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2018 ; 12
(ä): 1281-1292
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Tanshinol ameliorates CCl(4)-induced liver fibrosis in rats through the
regulation of Nrf2/HO-1 and NF-?B/I?B? signaling pathway
#MMPMID29844659
Wang R
; Wang J
; Song F
; Li S
; Yuan Y
Drug Des Devel Ther
2018[]; 12
(ä): 1281-1292
PMID29844659
show ga
Tanshinol, a water-soluble component isolated from Salvia miltiorrhiza Bunge, has
a variety of biological activities involving anti-fibrotic effect. However, the
exact role and the underlying mechanisms remain largely unclear. This study
mainly focused on the anti-hepatic fibrotic activities and mechanisms of
tanshinol on carbon tetrachloride (CCl(4))-induced liver fibrosis in rats via
anti-oxidative and anti-inflammation pathways. The rats were divided into 4
groups as follows: control, model, tanshinol 20 mg/kg, and tanshinol 40 mg/kg.
Except for the control group, CCl(4) was used to induce liver fibrosis processing
for 8 weeks, meanwhile rats in tanshinol groups were intraperitoneally injected
with additional tanshinol. Control group simultaneously received the same volumes
of olive oil and saline. The potentially protective effect and mechanisms of
tanshinol on liver fibrosis in rats were evaluated. The serum levels of alanine
aminotransferase, aspartate aminotransferase, and total bilirubin were obviously
lower in the tanshinol treatment groups related to model group. Compared with the
model group, the levels of hyaluronic acid, type IV collagen, Laminin (LN), and
procollagen III peptide (PIIIP) in serum were significantly decreased after
tanshinol treatment. Furthermore, tanshinol could regulate Nrf2/HO-1 signaling
pathway and increase the level of superoxide dismutase (SOD) and glutathione
peroxidase (GSH-Px), and also decrease the level of malondialdehyde (MDA) to
against damage induced by oxidative stress. Simultaneously tanshinol could
regulate nuclear factor kappa B signaling pathway to inhibit expression of
inflammation factors, including transforming growth factor-?, tumor necrosis
factor-?, Cox-2, interleukin-1?, and interleukin-6. In summary, our research
demonstrated that tanshinol has protective effect on CCl(4)-induced liver
fibrosis via inhibiting oxidative stress and inflammation, which may be
associated with the regulation of nuclear factor erythroid2-related factor
2/hemeoxygenase-a and nuclear factor kappa B/inhibitor of kappa B alpha signaling
pathways.