An Analysis of the Relationship Between the Genetic Polymorphisms of Interleukin 12 Receptor Subunit Beta 1 and Crohn's Disease in Chinese Patients

From January 2018 to May 2025, diagnosed CD patients and gender- and age-matched normal controls were collected from Department of Gastroenterology, the Second Affiliated Hospital of Wenzhou Medical University. Our study aimed to explore the associations of interleukin 12 receptor subunit beta 1 (IL-12RB1) gene polymorphisms with the risk and clinicopathological characteristics of Crohn's disease (CD), and to analyze the effects of IL-12RB1 gene variations on the clinical response of ustekinumab (UST) treatment in CD patients at week 8.

From January 2018 to May 2025, diagnosed CD patients and gender- and age-matched normal controls were collected from Department of Gastroenterology, the Second Affiliated Hospital of Wenzhou Medical University. Genotypes of IL-12RB1 were examined by multiplex polymerase chain reaction-ligase detection reaction technique. Unconditional logistic regression analysis was employed to analyze the distribution differences of IL-12RB1 gene polymorphisms between CD group and normal control group, as well as their influences on the clinicopathological characteristics and 8-week clinical response to UST treatment of CD patients.