Fine structural characteristics of the hepatic sinusoidal walls of the goldfish (Carassius auratus).

Electron microscopic study on the sinusoidal wall of the liver in the flatfish, Kareius bicoloratus: Demonstration of numerous desmosomes along the sinusoidal wall.

“…Recently, it has been demonstrated that some piscine livers show many desmosomal junctions between sinusoidal cells including hepatocytes (NoPANITAYA et al, 1979a, b;TANUMA and ITo, 1980;FUJITA et al, 1980;SAKANO ane FUJITA, 1981; Y. T.ANtiMA, M. OHATA and T. ITO: SHIN, 1981). This paper reports the results of an electron microscopic investigation of the flatfish liver with special attention to the desmosomal junctions between hepatic sinusoidal cells including hepatocytes.…”

“…It was reported that both in the larval and adult lamprey the hepatocytes do not protrude microvilli into the Disse's sapce, but, instead, the perisinusoidal surfaces of the hepatocytes are deeply infolded covered by a basal lamina (SHIN, 1977;PEEK et al, 1979). By contrast, perisinusoidal microvilli of the hepatocyte are well developed in fishes, amphibia and reptiles (SPORNITZ, 1975;TANUMa and ITO, 1980;FUJITA et al, 1980;SHIN, 1981;TAIRA and MUTOH, 1981), while the perisinusoidal surface of hepatocytes of these lower vertebrates is lacking in the basal lamina. Thus, it has been suspected that subsequent to the appearance of microvilli, the basal lamina covering the perisinusoidal surface of the hepatocytes might disappear.…”

“…The images of the discontinuous endothelium with diaphragma-lacking f enestrae often gathered into clusters, "sieve plates", agreed with the findings in the goldfish (NOPANITAYA et al, 1979a) and in the crucian liver (TANUMA and ITO,1980). The discontinuous endothelium of the hepatic sinusoid is a common feature in lower vertebrates, i.e., reptiles, amphibia, fishes and cyclostomata (SPORNITZ,1975;SHIN, 1977;PEEK et al, 1979;TANUMA and ITO, 1980;FUJITA et al, 1980;TAIRA and MUTOH, 1981). Only in the lamprey has it been proposed that the basal lamina occurs not only at the base of the hepatocytes PEEK et al,1979) but also along the sinusoidal endothelium (SHIN, 1977) and that several fenestrae of the membraneous extension of the sinusoidal endothelium sometimes contain diaphragma (PEEK et al, 1979).…”

Comparative Ultrastructural Study of the Ito Cells in the Liver in Some Reptiles

“…However, electron microscope studies on crucian carp (TANUMA and ITO, 1980) and goldfish livers (FUJITA, TAMARU and MIYAGAWA, 1980) suggested that the filament-rich perisinusoidal cell might be, at least in part, nothing but the empty Ito cell. The Ito cell, including the empty Ito cell, in the reptile liver is quite similar in structure and location to the cell found in the fish liver except for the absence of desmosomal junctions.…”

The Ultrastructure and Histology of Hepatocellular Carcinomas of English Sole (Parophrys vetulus) from Puget Sound, Washington

“…The ultrastructure of normal hepatocytes (5, 15, 28, 29, 61, 63), sinusoids and perisinusoidal cells (8,10,11,36,45,49,59) and the biliary system (17,28,63,65) has been described for several species of fish. However, in English sole, the normal liver histology has been only briefly described (44, 46), and the subcellular morphology has not been examined.…”