scholarly journals Anticolitic Effect of Berberine in Rat Experimental Model: Impact of PGE2/p38 MAPK Pathways

2020 ◽  
Vol 2020 ◽  
pp. 1-12
Author(s):  
Li Jia ◽  
Kuijin Xue ◽  
Junheng Liu ◽  
Ola A. Habotta ◽  
Lianhai Hu ◽  
...  
Keyword(s):  
Mrna Expression ◽  
P38 Mapk ◽  
Experimental Colitis ◽  
Mucosal Damage ◽  
Isoquinoline Alkaloid ◽  
Protective Mechanism ◽  
Colon Mucosa ◽  
Tnf Α ◽  
Anti Inflammatory ◽  
High Doses

Berberine (BER), a natural isoquinoline alkaloid, has been demonstrated to have appreciable anticolitis effects. Nevertheless, the protective mechanism of BER in ulcerative colitis (UC) is barely understood. The present study was aimed at exploring the therapeutic efficacy of BER on UC in experimental colitis rat model. Rats were orally administered with BER for seven days at low and high doses (25 and 50 mg/kg/day) before AcOH intracolonic instillation. BER significantly retrieved colon inflammation and mucosal damage indicated by inhibition of macroscopic score and lessened the levels of inflammatory biomarkers (IL-1β, IL-6, TNF-α, MPO, and PGE2). Notable downregulation of mRNA expression of p38 MAPK and increased protein expression of TGF-β were achieved by BER treatment. The anti-inflammatory potential of BER was supported by the histopathological screening of colon mucosa. In addition, BER restored colonic antioxidant capacity through elevation of GSH level and antioxidant enzymatic activities (SOD, CAT, GPx, and GR) together with reductions of both MDA and NO levels. Marked downregulation of Nos2 mRNA expression is accompanied by increased Nrf2 and Hmox-1 expressions in colon specimens treated by BER. Furthermore, BER exhibited noticeable antiapoptotic activities through decreasing proapoptotic proteins (Bax and caspase-3) and lessening antiapoptotic Bcl-2 protein in the colon mucosa. Based on these findings, BER may improve colitis markedly which may be mediated by its striking antioxidant, anti-inflammatory, and antiapoptotic properties.

Temporal regulation of cytokine mRNA expression by tristetraprolin: dynamic control by p38 MAPK and MKP-1

2015 ◽  
Vol 308 (9) ◽  
pp. L973-L980 ◽  
Author(s):  
Pavan Prabhala ◽  
Kristin Bunge ◽  
Md. Mostafizur Rahman ◽  
Qi Ge ◽  
Andrew R. Clark ◽  
...  
Keyword(s):  
Smooth Muscle ◽  
Mrna Expression ◽  
P38 Mapk ◽  
Airway Smooth Muscle Cells ◽  
Cytokine Mrna ◽  
Temporal Regulation ◽  
Cytokine Mrna Expression ◽  
Tnf Α ◽  
Inflammatory Proteins ◽  
Anti Inflammatory

Cytokines drive many inflammatory diseases, including asthma. Understanding the molecular mechanisms responsible for cytokine secretion will allow us to develop novel strategies to repress inflammation in the future. Harnessing the power of endogenous anti-inflammatory proteins is one such strategy. In this study, we investigate the p38 MAPK-mediated regulatory interaction of two anti-inflammatory proteins, mitogen-activated protein kinase phosphatase 1 (MKP-1) and tristetraprolin (TTP), in the context of asthmatic inflammation. Using primary cultures of airway smooth muscle cells in vitro, we explored the temporal regulation of IL-6 cytokine mRNA expression upon stimulation with TNF-α. Intriguingly, the temporal profile of mRNA expression was biphasic. This was not due to COX-2-derived prostanoid upregulation, increased expression of NLRP3 inflammasome components, or upregulation of the cognate receptor for TNF-α-TNFR1. Rather, the biphasic nature of TNF-α-induced IL-6 mRNA expression was regulated temporally by the RNA-destabilizing molecule, TTP. Importantly, TTP function is controlled by p38 MAPK, and our study reveals that its expression in airway smooth muscle cells is p38 MAPK-dependent and its anti-inflammatory activity is also controlled by p38 MAPK-mediated phosphorylation. MKP-1 is a MAPK deactivator; thus, by controlling p38 MAPK phosphorylation status in a temporally distinct manner, MKP-1 ensures that TTP is expressed and made functional at precisely the correct time to repress cytokine expression. Together, p38 MAPK, MKP-1, and TTP may form a regulatory network that exerts significant control on cytokine secretion in proasthmatic inflammation through precise temporal signaling.

