glutathione peroxidase hearing loss GPX3 activates autophagy to protect cochlear spiral ganglion neurons from injury in age-related Hearing Loss and Oxidative Stress:
Description
Since its discovery in ox bile in 1827, several physiological functions have been described for the amino acid, ranging from the classical role of conjugating agent for bile acids, to wider actions as osmotic pressure regulator, modulator of calcium homeostasis and signaling and, more recently, as an endogenous anti-oxidant and anti-inflammatory compound in various tissues

This dose is set to keep Vitamin B12 levels in the body after the initial doses fix the deficiency

Cheng J, et al

The nitro reductase is required for the reduction of the nitro group
