Archives of oto-rhino-laryngology

, Volume 228, Issue 3, pp 187–193 | Cite as

Species differences in inner ear fluids

  • Kazuo Makimoto
  • Teiro Takeda
  • Herbert Silverstein


Inner ear fluids of guinea pigs and cats were analyzed for sodium, potassium, chloride, glucose, and total protein to determine species differences in chemical compositions. In the scala vestibuli perilymph and scala tympani perilymph, sodium, potassium, and choride levels in the guinea pig were lower than in the cat. The protein levels in the scala vestibuli perilymph and scala tympani perilymph of the guinea pig were lower than those of the cat. The glucose levels in the guinea pig were higher in the scala vestibuli perilymph and scala tympani perilymph, as compared to findings in the cat. Regarding the utricular endolymph, there were significant differences between guinea pigs and cats in sodium and potassium concentrations; the concentration in the former being higher in sodium and lower in potassium. These findings are pertinent for the phylogenetic studies on inner ear fluid biochemistry.

Key words

Species difference Body fluids chemistry Inner ear fluids 

Biochemische Unterschiede der Innenohrflüssigkeiten bei verschiedenen Tierarten


Die Innenohrflüssigkeiten von Meerschweinchen und Katzen wurden auf den Gehalt von Na, K, Chlorverbindungen, Glukose und Gesamtprotein untersucht, um artspezifische Unterschiede festzustellen. In der Perilymphe von Scala tympani und Scala vestibuli sind Na, K, Chloride und Gesamtprotein beim Meerschweinchen geringer als bei der Katze. Dagegen zeigt die Perilymphe des Meerschweinchens einen höheren Glukosegehalt als die der Katze. Die Endolymphe des Utriculus enthält beim Meerschweinchen mehr Na und weniger K als bei der Katze. Die Resultate sind wichtig für phylogenetische Untersuchungen der Biochemie der Innenohrflüssigkeiten.


Unterschiede bei Tierarten Chemie der Körperflüssigkeiten Innenohrflüssigkeiten 


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Copyright information

© Springer-Verlag 1980

Authors and Affiliations

  • Kazuo Makimoto
    • 1
  • Teiro Takeda
    • 1
  • Herbert Silverstein
    • 2
  1. 1.Dept. of Otolaryngology, School of MedicineKyoto UniversityKyotoJapan
  2. 2.Sarasota Memorial HospitalSarasotaUSA

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