The antioxidant activity of capsaicin, as compared to BHT and melatonin, was determined by the direct measurement of lipid hydroperoxides formed upon linoleic acid autoxidation initiated by AIBN. The formation of four isomeric lipid hydroperoxides was detected after reverse-phase HPLC separation. Data from three detectors, UV absorption, glassy carbon electrode electrochemical detection, and po...

Antisera prepared against strains of Streptococcus mutans, particularly strain BHT, contain antibodies to the membrane lipoteichoic acid component that will cross-react with lipoteichoic acids from three species of lactobacilli. A more detailed study of the antibodies to strain BHT confirmed that the antibodies are specific for the polyglycerol phosphate component common to the lipoteichoic aci...

Mice secrete substantial amounts of protein, particularly proteins called the major urinary proteins (MUPs), in urine. One function of MUPs is to sequester volatile pheromone ligands, thereby delaying their release and providing a stable long-lasting signal. Previously, only MUPs isolated from male mice have been used to identify ligands. Here, we tested the hypothesis that MUPs derived from fe...

d-[3H]Lysergic acid diethylamide (LSD) bound to both dopamineand serotonin (5HT)-sensitive sites in a particulate fraction derived from the central nervous system of the snail Helix pomatia. Conditions were found which enabled the two sites to be studied independently. ['HILSD appeared to have a slightly higher affinity for dopamine-sensitive binding (Kd = 0.5 n ~ ) than for BHT-sensitive bind...

Electrochromic materials can tune the illumination and heat exchange of a building with environment thereby save energy in lighting, heating, air conditioning cost-effective way, which is vital realizing carbon neutrality. 2D frameworks such as coordination nanosheets (CONASHs) that are widely explored for wide range applications storage conversion be cluster novel electrochromic materials. In ...

1. The major metabolites of 3,5-di-tert.-butyl-4-hydroxytoluene (BHT) in the rat are 3,5-di-tert.-butyl-4-hydroxybenzoic acid (BHT-acid), both free (9% of the dose) and as a glucuronide (15%), and S-(3,5-di-tert.-butyl-4-hydroxybenzyl)-N-acetylcysteine. 2. The mercapturic acid does not appear to derive from the usually accepted enzyme mechanism, and may involve a non-enzymic reaction between BH...

The modulating effect of five dose levels of butylated hydroxytoluene (BHT) on liver and bladder carcinogenesis induced in rats by concurrent exposure to 2-acetylaminofluorene (AAF) was investigated. AAF at a low dose of 50 ppm was fed simultaneously with concentrations of 100, 300, 1000, 3000, or 6000 ppm BHT in the diet to male F344 rats for up to 76 weeks. By 12 weeks, AAF alone induced alte...

Breath holding was used as the basis of a simple test of respiratory chemosensitivity. Breath holding was begun at selected degrees of hypercapnia produced by CO2 rebreathing. In 16 healthy control subjects there was a linear regression of the log of breath-holding time on the PCO2 at the start of breath holding. Breath-holding time (BHT) and the slope of a log BHT/Pco2 plot were closely correl...

BACKGROUND Conflict still remains as to the benefit of angioembolization (AE) for non-operative therapy (NOT) of blunt hepatic trauma (BHT). The aim of this study was to determine whether AE could result in lower failure rates in hemodynamically stable BHT patients with high failure risk factors for NOT, and to systematically evaluate the effectiveness of AE for NOT of BHT. MATERIAL AND METHODS...

Background The sensitivity of peripheral chemoreflex is a marker of the severity of heart failure and the prognosis of the outcome in these patients. The assessment of chemosensitivity in these patients remains an actual problem. Objective The aim of the study was to explore the relationship between a Breath-Holding Test (BHT) and single-breath carbon dioxide test and to evaluate the reliabil...