1
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Safarpour D, Stover N, Shprecher DR, Hamedani AG, Pfeiffer RF, Parkman HP, Quigley EM, Cloud LJ. Consensus practice recommendations for management of gastrointestinal dysfunction in Parkinson disease. Parkinsonism Relat Disord 2024:106982. [PMID: 38729797 DOI: 10.1016/j.parkreldis.2024.106982] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Revised: 04/24/2024] [Accepted: 04/26/2024] [Indexed: 05/12/2024]
Abstract
BACKGROUND Gastrointestinal (GI) dysfunction is a common non-motor feature of Parkinson disease (PD). GI symptoms may start years before the onset of motor symptoms and impair quality of life. Robust clinical trial data is lacking to guide screening, diagnosis and treatment of GI dysfunction in PD. OBJECTIVE To develop consensus statements on screening, diagnosis, and treatment of GI dysfunction in PD. METHODS The application of a modified Delphi panel allowed for the synthesis of expert opinions into clinical statements. Consensus was predefined as a level of agreement of 100 % for each item. Five virtual Delphi rounds were held. Two movement disorders neurologists reviewed the literature on GI dysfunction in PD and developed draft statements based on the literature review. Draft statements were distributed among the panel that included five movement disorder neurologists and two gastroenterologists, both experts in GI dysmotility and its impact on PD symptoms. All members reviewed the statements and references in advance of the virtual meetings. In the virtual meetings, each statement was discussed, edited, and a vote was conducted. If there was not 100 % consensus, further discussions and modifications ensued until there was consensus. RESULTS Statements were developed for screening, diagnosis, and treatment of common GI symptoms in PD and were organized by anatomic segments: oral cavity and esophagus, stomach, small intestine, and colon and anorectum. CONCLUSIONS These consensus recommendations offer a practical framework for the diagnosis and treatment of GI dysfunction in PD.
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Affiliation(s)
- Delaram Safarpour
- Department of Neurology, School of Medicine, Oregon Health & Science University, Portland, OR, USA.
| | - Natividad Stover
- Department of Neurology, University of Alabama at Birmingham, Birmingham, AL, USA
| | | | - Ali G Hamedani
- Departments of Neurology, Ophthalmology, and Epidemiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Ronald F Pfeiffer
- Department of Neurology, School of Medicine, Oregon Health & Science University, Portland, OR, USA
| | - Henry P Parkman
- Section of Gastroenterology, Department of Medicine, Temple University School of Medicine, Philadelphia, PA, USA
| | - Eamonn Mm Quigley
- Lynda K and David M Underwood Center for Digestive Disorders, Houston Methodist Hospital and Weill Cornell Medical College, Houston, TX, USA
| | - Leslie J Cloud
- Department of Neurology, Virginia Commonwealth University, Richmond, VA, USA
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2
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Safarpour D, Pfeiffer RF. Neurogastroenterology. Semin Neurol 2023; 43:494. [PMID: 37703886 DOI: 10.1055/s-0043-1772584] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/15/2023]
Affiliation(s)
- Delaram Safarpour
- Department of Neurology, Oregon Health & Science University, Portland, Oregon
| | - Ronald F Pfeiffer
- Department of Neurology, Oregon Health & Science University, Portland, Oregon
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3
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Talman LS, Pfeiffer RF. Movement Disorders and the Gut: A Review. Mov Disord Clin Pract 2022; 9:418-428. [PMID: 35586541 PMCID: PMC9092751 DOI: 10.1002/mdc3.13407] [Citation(s) in RCA: 3] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Revised: 12/20/2021] [Accepted: 12/21/2021] [Indexed: 11/07/2022] Open
Abstract
There is a close link between multiple movement disorders and gastrointestinal dysfunction. Gastrointestinal symptoms may precede the development of the neurologic syndrome or may arise following the neurologic presentation. This review will provide an overview of gastrointestinal accompaniments to several well-known as well as lesser known movement disorders. It will also highlight several disorders which may not be considered primary movement disorders but have an overlapping presentation of both gastrointestinal and movement abnormalities.
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Affiliation(s)
- Lauren S. Talman
- Department of NeurologyOregon Health & Science UniversityPortlandOregonUSA
| | - Ronald F. Pfeiffer
- Department of NeurologyOregon Health & Science UniversityPortlandOregonUSA
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4
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Prudencio M, Garcia-Moreno H, Jansen-West KR, Al-Shaikh RH, Gendron TF, Heckman MG, Spiegel MR, Carlomagno Y, Daughrity LM, Song Y, Dunmore JA, Byron N, Oskarsson B, Nicholson KA, Staff NP, Gorcenco S, Puschmann A, Lemos J, Januário C, LeDoux MS, Friedman JH, Polke J, Labrum R, Shakkottai V, McLoughlin HS, Paulson HL, Konno T, Onodera O, Ikeuchi T, Tada M, Kakita A, Fryer JD, Karremo C, Gomes I, Caviness JN, Pittelkow MR, Aasly J, Pfeiffer RF, Veerappan V, Eggenberger ER, Freeman WD, Huang JF, Uitti RJ, Wierenga KJ, Marin Collazo IV, Tipton PW, van Gerpen JA, van Blitterswijk M, Bu G, Wszolek ZK, Giunti P, Petrucelli L. Toward allele-specific targeting therapy and pharmacodynamic marker for spinocerebellar ataxia type 3. Sci Transl Med 2021; 12:12/566/eabb7086. [PMID: 33087504 DOI: 10.1126/scitranslmed.abb7086] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Accepted: 06/30/2020] [Indexed: 12/13/2022]
Abstract
Spinocerebellar ataxia type 3 (SCA3), caused by a CAG repeat expansion in the ataxin-3 gene (ATXN3), is characterized by neuronal polyglutamine (polyQ) ATXN3 protein aggregates. Although there is no cure for SCA3, gene-silencing approaches to reduce toxic polyQ ATXN3 showed promise in preclinical models. However, a major limitation in translating putative treatments for this rare disease to the clinic is the lack of pharmacodynamic markers for use in clinical trials. Here, we developed an immunoassay that readily detects polyQ ATXN3 proteins in human biological fluids and discriminates patients with SCA3 from healthy controls and individuals with other ataxias. We show that polyQ ATXN3 serves as a marker of target engagement in human fibroblasts, which may bode well for its use in clinical trials. Last, we identified a single-nucleotide polymorphism that strongly associates with the expanded allele, thus providing an exciting drug target to abrogate detrimental events initiated by mutant ATXN3. Gene-silencing strategies for several repeat diseases are well under way, and our results are expected to improve clinical trial preparedness for SCA3 therapies.
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Affiliation(s)
- Mercedes Prudencio
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL 32224, USA.,Neuroscience Graduate Program, Mayo Clinic Graduate School of Biomedical Sciences, Jacksonville, FL 32224, USA
| | - Hector Garcia-Moreno
- Ataxia Centre, Department of Clinical and Movement Neurosciences, UCL Queen Square Institute of Neurology, London WC1N 3BG, UK.,Ataxia Centre, National Hospital for Neurology and Neurosurgery, University College London Hospitals NHS Trust, London WC1N 3BG, UK
| | | | | | - Tania F Gendron
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL 32224, USA.,Neuroscience Graduate Program, Mayo Clinic Graduate School of Biomedical Sciences, Jacksonville, FL 32224, USA
| | - Michael G Heckman
- Division of Biomedical Statistics and Informatics, Mayo Clinic, Jacksonville, FL 32224, USA
| | - Matthew R Spiegel
- Division of Biomedical Statistics and Informatics, Mayo Clinic, Jacksonville, FL 32224, USA
| | - Yari Carlomagno
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL 32224, USA.,Neuroscience Graduate Program, Mayo Clinic Graduate School of Biomedical Sciences, Jacksonville, FL 32224, USA
| | | | - Yuping Song
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL 32224, USA
| | - Judith A Dunmore
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL 32224, USA
| | - Natalie Byron
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL 32224, USA
| | - Björn Oskarsson
- Department of Neurology, Mayo Clinic, Jacksonville, FL 32224, USA
| | - Katharine A Nicholson
- Sean M. Healey and AMG Center for ALS, Massachusetts General Hospital (MGH), Boston, MA 02114, USA
| | - Nathan P Staff
- Department of Neurology, Mayo Clinic, Rochester, MN 55905, USA
| | - Sorina Gorcenco
- Lund University, Skåne University Hospital, Department of Clinical Sciences Lund, Neurology, Lund 22185, Sweden
| | - Andreas Puschmann
- Lund University, Skåne University Hospital, Department of Clinical Sciences Lund, Neurology, Lund 22185, Sweden
| | - João Lemos
- Coimbra University Hospital Centre, Coimbra University, Coimbra 3000-075, Portugal
| | - Cristina Januário
- Coimbra University Hospital Centre, Coimbra University, Coimbra 3000-075, Portugal
| | - Mark S LeDoux
- University of Memphis and Veracity Neuroscience LLC, Memphis, TN 38152, USA
| | - Joseph H Friedman
- Department of Neurology, Warren Alpert Medical School of Brown University, Providence, RI 02906, USA
| | - James Polke
- Ataxia Centre, Department of Clinical and Movement Neurosciences, UCL Queen Square Institute of Neurology, London WC1N 3BG, UK.,Ataxia Centre, National Hospital for Neurology and Neurosurgery, University College London Hospitals NHS Trust, London WC1N 3BG, UK
| | - Robin Labrum
- Ataxia Centre, Department of Clinical and Movement Neurosciences, UCL Queen Square Institute of Neurology, London WC1N 3BG, UK.,Ataxia Centre, National Hospital for Neurology and Neurosurgery, University College London Hospitals NHS Trust, London WC1N 3BG, UK
| | - Vikram Shakkottai
- Department of Neurology, University of Michigan, Ann Arbor, MI 48109, USA
| | | | - Henry L Paulson
- Department of Neurology, University of Michigan, Ann Arbor, MI 48109, USA
| | - Takuya Konno
- Department of Neurology, Brain Research Institute, Niigata University, Niigata 951-8585, Japan
| | - Osamu Onodera
- Department of Neurology, Brain Research Institute, Niigata University, Niigata 951-8585, Japan
| | - Takeshi Ikeuchi
- Department of Molecular Genetics, Brain Research Institute, Niigata University, Niigata 951-8585, Japan
| | - Mari Tada
- Department of Pathology, Brain Research Institute, Niigata University, Niigata 951-8585, Japan
| | - Akiyoshi Kakita
- Department of Pathology, Brain Research Institute, Niigata University, Niigata 951-8585, Japan
| | - John D Fryer
- Neuroscience Graduate Program, Mayo Clinic Graduate School of Biomedical Sciences, Jacksonville, FL 32224, USA.,Department of Neuroscience, Mayo Clinic, Scottsdale, AZ 85259, USA
| | - Christin Karremo
- Lund University, Skåne University Hospital, Department of Clinical Sciences Lund, Neurology, Lund 22185, Sweden
| | - Inês Gomes
- Coimbra University Hospital Centre, Coimbra University, Coimbra 3000-075, Portugal
| | - John N Caviness
- Department of Neurology, Mayo Clinic, Scottsdale, AZ 85259, USA
| | - Mark R Pittelkow
- Department of Dermatology, Mayo Clinic, Scottsdale, AZ 85259, USA
| | - Jan Aasly
- Norwegian University of Science and Technology, 7006 Trondheim, Norway
| | - Ronald F Pfeiffer
- Department of Neurology, Oregon Health & Science University, Portland, OR 97239, USA
| | - Venka Veerappan
- Department of Neurology, Oregon Health & Science University, Portland, OR 97239, USA
| | | | | | | | - Ryan J Uitti
- Department of Neurology, Mayo Clinic, Jacksonville, FL 32224, USA
| | - Klaas J Wierenga
- Department of Neurology, Mayo Clinic, Jacksonville, FL 32224, USA
| | | | - Philip W Tipton
- Department of Neurology, Mayo Clinic, Jacksonville, FL 32224, USA
| | | | - Marka van Blitterswijk
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL 32224, USA.,Neuroscience Graduate Program, Mayo Clinic Graduate School of Biomedical Sciences, Jacksonville, FL 32224, USA
| | - Guojun Bu
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL 32224, USA.,Neuroscience Graduate Program, Mayo Clinic Graduate School of Biomedical Sciences, Jacksonville, FL 32224, USA
| | | | - Paola Giunti
- Ataxia Centre, Department of Clinical and Movement Neurosciences, UCL Queen Square Institute of Neurology, London WC1N 3BG, UK. .,Ataxia Centre, National Hospital for Neurology and Neurosurgery, University College London Hospitals NHS Trust, London WC1N 3BG, UK
| | - Leonard Petrucelli
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL 32224, USA. .,Neuroscience Graduate Program, Mayo Clinic Graduate School of Biomedical Sciences, Jacksonville, FL 32224, USA
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5
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Ba F, Pfeiffer RF. Connecting the visual deficit to motor improvement in Parkinson's via art therapy. Parkinsonism Relat Disord 2021; 84:146-147. [PMID: 33551314 DOI: 10.1016/j.parkreldis.2021.01.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/24/2021] [Accepted: 01/26/2021] [Indexed: 10/22/2022]
Affiliation(s)
- Fang Ba
- Division of Neurology, Department of Medicine, University of Alberta, 7-112 Clinical Sciences Building, 11350 - 83 Avenue Edmonton, Alberta, Canada, T6G 2G3.
| | - Ronald F Pfeiffer
- OHSU Parkinson Center, Department of Neurology, Oregon Health and Science University Oregon Health and Science University, USA.
