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Belugina I, Yagovdik N, Belugina O, Belugin S. The impact of meteorological factors on the incidence of infantile atopic dermatitis. Int J Dermatol 2024. [PMID: 39097929 DOI: 10.1111/ijd.17404] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/13/2024] [Revised: 06/07/2024] [Accepted: 07/12/2024] [Indexed: 08/06/2024]
Abstract
BACKGROUND The role of the climate regarding atopic dermatitis (AD) in infants is still unclear. This study aimed to determine the relationship between meteorological conditions and the incidence of early AD. METHODS The study was conducted using a retrospective design. We analyzed children aged 0-24 months with clinically diagnosed AD (n = 603), including infantile eczema (IE, n = 292), in relation to the mean monthly meteorological data in Minsk. The Mantel-Haenszel method was used to study the association between an AD outcome and meteorological variables, stratifying by potential confounders. Seasons of birth were analyzed in children diagnosed with AD before 6 months of age (n = 567) and at 12 months of age (n = 350) from 2005 to 2019. RESULTS The incidence rate of IE was negatively associated with air temperature (adjusted incidence rate ratio = 0.75; 95% confidence interval (CI) 0.59-0.94), precipitation (0.74; 95% CI 0.58-0.93), and positively associated with atmospheric pressure (1.31; 95% CI 1.04-1.66). The highest incidence rate of IE was during spring, and the lowest was during summer. Incidences of AD were less frequent among infants born in the spring (18.1% vs. 29.4%, P < 0.001) than among older children. The principal component analysis identified three meteorological combinations where the first one (warm, low humidity) was negatively associated with the incidence rate of AD among children aged 0-24 months (0.77; 95% CI 0.65-0.92), and the third one (rainy, low atmospheric pressure) with IE (0.70; 95% CI 0.54-0.90). CONCLUSION Continental seasonal cold-humid weather may influence early AD incidence. Moreover, short-term meteorological factors may play an important role in the onset of IE.
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Affiliation(s)
- Iryna Belugina
- Department of Venereology and Dermatology, Belarusian State Medical University, Minsk, Belarus
| | - Nikolay Yagovdik
- Department of Venereology and Dermatology, Belarusian State Medical University, Minsk, Belarus
| | - Olga Belugina
- Department of Psychiatry, Belarusian State Medical University, Minsk, Belarus
| | - Sergei Belugin
- Department of Environmental Medicine and Radiobiology, International Sakharov Environmental Institute of Belarusian State University, Minsk, Belarus
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Sun SY, Yin X, Ma JY, Wang XL, Xu XM, Wu JN, Zhang CW, Lu Y, Liu T, Zhang L, Kang PP, Wu B, Zhou GK. Histamine H4 receptor and TRPV1 mediate itch induced by cadaverine, a metabolite of the microbiome. Mol Pain 2024; 20:17448069241272149. [PMID: 39079948 DOI: 10.1177/17448069241272149] [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] [Indexed: 08/06/2024] Open
Abstract
Cadaverine is an endogenous metabolite produced by the gut microbiome with various activity in physiological and pathological conditions. However, whether cadaverine regulates pain or itch remains unclear. In this study, we first found that cadaverine may bind to histamine 4 receptor (H4R) with higher docking energy score using molecular docking simulations, suggesting cadaverine may act as an endogenous ligand for H4R. We subsequently found intradermal injection of cadaverine into the nape or cheek of mice induces a dose-dependent scratching response in mice, which was suppressed by a selective H4R antagonist JNJ-7777120, transient receptor potential vanilloid 1 (TRPV1) antagonist capsazepine and PLC inhibitor U73122, but not H1R antagonist or TRPA1 antagonist or TRPV4 antagonist. Consistently, cadaverine-induced itch was abolished in Trpv1-/- but not Trpa1-/- mice. Pharmacological analysis indicated that mast cells and opioid receptors were also involved in cadaverine-induced itch in mice. scRNA-Seq data analysis showed that H4R and TRPV1 are mainly co-expressed on NP2, NP3 and PEP1 DRG neurons. Calcium imaging analysis showed that cadaverine perfusion enhanced calcium influx in the dissociated dorsal root ganglion (DRG) neurons, which was suppressed by JNJ-7777120 and capsazepine, as well as in the DRG neurons from Trpv1-/- mice. Patch-clamp recordings found that cadaverine perfusion significantly increased the excitability of small diameter DRG neurons, and JNJ-7777120 abolished this effect, indicating involvement of H4R. Together, these results provide evidences that cadaverine is a novel endogenous pruritogens, which activates H4R/TRPV1 signaling pathways in the primary sensory neurons.
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Affiliation(s)
- Shi-Yu Sun
- Institute of Pain Medicine and Special Environmental Medicine, Nantong University, Nantong, China
| | - Xi Yin
- Institute of Pain Medicine and Special Environmental Medicine, Nantong University, Nantong, China
| | - Jun-Yi Ma
- Institute of Pain Medicine and Special Environmental Medicine, Nantong University, Nantong, China
| | - Xue-Long Wang
- Department of Thoracic Surgery, Capital Medical University Electric Power Teaching Hospital, Beijing, China
| | - Xue-Mei Xu
- Institute of Pain Medicine and Special Environmental Medicine, Nantong University, Nantong, China
| | - Jing-Ni Wu
- Institute of Pain Medicine and Special Environmental Medicine, Nantong University, Nantong, China
| | - Cheng-Wei Zhang
- Department of Thoracic Surgery, Capital Medical University Electric Power Teaching Hospital, Beijing, China
| | - Ying Lu
- Department of Nutrition and Food Hygiene, School of Public Health, Nantong University, Nantong, China
| | - Tong Liu
- Institute of Pain Medicine and Special Environmental Medicine, Nantong University, Nantong, China
| | - Li Zhang
- Department of Anesthesiology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Pei-Pei Kang
- Department of Anesthesiology, Affiliated Tumor Hospital of Nantong University, Nantong, China
| | - Bin Wu
- Institute of Pain Medicine and Special Environmental Medicine, Nantong University, Nantong, China
| | - Guo-Kun Zhou
- Institute of Pain Medicine and Special Environmental Medicine, Nantong University, Nantong, China
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Tian J, Zhang D, Yang Y, Huang Y, Wang L, Yao X, Lu Q. Global epidemiology of atopic dermatitis: a comprehensive systematic analysis and modelling study. Br J Dermatol 2023; 190:55-61. [PMID: 37705227 DOI: 10.1093/bjd/ljad339] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2023] [Revised: 07/16/2023] [Accepted: 09/06/2023] [Indexed: 09/15/2023]
Abstract
BACKGROUND Atopic dermatitis (AD) is the leading cause of the global burden from skin disease; no study has provided global and country-specific epidemiological estimates of AD. OBJECTIVES To quantify global, regional and country-specific estimates of the epidemiology of AD. METHODS A comprehensive search for epidemiological studies in AD was conducted in four electronic databases (PubMed, Embase, Web of Science and China National Knowledge Infrastructure). A Bayesian hierarchical linear mixed model was constructed to calculate epidemiological estimates of AD considering the heterogeneity of regions, countries, type of diagnoses and age strata. RESULTS In total, 344 studies met the inclusion criteria. Incidence varied substantially with the location and age of the surveyed participants. The global prevalence of AD and the population affected by AD were estimated to be 2.6% [95% uncertainty interval (UI) 1.9-3.5] and 204.05 million people, respectively. Around 101.27 million adults and 102.78 million children worldwide have AD, corresponding to prevalence rates of 2.0% (95% UI 1.4-2.6) and 4.0% (95% UI 2.8-5.3), respectively. Females were more likely to suffer from AD than males: the global prevalence of AD in females was 2.8% (95% UI 2.0-3.7%) and affected 108.29 million people, while in males the corresponding estimates were 2.4% (95% UI 1.7-3.3%) and 95.76 million people. CONCLUSIONS Epidemiological AD data are lacking in 41.5% of countries worldwide. The epidemiology of AD varies substantially with age and sex and is distributed unequally across geographical regions.
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Affiliation(s)
- Jingru Tian
- Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, China
- Key Laboratory of Basic and Translational Research on Immune-Mediated Skin Diseases, Chinese Academy of Medical Sciences, Nanjing, China
- Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Nanjing, China
| | - Dingyao Zhang
- Graduate Program in Biological and Biomedical Sciences
- Program in Computational Biology and Bioinformatics
| | - Yi Yang
- Department of Nuclear Medicine, Xiangya Hospital, Central South University, Changsha, China
| | - Yaqing Huang
- Department of Pathology, Yale University, New Haven, CT, USA
| | - Lu Wang
- Department of Dermatology, Hunan Key Laboratory of Medical Epigenomics, the Second Xiangya Hospital, Central South University, Changsha, China
| | - Xu Yao
- Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, China
| | - Qianjin Lu
- Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, China
- Key Laboratory of Basic and Translational Research on Immune-Mediated Skin Diseases, Chinese Academy of Medical Sciences, Nanjing, China
- Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Nanjing, China
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Zhang Y, Gu H, Ye Y, Li Y, Gao X, Ken K, Huang X, Gao W, Chen H, Huang J, Wang L, Yan W. Trajectory of stratum corneum lipid subclasses in the first year of life and associations with atopic dermatitis: A prospective cohort study. Pediatr Allergy Immunol 2023; 34:e14045. [PMID: 38010004 DOI: 10.1111/pai.14045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Revised: 09/20/2023] [Accepted: 10/20/2023] [Indexed: 11/29/2023]
Abstract
BACKGROUND Trajectories of stratum corneum (SC) lipid subclasses and their associations with infant atopic dermatitis (AD) are unclear. This study aimed to quantify the trajectories of 15 SC subclasses and carbon chain lengths and their associations with AD within 12 months. METHODS In total, 213 newborns were enrolled at birth with nonlesional skin samples collected from the inner forearm at birth, 42 days, 3, 6, and 12 months, respectively. Lesional skin samples were collected from 120 AD patients at clinic with the disease onset within the first year of life. Mass spectrometry was applied to assess relative contents of 12 ceramide (CER), three free fatty acid (FFA) subclasses, and average carbon chain length (CCL). AD incident within 1 year old was diagnosed by dermatologists according to UK criteria. RESULTS Sixty-four (30.0%) cases of ADs occurred in the cohort. All SC lipid subclasses and CCLs, but EOP varied significantly during the first year. AD infants showed lower NP but higher NS, NH, AP, hydroxy FFA, and CCL of FFAs compared with nonaffected infants. After normalization by age, the differences remained and were more pronounced in lesional skin of clinical AD infants compared with non-ADs. NS, NH, and CCL of FFAs in lesional skin of AD infants showed positive and significant correlations with the levels of transepidermal water loss at 3 month; some evidence supports a negative correlation for NP. CONCLUSIONS We provide an overview of developmental trajectories of 15 CER and FFA subclasses across the first year of healthy infants and a link between the imbalance of some subclasses with the development of AD.
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Affiliation(s)
- Yi Zhang
- Department of Clinical Epidemiology & Clinical Trial Unit, Children's Hospital of Fudan University & National Children Medical Center, Shanghai, China
| | - Hongjian Gu
- Department of Research & Development, Pigeon Maternal and Infant Skin Care Research Institute, Shanghai, China
| | - Ying Ye
- Department of Dermatology, Children's Hospital of Fudan University & National Children Medical Center, Shanghai, China
| | - Yun Li
- Shanghai Minhang Maternal and Children Health Care Hospital, Shanghai, China
| | - Xiaohua Gao
- Shanghai Minhang Maternal and Children Health Care Hospital, Shanghai, China
| | - Kaku Ken
- Department of Research & Development, Pigeon Maternal and Infant Skin Care Research Institute, Shanghai, China
| | - Xiangyuan Huang
- Department of Clinical Epidemiology & Clinical Trial Unit, Children's Hospital of Fudan University & National Children Medical Center, Shanghai, China
| | - Wei Gao
- Department of Dermatology, Children's Hospital of Fudan University & National Children Medical Center, Shanghai, China
| | - Hongyan Chen
- Department of Clinical Epidemiology & Clinical Trial Unit, Children's Hospital of Fudan University & National Children Medical Center, Shanghai, China
| | - Jun Huang
- Shanghai Minhang Maternal and Children Health Care Hospital, Shanghai, China
| | - Liuhui Wang
- Department of Dermatology, Children's Hospital of Fudan University & National Children Medical Center, Shanghai, China
| | - Weili Yan
- Department of Clinical Epidemiology & Clinical Trial Unit, Children's Hospital of Fudan University & National Children Medical Center, Shanghai, China
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Li X, Xiao Z, Li C, Chen Q, Jia L. Maternal dietary patterns during pregnancy and the risk of infantile eczema during the first year of life: a cohort study in northeast China. BMC Public Health 2023; 23:1641. [PMID: 37641073 PMCID: PMC10463679 DOI: 10.1186/s12889-023-16577-9] [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: 02/24/2023] [Accepted: 08/21/2023] [Indexed: 08/31/2023] Open
Abstract
BACKGROUND There are few studies on the relationship between diet during pregnancy and infantile eczema and the conclusions are inconsistent. The aim of the present study was to explore the impact of dietary patterns during pregnancy on infantile eczema. METHODS A total of 495 mother-child pairs from a prospective cohort in Shenyang, China was recruited. Information on maternal dietary intake during pregnancy was assessed with a validated self-administered food frequency questionnaire. The data of infantile eczema was assessed using a structured questionnaire. Factor analysis to derive dietary patterns. The relationship between the dietary pattern and infantile eczema was examined by the logistic regression analysis. RESULTS The cumulative incidence of eczema in 6 months and 12 months in northeast China was 45.7% and 57.8%, respectively. Three dietary patterns were identified. There was a tendency for an expose-response relationship between the maternal high-protein dietary pattern during pregnancy and the risk of infantile eczema within 12 months (P for trend = 0.023): the adjusted odds ratio (95% confidence interval) in the Q1, Q2, Q3, Q4 were 1.00 (reference), 1.63 (0.96-2.76), 1.81 (1.06-3.06), and 1.87 (1.09-3.20), respectively. No association between Western and plant-based patterns during pregnancy and infantile eczema within 12 months was found. Infantile eczema within 6 months was not associated with any of the three dietary patterns. CONCLUSION The maternal high-protein pattern during pregnancy may be a risk factor for infantile eczema during the first year of life.
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Affiliation(s)
- Xuening Li
- Department of Child and Adolescent Health, School of Public Health, China Medical University, Shenyang 110122, Liaoning, China
- Department of Pediatrics, The Fourth Affiliated Hospital of China Medical University, Shenyang 110032, Liaoning, China
| | - Zhe Xiao
- Department of Child and Adolescent Health, School of Public Health, China Medical University, Shenyang 110122, Liaoning, China
| | - Chenyang Li
- Department of Child and Adolescent Health, School of Public Health, China Medical University, Shenyang 110122, Liaoning, China
| | - Qi Chen
- Department of Child and Adolescent Health, School of Public Health, China Medical University, Shenyang 110122, Liaoning, China
| | - Lihong Jia
- Department of Child and Adolescent Health, School of Public Health, China Medical University, Shenyang 110122, Liaoning, China.
