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Primary non-metastatic omental myofibrosarcoma in a horse
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Cocco, M.

; Lorga, A.D.

; Ferreira, A.A.

; Ribeiro Filho, P.A.R.

; Teixeira, W.T.

; Castro, J.L.C.

; Souza, R.S.

; Dornbusch, P.T.

Arquivo Brasileiro de Medicina Veterinária e Zootecnia

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jun 2022, Volume 74 N. 3 Pages 514 - 518

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

RESUMO O miofibrossarcoma em cavalos é um raro tumor maligno, composto predominantemente por miofibroblastos. Um equino, de 15 anos de idade, foi encaminhado ao Hospital Veterinário da Universidade Federal do Paraná, para avaliação de sinais de cólica. O exame clínico inicial apresentou mucosas ictéricas e, nos exames laboratoriais, revelou anemia e aumento sérico de ALT, GGT, ALP e bilirrubina. Na laparotomia exploratória, observou-se massa abdominal vascularizada de aproximadamente 50cm x 45cm x 30cm na região do hipocôndrio esquerdo e aderida às estruturas circunvizinhas. Devido ao tamanho e às aderências ao omento, a massa foi considerada irressecável cirurgicamente, portanto foi realizada a eutanásia e a necropsia. Os resultados imuno-histoquímicos e morfológicos indicam o diagnóstico de miofibrossarcoma, visto que as células neoplásicas imunoexpressaram Vimentin, HHF35 e S100. Portanto, esse é o primeiro caso em equinos de miofibrossarcoma omental descrito na literatura.

ABSTRACT Myofibrosarcoma in horses is a rare malignant tumor composed predominantly by myofibroblasts. A 15-year-old horse was referred to the Veterinary Hospital of the Federal University of Parana for evaluation of colic signs. Initial physical examination showed icteric mucous membrane and laboratory analysis found anemia, increased serum activity of ALT, GGT, ALP, and bilirubin. In the exploratory laparotomy a highly vascularized abdominal mass in the left hypochondrium region of approximately 50cm x 45cm x 30cm, adhered to the surrounding structures was observed. Due to the size and adhesions to the omentum, the mass was considered surgically unresectable, and euthanasia was performed followed by necropsy. The immunohistochemical and morphological results indicate the diagnosis of myofibrosarcoma since the neoplastic cells immunoexpressed Vimentin, HHF35 and S100. To the authors’ knowledge, this is the first equine case of omental myofibrosarcoma described in the literature.

https://doi.org/10.1590/1678-4162-12503

Steinernema diaprepesi Nguyen & Duncan (Rhabditida: Steinernematidae), a new entomopathogenic nematode from Brazil
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HORTA, ANDRÉ B.

; DAMASCENA, ALIXELHE P.

; CARVALHO, VANESSA R. DE

; RIBEIRO, MURILO F.

; CASTRO, BÁRBARA M.C.

; WILCKEN, CARLOS F.

; ZANUNCIO, JOSÉ C.

; WILCKEN, SILVIA R.S.

Anais da Academia Brasileira de Ciências

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2021, Volume 93 N. 4 elocation e20190943

Abstract: En | Text: En | PDF: En

Abstract Entomopathogenic nematodes (EPNs) can control pests due to their mutual association with bacteria. The use of these biological control agents is increasing worldwide due to advances in research about its control efficiency, range of action and mass production. The identification of EPNs adapted to specific environmental and climatic conditions is important for sustainable pest suppression in integrated management (IPM) programs. The objective is to report, for the first time, the occurrence of the Steinernema diaprepesi in Brazil. Steel mesh traps with Galleria mellonella Linnaeus (Lepidoptera: Pyralidae) larvae were buried in red latosol cultivated with Eucalyptus. Infective juveniles (IJs) were isolated from dead larvae and multiplied in healthy ones of this host to confirm its pathogenicity and to start a laboratory population from the strain found in the field. The DNA of the IJs was extracted and amplified using PCR technique with the universal primers D2A and D3B. The detection of S. diaprepesi is the first report of this nematode in Brazil, increasing the knowledge about its distribution in the world and the diversity of EPNs that must be considered as agents of biological pest control in the country.

https://doi.org/10.1590/0001-3765202120190943 79 downloads

Influence of seasonality on the physiological and seminal parameters of buffaloes in the western region of Pará1
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Castro, Sâmia R.S.

; Rebelo, Leticia S.

; Fernandes Junior, Onildo S.

; Belo-Reis, Alessandra S.

; Neves, Kedson A.L.

; Silva, Welligton C.

; Morini, Adriana C.

; Vale, William G.

