Atypische Lebermitochondrien, adaptative Sonderformen? III. Parakristalline Einschlüsse im intracristalen Raum

Riede, U. N.; Nobmann, E.

doi:10.1016/s0005-8165(74)80123-x

Cited by 10 publications

(2 citation statements)

References 28 publications

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“…In the rabbit, the second kind of mitochondria1 inclusion consists of an array of parallel rigid cristae that contain paracrystalline material and that sometimes are connected by bridges. Such mitochondrial modifications have been noted in both normal (Nathaniel, 1976;Valdivia and Berger, 1973;Riede and Nobmann, 1974) and pathologically affected (Tani et al, 1971) organs of a variety of species, but their significance is still entirely speculative.…”

Section: Discussionmentioning

confidence: 99%

Ultrastructure of the submandibular gland in the rabbit

Toyoshima

Tandler

1986

Am. J. Anat.

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The secretory endpieces of the rabbit submandibular gland are unusual in that they consist of seromucous acini (not demilunes) that empty into serous tubules that in turn drain into intercalated ducts. Seromucous granules consist of a moderately dense spherule in a fibrillogranular matrix. Serous granules contain a feltwork of filaments, which are liberated as a tangled skein during exocytosis. Peculiar granulated cells that have secretory granules of complex morphology are present at each end of the serous tubules. Intercalated ducts are, cytologically speaking, relatively simple, but the duct cells may contain a few oblong secretory granules. Striated ducts are typical in structure, although postfixation with ferrocyanide-reduced osmium reveals significant amounts of glycogen in the basal processes. Modified mitochondria are present in striated duct cells, but their frequency varies from rabbit to rabbit. Such mitochondria contain either an array of parallel, rigid cristae linked by intermembranous bridges, or a bundle of helical filaments within an expanded crista. Interspersed with the striated duct cells, especially near the duct origin, are some highly vacuolated cells with sparse mitochondria. Excretory ducts consisting of stratified columnar (sometimes pseudostratified) epithelium often show bleb formation of the luminal surface of the tall cells.

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Section: Discussionmentioning

confidence: 99%

Ultrastructure of the submandibular gland in the rabbit

Toyoshima

Tandler

1986

Am. J. Anat.

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“…These authors claim that such lamellar associations are unique to steroidproducing mitochondria. It is true that such aggregates have been observed in glioblastoma multiforme cells (Tani et al, 1971), and hepatocytes (Riede and Nobmann, 1974;Valdivia and Berger, 1976;Walter et al, 1980); mitochondria in both glial and hepatic cells are able to import cholesterol, which can be metabolized via cytochrome P450 to form steroids. However, similar aggregations of mitochondrial cristae have been reported to occur in a variety of non-steroidal cells including thyroid follicular cells (Nathaniel, 1976), duct cells in salivary glands (Tandler, 1986;Toyoshima and Tandler, 1986), and tumour cells of the latter organs (Tandler and Erlandson, 1983).…”

Section: Discussionmentioning

confidence: 99%