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Gao Z, Solders A, Al-Adili A, Beliuskina O, Eronen T, Kankainen A, Lantz M, Moore ID, Nesterenko DA, Penttilä H, Pomp S, Sjöstrand H. Applying machine learning methods for the analysis of two-dimensional mass spectra. Eur Phys J A Hadron Nucl 2023; 59:169. [PMID: 37502124 PMCID: PMC10368573 DOI: 10.1140/epja/s10050-023-01080-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Accepted: 07/06/2023] [Indexed: 07/29/2023]
Abstract
In a measurement of isomeric yield-ratios in fission, the Phase-Imaging Ion-Cyclotron-Resonance technique, which projects the radial motions of ions in the Penning trap (JYFLTRAP) onto a position-sensitive micro-channel plate detector, has been applied. To obtain the yield ratio, that is the relative population of two states of an isomer pair, a novel analysis procedure has been developed to determine the number of detected ions in each state, as well as corrections for the detector efficiency and decay losses. In order to determine the population of the states in cases where their mass difference is too small to reach full separation, a Bayesian Gaussian Mixture model was implemented. The position-dependent efficiency of the micro-channel plate detector was calibrated by mapping it with 133 Cs+ ions, and a Gaussian Process was trained with the position data to construct an efficiency function that could be used to correct the recorded distributions. The obtained numbers of counts of excited and ground-state ions were used to derive the isomeric yield ratio, taking into account decay losses as well as feeding from precursors.
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Affiliation(s)
- Z. Gao
- Department of Physics and Astronomy, Uppsala University, BOX 516, 75120 Uppsala, Sweden
| | - A. Solders
- Department of Physics and Astronomy, Uppsala University, BOX 516, 75120 Uppsala, Sweden
| | - A. Al-Adili
- Department of Physics and Astronomy, Uppsala University, BOX 516, 75120 Uppsala, Sweden
| | - O. Beliuskina
- Department of Physics, Accelerator laboratory, University of Jyväskylä, P.O. Box 35(YFL), 40014 Jyväskylä, Finland
| | - T. Eronen
- Department of Physics, Accelerator laboratory, University of Jyväskylä, P.O. Box 35(YFL), 40014 Jyväskylä, Finland
| | - A. Kankainen
- Department of Physics, Accelerator laboratory, University of Jyväskylä, P.O. Box 35(YFL), 40014 Jyväskylä, Finland
| | - M. Lantz
- Department of Physics and Astronomy, Uppsala University, BOX 516, 75120 Uppsala, Sweden
| | - I. D. Moore
- Department of Physics, Accelerator laboratory, University of Jyväskylä, P.O. Box 35(YFL), 40014 Jyväskylä, Finland
| | - D. A. Nesterenko
- Department of Physics, Accelerator laboratory, University of Jyväskylä, P.O. Box 35(YFL), 40014 Jyväskylä, Finland
| | - H. Penttilä
- Department of Physics, Accelerator laboratory, University of Jyväskylä, P.O. Box 35(YFL), 40014 Jyväskylä, Finland
| | - S. Pomp
- Department of Physics and Astronomy, Uppsala University, BOX 516, 75120 Uppsala, Sweden
| | - H. Sjöstrand
- Department of Physics and Astronomy, Uppsala University, BOX 516, 75120 Uppsala, Sweden
| | - the IGISOL team
- Department of Physics, Accelerator laboratory, University of Jyväskylä, P.O. Box 35(YFL), 40014 Jyväskylä, Finland
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GomezAbreu N, Lantz M, Cummings N, Sidor M. Psychiatry Residents Knowledge of Advanced Directives and Advanced Care Planning: Beyond Checking the Boxes. The American Journal of Geriatric Psychiatry 2023. [DOI: 10.1016/j.jagp.2022.12.241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
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Cummings N, Lantz M, GomezAbreu N, Sidor M. Infusing the "Motivation" into Motivational Interviewing: Addressing Unique Challenges in Older Adults with Substance Use Disorders. The American Journal of Geriatric Psychiatry 2023. [DOI: 10.1016/j.jagp.2022.12.232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
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Mosharraf N, Estevez TP, Achmad E, Cohen L, Lantz M. Long-acting Injectable Antipsychotic Agents in Older Adults: Better or Worse Outcomes? The American Journal of Geriatric Psychiatry 2023. [DOI: 10.1016/j.jagp.2022.12.225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
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Schultz S, Patel M, Patel A, Lantz M, Padala P. An Inclusive Approach to Geriatric Specialization: The Society for Post-Acute and LTC Medicine AMDA Certified Medical Director Program as a Model for Association-based Training. The American Journal of Geriatric Psychiatry 2022. [DOI: 10.1016/j.jagp.2022.01.271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Lantz M, Blissett KA, Tondehal N. "Am I Not Allowed to be Comfortable?" The Doubled Edged Sword of Benzodiazepine Prescriptions in Older Adults. The American Journal of Geriatric Psychiatry 2022. [DOI: 10.1016/j.jagp.2022.01.222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Lantz M, Levya R, Hartman J, DiGenova P, Swift A. The Withdrawal After the Withdrawal: Managing Benzodiazepine Reduction and Post-Acute Withdrawal in Older Adults. The American Journal of Geriatric Psychiatry 2021. [DOI: 10.1016/j.jagp.2021.01.096] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Abstract
The generation of angular momentum in the fission process is still an open question. To shed light on this topic, we started a series of measurements at the IGISOL-JYFLTRAP facility in Finland. Highprecision measurements of isomeric yield ratios (IYR) are performed with a Penning trap, partly with the aim to extract average root-mean-square (rms) quantities of fragment spin distributions. The newly installed Phase-Imaging Ion-Cyclotron Resonance (PI-ICR) technique allows the separation of masses down to tens of keV, which is suffcient to disentangle many isomers. In this paper, we first summarize the previous measurements on the neutron and proton-induced fission of uranium and thorium, e.g. the odd cadmium and indium isotopes (119 ≤ A ≤ 127). The measurements revealed systematic trends as function of mass number, which stimulated further exploration. A recent measurement was performed at IGISIOL and several new IYR data will soon be published, for the first time. Secondly, we employ the TALYS nuclear-reaction code to model one of the newly measured isomer yields. Detailed GEF and TALYS calculations are discussed for the fragment angular momentum distribution in 134I.
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Gao Z, Solders A, Al-Adili A, Canete L, Eronen T, Gorelov D, Jokinen A, Kankainen A, Lantz M, Mattera A, Moore I, Nesterenko D, Penttilä H, Pohjalainen I, Rakopoulos V, Rinta-Antila S, Vilén M, Pomp S. Fission studies at IGISOL/JYFLTRAP: Simulations of the ion guide for neutron-induced fission and comparison with experimental data. EPJ Web Conf 2020. [DOI: 10.1051/epjconf/202023917019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
For the production of exotic nuclei at the IGISOL facility, an ion guide for neutron-induced fission has been developed and tested in experiments. Fission fragments are produced inside the ion guide and collected using a helium buffer gas. Meanwhile, a GEANT4 model has been developed to simulate the transportation and stopping of the charged fission products. In a recent measurement of neutron-induced fission yields, implantation foils were located at different positions in the ion guide. The gamma spectra from these foils and the fission targets are compared to the results from the GEANT4 simulation.
In order to allow fission yield measurements in the low yield regions, towards the tails and in the symmetric part of the mass distribution, the stopping and extraction efficiency of the ion guide has to be significantly improved. This objective can be achieved by increasing the size while introducing electric field guidance using a combination of static electrodes and an RF-carpet. To this end, the GEANT4 model is used to optimise the design of such an ion guide.
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Shahida B, Johnson PS, Jain R, Brorson H, Åsman P, Lantz M, Planck T. Simvastatin downregulates adipogenesis in 3T3-L1 preadipocytes and orbital fibroblasts from Graves' ophthalmopathy patients. Endocr Connect 2019; 8:1230-1239. [PMID: 31394503 PMCID: PMC6733370 DOI: 10.1530/ec-19-0319] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/28/2019] [Accepted: 08/05/2019] [Indexed: 01/04/2023]
Abstract
BACKGROUND Smoking is a strong risk factor for the development of Graves' ophthalmopathy (GO). Immediate early genes (IEGs) are overexpressed in patients with active GO compared to healthy controls. The aim of this study was to study the effects of tobacco smoking and simvastatin on preadipocytes and orbital fibroblasts (OFs) in the adipogenic process. METHODS Cigarette smoke extract (CSE) was generated by a validated pump system. Mouse 3T3-L1 preadipocytes or OFs were exposed to 10% CSE with or without simvastatin. Gene expression was studied in preadipocytes and OFs exposed to CSE with or without simvastatin and compared to unexposed cells or cells treated with a differentiation cocktail. RESULTS In 3T3-L1 preadipocytes, Cyr61, Ptgs2, Egr1 and Zfp36 expression levels were two-fold higher in cells exposed to CSE than in unexposed cells. Simvastatin downregulated the expression of these genes (1.6-fold, 5.5-fold, 3.3-fold, 1.4-fold, respectively). CSE alone could not stimulate preadipocytes to differentiate. Scd1, Ppar-γ and adipogenesis were downregulated in simvastatin-treated preadipocytes compared to nontreated preadipocytes 18-, 35- and 1.7-fold, respectively. In OFs, similar effects of CSE were seen on the expression of CYR61 (1.4-fold) and PTGS2 (3-fold). Simvastatin downregulated adipogenesis, PPAR-γ (2-fold) and SCD (27-fold) expression in OFs. CONCLUSION CSE upregulated early adipogenic genes in both mouse 3T3-L1 preadipocytes and human OFs but did not by itself induce adipogenesis. Simvastatin inhibited the expression of both early and late adipogenic genes and adipogenesis in preadipocytes and human OFs. The effect of simvastatin should be investigated in a clinical trial of patients with GO.
