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Shen CH, Chen CB, Chiang MH, Kuo CN, Chung WH, Lin YK, Chiu CY. Vitamin D level is inversely related to allergen sensitization for risking atopic dermatitis in early childhood. World Allergy Organ J 2024; 17:100890. [PMID: 38585333 PMCID: PMC10998224 DOI: 10.1016/j.waojou.2024.100890] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Revised: 02/21/2024] [Accepted: 03/04/2024] [Indexed: 04/09/2024] Open
Abstract
Background There are few studies concerning the impact of serum vitamin D status on the risk of allergen sensitization and atopic dermatitis (AD) during early childhood. Method Children with AD and age-matched healthy controls (HC) were prospectively enrolled at age 0.5, 2, and 4 years. Serum 25-hydroxyvitamin D (25[OH]D) level was measured using Elecsys Vitamin D Total assay. The study utilized the ImmunoCAP assay to analyze specific IgE for food and inhalant allergens, along with total serum IgE levels. It explored the connection between vitamin D levels and allergen sensitization, as well as their influence on AD at different ages. Results A total of 222 children including 95 (59 AD and 36 HC), 66 (37 AD and 29 HC), and 61 (32 AD and 29 HC) children were classified at age 0.5, 2, and 4 years, respectively. In children with AD, there was a significantly lower vitamin D level at age 2 and 4, but a significantly higher prevalence of food and mite sensitization at all ages in comparison with HC (P < 0.001). Vitamin D level was found to be inversely related to the prevalence of allergen sensitization at age 4 (P < 0.05). However, vitamin D level appeared to have high importance for allergen sensitization at all ages and AD at age 2 and 4 years. Conclusion Vitamin D deficiency is strongly associated with heightened prevalence of allergen sensitization, potentially increasing the susceptibility to AD in early childhood.
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Affiliation(s)
- Chin-Hsuan Shen
- College of Medicine, Chang Gung University, Taoyuan, Taiwan
- Chang Gung Memorial Hospital Linkou Medical Center, Taoyuan, Taiwan
| | - Chun-Bing Chen
- Department of Dermatology, Drug Hypersensitivity Clinical and Research Center, Chang Gung Memorial Hospital, Linkou, Taipei, Keelung, Taiwan
- Graduate Institute of Clinical Medical Sciences, College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Meng-Han Chiang
- Clinical Metabolomics Core Laboratory, Chang Gung Memorial Hospital at Linkou, Taoyuan, Taiwan
| | - Chieh-Ni Kuo
- Chang Gung Memorial Hospital Linkou Medical Center, Taoyuan, Taiwan
| | - Wen-Hung Chung
- Department of Dermatology, Drug Hypersensitivity Clinical and Research Center, Chang Gung Memorial Hospital, Linkou, Taipei, Keelung, Taiwan
| | - Yin-Ku Lin
- Department of Traditional Chinese Medicine, Chang Gung Memorial Hospital at Keelung, Taiwan
- School of Traditional Chinese Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Chih-Yung Chiu
- Clinical Metabolomics Core Laboratory, Chang Gung Memorial Hospital at Linkou, Taoyuan, Taiwan
- Division of Pediatric Pulmonology, Chang Gung Memorial Hospital at Linkou, College of Medicine, Chang Gung University, Taoyuan, Taiwan
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Zhang Q, Zhang C, Zhang Y, Liu Y, Wang J, Gao Z, Sun J, Li Q, Sun J, Cui X, Wang Y, Fu L. Early-life risk factors for food allergy: Dietary and environmental factors revisited. Compr Rev Food Sci Food Saf 2023; 22:4355-4377. [PMID: 37679957 DOI: 10.1111/1541-4337.13226] [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: 02/01/2023] [Revised: 07/21/2023] [Accepted: 07/27/2023] [Indexed: 09/09/2023]
Abstract
There appears a steep increase in the prevalence of food allergy worldwide in the past few decades. It is believed that, rather than genetic factors, the recently altered dietary and environmental factors are the driving forces behind the rapid increase of this disease. Accumulating evidence has implied that external exposures that occurred in prenatal and postnatal periods could affect the development of oral tolerance in later life. Understanding the potential risk factors for food allergy would greatly benefit the progress of intervention and therapy. In this review, we present updated knowledge on the dietary and environmental risk factors in early life that have been shown to impact the development of food allergy. These predominantly include dietary habits, microbial exposures, allergen exposure routes, environmental pollutants, and so on. The key evidence, conflicts, and potential research topics of each theory are discussed, and associated interventional strategies to prevent the disease development and ameliorate treatment burden are included. Accumulating evidence has supported the causative role of certain dietary and environmental factors in the establishment of oral tolerance in early life, especially the time of introducing allergenic foods, skin barrier function, and microbial exposures. In addition to certain immunomodulatory factors, increasing interest is raised toward modern dietary patterns, where adequately powered studies are required to identify contributions of those modifiable risk factors. This review broadens our understanding of the connections between diet, environment, and early-life immunity, thus benefiting the progress of intervention and therapy of food allergy.
