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3. White Matter Hyperintensity Volume and Poststroke Cognition: An Individual Patient Data Pooled Analysis of 9 Ischemic Stroke Cohort Studies

Author

de Kort, Floor A.S., Coenen, Mirthe, Weaver, Nick A., Kuijf, Hugo J., Aben, Hugo P., Bae, Hee-Joon, Bordet, Régis, Cammà, Guido, Chen, Christopher P.L.H., Dewenter, Anna, Duering, Marco, Fang, Rong, van der Giessen, Ruben S., Hamilton, Olivia K.L., Hilal, Saima, Huenges Wajer, Irene M.C., Kan, Cheuk Ni, Kim, Jonguk, Kim, Beom Joon, Köhler, Sebastian, de Kort, Paul L.M., Koudstaal, Peter J., Lim, Jae-Sung, Lopes, Renaud, Mok, Vincent C.T., Staals, Julie, Venketasubramanian, Narayanaswamy, Verhagen, Charlotte M., Verhey, Frans R.J., Wardlaw, Joanna M., Xu, Xin, Yu, Kyung-Ho, Biesbroek, J. Matthijs, and Biessels, Geert Jan

Published
2023
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4. The Meta VCI Map consortium for meta‐analyses on strategic lesion locations for vascular cognitive impairment using lesion‐symptom mapping: Design and multicenter pilot study

Author

Weaver, Nick A, Zhao, Lei, Biesbroek, J Matthijs, Kuijf, Hugo J, Aben, Hugo P, Bae, Hee‐Joon, Caballero, Miguel ÁA, Chappell, Francesca M, Chen, Christopher PLH, Dichgans, Martin, Duering, Marco, Georgakis, Marios K, van der Giessen, Ruben S, Gyanwali, Bibek, Hamilton, Olivia KL, Hilal, Saima, Hofe, Elise M vom, de Kort, Paul LM, Koudstaal, Peter J, Lam, Bonnie YK, Lim, Jae‐Sung, Makin, Stephen DJ, Mok, Vincent CT, Shi, Lin, Hernández, Maria C Valdés, Venketasubramanian, Narayanaswamy, Wardlaw, Joanna M, Wollenweber, Frank A, Wong, Adrian, Xin, Xu, consortium, Meta VCI Map, DeCarli, C, Fletcher, EA, Maillard, P, Barnes, J, Sudre, CH, Schott, JM, Ikram, MA, Papma, JM, Steketee, RME, Vernooij, MW, Bordet, R, Lopes, R, Huang, C‐W, Frayne, R, McCreary, CR, Smith, EE, group, Calgary Normative Study, Backes, W, Köhler, S, van Oostenbrugge, RJ, Staals, J, Verhey, F, Cheng, CY, Kalaria, RN, Werring, D, Hsu, JL, Huang, K‐L, van der Grond, J, Jukema, JW, van der Mast, RC, Nijboer, TCW, group, Framingham Heart Study, Yu, K‐H, group, The Dutch Parelsnoer Institute–Neurodegenerative diseases, Schmidt, R, Pirpamer, L, MacIntosh, BJ, Robertson, AD, de Leeuw, F‐E, Tuladhar, AM, Chaturvedi, N, Tillin, T, Brodaty, H, Sachdev, P, group, TABASCO, Barkhof, F, van der Flier, WM, Kappelle, LJ, and Biessels, Geert Jan

Subjects
Biomedical and Clinical Sciences, Clinical Sciences, Biomedical Imaging, Atherosclerosis, Clinical Research, Brain Disorders, Acquired Cognitive Impairment, Stroke, Neurosciences, Meta VCI Map consortium, Cerebrovascular disease, Consortium, Data harmonization, Lesion location, Lesion-symptom mapping, Small vessel disease, Support vector regression, Vascular cognitive impairment, Genetics, Biological psychology
Abstract

IntroductionThe Meta VCI Map consortium performs meta-analyses on strategic lesion locations for vascular cognitive impairment using lesion-symptom mapping. Integration of data from different cohorts will increase sample sizes, to improve brain lesion coverage and support comprehensive lesion-symptom mapping studies.MethodsCohorts with available imaging on white matter hyperintensities or infarcts and cognitive testing were invited. We performed a pilot study to test the feasibility of multicenter data processing and analysis and determine the benefits to lesion coverage.ResultsForty-seven groups have joined Meta VCI Map (stroke n = 7800 patients; memory clinic n = 4900; population-based n = 14,400). The pilot study (six ischemic stroke cohorts, n = 878) demonstrated feasibility of multicenter data integration (computed tomography/magnetic resonance imaging) and achieved marked improvement of lesion coverage.DiscussionMeta VCI Map will provide new insights into the relevance of vascular lesion location for cognitive dysfunction. After the successful pilot study, further projects are being prepared. Other investigators are welcome to join.

Published
2019

5. Sex Differences in Poststroke Cognitive Impairment: A Multicenter Study in 2343 Patients With Acute Ischemic Stroke

Author

Exalto, Lieza G., Weaver, Nick A., Kuijf, Hugo J., Aben, Hugo P., Bae, Hee-Joon, Best, Jonathan G., Bordet, Régis, Chen, Christopher P.L.H., van der Giessen, Ruben S., Godefroy, Olivier, Gyanwali, Bibek, Hamilton, Olivia K.L., Hilal, Saima, Huenges Wajer, Irene M.C., Kim, Jonguk, Kappelle, L. Jaap, Kim, Beom Joon, Köhler, Sebastian, de Kort, Paul L.M., Koudstaal, Peter J., Lim, Jae-Sung, Makin, Stephen D.J., Mok, Vincent C.T., van Oostenbrugge, Robert J., Roussel, Martine, Staals, Julie, Valdés-Hernández, Maria del C., Venketasubramanian, Narayanaswamy, Verhey, Frans R.J., Wardlaw, Joanna M., Werring, David J., Xu, Xin, van Zandvoort, Martine J.E., Biesbroek, J. Matthijs, Chappell, Francesca M., and Biessels, Geert Jan

Published
2023
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6. Strategic white matter hyperintensity locations associated with post-stroke cognitive impairment: A multicenter study in 1568 stroke patients.

