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dc.contributor.author
De Brito Monzani, Janaina O.
dc.contributor.author
Sanches, Iris Callado
dc.contributor.author
Bernardes, Nathalia
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Ponciano, Kátia
dc.contributor.author
Moraes Silva, Ivana C.
dc.contributor.author
Irigoyen, Maria Cláudia
dc.contributor.author
Llesuy, Susana Francisca
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dc.contributor.author
De Angelis, Kátia
dc.date.available
2023-12-26T10:16:35Z
dc.date.issued
2017-11-02
dc.identifier.citation
De Brito Monzani, Janaina O.; Sanches, Iris Callado; Bernardes, Nathalia; Ponciano, Kátia; Moraes Silva, Ivana C.; et al.; Hypertension induces additional cardiometabolic impairments and attenuates aerobic exercise training adaptations in fructose-fed ovariectomized rats; Nature Publishing Group; Hypertension Research; 41; 2; 2-11-2017; 88-95
dc.identifier.issn
0916-9636
dc.identifier.uri
http://hdl.handle.net/11336/221297
dc.description.abstract
We tested whether hypertension favors the development of additional cardiometabolic changes in fructose-fed ovariectomized rats and how it affects aerobic exercise training (ET) effects. All rats received fructose in drinking water (10%) beginning at weaning, were ovariectomized at 10 weeks of age and divided into the normotensive sedentary (NFOS) and trained (NFOT) and hypertensive sedentary (HFOS) and trained (HFOT) groups. ET was performed on a treadmill. Arterial pressure (AP) was directly recorded; heart rate and AP variabilities were analyzed. Lipoperoxidation (LPO) and antioxidant enzyme levels were measured in the left ventricle. In addition to increased AP levels, when compared with the NFOS group, the hypertensive groups had resting tachycardia, a reduction of 29% in the pulse interval variance (VAR-PI), 19% in RMSSD (root mean square of successive differences, a cardiac parasympathetic index) and 53% in the α-index (spontaneous baroreflex), while the systolic AP variance (VAR-SAP) and its low-frequency band (LF-SAP) were sharply increased. ET did not alter AP levels. Even in the presence of hypertension, ET induced resting bradycardia, decreases of 33% in VAR-SAP and 49% in LF-SAP, and an increase of more than 60% in VAR-PI and the α-index. However, some of these parameters were still impaired relative to those of normotensive rats. LPO was reduced and catalase was increased in both trained groups, with no difference between the normotensive and hypertensive groups. Negative correlations were obtained between LPO and RMSSD (r=-0.60, P<0.05) and α-index (r=-0.63, P<0.05). In conclusion, hypertension augmented the dysfunctions in fructose-fed ovariectomized rats and attenuated metabolic aerobic ET benefits. These changes may be related to cardiovascular autonomic and oxidative stress alterations.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Nature Publishing Group
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
AUTONOMIC NERVOUS SYSTEM
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EXERCISE TRAINING
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MENOPAUSE
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METABOLIC SYNDROME
dc.subject.classification
Bioquímica y Biología Molecular
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dc.subject.classification
Ciencias Biológicas
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Hypertension induces additional cardiometabolic impairments and attenuates aerobic exercise training adaptations in fructose-fed ovariectomized rats
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2023-12-18T11:57:55Z
dc.journal.volume
41
dc.journal.number
2
dc.journal.pagination
88-95
dc.journal.pais
Reino Unido
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dc.journal.ciudad
Londres
dc.description.fil
Fil: De Brito Monzani, Janaina O.. Universidade Federal do Maranhao; Brasil
dc.description.fil
Fil: Sanches, Iris Callado. Universidade São Judas Tadeu ; Brasil
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Fil: Bernardes, Nathalia. Universidade Nove de Julho; Brasil
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Fil: Ponciano, Kátia. Universidade São Judas Tadeu ; Brasil
dc.description.fil
Fil: Moraes Silva, Ivana C.. Universidade de Sao Paulo; Brasil
dc.description.fil
Fil: Irigoyen, Maria Cláudia. Universidade de Sao Paulo; Brasil
dc.description.fil
Fil: Llesuy, Susana Francisca. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Departamento de Química Analítica y Fisicoquímica. Cátedra de Química General e Inorgánica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Bioquímica y Medicina Molecular. Universidad de Buenos Aires. Facultad Medicina. Instituto de Bioquímica y Medicina Molecular; Argentina
dc.description.fil
Fil: De Angelis, Kátia. Universidade Nove de Julho; Brasil
dc.journal.title
Hypertension Research
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1038/hr.2017.94
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.nature.com/articles/hr201794
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