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Marek K, Pfankuche V, Plattet P, Armando F, Brogden G, Gerold G, Baumgärtner W, Puff C. In Vitro Characterization of Two New Genetically Modified Potentially Oncolytic Viruses Derived From CDV-Onderstepoort: CDV-Ond-Vasostatin and CDV-Ond-GM-CSF: Preliminary Results. J Comp Pathol 2022. [DOI: 10.1016/j.jcpa.2021.11.141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Michelson D, Grundman M, Magnuson K, Fisher R, Levenson JM, Aisen P, Marek K, Gray M, Hefti F. Randomized, Placebo Controlled Trial of NPT088, A Phage-Derived, Amyloid-Targeted Treatment for Alzheimer's Disease. J Prev Alzheimers Dis 2020; 6:228-231. [PMID: 31686093 DOI: 10.14283/jpad.2019.37] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
The engineered fusion protein NPT088 targets amyloid in vitro and in animal models of Alzheimer's disease. Previous studies showed that NPT088 treatment reduced β-amyloid plaque and tau aggregate loads in mouse disease models. Here, we present the results from an initial clinical study of NPT088 in patients with mild to moderate Alzheimer's disease. Patients were treated with 4 dose levels of NPT088 for 6 months to evaluate its safety and tolerability. Exploratory measurements included measurement of change in β-amyloid plaque and tau burden utilizing Positron Emission Tomography imaging as well as measures of Alzheimer's disease symptoms. At endpoint NPT088 was generally safe and well-tolerated with the most prominent finding being infusion reactions in a minority of patients. No effect of NPT088 on brain plaques, tau aggregates or Alzheimer's disease symptoms was observed.
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Affiliation(s)
- D Michelson
- Richard Fisher, 125 Cambridgepark Dr. Ste 301, Cambridge MA 02140, USA, Tel: 1-857-998-1664, , FAX: 1-857-320-4020
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Chahine LM, Iranzo A, Fernández-Arcos A, Simuni T, Seedorff N, Caspell-Garcia C, Amara AW, Comella C, Högl B, Hamilton J, Marek K, Mayer G, Mollenhauer B, Postuma R, Tolosa E, Trenkwalder C, Videnovic A, Oertel W. Basic clinical features do not predict dopamine transporter binding in idiopathic REM behavior disorder. NPJ Parkinsons Dis 2019; 5:2. [PMID: 30701189 PMCID: PMC6351563 DOI: 10.1038/s41531-018-0073-1] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Accepted: 12/03/2018] [Indexed: 12/02/2022]
Abstract
REM sleep behavior disorder (RBD) is strongly associated with development of Parkinson’s Disease and other α-synuclein-related disorders. Dopamine transporter (DAT) binding deficit predicts conversion to α-synuclein-related disorders in individuals with RBD. In turn, identifying which individuals with RBD have the highest likelihood of having abnormal DAT binding would be useful. The objective of this analysis was to examine if there are basic clinical predictors of DAT deficit in RBD. Participants referred for inclusion in the RBD cohort of the Parkinson Progression Markers Initiative were included. Assessments at the screening visit including DAT SPECT imaging, physical examination, cognitive function screen, and questionnaire-based non-motor assessment. The group with DAT binding deficit (n = 49) was compared to those without (n = 26). There were no significant differences in demographic or clinical features between the two groups. When recruiting RBD cohorts enriched for high risk of neurodegenerative disorders, our data support the need for objective biomarker assessments. The clinical characteristics of patients with rapid eye movement sleep behavior disorder (RBD) are not associated with reduced dopamine transporter binding, an established imaging biomarker of Parkinson’s Disease (PD). Because around 80 percent of patients with RBD develop PD, there is great hope that research on these patients will help uncover early signs of the disease and guide the development of neuroprotective therapies. Lana Chahine at The University of Pittsburgh, USA, and colleagues in the Parkinson Progression Markers Initiative (PPMI) Sleep Working Group analyzed the clinical features of 75 individuals with RBD. They found no significant differences in demographic features or in motor and non-motor symptoms between RBD patients with dopamine transporter binding deficit and those without. These findings highlight the need to assess dopamine transporter binding to determine the future risk of PD.
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Affiliation(s)
- L M Chahine
- 1Department of Neurology, The University of Pittsburgh, Pittsburgh, PA USA
| | - A Iranzo
- Neurology Service, Hospital Clinic de Barcelona, IDIBAPS, CIBERNED, Barcelona, Spain
| | - A Fernández-Arcos
- Neurology Service, Hospital Clinic de Barcelona, IDIBAPS, CIBERNED, Barcelona, Spain
| | - T Simuni
- 3Department of Neurology, Feinberg School of Medicine, Northwestern University, Chicago, IL USA
| | - N Seedorff
- 4Department of Biostatistics, The University of Iowa, Iowa City, IA USA
| | - C Caspell-Garcia
- 4Department of Biostatistics, The University of Iowa, Iowa City, IA USA
| | - A W Amara
- 5Department of Neurology, The University of Alabama at Birmingham, Birmingham, AL USA
| | - C Comella
- 6Department of Neurology, Rush University, Chicago, IL USA
| | - B Högl
- 7Department of Neurology, Innsbruck Medical University, Innsbruck, Austria
| | - J Hamilton
- 8The Michael J. Fox Foundation for Parkinson's Research, New York, NY USA
| | - K Marek
- 9Institute for Neurodegenerative Disorders, New Haven, CT USA
| | - G Mayer
- Department of Neurology, Hephata-Klinik, Hephata Hessisches Diakoniezentrum, e.V, Weibersbrunn, Germany
| | - B Mollenhauer
- 11Department of Neurology, University Medical Center, Göttingen, Germany.,12Paracelsus-Elena-Klinik, Kassel, Germany
| | - R Postuma
- 13Division of Neurology, McGill University, Montreal, QC Canada
| | - E Tolosa
- Neurology Service, Hospital Clinic de Barcelona, IDIBAPS, CIBERNED, Barcelona, Spain
| | - C Trenkwalder
- 11Department of Neurology, University Medical Center, Göttingen, Germany.,12Paracelsus-Elena-Klinik, Kassel, Germany
| | - A Videnovic
- 14Department of Neurology, Massachusetts General Hospital, Boston, MA USA
| | - W Oertel
- 15Department of Neurology, Philipps University, Marburg, Germany.,16Charitable Hertie Foundation, Frankfurt/Main, Germany
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Obeso J, Stamelou M, Goetz C, Poewe W, Lang A, Weintraub D, Burn D, Halliday G, Bezard E, Przedborski S, Lehericy S, Brooks D, Rothwell J, Hallett M, DeLong M, Marras C, Tanner C, Ross G, Langston J, Klein C, Bonifati V, Jankovic J, Lozano A, Deuschl G, Bergman H, Tolosa E, Rodriguez-Violante M, Fahn S, Postuma R, Berg D, Marek K, Standaert D, Surmeier D, Olanow C, Kordower J, Calabresi P, Schapira A, Stoessl A. Past, present, and future of Parkinson's disease: A special essay on the 200th Anniversary of the Shaking Palsy. Mov Disord 2017; 32:1264-1310. [PMID: 28887905 PMCID: PMC5685546 DOI: 10.1002/mds.27115] [Citation(s) in RCA: 469] [Impact Index Per Article: 67.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2017] [Accepted: 06/27/2017] [Indexed: 12/12/2022] Open
Abstract
This article reviews and summarizes 200 years of Parkinson's disease. It comprises a relevant history of Dr. James Parkinson's himself and what he described accurately and what he missed from today's perspective. Parkinson's disease today is understood as a multietiological condition with uncertain etiopathogenesis. Many advances have occurred regarding pathophysiology and symptomatic treatments, but critically important issues are still pending resolution. Among the latter, the need to modify disease progression is undoubtedly a priority. In sum, this multiple-author article, prepared to commemorate the bicentenary of the shaking palsy, provides a historical state-of-the-art account of what has been achieved, the current situation, and how to progress toward resolving Parkinson's disease. © 2017 International Parkinson and Movement Disorder Society.
