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Neural Signaling
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Biology of Brain Disorders
Brain disorders, including neurological and neuropsychiatric conditions, represent a challenge for public health systems and society at large. The limited knowledge of their biology hampers the development of diagnostic tools and effective therapeutics. A clear understanding of the mechanisms that underlie the onset and progression of brain disorders is required in order to identify new avenues for therapeutic intervention. Overlapping genetic risk factors across different brain disorders suggest common linkages and pathophysiological mechanisms that underlie brain disorders. Methodological and technological advances are leading to new insights that go beyond traditional hypotheses. Taking a...
From Oxidative Stress to Cognitive Decline - Towards Novel Therapeutic Approaches
Oxidative stress plays multiple roles in the pathobiology of several neurodegenerative disorders and Alzheimer’s disease in particular. Increased oxidative stress in the brain is suggested to be associated with aging, greater amounts of easily oxidizable unsaturated fatty acids, higher utilization of oxygen by the brain, mitochondrial-derived free radicals, calcium homeostasis, and glutamate-induced excitotoxicity. Moreover, environmental chemicals/toxins, heavy metals, and an imbalanced diet might increase oxidative stress potentially leading to a decrease in cognitive functions. Cellular health is also dependent on the levels of nicotinamide adenine dinucleotide (NAD+). It has been well ...
Glial Cells: Managers of Neuro-immunity
Immune responses within the brain are still scarcely explored. Nerve tissue damage is accompanied by the activation of glial cells, primarily microglia and astroglia, and such activation is responsible for the release of cytokines and chemokines that maintain the local inflammatory response and actively recruit lymphocytes and monocytes to the damaged areas. Theoretically, these responses are designed to repair the brain damage. However, alterations, or a chronic perpetuation of these responses may underlie a number of neuro-pathologies. It is thought that each inflammatory scenario within the brain have a specific biochemical footprint characterized by the release of determined cytokines, c...
Wild Lily, Prairie Fire
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