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3D Print of the Maxillary Sinus for Morphological Study International Journal of Morphology
Araneda,Nadia; Parra,Marcelo; Valdivia Osorio,José; Olate,Sergio.
The maxillary sinus (MS) is described as a pyramid-shaped cavity of the maxilla. Knowledge of its morphology makes it possible to define normality and abnormality so that its three-dimensional analysis can be a valuable preoperative tool during surgery in this anatomical area. The aim of this study is to present a strategy of morphological analysis of the MS using 3D printing acquired through computed cone beam tomography (CBCT) images. A cross-sectional descriptive study was conducted, including 15 subjects (8 women and 7 men). The 3D virtual reconstruction and modeling was done on the MSs bilaterally, and 30 physical models were produced on a 3D printer. The results revealed that the MSs obtained exhibited various morphologies. An individual analysis of...
Tipo: Journal article Palavras-chave: Maxillary sinus; 3D printing; Biomodel.
Ano: 2017 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022017000300046
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3-D Structural Changes in Subchondral Bone and the Effect of Bisphosphonate Intervention in Early Osteoarthritis International Journal of Morphology
Chen,Hainan; Dong,Qirong; Jiang,Wei.
This study aims to observe the 3-D structural changes in subchondral bone and the effects of bisphosphonate intervention in the early unsteady stage of the knee joint. Sixty healthy male New Zealand white rabbits were divided into the model group (n= 24), the bisphosphonate (Bis) group (n= 24), and the control group (n= 12). The rabbits' right knees were used to evaluate the structural changes. The Bis group received subcutaneous injections of bisphosphonate, while the model and control groups received subcutaneous injections of isotonic saline solution. After surgical preparation, the knee joint was dissected for Micro-CT examination, and the Micro-CT results were compared using ANOVA. In the fourth postoperative week, the bone volume fraction (BVF),...
Tipo: Journal article Palavras-chave: Osteoarthritis; Subchondral bone; 3D structure; Micro-CT.
Ano: 2016 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022016000100042
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4NQO Carcinogenesis: A Model of Oral Squamous Cell Carcinoma International Journal of Morphology
Rivera Martínez,César Andrés.
The experimental oral carcinogenesis induced by the chemical 4-nitroquinoline 1-oxide (4NQO) is one of the most frequent in the study of squamous cell carcinoma of the oral cavity (CCEC). The clear advantage is that the model is very similar to the physiological process of malignancy. The model has clear benefits by and is suitable for applications in therapeutic research.
Tipo: Journal article Palavras-chave: 4NQO; Experimental carcinogenesis; Oral squamous cell carcinoma; Tongue.
Ano: 2012 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022012000100055
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A Biceps Muscle Latissimus dorsi in a Dog International Journal of Morphology
Gil,Julio; Olivares,Ricardo.
This article reports the finding of a twin unreported muscle begin. In one dog, both, left and right muscle latissimus dorsi were biceps. The thin second head of m. latissimus dorsi that we founded, could be an intermediate step of comparative anatomy changes from reptilian to mammal. Man breast surgery and cardiomyoplasty, use dog latissimus dorsi as experimental, to know this information can be useful to these situations.
Tipo: Journal article Palavras-chave: Muscle; M. Latissimus dorsi; Dog; M. Biceps; Arm.
Ano: 2014 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022014000400053
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A Brief Review on the History, Methods and Applications of Plastination International Journal of Morphology
Pashaei,Shahyar.
Plastination is a process of preservation of anatomical specimens by a delicate method of forced impregnation with curable polymers like silicone, epoxy or polyester resins with vast applications in medical fields of study. Plastination is a technique of tissue preservation developed by Dr. Gunther von Hagens in 1977. In this process, water and lipids in biological tissues are replaced by curable polymers (silicone, epoxy, polyester) which are hardened, resulting in dry, odorless and durable specimens. In this technique it is possible for us to treat every part of the body and tissues to preserve it for educational purposes. Nowadays there are new and vast varieties of applications for plastination in the educational and cultural areas. This invention has...
Tipo: Journal article Palavras-chave: Plastination; Impregnation.
Ano: 2010 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022010000400014
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A Case of Anomalous Horizontal Fissure and Hypoplastic Middle Lobe of the Right Lung International Journal of Morphology
Okamoto,Keishi; Wakebe,Tetsuaki; Saiki,Kazunobu; Manabe,Yoshitaka; Tsurumoto,Toshiyuki.