- Liaoning Key Laboratory of Obesity and Glucose/Lipid Associated Metabolic Diseases, Shenyang 110122, Liaoning, China.
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Preis S, Schmidt L, Tizek L, Schielein M, Lang V, Bleuel R, Duswald A, Sitaru S, Blasini A, Gasteiger C, Merdha L, Kurgyis Z, Kuschel B, Hauenstein E, Sander M, Niedermeier S, Argiriu D, Engel S, Skabytska Y, Silva RL, Hils M, Evers B, Kaesler S, Hufnagel H, Köberle M, Amar Y, Zink A, Biedermann T. Munich atopy prediction study (MAPS): protocol for a prospective birth cohort addressing clinical and molecular risk factors for atopic dermatitis in early childhood. BMJ Open 2022; 12:e059256. [PMID: 36691202 PMCID: PMC9462110 DOI: 10.1136/bmjopen-2021-059256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Accepted: 08/15/2022] [Indexed: 01/26/2023] Open
Abstract
INTRODUCTION The pathogenesis of atopic diseases is highly complex, and the exact mechanisms leading to atopic dermatitis (AD) onset in infants remain mostly enigmatic. In addition to an interdependent network of components of skin development in young age and skin barrier dysfunction underlying AD development that is only partially understood, a complex interplay between environmental factors and lifestyle habits with skin barrier and immune dysregulation is suspected to contribute to AD onset. This study aims to comprehensively evaluate individual microbiome and immune responses in the context of environmental determinants related the risk of developing AD in the first 4 years of a child's life. METHODS AND ANALYSES The 'Munich Atopic Prediction Study' is a comprehensive clinical and biological investigation of a prospective birth cohort from Munich, Germany. Information on pregnancy, child development, environmental factors, parental exposures to potential allergens and acute or chronic diseases of children and parents are collected by questionnaires together with a meticulous clinical examination by trained dermatologists focusing on allergies, skin health, and in particular signs of AD at 2 months after birth and then every 6 months. In addition, skin barrier functions are assessed through cutometry, corneometry and transepidermal water loss at every visit. These measurements are completed with allergy diagnostics and extensive microbiome analyses from stool and skin swabs as well as transcriptome analyses using skin microbiopsies.The aim is to assess the relevance of different known and yet unknown risk factors of AD onset and exacerbations in infants and to identify possible accessible and robust biomarkers. ETHICS AND DISSEMINATION The study is approved by the Ethical Committee of the Medical Faculty of the Technical University of Munich (reference 334/16S). All relevant study results will be presented at national and international conferences and in peer-reviewed journals.
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Affiliation(s)
- Sarah Preis
- Department of Dermatology and Allergy, School of Medicine, Technical University of Munich, Munich, Germany
| | - Lea Schmidt
- Department of Dermatology and Allergy, School of Medicine, Technical University of Munich, Munich, Germany
| | - Linda Tizek
- Department of Dermatology and Allergy, School of Medicine, Technical University of Munich, Munich, Germany
| | - Maximilian Schielein
- Department of Dermatology and Allergy, School of Medicine, Technical University of Munich, Munich, Germany
| | - Viktoria Lang
- Department of Dermatology and Allergy, School of Medicine, Technical University of Munich, Munich, Germany
| | - Rachela Bleuel
- Department of Dermatology and Allergy, School of Medicine, Technical University of Munich, Munich, Germany
| | - Anna Duswald
- Department of Dermatology and Allergy, School of Medicine, Technical University of Munich, Munich, Germany
| | - Sebastian Sitaru
- Department of Dermatology and Allergy, School of Medicine, Technical University of Munich, Munich, Germany
| | - Annette Blasini
- Department of Dermatology and Allergy, School of Medicine, Technical University of Munich, Munich, Germany
| | - Christine Gasteiger
- Department of Dermatology and Allergy, School of Medicine, Technical University of Munich, Munich, Germany
| | - Lennard Merdha
- Department of Dermatology and Allergy, School of Medicine, Technical University of Munich, Munich, Germany
| | - Zsuzsanna Kurgyis
- Department of Dermatology and Allergy, School of Medicine, Technical University of Munich, Munich, Germany
| | - Bettina Kuschel
- Department of Gynecology, School of Medicine, Technical University of Munich, Munich, Germany
| | | | | | - Sebastian Niedermeier
- Department of Dermatology and Allergy, School of Medicine, Technical University of Munich, Munich, Germany
| | - Desiree Argiriu
- Department of Dermatology and Allergy, School of Medicine, Technical University of Munich, Munich, Germany
| | - Sabrina Engel
- Department of Dermatology and Allergy, School of Medicine, Technical University of Munich, Munich, Germany
| | | | - Rafaela L Silva
- Department of Dermatology and Allergy, School of Medicine, Technical University of Munich, Munich, Germany
| | - Miriam Hils
- Department of Dermatology and Allergy, School of Medicine, Technical University of Munich, Munich, Germany
| | - Beatrix Evers
- Department of Dermatology and Allergy, School of Medicine, Technical University of Munich, Munich, Germany
| | - Susanne Kaesler
- Department of Dermatology and Allergy, School of Medicine, Technical University of Munich, Munich, Germany
| | - Hanna Hufnagel
- Department of Dermatology and Allergy, School of Medicine, Technical University of Munich, Munich, Germany
| | - Martin Köberle
- Department of Dermatology and Allergy, School of Medicine, Technical University of Munich, Munich, Germany
| | - Yacine Amar
- Department of Dermatology and Allergy, School of Medicine, Technical University of Munich, Munich, Germany
| | - Alexander Zink
- Department of Dermatology and Allergy, School of Medicine, Technical University of Munich, Munich, Germany
- Division of Dermatology and Venereology, Department of Medicine Solna, Karolinska Institutet, Stockholm, Schweden
| | - Tilo Biedermann
- Department of Dermatology and Allergy, School of Medicine, Technical University of Munich, Munich, Germany
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Constantinou S, Evans J, Goodwin RG. Fifteen-minute consultation: How to manage eczema in children. Arch Dis Child Educ Pract Ed 2022; 107:162-168. [PMID: 33658292 DOI: 10.1136/archdischild-2020-320560] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Revised: 02/08/2021] [Accepted: 02/11/2021] [Indexed: 11/03/2022]
Abstract
Atopic eczema is common and has a major impact on quality of life. Paediatricians and general practitioners play a key role in the non-specialist treatment of atopic eczema. However, the clinical nature of the diagnosis, multitude of topical therapies and sometimes complicated treatment strategies can leave both clinicians and families feeling bewildered. This article aims to provide a concise, patient-focused summary of the assessment and management of childhood atopic eczema.
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Affiliation(s)
| | - Jordan Evans
- Paediatric Emergency Department, University Hospital of Wales, Cardiff, UK.,Emergency Department, The Children's Hospital at Westmead, The Sydney Children's Hospitals Network, Westmead, New South Wales, Australia
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Nicholas MN, Keown-Stoneman CDG, Maguire JL, Drucker AM. Association Between Atopic Dermatitis and Height, Body Mass Index, and Weight in Children. JAMA Dermatol 2021; 158:26-32. [PMID: 34787649 DOI: 10.1001/jamadermatol.2021.4529] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
Importance Atopic dermatitis may be associated with short stature and obesity in children, but most previous studies have been either small or cross-sectional. Objective To evaluate the association between atopic dermatitis and height, body mass index (BMI; calculated as weight in kilograms divided by height in meters squared), and weight throughout childhood. Design, Setting, and Participants TARGet Kids! (The Applied Research Group for Kids) is an ongoing prospective longitudinal cohort study that collects data at routine physician visits throughout childhood. In this cohort, children aged 5 or younger were followed up into adolescence at regular physician visits at general pediatric and family practices in Toronto, Canada, from June 2008 to February 2021. Exposure Parental report of atopic dermatitis. Main Outcomes and Measures Primary outcomes were length-for-age and BMI-for-age z scores. The secondary outcome was weight-for-age z score. Linear mixed effects models were used to estimate associations between atopic dermatitis and each outcome. In secondary analyses, interaction terms were included between atopic dermatitis and age. Results A total of 10 611 children were included in the analysis, with mean (SD) baseline age of 23 (20) months; 5070 (47.8%) participants were female. Participants were followed for a median (range) of 28.5 (0.0-158.0) months. A total of 1834 (17.3%) children had atopic dermatitis during follow-up. Atopic dermatitis was associated with lower length-for-age z score (-0.13; 95% CI, -0.17 to -0.09; P < .001), higher BMI z score (0.05; 95% CI, 0.01 to 0.09; P = .008), and lower weight-for-age z score (-0.07; 95% CI, -0.10 to -0.04; P < .001) compared with children without atopic dermatitis. The associations between atopic dermatitis and height and BMI changed with age, diminishing by age 14 years and 5.5 years, respectively. Based on World Health Organization growth tables, children with atopic dermatitis were on average 0.5 cm shorter with 0.2 more BMI units at age 2 years and 0.6 cm shorter with no difference in BMI at age 5 years than children without atopic dermatitis after adjusting for covariates. There was no evidence of interaction between atopic dermatitis and age with respect to weight. Conclusions and Relevance In this cohort study, atopic dermatitis was associated with shorter stature, higher BMI, and lower weight in early childhood, but these associations were small and, for height and BMI, attenuated with age and resolved by adolescence.
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Affiliation(s)
- Mathew N Nicholas
- Division of Dermatology, Department of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Charles D G Keown-Stoneman
- The Applied Health Research Centre of the Li Ka Shing Knowledge Institute of St Michael's Hospital, Toronto, Ontario, Canada.,Division of Biostatistics, Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada
| | - Jonathon L Maguire
- The Applied Health Research Centre of the Li Ka Shing Knowledge Institute of St Michael's Hospital, Toronto, Ontario, Canada.,Institute of Health Policy, Management and Evaluation, Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada.,Department of Pediatrics, University of Toronto, Toronto, Ontario, Canada.,Department of Pediatrics, St Michael's Hospital, Toronto, Ontario, Canada
| | - Aaron M Drucker
- Division of Dermatology, Department of Medicine, University of Toronto, Toronto, Ontario, Canada.,Institute of Health Policy, Management and Evaluation, Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada.,Division of Dermatology, Department of Medicine and Women's College Research Institute, Women's College Hospital, Toronto, Ontario, Canada
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Li XN, Wu D, Liu Y, Zhang SS, Tian FL, Sun Q, Wei W, Cao X, Jia LH. Prenatal exposure to bisphenols, immune responses in cord blood and infantile eczema: A nested prospective cohort study in China. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 228:112987. [PMID: 34781129 DOI: 10.1016/j.ecoenv.2021.112987] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Revised: 11/05/2021] [Accepted: 11/09/2021] [Indexed: 06/13/2023]
Abstract
Increasing evidence shows that human exposure to bisphenols can increase the risk of allergic disease, such as child asthma. However, the mechanism by which exposure to bisphenols causes allergic disease is unclear. In addition, the effects of exposure to bisphenols during pregnancy on infantile eczema have been poorly studied. The aim of our study was to investigate the effect of bisphenols (BPA, BPF and BPS) exposure during pregnancy on immune cells in cord blood, and on the occurrence of infantile eczema. 111 mother-child pairs with urine samples from pregnant women and cord blood were recruited from a birth cohort established in February 2019 in Shenyang, China. The levels of urinary bisphenols and Th1-, Th2-, Treg- and Th17-related genes, and cytokines in cord blood, as well as the incidence of infantile eczema at 6 and 12 months follow up were determined. Our results show that BPA, BPF and BPS were detected in 100%, 63.1% and 46.8% of the urine samples, respectively. The median concentration of urine specific gravity adjusted BPA (SG-BPA) was 7.46 ng/mL. High SG-BPA levels during pregnancy was independently associated with increased risk of infantile eczema (adjusted OR = 2.731, 95%CI: 1.064-7.012, P = 0.037). Higher levels of FOXP3 gene in cord blood had a significantly lower risk of developing eczema in infants (adjusted OR=0.430, 95%CI: 0.190-0.972, P = 0.042). However, BPS and BPF levels were not associated with infantile eczema. FOXP3 gene levels in cord blood mediated the relationship between SG-BPA levels during pregnancy and infantile eczema (indirect effect: β = 0.350 [CI:0.011,1.077]). Our findings indicate that high levels of BPA exposure during pregnancy increase the risk of infantile eczema, which may be associated with down-regulation of FOXP3 gene expression in cord blood.
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Affiliation(s)
- Xue-Ning Li
- Department of Child and Adolescent Health, School of Public Health, China Medical University, Shenyang 110122, China; Department of Pediatrics, The Fourth Affiliated Hospital of China Medical University, Shenyang 110032, China
| | - Dan Wu
- Department of Child and Adolescent Health, School of Public Health, China Medical University, Shenyang 110122, China
| | - Ying Liu
- Department of Pediatrics, The Fourth Affiliated Hospital of China Medical University, Shenyang 110032, China
| | - Shuang-Shuang Zhang
- Department of Pediatrics, The Fourth Affiliated Hospital of China Medical University, Shenyang 110032, China
| | - Fu-Lin Tian
- Center for Public Health Safety Risk Assessment, School of Public Health, China Medical University, Shenyang 110122, China
| | - Qi Sun
- Department of Child and Adolescent Health, School of Public Health, China Medical University, Shenyang 110122, China
| | - Wei Wei
- Department of Child and Adolescent Health, School of Public Health, China Medical University, Shenyang 110122, China
| | - Xia Cao
- Department of obstetrics, The Fourth Affiliated Hospital of China Medical University, Shenyang 110032, China
| | - Li-Hong Jia
- Department of Child and Adolescent Health, School of Public Health, China Medical University, Shenyang 110122, China; Liaoning Key Laboratory of Obesity and Glucose/Lipid Associated Metabolic Diseases, Shenyang 110122, China.
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10
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Ye Y, Dou LM, Zhang Y, Dou YL, Zhao PP, Jiang Y, Gao W, Ji M, He LF, Niu DY, Zhang L, Gao XH, Li Y, Xiao LP, Huang J, Zhang XH, Wang LH, Yan WL. Maternal periconceptional folate status and infant atopic dermatitis: A prospective cohort study. Pediatr Allergy Immunol 2021; 32:137-145. [PMID: 32663346 DOI: 10.1111/pai.13321] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Revised: 06/28/2020] [Accepted: 07/06/2020] [Indexed: 12/13/2022]
Abstract
BACKGROUND Maternal folate status is linked with the risk of allergic disorders including atopic dermatitis (AD) in children, but findings remain inconclusive. We aim to assess the relationship between maternal folate status in early gestation and early-onset infant AD, based on a prospective mother-child cohort study. METHODS Pregnant women were recruited at 12-14 weeks of gestation. Red blood cell folate (RBC folate) and serum folate concentrations were examined at enrollment. Periconceptional folic acid supplementation was investigated through a self-administered questionnaire. The primary outcome was AD incidence before 6 months of age, diagnosed according to Williams' criteria. Multivariate logistic regression was used to evaluate associations of maternal folate status with infant AD by adjusting parental and child covariates. RESULTS In total, 107 (23.4%) of 458 infants developed AD before 6 months, with more male infants affected (P = .002). Higher maternal RBC folate levels (per 100 ng/mL) were associated with an increased risk of AD (adjusted odds ratio [aOR] 1.16, 95% confidence interval [CI] 1.04-1.31). An RBC folate level ≥620 ng/mL was associated with increased infant AD by 91% (aOR 1.91, 95% CI 1.09-3.36). However, associations were not observed for maternal serum folate at early gestation or periconceptional folic acid supplement intakes. CONCLUSIONS We provide the first evidence that higher maternal RBC folate concentrations during early gestation are associated with increased early-onset infant AD. Our findings support the importance of maintaining appropriate folate levels during the periconceptional period to reduce the risk of AD in infants.
