A sex difference in serum cobalamin and transcobalamin levels.
In healthy young adults, serum levels of cobalamin, unsaturated and total cobalamin binding capacity, and transcobalamin (TC) II are significantly higher in females, while TC III is higher in males. These findings have relevance to the reference values in normals for these tests.
D000293:Adolescent; D000328:Adult; D005260:Female; D006801:Humans; D008297:Male; D012737:Sex Factors; D014155:Transcobalamins / Q000032:analysis*; D014805:Vitamin B 12 / Q000097:blood*
D014155:Transcobalamins; D014805:Vitamin B 12