Effect of Shaoyao Gancaotang and Its Disassembled Prescriptions on Expressions of TRPV3, TRPV4 in Myocardium and Hypothalamus of Rats with Ultra-high Temperature
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Effect of Shaoyao Gancaotang and Its Disassembled Prescriptions on Expressions of TRPV3, TRPV4 in Myocardium and Hypothalamus of Rats with Ultra-high Temperature
Chinese Journal of Experimental Traditional Medical FormulaeVol. 25, Issue 24, Pages: 9-14(2019)
Feng-yun YAO, Lin WANG, Chun-hua LIU, et al. Effect of Shaoyao Gancaotang and Its Disassembled Prescriptions on Expressions of TRPV3, TRPV4 in Myocardium and Hypothalamus of Rats with Ultra-high Temperature. [J]. Chinese Journal of Experimental Traditional Medical Formulae 25(24):9-14(2019)
DOI:
Feng-yun YAO, Lin WANG, Chun-hua LIU, et al. Effect of Shaoyao Gancaotang and Its Disassembled Prescriptions on Expressions of TRPV3, TRPV4 in Myocardium and Hypothalamus of Rats with Ultra-high Temperature. [J]. Chinese Journal of Experimental Traditional Medical Formulae 25(24):9-14(2019) DOI: 10.13422/j.cnki.syfjx.20192301.
Effect of Shaoyao Gancaotang and Its Disassembled Prescriptions on Expressions of TRPV3, TRPV4 in Myocardium and Hypothalamus of Rats with Ultra-high Temperature
To observe the effect of Shaoyao Gancaotang and its disassembled prescriptions on the expressions of transient receptor potential vanilloid 3 (TRPV3) and transient receptor potential vanilloid 4 (TRPV4) in myocardium and hypothalamus of rats in the ultra-high temperature environment
in order to explore the mechanism of Shaoyao Gancaotang and its disassembled prescriptions against the high temperature.
Method:
2
Seventy five male SPF-grade SD rats were randomly divided into 5 groups according to their body weight
namely normal control group
high temperature normal control group
Shaoyao Gancaotang group (2.16 g·kg
-1
)
single Paeoniae Radix Alba(PRA) group (1.08 g·kg
-1
) and single Glycyrrhizae Radix et Rhizoma(GRR) group (1.08 g·kg
-1
). Except normal control group
the remaining groups were fed in artificial climate boxes for 13 days. The normal control group and the high temperature normal control group were given the same volume of pure water. Western blot and quantitative real-time fluorescence polymerase chain reaction(Real-time PCR) were used to determine expressions of TRPV3
TRPV4 protein and mRNA in myocardium and hypothalamus of each group.
Result:
2
Compared with the normothermic control group
the expressions of TRPV3 protein
TRPV4 mRNA
TRPV3 protein and TRPV3 mRNA in the myocardium of the hyperthermic control group were significantly higher than those of the normal control group (
P
<
0.05)
and the expression of TRPV3 protein in the hypothalamus was significantly higher than that of the normal control group (
P
<
0.05). Compared with the normal control group
the expressions of TRPV3
TRPV4 proteins in myocardium of rats in PRA group were significantly lower than those in the control group
and the expression of TRPV4 protein in myocardium of rats in Shaoyao Gancaotang group and GRR group was significantly lower than that in control group. The expression of TRPV4 mRNA in myocardium of rats in PRA group was significantly increased (
P
<
0.05).
Conclusion:
2
TRPV3
TRPV4 channels in rat myocardium and hypothalamus were activated in the high temperature environment. The anti-hyperthermic mechanism of Shaoyao Gancaotang and its disassembled prescriptions was related to the regulation of TRPV3
TRPV4 channel protein and mRNA expressions in rat myocardium and hypothalamus.
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