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Affiliation(s)
- J.A. Obeso
- HM CINAC, Hospital Universitario HM Puerta del Sur, Mostoles, Madrid, Spain
- Universidad CEU San Pablo, Madrid, Spain
- CIBERNED, Madrid, Spain
| | - M. Stamelou
- Department of Neurology, Philipps University, Marburg, Germany
- Parkinson’s Disease and Movement Disorders Department, HYGEIA Hospital and Attikon Hospital, University of Athens, Athens, Greece
| | - C.G. Goetz
- Department of Neurological Sciences, Rush University Medical Center, Chicago, Illinois, USA
| | - W. Poewe
- Department of Neurology, Medical University Innsbruck, Innsbruck, Austria
| | - A.E. Lang
- Morton and Gloria Shulman Movement Disorders Clinic and the Edmond J Safra Program in Parkinson’s Disease, Toronto Western Hospital, Toronto, Canada
- Department of Medicine, University of Toronto, Toronto, Canada
| | - D. Weintraub
- Department of Psychiatry, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania, USA
- Parkinson’s Disease and Mental Illness Research, Education and Clinical Centers (PADRECC and MIRECC), Corporal Michael J. Crescenz Veteran’s Affairs Medical Center, Philadelphia, Pennsylvania, USA
| | - D. Burn
- Medical Sciences, Newcastle University, Newcastle, UK
| | - G.M. Halliday
- Brain and Mind Centre, Sydney Medical School, The University of Sydney, Sydney, Australia
- School of Medical Sciences, University of New South Wales and Neuroscience Research Australia, Sydney, Australia
| | - E. Bezard
- Université de Bordeaux, Institut des Maladies Neurodégénératives, Centre National de la Recherche Scientifique Unité Mixte de Recherche 5293, Institut des Maladies Neurodégénératives, Bordeaux, France
- China Academy of Medical Sciences, Institute of Lab Animal Sciences, Beijing, China
| | - S. Przedborski
- Departments of Neurology, Pathology, and Cell Biology, the Center for Motor Neuron Biology and Disease, Columbia University, New York, New York, USA
- Columbia Translational Neuroscience Initiative, Columbia University, New York, New York, USA
| | - S. Lehericy
- Institut du Cerveau et de la Moelle épinière – ICM, Centre de NeuroImagerie de Recherche – CENIR, Sorbonne Universités, UPMC Univ Paris 06, Inserm U1127, CNRS UMR 7225, Paris, France
- Groupe Hospitalier Pitié-Salpêtrière, Paris, France
| | - D.J. Brooks
- Clinical Sciences Department, Newcastle University, Newcastle, UK
- Department of Nuclear Medicine, Aarhus University, Aarhus, Denmark
| | - J.C. Rothwell
- Human Neurophysiology, Sobell Department, UCL Institute of Neurology, London, UK
| | - M. Hallett
- Human Motor Control Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, Maryland, USA
| | - M.R. DeLong
- Department of Neurology, Emory University School of Medicine, Atlanta, Georgia, USA
| | - C. Marras
- Morton and Gloria Shulman Movement Disorders Centre and the Edmond J Safra Program in Parkinson’s disease, Toronto Western Hospital, University of Toronto, Toronto, Canada
| | - C.M. Tanner
- Movement Disorders and Neuromodulation Center, Department of Neurology, University of California–San Francisco, San Francisco, California, USA
- Parkinson’s Disease Research, Education and Clinical Center, San Francisco Veterans Affairs Medical Center, San Francisco, California, USA
| | - G.W. Ross
- Veterans Affairs Pacific Islands Health Care System, Honolulu, Hawaii, USA
| | | | - C. Klein
- Institute of Neurogenetics, University of Luebeck, Luebeck, Germany
| | - V. Bonifati
- Department of Clinical Genetics, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - J. Jankovic
- Parkinson’s Disease Center and Movement Disorders Clinic, Department of Neurology, Baylor College of Medicine, Houston, Texas, USA
| | - A.M. Lozano
- Department of Neurosurgery, Toronto Western Hospital, University of Toronto, Toronto, Canada
| | - G. Deuschl
- Department of Neurology, Universitätsklinikum Schleswig-Holstein, Christian Albrechts University Kiel, Kiel, Germany
| | - H. Bergman
- Department of Medical Neurobiology, Institute of Medical Research Israel-Canada, Jerusalem, Israel
- Edmond and Lily Safra Center for Brain Sciences, The Hebrew University, Jerusalem, Israel
- Department of Neurosurgery, Hadassah University Hospital, Jerusalem, Israel
| | - E. Tolosa
- Parkinson’s Disease and Movement Disorders Unit, Neurology Service, Institut Clínic de Neurociències, Hospital Clínic de Barcelona, Barcelona, Spain
- Department of Medicine, Universitat de Barcelona, IDIBAPS, Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Barcelona, Spain
| | - M. Rodriguez-Violante
- Movement Disorders Clinic, Clinical Neurodegenerative Research Unit, Mexico City, Mexico
- Instituto Nacional de Neurología y Neurocirugía, Mexico City, Mexico
| | - S. Fahn
- Department of Neurology, Columbia University Medical Center, New York, New York, USA
| | - R.B. Postuma
- Department of Neurology, McGill University, Montreal General Hospital, Montreal, Quebec, Canada
| | - D. Berg
- Klinikfür Neurologie, UKSH, Campus Kiel, Christian-Albrechts-Universität, Kiel, Germany
| | - K. Marek
- Institute for Neurodegenerative Disorders, New Haven, Connecticut, USA
| | - D.G. Standaert
- Department of Neurology, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - D.J. Surmeier
- Department of Physiology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA
| | - C.W. Olanow
- Departments of Neurology and Neuroscience, Mount Sinai School of Medicine, New York, New York, USA
| | - J.H. Kordower
- Research Center for Brain Repair, Rush University Medical Center, Chicago, Illinois, USA
- Neuroscience Graduate Program, Rush University Medical Center, Chicago, Illinois, USA
| | - P. Calabresi
- Neurological Clinic, Department of Medicine, Hospital Santa Maria della Misericordia, University of Perugia, Perugia, Italy
- Laboratory of Neurophysiology, Santa Lucia Foundation, IRCCS, Rome, Italy
| | - A.H.V. Schapira
- University Department of Clinical Neurosciences, UCL Institute of Neurology, University College London, London, UK
| | - A.J. Stoessl
- Pacific Parkinson’s Research Centre, Division of Neurology & Djavadf Mowafaghian Centre for Brain Health, University of British Columbia, British Columbia, Canada
- Vancouver Coastal Health, Vancouver, British Columbia, Canada
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Chahine LM, Uribe L, Hogarth P, McNames J, Siderowf A, Marek K, Jennings D. Portable objective assessment of upper extremity motor function in Parkinson's disease. Parkinsonism Relat Disord 2017; 43:61-66. [PMID: 28747279 DOI: 10.1016/j.parkreldis.2017.07.017] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/04/2017] [Revised: 07/08/2017] [Accepted: 07/19/2017] [Indexed: 10/19/2022]
Abstract
INTRODUCTION Objective, portable measures of motor function for out-of-office assessments are needed in Parkinson's Disease (PD). This study had 3 objectives. First, to examine change in objective motor measurements in PD (as assessed with the Objective PD Measurement (OPDM) system). Second, to correlate objective measures with clinical features and putative PD cerebrospinal fluid (CSF) and dopaminergic imaging biomarkers. Third, to assess participant compliance with and perceptions of serial in-home motor assessments. METHODS De novo PD subjects participating in this pilot study of the Parkinson Progression Markers Initiative (PPMI) completed OPDM assessments at home weekly for 3 months and in the clinic at baseline and 3-, 6-, and 12-months. Tasks included (i)digitography (ii)a repetitive hand tapping task and (iii)timed pegboard task. A global objective motor score (OMS) was derived from the latter three. MDS-UPDRS-III score was obtained at each time point, and CSF and dopamine transporter (DAT) SPECT at baseline. RESULTS 27 participants, mean age 62.6 years, 19 male were included. A mean of 10.5 in-home assessments were completed. There was no significant change in in-home OMS over 12 weeks (p = 0.48). There was strong correlation between mean baseline OMS and MDS-UPDRS-III scores (spearman's rho = 0.60, p=<0.0001). Baseline OMS predicted 6-month MDS-UPDRS-III (β = 0.80, p = 0.0002) but not change in MDS-UPDRS-III score, DAT SPECT, or putative CSF biomarkers. CONCLUSIONS This study suggests that administration of in-home motor tasks as part of a large multi-center study is feasible and scores derived from these assessments may serve as surrogates of in-person clinician-assessed motor score.
