PMID- 17376739 OWN - NLM STAT- MEDLINE DCOM- 20070920 LR - 20070420 IS - 1386-6532 (Print) IS - 1386-6532 (Linking) VI - 39 IP - 1 DP - 2007 May TI - Direct detection of human herpesvirus 6 DNA in serum by the loop-mediated isothermal amplification method. PG - 22-6 AB - BACKGROUND: A more rapid and easier method is needed for monitoring human herpesvirus 6 (HHV-6) infections. The loop-mediated isothermal amplification method (LAMP) can detect viral DNA with high specificity, efficiency, and speed under isothermal conditions. LAMP requires only simple equipment that is available in hospital laboratories. OBJECTIVES: We evaluated LAMP as a means of detecting HHV-6 DNA directly from patients' sera. RESULTS: The sensitivity of the HHV-6 LAMP protocol without heat denaturation was 1000 copies/tube; with heat denaturation 10 copies/tube were detected. Three hundred serum samples from children with fever were analyzed. Using HHV-6 isolation as a definition of HHV-6 infection, the sensitivity, specificity, positive predictive value, and negative predictive value of the HHV-6 LAMP method without DNA extraction were 95.5%, 95.2%, 94.0%, and 96.4%, respectively. CONCLUSION: Direct detection of HHV-6 DNA in serum with a modified HHV-6 LAMP could be used for rapid diagnosis of exanthem subitum (ES). FAU - Ihira, Masaru AU - Ihira M AD - Department of Medical Information Technology, Fujita Health University College, Toyoake, Aichi, Japan. FAU - Akimoto, Shiho AU - Akimoto S FAU - Miyake, Fumi AU - Miyake F FAU - Fujita, Ayano AU - Fujita A FAU - Sugata, Ken AU - Sugata K FAU - Suga, Sadao AU - Suga S FAU - Ohashi, Masahiro AU - Ohashi M FAU - Nishimura, Naoko AU - Nishimura N FAU - Ozaki, Takao AU - Ozaki T FAU - Asano, Yoshizo AU - Asano Y FAU - Yoshikawa, Tetsushi AU - Yoshikawa T LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20070321 PL - Netherlands TA - J Clin Virol JT - Journal of clinical virology : the official publication of the Pan American Society for Clinical Virology JID - 9815671 RN - 0 (DNA Primers) RN - 0 (DNA, Viral) SB - IM MH - DNA Primers MH - DNA, Viral/*blood MH - Exanthema Subitum/blood/*virology MH - Female MH - Fever/blood/virology MH - Herpesvirus 6, Human/*genetics MH - Humans MH - Infant MH - Male MH - Nucleic Acid Amplification Techniques/*methods MH - Sensitivity and Specificity EDAT- 2007/03/23 09:00 MHDA- 2007/09/21 09:00 CRDT- 2007/03/23 09:00 PHST- 2006/08/29 00:00 [received] PHST- 2007/02/01 00:00 [revised] PHST- 2007/02/01 00:00 [accepted] PHST- 2007/03/23 09:00 [pubmed] PHST- 2007/09/21 09:00 [medline] PHST- 2007/03/23 09:00 [entrez] AID - S1386-6532(07)00066-2 [pii] AID - 10.1016/j.jcv.2007.02.001 [doi] PST - ppublish SO - J Clin Virol. 2007 May;39(1):22-6. doi: 10.1016/j.jcv.2007.02.001. Epub 2007 Mar 21.