The aqueous and organic extracts of Acacia visco Lor. Ap Griseb (Fabaceae) were tested for antiinflammatory activity in experimental models in rat. Besides, the free-radical scavenging capacity of extracts from A. visco was determined. The extracts revealed antiinflammatory effect against carrageenan-induced oedema, phospholipase A 2 -induced oedema, cotton pellet-induced granuloma and they did not show acute toxic effect. Among the class of compounds characterized from A. visco leaves, the triterpenoid 20(29)-lupen-3b-ol (lupeol), 12-ursen-3b-ol (a-amyrin) and 12-oleanen-3b-ol (b-amyrin) may be mainly responsible for the pharmacological activities.
Abstract:In the present work we investigated, for the first time, the anti-inflammatory activity and the antioxidant properties of aqueous and ethanolic extracts, obtained from stem bark of Geoffroea decorticans (Gill. ex Hook. et Arn.) Burk. (Fabaceae). G. decorticans, commonly known as "chañar" or "chañarcillo", is a traditional argentinean plant used as emollient, balsamic, antitussive, expectorant and anti-inflammatory. The stem bark was collected from San Francisco del Monte de Oro, San Luis, Argentina. Anti-inflammatory activity was evaluated by carrageenan-induced paw edema in rats. Antioxidant activity was tested using 1,1-Diphenyl-2-picrylhydrazyl radical-scavenging activity (DPPH), 2,2´-Azino-bis(3-ethylbenzthiazoline-6-sulphonic acid) radical scavenging activity (ABTS) and ferric ion-reducing power (RP-Fe) assays. Aqueous extract 10% p/v showed anti-inflammatory activity (3h, 48% inhibition, 5h 37% inhibition and 7h 17% inhibition) and antioxidant activity (DPPH, IC 50 (mg/mL) = 0.098 ± 0.032; ABTS, IC 50 (mg/mL) = 0.022 ± 0.343, RP-Fe IC 50 (mg/mL) = 1.124 ± 0.146). In the other hand, the ethanolic extract 5% p/v, presented anti-inflammatory activity (3h, 34% inhibition, 5h 38% inhibition and 7h 35% inhibition) and antioxidant activity (DPPH, IC50 (mg/mL) = 0.133 ± 0.027; ABTS, IC50 (mg/mL) = 0.086 ± 0.262, RP-Fe IC50 (mg/mL) = 7.089 ± 0.104). These results suggest that, also fruits, the aqueous and ethanolic extracts from the stem bark of G. decorticans present significant anti-inflammatory activity and antioxidant properties.
Abstract:In the present work we investigated, for the first time, the anti-inflammatory activity and the antioxidant properties of aqueous and ethanolic extracts, obtained from stem bark of Geoffroea decorticans (Gill. ex Hook. et Arn.) Burk. (Fabaceae). G. decorticans, commonly known as "chañar" or "chañarcillo", is a traditional argentinean plant used as emollient, balsamic, antitussive, expectorant and anti-inflammatory. The stem bark was collected from San Francisco del Monte de Oro, San Luis, Argentina. Anti-inflammatory activity was evaluated by carrageenan-induced paw edema in rats. Antioxidant activity was tested using 1,1-Diphenyl-2-picrylhydrazyl radical-scavenging activity (DPPH), 2,2´-Azino-bis(3-ethylbenzthiazoline-6-sulphonic acid) radical scavenging activity (ABTS) and ferric ion-reducing power (RP-Fe) assays. Aqueous extract 10% p/v showed anti-inflammatory activity (3h, 48% inhibition, 5h 37% inhibition and 7h 17% inhibition) and antioxidant activity (DPPH, IC 50 (mg/mL) = 0.098 ± 0.032; ABTS, IC 50 (mg/mL) = 0.022 ± 0.343, RP-Fe IC 50 (mg/mL) = 1.124 ± 0.146). In the other hand, the ethanolic extract 5% p/v, presented anti-inflammatory activity (3h, 34% inhibition, 5h 38% inhibition and 7h 35% inhibition) and antioxidant activity (DPPH, IC50 (mg/mL) = 0.133 ± 0.027; ABTS, IC50 (mg/mL) = 0.086 ± 0.262, RP-Fe IC50 (mg/mL) = 7.089 ± 0.104). These results suggest that, also fruits, the aqueous and ethanolic extracts from the stem bark of G. decorticans present significant anti-inflammatory activity and antioxidant properties.
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