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6
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Abstract
INTRODUCTION Antos et al. [7] have reported a case of suspected uniparental disomy leading to an initial erroneous diagnosis of Wilson's Disease on the basis of genetic testing. They discuss the usefulness of the 64Cu radioactive copper incorporation test as an often-overlooked diagnostic aid. CLINICAL REFLECTIONS Wilson's Disease is difficult to diagnose because of its rarity, diverse clinical presentations, and the absence of a single fail-safe diagnostic test. The identification of mutations in the ATP7B gene has been an invaluable aid in the diagnosis, but genetic testing alone is not infallible, and should not be used as the sole diagnostic test in arriving at a diagnosis of Wilson's Disease. CLINICAL IMPLICATIONS The diagnosis of Wilson's Disease must be based on a combination of findings that includes clinical history, clinical examination, and diagnostic testing. Genetic testing alone is insufficient.
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Affiliation(s)
- Ronald F Pfeiffer
- Oregon Health and Science University (OHSU), Portland, Oregon, United States.
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7
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Abstract
Recognition of the importance of nonmotor dysfunction as a component of Parkinson's disease has exploded over the past three decades. Autonomic dysfunction is a frequent and particularly important nonmotor feature because of the broad clinical spectrum it covers. Cardiovascular, gastrointestinal, urinary, sexual, and thermoregulatory abnormalities all can appear in the setting of Parkinson's disease. Cardiovascular dysfunction is characterized most prominently by orthostatic hypotension. Gastrointestinal dysfunction can involve virtually all levels of the gastrointestinal tract. Urinary dysfunction can entail either too frequent voiding or difficulty voiding. Sexual dysfunction is frequent and frustrating for both patient and partner. Alterations in sweating and body temperature are not widely recognized but often are present. Autonomic dysfunction can significantly and deleteriously impact quality of life for individuals with Parkinson's disease. Because effective treatment for many aspects of autonomic dysfunction is available, it is vitally important that assessment of autonomic dysfunction be a regular component of the neurologic history and exam and that appropriate treatment be initiated and maintained.
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Affiliation(s)
- Ronald F Pfeiffer
- Department of Neurology, Oregon Health & Science University, 3181 SW Sam Jackson Park Road, Portland, OR, 97239-3098, USA.
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8
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Pfeiffer RF, Isaacson SH, Pahwa R. Clinical implications of gastric complications on levodopa treatment in Parkinson's disease. Parkinsonism Relat Disord 2020; 76:63-71. [PMID: 32461054 DOI: 10.1016/j.parkreldis.2020.05.001] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [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: 01/07/2020] [Revised: 04/09/2020] [Accepted: 05/01/2020] [Indexed: 12/16/2022]
Abstract
Disorders of the gastrointestinal (GI) tract are common and distressing nonmotor symptoms of Parkinson's disease (PD) that can adversely affect levodopa absorption and lead to OFF periods, also known as motor fluctuations. Gastroparesis, which is primarily defined as delayed gastric emptying (DGE), and Helicobacter pylori infection, which is present with increased frequency in PD, are among the most common and important GI disorders reported in PD that may impair oral levodopa absorption and increase OFF time. Symptoms of gastroparesis include nausea, vomiting, postprandial bloating, fullness, early satiety, abdominal pain, and weight loss. DGE has been reported in a substantial fraction of individuals with PD. Symptoms of H. pylori infection include gastritis and peptic ulcers. Studies have found that DGE and H. pylori infection are correlated with delayed peak levodopa plasma levels and increased incidence of motor fluctuations. Therapeutic strategies devised to minimize the potential that gastric complications will impair oral levodopa absorption and efficacy in PD patients include treatments that circumvent the GI tract, such as apomorphine injection, levodopa intestinal gel delivery, levodopa inhalation powder, and deep brain stimulation. Other strategies aim at improving gastric emptying in PD patients, primarily including prokinetic agents.
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Affiliation(s)
- Ronald F Pfeiffer
- Department of Neurology, Oregon Health and Science University, Portland, OR, USA.
| | - Stuart H Isaacson
- Parkinson's Disease and Movement Disorders Center of Boca Raton, Boca Raton, FL, USA
| | - Rajesh Pahwa
- Department of Neurology, University of Kansas Medical Center, Kansas City, KS, USA
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9
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Abstract
PURPOSE OF REVIEW During the past 25 years, there has been an explosion of information regarding the occurrence of gastrointestinal dysfunction in Parkinson's disease. In this review, the clinical features of gastrointestinal dysfunction in Parkinson's disease will be described and information regarding the potential role of the enteric nervous system and the gut microbiome in the genesis of Parkinson's disease will be addressed. RECENT FINDINGS Recognition is growing regarding the role that gastroparesis and small intestinal dysfunction may play in Parkinson's disease, especially with regard to erratic responses to anti-Parkinson medication. The presence of enteric nervous system involvement in Parkinson's disease is now well established, but whether the enteric nervous system is the starting point for Parkinson's disease pathology remains a source of debate. The potential role of the gut microbiome also is beginning to emerge. Gastrointestinal dysfunction is a prominent nonmotor feature of Parkinson's disease and dysfunction can be found along the entire length of the gastrointestinal tract. The enteric nervous system is clearly involved in Parkinson's disease. Whether it is the initial source of pathology is still a source of controversy. There also is growing recognition of the role that the gut microbiome may play in Parkinson's disease, but much more research is needed to fully assess this aspect of the disorder.
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Affiliation(s)
- Ronald F Pfeiffer
- Department of Neurology, Oregon Health and Science University, Portland, OR, USA.
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10
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Michael Besser G, Pfeiffer RF, Thorner MO. ANNIVERSARY REVIEW: 50 years since the discovery of bromocriptine. Eur J Endocrinol 2018; 179:R69-R75. [PMID: 29752299 DOI: 10.1530/eje-18-0378] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/01/2018] [Accepted: 05/11/2018] [Indexed: 11/08/2022]
Abstract
Ergotism is the long-term ergot poisoning by ingestion of rye or other grains infected with the fungus Claviceps purpurea and more recently by excessive intake of ergot drugs. It has either neuropsychiatric or vascular manifestations. In the Middle Ages, the gangrenous poisoning was known as St. Anthony's fire, after the order of the Monks of St. Anthony who were particularly skilled at treating the condition. In 1917, Prof. Arthur Stoll returned home to Switzerland from Germany, to lead the development of a new pharmaceutical department at Sandoz Chemical Company. Stoll, using the special methods of extraction learned from his work with his mentor Willstetter, started his industrial research work with ergot. He succeeded in isolating, from the ergot of rye, ergotamine as an active principle of an old popular remedy for excessive post-partum bleeding. The success of this discovery occurred in 1918 and was translated into a pharmaceutical product in 1921 under the trade name Gynergen. In subsequent work, Stoll and his team were leaders in identifying the structure of the many other alkaloids and amines produced by Claviceps purpurea This was the cultural background and scientific foundation on which bromocriptine was discovered.
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Affiliation(s)
| | - Ronald F Pfeiffer
- Neurology, Oregon Health & Science University, Portland, Oregon, USA
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11
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Abstract
PURPOSE OF REVIEW Just as gastrointestinal dysfunction may develop in the setting of neurologic disease, neurologic dysfunction may become evident in the setting of gastrointestinal disease. This article describes the range of neurologic features that have been described in three primary gastrointestinal diseases: celiac disease and gluten-related disorders, inflammatory bowel disease, and Whipple disease. Particular emphasis is placed on the controversial and evolving clinical picture of neurologic dysfunction in disorders of gluten sensitivity. RECENT FINDINGS Gluten-related disorders, including both the traditional autoimmune-based celiac disease and the more recently recognized nonautoimmune, nonallergic gluten sensitivity, have been the source of much attention in both medical and lay publications. The possible association between Crohn disease and neurologic disorders also is receiving attention. The recognition that, although Whipple disease is an exceedingly rare disorder, a surprising percentage of the population may be asymptomatic stool carriers of the causative organism makes it important to always be cognizant of the disorder. SUMMARY The range of neurologic dysfunction in gastrointestinal diseases is broad and spans the spectrum from peripheral to central processes. Peripheral neuropathy, myopathy, myelopathy, cerebrovascular events, epilepsy, encephalopathy, and cerebellar dysfunction have all been described. Neurologists should be aware of the possibility that an underlying gastrointestinal disease process may be present in and responsible for the neurologic dysfunction that has prompted referral of an individual for evaluation.
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Abstract
PURPOSE OF REVIEW This article reviews the clinical features of Wilson disease, focusing on the neurologic and psychiatric abnormalities, and addresses the diagnostic workup and treatment approaches to managing the disease. RECENT FINDINGS The list of known mutations causing Wilson disease continues to grow, but advances in genetic testing may soon make it feasible to routinely perform genetic testing on individuals suspected of having Wilson disease. SUMMARY Wilson disease is a rare genetic disorder with protean manifestations that should be considered in the differential diagnosis of any individual presenting with unexplained neurologic, psychiatric, or hepatic dysfunction. Appropriate diagnostic testing should be expeditiously performed and treatment promptly initiated and maintained since failure to diagnose and treat Wilson disease will result in progressive and ultimately irreversible damage to the neurologic and other systems.
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13
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Wszolek ZK, Pfeiffer RF. So long, and thanks for all the fish. Parkinsonism Relat Disord 2018; 46:1. [DOI: 10.1016/j.parkreldis.2017.12.027] [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: 10/18/2022]
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14
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Abstract
Autonomic dysfunction is a frequent and important nonmotor feature of Parkinson's disease (PD). Autonomic dysfunction in PD spans a broad clinical spectrum. Cardiovascular dysfunction is characterized most prominently by orthostatic hypotension. Gastrointestinal dysfunction can involve virtually all levels of the gastrointestinal tract. Urinary dysfunction can entail either too frequent voiding or difficulty voiding. Sexual dysfunction is frequent and frustrating for both the patient and the partner. Alterations in sweating and body temperature are not widely recognized, but often are present. The presence of effective treatment for at least some aspects of autonomic dysfunction makes it vitally important that the assessment of autonomic dysfunction be a regular component of the neurologic history and examination for individuals with PD.
