scholarly journals Relationship between vitamin D deficiency and atopy in children

2018 ◽  
Vol 5 (5) ◽  
pp. 1705
Author(s):  
Kulthum Al Mahdi ◽  
Mariyah Albrahim ◽  
Fatimah Alkhars ◽  
Ola Alkhalifah ◽  
Rabab Alaithan ◽  
...  
Keyword(s):  
Vitamin D ◽  
Immune System ◽  
Vitamin D Deficiency ◽  
Immunoglobulin E ◽  
Serum Levels ◽  
Inhibitory Effect ◽  
Vitamin D Receptors ◽  
System Integrity ◽  
Randomized Controlled Studies ◽  
Vitamin D Levels

Along with its role in regulation of calcium metabolism and bone health, vitamin D is essential for immune system integrity. Vitamin D is an essential immunomodulatory vitamin that interact with the immune system in response to foreign antigens. This interaction is mediated by the vitamin D receptors (VDR) expressed on the surface of various immune cells. Vitamin D has an inhibitory effect on synthesis and release of immunoglobulin E and thus is closely related to atopic disorders. Vitamin D deficiency is a risk factor for bronchial asthma, and it increased asthma-related exacerbation. Low vitamin D levels are encountered in patients with allergic rhinitis and increase the severity of the disease. Other allergic conditions such as atopic dermatitis, contact dermatitis, and food allergy were reported to be significantly correlated with vitamin D serum levels. Despite the established correlation between vitamin D and atopic disorders, double-blinded randomized controlled studies are still lacking to approve this relationship and to provide clear guidelines for the recommended supplementary doses of vitamin D to prevent or treat these conditions. This article aims to review the relationship between vitamin D deficiency and atopy in children.

scholarly journals Are Vitamin D Levels Associated With Risk of Deep Neck Infection?

2019 ◽  
pp. 014556131986549
Author(s):  
Mustafa Sıtkı Gozeler ◽  
Muhammed Sedat Sakat ◽  
Korhan Kilic ◽  
Abdulkadir Sahin ◽  
Arzu Tatar ◽  
...  
Keyword(s):  
Vitamin D ◽  
Immune System ◽  
Vitamin D Deficiency ◽  
Serum Levels ◽  
Control Group ◽  
Deep Neck Infection ◽  
Neck Infection ◽  
Vitamin D Receptors ◽  
Vitamin D Levels ◽  
25 Hydroxy Vitamin D

Deep neck infection (DNI) refers to infections in spaces created by superficial and deep cervical fascia around the muscles and organs in the neck. Vitamin D is highly important for an effective immune system. Vitamin D receptors (VDR) have been identified in immune system cells, and particularly in T and B lymphocytes, macrophages, and dendritic cells. Vitamin D deficiency is thought to result in impaired immune response, decreased leukocyte chemotaxis, and an increased disposition to infection. The purpose of this study was to investigate whether vitamin D deficiency is an underlying occult factor in the development of DNI. Sixty-five patients aged 6 to 90, diagnosed with DNI, and 70 healthy age- and sex-compatible cases were included in the study. Serum levels of calcium, phosphorus, parathyroid hormone, and 25-hydroxy vitamin D (25(OH)D) were determined in each case. 25-hydroxy vitamin D levels above 20 ng/mL were regarded as normal, 12 to 20 ng/mL as insufficient, 5 to 12 ng/mL as deficient, and less than 5 ng/mL as severely deficient. Mean serum 25(OH)D levels were 10.4 (6.2) ng/mL in the patient group and 15.5 (6.4) ng/mL in the control group ( P < .01). This difference was statistically significant ( P < .01). Vitamin D was within normal limits in 9.2% (n = 6) of cases in the study group, insufficient in 29.2% (n = 19), deficient in 35.3% (n = 23), and severely deficient in 26.2% (n = 17). The equivalent values in the control group were 21.4% (n = 15), 48.5% (n = 34), 30% (n = 21), and 0% (n = 0). Serum 25(OH)D levels were significantly lower in patients with DNI compared to the healthy cases; 25(OH)D levels may be a factor in the development of DNI.

