PMID- 30397594 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20240403 IS - 2296-9209 (Print) IS - 2296-9179 (Electronic) IS - 2296-9179 (Linking) VI - 4 IP - 2 DP - 2018 Oct TI - Attenuated Mismatch Negativity in Attenuated Psychosis Syndrome Predicts Psychosis: Can Galantamine-Memantine Combination Prevent Psychosis? PG - 71-74 LID - 10.1159/000488797 [doi] AB - Although first proposed in 1987, early diagnosis and intervention of psychotic disorders has only recently become a priority in the field. The interest in clinical high risk (CHR) for psychosis skyrocketed after attenuated psychosis syndrome (APS) was added to the DSM-5. There is evidence that in individuals with APS, attenuated mismatch negativity (MMN: functioning of the auditory sensory memory system) is a robust biomarker that can predict transition to psychosis. The underlying pathophysiological mechanism of MMN is via the interaction of N-methyl-D-aspartate (NMDA) and alpha-7 nicotinic acetylcholine (alpha-7nACh) receptors. Galantamine is an acetylcholinesterase inhibitor and a positive allosteric modulator of the alpha-7nACh receptors. Memantine is an NMDA receptor antagonist. Memantine has been shown to enhance MMN in people with schizophrenia. Although no studies with galantamine have measured MMN, encenicline, an alpha-7 nicotinic partial agonist, increased MMN in people with schizophrenia. MMN has been suggested as a potential biomarker with the galantamine-memantine combination for the treatment of neuropsychiatric disorders. Hence, the galantamine-memantine combination may enhance MMN, thereby preventing CHR to psychosis. With no treatments available, randomized controlled trials are warranted with the galantamine-memantine combination to delay or prevent conversion to psychosis in individuals with CHR. FAU - Koola, Maju Mathew AU - Koola MM AD - Department of Psychiatry and Behavioral Sciences, George Washington University School of Medicine and Health Sciences, Washington, District of Columbia, USA. LA - eng PT - Journal Article DEP - 20180607 PL - Switzerland TA - Mol Neuropsychiatry JT - Molecular neuropsychiatry JID - 101649121 PMC - PMC6206967 OTO - NOTNLM OT - Attenuated psychosis syndrome OT - Biomarker OT - Clinical high risk OT - Galantamine OT - Kynurenic acid OT - Memantine OT - Mismatch negativity EDAT- 2018/11/07 06:00 MHDA- 2018/11/07 06:01 PMCR- 2019/10/01 CRDT- 2018/11/07 06:00 PHST- 2018/01/16 00:00 [received] PHST- 2018/03/26 00:00 [accepted] PHST- 2018/11/07 06:00 [entrez] PHST- 2018/11/07 06:00 [pubmed] PHST- 2018/11/07 06:01 [medline] PHST- 2019/10/01 00:00 [pmc-release] AID - mnp-0004-0071 [pii] AID - 10.1159/000488797 [doi] PST - ppublish SO - Mol Neuropsychiatry. 2018 Oct;4(2):71-74. doi: 10.1159/000488797. Epub 2018 Jun 7.