scholarly journals Anti-Inflammatory Effect of Recreational Exercise in TNBS-Induced Colitis in Rats: Role of NOS/HO/MPO System

2014 ◽  
Vol 2014 ◽  
pp. 1-11 ◽  
Author(s):  
Zita Szalai ◽  
András Szász ◽  
István Nagy ◽  
László G. Puskás ◽  
Krisztina Kupai ◽  
...  
Keyword(s):  
Gene Expression ◽  
Physical Exercise ◽  
Inflammatory Mediators ◽  
Wheel Running ◽  
Treated Group ◽  
Mucosal Damage ◽  
Proinflammatory Mediators ◽  
Male Wistar Rats ◽  
Anti Inflammatory ◽  
Oxide Synthase

There are opposite views in the available literature: Whether physical exercise has a protective effect or not on the onset of inflammatory bowel disease (IBD). Therefore, we investigated the effects of recreational physical exercise before the induction of colitis. After 6 weeks of voluntary physical activity (running wheel), male Wistar rats were treated with TNBS (10 mg). 72 hrs after trinitrobenzene sulphonic acid (TNBS) challenge we measured colonic gene (TNF-α, IL-1β, CXCL1 and IL-10) and protein (TNF-α) expressions of various inflammatory mediators and enzyme activities of heme oxygenase (HO), nitric oxide synthase (NOS), and myeloperoxidase (MPO) enzymes. Wheel running significantly increased the activities of HO, constitutive NOS (cNOS) isoform. Furthermore, 6 weeks of running significantly decreased TNBS-induced inflammatory markers, including extent of lesions, severity of mucosal damage, and gene expression of IL-1β, CXCL1, and MPO activity, while IL-10 gene expression and cNOS activity were increased. iNOS activity decreased and the activity of HO enzyme increased, but not significantly, compared to the sedentary TNBS-treated group. In conclusion, recreational physical exercise can play an anti-inflammatory role by downregulating the gene expression of proinflammatory mediators, inducing anti-inflammatory mediators, and modulating the activities of HO and NOS enzymes in a rat model of colitis.

CB1 and CB2 contribute to antinociceptive and anti-inflammatory effects of electroacupuncture on experimental arthritis of the rat temporomandibular joint

2012 ◽  
Vol 90 (11) ◽  
pp. 1479-1489 ◽  
Author(s):  
Delane Viana Gondim ◽  
Joana Cláudia Bezerra Araújo ◽  
André Luiz Cunha Cavalcante ◽  
Alexandre Havt ◽  
Josiane da Siva Quetz ◽  
...  
Keyword(s):  
Gene Expression ◽  
Temporomandibular Joint ◽  
Receptor Gene ◽  
Antinociceptive Effect ◽  
Treated Group ◽  
Receptor Activation ◽  
Histopathological Analysis ◽  
Male Wistar Rats ◽  
Anti Inflammatory ◽  
Receptor Gene Expression

Electroacupuncture (EA) and cannabinoids have been reported to have anti-inflammatory and antinociceptive effects in animal models of arthritis. Male Wistar rats were injected with saline or zymosan (2 mg) into the temporomandibular joint (TMJ). EA (10 Hz, 30 min) was performed 2 h after or 1 h before zymosan administration. AM251 or AM630 (3 mg/kg, i.p.)were administered before EA treatment. Mechanical hypernociception was accessed after zymosan administration. Rats were sacrificed 6 h after zymosan administration and the joint was removed for histopathological analysis. The gene expression of CB1 and CB2 receptors was assessed after sacrifice of the TMJ arthritic animals. EA inhibited zymosan-induced hypernociception (p < 0.05). AM251 reversed significantly the antinociceptive effect of EA, suggesting that the CB1 receptor is involved in this effect. AM630 reversed the anti-inflammatory effect of EA. CB1 and CB2 receptor gene expression was upregulated 6 h after zymosan-induced arthritis in the EA-treated group. We observed downregulation of CB2 receptor gene expression in the EA group at the 24th hour compared with the 6th hour. Higher CB1 receptor gene expression was also found compared with the 6th hour. EA produced antinociceptive and anti-inflammatory effects, and these effects appeared to be mediated through CB1 and CB2 receptor activation.

scholarly journals Garlic and Onion Attenuates Vascular Inflammation and Oxidative Stress in Fructose-Fed Rats

