Effects of vitamin D on immune disorders with special regard to asthma, COPD and autoimmune diseases: a short review

2012 ◽  
Vol 6 (6) ◽  
pp. 683-704 ◽  
Author(s):  
Joseph I Székely ◽  
Ágnes Pataki
Keyword(s):  
Vitamin D ◽  
Autoimmune Diseases ◽  
Short Review ◽  
Immune Disorders ◽  
Special Regard

scholarly journals The correlation between vitamin D and autoimmune thyroid function – short review

2021 ◽  
Vol 11 (9) ◽  
pp. 401-408
Author(s):  
Małgorzata Piekarska ◽  
Marcela Maksymowicz ◽  
Radosław Kasperski ◽  
Agata Pikulicka ◽  
Katarzyna Pacek
Keyword(s):  
Vitamin D ◽  
Autoimmune Diseases ◽  
Mineral Metabolism ◽  
Short Review ◽  
Vitamin D Supplementation ◽  
The Body ◽  
Bone Homeostasis ◽  
Autoimmune Thyroid ◽  
Vitamin D Levels ◽  
Effective Prophylaxis

Vitamin D is traditionally associated with the regulation of mineral metabolism and bone homeostasis, and its deficiency is the cause of diseases such as osteoporosis or osteomalacia. However, numerous studies in recent years suggest that thanks to the common expression of the vitamin D receptor (VDR) on the cells of the body and the related additional anti-inflammatory, immunomodulating, antioxidant, anti-fibrotic vitamin D effects, it may play a role in the development and progress of autoimmune diseases and tumors. The collected data suggest that low vitamin D levels correlate with the occurrence of autoimmune diseases of the thyroid gland and that there is a significant correlation between 25(OH)D and anti-TPO or anti-Tg levels. However, these data are inconclusive and further research is needed to confirm this relationship and determine whether lowered vitamin D titer is the cause or rather the consequence of autoimmune thyroid disorders, and whether vitamin D supplementation could prove to be an effective prophylaxis and treatment.

scholarly journals Autoimmunity and Genetic Syndromes: A Focus on Down Syndrome

Genes ◽  
2021 ◽  
Vol 12 (2) ◽  
pp. 268
Author(s):  
Marta Ferrari ◽  
Stefano Stagi
Keyword(s):  
Down Syndrome ◽  
Autoimmune Diseases ◽  
Normal Population ◽  
Underlying Mechanism ◽  
Short Review ◽  
Immune Dysregulation ◽  
Infectious Complications ◽  
Genetic Syndromes ◽  
Genetic Syndrome

Within immune system-related diseases, autoimmunity has always represented a field of great interest, although many aspects remain poorly understood even today. Genetic syndromes associated with immunity disorders are common and represent an interesting model for a better understanding of the underlying mechanism of autoimmunity predisposition. Among these conditions, Down syndrome (DS) certainly deserves special attention as it represents the most common genetic syndrome associated with immune dysregulation, involving both innate and adaptive immunity. Autoimmunity represents a well-known complication of DS: it is estimated that people affected by this disease present a risk four to six times higher than the normal population to develop autoimmune diseases such as celiac disease, type 1 diabetes mellitus, and hypo- or hyperthyroidism. Several factors have been considered as possible etiology, including genetic and epigenetic modifications and immune dysregulation. In times in which the life expectancy of people with DS has been extremely prolonged, thanks to improvements in the diagnosis and treatment of congenital heart disease and infectious complications, knowledge of the mechanisms and proper management of autoimmune diseases within this syndrome has become essential. In this short review, we aim to report the current literature regarding the genetic, immune, and environmental factors that have been proposed as the possible underlying mechanism of autoimmunity in individuals with DS, with the intent to provide insight for a comprehensive understanding of these diseases in genetic syndromes.