scholarly journals To Supplement or not to Supplement? The Rationale of Vitamin D Supplementation in Systemic Lupus Erythematosus

2018 ◽  
Vol 12 (1) ◽  
pp. 226-247 ◽  
Author(s):  
Alessandra Nerviani ◽  
Daniele Mauro ◽  
Michele Gilio ◽  
Rosa Daniela Grembiale ◽  
Myles J. Lewis
Keyword(s):  
Systemic Lupus Erythematosus ◽  
Vitamin D ◽  
Vitamin D Deficiency ◽  
Lupus Erythematosus ◽  
Clinical Manifestations ◽  
Vitamin D Supplementation ◽  
Current Evidence ◽  
Systemic Lupus ◽  
Vitamin D Receptors ◽  
Vitamin D Levels

Background: Systemic Lupus Erythematosus (SLE) is a systemic autoimmune disease characterised by abnormal activation of the immune system, chronic inflammation and organ damage. Lupus patients are more prone to be vitamin D deficient. However, current evidence is not conclusive with regards to the role played by vitamin D in SLE development, progression, and clinical manifestations. Objective: Here, we will summarise the current knowledge about vitamin D deficiency prevalence, risk factors, molecular effects, and potential pathogenic role in SLE. We will focus on the link between vitamin D deficiency and lupus clinical manifestations, and on the clinical trials assessing the effects of vitamin D supplementation in SLE. Method: A detailed literature search was performed exploiting the available databases, using “vitamin D and lupus/SLE” as keywords. The relevant interventional trials published over the last decade have been considered and the results are reported here. Conclusion: Several immune cells express vitamin D receptors. Thus, an immunomodulatory role for vitamin D in lupus is plausible. Numerous observational studies have investigated the relationship between vitamin D levels and clinical/serological manifestations of SLE with contrasting results. Negative correlations between vitamin D levels and disease activity, fatigue, renal and cardiovascular disease, and anti-dsDNA titres have been described but not conclusively accepted. In experimental models of lupus, vitamin D supplementation can improve the disease. Interventional trials have assessed the potential therapeutic value of vitamin D in SLE, but further larger studies are needed.

scholarly journals Relation of serum 25(OH) D with variables of thyroid and lipid profile in perimenopausal women

2017 ◽  
Vol 6 (3) ◽  
pp. 1087
Author(s):  
Poonam Rani ◽  
Seema Gupta ◽  
Gaurav Gupta
Keyword(s):  
Cardiovascular Disease ◽  
Vitamin D ◽  
Lipid Profile ◽  
Vitamin D Deficiency ◽  
Serum Levels ◽  
The Body ◽  
P Value ◽  
Thyroid Disorder ◽  
Vitamin D Levels ◽  
Perimenopausal Women

Background: Deficiency of vitamin D is quite prevalent among elderly population or postmenopausal women worldwide and may affect various function of the body. The status of its deficiency with their relation with other variables are not well explored in perimenopausal women.Methods: 100 perimenopausal women from the department of obstetrics and gynaecology were selected without having known risk of thyroid disorder and cardiovascular disease. The age group criteria for these women were 40 to 50 years. Thyroid profile including TSH, T3, and T4 were estimated by using enzyme linked immunesorbent assay. Serum levels of 25(OH) D3 was estimated by using spectrophotometric method. Lipid profile including TC, TG and HDL-C were estimated CHOD-POD method, GPO-PAP method, and CHOD-POD/Phosphotungustate method. LDL-C was calculated by friedewald formula.Results: There 58 women were presented with insufficient amount of vitamin D. They were characterised with increased BMI, elevated thyrotropin alongwith lower concentrations of T3 and T4. Increased levels of TC, TG and LDL-cholesterol alongwith lower concentration of HDL-C were also observed in women with vitamin d deficiency. Women having vitamin D deficiency were presented with overweight (OR-18.0, p-value=<0.001) and dyslipidemia (OR-12.13, p-value≤0.001). Vitamin D was negatively correlated with variable i.e. BMI, TSH, TC, TG and LDL-C. This negative association was significant (<0.001) while HDL-C and T4 were positively correlated with vitamin D levels in this study population.Conclusions: Vitamin D deficiency frequently occurs in middle aged perimenopausal women. Negative correlation of it with BMI, TSH and lipid variables may suggest the development of cardiovascular disease and hypothyroidism in coming years. Vitamin D supplements or vitamin D containing diet and regular exposure to sun is highly recommended to perimenopausal women.