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Affiliation(s)
- Qiaozhi Zhang
- Food Safety Key Laboratory of Zhejiang Province, School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou, China
| | - Chi Zhang
- Food Safety Key Laboratory of Zhejiang Province, School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou, China
| | - Yong Zhang
- Nutrition Department of the First Medical Centre of PLA General Hospital, Beijing, China
| | - Yinghua Liu
- Nutrition Department of the First Medical Centre of PLA General Hospital, Beijing, China
| | - Jin Wang
- Key Laboratory of Environmental Medicine and Engineering, Ministry of Education, and Department of Nutrition and Food Hygiene, School of Public Health, Southeast University, Nanjing, China
- Department of Bioresource Engineering, Faculty of Agricultural and Environmental Sciences, McGill University, Sainte-Anne-de-Bellevue, QC, Canada
| | - Zhongshan Gao
- Allergy Research Center, Zhejiang University, Hangzhou, China
| | - Jinlyu Sun
- Allergy Department, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Qianqian Li
- Food Safety Key Laboratory of Zhejiang Province, School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou, China
| | - Jiachen Sun
- Food Safety Key Laboratory of Zhejiang Province, School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou, China
| | - Xin Cui
- Food Safety Key Laboratory of Zhejiang Province, School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou, China
| | - Yanbo Wang
- Food Safety Key Laboratory of Zhejiang Province, School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou, China
| | - Linglin Fu
- Food Safety Key Laboratory of Zhejiang Province, School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou, China
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Association of food allergy in children with vitamin D insufficiency: a systematic review and meta-analysis. Eur J Pediatr 2023; 182:1533-1554. [PMID: 36790484 DOI: 10.1007/s00431-023-04843-2] [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: 06/16/2022] [Revised: 01/16/2023] [Accepted: 01/23/2023] [Indexed: 02/16/2023]
Abstract
Current literature regarding the association of vitamin D insufficiency and food allergy is contradicting. The purpose of our study was to investigate this association. This is a systematic review and meta-analysis according to the PRISMA statement. PubMeD and Scopus databases were systematically searched for case-control studies investigating the association between pediatric food allergy and vitamin D insufficiency. Our search yielded 806 studies. Ten final studies were considered eligible for qualitative and quantitative analysis. Children with vitamin D insufficiency were found to have 68% more probability to present a food allergy episode (adjusted pooled OR: 1.68, 95% CI [1.25-2.27], p-value: 0.001). In their second year of life they were 4 times more likely to present a food allergy episode (adjusted pooled OR: 4.06, 95% CI [1.93-8.56], p-value: < 0.001), and 56% more probable to develop food sensitization (OR: 1.56, 95% CI [1.15-2.11], p-value: < 0.004). Children in Australia with vitamin D insufficiency were almost 4 times more likely to develop egg sensitization (adjusted OR: 3.79, 95% CI [1.19-12.08], p-value: 0.024). Children with vitamin D insufficiency were almost twice as likely to have peanut sensitization (OR: 1.96, 95% CI [1.08-3.57], p-value: 0.028). Conclusion: Decreased maternal vitamin D levels and infant vitamin D insufficiency appear to increase the incidence of food allergies, particularly in the second year of life. To confirm this association, multicenter longitudinal studies are required. What is Known: • In newborns and young children, vitamin D deficiency and insufficiency are prevalent. • The exact role of vitamin D in atopic diseases remains controversial. What is New: • Decreased maternal vitamin D levels and infant vitamin D insufficiency appear to increase the incidence of food allergies. This association is more evident in the second year of life.