2011 ◽  
Vol 2011 ◽  
pp. 1-7 ◽  
Author(s):  
Marcela Alejandra Vazquez-Prieto ◽  
Cecilia Rodriguez Lanzi ◽  
Carina Lembo ◽  
Claudio Rómulo Galmarini ◽  
Roberto Miguel Miatello
Keyword(s):  
Oxidative Stress ◽  
Vascular Inflammation ◽  
Mesenteric Arteries ◽  
Male Wistar Rats ◽  
Anti Inflammatory ◽  
Oxide Synthase ◽  
Cell Adhesion Molecule 1 ◽  
Endothelial Nitric Oxide ◽  
New Evidence ◽  
And Oxidative Stress

This study evaluates the antioxidant and the anti-inflammatory properties of garlic (G) and onion (O) in fructose-fed rats (FFR). Thirty-day-old male Wistar rats were assigned to control (C), F (10% fructose in drinking water), F+T (tempol 1 mM as control antioxidant), F+G, and F+O. Aqueous G and O extracts were administered orally in doses of 150 and 400 mg/kg/d respectively, and along with tempol, were given during the last 8 weeks of a 14-week period. At the end of the study, FFR had developed insulin resistance, aortic NADPH oxidase activity, increased SBP, plasma TBARS and vascular cell adhesion molecule-1 (VCAM-1) expression in mesenteric arteries, and a decrease in heart endothelial nitric oxide synthase (eNOS). Garlic and onion administration to F rats reduced oxidative stress, increased eNOS activity, and also attenuated VCAM-1 expression. These results provide new evidence showing the anti-inflammatory and antioxidant effect of these vegetables.

Ecklonia stolonifera inhibits lipopolysaccharide-induced production of nitric oxide, prostaglandin E2, and proinflammatory cytokines in RAW264.7 macrophages

Biologia ◽  
2010 ◽  
Vol 65 (2) ◽  
Author(s):  
Eun-Jin Yang ◽  
Young-Min Ham ◽  
Dong Kim ◽  
Ji-Young Kim ◽  
Jung Hong ◽  
...  
Keyword(s):  
Nitric Oxide ◽  
Prostaglandin E2 ◽  
Inflammatory Mediators ◽  
Biological Effects ◽  
Raw 264.7 Cells ◽  
Raw 264.7 ◽  
Ecklonia Stolonifera ◽  
Raw264.7 Macrophages ◽  
Anti Inflammatory ◽  
Oxide Synthase

AbstractAs part of our ongoing alternative medicine program, we have directed our attention toward the identification of edible seaweeds in Korea. Here we report on the anti-inflammatory activities of Ecklonia stolonifera. The present study was undertaken to elucidate the pharmacological and biological effects of E. stolonifera extracts on the production of inflammatory mediators in macrophages. The results indicate that the hexane fraction of E. stolonifera extract (ESH) is an effective inhibitor of lipopolysccharide (LPS)-induced NO, prostaglandin E2, and proinflammatory cytokine production in RAW 264.7 cells. These inhibitory effects of ESH were accompanied by decreases in the expression of inducible nitric oxide synthase and cyclooxygenase-2 proteins. Furthermore, ESH inhibited the LPS-induced phosphorylation and degradation of IκB-α, which is required for the nuclear translocations of the p50 and p65 nuclear transcription factor kappa-B (NF-κB) subunits in RAW 264.7 cells. Our results suggest that ESH might exert an anti-inflammatory effect by inhibiting the expression of pro-inflammatory cytokines. Such an effect is mediated by a blocking of NF-κB activation, which consequently inhibits the generation of inflammatory mediators in RAW264.7 cells. Through HPLC fingerprinting of the E. stolonifera extract, the phloroglucinol was also identified and quantified as standard substance. Moreover, we tested the potential application of E. stolonifera extract as a cosmetic material by performing human skin primary irritation tests. In these assays, E. stolonifera extracts did not induce any adverse reactions. Based on these results, we suggest that E. stolonifera extracts be considered possible anti-inflammatory candidates for topical application.

scholarly journals Η μελέτη της αντιοξειδωτικής και αντιφλεγμονώδους δράσης μορίων (U-74389G και σιλδεναφίλης) σε πειραματικό πρότυπο χημικής αιμορραγικής κολίτιδας σε επίμυες

2014 ◽  
Author(s):  
Γεώργιος-Αντώνιος Μαργώνης
Keyword(s):  
Body Weight ◽  
Combined Treatment ◽  
Damage Index ◽  
Mucosal Damage ◽  
Group 4 ◽  
Tnf Α ◽  
Male Wistar Rats ◽  
Experimental Rat Model ◽  
Anti Inflammatory ◽  
Group 5

