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A Journal on Internal Medicine
Indexed/Abstracted in: Current Contents/Clinical Medicine, EMBASE, PubMed/MEDLINE, Science Citation Index Expanded (SciSearch), Scopus
Impact Factor 1,236
Minerva Medica 2012 August;103(4):313-21
Potential role of OPG/RANKL system and FokI genotypes in pathogenesis and clinical manifestations in multiple sclerosis
Mirzaei K. 1, Ahmadi S. 1, Hossein-Nezhad A. 2, Mokhtari F. 1 ✉
1 Tehran University of Medical Sciences, Tehran, Iran;
2 Department of Medicine, Section of Endocrinology, Nutrition and Diabetes,, Vitamin D, Skin and Bone Research Laboratory, Boston University Medical Center, Boston, USA
AIM:The OPG/RANKL has identified role in immune system via T-cell-activating cytokines. Considering that immune mechanisms play a key role in the pathogenesis of MS, OPG/RANKL might be importance in the underlying mechanism of the disease. The aim of this study is to measure plasma levels of OPG and RANKL as well as to analyze VDR FokI polymorphism (rs2228570) in MS patients and healthy individuals to detect any potential correlation.
METHODS: We included a total of 397 participants, 105 of them suffering from two different types of MS, namely relapsing and remitting and secondary progressive multiple sclerosis. VDR genotyping was performed using PCR-RFLP method.
RESULTS:The results showed differences in the plasma levels of OPG and RANKL between patients and the healthy control group that were statistically significant. We found higher plasma levels of OPG and lower RANKL concentrations in RRMS patients in comparison with SPMS types of the disease. We detected higher plasma levels of OPG and lower levels of RANKL in subjects with F allele compared to those with f allele in healthy subjects. However, contradicting results were observed when patients with MS were analyzed. We detected lower plasma levels of OPG and higher RANKL concentrations in patients with F allele in comparison with those with f allele.
CONCLUSION: This might define a role for FokI polymorphism and OPG/RANKL system in the pathogenesis and progression of multiple sclerosis with further practical applications.