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A Quantitative Assessment of the Morphological Characteristics of BeWo Cells as an in vitro Model of Human Trophoblast Cells International Journal of Morphology
Abaidoo,C.S; Warren,M. A; Andrews,P. W; Boateng,K. A.
In order to study the detailed morphology of trophoblast cells during human implantation, BeWo cells were cultured as spheroids in suspension culture. These cultures were then processed for light and electron microscopical examination. The present study showed that the BeWo spheroids consist of two cell types which are cytotrophoblast-like and syncytiotrophoblast-like. The cells with larger nuclear diameter made up only about 1% of the cell population and appear to be those of syncytiotrophoblast. Therefore the predominant cell type of the BeWo spheroids appeared to be relatively undifferentiated and cytotrophoblast-like. About 10% of the BeWo cells in the present study were mitotic, indicating a highly proliferative population. Total cell number increased...
Tipo: Journal article Palavras-chave: BeWo; Trophoblast; Morphometry; Spheroids.
Ano: 2010 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022010000400011
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Assessment of Mesial Root Morphology and Frequency of MB2 Canals in Maxillary Molars using Cone Beam Computed Tomography International Journal of Morphology
Abarca,J; Gómez,B; Zaror,C; Monardes,H; Bustos,L; Cantin,M.
The aim of this study was to assess the morphology of the mesial root canal system of maxillary molars and the frequency of MB2 canals using cone-beam computed tomography (CBCT). A total of 1374 teeth, first maxillary (1MS, n= 802) and second maxillary molars (2SM, n= 572) of 508 Chilean patients between 8 to 77 years were evaluated through CBCT. The mesiobuccal root was evaluated in all three thirds. Root canal morphology was classified according to Vertucci's method. Data were analyzed by Pearson's Chi-square and Cuzick trend tests. MB2 canal frequency in 1MS was 73.44% and in 2MS 42.48%. The most frequent morphology in 1MS and 2MS were Vertucci type II and I, respectively. No statistically significant association was...
Tipo: Journal article Palavras-chave: CBCT; Secondary mesiobuccal canal; MB2; Maxillary molars; Root canal system.
Ano: 2015 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022015000400023
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Morphology of the Physiological Apical Foramen in Maxillary and Mandibular First Molars International Journal of Morphology
Abarca,J; Zaror,C; Monardes,H; Hermosilla,V; Muñoz,C; Cantin,M.
Information regarding the anatomy of the physiological apical foramen is limited. Knowing its diameter and shapes contributes to clinical work, specifically to the cleaning and shaping of the apical third. The aim of this ex vivo study was to determine the minimum and maximum diameters and shape of the physiological apical foramen in the roots of maxillary and mandibular first molars. A descriptive study was conducted on 89 recently extracted first molars. Roots 3-5 mm from the apex were sectioned and prepared for analysis at 40x magnification. The minimum and maximum diameters of each physiological foramen were measured using the program Motic Images plus 2.0 ML. The shape of the foramina, classified as round, oval or irregular, was determined by the...
Tipo: Journal article Palavras-chave: Physiological Foramen; Apical constriction; Root apex; Apical diameter; Foraminal morphology; Permanent first molar.
Ano: 2014 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022014000200048
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A Comparative Histological Study of the Tongue of Rat (Rattus Norvegicus), Bat (Eidolon Helvum) and Pangolin (Manis Tricuspis) International Journal of Morphology
Abayomi,Taiwo A; Ofusori,David A; Ayoka,Oladele A; Odukoya,Samson A; Omotoso,Emmanuel O; Amegor,Frank O; Ajayi,Sunday A; Ojo,Gideon B; Oluwayinka,Oladele P.
This study assessed the micro anatomical differences in the tongue of rat, bat and pangolin with a view to establishing the functional anatomical differences of these mammalian tongues on their dietary pattern. Ten rats, ten bats and ten pangolins were used for this study. The animals were sacrificed and the tongue excised and processed for light microscopical study adopting the following stains: Haematoxylin Eosin, Verhoeff Gieson and Masson trichrome. The results showed non papillation of the keratinized stratified epithelium of pangolin tongue unlike the papillation seen in the tongue of the rat and bat. While the filiform papillation seen in the rat was bristle like, the filiform papillae in the bat were crown-like. There was also an unusual dense...
