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Elhage KG, Kranyak A, Jin JQ, Haran K, Spencer RK, Smith PL, Davis MS, Hakimi M, Bhutani T, Liao W. Mendelian Randomization Studies in Atopic Dermatitis: A Systematic Review. J Invest Dermatol 2024; 144:1022-1037. [PMID: 37977498 DOI: 10.1016/j.jid.2023.10.016] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Revised: 10/17/2023] [Accepted: 10/22/2023] [Indexed: 11/19/2023]
Abstract
Prior studies have found associations between atopic dermatitis (AD) and comorbidities, including depression, obesity, asthma, and allergic rhinitis. Although observational studies often cannot establish robust causality between potential risk factors and AD, Mendelian randomization minimizes confounding when exploring causality by relying on random allelic assortment at birth. In this study, we systematically reviewed 30 Mendelian randomization studies in AD. Body mass index, gut microbial flora, the IL-18 signaling pathway, and gastroesophageal reflux disease were among the causal factors for AD, whereas AD was causal for several medical conditions, including heart failure, rheumatoid arthritis, and conjunctivitis. These insights may improve preventive counseling in AD.
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Affiliation(s)
- Kareem G Elhage
- Department of Dermatology, University of California San Francisco, San Francisco, California, USA
| | - Allison Kranyak
- Department of Dermatology, University of California San Francisco, San Francisco, California, USA
| | - Joy Q Jin
- Department of Dermatology, University of California San Francisco, San Francisco, California, USA; School of Medicine, University of California San Francisco, San Francisco, California, USA
| | - Kathryn Haran
- Department of Dermatology, University of California San Francisco, San Francisco, California, USA
| | - Riley K Spencer
- Department of Dermatology, University of California San Francisco, San Francisco, California, USA
| | - Payton L Smith
- Department of Dermatology, University of California San Francisco, San Francisco, California, USA
| | - Mitchell S Davis
- Department of Dermatology, University of California San Francisco, San Francisco, California, USA
| | - Marwa Hakimi
- Department of Dermatology, University of California San Francisco, San Francisco, California, USA
| | - Tina Bhutani
- Department of Dermatology, University of California San Francisco, San Francisco, California, USA
| | - Wilson Liao
- Department of Dermatology, University of California San Francisco, San Francisco, California, USA; Institute for Human Genetics, University of California San Francisco, San Francisco, California, USA.
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Ayasse MT, Ahmed A, Espinosa ML, Walker CJ, Yousaf M, Thyssen JP, Silverberg JI. What are the highest yielding search strategy terms for systematic reviews in atopic dermatitis? A systematic review. Arch Dermatol Res 2021; 313:737-750. [PMID: 33221950 DOI: 10.1007/s00403-020-02165-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Revised: 10/16/2020] [Accepted: 10/30/2020] [Indexed: 12/30/2022]
Abstract
The impact of search strategies on systematic reviews (SR) of atopic dermatitis (AD) is unknown. The purpose of this review was to evaluate search strategies used in SR of AD and their impact on the frequency of manuscripts identified. MEDLINE and EMBASE were searched for SR related to AD. Simulations were performed by running combinations of search terms in MEDLINE and EMBASE. Overall, 250 SR met inclusion criteria, of which 225 specified search strategies. SR using 5-6 terms (20.0% to 12.1%) or ≥ 7 (40.0% to 18.8%) terms decreased, whereas SR using 3-4 terms numerically increased (18.8% to 30.2%) and 1-2 terms remained similar (37.5% to 38.9%) from 1999-2009 to 2015-2019. The most commonly searched terms were "atopic dermatitis" (n = 166), followed by "eczema" (n = 156), "dermatitis atopic'" (n = 81), "atopic eczema" (n = 74), "neurodermatitis" (n = 59), "Besniers prurigo" (n = 29), "infantile eczema" (n = 27), and "childhood eczema" (n = 19). Simulations revealed that "eczema" and "atopic dermatitis" yielded the most hits. The number of search terms that maximized hits in MEDLINE and EMBASE was 5 and 4, respectively. Search strategies for AD were heterogeneous, with high proportions of search strategies providing few search hits. Future studies should use standardized and optimized search terms.
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Affiliation(s)
- Marissa T Ayasse
- Department of Dermatology, The George Washington University School of Medicine and Health Sciences, 2150 Pennsylvania Avenue NW, Suite 2B-425, Washington, DC, 20037, USA
| | - Adnan Ahmed
- Department of Dermatology, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Maria L Espinosa
- Department of Dermatology, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Christina J Walker
- Department of Dermatology, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Muhammad Yousaf
- Department of Dermatology, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Jacob P Thyssen
- Department of Dermatology and Allergy, Herlev and Gentofte Hospital, University of Copenhagen, Hellerup, Denmark
| | - Jonathan I Silverberg
- Department of Dermatology, The George Washington University School of Medicine and Health Sciences, 2150 Pennsylvania Avenue NW, Suite 2B-425, Washington, DC, 20037, USA.
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Hale G, Davies E, Grindlay DJC, Rogers NK, Harman KE. What’s new in atopic eczema? An analysis of systematic reviews published in 2017. Part 2: epidemiology, aetiology and risk factors. Clin Exp Dermatol 2019; 44:868-873. [DOI: 10.1111/ced.14075] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/23/2019] [Indexed: 12/12/2022]
Affiliation(s)
- G. Hale
- Royal Hallamshire Hospital Sheffield Teaching Hospitals NHS Foundation Trust Sheffield UK
| | - E. Davies
- Department of Dermatology Countess of Chester Hospital Chester UK
| | - D. J. C. Grindlay
- Centre of Evidence Based Dermatology University of Nottingham King’s Meadow Campus Nottingham UK
| | - N. K. Rogers
- Centre of Evidence Based Dermatology University of Nottingham King’s Meadow Campus Nottingham UK
| | - K. E. Harman
- Centre of Evidence Based Dermatology University of Nottingham King’s Meadow Campus Nottingham UK
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