Previous analyses of glycolytic metabolites in Artemia embryos indicate that an acute inhibition of glucose phosphorylation occurs during pHi-mediated metabolic arrest under anoxia. We describe here kinetic features of hexokinase purified from brine shrimp embryos in an attempt to explain the molecular basis for this inhibition. At saturating concentrations of cosubstrate, ADP is an uncompetiti...

Previous analyses of glycolytic metabolites in Artemia embryos indicate that an acute inhibition of glucose phosphorylation occurs during pHi-mediated metabolic arrest under anoxia. We describe here kinetic features of hexokinase purified from brine shrimp embryos in an attempt to explain the molecular basis for this inhibition. At saturating concentrations of cosubstrate, ADP is an uncompetiti...

Thermal inactivation kinetic studies are necessary to determine heat resistances of spores in the development of new thermal processes for low-acid shelf-stable products. Most currently available sample holders used for solid and semi solid samples in the kinetic studies take long time to reach the target sample temperature, hence fail to provide isothermal condition. In this research, novel al...

In this work, the thermal decomposition of a lithium ion battery electrolyte (1 M LiPF6 in ethylene carbonate/ ethyl methyl carbonate, 50/50 wt%) with a focus on the formation of organophosphates was systematically studied. The quantification of non-ionic dimethyl fluorophosphate and diethyl fluorophosphate was performed with synthesized standards by gas chromatography-mass spectrometry. Due to...

Derangements of mineral metabolism occur during the early stages of chronic kidney disease (CKD). Hyperphosphatemia develops in the majority of patients with ESRD and has long been associated with progression of secondary hyperparathyroidism and renal osteodystrophy. More recent observational data have associated hyperphosphatemia with increased cardiovascular mortality among dialysis patients....

Haemophilus influenzae type b (Hib) is a Gram-negative bacterium causing diseases such as meningitis, pneumonia, epiglottis, cellulitis, septicemia and arthritis, among others. Hib-caused meningitis / Hib meningitis is a very serious disease with a death rate of more than 50 % throughout the world; therefore obtaining a vaccine against this bacterium is a goal of the highest priority. The prese...

Various attempts have been made in this laboratory to eliminate the host components surrounding Sendai virus particles. Procedures such as fluorocarbon treatment, sonication and methanol precipitation resulted in the loss of infectious titer of the test materials. However adsorption on and elution from chicken red cells or aluminum phosphate gel did not cause loss of infectious titer.1,2,3) Bec...

In this study, both experimental and theoretical approaches, including absorption spectra, fluorescence emission spectra, 1H- and 31P-NMR, electrospray ionization mass spectrometry (ESI-MS), pH-potentiometry and theoretical approaches using the BEST & SPE computer programs were applied to study the competitive complexation between ciprofloxacin (CIP) and b-nicotinamide adenine dinucleotide phos...

TWRS wastes contain certain chemical components which, either because of their limited solubility or volatilization at high temperatures, present problems for conventional vitrification technologies. The current task completed by BNL concerns the use of low temperature glasses for tank waste remediation. A literature review of existing technologies highlighted lead-iron-phosphate glasses, with ...

A number of studies have indicated that parathyroid extract increases the renal excretion of phosphate (1-6). This effect appears to result from a depression of the renal reabsorption of phosphate (6). Endogenous secretory activity of the parathyroid glands has been related to the extracellular concentration and/or the dietary intake of calcium and phosphate. Although dietary variations of thes...