Objective: To determine whether the development of arterial hypertension due to occlusion of the central adrenal vein in the rat is strain-dependent
Design And Methods: The experiments were performed on male rats weighing 300-400 g each, of the following strains: Wistar outbred, Wistar Glaxo, Lewis, Wistar-Kyoto (WKY) rats bred for high blood pressure (138 +/- 13.2 mmHg), WKY rats bred without the control of blood pressure (118 +/- 12.9 mmHg) and borderline hypertensive rats (BHR). BHR were the F1 spontaneously hypertensive rat and WKY rat crossbred rats. In order to increase blood flow through the adrenal-renal portal circulation, both central adrenal veins of rats in the experimental group were occluded. The systolic blood pressure was measured indirectly by a photoelectric method.
Results: By the ninth day after surgery systolic blood pressure had increased significantly only in the WKY rats bred for high blood pressure and BHR, reaching maximal values on 12th day for WKY rats bred for high blood pressure (167 +/- 5 mmHg) and on the 18th day for BHR (170 +/- 14 mmHg).
Conclusions: These data show that the development of arterial hypertension due to augmentation of adrenal blood flow through adrenal-renal portal circulation occurs in rats of strains with a genetic background of hypertension.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1097/00004872-199816090-00004 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Cardiomeds, an mHealth App for Self-Management to Support Swiss Patients With Heart Failure: 2-Stage Mixed Methods Usability Study.
JMIR Form Res
January 2025
Department of Computer Science, University Hospital of Geneva, Geneva, Switzerland.
Background: Mobile health apps have shown promising results in improving self-management of several chronic diseases in patients. We have developed a mobile health app (Cardiomeds) dedicated to patients with heart failure (HF). This app includes an interactive medication list; daily self-monitoring of symptoms, weight, blood pressure, and heart rate; and educational information on HF delivered through various formats.
View Article and Find Full Text PDFCerebrovascular Compliance during Progressive Hypotension in Patients with Autonomic Failure.
J Appl Physiol (1985)
January 2025
School of Kinesiology, Western University, London, Ontario, Canada.
The compliant nature of cerebral blood vessels may represent an important mechanical protection for sustained cerebral perfusion during reductions in arterial blood pressure (ABP). However, whether the rise in cerebrovascular compliance (Ci) with falling ABP persists and exhibits a threshold effect remains unknown. Therefore, we analyzed Ci changes during graded head-up tilt (HUT) in individuals with autonomic failure (AF), a group that tolerates graded and progressive reductions in ABP.
View Article and Find Full Text PDFGuidance for Prescribing Oral Antihypertensive Medications in the Emergency Department.
Curr Hypertens Rep
January 2025
Department of Emergency Medicine, Integrative Biosciences Center, Wayne State University, Detroit, MI, USA.
Purpose Of Review: To review the most current recommendations regarding assessment and treatment of asymptomatic hypertension treatment in the emergency department (ED) and to provide guidance for prescribing oral antihypertensive therapy for ED providers.
Recent Findings: There are varying management strategies for the treatment of asymptomatic hypertension in the ED likely due to a lack of direct guidelines for treatment. There is an increasing body of evidence for the safety of initiating therapy to treat chronic asymptomatic hypertension in the ED.
Closing the Gap: Digital Innovations to Address Hypertension Disparities.
Curr Cardiol Rep
January 2025
Section of Cardiovascular Medicine, Yale School of Medicine, New Haven, CT, USA.
Purpose Of Review: Significant inequities persist in hypertension detection and control, with minoritized populations disproportionately experiencing organ damage and premature death due to uncontrolled hypertension. Remote blood pressure monitoring combined with telehealth visits (RBPM) is proving to be an effective strategy for controlling hypertension. Yet there are challenges related to technology adoption, patient engagement and social determinants of health (SDoH), contributing to disparities in patient outcomes.
View Article and Find Full Text PDFTime-restricted feeding reduces cardiovascular disease risk in obese mice.
JCI Insight
January 2025
Division of Nephrology, The University of Alabama at Birmingham, Birmingham, United States of America.
Disrupted feeding and fasting cycles as well as chronic high fat diet (HFD)-induced obesity are associated with cardiovascular disease risk factors. We designed studies that determined whether two weeks of time-restricted feeding (TRF) intervention in mice fed a chronic HFD would reduce cardiovascular disease risk factors. Mice were fed a normal diet (ND; 10% fat) ad libitum or HFD (45% fat) for 18 weeks ad libitum to establish diet-induced obesity.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!