286 results match your criteria: "Center for Neurosciences C4N[Affiliation]"

Blood-based multivariate methylation risk score for cognitive impairment and dementia.

Alzheimers Dement

October 2024

Department of Psychiatry and Neuropsychology, School for Mental Health and Neuroscience (MHeNs), Faculty of Health, Medicine and Life Sciences (FHML), Maastricht University, Maastricht, The Netherlands.

Article Synopsis
  • Blood-derived DNA methylation shows potential for early detection of dementia risk, linking biological factors with lifestyle and environmental influences.
  • A multivariate methylation risk score (MMRS) was developed, predicting mild cognitive impairment independently of age and sex, alongside significant future risk of cognitive decline in Alzheimer’s and Parkinson’s diseases.
  • The study highlights the integration of machine learning and omics data to enhance dementia risk prediction at the population level.
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Blood DNA methylomic signatures associated with CSF biomarkers of Alzheimer's disease in the EMIF-AD study.

Alzheimers Dement

October 2024

Department of Clinical and Biomedical Sciences, Faculty of Health and Life Sciences, University of Exeter, Exeter, Devon, UK.

Article Synopsis
  • The study examined DNA methylation patterns in blood samples related to 15 key biomarkers of Alzheimer's disease, focusing on neuroinflammation and neurodegeneration effects.
  • Using 885 samples from the EMIF-AD study, researchers identified significant differential methylation connected to CSF levels of YKL-40 and neurofilament light chain (NfL).
  • Findings suggest a link between YKL-40 DNA methylation and genetic variants, with implications for understanding how DNA methylation influences protein levels relevant to Alzheimer's disease.
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In the search for objective measures of therapeutic outcomes for patients with spinal cord stimulation (SCS) devices, various metrics of cardiac performance have been linked to pain as well as overall health. To track such measures at home, recent studies have incorporated wearables to monitor cardiac activity over months or years. The drawbacks to wearables, such as patient compliance, would be obviated by on-device sensing that incorporates the SCS lead.

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Background: Spinal Cord Stimulation (SCS) may provide pain relief in patients with therapy-refractory Persistent Spinal Pain Syndrome Type II (PSPS-T2). Despite the evidence that SCS can reduce disability and reduce pain medication usage, only 25% of the patients is able to completely omit pain medication usage after 12 months of SCS. To tackle the high burden of patients who consume a lot of pain medication, tapering programs could be initiated before starting a trajectory with SCS.

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ω-Grammotoxin-SIA inhibits voltage-gated Na+ channel currents.

J Gen Physiol

October 2024

Department of Basic and Applied Medical Sciences, Molecular Physiology and Neurophysics Group, Ghent University, Ghent, Belgium.

ω-Grammotoxin-SIA (GrTX-SIA) was originally isolated from the venom of the Chilean rose tarantula and demonstrated to function as a gating modifier of voltage-gated Ca2+ (CaV) channels. Later experiments revealed that GrTX-SIA could also inhibit voltage-gated K+ (KV) channel currents via a similar mechanism of action that involved binding to a conserved S3-S4 region in the voltage-sensing domains (VSDs). Since voltage-gated Na+ (NaV) channels contain homologous structural motifs, we hypothesized that GrTX-SIA could inhibit members of this ion channel family as well.

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Involvement of the choroid plexus in Alzheimer's disease pathophysiology: findings from mouse and human proteomic studies.

Fluids Barriers CNS

July 2024

Department of Psychiatry and Neuropsychology, Alzheimer Centrum Limburg, School for Mental Health and Neuroscience, Maastricht University, P.O. Box 616, Maastricht, 6200 MD, The Netherlands.

Background: Structural and functional changes of the choroid plexus (ChP) have been reported in Alzheimer's disease (AD). Nonetheless, the role of the ChP in the pathogenesis of AD remains largely unknown. We aim to unravel the relation between ChP functioning and core AD pathogenesis using a unique proteomic approach in mice and humans.

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Shared and distinctive brain networks underlying trait and state rumination.

Behav Brain Res

August 2024

Key Laboratory of Cognition and Personality, Faculty of Psychology, Southwest University, Chongqing, China; Ghent Experimental Psychiatry Lab, Department of Head and Skin, UZ Gent/Universiteit Gent, Ghent, Belgium. Electronic address:

Article Synopsis
  • Trait and state rumination contribute to negative emotions but are only weakly correlated, suggesting they influence emotional reactions to stress differently.
  • This study used functional near-infrared spectroscopy (fNIRS) and connectome-based predictive modeling (CPM) to identify distinct neural connectivity associated with each type of rumination.
  • Results showed that trait rumination involves broader functional connectivity networks, while state rumination has a more specific connectivity pattern, indicating shared neural mechanisms and potential targets for therapy to reduce rumination-related negativity.
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CSF proteomic profiles of neurodegeneration biomarkers in Alzheimer's disease.

Alzheimers Dement

September 2024

Department of Psychiatry and Neuropsychology, Alzheimer Centrum Limburg, School for Mental Health and Neuroscience, Maastricht University, Maastricht, the Netherlands.

