PMID- 16178442 OWN - NLM STAT- MEDLINE DCOM- 20060428 LR - 20131121 IS - 1000-503X (Print) IS - 1000-503X (Linking) VI - 27 IP - 4 DP - 2005 Aug TI - [Folate reduces monocyte chemoattractant protein-1 expression in rats with hyperhomocysteinemia]. PG - 470-4 AB - OBJECTIVE: To investigate effects of supplementation of folate on the expression of monocyte chemoattractant protein-1 (MCP-1) in aortic endothelium and release from peripheral blood mononuclear cells (PBMC) in rats with hyperhomocysteinemia induced by ingestion of excess methionine. METHODS: Thirty male SD rats were randomly divided into 3 groups (n = 10 for each group): control group (Control), high homocysteinemia group (Hhcy), and folate supplementation group (FA). They were fed with nomal diet, normal diet enriched by 1.7% methionine, and normal diet plus 1.7% methionine and 0.006% folate, respectively, for 45 days. The levels of total plasma homocysteine (Thcy) were measured by high performance liquid chromatography and the concentrations of chemokine MCP-1 released from PBMC stimulated by oxidized low density lipoprotein were detected by enzyme immunoassays. The expression of MCP-1 on aortas of rats was detected by immunohistochemistry and Western blot. RESULTS: A high methionine diet for 45 days induced hyperhomocysteinemia. Folate supplementation to high-methionine diet significantly decreased plasma Thcy levels (P < 0.01). The expression of MCP-1 in aortic endothelium and the levels of MCP-1 released from PBMC stimulated by oxidized low density lipoprotein were significantly higher in rats of Hhcy group than in rats of control group (P < 0.05, P < 0.01). During supplementation of folate, normalization of Thcy levels was accompanied by a marked reduction of MCP-1 expression in aortic endothelium and by a significant decrease of MCP-1 released from PBMC stimulated by oxidized low density lipoprotein (P < 0.05, P < 0.01). CONCLUSION: Folate supplementation can prevent an elevation of homocysteine levels in the blood and decrease the expression MCP-1 in aortic endothelium and release of MCP-1 from PBMC in rats with hyperhomocysteinemia. FAU - Chen, Jian AU - Chen J AD - Department of Cardiovasology, Union Hospital, Tongji Medical College, Huazhong Science and Technology University, Wuhan 430022, China. FAU - Li, Ming AU - Li M FAU - Shu, Yan-Wen AU - Shu YW FAU - Liao, Yu-Hua AU - Liao YH LA - chi PT - English Abstract PT - Journal Article PL - China TA - Zhongguo Yi Xue Ke Xue Yuan Xue Bao JT - Zhongguo yi xue ke xue yuan xue bao. Acta Academiae Medicinae Sinicae JID - 8006230 RN - 0 (Chemokine CCL2) RN - 0LVT1QZ0BA (Homocysteine) RN - 935E97BOY8 (Folic Acid) RN - AE28F7PNPL (Methionine) SB - IM MH - Animals MH - Aorta/cytology/metabolism MH - Chemokine CCL2/*biosynthesis/genetics MH - Endothelium, Vascular/metabolism MH - Folic Acid/*pharmacology MH - Homocysteine/blood MH - Hyperhomocysteinemia/blood/chemically induced/*metabolism MH - Leukocytes, Mononuclear/metabolism MH - Male MH - Methionine MH - Random Allocation MH - Rats MH - Rats, Sprague-Dawley EDAT- 2005/09/24 09:00 MHDA- 2006/04/29 09:00 CRDT- 2005/09/24 09:00 PHST- 2005/09/24 09:00 [pubmed] PHST- 2006/04/29 09:00 [medline] PHST- 2005/09/24 09:00 [entrez] PST - ppublish SO - Zhongguo Yi Xue Ke Xue Yuan Xue Bao. 2005 Aug;27(4):470-4.