Tipo: Journal article Palavras-chave: Rat; Bat; Pangolin; Tongue; Micro-anatomy.
Ano: 2009 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022009000400026
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Reversible Effect of High Altitude on Rat Testis Morphology and Spermatogenesis: Histological and Ultrastructural Study International Journal of Morphology
Abdalla,Asim M; Tingari,M. D; Ali,K. Z; Rezigalla,A. A; Al-shraim,Mubarak; Eid,Refaat, A.
The study was carried out at two different altitudes in the southern region of Saudi Arabia: Abha, 2,800 meters above sea level, the high altitude (HA) area and Jazan, 40 meters above sea level the low altitude (LA) area. Following exposure to high altitude, testes of rats revealed various types of atrophy and degeneration in the seminiferous tubules and in the interstitial tissue. There was detachment of the basal laminae of the tubules and a profound decrease in cellularity. When rats were brought back to their habitat (LA) and later examined, many tubules showed normal population of cells including spermatids and spermatozoa. Well-arranged epithelium was seen in most of the seminiferous tubules of these animals, normal interstitial space and no...
Tipo: Journal article Palavras-chave: High altitude; Low altitude; Hypoxia; Semen; Reproductive hormones.
Ano: 2016 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022016000100023
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The Impact of Proximol (Cymbopogon proximus) Intakeon Pregnant Albino Ratsand their Fetuses During Gestation Period International Journal of Morphology
Abdelrahman,Heba A; Omar,Amel R; Salah EL-Din,Eman Y.
Halphabarol, the active principle of Proximol, is the most potent of the four antispasmodics present in the national desert weed Cymbopogon proximus or ''Halfa Bar''. Halphabarol is of great value for the management of renal colic and in the expulsion of ureteric calculi as it causes dilation of the ureter below the site of calculus while active propulsion is maintained. Evaluation the congenital malformation of proximol in pregnant albino rats during gestation period. The virgin female rats were mated with male rats and the pregnant rats were orally administered a human equivalent dose (0.05 mg/kg) of Proximol from 5th-20th gestation day. At day 20 of pregnancy, all rats were anesthetized to obtained maternal and fetal data. The treatment group displayed...
Tipo: Journal article Palavras-chave: Cymbopogon proximus; Halfa Bar; Malformation.
Ano: 2017 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022017000200019
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Desarrollo Embrionario del Pargo Colorado Lutjanus colorado (Jordan & Gilbert, 1882) International Journal of Morphology
Abdo-de la Parra,María Isabel; García-Aguilar,Noemí; Rodríguez-Ibarra,L. Estela; Velasco-Blanco,Gabriela; Ibarra-Castro,Leonardo.
El pargo colorado (Lutjanus colorado) es una especie con un alto valor comercial en el mercado mexicano, con potencial para su cultivo. Hasta la fecha no existen estudios sobre su reproducción, cultivo larvario y engorda en cautiverio. El presente trabajo es el primer reporte sobre la descripción a detalle del desarrollo embrionario de la especie bajo condiciones de cultivo. Los huevos fertilizados viables del pargo colorado son pelágicos, esféricos, transparentes y con una sola gota de aceite. Midieron 0,77±0,09 mm de diámetro y la gota de aceite 0,14±0,01 mm. La primera división ocurrió a las 0,05 horas post fertilización (HPF). La eclosión se llevó a cabo a las 17,22 HPF bajo las condiciones del presente estudio. Las...
Tipo: Journal article Palavras-chave: Blástula; Gástrula; Organogénesis; Eclosión; Lutjanus colorado.
Ano: 2014 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022014000300025
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Mind Map Teaching of Gross Anatomy is Sex Dependent International Journal of Morphology
Abdolahi,Masomeh; Javadnia,Fatemeh; Bayat,Parvin-Dokht; Ghorbani,Rostam; Ghanbari,Ali; Ghodoosi,Bahareh.
