Association of hypovitaminosis D with poor glycemic control and obesity in type II diabetes mellitus.

2020 ◽  
Vol 27 (07) ◽  
pp. 1386-1390
Author(s):  
Tahir Ullah Khan ◽  
Rozina Arshad ◽  
Zohaib Ahmad Khan

Objectives: To determine the association of low serum vitamin D levels with poor glycemic control and obesity in type 2 diabetic patients. Study Design: Descriptive Cross Sectional study. Setting: Sakina Institute of Diabetes and Endocrine Research Centre (SIDER), Shalamar Hospital Lahore. Period: 1st June to 31th august 2017. Material & Methods: After applying strict exclusion criteria, about 450 patients with known type II diabetes were enrolled in the present study and their HBA1C and fasting vitamin D levels were measured. Patients were divided into two groups, group 1 with poor glycemic control (HBA1C>8%) and group 2 with good glycemic control (HBA1C <8%). Results: After performing extensive matching in both groups, it was found that vitamin D levels in group 1 with poor glycemic control were significantly low as compared to group 2 with good glycemic control (p value <0.001). Furthermore, approximately 87% of patients with BMI >23 were having suboptimal Vitamin D levels (p value <0.005). Conclusions: Low serum vitamin D is associated with poor glycemic control in type 2 diabetics and vitamin d supplementation could possibly play a role in improving glycemic control in these patients. Furthermore, hypovitaminosis D is also associated with obesity.

Author(s):  
Anupriya Narain ◽  
Alka Goel ◽  
Parul Goyal

Background: Several studies in the past two decades have proved beyond doubt that there is a high prevalence of hypovitaminosis D worldwide including India which has almost taken the shape of a pandemic. The study aims to determine the prevalence of hypovitaminosis D in the pregnant population of Delhi and its correlation with gestational diabetes mellitus.Methods: This prospective cross sectional observational study was conducted at the Department of Obstetrics and Gynaecology, Postgraduate Institute of Medical Education and Research (PGIMER), Dr R.M.L Hospital, New Delhi over a period of 1 year and 4 months. Four hundred term patients were enrolled randomly from amongst the patients admitted in labor room or antenatal ward at PGIMER, Dr. Ram Manohar Lohia Hospital who fulfilled the inclusion and exclusion criteria. 3-4ml of fasting blood samples were collected of all the enrolled women and were analysed for total serum calcium levels and serum vitamin D levels. History of presence of gestational diabetes mellitus was noted along with any treatment history. The 25(OH)D levels for each subject was recorded and correlation of vitamin D levels with gestational diabetes mellitus was analysed. Statistical analysis was done using ANOVA/ Kruska Wallis test and Chi-Square test/ Fisher’s exact test. A p value of <0.05 was considered statistically significant.Results: The overall prevalence of vitamin D deficiency in the present study was 86.25%. The overall mean serum vitamin D level was 14.06±9.43 ng/ml. Thirty five out of 37 GDM patients had hypovitaminosis D i.e. 94.59%. The prevalence of hypovitaminosis D among non-GDM population was 85.40%. The association between GDM and Vitamin D deficiency was statistically non- significant in the present study with p value=0.186.Conclusions: There is a very high prevalence of hypovitaminosis D in pregnant females attending present institute i.e. 86.25%. Although 94.59 % of Gestational Diabetes Mellitus patients had vitamin D deficiency, there is no statistically significant association between Gestational diabetes mellitus and serum vitamin D levels.


