PMID- 12913251 OWN - NLM STAT- MEDLINE DCOM- 20040407 LR - 20220408 IS - 0918-6158 (Print) IS - 0918-6158 (Linking) VI - 26 IP - 8 DP - 2003 Aug TI - Virus concentration using sulfonated magnetic beads to improve sensitivity in nucleic acid amplification tests. PG - 1065-9 AB - To enhance the sensitivity of virus detection by polymerase chain reaction (PCR) and reverse-transcriptional (RT)-PCR, we developed a novel virus-concentration method using sulfonated (SO-) magnetic beads in the presence of divalent cations. In the presence of either Zn(2+) or Cu(2+) ions, we showed that SO-magnetic beads were able to concentrate non-enveloped model viruses, such as porcine parvovirus (PPV) and poliovirus, which were not concentrated by polyethyleneimine (PEI)-magnetic beads.(1)) Using the SO-magnetic beads, the sensitivity of virus genome detection by PCR or RT-PCR can be enhanced. Therefore, an efficient virus concentration method using either SO-magnetic beads or PEI-magnetic beads enhances the sensitivity of virus detection by PCR or RT-PCR. FAU - Iwata, Akiko AU - Iwata A AD - The National Institute of Health Sciences, Tokyo, Japan. FAU - Satoh, Koei AU - Satoh K FAU - Murata, Mitsuhiro AU - Murata M FAU - Hikata, Mikio AU - Hikata M FAU - Hayakawa, Takao AU - Hayakawa T FAU - Yamaguchi, Teruhide AU - Yamaguchi T LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - Japan TA - Biol Pharm Bull JT - Biological & pharmaceutical bulletin JID - 9311984 RN - 0 (Sulfonic Acids) SB - IM MH - Animals MH - Chlorocebus aethiops MH - Magnetics MH - *Microspheres MH - Nucleic Acid Amplification Techniques/*methods MH - Sulfonic Acids/*analysis MH - Swine MH - Vero Cells MH - Viruses/genetics/*isolation & purification EDAT- 2003/08/13 05:00 MHDA- 2004/04/08 05:00 CRDT- 2003/08/13 05:00 PHST- 2003/08/13 05:00 [pubmed] PHST- 2004/04/08 05:00 [medline] PHST- 2003/08/13 05:00 [entrez] AID - 10.1248/bpb.26.1065 [doi] PST - ppublish SO - Biol Pharm Bull. 2003 Aug;26(8):1065-9. doi: 10.1248/bpb.26.1065.