Reduction of paw edema and liver oxidative stress in carrageenan-induced acute inflammation by Lobaria pulmonaria and Parmelia caperata, lichen species, in mice

Author(s):  
Samira Salem ◽  
Essaid Leghouchi ◽  
Rachid Soulimani ◽  
Jaouad Bouayed

Abstract. Paw edema volume reduction is a useful marker in determining the anti-inflammatory effect of drugs and plant extracts in carrageenan-induced acute inflammation. In this study, the anti-inflammatory effect of Lobaria pulmonaria (LP) and Parmelia caperata (PC), two lichen species, was examined in carrageenan-induced mouse paw edema test. Compared to the controls in carrageenan-induced inflammation (n = 5/group), our results showed that pretreatment by single oral doses with PC extract (50–500 mg/kg) gives better results than LP extract (50–500 mg/kg) in terms of anti-edematous activity, as after 4 h of carrageenan subplantar injection, paw edema formation was inhibited at 82–99% by PC while at 35–49% by LP. The higher anti-inflammatory effect of PC, at all doses, was also observed on the time-course of carrageenan-induced paw edema, displaying profile closely similar to that obtained with diclofenac (25 mg/kg), an anti-inflammatory drug reference (all p < 0.001). Both LP and PC, at all doses, significantly ameliorated liver catalase (CAT) activity (all p < 0.05). However, superoxide dismutase (SOD) activity, glutathione peroxidase (GPx) activity and glutathione (GSH) levels were found increased in liver of PC- compared to LP-carrageenan-injected mice. Our findings demonstrated on one hand higher preventive effects of PC compared to LP in a mouse carrageenan-induced inflammatory model and suggested, on the other hand, that anti-inflammatory effects elicited by the two lichens were closely associated with the amelioration in the endogenous antioxidant status of liver.

2021 ◽  
Vol 2021 ◽  
pp. 1-10
Author(s):  
Chan Jong Yoon ◽  
Won Seok Choi ◽  
Hyun Sik Kang ◽  
Hong Jo Kim ◽  
Wang Tae Lee ◽  
...  

Pinus thunbergii Parl. (PTP) has traditionally been used for edible and medicinal purposes to treat several disorders, including diabetes and neuralgia. Therefore, this study sought to evaluate the inhibitory effects of PTP leaf ethanol extracts on acute inflammation. Moreover, the reactive oxygen species (ROS) scavenging activity, superoxide dismutase (SOD) activity, lipopolysaccharide (LPS)-induced nitric oxide (NO) generation, and H2O2-induced lipid peroxidation capacity of PTP were assessed in vitro in RAW 264.7 macrophages. Our results suggest that PTP prevents cell damage caused by oxidative free radicals and downregulates the expression of LPS-induced inflammation-associated factors including inducible nitric oxidase synthetase (iNOS), cyclooxygenase-2 (COX-2), and prostaglandin E2 (PGE2). PTP inhibited NO production by 53.5% ( P < 0.05 ) and iNOS expression by 71.5% ( P < 0.01 ) at 100 µg/mL. PTP at 100 µg/mL also inhibited ROS generation by 58.2% ( P < 0.01 ) and SOD activity by 29.3%, as well as COX-2 expression by 83.3% ( P < 0.01 ) and PGE2 expression by 98.6% ( P < 0.01 ). The anti-inflammatory effects of PTP were confirmed in vivo using an arachidonic acid (AA)-induced ear edema mouse model. Ear thickness and myeloperoxidase (MPO) activity were evaluated as indicators of inflammation. PTP inhibited edema formation by 64.5% ( P < 0.05 ) at 1.0 mg/ear. A total of 16 metabolites were identified in PTP extracts and categorized into subgroups, including two phenolic acids (mainly quinic acid), seven flavonoids, five lignans, one sesquiterpenoid, and one long-chain fatty acid. Therefore, our results suggest that PTP possesses anti-inflammatory properties.


2020 ◽  
Vol 11 (2) ◽  
pp. 168
Author(s):  
Gabriela Fernandes Oliveira Marques ◽  
Arcelina Pacheco Cunha ◽  
Francisco Sávio Machado Lima Gabriel ◽  
Nágila Maria Pontes Silva Ricardo ◽  
Maria Gonçalves Pereira ◽  
...  

