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Oh SW. Women's Health and Primary Care. Korean J Fam Med 2024; 45:1-2. [PMID: 38272452 PMCID: PMC10822727 DOI: 10.4082/kjfm.45.1e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2024] Open
Affiliation(s)
- Seung-Won Oh
- Department of Family Medicine, Seoul National University College of Medicine, Seoul, Korea
- Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, Korea
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Nasantogtokh E, Ganmaa D, Altantuya S, Amgalan B, Enkhmaa D. Maternal vitamin D intakes during pregnancy and child health outcome. J Steroid Biochem Mol Biol 2023; 235:106411. [PMID: 37871795 DOI: 10.1016/j.jsbmb.2023.106411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Revised: 09/24/2023] [Accepted: 10/20/2023] [Indexed: 10/25/2023]
Abstract
We conducted a follow up of the children in Mongolia whose mothers received one of the three doses of vitamin D (600, 2000, or 4000 IU daily) during pregnancy as part of the randomized, double-blind, clinical trial of vitamin D supplementation to determine their impact on child health to two years. In the parental trial, 119 pregnant women were assigned to 600 IU/day, 121 were assigned 2000 IU/day, and 120 were assigned 4000 IU/day starting at 12-16 weeks' gestation and continuing throughout pregnancy. At baseline, maternal serum 25(OH)D concentrations were similar across arms; 91 % were 50 nmol/l. As expected, there was a dose-response association between the amount of vitamin D consumed (600, 2000, or 4000 IU daily) and maternal 25(OH)D levels at the end of the intervention. Total 311 children of 311 mothers were followed for 2 years to evaluate health outcomes. We determined the child's health outcomes (rickets, respiratory disease [pneumonia, asthma], and diarrhea/vomiting) using a questionnaire and physical examination (3, 6, and 24 months of age). Low levels of mothers' serum 25(OH)D during pregnancy increased the risk of developing rickets, respiratory illness, and other diseases in children during the early childhood period. Rickets was diagnosed in 15.6 % of children of women who received 600 IU of vitamin D during pregnancy, which was higher than in other vitamin D groups. Children in the group whose mothers received low doses of vitamin D (600 IU/day) had a greater probability of developing respiratory diseases compared to the other groups: pneumonia was diagnosed in n = 36 (35.0 %) which was significantly higher than the group receiving vitamin D 4000 IU/day (n = 34 (31.5 %) p = 0.048). In the group whose pregnant mother consumed 600 IU/day of vitamin D, the risk of child pneumonia was ∼ 2 times higher than in the group who consumed 4000 IU/day (OR=1.99, 95 % CI: 1.01-3.90). The incidence of diarrhea and vomiting in children was 12.1 % lower in the 2000 IU/day group and 13.1 % lower in the 4000 IU/day group compared with the 600 IU/day group (p = 0.051). The offspring of pregnant women who regularly used vitamin D at doses above 600 IU/day had lower respiratory disease, rickets, and diarrheal risks at 2 years.
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Affiliation(s)
- Erdenebileg Nasantogtokh
- National Center for Maternal and Child Health, Mongolia; Mongolian National University of Medical Sciences, Mongolia
| | - Davaasambuu Ganmaa
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, United States; Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, United States
| | - Shirchinjav Altantuya
- National Center for Maternal and Child Health, Mongolia; Mongolian National University of Medical Sciences, Mongolia
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Marusca LM, Reddy G, Blaj M, Prathipati R, Rosca O, Bratosin F, Bogdan I, Horhat RM, Tapos GF, Marti DT, Susan M, Pingilati RA, Horhat FG, Adelina M. The Effects of Vitamin D Supplementation on Respiratory Infections in Children under 6 Years Old: A Systematic Review. Diseases 2023; 11:104. [PMID: 37606475 PMCID: PMC10443358 DOI: 10.3390/diseases11030104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Revised: 07/27/2023] [Accepted: 08/03/2023] [Indexed: 08/23/2023] Open
Abstract
Childhood respiratory tract infections (RTIs) pose a significant health burden, especially in children under six years old. The main objective of this systematic review was to assess the effectiveness of vitamin D supplementation in the prevention of RTI in this population while also exploring potential effect modifiers such as age, baseline vitamin D status, and type of respiratory infection. A systematic review of the literature published up to February 2023 was conducted according to PRISMA guidelines, searching PubMed, Web of Science, Cochrane, and Scopus databases. Eight studies met the inclusion criteria, which investigated the association between vitamin D supplementation and respiratory infections in children between zero and five years old. The included studies were conducted between 2012 and 2021, encompassing a total of 2189 children from five randomized trials, two case-control studies, and one prospective cohort study. The relationship between vitamin D supplementation and the prevention of childhood RTI was not consistently observed across all included studies. Pooled results demonstrated varied effects of vitamin D supplementation on respiratory infection incidence, severity, and symptoms. Three studies reported statistically significant associations between low vitamin D levels and respiratory infections (OR = 4.90, OR = 6.97), while one study found that children who received vitamin D supplementation of 800 UI/day for 3 months during the cold season had fewer episodes of respiratory symptoms (RR = 0.55) and recovered more quickly from acute RTI. Lastly, according to one study, vitamin D intake < 80 IU/kg/day was significantly associated with the risk of acquiring pneumonia (OR 7.9) but not bronchiolitis. The remaining five studies found no statistically significant differences in infection rates or severity (p-value > 0.050). The available evidence on the effectiveness of vitamin D supplementation for preventing and treating respiratory infections in children under six years old is limited, with only a few favorable effects being reported. In some cases, a dose of 80 UI/kg/day was found to provide significant protection for acute respiratory infections, although in the major trials the only benefit was a quicker recovery and fewer respiratory symptoms, with no impact on incidence and severity of respiratory infections. Nevertheless, the study protocol, the supplementation dose, and duration of supplementation had significant variations between studies, leading to inconclusive findings.
