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| Registros recuperados: 2.570 | |
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| Hernández,Hilda; Rojas,Mariana. |
| En este estudio se describe el desarrollo post-eclosional de la médula espinal del salmón. Salmo salar. Se utilizaron 200 alevines recién eclosionados, los que fueron cultivados en el Centro de Estudios Acuícolas de la Universidad de Chile. Las condiciones ambientales de cultivo fueron de un 90% de saturación de oxigeno. La temperatura ambiental se mantuvo en 7°C. A los días 1, 3, 5 7 ds post-eclosión, 50 alevines por grupo etario fueron anestesiados y sacrificados por exposición a 5% Benzocaina diluida en agua (Kalmagin 20®, Farquímica). Posteriormente fueron fijados en formalina tamponada al 10% y procesados mediante técnica histológica. Para cada alevín se tomaron a nivel de la aleta dorsal un total de 40 cortes coronales seriados de 5µm de grosor, los... |
| Tipo: Journal article |
Palavras-chave: Médula espinal; Sistema nervioso; Neurogénesis; Alevín; Salmón. |
| Ano: 2013 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022013000100029 |
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| Scardina,G. A.; Messina,P.. |
| The aim of this study is to estudy lingual and labial microcirculation differences among healthy subjects and those with Hashimoto's thyroiditis affected by macroglossia. Twenty healthy patients and 20 patients suffering from Hashimoto's thyroiditis were examined. Labial and lingual capiUaroscopy were used to investigate the characteristics of microcirculation. For each patient we evaluated visibility, course, tortuosity and the possible presence of microhaemorrhages, average calibre of capillary loops and the number of visible capillary loops per square millimetre. The investigations of the labial and lingual mucous were simple, non invasive and repeatable for each patient. In Hashimoto's thyroiditis patients it was possible to observe a wide vascular... |
| Tipo: Journal article |
Palavras-chave: Oral capiUaroscopy; Hashimoto's thyroiditis; Macroglossia. |
| Ano: 2007 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022007000200028 |
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| Silva,Juan; Araya,Claudia. |
| Los huesos suturales son huesos supernumerarios observables en suturas y fontanelas del cráneo, variables en su número, forma, tamaño y posición. Formados desde centros de osificación normales y/o adicionales. Calleja en 1870, describe un hueso sutural en forma de anillo con un centro óseo (umbilicados). Nuestro objetivo de investigación, fue buscar y describir estos huesos. Se utilizaron 71 cráneos de adultos chilenos de ambos sexos, en los cuales se buscó, caracterizó, fotografió y midió a los huesos suturales umbilicados. Se hallaron dos cráneos con presencia de estos huesos, representando el 2,82 % del total de la muestra y el 8 % de los cráneos con huesos suturales. Los resultados concuerdan con la bibliografía, en cuanto a presencia de huesos... |
| Tipo: Journal article |
Palavras-chave: Huesos suturales; Huesos wormianos; Huesos del cráneo; Suturas y fontanelas del cráneo; Identificación médico legal. |
| Ano: 2016 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022016000200032 |
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| Alfaro-Burgos,S. |
| En América Latina la presencia del arsénico en el ambiente y en las fuentes de agua para consumo humano, se debe a factores naturales de origen geológico como a actividades antropogénicas. El arsénico en las aguas naturales se encuentra principalmente como trivalente (arsenito) o pentavalente (arsenato). El objetivo de este trabajo fue determinar las alteraciones que provoca el trióxido de arsénico a nivel de la morfología del bazo de ratas (Rattus norvegicus - Sprague-Dawley). Se utilizaron 24 ratas de ambos sexos de 55 días de vida. Las ratas fueron pesadas y divididas en 3 grupos (4 hembras y 4 machos). Los grupos tratados fueron inyectados con 5 mg y 10 mg de As2O3 respectivamente, en dosis única diaria vía intraperitoneal por 15 días. Al grupo control... |
| Tipo: Journal article |
Palavras-chave: Bazo; Trióxido de arsénico; Pulpa blanca; Pulpa roja; Rattus norvegicus. |
| Ano: 2013 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022013000300039 |
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| Pillay,P; Partab,P; Lazarus,L; Satyapal,K. S. |
| The formation of ansa cervicalis (AC) is somewhat complex with both its course and location along the common carotid artery and internal jugular vein (IJV) varying. The aim of the study was to document the anatomy, formation and variations of AC. Forty fetuses (gestational age: 15 to 28 weeks) were obtained from the Department of Clinical Anatomy, Westville Campus, UKZN. A detailed micro-dissection of the posterior triangle of the neck and AC were completed using standard micro-dissecting instruments. Results of the formation of AC, its relationship to IJV and variations were recorded. The superior root was identified as a long willowy nerve that branched from the hypoglossal nerve, descended on the carotid sheath, anterior to the common carotid artery and... |
| Tipo: Journal article |
Palavras-chave: Ansa cervicalis; Superior root; Inferior root; Hypoglossal nerve; Internal jugular vein. |
| Ano: 2012 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022012000400011 |