Pesquisa Veterinária Brasileira

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dec 2020, Volume 40 N. 12 Pages 1048 - 1053

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

RESUMO: O conhecimento das alterações fisiológicas que ocorrem quando os animais são submetidos a alterações climatológicas consideradas estressantes é fundamental para manter o bem-estar animal, e poder explorar o seu potencial reprodutivo de forma eficiente e racional. O presente estudo foi realizado com o objetivo de avaliar a influência de variáveis climáticas sobre parâmetros fisiológicos e de ejaculados de búfalos, da raça Murrah, criados em clima tropical úmido da Amazônia. As análises imediatas pertinentes às características físicas e morfológicas dos ejaculados foram realizadas e corresponderam no período chuvoso (PCh) o volume de 3,4±2,0mL, turbilhonamento de 4,4±0,5; motilidade de 80,4±5,6%; vigor de 4,4±0,4; concentração de 657.300±237.865,1 x 106sptz/mL; defeitos maiores de 9,0±2,6%; defeitos menores de 11,2±3,9%; defeitos totais de 20,2±5,3% e integridade da membrana plasmática (IMP) de 84,8±5,6%, enquanto que no período não chuvoso (PnCh), os resultados foram de 4,0±2,1mL; turbilhonamento de 3,0±1,0; motilidade de 56,2±13,4%; vigor de 3,0±1,0; concentração de 586.000±291.925,9 x 106sptz/mL; defeitos maiores de 20,8±9,9%; defeitos menores de 27,5±6,3%; defeitos totais de 48,3±9,3% e IMP de 57,9±12,4%. Observou-se diferença estatística (P<0,05) para os parâmetros movimento de massa, motilidade, vigor, defeitos maiores, defeitos menores, defeitos totais e integridade da membrana plasmática entre os dois períodos. Dados de frequência cardíaca, temperatura superficial (cabeça, dorso, virilha e bolsa escrotal) diferiram estatisticamente entre os períodos (P<0,05). Conclui-se que se faz necessário usar de um manejo específico no período não chuvoso para que o estresse térmico não seja um fator determinante na redução da qualidade reprodutiva dos búfalos, para isto se faz necessário utilizar de meios para melhorar o bem-estar animal, sendo uma das alternativas fazer uso de banhos regularmente para estes animais, ou disponibilizar acesso constante destes a áreas de rios ou lagos, assim como sombreamentos, evitando que os búfalos fiquem expostos diretamente ao ambiente térmico desfavorável.

ABSTRACT: Awareness of the physiological changes that occur when animals are subjected to climatic changes that are considered stressful is essential to maintain animal welfare and to be able to exploit their reproductive potential efficiently and rationally. The present study was carried out to evaluate climatic variables’ influence on physiological parameters, and Murrah buffalo ejaculates reared in a humid tropical climate in the Amazon. The immediate analyzes pertinent to the physical and morphological characteristics of the ejaculates were carried out and corresponded in the rainy season (RS) volume of 3.4±2.0mL; the mass activity of 4.4±0.5; motility of 80.4±5.6%; vigor of 4.4±0.4; concentration of 657,300±237,865.1 x 106sptz/mL; major defects of 9.0±2.6%; minor defects of 11.2±3.9%; total defects 20.2±5.3% and sperm plasma membrane integrity (SPMI) 84.8±5.6%, whereas in the non-rainy season (nRS), the results were 4.0±2.1mL; the mass activity of 3.0±1.0; motility of 56.2±13.4%; vigor of 3.0±1.0; concentration of 586,000±291,925.9 x 106sptz/mL; major defects of 20.8±9.9%; minor defects of 27.5±6.3%; total defects 48.3±9.3% and SPMI of 57.9±12.4%. Furthermore, a statistical difference (P<0.05) was observed for the parameters mass activity, motility, vigor, major defects, minor defects, total defects, and sperm plasma membrane integrity between both periods. The data on heart frequency, superficial temperature (head, back, groin, and scrotal pouch) showed a statistical difference between both periods (P<0.05). To conclude is necessary specific management in the non-rainy season that thermal stress is not a determining factor in reducing the reproductive quality of buffaloes; it is necessary to use means to improve animal welfare; one alternative is to use baths regularly for these animals or provide constant access to areas of rivers or lakes, as well as shading, preventing the buffaloes from being directly exposed to the unfavorable thermal environment.

https://doi.org/10.1590/1678-5150-pvb-6716 250 downloads

Aspergilose sistêmica em um cavalo - relato de caso
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Busato, E.M.

; Meirelles, J.R.S.

; Castro, M.L.

; Abreu, A.C.M.R.

; Sousa, R.S.

; Brum, J.S.

; Dornbusch, P.T.

