There is a discrepancy between in vitro cholesterol dissolving efficacy of methyl-tert-butyl ether (MTBE) and ethyl propionate and cholesterol gall stone dissolution in vivo. This study investigated whether the presence of bile changes the cholesterol dissolving capacity of MTBE and ethyl propionate. The addition of dimethylsulphoxide to MTBE or ethyl propionate was also studied to discover if ...

Biodiesel, defined as mono-alkyl esters of long-chain fatty acids derived from vegetable oils or animal fats, is an attractive renewable fuel alternative to conventional petroleum diesel fuel. Biodiesel produced from oils such as cottonseed oil and poultry fats suffer from extremely poor cold flow properties because of their high saturated fatty acid content. In the current study, Ethyl Levulin...

The fruity odours of wine are largely derived from the synthesis of esters and higher alcohols during yeast fermentation. The ATF1- and ATF2-encoded alcohol acetyltransferases of S. cerevisiae are responsible for the synthesis of ethyl acetate and isoamyl acetate esters, while the EHT1-encoded ethanol hexanoyl transferase is responsible for synthesizing ethyl caproate. However, esters such as t...

A mast cell protease has been purified over 260-fold from rat thyroid homogenates. The purified enzyme hydrolyzes denatured thyroglobulin, denatured hemoglobin, and fibrinogen. It also rapidly hydrolyzes the ester substrates, benzoyltyrosine ethyl ester, benzoylphenylalanine ethyl ester, and acetyltyrosine ethyl ester. The pH optimum for thyroglobulin and benzoyltyrosine ethyl ester hydrolysis ...

BACKGROUND AND PURPOSE Spinal cord injury (SCI) triggers a series of endogenous processes, including neuroinflammation and reactive astrogliosis, which may contribute to the failure of neural regeneration and functional recovery. In the present study, the effect of ethyl pyruvate on spinal cord repair was explored. EXPERIMENTAL APPROACH Functional assessment and histological analyses of astro...

BACKGROUND The quantitative measurement of urinary metabolites in sewage streams and the subsequent estimation of consumption rates of the parent compounds have previously been demonstrated for pharmaceuticals and narcotics. Ethyl sulfate and ethyl glucuronide are excreted in urine following the ingestion of alcohol, and are useful biomarkers for the identification of acute alcohol consumption....

brain single-photon emission computerized tomography (spect), in particular, with perfusion agents or with neuroreceptor imaging radiopharmaceuticals, is rapidly becoming a clinical tool in many neurologic and psychiatric conditions. this imaging modality has been used for diagnosis, prognosis assessment, evaluation of response to therapy, risk stratification, detection of benign vs. malignant ...

graft polymerization of acrylic acid (aa) and ethyl methacrylate (ema) onto starch (st) were carried out in aqueous solution using ceric ammonium nitrate (can) as redox system under n2 atmosphere. the effect of ph, reaction time, temperature, concentrations of can, st, and monomers on the graft yield was investigated. monomer reactivity was in the following order: aa>ema.the kinetics of the gra...

turnips with a long history of usage, are helpful in preventing breast and prostate cancer, inflammation and body`s immune system dysfunction. in this study, we investigated the effects of chloroform, ethyl acetate and methanolic extracts of brassica rapa l. on cell-mediated immune response in mice. chloroform, ethyl acetate and methanolic extracts of b. rapa glands were prepared by maceration ...