PMID- 11254667 OWN - NLM STAT- MEDLINE DCOM- 20010419 LR - 20240314 IS - 0021-9738 (Print) IS - 0021-9738 (Linking) VI - 107 IP - 6 DP - 2001 Mar TI - Hyperhomocysteinemia enhances vascular inflammation and accelerates atherosclerosis in a murine model. PG - 675-83 AB - Although hyperhomocysteinemia (HHcy) is a well-known risk factor for the development of cardiovascular disease, the underlying molecular mechanisms are not fully elucidated. Here we show that induction of HHcy in apoE-null mice by a diet enriched in methionine but depleted in folate and vitamins B6 and B12 increased atherosclerotic lesion area and complexity, and enhanced expression of receptor for advanced glycation end products (RAGE), VCAM-1, tissue factor, and MMP-9 in the vasculature. These homocysteine-mediated (HC-mediated) effects were significantly suppressed, in parallel with decreased levels of plasma HC, upon dietary supplementation with folate and vitamins B6/B12. These findings implicate HHcy in atherosclerotic plaque progression and stability, and they suggest that dietary enrichment in vitamins essential for the metabolism of HC may impart protective effects in the vasculature. FAU - Hofmann, M A AU - Hofmann MA AD - College of Physicians and Surgeons, Columbia University, 630 W. 168th Street, P&S 17-501, New York, NY 10032, USA. mah81@columbia.edu FAU - Lalla, E AU - Lalla E FAU - Lu, Y AU - Lu Y FAU - Gleason, M R AU - Gleason MR FAU - Wolf, B M AU - Wolf BM FAU - Tanji, N AU - Tanji N FAU - Ferran, L J Jr AU - Ferran LJ Jr FAU - Kohl, B AU - Kohl B FAU - Rao, V AU - Rao V FAU - Kisiel, W AU - Kisiel W FAU - Stern, D M AU - Stern DM FAU - Schmidt, A M AU - Schmidt AM LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Research Support, U.S. Gov't, P.H.S. PL - United States TA - J Clin Invest JT - The Journal of clinical investigation JID - 7802877 RN - 0 (Apolipoproteins E) RN - 0 (Receptor for Advanced Glycation End Products) RN - 0 (Receptors, Immunologic) RN - 0 (Vascular Cell Adhesion Molecule-1) RN - 9035-58-9 (Thromboplastin) RN - 935E97BOY8 (Folic Acid) RN - AE28F7PNPL (Methionine) RN - EC 3.4.24.35 (Matrix Metalloproteinase 9) RN - KV2JZ1BI6Z (Pyridoxine) RN - P6YC3EG204 (Vitamin B 12) SB - IM CIN - J Clin Invest. 2001 Mar;107(6):663-4. PMID: 11254663 MH - Animals MH - Apolipoproteins E/deficiency/genetics MH - Arteriosclerosis/*etiology/metabolism/pathology MH - Cells, Cultured MH - Diet MH - Disease Models, Animal MH - Folic Acid/administration & dosage MH - Humans MH - Hyperhomocysteinemia/*complications/metabolism MH - Immunohistochemistry MH - Male MH - Matrix Metalloproteinase 9/metabolism MH - Methionine/administration & dosage MH - Mice MH - Mice, Inbred C57BL MH - Mice, Knockout MH - Pyridoxine/administration & dosage MH - Receptor for Advanced Glycation End Products MH - Receptors, Immunologic/metabolism MH - Thromboplastin/metabolism MH - Vascular Cell Adhesion Molecule-1/metabolism MH - Vasculitis/*etiology/metabolism/pathology MH - Vitamin B 12/administration & dosage PMC - PMC208940 EDAT- 2001/03/20 10:00 MHDA- 2001/04/21 10:01 PMCR- 2001/03/15 CRDT- 2001/03/20 10:00 PHST- 2001/03/20 10:00 [pubmed] PHST- 2001/04/21 10:01 [medline] PHST- 2001/03/20 10:00 [entrez] PHST- 2001/03/15 00:00 [pmc-release] AID - 10588 [pii] AID - 10.1172/JCI10588 [doi] PST - ppublish SO - J Clin Invest. 2001 Mar;107(6):675-83. doi: 10.1172/JCI10588.