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Paramonova N, Trapina I, Gradauskiene (Sitkauskiene) B, Plavina S, Tamasauskiene L, Bastyte D, Rumba-Rozenfelde I, Tapina S, Stakaitiene I, Ugenskiene R, Shih-Hsin Wu L, Wang JY, Hsieh MH, Chen PC, Sjakste N. Genetic Diversity in Bronchial Asthma Susceptibility: Exploring the Role of Vitamin D Receptor Gene Polymorphisms in Varied Geographic Contexts. Int J Mol Sci 2024; 25:1943. [PMID: 38339221 PMCID: PMC10856277 DOI: 10.3390/ijms25031943] [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: 12/18/2023] [Revised: 01/18/2024] [Accepted: 01/28/2024] [Indexed: 02/12/2024] Open
Abstract
Bronchial asthma (BA) exhibits varying prevalence across global populations, prompting a comprehensive investigation into genetic and environmental determinants. Vitamin D is a potent immunomodulator capable of suppressing inflammatory signals in several cell types involved in the asthmatic response; it exerts effects on the immune system by binding to the nuclear vitamin D receptor (VDR). VDR gene genetic variations are affecting serum vitamin D levels with a possible role in the BA risk. The current study aimed to examine the complex interaction of various factors (genetic background, serum vitamin D levels, and geographic location) to identify differences in the influence of these factors on the susceptibility to asthma between populations at different latitudes. Focusing on Eastern European cohorts from Latvia and Lithuania and comparing them with published data on East Asian populations, we explore the impact of VDR gene polymorphisms on BA susceptibility. Genotyping four key VDR SNPs and assessing their association with 25-hydroxyvitamin D levels, our study unveils significant associations of the studied loci with the risk of asthma-both risk-reducing and increasing effects, differently distributed between Baltic and East Asian populations. The functional effects of in silico VDR gene genetic variations are also identified and discussed.
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Affiliation(s)
- Natalia Paramonova
- Laboratory of Genomics and Bioinformatics, Institute of Biology, University of Latvia, LV-1004 Riga, Latvia; (N.P.); (S.P.); (N.S.)
| | - Ilva Trapina
- Laboratory of Genomics and Bioinformatics, Institute of Biology, University of Latvia, LV-1004 Riga, Latvia; (N.P.); (S.P.); (N.S.)
| | | | - Samanta Plavina
- Laboratory of Genomics and Bioinformatics, Institute of Biology, University of Latvia, LV-1004 Riga, Latvia; (N.P.); (S.P.); (N.S.)
| | - Laura Tamasauskiene
- Department of Immunology and Allergology, Lithuanian University of Health Sciences, LT-50161 Kaunas, Lithuania (L.T.); (D.B.)
| | - Daina Bastyte
- Department of Immunology and Allergology, Lithuanian University of Health Sciences, LT-50161 Kaunas, Lithuania (L.T.); (D.B.)
| | | | - Sandra Tapina
- Faculty of Medicine, University of Latvia, LV-1586 Riga, Latvia; (I.R.-R.); (S.T.)
| | - Ieva Stakaitiene
- Department of Genetics and Molecular Medicine, Lithuanian University of Health Sciences, LT-50161 Kaunas, Lithuania; (I.S.); (R.U.)
| | - Rasa Ugenskiene
- Department of Genetics and Molecular Medicine, Lithuanian University of Health Sciences, LT-50161 Kaunas, Lithuania; (I.S.); (R.U.)
| | - Lawrence Shih-Hsin Wu
- Graduate Institute of Biomedical Sciences, China Medical University, Taichung 406040, Taiwan;
- Research Center of Allergy, Immunology, and Microbiome (AIM), China Medical University Hospital, Taichung 404327, Taiwan; (J.-Y.W.); (M.-H.H.); (P.-C.C.)
| | - Jiu-Yao Wang
- Research Center of Allergy, Immunology, and Microbiome (AIM), China Medical University Hospital, Taichung 404327, Taiwan; (J.-Y.W.); (M.-H.H.); (P.-C.C.)
- Department of Allergy and Immunology, China Medical University Children’s Hospital, Taichung 404327, Taiwan
| | - Miao-Hsi Hsieh
- Research Center of Allergy, Immunology, and Microbiome (AIM), China Medical University Hospital, Taichung 404327, Taiwan; (J.-Y.W.); (M.-H.H.); (P.-C.C.)
| | - Pei-Chi Chen
- Research Center of Allergy, Immunology, and Microbiome (AIM), China Medical University Hospital, Taichung 404327, Taiwan; (J.-Y.W.); (M.-H.H.); (P.-C.C.)
| | - Nikolajs Sjakste
- Laboratory of Genomics and Bioinformatics, Institute of Biology, University of Latvia, LV-1004 Riga, Latvia; (N.P.); (S.P.); (N.S.)
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Weiss ST, Mirzakhani H, Carey VJ, O'Connor GT, Zeiger RS, Bacharier LB, Stokes J, Litonjua AA. Prenatal vitamin D supplementation to prevent childhood asthma: 15-year results from the Vitamin D Antenatal Asthma Reduction Trial (VDAART). J Allergy Clin Immunol 2024; 153:378-388. [PMID: 37852328 DOI: 10.1016/j.jaci.2023.10.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Revised: 09/13/2023] [Accepted: 10/06/2023] [Indexed: 10/20/2023]
Abstract
This article provides an overview of the findings obtained from the Vitamin D Antenatal Asthma Reduction Trial (VDAART) spanning a period of 15 years. The review covers various aspects, including the trial's rationale, study design, and initial intent-to-treat analyses, as well as an explanation of why those analyses did not achieve statistical significance. Additionally, the article delves into the post hoc results obtained from stratified intent-to-treat analyses based on maternal vitamin D baseline levels and genotype-stratified analyses. These results demonstrate a statistically significant reduction in asthma among offspring aged 3 and 6 years when comparing vitamin D supplementation (4400 IU/d) to the standard prenatal multivitamin with vitamin D (400 IU/d). Furthermore, these post hoc analyses found that vitamin D supplementation led to a decrease in total serum IgE levels and improved lung function in children compared to those whose mothers received a placebo alongside the standard prenatal multivitamin with vitamin D. Last, the article concludes with recommendations regarding the optimal dosing of vitamin D for pregnant women to prevent childhood asthma as well as suggestions for future trials in this field.
