Intellectual and scientific content of the study, surgical procedures, critical revision. ABSTRACT PURPOSE:To evaluate the potential of heterologous platelet-rich plasma (PRP) gel for surgical skin wound healing in rabbits METHODS: Blood from a single healthy dog was used for PRP production, with calcium gluconate added to the PRP to form the gel.Two surgical excisions, one to the right and the other to the left of the dorsal midline, were made in six rabbits. One side was randomly allocated to topical application of a physiological solution, and the other was allocated to treatment with heterologous PRP gel. Clinical assessments (weight, pain sensitivity, coloring, edema, hyperemia, exudation, crust, and granulation) and morphometric evaluations were performed 0, 3, 7, 10, 14, and 17 days postoperatively. Histological analysis was performed on the 17 th day. RESULTS:With the exception of the presence of a crust at day 10, clinical variables did not differ significantly between the experimental groups. In both the control and PRP-treated groups, differences were identified when comparing time-points in terms of wound area reduction. Histological results indicated no significant differences between the control group and the PRP-treated group. CONCLUSION:Heterologous platelet-rich plasma gel promoted dermal wound healing in rabbits with no adverse effects.

ResumoO objetivo do presente estudo foi avaliar as alterações na bioquímica sérica em eqüinos PSI submetidos a exercícios de diferentes intensidades. Foram colhidas amostras de sangue de 60 eqüinos PSI, distribuídos nos seguintes grupos: 30 animais sendo 15 machos e 15 fêmeas, com idade de 24 a 36 meses, não submetidos a treinamento e após um período de 12 meses de treinamento e 30 eqüinos de 36 a 48 meses, em fase de treinamento, antes e após o trote . Dos animais de 36 a 48 meses foram selecionados 20 machos e 10 fêmeas e colhido sangue antes e após o galope. Determinou-se, por métodos colorimétricos, os valores da glicose plasmática e, por métodos cinéticos, as enzimas aspartato aminotransferase (AST), creatinoquinase (CK), lactato desidrogenase (LDH) e gama-glutamiltransferase (GGT). A análise estatística dos resultados comprovou a ocorrência de aumento significativo (p<0,05) dos valores da glicose plasmática após o trote e galope para ambos os sexos. Para as enzimas CK e LDH ocorreram aumentos significantes (p<0,05), porém, com diferenças entre os sexos. As alterações nos valores de AST e GGT não foram significativas. Palavras-chave: Eqüino, PSI, treinamento, exercício bioquímicos AbstractIn order to evaluate the influence of exercise of different intensities on biochemical parameters in Thoroughbred horses blood was collected from 60 animals, 30 males and 30 females.The animals were subdivided in two groups : 30 horses, 15 males and 15 females with 24 to 36 months of age and not in training, and after 12 months of training; 30 horses, 15 males and 15 females with 36 to 48 months of age in training. Blood samples were collected before and after trot and gallop. Plasmatic glucose was analyzed through a colorimetric method, while aspartate aminotransferase (AST), creatine kinase (CK), lactate dehydrogenase (LDH) and gammaglutamyltransferase (GGT) were analyzed through kinetic methods. Results show a statistically significant increase in plasmatic glucose after trot and gallop independent of gender, while the increases in CK and LDH were different for males and females. Variations for AST and GGT were not statistically significant.

O presente estudo foi delineado para avaliar as alterações nos valores da amplitude de distribuição do tamanho dos eritrócitos (RDW) e do volume globular médio (VGM) em eqüinos PSI submetidos a exercícios de diferentes intensidades. Foram colhidas amostras de sangue de 60 eqüinos, PSI, sendo 30 machos e 30 fêmeas, distribuídos nos seguintes grupos: eqüinos de 24 a 36 meses de idade não submetidos a treinamento e após um período de 12 meses de treinamento; eqüinos de 36 a 48 meses de idade em fase de treinamento, antes e após o trote e antes e após o galope. As amostras foram processadas no contador automático de células Cell-Dyn 3500R (Abbott Diagnostic). Os valores médios obtidos para o RDW aumentaram significativamente após o trote e galope, demonstrando ocorrer alteração no grau de anisocitose porém os valores do VGM não apresentaram alterações nesses mesmos momentos.

Influência de um nutracêutico no sêmen, testosterona, cortisol, eritrograma e peso corpóreo em touros jovens Bos taurus indicus AbstractThe purpose of this study was to investigate the nutraceutic (Promater) influence on semen, body weight, eritrogram and hormones testosterone and cortisol in Nelore young bulls. Twenty Nelore bulls were utilized, aging between 30 and 36 months, divided in group 1 (G1)=10 (control) and group 2 (G2)=10 (nutraceutic group -Promater: 20 mL/animal/day, during 70 days). Corporal weight, blood samples to eritrogram, testosterone and cortisol were obtained in days zero (D0), 35 (D35) and 70 (D70) in two groups. There was difference (P<0.01) among days collected (0, 35 and 70) with means of 424.30 kg, 480.70 kg and 502.60 kg, respectively, but there was not difference between groups. There was not difference among groups to semen, eritrogram, cortisol (G1 = 3,19 µg/dL; G2 = 2,91 µg/dL) and testosterone (G1 = 274,48 ng/dL; G2 = 509,65 ng/dL). The results exposed allow concluding that were not observed significative effect of the nutraceutic upon evaluated parameters: body weight, semen, hormonal profile and eritrogram.