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Affiliation(s)
- B Shahida
- Department of Clinical Sciences, Genomics, Diabetes and Endocrinology, Lund University, Malmö, Sweden
- Department of Diabetes and Endocrinology, Skåne University Hospital, Malmö, Sweden
- Correspondence should be addressed to B Shahida:
| | - P Sahlstrand Johnson
- Department of Oto-Rhino-Laryngology, Skåne University Hospital, Malmö, Sweden
- Department of Clinical Sciences, Lund University, Malmö, Sweden
| | - R Jain
- Department of Clinical Sciences, Genomics, Diabetes and Endocrinology, Lund University, Malmö, Sweden
| | - H Brorson
- Department of Clinical Sciences, Lund University, Malmö, Sweden
- Department of Plastic Surgery, Skåne University Hospital, Malmö, Sweden
| | - P Åsman
- Department of Clinical Sciences Malmö, Ophthalmology, Lund University, Malmö, Sweden
- Department of Ophthalmology, Skåne University Hospital, Malmö, Sweden
| | - M Lantz
- Department of Clinical Sciences, Genomics, Diabetes and Endocrinology, Lund University, Malmö, Sweden
- Department of Diabetes and Endocrinology, Skåne University Hospital, Malmö, Sweden
| | - T Planck
- Department of Clinical Sciences, Genomics, Diabetes and Endocrinology, Lund University, Malmö, Sweden
- Department of Diabetes and Endocrinology, Skåne University Hospital, Malmö, Sweden
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Acciarri R, Adams C, Asaadi J, Baller B, Bolton T, Bromberg C, Cavanna F, Church E, Edmunds D, Ereditato A, Farooq S, Ferrari A, Fitzpatrick R, Fleming B, Hackenburg A, Horton-Smith G, James C, Lang K, Lantz M, Lepetic I, Littlejohn B, Luo X, Mehdiyev R, Page B, Palamara O, Rebel B, Sala P, Scanavini G, Schukraft A, Smirnov G, Soderberg M, Spitz J, Szelc A, Weber M, Wu W, Yang T, Zeller G. Demonstration of MeV-scale physics in liquid argon time projection chambers using ArgoNeuT. Int J Clin Exp Med 2019. [DOI: 10.1103/physrevd.99.012002] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Perry W, Lacritz L, Roebuck-Spencer T, Silver C, Denney RL, Meyers J, McConnel CE, Pliskin N, Adler D, Alban C, Bondi M, Braun M, Cagigas X, Daven M, Drozdick L, Foster NL, Hwang U, Ivey L, Iverson G, Kramer J, Lantz M, Latts L, Maria Lopez A, Malone M, Martin-Plank L, Maslow K, Melady D, Messer M, Most R, Norris MP, Shafer D, Thomas CM, Thornhill L, Tsai J, Vakharia N, Waters M, Golden T. Population Health Solutions for Assessing Cognitive Impairment in Geriatric Patients. Clin Neuropsychol 2018; 32:1193-1225. [DOI: 10.1080/13854046.2018.1517503] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- William Perry
- National Academy of Neuropsychology (NAN)
- NAN
- University of California, San Diego
| | - Laura Lacritz
- National Academy of Neuropsychology (NAN)
- UT Southwestern Medical Center
| | | | | | - Robert L. Denney
- National Academy of Neuropsychology (NAN)
- Missouri Memory Center, Citizens Memorial Healthcare
| | | | | | | | - Deb Adler
- Senior Vice President Network Strategy, Optum of United Health Group
| | | | - Mark Bondi
- Society for Clinical Neuropsychology (SCN)
| | | | | | | | | | - Norman L. Foster
- American Academy of Neurology (AAN)
- Center for Alzheimer’s Care, Imaging and Research, Department of Neurology, University of Utah
| | - Ula Hwang
- Geriatric EM Section, American College of Emergency Physicians (ACEP)
- Department of Emergency Medicine
- Icahn School of Medicine at Mount Sinai, Geriatric Research Education, and Clinical Center, James J. Peters VAMC Geriatric EM Section
- American College of Emergency Physicians (ACEP)
| | - Laurie Ivey
- Collaborative Family Healthcare Association (CFHA)
| | - Grant Iverson
- National Academy of Neuropsychology (NAN)
- Neuropsychology Outcome Assessment Laboratory and Director, Massachusetts General Hospital for Children Sports Concussion Program, Harvard Medical School
| | - Joel Kramer
- International Neuropsychological Society (INS)
| | | | | | - Ana Maria Lopez
- American College of Physicians (ACP)
- Health Equity and Inclusion, University of Utah Health Sciences Center
- Cancer Health Equity, Huntsman Cancer Institute
- University of Utah School of Medicine
| | - Michael Malone
- American Geriatrics Society
- Aurora Senior Services, Aurora Health Care
| | | | | | - Don Melady
- Schwartz/Reisman Emergency Medicine Institute, Mount Sinai Hospital, University of Toronto
- Canadian Association of Emergency Physicians
- International Federation of Emergency Medicine
| | - Melissa Messer
- Research & Development, Psychological Assessment Resources, Inc. (PAR)
| | - Randi Most
- American Board of Professional Neuropsychology (ABN)
| | | | | | | | | | - Jean Tsai
- American Academy of Neurology (AAN)
- University of Colorado, Denver Health
| | | | - Martin Waters
- Clinical Innovation and Thought Leadership, Beacon Health Options
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Perry W, Lacritz L, Roebuck-Spencer T, Silver C, Denney RL, Meyers J, McConnel CE, Pliskin N, Adler D, Alban C, Bondi M, Braun M, Cagigas X, Daven M, Drozdick L, Foster NL, Hwang U, Ivey L, Iverson G, Kramer J, Lantz M, Latts L, Ling SM, Lopez AM, Malone M, Martin-Plank L, Maslow K, Melady D, Messer M, Most R, Norris MP, Shafer D, Silverberg N, Thomas CM, Thornhill L, Tsai J, Vakharia N, Waters M, Golden T. Population Health Solutions for Assessing Cognitive Impairment in Geriatric Patients. Arch Clin Neuropsychol 2018; 33:655-675. [PMID: 30339202 PMCID: PMC6201735 DOI: 10.1093/arclin/acy052] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2018] [Accepted: 06/08/2018] [Indexed: 12/17/2022] Open
Abstract
SUMMIT PARTICIPANTS ORGANIZATIONS REPRESENTED
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Affiliation(s)
- William Perry
- National Academy of Neuropsychology (NAN)
- NAN
- University of California, San Diego
| | - Laura Lacritz
- National Academy of Neuropsychology (NAN)
- UT Southwestern Medical Center
| | | | | | - Robert L Denney
- National Academy of Neuropsychology (NAN)
- Missouri Memory Center, Citizens Memorial Healthcare
| | | | | | | | - Deb Adler
- Senior Vice President Network Strategy, Optum of United Health Group
| | | | - Mark Bondi
- Society for Clinical Neuropsychology (SCN)
| | | | | | | | | | - Norman L Foster
- American Academy of Neurology (AAN)
- Center for Alzheimer's Care, Imaging and Research, Department of Neurology, University of Utah
| | - Ula Hwang
- Geriatric EM Section, American College of Emergency Physicians (ACEP)
- Department of Emergency Medicine
- Icahn School of Medicine at Mount Sinai, Geriatric Research Education, and Clinical Center, James J. Peters VAMC Geriatric EM Section
- American College of Emergency Physicians (ACEP)
| | - Laurie Ivey
- Collaborative Family Healthcare Association (CFHA)
| | - Grant Iverson
- National Academy of Neuropsychology (NAN)
- Neuropsychology Outcome Assessment Laboratory and Director, Massachusetts General Hospital for Children Sports Concussion Program, Harvard Medical School
| | - Joel Kramer
- International Neuropsychological Society (INS)
| | | | | | - Shari M Ling
- Centers for Medicare and Medicaid Services (CMS)
| | - Ana Maria Lopez
- American College of Physicians (ACP)
- Health Equity and Inclusion, University of Utah Health Sciences Center
- Cancer Health Equity, Huntsman Cancer Institute
- University of Utah School of Medicine
| | - Michael Malone
- American Geriatrics Society
- Aurora Senior Services, Aurora Health Care
| | | | | | - Don Melady
- Schwartz/Reisman Emergency Medicine Institute, Mount Sinai Hospital, University of Toronto
- Canadian Association of Emergency Physicians
- International Federation of Emergency Medicine
| | - Melissa Messer
- Research & Development, Psychological Assessment Resources, Inc. (PAR)
| | - Randi Most
- American Board of Professional Neuropsychology (ABN)
| | | | | | - Nina Silverberg
- Alzheimer's Disease Centers (ADC) Program, National Institute on Aging (NIA)
| | | | | | - Jean Tsai
- American Academy of Neurology (AAN)
- University of Colorado, Denver Health
| | | | - Martin Waters
- Clinical Innovation and Thought Leadership, Beacon Health Options
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Perry W, Lacritz L, Roebuck-Spencer T, Silver C, Denney RL, Meyers J, McConnel CE, Pliskin N, Adler D, Alban C, Bondi M, Braun M, Cagigas X, Daven M, Drozdick L, Foster NL, Hwang U, Ivey L, Iverson G, Kramer J, Lantz M, Latts L, Ling SM, Maria Lopez A, Malone M, Martin-Plank L, Maslow K, Melady D, Messer M, Most R, Norris MP, Shafer D, Silverberg N, Thomas CM, Thornhill L, Tsai J, Vakharia N, Waters M, Golden T. Population Health Solutions for Assessing Cognitive Impairment in Geriatric Patients. Innov Aging 2018; 2:igy025. [PMID: 30480142 PMCID: PMC6183165 DOI: 10.1093/geroni/igy025] [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] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
In December 2017, the National Academy of Neuropsychology convened an interorganizational Summit on Population Health Solutions for Assessing Cognitive Impairment in Geriatric Patients in Denver, Colorado. The Summit brought together representatives of a broad range of stakeholders invested in the care of older adults to focus on the topic of cognitive health and aging. Summit participants specifically examined questions of who should be screened for cognitive impairment and how they should be screened in medical settings. This is important in the context of an acute illness given that the presence of cognitive impairment can have significant implications for care and for the management of concomitant diseases as well as pose a major risk factor for dementia. Participants arrived at general principles to guide future screening approaches in medical populations and identified knowledge gaps to direct future research. Key learning points of the summit included: recognizing the importance of educating patients and healthcare providers about the value of assessing current and baseline cognition;emphasizing that any screening tool must be appropriately normalized and validated in the population in which it is used to obtain accurate information, including considerations of language, cultural factors, and education; andrecognizing the great potential, with appropriate caveats, of electronic health records to augment cognitive screening and tracking of changes in cognitive health over time.
