Free radical scavenging activity by Ganoderma lucidum polysaccharides peptide on peritoneal macrophages in mice
- VernacularTitle:灵芝多糖肽对小鼠巨噬细胞自由基的清除作用
- Author:
Yuhong YOU
;
Zhibin LIN
;
- Publication Type:Journal Article
- Keywords:
Ganoderma lucidum polysaccharides peptide;
free radicals;
peritoneal macrophages;
DCHF DA;
tBOOH
- From:
Chinese Journal of Clinical Pharmacology and Therapeutics
2000;0(01):-
- CountryChina
- Language:Chinese
-
Abstract:
AIM: To investigate the free radical scavenging activity of Ganoderma lucidum polysaccharides peptide (GLPP) on peritoneal macrophages in mice. METHODS: Alloxan and tert butylhydroperoxide (tBOOH) were used as an oxidant to injury peritoneal macrophages in vivo in mice or in vitro, respectively. 2', 7' dichlorodihydrofluorescein diacetate (DCHF DA) was used as fluorescent probe. The fluorescence from cells was observed under the laser confocal microscope. Time series scan of conforcal microscope was used to observe the changes of fluorescence by GLPP in mice peritoneal macrophages over time. RESULTS: The results of confocal microscopy showed that GLPP (100 mg?kg -1 , ig for 5 d ) lowed fluorescence in the mice macrophages injured by alloxan (75 mg?kg -1 iv). GLPP (10 mg?L -1 ) also lowed fluorescence in the mice macrophages injured by tBOOH ( 7.76 ?10 -5 mol?L -1 ) in vitro as well. Time series scan showed that GLPP (10 mg?L -1 ) lowed fluorescence in the mice macrophages at rest state or during the respiratory burst induced by PMA (50 nmol?L -1 ). CONCLUSION: GLPP shows antioxidant effects and might have free radical scavenging effects on peritoneal macrophages in mice.
