Dried fruit intake causally protects against low back pain: A Mendelian randomization study
BackgroundLow back pain is the leading cause of years lived with disability worldwide. The aim of this study was to evaluate whether dried fruit intake causally protects against low back pain using two-sample Mendelian randomization (MR).MethodsWe obtained summary-level data for dried fruit intake (...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2023-03-01
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| Series: | Frontiers in Nutrition |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fnut.2023.1027481/full |
| _version_ | 1797862127798583296 |
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| author | Jian Huang Zheng-Fu Xie |
| author_facet | Jian Huang Zheng-Fu Xie |
| author_sort | Jian Huang |
| collection | DOAJ |
| description | BackgroundLow back pain is the leading cause of years lived with disability worldwide. The aim of this study was to evaluate whether dried fruit intake causally protects against low back pain using two-sample Mendelian randomization (MR).MethodsWe obtained summary-level data for dried fruit intake (N = 421,764) from the IEU Open GWAS Project. Forty-one independent genetic variants proxied dried fruit intake. The corresponding data for low back pain were derived from the FinnGen project (13,178 cases and 164,682 controls; discovery data) and the Neale lab (5,423 cases and 355,771 controls; replication data). We conducted univariable and multivariable MR analyses.ResultsIn the univariable MR analysis, the inverse variance weighted estimate showed that greater dried fruit intake was associated with decreased risk of low back pain [odds ratio (OR) = 0.435, 95% confidence interval (CI): 0.287–0.659, P = 8.657 × 10−5]. Sensitivity analyses using the MR-Egger (OR = 0.078, 95% CI: 0.013–0.479, P = 0.009), maximum likelihood (OR = 0.433, 95% CI: 0.295–0.635, P = 1.801 × 10−5), weighted median (OR = 0.561, 95% CI: 0.325–0.967, P = 0.038) and Mendelian Randomization Pleiotropy RESidual Sum and Outlier (MR-PRESSO) (OR = 0.454, 95% CI: 0.302–0.683, P = 4.535 × 10−4) methods showed consistent results. No evidence of directional pleiotropy was identified according to the Egger intercept (intercept P-value = 0.065) or applying the MR-PRESSO method (global test P-value = 0.164). The replication analysis yielded similar results. The multivariable MR revealed that the inverse association between dried fruit intake and low back pain was consistent after adjustment for fresh fruit intake, body mass index, current tobacco smoking, alcohol intake frequency, total body bone mineral density, serum 25-hydroxyvitamin D levels, and vigorous physical activity.ConclusionThis MR study provides evidence to support that dried fruit intake causally protects against low back pain. |
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| format | Article |
| id | doaj.art-a51e27e7c8eb4da08a16703efc684f78 |
| institution | Directory Open Access Journal |
| issn | 2296-861X |
| language | English |
| last_indexed | 2024-04-09T22:14:16Z |
| publishDate | 2023-03-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Nutrition |
| spelling | doaj.art-a51e27e7c8eb4da08a16703efc684f782023-03-23T05:10:28ZengFrontiers Media S.A.Frontiers in Nutrition2296-861X2023-03-011010.3389/fnut.2023.10274811027481Dried fruit intake causally protects against low back pain: A Mendelian randomization studyJian Huang0Zheng-Fu Xie1Clinical Laboratory Center, The First Affiliated Hospital of Guangxi Medical University, Nanning, ChinaGeriatrics Department, The First Affiliated Hospital of Guangxi Medical University, Nanning, ChinaBackgroundLow back pain is the leading cause of years lived with disability worldwide. The aim of this study was to evaluate whether dried fruit intake causally protects against low back pain using two-sample Mendelian randomization (MR).MethodsWe obtained summary-level data for dried fruit intake (N = 421,764) from the IEU Open GWAS Project. Forty-one independent genetic variants proxied dried fruit intake. The corresponding data for low back pain were derived from the FinnGen project (13,178 cases and 164,682 controls; discovery data) and the Neale lab (5,423 cases and 355,771 controls; replication data). We conducted univariable and multivariable MR analyses.ResultsIn the univariable MR analysis, the inverse variance weighted estimate showed that greater dried fruit intake was associated with decreased risk of low back pain [odds ratio (OR) = 0.435, 95% confidence interval (CI): 0.287–0.659, P = 8.657 × 10−5]. Sensitivity analyses using the MR-Egger (OR = 0.078, 95% CI: 0.013–0.479, P = 0.009), maximum likelihood (OR = 0.433, 95% CI: 0.295–0.635, P = 1.801 × 10−5), weighted median (OR = 0.561, 95% CI: 0.325–0.967, P = 0.038) and Mendelian Randomization Pleiotropy RESidual Sum and Outlier (MR-PRESSO) (OR = 0.454, 95% CI: 0.302–0.683, P = 4.535 × 10−4) methods showed consistent results. No evidence of directional pleiotropy was identified according to the Egger intercept (intercept P-value = 0.065) or applying the MR-PRESSO method (global test P-value = 0.164). The replication analysis yielded similar results. The multivariable MR revealed that the inverse association between dried fruit intake and low back pain was consistent after adjustment for fresh fruit intake, body mass index, current tobacco smoking, alcohol intake frequency, total body bone mineral density, serum 25-hydroxyvitamin D levels, and vigorous physical activity.ConclusionThis MR study provides evidence to support that dried fruit intake causally protects against low back pain.https://www.frontiersin.org/articles/10.3389/fnut.2023.1027481/fullMendelian randomizationlow back paindried fruit intakegenome-wide association studiessummary statistics |
| spellingShingle | Jian Huang Zheng-Fu Xie Dried fruit intake causally protects against low back pain: A Mendelian randomization study Frontiers in Nutrition Mendelian randomization low back pain dried fruit intake genome-wide association studies summary statistics |
| title | Dried fruit intake causally protects against low back pain: A Mendelian randomization study |
| title_full | Dried fruit intake causally protects against low back pain: A Mendelian randomization study |
| title_fullStr | Dried fruit intake causally protects against low back pain: A Mendelian randomization study |
| title_full_unstemmed | Dried fruit intake causally protects against low back pain: A Mendelian randomization study |
| title_short | Dried fruit intake causally protects against low back pain: A Mendelian randomization study |
| title_sort | dried fruit intake causally protects against low back pain a mendelian randomization study |
| topic | Mendelian randomization low back pain dried fruit intake genome-wide association studies summary statistics |
| url | https://www.frontiersin.org/articles/10.3389/fnut.2023.1027481/full |
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