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  1. Article ; Online: Automated Detection of Tonic-Clonic Seizures Using 3-D Accelerometry and Surface Electromyography in Pediatric Patients.

    Milosevic, Milica / Van de Vel, Anouk / Bonroy, Bert / Ceulemans, Berten / Lagae, Lieven / Vanrumste, Bart / Huffel, Sabine Van

    IEEE journal of biomedical and health informatics

    2016  Volume 20, Issue 5, Page(s) 1333–1341

    Abstract: Epileptic seizure detection is traditionally done using video/electroencephalography monitoring, which is not applicable for long-term home monitoring. In recent years, attempts have been made to detect the seizures using other modalities. In this study, ...

    Abstract Epileptic seizure detection is traditionally done using video/electroencephalography monitoring, which is not applicable for long-term home monitoring. In recent years, attempts have been made to detect the seizures using other modalities. In this study, we investigated the application of four accelerometers (ACM) attached to the limbs and surface electromyography (sEMG) electrodes attached to upper arms for the detection of tonic-clonic seizures. sEMG can identify the tension during the tonic phase of tonic-clonic seizure, while ACM is able to detect rhythmic patterns of the clonic phase of tonic-clonic seizures. Machine learning techniques, including feature selection and least-squares support vector machine classification, were employed for detection of tonic-clonic seizures from ACM and sEMG signals. In addition, the outputs of ACM and sEMG-based classifiers were combined using a late integration approach. The algorithms were evaluated on 1998.3 h of data recorded nocturnally in 56 patients of which seven had 22 tonic-clonic seizures. A multimodal approach resulted in a more robust detection of short and nonstereotypical seizures (91%), while the number of false alarms increased significantly compared with the use of single sEMG modality (0.28-0.5/12h). This study also showed that the choice of the recording system should be made depending on the prevailing pediatric patient-specific seizure characteristics and nonepileptic behavior.
    Language English
    Publishing date 2016-09
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2695320-1
    ISSN 2168-2208 ; 2168-2194
    ISSN (online) 2168-2208
    ISSN 2168-2194
    DOI 10.1109/JBHI.2015.2462079
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article: An essential oligomannosidic glycan chain in the catalytic domain of autotaxin, a secreted lysophospholipase-D.

    Jansen, Silvia / Callewaert, Nico / Dewerte, Isabelle / Andries, Maria / Ceulemans, Hugo / Bollen, Mathieu

    The Journal of biological chemistry

    2007  Volume 282, Issue 15, Page(s) 11084–11091

    Abstract: Autotaxin/NPP2, a secreted lysophospholipase-D, promotes cell proliferation, survival, and motility ...

    Abstract Autotaxin/NPP2, a secreted lysophospholipase-D, promotes cell proliferation, survival, and motility by generating the signaling molecule lysophosphatidic acid. Here we show that ectonucleotide pyrophosphatase/phosphodiesterase 2 (NPP2) is N-glycosylated on Asn-53, Asn-410, and Asn-524. Mutagenesis and deglycosylation experiments revealed that only the glycosylation of Asn-524 is essential for the expression of the catalytic and motility-stimulating activities of NPP2. The N-glycan on Asn-524 was identified as Man8/9GlcNAc2, which is rarely present on mature eukaryotic glycoproteins. Additional studies show that this Asn-524-linked glycan is not accessible to alpha-1,2-mannosidase, suggesting that its non-reducing termini are buried inside the folded protein. Consistent with a structural role for the Asn-524-linked glycan, only the mutation of Asn-524 augmented the sensitivity of NPP2 to proteolysis and increased its mobility during Blue Native PAGE. Asn-524 is phylogenetically conserved and maps to the catalytic domain of NPP2, but a structural model of this domain suggests that Asn-524 is remote from the catalytic site. Our study defines an essential role for the Asn-524-linked glycan chain of NPP2.
    MeSH term(s) Amino Acid Sequence ; Animals ; Asparagine/genetics ; Asparagine/metabolism ; Carbohydrate Conformation ; Catalytic Domain ; Cell Line ; Conserved Sequence ; Enzyme Activation ; Glycoside Hydrolases/metabolism ; Glycosylation ; Humans ; Models, Molecular ; Molecular Sequence Data ; Mutation/genetics ; Oligosaccharides/chemistry ; Oligosaccharides/metabolism ; Phosphoric Diester Hydrolases/chemistry ; Phosphoric Diester Hydrolases/genetics ; Phosphoric Diester Hydrolases/metabolism ; Pyrophosphatases/chemistry ; Pyrophosphatases/genetics ; Pyrophosphatases/metabolism ; Rats ; Sequence Alignment
    Chemical Substances Oligosaccharides ; oligomannoside ; Asparagine (7006-34-0) ; Phosphoric Diester Hydrolases (EC 3.1.4.-) ; alkylglycerophosphoethanolamine phosphodiesterase (EC 3.1.4.39) ; Glycoside Hydrolases (EC 3.2.1.-) ; Pyrophosphatases (EC 3.6.1.-)
    Language English
    Publishing date 2007-02-16
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2997-x
    ISSN 1083-351X ; 0021-9258
    ISSN (online) 1083-351X
    ISSN 0021-9258
    DOI 10.1074/jbc.M611503200
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Recurrent Isolated Sixth Nerve Palsy in Childhood-Review on a Rare Phenomenon.