Author

Coenen, Mirthe, de Kort, Floor AS, Weaver, Nick A, Kuijf, Hugo J, Aben, Hugo P, Bae, Hee-Joon, Bordet, Régis, Chen, Christopher PLH, Dewenter, Anna, Doeven, Thomas, Dondaine, Thibaut, Duering, Marco, Fang, Rong, van der Giessen, Ruben S, Kim, Jonguk, Kim, Beom Joon, de Kort, Paul LM, Koudstaal, Peter J, Lee, Minwoo, and Lim, Jae-Sung

Subjects
EXECUTIVE function, COGNITIVE processing speed, COGNITION, COGNITIVE ability, WHITE matter (Nerve tissue)
Abstract

Background: Post-stroke cognitive impairment (PSCI) occurs in up to 50% of stroke survivors. Presence of pre-existing vascular brain injury, in particular the extent of white matter hyperintensities (WMH), is associated with worse cognitive outcome after stroke, but the role of WMH location in this association is unclear. Aims: We determined if WMH in strategic white matter tracts explain cognitive performance after stroke. Methods: Individual patient data from nine ischemic stroke cohorts with magnetic resonance imaging (MRI) were harmonized through the Meta VCI Map consortium. The association between WMH volumes in strategic tracts and domain-specific cognitive functioning (attention and executive functioning, information processing speed, language and verbal memory) was assessed using linear mixed models and lasso regression. We used a hypothesis-driven design, primarily addressing four white matter tracts known to be strategic in memory clinic patients: the left and right anterior thalamic radiation, forceps major, and left inferior fronto-occipital fasciculus. Results: The total study sample consisted of 1568 patients (39.9% female, mean age = 67.3 years). Total WMH volume was strongly related to cognitive performance on all four cognitive domains. WMH volume in the left anterior thalamic radiation was significantly associated with cognitive performance on attention and executive functioning and information processing speed and WMH volume in the forceps major with information processing speed. The multivariable lasso regression showed that these associations were independent of age, sex, education, and total infarct volume and had larger coefficients than total WMH volume. Conclusion: These results show tract-specific relations between WMH volume and cognitive performance after ischemic stroke, independent of total WMH volume. This implies that the concept of strategic lesions in PSCI extends beyond acute infarcts and also involves pre-existing WMH. Data access statement: The Meta VCI Map consortium is dedicated to data sharing, following our guidelines. [ABSTRACT FROM AUTHOR]

Published
2024
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7. Strategic infarct locations for post-stroke cognitive impairment: a pooled analysis of individual patient data from 12 acute ischaemic stroke cohorts

Author

Weaver, Nick A, Kuijf, Hugo J, Aben, Hugo P, Abrigo, Jill, Bae, Hee-Joon, Barbay, Mélanie, Best, Jonathan G, Bordet, Régis, Chappell, Francesca M, Chen, Christopher P L H, Dondaine, Thibaut, van der Giessen, Ruben S, Godefroy, Olivier, Gyanwali, Bibek, Hamilton, Olivia K L, Hilal, Saima, Huenges Wajer, Irene M C, Kang, Yeonwook, Kappelle, L Jaap, Kim, Beom Joon, Köhler, Sebastian, de Kort, Paul L M, Koudstaal, Peter J, Kuchcinski, Gregory, Lam, Bonnie Y K, Lee, Byung-Chul, Lee, Keon-Joo, Lim, Jae-Sung, Lopes, Renaud, Makin, Stephen D J, Mendyk, Anne-Marie, Mok, Vincent C T, Oh, Mi Sun, van Oostenbrugge, Robert J, Roussel, Martine, Shi, Lin, Staals, Julie, del C Valdés-Hernández, Maria, Venketasubramanian, Narayanaswamy, Verhey, Frans R J, Wardlaw, Joanna M, Werring, David J, Xin, Xu, Yu, Kyung-Ho, van Zandvoort, Martine J E, Zhao, Lei, Biesbroek, J Matthijs, and Biessels, Geert Jan

Published
2021
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8. Strategic white matter hyperintensity locations associated with post-stroke cognitive impairment:A multicenter study in 1568 stroke patients

Author

Coenen, Mirthe, de Kort, Floor A. S., Weaver, Nick A., Kuijf, Hugo J., Aben, Hugo P., Bae, Hee-Joon, Bordet, Regis, Chen, Christopher P. L. H., Dewenter, Anna, Doeven, Thomas, Dondaine, Thibaut, Duering, Marco, Fang, Rong, van der Giessen, Ruben S., Kim, Jonguk, Kim, Beom Joon, de Kort, Paul L. M., Koudstaal, Peter J., Lee, Minwoo, Lim, Jae-Sung, Lopes, Renaud, van Oostenbrugge, Robert J., Staals, Julie, Yu, Kyung-Ho, Biessels, Geert Jan, Biesbroek, J. Matthijs, Coenen, Mirthe, de Kort, Floor A. S., Weaver, Nick A., Kuijf, Hugo J., Aben, Hugo P., Bae, Hee-Joon, Bordet, Regis, Chen, Christopher P. L. H., Dewenter, Anna, Doeven, Thomas, Dondaine, Thibaut, Duering, Marco, Fang, Rong, van der Giessen, Ruben S., Kim, Jonguk, Kim, Beom Joon, de Kort, Paul L. M., Koudstaal, Peter J., Lee, Minwoo, Lim, Jae-Sung, Lopes, Renaud, van Oostenbrugge, Robert J., Staals, Julie, Yu, Kyung-Ho, Biessels, Geert Jan, and Biesbroek, J. Matthijs

Abstract

Background: Post-stroke cognitive impairment (PSCI) occurs in up to 50% of stroke survivors. Presence of pre-existing vascular brain injury, in particular the extent of white matter hyperintensities (WMH), is associated with worse cognitive outcome after stroke, but the role of WMH location in this association is unclear.Aims: We determined if WMH in strategic white matter tracts explain cognitive performance after stroke.Methods: Individual patient data from nine ischemic stroke cohorts with magnetic resonance imaging (MRI) were harmonized through the Meta VCI Map consortium. The association between WMH volumes in strategic tracts and domain-specific cognitive functioning (attention and executive functioning, information processing speed, language and verbal memory) was assessed using linear mixed models and lasso regression. We used a hypothesis-driven design, primarily addressing four white matter tracts known to be strategic in memory clinic patients: the left and right anterior thalamic radiation, forceps major, and left inferior fronto-occipital fasciculus.Results: The total study sample consisted of 1568 patients (39.9% female, mean age = 67.3 years). Total WMH volume was strongly related to cognitive performance on all four cognitive domains. WMH volume in the left anterior thalamic radiation was significantly associated with cognitive performance on attention and executive functioning and information processing speed and WMH volume in the forceps major with information processing speed. The multivariable lasso regression showed that these associations were independent of age, sex, education, and total infarct volume and had larger coefficients than total WMH volume.Conclusion: These results show tract-specific relations between WMH volume and cognitive performance after ischemic stroke, independent of total WMH volume. This implies that the concept of strategic lesions in PSCI extends beyond acute infarcts and also involves pre-existing WMH.Data access stat

Published
2024

9. Cerebellar-Induced Aphasia After Stroke:Evidence for the “Linguistic Cerebellum”

Author

Satoer, Djaina, Koudstaal, Peter J., Visch-Brink, Evy, van der Giessen, Ruben S., Satoer, Djaina, Koudstaal, Peter J., Visch-Brink, Evy, and van der Giessen, Ruben S.