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Affiliation(s)
- L M Chahine
- Department of Neurology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA.
| | - L Uribe
- Department of Biostatistics, College of Public Health, University of Iowa, Iowa City, IA, USA
| | - P Hogarth
- Department of Molecular & Medical Genetics, Oregon Health & Science University, Portland, USA; Department of Neurology, Oregon Health & Science University, Portland, USA
| | - J McNames
- Biomedical Signal Processing Laboratory, Portland State University, Portland, OR, USA
| | - A Siderowf
- Department of Neurology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA
| | - K Marek
- The Institute for Neurodegenerative Disorders, New Haven, CT, USA
| | - D Jennings
- Eli Lilly and Company, New York, NY, USA
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Muller MLTM, Albin RL, Bohnen NI, Jennings D, Siderowf A, Stern M, Seibyl J, Eberly S, Oakes D, Marek K. Imaging prodromal Parkinson disease: The Parkinson Associated Risk Syndrome Study. Neurology 2015; 84:2292. [DOI: 10.1212/wnl.0000000000001654] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Mitsis EM, Riggio S, Kostakoglu L, Dickstein DL, Machac J, Delman B, Goldstein M, Jennings D, D'Antonio E, Martin J, Naidich TP, Aloysi A, Fernandez C, Seibyl J, DeKosky ST, Elder GA, Marek K, Gordon W, Hof PR, Sano M, Gandy S. Tauopathy PET and amyloid PET in the diagnosis of chronic traumatic encephalopathies: studies of a retired NFL player and of a man with FTD and a severe head injury. Transl Psychiatry 2014; 4:e441. [PMID: 25226550 PMCID: PMC4203018 DOI: 10.1038/tp.2014.91] [Citation(s) in RCA: 89] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/09/2014] [Revised: 08/12/2014] [Accepted: 08/13/2014] [Indexed: 12/14/2022] Open
Abstract
Single, severe traumatic brain injury (TBI) which elevates CNS amyloid, increases the risk of Alzheimer's disease (AD); while repetitive concussive and subconcussive events as observed in athletes and military personnel, may increase the risk of chronic traumatic encephalopathy (CTE). We describe two clinical cases, one with a history of multiple concussions during a career in the National Football League (NFL) and the second with frontotemporal dementia and a single, severe TBI. Both patients presented with cognitive decline and underwent [(18)F]-Florbetapir positron emission tomography (PET) imaging for amyloid plaques; the retired NFL player also underwent [(18)F]-T807 PET imaging, a new ligand binding to tau, the main constituent of neurofibrillary tangles (NFT). Case 1, the former NFL player, was 71 years old when he presented with memory impairment and a clinical profile highly similar to AD. [(18)F]-Florbetapir PET imaging was negative, essentially excluding AD as a diagnosis. CTE was suspected clinically, and [(18)F]-T807 PET imaging revealed striatal and nigral [(18)F]-T807 retention consistent with the presence of tauopathy. Case 2 was a 56-year-old man with personality changes and cognitive decline who had sustained a fall complicated by a subdural hematoma. At 1 year post injury, [(18)F]-Florbetapir PET imaging was negative for an AD pattern of amyloid accumulation in this subject. Focal [(18)F]-Florbetapir retention was noted at the site of impact. In case 1, amyloid imaging provided improved diagnostic accuracy where standard clinical and laboratory criteria were inadequate. In that same case, tau imaging with [(18)F]-T807 revealed a subcortical tauopathy that we interpret as a novel form of CTE with a distribution of tauopathy that mimics, to some extent, that of progressive supranuclear palsy (PSP), despite a clinical presentation of amnesia without any movement disorder complaints or signs. A key distinguishing feature is that our patient presented with hippocampal involvement, which is more frequently seen in CTE than in PSP. In case 2, focal [(18)F]-Florbetapir retention at the site of injury in an otherwise negative scan suggests focal amyloid aggregation. In each of these complex cases, a combination of [(18)F]-fluorodeoxyglucose, [(18)F]-Florbetapir and/or [(18)F]-T807 PET molecular imaging improved the accuracy of diagnosis and prevented inappropriate interventions.
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Affiliation(s)
- E M Mitsis
- 1] Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, NY, USA [2] Mount Sinai's Alzheimer's Disease Research Center, Icahn School of Medicine at Mount Sinai, New York, NY, USA [3] James J. Peters VA Medical Center, Bronx, NY, USA
| | - S Riggio
- 1] Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, NY, USA [2] James J. Peters VA Medical Center, Bronx, NY, USA [3] Department of Neurology, Icahn School of Medicine at Mount Sinai, New York, NY, USA [4] The NFL Neurological Program, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - L Kostakoglu
- Department of Nuclear Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - D L Dickstein
- 1] Mount Sinai's Alzheimer's Disease Research Center, Icahn School of Medicine at Mount Sinai, New York, NY, USA [2] Fishberg Department of Neuroscience, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - J Machac
- Department of Nuclear Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - B Delman
- Department of Radiology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - M Goldstein
- Department of Neurology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - D Jennings
- Institute for Neurodegenerative Disorders, Yale University, New Haven, CT, USA
| | - E D'Antonio
- Department of Rehabilitation Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - J Martin
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - T P Naidich
- Department of Radiology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - A Aloysi
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - C Fernandez
- 1] Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, NY, USA [2] Mount Sinai's Alzheimer's Disease Research Center, Icahn School of Medicine at Mount Sinai, New York, NY, USA [3] James J. Peters VA Medical Center, Bronx, NY, USA
| | - J Seibyl
- Institute for Neurodegenerative Disorders, Yale University, New Haven, CT, USA
| | - S T DeKosky
- Department of Neurology, University of Virginia, Charlottesville, VA, USA
| | - G A Elder
- 1] Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, NY, USA [2] James J. Peters VA Medical Center, Bronx, NY, USA [3] Department of Neurology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - K Marek
- Institute for Neurodegenerative Disorders, Yale University, New Haven, CT, USA
| | - W Gordon
- 1] The NFL Neurological Program, Icahn School of Medicine at Mount Sinai, New York, NY, USA [2] Department of Rehabilitation Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - P R Hof
- 1] Mount Sinai's Alzheimer's Disease Research Center, Icahn School of Medicine at Mount Sinai, New York, NY, USA [2] Fishberg Department of Neuroscience, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - M Sano
- 1] Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, NY, USA [2] Mount Sinai's Alzheimer's Disease Research Center, Icahn School of Medicine at Mount Sinai, New York, NY, USA [3] James J. Peters VA Medical Center, Bronx, NY, USA
| | - S Gandy
- 1] Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, NY, USA [2] Mount Sinai's Alzheimer's Disease Research Center, Icahn School of Medicine at Mount Sinai, New York, NY, USA [3] James J. Peters VA Medical Center, Bronx, NY, USA [4] Department of Neurology, Icahn School of Medicine at Mount Sinai, New York, NY, USA [5] The NFL Neurological Program, Icahn School of Medicine at Mount Sinai, New York, NY, USA
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Bajaj N, Grachev I, Seibyl J, Marek K, Kupsch A, Plotkin M, Hauser R. Sensitivity, specificity, positive and negative predictive values and accuracy of datscan™/INS; for prediction of clinical diagnosis of early parkinsonian syndromes. J Neurol Sci 2013. [DOI: 10.1016/j.jns.2013.07.535] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Schuff N, Wu K, Buckley S, Zhang Y, Seibyl J, Marek K. Distribution of Diminished Brain Microstructure in Parkinson's Disease: A Diffusion Tensor Imaging Study of the Parkinson's Progression Marker Initiative (S22.003). Neurology 2012. [DOI: 10.1212/wnl.78.1_meetingabstracts.s22.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Seibyl J, Russell D, Jennings D, Marek K. The molecular basis of dopaminergic brain imaging in Parkinson's disease. Q J Nucl Med Mol Imaging 2012; 56:4-16. [PMID: 22460156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
The central role of dopamine neuronal loss in Parkinson's disease provides a clear pathologic framework and rationale for imaging the system both to interrogate dynamic pathophysiologic changes as well as to aid in diagnosis and clinical management. Recent post mortem studies of Parkinson's brain provide a much fuller depiction of the inexorable and progressive topology of pathophysiologic changes, including brain alpha-synuclein deposition. This informs PET and SPECT evaluations for testing hypotheses regarding the course of degeneration in longitudinal studies of Parkinson's disease patients. Recent work has underscored the subtlety of change in the dopaminergic neuronal system and its neural connections as a function of disease status and treatment. The interplay between other neurochemical brain systems and dopamine elucidates potential new targets for therapeutic intervention across the stages of the disease.
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Affiliation(s)
- J Seibyl
- Institute for Neurodegenerative Disorders, Molecular NeuroImaging, LLC, New Haven, Connecticut 06510, USA.
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Tanner C, Kieburtz K, Galpern W, Delong M, Dickson D, Elm J, Faroud T, Kamp C, Lang A, Marder K, Marek K, Pfeiffer R, Ross G, Siderowf A, Weintraub D. 1.003 FACILITATING CLINICAL RESEARCH: THE NATIONAL INSTITUTE OF NEUROLOGICAL DISORDERS (NINDS) AND STROKE PARKINSON'S DISEASE COMMON DATA ELEMENTS PROJECT. Parkinsonism Relat Disord 2012. [DOI: 10.1016/s1353-8020(11)70117-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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Hall DA, Jennings D, Seibyl J, Tassone F, Marek K. FMR1 gene expansion and scans without evidence of dopaminergic deficits in parkinsonism patients. Parkinsonism Relat Disord 2010; 16:608-11. [PMID: 20702130 DOI: 10.1016/j.parkreldis.2010.07.006] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/23/2009] [Revised: 07/07/2010] [Accepted: 07/08/2010] [Indexed: 11/26/2022]
Abstract
PURPOSE To determine if patients with parkinsonism and fragile X mental retardation 1 (FMR1) gene expansions have a striatal dopamine deficit similar to Parkinson disease (PD) patients. SCOPE The authors studied three patients with parkinsonism carrying small expansions in the FMR1 gene (41-60 CGG) with [(123)I]β-CIT SPECT imaging. The patients responded to dopaminergic medications, but had preserved dopamine transporter density. CONCLUSIONS These results suggest that parkinsonism associated with smaller FMR1 expansions may be related to mechanisms other than pre-synaptic dopaminergic changes and may represent a potential explanation for at least some parkinsonian cases with scans without evidence of dopaminergic deficits (SWEDD).
