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Registros recuperados: 108
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131I-induced changes in rat thyroid gland function BJMBR
Torlak,V.; Zemunik,T.; Modun,D.; Capkun,V.; Pesutic-Pisac,V.; Markotic,A.; Pavela-Vrancic,M.; Stanicic,A..
Therapeutic doses of 131I administered to thyrotoxic patients may cause thyroid failure. The present study used a rat model to determine thyroid function after the administration of different doses of 131I (64-277 µCi). Thirty male Fisher rats in the experimental group and 30 in the control group (untreated) were followed for 6 months. The animals were 4 months old at the beginning of the experiment and were sacrificed at an age of 9 months. Hormone concentration was determined before 131I administration (4-month-old animals) and three times following 131I administration, when the animals were 7, 8, and 9 months old. The thyroid glands were removed and weighed, their volume was determined and histopathological examination was performed at the end of the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Thyroid gland; 131I; Hormones; Histopathology; T3; T4; TSH.
Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2007000800009
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An infection of Ruditapes decussatus (Bivalvia) by Rickettsia ArchiMer
Mialhe, Eric; Chagot, Dominique; Boulo, Viviane; Comps, Michel; Ruano, Francisco; Grizel, Henri.
The authors report the presence of a Rickettsia in Ruditapes decussatus from natural populations of the Algarve (Portugal). Light microscopic shows infections of varying importance in gill tissues. Some enclose small procaryotic colonies (cp) scattered in all lamellae; in others, the colonies are scarce and hypertrophic (100 mu m). These different pictures suggest an amplification process. Digestive diverticulae may also be infected, but to a lesser extent. The ultrastructural features of this intravacuolar (mvd: densified vacuolar membrane) procaryote (P) and its multiplication by scission without a complex developmental cycle allows its classification in the order Rickettsiales.
Tipo: Text Palavras-chave: Ruditapes philippinarum; Pathogens; Histopathology; Pathology.
Ano: 1987 URL: http://archimer.ifremer.fr/doc/1987/acte-3107.pdf
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An unusual case of ectopic tungiasis with pseudoepitheliomatous hyperplasia BJID
Heukelbach,J.; Sahebali,S.; Van Marck,E.; Sabóia Moura,R.C.; Feldmeier,H..
Tungiasis is caused by the penetration of the female sand flea Tunga penetrans into the epidermis, and subsequent hypertrophy of the parasite. In most cases lesions are confined to the feet. During a cross-sectional study, an unusual case of ectopic tungiasis in the inguinal area was detected. Histological examination of tissue samples showed a remarkable pseudoepitheliomatous aspect of the epidermis. Clinical features and differential diagnoses are discussed.
Tipo: Info:eu-repo/semantics/report Palavras-chave: Ectoparasite; Tunga penetrans; Tungiasis; Ectopic localization; Histopathology; Brazil.
Ano: 2004 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702004000600012
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Antifibrotic effects of total or partial application of amniotic membrane in hepatic fibrosis Anais da ABC (AABC)
MAMEDE,KARINA M.; SANT’ANNA,LUCIANA B..
Abstract: Liver fibrosis is the final common pathway of chronic liver diseases, having cirrhosis as a possible progression, which has liver transplantation as the only effective treatment. Human amniotic membrane represents a potential strategy as a therapy for liver fibrosis, due to its anti-inflammatory, anti-fibrotic and immunomodulatory properties. The aim of this study was to evaluate amniotic membrane effects as a treatment for hepatic fibrosis induced in rats by bile duct ligation (BDL), verifying alterations between two different forms of amniotic membrane application, around all the lobes of the liver and around only one lobe of the liver. Two weeks after inducing fibrosis, an amniotic membrane fragment was applied to the surface of the liver,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Amniotic membrane; Histopathology; Immunohistochemistry; Liver fibrosis; Myofibroblasts.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652019000500702
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Appraisal of acute oral toxicity of glucuronoxylan hydrogel from Mimosa pudica seeds BJPS
Muhammad,Gulzar; Hussain*,Muhammad Ajaz; Ashraf,Muhammad Umer; Naeem-ul-Hassan,Muhammad; Bukhari,Syed Nasir Abbas.
