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Accuracy of Palate Shape as sex Indicator in Human Skull with Maxillary Teeth Loss International Journal of Morphology
Suazo Galdames,Iván Claudio; Zavando Matamala,Daniela Alejandra; Smith,Ricardo Luiz.
In forensic medicine, diagnosis of sex is the first step in the identification of human skulls. A first approximation is carried out via the qualitative analysis of a series of morphological indicators of sexual dimorphism. Classical studies (Krogman & Iscan, 1986) described 14 indicators for the diagnosis of sex with an accuracy of 90%, and one of these indicators is the shape of the palate. This study analyzed the effect of the loss of teeth on the accuracy of the diagnosis of sex in Brazilians adult skulls, using the shape of the palate as an indicator. We used 98 skulls of adult Brazilians, comprising 35 females and 63 males with an average age of 39.3 years (SD 7.8). The skulls were classified into two groups, namely the fully edentulous...
Tipo: Journal article Palavras-chave: Sexual Dimorphism; Sex determination; Palate; Tooth loss.
Ano: 2008 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022008000400034
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Acromial Morphology and Subacromial Architecture in a South African Population International Journal of Morphology
Naidoo,N; Lazarus,L; Osman,S. A; Satyapal,K. S.
The acromion is classically described as one of the three scapular processes. Its antero-inferior aspect has been identified as the prime region of rotator cuff pathology. The purpose of this study was to determine the morphologic state of the acromion and the relative subacromial architecture within a South African population. The sample series comprised the morphological observation of one hundred and eighty-two scapulae specimens (n= 182). The classification scheme as stated by Bigliani et al. (1986) was employed. The morphometric architecture of the subacromial space was also investigated (n= 120). (a) Acromial Type: (i) Type I (flat inferior surface) 34.6%; (ii) Type II (curved inferior surface) 51.1%; (iii) Type III (hooked inferior surface) 14%. (b)...
Tipo: Journal article Palavras-chave: Acromion; Morphology; Subacromial architecture; Morphometry.
Ano: 2015 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022015000300002
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Acromial Morphometric Analysis Using Imaging Software International Journal of Morphology
Crahim,Lucas Fernandes; Nagato,Akinori Cardozo; Rocha,Carolina de Lourdes Julião Vieira; Silva,Marco Aurélio dos Santos; Bandeira,Ana Carla Balthar; Ferreira,Tereza Aparecida; Bezerra,Frank Silva.
The aim of this study was to accurately measure acromial morphology in order to describe the anatomical patterns of its subtypes and to conduct a survey of the literature regarding the relationships between morphological subtypes and their related diseases. We photographed scapulae from the Institute of Anatomy, University Severino Sombra, and analyzed the images using Image-J Software®. The average acromial angle was 139.23° ± 2.781, with no significant difference between the right and left sides. There was a positive correlation between the acromial angle and the angle of the spine of the scapula. The correlation mentioned above plays an important role in disorders of the shoulder-particularly impingement syndrome-which reinforces the importance of...
Tipo: Journal article Palavras-chave: Acromial morphology; Acromioclavicular; Impingement syndrome; Morphometry.
Ano: 2013 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022013000100053
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Action of Trivalent Chromium on Rat Liver Structure. Histometric and Haematological Studies International Journal of Morphology
Silva,Rogério Ferreira da; Lopes,Ruberval A; Sala,Miguel A; Vinha,Dionísio; Regalo,Simone C. H.; Souza,Ana Maria de; Gregório,Zita Maria de O.
The trace mineral trivalent chromium (Cr3+) is an essential nutrient involved in the regulation of carbohydrate, lipid and protein metabolism via an enhancement of insulin action. The present work had as objective to characterize histopathologically and histometrically the hepatic alterations of female Wistar rats, determined by the chromium III administration in drinking water. Adult rats received ration and drinking water ad libitum containing 300 or 500 mg/l chromium III during 4 months. Control animals received only water and ration. All animals were sacrificed by lethal dose of anesthetic. Samples of liver were fixed in 10% formalin for 24 h. Tissues for microscopical pathology were processed using standard procedures. Paraffin sections prepared at 6...
Tipo: Journal article Palavras-chave: Liver; Rat; Chromium; Morphometry; Hematology.