    Kingma, Sandra D K / Ceulemans, Berten

    Neuropediatrics

    2022  Volume 53, Issue 3, Page(s) 151–158

    Abstract: Sixth nerve palsy is an ominous sign in pediatric neurology. Due to the long and tortuous course of the sixth (abducens) nerve, it is generally considered a sign of intracranial pathology. Sixth nerve palsy is associated with increased intracranial ... ...

    Abstract Sixth nerve palsy is an ominous sign in pediatric neurology. Due to the long and tortuous course of the sixth (abducens) nerve, it is generally considered a sign of intracranial pathology. Sixth nerve palsy is associated with increased intracranial pressure and neoplasms, among other less frequent causes. In ∼5 to 15% of cases, no cause can be identified. These cases are classified as idiopathic or "benign" and recovery is typically complete. A recurrence of symptoms is very rare. We provide a rare case report of recurrent benign sixth nerve palsy in a 5-year-old child. In addition, we provide an overview of all earlier published cases of recurrent isolated sixth nerve palsy. To date, only 72 pediatric patients with recurrent isolated sixth nerve palsy have been reported. Young females with left-sided sixth nerve palsy and recent immunization are at risk of recurrence. Pathophysiological mechanisms have been discussed, but have yet to be clarified. Recurrent isolated sixth nerve palsy is only rarely associated with severe causes and the need for extensive investigation may be questioned.
    MeSH term(s) Abducens Nerve ; Abducens Nerve Diseases/complications ; Abducens Nerve Diseases/etiology ; Child ; Child, Preschool ; Female ; Humans ; Intracranial Hypertension
    Language English
    Publishing date 2022-01-06
    Publishing country Germany
    Document type Case Reports ; Journal Article
    ZDB-ID 573291-8
    ISSN 1439-1899 ; 0174-304X
    ISSN (online) 1439-1899
    ISSN 0174-304X
    DOI 10.1055/s-0041-1741385
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Pregnancy after bariatic surgery and the risk of pre-eclampsia.

    Devlieger, R / Ceulemans, D

    BJOG : an international journal of obstetrics and gynaecology

    2021  Volume 129, Issue 3, Page(s) 472

    MeSH term(s) Female ; Humans ; Pre-Eclampsia/epidemiology ; Pregnancy ; Risk Factors
    Language English
    Publishing date 2021-11-08
    Publishing country England
    Document type Journal Article ; Comment
    ZDB-ID 2000931-8
    ISSN 1471-0528 ; 0306-5456 ; 1470-0328
    ISSN (online) 1471-0528
    ISSN 0306-5456 ; 1470-0328
    DOI 10.1111/1471-0528.16959
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article: Land-cover change: quantification metrics for perforation using 2-D gap features.

    Bogaer, J / Salvador Van Eysenrode, D / Van Hecke, P / Impens, I / Ceulemans, R

    Acta biotheoretica

    2001  Volume 49, Issue 3, Page(s) 161–169

    Abstract: ... to quantify perforation by using the three main 2-D characteristics of the gaps: area, number and boundary ... to the map resolution is assumed. The new measures are combined using a 3-D Euclidean distance to visualize ...

