Methylmalonic acid (MMA) is related to the metabolism of branched chained amino acids and fatty acids. Objectives: To compare cerebrospinal fluid (CSF) total homocysteine and MMA in elderly subjects, ...

Investigations were inconsistently reported but where tested, B12 was mostly low or low normal, and homocysteine and MMA were raised. In nine out of ten cases reported, the outcome was favourable, ...

We audited a random selection of the data to see if key investigations for vitamin B12 deficiency had been conducted including: Plasma homocysteine, plasma and urine methylmalonic acid (MMA), folate, ...

rbh.nthames.nhs.uk BACKGROUND Raised plasma homocysteine is a risk factor for coronary artery disease. Patients with myocardial infarction or unstable angina show greater activation of coagulation, ...