Welcome to the 15th episode of The Brain Podcast - the official podcast of the journals Brain and Brain Communications.  We are very excited to feature our first article from Brain Communications, where we speak with first author Dr Kiel Telesford of the article entitled: Neuron-binding antibody responses are associated with Black ethnicity in multiple sclerosis during natalizumab treatment This episode discussed racial differences in antibody response to natalizumab treatment for individuals of black ethnicity with multiple sclerosis. Further, they consider potential mechanisms which may underly differences and the implications on treatment.  Check out the full article on the Brain Communications website: https://doi.org/10.1093/braincomms/fcad218 This episode was co-hosted by Andreas Themistocleous and Debra Ehrlich,  edited and produced by Michael David and Xin You Tai, co-produced by Antonia Johnston, original music by Ammar Al-Chalabi.