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Matti Narkia

MedWire News - Prostate Cancer - No link between steroid hormones and prostate cancer G... - 0 views

  • “Whether this discrepancy was simply a results of different populations of men in these studies or, more likely, the absence of a consistent biologic relationship, our results suggest that steroid hormones are not a powerful driver of higher grade disease.”
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    MedWire News: Among patients with newly diagnosed prostate cancer, there is no link between circulating steroid hormone levels and Gleason score, conclude US investigators.
Matti Narkia

A multicountry ecologic study of risk and risk reduction factors for prostate cancer mo... - 0 views

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    A multicountry ecologic study of risk and risk reduction factors for prostate cancer mortality. Grant WB. Eur Urol. 2004 Mar;45(3):271-9. PMID: 15036670 CONCLUSIONS: These results are consistent with insulin-like growth factor-I (IGF-I), being an important risk factor for prostate cancer, with alcohol and calcium being less important risk factors, and with allium family vegetables, and, to a lesser extent, vitamin D being important risk reduction factors. These results should provide guidance for additional studies on dietary and environmental links to prostate cancer.
Matti Narkia

Carbohydrate restriction may slow prostate tumor growth - eurekalert.org - 0 views

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    DURHAM, N.C. -- Restricting carbohydrates, regardless of weight loss, appears to slow the growth of prostate tumors, according to an animal study being published this week by researchers in the Duke Prostate Center. "Previous work here and elsewhere has shown that a diet light in carbohydrates could slow tumor growth, but the animals in those studies also lost weight, and because we know that weight loss can restrict the amount of energy feeding tumors, we weren't able to tell just how big an impact the pure carbohydrate restriction was having, until now," said Stephen Freedland, M.D., a urologist in the Duke Prostate Center and lead investigator on this study. The researchers believe that insulin and insulin-like growth factor contribute to the growth and proliferation of prostate cancer, and that a diet devoid of carbohydrates lowers serum insulin levels in the bodies of the mice, thereby slowing tumor growth, Freedland said.
Matti Narkia

Flaxseed Halts Prostate Cancer Growth New Study Shows - 0 views

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    A new US study suggests that flaxseed, which is rich in omega 3 fatty acids and lignans, can stop prostate cancer tumours from growing.\n\nThe study was presented at the 43rd annual meeting of the American Society of Clinical Oncology (ASCO) in Chicago on
Matti Narkia

A phase I and pharmacokinetic study of silybin-phytosome in prostate cancer patients. -... - 0 views

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    Flaig TW, Gustafson DL, Su LJ, Zirrolli JA, Crighton F, Harrison GS, Pierson AS, Agarwal R, Glode LM. A phase I and pharmacokinetic study of silybin-phytosome in prostate cancer patients. Invest New Drugs. 2007 Apr;25(2):139-46. Epub 2006 Nov 1. PMID
Matti Narkia

Vitamin D may inhibit prostate cancer growth - mechanism reported - 0 views

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    The in vitro study, reported in the journal Carcinogenesis (Vol. 27, pp. 32-42), showed that vitamin D, in the form of the highly active 1alpha, 25-dihydroxyvitamin D3 (1,25-VD), inhibited the function of protease enzymes that are involved in tumour invasion. "We found that 1,25-VD decreased matric metalloproteinases (MMP-9) and cathepsins (CPs), while it [also] increased the activity of their counterparts, tissue inhibitors of metalloproteinase-1 (TIMP-1) and cathepsin inhibitors," wrote lead author Bo-Ying Bao from the University of Rochester and Taipei Medical University. "Mechanistic studies showed that 1,25-VD did not suppress MMP-9 expression at the transcriptional level, but reduced its mRNA stability," said Bao.
Matti Narkia

Phase II study of pomegranate juice for men with rising prostate-specific antigen follo... - 0 views

