Category Biology/Biotechnology

LSU Health New Orleans Discovers Potential New Rx Strategy for Stroke

Αmyloid β peptide–mediated damage

Research conducted at LSU Health New Orleans Neuroscience Center of Excellence reports that a combination of LSU Health-patented drug and selected DHA derivatives is more effective in protecting brain cells and increasing recovery after stroke than a single drug. The findings are published in Brain Circulation, available here.

Nicolas Bazan, MD, PhD, Boyd Professor, Professor of Neurology and Director of the Neuroscience Center of Excellence at LSU Health New Orleans School of Medicine, and Ludmila Belayev, MD, LSU Health New Orleans Professor of Neuroscience, Neurology, and Neurosurgery, discovered this novel therapeutic strategy for ischemic stroke using an experimental model

During an ischemic stroke, signals are produced from arriving blood white cells and primary brain immu...

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Brain Imaging predicts PTSD after brain injury

This shows the outline of a brain in a woman's head
Together, the findings suggest that a “brain reserve,” or higher cortical volumes, may provide some resilience against PTSD. Image is in the public domain

Brain volume measurement may provide early biomarker. Posttraumatic stress disorder (PTSD) is a complex psychiatric disorder brought on by physical and/or psychological trauma. How its symptoms, including anxiety, depression and cognitive disturbances arise remains incompletely understood and unpredictable. Treatments and outcomes could potentially be improved if doctors could better predict who would develop PTSD. Now, researchers using magnetic resonance imaging (MRI) have found potential brain biomarkers of PTSD in people with traumatic brain injury (TBI).

The study appears in Biological Psychiatry: Cognitive Neuroscience a...

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Astrocytes eat Connections to maintain Plasticity in Adult Brains

Image: A 3-D animated image showing our synapse phagocytosis reporter in mouse hippocampus. Presynapses in green, astrocytes in white, and microglia in blue. Phagocytosed presynapses by glia were shown in red.
 Image: A 3-D animated image showing our synapse phagocytosis reporter in mouse hippocampus. Presynapses in green, astrocytes in white, and microglia in blue. Phagocytosed presynapses by glia were shown in red.

Developing brains constantly sprout new synapses as they learn and remember. Important connections — the ones that are repeatedly introduced, such as how to avoid danger — are nurtured and reinforced, while connections deemed unnecessary are pruned away. Adult brains undergo similar pruning, but it was unclear how or why synapses in the adult brain get eliminated.

Now, a team of researchers based in Korea has found the mechanism underlying plasticity and, potentially, neurological disorders in adult brains. They published their findings on December 23 in Nature.

“Our findi...

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New Drug Inhibits the Growth of Cancer cells

Cartoon representation of the POLRMT-Inhibitor complex.
© Hauke S. Hillen

Blocking gene expression in mitochondria in mice stops cancer cells from growing. A newly developed compound starves cancer cells by attacking their “power plants” — the mitochondria. The new compound prevents the genetic information within mitochondria from being read. Researchers from the Max Planck Institute for Biology of Ageing in Cologne, the Karolinska Institute in Stockholm and the University of Gothenburg report in their study that this compound could be used as a potential anti-tumour drug in the future; not only in mice but also in human patients.

Mitochondria provide our cells with energy and cellular building blocks necessary for normal tissue and organ function...

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