To screen the best compatibility ratio and administration conditions of
Panax ginseng
-
Poria cocos
pair against aging, and investigate its mechanism.
METHODS
2
P. ginseng
-
P. cocos
pair extracts with different compatibility ratios (1∶1, 1∶2, 2∶1, 1∶4, 4∶1,
m
/
m
) were prepared; taking
Saccharomyces cerevisiae
as the aging model organism, the
S. cerevisiae
growth curve was drawn by MTT method, the best compatibility ratio,administration concentration and administration time point of
P. ginseng
-
P. cocos
pair were screened out; the activities of antioxidant related enzymes [superoxide dismutase (SOD), peroxidase (POD), catalase (CAT)
]
, the levels of reactive oxygen species (ROS) and malondialdehyde (MDA), the content of adenosine triphosphate (ATP), and the mitochondrial membrane potential (MMP) in
S. cerevisiae
cells were detected; mRNA expressions of SOD1, CTT1, GSH1, ATP1, MRS1 and CDC19 were also detected.
RESULTS
2
The optimal ratio of
P. ginseng
-
P. cocos
pair for anti-aging activity was 1∶4 (
m
/
m
), the optimal administration concentration was 220 μg/mL, and the optimal administration time point was the 28th hour. The extracts of
P. ginseng
-
P. cocos
pair (1∶4,
m
/
m
) could significantly increase the activities of SOD, POD and CAT, ATP content, MMP,mRNA expression of CTT1, GSH1 and MRS1 (
P
<0.01), but decrease the levels of MDA and ROS, mRNA expressions of SOD1, ATP1 and CDC19 (
P
<0.05 or
P
<0.01).
CONCLUSIONS
2
P. ginseng
-
P. cocos
pair (1∶4,
m
/
m
) has a good anti-aging effect on
S. cerevisiae
,its mechanism may be related to the positive regulation of oxidative stress and energy metabolism of
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