Effects of Passive Smoking Associated with Physical Exercise in the Skeletal Muscles of Rats During Pregnancy and Lactation

The objective of this study was to analyze the effects of passive smoking, in soleus and gastrocnemius muscles associated with physical exercise by swimming during pregnancy and lactation of rats. Twenty-four rats were divided: GF (exposed to cigarette smoke), GC (control), GFN (underwent to the swi...

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Autores principales:	Valsoni,Bruna Corral Garcia, Bonfim,Mariana Rotta, Camargo,Regina Celi Trindade, Abreu,Luiz Carlos de, Souza,Dorotéia Rossi Silva, Camargo Filho,José Carlos Silva
Lenguaje:	English
Publicado:	Sociedad Chilena de Anatomía 2015
Materias:	Passive Smoking Physical Exercise Pregnancy Lactation Skeletal Muscle
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022015000200015
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spelling	oai:scielo:S0717-950220150002000152015-08-13Effects of Passive Smoking Associated with Physical Exercise in the Skeletal Muscles of Rats During Pregnancy and LactationValsoni,Bruna Corral GarciaBonfim,Mariana RottaCamargo,Regina Celi TrindadeAbreu,Luiz Carlos deSouza,Dorotéia Rossi SilvaCamargo Filho,José Carlos Silva Passive Smoking Physical Exercise Pregnancy Lactation Skeletal Muscle The objective of this study was to analyze the effects of passive smoking, in soleus and gastrocnemius muscles associated with physical exercise by swimming during pregnancy and lactation of rats. Twenty-four rats were divided: GF (exposed to cigarette smoke), GC (control), GFN (underwent to the swimming program and exposed to cigarette smoke) and GN (underwent to the swimming program). On the first day of pregnancy procedure of exposure to cigarette smoke began, consisting in 30 minutes twice a day for six weeks. During the same period the swimming program began, which lasted 60 min every day untilthe 21st day of lactation. Soleus and gastrocnemius muscles, were obtained for histological, histochemical, morphometric analysis and fiber profiling. In histology, the groups GF and GFN showed infiltrations, necrotic and phagocytized fibers, centralized nuclei, splittings and coiling; in GN changes were observed due to exercise adaptations, infiltrations, sarcolemal lesion, polymorphic, atrophic and angular fibers. In the histochemical analysis of the groups GF and GFN there was enzymatic activity and amorphous formazan aggregates in subsarcolemmal positions, however in GN the same changes were found in lower frequency and intensity. In regard to the measureof the cross-sectionofmuscle fibers there weren't significant differences among the groups, as well as, in the frequency of types of fibers of the gastrocnemius. It is concluded that aerobic exercise is not enough to impede morphological and histochemical changes caused in an animal model of pregnant and lactating associated with smoking, and the stress not influence the types and size of muscle fibers.info:eu-repo/semantics/openAccessSociedad Chilena de AnatomíaInternational Journal of Morphology v.33 n.2 20152015-06-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022015000200015en10.4067/S0717-95022015000200015
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Passive Smoking Physical Exercise Pregnancy Lactation Skeletal Muscle
spellingShingle	Passive Smoking Physical Exercise Pregnancy Lactation Skeletal Muscle Valsoni,Bruna Corral Garcia Bonfim,Mariana Rotta Camargo,Regina Celi Trindade Abreu,Luiz Carlos de Souza,Dorotéia Rossi Silva Camargo Filho,José Carlos Silva Effects of Passive Smoking Associated with Physical Exercise in the Skeletal Muscles of Rats During Pregnancy and Lactation
description	The objective of this study was to analyze the effects of passive smoking, in soleus and gastrocnemius muscles associated with physical exercise by swimming during pregnancy and lactation of rats. Twenty-four rats were divided: GF (exposed to cigarette smoke), GC (control), GFN (underwent to the swimming program and exposed to cigarette smoke) and GN (underwent to the swimming program). On the first day of pregnancy procedure of exposure to cigarette smoke began, consisting in 30 minutes twice a day for six weeks. During the same period the swimming program began, which lasted 60 min every day untilthe 21st day of lactation. Soleus and gastrocnemius muscles, were obtained for histological, histochemical, morphometric analysis and fiber profiling. In histology, the groups GF and GFN showed infiltrations, necrotic and phagocytized fibers, centralized nuclei, splittings and coiling; in GN changes were observed due to exercise adaptations, infiltrations, sarcolemal lesion, polymorphic, atrophic and angular fibers. In the histochemical analysis of the groups GF and GFN there was enzymatic activity and amorphous formazan aggregates in subsarcolemmal positions, however in GN the same changes were found in lower frequency and intensity. In regard to the measureof the cross-sectionofmuscle fibers there weren't significant differences among the groups, as well as, in the frequency of types of fibers of the gastrocnemius. It is concluded that aerobic exercise is not enough to impede morphological and histochemical changes caused in an animal model of pregnant and lactating associated with smoking, and the stress not influence the types and size of muscle fibers.
author	Valsoni,Bruna Corral Garcia Bonfim,Mariana Rotta Camargo,Regina Celi Trindade Abreu,Luiz Carlos de Souza,Dorotéia Rossi Silva Camargo Filho,José Carlos Silva
author_facet	Valsoni,Bruna Corral Garcia Bonfim,Mariana Rotta Camargo,Regina Celi Trindade Abreu,Luiz Carlos de Souza,Dorotéia Rossi Silva Camargo Filho,José Carlos Silva
author_sort	Valsoni,Bruna Corral Garcia
title	Effects of Passive Smoking Associated with Physical Exercise in the Skeletal Muscles of Rats During Pregnancy and Lactation
title_short	Effects of Passive Smoking Associated with Physical Exercise in the Skeletal Muscles of Rats During Pregnancy and Lactation
title_full	Effects of Passive Smoking Associated with Physical Exercise in the Skeletal Muscles of Rats During Pregnancy and Lactation
title_fullStr	Effects of Passive Smoking Associated with Physical Exercise in the Skeletal Muscles of Rats During Pregnancy and Lactation
title_full_unstemmed	Effects of Passive Smoking Associated with Physical Exercise in the Skeletal Muscles of Rats During Pregnancy and Lactation
title_sort	effects of passive smoking associated with physical exercise in the skeletal muscles of rats during pregnancy and lactation
publisher	Sociedad Chilena de Anatomía
publishDate	2015
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022015000200015
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Effects of Passive Smoking Associated with Physical Exercise in the Skeletal Muscles of Rats During Pregnancy and Lactation

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