WASHINGTON: Dozens of molecules may tangle up with rogue bundles of tau, a protein that normally gives nerve fiber structure to cause brain cell damage that contributes to neuro-degenerative diseases, according to a recent study. Neuroscientists have previously found that tau can become toxic when extra chemical molecules accumulate with its structure in the brain, causing it to form tangles of protein that destroy surrounding tissue. Led by researchers from NYU Grossman School of Medicine, the new study analysed the makeup of such tangles and found 12 proteins that they say have not before been tied to both tau and Alzheimer's disease. They also uncovered several dozen other proteins that appear in the latest stages of the disease as well
WASHINGTON: A new study has suggested that patients hospitalised with Covid-19 are at low risk of stroke. Notably, the majority of afflicted patients had existing risk factors, such as high blood pressure and diabetes. These findings provide more clarity about the role Covid-19 plays in causing stroke in a diverse population of the US. The study paper was published in the journal Stroke from Penn Medicine. "While there was an initial concern for a high number of strokes related to Covid-19, that has not been borne out. Importantly, while the risk for stroke in Covid-19 patients is low, it's mostly tied to pre-existing conditions -- so physicians who do see stroke in hospitalised Covid-19 patients must understand the virus is
LONDON: Neurological complications of Covid-19 may include delirium, brain inflammation, stroke, and nerve damage, according to a study which says some of these symptoms may not be a direct consequence of the novel coronavirus infection but due to the immune system acting on healthy cells. The research, published in the journal Brain, identified one rare and sometimes fatal inflammatory condition, known as ADEM, which may be increasing in prevalence due to the pandemic. According to the scientists, including those from the University College London (UCL) in the UK, the team normally sees about one adult patient with ADEM per month, but that increased to at least one per week during the study period, which they added is a concerning increase.