Abstract

The cerebellum is traditionally known to subserve motor functions. However, for several decades, the concept of the “cerebellar cognitive affective syndrome” has evolved. Studies in healthy participants and patients have confirmed the cerebellar role in language. The exact involvement of the cerebellum regarding cerebellar aphasia remains uncertain. We included 43 cerebellar stroke patients who were tested at 3 months post-onset with the Boston Naming Test (BNT), the Token Test (TT), and the Diagnostic Instrument for Mild Aphasia (DIMA). Lesion side (left/right) and volume (cm3) were investigated. Patients significantly deviated on the following: BNT (p<0.001), TT (p<0.05), DIMA subtests: sentences repetition (p=0.001), semantic odd-picture-out (p<0.05), sentence completion (p<0.05) without an effect of lesion location (left/right) or volume (cm3) (p>0.05). Our clinical study confirms a non-lateralized cerebellar aphasia post-stroke, characterized by impairments in word retrieval, phonology, semantics, and syntax resembling cerebral-induced aphasia. The integral cerebellum appears to interact with eloquent cortico-subcortical language areas.

Published
2024

10. The Meta VCI Map consortium for meta-analyses on strategic lesion locations for vascular cognitive impairment using lesion-symptom mapping: Design and multicenter pilot study

Author

DeCarli, C., Fletcher, E.A., Maillard, P., Barnes, J., Sudre, C.H., Schott, J.M., Ikram, M.A., Papma, J.M., Steketee, R.M.E., Vernooij, M.W., Bordet, R., Lopes, R., Huang, C.-W., Frayne, R., McCreary, C.R., Smith, E.E., Backes, W., Köhler, S., van Oostenbrugge, R.J., Staals, J., Verhey, F., Cheng, C.Y., Kalaria, R.N., Werring, D., Hsu, J.L., Huang, K.-L., van der Grond, J., Jukema, J.W., van der Mast, R.C., Nijboer, T.C.W., Yu, K.-H., Schmidt, R., Pirpamer, L., MacIntosh, B.J., Robertson, A.D., de Leeuw, F.-E., Tuladhar, A.M., Chaturvedi, N., Tillin, T., Brodaty, H., Sachdev, P., Barkhof, F., van der Flier, W.M., Kappelle, L.J., Weaver, Nick A., Zhao, Lei, Biesbroek, J. Matthijs, Kuijf, Hugo J., Aben, Hugo P., Bae, Hee-Joon, Caballero, Miguel Á.A., Chappell, Francesca M., Chen, Christopher P.L.H., Dichgans, Martin, Duering, Marco, Georgakis, Marios K., van der Giessen, Ruben S., Gyanwali, Bibek, Hamilton, Olivia K.L., Hilal, Saima, vom Hofe, Elise M., de Kort, Paul L.M., Koudstaal, Peter J., Lam, Bonnie Y.K., Lim, Jae-Sung, Makin, Stephen D.J., Mok, Vincent C.T., Shi, Lin, Valdés Hernández, Maria C., Venketasubramanian, Narayanaswamy, Wardlaw, Joanna M., Wollenweber, Frank A., Wong, Adrian, Xin, Xu, and Biessels, Geert Jan

Published
2019
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11. NETWORK-BASED LESION IMPACT SCORE IS AN INDEPENDENT PREDICTOR OF POST-STROKE COGNITIVE IMPAIRMENT

Author

Biesbroek, J. Matthijs, Weaver, Nick A, Aben, Hugo P, Kuijf, Hugo J, Abrigo, Jill, Bae, Hee-Joon, Barbay, Mélanie, Best, Jonathan G, Bordet, Régis, Chappell, Francesca M., Chen, Christopher P.L.H., Dondaine, Thibaut, van der Giessen, Ruben S., Godefroy, Olivier, Verne, Jules, Gyanwali, Bibek, Hamilton, Olivia K.L., Hilal, Saima, Wajer, Irene M.C. Huenges, Kang, Yeonwook, Kappelle, L. Jaap, Kim, Beom Joon, Köhler, Sebastian, de Kort, Paul L.M., Koudstaal, Peter J., Kuchcinski, Gregory, Lam, Bonnie Y.K., Lee, Byung-Chul, Lee, Keon-Joo, Lim, Jae-Sung, Lopes, Renaud, Makin, Stephen D.J., Mendyk, Anne-Marie, Mok, Vincent C.T., Oh, Mi Sun, van Oostenbrugge, Robert J., Roussel, Martine, Shi, Lin, Staals, Julie, Valdés-Hernández, Maria del C., Venketasubramanian, Narayanaswamy, Verhey, Frans R.J., Wardlaw, Joanna M., Werring, David J., Xin, Xu, Yu, Kyung-Ho, van Zandvoort, Martine J.E., Zhao, Lei, and Biessels, Geert Jan

Published
2024
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13. The CODECS study:COgnitive DEficits in Cerebellar Stroke

Author

van der Giessen, Ruben S., Satoer, Djaina, Koudstaal, Peter J., van der Giessen, Ruben S., Satoer, Djaina, and Koudstaal, Peter J.

Abstract

Part of the extra-pyramidal system, the cerebellum is more and more recognized by its non-motor functions known as the cerebellar cognitive affective syndrome. Several studies have identified disturbances specifically in executive and attentional functions after focal cerebellar lesions. However, most studies were performed in small and heterogeneous patient groups. Furthermore, there is a substantial variation in the methodology of assessment. Here, we present the results of a large and homogeneous cohort of patients with isolated uniform cerebellar lesions. After three months post-stroke all patients underwent structural neuroimaging to confirm an isolated lesion and were given neuropsychological testing. The results show that cerebellar lesions relate to mild but long-term cognitive impairment in a broad spectrum of neurocognitive functions compared to normative values. These findings confirm involvement of the cerebellum in cognitive processing and supports the theory of ‘dysmetria of thought’ based upon uniform cerebellar processing in multiple cognitive domains. This study highlights the following results: 1-Cognitive impairments after isolated cerebellar stroke is confirmed in several cognitive domains. 2-Semantic and phonemic fluency are most affected in cerebellar stroke patients. 3-Verbal deficits show an age-independent long term effect post-stroke and should be studied further in depth. 4-Cognitive disorders after cerebellar stroke are more prominent in women than men.

