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Registro Completo |
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Biblioteca(s): |
Embrapa Meio Ambiente. |
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Data corrente: |
23/02/2016 |
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Data da última atualização: |
24/02/2016 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
BARBOSA, E. H.; VALLIM, J. H.; LACHAT, J. J.; CASTRO, V. L. S. S. de. |
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Afiliação: |
EVERTON HORIQUINI BARBOSA, FFCLRP-USP; JOSE HENRIQUE VALLIM, CNPMA; JOAO JOSE LACHAT, FFCLRP-USP; VERA LUCIA SCHERHOLZ S DE CASTRO, CNPMA. |
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Título: |
Assessments of motor abnormalities on the grid-walking and foot-fault tests from undernutrition in wistar rats. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
Journal of Motor Behavior, Washington, v. 48, n. 1, p. 5-12, 2016. |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: This study was designed to verify whether different lactation conditions influenced nervous system development. The authors used motor tasks to verify changes in exploratory activity and muscle strength of weaned rats from different litter sizes and evaluated the applicability of the grid-walking test for assessing motor abnormalities caused by undernutrition. Alterations in litter size during the suckling period perturbed the nutritional status of pups, which exhibited body weight differences between the groups. Large-litter (L) pups showed significant delays in achieving developmental milestones and neurological reflexes compared to the small-litter (S) and medium-litter (M) pups. The S, M, and L group pups exhibited similar exploratory responses and muscle strength. In the grid-walking and foot-fault tests, the L group pups traveled shorter distances and, consequently, had less footsteps. However, the percentages of foot faults in the L group were higher than S and M groups. These results reflect delayed maturation of structures responsible for sensorimotor responses, such as the cerebellum, because much cerebellar maturation takes place postnatally. This is the first study to report that early undernutrition in pups resulted in suboptimal performances on the grid-walking and foot-fault tests and that the former test was sensitive to alterations caused by nutritional deficiency. |
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Palavras-Chave: |
Developmental milestones; Early undernutrition; Footfault test; Grid-walking test; Neurological reflexes; Reflexos neurológicos; Sistema motor. |
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Thesagro: |
Deficiência nutricional; Lactação; Rato. |
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Thesaurus Nal: |
Malnutrition; Motor development; Neurophysiology; Reflexes. |
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Categoria do assunto: |
H Saúde e Patologia |
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Marc: |
LEADER 02397naa a2200325 a 4500
001 2038335
005 2016-02-24
008 2016 bl uuuu u00u1 u #d
100 1 $aBARBOSA, E. H.
245 $aAssessments of motor abnormalities on the grid-walking and foot-fault tests from undernutrition in wistar rats.$h[electronic resource]
260 $c2016
520 $aAbstract: This study was designed to verify whether different lactation conditions influenced nervous system development. The authors used motor tasks to verify changes in exploratory activity and muscle strength of weaned rats from different litter sizes and evaluated the applicability of the grid-walking test for assessing motor abnormalities caused by undernutrition. Alterations in litter size during the suckling period perturbed the nutritional status of pups, which exhibited body weight differences between the groups. Large-litter (L) pups showed significant delays in achieving developmental milestones and neurological reflexes compared to the small-litter (S) and medium-litter (M) pups. The S, M, and L group pups exhibited similar exploratory responses and muscle strength. In the grid-walking and foot-fault tests, the L group pups traveled shorter distances and, consequently, had less footsteps. However, the percentages of foot faults in the L group were higher than S and M groups. These results reflect delayed maturation of structures responsible for sensorimotor responses, such as the cerebellum, because much cerebellar maturation takes place postnatally. This is the first study to report that early undernutrition in pups resulted in suboptimal performances on the grid-walking and foot-fault tests and that the former test was sensitive to alterations caused by nutritional deficiency.
650 $aMalnutrition
650 $aMotor development
650 $aNeurophysiology
650 $aReflexes
650 $aDeficiência nutricional
650 $aLactação
650 $aRato
653 $aDevelopmental milestones
653 $aEarly undernutrition
653 $aFootfault test
653 $aGrid-walking test
653 $aNeurological reflexes
653 $aReflexos neurológicos
653 $aSistema motor
700 1 $aVALLIM, J. H.
700 1 $aLACHAT, J. J.
700 1 $aCASTRO, V. L. S. S. de
773 $tJournal of Motor Behavior, Washington$gv. 48, n. 1, p. 5-12, 2016.
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Registro original: |
Embrapa Meio Ambiente (CNPMA) |
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