Introduction: Transthyretin cardiac amyloidosis is a pathology increasingly encountered in all hospital departments, including internal medicine. The aim of our study is to describe the characteristics and care pathway of patients with transthyretin cardiac amyloidosis in internal medicine and to show that the number of patients diagnosed is increasing.
Methods: Descriptive, retrospective, non-interventional, single-center study at Strasbourg University Hospitals (HUS).
The chlamydial deubiquitinase Cdu1 of the obligate intracellular human pathogenic bacterium Chlamydia trachomatis plays important roles in the maintenance of chlamydial infection. Despite the structural similarities shared with its homologue Cdu2, both DUBs display remarkable differences in their enzymatic activity towards poly-UB chain substrates. Whereas Cdu1 is highly active towards K48- and K63- poly-UB chains, Cdu2 activity is restricted mostly to mono-UB substrates.
View Article and Find Full Text PDFcauses life-threatening invasive infections that are hard to diagnose and treat, with drug resistance leading to treatment failure. The goal of this study was to develop VHH (single variable domain on a heavy chain) nanobodies to detect drug-resistant infections. Llamas were immunized with a mixture of heat killed and fixed cells of different morphologies.
View Article and Find Full Text PDFMosquito-borne diseases are a major global health threat. Traditional morphological or molecular methods for identifying mosquito species often require specialized expertise or expensive laboratory equipment. The use of convolutional neural networks (CNNs) to identify mosquito species based on images may offer a promising alternative, but their practical implementation often remains limited.
View Article and Find Full Text PDFBackground: Mosquitoes are important vectors of pathogens. They are usually collected with CO-baited traps and subsequently identified by morphology. This procedure is very time-consuming.
View Article and Find Full Text PDFThe development of cancer therapeutics is often hindered by the fact that specific oncogenes cannot be directly pharmaceutically addressed. Targeting deubiquitylases that stabilize these oncogenes provides a promising alternative. USP28 and USP25 have been identified as such target deubiquitylases, and several small-molecule inhibitors indiscriminately inhibiting both enzymes have been developed.
View Article and Find Full Text PDFNat Struct Mol Biol
October 2024
The superfamily 2 helicase XPD is a central component of the general transcription factor II H (TFIIH), which is essential for transcription and nucleotide excision DNA repair (NER). Within these two processes, the helicase function of XPD is vital for NER but not for transcription initiation, where XPD acts only as a scaffold for other factors. Using cryo-EM, we deciphered one of the most enigmatic steps in XPD helicase action: the active separation of double-stranded DNA (dsDNA) and its stalling upon approaching a DNA interstrand cross-link, a highly toxic form of DNA damage.
View Article and Find Full Text PDFHead and neck squamous-cell carcinoma (HNSCC) is associated with aggressive local invasiveness, being a main reason for its poor prognosis. The exact mechanisms underlying the strong invasive abilities of HNSCC remain to be elucidated. Therefore, there is a need for in vitro models to study the interplay between cancer cells and normal adjacent tissue at the invasive tumor front.
View Article and Find Full Text PDFProstate cancer (PCa) is a significant health problem in the male population of the Western world. Magnetic resonance elastography (MRE), an emerging medical imaging technique sensitive to mechanical properties of biological tissues, detects PCa based on abnormally high stiffness and viscosity values. Yet, the origin of these changes in tissue properties and how they correlate with histopathological markers and tumor aggressiveness are largely unknown, hindering the use of tumor biomechanical properties for establishing a noninvasive PCa staging system.
View Article and Find Full Text PDFCells can adapt their active contractile properties to switch between dynamical migratory states and static homeostasis. Collective tissue surface tension, generated among others by the cortical contractility of single cells, can keep cell clusters compact, while a more bipolar, anisotropic contractility is predominantly used by mesenchymal cells to pull themselves into the extracellular matrix (ECM). Here, we investigate how these two contractility modes relate to cancer cell escape into the ECM.
