CNR1 and oculocutaneous albinism type 1: In addition, recent studies demonstrated that renal hypoxia‐induced ATN promotes tubulointerstitial fibrosis.40, 41, 42 Hence, our hypothesis is that CB1 expression at D0 is predictive for the development of kidney graft fibrosis as a consequence of ischaemia‐induced ATN and that early CB1 expression could be used as a biomarker.