Piper sarmentosum Roxb. Root Extracts Confer Neuroprotection by Attenuating Beta Amyloid-Induced Pro-Inflammatory Cytokines Released from Microglial Cells

2019 ◽  
Vol 16 (3) ◽  
pp. 251-260 ◽  
Author(s):  
Elaine Wan Ling Chan ◽  
Emilia Tze Ying Yeo ◽  
Kelly Wang Ling Wong ◽  
Mun Ling See ◽  
Ka Yan Wong ◽  
...  
Keyword(s):  
Alzheimer’S Disease ◽  
Mrna Expression ◽  
Inflammatory Mediators ◽  
Beta Amyloid ◽  
Microglial Cells ◽  
Root Extracts ◽  
Tnf Α ◽  
P38α Mapk ◽  
Anti Inflammatory ◽  
Bv2 Microglial Cells

<P>Background: Alzheimer’s disease (AD) is a multifactorial neurodegenerative disorder that eventually leads to severe cognitive impairment. Although the exact etiologies of AD still remain elusive, increasing evidence suggests that neuroinflammation cascades mediated by microglial cells are associated with AD. Piper sarmentosum Roxb. (PS) is a medicinal plant reported to possess various biological properties, including anti-inflammatory, anti-psychotic and anti-oxidant activity. However, little is known about the anti-inflammatory activity of PS roots despite their traditional use to treat inflammatory- mediated ailments. Objective: This study aimed to evaluate the anti-inflammatory and neuroprotective properties of extracts obtained from the roots of PS against beta-amyloid (Aβ)-induced microglial toxicity associated with the production of pro-inflammatory mediators. Method: BV2 microglial cells were treated with hexane (RHXN), dichloromethane (RDCM), ethyl acetate (REA) and methanol (RMEOH) extracts of the roots of PS prior to activation by Aβ. The production and mRNA expression of pro-inflammatory mediators were evaluated by Griess reagent, ELISA kits and RT-qPCR respectively. The phosphorylation status of p38α MAPK was determined via western blot assay. BV2 conditioned medium was used to treat SH-SY5Y neuroblastoma cells and the neuroprotective effect was assessed using MTT assay. Results: PS root extracts, in particular RMEOH significantly attenuated the production and mRNA expression of IL-1β, IL-6 and TNF-α in Aβ-induced BV2 microglial cells. In addition, RHXN, REA and RMEOH extracts significantly reduced nitric oxide (NO) level and the inhibition of NO production was correlated with the total phenolic content of the extracts. Further mechanistic studies suggested that PS root extracts attenuated the production of cytokines by regulating the phosphorylation of p38α MAPK in microglia. Importantly, PS root extracts have protective effects against Aβ-induced indirect neurotoxicity either by inhibiting the production of NO, IL-1β, IL-6, and TNF-α in BV2 cells or by protecting SHSY5Y cells against these inflammatory mediators. Conclusions: These findings provided evidence that PS root extracts confer neuroprotection against Aβ- induced microglial toxicity associated with the production of pro-inflammatory mediators and may be a potential therapeutic agent for inflammation-related neurological conditions including Alzheimer’s disease (AD).</P>

Influence of β-D-mannuronic acid, as a new member of non-steroidal anti-inflammatory drugs family, on expression pattern of chemokines and their receptors in rheumatoid arthritis

2019 ◽  
Vol 16 ◽  
Author(s):  
Mona Aslani ◽  
Arman Ahmadzadeh ◽  
Zahra Aghazadeh ◽  
Majid Zaki-Dizaji ◽  
Laleh Sharifi ◽  
...  
Keyword(s):  
Cell Surface ◽  
Mrna Expression ◽  
Surface Expression ◽  
Phase Iii ◽  
Cell Surface Expression ◽  
Optimum Dose ◽  
High Dose ◽  
Mannuronic Acid ◽  
Anti Inflammatory ◽  
High Doses

