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M9630351.TXT
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1996-02-27
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Document 0351
DOCN M9630351
TI Micro-carrier-test: evaluating disinfectants for HIV.
DT 9603
AU Shimakoshi Y; Second Department of Internal Medicine, Osaka Medical
College,; Japan.
SO Kansenshogaku Zasshi. 1995 Oct;69(10):1151-8. Unique Identifier :
AIDSLINE MED/96081555
AB To determine the effect of disinfectants against viruses in vitro, I
devised the Micro-Carrier-Test of dry-fixed virus-infected cells. Human
immunodeficiency virus type 1-infected Molt-4 cells (1 x 10(5) cells in
5 microliters of 10% fetal bovine serum) were dry-fixed at the bottom of
each well of a 96-well flat-bottomed microtiter plate for 120 minutes at
room temperature. Disinfectants were added and allowed to remain for
designated times and the wells were washed three times with PBS.
Uninfected Molt-4 cells (1 x 10(4) cells/well) were inoculated and
cultured for 4 weeks. The culture supernatant was harvested to measure
reverse transcriptase activity by non-radioisotopic reverse
transcriptase assay every week. Residual cytotoxicity of the
disinfectant was determined by cytotoxicity assay. To evaluate the new
method, the virucidal efficacy of several well-known disinfectants was
reevaluated. Dose- and time-dependent effects of the disinfectants were
determined. The minimal effective concentrations after 5 minutes of
contact were 20% ethanol, 0.01% glutaraldehyde and 0.1% sodium
hypochlorite. These results are almost the same as those reported
previously, but there are some discrepancies. The differences between
the present and previous protocols are discussed. This
Micro-Carrier-Test promises to be useful in the screening of
disinfectants.
DE Alcohol, Ethyl Cell Line/MICROBIOLOGY Disinfectants/*STANDARDS
Evaluation Studies Formaldehyde Glutaral Human HIV/*GROWTH &
DEVELOPMENT Microbial Sensitivity Tests Sodium Hypochlorite Support,
Non-U.S. Gov't JOURNAL ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).