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Variations of Celiac Artery in Dogs: Anatomic Study for Experimental, Surgical and Radiological Practice International Journal of Morphology
Abidu-Figueiredo,M; Dias,G. P.; Cerutti,S; Carvalho-De-Souza,B; Maia,R. S.; Babinski,M. A..
The purpose of this study is gain a better understanding of the anatomical variations of celiac artery and its branches in dogs. The celiac artery supply was analyzed in thirty dogs.The animals were injected with solution of Petrolatex S65 and dissected to evidence the celiac artery origin and its proximal ramifications. The celiac artery and its proximal branches were dissected and lengthen. The celiac artery more frequently emerged ahead of the first lumbar vertebra in one way form. The medium length of the celiac artery was of 0.98 cm. The gastrolienal trunk was the predominant morphological arrangement with medium length of 0.19 cm. The lienal artery emerged in one way form emitting more frequently 2 main branches. A branch emerging of the celiac...
Tipo: Journal article Palavras-chave: Dog; Celiac artery; Anatomy.
Ano: 2005 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022005000100007
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Variations of the Vocal Fold Epithelium in a Menopause Induced Model International Journal of Morphology
Oyarzún,Patricia; Sepúlveda,Alfredo; Valdivia,María; Roa,Ignacio; Cantín,Mario; Trujillo,Gonzalo; Zavando,Daniela; Suazo Galdames,Iván.
During menopause, changes occur in the laryngeal structures that have implications for the voice. The purpose of this study was to determine the effect of induced menopause on the morphological parameters of the vocal fold mucosa in rats. Ten adult female Sprague-Dawley rats were used as samples and divided into two groups: 5 were surgically oophorectomized (OVX), and 5 underwent a surgical procedure similar to oophorectomy but without removal of the ovaries (SHAM). After 30 days surgery, the characteristics of the epithelium that forms the vocal fold mucosa in terms of cellular arrangement and organization of the epithelium were observed. Through the Morphometrics XS software, the epithelial height and the number and density of cellular layers were...
Tipo: Journal article Palavras-chave: Fold vocal; Voice; Menopause; Oophorectomy.
Ano: 2011 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022011000200011
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Variations of Thoracic Splanchnic Nerves and its Clinical Implications International Journal of Morphology
Jacob,Tony George; Wadhwa,Surbhi; Paul,Shipra; Das,Srijit.
The present study reports an anomalous branching pattern of the thoracic sympathetic chain. At the level of T3 ganglion, an anomalous branch i.e accessory sympathetic chain (ASC) descended anteromedial to the main sympathetic chain (MSC). The MSC and the ASC communicated with each other at the level of T9, T10 and T11 ganglion, indicating the absence of classical pattern of greater, lesser and least splanchnic nerves on the right side. However, on the left side, the sympathetic chain displayed normal branching pattern. We opine that the ASC may be representing a higher origin of greater splanchnic nerve at the level of T3 ganglion and the branches from MSC at T9, T10 and T11 ganglion may be the lesser and least splanchnic nerves, which further joined the...
Tipo: Journal article Palavras-chave: Splanchnic nerves; Sympathetic chain; Trunk thoracic; Ganglion.
Ano: 2005 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022005000300010
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Variedades Anatómicas del Árbol Biliar: Implicancia Quirúrgica International Journal of Morphology
Tolino,Mariano José; Tartaglione,Ana Sofía; Sturletti,Carlos Diego; García,Mariana Ivon.
La anatomía de las vías biliares presenta frecuentes variaciones. La anatomía "normal" se describe en aproximadamente la mitad de los casos. Las variedades de las vías biliares deben ser conocidas por los médicos especialistas en diagnóstico por imágenes y cirujanos hepatobiliares, a fin de optimizar su desempeño en sus respectivas áreas. Con ese fin fueron estudiadas en forma prospectiva 690 colangiografías (538 intra-operatorias; 90 resonancias; y 62 trans-catéteres biliares). Se utilizó la clasificación de Blumgart y los resultados fueron: tipo A: 284 (41,16%); B: 178 (25,80%). C1: 110 (15,94%); C2: 38 (5,51%).; D1: 8 (1,16%); D2: 23 (3,33%); E1: 18 (2,61%); E2: 27 (3,91%); F: 4 (0,58%). Como conclusiones, es importante señalar que: a) la colangiografía...
