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Rabin LA, Sikkes SA, Tommet D, Jones RN, Crane PK, Elbulok-Charcape MM, Dubbelman MA, Koscik R, Amariglio RE, Buckley RF, Boada M, Chételat G, Dubois B, Ellis KA, Gifford KA, Jefferson AL, Jessen F, Johnson S, Katz MJ, Lipton RB, Luck T, Margioti E, Maruff P, Molinuevo JL, Perrotin A, Petersen RC, Rami L, Reisberg B, Rentz DM, Riedel-Heller SG, Risacher SL, Rodriguez-Gomez O, Sachdev PS, Saykin AJ, Scarmeas N, Smart C, Snitz BE, Sperling RA, Taler V, van der Flier WM, van Harten AC, Wagner M, Wolfsgruber S. Linking self-perceived cognitive functioning questionnaires using item response theory: The subjective cognitive decline initiative. Neuropsychology 2023; 37:463-499. [PMID: 37276136 PMCID: PMC10564559 DOI: 10.1037/neu0000888] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/07/2023] Open
Abstract
OBJECTIVE Self-perceived cognitive functioning, considered highly relevant in the context of aging and dementia, is assessed in numerous ways-hindering the comparison of findings across studies and settings. Therefore, the present study aimed to link item-level self-report questionnaire data from international aging studies. METHOD We harmonized secondary data from 24 studies and 40 different questionnaires with item response theory (IRT) techniques using a graded response model with a Bayesian estimator. We compared item information curves to identify items with high measurement precision at different levels of the self-perceived cognitive functioning latent trait. Data from 53,030 neuropsychologically intact older adults were included, from 13 English language and 11 non-English (or mixed) language studies. RESULTS We successfully linked all questionnaires and demonstrated that a single-factor structure was reasonable for the latent trait. Items that made the greatest contribution to measurement precision (i.e., "top items") assessed general and specific memory problems and aspects of executive functioning, attention, language, calculation, and visuospatial skills. These top items originated from distinct questionnaires and varied in format, range, time frames, response options, and whether they captured ability and/or change. CONCLUSIONS This was the first study to calibrate self-perceived cognitive functioning data of geographically diverse older adults. The resulting item scores are on the same metric, facilitating joint or pooled analyses across international studies. Results may lead to the development of new self-perceived cognitive functioning questionnaires guided by psychometric properties, content, and other important features of items in our item bank. (PsycInfo Database Record (c) 2023 APA, all rights reserved).
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Affiliation(s)
- Laura A. Rabin
- Department of Psychology, Brooklyn College, Brooklyn, NY, USA and The Graduate Center of CUNY, NY, NY, USA
- Saul R. Korey Department of Neurology, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Sietske A.M. Sikkes
- Epidemiology and Data Science, Vrije Universiteit Amsterdam, Amsterdam UMC location VUmc, Amsterdam, The Netherlands
- Alzheimer Center Amsterdam, Neurology, Vrije Universiteit Amsterdam, Amsterdam UMC location VUmc, Amsterdam, The Netherlands
| | - Douglas Tommet
- Department of Psychiatry and Human Behavior and Neurology, Warren Alpert Medical School, Brown University, Providence, RI, USA
| | - Richard N. Jones
- Department of Psychiatry and Human Behavior and Neurology, Warren Alpert Medical School, Brown University, Providence, RI, USA
| | - Paul K. Crane
- Division of General Internal Medicine, University of Washington, Seattle, WA, USA
| | | | - Mark A. Dubbelman
- Alzheimer Center Amsterdam, Neurology, Vrije Universiteit Amsterdam, Amsterdam UMC location VUmc, Amsterdam, The Netherlands
| | - Rebecca Koscik
- Wisconsin Alzheimer's Institute University of Wisconsin School of Medicine and Public Health Madison WI, USA
- Department of Medicine, University of Wisconsin School of Medicine and Public Health Madison WI, USA
| | - Rebecca E. Amariglio
- Department of Neurology, Brigham and Women’s Hospital, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Rachel F. Buckley
- Department of Neurology, Brigham and Women’s Hospital, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
- Department of Psychiatry and Melbourne School of Psychological Sciences, University of Melbourne, Melbourne, Australia
| | - Mercè Boada
- Alzheimer Research Center and Memory Clinic of Fundació ACE, Institut Català de Neurociències Aplicades, Barcelona, Spain
| | - Gaël Chételat
- Normandie Univ, UNICAEN, INSERM, U1237, PhIND "Physiopathology and Imaging of Neurological Disorders", NeuroPresage Team, Cyceron, 14000 Caen, France
| | - Bruno Dubois
- Université Pierre et Marie Curie-Paris 6, AP-HP, Hôpital de la Salpêtrière, Paris, France
- Centre des Maladies Cognitives et Comportementales, Institut du Cerveau et de la Moelle épinière (ICM), UMRS975, Paris, France
| | - Kathryn A. Ellis
- Department of Psychiatry and Melbourne School of Psychological Sciences, University of Melbourne, Melbourne, Australia
| | - Katherine A. Gifford
- Vanderbilt Memory & Alzheimer’s Center, Department of Neurology, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Angela L. Jefferson
- Vanderbilt Memory & Alzheimer’s Center, Department of Neurology, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Frank Jessen
- Department of Psychiatry and Psychotherapy, Medical Faculty, University of Cologne, Cologne, Germany
- German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany
| | - Sterling Johnson
- Geriatric Research Education and Clinical Center William S. Middleton Memorial Veterans Hospital Madison WI, USA
- University of Wisconsin School of Medicine and Public Health, Madison WI, USA
| | - Mindy J. Katz
- Saul R. Korey Department of Neurology, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Richard B. Lipton
- Saul R. Korey Department of Neurology, Albert Einstein College of Medicine, Bronx, NY, USA
- Department of Psychiatry and Behavioral Medicine, Albert Einstein College of Medicine, Bronx, NY, USA
- Department of Epidemiology & Population Health, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Tobias Luck
- Faculty of Applied Social Sciences, University of Applied Sciences Erfurt, Erfurt, Germany
| | - Eleni Margioti
- Laboratory of Cognitive Neuroscience, School of Psychology, Aristotle University of Thessaloniki, Thessaloniki, Greece
- Aviv Clinics, Jumeirah Lake Towers, Dubai, United Arab Emirates
| | | | - Jose Luis Molinuevo
- Alzheimer’s Disease and Other Cognitive Disorders Unit, IDIBAPS, Hospital Clinic, Barcelona, Spain
| | - Audrey Perrotin
- Normandie Univ, UNICAEN, INSERM, U1237, PhIND "Physiopathology and Imaging of Neurological Disorders", NeuroPresage Team, Cyceron, 14000 Caen, France
| | - Ronald C. Petersen
- Department of Health Sciences Research, Mayo Clinic, Rochester, MN, USA
- Department of Neurology, Mayo Clinic, Rochester, MN, USA
| | - Lorena Rami
- Alzheimer’s Disease and Other Cognitive Disorders Unit, IDIBAPS, Hospital Clinic, Barcelona, Spain
| | - Barry Reisberg
- Department of Psychiatry, New York University Langone Medical Center, New York, NY, USA
- Silberstein Aging and Dementia Research Center, New York University School of Medicine, New York, NY, USA
| | - Dorene M. Rentz
- Department of Neurology, Brigham and Women’s Hospital, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Steffi G. Riedel-Heller
- Institute of Social Medicine, Occupational Health and Public Health (ISAP), University of Leipzig, Leipzig, Germany
| | - Shannon L. Risacher
- Department of Radiology and Imaging Sciences, Indiana University School of Medicine, Indianapolis, IN, USA
- Indiana Alzheimer’s Disease Research Center, Indiana University School of Medicine, Indianapolis, IN
| | - Octavio Rodriguez-Gomez
- Alzheimer Research Center and Memory Clinic of Fundació ACE, Institut Català de Neurociències Aplicades, Barcelona, Spain
| | - Perminder S. Sachdev
- Centre for Healthy Brain Ageing (CHeBA), School of Psychiatry, University of New South Wales, Sydney, Australia
| | - Andrew J. Saykin
- Department of Radiology and Imaging Sciences, Indiana University School of Medicine, Indianapolis, IN, USA
- Indiana Alzheimer’s Disease Research Center, Indiana University School of Medicine, Indianapolis, IN
| | - Nikolaos Scarmeas
- 1st Department of Neurology, Aiginition Hospital, National and Kapodistrian University of Athens Medical School, Greece
- Department of Neurology, Columbia University, New York, USA
| | - Colette Smart
- Department of Psychology, University of Victoria, Victoria, BC, Canada
- Centre on Aging, University of Victoria, Victoria, BC, Canada
| | - Beth E. Snitz
- Department of Neurology, University of Pittsburgh, Pittsburgh, PA, USA
| | - Reisa A. Sperling
- Department of Neurology, Brigham and Women’s Hospital, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Vanessa Taler
- School of Psychology, University of Ottawa, Ottawa, ON, Canada
- Bruyère Research Institute, Ottawa, ON, Canada
| | - Wiesje M. van der Flier
- Epidemiology and Data Science, Vrije Universiteit Amsterdam, Amsterdam UMC location VUmc, Amsterdam, The Netherlands
- Alzheimer Center Amsterdam, Neurology, Vrije Universiteit Amsterdam, Amsterdam UMC location VUmc, Amsterdam, The Netherlands
- Amsterdam Neuroscience, Neurodegeneration, Amsterdam, The Netherlands
| | - Argonde C. van Harten
- Alzheimer Center Amsterdam, Neurology, Vrije Universiteit Amsterdam, Amsterdam UMC location VUmc, Amsterdam, The Netherlands
- Department of Neurology, Mayo Clinic, Rochester, MN, USA
- Amsterdam Neuroscience, Neurodegeneration, Amsterdam, The Netherlands
| | - Michael Wagner
- German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany
- Department of Neurodegenerative Diseases and Geriatric Psychiatry, University of Bonn, Bonn, Germany
| | - Steffen Wolfsgruber
- German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany
- Department of Psychiatry and Psychotherapy University of Bonn, Bonn, Germany
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Gavett BE, Ilango SD, Koscik R, Ma Y, Helfand B, Eng CW, Gross A, Trittschuh EH, Jones RN, Mungas D. Harmonization of cognitive screening tools for dementia across diverse samples: A simulation study. Alzheimers Dement (Amst) 2023; 15:e12438. [PMID: 37342610 PMCID: PMC10277671 DOI: 10.1002/dad2.12438] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Revised: 03/29/2023] [Accepted: 04/10/2023] [Indexed: 06/23/2023]
Abstract
Introduction Research focusing on cognitive aging and dementia is a global endeavor. However, cross-national differences in cognition are embedded in other sociocultural differences, precluding direct comparisons of test scores. Such comparisons can be facilitated by co-calibration using item response theory (IRT). The goal of this study was to explore, using simulation, the necessary conditions for accurate harmonization of cognitive data. Method Neuropsychological test scores from the US Health and Retirement Study (HRS) and the Mexican Health and Aging Study (MHAS) were subjected to IRT analysis to estimate item parameters and sample means and standard deviations. These estimates were used to generate simulated item response patterns under 10 scenarios that adjusted the quality and quantity of linking items used in harmonization. IRT-derived factor scores were compared to the known population values to assess bias, efficiency, accuracy, and reliability of the harmonized data. Results The current configuration of HRS and MHAS data was not suitable for harmonization, as poor linking item quality led to large bias in both cohorts. Scenarios with more numerous and higher quality linking items led to less biased and more accurate harmonization. Discussion Linking items must possess low measurement error across the range of latent ability for co-calibration to be successful. HIGHLIGHTS We developed a statistical simulation platform to evaluate the degree to which cross-sample harmonization accuracy varies as a function of the quality and quantity of linking items.Two large studies of aging-one in Mexico and one in the United States-use three common items to measure cognition.These three common items have weak correspondence with the ability being measured and are all low in difficulty.Harmonized scores derived from the three common linking items will provide biased and inaccurate estimates of cognitive ability.Harmonization accuracy is greatest when linking items vary in difficulty and are strongly related to the ability being measured.
