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Literature DB >> 7458770

Endocochlear potential and potassium concentration in endolymph and perilymph of the chinchilla.

Abstract

Guinea pigs and chinchillas were studied for EP and potassium concentrations in scala media and scala tympani using potassium-sensitive microelectrodes. Response of EP to 3 min anoxia was strikingly different in these two species. On the other hand, the resting values for EP and potassium concentrations in endolymph and perilymph were not significantly different. These findings suggest that the different response to anoxia in these two species is due to differences in permeability of the cochlear partitions to the ions.

Entities: Chemical Disease Species

Mesh：

Substances：
Potassium

Year: 1980 PMID： 7458770 DOI： 10.1007/bf00454238

Source DB: PubMed Journal: Arch Otorhinolaryngol ISSN： 0302-9530

24 in total

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Journal: Q Rev Biophys Date: 1972-02 Impact factor: 5.318

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Authors: T Nakashima; J E Leonard; J B Snow
Journal: Arch Otolaryngol Date: 1973-06

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Authors: D G Davies
Journal: J Laryngol Otol Date: 1968-04 Impact factor: 1.469

6. Effects of noise on cochlear potentials and endolymph potassium concentration recorded with potassium-selective electrodes.

Authors: A N Salt; T Konishi
Journal: Hear Res Date: 1979-12 Impact factor: 3.208

7. The nature of the negative endocochlear potentials produced by anoxia and ethacrynic acid in the rat and guinea-pig.

Authors: S K Bosher
Journal: J Physiol Date: 1979-08 Impact factor: 5.182

8. Studies of ion distribution in the inner ear: scanning electron microscopy and x-ray microanalysis of freeze-dried cochlear specimens.

Authors: A F Ryan; M G Wickham; R C Bone
Journal: Hear Res Date: 1980-01 Impact factor: 3.208

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Authors: K Rodgers; J T Chou
Journal: J Laryngol Otol Date: 1966-08 Impact factor: 1.469

10. Vascular perfusion of the cochlea: effect of potassium-free and rubidium-substituted media.

Authors: J Wada; J Kambayashi; D C Marcus; R Thalmann
Journal: Arch Otorhinolaryngol Date: 1979

6 in total

1. Comparative acute ototoxicity of loop diuretic compounds.

Authors: L P Rybak; C Whitworth; V Scott
Journal: Eur Arch Otorhinolaryngol Date: 1991 Impact factor: 2.503

2. In situ real-time sequential potentiometric determinations of potassium concentrations from three cochlear regions in noise-exposed rats.

Authors: Y L Ma; K J Gerhardt; L P Rybak; L M Curtis; K E Rarey
Journal: Eur Arch Otorhinolaryngol Date: 1996 Impact factor: 2.503