scholarly journals Effects of vitamin D on motor symptoms and cognitive functions in people with Parkinson’s disease

2021 ◽  
Vol 15 (1) ◽  
pp. 135-140
Author(s):  
Gülbün Asuman Yüksel ◽  
Gizem Gürsoy
Keyword(s):  
Parkinson’S Disease ◽  
Vitamin D ◽  
Parkinson's Disease ◽  
Serum Vitamin ◽  
Control Group ◽  
Serum Vitamin D ◽  
Vitamin D Levels ◽  
Significant Difference ◽  
The Relationship ◽  
Lower Vitamin

Aim of the study: Parkinson’s disease is the second most common neurodegenerative disorder. The present study investigates the role of vitamin D deficiency thought to be one of the etiopathological and modifying factors in Parkinson’s disease that is known to be multifactorial. Materials and Methods: Designed as a retrospective review of medical records, this study compares the serum vitamin D levels of the idiopathic Parkinson’s disease patients with and without dementia to those of the healthy individuals with no metabolic/degenerative disorders. It also investigates the relationship between the patients’ Standardized Mini-Mental State Examination (SMMSE) and the Unified Parkinson’s Disease Rating Scale (UPDRS) scores and serum vitamin D levels to show the effects of vitamin D on motor symptoms and cognitive functions. Results: In this study, we compared the serum vitamin D levels of 40 Parkinson’s disease patients and 15 Parkinson’s disease patients with dementia to those of the control group comprising 30 healthy individuals. Vitamin D levels were 21,4±15,9 ng/mL in the control group; 16,5±6,4 ng/mL in Parkinson’s disease patients and 13,8±4,5 ng/mL in Parkinson’s disease patients with dementia. All the patient groups had significantly lower vitamin D levels than the control group (p<0,005). Within the Parkinson’s disease group, furthermore, the dementia group had lower vitamin D levels than the non-dementia group. Having examined the relationship between the SMMSE scores and serum vitamin D levels, we found a significant difference in the Parkinson’s disease dementia group (p: 0,020), as well as a relationship of 59,4% in the same direction. On the other hand, there was no significant difference in either patient group in the scores of UPDRS evaluating clinical disability. Conclusion: Consistent with the literature, the present study found that people with Parkinson’s disease had lower mean values of serum vitamin D levels than the control group and showed that serum vitamin D levels were correlated with the cognitive performance. However, the study could not find a relationship between the serum vitamin D levels and the motor performance.

scholarly journals VITAMIN D DEFICIENCY IN PATIENTS WITH PSORIASIS AND PSORIATIC ARTHRITIS

2020 ◽  
pp. 168-170
Author(s):  
JINAN Q MOHAMMED ◽  
ABDULSATAR J MATHKHOR ◽  
AMER S KHUDHAIRY
Keyword(s):  
Vitamin D ◽  
Psoriatic Arthritis ◽  
Vitamin D Deficiency ◽  
Disease Duration ◽  
Serum Vitamin ◽  
Control Group ◽  
Serum Vitamin D ◽  
Vitamin D Levels ◽  
Significant Difference ◽  
Lower Vitamin

Objective: The objective of this study is to investigate the association between Vitamin D level and psoriasis, in particular in our city of the long, hot, and sunny weather, in an attempt to add a clarification to this controversial subject. Methods: A case–control study included 120 patients with psoriasis and 38 patients with psoriatic arthritis (PsA); 89 (56.3%) patients were male. Psoriasis area and severity index (PASI) was calculated for all patients with psoriasis and disease activity score using 28 joints (DAS28) and erythrocyte sedimentation rate (DAS28) was measured for all patients with PsA. The control group comprised 164 age- and sex-matched participants (91 males and 73 females). Vitamin D serum level was performed for both patients and controls. Results: Vitamin D levels in both patients and controls were 17.4±7.7 and 28.3±5.6, respectively. The level of Vitamin D was lower in a patient with disease duration equal and more than 10 years than those with a disease duration <10 years. There is no significant difference in Vitamin D levels between the two patient subgroups. Lower Vitamin D levels were associated with high PASI and high DAS28 in psoriasis and PsA, respectively. Conclusion: Patients with psoriasis and PsA associated with low levels of serum Vitamin D. Vitamin D deficiency was found to be associated with long disease duration in both psoriasis and PsA. Patients with active disease have lower Vitamin D levels.

