Microglia antioxidant systems and redox signalling

Mitochondrial peroxiredoxin involvement in antioxidant defence and redox signalling.

Prxs (peroxiredoxins) are a family of proteins that are extremely effective at scavenging peroxides. The Prxs exhibit a number of intriguing properties that distinguish them from conventional antioxidants, including a susceptibility to inactivation by hyperoxidation in the presence of excess peroxide and the ability to form complex oligomeric structures. These properties, combined with a high c...

Antioxidant Molecules and Redox Cofactors

2.1. Glutathione 2.1.A. Biological Functions 2.1.B. Biosynthesis 2.1.C. Degradation 2.1.D. Other Thiol-Based Redox Buffers 2.2. Ascorbate 2.2.A. Ascorbate Chemistry 2.2.B. Ascorbate Biosynthesis 2.2.C. Ascorbate Recycling 2.2.D. Ascorbate Transport 2.2.E. Importance of Ascorbate in Stress and Disease 2.3. Other Antioxidants 2.3.A. Lipid-Soluble Antioxidants 2.3.B. Water-Soluble Antioxidants 2.3...

Photosynthesis: Regulation by redox signalling

Photosynthesis is light-driven redox chemistry. Molecular redox signalling, the coupling of gene expression to electron transfer, is now implicated in the adaptation of photosynthesis to variation in light quality and quantity.

Redox signalling in development and regeneration.

[Redox and microglia in the pathophysiology of schizophrenia].

Altered antioxidant status has been implicated in schizophrenia. Microglia are major sources of free radicals such as superoxide in the brain, and play crucial roles in various brain diseases. Recent postmortem and imaging studies have indicated microglial activation in the brain of schizophrenia patients. Animal models that express some phenotypes of schizophrenia have revealed the underlying ...