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Affiliation(s)
- Brandon E. Gavett
- School of Psychological ScienceUniversity of Western AustraliaPerthWestern AustraliaAustralia
| | - Sindana D. Ilango
- Department of EpidemiologyUniversity of Washington School of Public HealthSeattleWashingtonUSA
| | - Rebecca Koscik
- Wisconsin Alzheimer's InstituteUniversity of Wisconsin School of Medicine and Public HealthMadisonWisconsinUSA
- Wisconsin Alzheimer's Disease Research CenterUniversity of Wisconsin School of Medicine and Public HealthMadisonWisconsinUSA
- Department of MedicineUniversity of Wisconsin School of Medicine and Public HealthMadisonWisconsinUSA
| | - Yue Ma
- Wisconsin Alzheimer's Disease Research CenterUniversity of Wisconsin School of Medicine and Public HealthMadisonWisconsinUSA
- Division of Geriatrics and GerontologyDepartment of MedicineUniversity of Wisconsin School of Medicine and Public HealthMadisonWisconsinUSA
| | - Benjamin Helfand
- Department of Emergency MedicineUniversity of Massachusetts Medical SchoolWorcesterMassachusettsUSA
- Departments of Psychiatry and Human Behavior and NeurologyWarren Alpert Medical SchoolBrown UniversityProvidenceRhode IslandUSA
| | - Chloe W. Eng
- Department of Epidemiology and BiostatisticsUniversity of California San FranciscoSan FranciscoCaliforniaUSA
| | - Alden Gross
- Department of EpidemiologyJohns Hopkins Bloomberg School Public HealthBaltimoreMarylandUSA
| | - Emily H. Trittschuh
- VA Puget Sound Health Care SystemGeriatric Research Education and Clinical CareSeattleWashingtonUSA
- Department of Psychiatry and Behavioral SciencesUniversity of Washington School of MedicineSeattleWashingtonUSA
| | - Richard N. Jones
- Departments of Psychiatry and Human Behavior and NeurologyWarren Alpert Medical SchoolBrown UniversityProvidenceRhode IslandUSA
- Department of NeurologyBrown University Warren Alpert Medical SchoolProvidenceRhode IslandUSA
| | - Dan Mungas
- Department of NeurologyUniversity of CaliforniaSacramentoCaliforniaUSA
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Williams VJ, Koscik R, Sicinski K, Johnson SC, Herd P, Asthana S. Associations Between Midlife Menopausal Hormone Therapy Use, Incident Diabetes, and Late Life Memory in the Wisconsin Longitudinal Study. J Alzheimers Dis 2023; 93:727-741. [PMID: 37092221 PMCID: PMC10551825 DOI: 10.3233/jad-221240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/25/2023]
Abstract
BACKGROUND Prior research suggests a link between menopausal hormone therapy (MHT) use, memory function, and diabetes risk. The menopausal transition is a modifiable period to enhance long-term health and cognitive outcomes, although studies have been limited by short follow-up periods precluding a solid understanding of the lasting effects of MHT use on cognition. OBJECTIVE We examined the effects of midlife MHT use on subsequent diabetes incidence and late life memory performance in a large, same-aged, population-based cohort. We hypothesized that the beneficial effects of MHT use on late life cognition would be partially mediated by reduced diabetes risk. METHODS 1,792 women from the Wisconsin Longitudinal Study (WLS) were included in analysis. We employed hierarchical linear regression, Cox regression, and causal mediation models to test the associations between MHT history, diabetes incidence, and late life cognitive performance. RESULTS 1,088/1,792 women (60.7%) reported a history of midlife MHT use and 220/1,792 (12.3%) reported a history of diabetes. MHT use history was associated with better late life immediate recall (but not delayed recall), as well as a reduced risk of diabetes with protracted time to onset. Causal mediation models suggest that the beneficial effect of midlife MHT use on late life immediate recall were at least partially mediated by diabetes risk. CONCLUSION Our data support a beneficial effect of MHT use on late life immediate recall (learning) that was partially mediated by protection against diabetes risk, supporting MHT use in midlife as protective against late life cognitive decline and adverse health outcomes.
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Affiliation(s)
- Victoria J. Williams
- Division of Geriatrics and Gerontology, Department of Medicine, University of Wisconsin at Madison, School of Medicine and Public Health, Madison, WI, USA
- Wisconsin Alzheimer’s Disease Research Center, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA
| | - Rebecca Koscik
- Division of Geriatrics and Gerontology, Department of Medicine, University of Wisconsin at Madison, School of Medicine and Public Health, Madison, WI, USA
- Wisconsin Alzheimer’s Disease Research Center, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA
- Wisconsin Alzheimer’s Institute, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA
| | - Kamil Sicinski
- Center for Demography of Health and Aging, University of Wisconsin at Madison, Madison, WI, USA
| | - Sterling C. Johnson
- Division of Geriatrics and Gerontology, Department of Medicine, University of Wisconsin at Madison, School of Medicine and Public Health, Madison, WI, USA
- Wisconsin Alzheimer’s Disease Research Center, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA
- Wisconsin Alzheimer’s Institute, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA
- Geriatric Research Education and Clinical Center, William S. Middleton Veterans Hospital, Madison, WI, USA
| | - Pamela Herd
- McCourt School of Public Policy, Georgetown University, Washington, DC, USA
| | - Sanjay Asthana
- Division of Geriatrics and Gerontology, Department of Medicine, University of Wisconsin at Madison, School of Medicine and Public Health, Madison, WI, USA
- Wisconsin Alzheimer’s Disease Research Center, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA
- Wisconsin Alzheimer’s Institute, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA
- Geriatric Research Education and Clinical Center, William S. Middleton Veterans Hospital, Madison, WI, USA
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Poonam PBH, Koscik R, Nguyen T, Rikhi S, Lin HM. Nitric oxide versus epoprostenol for refractory hypoxemia in Covid-19. PLoS One 2022; 17:e0270646. [PMID: 35759496 PMCID: PMC9236233 DOI: 10.1371/journal.pone.0270646] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Accepted: 06/14/2022] [Indexed: 11/21/2022] Open
Abstract
Objective To compare the efficacy and outcomes with inhaled nitric oxide (iNO) and inhaled epoprostenol (iEPO) in patients with refractory hypoxemia due to COVID-19. Design Retrospective Cohort Study. Setting Single health system multicenter academic teaching hospitals. Patients OR subjects Age group of 18–80 years admitted to the medical ICU. Interventions Mechanically ventilated patients with COVID-19 infection, who received either iNO or iEPO between March 1st, 2020, and June 30th, 2020. Measurements and main results The primary outcome was the change in the PaO2/FiO2 (P/F) ratio 1 hour after initiation of pulmonary vasodilator therapy. Secondary outcomes include P/F ratios on days 1–3 after initiation, positive response in P/F ratio (increase of at least 20% in PaO2), total days of treatment, rebound hypoxemia (if there was a drop in oxygen saturation after treatment was stopped), ventilator free days (if any patient was extubated), days in ICU, days to extubation, days to tracheostomy, mortality days after intubation, 30-day survival and mortality. 183 patients were excluded, as they received both iNO and iEPO. Of the remaining 103 patients, 62 received iEPO and 41 received iNO. The severity of ARDS was similar in both groups. Change in P/F ratio at one hour was 116 (70.3) with iNO and 107 (57.6) with iEPO (Mean/SD). Twenty-two (53.7%) patients in the iNO group and 25 (40.3%) in the iEPO group were responders to pulmonary vasodilators n(%)(p = 0.152) (more than 20% increase in partial pressure of oxygen, Pao2), and 18 (43.9%) and 31 (50%) patients in the iNO and iEPO group (p = 0.685), respectively, had rebound hypoxemia. Only 7 patients in the cohort achieved ventilator free days (3 in the iEPO group and 4 in iNO group). Conclusions We found no significant difference between iNO and iEPO in terms of change in P/F ratio, duration of mechanical ventilation, ICU, in-hospital mortality in this cohort of mechanically ventilated patients with COVID-19. Larger, prospective studies are necessary to validate these results.
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Affiliation(s)
- Pai B. H. Poonam
- Department of Anesthesia, Perioperative and Pain Medicine, Mount Sinai West-Morningside Hospitals, New York, NY, United States of America
- * E-mail:
| | - Rebecca Koscik
- Department of Anesthesia, NYU Langone Health, New York, NY, United States of America
| | - Trong Nguyen
- Department of Anesthesia, Perioperative and Pain Medicine, Mount Sinai West-Morningside Hospitals, New York, NY, United States of America
| | - Shefali Rikhi
- Department of Anesthesia, Perioperative and Pain Medicine, Mount Sinai West-Morningside Hospitals, New York, NY, United States of America
| | - Hung-Mo Lin
- Department of Population Health Science and Policy, Mount Sinai West-Morningside Hospitals, New York, NY, United States of America
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Koscik R, Ngai J. Donation after Circulatory Death: Expanding Heart Transplants. J Cardiothorac Vasc Anesth 2022; 36:3867-3876. [DOI: 10.1053/j.jvca.2022.05.025] [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] [Received: 02/15/2022] [Revised: 05/11/2022] [Accepted: 05/18/2022] [Indexed: 11/11/2022]
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Talamonti D, Koscik R, Johnson S, Bruno D. Temporal contiguity and ageing: The role of memory organization in cognitive decline. J Neuropsychol 2021; 15 Suppl 1:53-65. [PMID: 32652802 PMCID: PMC7958486 DOI: 10.1111/jnp.12219] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2019] [Revised: 06/02/2020] [Indexed: 01/10/2023]
Abstract
The temporal contiguity effect is the tendency to form associations between items presented in nearby study positions. In the present study, we explored whether temporal contiguity predicted conversion to cognitively unimpaired-declining (CUD) status from a baseline of unimpaired older adults. Data from 419 participants were drawn from the Wisconsin Registry of Alzheimer's Prevention (WRAP) data set and analysed with binary logistic regressions. Temporal contiguity was calculated using the Rey Auditory Verbal Learning Test. Other predictors included age, years of education, sex, APOE-ε4 status, and other measures of memory recall. Lower temporal contiguity predicted conversion to CUD after accounting for covariates. These findings support the hypothesis that temporal organization in memory is related to cognitive decline and suggest that temporal contiguity may be used for studies of early detection.
