3,781 results on '"Jh, Kang"'
Search Results
2. Quantifying the immune response to a tissue-engineered porcine extracellular matrix
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Ryaan EL-Andari, Sabin J Bozso, Jimmy JH Kang, Nicholas M Fialka, David Al-Adra, Steven R Meyer, Michael C Moon, Darren H Freed, Jayan Nagendran, and Jeevan Nagendran
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Embryology ,Biomedical Engineering - Abstract
Aim: Structural valvular deterioration of xenogenic heart valve replacements is thought to be due to a chronic immune response. We sought to engineer porcine extracellular matrix that elicits minimal inflammatory immune response. Materials & methods: Whole blood, bone marrow and pericardium were collected from patients undergoing elective cardiac surgery. Porcine extracellular matrix was decellularized, reseeded with homologous mesenchymal stem cells and exposed to whole blood. Results: DAPI stain confirmed the absence of cells after decellularization, and presence of mesenchymal stem cells after recellularization. There was a significant reduction in IL-1β and TNF-α production in the recellularized matrix. Conclusion: Recellularization of porcine matrix is successful at attenuating the xenogenic immune response and may provide a suitable scaffold to address the current limitations of prosthetic heart valve replacements.
- Published
- 2023
3. Enterococcus faecalis endocarditis resulting in annular rupture: a case report
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Ryaan EL-Andari, Jimmy JH Kang, Vinod K Manikala, Anthony George, and Michael C Moon
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Molecular Medicine ,Cardiology and Cardiovascular Medicine - Abstract
Enterococcus faecalis is the third most common organism to cause infective endocarditis and is associated with high rates of morbidity and mortality. E. faecalis infective endocarditis often presents with a subacute course and with nonspecific constitutional symptoms. Complications related to E. faecalis infective endocarditis are common and include embolic events, abscess formation and pseudoaneurysm formation. Contained annular rupture is a complication of E. faecalis infective endocarditis that, to the authors knowledge, has not been previously described in the literature. Herein, we present an unusual case of a 62-year-old male presenting with classical symptoms of E. faecalis infective endocarditis which resulted in an unusual complication of this condition, a contained annular rupture and the surgical management undertaken to correct this condition.
- Published
- 2023
4. Effect of glucagon-like peptide-1 receptor agonists administration during coronary artery bypass grafting: a systematic review and meta-analysis of randomized control trials
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Abeline R Watkins, Nicholas Fialka, Ryaan EL-Andari, Jimmy JH Kang, Sabin J Bozso, and Jeevan Nagendran
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Molecular Medicine ,Cardiology and Cardiovascular Medicine - Abstract
Aim: To determine if glucagon-like peptide-1 receptor agonists (GLP-1 RAs) can benefit patients receiving coronary artery bypass graft (CABG), GLP-1 RAs administration alongside standard insulin was compared with perioperative insulin alone. Materials & methods: All articles from Pubmed and Scopus databases that compared GLP-1 RA administration to insulin alone during CABG were included for meta-analysis. Short-term postoperative outcomes were analyzed between groups. Results: Average postoperative blood glucose levels significantly favored GLP-1 RA with a mean difference of -0.72 (p
- Published
- 2023
5. Quantifying the immune response to a tissue-engineered porcine extracellular matrix
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EL-Andari, Ryaan, primary, Bozso, Sabin J, additional, JH Kang, Jimmy, additional, Fialka, Nicholas M, additional, Al-Adra, David, additional, Meyer, Steven R, additional, Moon, Michael C, additional, Freed, Darren H, additional, Nagendran, Jayan, additional, and Nagendran, Jeevan, additional
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- 2023
- Full Text
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6. Surgical vs transcatheter aortic valve replacement in bicuspid aortic valve stenosis: A systematic review and meta-analysis
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Jimmy JH. Kang, Nicholas M. Fialka, Ryaan EL-Andari, Abeline Watkins, Yongzhe Hong, Anoop Mathew, Sabin J. Bozso, and Jeevan Nagendran
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Cardiology and Cardiovascular Medicine - Published
- 2023
7. A systematic review and meta-analysis of coronary artery disease and revascularization in lung transplant patients
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Nicholas M. Fialka, Sabin J. Bozso, Ryaan EL-Andari, Jimmy JH. Kang, Bryce Laing, Steven R. Meyer, Jayan Nagendran, and Jeevan Nagendran
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Percutaneous Coronary Intervention ,Treatment Outcome ,Humans ,General Medicine ,Coronary Artery Disease ,Prospective Studies ,Coronary Artery Bypass ,Cardiology and Cardiovascular Medicine ,Lung Transplantation - Abstract
Coronary artery disease (CAD) is common in candidates for lung transplantation (LTx) and has historically been considered a relative contraindication to transplantation. We look to review the outcomes of LTx in patients with CAD and determine the optimum revascularization strategy in LTx candidates. PubMed, Medline and Web of Science were systematically searched by three authors for articles comparing the outcomes of LTx in patients with CAD and receiving coronary revascularization. In total 1668 articles were screened and 12 were included in this review.Preexisting CAD in LTx recipients was not associated with significantly increased postoperative morbidity or mortality. The pooled estimates of mortality rate at 1, 3 and 5 years indicated significantly inferior survival in LTx recipients with a prior history of coronary artery bypass grafting (CABG) [odds ratio (OR), 1.84; 95% confidence interval (CI), 1.53-2.22; P 0.00001; I2 = 0%; OR, 1.52; 95% CI, 1.21-1.91; P = 0.0003; I2 = 0%; OR, 1.62; 95% CI, 1.13-2.33; P = 0.008; I2 = 71%, respectively). However, contemporary literature suggests that survival rates in LTx recipients with CAD that received revascularization either by percutaneous coronary intervention (PCI), previous or concomitant CABG, are similar to patients who did not receive revascularization. Trends in postoperative morbidity favored CABG in the rates of myocardial infarction and repeat revascularization, whereas rates of stroke favored PCI. The composite results of this study support the consideration of patients with CAD or previous coronary revascularization for LTx. Prospective, randomized controlled trials with consistent patient populations and outcomes reporting are required to fully elucidate the optimum revascularization strategy in LTx candidates.
- Published
- 2022
8. Sex-Related Differences in Postoperative Outcomes After Transcatheter Aortic Valve Replacement: A Systematic Review and Meta-analysis
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Sabin J. Bozso, Ryaan EL-Andari, Jimmy JH Kang, Janine Eckstein, and Jeevan Nagendran
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General Medicine ,Cardiology and Cardiovascular Medicine - Abstract
Aortic stenosis (AS) is the most common valvular disease of the heart and is increasing in prevalence. Previous literature has found inferior outcomes for females undergoing surgical aortic valve replacement (SAVR), while recent investigations have found equivalent or superior outcomes for females undergoing transcatheter aortic valve replacement (TAVR). PubMed and Medline were systematically searched for articles published from January 1st 2010 to April 30th 2021 for retrospective and prospective studies comparing outcomes between males and females undergoing TAVR. 1,180 titles and abstracts were screened and 28 were included in this review. Risk of bias was assessed using questions derived from the ROBINS-I tool and previous literature. The data were compiled and analyzed using the RevMan 5.4 software. The results of this review confirm the previously published literature and have found rates of acute kidney injury (p=0.05) and postoperative pacemaker insertion (p0.00001) favoring females, and in-hospital mortality (p=0.04), stroke (p0.00001), bleeding complications (p0.00001), and vascular complications (p0.00001) favoring males. The previously published literature has demonstrated consistently inferior outcomes for females undergoing heart valve surgery when compared to males. However, contemporary literature investigating sex differences after TAVR has found comparable outcomes for females. While the postoperative outcomes after SAVR and TAVR are well established, the causal factors are still unidentified. Future studies utilizing matching based on preoperative characteristics and follow-up including collection of postoperative ventricular remodeling and prosthetic valve performance data will aid in elucidating the causal factors impacting outcomes for males and females after TAVR.
- Published
- 2022
9. Resveratrol attenuates stimulated T-cell activation and proliferation: potential therapy against cellular rejection in organ transplantation
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Jimmy Jh, Kang, Sabin J, Bozso, Dana E, Boe, David P, Al-Adra, Michael C, Moon, Darren H, Freed, Jayan, Nagendran, and Jeevan, Nagendran
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Original Article - Abstract
Background: Pharmaceuticals to inhibit mammalian target of rapamycin (mTOR) protein, which plays an integral role in T cell survival and function, have been used to prevent complications associated with organ transplantation. Although studies have individually shown that resveratrol can inhibit mTOR and that inhibiting mTOR leads to attenuated immune function, no studies to date have examined these two functions conjointly under one study. Therefore, we hypothesize that resveratrol will decrease mTOR activation and expression as well as attenuate stimulated T cell activation and proliferation in peripheral blood mononuclear cells (PBMC). Methods and Materials: Human PBMC were isolated and cultured. The cells were pre-treated with resveratrol (50 μM) overnight (18 hrs) before stimulation. The cells were collected for subsequent biochemical analysis after 1, 3, and 5 days. Additionally, the cells were stained with proliferation dye and cultured for 24 hours in PMA/Ionomycin with resveratrol for flow cytometry analysis. Results: Resveratrol treated stimulated PBMCs displayed a significant decrease in activated phosphorylation of mTOR at days 1, 3, and 5 (P < 0.0329). Markers of T cell activation, tumour necrosis factor-alpha (TNF-α) and interferon-gamma (INF-γ), were also significantly reduced along with T cell proliferation following stimulated PBMC resveratrol treatment when compared to vehicle-treated controls (P < 0.01). Conclusion: Taken together, our data suggest that resveratrol can decrease the immune response of stimulated T-cells and inhibit the expression and activation of mTOR mediated cellular signalling under the same study setting. Therefore, resveratrol proposes a possible adjunctive therapy option for patients undergoing organ transplantation.
