520 results match your criteria: "Christian-Albrecht University[Affiliation]"

Infection prevention and control (IPC) professionals are key intermediaries between hospital managers and frontline staff. During the novel coronavirus disease pandemic, IPC professionals faced new challenges. Unfortunately, research on human resource management (HRM) to support IPC during and between pandemics is lacking.

View Article and Find Full Text PDF

Cerium-based Metal-Organic frameworks (Ce-MOFs) are attracting increasing interest due to their similar structural features to zirconium MOFs. The redox behavior of Ce(III/IV) adds a range of properties to the compounds. Recently, perfluorinated linkers have been used in the synthesis of MOFs to introduce new characteristic into the structure.

View Article and Find Full Text PDF

Tumor-associated microglia and blood-derived macrophages (TAMs) play a central role in modulating the immune suppressive microenvironment in glioma. Here, we show that GPNMB is predominantly expressed by TAMs in human glioblastoma multiforme and the murine RCAS-PDGFb high grade glioma model. Loss of GPNMB in the in vivo tumor microenvironment results in significantly smaller tumor volumes and generates a pro-inflammatory innate and adaptive immune cell microenvironment.

View Article and Find Full Text PDF

Peru's holds the highest COVID death rate per capita worldwide. Key to this outcome is the lack of robust, rapid, and accurate molecular tests to circumvent the elevated costs and logistics of SARS-CoV-2 detection via RT-qPCR. To facilitate massive and timely COVID-19 testing in rural and socioeconomically deprived contexts, we implemented and validated RCSMS, a rapid and sensitive CRISPR-Cas12a test for the molecular detection of SARS-CoV-2 from saliva.

View Article and Find Full Text PDF

Acute lymphoblastic leukemia (ALL) arises from the uncontrolled proliferation of B-cell precursors (BCP-ALL) or T cells (T-ALL). Current treatment protocols obtain high cure rates in children but are based on toxic polychemotherapy. Novel therapies are urgently needed, especially in relapsed/refractory (R/R) disease, high-risk (HR) leukemias and T-ALL, in which immunotherapy approaches remain scarce.

View Article and Find Full Text PDF

The mycobiota are a critical part of the gut microbiome, but host-fungal interactions and specific functional contributions of commensal fungi to host fitness remain incompletely understood. Here, we report the identification of a new fungal commensal, Kazachstania heterogenica var. weizmannii, isolated from murine intestines.

View Article and Find Full Text PDF

The proteome response to two protective symbionts.

mBio

April 2024

Department of Evolutionary Ecology and Genetics, Zoological Institute, Christian-Albrecht University, Kiel, Germany.

The natural microbiota isolates MYb11 and MYb115 protect the host against pathogens through distinct mechanisms. While produces an antimicrobial compound and directly inhibits pathogen growth, MYb115 protects the host without affecting pathogen growth. It is unknown how these two protective microbes affect host biological processes.

View Article and Find Full Text PDF

Variable carbon isotope fractionation of photosynthetic communities over depth in an open-ocean euphotic zone.

Proc Natl Acad Sci U S A

March 2024

Department of Ocean Sciences, Rosenstiel School of Marine, Atmospheric, and Earth Science, University of Miami, Miami, FL 33149.

Marine particulate organic carbon (POC) contributes to carbon export, food webs, and sediments, but uncertainties remain in its origins. Globally, variations in stable carbon isotope ratios (δC values) of POC between the upper and lower euphotic zones (LEZ) indicate either varying aspects of photosynthetic communities or degradative alteration of POC. During summertime in the subtropical north Atlantic Ocean, we find that δC values of the photosynthetic product phytol decreased by 6.

View Article and Find Full Text PDF

Temporal dynamics of gut microbiomes in non-industrialized urban Amazonia.

mSystems

March 2024

Genetics and Molecular Biology Program, Universidade Federal do Pará, Belém, Pará, Brazil.

Increasing levels of industrialization have been associated with changes in gut microbiome structure and loss of features thought to be crucial for maintaining gut ecological balance. The stability of gut microbial communities over time within individuals seems to be largely affected by these changes but has been overlooked among transitioning populations from low- to middle-income countries. Here, we used metagenomic sequencing to characterize the temporal dynamics in gut microbiomes of 24 individuals living an urban non-industrialized lifestyle in the Brazilian Amazon.

View Article and Find Full Text PDF

Introduction: Infection prevention and control (IPC) teams are routinely confronted with intense emotions in their daily work, as they are involved in many change processes with front-line medical staff, for example, when promoting compliance with basic IPC measures. In addition, they are confronted with challenges due to their role as intermediaries. Based on former research, this study aims to empower IPC teams to promote clinicians' compliance through interventions focusing on the IPC teams' leadership skills.

View Article and Find Full Text PDF
Article Synopsis
  • * In studies with 99 healthy volunteers, etrasimod was generally well-tolerated up to a dose of 3 mg, with the most common side effects being gastrointestinal issues, and no severe adverse events reported.
  • * The drug showed a significant impact on lymphocyte levels in the blood, reducing them by about 41% to 68% after 21 days of treatment, and heart rate decreases were mild, indicating a favorable profile for further development in treating inflammatory diseases.
View Article and Find Full Text PDF

Background: Digital media-use disorders (DMUD) in adolescents are a rising phenomenon associated with psychological distress, comorbid mental disorders, and high burden on affected families. Since the ICD-11 introduced criteria for gaming disorder, these can now be transferred to describe additional DMUD associated with social media platforms and streaming services. Most evidence for effective treatments comes from cognitive-behavioral therapy (CBT).

