Skip to main content
Top
Published in: World Journal of Urology 1/2022

01-01-2022 | Prostate Cancer | Topic Paper

The role of metformin, statins and diet in men on active surveillance for prostate cancer

Authors: Raj Tiwari, Neil Fleshner

Published in: World Journal of Urology | Issue 1/2022

Login to get access

Abstract

Purpose of review

A sound scientific basis has been emerging on the anti-neoplastic role of metformin, statins and dietary interventions. However, evidence in prostate cancer patients remains mixed owing to an absence of completed randomized trials. This overview examines the rationale for metformin, statins and dietary intervention for secondary prevention in men on active surveillance by summarizing current evidence base and biological mechanisms in influencing cancer progression and mortality.

Methods

A comprehensive literature search was performed to identify studies that evaluated the role of metformin, statins and diet in the secondary prevention of prostate cancer as well as those that described the anti-cancer mechanisms of these agents. The search included Pubmed, MEDLINE, EMBASE and Cochrane library from inception till August 2021.

Results

A total of 14 trials on metformin, 21 trials on statins and 13 trials on dietary measures were evaluated. Majority were observational population-based cohort studies or meta-analysis of them. Three ongoing prospective randomized controlled trials were also reported. Overall, mixed results were obtained.

Conclusions

The role of metformin and statins remains promising with several trials showing reduced rates of progression and cancer specific mortality. Combination therapy strategies have also been evaluated in more advanced patients showing synergism. Dietary interventions especially fruits, vegetables and fish intake has shown some benefit albeit with mixed results for others like legumes, red meat, coffee and multivitamins. Several ongoing randomized trials will provide stronger evidence in the future for secondary prevention.
Literature
2.
go back to reference Sanda MG, Dunn RL, Michealski J, Sandler HM, Northouse L, Hembroff L et al (2008) Quality of life and satisfaction with outcome among prostate cancer survivors. N Engl J Med 358(12):1250–1261PubMed Sanda MG, Dunn RL, Michealski J, Sandler HM, Northouse L, Hembroff L et al (2008) Quality of life and satisfaction with outcome among prostate cancer survivors. N Engl J Med 358(12):1250–1261PubMed
3.
go back to reference Tosoian JJ, Carter HB, Lepor A, Loeb S (2016) Active surveillance for prostate cancer : current evidence and contemporary state of practice. Nat Rev Urol 13:205–215PubMedPubMedCentral Tosoian JJ, Carter HB, Lepor A, Loeb S (2016) Active surveillance for prostate cancer : current evidence and contemporary state of practice. Nat Rev Urol 13:205–215PubMedPubMedCentral
4.
go back to reference Mano R, Margel D (2018) Is there a role for pharmacologic manipulation to prevent progression in men on active surveillance? The role of 5-ARIs, statins, and metformin. In: Klotz L (ed) Active surveillance for localized prostate cancer, Current Clinical Urology, Chp 17. Springer International Publishing. ISBN 978-3-319-62710-6. https://doi.org/10.1007/978-3-319-62710-6_17 Mano R, Margel D (2018) Is there a role for pharmacologic manipulation to prevent progression in men on active surveillance? The role of 5-ARIs, statins, and metformin. In: Klotz L (ed) Active surveillance for localized prostate cancer, Current Clinical Urology, Chp 17. Springer International Publishing. ISBN 978-3-319-62710-6. https://​doi.​org/​10.​1007/​978-3-319-62710-6_​17
