Rat Parathyroid Gland, with Special Reference to Its Blood Vascular Bed, Pericapillary Space and Intercellular Space

Toshihisa Tanaka, Mari Tsubouchi, Yutaka Tsubouchi, Aiji Ohtsuka, Takuro Murakami

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

The blood vascular bed, perivascular space and intercellular space of the rat parathyroid gland were studied using scanning electron microscopy of vascular casts, freeze-cracked tissue samples, and NaOH-digested tissue blocks. The findings were supplemented by transmission light and electron microscopy of iron colloid-treated or enzyme-digested tissue sections. The rat parathyroid gland contained a rich network of capillaries. These capillaries were surrounded by marked pericapillary spaces which were demarcated by basal lamina of both capillaries and parenchymal cells. The pericapillary spaces contained numerous collagen fibrils, and issued many crista-like projections which ran deep into the sheets of parenchymal cells. The intercellular spaces of parenchymal cells contained neither basal lamina nor collagen fibrils. The surfaces of the parenchymal cells showed strong negative charging, and maintained the intercellular spaces. The luminal surfaces of the capillary endothelium also showed strong negative charging, and maintained the capillary lumen.

Original languageEnglish
Pages (from-to)243-253
Number of pages11
JournalActa medica Okayama
Volume50
Issue number5
Publication statusPublished - Oct 1 1996

Keywords

  • Cationic and anionic iron colloid stainings
  • Freeze fracture
  • Maceration
  • Parathyroid gland
  • Vascular casting

ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)

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