (A allele compared with G allele, OR =1.14, 95% CI: 0.95–1.36, P=0.160), and rs2241718 (C allele compared with T allele, OR =0.95, 95% CI: 0.79–1.14, P=0.571). In conclusion, this meta-analysis showed that the C allele of rs1982073 was protective against COPD in Caucasians but not in Asians, whereas there was no association of rs1800469, rs2241712, rs6957, and rs2241718 with COPD.

scholarly journals Chronic obstructive pulmonary disease associated with biomass fuel use in women: a systematic review and meta-analysis

2018 ◽  
Vol 5 (1) ◽  
pp. e000246 ◽  
Author(s):  
Adama Sana ◽  
Serge M A Somda ◽  
Nicolas Meda ◽  
Catherine Bouland
Keyword(s):  
Chronic Obstructive Pulmonary Disease ◽  
Pulmonary Disease ◽  
Meta Analysis ◽  
Case Control ◽  
Chronic Obstructive ◽  
Case Control Studies ◽  
Cross Sectional ◽  
Obstructive Pulmonary Disease ◽  
Biomass Smoke ◽  
Cross Sectional Studies

IntroductionChronic obstructive pulmonary disease (COPD) is a major and growing cause of morbidity and mortality worldwide. The global prevalence of COPD is growing faster in women than in men. Women are often exposed to indoor pollutants produced by biomass fuels burning during household activities.MethodsWe conducted a meta-analysis to establish the association between COPD and exposure to biomass smoke in women.Following Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines, we searched MEDLINE and Scopus databases in 31December 2016, with the terms: “wood”, “charcoal”, “biomass”, “solid fuels”, “organic fuel”, “biofuel”, “female”, “women”, “COPD”, “chronic bronchitis”, “emphysema”, “chronic obstructive pulmonary disease”. Studies were eligible if they were case–control or cross-sectional studies involving exposure to indoor biomass smoke, conducted at any time and in any geographic location. Fixed-effects or random-effects meta-analysis was used to generate pooled OR.Results24 studies were included: 5 case–control studies and 19 cross-sectional studies. Biomass-exposed individuals were 1.38 times more likely to be diagnosed with COPD than non-exposed (OR 1.38, 95% CI 1.28 to 1.57).Spirometry-diagnosed COPD studies failed to show a significant association (OR 1.20, 95% CI 0.99 to 1.40). Nevertheless, the summary estimate of OR for chronic bronchitis (CB) was significant (OR 2.11, 95% CI 1.70 to 2.52). The pooled OR for cross-sectional studies and case–control studies were respectively 1.82 (95% CI 1.54 to 2.10) and 1.05 (95% CI 0.81 to 1.30). Significant association was found between COPD and biomass smoke exposure for women living as well in rural as in urban areas.ConclusionsThis study showed that biomass smoke exposure is associated with COPD in rural and urban women.In many developing countries, modern fuels are more and more used alongside traditional ones, mainly in urban area. Data are needed to further explore the benefit of the use of mixed fuels for cooking on respiratory health, particularly on COPD reduction.

scholarly journals Genetic Polymorphism of Angiotensin-Converting Enzyme and Chronic Obstructive Pulmonary Disease Risk: An Updated Meta-Analysis

2016 ◽  
Vol 2016 ◽  
pp. 1-7 ◽  
Author(s):  
Sang Wook Kang ◽  
Su Kang Kim ◽  
Joo-Ho Chung ◽  
Hee-Jae Jung ◽  
Kwan-Il Kim ◽  
...  
Keyword(s):  
Chronic Obstructive Pulmonary Disease ◽  
Pulmonary Disease ◽  
Meta Analysis ◽  
Asian Population ◽  
Caucasian Population ◽  
Chronic Obstructive ◽  
Converting Enzyme ◽  
Deletion Polymorphism ◽  
Obstructive Pulmonary Disease ◽  
The Relationship

The relationship between polymorphism of the angiotensin I converting enzyme (ACE) gene and chronic obstructive pulmonary disease (COPD) has been examined in many previous studies. However, their results were controversial. Therefore, we performed a meta-analysis to evaluate the relationship between theACEgene and the risk of COPD. Fourteen case-control studies were included in this meta-analysis. The pooledpvalue, odds ratio (OR), and 95% confidence interval (95% CI) were used to investigate the strength of the association. The meta-analysis was performed using comprehensive meta-analysis software. Our meta-analysis results revealed that ACE polymorphisms were not related to the risk of COPD (p>0.05in each model). In further analyses based on ethnicity, we observed an association between insertion/deletion polymorphism of theACEgene and risk of COPD in the Asian population (codominant 2, OR = 3.126, 95% CI = 1.919–5.093,p<0.001; recessive, OR = 3.326, 95% CI = 2.190–5.050,p<0.001) but not in the Caucasian population (p>0.05in each model). In conclusion, the present meta-analysis indicated that the insertion/deletion polymorphism of theACEgene may be associated with susceptibility to COPD in the Asian population but not in the Caucasian population. However, the results of the present meta-analysis need to be confirmed in a larger sample.

scholarly journals Safety and efficacy of inpatient pulmonary rehabilitation for patients hospitalised with an acute exacerbation of chronic obstructive pulmonary disease: a systematic review protocol

BMJ Open ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. e043377
Author(s):  
Kai Zhu ◽  
Jagdeep Gill ◽  
Ashley Kirkham ◽  
Joel Chen ◽  
Amy Ellis ◽  
...  
Keyword(s):  
Systematic Review ◽  
Chronic Obstructive Pulmonary Disease ◽  
Pulmonary Disease ◽  
Acute Exacerbation ◽  
Pulmonary Rehabilitation ◽  
Meta Analysis ◽  
Chronic Obstructive ◽  
Obstructive Pulmonary Disease ◽  
Safety And Efficacy

IntroductionPulmonary rehabilitation (PR) following an acute exacerbation of chronic obstructive pulmonary disease (AECOPD) reduces the risk of hospital admissions, and improves physical function and health-related quality of life. However, the safety and efficacy of in-hospital PR during the most acute phase of an AECOPD is not well established. This paper describes the protocol for a systematic review with meta-analysis to determine the safety and efficacy of inpatient acute care PR during the hospitalisation phase.Methods and analysisMedical literature databases and registries MEDLINE, EMBASE, Physiotherapy Evidence Database, Cumulative Index to Nursing and Allied Health Literature, Canadian Agency for Drugs and Technologies in Health, CENTRAL, Allied and Complementary Medicine Database, WHO trials portal and ClinicalTrials.gov will be searched for articles from inception to June 2021 using a prespecified search strategy. We will identify randomised controlled trials that have a comparison of in-hospital PR with usual care. PR programmes had to commence during the hospitalisation and include a minimum of two sessions. Title and abstract followed by full-text screening will be conducted independently by two reviewers. A meta-analysis will be performed if there is sufficient homogeneity across selected studies or groups of studies. The Population, Intervention, Comparator, Outcomes and Study characteristics framework will be used to standardise the data collection process. The quality of the cumulative evidence will be assessed using the Grading of Recommendations, Assessment, Development and Evaluations framework.Ethics and disseminationAECOPD results in physical limitations which are amenable to PR. This review will assess the safety and efficacy of in-hospital PR for AECOPD. The results will be presented in a peer-reviewed publication and at research conferences. Ethical review is not required for this study.

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