|
Models | Cardiovascular changes |
|
db/db mouse | (i) Increased vascular contractility |
(ii) High blood pressure levels (14-15 weeks of age) |
(iii) Sympathetic denervation (14-15 weeks of age) |
|
KKAy mice | (i) High blood pressure levels |
(ii) Sympathetic alterations |
|
ob/ob mice | (i) Hypotensive with low sympathetic nerve activity |
(ii) Cardiac fibrosis (20 weeks of age) |
(iii) Left ventricular hypertrophy (24 weeks of age) |
(iv) Decreased cardiac function (24 weeks of age) |
|
db/db mice | (i) Vascular endothelial dysfunction |
(ii) No or low blood pressure changes |
(iii) No changes in heart rate variability |
(iv) No changes in spontaneous baroreflex sensitivity |
|
Wistar Ottawa Karlsburg W | (i) Impaired coronary function |
(ii) Increased alpha(1)-adrenoceptor-mediated coronary constriction (3 and 10 months of age) |
(iii) Seriously blunted beta-adrenoceptor-mediated coronary relaxation (16 months of age) |
|
Zucker obese rats | (i) Diastolic dysfunction with preserved ejection fraction (9 weeks of age) |
(ii) High blood pressure levels (12 weeks of age) |
(iii) High resting sympathetic nerve activity |
(iv) Reduced heart rate variability |
|
Zucker Diabetic Fatty | (i) Increased myocardial fatty acid oxidation |
(ii) Reduction of insulin-mediated myocardial glucose utilization (14 weeks of age) |
(iii) Reduction of left ventricular chamber |
|
DahlS.Z-Leprfa/Leprfa | (i) Diastolic dysfunction |
(ii) Marked left ventricle hypertrophy and fibrosis |
(iii) Myocardial oxidative stress |
|
Otsuka Long-Evans Tokushima Fatty | (i) Diastolic dysfunction (15 weeks) |
(ii) No changes in the blood pressure and heart rate |
(iii) Extracellular fibrosis and abundant transforming growth factor-β1 receptor II in the left ventricle |
(iv) Low coronary flow reserve |
(v) Increased coronary vascular resistance |
|
Goto-Kakizaki | (i) Left ventricle remodeling with marked hypertrophy |
(ii) Increased extracellular matrix deposition |
(iii) Mild hypertension |
(iv) Blunted vascular relaxation by acetylcholine and sodium nitroprusside |
|