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Gallet Q, Bouteloup V, Locatelli M, Habert MO, Chupin M, Campion JY, Michels PE, Delrieu J, Lebouvier T, Balageas AC, Surget A, Belzung C, Arlicot N, Ribeiro MJS, Gissot V, El-Hage W, Camus V, Gohier B, Desmidt T. Cerebral Metabolic Signature of Chronic Benzodiazepine Use in Nondemented Older Adults: An FDG-PET Study in the MEMENTO Cohort. Am J Geriatr Psychiatry 2024; 32:665-677. [PMID: 37973486 DOI: 10.1016/j.jagp.2023.10.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Revised: 10/09/2023] [Accepted: 10/09/2023] [Indexed: 11/19/2023]
Abstract
OBJECTIVE We sought to examine the association between chronic Benzodiazepine (BZD) use and brain metabolism obtained from 2-deoxy-2-fluoro-D-glucose (FDG) positron emission tomography (PET) in the MEMENTO clinical cohort of nondemented older adults with an isolated memory complaint or mild cognitive impairment at baseline. METHODS Our analysis focused on 3 levels: (1) the global mean brain standardized uptake value (SUVR), (2) the Alzheimer's disease (AD)-specific regions of interest (ROIs), and (3) the ratio of total SUVR on the brain and different anatomical ROIs. Cerebral metabolism was obtained from 2-deoxy-2-fluoro-D-glucose-FDG-PET and compared between chronic BZD users and nonusers using multiple linear regressions adjusted for age, sex, education, APOE ε 4 copy number, cognitive and neuropsychiatric assessments, history of major depressive episodes and antidepressant use. RESULTS We found that the SUVR was significantly higher in chronic BZD users (n = 192) than in nonusers (n = 1,122) in the whole brain (beta = 0.03; p = 0.038) and in the right amygdala (beta = 0.32; p = 0.012). Trends were observed for the half-lives of BZDs (short- and long-acting BZDs) (p = 0.051) and Z-drug hypnotic treatments (p = 0.060) on the SUVR of the right amygdala. We found no significant association in the other ROIs. CONCLUSION Our study is the first to find a greater global metabolism in chronic BZD users and a specific greater metabolism in the right amygdala. Because the acute administration of BZDs tends to reduce brain metabolism, these findings may correspond to a compensatory mechanism while the brain adapts with global metabolism upregulation, with a specific focus on the right amygdala.
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Affiliation(s)
- Quentin Gallet
- Department of Psychiatry, University Hospital, Angers, France
| | - Vincent Bouteloup
- Centre Inserm U1219 Bordeaux Population Health, CIC1401-EC, Institut de Santé Publique, d'Epidémiologie et de Développement, Université de Bordeaux, CHU de Bordeaux, Pôle Santé Publique, Bordeaux, France
| | - Maxime Locatelli
- CATI, US52-UAR2031, CEA, ICM, Sorbonne Université, CNRS, INSERM, APHP, Ile de France, France; Paris Brain Institute - Institut du Cerveau (ICM), CNRS UMR 7225, INSERM, U 1127, Sorbonne Université F-75013, Paris, France; Sorbonne Université, CNRS, INSERM, Laboratoire d'Imagerie Biomédicale, LIB, F-75006, Paris, France
| | - Marie-Odile Habert
- CATI, US52-UAR2031, CEA, ICM, Sorbonne Université, CNRS, INSERM, APHP, Ile de France, France; Sorbonne Université, CNRS, INSERM, Laboratoire d'Imagerie Biomédicale, LIB, F-75006, Paris, France; Service de médecine nucléaire, Hôpital Pitié-Salpêtrière, APHP, Paris 75013, France
| | - Marie Chupin
- CATI, US52-UAR2031, CEA, ICM, Sorbonne Université, CNRS, INSERM, APHP, Ile de France, France; Paris Brain Institute - Institut du Cerveau (ICM), CNRS UMR 7225, INSERM, U 1127, Sorbonne Université F-75013, Paris, France
| | | | | | - Julien Delrieu
- Gérontopôle, Department of Geriatrics, CHU Toulouse, Purpan University Hospital, Toulouse, France; UMR1027, Université de Toulouse, UPS, INSERM, Toulouse, France
| | | | | | | | | | - Nicolas Arlicot
- UMR 1253, iBrain, Université de Tours, INSERM, Tours, France; CIC 1415, Université de Tours, INSERM, Tours, France
| | - Maria-Joao Santiago Ribeiro
- CHU de Tours, Tours, France; UMR 1253, iBrain, Université de Tours, INSERM, Tours, France; CIC 1415, Université de Tours, INSERM, Tours, France
| | - Valérie Gissot
- CHU de Tours, Tours, France; UMR 1253, iBrain, Université de Tours, INSERM, Tours, France
| | - Wissam El-Hage
- CHU de Tours, Tours, France; UMR 1253, iBrain, Université de Tours, INSERM, Tours, France; CIC 1415, Université de Tours, INSERM, Tours, France
| | - Vincent Camus
- CHU de Tours, Tours, France; UMR 1253, iBrain, Université de Tours, INSERM, Tours, France
| | - Bénédicte Gohier
- Department of Psychiatry, University Hospital, Angers, France; Université d'Angers, Université de Nantes, LPPL, SFR CONFLUENCES, F-49000 Angers, France
| | - Thomas Desmidt
- CHU de Tours, Tours, France; UMR 1253, iBrain, Université de Tours, INSERM, Tours, France.
