Estudo morfológico do tecido hepático de &lt;em&gt;Leporinus macrocephalus&lt;/em&gt;

Bombonato, Maria Terezinha Siqueira; Rochel, Sabrina Santos; Vicentini, Carlos Alberto; Vicentini, Irene Bastos Franceschini

doi:10.4025/actascibiolsci.v29i1.157

Cited by 14 publications

(25 citation statements)

References 3 publications

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“…The network of blood capillaries showed vessels that were anastomosed and drained by centre-lobular veins. These findings are similar to other teleosts (Akiyoshi, Inoue, 2004;Bombonato et al, 2007). The bile ducts observed in the three species had a simple cubic epithelium, which becomes columnar in large ducts similar to other teleosts (Vicentini et al, 2005;Faccioli et al, 2014).…”

Section: Discussionsupporting

confidence: 77%

Comparative histology in the liver and spleen of three species of freshwater teleost

et al. 2017

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We describe and compare the histology of liver and spleen of Geophagus brasiliensis (Perciformes), Hypostomus francisci (Siluriformes) and Hoplias aff. malabaricus (Characiformes), tropical freshwater fishes. In G. brasiliensis and H. aff. malabaricus the hepatocytes were arranged in tubular form whereas in H. francisci they cord-like. In all species, hepatocytes presented glycogen, but in G. brasiliensis and H. aff. malabaricus they showed strong stained for hemossiderin in the cytoplasm. In G. brasiliensis and H. aff. malabaricus, melanomacrophage centres (MMCs) were associated to hepatic structures and only in G. brasiliensis was observed intrahepatic exocrine pancreas. The spleen, in all species, was characterized by red and white pulp without boundary between the two regions, but only in H. francisci was recorded nodular organization in splenic parenchyma. The G. brasiliensis and H. aff. malabaricus presented in the white pulp MMCs linked mainly to ellipsoids. Besides, we observed large MMCs in the spleen in relation to liver of G. brasiliensis and H. aff. malabaricus. In liver, highest values of reticular fibers and collagen were observed in G. brasiliensis. In spleen, highest values of reticular fibers and collagen were recorded in H. aff. malabaricus and H. francisci, respectively. Histological differences confirm the hypothesis that the phylogenetic distance is reflected in liver and spleen.Keywords: Extracellular matrix, Hepatocytes, Intrahepatic exocrine pancreas, Melanomacrophage centres, Red and White pulp.Nós descrevemos e comparamos a histologia do fígado e do baço de Geophagus brasiliensis (Perciformes), Hypostomus francisci (Siluriformes) e Hoplias aff. malabaricus (Characiformes), peixes neotropicais de água doce. Em G. brasiliensis e H. aff. malabaricus os hepatócitos organizaram-se na forma tubular enquanto que em H. francisci eles apresentaram-se como cordões celulares. Em todas as espécies, os hepatócitos apresentaram glicogênio, mas em G. brasiliensis e H. aff. malabaricus, eles mostraram forte marcação para hemossiderina no citoplasma. Em G. brasiliensis e H. aff. malabaricus, centros melanomacrofágicos (CMMs) foram associados a estruturas hepáticas e somente em G. brasiliensis foi observado pâncreas exócrino intrahepático. O baço, em todas as espécies, foi caracterizado pela polpa vermelha e branca sem limites entre as duas regiões, mas somente em H. francisci foi registrado uma organização nodular no parênquima esplênico. G. brasiliensis e H. aff. malabaricus apresentaram na polpa branca CMMs associados principalmente a elipsoides. Além disso, nós observamos CMMs grandes no baço em relação ao fígado de G. brasiliensis e de H. aff. malabaricus. No fígado, valores altos de fibras reticulares e colágeno foram observado em G. brasiliensis. No baço, valores altos de fibras reticulares e colágeno foram registrados em H. aff. malabaricus e H. francisci, respectivamente. Diferenças histológicas confirmam a hipótese que a distância filogenética está refletida no fígado e no baço. Palavras-chave:...

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Section: Discussionsupporting

confidence: 77%

Comparative histology in the liver and spleen of three species of freshwater teleost

et al. 2017

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“…The macroscopic and microscopic findings observed in zebrafish liver were similar to those found in other teleosts [1,2,4]. The liver location in the medial portion of the coelomic cavity, its size and shape were due to an adjustment to the space occupied by other organs during the embryonic development [2].…”

Section: Macroscopy and Histologysupporting

confidence: 64%

“…Moreover, another important role of the liver in fish is that it serves as an indicator of their nutritional and physiological status [1]. Due to the metabolism functions, it also serves as environmental pollution bioindicator in this species [5].…”

Section: Introductionmentioning

confidence: 99%

Macro- and microstructural descriptions of the zebrafish (Danio rerio) liver

2016

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“…In the liver parenchyma of H. platyrhynchos, the hepatocytes are arranged in cords and it was no division in lobules and portal triads was observed, as evidenced in other teleosts (Kendall & Hawkins;Hampton et al, 1985;Gonzalez et al, 1993;Vicentini et al, 2005;Bombonato et al;Bertolucci et al). The hepatocytes of H. platyrhynchos are polygonal and present basal nucleus and apical cytoplasm with few glycogen granules but large amount of lipids, similar to observed in Sparus aurata (El-Bakary & El-Gammal, 2010).…”

Section: Discussionmentioning

confidence: 98%

“…According to Bruslé & Anadon, although there are variations between the species, the liver of teleosts in general presents three lobes. The main cellular type of the liver is the hepatocytes which are arranged as cords forming cellular plates, each of which separates several lacunae: the vascular (sinusoids) and biliary (canaliculi) network (Eurell & Haensly, 1982;Bruslé & Anadon;Bombonato et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

Morphology and Histochemistry of the Liver of Carnivorous Fish Hemisorubim platyrhynchos

Faccioli¹,

Chedid

Bombonato³

et al. 2014

Int. J. Morphol.

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SUMMARY:The aim of this study was to characterize the normal structure of the liver of Hemisorubim platyrhynchos, a carnivorous freshwater catfish found in Neotropical region, using gross anatomy, histology and histochemistry. Anatomically, the liver presents C-shaped and only two lobes: smaller right and bigger left. The gallbladder is located in right lobe and shows elongated shaped. Histological analysis demonstrated that the hepatic parenchyma is made of two hepatocytes plates surrounded by sinusoids. The hepatocytes are polygonal-shaped cells, with spherical nucleus and a dark prominent nucleolus. The cytoplasm presents large amount of lipids and glycogen deposits PAS positives. There are no hepatic lobules or portal triads. Bile ducts are lined by columnar epithelial cells with apical mucosubstances PAS and AB positive. Furthermore, the liver presents melano-macrophages centers, distributed next to the blood vessels and bile ducts, constituted by cells accumulating pigments, whose presence may be related to the nutritional status of the fish. Moreover pancreatic tissue was observed in visceral portion of liver, formed by exocrine pancreatic tissue and islet organ, constituting an extrahepatic pancreas.

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Estudo morfológico do tecido hepático de <em>Leporinus macrocephalus</em>

Cited by 14 publications

References 3 publications

Comparative histology in the liver and spleen of three species of freshwater teleost

Comparative histology in the liver and spleen of three species of freshwater teleost

Macro- and microstructural descriptions of the zebrafish (Danio rerio) liver

Morphology and Histochemistry of the Liver of Carnivorous Fish Hemisorubim platyrhynchos

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