25-OH-Vitamin-D Deficiency Impairs Rituximab-Mediated Cellular Cytotoxicity and Is Associated With An Inferior Outcome Of Elderly DLBCL Patients Treated With Rituximab

Blood ◽  
2013 ◽  
Vol 122 (21) ◽  
pp. 1819-1819 ◽  
Author(s):  
Joerg Thomas Bittenbring ◽  
Bettina Altmann ◽  
Frank Neumann ◽  
Marina Achenbach ◽  
Joerg Reichrath ◽  
...  
Keyword(s):  
Vitamin D ◽  
Overall Survival ◽  
Vitamin D Deficiency ◽  
Multivariable Analysis ◽  
Serum Levels ◽  
Event Free Survival ◽  
Free Survival ◽  
Vitamin D Levels ◽  
25 Oh Vitamin D ◽  
The Impact

Abstract Background To investigate the impact and underlying mechanisms of vitamin-D-deficiency (VDD) on outcome of elderly (61 to 80 year-old) DLBCL patients. Methods Pretreatment 25-OH-vitamin-D serum levels from 359 patients treated in the prospective multicenter RICOVER-60 trial with 6 or 8 cycles of CHOP-14 with and without 8 cycles rituximab and 63 patients in the RICOVER-noRT study treated with 6xCHOP-14 + 8xR were determined determined by LIASION®, a commercially available chemoluminescent immunoassay. Results RICOVER-60 patients with VDD (defined as serum levels ≤8 ng/m l) and treated with rituximab had a 3-year event-free survival of 59% compared to 79% in patients with >8 ng/ml; 3-year overall survival was 70% and 82%, respectively. These differences were significant in a multivariable analysis adjusting for IPI risk factors with a hazard ratio of 2.1 [p=0.008] for event-free survival and 1.9 [p=0.040] for overall survival. In patients treated without rituximab 3-year EFS was not significantly different in patients with vitamin-D levels ≤8 and >8 ng/ml (HR 1.2; p=0.388). These results were confirmed in an independent validation set of 63 patients treated within the RICOVER-noRT study. Rituximab-mediated cellular toxicity (RMCC) against the CD20+ cell line Daudi as determined by LDH release assay increased significantly (p<0.005) in 5/5 vitamin-D-deficient individuals after vitamin-D substitution and normalization of their vitamin-D levels. Conclusions VDD is a significant risk factor for elderly DLBCL patients treated with rituximab. Our results show that VDD impairs RMCC and that RMCC can be improved by vitamin-D substitution. This together with the differential effect of VDD in patients treated with and without rituximab suggests that vitamin-D substitution might result in a better outcome of these patients when treated with CHOP plus rituximab. Supported by a grant from Deutsche Krebshilfe. Disclosures: No relevant conflicts of interest to declare.

Association of 25-OH vitamin D deficiency with worse outcome for elderly patients with aggressive B-cell lymphomas treated with CHOP plus rituximab (R): An analysis of the RICOVER-60 trial of the German High-Grade Non-Hodgkin Lymphoma Study Group (DSHNHL).

