329 results on '"Lim CL"'
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2. NEUTRAL RIGHTS AND COLLECTIVE COUNTERMEASURES FOR ERGA OMNES VIOLATIONS
- Author
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Lim, CL, primary and Mitchell, Ryan Martínez, additional
- Published
- 2023
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3. The Decay of International Law: A Re-appraisal of the Limits of Legal Imagination in International Affairs, With a New Introduction by Anthony Carty [Manchester University Press, Manchester, 2019, xxx +194pp, ISBN: 978-1-5261-2791-4, £22.50 (p/bk)]
- Author
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Lim, CL, primary
- Published
- 2022
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- View/download PDF
4. The Uses of Pacific Settlement Techniques in Malaysia-Singapore Relations
- Author
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Lim, CL
- Published
- 2005
5. The constitution and the reception of customary international law: 'Nguyen Tuong Van v. Public Prosecutor'
- Author
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Lim, CL
- Published
- 2005
6. Race, multi-cultural accommodation and the constitutions of Singapore and Malaysia
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Lim, CL
- Published
- 2004
7. Executive Lawmaking in Compliance of International Treaty
- Author
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Lim, CL
- Published
- 2002
8. Singapore Crimes Abroad
- Author
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Lim, CL
- Published
- 2001
9. A Landscape of Contemporary Theories of International Law by Emmanuel Roucounas [Brill Nijhoff, Leiden, 2019, xvi + 702pp, ISBN: 978-90-04-38535-1, €380/$456 (h/bk)]
- Author
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Lim, CL, primary
- Published
- 2021
- Full Text
- View/download PDF
10. Book Review: The Decay of International Law: A Re-appraisal of the Limits of Legal Imagination in International Affairs, With a New Introduction
- Author
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Lim, CL
- Published
- 2023
- Full Text
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11. Outcome of Isoniazid Preventive Therapy in Adults Living with HIV in Penang, Malaysia
- Author
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Wong Ps, Pereirasamy L, Chow Ts, Ang Pp, Leong Kn, and Lim Cl
- Subjects
Hepatitis ,medicine.medical_specialty ,Tuberculosis ,business.industry ,Incidence (epidemiology) ,Retrospective cohort study ,Hepatitis B ,medicine.disease ,Omics ,Rash ,Internal medicine ,parasitic diseases ,Immunology ,medicine ,medicine.symptom ,business ,Adverse effect - Abstract
Isoniazid preventive therapy (IPT) is a recommended strategy by World Health Organization (WHO) for prevention of active TB infection in people living with HIV. However, data on feasibility and outcome of IPT in Asia are limited. We conducted a retrospective study of 242 HIV patients in Penang who were commenced on IPT between 2011 and 2014, at two HIV specialist clinics in Penang General Hospital and Seberang Jaya Hospital. We evaluated the outcome of IPT in terms of completion rate, adverse events and incidence of active TB. A total of 193 (81.1%) patients completed 6 months of IPT. Patients receiving concurrent highly active antiretroviral therapy (HAART) had significantly higher IPT completion rate (86.1%) compared to those who were not on HAART (67.7%). Major reasons for non-completion were adverse events (21/45) and defaulting from follow-up (17/45). Forty patients (18%) developed adverse events, including hepatotoxicity (8.56%) and rash (5.41%). The risk factors for hepatotoxicity were Hepatitis B/C co-infection and alanine transaminase above the upper limit of normal at baseline. None of our patients who received IPT developed active TB up to 1 year of follow-up. IPT is feasible and relatively safe. Coadministration of IPT with HAART does not compromise safety or compliance.
