By Kyle J. Norton
Coffee intake daily and regularly may have a potential effect in improved insulin resistance, thus reducing the risk of early onset of diabetes, a university study proposed.
Insulin resistance is a condition characterized by a lowered level of insulin response to the level of glucose (sugar) in the body.
Coffee, becoming a popular and social beverage all over the world, particularly in the West, is a drink made from roasted beans from the Coffea plant, native to tropical Africa and Madagascar.
In a study of the effect of coffee against insulin resistance of Male C57BL/6N mice (N = 48) divided into six dietary groups: chow diet, HFD, HFD-supplemented with 0.1%, 0.3%, and 0.9% decaffeinated green coffee bean extract, researchers found that treatment of the minimum dose 0.3%. of green coffee bean extract showed a most significant effect in improved insulin levels caused by HFD- diet.
Furthermore, decaffeinated green coffee bean extract in the study also expressed reverse fat accumulation and insulin resistance caused by the HFD diet by downregulating the genes involved in adipogenesis and inflammation in fat tissues involved in insulin resistance.
Other, in the testing of bioactive substances in coffee in the expression of acutely and/or chronically increase insulin secretion from β-cells and improvement of insulin sensitivity in skeletal muscle cells, measurement of insulin secretion after Insulin secretion at acute (1-h) and long-term (72-h) incubation, the bioactive substances from coffee exerted the following results
1. A bioactive compound isolated from coffee at 10(-8) and 10(-6) M acutely increased insulin secretion by 12% and 16% respectively.
2. Long-term exposure to cafestol at 10(-10) and 10(-8) M increased insulin secretion by 34% and 68%,
respectively.
3. Caffeic acid, another compound isolated from coffee also increased insulin secretion acutely and chronically.
4. Compounds showed no association with insulin secretion, including Chlorogenic acid, trigonelline, oxokahweol, and secoisolariciresinol.
In support of the above analysis, the antidiabetic effects of coffee and caffeine on high-fat-diet-induced impaired glucose tolerance in C57BL/6J mice. C57BL/6J mice fed a high-fat diet given regular drinking water (control group), or a 2.5-fold-diluted coffee or caffeine solution (200 mg/L) for 17 weeks. indicated that the group treated with an injection of coffee caffeine strongly improve glucose tolerance, insulin sensitivity, and hyperinsulinemia compared with mice in the control group.
And coffee and caffeine exerted an ameliorative effect on high-fat-diet-induced impaired glucose tolerance through reduced inflammatory expression in genes and cytokines in improving insulin sensitivity.
Taking together, coffee may have the potential capability in reducing the risk of Insulin Resistance and early onset of diabetes through attenuated insulin resistance by bioactive compounds such as cafestol and caffeic acid.
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Author Biography
Kyle J. Norton, Master of Nutrition
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 the international journal Pharma and Bio Science, ISSN 0975-6299.
Sources
(1) Decaffeinated green coffee bean extract attenuates diet-induced obesity and insulin resistance in mice by Song SJ1, Choi S1, Park T1.(PubMed)
(2) Cafestol, a Bioactive Substance in Coffee, Stimulates Insulin Secretion and Increases Glucose Uptake in Muscle Cells: Studies in Vitro by Mellbye FB1, Jeppesen PB1, Hermansen K1, Gregersen S1.(PubMed)
(3) Coffee and caffeine improve insulin sensitivity and glucose tolerance in C57BL/6J mice fed a high-fat diet by Matsuda Y1, Kobayashi M, Yamauchi R, Ojika M, Hiramitsu M, Inoue T, Katagiri T, Murai A, Horio F.(PubMed)
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