Arquivo Brasileiro de Medicina Veterinária e Zootecnia

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jan 2020, Volume 72 N. 1 Pages 65 - 70

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

RESUMO O presente trabalho relata o caso de aspergilose sistêmica em um cavalo da raça Quarto de Milha. O animal apresentava quadro de emagrecimento progressivo e alopecia. Os parâmetros avaliados durante o exame clínico encontravam-se de acordo com os valores normais para a espécie. No hemograma verificou-se leucocitose por neutrofilia, sem desvio à esquerda, proteínas plasmáticas totais elevadas e aumento do fibrinogênio, indicando um processo inflamatório acompanhado de desidratação. Os exames bioquímicos séricos demonstraram aumento no valor da ureia. Apesar dos exames realizados e da terapia instituída com antibióticos de amplo espectro e suporte nutricional, após 51 dias de internamento o quadro clínico evoluiu para caquexia e decúbito permanente do paciente, o qual foi submetido à eutanásia seguida de necropsia. Com base nos achados nos exames necroscópico e histopatológico, diagnosticou-se infecção sistêmica por Aspergillus sp., acometendo pulmões, fígado, rins, peritônio parietal e encéfalo. Dentre os fatores predisponentes à relatada infecção fúngica sistêmica, destaca-se o status imunológico debilitado do paciente, possivelmente proporcionado por tratamentos prolongados com antibióticos e anti-inflamatórios esteroidais. O presente trabalho relata o primeiro caso descrito de arpergilose sistêmica no Brasil. O diagnóstico definitivo só foi possível após necropsia e histopatologia, visto que os sinais clínicos inespecíficos não foram determinantes para o diagnóstico em vida.

ABSTRACT This paper reports the case of systemic aspergillosis on a Quarter Horse. The animal had progressive weight loss and alopecia. The parameters evaluated during the clinical examination were in agreement with the normal values for the species. The hemogram showed neutrophilic leukocytosis, without left-sided, elevated total plasma proteins and an increase in fibrinogen, indicating an inflammatory process accompanied by dehydration. Serum biochemical tests showed an increase in the value of urea. Despite the performed tests and established therapy with broad spectrum antibiotics and nutritional support, after 51 days of hospitalization the clinical condition evolved into cachexia and permanent decubitus of the patient which underwent to euthanasia and necropsy. From the findings of necropsy and histopathology, systemic infection was diagnosed by Aspergillus sp., affecting the lungs, liver, kidneys, parietal peritoneum and encephalon. Among the factors predisposing to the reported systemic fungal infection, the patient's weakened immune status is highlighted, possibly due to prolonged antibiotic and steroidal anti-inflammatory treatments. This paper reports the first case described of systemic aspergillosis in Brazil. Definitive diagnosis was only possible after necropsy and histopathology, since nonspecific clinical signs were not determinant for the diagnosis in life.

https://doi.org/10.1590/1678-4162-10600 1703 downloads

Study of major genetic factors involved in pituitary tumorigenesis and their impact on clinical and biological characteristics of sporadic somatotropinomas and non-functioning pituitary adenomas
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Foltran, R.K.

; Amorim, P.V.G.H.

; Duarte, F.H.

; Grande, I.P.P.

; Freire, A.C.T.B.

; Frassetto, F.P.

; Dettoni, J.B.

; Alves, V.A.

; Castro, I.

; Trarbach, E.B.

; Bronstein, M.D.

; Jallad, R.S.

Brazilian Journal of Medical and Biological Research

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2018, Volume 51 N. 9 elocation e7427

Abstract: En | Text: En | PDF: En

Genetic and functional aberrations of guanine nucleotide-binding protein, alpha stimulating (GNAS), aryl hydrocarbon receptor interacting protein (AIP), and pituitary tumor transforming gene (PTTG) are among the most prominent events in pituitary tumorigenesis. A cohort of Brazilian patients with somatotropinomas (n=41) and non-functioning pituitary adenomas (NFPA, n=21) from a single tertiary-referral center were evaluated for GNAS and AIP mutations and gene expression of AIP and PTTG. Results were compared to the clinical and biological (Ki67 and p53 expression) characteristics of tumors and their response to therapy, if applicable. Genetic analysis revealed that 27% of somatotropinomas and 4.8% of NFPA harbored GNAS mutations (P=0.05). However, no differences were observed in clinical characteristics, tumor extension, response to somatostatin analog therapy, hormonal/surgical remission rates, Ki67 index, and p53 expression between mutated and non-mutated somatotropinomas patients. PTTG overexpression (RQ mean=10.6, min=4.39, max=11.9) and AIP underexpression (RQ mean=0.56, min=0.46-max=0.92) were found in virtually all cases without a statistically significant relationship with clinical and biological tumor features. No patients exhibited somatic or germline pathogenic AIP mutations. In conclusion, mutations in GNAS and abnormal PTTG and AIP expression had no impact on tumor features and treatment outcomes in this cohort. Our data support some previous studies and point to the need for further investigations, probably involving epigenetic and transcriptome analysis, to improve our understanding of pituitary tumor behavior.

https://doi.org/10.1590/1414-431x20187427 954 downloads

Compressão de medula espinhal ocasionada por melanoma em cavalo de pelagem castanha
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Busato, E.M.

