Serum vitamin D levels in a cohort of adult and pediatric patients with eosinophilic esophagitis

BackgroundVitamin D deficiency is associated with the risk of cardiovascular diseases. We aimed to investigate the serum vitamin D levels in children with vasovagal syncope (VVS) and explore the correlation of vitamin D status and circadian rhythm of blood pressure in VVS pediatric patients.MethodsThis was a retrospective study. 130 syncopal children diagnosed with VVS were included in the study. 110 age and gender matched healthy individuals were enrolled as control. According to serum 25(OH)D levels, VVS patients were divided into vitamin D sufficient group and vitamin D deficient group. Detailed information of VVS children with vitamin D deficiency and sufficiency on demographic data, baseline laboratory testing, echocardiogram, ambulatory blood pressure monitoring, and Holter ECG recording were extracted and analyzed.ResultsVVS children had a higher prevalence of vitamin D deficiency compared with healthy individuals (33.8% vs. 20.0%, P = 0.017). VVS patients with vitamin D deficiency had a higher rate of non-dipper blood pressure (79.5% vs. 59.3%, P = 0.021) and a lower value of square root of mean squared differences of successive normal to normal intervals (rMSSD) (median 107.8 vs. 141.0 ms, P = 0.035) compared with those with vitamin D sufficiency. Logistic regression analysis showed that non-dipper blood pressure was associated with serum 25(OH)D level [OR = 0.979, 95% CI (0.960, 0.999), P = 0.036].ConclusionVVS pediatric patients had a higher prevalence of vitamin D deficiency. VVS children with vitamin D deficiency showed a higher rate of non-dipper blood pressure, suggesting that vitamin D deficiency is correlated with impaired circadian rhythm of blood pressure.

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Serum Vitamin D levels in pediatric patients and its association with COVID-19 clinical manifestation: A meta-analysis and systematic review

GSC Biological and Pharmaceutical Sciences ◽

10.30574/gscbps.2021.17.2.0328 ◽

2021 ◽

Vol 17 (2) ◽

pp. 076-085

Author(s):

Andrew Jonatan ◽

Retno Asih Setyoningrum

Keyword(s):

Vitamin D ◽

Clinical Manifestation ◽

Pediatric Patients ◽

Clinical Symptoms ◽

Pediatric Population ◽

Clinical Manifestations ◽

Serum Vitamin ◽

Human Immune System ◽

Serum Vitamin D ◽

Vitamin D Levels

Background: Vitamin D is involved in human immune system homeostasis and thought to be beneficial for COVID-19 patients, including pediatric population. However, there is still a paucity of information on association of serum vitamin D levels and COVID-19 clinical manifestation in pediatric patients. This study evaluated the association between serum vitamin D levels and clinical manifestations of COVID-19 in pediatric patients. Methods: We searched PubMed and Google Scholar for articles reporting association between vitamin D and COVID-19 clinical manifestations in pediatric patients. We searched for English-written articles only. PRISMA-MOOSE guideline and quality checklist was complied and statistical analysis was performed using RevMan 5.4. Results: Ten studies with total of 1,225 patients reported were reviewed. Low vitamin D levels was significantly associated with higher incidence of severe COVID-19 with pooled OR was 5.57 (1.59-19.55; p=0.007). Clinical symptoms were compared between low and normal vitamin D levels. Incidence of fever, cough, ageusia, anosmia, headache, and fatigue were not significantly different between group, with pooled RR was 2.13 (0.13-33.73; p=0.59), 1.25 (0.25-6.22; p=0.78), 0.47 (0.05-4.76; p=0.52), 1.25 (0.21-7.41; p=0.81), 0.91 (0.33-2.55; p=0.86), and 1.02 (0.47-2.22; p=0.96), respectively. The mean count of leukocytes and lymphocytes in the two groups were also not significantly different with pooled RR was -0.49 (-1.39-0.41; p=0.28), and -0.73 (-1.65-0.20; p=0.12), respectively. Conclusion: Low serum vitamin D level (<20 ng/ml) is associated with the severity of COVID-19 in pediatric patients, but do not affect symptoms and laboratory parameters. Vitamin D supplementation might be beneficial for children undergo medical quarantine and isolation.

