News tagged with hair cells
Unusual protein helps regulate key cell communication pathway
Charged atoms, or ions, move through tiny pores, or channels, embedded in cell membranes, generating the electrical signals that allow cells to communicate with one another. In new research, scientists have ...
Apr 23, 2012 |
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Cellular automaton model predicts how hair follicle stem cells regenerate
Your hair -- or lack of hair -- is the result of a lifelong tug-of-war between activators that wake up, and inhibitors that calm, stem cells in every hair follicle on your body, according to Cheng-Ming Chuong, M.D., Ph.D., ...
Dec 07, 2011 |
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Herbicide may affect plants thought to be resistant
Purdue University researchers have discovered a fine-tuning mechanism involved in plant root growth that has them questioning whether a popular herbicide may have unintended consequences, causing some plants to need more ...
Nov 22, 2011 |
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How do green algae react to carbon nanotubes?
Nanoparticles such as carbon nanotubes (CNT), which are found in an ever-increasing number of products, are ending up more and more frequently in our surroundings. If and how they affect aquatic ecosystems ...
Nanotechnology / Nanomaterials
Nov 04, 2011 |
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Yale scientists find stem cells that tell hair it's time to grow
Yale researchers have discovered the source of signals that trigger hair growth, an insight that may lead to new treatments for baldness.
Sep 01, 2011 |
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Not just another brick in the (plant cell) wall
(PhysOrg.com) -- In a new study revealing key steps for controlling plant growth, researchers have shown how the assembly of components of the plant cell wall regulates growth of root hairs. Root hairs are ...
Jun 17, 2011 |
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The sweet growth of plant cells
An international collaboration team unravels the fundamental role that carbohydrates play in the root hairs of Arabidopsis thaliana and shows how cell growth is modulated in this species.
Jun 16, 2011 |
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It's not over when it's over: Storing sounds in the inner ear
Research shows that vibrations in the inner ear continue even after a sound has ended, perhaps serving as a kind of mechanical memory of recent sounds. In addition to contributing to the understanding of the complex process ...
Apr 05, 2011 |
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Will we hear the light? Surprising discovery that infrared can activate heart and ear cells
University of Utah scientists used invisible infrared light to make rat heart cells contract and toadfish inner-ear cells send signals to the brain. The discovery someday might improve cochlear implants for ...
Medicine & Health / Medical research
Mar 28, 2011 |
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Scientists probe the role of motor protein in hearing loss
From grinding heavy metal to soothing ocean waves, the sounds we hear are all perceptible thanks to the vibrations felt by tiny molecular motors in the hair cells of the inner ear. Researchers at the University of Pennsylvania ...
Medicine & Health / Medical research
Mar 06, 2011 |
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2 drugs protect hearing better than 1
Whether on a battlefield, in a factory or at a rock concert, noise-induced hearing loss is one of the most common hazards people face.
Feb 23, 2011 |
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Turning to nature for inspiration: Bio-inspired sensors hold promise
with applications ranging from medical devices to robotics to new consumer goods – Chang Liu looks to biology.
Feb 19, 2011 |
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Squid shown to be able to hear
(PhysOrg.com) -- Scientists in the US have solved the mystery about whether squid can hear and if so, how.
Feb 08, 2011 |
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Researchers reveal function of novel molecule that underlies human deafness
New research from the University of Sheffield has revealed that the molecular mechanism underlying deafness is caused by a mutation of a specific microRNA called miR-96. The discovery could provide the basis for treating ...
Medicine & Health / Medical research
Jan 21, 2011 |
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Coaxing new hair: Scientists work on perking up dormant follicles
When a man's hair stops growing back, it would be logical to assume his scalp has suffered a loss of stem cells, those versatile dynamos that have the ability to regenerate hair, blood, and other parts of the body.
Medicine & Health / Medical research
Jan 14, 2011 |
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Hair cell
Hair cells are the sensory receptors of both the auditory system and the vestibular system in all vertebrates. In mammals, the auditory hair cells are located within the organ of Corti on a thin basilar membrane in the cochlea of the inner ear. They derive their name from the tufts of stereocilia that protrude from the apical surface of the cell, a structure known as the hair bundle, into the scala media, a fluid-filled tube within the cochlea. Mammalian cochlear hair cells come in two anatomically and functionally distinct types: the outer and inner hair cells. Damage to these hair cells results in decreased hearing sensitivity, i.e. sensorineural hearing loss.
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