Publications by authors named "Daniel Schmidt"

Background And Purpose: To evaluate the dosimetric and toxicity profiles of stereotactic body radiotherapy (SBRT) for prostate cancer, comparing cohorts with and without intraprostatic boost (IPB) to assess feasibility and safety of IPB, with particular attention to urethral and bladder dose and toxicity.

Materials And Methods: This retrospective cohort study analyzed 349 patients with localized prostate cancer treated between 2018 and 2023. Of these, 266 received SBRT with IPB, and 83 received SBRT without IPB.

View Article and Find Full Text PDF

: Human tendon properties influence athletic performance, and it was shown that Achilles tendon (AT) stiffness correlates with an athlete's jumping performance across sports. However, the findings on this relationship between basketball and soccer are different. Hence, this study examined the relationship between AT stiffness and jumping performance in male athletes.

View Article and Find Full Text PDF

The acquisition of metastatic features in tumor cells encompasses genetic and non-genetic adaptation, including reprogramming of cellular metabolism. Here we show that loss of UFMylation reroutes glucose metabolism, promotes invasive capacity and supports prostate cancer metastasis. Through transcriptome-based bioinformatics analysis, we identified a reduction in the ubiquitin-like modifier UFM1 and its ligase UFL1 in metastatic prostate cancer.

View Article and Find Full Text PDF

This study explores the use of self-assembled monolayers (SAMs) to improve release properties on chrome oxide surfaces by reducing surface energy. Four molecules (octadecanethiol (ODT), octylphosphonic acid (OPA), octadecylphosphonic acid (ODPA), and octadecyltrichlorosilane (OTS)) were investigated for self-assembly. SAM formation on the chrome oxide substrate was investigated at short (5 min) and long (1 h) time durations at a 5 mM molecular concentration.

View Article and Find Full Text PDF

The electronic structure of oxyhemoglobin has been controversial since the discovery of the compound's diamagnetism in 1936. This study uses partial fluorescence yield Fe L-edge X-ray absorption spectroscopy (XAS) in the 3s→2p fluorescence on oxyhemoglobin solutions, measured using a transition-edge sensor detector, to obtain a quantitative experimental description of the electronic structure of the O-bound iron site. The spectrum is very different from typical low-spin Fe and Fe heme spectra, and multiplet simulations indicate a mixed ground configuration with ∼57% low-spin Fe and ∼43% low-spin Fe character.

View Article and Find Full Text PDF

BH3 mimetic drugs that inhibit BCL-2, BCL-XL, or MCL-1 have limited activity in solid tumors. Through assessment of xenograft-derived 3D prostate cancer models and cell lines we find that tumors with RB1 loss are sensitive to BCL-XL inhibition. In parallel, drug screening demonstrates that disruption of nucleotide pools by agents including thymidylate synthase inhibitors sensitizes to BCL-XL inhibition, together indicating that replication stress increases dependence on BCL-XL.

View Article and Find Full Text PDF

Adeno-associated virus (AAV) has emerged as a leading platform for gene therapy, enabling the delivery of therapeutic DNA to target cells. However, the potential of AAV to deliver protein payloads has been unexplored. In this study, we engineered a protein carrier AAV (pcAAV) to package and deliver proteins by inserting binding domains on the interior capsid surface.

View Article and Find Full Text PDF

The present dataset belongs to a hydraulic burst pressure test of one Type IV vessel designed to burst at 200 bar. Before testing, the vessel was inspected by ultrasonic measurements. During burst pressure test, strain gauges at nine positions within the cylindrical part and on one dome of the tank recorded the deformation behavior of the vessel.

View Article and Find Full Text PDF

Identifying HIV-1 envelope (Env) traits associated with neutralization cross-reactivity is crucial for vaccine design. Variable loops 1 and 2 (V1V2), positioned at the Env trimer apex, are key regions linked to neutralization. We describe non-canonical cysteine (Cys) residues in V1 that are enriched in individuals with elite neutralization breadth.

