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Epub 2017 Aug 10. Metformin reduces all-cause mortality and diseases of ageing independent of its effect on diabetes control: A systematic review and meta-analysis Jared M Campbell^ 1 , Susan M Bellman^ 2 , Matthew D Stephenson^ 2 , Karolina Lisy^ 3 Affiliations Expand Affiliations * ^1 The Joanna Briggs Institute, The University of Adelaide, Adelaide, South Australia, Australia; Centre for Nanoscale BioPhotonics, Macquarie University, Sydney, New South Wales, Australia. Electronic address: Jared.campbell@mq.edu.au. * ^2 The Joanna Briggs Institute, The University of Adelaide, Adelaide, South Australia, Australia. * ^3 Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia. * PMID: 28802803 * DOI: 10.1016/j.arr.2017.08.003 Item in Clipboard Review Metformin reduces all-cause mortality and diseases of ageing independent of its effect on diabetes control: A systematic review and meta-analysis Jared M Campbell et al. Ageing Res Rev. 2017 Nov. Show details Display options Display options Format [Abstract] Ageing Res Rev Actions * Search in PubMed * Search in NLM Catalog * Add to Search . 2017 Nov;40:31-44. doi: 10.1016/j.arr.2017.08.003. Epub 2017 Aug 10. Authors Jared M Campbell^ 1 , Susan M Bellman^ 2 , Matthew D Stephenson^ 2 , Karolina Lisy^ 3 Affiliations * ^1 The Joanna Briggs Institute, The University of Adelaide, Adelaide, South Australia, Australia; Centre for Nanoscale BioPhotonics, Macquarie University, Sydney, New South Wales, Australia. Electronic address: Jared.campbell@mq.edu.au. * ^2 The Joanna Briggs Institute, The University of Adelaide, Adelaide, South Australia, Australia. * ^3 Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia. * PMID: 28802803 * DOI: 10.1016/j.arr.2017.08.003 Item in Clipboard Full text links Cite Display options Display options Format [Abstract] Abstract This systematic review investigated whether the insulin sensitiser metformin has a geroprotective effect in humans. Pubmed and Embase were searched along with databases of unpublished studies. Eligible research investigated the effect of metformin on all-cause mortality or diseases of ageing relative to non-diabetic populations or diabetics receiving other therapies with adjustment for disease control achieved. Overall, 260 full-texts were reviewed and 53 met the inclusion criteria. Diabetics taking metformin had significantly lower all-cause mortality than non-diabetics (hazard ratio (HR)=0.93, 95%CI 0.88-0.99), as did diabetics taking metformin compared to diabetics receiving non-metformin therapies (HR=0.72, 95%CI 0.65-0.80), insulin (HR=0.68, 95%CI 0.63-0.75) or sulphonylurea (HR= 0.80, 95%CI 0.66-0.97). Metformin users also had reduced cancer compared to non-diabetics (rate ratio=0.94, 95%CI 0.92-0.97) and cardiovascular disease (CVD) compared to diabetics receiving non-metformin therapies (HR=0.76, 95%CI 0.66-0.87) or insulin (HR= 0.78, 95%CI 0.73-0.83). Differences in baseline characteristics were observed which had the potential to bias findings, although statistical adjustments were made. The apparent reductions in all-cause mortality and diseases of ageing associated with metformin use suggest that metformin could be extending life and healthspans by acting as a geroprotective agent. Keywords: Geroprotection; Insulin sensitizer; Lifespan; Longevity; Metformin; ageing. Copyright (c) 2017 Elsevier B.V. All rights reserved. Similar articles * Mortality outcomes of different sulphonylurea drugs: the results of a 14-year cohort study of type 2 diabetic patients. Bo S, Castiglione A, Ghigo E, Gentile L, Durazzo M, Cavallo-Perin P, Ciccone G. Bo S, et al. Eur J Endocrinol. 2013 Jun 7;169 (1):117-26. doi: 10.1530/EJE-13-0299. Print 2013 Jul. Eur J Endocrinol. 2013. 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