Biochimica et biophysica acta, 984(3), 281-288 (1989-09-18)
Permeability coefficients (P) measured at various penetrant concentrations (C) by the perturbation method can be plotted to distinguish simple diffusion, simple pore kinetics and simple carrier kinetics as follows: for simple diffusion, 1/P = constant; for a simple pore, 1/P
Many microorganisms exhibit an adaptive response to mutagenic alkylation damage. In Escherichia coli the response is regulated by the inducible Ada protein. A sensitive immunoassay employing two anti-Ada monoclonal antibodies has been developed here to monitor low levels of induction
Drug metabolism and disposition: the biological fate of chemicals, 18(4), 447-452 (1990-07-01)
The single-dose toxicokinetics of monomethylamine has been characterized in the rat by HPLC assay of serial blood samples. Biphasic first-order elimination was observed following an iv bolus dose of 19 mumol/kg with a terminal half-life of 19.1 +/- 1.3 min
Colloids and surfaces. B, Biointerfaces, 51(1), 10-15 (2006-06-30)
The present study highlights the fact that the effect of additives (urea, monomethylurea, thiourea) on the supramolecular assemblies and proteins is strikingly similar. To investigate the effect, a viscometeric study on sphere-to-rod transition (s-->r) was undertaken in a system (3.5%
The thick ascending limb of Henle's loop (TALH) is thought to be involved in the regulation of the renal urea gradient. We have characterized the uptake of urea (oil density centrifugation and 2-compartment-culture) and volume regulation (impedance measurement) in highly
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