Alterations of plasma glucocerabrosidase,protein phosphastase 2A and ceramide levels in patients with ischemic stroke
11.3969/j.issn.1672-5921.2015.06.005
- VernacularTitle:缺血性卒中患者血浆葡萄糖脑苷脂酶和蛋白磷酸酶2A及神经酰胺水平的变化
- Author:
Minghua ZHANG
;
Yaguang SONG
;
Peng WANG
;
Weiwei YANG
;
Xin LI
;
Xuran LI
;
Shun YU
- Publication Type:Journal Article
- Keywords:
Stroke;
Plasma;
Glucocerebrosidase;
Proteinphosphatase2A;
Ceramide
- From:
Chinese Journal of Cerebrovascular Diseases
2015;(6):302-305
- CountryChina
- Language:Chinese
-
Abstract:
Objective Toanalyzethealterationsofplasmaglucocerebrosidase(GBA),protein phosphatase 2A (PP2A)and its degradation product ceramide in patients with ischemic stroke. Methods Atotalof45inpatientswithischemicstrokeattheDepartmentofNeurology,theAffiliated Hospital of Logistics College of the CAPF were enrolled from May to September 2013,and 45 age-and sex-matched healthy subjects at the Physical Examination Center collected at the same time period were used as a control group. Blood samples of the patients and healthy subjects were obtained,anticoagulated, and the plasma was separated. H50 protein chip and laser matrix-assisted laser desorption/ionization top of flymassspectrometrywereusedtotestthelevelsofplasmaceramide.Results TheplasmaGBAand PP2A activities in patients with ischemic stroke were significantly lower than those of the control group;the GBA activities of the ischemic stroke group and the control group were 2 . 4 ± 0 . 8 and 3 . 1 ± 1 . 4 U/L respectively. There was significant difference (P<0. 05);the PP2A activities of the two groups were 6. 5 ± 2. 8 and 14. 5 ± 4. 7 U/L respectively (P<0. 01). The relative level of the plasma ceramide in patients with ischemic stroke was 1. 9 ± 0. 7,and it was significantly lower than 12. 2 ± 5. 0 of the control group (P<0.01).Conclusion ThedecreasedlevelsofplasmaGBAandPP2Aactivitiesaswellasthe ceramide in patients with ischemic stroke suggested that the abnormal phosphorylation of synuclein in the blood of patients with stroke.