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Affiliation(s)
- William Perry
- National Academy of Neuropsychology (NAN)
- University of California, San Diego
| | - Laura Lacritz
- National Academy of Neuropsychology (NAN)
- UT Southwestern Medical Center
| | | | - Cheryl Silver
- National Academy of Neuropsychology (NAN)
- UT Southwestern Medical Center
| | - Robert L Denney
- National Academy of Neuropsychology (NAN)
- Missouri Memory Center, Citizens Memorial Healthcare
| | | | | | | | - Deb Adler
- Senior Vice President Network Strategy, Optum of United Health Group
| | | | - Mark Bondi
- Society for Clinical Neuropsychology (SCN)
| | | | | | | | | | - Norman L Foster
- American Academy of Neurology (AAN)
- Center for Alzheimer's Care, Imaging and Research, Department of Neurology, University of Utah
| | - Ula Hwang
- Geriatric EM Section, American College of Emergency Physicians (ACEP)
- Department of Emergency Medicine
- Icahn School of Medicine at Mount Sinai, Geriatric Research Education, and Clinical Center, James J. Peters VAMC Geriatric EM Section
- American College of Emergency Physicians (ACEP)
| | - Laurie Ivey
- Collaborative Family Healthcare Association (CFHA)
| | - Grant Iverson
- National Academy of Neuropsychology (NAN)
- Neuropsychology Outcome Assessment Laboratory and Director, Massachusetts General Hospital for Children Sports Concussion Program, Harvard Medical School
| | - Joel Kramer
- International Neuropsychological Society (INS)
| | | | | | - Shari M Ling
- Centers for Medicare and Medicaid Services (CMS)
| | - Ana Maria Lopez
- American College of Physicians (ACP)
- Health Equity and Inclusion, University of Utah Health Sciences Center
- Cancer Health Equity, Huntsman Cancer Institute
- University of Utah School of Medicine
| | - Michael Malone
- American Geriatrics Society
- Aurora Senior Services, Aurora Health Care
| | | | | | - Don Melady
- Schwartz/Reisman Emergency Medicine Institute, Mount Sinai Hospital, University of Toronto
- Canadian Association of Emergency Physicians
- International Federation of Emergency Medicine
| | - Melissa Messer
- Research & Development, Psychological Assessment Resources, Inc. (PAR)
| | - Randi Most
- American Board of Professional Neuropsychology (ABN)
| | | | | | - Nina Silverberg
- Alzheimer's Disease Centers (ADC) Program, National Institute on Aging (NIA)
| | | | | | - Jean Tsai
- American Academy of Neurology (AAN)
- University of Colorado, Denver Health
| | | | - Martin Waters
- Clinical Innovation and Thought Leadership, Beacon Health Options
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Lantz M, Al-Adili A, Gorelov D, Jokinen A, Kolhinen V, Mattera A, Moore I, Penttilä H, Pomp S, Prokofiev A, Rakopoulos V, Rinta-Antila S, Simutkin V, Solders A. Fission yield measurements at IGISOL. EPJ Web of Conferences 2016. [DOI: 10.1051/epjconf/201612201008] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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16
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Al-Adili A, Tarrío D, Hambsch FJ, Göök A, Jansson K, Solders A, Rakopoulos V, Gustafsson C, Lantz M, Mattera A, Oberstedt S, Prokofiev A, Vidali M, Österlund M, Pomp S. Analysis of prompt fission neutrons in 235U(n th,f) and fission fragment distributions for the thermal neutron induced fission of 234U. EPJ Web of Conferences 2016. [DOI: 10.1051/epjconf/201612201007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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17
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Matheis N, Lantz M, Grus FH, Ponto KA, Wolters D, Brorson H, Planck T, Shahida B, Pitz S, Pfeiffer N, Kahaly GJ. Proteomics of Orbital Tissue in Thyroid-Associated Orbitopathy. J Clin Endocrinol Metab 2015; 100:E1523-30. [PMID: 26451909 DOI: 10.1210/jc.2015-2976] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [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] [Indexed: 01/08/2023]
Abstract
CONTEXT A potentially altered protein expression profile in orbital tissue from patients with thyroid-associated orbitopathy (TAO) is suspected. OBJECTIVE To detect for the first time changes in proteomic patterns of orbital connective tissue in TAO and compare these with control tissue using mass spectrometry. DESIGN Proteomics cross-sectional, comparative study. SETTING Two academic endocrine institutions. SAMPLES A total of 64 orbital and peripheral adipose tissue samples were collected from 39 patients with TAO and 25 control subjects. METHODS Samples were analyzed and identified using matrix-assisted laser desorption/ionization time-of-flight mass spectrometry technology. MAIN OUTCOME MEASURES Mean intensity values of all identified peptides per protein. RESULTS Thirty-one proteins were identified, of which 16 differentiated between controls and patients with TAO. Different protein patterns between orbital and peripheral adipose tissue were observed. Compared to controls, 10 proteins were markedly up-regulated (≥ 2-fold) in the orbital tissue of untreated patients: beta IV spectrin (6.2-fold), GTP binding G protein 2 (5.6-fold), POTE ankyrin domain family member F (5.4-fold), xylulokinase (4.1-fold), kinesin family member 1A and lipocalin 1 (both 3.6-fold), semicarbazide-sensitive metalloproteinase amine oxidase 3 and polymerase I transcript release factor (both 3.4-fold), cell-cycle protein elongin A binding protein 1 (3.3-fold), annexin A2 and cavin (both 3-fold), protein pointing to cell proliferation histone H4 (2.8-fold), and ADAM metallopeptidase with thrombospondin type 1 motif 14 (2.7-fold). The highest protein up-regulations were noted in the orbital tissue of medically untreated patients. Steroid therapy markedly reduced up-regulation of these proteins, foremost in nonsmokers. CONCLUSIONS Proteins involved in tissue inflammation, adipose tissue differentiation, lipid metabolism, and tissue remodeling were up-regulated in orbital tissue of untreated patients with TAO. Steroids decreased the expression of these proteins, whereas smoking attenuated such effect.
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Affiliation(s)
- N Matheis
- Molecular Thyroid Research Laboratory (N.M., G.J.K.), Department of Medicine I, Experimental Ophthalmology (N.M., F.H.G., D.W.), and Department of Ophthalmology (F.H.G., K.A.P., S.P., N.P.), Johannes Gutenberg University Medical Center (J.G.U.), Mainz 55101, Germany; Departments of Endocrinology (M.L., T.P., B.S.) and Plastic Surgery (H.B.), Lund University, 221 00 Lund, Sweden; and Skåne University Hospital, 214 28 Malmö, Sweden
| | - M Lantz
- Molecular Thyroid Research Laboratory (N.M., G.J.K.), Department of Medicine I, Experimental Ophthalmology (N.M., F.H.G., D.W.), and Department of Ophthalmology (F.H.G., K.A.P., S.P., N.P.), Johannes Gutenberg University Medical Center (J.G.U.), Mainz 55101, Germany; Departments of Endocrinology (M.L., T.P., B.S.) and Plastic Surgery (H.B.), Lund University, 221 00 Lund, Sweden; and Skåne University Hospital, 214 28 Malmö, Sweden
| | - F H Grus
- Molecular Thyroid Research Laboratory (N.M., G.J.K.), Department of Medicine I, Experimental Ophthalmology (N.M., F.H.G., D.W.), and Department of Ophthalmology (F.H.G., K.A.P., S.P., N.P.), Johannes Gutenberg University Medical Center (J.G.U.), Mainz 55101, Germany; Departments of Endocrinology (M.L., T.P., B.S.) and Plastic Surgery (H.B.), Lund University, 221 00 Lund, Sweden; and Skåne University Hospital, 214 28 Malmö, Sweden
| | - K A Ponto
- Molecular Thyroid Research Laboratory (N.M., G.J.K.), Department of Medicine I, Experimental Ophthalmology (N.M., F.H.G., D.W.), and Department of Ophthalmology (F.H.G., K.A.P., S.P., N.P.), Johannes Gutenberg University Medical Center (J.G.U.), Mainz 55101, Germany; Departments of Endocrinology (M.L., T.P., B.S.) and Plastic Surgery (H.B.), Lund University, 221 00 Lund, Sweden; and Skåne University Hospital, 214 28 Malmö, Sweden
| | - D Wolters
- Molecular Thyroid Research Laboratory (N.M., G.J.K.), Department of Medicine I, Experimental Ophthalmology (N.M., F.H.G., D.W.), and Department of Ophthalmology (F.H.G., K.A.P., S.P., N.P.), Johannes Gutenberg University Medical Center (J.G.U.), Mainz 55101, Germany; Departments of Endocrinology (M.L., T.P., B.S.) and Plastic Surgery (H.B.), Lund University, 221 00 Lund, Sweden; and Skåne University Hospital, 214 28 Malmö, Sweden
| | - H Brorson
- Molecular Thyroid Research Laboratory (N.M., G.J.K.), Department of Medicine I, Experimental Ophthalmology (N.M., F.H.G., D.W.), and Department of Ophthalmology (F.H.G., K.A.P., S.P., N.P.), Johannes Gutenberg University Medical Center (J.G.U.), Mainz 55101, Germany; Departments of Endocrinology (M.L., T.P., B.S.) and Plastic Surgery (H.B.), Lund University, 221 00 Lund, Sweden; and Skåne University Hospital, 214 28 Malmö, Sweden
| | - T Planck
- Molecular Thyroid Research Laboratory (N.M., G.J.K.), Department of Medicine I, Experimental Ophthalmology (N.M., F.H.G., D.W.), and Department of Ophthalmology (F.H.G., K.A.P., S.P., N.P.), Johannes Gutenberg University Medical Center (J.G.U.), Mainz 55101, Germany; Departments of Endocrinology (M.L., T.P., B.S.) and Plastic Surgery (H.B.), Lund University, 221 00 Lund, Sweden; and Skåne University Hospital, 214 28 Malmö, Sweden
| | - B Shahida
- Molecular Thyroid Research Laboratory (N.M., G.J.K.), Department of Medicine I, Experimental Ophthalmology (N.M., F.H.G., D.W.), and Department of Ophthalmology (F.H.G., K.A.P., S.P., N.P.), Johannes Gutenberg University Medical Center (J.G.U.), Mainz 55101, Germany; Departments of Endocrinology (M.L., T.P., B.S.) and Plastic Surgery (H.B.), Lund University, 221 00 Lund, Sweden; and Skåne University Hospital, 214 28 Malmö, Sweden
| | - S Pitz
- Molecular Thyroid Research Laboratory (N.M., G.J.K.), Department of Medicine I, Experimental Ophthalmology (N.M., F.H.G., D.W.), and Department of Ophthalmology (F.H.G., K.A.P., S.P., N.P.), Johannes Gutenberg University Medical Center (J.G.U.), Mainz 55101, Germany; Departments of Endocrinology (M.L., T.P., B.S.) and Plastic Surgery (H.B.), Lund University, 221 00 Lund, Sweden; and Skåne University Hospital, 214 28 Malmö, Sweden
| | - N Pfeiffer
- Molecular Thyroid Research Laboratory (N.M., G.J.K.), Department of Medicine I, Experimental Ophthalmology (N.M., F.H.G., D.W.), and Department of Ophthalmology (F.H.G., K.A.P., S.P., N.P.), Johannes Gutenberg University Medical Center (J.G.U.), Mainz 55101, Germany; Departments of Endocrinology (M.L., T.P., B.S.) and Plastic Surgery (H.B.), Lund University, 221 00 Lund, Sweden; and Skåne University Hospital, 214 28 Malmö, Sweden
| | - G J Kahaly
- Molecular Thyroid Research Laboratory (N.M., G.J.K.), Department of Medicine I, Experimental Ophthalmology (N.M., F.H.G., D.W.), and Department of Ophthalmology (F.H.G., K.A.P., S.P., N.P.), Johannes Gutenberg University Medical Center (J.G.U.), Mainz 55101, Germany; Departments of Endocrinology (M.L., T.P., B.S.) and Plastic Surgery (H.B.), Lund University, 221 00 Lund, Sweden; and Skåne University Hospital, 214 28 Malmö, Sweden
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Lantz M, Kostulas K, Waldenlind E, Sjöstrand C. Prevalence of migraine headache in an in-patient stroke population. Acta Neurol Scand 2015; 131:290-7. [PMID: 25346043 DOI: 10.1111/ane.12341] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/24/2014] [Indexed: 11/28/2022]
Abstract
INTRODUCTION Migraine, especially with aura, is a risk factor for ischemic stroke. In this study, we investigated descriptive data and prevalence of migraine in an in-patient stroke population. MATERIALS AND METHODS Patients with acute cerebrovascular disease (CVD) admitted to the stroke unit during a 6-month period were recruited. Prevalence of migraine was assessed using a structured questionnaire. Additional clinical data regarding risk factors for CVD were evaluated for all responding patients. RESULTS A total of 229 patients received a questionnaire and 175 answers were collected (response frequency of 76.4%). Responders matched the initial cohort regarding distribution of age, sex, and type of stroke. Thirty-six cases (20.6%) fulfilled the criteria for migraine or probable migraine according to the 2nd edition of the International Headache Classification (ICHD-2). Sixty percent of migraine patients had migraine with aura. Stroke patients with migraine were younger (P = 0.007), the presence of patent foramen ovale (PFO) was significantly increased (P = 0.008), and atrial fibrillation was less common (P = 0.048). There were no other differences between patients with and without migraine headache regarding conventional risk factors. CONCLUSIONS The prevalence of migraine in this hospital-based stroke cohort was comparable to the estimated prevalence of migraine usually described in population studies. In our study population, the prevalence of migraine with aura was higher than expected. The increased prevalence of PFO in patients with migraine headache corresponds well to previous population studies.
