Anti-inflammatory Activity Of Methanol Extract Research Articles

Antinociceptive and Anti-inflammatory Effects of Methanolic Extract of Laurencia caspica

Introduction: Seaweeds are valuable resources for the discovery of efficient and safe drugs for pain treatment. In the present investigation, we evaluated the antinociceptive and anti-inflammatory properties of, methanolic extract of Laurencia caspica, a red algae, in mice models. Methods: The analgesic effect of methanolic extract of L. caspica was assessed by hot-plate and acetic acid-induced writhing tests in male Swiss albino mice (weight = 20-25 g). The anti-inflammatory activity of methanolic extract of L. caspica was also evaluated by formalin-induced ear edema and xylene-induced paw edema tests. Results: The total flavonoid content of the extract was estimated as 0.0537 mg quercetin/g extract. Both first and second phases of the nociception were significantly inhibited at a dose of 120 mg/kg of methanolic extract of L. caspica. The observed anti-inflammatory effect was dose-dependent. Acetic acid-induced writhing test and hot plate test showed that the extract significantly reduced pain in all evaluated doses (15, 30, 60, and 120 mg/kg). The antinociceptive activity of the methanolic extract was significantly reduced by naloxone (4 mg/kg). Moreover, the extract significantly reduced paw edema at the dose of 120 mg/kg in all the animals. Conclusion: Methanolic extract of L. caspica exhibited central analgesic effect, as well as anti-inflammatory activity probably due to the presence of constituents like flavonoids and triterpenoids.

Evaluation of Anti-inflammatory Activity of Trichosanthes dioica Roxb. Seeds

Inflammation a complex disease associated with various symptoms. These symptoms can be managed with non-steroidal and steroidal anti-inflammatory drugs, which lead to severe side effects on long-term use. Natural products are used as an alternative source of the discovery of new entities to be used as compounds anti-inflammatory compounds to overcome this problem. Trichosanthes diocia (T. diocia) belongs to Cucurbitaceae family. T. dioica, a dioecious perennial herbaceous vegetable, is a rich source of vitamin C and minerals. In addition to fruits, leaves and tender shoots have been used in the indigenous system of medicine. The objective of the present study was to evaluate the anti-inflammatory activity of methanolic extract of T. dioica seeds for scientific validation of the folklore claim of the plant The extract was evaluated at three different concentrations of 100, 200, and 400 mg/kg, p.o. Significant dose-dependent anti-inflammatory activity was observed, comparable with that of the standard drug indomethacin at a dose of 10 mg/kg.

Anti-inflammatory effect of Acalypha australis L. via suppression of NF-κB signaling in LPS-stimulated RAW 264.7 macrophages and LPS-induced septic mice

We evaluated the anti-inflammatory activity of methanol extracts of Chinese medicinal plants from Beijing and determined which extract was the most effective. We found the methanol extract of Acalypha australis L. (AAL) to be the most effective. AAL has been used for clearing heat, toxic material, and hemostasia in Chinese medicine. Although these uses are closely related to inflammation, the anti-inflammatory effect of AAL has not yet been described and its underlying mechanism remains unclear. Therefore, we aimed to identify anti-inflammatory effect of AAL and its underlying mechanism in vitro and in vivo. In RAW 264.7 macrophages, cytotoxicity was evaluated by MTT assay and nitric oxide (NO) was measured with Griess reagent. To confirm the production of pro-inflammatory cytokines and its mRNA expression, enzyme immunoassay (EIA) and quantitative real-time PCR (qRT-PCR) were performed. Further, protein expression was analyzed by western blotting. Septic shock was induced by intraperitoneal injection of LPS (25 mg/kg) in mice. One hour before LPS injection, AAL (25 and 50 mg/kg) was administered orally. In LPS-stimulated macrophages, AAL inhibited NO production at concentrations without cytotoxicity. Additionally, AAL reduced not only inducible nitric oxide synthase (iNOS) expression but the production of tumor necrosis factor-α (TNF-α) and interleukin-6 (IL-6) by attenuating nuclear factor-kappa B (NF-κB)-related proteins (NF-κB p65, phosphorylation of inhibitor κB-α; p-IκB-α, phosphorylation of inhibitor κB kinase-α/β; p-Ikk-α/β). Moreover, AAL enhanced the survival rate of mice through the inhibition of iNOS expression and IL-6 and interleukin-1β (IL-1β) production in LPS-induced septic mice. Furthermore, AAL also reduced the expression of NF-κB-related proteins. These finding suggest that AAL is related to the modulation of inflammatory reactions by blocking NF-κB activation in LPS-stimulated RAW 264.7 macrophages and LPS-induced septic mice.

