Relationship between bullous pemphigoid and metabolic syndrome and its relevant traits: a bidirectional two-sample Mendelian randomization study.

Arch Dermatol Res

Department of Dermatology, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, National Clinical Research Center for Dermatologic and Immunologic Diseases, No.1 Shuai Fu Yuan Street, Dong Cheng District, Beijing, 100730, China.

Published: January 2025

AI Article Synopsis

  • Bullous pemphigoid (BP) is a chronic autoimmune blistering disease primarily affecting older adults, while metabolic syndrome (MetS) encompasses various metabolic disorders.
  • Previous observational studies have suggested a link between BP and MetS, but the results are inconsistent due to potential biases from confounding factors like corticosteroid use or age.
  • This study utilized Mendelian randomization (MR) to explore the causal relationship between BP and MetS, using genetic data, and found no significant causal association between the two or their related traits.

Article Abstract

Bullous pemphigoid (BP) is a chronic autoimmune subepidermal blistering disease, affecting mostly the elderly. Metabolic syndrome (MetS) is a set of metabolic disorders including obesity, hypertension, glucose intolerance, and dyslipidemia. Observational studies have revealed a correlation between BP and MetS with controversial results and the causal relationship needs to be clarified. In the study of BP and MetS, observational investigations are prone to be biased by confounding factors such as the use of corticosteroids or age. However, Mendelian randomization (MR) is less susceptible to confounding factors and reverse causality. In this study, we aimed to use two-sample MR to investigate the causal correlation between BP and MetS from a genetic perspective. We used genome-wide association study (GWAS) data of BP, MetS, and its relevant traits to perform the analysis. The relevant traits consisted of four aspects, including central obesity, hypertension, impaired glucose tolerance, and dyslipidemia. In the results, it demonstrated no causal association of BP on the risk of MetS or its relevant traits and it revealed no significant linkage in the reverse procedure. This analysis enriched the research on the association of BP and MetS and provided evidence from a genetic perspective.

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Source
http://dx.doi.org/10.1007/s00403-024-03704-8DOI Listing

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