Evaluation of the therapeutic potential of Epigallocatechin-3-gallate (EGCG) via oral gavage in young adult Down syndrome mice
| Autor: | Charles R. Goodlett, Megan Stringer, Roshni Patel, Randall J. Roper, Jonathan LaCombe, Joseph M. Wallace |
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| Rok vydání: | 2020 |
| Předmět: |
Down syndrome
Genotype DYRK1A Administration Oral lcsh:Medicine Morris water navigation task Pharmacology complex mixtures Article Catechin Oral gavage Target validation Learning and memory Gene product Mice medicine Animals heterocyclic compounds Femur Young adult Maze Learning lcsh:Science Multidisciplinary business.industry Body Weight lcsh:R food and beverages X-Ray Microtomography medicine.disease In vitro Disease Models Animal Treatment Outcome Cancellous Bone lcsh:Q Gene expression sense organs Down Syndrome Trisomy business |
| Zdroj: | Scientific Reports, Vol 10, Iss 1, Pp 1-17 (2020) Scientific Reports |
| ISSN: | 2045-2322 |
| DOI: | 10.1038/s41598-020-67133-z |
| Popis: | Epigallocatechin-3-gallate (EGCG) is a candidate therapeutic for Down syndrome (DS) phenotypes based on in vitro inhibition of DYRK1A, a triplicated gene product of Trisomy 21 (Ts21). Consumption of green tea extracts containing EGCG improved some cognitive and behavioral outcomes in DS mouse models and in humans with Ts21. In contrast, treatment with pure EGCG in DS mouse models did not improve neurobehavioral phenotypes. This study tested the hypothesis that 200 mg/kg/day of pure EGCG, given via oral gavage, would improve neurobehavioral and skeletal phenotypes in the Ts65Dn DS mouse model. Serum EGCG levels post-gavage were significantly higher in trisomic mice than in euploid mice. Daily EGCG gavage treatments over three weeks resulted in growth deficits in both euploid and trisomic mice. Compared to vehicle treatment, EGCG did not significantly improve behavioral performance of Ts65Dn mice in the multivariate concentric square field, balance beam, or Morris water maze tasks, but reduced swimming speed. Furthermore, EGCG resulted in reduced cortical bone structure and strength in Ts65Dn mice. These outcomes failed to support the therapeutic potential of EGCG, and the deleterious effects on growth and skeletal phenotypes underscore the need for caution in high-dose EGCG supplements as an intervention in DS. |
| Databáze: | OpenAIRE |
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