Cutaneous papillomas of green turtles: a morphological, ultra-structural and immunohistochemical study in Brazilian specimens



Document title: Cutaneous papillomas of green turtles: a morphological, ultra-structural and immunohistochemical study in Brazilian specimens
Journal: Brazilian journal of veterinary research and animal science
Database: PERIÓDICA
System number: 000291580
ISSN: 1413-9596
Authors: 1
2



3
Institutions: 1Universidade de Sao Paulo, Faculdade de Medicina Veterinaria e Zootecnia, Sao Paulo. Brasil
2Instituto Adolfo Lutz, Divisao de Patologia, Sao Paulo. Brasil
3IBAMA Tamar Project, Sao Paulo. Brasil
Year:
Volumen: 38
Number: 2
Pages: 51-54
Country: Brasil
Language: Inglés
Document type: Artículo
Approach: Experimental
English abstract Eleven juvenile green turtles (Chelonia mydas) from Atlantic Ocean, Brazil, with multiple cutaneous papillomatosis were examined. Histologically, the papillomas exhibit stromal hyperplasia proliferation and epithelial proliferation. The epithelial cells had nuclear changes suggestive of viral infection and severe nuclear pleomorphism. A large nuclear halo was present in the cases of epithelial proliferation; in these cells, nuclear features were frequently dyscariotic, without inclusion. All fibropapillomas examined were negative for papillomavirus group-specific antigens (BPV) and herpesvirus group-specific antigens (HSV1 / HSV2) by the peroxidase-antiperoxidase technique. Electronic microscopy investigation was negative for papillomaviruses and herpes-viruses particles
Portuguese abstract Onze tartarugas verdes juvenis (Chelonia mydas) originárias do Oceano Atlântico, Brasil, com múltiplas lesões cutâneas papilomatosas foram examinadas. Histologicamente, os papilomas exibiam proliferação estromal hiperplásica e proliferação epidermal. As células epiteliais apresentavam alterações nucleares sugestivas de infecção viral e pleomorfismo nuclear severo. Um halo grande nuclear estava presente nos casos de proliferação epitelial; nessas células, características nucleares foram freqüentemente discarióticos, sem inclusão. Todos os fibropapilomas examinados foram negativos para antígenos grupo-específico para papilomavírus (BPV) e antígenos grupo-específico para herpesvírus (HSV1/HSV2) pela técnica peroxidase-antiperoxidase. Investigação por microscopia eletrônica foi negativa para partículas virais de papilomavírus e herpesvírus
Disciplines: Biología,
Química
Keyword: Anfibios y reptiles,
Inmunología,
Bioquímica,
Tortuga verde,
Fibropapilomas,
Papilomatosis
Keyword: Biology,
Chemistry,
Amphibians and reptiles,
Immunology,
Biochemistry,
Green turtle,
Fibropapillomas,
Papillomatosis
Full text: Texto completo (Ver HTML)