    Abstract Perforation or gap formation in a vegetation is a major process in landscape transformation. The occurrence of gaps profoundly alters the microclimatical conditions in a vegetation. A method is proposed to quantify perforation by using the three main 2-D characteristics of the gaps: area, number and boundary length. New measures are developed by normalizing the observed values to the reference status of minimum and maximum perforation. As minimum perforation status, the presence of one single gap with area equal to the map resolution is assumed. The new measures are combined using a 3-D Euclidean distance to visualize the process and to detect changes. The method is exemplified using a field case of gaps in a tropical terra firme rainforest at Tiputini, Ecuador.
    MeSH term(s) Ecosystem ; Ecuador ; Mathematical Computing ; Models, Biological ; Models, Statistical ; Rain ; Trees
    Language English
    Publishing date 2001-08-24
    Publishing country Netherlands
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 63-2
    ISSN 1572-8358 ; 0001-5342
    ISSN (online) 1572-8358
    ISSN 0001-5342
    DOI 10.1023/a:1011993109258
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Is Maternal Metabolic Bariatric Surgery the Best Solution to Tackle the Childhood Obesity Pandemic?

    Van De Maele, Karolien / Ceulemans, Dries / Devlieger, Roland

    JAMA surgery

    2023  Volume 158, Issue 8, Page(s) 891–892

    MeSH term(s) Child ; Humans ; Pediatric Obesity/epidemiology ; Pediatric Obesity/prevention & control ; Pediatric Obesity/surgery ; Pandemics/prevention & control ; Bariatric Surgery ; Family ; Obesity, Morbid/epidemiology ; Obesity, Morbid/surgery
    Language English
    Publishing date 2023-04-26
    Publishing country United States
    Document type Letter ; Comment
    ZDB-ID 2701841-6
    ISSN 2168-6262 ; 2168-6254
    ISSN (online) 2168-6262
    ISSN 2168-6254
    DOI 10.1001/jamasurg.2023.0930
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: A new approach to cervical cerclage using a hydro-instillation technique.

    Ceulemans, Dries / May, Grover / Baekelandt, Jan

    Asian journal of surgery

    2023  Volume 46, Issue 8, Page(s) 3271–3272

    MeSH term(s) Pregnancy ; Female ; Humans ; Cerclage, Cervical/methods ; Cervix Uteri
    Language English
    Publishing date 2023-03-22
    Publishing country Netherlands
    Document type Letter
    ZDB-ID 1068461-x
    ISSN 0219-3108 ; 1015-9584
    ISSN (online) 0219-3108
    ISSN 1015-9584
    DOI 10.1016/j.asjsur.2023.03.028
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Evaluating dynamics in affect structure with latent Markov factor analysis.

    Vogelsmeier, Leonie V D E / Cloos, Leonie / Kuppens, Peter / Ceulemans, Eva

    Emotion (Washington, D.C.)

    2023  Volume 24, Issue 3, Page(s) 782–794

    Abstract: In intensive longitudinal research, researchers typically consider the structure of affect to be stable across individuals and contexts. Based on an assumed theoretical structure (e.g., one bipolar or two separate positive and negative affect constructs), ...

    Abstract In intensive longitudinal research, researchers typically consider the structure of affect to be stable across individuals and contexts. Based on an assumed theoretical structure (e.g., one bipolar or two separate positive and negative affect constructs), researchers create affect scores from items (e.g., sum or factor scores) and use them to examine the dynamics therein. However, researchers usually ignore that the affect structure itself is dynamic and varies across individuals and contexts. Understanding these dynamics provides valuable insights into individuals' affective experiences. This study uses latent Markov factor analysis (LMFA) to study what affect structures underlie individuals' responses, how individuals transition between structures, and whether their individual transition patterns differ. Moreover, we explore whether the intensity of negative events and the personality trait
    MeSH term(s) Humans ; Affect/physiology ; Neuroticism ; Individuality ; Factor Analysis, Statistical
    Language English
    Publishing date 2023-10-12
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2102391-8
    ISSN 1931-1516 ; 1528-3542
    ISSN (online) 1931-1516
    ISSN 1528-3542
    DOI 10.1037/emo0001307
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article: An Essential Oligomannosidic Glycan Chain in the Catalytic Domain of Autotaxin, a Secreted Lysophospholipase-D

    Jansen, Silvia / Callewaert, Nico / Dewerte, Isabelle / Andries, Maria / Ceulemans, Hugo / Bollen, Mathieu

    Journal of biological chemistry. 2007 Apr. 13, v. 282, no. 15

    2007  

    Abstract: Autotaxin/NPP2, a secreted lysophospholipase-D, promotes cell proliferation, survival, and motility ...

