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Cirillo R, Duperrier S, Parekh P, Millot M, Li Q, Thiolat ML, Morelli M, Xie J, Le Bars D, Redouté J, Bezard E, Sgambato V. Striatal Serotonin 4 Receptor is Increased in Experimental Parkinsonism and Dyskinesia. JOURNAL OF PARKINSON'S DISEASE 2024; 14:261-267. [PMID: 38339940 PMCID: PMC10977406 DOI: 10.3233/jpd-230331] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 01/07/2024] [Indexed: 02/12/2024]
Abstract
Alterations of serotonin type 4 receptor levels are linked to mood disorders and cognitive deficits in several conditions. However, few studies have investigated 5-HT4R alterations in movement disorders. We wondered whether striatal 5-HT4R expression is altered in experimental parkinsonism. We used a brain bank tissue from a rat and a macaque model of Parkinson's disease (PD). We then investigated its in vivo PET imaging regulation in a cohort of macaques. Dopaminergic depletion increases striatal 5-HT4R in the two models, further augmented after dyskinesia-inducing L-Dopa. Pending confirmation in PD patients, the 5-HT4R might offer a therapeutic target for dampening PD's symptoms.
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Affiliation(s)
- Rossella Cirillo
- Institut des Sciences Cognitives Marc Jeannerod (ISCMJ), Unité Mixte de Recherche 5229 du Centre National de la Recherche Scientifique (CNRS), Bron, France
- Universitè de Lyon 1, Lyon, France
| | - Sandra Duperrier
- Institut des Sciences Cognitives Marc Jeannerod (ISCMJ), Unité Mixte de Recherche 5229 du Centre National de la Recherche Scientifique (CNRS), Bron, France
- Universitè de Lyon 1, Lyon, France
| | - Pathik Parekh
- Institut des Sciences Cognitives Marc Jeannerod (ISCMJ), Unité Mixte de Recherche 5229 du Centre National de la Recherche Scientifique (CNRS), Bron, France
- Universitè de Lyon 1, Lyon, France
- Department of Biomedical Sciences, Section of Neuroscience, University of Cagliari, Monserrato, Italy
| | - Mathilde Millot
- Institut des Sciences Cognitives Marc Jeannerod (ISCMJ), Unité Mixte de Recherche 5229 du Centre National de la Recherche Scientifique (CNRS), Bron, France
- Universitè de Lyon 1, Lyon, France
| | - Qin Li
- Motac Beijing Services, Beijing, China
| | - Marie-Laure Thiolat
- Universitè de Bordeaux, Institut des Maladies Neurodégénératives, Bordeaux, France
- CNRS, Institut des Maladies Neurodégénératives, Bordeaux, France
| | - Micaela Morelli
- Department of Biomedical Sciences, Section of Neuroscience, University of Cagliari, Monserrato, Italy
| | - Jing Xie
- Institut des Sciences Cognitives Marc Jeannerod (ISCMJ), Unité Mixte de Recherche 5229 du Centre National de la Recherche Scientifique (CNRS), Bron, France
- Institut du Vieillissement, Centrede Recherche Clinique Vieillissement Cerveau Fragilité, Hôpital des Charpennes, Villeurbanne, France
| | | | | | - Erwan Bezard
- Motac Beijing Services, Beijing, China
- Universitè de Bordeaux, Institut des Maladies Neurodégénératives, Bordeaux, France
- CNRS, Institut des Maladies Neurodégénératives, Bordeaux, France
| | - Véronique Sgambato
- Institut des Sciences Cognitives Marc Jeannerod (ISCMJ), Unité Mixte de Recherche 5229 du Centre National de la Recherche Scientifique (CNRS), Bron, France
- Universitè de Lyon 1, Lyon, France
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Li Q, Hu Q, Tang J, Fang Y, Liu C, Liu J, Qi M, Chen Z, Zhang L. Deuterated [ 18F]fluoroethyl tropane analogs as dopamine transporter probes: Synthesis and biological evaluation. Nucl Med Biol 2023; 118-119:108334. [PMID: 37028197 DOI: 10.1016/j.nucmedbio.2023.108334] [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: 12/15/2022] [Revised: 03/07/2023] [Accepted: 03/21/2023] [Indexed: 03/29/2023]
Abstract