; Sousa, R.S.

; Silva-Meirelles, J.R.

; Castro, M.L.

; Deconto, I.

; Dornbusch, P.T.

Arquivo Brasileiro de Medicina Veterinária e Zootecnia

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oct 2017, Volume 69 N. 5 Pages 1346 - 1350

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

ABSTRACT This paper describes a case of malignant melanoma in brown coat horse, which had ataxia and proprioceptive deficits in hind limbs, progressing to permanent decubitus. The animal was euthanized and the final diagnosis was based on necropsy and histopathology. At necropsy different masses and / or nodules in skeletal muscle, bone, abdominal cavity, lungs, heart, spleen, liver, adrenal gland, lymph nodes, brain and cerebellum were found. Neurological clinical signs presented by the animal were justified by spinal cord compression caused by melanocytic mass invading the medullary canal of the flow segment of the thoracic spine (between 15th and 18th thoracic vertebrae). This is the first case report of melanoma leading to spinal cord compression in a non-gray horse. Thus, it is important to include this neoplasm in the differential diagnosis list of cutaneous and subcutaneous masses and / or nodules, and in suspected cases of spinal cord compression in horses of any coat.

https://doi.org/10.1590/1678-4162-9355 1466 downloads

Incidence of tuberculosis among patients with rheumatoid arthritis using TNF blockers in Brazil: data from the Brazilian Registry of Biological Therapies in Rheumatic Diseases (Registro Brasileiro de Monitoração de Terapias Biológicas - BiobadaBrasil)
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Yonekura, Claudia Leiko

; Oliveira, Rene Donizeti Ribeiro

; Titton, David C.

; Ranza, Roberto

; Ranzolin, Aline

; Hayata, André L.

; Duarte, Ângela

; Silveira, Inês G.

; Carvalho, Hellen M. da S. de

; Moraes, Júlio C. Bertacini de

; Abreu, Mirhelen Mendes de

; Valim, Valéria

; Bianchi, Washington

; Brenol, Claiton Viegas

; Pereira, Ivanio A.

; Costa, Izaias

; Macieira, José C.

; Miranda, José R.S.

; Guedes-Barbosa, Luiz S.

; Bertolo, Manoel B.

; Sauma, Maria Fátima Lobato da C.

; Silva, Marília B.G.

; Freire, Marlene

; Scheinberg, Morton A.

; Toledo, Roberto A.

; Oliveira, Sheila K.F.

; Fernandes, Vander

; Pinheiro, Marcelo M.

; Castro, Glaucio

; Vieira, Walber Pinto

; Baaklini, Cesar Emile

; Ruffino-Netto, Antonio

; Pinheiro, Geraldo da Rocha Castelar

; Laurindo, Ieda Maria Magalhães

; Louzada-Junior, Paulo

Revista Brasileira de Reumatologia

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2017, Volume 57 Suppl. 2 Pages s477 - s483

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

Resumo Objetivos Avaliar incidência de tuberculose e triagem para tuberculose latente em brasileiros com artrite reumatoide em uso de agentes biológicos na prática clinica. Pacientes e métodos Estudo de coorte com dados do Registro Brasileiro de Monitoração de Terapias Biológicas (BiobadaBrasil), de 01/2009 a 05/2013, abrangeu 1.552 tratamentos, 415 somente com drogas modificadoras do curso da doença (MMCDs) sintéticas, 942 MMCDs sintéticas em associação com anti-TNF (etanercepte, infliximabe, adalimumabe) e 195 MMCDs sintéticas em associação com outros biológicos (abatacepte, rituximabe e tocilizumabe). Avaliaram-se ocorrência de tuberculose, tempo de exposição às drogas e triagem para TB. Análise estatística: teste t não pareado e teste de Fisher bicaudal; p < 0,05. Resultados O tempo de exposição dos controles foi de 981 pacientes-ano, do grupo de anti-TNF foi de 1.744 pacientes-ano (adalimumabe = 676, infliximabe = 547 e etanercepte = 521 pacientes-ano) e o de outros biológicos de 336 pacientes-ano. A incidência de TB foi de 1,01/1.000 pacientes-ano nos controles e de 2,87 pacientes-ano nos usuários de anti-TNF (adalimumabe = 4,43/1.000 pacientes-ano; etanercepte = 1,92/1.000 pacientes-ano e infliximabe = 1,82/1.000 pacientes-ano). Não houve casos de tuberculose no grupo de outros biológicos. O tempo médio de exposição até a ocorrência de tuberculose foi de 27(11) meses para o grupo anti-TNF. Conclusões A incidência de tuberculose foi maior nos usuários de MMCDs sintéticas e anti-TNF do que nos usuários de MMCDs sintéticas e de MMCDs sintéticas e biológicos não anti-TNF, e também mais tardia, sugerindo infecção durante o tratamento, e não falha na triagem.

