Abstract
The leaves of Jasminum grandiflorum (JG) are in clinical use in Ayurveda for wound management. Since, oxidative stress and inflammation are the primary causes in delayed wound healing, so here its antioxidant and anti-inflammatory activities have been investigated using in vitro as well as in vivo models. The solvent-free methanolic extract of dried leaves of JG were tested for its trapping capacity toward pre-generated ABTS•+ radicals, instantly generated superoxide and hydroxyl radicals, along with metal chelation property, reducing power and total phenolic content. Further, it was tested on LPS-induced nitric oxide and cell viability, on primary culture of rat peritoneal macrophages. Its anti-inflammatory property was also tested on carrageenan-induced paw edema in rats. This extract significantly inhibited iron-induced lipid peroxidation and trapped ABTS•+, superoxide and OH radicals. It significantly inhibited nitric oxide (NO) release, without affecting the cell viability at 800 μg/ml concentration and reduced the formation of paw edema in rats. Thus, it could be suggested that the aforesaid anti-inflammatory properties of JG leaves are associated to its high phenolic content (2.25±0.105 mg/l of gallic acid equivalent), reducing power and its free radical-scavenging property.
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