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| Registros recuperados: 2.570 | |
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| 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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| 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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| 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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| 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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| 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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| 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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| 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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| 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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| 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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| 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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| 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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| 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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| 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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| 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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| 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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| 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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| Registros recuperados: 2.570 | |
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