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Causal association between adiposity and hemorrhoids: a Mendelian randomization study
BACKGROUND: Hemorrhoids are a very common anorectal disorder affecting a large number of individuals throughout the world. This study aimed to evaluate the causal effects of four adiposity traits including body mass index (BMI), body fat percentage, waist circumference, and waist-to-hip ratio on hem...
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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Frontiers Media S.A.
2023
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10587414/ https://www.ncbi.nlm.nih.gov/pubmed/37869154 http://dx.doi.org/10.3389/fmed.2023.1229925 |
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author | Huang, Jian Gui, Ying Qin, Hongping Xie, Yubo |
author_facet | Huang, Jian Gui, Ying Qin, Hongping Xie, Yubo |
author_sort | Huang, Jian |
collection | PubMed |
description | BACKGROUND: Hemorrhoids are a very common anorectal disorder affecting a large number of individuals throughout the world. This study aimed to evaluate the causal effects of four adiposity traits including body mass index (BMI), body fat percentage, waist circumference, and waist-to-hip ratio on hemorrhoids by Mendelian randomization (MR). METHODS: We used summary statistics of BMI (N = 461,460), body fat percentage (N = 454,633), waist circumference (N = 462,166), waist-to-hip ratio (N = 212,244), and hemorrhoids (N = 337,199) from large-scale genome wide association studies of European ancestry. Univariable and multivariable MR were carried out to infer causality. The MR Steiger directionality test was used to test the causal direction. RESULTS: The primary MR analysis using the inverse variance weighted (IVW) method showed that there were positive effects of genetically determined BMI [odds ratio (OR) = 1.005, 95% confidence interval (CI): 1.003–1.008, per standard deviation (SD), p = 7.801 × 10(−5)], body fat percentage (OR = 1.005, 95% CI: 1.001–1.008, per SD, p = 0.008), waist circumference (OR = 1.008, 95% CI: 1.005–1.011, per SD, p = 1.051 × 10(−6)), and waist-to-hip ratio (OR = 1.010, 95% CI: 1.003–1.017, per SD, p = 0.003) on hemorrhoids. These findings were robust in multivariable MR adjusting for physical activity. The Steiger directionality test showed evidence against reverse causation. CONCLUSION: Our MR study supports a causal role of adiposity in the development of hemorrhoids. Adiposity prevention may be an important strategy for reducing hemorrhoids risk. |
format | Online Article Text |
id | pubmed-10587414 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | Frontiers Media S.A. |
record_format | MEDLINE/PubMed |
spelling | pubmed-105874142023-10-21 Causal association between adiposity and hemorrhoids: a Mendelian randomization study Huang, Jian Gui, Ying Qin, Hongping Xie, Yubo Front Med (Lausanne) Medicine BACKGROUND: Hemorrhoids are a very common anorectal disorder affecting a large number of individuals throughout the world. This study aimed to evaluate the causal effects of four adiposity traits including body mass index (BMI), body fat percentage, waist circumference, and waist-to-hip ratio on hemorrhoids by Mendelian randomization (MR). METHODS: We used summary statistics of BMI (N = 461,460), body fat percentage (N = 454,633), waist circumference (N = 462,166), waist-to-hip ratio (N = 212,244), and hemorrhoids (N = 337,199) from large-scale genome wide association studies of European ancestry. Univariable and multivariable MR were carried out to infer causality. The MR Steiger directionality test was used to test the causal direction. RESULTS: The primary MR analysis using the inverse variance weighted (IVW) method showed that there were positive effects of genetically determined BMI [odds ratio (OR) = 1.005, 95% confidence interval (CI): 1.003–1.008, per standard deviation (SD), p = 7.801 × 10(−5)], body fat percentage (OR = 1.005, 95% CI: 1.001–1.008, per SD, p = 0.008), waist circumference (OR = 1.008, 95% CI: 1.005–1.011, per SD, p = 1.051 × 10(−6)), and waist-to-hip ratio (OR = 1.010, 95% CI: 1.003–1.017, per SD, p = 0.003) on hemorrhoids. These findings were robust in multivariable MR adjusting for physical activity. The Steiger directionality test showed evidence against reverse causation. CONCLUSION: Our MR study supports a causal role of adiposity in the development of hemorrhoids. Adiposity prevention may be an important strategy for reducing hemorrhoids risk. Frontiers Media S.A. 2023-10-06 /pmc/articles/PMC10587414/ /pubmed/37869154 http://dx.doi.org/10.3389/fmed.2023.1229925 Text en Copyright © 2023 Huang, Gui, Qin and Xie. https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms. |
spellingShingle | Medicine Huang, Jian Gui, Ying Qin, Hongping Xie, Yubo Causal association between adiposity and hemorrhoids: a Mendelian randomization study |
title | Causal association between adiposity and hemorrhoids: a Mendelian randomization study |
title_full | Causal association between adiposity and hemorrhoids: a Mendelian randomization study |
title_fullStr | Causal association between adiposity and hemorrhoids: a Mendelian randomization study |
title_full_unstemmed | Causal association between adiposity and hemorrhoids: a Mendelian randomization study |
title_short | Causal association between adiposity and hemorrhoids: a Mendelian randomization study |
title_sort | causal association between adiposity and hemorrhoids: a mendelian randomization study |
topic | Medicine |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10587414/ https://www.ncbi.nlm.nih.gov/pubmed/37869154 http://dx.doi.org/10.3389/fmed.2023.1229925 |
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