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Affiliation(s)
- D A Hall
- Department of Neurological Sciences, Rush University, Chicago, IL 60612, USA.
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Russell D, Jennings D, Tamagnan G, Seibyl J, Koren A, Zubal G, Marek K. Poster 14: Evaluation of Novel Radiotracers Targeting Non-Dopaminergic Striatal Biomarkers in HD: 18F-FPEB and PET Imaging for Metabotropic Glutamate Receptor Type 5 (mGluR5) Expression in Healthy Subjects and Subjects with Huntington Disease (HD). Neurotherapeutics 2010. [DOI: 10.1016/j.nurt.2009.09.016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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14
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Schapira A, Albrecht S, Barone P, Comella C, Hsu H, Massey D, McDermott M, Poewe W, Rascol O, Scrine K, Marek K. P1.203 Immediate vs. delayed-start pramipexole in early Parkinson's disease: the PROUD study. Parkinsonism Relat Disord 2009. [DOI: 10.1016/s1353-8020(09)70325-6] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Abstract
BACKGROUND Fatigue is a common complaint in Parkinson disease (PD). We investigated fatigue in a cohort of previously untreated patients with early PD enrolled in the Earlier vs Later Levodopa (ELLDOPA) clinical trial. METHODS A total of 361 patients were enrolled in the randomized, double-blind, placebo-controlled ELLDOPA trial and assigned to receive placebo or carbidopa-levodopa 37.5/150 mg, 75/300 mg, or 150/600 mg daily for 40 weeks, followed by a 2-week medication washout period. Subjects who scored >4 on the Fatigue Severity Scale were classified as fatigued. PD severity was assessed using the Unified Parkinson's Disease Rating Scale (UPDRS), Hoehn-Yahr scale, and Schwab-England Activities of Daily Living Scale. A subgroup of subjects underwent [(123)I]-beta-CIT SPECT to measure striatal dopamine transporter density. RESULTS Of the 349 ELLDOPA subjects who completed fatigue measures, 128 were classified as fatigued at baseline. The fatigued group was significantly more impaired neurologically (UPDRS, all subscales and Hoehn and Yahr staging) and functionally (Schwab-England Scale) but no significant differences were observed in beta-CIT measurements between the two groups. Analysis of covariance showed a greater increase in fatigue score from baseline to the end of the 2-week washout in the placebo group (0.75 points) than in the three groups receiving levodopa (increases of 0.30 [150 mg/day], 0.36 [300 mg/day], and 0.33 [600 mg/day]; p = 0.03 for heterogeneity). CONCLUSIONS Fatigue is a frequent symptom in early, untreated, non-depressed patients with Parkinson disease (PD), affecting over 1/3 of the patients in this cohort at baseline and 50% by week 42. Fatigue was associated with the severity of PD, and progressed less in patients treated with levodopa.
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Zubal G, Wisniewski G, Marek K, Tamagnan G, Seibyl J. Automated radio-tracer evaluation. Neuroimage 2008. [DOI: 10.1016/j.neuroimage.2008.04.076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Tamagnan G, Koren A, Staley J, Cosgrove K, Megyola C, Marek K, Seibyl J. INER, a subnanomolar affinity ligand for the norepinephrine transporter: In vivo characterization in subhuman primates. Neuroimage 2006. [DOI: 10.1016/j.neuroimage.2006.04.121] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Marshall VL, Grosset DG, Zweig RM, Lilien DL, Tainter K, Patterson J, Ravina B, Lange N, Marek K, Holloway R, Eidelberg D. The role of radiotracer imaging in Parkinson disease. Neurology 2005. [DOI: 10.1212/wnl.65.7.1144] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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20
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Seibyl J, Jennings D, Tabamo R, Marek K. The role of neuroimaging in the early diagnosis and evaluation of Parkinson's disease. Minerva Med 2005; 96:353-64. [PMID: 16227950] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
The development of imaging biomarkers which target specific sites in the brain represents a significant advance in neurodegenerative diseases and Parkinson's disease with the promise of new and improved approaches for the early and accurate diagnosis of disease as well as novel ways to monitor patients and assess treatment. The 3 major applications of imaging may play a role in Parkinson's disease include: 1) the use of neuroimaging as a biomarker of disease in order to improve the accuracy, timeliness, and reliability of diagnosis; 2) objective monitoring of the progression of disease to provide a molecular phenotype of Parkinson's disease which may illuminate some of the sources of clinical variability; 3) the evaluation of so-called ''disease-modifying'' treatments designed to retard the progression of disease by interfering with pathways thought implicated in the ongoing neuronal loss or replace dopamine-producing cells. Each of these areas has shown a numbers of critical clinical investigations which have better defined the utility of the imaging tools to these tasks. Nonetheless, current unresolved issues around the clinical role of neuroimaging in monitoring patients over time and validation of quantitative imaging measures of dopaminergic function are immediate issues for the field and the subject of current research efforts and the extension of the lessons learned in Parkinson's to other neurodegenerative diseases including Alzheimer's dementia.
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Affiliation(s)
- J Seibyl
- Institute for Neurodegenerative Disorders, New Haven, CT 06510, USA.
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Seibyl J, Jennings D, Tabamo R, Marek K. Unique roles of SPET brain imaging in clinical and research studies. Lessons from Parkinson's disease research. Q J Nucl Med Mol Imaging 2005; 49:215-21. [PMID: 16010256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
The increasing availability of PET imaging in nuclear medicine expands the armamentarium of clinical and research tools for improving diagnosis and treatment of neuropsychiatric disorders. Nonetheless, the role of SPECT imaging remains critical to both research and clinical practice. The development of rational strategies for guiding the selection of imaging modalities flows from primarily the nature of the clinical or research question and the availability of appropriate radiopharmaceuticals. There has been extensive SPECT and PET work in Parkinson's disease (PD) which highlights the value of both these scintigraphic modalities. Three main areas of interest in PD include imaging for improving diagnostic accuracy, for monitoring the progression of disease, and for assessing the therapeutic efficacy of drugs with neuroprotective potential. The demands of the clinical or research question posed to imaging dictates the selection of radiotracer and imaging modality. Diagnosis of PD represents the easiest challenge with many imaging biomarkers showing high sensitivity for detecting abnormal reduction of dopaminergic function based on qualitative review of images. On the other hand, using imaging to evaluate treatments which purportedly slow the rate of disease progression, indicated by the reduction in the rate of loss in a quantitative imaging signal in patients studied over time, represents the most rigorous requirement of the imaging measure. In each of these applications presynaptic markers of dopaminergic function using SPECT and PET have been extremely valuable. Review of neuroimaging studies of PD provides a useful example of optimized approaches to clinical and research studies in neuropsychiatric disorders.
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Affiliation(s)
- J Seibyl
- Institute for Neurodegenerative Disorders, 60 Temple Street, New Haven, CT 06510, USA.
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Ravina B, Eidelberg D, Ahlskog JE, Albin RL, Brooks DJ, Carbon M, Dhawan V, Feigin A, Fahn S, Guttman M, Gwinn-Hardy K, McFarland H, Innis R, Katz RG, Kieburtz K, Kish SJ, Lange N, Langston JW, Marek K, Morin L, Moy C, Murphy D, Oertel WH, Oliver G, Palesch Y, Powers W, Seibyl J, Sethi KD, Shults CW, Sheehy P, Stoessl AJ, Holloway R. The role of radiotracer imaging in Parkinson disease. Neurology 2005; 64:208-15. [PMID: 15668415 DOI: 10.1212/01.wnl.0000149403.14458.7f] [Citation(s) in RCA: 253] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Radiotracer imaging (RTI) of the nigrostriatal dopaminergic system is a widely used but controversial biomarker in Parkinson disease (PD). Here the authors review the concepts of biomarker development and the evidence to support the use of four radiotracers as biomarkers in PD: [18F]fluorodopa PET, (+)-[11C]dihydrotetrabenazine PET, [123I]beta-CIT SPECT, and [18F]fluorodeoxyglucose PET. Biomarkers used to study disease biology and facilitate drug discovery and early human trials rely on evidence that they are measuring relevant biologic processes. The four tracers fulfill this criterion, although they do not measure the number or density of dopaminergic neurons. Biomarkers used as diagnostic tests, prognostic tools, or surrogate endpoints must not only have biologic relevance but also a strong linkage to the clinical outcome of interest. No radiotracers fulfill these criteria, and current evidence does not support the use of imaging as a diagnostic tool in clinical practice or as a surrogate endpoint in clinical trials. Mechanistic information added by RTI to clinical trials may be difficult to interpret because of uncertainty about the interaction between the interventions and the tracer.
