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
收藏
页码：2981 / 2983
页数：3
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