Evaluation of Dynamic Light Scattering as an Effective Quality Control Method for Aggregates in Radiolabeled Antibodies.

Radiolabeled antibodies are promising for targeted cancer imaging, but their structural integrity may suffer during bioconjugation and radiolabeling, leading to undetected aggregation. This study evaluates dynamic light scattering (DLS) as a complementary method to size-exclusion high-performance liquid chromatography (SEC-HPLC) for detecting aggregation in radiolabeled antibodies. Trastuzumab was conjugated with a NOTA bifunctional chelator at various ratios, radiolabeled with [Cu]CuCl, and analyzed by using DLS and SEC-HPLC before and after purification.

Establishment of a chronic biliary disease mouse model with cholecystoduodenal anastomosis for intestinal microbiome preservation.

Background: Chronic biliary disease, including cholangitis and cholecystitis, is attributed to ascending infection by intestinal bacteria. Development of a mouse model for bile duct inflammation is imperative for the advancement of novel therapeutic approaches. Current models fail to replicate the harmful bacterial influx to the biliary tract observed in humans and spread of inflammation to the liver.

Vasectomy Discussions in South Korea: Central Themes and Public Interest on Question-and-Answer Social Platforms.

Purpose: The purpose of this paper is to explore public perceptions and key issues related to vasectomy in South Korea. In particular, this paper seeks to analyze how vasectomy is discussed on question-and-answer (Q&A) social platforms including NAVER Jisik iN (knowledge exchange service between NAVER users) and to identify topics that capture public interest.

Methods: In this study, based on data collected on NAVER Jisik iN from July 2019 to July 2024 with the keyword 'vasectomy,' this paper performs a co-occurrence matrix analysis on the Q&A data to identify key terms related to the topic.

Lower Urinary Tract Symptoms in Mental Illness: A Topic Modeling Approach to Online Mental Health Communities.

Purpose: This study aimed to provide foundational data to enhance integrated interventions by gaining an in-depth understanding of the perceptions of patients experiencing both mental illness and lower urinary tract symptoms (LUTS), which carry a high risk of comorbidity and potential mutual exacerbation.

Methods: Data were collected from a large online mental health community in South Korea, active among individuals with mental illness and their families (as of October 21, 2024: 113,060 members and 368,352 posts). Posts containing the keywords 'pee' or 'urine' (a total of 986 posts) were analyzed including their titles, content, and categories.

Public Views on Managing Benign Prostatic Hyperplasia-Related Voiding Dysfunction: Potential Applications of Digital Therapeutic.

Purpose: This study aims to explore the potential of digital therapeutics in managing voiding dysfunction associated with benign prostatic hyperplasia (BPH). To achieve this, we collected and analyzed news and community data from major Korean platforms to assess the trends in media and community discussions and examine how digital therapeutics can contribute to personalized care and support self-management for patients with BPH-related voiding dysfunction.

Methods: Data was collected over a 3-year period from October 2021 to September 2024 using the keywords 'prostate,' 'urinary,' and 'treatment.

Exploring Large Language Models and the Metaverse for Urologic Applications: Potential, Challenges, and the Path Forward.

The metaverse, a 3-dimensional digital platform that enables users to interact and engage in realistic virtual activities beyond time and space limitations, has garnered significant investment across industries, particularly in healthcare. In the medical field, the metaverse shows promise as a digital therapeutic platform to enhance interaction between medical professionals and patients. Concurrently, generative artificial intelligence, especially large language models, is being integrated into healthcare for applications in data analysis, image recognition, and natural language processing.

Clinical significance of MRI-measured olfactory bulb height as an imaging biomarker of idiopathic Parkinson's disease.

Objectives: This study aimed to determine whether the olfactory bulb height (OBH) measured using magnetic resonance imaging (MRI) has clinical utility as an imaging biomarker in the evaluation of patients with idiopathic Parkinson's disease (iPD) through its correlation with movement impairment.

Methods: This retrospective study included cognitively intact patients with suspected parkinsonism. All participants underwent T2-weighted imaging to measure OBH.

Diastereoselective Hydrodifluoromethylation of Alkenyl -Heterocycles via Photocatalytic Radical-Polar Crossover.

