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Results for “Flocculation Tests”

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At least 217 records · Page 12Linked to original sources
PubMed1977

Qualitative evaluation of macroscopic flocculation tests for syphilis.

Five thousand two hundred and two sera were tested in parallel using the Rapid Plasma Reagin (RPR) Card Test, the Reagin Screen Test (RST), and the Venereal Disease Research Laboratory (VDRL) Slide Test. The fluorescent treponemal antibody absorption (FTA-ABS) test was then used to confirm the reactive specimens. This comparison study was to evaluate the RPR and the RST when used in a screening program. Of the total 5,202 samples, 199 (3.8%) were VDRL reactive, 187 (3.6%) were RPR reactive, and 183 (3.5%) were RST reactive. Of the 199 VDRL reactive, 116 (58.2%) were confirmed by the FTA-ABS, 137 (73.3%) of the 187 RPR reactives were confirmed by the FTA-ABS and of the 183 RST reactives, 115 (62.8%) were confirmed by the FTA-ABS. Included in this discussion are some testing and procedural problems encountered during the study.

Evaluation Studies as Topic↗
PubMed1982

[Use of the bacterial flocculation test for assessing the mutagenic properties of carcinogenic nitrosamines and nitramines].

Fluctuation test developed by Green allows to detect the mutagenicity of trace and non-toxic chemical concentrations. Mutagenic activity of both carcinogenic nitramines--nitrodimethylamine, nitrodiethylamine and nitromorpholine (0.1--10 mM) and their nitrosamine analogues-nitrosodimethylamine, nitrosodiethylamine and nitrosomorpholine (0.01--0.1 mM) was detected in fluctuation test with Salmonella typhimurium TA 98 and TA 1530 as indicator organism in the presence of postmitochondrial supernatant from liver of rats treated with Aroclor 1254. Nearly all compounds appeared to be mutagenic even in the absence of co-factors of microsomal oxygenation.

Aniline Compounds↗