Dermatite alérgica à picada de insetos em ovinos no estado do Pará

Barbosa, José Diomedes; Albernaz, Tatiane Teles; Oliveira, Carlos Magno Chaves; Duarte, Marcos Dutra; Oliveira, Cairo Henrique Sousa de; Brito, Marilene de Farias; Silva, André Guimarães Maciel e

doi:10.1590/s0100-736x2011000200004

Cited by 5 publications

(13 citation statements)

References 11 publications

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“…Mais recentemente casos de dermatite alérgica em ovinos deslanados, da raça Santa Inês, no Pará, foram associados à presença de Simulium e Hippelates (Barbosa et al 2011). derme havia intenso inϐiltrado inϐlamatório, preferentemente perivascular, composto por eosinóϐilos, macrófagos, plasmócitos e poucos linfócitos (Fig3A,B).…”

Section: Discussão E Conclusõesunclassified

“…e Psophora ferox (Ferreira 2007), Mansonia spp. (Schild et al 1993), Phlebotomus pernicious (Ordeix et al 2000) e dípteros do gênero Simulium e Hipplates (Barbosa et al 2011). Em ovinos pode estar ainda relacionada à picada de Ctenocephalides felis (Yeruham et al 2004).…”

Section: Introductionunclassified

“…No Brasil ocorre nas regiões Sul (Schild et al 1993, Souza et al 2005, Corrêa et al 2007, Ferreira 2007, Norte (Barbosa et al 2011, Vinhote et al 2010) e um caso isolado foi descrito na região nordeste (Macêdo et al 2008). Este trabalho objetiva descrever dermatite alérgica sazonal em um rebanho de ovinos da raça Santa Inês no município de Jucurutú, Estado de Rio Grande do Norte.…”

Section: Introductionunclassified

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Dermatite alérgica sazonal em ovinos deslanados no nordeste do Brasil

et al. 2012

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Pesq. Vet. Bras. 32(6) The skin of the affected sheep was whitish, irregularly thickened, with alopecia, crusts, and intense pruritus. Those lesions were localized more frequently in the head (ears and periocular and frontal regions) but in some animals the dorsum and croup were also affected. Histologic lesions of the epidermis were hyperkeratosis, acanthosis, hypergranulosis, and moderate spongiosis. The dermis showed inϐiltration by eosinophils, macrophages and plasma cells, mainly perivascular. The hair follicles showed keratosis and the sudoriparous glands were dilated. No changes were observed in the differential blood count. In April and June 2010 insects were captured by the use of CDC light trap. Forty three out of 110 dipterous captured were identiϐied as Culicoides insignis Lutz. It is concluded that the disease is a seasonal allergic dermatitis associated with C. insignis bites. A pele apresentava lesões alopécicas, crostosas, enrugadas, esbranquiçadas e com intenso prurido, localizados na região da cabeça (orelhas, ao redor dos olhos e região frontal), região dorsal do corpo e garupa. Histologicamente, a epiderme apresentou hiperqueratose, acantose, hipergranulose e moderada espongiose. Na derme havia

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Section: Discussão E Conclusõesunclassified

Section: Introductionunclassified

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Dermatite alérgica sazonal em ovinos deslanados no nordeste do Brasil

et al. 2012

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“…Seasonal allergic dermatitis is a skin disease that is associated with insect bites and affects several animal species, including horses (Henry & Bory 1937, Baker & Quinn 1978, Fadok & Greiner 1990, Schild et al 2003, Oliveira-Filho et al 2012, sheep (Connan & Lloyd 1988, Schild et al 2003, Corrêa et al 2007, Souza et al 2005, Barbosa et al 2011, Portela et al 2012, cattle (Yeruham et al 1993), mules, goats (Yeruham et al 1997, Macêdo et al 2008, felines (Mason & Evans 1991), and man (Penneys et al 1989, Brummer-Korvenkontio et al 1994.…”

Section: Introductionmentioning

confidence: 99%

“…The most affected animals were aged from 2 to 4 years, and it was suggested that the allergic dermatitis was associated with insects from the genera Simulium and Hippelates (Barbosa et al 2011). …”

