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Dirk De Ridder

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https://www.readbyqxmd.com/read/28260394/evidence-for-behaviorally-segregated-spatio-temporally-overlapping-subnetworks-in-phantom-sound-perception
#1
Anusha Mohan, Nicole Moreno, Jae-Jin Song, Dirk De Ridder, Sven Vanneste
One of the most intriguing questions in neuroscience is to understand the mechanism of information transfer between different brain areas. Recently, network theory has gained traction and is at the forefront of providing a possible explanation to not only the mechanism of information transfer, but also in the identification of different neuropathologies. The perception of a phantom ringing in the ear called tinnitus, similar to other neuropathologies, has been shown to be accompanied by aberrant functional connectivity between different brain areas...
March 6, 2017: Brain Connectivity
https://www.readbyqxmd.com/read/28124536/a-prospective-randomized-controlled-multicentre-trial-comparing-intravesical-dmso-and-chondro%C3%A3-tin-sulphate-2-for-painful-bladder-syndrome-interstitial-cystitis
#2
Manuela Tutolo, Enrico Ammirati, Giulia Castagna, Katrien Klockaerts, Hendrik Plancke, Dieter Ost, Frank Van der Aa, Dirk De Ridder
OBJECTIVE: To compare effectiveness of intravesical chondroïtin sulphate (CS) 2% and dimethyl sulphoxide (DMSO) 50% in patients with painful bladder syndrome/interstitial cystitis (PBS/IC). MATERIALS AND METHODS: Patients were randomized to receive either 6 weekly instillations of CS 2% or 50% DMSO. Primary endpoint was difference in proportion of patients achieving score 6 (moderately improved) or 7 (markedly improved) in both groups using the Global Response Assessment (GRA) scale...
January 2017: International Braz J Urol: Official Journal of the Brazilian Society of Urology
https://www.readbyqxmd.com/read/28117078/treating-patients-with-dynamic-wave-arc-first-clinical-experience
#3
Manuela Burghelea, Dirk Verellen, Jennifer Dhont, Cecilia Hung, Thierry Gevaert, Robbe Van den Begin, Christine Collen, Kenneth Poels, Koen Tournel, Marlies Boussaer, Cyril Jaudet, Truus Reynders, Viorica Simon, Mark de Ridder
BACKGROUND AND PURPOSE: Dynamic Wave Arc (DWA) is a system-specific noncoplanar arc technique that combines synchronized gantry-ring rotation with D-MLC optimization. This paper presents the clinical workflow, quality assurance program, and reports the geometric and dosimetric results of the first patient cohort treated with DWA. METHODS AND MATERIALS: The RayStation TPS was clinically integrated on the Vero SBRT platform for DWA treatments. The first 15 patients treated with DWA represent a broad range of treatment sites: breast boost, prostate, lung SBRT and bone metastases, which allowed us to explore the potentials and assess the limitations of the current DWA site-specific template solution...
January 20, 2017: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/28004273/occipital-nerve-field-transcranial-direct-current-stimulation-normalizes-imbalance-between-pain-detecting-and-pain-inhibitory-pathways-in-fibromyalgia
#4
Dirk De Ridder, Sven Vanneste
Occipital nerve field (OCF) stimulation with subcutaneously implanted electrodes is used to treat headaches, more generalized pain, and even failed back surgery syndrome via unknown mechanisms. Transcranial direct current stimulation (tDCS) can predict the efficacy of implanted electrodes. The purpose of this study is to unravel the neural mechanisms involved in global pain suppression, mediated by occipital nerve field stimulation, within the realm of fibromyalgia. Nineteen patients with fibromyalgia underwent a placebo-controlled OCF tDCS...
December 21, 2016: Neurotherapeutics: the Journal of the American Society for Experimental NeuroTherapeutics
https://www.readbyqxmd.com/read/27997763/the-stem-cell-growth-factor-receptor-kit-is-not-expressed-on-interstitial-cells-in-bladder
#5
Thomas Gevaert, Dirk De Ridder, Els Vanstreels, Dirk Daelemans, Wouter Everaerts, Frank Van Der Aa, Isabel Pintelon, Jean-Pierre Timmermans, Tania Roskams, Clara Steiner, Jochen Neuhaus
The mast/stem cell growth factor receptor KIT has long been assumed to be a specific marker for interstitial cells of Cajal (ICC) in the bladder, with possible druggable perspectives. However, several authors have challenged the presence of KIT(+) ICC in recent years. The aim of this study was therefore to attempt to clarify the conflicting reports on KIT expression in the bladder of human beings, rat, mouse and guinea pig and to elucidate the possible role of antibody-related issues and interspecies differences in this matter...
