scholarly journals Anti-arthritic effect of total anthraquinone from Polygonum cuspidatum on type II collagen-induced arthritis in rats

2017 ◽  
Vol 16 (10) ◽  
pp. 2453-2459
Author(s):  
Feng Wang ◽  
Yan-hong Qiao ◽  
Hui-min Niu ◽  
Hong Zhao
Keyword(s):  
Inflammatory Cytokines ◽  
Type Ii Collagen ◽  
Serum Levels ◽  
Underlying Mechanism ◽  
Enzyme Linked Immunosorbent Assay ◽  
Type Ii ◽  
Polygonum Cuspidatum ◽  
Collagen Induced Arthritis ◽  
Tnf Α ◽  
Pro Inflammatory Cytokines

Purpose: To study the anti-arthritic effect of total anthraquinone from Polygonum  cuspidatum (TAPC) on type II collagen-induced arthritis (CIA) in rats, and to  investigate the underlying mechanism(s).Methods: CIA rats were prepared and treated orally with TAPC at doses of 50, 100 and 200 mg/kg/day, for 24 days. Paw volume and arthritis score were measured prior to TAPC treatment, and subsequently at 3-day intervals on days 3, 6, 9, 12, 15, 18, 21 and 24. Serum levels of TNF-α, IL-6 and IL-17 were determined by enzyme-linked immunosorbent assay (ELISA), while synovial tissue TNF-α, IL-6 and IL-17mRNA expressions were assayed by real time-polymerase chain reaction (RT-PCR). Thymus and spleen indices were also determined.Results: TAPC (50, 100 and 200 mg/kg) significantly alleviated paw swelling (p < 0.05), arthritis scores (p < 0.05) and thymus and spleen indices (p < 0.05) of CIA rats, when compared with the control rats. In addition, TAPC significantly decreased serum levels of the pro-inflammatory cytokines TNF-α, IL-6 and IL-17 (p < 0.01); and down-regulated their mRNA expressions in synovial tissues (p < 0.01).Conclusion: These results suggest that TAPC exerts good anti-arthritic activity in rats, most probably via suppression of inflammatory responses.Keywords: Polygonum cuspidatum, Anthraquinone, Type II collagen-induced  arthritis, Pro-inflammatory cytokines

scholarly journals Evaluation of pro-inflammatory cytokines in frail Tunisian older adults

PLoS ONE ◽  
2020 ◽  
Vol 15 (11) ◽  
pp. e0242152
Author(s):  
Sonia Hammami ◽  
Imen Ghzaiel ◽  
Souha Hammouda ◽  
Nabil Sakly ◽  
Mohamed Hammami ◽  
...  
Keyword(s):  
Older Adults ◽  
Inflammatory Cytokines ◽  
Geriatric Assessment ◽  
Nutritional Assessment ◽  
Short Form ◽  
Mini Nutritional Assessment ◽  
Serum Levels ◽  
Enzyme Linked Immunosorbent Assay ◽  
Tnf Α ◽  
Pro Inflammatory Cytokines

