Have you ever been cut off while driving and found yourself swearing and laying on the horn? Or come home from a long day at work and lashed out at whoever left the dishes unwashed? From petty anger to the devastating violence we see in the news, acts of aggression can be difficult to comprehend....
Tag: <span>brain</span>
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Autopsies show COVID-19 virus in brain, elsewhere in body
by Jim Wappes, University of Minnesota RNA in situ (RNAscope) detection of SARS-CoV-2 in extrapulmonary tissues. a–h, SARS-CoV-2 virus is localized to the Golgi and endoplasmic reticulum, perinuclear in appearance, in the following organs and cell types (×500 magnifications, scale bars, 2 μm, all panels): thyroid of P19, demonstrating the presence of virus in follicular cells...
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Researchers find that brains with more vitamin D function better
by Tufts University Credit: Unsplash/CC0 Public Domain An estimated 55 million people worldwide live with dementia, a number that’s expected to rise as the global population ages. To find treatments that can slow or stop the disease, scientists need to better understand the factors that can cause dementia. Researchers at Tufts University have completed the...
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Major discovery about mammalian brains surprises researchers
by University of Copenhagen The cover illustration shows vacuolar-type adenosine triphosphatases (V-ATPases, large blue structures) on a synaptic vesicle from a nerve cell in the mammalian brain. Image: C. Kutzner, H. Grubmüller and R. Jahn/Max Planck Institute for Multidisciplinary Sciences. Credit: C. Kutzner, H. Grubmüller and R. Jahn/Max Planck Institute for Multidisciplinary Sciences. In a...
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Experimental fentanyl vaccine stops the drug from entering the brain
By Ben Coxworth November 15, 2022 Fentanyl is one of the most potent opioids, and is therefore one of the most lethal when taken in excessDepositphotos Even when someone is determined to beat their fentanyl addiction, there’s still a good chance they will relapse at some point, and start taking the opioid again. A new...
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Study yields clues as to why Alzheimer’s disease damages certain parts of the brain
by Washington University School of Medicine Red and orange areas on these heat maps of human brains show where the gene APOE is most active (top two brain images) and where tangles of the protein tau are most concentrated (bottom two brain images). APOE is the biggest genetic risk factor for Alzheimer’s, and tau tangles...
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Most detailed map of brain’s memory hub finds connectivity puzzle
by University of Sydney High-resolution image of the ‘wiring diagram’ of a human brain revealing connections to the hippocampus. Credit: Marshall Dalton/ University of Sydney The most detailed map ever made of the communication links between the hippocampus—the brain’s memory control center—and the rest of the brain has been created by Australian scientists. And it...
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HUSH gene-silencing complex contributes to normal brain development and function
by IMBA- Institute of Molecular Biotechnology of the Austrian Academy of Sciences Magnification of the mouse cerebellum, the brain region that plays an important role in motor control. Nuclear DNA is shown in blue. In green is the tri-methylation of lysine 9 on histone H3 (H3K9me3), an indicator of silenced heterochromatin. Credit: ©Hagelkruys/IMBA The gene-silencing...
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A combination of micro and macro methods sheds new light on how different brain regions are connected
by Lisa Vincenz-Donnelly, Human Brain Project Detail of a human brain section showing the architecture of fibers down to single axons in the hippocampus, revealed by 3D Polarized Light Imaging. Colors represent 3D fiber orientations highlighting pathways of individual fibers and tracts. Credit: Markus Axer and Katrin Amunts, INM-1, Forschungszentrum Jülich To understand how our...
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New view on the brain: It’s all in the connections
by Radboud University Nijmegen Credit: Pixabay/CC0 Public Domain It’s not the individual brain regions but rather their connections that matter. Neuroscientists propose a new model of how the brain works. This new view enables us to understand better why and how our brains vary between individuals. The researchers have published their work in a special...