Hypoglycemia is abnormally high blood glucose levels in the bloodstream in diabetes.
With an aim to find a natural ingredient for the prevention of hyperglycemia in patients with diabetes, researchers examined the effect of Cucurbitacin B (CuB) isolated from cucumber induced hypoglycemic effect in an animal model.
On mice, induced diabetes, administration of Cucurbitacin B (CuB) composed of triterpenoid structure stimulated AMP-activated protein kinase (AMPK) pathway which has been found to contribute to the correction of insulin resistance overexpression in hyperglycemia.
CuB also ameliorated hyperglycemia not only by activating intestinal AMPK levels and also by inducing production of plasma GLP-1 associated with the improvement of insulin-releasing by pancreatic β-cells.
However, GLP-1 mimetic medicines although exerted a similar effect compared to that of natural GLP-1, it induced clinical side effects, such as autoimmune hepatitis, acute kidney injury, pancreatitis, and pancreatic cancer.
Interestingly, the efficacy of hypoglycemic activity of CuB decreased significantly in dorsomorphin- (a selective inhibitor of the BMP pathway involved in the expression of cytokines) injected mice and α-gustducin null mice.
In differentiated NCI-H716 cell line, CuB inhibited hyperglycemia involved in activation of AMPK through α-gustducin and Gβγ-signaling of taste receptors in signaling secretion of incretin hormones such as glucagon-like peptide-1 (GLP-1).
Where taste receptors are found in several organs including tongue to colon and have the diverse functions dependent on specific cell type.
In enteroendocrine L cells, stimulated taste receptor signaling plays a critical role in inducing incretin hormones, including GLP-1.
Based on the findings, researchers said, "CuB represents novel hypoglycemic agents by activation of AMPK and stimulation of GLP-1 in differentiated enteroendocrine L-cells".
Taken altogether, cucumber processed high levels of CuB may be used for the treatment of hyperglycemia in diabetics, pending to the confirmation of the larger sample size and multicenter human study.
Intake of CuB in the form of supplement should be taken with extreme care to prevent overdose acute liver toxicity.
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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.,.
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Some articles have been used as references in medical research, such as international journal Pharma and Bioscience, ISSN 0975-6299.
(1) Cucurbitacin B Induces Hypoglycemic Effect in Diabetic Mice by Regulation of AMP-Activated Protein Kinase Alpha and Glucagon-Like Peptide-1 via Bitter Taste Receptor Signaling by Kim KH1,2, Lee IS1,2, Park JY1,2, Kim Y1,2, An EJ1,2, Jang HJ. (PubMed)
(2) Improved Plasma Glucose Control, Whole-Body Glucose Utilization, and Lipid Profile on a Low-Glycemic Index Diet in Type 2 Diabetic Men by