A diastereoselective hydrodifluoromethylation of -heteroaryl alkenes was successfully established. This method was applicable to an array of -heteroaryl substrates with both cyclic and acyclic alkenes while displaying tolerance to a variety of functional groups. The conditions were also expanded to obtain hydrotrifluoromethylated products with similar results.

Public Perceptions of Enuresis: Insights From Online Communities in South Korea and the United States.

Purpose: To establish a foundation for raising awareness and disseminating accurate information about enuresis-one of the most challenging conditions to discuss openly-this paper examines public perceptions of enuresis.

Methods: This paper collected title and text data from posts related to enuresis on the top popular online platforms such Naver Cafe in South Korea and Reddit in the United States (US). The data along with the thematic subcommunities where the posts were uploaded, was analyzed and visualized using word cloud, Latent Dirichlet Allocation (LDA) topic modeling, and pyLDAvis.

Serious Games as a Therapeutic Tool in Pediatric Urology: A Review of Current Applications and Future Directions.

This paper examines the use of serious games that integrate engaging gameplay with educational and therapeutic benefits with a particular focus on their application in urology. The study reviews both domestic and international cases to evaluate the current practices and implications of these digital therapies. While serious games have been widely utilized in the treatment of pediatric cancer and psychiatric disorders-areas that require long-term care and management-their application in urology, in particular pediatric urology, has been limited.

An online supportive music and imagery intervention to promote ICU nurses' stress management: Preliminary study.

Nurses in intensive care units are subjected to high levels of work-related stress and must cope with psychological distress. This preliminary study explored the effects of an online supportive music and imagery intervention on these nurses' perceived stress, psychological distress, and sleep quality. A prospective pre-post design was employed to investigate the effectiveness of online supportive music and imagery interventions.

Doctor shopping trend of patients before undergoing rotator cuff repair in Korea: a multicenter study.

Background: This study aims to investigate the trend of doctor shopping among patients with rotator cuff tear (RCT) before undergoing surgery and to examine the relevance of these findings to the public.

Methods: A survey was conducted of 326 patients from 10 hospitals (male, 176; female, 150) who underwent arthroscopic rotator cuff repair (ARCR) for symptomatic RCT between September 2019 and February 2020. A questionnaire was used to obtain data regarding the type of medical care service, medical institutions visited before surgery, number of treatments received, and cost of treatment.

Cesium lead bromide perovskite nanocrystals synthesized supersaturated recrystallization at room temperature: comparison of one-step and two-step processes.

Over more than a decade, lead halide perovskites (LHPs) have been popular as a next-generation semiconductor for optoelectronics. Later, all-inorganic CsPbX (X = Cl, Br, and I) nanocrystals (NCs) were synthesized supersaturated recrystallization (SR) at room temperature (RT). However, compared to the hot injection (HI) method, the formation mechanism of NCs SR-RT has not been well studied.

Cancer-wide in silico analyses using differentially expressed genes demonstrate the functions and clinical relevance of JAG, DLL, and NOTCH.

Notch ligands [jagged (JAG) and, delta-like (DLL) families] and receptors [NOTCH family] are key regulators of Notch signaling. NOTCH signaling contributes to vascular development, tissue homeostasis, angiogenesis, and cancer progression. To elucidate the universal functions of the JAG, DLL, and NOTCH families and their connections with various biological functions, we examined 15 types of cancer using The Cancer Genome Atlas clinical database.

A Classical Epithelial State Drives Acute Resistance to KRAS Inhibition in Pancreatic Cancer.

Intratumoral heterogeneity in pancreatic ductal adenocarcinoma (PDAC) is characterized by a balance between basal and classical epithelial cancer cell states, with basal dominance associating with chemoresistance and a dismal prognosis. Targeting oncogenic KRAS, the primary driver of pancreatic cancer, shows early promise in clinical trials, but efficacy is limited by acquired resistance. Using genetically engineered mouse models and patient-derived xenografts, we find that basal PDAC cells are highly sensitive to KRAS inhibitors.

Improved differentiation of cavernous malformation and acute intraparenchymal hemorrhage on CT using an AI algorithm.

This study aimed to evaluate the utility of an artificial intelligence (AI) algorithm in differentiating between cerebral cavernous malformation (CCM) and acute intraparenchymal hemorrhage (AIH) on brain computed tomography (CT). A retrospective, multireader, randomized study was conducted to validate the performance of an AI algorithm in differentiating AIH from CCM on brain CT. CT images of CM and AIH (< 3 cm) were identified from the database.