BACKGROUND: Crohn disease is still incurable. Compounds with anti-inflammatory and/or antioxidativeeffects are tested in various preclinical models of the disease. Our aim was to investigate theeffects of sildenafil and lazaroid U-74389G in an experimental rat model oftrinitrobenzenesulfonic acid-induced colitis.MATERIALS AND METHODS:Trinitrobenzenesulfonic acid was instilled into the colon of all male Wistar rats except for therats belonging to the first group. For 6 days, the animals in group 3 were administered dailysildenafil orally, the rats in group 4 were administered daily U-74389G intravenously, and therats in group 5 were coadministered daily sildenafil orally and intravenous U-74389G. Therats in groups 1 and 2 were not administered any treatment. During the study, the weightswere recorded as a marker of clinical condition. The colon damage was evaluated usingmacroscopic colon mucosal damage index (CMDI), microscopic (Geboes score), andbiochemical methods (tissue tumor necrosis factor [TNF]-αΝandΝmalondialdehydeΝ[εϊχ]ΨέRESULTS:Sildenafil reduced TNF-αΝtissueΝlevelsΝandΝincreasedΝbodyΝweightέΝU-74389G reduced TNF-α,Νthe macroscopic index of mucosal damage score (CMDI) and increased body weight. Thecombined treatment with sildenafil and U-74389G reduced tissue levels of both TNF-αΝandΝMDA, lowered CMDI and microscopic Geboes score, and increased body weight. CONCLUSIONS:U-74389G demonstrated a significant anti-inflammatory activity related to its ability to reducecolonic TNF-α,ΝωεϊIΝscore, and improve weight change. We confirmed that sildenafil hasanti-inflammatory capacity by reducing colonic TNF-αΝandΝbyΝimprovingΝbodyΝweightέΝόinally,Νthe combined treatment showed superior effects by reducing colonic TNF-α,ΝcolonicΝεϊχ,ΝCMDI score, Geboes score, and by improving weight.

scholarly journals Nonsteroidal Anti-inflammatory Drugs Modulate Gene Expression of Inflammatory Mediators in Oral Squamous Cell Carcinoma

2019 ◽  
Vol 39 (5) ◽  
pp. 2385-2394
Author(s):  
DANIELLA MORAES ANTUNES ◽  
MARIA FERNANDA SETÚBAL DESTRO RODRIGUES ◽  
DOUGLAS MAGNO GUIMARÃES ◽  
CARINA MAGALHÃES ESTEVES DUARTE ◽  
LUCYENE MIGUITA ◽  
...  
Keyword(s):  
Gene Expression ◽  
Squamous Cell Carcinoma ◽  
Oral Squamous Cell Carcinoma ◽  
Cell Carcinoma ◽  
Squamous Cell ◽  
Inflammatory Mediators ◽  
Inflammatory Drugs ◽  
Anti Inflammatory

scholarly journals Pomiferin Exerts Anti-Neuroinflammatory Effects Through Activating Akt /Nrf2 Pathway and Inhibiting NF-κB pathway

2021 ◽  
Author(s):  
Yan Zhao ◽  
Yuxuan Sang ◽  
Yanan Sun ◽  
Jie Wu
Keyword(s):  
Neurodegenerative Diseases ◽  
Quantitative Pcr ◽  
Inflammatory Mediators ◽  
Peripheral Tissues ◽  
Nrf2 Pathway ◽  
Proinflammatory Mediators ◽  
Bv2 Cells ◽  
Tnf Α ◽  
Wide Range ◽  
Anti Inflammatory

Abstract Background:Neurodegenerative diseases are associated with neuroinflammation. However, the pro-inflammatory mediators produced during the occurrence of neuroinflammation will damage neurons and aggravate the process of neurodegenerative diseases. Therefore, inhibiting neuroinflammation may be an effective way to alleviate neurodegenerative diseases. The orange mulberry brass has a wide range of anti - oxidation and anti - inflammatory effects in peripheral tissues. However, it is not clear whether it inhibits neuroinflammation. Methods:In our experiment, we studied the effect of Pomiferin on BV2 cell inflammation and its mechanism with Quantitative PCR, ELISA and western blot.Results:The results showed that Pomiferin inhibited the production of ROS, NO and proinflammatory mediators (IL-6, TNF-α, iNOS, COX2) in BV2 cells. Further mechanism studies showed that Pomiferin activated the Akt /Nrf2 pathway and inhibited the NF-κB pathway. Conclusion: Our study demonstrated that Pomiferin exerts anti-neuroinflammatory effects through activating Akt /Nrf2 pathway and inhibiting NF-κB pathway.

