Mechanical Stretch
Mostrando 1-12 de 113 artigos, teses e dissertações.
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1. (DIS)ABLING BODY AND CONSCIOUSNESS: TECHNOLOGICAL AFTERNESS AND AFTER-HUMANS IN REALIVE AND UPGRADE
RESUMO Este artigo fala sobre espaços pós-humanos e pós-vida tecnológica associados à fisionomia dos humanos. A alteração mecânica no funcionamento biológico é experimentada diretamente na apreensão da consciência orgânica. A ruptura na consciência divide-a em duas partes distintas - uma pertencente ao humano em desaparecimento, a outra ao cibe
Trab. linguist. apl.. Publicado em: 23/09/2019
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2. The development of a mechanical device to stretch skeletal muscle of young and old rats
OBJECTIVE: How much force is needed to stretch skeletal muscle is still unknown. The aim of this study was to develop a device that mechanically stretches rat muscle to compare the force (N) required to stretch the soleus muscle of young and aged rats and the tibio-tarsal angle joint at neutral and stretched positions. METHODS: Twelve female Wistar rats we
Clinics. Publicado em: 09/09/2019
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3. The influence of long chain branches of LLDPE on processability and physical properties
Two polyethylene-based on single-site metallocene catalyst (mLLDPE) were selected to characterize the effect of long chain branching (LCB) on blown film processability, optical and mechanical properties. 13C NMR and parallel plate rheology were used to identify LCB presence on LLDPEs. Blown films were produced from 100% LLDPEs using three different machine d
Polímeros. Publicado em: 04/12/2015
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4. Stretch-induced nerve injury: a proposed technique for the study of nerve regeneration and evaluation of the influence of gabapentin on this model
The rat models currently employed for studies of nerve regeneration present distinct disadvantages. We propose a new technique of stretch-induced nerve injury, used here to evaluate the influence of gabapentin (GBP) on nerve regeneration. Male Wistar rats (300 g; n=36) underwent surgery and exposure of the median nerve in the right forelimbs, either with or
Braz J Med Biol Res. Publicado em: 06/11/2013
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5. Mecanismos de proteção da distrofia muscular : estudo proteômico e terapia farmacológica / Protective mechanisms of muscular dystrophy : proteomic study and pharmacological therapy
In Duchenne Muscular Dystrophy (DMD) and in the mdx mice model of DMD, the lack of dystrophin leads to muscle degeneration. The pathogenesis of DMD is related to sarcolemmal fragility, mechanical stress and increased influx of calcium in muscle fibers, due to dysfunction of ion channels, such as the stretch-activated calcium channels. The knowledge of the pr
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 30/07/2012
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6. O tempo e o percentual de alongamento estático influenciam a resposta mecânica do tendão? / How does static stretching influence the tendon s mechanical response
Background: Stretching exercises basically aim at obtaining physiological and functional balance since they reduce tissue rigidity and seem to have a positive impact on lesion prevention. However, the parameters that govern the practice of stretching have not yet been standardized. The objective of this study was to analyze in vitro the mechanical response o
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 12/03/2012
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7. Desenvolvimento e caracterização de dispositivo de PLLA/Trietil-Citrato associado à derme suína acelular para reparação de lesões cutâneas / Development and characterization of PLLA/Triethyl citrate device associated to acellular dermal matrix to repair cutanous wounds
One of the challenges of the Tissue Engineering is to promote a better functioning of organs and tissues damaged by diseases or traumas. With target for developing a biphasic device for future regeneration and dermal application in Tissue Engineering and Regenerative Medicine, fibroblasts from VERO cell line were cultivated on a porcine acellular dermal matr
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 15/02/2012
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8. CaracterizaÃÃo das vias neuro-humorais no retarde do esvaziamento gÃstrico de lÃquidos advindo da distensÃo mecÃnica atrial direita em ratos acordados. / Characterization of neuro-humoral pathways involved in delayed gastric emptying of liquids due to mechanical right atrial stretch in awake rats.
Right atrium mechanical stretch (AS) increases gastric motility in anesthetized rats. We aimed to study the effect of AS on gastric emptying (GE) in awake rats and the related neuro-humoral pathways ivolved. Male albino rats (N=361, 250-280g) had a silicone balloon inserted in the right atrium. After 24-h, the central venous pressure (CVP), heart rate (HR) a
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 26/02/2010
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9. Passive stiffness of rat skeletal muscle undernourished during fetal development
OBJECTIVES: The aim of the study was to investigate the effect of fetal undernutrition on the passive mechanical properties of skeletal muscle of weaned and young adult rats. INTRODUCTION: A poor nutrition supply during fetal development affects physiological functions of the fetus. From a mechanical point of view, skeletal muscle can be also characterized b
Clinics. Publicado em: 2010
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10. ECA e receptor AT1 participam da mecanotransdução de sinais hemodinâmicos independentemente da angiotensina II / ACE and AT1 receptor are involved in mechanotransduction by hemodynamica forces independently of angiotensin II
Hemodynamic forces such as pressure and shear stress modulate the patophysiolgy of the cardiovascular system. In this study, we investigated two transmembranic key molecules of the renin-angiotensin system (RAS) as mechanosensors and mechanotransducers of physical forces: Angiotensin Converting Enzyme (ACE) and Angiotensin II type 1 Receptor (AT1). ACE is an
Publicado em: 2010
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11. Influencia do fator de transcrição MEF2C na hipertrofia miocardica induzida por sobrecarga pressorica em camundongos / Influence of the transcription factor MEF2 in cardiac hypertrophy induced by overload pressure in mice
Heart diseases are frequently associated with myocardial hypertrophy. Mechanical stimuli can trigger hypertrophic growth as well as degeneration and death of the cardiac myocytes. The MEF2C family of transcription factors plays a role in the process of myocardial hypertrophy. It is composed by 4 members, MEF2A, B, C and D, and the MEF2C is the main transcrip
Publicado em: 2008
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12. Smooth muscle cell behavior of rat ventral prostate after androgen deprivation in vivo and mechanical stretch assay in vitro / Comportamento da celula muscular lisa da prostata ventral de ratos apos privação androgenica in vivo e sob estiramento mecanico in vitro
Smooth muscle cells (SMC) are the main component of the prostatic stroma and play important roles in the organ physiology, acting on the contraction associated with ejaculation and on the remodeling related to neoplasias or androgen deprivation, on the production of paracrine factors and the synthesis/degradation/reorganization of extracellular matrix compon
Publicado em: 2007