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Is Aberrant Reno-Renal Reflex Control of Blood Pressure a Contributor to Chronic Intermittent Hypoxia-Induced Hypertension?
This study demonstrated unaltered vascular conductance in response to lumbar sympathetic stimulation in CIH-exposed rats. Aortic compliance was increased and estimated blood volume was unchanged in CIH-exposed rats. Increased blood pressure was related to an increase in cardiac output, which was confirmed by echocardiography (Lucking et al., 2014). It is suggested therefore that hypertension in the CIH model can be evoked by over-excitation of the cardiac arm of sympathetic nervous system (SNS), even before mechanisms of enhanced peripheral vasoconstriction and endothelial dysfunction are initiated (Naghshin et al., 2009)....
Source: Frontiers in Physiology - April 23, 2019 Category: Physiology Source Type: research

Perindopril increases the swallowing reflex by inhibiting substance P degradation and tyrosine hydroxylase activation in a rat model of dysphagia.
Abstract Patients with hypertension have a high risk of ischemic stroke and subsequent stroke-associated pneumonia. Stroke-associated pneumonia is most likely to develop in patients with dysphagia. The present study was designed to compare the ameliorative effects of different treatments in rat model of dysphagia. Spontaneously hypertensive rats were treated with bilateral common carotid artery occlusion (BCAO) to induce chronic cerebral hypoperfusion causing disorders of the swallowing reflex. Angiotensin-converting enzyme (ACE) inhibitors (perindopril, imidapril and enalapril), an angiotensin II type 1-receptor ...
Source: European Journal of Pharmacology - November 12, 2014 Category: Drugs & Pharmacology Authors: Ikeda JI, Kojima N, Saeki K, Ishihara M, Takayama M Tags: Eur J Pharmacol Source Type: research