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Matti Narkia

Artemisinin - Wikipedia, the free encyclopedia - 0 views

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    Artemisinin (pronounced /ɑːtə'misinən/) is a drug used to treat multi-drug resistant strains of falciparum malaria. The compound (a sesquiterpene lactone) is isolated from the plant Artemisia annua. Not all plants of this species contain artemisinin. Apparently it is only produced when the plant is subjected to certain conditions, most likely biotic or abiotic stress. It can be synthesized from artemisinic acid.[1] The drug is derived from a herb used in Chinese traditional medicine, though it is usually chemically modified and combined with other medications.

    Artemisinin is under early research and testing for treatment of cancer, primarily by researchers at the University of Washington.[7][8] Artemisinin has a peroxide lactone group in its structure. It is thought that when the peroxide comes into contact with high iron concentrations (common in cancerous cells), the molecule becomes unstable and releases reactive oxygen species. It has been shown to reduce angiogenesis and the expression of vascular endothelial growth factor in some tissue cultures.
Matti Narkia

Powerful Advances in Natural Cancer Prevention - Life Extension - 0 views

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    Scientists have known that cruciferous vegetables contain a host of chemopreventive agents that act in many different ways to block cancer development.2 Key among these products are indole-3-carbinol (I3C) and sulforaphane.1,3

    Cancer cells need a brisk blood supply to support their rampant growth and reproduction. Preliminary studies in vitro and in vivo have found that apigenin inhibits blood vessel growth (angiogenesis) in human ovarian cancer cells, blocking production of two main signaling molecules required to stimulate vessel growth.20,21 Scientists confirmed this effect in ovarian cancer cells, also finding that apigenin strongly inhibits cell proliferation.22
    Apigenin and BITC: Complementary Cancer Protection

    Cancer cells also need energy to support their frenetic reproductive activity. Researchers applied apigenin to human pancreatic cancer cells in culture and studied the cells' uptake of glucose.14 Astonishingly, they found that apigenin deprived energy-hungry cancer cells of glucose to support their voracious appetites and aggressive growth. It did this by down-regulating vital glucose-transporting proteins in cancer cells. This approach could effectively starve deadly cancer cells and stop them in their tracks.

    Another cruciferous vegetable component receiving rave reviews is the sulfur-containing molecule benzyl isothiocyanate, or BITC (pronounced "bitsy"). As with apigenin, population studies have shown that higher intakes of BITC correlate with reduced risk of cancers of the lung, breast, and colon30 while blocking cancer development in a host of different ways.

    BITC induces breast cancer cell death by apoptosis (programmed cell death), interfering with cancer cells' energy utilization and causing them to die off before they can contribute to tumor growth.31,32 In human ovarian cancer cells, BITC induces apoptosis by a different mechanism. It stimulates "signaling" molecules that tell cancer cells it's time to close up shop.
Matti Narkia

The effect of omega-3 FAs on tumour angiogenesis and their therapeutic potential - 0 views

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    The effect of omega-3 FAs on tumour angiogenesis and their therapeutic potential.
    Spencer L, Mann C, Metcalfe M, Webb M, Pollard C, Spencer D, Berry D, Steward W, Dennison A.
    Eur J Cancer. 2009 Aug;45(12):2077-86. Epub 2009 Jun 1. Review.
    PMID: 19493674

    Omega-3 fatty acid (omega-3 FA) consumption has long been associated with a lower incidence of colon, breast and prostate cancers in many human populations. Human trials have demonstrated omega-3 FA to have profound anti-inflammatory effects in those with cancer. In vitro and small animal studies have yielded a strong body of evidence establishing omega-3 FA as having anti-inflammatory, anti-apoptotic, anti-proliferative and anti-angiogenic effects. This review explores the evidence and the mechanisms by which omega-3 FA may act as angiogenesis inhibitors and identifies opportunities for original research trialling omega-3 FAs as anti-cancer agents in humans. The conclusions drawn from this review suggest that omega-3 FAs in particular eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) found principally in oily fish have potent anti-angiogenic effects inhibiting production of many important angiogenic mediators namely; Vascular Endothelial Growth Factor (VEGF), Platelet-Derived Growth Factor (PDGF), Platelet-Derived Endothelial Cell Growth Factor (PDECGF), cyclo-oxygenase 2 (COX-2), prostaglandin-E2 (PGE2), nitric oxide, Nuclear Factor Kappa Beta (NFKB), matrix metalloproteinases and beta-catenin
Matti Narkia

Ginger inhibits cell growth and modulates angiogenic factors in ovarian cancer cells - ... - 0 views

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    Ginger inhibits cell growth and modulates angiogenic factors in ovarian cancer cells.
    Rhode J, Fogoros S, Zick S, Wahl H, Griffith KA, Huang J, Liu JR.
    BMC Complement Altern Med. 2007 Dec 20;7:44.
    PMID: 18096028
    doi:10.1186/1472-6882-7-44
Matti Narkia

Lipoxin A4: anti-inflammatory and anti-angiogenic impact on endothelial cells. - J Immu... - 0 views

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    Lipoxin A4: anti-inflammatory and anti-angiogenic impact on endothelial cells.
    Baker N, O'Meara SJ, Scannell M, Maderna P, Godson C.
    J Immunol. 2009 Mar 15;182(6):3819-26.
    PMID: 19265161
    doi:10.4049/jimmunol.0803175
Matti Narkia

Ginkgo biloba extract EGb(R)761 exerts anti-angiogenic effects via activation of tyrosi... - 0 views

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    Ginkgo biloba extract EGb(R)761 exerts anti-angiogenic effects via activation of tyrosine phosphatases.
    Koltermann A, Liebl J, Fürst R, Ammer H, Vollmar AM, Zahler S.
    J Cell Mol Med. 2008 Oct 23. [Epub ahead of print]
    PMID: 19175691
Matti Narkia

Copper Control as an Antiangiogenic Anticancer Therapy: Lessons from Treating Wilson's ... - 0 views

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    Copper Control as an Antiangiogenic Anticancer Therapy: Lessons from Treating Wilson's Disease -- Brewer 226 (7): 665 -- Experimental Biology and Medicine
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