scholarly journals Histopathology from liver of tuvira ( Gymnotus spp.) parasitized by larvae of nematodes

2016 ◽  
Vol 46 (7) ◽  
pp. 1233-1239 ◽  
Author(s):  
Arlene Sobrinho Ventura ◽  
Márcia Mayumi Ishikawa ◽  
Andrea Maria de Araújo Gabriel ◽  
Helcy Lylian Nogueira Silbiger ◽  
Fabiana Cavichiolo ◽  
...  

ABSTRACT: The aim of this study was to evaluate the histological changes in the liver of thirty-five Gymnotusspp. parasitized by endohelminths collected between April 2012 to October 2013 in commercial bait fish farming of Pantanal basin. Histological cuts of 7µm were stained with hematoxylin-eosin for parasites research and liver changes and have also been submitted to the Perls histochemical method for evaluation of hemosiderosis (Fe+++) based on the incidence degree and severity of change (Grade I, II and III) and tests for the presence of central melanomacrophages. Parasites identified were: Brevimulticaecumsp. with a prevalence of 22,9%, Eustrongylidessp 17,1%, Contracaecumtype I 68,7%, Contracaecumtype II 5,7%, Contracaecumtype III 5,7% and larvae of Anisakidae11,4%. Histological analysis showed intense disorganization of hepatic parenchyma with degenerate hepatocytes due to high parasitic infection, changes that can be deleterious and compromise the organism functioning, being harmful to the health of evaluated animals. Also evidencing normal tissue interleaved with different stages of Fe+++ deposit in grades II and III, injuring or destroing the cell. Histopathological changes in the tuvira's liver suggested a chronic response and the development of a balance relation between tuvira and parasitism by endohelminth identified in this study. There are also a testimony to the health condition of commercial bait fish farming on current ecosystem conditions.

2018 ◽  
Vol 1 (2) ◽  
pp. 109
Author(s):  
Hotimah Masdan Salim ◽  
Lintan Farizqi Kurnia ◽  
Tri Wahyu Bintarti ◽  
Handayani Handayani

Introduction Hypercholesterolemia contributes as a risk factor for endothelial dysfunction in the kidneys and worsens the condition of patients with previous kidney damage. This study aimed to examine the effect of hypercholesterol diet in kidney structure.Methods: This was an experimental study, a case control using eight-week-old Rattus novergicus, divided into control and treatment group. High-fat diet (HFD) was administrated orally to treatment group for 14 days. All data statistically analyzed with two-paired ANOVA and post hoc for comparison.Results: Histological analysis using hematoxylin-eosin staining showed degeneration in nephrons, including glomerulosclerosis, segmental necrosis and tubular defects. The mononuclear cell infiltration was Increased in HFD group significantly (P<0.05).Conclusion: We concluded that a high fat diet induced obesity and may lead to renal deformities as a result of histopathological changes such as dilatation, tubular defects, inflammation and connective tissue enlargement of the kidney.


2017 ◽  
Vol 26 (2) ◽  
pp. 239-242
Author(s):  
Bianca Porto Kuraiem ◽  
Marcelo Knoff ◽  
Nilza Nunes Felizardo ◽  
Rodrigo Caldas Menezes ◽  
Delir Corrêa Gomes ◽  
...  

Abstract Priacanthus arenatus is a fish that occurs in the waters of the western Atlantic Ocean and has few records of parasitism. This study aimed to report histological changes caused by the larvae of Hysterothylacium deardorffoverstreetorum. Between July and December, 2013, 30 samples of P. arenatus were obtained from fish markets in the cities of Niterói and Rio de Janeiro, state of Rio de Janeiro, Brazil. Fragments of spleen, liver, stomach wall and mesentery tissues containing nodules and free parasites were extracted to histopathological study. Through histological analysis it was verified that these nodules consisted of connective tissue capsules, in which the parasites were located, with granulomatous inflammation mainly comprised of macrophages and lymphocytes. These nodules also consisted of a central portion of acellular amorphous material, formed by concentric layers, which was slightly basophilic and contained tunnels and, sometimes, parasite debris. The presence of tunnels in acellular amorphous material suggests that the larvae are initially located at the center of the nodules and then they migrate to the surface.


1986 ◽  
Vol 25 (03) ◽  
pp. 139-142 ◽  
Author(s):  
A. Mauriello ◽  
Y. Sambuy ◽  
E. Bonanno ◽  
A. Orlandi ◽  
G. Palmieri ◽  
...  

