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Exercise pill closer to reality: Study

Researchers from a UK university have found a protein called Piezo1 in the lining of blood vessels that is able to detect a change in blood flow during exercise. During physical activity, as the heart pumps more blood the protein senses the increased pressure on the wall of the blood vessels.

An exercise pill, health benefits, change in blood flow during exercise, controlling blood flow, Indian express, Indian express news Regular exercise can protect one against heart disease,stroke and many other conditions. If a pill is able to activate the same functions then health benefits of exercise can be enhanced. (Source: Thinkstock Images)

An exercise pill — which can induce the health benefits of physical activity — may be closer to reality, as scientists have identified the mechanism that switches on the exercise response in the body.

Researchers from University of Leeds in the UK found that a protein called Piezo1 in the lining of blood vessels is able to detect a change in blood flow during exercise. During physical activity — as the heart pumps more blood around the body — the Piezo1 protein in the endothelium or lining of the arteries taking blood from the heart to the stomach and intestines senses the increased pressure on the wall of the blood vessels.

In response, it slightly alters the electrical balance in the endothelium and this results in the blood vessels constricting, researchers said. In a clever act of plumbing, that narrowing of the blood vessels reduces blood flow to the stomach and intestines,allowing more blood to reach the brain and muscles actively engaged in exercise.

“If we can understand how these systems work, then we maybe able to develop techniques that can help tackle some of the biggest diseases afflicting modern societies,” said David Beech, professor at University of Leeds. “We know that exercise can protect against heart disease,stroke and many other conditions. This study has identified a physiological system that senses when the mammalian body is exercising,” Beech added.

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Researchers also investigated the effect of an experimental compound called Yoda1 — named after the character from Star Wars — on the action of the Piezo1 protein. They found that it mimicked the action of increasing blood flow on the walls of the endothelium which is experienced during physical activity, raising the possibility that a drug could be developed which enhances the health benefits of exercise. “One of our ideas is that Piezo1 has a special role in controlling blood flow to the intestines. This is really an important part of the body when we think about the metabolic syndrome which is associated with cardiovascular disease and type 2 diabetes,” Beech said.

By modifying this protein in the intestines, some of the problems of diabetes may be tackled. Perhaps the Yoda1 compound could target the Piezo1 in the intestinal area to have a functional effect, researchers said. “It may be that by understanding the working of the Yoda1 experimental molecule on the Piezo1 protein, we can move a step closer to having a drug that can help control some major chronic conditions,” they said. The study was published in the journal Nature Communications.

First published on: 27-08-2017 at 06:20:45 pm
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