“EVALUATION OF GALPHIMIA GLAUCA STEM METHANOL EXTRACT FRACTIONS FOR ANALGESIC AND ANTI-INFLAMMATORY ACTIVITIES”

Objective: This current investigation assesses in vivo central and peripheral analgesic effects and anti-inflammatory properties of fractions obtained from Galphimia glauca (GG) stem methanol extract. Methods: The laboratory models such as Swiss albino mice and Wistar albino rats were employed in the studies. The GG stem methanol extract was subjected to fractionation with solvents such as hexane, chloroform, ethyl acetate, and methanol. Orally, the dose range of 100, 200, and 400 mg/kg was given for 1 day for evaluating analgesic (hotplate test, tail clip test, writhing test, and formalin test) and weekdays for assessing anti-inflammatory activity (carrageenan and cotton pellet test methods), respectively. The experimental studies were further conducted for determining the involvement of central and peripheral receptor actions in the analgesic activity of the extract by prechallenging it with naloxone and acetic acid, respectively. The in vivo anti-inflammatory studies were conducted using carrageenan-induced rat paw edema model and cotton pellet granuloma test. Results: The LD50 of the extract was found to be >2000 mg/kg b.w. The methanol fraction of 400 mg/kg dose exhibited significant (p≤0.001) and dose-dependent analgesic and anti-inflammatory activity. It also exhibited central and peripheral analgesic actions when treated with naloxone and acetic acid, respectively. Conclusion: The results revealed that the stem methanol fraction has more potential in terms of analgesic and anti-inflammatory properties

Evaluation of Ocimum tenuiflorum and Syzygium aromaticum phenolic ethereal oils for In-vitro anti-inflammatory and anti-bacterial activities

Aim: The present study is aimed to evaluate in-vitro anti-inflammatory and anti-bacterial activity of phenolic ethereal oils like Tulsi (Ocimum tenuiflorum) and Clove (Syzygium aromaticum). Materials and methods: A total of 500 g of fresh leaves and dried flower buds of Tulsi and Clove were subjected to hydro-distillation method for 6 h using Clevenger’s apparatus. The isolated ethereal oils were used for testing the in-vitro anti-inflammatory activity by using albumin denaturation assay, proteinase inhibitory activity at a concentration of 20, 40, 60, 80 and 100 µl/ml and anti-bacterial activity against two gram positive microorganisms (Bacillus subtilis and Staphylococcus aureus) and two gram negative microorganisms (Salmonella typhi and Escherichia coli) at concentrations 50 µl/ml, 100 µl/ml and 200 µl/ml by adopting cup plate method. Results:  The isolated ethereal oils exhibited significant in-vitro anti-inflammatory effect and also inhibited the growth of both Gram positive and Gram negative microorganisms at 50 µl/ml, 100 µl/ml and 200 µl/ml concentrations. Conclusion: The findings of this study showed that the effectiveness of Phenolic ethereal oils isolated from Clove and Tulsi. Clove (Syzygium aromaticum) showed enhanced anti-inflammatory and anti-bacterial activity compared to Tulsi (Ocimum tenuiflorum). The present study provides evidence that Ocimum tenuiflorum and Syzygium aromaticum; Phenolic ethereal oils contain medicinally important bioactive components justifying its traditional use. Keywords: Phenolic ethereal oils, anti-inflammatory activity, anti-bacterial activity, Ociumm tenuiflorum, Syzygium aromaticum