Research Topics
Species | Ove AlmkvistSummaryAffiliation: Karolinska Institutet Country: Sweden Publications
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Detail Information
Publications
Cognitive support at episodic encoding and retrieval: similar patterns of utilization in community-based samples of Alzheimer's disease and vascular dementia patientsO Almkvist
Stockholm Gerontology Research Center, Sweden
J Clin Exp Neuropsychol 21:816-30. 1999..The results suggests a similarity between AD and VaD patients with regard to the nature of the episodic memory impairment, despite etiologic differences between the diseases...
Preserved cognitive function after 12 months of treatment with rivastigmine in mild Alzheimer's disease in comparison with untreated AD and MCI patientsO Almkvist
Neurotec Department, Karolinska Institutet, Stockholm, Sweden
Eur J Neurol 11:253-61. 2004..In conclusion, a clear beneficial effect of rivastigmine was shown on cognitive function for patients with mild AD and plasma values of ChE inhibition were associated with attention...
Estimation of premorbid cognitive function based on word knowledge: the Swedish Lexical Decision Test (SLDT)O Almkvist
Department of Psychology, Stockholm University, Sweden
Scand J Psychol 48:271-9. 2007..Finally, the theoretical foundation for the relationship between word knowledge and global cognitive function is discussed...
Cognitive syndrome(s) in preclinical and clinical vascular dementiaOve Almkvist
Karolinska Institutet, Stockholm, Sweden
Int Psychogeriatr 15:127-31. 2003..To summarize characteristics during preclinical and clinical stages, VaD appears to be associated with impairment in motor and mental speed as well as in executive function...
Neuropsychological features of mild cognitive impairment and preclinical Alzheimer's diseaseEva Arnaiz
Karolinska Institutet, Department of Clinical Neuroscience, Occupational Therapy, and Elderly Care Research NEUROTEC, Division of Geriatric Medicine, Huddinge University Hospital, Huddinge, Sweden
Acta Neurol Scand Suppl 179:34-41. 2003..Recommendations concerning methodological issues and the early management of neuropsychological MCI studies were made...
Functional brain imaging as a looking-glass into the degraded brain: reviewing evidence from Alzheimer disease in relation to normal agingO Almkvist
Neurotec, Geriatric Medicine, Huddinge University Hospital, and Queen Sophia University College of Nursing, 14186 Huddinge, Stockholm, Sweden
Acta Psychol (Amst) 105:255-77. 2000..In conclusion, the pattern of activation in AD depends on interactions between the clinical stage of patients, and the pattern of brain degeneration, as well as the task difficulty and specific networks necessary for solving the task...
Early diagnosis of Alzheimer dementia based on clinical and biological factorsO Almkvist
Division of Geriatric Medicine, Huddinge University Hospital, Sweden
Eur Arch Psychiatry Clin Neurosci 249:3-9. 1999..It is concluded that still no single marker of AD exists, which makes it necessary to rely on data from multiple sources in order to arrive at the best possible diagnosis of AD...
Increasing CSF phospho-tau levels during cognitive decline and progression to dementiaChristin Andersson
Department of Neurobiology, Caring Sciences and Society, Karolinska Institutet, NOVUM Karolinska University Hospital Huddinge, S 141 86 Stockholm, Sweden
Neurobiol Aging 29:1466-73. 2008..Little is known about longitudinal changes of cerebrospinal fluid (CSF) biomarkers during cognitive decline in neurodegenerative disease progression...
Low PiB PET retention in presence of pathologic CSF biomarkers in Arctic APP mutation carriersMichael Scholl
Department of Neurobiology, Care Sciences, and Society, Karolinska Institutet, Stockholm, Sweden
Neurology 79:229-36. 2012..To investigate the particular pathology of the Arctic APP (APParc) early-onset familial Alzheimer disease (eoFAD) mutation for the first time in vivo with PET in comparison with other eoFAD mutations and sporadic Alzheimer disease (sAD)...
Failure to modulate neural response to increased task demand in mild Alzheimer's disease: fMRI study of visuospatial processingPatrizia Vannini
Department of Neurobiology, Care Sciences and Society, Division of Clinical Geriatrics, Karolinska Institutet, Karolinska University Hospital Huddinge, Stockholm, Sweden
Neurobiol Dis 31:287-97. 2008..These results confirm deficits in visuospatial abilities, which occur early in AD, and offer new insights into the neural mechanisms underlying this impairment...