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Wang H, Xie X, Duan Y, Chai L, Li K, Qiu J, Cheng Z. Rabbit systemic glucose metabolism map by total-body dynamic PET/CT technology. Nucl Med Commun 2023; 44:1144-1150. [PMID: 37706260 PMCID: PMC10631506 DOI: 10.1097/mnm.0000000000001767] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2023] [Accepted: 08/30/2023] [Indexed: 09/15/2023]
Abstract
BACKGROUND This study evaluated total-body glucose metabolism in a preclinical lab animal, the rabbit, by employing a dynamic glucose metabolic image obtained with total-body fluorine-18 fluorodeoxyglucose ( 18 F-FDG) PET/computed tomography (PET/CT). METHODS The dynamic total-body PET/CT system was used to obtain glucose metabolic imaging from 10 sedated body-matched rabbits. The standard uptake value (SUV) of 18 F-FDG was used to evaluate glucose metabolism. In addition, the correlation between glucose metabolism and sexes was assessed, as well as metabolic differences between left- and right sides. RESULTS We found significant distribution heterogeneity of glucose in several organs across the entire body. There were no significant metabolic differences between sexes and between bilateral sides in the 10 rabbits. Thereafter, we assayed the major organ SUV changes by dynamic PET/CT of the major organs. The heart, liver, and urinary system showed more 18 F-FDG, whereas the skeletal muscle, brain, spinal cord, and lungs incorporated less 18 F-FDG. The phenotype of 18 F-FDG uptake was highly correlated with the physiological functions. The 18 F-FDG accumulation in urinary system were observed which could reflect the renal parenchyma glucose metabolism indirectly. However, the low 18 F-FDG uptake in the brain and spinal cord was due to sedation. CONCLUSION The total-body glucose metabolic atlas depicted with 18 F-FDG dynamic PET/CT may be used as a reference for assessing pathological 18 F-FDG uptake. Furthermore, this study could be a reference for preclinical research involving abnormality of glucose metabolism.
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Affiliation(s)
- Haochen Wang
- Department of General Surgery, the First Affiliated Hospital of Shandong First Medical University
| | - Xue Xie
- Science and Technology Innovation Center, Shandong First Medical University & Shandong Academy of Medical Sciences and
| | - Yanhua Duan
- Department of Nuclear Medicine, the First Affiliated Hospital of Shandong First Medical University, Jinan, Shandong Province, China
| | - Leiying Chai
- Department of Nuclear Medicine, the First Affiliated Hospital of Shandong First Medical University, Jinan, Shandong Province, China
| | - Kun Li
- Department of Nuclear Medicine, the First Affiliated Hospital of Shandong First Medical University, Jinan, Shandong Province, China
| | - Jianfeng Qiu
- Science and Technology Innovation Center, Shandong First Medical University & Shandong Academy of Medical Sciences and
| | - Zhaoping Cheng
- Department of Nuclear Medicine, the First Affiliated Hospital of Shandong First Medical University, Jinan, Shandong Province, China
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Müller L, Power Guerra N, Stenzel J, Rühlmann C, Lindner T, Krause BJ, Vollmar B, Teipel S, Kuhla A. Long-Term Caloric Restriction Attenuates β-Amyloid Neuropathology and Is Accompanied by Autophagy in APPswe/PS1delta9 Mice. Nutrients 2021; 13:nu13030985. [PMID: 33803798 PMCID: PMC8003277 DOI: 10.3390/nu13030985] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Revised: 03/09/2021] [Accepted: 03/16/2021] [Indexed: 12/14/2022] Open
Abstract