The present study was undertaken to evaluate serum levels of pro-inflammatory cytokines in Tunisian older adults and to examine the relationships between inflammatory marker levels, geriatric, and biochemical parameters. A cross-sectional study was conducted in a population of Tunisian older adults (N = 141, aged 65 and over). Patients were recruited from the Department of Internal Medicine, Fattouma Bourguiba University Hospital (Monastir, Tunisia) and from a nursing home (Sousse, Tunisia). Comprehensive geriatric assessment, history taking and examination including functional and nutritional assessment were done for each participant. Enzyme-linked immunosorbent assay (ELISA) test was used to measure serum cytokine (TNF-α, IL-8, IL-6) levels. The modified Short Emergency Geriatric Assessment score (SEGAm) were used to classify patients as 51 very-frail, 40 frail, and 50 non-frail. The age of the participants (80 men, 61 women) ranged from 65 to 97 years. Serum levels of TNF-α, IL-8 and C-reactive protein (CRP) were significantly higher in very-frail participants compared to frail and non-frail ones. However, no significant differences in IL-6 levels were detected among frailty groups. After adjustment for age, CRP and IL-8 levels remained significantly associated with frailty. Analysis of the receiver operating characteristic (ROC) curve corresponding to IL-8 showed an area under the curve of 0.7 (p = 0.003; 95% CI [0.58–0.81]) and a predictive threshold of 5.27 pg/ml. Positive correlations were found between frailty score, IL-6, and IL-8 levels. In addition, a significant positive correlation was observed between IL-8 levels and Timed Up and Go test results. However, a negative correlation was observed between Mini Nutritional Assessment Short-Form score, IL-6 and CRP levels, as well as between Activities of Daily Living score and serum levels of TNF-α, IL-6, and CRP. In conclusion, the key findings of this study collectively support a role of pro-inflammatory cytokines, TNF-α, CRP, and especially IL-8 in the development of frailty in older adults.

scholarly journals Impact of loganin on pro-inflammatory cytokines and depression- and anxiety-like behaviors in male diabetic rats

2018 ◽  
Vol 105 (2) ◽  
pp. 116-126 ◽  
Author(s):  
M Rajabi ◽  
G Mohaddes ◽  
F Farajdokht ◽  
S Nayebi Rad ◽  
M Mesgari ◽  
...  
Keyword(s):  
Body Weight ◽  
Blood Glucose ◽  
Inflammatory Cytokines ◽  
Diabetic Rats ◽  
Assay Method ◽  
Enzyme Linked Immunosorbent Assay ◽  
Depression And Anxiety ◽  
Tnf Α ◽  
Immobility Time ◽  
Pro Inflammatory Cytokines

Behavioral disturbances are observed in most patients suffering from diabetes. According to some evidence, pro-inflammatory cytokines have a key role both in diabetes and behavioral disorders, such as anxiety and depression. In this study, the effect of chronic administration of loganin, as a bioflavonoid, was investigated on pro-inflammatory cytokines and depression- and anxiety-like behaviors in streptozotocin-induced diabetes in male Wistar rats. Blood levels of interleukin-6 (IL-6) and tumor necrosis factor-alpha (TNF-α) were assessed by enzyme-linked immunosorbent assay method. Depression- and anxiety-like behaviors were evaluated by forced swimming test (FST), elevated plus maze (EPM), and open field test (OFT), respectively. Body weight was also measured before the interventions and after the experiments in all groups. Our findings show that loganin-treated animals had significantly lower serum concentrations of IL-6 and TNF-α compared with the diabetic group. In the EPM test, loganin treatment significantly increased the percentage of the open arm time and open arm entries. Moreover, loganin treatment significantly decreased the grooming time and restored distance traveled and center crossing in the OFT. However, it decreased immobility time in the FST. Loganin treatment also significantly restored body weight gain and attenuated blood glucose changes in the diabetic rats. These results indicate that loganin possibly alleviates depression- and anxiety-like behaviors associated with diabetes through lowering the blood glucose and pro-inflammatory cytokine levels. More research is required to show the exact mechanism of antidepressant and anxiolytic effects of loganin in diabetes.

Interleukin-6, Hepcidin, and Other Biomarkers in Anemia of Chronic Disease (ACD) and Chemotherapy-Induced Anemia (CIA): Potential Therapeutic Targets.

