Eating Bananas, Avocados Daily May Prevent Heart Disease
Sumaira FH Published December 02, 2021 | 05:50 AM
ISLAMABAD, (UrduPoint / Pakistan Point News - 2nd Dec, 2021 ) :Eating foods rich in potassium, such as bananas and avocados, daily may prevent hardening of the arteries that can result in heart disease and death, researchers claim.
Researchers at University of Alabama at Birmingham (UAB) in the US have shown, for the first time, that reduced dietary potassium promotes elevated aortic stiffness in a mouse model, as compared with normal-potassium-fed mice, Medical Xpress reported.
Such arterial stiffness in humans is predictive of heart disease and death from heart disease, they said.
Researchers also found that increased dietary potassium levels lessened vascular calcification and aortic stiffness.
They unravelled the molecular mechanism underlying the effects of low or high dietary potassium.
It also provides new targets for potential therapies to prevent or treat atherosclerotic vascular calcification and arterial stiffness.
A team led by Yabing Chen, professor at UAB explored this mechanism of vascular disease three ways: living mice fed diets that varied in potassium, mouse artery cross- sections studied in culture medium with varying concentrations of potassium, and mouse vascular smooth muscle cells grown in culture medium.
The researchers determined a causative link between reduced dietary potassium and vascular calcification in atherosclerosis, as well as uncovered the underlying pathogenic mechanisms.
The animal work was carried out in the atherosclerosis- prone mouse model, the apoliprotein E-deficient mice, a standard model that are prone to cardiovascular disease when fed a high-fat diet.
Using low, normal or high levels of dietary potassium, the team found that the mice fed a low-potassium diet had a significant increase in vascular calcification.
In contrast, the mice fed a high-potassium diet had markedly inhibited vascular calcification.
The low-potassium mice had increased stiffness of their aortas, and high-potassium mice had decreased stiffness, as indicated by the arterial stiffness indicator called pulse wave velocity, which is measured by echocardiography in live animals.
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