Published
2023

14. White Matter Hyperintensity Volume and Poststroke Cognition:An Individual Patient Data Pooled Analysis of 9 Ischemic Stroke Cohort Studies

Author

De Kort, Floor A.S., Coenen, Mirthe, Weaver, Nick A., Kuijf, Hugo J., Aben, Hugo P., Bae, Hee Joon, Bordet, Régis, Cammà, Guido, Chen, Christopher P.L.H., Dewenter, Anna, Duering, Marco, Fang, Rong, Van Der Giessen, Ruben S., Hamilton, Olivia K.L., Hilal, Saima, Huenges Wajer, Irene M.C., Kan, Cheuk Ni, Kim, Jonguk, Kim, Beom Joon, Köhler, Sebastian, De Kort, Paul L.M., Koudstaal, Peter J., Lim, Jae Sung, Lopes, Renaud, Mok, Vincent C.T., Staals, Julie, Venketasubramanian, Narayanaswamy, Verhagen, Charlotte M., Verhey, Frans R.J., Wardlaw, Joanna M., Xu, Xin, Yu, Kyung Ho, Biesbroek, J. Matthijs, Biessels, Geert Jan, De Kort, Floor A.S., Coenen, Mirthe, Weaver, Nick A., Kuijf, Hugo J., Aben, Hugo P., Bae, Hee Joon, Bordet, Régis, Cammà, Guido, Chen, Christopher P.L.H., Dewenter, Anna, Duering, Marco, Fang, Rong, Van Der Giessen, Ruben S., Hamilton, Olivia K.L., Hilal, Saima, Huenges Wajer, Irene M.C., Kan, Cheuk Ni, Kim, Jonguk, Kim, Beom Joon, Köhler, Sebastian, De Kort, Paul L.M., Koudstaal, Peter J., Lim, Jae Sung, Lopes, Renaud, Mok, Vincent C.T., Staals, Julie, Venketasubramanian, Narayanaswamy, Verhagen, Charlotte M., Verhey, Frans R.J., Wardlaw, Joanna M., Xu, Xin, Yu, Kyung Ho, Biesbroek, J. Matthijs, and Biessels, Geert Jan

Abstract

BACKGROUND: White matter hyperintensities (WMH) are associated with cognitive dysfunction after ischemic stroke. Yet, uncertainty remains about affected domains, the role of other preexisting brain injury, and infarct types in the relation between WMH burden and poststroke cognition. We aimed to disentangle these factors in a large sample of patients with ischemic stroke from different cohorts. METHODS: We pooled and harmonized individual patient data (n=1568) from 9 cohorts, through the Meta VCI Map consortium (www.metavcimap.org). Included cohorts comprised patients with available magnetic resonance imaging and multidomain cognitive assessment <15 months poststroke. In this individual patient data meta-analysis, linear mixed models were used to determine the association between WMH volume and domain-specific cognitive functioning (Z scores; attention and executive functioning, processing speed, language and verbal memory) for the total sample and stratified by infarct type. Preexisting brain injury was accounted for in the multivariable models and all analyses were corrected for the study site as a random effect. RESULTS: In the total sample (67 years [SD, 11.5], 40% female), we found a dose-dependent inverse relationship between WMH volume and poststroke cognitive functioning across all 4 cognitive domains (coefficients ranging from -0.09 [SE, 0.04, P=0.01] for verbal memory to -0.19 [SE, 0.03, P<0.001] for attention and executive functioning). This relation was independent of acute infarct volume and the presence of lacunes and old infarcts. In stratified analyses, the relation between WMH volume and domain-specific functioning was also largely independent of infarct type.CONCLUSIONS: In patients with ischemic stroke, increasing WMH volume is independently associated with worse cognitive functioning across all major domains, regardless of old ischemic lesions and infarct type.

Published
2023

15. Sex Differences in Poststroke Cognitive Impairment:A Multicenter Study in 2343 Patients With Acute Ischemic Stroke

Author

Exalto, Lieza G., Weaver, Nick A., Kuijf, Hugo J., Aben, Hugo P., Bae, Hee Joon, Best, Jonathan G., Bordet, Régis, Chen, Christopher P.L.H., van der Giessen, Ruben S., Godefroy, Olivier, Gyanwali, Bibek, Hamilton, Olivia K.L., Hilal, Saima, Huenges Wajer, Irene M.C., Kim, Jonguk, Kappelle, L. Jaap, Kim, Beom Joon, Köhler, Sebastian, de Kort, Paul L.M., Koudstaal, Peter J., Lim, Jae Sung, Makin, Stephen D.J., Mok, Vincent C.T., van Oostenbrugge, Robert J., Roussel, Martine, Staals, Julie, Valdés-Hernández, Maria Del C., Venketasubramanian, Narayanaswamy, Verhey, Frans R.J., Wardlaw, Joanna M., Werring, David J., Xu, Xin, van Zandvoort, Martine J.E., Biesbroek, J. Matthijs, Chappell, Francesca M., Biessels, Geert Jan, Exalto, Lieza G., Weaver, Nick A., Kuijf, Hugo J., Aben, Hugo P., Bae, Hee Joon, Best, Jonathan G., Bordet, Régis, Chen, Christopher P.L.H., van der Giessen, Ruben S., Godefroy, Olivier, Gyanwali, Bibek, Hamilton, Olivia K.L., Hilal, Saima, Huenges Wajer, Irene M.C., Kim, Jonguk, Kappelle, L. Jaap, Kim, Beom Joon, Köhler, Sebastian, de Kort, Paul L.M., Koudstaal, Peter J., Lim, Jae Sung, Makin, Stephen D.J., Mok, Vincent C.T., van Oostenbrugge, Robert J., Roussel, Martine, Staals, Julie, Valdés-Hernández, Maria Del C., Venketasubramanian, Narayanaswamy, Verhey, Frans R.J., Wardlaw, Joanna M., Werring, David J., Xu, Xin, van Zandvoort, Martine J.E., Biesbroek, J. Matthijs, Chappell, Francesca M., and Biessels, Geert Jan

Abstract

BACKGROUND: Poststroke cognitive impairment (PSCI) occurs in about half of stroke survivors. Cumulative evidence indicates that functional outcomes of stroke are worse in women than men. Yet it is unknown whether the occurrence and characteristics of PSCI differ between men and women. METHODS: Individual patient data from 9 cohorts of patients with ischemic stroke were harmonized and pooled through the Meta-VCI-Map consortium (n=2343, 38% women). We included patients with visible symptomatic infarcts on computed tomography/magnetic resonance imaging and cognitive assessment within 15 months after stroke. PSCI was defined as impairment in ≥1 cognitive domains on neuropsychological assessment. Logistic regression analyses were performed to compare men to women, adjusted for study cohort, to obtain odds ratios for PSCI and individual cognitive domains. We also explored sensitivity and specificity of cognitive screening tools for detecting PSCI, according to sex (Mini-Mental State Examination, 4 cohorts, n=1814; Montreal Cognitive Assessment, 3 cohorts, n=278). RESULTS: PSCI was found in 51% of both women and men. Men had a lower risk of impairment of attention and executive functioning (men: odds ratio, 0.76 [95% CI, 0.61-0.96]), and language (men: odds ratio, 0.67 [95% CI, 0.45-0.85]), but a higher risk of verbal memory impairment (men: odds ratio, 1.43 [95% CI, 1.17-1.75]). The sensitivity of Mini-Mental State Examination (<25) for PSCI was higher for women (0.53) than for men (0.27; P=0.02), with a lower specificity for women (0.80) than men (0.96; P=0.01). Sensitivity and specificity of Montreal Cognitive Assessment (<26.) for PSCI was comparable between women and men (0.91 versus 0.86; P=0.62 and 0.29 versus 0.28; P=0.86, respectively). CONCLUSIONS: Sex was not associated with PSCI occurrence but affected domains differed between men and women. The latter may explain why sensitivity of the Mini-Mental State Examination for detecting PSCI was higher in wom

Published
2023

16. The integrated brain network that controls respiration

Author

Krohn, Friedrich, Novello, Manuele, van der Giessen, Ruben S., De Zeeuw, Chris I., Pel, Johan J.M., Bosman, Laurens W.J., Krohn, Friedrich, Novello, Manuele, van der Giessen, Ruben S., De Zeeuw, Chris I., Pel, Johan J.M., and Bosman, Laurens W.J.

