scholarly journals Vitamin D Levels in Patients with and without Acne and Its Relation to Acne Severity: A Case-Control Study

2020 ◽  
Vol Volume 13 ◽  
pp. 759-765
Author(s):  
Ghadah Alhetheli ◽  
Ahmed Ibrahim Abd Elneam ◽  
Adel Alsenaid ◽  
Mohammed Al-Dhubaibi
Keyword(s):  
Vitamin D ◽  
Case Control Study ◽  
Case Control ◽  
Vitamin D Levels ◽  
Control Study

scholarly journals Vitamin D Status and Its Role in First-Time and Recurrent Urinary Tract Infections in Children: A Case-Control Study

Children ◽  
2021 ◽  
Vol 8 (5) ◽  
pp. 419
Author(s):  
Carmen Muntean ◽  
Maria Săsăran
Keyword(s):  
Vitamin D ◽  
Urinary Tract ◽  
Case Control Study ◽  
Case Control ◽  
Study Group ◽  
Recurrent Utis ◽  
Vitamin D Levels ◽  
Tract Infections ◽  
First Time ◽  
Control Study

Vitamin D has emerged as a key factor in innate immunity. Its involvement in the pathogenesis of urinary tract infections (UTIs) has gained a lot of attention recently. The objective of this study is to investigate the association between serum 25-hydroxyvitamin D (25(OH)D) levels and first-time or recurrent UTIs in children. A prospective, case-control study was conducted on 101 pediatric patients, who were divided into two groups: 59 patients with UTIs and 42 age-matched healthy controls. Serum 25(OH)D was determined in each child and expressed in ng/mL. Vitamin D presented significantly lower values in study group subjects than in healthy controls (p < 0.01). Moreover, a significantly higher prevalence of vitamin D insufficiency and deficiency was found in children with UTIs (p < 0.01). Patients with recurrent UTIs presented significantly lower levels of vitamin D than those with first-time UTIs (p = 0.04). Urinary tract abnormalities did not seem to exercise an additional effect upon vitamin D levels within the study group. In conclusion, first-time and recurrent UTIs are associated with lower vitamin D levels. Further studies are necessary to validate our findings, as well as future longitudinal research regarding efficacy of vitamin D supplementation in children with UTIs.

Lower Vitamin D Level as a Risk Factor for Late Onset Neonatal Sepsis: An Observational Case–Control Study

2021 ◽  
Author(s):  
Shaimaa Reda Abdelmaksoud ◽  
Mostafa Abdel-Azim Mostafa ◽  
Rana Atef khashaba ◽  
Effat Assar
Keyword(s):  
Vitamin D ◽  
Case Control Study ◽  
Late Onset ◽  
Case Control ◽  
Sepsis Group ◽  
Term Neonates ◽  
Maternal Vitamin ◽  
Vitamin D Levels ◽  
25 Oh Vitamin D ◽  
Control Study

Objective The aim of the study is to investigate the relation of neonatal and maternal vitamin D and late-onset sepsis (LOS) Study Design One-hundred twenty term neonates along with their mothers were enrolled in this case–control study. Sixty neonates who were admitted in the neonatal intensive care unit by LOS and had not been previously admitted for last 48 hours and did not receive antibiotics or vitamin D were enrolled as cases (sepsis) group. On the other hand, 60 healthy term neonates were referred as control group. Maternal and neonatal serum 25-OH vitamin D levels were assessed in both the cohorts. Results Maternal and neonatal 25-OH vitamin D levels in cases (17.2 and 16.1 ng/mL, respectively) were significantly lower than in controls (22.7 and 21 ng/mL, respectively) p = 0.001. In the study group, the neonatal 25-OH vitamin D was negatively correlated with C-reactive protein and length of hospital stay (r = −0.616 and −0.596, respectively) p <0.001 for both. With a cut-off value of 12.9 ng/mL, the specificity and positive predictive value of neonatal vitamin D were 83.3 and 74.4%, respectively. The odds ratio was 1.088 (95% CI = 1.034–1.144)) for LOS in vitamin D-deficient neonates. Conclusion Neonates with higher vitamin D level are at lower risk of LOS than those with vitamin D deficiency. Maternal vitamin D correlates with neonatal vitamin D. These data suggest that maternal vitamin supplementation during pregnancy may lower the risk of LOS. Key Points

scholarly journals A case control study of serum vitamin D levels in alopecia areata

