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Literature DB >> 19186151

Distribution of frequencies of spontaneous oscillations in hair cells of the bullfrog sacculus.

D Ramunno-Johnson¹, C E Strimbu, L Fredrickson, K Arisaka, D Bozovic.

Abstract

Under in vitro conditions, free-standing hair bundles of the bullfrog (Rana catesbeiana) sacculus have exhibited spontaneous oscillations. We used a high-speed complementary metal oxide semiconductor camera to track the active movements of multiple hair cells in a single field of view. Our techniques enabled us to probe for correlations between pairs of cells, and to acquire records on over 100 actively oscillating bundles per epithelium. We measured the statistical distribution of oscillation periods of cells from different areas within the sacculus, and on different epithelia. Spontaneous oscillations exhibited a peak period of 33 ms (+29 ms, -14 ms) and uniform spatial distribution across the sacculus.

Entities: Chemical Species

Mesh：

Year: 2009 PMID： 19186151 PMCID： PMC2716672 DOI： 10.1016/j.bpj.2008.09.060

Source DB: PubMed Journal: Biophys J ISSN： 0006-3495 Impact factor: 4.033

85 in total

1. Gating energies and forces of the mammalian hair cell transducer channel and related hair bundle mechanics.

Authors: S M van Netten; C J Kros
Journal: Proc Biol Sci Date: 2000-09-22 Impact factor: 5.349

2. Two mechanisms for transducer adaptation in vertebrate hair cells.

Authors: J R Holt; D P Corey
Journal: Proc Natl Acad Sci U S A Date: 2000-10-24 Impact factor: 11.205

3. Comparison of a hair bundle's spontaneous oscillations with its response to mechanical stimulation reveals the underlying active process.

Authors: P Martin; A J Hudspeth; F Jülicher
Journal: Proc Natl Acad Sci U S A Date: 2001-11-27 Impact factor: 11.205

Distribution of frequencies of spontaneous oscillations in hair cells of the bullfrog sacculus.

1. Gating energies and forces of the mammalian hair cell transducer channel and related hair bundle mechanics.

2. Two mechanisms for transducer adaptation in vertebrate hair cells.

3. Comparison of a hair bundle's spontaneous oscillations with its response to mechanical stimulation reveals the underlying active process.

4. Negative hair-bundle stiffness betrays a mechanism for mechanical amplification by the hair cell.

5. Actin cores of hair-cell stereocilia support myosin motility.

6. Active traveling wave in the cochlea.

Review 7. Have we found the tip link, transduction channel, and gating spring of the hair cell?

8. Rapid, active hair bundle movements in hair cells from the bullfrog's sacculus.

9. Tuning in the bullfrog ear.

10. ATPase activity of myosin in hair bundles of the bullfrog's sacculus.

1. Magnetic actuation of hair cells.

2. Coupling a sensory hair-cell bundle to cyber clones enhances nonlinear amplification.

3. Enhanced signal-to-noise ratios in frog hearing can be achieved through amplitude death.

4. Friction from Transduction Channels' Gating Affects Spontaneous Hair-Bundle Oscillations.

5. Multiple-timescale dynamics underlying spontaneous oscillations of saccular hair bundles.

6. Low frequency entrainment of oscillatory bursts in hair cells.

7. Phase slips in oscillatory hair bundles.

8. Hair Bundle Stimulation Mode Modifies Manifestations of Mechanotransduction Adaptation.

9. Mode-locking dynamics of hair cells of the inner ear.

10. Spikes and membrane potential oscillations in hair cells generate periodic afferent activity in the frog sacculus.