Key result
Bilateral renal denervation did not restore attenuated cardiac β-adrenergic responsiveness in diabetic hypertensive rats, but reduced hypertension-induced concentric hypertrophic remodelling.
Why the study?
Does bilateral renal denervation improve cardiac β-adrenoceptor responsiveness and reduce hypertrophic remodelling in a diabetic hypertensive rat model?
Population
Transgenic27 rats with or without streptozotocin-induced diabetes and Sprague-Dawley control rats
Comparison
Bilateral renal denervation conducted repeatedly… vs Sham surgeries
Design
Preclinical
Follow-up
Up to 18 weeks of age
Authors
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RDN may reduce hypertrophic remodelling without restoring β-responsiveness; leaves open direct cardiac effects and human translation.
Does bilateral renal denervation improve cardiac β-adrenoceptor responsiveness and reduce hypertrophic remodelling in a diabetic hypertensive rat model?
Bilateral renal denervation reduces hypertension-induced concentric hypertrophic remodelling but does not restore cardiac β-adrenergic responsiveness in a diabetic hypertensive rat model, suggesting its haemodynamic benefits are primarily vascular or renal rather than direct cardiac effects.
Thaung et al. (2015) studied Hypertension and diabetes (n=34). Bilateral renal denervation vs. Sham surgeries was evaluated on Cardiac β-adrenoceptor responsiveness. Bilateral renal denervation did not restore attenuated cardiac β-adrenergic responsiveness in diabetic hypertensive rats, but reduced hypertension-induced concentric hypertrophic remodelling.