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    Phase II study of pomegranate juice for men with rising prostate-specific antigen following surgery or radiation for prostate cancer. Pantuck AJ, Leppert JT, Zomorodian N, Aronson W, Hong J, Barnard RJ, Seeram N, Liker H, Wang H, Elashoff R, Heber D, Aviram M, Ignarro L, Belldegrun A. Clin Cancer Res. 2006 Jul 1;12(13):4018-26. PMID: 16818701
Matti Narkia

PLoS Medicine - A Prospective Study of Plasma Vitamin D Metabolites, Vitamin D Receptor... - 0 views

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    Li H, Stampfer MJ, Hollis JBW, Mucci LA, Gaziano JM, et al. (2007) A Prospective Study of Plasma Vitamin D Metabolites, Vitamin D Receptor Polymorphisms, and Prostate Cancer. PLoS Med 4(3): e103 doi:10.1371/journal.pmed.0040103
Matti Narkia

A 22-y prospective study of fish intake in relation to prostate cancer incidence and mo... - 0 views

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    A 22-y prospective study of fish intake in relation to prostate cancer incidence and mortality. Chavarro JE, Stampfer MJ, Hall MN, Sesso HD, Ma J. Am J Clin Nutr. 2008 Nov;88(5):1297-303. PMID: 18996866 Conclusion: These results suggest that fish intake is unrelated to prostate cancer incidence but may improve prostate cancer survival.
Matti Narkia

Pilot study: potential role of vitamin D (Cholecalciferol) in patients with PSA relapse... - 0 views

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    Pilot study: potential role of vitamin D (Cholecalciferol) in patients with PSA relapse after definitive therapy. Woo TC, Choo R, Jamieson M, Chander S, Vieth R. Nutr Cancer. 2005;51(1):32-6. PMID: 15749627
Matti Narkia

Folic Acid Supplements Linked To Higher Risk Of Prostate Cancer, Study Shows - 0 views

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    ScienceDaily (Mar. 10, 2009) - A study led by researchers at the University of Southern California (USC) found that men who took a daily folic acid supplement of 1 mg daily had more than twice the risk of prostate cancer compared with men who took a placebo.
Matti Narkia

MedWire News - Oncology - Serum 25(OH)D levels linked to prostate cancer prognosis - 0 views

  • The researchers conclude: “This study shows a strong association between 25(OH)D levels and cause-specific mortality in patients with prostate cancer. The strength of the association indicates that prostate cancer patients can benefit from increasing the level of serum 25(OH)D if it is below 50 nmol/l.”
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    MedWire News: Serum levels of 25-hydroxy vitamin D (25(OH)D) play a role in prostate cancer disease progression and are a potential prognostic indicator, Norwegian study findings suggest.
Matti Narkia

Modulation of prostate cancer genetic risk by omega-3 and omega-6 fatty acids - Journal... - 0 views

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    Modulation of prostate cancer genetic risk by omega-3 and omega-6 fatty acids. Berquin IM, Min Y, Wu R, Wu J, Perry D, Cline JM, Thomas MJ, Thornburg T, Kulik G, Smith A, Edwards IJ, D'Agostino R, Zhang H, Wu H, Kang JX, Chen YQ. J Clin Invest. 2007 Jul;117(7):1866-75. PMID: 17607361 Our data suggest that modulation of prostate cancer development by polyunsaturated fatty acids is mediated in part through Bad-dependent apoptosis. This study highlights the importance of gene-diet interactions in prostate cancer.
Matti Narkia

Berberine, a natural product, induces G1-phase cell cycle arrest and caspase-3-dependen... - 0 views

