Résumé
The present study describes the synthesis, characterization of nano-particles from Periploca hyaspidis and their in vitro biological activity. The synthesis of AgNPs was confirmed by UV-Vis spectrophotometer and structure by atomic force microscope. The crystallite size and different functional groups was determined by X-ray diffraction and Fourier transformed infrared spectroscopy. Anti-microbial and anti-oxidant activity was carried out by disc diffusion and DPPH radical scavenging protocol respectively. Silver nano-particles [AgNPs] were synthesized by mixing 1mM AgNO3 solutions with plant boiled extract in 1:9. The color change from yellow to dark brown indicated the synthesis of the nano-particles. The AgNPs were more stable at 25 degree C to 45 degree C, 1mM concentration of the salt and neutral to slightly basic pH. The results revealed that aromatic amines were responsible for the synthesis of AgNPs. The crystallite size was 7.50 nm, cubic and in nanorgime. AgNPs showed good anti-oxidant activity and was effective against K. pnemoniae, E. coli, X. compestris, C. albicans and P. chrysogenum
Résumé
The present study investigates the phyto-chemical analysis, phytotoxic activity and insecticidal activity of the stem and root tissues of medicinally important Periploca hydaspidis. All the extracted samples exhibited the phytotoxic activity. The data confirmed that water was the best solvent to extract the phytotoxic compounds from stem and root tissues. Roots extracted with different solvents exhibited better phytotoxic potential than samples obtained from the stem tissues. Samples extracted in methanol and water from both stems and roots tissues were active against the subject insects while hexane, ethyl acetate and butanol extracted samples in both parts exhibited no insecticidal activity. Water extracted samples of the stem and root exhibited better insecticidal activity compared with methanol extracted samples. Tribolium castaneum and Rhizopertha dominica were more sensitive in both the cases than Callosobruchus maculates. The plant contained alkaloids, flavonoids, carbohydrate, proteins and saponins
Résumé
The aim of the present study was to investigate bioactive compounds in different solvent extracted samples from the stem tissues of P. hydaspidis using Gas Chromatography and Mass Spectroscopy techniques. GC-mass spectrum was compared with the data base of National Institute of Standards and Technology [NIST] containing more than 62000 patterns of the mass spectrum. During matching with NIST library the match factor greater than 700 was considered only for better and pure results. The results revealed that different solvent extracted samples analyzed through GC-MS contained appreciable quantities of different bioactive molecules including antibiotics, fatty acids and protein which have important pharmacological significance
Résumé
To assess the glycemic status, income, self-monitoring, compliance, education and pattern of pharmacotherapy in 100 type 2 diabetes mellitus patients. Material and This descriptive observational study was carried out at Medical A Unit, Khyber Teaching Hospital Peshawar. A total of 100 type 2 diabetic patients were included through non-probability sampling. Glycosylated hemoglobin of each patient was determined and questions were asked about income, self-monitoring of glycemic status, education and compliance of the patients. Majority of the patients [78%] had poorly controlled diabetic mellitus. Most of the patients [42%] were poor and their monthly income was less than 5000 rupees. Only 57% of the patients monitored their blood sugar once a month. No patient was using glycosylated hemoglobin for assessment of his or her glycemic status. Majority of the patients [82%] were illiterate. Oral hypoglycemic agents were used by 81% of the patients. Most of the patients had poorly controlled diabetes mellitus. Majority of the patients were poor and illiterate and there was poor self-monitoring. Most of the patients were using oral hypoglycemic drugs