Background: The risk factors for asthma exacerbations are well understood. However, the effect of vitamin D levels on number of asthma exacerbations per year is not clearly studied. The objective of the study was to find out the association of serum vitamin D levels and asthma risk factors on asthma exacerbations. Methods: In this study, ninety-nine subjects from 5 to 15 years of age were recruited at an episode of acute exacerbation. It was a cross sectional study and carried out from 2012 to 2015. Pulmonary function test was done by spirometry. Asthma exacerbation was labeled when forced expiratory volume/ forced vital capacity (FEV1/FVC) ratio was less than 80% (American Thoracic Society). Global Initiative for Asthma (GINA) guidelines were used to classify asthma into mild, moderate and severe persistent asthma. Serum vitamin D levels were measured by chemiluminescence method. Pearson Chi-square test was applied and p value (p<0.05) was considered as statistically significant. Results: Children who had exposure to animal dander had significantly lower asthma exacerbations per year (p-value <0.046). There was no significant association between vitamin D levels and number of exacerbations per years (p-value <0.099). Asthma was prevalent in girls of low socioeconomic status (SES) compared to males. However, there was no significant association between smoke, exercise, home environment, food allergies, weather, pollen and dust with asthma exacerbations. Conclusion: Low levels of vitamin D were not associated with increased number of asthma exacerbations per year. However, children exposed to animal dander had lesser number of exacerbations per year (p-value <0.046). Keywords: Asthma; Vitamin D; Children; Exacerbations, Risk factors.


2021 ◽  
pp. 205141582199360
Author(s):  
Ghanshyam Kumawat ◽  
Vijay Chaudhary ◽  
Anurag Garg ◽  
Nishkarsh Mehta ◽  
Gagan Talwar ◽  
...  

Objective: We aimed to find out the association of low serum vitamin D levels with the incidence of prostate cancer through a prospective case-control study. Material and methods: This study was carried out in the tertiary care hospital (India). All newly diagnosed patients of prostate cancer and age-matched controls were included. Serum vitamin D levels were measured in all of them. Vitamin D status (ng/mL) was classified as severe deficiency <10, moderate deficiency 10–<30, normal 30–100, and toxicity >100. Normality of the data was tested by the Kolmogorov–Smirnov test, statistical analysis was done with Statistical Package for the Social Sciences version 26.0, p-value of <0.05 was considered significant. Results: In our study, 320 cases and 320 controls were included. The mean vitamin D levels in cases and controls were 15.71 ± 6.5 (ng/mL) and 17.63 ± 4.54 (ng/mL), respectively, ( p-Value <0.01). Patients with severe vitamin D deficiency (73.58%) had a Gleason score ⩾8 on biopsy and 79.24% of them had a serum prostate specific antigen (PSA) level >20 ng/mL. Conclusion: We had concluded that there was no significant association between vitamin D deficiency and increased risk of prostate cancer, although patients with higher-grade prostate cancer and with higher PSA level had severe vitamin D deficiency. Level of evidence: Not applicable for this multicentre audit.


2021 ◽  
Vol 7 (4) ◽  
pp. 320-323
Author(s):  
Ritika Gujrati ◽  
Krishnendra Varma ◽  
Ujjwal Kumar

Psoriasis is an immuno-mediated chronic systemic disease involving cytokines of helper Th1 pathway. Vitamin D has an effect on keratinocyte proliferation, differentiation and immune modulation of immune system especially Th1 pathway, which is altered in psoriatic skin suggesting that Vitamin D may have a role in pathogenesis of psoriasis. To study correlation between psoriasis vulgaris and serum vitamin D. To evaluate serum vitamin D level in psoriasis cases and in control group and correlating vitamin D level with severity and duration of the psoriasis. 57 cases (&#62;15years of age) with psoriasis and 57 healthy subjects were recruited. Psoriasis was clinically diagnosed and severity evaluated by PASI scale. Vitamin D was analysed by enhanced chemilumine scence on vitrus Eci autoanalyzer of Orth clinical diagnostic. Vitamin D deficiency defined as &#60;20ng/ml, insufficiency 20-30ng/ml and sufficient 30-100ng/ml. Vitamin D deficiency in the study was 22.8% in patients and 14% in control group. Vitamin D insufficiency was found in 42.1% of cases and 19.3% of control. According to chi-square the p-value is 0.003 showing significant association. There was a tendency towards decrease in vitamin D level with increase in disease duration. There was negative correlation between vitamin D and PASI score. The study found a significant relationship between vitamin D and psoriasis. Further metanalysis involving larger study population will be required to establish whether vitamin D levels benefits patient with psoriasis vulgaris.


