Pharmacognostical and Preliminary Phytochemical Studies of Argyreia nervosa Burm.

Pharmacognostical parameters for the leaves of Argyreia nervosa Burm were studied with the aim of drawing the pharmacopoeial standards for this species. Macroscopical and microscopical characters, physio-chemical constants, quantitative microscopy parameters, extractive values with different solvents, fluorescence analysis of dry powder, its reaction after treatment with chemical reagents under visible light and UVlight at 254 nm and 366 nm. Preliminary phyto chemical screening on the leaves Argyreia nervosa Burm were studied. The determination of these characters will help future researchers in their Phytochemical as well as Pharmacological analyses of this species

PHYTOCHEMICAL AND PHARMACOLOGICAL EVALUATION OF CALLISTEMON CITRINUS FOR ANTIDEPRESSANT ACTIVITY IN ALBINO MICE

Objective: The present study was carried out to find out the antidepressant activity of different fractions of stems and leaves of Callistemon citrinus(CC). The efficacy of the fractions was compared with the standard reference drug imipramine.Methods: All the studies were conducted according to the ethical guidelines of CPCSEA. Healthy adult albino mice weighing 20-30 g were used asexperimental animals. The leaves of CC were extracted with alcohol and fractionated with chloroform and petroleum ether. All the fractions weresubjected for preliminary phytochemical screening, using various qualitative tests. In the present investigation, tail suspension test (TST) and forcedswim test (FST) are selected as animal models for evaluation of antidepressant activity in albino mice.Results: The preliminary phytochemical screening of CC has revealed the presence of carbohydrates, tannins, and flavonoids in a hydroalcoholicfraction. Chloroform fraction showed positive results toward flavonoids, alkaloids, tannins, glycosides, and steroids. Alcoholic and chloroform extract(100 and 200 mg/kg p.o.) of CC administered orally for 14 successive days had decreased the immobility periods significantly in a dose-dependentmanner in both TST and FST, showing significant antidepressant-like activity. The activities of the extracts were found to be comparable to imipraminein both FST and TST.Conclusions: Although a number of synthetic drugs are being used as a standard treatment for clinically depressed patient, they have adverseeffects that can compromise the therapeutic treatment. In the traditional systems of medicine, many plants and formulations have been used to treatdepression for thousands of years. The results of the study indicate that CC can be used as an antidepressant herb

Pharmacognostical and Preliminary Phytochemical Studies of \u3cem\u3eSapindus trifoliatus\u3c/em\u3e Vahl.

Pharmacognostical parameters for the leaves of Sapindus trifoliatus Vahl. were studied with the aim of drawing the pharmacopoeial standards for this species. Macroscopical and microscopical characters, physio-chemical constants, extractive values with different solvents, fluorescence analysis of dry powder, its reaction after treatment with chemical reagents under visible light and UV light at 254 nm and 366 nm. Preliminary phytochemical studies on the leaves of Sapindus trifoliatus were performed. The determination of these characters will aid future investigators in their pharmacological analyses of this species

Pharmacognostical and Preliminary Phytochemical Studies of \u3cem\u3eArgyreia nervosa\u3c/em\u3e (Burm. \u3cem\u3ef\u3c/em\u3e.) Bojer

Pharmacognostical parameters for the leaves of Argyreia nervosa (Burm. f.) Bojer were studied with the aim of drawing the pharmacopoeial standards for this species. Macroscopical and microscopical characters, physio-chemical constants, quantitative microscopy parameters, extractive values with different solvents, fluorescence analysis of dry powder, its reaction after treatment with chemical reagents under visible light and UV light at 254 nm and 366 nm. Preliminary phyto chemical screening on the leaves of Argyreia nervosa (Burm. f.) Bojer were studied. The determination of these characters will help future researchers in their Phytochemical as well as Pharmacological analyses of this species