Glucuronoxylan hydrogel (GXH) isolated from M. pudica seeds was assessed for acute toxicology in albino mice that were alienated into four groups. Three groups, i.e., II, III and IV received GXH at a dose of 1, 2 and 5 g/kg, respectively while group I was retained untreated and provided routine diet. After administering GXH, mice were examined for vomiting, diarrhea, allergy and tremors for 8 h. All animals were carefully observed for food and water consumption at 1, 2, 3, 7 and 14 day after administering GXH. At the end of studies, blood samples were drawn for investigation of hematological and biochemical parameters. All animals were sacrificed, relative body weight of vital organs was calculated and their histopathology was studied. It was concluded...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Glucuronoxylan; Acute toxicity; Histopathology; Toxicology; Mimosa pudica.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502018000300619
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Avaliação da virulência de isolados de Corynebacterium pseudotuberculosis em camundongos BALB/c Infoteca-e
ROSINHA, G. M. S.; MELO, P. R. de; SANTOS, L. R. dos; CARVALHO, C. E. G.; ALVARENGA, L. C. O.; ANDRADE, G. B.; SOARES, C. O..
Corynebacterium pseudotuberculosis é uma bactéria Gram-positiva, agente etiológico da linfadenite caseosa (LC) em pequenos ruminantes e causadora de piogranulomas, linfangite ulcerativa, mastite e dermatite ulcerativa em bovinos, que são doenças de grande relevância médica e veterinária. Esta doença é de difícil controle e a vacinação é a maneira mais eficiente de preveni-la nos rebanhos. Objetivou-se neste estudo selecionar cepas virulentas de C. pseudotuberculosis, a partir de cinco isolados obtidos de caprinos e ovinos, para uso em estudos de desafio em testes de novas vacinas contra linfadenite caseosa em camundongos. Primeiramente, os isolados foram caracterizados bioquimicamente com o kit API Coryne (APIbioMerieux, Inc., La Balme les Grottes, France)...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E) Palavras-chave: Corynebacterium Pseudotuberculosis; Histopatologia; Linfadenite Caseosa; Patogenicidade; Caseous lymphadenitis; Virulence; Histopathology.
Ano: 2018 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1106896
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Bartholin’s gland adenoma in a Saanen goat Ciência Rural
Moreira,Jessica Regina; Oliveira,Thalita Evani Silva de; Tongu,Eriky Akio de Oliveira; Leite,Raissa Oliveira; Nogueira,Geison Morel; Michelazzo,Mariana de Mello Zanim; Delfiol,Diego José Zanzarini; Saut,João Paulo Elsen; Headley,Selwyn Arlington.
ABSTRACT: Tumors affecting Bartholin’s gland are considered rare in human medicine; there are few reports in the veterinary literature, with descriptions occurring only in cows. This article described the clinical and pathological findings associated with Bartholin’s gland adenoma in a goat. Clinically, a 7-year-old pregnant Saanen goat presented bilateral enlargement of the vulva that did not regress spontaneously after parturition. Grossly, these vulvar masses were multilobulated, contained cystic areas from which oozed a whitish fluid. Histopathology revealed an adenoma characterized by the proliferation of irregularly shaped neoplastic epithelial cells that formed tubular to glandular-like structures. These neoplastic cells demonstrated moderate...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Histopathology; Ki-67 protein; Adenoma; Major vestibular glands.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782018000100501
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Bonamia sp. (Protozoa, Haplosporidia) parásito de Ostrea puelchana D’Orbigny, (Mollusca, Bivalvia) en el Golfo San Matías (Patagonia Argentina): Histopatología, identificación e infección OceanDocs
Kroeck, M.A..