Blood ◽  
2012 ◽  
Vol 120 (21) ◽  
pp. 2086-2086 ◽  
Author(s):  
Saroj Vadhan-Raj ◽  
Xiao Zhou ◽  
Carlos E. Bueso-Ramos ◽  
Shreyaskumar Patel ◽  
Robert S Benjamin ◽  
...  
Keyword(s):  
Chronic Disease ◽  
Inflammatory Cytokines ◽  
Linear Regression Analysis ◽  
Transferrin Saturation ◽  
Serum Levels ◽  
Serum Samples ◽  
Anemia Of Chronic Disease ◽  
Baseline Serum ◽  
Tnf Α ◽  
Pro Inflammatory Cytokines

Abstract Abstract 2086 Background: Anemia in patients with malignancies can be multifactorial including anemia of chronic disease (ACD), also known as anemia of inflammation (AI), and chemotherapy (CT)-induced anemia (CIA) from myelosuppression. Although, exact mechanism for ACD is not known, induction of hepcidin, a key iron-regulatory hormone, by Interleukin (IL)-6 and other pro-inflammatory cytokines with resulting hypoferremia and limitation of iron supply to the bone marrow appear to be major contributors to pathogenesis of anemia. Hepcidin reduces iron levels by inducing degradation of the cellular iron exporter, ferroportin. The objective of this study was to examine the levels of various cytokines/regulators that may play role in ACD. Methods: Chemo-naïve patients with sarcoma scheduled to initiate first-line doxorubicin-based chemotherapy had blood samples drawn at baseline, and following chemotherapy (post cycles1, 3 and 6) for analysis of pro-inflammatory cytokines/other biomarkers of anemia. Serum samples were analyzed for IL-1β, IL-6, TNF-α, Hepcidin, hemojuvelin, ferroportin, soluble transferrin receptor (sTFR), and C-reactive protein (CRP) using ELISA techniques (R&D Diagnostics, Uscn Life Science Inc, or Abnova). Correlations between these biomarkers and Hgb levels at baseline and during the study period were calculated by linear regression analysis (SAS 9.2). Results: Of the 49 patients enrolled on to the clinical trial, there were 26 (53%) women and 23 (47%) men, with median age 45 years (range 19–65 years). Twenty-five percent of the patients had Hgb less than 12g/dL (range, 8.9–15.9 g/dL) prior to CT. At baseline, 50% of the pts had hypoferremia with low serum iron and transferrin saturation <20%. Baseline serum levels of IL-6 (r= −0.73, p<0.0001), hepcidin (r= −0.46, p=0.005), CRP (r= −0.46, p=0.003), sTFR (r= −0.32, p=0.064) inversely correlated with hemoglobin levels prior to CT, supporting their role in ACD. During CT (median 4, range; 1–6 cycles), Hgb declined in all pts with 55% requiring PRBC transfusions (77% of pts starting with baseline Hgb < 12 g/dL vs 47% of pts with baseline Hgb > 12 g/dL). Interestingly, as shown below, Hepcidin, IL-6, and sTFR all significantly negatively correlated with Hgb levels during CT. No significant correlation was found for IL-1β, TNF-α, ferroportin, or hemojuvelin levels with Hgb. Conclusions: IL-6 and Hepcidin pathway appears to play an important role in anemia in cancer patients before and during CT. Treatment with novel agents targeting this pathway may provide effective strategies for prevention and treatment of ACD and CIA. Disclosures: Vadhan-Raj: JNJ: Research Funding.

Peripheral interleukin-6 promotes resilience versus susceptibility to inescapable electric stress

2015 ◽  
Vol 27 (5) ◽  
pp. 312-316 ◽  
Author(s):  
Chun Yang ◽  
Yukihiko Shirayama ◽  
Ji-Chun Zhang ◽  
Qian Ren ◽  
Kenji Hashimoto
Keyword(s):  
Prefrontal Cortex ◽  
Western Blot ◽  
Inflammatory Cytokines ◽  
Learned Helplessness ◽  
Blot Analysis ◽  
Interleukin 6 ◽  
Serum Levels ◽  
Enzyme Linked Immunosorbent Assay ◽  
Electric Stress ◽  
Pro Inflammatory Cytokines