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4
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Alcantara Galvão A, de Andrade Belitardo EMM, de Araújo Sena F, Santos JM, de Oliveira Costa GN, Feitosa CA, Fiaccone RL, Cruz ÁA, Barreto ML, Figueiredo CA, Alcantara-Neves NM. Serum 25-hydroxyvitamin D deficiency is associated with atopy, and sex may be an effect modifier of its association with asthma in teenagers from northeast Brazil. Pediatr Pulmonol 2023; 58:297-305. [PMID: 36263459 DOI: 10.1002/ppul.26200] [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: 11/05/2020] [Revised: 09/03/2022] [Accepted: 10/08/2022] [Indexed: 01/11/2023]
Abstract
OBJECTIVE Sufficient vitamin D (25-hydroxyvitamin D [25(OH)D]) serum levels are associated with decreased asthma symptoms. Our aim was to investigate associations between vitamin D and atopy, asthma, asthma severity, and asthma phenotypes in Brazilian teenagers. METHODS This cross-sectional study involved 942 individuals (11-19 years old) engaged in an asthma cohort. The ISAAC questionnaire was employed to diagnosis asthma and asthma severity. Serum allergen-specific immunoglobulin E (sIgE) was measured by ImmunoCap and serum 25(OH)D was measured by ELISA. We calculated the correlation between sIgE and 25(OH)D. We used multivariate logistic regression analysis to assess associations of interest. RESULTS We found that 25(OH)D deficiency was positively associated with atopy (OR 1.45, confidence interval [CI] 1.05-2.00) and high levels of this vitamin negatively correlated with sIgE to Dermatophagoides pteronyssinus (r = -0.11, p = 0.019). The average 25(OH)D serum level was 27.0 ± 9.5 ng/ml; 366 individuals (38.8%) had a sufficient level. There was no association between 25(OH)D and asthma, asthma severity or asthma phenotypes in the population. However, sex was a possible effect modifier of the association between vitamin D and asthma: insufficiency in asthmatic women (86%) was higher than in asthmatic men (42%), and there was an association between insufficient vitamin D levels and greater asthma risk only in women (OR = 3.06, 95% CI 1.16-8.07). CONCLUSION We have shown that vitamin D deficiency was associated with greater risk of atopy in both sexes and vitamin D insufficiency was associated with asthma only in women. There was no association between vitamin D levels and asthma phenotypes or asthma severity.
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Affiliation(s)
| | | | - Flávia de Araújo Sena
- Instituto de Ciências da Saúde, Universidade Federal da Bahia (UFBA), Salvador, Brazil
| | - Juliana M Santos
- Instituto de Ciências da Saúde, Universidade Federal da Bahia (UFBA), Salvador, Brazil
| | | | - Caroline A Feitosa
- Instituto de Saúde Coletiva, Universidade Federal da Bahia (UFBA), Salvador, Brazil.,Escola Baiana de Medicina e Saúde Pública, Salvador, Brazil
| | - Rosemeire L Fiaccone
- Instituto de Matemática e Estatística, Universidade Federal da Bahia, Salvador, Brazil
| | - Álvaro A Cruz
- ProAR, Faculdade de Medicina, Universidade Federal da Bahia, (UFBA), Salvador, Brazil
| | - Maurício L Barreto
- Instituto de Saúde Coletiva, Universidade Federal da Bahia (UFBA), Salvador, Brazil.,Centro de Integração de Dados e Conhecimentos Para a Saúde (CIDACS), Fiocruz, Brazil
| | - Camila A Figueiredo
- Instituto de Ciências da Saúde, Universidade Federal da Bahia (UFBA), Salvador, Brazil
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Kashinskaya TS, Shakhova NV, Lobanov YF, Kamaltynova EM. Prevalence of Vitamin D Insufficiency/Deficiency and Their Role in Atopic Dermatitis Development and Course in Children. CURRENT PEDIATRICS 2022. [DOI: 10.15690/vsp.v21i4.2435] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Various conclusive evidence on the role of vitamin D in the pathogenesis of atopic dermatitis (AD) has been obtained in recent decades. Many studies have shown that patients with AD have low concentration of 25(OH)D in blood associated with high concentration of allergen specific IgE (according to several reports). The analysis of low 25(OH)D concentration prevalence, association of vitamin D deficiency with AD severity and sensitization to allergens, and association of vitamin D disorders with risk of AD development is presented.