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Affiliation(s)
- M. Lantz
- Karolinska Institute; Department of Neurology; Karolinska University Hospital; Stockholm Sweden
| | - K. Kostulas
- Karolinska Institute; Department of Neurology; Karolinska University Hospital; Stockholm Sweden
| | - E. Waldenlind
- Karolinska Institute; Department of Neurology; Karolinska University Hospital; Stockholm Sweden
| | - C. Sjöstrand
- Karolinska Institute; Department of Neurology; Karolinska University Hospital; Stockholm Sweden
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Wamers F, Marganiec J, Aksouh F, Aksyutina Y, Álvarez-Pol H, Aumann T, Beceiro-Novo S, Boretzky K, Borge MJG, Chartier M, Chatillon A, Chulkov LV, Cortina-Gil D, Emling H, Ershova O, Fraile LM, Fynbo HOU, Galaviz D, Geissel H, Heil M, Hoffmann DHH, Johansson HT, Jonson B, Karagiannis C, Kiselev OA, Kratz JV, Kulessa R, Kurz N, Langer C, Lantz M, Le Bleis T, Lemmon R, Litvinov YA, Mahata K, Müntz C, Nilsson T, Nociforo C, Nyman G, Ott W, Panin V, Paschalis S, Perea A, Plag R, Reifarth R, Richter A, Rodriguez-Tajes C, Rossi D, Riisager K, Savran D, Schrieder G, Simon H, Stroth J, Sümmerer K, Tengblad O, Weick H, Wimmer C, Zhukov MV. First observation of the unbound nucleus 15Ne. Phys Rev Lett 2014; 112:132502. [PMID: 24745409 DOI: 10.1103/physrevlett.112.132502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2014] [Indexed: 06/03/2023]
Abstract
We report on the first observation of the unbound proton-rich nucleus 15Ne. Its ground state and first excited state were populated in two-neutron knockout reactions from a beam of 500 MeV/u 17Ne. The 15Ne ground state is found to be unbound by 2.522(66) MeV. The decay proceeds directly to 13O with simultaneous two-proton emission. No evidence for sequential decay via the energetically allowed 2- and 1- states in 14F is observed. The 15Ne ground state is shown to have a strong configuration with two protons in the (sd) shell around 13O with a 63(5)% (1s1/2)2 component.
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Affiliation(s)
- F Wamers
- Institut für Kernphysik, Technische Universität Darmstadt, D-64289 Darmstadt, Germany and GSI Helmholtzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt, Germany and ExtreMe Matter Institute EMMI and Research Division GSI, D-64291 Darmstadt, Germany and Frankfurt Institute for Advanced Studies FIAS, D-60438 Frankfurt am Main, Germany
| | - J Marganiec
- Institut für Kernphysik, Technische Universität Darmstadt, D-64289 Darmstadt, Germany and GSI Helmholtzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt, Germany and ExtreMe Matter Institute EMMI and Research Division GSI, D-64291 Darmstadt, Germany
| | - F Aksouh
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt, Germany
| | - Yu Aksyutina
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt, Germany
| | - H Álvarez-Pol
- Departamento de Física de Partículas, Universidade de Santiago de Compostela, ES-15782 Santiago de Compostela, Spain
| | - T Aumann
- Institut für Kernphysik, Technische Universität Darmstadt, D-64289 Darmstadt, Germany and GSI Helmholtzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt, Germany
| | - S Beceiro-Novo
- Departamento de Física de Partículas, Universidade de Santiago de Compostela, ES-15782 Santiago de Compostela, Spain
| | - K Boretzky
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt, Germany
| | - M J G Borge
- Instituto de Estructura de la Materia, CSIC, ES-28006 Madrid, Spain
| | - M Chartier
- Department of Physics, University of Liverpool, Liverpool L69 3BX, United Kingdom
| | - A Chatillon
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt, Germany
| | - L V Chulkov
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt, Germany and NRC Kurchatov Institute, RU-123182 Moscow, Russia
| | - D Cortina-Gil
- Departamento de Física de Partículas, Universidade de Santiago de Compostela, ES-15782 Santiago de Compostela, Spain
| | - H Emling
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt, Germany
| | - O Ershova
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt, Germany and Institut für Angewandte Physik, Goethe Universität, D-60438 Frankfurt am Main, Germany
| | - L M Fraile
- Department of Atomic, Molecular and Nuclear Physics, Universidad Complutense de Madrid, ES-28040 Madrid, Spain
| | - H O U Fynbo
- Department of Physics and Astronomy, University of Aarhus, DK-8000 Aarhus, Denmark
| | - D Galaviz
- Instituto de Estructura de la Materia, CSIC, ES-28006 Madrid, Spain
| | - H Geissel
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt, Germany
| | - M Heil
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt, Germany
| | - D H H Hoffmann
- Institut für Kernphysik, Technische Universität Darmstadt, D-64289 Darmstadt, Germany
| | - H T Johansson
- Fundamental Fysik, Chalmers Tekniska Högskola, SE-41296 Göteborg, Sweden
| | - B Jonson
- Fundamental Fysik, Chalmers Tekniska Högskola, SE-41296 Göteborg, Sweden
| | - C Karagiannis
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt, Germany
| | - O A Kiselev
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt, Germany
| | - J V Kratz
- Institut für Kernchemie Johannes Gutenberg-Universität Mainz, D-55122 Mainz, Germany
| | - R Kulessa
- Instytut Fizyki, Uniwersytet Jagelloński, PL-30-059 Krakóv, Poland
| | - N Kurz
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt, Germany
| | - C Langer
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt, Germany and Institut für Angewandte Physik, Goethe Universität, D-60438 Frankfurt am Main, Germany
| | - M Lantz
- Fundamental Fysik, Chalmers Tekniska Högskola, SE-41296 Göteborg, Sweden and Institutionen för fysik och astronomi, Uppsala Universitet, SE-75120 Uppsala, Sweden
| | - T Le Bleis
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt, Germany and Physik-Department E12, Technische Universität München, D-85748 Garching, Germany
| | - R Lemmon
- Nuclear Physics Group, STFC Daresbury Lab, Warrington WA4 4AD, Cheshire, United Kingdom
| | - Yu A Litvinov
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt, Germany
| | - K Mahata
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt, Germany and Nuclear Physics Division, Bhabha Atomic Research Centre, Trombay, Mumbai-400 085, India
| | - C Müntz
- Institut für Angewandte Physik, Goethe Universität, D-60438 Frankfurt am Main, Germany
| | - T Nilsson
- Fundamental Fysik, Chalmers Tekniska Högskola, SE-41296 Göteborg, Sweden
| | - C Nociforo
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt, Germany
| | - G Nyman
- Fundamental Fysik, Chalmers Tekniska Högskola, SE-41296 Göteborg, Sweden
| | - W Ott
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt, Germany
| | - V Panin
- Institut für Kernphysik, Technische Universität Darmstadt, D-64289 Darmstadt, Germany and GSI Helmholtzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt, Germany
| | - S Paschalis
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt, Germany and Department of Physics, University of Liverpool, Liverpool L69 3BX, United Kingdom
| | - A Perea
- Instituto de Estructura de la Materia, CSIC, ES-28006 Madrid, Spain
| | - R Plag
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt, Germany and Institut für Angewandte Physik, Goethe Universität, D-60438 Frankfurt am Main, Germany
| | - R Reifarth
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt, Germany and Institut für Angewandte Physik, Goethe Universität, D-60438 Frankfurt am Main, Germany
| | - A Richter
- Institut für Kernphysik, Technische Universität Darmstadt, D-64289 Darmstadt, Germany
| | - C Rodriguez-Tajes
- Departamento de Física de Partículas, Universidade de Santiago de Compostela, ES-15782 Santiago de Compostela, Spain
| | - D Rossi
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt, Germany and Institut für Kernchemie Johannes Gutenberg-Universität Mainz, D-55122 Mainz, Germany
| | - K Riisager
- Department of Physics and Astronomy, University of Aarhus, DK-8000 Aarhus, Denmark
| | - D Savran
- ExtreMe Matter Institute EMMI and Research Division GSI, D-64291 Darmstadt, Germany and Frankfurt Institute for Advanced Studies FIAS, D-60438 Frankfurt am Main, Germany
| | - G Schrieder
- Institut für Kernphysik, Technische Universität Darmstadt, D-64289 Darmstadt, Germany
| | - H Simon
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt, Germany
| | - J Stroth
- Institut für Angewandte Physik, Goethe Universität, D-60438 Frankfurt am Main, Germany
| | - K Sümmerer
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt, Germany
| | - O Tengblad
- Instituto de Estructura de la Materia, CSIC, ES-28006 Madrid, Spain
| | - H Weick
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt, Germany
| | - C Wimmer
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt, Germany and Institut für Angewandte Physik, Goethe Universität, D-60438 Frankfurt am Main, Germany
| | - M V Zhukov
- Fundamental Fysik, Chalmers Tekniska Högskola, SE-41296 Göteborg, Sweden
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Suzuki S, Takechi M, Ohtsubo T, Nishimura D, Fukuda M, Kuboki T, Nagashima M, Suzuki T, Yamaguchi T, Ozawa A, Ohishi H, Moriguchi T, Sumikama T, Geissel H, Aoi N, Chen RJ, Fang DQ, Fukuda N, Fukuoka S, Furuki H, Inabe N, Ishibashi Y, Ito T, Izumikawa T, Kameda D, Kubo T, Lantz M, Lee C, Ma YG, Mihara M, Momota S, Nagae D, Nishikiori R, Niwa T, Ohnishi T, Okumura K, Ogura T, Sakurai H, Sato K, Shimbara Y, Suzuki H, Takeda H, Takeuchi S, Tanaka K, Uenishi H, Winkler M, Yanagisawa Y. Measurements of interaction cross sections for 22–35Na isotopes. EPJ Web of Conferences 2014. [DOI: 10.1051/epjconf/20146603084] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Rakopoulos V, Lantz M, Andersson P, Hjalmarsson A, Mattera A, Pomp S, Solders A, Valldor-Blücher J, Gorelov D, Penttilä H, Rinta-Antila S, Bedogni R, Bortot D, Esposito A, Gentile A, Passoth E, Prokofiev A, Introini M, Pola A. Target thickness dependence of the Be(p,xn) neutron energy spectrum. EPJ Web of Conferences 2014. [DOI: 10.1051/epjconf/20146611032] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Takechi M, Suzuki S, Nishimura D, Fukuda M, Ohtsubo T, Nagashima M, Suzuki T, Yamaguchi T, Ozawa A, Moriguchi T, Ohishi H, Sumikama T, Geissel H, Ishihara M, Aoi N, Chen RJ, Fang DQ, Fukuda N, Fukuoka S, Furuki H, Inabe N, Ishibashi Y, Itoh T, Izumikawa T, Kameda D, Kubo T, Lee CS, Lantz M, Ma YG, Matsuta K, Mihara M, Momota S, Nagae D, Nishikiori R, Niwa T, Ohnishi T, Okumura K, Ogura T, Sakurai H, Sato K, Shimbara Y, Suzuki H, Takeda H, Takeuchi S, Tanaka K, Uenishi H, Winkler M, Yanagisawa Y, Watanabe S, Minomo K, Tagami S, Shimada M, Kimura M, Matsumoto T, Shimizu YR, Yahiro M. Search for halo nucleus in Mg isotopes through the measurements of reaction cross sections towards the vicinity of neutron drip line. EPJ Web of Conferences 2014. [DOI: 10.1051/epjconf/20146602101] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Lantz M, Planck T, Asman P, Hallengren B. Increased TRAb and/or low anti-TPO titers at diagnosis of graves' disease are associated with an increased risk of developing ophthalmopathy after onset. Exp Clin Endocrinol Diabetes 2014; 122:113-7. [PMID: 24554511 DOI: 10.1055/s-0033-1363193] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [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] [Indexed: 10/25/2022]
Abstract
Patients with low thyroid peroxidase antibodies (anti-TPO) and increased TSH-receptor antibodies (TRAb) at diagnosis of Graves' disease (GD) have been suggested to have an increased risk to develop Graves' ophthalmopathy (GO). The aim was to evaluate if GO development can be predicted.This is an observational study with registration of possible GD and GO risk factors.399 patients with GD were registered 2003-2008 in Malmö, Sweden and out of these 310 were retrospectively followed up to 6 years. The main outcome measures were anti-TPO titer, TRAb titer, smoking habits, radioiodine treatment and GO development.TRAb was assessed with a third generation assay at GD diagnosis in 231 patients. The proportion of patients with GO increased above the median 6.3 IU/L both at diagnosis of GD (p=0.001) and at follow-up (p=0.0001).The distribution of GO patients anti-TPO above or below 20 kIU/L at diagnosis of GD was similar between groups (p=0.239). However at follow-up anti-TPO<20 kIU/L was associated with an increased proportion of newly developed GO as compared to the cohort with anti-TPO>20 kIU/L (p=0.018).87% of patients who developed GO after GD diagnosis had TRAb above 6.3 IU/L and/or anti-TPO below 20 kIU/L. The proportion of GO was doubled in GD patients treated with radioiodine but could not explain the described findingsAnti-TPO<20 kIU/L and/or TRAb>6.3 IE/L at the time of GD diagnosis were associated with an increased risk to develop GO after diagnosis of GD.