View Article and Find Full Text PDF

Light-switchable diazocines as potential inhibitors of testosterone-synthesizing 17β-hydroxysteroid dehydrogenase 3.

Chem Biol Interact

February 2024

Institute of Toxicology and Pharmacology for Natural Scientists, University Medical School Schleswig-Holstein, Campus Kiel, Brunswiker Str. 10, 24105 Kiel, Germany. Electronic address:

In patients with prostate carcinoma as well as in some other cancer types, the reduction of testosterone levels is desired because the hormone stimulates cancer cell growth. One molecular target for this goal is the inhibition of 17β-hydroxysteroid dehydrogenase type 3 (17βHSD3), which produces testosterone from its direct precursor androstenedione. Recent research in this field is trying to harness photopharmacological properties of certain compounds so that the inhibitory effect could be turned on and off by irradiation.

View Article and Find Full Text PDF

The degree of cyclization, or ring index (RI), in archaeal glycerol dibiphytanyl glycerol tetraether (GDGT) lipids was long thought to reflect homeoviscous adaptation to temperature. However, more recent experiments show that other factors (e.g.

View Article and Find Full Text PDF
Article Synopsis
  • Transcatheter pulmonary valve replacement is a developing minimally-invasive treatment for right ventricular outflow tract dysfunction, addressing the limitations of current heart valve options.
  • Researchers created 3D tissue-engineered tri-leaflet valved stent grafts using biodegradable PCL nanofiber scaffolds seeded with different types of stem cells.
  • The study observed that over 90% of the heart valve leaflets were covered with cells after three weeks, demonstrating the potential for these engineered valves to improve future treatments.
View Article and Find Full Text PDF

Background: In Germany, homeless people are entitled to health care within the regular health care system. However, due to their specific living conditions they make little use of these services. In 2013, three Medical centres for the homeless (MCH) were opened in Hamburg to provide general health care.

View Article and Find Full Text PDF

This study was the first to investigate the key reproductive traits of the electric lantern fish Electrona risso (Myctophidae, n = 918) and the bigscale fishes (Melamphaidae) Melamphaes polylepis (n = 260) and Scopelogadus mizolepis (n = 649). Specimens of these mesopelagic species were collected in March and April 2015 in the eastern Central Atlantic (0-24° N, 20-26° W). Sex ratio was not significantly different from 1:1 in E.

View Article and Find Full Text PDF

Growth factor independence 1 (GFI1) is a DNA-binding transcription factor and a key regulator of hematopoiesis. GFI1-36N is a germ line variant, causing a change of serine (S) to asparagine (N) at position 36. We previously reported that the GFI1-36N allele has a prevalence of 10% to 15% among patients with acute myeloid leukemia (AML) and 5% to 7% among healthy Caucasians and promotes the development of this disease.

View Article and Find Full Text PDF

Multidrug-resistant gram-negative pathogens such as have become increasingly difficult to treat and therefore alternative treatment options are needed. Targeting virulence factors like biofilm formation could be one such option. Inhibition of biofilm-related structures like curli and cellulose formation in has been shown for different phenolic natural compounds like epigallocatechin gallate.

View Article and Find Full Text PDF

Barley shows reduced Fusarium head blight under drought and modular expression of differentially expressed genes under combined stress.

J Exp Bot

November 2023

Chair of Phytopathology, TUM School of Life Sciences, HEF World Agricultural Systems Center, Technical University of Munich, Emil-Ramann Str. 2, 85354 Freising-Weihenstephan, Germany.

Plants often face simultaneous abiotic and biotic stress conditions; however, physiological and transcriptional responses under such combined stress conditions are still not fully understood. Spring barley (Hordeum vulgare) is susceptible to Fusarium head blight (FHB), which is strongly affected by weather conditions. We therefore studied the potential influence of drought on FHB severity and plant responses in three varieties of different susceptibility.

View Article and Find Full Text PDF

Insights into Taxol® biosynthesis by endophytic fungi.

Appl Microbiol Biotechnol

October 2023

Department of Genetics & Molecular Biology in Botany, Botanical Institute and Botanical Garden, Christian-Albrecht University of Kiel, Olshausenstraße 40, 24098, Kiel, Germany.

There have been two hundred reports that endophytic fungi produce Taxol®, but its production yield is often rather low. Although considerable efforts have been made to increase Taxol/taxanes production in fungi by manipulating cocultures, mutagenesis, genome shuffles, and gene overexpression, little is known about the molecular signatures of Taxol biosynthesis and its regulation. It is known that some fungi have orthologs of the Taxol biosynthetic pathway, but the overall architecture of this pathway is unknown.

View Article and Find Full Text PDF

We report the electroencephalography (EEG) showing an intermittent generalized polyspike pattern in EEG due to an aseptic meningoencephalitis in a 71-year-old soporous patient. Initially, she presented with word-finding disturbances and later with generalized tonic-clonic seizures. The cerebrospinal fluid (CSF) showed pleocytosis of 99 leukocytes/μL (primarily neutrophils) and an increased protein level of 1240 mg/L (CSF/serum glucose ratio and lactate unremarkable).

View Article and Find Full Text PDF