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| Registros recuperados: 2.570 | |
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| Yang,Kiwook; Park,Jae-Hee; Jung,Soo-Jung; Lee,Hyunsu; Choi,In-Jang; Lee,Jae-Ho. |
| Total knee arthroplasty has increased substantially, however anatomical studies of the genicular arteries (GAs) in this region are rare. The aim of this study was to identify the pattern and branching points of GAs and their relationship. In 42 lower limbs, the pattern and branching points of GAs were confirmed. The horizontal line which extends between the most prominent point of the lateral and medial margins of patella was defined as a reference line. The distance of branching point of the GAs from the reference line was measured, and the correlations between these points were analyzed. The superior lateral and medial genicular arteries (SLGA and SMGA) were located at + 38.17 ± 3.10 mm and + 32.68 ± 3.83 mm from the reference line, respectively. The... |
| Tipo: Journal article |
Palavras-chave: Genicular artery; Popliteal artery; Topography; Variations. |
| Ano: 2017 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022017000300019 |
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| Almeida,María de; Lanata-Flores,Antonio; Olate,Sergio; Pozzer,Leandro; Cantín,Mario; Vásquez,Bélgica; Albergaria-Barbosa,José de. |
| El torque de remoción es utilizado para estudiar el comportamiento de implantes y su oseointegración. El objetivo de esta investigación fue determinar el torque de retiro de implantes dentales con defectos óseo asociados de tipo fenestración. Seis perros (Canis familiaris) fueron en semejantes condiciones de peso y talla seleccionados para la investigación. Se realizó un acceso quirúrgico al fémur del animal sitio donde se instalaron 3 implantes, realizándose defectos circulares de 5mm en cada implante. El defecto fue cubierto con membrana absorbible (colágeno), membrana no absorbible (celulosa) o sin cobertura (control). Los animales fueron sometidos a eutanasia a las 3 semanas y a los 8 semanas, momento en que se les realizó el torque de retiro a los... |
| Tipo: Journal article |
Palavras-chave: Torque retiro; Oseointegración; Regeneración ósea. |
| Ano: 2013 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022013000200058 |
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| Catroxo,M. H. B; Nishiya,A; Sabino,E; Teixeira,P. S; Petrella,S; Milanelo,L; Vieira,J.C.F; Diaz,R. S. |
| Torque Teno virus (TTV) is an infectious agent of worldwide distribution isolated by the first time as the agent of an acute post-transfusion hepatitis in a patient in Japan. It has been classified into a new floating genus called Anellovirus. Recent studies showed that TTV can also be identified in serum specimens obtained from domesticated farm animals and from non-human primates. To better understand the relationship between TTV and their hosts, a study to detect virus in the serum and whole blood of Brazilian non-human primates and in the plasm of chickens was performed by applying the PCR-UTR-A technique, followed by a genomic sequence and phylogenetic analysis. By nested-PCR-UTR, the DNA of TTV was detected in sera from 4 (5.3%) of 75 Cebus apella, 2... |
| Tipo: Journal article |
Palavras-chave: Torque Teno Virus; Torque Teno Minivirus; Non-humans primates; Untranslated region; Nucleotide sequencing. |
| Ano: 2008 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022008000200018 |
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| Oluyemi,Kayode A; Okwuonu,Uche C; Baxter,D. Grillo; Oyesola,Tolulope, O. |
| Effects of graded dosages of methanolic extract of Aspilia Africana were examined on the estrous cycle, uterine weights and histology to determine its effects on the reproductive functions of 25 cyclic female rats. The rats were randomized into five groups A, B, C, D, and E. They were given Omg/kg body weight, 150 mg/kg body weight, 200 mg/kg body weight, 250 mg/kg body weight, and 300 mg/kg body weight, respectively. The effect on the estrous cycle was determined by vaginal lavage while routine histological preparations were done with haematoxylin-eosin stains. All values were statistically compared at appropriate confidence intervals. Estrous cycles were significantly reduced in a dose-dependent manner and histology revealed a dose-dependent toxicity |
| Tipo: Journal article |
Palavras-chave: Aspilia africana; Estrous; Uterine weight; Histology; Reproductive functions. |
| Ano: 2007 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022007000300023 |
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| Rodero,Ademir Barianni; Rodero,Lucas de Souza; Azoubel,Reinaldo. |
| Sucralose is a non-nutritive artificial sweetener, 600 times sweeter than sucrose, and is very stable at high temperatures, among other characteristics. It was approved by the FDA, in 1999, to be utilized in foods, beverages, pharmaceutical products, diets and vitamin supplements. Studies suggest a diffusion, through the placental barrier, of small doses of sucralose and its metabolites. Its hydrolysis products (4-CG e 1,6-DCF) are more rapidly absorbed than sucralose: 4-CG is excreted intact in the urine, and 1,6-DCF undergoes reduction with elimination by the urine or rapid conjugation with glutathione. Various organs can be affected by ingestión of high doses of sucralose. As a result of the rise in global consumption of sweeteners and light- or... |
| Tipo: Journal article |
Palavras-chave: Sucralose; Sweetener; Toxicology. |
| Ano: 2009 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022009000100040 |
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| Patil,Sharanabasappa A; Patil,Saraswati B. |
