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Altered Levels of Nodal Excitability by Rate-Dependent Inhibitory Effects of Essential Oil of Citrus aurantium on the Electrophysiological Properties of Isolated Perfused Rabbit AV-Node: Protective Role in the Prevention of Ouabain Toxicity International Journal of Morphology
Khori,Vahid; Nayebpour,Mohsen; Mansourian,Azad Reza; Davarian,Ali; Naseri,Mohsen; Salehi,Aref; Alizadeh,Ali-Mohamad.
Treatment of supraventricular arrhythmia includes a wide range of medical interventions. Herbal remedies are suitable alternatives to synthetic drugs due to their availability, minimal side effects and lower price. Pharmacological studies and traditional medical literature point to the cardiovascular effects of Citrus aurantium L. (Rutaceae) in many instances. In the present study we used isolated perfused AV-node of rabbit as an experimental model to determine the effect of various concentrations of essential oil of C. aurantium (0.1-0.3 v/v) on the nodal conduction time and refractoriness of an isolated rabbit AV-nodal preparations. Selective stimulation protocols were used to independently quantify AV nodal recovery, facilitation and fatigue in 18...
Tipo: Journal article Palavras-chave: Citrus aurantium; Isolated AV-node; Arrhythmia; Herbal drugs.
Ano: 2010 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022010000200019
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Altered Liver Morphology and Enzymes in Streptozotocin Induced Diabetic Rats International Journal of Morphology
Zafar,Muhammad; Naeem-ul-Hassan Naqvi,Syed; Ahmed,Masood; Kaimkhani,Zahid Ali.
This study was undertaken to evaluate the relationship and effects of diabetes on liver morphology, architecture and function. The hepatic effects of diabetes were evaluated in vivo using streptozotocin (STZ)-induced diabetic rats as an experimental model. The degree of hepatic dysfunction was measured by using biochemical parameters like serum transaminases (ALT and AST), alkaline phosphatase (ALP)and pseudocholinesterase (PChE) while the histopathological studies were carried out to support the enzymic Parameters. The aim of the study was to investigate the association between diabetic hepatic complications and liver enzyme alterations. This study was performed in the Department of Anatomy; Institute of Pharmaceutical Sciences and Institute of...
Tipo: Journal article Palavras-chave: Streptozotocin; Aminotransferases; Alkaline phosphatase; Pseudocholinesterase; STZ-diabetes; Hepatic injury.
Ano: 2009 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022009000300015
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Altered Testicular Morphology and Oxidative Stress Induced by Cadmium in Experimental Rats and Protective Effect of Simultaneous Green Tea Extract International Journal of Morphology
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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Altura del Proceso Condilar en Pacientes con Diferentes Clases Esqueletales que Requieren Tratamiento de Ortodoncia International Journal of Morphology
Fuentes,Ramón; Silva,Héctor; Sandoval,Paulo; Cuevas,Felipe; Rodríguez,Manuel.
Los trastornos temporomandibulares (TTM) son prevalentes en la población, siendo su etiología multifactorial. Los factores etiológicos pueden agruparse en estructurales, funcionales y psicosociales. Los estudios demuestran que el 75% de la población presentan signos y 33% síntomas de TTM.Los factores estructurales, como las asimetrías de los componentes de la articulación temporomandibular, juegan un rol importante. La asimetría condilar se ha estudiado en diferentes patrones esqueletales. Se evaluaron 331 radiografías panorámicas y telerradiografías de sujetos de edades entre 8 a 18 años. Se evaluó el ángulo ANB y la altura del proceso condilar mediante el método de Habets et al. (1988). De acuerdo a la medición de la ángulo ANB, las clases esqueletales...
Tipo: Journal article Palavras-chave: Articulación temporomandibular; Asimetrías; Proceso condilar.
Ano: 2006 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022006000400033
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Alveolar Antral Artery International Journal of Morphology
Alves,Nilton.