In-vivo Anti-inflammatory testing of extracts and its fractions obtained from Saptaparn leaves (Alstonia scholaris Linn. R. Br)

Since antiquity, Alstonia scholaris commonly known as devil's tree or blackboard tree has been used for the treatment of many human ailments. The plant is used in Ayurvedic, Unani and Sidhha/Tamil types of alternative medicinal systems. Literature suggests that Alstonia scholaris is useful in treating malaria, abdominal disorders, dyspepsia, leprosy, skin diseases, tumors, chronic and foul ulcers, asthma, bronchitis etc. In order to validate these ethno-botanical practices the anti-inflammatory activity of methanolic extracts and various bioactive guided fractions of leaf of Saptparn (Alstonia scholaris, Apocyanaceae) tested. The anti-inflammatory activity of the extracts and its various fractions were evaluated using the carrageenan-induced rat paw edema method for the determination of acute phase of inflammation. Indomethacin used as reference drug. The result of pharmacological studies (anti-inflammatory) indicated the methanolic extract (200 mg/kg) significantly inhibited carrageenan induced rat paw edema in comparison to the inhibition of edema by standard drug Indomethacin (10mg/kg). Maximum inhibition of rat paw edema was observed with methanolic extract of plant (400 mg/kg) at the end of 4th hour when compared to control group. The chloroform fraction (50 mg/kg and 100 mg/kg) possess statistically significant anti-inflammatory activity. Maximum inhibition of rat paw edema was observed with chloroform fraction at 100 mg/kg at the end of 5th hour when compared to control group.

Evaluation of anti-inflammatory activity of Justicia secunda Vahl leaf extract using in vitro and in vivo inflammation models

BackgroundJusticia secunda Vahl. is a medicinal plant used in ethnomedical practice as therapy to manage inflammation. Therefore, this study was designed to evaluate the anti-inflammatory activity of methanol extract of J. secunda leaves (MEJSL) using in vitro and in vivo inflammation models.MethodsSeventy-percent MEJSL was prepared following standard procedure. In vitro anti-inflammatory assays were performed using heat-induced bovine serum albumin (BSA) denaturation and erythrocyte membrane stabilization assays. Carrageenan and formaldehyde induced inflammation in rat models were used to evaluate the anti-inflammatory activity of MEJSL in vivo. Diclofenac sodium was used as a reference drug. In addition, liver and kidney function assays and hematological analysis were carried out.ResultsData revealed that varying concentrations of MEJSL significantly (P < 0.05) inhibited heat-induced BSA denaturation and stabilized erythrocyte membrane against hypotonicity-induced hemolysis when compared with diclofenac sodium in a concentration-dependent manner. In vivo study showed that 10 mg/kg body weight (b.w.) diclofenac sodium, 100 and 300 mg/kg b.w. MEJSL suppressed carrageenan-induced paw edema at the sixth hour by 71.14%, 83.08%, and 89.05%, respectively. Furthermore, 10 mg/kg b.w. diclofenac sodium, 100 and 300 mg/kg b.w. MEJSL inhibited formaldehyde-induced paw edema by 72.53%, 74.73%, and 76.48%, respectively. Animals treated with varying doses of MEJSL had reduced plasma aspartate aminotransferase and alanine aminotransferase activities; urea and creatinine concentrations; and modulated hematological parameters when compared with the untreated control group.ConclusionsFindings from this study showed that MEJSL exhibited substantial anti-inflammatory actions in the in vitro and in vivo models. It also indicated that MEJSL anti-inflammatory mechanisms of action could be through interference with phase 2 inflammatory stressors, upregulation of cytoprotective genes, stabilization of inflammatory cell membranes and immunomodulatory activity.