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Affiliation(s)
- Deborah Talamonti
- EPIC center, Montreal Heart Institute, Université de Montréal, Montreal, QC, CA
| | - Rebecca Koscik
- Wisconsin Alzheimer’s Institute, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA
| | - Sterling Johnson
- Wisconsin Alzheimer’s Institute, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA
- Geriatric Research Education and Clinical Center, Wm. S. Middleton Veterans Hospital, Madison, WI, USA
| | - Davide Bruno
- Faculty of Psychology, Liverpool John Moores University, Liverpool, UK
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Talamonti D, Koscik R, Johnson S, Bruno D. Predicting Early Mild Cognitive Impairment With Free Recall: The Primacy of Primacy. Arch Clin Neuropsychol 2020; 35:133-142. [PMID: 30994919 DOI: 10.1093/arclin/acz013] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2018] [Revised: 02/20/2019] [Accepted: 03/20/2019] [Indexed: 11/14/2022] Open
Abstract
OBJECTIVES Serial position effects have been found to discriminate between normal and pathological aging, and to predict conversion from Mild Cognitive Impairment (MCI) to Alzheimer's disease (AD). Different scoring methods have been used to estimate the accuracy of these predictions. In the current study, we investigated delayed primacy as predictor of progression to early MCI over established diagnostic memory methods. We also compared three serial position methods (regional, standard and delayed scores) to determine which measure is the most sensitive in differentiating between individuals who develop early MCI from a baseline of cognitively intact older adults. METHOD Data were analyzed with binary logistic regression and with receiver-operating characteristic (ROC). Baseline serial position scores were collected using the Rey's Auditory Verbal Learning Test and used to predict conversion to early MCI. The diagnosis of early MCI was obtained through statistical algorithm and consequent consensus conference. One hundred and ninety-one participants were included in the analyses. All participants were aged 60 or above and cognitively intact at baseline. RESULTS The binary logistic regression showed that delayed primacy was the only predictor of conversion to early MCI, when compared to total and delayed recall. ROC curves showed that delayed primacy was still the most sensitive predictor of progression to early MCI when compared to other serial position measures. CONCLUSIONS These findings are consistent with previous studies and support the hypothesis that delayed primacy may be a useful cognitive marker of early detection of neurodegeneration.
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Affiliation(s)
- Deborah Talamonti
- School of Natural Sciences and Psychology, Liverpool John Moores University, Liverpool, UK
| | - Rebecca Koscik
- Wisconsin Alzheimer's Institute, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA
| | - Sterling Johnson
- Wisconsin Alzheimer's Institute, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA.,Geriatric Research Education and Clinical Center, Wm. S. Middleton Veterans Hospital, Madison, WI, USA
| | - Davide Bruno
- School of Natural Sciences and Psychology, Liverpool John Moores University, Liverpool, UK
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O'Hara J, Norton D, Koscik R, Lambrou N, Wyman M, Adrienne J, Bouges S, Zuelsdorff M, Flowers-Benton S, Jonaitis ECarlsson C, Johnson S, Asthana S, Gleason C. C-13 Sex Differences in Cognitive and Neurobiological Markers of Alzheimer's Disease. Arch Clin Neuropsychol 2019. [DOI: 10.1093/arclin/acz034.175] [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: 11/14/2022] Open
Abstract
Abstract
Objective
Previous work has demonstrated that intra-individual cognitive variability (IICV) has predictive power similar to traditional Alzheimer’s disease (AD) biomarkers, such as CSF or hippocampal volume (HV) loss. Genetic factors, such as sex, have been identified as predictors of cognitive decline. Analysis of sex differences in IICV and other biomarkers may elucidate additional dimensions of this metric.
Method
Baseline neurocognitive test and neuroimaging data from 335 participants with ≥2 visits enrolled in the Wisconsin Alzheimer’s Disease Research Center Clinical Core were included. Z-scores were calculated comparing individual performance to group performance by test (Rey Auditory Verbal Learning Test (Learning and Delayed Recall), Trail Making Test (A and B), and either Boston Naming Test (BNT) or Multilingual Naming Test (MINT)). MINT scores were converted to BNT scores using the NACC Crosswalk Study. The standard deviation of z-scores across tests was calculated to determine IICV. Characteristics by sex were compared using Mann-Whitney and Fisher’s Exact tests. Spearman’s Rho was calculated to compare IICV and HV (relative to intercranial volume).
Results
At baseline (Table 1): (1) Males had more education than females; (2) females had both higher relative HV and IICV; and (3) in females, relative HV demonstrated a weak positive correlation with baseline IICV (Figure 1).
Conclusions
IICV has previously demonstrated potential as a cost-effective non-invasive marker of preclinical AD. In females, larger relative HV and its correlation with IICV may be due to differences in metabolic brain age or concurrent progression of HV and IICV through the AD process. Analyses of other biopsychosocial factors are needed.
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O'Hara J, Norton D, Koscik R, Lambrou N, Wyman M, Johnson A, Bouges S, Zuelsdorff M, Flowers-Benton S, Jonaitis ECarlsson C, Johnson S, Asthana S, Gleason C. C-12 Race and Sex Differences in Cognitive and Neurobiological Markers of Alzheimer's Disease. Arch Clin Neuropsychol 2019. [DOI: 10.1093/arclin/acz034.174] [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: 11/12/2022] Open
Abstract
Abstract
Objective
Intra-Individual Cognitive Variability (IICV) previously demonstrated predictive power similar to AD biomarkers (i.e., CSF and hippocampal volume (HV) loss). Previous work suggested sex differences in relative HV and IICV. Additionally, IICV differs in whites and underrepresented racial groups (URG). Our objective was to analyze these sex differences in white and URG participants.
Method
Baseline neurocognitive test and neuroimaging data from 335 cognitively healthy participants with ≥2 visits enrolled in the Wisconsin ADRC Clinical Core were included. Z-scores were calculated comparing individual performance to group performance by test (Rey Auditory Verbal Learning Test (Learning and Delayed Recall), Trail Making Test (A and B), and either Boston Naming Test (BNT) or Multilingual Naming Test (MINT)). MINT scores were converted to BNT scores using the NACC Crosswalk Study. The standard deviation of z-scores across tests was calculated to determine IICV. Characteristics by race and sex were compared using Mann-Whitney, Fisher’s Exact, and Kruskal-Wallis tests. Spearman’s Rho was calculated to compare baseline IICV and relative HV.
Results
At baseline (Table 1), differences across racial groups in age, years of education, relative HV, and IICV were identified. Sex and racial group differences were identified (Table 2). A weak positive correlation between HV and IICV was seen in white females (Figure 1).
Conclusions
IICV has potential to become a cost-effective, non-invasive marker of preclinical AD. Again, correlation between HV and IICV was seen, but only in white females. Analyses suggest group differences between white and URG males and females. However, more data is needed to further explore these differences.
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Neu SC, Pa J, Kukull W, Beekly D, Kuzma A, Gangadharan P, Wang LS, Romero K, Arneric SP, Redolfi A, Orlandi D, Frisoni GB, Au R, Devine S, Auerbach S, Espinosa A, Boada M, Ruiz A, Johnson SC, Koscik R, Wang JJ, Hsu WC, Chen YL, Toga AW. Apolipoprotein E Genotype and Sex Risk Factors for Alzheimer Disease: A Meta-analysis. JAMA Neurol 2017; 74:1178-1189. [PMID: 28846757 PMCID: PMC5759346 DOI: 10.1001/jamaneurol.2017.2188] [Citation(s) in RCA: 396] [Impact Index Per Article: 56.6] [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: 12/15/2022]
Abstract
Importance It is unclear whether female carriers of the apolipoprotein E (APOE) ε4 allele are at greater risk of developing Alzheimer disease (AD) than men, and the sex-dependent association of mild cognitive impairment (MCI) and APOE has not been established. Objective To determine how sex and APOE genotype affect the risks for developing MCI and AD. Data Sources Twenty-seven independent research studies in the Global Alzheimer's Association Interactive Network with data on nearly 58 000 participants. Study Selection Non-Hispanic white individuals with clinical diagnostic and APOE genotype data. Data Extraction and Synthesis Homogeneous data sets were pooled in case-control analyses, and logistic regression models were used to compute risks. Main Outcomes and Measures Age-adjusted odds ratios (ORs) and 95% confidence intervals for developing MCI and AD were calculated for men and women across APOE genotypes. Results Participants were men and women between ages 55 and 85 years. Across data sets most participants were white, and for many participants, racial/ethnic information was either not collected or not known. Men (OR, 3.09; 95% CI, 2.79-3.42) and women (OR, 3.31; CI, 3.03-3.61) with the APOE ε3/ε4 genotype from ages 55 to 85 years did not show a difference in AD risk; however, women had an increased risk compared with men between the ages of 65 and 75 years (women, OR, 4.37; 95% CI, 3.82-5.00; men, OR, 3.14; 95% CI, 2.68-3.67; P = .002). Men with APOE ε3/ε4 had an increased risk of AD compared with men with APOE ε3/ε3. The APOE ε2/ε3 genotype conferred a protective effect on women (OR, 0.51; 95% CI, 0.43-0.61) decreasing their risk of AD more (P value = .01) than men (OR, 0.71; 95% CI, 0.60-0.85). There was no difference between men with APOE ε3/ε4 (OR, 1.55; 95% CI, 1.36-1.76) and women (OR, 1.60; 95% CI, 1.43-1.81) in their risk of developing MCI between the ages of 55 and 85 years, but women had an increased risk between 55 and 70 years (women, OR, 1.43; 95% CI, 1.19-1.73; men, OR, 1.07; 95% CI, 0.87-1.30; P = .05). There were no significant differences between men and women in their risks for converting from MCI to AD between the ages of 55 and 85 years. Individuals with APOE ε4/ε4 showed increased risks vs individuals with ε3/ε4, but no significant differences between men and women with ε4/ε4 were seen. Conclusions and Relevance Contrary to long-standing views, men and women with the APOE ε3/ε4 genotype have nearly the same odds of developing AD from age 55 to 85 years, but women have an increased risk at younger ages.
