Muscles Fibers
Mostrando 25-36 de 166 artigos, teses e dissertações.
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25. Possíveis efeitos do aparelho propulsor mandibular sobre o crescimento da mandíbula e tipos de fibras nos músculos mastigatórios. / Possibles effects of mandibular propulsive appliance on mandibular growth and masticatory muscles fibers types.
Este estudo teve como objetivos avaliar os possíveis efeitos da utilização do aparelho propulsor mandibular removível (APM), sobre o crescimento da mandíbula e tipos de fibras nos músculos masseter superficial, pterigóideo lateral e digástrico em ratas. Vinte e sete ratas isogênicas (Fisher 344) foram divididas em três grupos randomizados: dois con
Publicado em: 2009
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26. Efeito da reabilitaÃÃo dental por meio de prÃteses totais na atividade eletromiogrÃfica dos mÃsculos masseter e supra-hiÃideos / Effect of dental rehabilitation through total prosthesis in electromyographic activity of masseter and suprahyoid muscles
Electromyography is the register and detection of electric potentials of muscular fibers. It is the gold standard in evaluation of muscular functioning. Adding usefulness of electromyography up to existence of studies that report muscular alterations in total toothless subjects, and that, there are few researches about muscular changes in totals prosthesis w
Publicado em: 2009
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27. ALTERAÇÕES CERVICAIS EM MULHERES DISFÔNICAS
This study correlates cervical and voice changes that can cause muscle shortening, pain and fatigue in the cervical region and scapular waist if such disorders compromise the vocal tract and the musculoskeletal neck region. Vocal fatigue may be seen as loss of functional balance with signs of hyper or hypo-function in both physical and mental fields. This st
Publicado em: 2009
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28. Caracterização da distribuição da miosina rápida, lenta e híbrida na musculatura da mastigação / Characterization of fast, slow and hybrid fibers in masticatory muscles
Introdução: Os músculos da mastigação masseter, temporal, pterigóideo medial e pterigóideo lateral são componentes essenciais do sistema estomatognático. A mastigação decorre da movimentação destes músculos. Além da função fisiológica, os músculos da mastigação estão envolvidos na disfunção temporomandibular (DTM) que é importante ca
Publicado em: 2009
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29. Effects of L-aginine and deflazacort in muscle regeneration after experimental envenoming by Bothrops jararacussu / Efeito da L-arginina e deflazacort na regeneração muscular apos o envenenamento experimental por Bothrops jararacussu
The study evaluates the effect of deflazacort (DFZ), an anti-inflammatory oxalazine derivative of prednisone, on muscle regeneration following myonecrosis experimentally induced by B. jararacussu venom. Mice (n=15) right tibialis anterioris muscle was injected with 80 µg of venom. Two groups of animals (n=10) was treated during 5 and 20 days with a daily in
Publicado em: 2009
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30. Eletromiografia do membro superior no uso do computador : estudo comparativo entre duas ortes de punho / Eletromiography of the upper limbs during computer work : comparision of two wrist orthoses
With the advent of information technology, health problems related to the excessive use of the computer have appeared, mainly in what it refers to musculoskeletal overuse of the cervical region and upper limbs. The objective this study was to examine the effect of wrist orthoses on the electromyographycal activities of the extensor carpi ulnaris, flexor digi
Publicado em: 2009
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31. Susceptibility of Rosa Shrimp Farfantepenaeus subtilis (Pérez-Farfante, 1967) to Infectious myonecrosis virus (IMNV) / Susceptibilidade do Camarão Rosa Farfantepenaeus subtilis (Pérez-Farfante, 1967) ao Vírus da Mionecrose Infecciosa (IMNV)
Viral diseases are causing great damage in shrimp farming. With the IMN virus emergence in Northeastern Brazil in 2002, the shrimp producers faced an unknown disease that caused significant losses for the industry. Thus, a better knowledge about this disease and the investigation of how other species of shrimp are affected by the IMN virus will be an importa
Publicado em: 2009
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32. Identificação e caracterização funcional dos elementos cis-regulatorios da miostatina / Identification and functional characterization of the cis-regulatory elements of myostatin
The Myostatin protein (also known as GDF8) is a member of the transforming growth factor-β (TGF-β) superfamily and is expressed almost exclusively in skeletal muscle, both in the embryo and in the adult, where the protein circulates in the blood flow. It was initially identified in 1997 by MCPHERRON et al., and since then many studies have been dem
Publicado em: 2009
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33. Avaliação do padrão de degeneração e regeneração muscular em diferentes modelos murinos para distrofias musculares progressivas / Study of degeneration and regeneration pathways, in mice models for muscular dystrophies
The muscular dystrophies are a heterogeneous group of genetic diseases characterized by progressive and irreversible degeneration of skeletal muscles. Muscle weakness is the consequence of an imbalance between successive cycles of degeneration and regeneration, with further replacement of the degraded muscle fibers by adipose and connective tissues. Several
Publicado em: 2009
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34. Histomorphometric analysis of the response of rat skeletal muscle to swimming, immobilization and rehabilitation
The objective of the present study was to determine to what extent, if any, swimming training applied before immobilization in a cast interferes with the rehabilitation process in rat muscles. Female Wistar rats, mean weight 260.52 ± 16.26 g, were divided into 4 groups of 6 rats each: control, 6 weeks under baseline conditions; trained, swimming training fo
Brazilian Journal of Medical and Biological Research. Publicado em: 2008-09
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35. Influencia de bloqueadores de canais de calcio no processo de degeneração/regeneração muscular em camundongos ditroficos MDX / The influence iof calcium channel blockers in the process of muscular degeneration/regeneration in mdx mice
The lack of dystrophin in dystrophin-deficient fibers of mdx mice and in Duchenne muscular dystrophy leads to sarcolemmal breakdown and enhanced calcium influx followed by muscle degeneration.In this work, we examined whether the calcium channel blockers diltiazem and verapamil could protect dystrophic muscles from degeneration/regeneration. Mdx mice (n=32;
Publicado em: 2008
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36. Mechanisms of protection against myonecrosis in extraocular muscles of the mdx mice / Mecanismos de proteção a mionecrose nos musculos extra-oculares de camundongos distroficos mdx
Duchenne muscular dystrophy is one of the most common hereditary diseases. Abnormal calcium ion handling renders dystrophic muscle fibers more susceptible to necrosis. In the mdx mice, extraocular muscles (EOM) are protected and do not undergo myonecrosis. We investigated whether this protection is related to an increased expression of calcium-binding protei
Publicado em: 2008