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Topography of the Middle Genicular Artery is Associated with the Superior and Inferior Genicular Arteries International Journal of Morphology
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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Torque de Retiro de Implantes de Titanio Instalados en Tibia de Perros con Defecto Óseo International Journal of Morphology
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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Torque Teno Virus (TTV) is Prevalent in Brazilian Non-human Primates and Chickens (Gallus gallus domesticus) International Journal of Morphology
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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Toxic Effects of Methanolic Extract of Aspilia africana Leaf on the Estrous Cycle and Uterine Tissues of Wistar Rats International Journal of Morphology
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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Toxicity of Sucralose in Humans: A Review International Journal of Morphology
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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Toxicological studies of Momordica charantia Linn Seed extracts in Male Mice International Journal of Morphology
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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Toxoplasma gondii Induces Death of Gastric Myenteric Neurons in Rats International Journal of Morphology
Alves,Marcelo Sardeto; Silva,Aristeu Vieira da; Bianchi,Larissa Renata de Oliveira; Araújo,Eduardo José de Almeida; Sant'Ana,Débora de Mello Gonçales.
The aim of the study was quantifying and morphologically analyzing the myenteric neurons of the small and large gastric curvatures of the glandular stomach of rats infected the tachyzoites of the Toxoplasma gondii for 30 days. Ten male rats were assigned into two groups: Control Group (CG) and Experimental Group (EG). The animals from the CG received saline solution orally whereas the EG animals received 104 tachyzoites of the T. gondii genotype III strain (BTU II). After 30 days, euthanasia was conducted for the removal of the stomach, which was dissected under the stereomicroscope for removal of the tunica mucosa and the tela submucosa. Whole mounts were stained with Giemsa. Quantification of the myenteric neurons was conducted by using a 40X-objective...
Tipo: Journal article Palavras-chave: Stomach; Toxoplasmosis; Enteric nervous system; Myenteric plexus.
Ano: 2011 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022011000100048
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Toxoplasmosis Sistémica en un Canguro Rojo (Macropus rufus) Cautivo International Journal of Morphology
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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Tracheal Compression by Aberrant Brachiocephalic Trunk Accompanying Variant Origin of the Vertebral Artery International Journal of Morphology
Yang,Kiwook; Park,Jae-Hee; Moon,Yong-Suk; Kim,Hong-Tae; Lee,Jae-Ho.
The aorta is the main arterial trunk in the human body, however, its variation was extremely variable. During an educational dissection, aberrant branching pattern of aortic arch was found in a Korean cadaver. The brachiocephalic trunk (innominate artery) originated from the aortic arch at the left side of the trachea. It crossed the trachea and divided into the right common carotid and subclavian arteries. The left vertebral artery originated from the aortic arch between the origins of the left common carotid artery and the left subclavian artery, then the left vertebral artery coursed upward to the transverse foramen of the C7. The author describes this previously novel case report with aberrant brachiocephalic trunk and left vertebral arteries and...
Tipo: Journal article Palavras-chave: Aberrant brachiocephalic trunk; Aortic arch; Tracheal compression; Variation; Vertebral artery.
Ano: 2017 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022017000200014
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Tracheal Length in Adult Human: The Results of 100 Autopsies International Journal of Morphology
Cinar,Ugur; Halezeroglu,Semih; Okur,Erdal; Inanici,Mehmet Akif; Kayaoglu,Semra.
The purpose of this study was to investigate the average tracheal length and number of the tracheal cartilages in Turkish people, with emphasis on the relationships to body height and sex. A hundred fresh human cadaver tracheas were harvested from 75 males and 25 females. Age, sex and body height of cadavers were recorded. All the neck and intrathoracic structures were removed. The tracheal length was measured between the subcricoid level to the carina in resting and maximally stretched positions. Average tracheal length and number of the tracheal cartilages were compared in different body height groups in both sexes. We found that average body height was 160±6.4 cm and average tracheal length in resting position was 8.5±1 cm (range 6.5­11 cm) in females...
Tipo: Journal article Palavras-chave: Trachea; Tracheal length; Body height; Anatomy; Cadaver.
Ano: 2016 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022016000100033
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TRANSCRIPTOS DE FUSIÓN DEL GEN BCR/ABL EN PACIENTES CON LEUCEMIA MIELOIDE CRÓNICA International Journal of Morphology
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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Transfection of Gametes: A Method to Generate Transgenic Animals International Journal of Morphology
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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Transmigrated Canines Associated to Odontomas International Journal of Morphology
Salamanca,Carlos; Ottone,Nicolás Ernesto; Arias Rubilar,César; Garay,Ivonne; Fuentes,Ramon.
We present the case of a 13-year-old patient with bilateral transmigration of mandibular canine associated with multiple composite odontoma. Impacted canines are very uncommon, with a 0.1 % to 3.6 % prevalence of appearance. The presence in the mandible is less frequent. The odontoma development is often associated with the impacted canines. The etiology is unknown but is associated with traumatic, infectious, hereditary or genetic factors. This pathology is asymptomatic and associated with eruption disorders in temporal and permanent dentition.
Tipo: Journal article Palavras-chave: Transmigrated canines; Odontomas; Panoramic radiography; Cone beam ct.
Ano: 2017 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022017000200013
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Transmission Electron Microscopy of the Gastrointestinal Tract of Nile Perch Lates niloticus International Journal of Morphology
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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Transmission Electron Microscopy Studies of the Vestibulocochlear Nerve in Chronic Diabetic Rats International Journal of Morphology
Vasconcelos,Carlos Augusto Carvalho de; Fazan,Valéria Paula Sassoli; Moore,Kenneth Charles; Nessler,Randy Alan; Valença,Marcelo Moraes.
