Publications by authors named "G-S Kim"

Linn ( L.), commonly known as Holy Basil or Tulsi, is a fragrant herbaceous plant belonging to the Lamiaceae family. This plant is widely cultivated and found in north-central parts of India, several Arab countries, West Africa and tropical regions of the Eastern World.

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  • Ventricular arrhythmias (VAs) like ventricular tachycardia and ventricular fibrillation pose serious treatment challenges with high risks of morbidity and mortality, particularly in patients unresponsive to standard therapies.
  • This study examined the safety and effectiveness of CT-guided left stellate ganglion cryoneurolysis (SGC) in these refractory VA patients across two hospitals, involving 17 patients with a notable reduction in defibrillation events after the procedure.
  • Results showed that 82% of patients were free from defibrillation 24 hours post-procedure, with no serious adverse effects reported, highlighting the potential of SGC as a beneficial alternative treatment strategy for refractory VAs.
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Respiratory symptoms are prevalent in the general population, and they are associated with a decline in lung function and increased mortality. The gut-lung connection suggests intestinal dysbiosis may impact lung diseases, with showing promise in regulating extraintestinal diseases. However, its application in patients with respiratory symptoms lacks clinical trial evidence.

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Early diagnosis and timely initiation of treatment plans for diabetes are crucial for ensuring individuals' well-being. Emerging technologies like artificial intelligence (AI) and computer vision are highly regarded for their ability to enhance the accessibility of large datasets for dynamic training and deliver efficient real-time intelligent technologies and predictable models. The application of AI and computer vision techniques to enhance the analysis of clinical data is referred to as eHealth solutions that employ advanced approaches to aid medical applications.

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Here, we present a bioengineering approach to emulate the human bone marrow in vitro. Our developmentally inspired method uses self-organization of human hematopoietic stem and progenitor cells and vascular endothelial cells cultured in a three-dimensional microphysiological system to create vascularized, perfusable tissue constructs that resemble the hematopoietic vascular niche of the human marrow. The microengineered niche is capable of multilineage hematopoiesis and can generate functionally mature human myeloid cells that can intravasate into perfused blood vessels, providing a means to model the mobilization of innate immune cells from the marrow.

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Parkinson's disease (PD) is a progressive neurological disease that causes both motor and nonmotor symptoms. While our understanding of putative mechanisms has advanced significantly, it remains challenging to verify biomarkers with sufficient evidence for regular clinical use. Clinical symptoms are the primary basis for diagnosing the disease, which can be mild in the early stages and overlap with other neurological disorders.

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G protein-coupled receptors (GPCRs) are essential transmembrane proteins playing key roles in human health and disease. Understanding their atomic-level molecular structure and conformational states is imperative for advancing drug development. Recent breakthroughs in single-particle cryogenic electron microscopy (cryo-EM) have propelled the structural biology of GPCRs into a new era.

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  • Cervical artery dissection (CeAD) is a leading cause of ischemic strokes in young adults, and this study explored the effects of intravenous thrombolysis (IVT) on patients with CeAD and stroke symptoms.
  • Analyzed data from the STOP-CAD study, it found that IVT significantly improved functional independence after 90 days in patients without increasing the risk of symptomatic intracranial hemorrhage.
  • The results suggest that IVT is a beneficial treatment for eligible patients with CeAD, aligning with current medical guidelines on its use.
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Approximately 25% of patients with essential thrombocythemia (ET) present with extreme thrombocytosis (ExT), defined as having a platelet count ≥1000 × 109/L. ExT patients may have an increased bleeding risk associated with acquired von Willebrand syndrome. We retrospectively analyzed the risk of bleeding and thrombosis in ExT vs non-ExT patients with ET at Dana-Farber Cancer Institute and Massachusetts General Hospital from 2014 to 2022 to inform treatment decisions.

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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: The European Chronic Thromboembolic Pulmonary Hypertension (CTEPH) registry, conducted between 2007 and 2012, reported the major impact of pulmonary endarterectomy (PEA) on the long-term survival of patients with CTEPH. Since then, 2 additional treatments for inoperable CTEPH have become available: balloon pulmonary angioplasty (BPA), and an approved oral drug therapy with the guanylate cyclase stimulator riociguat. The current registry aimed to evaluate the effect of these new therapeutic approaches in a worldwide context.

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Background: Muscle-invasive urothelial carcinoma is an aggressive disease with high rates of relapse. Whether pembrolizumab as adjuvant therapy would be effective in patients with high-risk muscle-invasive urothelial carcinoma after radical surgery is unknown.

Methods: In this phase 3 trial, we randomly assigned patients, in a 1:1 ratio, to receive pembrolizumab at a dose of 200 mg every 3 weeks for 1 year or to undergo observation.