Comparative study of the polyphenol content related-antioxidant and anti-inflammatory activities of methanolic extracts from different parts of Hertia cheirifolia

Comparative study of the polyphenol content related-antioxidant and anti-inflammatory activities of methanolic extracts from different parts of Hertia cheirifolia

Comparison of Anti-oxidant and Anti-inflammatory Activities of Methanolic Extracts Obtained from Different Parts of Cotoneaster wilsonii Nakai

Background: The Ministry of Environment, Korea recognizes Cotoneaster wilsonii Nakai as a second-class endangered plant. It is a native species that grows in Ulleung-do, Korea. To our knowledge, the bioactivity of this plant has not yet been reported. Therefore, in this study, we have reported the bioactivity of C. wilsonii Nakai.BRMethods and Results: The anti-oxidant activities of C. wilsonii methanolic extract were investigated in vitro. The anti-oxidant activity was evaluated using the 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical assay, and the total phenolic and flavonoid content were measured. The leaf methanolic extract had the highest DPPH radical scavenging activity (IC50; 15.74 ㎍/㎖), and it also had the highest total phenolic and flavonoid content (220.95 ㎎·GAE/g, and 36.46 ㎎·QE/g extract respectively). Through high performance liquid chromatography (HPLC) analysis, chlorogenic acid was found to be the predominant among all phenolic compounds, showing a concentration of 84.24 ㎎/g extract. More than 60% decrease in nitric oxide (NO) production was found in the leaf methanolic extract.BRConclusions: To the best of our knowldege, this is the first report of the bioactivities of C. wilsonii. The results demonstrate that the leaf methanolic extract of C. wilsonii shows potent anti-oxidant, and anti-inflammatory activities.

IN VITRO ANTI-INFLAMMATORY ACTIVITY OF METHANOLIC EXTRACT AND DIFFERENT FRACTIONS OF CENTELLA ASIATICA LEAVES BY PROTEIN DENATURATION

Inflammation might be a complex organic reaction to a hazardous stimulant such as pathogens, or injured tissues and mainly causes itching, swelling, skin redness, warm and slight pain. Herbal drugs are widespread in India for their effectiveness, easy availability at low cost and provide low toxicity as compared to modern drugs. Centella asiatica is one of the oldest Ayurvedic medicinal plants, used in treatment of various skin diseases. The aim of our present research was to evaluate the in vitro anti-inflammatory activity of methanolic extract and different fractions of C. asiatica leaves. In protein denaturation method, the percentage inhibition for methanolic extract was observed to be 40.22%. The petroleum ether and n-butanol fraction of methanolic extract of C. asiatica were observed to exhibits 54.12 and 44.42% inhibition, respectively. Diclofenac sodium was used as a standard drug. In comparison with other fractions petroleum ether and n-butanol fractions showed best activity. The preliminary phytochemical studies of n-butanol fractions and n-butanol fractions showed the presence of terpenoids, flavonoids etc., which are used in the treatment of inflammation. Thus, we can call the latter as intense anti-inflammatory agent.

ANTI-INFLAMMATORY ACTIVITY OF METHANOL EXTRACT OF NIEBUHRIA APETALA (ROTH) DUNN – IN VITRO MODELS

Objective: The objective of this study was to determine the anti-inflammatory activity of methanol extract of Niebuhria apetala and its possible mechanism of action.&#x0D; Methods: Methanol extract of Niebuhria apetala leaf (NAL) was assessed for its anti-inflammatory activity by in vitro methods. Using albumin denaturation assay, proteinase inhibitory activity, membrane stabilization, and antilipoxygenase activity at different concentrations, in vitro anti-inflammatory activity was estimated. The standard drug used for this purpose was aspirin.&#x0D; Results: Methanol extract NAL at a concentration range of 100–500 μg/ml significant (p&lt;0.01) protects the heat-induced protein denaturation. At the concentration of 500 mg/ml, NAL showed significant (p&lt;0.01) inhibition of protease inhibitory action. Heat-induced hemolysis of erythrocyte, hypotonicity-induced hemolysis, and lipooxygenase activity were significant (p&lt;0.01) inhibited at the concentration of 500 μg/ml.&#x0D; Conclusion: Finally, the present study indicates that methanol extract of Niebuhria apetala can be a potential source of anti-inflammatory agent.