5.
6.
go back to reference Ben Sahra I, Le Marchand-Brustel Y, Tanti JF, Bost F (2010) Metformin in cancer therapy: a new perspective for an old antidiabetic drug? Mol Cancer Ther 9:1092–1099PubMed Ben Sahra I, Le Marchand-Brustel Y, Tanti JF, Bost F (2010) Metformin in cancer therapy: a new perspective for an old antidiabetic drug? Mol Cancer Ther 9:1092–1099PubMed
7.
go back to reference Hankinson SJ, Fam M, Patel NN (2017) A review for clinicians: prostate cancer and the antineoplastic properties of metformin. Urol Oncol 35(1):21–29PubMed Hankinson SJ, Fam M, Patel NN (2017) A review for clinicians: prostate cancer and the antineoplastic properties of metformin. Urol Oncol 35(1):21–29PubMed
8.
go back to reference Dowling RJ, Zakikhani M, Fantus IG, Pollak M, Sonenberg N (2007) Metformin inhibits mammalian target o rapamycin-dependent translation initiation in breast cancer cells. Cancer Res 67(22):10804–10812PubMed Dowling RJ, Zakikhani M, Fantus IG, Pollak M, Sonenberg N (2007) Metformin inhibits mammalian target o rapamycin-dependent translation initiation in breast cancer cells. Cancer Res 67(22):10804–10812PubMed
9.
go back to reference Xiang X, Saha AK, Wen R, Rudeman NB, Luo Z (2004) AMP-activated protein kinase activators can inhibit the growth of prostate cancer cells by multiple mechanisms. Biochem Biophys Res Commun 321(1):161–167PubMed Xiang X, Saha AK, Wen R, Rudeman NB, Luo Z (2004) AMP-activated protein kinase activators can inhibit the growth of prostate cancer cells by multiple mechanisms. Biochem Biophys Res Commun 321(1):161–167PubMed
10.
go back to reference Miller RA, Chu Q, Xie J, Foretz M, Viollet B, Birnbaum MJ (2013) Biguanides suppress hepatic glucagon signalling by decreasing production of cyclic AMP. Nature 494(7436):256–260PubMedPubMedCentral Miller RA, Chu Q, Xie J, Foretz M, Viollet B, Birnbaum MJ (2013) Biguanides suppress hepatic glucagon signalling by decreasing production of cyclic AMP. Nature 494(7436):256–260PubMedPubMedCentral
11.
go back to reference Zhang HH, Guo XL (2016) Combinational strategies of metformin and chemotherapy in cancers. Cancer Chemother Pharmacol 78(1):13–26PubMed Zhang HH, Guo XL (2016) Combinational strategies of metformin and chemotherapy in cancers. Cancer Chemother Pharmacol 78(1):13–26PubMed
12.
go back to reference Comstock CE, Revelo MP, Buncher CR, Knudsen KE (2007) Impact of differential cyclin D1 expression and localisation in prostate cancer. Br J Cancer 96(6):970–979PubMedPubMedCentral Comstock CE, Revelo MP, Buncher CR, Knudsen KE (2007) Impact of differential cyclin D1 expression and localisation in prostate cancer. Br J Cancer 96(6):970–979PubMedPubMedCentral
13.
go back to reference Joshua AM, Zanella VE, Downes MR, Bowes B, Hersey K, Fleshner N et al (2014) A pilot “window of opportunity” neoadjuvant study of metformin in localised prostate cancer. Prostate Cancer Prostate Dis 17:252–258 Joshua AM, Zanella VE, Downes MR, Bowes B, Hersey K, Fleshner N et al (2014) A pilot “window of opportunity” neoadjuvant study of metformin in localised prostate cancer. Prostate Cancer Prostate Dis 17:252–258
14.
go back to reference Margel D, Urbach DR, Lipscombe LL, Bell CM, Kulkarni G, Austin PC et al (2013) Metformin use and all cause and prostate cancer specific mortality among men with diabetes. J Clin Oncol 31(25):3069–3075PubMed Margel D, Urbach DR, Lipscombe LL, Bell CM, Kulkarni G, Austin PC et al (2013) Metformin use and all cause and prostate cancer specific mortality among men with diabetes. J Clin Oncol 31(25):3069–3075PubMed
15.
