|
|
|
|
|
| De Angelis,K.; Gama,V.M.; Farah,V.A.M.; Irigoyen,M.C.. |
| The use of colored microspheres to adequately evaluate blood flow changes under different circumstances in the same rat has been validated with a maximum of three different colors due to methodological limitations. The aim of the present study was to validate the use of four different colors measuring four repeated blood flow changes in the same rat to assess the role of vasopressor systems in controlling arterial pressure (AP). Red (150,000), white (200,000), yellow (150,000), and blue (200,000) colored microspheres were infused into the left ventricle of 6 male Wistar rats 1) at rest and 2) after vasopressin (aAVP, 10 µg/kg, iv), 3) renin-angiotensin (losartan, 10 mg/kg, iv), and 4) sympathetic system blockade (hexamethonium, 20 mg/kg, iv) to determine... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Colored microspheres; Arterial pressure; Sympathetic system; Renin-angiotensin; Vasopressin; Local blood flow measurement. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2005000100018 |
| |
|
| |
|
|
| Shimojo,G.L.; Palma,R.K.; Brito,J.O.; Sanches,I.C.; Irigoyen,M.C.; De Angelis,K.. |
| The aim of this study was to investigate the effects of resistance exercise training on hemodynamics and cardiac autonomic control in ovariectomized spontaneously hypertensive rats. Female rats were divided into 4 groups: sedentary control (SC), sedentary hypertensive (SH), sedentary hypertensive ovariectomized (SHO), and resistance-trained hypertensive ovariectomized (RTHO). Resistance exercise training was performed on a vertical ladder (5 days/week, 8 weeks) at 40-60% maximal load. Direct arterial pressure was recorded. Vagal and sympathetic tones were measured by heart rate (HR) responses to methylatropine (3 mg/kg, iv) and propranolol (4 mg/kg, iv). Ovariectomy resulted in additional increases in blood pressure in hypertensive rats and was associated... |
| Tipo: Info:eu-repo/semantics/report |
Palavras-chave: Resistance exercise training; Menopause; Hypertension; Sympathetic tone; Blood pressure. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2015000600523 |
| |
|
|
| Castro,E.F.S.; Mostarda,C.T.; Rodrigues,B.; Moraes-Silva,I.C.; Feriani,D.J.; De Angelis,K.; Irigoyen,M.C.. |
| The present study aimed to study the effects of exercise training (ET) performed by rats on a 10-week high-fructose diet on metabolic, hemodynamic, and autonomic changes, as well as intraocular pressure (IOP). Male Wistar rats receiving fructose overload in drinking water (100 g/L) were concomitantly trained on a treadmill for 10 weeks (FT group) or kept sedentary (F group), and a control group (C) was kept in normal laboratory conditions. The metabolic evaluation comprised the Lee index, glycemia, and insulin tolerance test (KITT). Arterial pressure (AP) was measured directly, and systolic AP variability was performed to determine peripheral autonomic modulation. ET attenuated impaired metabolic parameters, AP, IOP, and ocular perfusion pressure (OPP)... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fructose; Exercise training; Intraocular pressure; Autonomic modulation. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2015000400332 |
| |
|
|
| Santa-Rosa,F.A.; Shimojo,G.L.; Sartori,M.; Rocha,A.C.; Francica,J.V.; Paiva,J.; Irigoyen,M.C.; De Angelis,K.. |
| Family history of hypertension is an important predictive factor for hypertension and is associated with hemodynamic and autonomic abnormalities. Previous studies reported that strength training might reduce arterial blood pressure (AP), as well as improve heart rate variability (HRV). However, the benefits of strength training in the offspring of hypertensive parents have not been fully evaluated. Here, we analyzed the impact of strength training on hemodynamics and autonomic parameters in offspring of hypertensive subjects. We performed a cross-sectional study with sedentary or physically active offspring of normotensives (S-ON and A-ON) or hypertensives (S-OH and A-OH). We recorded RR interval for analysis of HRV. AP was similar between groups.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Family history; Arterial blood pressure; Cardiac autonomic modulation; Sympathetic modulation; Strength training. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2018001200605 |
| |
|
| |
|
| |
|
| |
|
|
|
