Consulta: subjectFacets:"Diaphragm"
Registros recuperados: 10
Data/hora: 06/06/2024 05:27:59

Contribution Towards the Anatomy of the Esophageal Hiatus and its Relationship with the Presence of Bundles of Collagen Fibers in its Margins
Provedor de dados: 77
Autores: Filho,José Jeová de Oliveira; Filho,Benedito Herani; Reis,Francisco Prado; Feitosa,Vera Lúcia Correa; Aragão,José Aderval.
The aim was to detect the presence of bundles of collagen fibers in the margins of the esophageal hiatus and establish if there is any relationship of these bundles with the anatomy of the hiatus. Ten adult male cadavers, with no gross anatomical alteration caused by trauma, surgery or disease, upon the esophageal hiatus were used in the study. A piece of anatomical structure comprising the diaphragm with the esophageal hiatus and adjacent tissues was removed, dissected and 10% formol embedding. With the aid of a digital caliper, measurements of the perimeter of the esophageal hiatus were done both in the abdominal and thoracic sides. For the structural study each margin was divided in six sections. Staining techniques of Masson and Picrosirius-hematoxilin...
Tipo: Journal article
Palavras-chave: Diaphragm; Esophagogastric Junction; Collagen; Cadaver; Humans.
Ano: 2012
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022012000300015

A Review on the Celiac Trunk Compression Syndrome: Some Anatomic Clinical-Surgical Aspects
Provedor de dados: 77
Autores: Petrella,Selma; Prates,José Carlos.
The objective of this study was to review some celiac trunk compression syndrome aspects such as: symptom-posture relationship; absence of symptoms; syndrome-age relationship; angiographic study on anatomy of the celiac trunk stenosis; congenital or acquired origin; invasive diagnostic tests; surgical and postoperative results.
Tipo: Journal article
Palavras-chave: Arterial occlusive disease; Celiac artery; Celiac plexus; Diaphragm; Syndrome.
Ano: 2008
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022008000200008

Ultrastructural Study of the Denervated Diaphragm in Rats
Provedor de dados: 77
Autores: Torrejais,M. M; Soares,J. C; Matheus,S. M. M; Mello,J. M; Francia-Farje,L. A. D; Jeronimo,L. C; Vicente,E. J. D.
The structural alterations that occur in the muscle fibers of denervated rat diaphragms were studied. Fifteen adult male albino rats (Rattus norvegicus) with a mean weight of 200 g and about 60 days of age were used. Chronically denervated diaphragms were obtained and the animals were sacrificed after 4, 8 and 12 weeks of denervation. The left antimere of the diaphragm was denervated by sectioning of the phrenic nerve and the right antimere served as control. Each antimere was divided into fragments, which were used for analysis transmission electron microscopy. During the initial phase of denervation (4 weeks), ultrastructural muscle modifications appeared in scattered fibers and in foci along these fibers. Muscle fibers with foci of less dense and...
Tipo: Journal article
Palavras-chave: Denervation; Diaphragm; Muscle fiber; Ultrastructural; Rat.
Ano: 2013
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022013000300025

Morphometric and Morphological Analysis of Neuromuscular Junction Alterations in the Denervated Rat Diaphragm
Provedor de dados: 77
Autores: Torrejais,M. M; Soares,J. C; Matheus,S. M. M; Mello,J. M; Francia-Farje,L. A. D; Vicente,E. J. D.
The morphological and structural alterations that occur in the neuromuscular junctions of the denervated rat diaphragm were studied. Fifteen adult male albino rats (Rattus norvegicus) aged about 60 days and with a mean weight of 200 g were used. Chronically denervated diaphragms were obtained and the animals were sacrificed after 4, 8 and 12 weeks of denervation. The left antimere of the diaphragm was denervated by section of the phrenic nerve and the right antimere was used as control. Each antimere was divided into three fragments: one was used for histochemical (nonspecific esterase) and morphometric study of neuromuscular junctions, and the other two were used for transmission and scanning electron microscopy (SEM) analysis. Histochemical analysis of...
Tipo: Journal article
Palavras-chave: Diaphragm; Neuromuscular junction; Denervation; Rat.
Ano: 2009
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022009000400043

Relationship of the Celiac Trunk with Median Arcuate Ligament of the Diaphragm
Provedor de dados: 77
Autores: Petrella,Selma; Rodriguez,Celio Fernando de Sousa; Sgrott,Emerson Alexandre; Fernandes,Geraldo José Medeiros; Marques,Sergio Ricardo; Prates,José Carlos.
In the present study different positions of the median arcuate ligament in relation to the celiac trunk as well as measurements of overlap and distance, also the approach between the two structures were investigated. In addition histological studies of the diaphragm crura and the median arcuate ligament were performed. Sixty-three cadavers fixed in formalin 10% aqueous solution and 20 non-fixed adult cadavers of both sexes were studied. Dissections of the celiac trunk were performed after dissection of the peritoneal cavity in the laboratories of the Anatomy Division of the UNIFESP-EPM, UNILUS and UNISA, and during necropsies in the City Morgue of the UNIFESP-EPM and USP. Regarding morphological analysis under light microscopy, three non-fixed cadavers...
Tipo: Journal article
Palavras-chave: Celiac trunk; Ligaments; Syndrome; Diaphragm; Arterial occlusive disease.
Ano: 2006
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022006000300023