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| Inzunza,Oscar. |
| En los últimos decenios hemos asistido a proceso continuo de cambios en el ámbito de los ramos básicos de las carreras del área médica: 1) El progreso notable de algunas áreas del conocimiento científico como la biología molecular y la genética. 2) La inclusión en el currículo de cursos de ética y bioética. 3) La consecuente disminución del creditaje de los cursos de anatomía, histología y embriología. 4) Las dificultades para el acceso a financiamiento privado y público para investigaciones en temas morfológicos. 5) La escasa oferta de cursos de postgrado en el área morfológica. Irónicamente, estas condiciones desventajosas para la ciencia morfológica están ocurriendo en paralelo con los avances en las técnicas de imaginología médica, procedimientos que... |
| Tipo: Journal article |
Palavras-chave: Morfología; Educación; Desafíos; Currículo de pregrado. |
| Ano: 2014 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022014000300008 |
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| Akinloye,Adebayo Koyuum; Oke,Bankole Olusiji. |
| Morphology of the uterus and mammary glands were studied in sexually matured female African giant rat. The uterus was identified as being duplex, having two separate uterine horns and two cervices. The two cervices were partially fused and separated by a mid-saggital septum. Their thick musculatures projected caudally into the vagina as the portio vaginalis uteri. The results also showed that eight mammary glands, distributed along the lateral aspects of thoracic and inguinal regions, were present. The thoracic and the inguinal regions had four mammary glands each and were arranged in two pairs of cranial and caudal rows. These findings fill some gaps created by the dearth of information on the reproductive biology of the female African giant rat. |
| Tipo: Journal article |
Palavras-chave: Cervices duplex; Thoracic and inguinal regions. |
| Ano: 2010 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022010000100012 |
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| Uema,Rogério Takeyoshi; Fazan,Valéria Paula Sassoli; Cherri,Jesualdo; Piccinato,Carlos Eli. |
| The present study aimed to experimentally evaluate the protection role of glycerin preserved bovine peritoneum (BP) against intestinal adhesions to a vascular graft. Experiments were performed on 24 adult rabbits, randomly dived into two groups. All animals were submitted to a vascular graft over the infra-renal aorta and vena cava. Group 1(12 animals ) was submitted to a BP patch on the retroperitoneal opening, between the vascular prosthetic graft and the intestinal loops. Group II (12 animals ) had the retroperitoneal opening sutured. After 7, 14, 28 and 60 days, 3 animals of each group were randomly killed and the retro peritoneum, with or without the BPpatch, was removed for histological analysis. The histological analysis showed that the BP... |
| Tipo: Journal article |
Palavras-chave: Bovine peritoneum; Morphology; Aortoenteric fistula; Vascular graft. |
| Ano: 2008 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022008000200004 |
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| Whyte,Jaime; Martínez,Claudio; Cisneros,Ana; Whyte,Ana; Crovetto,Miguel Ángel. |
| El objetivo fue estudiar las peculiaridades en la morfología apical del canal semicircular superior, a nivel de la eminencia arcuata con la finalidad de obtener conclusiones aplicativas. Se estudiaron 48 cabezas de cadáveres humanos (96 huesos temporales), con la intención de identificar la presencia de adelgazamiento o dehiscencia del canal semicircular superior, así como la existencia de surcos vasculares de la eminencia acuata que, discurriendo sobre el techo del canal, pudieran afectar a su integridad anatómica. El estudio incluye un análisis histológico (Tricrómico de Martins) y radiológico (Tomografía Computarizada) de los hallazgos positivos (dehiscencias y adelgazamientos), así como estudio tomográfico de los canales con surcos vasculares visibles.... |
| Tipo: Journal article |
Palavras-chave: Canal semicircular superior; Dehiscencia; Pared adelgazada; Surcos vasculares. |
| Ano: 2012 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022012000300062 |
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| Mehrdad,Jahanshahi; Bahadoran,H; Asadi,M. H. |
| Sulphur mustard (SM), commonly known as mustard gas is an alkylating agent that causes serious blisters upon contact with human skin. SM is frequently used as a chemical warfare agent. There is some evidence for sulfur mustard-induced lymph system effects in humans. Between 2000-2001, 42 male albino Wistar rats were used. After accommodation with environment, we divided rats to control, sham and experimental groups (2.5 mg/kg, 5 mg/kg, 10 mg/kg, 20 mg/kg and 40 mg/kg). Then we injected sulphur mustard oil in rat's intraperitoneal space. Then their spleens were removed for histological verification. Our results showed that significant difference in lymphocytes number in experimental groups after 24 hours. The number of lymphocytes in 5, 10, 20 and 40 mg/kg... |
| Tipo: Journal article |
Palavras-chave: Mustard gas; Lymphocytes; Spleen. |
| Ano: 2008 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022008000200031 |
