S. A. M. Khairul Bashar

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Polygonum flaccidum Meissn. is an annual herb, native to Bangladesh, and well known for its analgesic, anti-inflammatory, diuretic, purgative and insecticidal properties, and also for its use against snake-bites. The analgesic and the diuretic properties of alpha-santalone (1), isolated from the aerial parts of Polygonum flaccidum, were assessed by the(More)
We report on recent progress in the control of optical modes toward the improvement of commercial high-performance diode laser modules. Control of the transverse mode has allowed scaling of the optical mode volume, increasing the peak output power of diode laser emitters by a factor of two. Commercially-available single emitter diodes operating at 885 nm(More)
1. Polyribosomes were isolated from Escherichia coli grown in media in which tryptophanase is induced and in which it is repressed. The polyribosomes from the induced bacteria had a small amount of tryptophanase activity associated with them. 2. A portion of the enzyme activity remained bound to polyribosomes during centrifuging in sucrose gradients. 3.(More)
Plaque forming response of antibody producing spleen cells against Salmonella typhimurium was studied in vitamin-A deficient and normal rats after 3, 6, 9 and 12 days of injecting the antigen. Vitamin-A deficient rats were found to have significantly decreased (P less than 0.001) number of antibody plaque forming cells in the spleen as compared to normal(More)
The n-hexane, ethyl acetate (EtOAc), and methanol extracts of the aerial parts of Polygonum stagninum Buch.-Ham. ex Meissn. (Polygonaceae), a Bangladeshi medicinal plant, were assessed for analgesic and anti-inflammatory properties in experimental mice and/or rat models. In the acetic-acid-induced writhing test in mice, all extracts displayed a dose(More)
Post weaning rats were fed protein deficient dies for about 6 weeks until their body weight/brain weight ratio started to decrease. Effect of such malnutrition on the plaque forming response of antibody producing spleen cells against three bacterial antigens, Vibrio cholerae, Salmonella paratyphii and Staphylococcus aureus were studied. Mitogen stimulation(More)