Los moluscos bivalvos son organismos sedentarios que establecen una relación íntima no sólo entre ellos, sino también con el espacio que ocupan y con sus condiciones fisicoquímicas. Sus poblaciones pueden ser hospedadoras de múltiples organismos patógenos (virus,bacterias, hongos, protistas y metazoos), cuya presencia es regulada eficazmente a niveles infra, meta y suprapoblacionales en ambientes silvestres, no provocando, salvo excepcionalmente, impactos severos. Los cultivos a escala comercial producen concentraciones de individuos, con la consiguiente alteración del medio y del equilibrio natural en la relación parásito-hospedador, generándose condiciones apropiadas para el desarrollo de enfermedades. Entre los años 1995 y 1996 se instala, en la zona...
Tipo: Theses and Dissertations Palavras-chave: Fishery biology; Marine molluscs; Parasitology; Protozoan diseases; Histopathology; Spatial distribution; Environmental conditions; Methodology; Examinations.
Ano: 2005 URL: http://hdl.handle.net/1834/5244
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Bothrops alternatus ENVENOMING IN YOUNG DOGS J. Venom. Anim. Toxins
PEREZ,O. A. DE; KOSCINCZUK,P.; FLINTA,S. M.; MAIDANA,H. R.; SANCHEZ NEGRETTE,M..
Bothrops alternatus venom was intramuscularly inoculated (3 mg/kg) into 12 dogs, 30 to 65 days old. Spontaneous bleeding commenced twenty minutes later. Blood samples obtained 3 and 20 minutes after venom inoculation presented spontaneous clotting formation. Plasmatic fibrinogen decreased within 3 minutes. Partial thromboplastin time (PTT) and one-stage prothrombin time (PT) were found. Plasma did not coagulate 40 minutes after inoculation. Platelet counts did not vary but their function was altered. Histopathology pointed out severe muscular necrosis and massive hemorrhage in the inoculation area. Regional ganglia showed intense hemorrhage. The 45 and 65-day-old animals showed alveolar thickening of the septum and generalized congestion, but the...
Tipo: Info:eu-repo/semantics/other Palavras-chave: Dogs; Bothrops alternatus; Coagulation; Histopathology.
Ano: 1997 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0104-79301997000100006
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Canine visceral leishmaniasis: a remarkable histopathological picture of one asymptomatic animal reported from Belo Horizonte, Minas Gerais, Brazil Arq. Bras. Med. Vet. Zootec.
Xavier,S.C.; Chiarelli,I.M.; Lima,W.G.; Gonçalves,R.; Tafuri,W.L..
A remarkable histopathological picture of one asymptomatic dog naturally infected with Leishmania infantum (syn. chagasi) has been presented. Intracellular parasites were ease found in macrophages of all exanimated organs, especially in skin. Embedded paraffin tissues of liver, spleen, axillary and popliteal lymph nodes, and skin (ear, muzzle and abdomen) were stained by hematoxylin and eosin and by immunocytochemical reaction (streptoavidin-peroxidase method) to detect parasites. All organs showed an intense parasitism associated to severe pathological changes. All lymph nodes had conspicuous histological architecture alterations. Lymphocytes were replaced by macrophages stuffed with an intense number of amastigotes forms of Leishmania. The lymphoid...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Dog; Leishmania infantum; Histopathology.
Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352006000600004
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Clostridium perfringens types A and D associated with enterotoxemia in an 18-month-old goat J. Venom. Anim. Toxins incl. Trop. Dis.
Miyashiro,S.; Nassar,A. F. C.; Del Fava,C.; Cabral,A. D.; Silva,M..
