Parotid and submaxillary calcium in human cystic fibrosis

Abstract Examination of salivary calcium concentration by atomic absorbtion spectrophotometry revealed that: (1) parotid as well as submaxillary total calcium was elevated in C F patients; (2) most of the elevation in submaxillary calcium was in the dialysable fraction; (3) submaxillary calcium concentration in C F could not be correlated with disease severity; and (4) heterozygotes did not exhibit elevations in submaxillary calcium.