scholarly journals Characterisation of nociception and inflammation observed in a traumatic muscle injury model in rats

2021 ◽  
Author(s):  
Sabrina Qader Kudsi ◽  
Gabriela Trevisan
Keyword(s):  
Muscle Pain ◽  
Muscle Injury ◽  
Gastrocnemius Muscle ◽  
Inflammatory Cells ◽  
Cold Allodynia ◽  
Injury Model ◽  
Locomotor Impairment ◽  
Male Wistar Rats ◽  
Anti Inflammatory ◽  
Lactate Levels

Introduction: Muscle pain is the most prevalent type of pain in the world, but treatment remains ineffective. Objective: Therefore, this study characterised the nociception and inflammation in a traumatic muscle injury model in rats Methods: A single blunt trauma impact on the right gastrocnemius muscle of male Wistar rats. Procedures were approved by the Institutional Committee for Animal Use of the Federal University of Santa Maria (#6579280218/2018). Animals were divided into four groups (sham/no treatment; sham/diclofenac 1%; injury/no treatment; injury/diclofenac 1%) and the topical treatment with cream of 1% monosodium diclofenac (applied at 2, 6, 12, 24, and 46 h after muscle injury; 200 mg/muscle) was used as an anti-inflammatory control. Nociception (mechanical and cold allodynia, or nociceptive score) and locomotor activity were evaluated at 26 and 48 h after injury. Also, inflammatory and oxidative parameters were evaluated in gastrocnemius muscle and the creatine kinase (CK) activity and lactate levels in plasma and serum, respectively. Results: Muscle injury caused mechanical and cold allodynia, and increased nociceptive scores, without inducing locomotor impairment. This model also increased the inflammatory cells infiltration (seen by myeloperoxidase and Nacetyl-β-D-glucosaminidase activities and histological procedure), nitric oxide, IL- 1β, IL-6, and dichlorofluorescein levels in muscle samples; and CK activity and lactate levels in serum. The treatment with 1% monosodium diclofenac reduced inflammatory cells infiltration, dichlorofluorescein, and lactate levels. Conclusion: In this view, we characterised the traumatic muscle injury as a reproducible model of muscle pain, which make it possible to evaluate promising antinociceptive and anti-inflammatory therapies.

scholarly journals Naringin and Hesperidin Counteract Diclofenac-Induced Hepatotoxicity in Male Wistar Rats via Their Antioxidant, Anti-Inflammatory, and Antiapoptotic Activities

2021 ◽  
Vol 2021 ◽  
pp. 1-14
Author(s):  
Rasha A. Hassan ◽  
Walaa G. Hozayen ◽  
Haidy T. Abo Sree ◽  
Hessah M. Al-Muzafar ◽  
Kamal A. Amin ◽  
...  
Keyword(s):  
Wistar Rats ◽  
Liver Lipid ◽  
Diclofenac Sodium ◽  
Elevated Serum ◽  
Inflammatory Cells ◽  
Hepatic Necrosis ◽  
Hydropic Degeneration ◽  
Tnf Α ◽  
Male Wistar Rats ◽  
Anti Inflammatory

This study is aimed at evaluating the preventive effect and at suggesting the mode of actions of naringin and hesperidin and their combination in diclofenac-induced hepatotoxicity. Male Wistar rats, intraperitoneally injected with diclofenac sodium (3 mg/kg b.wt/day), were orally treated with naringin (20 mg/kg b.wt/day) and hesperidin (20 mg/kg b.wt/day) and their combination for 4 weeks. The administrations of naringin and hesperidin to diclofenac-injected rats led to a significant decrease in the elevated serum ALT, AST, LDH, ALP, GGT, total bilirubin, TNF-α, and IL-17 levels as well as liver lipid peroxidation and liver p53 and caspase-3 mRNA expressions. In contrast, serum IL-4 level, liver GSH content, and liver GPx and SOD activities increased. In association, diclofenac-induced deleterious histological alterations including hydropic degeneration, cytoplasmic vacuolization, apoptosis, and focal hepatic necrosis of hepatocytes associated with inflammatory cells’ infiltration were remarkably improved by treatments with naringin and hesperidin. In conclusion, naringin, hesperidin, and their combination, which was the most potent, counteract diclofenac-induced liver injury via antioxidant, anti-inflammatory, and antiapoptotic actions. Thus, this study recommends the use of naringin and hesperidin or their combination to resolve the side effects of drugs like diclofenac on the liver.