Abstract

Respiration is a brain function on which our lives essentially depend. Control of respiration ensures that the frequency and depth of breathing adapt continuously to metabolic needs. In addition, the respiratory control network of the brain has to organize muscular synergies that integrate ventilation with posture and body movement. Finally, respiration is coupled to cardiovascular function and emotion. Here, we argue that the brain can handle this all by integrating a brainstem central pattern generator circuit in a larger network that also comprises the cerebellum. Although currently not generally recognized as a respiratory control center, the cerebellum is well known for its coordinating and modulating role in motor behavior, as well as for its role in the autonomic nervous system. In this review, we discuss the role of brain regions involved in the control of respiration, and their anatomical and functional interactions. We discuss how sensory feedback can result in adaptation of respiration, and how these mechanisms can be compromised by various neurological and psychological disorders. Finally, we demonstrate how the respiratory pattern generators are part of a larger and integrated network of respiratory brain regions.

Published
2023

17. White Matter Hyperintensity Volume and Poststroke Cognition: An Individual Patient Data Pooled Analysis of 9 Ischemic Stroke Cohort Studies

Author

Opleiding Neurologie, Beeldverwerking ISI, Brain, Cancer, Circulatory Health, Structure and Connections, Neurologie, Projectafdeling VCI, Neurologen, de Kort, Floor A S, Coenen, Mirthe, Weaver, Nick A, Kuijf, Hugo J, Aben, Hugo P, Bae, Hee-Joon, Bordet, Régis, Cammà, Guido, Chen, Christopher P L H, Dewenter, Anna, Duering, Marco, Fang, Rong, van der Giessen, Ruben S, Hamilton, Olivia K L, Hilal, Saima, Huenges Wajer, Irene M C, Kan, Cheuk Ni, Kim, Jonguk, Kim, Beom Joon, Köhler, Sebastian, de Kort, Paul L M, Koudstaal, Peter J, Lim, Jae-Sung, Lopes, Renaud, Mok, Vincent C T, Staals, Julie, Venketasubramanian, Narayanaswamy, Verhagen, Charlotte M, Verhey, Frans R J, Wardlaw, Joanna M, Xu, Xin, Yu, Kyung-Ho, Biesbroek, J Matthijs, Biessels, Geert Jan, Opleiding Neurologie, Beeldverwerking ISI, Brain, Cancer, Circulatory Health, Structure and Connections, Neurologie, Projectafdeling VCI, Neurologen, de Kort, Floor A S, Coenen, Mirthe, Weaver, Nick A, Kuijf, Hugo J, Aben, Hugo P, Bae, Hee-Joon, Bordet, Régis, Cammà, Guido, Chen, Christopher P L H, Dewenter, Anna, Duering, Marco, Fang, Rong, van der Giessen, Ruben S, Hamilton, Olivia K L, Hilal, Saima, Huenges Wajer, Irene M C, Kan, Cheuk Ni, Kim, Jonguk, Kim, Beom Joon, Köhler, Sebastian, de Kort, Paul L M, Koudstaal, Peter J, Lim, Jae-Sung, Lopes, Renaud, Mok, Vincent C T, Staals, Julie, Venketasubramanian, Narayanaswamy, Verhagen, Charlotte M, Verhey, Frans R J, Wardlaw, Joanna M, Xu, Xin, Yu, Kyung-Ho, Biesbroek, J Matthijs, and Biessels, Geert Jan

Published
2023

18. Sex Differences in Poststroke Cognitive Impairment: A Multicenter Study in 2343 Patients With Acute Ischemic Stroke

Author

Neurologen, Opleiding Neurologie, Beeldverwerking ISI, Brain, Cancer, Circulatory Health, Structure and Connections, Projectafdeling VCI, Neurologie, Neuropsychologie, Exalto, Lieza G, Weaver, Nick A, Kuijf, Hugo J, Aben, Hugo P, Bae, Hee-Joon, Best, Jonathan G, Bordet, Régis, Chen, Christopher P L H, van der Giessen, Ruben S, Godefroy, Olivier, Gyanwali, Bibek, Hamilton, Olivia K L, Hilal, Saima, Huenges Wajer, Irene M C, Kim, Jonguk, Kappelle, L Jaap, Kim, Beom Joon, Köhler, Sebastian, de Kort, Paul L M, Koudstaal, Peter J, Lim, Jae-Sung, Makin, Stephen D J, Mok, Vincent C T, van Oostenbrugge, Robert J, Roussel, Martine, Staals, Julie, Valdés-Hernández, Maria Del C, Venketasubramanian, Narayanaswamy, Verhey, Frans R J, Wardlaw, Joanna M, Werring, David J, Xu, Xin, van Zandvoort, Martine J E, Biesbroek, J Matthijs, Chappell, Francesca M, Biessels, Geert Jan, Neurologen, Opleiding Neurologie, Beeldverwerking ISI, Brain, Cancer, Circulatory Health, Structure and Connections, Projectafdeling VCI, Neurologie, Neuropsychologie, Exalto, Lieza G, Weaver, Nick A, Kuijf, Hugo J, Aben, Hugo P, Bae, Hee-Joon, Best, Jonathan G, Bordet, Régis, Chen, Christopher P L H, van der Giessen, Ruben S, Godefroy, Olivier, Gyanwali, Bibek, Hamilton, Olivia K L, Hilal, Saima, Huenges Wajer, Irene M C, Kim, Jonguk, Kappelle, L Jaap, Kim, Beom Joon, Köhler, Sebastian, de Kort, Paul L M, Koudstaal, Peter J, Lim, Jae-Sung, Makin, Stephen D J, Mok, Vincent C T, van Oostenbrugge, Robert J, Roussel, Martine, Staals, Julie, Valdés-Hernández, Maria Del C, Venketasubramanian, Narayanaswamy, Verhey, Frans R J, Wardlaw, Joanna M, Werring, David J, Xu, Xin, van Zandvoort, Martine J E, Biesbroek, J Matthijs, Chappell, Francesca M, and Biessels, Geert Jan

