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Hidden power of garden snails

Have you ever thought of how snails spend their lives crawling through dirty soil filled with different types of bacteria all day and still manage to outlive it unaffected? A couple researchers decided to look into the antibiotic resistance of garden snails. They are Sarah Pitt, Ph.D., principal lecturer in the School of Pharmacy and Biomolecular Science at the University of Brighton, and Alan Gunn, Ph.D., subject lead for biosciences in the School of Natural Sciences and Psychology at Liverpool John Moores University. Researchers collected garden snails and conducted studies on them. The results showed that they effectively keep a very tough bacterium P. aeruginosa at bay. "If we can make the proteins artificially in the lab, we can try and work out what they are doing to the bacterium. We think that it might be possible to incorporate the purified protein into a cream to treat deep burn wounds and possibly an aerosol to treat lung infections," says Pitt. The current findings open up doors for future therapeutic purposes and help use the proteins with healing potential as the new treatment option.

(Source: www.medicalnewstoday.com)

How do brains process touch?

Human brain works in mysterious ways in unfathomable levels. A few of brain’s such activities include phantom limb pain, which is experienced by a person whose limbs were amputated and tactile hallucinations which make people feel a pain instilled on them when there are no such external stimuli. When a person feels a touch on his left hand when he was originally touched on his left leg, scientists call it a phantom sensation. This reaction of brain has left scientists in utter puzzlement. Studies were conducted to know the reason behind this. "We show that phantom sensations depend on three characteristics. The most important is the identity of the limb — whether we're dealing with a hand or a foot. This is why a touch on one hand is often perceived on the other hand," explains lead author Stephanie Badde. The other two factors contributing are;

  • - the side of the body — a person might think they sense touch in their right hand when, in fact, the touch occurred on their right foot

  • - the normal anatomical position of the limb (right or left)

 

Scientists say that these findings could drive us to the finding of how phantom pain is perceived by brain.

(Source: www.medicalnewstoday.com)