... of maintenance MDR1 inhibition from birth requiresinvestigation. In addition, more selective inhibitors of MDR1 than CsA are available. CsA is, however, clin-ically used long-term and it might ... approach to the inhibition of substrate synthesis.Future work with neonatal Fabry mice is required to establish a ‘proof of principle’ as to the efficacy of anMDR1 inhibition approach.In summary, ... (stud-ies in progress) and the tissue differences in MDR1expression. Thus, an effect of MDR1 inhibition onGSL biosynthesis in vivo was by no means assured.The possibility of using MDR1 inhibition...