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  • Oncogenic mutations in and are key drivers of intraductal papillary mucinous neoplasms (IPMNs), which can lead to pancreatic cancer, and prior research showed that these mutations lead to cystic lesions in a specific mouse model.
  • The study investigated how these mutations affect cell characteristics and gene expression using advanced transcriptional profiling techniques and CRISPR screens to find potential weaknesses in cells with these mutations.
  • The findings revealed that co-expression of and led to a distinct gene signature and increased reliance on glycolysis, suggesting that targeting metabolic changes could be a promising strategy for treating or preventing IPMNs.
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  • The study examines the link between protective lifestyle factors and the age at symptom onset of autosomal dominant Alzheimer disease (ADAD), which is largely influenced by genetics, focusing on how resilience-related experiences may impact this relationship.
  • The researchers analyzed data from the Dominantly Inherited Alzheimer Network, assessing both clinical and lifestyle factors in two groups: one looking at general resilience among people showing cognitive stability despite high pathology and another focusing on specific genetic timelines for ADAD.
  • Findings from 320 participants indicate variations in age at onset among carriers based on lifestyle and resilience factors, revealing potential avenues for understanding how these influences might delay the onset of symptoms in genetically predisposed individuals.
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There are two main families of G protein-coupled receptors that detect odours in humans, the odorant receptors (ORs) and the trace amine-associated receptors (TAARs). Their amino acid sequences are distinct, with the TAARs being most similar to the aminergic receptors such as those activated by adrenaline, serotonin, dopamine and histamine. To elucidate the structural determinants of ligand recognition by TAARs, we have determined the cryo-EM structure of a murine receptor, mTAAR7f, coupled to the heterotrimeric G protein G and bound to the odorant N,N-dimethylcyclohexylamine (DMCHA) to an overall resolution of 2.

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This study was conducted to supplement single and complex probiotics to investigate the effect on growing-finishing pigs and compost. In experiment 1, the 64 crossbred ([Landrace × Yorkshire] × Duroc) pigs with an initial body weight of 18.75 ± 0.

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  • The study aims to identify clinical laboratory markers associated with postacute sequelae of SARS-CoV-2 infection (PASC) due to a lack of validated biomarkers.
  • Conducted with 10,094 participants across 83 sites, the research compared laboratory measures between those with and without prior SARS-CoV-2 infection and analyzed the impact of PASC indices on these measures.
  • Results showed participants with prior infection had lower platelet counts and higher levels of hemoglobin A and urinary albumin-creatinine ratio, but these differences were minor and not significant among those with PASC.
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  • * Sixty adults with MASLD were divided into two groups: one used the mobile app for interventions, while the other received standard educational materials, with liver enzyme levels assessed before and after 4 weeks.
  • * Results showed significant decreases in liver enzymes (alanine aminotransferase and gamma-glutamyl transferase) in the intervention group, suggesting that mobile lifestyle interventions could help improve liver health without impacting body weight or waist circumference, though more extensive studies are needed for confirmation.
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Defining the subset of cellular factors governing SARS-CoV-2 replication can provide critical insights into viral pathogenesis and identify targets for host-directed antiviral therapies. While a number of genetic screens have previously reported SARS-CoV-2 host dependency factors, these approaches relied on utilizing pooled genome-scale CRISPR libraries, which are biased towards the discovery of host proteins impacting early stages of viral replication. To identify host factors involved throughout the SARS-CoV-2 infectious cycle, we conducted an arrayed genome-scale siRNA screen.

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  • A phase 2 clinical trial evaluated tipifarnib, a drug for treating relapsed/refractory peripheral T-cell lymphoma (PTCL), involving 65 adult patients with various subtypes, predominantly angioimmunoblastic T-cell lymphoma (AITL).
  • The results showed an overall objective response rate (ORR) of 39.7%, with a higher ORR of 56.3% specifically in AITL patients; median progression-free survival (PFS) was 3.5 months overall.
  • While hematologic adverse events were observed (like neutropenia and thrombocytopenia), they were manageable, and 60% of responders had mutations linked to potential treatment sensitivity
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Classically, G protein-coupled receptors (GPCRs) promote signaling at the plasma membrane through activation of heterotrimeric Gαβγ proteins, followed by the recruitment of GPCR kinases and βarrestin (βarr) to initiate receptor desensitization and internalization. However, studies demonstrated that some GPCRs continue to signal from internalized compartments, with distinct cellular responses. Both βarr and Gβγ contribute to such non-canonical endosomal G protein signaling, but their specific roles and contributions remain poorly understood.

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Background: Tuberculosis is a serious life-threatening disease among the top global health challenges and rapid and effective diagnostic biomarkers are vital for early diagnosis especially given the increasing prevalence of multidrug resistance.

Methods: Two human whole blood microarray datasets, GSE42826 and GSE42830 were retrieved from publicly available gene expression omnibus (GEO) database. Deregulated genes (DEGs) were identified using GEO2R online tool and Gene Ontology (GO), protein-protein interaction (PPI) network analysis was performed using Metascape and STRING databases.

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This study aimed to investigate effects of long-term probiotic supplementation on gut microbiota and growth performance in health weaned piglets. The non-probiotic group (N-PrB) was fed only a basal diet, while the probiotic group (PrB) was fed a basal diet + probiotic combination (. 1.

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  • Scientists studied skin color in East Asians by looking at over 48,000 people and how it relates to the sun's rays.
  • They found 12 known genes and 11 new ones that help determine skin color, showing how genes work together with sun exposure.
  • The research revealed that East Asians have different genetic traits for skin color compared to Europeans, helping us learn more about how skin color evolves in different places.
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  • The COVID-19 pandemic disrupted access to surveillance and treatments for hepatocellular carcinoma (HCC), leading to underdiagnosis and variable treatment outcomes in the U.S.
  • A study analyzing HCC incidence and mortality from 2001 to 2020 found a 12.2% decrease in the age-adjusted incidence rate in 2020 compared to 2019, especially among Black and Hispanic individuals.
  • Despite the decrease in diagnosed cases, short-term overall survival and mortality rates for HCC remained stable during this period, highlighting a need for further research on long-term effects.
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