INTRODUCTION The dopamine transporter (DAT) is vitally correlated with Parkinson's disease (PD) and other neurodegenerative diseases. Non-invasive imaging of DAT contributes to early diagnosis and monitoring of related diseases. Recently, we reported a deuterated [18F]fluoroethyl tropane analogue [18F]FECNT-d4 as a potential DAT PET imaging agent. The objective of this work was to extend the investigation by comparing four deuterated [18F]fluoroethyl tropane derivatives ([18F]2a-d) to develop metabolically stable DAT radioligands. METHODS Four fluoroethyl substituted phenyl-tropane compounds 1a-d and deuterated compounds 2a-d were synthesized and their IC50 values to DAT were evaluated. The [18F]fluoroethyl ligands [18F]1a-d and [18F]2a-d were obtained from corresponding labeling precursors by one-step radio-labeling reactions and investigated in terms of lipophilicity and in vitro binding affinity studies. [18F]1d and [18F]2d were then selected for further evaluations by in vivo metabolism study, biodistribution, ex vivo autoradiography, and microPET imaging studies. RESULTS [18F]1a-d and [18F]2a-d were obtained in radiochemical yield of 11-32 % with molar activities of 28-54 GBq/μmol. The 1d and 2d exhibited relatively high affinity to DAT (IC50: 1.9-2.1 nM). Ex vivo autoradiography and microPET studies showed that [18F]2d selectively localized on DAT-rich striatal regions and the specific signal could be blocked by DAT inhibitor. Biodistribution results showed that [18F]2d consistently exhibited a higher ratio of the target to non-target (striatum/cerebellum) than [18F]1d. Furthermore, metabolism study indicated that the in vivo metabolic stability of [18F]2d was superior to that of [18F]1d. CONCLUSION Our findings suggested that the deuterated compound [18F]2d might be a potential probe for DAT PET imaging in the brain.
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Affiliation(s)
- Qingming Li
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, School of Pharmacy, Xuzhou Medical University, Xuzhou 221004, China
| | - Qianyue Hu
- NHC Key Laboratory of Nuclear Medicine, Jiangsu Key Laboratory of Molecular Nuclear Medicine, Jiangsu Institute of Nuclear Medicine, Wuxi 214063, China; Department of Radiopharmaceuticals, School of Pharmacy, Nanjing Medical University, Nanjing 211166, China
| | - Jie Tang
- NHC Key Laboratory of Nuclear Medicine, Jiangsu Key Laboratory of Molecular Nuclear Medicine, Jiangsu Institute of Nuclear Medicine, Wuxi 214063, China
| | - Yi Fang
- NHC Key Laboratory of Nuclear Medicine, Jiangsu Key Laboratory of Molecular Nuclear Medicine, Jiangsu Institute of Nuclear Medicine, Wuxi 214063, China
| | - Chunyi Liu
- NHC Key Laboratory of Nuclear Medicine, Jiangsu Key Laboratory of Molecular Nuclear Medicine, Jiangsu Institute of Nuclear Medicine, Wuxi 214063, China
| | - Jie Liu
- NHC Key Laboratory of Nuclear Medicine, Jiangsu Key Laboratory of Molecular Nuclear Medicine, Jiangsu Institute of Nuclear Medicine, Wuxi 214063, China; Department of Radiopharmaceuticals, School of Pharmacy, Nanjing Medical University, Nanjing 211166, China
| | - Meihui Qi
- NHC Key Laboratory of Nuclear Medicine, Jiangsu Key Laboratory of Molecular Nuclear Medicine, Jiangsu Institute of Nuclear Medicine, Wuxi 214063, China; School of Pharmaceutical Science, Inner Mongolia Medical University, Hohhot 010110, China
| | - Zhengping Chen
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, School of Pharmacy, Xuzhou Medical University, Xuzhou 221004, China; NHC Key Laboratory of Nuclear Medicine, Jiangsu Key Laboratory of Molecular Nuclear Medicine, Jiangsu Institute of Nuclear Medicine, Wuxi 214063, China; Department of Radiopharmaceuticals, School of Pharmacy, Nanjing Medical University, Nanjing 211166, China; School of Pharmaceutical Science, Inner Mongolia Medical University, Hohhot 010110, China.