During dissection practice for medical students at Nagasaki University, a horizontal fissure and hypoplastic middle lobe were encountered in the right lung of an 81-year-old Japanese female. In a normal right lung, the horizontal fissure is situated anterior to the oblique fissure. On the contrary, in the present case, the horizontal fissure was situated posterior to the oblique fissure. We identified a small, additional lobe on the medial surface of this lung. It was situated in the medial part of the oblique fissure, and was determined to be a small hypoplastic middle lobe. As a result of the hypoplasia of the middle lobe, the original horizontal fissure may have disappeared from the anterior surface. The horizontal fissure, in this case, may be a...
Tipo: Journal article Palavras-chave: Lung; Horizontal fissure of right lung; Hypoplastic middle lobe; Oblique fissure; Anomaly.
Ano: 2017 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022017000200043
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A Case of Unilateral Fenestration and Duplication of the External Jugular Vein International Journal of Morphology
Snoj,Ziga; Cvetko,Erika.
The external jugular vein is increasingly being utilized as the recipient vein in head and neck free tissue transfers, and for cannulation in order to conduct diagnostic procedures or intravenous therapies. The variations in the patterns of its course, and knowledge of them, are therefore important. We report on a unique and previously non-described unilateral fenestration and duplication of the external jugular vein found during the neck dissection of a 77-year-old female cadaver. Embryological evaluation and clinical implications of the anomaly are described. Clinicians and surgeons performing neck vascular or reconstructive surgery should be aware of this variation of the external jugular vein in the hope of preventing...
Tipo: Journal article Palavras-chave: External jugular vein; Anatomical variation; Fenestration; Duplication.
Ano: 2013 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022013000100016
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A Case of Unusual Anatomy: Maxillary Central Incisor with Two Root Canals International Journal of Morphology
Rodrigues,Evaldo Almeida; Silva,Sílvio José Albergaria da.
Success in root canal treatment is achieved after thorough cleaning and shaping followed by complete obturation of the canal system. Therefore, endodontic therapy requires specific and complete knowledge of the internal and external dental anatomy, and its variations in presentation. Such treatment may be performed in root canal systems that do not comply with the normal anatomical features described in standard textbooks. The internal anatomy of the maxillary central incisor is well known and usually presents one root canal system. This case report describes an endodontic retreatment of a maxillary central incisor with two canal systems.
Tipo: Journal article Palavras-chave: Central incisor; Two canals; Anatomy.
Ano: 2009 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022009000300030
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A Classic Case of Annular Pancreas and its Clinical Implications International Journal of Morphology
Nayak B,Satheesha; Mun Yooi,Ooi.
Annular pancreas is a rare developmental anomaly where the head of the pancreas surrounds the second part of the duodenum like a ring. This may cause the duodenal constriction, obstruction, peptic ulcers and other complications. We saw a classic case of annular pancreas. The head of pancreas surrounded the second part of duodenum completely. However there was no narrowing of the duodenum. The case may be of importance for gastroenterologists, surgeons and radiologists.
Tipo: Journal article Palavras-chave: Pancreas; Annular pancreas; Duodenum; Anomaly.
Ano: 2011 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022011000200043
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A Common 34C>G Variant at the Peroxisome Proliferator-Activated Receptor γ2- Gene in Chilean Women with Polycystic Ovary Syndrome and Controls International Journal of Morphology
Guzmán,Neftalí; Erices,Leonardo; Valdés,Patricio; Salazar,Luis A.
The 34C>G (Prol2Ala) polymorphic variant of the peroxisome proliferator-activated receptor-γ2 (PPAR-γ2) gene has been associated with polycystic ovary syndrome (PCOS). However, the results between populations are contradictory. Thus, in the present study was investigated the possible association between 34C>G polymorphism at the PPAR-γ2 gene and PCOS in Chilean women. A total of 50 unrelated women (29.1 + 8.1 years) with diagnosis of PCOS and 75 healthy controls (29.3+ 9.3 years) were included in this study. Serum lipids, glucose and uric acid levels were determined by enzymatic-colorimetric methods. The 34C>G variant in the PPAR-γ2 gene was analyzed by PCR-RFLP. Women with PCOS exhibited a higher levels of...
Tipo: Journal article Palavras-chave: Polycystic ovary syndrome; Peroxime proliferator-activated receptor; Prol2Ala polymorphism.
Ano: 2007 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022007000400030
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A Communicating Branch between the Dorsal and Superficial Ramus of the Ulnar Nerve (Kaplan's Anastomosis): Clinical and Surgery Discussion International Journal of Morphology
Torre,F; Erthal,R; Fernandes,R. M. P; Babinski,M. A; Cisne,R.
