Fig. 15From: Elimination of substances from the brain parenchyma: efflux via perivascular pathways and via the blood–brain barrier(Diagram modified from Figure 7c in Gandhi et al. [358])Lactate removal from the brain. Lactate produced within the brain can be effluxed via the blood–brain barrier or via perivascular routes. It may reach the latter locally near the site of its production or at more distant sites having been transferred between astrocytes via gap junctionsBack to article page