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Affiliation(s)
- Scott C Neu
- Laboratory of Neuro Imaging, Stevens Institute for Neuroimaging and Informatics, Keck School of Medicine, University of Southern California, Los Angeles
| | - Judy Pa
- Laboratory of Neuro Imaging, Stevens Institute for Neuroimaging and Informatics, Keck School of Medicine, University of Southern California, Los Angeles
| | - Walter Kukull
- National Alzheimer's Coordinating Center, University of Washington, Seattle
| | - Duane Beekly
- National Alzheimer's Coordinating Center, University of Washington, Seattle
| | - Amanda Kuzma
- Department of Pathology and Laboratory Medicine, University of Pennsylvania, Philadelphia
| | | | - Li-San Wang
- Department of Pathology and Laboratory Medicine, University of Pennsylvania, Philadelphia
| | - Klaus Romero
- Coalition Against Major Disease, Critical Path Institute, Tucson, Arizona
| | - Stephen P Arneric
- Coalition Against Major Disease, Critical Path Institute, Tucson, Arizona
| | - Alberto Redolfi
- IRCCS Fatebenefratelli, The National Centre for Alzheimer's Disease, Brescia, Italy
| | - Daniele Orlandi
- IRCCS Fatebenefratelli, The National Centre for Alzheimer's Disease, Brescia, Italy
| | - Giovanni B Frisoni
- IRCCS Fatebenefratelli, The National Centre for Alzheimer's Disease, Brescia, Italy
- University Hospitals and University of Geneva, Geneva, Switzerland
| | - Rhoda Au
- Department of Anatomy and Neurobiology, Boston University Schools of Medicine and Public Health, Boston, Massachusetts
- Department Neurology and Epidemiology, Boston University Schools of Medicine and Public Health, Boston, Massachusetts
- Framingham Heart Study, Boston University Schools of Medicine and Public Health, Boston, Massachusetts
| | - Sherral Devine
- Department of Neurology, Framingham Heart Study, Boston University School of Medicine, Boston, Massachusetts
| | - Sanford Auerbach
- Department of Neurology, Framingham Heart Study, Boston University School of Medicine, Boston, Massachusetts
| | - Ana Espinosa
- Research Center and Memory Clinic, Fundació ACE, Institut Català de Neurociències Aplicades, Barcelona, Spain
| | - Mercè Boada
- Research Center and Memory Clinic, Fundació ACE, Institut Català de Neurociències Aplicades, Barcelona, Spain
| | - Agustín Ruiz
- Research Center and Memory Clinic, Fundació ACE, Institut Català de Neurociències Aplicades, Barcelona, Spain
| | | | - Rebecca Koscik
- University of Wisconsin School of Medicine and Public Health, Madison
| | - Jiun-Jie Wang
- Department of Medical Imaging and Radiological Sciences, Chang Gung University, Taoyuan City, Taiwan
- Neuroscience Research Center, Chang Gung Memorial Hospital at Linkou, Taoyuan City, Taiwan
| | - Wen-Chuin Hsu
- Department of Neurology, Chang Gung Memorial Hospital at Linkou, Taoyuan City, Taiwan
- Dementia Center, Chang Gung Memorial Hospital at Linkou, Taoyuan City, Taiwan
| | - Yao-Liang Chen
- Department of Medical Imaging and Intervention, Chang Gung Memorial Hospital at Linkou, Taoyuan City, Taiwan
- Department of Medical Imaging and Intervention, Keelung Branch, Chang Gung Memorial Hospital, Keelung City, Taiwan
| | - Arthur W Toga
- Laboratory of Neuro Imaging, Stevens Institute for Neuroimaging and Informatics, Keck School of Medicine, University of Southern California, Los Angeles
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Schultz SA, Larson J, Oh J, Koscik R, Dowling MN, Gallagher CL, Carlsson CM, Rowley HA, Bendlin BB, Asthana S, Hermann BP, Johnson SC, Sager M, LaRue A, Okonkwo OC. Participation in cognitively-stimulating activities is associated with brain structure and cognitive function in preclinical Alzheimer's disease. Brain Imaging Behav 2016; 9:729-36. [PMID: 25358750 DOI: 10.1007/s11682-014-9329-5] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
This study tested the hypothesis that frequent participation in cognitively-stimulating activities, specifically those related to playing games and puzzles, is beneficial to brain health and cognition among middle-aged adults at increased risk for Alzheimer's disease (AD). Three hundred twenty-nine cognitively normal, middle-aged adults (age range, 43.2-73.8 years) enrolled in the Wisconsin Registry for Alzheimer's Prevention (WRAP) participated in this study. They reported their current engagement in cognitive activities using a modified version of the Cognitive Activity Scale (CAS), underwent a structural MRI scan, and completed a comprehensive cognitive battery. FreeSurfer was used to derive gray matter (GM) volumes from AD-related regions of interest (ROIs), and composite measures of episodic memory and executive function were obtained from the cognitive tests. Covariate-adjusted least squares analyses were used to examine the association between the Games item on the CAS (CAS-Games) and both GM volumes and cognitive composites. Higher scores on CAS-Games were associated with greater GM volumes in several ROIs including the hippocampus, posterior cingulate, anterior cingulate, and middle frontal gyrus. Similarly, CAS-Games scores were positively associated with scores on the Immediate Memory, Verbal Learning & Memory, and Speed & Flexibility domains. These findings were not modified by known risk factors for AD. In addition, the Total score on the CAS was not as sensitive as CAS-Games to the examined brain and cognitive measures. For some individuals, participation in cognitive activities pertinent to game playing may help prevent AD by preserving brain structures and cognitive functions vulnerable to AD pathophysiology.
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Affiliation(s)
- Stephanie A Schultz
- Geriatric Research Education and Clinical Center, William S. Middleton Memorial Veterans Hospital, Madison, WI, 53705, USA
- Wisconsin Alzheimer's Disease Research Center, University of Wisconsin School of Medicine and Public Health, Madison, WI, 53705, USA
| | - Jordan Larson
- Geriatric Research Education and Clinical Center, William S. Middleton Memorial Veterans Hospital, Madison, WI, 53705, USA
- Wisconsin Alzheimer's Disease Research Center, University of Wisconsin School of Medicine and Public Health, Madison, WI, 53705, USA
| | - Jennifer Oh
- Geriatric Research Education and Clinical Center, William S. Middleton Memorial Veterans Hospital, Madison, WI, 53705, USA
- Wisconsin Alzheimer's Disease Research Center, University of Wisconsin School of Medicine and Public Health, Madison, WI, 53705, USA
| | - Rebecca Koscik
- Wisconsin Alzheimer's Institute, University of Wisconsin School of Medicine and Public Health, Madison, WI, 53705, USA
| | - Maritza N Dowling
- Wisconsin Alzheimer's Disease Research Center, University of Wisconsin School of Medicine and Public Health, Madison, WI, 53705, USA
- Wisconsin Alzheimer's Institute, University of Wisconsin School of Medicine and Public Health, Madison, WI, 53705, USA
- Department of Biostatistics & Medical Informatics, University of Wisconsin School of Medicine and Public Health, Madison, WI, 53705, USA
| | - Catherine L Gallagher
- Geriatric Research Education and Clinical Center, William S. Middleton Memorial Veterans Hospital, Madison, WI, 53705, USA
- Department of Neurology, University of Wisconsin School of Medicine and Public Health, Madison, WI, 53705, USA
| | - Cynthia M Carlsson
- Geriatric Research Education and Clinical Center, William S. Middleton Memorial Veterans Hospital, Madison, WI, 53705, USA
- Wisconsin Alzheimer's Disease Research Center, University of Wisconsin School of Medicine and Public Health, Madison, WI, 53705, USA
| | - Howard A Rowley
- Wisconsin Alzheimer's Disease Research Center, University of Wisconsin School of Medicine and Public Health, Madison, WI, 53705, USA
- Department of Radiology, University of Wisconsin School of Medicine and Public Health, Madison, WI, 53705, USA
| | - Barbara B Bendlin
- Geriatric Research Education and Clinical Center, William S. Middleton Memorial Veterans Hospital, Madison, WI, 53705, USA
- Wisconsin Alzheimer's Disease Research Center, University of Wisconsin School of Medicine and Public Health, Madison, WI, 53705, USA
- Wisconsin Alzheimer's Institute, University of Wisconsin School of Medicine and Public Health, Madison, WI, 53705, USA
| | - Sanjay Asthana
- Geriatric Research Education and Clinical Center, William S. Middleton Memorial Veterans Hospital, Madison, WI, 53705, USA
- Wisconsin Alzheimer's Disease Research Center, University of Wisconsin School of Medicine and Public Health, Madison, WI, 53705, USA
- Wisconsin Alzheimer's Institute, University of Wisconsin School of Medicine and Public Health, Madison, WI, 53705, USA
| | - Bruce P Hermann
- Wisconsin Alzheimer's Disease Research Center, University of Wisconsin School of Medicine and Public Health, Madison, WI, 53705, USA
- Wisconsin Alzheimer's Institute, University of Wisconsin School of Medicine and Public Health, Madison, WI, 53705, USA
- Department of Neurology, University of Wisconsin School of Medicine and Public Health, Madison, WI, 53705, USA
| | - Sterling C Johnson
- Geriatric Research Education and Clinical Center, William S. Middleton Memorial Veterans Hospital, Madison, WI, 53705, USA
- Wisconsin Alzheimer's Disease Research Center, University of Wisconsin School of Medicine and Public Health, Madison, WI, 53705, USA
- Wisconsin Alzheimer's Institute, University of Wisconsin School of Medicine and Public Health, Madison, WI, 53705, USA
| | - Mark Sager
- Wisconsin Alzheimer's Disease Research Center, University of Wisconsin School of Medicine and Public Health, Madison, WI, 53705, USA
- Wisconsin Alzheimer's Institute, University of Wisconsin School of Medicine and Public Health, Madison, WI, 53705, USA
| | - Asenath LaRue
- Wisconsin Alzheimer's Disease Research Center, University of Wisconsin School of Medicine and Public Health, Madison, WI, 53705, USA
- Wisconsin Alzheimer's Institute, University of Wisconsin School of Medicine and Public Health, Madison, WI, 53705, USA
| | - Ozioma C Okonkwo
- Geriatric Research Education and Clinical Center, William S. Middleton Memorial Veterans Hospital, Madison, WI, 53705, USA.
- Wisconsin Alzheimer's Disease Research Center, University of Wisconsin School of Medicine and Public Health, Madison, WI, 53705, USA.
- Wisconsin Alzheimer's Institute, University of Wisconsin School of Medicine and Public Health, Madison, WI, 53705, USA.
- Department of Medicine and Alzheimer's Disease Research Center, University of Wisconsin School of Medicine and Public Health, Madison, WI, 53792, USA.
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12
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Okonkwo OC, Schultz SA, Oh JM, Larson J, Edwards D, Cook D, Koscik R, Gallagher CL, Dowling NM, Carlsson CM, Bendlin BB, LaRue A, Rowley HA, Christian BT, Asthana S, Hermann BP, Johnson SC, Sager MA. Physical activity attenuates age-related biomarker alterations in preclinical AD. Neurology 2014; 83:1753-60. [PMID: 25298312 DOI: 10.1212/wnl.0000000000000964] [Citation(s) in RCA: 152] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
OBJECTIVE To examine whether engagement in physical activity might favorably alter the age-dependent evolution of Alzheimer disease (AD)-related brain and cognitive changes in a cohort of at-risk, late-middle-aged adults. METHODS Three hundred seventeen enrollees in the Wisconsin Registry for Alzheimer's Prevention underwent T1 MRI; a subset also underwent (11)C-Pittsburgh compound B-PET (n = 186) and (18)F-fluorodeoxyglucose-PET (n = 152) imaging. Participants' responses on a self-report measure of current physical activity were used to classify them as either physically active or physically inactive based on American Heart Association guidelines. They also completed a comprehensive neuropsychological battery. Covariate-adjusted regression analyses were used to test whether the adverse effect of age on imaging and cognitive biomarkers was modified by physical activity. RESULTS There were significant age × physical activity interactions for β-amyloid burden (p = 0.014), glucose metabolism (p = 0.015), and hippocampal volume (p = 0.025) such that, with advancing age, physically active individuals exhibited a lesser degree of biomarker alterations compared with the physically inactive. Similar age × physical activity interactions were also observed on cognitive domains of Immediate Memory (p = 0.042) and Visuospatial Ability (p = 0.016). In addition, the physically active group had higher scores on Speed and Flexibility (p = 0.002) compared with the inactive group. CONCLUSIONS In a middle-aged, at-risk cohort, a physically active lifestyle is associated with an attenuation of the deleterious influence of age on key biomarkers of AD pathophysiology. However, because our observational, cross-sectional design cannot establish causality, randomized controlled trials/longitudinal studies will be necessary for determining whether midlife participation in structured physical exercise forestalls the development of AD and related disorders in later life.
