Abstract
The submandibular glands of female mice and the sublingual and parotid glands of adult male and female mice have been examined by light microscopical immunocytochemistry for nerve growth factor (NGF). In female submandibular glands, staining for NGF was observed in granular convoluted tubule and striated duct cells. Sublingual glands of the mouse contained relatively few granular cells staining for NGF compared with submandibular glands. However, such granular cells appeared to be more numerous in male sublingual glands than in female glands. The remainder of the intralobular duct cells in both male and female sublingual glands exhibited apical subluminal staining for NGF as well as light basal plasmalemmal staining. Parotid glands in both male and female mice exhibited a similar pattern of staining for NGF in striated duct cells. However, the glands did not contain granular cells nor did they exhibit any pattern of staining which reflected a sexual dimorphism. Immunodot staining of salivary gland extracts confirmed the presence of immunoreactivity for NGF in all three of the major salivary glands.
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