Publications by authors named "Son A"

Retained coronary wires, stents, and catheters are rare complications of percutaneous coronary interventions. Descriptions of operative techniques for removal are scarce. We present a series of retained coronary material and various operative management techniques for removal.

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A 24-year-old man with Marfan syndrome and heart failure from hypertrophic cardiomyopathy was referred to our institution in cardiogenic shock for advanced therapies. He was supported by a femoral intra-aortic balloon pump, then bridged to orthotopic heart transplantation. This is a report of an orthotopic heart transplantation in a patient with both Marfan syndrome and heart failure from hypertrophic cardiomyopathy.

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Liposarcomas, the most common soft tissue tumors, occur predominantly in the lower limbs and retroperitoneum. Primary mediastinal liposarcomas are rare and account for <1% of mediastinal masses. We report a case of a large primary mediastinal liposarcoma invading the right ventricular outflow tract, pulmonary artery, and aortic adventitia that was successfully resected.

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sp. SCR221107 was isolated from the rumen fluid of healthy male Holstein dairy cows from a research farm at Suncheon, Jeollanam-do, Korea. sp.

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Article Synopsis
  • * Researchers analyzed data from 7488 breeding pigs and discovered specific SNP markers linked to reproductive traits; different genes were found in each breed that impact various biological functions.
  • * The findings offer valuable insights for enhancing breeding strategies aimed at improving pig reproductive efficiency, which could lead to economic gains in the industry.
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It is imperative to comprehend the mechanisms that underlie drug toxicity in order to enhance the efficacy and safety of novel therapeutic agents. The capacity to identify molecular pathways that contribute to drug-induced toxicity has been significantly enhanced by recent developments in omics technologies, such as transcriptomics, proteomics, and metabolomics. This has enabled the early identification of potential adverse effects.

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Article Synopsis
  • The study examined how heat stress affects rumen fermentation, blood parameters, and microbial communities in Holstein dairy cows during mid-lactation in Korea.
  • Samples were taken during the heat stress period and a recovery period, revealing significant differences in milk yield and blood total protein levels, while certain measures remained unchanged.
  • Key findings indicated shifts in microbial diversity and the dominance of specific bacterial groups under heat stress conditions, highlighting the impact of temperature on dairy cow health and production.
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Mass spectrometry-based methods can provide a global expression profile and structural readout of proteins in complex systems. Preserving the in vivo conformation of proteins in their innate state is challenging during proteomic experiments. Here, we introduce a whole animal in vivo protein footprinting method using perfusion of reagents to add dimethyl labels to exposed lysine residues on intact proteins which provides information about protein conformation.

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The field of computational protein engineering has been transformed by recent advancements in machine learning, artificial intelligence, and molecular modeling, enabling the design of proteins with unprecedented precision and functionality. Computational methods now play a crucial role in enhancing the stability, activity, and specificity of proteins for diverse applications in biotechnology and medicine. Techniques such as deep learning, reinforcement learning, and transfer learning have dramatically improved protein structure prediction, optimization of binding affinities, and enzyme design.

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Background: Patients can develop de novo malignancies following orthotopic heart transplantation. However, vascular tumors are not commonly described in this population.

Case Presentation: We present a 69-year-old female with a history of orthotopic heart transplantation for chemotherapy-induced cardiomyopathy who developed an incidental pulmonary artery mass six years after her transplantation.

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Mass spectrometry (MS) has revolutionized clinical chemistry, offering unparalleled capabilities for biomolecule analysis. This review explores the growing significance of mass spectrometry (MS), particularly when coupled with liquid chromatography (LC), in identifying disease biomarkers and quantifying biomolecules for diagnostic and prognostic purposes. The unique advantages of MS in accurately identifying and quantifying diverse molecules have positioned it as a cornerstone in personalized-medicine advancement.

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Article Synopsis
  • Therapeutic protein engineering is transforming medicine by creating highly targeted treatments for various diseases, focusing on areas like antibody engineering and enzyme therapies.
  • Recent advancements combine computational methods, such as structure-based design and machine learning, with experimental techniques like directed evolution to improve protein therapeutics.
  • Despite significant progress, challenges like predicting in vivo behavior and manufacturing remain, necessitating further integration of computational and experimental approaches for future breakthroughs in treatment development.
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  • - Recent advancements in experimental techniques and computational methods have transformed our understanding of protein dynamics, highlighting motions from tiny atomic vibrations to significant structural changes.
  • - Tools like nuclear magnetic resonance spectroscopy and molecular dynamics simulations allow for detailed observation of protein movements, while machine learning innovations like AlphaFold2 improve predictions of protein structures and dynamics.
  • - Understanding these dynamics is crucial for aspects such as allosteric regulation, enzyme function, and drug design, representing a major shift in fields like structural biology and biocatalyst development.
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The purpose of this study was to estimate the homozygosity distribution and compute genomic and conventional inbreeding coefficients in three genetically diverse pig breed populations. The genomic and pedigree data of Duroc (1586), Landrace (2256), and Yorkshire (3646) were analyzed. We estimated and compared various genomic and pedigree inbreeding coefficients using different models and approaches.