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    Berberine, a natural product, induces G1-phase cell cycle arrest and caspase-3-dependent apoptosis in human prostate carcinoma cells. Mantena SK, Sharma SD, Katiyar SK. Mol Cancer Ther. 2006 Feb;5(2):296-308. PMID: 16505103 doi: 10.1158/1535-7163.MCT-05-0448 The effectiveness of berberine in checking the growth of androgen-insensitive, as well as androgen-sensitive, prostate cancer cells without affecting the growth of normal prostate epithelial cells indicates that it may be a promising candidate for prostate cancer therapy. The evaluation of ancient herbal medicines may indicate novel strategies for the treatment of prostate cancer, which remains the leading cause of cancer-related deaths in American men (1). In our present investigation, we show that a naturally occurring isoquinoline alkaloid, berberine, significantly inhibits the proliferation and reduces the viability of DU145 and PC-3 as well as LNCaP cells (Fig. 1), which suggests that berberine may be an effective chemotherapeutic agent against both androgen-sensitive and androgen-insensitive prostate cancer cells. Importantly, we found that berberine did not exhibit toxicity to nonneoplastic human prostate epithelial cells under the conditions used, except for a moderate reduction in cell viability at higher concentrations when cells were treated in vitro for an extended period of time. In conclusion, the results of the present study indicate that berberine inhibits proliferation and induces G1-phase arrest and apoptosis in human prostate cancer cells but not in normal human prostate epithelial cells. In addition, we provide mechanistic evidence that berberine-induced apoptosis in prostate carcinoma cells, particularly hormone-refractory prostate carcinoma cells, is mediated through enhanced expression of Bax, disruption of the mitochondrial membrane potential, and activation of caspase-3.
Matti Narkia

The blueberry drink that can shrink tumours | Mail Online - 0 views

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    Blueberry Punch is an Australian product but is available for sale on the internet at £16 a bottle.\n\nIt also includes a host of other natural ingredients thought to boost health, including green tea, olive leaves, the herb tarragon and the spices turmeric and ginger.\n\nIt is thought the ingredients act together to cut inflammation and block a cancer gene.\n\nDr Jas Singh, who conducted the research on mice at Sydney University, said: "We have undertaken efficacy studies on individual components of Blueberry Punch in the same laboratory setting and found these effective in suppressing cell growth in culture.\n\n"We reasoned that synergistic or additive effects are likely to be achieved when they are combined."\n\nThe researchers looked at the effect of Blueberry Punch on both cancer cell cultures in the laboratory and genetically engineered mice with human prostate tumours. After only two weeks of having the syrupy solution added to their drinking water, their tumours had shrunk by
Matti Narkia

High CRP is linked to poor prostate cancer survival - CancerNetwork - 0 views

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    Elevated levels of the inflammatory marker C-reactive protein (CRP) are associated with an increased risk of death in men with advanced prostate cancer, according to findings from a subanalysis of the ASCENT (AIPC Study of Calcitriol Enhancing Taxotere) t
Matti Narkia

ScienceDaily: Pomegranate Juice Helps Keep PSA Levels Stable In Men With Prostate Cancer - 0 views

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    ScienceDaily (July 2, 2006) - Drinking an eight ounce glass of pomegranate juice daily increased by nearly four times the period during which PSA levels in men treated for prostate cancer remained stable, a three-year UCLA study has found.
Matti Narkia

Novel therapy for cancer? from medicineworld.org - 0 views

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    A ground-breaking Canada-wide clinical trial led by Dr. Katherine Borden, at the Institute for Research in Immunology and Cancer (IRIC) of the Universit de Montral, has shown that a common anti-viral drug, ribavirin, can be beneficial in the treatment of cancer patients. Published in the journal Blood (First Edition), the study demonstrates that ribavirin suppresses the activities of the eIF4E gene in patients. This gene is dysregulated in 30 percent of cancers including breast, prostate, head and neck, colon and stomach cancer.
Matti Narkia

Green tea 'slows prostate cancer' - BBC NEWS | Health - 0 views

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    A chemical found in green tea appears to slow the progression of prostate cancer, a study has suggested. Green tea has been linked to a positive effect on a wide range of conditions, including heart disease, cancer and Alzheimer's disease.
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