This study aimed to analyze the angiotensin-converting enzyme (ACE-I/D) allelic and genotypic frequencies in Brazilian soccer players of different ages. The study group comprised 353 players from first-division clubs in the under (U)-14, U-15, U-17, U-20, and professional categories. The allelic and genotypic frequencies did not differ significantly in any of the categories between the group of...

L-681,176 (1, C12H23N5O7) is an inhibitor of angiotensin converting enzyme produced by Streptomyces sp. MA 5143a. The structure of L-681,176 has been determined by NMR and mass spectral analysis.

Using hippuryl-L-histidyl-L-leucine as a substrate analog, serum angiotensin converting enzyme (ACE) was spectrophotometrically estimated in patients with bronchial asthma. There were significantly low activities of serum ACE in 115 patients with bronchial asthma irrespective of the presence or absence of acute attack. The activity of serum ACE was reduced more markedly in the chronic type of b...

The copper complex [KGHK-Cu]+ demonstrates catalytic inactivation of human angiotensin converting enzyme at sub-saturating concentrations, under oxidative conditions, with an observed rate constant k approximately 2.9 +/- 0.5 x 10(-2) min(-1).

Phenacein, an inhibitor of angiotensin-converting enzyme, has been isolated from the fermentation broth of a Streptomyces species belonging to the Streptomyces tanashiensis-zaomyceticus group. The inhibitor was shown to be 3,6-dihydroxy-1-phenazinecarboxylic acid by spectroscopic, degradative and synthetic methods.

Quinoa protein concentrate was hydrolyzed with alcalase to obtain a hydrolysate that was fractionated by ultrafiltration using 10000and 5000-molecular-weight cutoff membranes. Functional properties of the protein concentrate, protein hydrolysate, and membrane permeates were compared at different pH values. Protein solubility of the hydrolysate and membrane permeates were significantly higher (P...

Chronic heart failure is widely recognised as a common and escalating problem that causes major disability and often shortens life. Diuretics and digoxin have formed the mainstay of treatment for many years. Clinical trials have demonstrated that angiotensin converting enzymes and bblockers, in selected patients, improve symptoms and reduce mortality. Angiotensin-II antagonists and spironolacto...

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