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Background: Low back pain (LBP) is a significant source of disability and decreased quality of life. The Self-Natural Posture Exercise (SNPE) intervention can be used effectively in many cases, but feasibility and impact has not been fully explored.

Objective: The current study explores the feasibility and efficacy of face-to-face (FtF) and virtual (Vir) SNPE programs on chronic low back pain.

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Objective: The present study aimed to evaluate the accuracy of previous equations for estimating gross energy (GE) in feed ingredients and to develop the novel equations.

Methods: A total of 2,279 ingredient samples consisted of barley (n = 58), corn (n = 319), corn distillers dried grains with solubles (n = 13), corn gluten feed (n = 583), copra expellers (n = 156), copra meal (n = 234), cottonseed meal (n = 12), palm kernel expellers (n = 504), rapeseed meal (n = 114), soybean meal (n = 138), wheat (n = 70), and wheat bran (n = 78) were analyzed for dry matter (DM), crude protein (CP), ether extract (EE), crude fiber, ash, and GE. The 2,279 ingredient samples were used for evaluating the previous equations and developing novel equations.

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Objective: The present study aimed to study effects of a chronic feeding of deoxynivalenol (DON) on growth performance, organ weight, organ DON accumulation, and blood parameters in pigs.

Methods: Forty-eight castrated male pigs with a body weight of 10.4 kg (standard deviation = 1.

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The interwoven relationship between gut microbiota and the epigenetic landscape constitutes a pivotal axis in understanding human health and disease. Governed by a myriad of dietary, genetic, and environmental influences, the gut microbiota orchestrates a sophisticated metabolic interplay, shaping nutrient utilization, immune responses, and defenses against pathogens. Recent strides in genomics and metabolomics have shed light on the intricate connections between these microbial influencers and the host's physiological dynamics, presenting a dynamic panorama across diverse disease spectra.

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The electron-donating and electron-accepting properties of N-heterocyclic carbene (NHC) ligands play a pivotal role in governing their interactions with transition metals, thereby influencing the selectivity and reactivity in catalytic processes. Herein, we report the synthesis of Pd/NHC and Ni/NHC complexes, wherein the electronic parameters of the NHC ligands were systematically varied. By performing a series of controlled structure modifications, we elucidated the influence of the σ-donor and π-acceptor properties of NHC ligands on interactions with the transition metals Pd and Ni and, consequently, the catalytic behavior of Pd and Ni complexes.

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We developed a fluorescence aptasensor (hereafter 'SG-aptasensor') using SYBR Green I, a newly truncated 20-mer aptamer, and probe DNA to detect dibutyl phthalate (DBP). The detection range of DBP was 0.1-100 ng L with 0.

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Interleukin-9 (IL-9) is a multifunctional cytokine with roles in a broad cross-section of human diseases. Like many cytokines, IL-9 is transcriptionally regulated by a group of noncoding regulatory elements (REs) surrounding the IL9 gene. These REs modulate IL-9 transcription by forming 3D loops that recruit transcriptional machinery.

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A multi-target aptamer assay was developed as a phthalic acid ester (PAE) panel to screen selected PAEs in plastic leachate samples. The panel comprises 13 PAEs (PAE-13), namely dimethyl phthalate, diethyl phthalate, di-n-butyl phthalate, di-n-hexyl phthalate, diisobutyl phthalate, diisononyl phthalate, diisodecyl phthalate, mono-2-ethylhexyl phthalate, di-2-ethylhexyl phthalate, diphenyl phthalate, butyl benzyl phthalate, dicyclohexyl phthalate, and phthalic acid. Herein, we proposed an aptamer assay using a newly truncated aptamer (20-mer) and the 7-aminoactinomycin D fluorophore, which selectively binds to guanine in single-stranded DNA, resulting in increased fluorescence intensity.

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Prefiltration before chromatographic analysis is critical in the monitoring of environmental micropollutants (MPs). However, in an aqueous matrix, such monitoring often leads to out-of-specification results owing to the loss of MPs on syringe filters. Therefore, this study investigated the loss of seventy MPs on eight different syringe filters by employing Random Forest, a machine learning algorithm.

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Article Synopsis
  • - The introduction highlights the importance of disease screening to prevent symptoms, but acknowledges challenges like diagnostic errors, patient discomfort, and complications from concurrent screenings.
  • - The research proposes using Selected Reaction Monitoring (SRM) assays for multi-disease screening, which could reduce demands on healthcare systems, despite facing obstacles like detecting low-abundance proteins and model overfitting.
  • - The expert opinion suggests that advancements in mass spectrometry in clinical labs are poised to enhance diagnostic accuracy and efficiency, making it a crucial tool for precise medical testing.
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