Morphometry and Histochemistry of the Rectus abdominis Muscle Fibers of Tufted Capuchin Monkeys (Cebus apella Linnaeus, 1758)
The phylogenetic proximity of primates to humans, along with their behavioral, biochemical, and anatomical similarities, make such animals more interesting experimental models for biomedical researches, as compared to classical laboratory animals. Another aspect that has called the attention of rese...
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Sociedad Chilena de Anatomía
2006
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oai:scielo:S0717-950220060001000112006-09-07Morphometry and Histochemistry of the Rectus abdominis Muscle Fibers of Tufted Capuchin Monkeys (Cebus apella Linnaeus, 1758)Simionato,L. H.Andreo,J. C.Oliveira,J. A. deBortoluci,C. H. F.dos Santos,N. B.Moraes,L. H. R.Rodrigues,A. C.Andreo,M. B. Rectus abdominis muscle Histochemistry Musculars fiber types Tufted capuchin monkey Cebus apella Primates Simians The phylogenetic proximity of primates to humans, along with their behavioral, biochemical, and anatomical similarities, make such animals more interesting experimental models for biomedical researches, as compared to classical laboratory animals. Another aspect that has called the attention of researchers is the differentiated quadrupedalism present in some primates. The tufted capuchin monkey uses the ground and tree branches as its support for locomotion, showing various postures while performing this task. On the basis of this information, we have decided to study the rectus abdominis muscle of the tufted capuchin monkey, with the following goals: the frequency and area of fiber types; its possible compartmentalization; and identify if this muscle is better adapted to phasic or postural activities. To do this, samples were removed from 4 regions of the rectus abdominis muscle of 6 adult male tufted capuchin monkeys, and were submitted to reaction with m-ATPase, (with alkaline and acid pre-incubation), NADH, and H.E.. Results showed: a statistically significant difference (P<0.05) for both frequency and area, between fiber types FG and FOG and FG and SO, but did not show a statistically significant difference between fibers FOG and SO, in all studied regions; similarity in frequency and area of a same fiber type (FG, FOG, and SO) among the studied regions. Based on these data, it was concluded that: the rectus abdominis muscle of the tufted capuchin monkey does not show fiber compartmentalization, since the distribution and size patterns of the different fiber types are similar in the studied regions; there is a predominance of fast twitch fibers (FG + FOG) over slow twitch fibers (SO), for frequency and area, which characterizes the muscle as being more dedicated to phasic than to postural activitiesinfo:eu-repo/semantics/openAccessSociedad Chilena de AnatomíaInternational Journal of Morphology v.24 n.1 20062006-03-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022006000100011en10.4067/S0717-95022006000100011 |
| institution |
Scielo Chile |
| collection |
Scielo Chile |
| language |
English |
| topic |
Rectus abdominis muscle Histochemistry Musculars fiber types Tufted capuchin monkey Cebus apella Primates Simians |
| spellingShingle |
Rectus abdominis muscle Histochemistry Musculars fiber types Tufted capuchin monkey Cebus apella Primates Simians Simionato,L. H. Andreo,J. C. Oliveira,J. A. de Bortoluci,C. H. F. dos Santos,N. B. Moraes,L. H. R. Rodrigues,A. C. Andreo,M. B. Morphometry and Histochemistry of the Rectus abdominis Muscle Fibers of Tufted Capuchin Monkeys (Cebus apella Linnaeus, 1758) |
| description |
The phylogenetic proximity of primates to humans, along with their behavioral, biochemical, and anatomical similarities, make such animals more interesting experimental models for biomedical researches, as compared to classical laboratory animals. Another aspect that has called the attention of researchers is the differentiated quadrupedalism present in some primates. The tufted capuchin monkey uses the ground and tree branches as its support for locomotion, showing various postures while performing this task. On the basis of this information, we have decided to study the rectus abdominis muscle of the tufted capuchin monkey, with the following goals: the frequency and area of fiber types; its possible compartmentalization; and identify if this muscle is better adapted to phasic or postural activities. To do this, samples were removed from 4 regions of the rectus abdominis muscle of 6 adult male tufted capuchin monkeys, and were submitted to reaction with m-ATPase, (with alkaline and acid pre-incubation), NADH, and H.E.. Results showed: a statistically significant difference (P<0.05) for both frequency and area, between fiber types FG and FOG and FG and SO, but did not show a statistically significant difference between fibers FOG and SO, in all studied regions; similarity in frequency and area of a same fiber type (FG, FOG, and SO) among the studied regions. Based on these data, it was concluded that: the rectus abdominis muscle of the tufted capuchin monkey does not show fiber compartmentalization, since the distribution and size patterns of the different fiber types are similar in the studied regions; there is a predominance of fast twitch fibers (FG + FOG) over slow twitch fibers (SO), for frequency and area, which characterizes the muscle as being more dedicated to phasic than to postural activities |
| author |
Simionato,L. H. Andreo,J. C. Oliveira,J. A. de Bortoluci,C. H. F. dos Santos,N. B. Moraes,L. H. R. Rodrigues,A. C. Andreo,M. B. |
| author_facet |
Simionato,L. H. Andreo,J. C. Oliveira,J. A. de Bortoluci,C. H. F. dos Santos,N. B. Moraes,L. H. R. Rodrigues,A. C. Andreo,M. B. |
| author_sort |
Simionato,L. H. |
| title |
Morphometry and Histochemistry of the Rectus abdominis Muscle Fibers of Tufted Capuchin Monkeys (Cebus apella Linnaeus, 1758) |
| title_short |
Morphometry and Histochemistry of the Rectus abdominis Muscle Fibers of Tufted Capuchin Monkeys (Cebus apella Linnaeus, 1758) |
| title_full |
Morphometry and Histochemistry of the Rectus abdominis Muscle Fibers of Tufted Capuchin Monkeys (Cebus apella Linnaeus, 1758) |
| title_fullStr |
Morphometry and Histochemistry of the Rectus abdominis Muscle Fibers of Tufted Capuchin Monkeys (Cebus apella Linnaeus, 1758) |
| title_full_unstemmed |
Morphometry and Histochemistry of the Rectus abdominis Muscle Fibers of Tufted Capuchin Monkeys (Cebus apella Linnaeus, 1758) |
| title_sort |
morphometry and histochemistry of the rectus abdominis muscle fibers of tufted capuchin monkeys (cebus apella linnaeus, 1758) |
| publisher |
Sociedad Chilena de Anatomía |
| publishDate |
2006 |
| url |
http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022006000100011 |
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