The anti-apoptotic and anti-inflammatory properties of puerarin attenuate 3-nitropropionic-acid induced neurotoxicity in rats

2014 ◽  
Vol 92 (3) ◽  
pp. 252-258 ◽  
Author(s):  
Heba M. Mahdy ◽  
Mohamed R. Mohamed ◽  
Manal A. Emam ◽  
Amr M. Karim ◽  
Ashraf Abdel-Naim ◽  
...  
Keyword(s):  
Body Mass ◽  
Neuroprotective Effect ◽  
Treated Group ◽  
Activity Level ◽  
Energy Deficit ◽  
Nissl Staining ◽  
Nitropropionic Acid ◽  
Male Wistar Rats ◽  
Anti Inflammatory ◽  
3 Nitropropionic Acid

Puerarin (Pur), an isoflavonoid extracted from the dried roots of Pueraria lobata, has been reported to be useful in the treatment of various diseases. This study was designed to evaluate the anti-apoptotic and anti-inflammatory activities of Pur against 3-nitropropionic acid (3-NP) induced neurotoxicity. For 5 consecutive days, male Wistar rats were given Pur (200 mg/kg body mass) 30 min before treatment with 20 mg/kg body mass of 3-NP. The striata, hippocampi, and cortices of the 3-NP treated group showed apoptotic damage, inflammation, and energy deficit as well as histopathological lesions. The 3-NP-induced alteration in apoptotic biomarkers (caspase-3 activity/level, cytosolic cytochrome c, Bax/Bcl-2 levels) were significantly ameliorated by Pur treatment. Moreover, Pur pretreatment blocked 3-NP-induced inflammatory biomarkers (NF-κB, TNF-α, and iNOS) and prevented the energy deficit (ATP reduction). Nissl staining further confirmed Pur’s neuroprotective effect. These results indicate that Pur may be a useful preventive approach to various neurodegenerative diseases with underlying apoptosis and neuroinflammation.

scholarly journals Comparative Expression Analyses of Pro- versus Anti-Inflammatory Mediators within Synovium of Patients with Joint Trauma, Osteoarthritis, and Rheumatoid Arthritis

2017 ◽  
Vol 2017 ◽  
pp. 1-11 ◽  
Author(s):  
Mohammed A. Al-Madol ◽  
Mohammed Shaqura ◽  
Thilo John ◽  
Rudolf Likar ◽  
Reham Said Ebied ◽  
...  
Keyword(s):  
Rheumatoid Arthritis ◽  
Inflammatory Mediators ◽  
Inflammatory Process ◽  
Plasma Cells ◽  
Immune Cell ◽  
Proinflammatory Mediators ◽  
Diagnostic Arthroscopy ◽  
Anti Inflammatory ◽  
Joint Trauma ◽  
Specific Mrna

Synovial injury and healing are complex processes including catabolic effects by proinflammatory cytokines and anabolic processes by anti-inflammatory mediators. Here we examined the expression of pro- versus anti-inflammatory mediators in synovium of patients with diagnostic arthroscopy (control), joint trauma (JT), osteoarthritis (OA), and rheumatoid arthritis (RA). Synovial samples from these patients were subjected to RT-PCR and double immunofluorescence confocal microscopy of pro- and anti-inflammatory mediators as well as immune cell markers. Interestingly, pro- and anti-inflammatory mediators were expressed predominantly in granulocytes in patients with JT and in macrophages, lymphocytes, and plasma cells in patients with OA and RA. Interestingly, parallel to the severity of inflammation, proinflammatory mediators IL-1β, TNF-α, and 5-LOX specific mRNA as well as immunoreactive (IR) cells were significantly more abundant in patients with RA and JT than in those with OA. However, anti-inflammatory mediators 15-LOX, FPR2, and IL-10 specific mRNA as well as IR cells were significantly more abundant in patients with OA than in those with JT and RA. These findings show that upregulation of proinflammatory mediators contributes to the predominantly catabolic inflammatory process in JT and RA synovium, whereas upregulation of anabolic anti-inflammatory mediators counteracts inflammation resulting in the inferior inflammatory process in OA synovium.

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