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Region Hovedstaden - en del af Københavns Universitetshospital
Udgivet

Associations between advanced glycation endproducts and matrix metalloproteinases and its inhibitor in individuals with type 1 diabetes

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AIMS: Advanced glycation endproducts (AGEs) and altered extracellular matrix remodeling by matrix metalloproteinases (MMPs) and tissue inhibitor of metalloproteinase (TIMP) are associated with vascular complications in type 1 diabetes. Experimental studies have shown that AGEs regulate the production of MMPs and/or TIMP-1. Therefore, we investigated associations between specific AGEs and MMP-1, -2, -3, -9, and -10, and TIMP-1 in individuals with type 1 diabetes.

METHODS: In 670 type 1 diabetic individuals we determined serum levels of protein-bound AGEs Nε-(carboxymethyl)lysine (CML), Nε-(carboxyethyl)lysine (CEL), 5-hydro-5-methylimidazolone (MG-H1) and pentosidine, and MMP-1, -2, -3, -9, and -10, and TIMP-1. We performed linear regression analyses to investigate associations between AGEs and markers of the MMP-TIMP system. Analyses were adjusted for age, sex, HbA1c and duration of diabetes, and additionally for other potential confounders and presence of vascular complication.

RESULTS: After full adjustment, levels of CML were positively associated with levels of MMP-2 and inversely with MMP-9. CEL was positively associated with MMP-3 and TIMP-1. MG-H1 was only associated with TIMP-1, whereas pentosidine was not associated with MMPs or TIMP-1.

CONCLUSIONS: We showed independent associations between several AGEs and markers of the MMP-TIMP system, which indicate specific AGE-MMP/TIMP-1 interactions potentially contributing to vascular complications in patients with type 1 diabetes.

OriginalsprogEngelsk
TidsskriftJournal of Diabetes and its Complications
Vol/bind32
Udgave nummer3
Sider (fra-til)325-329
Antal sider4
ISSN1056-8727
DOI
StatusUdgivet - 1 mar. 2018

ID: 52699478