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Affiliation(s)
- Ozioma C Okonkwo
- From the Geriatric Research Education and Clinical Center (O.C.O., S.A.S., J.M.O., J.L., D.C., C.L.G., C.M.C., B.B.B., S.A., S.C.J.), William S. Middleton Memorial VA Hospital, Madison WI; Wisconsin Alzheimer's Institute (O.C.O., D.E., R.K., B.B.B., A.L., S.A., B.P.H., S.C.J., M.A.S.), Wisconsin Alzheimer's Disease Research Center (O.C.O., S.A.S., J.M.O., J.L., D.E., C.L.G., N.M.D., C.M.C., B.B.B., H.A.R., B.T.C., S.A., B.P.H., S.C.J., M.A.S.), Departments of Kinesiology (D.E., D.C.), Neurology (C.L.G.), Biostatistics & Medical Informatics (N.M.D., B.P.H.), Radiology (H.A.R.), and Medical Physics (B.T.C.), University of Wisconsin School of Medicine and Public Health, Madison.
| | - Stephanie A Schultz
- From the Geriatric Research Education and Clinical Center (O.C.O., S.A.S., J.M.O., J.L., D.C., C.L.G., C.M.C., B.B.B., S.A., S.C.J.), William S. Middleton Memorial VA Hospital, Madison WI; Wisconsin Alzheimer's Institute (O.C.O., D.E., R.K., B.B.B., A.L., S.A., B.P.H., S.C.J., M.A.S.), Wisconsin Alzheimer's Disease Research Center (O.C.O., S.A.S., J.M.O., J.L., D.E., C.L.G., N.M.D., C.M.C., B.B.B., H.A.R., B.T.C., S.A., B.P.H., S.C.J., M.A.S.), Departments of Kinesiology (D.E., D.C.), Neurology (C.L.G.), Biostatistics & Medical Informatics (N.M.D., B.P.H.), Radiology (H.A.R.), and Medical Physics (B.T.C.), University of Wisconsin School of Medicine and Public Health, Madison
| | - Jennifer M Oh
- From the Geriatric Research Education and Clinical Center (O.C.O., S.A.S., J.M.O., J.L., D.C., C.L.G., C.M.C., B.B.B., S.A., S.C.J.), William S. Middleton Memorial VA Hospital, Madison WI; Wisconsin Alzheimer's Institute (O.C.O., D.E., R.K., B.B.B., A.L., S.A., B.P.H., S.C.J., M.A.S.), Wisconsin Alzheimer's Disease Research Center (O.C.O., S.A.S., J.M.O., J.L., D.E., C.L.G., N.M.D., C.M.C., B.B.B., H.A.R., B.T.C., S.A., B.P.H., S.C.J., M.A.S.), Departments of Kinesiology (D.E., D.C.), Neurology (C.L.G.), Biostatistics & Medical Informatics (N.M.D., B.P.H.), Radiology (H.A.R.), and Medical Physics (B.T.C.), University of Wisconsin School of Medicine and Public Health, Madison
| | - Jordan Larson
- From the Geriatric Research Education and Clinical Center (O.C.O., S.A.S., J.M.O., J.L., D.C., C.L.G., C.M.C., B.B.B., S.A., S.C.J.), William S. Middleton Memorial VA Hospital, Madison WI; Wisconsin Alzheimer's Institute (O.C.O., D.E., R.K., B.B.B., A.L., S.A., B.P.H., S.C.J., M.A.S.), Wisconsin Alzheimer's Disease Research Center (O.C.O., S.A.S., J.M.O., J.L., D.E., C.L.G., N.M.D., C.M.C., B.B.B., H.A.R., B.T.C., S.A., B.P.H., S.C.J., M.A.S.), Departments of Kinesiology (D.E., D.C.), Neurology (C.L.G.), Biostatistics & Medical Informatics (N.M.D., B.P.H.), Radiology (H.A.R.), and Medical Physics (B.T.C.), University of Wisconsin School of Medicine and Public Health, Madison
| | - Dorothy Edwards
- From the Geriatric Research Education and Clinical Center (O.C.O., S.A.S., J.M.O., J.L., D.C., C.L.G., C.M.C., B.B.B., S.A., S.C.J.), William S. Middleton Memorial VA Hospital, Madison WI; Wisconsin Alzheimer's Institute (O.C.O., D.E., R.K., B.B.B., A.L., S.A., B.P.H., S.C.J., M.A.S.), Wisconsin Alzheimer's Disease Research Center (O.C.O., S.A.S., J.M.O., J.L., D.E., C.L.G., N.M.D., C.M.C., B.B.B., H.A.R., B.T.C., S.A., B.P.H., S.C.J., M.A.S.), Departments of Kinesiology (D.E., D.C.), Neurology (C.L.G.), Biostatistics & Medical Informatics (N.M.D., B.P.H.), Radiology (H.A.R.), and Medical Physics (B.T.C.), University of Wisconsin School of Medicine and Public Health, Madison
| | - Dane Cook
- From the Geriatric Research Education and Clinical Center (O.C.O., S.A.S., J.M.O., J.L., D.C., C.L.G., C.M.C., B.B.B., S.A., S.C.J.), William S. Middleton Memorial VA Hospital, Madison WI; Wisconsin Alzheimer's Institute (O.C.O., D.E., R.K., B.B.B., A.L., S.A., B.P.H., S.C.J., M.A.S.), Wisconsin Alzheimer's Disease Research Center (O.C.O., S.A.S., J.M.O., J.L., D.E., C.L.G., N.M.D., C.M.C., B.B.B., H.A.R., B.T.C., S.A., B.P.H., S.C.J., M.A.S.), Departments of Kinesiology (D.E., D.C.), Neurology (C.L.G.), Biostatistics & Medical Informatics (N.M.D., B.P.H.), Radiology (H.A.R.), and Medical Physics (B.T.C.), University of Wisconsin School of Medicine and Public Health, Madison
| | - Rebecca Koscik
- From the Geriatric Research Education and Clinical Center (O.C.O., S.A.S., J.M.O., J.L., D.C., C.L.G., C.M.C., B.B.B., S.A., S.C.J.), William S. Middleton Memorial VA Hospital, Madison WI; Wisconsin Alzheimer's Institute (O.C.O., D.E., R.K., B.B.B., A.L., S.A., B.P.H., S.C.J., M.A.S.), Wisconsin Alzheimer's Disease Research Center (O.C.O., S.A.S., J.M.O., J.L., D.E., C.L.G., N.M.D., C.M.C., B.B.B., H.A.R., B.T.C., S.A., B.P.H., S.C.J., M.A.S.), Departments of Kinesiology (D.E., D.C.), Neurology (C.L.G.), Biostatistics & Medical Informatics (N.M.D., B.P.H.), Radiology (H.A.R.), and Medical Physics (B.T.C.), University of Wisconsin School of Medicine and Public Health, Madison
| | - Catherine L Gallagher
- From the Geriatric Research Education and Clinical Center (O.C.O., S.A.S., J.M.O., J.L., D.C., C.L.G., C.M.C., B.B.B., S.A., S.C.J.), William S. Middleton Memorial VA Hospital, Madison WI; Wisconsin Alzheimer's Institute (O.C.O., D.E., R.K., B.B.B., A.L., S.A., B.P.H., S.C.J., M.A.S.), Wisconsin Alzheimer's Disease Research Center (O.C.O., S.A.S., J.M.O., J.L., D.E., C.L.G., N.M.D., C.M.C., B.B.B., H.A.R., B.T.C., S.A., B.P.H., S.C.J., M.A.S.), Departments of Kinesiology (D.E., D.C.), Neurology (C.L.G.), Biostatistics & Medical Informatics (N.M.D., B.P.H.), Radiology (H.A.R.), and Medical Physics (B.T.C.), University of Wisconsin School of Medicine and Public Health, Madison
| | - N M Dowling
- From the Geriatric Research Education and Clinical Center (O.C.O., S.A.S., J.M.O., J.L., D.C., C.L.G., C.M.C., B.B.B., S.A., S.C.J.), William S. Middleton Memorial VA Hospital, Madison WI; Wisconsin Alzheimer's Institute (O.C.O., D.E., R.K., B.B.B., A.L., S.A., B.P.H., S.C.J., M.A.S.), Wisconsin Alzheimer's Disease Research Center (O.C.O., S.A.S., J.M.O., J.L., D.E., C.L.G., N.M.D., C.M.C., B.B.B., H.A.R., B.T.C., S.A., B.P.H., S.C.J., M.A.S.), Departments of Kinesiology (D.E., D.C.), Neurology (C.L.G.), Biostatistics & Medical Informatics (N.M.D., B.P.H.), Radiology (H.A.R.), and Medical Physics (B.T.C.), University of Wisconsin School of Medicine and Public Health, Madison
| | - Cynthia M Carlsson
- From the Geriatric Research Education and Clinical Center (O.C.O., S.A.S., J.M.O., J.L., D.C., C.L.G., C.M.C., B.B.B., S.A., S.C.J.), William S. Middleton Memorial VA Hospital, Madison WI; Wisconsin Alzheimer's Institute (O.C.O., D.E., R.K., B.B.B., A.L., S.A., B.P.H., S.C.J., M.A.S.), Wisconsin Alzheimer's Disease Research Center (O.C.O., S.A.S., J.M.O., J.L., D.E., C.L.G., N.M.D., C.M.C., B.B.B., H.A.R., B.T.C., S.A., B.P.H., S.C.J., M.A.S.), Departments of Kinesiology (D.E., D.C.), Neurology (C.L.G.), Biostatistics & Medical Informatics (N.M.D., B.P.H.), Radiology (H.A.R.), and Medical Physics (B.T.C.), University of Wisconsin School of Medicine and Public Health, Madison
| | - Barbara B Bendlin
- From the Geriatric Research Education and Clinical Center (O.C.O., S.A.S., J.M.O., J.L., D.C., C.L.G., C.M.C., B.B.B., S.A., S.C.J.), William S. Middleton Memorial VA Hospital, Madison WI; Wisconsin Alzheimer's Institute (O.C.O., D.E., R.K., B.B.B., A.L., S.A., B.P.H., S.C.J., M.A.S.), Wisconsin Alzheimer's Disease Research Center (O.C.O., S.A.S., J.M.O., J.L., D.E., C.L.G., N.M.D., C.M.C., B.B.B., H.A.R., B.T.C., S.A., B.P.H., S.C.J., M.A.S.), Departments of Kinesiology (D.E., D.C.), Neurology (C.L.G.), Biostatistics & Medical Informatics (N.M.D., B.P.H.), Radiology (H.A.R.), and Medical Physics (B.T.C.), University of Wisconsin School of Medicine and Public Health, Madison
| | - Asenath LaRue
- From the Geriatric Research Education and Clinical Center (O.C.O., S.A.S., J.M.O., J.L., D.C., C.L.G., C.M.C., B.B.B., S.A., S.C.J.), William S. Middleton Memorial VA Hospital, Madison WI; Wisconsin Alzheimer's Institute (O.C.O., D.E., R.K., B.B.B., A.L., S.A., B.P.H., S.C.J., M.A.S.), Wisconsin Alzheimer's Disease Research Center (O.C.O., S.A.S., J.M.O., J.L., D.E., C.L.G., N.M.D., C.M.C., B.B.B., H.A.R., B.T.C., S.A., B.P.H., S.C.J., M.A.S.), Departments of Kinesiology (D.E., D.C.), Neurology (C.L.G.), Biostatistics & Medical Informatics (N.M.D., B.P.H.), Radiology (H.A.R.), and Medical Physics (B.T.C.), University of Wisconsin School of Medicine and Public Health, Madison
| | - Howard A Rowley
- From the Geriatric Research Education and Clinical Center (O.C.O., S.A.S., J.M.O., J.L., D.C., C.L.G., C.M.C., B.B.B., S.A., S.C.J.), William S. Middleton Memorial VA Hospital, Madison WI; Wisconsin Alzheimer's Institute (O.C.O., D.E., R.K., B.B.B., A.L., S.A., B.P.H., S.C.J., M.A.S.), Wisconsin Alzheimer's Disease Research Center (O.C.O., S.A.S., J.M.O., J.L., D.E., C.L.G., N.M.D., C.M.C., B.B.B., H.A.R., B.T.C., S.A., B.P.H., S.C.J., M.A.S.), Departments of Kinesiology (D.E., D.C.), Neurology (C.L.G.), Biostatistics & Medical Informatics (N.M.D., B.P.H.), Radiology (H.A.R.), and Medical Physics (B.T.C.), University of Wisconsin School of Medicine and Public Health, Madison
| | - Brad T Christian
- From the Geriatric Research Education and Clinical Center (O.C.O., S.A.S., J.M.O., J.L., D.C., C.L.G., C.M.C., B.B.B., S.A., S.C.J.), William S. Middleton Memorial VA Hospital, Madison WI; Wisconsin Alzheimer's Institute (O.C.O., D.E., R.K., B.B.B., A.L., S.A., B.P.H., S.C.J., M.A.S.), Wisconsin Alzheimer's Disease Research Center (O.C.O., S.A.S., J.M.O., J.L., D.E., C.L.G., N.M.D., C.M.C., B.B.B., H.A.R., B.T.C., S.A., B.P.H., S.C.J., M.A.S.), Departments of Kinesiology (D.E., D.C.), Neurology (C.L.G.), Biostatistics & Medical Informatics (N.M.D., B.P.H.), Radiology (H.A.R.), and Medical Physics (B.T.C.), University of Wisconsin School of Medicine and Public Health, Madison
| | - Sanjay Asthana
- From the Geriatric Research Education and Clinical Center (O.C.O., S.A.S., J.M.O., J.L., D.C., C.L.G., C.M.C., B.B.B., S.A., S.C.J.), William S. Middleton Memorial VA Hospital, Madison WI; Wisconsin Alzheimer's Institute (O.C.O., D.E., R.K., B.B.B., A.L., S.A., B.P.H., S.C.J., M.A.S.), Wisconsin Alzheimer's Disease Research Center (O.C.O., S.A.S., J.M.O., J.L., D.E., C.L.G., N.M.D., C.M.C., B.B.B., H.A.R., B.T.C., S.A., B.P.H., S.C.J., M.A.S.), Departments of Kinesiology (D.E., D.C.), Neurology (C.L.G.), Biostatistics & Medical Informatics (N.M.D., B.P.H.), Radiology (H.A.R.), and Medical Physics (B.T.C.), University of Wisconsin School of Medicine and Public Health, Madison