- Published
- 2020
10. Poster Sessions
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E Orito, JH Kang, Makoto Honda, S Mochida, S Kaneko, KH Han, E Mita, Kentaro Matsuura, Sung-Ku Ahn, M Sugiyama, K Kashiwase, Masayuki Kurosaki, T Ide, Yasuhiro Asahina, Namiki Izumi, Masaaki Korenaga, A Tamori, Y Itoh, Yoshio Tanaka, Mamoru Watanabe, K Hino, Y Hiasa, Nao Nishida, Kaoru Suzuki, Manabu Minami, Y Poovorawan, Hiromi Sawai, Ken Yamamoto, Shuhei Hige, Y Eguchi, M. F. Yuen, W.-K. Seto, Minae Kawashima, E Tanaka, Y Mawatari, M Mizokami, Koji Tokunaga, Isao Sakaida, and Y Murawaki
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0303 health sciences ,medicine.medical_specialty ,Hepatology ,business.industry ,Cost effectiveness ,Gastroenterology ,Virus ,3. Good health ,03 medical and health sciences ,chemistry.chemical_compound ,0302 clinical medicine ,chemistry ,Chronic hepatitis ,030220 oncology & carcinogenesis ,Boceprevir ,Internal medicine ,Genotype ,medicine ,business ,030304 developmental biology - Abstract
This journal suppl. entitled: Special Issue: The 64th Annual Meeting of the American Association for the Study of Liver Diseases: The Liver Meeting 2013
- Published
- 2013
11. Isolation of embryonic stem cells from enhanced green fluorescent protein-transgenic mouse and their survival in the cochlea after allotransplantation
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Ks Ahn, S-J. Jeon, J-Y. Jung, Ys Kim, Jh Kang, S. Shin, T. Choi, S-J. Choi, P. Chung, and H. Shim
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Homeobox protein NANOG ,Cancer Research ,Cell Survival ,medicine.medical_treatment ,Green Fluorescent Proteins ,Immunology ,Mice, Transgenic ,Cell Separation ,Embryoid body ,Biology ,Stem cell marker ,Green fluorescent protein ,Mice ,medicine ,Animals ,Immunology and Allergy ,Embryonic Stem Cells ,Genetics (clinical) ,Cochlea ,Transplantation ,Cell Biology ,Alkaline Phosphatase ,Embryonic stem cell ,Molecular biology ,Mice, Inbred C57BL ,Oncology ,Stem cell ,Stem Cell Transplantation ,Allotransplantation - Abstract
To study cell replacement therapy using embryonic stem (ES) cells in mice, avoiding immune rejection and tracing the fate of transplanted cells are important issues. This study was carried out to isolate ES cells ubiquitously expressing enhanced green fluorescent protein (EGFP) and test the survival of these cells in allografts in the cochlea of inbred C57BL/6 mice.Putative ES cells were isolated from blastocysts collected from C57BL/6-green mice ubiquitously expressing EGFP. Pluripotency of these cells was tested by expression of stem cell markers and in vitro differentiation of the cells into embryoid bodies. Isolated EGFP-transgenic ES cells were injected into the cochlea of deafened inbred C57BL/6 mice, and survival of transplanted cells was identified in histologic sections of the cochlea.Putative ES cells expressed cellular markers for ES cells, including alkaline phosphatase, Oct-4, Nanog and stage-specific embryonic antigen-1. These cells formed embryoid bodies in suspension cultures. Incorporation of transplanted cells was found at the area of spiral ganglion neurons, auditory nerve fibers reaching the organ of Corti and stria vascularis in the scala media. Grafted cells were also found at the location of inner hair cells underneath the tectorial membrane.The isolation of ES cells from the EGFP-transgenic mouse and transplantation into allogeneic inbred mice may be a useful means of studying cell therapy with respect to the ubiquitous and stable expression of EGFP and elimination of graft rejection.
- Published
- 2008
12. ID1201, chinaberry extract, decreases β-amyloid and attenuates memory deficit
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Hwang, EK Park, YJ Jeon, JH Kang, SW Yeon, Jy Kim, JH Kim, MJ Lee, and JS Yoo
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Pharmacology ,Ethanol ,Stereochemistry ,business.industry ,Organic Chemistry ,Pharmaceutical Science ,In vitro ,Analytical Chemistry ,chemistry.chemical_compound ,Triterpenoid ,Complementary and alternative medicine ,chemistry ,In vivo ,β amyloid ,Active compound ,Drug Discovery ,Scopolamine induced amnesia ,Molecular Medicine ,Medicine ,business - Abstract
We newly found that chinaberry (fruits of Melia toosendan) extracts potently block production of β-amyloid, which is implicated as a cause of Alzheimer's disease, through PI3-kinase mediated α-secretase activation in vitro. Toosendanin, a major triterpenoid in chinaberry, is isolated as an active compound. In consideration of safety and efficacy, we finally choose ID1201, 30% ethanol extract of chinaberry. In studies in vivo, we identified that the treatment with 100mg/kg ID1201 not only significantly reduced β-amyloid in the brains of 5X FAD mice but also ameliorated scopolamine induced amnesia. Taken together, our results present the possibility that ID1201 may have potential for the treatment of Alzheimer's disease. Currently, ID1201 is under preclinical trial.
- Published
- 2012
13. Demetallation of Used Oil to Facilitate Its Utilization as a Fuel
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JH Kang, AR Tarrer, NP Dhuldhoya, ER Bates, J Parrish, and J Kaminski
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Materials science ,Waste management ,Sedimentation (water treatment) ,Waste oil ,Fuel oil ,Highly selective ,law.invention ,Metal ,chemistry.chemical_compound ,chemistry ,Chemical engineering ,Diammonium phosphate ,law ,visual_art ,visual_art.visual_art_medium ,Filtration - Abstract
In the work, a chemical demetallation agent was used to convert entrained nonfilterable metals into a form which could be effectively removed by filtration. Two different types of chemical demetallation agents were used: metallic borohydrides (NaBH/sub 4/ and KBH/sub 4/) and diammonium phosphate (DAP). Several types of used oils having different metal contents were examined. It was observed that metallic borohydrides were highly selective with regard to the types of metals they removed and the accompanying sludge formed made the separation operation inefficient. On the other hand, results obtained with DAP were extremely favorable. The presence of water during the reaction was found to play an important role as a carrier for the DAP. The study also found the use of both sedimentation and filtration separation techniques to be practical, with filtration rates being significantly accelerated by the addition of low percentages of No. 2 fuel oil.
- Published
- 2008
14. Higher body mass index may reduce women's glaucoma risk, study says
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Lr, Pasquale, Wc, Willett, Ba, Rosner, and Jh, Kang
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Women -- Health aspects ,Glaucoma -- Research -- Statistics -- Reports -- Development and progression ,Body mass index -- Health aspects ,Health - Abstract
Women with higher body mass indexes (BMIs) are less likely to develop normal tension glaucoma, according to a study in the August issue of Ophthalmology. Body mass index is a [...]
- Published
- 2010
15. In Situ Hybridization of EGFR mRNA in Normal, Dysplasic, Carcinoma In Situ and Malignant Cervical Tissues
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SE Namkoong, JH Kim, JW Kim, JH Kang, JS Park, HK Kim, Ah Lee, and Te Kim
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Messenger RNA ,Chemistry ,Carcinoma in situ ,medicine ,In situ hybridization ,medicine.disease ,Molecular biology - Published
- 1995
16. Sparing Surgery for the Successful Treatment of Thyroid Papillary Carcinoma Invading the Trachea: A Case Report
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Kulbakin D, Chekalkin T, Marat Muhamedov, Choynzonov E, Jh, Kang, Sb, Kang, and Gunther V
17. Estrogen pathway polymorphisms in relation to primary open angle glaucoma: an analysis accounting for gender from the United States
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Lr, Pasquale, Sj, Loomis, Rn, Weinreb, Jh, Kang, Brian Yaspan, Jc, Bailey, Gaasterland D, Gaasterland T, Rk, Lee, Wk, Scott, Pr, Lichter, Dl, Budenz, Liu Y, and Jl, Wiggs
18. Predictive significance of CCL21 and CXCL13 levels in the minor salivary glands of patients with Sjögren's syndrome
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Ke, Lee, Jh, Kang, Yr, Yim, Je, Kim, Jw, Lee, Lihui Wen, Dj, Park, Tj, Kim, Yw, Park, Kc, Yoon, Js, Lee, and Ss, Lee
19. Restenosis and Hyperplasia: Animal Models
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Antoni Bayes-Genis, Kantor B, Pc, Keelan, Jd, Altman, Df, Lubbe, Jh, Kang, and Rs, Schwartz
20. Hydrogenation and doping of vacuum-evaporated a-Si
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Jun-Bock Jang, Jh Kang, and Choochon Lee
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Glow discharge ,Materials science ,Hydrogen ,chemistry ,Annealing (metallurgy) ,Doping ,Materials Chemistry ,Ceramics and Composites ,Analytical chemistry ,chemistry.chemical_element ,Physics::Atomic Physics ,Condensed Matter Physics ,Electronic, Optical and Magnetic Materials - Abstract
Hydrogenation and doping of vacuum-evaporated a-Si have been achieved by diffusion and coevaporation. Transport and optical properties of the samples after various heat treatments are investigated and the results are compared with those obtained by other methods. Hydrogenation is carried out by diffusing atomic hydrogen produced by glow discharge decomposition of H2 gas into a-Si films after high-vacuum evaporation. Best results are obtained at 350C for both hydrogenation and annealing. Doping is achieved by diffusion of Li after Si evaporation or by coevaporation of Ni with Si.
- Published
- 1980
21. Correction: Nitric oxide releasing nanofiber stimulates revascularization in response to ischemia via cGMP-dependent protein kinase.
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Lee KH, Song MY, Lee S, Park J, Kang JH, Cho H, Kim KB, Son SJ, Cheng XW, Lee YJ, Lee GJ, Shin JH, and Kim W
- Abstract
[This corrects the article DOI: 10.1371/journal.pone.0303758.]., (Copyright: © 2024 Lee et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.)
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- 2024
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22. Efficient multifunctional PPy-NTs/PEI@alginate@NiFe 2 O 4 magnetic beads for heavy metals removal: Experimental design and optimization interpretations.
