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Beneficial Effects of Exercise Training (Treadmill) on Body Mass and Skeletal Muscle Capillaries/Myocyte Ratio in C57BL/6 Mice Fed High-Fat Diet International Journal of Morphology
Motta,Victor Faria; Mandarim de Lacerda,Carlos Alberto.
C57BL/6 mice develop signals and symptoms comparable at least in part with the metabolic syndrome in humans. This study aimed to evaluate the beneficial effects of exercise training upon skeletal microcirculation in these mice. Animals were fed one of two diets during an eight week period: standard chow (SC) or very high-fat (HF). Afterwards, the exercise training protocol (treadmill) was established and mice divided into SC and HF sedentary (SC-Sed, HF-Sed) or exercised groups (SC-Ex, HF-Ex), respectively. HF/HF-Sed mice had the greatest body mass (plus 65% than SC-Sed; P<0.0001), and exercise reduced it by 23% (P<0.0001). The plasma insulin was higher in the HF-Sed than in the matched ­Ex (P<0.001). The ratio between capillaries/myocytes in...
Tipo: Journal article Palavras-chave: Aerobic training; Metabolic syndrome; Lipid profile; Skeletal muscle.
Ano: 2012 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022012000100037
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MORPHOLOGICAL ALTERATIONS IN THE MASSETER MUSCLE INDUCED BY UNILATERAL EXTRACTION OF THE UPPER MOLARS IN GUINEA PIGS (Cavia porcellus) International Journal of Morphology
Mardegan Issa,João Paulo; Mizusaki Iyomasa,Mamie; Ioshie Mizusaki,Cristina; Watanabe,Ii-sei; Mandarim de Lacerda,Carlos Alberto.
The objective of the present study was to analyze morphological aspects of the structures of the stomatognathic system and their relationship with malocclusion. For this purpose, we determined the morphological alterations that occur in the masseter muscle of guinea pigs (Cavia porcellus) after the induction of malocclusion by extraction of the left upper molars. Animals were divided into two groups (malocclusion and control group) and submitted to macroscopic, biometric and light microscopic analyses. The results showed a reduction in the width of the masseter muscle mainly in left side in the malocclusion group 60 days after unilateral extraction. Microscopically, round and polygonal muscle fibers of several diameters were observed, and altered muscle...
Tipo: Journal article Palavras-chave: Masseter muscle; Morphology; Light microscopy; Muscle fibers; Guinea pig.
Ano: 2004 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022004000300009
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