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Affiliation(s)
- Ronald F Pfeiffer
- Department of Neurology, Oregon Health and Science University, Portland, Oregon
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15
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Fasano A, Visanji NP, Liu LWC, Lang AE, Pfeiffer RF. Gastrointestinal dysfunction in Parkinson's disease. Lancet Neurol 2015; 14:625-39. [DOI: 10.1016/s1474-4422(15)00007-1] [Citation(s) in RCA: 371] [Impact Index Per Article: 41.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2014] [Revised: 03/09/2015] [Accepted: 03/16/2015] [Indexed: 12/11/2022]
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16
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Affiliation(s)
- Ronald F Pfeiffer
- Department of Neurology, University of Tennessee Health Science Center Memphis, Tennessee
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17
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Affiliation(s)
- Ronald F Pfeiffer
- Department of Neurology, University of Tennessee Health Science Center, 855 Monroe Avenue, Memphis, TN 38163, USA.
| | - Mark S LeDoux
- Department of Neurology, University of Tennessee Health Science Center, 855 Monroe Avenue, Memphis, TN 38163, USA
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18
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Pfeiffer RF. The Phenotypic Spectrum of Parkinson Disease. Mov Disord 2015. [DOI: 10.1016/b978-0-12-405195-9.00014-7] [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: 10/24/2022] Open
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19
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Theuns J, Verstraeten A, Sleegers K, Wauters E, Gijselinck I, Smolders S, Crosiers D, Corsmit E, Elinck E, Sharma M, Krüger R, Lesage S, Brice A, Chung SJ, Kim MJ, Kim YJ, Ross OA, Wszolek ZK, Rogaeva E, Xi Z, Lang AE, Klein C, Weissbach A, Mellick GD, Silburn PA, Hadjigeorgiou GM, Dardiotis E, Hattori N, Ogaki K, Tan EK, Zhao Y, Aasly J, Valente EM, Petrucci S, Annesi G, Quattrone A, Ferrarese C, Brighina L, Deutschländer A, Puschmann A, Nilsson C, Garraux G, LeDoux MS, Pfeiffer RF, Boczarska-Jedynak M, Opala G, Maraganore DM, Engelborghs S, De Deyn PP, Cras P, Cruts M, Van Broeckhoven C. Global investigation and meta-analysis of the C9orf72 (G4C2)n repeat in Parkinson disease. Neurology 2014; 83:1906-13. [PMID: 25326098 PMCID: PMC4248456 DOI: 10.1212/wnl.0000000000001012] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Objectives: The objective of this study is to clarify the role of (G4C2)n expansions in the etiology of Parkinson disease (PD) in the worldwide multicenter Genetic Epidemiology of Parkinson's Disease (GEO-PD) cohort. Methods: C9orf72 (G4C2)n repeats were assessed in a GEO-PD cohort of 7,494 patients diagnosed with PD and 5,886 neurologically healthy control individuals ascertained in Europe, Asia, North America, and Australia. Results: A pathogenic (G4C2)n>60 expansion was detected in only 4 patients with PD (4/7,232; 0.055%), all with a positive family history of neurodegenerative dementia, amyotrophic lateral sclerosis, or atypical parkinsonism, while no carriers were detected with typical sporadic or familial PD. Meta-analysis revealed a small increase in risk of PD with an increasing number of (G4C2)n repeats; however, we could not detect a robust association between the C9orf72 (G4C2)n repeat and PD, and the population attributable risk was low. Conclusions: Together, these findings indicate that expansions in C9orf72 do not have a major role in the pathogenesis of PD. Testing for C9orf72 repeat expansions should only be considered in patients with PD who have overt symptoms of frontotemporal lobar degeneration/amyotrophic lateral sclerosis or apparent family history of neurodegenerative dementia or motor neuron disease.
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Affiliation(s)
- Jessie Theuns
- Authors' affiliations are listed at the end of the article
| | | | | | - Eline Wauters
- Authors' affiliations are listed at the end of the article
| | | | | | - David Crosiers
- Authors' affiliations are listed at the end of the article
| | - Ellen Corsmit
- Authors' affiliations are listed at the end of the article
| | - Ellen Elinck
- Authors' affiliations are listed at the end of the article
| | - Manu Sharma
- Authors' affiliations are listed at the end of the article
| | - Rejko Krüger
- Authors' affiliations are listed at the end of the article
| | - Suzanne Lesage
- Authors' affiliations are listed at the end of the article
| | - Alexis Brice
- Authors' affiliations are listed at the end of the article
| | - Sun Ju Chung
- Authors' affiliations are listed at the end of the article
| | - Mi-Jung Kim
- Authors' affiliations are listed at the end of the article
| | - Young Jin Kim
- Authors' affiliations are listed at the end of the article
| | - Owen A Ross
- Authors' affiliations are listed at the end of the article
| | | | | | - Zhengrui Xi
- Authors' affiliations are listed at the end of the article
| | - Anthony E Lang
- Authors' affiliations are listed at the end of the article
| | | | - Anne Weissbach
- Authors' affiliations are listed at the end of the article
| | | | | | | | | | | | - Kotaro Ogaki
- Authors' affiliations are listed at the end of the article
| | - Eng-King Tan
- Authors' affiliations are listed at the end of the article
| | - Yi Zhao
- Authors' affiliations are listed at the end of the article
| | - Jan Aasly
- Authors' affiliations are listed at the end of the article
| | | | | | - Grazia Annesi
- Authors' affiliations are listed at the end of the article
| | - Aldo Quattrone
- Authors' affiliations are listed at the end of the article
| | | | - Laura Brighina
- Authors' affiliations are listed at the end of the article
| | | | | | | | - Gaëtan Garraux
- Authors' affiliations are listed at the end of the article
| | - Mark S LeDoux
- Authors' affiliations are listed at the end of the article
| | | | | | - Grzegorz Opala
- Authors' affiliations are listed at the end of the article
| | | | | | | | - Patrick Cras
- Authors' affiliations are listed at the end of the article
| | - Marc Cruts
- Authors' affiliations are listed at the end of the article
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Luciano AY, Jinnah HA, Pfeiffer RF, Truong DD, Nance MA, LeDoux MS. Treatment of myoclonus-dystonia syndrome with tetrabenazine. Parkinsonism Relat Disord 2014; 20:1423-6. [PMID: 25406829 DOI: 10.1016/j.parkreldis.2014.09.029] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [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: 09/02/2014] [Revised: 09/26/2014] [Accepted: 09/28/2014] [Indexed: 11/16/2022]
Abstract
BACKGROUND Many cases of myoclonus-dystonia (M-D) are due to mutations in SGCE (DYT11). For the majority of patients, myoclonus is relatively more severe than dystonia and can lead to significant functional disability. Deep brain stimulation has been chosen as a treatment option in some patients given that M-D often responds poorly to oral pharmacotherapy. METHODS Two siblings with M-D due to the same SGCE deletion mutation were evaluated with the Global Dystonia Rating Scale (GDRS), Fahn-Marsden Rating Scale (FM) and Unified Myoclonus Rating Scale (UMRS) on and off tetrabenazine. RESULTS Both subjects showed marked improvement in myoclonus and mild-to-moderate improvement in dystonia with tetrabenazine. In addition, the response to tetrabenazine has been sustained for years. CONCLUSIONS A therapeutic trial of tetrabenazine should be considered in patients with M-D, especially before consideration of deep brain stimulation. An adequately powered multi-center, double-blind study of tetrabenazine will be required to determine the relative contributions of tetrabenazine therapy to myoclonus, dystonia, quality of life, and activities of daily living in patients with M-D.
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Affiliation(s)
- Angelo Y Luciano
- Department of Neurology, University of Tennessee Health Science Center, Memphis, TN, USA
| | - H A Jinnah
- Departments of Neurology, Human Genetics, and Pediatrics, School of Medicine, Emory University Atlanta, GA, USA
| | - Ronald F Pfeiffer
- Department of Neurology, University of Tennessee Health Science Center, Memphis, TN, USA
| | - Daniel D Truong
- Parkinson's & Movement Disorder Institute, Fountain Valley, CA, USA
| | | | - Mark S LeDoux
- Department of Neurology, University of Tennessee Health Science Center, Memphis, TN, USA.
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21
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Beal MF, Oakes D, Shoulson I, Henchcliffe C, Galpern WR, Haas R, Juncos JL, Nutt JG, Voss TS, Ravina B, Shults CM, Helles K, Snively V, Lew MF, Griebner B, Watts A, Gao S, Pourcher E, Bond L, Kompoliti K, Agarwal P, Sia C, Jog M, Cole L, Sultana M, Kurlan R, Richard I, Deeley C, Waters CH, Figueroa A, Arkun A, Brodsky M, Ondo WG, Hunter CB, Jimenez-Shahed J, Palao A, Miyasaki JM, So J, Tetrud J, Reys L, Smith K, Singer C, Blenke A, Russell DS, Cotto C, Friedman JH, Lannon M, Zhang L, Drasby E, Kumar R, Subramanian T, Ford DS, Grimes DA, Cote D, Conway J, Siderowf AD, Evatt ML, Sommerfeld B, Lieberman AN, Okun MS, Rodriguez RL, Merritt S, Swartz CL, Martin WRW, King P, Stover N, Guthrie S, Watts RL, Ahmed A, Fernandez HH, Winters A, Mari Z, Dawson TM, Dunlop B, Feigin AS, Shannon B, Nirenberg MJ, Ogg M, Ellias SA, Thomas CA, Frei K, Bodis-Wollner I, Glazman S, Mayer T, Hauser RA, Pahwa R, Langhammer A, Ranawaya R, Derwent L, Sethi KD, Farrow B, Prakash R, Litvan I, Robinson A, Sahay A, Gartner M, Hinson VK, Markind S, Pelikan M, Perlmutter JS, Hartlein J, Molho E, Evans S, Adler CH, Duffy A, Lind M, Elmer L, Davis K, Spears J, Wilson S, Leehey MA, Hermanowicz N, Niswonger S, Shill HA, Obradov S, Rajput A, Cowper M, Lessig S, Song D, Fontaine D, Zadikoff C, Williams K, Blindauer KA, Bergholte J, Propsom CS, Stacy MA, Field J, Mihaila D, Chilton M, Uc EY, Sieren J, Simon DK, Kraics L, Silver A, Boyd JT, Hamill RW, Ingvoldstad C, Young J, Thomas K, Kostyk SK, Wojcieszek J, Pfeiffer RF, Panisset M, Beland M, Reich SG, Cines M, Zappala N, Rivest J, Zweig R, Lumina LP, Hilliard CL, Grill S, Kellermann M, Tuite P, Rolandelli S, Kang UJ, Young J, Rao J, Cook MM, Severt L, Boyar K. A randomized clinical trial of high-dosage coenzyme Q10 in early Parkinson disease: no evidence of benefit. JAMA Neurol 2014; 71:543-52. [PMID: 24664227 DOI: 10.1001/jamaneurol.2014.131] [Citation(s) in RCA: 233] [Impact Index Per Article: 23.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
IMPORTANCE Coenzyme Q10 (CoQ10), an antioxidant that supports mitochondrial function, has been shown in preclinical Parkinson disease (PD) models to reduce the loss of dopamine neurons, and was safe and well tolerated in early-phase human studies. A previous phase II study suggested possible clinical benefit. OBJECTIVE To examine whether CoQ10 could slow disease progression in early PD. DESIGN, SETTING, AND PARTICIPANTS A phase III randomized, placebo-controlled, double-blind clinical trial at 67 North American sites consisting of participants 30 years of age or older who received a diagnosis of PD within 5 years and who had the following inclusion criteria: the presence of a rest tremor, bradykinesia, and rigidity; a modified Hoehn and Yahr stage of 2.5 or less; and no anticipated need for dopaminergic therapy within 3 months. Exclusion criteria included the use of any PD medication within 60 days, the use of any symptomatic PD medication for more than 90 days, atypical or drug-induced parkinsonism, a Unified Parkinson's Disease Rating Scale (UPDRS) rest tremor score of 3 or greater for any limb, a Mini-Mental State Examination score of 25 or less, a history of stroke, the use of certain supplements, and substantial recent exposure to CoQ10. Of 696 participants screened, 78 were found to be ineligible, and 18 declined participation. INTERVENTIONS The remaining 600 participants were randomly assigned to receive placebo, 1200 mg/d of CoQ10, or 2400 mg/d of CoQ10; all participants received 1200 IU/d of vitamin E. MAIN OUTCOMES AND MEASURES Participants were observed for 16 months or until a disability requiring dopaminergic treatment. The prospectively defined primary outcome measure was the change in total UPDRS score (Parts I-III) from baseline to final visit. The study was powered to detect a 3-point difference between an active treatment and placebo. RESULTS The baseline characteristics of the participants were well balanced, the mean age was 62.5 years, 66% of participants were male, and the mean baseline total UPDRS score was 22.7. A total of 267 participants required treatment (94 received placebo, 87 received 1200 mg/d of CoQ10, and 86 received 2400 mg/d of CoQ10), and 65 participants (29 who received placebo, 19 who received 1200 mg/d of CoQ10, and 17 who received 2400 mg/d of CoQ10) withdrew prematurely. Treatments were well tolerated with no safety concerns. The study was terminated after a prespecified futility criterion was reached. At study termination, both active treatment groups showed slight adverse trends relative to placebo. Adjusted mean changes (worsening) in total UPDRS scores from baseline to final visit were 6.9 points (placebo), 7.5 points (1200 mg/d of CoQ10; P = .49 relative to placebo), and 8.0 points (2400 mg/d of CoQ10; P = .21 relative to placebo). CONCLUSIONS AND RELEVANCE Coenzyme Q10 was safe and well tolerated in this population, but showed no evidence of clinical benefit. TRIAL REGISTRATION clinicaltrials.gov Identifier: NCT00740714.
