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Parotid gland is the main source of human salivary epidermal growth factor

Journal Article · · Life Sci.; (United States)
To clarify the production of human epidermal growth factor (EGF) by different salivary glands, the authors measured its concentration by radioimmunoassay separately in whole saliva, in parotid gland (PG) saliva and in mixed submandibular (SMG) and sublingual gland (SLG) saliva. Also, they studied the presence of EGF in PG and SMG by immunohistochemistry. The mean concentrations of EDG in PG saliva was higher than in whole saliva, which in turn was higher than in mixed SMG + SLG saliva. No sex difference existed in any salivary gland EGF. Immunohistochemistry revealed EGF in the acinar cells of both PG and SMG, buy only in PG there were prominent EDG deposits in luminal spaces. Their data suggest that EDG is produced by both PG and SMG, but that more of it is secreted from the PG. This result is new and challenges the general view that human salivary EDG is mainly from SMG.
Research Organization:
Univ. of Helsinki (Finland)
OSTI ID:
6994942
Journal Information:
Life Sci.; (United States), Journal Name: Life Sci.; (United States) Vol. 43:1; ISSN LIFSA
Country of Publication:
United States
Language:
English