Caloric restriction (CR) slows the aging process, extends lifespan, and exerts neuroprotective effects. It is widely accepted that CR attenuates β-amyloid (Aβ) neuropathology in models of Alzheimer's disease (AD) by so-far unknown mechanisms. One promising process induced by CR is autophagy, which is known to degrade aggregated proteins such as amyloids. In addition, autophagy positively regulates glucose uptake and may improve cerebral hypometabolism-a hallmark of AD-and, consequently, neural activity. To evaluate this hypothesis, APPswe/PS1delta9 (tg) mice and their littermates (wild-type, wt) underwent CR for either 16 or 68 weeks. Whereas short-term CR for 16 weeks revealed no noteworthy changes of AD phenotype in tg mice, long-term CR for 68 weeks showed beneficial effects. Thus, cerebral glucose metabolism and neuronal integrity were markedly increased upon 68 weeks CR in tg mice, indicated by an elevated hippocampal fluorodeoxyglucose [18F] ([18F]FDG) uptake and increased N-acetylaspartate-to-creatine ratio using positron emission tomography/computer tomography (PET/CT) imaging and magnet resonance spectroscopy (MRS). Improved neuronal activity and integrity resulted in a better cognitive performance within the Morris Water Maze. Moreover, CR for 68 weeks caused a significant increase of LC3BII and p62 protein expression, showing enhanced autophagy. Additionally, a significant decrease of Aβ plaques in tg mice in the hippocampus was observed, accompanied by reduced microgliosis as indicated by significantly decreased numbers of iba1-positive cells. In summary, long-term CR revealed an overall neuroprotective effect in tg mice. Further, this study shows, for the first time, that CR-induced autophagy in tg mice accompanies the observed attenuation of Aβ pathology.
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Affiliation(s)
- Luisa Müller
- Rudolf-Zenker-Institute for Experimental Surgery, Medical University Rostock, 18057 Rostock, Germany; (L.M.); (N.P.G.); (C.R.); (B.V.)
- Department of Psychosomatic Medicine and Psychotherapy, University of Rostock, 18147 Rostock, Germany;
- Centre for Transdisciplinary Neurosciences Rostock (CTNR), University of Rostock, 18147 Rostock, Germany
| | - Nicole Power Guerra
- Rudolf-Zenker-Institute for Experimental Surgery, Medical University Rostock, 18057 Rostock, Germany; (L.M.); (N.P.G.); (C.R.); (B.V.)
| | - Jan Stenzel
- Core Facility Multimodal Small Animal Imaging, Rostock University Medical Center, 18057 Rostock, Germany; (J.S.); (T.L.); (B.J.K.)
| | - Claire Rühlmann
- Rudolf-Zenker-Institute for Experimental Surgery, Medical University Rostock, 18057 Rostock, Germany; (L.M.); (N.P.G.); (C.R.); (B.V.)
| | - Tobias Lindner
- Core Facility Multimodal Small Animal Imaging, Rostock University Medical Center, 18057 Rostock, Germany; (J.S.); (T.L.); (B.J.K.)
| | - Bernd J. Krause
- Core Facility Multimodal Small Animal Imaging, Rostock University Medical Center, 18057 Rostock, Germany; (J.S.); (T.L.); (B.J.K.)
- Department of Nuclear Medicine, Rostock University Medical Center, 18057 Rostock, Germany
| | - Brigitte Vollmar
- Rudolf-Zenker-Institute for Experimental Surgery, Medical University Rostock, 18057 Rostock, Germany; (L.M.); (N.P.G.); (C.R.); (B.V.)
- Core Facility Multimodal Small Animal Imaging, Rostock University Medical Center, 18057 Rostock, Germany; (J.S.); (T.L.); (B.J.K.)
| | - Stefan Teipel
- Department of Psychosomatic Medicine and Psychotherapy, University of Rostock, 18147 Rostock, Germany;
- Centre for Transdisciplinary Neurosciences Rostock (CTNR), University of Rostock, 18147 Rostock, Germany
- German Center for Neurodegenerative Diseases (DZNE)–Rostock/Greifswald, 18147 Rostock and 17489 Greifswald, Germany
| | - Angela Kuhla
- Rudolf-Zenker-Institute for Experimental Surgery, Medical University Rostock, 18057 Rostock, Germany; (L.M.); (N.P.G.); (C.R.); (B.V.)
- Centre for Transdisciplinary Neurosciences Rostock (CTNR), University of Rostock, 18147 Rostock, Germany
- Correspondence: ; Tel.: +49-381-494-2503
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