Fish inner ear otoliths stop calcium incorporation after vestibular nerve transection

被引：29

作者：

Anken, RH ^{[1
]}

Edelmann, E ^{[1
]}

Rahmann, H ^{[1
]}

机构：

[1] Univ Stuttgart Hohenheim, Inst Zool, D-70593 Stuttgart, Germany

来源：

NEUROREPORT | 2000年 / 11卷 / 13期

关键词：

fish; nerve deafferentiation; otolith growth; vestibular system;

D O I：

10.1097/00001756-200009110-00031

中图分类号：

Q189 [神经科学];

学科分类号：

071006 ;

摘要：

Previous investigations revealed that the growth of fish inner ear otoliths (otolith size and calcium incorporation) depends on the amplitude and the direction of gravity, suggesting the existence of a (negative) feedback mechanism. In a search for the regulating unit, the vestibular nerve was unilaterally transected in neonatal swordtail fish (Xiphophorus helleri) which were subsequently incubated in the calcium-tracer alizarin-complexone. Calcium incorporation and thus otolith growth ceased on the operated head sides, indicating that the brain is significantly involved in regulating otolith growth. NeuroReport 11:2981-2983 (C) 2000 Lippincott Williams & Wilkins.

引用

页码：2981 / 2983

页数：3

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