Background: : Based on the encouraging results of phase III clinical trial of β-D-mannuronic acid (M2000) (as a new anti-inflammatory drug) in patients with RA, in this study, we aimed to evaluate the effects of this drug on the expression of chemokines and their receptors in PBMCs of RA patients. Methods:: PBMCs of RA patients and healthy controls were separated and the patients' cells were treated with low, moderate and high doses (5, 25 and 50 μg/mL) of M2000 and optimum dose (1 μg/mL) of diclofenac, as a control in RPMI-1640 medium. Real-time PCR was used for evaluating the mRNA expression of CXCR3, CXCR4, CCR2, CCR5 and CCL2/MCP-1. Cell surface expression of CCR2 was investigated using flow cytometry. Results:: CCR5 mRNA expression reduced significantly, after treatment of the patients' cells with all three doses of M2000 and optimum dose of diclofenac. CXCR3 mRNA expression down-regulated significantly followed by treatment of these cells with moderate and high doses of M2000 and optimum dose of diclofenac. CXCR4 mRNA expression declined significantly after treatment of these cells with moderate and high doses of M2000. CCL2 mRNA expression significantly reduced only followed by treatment of these cells with high dose of M2000, whereas, mRNA and cell surface expressions of CCR2 diminished significantly followed by treatment of these cells with high dose of M2000 and optimum dose of diclofenac. Conclusion:: According to our results, M2000 through the down-regulation of chemokines and their receptors may restrict the infiltration of immune cells into the synovium.

scholarly journals Bakuchiol Suppresses Inflammatory Responses Via the Downregulation of the p38 MAPK/ERK Signaling Pathway

2019 ◽  
Vol 20 (14) ◽  
pp. 3574 ◽  
Author(s):  
Hye-Sun Lim ◽  
Yu Jin Kim ◽  
Bu-Yeo Kim ◽  
Soo-Jin Jeong
Keyword(s):  
Mrna Expression ◽  
P38 Mapk ◽  
Inflammatory Responses ◽  
Mitogen Activated Protein Kinase ◽  
Enzyme Linked Immunosorbent Assay ◽  
Mice Model ◽  
Tnf Α ◽  
Cox 2

The purpose of the present study was to evaluate the effects of bakuchiol on the inflammatory response and to identify the molecular mechanism of the inflammatory effects in a lipopolysaccharide (LPS)-stimulated BV-2 mouse microglial cell line and mice model. The production of prostaglandin E2 (PGE2), tumor necrosis factor-α (TNF-α), and interleukin-6 (IL-6) was measured by enzyme-linked immunosorbent assay. The mRNA expression of inducible nitric oxide synthase (iNOS), cyclooxygenase-2 (COX-2), TNF-α, and IL-6 was measured using reverse transcription–polymerase chain reaction analysis. Mitogen-activated protein kinase (MAPK) phosphorylation was determined by western blot analysis. In vitro experiments, bakuchiol significantly suppressed the production of PGE2 and IL-6 in LPS-stimulated BV-2 cells, without causing cytotoxicity. In parallel, bakuchiol significantly inhibited the LPS-stimulated expression of iNOS, COX-2, and IL-6 in BV-2 cells. However, bakuchiol had no effect on the LPS-stimulated production and mRNA expression of TNF-α or on LPS-stimulated c-Jun NH2-terminal kinase phosphorylation. In contrast, p38 MAPK and extracellular signal-regulated kinase (ERK) phosphorylation were inhibited by bakuchiol. In vivo experiments, Bakuchiol reduced microglial activation in the hippocampus and cortex tissue of LPS-injected mice. Bakuchiol significantly suppressed LPS-injected production of TNF-α and IL-6 in serum. These results indicate that the anti-neuroinflammatory effects of bakuchiol in activated microglia are mainly regulated by the inhibition of the p38 MAPK and ERK pathways. We suggest that bakuchiol may be beneficial for various neuroinflammatory diseases.

scholarly journals Anti-Inflammatory Property of the Essential Oil from Cinnamomum camphora (Linn.) Presl Leaves and the Evaluation of Its Underlying Mechanism by Using Metabolomics Analysis

Molecules ◽  
2020 ◽  
Vol 25 (20) ◽  
pp. 4796
Author(s):  
Jiali Chen ◽  
Cailin Tang ◽  
Yang Zhou ◽  
Rongfei Zhang ◽  
Shaoxia Ye ◽  
...  
Keyword(s):  
Essential Oil ◽  
Mrna Expression ◽  
Underlying Mechanism ◽  
Treated Group ◽  
Microglial Cells ◽  
Cinnamomum Camphora ◽  
Tnf Α ◽  
Anti Inflammatory ◽  
Factor Α ◽  
Bv2 Microglial Cells

