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New research findings appearing in the January Journal of Lipid Research indicate that compounds called oxysterols are not present in any significant amount in multiple sclerosis patients, contradicting a previous study that suggested that some of these cholesterol metabolites were associated with MS and could be used as diagnostic tools in the clinic.

Oxysterols are somewhat controversial in science; while some laboratory experiments suggest these steroid molecules may be biologically important, they are present in only trace amounts in the blood, and studies in living animals or humans have not convincingly proven a definitive role.

Therefore, there was great interest when a study published last year in the journal Nature Immunology reported that two oxysterols, known as 15HC and 15KC, were increased more than three-fold in the blood of MS patients, and that these oxysterols could be associated with the development of the disease.

Spurred by those findings, Ingemar Björkhem and colleagues at Sweden's prestigious Karolinska Institutet decided to perform their own analysis of blood samples using a combination of gas chromatography and mass spectrometry, which vaporizes the samples and separates the component parts to allow for a thorough separation of all molecules; thus they could identify 15HC and 15KC levels even at low concentrations...........Read More - http://www.msrc.co.uk/index.cfm/fuseact ... ageid/1092

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