ZHAO Gui-feng, HUANG Xin-wei, WU Li-yu. Cardioprotective Mechanism of Shenshao Capsule Against Myocardial Ischemia-reperfusion Injury in Rats Based on NF-B Pathway[J]. Chinese journal of experimental traditional medical formulae, 2017, 23(12): 145-150.
ZHAO Gui-feng, HUANG Xin-wei, WU Li-yu. Cardioprotective Mechanism of Shenshao Capsule Against Myocardial Ischemia-reperfusion Injury in Rats Based on NF-B Pathway[J]. Chinese journal of experimental traditional medical formulae, 2017, 23(12): 145-150. DOI: 10.13422/j.cnki.syfjx.2017120145.
Objective: To observe the cardioprotective effect of Shenshao capsule and its effective components against myocardial ischemia-reperfusion injury (MIRI) in rats and explore its action mechanism based on the nuclear factor-κB (NF-κB) pathway. Method: Male Wistar rats were used to establish MIRI models by ligation of left anterior descending coronary artery for 30 min and reperfusion for 120 min. Then these rats were randomly divided into sham operation group (Sham)
ischemia/reperfusion group (I/R)
Shenshao capsule 250 mg·kg-1 group (SS250)
Shenshao capsule 500 mg·kg-1 group (SS500)
total ginsenoside of Ginseng stems and leaves group (TGSL)
paeony group (Pae) and atorvastatin group (Ator). All of these rats received intragastric administration for 7 days. Then the myocardial infarction area was detected by triphenyltetrazolium chloride (TTC) method; the levels of serum creatine kinase isoenzyme (CK-MB) and lactate dehydrogenase (LDH) were measured by automatic biochemical analyzer. The content of interleukin-1β(IL-1β)
tumor necrosis factor-α(TNF-α) and IL-10 were determined with enzyme linked immunosorbent assay (ELISA); while Western-blot was used to detect the expression levels of NF-κBp65 and p-NF-κBp65. Result: As compared with I/R group
the myocardial infarction size was reduced in SS250
SS500
TGSL
Pae and Ator groups (P<0.05
P<0.01); CKMB and LDH levels were significantly decreased in SS250
SS500
TGSL and Ator groups (P<0.05
P<0.01). The TNF-α level was decreased in SS250
SS500 and TGSL groups (P<0.05
P<0.01); the IL-1β level was decreased in SS250
SS500
Pae and Ator groups (P<0.05); the level of IL-10 was increased in SS250 and SS500 groups (P<0.05
P<0.01); and the p-NF-κBp65 protein expression level was decreased significantly in SS250 and SS500 groups (P<0.01). Conclusion: Shenshao capsule had cardioprotective effect for MIRI rats
and the mechanism may be associated with inhibiting the over activation of NF-κB expression pathway
and the effect of Shenshao capsule high dose group was superior to its single active ingredient.