A comparison of IgG anti-rubella activity in frozen serum stored in primary gel separation tubes or secondary tubes.

Suitability of frozen serum stored in gel separator primary sampling tubes for serological testing.

The suitability of frozen serum after storage in primary sampling tubes with a gel separator for serological enzyme-linked immunosorbent assay testing (hepatitis B virus surface antigen [HBs Ag], anti-HBs Ag, anti-Toxoplasma gondii immunoglobulin G [IgG], anti-rubella virus IgG, anti-cytomegalovirus IgM, and anti-Epstein-Barr virus IgM) was evaluated for 375 samples. No difference was found amo...

Serological Testing Separator Primary Sampling Tubes for Suitability of Frozen Serum Stored in Gel

Seroprevalence of CMV and Rubella in Women with Recurrent Spontaneous Abortion in Comparison with Normal Delivery

Background & Objectives: Recurrent spontaneous abortion occurs by different etiological causes including viral infections. Cytomegalovirus and rubella infections can cause or promote the recurrent fetal loss. Cytomegalovirus is one of the important viral infections which may play a role in recurrent spontaneous abortion. Also, rubella virus infection can induce abortion especially in the first ...

Protein-enhanced fluorescein chemiluminescence used in an immunoassay for rubella antibody in serum.

The chemiluminescence of fluorescein derivatives is greatly enhanced when they are conjugated to proteins. We exploited this property in devising a chemiluminescence immunoassay for rubella antibodies. In this sequential "sandwich"-type assay, tubes coated with rubella antigen are used for antibody separation and goat antibody to human IgG conjugated with fluorescein isothiocyanate is used for ...

Special collection and storage tubes for blood endotoxin and cytokine measurements.

Commercially available blood-collection tubes may be contaminated with endotoxin (315 +/- 95 pg/tube) and could therefore be unsuitable for blood collection for endotoxin measurement. Plasma separation and storage are a potential source of contamination. To avoid contamination and error, we have developed new blood collection tubes that contain heparin free of endotoxin (LPS) and a gel to separ...