scholarly journals Back to the future: a new look at ‘old’ vitamin D

2008 ◽  
Vol 198 (2) ◽  
pp. 261-269 ◽  
Author(s):  
Rene F Chun ◽  
John S Adams ◽  
Martin Hewison
Keyword(s):  
Vitamin D ◽  
Vitamin D Insufficiency ◽  
Target Cells ◽  
Bone Homeostasis ◽  
Immune Disorders ◽  
Factors Associated ◽  
Dihydroxyvitamin D ◽  
High Prevalence ◽  
Fresh Perspective ◽  
Vitamin D Signaling

Our perception of the vitamin D system continues to evolve. Recent studies have re-evaluated the parameters for adequate vitamin D status in humans, revealing a high prevalence of insufficiency in many populations throughout the world. Other reports have highlighted the potential consequences of vitamin D insufficiency beyond established effects on bone homeostasis. Most notably, there is now strong evidence of a role for vitamin D in modulating innate and adaptive immunities, with insufficiency being linked to infectious disease and other immune disorders. To date, signaling pathways for these new responses to vitamin D have been based on established endocrine models for active 1,25-dihydroxyvitamin D, despite present evidence for more localized, intracrine modes of action. In the following review, we provide a fresh perspective on vitamin D signaling in non-classical target cells such as macrophages by highlighting novel factors associated with the transport and action of this pluripotent secosteroid.

scholarly journals Assessment of vitamin D among Sudanese Patients with Hypothyroidism

2021 ◽  
Vol 1 (2) ◽  
pp. 057-061
Author(s):  
Hasna Osman Fadalla Mohamed ◽  
Omer Fadol Edris ◽  
Gad Allah Modawe ◽  
Suhair Abdelrahman Ahmed
Keyword(s):  
Vitamin D ◽  
Autoimmune Diseases ◽  
Vitamin D Deficiency ◽  
Vitamin D Supplementation ◽  
Control Hospital ◽  
Study Population ◽  
Thyroid Profile ◽  
Methods Analytical ◽  
The Relationship

Background: Vitamin D deficiency is a worldwide health issue and its role as an immune modulator has recently been emphasized. Evidence increasingly indicates the important role of vitamin D in reducing the incidence of autoimmune diseases. However, at this time the search for its role in autoimmune diseases and thyroid is not critical. Objectives: The study aimed to assess the relationship between vitamin D deficiency in Sudanese patients with hypothyroidism. Methods: Analytical case control hospital based study, conducted in Fadil Hospital and Police Hospital, Khartoum city, Khartoum state. The study carried out from March 2018 to September 2018. A total of 100 subjects were enrolled in the study. Vitamin D deficiency was set at levels below 20 ng / ml. Thyroid hormones (TSH, T3 and T4) were assessed in all participants using auto analyzer TOSOH AIA 313,while vitamin D was estimated using ELIZA. The data were analyzed using SPSS version (21). Results: The study included 76(76%) females and 24(24%) males, no significance differences between thyroid profile among study population.75 (75%) deficiency of vitamin D and 25(25%) normal vitamin D. vitamin D deficiency was significantly lower in female than male with( p =0.001). Conclusion: The results indicated that patients with hypothyroidism suffer from vitamin D deficiency significantly associated with the degree and severity of hypothyroidism. This encourages the desirability of vitamin D supplementation and recommends the detection of vitamin D deficiency for all hypothyroidism patients.

Vitamin D and autoimmune thyroid diseases (part 1)

2021 ◽  
pp. 6-15
Author(s):  
N. V. Volkova ◽  
A. V. Solntseva
Keyword(s):  
Vitamin D ◽  
Autoimmune Diseases ◽  
Immune Cells ◽  
Therapeutic Potential ◽  
Immunosuppressive Agents ◽  
Thyroid Tissue ◽  
Thyroid Diseases ◽  
Autoimmune Thyroid Diseases ◽  
Autoimmune Thyroid ◽  
Autoimmune Pathology