| | - Bruce P Hermann
- From the Geriatric Research Education and Clinical Center (O.C.O., S.A.S., J.M.O., J.L., D.C., C.L.G., C.M.C., B.B.B., S.A., S.C.J.), William S. Middleton Memorial VA Hospital, Madison WI; Wisconsin Alzheimer's Institute (O.C.O., D.E., R.K., B.B.B., A.L., S.A., B.P.H., S.C.J., M.A.S.), Wisconsin Alzheimer's Disease Research Center (O.C.O., S.A.S., J.M.O., J.L., D.E., C.L.G., N.M.D., C.M.C., B.B.B., H.A.R., B.T.C., S.A., B.P.H., S.C.J., M.A.S.), Departments of Kinesiology (D.E., D.C.), Neurology (C.L.G.), Biostatistics & Medical Informatics (N.M.D., B.P.H.), Radiology (H.A.R.), and Medical Physics (B.T.C.), University of Wisconsin School of Medicine and Public Health, Madison
| | - Sterling C Johnson
- From the Geriatric Research Education and Clinical Center (O.C.O., S.A.S., J.M.O., J.L., D.C., C.L.G., C.M.C., B.B.B., S.A., S.C.J.), William S. Middleton Memorial VA Hospital, Madison WI; Wisconsin Alzheimer's Institute (O.C.O., D.E., R.K., B.B.B., A.L., S.A., B.P.H., S.C.J., M.A.S.), Wisconsin Alzheimer's Disease Research Center (O.C.O., S.A.S., J.M.O., J.L., D.E., C.L.G., N.M.D., C.M.C., B.B.B., H.A.R., B.T.C., S.A., B.P.H., S.C.J., M.A.S.), Departments of Kinesiology (D.E., D.C.), Neurology (C.L.G.), Biostatistics & Medical Informatics (N.M.D., B.P.H.), Radiology (H.A.R.), and Medical Physics (B.T.C.), University of Wisconsin School of Medicine and Public Health, Madison
| | - Mark A Sager
- From the Geriatric Research Education and Clinical Center (O.C.O., S.A.S., J.M.O., J.L., D.C., C.L.G., C.M.C., B.B.B., S.A., S.C.J.), William S. Middleton Memorial VA Hospital, Madison WI; Wisconsin Alzheimer's Institute (O.C.O., D.E., R.K., B.B.B., A.L., S.A., B.P.H., S.C.J., M.A.S.), Wisconsin Alzheimer's Disease Research Center (O.C.O., S.A.S., J.M.O., J.L., D.E., C.L.G., N.M.D., C.M.C., B.B.B., H.A.R., B.T.C., S.A., B.P.H., S.C.J., M.A.S.), Departments of Kinesiology (D.E., D.C.), Neurology (C.L.G.), Biostatistics & Medical Informatics (N.M.D., B.P.H.), Radiology (H.A.R.), and Medical Physics (B.T.C.), University of Wisconsin School of Medicine and Public Health, Madison
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Boots EA, Oh J, Schultz S, Larson J, Edwards DF, Cook D, Koscik R, Dowling M, Gallagher C, Carlsson C, Rowley H, Bendlin BB, LaRue A, Asthana S, Hermann B, Johnson S, Sager MA, Okonkwo O. IC‐P‐121: CARDIORESPIRATORY FITNESS IS ASSOCIATED WITH BRAIN STRUCTURE, COGNITION, AND MOOD IN A MIDDLE‐AGED COHORT AT RISK FOR ALZHEIMER'S DISEASE. Alzheimers Dement 2014. [DOI: 10.1016/j.jalz.2014.05.127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Elizabeth Anne Boots
- Wisconsin Alzheimer's Disease Research Center, University of Wisconsin‐MadisonMadisonWisconsinUnited States
| | - Jennifer Oh
- Wisconsin Alzheimer's Disease Research CenterMadisonWisconsinUnited States
| | - Stephanie Schultz
- Wisconsin Alzheimer's Disease Research CenterMadisonWisconsinUnited States
| | - Jordan Larson
- Wisconsin Alzheimer's Disease Research CenterMadisonWisconsinUnited States
| | | | - Dane Cook
- University of Wisconsin ‐ MadisonMadisonWisconsinUnited States
| | - Rebecca Koscik
- University of Wisconsin ‐ MadisonMadisonWisconsinUnited States
| | | | | | - Cynthia Carlsson
- University of Wisconsin School of Medicine and Public HealthMadisonWisconsinUnited States
| | - Howard Rowley
- Wisconsin Alzheimer's Disease Research CenterMadisonWisconsinUnited States
| | | | - Asenath LaRue
- University of Wisconsin ‐ MadisonMadisonWisconsinUnited States
| | - Sanjay Asthana
- UW Section of Geriatrics/GerontologyMadisonWisconsinUnited States
| | - Bruce Hermann
- University of Wisconsin‐MadisonMadisonWisconsinUnited States
| | | | - Mark A. Sager
- University of Wisconsin School of MedicineMadisonWisconsinUnited States
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Okonkwo O, Oh J, Schultz S, Larson J, Edwards DF, Cook D, Koscik R, Dowling M, Gallagher C, Carlsson C, Bendlin BB, LaRue A, Rowley H, Christian B, Asthana S, Hermann B, Johnson S, Sager MA. IC‐01‐01: IMAGING OF TAU PATHOLOGY IN PATIENTS WITH NON‐ALZHEIMER'S DISEASE TAUOPATHIES BY [11C]PBB3‐PET. Alzheimers Dement 2014. [DOI: 10.1016/j.jalz.2014.04.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Affiliation(s)
| | - Jennifer Oh
- Wisconsin Alzheimer's Disease Research CenterMadisonWisconsinUnited States
| | - Stephanie Schultz
- Wisconsin Alzheimer's Disease Research CenterMadisonWisconsinUnited States
| | - Jordan Larson
- Wisconsin Alzheimer's Disease Research CenterMadisonWisconsinUnited States
| | | | - Dane Cook
- UW MadisonMadisonWisconsinUnited States
| | - Rebecca Koscik
- University of Wisconsin‐MadisonMadisonWisconsinUnited States
| | - Maritza Dowling
- University of Wisconsin‐MadisonMiddletonWisconsinUnited States
| | | | - Cynthia Carlsson
- University of Wisconsin School of Medicine and Public HealthMadisonWisconsinUnited States
| | | | - Asenath LaRue
- University of Wisconsin‐MadisonMadisonWisconsinUnited States
| | - Howard Rowley
- Wisconsin Alzheimer's Disease Research CenterMadisonWisconsinUnited States
| | | | - Sanjay Asthana
- UW Section of Geriatrics/GerontologyMadisonWisconsinUnited States
| | | | | | - Mark A. Sager
- University of Wisconsin School of MedicineMadisonWisconsinUnited States
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Larson J, Oh J, Koscik R, Dowling M, Gallagher C, Carlsson C, Rowley H, Bendlin BB, Asthana S, Hermann B, Johnson S, Sager MA, LaRue A, Okonkwo O. IC‐01‐03: PARTICIPATION IN COGNITIVELY STIMULATING ACTIVITIES IS ASSOCIATED WITH BRAIN STRUCTURE AND COGNITIVE FUNCTION IN PRECLINICAL ALZHEIMER'S DISEASE. Alzheimers Dement 2014. [DOI: 10.1016/j.jalz.2014.04.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jordan Larson
- Wisconsin Alzheimer's Disease Research CenterMadisonWisconsinUnited States
| | - Jennifer Oh
- Wisconsin Alzheimer's Disease Research CenterMadisonWisconsinUnited States
| | - Rebecca Koscik
- University of Wisconsin‐MadisonMadisonWisconsinUnited States
| | - Maritza Dowling
- University of Wisconsin‐MadisonMiddletonWisconsinUnited States
| | | | - Cynthia Carlsson
- University of Wisconsin School of Medicine and Public HealthMadisonWisconsinUnited States
| | - Howard Rowley
- Wisconsin Alzheimer's Disease Research CenterMadisonWisconsinUnited States
| | | | - Sanjay Asthana
- UW Section of Geriatrics/GerontologyMadisonWisconsinUnited States
| | | | | | - Mark A. Sager
- University of Wisconsin School of MedicineMadisonWisconsinUnited States
| | - Asenath LaRue
- University of Wisconsin‐MadisonMadisonWisconsinUnited States
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Schultz S, Oh J, Koscik R, Dowling NM, Gallagher C, Carlsson C, Bendlin BB, LaRue A, Hermann B, Rowley H, Asthana S, Sager MA, Johnson S, Okonkwo O. IC‐P‐078: SUBJECTIVE MEMORY COMPLAINTS, CORTICAL THINNING, AND COGNITIVE DYSFUNCTION IN MIDDLE‐AGED ADULTS AT RISK FOR AD: FINDINGS FROM THE WISCONSIN REGISTRY FOR ALZHEIMER'S PREVENTION. Alzheimers Dement 2014. [DOI: 10.1016/j.jalz.2014.05.083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Stephanie Schultz
- Wisconsin Alzheimer's Disease Research CenterMadisonWisconsinUnited States
| | - Jennifer Oh
- Wisconsin Alzheimer's Disease Research CenterMadisonWisconsinUnited States
| | - Rebecca Koscik
- University of Wisconsin ‐ MadisonMadisonWisconsinUnited States
| | | | | | - Cynthia Carlsson
- University of Wisconsin School of Medicine and Public HealthMadisonWisconsinUnited States
| | | | - Asenath LaRue
- University of Wisconsin ‐ MadisonMadisonWisconsinUnited States
| | - Bruce Hermann
- University of Wisconsin‐MadisonMadisonWisconsinUnited States
| | - Howard Rowley
- Wisconsin Alzheimer's Disease Research CenterMadisonWisconsinUnited States
| | - Sanjay Asthana
- UW Section of Geriatrics/GerontologyMadisonWisconsinUnited States
| | - Mark A. Sager
- University of Wisconsin School of MedicineMadisonWisconsinUnited States
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Bendlin B, Birdsill A, Willette A, Johnson S, Christian B, Oh J, Hermann B, Jonaitis E, Koscik R, LaRue A, Asthana S, Sager M. P2–171: Midlife insulin resistance is associated with hypometabolism on FDG‐PET. Alzheimers Dement 2013. [DOI: 10.1016/j.jalz.2013.05.816] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Barbara Bendlin
- University of Wisconsin‐Madison Madison Wisconsin United States
| | - Alex Birdsill
- University of Wisconsin‐Madison Madison Wisconsin United States
| | | | - Sterling Johnson
- Wm. S. Middleton Veterans Memorial Hospital; GRECC Madison Wisconsin United States
| | - Brad Christian
- University of Wisconsin Madison Madison Wisconsin United States
| | - Jennifer Oh
- University of Wisconsin‐Madison Madison Wisconsin United States
| | - Bruce Hermann
- University of Wisconsin‐Madison Madison Wisconsin United States
| | - Erin Jonaitis
- University of Wisconsin ‐ Madison Madison Wisconsin United States
| | - Rebecca Koscik
- University of Wisconsin ‐ Madison Madison Wisconsin United States
| | - Asenath LaRue
- University of Wisconsin ‐ Madison Madison Wisconsin United States
| | - Sanjay Asthana
- Wm. S. Middleton Veterans Memorial Hospital; GRECC Madison Wisconsin United States
| | - Mark Sager
- University of Wisconsin‐Madison Madison Wisconsin United States
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Koscik R, LaRue A, Jonaitis E, Hermann B, Rowley J, Sager M. P3–155: Examining the CERAD Memory Performance Index in the Wisconsin Registry for Alzheimer's Prevention. Alzheimers Dement 2013. [DOI: 10.1016/j.jalz.2013.05.1227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Affiliation(s)
- Rebecca Koscik
- University of Wisconsin‐Madison Madison Wisconsin United States
| | - Asenath LaRue
- University of Wisconsin‐Madison Madison Wisconsin United States
| | - Erin Jonaitis
- University of Wisconsin‐Madison Madison Wisconsin United States
| | | | - Janet Rowley
- University of Wisconsin, Madison Madison Wisconsin United States
| | - Mark Sager
- University of Wisconsin School of Medicine Madison Wisconsin United States
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Jonaitis E, Okonkwo O, Edwards D, Koscik R, Oh J, LaRue A, Bendlin B, Johnson S, Sager M. P3–191: Exercise ameliorates age‐associated hippocampal atrophy in at‐risk adults: Evidence from the Wisconsin Registry for Alzheimer's Prevention. Alzheimers Dement 2013. [DOI: 10.1016/j.jalz.2013.05.1263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Erin Jonaitis