The aim of this study was to evaluate the effectiveness of using Mind Maps in teaching anatomy and compare it with traditional based slide. This cross-sectional research was carried out in 2009 on 79 second year medical undergraduate students at Ahvaz Jondishapour University of Medical sciences. Four class lectures on the topics of head and neck osteology were taught. The lectures were slide based designed that were chosen from the chapters in the anatomy textbooks and presented by means of a video projection power point system. The students divided randomly into two groups; one group educated by traditional slides while the other by mind map based designed ones. At the end of the term, a multiple-choice involved forty test was undertaken from two groups....
Tipo: Journal article Palavras-chave: Anatomy; Mind map; PowerPoint slides; Teaching; Visual note takings; Sex.
Ano: 2011 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022011000100006
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Análisis Antropométrico de la Simetría Corporal en Jugadores de Bádminton International Journal of Morphology
Abián,P; Abián-Vicén,J; Sampedro,J.
El objetivo del estudio fue comprobar si existen diferencias entre el lado dominante y no dominante de las medidas antropométricas en los mejores jugadores y jugadoras españoles de bádminton, así como verificar si el lado del cuerpo donde se realiza la medición puede influir en el cálculo de la composición corporal y del somatotipo. Participaron voluntariamente en el estudio 46 jugadores de bádminton de élite, 31 eran hombres (edad=21,7±4,3 años) y 15 mujeres (edad=19,1±4,4 años). Se tomaron las medidas de 6 pliegues cutáneos, 3 diámetros, 3 longitudes y 5 perímetros del lado dominante y no dominante de los sujetos. Se calculó la composición corporal y el somatotipo con los valores registrados en cada uno de los lados. No se encontraron diferencias en los...
Tipo: Journal article Palavras-chave: Bádminton; Antropometría; Composición corporal; Somatotipo; Masa muscular.
Ano: 2012 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022012000300030
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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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Pineal Gland Plays a Role in Gonadal Development after Eyelids Separation in Puppies International Journal of Morphology
Abou-Easa,Khalil; El-Magd,Mohammed Abu; Tousson,Ehab; Hassanin,Amin; Shukry,Mustafa; Salama,Mohammed.
Several functional and morphological studies have been conducted on the pineal gland in many mammalian species; however, no published reports are available on the role of pineal gland on the gonadal development before and after eyelids separation in puppies. Therefore, this study aimed to trace the postnatal histo-morphological changes in the pineal gland and gonads of puppies before (2, 10 and 11 days old) and after (25, 35 and 40 days old) eyelids separation in an attempt to investigate the possible role of pineal gland on the gonadal development. In general, the differentiation of pineal cells, interstitial endocrine cells of testes and stromal ovarian cells coincides with the start of eyelids separation in puppies. Histological examination of stained...
Tipo: Journal article Palavras-chave: Pineal; Testis; Ovary; Puppy; Eyelids separation.
Ano: 2015 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022015000100001
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Gill Morphology in the Red Swamp Freshwater Crayfish Procambarus clarkii (Crustacea: Decapoda: Cambarids) (Girard 1852) from the River Nile and its Branches in Egypt International Journal of Morphology
Abumandour,Mohamed M.
The aim of the present study was focused on and describes the gross morphological and scanning electron microscopical features of the gill of the red swamp freshwater crayfish. Our results noted that: all gills have the same general structure and appearance. The gill consists of axis with numerous finger-like filaments, having three morphological types; round, pointed and somewhat hooked shaped. There is a variation in the direction of filaments according to their position, in middle part were nearly perpendicular to gill axis while in the apex were nearly parallel to axis. There were characteristic system of gill spines on central axis, basal plate, setobranch and on the bilobed epipodal plate. There are four shape of spinated-like parts of setobranch...
Tipo: Journal article Palavras-chave: Crayfish; Filaments; Spines; Setobranch setae.
Ano: 2016 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022016000100025
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Morphological Comparison of the Filiform Papillae of New Zealand White Rabbits (Oryctolagus cuniculus) as Domestic Mammals and Egyptian Fruit Bat (Rousettus aegyptiacus) as Wild Mammals Using Scanning Electron Microscopic Specimens International Journal of Morphology
Abumandour,Mohamed M. A.