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Affiliation(s)
- B Ravina
- National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD, USA.
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23
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Rosas HD, Koroshetz WJ, Chen YI, Skeuse C, Vangel M, Cudkowicz ME, Caplan K, Marek K, Seidman LJ, Makris N, Jenkins BG, Goldstein JM. Evidence for more widespread cerebral pathology in early HD: an MRI-based morphometric analysis. Neurology 2003; 60:1615-20. [PMID: 12771251 DOI: 10.1212/01.wnl.0000065888.88988.6e] [Citation(s) in RCA: 387] [Impact Index Per Article: 18.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
BACKGROUND Most clinical symptoms of Huntington disease (HD) have been attributed to striatal degeneration, but extrastriatal degeneration may play an important role in the clinical symptoms because postmortem studies demonstrate that almost all brain structures atrophy. OBJECTIVE To fully characterize the morphometric changes that occur in vivo in HD. METHODS High-resolution 1.5 mm T1-weighted coronal scans were acquired from 18 individuals in early to mid-stages of HD and 18 healthy age-matched controls. Cortical and subcortical gray and white matter were segmented using a semiautomated intensity contour-mapping algorithm. General linear models for correlated data of the volumes of brain regions were used to compare groups, controlling for age, education, handedness, sex, and total brain volumes. RESULTS Subjects with HD had significant volume reductions in almost all brain structures, including total cerebrum, total white matter, cerebral cortex, caudate, putamen, globus pallidus, amygdala, hippocampus, brainstem, and cerebellum. CONCLUSIONS Widespread degeneration occurs in early to mid-stages of HD, may explain some of the clinical heterogeneity, and may impact future clinical trials.
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Affiliation(s)
- H D Rosas
- Department of Neurology, Massachusetts General Hospital and Harvard Medical School, Boston, USA.
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Abstract
During the past decade, in vivo imaging of the nigrostriatal dopaminergic system has been developed as a research tool to monitor progressive dopaminergic neuron loss in Parkinson's disease (PD) and to assess the effect of medication on imaging outcomes. Recently two similar studies compared the effect of initial treatment with a dopamine agonist (pramipexole (CALM-PD CIT) or ropinirole (REAL-PET)) or levodopa on the progression of PD as measured by [123I]beta-CIT or [18F]Dopa imaging. These two clinical imaging studies targeting dopamine function with different imaging ligands and technology both demonstrate slowing in the rate of loss of [123I]beta-CIT or [18F]Dopa uptake in early PD patients treated with dopamine agonists compared with levodopa. The relative reduction in the per cent loss from baseline of [123I]beta-CIT uptake in the pramipexole versus the levodopa group was 47% at 22 months, 44% at 34 months and 37% at 46 months after initiating treatment. The relative reduction of 18F-dopa uptake in the ropinirole group versus the levodopa group was 35% at 24 months. These results should be very cautiously interpreted with regard to the effect of dopamine agonists or levodopa on clinical disease progression. These data highlight the need to compare imaging outcomes of dopamine neuronal loss with multiple meaningful clinical endpoints of disease progression in placebo controlled, larger and long-term studies.
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Affiliation(s)
- K Marek
- The Institute for Neurodegenerative Disorders, New Haven, CT 06510, USA.
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Marek K, Innis R, van Dyck C, Fussell B, Early M, Eberly S, Oakes D, Seibyl J. [123I]beta-CIT SPECT imaging assessment of the rate of Parkinson's disease progression. Neurology 2001; 57:2089-94. [PMID: 11739831 DOI: 10.1212/wnl.57.11.2089] [Citation(s) in RCA: 259] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
BACKGROUND [123I]beta-CIT and SPECT imaging of the dopamine transporter is a sensitive biomarker of PD onset and severity. OBJECTIVE In this study, the authors examine the change in [123I]beta-CIT uptake in sequential SPECT scans to assess the rate of progression of the dopaminergic terminal loss in patients with PD. METHODS Patients with PD (n = 32) and healthy controls (n = 24) recruited from the Yale Movement Disorders Center underwent repeat [123I]beta-CIT SPECT imaging during a 1- to 4-year period. The primary imaging outcome was the ratio of specific to nondisplaceable striatal activity. Disease severity was assessed by Hoehn and Yahr staging, and Unified Parkinson Disease Rating Scale after 12 hours off drug. RESULTS Sequential SPECT scans in PD subjects demonstrated a decline in [123I]beta-CIT striatal uptake of approximately 11.2%/year from the baseline scan, compared with 0.8%/year in the healthy controls (p < 0.001). Although [123I]beta-CIT striatal uptake in the PD subjects was correlated with clinical severity, the annual percentage loss of [123I]beta-CIT striatal uptake did not correlate with the annual loss in measures of clinical function. CONCLUSIONS - The rate of dopaminergic loss in PD is significantly greater than that of healthy controls, and [123I]beta-CIT SPECT imaging provides a quantitative biomarker for the progressive nigrostriatal dopaminergic degeneration in PD. As new protective and restorative therapies for PD are developed, dopamine transporter imaging offers the potential to provide an objective endpoint for these therapeutic trials.
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Affiliation(s)
- K Marek
- Department of Neurology, Yale University School of Medicine, New Haven, CT, USA.
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Jawor M, Dimter A, Marek K, Dudek D, Wojtyś A, Szproch A. [Anxiety-depressive disorder in women after hysterectomy. Own study]. Psychiatr Pol 2001; 35:771-80. [PMID: 11842609] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/23/2023]
Abstract
Hysterectomy is a surgical procedure that significantly affects the quality in which the operated person views herself, lowers self-esteem and brings about changes in the quality of life. The results of the presented study show the necessity of a more accurate and specific dealing with the problem of affective disorders and anxiety states in women who have undergone such an operation. The course of the post-operative period and the return of the patients to full health are largely affected by their psychological state and the quality of life they experience. A successful (in a medical sense) surgical procedure is not a guarantee of the bringing back health in a holistic sense. The results of studies and clinical observations show that half of the group of women operated suffer from anxiety-depressive disorders as a cause of the operation, and a quarter of all those operated require specialist help. No psychological preparation for the operation, absence of closest people in the decision making before the operation, lack of knowledge on the surgical operational-span, lacking psychological aid after the operation--all these can significantly affect the rehabilitation and the process of regaining the social functions. It appears vital to introduce a psychological programme and special care taking of the women who declare having symptoms which appear to lead to the development of depressive disorders. The appearance of depressive symptoms post-operatively as well as the earlier presence of affective disorder symptoms can be prognostic in the further development of the disorder. The early diagnosis of the affective disorder and the higher level of anxiety in women post-hysterectomy and the fast application of appropriate treatment can inhibit further symptom elevation and persistence. Catamnestic studies on women post-hysterectomy due to non-oncologic causes will allow seeing the dynamics of the changes in the affective disorders at different time intervals from the operation.
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Affiliation(s)
- M Jawor
- Kliniki Psychiatrii Dorosłych CM UJ w Krakowie
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Marek K, Dimter A, Jawor M, Dudek D. [Anxiety-depressive disorders in women after hysterectomy. Literature review]. Psychiatr Pol 2001; 35:763-9. [PMID: 11842608] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/23/2023]
Abstract
In the common opinion amongst woman, the surgical removal of the uterus and ovaries can be a cause of limited physical and sexual activity and have an effect on their attractiveness. The majority of women after hysterectomy can be permanently depressed and can also show symptoms of mixed anxiety-depressive disorder. The review of literature allows for an assumption that the topic of anxiety and depression should not be underrated, by treating it as an exaggerated theme, as some researchers do. By considering the research quoted in this paper the collected directions of diagnostic and therapeutic procedures undertaken by the psychiatrist and psychologist can be used before the planned operation. Special consideration must be given to patients who have a history of affective disorders or sexual abuse. Pharmacotherapy and psychotherapy should applied in order to prevent post-operative affective disorders.