Clinical and neuropathological features of the arctic APP gene mutation causing early-onset Alzheimer diseaseHans Basun
Department of Neurobiology, Care Sciences and Society, Karolinska Institutet, Huddinge, Sweden
Arch Neurol 65:499-505. 2008..Most of these mutations may also cause cognitive impairment, but the Arctic APP mutation is the only known intra-beta-amyloid mutation to date causing the more typical clinical picture of Alzheimer disease...
Differential CSF biomarker levels in APOE-epsilon4-positive and -negative patients with memory impairmentChristin Andersson
Department of Neurobiology, Caring Sciences and Society, Karolinska Institutet, Karolinska University Hospital Huddinge, Stockholm, Sweden
Dement Geriatr Cogn Disord 23:87-95. 2007..To investigate the relationships between episodic memory, APOE genotype, CSF markers (total tau, T-tau; phospho-tau, P-tau; beta-amyloid, Abeta42) and longitudinal cognitive decline...
Time course of glucose metabolism in relation to cognitive performance and postmortem neuropathology in Met146Val PSEN1 mutation carriersMichael Scholl
Department of Neurobiology, Care Sciences and Society, Division of Alzheimer Neurobiology, Karolinska Institutet, Stockholm, Sweden
J Alzheimers Dis 24:495-506. 2011..We here show that FDG PET can depict in vivo the aggressive disease progression in eoFAD mutation carriers in relationship to neuropathology...
Dynamic changes in PET amyloid and FDG imaging at different stages of Alzheimer's diseaseAhmadul Kadir
Department of Neurobiology, Care Sciences and Society, Karolinska Institutet, Karolinska University Hospital Huddinge, Stockholm, Sweden
Neurobiol Aging 33:198.e1-14. 2012..The rCMRglc starts to decline in MCI patients and became more pronounced in clinical stage which related to continuous decline in cognition...
PET imaging of amyloid deposition in patients with mild cognitive impairmentAnton Forsberg
Karolinska Institute, Department of Neurobiology, Care Sciences and Society, Stockholm, Sweden
Neurobiol Aging 29:1456-65. 2008..01). The PIB retention in MCI converters was comparable to AD patients (p>0.01). Correlations were observed in the MCI patients between PIB retention and CSF Abeta(1-42), total Tau and episodic memory, respectively...
Encapsulated cell biodelivery of nerve growth factor to the Basal forebrain in patients with Alzheimer's diseaseMaria Eriksdotter-Jonhagen
Departments of Neurobiology, Caring Sciences and Society, Karolinska Institutet, Stockholm, Sweden maria eriksdotter jonhagen ki se
Dement Geriatr Cogn Disord 33:18-28. 2012..Here we report the results of a first-in-man study of encapsulated cell (EC) biodelivery of NGF to the basal forebrain of AD patients with the primary objective to explore safety and tolerability...
Changes in brain 11C-nicotine binding sites in patients with mild Alzheimer's disease following rivastigmine treatment as assessed by PETAhmadul Kadir
Karolinska Institute, Department of Neurobiology, Care Sciences and Society, Division of Molecular Neuropharmacology, Karolinska University Hospital Huddinge, Novum floor 5, 141 86, Stockholm, Sweden
Psychopharmacology (Berl) 191:1005-14. 2007..Thus, we used positron emission tomography (PET) technique as a sensitive approach to assess longitudinal changes in the nicotine binding sites in the brains of patients with AD...
Differential levels of apolipoprotein E and butyrylcholinesterase show strong association with pathological signs of Alzheimer's disease in the brain in vivoTaher Darreh-Shori
Department of Neurobiology, Care Sciences and Society, Division of Alzheimer Neurobiology, Karolinska Institutet, Stockholm, Sweden
Neurobiol Aging 32:2320.e15-32. 2011....
Glucose metabolism and PIB binding in carriers of a His163Tyr presenilin 1 mutationMichael Scholl
Division of Alzheimer Neurobiology, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet, Stockholm, Sweden
Neurobiol Aging 32:1388-99. 2011..Global cortical CMRglc and cognition were distinctly decreased. PIB binding was comparable with sporadic AD patterns but showing slightly higher striatal levels...