Morphologic Alterations Resulting from Denervation of the Diaphragm in Rats
Provedor de dados: 77
Autores: Torrejais,M. M; Soares,J. C; Matheus,S. M. M; Francia-Farje,L. A. D; Mello,J. M; Vicente,E. J. D.
The morphological alterations that occur in the muscle fibers of denervated rat diaphragms were studied. Fifteen adult male albino rats (Rattus norvegicus) with a mean weight of 200 g and about 60 days of age were used. Chronically denervated diaphragms were obtained and the animals were sacrificed after 4, 8 and 12 weeks of denervation. The left antimere of the diaphragm was denervated by sectioning of the phrenic nerve and the right antimere served as control. Each antimere was divided into two fragments, which were used for histological (H.E.) and histoenzymological (NADH-TR and myofibrillar ATPase). After 4 weeks, denervated muscle fibers showed important light microscopic alterations: atrophy with angular profiles in cross-sections, cytoplasm...
Tipo: Journal article
Palavras-chave: Diaphragm; Muscle fiber; Denervation; Rat.
Ano: 2012
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022012000300061

Celiac Trunk Compression Syndrome: A Review
Provedor de dados: 77
Autores: Petrella,Selma; Prates,José Carlos.
The purpose of the present review is to report the anatomic and the clinical-surgical aspects involved in the celiac trunk compression syndrome by the median arcuate ligament of the diaphragm, reviewing the major findings of the syndrome in the anatomic field during dissection of cadavers, followed by clinical-surgical findings of stenosis of the celiac trunk, the relationship of this stenosis with the patient's symptoms and healing after decompression of that artery; invasive and non-invasive methods used to diagnose compression; the stenotic effect of physiologic mechanisms of the median arcuate ligament, aorta and celiac trunk displacement during respiration; anatomy of the aortic channel and celiac plexus; the median arcuate ligament and the celiac...
Tipo: Journal article
Palavras-chave: Celiac artery; L igaments; Celiac plexus; Syndrome; Diaphragm; Arterial occlusive disease.
Ano: 2006
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022006000400022

Multiple congenital defects in a newborn foal
Provedor de dados: 45
Autores: Silva,J.F.; Serakides,R.; França,S.A.; Boeloni,J.N.; Ocarino,N.M.
A case of multiple congenital defects in a newborn foal is reported. The animal showed hypoplasia of the left pelvic limb bones, uterus unicornis, congenital diaphragmatic hernia, and unilateral renal and ureteral agenesis. This report includes the macroscopic and microscopic lesions observed in the case.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Foal; Congenital defects; Uterus; Kidney; Diaphragm.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352014000601671

Changes in types of muscle fibers induced by transcutaneous electrical stimulation of the diaphragm of rats
Provedor de dados: 56
Autores: Costa,D.; Cancelliero,K.M.; Campos,G.E.R.; Salvini,T.F.; da Silva,C.A.
The objective of the present study was to assess the effect of transcutaneous electrical diaphragmatic stimulation (TEDS) on different types of diaphragm muscle fibers. Male Wistar rats (8-12 weeks old) were divided into 2 experimental groups (N = 8 in each group): 1) control, 2) animals submitted to TEDS [frequency = 50 Hz; T ON/T OFF (contraction/relaxation time) = 2/2 s; pulse duration = 0.4 ms, intensity = 5 mA with a 1 mA increase every 3 min for 20 min] for 7 days. After completing this treatment period, the I, IIA, IIB, and IID diaphragm muscle fibers were identified using the mATPase technique. Statistical analysis consisted of the normality, homoscedasticity and t-tests (P &lt; 0.05). There was a 19.6% (P &lt; 0.05) reduction in the number of type...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Diaphragm; Transcutaneous electrical stimulation; Muscle fiber.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2008000900011

A comparative study of aging of the elastic fiber system of the diaphragm and the rectus abdominis muscles in rats
Provedor de dados: 56
Autores: Rodrigues,C.J.; Rodrigues Junior,A.J.
In the present study the age-related changes of the striated muscle elastic fiber system were investigated in the diaphragm and rectus abdominis muscles of 1-, 4-, 8- and 18-month-old rats. The activation patterns of these muscles differ in that the diaphragm is regularly mobilized tens of times every minute during the entire life of the animal whereas the rectus abdominis, although mobilized in respiration, is much less and more irregularly activated. The elastic fibers were stained by the Verhoeff technique for mature elastic fibers. Weigert stain was used to stain mature and elaunin elastic fibers, and Weigert-oxone to stain mature, elaunin and oxytalan elastic fibers. The density of mature and elaunin elastic fibers showed a progressive increase with...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aging; Elastin; Extracellular matrix; Diaphragm; Rectus abdominis.
Ano: 2000
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2000001200008