Abstract
Summary
In a group of 28 adult subjects, acid stimulated parotid saliva was found to contain: a) less total calcium, b) less non-dialyzable calcium, c) more inorganic phosphorus, d) more protein, than stimulated sub-maxillary saliva from the same individual. In both secretions, about 25% of the total calcium was non-dialyzable and presumably protein-bound. Storage at —20°C before dialysis increased this protein binding about 75% in parotid and 200% in submaxillary saliva. Calcium binding could account, in part at least, for the insoluble matter formed when saliva is frozen and thawed or freeze dried and reconstituted.
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