- Wisconsin Alzheimer's Institute Madison Wisconsin United States
| | | | - Dorothy Edwards
- University of Wisconsin Madison Madison Wisconsin United States
| | - Rebecca Koscik
- University of Wisconsin‐Madison Madison Wisconsin United States
| | - Jennifer Oh
- Wisconsin Alzheimer's Disease Research Center Madison Wisconsin United States
| | - Asenath LaRue
- University of Wisconsin‐Madison Madison Wisconsin United States
| | - Barbara Bendlin
- University of Wisconsin‐Madison Madison Wisconsin United States
| | | | - Mark Sager
- University of Wisconsin School of Medicine Madison Wisconsin United States
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Mueller K, Koscik R, LaRue A, Jonaitis E, Riedeman S, Hermann B, Sager M. P2–355: Reasons to participate in Alzheimer's disease research: Varying perspectives of participants from the Wisconsin Registry for Alzheimer's Prevention. Alzheimers Dement 2013. [DOI: 10.1016/j.jalz.2013.05.1004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
| | - Rebecca Koscik
- University of Wisconsin ‐ Madison Madison Wisconsin United States
| | - Asenath LaRue
- University of Wisconsin ‐ Madison Madison Wisconsin United States
| | - Erin Jonaitis
- University of Wisconsin ‐ Madison Madison Wisconsin United States
| | - Sarah Riedeman
- University of Wisconsin ‐ Madison Madison Wisconsin United States
| | | | - Mark Sager
- University of Wisconsin School of Medicine Madison Wisconsin United States
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Engelman C, Koscik R, Jonaitis E, Hermann B, LaRue A, Sager M. P4‐095: Association between variants in newly discovered Alzheimer's susceptibility genes and longitudinal cognitive performance in late middle‐aged adults: The WRAP cohort. Alzheimers Dement 2012. [DOI: 10.1016/j.jalz.2012.05.1797] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
| | - Rebecca Koscik
- University of Wisconsin‐MadisonMadisonWisconsinUnited States
| | - Erin Jonaitis
- University of Wisconsin‐MadisonMadisonWisconsinUnited States
| | - Bruce Hermann
- University of Wisconsin‐MadisonMadisonWisconsinUnited States
| | - Asenath LaRue
- University of Wisconsin‐MadisonMadisonWisconsinUnited States
| | - Mark Sager
- University of Wisconsin‐MadisonMadisonWisconsinUnited States
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Okonkwo OC, Xu G, Dowling NM, Bendlin BB, Larue A, Hermann BP, Koscik R, Jonaitis E, Rowley HA, Carlsson CM, Asthana S, Sager MA, Johnson SC. Family history of Alzheimer disease predicts hippocampal atrophy in healthy middle-aged adults. Neurology 2012; 78:1769-76. [PMID: 22592366 DOI: 10.1212/wnl.0b013e3182583047] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
OBJECTIVE To evaluate the longitudinal influence of family history (FH) of Alzheimer disease (AD) and apolipoprotein E ε4 allele (APOE4) on brain atrophy and cognitive decline over 4 years among asymptomatic middle-aged individuals. METHODS Participants were cognitively healthy adults with (FH+) (n = 60) and without (FH-) (n = 48) a FH of AD (mean age at baseline 54 years) enrolled in the Wisconsin Registry for Alzheimer's Prevention. They underwent APOE genotyping, cognitive testing, and an MRI scan at baseline and 4 years later. A covariate-adjusted voxel-based analysis interrogated gray matter (GM) modulated probability maps at the 4-year follow-up visit as a function of FH and APOE4. We also examined the influence of parent of origin on GM atrophy. Parallel analyses investigated the effects of FH and APOE4 on cognitive decline. RESULTS Neither FH nor APOE4 had an effect on regional GM or cognition at baseline. Longitudinally, a FH × APOE4 interaction was found in the right posterior hippocampus, which was driven by a significant difference between the FH+ and FH- subjects who were APOE4-. In addition, a significant FH main effect was observed in the left posterior hippocampus. No significant APOE4 main effects were detected. Persons with a maternal history of AD were just as likely as those with a paternal history of AD to experience posterior hippocampal atrophy. There was no longitudinal decline in cognition within the cohort. CONCLUSION Over a 4-year interval, asymptomatic middle-aged adults with FH of AD exhibit significant atrophy in the posterior hippocampi in the absence of measurable cognitive changes. This result provides further evidence that detectable disease-related neuroanatomic changes do occur early in the AD pathologic cascade.
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Affiliation(s)
- O C Okonkwo
- Geriatric Research Education and Clinical Center, William S. Middleton Memorial Veterans Hospital, Madison, WI, USA
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Edwards D, Koscik R, Jonatis E, LaRue A, Hermann B, Green‐Harris G, Soryal S, Sager M. P1‐227: Do African Americans have the Same TOMM40 Distribution as Caucasians? Preliminary Results from Wisconsin Registry for Alzheimer's Prevention (WRAP). Alzheimers Dement 2011. [DOI: 10.1016/j.jalz.2011.05.507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- Dorothy Edwards
- University of Wisconsin School of MedicineMadisonWisconsinUnited States
| | - Rebecca Koscik
- University of Wisconsin School of MedicineMadisonWisconsinUnited States
| | - Erin Jonatis
- University of Wisconsin School of MedicineMadisonWisconsinUnited States
| | - Asenath LaRue
- University of Wisconsin School of MedicineMadisonWisconsinUnited States
| | - Bruce Hermann
- University of Wisconsin School of MedicineMadisonWisconsinUnited States
| | | | - Soryal Soryal
- Aurora Sinai HospitalMilwaukeeWisconsinUnited States
| | - Mark Sager
- University of Wisconsin School of MedicineMadisonWisconsinUnited States
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Sager M, Koscik R, Jonaitis E, La Rue A, Carlsson C, Asthana S, Xu G, Johnson S, Bendlin B, Soryal S, Hermann B. P1‐259: Relationship between TOMM40 and APOE Genotypes in the Wisconsin Registry for Alzheimer's Prevention (WRAP). Alzheimers Dement 2011. [DOI: 10.1016/j.jalz.2011.05.539] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Affiliation(s)
- Mark Sager
- University of WisconsinMadisonWisconsinUnited States
| | - Rebecca Koscik
- Wisconsin Alzheimer's InstituteMadisonWisconsinUnited States
| | - Erin Jonaitis
- Wisconsin Alzheimer's InstituteMadisonWisconsinUnited States
| | - Asenath La Rue
- Wisconsin Alzheimer's InstituteMadisonWisconsinUnited States
| | - Cynthia Carlsson
- UW School of Medicine and Public HealthMadisonWisconsinUnited States
| | - Sanjay Asthana
- UW School of Medicine and Public HealthMadisonWisconsinUnited States
| | - Guofan Xu
- UW School of Medicine and Public HealthMadisonWisconsinUnited States
| | - Sterling Johnson
- UW School of Medicine and Public HealthMadisonWisconsinUnited States
| | - Barbara Bendlin
- UW School of Medicine and Public HealthMadisonWisconsinUnited States
| | - Soryal Soryal
- Sinai Samaritan Medical CenterMilwaukeeWisconsinUnited States
| | - Bruce Hermann
- UW School of Medicine and Public HealthMadisonWisconsinUnited States
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Sager MA, La Rue A, Johnson SC, Saunders AM, Roses AD, Koscik R, Jonaitis E, Lutz MW, Asthana S, Green RC, Hermann BP. P4‐050: TOMM40 Variable Length Polymorphism is Associated With Memory Function in Asymptomatic Middle‐aged Persons. Alzheimers Dement 2010. [DOI: 10.1016/j.jalz.2010.08.110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Lane NJ, Baker LD, Gleason CE, Koscik R, Cholerton B, Craft S, Slattery AM, Ohrt TL, Asthana S. P1-425 Raloxifene enhances cognitive function for postmenopausal women with Alzheimer's disease. Neurobiol Aging 2004. [DOI: 10.1016/s0197-4580(04)80737-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Gregg RG, Simantel A, Farrell PM, Koscik R, Kosorok MR, Laxova A, Laessig R, Hoffman G, Hassemer D, Mischler EH, Splaingard M. Newborn screening for cystic fibrosis in Wisconsin: comparison of biochemical and molecular methods. Pediatrics 1997; 99:819-24. [PMID: 9164776 DOI: 10.1542/peds.99.6.819] [Citation(s) in RCA: 108] [Impact Index Per Article: 4.0] [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: 02/04/2023] Open
Abstract
OBJECTIVES To evaluate neonatal screening for cystic fibrosis (CF), including study of the screening procedures and characteristics of false-positive infants, over the past 10 years in Wisconsin. An important objective evolving from the original design has been to compare use of a single-tier immunoreactive trypsinogen (IRT) screening method with that of a two-tier method using IRT and analyses of samples for the most common cystic fibrosis transmembrane regulator (CFTR) (DeltaF508) mutation. We also examined the benefit of including up to 10 additional CFTR mutations in the screening protocol. METHODS From 1985 to 1994, using either the IRT or IRT/DNA protocol, 220 862 and 104 308 neonates, respectively, were screened for CF. For the IRT protocol, neonates with an IRT >/=180 ng/mL were considered positive, and the standard sweat chloride test was administered to determine CF status. For the IRT/DNA protocol, samples from the original dried-blood specimen on the Guthrie card of neonates with an IRT >/=110 ng/mL were tested for the presence of the DeltaF508 CFTR allele, and if the DNA test revealed one or two DeltaF508 alleles, a sweat test was obtained. RESULTS Both screening procedures had very high specificity. The sensitivity tended to be higher with the IRT/DNA protocol, but the differences were not statistically significant. The positive predictive value of the IRT/DNA screening protocol was 15.2% compared with 6.4% if the same samples had been screened by the IRT method. Assessment of the false-positive IRT/DNA population revealed that the two-tier method eliminates the disproportionate number of infants with low Apgar scores and also the high prevalence of African-Americans identified previously in our study of newborns with high IRT levels. We found that 55% of DNA-positive CF infants were homozygous for DeltaF508 and 40% had one DeltaF508 allele. Adding analyses for 10 more CFTR mutations has only a small effect on the sensitivity but is likely to add significantly to the cost of screening. CONCLUSIONS Advantages of the IRT/DNA protocol over IRT analysis include improved positive predictive value, reduction of false-positive infants, and more rapid diagnosis with elimination of recall specimens.