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Rueter K, Siafarikas A, Palmer DJ, Prescott SL. Pre- and Postnatal Vitamin D Status and Allergy Outcomes in Early Childhood. Biomedicines 2022; 10:biomedicines10050933. [PMID: 35625670 PMCID: PMC9139153 DOI: 10.3390/biomedicines10050933] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2022] [Revised: 04/01/2022] [Accepted: 04/06/2022] [Indexed: 11/16/2022] Open
Abstract
The dramatic increase in the prevalence of allergic disease in recent decades reflects environmental and behavioural changes that have altered patterns of early immune development. The very early onset of allergic diseases points to the specific vulnerability of the developing immune system to environmental changes and the development of primary intervention strategies is crucial to address this unparalleled burden. Vitamin D is known to have immunomodulatory functions. While allergic disease is multifactorial, associations with reduced sunlight exposure have led to the hypothesis that suboptimal vitamin D levels during critical early periods may be one possible explanation. Interventions to improve vitamin D status, especially in early life, may be the key to allergic disease prevention.
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Affiliation(s)
- Kristina Rueter
- School of Medicine, The University of Western Australia, 35 Stirling Highway, Crawley 6009, Australia; (A.S.); (D.J.P.); (S.L.P.)
- Department of Immunology, Perth Children’s Hospital, 15 Hospital Avenue, Nedlands 6009, Australia
- inVIVO Planetary Health, Group of the Worldwide Universities Network (WUN), 6010 Park Ave, West New York, NJ 07093, USA
- Correspondence:
| | - Aris Siafarikas
- School of Medicine, The University of Western Australia, 35 Stirling Highway, Crawley 6009, Australia; (A.S.); (D.J.P.); (S.L.P.)
- Telethon Kids Institute, The University of Western Australia, 15 Hospital Avenue, Nedlands 6009, Australia
- Department of Endocrinology, Perth Children’s Hospital, 15 Hospital Avenue, Nedlands 6009, Australia
- Institute for Health Research, University of Notre Dame, Fremantle 6160, Australia
| | - Debra J. Palmer
- School of Medicine, The University of Western Australia, 35 Stirling Highway, Crawley 6009, Australia; (A.S.); (D.J.P.); (S.L.P.)
- Telethon Kids Institute, The University of Western Australia, 15 Hospital Avenue, Nedlands 6009, Australia
| | - Susan L. Prescott
- School of Medicine, The University of Western Australia, 35 Stirling Highway, Crawley 6009, Australia; (A.S.); (D.J.P.); (S.L.P.)
- Department of Immunology, Perth Children’s Hospital, 15 Hospital Avenue, Nedlands 6009, Australia
- inVIVO Planetary Health, Group of the Worldwide Universities Network (WUN), 6010 Park Ave, West New York, NJ 07093, USA
- Telethon Kids Institute, The University of Western Australia, 15 Hospital Avenue, Nedlands 6009, Australia
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7
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Wang NR, Liu SJ, Xiao GY, Zhang H, Huang YJ, Wang L, He CY. Cord blood 25(OH)D3, cord blood total immunoglobulin E levels, and food allergies in infancy: A birth cohort study in Chongqing, China. World Allergy Organ J 2022; 15:100645. [PMID: 35432712 PMCID: PMC8980958 DOI: 10.1016/j.waojou.2022.100645] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Revised: 03/10/2022] [Accepted: 03/14/2022] [Indexed: 11/30/2022] Open
Abstract
Background Methods Results Conclusions
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Affiliation(s)
- Nian-Rong Wang
- Department of Children Healthcare, Chongqing Health Center for Women and Children, 120 Longshan Road, Yubei District, Chongqing, 400021, PR China
- Corresponding author. Department of Children Healthcare, Chongqing Health Center for Women and Children, 120 Longshan Road, Chongqing, 400021, PR China
| | - Shi-Jian Liu
- Department of Clinical Epidemiology and Biostatistics, Children Health Advocacy Institute, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, 1678 Dongfang Road, Pudong New District, Shanghai, 200127, PR China
| | - Gui-Yuan Xiao
- Department of Children Healthcare, Chongqing Health Center for Women and Children, 120 Longshan Road, Yubei District, Chongqing, 400021, PR China
| | - Hua Zhang
- Department of Children Healthcare, Chongqing Health Center for Women and Children, 120 Longshan Road, Yubei District, Chongqing, 400021, PR China
| | - Yu-Jie Huang
- Department of Children Healthcare, Chongqing Health Center for Women and Children, 120 Longshan Road, Yubei District, Chongqing, 400021, PR China
| | - Li Wang
- Department of Children Healthcare, Chongqing Health Center for Women and Children, 120 Longshan Road, Yubei District, Chongqing, 400021, PR China
| | - Chun-Yan He
