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Stories about: nerve cells


Excessive Numbers of Neurons Found in Autistic Brain

Larger-than-normal numbers of nerve cells in areas of the brain involved in social, communication and cognitive development have been proven to be common in children suffering from autism, and especially in boys. Investigators from the Autism Center of Excellence at the University of California in San Diego (UCSD...

12 November 2011
05:53 GMT

Understanding Motor Neurons with Optogenetics

Using a relatively new investigations methodology called optogenetics, investigators in Germany were recently able to shed more light on how certain types of neurons function. They were able to control the activity of specific nerve cells in the brain using nothing more than light. Optogenetics is a relatively new fi...

20 July 2011
10:40 GMT

Experts Gain More Insight into How Neurons Function

Neurons accomplish the daunting task of picking up and responding to relevant electrical signals that pass through them with more finesse and efficiency than scientists previously anticipated. The work provides a fundamental new insight into how nerve cells in the brain carry out their functions. These neurons ar...

9 July 2011
05:42 GMT

Neurons Obtained Directly from Human Skin Cells

Researchers at the Stanford University have just demonstrated that it's possible to convert adult human skin cells directly into working nerve cells called neurons. Furthermore, this can be done without the need to first turn them into induced pluripotent stem (iPS) cells.Stanford School of Medicine experts mana...

27 May 2011
07:56 GMT

Nerve Cells Could Change Brain Injury Therapies

After traumatic injuries, the brain recovers very slowly, and many experts have over the years debated whether newborn nerve cells play any role in the process. In a new study conducted on unsuspecting lab mice, it was determined that indeed these cells appear to play an important role in the process. The animal mode...

30 March 2011
10:05 GMT

Microscopic Cylinders Resemble Neurons

A group of investigators from the Netherlands and France managed recently to develop a new system featuring rotating microscopic cylinders, which exhibit properties similar to those of communicating neurons. The achievement could have important implications for the electronics industry.For the new investigation, rese...

20 December 2010
05:12 GMT

Methods into Madness: How Neurons Control Movement

It's no longer a secret to anyone that neurons control the physical movements of the human body. But the processes underlying this ability have remained a mystery to experts for many years. A new study throws more light on the issue.For a long time, researchers have observed that neurons that control motion tend...

9 November 2010
05:06 GMT

The Brain: Super-Sized Computer Going from Internet to Fiber Optics

A new study carried out by the Ecole Polytechnique Fédérale de Lausanne (EPFL) and the University of Lausanne (UNIL), in collaboration with Harvard Medical School, shows that the human brain evolves in a lifetime from a good network to a super advanced one.The research compares the brain of a child to e...

28 October 2010
02:53 GMT

Neural Circuitry for Fear Exposed in New Light

A team of experts is currently working on shedding new light on the way the amygdala responds to fear, producing the famous fight-or-flight response in humans.People involved in this line of research are basically studying ways of modifying the way people respond to fear, which may lead to the creation of soldiers th...

8 September 2010
10:01 GMT

How Neurons Resemble Snowflakes

In addition to being beautiful in their simplicity, snowflakes are also different from each other, even if through minute variations. The same holds true for neurons, and it would appear that this is one of the most important traits of the human brain.According to a team of investigators at the Carnegie Mellon Univer...

30 August 2010
02:29 GMT

Demands Dictate Neurons' Multitasking Abilities

Last year, it was demonstrated in monkeys that a single brain cell – called a neuron – can be in charge of storing a memory. While learning this was an achievement in and of itself, researchers wanted to push the envelope a bit further, and go deeper with their studies. In follow-up researches, it was rev...

10 June 2010
09:38 GMT

Turning Astroglia into Neurons Now Possible

Neurons, the famous nerve cells of the human brain, are the most widely-known variety of cells that exists in the cortex. However, they are not the only ones. An equally important role is being fulfilled by astroglia, which are the support cells on which neurons lie. According to a new investigation, it would appear ...

