JaLCDOI 10.18926/AMO/32819
フルテキストURL fulltext.pdf
著者 Okamoto, Osamu| Yamamoto, Yuji| Inagaki, Sachiyo| Yoshitome, Kei| ishikawa, Takaki| Imabayashi, Kiyomi| Miyaishi, Satoru| Ishizu, Hideo|
抄録 <p>Allele and genotype frequencies for 15 short tandem repeat (STR) polymorphisms--D3S1358, TH01, D21S11, D18S51, Penta E, D5S818, D13S317, D7S820, D16S539, CSF1PO, Penta D, vWA, D8S1179, TPOX and FGA--in a Japanese population were estimated. No deviations of the observed allele frequency from Hardy-Weinberg equilibrium expectations were found for any of the systems studied. Between 2 new pentanucleotide STR loci, Penta E and Penta D, for which there is only limited data regarding the allelic distribution in Japanese, the Penta E locus was found to be highly polymorphic and exhibited a tri- or tetra-modal distribution pattern having allelic peaks with 5, 11, 15 and 20 repeats. The distribution was significantly different from that of the other ethnic groups. Statistical parameters of forensic importance, the power of discrimination (PD), observed and expected heterozygosity values (H), polymorphism information content (PIC), power of discrimination (PD), matching probability (pM), power of exclusion (PE), and typical paternity index (PI), were calculated for the loci. These parameters indicated the usefulness of the loci in forensic personal identification and paternity testing among Japanese. The systems Penta E, FGA, D18S51 and D8S1179 were the most informative. This method was successfully applied to forensic personal identification and paternity testing among Japanese, thereby confirming its efficacy for forensic practice.</p>
キーワード population data DNA typing short tandem repests personal identification paternity testing
Amo Type Article
発行日 2003-04
出版物タイトル Acta Medica Okayama
57巻
2号
出版者 Okayama University Medical School
開始ページ 59
終了ページ 71
ISSN 0386-300X
NCID AA00508441
資料タイプ 学術雑誌論文
言語 English
論文のバージョン publisher
査読 有り
PubMed ID 12866745
Web of Science KeyUT 000182520400003
JaLCDOI 10.18926/AMO/32309
フルテキストURL fulltext.pdf
著者 Murakami, Hiroki| Ymamamoto, Yuji| Yoshitome, Kei| Ono, Toshiaki| Okamoto, Osamu| Shigeta, Yoshiaki| Doi, Yusuke| Miyaishi, Satoru| Ishizu, Hideo|
抄録 <p>In this study, sex determination using polymerase chain reaction (PCR) on tooth material was evaluated from the viewpoint of forensic medicine. The sensitivity of PCR for detection of the Y chromosome-specific alphoid repeat sequence and the X chromosome-specific alphoid repeat sequence was 0.5 pg of genomic DNA. Sex could be determined by PCR of DNA extracted from the pulp of 16 freshly extracted permanent teeth and dentine including the surface of the pulp cavity of 6 freshly extracted milk teeth. Sex could be determined using the pulp in all 20 teeth (10 male and 10 female) preserved at room temperature for 22 years. For the pulp of teeth stored in sea water, the sex could be determined in all 8 teeth immersed for 1 week and in 5 of 6 teeth immersed for 4 weeks. In the remaining 1 tooth, in which sex determination based on the pulp failed, the sex could be determined correctly when DNA extracted from the tooth hard tissue was examined. For teeth stored in soil, the sex could be determined accurately in all 8 teeth buried for 1 week, 7 of 8 teeth buried for 4 weeks, and in all 6 teeth buried for 8 weeks. When teeth were heated for 30 min, sex determination from the pulp was possible in all teeth heated to 100, 150, and 200 degrees C, and even in some teeth heated to 250 degrees C. When this method was applied to actual forensic cases, the sex of a mummified body estimated to have been discovered half a year to 1 year after death could be determined readily by examination of the dental pulp. In the skeletons of 2 bodies placed under water for approximately 1 year and approximately 11 years and 7 months, pulp tissues had been dissolved and lost, but sex determination was possible using DNA extracted from hard dental tissues. These results indicate that this method is useful in forensic practices for sex determination based on teeth samples.</p>
キーワード personal identification sex determination tooth deoxyribonucleic acid (DNA). polymerase chain reaction
Amo Type Article
発行日 2000-02
出版物タイトル Acta Medica Okayama
54巻
1号
出版者 Okayama University Medical School
開始ページ 21
終了ページ 32
ISSN 0386-300X
NCID AA00508441
資料タイプ 学術雑誌論文
言語 English
論文のバージョン publisher
査読 有り
PubMed ID 10709619
Web of Science KeyUT 000085526000004
JaLCDOI 10.18926/AMO/31305
フルテキストURL fulltext.pdf
著者 Inoue, Seiichi| Yamamoto, Yuji| Okamoto, Osamu| Murakami, Hiroki| Miyaishi, Satoru| Isizu, Hideo|
抄録 <p>A sensitive method of HLA-DRB1 typing was devised using a semi-nested polymerase chain reaction (PCR) followed by a restriction fragment length polymorphism (RFLP) analysis (semi-nested PCR-RFLP method). The first-round amplification (30 cycles) of the semi-nested PCR was performed using DRB generic primer pairs and the second round of PCRs (20 cycles) were performed using DRB1 group-specific primers. The products of the second round PCRs were digested with restriction endonucleases for the typing of HLA-DRB1 alleles. By this method, HLA-DRB1 typing was possible from 10 pg of genomic DNA extracted from lymphocytes and from 0.5 microliter of 1,000 times diluted blood without DNA extraction. HLA-DRB1 alleles could be typed from a 2-mm long bloodstained cotton thread prepared from 10 times diluted blood and from a 2-mm thread of whole blood bloodstains stored at room temperature for 2 years. From the mixture of blood of two individuals with different genotypes, DRB1 alleles of the minor component were detected down to 1/1,000 of the major component. This semi-nested PCR-RFLP method is useful for HLA-DRB1 typing from extremely small amounts of DNA and from mixed samples.</p>
キーワード polymorphism HLA-DRB1 polymerase chain reaction dsmi-nested PCR restricton fragment length polymotphism
Amo Type Article
発行日 1998-12
出版物タイトル Acta Medica Okayama
52巻
6号
出版者 Okayama University Medical School
開始ページ 289
終了ページ 296
ISSN 0386-300X
NCID AA00508441
資料タイプ 学術雑誌論文
言語 English
論文のバージョン publisher
査読 有り
PubMed ID 9876765
Web of Science KeyUT 000077707300002