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Buffer-Optimized High Gradient Magnetic Separation
Shahid Waseem,Rachanee Udomsangpetch,Sebastian C. Bhakdi 한국자기학회 2016 Journal of Magnetics Vol.21 No.1
High gradient magnetic separation (HGMS) is the most commonly used magnetic cell separation technique in biomedical science. However, parameters determining target cell capture efficiencies in HGMS are still not well understood. This limitation leads to loss of information and resources. The present study develops a beadcapture theory to predict capture efficiencies in HGMS. The theory is tested with CD3- and CD14-positive cells in combination with paramagnetic beads of different sizes and a generic immunomagnetic separation system. Data depict a linear relationship between normalized capture efficiency and the bead concentration. In addition, it is shown that key biological functions of target cells are not affected for all bead sizes and concentrations used. In summary, linear bead-capture theory predicts capture efficiency (Et) in a highly significant manner.
Evaluation of antifilarial activity of Berberis aristata roots
Waseem Rizvi,NakhatHaider,Anil Kumar,Razi Ahmad,Mohammad Shahid,Anwar Shazad 경희대학교 융합한의과학연구소 2008 Oriental Pharmacy and Experimental Medicine Vol.8 No.2
The effect of aqueous and alcoholic extract of roots of Berberis aristata was studied on the spontaneous movements of the whole worm (w.w) preparation and nerve muscle (n.m) complex of cattle filarial parasite Setaria cervi and on the survival of microfilariae. Only aqueous extract could inhibit the spontaneous movements of S. cervi, characterized by initial stimulation followed by reversible paralysis. The concentration required to produce similar effect on n.m complex was less as compared to the w.w. The lethal concentration 50 and lethal concentration 90 for aqueous extract were 48 ng/ml and 65 ng/ml. The effect of aqueous and alcoholic extract of roots of Berberis aristata was studied on the spontaneous movements of the whole worm (w.w) preparation and nerve muscle (n.m) complex of cattle filarial parasite Setaria cervi and on the survival of microfilariae. Only aqueous extract could inhibit the spontaneous movements of S. cervi, characterized by initial stimulation followed by reversible paralysis. The concentration required to produce similar effect on n.m complex was less as compared to the w.w. The lethal concentration 50 and lethal concentration 90 for aqueous extract were 48 ng/ml and 65 ng/ml.
Evaluation of antifilarial activity of Berberis aristata roots
Rizvi, Waseem,Kumar, Anil,Ahmad, Razi,Shahid, Mohammad,Shazad, Anwar,Haider, Nakhat Kyung Hee Oriental Medicine Research Center 2008 Oriental pharmacy and experimental medicine Vol.8 No.2
The effect of aqueous and alcoholic extract of roots of Berberis aristata was studied on the spontaneous movements of the whole worm (w.w) preparation and nerve muscle (n.m) complex of cattle filarial parasite Setaria cervi and on the survival of microfilariae. Only aqueous extract could inhibit the spontaneous movements of S. cervi, characterized by initial stimulation followed by reversible paralysis. The concentration required to produce similar effect on n.m complex was less as compared to the w.w. The lethal concentration 50 and lethal concentration 90 for aqueous extract were 48 ng/ml and 65 ng/ml.
Some Biochemical Abnormalities Caused by Cypermethrin in adults of Tribolium castaneum (Herbst.)
ASHFAQ, Muhammad,shahid Mehmood KHALID,Waseem AKRAM,Riaz HUSSAIN,이종진 한국곤충학회 2004 Entomological Research Vol.34 No.1
Biochemical effects of sub lethal doses LC10 and LC20 of cypermethrin were studiedon some enzymes and macromolecule activities of adult beetles of Tribolium castaneum (Herbst.).Cypermethrin caused disturbances in levels of all biochemical components under study. The doseof 0.78 ppm caused abnormalities in α-amylase and FAA by increasing their activities i.e.,45.45% and 21.97% significantly. The higher sub lethal dose of 2.62 ppm disturbed all theparameters (AcP, α-amylase, soluble protein and FAA) except AkP, which was decreased by93.06%. Moreover, sub lethal doses either increased or decreased the levels of all parameters nonsignificantlyexcept AkP and FAA which were effected significantly by 87.92% and 14.29% atlower and higher doses, respectively. In the present studies, cypermethrin significantly enhancedthe activity of AkP in both susceptible and resistant strains of T. castaneum adult beetles whileFAA contents were increased significantly in resistant strain only. The activity of α-amylase wassignificantly lowered in susceptible strain only.