Zobrazeno 1 - 10
of 37
pro vyhledávání: '"Claude Vezina"'
Autor:
Yves Fradet, Louis Lacombe, Hélène LaRue, Marie Claude Vezina, Lynne Moore, François Meyer, Bernard Têtu, Christian Pfister
Publikováno v:
Human Pathology. 30:1350-1355
The biological behavior of urothelial carcinomas remains unpredictable. The objective of this study was to determine the prognostic value of Ki-67 index in superficial papillary bladder tumors and to correlate it with the S-phase fraction (SPF) measu
Publikováno v:
The Journal of Antibiotics. 37:1231-1237
Rapamycin exhibits activity against several ascites and solid transplantable tumors; it is slightly active to inactive against leukemias. On a weight basis, rapamycin was less active than 5-fluorouracil, cyclophosphamide and adriamycin, but rapamycin
Rapamycin (AY-22,989), a new antifungal antibiotic. II. Fermentation, isolation and characterization
Publikováno v:
The Journal of Antibiotics. 28:727-732
Rapamycin is a new antifungal antibiotic produced by Streptomyces hygroscopicus NRRL 5491. It was isolated from the mycelium by solvent extraction, purified by silica gel column chromatography and crystallized as a colorless solid which melts at 183
Publikováno v:
The Journal of Antibiotics. 36:355-361
A streptomycete was isolated from a Guatemala soil sample and found to inhibit Grampositive bacteria including mycobacteria. The antibiotic-producing microorganism was characterized, identified as a new species and named Streptomyces ravidus. The ant
Publikováno v:
Canadian Journal of Microbiology. 30:515-518
We have constructed a hybrid plasmid using Streptomyces lividans plasmid pIJ 101 and Escherichia coli plasmid pSAS1206. This plasmid, designated pFSH102, is able to replicate in both hosts and the sulfonamide-resistance gene encoded by pSAS1206 is ph
Publikováno v:
The Journal of Antibiotics. 29:248-264
Increase in antimycin A production was achieved through a parallel strain and medium improvement program: a 125-fold augmentation (75 to 9,500 mug/ml) was obtained. The selective system included antimycin A productivity, conidiation, sensitivity to u
Publikováno v:
The Journal of Antibiotics. 29:265-274
Fermentation characteristics, previously studied in shake flasks, were reproduced in aerated-agitated fermenters, using three strains of Streptomyces sp. which had been selected for their high antimycin A productivity in shake flasks. Fermentation in
Publikováno v:
The Journal of Antibiotics. 31:539-545
The activity of rapamycin, a new anti-Candida antibiotic, was not affected by pH values between 6 and 8; at pH 4, however, activity was abolished. The MIC of rapamycin did not vary drastically with the size of inoculum: a ten-fold dilution of the ino
Publikováno v:
The Journal of Antibiotics. 36:1770-1773
Autor:
Claude Vezina, Kartar Singh, H. Baker, G. Piattoni, Dieter Kluepfel, S. N. Sehgal, Ann Sidorowicz
Publikováno v:
The Journal of Antibiotics. 28:497-502
A new antibiotic, naphthyridinomycin, was isolated in crystalline form from the culture filtrate of Streptomyces lusitanus AY B-1026. The antibiotic is active against a large number of both gram-positive and gram-negative bacteria, and inactive again