Endogenous interstitial adenosine may protect the hypoxic heart by attenuating ,B-adrenergic-induced contractile and metabolic responses, thereby reducing energy utilization. Constant-flow perfused rat hearts were used to study 1) the effect of hypoxia on isoproterenol (ISO)-induced increase in interstitial adenosine, as estimated with epicardial surface transudates, and 2) the role of endogeno...

Isoprostanes are a novel class of eicosanoids primarily formed by peroxidation of arachidonic acid. Because of their potential as inflammatory and/or hyperalgesic agents whose formation is largely independent of cyclooxygenases, we examined whether 8-iso prostaglandin E(2) (8-iso PGE(2)) or 8-iso prostaglandin F(2alpha) (8-iso PGF(2alpha)) reduces mechanical and thermal withdrawal threshold in ...

Solubility (vapor pressure) , viscosity and density have been experimentally determined for thirty-five potential refrigeration working fluids. Properties for low refrigerant concentration mixtures (0, 10, 20 and 30 weight percent refrigerant) were determined over the temperature range 0 to IOO•C (32 to 212"F) or to the critical temperature of the refrigerant, and pressure range 0 to 3,500 kPa ...

The fatty acid (FA) profiles of the myxobacteria Stigmatella aurantiaca and Myxococcus xanthus were investigated by acidic methanolysis of total cell extracts and GC or GC-MS analysis. The main components were 13-methyltetradecanoic acid (iso-15:0) and (Z)-hexadec-11-enoic acid (16:1, omega-5 cis). The biosynthesis of iso-FAs was investigated in several feeding experiments. Feeding of isovaleri...

Background & Aims: An abstract is the best source of information within a content. The structured abstract is the best representation of the main source. Writing an appropriate abstract requires adherence to standards of abstracting. The aim of this study wasto investigate the compliance of Persian abstracts of research papers in medical journals of universities of medical sciences (type 1) wit...

There is no doubt that the interest that ISO standard has aroused in the academic field has its parallel in industry. Up to the end of December 2009, at least 1,064,785 ISO 9001 (2000 and 2008) certificates had been issued in 178 countries and economies. The 2009 total represents an increase of 81,953 (+ 8%) over 2008, when the total was 982,832 in 176 countries and economies. On the other hand...