Effect of phenserine treatment on brain functional activity and amyloid in Alzheimer's diseaseAhmadul Kadir
Department of Neurobiology, Care Sciences and Society, Karolinska Institutet, Karolinska University Hospital Huddinge, Sweden
Ann Neurol 63:621-31. 2008....
Reduced neuronal efficacy in progressive mild cognitive impairment: a prospective fMRI study on visuospatial processingPatrizia Vannini
Department of Neurobiology, Care Sciences and Society, Division of Clinical Geriatrics, Karolinska Institutet, Karolinska University Hospital, Huddinge, 141 86 Stockholm, Sweden
Psychiatry Res 156:43-57. 2007..Increased parietal activation in PMCI could reflect a reduced neuronal efficacy due to accumulating AD pathology and might predict future clinical decline in patients with MCI...
Evidence for astrocytosis in prodromal Alzheimer disease provided by 11C-deuterium-L-deprenyl: a multitracer PET paradigm combining 11C-Pittsburgh compound B and 18F-FDGStephen F Carter
Department of Neurobiology, Care Sciences and Society, Karolinska Institutet, Stockholm, Sweden
J Nucl Med 53:37-46. 2012..Along with (11)C-DED PET, (11)C-Pittsburgh compound B ((11)C-PIB; fibrillar Aβ deposition), (18)F-FDG (glucose metabolism), T1 MRI, cerebrospinal fluid, and neuropsychologic data were acquired from the patients...
Cognitive decline from estimated premorbid status predicts neurodegeneration in Alzheimer's diseaseOve Almkvist
Department of Psychology, Stockholm University, Stockholm, Sweden
Neuropsychology 23:117-24. 2009..g., SLDT and ISW) were insensitive to AD and that these abilities indicated premorbid cognitive function in retrospect. In conclusion, cognitive decline from premorbid status reflects the disease processes...
Self- and informant ratings of personality in mild cognitive impairment, reviewedBirgitta Ausén
Department of Neurobiology, Care Sciences and Society, Karolinska Institutet, Stockholm, Sweden
Dement Geriatr Cogn Disord 32:387-93. 2011..To examine the degree of agreement between self- and informant ratings of personality in relation to cognitive function in patients with mild cognitive impairment (MCI), subjective cognitive impairment (SCI) and healthy controls (HC)...
The importance of impaired physical health and age in normal cognitive agingIngvar Bergman
Neurotec Department, Karolinska Institutet, Karolinska University Hospital, Huddinge, Sweden
Scand J Psychol 48:115-25. 2007..Because the prevalent diseases in normal aging are potentially preventable, the present findings promise good prospect for prevention of future cognitive disability among elderly people...
Positron emission tomography imaging and clinical progression in relation to molecular pathology in the first Pittsburgh Compound B positron emission tomography patient with Alzheimer's diseaseAhmadul Kadir
Department of Neurobiology, Care Sciences and Society, Karolinska Institutet, Karolinska University Hospital Huddinge, Stockholm, Sweden
Brain 134:301-17. 2011....
Personality features in subjective cognitive impairment and mild cognitive impairment--early indicators of dementia?Birgitta Ausén
Department of Neurobiology, Care Sciences and Society, Karolinska Institutet, Stockholm University, Stockholm, Sweden
Dement Geriatr Cogn Disord 28:528-35. 2009..The purpose of the present study was to investigate patterns of personality in patients with subjective cognitive impairment (SCI) and mild cognitive impairment (MCI), compared to healthy controls...
Clinical findings in nondemented mutation carriers predisposed to Alzheimer's disease: a model of mild cognitive impairmentOve Almkvist
Division of Clinical Geriatrics and Experimental Geriatrics, Department of Neurotec, Karolinska Institutet, Huddinge University Hospital, Stockholm, Sweden
Acta Neurol Scand Suppl 179:77-82. 2003..In conclusion, clinical examinations of relatively young individuals carrying an AD mutation did not reveal any marked abnormalities before the clinical onset of dementia...
