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Titolo:
Time-dependent response of vestibular hair cells of guinea pigs following high-dose applications of streptomycin
Autore:
Nakagawa, T; Yamane, H; Takayama, M; Sunami, K; Nakai, Y;
Indirizzi:
Yodogawa33,ristian Hosp, Dept Otorhinolaryngol, Higashiyodogawa Ku, Osaka 5 Yodogawa Christian Hosp Osaka Japan 533 gol, Higashiyodogawa Ku, Osaka 5 Osaka City Univ, Sch Med, Dept Otorhinolaryngol, Osaka, Japan Osaka City Univ Osaka Japan ch Med, Dept Otorhinolaryngol, Osaka, Japan
Titolo Testata:
ACTA OTO-LARYNGOLOGICA
, , anno: 1998, supplemento:, 538
pagine: 32 - 35
SICI:
0001-6489(1998):<32:TROVHC>2.0.ZU;2-N
Fonte:
ISI
Lingua:
ENG
Soggetto:
NEURONAL DEATH; APOPTOSIS; NECROSIS;
Keywords:
aminoglycoside; ampullar cristae; apoptosis; time-dependency; hair cell degeneration;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Life Sciences
Citazioni:
10
Recensione:
Indirizzi per estratti:
Indirizzo: Nakagawa, T YodogawaAwaji,tian Hosp, Dept Otorhinolaryngol, Higashiyodogawa Ku, 2-9-26 Yodogawa Christian Hosp 2-9-26 Awaji Osaka Japan 533 , 2-9-26
Citazione:
T. Nakagawa et al., "Time-dependent response of vestibular hair cells of guinea pigs following high-dose applications of streptomycin", ACT OTO-LAR, 1998, pp. 32-35

Abstract

Apoptosis has been reported to occur in vestibular hair cells following aminoglycoside treatment and is suggested to play a predominant role in deletion of affected hair cells. However, the type of cell death occurring during an acute phase of vestibular damage following high-dose application of streptomycin has not yet been determined. Hence, in this study we examined the cell death mode of vestibular hair cells during the acute phase. The numbers of hair cell nuclei stained by the terminal deoxynucleotidyl transferase-mediated deoxyuridine triphosphate nick end labelling (TUNEL) method and residual hair cells were quantitatively analysed. Hoechst nuclear staining was used for analysis of the nuclear morphology of affected hair cells. TUNEL staining of hair cell nuclei and lost hair cells began to appear 6 h after streptomycin treatment and increased with more exposure time. Apoptotic nuclear features could also be found from 6 h after streptomycin treatment. These findings support the thesis that apoptosis is a predominant cell death mode in degeneration of vestibular hair cells due to streptomycin ototoxicity.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 02/12/20 alle ore 08:02:06