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  1. Article: [Besprechung von:] Laar, J. J. M. van de: Opperbankier en wetenschapsman Willem Cornelis Mees 1813-1884. ʹs-Gravenhage 1978

    Roo van Alderwerelt, D. de / Laar, J. J. M. van de

    De economist Vol. 128, No. 3 , p. 420-425

    1980  Volume 128, Issue 3, Page(s) 420–425

    Author's details D. de Roo van Alderwerelt
    Publisher Kluwer
    Publishing place Dordrecht
    Document type Article
    ZDB-ID 216123-0
    Database ECONomics Information System

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  2. Article ; Online: Reply.

    de Vet, C M / van Oostrum, N H M / Clur, S B / Oei, S G / van Laar, J O E H

    Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology

    2023  Volume 62, Issue 3, Page(s) 448–449

    Language English
    Publishing date 2023-08-18
    Publishing country England
    Document type Letter
    ZDB-ID 1073183-0
    ISSN 1469-0705 ; 0960-7692
    ISSN (online) 1469-0705
    ISSN 0960-7692
    DOI 10.1002/uog.26317
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Deep Learing for Sparse Domain Kalman Filtering with Applications on ECG Denoising and Motility Estimation.

    Vries, I R de / Jong, A M de / Jagt, M B van der Hout-van der / Laar, J O E H van / Vullings, R

    IEEE transactions on bio-medical engineering

    2024  Volume PP

    Abstract: Objective: The reconstruction of an input based on a sparse combination of signals, known as sparse coding, has found widespread use in signal processing. In this work, the combination of sparse coding with Kalman filtering is explored and its potential ...

    Abstract Objective: The reconstruction of an input based on a sparse combination of signals, known as sparse coding, has found widespread use in signal processing. In this work, the combination of sparse coding with Kalman filtering is explored and its potential is shown on two use-cases.
    Methods: This work extends the Iterative Shrinkage and Thresholding Algorithm with a Kalman filter in the sparse domain. The resulting method may be implemented as a deep unfolded neural network and may be applied to any signal which has a sparse representation and a known or assumed relation between consecutive measurements. This method is evaluated on the use cases of noise reduction in the electrocardiogram (ECG) and the estimation of object motility.
    Results: For ECG denoising, the proposed method achieved an improvement in Signal-to-Noise ratio of 18.6dB, which is comparable to state-of-the-art. In motility estimation, a correlation of 0.84 with ground truth simulations was found.
    Conclusion: The proposed method was shown to have advantages over sparse coding and Kalman filtering alone. Due to the low complexity and high generalizability of the proposed method, the implementation of context-specific knowledge or an extension to other applications can be readily made.
    Significance: The presented Kalman-ISTA algorithm is a resource-efficient method combining the promise of both sparse coding and Kalman filtering, making it well-suited for various applications.
    Language English
    Publishing date 2024-02-21
    Publishing country United States
    Document type Journal Article
    ZDB-ID 160429-6
    ISSN 1558-2531 ; 0018-9294
    ISSN (online) 1558-2531
    ISSN 0018-9294
    DOI 10.1109/TBME.2024.3368105
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Concomitant prednisone may alleviate methotrexate side-effects in rheumatoid arthritis patients.

    van der Leeuw, Matthijs S / Tekstra, Janneke / van Laar, Jacob M / Welsing, Paco M J

    BMC rheumatology

    2023  Volume 7, Issue 1, Page(s) 8

    Abstract: Objectives: To evaluate whether addition of low-moderate dose prednisone to methotrexate (MTX) treatment can alleviate common MTX side-effects in rheumatoid arthritis (RA) patients.: Methods: We performed a post-hoc analysis of the CAMERA-II trial ... ...

