Publications by authors named "Greinert R"

Article Synopsis
  • NOD2 mutations are linked to decreased gut barrier function, and this study aimed to determine their relation to the first episode of decompensation in patients with compensated cirrhosis.
  • During the analysis of 360 patients, no overall difference in decompensation rates was found between those with and without NOD2 variants, but a notable increase in decompensation was observed in patients with varices carrying these variants.
  • The findings suggest that NOD2 variants might increase the risk of decompensation primarily in patients who already have varices, making MELD and NOD2 status critical predictors in this subgroup.
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One in every three cancers diagnosed is a skin cancer. Europe has the global lead in the number of UV-attributable cancer cases with the highest number of melanoma cases worldwide and the second highest number of keratinocyte cancers (KC). Further increases are expected in Europe for the coming decades.

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Real-world data on the management of patients with primary biliary cholangitis (PBC) are so far scarce in Germany. Therefore, we aimed to establish a nationwide registry and describe the clinical characteristics and therapy of PBC patients.Three different cohorts defined as ursodeoxycholic acid (UDCA) responders, as inadequate responders according to Paris II criteria, and as newly diagnosed patients were prospectively recruited.

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Infection with the protozoan parasite Trypanosoma cruzi is causative for Chagas disease, which is a highly neglected tropical disease prevalent in Latin America. Humans are primary infected through vectorial transmission by blood-sucking triatomine bugs. The parasite enters the human host through mucous membranes or small skin lesions.

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Circulating tumor DNA (ctDNA) is the cornerstone of liquid biopsy diagnostics, revealing clinically relevant genomic aberrations from blood of cancer patients. Genomic analysis of single circulating tumor cells (CTCs) could provide additional insights into intra-patient heterogeneity, but it requires whole-genome amplification (WGA) of DNA, which might introduce bias. Here, we describe a novel approach based on mass spectrometry for mutation detection from individual CTCs not requiring WGA and complex bioinformatics pipelines.

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Article Synopsis
  • Skin cancers are super common, especially in people with fair skin, and most of them are caused by UV rays from the sun, which means we can do things to prevent them.
  • Experts from different continents suggest that fair-skinned people, especially kids, should stay out of the sun when the UV level is 3 or higher and use protection like hats, sunglasses, clothing, and sunscreen.
  • They also believe sunbathing and using tanning beds are unhealthy, so they want to spread these ideas to help everyone stay safe from skin cancer.
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Introduction: This study explores how chronic pancreatitis (CP) relates to subclinical cognitive impairment (SCI) and its prevalence, characteristics, risk factors, and effects on patients' quality of life (QoL) and physical performance.

Methods: Patients with fulfilled CP criteria in imaging were prospectively enrolled. Overt encephalopathy, neurodegenerative disorders, decompensated cirrhosis, and sepsis were exclusion criteria.

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Solar radiation is the main risk factor for cSCC development, yet it is unclear whether the progression of cSCC is promoted by solar radiation in the same way as initial tumorigenesis. Additionally, the role of miRNAs, which exert crucial functions in various tumors, needs to be further elucidated in the context of cSCC progression and connection to solar radiation. Thus, we chronically irradiated five cSCC cell lines (Met-1, Met-4, SCC-12, SCC-13, SCL-II) with a custom-built irradiation device mimicking the solar spectrum (UVB, UVA, visible light (VIS), and near-infrared (IRA)).

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Actinic keratosis (AK) are common lesions in light-skinned individuals that can potentially progress to cutaneous squamous cell carcinoma (cSCC). Both conditions may be associated with significant morbidity and constitute a major disease burden, especially among the elderly. To establish an evidence-based framework for clinical decision making, the guideline "actinic keratosis and cutaneous squamous cell carcinoma" was updated and expanded by the topics cutaneous squamous cell carcinoma in situ (Bowen's disease) and actinic cheilitis.

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Background: Patients with cirrhosis who carry NOD2 mutations are susceptible to bacterial infections. The aim was to evaluate the association of NOD2 mutations with hepatic and systemic hemodynamics in cirrhosis.

Patients And Methods: This is a secondary analysis of a prospectively collected database in the context of the screening for the INCA trial (EudraCT 2013-001626-26).

