Introduction : Human cytomegalovirus (HCMV) is able to go into latency and is the most common cause of congenital infections in humans. Its clinical manifestations range from asymptomatic forms to severe fetal damage, and in rare cases, fetal death due to abortion. This prospective cross-sectional study was designed to determine the seroprevalence of HCMV infection in pregnant women attending...

In conjunction with the 2012 Yosemite hantavirus outbreak, the number of sera our facility tested for hantavirus antibodies increased. We tracked test results and used the data set to determine if a more efficient testing algorithm was possible. Sera were screened using laboratory-developed pan-hantavirus IgG and IgM enzyme immunoassays (EIAs), with an index of >1.10 defined as positive. Sera t...

Wilms tumor gene WT1 is expressed at high levels in hematopoietic malignancies, such as leukemias and myelodysplastic syndromes (MDS), and in various kinds of solid tumors, including lung cancer, and it exerts an oncogenic function in these malignancies. IgM and IgG WT1 antibodies were measured by means of dot blot assay in 73 patients with hematopoietic malignancies (16 acute myeloid leukemia ...

Toxoplasma gondii is an obligate intracellular protozoan that is distributed worldwide. Recently, several tests for avidity of Toxoplasma IgG antibodies have been introduced to help discriminate between recently acquired and distant infections. The study was conducted in Jawaharlal Nehru Medical College and Hospital, India from February 2011 to September 2012. Serum specimens were subjected to ...

The subset of B lymphocytes having IgG on their surfaces was purified from human spleen and blood using a fluorescence-activated cell sorter (FACS). This subset constituted about 15% of B lymphocytes. The remaining non-IgG-bearing B cells were also obtained for study. These two populations were examined for (a) their expression of other surface immunoglobulin isotypes, (b) their ability to give...

Cryoproteins observed in patients with systemic lupus erythematosus were shown to be of "mixed type," consisting largely of IgG and IgM. The IgM moiety possessed anti-IgG globulin reactivity and precipitated in the cold after mixing with a source of IgG. The IgM fraction of one cryoprotein precipitated only with the same patient's IgG. Antisera prepared against purified cryoproteins regularly r...

Previous reports proposed that the IgM anti-dsDNA antibody is protective for lupus nephritis. In this cross-sectional study, we aimed to compare clinical features of systemic lupus erythematosus (SLE) patients positive for IgG anti-dsDNA alone with those presenting both IgG and IgM anti-dsDNA. Anti-dsDNA antibodies, urinary examination and complement levels were assessed in the day of appointme...

Cryoglobulinaemia refers to circulating cryoglobulins. Cryoglobulins are immunoglobulins, which precipitate in temperatures below 37oC and dissolve upon rewarming [2]. Cryoglobu‐ linaemia is classified in 3 types based on clonality and immunoglobulin class. In particular, type I consists of monoclonal IgM or IgG immunoglobulin, type II is a mixture of monoclo‐ nal IgM and polyclonal IgG, while ...

Adult volunteers were injected with a combined meningococcal group A and group C polysaccharide vaccine. Immunoglobulin M (IgM) and IgG antibody levels against both polysaccharides were measured in serum samples taken 14 days as well as 3 years after vaccination. For both group A and group C polysaccharides, the IgM and IgG antibody levels at 14 days postvaccination were positively related. The...

Biotin-binding IgG (B-IgG) in human sera was quantified using previously developed F(ab')(2)anti-human IgG-coated multiwell microplates (Muratsugu M. et al., 2003, Biol. Pharm. Bull., 26, 1605--1608). The levels of B-IgG in sera, however, were higher than those we predicted. In this study, we modified the assay using F(ab')2anti-human IgG-coated multiwell microplates and successfully quantified...