2017 ◽  
Vol 4 (4) ◽  
pp. 1397
Author(s):  
Pragalatha Kumar ◽  
Aruna Gowdra ◽  
Arathi Arathi ◽  
Ananya Sampath

Background: Vitamin D deficiency has been rediscovered as a public health problem worldwide. Few studies have shown that vitamin D deficiency is associated with asthma severity. The objective of present work was to study the serum vitamin D levels and its relationship with asthma severity in children.Methods: A prospective cohort study of 100 children with asthma between the age group of 5 to 15 years and age and sex matched 40 healthy controls who had come to Indira Gandhi Institute of Child Health, Bengaluru was done. These children’s serum vitamin D levels were estimated and correlated with asthma severity.Results: A total of 100 children with asthma and 40 healthy age and sex matched controls were evaluated. The study group had lower vitamin D (34.95 ng/ml) levels as compared to the control group (57.94 ng/ml) which was statistically significant (p<0.05). 68.4% children had significantly low vitamin D levels and severe form of asthma (p value <0.001). There was also a marked rise in absolute eosinophil count in those who had low vitamin D levels (56.6%) (p-value <0.0001).Conclusions: Vitamin D deficiency is an important risk factor for asthma severity. It modifies the immune system and reduces the inflammation. In the present study, low serum vitamin D levels were significantly correlated with severe form of asthma. There was a significant rise in the absolute eosinophil count in those who exhibited deficiency of vitamin D.  


2019 ◽  
Vol 2019 ◽  
pp. 1-4
Author(s):  
Elif Ganime Aydeniz ◽  
Umut Sari ◽  
Isil Tekin ◽  
Talat Umut Kutlu Dilek

Objective. The main goal of our study was to assess relationships between first trimester 25-hydroxyvitamin D3 levels and infant birthweight and length at birth. Materials and Methods. We conducted a study over our medical records of 154 live-term births at Acibadem Atakent Hospital, Istanbul, Turkey. Subjects were classified into five independent groups. Results. We retrospectively reviewed a total of 154 live birth records. They took vitamin D3 supplement 1000 U/day. We classified the serum vitamin D levels into 5 groups by concentration. Group 1 comprised serum vitamin D levels <10 ng/ml (n = 41); group 2 comprised serum Vitamin D levels between >10–16 ng/ml (n = 33); group 3 comprised serum vitamin D levels >16–20 ng/ml (n = 26); group 4 vitamin D level between >20–30 ng/ml (n = 33) and group 5 comprised vitamin D levels >30 ng/ml. The femurs of infants were found to be longer between the groups, although the differences were not significant (p=0.054). There was also a statistically significant difference in the neonatal birth weight (p=0.048). Conclusion. We observed associations between low and high maternal 25-hydroxyvitamin D3 levels and fetal growth at birth weight but no difference in birth length. We conclude that we always need to conduct further research to be able to predict the effects of vitamin D deficiency.


2020 ◽  
Vol 5 (2) ◽  
pp. e34-e34
Author(s):  
Yasaman Koohshoori ◽  
Ehsan Ramanian ◽  
Nasrin Moradi ◽  
Shahrzad Shadabi ◽  
Minoo Motahhar ◽  
...  

Introduction: Coronavirus disease 2019 (COVID-19) from the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is one of the most important epidemiological events in the past 100 years has become, the consequences for public health and economic systems around the world. Vitamin D is an important micronutrient that has been reported to improve immunity and protect against respiratory diseases. In this study, we intend to review articles that examine the relationship between COVID-19 and vitamin D. Methods: This is a review that uses articles from studies published in 2020 on the relationship between COVID-19 and vitamin D in databases such as; Web of Science, Science Direct, SID, Magiran, Google Scholar and PubMed. Keywords used included; serum levels of 25-hydroxyvitamin D, vitamin D, COVID-19, SARS-COV-2 and coronavirus 2. With this search, 32 articles were finally selected for this purpose and their results were reviewed Results: Of the 32 studies reviewed, only three showed no association between vitamin D levels in the blood and COVID-19 disease. Other studies had a relationship between the severity of the disease, mortality rate and length of hospital stay, in different age, gender and location groups. Conclusion: It seems that the level of vitamin D in the blood has a potential effect on COVID-19 disease. Checking the serum vitamin D levels and supplementation in people with hypovitaminosis D can be a good solution to reduce the complications and problems caused by COVID-19.


