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Titolo:
EXPRESSION OF FIMBRIAE AND HOST RESPONSE IN BRANHAMELLA-CATARRHALIS RESPIRATORY-INFECTIONS
Autore:
AHMED K; MASAKI H; DAI TC; ICHINOSE A; UTSUNOMIYA Y; TAO M; NAGATAKE T; MATSUMOTO K;
Indirizzi:
NAGASAKI UNIV,INST TROP MED,DEPT INTERNAL MED,12-4 SAKAMOTO 1-CHOME NAGASAKI 852 JAPAN NAGASAKI UNIV,INST TROP MED,ELECTRON MICROSCOPY LAB NAGASAKI 852 JAPAN
Titolo Testata:
Microbiology and immunology
fascicolo: 10, volume: 38, anno: 1994,
pagine: 767 - 771
SICI:
0385-5600(1994)38:10<767:EOFAHR>2.0.ZU;2-9
Fonte:
ISI
Lingua:
ENG
Soggetto:
ADHERENCE; CAPSULE; CELLS; BLEBS;
Keywords:
BRANHAMELLA CATARRHALIS; SPUTUM; FIMBRIAE;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
13
Recensione:
Indirizzi per estratti:
Citazione:
K. Ahmed et al., "EXPRESSION OF FIMBRIAE AND HOST RESPONSE IN BRANHAMELLA-CATARRHALIS RESPIRATORY-INFECTIONS", Microbiology and immunology, 38(10), 1994, pp. 767-771

Abstract

Sputum during the acute exacerbation of chronic respiratory diseases were observed under the electron microscope, to determine the in vivo expression of surface structures of Branhamella catarrhalis (B. catarrhalis), the polymorphonuclear neutrophil (PMN) response to B. catarrhalis infections, and the composition of sputum. It was found that during infection fimbriae are expressed in B. catarrhalis. However, there were sparsely to densely fimbriated bacteria in each sputum sample. Thelength of the fimbriae were from 50 to 76 nm. In the sparsely fimbriated B. catarrhalis, external to the cell wall, a thin, granular, electron-dense layer was observed. Due to the presence of fimbriae, this layer was not seen in densely fimbriated B. catarrhalis. Blebs were alsofound in B. catarrhalis. PMNs were found to phagocytose both B. catarrhalis and debris. Evidence was found that debris were formed mainly by the destruction of PMNs. Bacteria as well as debris were phagocytosed by PMNs.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 11/07/20 alle ore 14:31:30