Publications by authors named "S-J Kim"

The cerebellum is activated by noxious stimuli and pathological pain but its role in noxious information processing remains unknown. Here, we show that in mice, cutaneous noxious electrical stimuli induced noradrenaline (NA) release from locus coeruleus (LC) terminals in the cerebellar cortex. Bergmann glia (BG) accumulated these LC-NA signals by increasing intracellular calcium in an integrative manner ('flares').

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The objective of this study was to evaluate whether supplementation with probiotics over a 2-week period stabilizes the gut microbiota in dogs following prolonged cefovecin treatment. A significant number of clinical veterinarians prescribe oral probiotics to dogs in conjunction with systemic antibiotics with the intention of protecting against gut dysbiosis. The effects of antibiotics and probiotics in dogs have not been extensively studied, however, and the optimal treatment for gut dysbiosis remains uncertain.

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Immune checkpoint blockade (ICB) has become a standard anti-cancer treatment, offering durable clinical benefits. However, the limited response rate of ICB necessitates biomarkers to predict and modulate the efficacy of the therapy. The gut microbiome's influence on ICB efficacy is of particular interest due to its modifiability through various interventions.

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Xerosis, characterized by dry, rough skin, causes discomfort and aesthetic concerns, necessitating effective treatment. Traditional treatments often show limited efficacy, prompting the need for innovative therapies. This study highlights the efficacy of microbiome therapeutic LP51, derived from a healthy vaginal microbiome, in improving xerosis.

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Background Application of multimodal large language models (LLMs) with both textual and visual capabilities has been steadily increasing, but their ability to interpret radiologic images is still doubted. Purpose To evaluate the accuracy of LLMs and compare it with that of human readers with varying levels of experience and to assess the factors affecting LLM accuracy in answering Image Challenge cases. Materials and Methods Radiologic images of cases from October 13, 2005, to April 18, 2024, were retrospectively reviewed.

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  • Atrial fibrillation (AF) often recurs after catheter ablation, and the study investigates how changes in the pulmonary vein (PV) structure, highlighted by artificial intelligence (AI), relate to this recurrence.* -
  • Two AI models were used to analyze CT images from 809 patients, examining features of primary and secondary PV branches to determine their link to AF recurrence post-ablation.* -
  • The findings suggest that morphological features of primary PV branches have a significant association with AF recurrence, indicating potential pathways for improving patient outcomes after ablation.*
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  • Genetic vascular disorders, particularly multisystemic smooth muscle dysfunction syndrome (MSMDS), result from mutations in the alpha actin isotype 2 gene and can lead to severe health issues such as stroke and early childhood death.
  • The research focused on correcting the common R179H mutation using a specially engineered CRISPR-Cas9 enzyme designed for high accuracy, decreasing unintended edits during the gene correction process.
  • By utilizing a murine model that mimics human MSMDS symptoms, the study demonstrated that delivering the customized editing tool significantly improved survival and health outcomes in affected mice, indicating potential for lasting treatments in humans.
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The genetic clock is a well-established tool used in evolutionary biology for estimating divergence times between species, individuals, or cells based on DNA sequence changes. Yu et al. have revisited the clock to make it applicable to clonal multicellular organisms that expand through asexual reproduction mechanisms, enabling more comprehensive evolutionary tracking.

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Background And Objectives: Parkinson disease (PD) shows degeneration of dopaminergic neurons in the substantia nigra and characteristic changes in brain metabolism. However, how they correlated and affect motor and cognitive dysfunction in PD has not yet been well elucidated.

Methods: In this single-site cross-sectional study, we enrolled patients with PD who underwent -(3-[F]fluoropropyl)-2β-carbomethoxy-3β-(4-iodophenyl)nortropane (F-FP-CIT) PET, F-fluorodeoxyglucose (F-FDG) PET, the Movement Disorder Society-sponsored Unified PD Rating Scale examination, and detailed neuropsychological testing.

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  • - The glycosylation profile of therapeutic proteins, especially sialylation, is important for their effectiveness and stability, particularly in fusion proteins used to treat angiogenic disorders.
  • - A mass spectrometry method was used to analyze sialylation levels in VEGFR-IgG fusion proteins by examining different fractions from production media, revealing varying sialylation levels.
  • - The study found that the overall sialylation levels matched the expected results from the different fractions, emphasizing the importance of LC-MS/MS-based analysis for quality control and consistency in biosimilar development.
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Genomic profiling often fails to predict therapeutic outcomes in cancer. This failure is, in part, due to a myriad of genetic alterations and the plasticity of cancer signaling networks. Functional profiling, which ascertains signaling dynamics, is an alternative method to anticipate drug responses.

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Candida albicans (C. albicans) is the primary etiologic agent of vaginal candidiasis. Lactobacillus species are predominant in the vaginal microbiome; they inhibit the development of vaginal candidiasis by producing antimicrobial agents, such as lactic acid and hydrogen peroxide.