ObjectiveAccumulating evidences suggest that pro-inflammatory cytokines such as interleukin-6 (IL-6) play a role in the pathophysiology of depression. In the learned helplessness (LH) paradigm, ~35% rats are resilient to inescapable stress.MethodsLevels of IL-6 in the serum and medial prefrontal cortex (mPFC) of LH rats (susceptible) and non-LH rats (resilience) were measured using enzyme-linked immunosorbent assay and western blot analysis, respectively.ResultsSerum levels of IL-6 in the LH rats were significantly higher than those of control and non-LH rats. In contrast, tissue levels of IL-6 in the mPFC were not different among three groups.ConclusionThe results suggest that peripheral IL-6 may contribute to resilience versus susceptibility to inescapable stress.

scholarly journals The effect of hemantane on the level of pro-inflammatory cytokines in the nigrocaudate complex of the brain of mice with experimental parkinsonism

2021 ◽  
pp. 45-49
Author(s):  
Н.А. Воронина ◽  
В.Г. Кучеряну ◽  
Л.А. Ветрилэ ◽  
В.В. Голоборщева ◽  
И.Г. Капица ◽  
...  
Keyword(s):  
Inflammatory Cytokines ◽  
Clinical Stage ◽  
Late Phase ◽  
Brain Structures ◽  
Interferon Γ ◽  
Nigrostriatal System ◽  
Enzyme Linked Immunosorbent Assay ◽  
Tnf Α ◽  
Ifn Γ ◽  
Pro Inflammatory Cytokines

Целью данных исследований явилось изучение влияния гимантана (N-(2-адамантил)-гексаметиленимина гидрохлорида) на уровень провоспалительных цитокинов IL-1β, IL-6, интерферона-γ (ИФН-γ) и фактора некроза опухоли-α (ФНО-α) в нигрокаудатном комплексе мышей на ранней и поздней клинической фазе экспериментального паркинсонического синдрома (ПС), для выяснения его антипаркинсонического эффекта. Методы исследования: Раннюю и позднюю клиническую фазу ПС создавали у мышей линии C57BL/6J внутрибрюшинным введением пронейротоксина 1-метил-4-фенил-1,2,3,6-тетрагидропиридина (МФТП) в дозах 12 мг/кг или 20 мг/кг по 4 инъекции с интервалом 2 часа, соответственно. Гимантан вводили мышам внутрибрюшинным в дозе 20 мг/кг, предварительно каждый раз за 30 мин до введения МФТП. Содержание цитокинов в структурах мозга мышей определяли методом иммуноферментного анализа с использованием тест-систем производства «Cloud-Clone Corporation», США и считывающего устройства «ИФА-reader» прибора «ImmunoChem-2100», США. Результаты: Показано, что уровень IL-1β, IL-6, ИФН-γ и ФНО-α в нигрокаудатном комплексе мозга мышей возрастает как на ранней, так и на поздней фазах развития ПС. Предварительное применение гимантана снижало в нигрокаудатном комплексе мышей содержание цитокинов IL-1β, ИФН-γ и ФНО-α на ранней фазе, и только одного из 4 изученных (IL-6) - на поздней фазе развития ПС. Предполагается, что антипаркинсонический эффект гимантана на ранней клинической стадии МФТП-индуцированного ПС осуществляется, в том числе, за счёт снижения уровня провоспалительных цитокинов в нигростриатной системе, предупреждая снижение жизнеспособности дофаминергических нейронов. The aim of this work was to study the effect of Hemantane (N-(2-adamantyl)-hexamethyleneimine hydrochloride) on the level of pro-inflammatory cytokines IL-1β, IL-6, interferon-γ (IFN-γ), and tumor necrosis factor-α (TNF-α) in the nigrocaudate complex of mice in early and late clinical phases of experimental Parkinsonian syndrome (PS) to elucidate its antiparkinsonian effect. Material and methods: The early and late clinical phases of PS were created in C57BL / 6J mice by 4 intraperitoneal injections at 2-h intervals of a proneurotoxin, 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP), at a dose of 12 mg/kg or 20 mg/kg. Hemantane was injected intraperitoneally at a dose of 20 mg/kg 30 min before each MPTP administration. Concentrations of cytokines in mouse brain structures were measured by enzyme-linked immunosorbent assay (ELISA) using Cloud-Clone Corporation (USA) test systems and an ImmunoChem-2100 (USA) ELISA reader. Results: Concentrations of IL-1β, IL-6, IFN-γ, and TNF-α in the nigrocaudate complex were increased both in the early and late phases of PS. Prior administration of hemantane reduced the content of IL-1β, IFN-γ, and TNF-α in the nigrocaudate complex at the early phase and the content of only one of the 4 studied cytokines (IL-6) at the late phase of PS. It was assumed that the antiparkinsonian effect of hemantane at the early clinical stage of MPTP-induced PS involves a decrease in proinflammatory cytokines in the nigrostriatal system, which prevents the impairment of the viability of dopaminergic neurons.