Anti-inflammatory Activity of Methanolic Extract and an Alkaloid from Palicourea crocea (Sw.) Roem and Schult.

Palicourea crocea (Sw.) Roem. and Schult., "douradinha," are used by treat inflammation (edema). Croceaine A (PC-1) was isolated from P. crocea (MEPC) leaves and studied for its antioxidant and anti-inflammatory activity, as well as concentrations of constituents and acute toxicity. The phenols and polyphenolics compounds and HPLC/DAD were determined. The antioxidant activity were evaluated for DPPH, ABTS, and MDA. MEPC (300, 100, and 300mg/kg) and PC-1 (10 and 30mg/kg) were tested for anti-inflammatory effects in paw edema, pleurisy, cold sensitivity, and mechanical hyperalgesia. Acute toxicity is also described. MEPC contained high concentrations of phenolic and flavonoid compounds (≤ 800.35mg/g), as well as caffeic acid, ferulic acid, rutin, and quercetin, revealed by HPLC-DAD analysis. MEPC displayed antioxidant activity against ABTS radicals (IC50 = 68.5μg/mL) and MDA (74%). MEPC and alkaloid PC-1 demonstrated an anti-edematogenic effect in Cg-induced paw edema in 2 and 4h, and also significantly reduced mechanical hyperalgesia, cold response to acetone in mice, at 3 and 4h after injection, as well as leukocyte migrationin the pleurisy model. No toxicity was detected by MEPC. For the first time, P. crocea was evaluated for its antioxidant, systemic anti-inflammatory, and anti-hyperalgesic activities.

Evaluation of the analgesic and anti-inflammatory activities of methanolic extracts of the leaves of Averrhoa bilimbi leaves

Evaluation of the analgesic and anti-inflammatory activities of methanolic extracts of the leaves of Averrhoa bilimbi leaves

Anti-inflammatory Activities of Methanolic Extracts from Melastoma Malabathricum Linn. and Melastoma Decemfidum Roxb. Leaves on Macrophage RAW264.7 Cell Line

Anti-inflammatory Activities of Methanolic Extracts from Melastoma Malabathricum Linn. and Melastoma Decemfidum Roxb. Leaves on Macrophage RAW264.7 Cell Line

In Vitro Anti-Inflammatory Properties of Selected Green Leafy Vegetables.

The study investigated the anti-inflammatory activity of the hydro methanolic extract of six leafy vegetables, namely Cassia auriculata, Passiflora edulis, Sesbania grandiflora, Olax zeylanica, Gymnema lactiferum, and Centella asiatica. The anti-inflammatory activity of methanolic extracts of leafy vegetables was evaluated using four in vitro-based assays: hemolysis inhibition, proteinase inhibition, protein denaturation inhibition, and lipoxygenase inhibition. Results showed that the percent inhibition of hemolysis from these leaf extracts (25–100 µg/mL dry weight basis (DW)) was within the range from 5.4% to 14.9%, and the leaves of P. edulis and O. zeylanica showed a significantly higher (p < 0.05) inhibition levels. Percent inhibition of protein denaturation of these leafy types was within the range of 36.0–61.0%, and the leaf extract of C. auriculata has exhibited a significantly higher (p < 0.05) inhibition level. Proteinase inhibitory activity of these leaf extracts was within the range of 20.2–25.9%. The lipoxygenase inhibition was within the range of 3.7–36.0%, and the leaf extract of G. lactiferum showed an improved ability to inhibit lipoxygenase activity. In conclusion, results revealed that all the studied leaves possess anti-inflammatory properties at different levels, and this could be due to the differences in the composition and concentration of bioactive compounds.

ANTI-INFLAMMATORY ACTIVITY OF METHANOLIC EXTRACT OF HIBISCUS PLANTIFOLIUS

Objective: The objective of the present study was to carry out anti-inflammatory activity of methanolic extract of Hibiscus plantifolius (MEHP) belonging to the family Malvaceae.Methods: The shade dried stem part of H. plantifolius (1 kg) was powdered and extracted with methanol using soxhletion. The extract was concentrated using rotary evaporator under reduced pressure at 40°C, till free from the solvents and thereby providing crude methanol extract which was subsequently employed for further studies. Anti-inflammatory effect was studied by carrageenan-induced paw edema model in rats at dose level of 50, 150, and 300 mg/kg. Acute oral toxicity study was also studied.Results: The results indicate that MEHP, 300 mg/kg, exhibited significant inhibition (p&lt;0.001) of increase in paw edema at 4th h.Conclusion: The results of the experimental study confirmed that MEHP possesses significant anti-inflammatory activity.