2020 ◽  
Vol 8 (10) ◽  
pp. 3550
Author(s):  
Bobbili Tarun Kesava Naidu ◽  
Kavya Baddireddy
Keyword(s):  
Vitamin D ◽  
Alopecia Areata ◽  
Case Control Study ◽  
Serum Vitamin ◽  
Autoimmune Disorder ◽  
Case Control ◽  
Serum Vitamin D ◽  
Vitamin D Levels ◽  
Severity Of The Disease ◽  
Control Study

Background: Alopecia areata is an autoimmune disorder of anagen hair follicle leading to distressing and relapsing non-scarring hair loss. Vitamin D is an immunomodulator and plays a role in regulating normal hair cycle. Recent evidence suggests inconsistent association between vitamin D deficiency and alopecia areata.Methods: This case control study included 70 newly diagnosed cases of alopecia areata and 70 healthy controls. Competitive chemiluminescence immunoassay was used to determine and compare the serum vitamin D (25‑hydroxyvitamin D) levels between these groups. Also, the serum vitamin D levels correlation with severity of the disease was studied. ANOVA test and student t test were used for the statistical analysis.Results: Serum Vitamin D levels were significantly decreased in alopecia areata patients than in controls (p<0.05). There was no stastically significant relationship between serum 25-OH Vitamin D levels and severity of the disease (p=0.06).Conclusions: Prevalence of serum 25 (OH) deficiency was significantly higher in alopecia areata group. However no significant relation was found with disease severity.

scholarly journals Correlation Between 25-hydroxy-Vitamin D and Parkinson's Disease:A Case-Control study

2020 ◽  
Author(s):  
ming xia ◽  
wenjuan Xiu ◽  
Xuliang Wang ◽  
Tingting Wu ◽  
Yingying Zheng ◽  
...  
Keyword(s):  
Parkinson’S Disease ◽  
Vitamin D ◽  
Parkinson's Disease ◽  
Vitamin D Deficiency ◽  
Case Control Study ◽  
Case Control ◽  
Lower Serum ◽  
Vitamin D Levels ◽  
25 Hydroxy Vitamin D ◽  
Control Study

Abstract Background: Previous cross-sectional studies have shown that Parkinson’s disease (PD) patients have lower serum 25- hydroxy vitamin D (25(OH)D) concentrations than controls. whether the research in other regions findings are generalizable to China populations remains untested in other studies. In this case-control study we examined the Correlation between 25-hydroxy-vitamin D and Parkinson's disease.Methods:We establish an association between deficiency of 25-hydroxy-vitamin D and PD in a case-control study of 100 PD patients and 100 control subjects free of neurologic disease in the First Affliated Hospital of Xinjiang Medical University.Results:Total 25-hydroxy-vitamin D levels, were deficient in 21% of patients with PD compared with 4% of controls. In univariate analyses Plasma levels of 25-hydroxy-vitamin D were associated with PD(p<0.001), respectively. In multivariate analyses, Vitamin D deficiency(25(OH)D <20 ng/mL) were significant associated with PD (p=0.008,OR=17.13,95% CI, 2.082-141.075). Individuals with levels in the lowest quartile of 25(OH)D values had the highest prevalence of PD(p =0.026,OR=11.786,95%CI,1.342-103.51)compared with individuals with values in the highest quartile.Conclusions:Our study reveals an association between 25-hydroxy-vitamin D and PD.Patients with incident PD had significantly lower serum 25(OH)D concentrations than age-matched controls, High-risk PD patients with vitamin D deficiency who have not yet developed exercise impairment, these populations should undergo vitamin D measurement and vitamin D treatment as soon as possible.