2021 ◽  
Vol 3 (6) ◽  
pp. 78-81
Author(s):  
Harika Putra ◽  
Efrida ◽  
Rismawati Yaswir

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.


2021 ◽  
Author(s):  
Sahba Fekri ◽  
Masoud Soheilian ◽  
Sepehr Roozdar ◽  
Seyed-Hossein Abtahi ◽  
Hosein Nouri

Abstract Purpose: Concomitant vitamin D deficiency (VDD) is speculated to aggravate diabetic macular edema (DME). We aimed to determine the effect of hypovitaminosis D correction on the outcome of treatment with intravitreal bevacizumab (IVB) in DME eyes.Methods: 83 eyes of 83 patients with DME were recruited and divided into three groups: normal vitamin D levels + IVB administration (Group 1 ), vitamin D insufficient/deficient + IVB administration (Group 2), and vitamin D insufficient/deficient + IVB administration+ oral vitamin D supplementation (Group 3). Visual (corrected distance visual acuity, CDVA) and anatomical (central macular thickness, CMT) outcomes of intervention were evaluated 1, 3, and 6 months after the triple IVB injections were completed. Serum vitamin D levels were measured 1 and 6 months after the third IVB administration. Results: In months 1, 3, and 6, after the basic triple IVB injection, visual acuity and CMT improved in all three groups, but improvements (both functional and anatomical) in groups 1 and 3 (sufficient vitamin D and corrected hypovitaminosis D) in month 6 were more significant than in group 2 (uncorrected hypovitaminosis D) (p <0.001). The mean number of IVB injections during follow-up was 5.33 (range: 4-7), which did not differ between the groups.Conclusion: Correction of vitamin D deficiency in DME patients with type 2 diabetes and vitamin D deficiency, in addition to IVB injections, may play a role in improving CDVA and CMT. However, this beneficial effect seems to be delayed by several months.Trial registration: Iranian Registry of Clinical Trials (IRCT), IRCT20200407046978N1, registered on April 11, 2020, - retrospectively registered. https://en.irct.ir/trial/46999


Genes ◽  
2020 ◽  
Vol 11 (8) ◽  
pp. 897
Author(s):  
Joana T. Almeida ◽  
Dircea Rodrigues ◽  
Joana Guimarães ◽  
Manuel C. Lemos

Vitamin D has immunomodulatory effects, and its deficiency has been implicated in the autoimmune process of type 1 diabetes. Serum vitamin D levels are influenced by variants in genes involved in the synthesis, transport, hydroxylation and degradation of vitamin D. The aim of this study was to assess if single nucleotide polymorphisms (SNPs) at the DHCR7 (rs12785878), GC (rs2282679), CYP2R1 (rs2060793) and CYP24A1 (rs6013897) loci are associated with type 1 diabetes in the Portuguese population. Genotype and allele frequencies were determined in 350 cases of type 1 diabetes and in 490 controls. The frequency of each SNP alone was not significantly different between patients and controls. However, the combined analysis of the four SNPs showed that minor alleles of these variants clustered more frequently in patients. The proportion of individuals with three or more minor alleles was significantly higher in patients than in controls (56.3% vs. 48.5; odds ratio (OR) 1.37; 95% confidence interval (CI) 1.04–1.81; p-value 0.027). These results suggest a cumulative effect of SNPs at the DHCR7, GC, CYP2R1 and CYP24A1 loci on the susceptibility to type 1 diabetes, due to the roles of these genes in the vitamin D metabolic pathway.


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