SummaryAmong the numerous existing computer-based systems for processing pathological data, none contains sufficient space for encoding data on the basic cytological or histological changes of a certain organ or tissue, upon which the final diagnosis is based.An “analytical record” was constructed listing all the basic changes that can be encountered in the various pathological conditions of the vascular wall. The data collected on the “analytical record” were coded by means of an alphanumeric code and stored in an Apple II 48 K minicomputer.The advantages of this system include the computerization of the data by non-specialized personnel and the possibility to’ quantitatively analyze the histocytopathological parameters used for diagnosis in vascular pathology. This coding system may easily be adapted, with minor modifications, to the histopathological study of other organs and tissues.


2016 ◽  
Vol 5 (09) ◽  
pp. 4874
Author(s):  
Manisha Satpathi* ◽  
Ravinder Singh

Dioctyl phthalate (DOP) commonly used as plasticizer enters into aquatic environment from the industries manufacturing plastic products, PVC resins, cosmetics and many other commercial products. Therefore, this study was designed to evaluate the acute toxicity effects of Dioctyl phthalate on fresh water fish Clarias batrachus. The 96 hour LC50 of Dioctyl phthalate in Clarias batrachus was estimated as 14.5ml/L. Histopathological changes in liver of Clarias batrachus were determined by exposing them to a fraction of LC50(1/5th) dose with every change of water for 30 days.The liver of Clarias batrachus was excised at every interval of 30 days and histological changes of liver were studied under light microscopy. Liver tissues showed abnormalities. Centrilobular vacuolation, necrosis, eccentric nuclei and enlarged nuclei, Centrilobular degeneration of hepatocytes were observed in liver tissue of fish.


2021 ◽  
Vol 10 (2) ◽  
pp. e21410212439
Author(s):  
Vanessa Sobue Franzo ◽  
Leiny Paula de Oliveira ◽  
Ana Carolina Pôssas Viana ◽  
Adriano Tony Ramos ◽  
Jéssica Fernanda Bertolino ◽  
...  

The Southern Caracara is a bird of prey, of the family Falconidae, inhabits all the Brazilian territory, they are omnivorous birds adapted for hunting. The digestive system of the predators presents differences in their morphology due to their eating habits. Knowing the importance of the gastrointestinal system, this study aims to carry out a histological study of the tongue, esophagus and the crop of Polyborus plancus. For this purpose, eight avian of both sexes, with different body weights and ages were used, they were euthanized and the organs were collected, fixed, dehydrated and stained with hematoxylin-eosin. It was noted that the tongue has stratified squamous epithelium with mucous glands and with different degrees of keratinization. The esophagus and crop have four well developed muscle layers and mucous glands. Additionally, in the crop there is presence of an adventitious layer that consists of loose connective tissue. We conclude that the tongue, the esophagus and the crop of the Southern Caracara have similar histological organization of several birds like the Pekin Ducks, ostriches, domestic chicken and partridges.


Author(s):  
Shafiqa Mohammed Haidra Masdoose ◽  
Akram Thabet Nasher ◽  
Monya A. El-Zine ◽  
Ameen Abdullah Yahya Al-Akwa ◽  
Hassan Abdulwahab Al-Shamahy ◽  
...  

