A recent study published in Skin Research & Technology employing Mendelian randomization (MR) methods established a causal link between various types of urticaria and increased risks of mental disorders, such as attention-deficit/hyperactivity disorder (ADHD), bipolar disorder, and schizophrenia. Investigators pulled data from genome-wide association study (GWAS) databases, including those from the Psychiatric Genomics Cooperation (PGC), GWAS Catalog, and the FinnGen Consortium. Two MR methods, including Inverse Variance Weighted (IVW) and Bayesian Weighted MR (BWMR), were employed to systematically explore the impact of different forms of ...