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Over the years, autologous platelet-rich plasma (PRP) has been used to great advantage in the healing of acute and chronic wounds. However, it is impossible to use in some situations so alternative PRPs need to be considered, such as homologous or heterologous PRPs. In order to evaluate the effects of PRP in the form of autologous, heterologous and homologous gels on in vivo cutaneous wound healing, 18 animals divided into three groups of six, were used for the study, with another six animals used as PRP donors. For the heterologous group an adult, mixed breed dog was used to obtain the PRP. The wounds were induced using an 8 mm punch. The left side was treated with NaCl 0.9%® (A) and a PRP gel was applied (GA = autologous; GHE = heterologous and GHO = homologous) on the right side (B). The wounds were evaluated for a period of 17 days. On the 17th day biopsies were taken for histopathological assessment of the wounds. The percentage of contraction was evident in side B (treated), which was confirmed in the microscopic analysis of the histological sections. Thus, it was concluded that PRP, regardless of the source, improves and accelerates the healing process, demonstrating its therapeutic potential on cutaneous lesions and its use in patients with impaired wound healing.

RESUMOInvestigou-se o efeito da lidocaína isolada ou associada ao fentanil na anestesia epidural, para realização de ováriossalpingo-histerectomia. Dezoito cadelas foram tranqüilizadas com acepromazina, seguindo-se indução anestésica com propofol, para a realização da punção lombossacra. Os animais foram distribuídos em dois grupos: o grupo GL recebeu lidocaína (8,5mg/kg) e o GLF fentanil (5µg/kg) associado à lidocaína (6,5mg/kg). Mensuraram-se as freqüências cardíaca (FC) e respiratória (FR), pressão arterial sistólica (PAS), variáveis hemogasométricas, concentração sérica de cortisol, necessidade de complementação anestésica com propofol durante a cirurgia, temperatura retal (T), período de latência e duração do bloqueio anestésico. Foi observada redução na FC, FR e PAS no GL e GLF, porém esses parâmetros mantiveram-se dentro dos limites fisiológicos. Para ambos os grupos, a concentração sérica de cortisol manteve-se estável após a cirurgia. Complementação anestésica foi necessária em 40% e 75% dos animais do GLF e GL, respectivamente. Conclui-se que ambos os protocolos foram suficientes para inibir a elevação sérica do cortisol, e resultaram em alterações mínimas cardiorrespiratórias, e que a complementação anestésica foi necessária.

Toxocariasis, caused most commonly by Toxocara canis, is an important cosmopolitan zoonosis. Paratenic hosts have been employed to provide knowledge regard to the transmission of toxocariasis. Transmammary transmission in murine experimentally infected was observed based on the recovery of larvae from the tissue. The aim of this study was to evaluate the possibility of transmammary transmission of Toxocara canis in rabbits by detecting larvae directly in milk. Seventeen sexually mature virgin white New Zealand female rabbits were divided into two groups. Twelve animals were orally inoculated with 1,000 T. canis embryonated eggs (infected group), and five animals remained uninfected (control group). One month following the infection, the females were mated. Manual collection of 500 µL of milk from each rabbit was performed on days +7, +14 and +21 of lactation for three consecutive lactations. The recovery of larvae was determined via a centrifuge-sedimentation technique using ether and formalin solutions. ELISA test was run to confirm the production of anti-T. canis antibodies (IgG) by infected rabbits. The presence of larvae was observed in milk samples from 5 (41.7%) of the 12 infected rabbits. The total number of recovered larvae was 20, ranging from 1 to 4 larvae per lactation/rabbit. Larvae were recovered exclusively on days 7 and 14 of lactation. Recovery was verified in different lactations. No significant difference was observed with respect to the number of larvae either in the same lactation period or in different lactation periods. Anti-T. canis antibodies were detected in all infected rabbits. In conclusion, the presence of larvae in rabbit milk samples suggests the possibility of galactogenic transmission of T. canis in paratenic hosts. Moreover, the technique employed in this study allows for the recovery of larvae directly from milk. a recuperação de larvas. O objetivo do presente estudo foi de avaliar a possibilidade de transmissão transmamária de Toxocara canis em coelhos, pela detecção direta de larvas no leite. Dezessete coelhas (Nova Zelândia branca) púberes e virgens foram distribuídas em dois grupos. Doze fêmeas foram infectadas com 1000 ovos embrionados de T. canis (Grupo Infectado), por via oral, enquanto outras cinco coelhas foram mantidas sem infecção (Grupo Controle). Um mês após a inoculação, as coelhas foram acasaladas. Nos dias +7, +14 e +21 após o nascimento dos filhotes, foram coletados, por ordenha manual, 500µL de leite, em três lactações consecutivas. A recuperação de larvas foi determinada pelo uso da técnica de centrífugo-sedimentação com formol-éter. A técnica de ELISA foi empregada para confirmar a produção de anticorpos (IgG) anti-T. canis pelas fêmeas infectadas. Observou-se a presença de larvas em cinco das doze (41,7%) coelhas por amostra. As larvas foram recuperadas exclusivamente nos dias +7, +14 de lactação. A detecção foi observada em diferentes lactações. Não houve diferença significativa entre o número de larvas na mesma lactação ou entre as diferentes lact...