scholarly journals Jumlah sel makrofag gingiva tikus wistar jantan yang diinduksi periodontitis setelah pemberian ekstrak etanolik kulit manggis Amount of machropahges cells in periodontitis-induced wistar rats after mangosteen rind etanolic extract administration

2013 ◽  
Vol 12 (3) ◽  
pp. 135
Author(s):  
Rendra Chriestedy Prasetya
Keyword(s):  
Wistar Rats ◽  
Inflammatory Cells ◽  
Anova Test ◽  
Significant Difference ◽  
Male Wistar Rats ◽  
Anti Inflammatory

Periodontitis is characterized with macrophages infiltration that is used to fagocyt bacteria which infiltrated atgingiva. Mangosteen rind contains xantone, an anti-inflammatory substance which inhibits the synthesis of PGE2 andtherefore reduce inflammatory cells infiltration. This research aimed to study machropahges cells infiltration inperiodontitis-induced wistar rats after administration of mangosteen rind etanolic extract. Forty eight male wistar ratswere induced periodontitis for 7 days. After the ligation was taken out, the rats were divided into 4 groups, and treatedorally with mangosteen rind extract 60 mg/kg BB, 30 mg/kg BB, ibuprofen and saline. The rats were sacrified on the 1st, 3rd, 4th, and 7th day after the treatment. Their anterior lower jaws were processed histologically and stained withhematoxylin eosin. Two-way anova test showed a significant difference among groups (p<0.05). It was concluded thatmangosteen rind etanolic extract reduced the number of macropaghes cells gingiva in periodontitis male wistar rats.

scholarly journals The effect of bitter gourd (Momordica charantia) ethanolic extract on inflammatory infiltrates and NF-κB activation in periodontitis

2019 ◽  
Vol 1 (1) ◽  
pp. 6
Author(s):  
Aryudhi Armis ◽  
Tetiana Haniastuti ◽  
Heni Susilowati
Keyword(s):  
Alveolar Bone ◽  
Inflammatory Responses ◽  
Ethanolic Extract ◽  
Inflammatory Cells ◽  
Momordica Charantia ◽  
Bitter Gourd ◽  
Tnf Α ◽  
Male Wistar Rats ◽  
Anti Inflammatory ◽  
Inflammatory Infiltrates

Periodontitis is a periodontal disease involving the gingiva, periodontal ligament, cementum, and alveolar bone due to an inflammatory process. Virulence factors of periodontopathogens and inflammatory responses in periodontitis can stimulate nuclear factor-kappa B (NF-κB) activity. Charantoside c and Momordicosides g in bitter gourd prevent NF-κB activation stimulated by TNF-α in HepG2 cells. This study aims to determine the effect of bitter gourd fruit (Momordica charantia) ethanolic extract as an anti-inflammatory substance on the level of inflammatory infiltrates and the number of cells that experience NF-κB activation in the periodontitis model. Eighty male Wistar rats were divided into 5 groups. The mandibular incisors were ligated for 14 days to induce periodontitis. Each group was given Momordica charantia extract of 500 mg/kg BW, 250 mg/kg BW, and 100 mg/kg BW; ibuprofen 100 mg/kg BW; and aquades orally using oral gavage on the day 14. Rat necropsy was carried out on day 1, 3, 5, and 7 after giving the substances. Taking out the lower jaw was done to make tissue preparations followed by staining them with hematoxylin eosin (HE). Immunohistochemicalanalysis was performed to observe cells that were positive for NF-κB activation. The results showed a decrease in the density of inflammatory infiltrates in all groups, except for those given aquades. The number of inflammatory cells ofneutrophils, macrophages, and lymphocytes that experienced NF-κB activation showed the most effective decrease in the group of Momordica charantia 500 mg/kg BW, on the 7th day. The conclusion of this study is that ethanolic extractof Momordica charantia has an anti-inflammatory effect and prevents the activation of NF-kB in rat gingival induced by periodontitis. The highest effect was found at a dose of 500 mg/kg BW on day 7 after giving of extracts.

scholarly journals The Anti-Inflammatory Effects of CXCR5 in the Mice Retina following Ischemia-Reperfusion Injury