Ano: 2006 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022006000300014
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Actividades Prácticas en Anatomía: Factor Nivelador de los Contrastes de Origen entre los Alumnos de Medicina International Journal of Morphology
Inzunza,Oscar; Schneeberger,Daniela; Salgado,Guillermo; Cantín,Mario.
Las mediciones de los logros educacionales y las pruebas de selección de ingreso a la educación superior están fuertemente correlacionadas con los antecedentes socioeconómicos y el tipo de establecimiento educacional del postulante, situación que representaría un factor predictor del rendimiento para los alumnos de primer año universitario. Considerando que los puntajes de ingreso para la carrera de medicina presentan una diferencia significativa entre los primeros y últimos seleccionados, nos preguntamos si existe algún factor nivelador que reduzca esa brecha de origen. Se analiza el rendimiento en las evaluaciones prácticas y pruebas teóricas, al comienzo y al final del año académico 2009 comparando los primeros y últimos seleccionados de acuerdo al...
Tipo: Journal article Palavras-chave: Educación médica; Estudiantes de medicina; Aprendizaje médico; Ecoe; Osce.
Ano: 2017 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022017000200018
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Acute Effects of Sulphur Mustard Gas on the Number of Lymphocytes in the Rat's Spleen International Journal of Morphology
Mehrdad,Jahanshahi; Bahadoran,H; Asadi,M. H.
Sulphur mustard (SM), commonly known as mustard gas is an alkylating agent that causes serious blisters upon contact with human skin. SM is frequently used as a chemical warfare agent. There is some evidence for sulfur mustard-induced lymph system effects in humans. Between 2000-2001, 42 male albino Wistar rats were used. After accommodation with environment, we divided rats to control, sham and experimental groups (2.5 mg/kg, 5 mg/kg, 10 mg/kg, 20 mg/kg and 40 mg/kg). Then we injected sulphur mustard oil in rat's intraperitoneal space. Then their spleens were removed for histological verification. Our results showed that significant difference in lymphocytes number in experimental groups after 24 hours. The number of lymphocytes in 5, 10, 20 and 40 mg/kg...
Tipo: Journal article Palavras-chave: Mustard gas; Lymphocytes; Spleen.
Ano: 2008 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022008000200031
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Adaptación de la Técnica de Impregnación Argéntica de Llombart para la Demostración de Fibras Nerviosas, en Cualquier Tejido en Cortes por Parafina International Journal of Morphology
Rivas Manzano,Patricia; Chavira Ramírez,Carlos Tonatiuh; Ortiz Hernández,Rosario.
En la investigación biológica sigue siendo necesaria la demostración de la inervación periférica en numerosos tejidos y órganos. El objetivo de este trabajo fue rescatar y modernizar uno de los métodos más constantes que hemos probado para demostrar la inervación periférica. La técnica de Llombart para fibras nerviosas se adaptó en cortes por parafina de 7 µm en diferentes tejidos animales. La impregnación argéntica se hizo por goteo en cámara húmeda. Se demostraron en forma constante, precisa y seriada terminaciones nerviosas y corpúsculos sensoriales, neuronas y fibras nerviosas periféricas. A pesar de la alta especificidad para fibras nerviosas, la técnica no compromete el panorama tisular por lo que da bellas imágenes de conjunto. Sin ser una técnica...
Tipo: Journal article Palavras-chave: Impregnación argéntica; Fibras nerviosas; Inervación periférica; Células argentafines.
Ano: 2014 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022014000300037
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Additional Muscle Slip of Flexor Carpi Ulnaris Associated with Anomalous Ulnar Nerve and Ulnar Artery in the Distal Forearm International Journal of Morphology
Ramana Vollala,Venkata; Bhat,Seetharama; Rodrigues,Vincent; Prasad,Deepthinath; Pamidi,Narendra.
During routine dissection classes to under gradúate medical students, we observed an anomalous flexor carpi ulnaris muscle associated with abnormal ulnar nerve and ulnar artery in the distal part of forearm. There was an additional belly arising from the lower part of the flexor carpi ulnaris muscle and crossed ulnar nerve and vessels, median nerve and ended in a broad aponeurosis which crossed the tendons of flexor digitorum superficialis and merged with the deep f ascia and flexor retinaculum. The ulnar nerve and ulnar artery divided into their terminal branches in the lower part of the forearm. However, the distribution of the terminal branches of both ulnar nerve and artery were normal. An understanding of these unusual findings may be clinically...
