Vitamin D and axonal injury in multiple sclerosis

2015 ◽  
Vol 22 (8) ◽  
pp. 1027-1031 ◽  
Author(s):  
L Sandberg ◽  
M Biström ◽  
J Salzer ◽  
M Vågberg ◽  
A Svenningsson ◽  
...  
Keyword(s):  
Multiple Sclerosis ◽  
Axonal Injury ◽  
High Serum ◽  
University Hospital ◽  
Inverse Association ◽  
Blood Draw ◽  
Neurofilament Light ◽  
Hydroxyvitamin D ◽  
25 Hydroxyvitamin D ◽  
Dose Response Effect

Background: Previous studies in patients with multiple sclerosis (MS) have shown an association between high serum 25-hydroxyvitamin D (25[OH]D) levels and decreased inflammatory activity. Objective: The purpose of this study was to examine the association between 25(OH)D levels and axonal injury in MS. Cerebrospinal fluid neurofilament light (CSF-NFL) was used as a marker for axonal injury. Methods: Patients were identified through clinical practice at the Department of Neurology in Umeå University Hospital, Sweden. Blood draw, magnetic resonance imaging, scoring of disability and lumbar puncture were performed at inclusion in 153 patients, and also at median 12 months follow-up in 87 patients. For analyses of serum 25(OH)D levels and CSF-NFL, enzyme-linked immunosorbent assays were used. Results: There was an inverse association between serum 25(OH)D and CSF-NFL levels in categorical (dichotomized at 75 or 100 nmol/l) analyses. A dose-response effect for 25(OH)D levels on CSF-NFL levels ( p for trend=0.034) was also present. Serum 25(OH)D levels above 100 nmol/l were associated with lower CSF-NFL levels independently of ongoing MS treatment. Conclusion: High 25(OH)D levels are associated with decreased axonal injury in MS.

High serum 25-hydroxyvitamin D levels do not retard postmenopausal bone loss in Japanese women: the Yokogoshi study

2013 ◽  
Vol 8 (1-2) ◽  
Author(s):  
Kaori Kitamura ◽  
Kazutoshi Nakamura ◽  
Toshiko Saito ◽  
Ryosaku Kobayashi ◽  
Rieko Oshiki ◽  
...  
Keyword(s):  
Bone Loss ◽  
Japanese Women ◽  
High Serum ◽  
Postmenopausal Bone Loss ◽  
Hydroxyvitamin D ◽  
25 Hydroxyvitamin D

scholarly journals Vitamin D and Risk for Vitamin A Intoxication in an 18-Month-Old Boy

2016 ◽  
Vol 2016 ◽  
pp. 1-3
Author(s):  
Valentina Talarico ◽  
Massimo Barreca ◽  
Rossella Galiano ◽  
Maria Concetta Galati ◽  
Giuseppe Raiola
Keyword(s):  
Vitamin D ◽  
Vitamin A ◽  
High Serum ◽  
Renal Ultrasound ◽  
Once Daily ◽  
Hydroxyvitamin D ◽  
Vitamin D Intoxication ◽  
Intravenous Hydration ◽  
25 Hydroxyvitamin D ◽  
Low Levels

An 18-month-old boy presented with abdominal pain, vomiting, diarrhea, and poor appetite for 6 days. He had been given a multivitamin preparation once daily, containing 50.000 IU of vitamin D and 10.000 IU of vitamin A for a wide anterior fontanelle for about three months. He presented with hypercalcemia, low levels of parathyroid hormone (PTH), and very high serum 25-hydroxyvitamin D (25-OHD) levels. Renal ultrasound showed nephrocalcinosis. He did not have sign or symptom of vitamin A intoxication. Patient was successfully treated with intravenous hydration, furosemide, and prednisolone. With treatment, serum calcium returned rapidly to the normal range and serum 25-OHD levels were reduced progressively. In conclusion the diagnosis of vitamin D deficiency rickets without checking 25-OHD levels may cause redundant treatment that leads to vitamin D intoxication (VDI).

scholarly journals Relation of serum 25-hydroxyvitamin D status with skeletal muscle mass by sex and age group among Korean adults

2015 ◽  
Vol 114 (11) ◽  
pp. 1838-1844 ◽  
Author(s):  
Min Jung Ko ◽  
Sungha Yun ◽  
Kyungwon Oh ◽  
Kirang Kim
Keyword(s):  
Skeletal Muscle ◽  
Muscle Mass ◽  
Skeletal Muscle Mass ◽  
Age Groups ◽  
Mean Value ◽  
High Serum ◽  
Cross Sectional ◽  
Mean Values ◽  
Hydroxyvitamin D ◽  
25 Hydroxyvitamin D

AbstractThe objective of this study was to examine whether high serum 25-hydroxyvitamin D (25(OH)D) concentration was associated with high skeletal muscle mass, taking into account the effects of sex and age among the participants of the Korea National Health and Nutrition Examination Survey (KNHANES) aged 40 years or older. This was a cross-sectional study using data from the 2009 to 2010 KNHANES; a total of 8406 subjects (3671 men and 4735 women) were included. The appendicular skeletal muscle mass index (ASMMI, kg/m2) was estimated to measure the skeletal muscle mass. Hypovitaminosis was classified when the level of serum 25(OH)D was <20 ng/ml. The general linear model adjusted for confounding factors was used to determine differences in means of ASMMI by 25(OH)D status. The mean values of ASMMI were higher for men when compared with women. Women had a greater proportion of hypovitaminosis (71·1 %) compared with men (53·2 %). After adjusting for multiple factors, men were seen to have significant differences in ASMMI based on 25(OH)D status regardless of age, showing a lower mean value of ASSMI in those with hypovitaminosis. However, there was no difference in ASMMI by 25(OH)D status among women in both younger and older age groups. In conclusion, we found that there might be a positive relationship between 25(OH)D and skeletal muscle mass in men, indicating that interventions to improve 25(OH)D levels that are aimed at increasing muscle mass could be beneficial for men with more rapid decreased rate of skeletal muscle mass.