2019 ◽  
Vol 2019 ◽  
pp. 1-10 ◽  
Author(s):  
Xing Cao ◽  
Wen Li ◽  
Ying Liu ◽  
Hu Huang ◽  
Chang-Hua Ye
Keyword(s):  
Reperfusion Injury ◽  
Chemokine Receptor ◽  
Ischemia Reperfusion Injury ◽  
Ischemia Reperfusion ◽  
Inflammatory Cells ◽  
Internal Limiting Membrane ◽  
Pathological Process ◽  
Wild Mice ◽  
Injury Model ◽  
Anti Inflammatory

Object. Retinal ischemia-reperfusion (I/R) injury is a common pathological process in many ophthalmic diseases; there are no effective therapeutic approaches available currently. Increasing evidence indicates that microglia mediated neuroinflammation plays an important role in the retinal I/R injury. In this study, we aimed to investigate the roles of chemokine receptor CXCR5 in the pathological process of retinal I/R injury model. Method. Retinal I/R injury model was established in CXCR5 knockout and wild mice by the acute elevation of intraocular pressure (AOH) for 60 minutes, and the eyes were harvested for further analyses. The cellular location of CXCR5 was detected by immunofluorescence staining; the expressions of CXCR5 and CXCL13 after I/R injury were analyzed by quantitative RT-PCR. The retinal microglia were detected as stained for Iba1 (+). Leakage of inflammatory cells was observed on the H&E stained cryosections. The protein expression and quantification of zonula occludens (ZO-1) were determined by Western blotting and densitometry. Capillary degeneration was identified on the intact retinal vasculatures prepared by trypsin digestion. Results. The number of activated microglia marked by Iba1 antibody in the retina was increased after retinal I/R injury in both KO and WT mice, more significant in KO mice. The leakage of inflammatory cells was observed largely at 2 days after injury, but there was no or little leakage at 7 days. The number of inflammatory cells (mainly neutrophils) was greater in CXCR5 KO mice than in WT mice, mainly located under internal limiting membrane. CXCR5 deficiency led to more ZO-1 degradation in CXCR5 KO mice compared to C57BL6 WT mice 2 days after reperfusion. The cellular capillaries were also significantly increased in the KO mice compared to the WT mice. Conclusion. Our findings suggest that the chemokine receptor CXCR5 may protect retina from ischemia-reperfusion injury by its anti-inflammatory effects. Thus, CXCR5 may be a promising therapeutic target for the treatment of retinal I/R injury.

scholarly journals Anti-inflammatory genes in PBMCs post-spontaneous intracerebral hemorrhage

2021 ◽  
Vol 12 (1) ◽  
pp. 58-66
Author(s):  
Doan Nguyen ◽  
Vi Tran ◽  
Alireza Shirazian ◽  
Cruz Velasco-Gonzalez ◽  
Ifeanyi Iwuchukwu
Keyword(s):  
Intracerebral Hemorrhage ◽  
Negative Correlation ◽  
Mononuclear Cells ◽  
Inflammatory Cells ◽  
Favorable Outcome ◽  
Hospital Length Of Stay ◽  
Spontaneous Intracerebral Hemorrhage ◽  
Hematoma Volume ◽  
Peripheral Blood Mononuclear ◽  
Anti Inflammatory

Abstract Background Neuroinflammation is important in the pathophysiology of spontaneous intracerebral hemorrhage (ICH) and peripheral inflammatory cells play a role in the clinical evolution and outcome. Methodology Blood samples from ICH patients (n = 20) were collected at admission for 5 consecutive days for peripheral blood mononuclear cells (PBMCs). Frozen PBMCs were used for real-time PCR using Taqman probes (NFKB1, SOD1, PPARG, IL10, NFE2L2, and REL) and normalized to GAPDH. Data on hospital length of stay and modified Rankin score (MRS) were collected with 90-day MRS ≤ 3 as favorable outcome. Statistical analysis of clinical characteristics to temporal gene expression from early to delayed timepoints was compared for MRS groups (favorable vs unfavorable) and hematoma volume. Principle findings and results IL10, SOD1, and REL expression were significantly higher at delayed timepoints in PBMCs of ICH patients with favorable outcome. PPARG and REL increased between timepoints in patients with favorable outcome. NFKB1 expression was not sustained, but significantly decreased from higher levels at early onset in patients with unfavorable outcome. IL10 expression showed a negative correlation in patients with high hematoma volume (>30 mL). Conclusions and significance Anti-inflammatory, pro-survival regulators were highly expressed at delayed time points in ICH patients with a favorable outcome, and IL10 expression showed a negative correlation to high hematoma volume.

