SUN Xiao-li,XIAO Yan-xia,FU Bang-ze,et al.Effect and Mechanism of Longshengzhi Capsule on Atherosclerosis in ApoE-/- Mice[J].Chinese Journal of Experimental Traditional Medical Formulae,2022,28(06):86-91.
SUN Xiao-li,XIAO Yan-xia,FU Bang-ze,et al.Effect and Mechanism of Longshengzhi Capsule on Atherosclerosis in ApoE-/- Mice[J].Chinese Journal of Experimental Traditional Medical Formulae,2022,28(06):86-91. DOI: 10.13422/j.cnki.syfjx.20220502.
Effect and Mechanism of Longshengzhi Capsule on Atherosclerosis in ApoE-/- Mice
To study the effect of Longshengzhi capsule (LSZC) on high fat diet (HFD)-induced atherosclerosis (AS) in apolipoprotein E knockout (ApoE
-/-
) mice.
Method
2
ApoE
-/-
mice were fed with HFD for 8 weeks to induce AS. Then the mice were randomized into model group, simvastatin group (4 mg·kg
-1
), high-dose LSZC group (1.6 g·kg
-1
), medium-dose LSZC group (0.8 g·kg
-1
), and low-dose LSZC group (0.4 g·kg
-1
). C57BL/6J Mice with normal diet were used as the blank control. After 10 weeks, serum levels of triglyceride (TG), total cholesterol (TC), high-density lipoprotein cholesterol (HDL-C), low-density lipoprotein cholesterol (LDL-C), malondialdehyde (MDA), superoxide dismutase (SOD), interleukin-1
β
(IL-1
β
), and interleukin-6 (IL-6) were detected. Hematoxylin-eosin (HE) and oil red O were used to detect aortic plaque in each group. The levels of CD34 and F4/80 in aorta were determined by immunohistochemistry (IHC).
Result
2
Compared with the blank control, the model group demonstrated obvious aortic plaque, a large amount of lipid accumulation, serious damage of aortic intima, increase in serum levels of TC, TG, LDL-C, HDL-C, MDA, IL-1
β
,
and IL-6 (
P
<
0.01), decrease in SOD level (
P
<
0.01), and rise of the expression of CD34 and F4/80 (
P
<
0.01). Compared with the model group, LSZC of the three doses all decreased the serum levels of TG and LDL-C (
P
<
0.05), and the levels of IL-1
β
and IL-6 (
P
<
0.05,
P
<
0.01), and the high-dose and medium-dose LSZC improved SOD level, decreased MDA content (
P
<
0.05,
P
<
0.01), and reduced the expression of the CD34 and F4/80 in blood vessels (
P
<
0.05,
P
<
0.01).
Conclusion
2
LSZC has certain intervention effect on the formation of aortic plaque in atherosclerosis ApoE
-/-
mice. The mechanism is that it reduces the levels of serum TG and LDL-C to lower blood lipid, decreases MDA level and improves SOD activity to inhibit lipid peroxidation, lowers the levels of IL-1
β
and IL-6 and down-regulates the expression of CD34 and F4/80 to protect blood vessels from inflammatory damage.
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Related Author
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ZHANG Zhongyi
QIU Hairong
ZHAO Mei
ZHOU Zubing
SHEN Tao
ZHANG Yong
LIANG Yuqin
Related Institution
Chengdu University of Traditional Chinese Medicine(TCM)
Hospital of Chengdu University of TCM
Hubei Minzu University
Institute of TCM, Sichuan Academy of Chinese Medicine Sciences
Institute of Traditional Chinese Medicine, Heilongjiang University of Chinese Medicine