Tipo: Journal article Palavras-chave: Vías biliares; Anatomía; Cirugía; Colangiografías.
Ano: 2010 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022010000400039
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Variety discrimination of Tigridia pavonia (L.f.) DC. assesed by different length RAPD primers Electron. J. Biotechnol.
Piña-Escutia,José Luis; Vázquez-García,Luis Miguel; Arzate-Fernández,Amaury Martín.
Tigridia pavonia (L.f.) DC. is one of the important phytogenetic resources of México. This species is used as ornamental, food and medicinal purposes. Despite its ornamental and economic potential, there is little information about the genetic variability. In this study, randomly amplified polymorphic DNA (RAPD) primers of 10, 15 and 20 bases were used to assess the level of genetic variation among nine botanical varieties of Tigridia pavoniacollected in three localities within State of México. The total number fragments, polymorphic fragments, percentage of polymorphism and resolving power were greater for 15 base (55, 52, 94.5 and 5, respectively) and 20 base (47, 45, 95.7 and 3.8, respectively), in comparison with those obtained from 10 base primers...
Tipo: Journal article Palavras-chave: Genetic resources; RAPD; Tigridia pavonia; Variety discrimination.
Ano: 2010 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582010000400010
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Vas Deferens Surface Epithelium of Agouti paca: Fine Structural Features International Journal of Morphology
Orsi,Antonio M; Simões,Karina; Domeniconi,Raquel F; da Cruz,Claudinei; Machado,Márcia R. F; Filho,Joffre G.
The surface epithelium of the vas deferens of Agouti paca, a wild and large South American rodent, was basically formed by principal and basal cells being only the principal cells related to endocytosis processes and also secretion taking base on their cytoplasmic ultrastructural features. Principal cell of vas deferens epithelium were characterized mainly by presence of vesicles with several shapes, sizes and internalized content at their apical cytoplasm occurring smaller pits and pale small vesicles seen next to the apical brush border of microvillus. Moreover, coated vesicles, smooth surface vesicles and great vesicles; multivesicular bodies, endosomes and lysosomes were seen. Presence of an apocrine secretory apparatus was also viewed, showing apical...
Tipo: Journal article Palavras-chave: Vas deferens epithelium; Fine structure; Histophysiology; South American rodent.
Ano: 2009 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022009000100016
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Vasa Vasora in the Tunica Media of Goat Aorta International Journal of Morphology
Ogeng'o,Julius A; Mwachaka,Phillip M; Olabu,Beda O.
This study aimed at describing the distribution of vasa vasora in the tunica media of various parts of goat aorta, since this influences the physico-mechanical properties and disease occurrence. Specimens were obtained from ascending, arch, each vertebral level of descending thoracic and various segments of abdominal aorta of sixteen healthy adult male domestic goats (Capra hircus). They were fixed in 10% formaldehyde solution, and routinely processed for paraffin embedding. Seven micron thick sections were stained with Mason's Trichrome stain. Vasa vasora are present in the tunica media of all the aortic segments. In the proximal segments, they co-localize with muscle islands found in the adventitial half. Their density declines caudally, but they are...
Tipo: Journal article Palavras-chave: Vasa vasora; Aorta; Goat.
Ano: 2011 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022011000300006
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Vascular flora in public spaces of Santiago, Chile Gayana Botánica
FIGUEROA,JAVIER A; TEILLIER,SEBASTIÁN; GUERRERO-LEIVA,NICOLE; RAY-BOBADILLA,CRISTIAN; RIVANO,SIMONÉ; SAAVEDRA,DIEGO; CASTRO,SERGIO A.
After an extensive two-year long research effort, the results document the diversity of vascular plants that grow in the public spaces of Santiago, Chile. We analyze the taxonomic composition, life-forms and phytogeographic origin of the vascular flora of Santiago and, finally, we compare the results with those of urban areas in the Northern Hemisphere. We identified 508 species, 100 families, and 338 genera. The families that showed the greatest richness were Asteraceae and Poaceae. We found that at least 85.1% of the species are exotic. The life-forms are similarly represented, although chamaephytes and geophytes are poorly represented. We conclude that the composition of the urban flora of Santiago differs from that of most Northern Hemisphere cities,...