The Kaplan´s anastomosis represents the communication between the dorsal and superficial branch of the ulnar nerve distal to ulnar canal. In the present study, a case about this nerve communication, found in a male adult cadaver, is reported. Information about brachial plexus distal anastomosis is fundamental for interpretation of clinical and electrophysiological findings, in order to establish the precise diagnosis of neurological lesions at this level. Its relations with flexor carpi ulnaris muscle's tendon and with pisiform bone exposes it to iatrogenic lesions during surgery.
Tipo: Journal article Palavras-chave: Kaplan`s anastomosis; Ulnar nerve; Nerve lesion.
Ano: 2015 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022015000300010
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A Comparative Analysis of Surface Areas and Ratio of the Cervical Spinal Cord and the Vertebral Canal at the Same Levels Via MRI on Healthy Individuals International Journal of Morphology
Duman,Fatma; Ziylan,Taner; Kiresi,Demet; Cicekcibasi,Aynur Emine; Büyükmumcu,Mustafa; Duman,Tolga.
The determination of the normal values of the cross-sectional surface areas and ratios of the vertebral canal and the spinal cord on the healthy individuals is of great importance with regards to the fact that it provides convenience for the doctors to make correct pathological diagnosis because of the most suitable treatment. In this study, it has been aimed to determine the respective ratios between the vertebral canal and the spinal cord via measuring their cross-sectional surface areas at the C3­C6 vertebra levels. The study has been implemented on the Magnetic Resonance Images (MRI) of the cervical vertebral column from healthy individuals at the Department of Radiology, Meram Faculty of Medicine, Necmettin Erbakan University. The study has been...
Tipo: Journal article Palavras-chave: Cervical; Vertebral canal; Spinal cord; Area; Ratio.
Ano: 2014 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022014000400008
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A Comparative Analysis of the Morphological Characteristics of Elite Karatekas, Judokas, Taekwondoists, Boxers and Wrestlers International Journal of Morphology
Malacko,Julijan; Doder,Dragan; Stankovic,Veroljub; Dokmanac,Milorad; Savic,Biljana; Doder,Radoslava.
The aim of this research was to use a system of 37 variables of morphological characteristics on a sample of 108 elite male athletes (25 karatekas, 27 judokas, 19 taekwondoists, 18 boxers and 19 wrestlers), aged 17 to 23, to determine any statistically significant differences between the groups of athletes in terms of variable means, so that during the training process, the selection of athletes could be carried out in a proper and objective manner and that the training transformation processes could be managed more effectively. After processing the data using the statistical method of a multivariate and univariate analysis of variance (MANOVA/ANOVA), we obtained results that indicate that among the karatekas, judokas, taekwondoists, boxers and wrestlers...
Tipo: Journal article Palavras-chave: Males; Combat sports; Morphology; Comparison.
Ano: 2015 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022015000100038
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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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A Comparative Histomorphometric Study of the Stomach of Rat (Rattus norvegicus), Bat (Eidolon helvum) and Pangolin (Manis tricuspis) in Relation to Diet International Journal of Morphology
Ofusori,D. A; Caxton-Martins,E. A.
This study verified the comparative histomorphometric adaptations in the stomach of rat, bat and pangolin in relation to diet. Ten rats, ten bats and ten pangolins of both sexes were used for this investigation. The animals were sacrificed after slight anesthesia under chloroform inhalation. The stomach were excised, fixed in 10% formol saline and processed for light microscopic study. Stained slides were also subjected to morphometric analysis at a magnification of 400x. The results revealed that the cellular diameter/ density of parietal and zymogenic cells are significantly different in the three mammals (p<0.05) with the exception of the diameter of the zymogenic cells in pangolin which was not statistically significant (p>0.05) when compared...
Tipo: Journal article Palavras-chave: Pangolin; Bat; Rat; Stomach; Histomorphometry; Connective tissue fibers.
Ano: 2008 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022008000300026
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A Comparative Study of Fixatives for Axolotl Blastema Tissue International Journal of Morphology
Keskin,Ilknur; Yildirim,Berna; Kolbasi,Bircan; Öztürk,Gürkan; Demircan,Turan.
Regeneration is defined as tissue renewal and functional restoration process of the damaged parts of the body after an injury. Ambystoma mexicanum, commonly named the Axolotl, is one of the unique vertebrates, which has a remarkable ability to regenerate their extremities following the amputation. Although the process of regeneration includes several periods, it can be divided into two main phases; blastema formation and dedifferentiation. In the couple of hours following the amputation, wound closure occurs by migration of epithelial cells around the amputation site followed by macrophage infiltration and dedifferentiation of cells to turn into stem cells. Accumulated stem cells form a very authentic tissue type called blastema, which is crucial for...
