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  • Brain wi-fi' reverses leg paralysis in primate first

     

     

    An implant that beams instructions out of the brain has been used to restore movement in paralysed primates for the first time, say scientists.

    Rhesus monkeys were paralysed in one leg due to a damaged spinal cord.

    The team at the Swiss Federal Institute of Technology bypassed the injury by sending the instructions straight from the brain to the nerves controlling leg movement.

    Experts said the technology could be ready for human trials within a decade.

    Dr Andrew Jackson talks about the primate brain chip

    Spinal-cord injuries block the flow of electrical signals from the brain to the rest of the body resulting in paralysis.

    It is a wound that rarely heals, but one potential solution is to use technology to bypass the injury.

    In the study, a chip was implanted into the part of the monkeys' brain that controls movement.

    Its job was to read the spikes of electrical activity that are the instructions for moving the legs and send them to a nearby computer.

    It deciphered the messages and sent instructions to an implant in the monkey's spine to electrically stimulate the appropriate nerves.

    The process all takes place in real time.

    The results, published in the journal Nature, showed the monkeys regained some control of their paralysed leg within six days and could walk in a straight line on a treadmill.

    Dr Gregoire Courtine, one of the researchers, said: "This is the first time that a neurotechnology has restored locomotion in primates."

    He told the BBC News website: "The movement was close to normal for the basic walking pattern, but so far we have not been able to test the ability to steer."

    The technology used to stimulate the spinal cord is the same as that used in deep brain stimulation to treat Parkinson's disease, so it would not be a technological leap to doing the same tests in patients.

    "But the way we walk is different to primates, we are bipedal and this requires more sophisticated ways to stimulate the muscle," said Dr Courtine.

    Jocelyne Bloch, a neurosurgeon from the Lausanne University Hospital, said: "The link between decoding of the brain and the stimulation of the spinal cord is completely new.

    "For the first time, I can image a completely paralysed patient being able to move their legs through this brain-spine interface."

    Using technology to overcome paralysis is a rapidly developing field:

     

    The brain chip with a lab model of a monkey brain

    However, he said, rhesus monkeys used all four limbs to move and only one leg had been paralysed, so it would be a greater challenge to restore the movement of both legs in people.

    "Useful locomotion also requires control of balance, steering and obstacle avoidance, which were not addressed," he added.

    The other approach to treating paralysis involves transplanting cells from the nasal cavity into the spinal cord to try to biologically repair the injury.

    Following this treatment, Darek Fidyka, who was paralysed from the chest down in a knife attack in 2010, can now walk using a frame.

    @BBC.com

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  • The Recipe Renews the Knees and Joints that Doctors Are Amazed!

    The Recipe Renews the Knees and Joints that Doctors Are Amazed!

    Experts claim that the improper body posture is the major cause of problems and pain in the joints, legs, and back. Such issues may cause even more complications, so they need to be treated on time.

    This natural remedy restores the proper function of knees and joints and enhances the structure of bones and ameliorates their consistency.

    This is how to prepare this gelatin treatment:

    Ingredients:

    • 3 tablespoons raisins
    • 2 tablespoons of unflavoured gelatin (40 grams)
    • 8 teaspoons flaxseeds
    • 4 tablespoons sesame seeds
    • 40g pumpkin seeds
    • 200g honey 

    In a larger bowl, mix the ingredients listed above, and stir well until you get a homogeneous mixture. Then, transfer the remedy in a glass jar.

    Use:

    You should use this remedy daily. Take a teaspoon twice a day, before your breakfast and lunch.

    This treatment will enhance the elasticity of the tendons and ligaments, strengthen the bones and joints, and will additionally stimulate the metabolism.

    @betinews.com

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