Tipo: Journal article
Ano: 2016 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-66432016000100011
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Vascular Pattern of Chorionic Blood Vessels of Placenta and its Correlation with the Birth Weight of Neonate International Journal of Morphology
Verma,Ranjana; Prasad,Renu; Mishra,Sabita; Kaul,Jagat Mohini.
Two hundred fresh full term placentae of normal pregnancies were collected from the department of Obstetrics and Gynaecology, RIMS, Ranchi, Jharkhand, India to observe the incidence of vascular pattern of chorionic blood vessels of placenta and to note the relationship between vascular pattern of placenta and the birth weight of neonate. Dye was injected into umbilical vessels under normal physiological pressure and diameter of chorionic blood vessels were taken at the centre and periphery. Two types of vascular pattern of chorionic blood vessels of placentae were observed- Dispersal and Magistral. Dispersal pattern was found in 63% cases and magistral pattern was observed in 37% cases. An interesting observation was noted that the birth weight of neonate...
Tipo: Journal article Palavras-chave: Placentae; Vascular pattern; Chorionic blood vessels; Birth weight; Neonate.
Ano: 2012 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022012000300031
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Vascular plant assemblages of ephemeral wetland vegetation along the Mediterranean-temperate gradient in Chile Gayana Botánica
ALVAREZ,MIGUEL; DEIL,ULRICH.
Plant species composition and geographical distribution of vernal pools in Mediterranean Chile are poorly studied. In order to overcome this gap we collected 73 floristic samples in the Mediterranean-temperate gradient from Chile (31- 44°S). Additionally, we carried out an exhaustive collection of published phytosociological relevés made in this area including some relevés from the East side of the Andes in Argentina. The resulting dataset contains 228 observations of 269 species. Hierarchical clustering was applied in order to get co-occurrence assemblages. These sets were compared with diagnostic groups defined a priori, life forms and their status in South America (introduced vs native species). In order to detect geographic and climatic distribution...
Tipo: Journal article
Ano: 2015 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-66432015000200002
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Vascularidad Arterial Extraglandular de la Próstata del Perro International Journal of Morphology
Olivares,Ricardo; Aguayo,Mireya.
La próstata es la glándula accesoria sexual más importante del perro, ubicada en el canal pélvico, retroperitoneal y caudal a la vejiga, envolviendo completamente la uretra pélvica en su salida del cuello vesical. Su función es producir líquido seminal que provea de un medio ambiente óptimo para la sobrevida y motilidad espermática. Pudiendo verse afectada por una serie de procesos patológicos tales como: Hiperplasia prostática benigna y neoplasias. El objetivo del presente trabajo, fue describir la distribución de los vasos sanguíneos arteriales extraglandulares de la próstata canina, como un factor de importancia y utilidad, para la comprensión del control fisiológico y de ciertos procesos patológicos de dicha glándula, para su posterior abordaje...
Tipo: Journal article Palavras-chave: Próstata; Irrigación; Perro.
Ano: 2014 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022014000400025
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Vasculatura Portal Intrahepática: Descripción Anatómica, Radiológica y Ecográfica International Journal of Morphology
Pidal,Gabriela; Oribe,Gabriela C; Arrayago,Ignacio G; Curra-Gagliano,Federico J; D'Anna,Elena B; Martín,Esteban G.
El presente trabajo describe la arborización del sistema venoso portal intrahepático desde los enfoques anatómico, radiológico y ecográfico. Se realizaron 5 preparados anatómicos mediante inyección de resinas plásticas y posterior corrosión. Por radiología se contrastó el árbol portal en una pieza anatómica. Se realizaron estudios ecográficos bidimensionales y Doppler en 13 caninos de raza Beagle. Estos procedimientos permitieron a los autores comparar la tridimensionalidad de los preparados anatómicos con la bidimensionalidad de los estudios por imágenes.
Tipo: Journal article Palavras-chave: Canino; Circulación portal; Portografía; Ultrasonografía; Doppler.
Ano: 2014 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022014000300026
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VCP1 PROTEASE DETECTION IN Pochonia chlamydosporia var. CATENULATA STRAIN IMI SD 187 Rev. Protección Veg.