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Affiliation(s)
- Ying Ye
- Department of Clinical Epidemiology, Children's Hospital of Fudan University, Shanghai, China.,Department of Dermatology, Children's Hospital of Fudan University, Shanghai, China
| | - Li-Min Dou
- Department of Dermatology, Children's Hospital of Fudan University, Shanghai, China
| | - Yi Zhang
- Department of Clinical Epidemiology, Children's Hospital of Fudan University, Shanghai, China
| | - Ya-Lan Dou
- Department of Clinical Epidemiology, Children's Hospital of Fudan University, Shanghai, China
| | - Piao-Ping Zhao
- Department of Dermatology, Children's Hospital of Fudan University, Shanghai, China
| | - Yuan Jiang
- Department of Clinical Epidemiology, Children's Hospital of Fudan University, Shanghai, China
| | - Wei Gao
- Department of Dermatology, Children's Hospital of Fudan University, Shanghai, China
| | - Mi Ji
- Department of Clinical Epidemiology, Children's Hospital of Fudan University, Shanghai, China
| | - Lin-Feng He
- Department of Dermatology, Children's Hospital of Fudan University, Shanghai, China
| | - Da-Yan Niu
- Department of Clinical Epidemiology, Children's Hospital of Fudan University, Shanghai, China
| | - Lei Zhang
- Shanghai Minhang Maternal and Children Health Care Hospital, Shanghai, China
| | - Xiao-Hua Gao
- Shanghai Minhang Maternal and Children Health Care Hospital, Shanghai, China
| | - Yun Li
- Shanghai Minhang Maternal and Children Health Care Hospital, Shanghai, China
| | - Li-Ping Xiao
- Shanghai Minhang Maternal and Children Health Care Hospital, Shanghai, China
| | - Jun Huang
- Shanghai Minhang Maternal and Children Health Care Hospital, Shanghai, China
| | - Xiao-Hua Zhang
- Shanghai Minhang Maternal and Children Health Care Hospital, Shanghai, China
| | - Liu-Hui Wang
- Department of Dermatology, Children's Hospital of Fudan University, Shanghai, China
| | - Wei-Li Yan
- Department of Clinical Epidemiology, Children's Hospital of Fudan University, Shanghai, China
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11
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Skjerven HO, Rehbinder EM, Vettukattil R, LeBlanc M, Granum B, Haugen G, Hedlin G, Landrø L, Marsland BJ, Rudi K, Sjøborg KD, Söderhäll C, Staff AC, Carlsen KH, Asarnoj A, Bains KES, Carlsen OCL, Endre KMA, Granlund PA, Hermansen JU, Gudmundsdóttir HK, Hilde K, Håland G, Kreyberg I, Olsen IC, Mägi CAO, Nordhagen LS, Saunders CM, Skrindo I, Tedner SG, Værnesbranden MR, Wiik J, Jonassen CM, Nordlund B, Carlsen KCL. Skin emollient and early complementary feeding to prevent infant atopic dermatitis (PreventADALL): a factorial, multicentre, cluster-randomised trial. Lancet 2020; 395:951-961. [PMID: 32087121 DOI: 10.1016/s0140-6736(19)32983-6] [Citation(s) in RCA: 140] [Impact Index Per Article: 35.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/05/2019] [Revised: 11/11/2019] [Accepted: 11/21/2019] [Indexed: 02/07/2023]
Abstract
BACKGROUND Skin emollients applied during early infancy could prevent atopic dermatitis, and early complementary food introduction might reduce food allergy in high-risk infants. The study aimed to determine if either regular skin emollients applied from 2 weeks of age, or early complementary feeding introduced between 12 and 16 weeks of age, reduced development of atopic dermatitis by age 12 months in the general infant population. METHODS This population-based 2×2 factorial, randomised clinical trial was done at Oslo University Hospital and Østfold Hospital Trust, Oslo, Norway; and Karolinska University Hospital, Stockholm, Sweden. Infants of women recruited antenatally at the routine ultrasound pregnancy screening at 18 weeks were cluster-randomised at birth from 2015 to 2017 to the following groups: (1) controls with no specific advice on skin care while advised to follow national guidelines on infant nutrition (no intervention group); (2) skin emollients (bath additives and facial cream; skin intervention group); (3) early complementary feeding of peanut, cow's milk, wheat, and egg (food intervention group); or (4) combined skin and food interventions (combined intervention group). Participants were randomly assigned (1:1:1:1) using computer- generated cluster randomisation based on 92 geographical living area blocks as well as eight 3-month time blocks. Carers were instructed to apply the interventions on at least 4 days per week. Atopic dermatitis by age 12 months was the primary outcome, based on clinical investigations at 3, 6 and 12 months by investigators masked to group allocation. Atopic dermatitis was assessed after completing the 12-month investigations and diagnosed if either of the UK Working Party and Hanifin and Rajka (12 months only) diagnostic criteria were fulfilled. The primary efficacy analyses was done by intention-to-treat analysis on all randomly assigned participants. Food allergy results will be reported once all investigations at age 3 years are completed in 2020. This was a study performed within ORAACLE (the Oslo Research Group of Asthma and Allergy in Childhood; the Lung and Environment). The study is registered at clinicaltrials.gov, NCT02449850. FINDINGS 2697 women were recruited between Dec 9, 2014, and Oct 31, 2016, from whom 2397 newborn infants were enrolled from April 14, 2015, to April 11, 2017. Atopic dermatitis was observed in 48 (8%) of 596 infants in the no intervention group, 64 (11%) of 575 in the skin intervention group, 58 (9%) of 642 in the food intervention group, and 31 (5%) of 583 in the combined intervention group. Neither skin emollients nor early complementary feeding reduced development of atopic dermatitis, with a risk difference of 3·1% (95% CI -0·3 to 6·5) for skin intervention and 1·0% (-2·1 to 4·1) for food intervention, in favour of control. No safety concerns with the interventions were identified. Reported skin symptoms and signs (including itching, oedema, exanthema, dry skin, and urticaria) were no more frequent in the skin, food, and combined intervention groups than in the no intervention group. INTERPRETATION Neither early skin emollients nor early complementary feeding reduced development of atopic dermatitis by age 12 months. Our study does not support the use of these interventions to prevent atopic dermatitis by 12 months of age in infants. FUNDING The study was funded by several public and private funding bodies: The Regional Health Board South East, The Norwegian Research Council, Health and Rehabilitation Norway, The Foundation for Healthcare and Allergy Research in Sweden-Vårdalstiftelsen, Swedish Asthma and Allergy Association's Research Foundation, Swedish Research Council-the Initiative for Clinical Therapy Research, The Swedish Heart-Lung Foundation, SFO-V at the Karolinska Institute, Freemason Child House Foundation in Stockholm, Swedish Research Council for Health, Working Life and Welfare-FORTE, Oslo University Hospital, the University of Oslo, and Østfold Hospital Trust.
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Affiliation(s)
- Håvard Ove Skjerven
- Division of Paediatric and Adolescent Medicine, Oslo University Hospital, Oslo, Norway; Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway.
| | - Eva Maria Rehbinder
- Department of Dermatology, Oslo University Hospital, Oslo, Norway; Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Riyas Vettukattil
- Division of Paediatric and Adolescent Medicine, Oslo University Hospital, Oslo, Norway; Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Marissa LeBlanc
- Oslo Centre for Biostatistics and Epidemiology, Oslo University Hospital, Oslo, Norway
| | - Berit Granum
- Department of Environmental Health, Norwegian Institute of Public Health, Oslo, Norway
| | - Guttorm Haugen
- Division of Obstetrics and Gynaecology, Oslo University Hospital, Oslo, Norway; Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Gunilla Hedlin
- Department of Women's and Children's Health, Karolinska Institute, Stockholm, Sweden; Astrid Lindgren Children's Hospital, Karolinska University Hospital, Stockholm, Sweden
| | - Linn Landrø
- Department of Dermatology, Oslo University Hospital, Oslo, Norway
| | - Benjamin J Marsland
- Department of Immunology and Pathology, Monash University, Melbourne, VIC, Australia; Department of Biology and Medicine, Centre Hospitalier Universitaire Vaudois-Universitu of Lausanne, Lausanne, Switzerland
| | - Knut Rudi
- Department of Chemistry, Biotechnology and Food Science, Norwegian University of Life Sciences, Ås, Norway
| | | | - Cilla Söderhäll
- Department of Women's and Children's Health, Karolinska Institute, Stockholm, Sweden; Astrid Lindgren Children's Hospital, Karolinska University Hospital, Stockholm, Sweden
| | - Anne Cathrine Staff
- Division of Obstetrics and Gynaecology, Oslo University Hospital, Oslo, Norway; Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Kai-Håkon Carlsen
- Division of Paediatric and Adolescent Medicine, Oslo University Hospital, Oslo, Norway; Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Anna Asarnoj
- Department of Women's and Children's Health, Karolinska Institute, Stockholm, Sweden; Astrid Lindgren Children's Hospital, Karolinska University Hospital, Stockholm, Sweden
| | - Karen Eline Stensby Bains
- Division of Paediatric and Adolescent Medicine, Oslo University Hospital, Oslo, Norway; Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Oda C Lødrup Carlsen
- Division of Paediatric and Adolescent Medicine, Oslo University Hospital, Oslo, Norway
| | - Kim M Advocaat Endre
- Division of Paediatric and Adolescent Medicine, Oslo University Hospital, Oslo, Norway; Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Peder Annæus Granlund
- Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway
| | | | - Hrefna Katrín Gudmundsdóttir
- Division of Paediatric and Adolescent Medicine, Oslo University Hospital, Oslo, Norway; Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Katarina Hilde
- Division of Obstetrics and Gynaecology, Oslo University Hospital, Oslo, Norway; Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Geir Håland
- Division of Paediatric and Adolescent Medicine, Oslo University Hospital, Oslo, Norway; Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Ina Kreyberg
- Division of Paediatric and Adolescent Medicine, Oslo University Hospital, Oslo, Norway; Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway
| | | | - Caroline-Aleksi Olsson Mägi
- Department of Women's and Children's Health, Karolinska Institute, Stockholm, Sweden; Astrid Lindgren Children's Hospital, Karolinska University Hospital, Stockholm, Sweden
| | - Live Solveig Nordhagen
- Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway; VID Specialized University, Oslo, Norway
| | - Carina Madelen Saunders
- Division of Paediatric and Adolescent Medicine, Oslo University Hospital, Oslo, Norway; Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Ingebjørg Skrindo
- Department of Otorhinolaryngology, Akershus University Hospital, Lørenskog, Norway
| | - Sandra G Tedner
- Department of Women's and Children's Health, Karolinska Institute, Stockholm, Sweden; Astrid Lindgren Children's Hospital, Karolinska University Hospital, Stockholm, Sweden
| | - Magdalena R Værnesbranden
- Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway; Department of Gynecology and Obstetrics, Østfold Hospital Trust, Kalnes, Norway
| | - Johanna Wiik
- Department of Gynecology and Obstetrics, Østfold Hospital Trust, Kalnes, Norway; Department of Obstetrics and Gynecology, Sahlgrenska Academy, Gothenburg University, Gothenburg, Sweden
| | - Christine Monceyron Jonassen
- Department of Chemistry, Biotechnology and Food Science, Norwegian University of Life Sciences, Ås, Norway; Center for Laboratory Medicine, Østfold Hospital Trust, Kalnes, Norway
| | - Björn Nordlund
- Department of Women's and Children's Health, Karolinska Institute, Stockholm, Sweden; Astrid Lindgren Children's Hospital, Karolinska University Hospital, Stockholm, Sweden
| | - Karin C Lødrup Carlsen
- Division of Paediatric and Adolescent Medicine, Oslo University Hospital, Oslo, Norway; Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway
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12
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Perälä M, Ahola M, Mikkola T, Pelkonen AS, Remitz A, Mäkelä MJ. Young children with moderate-to-severe atopic dermatitis can be treated safely and effectively with either topical tacrolimus or mild corticosteroids. Acta Paediatr 2020; 109:550-556. [PMID: 31483891 DOI: 10.1111/apa.15001] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/28/2019] [Revised: 07/02/2019] [Accepted: 09/03/2019] [Indexed: 01/10/2023]
Abstract
AIM We collected evidence and safety data for topical tacrolimus in small children with atopic dermatitis (AD) and compared the usage with topical corticosteroid. METHODS This was an interim analysis of 75 patients (55% female) at 1 year of an ongoing 3-year randomised open-label comparative follow-up study of topical tacrolimus vs corticosteroid treatment. One- to three-year-old children with moderate-to-severe eczema referred to the Skin and Allergy Hospital in Helsinki, Finland, were enrolled. RESULTS Efficacy parameters, the Eczema Area and Severity Index (EASI), Investigator's Global Assessment (IGA), transepidermal water loss (TEWL), eczema area, serum total immunoglobulin E (IgE) and the blood eosinophil count, showed improvement in both groups during the study. However, patients with signs of early sensitisation at baseline (elevated serum total IgE, elevated eosinophil count, positive prick tests or specific IgEs to aero or food allergens) had statistically significantly lower TEWL at the eczema site and a smaller eczema area at 12 months in the tacrolimus group. No severe adverse effects were seen during the treatment. CONCLUSION Children with AD and signs of early sensitisation appeared to benefit more from early tacrolimus than corticosteroid treatment. Small children may need stronger but nevertheless safe ointment options when treating moderate-to-severe AD.
