Normal human plasma lipoprotein system consists of four distinct lipoprotein families referred to as LP-A,* LP-B, LP-C, and LP-D [l-4]. In the density above 1.019 g/ml, the lipoprotein families occur mainly as separate physicochemical entities [3, 51. However, in the density below 1.019 gJrn1 the lipoprotein families B and C and, if present, lipoprotein families A and D form an association comp...

An algebra A is uniform if for each θ ∈ ConA, every two classes of θ have the same cardinality. It was shown by W. Taylor that coherent varieties need not be uniform (and vice versa). We show that every coherent variety having transferable congruences is uniform.

Adsorption of bioparticles to affinity surfaces involves polyvalent interactions, complicating greatly the recovery of the adsorbed material. A unique system for the efficient binding and release of different cells and particles is described. Affinity-bound bioparticles and synthetic particles are detached from the macroporous hydrogel matrix, a so-called cryogel, when the cryogel undergoes ela...

Let A = (A;F ) be an algebra and ConA its congruence lattice. Recall that A is congruence uniform (see e.g. [1], [5]) if for each Θ ∈ ConA and every a, b ∈ A, card[a]Θ = card[b]Θ. Examples of congruence uniform algebras are e.g. groups, rings or Boolean algebras. A variety V is congruence uniform if each A ∈ V has this property. It was proved by W. Taylor [5] that every congruence uniform varie...

Immunization with MFS-180 vaccine prepared in the presence of glutaraldehyde (0.05%), lipopolysaccharide (LPS) (100 micrograms/ml), and concanavalin A (Con A) (200 micrograms/ml) could protect Swiss mice against a subsequent challenge by 1 X 10(6) MFS-180 cells. The sequence of attachment of LPS and Con A to glutaraldehyde-treated cells as found to determine the efficacy of the vaccine. LPS cou...

Results of experiments have indicated that reduction in biological activities at high concentrations of Japanese encephalitis virus is caused by aggregates of the virus by concanavalin A. The possibility exists that the concanavalin A binding site is different from hemagglutination and antireceptor sites of Japanese encephalitis virus.

We fabricated a two-dimensional (2-D) photonic crystal lectin sensing material that utilizes light diffraction from a 2-D colloidal array attached to the surface of a hydrogel that contains mannose carbohydrate groups. Lectin-carbohydrate interactions create hydrogel cross-links that shrink the hydrogel volume and decrease the 2-D particle spacing. This mannose containing 2-D photonic crystal s...

Weekly transfusions of whole blood from a nondiabetic subline of BB/W rats reduced the incidence of diabetes in susceptible BB/W rats from 39 to 0 percent and the incidence of pancreatic insulitis from 64 to 6 percent. Responsiveness of lymphocytes to concanavalin A was found to be low in rats with diabetes or insulitis. Transfusion restored concanavalin A responsiveness to levels observed in c...

Glucocorticoid-resistant P1798 cell lines have been found to contain levels of glucocorticoid receptor comparable to receptor levels in glucocorticoid-sensitive P1798 cells. Pre viously, most of the P1798 resistant cells examined were found to contain low levels of glucocorticoid receptor, and this was thought to account for the resistance of these cells to glucocorticoid treatment. Resistant c...