WU Shangzhi,SHI Xueli,ZHANG Yaguang,et al.Therapeutic Effect of Ziziphi Spinosae Semen-Albiziae Flos on Depression in Rats[J].Chinese Journal of Experimental Traditional Medical Formulae,2023,29(24):87-94.
WU Shangzhi,SHI Xueli,ZHANG Yaguang,et al.Therapeutic Effect of Ziziphi Spinosae Semen-Albiziae Flos on Depression in Rats[J].Chinese Journal of Experimental Traditional Medical Formulae,2023,29(24):87-94. DOI: 10.13422/j.cnki.syfjx.20230708.
Therapeutic Effect of Ziziphi Spinosae Semen-Albiziae Flos on Depression in Rats
To investigate the effect of Ziziphi Spinosae Semen-Albiziae Flos on the nucleotide-binding oligomerization domain,NOD-like receptor thermal protein domain associated protein 1 (NLRP1)/chemokine ligand 1 (CXCL1)/chemokine receptor 2 (CXCR2) pathway in the hippocampus of the rat model of chronic unpredictable mild stress (CUMS)-induced depression.
Method
2
A total of 120 male SD rats were randomized into blank,CUMS,CUMS + low-,medium-,and high-dose (4,8,16 g·kg
) groups,with 20 rats in each group.The rat model of depression was established by solitary feeding combined with CUMS.The behaviors and spatial learning and memory abilities of rats were examined by sugar water consumption test,tail suspension test,forced swimming test,and Morris water maze test.Quantitative real-time PCR (Real-time PCR) and Western blot were employed to determine the expression of factors associated with the NLRP1/CXCL1/CXCR2 pathway in the hippocampus.Enzyme-linked immunosorbent assay was employed to determine the levels of tumor necrosis factor-
α
(TNF-
α
),interleukin (IL)-18,IL-1
β
,and IL-6 in the hippocampus.The immunofluorescence assay was used to measure the levels of reactive oxygen species (ROS) in the hippocampus.
Result
2
Compared with the blank group,the CUMS group showed decreased preference to sugar water and times of crossing the platform (
P
<
0.01),and increased immobility time of tail suspension,forced swimming floating time,and escape latency (
P
<
0.01).Compared with the CUMS group,the administration of Ziziphi Spinosae Semen-Albiziae Flos and venlafaxine hydrochloride alleviated the effects of CUMS on the above-mentioned behaviors and spatial learning and memory abilities of the rats (
P
<
0.05,
P
<
0.01).Compared with the blank group,the CUMS group showed up-regulated protein levels of NLRP1,CXCL1,and CXCR2 (
P
<
0.01) and elevated levels of IL-18,IL-1
β
,TNF-
α
,and IL-6 (
P
<
0.01) in the hippocampus.The treatment with Ziziphi Spinosae Semen-Albiziae Flos and venlafaxine hydrochloride attenuated the activation of NLRP1/CXCL1/CXCR2 signaling pathway and lowered the levels of inflammatory cytokines in the hippocampus of CUMS rats (
P
<
0.05,
P
<
0.01).In addition,Ziziphi Spinosae Semen-Albiziae Flos lowered the level of ROS in the hippocampus (
P
<
0.05,
P
<
0.01).
Conclusion
2
Ziziphi Spinosae Semen-Albiziae Flos can mitigate the depressive behaviors of the rat model of CUMS-induced depression by inhibiting the activation of NLRP1/CXCL1/CXCR2 signaling pathway.
关键词
Keywords
references
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