WANG Liying,WANG Jian,FAN Yamei,et al.Anti-inflammation and Regulation of HIF-1α/VEGF of 3 Kinds of Borneolum in Prevention and Treatment of AMI Model Rats[J].Chinese Journal of Experimental Traditional Medical Formulae,2022,28(19):61-72.
WANG Liying,WANG Jian,FAN Yamei,et al.Anti-inflammation and Regulation of HIF-1α/VEGF of 3 Kinds of Borneolum in Prevention and Treatment of AMI Model Rats[J].Chinese Journal of Experimental Traditional Medical Formulae,2022,28(19):61-72. DOI: 10.13422/j.cnki.syfjx.20221009.
Anti-inflammation and Regulation of HIF-1α/VEGF of 3 Kinds of Borneolum in Prevention and Treatment of AMI Model Rats
To investigate the possible mechanism of different doses of
L
-Borneolum,Borneolum,and Borneolum Syntheticum in the electrophysiology,anti-inflammation,and regulation of hypoxia inducible factor-1
α
(HIF-1
α
)/vascular endothelial growth factor (VEGF) cardiovascular protection of the experimental acute myocardial infarction (AMI) rats.
Method
2
SD male adult rats were randomly divided into thirteen groups according to their body weight,namely the sham operation group,the model group,the solvent model group,the nitroglycerin group,the Borneolum high,medium,and low-dose (0.6,0.3, 0.15 g·kg
) groups,and the Borneolum Syntheticum high,medium,and low-dose (0.2,0.1, 0.05 g·kg
-1
) groups,with 10 rats in each group. Rats were given 10 mL·kg
-1
by gavage for 3 d of pre-administration. Thirty minutes after the last administration,the left anterior descending coronary artery (LAD) was ligated to induce the model,and the successful rat model was continuously treated for 3 d. BL-420N biosystem was used to analyze the electrocardiogram (ECG) and heart rate variability (HRV) before and after modeling and after 3 d of treatment. Real-time quantitative polymerase chain reaction (Real-time PCR) was used to determine the mRNA expressions of interleukin-1
β
(IL-1
β
) and interleukin-6 (IL-6) in the myocardial tissue Western blot and immunohistochemistry were used to determine the protein expression levels of VEGF receptor 1 (VEGFR1),HIF-1
α
,and CD34.
Result
2
Compared with the sham operation group,the model group significantly increased the heart rate,ECG ST wave,T wave,QRS duration,QTC interval,and Q wave on the day of modeling and after 3 d of treatment,and significantly changed HRV and T wave (
P
<
0.05,
P
<
0.01). As compared with the solvent model group,on the day of modeling,the heart rate of the
L
-Borneolum medium and low-dose groups and the Borneolum groups,the ST wave of the
L
-Borneolum groups,the Borneolum high and medium-dose groups,and the Borneolum Syntheticum high-dose group,HRV parameters of the
L
-Borneolum groups,the Borneolum medium and low-dose groups,and the Borneolum Syntheticum high-dose group,LF/HF of the
L
-Borneolum high and medium-dose group,the Borneolum low-dose group,and the Borneolum Syntheticum groups,T wave of the L-Borneolum high-dose group,the Borneolum Syntheticum high-dose group,and Borneolum medium-dose group,QTC interval of the
L
-Borneolum medium and low-dose groups and the Borneolum high and medium-dose groups,and QRS duration of the
L
-Borneolum high and low-dose groups,the Borneolum high and low-dose groups,and the Borneolum Syntheticum groups were significantly reduced or shortened (
P
<
0.05,
P
<
0.01). After 3 d of treatment,the heart rate of the
L
-Borneolum groups,the Borneolum high and medium-dose groups,and the Borneolum Syntheticum medium-dose group,ST wave of the
L
-Borneolum group,the Borneolum high and medium-dose groups,and the Borneolum Syntheticum high-dose group,OTC interval,ORS duration,and Q wave of the
L
-Borneolum high-dose group,the Borneolum high-dose group,and the Borneolum Syntheticum high and medium-dose groups,QRS duration of the
L
-Borneolum medium-dose group,QTC interval of the Borneolum medium-dose group,and Q wave of the Borneolum Syntheticum low-dose group were all significantly reduced or shortened(
P
<
0.01). The mRNA expressions of IL-1
β
and IL-6 in the
L
-Borneolum medium and low-dose groups,the Borneolum medium and low-dose groups,and the Borneolum Syntheticum high and medium-dose groups were significantly down-regulated(
P
<
0.01),and LF/HF in the
L
-Borneolum high and medium-dose groups,the Borneolum high and medium-dose groups,and the Borneolum Syntheticum high and low-dose groups were significantly reduced (
P
<
0.05,
P
<
0.01). HRV in the
L
-Borneolum high-dose group,the Borneolum groups,and the Borneolum Syntheticum high and low-dose groups,and T wave in the Borneolum high and medium-dose groups and the Borneolum Syntheticum high-dose group were increased significantly. The protein expressions of HIF-1
α
,VEGFR1,and CD34 in the
L
-Borneolum medium and low-dose groups,the Borneolum low-dose group,and the Borneolum Syntheticum high-dose group were significantly up-regulated,as well as those of VEGFR1 and CD34 in the Borneolum medium-dose group (
P
<
0.05,
P
<
0.01).
Conclusion
2
The 3 kinds of Borneolum improves the heart rate,heart rate variability,and electrocardiogram of AMI model rats to different degrees,and may play a myocardial protective effect by anti-inflammation and promotion of angiogenesis. The combined effect suggests that L-Borneolum has the superior effect next to Borneolum,and Borneolum Syntheticum has the inferior effect.
关键词
3种冰片心肌梗死心肌电生理炎症因子血管新生
Keywords
3 kinds of Borneolummyocardial infarctionmyocardial electrophysiologyinflammatory factorsangiogenesis
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