617 results match your criteria: "University of Amsterdam and VU University Amsterdam[Affiliation]"

Detecting Colorectal Neoplasia Using Specific Fecal Fluorogenic Protease-Sensitive Substrates: A Pilot Study.

Anal Chem

December 2024

Department of Oral Biochemistry, Academic Centre for Dentistry Amsterdam, University of Amsterdam and VU University Amsterdam, Gustav Mahlerlaan 3004, 1081 LA Amsterdam, The Netherlands.

Background: identification and removal of advanced adenomas (AA) reduce colorectal cancer (CRC) incidence and potentially mortality. CRC screening often uses fecal immunochemical testing to select high-risk individuals for colonoscopy, despite its low sensitivity for AA and relatively high false-positivity rate. Previous studies have linked proteases to CRC development through their ability to facilitate angiogenesis and immunoregulation.

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Predicting complete concentric collapse at the palatal level during drug-induced sleep endoscopy: an analysis of 1761 cases.

Sleep Breath

November 2024

Department of Otorhinolaryngology- Head and Neck Surgery, OLVG, Jan Tooropstraat 164, Amsterdam, 1061AE, The Netherlands.

Purpose: Drug-induced sleep endoscopy (DISE) helps select patients with obstructive sleep apnea (OSA) for surgery by identifying upper airway collapse patterns. This study aimed to predict the probability of complete concentric collapse at the palatal level (CCCp) during DISE based on patient characteristics, specifically body mass index (BMI).

Methods: We retrospectively reviewed records of OSA patients who underwent DISE from January 2018 to July 2023.

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Objective: The objective was to develop a manually operatable, non-electric device to measure salivary spinnbarkeit for research, clinical and educational purposes.

Materials And Methods: A newly developed device, named the Kamranmeter, was built and evaluated in a pilot study, comparing the spinnbarkeit of unstimulated and chew-stimulated saliva samples from healthy volunteers. The Neva Meter, which operates on electrical resistance, was used as a reference standard.

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Antiviral activity of cathelicidins against porcine epidemic diarrhea virus (PEDV): Mechanisms, and efficacy.

Virus Res

December 2024

Department of Biomolecular Health Sciences, Division Infectious Diseases & Immunology, Faculty of Veterinary Medicine, Utrecht University, Utrecht 3584 CL, the Netherlands. Electronic address:

Porcine epidemic diarrhea virus (PEDV) is a harmful coronavirus infecting pigs, which is resulting in substantial financial losses in the global pig industry. The lack of effective vaccines or treatments underscores the pressing need for new antiviral strategies. Antimicrobial peptides (AMPs), specifically cathelicidins such as LL-37, have demonstrated promising activity against a range of viruses.

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Taste alterations after hematopoietic cell transplantation: a scoping review.

Support Care Cancer

September 2024

Department of Oral Medicine, Academic Center for Dentistry Amsterdam, University of Amsterdam and VU University Amsterdam, Gustav Mahlerlaan 3004, 1081 HV, Amsterdam, The Netherlands.

Purpose: This review aimed to evaluate the prevalence and characteristics of dysgeusia after hematopoietic cell transplantation (HCT).

Methods: A literature search (in PubMed, Embase.com and Web of Science) for clinical studies evaluating taste before and after HCT was performed up to June 22, 2023, in collaboration with a medical information specialist.

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Background: The process of vascular development is essential for shaping complex craniofacial structures. Investigating the interplay between vascular development and orofacial morphogenesis holds critical importance in clinical practice and contributes to advancing our comprehension of (vascular) developmental biology. New insights into specific vascular developmental pathways will have far-reaching implications across various medical disciplines, enhancing clinical understanding, refining surgical techniques, and elucidating the origins of congenital abnormalities.

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Background: Olfactory stimulation with mastic resin, derived from the Pistacia lentiscus tree, demonstrated a bona fide sialagogic effect in healthy volunteers [1]. Its main volatile compound, α-pinene, also showed this effect. The current study aimed to validate the effect of mastic resin volatiles in chronic dry mouth patients with confirmed decreased saliva secretion.