Ximenia americana or “ameixa-do-sertão” is a plant used in the folk medicine of Northeast-Brazil in inflammatory and painful processes. The literature has shown anti-inflammatory and antinociceptive activities for the aqueous or hydroalcoholic extracts and polysaccharide fractions of X. americana stem barks. This study investigated the anti-inflammatory effect of polysaccharide fractions and tea prepared from X. americana stem barks in mice models of paw edema and peritonitis induced by zymosan. Tea (50,100, 150 mg/kg; p.o.) and polysaccharide fractions (FI, FII: 1 mg/kg; i.v.), containing carbohydrate (44.8, 25.0, 44.4%) and polyphenols (28.3, 0.78, 1.50%), respectively, were administered 1 h before zymosan (500 mg; s.c. or i.p). FT-IR analysis of the tea showed bands indicating C=O and C-O groups vibration, typical of phenolic compounds. Zymosan-induced paw edema (AUC: 355.0 ± 38.1) was inhibited by the tea by 38% (100 mg/kg) and 36% (150 mg/kg). FI and FII reduced the edema by 47% (933.8 ± 158.1 AUC) and 30% (1263 ± 124.8 AUC), respectively. Zymosan i.p. induced hypernociception (4.7 ± 0.3 g) and increased the peritoneal leukocyte migration (10979 ± 1475 cells/ml). FII increased by 66% the nociceptive threshold (13.87 ±1.59 g) and reduced by 63% leukocyte migration (3993 ± 439.1 cells/ml). FII decreased plasma protein by 64% (92.6 ± 4.5 vs. zymosan: 119.6 ± 5.4 mg/ml) and MDA by 63% (57.5 ± 3.5 vs. zymosan: 88.9 ± 6.3 mg/ml). The tea, containing polysaccharides and polyphenols, and polysaccharide fractions FI/FII of X. americana barks possess antiinflammatory effect in mice models of acute inflammation induced by zymosan.


Molecules ◽  
2021 ◽  
Vol 26 (12) ◽  
pp. 3701
Author(s):  
Salah E. M. Eltom ◽  
Ahmed A. H. Abdellatif ◽  
Hamzah Maswadeh ◽  
Mohsen S. Al-Omar ◽  
Atef A. Abdel-Hafez ◽  
...  

The ostrich oil of Struthio camelus (Ratite) found uses in folk medicine as an anti-inflammatory in eczema and contact dermatitis. The anti-inflammatory effect of a γ-lactone (5-hexyl-3H-furan-2-one) isolated from ostrich oil and its formulated nano-emulsion in formalin-induced paw edema was investigated in this study. Ostrich oil was saponified using a standard procedure; the aqueous residue was fractionated, purified, and characterized as γ-lactone (5-hexyl-3H-furan-2-one) through the interpretation of IR, NMR, and MS analyses. The γ-lactone was formulated as nano-emulsion using methylcellulose (MC) for oral solubilized form. The γ-lactone methylcellulose nanoparticles (γ-lactone-MC-NPs) were characterized for their size, shape, and encapsulation efficiency with a uniform size of 300 nm and 59.9% drug content. The γ-lactone was applied topically, while the formulated nanoparticles (NPs) were administered orally to rats. A non-steroidal anti-inflammatory drug (diclofenac gel) was used as a reference drug for topical use and ibuprofen suspension for oral administration. Edema was measured using the plethysmograph method. Both γ-lactone and γ-lactone-MC-NPs showed reduction of formalin-induced paw edema in rats and proved to be better than the reference drugs; diclofenac gel and ibuprofen emulsion. Histological examination of the skin tissue revealed increased skin thickness with subepidermal edema and mixed inflammatory cellular infiltration, which were significantly reduced by the γ-lactone compared to the positive control (p-value = 0.00013). Diuretic and toxicity studies of oral γ-lactone-MC-NPs were performed. No diuretic activity was observed. However, lethargy, drowsiness, and refusal to feeding observed may limit its oral administration.