Abstract Objectives To assess the incidence of tuberculosis and to screen for latent tuberculosis infection among Brazilians with rheumatoid arthritis using biologics in clinical practice. Patients and methods This cohort study used data from the Brazilian Registry of Biological Therapies in Rheumatic Diseases (Registro Brasileiro de Monitoração de Terapias Biológicas - BiobadaBrasil), from 01/2009 to 05/2013, encompassing 1552 treatments, including 415 with only synthetic disease-modifying anti-rheumatic drugs, 942 synthetic DMARDs combined with anti-tumor necrosis factor (etanercept, infliximab, adalimumab) and 195 synthetic DMARDs combined with other biologics (abatacept, rituximab and tocilizumab). The occurrence of tuberculosis and the drug exposure time were assessed, and screening for tuberculosis was performed. Statistical analysis: Unpaired t-test and Fisher's two-tailed test; p < 0.05. Results The exposure times were 981 patient-years in the controls, 1744 patient-years in the anti-TNF group (adalimumab = 676, infliximab = 547 and etanercept = 521 patient-years) and 336 patient-years in the other biologics group. The incidence rates of tuberculosis were 1.01/1000 patient-years in the controls and 2.87 patient-years among anti-TNF users (adalimumab = 4.43/1000 patient-years; etanercept = 1.92/1000 patient-years and infliximab = 1.82/1000 patient-years). No cases of tuberculosis occurred in the other biologics group. The mean drug exposure time until the occurrence of tuberculosis was 27(11) months for the anti-TNF group. Conclusions The incidence of tuberculosis was higher among users of synthetic DMARDs and anti-TNF than among users of synthetic DMARDs and synthetic DMARDs and non-anti-TNF biologics and also occurred later, suggesting infection during treatment and no screening failure.

https://doi.org/10.1016/j.rbre.2017.05.005 3602 downloads

Infecção congênita em cabritos por Mycoplasma agalactiae
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Silva, N.S.

; Azevedo, E.O.

; Campos, A.C.

; Cordeiro, A.A.

; Mamede, A.G.

; Silva, R.B.S.

; Castro, R.S.

; Nascimento, E. Rosendo

; Marinho, M.L.

Arquivo Brasileiro de Medicina Veterinária e Zootecnia

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apr 2014, Volume 66 N. 2 Pages 631 - 634

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

This study aimed to report three cases of contagious agalactia (CA) by Mycoplasma agalactiae in goat kids born with polyarthritis. The nanny goats belonging to two different herds presented clinical signs of CA during pregnancy and in parturition they were apparently healthy. The carpal articulations of the three goat kids, the tarsus articulation in one, and thigh-femoral articulation in another showed swelling, pain and impairment of the flexion-extension movements. The articular liquid was collected from two goat kids at birth and revealed a content which varied from transparent to fibrinopurulent, presenting a yellow coloring. The samples were plated on modified Hayflick. The colonies had the appearance of "fried egg" and were confirmed as being M. agalactiae by biochemical tests and 16S rRNA PCR. Blood was collected from three animals soon after birth and submitted to the indirect ELISA test for the determination of the titration of the anti- M. agalactiae antibodies. The results confirmed that the goat kids were infected during pregnancy by M. agalactiae and resulted in the birth of an offspring with clinical signs of CA being immune tolerant.

https://doi.org/10.1590/1678-41626625 3291 downloads

Efficiency of inactive vaccines against contagious agalactia in Brazil
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Campos, A.C.

; Azevedo, E.O.

; Alcântara, M.D.B.

; Silva, R.B.S.

; Cordeiro, A.A.

; Mamede, A.G.

; Melo, M.A.

; Rosendo Nascimento, E.

; Castro, R.S.

Arquivo Brasileiro de Medicina Veterinária e Zootecnia

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oct 2013, Volume 65 N. 5 Pages 1394 - 1402

