Posted by admin on Sep 15, 2010 in |
Guava (Psidium guajava Linn.) Family Myrtaceae is important plant used traditionally for medicinal purposes. Guava is rich in antioxidants compounds and contains a high level of ascorbic acid. The pharmacological actions and the medicinal uses of aqueous extracts of guava leaves in folk medicine include the treatment of various type of gastrointestinal disturbances such as vomiting, diarrhea, inhibition of the peristaltic reflex, gastroenteritis, spasmolytic activity, dysentery, abdominal distention, flatulence and gastric pain. The important active constituents are essential oils, flavonoids, carotenoids, polyphenolic compounds, pentacyclic triterpenoids, esters, and aldehydes etc. This paper explains the Evidence-based information regarding the phytochemistry and pharmacological activity of this...
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Posted by admin on Sep 1, 2010 in |
Objective: To evaluate the antibacterial activity of ethanolic extract of roots of Vetiveria zizanioides. Method: Ethanolic extract of roots of Vetiveria Zizanioides was prepared. Standard cultures of Escherichia coli NCIM 2118; Bacillus subtilis NCIM 2063, P. aeurogenosa NCIM 2036 and Staphylococcus aureus NCIM 2079 were used for the study. The antibacterial tests used were the agar well plate method. Ciprofloxacin was used as the positive control. Results: EEVZ does not show any activity against B.subtilis. However, the activity was less than the standard Ciprofloxacin. The extract shows increasing inhibitory activity with increase in concentration (150-750µg). Conclusions: From our investigation, for screening ethanolic extract of Vetiveria zizanioides the results obtained confirmed therapeutic potency of some plants used in traditional medicine. The plants could be potential source of new antimicrobial...
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Posted by admin on Sep 1, 2010 in |
Thymol is the main volatile compound extracted from dried fruits of Tachyspermum ammi Mill. The compound serves as a biological marker because of its interesting biological activities and is used in traditional medicine, as a bactericide, fungicide, Gastro-intestinal disorders, Bronchitis and asthma, and others. A GC method for the determination of thymol was developed. Chromatographic analysis was carried out on – stainless steel 30m×0.25m×0.25mm packed with polysiloxane column with flow rate 1.0 ml per minute of the carrier gas. Quantification was performed using a FID. The method was validated for specificity, precision, Linearity, accuracy and robustness. The method was found to be precise for different concentrations of thymol. Accuracy was checked by conducting recovery at different level of thymol and the average percentage and recovery was found to be in the range 90%-110%. The Linearity was established over a range of seven different concentrations of the analyte (70%, 80%, 90%, 100%, 110%, 120% and 130% of test concentration) with correlation coefficients of 0.9997 for thymol....
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Posted by admin on Sep 1, 2010 in |
Diabetes mellitus is a disorder of metabolism resulting from insulin abnormality. Tissue levels of chloroquine in diabetes were investigated. Few diseases have such plural effects in the body as diabetes mellitus. Chloroquine distribution in the tissue and blood was investigated in diabetic rats to a certain how diabetes mellitus affects the levels of chloroquine in tissues and blood. This may prove valuable in a possible diabetes- malaria case treatment. Diabetes mellitus was induced in a group of experimental rats using streptozotocin, 60mg/Kg dose. The mean volume of urine passed over 96 hour period after 10 days of streptozotocin administration was 31.74±0.06 ml and that of control rats was 23.28±0.19 ml. The values showed significant statistical difference (p<0.05). Confirmation of diabetes was performed 14 days after streptozotocin administration by determining the blood glucose levels, using glucose oxidase reagent. The diabetic and the control rats were divided into two groups each, which were given 10mg/Kg and 20mg/Kg single dose of chloroquine respectively. 96 hours after the administration of a single dose...
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Posted by admin on Sep 1, 2010 in |
A series of novel N-substituted benzimidazole derivatives were synthesized and screened anti-viral activity against a HIV -1 and -2 in MT-4 cells. New compounds were synthesized through modifying the N-1 hydrogen of benzimidazole moiety with the substitution of sulphanilamide, sulphadimidine, sulphamethoxazole, 2-aminopyridine, pthalamide, benzamide, nicotinamide, anthranilic acid and 2- marcapto- benzimidazole by mannich reaction. The structure of the synthetic compounds was characterized by means of IR and PMR data. The anti-HIV activities of the new compounds were also screened for in vitro anti-viral activity against replication of HIV-1 (IIIB) and HIV-2 (ROD) in MT-4 cells using AZT- as standard and cytostatic activity were also studied by MT- 4/MTT assay. Benzimidazole derivative BSD inhibited the replication of HIV-1 and 2 (EC50= 35.40µg/ml and CC50>125µg/ml) in MT-4...
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