High-speed (80,000 X g) pellets of plasma from leukemic patients and from normal individuals were used to prepare antisera in rabbits. The leukemic plasma pellets contained virus-like particles as determined by electron microscopy, whereas similar particles were not observed in the normal pellets. Globulin fractions from six antisera to normal pellets (NPA) and six antisera to leukemic pellets ...

Immunofluorescent techniques have been used extensively to detect the presence of antinuclear factors (ANF) in sera from patients with systemic lupus erythematosus and related disorders. Furthermore, morphological differences in the character of nuclear immunofluorescence have been considered to be of clinical as well as immunological significance (Casals, Friou, and Teague, 1963; Burnham, Fine...

Immunofluorescent staining is an informative tool that is widely used in basic research. Automation of immunostaining improves reproducibility and quality of the results. Up to now, use of automation in immunofluorescent staining was mostly limited to one marker. Here we present tyramide signal amplification based method of multiple marker immunofluorescent detection, including detection of ant...

Background: IgA nephropathy, a prevalent disease in Asia, is considered the main cause of end stage renal disease among primary glomerular disease. Objective: To determine the frequency of different clinical, histopathological and immunofluorescent characteristics of IgA nephropathy. Methods: Renal biopsies of 376 patients were received for immunofluorescent and for histopathological studies. B...

To determine the extent of Trypanosoma cruzi infection and/or transmission in the southern Amazon region of Ecuador, three indigenous communities in the provinces of Pastaza and Morona Santiago were serosurveyed. Chagatest(TM), Immunocomb(®)II and immunofluorescent (IF) assays were used. Among the 385 inhabitants examined, nine (2.34%) were seropositive for T. cruzi infection. Of the nine posit...