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Affiliation(s)
- Scott T Weiss
- Department of Medicine, Channing Division of Network Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Mass.
| | - Hooman Mirzakhani
- Department of Medicine, Channing Division of Network Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Mass
| | - Vincent J Carey
- Department of Medicine, Channing Division of Network Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Mass
| | - George T O'Connor
- Department of Medicine, Pulmonary Centre, Boston Medical Centre, Boston University, Boston, Mass
| | - Robert S Zeiger
- Department of Clinical Science, Kaiser Permanente Bernard J. Tyson School of Medicine, Pasadena, Calif
| | - Leonard B Bacharier
- Department of Pediatrics, Division of Pediatric Allergy, Immunology and Pulmonary Medicine, Monroe Carell Jr Children's Hospital at Vanderbilt, Nashville, Tenn
| | - Jeffrey Stokes
- Department of Pediatrics, Division of Pediatric Allergy, Immunology and Pulmonary Medicine, Washington University, St Louis, Mo
| | - Augusto A Litonjua
- Department of Pediatrics Golisano Children's Hospital, Pediatric Pulmonary Division, University of Rochester Medical School, Rochester, NY
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Abdelsalam M, Nagy E, Abdalbary M, Alsayed MA, Ali AAS, Ahmed RM, Alsuliamany ASM, Alyami AH, Althaqafi RMM, Alsaqqa RM, Ali SI, Aljohani B, Alghamdi AA, Alghamdi FA, Alsulaimani AA. Prevalence and Associated Factors of Vitamin D Deficiency in High Altitude Region in Saudi Arabia: Three-Year Retrospective Study. Int J Gen Med 2023; 16:2961-2970. [PMID: 37485454 PMCID: PMC10356959 DOI: 10.2147/ijgm.s418811] [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: 05/17/2023] [Accepted: 07/03/2023] [Indexed: 07/25/2023] Open
Abstract
Background Vitamin D has many functions in the human body, and its deficiency is associated with skeletal and non-skeletal diseases. Vitamin D deficiency (blood level of 25 (OH) vitamin D < 20 ng/mL) has been reported worldwide, including Kingdom of Saudi Arabia (KSA). Its prevalence and associated factors vary according to KSA region. Therefore, this study aimed to explore the prevalence and risk factors of vitamin D deficiency in the Taif region of KSA. Methods This retrospective study included patients who attended outpatient clinics at the Alameen General Hospital from 2019 to 2021. Demographic, clinical, and laboratory data were collected using a hospital software system. Results The study included 2153 patients and vitamin D deficiency was diagnosed in 900 (41.8%) of whom were diagnosed with vitamin D deficiency. It was more common in males (P=0.021), younger age (<0.001), and in patients without comorbidities. There was a positive correlation between 25 (OH) vitamin D levels and blood cholesterol, high-density lipoprotein, calcium, and vitamin B12 levels. In the binary logistic regression analysis, age was the most significant predictor (P<0.001), followed by the absence of thyroid disease (P=0.012) and asthma (P=0.030). Conclusion Vitamin D deficiency is common in the Saudi population despite sunny weather in KSA. It is more prevalent among males, younger individuals, and those without comorbidities such as thyroid diseases and asthma.
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Affiliation(s)
- Mostafa Abdelsalam
- Internal Medicine Department, Alameen General Hospital, Taif, Saudi Arabia
- Mansoura Nephrology and Dialysis Unit, Internal Medicine Department, Faculty of Medicine, Mansoura University, Mansoura, Egypt
| | - Eman Nagy
- Mansoura Nephrology and Dialysis Unit, Internal Medicine Department, Faculty of Medicine, Mansoura University, Mansoura, Egypt
| | - Mohamed Abdalbary
- Mansoura Nephrology and Dialysis Unit, Internal Medicine Department, Faculty of Medicine, Mansoura University, Mansoura, Egypt
| | - Mona Abdellatif Alsayed
- Internal Medicine Department, Alameen General Hospital, Taif, Saudi Arabia
- Department of Pediatrics, Faculty of Medicine, Mansoura University, Mansoura, Egypt
| | - Amr Abouzed Salama Ali
- Mansoura Medical District, Family Medicine Hospitals, Ministry of Health, Mansoura, Egypt
| | | | | | - Ali H Alyami
- Department of Surgery, Ministry of the National Guard – Health Affairs, Jeddah, Saudi Arabia
- Department of Surgery, Abdullah International Medical Research Center, Jeddah, Saudi Arabia
- Department of Orthopedics, King Saud Bin Abdulaziz University for Health Sciences, Jeddah, Saudi Arabia
| | - Raad M M Althaqafi
- Orthopedic Surgery Department, King Abdulaziz Specialist Hospital, Taif, Saudi Arabia
| | | | - Safaa Ibrahim Ali
- General Medicine Faculty, Sechenov University, Moscow City, Russian Federation
| | - Bakar Aljohani
- Neuroradiology, AlHada Military Hospital, Taif, Saudi Arabia
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Tibrewal C, Modi NS, Bajoria PS, Dave PA, Rohit RK, Patel P, Gandhi SK, Gutlapalli SD, Gottlieb P, Nfonoyim J. Therapeutic Potential of Vitamin D in Management of Asthma: A Literature Review. Cureus 2023; 15:e41956. [PMID: 37588324 PMCID: PMC10425698 DOI: 10.7759/cureus.41956] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2023] [Accepted: 07/16/2023] [Indexed: 08/18/2023] Open
Abstract
Asthma, a prevalent chronic respiratory illness, affects a substantial number of individuals worldwide, with an estimated occurrence of 358 million cases. Evidence for the benefits of vitamin D in treating asthma is ambiguous and contradictory. The goal of this review article is to emphasize the value of vitamin D supplementation for people with asthma. Medical subject headings (MeSH) terminology was used to search the PubMed Central, MEDLINE, and PubMed databases for articles on vitamin D supplementation in asthma patients. We selected a comprehensive range of academic writing examples published in English, encompassing various types of texts. The study included a total of 37 papers, of which 18 were randomized controlled trials (RCTs) and five were meta-analyses. The use of a corticosteroid, with or without the inclusion of an adrenergic receptor agonist, improves the disease's symptoms, but it is unable to halt the long-term decline in lung function. Over the past 20 years, vitamin D has developed into a potent immunomodulator, influencing both immunological and structural cells, most notably airway smooth muscle cells. Among adults with low 25-hydroxyvitamin D levels, the administration of vitamin D supplements was found to have positive effects in a reduction in the likelihood of asthma exacerbations requiring systemic corticosteroids. The provision of vitamin D supplements during pregnancy significantly reduces the risk of asthma in babies. Both children and adults with inadequate vitamin D levels who have been given vitamin D supplements have shown evident preventive effects against asthma. Therefore, we conclude there should be a lower threshold for prescribing vitamin D to patients with asthma who are vitamin D deficient.