scholarly journals Role of Vitamin D in Parkinson’s Disease

2012 ◽  
Vol 2012 ◽  
pp. 1-11 ◽  
Author(s):  
Khanh Lương ◽  
Lan Nguyễn
Keyword(s):  
Parkinson’S Disease ◽  
Vitamin D ◽  
Parkinson's Disease ◽  
Mhc Class Ii ◽  
Serum Vitamin ◽  
Renin Angiotensin System ◽  
Vitamin D Supplementation ◽  
Heme Oxygenase 1 ◽  
Serum Vitamin D ◽  
Vitamin D Levels

Parkinson’s disease (PD) is the second most common form of neurodegeneration in the elderly population. Clinically, it is characterized by tremor, rigidity, slowness of movement, and postural imbalance. A significant association between low serum vitamin D and PD has been demonstrated, suggesting that elevated vitamin D levels might provide protection against PD. Genetic studies have helped identify a number of proteins linking vitamin D to PD pathology, including the major histocompatibility complex (MHC) class II, the vitamin D receptor (VDR), cytochrome P450 2D6 (CYP2D6), chromosome 22, the renin-angiotensin system (RAS), heme oxygenase-1 (HO-1), poly(ADP-ribose) polymerase-1 gene (PARP-1), neurotrophic factor (NTF), and Sp1 transcription factor. Vitamin D has also been implicated in PD through its effects on L-type voltage-sensitive calcium channels (L-VSCC), nerve growth factor (NGF), matrix metalloproteinases (MMPs), prostaglandins (PGs) and cyclooxygenase-2 (COX-2), reactive oxygen species (ROS), and nitric oxide synthase (NOS). A growing body of evidence suggests that vitamin D supplementation may be beneficial for PD patients. Among the different forms of vitamin D, calcitriol (1,25-dihydroxyvitamin D3) is best indicated for PD, because it is a highly active vitamin D3 metabolite with an appropriate receptor in the central nervous system (CNS).

Investigating the Relationship the Severity of Coronary Artery Disease with Serum Levels of Vitamin D in Men after Eliminating the Effect of Diet

2020 ◽  
Vol 16 (4) ◽  
pp. 508-513
Author(s):  
Farshad K. Birgani ◽  
Majid M. Shahi ◽  
Bahman Cheraghian ◽  
Habib Haybar
Keyword(s):  
Coronary Artery Disease ◽  
Vitamin D ◽  
Coronary Artery ◽  
Serum Vitamin ◽  
Serum Levels ◽  
Serum Vitamin D ◽  
Vitamin D Levels ◽  
Significant Difference ◽  
Artery Disease ◽  
The Relationship

Background: Coronary artery disease (CAD) is one of the most common cardiovascular diseases that can lead to mortality, inability, and lower productivity levels. Objective: The aim of this study was to determine the relationship between serum vitamin D level and cardiovascular risk factors and the severity of CAD after determining and eliminating the confounding effects of dietary patterns in male patients undergoing angiography. Methods: This descriptive-analytic study was carried out on 132 men undergoing angiography during 2017 and 2018. To this end, food frequency questionnaire (FFQ) and physical activity questionnaire (PAQ) were completed for the patients. Fasting blood sugar (FBS), triglyceride, total cholesterol, HDL-C, LDL-C and vitamin D levels were also investigated. Results: Serum vitamin D levels significantly decreased with an increase in CAD severity (p=0.001). Also, low serum levels led to the highest severity of CAD (p=0.005). However, there was no significant difference between patients with vitamin D deficiency with different degrees of CAD (p=0.084). Also, the highest percentage of individuals with normal serum levels of vitamin D was observed in the group without any blocked blood arteries (normal) (p=0.023). Conclusion: This study shows an inverse relationship between serum 25(OH) D level and the severity of CAD. Our data show that vitamin D plays an important role in preventing CAD. These findings could help design prospective studies and clinical trials on a wider scale to investigate the effects of vitamin D interventions in preventing the development of CAD.

