372 results match your criteria: "Ruprecht Karl University[Affiliation]"

Accurate melanoma diagnosis is crucial for patient outcomes and reliability of AI diagnostic tools. We assess interrater variability among eight expert pathologists reviewing histopathological images and clinical metadata of 792 melanoma-suspicious lesions prospectively collected at eight German hospitals. Moreover, we provide access to the largest panel-validated dataset featuring dermoscopic and histopathological images with metadata.

View Article and Find Full Text PDF

Ductular reaction (DR) is the hallmark of cholestatic diseases manifested in the proliferation of bile ductules lined by biliary epithelial cells (BECs). It is commonly associated with an increased risk of fibrosis and liver failure. The receptor for advanced glycation end products (RAGE) was identified as a critical mediator of DR during chronic injury.

View Article and Find Full Text PDF

Immune-checkpoint inhibitors (ICIs) have revolutionized melanoma treatment, yet approximately half of patients do not respond to these therapies. Identifying prognostic biomarkers is crucial for treatment decisions. Our retrospective study assessed liquid biopsies and tumor tissue analyses for two potential biomarkers: danger-associated molecular pattern (DAMP) S100A8/A9 and its source, neutrophils.

View Article and Find Full Text PDF

Atrial Secondary Tricuspid Regurgitation: Insights Into the EuroTR Registry.

JACC Cardiovasc Interv

December 2024

Medizinische Klinik und Poliklinik I, LMU Klinikum, LMU München, Munich, Germany; German Center for Cardiovascular Research, Partner Site Munich Heart Alliance, Munich, Germany. Electronic address:

Article Synopsis
  • Atrial secondary tricuspid regurgitation (A-STR) is a subtype of secondary tricuspid regurgitation (STR) that is often treated with transcatheter tricuspid valve edge-to-edge repair (T-TEER), showing distinct patient characteristics and treatment outcomes.
  • A study involving 641 patients revealed that 31% had A-STR, which was linked to better heart function, a higher presence of atrial fibrillation, and more effective TR reduction post-procedure compared to nonatrial STR patients.
  • A-STR patients experienced improved survival rates and lower symptomatic burdens after treatment; only 38% remained symptomatic (NYHA class ≥III) after 2 years, compared to 46
View Article and Find Full Text PDF
Article Synopsis
  • Human gammadelta (γδ) T cells are present in healthy tissues and solid tumors, showing potential for strong anti-tumor effects, though results can vary across different cancer types.
  • The infiltration patterns of γδ T cells in the tumor microenvironment (TME) are crucial for understanding their complex interactions with tumors.
  • Various γδ T cell subsets can have both cytotoxic functions and immune-regulating roles, but their effectiveness can be hindered by factors in the TME, prompting ongoing research into their therapeutic use in cancer treatment.
View Article and Find Full Text PDF
Article Synopsis
  • Epigenetic heterogeneity plays a key role in how biological systems function and can influence tumor behavior and resistance to treatments.
  • The authors introduce a new tool called epiCHAOS, which measures variations in epigenetic traits between individual cells, regardless of their grouping.
  • After testing its effectiveness on simulated data, epiCHAOS is shown to reveal important insights into developmental and cancer-related characteristics, enhancing our understanding of single-cell epigenomics in these contexts.
View Article and Find Full Text PDF

Aims: Conventional parameters of right ventricular (RV) function are load-dependent and therefore do not accurately reflect contractility in patients with relevant tricuspid regurgitation (TR). RV adaptability to load has been characterized using the Dandel's index in patients with heart failure, but its prognostic value in patients undergoing tricuspid transcatheter edge-to-edge repair (T-TEER) has not been investigated so far.

Methods And Results: From the EuroTR registry (2019 to 2022), patients with complete datasets and a minimum of 2-years of follow-up were included.

View Article and Find Full Text PDF

CD24 is a mucin-like glycoprotein expressed on trophoblast cells and endothelial tissue of first and third trimester placentas. As an immune suppressor, CD24 may contribute to maternal immune tolerance to the growing fetus. CD24 is known to interact with the sialic acid-binding immunoglobulin-type lectins (Siglecs), specifically siglec-10.

View Article and Find Full Text PDF

At the beginning of the coronavirus disease 2019 (COVID-19) pandemic, uncertainties about the virus and its dangers during pregnancy caused great uncertainty and fear, especially among pregnant women. New data suggest an increased risk of obstetric complications, including maternal complications, preterm labor, intrauterine growth restriction, hypertensive disorders, stillbirths, gestational diabetes and risk, of neonatal developmental disorders. In addition, preeclampsia (PE)-like syndromes were also induced by severe COVID-19 infection.