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Affiliation(s)
- Charu Tibrewal
- Department of Internal Medicine, Civil Hospital Ahmedabad, Ahmedabad, IND
| | | | - Parth S Bajoria
- Department of Internal Medicine, GMERS Medical College Gandhinagar, Gandhinagar, IND
| | | | - Ralph Kingsford Rohit
- Department of Internal Medicine, Dayanand Medical College and Hospital, Ludhiana, IND
| | - Priyansh Patel
- Department of Internal Medicine, California Institute of Behavioral Neurosciences & Psychology, Fairfield, USA
- Department of Internal Medicine, Medical College Baroda, Vadodara, IND
| | - Siddharth Kamal Gandhi
- Department of Internal Medicine, Shri M.P. Shah Government Medical College, Jamnagar, IND
| | - Sai Dheeraj Gutlapalli
- Department of Internal Medicine, Richmond University Medical Center, Staten Island, USA
- Department of Internal Medicine, California Institute of Behavioral Neurosciences & Psychology, Fairfield, USA
| | - Peter Gottlieb
- Department of Pulmonary and Critical Care Medicine, Richmond University Medical Center, Staten Island, USA
| | - Jay Nfonoyim
- Department of Pulmonary and Critical Care Medicine, Richmond University Medical Center, Staten Island, USA
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Salameh L, Mahmood W, Hamoudi R, Almazrouei K, Lochanan M, Seyhoglu S, Mahboub B. The Role of Vitamin D Supplementation on Airway Remodeling in Asthma: A Systematic Review. Nutrients 2023; 15:2477. [PMID: 37299440 PMCID: PMC10255490 DOI: 10.3390/nu15112477] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Revised: 05/14/2023] [Accepted: 05/19/2023] [Indexed: 06/12/2023] Open
Abstract
Asthma is a common chronic respiratory disease that affects millions of people worldwide, and its prevalence continues to increase. Vitamin D has been proposed as a potential environmental factor in asthma pathogenesis, due to its immunomodulatory effects. This systematic review aimed to evaluate the effect of vitamin D supplementation in order to prevent airway remodeling in asthmatic patients. Four electronic databases, namely PubMed, Embase, Clinical trails.gov, and CINAHL, were thoroughly searched to conduct a comprehensive literature review. The International Prospective Register of Systematic Reviews (CRD42023413798) contains a record of the registered protocol. We identified 9447 studies during the initial search; 9 studies (0.1%) met the inclusion criteria and were included in the systematic review. All included studies were experimental studies that investigated the impact of vitamin D supplementation on airway remodeling in asthma. The studies included in this review suggest that vitamin D inhibits airway smooth muscle cell contraction and remodeling, reduces inflammation, regulates collagen synthesis in the airways, and modulates the action of bronchial fibroblasts. However, one study suggests that TGF-β1 can impair vitamin D-induced and constitutive airway epithelial host defense mechanisms. Overall, vitamin D appears to have a potential role in the prevention and management of asthma.
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Affiliation(s)
- Laila Salameh
- Dubai Academic Health Corporation, Rashid Hospital, Dubai P.O. Box 4545, United Arab Emirates;
- Research Institute of Medical and Health Sciences, University of Sharjah, Sharjah P.O. Box 27272, United Arab Emirates; (R.H.); (M.L.); (S.S.); (B.M.)
| | - Walid Mahmood
- Dubai Academic Health Corporation, Rashid Hospital, Dubai P.O. Box 4545, United Arab Emirates;
| | - Rifat Hamoudi
- Research Institute of Medical and Health Sciences, University of Sharjah, Sharjah P.O. Box 27272, United Arab Emirates; (R.H.); (M.L.); (S.S.); (B.M.)
- Division of Surgery and Interventional Science, University College London, London HA4 4LP, UK
| | - Khulood Almazrouei
- Zayed Military Hospital, Abu Dhabi P.O. Box 72763, United Arab Emirates;
| | - Mahesh Lochanan
- Research Institute of Medical and Health Sciences, University of Sharjah, Sharjah P.O. Box 27272, United Arab Emirates; (R.H.); (M.L.); (S.S.); (B.M.)
| | - Suheyl Seyhoglu
- Research Institute of Medical and Health Sciences, University of Sharjah, Sharjah P.O. Box 27272, United Arab Emirates; (R.H.); (M.L.); (S.S.); (B.M.)
| | - Bassam Mahboub
- Research Institute of Medical and Health Sciences, University of Sharjah, Sharjah P.O. Box 27272, United Arab Emirates; (R.H.); (M.L.); (S.S.); (B.M.)
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Changes in Vitamin D Status in Korean Adults during the COVID-19 Pandemic. Nutrients 2022; 14:nu14224863. [PMID: 36432549 PMCID: PMC9696842 DOI: 10.3390/nu14224863] [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: 10/18/2022] [Revised: 11/09/2022] [Accepted: 11/12/2022] [Indexed: 11/19/2022] Open
Abstract
The aim of this study was to investigate changes in 25(OH)D (25-hydroxyvitamin D) levels and in the vitamin D status of Korean adults before and during the coronavirus disease (COVID-19) pandemic. This study compared serum 25(OH)D levels before and after the pandemic in 1483 adults aged 19 years and older who were screened at a university hospital. Subjects were selected only from participants tested in the same season before and after the pandemic. The pre-COVID-19 testing period was from 1 March 2018 to 31 November 2019; the testing period in the COVID-19 era was from 1 June 2020 to 31 November 2021. The mean 25(OH)D level for all participants was 21.4 ± 10.2 ng/mL prior to the outbreak of COVID-19, which increased to 23.6 ± 11.8 ng/mL during the COVID-19 lockdown period (p < 0.001). The increase was particularly dramatic in elderly females (28.8 ± 12.3 ng/mL to 37.7 ± 18.6 ng/mL, p = 0.008). The prevalence of vitamin D deficiency decreased in both males (48.4% to 44.5%, p = 0.005) and females (57.0% to 46.0%, p < 0.001). In conclusion, 25(OH)D levels in Korean adults increased during the COVID-19 era, and the prevalence of vitamin D deficiency decreased accordingly.
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Asthma and Vitamin D Deficiency: Occurrence, Immune Mechanisms, and New Perspectives. J Immunol Res 2022; 2022:6735900. [PMID: 35874901 PMCID: PMC9307373 DOI: 10.1155/2022/6735900] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Revised: 06/06/2022] [Accepted: 06/24/2022] [Indexed: 12/13/2022] Open
Abstract
Asthma, as a chronic inflammatory condition of the airways, has a considerable prevalence among children. Vitamin D might play a role in asthma pathogenesis by affecting the development of the lung, regulating the immune responses, and remodeling of airway smooth muscle (ASM). Study results on the association between the serum level of vitamin D and asthma severity have suggested a converse relationship between lower vitamin D levels and more severe clinical courses. However, they are not consistent in these findings and have shown insignificant correlations, as well. The possible effects of vitamin D on asthma have led researchers to consider this vitamin a potential prophylactic and therapeutic tool for managing children with variant degrees of asthma. Adding vitamin D to the routine corticosteroid therapy of asthmatic children is another field of interest that has shown promising results. In this narrative review study, we aim to elaborate on the existing knowledge on the role of vitamin D in asthma pathogenesis and prognosis, explain the controversies that exist on the effectiveness of treating patients with vitamin D supplements, and make a general conclusion about how vitamin D actually is linked to asthma in children.