    Abstract Objectives: To evaluate whether addition of low-moderate dose prednisone to methotrexate (MTX) treatment can alleviate common MTX side-effects in rheumatoid arthritis (RA) patients.
    Methods: We performed a post-hoc analysis of the CAMERA-II trial which randomized (1:1) 236 early DMARD and prednisone naive RA patients to treatment with MTX + prednisone 10 mg daily, or MTX monotherapy during two years. MTX dose was increased using a treat-to-target approach. We used Generalized Estimating Equations to model the occurrence of common MTX side-effects and of any adverse event over time, controlling for disease activity and MTX dose over time and other possible predictors of adverse events. To assess whether a possible effect was prednisone-specific, we performed the same analysis in the U-ACT-EARLY trial, in which the addition of tocilizumab (TCZ) to MTX was compared to MTX monotherapy in a comparable setting.
    Results: MTX side-effects were reported at 5.9% of visits in the prednisone-MTX group, compared to 11.2% in the MTX monotherapy group. After controlling for MTX dose and disease activity over time, treatment duration, age, sex, and baseline transaminase levels, addition of prednisone significantly decreased the occurrence of MTX side-effects (OR: 0.54, CI: 0.38-0.77, p = 0.001). Specifically, the occurrence of nausea (OR 0.46, CI: 0.26-0.83,  p = 0.009)) and elevated ALT/AST (OR 0.29, CI: 0.17-0.49, p  < 0.001) was decreased. There was a trend towards fewer overall adverse events in the prednisone-MTX arm (OR: 0.89, CI: 0.72-1.11, p = 0.30). No difference in MTX side-effects was found between TCZ-MTX and MTX monotherapy in U-ACT-EARLY (OR 1.05, CI: 0.61-1.80, p  = 0.87).
    Conclusion: Addition of 10 mg prednisone daily to MTX treatment in RA patients may ameliorate MTX side-effects, specifically nausea and elevated ALT/AST.
    Language English
    Publishing date 2023-05-17
    Publishing country England
    Document type Journal Article
    ZDB-ID 2918121-5
    ISSN 2520-1026 ; 2520-1026
    ISSN (online) 2520-1026
    ISSN 2520-1026
    DOI 10.1186/s41927-023-00331-0
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Conference proceedings: [No title information]

    Weitersberger, M / van de Laar, MA / Schoefl, R / Prevoo, M / Jastorff, J

    Zeitschrift für Gastroenterologie

    2022  Volume 60, Issue 08

    Event/congress 55. Jahrestagung & 32. Fortbildungskurs der Österreichischen Gesellschaft für Gastroenterologie & Hepatologie-ÖGGH (Hybrid Veranstaltung), Wien, 2022-09-07
    Language German
    Publishing date 2022-08-01
    Publisher Georg Thieme Verlag
    Publishing place Stuttgart ; New York
    Document type Article ; Conference proceedings
    ZDB-ID 201387-3
    ISSN 1439-7803 ; 0044-2771 ; 0172-8504
    ISSN (online) 1439-7803
    ISSN 0044-2771 ; 0172-8504
    DOI 10.1055/s-0042-1755762
    Database Thieme publisher's database

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  6. Article ; Online: Porto-sinusoidal vascular disorder and nephrotic-range proteinuria due to venous vasculitis in Behçet's disease.

    Annink, M E / van der Houwen, T B / Roelofs, J J T H / Takkenberg, R B / van Laar, J A M / van der Weerd, N C / Hak, A E / Kwakernaak, A J

    Clinical immunology (Orlando, Fla.)

    2024  , Page(s) 110207

    Abstract: Behçet's disease (BD) is an autoinflammatory disease of multifactorial and polygenic etiology, potentially involving arteries and veins of any size resulting in variable vessel vasculitis. We report a case of an Iranian male that presented with porto- ... ...

