Publications by authors named "Jhb van de Bovenkamp"

Article Synopsis
  • COVID-19 highlighted the urgent need for rapid diagnostic testing, revealing the limitations of traditional RT-qPCR methods, which are complex and time-consuming.
  • Loop-mediated isothermal amplification (LAMP) emerged as a faster, more flexible, and cost-effective alternative for detecting SARS-CoV-2 during the pandemic, though there was a need to scale this testing method due to increased demand.
  • The TOMi corona initiative developed the SMART-LAMP system, capable of processing 40,000 samples daily with comparable sensitivity to RT-qPCR, while focusing on sustainability and improving pandemic preparedness through automated testing technologies.
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The increased incidence of infections by vancomycin-resistant (VRE) causes an accumulation of patients who are either colonized with VRE or flagged as potentially colonized with VRE. Since such patients require precautionary isolation upon admission to a hospital, rapid methods to establish VRE colonization status would improve patient care and optimize hospital operation. We evaluated quantitative PCR (qPCR) on one enrichment broth as a VRE-screening approach.

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In Japan and Australia, multidrug-resistant Mycoplasma genitalium infections are reported with increasing frequency. Although macrolide-resistant M. genitalium strains are common in Europe and North America, fluoroquinolone-resistant strains are still exceptional.

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Mycoplasma genitalium and Trichomonas vaginalis are common sexually transmitted infections (STIs). In the Netherlands, testing for M. genitalium and T.

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We determined the prevalence and spread of antibiotic resistance and the characteristics of ESBL producing and/or multi drug resistant (MDR) Escherichia coli isolates collected from urine samples from urology services in the Euregio Meuse-Rhine, the border region of the Netherlands (n=176), Belgium (n=126) and Germany (n=119). Significant differences in resistance between the three regions were observed. Amoxicillin-clavulanic acid resistance ranged from 24% in the Netherlands to 39% in Belgium (p=0.

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The Siemens VERSANT kPCR system is an automated system which combines extraction of nucleic acids from 96 samples with subsequent real-time PCR. The VERSANT CT/GC DNA 1.0 (kPCR) assay detects Chlamydia trachomatis (CT) and Neisseria gonorrhoeae (GC) in a multiplex real-time PCR on this system.

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We have investigated how gastric H. pylori infection affects antrum secretory cell types by studying the expression of secretory proteins in antrum epithelium. Antrum biopsy specimens were prospectively collected from 102 individuals (49 H.

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Background And Objectives: Helicobacter pylori shows a characteristic tropism for the mucus-producing gastric epithelium. In infected patients, H. pylori colocalizes in situ with the gastric secretory mucin MUC5AC.

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Aims: Barrett's oesophagus constitutes metaplastic epithelium, often diagnosed by mucin histochemistry. We determined the mucins and trefoil factor family (TFF)-peptides that were expressed in Barrett's oesophagus, in order to study changes in protein expression in early stages of Barrett's oesophagus development.

Methods And Results: Biopsy specimens of 71 Barrett's oesophagus patients were collected, and sections were stained for secretory mucins by histochemistry.

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The origin of gastric metaplasia of the duodenum (GMD) remains enigmatic. We studied expression of mucins and trefoil peptides in GMD to gain insight into its phenotype and origin. We examined duodenal tissue of 95 patients (0 to 83 years old, 26 with gastric Helicobacter pylori infection) for the presence of GMD.

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Barrett's esophagus (BE) consists of metaplastic epithelium of the esophagus, generally diagnosed by mucin histochemistry. We aimed to determine which mucins were expressed in BE, and to relate their expression to BE pathology. Archival biopsies of 4 patient groups were selected, based on standard histochemistry: BE without inflammation, BE with inflammation, ulcerating BE, and BE with dysplasia.

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