scholarly journals Hyaluronic Acid-Modified and TPCA-1-Loaded Gold Nanocages Alleviate Inflammation

Pharmaceutics ◽  
2019 ◽  
Vol 11 (3) ◽  
pp. 143 ◽  
Author(s):  
Jingnan Zhao
Keyword(s):  
Hyaluronic Acid ◽  
Inflammatory Cells ◽  
Oxygen Species ◽  
Necrosis Factor Alpha ◽  
Tnf Α ◽  
Nanogold Particles ◽  
Gold Nanocages ◽  
Factor Alpha ◽  
Anti Inflammatory ◽  
Necrosis Factor

Gold nanocages (AuNCs) are biocompatible and porous nanogold particles that have been widely used in biomedical fields. In this study, hyaluronic acid (HA) and peptide- modified gold nanocages (HA-AuNCs/T/P) loaded with 2-[(aminocarbonyl)amino]-5-(4-fluorophenyl)-3-thiophenecarboxamide (TPCA-1) were prepared to investigate their potential for combating inflammation. TPCA-1 was released from AuNCs, intracellularly when HA was hydrolyzed by hyaluronidase. HA-AuNCs/T/P show a much higher intracellular uptake than AuNCs/T/P, and exhibit a much higher efficacy on the suppression of tumor necrosis factor alpha (TNF-α) and interleukin 6 (IL-6) than free TPCA-1, suggesting great improvement to the anti-inflammatory efficacy of TPCA-1 through the application of AuNCs. HA-AuNCs/T/P can also reduce the production of reactive oxygen species in inflammatory cells. This study suggests that HA-AuNCs/T/P may be potential agents for anti-inflammatory treatment, and are worthy of further investigation.

Glycogen content is affected differently in acute pulmonary and extra-pulmonary lung injury

2009 ◽  
Vol 28 (9) ◽  
pp. 583-590 ◽  
Author(s):  
EL Borges ◽  
MB Pinheiro ◽  
A. Eleto-Silva ◽  
MV Caliari ◽  
MG Rodrigues-Machado
Keyword(s):  
Lung Injury ◽  
Gastrocnemius Muscle ◽  
Glycogen Content ◽  
Inflammatory Cells ◽  
Severe Form ◽  
Control Groups ◽  
Biochemical Aspect ◽  
Extra Pulmonary ◽  
Anthrone Reagent ◽  
Different Tissues

Acute respiratory distress syndrome (ARDS) is the most severe form of acute lung injury (ALI). The aim of the present study was to investigate whether paraquat-induced acute pulmonary and extra-pulmonary lung injury (ALI-P and ALI-EX, respectively), in rats, affects glycogen content in different tissues. This measurement could indicate performance limitations of tissues, a new biochemical aspect of ARDS. ALI-P and ALI-EX were induced by injection into the trachea (0.5 mg/kg) and intraperitoneally (20 mg/kg) 24 hours prior to tissue collection. The control groups (CTRL) received the same volume of saline. Glycogen content (mg/g tissue) from different tissues was measured using the anthrone reagent. Glycogen content in the heart and kidney was higher in the ALI-EX group than the CTRL-EX group. Glycogen content in the gastrocnemius muscle was lower in the ALI-EX group than the CTRL-EX group. However, there were no significant differences in glycogen content in the diaphragm in the ALI-EX and ALI-P groups or in the gastrocnemius, heart and kidney in the ALI-P group when compared to the respective controls. ALI-EX caused a greater thickening of the alveolar walls, more areas of atelectasis and a greater abundance of inflammatory cells in comparison to ALI-P. These results demonstrate that glycogen content in ALI, induced by an herbicide that is highly toxic to humans and animals, is altered in different tissues depending on the location of the injury.

scholarly journals Tongluo Zhitong Prescription Alleviates Allodynia, Hyperalgesia, and Dyskinesia in the Chronic Constriction Injury Model of Rats