Peteira-Delgado,B; Hidalgo-Díaz,L.
The mode of action of Pochonia as a biological control agent is the penetration by means of the hyphae into the target nematode eggs. The egg shell of nematodes has an outer vitelline membrane composed mainly by proteins. Thus, hyphal penetration is the result of a physic pressure and the specific hydrolytic activity of some enzymes such as proteases and chitinases. The most important protease studied in Pochonia chlamydosporia var. chlamydosporia is VCP1. The aim of this work was to detect and characterize the protease VCP1 in a strain of P. chlamydosporia var. catenulata, a potential biological control agent for root-knot nematodes. The specific activity of this protease was tested on different culture media supplemented with protein inductors using...
Tipo: Journal article Palavras-chave: Nematode parasites; RFLP; Enzymes; Protease.
Ano: 2009 URL: http://scielo.sld.cu/scielo.php?script=sci_arttext&pid=S1010-27522009000300006
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Vegetation changes after 15 years of abandonment of crop fields in the Pampas region (Argentina) Ciencia e Investigación Agraria
Boccanelli,Silvia; Pire,Eduardo; Lewis,Juan.
Agriculture has been practised in the Argentine Pampa region for more than a century. This long history of disturbance has strongly modified the native vegetation of the region. Some original species have disappeared or its area has been remarkably reduced. The objective was to evalúate vegetation changes over time after the abandonment of agriculture practice. Our hypothesis was that over time vegetation in this region will evolve towards a "flechillar" (Stipa spp. community) similar to the original vegetation. The experiment was conducted at Zavalla (Santa Fe) Argentina (33° 01' S, 60° 53' W and 50 m.a.s.1.). Vegetation evolution was studied during 15 years (1982-1997) after abandonment, considering four initial crop situations (i.e. wheat, soybean,...
Tipo: Journal article Palavras-chave: Abandoned field; Agriculture; Disturbance; Secondary succession; Weeds.
Ano: 2010 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202010000200005
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Vegetative growth of two mulberry species (Morus multicaulis and M. alba) under greenhouse and field conditions Ciencia e Investigación Agraria
Johnston,Myrna; Olivares,Alfredo; Bustos,Yoespi.
Morus alba and Morus multicaulis, common ornamental species in Chile, were studied regarding their growth and dry matter production. In Santiago (Metropolitan Region), plants from vegetative propagation, one part growing under field conditions and the other in a plastic greenhouse were used; both with similar soil, water availability and cutting system (0.20 and 0.40 m). Periodically, four shoots per selected plant were measured for length, number of leaves and dry weight. Previously, a correlation between dry matter and foliar size (length, width, area) of each species was established to estimate the latter. Correlation coefficients obtained had a R² higher than 0.60 whereas the length and width used to estimate foliar area had an R² of 0.96 to M....
Tipo: Journal article Palavras-chave: Morus multicaulis; M. alba; Mulberries; Temperature regimes; Greenhouse; Vegetative growth.
Ano: 2011 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202011000100004
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VEGFA polymorphisms and cardiovascular anomalies in 22q11 microdeletion syndrome: a case-control and family-based study Biol. Res.
CALDERÓN,JUAN FRANCISCO; PUGA,ALONSO R; GUZMÁN,M. LUISA; ASTETE,CARMEN PAZ; ARRIAZA,MARTA; ARACENA,MARIANA; ARAVENA,TERESA; SANZ,PATRICIA; REPETTO,GABRIELA M.
Microdeletion 22q11 in humans causes velocardiofacial and DiGeorge syndromes. Most patients share a common 3Mb deletion, but the clinical manifestations are very heterogeneous. Congenital heart disease is present in 50-80% of patients and is a significant cause of morbidity and mortality. The phenotypic variability suggests the presence of modifiers. Polymorphisms in the VEGFA gene, coding for the vascular endothelial growth factor A, have been associated with non-syndromic congenital heart disease, as well as with the presence of cardiovascular anomalies in patients with microdeletion 22q11. We evaluated the association of VEGFA polymorphisms c.-2578C>A (rs699947), c.-1154G>A (rs1570360) and c.-634C>G (rs2010963) with congenital heart disease in...
