Defects of the otoconial membranes in normal Guinea pigs

Lars Göran Johnsson, Charles G. Wright, Robert E. Preston, Pamela J. Henry

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

Otoconial membranes from a large number of normal albino and pigmented guinea pigs were examined by light microscopy. In more than 20% of the animals, microdissection revealed that the crystalline layer of the otoconial membrane was incomplete, leaving large areas of the underlying gelatinous layer uncovered by crystals. These defects were bilateral, more or less symmetrical, and invariably more extensive in the saccule than in the utricle. In two animals, huge single conglomerates of crystals were found on both the saccular and utricular maculae. None of the animals displayed abnormal behavior or posture and no obvious cause for the otoconial defects was found. The presence of a hereditary congenital condition is postulated. The high incidence of otoconial defects in guinea pigs makes them poorly suited for most investigations of experimentally induced pathology. Therefore, previous reports of otoconial pathology in guinea pigs should be viewed in the light of these findings.

Original languageEnglish (US)
Pages (from-to)93-104
Number of pages12
JournalActa Oto-Laryngologica
Volume89
Issue number1-2
DOIs
StatePublished - 1980

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Guinea Pigs
Membranes
Pathology
Saccule and Utricle
Microdissection
Posture
Microscopy
Light
Incidence

ASJC Scopus subject areas

  • Otorhinolaryngology

Cite this

Johnsson, L. G., Wright, C. G., Preston, R. E., & Henry, P. J. (1980). Defects of the otoconial membranes in normal Guinea pigs. Acta Oto-Laryngologica, 89(1-2), 93-104. https://doi.org/10.3109/00016488009127114

Defects of the otoconial membranes in normal Guinea pigs. / Johnsson, Lars Göran; Wright, Charles G.; Preston, Robert E.; Henry, Pamela J.

In: Acta Oto-Laryngologica, Vol. 89, No. 1-2, 1980, p. 93-104.

Research output: Contribution to journalArticle

Johnsson, LG, Wright, CG, Preston, RE & Henry, PJ 1980, 'Defects of the otoconial membranes in normal Guinea pigs', Acta Oto-Laryngologica, vol. 89, no. 1-2, pp. 93-104. https://doi.org/10.3109/00016488009127114
Johnsson, Lars Göran ; Wright, Charles G. ; Preston, Robert E. ; Henry, Pamela J. / Defects of the otoconial membranes in normal Guinea pigs. In: Acta Oto-Laryngologica. 1980 ; Vol. 89, No. 1-2. pp. 93-104.
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