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Motawea EA, El-Sabban HA, Kang JH, and Ko YG
- Abstract
A highly effective magnetic nanocomposite alginate beads (PPy-NTs/PEI@Alg@NiFe
2 O4 ) were synthesized using alginate as the encapsulation reagent and polypyrrole/polyethylene imine with nano NiFe2 O4 as a functional filler to remove toxic Zn2+ and Pb2+ from polluted water. A response surface methodology (RSM) was used to statistically assess the influences of pH and the adsorbent dose on the adsorption performance. PPy-NTs/PEI@Alg@NiFe2 O4 magnetic microbeads exhibited the optimal adsorption capacity qe (18.6 mg/g) at pH 6 and a 2 mg/L dose for Zn2+ removal. In comparison, the optimal qe (32.6 mg/g) was reached at pH 4.5 with a 1.5 mg/L dose for Pb2+ remediation. From batch experiments, maximal absorption capacities of 53.3 mg/g and 22 mg/g were achieved for Pb2+ and Zn2+ , respectively, at 313 K. The pseudo-second-order kinetic model fitted the results well, suggesting that the chemisorption process regulates adsorption. Isotherm models indicate the presence of homogeneous adsorption sites from the well-fitting to Langmuir isotherm. An investigation of the effects of temperature and thermodynamic considerations revealed the endothermic nature of Zn2+ and Pb2+ absorption. The Fourier transform infrared spectra showed that -NH, -NH2 , and -COO- are the main groups in PPy-NTs/PEI@Alg@NiFe2 O4 composite beads that were responsible for Zn2+ and Pb2+ removal from polluted water., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024. Published by Elsevier B.V.)- Published
- 2024
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23. Efficacy of transdermal buprenorphine patch for managing withdrawal symptoms in patients with cancer physically dependent on prescription opioids.
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Kang JH, Lee KH, Huh SJ, Shin SH, Kim IH, Hwang IG, Koo DH, Lee D, Koh SJ, Seo S, Lee GJ, Chun SH, Ji JH, Oh SY, Choi JW, and Go SI
- Subjects
- Humans, Female, Male, Middle Aged, Adult, Opioid-Related Disorders drug therapy, Aged, Prospective Studies, Buprenorphine administration & dosage, Buprenorphine therapeutic use, Analgesics, Opioid administration & dosage, Analgesics, Opioid adverse effects, Analgesics, Opioid therapeutic use, Transdermal Patch, Neoplasms complications, Neoplasms drug therapy, Substance Withdrawal Syndrome drug therapy
- Abstract
Background: The physical dependence on prescription opioids among cancer survivors remains an under-investigated area, with a scarcity of well-designed prospective studies., Methods: This single-arm, phase-2 clinical trial in Korea assessed the efficacy and safety of a transdermal buprenorphine patch (TBP) in managing physical dependence on prescription opioids in cancer survivors, as confirmed through the DSM-5 criteria or psychiatric consultation for opioid withdrawal. This study involved a 4-phase treatment protocol of screening, induction/stabilization, discontinuation, and monitoring. The primary outcome was the rate of successful opioid discontinuation, as measured by a negative urine-drug screening at 8 weeks. Key secondary outcomes included the resumption of prescribed opioids, changes in both the Clinical Opioid Withdrawal Scale (COWS) and morphine equivalent daily dose (MEDD), and assessments related to the psychological and physiological aspects of dependence and safety., Results: Thirty-one participants were enrolled. In the intention-to-treat population, the success rate of opioid discontinuation was 58%, with only 2 participants experiencing a resumption of prescribed opioids. Significant reductions were observed in MEDD, which decreased from 98 to 26 mg/day (P < .001), and COWS scores, which decreased from 5.5 to 2.8 (P < .001). Desire to use opioids reduced from 7.0 to 3.0 on a 10-point numeric rating scale (P < .001). Toxicities related to TBP were mild and manageable, without severe precipitated withdrawal symptoms., Conclusion: TBP may be considered as an alternative therapeutic option in cancer survivors physically dependent on prescription opioids, especially where sublingual formulations are unavailable., (© The Author(s) 2024. Published by Oxford University Press.)
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- 2024
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24. Metal-Coordinated, Dual-Crosslinked PIM Polymer Membranes for Upgraded CO 2 Separation: Aging and Plasticization Resistance.
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Hossain I, Kim KI, Husna A, Kang JH, Kim TH, and Park HB
- Abstract
The practical use of polymers of intrinsic microporosity (PIMs) in CO
2 separation is often hindered by their moderate selectivity, performance instability over time, and pressure constraints. To address these limitations, a straightforward approach is presented to enhance the CO2 separation capability of PIM-1 by incorporating metal ions into uniformly hydrolyzed PIM-1 (cPIM). This dual linking strategy, achieved via ionic and coordination bonding of metal ions with the polymeric side chains including ─COOH and ─CONH2 , restructures the polymer, disrupting hydrogen bonds between cPIM chains and creating active sites for CO2 via π-complexation. This modification enhances gas permeability while maintaining high selectivity. The optimized zinc-coordinated membrane achieves an impressive CO2 permeability of ≈2,500 Barrer with CO2 /N2 and CO2 /CH4 selectivities of 27.1 and 23, respectively, outperforming pristine cPIM (700 Barrer; CO2 /N2 = 27; CO2 /CH4 = 19). Notably, this performance surpasses the 2008 Robeson upper-bound limits for both gas pairs. Additionally, the metal-coordinated membranes exhibit remarkable long-term stability, resisting aging effects for up to 20 days and maintaining anti-plasticization properties at pressures up to 20 bar. These dual-crosslinked membranes demonstrate promising potential for mixed gas separation, indicating their suitability for real-world industrial applications., (© 2024 Wiley‐VCH GmbH.)- Published
- 2024
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25. Development and validation of a machine learning model for predicting drug-drug interactions with oral diabetes medications.
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Kha QH, Nguyen NTK, Le NQK, and Kang JH
- Abstract
Diabetes management is often complicated by comorbidities, requiring complex medication regimens that increase the risk of drug-drug interactions (DDIs), potentially compromising treatment outcomes or causing toxicity. Although machine learning (ML) models have made strides in DDI prediction, existing approaches lack specificity for oral diabetes medications and face challenges in interpretability. To address these limitations, we propose a novel ML-based framework utilizing the Simplified Molecular Input Line Entry System (SMILES) to encode structural information of oral diabetes drugs. Using this representation, we developed an XGBoost model, selecting molecular features through LASSO. Our dataset, sourced from DrugBank, included 42 oral diabetes drugs and 1,884 interacting drugs, divided into training, validation, and testing sets. The model identified 606 optimal features, achieving an F1-score of 0.8182. SHAP analysis was employed for feature interpretation, enhancing model transparency and clinical relevance. By predicting adverse DDIs, our model offers a valuable tool for clinical decision-making, aiding safer prescription practices. The 606 critical features provide insights into atomic-level interactions, linking computational predictions with biological experiments. We present a classification model specifically designed for predicting DDIs associated with oral diabetes medications, with an openly accessible web application to support diabetes management in multi-drug regimens and comorbidity settings., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024 Elsevier Inc. All rights reserved.)
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- 2024
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26. Retraction: CDX1 Expression Induced by CagA-Expressing Helicobacter pylori Promotes Gastric Tumorigenesis.
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Choi SI, Yoon C, Park MR, Lee D, Kook MC, Lin JX, Kang JH, Ashktorab H, Smoot DT, Yoon SS, and Cho SJ
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- 2024
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27. Mortality in elderly Parkinson's disease patients with long-term care needs: A nationwide population-based study in Korea.
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Lee SH, Kim M, Heo WC, Kim JG, Lee JS, Kang JH, and Lee J
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- Humans, Republic of Korea epidemiology, Male, Female, Aged, Aged, 80 and over, Long-Term Care statistics & numerical data, Comorbidity, Insurance, Long-Term Care statistics & numerical data, Insurance, Long-Term Care economics, Middle Aged, Parkinson Disease mortality, Parkinson Disease epidemiology, Parkinson Disease economics
- Abstract
Background: The effects of long-term care insurance (LTCI) in reducing medical costs and utilization among older adults have been reported. This study aims to investigate the mortality in patients with Parkinson's disease (PD) requiring LTCI and its relationships with economic status., Methods: This study was conducted using the database of the Korean National Health Insurance Service (NHIS)-Senior Cohort between 2008 and 2019. A total of 5937 patients with PD were included. Hazard ratios (HRs) of mortality associated with LTCI were estimated using a Cox regression model. Potential confounders such as demographics and comorbidities were adjusted., Results: Out of 5937 PD patients, 821 required LTCI, and 5116 did not. Compared to PD patients without LTCI, PD patients with LTCI were older and exhibited a higher comorbidity burden. The overall incidence rate of mortality was 18.63 per 100 person-years in PD patients with LTCI. PD patients requiring LTCI were associated with an increased HR of 3.61 (95 % CI = 3.13-4.16) for mortality compared to PD patients not eligible for LTCI. Low-income status with LTCI was associated with the highest mortality risk (HR = 4.54, 95 % CI = 3.38-6.09), compared to middle-income status (HR = 3.47, 95 % CI = 2.64-4.61) and high-income status (HR = 3.53, 95 % CI = 2.91-4.91)., Conclusions: Our study suggests that older PD patients requiring LTCI with low economic status have a higher risk of death. Continuous policy efforts to reduce the mortality risk in this group are needed., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024 Elsevier Ltd. All rights reserved.)
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- 2024
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28. Association Between Leg Muscle Thickness and Walking Test With the Hemophilia-Specific Functional Parameters.