scholarly journals Association between serum vitamin D levels and cardiorespiratory fitness in the adult population of the USA

2018 ◽  
Vol 26 (7) ◽  
pp. 750-755 ◽  
Author(s):  
Amr Marawan ◽  
Nargiza Kurbanova ◽  
Rehan Qayyum
Keyword(s):  
Vitamin D ◽  
Linear Regression ◽  
Cardiorespiratory Fitness ◽  
Adult Population ◽  
Serum Vitamin ◽  
Nutrition Survey ◽  
Serum Vitamin D ◽  
Vitamin D Levels ◽  
Significant Difference ◽  
The Relationship

Aims The small number of studies that have investigated the relationship between serum vitamin D levels and cardiorespiratory fitness (CRF) have reported conflicting results. We investigated the association between vitamin D levels and CRF in a representative sample of the US population using data from the National Health and Nutrition Survey (2001–2004). Methods We included participants between the ages of 20 and 49 years and excluded those with vitamin D levels at the 5% extremes of the distribution. We used survey-weighted linear regression without and with adjustment for age, sex, race, body mass index, hypertension, diabetes, smoking, C-reactive protein, hemoglobin, and glomerular filtration rate to examine the relationship between the maximal oxygen consumption (VO2 max) (as a surrogate for CRF) and vitamin D levels. Results Of the 1995 participants, 45.2% were women, 49.1% were white, 13% had hypertension, and 4% had diabetes. The mean ± SD age was 33 ± 8.6 years, with a mean ± SD vitamin D level of 58 ± 5.3 nmol/L and a mean ± SD VO2 max of 40 ± 9.7 ml/kg/min. Participants in the highest quartile of vitamin D levels had a significantly higher CRF than participants in the lowest quartile (difference 4.3, 95% confidence interval (CI) 3.0–5.5; P < 0.001). After adjustment for potential confounders, the difference between the highest and lowest vitamin D quartiles remained significant (difference 2.9, 95% CI 1.6–4.1; P < 0.001). In unadjusted and adjusted linear regression, each 10 nmol/L increase in vitamin D level was associated with a significant increase in VO2 max (β = 0.78 ml/kg/min, 95% CI 0.55–1.01; P < 0.001; β = 0.51 ml/kg/min, 95% CI 0.23–0.79; P = 0.001, respectively). Conclusions We found an independent and robust association between serum vitamin D levels and CRF, but our results need to be validated with clinical trials examining the effect of vitamin D supplementation on CRF.

scholarly journals Vitamin D Levels in Children With Recurrent Aphthous Stomatitis

2019 ◽  
Vol 99 (7) ◽  
pp. 460-463 ◽  
Author(s):  
Burçin Nalbantoğlu ◽  
Ayşin Nalbantoğlu
Keyword(s):  
Vitamin D ◽  
Serum Vitamin ◽  
Recurrent Aphthous Stomatitis ◽  
Aphthous Stomatitis ◽  
Control Group ◽  
Healthy Controls ◽  
Vitamin D Status ◽  
Serum Vitamin D ◽  
Vitamin D Levels ◽  
Significant Difference

Background: Recurrent aphthous stomatitis is one of the most prevalent oral mucosa diseases and the etiology is unclear. As a potent anti-inflammatory and immunomodulating agent, vitamin D can significantly affect oral cavity homeostasis. However, to the best of our knowledge, no study has been conducted in pediatric population on the potential role of vitamin D in recurrent aphthous stomatitis to date. The aim of the present study is to determine the vitamin D status in recurrent aphthous stomatitis in children. Methods: This study is conducted retrospectively. Seventy-two patients with minor recurrent aphthous stomatitis and 70 age-matched healthy controls included in the study. 25-Hydroxyvitamin D levels were measured in all patients using enzyme immunoassay. Results: Serum vitamin D levels were 16.4 (8.6) ng/mL in patient group and 23.1 (11.5) ng/mL in healthy controls. There was a statistically significant difference between the groups in terms of serum vitamin D levels ( P = .002). There was no significant correlation between serum vitamin D levels and the severity of the recurrent aphthous stomatitis ( r = 0.54, P = .76). Conclusions: Our study showed a significant difference in vitamin D levels between patients with recurrent aphthous stomatitis and the healthy control group. We also found no correlation between vitamin D status and the severity of the disease.