2013 ◽  
Vol 31 (15_suppl) ◽  
pp. 8569-8569
Author(s):  
Joerg Thomas Bittenbring ◽  
Marina Achenbach ◽  
Bettina Altmann ◽  
Marita Ziepert ◽  
Joerg Reichrath ◽  
...  
Keyword(s):  
Vitamin D ◽  
Elderly Patients ◽  
B Cell ◽  
Vitamin D Deficiency ◽  
Prospective Trial ◽  
Multivariable Analysis ◽  
Serum Levels ◽  
B Cell Lymphomas ◽  
Vitamin D Levels ◽  
25 Oh Vitamin D

8569 Background: Vitamin D deficiency was shown to be is associated with a worse outcome in patients with non-Hodgkin's lymphoma (Drake et al., 2010) To study whether this observation could be confirmed in patients with aggressive B-cell lymphomas treated uniformly within a prospective trial, we analyzed 25-OH vitamin D serum levels in patients treated within the RICOVER-60 trial of the DSHNHL. Methods: 25-OH Vitamin D serum levels were determined with a commercial chemoluminescence immunoassay in the serum from elderly patients of the RICOVER-60 trial which compared 6 or 8 cycles of CHOP, both with and without rituximab. Results: 193 of 359 pts (53.8%) had vitamin D deficiency (<10 ng/ml) and 165/359 patients (46.0%) had vitamin D insufficiency (10-30 ng/ml) according to current definitions. When treated with R-CHOP, patients with vitamin D levels ≤8 ng/ml had a 3-year EFS of 59% compared to 79% of patients with vitamin D serum levels >8 ng/ml; the respective figures for 3-year overall survival were 70% and 82%, respectively. In R-CHOP pts these differences were significant in a multivariable analysis adjusting for IPI risk factors with a hazard ratio (HR) of 2.1 (p=0.008) for EFS and a HR of 1.9 (p=0.040) for OS. In pts treated without R effects of vitamin D deficiency were significant only for OS (HR 1.8; p=0.025), but not with respect to EFS (HR 1.2; p=0.388). These results were confirmed in an independent validation set of 63 patients treated within the prospective RICOVER-noRx study. Conclusions: Vitamin D deficiency is a significant risk factor for patients with aggressive B-cell lymphomas treated with R-CHOP. The stronger adverse effect of vitamin D deficiency in patients receiving rituximab suggests that vitamin D deficiency interferes with the R mechanisms of this antibody. A prospective study evaluating the effects of vitamin D substitution on outcome of patients receiving R-CHOP is warranted. Supported by Deutsche Krebshilfe.

scholarly journals Vitamin D Deficiency in Children Despite Correctly Applied Rickets Prophylaxis

2020 ◽  
Vol 70 (12) ◽  
pp. 4332-4335
Keyword(s):  
Vitamin D ◽  
Vitamin D Deficiency ◽  
Calcium Absorption ◽  
Pediatric Population ◽  
Clinical Signs ◽  
Serum Levels ◽  
First Year ◽  
Vitamin D Levels ◽  
The Mean ◽  
First Year Of Life

Vitamin D is essential for calcium absorption and for maintaining bone health in the pediatric population. We conducted a retrospective study to establish the profile of a child aged under 3 years old with vitamin D deficiency in the context of correct prophylaxis, on a cohort of 49 children from two general practitioner offices. From the study group 30.6% of children (15 cases) had low vitamin D levels. The mean serum 25(OH)D level was 41.5±16.6 ng/ml. Regarding nutrition in the first year of life, breastfeeding predominated (83.7% of patients), and only 8.16% of patients had clinical signs of rickets. So, low serum levels of vitamin D can also be found in children who have successfully received correct prophylaxis with vitamin D. Keywords: vitamin D, children, rickets

scholarly journals Vitamin D Levels among Hospitalized and Non-Hospitalized COVID-19 Patients in Dr. M. Djamil General Hospital Padang

2021 ◽  
Vol 3 (6) ◽  
pp. 78-81
Author(s):  
Harika Putra ◽  
Efrida ◽  
Rismawati Yaswir
Keyword(s):  
Vitamin D ◽  
Immune System ◽  
Vitamin D Deficiency ◽  
Serum Vitamin ◽  
Study Groups ◽  
P Value ◽  
Chi Square ◽  
Serum Vitamin D ◽  
Vitamin D Levels ◽  
Chemiluminescent Microparticle Immunoassay

