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Profile image of Lotje D De Witte

    Lotje D De Witte, MD, PhD

    Research

    Antibodies that bind to synaptic proteins can cause autoimmune encephalitis and this can lead to prominent psychiatric symptoms. A clear example is anti-N-methyl-D-aspartate receptor (NMDAR) encephalitis, which is caused by auto-antibodies to one of the subunits of the NMDA receptor. Dr. de Witte studies whether subgroups of patients with psychiatric disorders may have an underlying autoimmune disease caused by neuronal auto-antibodies. Her studies on blood samples of patients with schizophrenia or bipolar disorders indicate that the presence of these auto-antibodies is very rare. She is now involved in validating these findings in cerebrospinal fluid.