Co60Vitamin B12 Binding Capacity of Normal Human Saliva.

Abstract

1) Vit B₁₂ binding capacity of normal human saliva has been estimated using Co⁶⁰vit B₁₂ and exhaustive dialysis. It varies from 13 to 80 mμg/ml, with a mean of 31 ± 10.2 mμg/ml. 2) These values appear constant for the individual over a period of hours to days. 3) No correlation was found between vit B₁₂ binding capacity and salivary specific gravity, refractive index, optical density at 280 mμ, leukocyte count, ABO blood groups or secretion of ABO substances in saliva.