Tipo: Journal article Palavras-chave: Flexor carpi ulnaris; Ulnar nerve; Ulnar artery.
Ano: 2008 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022008000200019
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Adenomioepitelioma de la Mama: Reporte de un Caso International Journal of Morphology
Tapia E,Oscar.
El adenomioepitelioma es un infrecuente tumor de la mama, conformado por una proliferación bifásica de células epiteliales y mioepiteliales. Presentamos las características clínicas y morfológicas de un caso de adenomioepitelioma benigno diagnosticado en una paciente de 34 años en la Unidad de Anatomía Patológica del Hospital Hernán Henríquez Aravena de Temuco.
Tipo: Journal article Palavras-chave: Neoplasia de mama; Adenomioepitelioma; Células mioepiteliales.
Ano: 2011 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022011000300037
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Adiponectin Effect on Nitric Oxide Secretion by Normal and Endometriotic Human Endometrial Stromal Cells: in vitro Study International Journal of Morphology
Bohlouli,Somayeh; Khazaei,Mozafar; Rabzia,Arezou; Khazaei,Mohammad Rasool; Sadeghi,Ehsan.
Endometriosis is an estrogen-dependent disease in reproductive age women. Adiponectin and Nitric oxide (NO) have an important role in physiologic functions especially in human reproductive system. Levels of NO increased in the endometriosis patients but serum adiponectin levels decreased in woman with endometriosis. The aim of this study was to determine adiponectin effect on nitric oxide secretion by cultured normal and endometriotic human endometrial stromal cells. In this experimental study, normal (n= 10) and endometriotic endometrial biopsies (n= 10) were taken in sterile condition. Stromal cells isolated and cultured in in DMEM/ F12 medium and treated with adiponectin concentrations (0, 10, 100, and 200 ng/ml) for 24 and 48 hours. NO assay was done...
Tipo: Journal article Palavras-chave: Adiponectin; Nitric oxide; Endometriosis; Stromal cell.
Ano: 2015 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022015000100053
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Age and Sex-Related Geometrical Variation of Ramus mandibulae of Sus scrofa's (Mammalia: Artiodactyla) Jaws International Journal of Morphology
Hohl,Leandro dos S. L; Sicuro,Fernando L; Azorit,Concepción; Carrasco,Rafael; Rocha-Barbosa,Oscar.
Morphological variation of the ramus mandibulae of wild Sus scrofa was described and correlated to sex and age differences. Young forms (n=27, 15 males, 12 females) and adults (n=23, 13 males, 10 females) were analyzed through Geometric Morphometrics (2-D) to assess differences between groups. We found significant differences between age- and sex-related shape variations at ramus mandibulae level. Young wild boars present bulky angular process with backward oriented coronoid process, while adults show slender jaw vertical ramus, and orthogonally oriented coronoid process. The ramus mandibulae in female wild boars is more robust and bulky than in males. The morphological changes between young and adult forms are related to alterations in the osteo-muscular...
Tipo: Journal article Palavras-chave: Mandible; Ontogeny; Sexual Dimorphism; Wild boar.
Ano: 2014 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022014000400026
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Age at Menarche and Related Factors in Girlsof Urban Areas of Markazi (Central) Province of Iran International Journal of Morphology
Bayat,ParvinDokht; Ghanbari,Ali; Khazaei,Mozafar; Ghorbani,Rostam; Amiri,Sara.
The age at menarche is an indicator of racial, geographical and nutritional patterns of different societies. This cross-sectional study conducted on 1223 girls aged 14-20 in the Markazi (Central) Province, Iran in 2010. In this research, the age at menarche, as the main variable, was determined for each city and compared between different cities. The statistical analyses included c2 test for determining statistically significant differences, variance analysis for determining the difference between groups, and Pearson correlation coefficient for determining the relationship between variables. The average age of first menstruation was 13.21±1.33 years in the Markazi Province, with no significant difference among the cities of the province. This age is...
Tipo: Journal article Palavras-chave: Fertility; Growth; Iran; Menarche.
Ano: 2012 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022012000100002
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Age Effect in the Morphological Traits Performance for Sex Determination in Human Skulls and Mandibles International Journal of Morphology
Suazo Galdames,Iván; Zavando,Daniela.
