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Updated: Jul 11, 2026

A Rat Model of Pressure Overload Induced Moderate Remodeling and Systolic Dysfunction as Opposed to Overt Systolic Heart Failure
Published on: April 30, 2020
[Abnormal patterns of diurnal blood pressure variation and cardiovascular remodeling in elderly hypertensive
1Division of Cardiology, Faculty of Medicine, Tokyo Metropolitan Geriatric Hospital, Tokyo, Japan.
Insights
Brain natriuretic peptide (BNP) may indicate organ damage in elderly hypertension patients. Nocturnal blood pressure significantly impacts left ventricular hypertrophy, particularly in men, while women show accelerated cardiac remodeling with aging.
Area of Science:
- Cardiovascular Medicine
- Gerontology
- Hypertension Research
Context:
- Aging and hypertension are significant risk factors for cardiovascular disease.
- Elderly hypertensive patients exhibit left ventricular hypertrophy and increased arterial stiffness.
- Understanding sex-differences in cardiovascular remodeling is crucial for effective management.
Purpose:
- To investigate cardiovascular remodeling in elderly hypertensive patients.
- To analyze the influence of aging and sex on hypertension-related cardiovascular changes.
- To explore the relationship between blood pressure, cardiac biomarkers, and vascular stiffness.
Summary:
- Left ventricular mass index (LVMI) and pulse wave velocity (PWV) correlated with nocturnal blood pressures, which also correlated with brain natriuretic peptide (BNP) levels.
- Nocturnal blood pressure, rather than aging itself, was a key determinant of left ventricular hypertrophy.
- Cardiac remodeling (LVMI) and vascular remodeling (PWV) progressed with aging but appeared relatively independent of each other.
Impact:
- BNP may serve as a surrogate endpoint for target organ damage in elderly hypertensive individuals.
- Accelerated left ventricular hypertrophy in aging women, potentially linked to higher post-menopausal systolic blood pressure, may contribute to greater mortality.
- Findings highlight the importance of nocturnal blood pressure monitoring and sex-specific considerations in managing hypertension in the elderly.
Abstract:
Hypertension causes left ventricular hypertrophy and increases in large artery stiffness with ageing, both of which are cardiovascular risks. We studied cardiovascular remodeling in elderly hypertensive patients by measuring blood brain natriuretic peptide (BNP), left ventricular mass indices (LVMI), pulse wave velocities (PWV), and ambulatory blood pressures. We focused on ageing and sex-differences. Both LVMI and PWV correlated significantly with nocturnal blood pressures, which in turn correlated with BNP levels. Thus, BNP might be a candidate for a surrogate endpoint of target organ damage in elderly cases of hypertension. Left ventricular hypertrophy progressed with ageing more in women. Systolic blood pressures in women were shown to rise abruptly after menopause and to surpass those in men. However, more non-dippers were observed in men, suggesting that the absolute value of nocturnal blood pressure is a determinant of left ventricular hypertrophy. PWV accelerated with ageing, but it did not correlate with LVMI, suggesting that progression of cardiac remodeling with ageing was relatively independent of vascular remodeling. Finally, the greater mortality in elderly women might be associated with progressive left ventricular hypertrophy.
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