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Affiliation(s)
- M Lantz
- Skåne University Hospital Malmö and Department of Clinical Sciences, Lund University, Sweden
| | - T Planck
- Skåne University Hospital Malmö and Department of Clinical Sciences, Lund University, Sweden
| | - P Asman
- Department of Endocrinology and Ophthalmology, Department of Clinical Sciences, Lund University, Sweden
| | - B Hallengren
- Skåne University Hospital Malmö and Department of Clinical Sciences, Lund University, Sweden
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Wamers F, Marganiec J, Aksouh F, Aksyutina Y, Álvarez-Pol H, Aumann T, Beceiro-Novo S, Bertulani C, Boretzky K, Borge M, Chartier M, Chatillon A, Chulkov L, Cortina-Gil D, Egorova I, Emling H, Ershova O, Forssén C, Fraile L, Fynbo H, Galaviz D, Geissel H, Grigorenko L, Heil M, Hoffmann D, Hoffmann J, Johansson H, Jonson B, Karagiannis C, Karakoç M, Kiselev O, Kratz J, Kulessa R, Kurz N, Langer C, Lantz M, Larsson K, Bleis TL, Lemmon R, Litvinov Y, Mahata K, Müntz C, Nilsson T, Nociforo C, Nyman G, Ott W, Panin V, Parfenova Y, Paschalis S, Perea A, Plag R, Reifarth R, Richter A, Rodriguez-Tajes C, Rossi D, Riisager K, Savran D, Schrieder G, Shul’gina N, Simon H, Stroth J, Sümmerer K, Taylor J, Tengblad O, Tengborn E, Weick H, Wimmer C, Zhukov M. Exclusive measurements of nuclear breakup reactions of 17Ne. EPJ Web of Conferences 2014. [DOI: 10.1051/epjconf/20146603094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Abstract
INTRODUCTION Migraine, especially migraine with aura, has been described to be associated with an increased risk for ischemic stroke. An increased incidence of silent lesions in the posterior circulation has also been described. METHOD Six cases with migraine and stroke in close relation over time were retrospectively reviewed. RESULTS All patients had previously known MA or MO and suffered from a stroke within the first 24-hour period after an acute migraine attack. None of the patients fulfilled the IHS criteria for migrainous infarction. Four out of these six patients had a patent foramen ovale (PFO) or an atrial septal defect (ASD). DISCUSSION None of these cases can be categorized as migrainous infarctions according to IHS. However, the migraine attack might have been involved in the mechanisms for the development of the infarctions.
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Affiliation(s)
- M. Lantz
- Department of Neurology; Karolinska Institute; Karolinska University Hospital; Stockholm; Sweden
| | - K. Kostulas
- Department of Neurology; Karolinska Institute; Karolinska University Hospital; Stockholm; Sweden
| | - C. Sjöstrand
- Department of Neurology; Karolinska Institute; Karolinska University Hospital; Stockholm; Sweden
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Roger T, Büscher J, Bastin B, Kirsebom OS, Raabe R, Alcorta M, Äystö J, Borge MJG, Carmona-Gallardo M, Cocolios TE, Cruz J, Dendooven P, Fraile LM, Fynbo HOU, Galaviz D, Gasques LR, Giri GS, Huyse M, Hyldegaard S, Jungmann K, Kruithof WL, Lantz M, Perea A, Riisager K, Saastamoinen A, Santra B, Shidling PD, Sohani M, Sørensen AJ, Tengblad O, Traykov E, van der Hoek DJ, Van Duppen P, Versolato OO, Wilschut HW. Precise determination of the unperturbed 8B neutrino spectrum. Phys Rev Lett 2012; 108:162502. [PMID: 22680713 DOI: 10.1103/physrevlett.108.162502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2011] [Indexed: 06/01/2023]
Abstract
A measurement of the final state distribution of the (8)B β decay, obtained by implanting a (8)B beam in a double-sided silicon strip detector, is reported here. The present spectrum is consistent with a recent independent precise measurement performed by our collaboration at the IGISOL facility, Jyväskylä [O. S. Kirsebom et al., Phys. Rev. C 83, 065802 (2011)]. It shows discrepancies with previously measured spectra, leading to differences in the derived neutrino spectrum. Thanks to a low detection threshold, the neutrino spectrum is for the first time directly extracted from the measured final state distribution, thus avoiding the uncertainties related to the extrapolation of R-matrix fits. Combined with the IGISOL data, this leads to an improvement of the overall errors and the extension of the neutrino spectrum at high energy. The new unperturbed neutrino spectrum represents a benchmark for future measurements of the solar neutrino flux as a function of energy.
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Affiliation(s)
- T Roger
- Instituut voor Kern- en Stralingsfysica, KU Leuven, Belgium
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27
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Svensson J, Oderup C, Akesson C, Uvebrant K, Hallengren B, Ericsson UB, Arvastsson J, Danska JS, Lantz M, Cilio CM. Maternal autoimmune thyroid disease and the fetal immune system. Exp Clin Endocrinol Diabetes 2011; 119:445-50. [PMID: 21667438 DOI: 10.1055/s-0031-1279741] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [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] [Indexed: 10/18/2022]
Abstract
OBJECTIVE Several studies indicate that in utero exposure to maternal autoimmune diseases and transplacental passage of autoantibodies affect the risk of autoimmunity in the offspring, e. g., maternally derived GAD65 autoantibody correlates with decreased risk of type 1 diabetes, whereas thyroid peroxidase autoantibody (TPOAb) positivity at birth is associated with increased incidence of autoimmune thyroid disease later in life. The aim of this study was to identify immunological changes in children born to mothers with thyroid autoimmunity that may be related to in utero exposure to autoantibodies. DESIGN AND METHOD Open label prospective analysis of cord blood lymphocytes and serum cytokines by Flow Cytometry in children born to mothers with autoimmune thyroiditis (AIT) (n=31) and to healthy mothers (n=76) and titers of thyroid autoantibodies were determined in cord blood and in maternal peripheral blood at delivery. RESULTS We found an increase (almost 30%) in the frequency of cord blood natural killer (NK) cells (p=0.0016) and a minor increase in the subset of T cells expressing NK markers (p=0.028), in children born to AIT mothers. There were no detectable differences in the phenotype or frequency of cord blood memory/activated T cells, including CD4 (+)CD25 (+) T cells, between the 2 groups. The levels of pro-inflammatory cytokines TNF-α, IL-10, IL-12p70, IFN-γ and IL-1β were significantly decreased in offspring of AIT mothers as compared to healthy controls. CONCLUSIONS Maternal thyroid autoimmunity and transplacental passage of autoantibodies against thyroid antigens may affect the generation or expansion of cells with NK activity and the secretion of inflammatory cytokines.
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Affiliation(s)
- J Svensson
- Cellular Autoimmunity Unit, Department of Clinical Sciences, Lund University, Malmö University Hospital, Sweden
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28
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Abstract
A 90-year-old woman who had received more than 100 electroconvulsive treatments (ECT) over many years requested another course for depression. After the third ECT, an electrocardiogram showed new T-wave inversion (V2-V6) and ST elevation (V2). Catheterization revealed severe left ventricular dysfunction but no coronary obstruction, leading to a diagnosis of Takotsubo cardiomyopathy (stress-related). The patient's recovery was uneventful. Recent literature cites three other cases post-ECT. It appears that elderly women are at greatest risk, repeated stress is generally required, and recovery is achieved quickly. Elevated levels of catecholamines and of vasopressin may be implicated.
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Affiliation(s)
- Michael J Serby
- Beth Israel Medical Center, Department of Psychiatry, Albert Einstein College of Medicine, New York, NY 10003, USA.
