Matthias Liebrand, Michael Rebsamen, Akari Nakamura-Utsunomiya, Luisa von den Driesch, Patrick Köck, Julien Caccia, Christoph Hamann, Roland Wiest, Michael Kaess, Sebastian Walther, Sibylle Tschumi, Takeshi Y Hiyama, Jochen Kindler
This is the first description of a patient in which adipsic hypernatremia, a rare autoimmune encephalitis, presented in combination with complex psychiatric symptomatology, including psychosis and catatonia. Adipsic hypernatremia is characterized by autoantibodies against the thirst center of the brain. These autoantibodies cause inflammation and apoptosis in key regions of water homeostasis, leading to lack of thirst and highly increased serum sodium. To date, the symptoms of weakness, fatigue and drowsiness have been associated with adipsic hypernatremia, but no psychiatric symptomatology...
2023: Frontiers in Psychiatry