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Matti Narkia

Berberine suppresses in vitro migration and invasion of human SCC-4 tongue sq... - 0 views

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    Berberine suppresses in vitro migration and invasion of human SCC-4 tongue squamous cancer cells through the inhibitions of FAK, IKK, NF-kappaB, u-PA and MMP-2 and -9. Ho YT, Yang JS, Li TC, Lin JJ, Lin JG, Lai KC, Ma CY, Wood WG, Chung JG. Cancer Lett. 2009 Jul 8;279(2):155-62. Epub 2009 Feb 28. PMID: 19251361 doi:10.1016/j.canlet.2009.01.033 There is increasing evidence that urokinase-type plasminogen activator (u-PA) and matrix metalloproteinases (MMPs) play an important role in cancer metastasis and angiogenesis. Inhibition of u-PA and MMPs could suppress migration and invasion of cancer cells. Berberine, one of the main constituents of the plant Rhizoma coptidis, is a type of isoquinoline alkaloid, reported to have anti-cancer effects in different human cancer cell lines. There is however, no available information on effects of berberine on migration and invasion of human tongue cancer cells. Here, we report that berberine inhibited migration and invasion of human SCC-4 tongue squamous carcinoma cells. This action was mediated by the p-JNK, p-ERK, p-p38, IκK and NF-κB signaling pathways resulting in inhibition of MMP-2 and -9 in human SCC-4 tongue squamous carcinoma cells. Our Western blowing analysis also showed that berberine inhibited the levels of urokinase-plasminogen activator (u-PA). These results suggest that berberine down-regulates u-PA, MMP-2 and -9 expressions in SCC-4 cells through the FAK, IKK and NF-κB mediated pathways and a novel function of berberine is to inhibit the invasive capacity of malignant cells.
Matti Narkia

Omega-3 fatty acids enter plaque, resulting in increased stability and less inflammatio... - 0 views

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    "June 21, 2006 | Michael O'Riordan Rome, Italy - One of the possible ways in which long-chain omega-3 fatty acids play a role in decreasing cardiovascular events is by entering advanced atherosclerotic plaques. According to the results of a new study, investigators were able to show that the incorporation of eicosapentaenoic acid (EPA) into advanced plaque was associated with a decreased expression of various matrix metalloproteinases (MMPs) involved in causing plaque instability, as well as with decreased plaque inflammation. These are results of the Omacor Carotid Endarterectomy Intervention (OCEAN) study, presented here this week at the International Symposium on Atherosclerosis by Dr Philip Calder (University of Southampton, UK). "By increasing the availability of omega-3 fatty acids, they appear in advanced atherosclerotic plaques, indicated in this study by the carotid artery, and this results in lower numbers of macrophages, foam cells, and T cells, as well as the lower expression of inflammatory markers," said Calder. "Histologically, this results in a plaque that appears to be less inflamed and more stable. This may contribute to reduced mortality in patients consuming omega-3 fatty acids, for example, in the GISSI Prevenzione trial.""
Matti Narkia

Omega-3 fatty acid supplementation decreases matrix metalloproteinase-9 production in r... - 0 views

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    Omega-3 fatty acid supplementation decreases matrix metalloproteinase-9 production in relapsing-remitting multiple sclerosis(,). Shinto L, Marracci G, Baldauf-Wagner S, Strehlow A, Yadav V, Stuber L, Bourdette D. Prostaglandins Leukot Essent Fatty Acids. 2009 Feb-Mar;80(2-3):131-6. Epub 2009 Jan 25. PMID: 19171471 doi:10.1016/j.plefa.2008.12.001
Matti Narkia

Docosahexaenoic acid induces proteasome-dependent degradation of {beta}-catenin, down-r... - 0 views

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    The present study, thus, raises the possibility that DHA may exert pro-apoptotic and antitumoral effects through proteasomal regulation of beta-catenin levels and alterations in the expression of TCF-beta-catenin target genes. Docosahexaenoic acid induces proteasome-dependent degradation of beta-catenin, down-regulation of survivin and apoptosis in human colorectal cancer cells not expressing COX-2. Calviello G, Resci F, Serini S, Piccioni E, Toesca A, Boninsegna A, Monego G, Ranelletti FO, Palozza P. Carcinogenesis. 2007 Jun;28(6):1202-9. Epub 2006 Dec 20. PMID: 17183061 doi:10.1093/carcin/bgl254
Matti Narkia

Vitamin D and Vitamin K Team Up to Lower CVD Risk - Part I - 0 views

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    Strong correlations have been noted between cardiovascular diseases and low bone density / osteoporosis-connections so strong that the presence of one type of pathology is considered a likely predictor of the other. This potentially causal relationship has led to the hypothesis that these conditions share core mechanisms. Recent advances in our understanding of the complimentary roles played by vitamin D3 and vitamin K2 in vascular and bone health provide support for this hypothesis, along with insight into key metabolic dysfunctions underlying cardiovascular disease and osteoporosis. Part I of this review summarizes current research linking vitamin D deficiency to cardiovascular disease, the physiological mechanisms underlying vitamin D's cardiovascular effects, and leading vitamin D researchers' recommendations for significantly higher supplemental doses of the pro-hormone. Part II reviews the vitamin K connection to cardiovascular disease; the ways in which vitamin D and vitamin K pair up to prevent inflammation, vascular calcification and osteoporosis; and the necessity of providing vitamin K along with vitamin D to preclude adverse effects associated with hypervitaminosis D, which include vascular and other soft tissue calcification.
Matti Narkia

Ursolic acid - Wikipedia, the free encyclopedia - 0 views

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    Ursolic acid is a pentacyclic triterpene acid, used in cosmetics,[2] that is also capable of inhibiting various types of cancer cells by inhibiting the STAT3 activation pathway[3][4] and human fibrosarcoma cells by reducing the expression of matrix metalloproteinase-9 by acting through the glucocorticoid receptor. Ursolic acid is present in many plants, including apples, basil, bilberries, cranberries, elder flower, peppermint, rosemary, lavender, oregano, thyme, hawthorn, prunes. Apple peels contain high quantity of ursolic acid and related compounds which are responsible for the anti-cancer activity of apple. Ursolic acid can also serve as a starting material for synthesis of more potent bioactive derivatives, such as anti-tumor agents
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