Coronavirus Disease 2019 (COVID-19) causes immune system dysregulation and an exaggerated systemic inflammatory response. Vitamin D acts as an immunomodulator that enhances the immunity defense. Low levels of vitamin D affect the severity of COVID-19 infection. This study aims to determine vitamin D levels in hospitalized and non-hospitalized COVID-19 patients. A case-control study was conducted involving 62 COVID-19 patients, equally divided into hospitalized and non-hospitalized groups at RSUP dr. M. Djamil, Padang from February to September 2020. Serum vitamin D levels were measured using the Chemiluminescent Microparticle Immunoassay. Vitamin D deficiency was defined as a level less than 20 ng/mL. The hospitalized group consisted of moderate to critical COVID-19 patients, whereas the non-hospitalized group consisted of the asymptomatic and mild COVID-19 patients according to the Indonesian Ministry of Health Guidelines. All data were analyzed using a T-test and Chi-square with a significant p-value of 0.05. The results showed that most subjects were women between 21–60 years. The mean level of vitamin D (ng/mL) in the hospitalized group was lower than in the non-hospitalized group (15.5 ± 7.72 vs. 19.2 ± 14.30; 95% CI -9.509–2.167; p=0.213). Vitamin D deficiency affected hospitalized group more than the non-hospitalized group, but not statistically significant (71% vs. 64.5%, p=0.566). It indicated the role of vitamin D in preventing immune system hyperactivation causing COVID-19 cytokine storm. This study concluded no difference in vitamin D levels among the study groups. Nevertheless, further research on vitamin D is needed to determine its role and benefits against COVID-19 infection.

Can YKL-40 be an Inflammatory Biomarker in Vitamin D Deficiency?

2019 ◽  
Vol 89 (5-6) ◽  
pp. 309-313
Author(s):  
Ummugulsum Can ◽  
Saliha Uysal ◽  
Ayse Ruveyda Ugur ◽  
Aysun Toker ◽  
Uysaler Aslan ◽  
...  
Keyword(s):  
Vitamin D ◽  
Vitamin D Deficiency ◽  
Serum Levels ◽  
Normal Serum ◽  
Plasma Vitamin ◽  
Inflammatory Biomarker ◽  
Vitamin D Levels ◽  
Group 2 ◽  
Hs Crp ◽  
Group 1

Abstract. Vitamin D deficiency is associated with several non-homeostatic conditions and/or diseases like inflammation, atherosclerosis, cardiovascular disease and mortality. YKL-40 is a glycoprotein, secreted by macrophages, neutrophils and different cell types and it is also associated with inflammation and pathological tissue remodeling. In this study, we aimed to evaluate relationship between the proinflammatory biomarkers YKL-40 and hs-CRP levels and vitamin D deficiency. Our study group includes 45 subjects with vitamin D deficiency (Group 1) (20 M, 25 F; mean age 37.72 ± 7.70 years) and 40 age and sex-matched healthy subjects with normal serum levels of vitamin D (Group 2) (19 M, 21 F; mean age 39.26 ± 7.41 years). Plasma 25 (OH) vitamin D levels were measured by liquid chromatography-tandem mass spectrometry (LC-MS/MS) method. Plasma YKL-40 analysis was performed by ELISA. Serum hs-CRP levels were measured by nephelometric method. Plasma vitamin D levels below 20 ng/mL were accepted as vitamin D deficiency. Although we could not find any significant differences by means of serum hs-CRP levels between Group 1 and Group 2 (2.21 (0.27–11.70); 1.79 (0.16–9.85) mg/L, p = 0.247), plasma YKL-40 levels were significantly higher in group 1 than group2 (70.47 (17.84–198.50); 47.14 (4.80–135.48) ng/mL, p = 0.047). In literature, vitamin D deficiency is associated with inflammation. In our study, we found similar hs-CRP levels between groups and higher YKL-40 levels in group 1. Vitamin D deficiency may be related to high YKL-40 levels in terms of causing chronic inflammation.

