Researchers discovered a new substance formed in omega-3 fatty acids that may treat and prevent atherosclerosis and other cardiovascular diseases.
A receptor activated by substances formed from omega-3 fatty acids plays a vital role in preventing inflammation in blood vessels and reducing atherosclerosis, according to a new study published in The Journal of Clinical Investigation reports. Cardiovascular disease is the most common cause of death globally and a serious public health problem. Atherosclerosis is associated with chronic inflammation in the blood vessels.
‘Omega-3 fatty acids prevent atherosclerosis not only by arresting inflammation in the blood vessels but also by turning on the body’s healing processes.’
Inflammation is normally controlled by stop signals called resolvins, which switch off the inflammation and stimulate tissue healing and repair through a process called resolution of inflammation. Resolvins are formed from omega-3 fatty acids and bind to and activate a receptor called GPR32.“We’ve found that this receptor is dysregulated in atherosclerosis, indicating a disruption in the body’s natural healing processes,” says the study’s first author Hildur Arnardottir, assistant professor at the Department of Medicine, Solna, Karolinska Institutet.
The new study shows that signaling via the receptor actively stops inflammation in atherosclerotic blood vessels and stimulates healing.
The researchers have studied atherosclerotic plaque and created a new experimental model with an over-expressed GPR32 receptor. The GPR32 receptor counteracted atherosclerosis and inflammation in the blood vessels, and resolvins that activate GPR32 enhanced the effect.
In the future, researchers will be studying the mechanisms behind the failed management of inflammation in the blood vessels and how omega-3 mediated stop signals can be used to treat atherosclerosis.
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