- Published
- 2016
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12. Protective effect of Gastrodia elata blume extracts on cerebral injury induced by middle cerebral artery occlusion in rats
- Author
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Shin, JH, primary, Seok, PR, additional, Lim, CL, additional, Choi, JW, additional, and Choi, J, additional
- Published
- 2015
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13. Branched oligomerization of cell-permeable peptides markedly enhances the transduction efficiency of adenovirus into mesenchymal stem cells
- Author
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Song My, Lee Zh, Chung Yj, Yang D, Seo Sh, Kim Hn, Kwan Yong Choi, Lim Cl, Lee Hy, Su-Hyung Park, Je-Min Choi, Kim Sm, Lee Sk, Youn Ji, Park Si, Jin Ht, Junsang Doh, Sung Yc, Jeun Ss, Sung Sy, Kim M, Hwang Sj, and Lim Jy
- Subjects
Male ,media_common.quotation_subject ,Genetic Vectors ,Bone Morphogenetic Protein 2 ,Cell-Penetrating Peptides ,Gene delivery ,Biology ,medicine.disease_cause ,Bone morphogenetic protein 2 ,Adenoviridae ,Rats, Sprague-Dawley ,Transduction (genetics) ,Osteogenesis ,Transduction, Genetic ,Genetics ,medicine ,Animals ,Humans ,Cytotoxicity ,Internalization ,Molecular Biology ,media_common ,Mesenchymal stem cell ,Skull ,Gene Transfer Techniques ,Mesenchymal Stem Cells ,Genetic Therapy ,Molecular biology ,Cell biology ,Rats ,Molecular Medicine ,Stem cell ,Bone Diseases - Abstract
Cell-permeable peptides (CPPs) promote the transduction of nonpermissive cells by recombinant adenovirus (rAd) to improve the therapeutic efficacy of rAd. In this study, branched oligomerization of CPPs significantly enhanced the transduction of human mesenchymal stem cells (MSCs) by rAd in a CPP type-independent manner. In particular, tetrameric CPPs increased transduction efficiency at 3000-5000-fold lower concentrations than did monomeric CPPs. Although branched oligomerization of CPPs also increases cytotoxicity, optimal concentrations of tetrameric CPPs required for maximum transduction are at least 300-1000-fold lower than those causing 50% cytotoxicity. Furthermore, although only approximately 60% of MSCs were maximally transduced at 500 muM of monomeric CPPs,95% of MSCs were transduced with 0.1 muM of tetrameric CPPs. Tetrameric CPPs also significantly increased the formation and net surface charge of CPP/rAd complexes, as well as the binding of rAd to cell membranes at a greater degree than did monomeric CPPs, followed by rapid internalization into MSCs. In a critical-size calvarial defect model, the inclusion of tetrameric CPPs in ex vivo transduction of rAd expressing bone morphogenetic protein 2 into MSCs promoted highly mineralized bone formation. In addition, MSCs that were transduced with rAd expressing brain-derived neurotrophic factor in the presence of tetrameric CPPs improved functional recovery in a spinal cord injury model. These results demonstrated the potential for tetrameric CPPs to provide an innovative tool for MSC-based gene therapy and for in vitro gene delivery to MSCs.
- Published
- 2010
14. International Commercial Arbitration and State Immunity KI Vibhute
- Author
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Lim, CL
- Published
- 2001
15. Metabolites from Actinomyces strain H6552 extract inhibit transforming growth factor-mediated pulmonary fibrosis
- Author
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Koh, RY, primary, Lim, CL, additional, Ho, CC, additional, Uhal, BD, additional, Abdullah, M, additional, Vidyadaran, S, additional, and Seow, HF, additional
- Published
- 2014
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16. Anatomical variations of the internal jugular veins and their relationship to the carotid arteries: A CT evaluation
- Author
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Lim, CL, primary, Keshava, SN, additional, and Lea, M, additional
- Published
- 2006
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17. Water versus carbohydrate-electrolyte fluid replacement during loaded marching under heat stress.
- Author
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Byrne C, Lim CL, Chew SAN, Ming ETY, Byrne, Christopher, Lim, Chin Leong, Chew, Serena Ai Neo, and Ming, Elaine Tan Yu
- Abstract
This study compared the effectiveness of carbohydrate-electrolyte (CHO-E) fluid replacement versus water (WAT) on hydration status, physiological and subjective responses, and exercise performance during a 3 x 60-minute loaded (14 kg) treadmill walk in 35 degrees C ambient temperature and 55% humidity. CHO-E did not affect urine loss, plasma volume change (WAT = -3.0 +/- 1.6% vs. CHO-E = -1.1 +/- 1.6%), dehydration (WAT = 0.4 +/- 0.3% vs. CHO-E = 0.4 +/- 0.3% of body mass), or core body temperature (Tc) and heart rate (HR) responses. Endurance time was greater but not significantly different with CHO-E (WAT = 134 +/- 9 vs. CHO-E = 146 +/- 9 minutes). CHO-E increased the frequency of task completion (WAT = 21% vs. CHO-E = 50%), elevated blood glucose, and reduced perceived exertion. CHO-E offers potential to enhance exercise capacity by elevating blood glucose and thereby preventing hypoglycemia, maintaining high rates of carbohydrate oxidation, and/or preventing central fatigue; but provided no additional benefits with regard to hydration status and physiological function during loaded walking under heat stress. [ABSTRACT FROM AUTHOR]
- Published
- 2005
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18. Book Review: A Landscape of Contemporary Theories of International Law
- Author
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Lim, CL
- Published
- 2021
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19. Chemistry of pyrrolic compounds. XXVIII. The synthesis of acrylic acid porphyrins: porphyrin mass spectra.
- Author
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Clezy, PS, Lim, Cl, and Shannon, JS
- Abstract
The synthesis and properties of a porphyrin substituted with acrylic ester side chains is described. Some aspects of the fragmentation of porphyrins in the doubly charged region of their mass spectra are discussed.