View Article and Find Full Text PDF

Background: The EXCELLENT registry aimed to evaluate the effectiveness of the EMBOTRAP Revascularization Device in an all-comer population in a real-world setting, with a focus on the composition of retrieved clots.

Methods: EXCELLENT is a prospective, global registry of patients with acute ischemic stroke treated with EMBOTRAP as the first-line mechanical thrombectomy device conducted at 34 sites (25 sites contributing clot) from September 2018 to March 2021, utilizing core imaging and central histology laboratories blinded to clinical data, independent 90-day modified Rankin Scale assessment and Clinical Events Committee.

Results: After screening 3799 patients, a total of 997 subjects (mean age, 70.

View Article and Find Full Text PDF

Impact of Pulmonary Hypertension on Outcomes After Transcatheter Tricuspid Valve Edge-to-Edge Repair.

JACC Cardiovasc Interv

October 2024

Medizinische Klinik und Poliklinik I, LMU Klinikum, LMU München, Munich, Germany; German Center for Cardiovascular Research, Partner Site Munich Heart Alliance, Munich, Germany. Electronic address:

Article Synopsis
  • The study examined the effects of pulmonary hypertension (PH) on patients receiving transcatheter tricuspid valve edge-to-edge repair (T-TEER), focusing on survival rates and heart failure hospitalization outcomes.
  • Results showed that higher systolic pulmonary artery pressure (sPAP) was linked to increased risks of death or hospitalization within two years, with a notable threshold of sPAP > 46 mmHg identifying those at greater risk.
  • However, both the severity of heart failure symptoms and tricuspid regurgitation improved after T-TEER, regardless of whether patients had pre- or postcapillary PH.
View Article and Find Full Text PDF

Transcatheter Valve Repair for Tricuspid Regurgitation: 1-Year Results From a Large European Real-World Registry.

J Am Coll Cardiol

January 2025

Medizinische Klinik und Poliklinik I, LMU Klinikum, LMU München, Munich, Germany; German Center for Cardiovascular Research (DZHK), Partner Site Munich Heart Alliance, Munich, Germany. Electronic address:

Background: Tricuspid valve transcatheter edge-to-edge repair has emerged as a valuable treatment option for patients with severe tricuspid regurgitation (TR).

Objectives: This study aims to investigate the safety and effectiveness of the PASCAL transcatheter valve repair system in treating severe TR in a real-world patient population.

Methods: The PASTE (PASCAL for Tricuspid Regurgitation-a European registry) study is an investigator-initiated, multicenter, retrospective, and prospective observational cohort analysis conducted across 16 European heart valve centers including consecutive patients treated with the PASCAL transcatheter valve repair system from February 2019 to November 2023.

View Article and Find Full Text PDF

To present a long short-term memory (LSTM) network-based dose calculation method for magnetic resonance (MR)-guided proton therapy.35 planning computed tomography (CT) images of prostate cancer patients were collected for Monte Carlo (MC) dose calculation under a perpendicular 1.5 T magnetic field.

View Article and Find Full Text PDF
Article Synopsis
  • Scientists are studying how well AI can help find melanoma, a serious skin cancer, by testing it against dermatologists using a wide variety of skin images from different hospitals.
  • They found out that the AI was better at catching melanoma early compared to the dermatologists, which could help patients get treated faster.
  • The researchers think that using AI could be a great tool for doctors, especially for tricky cases of skin cancer.
View Article and Find Full Text PDF

Aged fibroblast-derived extracellular vesicles promote angiogenesis in melanoma.

Cell Rep

September 2024

Department of Biochemistry and Molecular Biology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA; Department of Oncology, Sidney Kimmel Cancer Center, Johns Hopkins School of Medicine, Baltimore, MD, USA. Electronic address:

Article Synopsis
  • Advancing age makes it harder for people to fight skin melanoma, a type of skin cancer.
  • Scientists found that tiny particles called extracellular vesicles (EVs) from older cells change in content, even though they look the same as those from younger cells.
  • A special protein called CD9 decreases as we age, which affects how these EVs can help tumors grow, making older cells better at supporting cancer.
View Article and Find Full Text PDF

Associations of luteal phase changes in vagally mediated heart rate variability with premenstrual emotional changes.

BMC Womens Health

August 2024

Institute of Medical Psychology, Center for Psychosocial Medicine (ZPM), Heidelberg University Hospital, Ruprecht Karl University of Heidelberg, Bergheimer Str. 20, Heidelberg, 69115, Germany.

