Logo Medical Science Monitor

Call: +1.631.470.9640
Mon - Fri 10:00 am - 02:00 pm EST

Contact Us

Logo Medical Science Monitor Logo Medical Science Monitor Logo Medical Science Monitor

Effect of renin-angiotensin system activation by dietary sodium restriction and upright position on plasma leptin concentration in patients with essential hypertension

Marcin Adamczak, Franciszek Kokot, Jerzy Chudek, Andrzej Więcek

Med Sci Monit 2002; 8(7): CR473-477 :: ID: 510694


Background: Both leptin and the renin-angiotensin system (RAS) are involved in the regulation of arterial blood pressure. This study was undertaken to assess the relationship between RAS and plasma leptin concentration in hypertensive patients under conditions of normal and restricted sodium supply and upright position.
Material/Methods: In 31 patients with essential hypertension (EHP – 14 F, 17 M, age 44±14 years, BMI 29.3±6.4 kg/m2) and 8 healthy subjects (NHS - 4 F, 4 M, age 37(17 years, BMI 25.3±6.6 kg/m2) plasma leptin concentration, plasma renin activity (PRA), and 24-hour urinary sodium excretion (UNa) were evaluated twice: first on a diet containing 100–120 mmol sodium per day and after 8 hours overnight bed rest, and a second time after 3 days of dietary sodium restriction (10–20 mmol daily) and 3 hours in upright position.
Results: Dietary sodium restriction and upright position was followed by a significant increase in PRA and decrease of UNa. By contrast, plasma leptin concentration showed a moderate decrease both in EHP and NHS. No significant correlation was found between PRA and plasma leptin concentrations in either of the groups examined.
Conclusion: From the results obtained in this study we may conclude that dietary sodium restriction and upright position exerts only a moderate effect on plasma leptin concentration, in contrast to PRA, in both hypertensive and normotensive subjects.

Keywords: essential hypertension, plasma renin activity, dietary sodium, Leptin

Add Comment 0 Comments

460 8


01 June 2023 : Editorial  

Editorial: Infectious Disease Surveillance Using Artificial Intelligence (AI) and its Role in Epidemic and Pandemic Preparedness

Dinah V. Parums
Science Editor, Medical Science Monitor, International Scientific Information, Inc., Melville, NY, USA

DOI: 10.12659/MSM.941209

Med Sci Monit 2023; 29:e941209


In Press

08 Jun 2023 : Clinical Research  

Risk Factors for New Vertebral Compression Fracture After Percutaneous Vertebral Augmentation: A Retrospect...

Med Sci Monit In Press; DOI: 10.12659/MSM.940134  

08 Jun 2023 : Clinical Research  

A Nomogram for Identifying HR+/Her2- Breast Cancer Patients with Positive Sentinel Lymph Nodes and Omitted ...

Med Sci Monit In Press; DOI: 10.12659/MSM.940124  

08 Jun 2023 : Clinical Research  

Burden of COVID-19 on Mental Health of Resident Doctors in Poland

Med Sci Monit In Press; DOI: 10.12659/MSM.940208  

08 Jun 2023 : Clinical Research  

Risk Prediction for Rapidly Progressive Interstitial Lung Disease in Anti-MDA5-Positive Dermatomyositis: Th...

Med Sci Monit In Press; DOI: 10.12659/MSM.940251  

Most Viewed Current Articles

13 Nov 2021 : Clinical Research  

Acceptance of COVID-19 Vaccination and Its Associated Factors Among Cancer Patients Attending the Oncology ...

DOI :10.12659/MSM.932788

Med Sci Monit 2021; 27:e932788


30 Dec 2021 : Clinical Research  

Retrospective Study of Outcomes and Hospitalization Rates of Patients in Italy with a Confirmed Diagnosis o...

DOI :10.12659/MSM.935379

Med Sci Monit 2021; 27:e935379

08 Mar 2022 : Review article  

A Review of the Potential Roles of Antioxidant and Anti-Inflammatory Pharmacological Approaches for the Man...

DOI :10.12659/MSM.936292

Med Sci Monit 2022; 28:e936292

01 Jan 2022 : Editorial  

Editorial: Current Status of Oral Antiviral Drug Treatments for SARS-CoV-2 Infection in Non-Hospitalized Pa...

DOI :10.12659/MSM.935952

Med Sci Monit 2022; 28:e935952

Your Privacy

We use cookies to ensure the functionality of our website, to personalize content and advertising, to provide social media features, and to analyze our traffic. If you allow us to do so, we also inform our social media, advertising and analysis partners about your use of our website, You can decise for yourself which categories you you want to deny or allow. Please note that based on your settings not all functionalities of the site are available. View our privacy policy.

Medical Science Monitor eISSN: 1643-3750
Medical Science Monitor eISSN: 1643-3750