In this study we tested the hypothesis that diagnostic performance of the morphological indicators for sexual dimorphism are reduced as they are applied in skull and mandibles of older subjects. We used 275 adult human skulls, 250 of these with mandible, all subjects with sex and age registry. Sixteen classic morphological indicators of sexual dimorphism were evaluated, this information was compared with the registry and results noted in terms of precision. The best general performance of morphological indicators of sexual dimorphism were recorded in the 31 - 40 and 61 - 70 years, age range groups. Lowest precision ws recorded in the group corresponding to subjects between 21 ­ 30 years. Our results do not support the proposed hypothesis and suggest a...
Tipo: Journal article Palavras-chave: Sexual dimorphism; Sex determination; Aging; Age; Skull.
Ano: 2012 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022012000100053
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Age Estimation from Ossification of the Medial Clavicular Epiphysis by Computed Tomography International Journal of Morphology
El Morsi,Doaa A.; Abo El-Atta,Hend M; ElMaadawy,Merit; Tawfik,Ahmed M; Batouty,Nihal M.
The current study intended to evaluate the accuracy of age estimation from the development of the medial clavicular epiphysis (sternal end of the clavicle) in Egyptian population using computed tomography (CT) and to develop a discriminant formula that can be used in Egyptians. The study was conducted on 142 subjects (84 males and 58 females) after taken informed consent. They were subjected to multi-slice CT on the medial end of clavicles of both sides. The results revealed that the age of non - union was seen at 8­17 years; incomplete union at 15­20 years and complete union was seen at 20 years. It is concluded that the ossification of medial clavicular end could be used for age estimation. Also CT is a good visualization tool to be used. Regression...
Tipo: Journal article Palavras-chave: Forensic science; Age estimation; Ossification status; Medial clavicular epiphysis; Sternal end of the clavicle; Identification; Computed tomography.
Ano: 2015 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022015000400038
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Age Prediction in the Adult Based on the Pulp-to-Tooth Ratio in Lower Third Molars: A Cone-beam CT Study International Journal of Morphology
Alsoleihat,Firas; Al-Shayyab,Mohammad H; Kalbouneh,Heba; Al-Zer,Heba; Ryalat,Soukaina; Alhadidi,Abeer; Saoud,Hamza; Shaweesh,Ashraf I; Al-Omoush,Salah A; Khraisat,Ameen.
Estimation of age-at-death is an integral part of the identification process of individuals in many forensic odontology cases where their identity cannot be determined by visualization or other ways. Dental age estimation in the adult is more challenging as most of the dentition is completely developed by 18 years of age. This study employs a mesio-distal (MD) pulp-to-tooth ratio taken at the neck of lower third molars (LM3) to provide an estimation of age at the time of radiographic imaging based on the well-known fact that pulp volume tends to decrease with advancing age due to continued apposition of secondary dentine throughout adulthood. A total of 155 Cone-beam computed tomography (CBCT) radiographs of LM3s for a random sample of 155 Jordanian Arabs...
Tipo: Journal article Palavras-chave: Estimation of age-at-death; Forensic odontology; Archaeology; Paleontology; Dental age estimation; Third molars.
Ano: 2017 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022017000200017
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Age Related Structural Changes in the Bulbourethral Gland of Gaddi Goat (Capra hircus) International Journal of Morphology
Archana,P; Katiyar,R. S; Sharma,D. N; Farooqui,M. M; Prakash,Ajay.
A study was conducted on the bulbourethral glands of 30 Gaddi goats, divided into three groups of 10 animals in each viz; Prepubertal (1 day old to < 18 months of age), Pubertal (18 months to < 5yrs of age) and Postpubertal (>5yrs of age). The study revealed that the glands grew at a faster speed up-to 6 months of postnatal life after which the pace slowed down considerably. Almost 10 times increase in weight and more than three times increase in all the linear mensurations were observed in prepubertal group from the time of birth. The stroma vs parenchyma ratio which was 80:20 in one-day-old kids showed three times increase in parenchyma in prepubertal animals, and the ratio became 43:57. In one day old kids luminated and non-luminated secretory...
Tipo: Journal article Palavras-chave: Bulbourethral gland; Gaddi goat; Histology; Histochemistry.
Ano: 2011 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022011000200049
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AGEING INDUCES APOPTOSIS AND INCREASES HSP70 STRESS PROTEIN IN THE EPIDIDYMIS OF Octodon degus International Journal of Morphology
Bustos-Obregón,Eduardo; Esponda,Pedro.
