Reported is the case of a delayed cerebral necrosis in a patient with an eosinophil pituitary adenoma who had undergone radiation therapy. Neuroradiological tests were performed in order to verify the possible existence of a lateral sellar extension of the neoplasm. The administration of ketamine before this examination, presumably caused the onset of an acute temporal syndrome. Surgery was performed without delay, and a delayed cerebral necrosis of the right temporal lobe was found.
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Neural Comput
January 2025
Department of Psychological and Brain Sciences, Indiana University Bloomington, Bloomington, IN 47405, U.S.A.
How episodic memories are formed in the brain is a continuing puzzle for the neuroscience community. The brain areas that are critical for episodic learning (e.g.
View Article and Find Full Text PDFPLoS One
January 2025
Department of Electrical and Computer Engineering, University of Maryland, College Park, MD, United States of America.
Complex systems, such as in brains, markets, and societies, exhibit internal dynamics influenced by external factors. Disentangling delayed external effects from internal dynamics within these systems is often difficult. We propose using a Vector Autoregressive model with eXogenous input (VARX) to capture delayed interactions between internal and external variables.
View Article and Find Full Text PDFElife
January 2025
Department of Neurosurgery, Washington University School of Medicine, Springfield, United States.
Background: Subarachnoid hemorrhage (SAH) is characterized by intense central inflammation, leading to substantial post-hemorrhagic complications such as vasospasm and delayed cerebral ischemia. Given the anti-inflammatory effect of transcutaneous auricular vagus nerve stimulation (taVNS) and its ability to promote brain plasticity, taVNS has emerged as a promising therapeutic option for SAH patients. However, the effects of taVNS on cardiovascular dynamics in critically ill patients, like those with SAH, have not yet been investigated.
View Article and Find Full Text PDFAlzheimers Dement
December 2024
The Fourth People's Hospital of Chengdu, Chengdu, Sichuan, China.
Background: Apolipoproteins and cortical morphology are closely associated with memory complaints, and both may contribute to the development of Alzheimer's disease.
Method: A total of 97 patients from the University of Electronic Science and Technology (UESTC) (n=42) and the Fourth People's Hospital of Chengdu (FPHC) (n=55) were grouped based on recruitment location, and underwent neuropsychological tests. ApoB, ApoA1, ApoB/ApoA1, plasma Alzheimer's biomarker, apolipoprotein E (ApoE) genotyping, 3T magnetic resonance imaging.
Background: Phase four of the Alzheimer's Disease Neuroimaging Initiative (ADNI4) began in 2023. This time-period corresponded to MRI vendors introducing product sequences with compressed sensing (CS), cross-vendor adoption of arterial spin-labelling (ASL) and multi-band slice excitation, and hardware improvements (head-coils, increased gradient amplitudes). These advances enabled the acquisition of new imaging measures and reduced scan times.
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