glutathione glutamate receptor Figure 2 from Regulation of neuronal synthesis Glutathione Metabolism - an overview
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This makes them suitable for a proof-of-concept trial: there is real variation to detect, and a real-world population that would benefit from better intervention options

However, the acute toxicity of this plant has not been previously assessed

Toxicology (2015) 334:94103

OSDI, Ocular Surface Disease Index

NPJ Biofilms Microbiomes 5 (1), 26

Nevertheless, there are no large, appropriately powered clinical trials that aid in showing the consistent, clinically meaningful endpoints,the heterogeneity of formulations, dosing schedules, and biomarkers employed make meta-analysis more difficult
