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Pan J, Lv Y, Wang L, Chang X, Zhao K, Liu X. Mendelian randomization analysis of psoriasis and psoriatic arthritis associated with risks of ulcerative colitis. Skin Res Technol 2024; 30:e13795. [PMID: 38995229 PMCID: PMC11242227 DOI: 10.1111/srt.13795] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2024] [Accepted: 05/27/2024] [Indexed: 07/13/2024]
Abstract
OBJECTIVE This study is designed to explore the potential causal relationship between psoriasis and psoriatic arthritis (PsA) while investigating the genetic basis shared by these inflammatory diseases. METHODS Significant single nucleotide polymorphisms (SNPs) associated with UC, psoriasis, and PsA were selected as genetic instrumental variables using Genome-Wide Association Study (GWAS) datasets. Additionally, Mendelian randomization (MR) methods, including inverse-variance weighting (IVW), MR-Egger regression, and Weighted Median (WME), were utilized to evaluate the causal relationships between these diseases. Moreover, sensitivity analysis and heterogeneity testing were conducted to validate the stability of the results. RESULTS A total of 123 significant SNPs associated with psoriasis, PsA, and UC were identified as genetic instrumental variables based on GWAS datasets. The analysis revealed a 36% increased risk of UC with psoriasis (odds ratio [OR] = 1.350, 95% confidence interval [CI] = 1.065-1.729, P = 0.012) and a 32.9% increased risk of UC with PsA (OR = 1.329, 95% CI = 1.176-1.592, P < 0.001). Further analysis showed a 43.5% increased risk of psoriasis with UC (OR = 1.435, 95% CI = 1.274-1.831, P < 0.001) and a 45.8% increased risk of PsA with UC (OR = 1.458, 95% CI = 1.166-1.822, P = 0.0013). In addition, sensitivity analysis and heterogeneity testing demonstrated the high stability of these results. Particularly, neither MR-Egger regression analysis nor leave-one-out analysis revealed significant heterogeneity or pleiotropy bias, indicating the reliability of these causal estimates. Moreover, the use of the MR-PRESSO further confirmed the positive correlation between psoriasis and UC, and the corrected estimates remained consistent with IVW analysis results after excluding potential outlier SNPs, enhancing the credibility of the analysis. CONCLUSIONS This study strengthens the understanding of the genetic and causal relationships among UC, psoriasis, and PsA through GWAS and MR methods, revealing the genetic basis they may share. These findings not only provide a novel perspective on the comorbidity mechanisms of these diseases but also offer a valuable reference for the development of future treatment strategies and intervention measures.
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Affiliation(s)
- Jing Pan
- Department of Dermatology and VenereologyBeijing Jishuitan HospitalCapital Medical UniversityBeijingChina
| | - Yanwei Lv
- Department of Clinical Epidemiology Research CenterBeijing Jishuitan HospitalCapital Medical UniversityBeijingChina
| | - Lingyan Wang
- Department of Dermatology and VenereologyBeijing Jishuitan HospitalCapital Medical UniversityBeijingChina
| | - Xiaodan Chang
- Department of Dermatology and VenereologyBeijing Jishuitan HospitalCapital Medical UniversityBeijingChina
| | - Kaiping Zhao
- Department of Medical Record StatisticsBeijing Jishuitan HospitalCapital Medical UniversityBeijingChina
| | - Xiao Liu
- Department of Dermatology and VenereologyBeijing Jishuitan HospitalCapital Medical UniversityBeijingChina
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Mendelian Randomization Studies in Psoriasis and Psoriatic Arthritis: A Systematic Review. J Invest Dermatol 2023; 143:762-776.e3. [PMID: 36822971 DOI: 10.1016/j.jid.2022.11.014] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2022] [Revised: 11/21/2022] [Accepted: 11/24/2022] [Indexed: 02/25/2023]
Abstract
Psoriasis (PSO) and psoriatic arthritis (PSA) are inflammatory diseases with complex genetic and environmental contributions. Although studies have identified environmental and clinical associations with PSO/PSA, causality is difficult to establish. Mendelian randomization (MR) employs the random assortment of genetic alleles at birth to evaluate the causal impact of exposures. We systematically reviewed 27 MR studies in PSO/PSA examining health behaviors, comorbidities, and biomarkers. Exposures, including smoking, obesity, cardiovascular disease, and Crohn's disease, were causal for PSO and PSA, whereas PSO was causally associated with several comorbidities. These findings provide insights that can guide preventive counseling and precision medicine.
