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Tanjung, C.* ; Rzehak, P.* ; Mansyur, M.* ; Munasir, Z.* ; Sudoyo, H.* ; Immanuel, S.* ; Irawan, R.* ; Reischl, E. ; Demmelmair, H.* ; Koletzko, B.* ; Hadinegoro, S.R.* ; Sjarif, D.R.*

Study protocol to investigate the environmental and genetic aetiology of atopic dermatitis: The Indonesian Prospective Study of Atopic Dermatitis in Infants (ISADI).

BMJ Open 7:e012475 (2017)
Verlagsversion DOI PMC
Open Access Gold
Creative Commons Lizenzvertrag
INTRODUCTION: Atopic dermatitis (AD) is the most common skin disorder in young children worldwide, with a high impact on morbidity and quality of life. To date, no prospective study has been published on the incidence and potential predictors of AD in South East Asian populations. The Indonesian Prospective Study of Atopic Dermatitis in Infants (ISADI) will address the genetic, metabolic and dietary characteristics of mothers and their offspring, as well as potential determinants of AD within the first year of infant life. METHODS AND ANALYSIS: This prospective study will be undertaken in about 400 infants to investigate the direct and indirect effects of filaggrin (FLG) gene mutations, the genetic variants of FADS1, FADS2 and FADS3 and the role of long-chain polyunsaturated fatty acids (LCPUFA) on the development of AD. We will use standardised protocols for subject recruitment, umbilical artery plasma analysis, buccal cell sampling for genotyping, fatty acid analysis, physical exams, 3-day food-intake recall of mothers and children, as well as comprehensive questionnaires on environmental, socioeconomic and AD-related factors, including family history. Monthly monitoring by telephone and physical exams every 3 months will be carried out to assess participants' anthropometry, medical history and incidence of AD diagnosis during the first year of life. Hypotheses-driven analyses of quality-controlled dietary, genetic and metabolic data will be performed with state-of-the-art statistical methods (eg, AD-event history, haplotype, dietary or metabolic factor analysis). Direct and indirect effects of genetics and LCPUFA in buccal cell and cord plasma glycerophospholipids as potential mediators of inflammation on AD development will be evaluated by path analysis. ETHICS AND DISSEMINATION: The Permanent Medical Research Ethics Committee in Medicine and Health/Faculty of Medicine Universitas Indonesia/Dr Cipto Mangunkusumo Hospital (No. 47/H2.F1/ETIK/2014) approved the study protocol (extended by the letter no. 148/UN2.F1/ETIK/2015). We aim to disseminate our findings via publication in an international journal with high impact factor.
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Publikationstyp Artikel: Journalartikel
Dokumenttyp Wissenschaftlicher Artikel
Schlagwörter Atopic Dermatitis ; Fads Gene Polymorphism ; Filaggrin Gene Mutation ; Long Chain Poly Unsaturated Fatty Acid Composition; Fatty-acid-composition; Ichthyosis Vulgaris Families; Filaggrin Gene; Predisposing Factor; Allergic Disorders; Chinese Patients; Mutations; Variants; Disease; Pregnancy
Sprache englisch
Veröffentlichungsjahr 2017
HGF-Berichtsjahr 2017
ISSN (print) / ISBN 2044-6055
e-ISSN 2044-6055
Zeitschrift BMJ Open
Quellenangaben Band: 7, Heft: 3, Seiten: , Artikelnummer: e012475 Supplement: ,
Verlag BMJ Publishing Group
Verlagsort London
Begutachtungsstatus Peer reviewed
Institut(e) Institute of Epidemiology (EPI)
POF Topic(s) 30202 - Environmental Health
Forschungsfeld(er) Genetics and Epidemiology
PSP-Element(e) G-504091-001
PubMed ID 28259851
Scopus ID 85014953261
Erfassungsdatum 2017-03-25