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Affiliation(s)
| | - M Flint Beal
- Department of Neurology, Weill Cornell Medical College, New York Hospital, New York
| | - David Oakes
- Department of Biostatistics, University of Rochester Medical Center, Rochester, New York
| | - Ira Shoulson
- Department of Neurology, Georgetown University, Washington, DC
| | - Claire Henchcliffe
- Department of Neurology, Weill Cornell Medical College, New York Hospital, New York
| | | | - Richard Haas
- Department of Neurosciences, University of California, San Diego, La Jolla
| | - Jorge L Juncos
- Department of Neurology, Emory University School of Medicine, Wesley Woods Center, Atlanta, Georgia
| | - John G Nutt
- Department of Neurology, Oregon Health and Science University, Portland
| | | | | | - Clifford M Shults
- Department of Neurosciences, University of California, San Diego, La Jolla10VA Medical Center, San Diego, California
| | - Karen Helles
- Department of Biostatistics, University of Rochester Medical Center, Rochester, New York
| | - Victoria Snively
- Department of Biostatistics, University of Rochester Medical Center, Rochester, New York
| | - Mark F Lew
- Department of Neurology, Keck School of Medicine, University of Southern California, Los Angeles
| | - Brian Griebner
- Department of Biostatistics, University of Rochester Medical Center, Rochester, New York
| | - Arthur Watts
- Department of Biostatistics, University of Rochester Medical Center, Rochester, New York12Department of Neurology, University of Rochester, Rochester, New York
| | - Shan Gao
- Department of Biostatistics, University of Rochester Medical Center, Rochester, New York
| | - Emmanuelle Pourcher
- Québec Memory and Motor Skills Disorders Research Center, Clinique Sainte-Anne, Québec, Canada
| | - Louisette Bond
- Québec Memory and Motor Skills Disorders Research Center, Clinique Sainte-Anne, Québec, Canada
| | | | - Pinky Agarwal
- Booth Gardner Parkinson's Care Center, EvergreenHealth, Kirkland, Washington
| | - Cherissa Sia
- Booth Gardner Parkinson's Care Center, EvergreenHealth, Kirkland, Washington
| | - Mandar Jog
- London Health Sciences Centre, London, Ontario, Canada
| | - Linda Cole
- London Health Sciences Centre, London, Ontario, Canada
| | | | - Roger Kurlan
- Overlook Medical Center, Atlantic Neuroscience Institute, Summit, New Jersey
| | - Irene Richard
- Department of Neurology, University of Rochester, Rochester, New York
| | - Cheryl Deeley
- Department of Neurology, University of Rochester, Rochester, New York
| | - Cheryl H Waters
- Columbia University Medical Center, Neurological Institute, New York, New York
| | - Angel Figueroa
- Columbia University Medical Center, Neurological Institute, New York, New York
| | - Ani Arkun
- Department of Neurology, Weill Cornell Medical College, New York Hospital, New York
| | - Matthew Brodsky
- Department of Neurology, Oregon Health and Science University, Portland
| | - William G Ondo
- Department of Neurology, University of Texas Health Science Center at Houston
| | | | | | - Alicia Palao
- Department of Neurology, Baylor College of Medicine, Houston, Texas
| | - Janis M Miyasaki
- Morton and Gloria Shulman Movement Disorders Centre, Toronto Western Hospital, University of Toronto, Toronto, Ontario, Canada
| | - Julie So
- Morton and Gloria Shulman Movement Disorders Centre, Toronto Western Hospital, University of Toronto, Toronto, Ontario, Canada
| | - James Tetrud
- The Parkinson's Institute and Clinical Center, Sunnyvale, California
| | - Liza Reys
- The Parkinson's Institute and Clinical Center, Sunnyvale, California
| | - Katharine Smith
- The Parkinson's Institute and Clinical Center, Sunnyvale, California
| | - Carlos Singer
- Department of Neurology, University of Miami School of Medicine, Miami, Florida
| | - Anita Blenke
- Department of Neurology, University of Miami School of Medicine, Miami, Florida
| | - David S Russell
- Institute for Neurodegenerative Disorders, New Haven, Connecticut
| | - Candace Cotto
- Institute for Neurodegenerative Disorders, New Haven, Connecticut
| | - Joseph H Friedman
- Department of Neurology, Butler Hospital, Providence, Rhode Island26Alpert Medical School, Brown University, Providence, Rhode Island
| | - Margaret Lannon
- Department of Neurology, Butler Hospital, Providence, Rhode Island27Port City Neurology, Inc, Scarborough, Maine
| | - Lin Zhang
- Department of Neurology, University of California, Davis, School of Medicine and Sacramento VA Medical Center, Sacramento
| | | | | | - Thyagarajan Subramanian
- Milton S. Hershey Medical Center, Department of Neurology, Pennsylvania State Hershey College of Medicine, Hershey
| | - Donna Stuppy Ford
- Milton S. Hershey Medical Center, Department of Neurology, Pennsylvania State Hershey College of Medicine, Hershey
| | | | - Diane Cote
- Ottawa Hospital Civic Site, Ottawa, Ontario, Canada
| | | | | | - Marian Leslie Evatt
- Department of Neurology, Emory University School of Medicine, Wesley Woods Center, Atlanta, Georgia33Atlanta VA Medical Center, Atlanta, Georgia
| | - Barbara Sommerfeld
- Department of Neurology, Emory University School of Medicine, Wesley Woods Center, Atlanta, Georgia
| | - Abraham N Lieberman
- Muhammad Ali Parkinson Center, Barrow Neurological Institute, St Joseph's Hospital and Medical Center, Phoenix, Arizona
| | - Michael S Okun
- Department of Neurology, University of Florida Center for Movement Disorders and Neurorestoration, Gainesville
| | - Ramon L Rodriguez
- Department of Neurology, University of Florida Center for Movement Disorders and Neurorestoration, Gainesville
| | - Stacy Merritt
- Department of Neurology, University of Florida Center for Movement Disorders and Neurorestoration, Gainesville
| | - Camille Louise Swartz
- Department of Neurology, University of Florida Center for Movement Disorders and Neurorestoration, Gainesville
| | - W R Wayne Martin
- Glenrose Rehabilitation Hospital, University of Alberta, Edmonton, Alberta, Canada
| | - Pamela King
- Glenrose Rehabilitation Hospital, University of Alberta, Edmonton, Alberta, Canada
| | | | | | - Ray L Watts
- Department of Neurology, University of Alabama at Birmingham
| | - Anwar Ahmed
- Center for Neurological Restoration, Department of Neurology, Cleveland Clinic, Cleveland, Ohio
| | - Hubert H Fernandez
- Center for Neurological Restoration, Department of Neurology, Cleveland Clinic, Cleveland, Ohio
| | - Adrienna Winters
- Center for Neurological Restoration, Department of Neurology, Cleveland Clinic, Cleveland, Ohio
| | - Zoltan Mari
- Department of Neurology, Johns Hopkins University, Baltimore, Maryland
| | - Ted M Dawson
- Department of Neurology, Johns Hopkins University, Baltimore, Maryland
| | - Becky Dunlop
- Department of Neurology, Johns Hopkins University, Baltimore, Maryland
| | - Andrew S Feigin
- Feinstein Institute for Medical Research, Center for Neurosciences, Manhasset, New York
| | - Barbara Shannon
- Feinstein Institute for Medical Research, Center for Neurosciences, Manhasset, New York
| | | | - Mattson Ogg
- Department of Neurology, Weill Cornell Medical College, New York Hospital, New York
| | - Samuel A Ellias
- Department of Neurology, Boston University School of Medicine, Boston, Massachusetts
| | - Cathi-Ann Thomas
- Department of Neurology, Boston University School of Medicine, Boston, Massachusetts
| | - Karen Frei
- The Parkinson's and Movement Disorder Institute, Fountain Valley, California
| | - Ivan Bodis-Wollner
- State University of New York, Downstate Medical Center, Brooklyn, New York
| | - Sofya Glazman
- State University of New York, Downstate Medical Center, Brooklyn, New York
| | - Thomas Mayer
- State University of New York, Downstate Medical Center, Brooklyn, New York
| | | | - Rajesh Pahwa
- Department of Neurology, University of Kansas Medical Center, Kansas City
| | - April Langhammer
- Department of Neurology, University of Kansas Medical Center, Kansas City
| | - Ranjit Ranawaya
- Department of Clinical Neurosciences, University of Calgary, Calgary, Alberta, Canada
| | - Lorelei Derwent
- Department of Clinical Neurosciences, University of Calgary, Calgary, Alberta, Canada
| | - Kapil D Sethi
- Department of Neurology, Georgia Health Science University, Augusta
| | - Buff Farrow
- Department of Neurology, Georgia Health Science University, Augusta
| | - Rajan Prakash
- Department of Neurology, Georgia Health Science University, Augusta
| | - Irene Litvan
- Department of Neurosciences, University of California, San Diego, La Jolla
| | | | - Alok Sahay
- University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Maureen Gartner
- University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Vanessa K Hinson
- Department of Neurology, Medical University of South Carolina, Charleston
| | | | | | - Joel S Perlmutter
- Department of Neurology, Washington University in St Louis, Missouri
| | - Johanna Hartlein
- Department of Neurology, Washington University in St Louis, Missouri
| | - Eric Molho
- Movement Disorders Center, Albany Medical Center, Albany, New York
| | - Sharon Evans
- Movement Disorders Center, Albany Medical Center, Albany, New York
| | - Charles H Adler
- Parkinson's Disease and Movement Disorders Center, Department of Neurology, Mayo Clinic, Scottsdale, Arizona
| | - Amy Duffy
- Parkinson's Disease and Movement Disorders Center, Department of Neurology, Mayo Clinic, Scottsdale, Arizona
| | - Marlene Lind
- Parkinson's Disease and Movement Disorders Center, Department of Neurology, Mayo Clinic, Scottsdale, Arizona
| | - Lawrence Elmer
- Center for Neurological Health, University of Toledo, Toledo, Ohio
| | - Kathy Davis
- Department of Neurology, Medical University of Ohio at Toledo
| | - Julia Spears
- Department of Neurology, Medical University of Ohio at Toledo
| | | | - Maureen A Leehey
- Department of Neurology, University of Colorado Health Science Center, Denver
| | - Neal Hermanowicz
- Department of Neurology, University of California, Irvine Medical Center, Irvine
| | - Shari Niswonger
- Department of Neurology, University of California, Irvine Medical Center, Irvine
| | - Holly A Shill
- Banner Sun Health Research Institute, Sun City, Arizona
| | - Sanja Obradov
- Banner Sun Health Research Institute, Sun City, Arizona
| | - Alex Rajput
- Department of Neurology, University of Saskatchewan, Royal University Hospital, Saskatchewan, Canada
| | - Marilyn Cowper