View Article and Find Full Text PDF

For use in prevention and treatment, HIV-1 broadly neutralizing antibodies (bnAbs) have to overcome Env conformational heterogeneity of viral quasispecies and neutralize with constant high potency. Comparative analysis of neutralization data from the CATNAP database revealed a nuanced relationship between bnAb activity and Env conformational flexibility, with substantial epitope-specific variation of bnAb potency ranging from increased to decreased activity against open, neutralization-sensitive Env. To systematically investigate the impact of variability in Env conformation on bnAb potency we screened 126 JR-CSF point mutants for generalized neutralization sensitivity to weakly neutralizing antibodies (weak-nAbs) depending on trimer opening and plasma from people with chronic HIV-1 infection.

View Article and Find Full Text PDF

Associations of adiposity with risks of oesophageal squamous cell carcinoma (ESCC) and non-cardia stomach cancer, both prevalent in China, are still inconclusive. While adiposity is an established risk factor for colorectal cancer, the relevance of fat-free mass and early-adulthood adiposity remains to be explored. The prospective China Kadoorie Biobank study included 0.

View Article and Find Full Text PDF

High ionic conductivity poly(ionic liquid)s (PILs) are of growing interest for their thermal and electrochemical stability, processability, and potential in safe, flexible all-solid-state electrochemical devices. While various approaches to enhance the ionic conductivity are reported, the influence of cation substituents is rarely addressed. Moreover, some of the asymmetric anions recently developed for high-conductivity ionic liquids were never tested in PILs.

View Article and Find Full Text PDF
Article Synopsis
  • The study analyzes the occurrence, transmission risks, and immune status related to HIV indicator conditions (HIV-ICs) among treatment-naive individuals living with HIV in Germany from 1999 to 2023.
  • It includes data from 15,940 diagnoses and found that the majority of participants were male, with a notable incidence rate for syphilis (34 per 1,000 person-years) and high rates for other conditions linked to HIV.
  • The findings emphasize the need for targeted screening based on HIV-ICs to identify individuals with weakened immune systems, highlighting the importance of early antiretroviral therapy (ART) initiation.
View Article and Find Full Text PDF
Article Synopsis
  • The study focuses on improving early diagnosis of HIV among individuals with specific conditions known as indicator conditions (ICs), which are associated with higher rates of undiagnosed HIV infections.
  • Using data from over 513,000 German healthcare records from 2016 to 2021, the researchers analyzed the HIV prevalence among people with 26 selected ICs, finding notable rates especially in conditions like pneumocystosis and Kaposi's sarcoma.
  • The findings indicated significant gender and age disparities, revealing that while many ICs showed high HIV prevalence in younger and middle-aged adults, some female patients had lower prevalence rates in certain conditions compared to males.
View Article and Find Full Text PDF
Article Synopsis
  • Further research on identified regions could enhance our understanding of genetic risks for glioma.
  • The study indicates that sex might influence genetic susceptibility to glioma.
  • It emphasizes the need for future glioma studies to consider sex-specific factors in their analyses.*
View Article and Find Full Text PDF

The impact of ustekinumab (UST) on mucosal- and fistula healing and extraintestinal manifestations (EIM) in Crohn's disease (CD) were not fully elucidated in the registration trials. In this prospective, multicenter study (EudraCT number: 2017-005151-83) we evaluated the German label real-world-effectiveness of UST to achieve the primary endpoint of combined clinical and endoscopic response at week 52 and several secondary endpoints. Of 79 screened we enrolled 52 patients (female n = 28, bionaïve n = 13, biologic n = 39).

View Article and Find Full Text PDF

Background: Primary sclerosing cholangitis (PSC) is associated with biliary obstructions that can require endoscopic retrograde cholangiopancreatography (ERCP). While the beneficial effects of ERCP are well documented, follow-up interventional strategies are less defined, and their long-term impact is debated.

Methods: We evaluated the outcome of a scheduled program of ERCP-guided interventions that have been developed and implemented at our tertiary liver center for more than 20 years.

View Article and Find Full Text PDF

Higher levels of aneuploidy, characterized by imbalanced chromosome numbers, are associated with lethal progression in prostate cancer. However, how aneuploidy contributes to prostate cancer aggressiveness remains poorly understood. In this study, we assessed in patients which genes on chromosome 8q, one of the most frequently gained chromosome arms in prostate tumors, were most strongly associated with long-term risk of cancer progression to metastases and death from prostate cancer (lethal disease) in 403 patients and found the strongest candidate was cohesin subunit gene, , with an odds ratio of 3.