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Hong JP, Kang JH, Lee CH, Lee CH, Chen SH, Liu YL, Tsai JR, Tsai CH, Ho WL, Cheng MM, Charoenpong P, and Chang CY
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- Humans, Cross-Sectional Studies, Male, Adult, Muscle, Skeletal diagnostic imaging, Muscle, Skeletal physiopathology, Middle Aged, Young Adult, Walking physiology, Female, Leg diagnostic imaging, Hemophilia A complications, Hemophilia A physiopathology, Ultrasonography, Quality of Life, Walk Test, Quadriceps Muscle diagnostic imaging, Quadriceps Muscle physiopathology
- Abstract
Objective: The aim of the study is to evaluate the muscle thickness and walking test in people with hemophilia A and their correlation to joint health and functional impairments., Design: This is a cross-sectional study., Results: Twenty-nine severe/moderate people with hemophilia A were enrolled. Muscle thickness of quadriceps and medial gastrocnemius was measured using ultrasound. Joint health and functional capacity were assessed using Hemophilia Joint Health Score, Hemophilia Early Arthropathy Detection with Ultrasound, 6-Minute Walking test, Hemophilia Quality of Life Questionnaire for Adults, and Hemophilia Activities List. Quadriceps muscle thickness significantly correlated with Hemophilia Joint Health Score knee, Hemophilia Early Arthropathy Detection with Ultrasound knee, and Hemophilia Activities List. Calf muscle thickness significantly correlated with the Hemophilia Joint Health Score ankle. After adjusted age and body mass index, calf muscle thickness was inversely associated with the Hemophilia Joint Health Score ankle. Six-Minute Walking test was found to significantly correlate with Hemophilia Joint Health Score total, Hemophilia Early Arthropathy Detection with Ultrasound total, Hemophilia Quality of Life Questionnaire for Adults, and Hemophilia Activities List., Conclusions: Muscle thickness and the distance of 6-Minute Walking Test were linked to assessment of joint health, quality of life, and activity participation in people with hemophilia A. Ultrasound measurement of muscle thickness and walking test seem to be useful tools for the assessment of joint health and functional status in people with hemophilia A., Competing Interests: Conflict of interest statement: Dr. Jiunn-Horng Kang received research funding from Bayer and Sanofi, and honoraria from Sanofi; Dr. Chia-Yau Chang received research funding from Bayer and Sanofi, honoraria from Bay, Sanofi, Novo Nordisk, Takeda, Chugai, and Pfizer, and participated in advisory boards for Sanofi, Novo Nordisk, Bayer, and Chugai. The other authors state that they had no interests, which might be perceived as posing a conflict or bias. All the authors acknowledge the funding support for the study. Other coauthors stated that they had no interests, which might be perceived as posing a conflict or bias., (Copyright © 2024 Wolters Kluwer Health, Inc. All rights reserved.)
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- 2024
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29. Use of Diagnostic Codes for Primary Open-Angle Glaucoma Polygenic Risk Score Construction in Electronic Health Record-Linked Biobanks.
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Tran JH, Kang J, Han E, Gupta U, Seresirikachorn K, Vy HMT, Zhao Y, Rocheleau G, Luo Y, Lee R, Do R, Friedman DS, Kang JH, Wiggs JL, Pasquale LR, Segrè AV, and Zebardast N
- Subjects
- Humans, Retrospective Studies, Male, Female, Aged, Middle Aged, Biological Specimen Banks, Risk Factors, International Classification of Diseases, Visual Fields physiology, Multifactorial Inheritance, Area Under Curve, Tomography, Optical Coherence, Genome-Wide Association Study, Risk Assessment methods, ROC Curve, Predictive Value of Tests, Genetic Risk Score, Glaucoma, Open-Angle genetics, Glaucoma, Open-Angle diagnosis, Electronic Health Records, Intraocular Pressure physiology
- Abstract
Purpose: Polygenic risk scores (PRSs) likely predict risk and prognosis of glaucoma. We compared the PRS performance for primary open-angle glaucoma (POAG), defined using International Classification of Diseases (ICD) codes vs manual medical record review., Design: Retrospective cohort study., Methods: We identified POAG cases in the Mount Sinai BioMe and Mass General Brigham (MGB) biobanks using ICD codes. We confirmed POAG based on optical coherence tomograms and visual fields. In a separate 5% sample, the absence of POAG was confirmed with intraocular pressure and cup-disc ratio criteria. We used genotype data and either self-reported glaucoma diagnoses or ICD-10 codes for glaucoma diagnoses from the UK Biobank and the lassosum method to compute a genome-wide POAG PRS. We compared the area under the curve (AUC) for POAG prediction based on ICD codes vs medical records., Results: We reviewed 804 of 996 BioMe and 367 of 1006 MGB ICD-identified cases. In BioMe and MGB, respectively, positive predictive value was 53% and 55%; negative predictive value was 96% and 97%; sensitivity was 97% and 97%; and specificity was 44% and 53%. Adjusted PRS AUCs for POAG using ICD codes vs manual record review in BioMe were not statistically different (P ≥.21) by ancestry: 0.77 vs 0.75 for African, 0.80 vs 0.80 for Hispanic, and 0.81 vs 0.81 for European. Results were similar in MGB (P ≥.18): 0.72 vs 0.80 for African, 0.83 vs 0.86 for Hispanic, and 0.74 vs 0.73 for European., Conclusions: A POAG PRS performed similarly using either manual review or ICD codes in 2 electronic health record-linked biobanks; manual assessment of glaucoma status might not be necessary for some PRS studies. However, caution should be exercised when using ICD codes for glaucoma diagnosis given their low specificity (44%-53%) for manually confirmed cases of glaucoma., (Copyright © 2024 Elsevier Inc. All rights reserved.)
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- 2024
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30. Comparative analysis of the oncologic outcomes and risk factors for open conversion in laparoscopic surgery for non-metastatic colorectal cancer: A retrospective multicenter study.
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Kang JH, Kim EM, Kim MJ, Oh BY, Yoon SN, Kang BM, and Kim JW
- Abstract
Purpose: Laparoscopic colon surgery is now commonly used for colorectal cancer (CRC) resection. The objective of this study was to compare the oncologic outcomes between open conversion and laparoscopic surgery, and to identify risk factors for open conversion., Methods: We retrospectively reviewed the medical records of patients who underwent curative resection for stage 0-III CRC at five Hallym University-affiliated hospitals between January 2011 and June 2021. The patients were divided into the conversion and laparoscopic groups according to whether laparoscopic surgery was completed., Results: Out of 2231 patients, laparoscopic surgery was completed in 2131 patients and 100 (4.5 %) converted to open surgery. The operation time (P = 0.028) and postoperative hospital stay (P = 0.036) were longer in the conversion group than in the laparoscopic group. Overall (P = 0.022) and severe (Clavien-Dindo classification grade ≥3) (P = 0.048) complications were more frequent in the conversion group than in the laparoscopic group. The 5-year recurrence-free survival (RFS) rate was worse in the conversion group than in the laparoscopic group (P = 0.002). In the multivariable analysis, open conversion was not a prognostic factor for RFS (P = 0.082). Abdominal surgery history (P = 0.021), obstruction (P < 0.001), and T4 stage (P < 0.001) were independently associated with open conversion., Conclusion: The conversion group had worse perioperative and oncologic outcomes. History of abdominal surgery, obstruction, and T4 stage were associated with open conversion. However, conversion itself was not associated with RFS., Competing Interests: Declarations of competing interest None., (Copyright © 2024. Published by Elsevier Ltd.)
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- 2024
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31. Estimating individual risk of catheter-associated urinary tract infections using explainable artificial intelligence on clinical data.
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Sufriyana H, Chen C, Chiu HS, Sumazin P, Yang PY, Kang JH, and Su EC
- Abstract
Background: Catheter-associated urinary tract infections (CAUTIs) increase clinical burdens. Identifying the high-risk patients is crucial. We aimed to develop and externally validate an explainable, prognostic prediction model of CAUTIs among hospitalized individuals receiving urinary catheterization., Methods: A retrospective cohort paradigm was applied for model development and validation using data from two hospitals and used the third hospital's data for external validation. Machine learning algorithms were applied for predictive modeling. We evaluated the calibration, clinical utility, and discrimination ability to choose the best model by the validation set. The best model was assessed for the explainability., Results: We included 122,417 instances from 20-to-75-year-old subjects. Fourteen predictors were selected from 20 candidates. The best model was the RF for prediction within 6 days. It detected 97.63% (95% confidence interval [CI]: ±0.06%) CAUTI positive, and 97.36% (95% CI: ±0.07%) of individuals that were predicted to be CAUTI negative were true negatives. Among those predicted to be CAUTI positives, we expected 22.85% (95% CI: ±0.07%) of them to truly be high-risk individuals. We provide a web-based application and a paper-based nomogram for using this model., Conclusions: Our prediction model accurately detected most CAUTI positive cases, while most predicted negative individuals were correctly ruled out., (Copyright © 2024. Published by Elsevier Inc.)
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- 2024
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32. Formulation and evaluation of carrier-based dry powders containing budesonide and arformoterol for inhalation therapy.
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Oh DW, Choi JH, Yu GH, Kim BK, Cho SM, Choi YW, Jeong JH, Kang JH, Kim DW, and Park CW
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Asthma and Chronic Obstructive Pulmonary Disease (COPD) are major global health concerns, with inhalation therapy being a primary treatment method. Dry powder inhalers (DPIs) often face challenges related to particle aggregation, which can diminish drug delivery efficiency. This study investigates particle aggregation and aims to optimize the cohesion-adhesion balance to improve inhalation efficiency. Advanced techniques like atomic force microscopy and Raman imaging were used to analyze particle interactions, focusing on lactose ratios, particle morphology, and drug-drug interactions. The therapeutic efficacy of optimized formulations containing budesonide (BUD) and Arformoterol (AFT) was assessed using an asthma model, showing significant improvements in sRAW, neutrophil count, and tidal volume compared to the positive control, with p -values below 0.01. AFT exhibited comparable efficacy to Formoterol at half the dose. Additionally, pharmacokinetic studies demonstrated similar in vivo behavior between the drugs, confirming the therapeutic advantage of AFT, with p -values for AUC
0-t and Cmax of .646 and .153, respectively. The fine particle fractions for AFT and BUD were 39.4% and 50.6%, respectively, indicating improved drug delivery efficiency and potential for better clinical outcomes in asthma and COPD patients.- Published
- 2024
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33. Machine learning approaches to identify spatial factors and their influential distances for heavy metal contamination in downstream sediment.
