Gamma-Linolenic Acid, The Potential Anti-Atherosclerotic Lesions in Vivo

Atherosclerosis is a medical condition caused by plaques accumulated on the wall of the arteries, leading to narrowing the arteries in transporting oxygenated blood to the heart and other parts of the body.

Depending on the blood obstruction, atherosclerosis can induce different types of heart disease and stroke.

Plaque is the make of cholesterols, calcium, and other toxic substances, including cadmium.

Atherosclerosis is a slow, progressive disease that may begin as early as childhood, caused by damage to the inner lining of the artery. However, the actual causes of the condition are debatable.

Some researchers suggested that atherosclerosis may be caused by long term high blood pressure,
high cholesterol and triglycerides (a type of fat) in the blood. Particularly, in high levels of insulin in the blood from diabetes and in exposure to chemicals from smoking tobacco.

Patients with early stages of atherosclerosis may not experience any symptoms. However, as the disease progress, patients may have the symptoms of chest pain if the blockage occurs in an artery of the heart (coronary artery) and leg cramps during exercise or walking if the blockage occurs in the legs.

According to the statistics provided by Atherosclerosis Open Acess, 32% of deaths account for atherosclerosis. 13.8% prevalence is among adults of 20 years and above. In 2010, coronary heart disease mortality rate was about 60%.

Risk factors of atherosclerosis include high blood pressure and cholesterol, diabetes, being overweight or obese, an unhealthy diet, a family history of heart disease and physical inactivity, particularly smoking.

Some researchers suggested that since cholesterol makes up a big part in the plaque, an unhealthy diet with high saturated trans fat, red meat and processed meat may be the major cause of atherosclerosis.


Gamma-linolenic acid is a phytochemical in the group of Omega-3, 6,9 fatty acids, belongings to the class of Lipids, found abundantly in evening primrose, borage, blackcurrant, etc.


On finding a potential plant for the prevention and treatment of atherosclerosis, researchers examined the effect of the effects of D5D inhibition by a D5D inhibitor on atherosclerosis.

Where Delta-5 desaturase (D5D), encoded by fatty acid desaturase 1 (Fads1), is the rate-limiting enzyme for the conversion from dihomo-γ-linolenic acid (DGLA) to arachidonic acid (AA) in the ω-6 polyunsaturated fatty acid pathway.


According to the results of the analysis of the Western-diet fed ApoE knockout (KO) mice,
* Oral administration of compound-326 (3-10 mg/kg per day for 15 weeks) significantly inhibited the progression of atherosclerotic lesions in the aorta without affecting plasma total cholesterol and triglyceride levels.

* Compound-326 significantly decreased AA levels, while it increased DGLA levels in the liver and the blood accompanied by decreases in AA-derived eicosanoid production and increases in DGLA-derived eicosanoid production from the blood cells.

In other words, the compound-326 prevents the progression of atherosclerosis in Western-diet fed ApoE KO mice by modulating a profile of eicosanoid production.

Collectively, researchers said, "D5D inhibitors can be a novel remedy for preventing atherosclerosis and subsequent cardiovascular events".

Taken altogether, Gamma-linolenic Acid may be considered a remedy for the prevention and treatment of atherosclerotic lesions,, pending to the confirmation of the larger sample size and multicenter human study.


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Author Biography
Kyle J. Norton (Scholar, Master of Nutrition, All right reserved)
Health article writer and researcher; Over 10.000 articles and research papers have been written and published online, including worldwide health, ezine articles, article base, health blogs, self-growth, best before it's news, the karate GB daily, etc.,.
Named TOP 50 MEDICAL ESSAYS FOR ARTISTS & AUTHORS TO READ by Disilgold.com Named 50 of the best health Tweeters Canada - Huffington Post
Nominated for shorty award over last 4 years
Some articles have been used as references in medical research, such as international journal Pharma and Bioscience, ISSN 0975-6299.

Sources
(1) A Novel Orally Available Delta-5 Desaturase Inhibitor Prevents Atherosclerotic Lesions Accompanied by Changes in Fatty Acid Composition and Eicosanoid Production in ApoE Knockout Mice by Takagahara S1, Shinohara H2, Itokawa S2, Satomi Y2, Ando A2, Yamamoto T2, Suzuki H2, Fujimoto T2, Kubo K2, Ikeda S. (PubMed)