Article Synopsis
  • The study investigated the role of neurodegeneration markers (neurogranin, neurofilament light, and hippocampal volume) in Alzheimer's disease using cerebrospinal fluid proteomics.
  • A small number of individuals exhibited both amyloid and tau pathology with either neurogranin or neurofilament light, showing distinct proteomic profiles based on these markers.
  • The findings suggest that neurogranin might not be the best indicator of neurodegeneration and that different markers provide unique insights into the disease, helping refine staging beyond just amyloid and tau levels.
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Continuous theta burst stimulation for bipolar depression: A multicenter, double-blind randomized controlled study exploring treatment efficacy and predictive potential of kynurenine metabolites.

J Affect Disord

September 2024

Scientific Initiative of Neuropsychiatric and Psychopharmacological Studies (SINAPS), University Psychiatric Centre Duffel, Duffel, Belgium; Collaborative Antwerp Psychiatric Research Institute (CAPRI), Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp, Belgium.

Background: While theta burst stimulation (TBS) shows promise in Major Depressive Disorder (MDD), its effectiveness in bipolar depression (BD-D) remains uncertain. Optimizing treatment parameters is crucial in the pursuit of rapid symptom relief. Moreover, aligning with personalized treatment strategies and increased interest in immunopsychiatry, biomarker-based stratification of patients most likely to benefit from TBS might improve remission rates.

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Article Synopsis
  • A study was done to see if a new method to predict brain age can help understand brain health better and measure how lifestyle changes might help keep our brains in good condition.
  • They looked at data from 742 people, including those with healthy brains and various types of cognitive issues, using special software to analyze brain scans.
  • The results showed that people with mild cognitive impairment and Alzheimer's had older brain ages than their actual ages, and using brain age was better at identifying brain problems than just looking at regular age.
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Paired plasma lipidomics and proteomics analysis in the conversion from mild cognitive impairment to Alzheimer's disease.

Comput Biol Med

June 2024

Steno Diabetes Center Copenhagen, Herlev, Denmark; Institute of Pharmaceutical Science, King's College London, London, United Kingdom. Electronic address:

Background: Alzheimer's disease (AD) is a neurodegenerative condition for which there is currently no available medication that can stop its progression. Previous studies suggest that mild cognitive impairment (MCI) is a phase that precedes the disease. Therefore, a better understanding of the molecular mechanisms behind MCI conversion to AD is needed.

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Background And Purpose: Coronavirus disease 2019 (COVID-19) vaccination has been associated with a dampened humoral and/or cellular immune response in patients with multiple sclerosis (MS) who were concurrently on disease-modifying treatment (DMT) with B-cell depleting agents or sphingosine-1-phosphate receptor modulators (S1PRMs). Our main goal was to investigate the impact of these DMT classes on the clinical effectiveness of COVID-19 vaccination.

Methods: Since March 2020, demographics and clinical data of patients with MS who developed COVID-19 have been collected at the Belgian National MS Centre in Melsbroek.

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The global aging population faces significant health challenges, including an increasing vulnerability to disability due to natural aging processes. Wearable lower limb exoskeletons (LLEs) have emerged as a promising solution to enhance physical function in older individuals. This systematic review synthesizes the use of LLEs in alignment with the WHO's healthy aging vision, examining their impact on intrinsic capacities and functional abilities.

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Article Synopsis
  • - This study investigates how nonspecific chronic spinal pain (nCSP) and insomnia symptoms are related, focusing on their connections, strengths, and how they influence each other.
  • - Using baseline data from a randomized controlled trial involving 123 patients with nCSP and insomnia, researchers employed a detailed statistical model to analyze symptom interconnections.
  • - The findings indicate a weak direct link between pain and sleep, but suggest that anxiety and depression may mediate the relationship, with fatigue and feeling slowed down identified as key results of the interaction.
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Electrotherapy in stroke rehabilitation can improve lower limb muscle characteristics: a systematic review and meta-analysis.

Disabil Rehabil

January 2025

Rehabilitation Research Group, Department of Physiotherapy, Human Physiology and Anatomy, Faculty of Physical Education and Physiotherapy, Vrije Universiteit Brussel, Brussels, Belgium.

Purpose: This review assesses the effect of electrotherapy (e.g. functional electrical stimulation (FES), motor and sensor therapeutic electrical stimulation (TES)) on muscle strength and skeletal muscle characteristics in individuals post-stroke compared to conventional or sham therapy.

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Introduction: Spinal pain syndromes have a severe impact on the patient's sex life, contributing to a decrease in sexual function and sexual satisfaction. Despite the importance of sexual health on mental and physical wellbeing, sexual health is rarely discussed during consultations.

Research Question: The aim of this study is to explore to what extent influencing factors can alter the discussion about sexual health during consultations.

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Compartmentalized role of xCT in supporting pancreatic tumor growth, inflammation and mood disturbance in mice.