go back to reference Stopsack KH, Ziehr DR, Rider JR, Giovanucci EL (2016) Metformin and prostate cancer mortality: a meta analysis. Cancer Causes Control 27:105–113PubMed Stopsack KH, Ziehr DR, Rider JR, Giovanucci EL (2016) Metformin and prostate cancer mortality: a meta analysis. Cancer Causes Control 27:105–113PubMed
16.
go back to reference Raval AD, Thakker D, Vyas A, Salkini M, Madhavana S, Sambamoorthi U (2015) Impact of metformin on clinical outcomes among men with prostate cancer: a systemic review and meta-analysis. Prostate Cancer Prostatic Dis 18:110–121PubMedPubMedCentral Raval AD, Thakker D, Vyas A, Salkini M, Madhavana S, Sambamoorthi U (2015) Impact of metformin on clinical outcomes among men with prostate cancer: a systemic review and meta-analysis. Prostate Cancer Prostatic Dis 18:110–121PubMedPubMedCentral
17.
go back to reference Yu H, Yin L, Jiag X, Sun X, Wu J, Tian H et al (2014) Effect of metformin on cancer risk and treatment outcome of prostate cancer: a meta-analysis of epidemiological observational studies. PLoS ONE 9:e116327PubMedPubMedCentral Yu H, Yin L, Jiag X, Sun X, Wu J, Tian H et al (2014) Effect of metformin on cancer risk and treatment outcome of prostate cancer: a meta-analysis of epidemiological observational studies. PLoS ONE 9:e116327PubMedPubMedCentral
18.
go back to reference Deng D, Yang Y, Tang X, Skrip L, Qiu J, Wang Y et al (2015) Association between metformin therapy and incidence, recurrence and mortality of prostate cancer: evidence from a meta-analysis. Diabetes Metab Res Rev 31:595–602PubMed Deng D, Yang Y, Tang X, Skrip L, Qiu J, Wang Y et al (2015) Association between metformin therapy and incidence, recurrence and mortality of prostate cancer: evidence from a meta-analysis. Diabetes Metab Res Rev 31:595–602PubMed
19.
go back to reference University Health Network, Toronto (2021) A Randomized double-blind, placebo controlled trial of metformin in reducing progression among men on expectant management for low risk prostate cancer: the MAST (metformin active surveillance trial) study. In: ClinicalTrial.gov [Internet] Bethesda:National Library of Medicine (US): 2000-[cited 2021 July 17]. Available from: http://clinicaltrails.gov/ct2/show/NCT01864096 NLM identifier: NCT01864096 University Health Network, Toronto (2021) A Randomized double-blind, placebo controlled trial of metformin in reducing progression among men on expectant management for low risk prostate cancer: the MAST (metformin active surveillance trial) study. In: ClinicalTrial.gov [Internet] Bethesda:National Library of Medicine (US): 2000-[cited 2021 July 17]. Available from: http://​clinicaltrails.​gov/​ct2/​show/​NCT01864096 NLM identifier: NCT01864096
20.
go back to reference Johns Hopkins Medicine website [Internet] (2021) Wellness and Prevention. How statin drugs protect the heart 2021; cited 17 July 2021; hopkinsmedicine.org Johns Hopkins Medicine website [Internet] (2021) Wellness and Prevention. How statin drugs protect the heart 2021; cited 17 July 2021; hopkinsmedicine.org
21.
go back to reference Hamilton RJ, Freedland SJ (2008) Rationale for statins in chemoprevention of prostate cancer. Curr Urol Rep 9(3):189–196PubMed Hamilton RJ, Freedland SJ (2008) Rationale for statins in chemoprevention of prostate cancer. Curr Urol Rep 9(3):189–196PubMed
22.
go back to reference Schaffner CP (1981) Prostatic cholesterol metabolism: regulation and alteration. Prog Clin Biol Res 75A:279–324PubMed Schaffner CP (1981) Prostatic cholesterol metabolism: regulation and alteration. Prog Clin Biol Res 75A:279–324PubMed
23.