Apoptosis has been largely analyzed in the testis. Nevertheless, the epididymis has been scarcely studied. We analyzed the number of apoptotic cells in the different regions (caput, corpus and cauda) of the epididymis of the South American rodent Octodon degus both young and senile. Apoptosis was identified using the TUNEL method which detects in situ DNA fragmentation. Apoptosis was detected in the principal cells of the epididymal epithelium. The caput epididymis was the region more affected. The caput of young animals showed that 0.32/1000 cells were apoptotic in contrast to 5.1/1000 of senile animals. Also in the cauda epididymis apoptosis is increased with age, appearing 0.14/1000 and 3.9/1000 in young and senile animals, respectively. On the other...
Tipo: Journal article Palavras-chave: Androgens; Apoptosis; Epididymis; Ageing; Heat Shock Proteins.
Ano: 2004 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022004000100005
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Agenesia de Terceros Molares, Prevalencia, Distribución y Asociación con otras Anomalías Dentales International Journal of Morphology
Herrera-Atoche,José Rubén; Colomé-Ruiz,Gabriel Eduardo; Escoffié-Ramírez,Mauricio.
La agenesia de terceros molares se ha reportado en un 24,3% en México. La agenesia dental está asociada a otras anomalías dentales debido a su origen genético. El objetivo del presente estudio fue determinar la prevalencia y distribución de agenesia de terceros molares así como establecer su asociación con otras anomalías dentales en una población ortodóntica. La muestra incluyó 670 pacientes ortodónticos de 9 a 20 años de edad. Se excluyeron pacientes con tratamiento ortodóntico previo y condiciones sindrómicas. Se calculó la prevalencia de agenesia de terceros molares y se comparó por sexo. Posteriormente los pacientes fueron divididos en 2 grupos, con agenesia de al menos un tercer molar y un grupo control y en ambos se calculó la prevalencia de 10...
Tipo: Journal article Palavras-chave: Agenesia; Anomalías dentales; Prevalencia; Tercer molar.
Ano: 2013 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022013000400035
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Agenesia del Tercer Molar en Jóvenes entre 14 y 20 Años de Edad, Antofagasta, Chile International Journal of Morphology
García-Hernández,Fernando; Toro Yagui,Oscar; Vega Vidal,Manuel; Verdejo Meneses,Mauricio.
Se define agenesia como la ausencia de dientes por alteraciones genéticas aisladas o sindrómicas. La agenesia del tercer molar está asociada a malformaciones y considerada por diversos autores, consecuencia de la evolución humana. Son los dientes con mayor prevalencia de agenesia junto con segundos premolares e incisivos laterales. La prevalencia varía entre 9% y 37%, en tanto, Arboleda et al. (2006) señalan una prevalencia del 20%. La literatura señala variables estadísticas porcentuales, por género, por arcada dentaria, por lado y por diente, con escasos artículos sobre grupos originarios de Chile. La población en estudio consistió en 400 jóvenes (200 hombres y 200 mujeres) entre 14 y 20 años de edad pacientes de una clínica de ortodoncia de la ciudad de...
Tipo: Journal article Palavras-chave: Antropología; Odontología; Agenesia; Tercer molar.
Ano: 2008 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022008000400008
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Agenesia del Tercer Molar en Pacientes Atendidos en la Clínica Odontológica de la Universidad de Antofagasta, Chile International Journal of Morphology
García-Hernández,Fernando; Araneda Rodriguez,Claudia Patricia.
Se define agenesia como la ausencia de dientes por alteraciones genéticas aisladas o sindrómicas. La agenesia del tercer molar está asociada a malformaciones y es considerada por diversos autores, consecuencia de la evolución humana (Larmour et al., 2005). Son los dientes con mayor prevalencia de agenesia junto con segundos premolares e incisivos laterales (Fuller &amp; Denehy, 1984). La prevalencia varía entre 9% y 37% (McNamara &amp; Foley, 2006); Arboleda et al. (2006) señalan una prevalencia del 20%. La literatura indica variables estadísticas porcentuales, por género, por arcada dentaria, por lado y por diente, con escasos artículos sobre grupos originarios de Chile. La población en estudio consistió en 52 hombres y 48 mujeres, de 14 a 26 años...
Tipo: Journal article Palavras-chave: Antropología; Odontología; Agenesia; Tercer molar.
Ano: 2009 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022009000200014
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