CD40LG and dementia: The subgroup of NMDAR antibodies is important to be aware of, as it questions the relevance of NMDAR antibodies in the pathogenicity of dementia, as verified in a recent study with neuronal cultures from Hara et al. (2018) showing that IgG, but not IgA and IgM NMDAR antibodies are very specific to the CNS disease process generating a drop in extrasynaptic and synaptic NMDAR levels.