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Meta-Analysis
. 2015 Jan 24;385(9965):351-61.
doi: 10.1016/S0140-6736(14)61183-1. Epub 2014 Sep 24.

HMG-coenzyme A reductase inhibition, type 2 diabetes, and bodyweight: evidence from genetic analysis and randomised trials

Daniel I Swerdlow  1 David Preiss  2 Karoline B Kuchenbaecker  3 Michael V Holmes  4 Jorgen E L Engmann  4 Tina Shah  4 Reecha Sofat  5 Stefan Stender  6 Paul C D Johnson  7 Robert A Scott  8 Maarten Leusink  9 Niek Verweij  10 Stephen J Sharp  8 Yiran Guo  11 Claudia Giambartolomei  12 Christina Chung  13 Anne Peasey  13 Antoinette Amuzu  14 KaWah Li  15 Jutta Palmen  15 Philip Howard  15 Jackie A Cooper  15 Fotios Drenos  15 Yun R Li  11 Gordon Lowe  16 John Gallacher  17 Marlene C W Stewart  18 Ioanna Tzoulaki  19 Sarah G Buxbaum  20 Daphne L van der A  21 Nita G Forouhi  8 N Charlotte Onland-Moret  22 Yvonne T van der Schouw  22 Renate B Schnabel  23 Jaroslav A Hubacek  24 Ruzena Kubinova  25 Migle Baceviciene  26 Abdonas Tamosiunas  27 Andrzej Pajak  28 Roman Topor-Madry  28 Urszula Stepaniak  28 Sofia Malyutina  29 Damiano Baldassarre  30 Bengt Sennblad  31 Elena Tremoli  30 Ulf de Faire  32 Fabrizio Veglia  33 Ian Ford  7 J Wouter Jukema  34 Rudi G J Westendorp  35 Gert Jan de Borst  36 Pim A de Jong  37 Ale Algra  38 Wilko Spiering  39 Anke H Maitland-van der Zee  9 Olaf H Klungel  9 Anthonius de Boer  9 Pieter A Doevendans  40 Charles B Eaton  41 Jennifer G Robinson  42 David Duggan  43 DIAGRAM ConsortiumMAGIC ConsortiumInterAct ConsortiumJohn Kjekshus  44 John R Downs  45 Antonio M Gotto  46 Anthony C Keech  47 Roberto Marchioli  48 Gianni Tognoni  49 Peter S Sever  50 Neil R Poulter  50 David D Waters  51 Terje R Pedersen  52 Pierre Amarenco  53 Haruo Nakamura  54 John J V McMurray  55 James D Lewsey  56 Daniel I Chasman  57 Paul M Ridker  57 Aldo P Maggioni  58 Luigi Tavazzi  59 Kausik K Ray  60 Sreenivasa Rao Kondapally Seshasai  60 JoAnn E Manson  57 Jackie F Price  18 Peter H Whincup  61 Richard W Morris  62 Debbie A Lawlor  63 George Davey Smith  63 Yoav Ben-Shlomo  64 Pamela J Schreiner  65 Myriam Fornage  66 David S Siscovick  67 Mary Cushman  68 Meena Kumari  13 Nick J Wareham  8 W M Monique Verschuren  21 Susan Redline  69 Sanjay R Patel  70 John C Whittaker  71 Anders Hamsten  72 Joseph A Delaney  73 Caroline Dale  74 Tom R Gaunt  75 Andrew Wong  76 Diana Kuh  76 Rebecca Hardy  76 Sekar Kathiresan  77 Berta A Castillo  11 Pim van der Harst  10 Eric J Brunner  13 Anne Tybjaerg-Hansen  6 Michael G Marmot  13 Ronald M Krauss  78 Michael Tsai  79 Josef Coresh  80 Ronald C Hoogeveen  81 Bruce M Psaty  67 Leslie A Lange  82 Hakon Hakonarson  11 Frank Dudbridge  14 Steve E Humphries  15 Philippa J Talmud  15 Mika Kivimäki  13 Nicholas J Timpson  63 Claudia Langenberg  8 Folkert W Asselbergs  83 Mikhail Voevoda  84 Martin Bobak  13 Hynek Pikhart  13 James G Wilson  85 Alex P Reiner  86 Brendan J Keating  11 Aroon D Hingorani  4 Naveed Sattar  55
Affiliations
Meta-Analysis

HMG-coenzyme A reductase inhibition, type 2 diabetes, and bodyweight: evidence from genetic analysis and randomised trials

Daniel I Swerdlow et al. Lancet. .