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Affiliation(s)
- Miia Perälä
- University of Helsinki and Helsinki University Hospital, Skin and Allergy Hospital Helsinki Finland
| | - Maria Ahola
- University of Helsinki and Helsinki University Hospital, Skin and Allergy Hospital Helsinki Finland
| | - Tytti Mikkola
- University of Helsinki and Helsinki University Hospital, Skin and Allergy Hospital Helsinki Finland
| | - Anna S. Pelkonen
- University of Helsinki and Helsinki University Hospital, Skin and Allergy Hospital Helsinki Finland
| | - Anita Remitz
- University of Helsinki and Helsinki University Hospital, Skin and Allergy Hospital Helsinki Finland
| | - Mika J. Mäkelä
- University of Helsinki and Helsinki University Hospital, Skin and Allergy Hospital Helsinki Finland
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13
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Ramirez FD, Chen S, Langan SM, Prather AA, McCulloch CE, Kidd SA, Cabana MD, Chren MM, Abuabara K. Assessment of Sleep Disturbances and Exhaustion in Mothers of Children With Atopic Dermatitis. JAMA Dermatol 2019; 155:556-563. [PMID: 30892577 PMCID: PMC6506883 DOI: 10.1001/jamadermatol.2018.5641] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Importance The well-being and development of children is strongly influenced by parents' physical and psychosocial health. Data from small, clinic-based studies suggest that sleep loss may be common in parents of children with atopic dermatitis (AD), but longitudinal population-based studies are lacking. Objectives To compare sleep disturbances over time between mothers of children with and without AD and to determine whether these disturbances are associated with the child's disease severity and the child's sleep disturbances. Design, Setting, and Participants In the ongoing Avon Longitudinal Study of Parents and Children, all pregnant women residing in Avon, United Kingdom, with an expected delivery date between April 1, 1991, and December 31, 1992, were recruited. Analyses for this study, a secondary analysis of this cohort, were performed from September 2017 to September 2018. Mother-child pairs were followed up with a time-varying measure of child AD activity and severity and self-reported maternal sleep measures repeated at multiple time points between child ages 6 months and 11 years. Main Outcomes and Measures Time-varying binary measures of maternal sleep duration (<6 vs ≥6 hours per night), difficulty falling asleep, early morning awakening, subjectively insufficient sleep, and daytime exhaustion. Results The study followed up 13 988 mother-child pairs from birth for a median duration of 11 (interquartile range, 7-11) years. Among the cohort, 11 585 of 13 972 mothers (82.9%) were aged 21 to 34 years and 12 001 of 12 324 (97.4%) were of white race/ethnicity; 7220 of 13 978 children (51.7%) were male. Sleep duration (adjusted odds ratio [AOR], 1.09; 95% CI, 0.90-1.32) and early morning awakenings (AOR, 1.16; 95% CI, 0.93-1.46) were similar between mothers of children with and without AD. In contrast, mothers of children with AD were more likely to report difficulty falling asleep (AOR, 1.36; 95% CI, 1.01-1.83), subjectively insufficient sleep (AOR, 1.43; 95% CI, 1.24-1.66), and daytime exhaustion (AOR, 1.41; 95% CI, 1.12-1.78) independent of the child's comorbid asthma and/or allergic rhinitis. For all measures, worse child AD severity was associated with worse maternal sleep outcomes. The magnitude and significance of the associations were largely unchanged after adjustment for child sleep disturbances. Conclusions and Relevance Mothers of children with AD reported difficulty falling asleep, subjectively insufficient sleep, and daytime exhaustion throughout the first 11 years of childhood. However, child sleep disturbances did not fully explain maternal sleep disturbances, and future research should investigate other mechanisms. In caring for children with AD, clinicians should consider maternal sleep disturbances and caregiver fatigue.
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Affiliation(s)
- Faustine D Ramirez
- Medical student, Department of Dermatology Program for Clinical Research, University of California, San Francisco
| | - Shelley Chen
- Medical student, Department of Dermatology Program for Clinical Research, University of California, San Francisco
| | - Sinéad M Langan
- Faculty of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, London, United Kingdom
| | - Aric A Prather
- Department of Psychiatry, University of California, San Francisco
| | - Charles E McCulloch
- Department of Dermatology Program for Clinical Research, University of California, San Francisco
| | - Sharon A Kidd
- Department of Dermatology Program for Clinical Research, University of California, San Francisco
| | - Michael D Cabana
- Department of Epidemiology & Biostatistics, University of California, San Francisco.,Department of Pediatrics, University of California, San Francisco.,Philip R. Lee Institute for Health Policy Studies, University of California, San Francisco
| | - Mary-Margaret Chren
- Department of Dermatology, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Katrina Abuabara
- Department of Dermatology Program for Clinical Research, University of California, San Francisco
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14
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Ramirez FD, Chen S, Langan SM, Prather AA, McCulloch CE, Kidd SA, Cabana MD, Chren MM, Abuabara K. Association of Atopic Dermatitis With Sleep Quality in Children. JAMA Pediatr 2019; 173:e190025. [PMID: 30830151 PMCID: PMC6503516 DOI: 10.1001/jamapediatrics.2019.0025] [Citation(s) in RCA: 135] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
Importance Pruritus, a hallmark of atopic dermatitis (AD), is thought to disrupt sleep, yet little is known about how variations in disease activity and severity of this common childhood condition may be associated with sleep patterns over time. Objective To determine whether children with active AD have impaired sleep duration and quality at multiple time points throughout childhood and whether disease severity affects sleep outcomes. Design, Setting, and Participants This longitudinal cohort study used data of children enrolled in the Avon Longitudinal Study of Parents and Children, a population-based birth cohort in Avon, United Kingdom. Participants were children (N = 13 988) alive at 1 year and followed up with repeated measures of self-reported AD and sleep through 16 years of age. This study was based on data collected from 1990 to 2008. Data analysis was performed from September 2017 to September 2018. Main Outcomes and Measures Standardized measure of sleep duration and composite measure of sleep quality, including nighttime awakenings, early morning awakenings, difficulty falling asleep, and nightmares, were repeated at multiple time points between 2 and 16 years of age. Results The study sample comprised 13 988 children (7220 male [51.6%]) followed up for a median (interquartile range [IQR]) duration of 11 (5-14) years. Of this total, 4938 children (35.3%) met the definition of having atopic dermatitis between 2 and 16 years of age. Total sleep duration was similar between children with active AD and without AD at all ages, and the average estimated difference across childhood was a clinically negligible difference of 2 minutes less per day for children with AD (95% CI, -4 to 0 minutes). In contrast, children with active AD were more likely to report worse sleep quality at all time points, with a nearly 50% higher odds of experiencing more sleep-quality disturbances (adjusted odds ratio [aOR], 1.48; 95% CI, 1.33 to 1.66). Children with more severe active disease (quite bad or very bad AD: aOR, 1.68; 95% CI, 1.42 to 1.98) and with comorbid asthma or allergic rhinitis (aOR, 1.79; 95% CI, 1.54 to 2.09) had worse sleep quality. However, even children with mild AD (OR, 1.40; 95% CI, 1.27 to 1.54) or inactive AD (OR, 1.41; 95% CI, 1.28 to 1.55) had statistically significantly increased odds of impaired sleep quality. Conclusions and Relevance Atopic dermatitis appeared to be associated with impaired sleep quality throughout childhood; thus, it is suggested that clinicians should consider sleep quality among all children with AD, especially those with comorbid asthma or allergic rhinitis and severe disease, and that interventions to improve sleep quality are needed.
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Affiliation(s)
- Faustine D Ramirez
- Department of Dermatology Program for Clinical Research, University of California, San Francisco, San Francisco
| | - Shelley Chen
- Department of Dermatology Program for Clinical Research, University of California, San Francisco, San Francisco
| | - Sinéad M Langan
- Faculty of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, London, United Kingdom
| | - Aric A Prather
- Department of Psychiatry, University of California, San Francisco, San Francisco
| | - Charles E McCulloch
- Department of Epidemiology & Biostatistics, University of California, San Francisco, San Francisco
| | - Sharon A Kidd
- Department of Dermatology Program for Clinical Research, University of California, San Francisco, San Francisco
| | - Michael D Cabana
- Department of Epidemiology & Biostatistics, University of California, San Francisco, San Francisco.,Department of Pediatrics, University of California, San Francisco, San Francisco.,Philip R. Lee Institute for Health Policy Studies, University of California, San Francisco, San Francisco
| | - Mary-Margaret Chren
- Department of Dermatology, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Katrina Abuabara
- Department of Dermatology Program for Clinical Research, University of California, San Francisco, San Francisco
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15
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Microbiome of the Skin and Gut in Atopic Dermatitis (AD): Understanding the Pathophysiology and Finding Novel Management Strategies. J Clin Med 2019; 8:jcm8040444. [PMID: 30987008 PMCID: PMC6518061 DOI: 10.3390/jcm8040444] [Citation(s) in RCA: 118] [Impact Index Per Article: 23.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2019] [Revised: 03/25/2019] [Accepted: 03/28/2019] [Indexed: 12/14/2022] Open
Abstract
Atopic dermatitis (AD) is a long-standing inflammatory skin disease that is highly prevalent worldwide. Multiple factors contribute to AD, with genetics as well as the environment affecting disease development. Although AD shows signs of skin barrier defect and immunological deviation, the mechanism underlying AD is not well understood, and AD treatment is often very difficult. There is substantial data that AD patients have a disturbed microbial composition and lack microbial diversity in their skin and gut compared to controls, which contributes to disease onset and atopic march. It is not clear whether microbial change in AD is an outcome of barrier defect or the cause of barrier dysfunction and inflammation. However, a cross-talk between commensals and the immune system is now noticed, and their alteration is believed to affect the maturation of innate and adaptive immunity during early life. The novel concept of modifying skin and gut microbiome by applying moisturizers that contain nonpathogenic biomass or probiotic supplementation during early years may be a preventive and therapeutic option in high risk groups, but currently lacks evidence. This review discusses the nature of the skin and gut flora in AD, possible mechanisms of skin-gut interaction, and the therapeutic implications of microbiome correction in AD.
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16
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Shah R, Newcomb DC. Sex Bias in Asthma Prevalence and Pathogenesis. Front Immunol 2018; 9:2997. [PMID: 30619350 PMCID: PMC6305471 DOI: 10.3389/fimmu.2018.02997] [Citation(s) in RCA: 125] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Accepted: 12/04/2018] [Indexed: 12/24/2022] Open
Abstract
Sex-related differences in asthma prevalence are well established and change through the reproductive phases of life. As children, boys have increased prevalence of asthma compared to girls. However, as adults, women have increased prevalence of asthma compared to men. Many factors, including genetics, environment, immunological responses, and sex hormones, affect the sex disparity associated with the development and control of asthma and other allergic diseases. Fluctuations of hormones during puberty, menstruation, pregnancy, and menopause, alter asthma symptoms and severity. In this article, we review clinical and epidemiological studies that examined the sex disparity in asthma and other allergic diseases as well as the role of sex hormones on asthma pathogenesis.
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Affiliation(s)
- Ruchi Shah
- Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, United States
| | - Dawn C Newcomb
- Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, United States.,Department of Pathology, Microbiology and Immunology, Vanderbilt University, Nashville, TN, United States
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17
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Kennedy K, Heimall J, Spergel JM. Advances in atopic dermatitis in 2017. J Allergy Clin Immunol 2018; 142:1740-1747. [PMID: 30359683 DOI: 10.1016/j.jaci.2018.10.012] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2018] [Revised: 10/07/2018] [Accepted: 10/12/2018] [Indexed: 02/01/2023]
Abstract
This review encompasses relevant scientific and clinical advances in atopic dermatitis (AD) published in 2017. These include articles from the Journal of Allergy and Clinical Immunology, as well as other prominent publications that have contributed to the emerging field, on the microenvironment of the skin and molecular patterns guiding biologic treatment strategies. The most commonly questioned and explored themes of the year included the effect of the microbiome on AD development, as well as cell signaling and symptom severity. Topics also included the description of patient-specific molecular endotypes within the larger population with AD. All of these factors will create potential opportunities to guide personalized therapy with the broadening array of topical and systemic interventions currently available, as well as providing new insights to guide the development of novel molecularly targeted therapeutics. With recent US Food and Drug Administration approval of the first wave of new targeted therapies for AD, additional information exploring the safety profiles and long-term effects of these medications was also at the forefront in 2017.
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Affiliation(s)
- Katie Kennedy
- Division of Allergy-Immunology, Children's Hospital of Philadelphia, Philadelphia, Pa.
| | - Jennifer Heimall
- Division of Allergy-Immunology, Children's Hospital of Philadelphia, Philadelphia, Pa; Department of Pediatrics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pa
| | - Jonathan M Spergel
- Division of Allergy-Immunology, Children's Hospital of Philadelphia, Philadelphia, Pa; Department of Pediatrics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pa
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Belugina IN, Yagovdik NZ, Belugina OS, Belugin SN. Outdoor environment, ozone, radionuclide-associated aerosols and incidences of infantile eczema in Minsk, Belarus. J Eur Acad Dermatol Venereol 2018; 32:1977-1985. [PMID: 29730889 DOI: 10.1111/jdv.15063] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2017] [Accepted: 04/27/2018] [Indexed: 12/16/2022]
Abstract
BACKGROUND The early occurrence of atopic dermatitis in infants may be influenced by urban air pollution. OBJECTIVE The aim of this study was to determine the relationship between incidences of infantile eczema in children under 2 years of age and urban outdoor environmental factors. METHODS A 11-year population-based study was conducted in retrospective design. The age/gender-adjusted incidence rates of infantile eczema were determined using the data of outpatient visits. We analysed 1965 cases with atopic dermatitis including infantile eczema in relation to the annual means of outdoor monitoring data from 2005 through 2015 in Minsk. Logistic regression and principal component analysis were performed to determine association between the annual means of air pollutants, meteorological variables and incidences of infantile eczema. RESULTS Higher mean annual carbon monoxide, ammonia, formaldehyde, lead, particulate matter and ground-level ozone were associated with high incidence rates of infantile eczema both in boys and girls. Higher nitrogen dioxide was associated with high incidence rates of infantile eczema in girls 1-2 years of age and boys 0-2 years of age. There were identified by principal component analysis five combinations of pollutants and meteorological factors. High incidence rates of infantile eczema were associated with the combinations contained higher levels of air pollutants and ultraviolet index, or lower β-activity of the radionuclide-associated aerosols. The higher phenol and formaldehyde levels the higher incidence rates of infantile eczema were observed among boys 0-1 years of age and girls 1-2 years of age. The higher total column ozone with lower lead level was associated with low incidence rates of infantile eczema among boys and girls 1-2 years of age. CONCLUSION Urban outdoor air pollutants and their combination with meteorological conditions may impact onset of infantile eczema in both genders.
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Affiliation(s)
- I N Belugina
- Department of Venereology and Dermatology, Belarusian State Medical University, Minsk, Belarus
| | - N Z Yagovdik
- Department of Venereology and Dermatology, Belarusian State Medical University, Minsk, Belarus
| | - O S Belugina
- Department of Psychiatry, Belarusian State Medical University, Minsk, Belarus
| | - S N Belugin
- Department of Radiation and Environmental Medicine, Belarusian State Medical University, Minsk, Belarus
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Tran MM, Lefebvre DL, Dharma C, Dai D, Lou WYW, Subbarao P, Becker AB, Mandhane PJ, Turvey SE, Sears MR. Predicting the atopic march: Results from the Canadian Healthy Infant Longitudinal Development Study. J Allergy Clin Immunol 2017; 141:601-607.e8. [PMID: 29153857 DOI: 10.1016/j.jaci.2017.08.024] [Citation(s) in RCA: 104] [Impact Index Per Article: 14.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2017] [Revised: 08/10/2017] [Accepted: 08/23/2017] [Indexed: 12/16/2022]
Abstract
BACKGROUND The atopic march describes the progression from atopic dermatitis during infancy to asthma and allergic rhinitis in later childhood. In a Canadian birth cohort we investigated whether concomitant allergic sensitization enhances subsequent development of these allergic diseases at age 3 years. METHODS Children completed skin prick testing at age 1 year. Children were considered sensitized if they produced a wheal 2 mm or larger than that elicited by the negative control to any of 10 inhalant or food allergens. Children were also assessed for atopic dermatitis by using the diagnostic criteria of the UK Working Party. At age 3 years, children were assessed for asthma, allergic rhinitis, food allergy, and atopic dermatitis. Data from 2311 children were available. RESULTS Atopic dermatitis without allergic sensitization was not associated with an increased risk of asthma at age 3 years after adjusting for common confounders (relative risk [RR], 0.46; 95% CI, 0.11-1.93). Conversely, atopic dermatitis with allergic sensitization increased the risk of asthma more than 7-fold (RR, 7.04; 95% CI, 4.13-11.99). Atopic dermatitis and allergic sensitization had significant interactions on both the additive (relative excess risk due to interaction, 5.06; 95% CI, 1.33-11.04) and multiplicative (ratio of RRs, 5.80; 95% CI, 1.20-27.83) scales in association with asthma risk. There was also a positive additive interaction between atopic dermatitis and allergic sensitization in their effects on food allergy risk (relative excess risk due to interaction, 15.11; 95% CI, 4.19-35.36). CONCLUSIONS Atopic dermatitis without concomitant allergic sensitization was not associated with an increased risk of asthma. In combination, atopic dermatitis and allergic sensitization had strong interactive effects on both asthma and food allergy risk at age 3 years.
