A Mutation in the IKBKB Gene Causes Bronchiectasis (image) Rockefeller University Press Share Print E-Mail Caption CT scans show that the excessive inflammation and infection caused by the mutation in the IKBKB gene results in the thickening of bronchi in the lungs. Credit Cardinez et al., 2018 Usage Restrictions Reporters may freely use these materials in news coverage with the appropriate credit information. Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.