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Article Synopsis
  • NOD2 risk variants are linked to problems with mucosal barrier function, bacterial translocation, and inflammation, but their presence doesn’t seem to impact hepatic encephalopathy (HE).
  • Study included 172 cirrhosis patients, with 31% carrying NOD2 variants; results showed no significant differences in HE severity or inflammation markers between those with and without these variants.
  • HE is associated with higher ammonia levels and systemic inflammation, as indicated by elevated CRP and soluble CD14, suggesting that while NOD2 variants don't influence HE, the condition itself is connected to inflammation.
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Introduction: The climate crisis has serious consequences for many areas of life. This applies in particular to human health - also in Europe. While cardiovascular, pneumological and dermatological diseases related to the climate crisis are often discussed, the crisis' significant gastroenterological consequences for health must also be considered.

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Dermal stem cells (DSCs), which are progenitor cells of melanocytes, are isolated from human foreskin and cultivated as mixed cultures containing both DSCs and fibroblasts in varying proportions. These contaminating fibroblasts may have an impact on the results of experimental studies and are a serious limitation for certain applications. The aim of the present study was to purify or enrich DSCs-an indispensable step towards future investigations.

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Background: Cognitive impairment (CI) in chronic kidney disease (CKD) is highly prevalent and is associated with multiple limitations to patients as well as a higher mortality, more days of hospitalisation and a lower quality of life. Frailty in CKD is associated with adverse health outcomes and is also highly prevalent. The aim of our study was to determine the prevalence and characteristics of CI and relate the findings to frailty, mobility, muscle strength and health-related quality of life (HRQOL).

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Outdoor and indoor tanning are considered as risk factors for the development of skin cancer. The aims of this nationwide representative study were to quantify both behaviors in a sample with a wide age range, to identify those showing both behaviors and to explore and compare determinants of both behaviors. We used data from the fifth wave (2019) of the National Cancer Aid Monitoring (NCAM).

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The aim of this study was to evaluate potential criteria for defining hyperdynamic circulation in patients with cirrhosis according to the severity of ascites and its association with the activation of vasoactive systems and markers of systemic inflammation. Cross-sectional study of patients with cirrhosis and right heart catheter measurement from two different academic centers. We evaluated systemic vascular resistance (SVR)/cardiac output (CO) according to ascites severity.

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To understand the importance of terrestrial solar exposure on human skin, not only individual spectral components need to be considered in biomedical studies, but also the relevance of the combined action profile of the complete solar spectrum (cSS) must be established. We therefore developed a novel irradiation device that combines the emission of four individual lamps (UVB, UVA, VIS and nIR) to achieve exposure from 280 to 1400 nm with individual controllable lamps. The integrated irradiance of each spectral band is similar to the solar spectrum.

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Complications of cirrhosis and portal hypertension (PH) can be reduced by statin therapy. The common loss-of-function variant p.V174A in the solute carrier organic anion transporter gene 1B1 (SLCO1B1) gene encoding the organic anion transporting polypeptide 1B1 results in decreased hepatic uptake of statins.

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Up to 40% of advance lung, melanoma and breast cancer patients suffer from brain metastases (BM) with increasing incidence. Here, we assessed whether circulating tumor cells (CTCs) in peripheral blood can serve as a disease surrogate, focusing on CD44 and CD74 expression as prognostic markers for BM. We show that a size-based microfluidic approach in combination with a semi-automated cell recognition system are well suited for CTC detection in BM patients and allow further characterization of tumor cells potentially derived from BM.

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Ultraviolet B (UVB) radiation induces mutagenic DNA photolesions in skin cells especially in form of cyclobutane pyrimidine dimers (CPDs). Protection mechanisms as DNA repair and apoptosis are of great importance in order to prevent skin carcinogenesis. In human skin, neural crest-derived precursors of melanocytes, the dermal stem cells (DSCs), are discussed to be at the origin of melanoma.

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Background:  In patients with inflammatory bowel disease (IBD), diagnosis is often established at the beginning of childbearing age. Accordingly, concerns about family planning and pregnancy (FPP) are common. Poor knowledge regarding FPP might contribute to increased childlessness in patients with IBD.

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Background & Aims: Bacterial infections (BI) affect the natural course of cirrhosis and were suggested to be a landmark event marking the transition to the decompensated stage. Our specific aim was to evaluate the impact of BI on the natural history of compensated cirrhosis.

Methods: We analyzed 858 patients with cirrhosis, evaluated for the INCA trial (EudraCT 2013-001626-26) in 2 academic medical centers between February 2014 and May 2019.

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