Background: Prophylactic extraction of the asymptomatic impacted third molar is routinely practiced in Europe and the United States. The justification for prophylactic extraction includes the need to reduce the risk of pathologic changes such as cysts and tumors.   Objectives: This study aimed to study the histological and radiological changes in the tooth follicles of upper and lower complete impacted 3rd molars -which appeared radiologically normal. Material and method: A prospective study included fifty patients aged 20 years and above who were referred to the Oral Surgery Clinic, Faculty of Dentistry, University of Sana'a. Patients had follicular space between (2.5mm -3mm) as measured by the panoramic X-ray. These teeth were removed surgically and the follicle was sent for histopathological examination. Results: Most histopathological changes were in dental follicles with a size of <2.5 mm (86%), and only 14% with 2.5 mm - 3 mm. There was statistical significance between the smallest size of dental follicles with the incidence of pathological histological changes indicating a high probability of developing neoplasm (p =0.008).  Of the 50 follicular patients, 28% showed HC, nine (64%) had ameloblastoma, four (29%) had a dentigerous cyst, and only one case (7%) had a multicalcified focus with islands of odontogenic epithelium. While 72% of the samples had normal follicles and non-specific chronic inflammatory cells. There is an association between female sex and pathological histological changes (12 females: 2 males, p =0.008), age group 21-25 years (93% HC), with mandibles (65% HC). Regarding angle and histopathological changes, 36% were vertical, 29% mesioangular, 14.2% horizontal and destioangular, and 7.1% buccoangular. Conclusion:  High incidence of HC occurred in patients with DF, and it was associated with smaller dental follicle size, most HC was ameloblastoma, followed by dentigerous cyst, while 72% of samples had normal follicles and non-specific chronic inflammatory cells. There is a correlation between female gender, younger age group, and jaw position with HC. Prophylactic extraction of the asymptomatic impacted third molar should be routinely practiced in Yemen, to reduce the risk of pathological changes, especially in females and younger age groups.                            Peer Review History: Received 11 January 2021; Revised 8 February; Accepted 28 February, Available online 15 March 2021 UJPR follows the most transparent and toughest ‘Advanced OPEN peer review’ system. The identity of the authors and, reviewers will be known to each other. This transparent process will help to eradicate any possible malicious/purposeful interference by any person (publishing staff, reviewer, editor, author, etc) during peer review. As a result of this unique system, all reviewers will get their due recognition and respect, once their names are published in the papers. We expect that, by publishing peer review reports with published papers, will be helpful to many authors for drafting their article according to the specifications. Auhors will remove any error of their article and they will improve their article(s) according to the previous reports displayed with published article(s). The main purpose of it is ‘to improve the quality of a candidate manuscript’. Our reviewers check the ‘strength and weakness of a manuscript honestly’. There will increase in the perfection, and transparency.  Received file:                Reviewer's Comments: Average Peer review marks at initial stage: 5.5/10 Average Peer review marks at publication stage: 7.5/10 Reviewer(s) detail: Dr. A.A. Mgbahurike, University of Port Harcourt, Nigeria, [email protected] Dr. Alfonso Alexander Aguileral, University of Veracruz,  Mexico, [email protected]   Similar Articles: RADIOGRAPHIC ASSESSMENT OF THE COURSE AND VISIBILITY OF THE MANDIBULAR CANAL BY PANORAMIC RADIOGRAPHY


2017 ◽  
Vol 45 (1) ◽  
pp. 9
Author(s):  
Rebekah Rank Araújo ◽  
Rayane Chitolina Pupin ◽  
Renata Cunha Madureira ◽  
Luiz Gustavo de Morais ◽  
Lucas De Souza Quevedo ◽  
...  

Background: Brachiaria spp. is the main pasture for ruminant productions in Brazil, but the limiting factor for its use is the toxicity due to the presence of steroidal saponins. Chronic ingestion of Brachiaria spp. by cattle may cause liver changes such as fibrosis, bile duct proliferation and clusters of foamy macrophages in the hepatic parenchyma. The main objective of the present study was to evaluate the most frequent histological changes and their frequencies in livers collected in abattoirs in Brazil from beef cattle raised exclusively on Brachiaria spp. and compare them with those observed in animals kept in Andropogon spp. grass and native pastures in Rio Grande do Sul.Materials, Methods & Results: Liver samples without macroscopic changes were collected in abattoirs from 561 healthy Nelore and Nelore crossbred cattle raised in Brachiaria spp. pastures from Mato Grosso (MT), Mato Grosso do Sul (MS), Minas Gerais (MG) and Pará (PA) States. Liver samples from 84 Angus cattle (Bos taurus) kept on native pastures in Rio Grande do Sul (RS) and from 60 Nelore and Nelore crossbreed cattle raised in Andropogon spp. pastures in Tocantins State (TO) were collected as control. Semi-quantitative analysis of the histopathological changes were proceeded: (-) = no change; (+) = slight or discreet change; (++) = moderate change and (+++) = marked change. The main histopathological changes evaluted in the liver samples were the presence of foamy macrophages and its location, parenchymal fibrosis and its location, proliferation of bile ducts, periportal mononuclear infiltrate, presence of crystals in macrophages and within the bile ducts. Foamy macrophages clusters in the liver parenchyma were the most frequent histological changes exclusively observed in samples of animals kept in Brachiaria spp. and it was more frequent in cattle from MS State (P < 0.0001). The periportal hepatic fibrosis was another relevant finding in cattle kept in Brachiaria spp. and was also more frequent in MS animals (P ≤ 0.0001), and was not present in control groups. Proliferation of the bile ducts rate was similar between animals raised in Brachiaria spp. (P > 0.05), though it was higher in cattle kept on native pasture in RS (P < 0.0001). The mononuclear periportal inflammatory infiltrate was more frequent in MS and MG samples than in MT and PA (P < 0.0002).Discussion: The most significant histopathological changes observed in liver samples of cattle from the states of MT, MS, PA and MG kept in Brachiaria spp. pastures from the birth to slaughter, was the presence of foamy macrophages in quantities and variables distribution showing the strengthen association between clusters of foamy macrophages in the liver parenchyma and grazing on this grass. These macrophages could be found in healthy animals kept in Brachiaria spp. pastures and in intoxicated animals. This change was considered frequent and characteristic in animals kept in pastures containing steroidal lithogenic saponins in its composition, and it was frequently observed in ruminants that growed in Brachiaria spp. pastures. Beef cattle kept in Andropogon spp. grass pastures in the state of Tocantins and native pastures in Rio Grande do Sul did not showed foamy macrophages in liver samples. On the other hand, in susceptible sheep kept in Andropogon spp. grass pastures that  contains low amount of lithogenic steroidal saponins, are insufficient to induce toxicity and morphological changes in the liver, including aggregates of foamy macrophages.