scholarly journals The determinants of serum vitamin D levels in participants in a melanoma case–control study living in a temperate climate

2011 ◽  
Vol 22 (10) ◽  
pp. 1471-1482 ◽  
Author(s):  
John R. Davies ◽  
Yu-Mei Chang ◽  
Helen Snowden ◽  
May Chan ◽  
Susan Leake ◽  
...  
Keyword(s):  
Vitamin D ◽  
Case Control Study ◽  
Serum Vitamin ◽  
Case Control ◽  
Temperate Climate ◽  
Serum Vitamin D ◽  
Vitamin D Levels ◽  
Control Study ◽  
Melanoma Case

scholarly journals Polymorphisms CYP2R1 rs10766197 and CYP27B1 rs10877012 in Multiple Sclerosis: A Case-Control Study

2021 ◽  
Vol 2021 ◽  
pp. 1-11
Author(s):  
A. Martinez-Hernandez ◽  
E. E. Perez-Guerrero ◽  
M. A. Macias-Islas ◽  
C. A. Nava-Valdivia ◽  
A. Villagomez-Vega ◽  
...  
Keyword(s):  
Multiple Sclerosis ◽  
Vitamin D ◽  
Disease Progression ◽  
Case Control Study ◽  
Case Control ◽  
Nucleotide Polymorphisms ◽  
Increased Risk ◽  
Vitamin D Levels ◽  
25 Oh Vitamin D ◽  
Control Study

Background. Multiple sclerosis (MS) is a chronic autoimmune inflammatory disease. Low vitamin D levels have been reported to be a risk factor for MS, and genetic variances could be implicated. The aim of this study was to evaluate the association of MS with rs10766197 polymorphism of CYP2R1 gene and rs10877012 polymorphism of CYP27B1 gene. The second aim was to analyse whether these polymorphisms are associated with the severity of the progression of MS. Material and Methods. In a case-control study, we included 116 MS patients and 226 controls, all of whom were Mexican Mestizo. MS was diagnosed by McDonald criteria (2017). A complete neurological evaluation was performed to evaluate the severity of disease progression. Serum 25-hydroxyvitamin D [25(OH) vitamin D] levels were measured by ELISA. Single nucleotide polymorphisms rs10766197 of CYP2R1 gene and rs10877012 SNP of CYP27B1 gene were genotyped by real-time PCR. Results. Serum 25(OH) vitamin D levels were lower in MS patients than in controls ( p = 0.009 ). No differences were observed between serum 25(OH) vitamin D levels of MS patients with severe progression compared to low progression ( p = 0.88 ). A higher frequency of the A allele of CYP2R1 rs10766197 was observed between MS patients and controls ( p = 0.05 ). No differences were observed in the frequency of T allele of CYP27B1 rs10877012 ( p = 0.65 ). In subanalysis, patients with GA + AA genotypes of CYP2R1 rs10766197 had an increased risk of MS compared to controls ( p = 0.03 ). No increased risk was observed in GT + TT genotypes of CYP27B1 rs10877012 ( p = 0.63 ). No differences were observed in allele frequencies of either polymorphism between patients with severe vs. low disease progression. Conclusion. Lower serum 25(OH) vitamin D levels were observed in MS patients than in controls, although these levels were not associated with disease progression. Carriers of GA + AA genotypes of CYP2R1 rs10766197 had an increased risk of MS. None of these polymorphisms was associated with severe progression of MS.

scholarly journals A case-control study on rosacea and vitamin D levels

2018 ◽  
Author(s):  
Gülhan Gürel ◽  
Müjgan Karadöl ◽  
Emine Çölgeçen
Keyword(s):  
Vitamin D ◽  
Case Control Study ◽  
Case Control ◽  
Vitamin D Levels ◽  
Control Study
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