Biomedicines ◽  
2021 ◽  
Vol 9 (7) ◽  
pp. 716
Author(s):  
Oksana Sintsova ◽  
Irina Gladkikh ◽  
Anna Klimovich ◽  
Yulia Palikova ◽  
Viktor Palikov ◽  
...  

Currently the TRPV1 (transient receptor potential vanilloid type 1) channel is considered to be one of the main targets for pro-inflammatory mediators including TNF-α. Similarly, the inhibition of TRPV1 activity in the peripheral nervous system affects pro-inflammatory mediator production and enhances analgesia in total. In this study, the analgesic and anti-inflammatory effects of HCRG21, the first peptide blocker of TRPV1, were demonstrated in a mice model of carrageenan-induced paw edema. HCRG21 in doses of 0.1 and 1 mg/kg inhibited edema formation compared to the control, demonstrated complete edema disappearance in 24 h in a dose of 1 mg/kg, and effectively reduced the productionof TNF-α in both doses examined. ELISA analysis of blood taken 24 h after carrageenan administration showed a dramatic cytokine value decrease to 25 pg/mL by HCRG21 versus 100 pg/mL in the negative control group, which was less than the TNF-α level in the intact group (40 pg/mL). The HCRG21 demonstrated potent analgesic effects on the models of mechanical and thermal hyperalgesia in carrageenan-induced paw edema. The HCRG21 relief effect was comparable to that of indomethacin taken orally in a dose of 5 mg/kg, but was superior to this nonsteroidal anti-inflammatory drug (NSAID) in duration (which lasted 24 h) in the mechanical sensitivity experiment. The results confirm the existence of a close relationship between TRPV1 activity and TNF-α production once again, and prove the superior pharmacological potential of TRPV1 blockers and the HCRG21 peptide in particular.


2001 ◽  
Vol 280 (5) ◽  
pp. G974-G978 ◽  
Author(s):  
Madhav Bhatia ◽  
Ashok K. Saluja ◽  
Vijay P. Singh ◽  
Jean-Louis Frossard ◽  
Hong-Sik Lee ◽  
...  

Complement factor C5a acting via C5a receptors (C5aR) is recognized as an anaphylotoxin and chemoattractant that exerts proinflammatory effects in many pathological states. The effects of C5a and C5aR in acute pancreatitis and in pancreatitis-associated lung injury were evaluated using genetically altered mice that either lack C5aR or do not express C5. Pancreatitis was induced by administration of 12 hourly injections of cerulein (50 μg/kg ip). The severity of pancreatitis was determined by measuring serum amylase, neutrophil sequestration in the pancreas, and acinar cell necrosis. The severity of lung injury was evaluated by measuring neutrophil sequestration in the lung and pulmonary microvascular permeability. In both strains of genetically altered mice, the severity of pancreatitis and pancreatitis-associated lung injury was greater than that noted in the comparison wild-type strains of C5aR- and C5-sufficient animals. This exacerbation of injury in the absence of C5a function indicates that, in pancreatitis, C5a exerts an anti-inflammatory effect. Potentially, C5a and its receptor are capable of both promoting and reducing the extent of acute inflammation.


Author(s):  
Phebe Hendra ◽  
Fenty . ◽  
Putu Ririn Andreani ◽  
Bernadetha Maria Estika Pangestuti ◽  
Jeffry Julianus

Objective: To investigate the antihyperlipidemic, anti-inflammatory and analgesic properties of of E. longifolia root extract in animal models.Methods: In this study, glucose-fructose enriched diet-induced hyperlipidemia, carrageenan-induced paw edema and acetic acid-induced writhing were used to evaluate the anti-hypertriglyceridemia, anti-inflammatory and analgesic activities, respectively. At the end of the experiment of glucose-fructose enriched diet-induced hyperlipidemia, blood samples were collected and estimation of blood lipids were carried out. Edema thickness was measured using digital caliper at 0, 15, 30, 45, 60, 90, 120, 150, 180, 210, 240, 270, 300, 330, and 360 min after carrageenan injection. The number of abdominal writhing for each mouse was observed and counted during a period of 1 h post injection of acetic acid.Results: E. longifolia root extract demonstrated a significant reduction of triglyceride levels (p<0.05) compared with the control group in glucose-fructose enrich diet in rats. In anti-inflammatory test, the extract significantly inhibited the carrageenan induced paw edema formation (p<0.05). The extract also significantly decreased the number of writhing in acetic acid-induced mice (p<0.05).Conclusion: E. longifolia root extract shown a significant anti-hypertriglyceridemia, anti-inflammatory and analgesic activities. Further studies are needed to determine mechanisms for its acitivities of E. longifolia root extract.