scholarly journals Impact of loganin on pro-inflammatory cytokines and depression- and anxiety-like behaviors in male diabetic rats

2018 ◽  
Vol 105 (3) ◽  
pp. 199-209 ◽  
Author(s):  
M Rajabi ◽  
G Mohaddes ◽  
F Farajdokht ◽  
S Nayebi Rad ◽  
M Mesgari ◽  
...  
Keyword(s):  
Body Weight ◽  
Blood Glucose ◽  
Inflammatory Cytokines ◽  
Diabetic Rats ◽  
Assay Method ◽  
Enzyme Linked Immunosorbent Assay ◽  
Depression And Anxiety ◽  
Tnf Α ◽  
Immobility Time ◽  
Pro Inflammatory Cytokines

Behavioral disturbances are observed in most patients suffering from diabetes. According to some evidence, pro-inflammatory cytokines have a key role both in diabetes and behavioral disorders, such as anxiety and depression. In this study, the effect of chronic administration of loganin, as a bioflavonoid, was investigated on pro-inflammatory cytokines and depression- and anxiety-like behaviors in streptozotocin-induced diabetes in male Wistar rats. Blood levels of interleukin-6 (IL-6) and tumor necrosis factor-alpha (TNF-α) were assessed by enzyme-linked immunosorbent assay method. Depression- and anxiety-like behaviors were evaluated by forced swimming test (FST), elevated plus maze (EPM), and open field test (OFT), respectively. Body weight was also measured before the interventions and after the experiments in all groups. Our findings show that loganin-treated animals had significantly lower serum concentrations of IL-6 and TNF-α compared with the diabetic group. In the EPM test, loganin treatment significantly increased the percentage of the open arm time and open arm entries. Moreover, loganin treatment significantly decreased the grooming time and restored distance traveled and center crossing in the OFT. However, it decreased immobility time in the FST. Loganin treatment also significantly restored body weight gain and attenuated blood glucose changes in the diabetic rats. These results indicate that loganin possibly alleviates depression- and anxiety-like behaviors associated with diabetes through lowering the blood glucose and pro-inflammatory cytokine levels. More research is required to show the exact mechanism of antidepressant and anxiolytic effects of loganin in diabetes.

scholarly journals The Effects of New Zealand Grown Ginseng Fractions on Cytokine Production from Human Monocytic THP-1 Cells

Molecules ◽  
2021 ◽  
Vol 26 (4) ◽  
pp. 1158
Author(s):  
Wei Chen ◽  
Prabhu Balan ◽  
David G. Popovich
Keyword(s):  
New Zealand ◽  
Inflammatory Cytokines ◽  
Transforming Growth Factor Beta ◽  
Inflammatory Cytokine ◽  
Transforming Growth Factor ◽  
Enzyme Linked Immunosorbent Assay ◽  
High Dose ◽  
Tnf Α ◽  
Anti Inflammatory ◽  
Pro Inflammatory Cytokines

