Imuno-histoquímica para identificação de células neoplásicas no infiltrado ativo de melanomas finos

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Radiographic Abnormalities in Barrel Racing Horses with Lameness Referable to the Metacarpophalangeal Joint

Barrel racing is one of the most popular uses of the American Quarter horse in North and South America. Although injury to the metacarpophalangeal joint frequently occurs in this sport, there is limited information describing the nature of these injuries. The aim of this study was to determine the most common radiographic abnormalities in barrel racing horses with lameness referable to the metacarpophalangeal joint. lameness examinations were performed on 63 barrel racing horses. Those found to be lame were subjected to radiographic examination. Lameness at trot was scored on a scale of 0-5 (0 = sound; 5 = inability to move). Data were analyzed using descriptive statistical analysis. of horses examined, 30 (47.6%) were lame with scores ranging from 1 to 4. Half of the lame horses (15 of 30) had grade 2 lameness of the right forelimb. Abnormal radiographic findings were more often present on the left forelimb and included signs of sesamoiditis (70%), villonodular synovitis (56.6%), osteoarthritis (36.6%), osteochondritis dissecans (13.3%), capsulitis (13.3%), and soft-tissue swelling (6.6%). Radiographic abnormalities indicated that sesamoiditis, villonodular synovitis, and osteoarthritis may be associated to mild-to-moderate lameness in barrel racing horses. Complementary sonographic evaluation is recommended to better characterize soft-tissue abnormalities. (C) 2012 Elsevier B.V. All rights reserved.

Rehabilitation with ear prosthesis linked to osseointegrated implants

Background: The absence of an ear, which can be the result of a congenital malformation, surgical tumour resection or traumatic injury, is a significant aesthetic problem. Attachment of ear prostheses with adhesives can cause local irritation for the wearer and affect the colour of the prostheses. Use of implants in craniofacial reconstruction can improve the retention and stability of prostheses giving to patient greater comfort and security relative to adhesive attachment.Objective: The aim of this report was to present a clinical case of a mutilated patient who was rehabilitated by means of installing an ear prosthesis fixed through osseointegrated implants.Materials and methods: The patient had two implants installed in the mastoid region that were linked by a bar, and a clip-type system was used. The ear prosthesis was constructed from medical-use silicone, pigmented to match the patient's skin colour and linked to the retention system.Conclusion: The patient's rehabilitation was satisfactory from both a functional and an aesthetic point of view, making it possible for the patient to return to a normal social life and regain lost self-esteem.

Influence of Pigments and Opacifiers on Color Stability of an Artificially Aged Facial Silicone

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Evaluation of the Shore A Hardness of Silicone for Facial Prosthesis as to the Effect of Storage Period and Chemical Disinfection

The failure of facial prostheses is caused by limitations in the properties of existing materials, especially flexibility and durability. Therefore, this study evaluated the Shore A hardness of silicone used for fabrication of facial prostheses, Silastic MDX4-4210, according to the influence of storage period, daily disinfection, and 2 types of pigmentation. Thirty specimens were fabricated and divided in 3 groups: colorless, pigmented with makeup, and pigmented with iron oxide. Analysis of results was assessed on a Shore A hardness meter immediately, 6 months, and 1 year after fabrication of specimens, following the guidelines of the American Society for Testing and Materials. The hardness values were statistically analyzed by the Tukey test. The silicone exhibited an increase in hardness with time. However, the hardness was stable from 6 months to 1 year. It was concluded that the silicone is within the values of Shore A hardness reported in the literature, regardless of the storage period, pigmentation, and chemical disinfection.

Color Stability of Polymers for Facial Prosthesis

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

O tabagismo como fator de risco para as doenças periodontais: aspectos microbiológicos

O fumo é considerado importante fator predisponente para muitas doenças, incluindo-se as periodontopatias. Desde que as doenças periodontais representam a inter-relação entre os fatores de virulência da microbiota subgengival sobre um hospedeiro susceptível, foi objetivo avaliar a freqüência de isolamento de três periodontopatógenos em indivíduos sadios e pacientes com doença periodontal, fumantes ou não, com níveis variados de higiene bucal; verificar a relação entre o número de microrganismos produtores de sulfeto de hidrogênio na placa subgengival de fumantes e não fumantes e sua condição clínica. Foram examinados 189 pacientes e indivíduos sadios, dos quais 60 foram selecionados para análise microbiológica. O índice de placa foi registrado de acordo com o índice de O'Leary e os espécimes de placa subgengival coletados e processados de acordo com SLOTS35 (1982). A identificação dos isolados foi obtida pelas suas características morfocelulares, morfocoloniais e bioquímico-fisiológicas. Verificou-se que a freqüência de isolamento dos bastonetes anaeróbios produtores de pigmento negro, Fusobacterium nucleatum e bactérias produtoras de sulfeto de hidrogênio foi similar entre fumantes e não fumantes, sendo mais elevada nos pacientes com doença periodontal. Já Actinobacillus actinomycetemcomitans foi isolado mais freqüentemente em sadios fumantes do que sadios não fumantes.

Subgingival microbiota from Cebus apella (capuchin monkey) with different periodontal conditions

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Morphological characterization of rat incisor fluorotic lesions

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

A new species of Amazophrynella (Anura: Bufonidae) from southern Amazonia

A new species of the genus Amazophrynella is described from southern Amazonia, Brazil. The new species is characterized by its medium size for the genus (15.2-19.3 mm SVL in males, 20.2-25.7 mm SVL in females), snout rounded in dorsal view, acute in lateral view, presence of subrostral crest not converging anteriorly, finger I shorter than finger II, and by dorsal and ventral coloration. The reproductive behavior of the new species is similar to other Amazophrynella with pigmented and numerous eggs that are probably laid in temporary ponds.

Histology, histochemistry and stereology of the adipose fin of Prochilodus lineatus

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Pigmentation in Anuran Testes: Anatomical Pattern and Variation

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Comparative analysis of the testes and spermatogenesis in species of the family Pentatomidae (Heteroptera)

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Phylogenetic signal and variation of visceral pigmentation in eight anuran families

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Visceral pigmentation in four Dendropsophus species (Anura: Hylidae): Occurrence and comparison

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)