Phonemic fluency deficits in asymptomatic gene carriers for Huntington's diseaseMaria U Larsson
Department of Neurobiology, Care Sciences and Society, Karolinska Institutet, Stoskholm, Sweden
Neuropsychology 22:596-605. 2008....
Early cognitive impairment in a subset of patients with presumed low-grade gliomaLena Ek
Department of Psychology, Stockholm University, Stockholm, Sweden
Neurocase 16:503-11. 2010..We conclude that cognitive dysfunction may be present already at early stage of disease, and that early identification of patients at risk is warranted...
Task demand modulations of visuospatial processing measured with functional magnetic resonance imagingPatrizia Vannini
Division of Clinical Geriatrics, Neurotec Department, Karolinska Institutet, Huddinge University Hospital, 14186, Stockholm, Sweden
Neuroimage 21:58-68. 2004..The brain regions that are most specialized for the execution of the visuospatial task can be assessed by relating the imposed task demand to the functional activation measured...
Evidence-based evaluation of magnetic resonance imaging as a diagnostic tool in dementia workupLars Olof Wahlund
Department of Neurobiology, Caring Sciences and Society, Division of Clinical Geriatrics, Karolinska Institutet, Stockholm, Sweden
Top Magn Reson Imaging 16:427-37. 2005..A great interest has been put in whether atrophy in the medial temporal lobe can serve as an early diagnostic marker for Alzheimer disease...
Insidious cognitive decline in CADASILKaarina Amberla
Division of Clinical Geriatrics, Karolinska Institutet, Stockholm, Sweden
Stroke 35:1598-602. 2004..CONCLUSIONS: A deterioration of working memory and executive function was already observed in the prestroke phase, which means that cognitive decline may start insidiously before the first onset of symptomatic ischemic episodes...
PET imaging of cortical 11C-nicotine binding correlates with the cognitive function of attention in Alzheimer's diseaseAhmadul Kadir
Department of Neurobiology, Care Sciences and Society, Division of Molecular Neuropharmacology, Karolinska Institutet, Karolinska University Hospital Huddinge, Novum Floor-5, Stockholm, 141 86, Sweden
Psychopharmacology (Berl) 188:509-20. 2006..CONCLUSION: Cortical nicotinic receptors in vivo in mild AD patients are robustly associated with the cognitive function of attention...
The assessment of fitness to drive after a stroke: the Nordic Stroke Driver Screening AssessmentCatarina Lundberg
Karolinska Institutet, Stockholm, Sweden
Scand J Psychol 44:23-30. 2003..We conclude that the Nordic version of the SDSA is a useful instrument, provided that test scores are interpreted in a balanced manner, taking into account the possibility of compensatory traffic behavior...
Cognitive functioning in Alzheimer's disease and vascular dementia: further evidence for similar patterns of deficitsKjell Fahlander
Stockholm Gerontology Research Center and NEUROTEC, Division of Geriatric Epidemiology, Karolinska Institute, Stockholm, Sweden
J Clin Exp Neuropsychol 24:734-44. 2002..These findings suggest that AD and AD may affect several basic cognitive functions in an equal manner...
Identifying patients at high and low risk of cognitive decline using Rey Auditory Verbal Learning Test among middle-aged memory clinic outpatientsChristin Andersson
Neurotec Department, Division of Clinical Geriatrics, Karolinska Institutet, Karolinska University Hospital Huddinge, Stockholm, Sweden
Dement Geriatr Cogn Disord 21:251-9. 2006..To investigate whether application of cutoff levels in an episodic memory test (Rey Auditory Verbal Learning Test, RAVLT) is a useful method for identifying patients at high and low risk of cognitive decline and subsequent dementia...
Voxel- and VOI-based analysis of SPECT CBF in relation to clinical and psychological heterogeneity of mild cognitive impairmentChaorui Huang
Department of Clinical Neuroscience, Occupational Therapy and Elderly Care Research, Division of Geriatric Medicine, Karolinska Institutet, Huddinge University Hospital, Stockholm, Sweden
Neuroimage 19:1137-44. 2003..Combined SPECT investigation and neuropsychological testing might predict the future development of dementia in patients with MCI...