This paper presents a comparison of the morphological structure of the filiform papillae in New Zealand white rabbits as domestic mammals and Egyptian fruit bats as wild mammals. This study was carried out on the tongues of adult healthy New Zealand white rabbits and Egyptian fruit bats of both sexes. There were four types of lingual papillae in both animals. In the Egyptian fruit bats, there were six subtypes of the filiform papillae; three on the anterior part (small, conical and giant), two on the middle part (cornflower and leaf-like papillae) while the posterior part contain rosette shape filiform papillae, in addition to transitional papillae and conical papillae. In New Zealand white rabbits, there were four subtypes of filiform papillae; spoonful...
Tipo: Journal article Palavras-chave: Filiform papillae; Egyptian fruit bat; New Zealand white rabbits; Scanning electron microscope (SEM).
Ano: 2014 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022014000400045
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Gill Morphology in Two Bottom Feeder Mediterranean Sea Fishes: Grey Gurnard Fish (Eutrigla gurnardus, Linnaeus, 1758) and Striped Red Mullet Fish (Mullus barbatus surmuletus, Linnaeus, 1758) by Scanning Electron Microscopy International Journal of Morphology
Abumandour,Mohamed M. A; El-Bakary,Neveen E. R.
The purpose of the current investigation was to describe the gill morphology of two bottom feeders Mediterranean Sea fishes: Striped red mullet fish (M. surmuletus) and grey gurnard fish (E. gurnardus) that showed the same feeding habits. The gill system of the grey gurnard consisted of four pairs of gill arches while consisted of three pairs of gill arches in the striped red mullet. Our study focused on the scanning electron microscopical (SEM) features of the gills, where some differences in the gill arches and gill rakers surface in both species were observed. Our results marked that there was an interbranchial septum carrying a four transverse elevated crest in grey gurnard while in striped red mullet carrying a median longitudinal elevated crest....
Tipo: Journal article Palavras-chave: Grey gurnard fish; Striped red mullet fish; Scanning electron microscopy; Gill raker; Gill arch; Gill filament.
Ano: 2017 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022017000100014
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Morphological Investigations of the Cervicothoracic Sympathetic System in the Horse (Equus ferrus caballus) in Egypt International Journal of Morphology
Abumandour,Mohamed M. A; El-defrawy,Fatma.
The current study was performed on twelve healthy adult horses (E. ferrus caballus) collected from Egypt were dissected to provide anatomical descriptions of bilaterally cervicothoracic sympathetic system macroscopically. On the left side, cervicothoracic sympathetic system is represented only by the caudal cervical ganglion, which presents on lateral surface of esophagus, cranial to the level of first rib. On right side, cervicothoracic sympathetic system is represented by the caudal and middle cervical ganglion. Caudal cervical ganglion was consisted of the fusion of eighth cervical and first three thoracic nerve ganglia. Caudal directed continuation branch of left ansa subclavia gave off a pericardial branch and then gave branch for ligamentum...
Tipo: Journal article Palavras-chave: Horse; Caudal cervical ganglion; Sympathetic nerve; Subclavian; Sympathetic-parasympathetic communicating branches.
Ano: 2016 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022016000300018
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Morphological Studies on the Gills of Puffer Fish (Lagocephalus sceleratus, Gmelin, 1789) International Journal of Morphology
Abumandour,Mohamed M. A; Gewaily,Mahmoud S.
In the present study, we focused on the morphology of L. sceleratus gills using gross anatomy, scanning electron microscopy as well as light microscopy. Results of this study revealed that the gill openings appeared as simple slits anterior to the pectoral fin without distinct opercular cover. The gill system consisted of three pairs of gill arches carrying two rows of gill rakers on its concave border and gill filaments on its convex border. SEM showed that all surfaces of the gill arch were characterized by the presence of the longitudinal ridges with many taste buds in addition to many spines around the rakers. Histologically, the gill arch was composed of curved bar of hyaline cartilage with slightly elevated area corresponding to the sites of gill...
Tipo: Journal article Palavras-chave: Lagocephalus sceleratus; Gills; Anatomy; SEM; Histology.
Ano: 2016 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022016000300001
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Morphological and Scanning Electron Microscopy Studies of the Stomach of the Egyptian Fruit Bat (Rousettus aegyptiacus) International Journal of Morphology
Abumandour,Mohamed M. A; Pérez,William.
