Nanotech technique could revolutionise neurological treatments.
Light could replace invasive techniques to measure brain temperature– eliminating the need to place a thermometer in the brain when treating a range of neurological disorders.
Researchers from Victoria’ Swinburne University have teamed up with Universidad Autónoma de Madrid in Spain and Stanford University in the US to develop a technique for measuring sub-degree brain temperature changes using near-infrared light.
With the help of a revolutionary robot, Professor David Adams and Associate Professor Mirella Dottori are studying neurons, testing drug candidates for chronic pain, and working towards precise, personalised neurological treatment.
David has been studying the neurology of chronic pain, while Mirella is a neural stem cell expert. Based at the University of Wollongong, their collaboration focusses on cells called dorsal root ganglia sensory neurons. These cells sense pressure, temperature, position, touch and pain, and the duo believe they could hold the key to many neurological disorders including chronic pain.
“Many diseases and disorders are caused by altered firing of signals along sensory nerves. Growing human sensory neurons [from stem cells] means we can study their development and function in both health and disease,” says Mirella. Continue reading Modelling brain circuitry→
Non-invasive brain stimulation using an applied magnetic field can strengthen brain connections that weaken as we age.
Perth researchers hope to use this technique to improve the quality of life and reduce the risk of falls and injuries in older people.
Past the age of about 60, there’s a weakening of the structural connections between the three different areas of the brain that control our decision-making processes, our ‘planning’ centres, and our fine-motor control.
It’s the connections between those areas that ultimately allow us to successfully interact with our environment, for example adjusting our foot placement when we step on uneven paving.
Professor Perry Bartlett is putting people with dementia on treadmills.
He has already reversed dementia and recovered spatial memories in mice through exercise. And in 2016 he and colleagues at The University of Queensland will begin clinical trials to see if exercise will have the same impact in people with dementia. Then he’ll look at depression.
Underpinning these projects is the idea that the brain is constantly changing; and that learning, memory, mood, and many other brain functions are in part regulated by the production of new neurons.
“Trait-based ecology” enables Macquarie University’s Mark Westoby to explain patterns of species occurrence and abundance and to understand the impacts of climate change and changing patterns of land use. He received the $55,000 NSW Scientist of the Year.
Nanocapsules for drugs delivery: Frank Caruso is making miniature capsules that could better deliver drugs for cancer, AIDS and cardiovascular diseases. He won one of the 2014 Victoria Prizes for Science & Innovation worth $50,000.
Genes are not enough to explain the difference between a skin cell and a stem cell, a leaf cell and a root cell, or the complexity of the human brain. Genes don’t explain the subtle ways in which your parents’ environment before you were conceived might affect your offspring.
Another layer of complexity—the epigenome— is at work determining when and where genes are turned on and off.
Ryan Lister is unravelling this complexity. He’s created ways of mapping the millions of molecular markers of where genes have been switched on or off, has made the first maps of these markers in plants and humans, and has revealed key differences between the markers in cells with different fates.
Large numbers of premature-born children may be slipping under the radar, say researchers who have found brain development problems in teenagers deemed clinically normal after a late preterm birth.
Julia Pitcher and Michael Ridding, of the Robinson Research Institute, University of Adelaide, found that children born even one to five weeks premature showed reduced ‘neuroplasticity’ as teenagers. Their study provides the first physiological evidence of the link between late preterm birth and reduced motor, learning and social skills in later life.