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Nitrone-based Therapeutics for Neurodegenerative Diseases. Their use alone or in Combination with Lanthionines.
Abstract The possibility of free radical reactions occurring in biological processes led to the development and employment of novel methods and techniques focused on determining their existence and importance in normal and pathological conditions. For this reason the use of Nitrones for spin trapping free radicals came into widespread use in the 1970s and 1980s when surprisingly the first evidence of their potent biological properties was first noted. Since then wide-spread exploration and demonstration of the potent biological properties of phenyl-tert-butylnitrone (PBN) and derivatives were shown in preclinical ...
Source: Free Radical Biology and Medicine - February 15, 2013 Category: Biology Authors: Floyd RA, Castro Faria Neto HC, Zimmerman GA, Hensley K, Towner RA Tags: Free Radic Biol Med Source Type: research

Alternative functions of the brain transsulfuration pathway represent an underappreciated aspect of brain redox biochemistry with significant potential for therapeutic engagement.
Abstract Scientific appreciation for the subtlety of brain sulfur chemistry has lagged, despite understanding that the brain must maintain high glutathione (GSH) to protect against oxidative stress in tissue that has both a high rate of oxidative respiration and a high content of oxidation-prone polyunsaturated fatty acids. In fact, the brain was long thought to lack a complete transsulfuration pathway (TSP) for cysteine synthesis. It is now clear that not only does the brain possess a functional TSP, but brain TSP enzymes catalyze a rich array of alternative reactions that generate novel species including the gas...
Source: Free Radical Biology and Medicine - November 6, 2014 Category: Biology Authors: Hensley K, Denton TT Tags: Free Radic Biol Med Source Type: research

A Vascular Perspective On Neuronal Migration
Publication date: Available online 17 July 2015 Source:Mechanisms of Development Author(s): Marta Segarra, Bettina C. Kirchmaier, Amparo Acker-Palmer During CNS development and adult neurogenesis, immature neurons travel from the germinal zones towards their final destination using cellular substrates for their migration. Classically, radial glia and neuronal axons have been shown to act as physical scaffolds to support neuroblast locomotion in processes known as gliophilic and neurophilic migration, respectively (Hatten, 1999; Marin and Rubenstein, 2003; Rakic, 2003). In adulthood, long distance neuronal migration oc...
Source: Mechanisms of Development - July 17, 2015 Category: Biology Source Type: research