Indeed, we found both articles reporting UPR activation in GD and PD patients with mutations in GBA gene and articles showing lack of evidence (Farfel-Becker et al., 2009; Gegg et al., 2012; Maor et al., 2013; Braunstein et al., 2018; Do et al., 2019; Ivanova et al., 2019). The gene discussed is GBA1; the disease is Parkinson disease.