Postmortem examination of a Boer buck that died peracutely revealed bowel and liver diffusely congested and edematous. Kidney was apparently edematous. Clostridium perfringens type A was isolated from bowel and type D from kidney. Microscopic examination revealed large areas of necrosis in the renal cortex and medulla (pulpy kidney disease), hyperemia and centrilobular necrosis of the liver, necrosis of the small-intestine wall, pulmonary edema and congestion, intense hyperemia of the cerebellum, hyperemia and edema of the brain.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Goats; Enterotoxemia; Pulpy kidney disease; Clostridium perfringens type A; Clostridium perfringens type D; Histopathology.
Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992007000400017
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Comparative evaluation of the susceptibility of cultivated fishes to the natural infection with myxosporean parasites and tissue changes in the host BJB
MARTINS,M. L.; SOUZA,V. N. de; MORAES,J. R. E. de; MORAES,F. R. de; COSTA,A. J. da.
The purpose of the study was to evaluate the susceptibility of 4 important cultivated fishes to sporozoan parasites. Fishes were collected bimonthly from a pond for a period of 1 year. Myxobolus colossomatis and Henneguya piaractus were found in the internal organs and gills, respectively. The combined incidence of parasitism by both myxozoa was 97.3% in pacu (Piaractus mesopotamicus), 33.3% in hybrid tambacu (Piaractus mesopotamicus x Colossoma macropomum), 5.6% in tambaqui (Colossoma macropomum) and 0% in carp (Cyprinus carpio). Pacu was the most susceptible fish and was parasitized 79.2% in the gills, 66.7% in the kidney and 50% in the spleen. Histopathological evaluation of the gills showed hemorrhages, inflammatory reaction with mononuclear cells and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Myxozoa; Susceptibility; Histopathology; Cultivated fish.
Ano: 1999 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0034-71081999000200010
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Comparative study of histopathology and immunohistochemistry of indefinite round cell cutaneous tumors and characterization of canine lymphoma Arq. Bras. Med. Vet. Zootec.
Machado,L.H.A.; Palumbo,M.I.P.; Zahn,F.S.; Amorim,R.L.; Farias,M.R.; Werner,J.; Torres Neto,R.; Rodrigues,J.C.; Oliveira,F.C..
With the purpose of shedding light on some doubts in veterinary oncology, the present article intends to compare the results of histopathological and immunohistochemical examinations of unspecific round cell neoplasia, to realize immunophenotyping of canine lymphoma cases, to establish the T or B origin of neoplastic cells, and to determine the degree of proliferation and apoptosis of lymphomas by immunohistochemistry. Of 11 animals presenting immunohistochemical diagnosis of lymphoma, five had been diagnosed as Lymphoma by HE staining of histopathological slides and six had been classified as unspecific round cell neoplasia. All cases submitted to immunohistochemical examination were T-cell lymphomas. There was a positive correlation between cell...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Dog; Histopathology; Immunohistochemistry; Round cell neoplasia; Lymphoma.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352015000100032
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Comparison of the effects of the dietary addition of two lactic acid bacteria on the development and conformation of sea bass larvae, Dicentrarchus labrax, and the influence on associated microbiota ArchiMer
Lamari, Faouzi; Castex, Mathieu; Larcher, Thibaut; Ledevin, Mireille; Mazurais, David; Bakhrouf, Amina; Gatesoupe, Joel.
Probiotics may have many effects on health and development of fish larvae. One of the most promising is related to spinal conformation, though the mode of action is not clearly understood. The present study attempted to investigate the effects of two strains of lactic acid bacteria on associated microbiota, histological development and gene expression. Sea bass larvae were fed since 5 dph (day post hatch) with either a standard control diet (Diet C), or the same diet supplemented with Pediococcus acidilactici MA18/5M (Diet P), or with an autochthonous strain of Lactobacillus casei (X2; Diet L). The two lactic acid bacteria were incorporated in the diets at the levels of 106 and 107 CFU (colony forming units) g-1 in two consecutive experiments,...
Tipo: Text Palavras-chave: Fish larvae; Probiotics; Microbiota; Histopathology; Gene expression; DGGE.