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

Este trabalho tem como objetivo avaliar a eficácia de três vacinas inativadas contra agalaxia contagiosa, preparadas com amostra de Mycoplasma agalactiae isolada no Brasil e diferentes adjuvantes. A vacina 1, adsorvida com hidróxido de alumínio, foi administrada em 23 caprinos (Gc1) e 13 ovinos (Gov1); a vacina 2, contendo Montanide IMS-2215-VG, foi administrada em 22 caprinos (Gc2) e 12 ovinos (Gov2); e a vacina 3, contendo Montanide Gel-01 foi administrada em 22 caprinos (Gc3) e 12 ovinos (Gov3). Todos os animais eram negativos para Ma no ELISA indireto e receberam duas doses de 2mL cada, por via subcutânea, com intervalo de 21 dias. Cinco animais de cada espécie foram utilizados como controle. Setenta e cinco dias após o reforço, quatro animais de cada grupo vacinado e dois do grupo controle foram desafiados com 5mL de cultura de Ma contendo 10(7)ufc/mL, por via oral e pela imersão dos tetos das fêmeas em lactação. A resposta sorológica foi analisada nos dias da vacinação (zero e 21) e aos 51, 81, 111, 141 e 171 dias pós-vacinação. As coletas e análises dos animais desafiados foram realizadas no dia do desafio (D0) e sete, 14, 21, 28, 35, 42, 49 e 56 dias pós-desafio. As três vacinas induziram produção de anticorpos, não havendo diferença estatisticamente significativa entre caprinos e ovinos (P>0,05). Animais dos grupos Gc1, Gc2 e Gov2 produziram níveis de anticorpos mais elevados, com diferença estatisticamente significativa em relação aos demais grupos vacinados e ao grupo controle (P<0,05). Após o desafio, os animais do grupo controle apresentaram aumento de linfonodos regionais e conjuntivite, mastite e artrite. Em quatro animais vacinados, foi observada discreta conjuntivite e congestão dos vasos episclerais. Conclui-se que as vacinas 1 e 2 induziram níveis de anticorpos protetores em caprinos e ovinos suficientes para proteção clínica dos animais submetidos à infecção experimental, podendo ser indicadas para prevenção da agalaxia contagiosa.

This paper aims to evaluate the efficiency of three inactive vaccines against contagious agalactia prepared with samples of Mycoplasma agalactiae isolated in Brazil and different adjuvants. Vaccine 1 adsorbed with aluminum hydroxide was administered in 23 goats (Gc1) and 13 sheep (Gov1); vaccine 2 containing Montanide IMS-2215-VG was administered in 22 goats (Gc2) and 12 sheep (Gov2) and vaccine 3, containing Montanide Gel-01 was administered in 22 goats (Gc3) and 12 sheep (Gov3). All animals were negative for Ma at indirect ELISA and received two doses of 2mL each, subcutaneously, within a 21 day interval. Five animals from each species were used as control. Seventy-five days after the booster, four animals from each vaccinated group and two from the control group were challenged with 5mL of Ma culture containing 10(7)cfu/mL, orally and through immersion of the female's udder in lactation. The serological response was analyzed during vaccination days (0 and 21) and at 51, 81, 111, 141 and 171 days after vaccination. The collection and analysis of the challenged animals were conducted at the day of the challenge (D0) and 7, 14, 21, 28, 35, 42, 49 and 56 days after the challenge. The three vaccines induced the production of antibodies, having no significant statistical difference (p<0.05). Animals from groups Gc1, Gc2 and Gov2 developed higher levels of antibodies, with significant statistical difference compared to the other vaccinated group and control group (p<0.05). After the challenge, the animals from the control presented an increase in regional lymph nodes and conjunctivitis, mastitis and arthritis. In four vaccinated animals, discrete conjunctivitis and congestion of the episcleral veins was observed. It is concluded that vaccines 1 and 2 induced levels of protective antibodies in goats and sheep, sufficient for clinical protection of the animals submitted to the experimental infection, indicating its use on the prevention of contagious agalactia.

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10.

Pesquisa de anticorpos contra Maedi-Visna em ovinos nas microrregiões de Botucatu, Campinas, Piedade e São Paulo, Estado de São Paulo
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Gregory, L.

; Lara, M.C.C.S.H.

; Kiraly, A.C.M.

; Hasegawa, M.Y.

; Rizzo, H.

; Henriques, L.C.S.

; Rossi, R.S.

; Castro, R.S.

Arquivos do Instituto Biológico

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mar 2013, Volume 80 N. 1 Pages 107 - 110

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

O objetivo deste estudo foi avaliar a ocorrência da infecção pelo vírus Maedi-Visna em ovinos criados nas microrregiões de Botucatu, Campinas, Piedade e São Paulo do Estado de São Paulo. As amostras de soro sanguíneo foram colhidas de 226 ovinos e foi realizada a técnica de imunodifusão em gel de ágar para a detecção de anticorpos antivírus Maedi-Visna e verificou-se que nenhuma das amostras testadas foi sororeagente. Dessa forma, faz-se necessário um estudo mais amplo no estado, a fim de se confirmar a baixa ocorrência e importância da enfermidade no estado.

The purpose of the study was to evaluate the occurrence of infection with maedi-visna virus in sheep raised in the regions of Botucatu, Campinas, Piedade and São Paulo, state of São Paulo, Brazil, that showed symptoms of the disease. Blood serum samples collected from 226 sheep were submitted to the agar gel immunodiffusion technique for detection of antibodies against maedi-visna virus, and none of the samples tested was serum reactive. In conclusion, the maedi-visna virus has low frequency in animals raised in the regions studied.

1558 downloads Cited 1 time in SciELO

11.

Comparison of different protocols for the extraction of microbial DNA from reef corals
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Santos, H.F.

; Carmo, F.L.

; Leite, D.C.A.