| | - Ling Zhang
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, School of Pharmacy, Xuzhou Medical University, Xuzhou 221004, China.
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Sun X, Kato H, Sato H, Han X, Hirofuji Y, Kato TA, Sakai Y, Ohga S, Fukumoto S, Masuda K. Dopamine-related oxidative stress and mitochondrial dysfunction in dopaminergic neurons differentiated from deciduous teeth-derived stem cells of children with Down syndrome. FASEB Bioadv 2022; 4:454-467. [PMID: 35812076 PMCID: PMC9254221 DOI: 10.1096/fba.2021-00086] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Revised: 02/17/2022] [Accepted: 03/14/2022] [Indexed: 12/24/2022] Open
Abstract
Down syndrome (DS) is one of the common genetic disorders caused by the trisomy of human chromosome 21 (HSA21). Mitochondrial dysfunction and redox imbalance play important roles in DS pathology, and altered dopaminergic regulation has been demonstrated in the brain of individuals with DS. However, the pathological association of these elements is not yet fully understood. In this study, we analyzed dopaminergic neurons (DNs) differentiated from deciduous teeth-derived stem cells of children with DS or healthy control children. As previously observed in the analysis of a single case of DS, compared to controls, patient-derived DNs (DS-DNs) displayed shorter neurite outgrowth and fewer branches, as well as downregulated vesicular monoamine transporter 2 and upregulated dopamine transporter 1, both of which are key regulators of dopamine homeostasis in DNs. In agreement with these expression profiles, DS-DNs accumulated dopamine intracellularly and had increased levels of cellular and mitochondrial reactive oxygen species (ROS). DS-DNs showed downregulation of non-canonical Notch ligand, delta-like 1, which may contribute to dopamine accumulation and increased ROS levels through DAT1 upregulation. Furthermore, DS-DNs showed mitochondrial dysfunction in consistent with lower expression of peroxisome proliferator-activated receptor-gamma coactivator 1 alpha (PGC-1α) and upregulation of a HSA21-encoded negative regulator of PGC-1α, nuclear receptor-interacting protein 1. These results suggest that dysregulated dopamine homeostasis may participate in oxidative stress and mitochondrial dysfunction of the dopaminergic system in DS.
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Affiliation(s)
- Xiao Sun
- Section of Oral Medicine for Children, Division of Oral Health, Growth and DevelopmentFaculty of Dental Science, Kyushu UniversityFukuokaJapan
| | - Hiroki Kato
- Department of Molecular Cell Biology and Oral AnatomyKyushu University Graduate School of Dental ScienceFukuokaJapan
| | - Hiroshi Sato
- Section of Oral Medicine for Children, Division of Oral Health, Growth and DevelopmentFaculty of Dental Science, Kyushu UniversityFukuokaJapan
| | - Xu Han
- Section of Oral Medicine for Children, Division of Oral Health, Growth and DevelopmentFaculty of Dental Science, Kyushu UniversityFukuokaJapan
| | - Yuta Hirofuji
- Section of Oral Medicine for Children, Division of Oral Health, Growth and DevelopmentFaculty of Dental Science, Kyushu UniversityFukuokaJapan
| | - Takahiro A. Kato
- Department of NeuropsychiatryGraduate School of Medical Sciences, Kyushu UniversityFukuokaJapan
| | - Yasunari Sakai
- Department of Pediatrics, Graduate School of Medical SciencesKyushu UniversityFukuokaJapan
| | - Shouichi Ohga
- Department of Pediatrics, Graduate School of Medical SciencesKyushu UniversityFukuokaJapan
| | - Satoshi Fukumoto
