1,721,163 research outputs found
Comparison of three commercially available kits for routine grouping of streptococci on the basis of biochemical tests, coagglutination and latex agglutination
No full textAntibiotico resistenza dei ceppi batterici isolati in alcuni reparti di due nosocomi italiani.
No full textPhosphatase activity of staphylococci is constitutive in some species and repressed by phosphates in others
No full textThe phosphatase activities of colonies of staphylococcal strains belonging to the 10 species most frequently isolated from specimens of human origin were evaluated on media with undetermined inorganic phosphate contents and on media supplemented with known amounts of phosphates. All strains of all species tested were phosphatase positive on plates that were not supplemented with inorganic phosphates when the pH of the medium was high. In media supplemented with 0.3% phosphates at low and high pH, all strains of Staphylococcus aureus, almost all strains of S. epidermidis and S. xylosus, and none of the other species tested were phosphatase positive. Thirty S. simulans strains were grown in broths at pH 7 with and without phosphates, and the phosphatase activities of the cells were assayed at pH 5.5 and 8 in the absence of phosphates. At pH 8, all strains gave a strong positive reaction when grown in the absence of phosphates and a negative reaction when grown in the presence of these salts at 0.3%. It was concluded that all the species of staphylococci tested possess phosphatase activity and that the staphylococcal phosphatases are constitutive in some species and repressed in others
[Bacterial control in the operating room].
No full textThirty-nine patients with liver tumours have been submitted to regional arterial
chemotherapy by means of either totally implantable Infusaid-400 pumps (22 c.) or
implantable ports (17 c.). The latter were subsequently perfused with external
pumps. There was one single major operative complication and no operative deaths.
Most patients underwent continuous Fudr infusion. Access related complications
occurred in both groups. Treatment was stopped for access related complications
in 18.4% and 29.4% of cases out of the pump and port groups respectively. In most
of those cases, however, several cycles of chemotherapy had already been
performed. The Infusaid-400 pumps showed a 12-month functional duration of 57%
with a 13-month median, the 10-month duration of ports being 67%. The difference
was not significant. The new implantable systems give better results in
comparison with traditional regional access methods, the functional performances
of the port systems appearing very similar to the totally implantable pumps, with
an obvious advantage for the pumps as far as quality of life is concerned
Simplified lyogroup system, a new method for routine identification of staphylococci: description and comparison with three other methods
No full textClinical distribution and antibiotic sensitivities of staphylococcal strains isolated over an eight-month period.
No full textMicrococci demonstrate a phosphatase activity which is repressed by phosphates and which can be differentiated from that of staphylococci.
No full textIn vitro studies on activity of the association trimethoprim-sulphamethopyrazine as compared to the association trimethoprim-sulphamethoxazole against various human pathogens
No full textThe effectiveness of the associations trimethoprim-sulphamethopyrazine and trimethoprim-sulphamethoxazole against 203 human pathogens including strains of several different Gram-negative and Gram-positive species have been compared. The two associations have proved a virtually identical effectiveness against the pathogens tested
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