Genetic association between TNF-α G-308A and osteoarthritis in Asians: A case-control study and meta-analysis.

<h4>Background</h4>Osteoarthritis (OA) is an important health issue in elderly people. Many studies have suggested that genetic factors are important risk factors for OA, of which tumor necrosis factor-α (TNF-α) is one of the most examined genes. Moreover, several studies have investigat...

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Autores principales:	Chih-Chien Wang, Chih-Yun Huang, Meng-Chang Lee, Dung-Jang Tsai, Chia-Chun Wu, Sui-Lung Su
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/9ee1d1cb222a4229b6eb3b41f43d6783
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spelling	oai:doaj.org-article:9ee1d1cb222a4229b6eb3b41f43d67832021-12-02T20:04:17ZGenetic association between TNF-α G-308A and osteoarthritis in Asians: A case-control study and meta-analysis.1932-620310.1371/journal.pone.0259561https://doaj.org/article/9ee1d1cb222a4229b6eb3b41f43d67832021-01-01T00:00:00Zhttps://doi.org/10.1371/journal.pone.0259561https://doaj.org/toc/1932-6203<h4>Background</h4>Osteoarthritis (OA) is an important health issue in elderly people. Many studies have suggested that genetic factors are important risk factors for OA, of which tumor necrosis factor-α (TNF-α) is one of the most examined genes. Moreover, several studies have investigated the relationship between TNF-α G-308A polymorphisms and OA risk, but consistent results have not been obtained.<h4>Objective</h4>This study examines the association between TNF-α G-308A polymorphisms and knee OA. Moreover, meta-analysis and trial sequential analysis (TSA) was used to determine whether this is a susceptibility gene for knee OA.<h4>Methods</h4>Between 2015 and 2019, 591 knee OA cases and 536 healthy controls were recruited. The Kellgren-Lawrence grading system was used to identify the knee OA cases. A meta-analysis was conducted including related studies published until 2020 from PubMed, Embase, and previous meta-analysis to improve the evidence level of the current study. The results were expressed as odds ratios (ORs) with corresponding 95% confidence intervals (CI) to evaluate the effect of this polymorphism on knee OA risk. The TSA was used to estimate the sample sizes required in this issue.<h4>Results</h4>A nonsignificant association was found between the AA genotype and knee OA [adjusted OR, 0.84; 95% CI, 0.62-1.15) in the recessive model] in the present case-control study, and analysis of other genetic models showed a similar trend. After adding the critical case-control samples for Asians, the TNF-α G-308A, AA genotype exhibited 2.57 times more risk of developing arthritis when compared with the GG + GA genotype (95% CI, 1.56-4.23), and the cumulative samples for TSA (n = 2182) were sufficient to obtain a definite conclusion.<h4>Conclusions</h4>The results of this meta-analysis revealed that the TNF-α G-308A, AA genotype is a susceptible genotype for OA in the Asian population. This study integrated all current evidence to arrive at this conclusion, suggesting that future studies on Asians are not required.Chih-Chien WangChih-Yun HuangMeng-Chang LeeDung-Jang TsaiChia-Chun WuSui-Lung SuPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 16, Iss 11, p e0259561 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Chih-Chien Wang Chih-Yun Huang Meng-Chang Lee Dung-Jang Tsai Chia-Chun Wu Sui-Lung Su Genetic association between TNF-α G-308A and osteoarthritis in Asians: A case-control study and meta-analysis.
description	<h4>Background</h4>Osteoarthritis (OA) is an important health issue in elderly people. Many studies have suggested that genetic factors are important risk factors for OA, of which tumor necrosis factor-α (TNF-α) is one of the most examined genes. Moreover, several studies have investigated the relationship between TNF-α G-308A polymorphisms and OA risk, but consistent results have not been obtained.<h4>Objective</h4>This study examines the association between TNF-α G-308A polymorphisms and knee OA. Moreover, meta-analysis and trial sequential analysis (TSA) was used to determine whether this is a susceptibility gene for knee OA.<h4>Methods</h4>Between 2015 and 2019, 591 knee OA cases and 536 healthy controls were recruited. The Kellgren-Lawrence grading system was used to identify the knee OA cases. A meta-analysis was conducted including related studies published until 2020 from PubMed, Embase, and previous meta-analysis to improve the evidence level of the current study. The results were expressed as odds ratios (ORs) with corresponding 95% confidence intervals (CI) to evaluate the effect of this polymorphism on knee OA risk. The TSA was used to estimate the sample sizes required in this issue.<h4>Results</h4>A nonsignificant association was found between the AA genotype and knee OA [adjusted OR, 0.84; 95% CI, 0.62-1.15) in the recessive model] in the present case-control study, and analysis of other genetic models showed a similar trend. After adding the critical case-control samples for Asians, the TNF-α G-308A, AA genotype exhibited 2.57 times more risk of developing arthritis when compared with the GG + GA genotype (95% CI, 1.56-4.23), and the cumulative samples for TSA (n = 2182) were sufficient to obtain a definite conclusion.<h4>Conclusions</h4>The results of this meta-analysis revealed that the TNF-α G-308A, AA genotype is a susceptible genotype for OA in the Asian population. This study integrated all current evidence to arrive at this conclusion, suggesting that future studies on Asians are not required.
format	article
author	Chih-Chien Wang Chih-Yun Huang Meng-Chang Lee Dung-Jang Tsai Chia-Chun Wu Sui-Lung Su
author_facet	Chih-Chien Wang Chih-Yun Huang Meng-Chang Lee Dung-Jang Tsai Chia-Chun Wu Sui-Lung Su
author_sort	Chih-Chien Wang
title	Genetic association between TNF-α G-308A and osteoarthritis in Asians: A case-control study and meta-analysis.
title_short	Genetic association between TNF-α G-308A and osteoarthritis in Asians: A case-control study and meta-analysis.
title_full	Genetic association between TNF-α G-308A and osteoarthritis in Asians: A case-control study and meta-analysis.
title_fullStr	Genetic association between TNF-α G-308A and osteoarthritis in Asians: A case-control study and meta-analysis.
title_full_unstemmed	Genetic association between TNF-α G-308A and osteoarthritis in Asians: A case-control study and meta-analysis.
title_sort	genetic association between tnf-α g-308a and osteoarthritis in asians: a case-control study and meta-analysis.
publisher	Public Library of Science (PLoS)
publishDate	2021
url	https://doaj.org/article/9ee1d1cb222a4229b6eb3b41f43d6783
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Genetic association between TNF-α G-308A and osteoarthritis in Asians: A case-control study and meta-analysis.

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