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Affiliation(s)
- Larisa Mihaela Marusca
- Laboratory Medicine, “Louis Turcanu” Emergency Hospital for Children, Doctor Iosif Nemoianu Street, 300011 Timisoara, Romania;
- Doctoral School, “Victor Babes” University of Medicine and Pharmacy Timisoara, 300041 Timisoara, Romania; (F.B.); (I.B.)
| | - Gowry Reddy
- New York Medical College at St. Mary’s and St. Clare’s Hospital, Denville, NJ 07834, USA;
| | - Mihaela Blaj
- Department of Anesthesiology and Intensive Care, Faculty of Medicine, University of Medicine and Pharmacy “Grigore T. Popa”, University Street, 700115 Iasi, Romania
| | | | - Ovidiu Rosca
- Department of Infectious Diseases, “Victor Babes” University of Medicine and Pharmacy, Eftimie Murgu Square 2, 300041 Timisoara, Romania;
| | - Felix Bratosin
- Doctoral School, “Victor Babes” University of Medicine and Pharmacy Timisoara, 300041 Timisoara, Romania; (F.B.); (I.B.)
- Department of Infectious Diseases, “Victor Babes” University of Medicine and Pharmacy, Eftimie Murgu Square 2, 300041 Timisoara, Romania;
| | - Iulia Bogdan
- Doctoral School, “Victor Babes” University of Medicine and Pharmacy Timisoara, 300041 Timisoara, Romania; (F.B.); (I.B.)
- Department of Infectious Diseases, “Victor Babes” University of Medicine and Pharmacy, Eftimie Murgu Square 2, 300041 Timisoara, Romania;
| | - Razvan Mihai Horhat
- Department of Conservative Dentistry and Endodontics, Faculty of Dental Medicine, “Victor Babes” University of Medicine and Pharmacy Timisoara, Eftimie Murgu Square 2, 300041 Timisoara, Romania;
| | - Gabriela-Florentina Tapos
- Department of Emergency Medicine, Arad County Emergency Clinical Hospital, Calea Victoriei, 310037 Arad, Romania;
| | - Daniela-Teodora Marti
- Department of Biology and Life Sciences, Faculty of Medicine, “Vasile Goldis” Western University of Arad, Revolutiei Square 94, 310025 Arad, Romania;
| | - Monica Susan
- Department of Internal Medicine, Discipline of Medical Semiology I, “Victor Babes” University of Medicine and Pharmacy Timisoara, Eftimie Murgu Square 2, 300041 Timisoara, Romania;
| | - Raja Akshay Pingilati
- Malla Reddy Institute of Medical Sciences, Suraram Main Road 138, Hyderabad 500055, India;
| | - Florin George Horhat
- Multidisciplinary Research Center on Antimicrobial Resistance (MULTI-REZ), Microbiology Department, “Victor Babes” University of Medicine and Pharmacy, 300041 Timisoara, Romania;
| | - Mavrea Adelina
- Department of Internal Medicine I, Cardiology Clinic, “Victor Babes” University of Medicine and Pharmacy Timisoara, Eftimie Murgu Square 2, 300041 Timisoara, Romania;
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Kim SY. Effectiveness of Maternal Vitamin D Supplementation in Preventing Respiratory Tract Infections in Children. Korean J Fam Med 2022; 43:155-156. [PMID: 35610961 PMCID: PMC9136502 DOI: 10.4082/kjfm.43.3e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Affiliation(s)
- Soo Young Kim
- Department of Family Medicine, Kangdong Sacred Heart Hospital, College of Medicine, Hallym University, Seoul, Korea
- Corresponding Author: Soo Young Kim Tel: +82-2-2224-2409, Fax: +82-2-2224-2409, E-mail:
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