View Article and Find Full Text PDFObjective: Reinforcement and sustainability of sports and exercise therapy in inpatient depression treatment.
Methods: Randomized controlled study with 3 measurement times: t admission to the study, t after four weeks, t two months after discharge. 96 inpatients with depressive disorders (ICD-10 F32, F33) were randomly assigned to an intervention group (IG) or a control group (KG).
Objective: To assess the histological injury and intestinal microperfusion measured by laser Doppler flowmetry and spectrophotometry (LDFS) of the small intestine orad to a strangulation during colic surgery.
Animals: Horses with naturally occurring small intestinal strangulations undergoing colic surgery were included.
Methods: In this prospective clinical trial, intestinal tissue oxygen saturation (tSO2) and tissue blood flow (tBF) were measured by LDFS orad to the strangulation following release of the strangulation (n = 18).
Two strains, Mel and AlbB, have been transinfected into mosquitoes for population replacement with the aim of reducing dengue transmission. Epidemiological data from various endemic sites suggest a pronounced decrease in dengue transmission after implementing this strategy. In this study, we investigated the impact of the strains Mel and AlbB on fitness in a common genetic background.
View Article and Find Full Text PDFAccurate species identification is crucial to assess the medical relevance of a mosquito specimen, but requires intensive experience of the observers and well-equipped laboratories. In this proof-of-concept study, we developed a convolutional neural network (CNN) to identify seven Aedes species by wing images, only. While previous studies used images of the whole mosquito body, the nearly two-dimensional wings may facilitate standardized image capture and reduce the complexity of the CNN implementation.
View Article and Find Full Text PDFIn cell clusters, the prominent factors at play encompass contractility-based enhanced tissue surface tension and cell unjamming transition. The former effect pertains to the boundary effect, while the latter constitutes a bulk effect. Both effects share outcomes of inducing significant elongation in cells.
View Article and Find Full Text PDFBackground: Few case reports describe equine coxofemoral joint osteoarthritis (CFJOA).
Objectives: To evaluate diagnostic findings and outcome of horses with CFJOA and to provide a score facilitating radiographic assessment.
Study Design: Retrospective case series.
Background: Aedes japonicus japonicus (Theobald, 1901) and Aedes koreicus (Edwards, 1917) have rapidly spread in Europe over the last decades. Both species are very closely related and occur in sympatry. Females and males are difficult to distinguish.
View Article and Find Full Text PDFThe spatial distribution of mosquito species in the course of globalization and climate warming is highly dynamic. Different studies have demonstrated the spread and establishment of thermophilic mosquito species, potentially increasing the prevalence of 'nuisance' mosquitoes and the local transmission of pathogens. Here we report the first recorded sampling of Anopheles hyrcanus in Wrocław, southwest Poland.
View Article and Find Full Text PDFBackground: The impact of the arbovirus vector Aedes aegypti is of major concern for global public health as the viruses that it transmits affect millions of people each year worldwide. Originating in Africa, Ae. aegypti has now spread throughout much of the world.
View Article and Find Full Text PDFs.s./ belong to the most widespread mosquito taxa in Europe and are the main vectors of Sindbis, West Nile and Usutu virus.
View Article and Find Full Text PDFPulmonary arterial hypertension (PAH) is a rare disease characterized by pulmonary vascular remodeling leading to right heart failure and death. To date, despite the three therapeutic approaches targeting the three major endothelial dysfunction pathways based on the prostacyclin, nitric oxide/cyclic guanosine monophosphate, and endothelin pathways, PAH remains a serious disease. As such, new targets and therapeutic agents are needed.
View Article and Find Full Text PDFObjective: To describe the treatment and outcome of a foal with a fresh allogenic cancellous bone graft after surgical debridement of a traumatic septic osteitis.
Animal: A neonatal Quarter Horse foal.
Study Design: Case report.