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8
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Liu M, Wang J, Sun X. A Meta-Analysis on Vitamin D Supplementation and Asthma Treatment. Front Nutr 2022; 9:860628. [PMID: 35873428 PMCID: PMC9300755 DOI: 10.3389/fnut.2022.860628] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2022] [Accepted: 05/25/2022] [Indexed: 12/23/2022] Open
Abstract
Background Vitamin D, as an immunomodulator, may be related to the therapeutic effect of asthma patients, but the research in this area is still controversial. The aim of this meta-analysis was to analyze the role of vitamin D supplementation in the treatment of asthma patients. Materials and Methods Randomized Controlled Trials (RCTs) of vitamin D supplementation in asthma were searched in PubMed, EMBASE, and the Cochrane library. Primary outcomes were forced expiratory volume in one second (FEV1), asthma exacerbations, Asthma Control Test scores (ACT scores), and fractional exhaled nitric oxide (FENO). Results A total of 10 RCTs were included, including 1,349 patients. Vitamin D supplementation didn't affect the ACT scores (SMD = 0.04, 95% CI = -0.13 to 0.21, P = 0.87), FEV1 (SMD = 0.04, 95% CI = -0.35 to 0.43, P < 0.01) and FENO (SMD = -0.01, 95% CI = -0.22 to 0.20, P = 0.27), but reduced the rate of asthma exacerbations (RR = 0.69, 95% CI = 0.41 to 0.88, P < 0.01), especially in subgroups of children (RR = 0.46, 95% CI = 0.30 to 0.70, P = 0.83) and follow up time less than 6 months (RR = 0.45, 95% CI = 0.32 to 0.63, P = 0.95). Additionally, though there was only one study included in the subgroup, it significantly enhanced FEV1 at the last visit for patients whose FEV1 baseline value was less than 70% (SMD = 0.94, 95% CI = 0.47 to 1.41). Conclusion Vitamin D supplementation can reduce asthma exacerbations, especially in children, and within 6 months of follow up time. In addition, vitamin D has a positive effect on improving FEV1 of patients whose FEV1 baseline value is less than 70%, but more RCTs are still needed to support this conclusion. Systematic Review Registration [https://inplasy.com], identifier [10.37766/inplasy20 22.6.0049].
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Affiliation(s)
- Meiqi Liu
- Department of Respiratory Medicine, Xi’an Children’s Hospital, Xi’an Jiaotong University, Xi’an, China
| | - Jun Wang
- Department and Institute of Infectious Disease, Xi’an Children’s Hospital, Xi’an Jiaotong University, Xi’an, China
| | - Xinrong Sun
- Department of Respiratory Medicine, Xi’an Children’s Hospital, Xi’an Jiaotong University, Xi’an, China
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9
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Saunders RM, Biddle M, Amrani Y, Brightling CE. Stressed out - The role of oxidative stress in airway smooth muscle dysfunction in asthma and COPD. Free Radic Biol Med 2022; 185:97-119. [PMID: 35472411 DOI: 10.1016/j.freeradbiomed.2022.04.011] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Revised: 04/06/2022] [Accepted: 04/19/2022] [Indexed: 12/14/2022]
Abstract
The airway smooth muscle (ASM) surrounding the airways is dysfunctional in both asthma and chronic obstructive pulmonary disease (COPD), exhibiting; increased contraction, increased mass, increased inflammatory mediator release and decreased corticosteroid responsiveness. Due to this dysfunction, ASM is a key contributor to symptoms in patients that remain symptomatic despite optimal provision of currently available treatments. There is a significant body of research investigating the effects of oxidative stress/ROS on ASM behaviour, falling into the following categories; cigarette smoke and associated compounds, air pollutants, aero-allergens, asthma and COPD relevant mediators, and the anti-oxidant Nrf2/HO-1 signalling pathway. However, despite a number of recent reviews addressing the role of oxidative stress/ROS in asthma and COPD, the potential contribution of oxidative stress/ROS-related ASM dysfunction to asthma and COPD pathophysiology has not been comprehensively reviewed. We provide a thorough review of studies that have used primary airway, bronchial or tracheal smooth muscle cells to investigate the role of oxidative stress/ROS in ASM dysfunction and consider how they could contribute to the pathophysiology of asthma and COPD. We summarise the current state of play with regards to clinical trials/development of agents targeting oxidative stress and associated limitations, and the adverse effects of oxidative stress on the efficacy of current therapies, with reference to ASM related studies where appropriate. We also identify limitations in the current knowledge of the role of oxidative stress/ROS in ASM dysfunction and identify areas for future research.
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Affiliation(s)
- Ruth M Saunders
- The Institute for Lung Health, NIHR Leicester Biomedical Research Centre, University of Leicester, Leicester, UK.
| | - Michael Biddle
- The Institute for Lung Health, NIHR Leicester Biomedical Research Centre, University of Leicester, Leicester, UK
| | - Yassine Amrani
- The Institute for Lung Health, NIHR Leicester Biomedical Research Centre, University of Leicester, Leicester, UK
| | - Christopher E Brightling
- The Institute for Lung Health, NIHR Leicester Biomedical Research Centre, University of Leicester, Leicester, UK
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Al-Athari AJH, Aldhalmi AK, Al-Hindy HAAM. Association of High-Sensitivity C-Reactive Protein and Vitamin D with Bronchial Asthma. Open Access Maced J Med Sci 2022. [DOI: 10.3889/oamjms.2022.8795] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
Background: Bronchial asthma (BA) is a common lung illness and a significant health concern affecting over 315 million individuals globally. Asthma involves three main pathologies: airways hyperresponsiveness (AHR), inflammation, and remodeling. VitD has a forceful immunomodulatory effect able of reducing inflammatory responses in many cells intricate in BA. Deficiency of vitD has been linked with much inflammation and global worsening of asthmatic patients. C-reactive protein (CRP) is elevated in primary stages of inflammation of BA and high serum CRP values are observed with impaired pulmonary function and AHR.
For that reason, it is sensible to explore the role of vitD in BA via its associations with CRP. This comparative study was aimed to evaluate the relationship between serum levels of HSCRP and vitD in patients with asthma.
Patients and Methods:
This is a case-control study conducted on 127 asthmatic patients with 113 (sex/aged matching) healthy control. The FeNo results had obtained in private centers, according to the ''guidelines of the American Thoracic Society (ATS)''. All participants had blood analysis of HSCRP and correlated with FeNo measures. VitD Values were classified as sufficient (>30ng/ml), insufficient (20 to 30ng/ml), and deficient (<20ng/mL) based on the preceding reference.