Cinnamomum camphora (Linn.) Presl has been widely used in traditional Chinese medicine for a variety of purposes. Our previous study indicated the antibacterial mechanism of the essential oil (EO) from C. camphora leaves; however, its anti-inflammatory activity and the underlying mechanism have not been clearly demonstrated. Thus, the present study investigated its anti-inflammatory property. Our data revealed that EO significantly decreased the release of nitric oxide (NO) and the mRNA expression of inducible NO synthase (iNOS) in lipopolysaccharide (LPS)-induced BV2 microglial cells. EO also attenuated LPS-induced increase in the mRNA expression and secretion of inflammatory cytokines including interleukin-6 (IL-6), IL-18, IL-1β and tumor necrosis factor-α (TNF-α). Furthermore, the metabolic profiles of LPS-induced BV2 microglial cells treated with or without EO were explored. Thirty-nine metabolites were identified with significantly different contents, including 21 upregulated and 18 downregulated ones. Five pathways were enriched by shared differential metabolites. Compared with the control cells, the glucose level was decreased, while the lactate level was increased, in the culture supernatant from LPS-stimulated cells, which were reversed by EO treatment. Moreover, compared to the LPS-treated group, the activities of phosphofructokinase (PFK) and pyruvate kinase (PK) in EO group were decreased. In summary, the current study demonstrated that EO from C. camphora leaves acts as an anti-inflammatory agent, which might be mediated through attenuating the glycolysis capacity of microglial cells.

scholarly journals Increased Anti-Inflammatory Effects on LPS-Induced Microglia Cells by Spirulina maxima Extract from Ultrasonic Process

2019 ◽  
Vol 9 (10) ◽  
pp. 2144 ◽  
Author(s):  
Woon Yong Choi ◽  
Jae-Hun Sim ◽  
Jung-Youl Lee ◽  
Do Hyung Kang ◽  
Hyeon Yong Lee
Keyword(s):  
Mrna Expression ◽  
Dependent Manner ◽  
Spirulina Maxima ◽  
Concentration Dependent Manner ◽  
Quantitative Correlation ◽  
Tnf Α ◽  
Ultrasonic Process ◽  
Anti Inflammatory ◽  
Low Cytotoxicity ◽  
High Concentrations

The Spirulina maxima exact from a non-thermal ultrasonic process (UE) contains 17.5 mg/g of total chlorophyll, compared to 6.24 mg/g of chlorophyll derived from the conventional 70% ethanol extraction at 80 °C for 12 h (EE). The UE also showed relatively low cytotoxicity against murine microglial cells (BV-2) and inhibited the production of the inflammatory mediators, NO and PGE2. The UE also effectively suppresses both mRNA expression and the production of pro-inflammatory cytokines, such as TNF-α, IL-6 and IL-1β, in a concentration-dependent manner. Notably, TNF-α gene and protein production were most strongly down-regulated, while IL-6 was the least affected by all ranges of treatment concentrations. This work first demonstrated a quantitative correlation between mRNA expression and the production of cytokines, showing that suppression of TNF-α gene expression was most significantly correlated with its secretion. These results clearly proved that the anti-inflammatory effects of Spirulina extract from a nonthermal ultrasonic process, which yielded high concentrations of intact forms of chlorophylls, were increased two-fold compared to those of conventional extracts processed at high temperature.

Dipyridamole decreases inflammatory metalloproteinase-9 expression and release by human monocytes

2013 ◽  
Vol 109 (02) ◽  
pp. 280-289 ◽  
Author(s):  
Maria Annunziata Carluccio ◽  
Mariangela Pellegrino ◽  
Nadia Calabriso ◽  
Carlo Storelli ◽  
Giuseppe Martines ◽  
...  
Keyword(s):  
P38 Mapk ◽  
Mononuclear Cells ◽  
Nuclear Translocation ◽  
Human Peripheral Blood ◽  
Antiplatelet Agent ◽  
Guanosine Monophosphate ◽  
Human Monocytes ◽  
Peripheral Blood Mononuclear ◽  
Tnf Α ◽  
Anti Inflammatory