December 20, 2016: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/27876789/allostasis-in-health-and-food-addiction
#6
Dirk De Ridder, Patrick Manning, Sook Ling Leong, Samantha Ross, Sven Vanneste
Homeostasis is the basis of modern medicine and allostasis, a further elaboration of homeostasis, has been defined as stability through change, which was later modified to predictive reference resetting. It has been suggested that pleasure is related to salience (behavioral relevance), and withdrawal has been linked to allostasis in addictive types. The question arises how the clinical and neural signatures of pleasure, salience, allostasis and withdrawal relate, both in a non-addicted and addicted state. Resting state EEGs were performed in 66 people, involving a food-addicted obese group, a non-food addicted obese group and a lean control group...
November 23, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27866120/evidence-based-guidelines-on-the-therapeutic-use-of-transcranial-direct-current-stimulation-tdcs
#7
REVIEW
Jean-Pascal Lefaucheur, Andrea Antal, Samar S Ayache, David H Benninger, Jérôme Brunelin, Filippo Cogiamanian, Maria Cotelli, Dirk De Ridder, Roberta Ferrucci, Berthold Langguth, Paola Marangolo, Veit Mylius, Michael A Nitsche, Frank Padberg, Ulrich Palm, Emmanuel Poulet, Alberto Priori, Simone Rossi, Martin Schecklmann, Sven Vanneste, Ulf Ziemann, Luis Garcia-Larrea, Walter Paulus
A group of European experts was commissioned by the European Chapter of the International Federation of Clinical Neurophysiology to gather knowledge about the state of the art of the therapeutic use of transcranial direct current stimulation (tDCS) from studies published up until September 2016, regarding pain, Parkinson's disease, other movement disorders, motor stroke, poststroke aphasia, multiple sclerosis, epilepsy, consciousness disorders, Alzheimer's disease, tinnitus, depression, schizophrenia, and craving/addiction...
January 2017: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/27819752/a-prospective-randomized-controlled-multicentre-trial-comparing-intravesical-dmso-and-chondro%C3%A3-tin-sulphate-2-for-painful-bladder-syndrome-interstitial-cystitis
#8
Manuela Tutolo, Enrico Ammirati, Giulia Castagna, Katrien Klockaerts, Hendrik Plancke, Dieter Ost, Frank Van der Aa, Dirk De Ridder
OBJECTIVE: To compare effectiveness of intravesical chondroïtin sulphate (CS) 2% and dimethyl sulphoxide (DMSO) 50% in patients with painful bladder syndrome/interstitial cystitis (PBS/IC). MATERIALS AND METHODS: Patients were randomized to receive either 6 weekly instillations of CS 2% or 50% DMSO. Primary endpoint was difference in proportion of patients achieving score 6 (moderately improved) or 7 (markedly improved) in both groups using the Global Response Assessment (GRA) scale...
January 2017: International Braz J Urol: Official Journal of the Brazilian Society of Urology
https://www.readbyqxmd.com/read/27776339/generation-of-cd20-specific-tcrs-for-tcr-gene-therapy-of-cd20low-b-cell-malignancies-insusceptible-to-cd20-targeting-antibodies
#9
Lorenz Jahn, Dirk M van der Steen, Renate S Hagedoorn, Pleun Hombrink, Michel G D Kester, Marjolein P Schoonakker, Daniëlle de Ridder, Peter A van Veelen, J H Frederik Falkenburg, Mirjam H M Heemskerk
Immunotherapy of B-cell leukemia and lymphoma with CD20-targeting monoclonal antibodies (mAbs) has demonstrated clinical efficacy. However, the emergence of unresponsive disease due to low or absent cell surface CD20 urges the need to develop additional strategies. In contrast to mAbs, T-cells via their T-cell receptor (TCR) can recognize not only extracellular but also intracellular antigens in the context of HLA molecules. We hypothesized that T-cells equipped with high affinity CD20-targeting TCRs would be able to recognize B-cell malignancies even in the absence of extracellular CD20...
