Abstract
Several simplified methods for treating mycobacteria to release DNA for amplification by the polymerase chain reaction (PCR) were investigated. The most effective of the methods was sonication. Samples were placed in screw-capped microcentrifuge tubes that were then placed in a plastic rack. The rack was floated in a dish of water next to the ultrasonic probe so that the ultrasonic energy was transmitted through the walls of the tubes. This allowed multiple samples to be processed safely and effectively. Forty-three clinical samples were processed by this procedure, and the crude preparations were analyzed for Mycobacterium tuberculosis by PCR. Twenty-six of these specimens contained M. tuberculosis, and 17 either had no growth or contained other species of mycobacteria. Twenty-four of the 26 (92%) positive specimens were correctly identified, and all of the negative specimens were correctly identified. This sonication procedure appears promising as a rapid, simple means of treating clinical specimens containing mycobacteria for PCR analysis.
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- Brisson-Noël A., Gicquel B., Lecossier D., Lévy-Frébault V., Nassif X., Hance A. J. Rapid diagnosis of tuberculosis by amplification of mycobacterial DNA in clinical samples. Lancet. 1989 Nov 4;2(8671):1069–1071. doi: 10.1016/s0140-6736(89)91082-9. [DOI] [PubMed] [Google Scholar]
- De Wit D., Steyn L., Shoemaker S., Sogin M. Direct detection of Mycobacterium tuberculosis in clinical specimens by DNA amplification. J Clin Microbiol. 1990 Nov;28(11):2437–2441. doi: 10.1128/jcm.28.11.2437-2441.1990. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Eisenach K. D., Cave M. D., Bates J. H., Crawford J. T. Polymerase chain reaction amplification of a repetitive DNA sequence specific for Mycobacterium tuberculosis. J Infect Dis. 1990 May;161(5):977–981. doi: 10.1093/infdis/161.5.977. [DOI] [PubMed] [Google Scholar]
- Eisenach K. D., Sifford M. D., Cave M. D., Bates J. H., Crawford J. T. Detection of Mycobacterium tuberculosis in sputum samples using a polymerase chain reaction. Am Rev Respir Dis. 1991 Nov;144(5):1160–1163. doi: 10.1164/ajrccm/144.5.1160. [DOI] [PubMed] [Google Scholar]
- Hermans P. W., Hartskeerl R. A., Thole J. E., Klatser P. R. Development of diagnostic tests for leprosy and tuberculosis. Trop Med Parasitol. 1990 Sep;41(3):301–303. [PubMed] [Google Scholar]
- Hermans P. W., Schuitema A. R., Van Soolingen D., Verstynen C. P., Bik E. M., Thole J. E., Kolk A. H., van Embden J. D. Specific detection of Mycobacterium tuberculosis complex strains by polymerase chain reaction. J Clin Microbiol. 1990 Jun;28(6):1204–1213. doi: 10.1128/jcm.28.6.1204-1213.1990. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Pao C. C., Yen T. S., You J. B., Maa J. S., Fiss E. H., Chang C. H. Detection and identification of Mycobacterium tuberculosis by DNA amplification. J Clin Microbiol. 1990 Sep;28(9):1877–1880. doi: 10.1128/jcm.28.9.1877-1880.1990. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Patel R. J., Fries J. W., Piessens W. F., Wirth D. F. Sequence analysis and amplification by polymerase chain reaction of a cloned DNA fragment for identification of Mycobacterium tuberculosis. J Clin Microbiol. 1990 Mar;28(3):513–518. doi: 10.1128/jcm.28.3.513-518.1990. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Pierre C., Lecossier D., Boussougant Y., Bocart D., Joly V., Yeni P., Hance A. J. Use of a reamplification protocol improves sensitivity of detection of Mycobacterium tuberculosis in clinical samples by amplification of DNA. J Clin Microbiol. 1991 Apr;29(4):712–717. doi: 10.1128/jcm.29.4.712-717.1991. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Sjöbring U., Mecklenburg M., Andersen A. B., Miörner H. Polymerase chain reaction for detection of Mycobacterium tuberculosis. J Clin Microbiol. 1990 Oct;28(10):2200–2204. doi: 10.1128/jcm.28.10.2200-2204.1990. [DOI] [PMC free article] [PubMed] [Google Scholar]