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Lee DH, Lee SI, and Kang JH
- Abstract
Contaminated sediments can adversely affect aquatic ecosystems, making the identification and management of pollutant sources extremely important. In this study, we proposed machine learning approaches to reveal sources and their influential distances for heavy metal contamination of downstream sediment. We employed classification models with artificial neural networks (ANN) and random forest (RF), respectively, to predict the heavy metal contamination of stream sediments using upland environmental variables as input features. A comprehensive Korean nationwide monitoring database containing 1546 datasets was used to train and test the models. These datasets encompass the concentrations of eight heavy metals (Ar, Cd, Cr, Cu, Hg, Ni, Pb, and Zn) in sediment samples collected from 160 stream sites across the nation from 2014 to 2018. Model's prediction accuracy was evaluated for input feature sets from different influential upland areas defined by different buffer radii and the watershed boundary for each site. Although both ANN and RF models were unsatisfactory in predicting heavy metal quartile classes, RF-classifiers with adaptive synthetic oversampling (ORFC) showed reasonably well-predicted classes of the sediment samples based on the Canada's Sediment Quality Guidelines (accuracy ranged from 0.67 to 0.94). The best influential distance (i.e., buffer radius) was determined for each heavy metal based on the accuracy of ORFC. The results indicated that Cd, Cu and Pb had shorter influential distances (1.5-2.0 km) than the other heavy metals with little difference in accuracy for different influential distances. Feature importance calculation revealed that upland soil contamination was the primary factor for Hg and Ni, while residential areas and roads were significant features associated with Pb and Zn contamination. This approach offers information on major contamination sources and their influential areas to be prioritized for managing contaminated stream sediments., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024 Elsevier B.V. All rights reserved.)
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- 2024
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34. The Effect of Climate Change on Indicator Wetland Insects: Predicting the Current and Future Distribution of Two Giant Water Bugs (Hemiptera: Belostomatidae) in South Korea.
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Kim SY, Lim C, Kang JH, and Bae YJ
- Abstract
Giant water bugs (Hemiptera: Belostomatidae) are top predators in wetland ecosystems, serving as biological indicators of the health of lentic ecosystems and as effective biological control agents for freshwater snails and mosquitoes. This study aimed to predict the current and future distribution of two Korean giant water bugs, Appasus japonicus and Diplonychus esakii , under three climate change scenarios, contributing to the sustainable management of wetland ecosystems in South Korea. Using MaxEnt models, we employed seven climatic and three non-climatic variables to investigate the habitat preferences and distribution patterns of the species. The results revealed that A. japonicus is likely to experience a northward range contraction due to climate change, while D. esakii is predicted to expand its distribution northward without losing its current range. These responses may lead to occupancy turnover between the two species, potentially driving reassembly in aquatic organism community. Elevation was the primary factor influencing the distribution of A. japonicus , whereas annual mean temperature was the most informative variable for D. esakii , both factors derived under the current climate conditions. These findings suggest that both species are highly sensitive to climate change, with potential range shifts toward higher latitudes and elevations. This study provides insights into how climate change could impact two giant water bugs, thereby supporting future efforts to manage and conserve wetland ecosystems in this country.
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- 2024
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35. No association of posttraumatic stress disorder with epigenetic aging in women at mid-life: A longitudinal cohort study.
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Roberts AL, Ratanatharathorn A, Chibnik L, Zhu Y, Jha S, Kang JH, Wolf EJ, Kubzansky LD, and Koenen KC
- Abstract
Posttraumatic stress disorder (PTSD) is associated with mortality and increased risk of diseases of aging, but underlying mechanisms remain unclear. We examine associations of PTSD with one potential pathway, accelerated epigenetic aging. In a longitudinal cohort of trauma-exposed middle-aged women (n = 831, n observations = 1,516), we examined cross-sectional and longitudinal associations between PTSD, with and without comorbid depression, and epigenetic aging measured by six clocks at two time points approximately 13.5 years apart: Hannum, Horvath, PhenoAge, GrimAge, DunedinPoAM, and DunedinPACE. We further examined associations of 3 well-established predictors of aging and mortality also linked with PTSD, namely, body mass index (BMI), diet quality, and physical activity, with epigenetic aging. Cross-sectionally, across all six clocks, epigenetic aging in women with PTSD alone, depression alone, and co-occurring depression and PTSD did not differ from the reference group of women without PTSD or depression in analyses adjusted for age, self-reported race, cell proportions, and ancestry principal components. In longitudinal analyses, we similarly did not find any difference in change in epigenetic age over time by PTSD and depression status at baseline. Among the health factors, in cross-sectional analyses, higher BMI was significantly and consistently associated with greater epigenetic aging measured by the PhenoAge, GrimAge, DunedinPoAM, and DunedinPACE clocks, but not measured by the Hannum or Horvath clocks. Physical activity was not consistently associated with epigenetic aging measured by Hannum, Horvath, PhenoAge, or GrimAge. In analyses with the DunedinPoAm and DunedinPACE clocks, women who reported exercise equivalent to 1 or more hours/week walking had slower epigenetic aging than women with less exercise. Diet quality was not consistently associated with epigenetic aging measured by any of the clocks. Our data do not provide evidence that biological aging, as measured by any of the six epigenetic clocks, is a pathway linking PTSD with mortality and diseases of aging., Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024 Elsevier Inc. All rights reserved.)
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- 2024
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36. Distributions of Fecal Indicators at Aquaculture Areas in a Bay of Republic of Korea.
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Park S, Lee C, Jang SJ, Cho K, Kim JH, Kim WK, Kang JH, Park KS, and Ko G
- Abstract
Aquaculture products, such as clams, scallops, and oysters, are major vectors of fecal-derived pathogens. Male-specific and somatic coliphages are strongly correlated with human noroviruses, the major enteric viruses worldwide. Geographic information system with local land-use patterns can also provide valuable information for tracking sources of fecal-derived pathogens. We examined distributions of four fecal indicator microorganisms, i.e., male-specific and somatic coliphage, total coliform, and Escherichia coli ( E. coli ) in three river and seawater sampling sites located on the coast of Gomso Bay in the Republic of Korea during the sampling period (from March 2015 to January 2016). Geospatial analyses of fecal indicators and correlation between environmental parameters and fecal indicators or among fecal indicators were also performed. Overall, river water samples showed highest concentrations of both types of coliphage in summer (July 2015). High concentrations of both total coliform and E. coli were detected in river water during the period from July to September 2015. High concentrations of all fecal indicators were found at site GL02, located in the innermost part of Gomso Bay, which has high-density agriculture and residential areas. Environmental factors related to precipitation-cumulative precipitation on and from 3 days before the sampling day (Prep-0 and Prep-3, respectively)-and salinity were strongly correlated with concentrations of all fecal indicators. The present results suggest that investigations of multiple fecal indicators with a systemic geospatial information are necessary for precisely tracking fecal contaminations of aquaculture products.
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- 2024
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37. Mediating role of obstructive sleep apnea in altering slow-wave activity and elevating Alzheimer's disease risk: Pilot study from a northern Taiwan cohort.
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Tsai CY, Su CL, Huang HT, Lin HW, Lin JW, Hei NC, Cheng WH, Chen YL, Majumdar A, Kang JH, Lee KY, Chen Z, Lin YC, Wu CJ, Kuan YC, Lin YT, Hsu CR, Lee HC, and Liu WT
- Abstract
Objectives: Obstructive sleep apnea is associated with alterations in slow-wave activity during sleep, potentially increasing the risk of Alzheimer's disease. This study investigated the associations between obstructive sleep apnea manifestations such as respiratory events, hypoxia, arousal, slow-wave patterns, and neurochemical biomarker levels., Methods: Individuals with suspected obstructive sleep apnea underwent polysomnography. Sleep disorder indices, oxygen metrics, and slow-wave activity data were obtained from the polysomnography, and blood samples were taken the following morning to determine the plasma levels of total tau (T-Tau) and amyloid beta-peptide 42 (Aβ
42 ) by using an ultrasensitive immunomagnetic reduction assay. Subsequently, the participants were categorized into groups with low and high Alzheimer's disease risk on the basis of their computed product Aβ42 × T-Tau. Intergroup differences and the associations and mediation effects between sleep-related parameters and neurochemical biomarkers were analyzed., Results: Forty-two participants were enrolled, with 21 assigned to each of the low- and high-risk groups. High-risk individuals had a higher apnea-hypopnea index, oxygen desaturation index (≥3%, ODI-3%), fraction of total sleep time with oxygen desaturation (SpO2- 90%TST ), and arousal index and greater peak-to-peak amplitude and slope in slow-wave activity, with a correspondingly shorter duration, than did low-risk individuals. Furthermore, indices such as the apnea-hypopnea index, ODI-3% and SpO2- 90%TST were found to indirectly affect slow-wave activity, thereby raising the Aβ42 × T-Tau level., Conclusions: Obstructive sleep apnea manifestations, such as respiratory events and hypoxia, may influence slow-wave sleep activity (functioning as intermediaries) and may be linked to elevated neurochemical biomarker levels. However, a longitudinal study is necessary to determine causal relationships among these factors., Statement of Significance: This research aims to bridge gaps in understanding how obstructive sleep apnea is associated with an elevated risk of Alzheimer's disease, providing valuable knowledge for sleep and cognitive health., Competing Interests: Declaration of conflicts of interest The authors declare that they have no competing interests., (Copyright © 2024 National Sleep Foundation. Published by Elsevier Inc. All rights reserved.)- Published
- 2024
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38. Tumor-intrinsic role of ICAM-1 in driving metastatic progression of triple-negative breast cancer through direct interaction with EGFR.