October 20, 2016: Oncotarget
https://www.readbyqxmd.com/read/27763717/additive-effects-of-the-rho-kinase-inhibitor-y-27632-and-vardenafil-on-relaxation-of-the-corpus-cavernosum-tissue-of-patients-with-erectile-dysfunction-and-clinical-phosphodiesterase-type-5-inhibitor-failure
#10
Pieter Uvin, Maarten Albersen, Ine Bollen, Maarten Falter, Emmanuel Weyne, Loes Linsen, Hanna Tinel, Peter Sandner, Trinity J Bivalacqua, Dirk J M K De Ridder, Frank Van der Aa, Bert Brône, Koenraad Van Renterghem
OBJECTIVES: To evaluate the expression of the Rho/Rho-associated protein kinase (ROCK) pathway in the corpus cavernosum of patients with severe erectile dysfunction (ED) compared with healthy human corpus cavernosum, and to test the functional effects of two Rho kinase inhibitors (RKIs) on erectile tissue of patients with severe ED, which did not respond to phosphodiesterase type 5 inhibitors (PDE5Is). PATIENTS AND METHODS: Human corpus cavernosum samples were obtained after consent from men undergoing penile prosthesis implantation (n = 7 for organ bath experiments, n = 17 for quantitative PCR [qPCR])...
October 20, 2016: BJU International
https://www.readbyqxmd.com/read/27761741/the-added-value-of-auditory-cortex-transcranial-random-noise-stimulation-trns-after-bifrontal-transcranial-direct-current-stimulation-tdcs-for-tinnitus
#11
Wing Ting To, Jan Ost, John Hart, Dirk De Ridder, Sven Vanneste
Tinnitus is the perception of a sound in the absence of a corresponding external sound source. Research has suggested that functional abnormalities in tinnitus patients involve auditory as well as non-auditory brain areas. Transcranial electrical stimulation (tES), such as transcranial direct current stimulation (tDCS) to the dorsolateral prefrontal cortex and transcranial random noise stimulation (tRNS) to the auditory cortex, has demonstrated modulation of brain activity to transiently suppress tinnitus symptoms...
October 19, 2016: Journal of Neural Transmission
https://www.readbyqxmd.com/read/27756670/anterior-cingulate-implant-for-obsessive-compulsive-disorder
#12
Dirk De Ridder, Sook Ling Leong, Patrick Manning, Sven Vanneste, Paul Glue
BACKGROUND: Obsessive-compulsive disorder (OCD) is a brain disorder with a lifetime prevalence of 2.3%, causing severe functional impairment as a result of anxiety and distress, persistent and repetitive, unwanted, intrusive thoughts (obsessions), and repetitive ritualized behavior (compulsions). Approximately 40%-60% of patients with OCD fail to satisfactorily respond to standard treatments. Intractable OCD has been treated by anterior capsulotomy and cingulotomy, but more recently, neurostimulation approaches have become more popular because of their reversibility...
January 2017: World Neurosurgery
https://www.readbyqxmd.com/read/27720536/pathophysiology-and-contributing-factors-in-postprostatectomy-incontinence-a-review
#13
REVIEW
John Heesakkers, Fawzy Farag, Ricarda M Bauer, Jaspreet Sandhu, Dirk De Ridder, Arnulf Stenzl
CONTEXT: The incidence and awareness of postprostatectomy incontinence (PPI) has increased during the past few years, probably because of an increase in prostate cancer surgery. Many theories have been postulated to explain the pathophysiology of PPI. OBJECTIVE: The current review scrutinizes various pathophysiologic mechanisms underlying the occurrence of PPI. EVIDENCE ACQUISITION: A search was conducted on PubMed and EMBASE for publications on PPI...
October 6, 2016: European Urology
https://www.readbyqxmd.com/read/27689397/a-cd22-reactive-tcr-from-the-t-cell-allorepertoire-for-the-treatment-of-acute-lymphoblastic-leukemia-by-tcr-gene-transfer
#14
Lorenz Jahn, Renate S Hagedoorn, Dirk M van der Steen, Pleun Hombrink, Michel G D Kester, Marjolein P Schoonakker, Daniëlle de Ridder, Peter A van Veelen, J H Frederik Falkenburg, Mirjam H M Heemskerk
CD22 is currently evaluated as a target-antigen for the treatment of B-cell malignancies using chimeric antigen receptor (CAR)-engineered T-cells or monoclonal antibodies (mAbs). CAR- and mAbs-based immunotherapies have been successfully applied targeting other antigens, however, occurrence of refractory disease to these interventions urges the identification of additional strategies. Here, we identified a TCR recognizing the CD22-derived peptide RPFPPHIQL (CD22RPF) presented in human leukocyte antigen (HLA)-B*07:02...
