Publications 2021

Aksnes M, Tiiman A, Edwin TH, Terenius L, Bogdanovic N, Vukojevic V, Knapskog AB (2021)
Comparison of Cerebrospinal Fluid Amyloidogenic Nanoplaques With Core Biomarkers of Alzheimer's Disease
Front. Aging Neurosci., 12, 608628
DOI 10.3389/fnagi.2020.608628

Aksnes M, Aass HCD, Tiiman A, Edwin TH, Terenius L, Bogdanovic N, Vukojevic V, Knapskog AB (2021)
Associations of cerebrospinal fluid amyloidogenic nanoplaques with cytokines in Alzheimer's disease
Transl. Neurodegener., 10 (1), 18
DOI 10.1186/s40035-021-00244-3

Alme KN, Askim T, Assmus J, Mollnes TE, Naik M, Naess H, Saltvedt I, Ueland PM, Ulvik A, Knapskog AB (2021)
Investigating novel biomarkers of immune activation and modulation in the context of sedentary behaviour: a multicentre prospective ischemic stroke cohort study
BMC Neurol., 21 (1), 318
DOI 10.1186/s12883-021-02343-0

Alme KN, Ulvik A, Askim T, Assmus J, Mollnes TE, Naik M, Naess H, Saltvedt I, Ueland PM, Knapskog AB (2021)
Neopterin and kynurenic acid as predictors of stroke recurrence and mortality: a multicentre prospective cohort study on biomarkers of inflammation measured three months after ischemic stroke
BMC Neurol., 21 (1), 476
DOI 10.1186/s12883-021-02498-w

Edwin TH, Strand BH, Persson K, Engedal K, Selbaek G, Knapskog AB (2021)
Neuropsychiatric symptoms and comorbidity: Associations with dementia progression rate in a memory clinic cohort
Int. J. Geriatr. Psychiatr., 36 (6), 960-969
DOI 10.1002/gps.5500

Edwin TH, Strand BH, Persson K, Engedal K, Selbaek G, Knapskog AB (2021)
Trajectories and risk factors of dementia progression: a memory clinic cohort followed up to 3 years from diagnosis
Int. Psychogeriatr., 33 (8), PII S1041610220003270-789
DOI 10.1017/S1041610220003270

Einstad MS, Saltvedt I, Lydersen S, Ursin MH, Munthe-Kaas R, Ihle-Hansen H, Knapskog AB, Askim T, Beyer MK, Naess H, Seljeseth YM, Ellekjaer H, Thingstad P (2021)
Associations between post-stroke motor and cognitive function: a cross-sectional study
BMC Geriatr., 21 (1), 103
DOI 10.1186/s12877-021-02055-7

Gynnild MN, Aakery R, Spigset O, Askim T, Beyer MK, Ihle-Hansen H, Munthe-Kaas R, Knapskog AB, Lydersen S, Naess H, Rsstad TG, Seljeseth YM, Thingstad P, Saltvedt I, Ellekjaer H (2021)
Vascular risk factor control and adherence to secondary preventive medication after ischaemic stroke
J. Intern. Med., 289 (3), 355-368
DOI 10.1111/joim.13161

Halaas NB, Zetterberg H, Idland AV, Knapskog AB, Watne LO, Blennow K (2021)
Cerebrospinal Fluid Concentration of Neurogranin in Hip Fracture Patients with Delirium
J. Alzheimers Dis., 81 (2), 667-677
DOI 10.3233/JAD-201341

Hernes SS, Flak MM, Lohaugen GCC, Skranes J, Hol HR, Madsen BO, Knapskog AB, Engvig A, Pripp A, Ulstein I, Lona T, Zhang X, Chang LD (2021)
Working Memory Training in Amnestic and Non-amnestic Patients With Mild Cognitive Impairment: Preliminary Findings From Genotype Variants on Training Effects
Front. Aging Neurosci., 13, 624253
DOI 10.3389/fnagi.2021.624253

Muller EG, Stokke C, Stokmo HL, Edwin TH, Knapskog AB, Revheim ME (2021)
Evaluation of semi-quantitative measures of F-18-Flutemetamol PET for the clinical diagnosis of Alzheimer's disease
Quant. Imaging Med. Surg.
DOI 10.21037/qims-21-188

Schellhorn T, Zucknick M, Askim T, Munthe-Kaas R, Ihle-Hansen H, Seljeseth YM, Knapskog AB, Naess H, Ellekjaer H, Thingstad P, Wyller TB, Saltvedt I, Beyer MK (2021)
Pre-stroke cognitive impairment is associated with vascular imaging pathology: a prospective observationa study
BMC Geriatr., 21 (1), 362
DOI 10.1186/s12877-021-02327-2

