We evaluated a new commercially available two-site immunoradiometric assay (IRMA; BioMérieux 125I-EPO CoatRIA) for erythropoietin (EPO) in human serum. The precision (CV) was 4.1% intra-assay and 8% interassay for a serum pool with an EPO concentration of 17 int. units/L; the detection limit was 0.5 int. unit/L, one order of magnitude lower than by classical radioimmunoassay (RIA), although sta...

Samples from 33 patients being treated with digoxin and three concentrations of control material were analyzed for this drug by use of seven radioimmunoassay (RIA) kits and an automated fluorescence polarization immunoassay (FPIA) system. CVs ranged from 2.4 to 6.4% for the FPIA system and from 4.6 to 7.4% for two RIA methods. In the analysis of between-method variability of RIA kits, CVs range...

To assess the clinical value of a sensitive immunoradiometric assay for TSH (IRMA-TSH), serum IRMA-TSH levels were compared with those of a radioimmunoassay (RIA-TSH) in twenty-eight patients with congenital hypothyroidism. Among 144 samples taken from them, 44 samples showed undetectable RIA-TSH, while only 10 samples were undetectable by IRMA-TSH. In two patients prospectively followed, RIA-T...

A total of 1628 human plasma samples from Cycle 1 of the Canadian Health Measures Survey were assayed for total 25-hydroxyvitamin D using the DiaSorin RIA method and the Diasorin “LIAISON 25 OH Vitamin D Total” method. Bland-Altman comparison showed an average bias of 4.8 ± 16.7 nmol/L (6.3%: P<0.001) with the LIAISON method giving higher values. The relationship was investigated using linear a...

OBJECTIVE The aim of this study is to analyze the differences in the incidence, predicting factors, and clinical course of chronic subdural hematoma (CSDH) following surgical clipping between unruptured (UIA) and ruptured intracranial aneurysm (RIA). METHODS We conducted a retrospective analysis of 752 patients (UIA : 368 and RIA : 384) who underwent surgical clipping during 8 years. The inci...

AIM To evaluate four different commercially available assays for anti-double stranded DNA (dsDNA) detection and compare them with the in-house radioimmunoassay according to Farr (FARR-RIA) in order to select the optimal primary method for use in combination with FARR-RIA. METHODS Sera from 583 consecutive patients sent to our laboratory for routine diagnosis, 156 selected patients with autoim...

The purpose of this study was to compare the conventional radioimmunoassay (RIA) to an enzyme-linked immunoassay (EIA) for the measurement of Histoplasma antigen in banked urine specimens. A correlation between the two methods would allow the EIA to be used as a nonradioactive alternative to the established 125I RIA. The study used stored urine from patients diagnosed with histoplasmosis during...

O presente artigo busca cruzar as no��es de l�ngua e linguagem performadas pela subst�ncia leite diante uma metaf�sica ocidental que n�o parece se sustentar, aproximando essas ideias do conceito s�mbolo capital. Benveniste, Saussure Donna Haraway nos ajudam no caminho pensar leite,�linguagem capitalismo ao longo da hist�ria, testando os limites taxon�micos das excepcionalidades humana, mam�fera...

In the relativistic impulse approximation (RIA), we study symmetry potentials and in-medium nucleon-nucleon $(NN)$ cross sections with Nambu--Jona-Lasinio (NJL) model that features chiral symmetry. The plays a fundamental role in nonperturbative physics strong interaction is anticipated to add restrictive effects on $NN$ sections. For comparison, also perform usual mean-field (RMF) model. numer...

We investigated post-irradiation variations of the radiation induced attenuation (RIA) polymer perfluorinated (CYTOP) optical fiber exposed to gamma radiation. The RIA measured five months after irradiation was qualitatively similar that several hours irradiation. However, quantitatively evolution significantly depends on spectral range: in visible range, transmission partly recovers, while inf...