Ano: 2013 URL: http://archimer.ifremer.fr/doc/00108/21966/19673.pdf
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Constitutional and somatic methylation status of DMRH19 and KvDMR in Wilms tumor patients Genet. Mol. Biol.
Cardoso,Leila C.A.; Castaño,Jair A. Tenorio; Pereira,Hanna S.; Lima,Maria Angélica de F.D.; Santos,Anna Cláudia E. dos; Faria,Paulo S. de; Ferman,Sima; Seuánez,Héctor N.; Nevado,Julián B.; Almeida,José Carlos Cabral de; Lapunzina,Pablo; Vargas,Fernando R..
The most frequent epigenetic alterations in Wilms tumor (WT) occur at WT2, assigned to 11p15. WT2 consists of two domains: telomeric domain 1 (DMRH19) that contains the IGF2 gene and an imprinted maternally expressed transcript (H19) and centromeric domain 2 (KvDMR) that contains the genes KCNQ1, KCNQ1OT1 and CDKN1C. In this work, we used pyrosequencing and MS-MLPA to compare the methylation patterns of DMRH19/KvDMR in blood and tumor samples from 40 WT patients. Normal constitutional KvDMR methylation indicated that most of the epigenetic alterations in WT occur at DMRH19. Constitutional DMRH19 hypermethylation (HM DMRH19) was observed in two patients with Beckwith-Wiedemann syndrome. Pyrosequencing and MS-MLPA showed HM DMRH19 in 28/34 tumor samples:...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Epigenetic; Histopathology; Methylation; MS-MLPA; Pyrosequencing.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572012000500002
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Diagnosis to Detect Porcine Transmissible Gastroenteritis Virus (TGEV) by Optical and Transmission Electron Microscopy Techniques International Journal of Morphology
Martins,A. M. C. R. P. F; Bersano,J. G; Ogata,R; Amante,G; Nastari,B. D. B; Catroxo,M. H. B.
The porcine transmissible gastroenteritis is a highly severe contagious disease, caused by virus of the Coronaviridae family, genus Coronavirus. Its epizootic shape can reach a rate of up to 100% mortality in piglets under two weeks of age as a result of severe dehydration. In this study fragments of small intestine and stool samples were collected from 75 autopsied pigs from properties. The samples of the fragments were frozen and sent to the Laboratory of Electron Microscopy, Instituto Biológico, SP, Brazil, for histological and transmission electron microscopic analyses. According to histological H&E technique, atrophy, villous necrosis and destruction of the enterocytes were observed in 35 (46.6%) out of the 75 fragments of the small intestine...
Tipo: Journal article Palavras-chave: Porcine Transmissible Gastroenteritis; Coronavirus; Histopathology; Transmission Electron Microscopy.
Ano: 2013 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022013000200059
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Early embryonic death in mares: clinical and hormonal aspects Braz. J. Vet. Res. Anim. Sci.
PAPA,Frederico Ozanam; LOPES,Maria Denise; ALVARENGA,Marco Antonio; MEIRA,Cezinande de; LUVIZOTTO,Maria Cecília Rui; LANGONI,Hélio; RIBEIRO,Erley Felix; AZEDO,Antonio Esteves; BOMFIM,Antonio Carlos de Miranda.
The present study aimed to diagnose early embryonic death in 128 mares. Blood samples were collected at the 4th, 7th, 10th, 13th, 16th, 19th, 21st and 30th day after ovulation and the diameter of the corpus luteum was measured. The diameter and characteristics of the embryonic vesicle were evaluated by ultrasonography. Microbiology, cytology and histopathology were carried out in mares with embryonic death. Plasma oestrogen and progesterone concentration were measured by radioimmunoassay. From 128 mares, 17 (13.28%) showed early embryonic death. The embryonic losses took place at 19 days of pregnancy in 47.05% and at 21 days of pregnancy in 29.4% of the mares. The diameter of the corpus luteum in the mares that maintained pregnancy was similar to those...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Embryo mortality; Progesterone; Estrogen; Histopathology; Equine.
