Methylmalonic acid levels are normally low in healthy individuals. Elevated levels have been linked to aging and vitamin B12 deficiency, raising questions about their role in cancer biology.

丙酸盐（propionate）代谢的副产物甲基丙二酸（MMA，methylmalonic acid）的全身水平会随着机体衰老而增加，且MMA能通过在 肿瘤细胞 ...

Methylmalonic acid levels are normally low in healthy individuals. Elevated levels have been linked to aging and vitamin B12 deficiency, raising questions about their role in cancer biology.

When a patient has a B12 deficiency it can result in muscle weakness, numbness in hands and feet, difficulty walking, nausea, loss of appetite, and unintentional weight loss. In addition, it can allow ...