- Department of Children Healthcare, Chongqing Health Center for Women and Children, 120 Longshan Road, Yubei District, Chongqing, 400021, PR China
- Corresponding author. Department of Children Healthcare, Chongqing Health Center for Women and Children, 120 Longshan Road, Chongqing, 400021, PR China
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Wu JL, Yu L, Guo Y, Chen FY, Feng Z. Second-trimester 25-hydroxyvitamin D status in pregnant women from southern China and risk of macrosomia: a large-scale retrospective cohort study. J Matern Fetal Neonatal Med 2021; 35:8618-8624. [PMID: 34670464 DOI: 10.1080/14767058.2021.1990882] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
PURPOSE The association between maternal vitamin D concentrations and birth weight is controversial. We conducted a large-scale retrospective cohort study in southern China to explore this relationship. METHODS From July 2017 to April 2019, we enrolled 10,586 pregnant women and measured serum vitamin D [via 25-hydroxyvitamin D, 25(OH)D] in the second trimester using electrochemiluminescence immunoassays. The association between macrosomia and 25(OH)D was analyzed using logistic regression and ROC curve. RESULTS Average vitamin D concentration was 61.1 ± 20.2 nmol/L. Additionally, 31.1% participants had 25(OH)D concentrations <50.0 nmol/L, while 68.9% exhibited concentrations ≥50.0 nmol/L. Of the subjects, 3.2% of women delivered macrosomic infants (neonatal birth weight ≥4000 g) and 96.8% did not. The macrosomia group had lower vitamin D concentrations than the non-macrosomia group (59.5 ± 22.3 vs. 61.2 ± 20.1, p < .05). Approximately a third of each group had vitamin D < 50.0 nmol/L (non-macrosomia, 31.3%; macrosomia, 35.9%; p = .055). After adjusting for confounding variables, women with 25(OH)D ≥ 50.0 nmol/L had 24.3% lower macrosomia risk than women with 25(OH)D < 50.0 nmol/L (adjusted OR = 0.757, 95% CI = 0.599-0.956, p = .0193). The predictive accuracy of vitamin D concentrations for evaluating macrosomia risk was 0.667 area under the ROC curve. CONCLUSION Maternal vitamin D levels are negatively correlated with macrosomia. Elevating vitamin D above 50.0 nmol/L may reduce macrosomia incidence.
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Affiliation(s)
- Jie-Ling Wu
- The Second School of Clinical Medicine, Southern Medical University, Guangzhou, China.,Department of Children's Health Care, Guangdong Women and Children Hospital, Guangzhou, China
| | - Li Yu
- Department of Children's Health Care, Guangdong Women and Children Hospital, Guangzhou, China
| | - Yong Guo
- Department of Children's Health Care, Guangdong Women and Children Hospital, Guangzhou, China
| | - Fu-Yi Chen
- Department of Children's Health Care, Guangdong Women and Children Hospital, Guangzhou, China
| | - Zhichun Feng
- The Second School of Clinical Medicine, Southern Medical University, Guangzhou, China.,Faculty of Pediatrics, Chinese PLA General Hospital, Beijing, China.,Beijing Key Laboratory of Pediatric Organ Failure, Beijing, China
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Di T, Chen L. A narrative review of vitamin D and food allergy in infants and children. Transl Pediatr 2021; 10:2614-2620. [PMID: 34765485 PMCID: PMC8578786 DOI: 10.21037/tp-21-396] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Accepted: 09/24/2021] [Indexed: 11/22/2022] Open
Abstract
OBJECTIVE This article summarizes the research progress on the association of vitamin D and food allergy in infants and children. BACKGROUND In recent years, food allergy seriously has affected the quality of life of children and adults. Vitamin D is known to be involved in calcium and phosphorus metabolism, and recent research has demonstrated that vitamin D can also affect the immune regulation of food allergy. METHODS The present study summarizes the research progress on the association of vitamin D and food allergy in infants and children. We searched the PubMed database to identify studies on the association of vitamin D and food allergy published between January 2003 and August 2021. CONCLUSIONS Vitamin D in the body through a number of steps into the final formation of biological effects. The implications of postnatal vitamin D levels for food allergy may be even greater. Vitamin D can prevent the intestinal immune system from being exposed to allergens by maintaining the integrity of the mucosal barrier. Many clinical studies believe that vitamin D supplementation can improve infants' and children's food allergy, however, some show negative results or opposite results. A lot of laboratory studies have confirmed that vitamin D is involved in the immune regulation of food allergy. Evidence indicates there may be a nonlinear relationship between vitamin D and food allergy. Further researches need to be launched.
