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1.
Malaysian Orthopaedic Journal ; : 38-41, 2019.
Article in English | WPRIM | ID: wpr-777700

ABSTRACT

@#Meniscectomy is the most common surgery in orthopaedics. The absence of meniscal tissue might be related to irreversible damage to the articular cartilage. Meniscal replacement is a tissue-engineering technique for postmeniscectomy syndrome. Its success depends on the implant integration which was vastly proven in animal model studies. Histological evidence is hard to obtain in humans due to ethical issues. We report a clinical case in which a collagen scaffold meniscal implant was harvested six months after implantation due to mechanical failure. Histological analysis was performed revealing vascularisation not only of the peripheral attachment of the implant but also on the anterior horn. These morphologic findings demonstrate that this implant allows the colonisation by precursor cells and vessels, leading to the formation of a fully functional tissue. This present report is one of the few independent reports of scaffold biological integration in the literature.

2.
Arq. bras. med. vet. zootec ; 64(1): 137-144, Feb. 2012. ilus, tab
Article in Portuguese | LILACS | ID: lil-617940

ABSTRACT

Foi avaliada a eficiência de uma fitase (FT) bacteriana na liberação de fósforo fítico utilizando-se curvas de calibração para características ósseas e de desempenho em frangos de corte. O delineamento experimental foi inteiramente ao acaso, com seis tratamentos e seis repetições até 28 dias de idade. O tratamento-controle foi uma dieta à base de milho e farelo de soja deficiente em fósforo (P). Dois tratamentos corresponderam às dietas basais acrescidas de P suplementar, 0,05 por cento e 0,10 por cento, e os outros à dieta basal com 66, 99 e 131 FTU/kg de ração. A curva padrão é definida pelo efeito da adição de P suplementar consumido sobre características ósseas e de desempenho, e os resultados dos tratamentos com fitase são confrontados com a curva para cálculo de P liberado. A adição de P suplementar influenciou o ganho de peso, o peso vivo e o consumo de ração de forma quadrática, bem como miligramas de cinzas ósseas de forma linear. A curva padrão adotada foi da variável miligramas de cinzas ósseas, pois a resposta linear melhor descreve a curva. As inclusões de 66, 99 e 131 FTU/kg liberaram, respectivamente, 0,048 por cento, 0,049 por cento e 0,062 por cento de P. A fitase bacteriana é eficiente na liberação de fósforo fítico e possui viabilidade econômica.


The objective was to determine the efficiency of a bacterial phytase to release phytate phosphorus using calibration curves for performance and bone characteristics in broiler chickens. A completely randomized design with 6 treatments and 6 replicates was used in an experiment with chickens from 1 to 28 days of age. The control treatment was a diet based on corn and soybean meal deficient in phosphorus. Two treatments consisted of the basal diet supplemented with additional phosphorus (0.05 percent and 0.10 percent), and the other treatments received 66, 99 and 131 FTU/kg of feed. The standard curves represented the effect of the levels of additional P intake on performance and bone variables. Then, the responses of the phytase treatments were compared to the standard curves to calculate the P released. The increasing levels of supplemental P had a quadratic effect on weight gain, live weight and feed intake, and linear effect on mg of bone ash. The standard curve elected was mg of bone ash because linear response better represents the curve. Inclusion of 66, 99 and 131 FTU/kg released 0.048 percent, 0.049 percent and 0.062 percent. The bacterial phytase is efficient in releasing phytate, which may be of economical significance.

3.
J. venom. anim. toxins incl. trop. dis ; 13(3): 576-597, 2007. ilus, graf
Article in English | LILACS, VETINDEX | ID: lil-461645

ABSTRACT

Venoms from snakes of the Bothrops genus are proteolytic, coagulant, hemorrhagic and nephrotoxic, causing edema, necrosis, hemorrhage and intense pain at the bite site, besides systemic alterations. Many adjuvants have been added to the venom used in the sensitization of antiserum-producer animals to increase antigenic induction and reduce the envenomation pathological effects. Gamma radiation from 60Co has been used as an attenuating agent of the venoms toxic properties. The main objective was to study, comparatively, clinical and laboratory aspects of goats inoculated with bothropic (Bothrops jararaca) venom, natural and irradiated from a 60Co source. Twelve goats were divided into two groups of six animals: GINV, inoculated with 0.5mg/kg of natural venom; and GIIV, inoculated with 0.5mg/kg of irradiated venom. Blood samples were collected immediately before and one, two, seven, and thirty days after venom injection. Local lesions were daily evaluated. The following exams were carried out: blood tests; biochemical tests of urea, creatinine, creatine kinase (CK), aspartate amino-transferase (AST) and alanine amino-transferase (ALT); clotting time; platelets count; and total serum immunoglobulin measurement. In the conditions of the present experiment, irradiated venom was less aggressive and more immunogenic than natural venom.(AU)