Statistical Package for Social Sciences (SPSS/23-IBM) had used. The chi-squared test had used for univariate investigation, and a t-test had completed detecting variations between the studied groups, treatment groups, and genders. The outcomes had calculated at a 95% CI and had assigned as significant for all variables. The categorization accuracy of HSCRP, vitD, and FeNo measures had been investigated under the ''ROC curves'' for their diagnostic fitness to decide asthma prediction.
Results
Compared to the control group, the mean FeNo levels were significantly higher in asthmatics (p-0.001). Vitamin D mean levels were parallel between the study groups (p>0.05). The mean HSCRP levels were significantly (p-0.03) higher among asthmatics. Around 40% of all participants had lower than normal levels of serum VitD and <10% only revealed deficient levels. There was no effect of history of the treatment of BA on the blood levels of vitD and HSCRP. There was a positive non-significant correlation of vitD with FeNo results (r-0.067, p-0.54) and negative non-significant (r-0.082, p-0.086) correlation of vitD with HSCRP. ROC-curve analysis showed a significant ability (p-0.001) of FeNo to distinguish asthma, with high accuracy, sensitivity and specificity: 0.967, 93.5%, 93.2%, at 95% CI [0.946-1.000], respectively. Likewise, ROC analysis of HSCRP revealed significant ability (p-0.001), but with lower accuracy (0.881), sensitivity (87.1%), and specificity (76.3%) at 95% CI [0.812-0.950] to distinguish asthma patients from healthy subjects. Unlikely, VitD had a non-significant (p-0.085) and lower ability to predict asthma from healthy participants showing AUC (0.612), sensitivity (54.8%), and specificity (68.3%) at 95% CI [0.488 -0.736].
Conclusion
No relation or minor conflicting correlations between serum levels of vitD with asthma severity, treatment history, and inflammation (as indicated by HSCRP). Highly sensitive CRP is correlated with asthma.
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Ganmaa D, Enkhmaa D, Nasantogtokh E, Sukhbaatar S, Tumur-Ochir KE, Manson JE. Vitamin D, respiratory infections, and chronic disease: Review of meta-analyses and randomized clinical trials. J Intern Med 2022; 291:141-164. [PMID: 34537990 DOI: 10.1111/joim.13399] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
BACKGROUND Observational studies have suggested associations of vitamin D deficiency (VDD) with respiratory tract infections, impaired bone health, and myriad chronic diseases. OBJECTIVE To assess potential causal relationships between vitamin D supplementation and a reduced risk of these conditions, a review of the evidence across available meta-analyses of randomized control trials (RCTs) and RCTs was performed. METHOD PubMed, Embase, Cochrane Library, and Web of Science were searched from their inception to March 2021. We included only RCTs and meta-analyses of RCTs focusing on the association between vitamin D and respiratory disease, bone health, cardiovascular disease (CVD), diabetes mellitus, and cancer. RESULTS A total of 107 RCTs and 62 meta-analysis of RCTs were included. Although most RCTs did not support benefits of vitamin D supplementation, suggestive evidence for benefit was found in populations at greater risk of VDD and for acute respiratory infections, fractures in institutionalized older adults, type 2 diabetes among patients with prediabetes, and cancer mortality. In contrast, no compelling evidence for benefit was found for other respiratory conditions, fractures in community-dwelling adults, falls, cancer incidence, or CVD. CONCLUSIONS Current evidence from RCTs and meta-analyses of RCTs is inconsistent regarding the effects of vitamin D supplementation on respiratory infections and chronic diseases. Individuals most likely to benefit are those with baseline VDD or with selected high-risk conditions. Public health initiatives are needed to eliminate VDD globally, and future research will be enhanced by a 'precision prevention' approach to identify those most likely to benefit from vitamin D supplementation.
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Affiliation(s)
- Davaasambuu Ganmaa
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts, USA.,Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA
| | | | | | | | | | - J E Manson
- Division of Preventive Medicine, Department of Medicine, Brigham and Women's Hospital, Boston, Massachusetts, USA.,Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA
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12
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Metabolomics in asthma: A platform for discovery. Mol Aspects Med 2021; 85:100990. [PMID: 34281719 DOI: 10.1016/j.mam.2021.100990] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Revised: 06/21/2021] [Accepted: 07/06/2021] [Indexed: 12/28/2022]
Abstract
Asthma, characterized by airway hyperresponsiveness, inflammation and remodeling, is a chronic airway disease with complex etiology. Severe asthma is characterized by frequent exacerbations and poor therapeutic response to conventional asthma therapy. A clear understanding of cellular and molecular mechanisms of asthma is critical for the discovery of novel targets for optimal therapeutic control of asthma. Metabolomics is emerging as a powerful tool to elucidate novel disease mechanisms in a variety of diseases. In this review, we summarize the current status of knowledge in asthma metabolomics at systemic and cellular levels. The findings demonstrate that various metabolic pathways, related to energy metabolism, macromolecular biosynthesis and redox signaling, are differentially modulated in asthma. Airway smooth muscle cell plays pivotal roles in asthma by contributing to airway hyperreactivity, inflammatory mediator release and remodeling. We posit that metabolomic profiling of airway structural cells, including airway smooth muscle cells, will shed light on molecular mechanisms of asthma and airway hyperresponsiveness and help identify novel therapeutic targets.
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Grant T, Brigham EP, McCormack MC. Childhood Origins of Adult Lung Disease as Opportunities for Prevention. THE JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY-IN PRACTICE 2021; 8:849-858. [PMID: 32147138 DOI: 10.1016/j.jaip.2020.01.015] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Revised: 12/26/2019] [Accepted: 01/16/2020] [Indexed: 02/06/2023]
Abstract
Prenatal and childhood exposures have been shown to impact lung development, lung function trajectory, and incidence and prevalence of respiratory disease. Early life may serve as a window of susceptibility to such exposures, with the potential to influence lifelong respiratory health. Risk factors encountered in early life with potentially durable impact on lung health include prematurity, respiratory viral illness, allergen sensitization and exposure, tobacco use and exposure, indoor and outdoor pollution, diet, and obesity. These exposures vary in the extent to which they are modifiable, and interventions aimed at reducing harmful exposures range from individual-level behavior modification to policy initiatives implemented to promote population health. For many exposures, including tobacco-related exposures, multilevel interventions are needed. Future research is needed to provide insight as to early-life interventions to promote optimal lung growth and prevent development of chronic respiratory disease. Clinicians should play an active role, assisting individual patients in avoiding known detrimental exposures including maternal smoking during pregnancy and initiation of active smoking. Clinicians can be empowered by evidence to support policies promoting reduction of population-level risk factors, such as restriction on electronic cigarette sales and legislation to uphold air quality standards, to encourage attainment of maximal lung function and reduce risk of chronic lung disease.
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Affiliation(s)
- Torie Grant
- Division of Pediatric Allergy/Immunology, Johns Hopkins University School of Medicine, Baltimore, Md
| | - Emily P Brigham
- Division of Pulmonary and Critical Care Medicine, Johns Hopkins University School of Medicine, Baltimore, Md
| | - Meredith C McCormack
- Division of Pulmonary and Critical Care Medicine, Johns Hopkins University School of Medicine, Baltimore, Md.
