Publications by authors named "Steffen Bohm"

Purpose: Numerous studies report on the outcome performance of posterior composite restorations. However, there are fewer studies providing data for anterior restorations. The aim of this study was to evaluate the clinical outcome performance of anterior permanent restorations by analyzing a large dataset from a German national health insurance company.

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To commemorate 40 years since the founding of the Journal of Business Ethics, the editors in chief of the journal have invited the editors to provide commentaries on the future of business ethics. This essay comprises a selection of commentaries aimed at creating dialogue around the theme . For much of the history of the Journal of Business Ethics, ethics was seen within the academy as a peripheral aspect of business.

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Objectives: Molar incisor hypomineralization (MIH) has become a major oral health problem of widely unknown origin. Besides genetic predisposition, exposure to certain drugs in early childhood are suspected to be associated with MIH. Aim of this routine data analysis was to examine associations of MIH and exposure to medication as well as perinatal factors.

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This article examines corporate social responsibility (CSR) through the lens of political ontology. We contend that CSR is not only a discursive mean of legitimization but an inherently ontological practice through which particular worlds become real. CSR enables the politics of place-making, connecting humans and nonhumans in specific territorial configurations in accordance with corporate needs and interests.

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Oral health surveys are considered the gold standard for assessing the caries experience of children. Analyses of routine data offer additional opportunities not yet fully explored. This study aimed at estimating the caries treatment experience by mining an insurance claims database.

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Neoadjuvant chemotherapy (NACT) may stimulate anticancer adaptive immune responses in high-grade serous ovarian cancer (HGSOC), but little is known about effects on innate immunity. Using omental biopsies from HGSOC, and omental tumors from orthotopic mouse HGSOC models that replicate the human tumor microenvironment, we studied the impact of platinum-based NACT on tumor-associated macrophages (TAM). We found that chemotherapy reduces markers associated with alternative macrophage activation while increasing expression of proinflammatory pathways, with evidence of inflammasome activation.

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Statement Of Problem: Metal and metal-ceramic fixed dental prostheses (FDPs) have been clinically determined to provide long-term durable restorations. However, data on their performance under practice conditions are sparse.

Purpose: The purpose of this clinical study was to evaluate the longevity of FDPs under practice conditions by analyzing a large insurance claims database.

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Objectives: Numerous clinical trials have proven the long-term stability of metal and metal-ceramic crowns. However, data on their performance under practice conditions are rare.

Purpose: To evaluate the longevity of crowns by means of massive data analyses.

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Objectives: The aim was to evaluate the impact of diabetes on the outcome of periodontal treatment based on massive data analyses.

Materials And Methods: Data originated from the database of a major German National Health Insurance. Patients who underwent periodontal treatment were allocated to four groups according to their medical condition: type 1 diabetes (D1), type 2 diabetes with the intake of oral anti-diabetics (D2M), type 2 diabetes without the intake of oral anti-diabetics (D2), and a control group without diabetes (ND).

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Background: In colorectal and breast cancer, the density and localisation of immune infiltrates provides strong prognostic information. We asked whether similar automated quantitation and combined analysis of immune infiltrates could refine prognostic information in high-grade serous ovarian carcinoma (HGSOC) and tested associations between patterns of immune response and genomic driver alterations.

Methods: Epithelium and stroma were semi-automatically segmented and the infiltration of CD45RO, CD8 and CD68 cells was automatically quantified from images of 332 HGSOC patient tissue microarray cores.

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Background: Studies suggest that local food may contribute to well-being, but do not use standardized measures, or control groups.

Methods: An online survey compared participants of local food initiatives (n = 302) with members of the general population (n = 157) in terms of scores on standardized measures of well-being and distress. Using hierarchical ordinary least squares regression models, we explored the relationship between participation and well-being via four mediators-nature connectedness, psychological need satisfaction, diet and physical activity.

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Objective: There is a need to develop and validate biomarkers for treatment response and survival in tubo-ovarian high-grade serous carcinoma (HGSC). The chemotherapy response score (CRS) stratifies patients into complete/near-complete (CRS3), partial (CRS2), and no/minimal (CRS1) response after neoadjuvant chemotherapy (NACT). Our aim was to review current evidence to determine whether the CRS is prognostic in women with tubo-ovarian HGSC treated with NACT.

