Vitamin b12 contributes to key functions of various organs and systems of the body, including: The production of red blood cells, which transport oxygen throughout the body
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Author contributions Mahmoud Hussein Hadwan (Conceptualization [equal], Data curation [equal], Formal analysis [equal], Funding acquisition [equal], Investigation [equal], Methodology [equal], Project administration [equal], Resources [equal], Software [equal], Supervision [equal], Validation [equal], Visualization [equal], Writingoriginal draft [equal], and Writingreview & editing [equal]), Abbas Ali Mohammed (Data curation [equal], Investigation [equal], Methodology [equal], Software [equal], and Writingreview & editing [equal]), Saeed Najavand (Data curation [equal], Project administration [equal], Resources [equal], Software [equal], Supervision [equal], Investigation [equal], Methodology [equal], and Writingreview & editing [equal]), Roaa Altaee (Investigation [equal], Methodology [equal], Validation [equal], and Writingreview & editing [equal]), and Asad Hadwan (Data curation [equal], Formal analysis [equal], Investigation [equal], Methodology [equal], Validation [equal], and Writingreview & editing [equal]) Conflicts of interest None declared

"The fate of selected micropollutants in a single-house MBR." Water Research 2009, 43(7):2036-2046
2), while mean plasma oxidized glutathione (GSSG) did not significantly change suggesting that GSH may play a central antioxidant role in plasma during intensive physical exercise and that its modifications are closely related to exercise intensity
Notably, this chain-breaking activity is amplified by synergistic interactions with ascorbic acid, which regenerates -TOH from its oxidized tocopheryl radical, enhancing redox cycling efficacy [116]