Publications by authors named "E Mallas"
Traumatic brain injury commonly impairs attention and executive function, and disrupts the large-scale brain networks that support these cognitive functions. Abnormalities of functional connectivity are seen in corticostriatal networks, which are associated with executive dysfunction and damage to neuromodulatory catecholaminergic systems caused by head injury. Methylphenidate, a stimulant medication that increases extracellular dopamine and noradrenaline, can improve cognitive function following TBI.
View Article and Find Full Text PDFA signal mixer facilitates rich computation, which has been the building block of modern telecommunication. This frequency mixing produces new signals at the sum and difference frequencies of input signals, enabling powerful operations such as heterodyning and multiplexing. Here, we report that a neuron is a signal mixer.
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- Urinary tract infections (UTIs) significantly contribute to hospitalizations and fatalities among individuals with dementia compared to matched controls and those with diabetes.
- A large study analyzed data from over 2.4 million people aged 50+ in Wales between 2000-2021, finding that UTIs in dementia and diabetes were linked to increased mortality rates, especially in those with both conditions.
- Delayed or untreated UTIs led to a notable increase in the risk of death, with 5.4% of untreated individuals with dementia dying within 60 days after diagnosis, rising to 5.9% for those also having diabetes.
There is growing concern that elite rugby participation may negatively influence brain health, but the underlying mechanisms are unclear. Cortical thickness is a widely applied biomarker of grey matter structure, but there is limited research into how it may be altered in active professional rugby players. Cross-sectional MRI data from 44 active elite rugby players, including 21 assessed within 1 week of head injury, and 47 healthy controls were analysed.
View Article and Find Full Text PDFBackground: Online technology could potentially revolutionise how patients are cognitively assessed and monitored. However, it remains unclear whether assessments conducted remotely can match established pen-and-paper neuropsychological tests in terms of sensitivity and specificity.
Methods: This observational study aimed to optimise an online cognitive assessment for use in traumatic brain injury (TBI) clinics.