- Section of Oral Medicine for Children, Division of Oral Health, Growth and DevelopmentFaculty of Dental Science, Kyushu UniversityFukuokaJapan
| | - Keiji Masuda
- Section of Oral Medicine for Children, Division of Oral Health, Growth and DevelopmentFaculty of Dental Science, Kyushu UniversityFukuokaJapan
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Functional Imaging for Neurodegenerative Diseases. Presse Med 2022; 51:104121. [PMID: 35490910 DOI: 10.1016/j.lpm.2022.104121] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Revised: 03/13/2022] [Accepted: 04/11/2022] [Indexed: 12/16/2022] Open
Abstract
Diagnosis and monitoring of neurodegenerative diseases has changed profoundly over the past twenty years. Biomarkers are now included in most diagnostic procedures as well as in clinical trials. Neuroimaging biomarkers provide access to brain structure and function over the course of neurodegenerative diseases. They have brought new insights into a wide range of neurodegenerative diseases and have made it possible to describe some of the imaging challenges in clinical populations. MRI mainly explores brain structure while molecular imaging, functional MRI and electro- and magnetoencephalography examine brain function. In this paper, we describe and analyse the current and potential contribution of MRI and molecular imaging in the field of neurodegenerative diseases.
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Lehnert W, Riss PJ, Hurtado de Mendoza A, Lopez S, Fernandez G, Ilheu M, Amaral H, Kramer V. Whole-body biodistribution and radiation dosimetry of [ 18F]PR04.MZ: a new PET radiotracer for clinical management of patients with movement disorders. EJNMMI Res 2022; 12:1. [PMID: 35006412 PMCID: PMC8748605 DOI: 10.1186/s13550-021-00873-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Accepted: 12/17/2021] [Indexed: 11/10/2022] Open
Abstract
PURPOSE [18F]PR04.MZ is a new PET imaging agent for dopamine transporters, providing excellent image quality and allowing for the evaluation of patients with movement disorders such as Parkinson's disease. The objective of this study was to evaluate the biodistribution and radiation dosimetry of [18F]PR04.MZ by serial PET imaging. METHODS Six healthy subjects (n = 3 males, n = 3 females) were enrolled in this study. A series of 14 whole-body PET/CT scans were acquired until 5.5 h post-injection of 200 ± 11 MBq of [18F]PR04.MZ. After rigid co-registration, volumes of interest were outlined either on CT or PET images. Time-integrated activity coefficients were calculated for selected source organs. Organ absorbed doses, and the effective dose were calculated using IDAC-Dose 2.1. RESULTS Physiological uptake of [18F]PR04.MZ was mainly observed in the striatum, brain, liver, gall bladder, intestine, red marrow and cortical bone. [18F]PR04.MZ was primarily excreted via hepatobiliary clearance and, to a lower extent, via renal clearance. The normalized absorbed doses were highest in gall bladder wall (32.2 ± 6.4 µGy/MBq), urinary bladder wall (27.2 ± 4.5 µGy/MBq), red marrow (26.5 ± 1.4 µGy/MBq), cortical bone surface (26.3 ± 2.5 µGy/MBq), liver (22.5 ± 1.8 µGy/MBq) and kidneys (21.8 ± 1.1 µGy/MBq). The effective dose according to ICRP 60 and 103 was 16.3 ± 1.1 and 16.6 ± 1.5 µSv/MBq, respectively. CONCLUSION [18F]PR04.MZ has a favourable dosimetry profile, comparable to those of other 18F-labelled PET tracers, and is suitable for larger clinical applications. Trial registration CEC SSM Oriente, Santiago, Chile, permit 20140520.
