Methylcobalamin should not be used in patients with early hereditary optic nerve atrophy (Lebers disease)
Some discontinued clinical trials (for example in postoperative ileus) failed to demonstrate sufficient efficacy in primary endpoints, although certain biological signaling effects remained measurable and scientifically relevant
This divergence could be attributed to the fundamental principles of each technique and the conditions under which the measurements were performed
The ROS produced upon engagement of these receptors can then alter downstream signaling by oxidizing specific cysteine residues within a variety of intracellular proteins including protein kinases, protein phosphatases, adaptor proteins, calcium channels, and transcription factors
PROTEINS INVOLVED IN CYTOSOLIC IRON DISTRIBUTION: MONOTHIOL GLUTAREDOXINS In addition to its role as a ligand in the cytosolic LIP, GSH coordinates iron as part of the FeS carrier complex formed by cytosolic monothiol glutaredoxins (reviewed in Rouhier et al., 2010)