    Abstract Behçet's disease (BD) is an autoinflammatory disease of multifactorial and polygenic etiology, potentially involving arteries and veins of any size resulting in variable vessel vasculitis. We report a case of an Iranian male that presented with porto-sinusoidal vascular disorder due to venous vasculitis as initial manifestation of BD. Despite immunosuppression and anticoagulation, he subsequently developed severe nephrotic-range proteinuria that mimicked a primary renal disease but was completely and immediately ameliorated by stenting of the vena cava. This demonstrates that the proteinuria was caused by increased intraglomerular pressure due to venous outflow obstruction as a consequence of venous vasculitis. To our knowledge, this is the first report of massive proteinuria caused by venous obstruction of the caval vein in the context of Behçet's disease. Altogether, this case demonstrates the extensive spectrum of vascular disease in BD.
    Language English
    Publishing date 2024-04-10
    Publishing country United States
    Document type Journal Article
    ZDB-ID 1459903-x
    ISSN 1521-7035 ; 1521-6616
    ISSN (online) 1521-7035
    ISSN 1521-6616
    DOI 10.1016/j.clim.2024.110207
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Reply.

    de Vet, C M / van Oostrum, N H M / Clur, S B / van der Woude, D A A / Oei, S G / van Laar, J O E H

    Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology

    2023  Volume 61, Issue 2, Page(s) 275–277

    Language English
    Publishing date 2023-01-31
    Publishing country England
    Document type Letter ; Comment
    ZDB-ID 1073183-0
    ISSN 1469-0705 ; 0960-7692
    ISSN (online) 1469-0705
    ISSN 0960-7692
    DOI 10.1002/uog.26151
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article: Transient exposure to rotenone causes degeneration and progressive parkinsonian motor deficits, neuroinflammation, and synucleinopathy.

    Van Laar, Amber D / Webb, Katherine R / Keeney, Matthew T / Van Laar, Victor S / Zharikov, Alevtina / Burton, Edward A / Hastings, Teresa G / Glajch, Kelly E / Hirst, Warren D / Greenamyre, J Timothy / Rocha, Emily M

    NPJ Parkinson's disease

    2023  Volume 9, Issue 1, Page(s) 121

    Abstract: Individuals with Parkinson's disease (PD) typically receive a diagnosis once they have developed motor symptoms, at which point there is already significant loss of substantia nigra dopamine neurons, α-synuclein accumulation in surviving neurons, and ... ...

    Abstract Individuals with Parkinson's disease (PD) typically receive a diagnosis once they have developed motor symptoms, at which point there is already significant loss of substantia nigra dopamine neurons, α-synuclein accumulation in surviving neurons, and neuroinflammation. Consequently, the point of clinical presentation may be too late to initiate disease-modifying therapy. In contrast to this clinical reality, animal models often involve acute neurodegeneration and potential therapies are tested concurrently or shortly after the pathogenic insult has begun rather than later when diagnostic clinical symptoms emerge. Therefore, we sought to develop a model that reflects the clinical situation more accurately. Middle-aged rats (7-9 months-old) received a single daily intraperitoneal injection of rotenone for 5 consecutive days and were observed over the next 8-9 months. Rotenone-treated rats showed transient motor slowing and postural instability during exposure but recovered within 9 days of rotenone cessation. Rats remained without behavioral deficits for 3-4 months, then developed progressive motor abnormalities over the ensuing months. As motor abnormalities began to emerge 3 months after rotenone exposure, there was significant loss of nigral dopaminergic neurons and significant microglial activation. There was delayed accumulation of α-synuclein in neurons of the substantia nigra and frontal cortex, which was maximal at 9 months post-rotenone. In summary, a brief temporally-remote exposure to rotenone causes delayed and progressive behavioral and neuropathological changes similar to Parkinson's disease. This model mimics the human clinical situation, in which pathogenesis is well-established by the time diagnostic motor deficits appear. As such, this model may provide a more relevant experimental system in which to test disease-modifying therapeutics.
    Language English
    Publishing date 2023-08-11
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2819218-7
    ISSN 2373-8057
    ISSN 2373-8057
    DOI 10.1038/s41531-023-00561-6
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Impaired facial emotion recognition in relation to social behaviours in de novo Parkinson's disease.

    Slomp, Anne Carien / van der Zee, Sygrid / Boertien, Jeffrey M / Gerritsen, Marleen J J / van Laar, Teus / Spikman, Jacoba M

    Journal of neuropsychology

    2023  

    Abstract: Facial emotion recognition (FER) is a crucial component of social cognition and is essential in social-interpersonal behaviour regulation. Although FER impairment is well-established in advanced PD, data about FER at the time of diagnosis and its ... ...