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Affiliation(s)
- Maxwell M Tran
- Department of Medicine, McMaster University, Hamilton, Ontario, Canada
| | - Diana L Lefebvre
- Department of Medicine, McMaster University, Hamilton, Ontario, Canada
| | | | - David Dai
- Department of Medicine, McMaster University, Hamilton, Ontario, Canada
| | - Wendy Y W Lou
- Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada
| | - Padmaja Subbarao
- Department of Pediatrics, University of Toronto and Hospital for Sick Children, Toronto, Ontario, Canada
| | - Allan B Becker
- Department of Pediatrics & Child Health, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Piush J Mandhane
- Department of Pediatrics, University of Alberta, Edmonton, Alberta, Canada
| | - Stuart E Turvey
- Department of Pediatrics, University of British Columbia, Vancouver, British Columbia, Canada
| | - Malcolm R Sears
- Department of Medicine, McMaster University, Hamilton, Ontario, Canada.
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Cooke A, Bedwell C, Campbell M, McGowan L, Ersser SJ, Lavender T. Skin care for healthy babies at term: A systematic review of the evidence. Midwifery 2017; 56:29-43. [PMID: 29055852 DOI: 10.1016/j.midw.2017.10.001] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2017] [Revised: 10/02/2017] [Accepted: 10/03/2017] [Indexed: 12/18/2022]
Abstract
OBJECTIVES to identify what skin practices are important for the protection of baby skin in healthy term babies (0-6 months) and generate evidence-based conclusions to inform health professionals and parents. DESIGN eleven databases were searched for all empirical quantitative and qualitative research published between 2000-2015 which explored baby skin care for bathing and cleansing, nappy care, hair and scalp care, management of dry skin or baby massage, for healthy term babies up to 6 months old. Papers not published in English were excluded. A total of 3062 papers were identified. Pairs of reviewers assessed all citations and extracted data independently. There were 26 included papers: 16 RCTs, 3 non-randomised experimental studies, 1 mixed-methods study and 6 qualitative studies. Primary and secondary outcome measures were analysed using meta-analysis or narrative descriptive statistics. Synthesis of qualitative data was not possible due to disparity of the evidence. FINDINGS from the small numbers of studies with comparable data, there was no evidence of any significant differences between tested wash products and water or tested baby wipes and water. There was some evidence to suggest that daily use of full-body emollient therapy may help to reduce the risk of atopic eczema in high risk babies with a genetic predisposition to eczema; however, the use of olive oil or sunflower oil for baby dry skin may adversely affect skin barrier function. There was no evidence about hair/scalp care or baby massage. Qualitative research indicates that parents and health professionals believe that water alone is best. KEY CONCLUSIONS meta-analysis was restricted due to the lack of consistency of study outcome measures. Although there is considerable RCT evidence comparing the use of specific products against water alone, or another product, for bathing, cleansing and nappy care, the power of this evidence is reduced due to inconsistency of outcome measures in terms of outcome, treatment site or time-point. The development of a core outcome measure set is advocated for trials assessing skin care practices. IMPLICATIONS FOR PRACTICE this review offers health professionals best evidence available on which to base their advice. Of those studies with comparative outcomes, the evidence indicates no difference between the specific products tested and water alone; offering parents a choice in their baby skin care regimen. Protocol available: http://www.crd.york.ac.uk/PROSPEROFILES/28054_PROTOCOL_20151009.pdf.
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Affiliation(s)
- Alison Cooke
- Division of Nursing, Midwifery and Social Work, School of Health Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Jean McFarlane Building Room 4.336, Oxford Road, Manchester M13 9PL, UK.
| | - Carol Bedwell
- Division of Nursing, Midwifery and Social Work, School of Health Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, UK.
| | - Malcolm Campbell
- Division of Nursing, Midwifery and Social Work, School of Health Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, UK.
| | - Linda McGowan
- School of Healthcare, Faculty of Medicine and Health, University of Leeds, Baines Wing, Leeds LS2 9JT, UK.
| | - Steven J Ersser
- Department of Health Sciences, Faculty of Science, University of York, Seebohm Rowntree Building, Heslington, York YO10 5DD, UK.
| | - Tina Lavender
- Division of Nursing, Midwifery and Social Work, School of Health Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, UK.
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Heede NG, Thuesen BH, Thyssen JP, Linneberg A, Szecsi PB, Stender S, Menné T, Johansen JD. Hand eczema, atopic dermatitis and filaggrin mutations in adult Danes: a registry-based study assessing risk of disability pension. Contact Dermatitis 2017; 77:95-105. [DOI: 10.1111/cod.12786] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2016] [Revised: 01/16/2017] [Accepted: 02/05/2017] [Indexed: 02/01/2023]
Affiliation(s)
- Nina G. Heede
- Department of Dermatology and Allergy, The National Allergy Research Centre; Copenhagen University Hospital Herlev-Gentofte; 2900 Hellerup Denmark
| | - Betina H. Thuesen
- Research Centre for Prevention and Health, the Capital Region of Denmark; 2600 Glostrup Denmark
| | - Jacob P. Thyssen
- Department of Dermatology and Allergy, The National Allergy Research Centre; Copenhagen University Hospital Herlev-Gentofte; 2900 Hellerup Denmark
| | - Allan Linneberg
- Research Centre for Prevention and Health, the Capital Region of Denmark; 2600 Glostrup Denmark
- Department of Clinical Experimental Research; Rigshospitalet; 2600 Glostrup Denmark
- Faculty of Health and Medical Sciences, Department of Clinical Medicine; University of Copenhagen; 2200 Copenhagen Denmark
| | - Pal B. Szecsi
- Department of Clinical Biochemistry; Copenhagen University Hospital Herlev-Gentofte; 2900 Hellerup Denmark
| | - Steen Stender
- Department of Clinical Biochemistry; Copenhagen University Hospital Herlev-Gentofte; 2900 Hellerup Denmark
| | - Torkil Menné
- Department of Dermatology and Allergy, The National Allergy Research Centre; Copenhagen University Hospital Herlev-Gentofte; 2900 Hellerup Denmark
| | - Jeanne D. Johansen
- Department of Dermatology and Allergy, The National Allergy Research Centre; Copenhagen University Hospital Herlev-Gentofte; 2900 Hellerup Denmark
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Pickett K, Loveman E, Kalita N, Frampton GK, Jones J. Educational interventions to improve quality of life in people with chronic inflammatory skin diseases: systematic reviews of clinical effectiveness and cost-effectiveness. Health Technol Assess 2016; 19:1-176, v-vi. [PMID: 26502807 DOI: 10.3310/hta19860] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
BACKGROUND Inflammatory skin diseases include a broad range of disorders. For some people, these conditions lead to psychological comorbidities and reduced quality of life (QoL). Patient education is recommended in the management of these conditions and may improve QoL. OBJECTIVES To assess the clinical effectiveness and cost-effectiveness of educational interventions to improve health-related quality of life (HRQoL) in people with chronic inflammatory skin diseases. DATA SOURCES Twelve electronic bibliographic databases, including The Cochrane Library, MEDLINE and EMBASE, were searched to July 2014. Bibliographies of retrieved papers were searched and an Advisory Group contacted. REVIEW METHODS Systematic reviews were conducted following standard methodologies. Clinical effectiveness studies were included if they were undertaken in people with a chronic inflammatory skin condition. Educational interventions that aimed to, or could, improve HRQoL were eligible. Studies were required to measure HRQoL, and other outcomes such as disease severity were also included. Randomised controlled trials (RCTs) or controlled clinical trials were eligible. For the review of cost-effectiveness, studies were eligible if they were full economic evaluations, cost-consequence or cost analyses. RESULTS Seven RCTs were included in the review of clinical effectiveness. Two RCTs focused on children with eczema and their carers. Five RCTs were in adults. Of these, two were of people with psoriasis, one was of people with acne and two were of people with a range of conditions. There were few similarities in the interventions (e.g. the delivery mode, the topics covered, the duration of the education), which precluded any quantitative synthesis. Follow-up ranged from 4 weeks to 12 months, samples sizes were generally small and, overall, the study quality was poor. There appeared to be positive effects on HRQoL in participants with psoriasis in one trial, but no difference between groups in another trial in which participants had less severe psoriasis. Carers of children in one RCT of eczema showed improvement in HRQoL; however, in a RCT evaluating a website intervention there were no demonstrable effects on HRQoL. Neither the RCT in those adults with acne nor the RCT in those adults with mixed skin conditions demonstrated an effect on HRQoL. One RCT reported subgroups with atopic dermatitis or psoriasis and education was effective for psoriasis only. Other outcomes also showed mixed results. It is unclear how clinically meaningful any of the observed improvements are. Three studies of cost-effectiveness were included. The interventions, comparators and populations varied across the studies and, overall, the studies provided limited information on cost-effectiveness. The studies did provide detailed information on resources and costs that could be useful to inform a future cost-effectiveness evaluation in this area. LIMITATIONS The application of the inclusion criterion around whether the interventions were aimed at improving HRQoL or the inference that they could improve HRQoL was difficult as information was rarely reported. CONCLUSIONS There is uncertainty regarding whether educational interventions addressing issues that could improve HRQoL in people with chronic skin conditions are effective. Tentative conclusions about the best approach to delivering these kinds of interventions are that face-to-face, group, sessions may be beneficial; however, text messages may also be effective. Delivery over a period of time and by a multidisciplinary team may also be associated with positive outcomes. There is uncertainty over whether or not educational interventions are cost-effective. STUDY REGISTRATION This study is registered as PROSPERO CRD42014007426. FUNDING The National Institute for Health Research Health Technology Assessment programme.
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Affiliation(s)
| | - Emma Loveman
- Southampton Health Technology Assessments Centre (SHTAC), University of Southampton, Southampton, UK
| | - Neelam Kalita
- Southampton Health Technology Assessments Centre (SHTAC), University of Southampton, Southampton, UK
| | - Geoff K Frampton
- Southampton Health Technology Assessments Centre (SHTAC), University of Southampton, Southampton, UK
| | - Jeremy Jones
- Southampton Health Technology Assessments Centre (SHTAC), University of Southampton, Southampton, UK
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Proshutinskaya DV. Atopic dermatitis in children. A current algorithm for the disease treatment and control. VESTNIK DERMATOLOGII I VENEROLOGII 2016. [DOI: 10.25208/0042-4609-2016-92-2-65-70] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022] Open
Abstract
The article discusses key aspects of the pathogenesis of atopic dermatitis and issues of the selection of pathogenetically substantiated therapy methods. The authors provide data on the efficient use of basic drugs used to treat dermatosis in children - topical glucocorticosteroids and calcineurin inhibitors. The authors also describe a current algorithm for using topical calcineurin inhibitors during the period of an exacerbation of atopic dermatitis and to prevent relapses.
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24
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What happens in the skin? Integrating skin permeation kinetics into studies of developmental and reproductive toxicity following topical exposure. Reprod Toxicol 2015; 58:252-81. [DOI: 10.1016/j.reprotox.2015.10.001] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2014] [Revised: 08/31/2015] [Accepted: 10/07/2015] [Indexed: 02/07/2023]
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Healy E, Brown SJ, Langan SM, Nicholls SG, Shams K, Reynolds NJ. Identification of translational dermatology research priorities in the U.K.: results of an electronic Delphi exercise. Br J Dermatol 2015; 173:1191-1198. [PMID: 26149834 PMCID: PMC5038882 DOI: 10.1111/bjd.14022] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/02/2015] [Indexed: 01/29/2023]
Abstract
BACKGROUND Translational research is the direct application of basic and applied research to patient care. It is estimated that there are at least 2000 different skin diseases; thus, there are considerable challenges in seeking to undertake research on each of these disorders. OBJECTIVES This electronic Delphi (e-Delphi) exercise was conducted in order to generate a list of translational dermatology research questions that are regarded as a priority for further investigations. METHODS During the first phase of the e-Delphi exercise, 228 research questions were generated by an expert panel that included clinical academic dermatologists, clinical dermatologists, nonclinical scientists, dermatology trainees and representatives from patient support groups. RESULTS Following completion of the second and third phases, 40 questions on inflammatory skin disease, 20 questions on structural skin disorders/genodermatoses, 37 questions on skin cancer and eight miscellaneous questions were designated as priority translational dermatology research questions (PRQs). In addition to PRQs on a variety of disease areas (including multiple PRQs on psoriasis, eczema, squamous cell carcinoma and melanoma), there were a number of cross-cutting themes that identified a need to investigate mechanisms/pathogenesis of disease and the necessity to improve treatments for patients with skin disease. CONCLUSIONS It is predicted that this list of PRQs will help to provide a strategic direction for translational dermatology research in the U.K. and that addressing this list of questions will ultimately provide clinical benefit for substantial numbers of patients with skin disorders.
