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impaired glutathione synthesis b12 usmle In vitamin deficiency, it is expected that methylmalonic acid and homocysteine will be elevated since B12 is an important cofactor for their metabolism. Review more high-yield concepts about B12 deficiency on USMLE Step 1 High‐Yield Hematology/Oncology
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Most methyl groups originate from dietary methionine, which converts to S-adenosylmethionine ( SAMe ), an unstable molecule that donates methyl groups for essential reactions
Shields, H

The Plant Cell 10: 11351149

Adderall's four amphetamine salts include dextroamphetamine saccharate, amphetamine aspartate, dextroamphetamine sulfate, and amphetamine sulfate
Physiology , 38 , 4250