2017 ◽  
Vol 2017 ◽  
pp. 1-6 ◽  
Author(s):  
Zhiyong Wang ◽  
Jianwei Wang ◽  
Lihua Qin ◽  
Weiguang Zhang
Keyword(s):  
Neuropathic Pain ◽  
Mechanical Allodynia ◽  
Chronic Constriction Injury ◽  
Catgut Suture ◽  
Cold Allodynia ◽  
Injury Model ◽  
Neuropathic Pain Model ◽  
Gait Function ◽  
Chronic Constriction Injury Model ◽  
Heat Hyperalgesia

Neuropathic pain is common in clinical practice. Exploration of new drug therapeutics has always been carried out for more satisfactory effects and fewer side-effects. In the present study, we aimed to investigate effects of Tongluo Zhitong Prescription (TZP), a compounded Chinese medicine description, on neuropathic pain model of rats with chronic constriction injury (CCI). The CCI model was established by loosely ligating sciatic nerve with catgut suture, proximal to its trifurcation. The static and dynamic allodynia, heat hyperalgesia, mechanical allodynia, cold allodynia, and gait were assessed. Our results showed that TZP alleviated CCI-induced static and dynamic allodynia, suppressed heat hyperalgesia and cold and mechanical allodynia, and improved gait function. These results suggest that TZP could alleviate neuropathic pain. Further experiments are needed to explore its mechanisms.

Oxamate Enhances the Anti-Inflammatory and Insulin-Sensitizing Effects of Metformin in Diabetic Mice

Pharmacology ◽  
2017 ◽  
Vol 100 (5-6) ◽  
pp. 218-228 ◽  
Author(s):  
Mu-chao Wu ◽  
Wei-ran Ye ◽  
Yi-jia Zheng ◽  
Shan-shan Zhang
Keyword(s):  
Blood Lactate ◽  
Cell Mass ◽  
Lactate Production ◽  
Beta Cell Mass ◽  
Serum Lactate ◽  
Blood Levels ◽  
Anti Inflammatory ◽  
Lactate Levels ◽  
Blood Lactate Levels

Metformin (MET) is the first-line drug for treating type 2 diabetes mellitus (T2DM). However, MET increases blood lactate levels in patients with T2DM. Lactate possesses proinflammatory properties and causes insulin resistance (IR). Oxamate (OXA), a lactate dehydrogenase inhibitor, can decrease tissue lactate production and blood lactate levels. This study was conducted to examine the effects of the combination of OXA and MET on inflammation, and IR in diabetic db/db mice. Supplementation of OXA to MET led to lowered tissue lactate production and serum lactate levels compared to MET alone, accompanied with further decreased tissue and blood levels of pro-inflammatory cytokines, along with better insulin sensitivity, beta-cell mass, and glycemic control in diabetic db/db mice. These results show that OXA enhances the anti-inflammatory and insulin-sensitizing effects of MET through the inhibition of tissue lactate production in db/db mice.

scholarly journals Evaluation of analgesic and anti-inflammatory activity of ethanolic extract of Enhydra fluctuans on male wistar rats

2021 ◽  
Vol 9 (1) ◽  
pp. 1-7
Author(s):  
Kishor Kumar Roy ◽  
Md. Kabirul Islam Mollah ◽  
Md. Masud Reja ◽  
Dibyendu Shil ◽  
Ranjan Kumar Maji
Keyword(s):  
Wistar Rats ◽  
Pain Threshold ◽  
Ethanolic Extract ◽  
Inflammatory Activity ◽  
Paw Edema ◽  
Hot Plate ◽  
Plate Method ◽  
Traditional System ◽  
Male Wistar Rats ◽  
Anti Inflammatory

Enhydra fluctuations an edible semi-aquatic vegetable plant are widely used in the traditional system of medicine. Ethanolic extract of Enhydra fluctuans was screened for analgesic & anti-inflammatory activity. Analgesic activity was evaluated by the hot plate method and anti-inflammatory activity was evaluated by formalin induce paw edema in Wistar rats (male). Ethanolic extract dose of 300 mg/kg reduce formalin induce paw inflammation and also increased the pain threshold in rats evidenced by hot plate method. The experimental results concluded that Enhydra fluctuans have significant analgesic and anti-inflammatory activity may due to flavonoid and phenolic compound content.

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