It is widely described in the literature that diabetic patients present hearing impairment. Despite the histological alterations of the internal ear structures in these patients as well as in experimental models of diabetes, to the best of our knowledge, an histological evaluation of the vestibulocochlear nerve have not been performed. In the present study, ultrastructural alterations are described and compared between a spinal nerves and a cranial nerve in rats with chronic induced diabetes. Male Wistar rats (n = 12), fed with standard diet from the animal care facility at 42 days of age were used. Induced diabetic animals (n=6) were fasted for 12 hours prior to being injected intraperitoneally with streptozotocin (STZ - 60mg/kg) in a single dose. Control...
Tipo: Journal article Palavras-chave: Experimental diabetes; Vestibulocochlear nerve; Ultrastructure; Myelinated fibers; Axonal atrophy.
Ano: 2011 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022011000100045
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Transmission Electron Microscopy Study of the Neonatal Rat Tongue Mucosa Treated with Special Attention to the Bacteriae on the Epithelial Cell Membrane International Journal of Morphology
Picoli,Lara Cristina; Lopes,Ruberval A; Semprini,Marisa; Sala,Miguel Angel; Ogawa,Koichi; Watanabe,Ii-sei.
The epithelial cell surfaces of neonatal Wistar rat tongue mucosa were examined by transmission electron microscopic method. The tissues were fixed by modified Karnovksy solution and embedded in Spurr resin. Thin sections of 90 nm thickness were cut and examined in the Jeol 1010 transmission electron microscopy. It was revealed that the queratinized squamous epithelial cells of the tongue mucosa exposed to cadmium presented groupings of numerous bacteriae which are attached to the flat cell membrane surfaces. The coccus and bacillus are attached to the cell membrane in organized rows or at random, as clearly seen in the TEM images. At high magnification, the transmission electron microscopic images showed that bacteriae are attached by a fibrillar...
Tipo: Journal article Palavras-chave: Epithelial cell; Tongue mucosa; Bacteria; Cadmium; Transmission electron microscopy.
Ano: 2006 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022006000300006
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Transversus Menti Muscle in a Thai Cadaver International Journal of Morphology
Sripanidkulchai,Kittisak; Chaisiwamongkol,Kowit; Iamsaard,Sitthichai.
In submental and around the mouth areas, the superfacial muscles are considered in surgery of some deformities of mouth angle. Herein, we report a rare case of the Transversus menti muscle (TM) in a Thai 74 year-old male cadaver. This TM originated from both sides of the oblique line of depressor anguli oris and formed as transverse fibers in submental area. Their fiber ran under the chin and was superficial to platysma muscle. The TM was innervated and supplied by mandibular branches of facial nerve and small branches of the submental artery. This report attempted to discuss the possible function and clinical significance of the TM.
Tipo: Journal article Palavras-chave: Transversus menti muscle (TM); Submental area; Depressor anguli oris muscle; Platysma muscle.
Ano: 2013 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022013000400040
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Tratamiento con Ultrasonido Continuo de Alta Intensidad en Nervios Isquiáticos de Rata (Sprague Dawley) Lesionados por Compresión International Journal of Morphology
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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Trends in the Pattern of Facial Fractures in Different Countries of the World International Journal of Morphology
Shayyab,Mohammad; Alsoleihat,Firas; Ryalat,Sukaina; Khraisat,Ameen.
The aim of the present study was to examine the changes in the pattern of maxillofacial fractures between developed and developing countries over two time periods; (1987-1999) and (2000-2007). A comprehensive search of the literature using PubMed was conducted for publications on maxillofacial injuries published during the last 20 years. Only 45 articles met the inclusion criteria and the full-texts of these articles were thoroughly examined. For each of the included studies, different parameters were recorded. Calculated "weighed" percentages of each parameter across the total number of all patients were performed. The mandible was the most frequently fractured facial bone (57%). In the total period, the mean age of patients with facial fractures was 24.4...
Tipo: Journal article Palavras-chave: Epidemiology; Maxillofacial fracture; Mandibular fracture; Road traffic accident.
Ano: 2012 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022012000200065
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Tribulus terrestris Hydroalcoholic Extract Administration Effects on Reproductive Parameters and Serum Level of Glucose in Diabetic Male Rats International Journal of Morphology
Ghanbari,Ali; Moradi,Mojtaba; Raoofi,Amir; Falahi,Mahsa; Seydi,Sepideh.
Usage of medicinal plants for the treatment of diseases is a remarkable strategy considered in both clinical and experimental studies. This study was conducted to evaluate the effect of Tribulus terrestris hydroalcoholic extract administration on the serum level of glucose and reproductive parameters in diabetic male rats. In this experimental study, 30 adult male Wistar rats (200­250 g) were divided into 5 groups (n= 6). Diabetes was induced by a single intraperitoneal injection of 50 mg/kg streptozotocin. Experimental groups received daily Intraperitoneal injection of the extract (100, 250 and 500 mg/kg) since one week after inducing diabetes for two weeks. At the end of the experiment, the serum levels of testosterone and glucose were examined by ELISA...
Tipo: Journal article Palavras-chave: Diabetes; Glucose; Rat; Streptozotocin; Testosterone; Tribulus terrestris.
Ano: 2016 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022016000200058
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