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Orthodontic aligner therapy outcomes in children with autism spectrum disorder.

Int J Paediatr Dent

August 2024

Department of Oral and Maxillofacial Surgery, Special Dental Care and Orthodontics, Erasmus Medical Center, Rotterdam, The Netherlands.

Background: Children with autism spectrum disorder (ASD) face unique challenges in oral care. Aligner therapy offers a promising alternative to conventional approaches for this patient group.

Aim: To evaluate orthodontic aligner therapy outcomes in children with ASD using the Peer Assessment Rating (PAR) Index and the Index of Complexity, Outcome, and Need (ICON), and to investigate whether concomitant disorders affect ICON, PAR scores, and treatment duration.

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Release of contraction stress of dental resin composites by water sorption.

Dent Mater

October 2024

Department of Dental Materials Science, Academic Centre for Dentistry Amsterdam, University of Amsterdam and VU University Amsterdam, Gustav Mahlerlaan 3004, 1081LA Amsterdam, the Netherlands.

Unlabelled: Polymerization shrinkage of bonded resin composite restorations will result in the development of curing contraction stresses during setting and can cause debonding of the restoration or failure of the surrounding tooth structure. However, the hygroscopic expansion that occurs after exposure of the restorative to the wet oral environment can compensate for this shrinkage.

Objectives: The purpose of this study was to determine the hygroscopic expansion of six commercial resin composites and relate it to their composition, mechanical properties, shrinkage, and contraction stress development.

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Background: Visualizing (micro)vascular structures remains challenging for researchers and clinicians due to limitations in traditional radiological imaging methods. Exploring the role of vascular development in craniofacial malformations in experimental settings can enhance understanding of these processes, with the effectiveness of high-resolution imaging techniques being crucial for successful research in this field. Micro-CT imaging offers 3D microstructural insights, but requires contrast-enhancing staining agents (CESAs) for visualizing (micro)-vascular tissues, known as contrast-enhanced micro-CT (CECT).

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Interventions to reduce adult state anxiety, dental trait anxiety, and dental phobia: A systematic review and meta-analyses of randomized controlled trials.

J Anxiety Disord

July 2024

Department of Department of Oral Public Health, ACTA, University of Amsterdam and VU University Amsterdam, Amsterdam, the Netherlands, Gustav Mahlerlaan 3004, 1081 LA Amsterdam, the Netherlands; The Institute of Health and Society, University of Worcester, Worcester, United Kingdom; The School of Psychology, Queen's University, Belfast, Northern Ireland, UK.

This review evaluates randomized controlled trials (RCTs) intervening on adult state anxiety (fear and emotional distress during dental treatment), chronic dental (trait) anxiety or dental phobia (disproportionately high trait anxiety; meeting diagnostic criteria for specific phobia). Seven online databases were systematically searched. 173 RCTs met inclusion criteria, of which 67 qualified for 14 pooled analyses.

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Introduction: Although the maxillary nerve block (MNB) provides adequate pain relief in cleft palate surgery, it is not routinely used globally, and reported techniques are heterogeneous. This study aims to describe relevant anatomy and to present the preferred technique of MNB administration based on the current literature and the expert opinion of the authors.

Method And Materials: First, a survey was sent to 432 registrants of the International Cleft Palate Master Course Amsterdam 2023.

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Objectives: The study aimed to assess whether psychological distress mediates the association between financial strain and oral health and dental attendance in the Dutch adult population.

Methods: The study followed a cross-sectional design based on 2812 participants from the 2014 wave of the Dutch population-based GLOBE study. Financial strain was considered the exposure, while psychological distress measured with the Mental Health Inventory-5 (MHI-5) was the mediator.

