Publications by authors named "Hermann N"

Objectives: To assess the degree of tooth wear in children and adolescents by application of a qualitative wear index and by quantitative measurement on digital models. The hypothesis was that the quantitative method would be sensitive to reliably measure tooth wear.

Methods: Existing digital models (n = 24) gathered from a prospective clinical study were analysed.

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The measurement of selected norepinephrine metabolites, such as 3,4-dihydroxyphenylglycol (DHPG), 3-methoxy-4-hydroxyphenylethylenglycol (MHPG), and vanillylmandelic acid (VMA), in biological matrices-including urine-is of great clinical importance for the diagnosis and monitoring of diseases. This fact has forced researchers to evaluate new analytical methodologies for their isolation and preconcentration from biological samples. In this study, the three most popular extraction techniques-liquid-liquid extraction (LLE), solid-phase extraction (SPE), and a new 3D-printed system for dispersive solid-phase extraction (3D-DSPE)-were investigated.

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Article Synopsis
  • The study aimed to explore the possibilities of pulp revascularization in mature anterior teeth affected by luxation injuries, particularly focusing on how patient age at the time of injury influences outcomes.
  • A total of 93 teeth from 70 patients were analyzed, with participants grouped by age, and risks of conditions like pulp canal obliteration (PCO) and pulp necrosis (PN) were calculated using specific statistical methods.
  • Results indicated that younger age groups had a lower risk of PN after 12 months compared to older groups, suggesting the potential for revascularization in patients up to 25 years old, but highlighting that the risk of PN increases with age.
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Article Synopsis
  • Biological sex is crucial for archeological and forensic studies, but current methods lack standardization for fast and accurate identification.
  • A new mass spectrometry-based workflow using human dental enamel allows for efficient sex determination, processing up to 200 samples per day with high accuracy.
  • This method has been validated on various teeth and successfully applied to archeological materials, enhancing the ability to study large populations rather than just individual specimens.
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With the steady increase in allergy prevalence worldwide, there is a strong need for novel diagnostic tools for precise, fast, and less invasive testing methods. Herein, a miniatured fluorescence-based biosensing system is developed for the rapid and quantitative detection of allergen-specific immunoglobulin-E. An antibody-based fluorescence assay in a microfluidic-patterned slide, combined with a custom-made portable fluorescence reader for image acquisition and user-friendly software for the data analysis, enables obtaining results for multiple allergens in just ~1 h with only 80 μL of blood serum.

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Anadromous rainbow smelt (Osmerus mordax, [Mitchill 1814]) are found along the northeast Atlantic coastline of North America, with their range now limited to north of Cape Cod, Massachusetts, USA. Although their anadromous life cycles are described broadly, gaps remain regarding how adult rainbow smelt use estuaries post-spawning, including movement behaviors, habitats used, and specific timing of emigration to coastal waters. In spring 2021, we used acoustic telemetry to characterize movements during and after the spawning season of rainbow smelt captured in tributaries to Great Bay, New Hampshire, USA, a large estuarine system near the southern edge of their range.

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Background: Identifying factors associated with the occurrence of primary tooth avulsion is essential to promote prevention strategies.

Aim: To investigate the risk factors associated with primary incisor avulsion and variables associated with post-avulsion sequelae in the permanent successor.

Design: This case-control study comprised 407 children (cases) with primary incisor avulsion and 407 children (controls) with other traumatic dental injuries (TDI).

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The aim of this study was to compare the assessment of tooth wear performed on digital models with the one conducted at the clinical examination. Seventy-eight volunteers (29 males and 49 females, age range 20-30 years) with at least 24 teeth, normal oral function, and a neutral transverse relationship were examined. During the clinical examination, dental wear was registered according to the Basic Erosive Wear Examination (BEWE) index.

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Immune checkpoint inhibitors have revolutionized cancer therapy, yet the efficacy of these treatments is often limited by the heterogeneous and hypoxic tumor microenvironment (TME) of solid tumors. In the TME, programmed death-ligand 1 (PD-L1) expression on cancer cells is mainly regulated by Interferon-gamma (IFN-γ), which induces T cell exhaustion and enables tumor immune evasion. In this study, we demonstrate that acidosis, a common characteristic of solid tumors, significantly increases IFN-γ-induced PD-L1 expression on aggressive cancer cells, thus promoting immune escape.

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Aim: To investigate the use of optical coherence tomography (OCT) as a tool to assess general and localised hypomineralisation defects in the enamel.

Design And Materials: Ten extracted permanent teeth (four teeth with localised hypomineralisation, four teeth with general hypomineralisation, and two healthy controls) were used in this study. In addition, four participants who underwent OCT served as living controls for the extracted teeth.

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Derazantinib (DZB) is an inhibitor of fibroblast growth factor receptors 1-3 (FGFR1-3), with additional activity against colony-stimulating-factor-1 receptor (CSF1R). We have profiled the activity of DZB in gastric cancer (GC) as monotherapy and combined with paclitaxel, and explored means of stratifying patients for treatment. The antiproliferative potency of DZB in vitro was quantified in 90 tumor cell lines and shown to correlate significantly with FGFR expression (<0.

