Costantino Signorini

  • Citations Per Year
Learn More
Plasma catecholamines were simultaneously measured in duplicate plasma samples by the fluorimetric method of Renzini et al. (1970) Clin. Chim. Acta 39, 587-594) and by the radioenzymatic method of Da Prada & Zurcher ((1976) Life Sci. 19, 1161-1174). The correlation of noradrenaline and adrenaline plasma concentrations determined by the two methods were,(More)
Purified recombinant HIV-1 p17 matrix protein significantly increased HIV-1 replication in preactivated peripheral blood mononuclear cell cultures obtained from healthy donors. Because HIV-1 infection and replication is related to cell activation and differentiation status, in the present study, we investigated the role played by p17 during the process of T(More)
A method for monitoring valproic acid in serum with a fluoroimmunoassay is described. The evaluation was performed with run-to-run and within-run reproducibility, dilution, and recovery tests. The interferences of hemoglobin, bilirubin, and triglycerides were checked, and a comparison with a gas liquid chromatographic method was also performed. The(More)
The INNO-LiPA Mycobacteria kit has been developed for detecting mycobacteria in liquid and solid cultures through amplification of the 16S-23S rRNA mycobacterial spacer region and the use of species-specific probes. The aim of this study was to verify the possible direct use of the kit on clinical samples. The study was performed retrospectively on a total(More)
For the purposes of the following study we cultured 32 strains of Mycobacterium xenopi isolated from clinical specimens and several strains of other slowly growing mycobacteria. The cultures were grown in liquid medium and then analysed--after saponification, methylation, extraction with organic solvent and washing of the organic phase--using a highly(More)
We investigated the ability of current immunometric methods for thyrotropin (TSH; thyroid-stimulating hormone) to distinguish between low-normal and subnormal hormone concentrations by using the data from an external quality assessment (EQA) survey in 1990. We computed the interassay (between-run) precision profiles from results from 101 laboratories, which(More)