| An attempt to find out the male contraceptive molecule of plant origin, the extracts of seeds of Momordica charantia were tested in male mice. Petroleum ether, chloroform and ethanolic extracts of Momordica charantia were administered at the dose level of 25mg/100gm body weight to the albino mice for 48 days intraperitoneally. All the extracts showed antispermatogenic effect as the number of spermatogonia, spermatocytes, spermatids and spermatozoa were decreased. The increase in the weight of epididymis, prostate gland, seminal vesicle and vas deferens indicates clearly the androgenic property of these extracts. After subjecting to preliminary phytochemical screening ethanol extract showed positive tests for alkaloids, flavonoids, glycosides, phenols,... |
| Tipo: Journal article |
Palavras-chave: Momordica charantia Linn; Toxicological; Androgenic; Testis; Spermatogenesis. |
| Ano: 2011 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022011000400024 |
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| Ochoa-Amaya,J. E; Ciuoderis-Aponte,K. A; Lim,A; Bolin,S; Langohr,I. |
| Los objetivos del estudio fueron presentar y documentar los hallazgos histopatológicos de toxoplasmosis sistémica en un canguro rojo (Macropus rufus) mantenido en cautiverio donde se describen los hallazgos macro y microscópicos encontrados y los análisis adicionales realizados. En el laboratorio de histopatología animal (Universidad de los Llanos) se recibieron muestras de tejidos fijados en formol tamponado, al 10% que procedían de un ejemplar macho de Macropus rufus, de ocho años de edad y 50 kg de peso corporal. Las muestras se procesaron mediante métodos rutinarios para microscopía óptica. Los cortes histológicos de 3-4 mm de grosor se colorearon con Hematoxilina-Eosina (H&E) y se realizó en algunos cortes la tinción de Ácido Periódico Schiff... |
| Tipo: Journal article |
Palavras-chave: Canguro; Toxoplasmosis; Taquizoitos; Bradizoitos. |
| Ano: 2012 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022012000100012 |
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| Artigas,Carmen Gloria; Melo,Angélica; Roa,Juan Carlos; Roa,Iván; Quijada,Ingrid; Vittini,Cecilia; Cabrera,María Elena; Risueño,Concepción. |
| La anormalidad citogenética más común en la leucemia mieloide crónica (LMC) es el cromosoma Philadelphia, producida por la t(9;22), cuya expresión molecular es el gen de fusión BCR-ABL, que codifica proteínas con actividad tirosinquinasa. Según el punto de ruptura de los genes BCR o ABL se produce una proteína de fusión de 210-kD(p210) o 190-kD(p190). La presencia de este gen de fusión en pacientes con LMC tiene implicancia diagnóstica. Con el propósito de detectar transcriptos de fusión del gen BCR/ABL en pacientes con leucemia mieloide crónica, procedentes de la IX Región de Chile, se estudiaron 14 muestras de sangre de 11 pacientes con LMC. A 2 de ellos, se les realizó seguimiento durante su tratamiento con Gleevec. Se aplicó la técnica de reacción en... |
| Tipo: Journal article |
Palavras-chave: BCR/ABL; RT-PCR; Leucemia mieloide crónica; Chile. |
| Ano: 2003 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022003000300004 |
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| Esponda,Pedro. |
| The production of transgenic animals (TA) using transfected spermatozoa or eggs is commented. Different methods have been employed to introduce transgenes into the gametes of several vertebrates and invertebrates. Methods for the transfection of gametes have employed naked DNA, viral vectors, DNA/Liposome complexes, electroporation or high velocity microprojectiles. Spermatozoa and oocytes or eggs have showed a good transfection efficience (80% in some cases), and microscopical observations demonstrated that the transgenes appeared localized in the nucleus. Gametes have shown to be naturally protected against the entrance of foreign genes because some semino plasma or plasma membrane proteins block the entrance of foreign genes in spermatozoa. In the... |
| Tipo: Journal article |
Palavras-chave: Eggs; Oocyte; Spermatozoa; Transfection; Transgenic animals. |
| Ano: 2005 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022005000300017 |
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| Namulawa,V. T; Kato,C. D; Nyatia,E; Rutaisire,J; Britz,P. J. |
| The ultrastructure of the gastrointestinal tract of Nile perch was described using Transmission Electron Microscopy standard procedures. Investigations revealed the presence of mucous cells, blood vessels and oil droplets plus several nerve cells and muscle bundles in the oral cavity. Further observations revealed columnar epithelial cells in the oesophagus, with a ragged surface, high electron dense cytoplasm, intercellular spaces, mitochondria and mucus granules. The lamina propria of the oesophagus was composed of loose connective tissue, blood vessels, nerve cells and several leucocytes, while the muscularis externa was composed of striated muscle bundles with the a Z line, A band and I band. The stomach was characterized by mucosal glandular cells... |
| Tipo: Journal article |
Palavras-chave: Ultrastructure; Gastrointestinal tract; Nile perch. |
| Ano: 2015 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022015000200053 |
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| Farfán,Emilio; Matamala,Fernando. |
| Actualmente las patologías compresivas de nervios espinales son de alta incidencia. Como una forma de contribuir con fundamentos morfológicos a la aplicación de ultrasonido terapéutico se realizó la presente experiencia, que se refiere a la reparación de los nervios espinales luego de una injuria compresiva. Para esto se utilizaron 9 ratas Sprague Dawley las cuales fueron separadas en tres grupos con 3 ratas cada uno: A) control sano, B) control lesionado y C) aplicación de ultrasonido terapéutico de 1w/cm2. Las ratas de los grupos B y C fueron anestesiadas y se les aisló quirúrgicamente el nervio isquiático, el cual fue pinzado durante 45 segundos con una fuerza constante de 40N. La compresión se realizó a 10mm sobre su bifurcación distal, luego se... |
| Tipo: Journal article |
Palavras-chave: Nervio isquiático de rata; Neuropraxia; Ultrasonido terapéutico. |
| Ano: 2011 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022011000300019 |
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| Registros recuperados: 2.570 | |
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