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| Registros recuperados: 10 | |
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| 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 |
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| 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 < 0.05). There was a 19.6% (P < 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| Registros recuperados: 10 | |
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