Sphenodesme involucrata var. paniculata (C.B. Clarke) Munir.: Chemical characterization, anti-nociceptive and anti-inflammatory activities of methanol extract of leaves

Ethnopharmacological relevanceSphenodesme involucrata var. paniculata (C. B. Clarke) Munir is native as well as endemic to South India. Its leaves are used in folklore medicine to treat pain and rheumatism. ObjectiveThis study was aimed to investigate the chemical characterization, anti-nociceptive and mode of action underlying the anti-inflammatory effects of methanol extract of S. involucrata leaves (MESi). MethodsPhytoconstituents of MESi was analyzed using colorimetric and liquid chromatography–mass spectrometry (LC-MS) methods, and the oral acute toxicity was evaluated in mice up to 2000 mg/kg. The anti-nociceptive effect was evaluated in hot plate and writhing tests; whereas the anti-inflammatory effect was investigated using carrageenan, cotton pellet and lipopolysaccharide (LPS)-induced peritonitis models at doses of 100, 200 and 400 mg/kg. Additionally nitric oxide (NO) and inflammatory cytokines levels were also evaluated. ResultsMESi exhibited the high content of phenolics and flavonoids as well as compounds like austricine, benzylglucosinolate, gossypin, justicidin B and cirsimarin were detected in LC-MS. In the acute toxicity study, oral administration of MESi did not cause any toxic effect and mortality up to 2000 mg/kg body weight in mice. In the anti-nociceptive tests, MESi augmented the latency period at higher dose (400 mg/kg), on the other hand attenuated writhings at the dose of 400 mg/kg by 87.87% (p < 0.001). In the carrageenan induced paw oedema MESi significantly inhibited the oedema formation at dose 400 mg/kg by 32.1%; besides, anti-inflammatory effect was registered in the cotton pellets-induced inflammation model at doses 200 and 400 mg/kg by 27.09% (p < 0.001) and 35.47% (p < 0.001) respectively. On the other hand, MESi appreciably reduced leukocyte, neutrophils infiltration, nitric oxide, TNF-α and IL-1β levels and increased the IL-10 level in the (LPS)-induced peritonitis model. ConclusionThe results conclude that MESi has no acute toxic effect and it demonstrated potent anti-nociceptive and anti-inflammatory activities. Its anti-nociceptive activities are probably mediated through peripheral and central mechanisms. The anti-inflammatory effect of MESi involved the inhibition of neutrophils migration and the modulation of Th1 and Th2 cytokines, besides the attenuation of production of PGE2 and NO. LC-MS analysis revealed the predominant presence of the austricine, benzylglucosinolate, gossypin, justicidin B and cirsimarin compounds, which are possibly involved in the anti-nociceptive and anti-inflammatory effects of MESi. The current study provided supportive evidence for the folklore use of S. involucrata in the treatment of pain and inflammatory conditions.

Acute Toxicity, Anti-ulcer and Anti-inflammatory Effects of Methanol Extract of Gladiolus segetum in Rats

Objectives: To evaluate the in vivo anti-ulcer and anti-inflammatory activities of methanol extract of the aerial parts of Gladiolus segetum. Methods: First methanol extract of Gladiolus segetum was subjected to the acute oral toxicity test according to the OECD, guideline no 423.The anti-ulcer activity of Gladiolus segetum was investigated by ethanol induced gastric ulcer in Wistar rats. Methanol extract was administered by gavage one hour before ethanol to the different groups at a dose corresponding of 100,250 and 500 mg/kg body weight. The control group received normal saline in comparable volume (10ml/kg body weight) by the same route. The anti-inflammatory activity of the tested extract was evaluated in adult wistar rats by the egg albumin induced paw edema method. Results: A significant reduction (p <0.001) was observed in the results of the present study, revealed that methanol extract possessed gastroprotective activity and exerts a topical anti-inflammatory effect in vivo. Conclusion: These results suggest that methanol extract of Gladiolus segetum may represent an important clinical alternative in anti-inflammatory and antiulcer genic therapeutics.