go back to reference Simons K, Ikonen E (1997) Functional rafts in cell membranes. Nature 387:569–572PubMed Simons K, Ikonen E (1997) Functional rafts in cell membranes. Nature 387:569–572PubMed
24.
go back to reference Freeman MR, Cinar B, Lu ML (2005) Membrane rafts as potential sites of nongenomic hormonal signaling in prostate cancer. Trends Endocrinol Metab 16:273–279PubMed Freeman MR, Cinar B, Lu ML (2005) Membrane rafts as potential sites of nongenomic hormonal signaling in prostate cancer. Trends Endocrinol Metab 16:273–279PubMed
25.
go back to reference Zhuang L, Lin J, Lu ML, Solomon KR, Freeman MR (2002) Cholesterol rich lipid rafts mediate AKT-regulated survival in prostate cancer cells. Cancer Res 62:2227–3221PubMed Zhuang L, Lin J, Lu ML, Solomon KR, Freeman MR (2002) Cholesterol rich lipid rafts mediate AKT-regulated survival in prostate cancer cells. Cancer Res 62:2227–3221PubMed
26.
go back to reference Smith SM et al (2006) Luteinizing hormone receptors translocate to plasma membrane microdomains after binding of human chorionic gonadotropin. Endocrinology 147:1789–1795PubMed Smith SM et al (2006) Luteinizing hormone receptors translocate to plasma membrane microdomains after binding of human chorionic gonadotropin. Endocrinology 147:1789–1795PubMed
27.
go back to reference Lawrence JC, Saslowsky DE, Edwardson JM, Hendersom RM (2003) Real time analysis of the effects of cholesterol on lipid raft behavior using atomic force microscopy. Biophys J 84:1827–1832PubMedPubMedCentral Lawrence JC, Saslowsky DE, Edwardson JM, Hendersom RM (2003) Real time analysis of the effects of cholesterol on lipid raft behavior using atomic force microscopy. Biophys J 84:1827–1832PubMedPubMedCentral
28.
go back to reference Zhuang L, Kim J, Adama RM, Solomon KR, Freeman MR (2005) Cholesterol targeting alters lipid raft composition and cell survival in prostate cancer cells and xenografts. J Clin Invest 115(4):959–968PubMedPubMedCentral Zhuang L, Kim J, Adama RM, Solomon KR, Freeman MR (2005) Cholesterol targeting alters lipid raft composition and cell survival in prostate cancer cells and xenografts. J Clin Invest 115(4):959–968PubMedPubMedCentral
29.
go back to reference Alfaqih MA, Allott EH, Hamilton RJ, Freeman MR, Freedland SJ (2016) The current evidence on statin use and prostate cancer prevention: are we there yet? Nat Rev Urol 14:107–119PubMedPubMedCentral Alfaqih MA, Allott EH, Hamilton RJ, Freeman MR, Freedland SJ (2016) The current evidence on statin use and prostate cancer prevention: are we there yet? Nat Rev Urol 14:107–119PubMedPubMedCentral
30.
go back to reference Dobs AS et al (2000) Effects of high dose simvastatin on adrenal and gonadal steroidogenesis in men with hypercholesterolemia. Metabolism 49:1234–1238PubMed Dobs AS et al (2000) Effects of high dose simvastatin on adrenal and gonadal steroidogenesis in men with hypercholesterolemia. Metabolism 49:1234–1238PubMed
31.
go back to reference Hall SA et al (2007) Do statins affect androgen levels in men? Results from the Boston area community health survey. Cancer Epidemiol Biomarkers Prev 16:1587–1594PubMed Hall SA et al (2007) Do statins affect androgen levels in men? Results from the Boston area community health survey. Cancer Epidemiol Biomarkers Prev 16:1587–1594PubMed
32.
go back to reference Graaf MR, Richel DJ, van Noorden CJ, Guchelaar HJ (2004) Effects of statins and farnesyltransferase inhibitors on the development and progression of cancer. Cancer Treat Rev 30:609–641PubMed Graaf MR, Richel DJ, van Noorden CJ, Guchelaar HJ (2004) Effects of statins and farnesyltransferase inhibitors on the development and progression of cancer. Cancer Treat Rev 30:609–641PubMed
