Kininase II (angiotensin I-converting enzyme) is generally accepted to be the enzyme responsible for the conversion of angiotensin I (A I) to angiotensin II (A II). This study examined the response of the microvasculature of the hamster cheek pouch to the local application of A I, A II, and the renin substrate, tetradecapeptide (TDP). A I and TDP caused a localized vasoconstriction that was not...

Methylglyoxal was a weak inhibitor of translation in the r e t i c u l o c y t e l y s a t e c e l l f r e e system and it did not display cap-dependent inhibition. A similar inhibition was obtained in a wheat-germ cei l f ree system that d i sp layed extensive cap-dependent inhibition with the cap ana logue 7 m e t h y J g u a n o s i n e phosphate . These results show that the chemical reacti...

1. Lower-body negative pressure (LBNP) was used to stimulate sympathetic reflexes in anaesthetized cats. At -50 mmHg for 10 min it caused transient reduction in central venous pressure and systemic arterial blood pressure. Arterial blood pressure was then restored within 30 s and there was a tachycardia. Central venous pressure showed only partial recovery. The resting level of plasma renin act...

Petroleum is a complex mixture of lipophilic chemicals, some of which are likely to be substrates for the microsomal mixed function oxygenases. Petroleum retailers, by virtue of their occupational exposure potential, are a group likely to receive relatively heavy exposure to petroleum products in comparison with the general public. Urinary thioether output may provide a simple, non-invasive tec...

Design of a system used for characterizing gas sensing materials is described. It is distinctive of being able to measure electrical and optical responses of a sample simultaneously, control a number of measurement parameters, perform fast exchange of gaseous environment, and be fully controlled automatically. These features make the system to be versatile in determining most concerned performa...

Lithium metal batteries (LMBs) enabled by quasi-solid electrolytes are under consideration for their prospect of reliable safety and high energy density. The limited oxidative stabilization inferior chemical compatibility toward high-voltage cathodes a long-standing challenge. Herein, we report that an additive level (0.05 M) LiPF6 is introduced to polymeric concentrated electrolyte (10 M LiFSI...

Background: Although idiopathic azoospermia is a common reason for male infertility, the known etiological factors for this disease are remarkably very little. Recent evidences suggest that some occupational physical and chemical hazards could have negative effects on reproductive function and semen quality parameters of exposed workers. This study conducted to compare demographic characteristi...

This article presents a concise overview of Unicode 3.2 and its ISO equivalent, ISO/IEC 10646. It introduces and summarizes the main features and design principles before examining the character encoding model, normalizations forms and common processes such as sorting and rendering and their relationship with Unicode. MOTS-CLÉS : Unicode, ISO/CEI 10646, formes normalisées, modèle de caractères,...

To explain how converting enzyme inhibition could improve the prognosis in cardiac insufficiency, the effect of converting enzyme inhibition (CEI) by S9490-3 (Perindopril) treatment for 2 months (treated infarctions, n = 18) on hormonal plasma variables and the quantitative and qualitative changes in myocardium were studied in an experimental model of left ventricular infarction in rats (untrea...