NDLI: Simple, sensitive, and specific detection of human immunodeficiency virus type 1 in clinical specimens by polymerase chain reaction with nested primers.

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Simple, sensitive, and specific detection of human immunodeficiency virus type 1 in clinical specimens by polymerase chain reaction with nested primers.

Content Provider	PubMed Central
Author	Albert, J. Fenyö, E. M.
Abstract	A simple, sensitive, and specific polymerase chain reaction (PCR) protocol for the detection of human immunodeficiency virus type 1 (HIV-1) is described. We have improved all three PCR steps: sample preparation, DNA amplification, and detection of the amplified product. Some of the improvements have been described previously, but they have never been combined into a complete PCR protocol. Peripheral blood mononuclear cells were lysed directly in a buffer containing sodium dodecyl sulfate, Triton X-100, and proteinase K. This crude cell lysate was amplified in a two-step PCR, first with outer primers and then with inner primers nested within the first primers. The PCR product was visualized by agarose gel electrophoresis and ethidium bromide staining. Thus, we avoided conventional DNA extraction as well as hybridization for the detection of the PCR product. The samples were analyzed with four sets of nested primers (JA4 through JA7, JA9 through JA12, JA13 through JA16, and JA17 through JA20) designed to amplify HIV-1 gag, env gp120, env gp41, and pol sequences, respectively. We were able to amplify HIV-1 sequences in all samples from 90 HIV-1-seropositive individuals with mostly mild symptoms. Of these individuals, 24 were negative in HIV-1 isolation and 9 were selected because they were infected by African and Haitian HIV-1 strains. Eighty-five (94%) individuals were positive with at least three of four primer sets. Samples from 26 healthy blood donors, as well as cells infected in vitro with human immunodeficiency virus type 2 and human T-cell leukemia virus type I, were negative in PCR, thus demonstrating the specificity of the amplification.
Starting Page	1560
File Format	PDF
ISSN	1098660X
e-ISSN	1098660X
Journal	Journal of Clinical Microbiology
Issue Number	7
Volume Number	28
Language	English
Publisher Date	1990-07-01
Access Restriction	Open
Subject Keyword	Research in Higher Education
Content Type	Text
Resource Type	Article
Subject	Microbiology (medical)

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