Article Synopsis
  • * It involved 31 participants who reported daily negative emotions and attended lab visits during different menstrual phases to assess vmHRV and hormone levels.
  • * Findings indicate that most women experienced typical vmHRV decreases during the luteal phase, but only those with unusual increases in vmHRV experienced significant worsening of negative emotions before their period.
View Article and Find Full Text PDF

The purpose of this study was to determine if dual-energy CT (DECT) vital iodine tumor burden (ViTB), a direct assessment of tumor vascularity, allows reliable response assessment in patients with GIST compared to established CT criteria such as RECIST1.1 and modified Choi (mChoi). From 03/2014 to 12/2019, 138 patients (64 years [32-94 years]) with biopsy proven GIST were entered in this prospective, multi-center trial.

View Article and Find Full Text PDF

Shortened progression free and overall survival to immune-checkpoint inhibitors in BRAF-, RAS- and NF1- ("Triple") wild type melanomas.

Eur J Cancer

September 2024

Department of Dermatology, University Hospital Essen, Essen, Germany & German Cancer Consortium (DKTK), partner site Essen, Düsseldorf, Germany.

Background: Melanomas lacking mutations in BRAF, NRAS and NF1 are frequently referred to as "triple wild-type" (tWT) melanomas. They constitute 5-10 % of all melanomas and remain poorly characterized regarding clinical characteristics and response to therapy. This study investigates the largest multicenter collection of tWT-melanomas to date.

View Article and Find Full Text PDF

Purpose: To evaluate mid- to long-term clinical outcomes after arthroscopic bucket-handle meniscal tear (BHMT) repair and to assess the impact of concurrent anterior cruciate ligament reconstruction (ACLR).

Methods: A comparative retrospective case series with blinded outcome assessment was conducted. All consecutive patients treated with arthroscopic BHMT repair with or without concurrent ACLR between 2001 and 2021 were eligible for inclusion.

View Article and Find Full Text PDF
Article Synopsis
  • - The treatment options for metastatic uveal melanoma (UM) are still limited and the overall prognosis is poor, despite recent advancements; immune checkpoint blockade (ICB) is a common treatment but can cause severe adverse effects.
  • - A study involving 194 patients analyzed the relationship between immune-related adverse events (irAE) and survival outcomes, finding that those with severe irAE had better overall survival compared to those without or with mild irAE.
  • - The results suggest that certain types of irAE, like irColitis and irHepatitis, may be linked to longer survival, indicating that a lower tolerance to tumor antigens might correlate with a lower tolerance to self-antigens.
View Article and Find Full Text PDF

Clinical and genetic characteristics of -mutated non-uveal and uveal melanoma.

Front Immunol

June 2024

Department of Dermatology, University Hospital Essen, University of Duisburg-Essen, Germany & German Cancer Consortium (Deutsches Konsortium für Translationale Krebsforschung, DKTK), Essen, Germany.

Article Synopsis
  • Screening for gene mutations in melanoma has become standard practice, with identified mutations impacting prognosis in metastatic uveal melanoma, while their significance in non-uveal melanoma is still unclear.
  • A study analyzing 2,650 melanoma cases found mutations in 129 samples, highlighting differences in the prevalence and types of mutations between uveal and non-uveal melanomas.
  • Unlike uveal melanomas, where mutations are linked to worse outcomes, mutations in non-uveal melanomas are mostly seen as "passenger mutations" with little impact on prognosis or treatment effectiveness.
View Article and Find Full Text PDF

Innate-like T cells in liver disease.

Trends Immunol

July 2024

Department of Internal Medicine I, University Hospital Tübingen, Eberhard Karls University of Tübingen, Tübingen, Germany; M3 Research Center for Malignome, Metabolome, and Microbiome, Faculty of Medicine, University of Tübingen, Tübingen, Germany; Cluster of Excellence iFIT (EXC 2180) - Image-Guided and Functionally Instructed Tumor Therapies, University of Tübingen, Tübingen, Germany. Electronic address:

Article Synopsis
  • Mammalian innate-like T cells (ILTCs), such as MAIT, NKT, and γδ T cells, play key roles in liver inflammation, tissue repair, and maintaining immune balance.
  • The review discusses how different ILTC subsets contribute to liver diseases, focusing on their pro- and anti-inflammatory actions based on specific contexts.
  • Recent findings emphasize the interactions between ILTCs and other immune cells, suggesting potential immunomodulatory strategies for better outcomes in liver disease treatment.
View Article and Find Full Text PDF

Aims: Data on the prognostic impact of residual tricuspid regurgitation (TR) after tricuspid transcatheter edge-to-edge repair (T-TEER) are scarce. The aim of this analysis was to evaluate 2-year survival and symptomatic outcomes of patients in relation to residual TR after T-TEER.

Methods And Results: Using the large European Registry of Transcatheter Repair for Tricuspid Regurgitation (EuroTR registry) we investigated the impact of residual TR on 2-year all-cause mortality and New York Heart Association (NYHA) functional class at follow-up.

View Article and Find Full Text PDF