View Article and Find Full Text PDF
Article Synopsis
  • AAV (Adeno-Associated Virus) is primarily used to deliver DNA, but researchers are exploring its potential to also deliver proteins through engineered capsids called Protein Carrier AAV (pcAAV).
  • The study shows that inserting nanobodies into the AAV capsid allows for the packaging of various proteins, such as GFP and Cas9, and the efficiency of this process can be influenced by several design factors.
  • The engineered proteins maintain their activity after being packaged and can effectively enter cells, suggesting that pcAAV could be a valuable new method for protein delivery in therapeutics and research.
View Article and Find Full Text PDF
Article Synopsis
  • The study focuses on evaluating the effectiveness of PSMA-targeted radioguided surgery (PSMA-RGS) for treating patients with oligometastatic recurrence of prostate cancer, highlighting new regional treatment options.
  • Between 2018 and 2022, 50 out of 53 patients who underwent PSMA-RGS after initial radical prostatectomy were analyzed, with successful removal of pathologically positive lesions in all cases.
  • Although PSMA-RGS showed promise, only 42% of patients remained free from biochemical recurrence during follow-up, indicating the need for further research to better select candidates for this treatment.
View Article and Find Full Text PDF

Human immunodeficiency virus pre-exposure prophylaxis (PrEP) is considered as an effective protection against a human immunodeficiency virus (HIV) infection. However, it is still unclear, how PrEP use is associated with the incidence of sexually transmitted infections (STI) other than HIV. PrEP became reimbursable in Germany from September 1, 2019 for persons with statutory health insurance (SHI).

View Article and Find Full Text PDF

Due to its amphiphilic structure, lignin has the potential to stabilize emulsions via adsorption at the oil/water interface. By converting lignin into nanoparticles, we can significantly enhance its emulsion-stabilizing capabilities through a Pickering-type stabilization mechanism. Two essential elements may be modified to fine-tune emulsion stability: the size of the lignin nanoparticles (LNPs) and the physicochemical nature of the lipid phase.

View Article and Find Full Text PDF

Context: Girls' high school volleyball is a popular sport with a high rate of overuse injuries and sport specialization. Health professionals perceive that high school athletes are reluctant to follow treatment plans involving sport activity reduction. This study's purpose was to describe high school girls' volleyball athletes' self-reported shoulder and knee pain, the likelihood of adhering to medical advice, and the association of factors that influence the likelihood of reporting overuse injuries and sport specialization.

View Article and Find Full Text PDF

Adeno-associated virus (AAV) has been remarkably successful in the clinic, but its broad tropism is a practical limitation of precision gene therapy. A promising path to engineer AAV tropism is the addition of binding domains to the AAV capsid that recognize cell surface markers present on a targeted cell type. We have recently identified two previously unexplored capsid regions near the 2/5-fold wall and 5-fold pore of the AAV capsid that are amenable to insertion of larger protein domains, including nanobodies.

View Article and Find Full Text PDF

A cationic poly(ionic liquid) (PIL) with pendent butyl imidazolium cations and free bis(trifluoromethylsulfonyl)imide (TFSI) anions and an anionic PIL with pendent TFSI anions and free 1-butyl-3-methylimidazolium cations are synthesized by postpolymerization chemical modification and reversible addition-fragmentation chain-transfer radical copolymerization, respectively. Upon mixing solutions of these two PILs in acetone with stoichiometric amounts of ion pairs, ionic exchanges induce coacervation and, after solvent evaporation, lead to the formation of a dynamic ion gel (DIG) and the concomitant release of free [1-methyl-3-butyl imidazolium]TFSI ionic liquid (IL). A comparison of thermal (), ion conducting (σ), and viscoelastic (elastic moduli (')) properties for DIGs and their parent polyelectrolytes, as well as extracted and IL-doped DIGs, demonstrates the formation of ionic cross-links and the ability to easily produce polymer electrolytes with enhanced ionic conductivity (σ up to 4.

View Article and Find Full Text PDF