Autoimmune thyroiditis (AIT) and Graves’ disease (GD) are common autoimmune diseases, and their prevalence assessed as 5 % of general population. Currently, selective immunosuppressive agents for pathogenetic treatment of autoimmune pathology are being developed. Vitamin D with the known anti­inflammatory and immunoregulatory properties, is also of great interest. The first part of the article reviews the roles of various immune cells in the pathogenesis of autoimmune thyroid diseases, which is necessary to reveal the therapeutic potential of calcitriol in these disorders. Classically, AIT was considered to be mediated by T­helpers type 1 (Th1), and GD — by T­helpers type 2 (Th2). This misunderstanding was based on the idea that humoral immunity is controlled by Th2 cytokines, and cellular immunity — by Th1. In the past decades, the role of new subsets of immune cells in the pathogenesis of autoimmune thyroid diseases is being studied, displacing the traditional paradigm of Th1/Th2 dichotomy. It has been established that T­helpers type 17 (Th17) play an important role in the development of various inflammatory and autoimmune diseases, previously classified as Th1­dependent pathologies. The involvement of T­ and B­regulatory lymphocytes in the autoimmune process is also of particular interest. It was found that these cells accumulate in inflamed thyroid tissue in patients with thyroid pathology, but they are unable to suppress the immune response effectively. Further research will help to find out which immune cells can become targets for vitamin D agonists in the complex treatment of autoimmune diseases.

Role of vitamin D in hair loss: A short review

2021 ◽  
Author(s):  
Kriteeka Saini ◽  
Venkataram Mysore
Keyword(s):  
Vitamin D ◽  
Hair Loss ◽  
Short Review

Vitamin D and autoimmune diseases

Life Sciences ◽  
2019 ◽  
Vol 233 ◽  
pp. 116744 ◽  
Author(s):  
Rebeca Illescas-Montes ◽  
Lucía Melguizo-Rodríguez ◽  
Concepción Ruiz ◽  
Víctor J. Costela-Ruiz
Keyword(s):  
Vitamin D ◽  
Autoimmune Diseases

scholarly journals Determinants of Vitamin D Levels in Children and Adolescents with Down Syndrome

2015 ◽  
Vol 2015 ◽  
pp. 1-11 ◽  
Author(s):  
Stefano Stagi ◽  
Elisabetta Lapi ◽  
Silvia Romano ◽  
Sara Bargiacchi ◽  
Alice Brambilla ◽  
...  
Keyword(s):  
Vitamin D ◽  
Down Syndrome ◽  
Autoimmune Diseases ◽  
Hypovitaminosis D ◽  
Outdoor Exposure ◽  
Dietary Intakes ◽  
Vitamin D Levels ◽  
Cholecalciferol Supplementation ◽  
Age And Sex ◽  
D Value

Background. Poor studies have evaluated 25-hydroxycholecalciferol (25(OH)D) levels in Down syndrome (DS).Objective. To assess in DS subjects serum 25(OH)D value, to identify risk factors for vitamin D deficiency, and to evaluate whether a normal 25(OH)D value can be restored with a 400 I.U. daily supplement of cholecalciferol in respect to controls.Methods. We have longitudinally evaluated 31 DS patients (aged 4.5–18.9 years old) and 99 age- and sex-matched healthy controls. In these subjects, we analysed calcium, phosphate, parathyroid hormone (PTH), 25(OH)D concentrations, and calcium and 25(OH)D dietary intakes, and we quantified outdoor exposure. After 12.3 months (range 8.1–14.7 months) of 25(OH)D supplementation, we reevaluated these subjects.Results. DS subjects showed reduced 25(OH)D levels compared to controls (P<0.0001), in particular DS subjects with obesity (P<0.05) and autoimmune diseases history (P<0.005). PTH levels were significantly higher in DS subjects than controls (P<0.0001). After cholecalciferol supplementation, 25(OH)D levels were significantly ameliorated (P<0.05), even if reduced compared to controls (P<0.0001), in particular in DS subjects with obesity (P<0.05) and autoimmune diseases (P<0.001).Conclusions. Hypovitaminosis D is very frequent in DS subjects, in particular in presence of obesity and autoimmune diseases. In these subjects, there could be a need for higher cholecalciferol supplementation.

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