the vitamin b6 status of 60 institutionalised elderly subjects ( group a : 31 men , mean age = 77 yr and 29 women , mean age = 84 yr ) and 41 healthy young adults ( group b or control group : 18 men , mean age = 30 yr and 23 women , mean age = 27 yr ) was evaluated using erythrocyte aspartate aminotransferase activity coefficient ( alpha egot ) and plasma pyridoxal phosphate ( plp ) level ( vitamin b6-deficient subjects = alpha greater than 2.0 and plp less than 80 nmol/l ) .
C0034263
pyridoxal
C0087162
vitamin