Artículos de revistas
Muscle growth in Nile tilapia (Oreochromis niloticus): histochemical, ultrastructural and morphometric study
Registration in:
Tissue & Cell. Churchill Livingstone, v. 35, n. 3, n. 179, n. 187, 2003.
0040-8166
WOS:000183683000003
10.1016/S0040-8166(03)00019-3
Author
Dal Pai-Silva, M
Carvalho, RF
Pellizzon, CH
Dal Pai, V
Institutions
Abstract
Muscle growth in Nile tilapia (Oreochromis niloticus) was studied focusing on histochemical, ultrastructural, and morphometric characteristics of muscle fibers. Based on body length (cm), we studied four groups: G1 = 1.36+/-0.09, G2 = 3.38+/-0.44, G3 = 8.90+/-1.47, and G4 = 28.30+/-3.29 (mean+/-S.D.). All groups showed intense reaction to NADH-TR in subdermal fibers and weak or no reaction in deep layer fibers. In G3 and G4, an intermediate layer was also observed with fibers presenting weak reaction; in G4, groups of fibers with intense reaction were observed in the subdermal region. The myosin ATPase (m-ATPase) activities were acid-stable and alkali-labile in subdermal fibers; most deep layer fibers were alkali-stable and acid-labile. Intermediate fibers were acid-labile and alkali-stable. Two fiber populations were observed near deep muscle layer: one large presenting weak acid- and alkali-stable and the other small alkali-stable. During growth, muscle fiber hypertrophy was more evident in intermediate and white fibers for G3 and G4. However, in these groups, the presence of fiber diameters less than or equal to21 mum suggested that there is still substantial fiber recruitment, confirmed by ultrastructural study, but hypertrophy is the main mechanism contributing to increase in muscular mass. (C) 2003 Elsevier Science Ltd. All rights reserved. 35 3 179 187
Related items
Showing items related by title, author, creator and subject.
-
Relationship between Skin Temperature, Electrical Manifestations of Muscle Fatigue, and Exercise-Induced Delayed Onset Muscle Soreness for Dynamic Contractions : A Preliminary Study
Priego Quesada, J. I.; De la Fuente, Carlos; Kunzler, M. R.; Pérez Soriano, P.; Hervás Marín, D.; Carpes, Felipe P. (2020) -
Andrographolide attenuates skeletal muscle dystrophy in mdx mice and increases efficiency of cell therapy by reducing fibrosis
Cabrera, Daniel; Gutierrez, Jaime; Cabello-Verrugio, Claudio; Gabriela Morales, Maria; Mezzano, Sergio; Fadic, Ricardo; Carlos Casar, Juan; Hancke, Juan L.; Brandan, Enrique -
Glypican-1 regulates myoblast response to hgf via met in a lipid raft-dependent mechanism: effect on migration of skeletal muscle precursor cells
Gutierrez, Jaime; Cabrera, Daniel; Brandan, Enrique