The Possible Link between GABAergic Dysfunction and Cognitive Decline in a Patient with Idiopathic Hypoparathyroidism

Internal Medicine
Tatsuhiro TeradaYasuomi Ouchi

Abstract

Idiopathic hypoparathyroidism (IHP) is accompanied by cognitive impairment. We report the case of a 70-year-old IHP patient with cognitive disturbance. Brain computed tomography showed bilateral calcification in basal ganglia, thalamus, and cerebellum. Neuropsychological assessment revealed low scores for intelligence, memory, and perseverative errors. Brain positron emission tomography showed a significant reduction in [(18)F]-Fludeoxyglucose (FDG) uptake in bilateral frontal, left temporal and parietal cortices, along with a marked reduction in [(11)C]-flumazenil binding in left frontal, temporal, parietal, and bilateral cerebellum. These findings suggest cognitive impairment in IHP may be ascribed to GABAergic dysfunction, thus leading to, or coexisting with, cerebral hypometabolism.

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Citations

Apr 4, 2020·ESC Heart Failure·Martin VálekTomáš Paleček
Sep 15, 2020·Journal of Endocrinological Investigation·A SardellaA Catalano
May 20, 2019·Journal of Alzheimer's Disease : JAD·Tomoyasu BunaiYasuomi Ouchi

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