Labeled avidin-biotin (LAB) enzyme-linked immunosorbent assay (ELISA) was applied to detect Japanese encephalitis OE) antibody in swine sera. Purified laGAr-01 vaccine of lE, biotin labeled anti-swine Ig or IgM rabbit IgG conjugate and horseradish peroxidase (HRP) were employed in the assay. The f1 chain specific anti-IgM conjugate could detect only IgM antibody, but the anti-Ig conjugate could...

Serum samples from 22 patients with proven typhoid fever, 60 febrile nontyphoidal patients, and 120 healthy subjects were tested for immunoglobulin A (IgA), IgG, and IgM anti-Salmonella typhi lipopolysaccharide antibodies by an enzyme-linked immunosorbent assay. The levels of all three classes of immunoglobulin anti-lipopolysaccharide were higher in typhoid patients than in controls; the test f...

In this communication we report 46 cases of acute liver failure in children diagnosed at the Hospital Infantil Nossa Senhora da Glória in Vitória, E Santo. Serology for IgM anti-HAV, IgM anti-HBc, HbsAg, anti-HCV and biochemical tests were performed in all cases in a routine laboratory. The M/F ratio was 1.1:1 and the mean age was 4.7 +/- 3.2 years, without gender difference. Anti-HAV IgM+ in 3...

OBJECTIVES To determine the prevalence of anti-cyclic citrullinated proteins (anti-CCP) and IgM rheumatoid factor (RF) in sera of patients with TB compared with healthy controls. PATIENTS AND METHODS 47 consecutive patients with recently diagnosed active pulmonary TB and 39 healthy controls were studied. Data were collected by questionnaire on clinical features of the disease, duration of sym...

Blood specimens from 133 patients clinically diagnosed as dengue virus infection by physicians in Nakhon Phanom Hospital, Thailand, were examined to detect anti-dengue IgM and IgG antibodies by antibody capture ELISA. The blood specimens were divided into 3 types of storage; (1) frozen serum aliquots, (2) whole blood dried on filter paper strips, and (3) sera dried on filter paper strips. These...

Protein phosphorylations are rapidly induced in intact B cells by antibodies to surface immunoglobulin (anti-IgM) and by phorbol 12-myristate 13-acetate (PMA). A comparison of the molecular weight, isoelectric points, phosphopeptides, and phosphoamino acids of the phosphoproteins induced by anti-IgM and by PMA suggests that anti-IgM acts through the activation of protein kinase C. This conclusi...

The autoimmune disease antiphospholipid syndrome (APS) is characterized by the presence of anticardiolipin antibodies (aCL), along with anti-β2-glycoprotein I (β2GPI) antibodies and lupus anticoagulant (LA). In this study, we developed a time-resolved fluoroimmunoassay (TRFIA) system for simultaneous quantification of aCL IgG and IgM. A 96-well microtiter plate precoated with the complex of car...

Through the use of absorbed idiotypic antisera prepared against single isolated monoclonal IgM anti-gamma-globulins, partial cross-idiotypic specificity was demonstrated with other IgM anti-gamma-globulins. Such antisera classified these proteins into at least three groups. The major group which included 60% of the anti-gamma-globulins was particularly homogeneous. The anti-gamma-globulin speci...

A total of 45 patients with acute hepatitis were detected in a medical facility of Bangladesh over a period of 6 months. All of them were physicians, nurses, students or employees of the hospital. About 50% of these patients suffered from acute hepatitis within a period of 2 months. All of them had clinical and biochemical evidences of acute hepatitis. All of them shared common working places a...

A study of epidemic transmission of Chikungunya virus (CHIK) was initiated in April 1999 in Yogyakarta, Indonesia. Three hundred seventeen volunteers from three kelurahans (sub-districts) were recruited. Anti-CHIK IgG antibodies were detected in 68% to 74% of cases and 28% to 32% of controls. In the kelurahan with no reported CHIK illness, 29% of cases and 28% of controls had anti-CHIK IgG anti...