    Abstract Facial emotion recognition (FER) is a crucial component of social cognition and is essential in social-interpersonal behaviour regulation. Although FER impairment is well-established in advanced PD, data about FER at the time of diagnosis and its relationship with social behavioural problems in daily life are lacking. The aim was to examine FER at the time of PD diagnosis compared to a matched healthy control (HC) group and to associate FER with indices of social behavioural problems. In total, 142 de novo, treatment-naïve PD patients and 142 HC were included. FER was assessed by the Ekman 60 faces test (EFT). Behavioural problems in PD patients were assessed using the Dysexecutive Questionnaire (DEX-self and DEX-proxy) and the Apathy Evaluation Scale (AES-self). PD patients had significantly lower EFT-total scores (p = .001) compared to HC, with worse recognition of Disgust (p = .001) and Sadness (p = .016). Correlational analyses yielded significant correlations between AES-self and both EFT-total (r
    Language English
    Publishing date 2023-07-24
    Publishing country England
    Document type Journal Article
    ZDB-ID 2380753-2
    ISSN 1748-6653 ; 1748-6645
    ISSN (online) 1748-6653
    ISSN 1748-6645
    DOI 10.1111/jnp.12341
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: Long-term data on efficacy and safety of adalimumab in Behçet's disease.

    van der Houwen, T B / Humer, B / Missotten, T O / Thiadens, A A H J / van Hagen, P M / van Laar, J A M

    Clinical immunology (Orlando, Fla.)

    2023  Volume 247, Page(s) 109242

    Abstract: Introduction: Behçet's disease (BD) is a systemic, inflammatory disorder affecting multiple organ systems, frequently treated with TNF-α blocking agents, as infliximab and adalimumab. Insights about long-term use of adalimumab are lacking. Therefore, we ...

    Abstract Introduction: Behçet's disease (BD) is a systemic, inflammatory disorder affecting multiple organ systems, frequently treated with TNF-α blocking agents, as infliximab and adalimumab. Insights about long-term use of adalimumab are lacking. Therefore, we conducted a study into the long-term efficacy and safety of adalimumab in BD.
    Methods: A retrospective cohort study from patients with BD treated with adalimumab in the Erasmus Medical Center was performed. Patients included were at least 18 years of age, diagnosed according to ISG criteria, and uninterruptedly used adalimumab for at least 36 months.
    Results: In a population of 39 BD patients using adalimumab, 29 patients persisted treatment >36 months (range 37-206 months). Indications for treatment were uveitis (n = 15) 51.7%, mucocutaneous involvement (n = 9) 31%, arthritis (n = 2) 6.9%, intestinal disease (n = 3) 10.3%. Overall, adalimumab decreased the occurrence of flares from 0.64 to 0.17 flares per year and BCVA improved subsequently. Also, a steady decline in BDCAF is reported over the course of at least 5 years. Subsequently, 79% was able to reduce their use of immunosuppressive agents aside from adalimumab. Adverse effects were reported in, (n = 15) 51.7% of which (n = 13) 86.6% were infectious complications. Two of those required inpatient hospital care.
    Conclusion: Our study illustrates durable long-term efficacy of adalimumab treatment in patients with BD. In our patient cohort long-term adalimumab treatment is safe, with a low incidence of serious adverse events.
    MeSH term(s) Humans ; Child, Preschool ; Adalimumab/adverse effects ; Behcet Syndrome/drug therapy ; Behcet Syndrome/complications ; Retrospective Studies ; Uveitis/drug therapy ; Immunosuppressive Agents/adverse effects ; Treatment Outcome
    Chemical Substances Adalimumab (FYS6T7F842) ; Immunosuppressive Agents
    Language English
    Publishing date 2023-01-28
    Publishing country United States
    Document type Journal Article
    ZDB-ID 1459903-x
    ISSN 1521-7035 ; 1521-6616
    ISSN (online) 1521-7035
    ISSN 1521-6616
    DOI 10.1016/j.clim.2023.109242
    Database MEDical Literature Analysis and Retrieval System OnLINE

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