For the generation of iPSC-derived neurons, we took advantage of the doxycycline-induced NGN2 expression system 26,27
Greaves and Barsoum 1990
Before reconstitution (powder): Refrigerate at 36-46F (2-8C) Shelf life: 12-24 months Can handle short periods at room temp during shipping After reconstitution (liquid): Must refrigerate at 36-46F Shelf life: 28 days with bacteriostatic water Never freeze (destroys peptide structure) Label with date reconstituted Signs your BPC-157 has degraded: Solution becomes cloudy Visible particles or flakes Yellow or brown discoloration Unusual smell If you see any of these, discard the vial
When your B12 is low, you might feel: Tired all the time, even after sleeping well Mentally foggy, with trouble concentrating Dizzy or lightheaded Depressed or anxious Your energy drops, and basic tasks can start to feel overwhelming
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Conditions associated with elevated B12 levels include: Liver disease : Hepatocellular damage releases stored B12 into circulation, with levels correlating with disease severity in conditions such as cirrhosis, hepatitis, and hepatocellular carcinoma Renal impairment : Reduced kidney function decreases B12 clearance, leading to accumulation Haematological malignancies : Myeloproliferative disorders, acute leukaemia, and polycythaemia vera can elevate B12 through increased production of B12-binding proteins (transcobalamins) Solid tumours : Certain cancers, particularly those affecting the liver or gastrointestinal tract, may elevate B12 levels A specific concern relates to cyanocobalamin in patients with Leber's hereditary optic neuropathy , a rare mitochondrial disorder