Tipo: Journal article
Ano: 2017 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022017000300001
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Alveolar Ridge Conservation by Early Bone Formation After Tooth Extraction in Rabbits: A Histomorphological Study International Journal of Morphology
Cantín,Mario; Olate,Sergio; Fuentes,Ramón; Vásquez,Bélgica.
Alveolar ridge volume loss is an irreversible process. To prevent this physiological event, which typically result in significant local anatomical changes in both the horizontal and the vertical dimension, some strategies are indicated to minimize the loss of ridge volume that typically follows tooth extraction. The purpose of this study was to evaluate if three different bone grafts could promote new bone formation in the alveolar socket following tooth extraction for the alveolar ridge conservation. First mandibular molars of male adults rabbits were extracted and the extraction sockets were randomly treated with three different bone grafts, one xenograft and two alloplastic grafts, and a group that received no treatment (blood clot). The extraction...
Tipo: Journal article Palavras-chave: Tooth Socket; Bone grafting; Alveolar bone loss; Alveolar ridges preservation.
Ano: 2015 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022015000100058
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Amebic Liver Abscess in Rat: Morphological Evidence of Innate Immune Modulation by the Sympathetic Nervous System International Journal of Morphology
Muñoz-Ortega,Martín Humberto; Cervantes-García,Daniel; Quintanar-Stephano,Andrés; Campos-Esparza,María del Rosario; García-Lorenzana,Mario; Campos-Rodríguez,R; Rodríguez,M. G; Ventura-Juárez,Javier.
All organs of the immune system are innervated and almost all neurotransmitter receptors are present on immune cells. We studied the effects of sympathetic innervation in the development of amebic liver abscess (ALA) in rats. Our results showed that lack of sympathetic innervation promote a decrease in size of ALA. We found scarce amoebas, increased the number of neutrophils and a few collagen fibers surrounding the abscess, meanwhile in control group, we observed abscesses areas with typical necrosis including trophozoites and neutrophils. Macrophages were differentially distributed surrounding abscess area in control and vehicle groups, but equally located in and outside of the abscesses in sympathectomized rat. No significant differences were observed...
Tipo: Journal article Palavras-chave: Sympathectomy; Rat; E. histolytica; Amebic liver abscess.
Ano: 2015 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022015000100034
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Ameliorative Effect of Propolis Against Hepatorenal Alterations Induced by Methotrexate: Morphohistopathological Study International Journal of Morphology
Almansour,Mansour I; Jarrar,Yazun B; Aloyaidy,Khalid A; Jarrar,Bashir M.
Methotrexate (MTX) is widely used in the treatment of some forms of cancer but having severe side effects. The present work aimed to investigate the protective role of propolis treatment against alterations induced by MTX on the hepatic and renal tissues. Rabbits were exposed to MTX (0.25 mg/kg), with or without propolis (50 mg/kg) while hepatic and renal biopsies were examined for histological and histochemical abnormalities. Methotrexate induced hydropic degeneration, pyknosis, sinusoidal dilatation and bile duct hyperplasia in the liver together with renal tubular degeneration, glomerular shrinkage and hyaline droplet precipitation. While propolis partially ameliorated some of the morphometric and biochemical alterations, none of the hepatic alterations...
Tipo: Journal article Palavras-chave: Histological alterations Kidney; Liver Methotrexate toxicity Propolis.
Ano: 2017 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022017000200059
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Ampliaciones de una Mediateca Digital de Muestras de Laboratorio Histopatológico International Journal of Morphology
Ávila,Rodolfo Esteban; Alemany,Laura Alonso I; Samar,María Elena; Buzzetti,Luisa Beatriz; Juri,Gustavo; Juri,Hugo Oscar.