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29
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Doornenbal P, Scheit H, Aoi N, Takeuchi S, Li K, Takeshita E, Wang H, Baba H, Deguchi S, Fukuda N, Geissel H, Gernhäuser R, Gibelin J, Hachiuma I, Hara Y, Hinke C, Inabe N, Itahashi K, Itoh S, Kameda D, Kanno S, Kawada Y, Kobayashi N, Kondo Y, Krücken R, Kubo T, Kuboki T, Kusaka K, Lantz M, Michimasa S, Motobayashi T, Nakamura T, Nakao T, Namihira K, Nishimura S, Ohnishi T, Ohtake M, Orr NA, Otsu H, Ozeki K, Satou Y, Shimoura S, Sumikama T, Takechi M, Takeda H, Tanaka KN, Tanaka K, Togano Y, Winkler M, Yanagisawa Y, Yoneda K, Yoshida A, Yoshida K, Sakurai H. Spectroscopy of 32Ne and the "Island of Inversion". Phys Rev Lett 2009; 103:032501. [PMID: 19659270 DOI: 10.1103/physrevlett.103.032501] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2009] [Indexed: 05/28/2023]
Abstract
We report on the first spectroscopic study of the N=22 nucleus 32Ne at the newly completed RIKEN Radioactive Ion Beam Factory. A single gamma-ray line with an energy of 722(9) keV was observed in both inelastic scattering of a 226 MeV/u 32Ne beam on a carbon target and proton removal from 33Na at 245 MeV/u. This transition is assigned to the deexcitation of the first Jpi=2+ state in 32Ne to the 0+ ground state. Interpreted through comparison with state-of-the-art shell-model calculations, the low excitation energy demonstrates that the "island of inversion" extends to at least N=22 for the Ne isotopes.
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Affiliation(s)
- P Doornenbal
- RIKEN Nishina Center, Wako, Saitama 351-0198, Japan
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30
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Kanungo R, Nociforo C, Prochazka A, Aumann T, Boutin D, Cortina-Gil D, Davids B, Diakaki M, Farinon F, Geissel H, Gernhäuser R, Gerl J, Janik R, Jonson B, Kindler B, Knöbel R, Krücken R, Lantz M, Lenske H, Litvinov Y, Lommel B, Mahata K, Maierbeck P, Musumarra A, Nilsson T, Otsuka T, Perro C, Scheidenberger C, Sitar B, Strmen P, Sun B, Szarka I, Tanihata I, Utsuno Y, Weick H, Winkler M. One-neutron removal measurement reveals 24O as a new doubly magic nucleus. Phys Rev Lett 2009; 102:152501. [PMID: 19518623 DOI: 10.1103/physrevlett.102.152501] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2008] [Indexed: 05/27/2023]
Abstract
The first measurement of the momentum distribution for one-neutron removal from (24)O at 920A MeV performed at GSI, Darmstadt is reported. The observed distribution has a width (FWHM) of 99 +/- 4 MeV/c in the projectile rest frame and a one-neutron removal cross section of 63 +/- 7 mb. The results are well explained with a nearly pure 2s_{1/2} neutron spectroscopic factor of 1.74 +/- 0.19 within the eikonal model. This large s-wave probability shows a spherical shell closure thereby confirming earlier suggestions that (24)O is a new doubly magic nucleus.
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Affiliation(s)
- R Kanungo
- Astronomy and Physics Department, Saint Mary's University, Halifax, NS B3H 3C3, Canada.
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31
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Mahgoub NA, Saifollahi J, Lantz M. Late-life anxiety. J Neuropsychiatry Clin Neurosci 2008; 20:116-7. [PMID: 18305303 DOI: 10.1176/jnp.2008.20.1.116a] [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: 11/30/2022]
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32
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Serby M, Brickman AM, Haroutunian V, Purohit DP, Marin D, Lantz M, Mohs RC, Davis KL. Cognitive burden and excess Lewy-body pathology in the Lewy-body variant of Alzheimer disease. Am J Geriatr Psychiatry 2003; 11:371-4. [PMID: 12724118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/01/2023]
Abstract
OBJECTIVES Authors compared the degrees of cognitive deficit among individuals with Alzheimer disease (AD), the Lewy-body variant of AD (LBV), and "pure" dementia with Lewy bodies (DLB); and compared cortical Lewy body (LB) counts in LBV versus DLB and neuritic plaque and neurofibrillary tangle severity in LBV versus AD. METHODS Authors examined brain specimens from consecutive autopsies of elderly nursing home subjects. Numbers and densities of plaques, Lewy bodies, and tangle severity were determined in multiple cortical regions, and demographic and clinical variables were compared among the three groups. RESULTS The three groups did not differ in demographic or clinical variables. The LBV group was significantly more impaired than the other groups. Cortical LB counts were significantly higher in LBV than in DLB. There was no evidence of increased plaque or tangle severity in LBV than in AD. CONCLUSION The co-occurrence of AD and LB pathology is associated with higher numbers of LBs and more severe dementia than when classical AD or LB lesions occur alone.
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Affiliation(s)
- Michael Serby
- Departments of Psychiatry and Psychology, Mount Sinai School of Medicine, New York, NY, USA
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33
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Evers MM, Samuels SC, Lantz M, Khan K, Brickman AM, Marin DB. The prevalence, diagnosis and treatment of depression in dementia patients in chronic care facilities in the last six months of life. Int J Geriatr Psychiatry 2002; 17:464-72. [PMID: 11994936 DOI: 10.1002/gps.634] [Citation(s) in RCA: 40] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
OBJECTIVE To assess the prevalence, diagnosis and treatment of depression among dementia patients and normal controls in chronic care facilities in the last six months of life. METHOD We reviewed perimortal data concerning dementia severity, depressive symptoms and diagnoses, and medication use for 279 dementia patients and 24 normal controls brought to autopsy through an Alzheimer's Disease Resource Center. RESULTS Major depression was highly prevalent among both dementia patients and normal controls in chronic care facilities in the last six months of life. This depression was under-diagnosed by physicians. Documentation of depressive symptoms by medical support staff has improved over time. However, physician diagnosis of depression has not improved. Recognition of depression was significantly lower for patients with severe dementia. Depression was under-treated in both dementia patients and normal controls, although treatment rates may be increasing. Anxiolytics and hypnotics were often used in lieu of, or in addition to, antidepressant therapy. CONCLUSIONS Major depression was highly prevalent in both dementia patients and normal controls, indicating that depression is an important issue for the elderly in the last six months of life irrespective of cognitive status. Under-diagnosis of depression may be an important clinical issue. As physician diagnosis of depression has not improved with time, further physician training and/or awareness initiatives may be warranted. Depression, a treatable cause of excess morbidity and mortality, was undertreated in all groups studied. However, treatment rates may be improving. The prevalent use of anxiolytics and hypnotics for depressed patients is problematic.
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Affiliation(s)
- Martin M Evers
- Department of Psychiatry, Mount Sinai School of Medicine, New York, NY 10029, USA
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34
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Marin DB, Flynn S, Mare M, Lantz M, Hsu MA, Laurans M, Paredes M, Shreve T, Zaklad GR, Mohs RC. Reliability and validity of a chronic care facility adaptation of the Clinical Dementia Rating scale. Int J Geriatr Psychiatry 2001; 16:745-50. [PMID: 11536340 DOI: 10.1002/gps.385] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
OBJECTIVE This study investigated the reliability and validity of a chronic care facility adaptation of the Clinical Dementia Rating scale (CDR-CC). METHOD Sixty-two residents in a chronic care facility participated in an inter-rater and 1 month test-retest reliability study. The instrument was validated against the Mini-Mental State Examination (MMSE). RESULTS Inter-rater and 1 month test-retest reliability for the global CDR-CC score were excellent (intraclass correlation coefficients 0.99 and 0.92, respectively). The CDR-CC domain and global scores were negatively correlated with the MMSE. CONCLUSIONS The CDR-CC is a global assessment tool that reliably and validly measures cognitive and functional impairment in a chronic care setting.
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Affiliation(s)
- D B Marin
- Department of Psychiatry, Mount Sinai School of Medicine, New York, NY 10029, USA.
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35
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Driggers RW, Bernstein H, Lantz M, Stetten G, Escallon CS, Perlman E, Blakemore KJ. Non-mosaic trisomy 20 presenting at 21 weeks' gestation as a thoraco-abdominal mass. Prenat Diagn 2001; 21:387-9. [PMID: 11360280 DOI: 10.1002/pd.65] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Non-mosaic trisomy 20 is rare in fetuses surviving beyond the first trimester. We report a case of a fetus with non-mosaic trisomy 20 in amniotic fluid cultures obtained during the prenatal evaluation of an unusual thoraco-abdominal mass which was found at autopsy to be pulmonary sequestration. Gross inspection and autopsy of the fetus revealed multiple anomalies.
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Affiliation(s)
- R W Driggers
- Johns Hopkins University School of Medicine, Baltimore, MD, USA.
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36
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Baker-Malcolm JF, Lantz M, Anderson VE, Thorpe C. Novel inactivation of enoyl-CoA hydratase via beta-elimination of 5, 6-dichloro-7,7,7-trifluoro-4-thia-5-heptenoyl-CoA. Biochemistry 2000; 39:12007-18. [PMID: 11009615 DOI: 10.1021/bi0010165] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [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: 11/30/2022]
Abstract
5,6-Dichloro-7,7,7-trifluoro-4-thia-5-heptenoyl-CoA (DCTFTH-CoA) is an analogue of a class of cytotoxic 4-thiaacyl-CoA thioesters that can undergo a beta-elimination reaction to form highly unstable thiolate fragments, which yield electrophilic thioketene or thionoacyl halide species. Previous work demonstrated that the medium-chain acyl-CoA dehydrogenase both bioactivates and is inhibited by these CoA thioesters through enzyme-catalyzed beta-elimination of the reactive thiolate moiety [Baker-Malcolm, J. F., Haeffner-Gormley, L., Wang, L., Anders, M. W., and Thorpe, C. (1998) Biochemistry 37, 1383-1393]. This paper shows that DCTFTH-CoA can be directly bioactivated by the enoyl-CoA hydratase (ECH) with the release of 1,2-dichloro-3,3,3-trifluoro-1-propenethiolate and acryloyl-CoA. In the absence of competing exogenous trapping agents, DCTFTH-CoA effects rapid and irreversible loss of hydratase activity. The inactivator is particularly effective at pH 9.0, with a stoichiometry approaching 1 mol of DCTFTH-CoA per enzyme subunit. Modification is associated with a new protein-bound chromophore at 360 nm and an increase in mass of 89 +/- 5 per subunit. Surprisingly, ECH exhibiting less than 2% residual hydratase activity retains essentially 100% beta-eliminase activity and continues to generate reactive thiolate species from DCTFTH-CoA. This leads to progressive derivatization of the enzyme with additional UV absorbance, covalent cross-linking of subunits, and an eventual complete loss of beta-eliminase activity. A range of exogenous trapping agents, including small thiol nucleophiles, various proteins, and even phospholipid bilayers, exert strong protection against modification of ECH. Peptide mapping, thiol titrations, UV-vis spectrophotometry, and mass spectrometry show that inactivation involves the covalent modification of Cys62 and/or Cys111 of the recombinant rat liver ECH. These data suggest that enoyl-CoA hydratase is an important enzyme in the bioactivation of DCTFTH-CoA, in a pathway which does not require involvement of the medium-chain acyl-CoA dehydrogenase.