- Published
- 1974
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20. Chemistry of pyrrolic compounds. XXVII. Some aspects of the mass spectra and chemistry of meso-substituted porphyrins.
- Author
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Clezy, PS, Lim, Cl, and Shannon, JS
- Abstract
Characteristic fragmentations have been observed in the mass spectra of some meso-substituted porphyrins, and especially in some meso-oxy derivatives. meso-Substituted octaethylporphyrins generally underwent thermal decomposition in the mass spectrometer; this resulted in the formation of the parent porphyrin from which the successive loss of eight methyl radicals was observed. Attempts to prepare meso-carboxyoctaethylporphyrin by oxidation of the formyl derivative or by hydrolysis of the meso-cyano compound failed. As a by-product of the preparation of meso-cyano- octaethylporphyrin a porphyrin isocyanide was obtained. Some aspects of the chemistry of this novel porphyrin derivative are reported together with the preparation and properties of an oxyporphyrin substituted with acetic ester side chains.
- Published
- 1974
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21. Serum Cortisol and Cardiovascular Disease Risk-A Potential Biomarker.
- Author
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Oo WJ, Lim CL, Goh MH, and Koh RY
- Abstract
Cardiovascular Disease [CVD], the leading cause of death globally, poses a significant burden on the healthcare sector. Its association with stress and Cushing's Syndrome has driven cortisol, the 'stress hormone,' to be a potential candidate in determining CVD risk. Cortisol synthesis and release through the hypothalamic-pituitary-adrenal [HPA] axis are regulated by several hormones and receptors involved in the pathological cascade towards CVD. Evidence suggests that metabolic syndrome plays a major role in cortisol-mediated CVD risk. On the other hand, non-metabolic features are also implicated when the association between cortisol and CVD risk remains significant upon normalisation of metabolic parameters. Correspondingly, the treatment for hypercortisolism is often found effective in lowering CVD risk. Despite available evidence, several factors continue to hinder the clinical use of cortisol as a risk biomarker for CVD. This review provides an insight into the role of serum cortisol in CVD progression and risk, with emphasis on the mechanistic features and parameters., (Copyright© Bentham Science Publishers; For any queries, please email at epub@benthamscience.net.)
- Published
- 2025
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22. Performance of Risk-Stratification Scores for Patients With Pulmonary Arterial Hypertension in a Multi-Ethnic Asian Population.
- Author
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Jiang H, Tan JL, Ruan W, Hon JS, Ismail A, Lim CL, Perumal S, Koh M, Sewa DW, Phua GC, Oh YZ, Ng SA, Hong C, Low A, Lim ST, and Yap J
- Abstract
Guidelines recommend risk stratification of pulmonary arterial hypertension (PAH) patients to guide management. There are currently several risk stratification scores available, which have largely been validated in various pulmonary hypertension registries in the West but not in Asia. We aim to study the performance of these different risk scores in PAH patients from a multi-ethnic Asian population. A retrospective review of all PAH patients from Jan 2014 to Jun 2021 from a tertiary cardiac center was performed. Mortality outcomes were obtained from national registries. Using the 2022 ESC/ERS, REVEAL Lite 2.0 and COMPERA 2.0 risk scores, patients were classified into different risk strata at baseline and at follow-up and changes in any risk strata recorded. The prognosis of patients based on these factors was compared. A total of 153 patients (mean age: 57 ± 17 years; 117 women; 94 Chinese, 33 Malay, 19 Indian) were included. All three scores showed significant difference in mortality outcomes between the different risk strata both at baseline and at follow-up ( p < 0.05), with the highest risk group showing the highest mortality. Patients who worsened to or remained at intermediate/high-risk generally had a worse prognosis than those who remained stable at or improved to low-risk strata. The 2022 ESC/ERS and COMPERA 2.0 risk scores had C-statistics of 0.73 (0.58-0.88) and 0.80 (0.72-0.88), respectively, for predicting 1-year mortality. Serial risk stratification is a useful tool in prognosticating Asian PAH patients and may play an important role in guiding therapeutic management., Competing Interests: JY received speaker's honorarium from Abbott, Biosensors, Biotronik, Boston Scientific, Edwards, GE healthcare, J&J, Kaneka, Medtronic and Terumo. AL received consultancy fees and is on the advisory boards of Janssen and Boehringer‐Ingelheim, and is on the steering committee and received research grants from Boehringer‐Ingelheim. All other authors declare no conflicts of interest., (© 2024 The Author(s). Pulmonary Circulation published by Wiley Periodicals LLC on behalf of the Pulmonary Vascular Research Institute.)
- Published
- 2024
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23. The Evolution of Mechanical Properties and Cellular Structure of Apples During Freeze Drying Combined with Hot Air Drying (FD-HAD) Process.