2009 ◽  
Vol 63 (1-2) ◽  
pp. 103-112 ◽  
Author(s):  
Branislav Kureljusic ◽  
Darko Marinkovic ◽  
Jelena Obadovic ◽  
Milena Djordjevic ◽  
Vladimir Kukolj

Histological analysis was performed on the liver of 27 cats of different breeds, age and sex, autopsied at the Department of Pathological Morphology of the Faculty of Veterinary Medicine of the University of Belgrade, and findings showed lymphoplasmocytic cholangiohepatitis, different degrees of fibrosis, passive hyperemia, fatty changes, cholestase, and neoplasms. The mentioned entities occurred very rarely as individual morphological manifestations, because the liver has different functions so that one morphological change often causes others to follow. Thus, for example, fibrosis was often followed by intrahepatic cholestase. Histopathological evaluation of liver disease is important not only in the autopsied samples, but also in diagnostics of liver diseases, in samples obtained by biopsy, which is important for making a precise diagnosis. The interpretation of the established histological changes in the liver requires close cooperation between clinicians and pathologists, because the final diagnosis is made on the grounds of morphological, biochemical and clinical findings.


2011 ◽  
Vol 3 (2) ◽  
pp. 329-339
Author(s):  
Animesh K. Mohapatra ◽  
Deepika Rai ◽  
Anika Tyagi

The present study was carried out to investigate the effect of arsenic trioxide on the DNA and histomorphology of testis, liver and kidney of Swiss albino mice, Mus musculus. Oral administration of arsenic trioxide induced DNA damage in the testis, liver and kidney marked by light pink staining of nuclei after Feulgen’s reaction with reduced fine chromatin. Simultaneously severe histological changes were noted like distortion of seminiferous tubules, disorganization of spermatogonia, spermatocytes and spermatids with cytoplasmic vacuolization and nuclear pycnosis in testis. There was almost disappearance of sinusoids due to disruption of hepatic plates, inflammatory cellular infiltration around central veins and cytoplasmic vacuolization in hepatocytes with large irregular nuclei in liver of treated mice. Disorganized glomeruli with distorted Bowman’s capsules and mild to severe multifocal cloudy and hydropic degeneration with necrosis of tubules were observed in the kidney of treated mice. Inference drawn from the study indicated that arsenic induced both genotoxic histotoxic lesions.


2020 ◽  
Vol 105 (105(810)) ◽  
pp. 103-107
Author(s):  
J. García-Fernández ◽  
M. M. García-Fernández ◽  
M. García-Fernández ◽  
C. J. Acal-González ◽  
R. García-del-Moral ◽  
...  

Objectives: The purpose of this study is to check whether there is or not a relationship between CoA density and different clinical parameters of the disease established. Compare the assessment of CoA with Hematoxylin-Eosin technique against PAS staining. It is also intended to check if it exists a relationship between hippocampal CoA density and Nestine overexpression. Methods: Histological analysis of 14 patients. For the counting of the CoA, raw scores were used interchangeably, as well as discretized values on a semi-quantitative scale according to Cherian et al. criteria. The modified Engel scale was used to measure post-surgical evolution. Results: The proportion of CoA in the hippocampus matches the proportion found in different studies: 64.3%. At α=0.05, there is significant evidence to observe that the counting is different depending on the type of staining used in the slides. The average number of CoA is higher with the PAS. It is seen that the density of CoA in the hippocampus and cortex is directly related to its density in parahypocampal structures. With regard to the relation between CoA density and age of onset, there are signs of significance. As well as in the post-surgical evolution. With regard to the duration of the crisis period, was found that both variables are independent. Finally, it is observed that there is a direct association between Nestine overexpression and hippocampal CoA density. Conclusion: In patients with Refractory Epilepsy (ER), CoA presence is commonly verified, with a better evaluation with PAS staining. Respectfully to the relation between CoA density and age of onset, there are signs of significance, as well as post-surgical evolution with the modified Engel scale. It would be convenient to continue with the investigations in this field to contrast the role of CoA in ER.


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