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Affiliation(s)
- Wencke Lehnert
- Department of Nuclear Medicine, University Medical Center Hamburg, Hamburg, Germany
| | - Patrick J Riss
- Department of Chemistry, University of Oslo, Oslo, Norway
| | - Ana Hurtado de Mendoza
- Center for Nuclear Medicine and PET/CT Positronmed, 7501068, Providencia, Santiago, Chile
| | - Sandra Lopez
- Center for Nuclear Medicine and PET/CT Positronmed, 7501068, Providencia, Santiago, Chile
| | - Gonzalo Fernandez
- Center for Nuclear Medicine and PET/CT Positronmed, 7501068, Providencia, Santiago, Chile
| | - Marcelo Ilheu
- Positronpharma SA, Rancagua 878, 7500921, Providencia, Santiago, Chile
| | - Horacio Amaral
- Center for Nuclear Medicine and PET/CT Positronmed, 7501068, Providencia, Santiago, Chile
- Positronpharma SA, Rancagua 878, 7500921, Providencia, Santiago, Chile
| | - Vasko Kramer
- Center for Nuclear Medicine and PET/CT Positronmed, 7501068, Providencia, Santiago, Chile.
- Positronpharma SA, Rancagua 878, 7500921, Providencia, Santiago, Chile.
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Fu P, Yung KKL. Response to Comment on "Association of Intestinal Disorders with Parkinson's Disease and Alzheimer's Disease: A Systematic Review and Meta-Analysis". ACS Chem Neurosci 2021; 12:811-812. [PMID: 33503369 DOI: 10.1021/acschemneuro.0c00718] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
Abstract
The commentary authors suggested removing one reference from the meta-analysis of PD and SIBO from our previously published article. We explained the reason why the mentioned study was included in the analysis. Furthermore, we provided the new result by re-meta-analyzing the PD and SIBO with the mentioned study removed and found the result was stable to the previous one. We make this response to clarify the potential confusion from this issue.
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Affiliation(s)
- Pengfei Fu
- Department of Biology, Hong Kong Baptist University, Hong Kong SAR, China
- Golden Meditech Center for NeuroRegeneration Sciences, Hong Kong Baptist University, Hong Kong SAR, China
| | - Ken Kin Lam Yung
- Department of Biology, Hong Kong Baptist University, Hong Kong SAR, China
- Golden Meditech Center for NeuroRegeneration Sciences, Hong Kong Baptist University, Hong Kong SAR, China
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Purcell EK, Becker MF, Guo Y, Hara SA, Ludwig KA, McKinney CJ, Monroe EM, Rechenberg R, Rusinek CA, Saxena A, Siegenthaler JR, Sortwell CE, Thompson CH, Trevathan JK, Witt S, Li W. Next-Generation Diamond Electrodes for Neurochemical Sensing: Challenges and Opportunities. MICROMACHINES 2021; 12:128. [PMID: 33530395 PMCID: PMC7911340 DOI: 10.3390/mi12020128] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Revised: 01/19/2021] [Accepted: 01/19/2021] [Indexed: 12/12/2022]
Abstract
Carbon-based electrodes combined with fast-scan cyclic voltammetry (FSCV) enable neurochemical sensing with high spatiotemporal resolution and sensitivity. While their attractive electrochemical and conductive properties have established a long history of use in the detection of neurotransmitters both in vitro and in vivo, carbon fiber microelectrodes (CFMEs) also have limitations in their fabrication, flexibility, and chronic stability. Diamond is a form of carbon with a more rigid bonding structure (sp3-hybridized) which can become conductive when boron-doped. Boron-doped diamond (BDD) is characterized by an extremely wide potential window, low background current, and good biocompatibility. Additionally, methods for processing and patterning diamond allow for high-throughput batch fabrication and customization of electrode arrays with unique architectures. While tradeoffs in sensitivity can undermine the advantages of BDD as a neurochemical sensor, there are numerous untapped opportunities to further improve performance, including anodic pretreatment, or optimization of the FSCV waveform, instrumentation, sp2/sp3 character, doping, surface characteristics, and signal processing. Here, we review the state-of-the-art in diamond electrodes for neurochemical sensing and discuss potential opportunities for future advancements of the technology. We highlight our team's progress with the development of an all-diamond fiber ultramicroelectrode as a novel approach to advance the performance and applications of diamond-based neurochemical sensors.