Tipo: Journal article Palavras-chave: Congenital heart disease; DiGeorge syndrome; Genetic modifiers; VEGFA; Velocardiofacial syndrome.
Ano: 2009 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602009000400007
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VEINTICINCO AÑOS DE LA RED LATINOAMERICANA DE BIOLOGIA (RELAB) Biol. Res.
JEREZ,CARLOS.
Tipo: Journal article
Ano: 2001 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602001000200008
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VELOCIDAD DE SECADO DE ALFALFA BAJO DIFERENTES CONDICIONES DE RADIACIÓN SOLAR Y ANCHO DE HILERADO Agricultura Técnica
Jahn B.,Ernesto; Soto O.,Patricio; Cofré B.,Pedro; Sasmay M.,Rocío.
Se realizó un estudio para evaluar el efecto de diferentes niveles de radiación -*solar y ancho de hilerado en la velocidad de secado de alfalfa (Medicago sativa L.) destinada a ensilaje o heno. Las variables estudiadas fueron 3 anchos de hilerado: 0,9; 1,2 y 1,8 m, y 3 niveles de radiación solar obtenidas con malla sombreadora de 80, 50%, y un control sin malla. La pradera de alfalfa fue cosechada con una segadora acondicionadora por la mañana e hilerada según los tratamientos. El contenido de MS fue medido durante 2 días consecutivos a las 09:00, 14:00 y 17:00 h. La radiación solar y el ancho de hilerado afectaron significativamente (P <= 0,05) el porcentaje de MS de la alfalfa. A mayor ancho de hilerado la velocidad de secado fue mayor, y ésta...
Tipo: Journal article Palavras-chave: Premarchitamiento; Heno; Ensilaje; Medicago sativa L..
Ano: 2003 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0365-28072003000100005
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VELOCIDAD DE SECADO DE ALFALFA BAJO DIFERENTES CONDICIONES DE SECADO ARTIFICIAL Agricultura Técnica
Jahn B.,Ernesto; Avilés R.,Rodrigo; Barrales V.,Luis.
El objetivo del presente estudio fue determinar la tasa de secado de alfalfa (Medicago sativa L.), simulando en laboratorio diferentes condiciones de temperatura, ventilación y densidad de hilerado. La pradera de alfalfa fue segada manualmente y las muestras obtenidas se dispusieron en horno con y sin ventilación forzada a tres densidades: 4,78; 3,62; y 2,17 kg m-2, y a tres temperaturas: 20, 30 y 40ºC. Se evaluaron 18 tratamientos con cuatro repeticiones, a las que se determinó MS cada 3 h durante el día y se evaluó por un total de 53 h. Se utilizaron seis hornos. El aumento de la densidad del forraje produjo una disminución en la tasa de secado (TS) (P < 0,0001), además la TS se incrementó con el aumento de la temperatura y la ventilación. La TS fue...
Tipo: Journal article Palavras-chave: Medicago sativa L.; Velocidad; Secado; Temperatura; Densidad del forraje.
Ano: 2004 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0365-28072004000200005
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Vena Renal Izquierda Recurrente Retroaórtica: Reporte de una Rara Variación International Journal of Morphology
Inzunza H,Oscar; Inzunza A,Martín; Salgado A,Guillermo.
Este trabajo describe el trayecto aberrante de la vena renal izquierda detectado en un cadáver de sexo masculino, utilizado con fines docentes en nuestro Departamento de Anatomía, cuya causa de muerte fue un cuadro de neumonía intrahospitalaria. En este caso, la vena renal izquierda tiene un trayecto descendente de 89 mm, dispuesta a la izquierda de la aorta abdominal, entre los niveles vertebrales L II-L V. A la altura de la V vértebra lumbar la vena recurrente se curva hacia medial, pasando por dorsal de la aorta abdominal, para abocarse a la vena ilíaca común izquierda justo en el punto donde esta forma, junto con la vena homónima de la antímera derecha, la vena cava inferior. La vena renal izquierda recurrente tiene un calibre final de 14,86 mm y...
Tipo: Journal article Palavras-chave: Vena renal; Retroaórtico; Vena subcardinal; Variación Anatómica.
Ano: 2011 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022011000200005
Registros recuperados: 9.178
Primeira ... 449450451452453454455456457 ... Última
 

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