Inflammation ◽  
2020 ◽  
Author(s):  
Sachin S. Sakat ◽  
Kamaraj Mani ◽  
Yulia O. Demidchenko ◽  
Evgeniy A. Gorbunov ◽  
Sergey A. Tarasov ◽  
...  

Author(s):  
Mustafa H. Ali Alsafi ◽  
Muthanna S. Farhan

Mefenamic acid (MA) is one of the non-steroidal anti-inflammatory drugs, it is widely used probably due to having both anti-inflammatory and analgesic activity, the main side effects of mefenamic acid include gastrointestinal tract (GIT) disturbance mainly diarrhea, peptic ulceration, and gastric bleeding. The analgesic effects of NSAIDs are probably linked to COX-2 inhibition, while COX-1 inhibition is the major cause of this classic adverse effects. Introduction of thiazolidinone may lead to the increase in the bulkiness leads to the preferential inhibition of COX-2 rather than COX-1 enzyme. The study aimed to synthesize derivatives of mefenamic acid with more potency and to decrease the drug's potential side effects, new series of 4-thiazolidinone derivatives of mefenamic acid were synthesized IVa-g. The synthetic procedures for target compounds and their intermediates are designed to be as follows: acylation of secondary amine of mefenamic acid by chloroacetylchloride to produce compound (I), then reaction between compound (I) and hydrazine hydrate to form hydrazine derivative of mefenamic acid (compound II). After that, Schiff base formation by addition of seven benzaldehyde derivatives and finally, cyclization in presence of thioglycolic acid to form 4-thiazolidinone heterocyclic ring. The characterization of the titled compounds has been established on the basis of their spectral FTIR, 1HNMR data, and by measurements of their physical properties. In vivo acute anti-inflammatory effect of the synthesized compounds was evaluated in rats using egg-white induced edema model of inflammation. The tested compounds and the reference drug produced significant reduction of paw edema with respect to the effect of dimethyl sulfoxide 10%v/v (control group). Compound IVe showed more potent effect than mefenamic acid at 240-300 min, while at time 300 min, compounds IVa and IVd exhibit more potent anti-inflammatory effect than mefenamic acid (50mg/kg, i.p.) as they reduced paw edema significantly more than mefenamic acid at mentioned intervals (p<0.05) . On the other hand compound IVc exhibited lower anti-inflammatory effect.


2013 ◽  
Vol 2013 ◽  
pp. 1-4 ◽  
Author(s):  
Cuauhtemoc Pérez González ◽  
Roberto Serrano Vega ◽  
Marco González-Chávez ◽  
Miguel Angel Zavala Sánchez ◽  
Salud Pérez Gutiérrez

We investigated the anti-inflammatory activity ofSenecio salignus. This medicinal plant is often used in Mexico for the treatment of fever and rheumatism. Chloroform and methanol extracts of the plant were tested on 12-O-tetradecanoylphorbol-13-acetate- (TPA-) induced edema in mice ears. The methanol extract of the plant inhibited edema by36±4.4% compared with the control, while the chloroform extract exhibited an even greater level of inhibition (64.1%). The chloroform extract was then fractionated, and the composition of the active fraction was determined by GC-MS. The anti-inflammatory activity of this fraction was then tested on TPA-induced ear edema in mice, and we found that the active fraction could inhibit edema by 46.9%. The anti-inflammatory effect of the fraction was also tested on carrageenan-induced paw edema in rats at doses of 100 mg/kg; a58.9±2.8% reduction of the edema was observed 4 h after administration of carrageenan, and the effect was maintained for 5 h.


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