This study was performed to investigate the histomorphological characters of the Egyptian fruit bat stomach using the light and scanning electron microscope. The stomachs of fourteen adult normal healthy Egyptian fruit bats of both sexes were used. Stomach was tubular with an elongated fundic part and a long narrow pyloric part. Internally, the superficial epithelium was disposed in filiform form, the longitudinal rugaes extended throughout the length of the stomach, their numbers were high but they were thin and branched in the fundic region, while in the cardiac and pyloric region reached to 3 or 4 thick longitudinal and not branched rugaes. Under the scanning electron microscopy, we found differences in the appearance of middle part with the...
Tipo: Journal article Palavras-chave: Anatomy; Chiroptera; Digestive system; SEM.
Ano: 2017 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022017000100040
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The Morphometrical Analysis of the External Carotid Artery and its Branches with Multidetector Computerized Tomography Angiography Technique International Journal of Morphology
Acar,Musa; Salbacak,Ahmet; Sakarya,Mehmet Emin; Zararsiz,Ismail; Ulusoy,Mahinur.
The external carotid artery (ECA) is the main artery of the head and the neck region. Carotid bifurcation (CB), which is one of the place where the atherosclerotic plaques are most commonly seen. The surgical procedure of these plaques which causes cerebral vascular accident (CVA) is carotid endarterectomy. In this surgical procedure, the knowledge of the anatomical courses and variations of the carotid artery increased the surgery performance. In our study, we aimed to introduce the course, the location and the variation of the ECA's and their branches. This study is carried out on multidetector computerized tomography angiography of the ECA's of 50 men and 50 women, totally 200 ECA's (100 right, 100 left). The measurement of the inner diameter of the...
Tipo: Journal article Palavras-chave: External carotid artery; Multidetector computerized tomography; Variation; Anatomy.
Ano: 2013 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022013000400042
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Effects of Potentilla fulgens on Tuba Uterina in Ovariectomized Rats International Journal of Morphology
Acar,Zuat; Deger,U; Görkem,Ü; Togrul,Cihan; Deveci,E; Kaya,S; Ekinci,A.
A total of 32 Wistar rats were divided into four equal groups: (I) sham, (II) ischemia, (III) reperfusion and (IV) Potentilla fulgens. In groups I and II, ovary torsion was not performed and no drug was administered. In group III, 1 h of ischemia and 2 h of reperfusion were performed and no drug was given. Group IV received 400 mg/kg/day Potentilla fulgens intraperitoneally 5 days before Ischemia-reperfusion. All the parameters were observed to be significantly decreased (P<0.05) in all the experimental groups compared to the control group. In the sections of the ischemia-reperfusion group, degeneration of epithelium, dilation of blood vessels were observed. Potentilla fulgens administration reduced the morphological changes by induced I/R; in...
Tipo: Journal article Palavras-chave: Potentilla fulgens; Ischemia-reperfusion; Tuba uterina; Rat.
Ano: 2016 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022016000200008
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ANATOMICAL ASPECTS OF THE PLACENTA OF THE SLOTH, Bradypus variegatus, SCHINZ, 1825 International Journal of Morphology
Accioly Lins Amorim,Marleyne José Afonso; Amorim Júnior,Adelmar Afonso de; Messias,Júlio Brando; Silva Júnior,Valdemiro Amaro de; Melo Berinson,Karina de.
Sloth plows euterians mammals, belonging to the order Edentata, sub-order Xenarthra, infra-order Tardigrada, family Bradipodidae, which comprehend three specimen, Bradypus tridadctylus, Bradypus variegates and Bradypus torquatus. They plows few work found in the literature related to the anatomy of the placenta of this specimen. The material used in this research was consisted of 3 placentas of Bradypus variegatus of adult females (Briton, 1941) original of the Forests of the City of Recife and Zone of the Forest of the State of Pernambuco with average weight 4,2 Kg. Placentas were fixed in buffered glutaraldehyed 4%, pH 7,4, 0,1M and processed goes optical microscopy. Macroscopically was observed that the placenta of the sloth is composed of discoidal...
Tipo: Journal article Palavras-chave: Placenta; Sloth; Anatomy; Bradypus variegatus.
Ano: 2004 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022004000100002
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