DNAJA1 and Alzheimer disease: Interestingly, DnaJA1 is downregulated in post mortem brain samples of patients who suffered from AD (Abisambra et al, 2012; Sorrentino et al, 2017) and has been postulated as one of the major AD‐ and MCI‐associated genes using bioinformatic meta‐analysis (Tao et al, 2020).