Aam S, Gynnild MN, Munthe-Kaas R, Saltvedt I, Lydersen S, Knapskog AB, Ihle-Hansen H, Ellekjaer H, Eldholm RS, Fure B (2021)
The Impact of Vascular Risk Factors on Post-stroke Cognitive Impairment: The Nor-COAST Study
Front. Neurol., 12, 678794
DOI 10.3389/fneur.2021.678794

Publications 2020

Aksnes M, Muller EG, Tiiman A, Edwin TH, Terenius L, Revheim ME, Vukojevic V, Bogdanovic N, Knapskog AB (2020)
Amyloidogenic Nanoplaques in Cerebrospinal Fluid: Relationship to Amyloid Brain Uptake and Clinical Alzheimer's Disease in a Memory Clinic Cohort
J. Alzheimers Dis., 77 (2), 831-842
DOI 10.3233/JAD-200237

Alme KN, Knapskog AB, Naess H, Naik M, Beyer M, Ellekjaer H, English C, Hansen HI, Kummeneje CS, Munthe-Kaas R, Saltvedt I, Seljeseth Y, Tan XC, Thingstad P, Askim T (2020)
Is long-bout sedentary behaviour associated with long-term glucose levels 3 months after acute ischaemic stroke? A prospective observational cohort study
BMJ Open, 10 (11), e037475
DOI 10.1136/bmjopen-2020-037475

Aman Y, Ryan B, Torsetnes SB, Knapskog AB, Watne LO, McEwan WA, Fang EF (2020)
Enhancing mitophagy as a therapeutic approach for neurodegenerative diseases
Int. Rev. Neurobiol., 155, 169-202
DOI 10.1016/bs.irn.2020.02.008

Edwin TH, Henjum K, Nilsson LNG, Watne LO, Persson K, Eldholm RS, Saltvedt I, Halaas NB, Selbaek G, Engedal K, Strand BH, Knapskog AB (2020)
A high cerebrospinal fluid soluble TREM2 level is associated with slow clinical progression of Alzheimer's disease
Alzheimers Dement.-Diagn. Assess. Dis. Monit., 12 (1), e12128
DOI 10.1002/dad2.12128

Hazen J, Vistnes M, Barca ML, Eldholm RS, Persson K, Braekhus A, Saltvedt I, Selbaek G, Engedal K, Knapskog AB (2020)
The Association Between Circulating Inflammatory Markers and the Progression of Alzheimer Disease in Norwegian Memory Clinic Patients With Mild Cognitive Impairment or Dementia
Alzheimer Dis. Assoc. Dis., 34 (1), 47-53
DOI 10.1097/WAD.0000000000000342

Knapskog AB, Henjum K, Idland AV, Eldholm RS, Persson K, Saltvedt I, Watne LO, Engedal K, Nilsson LNG (2020)
Cerebrospinal fluid sTREM2 in Alzheimer's disease: comparisons between clinical presentation and AT classification
Sci Rep, 10 (1), 15886
DOI 10.1038/s41598-020-72878-8

Mjorud M, Selbaek G, Bjertness E, Edwin TH, Engedal K, Knapskog AB, Strand BH (2020)
Time from dementia diagnosis to nursing-home admission and death among persons with dementia: A multistate survival analysis
PLoS One, 15 (12), e0243513
DOI 10.1371/journal.pone.0243513

Sajjad MU, Blennow K, Knapskog AB, Idland AV, Chaudhry FA, Wyller TB, Zetterberg H, Watne LO (2020)
Cerebrospinal Fluid Levels of Interleukin-8 in Delirium, Dementia, and Cognitively Healthy Patients
J. Alzheimers Dis., 73 (4), 1363-1372
DOI 10.3233/JAD-190941

Sanchez-Rodriguez D, Annweiler C, Marco E, Hope S, Piotrowicz K, Surquin M, Ranhoff A, Van Den Noortgate N, Andersen-Ranberg K, Bonin-Guillaume S, Conroy S, Gordon A, Grodziki T, Landi F, Martinez-Velilla N, Munzer T, Ranhoff AH, Roller-Wirnsberger R, Singler K, Al Hamad HK, Beuscart JB, Blanc F, Ciurea A, Cobbaert K, Hojmann AH et al. (2020)
European Academy for medicine of ageing session participants' report on malnutrition assessment and diagnostic methods; an international survey
Clin. Nutr. ESPEN, 35, 75-80
DOI 10.1016/j.clnesp.2019.11.007

Aam S, Einstad MS, Munthe-Kaas R, Lydersen S, Ihle-Hansen H, Knapskog AB, Ellekjaer H, Seljeseth Y, Saltvedt I (2020)
Post-stroke Cognitive Impairment-Impact of Follow-Up Time and Stroke Subtype on Severity and Cognitive Profile: The Nor-COAST Study
Front. Neurol., 11, 699
DOI 10.3389/fneur.2020.00699

