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| Tonacio,A.C.; Trombetta,I.C.; Rondon,M.U.P.B.; Batalha,L.T.; Kuniyoshi,F.H.S.; Laterza,M.C.; Suzuki,P.H.; Gowdak,M.M.G.; Barretto,A.C.P.; Halpern,A.; Villares,S.M.F.; Negrão,C.E.. |
| Since neurovascular control is altered in obese subjects, we hypothesized that weight loss by diet (D) or diet plus exercise training (D + ET) would improve neurovascular control during mental stress in obese women. In a study with a dietary reduction of 600 kcal/day with or without exercise training for 4 months, 53 obese women were subdivided in D (N = 22, 33 ± 1 years, BMI 34 ± 1 kg/m²), D + ET (N = 22, 33 ± 1 years, BMI 33 ± 1 kg/m²), and nonadherent (NA, N = 9, 35 ± 2 years, BMI 33 ± 1 kg/m²) groups. Muscle sympathetic nerve activity (MSNA) was measured by microneurography and forearm blood flow by venous occlusion plethysmography. Mental stress was elicited by a 3-min Stroop color word test. Weight loss was similar between D and D + ET groups (87 ± 2... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Vasodilation; Sympathetic nervous system; Weight loss. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2006000100006 |
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| Azevedo,L.F.; Brum,P.C.; Mattos,K.C.; Junqueira,C.M.; Rondon,M.U.P.B.; Barretto,A.C.P.; Negrao,C.E.. |
| We investigate whether combined treatment with losartan, an angiotensin II receptor blocker, and exercise training (ET) in spontaneously hypertensive rats (SHR) would have an additive effect in reducing hypertension and improving baroreflex sensitivity when compared with losartan alone. Male SHR (8 weeks old) were assigned to 3 groups: sedentary placebo (SP, N = 16), sedentary under losartan treatment (SL, N = 11; 10 mg kg-1 day-1, by gavage), and ET under losartan treatment (TL, N = 10). ET was performed on a treadmill 5 days/week for 60 min at 50% of peak VO2, for 18 weeks. Blood pressure (BP) was measured with a catheter inserted into the carotid artery, and cardiac output with a microprobe placed around the ascending aorta. The baroreflex control of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Spontaneously hypertensive rats; Exercise training; Losartan; Baroreflex sensitivity. |
| Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2003001100018 |
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| Ribeiro,M.M.; Trombetta,I.C.; Batalha,L.T.; Rondon,M.U.P.B.; Forjaz,C.L.M.; Barretto,A.C.P.; Villares,S.M.F.; Negrão,C.E.. |
| To study the relationship between the sympathetic nerve activity and hemodynamic alterations in obesity, we simultaneously measured muscle sympathetic nerve activity (MSNA), blood pressure, and forearm blood flow (FBF) in obese and lean individuals. Fifteen normotensive obese women (BMI = 32.5 ± 0.5 kg/m²) and 11 age-matched normotensive lean women (BMI = 22.7 ± 1.0 kg/m²) were studied. MSNA was evaluated directly from the peroneal nerve by microneurography, FBF was measured by venous occlusion plethysmography, and blood pressure was measured noninvasively by an autonomic blood pressure cuff. MSNA was significantly increased in obese women when compared with lean control women. Forearm vascular resistance and blood pressure were significantly higher in... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Sympathetic nerve activity; Blood pressure; Obesity. |
| Ano: 2001 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2001000400006 |
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