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Affiliation(s)
- R G Gregg
- Waisman Center for Mental Retardation and Human Development, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
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Abstract
Essential fatty acid deficiency as a result of inadequate linoleic acid impairs growth in healthy infants and is common in infants with malabsorption due to cystic fibrosis (CF). We investigated the effect of dietary linoleic acid intake on the growth of infants with CF. In this study, predigested formula preparations A and B, with linoleic acid contents of 12% and 7% of energy, respectively, were fed before and after 1989 to infants enrolled in the evaluation and treatment protocol of the Wisconsin CF Neonatal Screening Project. Outcome was assessed from height-for-age (HAZ) and weight-for-age (WAZ) Z scores on follow-up exams during the first year. Baseline characteristics did not differ significantly between groups A (n = 43) and B (n = 33). At diagnosis, 53% of the enrolled infants (n = 76) showed low plasma linoleic acid concentrations and 22% had a high ratio of triene to tetraene. After correcting for the effect of potentially confounding variables, we found that HAZ (by .27, P < 0.05) and WAZ (by 0.26, P = 0.081) were higher in group A than in group B. This occurred despite a significantly higher energy intake in group B. This difference was most pronounced between 6 and 9 mo of age. Our results suggest that a high linoleic acid content in formula benefits infants with CF because it optimizes nutrition, growth, and feeding efficiency.
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Affiliation(s)
- A W van Egmond
- Department of Pediatrics, University of Wisconsin Clinical Science Center, Madison, USA
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30
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Contreras M, Hariharan N, Lewandoski JR, Ciesielski W, Koscik R, Zimmerman JJ. Bronchoalveolar oxyradical inflammatory elements herald bronchopulmonary dysplasia. Crit Care Med 1996; 24:29-37. [PMID: 8565534 DOI: 10.1097/00003246-199601000-00008] [Citation(s) in RCA: 48] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
OBJECTIVES To quantify oxyradical inflammatory markers in serial endotracheal tube aspirates obtained from premature neonates at risk for developing bronchopulmonary dysplasia, and to correlate these parameters with clinical manifestations of the disease. DESIGN Prospective cohort study. SETTING Tertiary neonatal intensive care unit. PATIENTS Twenty-eight intubated, premature infants, with 15 infants displaying simple respiratory distress syndrome and 13 infants eventually developing bronchopulmonary dysplasia. INTERVENTIONS Endotracheal tube aspirates were collected and clinical severity scores were calculated longitudinally from an inception cohort during the first week of life. Diagnosis of bronchopulmonary dysplasia by standard criteria was recorded at 30 days of life. Various biochemical analyses related to pulmonary oxyradical stress were determined on endotracheal tube aspirates and were normalized according to the magnitude of serum/aspirate urea ratios. The demographic, illness severity, and biochemical characteristics of infants with simple respiratory distress syndrome and those characteristics of infants developing bronchopulmonary dysplasia were evaluated by masked comparison. MEASUREMENTS AND MAIN RESULTS Populations of respiratory distress syndrome and bronchopulmonary dysplasia infants could be differentiated during the first week of life by means of the following parameters: gestational age; birth weight; Score of Neonatal Acute Physiology; Neonatal Therapeutic Intervention Scoring System; epithelial lining fluid leukocytes; elastase; myeloperoxidase; xanthine oxidase and catalase enzyme activities; and total sulfhydryls. CONCLUSIONS Infants with simple respiratory distress syndrome could be segregated from those infants who developed bronchopulmonary dysplasia by the magnitude of the epithelial lining fluid oxyradical inflammation markers. While infants developing bronchopulmonary dysplasia typically exhibited increased concentrations of these markers during the first week of life, those infants with simple respiratory distress syndrome displayed low, uniform, or decreasing values of these markers over this interval. Infants developing bronchopulmonary dysplasia demonstrate an early pulmonary inflammatory response, and one key aspect of this response involves various oxyradical-generating systems.
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Affiliation(s)
- M Contreras
- Division of Critical Care Medicine, Children's Hospital, University of Wisconsin, Madison 53792-4108, USA
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31
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Abstract
Despite gratifying immediate results, significant recoarctation at follow-up has been observed after balloon angioplasty of native aortic coarctation. Risk factors for such recurrences have been identified in one of our previous studies. In this study we examined the value of these risk factors in the prediction of recoarctation after balloon angioplasty. During a 6-year period ending in September 1993, 37 infants and children aged 2 days to 15 years underwent balloon angioplasty of native coarctation with resultant reduction in coarctation gradient from 45 +/- 17 (mean +/- SD) to 12 +/- 9 mm Hg (p < 0.001). On the basis of results of 4- to 48-month follow-up catheterization in 30 children, recoarctation developed in 8 (27%) children. The data from these patients were scrutinized to identify subjects that exhibited the previously determined risk factors, namely age < 12 months, size of aortic isthmus less than two thirds the size of the ascending aorta, coarcted aortic segment < 3.5 mm before angioplasty, and coarcted segment < 6.0 mm after angioplasty. Then, thirty variables (Table I) were examined by logistic regression to identify factors responsible for recoarctation; the data from both study groups were combined for this analysis. The prevalence of recoarctation in each subgroup with a given number of risk factors is similar (p < 0.1) to that observed in the initial study identifying the risk factors. In addition, logistic regression identified age (p = 0.014), size of isthmus (p = 0.006), preangioplasty coarcted segment (p = 0.01), and postangioplasty coarcted segment (p = 0.006) as risk factors.(ABSTRACT TRUNCATED AT 250 WORDS)
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Affiliation(s)
- P S Rao
- Department of Pediatrics, University of Wisconsin Medical School, Madison, USA
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32
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Abstract
Transcatheter occlusion of ostium secundum atrial septal defects (ASD) with the buttoned device has been shown to be feasible, effective, and safe. The final decision to implant the device is largely based on the balloon sizing of the ASD during cardiac catheterization. Only subjective criteria of ASD size and the septal rims on echocardiography have been used before catheterization, balloon sizing, and transcatheter occlusion. The purpose of this study was to determine whether objective echo criteria could be developed to predict successful occlusion of the ASD. During a 46-month period ending August 1992, 29 children with secundum ASD were evaluated for transcatheter occlusion. The device was successfully implanted in 15 (group A); in the remaining 14 children, this procedure could not be performed (group B). Preocclusion echos were analyzed by independent investigators who had no knowledge of outcome of the procedure. Echo parameters studied included size of ASD, length of atrial septum (LAS), and size of the superior and inferior rims in precordial and subcostal views and maximum jet width by color flow mapping. From these measurements several ratios were derived, and the data were compared. A smaller (p < 0.05) ASD was present in the group of patients with successful implantation of the device; LAS was similar (p > 0.1) in both groups. A lower (p < 0.05) ratio of ASD to LAS and a higher (p < 0.05) ratio of the superior and inferior septal rims to ASD were associated with the group of patients with successful implantation of the device.(ABSTRACT TRUNCATED AT 250 WORDS)
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Affiliation(s)
- S C Reddy
- Department of Pediatrics, University of Wisconsin Medical School, Madison
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Abstract
OBJECTIVES This study compared the efficacy and safety of balloon angioplasty with surgical correction of native aortic coarctation in infants < or = 3 months old. BACKGROUND There is a controversy with regard to the role of balloon angioplasty in the treatment of aortic coarctation, especially in young infants. METHODS Data from 29 infants < or = 3 months old undergoing therapy for aortic coarctation during the decade ending 1992 were analyzed. Fourteen infants underwent surgery, and 15 had balloon angioplasty. The sole criterion for allotment to the balloon group was the availability of an interventional cardiologist at the time of presentation of the infant. RESULTS The surgical and balloon groups were comparable (p > 0.1) with regard to age (27 +/- 35 [mean +/- SD] vs. 29 +/- 27 days), weight (3.5 +/- 0.9 vs. 3.8 +/- 1.0 kg) and prevalence (7 of 14 vs. 8 of 15) and type of associated defects. Operative (1 of 14 vs. 1 of 15) and late (3 of 13 vs. 3 of 14) mortality, immediate gradient relief (36 +/- 25 to 10 +/- 9 mm Hg vs. 41 +/- 14 to 6 +/- 6 mm Hg) and follow-up gradient (27 +/- 27 vs. 24 +/- 19 mm Hg) were similar (p > 0.1). Infants with a gradient > 20 mm Hg at follow-up (6 of 13 vs. 7 of 14) and need for reintervention (6 of 13 vs. 7 of 14) were also similar (p > 0.1) in both groups. Duration of hospital stay during the first intervention was higher (p < 0.05) in the surgical (32 +/- 37 days) than the balloon (7 +/- 6 days) group. Similarly, duration of endotracheal intubation and mechanical ventilation was longer (p < 0.05) in the surgical (12 +/- 16 days) than the balloon (2 +/- 3 days) group. Complications after surgical intervention (0.86 events/patient) were higher (p < 0.01) than those seen after balloon angioplasty (0.27 events/patient). However, the lack of significant differences observed for mortality rates and residual gradients may be due to low statistical power to detect differences (16% to 49%), implying that this may be due to either actual lack of statistical difference or small sample size. CONCLUSIONS The data indicate that the degree of relief from aortic coarctation and the frequency with which reintervention is needed are similar in both groups. However, the morbidity and complication rates are lower with balloon than with surgical therapy. These data suggest that balloon angioplasty may be an acceptable alternative to surgical correction in the treatment of symptomatic aortic coarctation in infants < or = 3 months old.
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Affiliation(s)
- P S Rao
- Department of Pediatrics, University of Wisconsin Medical School, Madison
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