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Kang JH, Uddin N, Kim S, Zhao Y, Yoo KC, Kim MJ, Hong SA, Bae S, Lee JY, Shin I, Jin YW, O'Hagan HM, Yi JM, and Lee SJ
- Subjects
- Humans, Female, Animals, Mice, Cell Line, Tumor, Neoplasm Metastasis, Disease Progression, Signal Transduction, Xenograft Model Antitumor Assays, Gene Expression Regulation, Neoplastic, STAT3 Transcription Factor metabolism, Cell Proliferation, Intercellular Adhesion Molecule-1 metabolism, Intercellular Adhesion Molecule-1 genetics, Triple Negative Breast Neoplasms pathology, Triple Negative Breast Neoplasms metabolism, Triple Negative Breast Neoplasms genetics, ErbB Receptors metabolism, Epithelial-Mesenchymal Transition
- Abstract
Triple-negative breast cancer (TNBC), the most aggressive subtype, presents a critical challenge due to the absence of approved targeted therapies. Hence, there is an urgent need to identify effective therapeutic targets for this condition. While epidermal growth factor receptor (EGFR) is prominently expressed in TNBC and recognized as a therapeutic target, anti-EGFR therapies have yet to gain approval for breast cancer treatment due to their associated side effects and limited efficacy. Here, we discovered that intercellular adhesion molecule-1 (ICAM-1) exhibits elevated expression levels in metastatic breast cancer and serves as a pivotal binding adaptor for EGFR activation, playing a crucial role in malignant progression. The activation of EGFR by tumor-expressed ICAM-1 initiates biased signaling within the JAK1/STAT3 pathway, consequently driving epithelial-to-mesenchymal transition and facilitating heightened metastasis without influencing tumor growth. Remarkably, ICAM-1-neutralizing antibody treatment significantly suppressed cancer metastasis in a breast cancer orthotopic xenograft mouse model. In conclusion, our identification of ICAM-1 as a novel tumor intrinsic regulator of EGFR activation offers valuable insights for the development of TNBC-specific anti-EGFR therapies., (© 2024. The Author(s).)
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- 2024
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39. Intracalvariosseous administration of donepezil microspheres protects against cognitive impairment by virtue of long-lasting brain exposure in mice.
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Kang JH, Yang JK, Cho KH, Lee OH, Kwon H, Kim SY, Kim S, and Ko YT
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- Animals, Mice, Male, Alzheimer Disease drug therapy, Polylactic Acid-Polyglycolic Acid Copolymer chemistry, Brain-Derived Neurotrophic Factor metabolism, Drug Delivery Systems methods, Cholinesterase Inhibitors administration & dosage, Cholinesterase Inhibitors pharmacology, Cholinesterase Inhibitors pharmacokinetics, Donepezil administration & dosage, Donepezil pharmacology, Microspheres, Cognitive Dysfunction drug therapy, Brain drug effects, Brain metabolism, Disease Models, Animal
- Abstract
Rationale: Recent studies have demonstrated the direct connections between the skull bone marrow, meninges, and brain. In an effort to explore these connections for the purpose of brain drug delivery, we previously proposed the direct application of CNS drugs into the diploic space between the outer and inner cortex of the skull, namely, intracalvariosseous administration (ICO). It was successfully demonstrated that small molecular to large colloidal drugs can readily reach the brain after ICO in mice and rabbits. Here, we report that a single ICO of donepezil microspheres protects cognitive impairment in Alzheimer mouse models over a month-long period. Methods: Donepezil-loaded long-acting microspheres (DPZ@LAM) were prepared with biodegradable poly(DL-lactide-co-glycolide) (PLGA). Pharmacokinetic study and behavioral test were performed to determine the brain exposure and therapeutic effects after ICO of DPZ@LAM in scopolamine-induced memory-deficient mice. Results: DPZ@LAM were capable of a month-long and precisely controlled drug release. After a single ICO of DPZ@LAM, DPZ concentration in brain sustained above the effective therapeutic levels for four weeks. The long-lasting brain exposure also led to significantly recovered cognitive function in scopolamine-induced memory-deficient mice, along with decreased acetylcholinesterase activity and increased brain-derived neurotrophic factor. Conclusions: ICO allows for BBB-bypassing brain drug delivery through the direct connection between the skull bone marrow and brain, providing an alternative approach for the treatment of neurodegenerative diseases with otherwise BBB impermeable CNS drugs., Competing Interests: Competing Interests: The authors have declared that no competing interest exists., (© The author(s).)
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- 2024
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40. Information and Communications Technology-Based Monitoring Service for Tailored Chronic Disease Management in Primary Care: Cost-Effectiveness Analysis Based on ICT-CM Trial Results.
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Oh SH, Kang JH, and Kwon JW
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- Humans, Chronic Disease therapy, Republic of Korea, Diabetes Mellitus therapy, Diabetes Mellitus economics, Female, Hypertension therapy, Hypertension economics, Male, Middle Aged, Mobile Applications economics, Markov Chains, Adult, Quality-Adjusted Life Years, Aged, Cost-Effectiveness Analysis, Cost-Benefit Analysis methods, Primary Health Care economics, Disease Management
- Abstract
Background: Information and communications technology-based tailored management (TM) intervention is a novel automatic system in which a smartphone app for the management of patients with hypertension and diabetes, the provider web, and Bluetooth devices are linked. However, little evidence exists regarding the cost-effectiveness of the interventions using mobile apps., Objective: This study aimed to assess the cost-effectiveness of TM intervention for adult patients with hypertension or diabetes in primary care compared with usual care (UC)., Methods: Cost-effectiveness analysis using a Markov model was conducted from the Korean health care system perspective. Based on 6-month outcome data from an information and communications technology-based tailored chronic disease management (ICT-CM) trial, effectiveness over a lifetime beyond the trial periods was extrapolated using a cardiovascular disease risk prediction model. Costs were estimated using ICT-CM trial data and national health insurance claims data. Health utility weights were obtained from the Korea National Health and Nutrition Examination Survey., Results: In the base-case analysis, compared with UC, TM was more costly (US $23,157 for TM vs US $22,391 for UC) and more effective (12.006 quality-adjusted life-years [QALYs] for TM vs 11.868 QALYs for UC). The incremental cost-effectiveness ratio was US $5556 per QALY gained. Probabilistic sensitivity analysis showed that the probability of TM being cost-effective compared with UC was approximately 97% at an incremental cost-effectiveness ratio threshold of US $26,515 (KRW 35 million) per QALY gained., Conclusions: Compared with UC, TM intervention is a cost-effective option for patients with hypertension or diabetes in primary care settings. The study results can assist policy makers in making evidence-based decisions when implementing accessible chronic disease management services., (©Sung-Hee Oh, Jae-Heon Kang, Jin-Won Kwon. Originally published in the Journal of Medical Internet Research (https://www.jmir.org), 11.10.2024.)
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- 2024
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41. Hidden underlying mechanisms for changes in mesozooplankton communities: Transport and eddy driven changes.
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Kim M, Choi W, Jang CJ, and Kang JH
- Abstract
Mesozooplankton communities have been used extensively as reliable climate change indicators, mainly because of their rapid growth and sensitivity to environmental changes. This study explored the modifications in the taxonomic composition of the mesozooplankton community and the associated physical changes of transport-driven, eddy-driven, and marine heatwaves in the summers of the last 14 years (2009-2022) within the mixed layer of the Ulleung Basin in the East Sea/Japan Sea, where surface waters have rapidly warmed in recent decades. A slight increase was observed in the abundance of mesozooplankton from 2009 (3709 inds.m
-3 ) to 2022 (4231 inds.m-3 ), with two notable peaks in 2015 (11,377 inds.m-3 ) and 2020 (11,184 inds.m-3 ), which was mainly attributed to the prevalence of Noctiluca scintillans. The first peak in 2015 showed thaliaceans to be the next dominant taxa, in which the southward direction of meandering in East Korea Warm Current (EKWC), presence of the Ulleung warm eddy, lower volume of the Western Channel (V-west) of the Korea Strait, and marine heatwaves (MHWs) did not occur. In contrast to the first peak, the second peak in 2020 showed Pyrocystis pseudonoctiluca to be the next dominant species, which may have been transported and advected by the strong V-west and eastward direction of the EKWC and the occurrence of MHWs that allowed the persistence of the subtropical species P. pseudonoctiluca. Overall, the significant increases in the second dominant mesozooplankton taxa appeared to be affected by physical changes, including transport or eddy-driven changes, along with the occurrence of strong V-west, the direction of the EKWC, and the occurrence of MHWs, which may synergistically influence the increase in the second dominant taxa during summer. This study highlights the complex interplay between notable variations in mesozooplankton communities and environmental factors, highlighting the potential consequences of different physical changes (transport-driven and eddy-driven) in this regional ocean., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024 Elsevier B.V. All rights reserved.)- Published
- 2024
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42. Polygenic risk and rare variant gene clustering enhance cancer risk stratification for breast and prostate cancers.
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Kang JH, Lee Y, Kim DJ, Kim JW, Cheon MJ, and Lee BC
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- Humans, Male, Female, Risk Assessment, Risk Factors, Multigene Family, Prostatic Neoplasms genetics, Breast Neoplasms genetics, Breast Neoplasms epidemiology, Genetic Predisposition to Disease, Multifactorial Inheritance
- Abstract
Polygenic risk score (PRS) and rare monogenic variant screening are valuable tools for predicting cancer risk and identifying individuals at high risk. Integrating both common and rare genetic variants is crucial for accurate risk assessment. However, estimating the impacts of rare variants on cancer and combining them with PRS remains challenging. Here, we analyze 454,711 exome sequencing and 487,409 array UK Biobank samples, focusing on breast and prostate cancers. We introduce an expanded PRS (EPRS) approach, yielding a systematic model for more effective risk stratification. By prioritizing and clustering genes with cancer-specific rare variants based on odds ratios and population-attributable fraction, we refine risk stratification by combining both monogenic and polygenic effects. Individuals in high-PRS groups with rare high-impact gene variants show up to 15- and 22-fold higher risk for breast and prostate cancers, respectively, compared to those in the intermediate-PRS groups without rare variants. Combined risk profiles vary across distinct rare variant clusters within the same PRS group for both cancers. Our EPRS approach enhances risk stratification for breast and prostate cancers, offering important insights for future research and potential applications to other cancer types., (© 2024. The Author(s).)
