glutathione peroxidase genes Genome-Wide Characterization of (GPX) Gene Family in Rapeseed (Brassica napus L.) Revealed Their Role in Multiple Abiotic Stress Response and Hormone Signaling Sequence homology analysis of PgGPX

The ampoules were probably OK for a short while after expiration , but I would not use them now 4 months later

doi: 10.1016/j.freeradbiomed.2023.09.004, PMID: [DOI] [PubMed] [Google Scholar] 121.Zhang Y, Zhang C, Qian W, Lei F, Chen Z, Wu X, et al

Store at -20C, protected from light, moisture, and oxygen, for long-term stability

2012;142:w13659

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Long-term observational data further correlate Vitamin D sufficiency with reduced autoantibody titers and disease activity