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Affiliation(s)
- Tianwei Di
- Neonatology Department, The Children's Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - Lihua Chen
- Neonatology Department, The Children's Hospital of Zhejiang University School of Medicine, Hangzhou, China
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10
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Yu L, Ke HJ, Che D, Guo Y, Wu JL. Large retrospective cohort study of the association between maternal 25-hydroxyvitamin D status and birth weight of neonate. J Matern Fetal Neonatal Med 2021; 35:7231-7237. [PMID: 34225543 DOI: 10.1080/14767058.2021.1946781] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
Abstract
BACKGROUND The effect of maternal vitamin D levels on the birth weight of the offspring remains controversial, as the results are inconsistent between different populations. This large retrospective cohort study aimed to assess the relationship between maternal vitamin D levels and birth weight of neonates in southern China. METHODS Serum samples were collected from 10,586 Chinese women at 13-27 weeks of pregnancy, and the 25-hydroxyvitamin D (25(OH)D) level of the participants was assessed. Using the INTERGROWTH-21st standards, the offspring were classified into three groups based on their gestational age and birth weight, which were small for gestational age (SGA), appropriate for gestational age (AGA), and large for gestational age (LGA). The differences in vitamin D levels among the different groups were compared, and their correlation with newborn birth weight was analyzed. RESULTS The average maternal vitamin D concentration was 61.1 nmol/L. The 25(OH)D concentrations were 50-75 nmol/L, 25-50 nmol/L and below 25 nmol/L in 45.5%, 29.5%, and 1.6% of the participants, respectively. No significant differences were observed in the vitamin D levels between the three groups. With the increase in 25(OH)D levels, the risk of SGA and LGA tended to increase and decrease, respectively. AGA was not affected by the 25(OH)D levels. The results of the curve fitting and threshold effect analyses did not support the correlation between vitamin D levels and SGA or LGA. Based on the univariate prediction model and the model adjusted for risk factors, the area under the curve was extremely small. Thus, 25(OH)D levels are not an effective predictor of SGA and LGA. CONCLUSIONS Low maternal vitamin D levels were not associated with SGA or LGA.
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Affiliation(s)
- Li Yu
- Department of Children's Health Care, Guangdong Women and Children Hospital, Guangzhou Medical University, Guangzhou, China
| | - Hai-Jin Ke
- Department of Children's Health Care, Guangdong Women and Children Hospital, Guangzhou Medical University, Guangzhou, China
| | - Di Che
- Department of Children's Health Care, Guangdong Women and Children Hospital, Guangzhou Medical University, Guangzhou, China
| | - Yong Guo
- Department of Children's Health Care, Guangdong Women and Children Hospital, Guangzhou Medical University, Guangzhou, China
| | - Jie-Ling Wu
- Department of Children's Health Care, Guangdong Women and Children Hospital, Guangzhou Medical University, Guangzhou, China
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Yu L, Ke HJ, Che D, Luo SL, Guo Y, Wu JL. Effect of Pandemic-Related Confinement on Vitamin D Status Among Children Aged 0-6 Years in Guangzhou, China: A Cross-Sectional Study. Risk Manag Healthc Policy 2020; 13:2669-2675. [PMID: 33239928 PMCID: PMC7682604 DOI: 10.2147/rmhp.s282495] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Accepted: 11/04/2020] [Indexed: 12/11/2022] Open
Abstract
Purpose Pandemic-related confinement helps to contain the transmission of the novel coronavirus disease (COVID-19) but restricts children’s exposure to sunlight, thereby possibly affecting their 25-hydroxyvitamin D [25(OH)D] levels. This study aimed to examine the effect of COVID-19 measures on 25(OH)D levels in children. Patients and Methods This study included children who underwent health checks between March 1 and June 30, 2020, and those over the equivalent period during 2017–2019 (N = 3600). Children’s 25(OH)D levels and the proportion of children with vitamin D deficiency were compared between different observation periods. Results The mean serum 25(OH)D level was 84 ± 25nmol/L. The overall proportion of children with vitamin D deficiency (25(OH)D level <50 nmol/L) was 4.6%. Home confinement led to an increase in the proportion of children aged 3–6 years with vitamin D deficiency during March 1–June 30, 2020 compared with the same months in previous years, and the most noticeable increase was found in March 2020. In children aged 3–6 years, 25(OH)D levels were lower in 2020 (65 ± 17nmol/L) than during 2017–2019, and the proportion of those with vitamin D deficiency was higher in 2020 (19.0%) than in previous years. Among children aged 0.5–1 and 1–3 years, 25(OH)D levels were higher (97 ± 25 nmol/L, 91 ± 27 nmol/L), while the proportion of children with vitamin D deficiency was lower in 2020 (2.3%, 3.0%) than during 2017–2019. Conclusion The 25(OH)D levels tended to decrease gradually with increasing age. Reduced sunlight exposure during confinement is associated with lower 25(OH)D levels among children aged 3–6 years. Therefore, vitamin D supplementation for children aged >3 years is recommended.
