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Articles by A. Khair
Total Records ( 4 ) for A. Khair
  M.A. Sayed , M.R. Gofur , A. Khair and M.A. Awal
  Arsenic is one of the most sensitive environmental issues in Bangladesh; even it is a major health concern in Asia. Spirulina and vitamin E have been considered as a potential therapeutic supplement due to its ability to minimize several element induced toxicities in various species including man. The study was performed to evaluate the role of spirulina (Spirulina platensis) and vitamin E in prevention of arsenic toxicity in different groups (T0-4, n = 60) of Long-Evans rats. T0 was control group, T1 was treated with sodium arsenite, T2 was treated with sodium arsenite plus spirulina, T3 was treated with sodium arsenite plus vitamin E and T4 was treated with sodium arsenite plus vitamin E plus spirulina daily for 63 days. Sodium arsenite was at 4 mg kg–1 b.wt., spirulina was at 1 g kg–1 feed and vitamin E was at 200 mg kg–1 feed. Samples were collected on day 21, 42 and 63. Arsenic was detected from tissue samples by Hydride Generation Atomic Absorption Spectrophotometer (HGAAS). Sodium arsenite feeding in rats caused chronic arsenic toxicity and the arsenic content in tissues (blood, lung, liver and kidney) of the exposed rats were significantly higher than control rats. Spirulina and vitamin E treatments significantly lowered the arsenic content in tissues. Arsenic caused hepatic and renal dysfunction but spirulina and vitamin E improved the hepatic and renal functions. Spirulina feeding was more effective than vitamin E and their combined treatment was more effective compare to their single treatment. The study demonstrates the role of spirulina and vitamin E in the reduction of toxicity of arsenic.
  M.S. Islam , M.A. Awal , M. Mostofa , F. Begum , A. Khair and M. Myenuddin
  The present study was undertaken for the effect of spirulina on biochemical parameters and reduction of tissue arsenic concentration in arsenic induced toxicities in ducks. One hundred and seventy 5 ducklings were divided into five equal groups separately. One group (T0) of ducklings was kept as control. One group (T1) of ducklings were given arsenic trioxide @ 100 mg/L drinking water and rest three groups of ducklings (T2, T3 and T4) were given arsenic trioxide @ 100 mg/L plus spirulina in three different doses i.e. 30, 60 and 120 mg/L in drinking water daily for 90 days starting from day 15. Five birds were sacrificed from each group in every 15 day intervals and biochemical parameters were determined. All the biochemical parameters (SGPT, SGOT, ALP, LDH and ACP) were significantly (p<0.01) elevated in arsenic treated groups. However, the elevation of these parameters was less in arsenic plus spirulina treated groups (T2, T3 and T4). The distribution of arsenic concentration was highest in liver and lowest in faeces. Maximum reduction of arsenic was recorded in all organs following highest doses of spirulina (120 mg/L). The present study reveals that spirulina may be helpful for reducing the tissue burden of arsenic in ducks.
  M.S. Islam , M.A. Awal , M. Mostofa , F. Begum , A. Khair and M. Myenuddin
  The present study, was undertaken for the effect of spirulina on toxic signs, body weight and hematological parameters in arsenic induced toxicities in ducks. One hundred and 75 ducklings were divided into 5 equal groups separately. One group (T0) of ducklings was kept as control. One group (T1) of ducklings were given arsenic trioxide @ 100 mg/L drinking water and rest three groups of ducklings (T2, T3 and T4) were given arsenic trioxide @ 100 mg/L plus spirulina in three different doses i.e. 30, 60 and 120 mg/L in drinking water daily for 90 days starting from day 15. Five birds were sacrificed from each group in every 15 day intervals and toxic signs, body weight and hematological parameters were recorded. Ducks of T1 group (only arsenic trioxide) showed depression, reduced feed intake, dullness and ruffled feathers which were in mild in nature in other groups i.e. arsenic plus spirulina. In arsenic treated groups (T1) the not gained body weight was maximum (14.93%), whereas in arsenic plus spirulina treated groups (T2, T3 and T4) the not gained body weight in ducks (4.08-11.26%) were better than only arsenic treated groups. Reduction of TEC, Hb and PCV values and rise of ESR values were significant (P<0.01) in T1 (arsenic treated) groups. However, in arsenic plus spirulina treated rest groups reduction of TEC, Hb and PCV were less than arsenic treated groups. The present study reveals that spirulina may be helpful for reducing the body burden of arsenic in ducks.
  M. A. Rahman , A.K.M.S. Islam , B.K. Bala and A. Khair
  Xenon treated eggplant fruit was studied to examine the formation of structured water through nuclear magnetic resonance (NMR) measurements. Spin-lattice relaxation time (T1) and spin-spin relaxation time (T2), were carried out immediately after sample preparation and one day of xenon application, and continued for 15 days at the same temperature. It was found that the mean relaxation times T1 (921 ms) and T2 (324 ms) were shorter in the xenon treated samples compared with the control ones, T1 (995 ms) and T2 (344 ms), respectively. Two phase behaviours were observed for both T1 and T2. T2 was also found to be independent to temperature. Browning of flesh was developed in the control sample after 6 days, while no sign of flesh browning was developed after 17 days in the treated sample. Formation of structured water by xenon gas results in suppression of the metabolic activity. Thus, xenon application was found to be effective in extending the storage life and maintaining the quality of fresh agricultural products.
 
 
 
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