Subject(s)
Animals , Snakes , Goats , Gamma Rays , Hematologic Tests , Blood Platelets , Creatine Kinase
4.
Arq. bras. med. vet. zootec ; 57(4): 510-517, ago. 2005. tab
Article in Portuguese | LILACS | ID: lil-415192

ABSTRACT

Foram conduzidos um ensaio de metabolismo para determinar o valor nutricional do milho termicamente processado (MP) e não-processado (MNP) e outro de desempenho para comparar o uso desses alimentos em dietas pré-iniciais para frangos de corte. Não foram observadas diferenças entre a digestibilidade da matéria seca (MS), do extrato etéreo, da proteína bruta e do amido e valores de energia metabolizável aparente dos tipos de milho avaliados. A energia metabolizável aparente corrigida do MP (3.537kcal/kg de MS) foi maior (P<0,05) que a determinada para o MNP (3.411kcal/kg de MS). No ensaio de desempenho, os tratamentos foram: T1- dieta formulada com MNP; T2 - dieta formulada com MP; e T3 - dieta T1, com substituição isométrica do MNP por MP. Na primeira semana, as aves alimentadas com MP (T2) apresentaram maior consumo (P<0,05) e pior conversão (P<0,05) em relação às alimentadas com MNP (T1). A substituição isométrica do MNP por MP não influenciou no desempenho das aves. No período de 1 a 42 dias, os tratamentos não influenciaram o desempenho dos frangos.


Subject(s)
Animal Feed , Animal Nutritional Physiological Phenomena , Poultry , Zea mays/growth & development
5.
Braz. j. med. biol. res ; 35(6): 623-631, June 2002. ilus
Article in English | LILACS | ID: lil-309507

ABSTRACT

The interaction of the product of H2O2 and (PhSe)2 with delta-aminolevulinate dehydratase (delta-ALA-D) from mammals and plants was investigated. (PhSe)2 inhibited rat hepatic delta-ALA-D with an IC50 of 10 æM but not the enzyme from cucumber leaves. The reaction of (PhSe)2 with H2O2 for 1 h increased the inhibitory potency of the original compound and the IC50 for animal delta-ALA-D inhibition was decreased from 10 to 2 æM. delta-ALA-D from cucumber leaves was also inhibited by the products of reaction of (PhSe)2 with H2O2 with an IC50 of 4 æM. The major product of reaction of (PhSe)2 with H2O2 was identified as seleninic acid and produced an intermediate with a lambdamax at 265 nm after reaction with t-BuSH. These results suggest that the interaction of (PhSe)2 with mammal delta-ALA-D requires the presence of cysteinyl residues in close proximity. Two cysteine residues in spatial proximity have been recently described for the mammalian enzyme. Analysis of the primary structure of plant delta-ALA-D did not reveal an analogous site. In contrast to (PhSe)2, seleninic acid, as a result of the higher electrophilic nature of its selenium atom, may react with additional cysteinyl residue(s) in mammalian delta-ALA-D and also with cysteinyl residues from cucumber leaves located at a site distinct from that found at the B and A sites in mammals. Although the interaction of organochalcogens with H2O2 may have some antioxidant properties, the formation of seleninic acid as a product of this reaction may increase the toxicity of organic chalcogens such as (PhSe)2


Subject(s)
Animals , Cattle , Rats , Cucumis sativus , Hydrogen Peroxide , Liver , Organoselenium Compounds , Porphobilinogen Synthase , Analysis of Variance
6.
Rev. bras. anal. clin ; 30(4): 185-7, 1998. tab, graf
Article in Portuguese | LILACS | ID: lil-246318

ABSTRACT

SÄo apresentados os resultados de 23 exames parasitológicos de fezes coletadas com conservador MIF e analisadas pelo método preconizado por Hoffman, Pons & Janer no Laboratório de Saúde Pública/FFB/UFJF e, de 9 análises bacteriológicas da água consumida na residência de 7 escolares da EMEI "Sant'Ana Itatiaia" - Juiz de Fora - MG, segundo a metodologia empregada no Laboratório de Análise de Alimentos e Saneamento de Aguas/FFB/UFJF. O estudo foi desenvolvido nos meses de Agosto a Outubro de 1994 em escolares com idade entre 4 e 6 anos e de ambos os sexos. A percentagem das amostras de fezes positivas foi de 56,52 porcento e a de negativas de 43,48 porcento. A etiologia das enteroparasitoses de maior incidência na populaçäo estudada foi: Entamoeba coli (38,89 porcento), Ascaris lumbricoides (27,78 porcento), Trichuris trichiura (11,11 porcento), Giardia lamblia (11,11 porcento) e Entamoeba histolytica (11,11 porcento). Das amostras analisadas, 17,39 porcento revelaram a presença de mais de um parasita. Apesar de näo ter sido possível correlacionar a etiologia das enteroparasitoses com uma provável veiculaçäo hídrica das mesmas, verificou-se que 61,11 porcento das amostras de fezes examinadas revelaram a presença de protozoários e, ainda, que 60 porcento das amostras de água oriundas de outras fontes que näo o abastecimento público, foram consideradas impróprias para o consumo como bebida. Tais dados reforçam a necessidade de medidas administrativas eficientes para a implantaçäo e melhoria do saneamento básico, pois näo existe saúde sem infra-estrutura sanitária