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Affiliation(s)
- K Marek
- Kliniki Psychiatrii Dorosłych CM UJ w Krakowie
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Goldstein S, Friedman JH, Innis R, Seibyl J, Marek K. Hemi-parkinsonism due to a midbrain arteriovenous malformation: dopamine transporter imaging. Mov Disord 2001; 16:350-3. [PMID: 11295793 DOI: 10.1002/mds.1047] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- S Goldstein
- Department of Neurology, Brown University School of Medicine, Providence, RI 02860, USA
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Shoulson I, Penney J, McDermott M, Schwid S, Kayson E, Chase T, Fahn S, Greenamyre JT, Lang A, Siderowf A, Pearson N, Harrison M, Rost E, Colcher A, Lloyd M, Matthews M, Pahwa R, McGuire D, Lew MF, Schuman S, Marek K, Broshjeit S, Factor S, Brown D, Feigin A, Mazurkiewicz J, Ford B, Jennings D, Dilllon S, Comella C, Blasucci L, Janko K, Shulman L, Wiener W, Bateman-Rodriguez D, Carrion A, Suchowersky O, Lafontaine AL, Pantella C, Siemers E, Belden J, Davies R, Lannon M, Grimes D, Gray P, Martin W, Kennedy L, Adler C, Newman S, Hammerstad J, Stone C, Lewitt P, Bardram K, Mistura K, Miyasaki J, Johnston L, Cha JH, Tennis M, Panniset M, Hall J, Tetrud J, Friedlander J, Hauser R, Gauger L, Rodnitzky R, Deleo A, Dobson J, Seeberger L, Dingmann C, Tarsy D, Ryan P, Elmer L, Ruzicka D, Stacy M, Brewer M, Locke B, Baker D, Casaceli C, Day D, Florack M, Hodgeman K, Laroia N, Nobel R, Orme C, Rexo L, Rothenburgh K, Sulimowicz K, Watts A, Wratni E, Tariot P, Cox C, Leventhal C, Alderfer V, Craun AM, Frey J, McCree L, McDermott J, Cooper J, Holdich T, Read B. A randomized, controlled trial of remacemide for motor fluctuations in Parkinson's disease. Neurology 2001; 56:455-62. [PMID: 11222787 DOI: 10.1212/wnl.56.4.455] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
BACKGROUND Preclinical studies suggest that glutamate antagonists help ameliorate motor fluctuations in patients with PD treated with levodopa. METHODS In a multicenter, randomized, double-blind, placebo-controlled, parallel-group, dose-ranging study, the authors assessed the safety, tolerability, and efficacy of the glutamate receptor blocker remacemide hydrochloride in 279 patients with motor fluctuations treated with levodopa. The primary objective was to assess the short-term tolerability and safety of four dosage levels of remacemide during 7 weeks of treatment. Patients were also monitored with home diaries and the Unified PD Rating Scale (UPDRS) to collect preliminary data on treatment efficacy. RESULTS Remacemide was well tolerated up to a dosage of 300 mg/d on a twice daily schedule and 600 mg/d on a four times daily schedule. The most common dosage-related adverse events were dizziness and nausea, as observed in previous studies of remacemide. The percent "on" time and motor UPDRS scores showed trends toward improvement in the patients treated with 150 and 300 mg/d remacemide compared with placebo-treated patients, although these improvements were not significant. CONCLUSION Remacemide is a safe and tolerable adjunct to dopaminergic therapy for patients with PD and motor fluctuations. Although this study had limited power to detect therapeutic effects, the observed improvement is consistent with studies of non-human primates with 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine-induced parkinsonian signs and symptoms. Additional studies are warranted to confirm these results over an extended period of observation, and to explore the potential neuroprotective effects of remacemide in slowing the progression of PD.
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Chui D, Sellakumar G, Green R, Sutton-Smith M, McQuistan T, Marek K, Morris H, Dell A, Marth J. Genetic remodeling of protein glycosylation in vivo induces autoimmune disease. Proc Natl Acad Sci U S A 2001; 98:1142-7. [PMID: 11158608 PMCID: PMC14722 DOI: 10.1073/pnas.98.3.1142] [Citation(s) in RCA: 162] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
Autoimmune diseases are among the most prevalent of afflictions, yet the genetic factors responsible are largely undefined. Protein glycosylation in the Golgi apparatus produces structural variation at the cell surface and contributes to immune self-recognition. Altered protein glycosylation and antibodies that recognize endogenous glycans have been associated with various autoimmune syndromes, with the possibility that such abnormalities may reflect genetic defects in glycan formation. We show that mutation of a single gene, encoding alpha-mannosidase II, which regulates the hybrid to complex branching pattern of extracellular asparagine (N)-linked oligosaccharide chains (N-glycans), results in a systemic autoimmune disease similar to human systemic lupus erythematosus. alpha-Mannosidase II-deficient autoimmune disease is due to an incomplete overlap of two conjoined pathways in complex-type N-glycan production. Lymphocyte development, abundance, and activation parameters are normal; however, serum immunoglobulins are increased and kidney function progressively falters as a disorder consistent with lupus nephritis develops. Autoantibody reactivity and circulating immune complexes are induced, and anti-nuclear antibodies exhibit reactivity toward histone, Sm antigen, and DNA. These findings reveal a genetic cause of autoimmune disease provoked by a defect in the pathway of protein N-glycosylation.
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Affiliation(s)
- D Chui
- Glycobiology Research and Training Center, Howard Hughes Medical Institute, Department of Cellular and Molecular Medicine, University of California at San Diego, La Jolla, CA 92093, USA
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Trafton JA, Abbadie C, Marek K, Basbaum AI. Postsynaptic signaling via the [mu]-opioid receptor: responses of dorsal horn neurons to exogenous opioids and noxious stimulation. J Neurosci 2000; 20:8578-84. [PMID: 11102461 PMCID: PMC6773096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/18/2023] Open
Abstract
Although both pre- and postsynaptic mechanisms have been implicated in the analgesia produced by mu-opioids at the spinal cord, it is not known under what conditions these different controls come into play. Because the mu-opioid receptor (MOR) can be visualized in individual lamina II excitatory interneurons and internalizes into endosomes on ligand binding, we tested whether MOR internalization could be monitored and used to measure postsynaptic MOR signaling. To test whether endogenous opioids modulate these lamina II interneurons during noxious stimulation, we next assessed the magnitude of postsynaptic MOR internalization under a variety of nociceptive conditions. As observed in other systems, we show that MOR internalization in dorsal horn interneurons is demonstrated readily in response to opioid ligands. The MOR internalization is dose-dependent, with a similar dose-response to that observed for opioid-induced increases in potassium conductance. We demonstrate that MOR internalization in lamina II neurons correlates precisely with the extent of analgesia produced by intrathecal DAMGO. These results suggest that MOR internalization provides a good marker of MOR signaling in the spinal cord and that postsynaptic MORs on lamina II interneurons likely participate in the analgesia that is produced by exogenous opioids. We found, however, that noxious stimuli, under normal or inflammatory conditions, did not induce MOR internalization. Thus, endogenous enkephalins and endomorphins, thought to be released during noxious peripheral stimuli, do not modulate nociceptive messages via postsynaptic MORs on lamina II interneurons. We suggest that any endogenous opioids that are released by noxious stimuli target presynaptic MORs or delta-opioid receptors.
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Affiliation(s)
- J A Trafton
- Departments of Anatomy and Physiology and W. M. Keck Foundation for Integrative Neuroscience, University of California San Francisco, San Francisco, California 94143, USA
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Affiliation(s)
- K Marek
- Department of Neurology, Diagnostic Radiology, Yale University School of Medicine, New Haven, CT 06510, USA.
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Abstract
BACKGROUND Coal production is one of the largest industries in Poland and incidence of coal miners' pneumoconiosis is high. METHODS Data concerning the epidemiology of coal miners' pneumoconiosis stem from the national register and previous investigations performed in Poland. Improvements in medical and technical methodologies for the prevention of pneumoconiosis is discussed. RESULTS Analysis of the dust concentration measurements shows that TLV values are exceeded in 90% of underground workplaces. The number of new pneumoconiosis cases diagnosed annually ranges from 400-800 and has been showing a diminishing tendency in the last five years. Recently, a new system of medical and technical prevention has been introduced in seven collieries. CONCLUSIONS The current epidemiological situation of coal miners pneumoconiosis in Poland is unfavorable and needs vast improvement.
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Affiliation(s)
- K Marek
- Institute of Occupational Medicine and Environmental Health, Clinical Department, Sosnowiec, Poland.
