Lu WANG, Li-e SUN, Xiang-ping KANG, et al. Effect of Recipes for Tonifying Kidney and Replenishing Qi on Learning and Memory-related Genes in Aged Rats[J]. Chinese journal of experimental traditional medical formulae, 2019, 25(6): 15-22.
DOI:
Lu WANG, Li-e SUN, Xiang-ping KANG, et al. Effect of Recipes for Tonifying Kidney and Replenishing Qi on Learning and Memory-related Genes in Aged Rats[J]. Chinese journal of experimental traditional medical formulae, 2019, 25(6): 15-22. DOI: 10.13422/j.cnki.syfjx.20190601.
Effect of Recipes for Tonifying Kidney and Replenishing Qi on Learning and Memory-related Genes in Aged Rats
To observe the effects of recipes for tonifying kidney and replenishing Qi
Zuoguiwan (ZG) and Yiqi Congming Tang(YQ) on memory capacity
expressions of learning and memory-related genes expression
and explore the changes in relevant epigenetic modification enzymes.
Method:
2
SD male rats with natural aging (24 months old) were used as animal models and randomly divided into aged control group
aged ZG group(12.12 g·kg
-1
)
aged YQ group(10.18 g·kg
-1
)
aged compound group(11.15 g·kg
-1
) and aged antagonist RU38486 group(5×10
-3
g·kg
-1
). Another 5 months old male SD rats were included as the young control group. Morris water maze method was used to observe the spatial learning and memory ability of the rats. The co-localizations of histone deacetylase 2 (HDAC2) and methyl CpG binding protein 2 (MeCP2) in hippocampus of rats in each group were observed by laser confocal microscope. The changes in expressions of glucocorticoid receptor (GR)
synapsin1(Syn-1)
HDAC2
and histone acetyltransferase 1(HAT1) proteins in hippocampus of each group were detected by Western blot
and mRNA expression of HDAC2 was detected by Real-time fluorescence quantitative polymerase Chain reaction (Real-time PCR). At the same time
the effects of ZG
YQ and compound decoction in alleviating the above-mentioned abnormal changes were observed.
Result:
2
Compared with the young control group(control group)
the latency of the aged control group was significantly prolonged (
P
<
0.05)
the number of crossing platforms was significantly reduced (
P
<
0.05); compared with the aged control group(model group)
the latencies of the ZG group and the YQ group were significantly shortened (
P
<
0.05)
and the numbers of crossing platforms were increased. Compared with the young control group
the protein and mRNA expressions of HDAC2 in the aged control group were significantly increased (
P
<
0.05
P
<
0.01)
and the co-expression with MeCP2 in the nucleus was significantly increased; and the expressions of HAT1
GR and Syn-1 were significantly decreased(
P
<
0.05
P
<
0.01). ZG
YQ and compound can all alleviate the abnormal changes of the above indicators to varying degrees
but the YQ and the compound group had no effect on HAT1.
Conclusion:
2
ZG group
YQ group
and compound group can improve the spatial learning and memory abilities of aged rats by increasing the expression of learning-memory-associated protein GR and epigenetic modification enzyme HAT1
and reducing the expression of HDAC2 and the co-localization of HDAC2 protein and MeCP2 in the nucleus.
关键词
Keywords
references
Meijer O C , Topic B , Steenbergen P J , et al . Correlations between hypothalamus-pituitary-adrenal axis parameters depend on age and learning capacity [J]. Endocrinology , 2005 , 146 ( 3 ): 1372 - 1381 .
Sandi C . Glucocorticoids act on glutamatergic pathways to affect memory processes [J]. Trends Neurosci , 2011 , 34 ( 4 ): 165 - 176 .
Singh P , Srivas S , Thakur M K. Epigenetic regulation of memory-therapeutic potential for disorders [J]. Curr Neuropharmacol , 2017 , 15 ( 8 ): 1208 - 1221 .
Kutlu M G , Gould T J. Effects of drugs of abuse on hippocampal plasticity and hippocampus-dependent learning and memory:contributions to development and maintenance of addiction [J]. Learn Memory , 2016 , 23 ( 10 ): 515 - 533 .
Tabrizian K , Hashemzaei M , Nasiri A A , et al . Interactive involvement of hippocampal cAMP/PKA and cyclooxygenase-2 signaling pathways in spatial learning in the Morris water maze [J]. Folia Neuropathol , 2018 , 56 ( 1 ): 58 - 66 .
Madalena K M , Lerch J K. The effect of glucocorticoid and glucocorticoid receptor interactions on brain,spinal cord,and glial cell plasticity [J]. Neural Plast , 2017 , doi: 10.1155/2017/8640970 doi:10.1155/2017/8640970 .
Tesic V , Perovic M , Lazic D , et al . Long-term intermittent feeding restores impaired GR signaling in the hippocampus of aged rat [J]. J Steroid Biochem , 2015 , 149 : 43 - 52 .
Daskalakis N P , De Kloet E R , Yehuda R , et al . Early life stress effects on glucocorticoid—BDNF interplay in the hippocampus [J]. Front Mol Neurosci , 2015 , doi: 10.3389/fnmol.2015.00068 doi:10.3389/fnmol.2015.00068 .
Marte A , Messa M , Benfenati F , et al . Synapsins are downstream players of the BDNF-mediated axonal growth [J]. Mol Neurobiol , 2017 , 54 ( 1 ): 484 - 494 .
Kim S , Kaang B K. Epigenetic regulation and chromatin remodeling in learning and memory [J]. Exp Mol Med , 2017 , 49 ( 1 ): e281 .
Duke C G , Kennedy A J , Gavin C F , et al . Experience-dependent epigenomic reorganization in the hippocampus [J]. Learn Memory , 2017 , 24 ( 7 ): 278 - 288 .
Schmauss C . The roles of class I histone deacetylases (HDACs) in memory,learning,and executive cognitive functions:a review [J]. Neurosci Biobehav R , 2017 , 83 : 63 - 71 .
Singh P , Srivas S , Thakur M K. Epigenetic regulation of memory-therapeutic potential for disorders [J]. Curr Neuropharmacol , 2017 , 15 ( 999 ): 1208 - 1221 .
Uchida S , Shumyatsky G P. Epigenetic regulation of Fgf1 transcription by CRTC1 and memory enhancement [J]. Brain Res Bull , 2018 , 141 : 3 - 12 .
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