- Department of Neurology, University of Saskatchewan, Royal University Hospital, Saskatchewan, Canada
| | - Stephanie Lessig
- Department of Neurology, University of California, San Diego, La Jolla
| | - David Song
- Department of Neurology, University of California, San Diego, La Jolla
| | - Deborah Fontaine
- Department of Neurology, University of California, San Diego, La Jolla
| | - Cindy Zadikoff
- Department of Neurology, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | - Karen Williams
- Department of Neurology, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | | | - Jo Bergholte
- Department of Neurology, Medical College of Wisconsin, Milwaukee
| | | | - Mark A Stacy
- Department of Neurology, Duke University, Durham, North Carolina
| | - Joanne Field
- Department of Neurology, Duke University, Durham, North Carolina
| | - Dragos Mihaila
- State University of New York Upstate Medical Center and Syracuse VA Medical Center, Syracuse
| | - Mark Chilton
- State University of New York Upstate Medical Center and Syracuse VA Medical Center, Syracuse
| | - Ergun Y Uc
- Department of Neurology, University of Iowa, Iowa City
| | - Jeri Sieren
- Department of Neurology, University of Iowa, Iowa City
| | - David K Simon
- Department of Neurology, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Massachusetts
| | - Lauren Kraics
- Department of Neurology, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Massachusetts
| | - Althea Silver
- Department of Neurology, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Massachusetts
| | - James T Boyd
- Department of Neurology, University of Vermont College of Medicine, Burlington
| | - Robert W Hamill
- Department of Neurology, University of Vermont College of Medicine, Burlington
| | | | - Jennifer Young
- Department of Neurology, University of Vermont College of Medicine, Burlington
| | - Karen Thomas
- Department of Neurology, Ohio State University, Columbus
| | | | - Joanne Wojcieszek
- Department of Neurology, Indiana University School of Medicine, Indianapolis
| | - Ronald F Pfeiffer
- Department of Neurology, University of Tennessee Health Science Center, Memphis
| | - Michel Panisset
- Department of Neurology, CHUM-Hôpital Notre-Dame, Montréal, Québec, Canada
| | - Monica Beland
- Department of Neurology, CHUM-Hôpital Notre-Dame, Montréal, Québec, Canada
| | - Stephen G Reich
- Department of Neurology, University of Maryland School of Science, Baltimore
| | - Michelle Cines
- Department of Neurology, University of Maryland School of Science, Baltimore
| | - Nancy Zappala
- Department of Neurology, University of Maryland School of Science, Baltimore
| | - Jean Rivest
- Department of Neurology, University of Sherbrooke, Québec, Canada
| | - Richard Zweig
- Department of Neurology, Louisiana State University Health Science Center, Shreveport
| | - L Pepper Lumina
- Department of Neurology, Louisiana State University Health Science Center, Shreveport
| | | | - Stephen Grill
- Department of Neurology, Johns Hopkins University, Baltimore, Maryland
| | | | - Paul Tuite
- Department of Neurology, University of Minnesota, Minneapolis
| | | | - Un Jung Kang
- Department of Neurology, University of Chicago, Chicago, Illinois
| | - Joan Young
- Department of Neurology, University of Chicago, Chicago, Illinois
| | - Jayaraman Rao
- Department of Neurology, Ochsner Clinic Foundation, New Orleans, Louisiana
| | - Maureen M Cook
- Department of Neurology, Ochsner Clinic Foundation, New Orleans, Louisiana
| | - Lawrence Severt
- Department of Neurology, Beth Israel Medical Center, New York, New York
| | - Karyn Boyar
- Department of Neurology, Beth Israel Medical Center, New York, New York
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22
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Vemula SR, Xiao J, Zhao Y, Bastian RW, Perlmutter JS, Racette BA, Paniello RC, Wszolek ZK, Uitti RJ, Van Gerpen JA, Hedera P, Truong DD, Blitzer A, Rudzińska M, Momčilović D, Jinnah HA, Frei K, Pfeiffer RF, LeDoux MS. A rare sequence variant in intron 1 of THAP1 is associated with primary dystonia. Mol Genet Genomic Med 2014; 2:261-72. [PMID: 24936516 PMCID: PMC4049367 DOI: 10.1002/mgg3.67] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2013] [Revised: 12/31/2013] [Accepted: 01/03/2014] [Indexed: 12/16/2022] Open
Abstract
Although coding variants in THAP1 have been causally associated with primary dystonia, the contribution of noncoding variants remains uncertain. Herein, we examine a previously identified Intron 1 variant (c.71+9C>A, rs200209986). Among 1672 subjects with mainly adult-onset primary dystonia, 12 harbored the variant in contrast to 1/1574 controls (P < 0.01). Dystonia classification included cervical dystonia (N = 3), laryngeal dystonia (adductor subtype, N = 3), jaw-opening oromandibular dystonia (N = 1), blepharospasm (N = 2), and unclassified (N = 3). Age of dystonia onset ranged from 25 to 69 years (mean = 54 years). In comparison to controls with no identified THAP1 sequence variants, the c.71+9C>A variant was associated with an elevated ratio of Isoform 1 (NM_018105) to Isoform 2 (NM_199003) in leukocytes. In silico and minigene analyses indicated that c.71+9C>A alters THAP1 splicing. Lymphoblastoid cells harboring the c.71+9C>A variant showed extensive apoptosis with relatively fewer cells in the G2 phase of the cell cycle. Differentially expressed genes from lymphoblastoid cells revealed that the c.71+9C>A variant exerts effects on DNA synthesis, cell growth and proliferation, cell survival, and cytotoxicity. In aggregate, these data indicate that THAP1 c.71+9C>A is a risk factor for adult-onset primary dystonia.
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Affiliation(s)
- Satya R Vemula
- Departments of Neurology and Anatomy & Neurobiology, University of Tennessee Health Science Center Memphis, Tennessee, 38163
| | - Jianfeng Xiao
- Departments of Neurology and Anatomy & Neurobiology, University of Tennessee Health Science Center Memphis, Tennessee, 38163
| | - Yu Zhao
- Departments of Neurology and Anatomy & Neurobiology, University of Tennessee Health Science Center Memphis, Tennessee, 38163
| | | | - Joel S Perlmutter
- Department of Neurology, Washington University School of Medicine St. Louis, Missouri
| | - Brad A Racette
- Department of Neurology, Washington University School of Medicine St. Louis, Missouri
| | - Randal C Paniello
- Department of Otolaryngology-Head and Neck Surgery, Washington University School of Medicine St. Louis, Missouri
| | | | - Ryan J Uitti
- Department of Neurology, Mayo Clinic Jacksonville, Florida, 32224
| | - Jay A Van Gerpen
- Department of Neurology, Mayo Clinic Jacksonville, Florida, 32224
| | - Peter Hedera
- Department of Neurology, Vanderbilt University Nashville, Tennessee
| | - Daniel D Truong
- Parkinson's & Movement Disorder Institute Fountain Valley, California, 92708
| | - Andrew Blitzer
- New York Center for Voice and Swallowing Disorders New York, New York
| | - Monika Rudzińska
- Department of Neurology, Jagiellonian University Medical College in Krakow Kraków, Poland
| | - Dragana Momčilović
- Clinic for Child Neurology and Psychiatry, Medical Faculty University of Belgrade Belgrade, Serbia
| | - Hyder A Jinnah
- Departments of Neurology, Human Genetics, and Pediatrics, School of Medicine, Emory University Atlanta, Georgia, 30322
| | - Karen Frei
- Department of Neurology, Loma Linda University Health System Loma Linda, California, 92354
| | - Ronald F Pfeiffer
- Departments of Neurology and Anatomy & Neurobiology, University of Tennessee Health Science Center Memphis, Tennessee, 38163
| | - Mark S LeDoux
- Departments of Neurology and Anatomy & Neurobiology, University of Tennessee Health Science Center Memphis, Tennessee, 38163
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23
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Alcalay RN, Caccappolo E, Mejia-Santana H, Tang MX, Rosado L, Orbe Reilly M, Ruiz D, Louis ED, Comella CL, Nance MA, Bressman SB, Scott WK, Tanner CM, Mickel SF, Waters CH, Fahn S, Cote LJ, Frucht SJ, Ford B, Rezak M, Novak KE, Friedman JH, Pfeiffer RF, Marsh L, Hiner B, Payami H, Molho E, Factor SA, Nutt JG, Serrano C, Arroyo M, Ottman R, Pauciulo MW, Nichols WC, Clark LN, Marder KS. Cognitive and motor function in long-duration PARKIN-associated Parkinson disease. JAMA Neurol 2014; 71:62-7. [PMID: 24190026 PMCID: PMC3947132 DOI: 10.1001/jamaneurol.2013.4498] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [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: 11/14/2022]
Abstract
IMPORTANCE Data on the long-term cognitive outcomes of patients with PARKIN-associated Parkinson disease (PD) are unknown but may be useful when counseling these patients. OBJECTIVE Among patients with early-onset PD of long duration, we assessed cognitive and motor performances, comparing homozygotes and compound heterozygotes who carry 2 PARKIN mutations with noncarriers. DESIGN, SETTING, AND PARTICIPANTS Cross-sectional study of 44 participants at 17 different movement disorder centers who were in the Consortium on Risk for Early-Onset PD study with a duration of PD greater than the median duration (>14 years): 4 homozygotes and 17 compound heterozygotes (hereafter referred to as carriers) and 23 noncarriers. MAIN OUTCOMES AND MEASURES Unified Parkinson Disease Rating Scale Part III (UPDRS-III) and Clinical Dementia Rating scores and neuropsychological performance. Linear regression models were applied to assess the association between PARKIN mutation status and cognitive domain scores and UPDRS-III scores. Models were adjusted for age, education, disease duration, language, and levodopa equivalent daily dose. RESULTS Carriers had an earlier age at onset of PD (P < .001) and were younger (P = .004) at time of examination than noncarriers. They performed better than noncarriers on the Mini-Mental State Examination (P = .010) and were more likely to receive lower scores on the Clinical Dementia Rating (P = .003). In multivariate analyses, carriers performed better than noncarriers on the UPDRS-III (P = .02) and on tests of attention (P = .03), memory (P = .03), and visuospatial (P = .02) cognitive domains. CONCLUSIONS AND RELEVANCE In cross-sectional analyses, carriers demonstrated better cognitive and motor performance than did noncarriers with long disease duration, suggesting slower disease progression. A longitudinal follow-up study is required to confirm these findings.