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Seibyl JP, Marek K, Sheff K, Zoghbi S, Baldwin RM, Charney DS, van Dyck CH, Innis RB. Iodine-123-beta-CIT and iodine-123-FPCIT SPECT measurement of dopamine transporters in healthy subjects and Parkinson's patients. J Nucl Med 1998; 39:1500-8. [PMID: 9744331] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
UNLABELLED Iodine-123-beta-carbomethoxy-3 beta-(4-iodophenyltropane) (CIT) has been used as a probe of dopamine transporters in Parkinson's disease patients using SPECT. This tracer has a protracted period of striatal uptake enabling imaging 14-24 hr postinjection for stable quantitative measures of dopamine transporters, and it binds with nanomolar affinity to the serotonin transporter. Iodine-123 fluoropropyl (FP)CIT is an analog of [123I]-beta-CIT and has been shown to achieve peak tracer uptake in the brain within hours postinjection and to provide greater selectivity for the dopamine transporter. The purpose of the present study was to compare [123I]-beta-CIT with [123I]-FPCIT in a within-subject design. METHODS Six Parkinson's disease patients and five healthy control subjects participated in one [123I]-beta-CIT and one [123I]-FPCIT SPECT scan separated by 7-21 days. Controls were imaged at 24 hr postinjection 222 MBq (6 mCi) [123I]-beta-CIT and serially from 1-6 hr postinjection 333 MBq (9 mCi) [123I]-FPCIT. Two imaging outcome measures were evaluated: (a) the ratio of specific striatal activity to nondisplaceable uptake, also designated V"3, at each imaging time point; and (b) the rate of striatal washout of radiotracer expressed as a percent reduction per hr for [123I]-FPCIT. In addition, venous plasma was obtained from the five control subjects after the [123I]-FPCIT injection for analysis of radiometabolites. RESULTS Both [123I]-FPCIT and [123I]-beta-CIT demonstrated decreased striatal uptake in Parkinson's disease patients compared with the controls with a mean of V"3=3.5 and 6.7 for [123I]-beta-CIT (Parkinson's disease and controls, respectively) and a mean of V"3=1.34 and 3.70 for [123I]-FPCIT (Parkinson's disease and controls, respectively). For [123I]-beta-CIT, the mean Parkinson's disease values represented 52% of the control uptake, while the mean [123I]-FPCIT value for Parkinson's disease patients was 37% of the control values. Analysis of [123I]-FPCIT time-activity curves for specific striatal counts showed washout rates of 8.2%/hr for Parkinson's disease and 4.9%/hr for controls. CONCLUSION These data suggest that SPECT imaging with [123I]-FPCIT visually demonstrates reductions in striatal uptake similar to [123I]-beta-CIT. iodine-123-FPCIT washed out from striatal tissue 15-20 times faster than [123I]-beta-CIT, and estimates of dopamine transporter loss in Parkinson's disease patients were higher for [123I]-FPCIT than for [123I]-beta-CIT. This was most likely due to the faster rate of striatal washout and establishment of transient equilibrium binding conditions at the dopamine transporter, which the modeling theory suggests produces an overestimation of dopamine transporter density with relatively greater overestimates in healthy control subjects by [123I]-FPCIT.
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Affiliation(s)
- J P Seibyl
- Department of Diagnostic Radiology, Yale University School of Medicine, New Haven, Connecticut 06510, USA
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Button P, Androwich I, Hibben L, Kern V, Madden G, Marek K, Westra B, Zingo C, Mead CN. Challenges and issues related to implementation of nursing vocabularies in computer-based systems. J Am Med Inform Assoc 1998; 5:332-4. [PMID: 9670129 PMCID: PMC61309 DOI: 10.1136/jamia.1998.0050332] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/1998] [Accepted: 03/19/1998] [Indexed: 11/04/2022] Open
Abstract
As key stakeholders from the clinical setting and vendor communities, the authors share a summary of their collective experience related to the challenges and issues associated with implementing the vocabularies recognized by the American Nurses Association in several installations of commercially available clinical information systems. Although the focus of the article is on summarizing the challenges and issues, it is of note that the authors' experiences across care settings suggest that the experience and effort of using one of the ANA-recognized vocabularies in a computer-based system are essentially worthwhile and positive. The issues and challenges fall into two categories: 1) those related to the developmental status of nursing vocabularies, and 2) those related to the adoption or implementation of new technology.
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Affiliation(s)
- P Button
- Oceania, Inc., Oakland, California, USA.
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Rybak-Akimova E, Marek K, Masarwa M, Busch D. The dynamics of formation of the O2-CoII bond in the cobalt(II) cyclidene complexes. Inorganica Chim Acta 1998. [DOI: 10.1016/s0020-1693(97)05835-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Kowalski ML, Pawliczak R, Woźniak J, Siuda K, Grzegorczyk J, Pietrzak M, Kozłowski Z, Marek K. Culture of human nasal epithelial cells from nasal polyps on collagen matrix. Arch Immunol Ther Exp (Warsz) 1998; 46:51-7. [PMID: 9510947] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Epithelial cell cultures became an experimental model employed for both animal and human studies. We established a modified method of culture of human nasal epithelial cells from nasal polyps using serum-free, hormonally supplemented Ham's F-12 medium and Vitrogen 100 collagen matrix. Cells reached confluent monolayer structures in 5 to 7 days (mean time 6 +/- 0.89 days) of culture. The confluent cultures consisted of pure epithelial cells, which was confirmed by light and electron microscopy, and immunohistochemical staining with anticytokeratin antibody. The success ratio of cultures was 61.5%. The culture system described is efficient enough to provide pure epithelial cells for further functional studies.
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Affiliation(s)
- M L Kowalski
- Department of Clinical Immunology and Allergy, University Medical School, Lódź, Poland
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38
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Seibyl JP, Marek K, Sheff K, Baldwin RM, Zoghbi S, Zea-Ponce Y, Charney DS, van Dyck CH, Hoffer PB, Innis RB. Test/retest reproducibility of iodine-123-betaCIT SPECT brain measurement of dopamine transporters in Parkinson's patients. J Nucl Med 1997; 38:1453-9. [PMID: 9293807] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
UNLABELLED Iodine-123-beta-CIT has been used as a probe of dopamine transporters in Parkinson's disease patients using SPECT. We studied the test/retest reproducibility of SPECT measures in Parkinson's disease patients and healthy controls obtained after injection of [123I])beta-CIT in part to assess the utility of this tracer for longitudinal evaluation of striatal dopamine transporters as a marker of disease progression. METHODS Seven Parkinson's disease patients and seven healthy control subjects participated in two [123I]beta-CIT SPECT scans separated by 7-21 days. Subjects were imaged at 24 hr post injection of 360 MBq (9.7 mCi) of [123I]beta-CIT. Two outcome measures were evaluated; 1) the ratio of specific striatal (activity associated with DA transporter binding) to nondisplaceable uptake, also designated V3," and 2) the total specific striatal uptake (%SSU) expressed as a percentage of injected radiotracer dose. For both measures, test/retest variability was calculated as the absolute difference of test minus retest divided by the mean of test/retest and expressed as a percent. In addition, the reproducibility of left and right striatal asymmetry and putamen:caudate ratios were determined. RESULTS The two outcome measures demonstrated excellent test/retest reproducibility for both the Parkinson's disease and healthy subject groups with variability of striatal V3" = 16.8 +/- 13.3% and percent striatal uptake = 6.8 +/- 3.4% for Parkinson's disease patients and V3" = 12.8 +/- 8.9% and %SSU = 7.0 +/- 3.9% for control subjects. There were no statistically significant differences in test/retest variability between control subjects and Parkinson's disease patients for either outcome measure. The reproducibility of left/right asymmetry indices and putamen-to-caudate ratios showed no patient versus control subject differences. The asymmetry index had greater test/retest variability than the other outcome measures. CONCLUSION These data suggest that SPECT imaging performed at 24 hr postinjection of [123I]beta-CIT permits calculation of reliable and reproducible measures of dopamine transporters in both Parkinson's disease patients and control subjects and supports the feasibility of using [123I]beta-CIT in the evaluation of disease progression in Parkinson's disease.
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Affiliation(s)
- J P Seibyl
- Department of Diagnostic Radiology, Yale University School of Medicine, New Haven, Connecticut 06510, USA
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39
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Marek K, Kneedler J, Zielstorff R, Delaney C, Marr P, Averill C, Millholland DK. Nursing Information and Data Set Evaluation Center. Stud Health Technol Inform 1996; 46:257-62. [PMID: 10184814] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
Abstract
The American Nurses Association (ANA) has established the Nursing Information and Data Set Evaluation Center (NIDSEC). The purpose of this Center is to develop and disseminate standards pertaining to information systems that support the documentation of nursing practice, and to evaluate voluntarily submitted information systems against these standards. The target audience for these standards includes both consumers and vendors of clinical information systems. The need for an evaluation center arises out of a long history of calls for standards pertaining to nursing data and to information systems. These calls have come from the Secretary of Health and Human Services Commission on Nursing, the National Commission on Nursing Implementation Project (NICNIP). Standards will be developed to evaluate the completeness, accuracy and appropriateness of four dimensions of nursing data sets and the systems that contain them: 1) Nomenclature; 2) Clinical Content; 3) Clinical Data Repository; and 4) General System Characteristics.
