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Electrophoretically unique amylases in rat livers: phylogenic and ontogenic study on the mammalian liver.
Electrophoresis
September 2002
Department of Medical Technology, Junior College, Saitama Medical School, Japan.
Liver amylase activity in rodents was assayed with Blue Starch as substrate, and found to be higher than in humans or pigs. Based on the result of concanavalin A affinity chromatography, we found that the sugar moieties of amylase molecules increased in parallel with amylase activity in the tested mammals. However, the amounts of amylase proteins determined by Western bloting with anti-human salivary-type antibody as the probe, were similar to the levels in mammalian livers.
View Article and Find Full Text PDFAn electrophoretic method for selection of conditions for production of electrophoretically uniform protein colloidal gold complexes.
J Histochem Cytochem
January 1991
Department of Dermatology, University of Texas Medical School, Houston 77030.
An electrophoretic method was developed to determine the conditions required for production of electrophoretically uniform protein-colloidal gold complexes from monodisperse colloidal gold (Au) and electrophoretically uniform protein. The method is based on the electrophoretic migration of protein-Au complexes in agarose. The results demonstrate that two variables, the pH of adsorption and the quantity of protein added, can be manipulated to vary the electrophoretic mobility of the resulting protein-Au complexes.
View Article and Find Full Text PDFChemical modification of cellulosic membranes and their blood compatibility.
Artif Organs
April 1990
Institute of Polymer Chemistry, Academy of Sciences, Teltow-Seehof, G.D.R.
Blood compatibility is determined by interactions at the blood-material interface that depend on the material surface chemical structure. Through selective modifications of the chemically reactive hydroxyl groups of cellulose, the aim was to improve the biocompatibility of cellulose membranes. The number of potentially reactive hydroxyl groups on the cellulose membrane surface were reduced through isocyanate cross-links or through the introduction of hydrophilic, hydrophobic, or ionic functionalities by graft copolymerization.
View Article and Find Full Text PDFCalcium ions and 1-palmitoyl carnitine reduce erythrocyte electrophoretic mobility: test of a surface charge hypothesis.
J Mol Cell Cardiol
June 1988
Department of Pharmacology, University of Connecticut Health Center, Farmington 06032.
In ventricular muscle, 1-palmitoyl carnitine (1-PC) acted like calcium ions to shift the voltage-dependent inactivation of excitatory ion currents to less negative potentials. We proposed that 1-PC affected ion current kinetics by reducing surface negative charge. This hypothesis was tested in cell electrophoresis experiments where the electrophoretic mobility (EPM) of erythrocytes was measured in the absence and presence of test ligands.
View Article and Find Full Text PDF[Heterogenous immune reactivity in brain tumors: results of cellular immunity in relation to brain tissue antigens].
Fortschr Neurol Psychiatr
October 1985
In brain tumors and other neurological diseases cell-mediated immune reactions to fetal brain tissue antigens (FBA), normal tissue antigen of adult brain (NTA) and tumor-associated antigens of different brain tumors (TAA) have been analysed. The detection of sensitized lymphocytes using the MEM-(macrophage-electrophoretic-mobility-) test revealed general tumor-related results applying the FBA, in some extent a cross reactivity and partly no kind of reaction. A phase-specific reactivity to normal brain antigens could not be found, only cases of multiple sclerosis produced restrictive results employing the NTA.
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