33.
go back to reference Demierre MF, Higgins PD, Gruber SB, Hawk E, Lippman SM (2005) Statins and cancer prevention. Nat rev Cancer 5:930–942PubMed Demierre MF, Higgins PD, Gruber SB, Hawk E, Lippman SM (2005) Statins and cancer prevention. Nat rev Cancer 5:930–942PubMed
34.
go back to reference Lee SJ et al (1998) Inhibition of the 3-hydroxy-3-methylglutaryl-coenzymeA reductase pathway induces p53 independent transcriptional regulation of p219WAF1/CIP10 in human prostate carcinoma cells. J Biol Chem 273:10618–10623PubMed Lee SJ et al (1998) Inhibition of the 3-hydroxy-3-methylglutaryl-coenzymeA reductase pathway induces p53 independent transcriptional regulation of p219WAF1/CIP10 in human prostate carcinoma cells. J Biol Chem 273:10618–10623PubMed
35.
go back to reference Banez LL et al (2010) Association between statins and prostate tumour inflammatory infiltrate in men undergoing radical prostatectomy. Cancer Epidemiol Biomarkers Preview 19:722–728 Banez LL et al (2010) Association between statins and prostate tumour inflammatory infiltrate in men undergoing radical prostatectomy. Cancer Epidemiol Biomarkers Preview 19:722–728
36.
go back to reference Babcook MA, Joshi A, Montellano JA, Shanker E, Gupta S (2016) Statin use in prostate cancer: an update. Nutr Metab Insights 9:43–50PubMedPubMedCentral Babcook MA, Joshi A, Montellano JA, Shanker E, Gupta S (2016) Statin use in prostate cancer: an update. Nutr Metab Insights 9:43–50PubMedPubMedCentral
37.
go back to reference Yu O, Eberg M, Benayoun S, Aprikian A, Batist G, Suissa S et al (2014) Use of statins and the risk of death in patients with prostate cancer. J Clin Oncol 32(1):5–11PubMed Yu O, Eberg M, Benayoun S, Aprikian A, Batist G, Suissa S et al (2014) Use of statins and the risk of death in patients with prostate cancer. J Clin Oncol 32(1):5–11PubMed
38.
go back to reference Longo J, Mullen PJ, Yu R et al (2019) An actionable sterol regulated feedback loop modulates statin sensitivity in prostate cancer. Mol Metab 25:119–130PubMedPubMedCentral Longo J, Mullen PJ, Yu R et al (2019) An actionable sterol regulated feedback loop modulates statin sensitivity in prostate cancer. Mol Metab 25:119–130PubMedPubMedCentral
39.
go back to reference Goldberg H, Mohsin F, Saskin R, Fleshner N et al (2021) The suggested unique association between the various statin subgroups and prostate cancer. Eur Urol Focus 7:537–545PubMed Goldberg H, Mohsin F, Saskin R, Fleshner N et al (2021) The suggested unique association between the various statin subgroups and prostate cancer. Eur Urol Focus 7:537–545PubMed
40.
go back to reference Hamilton RJ, Goldberg KC, Platz EA, Freedland SJ (2008) The influence of statin medications on prostate specific antigen levels. J Natl Cancer Inst 100:1511–1518PubMed Hamilton RJ, Goldberg KC, Platz EA, Freedland SJ (2008) The influence of statin medications on prostate specific antigen levels. J Natl Cancer Inst 100:1511–1518PubMed
41.
go back to reference Freedland SJ, Hamilton RJ, Gerber L, Rittmaster RS et al (2013) Statin use and risk of prostate cancer and high grade prostate cancer: results from the REDUCE study. Prostate Cancer Prostatic Dis 16:254–259PubMed Freedland SJ, Hamilton RJ, Gerber L, Rittmaster RS et al (2013) Statin use and risk of prostate cancer and high grade prostate cancer: results from the REDUCE study. Prostate Cancer Prostatic Dis 16:254–259PubMed
42.
