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Percheron Artery-Plus Syndrome: A Syndrome Beyond Stroke Chameleon
J Nippon Med Sch. 2021;88(4):375-379. doi: 10.1272/jnms.JNMS.2021_88-414.ABSTRACTThe artery of Percheron (AOP) is an anatomical variant of the thalamoperforating arteries. AOP occlusion can cause bilateral paramedian thalamic infarctions and is referred to as a "stroke chameleon" because it lacks the classic signs of stroke. Coexistence of AOP occlusion and other neurologic disease is rare and can cause disturbance of consciousness. A 78-year-old woman had acute onset of left limb weakness and drowsy consciousness. Brain magnetic resonance angiography (MRA) revealed acute bilateral paramedian thalamic infarctions. However,...
Source: Journal of Nippon Medical School - September 2, 2021 Category: Universities & Medical Training Authors: Fu-Yi Yang Jeng-Luen Hung Shinn-Kuang Lin Source Type: research

UCLA researchers provide first evidence of how obstructive sleep apnea damages the brain
Courtesy of Rajesh Kumar Brains with obstructive sleep apnea (left) and without UCLA researchers have reported the first evidence that obstructive sleep apnea contributes to a breakdown of the blood–brain barrier, which plays an important role in protecting brain tissue. The discovery, reported in the Sept. 1 issue of the Journal of Neuroimaging, could lead to new approaches for treating obstructive sleep apnea, which affects an estimated 22 million American adults. The disorder causes frequent interruptions in breathing during sleep because the airways narrow or become blocked. The blood–brain barrier limits harmful...
Source: UCLA Newsroom: Health Sciences - September 1, 2015 Category: Universities & Medical Training Source Type: news