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- 2024
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43. Protective effects of immunization with a novel 4 recombinant pore-forming toxoid combination vaccine in a rabbit model of systemic methicillin-resistant Staphylococcus aureus infection.
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Söderhäll T, Kim SB, Choi GS, Kang KR, Ji JH, Lee BL, and Kang JH
- Abstract
Purpose: Staphylococcus aureus is a Gram-positive bacterium that most frequently acquires antibiotic resistance. As an opportunistic pathogen, it can cause conditions such as bacteremia, sepsis, and myocarditis. Due to the social need for a vaccine against methicillin-resistant Staphylococcus aureus (MRSA), many research groups have been designing and studying vaccines for decades. In this study, we developed a multivalent vaccine and evaluated its efficacy by applying a novel adjuvant, β-glucan., Materials and Methods: A vaccine composed of four pore-forming toxins from S. aureus was administered to rabbits 3 times, after which they were challenged with S. aureus USA 300 LAC strain. We measured changes in the rabbits' body weight to monitor systemic adverse reactions and analyzed the total immunoglobulin G antibody titer against the four antigens using enzyme-linked immunosorbent assay. For each rabbit, the number of abscesses and colony-forming units (CFU) in the kidneys were measured., Results: In all vaccinated groups, strong antibody responses against the four antigens were observed. After challenging with MRSA, the vaccinated groups showed less weight change compared to the non-vaccinated groups (average 5.7% versus 13.5%). Additionally, the number of renal abscesses was significantly lower in the vaccinated groups, with three individuals in group 1 (four antigens adjuvanted with β-glucan_PK1) showing no abscess formation. The number of bacteria identified in the kidneys was also statistically significantly lower in the vaccinated group compared to the non-vaccinated group., Conclusion: We demonstrated that the four toxoid antigens we selected can protect against S. aureus infection in a rabbit model and that β-glucan could be used as an immune enhancer. Overall, our study shows that new antigen combinations can induce protective immunity in animal models and that a toxin-based vaccine can help control bacterial colonization., Competing Interests: No potential conflict of interest relevant to this article was reported., (© Korean Vaccine Society.)
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- 2024
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44. Nationwide precision oncology pilot study: KOrean Precision Medicine Networking Group Study of MOlecular profiling-guided therapy based on genomic alterations in advanced solid tumors (KOSMOS) KCSG AL-20-05.
- Author
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Kim TY, Kim SY, Kim JH, Jung HA, Choi YJ, Hwang IG, Cha Y, Lee GW, Lee YG, Kim TM, Lee SH, Lee S, Yun H, Choi YL, Yoon S, Han SW, Kim TY, Kim TW, Zang DY, and Kang JH
- Subjects
- Humans, Middle Aged, Male, Female, Aged, Pilot Projects, Adult, Aged, 80 and over, Young Adult, High-Throughput Nucleotide Sequencing methods, Republic of Korea, Genomics methods, Molecular Targeted Therapy methods, Precision Medicine methods, Neoplasms genetics, Neoplasms drug therapy
- Abstract
Background: Next-generation sequencing (NGS) has become widely available but molecular profiling-guided therapy (MGT) had not been well established in the real world due to lack of available therapies and expertise to match treatment. Our study was designed to test the feasibility of a nationwide platform of NGS-guided MGT recommended by a central molecular tumor board (cMTB) for metastatic solid tumors., Patients and Methods: Patients with advanced or metastatic solid tumors with available NGS results and without standard treatment were enrolled. The cMTB interpreted the patients' NGS reports and recommended the following: (i) investigational medicinal products (IMPs) approved in other indications; (ii) alternative treatments; (iii) clinical trials. The primary variables were the proportion of patients with actionable genomic alterations and those receiving MGT as per cMTB recommendations. Others included treatment duration (TD), overall response rate (ORR), disease control rate (DCR), and safety., Results: From February 2021 to February 2022, 193 cases [99 (51.3%) men; median age 58 years (range 24-88 years); median line of previous treatment 3 (range 0-9)] from 29 sites were enrolled for 60 cMTB sessions. The median time from case submission to cMTB discussion was 7 days (range 2-20 days), and to IMP treatment initiation was 28 days (range 14-90 days). Actionable genetic alterations were found in 145 patients (75.1%). A total of 89 (46.1%) patients received actual dosing of IMPs, and 10 (5.2%) were enrolled in cMTB-recommended clinical trials, achieving an MGT rate of 51.3%. ORR and DCR of IMPs were 10.1% and 72.5%, respectively. The median TD was 3.5 months [95% confidence interval (CI) 2.8-5.5 months], and the 4-month TD rate was 44.9%. The median overall survival of patients who received IMPs was 6.9 months (95% CI 5.2-10.0 months)., Conclusion: KOSMOS confirmed the feasibility of MGT recommended by the cMTB, achieving a high MGT match rate and promising effectiveness in heavily pretreated advanced cancer patients., (Copyright © 2024 The Author(s). Published by Elsevier Ltd.. All rights reserved.)
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- 2024
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45. Precision Oncology Clinical Trials: A Systematic Review of Phase II Clinical Trials with Biomarker-Driven, Adaptive Design.
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Ha H, Lee HY, Kim JH, Kim DY, An HJ, Bae S, Park HS, and Kang JH
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- Humans, Research Design, Medical Oncology methods, Precision Medicine methods, Biomarkers, Tumor metabolism, Clinical Trials, Phase II as Topic methods, Neoplasms drug therapy
- Abstract
Novel clinical trial designs are conducted in the precision medicine era. This study aimed to evaluate biomarker-driven, adaptive phase II trials in precision oncology, focusing on infrastructure, efficacy, and safety. We systematically reviewed and analyzed the target studies. EMBASE and PubMed searches from 2015 to 2023 generated 29 eligible trials. Data extraction included infrastructure, biomarker screening methodologies, efficacy, and safety profiles. Government agencies, cancer hospitals, and academic societies with accumulated experiences led investigator-initiated precision oncology clinical trials (IIPOCTs), which later guided sponsor-initiated precision oncology clinical trials (SIPOCTs). Most SIPOCTs were international studies with basket design. IIPOCTs primarily used the central laboratory for biomarker screening, but SIPOCTs used both central and local laboratories. Most of the studies adapted next-generation sequencing and/or immunohistochemistry for biomarker screening. Fifteen studies included an independent central review committee for outcome investigation. Efficacy assessments predominantly featured objective response rate as the primary endpoint, with varying results. Nine eligible studies contributed to the United States Food and Drug Administration's marketing authorization. Safety monitoring was rigorous, but reporting formats lacked uniformity. Health-related quality of life and patient-reported outcomes were described in some protocols but rarely reported. Our results reveal that precision oncology trials with adaptive design rapidly and efficiently evaluate anticancer drugs' efficacy and safety, particularly in specified biomarker-driven cohorts. The evolution from IIPOCT to SIPOCT has facilitated fast regulatory approval, providing valuable insights into the precision oncology landscape.
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- 2024
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46. Collagen patches releasing phosphatidylserine liposomes guide M1-to-M2 macrophage polarization and accelerate simultaneous bone and muscle healing.
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Toita R, Shimizu Y, Shimizu E, Deguchi T, Tsuchiya A, Kang JH, Kitamura M, Kato A, Yamada H, Yamaguchi S, and Kasahara S
- Subjects
- Animals, Mice, Wound Healing drug effects, RAW 264.7 Cells, Mice, Inbred C57BL, Cell Differentiation drug effects, Bone and Bones drug effects, Cell Polarity drug effects, Osteoblasts metabolism, Osteoblasts drug effects, Osteoblasts cytology, Liposomes chemistry, Macrophages metabolism, Macrophages drug effects, Phosphatidylserines metabolism, Phosphatidylserines pharmacology, Collagen pharmacology, Collagen chemistry
- Abstract
Bilateral communication between bones and muscles is essential for healing composite bone-muscle injuries from orthopedic surgeries and trauma. However, these injuries are often characterized by exaggerated inflammation, which can disrupt bone-muscle crosstalk, thereby seriously delaying the healing of either tissue. Existing approaches are largely effective at healing single tissues. However, simultaneous healing of multiple tissues remains challenging, with little research conducted to date. Here we introduce collagen patches that overcome this overlooked issue by harnessing the plasticity of macrophage phenotypes. Phosphatidylserine liposomes (PSLs) capable of shifting the macrophage phenotype from inflammatory M1 into anti-inflammatory/prohealing M2 were coated on collagen patches via a layer-by-layer method. Original collagen patches failed to improve tissue healing under inflammatory conditions coordinated by M1 macrophages. In contrast, PSL-coated collagen patches succeeded in accelerating bone and muscle healing by inducing a microenvironment dominated by M2 macrophages. In cell experiments, differentiation of preosteoblasts and myoblasts was completely inhibited by secretions of M1 macrophages but unaffected by those of M2 macrophages. RNA-seq analysis revealed that type I interferon and interleukin-6 signaling pathways were commonly upregulated in preosteoblasts and myoblasts upon stimulation with M1 macrophage secretions, thereby compromising their differentiation. This study demonstrates the benefit of PSL-mediated M1-to-M2 macrophage polarization for simultaneous bone and muscle healing, offering a potential strategy toward simultaneous regeneration of multiple tissues. STATEMENT OF SIGNIFICANCE: Existing approaches for tissue regeneration, which primarily utilize growth factors, have been largely effective at healing single tissues. However, simultaneous healing of multiple tissues remains challenging and has been little studied. Here we demonstrate that collagen patches releasing phosphatidylserine liposomes (PSLs) promote M1-to-M2 macrophage polarization and are effective for simultaneous healing of bone and muscle. Transcriptome analysis using next-generation sequencing reveals that differentiation of preosteoblasts and myoblasts is inhibited by the secretions of M1 macrophages but promoted by those of M2 macrophages, highlighting the importance of timely regulation of M1-to-M2 polarization in tissue regeneration. These findings provide new insight to tissue healing of multiple tissues., Competing Interests: Declaration of competing interest The authors declare the following financial interests/personal relationships which may be considered as potential competing interests: Riki Toita received a research grant from NGK Spark Plug Co., Ltd. (currently Niterra Co., Ltd.) Masahiro Kitamura, Atsushi Kato, Hideto Yamada, Shogo Yamaguchi, and Shinjiro Kasahara are employees of Niterra Co., Ltd. The remaining authors declare no competing interests., (Copyright © 2024 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.)
