IFT140 and ciliopathy: Variants in IFT140 are implicated in the pathogenesis of CED and MZSDS, but also in JATD, Bardet-Biedl syndrome (BBS), Optiz trigonocephaly C syndrome (OTCS), and isolated retinitis pigmentosa (RP) displaying the complexity of ciliopathies (Cole and Snell, 2009; Schmidts et al., 2013; Bifari et al., 2016; Schaefer et al., 2016; Pena-Padilla et al., 2017).