; Jesus, H.E.

; De Carvalho Maalouf, P.

; Almeida, C.

; Soriano, A.U.

; Altomari, D.

; Suhett, L.

; Vólaro, V.

; Valoni, E.

; Francisco, M.

; Vieira, J.

; Rocha, R.

; Sardinha, B.L.

; Mendes, L.B.

; João, R.R.

; Lacava, B.

; Jesus, R.F.

; Sebastian, G.V.

; Pessoa, A.

; van Elsas, J.D.

; Rezende, R.P.

; Pires, D.O.

; Duarte, G.

; Castro, C.B.

; Rosado, A.S.

; Peixoto, R.S.

Brazilian Journal of Microbiology

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jun 2012, Volume 43 N. 2 Pages 517 - 527

Abstract: En | Text: En | PDF: En

This study aimed to test different protocols for the extraction of microbial DNA from the coral Mussismilia harttii. Four different commercial kits were tested, three of them based on methods for DNA extraction from soil (FastDNA SPIN Kit for soil, MP Bio, PowerSoil DNA Isolation Kit, MoBio, and ZR Soil Microbe DNA Kit, Zymo Research) and one kit for DNA extraction from plants (UltraClean Plant DNA Isolation Kit, MoBio). Five polyps of the same colony of M. harttii were macerated and aliquots were submitted to DNA extraction by the different kits. After extraction, the DNA was quantified and PCR-DGGE was used to study the molecular fingerprint of Bacteria and Eukarya. Among the four kits tested, the ZR Soil Microbe DNA Kit was the most efficient with respect to the amount of DNA extracted, yielding about three times more DNA than the other kits. Also, we observed a higher number and intensities of DGGE bands for both Bacteria and Eukarya with the same kit. Considering these results, we suggested that the ZR Soil Microbe DNA Kit is the best adapted for the study of the microbial communities of corals.

24569 downloads Cited 1 time in SciELO

12.

Acúmulo de nutrientes em soja convencional e soja RR em diferentes tipos de controle de planta daninha
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Zobiole, L.H.S.

; Oliveira JR., R.S.

; Constantin, J.

; Oliveira JR, A.

; Castro, C.

; Oliveira, F.A.

; Kremer, R.J.

; Moreira, A.

; Romagnoli, L.M

Planta Daninha

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mar 2012, Volume 30 N. 1 Pages 75 - 85

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

O cultivo da soja - Glycine max (Roundup Ready® - RR) tem aumentado, e pouco tem sido relatada a influência do glyphosate sobre o estado nutricional das plantas. O objetivo deste trabalho foi comparar o acúmulo de nutrientes em diferentes estádios fenológicos entre os cultivares BRS 184 (convencional) e BRS 243 RR (transgênico), com mesmo ciclo vegetativo e reprodutivo, sob diferentes sistemas de manejo de plantas daninhas (capina e herbicida). O acúmulo de nutrientes e matéria seca na soja convencional foi superior ao da soja RR tratada com glyphosate, indicando que um nível maior de nutrientes pode ser requerido pelos cultivares RR para atingir a eficiência fisiológica e, provavelmente, uma nova recomendação de adubação para as culturas RR deve ser levada em consideração devido à redução da eficiência nutricional imposta pelo glyphosate.

The cultivation of soybean-Glycine max (Roundup Ready® - RR) has increased and little has been reported on the influence of glyphosate on the nutritional status of the plants. The aim of this work was to compare nutrient accumulation at different phenological stages between the cultivars BRS 184 (conventional) and BRS 243 RR (transgenic), with the same crop cycle, under different weed management systems (hand weed and herbicide). Nutrient accumulation and dry matter in conventional soybean was superior to that in the glyphosate-treated RR soybean, indicating that a higher level of nutrients might be required for the RR cultivars to achieve physiological efficiency and a new fertilizer recommendation for RR crops may be considered, due to the reduced nutritional efficiency imposed by glyphosate.

3961 downloads Cited 1 time in SciELO

13.

DETECÇÃO DO VÍRUS DA ARTRITE ENCEFALITE CAPRINA NO SÊMEN ATRAVÉS DAS TÉCNICAS DE PCR E NESTED-PCR
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Gregory, L.

; Lara, M.C.C.S.H.

; Hasegawa, M.Y.

; Castro, R.S.

; Rodrigues, J.N.M.

; Araújo, J.

; Keller, L.W.

; Silva, L.K.F.

; Durigon, E.L.

