Uric Acid Enhances Neurogenesis in a Parkinsonian Model by Remodeling Mitochondria

Published on June 2, 2022

Think of it like enhancing a garden by adding miracle-gro fertilizer. In a study on Neurology, researchers found that Uric Acid (UA), a natural antioxidant, can kickstart the growth of new brain cells in Parkinson’s disease (PD). Neurogenesis, the process of generating new neurons, is significantly impaired in PD, but when UA levels were increased in mice with PD-like symptoms, neurogenesis in a key brain region called the subventricular zone (SVZ) was restored. In addition to an in vivo model, the scientists studied neural precursor cells (NPCs) grown in a dish and found that UA treatment promoted cell proliferation. The researchers also found that UA impacted the mitochondria, the powerhouse of cells, by increasing the expression of mitochondrial fusion markers. These exciting findings suggest that UA could be a potential therapy for promoting brain cell growth in PD patients. To learn more about this groundbreaking research, check out the full article!

BackgroundAdult neurogenesis is the process of generating new neurons to enter neural circuits and differentiate into functional neurons. However, it is significantly reduced in Parkinson’s disease (PD). Uric acid (UA), a natural antioxidant, has neuroprotective properties in patients with PD. This study aimed to investigate whether UA would enhance neurogenesis in PD.MethodsWe evaluated whether elevating serum UA levels in a 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP)-induced parkinsonian mouse model would restore neurogenesis in the subventricular zone (SVZ). For a cellular model, we primary cultured neural precursor cells (NPCs) from post-natal day 1 rat and evaluated whether UA treatment promoted cell proliferation against 1-methyl-4-phenylpyridinium (MPP+).ResultsUric acid enhanced neurogenesis in both in vivo and in vitro parkinsonian model. UA-elevating therapy significantly increased the number of bromodeoxyuridine (BrdU)-positive cells in the SVZ of PD animals as compared to PD mice with normal UA levels. In a cellular model, UA treatment increased the expression of Ki-67. In the process of modulating neurogenesis, UA elevation up-regulated the expression of mitochondrial fusion markers.ConclusionIn MPTP-induced parkinsonian model, UA probably enhanced neurogenesis via regulating mitochondrial dynamics, promoting fusion machinery, and inhibiting fission process.

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