Published
2023

19. Network impact score is an independent predictor of post-stroke cognitive impairment:A multicenter cohort study in 2341 patients with acute ischemic stroke

Author

Biesbroek, J. Matthijs, Weaver, Nick A., Aben, Hugo P., Kuijf, Hugo J., Abrigo, Jill, Bae, Hee Joon, Barbay, Mélanie, Best, Jonathan G., Bordet, Régis, Chappell, Francesca M., Chen, Christopher P.L.H., Dondaine, Thibaut, van der Giessen, Ruben S., Godefroy, Olivier, Gyanwali, Bibek, Hamilton, Olivia K.L., Hilal, Saima, Huenges Wajer, Irene M.C., Kang, Yeonwook, Kappelle, L. Jaap, Kim, Beom Joon, Köhler, Sebastian, de Kort, Paul L.M., Koudstaal, Peter J., Kuchcinski, Gregory, Lam, Bonnie Y.K., Lee, Byung Chul, Lee, Keon Joo, Lim, Jae Sung, Lopes, Renaud, Makin, Stephen D.J., Mendyk, Anne Marie, Mok, Vincent C.T., Oh, Mi Sun, van Oostenbrugge, Robert J., Roussel, Martine, Shi, Lin, Staals, Julie, Valdés-Hernández, Maria del C., Venketasubramanian, Narayanaswamy, Verhey, Frans R.J., Wardlaw, Joanna M., Werring, David J., Xin, Xu, Yu, Kyung Ho, van Zandvoort, Martine J.E., Zhao, Lei, Biessels, Geert Jan, Biesbroek, J. Matthijs, Weaver, Nick A., Aben, Hugo P., Kuijf, Hugo J., Abrigo, Jill, Bae, Hee Joon, Barbay, Mélanie, Best, Jonathan G., Bordet, Régis, Chappell, Francesca M., Chen, Christopher P.L.H., Dondaine, Thibaut, van der Giessen, Ruben S., Godefroy, Olivier, Gyanwali, Bibek, Hamilton, Olivia K.L., Hilal, Saima, Huenges Wajer, Irene M.C., Kang, Yeonwook, Kappelle, L. Jaap, Kim, Beom Joon, Köhler, Sebastian, de Kort, Paul L.M., Koudstaal, Peter J., Kuchcinski, Gregory, Lam, Bonnie Y.K., Lee, Byung Chul, Lee, Keon Joo, Lim, Jae Sung, Lopes, Renaud, Makin, Stephen D.J., Mendyk, Anne Marie, Mok, Vincent C.T., Oh, Mi Sun, van Oostenbrugge, Robert J., Roussel, Martine, Shi, Lin, Staals, Julie, Valdés-Hernández, Maria del C., Venketasubramanian, Narayanaswamy, Verhey, Frans R.J., Wardlaw, Joanna M., Werring, David J., Xin, Xu, Yu, Kyung Ho, van Zandvoort, Martine J.E., Zhao, Lei, and Biessels, Geert Jan

Abstract

Background: Post-stroke cognitive impairment (PSCI) is a common consequence of stroke. Accurate prediction of PSCI risk is challenging. The recently developed network impact score, which integrates information on infarct location and size with brain network topology, may improve PSCI risk prediction. Aims: To determine if the network impact score is an independent predictor of PSCI, and of cognitive recovery or decline. Methods: We pooled data from patients with acute ischemic stroke from 12 cohorts through the Meta VCI Map consortium. PSCI was defined as impairment in ≥ 1 cognitive domain on neuropsychological examination, or abnormal Montreal Cognitive Assessment. Cognitive recovery was defined as conversion from PSCI < 3 months post-stroke to no PSCI at follow-up, and cognitive decline as conversion from no PSCI to PSCI. The network impact score was related to serial measures of PSCI using Generalized Estimating Equations (GEE) models, and to PSCI stratified according to post-stroke interval (<3, 3–12, 12–24, >24 months) and cognitive recovery or decline using logistic regression. Models were adjusted for age, sex, education, prior stroke, infarct volume, and study site. Results: We included 2341 patients with 4657 cognitive assessments. PSCI was present in 398/844 patients (47%) <3 months, 709/1640 (43%) at 3–12 months, 243/853 (28%) at 12–24 months, and 208/522 (40%) >24 months. Cognitive recovery occurred in 64/181 (35%) patients and cognitive decline in 26/287 (9%). The network impact score predicted PSCI in the univariable (OR 1.50, 95%CI 1.34–1.68) and multivariable (OR 1.27, 95%CI 1.10–1.46) GEE model, with similar ORs in the logistic regression models for specified post-stroke intervals. The network impact score was not associated with cognitive recovery or decline. Conclusions: The network impact score is an independent predictor of PSCI. As such, the network impact score may contribute to a more precise and individualized cognitive pro

Published
2022

20. Network impact score is an independent predictor of post-stroke cognitive impairment: A multicenter cohort study in 2341 patients with acute ischemic stroke

Author

Projectafdeling VCI, Brain, Opleiding Neurologie, Beeldverwerking ISI, Circulatory Health, Cancer, Neurologie, Neurologen, Neuropsychologie, Structure and Connections, Biesbroek, J Matthijs, Weaver, Nick A, Aben, Hugo P, Kuijf, Hugo J, Abrigo, Jill, Bae, Hee-Joon, Barbay, Mélanie, Best, Jonathan G, Bordet, Régis, Chappell, Francesca M, Chen, Christopher P L H, Dondaine, Thibaut, van der Giessen, Ruben S, Godefroy, Olivier, Gyanwali, Bibek, Hamilton, Olivia K L, Hilal, Saima, Huenges Wajer, Irene M C, Kang, Yeonwook, Kappelle, L Jaap, Kim, Beom Joon, Köhler, Sebastian, de Kort, Paul L M, Koudstaal, Peter J, Kuchcinski, Gregory, Lam, Bonnie Y K, Lee, Byung-Chul, Lee, Keon-Joo, Lim, Jae-Sung, Lopes, Renaud, Makin, Stephen D J, Mendyk, Anne-Marie, Mok, Vincent C T, Oh, Mi Sun, van Oostenbrugge, Robert J, Roussel, Martine, Shi, Lin, Staals, Julie, Valdés-Hernández, Maria Del C, Venketasubramanian, Narayanaswamy, Verhey, Frans R J, Wardlaw, Joanna M, Werring, David J, Xin, Xu, Yu, Kyung-Ho, van Zandvoort, Martine J E, Zhao, Lei, Biessels, Geert Jan, Projectafdeling VCI, Brain, Opleiding Neurologie, Beeldverwerking ISI, Circulatory Health, Cancer, Neurologie, Neurologen, Neuropsychologie, Structure and Connections, Biesbroek, J Matthijs, Weaver, Nick A, Aben, Hugo P, Kuijf, Hugo J, Abrigo, Jill, Bae, Hee-Joon, Barbay, Mélanie, Best, Jonathan G, Bordet, Régis, Chappell, Francesca M, Chen, Christopher P L H, Dondaine, Thibaut, van der Giessen, Ruben S, Godefroy, Olivier, Gyanwali, Bibek, Hamilton, Olivia K L, Hilal, Saima, Huenges Wajer, Irene M C, Kang, Yeonwook, Kappelle, L Jaap, Kim, Beom Joon, Köhler, Sebastian, de Kort, Paul L M, Koudstaal, Peter J, Kuchcinski, Gregory, Lam, Bonnie Y K, Lee, Byung-Chul, Lee, Keon-Joo, Lim, Jae-Sung, Lopes, Renaud, Makin, Stephen D J, Mendyk, Anne-Marie, Mok, Vincent C T, Oh, Mi Sun, van Oostenbrugge, Robert J, Roussel, Martine, Shi, Lin, Staals, Julie, Valdés-Hernández, Maria Del C, Venketasubramanian, Narayanaswamy, Verhey, Frans R J, Wardlaw, Joanna M, Werring, David J, Xin, Xu, Yu, Kyung-Ho, van Zandvoort, Martine J E, Zhao, Lei, and Biessels, Geert Jan

