MRI tagged posts

Higher Levels of Leptin indicate Brain Protection against Late-life Dementia

An image of obesity-overweight: A donut with a waist tape
Weight-maintaining hormone key to brain-signal transmission
Contact: Steven Lee, (210) 450-3823, lees22@uthscsa.edu

Weight-maintaining hormone key to brain-signal transmission. A study more closely links obesity to dementia, finding that leptin, a hormone that helps maintain normal body weight, is associated with better signal-transmitting brain white matter in middle-aged adults.

New research is more closely linking obesity to dementia.

Higher levels of leptin, a hormone that helps maintain normal body weight, is associated with better signal-transmitting brain white matter in middle-aged adults, according to a study by The University of Texas Health Science Center at San Antonio (UT Health San Antonio).

“The findings support the known role of leptin variations in late-life d...

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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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Physicists observe Room-Temperature Superconductivity

UNLV physicist Ashkan Salamat (above), along with colleague Ranga Dias, assistant professor of physics and mechanical engineering at the University of Rochester, established room-temperature superconductivity in a diamond anvil cell – a small, handheld, and commonly used research device that enables the compression of tiny materials to extreme pressures. The phenomena, reported today as the cover story in the journal Nature, has implications for how energy is stored and transmitted. (Josh Hawkins/UNLV Photo Services)

The discovery opens door for reimagining the energy grid, technology, society...

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Listening to Quantum Radio

This quantum chip (1×1 cm big) allows the researchers to listen to the smallest radio signal allowed by quantum mechanics.
Credit: TU Delft

Researchers at Delft University of Technology have created a quantum circuit that enables them to listen to the weakest radio signal allowed by quantum mechanics. This new quantum circuit opens the door to possible future applications in areas such as radio astronomy and medicine (MRI). It also enables researchers to do experiments that can shed light on the interplay between quantum mechanics and gravity.

We have all been annoyed by weak radio signals at some point in our lives: our favourite song in the car turning to noise, being too far away from our wifi router to check our email...

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