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Affiliation(s)
- Erin K. Purcell
- Department of Electrical and Computer Engineering, Michigan State University, East Lansing, MI 48824, USA; (Y.G.); (A.S.); (W.L.)
- Department of Biomedical Engineering, Michigan State University, East Lansing, MI 48824, USA;
- Neuroscience Program, Michigan State University, East Lansing, MI 48824, USA;
- Institute for Quantitative Health Science and Engineering, Michigan State University, East Lansing, MI 48824, USA
| | - Michael F. Becker
- Fraunhofer USA Center Midwest, East Lansing, MI 48824, USA; (M.F.B.); (R.R.); (J.R.S.); (S.W.)
| | - Yue Guo
- Department of Electrical and Computer Engineering, Michigan State University, East Lansing, MI 48824, USA; (Y.G.); (A.S.); (W.L.)
| | - Seth A. Hara
- Division of Engineering, Mayo Clinic, Rochester, MN 55905, USA;
| | - Kip A. Ludwig
- Department of Biomedical Engineering, University of Wisconsin-Madison, Madison, WI 53706, USA; (K.A.L.); (J.K.T.)
- Department of Neurosurgery, University of Wisconsin-Madison, Madison, WI 53792, USA
| | - Collin J. McKinney
- Department of Chemistry, Electronics Core Facility, University of North Carolina at Chapel Hill, Chapel Hill, NC 27514, USA;
| | - Elizabeth M. Monroe
- Department of Chemistry and Biochemistry, University of Nevada, Las Vegas, NV 89154, USA; (E.M.M.); (C.A.R.)
| | - Robert Rechenberg
- Fraunhofer USA Center Midwest, East Lansing, MI 48824, USA; (M.F.B.); (R.R.); (J.R.S.); (S.W.)
| | - Cory A. Rusinek
- Department of Chemistry and Biochemistry, University of Nevada, Las Vegas, NV 89154, USA; (E.M.M.); (C.A.R.)
| | - Akash Saxena
- Department of Electrical and Computer Engineering, Michigan State University, East Lansing, MI 48824, USA; (Y.G.); (A.S.); (W.L.)
- Institute for Quantitative Health Science and Engineering, Michigan State University, East Lansing, MI 48824, USA
| | - James R. Siegenthaler
- Fraunhofer USA Center Midwest, East Lansing, MI 48824, USA; (M.F.B.); (R.R.); (J.R.S.); (S.W.)
| | - Caryl E. Sortwell
- Neuroscience Program, Michigan State University, East Lansing, MI 48824, USA;
- Department of Translational Neuroscience, College of Human Medicine, Michigan State University, Grand Rapids, MI 49503, USA
| | - Cort H. Thompson
- Department of Biomedical Engineering, Michigan State University, East Lansing, MI 48824, USA;
- Institute for Quantitative Health Science and Engineering, Michigan State University, East Lansing, MI 48824, USA
| | - James K. Trevathan
- Department of Biomedical Engineering, University of Wisconsin-Madison, Madison, WI 53706, USA; (K.A.L.); (J.K.T.)
- Grainger Institute for Engineering, University of Wisconsin-Madison, Madison, WI 53706, USA
| | - Suzanne Witt
- Fraunhofer USA Center Midwest, East Lansing, MI 48824, USA; (M.F.B.); (R.R.); (J.R.S.); (S.W.)
| | - Wen Li
- Department of Electrical and Computer Engineering, Michigan State University, East Lansing, MI 48824, USA; (Y.G.); (A.S.); (W.L.)
