國家衛生研究院 NHRI:Item 3990099045/14213
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    Please use this identifier to cite or link to this item: http://ir.nhri.org.tw/handle/3990099045/14213


    Title: The functional vision restorative effect of crocin via the BDNF–TrkappaB pathway: An in vivo study
    Other Titles: The functional vision restorative effect of crocin via the BDNF–TrkB pathway: An in vivo study
    Authors: Wu, JL;Yang, SL;Ho, YC;Chen, CH;Tasi, BR;Lee, MC;Chen, BY
    Contributors: Institute of Population Health Sciences
    Abstract: Abnormal dislocation of cone opsin protein affects the sensitivity function of photoreceptors and results in depressed central vision. Nutraceutical therapy is needed to restore the residual function of photoreceptors. Crocin is a natural substance for retinal health. However, its effect on the restoration of functional vision and its underlying mechanisms have not been fully studied. This study analyzed the restorative effect of crocin on residual functional vision in vivo in a mouse model. High-energy light-evoked photoreceptor dysfunction was confirmed by M opsin dislocation in the retina accompanied by a loss of functional vision. Crocin treatment significantly increased brain-derived neurotrophic factor (BDNF) protein in retinas, thus contributing to the re-localization of the M opsin protein, restoration of the visual acuity (VA), and high spatial frequency-characterized visual contrast sensitivity function (VCSF). In contrast, such effects were significantly reversed after the washout period. Additionally, the restorative effect of crocin on functional vision and M opsin re-localization can be reversed and blocked by synchronous injection of a tropomyosin receptor kinase B (TrkB) receptor antagonist (ANA-12). This study demonstrated the major functional vision-rescuing or restoring effect of crocin in vivo by modulating M opsin location plasticity and increasing the capacity of the residual photoreceptor function through the BDNF–TrkB receptor pathway.
    Date: 2022-04-20
    Relation: Nutrients. 2022 Apr 20;14(9):Article number 1716.
    Link to: http://dx.doi.org/10.3390/nu14091716
    JIF/Ranking 2023: http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=NHRI&SrcApp=NHRI_IR&KeyISSN=2072-6643&DestApp=IC2JCR
    Cited Times(WOS): https://www.webofscience.com/wos/woscc/full-record/WOS:000795366000001
    Cited Times(Scopus): https://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85128559350
    Appears in Collections:[Meng-Chih Lee] Periodical Articles

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