Analgesic and anti-inflammatory activities of methanolic extract of Mallotus repandus stem in animal models

The aim of our current study is to investigate the analgesic and anti-inflammatory potentials of methanolic extract of Mallotus repandus stem (MSM) using different in vivo assay models. Analgesic and anti-inflammatory activities were evaluated using acetic acid induced writhing test, tail immersion method, hot-plate test, formalin induced hind paw licking, xylene induced ear edema, carrageenan-induced paw edema and cotton pellet induced granuloma in animal model at doses of 500, 1000 and 2000 mg/kg body weight. MSM showed significant (p < 0.05) analgesic activities in the acetic acid-induced writhing tests in mice. In the tail immersion and hot-plate test, MSM significantly prolonged the latency period (p < 0.05). Significant (p < 0.05) formalin induced paw licking inhibition was observed at different doses and the highest 74.47% inhibition was observed at 2000 mg/kg. Besides, MSM showed significant (p < 0.05) anti-inflammatory responses in carrageenan induced paw edema, xylene induced ear edema and cotton pellet induced granuloma methods. These findings suggest that the plant may be a potential source for the development of new analgesic and anti-inflammatory agent.

Methanolic Extract of Leathery Murdah, Terminalia coriacea (Roxb.) Wight and Arn. Leaves Exhibits Anti-Inflammatory Activity in Acute and Chronic Models

Objective: The aim of the present study was to evaluate anti-inflammatory activity of methanolic extract of Terminalia coriacea. Materials and Methods: A methanolic extract of T. coriacea leaves was studied in albino Wistar rats with carrageenan-induced paw edema, an acute model, and cotton pellet-induced granuloma, a chronic model, at 3 oral test doses (125, 250, and 500 mg/kg). Aspirin 100 mg/kg was used as a positive control. Paw volume and wet and dry weights of cotton pellets were determined. The data were analyzed by one-way ANOVA followed by Dunnett’s multiple comparison test. Results: The test extract at doses of 125 and 250 mg/kg decreased paw volume and wet and dry weights of cotton pellets. The highest test dose (500 mg/kg) displayed a response comparable to that of the standard drug (p < 0.01) on paw volume. The extract produced similar (p < 0.05) decrease in wet weight of the cotton pellet at 125 and 250 mg/kg, whereas the effect of 500 mg/kg of the extract was comparable to that of aspirin 100 mg/kg (p < 0.01). The extract of T. coriacea at 500 mg/kg induced the most significant (p < 0.01) effect on wet weight of granulomatous tissue. Conclusion: The methanolic extract of T. coriacea leaves successfully decreased paw edema as well as dry and wet weights of granulomatous tissue in both acute and chronic inflammatory models thus confirming the anti- edematogenic, antitransudative, and antiproliferative properties of T. coriacea.

Anti-inflammatory activity and phenolic composition of prickly pear (Opuntia ficus-indica) flowers

The in vivo anti-inflammatory activity of methanolic extract of Prickly pear Opuntia ficus-indica flowers was studied using carrageenan induced rat paw edema model. In order to characterize the extract, the qualitative and quantitative analysis of phenolic compounds of the methanol extract of Opuntia ficus-indica flowers (OFIFE) were performed using LC–MS/MS technique. The main components of OFIFE were phenolic acids and flavonoids.It was observed that the OFIFE inhibited significantly the inflammation as confirmed by the hematological and the histological analysis.The anti-inflammatory effect of OFIFE was associated with the reduction of malonaldialdehyde level (MDA as an index of lipid peroxidation) and an increase in activities of catalase (CAT), superoxide dismutase (SOD), and reduced glutathione (GSH).Overall, the results showed that OFIFE might serve as a natural source for the treatment of inflammation.

Anti-inflammatory Activity of Methanolic Extract from Pistacia atlantica Desf. Leaves

Anti-inflammatory Activity of Methanolic Extract from Pistacia atlantica Desf. Leaves