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Titolo:
ACTINOBACILLUS-ACTINOMYCETEMCOMITANS AND PORPHYROMONAS-GINGIVALIS IN YOUNG CHINESE ADULTS
Autore:
MOMBELLI A; GMUR R; FREY J; MEYER J; ZEE KY; TAM JOW; LO ECM; DIRIENZO J; LANG NP; CORBET EF;
Indirizzi:
UNIV BERN,SCH DENT MED,FREIBURGSTR 7 CH-3010 BERN SWITZERLAND UNIV ZURICH CH-8006 ZURICH SWITZERLAND UNIV BASEL BASEL SWITZERLAND UNIV PENN PHILADELPHIA PA 19104 UNIV HONG KONG HONG KONG PEOPLES R CHINA
Titolo Testata:
Oral microbiology and immunology
fascicolo: 4, volume: 13, anno: 1998,
pagine: 231 - 237
SICI:
0902-0055(1998)13:4<231:AAPIY>2.0.ZU;2-A
Fonte:
ISI
Lingua:
ENG
Soggetto:
LOCALIZED JUVENILE PERIODONTITIS; POLYMERASE CHAIN-REACTION; SUBGINGIVAL PLAQUE; TEMPERATE BACTERIOPHAGES; RAPID IDENTIFICATION; LEUKOTOXIN GENE; SEROTYPE-E; DISEASE; BACTEROIDES; STRAINS;
Keywords:
ACTINOBACILLUS ACTINOMYCETEMCOMITANS; PORPHYROMONAS GINGIVALIS; CHINESE;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
51
Recensione:
Indirizzi per estratti:
Citazione:
A. Mombelli et al., "ACTINOBACILLUS-ACTINOMYCETEMCOMITANS AND PORPHYROMONAS-GINGIVALIS IN YOUNG CHINESE ADULTS", Oral microbiology and immunology, 13(4), 1998, pp. 231-237

Abstract

The aim of this study was to determine the presence or absence of Actinobacillus actinomycetemcomitans and Porphyromonas gingivalis in young Chinese adults and to examine the A. actinomycetemcomitans is elatesfrom positive subjects with regard to the serotype distribution, presence of the leukotoxin gene lktA and the promoter for the leukotoxin operon as well as the incidence of phage Aa phi 23. Sixty subjects, working in a knitting factory in the Province of Guangzhou, People's Republic of China, were investigated. Subgingival microbial samples were taken from both upper first molars. They were cultured both anaerobically and in 5% CO2. P. gingivalis was found in 33 subjects. On average, it constituted 7% of the total anaerobic cultivable counts. A. actinomycetemcomitans was detected in 37 subjects of which seven yielded counts >10(5). Twenty-one subjects were positive for both organisms. A. actinomycetemcomitans serotype a was found in 9 subjects, serotype c wasfound in 23 and serotype e in 5. A. actinomycetemcomitans sero-types b and d were not detected in any subjects. Presence of the leukotoxin gene lktA was demonstrated for all A. actinomycetemcomitans isolates; however, none of the A. actinomycetemcomitans strains from the presentstudy had a deletion in the promoter region of the leukotoxin operon. The results of this investigation show a high frequency of the putative periodontal pathogens P. gingivalis and A. actinomycetemcomitans and corroborate the concept that there is variation in virulence and pathogenic potential among isolates from different subjects.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 26/11/20 alle ore 11:08:04