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  • Upper tract urothelial carcinoma (UTUC) presents diagnostic and treatment challenges, highlighting the need for new biomarkers for tumor detection.
  • * In a study of 139 UTUC cases, Keratin 17 (KRT17) showed significantly higher expression in malignant tumors compared to normal tissue, particularly in noninvasive and invasive forms.
  • * The KRT17 marker demonstrated strong sensitivity (91%) and specificity (69%) for distinguishing benign from malignant tumors, suggesting its potential utility in future diagnostic practices.
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Background And Purpose: To develop and validate a deep learning-based automatic quantification for nigral hyperintensity and a classification algorithm for neurodegenerative parkinsonism using susceptibility map-weighted imaging (SMwI).

Materials And Methods: We retrospectively collected 450 participants (210 with idiopathic Parkinson's disease [IPD] and 240 individuals in the control group) for training data between November 2022 and May 2023, and 237 participants (168 with IPD, 58 with essential tremor, and 11 with drug-induced Parkinsonism) for validation data between July 2021 and January 2022. SMwI data were reconstructed from multi-echo GRE.

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  • Patients undergoing complex high-risk PCI are still at high risk for adverse events despite standard dual antiplatelet therapy (DAPT).
  • The TAILORED-CHIP trial aims to compare a tailored antiplatelet strategy with an early escalation and late de-escalation approach against conventional DAPT.
  • The study's primary focus is on the net clinical outcome, measuring serious events like death, heart attack, stroke, and significant bleeding within 12 months after the procedure.
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Multiomic profiling of single cells by sequencing is a powerful technique for investigating cellular diversity. Existing droplet-based microfluidic methods produce many cell-free droplets, underutilizing bead barcodes and reagents. Combinatorial indexing on microplates is more efficient for barcoding but labor-intensive.

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Background And Purpose: To train and validate a deep learning (DL)-based segmentation model for cerebral microbleeds (CMB) on susceptibility-weighted MRI; and to find associations between CMB, cognitive impairment, and vascular risk factors.

Materials And Methods: Participants in this single-institution retrospective study underwent brain MRI to evaluate cognitive impairment between January-September 2023. For training the DL model, the nnU-Net framework was used without modifications.

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  • * Fifty patients were monitored using both types of devices simultaneously, assessing their agreement through statistical methods.
  • * Results showed that while heart rate readings were consistent between the devices, some technical measurements had disagreements, but overall, the single-lead ECG is a reliable alternative for monitoring heart activity during exercise.
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  • Generalized pustular psoriasis (GPP) is a rare and serious skin condition characterized by pustules and systemic symptoms, with differences in genetic mutations affecting its presentation and treatment among various ethnic groups.
  • A modified Delphi panel study involving dermatology experts from the Asia-Pacific region aimed to establish a consensus on GPP management due to limited existing evidence and information.
  • The panel reached agreement on 106 key statements addressing GPP’s definition, diagnosis, treatment strategies, and flare severity, creating treatment algorithms to assist clinicians in making informed decisions.
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Purpose: To describe the outcomes of hyperbaric oxygen therapy (HBOT) for patients with central retinal artery occlusion (CRAO) at a single tertiary care center.

Design: Retrospective clinical cohort study.

Methods: Medical records of all patients diagnosed with CRAO who received HBOT at Mayo Clinic in Rochester, Minnesota from January 1, 2009 to December 31, 2020 were reviewed to confirm diagnosis, time from onset to presentation, exam findings, treatments, and follow-up data.

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Background: Rheumatoid arthritis (RA) affects roughly 1% of the population and commonly involves the lungs. Of lung involvement in RA, interstitial lung disease (ILD) is well known; however, airways disease in RA is relatively understudied.

Research Question: What are the baseline airways abnormalities in a prospective cohort of patients with RA based on pulmonary function testing (PFT) results, high-resolution CT (HRCT) scans, and computational imaging analysis and are there associations between these abnormalities and respiratory symptoms?

Study Design And Methods: In this single-center study, 188 patients with RA without a clinical diagnosis of ILD underwent HRCT imaging and PFT.

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: This study aimed to develop an embolic agent with short-term embolic effects using cilastatin as the basic material. : The particle size distribution of 25 mg cilastatin-based short-term embolic agents was evaluated microscopically under three different mixing conditions. A total of thirty-six healthy male Sprague Dawley rats were divided into four groups.

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  • The study investigates the effectiveness of axatilimab, a CSF1R-blocking antibody, for treating chronic graft-versus-host disease (GVHD) in patients post-hematopoietic stem-cell transplantation.
  • In a phase 2 trial involving 241 participants, different doses of axatilimab were tested, with overall response rates of 74%, 67%, and 50% across three dose groups.
  • Alongside substantial improvement in GVHD symptoms measured by patient-reported outcomes, the most frequent side effects were temporary lab abnormalities linked to the treatment.
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Background: Low birthweight (LBW) children have a higher risk of neonatal mortality. All institutional deliveries, therefore, should be weighed to determine appropriate care. Mortality risk for newborns who are not weighed at birth (NWB) is unknown.

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Periprosthetic infections resulting from bacterial biofilm formation following surgical bone fracture fixation present important clinical challenges. Conventional orthopedic implant materials, such as titanium, are prone to biofilm formation. This study introduces a novel surface for orthopedic titanium plates, optimized for clinical application in human bone fractures.

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