Combination of (18)F-FDG PET and cerebrospinal fluid biomarkers as a better predictor of the progression to Alzheimer's disease in mild cognitive impairment patientsIl Han Choo
Alzheimer Neurobiology Center, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet, Stockholm, Sweden
J Alzheimers Dis 33:929-39. 2013..In conclusion, our findings highlight that the combination of regional glucose metabolic assessment by PET and CSF biomarkers evaluation can significantly improve AD predictive diagnostic accuracy of each respective method...
A European multicentre PET study of fibrillar amyloid in Alzheimer's diseaseAgneta Nordberg
Alzheimer Neurobiology Centre, Geriatric Clinic, Karolinska University Hospital Huddinge, Stockholm, Sweden
Eur J Nucl Med Mol Imaging 40:104-14. 2013..To serve as an early biomarker in AD the amyloid PET tracers need to be analysed in multicentre clinical studies...
Individual variability and environmental characteristics influence older adults' abilities to manage everyday technologyCamilla Malinowsky
Department of Neurobiology, Care Sciences and Society, Division of Occupational Therapy, Karolinska Institutet, Stockholm, Sweden
Int Psychogeriatr 24:484-95. 2012..This study aimed to identify aspects that influence the ability to manage ET among older adults with and without cognitive impairment...
Life situation, coping and quality of life in people with high and low risk of developing Alzheimer's diseaseKarin Axelman
Institution NEUROTEC, Karolinska Institutet, Huddinge University Hospital, Stockholm, Sweden
Dement Geriatr Cogn Disord 16:220-8. 2003..About 50% of the respondents complained about a lack of information. The pieces of information they asked for were early signs of the disease, treatment, and practical information on how to handle everyday life with an affected relative...
Word fluency performance and strategies in children with cochlear implants: age-dependent effects?Ulrika Löfkvist
Department of Speech and Language Pathology, Cochlear Implant Section, Karolinska University Hospital, Stockholm, Sweden
Scand J Psychol 53:467-74. 2012..The results are discussed with respect to factors such as age differences in performance for children with CI, especially for the phonemically based task...
Semantic range and relevance of emotive utterances in patients with frontotemporal degenerationIng Mari Tallberg
Department of Logopedics, Division of Geriatric Medicine, Karolinska Institutet, Huddinge University Hospital, SE 14186 Huddinge, Sweden
Brain Lang 82:146-58. 2002..The results are discussed in terms of impaired semantic retrieval and in relation to lateralization of lesion...
[Cognitive impairment after stroke--diagnosis and management]Torgeir Engstad
Geriatrisk avdeling, Universitetssykehuset Nord Norge, 9038 Tromsø
Tidsskr Nor Laegeforen 127:1390-3. 2007..An incidence of stroke is often followed by cognitive impairment. This review article presents an update about such impairment and emphasises diagnostical and therapeutical challenges...
Impaired motor speed, visuospatial episodic memory and verbal fluency characterize cognition in long-term stroke survivors: the Tromsø StudyTorgeir Engstad
Institute of Community Medicine, University of Tromsø, Norway
Neuroepidemiology 22:326-31. 2003..This pattern of cognitive disturbances may be a consequence of cerebral lesions in frontal subcortical areas, and is different from Alzheimer's disease...
Two-year follow-up of amyloid deposition in patients with Alzheimer's diseaseHenry Engler
Uppsala Imanet AB, Imanet, GE Healthcare Uppsala University, Uppsala
Brain 129:2856-66. 2006..FDG imaging may be able to detect a stabilization of cerebral metabolism caused by therapy administered to patients with a clinical diagnosis of Alzheimer's disease...
Reading words with irregular decoding rules: a test of premorbid cognitive function?Ing Mari Tallberg
CLINTEC Department, Division of Logopedics and Phoniatrics, Karolinska Insitutet, Sweden
Scand J Psychol 47:531-9. 2006..Exposure to written and spoken vocabulary during the lifespan may be indexed by ISW performance, for factor analysis suggested that this may constitute a discrete factor contributing to cognitive function...
Increased sensitivity in mapping task demand in visuospatial processing using reaction-time-dependent hemodynamic response predictors in rapid event-related fMRIChristoph Lehmann
Department of Psychiatric Neurophysiology, University Hospital of Clinical Psychiatry, Waldau, CH-3000 Bern 60, Switzerland
Neuroimage 31:505-12. 2006....