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Affiliation(s)
- E Healy
- Dermatopharmacology, Sir Henry Wellcome Laboratories, Faculty of Medicine, University of Southampton, Southampton, UK
- Southampton Dermatology Centre, Royal South Hants Hospital, University Hospitals Southampton NHS Foundation Trust, Southampton, UK
| | - S J Brown
- Department of Dermatology, Ninewells Hospital & Medical School, Dundee, UK
- Dermatology & Genetic Medicine, Medical Research Institute, University of Dundee, Dundee, UK
| | - S M Langan
- Faculty of Epidemiology and Population Health, London School of Tropical Medicine, London, UK
| | - S G Nicholls
- Department of Epidemiology and Community Medicine, Faculty of Medicine, University of Ottawa, Ottawa, Canada
| | - K Shams
- Chemokine Research Group, Institute of Infection, Immunity and Inflammation, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK
| | - N J Reynolds
- Dermatology, Institute of Cellular Medicine, Medical School, Newcastle University, Newcastle upon Tyne, UK
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Zaslavsky DV. Пимекролимус в лечении атопического дерматита у детей. Вопросы безопасности и эффективности. Опыт пятилетнего применения. VESTNIK DERMATOLOGII I VENEROLOGII 2015. [DOI: 10.25208/0042-4609-2015-91-4-119-125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022] Open
Abstract
A growth in the incidence rate for atopic dermatitis (AD) in infants has been observed for this decade. Early formation of AD (at the age of 3-6 months) is observed in 45% of infants, and in 60% of infants - during the first year of life. As many as 65% of children (by the age of 7) and 74% of children (by the age of 16) suffering from AD have a spontaneous remission of the disease. As many as 20-43% of children suffering from AD further develop bronchial asthma, and the incidence rate of allergic rhinitis is twice as high. In spite of the fact that topical corticosteroids (TCS) are prescribed frequently enough, there is a need in the non-hormonal therapy due to poor compliance with the TCS treatment regimen in connection with side effects. Treatment of AD is often complicated by the colonization with Staphylococcus aureus and inefficacy of the external therapy with topical corticosteroids because many patients with AD have a high level of IgE against the superantigen of Staphylococcus. 1% pimecrolimus cream (PIM) and TCS were compared in a long-term large-scale study involving younger children suffering from mild to moderate AD. Materials and methods. The five-year open-label study involved 2,418 children, who were randomized into groups receiving PIM (n = 1205; in case of an aggravation - short-term administration of TCS) or TCS (n = 1213). The main goal of the study was to compare the safety of these two methods of treatment; an auxiliary goal was to confirm the long-term efficacy of PIM. Treatment was considered to be successful if the score based on the IGA scale was 0 (clean skin) or 1 (almost clean). Results. The effect in both groups of the drugs - PIM and TCS - was fast, and the success of treatment was recorded for >50% of patients by Week 3. In both groups, treatment was determined to be successful after 5 years in >85% of patients, and treatment of manifestations of AD on the face was efficient in 95% of all subjects. In the PIM group, the need in steroids was considerably lower than in the TCS group (7 days of administration vs. 178 days in the TCS group). In both groups, there were adverse events similar by their nature and frequency, and no disorders of humoral or cellular immunity were revealed. Conclusions. The long-term administration of PIM in case of mild to moderate AD in children was revealed to be safe and had no effect on the immune system. When PIM was used, the need in corticosteroids was considerably reduced (steroid-preserving effect). These data confirm that PIM is as efficient as TCS and can be used as the first-line therapy for mild to moderate AD in infants and younger children.
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Sigurgeirsson B, Boznanski A, Todd G, Vertruyen A, Schuttelaar MLA, Zhu X, Schauer U, Qaqundah P, Poulin Y, Kristjansson S, von Berg A, Nieto A, Boguniewicz M, Paller AS, Dakovic R, Ring J, Luger T. Safety and efficacy of pimecrolimus in atopic dermatitis: a 5-year randomized trial. Pediatrics 2015; 135:597-606. [PMID: 25802354 DOI: 10.1542/peds.2014-1990] [Citation(s) in RCA: 88] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 01/05/2015] [Indexed: 11/24/2022] Open
Abstract
BACKGROUND AND OBJECTIVES Atopic dermatitis (AD) primarily affects infants and young children. Although topical corticosteroids (TCSs) are often prescribed, noncorticosteroid treatments are needed because compliance with TCSs is poor due to concerns about their side effects. In this longest and largest intervention study ever conducted in infants with mild-to-moderate AD, pimecrolimus 1% cream (PIM) was compared with TCSs. METHODS A total of 2418 infants were enrolled in this 5-year open-label study. Infants were randomized to PIM (n = 1205; with short-term TCSs for disease flares) or TCSs (n = 1213). The primary objective was to compare safety; the secondary objective was to document PIM's long-term efficacy. Treatment success was defined as an Investigator's Global Assessment score of 0 (clear) or 1 (almost clear). RESULTS Both PIM and TCSs had a rapid onset of action with >50% of patients achieving treatment success by week 3. After 5 years, >85% and 95% of patients in each group achieved overall and facial treatment success, respectively. The PIM group required substantially fewer steroid days than the TCS group (7 vs 178). The profile and frequency of adverse events was similar in the 2 groups; in both groups, there was no evidence for impairment of humoral or cellular immunity. CONCLUSIONS Long-term management of mild-to-moderate AD in infants with PIM or TCSs was safe without any effect on the immune system. PIM was steroid-sparing. The data suggest PIM had similar efficacy to TCS and support the use of PIM as a first-line treatment of mild-to-moderate AD in infants and children.
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Affiliation(s)
- Bardur Sigurgeirsson
- Faculty of Medicine, Department of Dermatology, University of Iceland, Reykjavik, Iceland;
| | - Andrzej Boznanski
- Department of Children Allergology and Cardiology, Wroclaw Medical University, Wroclaw, Poland
| | - Gail Todd
- Department of Medicine, University of Cape Town, Cape Town, South Africa
| | | | - Marie-Louise A Schuttelaar
- Department of Dermatology, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
| | - Xuejun Zhu
- Department of Dermatology, Peking University First Hospital, Beijing, China
| | - Uwe Schauer
- Klinik für Kinder und Jugendmedizin, der Ruhruniversität Bochum, Bochum, Germany
| | - Paul Qaqundah
- Pediatric Care Medical Group, Huntington Beach, California, and University of California, Irvine, California
| | - Yves Poulin
- Laval University, Hôpital Hôtel-Dieu de Québec, Dermatology Unit and Centre de Recherche Dermatologique du Québec Métropolitain, Quebec City, Canada
| | | | - Andrea von Berg
- Research Institute, Children's Department, Marien-Hospital-Wesel, Wesel, Germany
| | - Antonio Nieto
- Pediatric Pulmonology & Allergy Unit, Children's Hospital La Fe, Valencia, Spain
| | - Mark Boguniewicz
- Division of Pediatric Allergy-Immunology, Department of Pediatrics, National Jewish Health and University of Colorado School of Medicine, Denver, Colorado
| | - Amy S Paller
- Departments of Dermatology and Pediatrics, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | | | - Johannes Ring
- Department of Dermatology and Allergology Biederstein, Christine Kühne-Center for Allergy Research and Education, Technische Universität München, Munich, Germany; and
| | - Thomas Luger
- Department of Dermatology, University of Münster, Münster, Germany
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Allen SJ, Jordan S, Storey M, Thornton CA, Gravenor MB, Garaiova I, Plummer SF, Wang D, Morgan G. Probiotics in the prevention of eczema: a randomised controlled trial. Arch Dis Child 2014; 99:1014-9. [PMID: 24947281 PMCID: PMC4215350 DOI: 10.1136/archdischild-2013-305799] [Citation(s) in RCA: 73] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
OBJECTIVE To evaluate a multistrain, high-dose probiotic in the prevention of eczema. DESIGN A randomised, double-blind, placebo-controlled, parallel group trial. SETTINGS Antenatal clinics, research clinic, children at home. PATIENTS Pregnant women and their infants. INTERVENTIONS Women from 36 weeks gestation and their infants to age 6 months received daily either the probiotic (Lactobacillus salivarius CUL61, Lactobacillus paracasei CUL08, Bifidobacterium animalis subspecies lactis CUL34 and Bifidobacterium bifidum CUL20; total of 10(10) organisms/day) or matching placebo. MAIN OUTCOME MEASURE Diagnosed eczema at age 2 years. Infants were followed up by questionnaire. Clinical examination and skin prick tests to common allergens were done at 6 months and 2 years. RESULTS The cumulative frequency of diagnosed eczema at 2 years was similar in the probiotic (73/214, 34.1%) and placebo arms (72/222, 32.4%; OR 1.07, 95% CI 0.72 to 1.6). Among the secondary outcomes, the cumulative frequency of skin prick sensitivity at 2 years was reduced in the probiotic (18/171; 10.5%) compared with the placebo arm (32/173; 18.5%; OR 0.52, 95% CI 0.28 to 0.98). The statistically significant differences between the arms were mainly in sensitisation to cow's milk and hen's egg proteins at 6 months. Atopic eczema occurred in 9/171 (5.3%) children in the probiotic arm and 21/173 (12.1%) in the placebo arm (OR 0.40, 95% CI 0.18 to 0.91). CONCLUSIONS The study did not provide evidence that the probiotic either prevented eczema during the study or reduced its severity. However, the probiotic seemed to prevent atopic sensitisation to common food allergens and so reduce the incidence of atopic eczema in early childhood. TRIAL REGISTRATION NUMBER ISRCTN26287422.
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Affiliation(s)
| | - Sue Jordan
- College of Human and Health Sciences, Swansea University, Swansea, UK
| | | | | | | | - Iveta Garaiova
- Research and Development Department, Cultech Limited, Port Talbot, UK
| | - Susan F Plummer
- Research and Development Department, Cultech Limited, Port Talbot, UK
| | - Duolao Wang
- Liverpool School of Tropical Medicine, Liverpool, L3 5QA, UK
| | - Gareth Morgan
- College of Medicine, Swansea University, Swansea, UK
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Huang C, Sheng Y. Pimecrolimus cream 1% in the management of atopic dermatitis in pediatric patients: a meta-analysis. PLoS One 2014; 9:e93095. [PMID: 24691404 PMCID: PMC3972203 DOI: 10.1371/journal.pone.0093095] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2013] [Accepted: 03/01/2014] [Indexed: 11/29/2022] Open
Abstract
Objective To evaluate the efficacy and safety of pimecrolimus cream 1% in the treatment of AD in the pediatric population. Methods PubMed, EMBASE, Web of Science and Cochrane library databases were searched till July 2013. The randomized and nonrandomized blinded studies of pimecrolimus cream 1% applied twice daily with Jaded score ≥3 in pediatric patients with AD were included. The efficacy outcomes included investigator global assessment (IGA), eczema area and severity index (EASI) scores, pruritus and care giver's assessments and flares free period. Adverse events were reviewed to assess the safety. Results Out of 81 studies, 7 were selected that enrolled 2,170 pediatric patients. The pooled analysis reported that pimecrolimus was no better to vehicle reducing eczema at day-8, day-26 and six weeks (OR 4.95, 95% CI 2.79–8.80), (OR 9.69, 95% CI 4.12–22.83) and (OR 3.83. 95% CI 1.94–7.56), respectively in children. Similarly, pimecrolimus did not show beneficial effects when analyzed for mild or absent pruritus at day 4 (OR 8.29, 95% CI 3.88–17.72 favoring vehicle), day 43 (OR 1.81 95% CI 1.13–2.89 favoring vehicle) and 1 week (OR 2.29, 95%CI 1.45 to 3.60 favoring vehicle) as compared with vehicle. One study comparing pimecrolimus with tacrolimus found no significant difference in achieving mild or absent pruritus (OR 0.94, 95% CI 0.44–1.99). More patients showed an improvement in overall disease in vehicle group at day 8 (OR 3.30, 95% CI 2.03–5.35), day 29 (OR 14.14, 95% CI 6.87–29.13) and day 43 (OR 4.11, 95% CI 2.59–6.52) as compared with pimecrolimus 1% group, as assessed by caregivers. No significant difference was seen between the total AEs in both groups (pimecrolimus vs vehicle/tacrolimus) (OR 1.19, 95% CI 0.85, 1.65) Conclusion The results of the present meta-analysis showed that pimecrolimus cream 1% was not significantly better to vehicle for AD in pediatrics population.
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Affiliation(s)
- Chunyun Huang
- Department of Dermatology, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, China
| | - Youyu Sheng
- Department of Dermatology, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, China
- * E-mail:
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Ghazarian L, Diana J, Simoni Y, Beaudoin L, Lehuen A. Prevention or acceleration of type 1 diabetes by viruses. Cell Mol Life Sci 2013; 70:239-55. [PMID: 22766971 PMCID: PMC11113684 DOI: 10.1007/s00018-012-1042-1] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2011] [Revised: 05/22/2012] [Accepted: 05/24/2012] [Indexed: 12/31/2022]
Abstract
Type 1 diabetes is an autoimmune disease characterized by the destruction of insulin-producing pancreatic β-cells. Even though extensive scientific research has yielded important insights into the immune mechanisms involved in pancreatic β-cell destruction, little is known about the events that trigger the autoimmune process. Recent epidemiological and experimental data suggest that environmental factors are involved in this process. In this review, we discuss the role of viruses as an environmental factor on the development of type 1 diabetes, and the immune mechanisms by which they can trigger or protect against this pathology.
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Affiliation(s)
- Liana Ghazarian
- Hôpital Saint Vincent de Paul/Cochin, Batiment Petit, 82 Avenue Denfert-Rochereau, 75014 Paris, France
| | - Julien Diana
- Hôpital Saint Vincent de Paul/Cochin, Batiment Petit, 82 Avenue Denfert-Rochereau, 75014 Paris, France
| | - Yannick Simoni
- Hôpital Saint Vincent de Paul/Cochin, Batiment Petit, 82 Avenue Denfert-Rochereau, 75014 Paris, France
| | - Lucie Beaudoin
- Hôpital Saint Vincent de Paul/Cochin, Batiment Petit, 82 Avenue Denfert-Rochereau, 75014 Paris, France
| | - Agnès Lehuen
- Hôpital Saint Vincent de Paul/Cochin, Batiment Petit, 82 Avenue Denfert-Rochereau, 75014 Paris, France
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Crack LR, Chan HW, McPherson T, Ogg GS. Identification of an immunodominant region of the major house dust mite allergen Der p 2 presented by common human leucocyte antigen alleles. Clin Exp Dermatol 2012; 37:266-76. [PMID: 22188309 DOI: 10.1111/j.1365-2230.2011.04227.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
BACKGROUND Better understanding of the relevance of the immune response to common environmental allergens, such as the major house dust mite (HDM) allergen Der p 2, requires characterization of constituent T-cell epitopes. AIM To identify CD4(+) T-cell epitopes within Der p 2 recognized by commonly expressed human leucocyte antigen (HLA) alleles. METHODS HLA-blocking antibodies, peptide pools and truncations were used in ELISpot assays to establish restricted T-cell epitopes. RESULTS People with and without atopic dermatitis have detectable Der p 2-specific T cells in the peripheral blood, which can proliferate in response to Der p 2 peptides. Interleukin-4-specific responses, both ex vivo and cultured to Der p 2 peptides, had a significant positive correlation with HDM-specific serum IgE. Within one pool of Der p 2 peptides, the 20mer D11 was found to induce multiple responses restricted through several alleles, including HLA-DPB1*0401 and HLA-DRB1*01. CONCLUSIONS We have identified an immunogenic region of Der p 2 presented by common HLA class II alleles, including the most commonly expressed HLA allele DPB1*0401. Identification of such epitopes may be of future value in peptide immunotherapeutic approaches.
