PMID- 15840222 OWN - NLM STAT- MEDLINE DCOM- 20050902 LR - 20140226 IS - 0578-1426 (Print) IS - 0578-1426 (Linking) VI - 44 IP - 2 DP - 2005 Feb TI - [A clinical study of hyperhomocysteinemia in rheumatological diseases]. PG - 111-4 AB - OBJECTIVE: To analysis plasma homocysteine (Hcy) level and some relative factors in some rheumatological diseases. METHODS: 54 cases with systemic lupus erythematosus (SLE), 48 cases with rheumatoid arthritis (RA), 60 cases with ankylosing spondylitis (AS), 30 cases with undifferentiated spondyloarthropathy (uSpA) and 62 controls were recruited to participate the study. Plasma Hcy, vitamin B(12), folate and the MTHFR gene C677T polymorphism were measured in all patients and controls. RESULTS: (1) Plasma Hcy levels were higher significantly in all disease groups than in the controls, the mean plasma Hcy level was (19.04 +/- 6.86) micromol/L for SLE, (19.07 +/- 7.43) micromol/L for RA, (16.47 +/- 6.50) micromol/L for AS, (16.59 +/- 6.72) micromol/L for uSpA and (12.24 +/- 3.58) micromol/L for controls (P < 0.01). (2) Significant inverse correlation was found between plasma Hcy level and vitamin B(12), folate (r = -0.701, -0.443, respectively; P < 0.01). (3) The MTHFR gene mutation make Hcy level dramatically rise, CC genotype (13.41 +/- 5.78) micromol/L, CT genotype (16.81 +/- 4.22) micromol/L, TT genotype (20.88 +/- 6.60) micromol/L (P < 0.05). TT genotype is susceptible for hyperhomocysteinemia and SLE (OR = 84.46, 7.56 respectively; P < 0.05). CONCLUSIONS: (1) Hyperhomocysteinemia is found in most SLE, RA, AS and uSpA patients. (2) There are lots of factors associated with Hcy concentration, such as folate, vitamin B12 and MTHFR gene mutation. (3) TT genotype of MTHFR is susceptible for hyperhomocysteinemia and SLE. FAU - Xu, Xiao-yan AU - Xu XY AD - Department of Rheumatology, Zhongda Hospital of Southeast University, Nanjing, Jangsu 210009, China. xiaoyanxu111@sohu.com FAU - Zhou, Wei-hua AU - Zhou WH FAU - Xiao, Chuan-shi AU - Xiao CS FAU - Li, Xiao-feng AU - Li XF FAU - Wang, Lai-yuan AU - Wang LY LA - chi PT - English Abstract PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - China TA - Zhonghua Nei Ke Za Zhi JT - Zhonghua nei ke za zhi JID - 16210490R RN - 0LVT1QZ0BA (Homocysteine) RN - 935E97BOY8 (Folic Acid) RN - EC 1.5.1.20 (Methylenetetrahydrofolate Reductase (NADPH2)) RN - P6YC3EG204 (Vitamin B 12) SB - IM MH - Adolescent MH - Adult MH - Child MH - Female MH - Folic Acid/blood MH - Genotype MH - Homocysteine/blood MH - Humans MH - Hyperhomocysteinemia/blood/*etiology/genetics MH - Male MH - Methylenetetrahydrofolate Reductase (NADPH2)/genetics MH - Middle Aged MH - Polymorphism, Genetic MH - Rheumatic Diseases/blood/*complications/genetics MH - Vitamin B 12/blood EDAT- 2005/04/21 09:00 MHDA- 2005/09/03 09:00 CRDT- 2005/04/21 09:00 PHST- 2005/04/21 09:00 [pubmed] PHST- 2005/09/03 09:00 [medline] PHST- 2005/04/21 09:00 [entrez] PST - ppublish SO - Zhonghua Nei Ke Za Zhi. 2005 Feb;44(2):111-4.