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- 2024
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47. Lazertinib in EGFR-Variant Non-Small Cell Lung Cancer With CNS Failure to Prior EGFR Tyrosine Kinase Inhibitors: A Nonrandomized Controlled Trial.
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Hong MH, Choi YJ, Ahn HK, Lim SM, Keam B, Kim DW, Kim TM, Youk J, Kim YJ, Hwang S, Kim S, Kim JW, Kim HR, and Kang JH
- Subjects
- Humans, Male, Female, Middle Aged, Aged, Adult, Aged, 80 and over, Brain Neoplasms secondary, Brain Neoplasms drug therapy, Brain Neoplasms genetics, Progression-Free Survival, Central Nervous System Neoplasms drug therapy, Central Nervous System Neoplasms secondary, Republic of Korea, Tyrosine Kinase Inhibitors, Carcinoma, Non-Small-Cell Lung drug therapy, Carcinoma, Non-Small-Cell Lung pathology, Carcinoma, Non-Small-Cell Lung genetics, ErbB Receptors antagonists & inhibitors, ErbB Receptors genetics, Lung Neoplasms drug therapy, Lung Neoplasms pathology, Lung Neoplasms genetics, Protein Kinase Inhibitors therapeutic use, Protein Kinase Inhibitors adverse effects
- Abstract
Importance: EGFR-variant non-small cell lung cancer (NSCLC) is associated with a high rate of central nervous system (CNS) metastases, even with treatment with first-generation or second-generation epidermal growth factor receptor (EGFR) tyrosine kinase inhibitors (TKIs)., Objective: To investigate CNS activity with lazertinib, a third-generation EGFR TKI., Design, Setting, and Participants: This multicenter single-arm, phase 2 nonrandomized controlled trial was conducted in South Korea and included patients with EGFR-variant NSCLC who had asymptomatic or mildly symptomatic brain metastases after unsuccessful treatment with first-generation or second-generation EGFR TKIs. Data were collected from June 2021 to April 2022, with a data cutoff date of December 15, 2022., Exposure: Lazertinib, 240 mg, once daily., Main Outcomes and Measures: The primary end point was intracranial objective response rate (iORR) in the evaluable population according to the Response Evaluation Criteria in Solid Tumours version 1.1 assessed by the investigators. Secondary end points included intracranial progression-free survival (iPFS) and iORR in patients with T790M-negative disease and isolated CNS progression as well as overall ORR, duration of response, intracranial duration of response, disease control rate, overall survival, cerebrospinal fluid penetration of lazertinib, and safety., Results: Among 40 included patients, 25 (63%) were women, and the median (range) age was 63 (29-85) years. A total of 38 patients were evaluable for tumor response, including 12 patients with leptomeningeal metastases. At data cutoff, the median (range) follow-up was 13.6 (2.9-17.7) months. The iORR for the evaluable population was 55% (21 of 38; 95% CI, 38.3-71.4); for patients with T790M-positive disease, 80% (4 of 5; 95% CI, 28.4-99.5); for patients with T790M-negative disease, 43% (9 of 21; 95% CI, 21.8-66.0); and for patients with T790M-unknown disease, 67% (8 of 12; 95% CI, 34.9-90.1). The median iPFS was 15.8 months (95% CI, 15.2-not reached) for the evaluable population, 15.2 months (95% CI, 4.2-not reached) for the T790M-positive subgroup, 15.4 months (95% CI, 7.9-not reached) for the T790M-negative subgroup, and 18.0 months (95% CI, 3.9-not reached) for the T790M-unknown subgroup. The cerebrospinal fluid penetration rate of lazertinib was 46.2% (95% CI, 10.0-49.6), providing further support for its mechanism of intracranial response. Most adverse events were grade 1 or 2., Conclusions and Relevance: In this study, lazertinib had substantial CNS activity, regardless of T790M status, against the progression of intracranial metastases with or without leptomeningeal metastases after unsuccessful treatment with first-generation or second-generation EGFR TKIs in patients with metastatic EGFR-variant NSCLC. These results suggest that using lazertinib instead of brain local treatment could be a potential strategy in patients with EGFR-variant NSCLC whose CNS metastases progressed after prior EGFR TKI treatment., Trial Registration: ClinicalTrials.gov Identifier: NCT05326425.
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- 2024
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48. New potential diagnostic markers for verrucous hyperplasia and verrucous carcinoma based on RNA-sequencing data.
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Kim J, Kang JH, Noh MG, Lee B, Choi YD, Kim OJ, and Kim Y
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- Humans, Gene Expression Regulation, Neoplastic, Male, RNA, Messenger genetics, RNA, Messenger metabolism, Sequence Analysis, RNA, Female, Gene Expression Profiling methods, Middle Aged, Aged, Skin Neoplasms genetics, Skin Neoplasms pathology, Skin Neoplasms diagnosis, Carcinoma, Verrucous genetics, Carcinoma, Verrucous pathology, Carcinoma, Verrucous diagnosis, Biomarkers, Tumor genetics, RNA, Long Noncoding genetics, Hyperplasia genetics
- Abstract
Verrucous carcinoma (VC) is a rare subtype of squamous cell carcinoma (SCC) characterized by its histological presentation as a low-grade tumor with no potential for metastasis, setting it apart from invasive SCC. However, distinguishing VC from its benign counterpart, verrucous hyperplasia (VH), is challenging due to their clinical and morphological similarities. Despite the importance of accurate diagnosis for determining treatment strategies, diagnosis of VH and VC relied only on lesion recurrence after resection. To address this challenge, we generated RNA profiling data from tissue samples of VH and VC patients to identify novel diagnostic markers. We analyzed differentially expressed (DE) mRNA and long non-coding RNA (lncRNA) in tissue samples from VH and VC patients. Additionally, ChIP-X Enrichment Analysis 3 (ChEA3) was conducted to identify the top five transcription factors potentially regulating the expression of DE mRNAs in VH and VC. Our analysis of mRNA and lncRNA expression profiles in VH and VC provides insights into the underlying molecular characteristics of these diseases and offers potential new diagnostic markers. The identification of specific DE genes and lncRNAs may enable clinicians to more accurately differentiate between VH and VC, leading to better treatment choices., Competing Interests: Declaration of competing interest No potential conflict of interest relevant to this article was reported., (Copyright © 2024 The Authors. Published by Elsevier Ltd.. All rights reserved.)
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- 2024
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49. Sinapine suppresses ROS-induced C2C12 myoblast cell death through MAPK and autophagy pathways.
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Kang JH, Kim DH, Yoo J, Shin JH, Kim JH, Lee JW, and Shin SH
- Abstract
Oxidative stress in skeletal muscle can lead to muscle atrophy through reactive oxygen species (ROS)-induced damage and cell death. tert -Butyl hydroperoxide (TBHP), an exogenous ROS generator, induces oxidative stress and cell death in various cells. Sinapine from cruciferous plants possesses beneficial effects, but its role in protecting skeletal muscle cells against ROS-induced cell death remains unclear. This study demonstrates that sinapine pretreatment significantly reduced TBHP-induced cell death and ROS accumulation in a dose-dependent manner. TBHP activated mitogen-activated protein kinase (MAPK) pathways including Akt, p38, and JNK, and triggered autophagy. Sinapine suppressed the phosphorylation of Akt, MEK3/6, p38, MEK4, and JNK, and modulated key autophagy markers. Notably, the co-treatment of MAPK inhibitors attenuated TBHP-induced cell death and LC3B-II accumulation. These findings suggest that sinapine is a promising phytochemical for mitigating oxidative stress-mediated muscle injury, offering potential therapeutic strategies for maintaining skeletal muscle homeostasis and addressing muscle-related pathologies., Competing Interests: Conflict of interestThe authors declare no conflict of interest., (© The Korean Society of Food Science and Technology 2024. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.)
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- 2024
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50. Association between antibiotic use and cardiovascular diseases in metabolic dysfunction-associated steatotic liver disease: A nationally representative retrospective cohort study.
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Kang JH, Park SJ, Jeong S, Park YJ, Kim HJ, Song J, Choi J, Park S, Kim J, Lee H, Chang J, Son JS, and Park SM
- Abstract
Aim: Various subcategories for steatotic liver disease (SLD) were proposed globally. Previous studies suggested a heightened risk of cardiovascular diseases (CVD) with prolonged antibiotic exposure and metabolic dysfunction-associated SLD (MASLD), respectively. This study investigates the impact of antibiotic usage on CVD in MASLD patients., Methods: From the Korean National Health Insurance Service database, 276 520 adults aged 40 and older were included. Antibiotic exposure was defined by the cumulative prescription days and the number of classes. Participants were categorized into no SLD and MASLD groups. Hepatic steatosis was defined by using the fatty liver index ≥60. From 2013 to 2019, 16 197 CVD cases were recorded. A multivariate Cox model, adjusting for covariates, assessed adjusted hazard ratios (aHRs) and 95% confidence intervals (CIs) for CVD risk associated with MASLD and antibiotic prescriptions., Results: The group with ≥91 days of antibiotics prescribed and MASLD showed a significantly increased risk of CVD (aHR, 1.56; 95% CI, 1.39-1.74) compared with antibiotic non-users without SLD. Furthermore, the group with ≥4 classes of antibiotics prescribed and MASLD had an elevated risk of CVD (aHR, 1.49; 95% CI, 1.34-1.66) compared with antibiotic non-users without SLD. Consistent results were observed in several sensitivity analyses., Conclusions: Our study identified prolonged antibiotic exposure may be a factor that increases the risk of CVD in MASLD patients. These findings suggest an epidemiological basis for the therapeutic application of antibiotics in MASLD patients, and emphasize the need for further studies to deepen the understanding of these intricate relationships., (© 2024 Japan Society of Hepatology.)
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- 2024
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