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Affiliation(s)
- Roy N Alcalay
- Department of Neurology, College of Physicians and Surgeons, Columbia University, New York, New York2Taub Institute for Research on Alzheimer's Disease and the Aging Brain, College of Physicians and Surgeons, Columbia University, New York, New York
| | - Elise Caccappolo
- Department of Neurology, College of Physicians and Surgeons, Columbia University, New York, New York
| | - Helen Mejia-Santana
- Department of Neurology, College of Physicians and Surgeons, Columbia University, New York, New York
| | - Ming Xin Tang
- Department of Neurology, College of Physicians and Surgeons, Columbia University, New York, New York2Taub Institute for Research on Alzheimer's Disease and the Aging Brain, College of Physicians and Surgeons, Columbia University, New York, New York
| | - Llency Rosado
- Department of Neurology, College of Physicians and Surgeons, Columbia University, New York, New York
| | - Martha Orbe Reilly
- Department of Neurology, College of Physicians and Surgeons, Columbia University, New York, New York
| | - Diana Ruiz
- Department of Neurology, College of Physicians and Surgeons, Columbia University, New York, New York
| | - Elan D Louis
- Department of Neurology, College of Physicians and Surgeons, Columbia University, New York, New York2Taub Institute for Research on Alzheimer's Disease and the Aging Brain, College of Physicians and Surgeons, Columbia University, New York, New York3Gertru
| | - Cynthia L Comella
- Department of Neurological Sciences, Rush University Medical Center, Chicago, Illinois
| | - Martha A Nance
- Struthers Parkinson's Center, Park Nicollet Clinic, Golden Valley, Minnesota
| | - Susan B Bressman
- The Alan and Barbara Mirken Department of Neurology, Beth Israel Medical Center, New York, New York8Department of Neurology, Albert Einstein College of Medicine, Bronx, New York
| | - William K Scott
- Dr John T. Macdonald Foundation, Department of Human Genetics, Miami Institute for Human Genomics, Miller School of Medicine, University of Miami, Miami, Florida
| | - Caroline M Tanner
- Parkinson's Institute, Sunnyvale, and Department of Health Research and Policy, Stanford University, Palo Alto, California
| | - Susan F Mickel
- Marshfield Clinic, Department of Neurology, Marshfield, Wisconsin
| | - Cheryl H Waters
- Department of Neurology, College of Physicians and Surgeons, Columbia University, New York, New York
| | - Stanley Fahn
- Department of Neurology, College of Physicians and Surgeons, Columbia University, New York, New York
| | - Lucien J Cote
- Department of Neurology, College of Physicians and Surgeons, Columbia University, New York, New York3Gertrude H. Sergievsky Center, College of Physicians and Surgeons, Columbia University, New York, New York
| | - Steven J Frucht
- Department of Neurology, College of Physicians and Surgeons, Columbia University, New York, New York
| | - Blair Ford
- Department of Neurology, College of Physicians and Surgeons, Columbia University, New York, New York
| | - Michael Rezak
- Central DuPage Hospital, Neurosciences Institute, Movement Disorders Center, Winfield, Illinois
| | - Kevin E Novak
- Department of Neurology, NorthShore University Health System, Evanston, Illinois14Department of Neurology, University of Chicago, Pritzker School of Medicine, Chicago, Illinois
| | - Joseph H Friedman
- Department of Neurology, Butler Hospital, Providence, Rhode Island16Department of Neurology, Alpert Medical School, Brown University, Providence, Rhode Island
| | - Ronald F Pfeiffer
- Department of Neurology, College of Medicine, University of Tennessee Health Science Center, Memphis
| | - Laura Marsh
- Morris K. Udall Parkinson's Disease Research Center of Excellence and Departments of Psychiatry and Behavioral Sciences and Neurology and Neurological Sciences, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Bradley Hiner
- Department of Neurology, Medical College of Wisconsin, Milwaukee
| | - Haydeh Payami
- New York State Department of Health Wadsworth Center, Albany, New York
| | - Eric Molho
- Parkinson's Disease and Movement Disorders Center of Albany Medical Center, Albany, New York
| | | | - John G Nutt
- Portland VA Medical Center, Parkinson Disease Research, Education and Clinical Center, and Oregon Health and Science University, Portland
| | - Carmen Serrano
- Department of Neurology, University of Puerto Rico, San Juan
| | - Maritza Arroyo
- Department of Neurology, University of Puerto Rico, San Juan
| | - Ruth Ottman
- Department of Neurology, College of Physicians and Surgeons, Columbia University, New York, New York3Gertrude H. Sergievsky Center, College of Physicians and Surgeons, Columbia University, New York, New York4Department of Epidemiology, Mailman School of P
| | - Michael W Pauciulo
- Division of Human Genetics, Cincinnati Children's Hospital Medical Center, and Department of Pediatrics; University of Cincinnati College of Medicine, Ohio
| | - William C Nichols
- Division of Human Genetics, Cincinnati Children's Hospital Medical Center, and Department of Pediatrics; University of Cincinnati College of Medicine, Ohio
| | - Lorraine N Clark
- Taub Institute for Research on Alzheimer's Disease and the Aging Brain, College of Physicians and Surgeons, Columbia University, New York, New York27Department of Pathology and Cell Biology, College of Physicians and Surgeons, Columbia University, New Yor
| | - Karen S Marder
- Department of Neurology, College of Physicians and Surgeons, Columbia University, New York, New York2Taub Institute for Research on Alzheimer's Disease and the Aging Brain, College of Physicians and Surgeons, Columbia University, New York, New York3Gertru
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Abstract
Growing recognition of the non-motor features of Parkinson's disease (PD) has led to increased awareness of autonomic dysfunction as part of the disease process, not only in advanced disease but also early in its course, sometimes even preceding the development of the classic motor features of PD. Virtually all aspects of autonomic function can become impaired in PD, including cardiovascular, gastrointestinal, urological, sexual and thermoregulatory function. Recognition of the various autonomic abnormalities of PD is important because effective treatment may be available and may measurably improve quality of life for individuals with PD.
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Affiliation(s)
- Ronald F Pfeiffer
- Department of Neurology, University of Tennessee Health Science Center, 855 Monroe Avenue, Memphis, TN 38163, USA.
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Wszolek ZK, Pfeiffer RF. Annual report 2011. Parkinsonism Relat Disord 2012. [DOI: 10.1016/j.parkreldis.2012.01.015] [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: 11/26/2022]
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Korff A, Pfeiffer B, Smeyne M, Kocak M, Pfeiffer RF, Smeyne RJ. Alterations in glutathione S-transferase pi expression following exposure to MPP+ -induced oxidative stress in the blood of Parkinson's disease patients. Parkinsonism Relat Disord 2011; 17:765-8. [PMID: 21840241 DOI: 10.1016/j.parkreldis.2011.06.026] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [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: 03/21/2011] [Revised: 06/17/2011] [Accepted: 06/23/2011] [Indexed: 11/26/2022]
Abstract
The major motor symptoms of Parkinson's disease do not occur until a majority of the dopaminergic neurons in the midbrain SNpc have already died. For this reason, it is critical to identify biomarkers that will allow for the identification of presymptomatic individuals. In this study, we examine the baseline expression of the anti-oxidant protein glutathione S-transferase pi (GSTpi) in the blood of PD patients and environmentally- and age-matched controls and compare it to GSTpi levels following exposure to 1-methyl-4-phenylpyridinium (MPP(+)), an agent that has been shown to induce oxidative stress. We find that after 4 h of exposure to MPP(+), significant increases in GSTpi levels can be observed in the leukocytes of PD patients. No changes were seen in other blood components. This suggests that GSTpi and potentially other members of this and other anti-oxidant families may be viable biomarkers for PD.
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Affiliation(s)
- Ane Korff
- Department of Developmental Neurobiology, St. Jude Children's Research Hospital, 262 Danny Thomas Place, Memphis, TN 38105, USA
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Abstract
In the almost 100 years since Wilson's description of the illness that now bears his name, tremendous advances have been made in our understanding of this disorder. The genetic basis for Wilson's disease - mutation within the ATP7B gene - has been identified. The pathophysiologic basis for the damage resulting from the inability to excrete copper via the biliary system with its consequent gradual accumulation, first in the liver and ultimately in the brain and other organs and tissues, is now known. This has led to the development of effective diagnostic and treatment modalities that, although they may not eliminate the disorder, do provide the means for efficient diagnosis and effective amelioration if carried out in a dedicated and persistent fashion. Nevertheless, Wilson's disease remains both a diagnostic and treatment challenge for physician and patient. Its protean clinical manifestations make diagnosis difficult. Appropriate diagnostic evaluations to confirm the diagnosis and institute treatment can be confusing. In this chapter, the clinical manifestations, diagnostic evaluation, and treatment approaches for Wilson's disease are discussed.
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Affiliation(s)
- Ronald F Pfeiffer
- Department of Neurology, University of Tennessee Health Science Center, Memphis, TN 38163, USA.
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Puschmann A, Pfeiffer RF, Stoessl AJ, Kuriakose R, Lash JL, Searcy JA, Strongosky AJ, Vilariño-Güell C, Farrer MJ, Ross OA, Dickson DW, Wszolek ZK. A family with Parkinsonism, essential tremor, restless legs syndrome, and depression. Neurology 2011; 76:1623-30. [PMID: 21555728 DOI: 10.1212/wnl.0b013e318219fb42] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
BACKGROUND Previous epidemiologic and genetic studies have suggested a link between Parkinson disease (PD), essential tremor (ET), and restless legs syndrome (RLS). METHODS We describe the clinical, PET, and pathologic characteristics of an extensive kindred from Arkansas with hereditary PD, ET, and RLS. The pedigree contains 138 individuals. Sixty-five family members were examined neurologically up to 3 times from 2004 to 2010. Clinical data were collected from medical records and questionnaires. Genetic studies were performed. Five family members underwent multitracer PET. Two individuals with PD were examined postmortem. RESULTS Eleven family members had PD with generally mild and slowly progressive symptoms. Age at onset was between 39 and 74 years (mean 59.1, SD 13.4). All individuals treated with l-dopa responded positively. Postural or action tremor was present in 6 individuals with PD, and in 19 additional family members. Fifteen persons reported symptoms of RLS. PET showed reduced presynaptic dopamine function typical of sporadic PD in a patient with PD and ET, but not in persons with ET or RLS. The inheritance pattern was autosomal dominant for PD and RLS. No known pathogenic mutation in PD-related genes was found. Fourteen of the family members with PD, ET, or RLS had depression. Neuropathologic examination revealed pallidonigral pigment spheroid degeneration with ubiquitin-positive axonal spheroids, TDP43-positive pathology in the basal ganglia, hippocampus, and brainstem, and only sparse Lewy bodies. CONCLUSION Familial forms of PD, ET, RLS, and depression occur in this family. The genetic cause remains to be elucidated.
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Affiliation(s)
- A Puschmann
- Department of Neurology, Mayo Clinic Jacksonville, 4500 San Pablo Road, Jacksonville, FL 32224, USA.
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Xiao J, Zhao Y, Bastian RW, Perlmutter JS, Racette BA, Tabbal SD, Karimi M, Paniello RC, Wszolek ZK, Uitti RJ, Van Gerpen JA, Simon DK, Tarsy D, Hedera P, Truong DD, Frei KP, Blitzer A, Rudzińska M, Pfeiffer RF, Le C, LeDoux MS. The c.-237_236GA>TT THAP1 sequence variant does not increase risk for primary dystonia. Mov Disord 2011; 26:549-52. [PMID: 21370264 DOI: 10.1002/mds.23551] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2010] [Revised: 10/24/2010] [Accepted: 11/01/2010] [Indexed: 11/07/2022] Open
Abstract
BACKGROUND Sequence variants in coding and noncoding regions of THAP1 have been associated with primary dystonia. METHODS In this study, 1,446 Caucasian subjects with mainly adult-onset primary dystonia and 1,520 controls were genotyped for a variant located in the 5'-untranslated region of THAP1 (c.-237_236GA>TT). RESULTS Minor allele frequencies were 62/2892 (2.14%) and 55/3040 (1.81%) in subjects with dystonia and controls, respectively (P=0.202). Subgroup analyses by gender and anatomical distribution also failed to attain statistical significance. In addition, there was no effect of the TT variant on expression levels of THAP1 transcript or protein. DISCUSSION Our findings indicate that the c.-237_236GA>TT THAP1 sequence variant does not increase risk for adult-onset primary dystonia in Caucasians.
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Affiliation(s)
- Jianfeng Xiao
- Department of Neurology, University of Tennessee Health Science Center, Memphis, Tennessee 38163, USA
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Abstract
In recent years, an increasingly detailed picture of gastrointestinal dysfunction in the setting of Parkinson's disease has emerged. Abnormalities of function may occur at virtually all levels of the gastrointestinal tract. Weight loss, dental deterioration, salivary excess, dysphagia, gastroparesis, decreased bowel movement frequency, and anorectal dysfunction all may occur. The pathophysiologic basis for this dysfunction entails both central and enteric nervous system involvement.
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Affiliation(s)
- Ronald F Pfeiffer
- Department of Neurology, University of Tennessee Health Science Center, 855 Monroe Avenue, Memphis, TN 38163, USA.