El objetivo general de acción de este proyecto es ampliar una mediateca digital consistente en imágenes de muestras histopatológicas obtenidas en la 2da. Cátedra de Biología Celular, Histología y Embriología de la Facultad de Ciencias Medicas Universidad Nacional de Córdoba, Argentina. Se proponen tres líneas de trabajo principales: 1- integración de imágenes y documentos científicos (abstract de artículos) mediante el uso de términos ontológicos, 2- articulación del listado de imágenes y documentos científicos con herramientas de acceso a la información multimedia (imágenes y texto), 3- incorporación de una traducción simi-automática ingles-español usando herramientas libres de traducción automática de lengua origen castellano a lengua de origen ingles....
Tipo: Journal article Palavras-chave: Mediateca digital; Laboratorio; Muestras; Histopatología.
Ano: 2010 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022010000300034
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An Anatomical Study of the Arterial Supply to the Soft Palate International Journal of Morphology
Maistry,T; Lazarus,L; Partab,P; Satyapal,K. S.
This study provides a detailed description of the arteries supplying the soft palate via: (i) ascending palatine; (ii) tonsillar; (iii) ascending pharyngeal; and (iv) lesser palatine arteries. Detailed dissections were performed on each side of thirty fetal and twenty adult head and neck specimens (n=100). This investigation documents the arteries terminating at the respective parts (superior, middle and inferior) of the soft palate and demonstrated that the majority of arteries terminated at the superior (83%) and middle (63%) parts, whereas the inferior part (34%) was documented to receive the poorest arterial supply. The present study recognized anastomotic connections in 6% of fetal specimens i.e. (i) between the ascending palatine and lesser palatine...
Tipo: Journal article Palavras-chave: Soft palate; Arterial supply; Territory; Anastomosis.
Ano: 2012 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022012000300014
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An Anatomical Study of Variations of Sacral Hiatus in Sacra of North Indian Origin and Its Clinical Significance International Journal of Morphology
Seema,; Singh,M; Mahajan,A.
Sacrum is formed by the fusion of five sacral vertebrae and forms the lower part of vertebral column. The opening present at the lower end of sacral canal is known as sacral hiatus. Anatomical variations in morphology and morphometry of sacral hiatus are important clinically as well as surgically. 159 dry clean human Sacra were taken from Department of Anatomy, Sri Guru Ram Das Institute of Medical Sciences and Research Vallah (Amritsar). Various shapes of sacral hiatus were observed which included inverted U (42.95%), inverted V (27.51%), irregular (16.10%), dumbbell (11.40%) and bifid (2.01%). The apex of sacral hiatus was commonly found at the level of 4th sacral vertebra in 56.36%. The mean length of sacral hiatus was 22.69 mm. The mean anteroposterior...
Tipo: Journal article Palavras-chave: Sacral Hiatus; Apex; Sacral canal; Caudal epidural block.
Ano: 2013 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022013000100017
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An Anomalous Left External Jugular Vein Draining into Right Subclavian Vein: A Case Report International Journal of Morphology
Rajanigandha,V; Rajalakshmi,R; Ranade,A. V; Pai,M. M; Prabhu,L. V; Ashwin,K; Jiji,P. J..
Knowledge of the varying drainage patterns of superficial veins of head & neck, in particular, jugular veins are not only important for anatomists but also for the surgeons operating at this level and to clinicians in general. The variations are important for interventional radiologists too who perform transjugular procedures, such as port implantations and the transjugular intrahepatic portosystemic shunt or selective venous samplings. Results of recent studies report that the superficial veins, especially the external jugular vein (EJV), is been increasingly utilized for cannulation to conduct diagnostic and therapeutic procedures. We report a very unusual presentation of external jugular vein on left side of an embalmed male cadáver....
Tipo: Journal article Palavras-chave: External jugular vein; Variations; Jugular venous system.
Ano: 2008 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022008000400018
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An Anomalous Pattern of Superficial Branch of Radial Nerve: A Cadaveric Case Report International Journal of Morphology
Nurul Huda,Mohd Nor; San,Aye Aye; Fauziah,Othman.