SummaryMatrix metalloproteinase (MMP)-9 plays an important role in stroke by accelerating matrix degradation, disrupting the blood-brain barrier and increasing infarct size. Dipyridamole is an antiplatelet agent with recognised benefits in ischaemic stroke prevention. In addition to its antiplatelet properties, recent studies have reported that dipyridamole also features anti-inflammatory and anti-oxidant properties. We therefore investigated whether dipyridamole can ameliorate the proinflammatory profile of human monocytes, a source of MMP-9 in stroke, in terms of regulation of MMP-9 activity and expression, and explored underlying mechanisms. Human peripheral blood mononuclear cells (PBMC) and U937 cells were treated with increasing concentrations of dipyridamole (up to 10 µg/ml) for 60 minutes before stimulation with tumour necrosis factor (TNF)-α or phorbol myristate acetate (PMA). Exposure of PBMC and U937 to dipyridamole reduced TNF-α- and PMA-induced MMP-9 activity and protein release as well as MMP-9 mRNA, without significantly affecting the release of TIMP-1. This inhibitory effect was independent of dipyridamole-induced cyclic adeno-sine monophosphate (cAMP) and cyclic guanosine monophosphate (cGMP) increase. Correspondingly, dipyridamole also significantly inhibited TNF-α-induced nuclear factor (NF)-κB activation and nuclear translocation of the p65 NF-κB subunit through a mechanism involving the inhibition of IkBα degradation and p38 MAPK activation. In conclusion, dipyridamole, at therapeutically achievable concentrations, reduces the expression and release of MMP-9 through a mechanism involving p38 MAPK and NF-κB inhibition. These results indicate that dipyridamole exerts anti-inflammatory properties in human monocytes that may favourably contribute to its actions in the secondary prevention of stroke, independent of its antiplatelet properties.

Thiadiazolidinone-8 Ameliorates Inflammation Associated with Experimental Colitis in Mice

Pharmacology ◽  
2017 ◽  
Vol 101 (1-2) ◽  
pp. 35-42 ◽  
Author(s):  
Vanessa Mateus ◽  
João Rocha ◽  
Paula Alves ◽  
Hélder Mota-Filipe ◽  
Bruno Sepodes ◽  
...  
Keyword(s):  
Glycogen Synthase ◽  
Experimental Colitis ◽  
Trinitrobenzene Sulfonic Acid ◽  
Protective Actions ◽  
Tnf Α ◽  
Inflammatory Bowel ◽  
Anti Inflammatory ◽  
Gsk 3Β ◽  
Necrosis Factor

Thiadiazolidinone-8 (TDZD-8) is an effective thiadiazolidinone derivate that is able to suppress the expression of inflammatory cytokines; it also presents tissue protective actions by glycogen synthase kinase (GSK)-3β inhibition, promoting thus an anti-inflammatory effect. Since inflammatory bowel disease is a chronic disease with reduced quality of life, where currently available therapies are only able to induce or maintain the patient in remission, it is crucial to investigate new pharmacological approaches. The main objective of this study was to evaluate the effect of TDZD-8 in 2,4,6-trinitrobenzene sulfonic acid (TNBS)-induced colitis. Male CD-1 mice with TNBS-induced colitis were treated with a daily dose of TDZD-8 5 mg/kg/day IP during 4 days. The anti-inflammatory properties of TDZD-8 in the TNBS-induced colitis were confirmed by suppression of pro-inflammatory mediators, such as tumor necrosis factor (TNF)-α, interleukin (IL)-1β and myeloperoxidase, as well as by the significant increase of the anti-inflammatory cytokine, IL-10. These treated mice also presented a reduction in fecal hemoglobin and alkaline phosphatase, suggesting a beneficial effect of TDZD-8. Furthermore, renal and hepatic biomarkers remained stabilized after treatment. In conclusion, TDZD-8 reduces the inflammatory response associated with TNBS-induced colitis in mice, and modulation of GSK-3β seems to be an interesting pharmacological target in colitis.

scholarly journals Anti-inflammatory activity of palmitoylethanolamide ameliorates osteoarthritis induced by monosodium iodoacetate in Sprague–Dawley rats

