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PET shows link between endorphins, depression
Researchers have found more evidence that depression has its roots in specific alterations within the brain, particularly in the endorphin system that is a central part of the brain's natural pain and stress reduction capability.
Researchers have found more evidence that depression has its roots in specific alterations within the brain, particularly in the endorphin system that is a central part of the brain's natural pain and stress reduction capability.
Susan Kennedy, Ph.D., and colleagues at the University of Michigan Molecular and Behavioral Neuroscience Institute evaluated 28 women, 14 with major depression, and 14 healthy controls. Subjects were asked to recall a sad life event while undergoing PET with radiolabeled carfentanil. Nondepressed women did not activate their micro-opioid system. Depressed women's micro-opioid system, however, was overactive even at baseline (Arch Gen Psych 2006:63;1199-1206).
This is the first time that specific differences in the micro-opioid system have been shown between people with depression and those without, according to the study.
New Study Assesses Benefits of High-Resolution Photon-Counting for Computed Tomography Angiography
October 10th 2024Researchers found that ultra-high resolution photon-counting significantly enhanced visualization of small vessels and facilitated improved reduction of blooming artifacts for head and neck computed tomography angiography (CTA) scans.
Multicenter Study Identifies Key Factors Associated with Mammogram-Occult Ipsilateral Breast Cancer
October 9th 2024A symptomatic first breast cancer diagnosis, prevailing breast density at a second breast cancer diagnosis and trabecular thickening on surveillance mammography were linked to mammogram-occult ipsilateral breast cancer, according to new research.