scholarly journals Association between vitamin d levels and adolescent idiopathic scoliosis

2014 ◽  
Vol 13 (4) ◽  
pp. 275-278 ◽  
Author(s):  
Rodrigo Martins Borges Ferreira Batista ◽  
Délio Eulálio Martins ◽  
Marcelo Wajchenberg ◽  
Marise Lazaretti ◽  
Eduardo Barros Puertas ◽  
...  
Keyword(s):  
Vitamin D ◽  
Serum Vitamin ◽  
Control Group ◽  
Genetic Syndromes ◽  
Hydroxyvitamin D ◽  
Serum Vitamin D ◽  
Vitamin D Levels ◽  
Significant Difference ◽  
Group 2 ◽  
Group 1

Objective: To compare the levels of 25-hydroxyvitamin D in patients with AIS and a control group. Methods: The patients were recruited from the outpatient clinic of our institution during the year of 2013. Children diagnosed with scoliosis before 10 or after 18 years of age, and those suffering from neurological or muscular disorders, congenital malformations or genetic syndromes were excluded. The 25-OHD levels were determined by a fully automated electrochemiluminescence test. The appropriate level of 25-OHD was defined as greater than 30 ng/mL. The results were compared to a group of healthy individuals. Results: In group 1 (control) 63,3% showed abnormal vitamin D levels, while 91% of patients with AIS presented a low level of vitamin D. The mean BMI was 19.6 kg/m2 for controls and 20.3 kg/m2 for group 2. Statistical analysis showed significant difference (p&lt;0.0001) between the levels of vitamin D. The average and minimum levels of vitamin D were respectively 27 and 13.6 ng/mL for group 1 and 18.8 and 3.13 ng/mL for AIS group. Conclusions: Patients with AIS had statistically significant lower levels of 25-OHD than healthy patients. Further research should be conducted to investigate the actual impact of serum vitamin D levels on the pathophysiology of AIS.

scholarly journals Association between Vitamin D and Candida-Associated Denture Stomatitis

2020 ◽  
Vol 8 (4) ◽  
pp. 121
Author(s):  
Miranda Muhvić-Urek ◽  
Ema Saltović ◽  
Alen Braut ◽  
Daniela Kovačević Pavičić
Keyword(s):  
Vitamin D ◽  
Serum Vitamin ◽  
Hypovitaminosis D ◽  
Complete Denture ◽  
Host Susceptibility ◽  
Control Group ◽  
Denture Stomatitis ◽  
Serum Vitamin D ◽  
Vitamin D Levels ◽  
Significant Difference

Candida-associated denture stomatitis (CADS) is a fungal infection affecting 60–65% of denture wearers. Its etiology is complex and multifactorial and often associated with host immunodeficiency. Evidence exists that vitamin D has potential immunomodulatory and anti-inflammatory effects. The aim of this case–control study was to assess the association between vitamin D levels and CADS. The study included 32 complete denture wearers with CADS and 32 sex- and age-matched complete denture wearers without CADS. The patients were clinically examined, and the severity of denture stomatitis was assessed according to Newton’s classification scale. The serum vitamin D level was determined via the use of an electrochemiluminescence assay. The vitamin D level in the CADS group and control group was 54.68 ± 17.07 and 56.82 ± 17.75 nmol/L, respectively. There was no significant difference between the groups (p = 0.622). Univariate logistic regression analysis showed that the presence of CADS was not associated with hypovitaminosis D (odds ratio (OR) = 1.44; 95% confidence interval (CI) = 0.37–5.54). It can be concluded that vitamin D is not associated with CADS and does not play a significant role in host susceptibility to CADS. This finding suggests that vitamin D screening is not indicated routinely in patients with Candida-associated denture stomatitis.