2021 ◽  
Vol 29 (5) ◽  
pp. 1475-1486
Author(s):  
Jae In Jung ◽  
Hyun Sook Lee ◽  
Young Eun Jeon ◽  
So Mi Kim ◽  
Su Hee Hong ◽  
...  
Keyword(s):  
Mrna Expression ◽  
Acid Amide ◽  
Treatment Strategies ◽  
Leukotriene B4 ◽  
Control Group ◽  
Sprague Dawley ◽  
Sprague Dawley Rats ◽  
Tnf Α ◽  
Monosodium Iodoacetate ◽  
Anti Inflammatory

AbstractNovel treatment strategies are urgently required for osteoarthritis (OA). Palmitoylethanolamide (PEA) is a naturally occurring fatty acid amide with analgesic and anti-inflammatory effects. We aimed to examine its effect on OA and elucidate the molecular mechanism of actions in monosodium iodoacetate (MIA)-induced OA Sprague–Dawley rats. The experimental animals were divided into normal control group (injected with saline + treated with phosphate-buffered saline (PBS), NOR), control group (injected with MIA + treated with PBS, CON), 50 or 100 mg/kg body weight (BW)/day PEA-treated group (injected with MIA + treated with 50 or 100 mg of PEA/kg BW/day, PEA50 or PEA100), and positive control group (injected with MIA + treated with 6 mg of diclofenac/kg BW/day, DiC). The changes in blood parameters, body parameters, gene expression of inflammatory mediators and cytokines, knee thickness, and joint tissue were observed. Oral administration of PEA had no adverse effects on the BW, liver, or kidneys. PEA reduced knee joint swelling and cartilage degradation in MIA-induced OA rats. The serum levels of leukotriene B4, nitric oxide, tumor necrosis factor (TNF)-α, interleukin (IL)-1β, and prostaglandin E2 considerably reduced in the PEA100 group compared with those in the CON group. In the synovia of knee joints, the mRNA expression of iNOS, 5-Lox, Cox-2, Il-1β, Tnf-α, and Mmp-2, -3, -9, and -13 apparently increased with MIA administration. Meanwhile, Timp-1 mRNA expression apparently decreased in the CON group but increased to the normal level with PEA treatment. Thus, PEA can be an effective therapeutic agent for OA.

scholarly journals The Role of Thymoquinone in Mitigating Carbon Tetrachloride-Induced Hepatocellular Carcinoma in Rats: Targeting the CHOP-1/JNK/P38 MAPK, NFκB/TNF-α/IL-10, and Bax/Bcl-2/Caspase-3 Signalling Pathways

2021 ◽  
Vol 69 (1) ◽  
pp. 1-9
Author(s):  
Rania Elsayed Hussein ◽  
Laila Ahmed Rashed ◽  
Basma Emad Aboulhoda ◽  
Ghada Mahmoud Abdelaziz ◽  
Ebtehal Gamal Abdelhady ◽  
...  
Keyword(s):  
Gene Expression ◽  
Hepatocellular Carcinoma ◽  
P38 Mapk ◽  
Caspase 3 ◽  
B Cell Lymphoma ◽  
Mitogen Activated Protein Kinase ◽  
Lipid Peroxidation Product ◽  
Tnf Α ◽  
Anti Inflammatory ◽  
Bax Gene

The present study was conducted to evaluate the effect of thymoquinone (TQ) on hepatocellular carcinoma (HCC) in rats. Our study has reported that TQ treatment of experimentally-induced HCC results in the up-regulation of the Jun-N-terminal kinase and p38 mitogen activated protein kinase pathway (JNK/p38 MAPK) and the enhancement of anti-inflammatory, anti-oxidant, and pro-apoptotic machineries. TQ resulted in a significant decrease in the levels of nuclear factor kappa-light-chain-enhancer of activated B-cells (NFκB), tumor necrosis factor-α (TNF-α), and a significant increase in the anti-inflammatory interleukin-10 (IL-10). The pro-apoptotic effect of TQ was demonstrated through stimulating the apoptotic Bcl-2-associated X (Bax) gene and inhibiting the anti-apoptotic B-cell lymphoma 2 (Bcl-2) gene together with increasing the level of caspase 3 and up-regulating the C/EBP homologous protein (CHOP-1) gene expression. TQ treatment also enhanced the activity of the ROS scavenger, superoxide dismutase (SOD), and decreased the level of the lipid peroxidation product malondialdehyde (MDA). TQ-dependent suppression of HCC was associated with the up-regulation of JNK/p38 MAPK, enhanced CHOP-1 expression, and subsequently increased Bax gene expression.

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