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| Natura: | Artículo científico |
| Lingua: | en |
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Universidade Estadual de Maringá
2014
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| Accesso online: | https://www.redalyc.org/articulo.oa?id=187132092012 |
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| _version_ | 1866812025776111616 |
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| author | Bruna da Rosa Maggi Sant’Helena |
| author_facet | Bruna da Rosa Maggi Sant’Helena |
| contents | Blood pressure, heart rate and its autonomic modulation in malnourished rats at different ages Bruna da Rosa Maggi Sant’Helena Maria do Socorro Brasileiro-Santos Elis Pereira Falcão Denia Palmeira Fittipaldi Duarte Nicodemos Teles de Pontes Filho Carlos Peres da Costa Biología aging multi Keywords deficient diet spectral analysis Malnutrition is responsible for a number of alterations that occur in the organism, including alterations in the cardio vascular system. We hypothesize th at long periods of malnutrition occurring after weaning may also be responsible for alterations in the ca rdiovascular system. Wistar rats were separated into the two following experimental groups: a labina ® diet-fed control group (CG) and a malnourished group (MG), fed a multi-deficient diet. Results showed that the mg presented significantly lower body weight (p < 0.001) in rats of all ages, higher heart rate (HR) (p < 0.05) when rats were 3, 4 and 5 months old and lower HR in rats from 6 to 9 months of age, in relation to the CG. Spectral analysis showed a significant increase in the low frequencies (LF) components in the MG compared to the CG from the third month onwards (p < 0.05), showing evid ence of sympathetic predominance greater cardiac autonomic balance in the MG versus that of CG in dicated that, although aging influences autonomic behavior, it may also be altered by nutrition. Morphologically, an increase in the ventricle weight/body weight ratio was seen in the MG. These results show th at the hearts of rats in the MG were not spared from malnutrition age-related detrimental cardiac effects associated with malnutrition. 2014 artículo científico 1679-9283 https://www.redalyc.org/articulo.oa?id=187132092012 en http://www.redalyc.org/revista.oa?id=1871 Acta Scientiarum. Biological Sciences application/pdf Universidade Estadual de Maringá Acta Scientiarum. Biological Sciences (Brasil) Num.4 Vol.36 |
| format | Artículo científico |
| id | redalyc_187132092012 |
| language | en |
| publishDate | 2014 |
| publisher | Universidade Estadual de Maringá |
| spellingShingle | Blood pressure, heart rate and its autonomic modulation in malnourished rats at different ages Bruna da Rosa Maggi Sant’Helena Biología aging multi Keywords deficient diet spectral analysis Blood pressure, heart rate and its autonomic modulation in malnourished rats at different ages Bruna da Rosa Maggi Sant’Helena Maria do Socorro Brasileiro-Santos Elis Pereira Falcão Denia Palmeira Fittipaldi Duarte Nicodemos Teles de Pontes Filho Carlos Peres da Costa Biología aging multi Keywords deficient diet spectral analysis Malnutrition is responsible for a number of alterations that occur in the organism, including alterations in the cardio vascular system. We hypothesize th at long periods of malnutrition occurring after weaning may also be responsible for alterations in the ca rdiovascular system. Wistar rats were separated into the two following experimental groups: a labina ® diet-fed control group (CG) and a malnourished group (MG), fed a multi-deficient diet. Results showed that the mg presented significantly lower body weight (p < 0.001) in rats of all ages, higher heart rate (HR) (p < 0.05) when rats were 3, 4 and 5 months old and lower HR in rats from 6 to 9 months of age, in relation to the CG. Spectral analysis showed a significant increase in the low frequencies (LF) components in the MG compared to the CG from the third month onwards (p < 0.05), showing evid ence of sympathetic predominance greater cardiac autonomic balance in the MG versus that of CG in dicated that, although aging influences autonomic behavior, it may also be altered by nutrition. Morphologically, an increase in the ventricle weight/body weight ratio was seen in the MG. These results show th at the hearts of rats in the MG were not spared from malnutrition age-related detrimental cardiac effects associated with malnutrition. 2014 artículo científico 1679-9283 https://www.redalyc.org/articulo.oa?id=187132092012 en http://www.redalyc.org/revista.oa?id=1871 Acta Scientiarum. Biological Sciences application/pdf Universidade Estadual de Maringá Acta Scientiarum. Biological Sciences (Brasil) Num.4 Vol.36 |
| title | Blood pressure, heart rate and its autonomic modulation in malnourished rats at different ages |
| topic | Biología aging multi Keywords deficient diet spectral analysis |
| url | https://www.redalyc.org/articulo.oa?id=187132092012 |