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Affiliation(s)
- J F Baker-Malcolm
- Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716, USA
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37
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Haroutunian V, Serby M, Purohit DP, Perl DP, Marin D, Lantz M, Mohs RC, Davis KL. Contribution of Lewy body inclusions to dementia in patients with and without Alzheimer disease neuropathological conditions. Arch Neurol 2000; 57:1145-50. [PMID: 10927794 DOI: 10.1001/archneur.57.8.1145] [Citation(s) in RCA: 45] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
CONTEXT Lewy bodies (LBs) are intraneuronal inclusions in the brain that have been increasingly recognized as neuropathological lesions with relevance not only to Parkinson disease but also to Alzheimer disease. However, the degree to which the density of LBs in the brain contributes to the severity of dementia has not been clear. OBJECTIVE To determine the degree to which LB "burden" contributes to dementia. DESIGN Brain specimens were examined from 273 consecutive autopsies of elderly subjects residing in a nursing home. The numbers and densities of LBs were determined in multiple brain regions, and their correlation with a measure of cognition and functional status (Clinical Dementia Rating) during the 6 months preceding death was determined. SETTING AND PATIENTS Postmortem study of nursing home residents. RESULTS The severity of dementia correlated significantly and positively with the density of LBs. These correlations were independent of other neuropathological disorders commonly associated with dementia, including Alzheimer disease. The density of LBs correlated significantly with dementia severity whether or not the diagnostic criteria for Alzheimer disease were met and after the contribution of classical Alzheimer disease lesions, neuritic plaques, and neurofibrillary tangles had been accounted for by partial correlation analysis. CONCLUSION Lewy body inclusions appear to contribute significantly to cognitive deficits in the elderly in a manner that is independent of other neuropathological disorders. Arch Neurol. 2000;57:1145-1150
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Affiliation(s)
- V Haroutunian
- Psychiatry Research, Room 3F-02, Bronx VA Medical Center, 130 W Kingsbridge Rd, Bronx, NY 10468, USA.
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38
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Abstract
Studies of the familial aggregation of Alzheimer's disease have primarily used samples ascertained from tertiary care clinics which may not be representative of many AD patients, for example those residing at geriatric nursing homes. Survival analysis was used to investigate whether estimates of familial aggregation of AD based on a clinic-based AD proband (C-AD) sample (probands: N=544; first degree relatives; N=4267) differ from one ascertained at a nursing home (NH-AD; probands: N=225; first degree relatives; N=1772). The cumulative survival from AD was significantly worse in relatives of the C-AD probands and the overall relative risk (RR) of AD in this group was greater than twice that of relatives of the NH-AD probands. However, age at onset in C-AD probands was significantly earlier than in the NH-AD group and in both groups this factor was negatively associated with familial aggregation. When, for this reason, the proband samples were matched one-to-one by age at onset, dropping those probands with no match, the two curves were close to identical and the RR for the C-AD group of relatives was 1.0 The results suggest that estimates of familial risk of AD based on C-AD samples are not applicable and overestimate the extent of increased risk for relatives of more prevalent, later onset AD probands. However, the overestimate can be explained by the typically earlier age at onset in C-AD samples as opposed to a sampling bias related to the proband's family history status per se. The relationship between onset age and familial aggregation suggests that no single estimate of the age-dependent risk (survival curve) is uniformly appropriate for relatives of AD probands.
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Affiliation(s)
- J M Silverman
- Department of Psychiatry, Mt. Sinai School of Medicine, New York, NY 10029, USA.
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39
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Davis KL, Mohs RC, Marin DB, Purohit DP, Perl DP, Lantz M, Austin G, Haroutunian V. Neuropeptide abnormalities in patients with early Alzheimer disease. Arch Gen Psychiatry 1999; 56:981-7. [PMID: 10565496 DOI: 10.1001/archpsyc.56.11.981] [Citation(s) in RCA: 58] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
BACKGROUND Deficits in somatostatin-like immunoreactivity (SLI) and corticotropin-releasing factor immunoreactivity (CRF-IR) are well recognized as prominent neurochemical deficits in Alzheimer disease (AD). The question of whether these profound neuropeptidergic deficits found in patients with end-stage disease extend into those with much earlier disease is relatively unanswered. To determine the relation between level of SLI and CRF-IR in different cerebrocortical regions to the earliest signs of cognitive deterioration in AD. METHODS We examined SLI and CRF-IR levels in 9 neocortical brain regions of 66 elderly patients in a postmortem study of nursing home residents who had either no significant neuropathologic lesions or lesions associated only with AD. Patients were assessed by the Clinical Dementia Rating scale (CDR) to have no dementia or questionable, mild, or moderate dementia, and were compared with 15 patients with severe dementia. RESULTS Both CRF-IR and SLI were significantly reduced in the cortices of patients with the most severe dementia, but only the levels of CRF-IR were reduced in those with mild (CDR = 1.0) and moderate dementia (CDR = 2.0). Levels of CRF-IR and SLI correlated significantly with CDR, but this correlation was more robust for CRF-IR and persisted even when severely cognitively impaired patients were eliminated from analysis. CONCLUSIONS Although SLI and CRF-IR levels are significantly reduced in patients with severe dementia, only CRF-IR is reduced significantly in the cortices of those with mild dementia. Thus, CRF-IR can serve as a potential neurochemical marker of early dementia and possibly early AD.
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Affiliation(s)
- K L Davis
- Department of Psychiatry, Mount Sinai School of Medicine, and Jewish Home and Hospital, New York, NY 10029, USA.
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40
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Curtis MA, Kuramitsu HK, Lantz M, Macrina FL, Nakayama K, Potempa J, Reynolds EC, Aduse-Opoku J. Molecular genetics and nomenclature of proteases of Porphyromonas gingivalis. J Periodontal Res 1999; 34:464-72. [PMID: 10697803 DOI: 10.1111/j.1600-0765.1999.tb02282.x] [Citation(s) in RCA: 168] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The strategies used by bacterial pathogens to establish and maintain themselves in the host represent one of the fundamental aspects of microbial pathogenesis. Characterization of these strategies and the underlying molecular machinery offers new opportunities both to our understanding of how organisms cause disease in susceptible individuals and to the development of novel therapeutic measures designed to undermine or interfere with these determinants of successful survival. With respect to the microbial aetiology of the periodontal diseases, a growing body of evidence suggests that the proteolytic enzymes of Porphyromonas gingivalis represent key survival and, by extrapolation, virulence determinants of this periodontal bacterium. This in turn has led to international efforts to characterize these enzymes at the gene and protein level. Approximately 20 protease genes of P. gingivalis with different names and accession numbers have been deposited in the gene databases and a correspondingly heterogeneous nomenclature system is employed for the products of these genes in the literature. However, it is evident, through comparison of these gene sequences and through gene inactivation studies, that the genetic structure of the proteases of this organism, particularly those with specificity for arginyl and lysyl peptide bonds, is less complicated than originally thought. The major extracellular and surface associated arginine specific protease activity is encoded by 2 genes which we recommend be designated rgpA and rgpB (arg-gingipains A & B). Similarly we recommend that the gene encoding the major lysine specific protease activity is designated kgp (lys-gingipain). These three genes, which account for all the extracellular/surface arginine and lysine protease activity in P. gingivalis, belong to a family of sequence-related proteases and haemagglutinins.
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Affiliation(s)
- M A Curtis
- Department of Oral Microbiology, St Bartholomew's and the Royal London School of Medicine and Dentistry, UK.
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Haroutunian V, Purohit DP, Perl DP, Marin D, Khan K, Lantz M, Davis KL, Mohs RC. Neurofibrillary tangles in nondemented elderly subjects and mild Alzheimer disease. Arch Neurol 1999; 56:713-8. [PMID: 10369312 DOI: 10.1001/archneur.56.6.713] [Citation(s) in RCA: 143] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
BACKGROUND The relationship between neuropathological lesions and mild, "preclinical," cognitive impairments of Alzheimer disease is poorly understood. Identification of the lesions that are most closely associated with the earliest symptoms of Alzheimer disease is crucial to the understanding of the disease process and the development of treatment strategies to affect its progression. DESIGN AND MAIN OUTCOME MEASURES We examined the extent of neurofibrillary tangles (NFTs) in 4 neocortical regions, the hippocampus, the entorhinal cortex, and the amygdala in 65 elderly subjects with no dementia, questionable dementia, mild dementia, or moderate dementia as assessed using the Clinical Dementia Rating Scale (CDR). SETTING AND PATIENTS Postmortem study of nursing home residents. RESULTS Neurofibrillary tangles were present in the entorhinal cortex and the hippocampus of all subjects, including those without cognitive deficits. Neocortical NFTs were mostly absent in the nondemented (CDR score, 0.0) subjects. The density of NFTs in the questionably demented (CDR score, 0.5) subjects was not significantly increased (P>.20) relative to the nondemented group in any of the brain regions studied. Significant increases (P<.04) in NFT density become apparent first in the amygdala and the temporal cortex in subjects rated to be mildly impaired (CDR score, 1.0). By the time that cognitive impairments were judged to be moderately severe (CDR score, 2.0), all regions of the brain examined, except for the occipital cortex, were significantly (P<.05) involved. CONCLUSIONS Some NFTs are present in the entorhinal cortex and hippocampus of most elderly individuals irrespective of their cognitive status, but the density of NFTs increases as a function of dementia severity.
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Affiliation(s)
- V Haroutunian
- Department of Psychiatry, The Mount Sinai School of Medicine, New York, NY, USA.
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Abstract
CONTEXT A central tenet of Alzheimer disease (AD) is the loss of cortical cholinergic function and cholinergic markers in postmortem brain specimens. Whether these profound deficits in cholinergic markers found in end-stage patients are also found in patients with much earlier disease is not known. OBJECTIVE To determine whether cholinergic deficits in AD precede, follow, or occur in synchrony with the earliest signs of cognitive deterioration. DESIGN, SETTING, AND PATIENTS Postmortem study of nursing home residents with Clinical Dementia Rating (CDR) Scale scores of 0.0 to 2.0 and 4.0 to 5.0 who underwent autopsy between 1986 and 1997, comparing the activity of the cholinergic marker enzymes in the cortices of 66 elderly subjects with no (CDR score = 0.0; n = 18), questionable (CDR score = 0.5; n = 11), mild (CDR score = 1.0; n = 22), or moderate (CDR score = 2.0; n = 15) dementia vs subjects with severe dementia (CDR score = 4.0-5.0; n = 15). MAIN OUTCOME MEASURES Activity of the cholinergic marker enzymes choline acetyltransferase and acetylcholinesterase in 9 neocortical brain regions. RESULTS The activity of choline acetyltransferase and acetylcholinesterase in 9 neocortical brain regions did not differ significantly in subjects with CDR scores of 0.0 to 2.0, but was significantly lower in subjects with severe dementia (CDR score = 4.0-5.0). Choline acetyltransferase levels were significantly correlated with severity of neuropathological lesions of AD, as measured by density of neuritic plaques and neurofibrillary tangles. CONCLUSIONS Although neocortical cholinergic deficits are characteristic of severely demented AD patients, in this study, cholinergic deficits were not apparent in individuals with mild AD and were not present until relatively late in the course of the disease. These results suggest that patients with more severe disease should be a target for cholinergic treatment.
