RESUMO O presente estudo teve por objetivo identificar e quantificar as afecções odontológicas de equinos da raça Crioula criados exclusivamente em regime extensivo. No total, foram avaliados 254 cavalos Crioulos, criados em pastagens nativas com predominância de Eragrostis plana (capim-annoni). Os animais foram divididos em três grupos, de acordo com a idade: de três a cinco anos (G1), seis a 12 anos (G2 ) e 13 a 26 anos (G3). No total, 46,1% dos animais do G1, 63,8% do G2 e 82,3% do G3 apresentaram dois ou mais transtornos incisivos; 37,5% do G1, 52,5% do G2 e 45,5% do G3 tiveram duas ou mais alterações nos caninos; 28,9% do G1, 35,4% do G2 e 64,7% do G3 mostraram quatro ou mais distúrbios no segundo, terceiro e quarto pré-molares e molares. Contudo, cálculo dentário foi observado em 90,5% dos animais do G2, enquanto no G3, a taxa de ocorrência de pontas excessivas de esmalte dentário e cálculo foi de 82,4%. Concluiu-se que, apesar de todos os equinos estudados serem mantidos em sistema extensivo, as afecções dentárias mostraram-se muito comuns na raça Crioula sob estas condições de manejo.

ABSTRACT The present study aimed to identify and quantify dental diseases in Crioulo horses reared exclusively under extensive farming conditions. In total, 254 Crioulo horses were evaluated, that were reared exclusively in native pastures with predominantly Eragrostis plana (Annoni grass). The animals were divided into three groups according to age: three to five years (G1), six to 12 years (G2), and 13 to 26 years (G3). In total, 46.1% of the animals in G1, 63.8% in G2, and 82.3% in G3 had two or more incisor disorders; 37.5% in G1, 52.5% in G2 and 45.5% in G3 had two or more disease findings in the canines; and 28.9% in G1, 35.4% in G2, and 64.7% in G3 had four or more disease findings in the second, third, and fourth premolars and molars. However, dental calculus was observed in 90.5% of G2 animals, whereas in G3, the occurrence rate of excessive enamel points and calculus was 82.4%. Although all of the horses studied were reared in an extensive farming system, dental changes were very common in the Crioulo breed reared under these management conditions.

The adsorption of human IgG onto GMA (a semirigid methacrylate-based chromatography matrix) and His-GMA adsorbents was studied by chromatography and batch equilibrium binding analysis. IgG molecules adsorbed onto GMA gel by nonspecific hydrophobic interactions and the specificities were similar for both adsorbents. Adsorption data were analyzed using three isotherm models, namely the Langmuir, Freundlich and Langmuir-Freundlich models, and the adsorption parameters were computed. The experimental isotherms were best described by a combined Langmuir-Freundlich model, which indicated the presence of unequal binding sites on both adsorbents and/or positive cooperativity in the binding of the IgG molecules.

Os autores descrevem um caso clínico de ptose palpebral causada por uma patologia rara, o linfocitoma cútis. A paciente apresentava o quadro clínico do linfocitoma cútis em sua forma disseminada, com sintomatologia visual causada por nódulos palpebrais. A conduta cirúrgica realizada foi a ressecção dos nódulos palpebrais por meio de incisão de blefaroplastia, e o exame histológico confirmou o diagnóstico de linfocitoma cútis. O tratamento cirúrgico realizado foi eficiente para a melhora funcional das pálpebras.

A clinical case of acquired palpebral ptosis caused by a rare pathology, lymphocitoma cutis, is reported. An eyelid ptosis was characterized with the patient unable to lift the eyelid. The resection of the eyelid nodules was performed using blefaroplasty incision as access and the result of the anatomopathological examination confirmed the diagnosis: lymphocitoma cutis. The surgical result was satisfactory not only esthetically but also functionally (2-year follow-up).