    Abstract Autotaxin/NPP2, a secreted lysophospholipase-D, promotes cell proliferation, survival, and motility by generating the signaling molecule lysophosphatidic acid. Here we show that ectonucleotide pyrophosphatase/phosphodiesterase 2 (NPP2) is N-glycosylated on Asn-53, Asn-410, and Asn-524. Mutagenesis and deglycosylation experiments revealed that only the glycosylation of Asn-524 is essential for the expression of the catalytic and motility-stimulating activities of NPP2. The N-glycan on Asn-524 was identified as Man₈/₉GlcNAc₂, which is rarely present on mature eukaryotic glycoproteins. Additional studies show that this Asn-524-linked glycan is not accessible to α-1,2-mannosidase, suggesting that its non-reducing termini are buried inside the folded protein. Consistent with a structural role for the Asn-524-linked glycan, only the mutation of Asn-524 augmented the sensitivity of NPP2 to proteolysis and increased its mobility during Blue Native PAGE. Asn-524 is phylogenetically conserved and maps to the catalytic domain of NPP2, but a structural model of this domain suggests that Asn-524 is remote from the catalytic site. Our study defines an essential role for the Asn-524-linked glycan chain of NPP2.
    Language English
    Dates of publication 2007-0413
    Size p. 11084-11091.
    Publishing place American Society for Biochemistry and Molecular Biology
    Document type Article
    ZDB-ID 2997-x
    ISSN 1083-351X ; 0021-9258
    ISSN (online) 1083-351X
    ISSN 0021-9258
    Database NAL-Catalogue (AGRICOLA)

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  10. Article: Recurrent Isolated Sixth Nerve Palsy in Childhood—Review on a Rare Phenomenon

    Kingma, Sandra D. K. / Ceulemans, Berten

    Neuropediatrics

    2022  Volume 53, Issue 03, Page(s) 151–158

    Abstract: Sixth nerve palsy is an ominous sign in pediatric neurology. Due to the long and tortuous course of the sixth (abducens) nerve, it is generally considered a sign of intracranial pathology. Sixth nerve palsy is associated with increased intracranial ... ...

    Abstract Sixth nerve palsy is an ominous sign in pediatric neurology. Due to the long and tortuous course of the sixth (abducens) nerve, it is generally considered a sign of intracranial pathology. Sixth nerve palsy is associated with increased intracranial pressure and neoplasms, among other less frequent causes. In ∼5 to 15% of cases, no cause can be identified. These cases are classified as idiopathic or “benign” and recovery is typically complete. A recurrence of symptoms is very rare. We provide a rare case report of recurrent benign sixth nerve palsy in a 5-year-old child. In addition, we provide an overview of all earlier published cases of recurrent isolated sixth nerve palsy. To date, only 72 pediatric patients with recurrent isolated sixth nerve palsy have been reported. Young females with left-sided sixth nerve palsy and recent immunization are at risk of recurrence. Pathophysiological mechanisms have been discussed, but have yet to be clarified. Recurrent isolated sixth nerve palsy is only rarely associated with severe causes and the need for extensive investigation may be questioned.
    Keywords sixth nerve palsy ; abducens palsy ; recurrence ; child
    Language English
    Publishing date 2022-01-06
    Publisher Georg Thieme Verlag KG
    Publishing place Stuttgart ; New York
    Document type Article
    ZDB-ID 573291-8
    ISSN 1439-1899 ; 0174-304X
    ISSN (online) 1439-1899
    ISSN 0174-304X
    DOI 10.1055/s-0041-1741385
    Database Thieme publisher's database

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