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| Ferreira Caetano,Mauricio; Manna Albertoni,Walter; Benedito Caetano,Edie; Montaño Pérez,Rodrigo. |
| En el análisis de los tendones de los músculos extensores radiales largo y corto del carpo, basados en la disección anatómica de 60 miembros superiores de cadáveres adultos de raza blanca y sexo masculino, registramos que las variaciones anatómicas no son muy frecuentes. La presencia de tendones accesorios ocurrió en apenas 3 manos disecadas, todas del músculo extensor radial largo del carpo. La presencia de vínculos tendinosos uniendo los tendones, fue registrada en 17 piezas. La presencia de un tendón intermedio uniendo los dos tendones, fue verificada en 4 piezas. La inserción del tendón del músculo extensor radial largo del carpo ocurrió, invariablemente, en el lado radial de la base del segundo metacarpiano y del músculo extensor radial corto en el... |
| Tipo: Journal article |
Palavras-chave: Anatomía; Músculos extensor radial largo y corto del carpo; Variación anatómica. |
| Ano: 2004 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022004000400001 |
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| Awobajo,F. O; Raji,Y; Akinloye,A. K. |
| Studies on testes and epididymis tissue of rats treated orally for fourteen days with therapeutic doses of cloxacillin (6mg/100g/day), ampicillin (4mg/100/day) and tetracycline (12mg/100g/day) separately showed a significant reduction in testicular and epididimis architecture. Microscopic studies of these male reproductive organs further revealed a significant alteration in the epididymis as revealed by a significant reduction (p<0.05) in epididymal ductular diameter (EDD), and epididymal epithelial height (EEH) in treated group of animals. A significant increase (p<0.05) was however recorded in epididymal luminal diameter (ELD) in all the animals after the two and three week's recovery period allowed. This gives another insight into the toxicity... |
| Tipo: Journal article |
Palavras-chave: Antibiotics; Testes; Epididymis; Histomorphometry. |
| Ano: 2010 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022010000400047 |
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| El-Shahat,Abd El-Rahman; Gabr,Attia; Meki,Abdel-Raheim; Mehana,El-Saed. |
| Cadmium (Cd), is an environmental and industrial pollutant that affects the male reproductive system. Cd induces its effect by affecting tissue antioxidant enzyme systems. Green tea extract (GTE) is an antioxidant and free radicals scavenger and has a chelating property. The purpose of this study was to investigate the protective effect of GTE against testes damage induced by Cd. Four groups of male rats, were utilized as following: Controls, GTE treated, Cd treated and Cd + GTE, treated rats at the same doses. The rats received GTE and or Cd orally in drinking water. After 5 weeks, the animals were sacrificed and testes were removed for microscopic and Biochemical evaluation. The levels of lipid peroxides (LPO) and glutathione (GSH) were detected in the... |
| Tipo: Journal article |
Palavras-chave: Rat Testes; Cadmium toxicity; Green tea extract; Lipid peroxides; Glutathione. |
| Ano: 2009 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022009000300020 |
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| Gworys,Bohdan; Jeka,Slawomir; Brukiewa,Radoslaw; Rymko,Marcin. |
| The aim of this work was to analyze the stomach growth rate, variability of proportion and shape during prenatal period, as well as evaluation of final features differentiation process distinctive for perinatal period. It seems interesting to compare stomach growth analyzed in situ on post-mortem fetuses with results obtained by other authors evaluating this process in sonographic examinations. Research was conducted on 225 post-mortem fetuses 12th to 40 th week of fetal age. There were measurements of stomach total length, lengths of greater and lesser curvature and cardia and pylorus widths performed. We evaluated the thickness of stomach front wall and bottom and its total mass. Statistical analysis was performed using statistical program package... |
| Tipo: Journal article |
Palavras-chave: Stomach; Fetal development. |
| Ano: 2012 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022012000200017 |
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| Babu,B. Prakash. |
| Ansa cervicalis is a loop of nerves found in the anterior wall of the carotid sheath in the carotid triangle of neck innervating infrahyoid muscles. Its superior root has fibres from the first cervical nerve that leaves the hypoglossal nerve and joins the inferior root formed by the branches from the second and third cervical nerves. The two roots join to form ansa cervicalis. The ansa cervicalis nerve formation is relatively complex, as its course and location along the great vessels of the neck vary. In the present case on the left side of an adult male cadaver the inferior root was absent and the contributions from C2 and C3 were joining independently with the superior root of ansa to form ansa cervicalis. However no such variation was found in the ansa... |
| Tipo: Journal article |
Palavras-chave: Ansa cervicalis; Inferior root; Variation. |
| Ano: 2011 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022011000100040 |
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| Registros recuperados: 2.570 | |
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