Pro-inflammatory cytokines and anti-inflammatory cytokines are important mediators that regulate the inflammatory response in inflammation-related diseases. The aim of this study is to evaluate different New Zealand (NZ)-grown ginseng fractions on the productions of pro-inflammatory and anti-inflammatory cytokines in human monocytic THP-1 cells. Four NZ-grown ginseng fractions, including total ginseng extract (TGE), non-ginsenoside fraction extract (NGE), high-polar ginsenoside fraction extract (HPG), and less-polar ginsenoside fraction extract (LPG), were prepared and the ginsenoside compositions of extracts were analyzed by HPLC using 19 ginsenoside reference standards. The THP-1 cells were pre-treated with different concentrations of TGE, NGE, HPG, and LPG, and were then stimulated with lipopolysaccharide (LPS). The levels of pro-inflammatory cytokines, including tumor necrosis factor-alpha (TNF-α), interleukin-1 beta (IL-1β), interleukin-6 (IL-6), interleukin-8 (IL-8), and anti-inflammatory cytokines, such as interleukin-10 (IL-10), and transforming growth factor beta-1 (TGF-β1), were determined by enzyme-linked immunosorbent assay (ELISA). TGE at 400 µg/mL significantly inhibited LPS-induced TNF-α and IL-6 productions. NGE did not show any effects on inflammatory secretion except inhibited IL-6 production at a high dose. Furthermore, LPG displayed a stronger effect than HPG on inhibiting pro-inflammatory cytokine (TNF-α, IL-1β, and IL-6) productions. Particularly, 100 µg/mL LPG not only significantly inhibited the production of pro-inflammatory cytokines TNF-α, IL-1β, and IL-6, but also remarkably enhanced the production of anti-inflammatory cytokine IL-10. NZ-grown ginseng exhibited anti-inflammatory effects in vitro, which is mainly attributed to ginsenoside fractions (particularly less-polar ginsenosides) rather than non-saponin fractions.

scholarly journals 20S-Hydroxyvitamin D3, a Secosteroid Produced in Humans, Is Anti-Inflammatory and Inhibits Murine Autoimmune Arthritis

2021 ◽  
Vol 12 ◽  
Author(s):  
Arnold E. Postlethwaite ◽  
Robert C. Tuckey ◽  
Tae-Kang Kim ◽  
Wei Li ◽  
Syamal K. Bhattacharya ◽  
...  
Keyword(s):  
T Cells ◽  
Inflammatory Cytokines ◽  
Lymphocyte Subsets ◽  
Clinical Signs ◽  
Joint Damage ◽  
Type Ii Collagen ◽  
Autoimmune Arthritis ◽  
Type Ii ◽  
Cytochrome P450scc ◽  
Pro Inflammatory Cytokines

The ability to use large doses of vitamin D3 (D3) to chronically treat autoimmune diseases such as rheumatoid arthritis (RA) is prohibitive due to its calcemic effect which can damage vital organs. Cytochrome P450scc (CYP11A1) is able to convert D3 into the noncalcemic analog 20S-hydroxyvitamin D3 [20S(OH)D3]. We demonstrate that 20S(OH)D3 markedly suppresses clinical signs of arthritis and joint damage in a mouse model of RA. Furthermore, treatment with 20S(OH)D3 reduces lymphocyte subsets such as CD4+ T cells and CD19+ B cells leading to a significant reduction in inflammatory cytokines. The ratio of T reg cells (CD4+CD25+Foxp3+ T cells) to CD3+CD4+ T cells is increased while there is a decrease in critical complement-fixing anti-CII antibodies. Since pro-inflammatory cytokines and antibodies against type II collagen ordinarily lead to destruction of cartilage and bone, their decline explains why arthritis is attenuated by 20(OH) D3. These results provide a basis for further consideration of 20S(OH)D3 as a potential treatment for RA and other autoimmune disorders.

scholarly journals Immunomodulatory Effect of Vitamin C on Proinflammatory Cytokines Production in Ossimi Lambs (Ovis aries) with Pneumonic Pasteurellosis