Subject(s)
Humans , Male , Female , Child, Preschool , Child , Intestinal Diseases, Parasitic/etiology , Feces/parasitology , Health Infrastructure , School Health Services , Trichuriasis , Water Consumption (Environmental Health) , Ascaris lumbricoides , Entamoeba histolytica , Eukaryota , Giardia lamblia , Incidence , Trichuris
7.
Arq. bras. med. vet. zootec ; 48(supl. 1): 125-32, mar. 1996. tab
Article in Portuguese | LILACS | ID: lil-257057

ABSTRACT

No reservatório da Usina Hidrelétrica de Itutinga, da Companhia Energética de Minas Gerais (CEMIG), realizou-se um experimento no período de outubro de 1992 a abril de 1993. Estudaram-se os efeitos da frequência de alimentaçäo (1, 3 e 5 vezes/dia) e densidade de estocagem (40 e 80 peixes/m cúbico) sobre o desempenho produtivo do Piararactus mesopotamicus, com peso médio inicial de 23,8 mais ou menos 0,77g e comprimento médio total de 10,5 mais ou menos 0,17 cm. Os resultados de ganho de peso total e diário (g), taxa de crescimento relativo e específico (porcentagem), crescimento médio (cm) foram maiores nas frequências de 3 e 5 vezes ao dia (P<0,05) independente da densidade de estocagem. A estocagem de 80 peixes/m cúbico e arraçoamento parcelado em 3 vezes ao dia proporcionam melhores resultados de crescimento de pacus estocados em tanques-rede


Subject(s)
Animals , Animal Feed , Fishes
8.
Arq. bras. med. vet. zootec ; 48(supl. 1): 133-40, mar. 1996. tab
Article in Portuguese | LILACS | ID: lil-257058

ABSTRACT

Este trabalho foi realizado em tanques-rede instalados na represa da Usina Hidrelétrica (UHE) de Itutinga-MG da CEMIG, durante 341 dias. O objetivo foi estudar níveis de proteína bruta (PB) na raçäo (20, 26 e 32 por cento) e densidade de estocagem (30, 60 e 90 peixes/m cúbico) para alevinos de pacu (Piaractus mesopotamicus Holmberg, 1887), com aproximadamente 90 dias de idade. O delineamento foi inteiramente casualizado, com os tratamentos arranjados em esquema fatorial 3x3 (níveis de proteína x densidade de estocagem) com 3 repetiçöes por tratamento. As raçöes experimentais apresentaram valores de energia bruta de aproximadamente 4000 kcal/kg, na forma peletizada. Os resultados apresentaram efeito quadrático dos níveis protéicos sobre o ganho de peso total (g), ganho de comprimento total (cm) e biomassa média final (kg/m cúbico), sendo que os melhores índices foram obtidos com o valor médio de PB de 28,1, 28,4 e 27,9 por cento respectivamente. O aumento da densidade de estocagem reduziu linearmente o ganho de peso total, ganho de comprimento total e aumentou a biomassa média final


Subject(s)
Animals , Animal Feed , Fishes , Proteins
9.
Braz. j. med. biol. res ; 23(5): 441-9, 1990. ilus
Article in English | LILACS | ID: lil-91935

ABSTRACT

1. The reproduction of the snail Biomphalaria glabrata, one of the intermediate hosts of Schistosoma mansoni, was evaluated under laboratory conditions by measuring egg production, number of ovipositions, number of eggs per oviposition, and hatching rate using a Latin square design with five different temperature treatments. This permitted the elimnation of occasional variation in oviposition due to manipulation or a priori group. 2. Egg production and spawning rates were higher at temperatures between 20.0 and 27.5-C than at 17.5-C. Number of eggs per spawning and hatching rate did not vary with temperature. 3. During a 3-day adaptation phase, a short-term therminal effect appeared in chich some indices of reproductive rates differed signifcantly from those of the experimental phase


Subject(s)
Animals , Biomphalaria/physiology , Oviposition , Temperature , Adaptation, Physiological , Reproduction
10.
Mem. Inst. Oswaldo Cruz ; 83(1): 79-85, Jan.-Mar. 1988. ilus
Article in English | LILACS | ID: lil-65187

