フェレット顎下腺の微細構造的ならびに組織化学的研究
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概要
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The submandibular glands of adult male and female ferrets (Mustela putorius furo), a strict carnivore, were studied histochemically using periodic-acid Schiff (PAS) reaction, alcian blue (AB) reaction and PAS-AB reaction to demonstrate mucopolysaccharides in tissue sections. The glands were also examined by electron microscopy. The submandibular glands were composed of the terminal portions, the intercalated ducts and the striated ducts. In both sexes, the secretory endpieces were mixed, consisting of mucous acini capped by seromucous demilunes. The mucous granules in the acinar cells had fine fibrillar substructure of moderate electron density, while granules in the seromucous demilune cells contained a dense sphele in the structureless matrix. The granules in both mucous acinar and seromucous demilune cells were intensely positive to PAS reaction. The granules in the mucous acinar cells were intensely positive to AB reaction, but those in the demilune cells were faintly positive to it. When sections were stained doubly with PAS and AB, mucous acinar cells were intensely positive to AB staining, and seromucous demilune cells were intensely positive to PAS staining, respectively. The intercalated ducts were extremely short and lacked obvious characteristics. The striated ducts were well-developed and contained numerous secretory granules in the supranuclear cytoplasm. These granules were moderately positive to PAS staining, but negative to AB staining. These results contrasted with previous observations by Jacob and Poddar (1987). The sexual dimorphism was not observed in the ferret submandibular glands.
- 九州歯科学会の論文
- 1997-04-25