A distribution disorder of Syt7 might therefore have potential effects on synaptic transmission, which in turn leads to the hypothesis that the cognitive deficits in MS patients, such as impaired recent memory, sustained attention, verbal fluency, conceptual reasoning and visuospatial perception 68 are partly due to synaptic dysfunction caused by maldistribution of Syt7. The gene discussed is SYT7; the disease is myeloid sarcoma.