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Marder KS, Tang MX, Mejia-Santana H, Rosado L, Louis ED, Comella CL, Colcher A, Siderowf AD, Jennings D, Nance MA, Bressman S, Scott WK, Tanner CM, Mickel SF, Andrews HF, Waters C, Fahn S, Ross BM, Cote LJ, Frucht S, Ford B, Alcalay RN, Rezak M, Novak K, Friedman JH, Pfeiffer RF, Marsh L, Hiner B, Neils GD, Verbitsky M, Kisselev S, Caccappolo E, Ottman R, Clark LN. Predictors of parkin mutations in early-onset Parkinson disease: the consortium on risk for early-onset Parkinson disease study. ACTA ACUST UNITED AC 2010; 67:731-8. [PMID: 20558392 DOI: 10.1001/archneurol.2010.95] [Citation(s) in RCA: 70] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
BACKGROUND Mutations in the parkin gene are the most common genetic cause of early-onset Parkinson disease (PD). Results from a multicenter study of patients with PD systematically sampled by age at onset have not been reported to date. OBJECTIVE To determine risk factors associated with carrying parkin mutations. DESIGN Cross-sectional observational study. SETTING Thirteen movement disorders centers. PARTICIPANTS A total of 956 patients with early-onset PD, defined as age at onset younger than 51 years. MAIN OUTCOME MEASURES Presence of heterozygous, homozygous, or compound heterozygous parkin mutations. RESULTS Using a previously validated interview, 14.7% of patients reported a family history of PD in a first-degree relative. Sixty-four patients (6.7%) had parkin mutations (3.9% heterozygous, 0.6% homozygous, and 2.2% compound heterozygous). Copy number variation was present in 52.3% of mutation carriers (31.6% of heterozygous, 83.3% of homozygous, and 81.0% of compound heterozygous). Deletions in exons 3 and 4 and 255delA were common among Hispanics (specifically Puerto Ricans). Younger age at onset (<40 years) (odds ratio [OR], 5.0; 95% confidence interval [CI], 2.8-8.8; P = .001), Hispanic race/ethnicity (OR compared with white non-Hispanic race/ethnicity, 2.7; 95% CI, 1.3-5.7; P = .009), and family history of PD in a first-degree relative (OR compared with noncarriers, 2.8; 95% CI, 1.5-5.3; P = .002) were associated with carrying any parkin mutation (heterozygous, homozygous, or compound heterozygous). Hispanic race/ethnicity was associated with carrying a heterozygous mutation (OR compared with white non-Hispanic race/ethnicity, 2.8; 95% CI, 1.1-7.2; P = .03) after adjustment for covariates. CONCLUSIONS Age at onset, Hispanic race/ethnicity, and family history of PD are associated with carrying any parkin mutation (heterozygous, homozygous, or compound heterozygous) and heterozygous mutations alone. The increased odds of carrying a parkin mutation among Hispanics warrants further study.
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Affiliation(s)
- Karen S Marder
- Taub Institute for Research on Alzheimer's Disease and the Aging Brain, College of Physicians and Surgeons, Columbia University, 630 W 168th St, Unit 16, New York, NY 10032, USA.
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Simon DK, Pankratz N, Kissell DK, Pauciulo MW, Halter CA, Rudolph A, Pfeiffer RF, Nichols WC, Foroud T. Maternal inheritance and mitochondrial DNA variants in familial Parkinson's disease. BMC Med Genet 2010; 11:53. [PMID: 20356410 PMCID: PMC2858137 DOI: 10.1186/1471-2350-11-53] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/09/2009] [Accepted: 04/01/2010] [Indexed: 11/17/2022]
Abstract
Background Mitochondrial function is impaired in Parkinson's disease (PD) and may contribute to the pathogenesis of PD, but the causes of mitochondrial impairment in PD are unknown. Mitochondrial dysfunction is recapitulated in cell lines expressing mitochondrial DNA (mtDNA) from PD patients, implicating mtDNA variants or mutations, though the role of mtDNA variants or mutations in PD risk remains unclear. We investigated the potential contribution of mtDNA variants or mutations to the risk of PD. Methods We examined the possibility of a maternal inheritance bias as well as the association between mitochondrial haplogroups and maternal inheritance and disease risk in a case-control study of 168 multiplex PD families in which the proband and one parent were diagnosed with PD. 2-tailed Fisher Exact Tests and McNemar's tests were used to compare allele frequencies, and a t-test to compare ages of onset. Results The frequency of affected mothers of the proband with PD (83/167, 49.4%) was not significantly different from the frequency of affected females of the proband generation (115/259, 44.4%) (Odds Ratio 1.22; 95%CI 0.83 - 1.81). After correcting for multiple tests, there were no significant differences in the frequencies of mitochondrial haplogroups or of the 10398G complex I gene polymorphism in PD patients compared to controls, and no significant associations with age of onset of PD. Mitochondrial haplogroup and 10398G polymorphism frequencies were similar in probands having an affected father as compared to probands having an affected mother. Conclusions These data fail to demonstrate a bias towards maternal inheritance in familial PD. Consistent with this, we find no association of common haplogroup-defining mtDNA variants or for the 10398G variant with the risk of PD. However, these data do not exclude a role for mtDNA variants in other populations, and it remains possible that other inherited mitochondrial DNA variants, or somatic mDNA mutations, contribute to the risk of familial PD.
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Affiliation(s)
- David K Simon
- Department of Neurology, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA, USA.
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Xiao J, Bastian RW, Perlmutter JS, Racette BA, Tabbal SD, Karimi M, Paniello R, Blitzer A, Batish SD, Wszolek ZK, Uitti RJ, Van Gerpen JA, Hedera P, Simon DK, Tarsy D, Truong DD, Frei KP, Pfeiffer RF, Gong S, LeDoux MS. Novel human pathological mutations. Gene symbol: THAP1. Disease: dystonia 6. Hum Genet 2010; 127:470. [PMID: 21488298] [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] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
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Xiao J, Zhao Y, Bastian RW, Perlmutter JS, Racette BA, Tabbal SD, Karimi M, Paniello R, Blitzer A, Batish SD, Wszolek ZK, Uitti RJ, Van Gerpen JA, Hedera P, Simon DK, Tarsy D, Truong DD, Frei KP, Pfeiffer RF, Gong S, LeDoux MS. Novel human pathological mutations. Gene symbol: THAP1. Disease: dystonia 6. Hum Genet 2010; 127:470. [PMID: 21488297] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Affiliation(s)
- Jianfeng Xiao
- Department of Neurology, UTHSC, Memphis, TN 38163, USA.
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Xiao J, Zhao Y, Bastian RW, Perlmutter JS, Racette BA, Tabbal SD, Karimi M, Paniello R, Blitzer A, Batish SD, Wszolek ZK, Uitti RJ, Van Gerpen JA, Hedera P, Simon DK, Tarsy D, Truong DD, Frei KP, Pfeiffer RF, Gong S, LeDoux MS. Novel human pathological mutations. Gene symbol: THAP1. Disease: dystonia 6. Hum Genet 2010; 127:469-470. [PMID: 21488296] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
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Xiao J, Zhao Y, Bastian RW, Perlmutter JS, Racette BA, Tabbal SD, Karimi M, Paniello R, Blitzer A, Batish SD, Wszolek ZK, Uitti RJ, Van Gerpen JA, Hedera P, Simon DK, Tarsy D, Truong DD, Frei KP, Pfeiffer RF, Gong S, LeDoux MS. Novel human pathological mutations. Gene symbol: THAP1. Disease: dystonia 6. Hum Genet 2010; 127:469. [PMID: 21488277] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
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Xiao J, Zhao Y, Bastian RW, Perlmutter JS, Racette BA, Tabbal SD, Karimi M, Paniello R, Blitzer A, Batish SD, Wszolek ZK, Uitti RJ, Van Gerpen JA, Hedera P, Simon DK, Tarsy D, Truong DD, Frei KP, Pfeiffer RF, Gong S, LeDoux MS. Novel human pathological mutations. Gene symbol: THAP1. Disease: dystonia 6. Hum Genet 2010; 127:470. [PMID: 21488252] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
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Schilling BK, Pfeiffer RF, Ledoux MS, Karlage RE, Bloomer RJ, Falvo MJ. Effects of moderate-volume, high-load lower-body resistance training on strength and function in persons with Parkinson's disease: a pilot study. Parkinsons Dis 2010; 2010:824734. [PMID: 20976096 PMCID: PMC2957327 DOI: 10.4061/2010/824734] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/02/2009] [Revised: 10/27/2009] [Accepted: 01/18/2010] [Indexed: 01/12/2023]
Abstract
Background. Resistance training research has demonstrated positive effects for persons with Parkinson's disease (PD), but the number of acute training variables that can be manipulated makes it difficult to determine the optimal resistance training program. Objective. The purpose of this investigation was to examine the effects of an 8-week resistance training intervention on strength and function in persons with PD. Methods. Eighteen men and women were randomized to training or standard care for the 8-week intervention. The training group performed 3 sets of 5–8 repetitions of the leg press, leg curl, and calf press twice weekly. Tests included leg press strength relative to body mass, timed up-and-go, six-minute walk, and Activities-specific Balance Confidence questionnaire. Results. There was a significant group-by-time effect for maximum leg press strength relative to body mass, with the training group significantly increasing their maximum relative strength (P < .05). No other significant interactions were noted (P > .05). Conclusions. Moderate volume, high-load weight training is effective for increasing lower-body strength in persons with PD.
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Affiliation(s)
- Brian K Schilling
- Exercise Neuromechanics Laboratory, The University of Memphis, Memphis, TN 38152, USA
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Xiao J, Zhao Y, Bastian RW, Perlmutter JS, Racette BA, Tabbal SD, Karimi M, Paniello RC, Wszolek ZK, Uitti RJ, Van Gerpen JA, Simon DK, Tarsy D, Hedera P, Truong DD, Frei KP, Dev Batish S, Blitzer A, Pfeiffer RF, Gong S, LeDoux MS. Novel THAP1 sequence variants in primary dystonia. Neurology 2010; 74:229-38. [PMID: 20083799 DOI: 10.1212/wnl.0b013e3181ca00ca] [Citation(s) in RCA: 83] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
BACKGROUND THAP1 encodes a transcription factor (THAP1) that harbors an atypical zinc finger domain and regulates cell proliferation. An exon 2 insertion/deletion frameshift mutation in THAP1 is responsible for DYT6 dystonia in Amish-Mennonites. Subsequent screening efforts in familial, mainly early-onset, primary dystonia identified additional THAP1 sequence variants in non-Amish subjects. OBJECTIVE To examine a large cohort of subjects with mainly adult-onset primary dystonia for sequence variants in THAP1. METHODS With high-resolution melting, all 3 THAP1 exons were screened for sequence variants in 1,114 subjects with mainly adult-onset primary dystonia, 96 with unclassified dystonia, and 600 controls (400 neurologically normal and 200 with Parkinson disease). In addition, all 3 THAP1 exons were sequenced in 200 subjects with dystonia and 200 neurologically normal controls. RESULTS Nine unique melting curves were found in 19 subjects from 16 families with primary dystonia and 1 control. Age at dystonia onset ranged from 8 to 69 years (mean 48 years). Sequencing identified 6 novel missense mutations in conserved regions of THAP1 (G9C [cervical, masticatory, arm], D17G [cervical], F132S [laryngeal], I149T [cervical and generalized], A166T [laryngeal], and Q187K [cervical]). One subject with blepharospasm and another with laryngeal dystonia harbored a c.-42C>T variant. A c.57C>T silent variant was found in 1 subject with segmental craniocervical dystonia. An intron 1 variant (c.71+9C>A) was present in 7 subjects with dystonia (7/1,210) but only 1 control (1/600). CONCLUSIONS A heterogeneous collection of THAP1 sequence variants is associated with varied anatomical distributions and onset ages of both familial and sporadic primary dystonia.
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Affiliation(s)
- J Xiao
- Department of Neurology, University of Tennessee Health Science Center, Memphis, TN 38163, USA
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Abstract
In recent years, there has been increasing recognition of the presence of gastrointestinal (GI) dysfunction in the setting of neurologic diseases. Parkinson's disease is a particularly well-known example, but GI dysfunction also may occur in multiple sclerosis, stroke, and in various myopathic and peripheral neuropathic processes. There is much less awareness, however, that primary GI diseases may also display neurologic dysfunction as part of their clinical picture. This article focuses on some of those disease processes. Illnesses primarily targeting the GI tract are addressed and examples of primary esophageal, gastric, and intestinal disease processes are described.
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Affiliation(s)
- Ronald F Pfeiffer
- Department of Neurology, University of Tennessee Health Science Center, 855 Monroe Avenue, Memphis, TN 38163, USA.