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14
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Al-Sharif FM, Al-Jiffri OH. Association between Immune System and Sleep Parameters Among Adults with Bronchial Asthma. ELECTRONIC JOURNAL OF GENERAL MEDICINE 2021. [DOI: 10.29333/ejgm/9761] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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15
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Yang F, Sun M, Sun C, Li J, Yang X, Bi C, Wang M, Pu L, Wang J, Wang C, Xie M, Yao Y, Jin L. Associations of C-reactive Protein with 25-hydroxyvitamin D in 24 Specific Diseases: A Cross-sectional Study from NHANES. Sci Rep 2020; 10:5883. [PMID: 32246038 PMCID: PMC7125216 DOI: 10.1038/s41598-020-62754-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2019] [Accepted: 03/16/2020] [Indexed: 11/22/2022] Open
Abstract
Most diseases might be associated with acute or chronic inflammation, and the role of vitamin D in diseases has been extensively explored in recent years. Thus, we examined the associations of one of the best markers for inflammation ― C-reactive protein (CRP) with 25-hydroxyvitamin D [25(OH)D] in 24 specific diseases. We performed cross-sectional analyses among 9,809 subjects aged ≥18 years who participated in the U.S. National Health and Nutrition Examination Survey (NHANES) in 2007~2010. The generalized additive model (GAM) was used to explore the associations of CRP with 25(OH)D in different diseases, adjusted for the age, gender, examination period and race. Distributions of CRP were significantly different (P < 0.05) in gender, examination period and race, and distributions of 25(OH)D were different (P < 0.05) in the examination period and race. Generally, CRP was negatively associated with 25(OH)D for majority diseases. 25(OH)D was negatively associated with CRP generally, and the associations were disease-specific and disease category-specific. In respiratory, gastrointestinal and mental diseases, the associations tended to be approximately linear. While in metabolic diseases, the associations were nonlinear, and the slope of the nonlinear curve decreased with 25(OH)D, especially when 25(OH)D < 30 μg/L.
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Affiliation(s)
- Fang Yang
- Department of Health Management Center, the First Hospital of Jilin University, Changchun, Jilin, 130021, China
| | - Mengzi Sun
- Key Laboratory of Organ Regeneration and Transplantation of Ministry of Education, School of Public Health, Jilin University, Changchun, Jilin, 130021, China
| | - Chong Sun
- Key Laboratory of Organ Regeneration and Transplantation of Ministry of Education, School of Public Health, Jilin University, Changchun, Jilin, 130021, China
| | - Jiagen Li
- Key Laboratory of Organ Regeneration and Transplantation of Ministry of Education, School of Public Health, Jilin University, Changchun, Jilin, 130021, China
| | - Xiuning Yang
- Department of Hepatobiliary Surgery, Affiliated hospital of Beihua University, Jilin, Jilin, 132011, China
| | - Chunli Bi
- Key Laboratory of Organ Regeneration and Transplantation of Ministry of Education, School of Public Health, Jilin University, Changchun, Jilin, 130021, China
| | - Min Wang
- Key Laboratory of Organ Regeneration and Transplantation of Ministry of Education, School of Public Health, Jilin University, Changchun, Jilin, 130021, China
| | - Liyuan Pu
- Key Laboratory of Organ Regeneration and Transplantation of Ministry of Education, School of Public Health, Jilin University, Changchun, Jilin, 130021, China
| | - Jianmeng Wang
- Department of Geriatrics, the First Hospital of Jilin University, Changchun, Jilin, 130021, China
| | - Chunxiao Wang
- Department of Clinical Medicine, School of Clinical Medicine, Changchun, Jilin, 130021, China
| | - Meizhen Xie
- Department of Clinical Medicine, School of Clinical Medicine, Changchun, Jilin, 130021, China
| | - Yan Yao
- Key Laboratory of Organ Regeneration and Transplantation of Ministry of Education, School of Public Health, Jilin University, Changchun, Jilin, 130021, China.
| | - Lina Jin
- Key Laboratory of Organ Regeneration and Transplantation of Ministry of Education, School of Public Health, Jilin University, Changchun, Jilin, 130021, China.
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16
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Shabana MA, Esawy MM, Ismail NA, Said AM. Predictive role of IL-17A/IL-10 ratio in persistent asthmatic patients on vitamin D supplement. Immunobiology 2019; 224:721-727. [PMID: 31570180 DOI: 10.1016/j.imbio.2019.09.005] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2019] [Revised: 08/08/2019] [Accepted: 09/03/2019] [Indexed: 01/05/2023]
Abstract
Asthma is an airway inflammatory disorder. Vitamin (Vit) D is a potent immuno-modulator. It suppresses Interleukin (IL)-17 and induces IL-10. This study aims to investigate the role of IL-17A and IL-10 in predicting asthma control in case of Vit D supplementation. Seventy-nine patients enrolled in this study (42 patients received Vit D supplement and 37 patients did not receive the supplement). The enrolled patients were assessed at the beginning of this study and after 3 months. At the end of the study, there was a significant improvement in pulmonary function parameters in the Vit D supplemented group when compared to both the baseline values and the non-supplemented group. There was a significant decrease in serum IL-17A levels and a significant increase in serum IL-10 levels in comparison with the baseline values (p < 0.0001). The highest correlation of FEV1% improvement percentage was associated with the baseline IL-17A/IL-10 ratio (r = 0.65; p < 0.0001). The IL-17A/IL-10 ratio at a cutoff ≥ 2.66 had a sensitivity of 72.2% and a specificity of 83.3%. The IL-17A/IL-10 ratio had an adjusted odds ratio = 4.66 (p = 0.04). Vit D supplementation reduces the serum IL-17A levels and elevates the serum IL-10 levels in persistent asthmatic patients. So, Vitamin D can be used as an adjunct therapy side by side with the conventional asthma therapy. The IL-17A/IL-10 ratio seems to be a possible predictive biomarker for asthma improvement in patients depending on Vit D supplementation.
