Biomedical subjects
J Sabate
Publications and source records attributed to J Sabate.
Diversity of Saccharomyces strains in wine fermentations: analysis for two consecutive years.
An ecological study of Saccharomyces cerevisiae strains in spontaneous alcoholic fermentation has been conducted in the same winery for two consecutive years (1994 and 1995). Yeast cells were identified and characterized using mitochondrial DNA restriction analysis. Although a great diversity of wild strains was observed, a sequential substitution of S. cerevisiae strains during the different phases of fermentation was detected. Furthermore, the most frequent strains were encountered in both years, and the dynamic populations were not influenced by climatic conditions. Finally, the RsaI restriction enzyme produced a species-specific pattern which allowed the identification of all the isolates as S. cerevisiae.
The Vegetarian Adolescent.
Ecologic and philosophic as well as health concerns have led to an increasing number of adolescent vegetarians. The various types of vegetarianism differ substantially in dietary composition. Benefits of the vegetarian diet must be balanced by careful attention to ensuring adequate intake of protein and amino acids as well as certain vitamins and minerals that tend to be less available in plant foods.
Effect of dietary protein on serum insulin and glucagon levels in hyper- and normocholesterolemic men.
This study was designed to test the effect of dietary protein on blood levels of insulin and glucagon. Twelve normocholesterolemic (less than 200 mg/dl) and 11 hypercholesterolemic greater than 240 mg/dl) healthy male subjects, 31-62 years of age, were randomly given 3 liquid test meals 1 week apart. Meals were identical except for the protein source (soybean, casein, or protein free). Blood was drawn at fasting, and 0.5 and 2 h postprandially. Insulin and glucagon levels were measured by radioimmunoassay. Hypercholesterolemic subjects had a higher (P less than 0.05) insulin/glucagon ratio (1.5) than normocholesterolemic subjects (0.7) 2 h post-prandially when fed the casein test meal. There was no significant difference following the soybean test meal. This implies that the post-prandial insulin/glucagon ratio was affected by the amino acid composition of the diet. There was a consistently higher insulin response to all test meals among hyper- versus normocholesterolemic subjects. These results are consistent with our hypothesis that the hypocholesterolemic effects of soybean protein and the hypercholesterolemic effects of casein were mediated by altered levels of insulin and glucagon.
Erythromycin and cyclosporine.
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[New angiographic method for the diagnosis of tricuspid insufficiency by means of superior cavography].
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[Heparinization and incidence of thromboembolism in left cardiac catheterization by femoral percutaneous technic].
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