Publications 2019

Barca ML, Eldholm RS, Persson K, Bjorklof GH, Borza T, Telenius E, Knapskog AB, Braekhus A, Saltvedt I, Selbaek G, Engedal K (2019)
Cortisol levels among older people with and without depression and dementia
Int. Psychogeriatr., 31 (4), 597-601
DOI 10.1017/S1041610218001199

Flak MM, Hol HR, Hernes SS, Chang LD, Engvig A, Bjuland KJ, Pripp A, Madsen BO, Knapskog AB, Ulstein I, Lona T, Skranes J, Lohaugen GCC (2019)
Adaptive Computerized Working Memory Training in Patients With Mild Cognitive Impairment. A Randomized Double-Blind Active Controlled Trial
Front. Psychol., 10, 807
DOI 10.3389/fpsyg.2019.00807

Flak MM, Hol HR, Hernes SS, Chang LD, Ernst T, Engvig A, Bjuland KJ, Madsen BO, Lindland EMS, Knapskog AB, Ulstein ID, Lona TEE, Skranes J, Lohaugen GCC (2019)
Cognitive Profiles and Atrophy Ratings on MRI in Senior Patients With Mild Cognitive Impairment (vol 10, 384, 2018)
Front. Aging Neurosci., 11, 37
DOI 10.3389/fnagi.2019.00037

Knapskog AB, Braekhus A, Engedal K (2019)
The Effect of Changing the Amyloid beta(42) Cut-off of Cerebrospinal Fluid Biomarkers on Alzheimer Disease Diagnosis in a Memory Clinic Population in Norway
Alzheimer Dis. Assoc. Dis., 33 (1), 72-74
DOI 10.1097/WAD.0000000000000268

Leavey N, Hammond SP, Shepstone L, Cross J, Zetterberg H, Cunningham C, MacLullich A, Watne LO, Minihane AM, Ballard C, Knapskog AB, Hall R, Howard G, Hammond M, Fox C (2019)
Study protocol: ASCRIBED: the impact of Acute SystematiC inflammation upon cerebRospinal fluId and blood BiomarkErs of brain inflammation and injury in dementia: a study in acute hip fracture patients
BMC Neurol., 19 (1), 223
DOI 10.1186/s12883-019-1447-7

Muller EG, Edwin TH, Stokke C, Navelsaker SS, Babovic A, Bogdanovic N, Knapskog AB, Revheim ME (2019)
Amyloid-beta PET-Correlation with cerebrospinal fluid biomarkers and prediction of Alzheimer's disease diagnosis in a memory clinic
PLoS One, 14 (8), e0221365
DOI 10.1371/journal.pone.0221365

Soares JZ, Pettersen R, Benth JS, Knapskog AB, Selbaek G, Bogdanovic N (2019)
Higher Vitamin D Levels are Associated with Better Attentional Functions: Data from the NorCog Register
J. Nutr. Health Aging, 23 (8), 725-731
DOI 10.1007/s12603-019-1220-z

Strand BH, Knapskog AB, Persson K, Edwin TH, Bjertness E, Engedal K, Selbaek G (2019)
The Loss in Expectation of Life due to Early-Onset Mild Cognitive Impairment and Early-Onset Dementia in Norway
Dement. Geriatr. Cogn. Disord., 47 (4-6), 355-365
DOI 10.1159/000501269

Publications 2018

Eldholm RS, Barca ML, Persson K, Knapskog AB, Kersten H, Engedal K, Selbaek G, Braekhus A, Skovlund E, Saltvedt I (2018)
Progression of Alzheimer's Disease: A Longitudinal Study in Norwegian Memory Clinics
J. Alzheimers Dis., 61 (3), 1221-1232
DOI 10.3233/JAD-170436

Eldholm RS, Persson K, Barca ML, Knapskog AB, Cavallin L, Engedal K, Selbaek G, Skovlund E, Saltvedt I (2018)
Association between vascular comorbidity and progression of Alzheimer's disease: a two-year observational study in Norwegian memory clinics
BMC Geriatr., 18, 120
DOI 10.1186/s12877-018-0813-4

Flak MM, Hol HR, Hernes SS, Chang L, Ernst T, Engvig A, Bjuland KJ, Madsen BO, Lindland EMS, Knapskog AB, Ulstein ID, Lona TEE, Skranes J, Lohaugen GCC (2018)
Cognitive Profiles and Atrophy Ratings on MRI in Senior Patients With Mild Cognitive Impairment
Front. Aging Neurosci., 10, 384
DOI 10.3389/fnagi.2018.00384

Persson K, Barca ML, Cavallin L, Braekhus A, Knapskog AB, Selbaek G, Engedal K (2018)
Comparison of automated volumetry of the hippocampus using NeuroQuant (R) and visual assessment of the medial temporal lobe in Alzheimer's disease
Acta Radiol., 59 (8), 997-1001
DOI 10.1177/0284185117743778