Arquivos do Instituto Biológico

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dec 2011, Volume 78 N. 4 Pages 599 - 603

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

RESUMO A Artrite Encefalite Caprina é uma enfermidade de caráter multissistêmico afetando animais de qualquer idade e sexo; causado por um Lentivirus caprino pertencente ao grupo de Lentivirus de Pequenos Ruminantes. Os sintomas conhecidos são leucoencefalomielite, pneumonia intersticial crônica, artrite e mastite intersticial endurativa. Foi descrito que machos soropositivos apresentavam sêmen infectado pelo Lentivirus e processo inflamatório gradual do testículo. A detecção em amostras de sêmen pelas técnicas de PCR e nested-PCR são caracterizadas como métodos de altas especificidade e sensibilidade provendo resultados rápidos. O objetivo do estudo foi detectar, por meio da técnica molecular de PCR e nested-PCR, a presença de DNA pró-viral do Lentivirus caprino em amostras de sêmen de reprodutores criados no Estado de São Paulo. Das 17 amostras, cinco (29,4%) apresentaram a detecção do vírus provando que há a presença de partículas virais no sêmen dos caprinos reprodutores soropositivos a Atrite Encefalite Caprina estudados.

ABSTRACT Caprine arthritis encephalitis is a multisystemic infectious disease caused by a lentivirus and may affect animals of any age or sex. The major symptoms are leukoencephalomyelitis, chronic interstitial pneumonia, arthritis and hardening interstitial mastitis. It has been reported that the testicles of infected animals present infected semen and a gradual inflammatory process. For the detection of the agent in semen samples, PCR and nested PCR techniques are characterized as methods with high specificity and sensibility that provide fast results. The objective of this study was to detect the presence of pro-lentiviral DNA in the semen of caprine males in São Paulo State, Brazil, by the PCR and nested PCR molecular techniques. Five (29.4%) of the 17 samples presented positivity for the detection of the virus, proving the presence of viral particles in the semen of male goats seropositive for caprine arthritis encephalitis in this study.

https://doi.org/10.1590/1808-1657v78p5992011 252 downloads

14.

Anticorpos contra vírus do grupo da língua azul em caprinos e ovinos do sertão de Pernambuco e inferências sobre sua epidemiologia em regiões semiáridas
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Mota, I.O.

; Castro, R.S.

; Alencar, S.P.

; Lobato, Z.I.P.

; Lima Filho, C.D.F.

; Silva, T.L. Araújo

; Dutra, A.C.T.

; Nascimento, S.A.

Arquivo Brasileiro de Medicina Veterinária e Zootecnia

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dec 2011, Volume 63 N. 6 Pages 1595 - 1598

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

The prevalence of antibodies against bluetongue virus was investigated in 41 dairy goats and 40 sheep herds in the semi-arid region of Pernambuco state and the conditions for insect Culicoides maintenance, considering climate dynamics and vector competence, were evaluated. The percents of seropositive herds in agar gel immunodiffusion test for bluetongue virus group were 24 for goats and 27.5 for sheep. The estimated prevalences of seropositive animals were 3.9% for goats (n = 410) and 4.3% for sheep (n = 400). The prevalences of seropositive animals were low in the mesoregion of Sertão Pernambucano (4.8% for goats and 4.1% for sheep) and São Francisco Pernambucano (1.0% for goats and 4.5% for sheep). There were no significant differences between species and regions. Considering the social and economic importance of goats and sheep raising in the semi-arid region, it is essential to establish preventive measures to control imports of ruminants from these areas.

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15.

Seroprevalence and risk factors of antibodies against Leptospira spp. in ovines from Uberlândia municipality, Minas Gerais state, Brazil
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Salaberry, Sandra R.S.

; Castro, Vanessa

; Nassar, Alessandra F.C.

; Castro, Jacqueline R.

; Guimarães, Ednaldo C.

; Lima-Ribeiro, Anna M.C.

Brazilian Journal of Microbiology

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dec 2011, Volume 42 N. 4 Pages 1427 - 1433

Abstract: En | Text: En | PDF: En

The objectives of the present study were to verify the seroprevalence of anti-Leptospira spp. antibodies, identify the most frequent serovars and the risk factors associated with the infection in Uberlândia, Minas Gerais, Brazil . A total of 334 ovines blood samples were collected in 12 farms from Uberlândia municipality to be evaluated by means the Microscopic Agglutination Test (MAT) against 22 serovars of Leptospira spp. and an epidemiologic questionnaire was applied for each farm in order to correlate with risk factors of leptospirosis: sex, age and breed as well as contact with cattle, contact with dogs and presence of rodents. The prevalence of seropositive to MAT was found in seventy four ovines (22.2%; CI 95% 17.6-26.4%), with titers ranging from 100 to 3200. The most frequent serovars identified were: Hardjo, Autumnalis, Hardjo and Wolffi association and Grippotyphosa. Statistically significant differences were found in males, pure breeds and presence of rodents (p<0.05). The prevalence of anti-Leptospira spp. antibodies found in the present study demonstrated that this bacterium occurs in ovines of Uberlândia municipality, MG, Brazil . The need for the adoption of efficient management for the control of rodents and infection in ovines in order to avoid leptospirosis in the local flocks and future transmission to humans.

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