Causal Relationship Between Basal Metabolic Rate and Alzheimer’s Disease: A Bidirectional Two-sample Mendelian Randomization Study

Abstract Introduction Objective observational studies have shown that basal metabolic rate (BMR) decreases in patients with Alzheimer’s disease (AD), but the causal relationship between BMR and AD has not been established. We determined the causal relationship between BMR and AD by two-way Mendelian...

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Main Authors: Yuexiao Zou, Qingxian Wang, Xiaorui Cheng
Format: Article
Language:English
Published: Adis, Springer Healthcare 2023-03-01
Series:Neurology and Therapy
Subjects:
Online Access:https://doi.org/10.1007/s40120-023-00458-9
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author Yuexiao Zou
Qingxian Wang
Xiaorui Cheng
author_facet Yuexiao Zou
Qingxian Wang
Xiaorui Cheng
author_sort Yuexiao Zou
collection DOAJ
description Abstract Introduction Objective observational studies have shown that basal metabolic rate (BMR) decreases in patients with Alzheimer’s disease (AD), but the causal relationship between BMR and AD has not been established. We determined the causal relationship between BMR and AD by two-way Mendelian randomization (MR) and investigated the impact of factors associated with BMR on AD. Methods We obtained BMR (n = 454,874) and AD from a large genome-wide association study (GWAS) database (21,982 patients with AD, 41,944 controls). The causal relationship between AD and BMR was investigated using two-way MR. Additionally, we identified the causal relationship between AD and factors related with BMR, hyperthyroidism (hy/thy) and type 2 diabetes (T2D), height and weight. Results BMR had a causal relationship with AD [451 single nucleotide polymorphisms (SNPs), odds ratio (OR) 0.749, 95% confidence intervals (CIs) 0.663–0.858, P = 2.40E-03]. There was no causal relationship between hy/thy or T2D and AD (P > 0.05). The bidirectional MR showed that there was also a causal relationship between AD and BMR (OR 0.992, Cls 0.987–0.997, N SNPs18, P = 1.50E−03). BMR, height and weight have a protective effect on AD. Based on MVMR analysis, we found that genetically determined height and weight may be adjusted by BMR to have a causal effect on AD, not height and weight themselves. Conclusion Our study showed that higher BMR reduced the risk of AD, and patients with AD had a lower BMR. Because of a positive correlation with BMR, height and weight may have a protective effect on AD. The two metabolism-related diseases, hy/thy and T2D, had no causal relationship with AD.
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spelling doaj.art-b6ec67ffd6484153b1455d9458d982cc2023-05-21T11:30:46ZengAdis, Springer HealthcareNeurology and Therapy2193-82532193-65362023-03-0112376377610.1007/s40120-023-00458-9Causal Relationship Between Basal Metabolic Rate and Alzheimer’s Disease: A Bidirectional Two-sample Mendelian Randomization StudyYuexiao Zou0Qingxian Wang1Xiaorui Cheng2Innovative Institute of Chinese Medicine and Pharmacy, Shandong University of Traditional Chinese MedicineInnovative Institute of Chinese Medicine and Pharmacy, Shandong University of Traditional Chinese MedicineInnovative Institute of Chinese Medicine and Pharmacy, Shandong University of Traditional Chinese MedicineAbstract Introduction Objective observational studies have shown that basal metabolic rate (BMR) decreases in patients with Alzheimer’s disease (AD), but the causal relationship between BMR and AD has not been established. We determined the causal relationship between BMR and AD by two-way Mendelian randomization (MR) and investigated the impact of factors associated with BMR on AD. Methods We obtained BMR (n = 454,874) and AD from a large genome-wide association study (GWAS) database (21,982 patients with AD, 41,944 controls). The causal relationship between AD and BMR was investigated using two-way MR. Additionally, we identified the causal relationship between AD and factors related with BMR, hyperthyroidism (hy/thy) and type 2 diabetes (T2D), height and weight. Results BMR had a causal relationship with AD [451 single nucleotide polymorphisms (SNPs), odds ratio (OR) 0.749, 95% confidence intervals (CIs) 0.663–0.858, P = 2.40E-03]. There was no causal relationship between hy/thy or T2D and AD (P > 0.05). The bidirectional MR showed that there was also a causal relationship between AD and BMR (OR 0.992, Cls 0.987–0.997, N SNPs18, P = 1.50E−03). BMR, height and weight have a protective effect on AD. Based on MVMR analysis, we found that genetically determined height and weight may be adjusted by BMR to have a causal effect on AD, not height and weight themselves. Conclusion Our study showed that higher BMR reduced the risk of AD, and patients with AD had a lower BMR. Because of a positive correlation with BMR, height and weight may have a protective effect on AD. The two metabolism-related diseases, hy/thy and T2D, had no causal relationship with AD.https://doi.org/10.1007/s40120-023-00458-9Basal metabolic rateAlzheimer’s diseaseMendelian randomizationCausal relationship
spellingShingle Yuexiao Zou
Qingxian Wang
Xiaorui Cheng
Causal Relationship Between Basal Metabolic Rate and Alzheimer’s Disease: A Bidirectional Two-sample Mendelian Randomization Study
Neurology and Therapy
Basal metabolic rate
Alzheimer’s disease
Mendelian randomization
Causal relationship
title Causal Relationship Between Basal Metabolic Rate and Alzheimer’s Disease: A Bidirectional Two-sample Mendelian Randomization Study
title_full Causal Relationship Between Basal Metabolic Rate and Alzheimer’s Disease: A Bidirectional Two-sample Mendelian Randomization Study
title_fullStr Causal Relationship Between Basal Metabolic Rate and Alzheimer’s Disease: A Bidirectional Two-sample Mendelian Randomization Study
title_full_unstemmed Causal Relationship Between Basal Metabolic Rate and Alzheimer’s Disease: A Bidirectional Two-sample Mendelian Randomization Study
title_short Causal Relationship Between Basal Metabolic Rate and Alzheimer’s Disease: A Bidirectional Two-sample Mendelian Randomization Study
title_sort causal relationship between basal metabolic rate and alzheimer s disease a bidirectional two sample mendelian randomization study
topic Basal metabolic rate
Alzheimer’s disease
Mendelian randomization
Causal relationship
url https://doi.org/10.1007/s40120-023-00458-9
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AT xiaoruicheng causalrelationshipbetweenbasalmetabolicrateandalzheimersdiseaseabidirectionaltwosamplemendelianrandomizationstudy