Efficient Radiolabeling of Proteins and Antibodies via Maleamate-Cysteine Bioconjugation.

The study introduces a novel maleamate-based prosthetic group specifically designed for efficient, site-specific radioiodination of biomolecules that contain or are modified with cysteine residues. This strategy is a compelling alternative to the conventional maleimide-based approach, demonstrating outstanding attributes such as high radiochemical yield, rapid reaction kinetics, applicability in aqueous media at neutral pH, and exceptional stability under a competitive environment.

From molecules to medicine: thiol selective bioconjugation in synthesis of diagnostic and therapeutic radiopharmaceuticals.

Radiolabeling of biomolecules and cells with radiolabeled prosthetic groups has significant implications for nuclear medicine, imaging, and radiotherapy. Achieving site-specific and controlled incorporation of radiolabeled prostheses under mild reaction conditions is crucial for minimizing the impact on the bioactivity of the radiolabeled compounds. The targeting of natural and abundant amino acids during radiolabeling of biomolecules often results in nonspecific and uncontrolled modifications.

Cu-Labeled Boron-Containing Cyclic RGD Peptides for BNCT and PET Imaging.

The burgeoning interest in developing boron neutron capture therapy (BNCT) tracers and their accompanying diagnostics for the treatment of recalcitrant tumors has prompted this investigation. Our study aims to devise a tumor treatment strategy utilizing BNCT to target the αβ integrin. To this end, we propose a pioneering boron-infused cyclic Arg-Gly-Asp (RGD) peptide, cRGD(d-BPA)K, designed as an efficacious BNCT tracer.

Bioaccumulation and tracking of radiolabeled 4-nonylphenol in mice.

4-Nonylphenol (4NP) is concerning due to its growing presence and endocrine-disrupting nature, raising concerns about its impact on health. In this study I-labeled 4NP was synthesized for tracing. Positron emission tomography imaging and biodistribution studies showed significant accumulation in various tissues after oral or intraperitoneal administration, emphasizing its intricate distribution and potential long-term effects, crucial for future risk assessments.

Enhanced Expression of Glycolytic Enzymes and Succinate Dehydrogenase Complex Flavoprotein Subunit A by Mesothelin Promotes Glycolysis and Mitochondrial Respiration in Myeloblasts of Acute Myeloid Leukemia.

Acute myeloid leukemia (AML) is an aggressive malignancy characterized by rapid growth and uncontrolled proliferation of undifferentiated myeloid cells. Metabolic reprogramming is commonly observed in the bone marrow of AML patients, as leukemia cells require increased ATP supply to support disease progression. In this study, we examined the potential role of mesothelin as a metabolic modulator in myeloid cells in AML.

Bright diffusion sign: A sensitive and specific radiologic biomarker for multinodular and vacuolating neuronal tumor.

Background And Purpose: Accurate differentiation between multinodular and vacuolating neuronal tumor (MVNT) and dysembryoplastic neuroepithelial tumor (DNET) is important for treatment decision-making. We aimed to develop an accurate radiologic diagnostic model for differentiating MVNT from DNET using T2WI and diffusion-weighted imaging (DWI).

Materials And Methods: A total of 56 patients (mean age, 47.

Jagged1 intracellular domain/SMAD3 complex transcriptionally regulates TWIST1 to drive glioma invasion.

Jagged1 (JAG1) is a Notch ligand that correlates with tumor progression. Not limited to its function as a ligand, JAG1 can be cleaved, and its intracellular domain translocates to the nucleus, where it functions as a transcriptional cofactor. Previously, we showed that JAG1 intracellular domain (JICD1) forms a protein complex with DDX17/SMAD3/TGIF2.

MXene/AgNW composite material for selective and efficient removal of radioactive cesium and iodine from water.

Toxic fission products, such as cesium (Cs) and iodine (I) are of great concern because of their long half-lives and high solubility in water. The simultaneous removal of Cs and I using a single adsorbent is an area of increasing interest. In this study, MXene/silver nanowire (AgNW) composite was synthesized through physical mixing and employed for simultaneous removal of iodide (I) and cesium (Cs) ions from contaminated water.