Animals ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 3374
Author(s):  
Mohamed Abdo Rizk ◽  
Shimaa Abd El-Salam El-Sayed ◽  
Doaa Salman ◽  
Basma H. Marghani ◽  
Hossam Elshahat Gadalla ◽  
...  
Keyword(s):  
Vitamin C ◽  
Inflammatory Cytokines ◽  
Interleukin 1 ◽  
Serum Levels ◽  
Ovis Aries ◽  
Necrosis Factor Alpha ◽  
Pneumonic Pasteurellosis ◽  
Tnf Α ◽  
The Impact ◽  
Pro Inflammatory Cytokines

In this study, we have investigated the impact of vitamin C on the production of pro-inflammatory cytokines (interleukin 1 β (IL-1 β), interleukin 6 (IL-6), interleukin 12p40 (IL-12p40), interferon gamma (IFNγ), and tumor necrosis factor alpha (TNF-α)) in lambs naturally infected by pneumonic pasteurellosis. Of 37 lambs, 18 lambs were identified to have pneumonic pasteurellosis and randomly allocated into two equal groups. Single subcutaneous dose of tulathromycine alone (2.5 mg kg−1) or tulathromycine combined with vitamin C (3 gm kg−1) were administrated to the diseased lambs. The serum levels of IL-1β, IL-6, IFN-γ, and TNF-α were returned to the normal levels in pneumonic lambs treated with the combination therapy. The obtained results indicate the selective influences of vitamin C on pro-inflammatory cytokines production in sera of lambs with pneumonic pasteurellosis and highlights the value of vitamin C as a potential anti-inflammatory drug and ideal immunomodulatory agent.

scholarly journals Beneficial effects of diacerein on adipokines and pro-inflammatory cytokines involved in diet-induced nonalcoholic steatohepatitis in rats

2017 ◽  
Vol 6 (4) ◽  
pp. 811 ◽  
Author(s):  
Omaima M. Abd Allah
Keyword(s):  
Insulin Resistance ◽  
Blood Glucose ◽  
Inflammatory Cytokines ◽  
Blood Lipids ◽  
Fasting Blood Glucose ◽  
Liver Weight ◽  
Serum Levels ◽  
Beneficial Effects ◽  
Tnf Α ◽  
Pro Inflammatory Cytokines

Background: Non-alcoholic steatohepatitis (NASH) is considered as a progressive liver disease, so effective therapies are needed to ameliorate hepatic steatosis, inflammation and fibrosis, and to prevent the progression to cirrhosis and hepatocellular carcinoma. Diacerein is an anti-inflammatory drug that inhibits the synthesis and activity of pro-inflammatory cytokines. The present study was designed to investigate the effect of diacerein on pro-inflammatory cytokines as well as adipokines involved in diet-induced NASH rat model.Methods: Thirty-two adult male rats were divided into four groups: control, diacerein-treated, NASH-untreated and NASH+diacerein-treated groups. NASH was induced by feeding rats with high-fat and high-cholesterol diet for 12 weeks. Body weight, liver weight, fasting blood glucose and insulin levels for estimation of insulin resistance, blood lipids, alanine transaminase, and aspartate aminotransferase were evaluated. Serum levels of tumor necrosis factor-α (TNF-α), interleukin-1β (IL-1β), interleukin-6 (IL-6), adiponectin, visfatin and leptin were also detected. Histopathological examination of liver sections was performed.Results: Diacerein significantly reduced liver weight, fasting blood glucose, insulin level, transaminases and ameliorates insulin resistance with favourable effects on blood lipids. These results were accompanied with a significant reduction in serum levels of TNF-α, IL-1β, IL-6, and visfatin, while, adiponectin was significantly increased and leptin was insignificantly affected. Liver sections revealed that diacerein reduced steatosis and lobular inflammatory grades.Conclusions: These data suggest that diacerein administration may have a potential usefulness in the prevention of NASH as a possible result of inhibition of pro-inflammatory cytokines and the beneficial effects on adipokines especially adiponectin and visfatin.

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