go back to reference Andriole GL, Botswick DG, Brawley OW, Gomelia LG, Marberger M, Montorsi F et al (2010) Effect of dutasteride on the risk of prostate cancer. N Eng J Med 362:1192–1202 Andriole GL, Botswick DG, Brawley OW, Gomelia LG, Marberger M, Montorsi F et al (2010) Effect of dutasteride on the risk of prostate cancer. N Eng J Med 362:1192–1202
43.
go back to reference Moyad MA, Klotz LH (2011) Statin clinical trial (REALITY) for prostate cancer: an over 15 year wait is finally over thanks to a dietary supplement. Urol Clin North Am 38(3):325–331PubMed Moyad MA, Klotz LH (2011) Statin clinical trial (REALITY) for prostate cancer: an over 15 year wait is finally over thanks to a dietary supplement. Urol Clin North Am 38(3):325–331PubMed
44.
go back to reference Nijjar PS, Burke FM, Bloesch A, Rader DJ (2010) Role of dietary supplements in lowering low-density lipoprotein cholesterol; a review. J Clin Lipidol 4(4):248–258PubMed Nijjar PS, Burke FM, Bloesch A, Rader DJ (2010) Role of dietary supplements in lowering low-density lipoprotein cholesterol; a review. J Clin Lipidol 4(4):248–258PubMed
45.
go back to reference Lu Z, Kou W, Du B, Wu Y, Zhao S, Bursco OA et al (2008) Effect of Xuezhikang, an extract from red yeast Chinese rice, on coronary events in a Chinese population with previous myocardial infarction. Am J Cardiol 101(12):1689–1693PubMed Lu Z, Kou W, Du B, Wu Y, Zhao S, Bursco OA et al (2008) Effect of Xuezhikang, an extract from red yeast Chinese rice, on coronary events in a Chinese population with previous myocardial infarction. Am J Cardiol 101(12):1689–1693PubMed
46.
go back to reference Hong MY, Seeram NP, Zhang Y, Heber D (2008) Chinese red yeast rice versus lovastatin effects on prostate cancer cells with and without androgen receptor overexpression. J Med Food 11(4):657–666PubMed Hong MY, Seeram NP, Zhang Y, Heber D (2008) Chinese red yeast rice versus lovastatin effects on prostate cancer cells with and without androgen receptor overexpression. J Med Food 11(4):657–666PubMed
47.
go back to reference Hong MY, Henning S, Moro A, Seeram NP, Zhang Y, Heber D (2011) Chinese red yeast rice inhibition of prostate tumour growth in SCID mice. Cancer Prev Res 4(4):608–615 Hong MY, Henning S, Moro A, Seeram NP, Zhang Y, Heber D (2011) Chinese red yeast rice inhibition of prostate tumour growth in SCID mice. Cancer Prev Res 4(4):608–615
49.
go back to reference Chan JM, Van Blarigan EL, Kenfield SA (2014) What should we tell prostate cancer patients about (secondary) prevention. Curr Opin Urol 24(3):318PubMedPubMedCentral Chan JM, Van Blarigan EL, Kenfield SA (2014) What should we tell prostate cancer patients about (secondary) prevention. Curr Opin Urol 24(3):318PubMedPubMedCentral
51.
go back to reference Lin PH, Aronson W, Freedland S (2015) Nutrition, dietary interventions and prostate cancer: the latest evidence. BMC Med 13:3PubMedPubMedCentral Lin PH, Aronson W, Freedland S (2015) Nutrition, dietary interventions and prostate cancer: the latest evidence. BMC Med 13:3PubMedPubMedCentral
52.
go back to reference Chan JM, Holick CN, Leitzann MF et al (2006) Diet after diagnosis and the risk of prostate cancer progression, recurrence and death (United States). Cancer Causes Control 17:199–208PubMed Chan JM, Holick CN, Leitzann MF et al (2006) Diet after diagnosis and the risk of prostate cancer progression, recurrence and death (United States). Cancer Causes Control 17:199–208PubMed
53.
go back to reference Cooperberg M, Carroll P (2015) Trends in management for patients with localized prostate cancer (CaPSURE). JAMA 314(1):80–82PubMed Cooperberg M, Carroll P (2015) Trends in management for patients with localized prostate cancer (CaPSURE). JAMA 314(1):80–82PubMed