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Objective: The Chemotherapy Response Scoring (CRS) system was developed to enable reproducible reporting of histologic tumor response in interval debulking specimens following neoadjuvant chemotherapy in advanced stage tubo-ovarian high-grade serous carcinoma. This prognostic biomarker has been included in ovarian cancer pathology reporting guidelines (International Collaboration on Cancer Reporting, College of American Pathologists) and in the upcoming European Society for Medical Oncology-European Society of Gynaecological Oncology (ESMO-ESGO) guidelines for ovarian cancer management. We present follow-up data on the CRS validation initiatives and suggest research with novel therapeutic agents incorporating this biomarker.

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Objectives: The aim of this study was to evaluate tooth loss after periodontal treatment.

Methods: The data was collected from the digital database of a major German national health insurance company. Periodontal treatment was the intervention in the treatment group.

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We have profiled, for the first time, an evolving human metastatic microenvironment by measuring gene expression, matrisome proteomics, cytokine and chemokine levels, cellularity, extracellular matrix organization, and biomechanical properties, all on the same sample. Using biopsies of high-grade serous ovarian cancer metastases that ranged from minimal to extensive disease, we show how nonmalignant cell densities and cytokine networks evolve with disease progression. Multivariate integration of the different components allowed us to define, for the first time, gene and protein profiles that predict extent of disease and tissue stiffness, while also revealing the complexity and dynamic nature of matrisome remodeling during development of metastases.

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Objective: To report first-hand narrative experience of autoimmune encephalitis and to briefly review currently available evidence of autoimmune encephalitis in cancer patients treated with immune checkpoint inhibitors.

Setting: A case study is presented on the management of a patient who developed autoimmune encephalitis during nivolumab monotherapy occurring after 28 weeks on anti-PD-1 monotherapy (nivolumab 3 mg/kg every 2 weeks) for non-small cell lung cancer.

Results: No substantial improvement was observed by antiepileptic treatment.

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Aims: The treatment of patients with tubo-ovarian high-grade serous carcinoma (HGSC) is increasingly based on diagnosis on small biopsy samples, and the first surgical sample is often taken post-chemotherapy. p53 and WT1 are important diagnostic markers for HGSC. The effect of neoadjuvant chemotherapy on p53 and WT1 expression has not been widely studied.

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Objectives: There is only sparse knowledge concerning the outcomes of treatments with posterior permanent restorations in general practice settings. This study aimed at evaluating outcomes based on a large dataset by using a novel approach on a tooth surface basis.

Materials And Methods: The study based on routine data from a major German national health insurance company.

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Objectives: The aim of this study was to examine re-interventions after restorative treatment.

Methods: The data was collected from the digital database of a major German national health insurance company. Only permanent teeth were observed.

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A 3-tier histopathologic scoring system, the chemotherapy response score (CRS), was previously devised for reporting the histologic response to neoadjuvant chemotherapy in interval debulking surgery specimens of stage IIIc/IV tuboovarian high-grade serous carcinoma. This has been shown to predict the outcome and offer additional information to other methods of assessing the treatment response. In the present study, the reproducibility of this scoring system was assessed by determining the interobserver agreement among reporting pathologists.

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Purpose: In high-grade serous ovarian cancer (HGSOC), higher densities of both B cells and the CD8 T-cell infiltrate were associated with a better prognosis. However, the precise role of B cells in the antitumor response remains unknown. As peritoneal metastases are often responsible for relapse, our aim was to characterize the role of B cells in the antitumor immune response in HGSOC metastases.

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Purpose: The purpose of this study was to assess the effect of neoadjuvant chemotherapy (NACT) on immune activation in stage IIIC/IV tubo-ovarian high-grade serous carcinoma (HGSC), and its relationship to treatment response.

Experimental Design: We obtained pre- and posttreatment omental biopsies and blood samples from a total of 54 patients undergoing platinum-based NACT and 6 patients undergoing primary debulking surgery. We measured T-cell density and phenotype, immune activation, and markers of cancer-related inflammation using IHC, flow cytometry, electrochemiluminescence assays, and RNA sequencing and related our findings to the histopathologic treatment response.

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Previous cancer vaccination trials often aimed to activate CD8(+) cytotoxic T-cell (CTL) responses with short (8-10mer) peptides and targeted CD4(+) helper T cells (TH) with HLA class II-binding longer peptides (12-16 mer) that were derived from tumor antigens. Accordingly, a study of immunomonitoring focused on the detection of CTL responses to the short, and TH responses to the long, peptides. The possible induction of concurrent TH responses to short peptides was widely neglected.

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