Published
2022

21. Network impact score is an independent predictor of post-stroke cognitive impairment: A multicenter cohort study in 2341 patients with acute ischemic stroke

Author

Biesbroek, J. Matthijs, primary, Weaver, Nick A., additional, Aben, Hugo P., additional, Kuijf, Hugo J., additional, Abrigo, Jill, additional, Bae, Hee-Joon, additional, Barbay, Mélanie, additional, Best, Jonathan G., additional, Bordet, Régis, additional, Chappell, Francesca M., additional, Chen, Christopher P.L.H., additional, Dondaine, Thibaut, additional, van der Giessen, Ruben S., additional, Godefroy, Olivier, additional, Gyanwali, Bibek, additional, Hamilton, Olivia K.L., additional, Hilal, Saima, additional, Huenges Wajer, Irene M.C., additional, Kang, Yeonwook, additional, Kappelle, L. Jaap, additional, Kim, Beom Joon, additional, Köhler, Sebastian, additional, de Kort, Paul L.M., additional, Koudstaal, Peter J., additional, Kuchcinski, Gregory, additional, Lam, Bonnie Y.K., additional, Lee, Byung-Chul, additional, Lee, Keon-Joo, additional, Lim, Jae-Sung, additional, Lopes, Renaud, additional, Makin, Stephen D.J., additional, Mendyk, Anne-Marie, additional, Mok, Vincent C.T., additional, Oh, Mi Sun, additional, van Oostenbrugge, Robert J., additional, Roussel, Martine, additional, Shi, Lin, additional, Staals, Julie, additional, Valdés-Hernández, Maria del C., additional, Venketasubramanian, Narayanaswamy, additional, Verhey, Frans R.J., additional, Wardlaw, Joanna M., additional, Werring, David J., additional, Xin, Xu, additional, Yu, Kyung-Ho, additional, van Zandvoort, Martine J.E., additional, Zhao, Lei, additional, and Biessels, Geert Jan, additional

Published
2022
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22. Strategic infarct locations for post-stroke cognitive impairment: a pooled analysis of individual patient data from 12 acute ischaemic stroke cohorts

Author

Projectafdeling VCI, Beeldverwerking ISI, Brain, Cancer, Neurologie, Neurologen, Circulatory Health, ZL Algemene Neurologie Medisch, Weaver, Nick A., Kuijf, Hugo J., Aben, Hugo P., Abrigo, Jill, Bae, Hee Joon, Barbay, Mélanie, Best, Jonathan G., Bordet, Régis, Chappell, Francesca M., Chen, Christopher P.L.H., Dondaine, Thibaut, van der Giessen, Ruben S., Godefroy, Olivier, Gyanwali, Bibek, Hamilton, Olivia K.L., Hilal, Saima, Huenges Wajer, Irene M.C., Kang, Yeonwook, Kappelle, L. Jaap, Kim, Beom Joon, Köhler, Sebastian, de Kort, Paul L.M., Koudstaal, Peter J., Kuchcinski, Gregory, Lam, Bonnie Y.K., Lee, Byung Chul, Lee, Keon Joo, Lim, Jae Sung, Lopes, Renaud, Makin, Stephen D.J., Mendyk, Anne Marie, Mok, Vincent C.T., Oh, Mi Sun, van Oostenbrugge, Robert J., Roussel, Martine, Shi, Lin, Staals, Julie, Del C Valdés-Hernández, Maria, Venketasubramanian, Narayanaswamy, Verhey, Frans R.J., Wardlaw, Joanna M., Werring, David J., Xin, Xu, Yu, Kyung Ho, van Zandvoort, Martine J.E., Zhao, Lei, Biesbroek, J. Matthijs, Biessels, Geert Jan, Projectafdeling VCI, Beeldverwerking ISI, Brain, Cancer, Neurologie, Neurologen, Circulatory Health, ZL Algemene Neurologie Medisch, Weaver, Nick A., Kuijf, Hugo J., Aben, Hugo P., Abrigo, Jill, Bae, Hee Joon, Barbay, Mélanie, Best, Jonathan G., Bordet, Régis, Chappell, Francesca M., Chen, Christopher P.L.H., Dondaine, Thibaut, van der Giessen, Ruben S., Godefroy, Olivier, Gyanwali, Bibek, Hamilton, Olivia K.L., Hilal, Saima, Huenges Wajer, Irene M.C., Kang, Yeonwook, Kappelle, L. Jaap, Kim, Beom Joon, Köhler, Sebastian, de Kort, Paul L.M., Koudstaal, Peter J., Kuchcinski, Gregory, Lam, Bonnie Y.K., Lee, Byung Chul, Lee, Keon Joo, Lim, Jae Sung, Lopes, Renaud, Makin, Stephen D.J., Mendyk, Anne Marie, Mok, Vincent C.T., Oh, Mi Sun, van Oostenbrugge, Robert J., Roussel, Martine, Shi, Lin, Staals, Julie, Del C Valdés-Hernández, Maria, Venketasubramanian, Narayanaswamy, Verhey, Frans R.J., Wardlaw, Joanna M., Werring, David J., Xin, Xu, Yu, Kyung Ho, van Zandvoort, Martine J.E., Zhao, Lei, Biesbroek, J. Matthijs, and Biessels, Geert Jan

Published
2021

25. The Meta VCI Map consortium for meta-analyses on strategic lesion locations for vascular cognitive impairment using lesion-symptom mapping: Design and multicenter pilot study