scholarly journals The Association Between Serum Vitamin D Levels and Benign Paroxysmal Positional Vertigo

2021 ◽  
pp. 014556132110085
Author(s):  
Kanokporn Sarsitthithum ◽  
Tosapohn Wisupagan ◽  
Sivaporn Kiatthanabumrung ◽  
Chanchai Jariengprasert
Keyword(s):  
Vitamin D ◽  
Benign Paroxysmal Positional Vertigo ◽  
Serum Vitamin ◽  
Control Group ◽  
P Value ◽  
Serum Vitamin D ◽  
Positional Vertigo ◽  
Vitamin D Levels ◽  
Significant Difference ◽  
Paroxysmal Positional Vertigo

Objective: This study aimed to evaluate the association between serum vitamin D levels and benign paroxysmal positional vertigo (BPPV). Participants and Methods: This prospective study consisted of 137 participants. There were 69 participants in the BPPV group compared with 68 healthy participants. Blood samples from both groups were collected from all participants to assess serum vitamin D levels. Results: No significant difference in demographic data between BPPV and control groups. The results showed that the mean serum vitamin D levels in the BPPV group was lower than that of the control group ( P value = .001). Among BPPV participants, there was no statistically significant difference between mean serum vitamin D levels of participants with recurrent BPPV, and that of newly diagnosed BPPV participants ( P value = .313). Conclusion: A statistically significant association between lower mean serum vitamin D levels in the BPPV group compared with that of the control group. Therefore, low serum vitamin D levels may be one of the risk factors for BPPV.

The Association of Serum Vitamin D Levels with Pseudoexfoliation Glaucoma/Syndrome

2019 ◽  
Vol 19 (2) ◽  
pp. 166-170 ◽  
Author(s):  
Seyhan Dikci ◽  
Emrah Öztürk ◽  
Penpe G. Fırat ◽  
Turgut Yılmaz ◽  
Mehmet Ç. Taşkapan ◽  
...  
Keyword(s):  
Vitamin D ◽  
Serum Vitamin ◽  
Glaucoma Surgery ◽  
Control Group ◽  
Serum Vitamin D ◽  
Vitamin D Levels ◽  
Significant Difference ◽  
The Mean ◽  
And Control ◽  
Glaucoma Group

Objective: To investigate whether serum vitamin D levels have an effect on pseudoexfoliation (PEX) glaucoma/syndrome development and on the control of glaucoma in these cases. </P><P> Method: A total of 31 cases with PEX glaucoma, 34 cases with the PEX syndrome and 43 control subjects of similar age and sex were included in the study. Vitamin D levels were compared between the groups and also between the cases where glaucoma surgery was performed or not. Results: PEX glaucoma group consisted of 17 males and 14 females, PEX syndrome group of 27 males and 7 females, and the control group of 27 males and 16 females. The mean age was 70.9±8.9 years, 72.1±7.3 years, and 67.9±9.1 years in PEX glaucoma, syndrome and control group, respectively. Mean vitamin D levels were 9.4±7.7 ng/mL, 7.9±6,1 ng/mL, 11.5±14.2 ng/mL in PEX glaucoma, syndrome and control group, respectively (p>0.05). The mean serum vitamin D level was 8.04±4.7 ng/mL in those who underwent glaucoma surgery and 10.1±8.7 ng/mL in those who didn't undergo glaucoma surgery in PEX glaucoma group (p>0.05). No difference was found between the PEX glaucoma subgroups in terms of the mean deviation when classified according to vitamin D levels (<10 ng/mL, ≥10 ng/mL) (p>0.05). Conclusion: Although we found no statistically significant difference between the PEX syndrome/ glaucoma, and control group in terms of serum vitamin D levels, serum vitamin D levels were lower in PEX syndrome and glaucoma group than control group. Our results indicate that serum vitamin D levels have no effect on the development of PEX glaucoma/syndrome or the control of the disorder in cases with PEX glaucoma. However, these results need to be supported with further studies on a larger number of patients and with longer follow-up.

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