Study of the possible link of 25-hydroxyvitamin D with Epstein-Barr virus and human herpesvirus 6 in patients with multiple sclerosis

2018 ◽  
Vol 25 (12) ◽  
pp. 1446-1453 ◽  
Author(s):  
S. Pérez-Pérez ◽  
M. I. Domínguez-Mozo ◽  
M. Á. García-Martínez ◽  
Y. Aladro ◽  
M. Martínez-Ginés ◽  
...  
Keyword(s):  
Multiple Sclerosis ◽  
Epstein Barr Virus ◽  
Human Herpesvirus ◽  
Human Herpesvirus 6 ◽  
Hydroxyvitamin D ◽  
Barr Virus ◽  
25 Hydroxyvitamin D ◽  
Herpesvirus 6 ◽  
Epstein Barr

scholarly journals Tumor Autonomous Effects of Vitamin D Deficiency Promote Breast Cancer Metastasis

Endocrinology ◽  
2016 ◽  
Vol 157 (4) ◽  
pp. 1341-1347 ◽  
Author(s):  
Jasmaine D. Williams ◽  
Abhishek Aggarwal ◽  
Srilatha Swami ◽  
Aruna V. Krishnan ◽  
Lijuan Ji ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Vitamin D ◽  
Vitamin D Deficiency ◽  
Cancer Metastasis ◽  
Receptor Expression ◽  
Inverse Association ◽  
Primary Tumors ◽  
Hydroxyvitamin D ◽  
25 Hydroxyvitamin D ◽  
Vitamin D Signaling

Abstract Patients with breast cancer (BCa) frequently have preexisting vitamin D deficiency (low serum 25-hydroxyvitamin D) when their cancer develops. A number of epidemiological studies show an inverse association between BCa risk and vitamin D status in humans, although some studies have failed to find an association. In addition, several studies have reported that BCa patients with vitamin D deficiency have a more aggressive molecular phenotype and worse prognostic indicators. However, it is unknown whether this association is mechanistically causative and, if so, whether it results from systemic or tumor autonomous effects of vitamin D signaling. We found that ablation of vitamin D receptor expression within BCa cells accelerates primary tumor growth and enables the development of metastases, demonstrating a tumor autonomous effect of vitamin D signaling to suppress BCa metastases. We show that vitamin D signaling inhibits the expression of the tumor progression gene Id1, and this pathway is abrogated in vitamin D deficiency in vivo in 2 murine models of BCa. These findings are relevant to humans, because we discovered that the mechanism of VDR regulation of Inhibitor of differentiation 1 (ID1) is conserved in human BCa cells, and there is a negative correlation between serum 25-hydroxyvitamin D levels and the level of ID1 in primary tumors from patients with BCa.

Dose–response effect of ergocalciferol therapy on serum 25-hydroxyvitamin D concentration during critical illness

Nutrition ◽  
2015 ◽  
Vol 31 (10) ◽  
pp. 1219-1223 ◽  
Author(s):  
Roland N. Dickerson ◽  
Scott C. Berry ◽  
Jamie D. Ziebarth ◽  
Joseph M. Swanson ◽  
George O. Maish ◽  
...  
Keyword(s):  
Critical Illness ◽  
Dose Response ◽  
Response Effect ◽  
Hydroxyvitamin D ◽  
25 Hydroxyvitamin D ◽  
Dose Response Effect

25-Hydroxyvitamin D in cerebrospinal fluid during relapse and remission of multiple sclerosis

2009 ◽  
Vol 15 (11) ◽  
pp. 1280-1285 ◽  
Author(s):  
Trygve Holmøy ◽  
Stine Marit Moen ◽  
Thomas A Gundersen ◽  
Michael F Holick ◽  
Enrico Fainardi ◽  
...  
Keyword(s):  
Multiple Sclerosis ◽  
Mass Spectrometry ◽  
Cerebrospinal Fluid ◽  
Neurological Diseases ◽  
Hypovitaminosis D ◽  
Serum Levels ◽  
Liquid Chromatography Mass Spectrometry ◽  
Hydroxyvitamin D ◽  
Relapsing Remitting ◽  
25 Hydroxyvitamin D

Hypovitaminosis D may play a role in multiple sclerosis (MS), but little is known about intrathecal vitamin D. 25-Hydroxyvitamin D was measured in cerebrospinal fluid and sera from 36 patients with relapsing-remitting MS, 20 patients with other inflammatory neurological diseases and 18 patients with non-inflammatory neurological diseases with liquid chromatography-mass spectrometry. There were no significant differences in cerebrospinal fluid concentrations of 25-hydroxyvitamin D, but the cerebrospinal fluid:serum ratio was significantly lower in MS compared with other inflammatory neurological diseases (p=0.0012) and non-inflammatory neurological diseases (p=0.041) patients. The concentrations of 25-hydroxyvitamin D in cerebrospinal fluid and serum were positively correlated and their ratio was similar to that of albumin. Neither the concentrations of 25-hydroxyvitamin D in cerebrospinal fluid or serum nor their ratio were associated with the presence of relapses or gadolinium-enhanced lesions. These results do not support that 25-hydroxyvitamin D is actively transported to the cerebrospinal fluid, or that the cerebrospinal fluid or serum levels or their ratio exert a major impact on MS activity.

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