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Arleevskaya M, Takha E, Petrov S, Kazarian G, Novikov A, Larionova R, Valeeva A, Shuralev E, Mukminov M, Bost C, Renaudineau Y. Causal risk and protective factors in rheumatoid arthritis: A genetic update. J Transl Autoimmun 2021; 4:100119. [PMID: 34522877 PMCID: PMC8424591 DOI: 10.1016/j.jtauto.2021.100119] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Accepted: 08/30/2021] [Indexed: 02/08/2023] Open
Abstract
The characterization of risk and protective factors in complex diseases such as rheumatoid arthritis (RA) has evolved from epidemiological studies, which test association, to the use of Mendelian randomization approaches, which test direct relationships. Indeed, direct associations with the mucosal origin of RA are retrieved with periodontal disease (Porphyromonas gingivalis and Aggregatibacter actinomycetemcomitans predominantly), interstitial lung involvement, tobacco smoking and air pollutants. Next, factors directly associated with an acquired immune response include genetic factors (HLA DRB1, PTPN22), capacity to produce anti-modified protein antibodies (AMPA), and relatives with a history of autoimmune diseases. Finally, factors can be also classified according to their direct capacity to interfere with the IL-6/CRP/sIL-IL6R proinflammatory pathway as risk factor (body fat, cardiometabolic factors, type 2 diabetes, depressive syndrome) or either as protective factors by controlling of sIL-6R levels (higher education level, and intelligence). Although some co-founders have been characterized (e.g. vitamin D, physical activity, cancer) the direct association with sex-discrepancy, pregnancy, and infections among other factors remains to be better explored.
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Affiliation(s)
- M Arleevskaya
- Central Research Laboratory, Kazan State Medical Academy, Kazan, Russia.,Institute of Fundamental Medicine and Biology, Kazan (Volga Region) Federal University, Kazan, Russia
| | - E Takha
- Central Research Laboratory, Kazan State Medical Academy, Kazan, Russia
| | - S Petrov
- Central Research Laboratory, Kazan State Medical Academy, Kazan, Russia.,Institute of Environmental Sciences, Kazan (Volga Region) Federal University, Kazan, Russia
| | - G Kazarian
- Central Research Laboratory, Kazan State Medical Academy, Kazan, Russia
| | - A Novikov
- Sobolev Institute of Mathematics, Siberian Branch of Russian Academy of Science, Russia
| | - R Larionova
- Central Research Laboratory, Kazan State Medical Academy, Kazan, Russia.,Institute of Fundamental Medicine and Biology, Kazan (Volga Region) Federal University, Kazan, Russia
| | - A Valeeva
- Central Research Laboratory, Kazan State Medical Academy, Kazan, Russia
| | - E Shuralev
- Central Research Laboratory, Kazan State Medical Academy, Kazan, Russia.,Institute of Environmental Sciences, Kazan (Volga Region) Federal University, Kazan, Russia.,Kazan State Academy of Veterinary Medicine Named After N.E. Bauman, Kazan, Russia
| | - M Mukminov
- Central Research Laboratory, Kazan State Medical Academy, Kazan, Russia.,Institute of Environmental Sciences, Kazan (Volga Region) Federal University, Kazan, Russia
| | - C Bost
- CHU Toulouse, INSERM U1291, CNRS U5051, University Toulouse III, Toulouse, France
| | - Y Renaudineau
- Central Research Laboratory, Kazan State Medical Academy, Kazan, Russia.,CHU Toulouse, INSERM U1291, CNRS U5051, University Toulouse III, Toulouse, France
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