Use of18F-ASEM PET to determine the availability of the a7-nicotinic acetylcholine receptor in recent-onset psychosis

Research output: Contribution to journalArticle

Abstract

Limited postmortem evidence suggests a diminished availability of the α7 -nicotinic acetylcholine receptor (α7-nAChR) in the hippocampus in psychosis. Methods: In this cross-sectional study, we used PET with18F-ASEM (18F-JHU82132; 3-(1,4-diazabicyclo[3.2.2] nonan-4-yl)-6-[18F]fluorodibenzo[b,d]thiophene 5,5-dioxide), a radiotracer targeting the α7-nAChR, to compare the binding of18F-ASEM in the hippocampus of individuals who had recent-onset psychosis with that in healthy controls. Results: Individuals with recent-onset psychosis (nonaffective psychosis or affective psychosis), particularly those with nonaffective psychosis, showed lower hippocampal binding of18F-ASEM than healthy controls. Among patients, lower binding was associated with lower performance in 2 cognitive domains after controlling for age. Conclusion: Low availability of the α7-nAChR in the hippocampus may be linked to recent-onset psychosis. Further study is needed to assess its clinical relationship to neuropsychiatric symptoms.

Original languageEnglish (US)
Pages (from-to)241-243
Number of pages3
JournalJournal of Nuclear Medicine
Volume60
Issue number2
DOIs
StatePublished - Feb 1 2019

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Nicotinic Receptors
Psychotic Disorders
Hippocampus
Psychotic Affective Disorders
Cross-Sectional Studies

Keywords

  • 18F-ASEM
  • Hippocampus
  • PET
  • Recent-onset psychosis
  • Α7-nicotinic acetylcholine receptor

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging

Cite this

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title = "Use of18F-ASEM PET to determine the availability of the a7-nicotinic acetylcholine receptor in recent-onset psychosis",
abstract = "Limited postmortem evidence suggests a diminished availability of the α7 -nicotinic acetylcholine receptor (α7-nAChR) in the hippocampus in psychosis. Methods: In this cross-sectional study, we used PET with18F-ASEM (18F-JHU82132; 3-(1,4-diazabicyclo[3.2.2] nonan-4-yl)-6-[18F]fluorodibenzo[b,d]thiophene 5,5-dioxide), a radiotracer targeting the α7-nAChR, to compare the binding of18F-ASEM in the hippocampus of individuals who had recent-onset psychosis with that in healthy controls. Results: Individuals with recent-onset psychosis (nonaffective psychosis or affective psychosis), particularly those with nonaffective psychosis, showed lower hippocampal binding of18F-ASEM than healthy controls. Among patients, lower binding was associated with lower performance in 2 cognitive domains after controlling for age. Conclusion: Low availability of the α7-nAChR in the hippocampus may be linked to recent-onset psychosis. Further study is needed to assess its clinical relationship to neuropsychiatric symptoms.",
keywords = "18F-ASEM, Hippocampus, PET, Recent-onset psychosis, Α7-nicotinic acetylcholine receptor",
author = "Coughlin, {Jennifer Marie} and Yong Du and Crawford, {Jeffrey L.} and Leah Rubin and {Behnam Azad}, Babak and Wojciech Lesniak and Andrew Horti and David Schretlen and Akira Sawa and Pomper, {Martin Gilbert}",
year = "2019",
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T1 - Use of18F-ASEM PET to determine the availability of the a7-nicotinic acetylcholine receptor in recent-onset psychosis

AU - Coughlin, Jennifer Marie

AU - Du, Yong

AU - Crawford, Jeffrey L.

AU - Rubin, Leah

AU - Behnam Azad, Babak

AU - Lesniak, Wojciech

AU - Horti, Andrew

AU - Schretlen, David

AU - Sawa, Akira

AU - Pomper, Martin Gilbert

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N2 - Limited postmortem evidence suggests a diminished availability of the α7 -nicotinic acetylcholine receptor (α7-nAChR) in the hippocampus in psychosis. Methods: In this cross-sectional study, we used PET with18F-ASEM (18F-JHU82132; 3-(1,4-diazabicyclo[3.2.2] nonan-4-yl)-6-[18F]fluorodibenzo[b,d]thiophene 5,5-dioxide), a radiotracer targeting the α7-nAChR, to compare the binding of18F-ASEM in the hippocampus of individuals who had recent-onset psychosis with that in healthy controls. Results: Individuals with recent-onset psychosis (nonaffective psychosis or affective psychosis), particularly those with nonaffective psychosis, showed lower hippocampal binding of18F-ASEM than healthy controls. Among patients, lower binding was associated with lower performance in 2 cognitive domains after controlling for age. Conclusion: Low availability of the α7-nAChR in the hippocampus may be linked to recent-onset psychosis. Further study is needed to assess its clinical relationship to neuropsychiatric symptoms.

AB - Limited postmortem evidence suggests a diminished availability of the α7 -nicotinic acetylcholine receptor (α7-nAChR) in the hippocampus in psychosis. Methods: In this cross-sectional study, we used PET with18F-ASEM (18F-JHU82132; 3-(1,4-diazabicyclo[3.2.2] nonan-4-yl)-6-[18F]fluorodibenzo[b,d]thiophene 5,5-dioxide), a radiotracer targeting the α7-nAChR, to compare the binding of18F-ASEM in the hippocampus of individuals who had recent-onset psychosis with that in healthy controls. Results: Individuals with recent-onset psychosis (nonaffective psychosis or affective psychosis), particularly those with nonaffective psychosis, showed lower hippocampal binding of18F-ASEM than healthy controls. Among patients, lower binding was associated with lower performance in 2 cognitive domains after controlling for age. Conclusion: Low availability of the α7-nAChR in the hippocampus may be linked to recent-onset psychosis. Further study is needed to assess its clinical relationship to neuropsychiatric symptoms.

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