- Department of Biomedical Engineering, Michigan State University, East Lansing, MI 48824, USA;
- Neuroscience Program, Michigan State University, East Lansing, MI 48824, USA;
- Institute for Quantitative Health Science and Engineering, Michigan State University, East Lansing, MI 48824, USA
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Payoux P, Ranjeva JP. Contributions of PET and MRI imaging in the evaluation of CNS drugs in human neurodegenerative diseases. Therapie 2020; 76:121-126. [PMID: 33563477 DOI: 10.1016/j.therap.2020.12.008] [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: 06/15/2020] [Accepted: 09/29/2020] [Indexed: 11/19/2022]
Abstract
This manuscript reviews the contributions of the neuroimaging methods including PET, conventional and advanced MRI methods to monitor the effect of new disease modifying drugs in neurodegenerative diseases. It now seems obvious that in many pathologies these two techniques are more and more complementary.
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Affiliation(s)
- Pierre Payoux
- Inserm, UPS, ToNIC, Nuclear Medicine Department, Toulouse NeuroImaging Center, University Hospital of Toulouse France, Université de Toulouse, 31000 Toulouse, France.
| | - Jean-Philippe Ranjeva
- CNRS, CRMBM, Aix-Marseille University, 13385 Marseille, France; CEMEREM, AP-HM, University Hospital Timone, 13385 Marseille, France
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Zhang Q, Cui Q. Biodistribution of andrographolide to assess the interior-exterior relationship between the lung and intestine using microPET. Thorac Cancer 2020; 11:3365-3374. [PMID: 33017514 PMCID: PMC7606023 DOI: 10.1111/1759-7714.13682] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Revised: 09/08/2020] [Accepted: 09/11/2020] [Indexed: 01/23/2023] Open
Abstract
Background One classic traditional Chinese medicine theory is that the “lung and intestine are exterior‐interiorly related”; however, this has not been confirmed experimentally. The aim of this study was to provide a biological basis for the theory by measuring the tissue distribution of andrographolide. Methods Acute pneumonia was induced in a mouse model by repeated stimulation with lipopolysaccharide. The distribution of andrographolide in mice was observed by positron emission tomography (PET) imaging with [18F]‐labeled andrographolide, and changes in the in vivo distribution before and after modeling were compared. Subsequently, the consistency of pathological changes in lung and intestine was confirmed by observation of pathological sections. Finally, the results were verified by cytokine detection. Results The value of organ uptake, pathological changes and inflammatory factor expression of the lung and intestine were consistent. The concentration of andrographolide in the lung and intestine increased significantly, and was confirmed by pathology and enzyme‐linked immunosorbent assays (ELISA). Conclusions Micro‐positron emission tomography (microPET) can be used to visually observe the distribution of medicinal ingredients in vivo, and [18F]‐andrographolide can be used as a tool to assess the interior‐exterior relationship between the lung and intestine.
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Affiliation(s)
- Qi Zhang
- College of Pharmacy, State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin, China
| | - Qingxin Cui
- College of Pharmacy, State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin, China
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Merola A, Van Laar A, Lonser R, Bankiewicz K. Gene therapy for Parkinson’s disease: contemporary practice and emerging concepts. Expert Rev Neurother 2020; 20:577-590. [DOI: 10.1080/14737175.2020.1763794] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Aristide Merola
- Department of Neurology, College of Medicine, the Ohio State University, Columbus, OH, USA
| | - Amber Van Laar
- Brain Neurotherapy Bio, Inc., Columbus, OH, USA
- University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Russell Lonser
- Department of Neurological Surgery, College of Medicine, The Ohio State University, Columbus, OH, USA
| | - Krzysztof Bankiewicz
- Department of Neurological Surgery, College of Medicine, The Ohio State University, Columbus, OH, USA
- Department of Neurological Surgery, University of California San Francisco, San Francisco, CA, USA
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11
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Millot M, Saga Y, Duperrier S, Météreau E, Beaudoin-Gobert M, Sgambato V. Prior MDMA administration aggravates MPTP-induced Parkinsonism in macaque monkeys. Neurobiol Dis 2020; 134:104643. [DOI: 10.1016/j.nbd.2019.104643] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Revised: 09/27/2019] [Accepted: 10/16/2019] [Indexed: 11/25/2022] Open
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