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Despite the availability of various treatment approaches for patients with posttraumatic stress disorder (PTSD), some patients do not respond to these therapies, and novel treatment approaches are needed. This study investigated the efficacy of mifepristone, a glucocorticoid receptor antagonist, in treatment-resistant PTSD patients. Three patients with PTSD who were resistant to standard psychological and pharmacological treatments were prescribed mifepristone (600-1,200 mg/day) for 1 week.

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Colonoscopy is the gold standard for diagnosing inflammatory bowel disease (IBD). However, this invasive procedure has a high burden for pediatric patients. Previous research has shown elevated fecal amino acid concentrations in children with IBD versus controls.

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Article Synopsis
  • Non-sputum-based tests are crucial for diagnosing tuberculosis (TB) in people living with HIV (PWH), and the Kyn-to-Trp (K/T) plasma ratio may serve as a promising biomarker to predict TB disease in these patients on antiretroviral therapy (ART).
  • The study measured K/T ratios at three different time points (at diagnosis, 6 months before, and 6 months after) in PWH who developed TB, revealing significantly higher ratios at diagnosis compared to matched controls.
  • Following successful TB treatment, K/T ratios significantly dropped, but they increased in cases of treatment failure, suggesting the ratio could be useful for monitoring TB treatment in PWH, pending further validation studies.
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Research has shown that the impact of traumatic events and circumstances on individuals is cumulative and potentially has a wide range of harmful consequences, including negative consequences on mental health. One such consequence is the development of a personality disorder, a persistent mental condition characterized by a pronounced pattern of difficulties in impulse control, emotional regulation, cognitive functions, self-esteem, and interpersonal relationships. A wide array of studies indicates that the personal history of individuals with a personality disorder is often marked by exposure to traumatic events or other types of adverse childhood experiences (ACEs).

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Eye movement desensitization and reprocessing (EMDR) therapy is an evidence-based psychotherapy for posttraumatic stress disorder (PTSD), with support from more than 30 published randomized controlled trials (RCTs) demonstrating its effectiveness in both adults and children. Most international clinical practice guidelines recommend EMDR therapy as a first-line treatment for PTSD. This paper describes the current state of the evidence for EMDR therapy.

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Article Synopsis
  • * A study used TR146 cells, which lack MUC1, to examine how different MUC1 isoforms affect MP formation; it found that MUC1 expression boosted MUC5B adsorption regardless of the specific structure of MUC1 isoforms.
  • * Advanced techniques revealed that MUC1 expression altered the chemical properties on the cell surface, indicating hydrophobic interactions play a key role in how MUC1 and salivary proteins interact.
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Background: Exposure to adverse childhood events plays an important role in the development of borderline personality disorder (BPD). Emerging evidence suggests that trauma-focused therapy using eye movement desensitization and reprocessing (EMDR) can be beneficial for patients with BPD symptoms. To date, the effects of brief, intensive EMDR treatment for this target group have not been investigated in this population.

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Objective: Until now, the clinically relevant improvement for the Xerostomia Inventory (XI) has not been defined. Therefore, our aim was to determine the Minimally Important Difference (MID) of the XI for improvement in dry-mouth symptoms in SjD patients.

Method: The study recruited 34 SjD patients who underwent sialendoscopy of major salivary glands and 15 SjD patients in a nonintervention control group.

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Background: Several widely studied therapies have proven to be effective in the treatment of post-traumatic stress disorder (PTSD). However, there is still room for improvement because not all patients benefit from trauma-focused treatments. Improvements in the treatment of PTSD can be achieved by investigating ways to enhance existing therapies, such as eye movement desensitization and reprocessing (EMDR) therapy, as well as exploring novel treatments.

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The aim was to test if probiotics counteract oral dysbiosis during 14 days of sugar stress and subsequently help restore oral homeostasis. Eighty healthy individuals received either probiotics ( = 40) or placebo lozenges ( = 40) for 28 days and rinsed with a 10% sucrose solution 6-8 times during the initial 14 days of the trial. Saliva and supragingival samples were collected at baseline, day 14, and day 28.

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