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Affiliation(s)
- Marwa A Shabana
- Clinical Pathology Department, Faculty of Medicine, Zagazig University, Egypt.
| | - Marwa M Esawy
- Clinical Pathology Department, Faculty of Medicine, Zagazig University, Egypt
| | - Nagwan A Ismail
- Chest Department, Faculty of Medicine, Zagazig University, Egypt
| | - Ahmed M Said
- Chest Department, Faculty of Medicine, Zagazig University, Egypt
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17
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Dias ASO, Santos ICL, Delphim L, Fernandes G, Endlich LR, Cafasso MOSD, Maranhão AL, da Silva SR, Andrade RM, Agrawal A, Linhares UC, Bento CAM. Serum leptin levels correlate negatively with the capacity of vitamin D to modulate the in vitro cytokines production by CD4 + T cells in asthmatic patients. Clin Immunol 2019; 205:93-105. [PMID: 31173888 DOI: 10.1016/j.clim.2019.06.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2019] [Revised: 05/25/2019] [Accepted: 06/03/2019] [Indexed: 12/14/2022]
Abstract
Both obesity and low vitamin D levels have been associated with allergic asthma (AA) severity. In the present study, severity of AA was associated with obesity but to the in vitro IgE production. In those patients, higher levels of IL-5, IL-6 and IL-17 were quantified in CD4+ T-cell cultures as compared with patients with mild and moderate AA. In addition, the lowest IL-10 levels were detected in the cell cultures from patients with a worse prognosis. Interestingly, the occurrence of AA elevates the plasma levels of leptin, and this adipokine was positively correlated with the release of IL-5, IL-6 and IL-17, but inversely correlated with IL-10 production, by CD4+ T-cells from patients. In AA-derived CD4+ T-cell cultures, 1,25(OH)2D3 was less efficient at inhibiting IL-5, IL-6 and IL-17 production, and up regulating IL-10 release, as those from healthy subjects. Interestingly, the in vitro immunomodulatory effects of vitamin D were inversely correlated with serum leptin levels. In summary, our findings suggested that obesity, probably due to the overproduction of leptin, negatively impacts AA as it favors imbalance between Th2/Th17 and regulatory phenotypes. The deleterious effects of leptin may also be due to its ability to counter-regulate the immunosuppressive effects of vitamin D.
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Affiliation(s)
- Aleida S O Dias
- Department of Microbiology and Parasitology, Federal University of the State of Rio de Janeiro, Brazil; Post-graduate Program in Microbiology, University of the State of Rio de Janeiro, Brazil
| | - Isabelle C L Santos
- Department of Microbiology and Parasitology, Federal University of the State of Rio de Janeiro, Brazil
| | - Letícia Delphim
- Department of Microbiology and Parasitology, Federal University of the State of Rio de Janeiro, Brazil
| | - Gabriel Fernandes
- Department of Microbiology and Parasitology, Federal University of the State of Rio de Janeiro, Brazil
| | - Larissa R Endlich
- Department of Microbiology and Parasitology, Federal University of the State of Rio de Janeiro, Brazil
| | | | - Ana Lúcia Maranhão
- Pulmonology Service, Federal University of the State of Rio de Janeiro, Brazil
| | | | - Regis M Andrade
- Department of General Medicine Department, Federal University of the State of Rio de Janeiro, Brazil
| | - Anshu Agrawal
- Department of Medicine, University of California, Irvine, CA, USA
| | - Ulisses C Linhares
- Department of Morphological Sciences, Federal University of the State of Rio de Janeiro, Brazil
| | - Cleonice A M Bento
- Department of Microbiology and Parasitology, Federal University of the State of Rio de Janeiro, Brazil; Post-graduate Program in Microbiology, University of the State of Rio de Janeiro, Brazil.
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18
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Ramadan A, Sallam SF, Elsheikh MS, Ishak SR, Abdelsayed MG, Salah M, Nazih R, Khairat R, Ibrahim OM. VDR gene expression in asthmatic children patients in relation to vitamin D status and supplementation. GENE REPORTS 2019. [DOI: 10.1016/j.genrep.2019.100387] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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19
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Huang Y, Wang L, Jia XX, Lin XX, Zhang WX. Vitamin D alleviates airway remodeling in asthma by down-regulating the activity of Wnt/β-catenin signaling pathway. Int Immunopharmacol 2019; 68:88-94. [PMID: 30616171 DOI: 10.1016/j.intimp.2018.12.061] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2018] [Revised: 12/25/2018] [Accepted: 12/27/2018] [Indexed: 01/04/2023]
Abstract
Vitamin D exerts a protective role in asthma; however, the molecular mechanisms underlying the vitamin D-attenuated asthma airway remodeling are yet to be elucidated. In this study, Sprague-Dawley (SD) rats were randomly divided into four groups: control, asthma, vitamin D 50 ng/mL, and vitamin D 100 ng/mL. The treatment with 100 ng/mL vitamin D remarkably reduced the thickness of the airway smooth muscle, collagen deposition, and the alpha-smooth muscle actin (α-SMA) mass and airway inflammation. Conversely, the treatment by vitamin D significantly up-regulated the serum levels of 25(OH)2D3 that were decreased in asthma. The putative signaling pathway of vitamin D was based on Wnt5a and β-catenin expression assessed by quantitative real-time reverse transcription polymerase chain reaction (RT-qPCR) and Western blot, which revealed that the administration of vitamin D significantly decreased the activity of Wnt/β-catenin signaling pathway. These results suggested that administration of vitamin D alleviated the airway remodeling in asthma by down-regulating the activity of Wnt/β-catenin signaling pathway.
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Affiliation(s)
- Yue Huang
- Department of Pediatric Allergy and Immunology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325027, China
| | - Lei Wang
- Department of Pediatric Allergy and Immunology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325027, China
| | - Xiao-Xiao Jia
- Department of Pediatric Allergy and Immunology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325027, China
| | - Xi-Xi Lin
- Department of Pharmacy, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325027, China.
| | - Wei-Xi Zhang
- Department of Pediatric Allergy and Immunology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325027, China.
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20
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Rajaram M, Selvarajan S, Neelamegan R, Kamalanathan S, Gunaseelan V, Xavier AS, Das S, Karthikeyan V, Saka V, Chandrasekaran A. Effects of genetic polymorphisms in Vitamin D metabolic pathway on Vitamin D level and asthma control in South Indian patients with bronchial asthma. Lung India 2019; 36:483-491. [PMID: 31670295 PMCID: PMC6852217 DOI: 10.4103/lungindia.lungindia_23_19] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Objectives: The study was designed to evaluate the single-nucleotide polymorphisms (SNPs) of genes involved in Vitamin D actions (rs2228570) and metabolic pathways (rs2248137 and rs10766197) and their associations with serum 25-hydroxy Vitamin D (25(OH)D) level and asthma control in South Indian patients with bronchial asthma. Materials and Methods: One hundred and two patients of South Indian origin with bronchial asthma either naive to inhaled corticosteroids (ICSs) or not receiving ICS for ≥1 month were included and were treated with ICS (beclomethasone 200 μg twice daily) for 8 weeks. One hundred and one unrelated healthy South Indians were used as controls. Pulmonary function test and fractional exhaled nitric oxide were used to assess asthma control. Serum 25(OH)D levels (chemiluminescence immunoassay) and SNPs in Vitamin D pathway (real-time polymerase chain reaction) were assessed. The associations of SNPs and serum 25(OH)D with asthma control was determined using linear regression. All analyses were performed using SPSS (version 19) and “SNPStats.” P < 0.05 was considered as statistically significant. Results: Vitamin D receptor (VDR) polymorphism (rs2228570) was found to be protective against asthma (P = 0.022), while there were no significant associations between the other two SNPs and asthma. Similarly, poor correlation and insignificant associations between the SNPs and serum 25(OH)D levels were observed in both cases and controls. There were also insignificant associations between the SNPs and asthma control. Conclusion: VDR polymorphism (rs2228570) was found to be protective against asthma in South Indians, while other genes involved in the metabolic pathway of Vitamin D did not show associations with asthma.