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Background: Population screening for the BRCA mutations in Ashkenazi Jewish women was recently implemented in Israel and is expected to lead to a 10-fold increase in the diagnosis of asymptomatic carriers. Performing the screening follow-up within multidisciplinary dedicated clinics for carriers is recommended for early detection and risk reduction.

Objectives: : To determine the availability, capacity, and practices of dedicated screening clinic for BRCA carriers in Israel.

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Background: Sexual and reproductive health is crucial to a normal and healthy female life. However, little interest has been placed on this subject particularly in the resource-limited settings of Cameroon. The study assessed the sexual and reproductive health of women in union, resident in the Cameroon Development Corporation (CDC) plantation camps, Cameroon.

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Vitiligo-like depigmentation (VLD) is an immune-related adverse event (irAE) of checkpoint-inhibitor (CPI) treatment, which has previously been associated with a favourable outcome. The aim of this study was to explore clinical, biological and prognostic features of melanoma patients with VLD under CPI-treatment and to explore whether they exhibit a characteristic immune response profile in peripheral blood. Melanoma patients developing VLD under CPI were included in a prospective observational single-center cohort study.

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Calpains are a family of calcium-activated proteases involved in numerous disorders. Notably, previous studies have shown that calpain activity was substantially increased in various models for inherited retinal degeneration (RD). In the present study, we tested the capacity of the calpain-specific substrate -BOC-Leu-Met-CMAC to detect calpain activity in living retina, in organotypic retinal explant cultures derived from wild-type mice, as well as from and RD-mutant mice.

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Background: Radiologic screening for breast cancer is performed with the goal of diagnosing the disease at an earlier stage, thus reducing morbidity and mortality. Screening recommendations for women at higher than average risk for breast cancer differ from those of women with an average risk, and include yearly breast MRI and mammography starting at a young age.

Objectives: Review the morbidity and mortality, and check whether the goal of early diagnosis was achieved in the participants of the High-Risk Ontario Breast Screening Program at the Princess Margaret Cancer Centre, Ontario Canada.

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Objectives: The purpose of this retrospective cohort study was to investigate the occurrence of sequelae in the permanent teeth after avulsion of their primary antecessors and to evaluate the factors associated with this occurrence.

Methods: We screened 2922 records of patients with photographic and radiographic images who attended a reference centre for dental trauma in the primary teeth from 1998 to 2019. Among them, 240 were eligible records of children who had suffered avulsion of the primary incisors and were followed up until complete eruption of the permanent successors.

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Background: Cancer research faces the problem of high rates of clinical failure of new treatment approaches after positive preclinical data. We hypothesize that a major confounding factor to this problem in radiooncology is the choice of the preclinical endpoint.

Methods: We present a comprehensive re-evaluation of large-scale preclinical in-vivo data on fractionated irradiation alone or simultaneously with Epidermal Growth Factor Receptor inhibition.

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Breast reconstruction and oncoplastic surgery have become an important part of breast cancer care. The use of autologous breast reconstruction (ABR) has evolved significantly with advances in microsurgery, aiming to reduce donor site complications and improve cosmesis. For years, immediate-ABR was considered a contraindication if postmastectomy irradiation (PMRT) was planned.

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Objectives: To determine the developmental patterns of primary and secondary dentitions in infants with orofacial clefts.

Design: Retrospective, longitudinal, population-based cohort study.

Materials: Longitudinal records and radiographs of 192 nonsyndromic Northern European infants with isolated unilateral cleft lip (UCL, n = 111) and isolated cleft palate (CP, n = 81).

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Ever since screening for early breast cancer (BC) diagnosis was shown to decrease mortality from the disease, screening programs have been widely implemented throughout the world. Targeted age groups and schedules vary between countries but the majority use a population-based approach, regardless of personal BC risk. The purpose of this review was to describe current population-based screening practices, point out some of the shortcomings of these practices, describe BC risk factors and risk assessment models, and present ongoing clinical trials of personalized risk-adapted BC screening.

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Isolated orofacial clefts (OFC) are common with poorly understood aetiology. Heterogeneous phenotypes and subphenotypes confound aetiological variant findings. To improve OFC phenome understanding, population-based, consecutive, pre-treatment infants with isolated unilateral cleft lip (UCL, n = 183) and isolated cleft palate (CP, n = 83) of similar ancestry were grouped for deep phenotyping.

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Objective: To quantify soft tissue facial asymmetry (FA) in children with nonsyndromic and Muenke syndrome-associated unicoronal synostosis (NS-UCS and MS-UCS), hypothesizing that MS-UCS presents with significantly larger FA than NS-UCS.

Design: Retrospective cohort study.

Patients And Methods: Twenty-one children (mean age: 0.

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