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Article Publish Status: FREE
Abstract Title:

The neuroprotective effect of hesperidin in NMDA-induced retinal injury acts by suppressing oxidative stress and excessive calpain activation.

Abstract Source:

Sci Rep. 2017 Jul 31 ;7(1):6885. Epub 2017 Jul 31. PMID: 28761134

Abstract Author(s):

Shigeto Maekawa, Kota Sato, Kosuke Fujita, Reiko Daigaku, Hiroshi Tawarayama, Namie Murayama, Satoru Moritoh, Takeshi Yabana, Yukihiro Shiga, Kazuko Omodaka, Kazuichi Maruyama, Koji M Nishiguchi, Toru Nakazawa

Article Affiliation:

Shigeto Maekawa

Abstract:

We found that hesperidin, a plant-derived bioflavonoid, may be a candidate agent for neuroprotective treatment in the retina, after screening 41 materials for anti-oxidative properties in a primary retinal cell culture under oxidative stress. We found that the intravitreal injection of hesperidin in mice prevented reductions in markers of the retinal ganglion cells (RGCs) and RGC death after N-methyl-D-aspartate (NMDA)-induced excitotoxicity. Hesperidin treatment also reduced calpain activation, reactive oxygen species generation and TNF-α gene expression. Finally, hesperidin treatment improved electrophysiological function, measured with visual evoked potential, and visual function, measured with optomotry. Thus, we found that hesperidin suppressed a number of cytotoxic factors associated with NMDA-induced cell death signaling, such as oxidative stress, over-activation of calpain, and inflammation, thereby protecting the RGCs in mice. Therefore, hesperidin may have potential as a therapeutic supplement for protecting the retina against the damage associated with excitotoxic injury, such as occurs in glaucoma and diabetic retinopathy.

Study Type : In Vitro Study

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