Diverticular disease: picking pockets and population biobanks

The last decade has seen an explosion in genome-wide association studies (GWAS) in many diseases. With these—and its worth reminding ourselves that this is the primary goal of GWAS—have come valuable insights into pathogenic pathways. Some have been predictable (eg, variants affecting antigen presentation, co-stimulation and T-cell responses in immune-mediated diseases) and others, unexpected (eg, autophagy in Crohn’s disease). Until recently,...