PMID- 28912956 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20220129 IS - 2053-3624 (Print) IS - 2053-3624 (Electronic) IS - 2053-3624 (Linking) VI - 4 IP - 2 DP - 2017 TI - Cardiometabolic effects of a novel SIRT1 activator, SRT2104, in people with type 2 diabetes mellitus. PG - e000647 LID - 10.1136/openhrt-2017-000647 [doi] LID - e000647 AB - BACKGROUND: The cardiometabolic effects of SRT2104, a novel SIRT1 activator, were investigated in people with type 2 diabetes mellitus (T2DM). METHODS: Fifteen adults with T2DM underwent a randomised, double-blind, placebo-controlled cross-over trial and received 28 days of oral SRT2104 (2.0 g/day) or placebo. Forearm vasodilatation (measured during intrabrachial bradykinin, acetylcholine and sodium nitroprusside infusions) as well as markers of glycaemic control, lipid profile, plasma fibrinolytic factors, and markers of platelet-monocyte activation, were measured at baseline and at the end of each treatment period. RESULTS: Lipid profile and platelet-monocyte activation were similar in both treatment arms (p>0.05 for all). Forearm vasodilatation was similar on exposure to acetylcholine and sodium nitroprusside (p>0.05, respectively). Bradykinin-induced vasodilatation was less during treatment with SRT2104 versus placebo (7.753vs9.044, respectively, mean difference=-1.291,(95% CI -2.296 to -0.285, p=0.012)). Estimated net plasminogen activator inhibitor type 1 antigen release was reduced in the SRT2104 arm versus placebo (mean difference=-38.89 ng/100 mL tissue/min, (95% CI -75.47, to -2.305, p=0.038)). There were no differences in other plasma fibrinolytic factors (p>0.05 for all). After 28 days, SRT2104 exposure was associated with weight reduction (-0.93 kg (95% CI -1.72 to -0.15), p=0.0236), and a rise in glycated haemoglobin (5 mmol/mol or 0.48% (0.26 to 0.70), p=0.004). CONCLUSIONS: In people with T2DM, SRT2104 had inconsistent, predominantly neutral effects on endothelial and fibrinolytic function, and no discernible effect on lipids or platelet function. In contrast, weight loss was induced along with deterioration in glycaemic control, suggestive of potentially important metabolic effects. CLINICAL TRIAL REGISTRATION: NCT01031108; Results. FAU - Noh, Radzi M AU - Noh RM AD - Department of Diabetes, Royal Infirmary of Edinburgh, Edinburgh, UK. FAU - Venkatasubramanian, Sowmya AU - Venkatasubramanian S AD - Department of Cardiovascular Research, University of Edinburgh, Edinburgh, UK. FAU - Daga, Shruti AU - Daga S AD - Clinical Development, GSK, Surrey, UK. FAU - Langrish, Jeremy AU - Langrish J AD - Department of Cardiovascular Research, University of Edinburgh, Edinburgh, UK. FAU - Mills, Nicholas L AU - Mills NL AD - Centre for Cardiovascular Sciences, University of Edinburgh, Edinburgh, UK. FAU - Lang, Ninian N AU - Lang NN AD - BHF Cardiovascular Research Centre, University of Glasgow, Glasgow, UK. FAU - Hoffmann, Ethan AU - Hoffmann E AD - Research and Development, GlaxoSmithKline, Philadelphia, Pennsylvania, USA. FAU - Waterhouse, Brian AU - Waterhouse B AD - Research and Development, GlaxoSmithKline, Philadelphia, Pennsylvania, USA. FAU - Newby, David E AU - Newby DE AD - Division of Health Sciences, Centre for Cardiovascular Sciences, University of Edinburgh, Edinburgh, Edinburgh, UK. FAU - Frier, Brian M AU - Frier BM AD - Department of Diabetes, Royal Infirmary Edinburgh, NHS Lothian, Edinburgh, UK. LA - eng SI - ClinicalTrials.gov/NCT01031108 GR - Wellcome Trust/United Kingdom GR - FS/16/14/32023/BHF_/British Heart Foundation/United Kingdom PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20170902 PL - England TA - Open Heart JT - Open heart JID - 101631219 PMC - PMC5588958 OTO - NOTNLM OT - SIRT-1 activator OT - cardiovascular risk OT - endothelial dysfunction OT - lipids OT - platelet activation OT - sirtuins OT - type 2 diabetes mellitus OT - weight loss COIS- Competing interests: None declared. EDAT- 2017/09/16 06:00 MHDA- 2017/09/16 06:01 PMCR- 2017/09/02 CRDT- 2017/09/16 06:00 PHST- 2017/04/21 00:00 [received] PHST- 2017/07/28 00:00 [revised] PHST- 2017/08/01 00:00 [accepted] PHST- 2017/09/16 06:00 [entrez] PHST- 2017/09/16 06:00 [pubmed] PHST- 2017/09/16 06:01 [medline] PHST- 2017/09/02 00:00 [pmc-release] AID - openhrt-2017-000647 [pii] AID - 10.1136/openhrt-2017-000647 [doi] PST - epublish SO - Open Heart. 2017 Sep 2;4(2):e000647. doi: 10.1136/openhrt-2017-000647. eCollection 2017.