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Affiliation(s)
- K Marek
- NIDSEC Advisory Committee Members, ANA, Washington, DC 20024-2571, USA
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Abstract
A mortality cohort study was carried out on 11,224 men with pneumoconiosis diagnosed during the period 1970-1985. The cohort was selected from among subjects entered into the National Register of Occupational Diseases and included 7,065 coal miners, 924 employees of underground work enterprises, 1,796 workers of the metallurgical industry and iron and nonferrous foundries, as well as 1,439 refractory materials, china, ceramics, and quarry workers. The cohort was traced up to the end of 1991. The mortality of all groups enrolled in the study, as compared with that of general male population of Poland, showed a statistically significant excess of overall mortality (SMRs ranging from 105; 95% confidence interval [CI]: 100-110 to 136; CI: 121-153) as well as a great excess of deaths from diseases of the respiratory system (SMRs from 383; 95% CI: 345-424 to 588; 95% CI: 457-744). In workers of the metallurgical industry, foundries, and those from refractory materials, china, and ceramics manufacturing plants as well as quarries, a statistically significant excess of deaths from infectious diseases (mostly tuberculosis) was found (SMRs: 503; 95% CI: 364-677 and 286; 95% CI: 177-437, respectively). Mortality from lung cancer was significantly elevated only in the group of metallurgical industry and iron and nonferrous foundry workers (SMR: 159; 95% CI: 124-201). In the remaining subcohorts, no significant excess of deaths from lung cancer was noted. The study does not support the hypothesis on the role of exposure to crystalline silica in the induction of lung cancer. Significantly lower mortality was seen for diseases of the circulatory system (SMR: 89; 95% CI: 82-96), hypertensive disease (SMR: 63; 95% CI: 38-98), cerebrovascular disease (SMR: 79; 95% CI: 62-99), atherosclerosis (SMR: 79; 95% CI: 66-93), and injuries and poisonings (SMR: 50; 95% CI: 38-64) in coal miners. In addition, lower mortality was noted for cerebrovascular disease (SMR: 56; 95% CI: 32-91) and injuries and poisonings (SMR: 34; 95% CI: 17-61) in metallurgical industry and iron and nonferrous foundry workers.
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Affiliation(s)
- Z Starzyński
- Department of Epidemiology, Nofer Institute of Occupational Medicine, Lodz, Poland
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Starzyński Z, Marek K, Kujawska A, Szymczak W. Mortality among coal miners with pneumoconiosis in Poland. Int J Occup Med Environ Health 1996; 9:279-89. [PMID: 9117187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
A mortality cohort study was carried out on 7,065 coal miners with pneumoconiosis first diagnosed during the years of 1970-85. The cohort was selected from among subjects entered into the National Register of Occupational Diseases and followed up through to the end of 1991. The general male population of Poland was considered as a reference group. The PYRS-3 programme was used to identify, by means of standardized mortality ratios (SMRs), total and selected cause-specific mortality. An analysis revealed significantly elevated total mortality (SMR = 105; 95% confidence interval (CI): 100-110) in the whole cohort of coal miners. The risk of selected cause-specific mortality was significantly enhanced due to diseases of the respiratory system among which pneumoconiosis predominated (SMR = 383; 95% CI: 345-424). While mortality from all diseases of the circulatory system (SmR = 89; CI: 82-96), arterial hypertension (SMR = 63; 95% CI: 38-98), cerebrovascular diseases (SMR = 79; 95% CI: 62-99), atherosclerosis (SMR = 79; 95% CI: 66-93), and injury in poisoning (SMR = 50; 95% CI: 38-64) was significantly lower. The risk of death from malignant neoplasm of lung in the whole study population as well as in individual groups and categories of coal miners with pneumoconiosis, which varied in the risk of pneumoconiosis and the level of exposure to ionizing radiation, was not increased.
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Affiliation(s)
- Z Starzyński
- Department of Epidemiology, Nofer Institute of Occupational Medicine, Lodz, Poland
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Karasek M, Marek K, Zielinska A, Swietoslawski J, Bartsch H, Bartsch C. Serial transplants of 7,12-dimethylbenz[a]anthracene-induced mammary tumors in Fischer rats as model system for human breast cancer. 3. Quantitative ultrastructural studies of the pinealocytes and plasma melatonin concentrations in rats bearing an advanced passage of the tumor. Biol Signals 1994; 3:302-6. [PMID: 7728193 DOI: 10.1159/000109558] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
The aim of the present study was to investigate the ultrastructure of pinealocytes and plasma melatonin concentrations in Fischer rats bearing an advanced (14th) passage 7,12-dimethylbenz[a]anthracene-induced mammary tumor. Quantitative ultrastructural analysis of the cell size and relative volumes of various cell organelles as well as the number of dense-core vesicles was performed in pinealocytes of the animals killed either during the daytime (15.00 h) or at night (3.00 h) 1 month after tumor transplantation. No significant differences between control and tumor-bearing animals were observed either during the daytime or at night. However, plasma melatonin concentrations in tumor-bearing rats killed at 3.00 h were suppressed by 35% (p < 0.025) when compared to the control animals killed at the same time.
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Affiliation(s)
- M Karasek
- Department of Pathomorphology, Medical University of Lodz, Poland
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Leckman JF, de Lotbinière AJ, Marek K, Gracco C, Scahill L, Cohen DJ. Severe disturbances in speech, swallowing, and gait following stereotactic infrathalamic lesions in Gilles de la Tourette's syndrome. Neurology 1993; 43:890-4. [PMID: 8492943 DOI: 10.1212/wnl.43.5.890] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
A 40-year-old man with severe Gilles de la Tourette's syndrome characterized by forceful self-injurious motor tics, coprolalia, and obsessive-compulsive disorder had bilateral anterior cingulotomies and bilateral infrathalamic lesions placed stereotactically during two neurosurgical procedures. During the second procedure, the patient acutely developed a marked dysarthria. Postoperatively, he manifested a severe gait disturbance with postural instability, bradykinesia, axial rigidity, micrographia, and a profound swallowing disorder. MRI showed asymmetric (left > right) low-density areas in an infrathalamic region as well as low-density areas bilaterally in the anterior cingulate gyri. Although the patient's tic and obsessive-compulsive symptoms improved, the self-injurious motor tics along with other motor and phonic tics have recurred. The patient's speech remains largely unintelligible 8 months following the last surgical procedure, and the other neurologic deficits remain unchanged.
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Affiliation(s)
- J F Leckman
- Child Study Center, Yale University School of Medicine, New Haven, CT 06510
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Marek K, Zejda J. [Effect of asbestos on health]. Pneumonol Pol 1990; 58:155-62. [PMID: 2392379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- K Marek
- Klinika Chorób Zawodowych Instytutu Medycyny Pracy, Sosnowiec
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McArthur JC, Marek K, Pestronk A, McArthur J, Peroutka SJ. Nifedipine in the prophylaxis of classic migraine: a crossover, double-masked, placebo-controlled study of headache frequency and side effects. Neurology 1989; 39:284-6. [PMID: 2644581 DOI: 10.1212/wnl.39.2.284] [Citation(s) in RCA: 26] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Twenty-four patients with classic migraine attacks were treated with either nifedipine or placebo for up to 12 weeks. No significant differences were observed between the nifedipine (2.1 +/- 0.2) and placebo (2.3 +/- 0.2) treatment groups in the monthly frequency of headaches. However, the incidence of side effects was significantly greater (p less than 0.001) in the nifedipine (54% of patients) than in the placebo (8% of patients) treatment groups.
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Affiliation(s)
- J C McArthur
- Department of Neurology, Johns Hopkins Hospital, Baltimore, MD
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Marek K. Classification of outcome measures in nursing care. ANA Publ 1989:37-42. [PMID: 2929891] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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Karasek M, Marek K, Pévet P. Influence of a short light pulse at night on the ultrastructure of the rat pinealocyte: a quantitative study. Cell Tissue Res 1988; 254:247-9. [PMID: 3197081 DOI: 10.1007/bf00220041] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Although it is generally known that light strongly influences N-acetyltransferase activity and melatonin production in the pineal gland, little information is available concerning morphological changes following light exposure. As exposure of rats to a short light pulse at night rapidly depresses melatonin synthesis, we decided to determine whether this experimental condition produces rapid changes in the pinealocyte organelles. A 30-min light pulse at night (six hours after lights out) provoked rapid changes in the relative volumes of some pinealocyte organelles. The volume fractions of mitochondria, Golgi apparatus and lipid droplets, and the numbers of dense-core vesicles and "synaptic" ribbons decreased, whereas the volume fraction of lysosomes increased. There were no differences in the volumes of granular endoplasmic reticulum and vacuoles containing flocculent material in those animals exposed to light compared with control animals. These results indicate that a short light pulse at night causes ultrastructural changes that can be interpreted as morphological features of diminished activity of pinealocytes.
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Affiliation(s)
- M Karasek
- Department of Pathological Anatomy, School of Medicine, Lodz, Poland
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Marek K. [Pneumoconiosis]. Pneumonol Pol 1987; 55:428-34. [PMID: 3320987] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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Abstract
Visiting Nurse Service, Inc (VNS), of Akron, Ohio, has provided transfusion therapy in the home since January 1984. Home transfusion has proved a valuable alternative to inpatient treatment and to expensive, exhausting ambulance trips to the hospital for outpatient treatment for selected homebound patients, many of whom are terminally ill. The VNS program is based on detailed policies and procedures that include patient referral criteria, RN education, patient education, blood procurement and labelling, and protocols for transfusion complications. Recognizing the need for patient safety, VNS has a quality assurance program that provides for continuous monitoring and evaluation of the home transfusion therapy, especially of any adverse reactions that occur.
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