Key result
Increases in blood pressure and heart rate in response to central Na+ and ouabain were attenuated by 50% to 70% in transgenic rats deficient in brain angiotensinogen compared to control rats.
Why the study?
Does brain angiotensinogen deficiency attenuate blood pressure and heart rate responses to central sodium and ouabain in rats?
Does brain angiotensinogen deficiency attenuate blood pressure and heart rate responses to central sodium and ouabain in rats?
The local brain renin-angiotensin system plays a critical role in mediating the sympathoexcitatory and pressor effects of central sodium and ouabain.
No takes yet. Share an insight, caveat, or question.
Hypothesis-generating for brain RAS in central sodium effects; leaves open translation to human hypertension.
Huang et al. (2001) studied Hypertension. Intracerebroventricular infusion of Na+-rich artificial cerebrospinal fluid and injection of ouabain vs. Sprague-Dawley rats (control animals) was evaluated on Blood pressure and heart rate responses. Increases in blood pressure and heart rate in response to central Na+ and ouabain were attenuated by 50% to 70% in transgenic rats deficient in brain angiotensinogen compared to control rats.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: