1,721,074 research outputs found
Procedimento di Purificazione dei Reflui di Cartiera per il Recupero e Riutilizzo in Produzione dell’Acqua Raffinata
No full textPURIFICATION OF PULP AND PAPER WASTEWATER, WITH MEMBRANE TECHNOLOGY, FOR WATER REUSE IN A CLOSET LOOP
No full textSheep/goat whey and “scotta” treatment with membrane technologies for a commercial exploitation of whey protein and lactose
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The influence of testosterone on purine nucleotide metabolism in rat liver
No full textPurine nucleotide metabolism was studied in rat liver by following the incorporation of 14C-formate into soluble nucleotides, uric acid and RNA ribonucleotides. After castration, GMP formation was less than that of AMP, and purine nucleotide catabolism and RNA synthesis decreased. Testosterone administration did not modify GMP or AMP synthesis, but restored purine nucleotide catabolism and RNA production to normal values. These results demonstrate the influence of testosterone on purine nucleotide metabolism in a non-reproductive organ
The use of human polymorphonuclear leukocytes vitality and chemotaxis for the "in vitro" estimation of acute toxicity the of first 10 chemicals from the MEIC list.
No full textOn-line determination of glucose produced by hydrolysis of cellobiose realised with a cellular bioreactor
No full textThe Regulation of Alanine and Aspartate Aminotransferase by different aminothiols and by Vitamin B6 Derivatives
No full textWe examined the effects on alanine aminotransferase and aspartate aminotransferase of different aminothiols (L-cysteine, D-cysteine, cysteamine, L-cysteine ethyl ester, L-cysteine methyl ester) and several vitamin B-6 derivatives (pyridoxal, pyridoxamine, pyridoxol, pyridoxol 5'-phosphate), before and after treatment with KOCN, which transforms these molecules into the corresponding carbamoyl derivatives. Only GPT, and not GOT, was specifically inhibited by L-cysteine and, to a lesser extent, by D-cysteine. The association reaction: PLP + apo GPTholo GPT was inhibited by the vitamin B-6 derivatives, and this inhibition was prevented by pretreatment of the vitamin B-6 derivatives with KOCN. All the observed effects occurred at pH 7, 37 degrees C, at mM and even lower concentrations of reagents. Hence, they all potentially play a physiological role, in the regulation of the PLP dependent enzymes and of the vitamin B-6 levels in the cell
Molecular diagnosis of colon-rectal tumors. Preparation and purification of neu probe. Note 2.
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