Abstract

Background: Statins increase the risk of new-onset type 2 diabetes mellitus. We aimed to assess whether this increase in risk is a consequence of inhibition of 3-hydroxy-3-methylglutaryl-CoA reductase (HMGCR), the intended drug target.

Methods: We used single nucleotide polymorphisms in the HMGCR gene, rs17238484 (for the main analysis) and rs12916 (for a subsidiary analysis) as proxies for HMGCR inhibition by statins. We examined associations of these variants with plasma lipid, glucose, and insulin concentrations; bodyweight; waist circumference; and prevalent and incident type 2 diabetes. Study-specific effect estimates per copy of each LDL-lowering allele were pooled by meta-analysis. These findings were compared with a meta-analysis of new-onset type 2 diabetes and bodyweight change data from randomised trials of statin drugs. The effects of statins in each randomised trial were assessed using meta-analysis.

Findings: Data were available for up to 223 463 individuals from 43 genetic studies. Each additional rs17238484-G allele was associated with a mean 0·06 mmol/L (95% CI 0·05-0·07) lower LDL cholesterol and higher body weight (0·30 kg, 0·18-0·43), waist circumference (0·32 cm, 0·16-0·47), plasma insulin concentration (1·62%, 0·53-2·72), and plasma glucose concentration (0·23%, 0·02-0·44). The rs12916 SNP had similar effects on LDL cholesterol, bodyweight, and waist circumference. The rs17238484-G allele seemed to be associated with higher risk of type 2 diabetes (odds ratio [OR] per allele 1·02, 95% CI 1·00-1·05); the rs12916-T allele association was consistent (1·06, 1·03-1·09). In 129 170 individuals in randomised trials, statins lowered LDL cholesterol by 0·92 mmol/L (95% CI 0·18-1·67) at 1-year of follow-up, increased bodyweight by 0·24 kg (95% CI 0·10-0·38 in all trials; 0·33 kg, 95% CI 0·24-0·42 in placebo or standard care controlled trials and -0·15 kg, 95% CI -0·39 to 0·08 in intensive-dose vs moderate-dose trials) at a mean of 4·2 years (range 1·9-6·7) of follow-up, and increased the odds of new-onset type 2 diabetes (OR 1·12, 95% CI 1·06-1·18 in all trials; 1·11, 95% CI 1·03-1·20 in placebo or standard care controlled trials and 1·12, 95% CI 1·04-1·22 in intensive-dose vs moderate dose trials).

Interpretation: The increased risk of type 2 diabetes noted with statins is at least partially explained by HMGCR inhibition.

Funding: The funding sources are cited at the end of the paper.

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Figures

Figure 1
Figure 1
Association of rs17238484 genotype with type-2 diabetes-related traits Association of the rs17238484 genotype with (A) major plasma lipids fractions; (B) plasma glucose and insulin; (C) BMI and bodyweight; (D) waist and hip circumference and waist:hip ratio; and (E) risk of type 2 diabetes. Bars are 95% CIs. BMI=body-mass index.
Figure 2
Figure 2
Meta-analyses of the associations of 3-hydroxy-3-methylglutaryl-CoA reductase variants rs17238484 and rs12916 with risk of type 2 diabetes Data were analysed by fixed-effects meta-analysis.
Figure 3
Figure 3
Effect of statin treatment on new-onset type 2 diabetes Data were analysed by random-effects meta-analysis. OR=odds ratio. Case=developed type 2 diabetes. Non-case=did not develop type 2 diabetes.
Figure 4
Figure 4
Effect of statin treatment on bodyweight Data were analysed by random-effects meta-analysis. In most trials, the total number of participants without type 2 diabetes at baseline for whom bodyweight data were available was smaller than the total number for whom data were available for the analysis of new-onset type 2 diabetes.

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