RESUMO

A saúde renal tem ao longo dos últimos anos chamado atenção dos médicos veterinários, pois o comprometimento deste órgão na insuficiência renal crônica se apresenta como a maior causa de morbidade e mortalidade em felinos. O presente estudo propõe a caracterização biométrica dos rins de gatos, Felis catus, sob os aspectos macroscópicos (comprimento, altura, largura, peso e volume), mesoscópico (altura do córtex e da medula, e a sua inter-relação) e microscópica (volume glomerular), a fim de se estabelecer possíveis diferenças decorrentes de idade, sexo e simetria bilateral. Foram utilizados, rins de 30 animais da espécie Felis catus (gato deméstico), sendo 15 machos e 15 fêmeas com idade variando entre 3 meses a 15 anos, divididos em três grupos: grupo 1 (3-9 meses), grupo 2 (3-5 anos) e grupo 3 (acima de 10 anos)...

Renal health has over the last few years called attention of veterinarians, because the chronic failure of the kidneyu is a major cause of morbidity and mortality in cats. This paper proposes biometric characterization of the kidneys from cats, Felis catus, on the macroscopic aspects (length, height, width, weight and volume), mesoscopic (height of the cortex and medulla, and their inter-relationship) and microscopic (glomerular volume) in order to establish possible differences arising from age, gender and bilateral symmetry. It where used 30 kidneys of animals from specie Felis catus (cat), 15 males and 15 females with ages between 3 months to 15 years, divided into three groups: group 1 (3-9 months), group 2 (3 - 5 years) and group 3 (above 10 years)...

Assuntos

RESUMO

A saúde renal tem ao longo dos últimos anos chamado atenção dos médicos veterinários, pois o comprometimento deste órgão na insuficiência renal crônica se apresenta como a maior causa de morbidade e mortalidade em felinos. O presente estudo propõe a caracterização biométrica dos rins de gatos, Felis catus, sob os aspectos macroscópicos (comprimento, altura, largura, peso e volume), mesoscópico (altura do córtex e da medula, e a sua inter-relação) e microscópica (volume glomerular), a fim de se estabelecer possíveis diferenças decorrentes de idade, sexo e simetria bilateral. Foram utilizados, rins de 30 animais da espécie Felis catus (gato deméstico), sendo 15 machos e 15 fêmeas com idade variando entre 3 meses a 15 anos, divididos em três grupos: grupo 1 (3-9 meses), grupo 2 (3-5 anos) e grupo 3 (acima de 10 anos). Os rins foram fotografados, pesados, mensurados e processados para histologia. O volume glomerular foi obtido através de estereologia. Os dados macroscópicos permitiram observar uma imparcialidade morfométrica e morfológica quando comparados os lados, independente do grupo e do sexo, sobre o comprimento, altura, largura, peso e volume dos rins. Para o sexo foi detectado diferença significante entre machos e fêmeas independente da faixa etária para comprimento, altura, peso e volume, com exceção da largura. Considerando a idade houve diferença significativa para todos os parâmetros: comprimento, altura, largura, peso e volume. Nas mensurações de córtex, medula e sua inter-relação, quando considerada a simetria bilateral, não foi detectada diferença significante entre rim direito e esquerdo. Para o sexo, não foi detectada diferença entre machos e fêmeas na mesoscopia no córtex, na medula e na inter-relação córtex/medula. Quanto à idade, a mensuração da altura do córtex e a inter-relação córtex/medula apresentou diferença significante, porém essa diferença não foi estabelecida para a medula do rim. [...] (AU)

Renal health has over the last few years called attention of veterinarians, because the chronic failure of the kidneyu is a major cause of morbidity and mortality in cats. This paper proposes biometric characterization of the kidneys from cats, Felis catus, on the macroscopic aspects (length, height, width, weight and volume), mesoscopic (height of the cortex and medulla, and their inter-relationship) and microscopic (glomerular volume) in order to establish possible differences arising from age, gender and bilateral symmetry. It where used 30 kidneys of animals from specie Felis catus (cat), 15 males and 15 females with ages between 3 months to 15 years, divided into three groups: group 1 (3-9 months), group 2 (3 - 5 years) and group 3 (above 10 years). The kidneys were photographed, weighed, measured and processed for histology. The glomerular volume was obtained by stereology. The macroscopic data allowed to observe a morphometric and morphologic impartiality when compared sides, regardless of group and sex, about the length, height, width, weight and kidney volume. Significant difference was detected between males and females regardless of age for length, height, weight and volume, except for the width. There was a significant difference for all parameters considering the age: length, height, width, weight and volume. Wasnt detected signficant diferences between left and right kdney measurements of cortex, medulla and their inter-relationship, when considered bilateral symmetry. No difference was detected between males and females in mesoscopy in the cortex, medulla and cortex interrelationship cortex/medulla. Regarding age, the measurement of the height of the cortex and the interrelationship cortex/medulla showed a significant difference, but this difference was not established to the medulla of the kidney. Significant differences were found between groups, males and females, compared to the volume occupied by the glomerulus on the parenchyma renal. [...] (AU)

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RESUMO

The mandible has a mixed embryological origin, and its growth is associated with the secondary cartilage of the condyle process (CP). In this area, growth depends on an array of intrinsic and extrinsic factors that influence protein metabolism. In the present study, we used an adolescent rat model to evaluate the growth and development of the CP under conditions of pre- and postnatal protein deficiency, combined with or without the stress of severe burn injury (BI). We found that protein deficiency severely undermined the growth of the CP, by altering the thickness of its constituent layers. BI is also capable of affecting CP growth, although the effect is less severe than protein deficiency. Interestingly, the summed effect of protein deficiency and BI on the CP is less severe than protein deficiency alone. A possible explanation is that the increased carbohydrates in a hypoproteic diet stimulate the production of endogenous insulin and protein synthesis, which partially compensates for the loss of lean body mass caused by BI.

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RESUMO

The purpose of this study was to determine Brazilian dentists' knowledge of emergency management of dento-alveolar trauma. A two-part questionnaire containing questions on demographic data and knowledge were mailed to 230 general dental practitioners (GDPs) and 70 endodontists. Questionnaires were returned by 42.6% of the GDPs and 62.8% of the endodontists. The survey data were statistically analyzed using Mann-Whitney U-test for practitioners' knowledge and Pearson's correlation coefficient for association between knowledge scores and practitioner age or years since graduation. The mean knowledge score of endodontists was significantly greater than for GDPs (P<0.0001). Dentists with trauma experience in their practices and those who had attended postgraduate courses on dental trauma had a significant higher mean knowledge score. In contrast, there was a poor correlation between the knowledge score and the ages of the respondents (r=0.086) or the years since graduation (r=0.108). In conclusion, this survey showed a poor knowledge of dental trauma management among the surveyed dentists and highlights the need to develop strategies to improve the knowledge base in this area of dentistry for the benefit of the dental trauma patient.

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