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Affiliation(s)
- K L Davis
- Department of Psychiatry, Mount Sinai School of Medicine, New York, NY 10029-6574, USA
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Marin DB, Breuer B, Marin ML, Silverman J, Schmeidler J, Greenberg D, Flynn S, Mare M, Lantz M, Libow L, Neufeld R, Altstiel L, Davis KL, Mohs RC. The relationship between apolipoprotein E, dementia, and vascular illness. Atherosclerosis 1998; 140:173-80. [PMID: 9733229 DOI: 10.1016/s0021-9150(98)00105-1] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The purpose of this study was to concurrently assess the relationship of Apolipoprotein E (APOE) with both dementias and vascular illnesses in the very old. Nine hundred and fifty nine subjects (mean age 85 years) in a long-term care facility were genotyped and cognitively tested with the Mini Mental State Exam. All subjects were studied for the relationship of APOE with atherosclerotic heart disease, hypertension, or stroke without concomitant dementia. Four hundred fifty individuals met criteria for inclusion into one of the following groups: Alzheimer's disease (n = 318), vascular dementia (n = 49), or not demented controls (n = 83) and were investigated for the relationship between APOE and these diagnostic categories. APOE epsilon4 was not associated with atherosclerotic heart disease, hypertension, or stroke without concomitant dementia. The APOE epsilon3 allele was more common in men with atherosclerotic heart disease. In contrast, the APOE epsilon4 allele was more common in patients with Alzheimer's disease (22%) and vascular dementia (26%) than in not demented controls (7%). APOE epsilon4 is associated with dementias in the very old, whereas its relationship with either peripheral or central nervous system vascular disease without dementia is not as robust.
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Affiliation(s)
- D B Marin
- Department of Psychiatry, Mount Sinai School of Medicine, New York, NY 10029, USA.
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Haroutunian V, Perl DP, Purohit DP, Marin D, Khan K, Lantz M, Davis KL, Mohs RC. Regional distribution of neuritic plaques in the nondemented elderly and subjects with very mild Alzheimer disease. Arch Neurol 1998; 55:1185-91. [PMID: 9740112 DOI: 10.1001/archneur.55.9.1185] [Citation(s) in RCA: 201] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
BACKGROUND Identification of the neuropathological lesions that are most closely associated with the earliest symptoms of Alzheimer disease (AD) is crucial to the understanding of the disease process and the development of treatment strategies to affect its progress. Do the classical neuropathological lesions of AD precede, follow, or occur in synchrony with the earliest signs of cognitive deterioration? DESIGN AND OUTCOME MEASURES We examined the extent of neuritic plaque (NP) formation in 5 neocortical regions and the hippocampus, entorhinal cortex, and amygdala in 66 elderly subjects with no dementia, questionable dementia, or mild dementia as assessed using the Clinical Dementia Rating Scale (CDR). SETTING AND PATIENTS Postmortem study of nursing home residents. RESULTS Even questionable dementia (CDR, 0.5) was associated with a significant (P = .04) increase in neocortical NP density. The density of NPs increased further with increasing dementia severity in all brain regions examined. However, subjects with questionable dementia or definite but mild dementia did not differ significantly from each other. Density of NPs was nearly maximal in subjects with moderate dementia (CDR = 2.0), suggesting that other neuropathological changes may be responsible for cognitive deficits beyond this level. Dementia severity correlated significantly with the density of NPs in all brain regions examined (r range, 0.47-0.56; P < .001), even when subjects with a CDR of 0 were excluded. CONCLUSIONS These findings are consistent with the hypothesis that NPs are among the earliest neuropathological lesions in AD. Even very mild or questionable dementia is associated with increased density of neocortical NPs that do not distinguish between clinically questionable vs definite dementia.
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Affiliation(s)
- V Haroutunian
- Department of Psychiatry, The Mount Sinai School of Medicine, New York, NY, USA.
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Gabriel SM, Marin DB, Aisen PS, Lantz M, Altstiel LD, Davis KL, Mohs RC. Association of elevated alpha 1-antichymotrypsin with cognitive impairment in a prospective study of the very old. Am J Psychiatry 1998; 155:698-700. [PMID: 9585727 DOI: 10.1176/ajp.155.5.698] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
OBJECTIVE The authors investigated the relationships between concentrations of two acute-phase proteins, alpha 1-antichymotrypsin (ACT) and alpha 2-macroglobulin (MAC), and cognitive impairment in the very old. METHOD Concentrations of ACT and MAC were determined in a prospective study using sera from medically stable elderly nursing home residents. Cognitive impairment was assessed with the Mini-Mental State. RESULTS Concentrations of ACT were associated with greater cognitive impairment, as reflected by lower Mini-Mental State scores. This relationship did not exist for MAC. CONCLUSIONS These data extend previous reports that patients with Alzheimer's disease have greater concentrations of ACT in their blood by demonstrating in a diagnostically diverse nursing home population a relationship between serum ACT and mental status. Elevated serum ACT in patients with compromised mental status may reflect a cerebral acute-phase response.
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Affiliation(s)
- S M Gabriel
- Department of Psychiatry, Mount Sinai School of Medicine, Bronx, N.Y., USA
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Björnberg F, Lantz M. Adherence to endothelial cells induces release of soluble tumor necrosis factor (TNF) receptor forms from neutrophil granulocytes. Biochem Biophys Res Commun 1998; 244:594-8. [PMID: 9514954 DOI: 10.1006/bbrc.1998.8302] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The TNF receptors, TNF-R55 and TNF-R75, may undergo proteolytic cleavage and form soluble receptor forms, TNF-R55-BP and TNF-R75-BP. Neutrophils are abundant with both forms of TNF-receptors, while endothelial cells (ECV 304) only express TNF-R55. Human neutrophils were allowed to interact with an unstimulated or a IL-1 beta stimulated endothelium followed by determination of TNF-R75-BP with ELISA. Neutrophils in suspension or in contact with an unstimulated endothelium released only low amounts of TNF-R75-BP. However, neutrophils released significant amounts of TNF-R75-BP after adherence to an endothelium stimulated with IL-1 beta. Neutrophils were not generally activated during adherence since concomitant release of lactoferrin from neutrophils only reached levels of 1-5% compared with incubation with phorbolesters. Blocking integrins with antibodies to CD11/CD18 resulted in inhibition of both neutrophil adherence to an endothelium and shedding of TNF-R75. In addition, TNF-R55-BP decreased the production of TNF from IL-1 beta stimulated endothelial cells, suggesting that soluble TNF receptor forms are able to inhibit TNF production.
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MESH Headings
- Antigens, CD/chemistry
- Antigens, CD/metabolism
- CD11 Antigens/metabolism
- CD18 Antigens/metabolism
- Carrier Proteins/chemistry
- Carrier Proteins/metabolism
- Carrier Proteins/pharmacology
- Cell Adhesion
- Cell Degranulation/drug effects
- Cell Line
- Endothelium, Vascular/cytology
- Endothelium, Vascular/drug effects
- Endothelium, Vascular/immunology
- Humans
- In Vitro Techniques
- Interleukin-1/pharmacology
- Neutrophils/cytology
- Neutrophils/drug effects
- Neutrophils/immunology
- Receptors, Tumor Necrosis Factor/chemistry
- Receptors, Tumor Necrosis Factor/metabolism
- Receptors, Tumor Necrosis Factor, Type I
- Receptors, Tumor Necrosis Factor, Type II
- Recombinant Proteins/pharmacology
- Solubility
- Tumor Necrosis Factor Decoy Receptors
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Affiliation(s)
- F Björnberg
- Department of Hematology, University of Lund, Sweden
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Björnberg F, Lantz M. Endothelial cell contact potentiates release of soluble tumor necrosis factor (TNF) receptors from the monocyte-like cell line THP-1. J Interferon Cytokine Res 1998; 18:167-74. [PMID: 9555978 DOI: 10.1089/jir.1998.18.167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
The two tumor necrosis factor (TNF) receptors can undergo proteolytic cleavage to form soluble receptors, TNF-R55-BP and TNF-R75-BP, that can neutralize TNF. The aim was to study the release of soluble TNF receptor forms during monocyte-endothelial cell interaction. Monocytic THP-1 cells were used, and their release of TNF-R75-BP was determined. Contact between THP-1 cells and confluent endothelial cells induced fourfold higher release of TNF-R75-BP from the THP-1 cells than with these cells in suspension. The release was further increased up to eightfold after prestimulation of the endothelial cells with interleukin-1beta (IL-1beta). Prestimulation for 10 min gave maximal release of TNF-R75-BP from the attached THP-1 cells. IL-1beta by itself did not induce shedding of soluble TNF receptors in THP-1 cells. Blocking antibodies against the endothelial cell adhesion molecules VCAM, ICAM, and E-selectin did not affect the release of TNF-R75-BP from THP-1 cells attached to the endothelium. Conditioned medium from IL-1beta-stimulated endothelial cells increased the production of TNF-R75-BP from THP-1 cells in suspension. However, surface contact between endothelial cells and THP-1 cells was necessary for maximal production of TNF-R75-BP. TNF-alpha released from endothelial cells on IL-1beta stimulation did not promote shedding of TNF-R75 from THP-1 cells. Thus, endothelial cell contact potentiates the production of TNF-R75-BP in a monocyte-like cell line. The shedding of soluble TNF receptors observed in this case seems to be a result of both cell attachment and soluble factors.
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Affiliation(s)
- F Björnberg
- Department of Hematology, University of Lund, Sweden.
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Li G, Aryan M, Silverman JM, Haroutunian V, Perl DP, Birstein S, Lantz M, Marin DB, Mohs RC, Davis KL. The validity of the family history method for identifying Alzheimer disease. Arch Neurol 1997; 54:634-40. [PMID: 9152121 DOI: 10.1001/archneur.1997.00550170104021] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
OBJECTIVE To examine the validity of the family history method for identifying Alzheimer disease (AD) by comparing family history and neuropathological diagnoses. METHODS Seventy-seven former residents of the Jewish Home and Hospital for the Aged, New York, NY, with neuropathological evaluations on record were blindly assessed for the presence of dementia and, if present, the type of dementia through family informants by telephone interviews. The Alzheimer's Disease Risk Questionnaire was used to collect demographic information and screen for possible dementia. If dementia was suspected, the Dementia Questionnaire was administered to assess the course and type of dementia, i.e., primary progressive dementia (PPD, likely AD), multiple infarct dementia, mixed dementia (i.e., PPD and multiple infarct dementia), and other dementias based on the modified Diagnostic and Statistical Manual of Mental Disorders, Third Edition, criteria. RESULTS Sixty (77.9%) of 77 elderly subjects were classified as having dementia and 17 (22.1%) were without dementia by family history evaluation. Of the 60 elderly subjects with dementia, 57 (95%) were found at autopsy to have had neuropathological changes related to dementia. The sensitivity of the family history diagnosis for dementia with related neuropathological change was 0.84 (57 of 68) and the specificity was 0.67 (6 of 9). Using family history information to differentiate the type of dementia, the sensitivity for definite or probable AD (with or without another condition) was 0.69 (36 of 51) and the specificity was 0.73 (19 of 26). The majority (9 of 15) of patients testing false negative for PPD had a history of stroke associated with onset of memory changes, excluding a diagnosis of PPD. CONCLUSIONS Identifying dementia, in general, and AD, in particular, has an acceptable sensitivity and specificity. As is true for direct clinical diagnosis, the major issue associated with misclassifying AD in a family history assessment is the masking effects of a coexisting non-AD dementia or dementia-related disorders, such as stroke. Including mixed cases, ie, PPD and multiple infarct dementia in estimates of the familial risk for AD can reduce the extent of underestimation of PPD.
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Affiliation(s)
- G Li
- Department of Psychiatry, University of Washington, Seattle, USA
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