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Latest Axon Stories

2012-05-10 22:27:49

Max Planck researchers found over 2500 mRNA along dendrites and axons How do we build a memory in the brain? It is well known that for animals (and humans) new proteins are needed to establish long-term memories. During learning information is stored at the synapses, the junctions connecting nerve cells. Synapses also require new proteins in order to show changes in their strength (synaptic plasticity). Historically, scientists have focused on the cell body as the place where the required...

2012-05-10 14:00:27

Glial cells pass on metabolites to neurons Around 100 billion neurons in the human brain enable us to think, feel and act. They transmit electrical impulses to remote parts of the brain and body via long nerve fibers known as axons. This communication requires enormous amounts of energy, which the neurons are thought to generate from sugar. Axons are closely associated with glial cells which, on the one hand, surround them with an electrically insulating myelin sheath and, on the other...

2012-04-02 10:04:42

A new animal model of nerve injury has brought to light a critical role of an enzyme called Nmnat in nerve fiber maintenance and neuroprotection. Understanding biological pathways involved in maintaining healthy nerves and clearing away damaged ones may offer scientists targets for drugs to mitigate neurodegenerative diseases such as Huntington's and Parkinson's, as well as aid in situations of acute nerve damage, such as spinal cord injury. University of Pennsylvanian biologists developed...

2012-03-01 02:01:21

Promising avenue of neurodegenerative disease research may be a dead end In science, refuting a hypothesis can be as significant as proving one, all the more so in research aimed at elucidating how diseases proceed with a view toward preventing, treating, or curing them. Such a discovery can save scientists from spending precious years of effort exploring a dead end. In a study published in the Proceedings of the National Academy of Sciences, Munich-based researchers refute a widely...

2012-02-21 21:10:26

MDC researchers identify new function of a well-known gene A gene known to control lens development in mice and humans is also crucial for the development of neurons responsible for mechanosensory function, as neurobiologists of the Max Delbrück Center for Molecular Medicine (MDC) Berlin-Buch have now discovered. They found that in mice in which they had removed the c-Maf gene in the nerve cells, touch sensation is impaired. This similarly applies to human carriers of a...

2012-02-21 06:06:12

(Ivanhoe Newswire) -- Recent research has shown that Alzheimer's drugs, which are in clinical trials still, have adverse side effects. The drugs are designed to prevent BACE1, the enzyme Robert Vassar originally discovered that promotes the development of clumps of plaque associated with Alzheimer's.  BACE1 cuts up and releases proteins that form the plaque, making those who developed the drug believe that by blocking the enzyme the development of Alzheimer's disease might slow down....

2012-02-20 12:56:23

Drugs may act like bad electrician, messing up wiring in brain and nervous system Alzheimer's disease drugs now being tested in clinical trials may have potentially adverse side effects, according to new Northwestern Medicine research. A study with mice suggests the drugs could act like a bad electrician, causing neurons to be miswired and interfering with their ability to send messages to the brain. The findings, from the scientist whose original research led to the drug development,...

2012-02-13 11:09:37

Discovery provides clues to development of neurological diseases and cancer Researchers at the Salk Institute have discovered a startling feature of early brain development that helps to explain how complex neuron wiring patterns are programmed using just a handful of critical genes. The findings, published February 3 in Cell, may help scientists develop new therapies for neurological disorders, such as amyotrophic lateral sclerosis (ALS), and provide insight into certain cancers. The...

2012-02-09 00:51:31

A new study identifies specific cell-stress signaling pathways that link injury of the optic nerve with irreversible vision loss. The research, published by Cell Press in the February 9 issue of the journal Neuron, may lead to new strategies that will help to protect vulnerable neurons in the retina after optic nerve damage and diseases. Retinal ganglion cells (RGCs) send visual information from the retina to the brain through long processes called axons. The axons of the RGCs are bundled...

2012-02-03 19:00:59

Team apply new procedure to rapidly induce nerve regeneration in mammals American scientists believe a new procedure to repair severed nerves could result in patients recovering in days or weeks, rather than months or years. The team used a cellular mechanism similar to that used by many invertebrates to repair damage to nerve axons. Their results are published today in the Journal of Neuroscience Research. "We have developed a procedure which can repair severed nerves within minutes so...


Word of the Day
tessitura
  • The prevailing range of a vocal or instrumental part, within which most of the tones lie.
This word is Italian in origin and comes from the Latin 'textura,' web, structure.