September 26, 2016: Oncotarget
https://www.readbyqxmd.com/read/27658351/the-brain-obesity-and-addiction-an-eeg-neuroimaging-study
#15
Dirk De Ridder, Patrick Manning, Sook Ling Leong, Samantha Ross, Wayne Sutherland, Caroline Horwath, Sven Vanneste
Obesity is among the greatest challenges facing healthcare systems with 20% of the world's population afflicted. Great controversy exists whether obesity can be regarded as an addictive disorder or not. Recently the Yale Food Addiction Scale questionnaire has been developed as a tool to identify individuals with traits of addiction towards food. Using clinical and source localized EEG data we dichotomize obesity. Brain activity in food-addicted and non-food-addicted obese people is compared to alcohol-addicted and non-addicted lean controls...
September 23, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27601980/understanding-the-effects-of-repetitive-transcranial-magnetic-stimulation-on-neuronal-circuits
#16
Natalie A Matheson, Jon B H Shemmell, Dirk De Ridder, John N J Reynolds
No abstract text is available yet for this article.
2016: Frontiers in Neural Circuits
https://www.readbyqxmd.com/read/27512343/an-evidence-based-laparoscopic-simulation-curriculum-shortens-the-clinical-learning-curve-and-reduces-surgical-adverse-events
#17
Gunter De Win, Siska Van Bruwaene, Jyotsna Kulkarni, Ben Van Calster, Rajesh Aggarwal, Christopher Allen, Ann Lissens, Dirk De Ridder, Marc Miserez
BACKGROUND: Surgical simulation is becoming increasingly important in surgical education. However, the method of simulation to be incorporated into a surgical curriculum is unclear. We compared the effectiveness of a proficiency-based preclinical simulation training in laparoscopy with conventional surgical training and conventional surgical training interspersed with standard simulation sessions. MATERIALS AND METHODS: In this prospective single-blinded trial, 30 final-year medical students were randomized into three groups, which differed in the way they were exposed to laparoscopic simulation training...
2016: Advances in Medical Education and Practice
https://www.readbyqxmd.com/read/27509900/the-importance-of-aging-in-gray-matter-changes-within-tinnitus-patients-shown-in-cortical-thickness-surface-area-and-volume
#18
Hye Bin Yoo, Dirk De Ridder, Sven Vanneste
Aging and sensorineural hearing loss are known to be involved in the development of chronic tinnitus. This study explores the structural changes of gray matter using surface base methods and focuses more specifically on changes in cortical thickness in 127 tinnitus patients. The linear relationships between cortical thickness and behavioral measures including aging, tinnitus loudness, tinnitus duration, tinnitus distress, and hearing loss were analyzed. Three dimensional T1-weighted MR images were acquired and cortical gray matter volumes were segmented using FreeSurfer on Talairach space...
November 2016: Brain Topography
https://www.readbyqxmd.com/read/27496296/predictors-of-recurrence-and-successful-treatment-following-obstetric-fistula-surgery
#19
Matthieu Loposso, Lukman Hakim, Jean Ndundu, Simon Lufuma, Augustin Punga, Dirk De Ridder
OBJECTIVE: To determine factors contributing to recurrence and successful treatment of obstetric fistula (OF). MATERIALS AND METHODS: Data were collected from OF patients in Saint Luc Hospital Kisantu (DR of Congo) between 2007 and 2013. Patients underwent surgical treatment and were evaluated after a follow-up period of 3 months. Successful treatment was defined as no or dry pads whereas recurrence was defined as the persisting need for wearing incontinence pads immediately after the surgery or after a period of dryness...
November 2016: Urology
https://www.readbyqxmd.com/read/27477680/the-use-of-imaging-techniques-in-understanding-lower-urinary-tract-dys-function
#20
REVIEW
Yves Deruyver, Lukman Hakim, Jan Franken, Dirk De Ridder
The ability to store urine in the bladder and to void at an appropriate time depends on several complex mechanisms in the lower urinary tract (LUT) and its neural control. Normal LUT function requires coordination of the urinary bladder, urethra, pelvic floor, efferent and afferent neurons and specific spinal cord and brain areas. These structures can be visualised using different imaging modalities, such as ultrasound, X-ray and magnetic resonance imaging. The supraspinal neural control of the LUT can be studied using functional brain imaging...
October 2016: Autonomic Neuroscience: Basic & Clinical
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