ABSTRACT

The crossbreeding activities of the Schistosoma mansoni vector snail Biomphalaria glabrata were counted in a laboratory aquarium throughout the year under two regimes of 12h light: 12h dark from 7 A., M. to 10 P. M. Mating increased significantly in Authmn and Winter and just missed a significant inverse correlation with temperature and a direct one with locomotion. Other similar experiments were carried out to compare mating under various ilumination conditions in complete daily cycle measurements. Mating counts decreased under the regimes which submited snail to a total exposure of 12h light and 12 dark during a daily cycle in the following sequence: 12h light: 12h dark alternating hourly with light gradient, 12h light: 12h dark, 1h light: 1h dark and 12h dark: 12h light. Under two constant illuminations, the mating scored less than under the previous conditions, except under 12h light. Under darkeness the mating count was lower than light conditions. There was no way to differentiate the night and day rhythms of mating on different days in each regime, except for mating under 12h light: 12 dark alternating with light gradient, constant dark and 12h dark: 12h light conditions. Mating increased in certain light and temperature conditions, in wich the intensities, should have an optimum value


Subject(s)
Biomphalaria/physiology , Lighting , Sexual Behavior, Animal/physiology , Seasons
11.
Braz. j. med. biol. res ; 20(6): 685-96, 1987. ilus, tab
Article in English | LILACS | ID: lil-77416

ABSTRACT

1. Reproduction in the snail Biomphalaria glabrata, a vector of Schistosoma mansoni, was measured by egg production and other paramneters such as number of clutches, eggs per clutch and egg hatching, under laboratory conditions. 2. Reproductive rates were highest in terms of total number of eggs, clutches and hatching under constant illumination, followed by conditions similar to the natural rhythm of illumination. The greatest reduction in reproduction occurred in constant darkness. in summary, reproductive rate was dependent on both the intensity of absolute illumination and the schedule of illumination exposure. 3. Seasonal variation in reproductive rate appeared to vary inversely with local temperature in Belo Horizonte, situated in a tropical zone (latitude 20 S) owing probably to a temperature prefernce of 20 to 25-C by the snail. the highest reproductive rates occurred in winter, except for the parameter eggs per clutch which was maximal in autumn. Snail reproduction appeared to be most reduced during summer. There was no linear correlation between reproductive rate and temperature


Subject(s)
Rats , Animals , Biomphalaria/physiology , Lighting , Reproduction , Seasons , Temperature
12.
J. bras. urol ; 10(4): 142-4, 1984.
Article in Portuguese | LILACS | ID: lil-23448

ABSTRACT

Os autores descrevem dois casos de hidronefrose fetal detectados durante o pre-natal pelo ultra-som. A ultra-sonografia pre-natal permite estudar o trato urinario fetal e detectar, intra-utero, anomalias do mesmo. Discutem-se o impacto desse diagnostico e as possibilidades terapeuticas


Subject(s)
Pregnancy , Humans , Female , Fetal Diseases , Hydronephrosis , Prenatal Diagnosis , Ultrasonography
13.
Arq. bras. oftalmol ; 45(2): 66-9, 1982.
Article in Portuguese | LILACS | ID: lil-8071

ABSTRACT

Os autores apresentam 5 casos pacientes politraumatizados, com ferimentos de face, palpebra e globo ocular, que tiveram pronto atendimento, em hospitais gerais, com cuidados para as lesoes faciais e com um retardo de 2 a 7 dias no diagnostico e tratamento do ferimento perfurante do globo ocular. Ressaltam os danos que tal retardo pode acarretar e computam o fato a desinformacao, do medico plantonista. Enfatizam a necessidade do ensaio de oftalmologia preventiva e conduta frente o provavel ferimento ocular aos graduandos, assim como o desenvolvimento de programas de educacao sanitaria em oftalmologia


Subject(s)
Adult , Humans , Male , Female , Eye Injuries , Wounds, Stab , Accidents, Traffic
14.
J. pediatr. (Rio J.) ; 52(6): 44l-6, 1982.
Article in Portuguese | LILACS | ID: lil-9064

ABSTRACT

O autor aponta algumas queixas frequentemente levadas ao consultorio do Pediatra, que podem ser classificadas como disturbios do comportamento. Faz um esboco do que seja a Psicologia do Comportamento e uma breve explicacao de como o psicologo modificador de comportamento - trabalha.Estabelece um paralelo entre a Psicologia do Comportamento e a Medicina. Mostra como seria a atuacao do Pediatra Modificador de Comportamento, como um educador. Descreve a atuacao do Pediatra Modificador de Comportamento, bem como a experiencia com estudantes de medicina, como seus auxiliares Relata alguns casos em sua Clinica e a conduta para cada um deles


Subject(s)
Humans , Behavioral Medicine , Pediatrics , Psychology
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