Brain Behav Immun

May 2024

Laboratory of Neuro-Aging & Viro-Immunotherapy, Center for Neurosciences (C4N), Vrije Universiteit Brussel (VUB), Brussels 1090, Belgium. Electronic address:

xCT (Slc7a11), the specific subunit of the cystine/glutamate antiporter system x, is present in the brain and on immune cells, where it is known to modulate behavior and inflammatory responses. In a variety of cancers -including pancreatic ductal adenocarcinoma (PDAC)-, xCT is upregulated by tumor cells to support their growth and spread. Therefore, we studied the impact of xCT deletion in pancreatic tumor cells (Panc02) and/or the host (xCT mice) on tumor burden, inflammation, cachexia and mood disturbances.

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Alzheimer's disease (AD) is the most common cause of dementia. New strategies for the early detection of MCI and sporadic AD are crucial for developing effective treatment options. Current techniques used for diagnosis of AD are invasive and/or expensive, so they are not suitable for population screening.

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Implicit motor sequence learning (IMSL) is a cognitive function that is known to be associated with impaired motor function in Parkinson's disease (PD). We previously reported positive effects of transcranial direct current stimulation (tDCS) over the primary motor cortex (M1) on IMSL in 11 individuals with PD with mild cognitive impairments (MCI), with the largest effects occurring during reacquisition. In the present study, we included 35 individuals with PD, with (n = 15) and without MCI (n = 20), and 35 age- and sex-matched controls without PD, with (n = 13) and without MCI (n = 22).

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Gut dysbiosis in patients with chronic pain: a systematic review and meta-analysis.

Front Immunol

August 2024

STIMULUS (Research and Teaching Neuromodulation Uz Brussel) Research Group, Vrije Universiteit Brussel, Brussels, Belgium.

Introduction: Recent evidence supports the contribution of gut microbiota dysbiosis to the pathophysiology of rheumatic diseases, neuropathic pain, and neurodegenerative disorders. The bidirectional gut-brain communication network and the occurrence of chronic pain both involve contributions of the autonomic nervous system and the hypothalamic pituitary adrenal axis. Nevertheless, the current understanding of the association between gut microbiota and chronic pain is still not clear.

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Anti-ultraviolet, antibacterial, and biofilm eradication activities against of melanins and melanin derivatives from and .

Front Microbiol

January 2024

Applied Microbiology Laboratory, School of Biotechnology, International University - VNU HCM, Linh Trung ward, Thu Duc, Ho Chi Minh City, Vietnam.

and produced significant amounts of water-insoluble melanins, and our previous study successfully enhanced their water solubility by arginine modification. This research aimed to investigate the anti-ultraviolet, antibacterial, and biofilm eradication activities of both the melanins and arginine-modified melanin (melanin derivatives) from these two fungi against an acne-causing bacterium (). Apart from these, the cytotoxicity of the melanins and melanin derivatives on human skin cells was also evaluated.

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Purpose: To assess the performance of the inferior lateral ventricle (ILV) to hippocampal (Hip) volume ratio on brain MRI, for Alzheimer's disease (AD) diagnostics, comparing it to individual automated ILV and hippocampal volumes, and visual medial temporal lobe atrophy (MTA) consensus ratings.

Methods: One-hundred-twelve subjects (mean age ± SD, 66.85 ± 13.

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Biopsychosocial rehabilitation in the working population with chronic low back pain: a concept analysis.

J Rehabil Med

January 2024

Faculty of Medicine and Healthcare Sciences, Department of Rehabilitation Sciences, Occupational Therapy Research Group, Ghent University, Ghent, Belgium.

Objective: To identify the essential attributes of biopsychosocial rehabilitation for chronic low back pain in the working population.

Design: A concept analysis was conducted according to the 8-step method of Walker and Avant. This framework provides a clear concept and theoretical and operational definitions.

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Higher sensory processing sensitivity: increased cautiousness in attentional processing in conflict contexts.

Cogn Emot

June 2024

Brain, Body and Cognition (BBCO) Research Group, Faculty of Psychology and Educational Sciences, Vrije Universiteit Brussel, Brussel, Belgium.

While interest grows in investigating sensory processing sensitivity (SPS), few studies have employed objective behavioural measures to directly explore the underlying attentional processing. The present study utilised two modified versions of the Emotional Attention Networks Test Integration (E-ANTI) to investigate whether and how emotion interacts with three attentional networks associated with SPS when emotion information was target-irrelevant (Experiment 1) and target-relevant (Experiment 2), respectively. Both experiments involved four manipulated within-subject factors: (tone vs.

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Investigating the variability of prefrontal tDCS effects on working memory: An individual E-field distribution study.

Cortex

March 2024

Department of Head and Skin, Psychiatry and Medical Psychology, Ghent University Hospital, Ghent University, Ghent, Belgium; Ghent Experimental Psychiatry (GHEP) Lab, Ghent University, Ghent, Belgium.

Transcranial direct current stimulation (tDCS) over the prefrontal cortex has the potential to enhance working memory by means of a weak direct current applied to the scalp. However, its effects are highly variable and possibly dependent on individual variability in cortical architecture and head anatomy. Unveiling sources of heterogeneity might improve fundamental and clinical application of tDCS in the field.

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