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Affiliation(s)
- L R Crack
- MRC Human Immunology Unit, University of Oxford, Weatherall Institute of Molecular Medicine, Oxford, UK
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Jedrychowski W, Spengler JD, Maugeri U, Miller RL, Budzyn-Mrozek D, Perzanowski M, Flak E, Mroz E, Majewska R, Kaim I, Perera F. Effect of prenatal exposure to fine particulate matter and intake of Paracetamol (Acetaminophen) in pregnancy on eczema occurrence in early childhood. THE SCIENCE OF THE TOTAL ENVIRONMENT 2011; 409:5205-5209. [PMID: 21962593 PMCID: PMC3428593 DOI: 10.1016/j.scitotenv.2011.08.068] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2010] [Revised: 08/22/2011] [Accepted: 08/29/2011] [Indexed: 05/31/2023]
Abstract
The goal of the study was to test the hypothesis that prenatal Paracetamol exposure increases the risk of developing eczema in early childhood and that this association may be stronger in children who are exposed in fetal period to higher concentrations of fine particulate matter (PM2.5). The study sample consisted of 322 women recruited from January 2001 to February 2004 in the Krakow inner city area who gave birth to term babies and completed 5-year follow-up. Paracetamol use in pregnancy was collected by interviews and prenatal personal exposure to PM2.5 over 48 h was measured in recruited women in the second trimester of pregnancy. After delivery, every three months in the first 24 months of the newborn's life and every 6 months later, a detailed standardized face-to-face interview on the infant's health was administered to each mother by trained interviewers. During the interviews at each of the study periods after birth, a history of eczema was recorded. The incident rate ratio (IRR) for frequency of eczema events over the follow-up was estimated from the Poisson regression model and the overall effect of main exposure variables on eczema was assessed by odds ratios (ORs) by the logistic model. The estimated relative risk of eczema occurring whenever in the follow-up was related significantly neither with prenatal Paracetamol nor higher PM2.5 exposure, however, their joint effect was significant (OR interaction term=6.04; 95%CI: 1.04-35.16). Of potential confounders considered in the analysis only damp/moldy home significantly increased the risk of eczema (OR=1.53; 95%CI: 1.14-2.05). In contrast, there was an inverse significant association between the presence of older siblings and eczema (OR=0.55; 95%CI: 0.35-0.84). The joint effect of the main exposure variables significantly increased frequency of eczema events (IRR=1.78, 95%CI: 1.22-2.61). In conclusion, the findings of the study suggest that Paracetamol use by mothers in pregnancy is not an independent risk factor for eczema in children, however, even very small doses of Paracetamol taken in pregnancy may contribute to the occurrence of allergic symptoms in early childhood if there is prenatal co-exposure to higher airborne fine particulate matter.
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Affiliation(s)
- Wieslaw Jedrychowski
- Epidemiology and Preventive Medicine, Jagiellonian University Medical College, Krakow, Poland.
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Mandelin JM, Rubins A, Remitz A, Cirule K, Dickinson J, Ho V, Mäkelä MJ, Rubins S, Reitamo S, Undre N. Long-term efficacy and tolerability of tacrolimus 0.03% ointment in infants:* a two-year open-label study. Int J Dermatol 2011; 51:104-10. [PMID: 21923693 DOI: 10.1111/j.1365-4632.2011.05015.x] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
BACKGROUND Tacrolimus ointment is effective for treatment of moderate to severe atopic dermatitis (AD) in children aged ≥2 years (Br J Dermatol, 2004; 150: 554). Here, efficacy and tolerability of tacrolimus 0.03% ointment were evaluated in 50 infants aged <2 years at start of treatment. METHODS Infants with AD previously enrolled in a tacrolimus ointment pharmacokinetics trial were eligible for a 24-month open-label phase II study. Tacrolimus 0.03% ointment was applied to affected areas until clearance. In cases of exacerbation or clinical worsening, patients restarted treatment. RESULTS Mean ± SD Eczema Area and Severity Index (EASI) score improved, from 11.2 ± 10.5 baseline to 2.6 ± 4.1 at endpoint (24 months); mean affected body surface area decreased from 25.2 ± 21.1% to 5.1 ± 9.0%, with improvement on all items of the Physicians' Assessment of Individual Signs. The Physicians' Global Evaluation of Clinical Response showed a result of "cleared"/"excellent" for 63.3% of patients; 85.7% of parents/guardians assessed symptoms as "much better." Treatment was well tolerated, with common, nonserious respiratory infections and gastroenteritis the most frequently reported adverse events. The most common application-site events were infections and pruritus. Over 98% of blood samples showed tacrolimus concentrations <1.0 ng/ml; >40% showed concentrations below the lower limit of quantification (0.0250 ng/ml). CONCLUSIONS Over a period of two years, tacrolimus 0.03% ointment was associated with substantial clinical improvement of AD in infants aged <2 years. Treatment tolerability was similar to that seen in older children.
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Munasir Z, Sastroasmoro S, Djauzi S, Waspadji S, Ramelan W, Aminullah A, Widowati R, Harahap AR, Endaryanto A, Wahidiyat I. The role of allergic risk and other factors that affect the occurrence of atopic dermatitis in the first 6 months of life. Asia Pac Allergy 2011; 1:73-9. [PMID: 22053300 PMCID: PMC3206252 DOI: 10.5415/apallergy.2011.1.2.73] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2011] [Accepted: 05/11/2011] [Indexed: 11/18/2022] Open
Abstract
Background Atopic dermatitis (AD) is a chronic inflammation of the skin that often appears in early childhood. The manifestation is related to the tendency towards T helper 2 cytokine immune responses (interleukin (IL)-4, IL-5). Genetic factors are suggested to play important roles in AD, and it can be transmitted to newborns, increasing their risk of developing allergies. Objective To determine the association between cord-blood cytokine levels (IL-5, interferon (IFN) γ), cord-blood total immunoglobulin E (IgE) level, perinatal environmental exposure, and the risks of allergy as well as the development of AD in the first 6 months of life. Methods A 6-month cohort study with a nested case-control within was conducted on newborns in Jakarta from December 2008 until May 2009. After the umbilical cord blood samples were taken and stored, subjects were followed up monthly until 6 months old. The occurrence of AD and lifestyle or environmental exposures were recorded. The allergic risk was determined using a modified pediatric allergy immunology work groups scoring system based on allergic history (allergic rhinitis, asthma, AD) in the family. The levels of IL-5 and IFN-γ were measured using ELISA and total IgE by CAP system FEIA. Multivariate analysis was used to evaluate risk factors. Results This study was conducted on 226 subjects. The incidence of AD was 16.4%; of those, 59% had low risk allergy, 38.5% moderate, and 2% high risk. AD mostly occurred at the age of 1 month (57%). Cord blood samples were examined in 37 subjects with AD and 51 without AD; of those, 25% showed high levels of total IgE (>1.2 IU/µL), and 51% showed normally-distributed high absorbance IL-5 values (≥0.0715, absolute value was undetected). The increased level of IL-5 was directly proportional to IgE. High absorbance IFN-γ values (≥0.0795, absolute value = 18.681 pg/µL) were observed in 52% of subjects. Conclusion The associations between the risk of allergy in the family, cord-blood total IgE, IL-5, IFN levels, and some perinatal environmental exposure with AD in the first 6 months of life have not been established.
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Affiliation(s)
- Zakiudin Munasir
- Department of Child Health, Cipto Mangunkusumo Hospital - Faculty of Medicine, University of Indonesia, Jakarta 10430, Indonesia
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Marenholz I, Bauerfeind A, Esparza-Gordillo J, Kerscher T, Granell R, Nickel R, Lau S, Henderson J, Lee YA. The eczema risk variant on chromosome 11q13 (rs7927894) in the population-based ALSPAC cohort: a novel susceptibility factor for asthma and hay fever. Hum Mol Genet 2011; 20:2443-9. [PMID: 21429916 DOI: 10.1093/hmg/ddr117] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
In a genome-wide association study, a common variant on chromosome 11q13.5 (rs7927894[T]) has been identified as a susceptibility locus for eczema. We aimed to analyze the effect of this risk variant on asthma and hay fever and to determine its impact on the general population level in over 9300 individuals of the prospectively evaluated Avon Longitudinal Study of Parents and Children birth cohort. We demonstrate an association of rs7927894[T] with atopic asthma and with hay fever. The largest effect sizes were found in patients with the combined phenotype atopic asthma plus eczema [odds ratio (OR) = 1.50; 95% confidence interval (CI) 1.20-1.88; P = 3.7 × 10(-4)] and hay fever plus eczema (OR = 1.37; 95% CI 1.15-1.62; P = 3.8 × 10(-4)). We replicated the effects of rs7927894[T] on eczema-associated asthma and hay fever independently in the German GENUFAD (GEnetic studies in NUclear Families with Atopic Dermatitis) study and show that they are significantly larger than the effect observed in eczema. The estimated population attributable risk fractions for eczema, eczema-associated atopic asthma or hay fever were 9.3, 24.9 and 23.5%, respectively. Finally in eczema, we found a synergistic interaction of rs7927894[T] with filaggrin gene (FLG) mutations, which are a major cause of epidermal barrier dysfunction, and replicated the interaction in the German Multicenter Allergy Study birth cohort. The synergistic effect of rs7927894[T] and FLG mutations on eczema risk as well as the association of both variants with eczema-associated atopic asthma and hay fever point to an involvement of rs7927894[T] in a functional pathway that is linked to the barrier defect.
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Affiliation(s)
- Ingo Marenholz
- Pediatric Pneumology and Immunology, Charite´-University Medicine Berlin, 13353 Berlin, Germany
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36
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Jedrychowski W, Perera F, Maugeri U, Mrozek-Budzyn D, Miller RL, Flak E, Mroz E, Jacek R, Spengler JD. Effects of prenatal and perinatal exposure to fine air pollutants and maternal fish consumption on the occurrence of infantile eczema. Int Arch Allergy Immunol 2011; 155:275-81. [PMID: 21293147 DOI: 10.1159/000320376] [Citation(s) in RCA: 62] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2010] [Accepted: 08/10/2010] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND As there is a scarcity of evidence on potential hazards and preventive factors for infantile eczema operating in the prenatal period, the main goal of this study was to assess the role of prenatal exposure to fine particulate matter and environmental tobacco smoke (ETS) in the occurrence of infant eczema jointly with the possible modulating effect of maternal fish consumption. METHODS The study sample consisted of 469 women enrolled during pregnancy, who gave birth to term babies (>36 weeks of gestation). Among all pregnant women recruited, personal measurements of fine particulate matter (PM₂.₅) were performed over 48 h in the second trimester of pregnancy. After delivery, every 3 months in the first year of the newborn's life, a detailed, standardized, face-to-face interview was administered to each mother, in the process of which a trained interviewer recorded any history of infantile eczema and data on potential environmental hazards. The estimated risk of eczema related to higher prenatal exposure to fine particulate matter (PM₂.₅ > 53.0 μg/m³) and postnatal ETS as well as the protective effect of maternal fish intake were adjusted for potential confounders in a multivariable logistic regression model. RESULTS While the separate effects of higher prenatal PM₂.₅ and postnatal ETS exposure were not statistically significant, their joint effect appeared to have a significant influence on the occurrence of infantile eczema [odds ratio 2.39, 95% confidence interval (CI) 1.10-5.18]. With maternal fish intake of more than 205 g/week, the risk of eczema decreased by 43% (odds ratio 0.57, 95% CI 0.35-0.93). The incidence rate ratio (IRR) for eczema symptoms, estimated from the Poisson regression model, was increased with both higher exposure to prenatal PM₂.₅ and postnatal ETS (IRR 1.55, 95% CI 0.99-2.44) and in children of atopic mothers (IRR 1.35, 95% CI 1.04-1.75) but was lower in girls (IRR 0.78, 95% CI 0.61-1.00). The observed preventive effect of fish consumption on the frequency of eczema symptoms was consistent with the results of the logistic analysis (IRR 0.72, 95% CI 0.52-0.99). CONCLUSIONS The findings indicate that higher prenatal exposure to fine particulate matter combined with postnatal exposure to ETS may increase the risk of infant eczema, while maternal fish intake during pregnancy may reduce the risk of infantile eczema.
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Affiliation(s)
- Wieslaw Jedrychowski
- Department of Epidemiology and Preventive Medicine, Jagiellonian University Medical College, Krakow, Poland.
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Matiz C, Tom WL, Eichenfield LF, Pong A, Friedlander SF. Children with atopic dermatitis appear less likely to be infected with community acquired methicillin-resistant Staphylococcus aureus: the San Diego experience. Pediatr Dermatol 2011; 28:6-11. [PMID: 21070347 DOI: 10.1111/j.1525-1470.2010.01293.x] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Given the increasing rate of community-acquired methicillin resistant Staphylococcus aureus skin infections in the population, such infections might be concurrently increasing in patients with atopic dermatitis. This study assessed current and prior rates of community-acquired methicillin resistant Staphylococcus aureus and methicillin-susceptible Staphylococcus aureus skin and soft tissue infections in children with atopic dermatitis compared to the general pediatric population. Other antibiotic sensitivity and resistance patterns, including clindamycin-inducible resistance, were also identified. Retrospective study of all skin and soft tissue isolates were positive for Staphylococcus aureus during two distinct 1-year periods, obtained by the outpatient services and the emergency department at Rady Children's Hospital, the major regional pediatric health center in San Diego, California. Of the Staphylococcus aureus isolates obtained from January to December 2000, none from atopic dermatitis patients were methicillin resistant Staphylococcus aureus, while 4.2% of those obtained from the general outpatient pediatric population showed methicillin resistance. In the period from June 2007 to May 2008, 11 of 78 isolates (14.1%) from children with atopic dermatitis were methicillin resistant Staphylococcus aureus. This was significantly lower than the rate of increase noted in the general pediatric population (658 of 1482, or 44.4%, in 2007/2008, p < 0.05). Clindamycin-inducible resistance was noted in 1.9% of the isolates in the general population; all six tested isolates from atopic patients lacked clindamycin-inducible resistance. In this study, children with atopic dermatitis had a much lower rate of community-acquired methicillin resistant Staphylococcus aureus infection compared to the general outpatient pediatric population. Clindamycin-inducible resistance was very low in both groups.
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Affiliation(s)
- Catalina Matiz
- Division of Pediatric Dermatology, University of California, San Diego and Rady Children's Hospital, San Diego, California 92123, USA
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Ziyab AH, Raza A, Karmaus W, Tongue N, Zhang H, Matthews S, Arshad SH, Roberts G. Trends in eczema in the first 18 years of life: results from the Isle of Wight 1989 birth cohort study. Clin Exp Allergy 2010; 40:1776-84. [DOI: 10.1111/j.1365-2222.2010.03633.x] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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40
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McCollum AD, Paik A, Eichenfield LF. The safety and efficacy of tacrolimus ointment in pediatric patients with atopic dermatitis. Pediatr Dermatol 2010; 27:425-36. [PMID: 20678096 DOI: 10.1111/j.1525-1470.2010.01223.x] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Atopic dermatitis (AD) is the most common skin disease in children, and its prevalence is increasing. It is a chronic disorder, characterized by intermittent flares and phases of remission. Treatment regimens often require multiple therapies. These can vary between patients, and in an individual patient, depending on the state of disease. The traditional treatment for AD flares is topical corticosteroids, which are fast acting and effective for relief of symptoms, but may cause adverse effects, including those resulting from systemic absorption, particularly in children. Topical calcineurin inhibitors (TCIs) are alternative treatments for AD. Tacrolimus ointment, a TCI, is approved for patients aged 2 years and older. Multiple studies have shown that tacrolimus is effective for short-term relief of symptoms in pediatric patients with AD. Long-term trials have demonstrated that the effectiveness of tacrolimus is maintained for up to 4 years in children. Additional studies have revealed that long-term intermittent use of tacrolimus as part of maintenance therapy can prevent AD flares. Tacrolimus has a low potential for systemic accumulation, and analysis of long-term studies indicates that it has a good safety profile. Treatment with tacrolimus, alone or in combination with topical corticosteroids for acute flares, may be a useful option for long-term management of AD in pediatric patients.