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Clinical factors correlated with vitamin D deficiency in patients with obesity scheduled for bariatric surgery: A single center experience

International Journal for Vitamin and Nutrition Research ◽

10.1024/0300-9831/a000662 ◽

2020 ◽

Vol 90 (3-4) ◽

pp. 346-352

Author(s):

Vincenzo Pilone ◽

Salvatore Tramontano ◽

Carmen Cutolo ◽

Federica Marchese ◽

Antonio Maria Pagano ◽

...

Keyword(s):

Bariatric Surgery ◽

Vitamin D ◽

Vitamin D Deficiency ◽

Serum Vitamin ◽

Inverse Correlation ◽

Model Assessment ◽

Cross Sectional ◽

Serum Vitamin D ◽

Female Sex ◽

Vitamin D Levels

Abstract. We aim to assess the prevalence of vitamin D deficiency (VDD) in patients scheduled for bariatric surgery (BS), and to identify factors that might be associated with VDD. We conducted a cross-sectional observational study involving all consecutive patients scheduled for BS from 2017 to 2019. The exclusion criteria were missing data for vitamin D levels, intake of vitamin D supplements in the 3 months prior to serum vitamin D determination, and renal insufficiency. A total of 206 patients (mean age and body mass index [BMI] of 34.9 ± 10.7 years, and 44.3 ± 6.99 kg/m2, respectively) met the inclusion criteria and were enrolled for data analysis. VDD (<19.9 ng/mL), severe VDD (<10 ng/mL), and vitamin D insufficiency (20–29.9 ng/mL) were present in 68.8 %, 12.5 %, and 31.2 % of patients, respectively. A significant inverse correlation was found between vitamin D levels and initial BMI, parathyroid hormone, and homeostatic model assessment of insulin resistance (r = −0.280, p < 0.05; r = −0.407, p = 0.038; r = −0.445, p = 0.005), respectively. VDD was significantly more prevalent in patients with higher BMI [−0.413 ± 0.12, CI95 % (−0.659; −0.167), p = 0.006], whereas no significant association between hypertension [−1.005 ± 1.65, CI95 % (−4.338; 2.326), p = 0.001], and diabetes type 2 (T2D) [−0.44 ± 2.20, CI95 % (−4.876; 3.986), p = 0.841] was found. We observed significant association between female sex and levels of vitamin D [6.69 ± 2.31, CI95 % (2.06; 11.33), p = 0.006]. The present study shows that in patients scheduled for BS, VDD deficiency is common and was associated with higher BMI, and female sex.

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Maternal Serum Vitamin D Levels During Pregnancy and Offspring Neurocognitive Development

PEDIATRICS ◽

10.1542/peds.2011-2644d ◽

2012 ◽

Vol 129 (3) ◽

pp. X11-X11

Keyword(s):

Vitamin D ◽

Serum Vitamin ◽

Maternal Serum ◽

Neurocognitive Development ◽

Serum Vitamin D ◽

Vitamin D Levels

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Faculty Opinions recommendation of Decreased serum vitamin D levels in children with asthma are associated with increased corticosteroid use.

Faculty Opinions – Post-Publication Peer Review of the Biomedical Literature ◽

10.3410/f.3437965.3141061 ◽

2010 ◽

Author(s):

Leonard Bacharier ◽

Avraham Beigelman

Keyword(s):

Vitamin D ◽

Serum Vitamin ◽

Serum Vitamin D ◽

Vitamin D Levels ◽

Children With Asthma

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Association of Vitamin D Levels and Other Risk Factors with Asthma Exacerbations in Children

Pakistan Journal of Medicine and Dentistry ◽

10.36283/pjmd9-4/004 ◽

2020 ◽

Keyword(s):

Risk Factors ◽

Vitamin D ◽

Serum Vitamin ◽

Persistent Asthma ◽

Food Allergies ◽

P Value ◽

Serum Vitamin D ◽

Asthma Exacerbations ◽

Vitamin D Levels ◽

Animal Dander

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.

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