Section: Introductionmentioning

confidence: 99%

Allergic dermatitis caused by Culicoides in Texel sheep in the state of Pará, Brazil

et al. 2017

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Clinical and epidemiological data were obtained during monthly visits to the farm. Skin biopsies were performed for histopathological examinations, and insects were captured with Centers for Disease Control and Prevention (CDC) traps and live-bait entomological vacuum devices. The property housed a herd of both genders, with 45 Santa Inês sheep of different ages and 72 Texel adults. Of the 72 Texel sheep, 56 were affected. Of these, 24 exhibited alopecia, erythema, edema, and crust in the ears, on top of the head, and less often, around the eyes. In addition to the lesions described above, 14 animals exhibited hyperpigmentation of the ears and/or around the eyes and crust in the nose. Another 18 animals exhibited chronic lesions characterized by deformed and thickened ears, alopecia with hyperpigmentation, and in most cases, secondary bacterial infections with abscesses and/or myiasis. Some of these animals had lost part of their ears. Histologically, the lesions were characterized as orthokeratotic hyperkeratosis, acanthosis, vacuolization, and necrosis of epidermal cells. An inflammatory infiltrate was present in the dermis, which was composed mainly of eosinophils and macrophages, some lymphocytes and mast cells, and few neutrophils, in addition to edema and collagen deposition. The Santa Inês sheep were not affected. Among the captured insects, 294 specimens of Culicoides (Hoffmania) plaumanni Spinelli, 57 specimens of C. (Hoffmania) insignis Lutz, and 27 specimens of other Culicoides species were identified. We conclude that C. plaumanni, C. insignis, and possibly other Culicoides species are involved in the etiology of allergic dermatitis in Texel sheep in the state of Pará. Santa Inês sheep in the same region and under the same conditions were not affected, which suggests lower susceptibility of these animals.

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Doenças de pele em equídeos no semiárido brasileiro

Pessoa¹,

Pessoa²,

Neto³

et al. 2014

Pesq. Vet. Bras.

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As doenças que acometem a pele e anexos de equídeos no semiárido nordestino foram analisadas mediante um estudo retrospectivo dos registros de atendimento na Clínica de Grandes Animais do Hospital Veterinário da Universidade Federal de Campina Grande, de janeiro de 2002 a dezembro de 2012. Dos 2.054 atendimentos 1.786 eram equinos, 200 eram asininos e 58 eram muares. Os diagnósticos de dermatopatias totalizaram 535 casos (26,05%) dos quais 447 foram em equinos, 68 em asininos e 20 em muares. Nos equinos as dermatopatias mais frequentes foram a pitiose (24,38%), as feridas traumáticas (23,04%), os abscessos (12,75%), o tecido de granulação (8,5%) e a habronemose (7,38%). Juntas essas enfermidades totalizaram 76,05% dos diagnósticos de dermatopatias para essa espécie. Em asininos as doenças mais frequentes foram feridas traumáticas (47,5%), sarcoide (19,11%) e abscessos (13,23%). Estas enfermidades juntas representaram 79,84% das doenças de pele nesta espécie. Os muares apresentaram feridas traumáticas em 30% dos casos e carcinoma de células escamosas e habronemose em 15% cada. As três enfermidades representaram 60% dos diagnósticos de doenças de pele nesta espécie. Conclui-se que as doenças de pele são uma das principais causas de atendimento clínico em equídeos na região semiárida do nordeste do Brasil e os conhecimentos gerados neste estudo são importantes para o reconhecimento, diagnóstico e tratamento das mesmas.

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Dermatite alérgica à picada de insetos em ovinos no estado do Pará

Cited by 5 publications

References 11 publications

Dermatite alérgica sazonal em ovinos deslanados no nordeste do Brasil

Dermatite alérgica sazonal em ovinos deslanados no nordeste do Brasil

Allergic dermatitis caused by Culicoides in Texel sheep in the state of Pará, Brazil

Doenças de pele em equídeos no semiárido brasileiro

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