Summaries by Inventor Mach, Robert

PET Radiotracers for Imaging Free Radicals and Reactive Oxygen Species (Materials: WC-4-77)
Chu, Wenhua ; Dugan, Laura ; Mach, Robert ; Mintun, Mark
T-009254

— Many diseases can be associated with abnormal production of reactive oxygen species (ROS) due to oxidative stress. Currently there is no way to image this in situ. Dihydroethidium (DHE) naturally produces a fluorescent product when oxidized by an ROS. The signal is not strong enough for practical im…

Conformationally-flexible benzamide analogs as sigma-2 selective ligands
Mach, Robert ; Rowland, Douglas ; Tu, Zhude "Will" ; Welch, Michael
T-004063

— The sigma-2 (σ2) receptor is an important target for the development of molecular probes in oncology because of its 10-fold higher density in proliferating tumor cells than in quiescent tumor cells, and the observation that σ2 receptor agonists are able to kill tumor cells via apoptotic …

Sigma-1 targeted PET tracers
Mach, Robert ; Tu, Zhude "Will" ; Wang, Wei
T-010394

— Technology Description Researchers at Washington University in St. Louis and their colleagues have developed positron emission tomography (PET) tracers with high affinity for sigma-1 receptors. Sigma receptors have two subtypes, sigma-1 and sigma-2. Sigma-1 has high expression in the limbic and mo…

Tri-heterocyclic ring compounds as alpha-synuclein ligands
Kotzbauer, Paul ; Mach, Robert ; Tu, Zhude "Will" ; Yu, Lihai
T-011942

— A novel series of phenothiazine-derived molecules are useful for detecting Parkinson’s disease using positron emission tomography (PET) imaging. The molecules bind with high affinity to the alpha- synuclein protein, which forms aggregates in the brain and is associated with the neurodegenerati…