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Member
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Join Date: Jan 2008
Location: Maryland outside WASH DC
Posts: 258
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Member
Join Date: Jan 2008
Location: Maryland outside WASH DC
Posts: 258
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If one does a search on "multiple sclerosis mmp-9" the connection will be revealed.
I have the BEST presentation of this in a study in my Web Storage -
http://home.ix.netcom.com/~jdalton/Yongrev.pdf SEE FIGURE 2 page 505 and MS narrative
The Vit d3 connection and MMP-9s.
jackD
Quote:
1: QJM 2002 Dec;95(12):787-796
Circulating MMP9, vitamin D and variation in the TIMP-1 response with VDR
genotype: mechanisms for inflammatory damage in chronic disorders?
Timms PM, Mannan N, Hitman GA, Noonan K, Mills PG, Syndercombe-Court D,
Aganna E, Price CP, Boucher(2) BJ.
Departments of. Clinical Biochemistry, Diabetes and Metabolic Medicine and.
Haematology, Barts and The London, Queen Mary's School of Medicine and
Dentistry, University of London and. Department of Cardiology, 'Barts and
The London' NHS Trust, London, UK.
BACKGROUND:Vitamin-D deficiency and vitamin-D receptor genotype (VDR) are
risk factors for several disorders with inflammatory components, including
coronary heart disease (CHD) and diabetes, though the mechanisms involved
are unclear. Aim: To examine the hypothesis that vitamin D status modulates
the matrix metalloproteinase (MMP) system in a population with a high
prevalence of vitamin D deficiency, a situation affecting susceptibility to
CHD and diabetes.
DESIGN:
Prospective cross-sectional, interventional and embedded studies. METHODS:
Circulating MMP2,9, the inhibitor TIMP-1 and C-reactive protein (CRP) were
measured during studies of vitamin-D deficiency as a risk factor for type 2
diabetes and CHD in 171 healthy British Bangladeshi adults, free of known
diabetes or major illness. Vitamin D status, VDR genotype, body-build, blood
pressure, lipid and insulin profiles, glucose tolerance, fibrinogen, PAI-1,
folate and homocysteine were measured. Vitamin-D-deficient subjects were
re-assessed after 1 years' supplementation. MMP, TIMP-1 and CRP levels were
measured in 41 subjects halfway through 5-year follow-up. Independent
determinants of circulating concentrations of MMP9, TIMP-1 and CRP were
assessed by multiple regression analysis.
RESULTS: Vitamin D status was the sole determinant of circulating MMP9
(inversely) and an independent determinant of CRP (inversely). Determinants
of TIMP-1 were MMP9, systolic blood-pressure (directly) and VDR genotype
(TaqI). Significant reductions in MMP9 (-68%), TIMP-1 (-38%) and CRP (-23%)
concentrations followed vitamin-D supplementation.
DISCUSSION: Vitamin-D
insufficiency is associated with increased circulating MMP2,9 and CRP,
correctable by supplementation. This finding provides a possible mechanism
for tissue damage in chronic inflammatory conditions, including CHD and
diabetes.
PMID: 12454321
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Last edited by jackD; 09-09-2008 at 02:19 AM.
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