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Affiliation(s)
- Li Yu
- Department of Children's Health Care, Guangdong Women and Children Hospital, Guangzhou Medical University, Guangzhou, Guangdong, People's Republic of China
| | - Hai-Jin Ke
- Department of Children's Health Care, Guangdong Women and Children Hospital, Guangzhou Medical University, Guangzhou, Guangdong, People's Republic of China
| | - Di Che
- Department of Children's Health Care, Guangdong Women and Children Hospital, Guangzhou Medical University, Guangzhou, Guangdong, People's Republic of China
| | - Shao-Lan Luo
- Department of Children's Health Care, Guangdong Women and Children Hospital, Guangzhou Medical University, Guangzhou, Guangdong, People's Republic of China
| | - Yong Guo
- Department of Children's Health Care, Guangdong Women and Children Hospital, Guangzhou Medical University, Guangzhou, Guangdong, People's Republic of China
| | - Jie-Ling Wu
- Department of Children's Health Care, Guangdong Women and Children Hospital, Guangzhou Medical University, Guangzhou, Guangdong, People's Republic of China
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Giannetti A, Bernardini L, Cangemi J, Gallucci M, Masetti R, Ricci G. Role of Vitamin D in Prevention of Food Allergy in Infants. Front Pediatr 2020; 8:447. [PMID: 33014916 PMCID: PMC7461773 DOI: 10.3389/fped.2020.00447] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Accepted: 06/29/2020] [Indexed: 01/04/2023] Open
Abstract
The prevalence of food allergy is increasing over the last decades. The role of vitamin D in the prevention of food allergy has been largely investigated. Its role on the physiology of calcium and bone is known, but calcitriol (active form of the vitamin D) also influences the epithelial cells, T cells, B cells, macrophages, and dendritic cells. Almost all cells of the adaptive immune system express the vitamin D receptor, making them also capable of being vitamin responsive. Specifically considering the potential role of vitamins in food allergy, vitamin D has been shown to affect several mechanisms that promote immunologic tolerance, including the T regulatory cell function and the induction of tolerogenic dendritic cells. The target of our review is to evaluate the role of vitamin D in the prevention of food allergy in children. There are contradictory data on the relationship among the vitamin D deficiency and the developing of food allergy. Some studies associate lower exposure to sunlight to food allergy; on the other hand, further research has found that higher vitamin D levels could increase the likelihood of allergic sensitization and food allergy. Therefore, there is an urgent need for well-planned randomized controlled trials on vitamin D supplementation, with particular regard to the prevention of food allergy. The role of vitamin D beyond bone and calcium metabolism is not fully understood.
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Affiliation(s)
- Arianna Giannetti
- Department of Paediatrics, S. Orsola-Malpighi Hospital, University of Bologna, Bologna, Italy
| | - Luca Bernardini
- Department of Paediatrics, S. Orsola-Malpighi Hospital, University of Bologna, Bologna, Italy
| | - Jessica Cangemi
- Department of Paediatrics, S. Orsola-Malpighi Hospital, University of Bologna, Bologna, Italy
| | - Marcella Gallucci
- Department of Paediatrics, S. Orsola-Malpighi Hospital, University of Bologna, Bologna, Italy
| | - Riccardo Masetti
- Department of Paediatrics, S. Orsola-Malpighi Hospital, University of Bologna, Bologna, Italy
| | - Giampaolo Ricci
- Department of Paediatrics, S. Orsola-Malpighi Hospital, University of Bologna, Bologna, Italy
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