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Affiliation(s)
- Manju Rajaram
- Department of Pulmonary Medicine, Jawaharlal Institute of Postgraduate Medical Education and Research, Puducherry, India
| | - Sandhiya Selvarajan
- Department of Clinical Pharmacology, Jawaharlal Institute of Postgraduate Medical Education and Research, Puducherry, India
| | - Revathy Neelamegan
- Department of Pharmacology, Jawaharlal Institute of Postgraduate Medical Education and Research, Puducherry, India
| | - Sadishkumar Kamalanathan
- Department of Endocrinology, Jawaharlal Institute of Postgraduate Medical Education and Research, Puducherry, India
| | | | - Alphienes Stanley Xavier
- Department of Clinical Pharmacology, Jawaharlal Institute of Postgraduate Medical Education and Research, Puducherry, India
| | - Saibal Das
- Department of Clinical Pharmacology, Jawaharlal Institute of Postgraduate Medical Education and Research, Puducherry, India
| | - Vignesh Karthikeyan
- Centre for Biotechnology, Cell Signaling Laboratory, Anna University, Chennai, Tamil Nadu, India
| | - Vinodkumar Saka
- Department of Pulmonary Medicine, Jawaharlal Institute of Postgraduate Medical Education and Research, Puducherry, India
| | - Adithan Chandrasekaran
- Department of Clinical Pharmacology, Jawaharlal Institute of Postgraduate Medical Education and Research, Puducherry, India
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21
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Pfeffer PE. Targeting the exposome: does correcting vitamin D deficiency have potential to treat and prevent asthma? Expert Rev Clin Immunol 2018; 14:241-243. [PMID: 29431528 DOI: 10.1080/1744666x.2018.1440207] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Paul E Pfeffer
- a William Harvey Research Institute, Barts and The London School of Medicine and Dentistry , Queen Mary University of London , London , UK.,b Department of Respiratory Medicine , St Bartholomew's Hospital, Barts Health NHS Trust , London , UK
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22
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Ciprandi G, Gallo F. The impact of Vitamin D on asthma control in clinical practice. Med Clin (Barc) 2017; 151:164-165. [PMID: 29292103 DOI: 10.1016/j.medcli.2017.10.042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2017] [Revised: 10/09/2017] [Accepted: 10/19/2017] [Indexed: 10/18/2022]
Affiliation(s)
| | - Fabio Gallo
- Health Science Department, University of Genova, Genoa, Italy
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23
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Colotta F, Jansson B, Bonelli F. Modulation of inflammatory and immune responses by vitamin D. J Autoimmun 2017; 85:78-97. [PMID: 28733125 DOI: 10.1016/j.jaut.2017.07.007] [Citation(s) in RCA: 210] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2017] [Accepted: 07/05/2017] [Indexed: 02/07/2023]
Abstract
Vitamin D (VitD) is a prohormone most noted for the regulation of calcium and phosphate levels in circulation, and thus of bone metabolism. Inflammatory and immune cells not only convert inactive VitD metabolites into calcitriol, the active form of VitD, but also express the nuclear receptor of VitD that modulates differentiation, activation and proliferation of these cells. In vitro, calcitriol upregulates different anti-inflammatory pathways and downregulates molecules that activate immune and inflammatory cells. Administration of VitD has beneficial effects in a number of experimental models of autoimmune disease. Epidemiologic studies have indicated that VitD insufficiency is frequently associated with immune disorders and infectious diseases, exacerbated by increasing evidence of suboptimal VitD status in populations worldwide. To date, however, most interventional studies in human inflammatory and immune diseases with VitD supplementation have proven to be inconclusive. One of the reasons could be that the main VitD metabolite measured in these studies was the 25-hydroxyVitD (25OHD) rather than its active form calcitriol. Although our knowledge of calcitriol as modulator of immune and inflammatory reactions has dramatically increased in the past decades, further in vivo and clinical studies are needed to confirm the potential benefits of VitD in the control of immune and inflammatory conditions.
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Vitamin D and Bronchial Asthma: An Overview of Data From the Past 5 Years. Clin Ther 2017; 39:917-929. [PMID: 28449868 DOI: 10.1016/j.clinthera.2017.04.002] [Citation(s) in RCA: 65] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2017] [Revised: 04/03/2017] [Accepted: 04/04/2017] [Indexed: 11/23/2022]
Abstract
PURPOSE Vitamin D is a potent immunomodulator capable of dampening inflammatory signals in several cell types involved in the asthmatic response. Its deficiency has been associated with increased inflammation, exacerbations, and overall poor outcomes in patients with asthma. Given the increase in the prevalence of asthma over the past few decades, there has been enormous interest in the use of vitamin D supplementation as a potential therapeutic option. Here, we critically reviewed the most recent findings from in vitro studies, animal models, and clinical trials regarding the role of vitamin D in treating bronchial asthma. METHODS Using the key terms [Vitamin D, asthma, clinical trials, in vivo and in vitro studies], the [PubMed, Google Scholar] databases were searched for [clinical trials, original research articles, meta-analyses, and reviews], English-language articles published from [2012] to the present. Articles that were [Articles that did not meet these criteria were excluded] excluded from the analysis. FINDINGS Several studies have found that low serum levels of vitamin D (< 20 ng/mL) are associated with increased exacerbations, increased airway inflammation, decreased lung function, and poor prognosis in asthmatic patients. Results from in vitro and in vivo studies in animals and humans have suggested that supplementation with vitamin D may ameliorate several hallmark features of asthma. However, the findings obtained from clinical trials are controversial and do not unequivocally support a beneficial role of vitamin D in asthma. Largely, interventional studies in children, pregnant women, and adults have primarily found little to no effect of vitamin D supplementation on improved asthma symptoms, onset, or progression of the disease. This could be related to the severity of the disease process and other confounding factors. IMPLICATIONS Despite the conflicting data obtained from clinical trials, vitamin D deficiency may influence the inflammatory response in the airways. Further studies are needed to determine the exact mechanisms by which vitamin D supplementation may induce antiinflammatory effects.
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Affiliation(s)
- Laura Tenero
- Department of Surgical Sciences, Dentistry, Gynecology and Pediatrics, University of Verona, Verona, Italy.
| | - Attilio L Boner
- Department of Surgical Sciences, Dentistry, Gynecology and Pediatrics, University of Verona, Verona, Italy
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