In the present case study, there is an anomalous pattern of superficial branch of radial nerve (SBRN) that can be recognized as an anatomical variant of the left upper limb of a 60 years old donated embalmed male cadaver in the Department of Human Anatomy, Universiti Putra Malaysia, in which the superficial branch of radial nerve supplies the extensor carpi radialis longus and extensor carpi radialis brevis muscle. The superficial branch of radial nerve gave off branch to supply the proximal fusion part of extensor carpi radialis longus and extensor carpi radialis brevis muscles immediately after bifurcation of the radial nerve into the superficial branch of radial nerve and deep branch of radial nerve. This variation is very important to the surgeon as...
Tipo: Journal article Palavras-chave: Anatomical variant; Superficial branch of radial nerve; Extensor carpi radialis longus; Extensor carpi radialis brevis.
Ano: 2014 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022014000100005
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An Anthropometry Study of the Shoulder Region in a Chinese Population and its Correlation with Shoulder Disease International Journal of Morphology
Yu,Ming-Yang; Zhang,Wei; Zhang,De-Bao; Zhang,Xiao-Dong; Gu,Gui-Shan.
Purpose: There is a paucity of data which reflected the relationship between morphology and incidence of shoulder disorders with respect to the ethnic Chinese population. We used anteroposterior radiographs to measure the Acromion Index (AI) and Acromioglenoid Angle (AA) of Chinese patients. The baseline was defined as the line that connected the superior and inferior osseous margins of the glenoid cavity. In order to calculate the AI, the distance from the baseline to the lateral margin of the acromion was measured and then divided by the distance from the baseline to the lateral aspect of the humeral head. The AA was defined as the angle formed by the intersecting line drawn tangent to the sclerotic line of the acromion undersurface and the baseline...
Tipo: Journal article Palavras-chave: Acromioglenoid angle; Acromion index; Chinese population; Rotator cuff Injuries; Acromial Tilt.
Ano: 2013 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022013000200020
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An Attempt to Determine the Size of Biometric Differences in the Skull of Two Colour Variants of American Mink (Neovison vison) International Journal of Morphology
Baranowski,Piotr; Pezinska-Kijak,Katarzyna; Felska-Blaszczyk,Lidia; Zuk,Krzysztof; Nowak,Piotr; Kosecka,Joanna; Oczeretko,Kamila; Chukwu,Peter; Mazur,Pawel.
This study aimed at answering the question whether production of new colour variants of American mink in mink farms using mutations may entail changes in skull morphology and relationships between the bone elements building it. Analyses were made on the skulls of 56 eight-month-old males and females of two American mink colour variants (standard Brown and mutant Sapphire) from the same farm. Mean values, standard deviations and coefficients of variation were determined for carcass weight, cranial and mandibular weights and 7 dorsal surface, 8 lateral surface and 11 basal surface traits of the skull. The values of 24 cranial and mandibular indices and the values of sexual size dimorphism (SSD), i.e. a coefficient describing differences between sexes, were...
Tipo: Journal article Palavras-chave: Biometry; Neovison vison; Viscerocranium; Neurocranium; Skull.
Ano: 2014 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022014000300024
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An Electron Microscopic Study of the Antifertility Potential of Rosemary (Rosmarinus officinalis L.) in Male Albino Rats International Journal of Morphology
El-Din,Rania A. Salah; El-Shahat,Abd El-Rahman; Elmansy,Rasha Ahmed.
The present work was aimed at studying the antifertility potential of the commonly used herb, rosemary in the male albino rats using electron microscopy as the method of investigation. Ethanolic extract of the rosmary prepared and administered orally in two different doses for a period of three months to the animals. At the end of the experiment animals were sacrificed and testes removed. Sections for the electrone microscopy prepared and changes were observed. The present results showed evident microscopic changes in the testis of the animals received higher dose of the drug. Most of the seminiferous tubules were compressed, having irregular basement membrane and devoid of any spermatogenic cells. The present work revealed a clear morphological evidence...
Tipo: Journal article Palavras-chave: Antifertility potential; Rosemary; Rosmarinus officinalis L; Electron microscopy; Male albino rats.
