title: Cognitive impairment and its association with homocysteine plasma levels in females with eating disorders - findings from the HEaD-study.
abstract: Higher plasma homocysteine levels have been found in females with anorexia nervosa. Furthermore, elevated homocysteine levels are associated with cognitive decline in dementia and healthy elderly people. Aim of this prospective study was to investigate a possible association between homocysteine serum levels and Clinically well known cognitive deficits in females with eating disorders. We found that moderately elevated plasma homocysteine levels were associated with normal short- and long-term verbal memory while normal plasma homocysteine levels were associated with poorer memory performance in 14 females with anorexia nervosa and 12 females with bulimia nervosa (logistic forward regression Wald chi(2)=8.566, OR=24.75, CI 2.89 - 212.23, P=0.003). These results indicate that under the special circumstances of eating disorders elevated homocysteine levels improve memory signaling possibly by facilitating long-term potentiation.
authors.affiliation: Department of Psychiatry and Psychotherapy, University Erlangen-Nuremberg, Bad Oeynhausen, Germany. helge.frieling@psych.imed.uni-rlangen.de
authors.forename: H
authors.initials: H
authors.lastname: Frieling
authors.forename: B
authors.initials: B
authors.lastname: Röschke
authors.forename: J
authors.initials: J
authors.lastname: Kornhuber
authors.forename: J
authors.initials: J
authors.lastname: Wilhelm
authors.forename: K D
authors.initials: KD
authors.lastname: Römer
authors.forename: B
authors.initials: B
authors.lastname: Gruss
authors.forename: D
authors.initials: D
authors.lastname: Bönsch
authors.forename: T
authors.initials: T
authors.lastname: Hillemacher
authors.forename: M
authors.initials: M
authors.lastname: de Zwaan
authors.forename: G E
authors.initials: GE
authors.lastname: Jacoby
authors.forename: S
authors.initials: S
authors.lastname: Bleich
mesh_terms: D000293:Adolescent; D000328:Adult; D000856:Anorexia Nervosa / Q000097:blood / Q000150:complications / Q000523:psychology; D001921:Brain / Q000378:metabolism / Q000503:physiopathology; D001923:Brain Chemistry / Q000502:physiology; D052018:Bulimia Nervosa / Q000097:blood / Q000150:complications / Q000523:psychology; D016022:Case-Control Studies; D003072:Cognition Disorders / Q000097:blood* / Q000209:etiology* / Q000503:physiopathology; D001068:Feeding and Eating Disorders / Q000097:blood* / Q000150:complications* / Q000523:psychology; D005260:Female; D006710:Homocysteine / Q000097:blood*; D006801:Humans; D017774:Long-Term Potentiation / Q000502:physiology; D008568:Memory / Q000502:physiology; D008569:Memory Disorders / Q000097:blood / Q000209:etiology / Q000503:physiopathology; D008875:Middle Aged; D009483:Neuropsychological Tests; D011446:Prospective Studies; D016194:Receptors, N-Methyl-D-Aspartate / Q000378:metabolism; D012737:Sex Factors; D009435:Synaptic Transmission / Q000502:physiology; D015854:Up-Regulation / Q000502:physiology*
chemical_list: D016194:Receptors, N-Methyl-D-Aspartate; D006710:Homocysteine