“This novel radiopharmaceutical tracer – which is being developed by GE Healthcare and called THK-5351 – is designed to detect the brain protein tau by positron emission tomography (PET) scan. Tau accumulates in the brain of individuals with Alzheimer’s, where it forms toxic tangles,”  {read more here}

Researchers set out to study patients with post-traumatic stress disorder (PTSD) using PET scans. They found that a greater imbalance between two neurochemical systems in the brain—serotonin and substance P—meant individuals were more likely to experience PTSD symptoms. {read more here}

A subset of X-chromosome genes seems to give females an extra degree of protection against cancer. This finding, which emerged from a study led by researchers at the Dana-Farber Cancer Institute and the Broad Institute of Harvard and MIT, is surprising because males also have an X chromosome, which might be expected to afford as much protection as the one unsilenced X chromosome in females. Yet some genes on the silenced X chromosome escape dormancy and function normally. These genes, it turns out, are crucial. {read more here}

With high specificity and negative predictive value, FDG-PET/CT can accurately detect distant metastases in women with cervical or endometrial cancer and spare them from unnecessary aggressive therapy, according to a study presented on Sunday at RSNA 2016. {read more here}