Vitamin B12, folate, and homocysteine levels and multiple sclerosis: A meta-analysis.
Mult Scler Relat Disord
; 17: 190-197, 2017 Oct.
Article
en En
| MEDLINE
| ID: mdl-29055456
ABSTRACT
BACKGROUND:
Multiple sclerosis (MS) is a demyelinating and disabling inflammatory disease of the central nervous system. Several factors contribute to MS pathogenesis including genetic-environmental interactions. Case-control studies suggest that there might be associations between MS and homocysteine (Hcy), vitamin B12, and folate blood levels.AIM:
To meta-analyze all available data describing associations between MS and serum or plasma Hcy, vitamin B12, and folate levels.METHODS:
The PubMed, MEDLINE, and EMBASE databases were searched for eligible case-control studies published until June 2017. After data extraction, separate analyses using mainly random-effects models were conducted to test for associations between MS and vitamin B12, Hcy, or folate blood levels.RESULTS:
Twelve, 12, and 9 studies met the inclusion criteria for meta-analysis of MS and Hcy, vitamin B12, and folate levels, respectively. The standardized mean difference (SMD) between MS patients and controls was statistically significant for Hcy (SMD 0.70, 95% CI 0.06, 1.34). Stratification according to clinical pattern did not reveal significant differences between relapsing-remitting MS patients and controls (SMD 0.30, 95% CI -0.93, 1.54) or between secondary progressive MS patients and controls (SMD 0.12, 95% CI -1.65, 1.90). There were no significant differences in SMD between MS patients and healthy individuals for vitamin B12 (SMD -0.09, 95% CI -0.29, 0.10) or folate (SMD -0.06, 95% CI -0.17, 0.05).CONCLUSION:
MS patients tend to have elevated Hcy blood levels compared to healthy controls. Hcy may contribute to the pathogenesis of the disease.Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Vitamina B 12
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Ácido Fólico
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Homocisteína
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Esclerosis Múltiple
Tipo de estudio:
Observational_studies
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Prognostic_studies
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Risk_factors_studies
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Systematic_reviews
Límite:
Humans
Idioma:
En
Revista:
Mult Scler Relat Disord
Año:
2017
Tipo del documento:
Article