Linking Research Data with Physically Preserved Research Materials in Chemistry.

Results of scientific work in chemistry can usually be obtained in the form of materials and data. A big step towards transparency and reproducibility of the scientific work can be gained if scientists publish their data in research data repositories in a FAIR manner. Nevertheless, in order to make chemistry a sustainable discipline, obtaining FAIR data is insufficient and a comprehensive concept that includes preservation of materials is needed.

Identification of novel triazolylquinoxaline-based metal complexes supported by experimental and virtual screenings.

The formation of novel complexes from so far non-investigated ligands and different metal centers is important for the development of new functional materials such as (photo)catalysts or biologically active compounds. Still, promising strategies to quickly and systematically investigate the complexation behavior of selected ligands are rare. We developed an NMR-based screening approach to monitor changes within reaction mixtures containing metals and ligands on a small scale a simple but reliable protocol.

Role of FOXO3a in LPS-induced inflammatory conditions in human dental pulp cells.

Objectives: We investigated the involvement of FOXO3a in lipopolysaccharide (LPS)-induced inflammation in primary human dental pulp cells (HDPCs).

Methods: HDPCs that were isolated from donors undergoing tooth extraction for orthodontic purposes were cultured with or without 1 μg/mL LPS at various intervals. The FOXO3a localization in the HDPCs was verified using immunofluorescence.

Analysis of enzyme kinetics of fungal methionine synthases in an optimized colorimetric microscale assay for measuring cobalamin-independent methionine synthase activity.

Aspergillus spp. and Rhizopus spp., used in solid-state plant food fermentations, encode cobalamin-independent methionine synthase activity (MetE, EC 2.

Spatiotemporal Mapping of Ultrafine Particle Fluxes in an Office HVAC System with a Diffusion Charger Sensor Array.

Commercial HVAC systems intended to mitigate indoor air pollution are operated based on standards that exclude aerosols with smaller diameters, such as ultrafine particles (UFPs, D ≤ 100 nm), which dominate a large proportion of indoor and outdoor number-based particle size distributions. UFPs generated from occupant activities or infiltrating from the outdoors can be recirculated and accumulate indoors when they are not successfully filtered by an air handling unit. Monitoring UFPs in real occupied environments is vital to understanding these source and mitigation dynamics, but capturing their rapid transience across multiple locations can be challenging due to high-cost instrumentation.

Subjective and objective health according to the characteristics of older adults: Using data from a national survey of older Koreans.

As society rapidly ages, older adults are becoming an important national issue. Health is a multidimensional concept and both objective and subjective health must be managed. This study investigated factors that influence the subjective and objective health of older adults.

Tuning electronic structure and carrier transport properties through crystal orientation control in two-dimensional Dion-Jacobson phase perovskites.

Two-dimensional halide perovskites are attracting attention due to their structural diversity, improved stability, and enhanced quantum efficiency compared to their three-dimensional counterparts. In particular, Dion-Jacobson (DJ) phase perovskites exhibit superior structural stability compared to Ruddlesden-Popper phase perovskites. The inherent quantum well structure of layered perovskites leads to highly anisotropic charge transport and optical properties.

Release of Bisphenol A and Other Volatile Chemicals from New Epoxy Drinking Water Pipe Liners: The Role of Manufacturing Conditions.

Cured-in-place-pipe (CIPP) technology has begun to be adopted for drinking water pipe repairs, and limited information exists about its drinking water quality impacts. CIPP involves the manufacture of a new plastic pipe inside a buried damaged pipe. In this study, the chemical composition of the raw materials and CIPP water quality impacts were examined.

The Aβ:Aβ ratio modulates aggregation in beta-amyloid oligomers and drives metabolic changes and cellular dysfunction.

The pathophysiological role of Aβ oligomers in the onset of Alzheimer's disease (AD) is heavily disputed, pivoting research toward investigating mixed oligomers composed of Aβ and Aβ, which is more abundant but less aggregation-prone. This study investigates Aβ:Aβ oligomers in different ratios, examining their adverse effects on endothelial cells, neurons, astroglia, and microglia, as well as in a human blood-brain barrier (BBB) model. Combining label-free Raman microscopy with complementary imaging techniques and biochemical assays, we show the prominent impact of Aβ on Aβ fibrillation, suggesting an inhibitory effect on aggregation.

Vertebral osteomyelitis in patients with an underlying malignancy or chronic kidney disease - who is at higher risk for adverse outcome?

Purpose: Patients with vertebral osteomyelitis (VO) and comorbidities, notably chronic kidney disease (CKD), are at risk of early mortality. The aim of this study was to compare characteristics and outcomes of VO patients with an underlying malignancy (ONCO) to VO patients with CKD and VO patients without comorbidities (CONTROL).

Methods: We performed a retrospective analysis of data which was prospectively collected between 2008 and 2020.

CSearch: chemical space search via virtual synthesis and global optimization.

The two key components of computational molecular design are virtually generating molecules and predicting the properties of these generated molecules. This study focuses on an effective method for molecular generation through virtual synthesis and global optimization of a given objective function. Using a pre-trained graph neural network (GNN) objective function to approximate the docking energies of compounds for four target receptors, we generated highly optimized compounds with 300-400 times less computational effort compared to virtual compound library screening.

