(IMAGE) Tokyo Medical and Dental University Caption Through a comprehensive genetic analysis of patients with PKD but no family history of the disease, researchers found that a mutation in the IFT140 gene was significantly prevalent. Compared to patients with mutations in more commonly affected genes, PKD in people with an IFT140 mutation usually manifested in a milder form—their total kidney volume (TKV) was lower, and the cysts were sometimes asymmetric. Credit Department of Nephrology, TMDU Usage Restrictions None License Licensed content 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.