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Affiliation(s)
- Alexandra D McCollum
- Division of Pediatric and Adolescent Dermatology, Rady Children's Hospital, San Diego, CA 92123, USA
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Bos JD, Brenninkmeijer EEA, Schram ME, Middelkamp-Hup MA, Spuls PI, Smitt JHS. Atopic eczema or atopiform dermatitis. Exp Dermatol 2010; 19:325-31. [PMID: 20100192 DOI: 10.1111/j.1600-0625.2009.01024.x] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Age period prevalence of atopic eczema (AE), a very common skin disease, has increased during the past decennia. This expansion seems to be ending in wealthy countries, while an increase is observed in developing nations, for which there is no firm explanation. Recent steps in understanding AE are the detection of skin barrier related filaggrin null mutations in approximately 25% of patients and the recognition of IL-31 as a molecule possibly involved in the itch (pruritus). Also interesting are the recognition of thymus and activation-regulated chemokine (TARC) and proliferating-inducing ligand (APRIL), as being associated with AE severity and activity. Immunocentric and corneocentric views on pathogenesis (the inside-outside paradigm) and the diagnostic entity atopiform dermatitis (AFD) are discussed here. We emphasize that diagnosing AE is not simple but challenging. We accentuate that a diagnosis of AE is only possible when there is allergen-specific IgE. Advice as to the need for elimination of allergens and adjustment of lifestyle are only proficient in patients having atopy and true AE, not in those having AFD.
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Affiliation(s)
- Jan D Bos
- Department of Dermatology, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands.
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Abstract
OBJECTIVE To review and compile data from published studies that provide support for the existence of the atopic march. DATA SOURCES Relevant articles and references found via a PubMed search using the following keywords: atopic march, allergic march, atopic dermatitis, eczema, atopic eczema, atopy, rhinitis, wheeze, bronchiolitis, and asthma. STUDY SELECTION All articles were reviewed and the most relevant were selected for inclusion in this review and for the compilation and graphical presentation of disease trends. RESULTS Data on the prevalence of each phenotype of the atopic march confirm the temporal pattern of progression from eczema to allergic rhinitis and asthma. However, the atopic march as it is currently defined, is lacking precision, which affects its usefulness. Early events in the atopic march, such as eczema, may be more useful with more careful refinement of the phenotype into atopic and nonatopic eczema. CONCLUSION Evidence supports that the atopic march is a useful paradigm to describe the clinically observed progression of atopy in certain children. There may be more precise phenotypes of the early stages of the atopic march that may improve its utility in predicting the development of later atopic, comorbid chronic disease.
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Affiliation(s)
- Jennifer Ker
- Division of Allergy, Pulmonary, and Critical Care Medicine, Vanderbilt University Medical Center, Nashville, Tennesse 37232-8300, USA
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Kim BM, Ha M, Park HS, Lee BE, Kim YJ, Hong YC, Kim Y, Chang N, Roh YM, Kim BN, Oh SY, Ha EH. The Mothers and Children's Environmental Health (MOCEH) study. Eur J Epidemiol 2009; 24:573-83. [PMID: 19629723 PMCID: PMC2744774 DOI: 10.1007/s10654-009-9370-7] [Citation(s) in RCA: 97] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2009] [Accepted: 07/07/2009] [Indexed: 12/01/2022]
Abstract
The MOCEH study is a prospective hospital- and community-based cohort study designed to collect information related to environmental exposures (chemical, biological, nutritional, physical, and psychosocial) during pregnancy and childhood and to examine how exposure to environmental pollutants affects growth, development, and disease. The MOCEH network includes one coordinating center, four local centers responsible for recruiting pregnant women, and four evaluation centers (a nutrition center, bio-repository center, neurocognitive development center, and environment assessment center). At the local centers, trained nurses interview the participants to gather information regarding their demographic and socioeconomic characteristics, complications related to the current gestation period, health behaviors and environmental factors. These centers also collect samples of blood, placenta, urine, and breast milk. Environmental hygienists measure each participant's level of exposure to indoor and outdoor pollutants during the pre- and postnatal periods. The participants are followed up through delivery and until the child is 5 years of age. The MOCEH study plans to recruit 1,500 pregnant women between 2006 and 2010 and to perform follow-up studies on their children. We expect this study to provide evidence to support the hypothesis that the gestational environment has an effect on the development of diseases during adulthood. We also expect the study results to enable evaluation of latency and age-specific susceptibility to exposure to hazardous environmental pollutants, evaluation of growth retardation focused on environmental and genetic risk factors, selection of target environmental diseases in children, development of an environmental health index, and establishment of a national policy for improving the health of pregnant women and their children.
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Affiliation(s)
- Byung-Mi Kim
- Department of Preventive Medicine, School of Medicine, Ewha Medical Research Center, Ewha Womans University, 911-1 Mok 6-dong, Yangcheon-Gu, Seoul, Korea
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Wen HJ, Chen PC, Chiang TL, Lin SJ, Chuang YL, Guo YL. Predicting risk for early infantile atopic dermatitis by hereditary and environmental factors. Br J Dermatol 2009; 161:1166-72. [PMID: 19785611 DOI: 10.1111/j.1365-2133.2009.09412.x] [Citation(s) in RCA: 62] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
BACKGROUND Hereditary and environmental factors contribute to the occurrence of atopic dermatitis (AD). However, the interaction of these two factors is not totally understood. OBJECTIVES To evaluate the early risk factors for infantile AD at the age of 6 months and to develop a predictive model for the development of AD. METHODS In 2005, a representative sample of mother and newborn pairs was obtained by multistage, stratified systematic sampling from the Taiwan national birth register. Information on hereditary and environmental risk factors was collected by home interview when babies were 6 months old. Multivariate regression analysis was applied to determine the risk factors for AD in the infants. RESULTS A total of 20 687 pairs completed the study satisfactorily. AD was diagnosed in 7.0% of 6-month-old infants by physicians. Parental asthma, atopic dermatitis and allergic rhinitis, and maternal education levels were risk factors for AD in infants. Among environmental factors, fungus on walls at home and renovation/painting in the house during pregnancy were significantly associated with early infantile AD. Using these factors, the probability of having infantile AD was estimated and grouped into low, high and very high. With five runs of tests in mutually exclusive subsets of this population, the likelihood of AD for 6-month-old infants was consistent in all the groups with the predictive model. The highest predicted probability of AD was 70.1%, among boys with maternal education levels > 12 years, both parents with AD, renovation and painting of the house during pregnancy and fungus on walls at home. The lowest probability was 3.1%, among girls with none of the above factors. CONCLUSIONS This investigation provides a technique for predicting the risk of infantile AD based on hereditary and environmental factors, which could be used for developing a preventive strategy against AD, especially among those children with a family history of atopy.
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Affiliation(s)
- H-J Wen
- Departments of Environmental and Occupational Health, College of Medicine, National Cheng Kung University, Tainan, Taiwan
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Validity of a Telephone Survey for Determining the Prevalence of Atopic Dermatitis and its Seasonal Variation in Spain. ACTAS DERMO-SIFILIOGRAFICAS 2009. [DOI: 10.1016/s1578-2190(09)70067-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
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García-Díez A, Puig L, Ortiz J, Blanco A. Validez de una encuesta telefónica para determinar la prevalencia y la estacionalidad de la dermatitis atópica en España. ACTAS DERMO-SIFILIOGRAFICAS 2009. [DOI: 10.1016/s0001-7310(09)70824-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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Chen W, Mempel M, Schober W, Behrendt H, Ring J. Gender difference, sex hormones, and immediate type hypersensitivity reactions. Allergy 2008; 63:1418-27. [PMID: 18925878 DOI: 10.1111/j.1398-9995.2008.01880.x] [Citation(s) in RCA: 228] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Gender differences in the development and prevalence of human diseases have long been recognized. Immense interest grows in the understanding of the role of sex hormones in the homeostasis of immunity. Asthma predominates in boys before puberty and this gender preference reverses after puberty and in adulthood, when adult women tend to have a more severe disease, often recalcitrant to treatment. Atopic eczema in preschool children shows insignificant gender difference or male preponderance in different studies, with more adult females suffering from atopic eczema. The limited data on the prevalence of immediate hypersensitivity to hymenoptera venom show controversial results. Discrepancy exists regarding the gender difference in food allergy, with females reporting significantly more allergic reactions in questionnaire studies. In general, adverse reactions to nonionic iodinated radiocontrast media are more commonly observed in females. The course of allergic diseases varies unpredictably during pregnancy, whereas hormone replacement therapy in postmenopausal women usually has a favorable influence on the course of asthma. Experiments in rodents confirm an effect of estrogens on mast cell activation and allergic sensitization, while progesterone is shown to suppress histamine release but potentiate IgE induction. Dehydroepiandrosterone may antagonize the production of Th2 cytokines but the effect of testosterone and the other androgens remains less defined. Actual data from human studies are lacking.
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Affiliation(s)
- W Chen
- Department of Dermatology and Allergy, Technische Universität München, Munich, Germany
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Dao H, Kazin RA. Gender differences in skin: a review of the literature. ACTA ACUST UNITED AC 2008; 4:308-28. [PMID: 18215723 DOI: 10.1016/s1550-8579(07)80061-1] [Citation(s) in RCA: 121] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/27/2007] [Indexed: 10/22/2022]
Abstract
BACKGROUND There has been increasing interest in studying gender differences in skin to learn more about disease pathogenesis and to discover more effective treatments. Recent advances have been made in our understanding of these differences in skin histology, physiology, and immunology, and they have implications for diseases such as acne, eczema, alopecia, skin cancer, wound healing, and rheumatologic diseases with skin manifestations. OBJECTIVE This article reviews advances in our understanding of gender differences in skin. METHODS Using the PubMed database, broad searches for topics, with search terms such as gender differences in skin and sex differences in skin, as well as targeted searches for gender differences in specific dermatologic diseases, such as gender differences in melanoma, were performed. Additional articles were identified from cited references. Articles reporting gender differences in the following areas were reviewed: acne, skin cancer, wound healing, immunology, hair/alopecia, histology and skin physiology, disease-specific gender differences, and psychological responses to disease burden. RESULTS A recurring theme encountered in many of the articles reviewed referred to a delicate balance between normal and pathogenic conditions. This theme is highlighted by the complex interplay between estrogens and androgens in men and women, and how changes and adaptations with aging affect the disease process. Sex steroids modulate epidermal and dermal thickness as well as immune system function, and changes in these hormonal levels with aging and/or disease processes alter skin surface pH, quality of wound healing, and propensity to develop autoimmune disease, thereby significantly influencing potential for infection and other disease states. Gender differences in alopecia, acne, and skin cancers also distinguish hormonal interactions as a major target for which more research is needed to translate current findings to clinically significant diagnostic and therapeutic applications. CONCLUSIONS The published findings on gender differences in skin yielded many advances in our understanding of cancer, immunology, psychology, skin histology, and specific dermatologic diseases. These advances will enable us to learn more about disease pathogenesis, with the goal of offering better treatments. Although gender differences can help us to individually tailor clinical management of disease processes, it is important to remember that a patient's sex should not radically alter diagnostic or therapeutic efforts until clinically significant differences between males and females arise from these findings. Because many of the results reviewed did not originate from randomized controlled clinical trials, it is difficult to generalize the data to the general population. However, the pressing need for additional research in these areas becomes exceedingly clear, and there is already a strong foundation on which to base future investigations.
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Affiliation(s)
- Harry Dao
- Johns Hopkins Medical Institutions, Baltimore, Maryland, USA
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Henderson J, Northstone K, Lee SP, Liao H, Zhao Y, Pembrey M, Mukhopadhyay S, Smith GD, Palmer CNA, McLean WHI, Irvine AD. The burden of disease associated with filaggrin mutations: a population-based, longitudinal birth cohort study. J Allergy Clin Immunol 2008; 121:872-7.e9. [PMID: 18325573 DOI: 10.1016/j.jaci.2008.01.026] [Citation(s) in RCA: 244] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2007] [Revised: 01/11/2008] [Accepted: 01/15/2008] [Indexed: 01/29/2023]
Abstract
BACKGROUND Atopic disease is a major health problem. Mutations in the filaggrin gene (FLG) confer major susceptibility to eczema and related asthma. OBJECTIVE We sought to determine the natural history and burden of atopic disease conferred by the 2 most common FLG mutations in a large, population-based birth cohort study. METHODS We analyzed the effect of the most common null alleles (R501X and 2282del4) on several atopic phenotypes in a cohort of approximately 7000 English children born in 1990-1991. RESULTS FLG null alleles associated strongly with eczema; eczema associated with these mutations presents in early life and is more persistent (hazard ratio for eczema resolution for those with FLG mutations to FLG wild type, 0.67; 95% CI, 0.58-0.77; P = 5 x 10(-8)). FLG mutations conferred a population asthma risk of 1.80 (95% CI, 1.34-2.41; P = .00019); asthma risk was especially high in the context of eczema (odds ratio, 3.16; 95% CI, 2.25-4.43; P = 1.4 x 10(-11)). Strong associations were identified with sensitization to grass, house dust mite, and cat dander and sensitization to multiple allergens (odds ratio, 2.12; 95% CI, 1.03-4.37; P = 5.42 x 10(-27)). CONCLUSION FLG mutations are strong genetic determinants of eczema, early wheeze, asthma in the context of eczema, and atopic sensitization. They confer risk of a particular trajectory for eczema, with increased duration of disease and greater risk of asthma and multiple allergic sensitizations. FLG alleles help define the risk profile of children with eczema and help define the "eczema plus early wheeze" and "eczema plus asthma" phenotypes.
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Affiliation(s)
- John Henderson
- Department of Community-based Medicine, University of Bristol, Bristol, United Kingdom
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Sehra S, Tuana FMB, Holbreich M, Mousdicas N, Kaplan MH, Travers JB. Clinical correlations of recent developments in the pathogenesis of atopic dermatitis. An Bras Dermatol 2008. [DOI: 10.1590/s0365-05962008000100009] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Atopic dermatitis is a chronic inflammatory skin disease with a steadily increasing prevalence affecting 10-20 of infants and 1-3 of adults globally. It is often the first clinical manifestation of atopic disease preceding asthma and allergic rhinitis. Probably half of the children with atopic dermatitis develop some other form of atopic disease later in life. The pathogenesis involves a complex interplay of factors including genetic predisposition due to altered immune or skin barrier function, interactions with the environment such as food and allergen exposures, and infectious triggers of inflammation. In this review, we summarize the recent advances in understanding the contribution of different factors in the pathophysiology of atopic dermatitis and how insights provide new therapeutic potential for its treatment.
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Affiliation(s)
- Sarita Sehra
- Center for Pediatric Research, United States of America
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