Potent AMA1-specific human monoclonal antibody against Plasmodium vivax Pre-erythrocytic and Blood Stages.

New therapeutics are necessary for preventing Plasmodium vivax malaria due to easy transmissibility and dormancy in the liver that increases the clinical burden due to recurrent relapse. In this manuscript we characterize 12 Pv Apical Membrane Antigen 1 (PvAMA1) specific human monoclonal antibodies from Peripheral Blood Mononuclear Cells of a Pv-exposed individual. PvAMA1 is essential for sporozoite and merozoite invasion, making it a unique therapeutic target.

Developmental Characteristics of High-Risk Infants According to the Bayley Scales of Infant and Toddler Development-Third Edition.

Background: The present study aimed to determine the developmental characteristics of high-risk infants with birth and perinatal risk factors according to gestational age using the Bayley Scales of Infant and Toddler Development-Third Edition (Bayley-III) and to assess the clinical utility of the scale.

Methods: This study included 100 high-risk infants < 12 months' corrected age who presented to a hospital in Korea. Developmental levels of cognitive, language and motor scales were confirmed using Bayley-III and analysed by dividing the infants according to gestational age as follows: high-risk full-term, moderate-to-late preterm and very preterm.

A post-hoc analysis of risk factors for poor quality of life after surgical treatment of spondylodiscitis.

Patient-reported outcome measures for quality of life (QoL) like the Oswestry-Disability-Index (ODI) are useful for a quick, comprehensive and comparable evaluation of spondylodiscitis treatment. While it is known that even after successful surgical treatment, the QoL of spondylodiscitis patients remains below that of the general population, risk factors for a poor outcome have not been described so far. We did a retrospective post-hoc analysis of 130 surgically treated spondylodiscitis patients from 2008 to 2022.

Mapping cellular stress and lipid dysregulation in Alzheimer-related progressive neurodegeneration using label-free Raman microscopy.

Aβ plaques are a main feature of Alzheimer's disease, and pathological alterations especially in their microenvironment have recently come into focus. However, a holistic imaging approach unveiling these changes and their biochemical nature is still lacking. In this context, we leverage confocal Raman microscopy as unbiased tool for non-destructive, label-free differentiation of progressive biomolecular changes in the Aβ plaque microenvironment in brain tissue of a murine model of cerebral amyloidosis.

Physiological and perceptual demands of singles and doubles beach tennis in women of different competition levels.

Purpose: To analyze and compare the physiological responses of women during singles and doubles beach tennis sessions.

Methods: In this crossover trial, twenty-two women with previous participation in amateur beach tennis tournaments randomly performed two experimental sessions: singles and doubles beach tennis. The routine for both sessions consisted of 10-min of seated rest, followed by 45-min of beach tennis and 30-min of post-exercise recovery.

Development of the Diagnostic Matrix of the Seoul Cognitive Status Test, Compared to Traditional Paper-and-Pencil Neuropsychological Tests.

Background And Purpose: We aimed to develop the diagnostic matrix of the Seoul Cognitive Status Test (SCST) and compare its performance with traditional paper-and-pencil neuropsychological tests, including the Seoul Neuropsychological Screening Battery-II (SNSB-II) and the Korean version of the Consortium to Establish a Registry for Alzheimer's Disease (CERAD-K).

Methods: We recruited 197 participants from the head-to-head SCST-SNSB cohort, and 204 participants from the head-to-head SCST-CERAD cohort. They underwent either SNSB-II or CERAD-K, in addition to SCST.

New diagnostic techniques for diagnosing facture-related infections.

The diagnosis of fracture-related infections (FRI) is challenging and requires interdisciplinary efforts. Many diagnostic approaches are based on the algorithms established for prosthetic joint infections (PJI). Data specific to FRI are limited.

Relationship Between Oral Motor and Cognitive Function in Community-Dwelling Korean Older Adults: A Cross-Sectional, Observational Study.

: The present study analyzed the relationship between oral motor and cognitive functions in community-dwelling older Korean adults. Study participants included 113 community-dwelling older adults with a mean age of 73.84 years.

Rapid Nucleation and Growth of Indoor Atmospheric Nanocluster Aerosol during the Use of Scented Volatile Chemical Products in Residential Buildings.

Scented volatile chemical products (sVCPs) are frequently used indoors. We conducted field measurements in a residential building to investigate new particle formation (NPF) from sVCP emissions. State-of-the-art instrumentation was used for real-time monitoring of indoor atmospheric nanocluster aerosol (NCA; 1-3 nm particles) size distributions and terpene mixing ratios.

Predicting nanocarrier permeation across the human intestine : model matters.

For clinical translation of oral nanocarriers, simulation of the intestinal microenvironment during testing is crucial to evaluate interactions with the intestinal mucosa. However, studies are often conducted using simplistic cell culture models, overlooking key physiological factors, and potentially leading to an overestimation of nanocarrier permeation. In this study, we systematically investigate different tissue models of the human intestine under static cultivation and dynamic flow conditions and analyze the impact of altered tissue characteristics on nanocarrier permeation.