19 May 2010
14:01 GMT

Family of Light-Activated Ion Channels Found

A group of scientists has recently discovered one of the first naturally-occurring, light-activate ion channels in the human body. Finding these channels is extremely important for medicine, biosciences and biotechnology, as they could allow for the development of treatments for a wide array of conditions. Neuroscien...

7 April 2010
03:46 GMT

Bionic Eyes Are Around the Corner

A group of experts from the Tel Aviv University (TAU), led by Professor Yael Hanein from the university's School of Electrical Engineering, announced major progress in developing bionic eyes. The group has been investigating ways of merging man and machine for many years, and they say that the foundational resea...

23 March 2010
07:11 GMT

How Snakes' Infrared Perception Works

Biologists and naturalists have been wondering for a long time why precisely snakes are capable of discovering prey in the dark, and then attack it very precisely, seemingly without effort. Some experts have hypothesized that the trait is based on the creatures' ability to see some of the infrared wavelengths of...

15 March 2010
02:30 GMT

Restoring Plasticity to the Aged Brain

One of the most important properties of the human brain is called plasticity. It refers to the ability of the cortex to adapt to new stimuli all the time. While people are young, this ability is at work almost all of the time, breaking apart and creating new synapses and neural pathways, in an attempt to keep up with...

26 February 2010
16:01 GMT

Researchers Make Neurons from Skin Cells

In a finding that seems to suggest differentiated, adult cells are actually a lot more flexible than originally thought, researchers have recently been able to demonstrate a simple conversion method that turns skin cells called fibroblasts into fully functioning nerve cells. The process involved in this type of trans...

28 January 2010
06:36 GMT

The Root of Tasmanian Devils' Cancer Issues

In recent years, scientists have taken a deep interest in Tasmanian devils. More than 70 percent of the population living in the wild has perished on account of a strange disease, which was cataloged as a form of cancer. For quite some time, experts were in the dark as to where this infection came from, and what prec...

4 January 2010
05:20 GMT

Nerve-Cell Communication Mystery Unraveled

Scientists at the University of Copenhagen have recently been able to gain new insight into the mystery that surrounds the methods nerve cells use to communicate with each other. This type of interaction between neurons and axons is crucial for the human body. Electrical signals sent by the brain travel along these n...

23 December 2009
04:55 GMT

Growing Implants by Stretching Living Nerves

Scientists at the University of Pennsylvania are currently working on a new approach to producing resilient transplants. The method involves mechanically stretching living nerve cells inside a special, custom-built machine. The goal of this investigation is to produce new treatments for conditions that are currently ...

22 December 2009
07:05 GMT

How Long-Term Memories Form

In a new study conducted on unsuspecting mice, Swedish researchers at the medical university Karolinska Institutet managed to accomplish a major breakthrough in the field of neuroscience, when they identified a mechanism related to the formation of long-term memories. Their find essentially controls the brain's ...

10 November 2009
17:31 GMT

How Bioluminescent Sharks Control Their Glow

Until only recently, experts weren't exactly sure what allowed lantern sharks to turn their glow on and off, and, when asked, they would just say that the animals themselves were in control of the ability. However, a new scientific study seems to demonstrate that the assertion is not entirely true. It may be tha...

9 November 2009
05:58 GMT

Scientists Create Nanowire Structures that Operate as Nerve Cells

Experts at the Lawrence Livermore National Laboratory (LLNL) have recently managed to create a new class of artificial cells, which behave similarly to nerve cells inside the human brain, and which could in the future be used to create more accurate and efficient interfaces between the cortex of paralyzed patients or...

11 August 2009
03:38 GMT

Advanced Nerve Cells Created in the Lab

Despite decades of research, scientists have not yet been able to come up with efficient drugs to treat conditions of the neurons associated with the loss of myelin insulation, such as multiple sclerosis and diabetic neuropathy. One of the main difficulties in this line of research is the availability of test materia...

24 June 2009
06:54 GMT


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