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Pfeiffer RF, Wszolek ZK. Annual Report. Parkinsonism Relat Disord 2010; 16:1. [DOI: 10.1016/j.parkreldis.2009.12.005] [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: 11/16/2022]
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Pankratz N, Nichols WC, Elsaesser VE, Pauciulo MW, Marek DK, Halter CA, Wojcieszek J, Rudolph A, Pfeiffer RF, Foroud T. Alpha-synuclein and familial Parkinson's disease. Mov Disord 2009; 24:1125-31. [PMID: 19412953 DOI: 10.1002/mds.22524] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
Whole gene duplications and triplications of alpha-synuclein (SNCA) can cause Parkinson's disease (PD), and variation in the promoter region (Rep1) and 3' region of SNCA has been reported to increase disease susceptibility. Within our cohort, one affected individual from each of 92 multiplex PD families showing the greatest evidence of linkage to the region around SNCA was screened for dosage alterations and sequence changes; no dosage or non-synonymous sequence changes were found. In addition, 737 individuals (from 450 multiplex PD families) that met strict diagnostic criteria for PD and did not harbor a known causative mutation, as well as 359 neurologically normal controls, were genotyped for the Rep1 polymorphism and four SNPs in the 3' region of SNCA. The four SNPs were in high LD (r(2) > 0.95) and were analyzed as a haplotype. The effects of the Rep1 genotype and the 3' haplotype were evaluated using regression models employing only one individual per family. Cases had a 3% higher frequency of the Rep1 263 bp allele compared with controls (OR = 1.54; empirical P-value = 0.02). There was an inverse linear relationship between the number of 263 bp alleles and age of onset (empirical P-value = 0.0004). The 3' haplotype was also associated with disease (OR = 1.29; empirical P-value = 0.01), but not age of onset (P = 0.40). These data suggest that dosage and sequence changes are a rare cause of PD, but variation in the promoter and 3' region of SNCA convey an increased risk for PD.
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Affiliation(s)
- Nathan Pankratz
- Department of Medical and Molecular Genetics, Indiana University Medical Center, Indianapolis, Indiana 46202, USA.
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Pankratz N, Kissell DK, Pauciulo MW, Halter CA, Rudolph A, Pfeiffer RF, Marder KS, Foroud T, Nichols WC. Parkin dosage mutations have greater pathogenicity in familial PD than simple sequence mutations. Neurology 2009; 73:279-86. [PMID: 19636047 DOI: 10.1212/wnl.0b013e3181af7a33] [Citation(s) in RCA: 56] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
OBJECTIVE Mutations in both alleles of parkin have been shown to result in Parkinson disease (PD). However, it is unclear whether haploinsufficiency (presence of a mutation in only 1 of the 2 parkin alleles) increases the risk for PD. METHODS We performed comprehensive dosage and sequence analysis of all 12 exons of parkin in a sample of 520 independent patients with familial PD and 263 controls. We evaluated whether presence of a single parkin mutation, either a sequence (point mutation or small insertion/deletion) or dosage (whole exon deletion or duplication) mutation, was found at increased frequency in cases as compared with controls. We then compared the clinical characteristics of cases with 0, 1, or 2 parkin mutations. RESULTS We identified 55 independent patients with PD with at least 1 parkin mutation and 9 controls with a single sequence mutation. Cases and controls had a similar frequency of single sequence mutations (3.1% vs 3.4%, p = 0.83); however, the cases had a significantly higher rate of dosage mutations (2.6% vs 0%, p = 0.009). Cases with a single dosage mutation were more likely to have an earlier age at onset (50% with onset at < or =45 years) compared with those with no parkin mutations (10%, p = 0.00002); this was not true for cases with only a single sequence mutation (25% with onset at < or =45 years, p = 0.06). CONCLUSIONS Parkin haploinsufficiency, specifically for a dosage mutation rather than a point mutation or small insertion/deletion, is a risk factor for familial PD and may be associated with earlier age at onset.
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Affiliation(s)
- N Pankratz
- Medical and Molecular Genetics, Indiana University, School of Medicine, Hereditary Genomics Division, 410 W. 10th St., MI-4000, Indianapolis, IN 46202, USA.
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Schilling BK, Karlage RE, LeDoux MS, Pfeiffer RF, Weiss LW, Falvo MJ. Impaired leg extensor strength in individuals with Parkinson disease and relatedness to functional mobility. Parkinsonism Relat Disord 2009; 15:776-80. [PMID: 19560392 DOI: 10.1016/j.parkreldis.2009.06.002] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.7] [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: 11/01/2008] [Revised: 05/27/2009] [Accepted: 06/02/2009] [Indexed: 11/28/2022]
Abstract
Previous investigations have demonstrated leg strength deficits in persons with Parkinson's disease (PD) as compared to neurologically-normal adults. However, the exact mode of contraction by which strength is assessed may determine how closely such deficits are related to functional performance. The purpose of this study was to better understand the relationship of strength and functional mobility in persons with PD (n = 17, mean H&Y stage = 2.0) via comparison to a group of similar age healthy controls (n = 10) using a multi-joint isometric test of strength and various measures of functional mobility. Tests included isometric leg press maximum force relative to body mass, the Activities-specific Balance Confidence scale (ABC), postural sway under various unilateral stance and visual conditions, and the timed up and go (TUG). Relative force (p = 0.044) and ABC questionnaire mean scores (p < 0.001), showed controls performing better than PD subjects. The control group performed better than the PD group for length of path of the center of pressure except in the eyes closed positions (p < 0.05 for all). TUG time (p = 0.052) was not significantly different between the PD group and healthy controls. Leg press maximum force relative to body mass was however significantly correlated with TUG time (r = -0.68, p = 0.003) in persons with PD. There were no gender differences for any variables. These results suggest that some balance and functional mobility task performances are more worse for persons with mild-to-moderate PD than for neurologically-normal age-matched controls, which may be influenced by lessened lower extremity multi-joint strength. Strength training of the lower extremity utilizing such multi-joint actions may be beneficial for this population.
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Affiliation(s)
- Brian K Schilling
- Exercise Neuromechanics Laboratory, The University of Memphis, 314 Elma Neal Roane Fieldhouse, Memphis, TN 38152-3480, USA.
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Nichols WC, Kissell DK, Pankratz N, Pauciulo MW, Elsaesser VE, Clark KA, Halter CA, Rudolph A, Wojcieszek J, Pfeiffer RF, Foroud T. Variation in GIGYF2 is not associated with Parkinson disease. Neurology 2009; 72:1886-92. [PMID: 19279319 DOI: 10.1212/01.wnl.0000346517.98982.1b] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
OBJECTIVE A recent study reported that mutations in a gene on chromosome 2q36-37, GIGYF2, result in Parkinson disease (PD). We have previously reported linkage to this chromosomal region in a sample of multiplex PD families, with the strongest evidence of linkage obtained using the subset of the sample having the strongest family history of disease and meeting the strictest diagnostic criteria. We have tested whether mutations in GIGYF2 may account for the previously observed linkage finding. METHODS We sequenced the GIGYF2 coding region in 96 unrelated patients with PD used in our original study that contributed to the chromosome 2q36-37 linkage signal. Subsequently, we genotyped the entire sample of 566 multiplex PD kindreds as well as 1,447 controls to test whether variants in GIGYF2 are causative or increase susceptibility for PD. RESULTS We detected three novel variants as well as one of the previously reported seven variants in a total of five multiple PD families; however, there was no consistent evidence that these variants segregated with PD in these families. We also did not find a significant increase in risk for PD among those inheriting variants in GIGYF2 (p = 0.28). CONCLUSIONS We believe that variation in a gene other than GIGYF2 accounts for the previously reported linkage finding on chromosome 2q36-37.
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Affiliation(s)
- W C Nichols
- Division of Human Genetics, Cincinnati Children's Hospital Medical Center, 3333 Burnet Avenue, Cincinnati, OH 45229, USA.
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Xiao J, Bastian RW, Perlmutter JS, Racette BA, Tabbal SD, Karimi M, Paniello RC, Blitzer A, Batish SD, Wszolek ZK, Uitti RJ, Hedera P, Simon DK, Tarsy D, Truong DD, Frei KP, Pfeiffer RF, Gong S, Zhao Y, LeDoux MS. High-throughput mutational analysis of TOR1A in primary dystonia. BMC Med Genet 2009; 10:24. [PMID: 19284587 PMCID: PMC2661056 DOI: 10.1186/1471-2350-10-24] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/07/2008] [Accepted: 03/11/2009] [Indexed: 01/05/2023]
Abstract
Background Although the c.904_906delGAG mutation in Exon 5 of TOR1A typically manifests as early-onset generalized dystonia, DYT1 dystonia is genetically and clinically heterogeneous. Recently, another Exon 5 mutation (c.863G>A) has been associated with early-onset generalized dystonia and some ΔGAG mutation carriers present with late-onset focal dystonia. The aim of this study was to identify TOR1A Exon 5 mutations in a large cohort of subjects with mainly non-generalized primary dystonia. Methods High resolution melting (HRM) was used to examine the entire TOR1A Exon 5 coding sequence in 1014 subjects with primary dystonia (422 spasmodic dysphonia, 285 cervical dystonia, 67 blepharospasm, 41 writer's cramp, 16 oromandibular dystonia, 38 other primary focal dystonia, 112 segmental dystonia, 16 multifocal dystonia, and 17 generalized dystonia) and 250 controls (150 neurologically normal and 100 with other movement disorders). Diagnostic sensitivity and specificity were evaluated in an additional 8 subjects with known ΔGAG DYT1 dystonia and 88 subjects with ΔGAG-negative dystonia. Results HRM of TOR1A Exon 5 showed high (100%) diagnostic sensitivity and specificity. HRM was rapid and economical. HRM reliably differentiated the TOR1A ΔGAG and c.863G>A mutations. Melting curves were normal in 250/250 controls and 1012/1014 subjects with primary dystonia. The two subjects with shifted melting curves were found to harbor the classic ΔGAG deletion: 1) a non-Jewish Caucasian female with childhood-onset multifocal dystonia and 2) an Ashkenazi Jewish female with adolescent-onset spasmodic dysphonia. Conclusion First, HRM is an inexpensive, diagnostically sensitive and specific, high-throughput method for mutation discovery. Second, Exon 5 mutations in TOR1A are rarely associated with non-generalized primary dystonia.
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Affiliation(s)
- Jianfeng Xiao
- Department of Neurology, University of Tennessee Health Science Center, Memphis, TN, USA.
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Nichols WC, Pankratz N, Marek DK, Pauciulo MW, Elsaesser VE, Halter CA, Rudolph A, Wojcieszek J, Pfeiffer RF, Foroud T. Mutations in GBA are associated with familial Parkinson disease susceptibility and age at onset. Neurology 2009; 72:310-6. [PMID: 18987351 PMCID: PMC2677501 DOI: 10.1212/01.wnl.0000327823.81237.d1] [Citation(s) in RCA: 175] [Impact Index Per Article: 11.7] [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: 11/15/2022] Open
Abstract
OBJECTIVE To characterize sequence variation within the glucocerebrosidase (GBA) gene in a select subset of our sample of patients with familial Parkinson disease (PD) and then to test in our full sample whether these sequence variants increased the risk for PD and were associated with an earlier onset of disease. METHODS We performed a comprehensive study of all GBA exons in one patient with PD from each of 96 PD families, selected based on the family-specific lod scores at the GBA locus. Identified GBA variants were subsequently screened in all 1325 PD cases from 566 multiplex PD families and in 359 controls. RESULTS Nine different GBA variants, five previously reported, were identified in 21 of the 96 PD cases sequenced. Screening for these variants in the full sample identified 161 variant carriers (12.2%) in 99 different PD families. An unbiased estimate of the frequency of the five previously reported GBA variants in the familial PD sample was 12.6% and in the control sample was 5.3% (odds ratio 2.6; 95% confidence interval 1.5-4.4). Presence of a GBA variant was associated with an earlier age at onset (p = 0.0001). On average, those patients carrying a GBA variant had onset with PD 6.04 years earlier than those without a GBA variant. CONCLUSIONS This study suggests that GBA is a susceptibility gene for familial Parkinson disease (PD) and patients with GBA variants have an earlier age at onset than patients with PD without GBA variants.
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Affiliation(s)
- W C Nichols
- Associate Division of Human Genetics, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA.
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