Clinical studies on plasma homocysteine levels and correlated factors after coronary artery bypass grafting
- VernacularTitle:冠脉旁路移植术后血清同型半胱氨酸水平及相关因素变化的临床研究
- Author:
Xiaohui MA
;
Changqing GAO
;
Bojun LI
- Publication Type:Journal Article
- Keywords:
cysteine;
ceruloplasmin;
coronary artery bypass
- From:Medical Journal of Chinese People's Liberation Army
1982;0(03):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To search for the factors which may be responsible to the increase in plasma homocysteine(Hcy)levels after surgery.Methods Blood samples were taken from 40 patients(20 patients with coronary artery bypass and the remainders with off-pump coronary artery bypass)1 day before operation and 1,3,5 and 7 day(s)after operation.Hcy,copper,ceruloplasmin,ferrei ion,folate,vitamin B12 and C-reactive protein(CRP)were then measured using clinical chemistry methods.Results The plasma concentrations of ceruloplasmin,copper and Hcy increased significantly at 3rd,4th and 6th day after operation respectively.The plasma concentrations of ferreous ion and vitamin B12 declined obviously at 3rd day after operation,and then increased slowly.In contrast,the plasma concentration of CRP increased significantly at 3rd day after operation,then decreased gradually to normal level.No significant changes were found in folate level before and after operation.Those findings mentioned above showed no significant difference between the two groups.Conclusions The increased plasma concentration of Hcy after operation may be caused by the internal metabolism of copper rather than by the coronary artery bypass.
