938 resultados para MAMMARY


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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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The aim of this study was to detect the expression of ciclooxigenase-2 (COX-2) in metastatic primary carcinoma and non metastatic carcinoma, taking into consideration the relation between COX-2 and the progression of cancer. Evaluation of the COX-2 expression was achieved by immunohistochemistry analysis, using the primary polyclonal antibody anti-PGHS-2, clone PG 27, (Oxford Biomedical Research). The number of marked cells by the COX-2 antibody was higher (P < 0.001) in the metastatic primary carcinoma (81.25%) than non-metastatic (60.3%). There was a positive correlation between the number of labeled cells.

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Uma égua da raça Quarto-de-Milha, doadora de embriões, de vinte e três anos de idade foi atendida no Departamento de Reprodução Animal e Radiologia Veterinária da FMVZ – UNESP – Botucatu, apresentando uma massa ulcerada, de consistência firme, drenando secreção serosanguinolenta, medindo 15cm x 16cm x 14,8cm na mama direita. O exame citológico foi inconclusivo devido à baixa celularidade e predomínio de células inflamatórias. Foi realizada mastectomia unilateral e exame histopatológico e técnicas específicas que revelaram um carcinoma mamário túbulo-papilífero, com extensivo acometimento intralobular e intraductal, estroma abundante e infiltrado inflamatório polimorfonuclear acentuado e difuso. Este trabalho tem como objetivo relatar os achados clínico e histopatológicos de um caso de carcinoma mamário túbulo-papilífero em uma égua, e afirmar a importância do exame citológico e histopatológico no diagnóstico diferencial de processos inflamatórios e neoplasias.

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Introduction: Bovine vaccinia virus (VACV) is a well-known zoonotic agent related to exanthemous lesions in skin and mucous membranes of dairy cattle and humans, characterized by the formation of vesicles, pustules and ulcers. Mastitis is one of the most common infectious diseases of dairy herds. Bovine mammary infections are caused mainly by bacterial microorganisms, especially staphylococci. To the best of our knowledge, intramammary coinfection with VACV and Staphylococcus aureus in cows has not been reported previously. Case presentation: During an outbreak of exanthematic bovine VACV infection with animals showing vesicles, pustules and haemorrhagic ulcers on the teats, milk samples were collected for mastitis detection. Conclusion: The present report describes a case of intramammary coinfection by VACV and S. aureus in a bovine VACV outbreak.

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Mastitis occurrence in mares is low if compared to other livestock species. The microorganisms often isolated and detected in milk and mammary gland secretions of mares are Streptococcus beta-haemolytica, Staphylococcus spp., Pseudomonas aeruginosa, Actinobacillus spp., and enterobacter. The present experiment was designed to evaluate the main microorganisms present in the milk of healthy mares and having a mammary infection. One hundred and ten mammary glands from 55 lactating mares were analyzed, ranging from 15 to 150 d post-partum. The mastitis diagnostic was performed through analysis of the milk via the screened test of the mug with dark background (Tamis), mammary gland inflammation and/or systemic signs. The subclinical mammary gland infection was characterized via the California Mastitis Test (CMT). From the 55 lactating mares, 2 (3.64%) had clinical mastitis. Following the CMT, the mares presented: 13 (23.60%), 7 (12.72%), and 12 (21.88%) scores from 1+, 2+, and 3+, respectively. From the 110 mamary glands were analysed, in 47 (85.45%) of these samples strains of microorganisms were isolated. In summary, results from our experiment suggest a low occurrence of clinical mastitis in lactating mares.

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Mastits is considered uncommon disease in mares. Streptococcus equi, Staphylococcus sp., Corynebacterium sp., Actinobacillus sp., Nocardia sp. and enterobacterias are major microorganisms involved in equine mammary infections. The disease is commonly related to traumatic lesions in mammary glands and teats. Edema, fibrosis, masses to palpation of glands, and viscous to seropurulent milk are mainly clinical signs observed in affected animals. The diagnosis is based on clinical exam of mammary glands and microbiological culture of the milk. There are no standard to use of indirect exams on diagnosis, including California Mastits Test and Somatic Cell Count. Systemic antimicrobials are recommended in therapy, based on previous “in vitro” susceptibility microbiological test. No specific control measures are indicated in equine mastits. The present study reviewed the mastits in mares, with emphasis to etiology, epidemiology findings, clinical manifestation, diagnosis, treatment and control aspects.

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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