Tipo: Journal article Palavras-chave: Axolotl; Blastema; Fixatives; Histology.
Ano: 2017 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022017000100009
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A Comparative Study of the Ileum in Rat (Rattus norvegicus), Bat (Eidolon helvum) and Pangolin (Manis tricuspis) as Investigated Using Histological Method International Journal of Morphology
Ofusori,D. A; Caxton-Martins,E. A; Komolafe,O. O; Oluyemi,K. A; Adeeyo,O. A; Ajayi,S. A; Oluwayinka,P. O; Adelakun,E. A; Keji,S. T; Adesanya,O. A.
The histological and morphometric differences in some parts of the gastrointestinal tracts of rat, bat and pangolin have been well established. This investigation aims at comparatively elucidating any adaptational changes the ileum of the three mammals must have adopted to meet its dietary requirements and also cope with their morphological differences. The investigation was carried out using ten rats, ten bats and ten pangolins of both sexes. The animals were slightly anaesthetized under chloroform inhalation. The intestines were harvested and the ileum excised and fixed in 10% formol saline. The tissues were processed for light microscopic study. The following stains were employed: Haematoxylin and eosin (H &amp; E), Van Gieson and Verhoeff's...
Tipo: Journal article Palavras-chave: Pangolin; Bat; Rat; Ileum; Microanatomy; Conjuntive tissue.
Ano: 2008 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022008000100023
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A Comparative Study of Variation of the Pterion of Human Skulls from 13th and 20th Century Anatolia International Journal of Morphology
Ilknur,Ari; Mustafa,Kafa Ilker; Sinan,Bakirci.
The pterion is a commonly used anthropologic and neurosurgical landmark defined as the junction of the sphenoid, temporal, parietal and frontal bones. It is commonly classified into four types based on sutural pattern: sphenoparietal, in which the sphenoid and parietal bones are in direct contact; frontotemporal, in which the frontal and temporal bones are in direct contact; stellate, in which all four bones come into contact at a point; and epipteric, in which a small sutural bone is found between the parietal bone and the greater wing of the sphenoid bone. In the present study, 44 Anatolian skulls from two different eras, Byzantine (13th century) and contemporary (20th century), were investigated for morphology and location of the pterion. Sphenoparietal...
Tipo: Journal article Palavras-chave: Anatolian; Anthropology; Calvarial sutures; Epipteric bone; Morphometry.
Ano: 2009 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022009000400051
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A Comparison of Anatomical Measurements of the Infraorbital Foramen of Skulls of the Modern and Late Byzantine Periods and the Golden Ratio International Journal of Morphology
Bakirci,S; Kafa,I. M; Coskun,I; Buyukuysal,M. C; Barut,C.
The aim of this study was to examine the morphometric characteristics of the infraorbital foramen of skulls of people living in modern society and in the late Byzantine period, to ascertain the symmetry or asymmetry of the two halves of the skulls by measuring the linear distance between various landmarks, to evaluate at the conformity between the infraorbital foramen and the golden ratio by calculating the ratios between these linear distances, and to set out the differences or similarities between the skulls of these different periods. It was found in the study that the morphometric characteristics of the infraorbital foramen in skulls of the modern period were 47.05 % circular, 41.17 % oval and 11.76 % atypical (semilunar and triangular) on the right,...
Tipo: Journal article Palavras-chave: Infraorbital foramen; Golden ratio; Byzantine period; Asymmetry; Maxilla.
Ano: 2016 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022016000200057
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A Comparison of the Effect of Chlorhexidine, Tap Water and Normal Saline on Healing Wounds International Journal of Morphology
Salami,Ayodeji A; Imosemi,Innocent O; Owoeye,Olatunde O.
Many researchers have advocated in recent times that antiseptic use in healing wounds should be discouraged. Antiseptics have been found to retard healing of wounds. Innocuous solutions like normal saline and tap water are being considered as better alternatives to antiseptics. Chlorhexidine, a commonly used antiseptic, is known to be less toxic on granulation cells. We decided to compare the effect of chlorhexidine, normal saline and tap water on healing wounds. Three groups of wistar rats had 2 by 2cm full thickness wounds made on their right dorsolateral flanks. The wounds were dressed with either chlorhexidine, normal saline or tap water. Wounds were examined at three-day intervals and measurements of area covered were taken on the first day of study...
Tipo: Journal article Palavras-chave: Chlorhexidine; Tap water; Nomal saline; Wound.
Ano: 2006 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022006000500025
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