Meta-Analysis
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World J Gastroenterol. Oct 21, 2013; 19(39): 6656-6664
Published online Oct 21, 2013. doi: 10.3748/wjg.v19.i39.6656
Macrophage migration inhibitory factor gene polymorphisms in inflammatory bowel disease: An association study in New Zealand Caucasians and meta-analysis
James D Falvey, Robert W Bentley, Tony R Merriman, Mark B Hampton, Murray L Barclay, Richard B Gearry, Rebecca L Roberts
James D Falvey, Robert W Bentley, Richard B Gearry, Murray L Barclay, Department of Medicine, University of Otago, Christchurch 8011, New Zealand
James D Falvey, Robert W Bentley, Richard B Gearry, Murray L Barclay, Department of Gastroenterology, Christchurch Hospital, Christchurch 8011, New Zealand
Tony R Merriman, Department of Biochemistry, University of Otago, Dunedin 9054, New Zealand
Mark B Hampton, Department of Pathology, University of Otago, Christchurch 8011, New Zealand
Rebecca L Roberts, Department of Surgical Sciences, Dunedin School of Medicine, Dunedin 9054, New Zealand
Author contributions: Falvey JD and Roberts RL contributed equally to this work; Falvey JD, Bentley RW, Hampton MB, Gearry RB, and Roberts RL designed the study; Roberts RL performed the genotyping of controls and patients; Merriman TR provided control subjects; Barclay ML and Gearry RB provided patients and associated phenotype data; Falvey JD and Roberts RL performed the data analyses and wrote the paper.
Supported by The Health Research Council of New Zealand; Scholarships from the Canterbury Gastroenterology Research Trust, New Zealand Society of Gastroenterology Ferring Scholarship, the Bowel and Liver Trust Canterbury and from the University of Otago to Falvey JD
Correspondence to: Dr. Rebecca L Roberts, Department of Surgical Sciences, Dunedin School of Medicine, 310 Great King St, PO Box 913, Dunedin 9054, New Zealand. rebecca.roberts@otago.ac.nz
Telephone: +64-3-4740999 Fax: +64-3-4747622
Received: February 12, 2013
Revised: April 5, 2013
Accepted: April 13, 2013
Published online: October 21, 2013
Core Tip

Core tip: Migration inhibitory factor (MIF) is an important mediator of inflammatory bowel disease (IBD). However, whether promoter polymorphisms in MIF alter susceptibility to IBD is unclear. This study sought to clarify this, as definitively as possible, for Caucasians and East Asians. Analysis of a New Zealand Caucasian cohort found no association of the polymorphisms MIF -173G > C and CATT5-8 with IBD. Subsequent meta-analysis of the New Zealand data with published MIF -173G > C data from other Caucasian cohorts found no association. A separate meta-analysis of East Asian datasets also found no evidence of association of this promoter polymorphism with IBD.