Author

ZL Algemene Neurologie Medisch, Opleiding Neurologie, Brain, Beeldverwerking ISI, Circulatory Health, Weaver, Nick A, Zhao, Lei, Biesbroek, J Matthijs, Kuijf, Hugo J, Aben, Hugo P, Bae, Hee-Joon, Caballero, Miguel Á A, Chappell, Francesca M, Chen, Christopher P L H, Dichgans, Martin, Duering, Marco, Georgakis, Marios K, van der Giessen, Ruben S, Gyanwali, Bibek, Hamilton, Olivia K L, Hilal, Saima, Vom Hofe, Elise M, de Kort, Paul L M, Koudstaal, Peter J, Lam, Bonnie Y K, Lim, Jae-Sung, Makin, Stephen D J, Mok, Vincent C T, Shi, Lin, Valdés Hernández, Maria C, Venketasubramanian, Narayanaswamy, Wardlaw, Joanna M, Wollenweber, Frank A, Wong, Adrian, Xin, Xu, Meta VCI Map consortium, Biessels, Geert Jan, ZL Algemene Neurologie Medisch, Opleiding Neurologie, Brain, Beeldverwerking ISI, Circulatory Health, Weaver, Nick A, Zhao, Lei, Biesbroek, J Matthijs, Kuijf, Hugo J, Aben, Hugo P, Bae, Hee-Joon, Caballero, Miguel Á A, Chappell, Francesca M, Chen, Christopher P L H, Dichgans, Martin, Duering, Marco, Georgakis, Marios K, van der Giessen, Ruben S, Gyanwali, Bibek, Hamilton, Olivia K L, Hilal, Saima, Vom Hofe, Elise M, de Kort, Paul L M, Koudstaal, Peter J, Lam, Bonnie Y K, Lim, Jae-Sung, Makin, Stephen D J, Mok, Vincent C T, Shi, Lin, Valdés Hernández, Maria C, Venketasubramanian, Narayanaswamy, Wardlaw, Joanna M, Wollenweber, Frank A, Wong, Adrian, Xin, Xu, Meta VCI Map consortium, and Biessels, Geert Jan

Published
2019

28. Role of Olivary Electrical Coupling in Cerebellar Motor Learning

Author

Van Der Giessen, Ruben S., primary, Koekkoek, Sebastiaan K., additional, van Dorp, Stijn, additional, De Gruijl, Jornt R., additional, Cupido, Alexander, additional, Khosrovani, Sara, additional, Dortland, Bjorn, additional, Wellershaus, Kerstin, additional, Degen, Joachim, additional, Deuchars, Jim, additional, Fuchs, Elke C., additional, Monyer, Hannah, additional, Willecke, Klaus, additional, De Jeu, Marcel T.G., additional, and De Zeeuw, Chris I., additional

Published
2008
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30. Deformation of Network Connectivity in the Inferior Olive of Connexin 36-Deficient Mice Is Compensated by Morphological and Electrophysiological Changes at the Single Neuron Level

Author

De Zeeuw, Chris I., primary, Chorev, Edilzh, additional, Devor, Anna, additional, Manor, Yait, additional, Van Der Giessen, Ruben S., additional, De Jeu, Marcel T., additional, Hoogenraad, Casper C., additional, Bijman, Jan, additional, Ruigrok, Tom J. H., additional, French, Pim, additional, Jaarsma, Dick, additional, Kistler, Werner M., additional, Meier, Carola, additional, Petrasch-Parwez, Elisabeth, additional, Dermietzel, Rolf, additional, Sohl, Goran, additional, Gueldenagel, Martin, additional, Willecke, Klaus, additional, and Yarom, Yosi, additional

Published
2003
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31. The Meta VCI Map consortium for meta-analyses on strategic lesion locations for vascular cognitive impairment using lesion-symptom mapping: Design and multicenter pilot study.

Author

Weaver NA, Zhao L, Biesbroek JM, Kuijf HJ, Aben HP, Bae HJ, Caballero MÁA, Chappell FM, Chen CPLH, Dichgans M, Duering M, Georgakis MK, van der Giessen RS, Gyanwali B, Hamilton OKL, Hilal S, Vom Hofe EM, de Kort PLM, Koudstaal PJ, Lam BYK, Lim JS, Makin SDJ, Mok VCT, Shi L, Valdés Hernández MC, Venketasubramanian N, Wardlaw JM, Wollenweber FA, Wong A, Xin X, and Biessels GJ

Abstract

Introduction: The Meta VCI Map consortium performs meta-analyses on strategic lesion locations for vascular cognitive impairment using lesion-symptom mapping. Integration of data from different cohorts will increase sample sizes, to improve brain lesion coverage and support comprehensive lesion-symptom mapping studies., Methods: Cohorts with available imaging on white matter hyperintensities or infarcts and cognitive testing were invited. We performed a pilot study to test the feasibility of multicenter data processing and analysis and determine the benefits to lesion coverage., Results: Forty-seven groups have joined Meta VCI Map (stroke n = 7800 patients; memory clinic n = 4900; population-based n = 14,400). The pilot study (six ischemic stroke cohorts, n = 878) demonstrated feasibility of multicenter data integration (computed tomography/magnetic resonance imaging) and achieved marked improvement of lesion coverage., Discussion: Meta VCI Map will provide new insights into the relevance of vascular lesion location for cognitive dysfunction. After the successful pilot study, further projects are being prepared. Other investigators are welcome to join.

Published
2019
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32. Anti-malaria drug mefloquine induces motor learning deficits in humans.

Author

van Essen TA, van der Giessen RS, Koekkoek SK, Vanderwerf F, Zeeuw CI, van Genderen PJ, Overbosch D, and de Jeu MT

Abstract

Mefloquine (a marketed anti-malaria drug) prophylaxis has a high risk of causing adverse events. Interestingly, animal studies have shown that mefloquine imposes a major deficit in motor learning skills by affecting the connexin 36 gap junctions of the inferior olive. We were therefore interested in assessing whether mefloquine might induce similar effects in humans. The main aim of this study was to investigate the effect of mefloquine on olivary-related motor performance and motor learning tasks in humans. We subjected nine participants to voluntary motor timing (dart throwing task), perceptual timing (rhythm perceptual task) and reflex timing tasks (eye-blink task) before and 24 h after the intake of mefloquine. The influence of mefloquine on motor learning was assessed by subjecting participants with and without mefloquine intake (controls: n = 11 vs mefloquine: n = 8) to an eye-blink conditioning task. Voluntary motor performance, perceptual timing, and reflex blinking were not affected by mefloquine use. However, the influence of mefloquine on motor learning was substantial; both learning speed as well as learning capacity was impaired by mefloquine use. Our data suggest that mefloquine disturbs motor learning skills. This adverse effect can have clinical as well as social clinical implications for mefloquine users. Therefore, this side-effect of mefloquine should be further investigated and recognized by clinicians.

Published
2010
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