title: "Pored-domes" of the fenestrated endotheliocyte of the glomerular and peritubular capillaries in the rodent kidney.
abstract: The fenestrated endotheliocyte of peritubular and glomerular capillaries in rat and mouse kidneys were observed with SEM and TEM. In the glomerular capillary, so-called "pored-domes" were found not only at the fenestrated areolae but also at the nuclear region of the endotheliocyte. At the region between filtration surface and nuclear region, they accumulated to construct a sponge-like structure. The endotheliocyte of peritubular capillary also showed small "pored-domes". The size and morphology of the pores in the "pored-domes" of glomerular and peritubular capillaries were similar to those of areolae fenestratae of the respective capillary. Based on the findings, we assumed that pored-domes and the sponge-like structure are the reservoir for the fenestrated area of the endotheliocyte to accommodate the rapid expansion of capillary lumen.
authors.affiliation: Department of Anatomy, Fukuoka University School of Medicine, Japan.
authors.forename: Y
authors.initials: Y
authors.lastname: Koriyama
authors.forename: E
authors.initials: E
authors.lastname: Yamada
authors.forename: I
authors.initials: I
authors.lastname: Watanabe
mesh_terms: D000818:Animals; D004730:Endothelium, Vascular / Q000166:cytology / Q000648:ultrastructure*; D007678:Kidney Glomerulus / Q000098:blood supply / Q000166:cytology / Q000648:ultrastructure*; D007684:Kidney Tubules / Q000098:blood supply / Q000166:cytology / Q000648:ultrastructure*; D051379:Mice; D008855:Microscopy, Electron, Scanning; D051381:Rats