Light microscopy and ultrastructure of the liver of &lt;em&gt;Astyanax altiparanae&lt;/em&gt; Garutti and Britski, 2000 (Teleostei, Characidae)

Bertolucci, Bruno; Vicentini, Carlos Alberto; Vicentini, Irene Bastos Franceschini; Bombonato, Maria Terezinha Siqueira

doi:10.4025/actascibiolsci.v30i1.1456

Cited by 3 publications

(2 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The cells are mostly organized in acini which contain eosinophilic zymogen granules, responsible for the production and storage of pancreatic digestive enzymes (Genten et al ., 2009). Similar findings were observed in the characids Oligosarcus jenynsii (Petcoff et al ., 2006) and lambari Astyanax altiparanae (Bertolucci et al ., 2008) and also in Ctenopharyngodon idella (Mokhtar, 2015), Labeo niloticus (Naguib et al ., 2009) and Huso huso (Sheibani & Yali, 2006) with no clear histological difference between strictly herbivorous fishes. The duct system of the pancreas of dourado consisted of intercalated, intralobular, interlobular and main pancreatic duct, which works together to deliver enzymes produced by the exocrine cells into the midgut segment (Liggitt & Dintzis, 2012).…”

Section: Discussionmentioning

confidence: 99%

Morphology of the digestive system in carnivorous freshwater dourado Salminus brasiliensis

Alves

Pereira

Rosa

2021

Journal of Fish Biology

View full text Add to dashboard Cite

The digestive system of teleost shows remarkable functional and morphological diversity. In this study, the digestive tract and accessory organs of dourado Salminus brasiliensis are characterized using anatomical, histological, histochemical and immunohistochemical analyses. The existence of taste buds bordered by microridges in the oesophagus of dourado was recorded for the first time, thus showing that the species drives food intake by either swallowing or rejecting the food item. The Y-shaped stomach of dourado consisted of cardiac, cecal and pyloric regions with tubular gastric glands registered solely in the cardiac and cecal segments. The intestine is a short N-shaped tube with two loops, an intestinal coefficient of 0.73. The structure of pyloric caeca is similar to that of the intestine wall, comprising tunica mucosa, tela submucosa, tunica muscularis and tunica serosa layers. Histochemical analyses revealed an increased incidence of goblet cells from the midgut to the hindgut segment.A well-developed enteric plexus of scattered nerve cell and fibres are found along the digestive tract, and the calcitonin gene-related peptide (CGRP) immunoreactive neurons and fibres were identified in the myenteric plexus from the oesophagus to the hindgut. The exocrine pancreas appears diffuse in the mesentery around the stomach, intestine and also reaches the liver, and the endocrine pancreas is organized as a few islets of Langerhans. The liver comprises three distinct, asymmetric lobes, and the portal triad arrangement was registered in this tissue.

show abstract

Section: Discussionmentioning

confidence: 99%

Morphology of the digestive system in carnivorous freshwater dourado Salminus brasiliensis

Alves

Pereira

Rosa

2021

Journal of Fish Biology

View full text Add to dashboard Cite

show abstract

“…Fish are a good biological model because they are constantly exposed to the environmental conditions and distributed in various trophic levels. Astyanax altiparanae (Garutti & Britski, 2000) Teleostei, Characidae, is a freshwater fish with a wide distribution in the Neotropical region; and presents an ecological and economic importance (Bertolucci et al, 2008). In addition to the biological model, the use of biomarkers is an advantageous tool to evaluate the sublethal effects in different levels of organization (Guiloski et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Biochemical and genotoxicity assessment of a polluted urban river using the native fish Astyanax altiparanae Garutti & Britski (Teleostei, Characidae)

Calado¹,

Andrade²,

Garrido³

et al. 2020

Ecotoxicol. Environ. Contam.

View full text Add to dashboard Cite

Agriculture residues and domestic effluents are contaminants that reach aquatic ecosystems leading to toxic effects to environment and human health. These contaminants impacting mainly developing countries, due to precarious treatment of effluents and lack of legislation in the use of pesticides. Perequê River (South of Brazil) is impacted by pesticides (mainly glyphosate) and domestic effluents. The aims of this study were to analyze the concentration of glyphosate in water and sediments of Perequê River; and to evaluate the sublethal effects of the river contamination in Astyanax altiparanae using biomarkers. A sampling of water, sediment and fish were carried out in Perequê River (November/2016). The samples were collected in two sites, site 1 (S1) that is located on agriculture area and water catchment point; and site 2 (S2) located on the area with a domestic effluents influence. Water and sediment samples were used to glyphosate quantification. Fish were collected and tissues (brain, muscle, liver) were used to biochemical and genetic biomarkers. Glyphosate were quantified in S1, which is impacted by agriculture. Alterations in the liver biomarkers were not observed between the sites. However, the decrease in the AChE activity was observed in the S2, showing that the mixture of contaminants (urban and agriculture contaminants) can lead to anticholinesterasic effects. The sublethal effects observed can be a threat of environmental and human health.

show abstract

Comparative Anatomical, Histological and Histochemical Study of the Liver in Three Species of Birds

Hamodi¹,

Abed²,

Taha³

2013

RJS

View full text Add to dashboard Cite

The aim of this study is to determine the anatomical features and histological structures as well as some histochemical aspects of the liver of three species of birds that differ in their nutrition, habitat and classification, by using light microscope. The birds were Larus canus, Agaporins fischeri and Numida meleagris. The results showed that the liver of the three species of birds was a dense, large and bilobed organ, it differed in size, color, lobes shape and presence of secondary lobes among the three species. The liver tissue of the three species consisted of hepatocytes which were radially arranged around the central veins interconnecting laminae of one to two cell thickness. The hepatocytes differed in size among the three species. Lumen of sinusoids contained mainly erythrocytes, macrophages and lining by the Kupffer cells. Histochemically, the hepatic cells in the three species of birds were weakly positive to periodic acid Schiff and alcian blue reactions, while they were negative to bromophenol blue reaction and they were moderately positive to Sudan black B reaction.

show abstract

Light microscopy and ultrastructure of the liver of <em>Astyanax altiparanae</em> Garutti and Britski, 2000 (Teleostei, Characidae)

Cited by 3 publications

References 11 publications

Morphology of the digestive system in carnivorous freshwater dourado Salminus brasiliensis

Morphology of the digestive system in carnivorous freshwater dourado Salminus brasiliensis

Biochemical and genotoxicity assessment of a polluted urban river using the native fish Astyanax altiparanae Garutti & Britski (Teleostei, Characidae)

Comparative Anatomical, Histological and Histochemical Study of the Liver in Three Species of Birds

Contact Info

Product

Resources

About