Ano: 1998 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-95961998000400005
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Efectos del parasitismo sobre el tejido branquial en peces cultivados: estudio parasitologico e histopatologico Zoologia
Martins,Maurício Laterça; Romero,Nicolás Garcia.
One hundred four out of 225 diagnosticated cases were myxosporidian, monogenean, Ichthyophthirius multifiliis Fouquet, 1876 and bacterial diseases in Piaractus mesopotamicus Holmberg, 1887 (pacu), Colossoma macropomum Cuvier, 1818 (tambaqui) and tambacu, at Aquaculture Center, Universidade Estadual Paulista (UNESP), Jaboticabal, São Paulo, Brazil, between 1992 and 1995. The gills were fixed in 10% buffered formalin solution to posterior histologic routine. It was observed Henneguya sp. cysts into the capillaries of the secondary lamellae, encapsulated by the respiratory epithelium cells. It provoked adherence of the adjacent lamellae, hyperplasia, congestion, oedema and epithelium displacement. Monogeneans infestations by Anacanthorus penilabiatus Boeger,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Protozoa; Monogenea; Histopathology; Brazilian fish.
Ano: 1996 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000200017
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Effect of 0.25 ppm Ozone exposure on pulmonary damage induced by bleomycin Biol. Res.
OYARZÚN,MANUEL; DUSSAUBAT,NELSON; GONZÁLEZ,SERGIO.
To study the effect of ozone in a chronically damaged lung, we used a bleomycin (BLM) induced pulmonary fibrosis model. Both endotracheal instillation of BLM and O3 exposure both produce lung inflammation and fibrosis. Oxidative stress would be a common mechanism of damage for both BLM and O3. Our aim was to assess lung injury induced by 5 and 60 days of intermittent exposure to 0.25 ppm O3 in rats with bleomycin-induced pulmonary fibrosis. Thirty-day-old Sprague Dawley rats were endotracheally instilled with BLM (1 U/100 g body weight) and, 30 days later, exposed to 0.25 ppm O3 (0.25 ppm 4 h per day, 5 days a week). Histopatology controls were instilled with saline and breathing room air. Histopathological evaluation of lungs was done 5 and 60 days after...
Tipo: Journal article Palavras-chave: Bleomycin; Histopathology; Lung damage; Ozone exposure.
Ano: 2005 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602005000400007
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Effect of fish meal replacement by plant protein sources on non-specific defence mechanisms and oxidative stress in gilthead sea bream (Sparus aurata) ArchiMer
Sitja Bobadilla, A; Pena Llopis, S; Gomez Requeni, P; Medale, Francoise; Kaushik, Sadasivam; Perez Sanchez, J.
Partial or total replacement of fish meal by a mixture of plant protein (PP) sources (corn gluten, wheat gluten, extruded peas, rapeseed meal and sweet white lupin) balanced with indispensable amino acids was examined in juvenile gilthead sea bream over the course of a 6-month growth trial. A diet with fish meal (FM) as the sole protein source was compared to diets with 50%, 75% and 100% of replacement (PP50, PP75, and PP100). The possible influence of diets on growth performance, plasma metabolites, gut integrity, liver structure, anti-oxidant and immune status was evaluated. Final body weight was progressively decreased with PP inclusion, but in PP50 and PP75-fed fish, feed efficiency (FE) was significantly improved and specific growth rates remained...
Tipo: Text Palavras-chave: Gilthead sea bream; Cholesterol; Glutathione; Histopathology; Myeloperoxidase; Complement; Lysozyme; Respiratory burst; Immune response; Growth; Plant proteins; Fish meal.
Ano: 2005 URL: http://archimer.ifremer.fr/doc/2005/publication-3595.pdf
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