Ano: 2012 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022012000200051
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An Interactive Tool for the Human Anatomy Laboratory International Journal of Morphology
Maldonado-Zimbrón,Victor E.; Elizondo-Omaña,Rodrigo E.; Cepeda,Beatriz A. De la Garza; Vilchez-Cavazoz,Félix; Castro,Oscar de la Garza; Guzmán-López,Santos.
A multimedia program has been developed at the Departament of Human Anatomy, Medicine School of Universidad Autónoma de Nuevo León. It offers an alternative to support the traditional laboratory practice and resolve, during the dissection, the most common problems that we have already identify in our students. Some features of this program are: photography's, diagrams, information about the structures, clinical correlation and tests. All this tools were integrated in a software using Macromedia Flash. The final result is a multimedia program that will be used by students during their laboratory practice. At present, we are making a study to determine the effect that is produced in the development of the students in the anatomy lab
Tipo: Journal article Palavras-chave: Laboratory practice; Multimedia program; Dissection; Teaching anatomy.
Ano: 2006 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022006000400014
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An Osteometric Evaluation of the Foramen Spinosum and Venosum International Journal of Morphology
Lazarus,L; Naidoo,N; Satyapal,K. S.
The foramen spinosum (FS) and foramen venosum (of Vesalius) (FV) are alisphenoid apertures situated within the hub of the middle cranial fossa in close proximity to foramen ovale (FO). The FS and FV provide a passage to important neurovascular structures. An accurate knowledge of the morphometric details of the FS and FV including their shape, incidence, relation to other foramina and/or presence of any anomalies may represent a reliable anatomical landmark during surgical explorative maneuvers. Therefore, the aim of this study was to investigate the morphologic and morphometric features of the FS and FV. The study was conducted on 100 dry human skulls (n= 200) obtained from the osteological bank at the University of KwaZulu-Natal, to produce a database...
Tipo: Journal article Palavras-chave: Foramen spinosum; Foramen venosum; Foramen of Vesalius; Middle cranial fossa; Greater wing of sphenoid bone.
Ano: 2015 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022015000200008
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An Osteometric Evaluation of the Jugular Foramen International Journal of Morphology
Ishwarkumar,S; Naidoo,N; Lazarus,L; Pillay,P; Satyapal,K. S.
The jugular foramina (JF) are bilateral openings situated between the lateral part of the occipital bone and the petrous part of the temporal bones in the human skull. It is a bony canal transmitting neurovascular structures from the posterior cranial fossa through the base of the skull to the carotid space. Since the JF depicts variations in shape, size, height and volume between different racial and gender groups, along with distinctive differences in laterality from its intracranial to extracranial openings, knowledge of the JF may be necessary to understand intracranial pathologies. Therefore, the purpose of this study was to evaluate the morphometric measurements of the jugular foramen. Various morphometric parameters of the JF and its relation to...
Tipo: Journal article Palavras-chave: Jugular foramen; Morphometry; Surrounding structures.
Ano: 2015 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022015000100039
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An Osteometric Evaluation of the Mandibular Condyle in a Black KwaZulu-Natal Population International Journal of Morphology
Ishwarkumar,S; Pillay,P; DeGama,B. Z; Satyapal,K. S.
The mandibular condyle is the rounded protuberance that articulates with the mandibular fossa to form the temporomandibular joint (TMJ). The shape of the mandibular condyle may be classified according to five basic shapes viz. flattened, convex, angled, rounded and concave. Previous research indicated that variation in the shape and size of the mandibular condyle, exists and that population-specific differences may also occur. This study aimed to document the shapes and size of the mandibular condyle and determine their relationship with regard to sex, age and race (if any). The morphometric and morphological parameters of the mandibular condyle were measured and assessed in 54 dry mandible specimens (n= 108). The Wedel et al. (1978) classification scheme...
Tipo: Journal article Palavras-chave: Mandibular condyle; Mandibles; Osteology; Morphometry; Morphology.
Ano: 2016 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022016000300005
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