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methylcobalamin, the adenosyl ligand in vitamin B 12 is replaced by methyl
This conversion is carried out by the intracellular enzyme 5-alpha-reductase, which has two type I and type II isoforms
leading to long-term disability
For maintenance, a low dose (100 mcg once daily) may suffice
Conjugation of 15-keto-prostaglandins by glutathione S-transferases [PMID: 708749] Laboratory literature summary: Conjugation of 15-keto-prostaglandins by glutathione S-transferases
In their lyophilised (freeze-dried) form, many peptides can remain stable at room temperature for short periods, although cooler conditions are always preferred
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