Strand BH, Knapskog AB, Persson K, Edwin TH, Amland R, Mjorud M, Bjertness E, Engedal K, Selbaek G (2018)
Survival and years of life lost in various aetiologies of dementia, mild cognitive impairment (MCI) and subjective cognitive decline (SCD) in Norway
PLoS One, 13 (9), e0204436
DOI 10.1371/journal.pone.0204436

Thingstad P, Askim T, Beyer MK, Brathen G, Ellekjaer H, Ihle-Hansen H, Knapskog AB, Lydersen S, Munthe-Kaas R, Naess H, Pendlebury ST, Seljeseth YM, Saltvedt I (2018)
The Norwegian Cognitive impairment after stroke study (Nor-COAST): study protocol of a multicentre, prospective cohort study
BMC Neurol., 18, 193
DOI 10.1186/s12883-018-1198-x

Publications 2017

Barca ML, Persson K, Eldholm R, Benth JS, Kersten H, Knapskog AB, Saltvedt I, Selbaek G, Engedal K (2017)
Trajectories of depressive symptoms and their relationship to the progression of dementia
J. Affect. Disord., 222, 146-152
DOI 10.1016/j.jad.2017.07.008

Knapskog AB, Bogdanovic N (2017)
Forgetful and forgotten
Tidsskr. Nor. Laegeforen., 137 (10), 685
DOI 10.4045/tidsskr.17.0388

Knapskog AB, Eldholm RS, Braekhus A, Engedal K, Saltvedt I (2017)
Factors that influence the levels of cerebrospinal fluid biomarkers in memory clinic patients
BMC Geriatr., 17, 210
DOI 10.1186/s12877-017-0611-4

Persson K, Eldholm RS, Barca ML, Cavallin L, Ferreira D, Knapskog AB, Selbaek G, Braekhus A, Saltvedt I, Westman E, Engedal K (2017)
MRI-assessed atrophy subtypes in Alzheimer's disease and the cognitive reserve hypothesis
PLoS One, 12 (10), e0186595
DOI 10.1371/journal.pone.0186595

Publications 2016

Knapskog AB, Engedal K, Braekhus A (2016)
Performance of Cerebrospinal Fluid Biomarkers of Alzheimer Disease in a Memory Clinic in Norway
Alzheimer Dis. Assoc. Dis., 30 (1), 8-14
DOI 10.1097/WAD.0000000000000126

Publications 2015

Barca ML, Engedal K, Selbaek G, Knapskog AB, Laks J, Coutinho E, Benth JS (2015)
Confirmatory factor analysis of the Cornell scale for depression in dementia among patient with dementia of various degrees
J. Affect. Disord., 188, 173-178
DOI 10.1016/j.jad.2015.08.062

Publications 2014

de Araujo NB, Moraes HS, Silveira H, Arcoverde C, Vasques PE, Barca ML, Knapskog AB, Engedal K, Coutinho ESF, Deslandes AC, Laks J (2014)
Impaired cognition in depression and Alzheimer (AD): a gradient from depression to depression in AD
Arq. Neuro-Psiquiatr., 72 (9), 671-679
DOI 10.1590/0004-282X20140108

Knapskog AB, Barca ML, Engedal K (2014)
Prevalence of depression among memory clinic patients as measured by the Cornell Scale of Depression in Dementia
Aging Ment. Health, 18 (5), 579-587
DOI 10.1080/13607863.2013.827630

Publications 2013

Knapskog AB, Barca ML, Engedal K (2013)
A Comparison of the Cornell Scale for Depression in Dementia and the Montgomery-Aasberg Depression Rating Scale in a Memory Clinic Population
Dement. Geriatr. Cogn. Disord., 35 (5-6), 256-265
DOI 10.1159/000348345

Knapskog AB, Portugal MD, Barca ML, Coutinho ESF, Laks J, Engedal K (2013)
A cross-cultural comparison of the phenotype of depression as measured by the Cornell Scale and the MADRS in two elderly outpatient populations
J. Affect. Disord., 144 (1-2), 34-41
DOI 10.1016/j.jad.2012.06.003

Publications 2012

Portugal MD, Coutinho ESF, Almeida C, Barca ML, Knapskog AB, Engedal K, Laks J (2012)
Validation of Montgomery-Asberg Rating Scale and Cornell Scale for Depression in Dementia in Brazilian elderly patients
Int. Psychogeriatr., 24 (8), 1291-1298
DOI 10.1017/S1041610211002250

Publications 2011

Knapskog AB, Barca ML, Engedal K, Cornell Study Grp (2011)
A Comparison of the Validity of the Cornell Scale and the MADRS in Detecting Depression among Memory Clinic Patients
Dement. Geriatr. Cogn. Disord., 32 (4), 287-294
DOI 10.1159/000334983