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06-16-2017, 02:17 AM | #1 | ||
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ScienceDaily article:
"Pre-clinical study suggests Parkinson's could start in gut endocrine cells: - protein linked to Parkinson's could spread from gut to nervous system" Pre-clinical study suggests Parkinson's could start in gut endocrine cells: Protein linked to Parkinson's could spread from gut to nervous system -- ScienceDaily Open-access research paper: "Alpha-Synuclein in gut endocrine cells and its implications for Parkinson's disease", Rashmi Chandra, Annie Hiniker, Yien-Ming Kuo, Robert L. Nussbaum, Rodger A. Liddle. JCI Insight, 2017; 2 (12) DOI: 10.1172/jci.insight.92295 JCI Insight - α-Synuclein in gut endocrine cells and its implications for Parkinson’s disease (hat tip to aspergerian at HU for the links) |
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"Thanks for this!" says: | kiwi33 (06-16-2017) |
06-16-2017, 05:59 AM | #2 | |||
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Grand Magnate
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Thanks jeffreyn - it looks like a very impressive paper to me.
As an aside, JCI (the parent of JCI Insight) is one of the most respected biomedical journals, with an impact factor of >12. Because of that, I doubt that poor-quality work will get published in JCI Insight.
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Knowledge is power. |
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06-18-2017, 02:57 PM | #3 | ||
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Curcumin Treatment Improves Motor Behavior in α-Synuclein Transgenic Mice
Effect of curcumin analogs onα-synuclein aggregation and cytotoxicity. - PubMed - NCBI The curry spice curcumin plays a protective role in mouse models of neurodegenerative diseases, and can also directly modulate aggregation of α-synuclein protein in vitro, yet no studies have described the interaction of curcumin and α-synuclein in genetic synucleinopathy mouse models. Here we examined the effect of chronic and acute curcumin treatment in the Syn-GFP mouse line, which overexpresses wild-type human α-synuclein protein. We discovered that curcumin diet intervention significantly improved gait impairments and resulted in an increase in phosphorylated forms of α-synuclein at cortical presynaptic terminals. Acute curcumin treatment also caused an increase in phosphorylated α-synuclein in terminals, but had no direct effect on α-synuclein aggregation, as measured by in vivo multiphoton imaging and Proteinase-K digestion. Using LC-MS/MS, we detected ~5 ng/mL and ~12 ng/mL free curcumin in the plasma of chronic or acutely treated mice, with a glucuronidation rate of 94% and 97%, respectively. Despite the low plasma levels and extensive metabolism of curcumin, these results show that dietary curcumin intervention correlates with significant behavioral and molecular changes in a genetic synucleinopathy mouse model that mimics human disease. |
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