Vitamin D(25-OH-cholecalciferol) in Cystic Fibrosis and the Relations with Cholesterol and Proteins

2019 ◽  
Vol 70 (9) ◽  
pp. 3185-3187
Author(s):  
Ioana Mihaiela Ciuca ◽  
Liviu Laurentiu Pop ◽  
Mihaela Dediu ◽  
Sonia Aniela Tanasescu ◽  
Florina Ardelean ◽  
...  
Keyword(s):  
Cystic Fibrosis ◽  
Vitamin D ◽  
Logistic Regression ◽  
Vitamin D Deficiency ◽  
Pearson Correlation ◽  
Negative Relationship ◽  
Serum Levels ◽  
Average Value ◽  
Vitamin D Levels ◽  
25 Hydroxycholecalciferol

Study aimed to assess the level of 25-OH-cholecalciferol(vitamin D) and the relation with cholesterol, proteins and glycaemia levels in patients with cystic fibrosis. 58 patients underwent for the annual evaluations and were tested for vitamin D deficiency, as the centre�s protocol requires, besides dosage of cholesterol, glycaemia and proteins levels. Serum levels of 25-hydroxycholecalciferol were compared to levels of cholesterol, proteins and glycaemia, using Pearson correlation and logistic regression. The average value of 25-OH-cholecalciferol was 22,9 ng/mL, suggesting an important deficiency and different stages of 25-OH-cholecalciferol deficiency was found in the majority of patients. Nor a positive correlation neither negative relationship was found between vitamin D and cholesterol (r=0,23), glycaemia or proteins level. Vitamin D levels are not related to cholesterol or proteins in our study. Although cystic fibrosis is characterised by liposoluble vitamins deficiency and lipids impaired digestion, other factors influence the seric levels of vitamin D and lipids.

Evaluation of Maternal and Infantile Levels of Vitamin D in Preterm Infants

2021 ◽  
Vol 17 ◽  
Author(s):  
Hassan Boskabadi ◽  
Ali Moradi ◽  
Maryam Zakerihamidi
Keyword(s):  
Vitamin D ◽  
Vitamin D Deficiency ◽  
Preterm Infants ◽  
Premature Infants ◽  
Serum Levels ◽  
Severe Deficiency ◽  
Vitamin D Levels ◽  
The Difference ◽  
D 20 ◽  
D Values

Introduction: Vitamin D deficiency is highly prevalent during pregnancy and in premature infants. This study was done to investigate the maternal and infantile levels of vitamin D in preterm infants. Methods: Using available sampling during 2018-2020 the maternal and umbilical cord serum levels of vitamin D were measured in 294 premature infants in Ghaem Hospital, Mashhad, Iran. A researcher-made questionnaire containing neonatal demographic and clinical characteristics was used as data collection tool. Both maternal and placental vitamin D levels were categorized into four classes: severe deficiency (vitamin D<10 ng/ml), moderate deficiency (10.1≤vitamin D≤20 ng/ml), mild deficiency (20.1≤vitamin D≤30 ng/ml) and normal (vitamin D >30.1ng ml). Results: Vitamin D deficiency was seen in 89% of premature infants (46.6% severe, 30.6% moderate, and 11.9% mild). Serum levels of vitamin D were 18.28±13.94 ng/ml and 14.10±9.70 ng/ml in mothers and infants, respectively. The infants below and above 32 weeks had vitamin D values of: 10.97±6.31 ng/ml and 18.05±11.64 ng/ml, respectively. The difference in vitamin D levels between boys (12.59±8.40 ng/ml) and girls (16.05±11.45 ng/ml) was significant (P=0.009). Moderate and severe vitamin D deficiency were more common at earlier pregnancy ages (P=0.001). Conclusion: Vitamin D deficiency is more common and severe in preterm infants and their mothers. Controlling vitamin D level during pregnancy, especially in women at risk of preterm labor and preterm infants may help reduce prematurity problems.

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