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Environmental controls prevent degradation that can affect experimental outcomes
Gentle swirling is acceptable, but shaking can denature the peptide and reduce potency
doi: 10.1177/15563316251355551
1 , 11 This hypothesis maintains that one of two X chromosomes in each cell of the female embryo is inactivated and remains inactive throughout subsequent cell divisions for the duration of life
This suggests that absorption or metabolic utilisation of B12 may differ in some South Asian individuals (Refsum et al., 2001, AJCN)
Methods Human subjects We studied 128 patients admitted to the stroke unit at John F
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