54.
go back to reference Diallo A, Deschasaux M, Galan P et al (2016) Associations between fruit, vegetable and legume intake and prostate cancer risk; results from the prospective Supplementation en Vitamines et Mineraux Antioxydants (SU.VI.MAX) cohort. Br J Nutr 115:1579–1585PubMed Diallo A, Deschasaux M, Galan P et al (2016) Associations between fruit, vegetable and legume intake and prostate cancer risk; results from the prospective Supplementation en Vitamines et Mineraux Antioxydants (SU.VI.MAX) cohort. Br J Nutr 115:1579–1585PubMed
55.
go back to reference Higdon JV, Delage B, Williams DE, Dashwood RH (2007) Cruciferous vegetables and human cancer risk: epidemiologic evidence and mechanistic basis. Pharmacol Res 55:224–236PubMedPubMedCentral Higdon JV, Delage B, Williams DE, Dashwood RH (2007) Cruciferous vegetables and human cancer risk: epidemiologic evidence and mechanistic basis. Pharmacol Res 55:224–236PubMedPubMedCentral
56.
go back to reference Hwang YW, Kim SY, Jee SH et al (2009) Soy food consumption and risk of prostate cancer: a meta-analysis of observational studies. Nutr Cancer 61:598–606PubMed Hwang YW, Kim SY, Jee SH et al (2009) Soy food consumption and risk of prostate cancer: a meta-analysis of observational studies. Nutr Cancer 61:598–606PubMed
57.
go back to reference Yan L, Spitznagel EL (2009) Soy consumption and prostate cancer risk in men: a revisit of a meta-analysis. Am J Clin Nutr 89:1155–1163PubMed Yan L, Spitznagel EL (2009) Soy consumption and prostate cancer risk in men: a revisit of a meta-analysis. Am J Clin Nutr 89:1155–1163PubMed
58.
go back to reference Chavarro JE, Stampfer MJ, Hall MN et al (2008) A 22 year prospective study of fish intake in relation to prostate cancer incidence and mortality. Am J Clin Nutr 88:1297–1303PubMed Chavarro JE, Stampfer MJ, Hall MN et al (2008) A 22 year prospective study of fish intake in relation to prostate cancer incidence and mortality. Am J Clin Nutr 88:1297–1303PubMed
59.
go back to reference Discacciati A, Orsini N, Wolk A (2014) Coffee consumption and risk of non-aggressive, aggressive and fatal prostate cancer-a dose response meta-analysis. Ann Oncol 25:584–591PubMed Discacciati A, Orsini N, Wolk A (2014) Coffee consumption and risk of non-aggressive, aggressive and fatal prostate cancer-a dose response meta-analysis. Ann Oncol 25:584–591PubMed
60.
go back to reference Klein EA, Thompson IM Jr, Tangen CM et al (2011) Vitamin E and the risk of prostate cancer: the Selenium and Vitamin E Cancer Prevention Trial (SELECT). J Am Med Assoc 306:1549–1556 Klein EA, Thompson IM Jr, Tangen CM et al (2011) Vitamin E and the risk of prostate cancer: the Selenium and Vitamin E Cancer Prevention Trial (SELECT). J Am Med Assoc 306:1549–1556
61.
go back to reference Kenfield A, DuPre N, richman EL, et al. (2010) Selenium supplementation and lethal prostate cancer. Paper presented at American Institute for Cancer research 2010; Washington DC Kenfield A, DuPre N, richman EL, et al. (2010) Selenium supplementation and lethal prostate cancer. Paper presented at American Institute for Cancer research 2010; Washington DC
Metadata
Title
The role of metformin, statins and diet in men on active surveillance for prostate cancer
Authors
Raj Tiwari
Neil Fleshner
Publication date
01-01-2022
Publisher
Springer Berlin Heidelberg
Published in
World Journal of Urology / Issue 1/2022
Print ISSN: 0724-4983
Electronic ISSN: 1433-8726
DOI
https://doi.org/10.1007/s00345-021-03858-4

Other articles of this Issue 1/2022

World Journal of Urology 1/2022 Go to the issue