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Li L, Yang M, Zhu L, Liu W, Li L, Cao W, Chen J, Zhao L, Law CL, Yang T, Ren G, and Duan X
- Abstract
Apples are one of the most popular fruits in the world and have a significant share in domestic and international fruit production. Drying is a common method used to extend the shelf life of apples. However, it also induces irregular morphological changes in apples, which are essential to maintaining the structural integrity of the material. Therefore, it is necessary to understand the effect of cellular changes at the microscopic level on the macroscopic deformation of the material during drying. In this paper, the evolution of cell wall pectin fractions and viscoelastic properties of apples during freeze drying combined with hot air drying was investigated. The findings indicated that during the HAD stage, a decrease in the relaxation modulus ( E
1 ) of the samples was observed in the compression tests when the sample temperature was significantly higher than the glass transition temperature ( Tg ). As the difference between the two decreased, the samples exhibited increased stiffness and higher E1 . The results of the pectin content analysis showed that the HAD process accelerated the loss and degradation of water-soluble pectin in the samples with high moisture content at the transition point. Simultaneously, the esterification degree of chelator-soluble pectin increased, leading to a reduction in the support provided to the cellular structure of the samples, which consequently affected their mechanical properties. These findings may provide valuable information for the application of freeze drying combined with hot air drying in the efficient processing of dried fruit and vegetable products.- Published
- 2024
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24. Toll-like receptor 13-mediated signaling protects against the development of colon cancer.
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Rafique A, Ali I, Kim S, Farooq A, Manzoor U, Moon J, Arooj M, Ahn M, Park Y, Hyun CL, and Koh YS
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- Animals, Mice, Colitis-Associated Neoplasms microbiology, Colitis-Associated Neoplasms pathology, Colitis-Associated Neoplasms metabolism, Mice, Inbred C57BL, Humans, Disease Models, Animal, Toll-Like Receptors metabolism, Male, Signal Transduction, Dextran Sulfate, Colonic Neoplasms microbiology, Colonic Neoplasms metabolism, Colonic Neoplasms pathology, Mice, Knockout
- Abstract
Appropriate host-microbiota interactions are essential for maintaining intestinal homeostasis; hence, an imbalance in these interactions leads to inflammation-associated intestinal diseases. Toll-like receptors (TLRs) recognize microbial ligands and play a key role in host-microbe interactions in health and disease. TLR13 has a well-established function in enhancing host defenses against pathogenic bacteria. However, its role in maintaining intestinal homeostasis and controlling colitis-associated colon cancer (CAC) is largely unknown. This study aimed to investigate the involvement of TLR13-mediated signaling in intestinal homeostasis and colonic tumorigenesis using ex vivo cell and in vivo CAC animal model. Tlr13-deficient mice were prone to dextran sodium sulfate (DSS)-induced colitis. During the early stages of the CAC regimen (AOM/DSS-treated), Tlr13 deficiency led to severe ulcerative colitis. Moreover, Tlr13-deficient mice exhibited increased intestinal permeability, as evidenced by elevated levels of fluorescein isothiocyanate (FITC)-dextran, endotoxins, and bacterial translocation. Enhanced cell survival and proliferation of colonic intestinal cells were observed in Tlr13-deficient mice. A transcriptome analysis revealed that Tlr13 deficiency is associated with substantial changes in gene expression profile of colonic tumor tissue. Tlr13-deficient mice were more susceptible to CAC, with increased production of interleukin (IL)-6, IL-12, and TNF-α cytokines and enhanced STAT3, NF-κB, and MAPK signaling in colon tissues. These findings suggest that TLR13 plays a protective role in maintaining intestinal homeostasis and controlling CAC. Our study provides a novel perspective on intestinal health via TLR13-mediated signaling, which is crucial for deciphering the role of host-microbiota interactions in health and disease., (© 2024 The Author(s). International Journal of Cancer published by John Wiley & Sons Ltd on behalf of UICC.)
- Published
- 2024
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25. Prevalence of childhood overweight and obesity in Malaysia: a systematic review and meta-analysis.
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Chua KY, Chua KY, Chinna K, Lim CL, and Seneviwickrama M
- Abstract
The incidence of childhood obesity is increasing worldwide. National surveys in Malaysia have shown similar trends. This review aimed to increase our understanding of the prevalence and associated factors of childhood overweight, obesity, and excess weight in Malaysia. A systemat-ic review and meta-analysis were conducted of studies reporting the prevalence of overweight and obesity in Malaysian children aged < 18 years. Systematic searches were conducted in Oc-tober 2023 and repeated in March 2024 of the PubMed, Scopus, and Web of Science databases. The grey literature was also included. Study selection, data extraction, and quality assessments were conducted by paired independent researchers. A meta-analysis of prevalence and 95% confidence interval (CI) using a random-effects model and heterogeneity (I2) was calculated. Publication bias was investigated using Egger's test. This review included 33 studies (N=273,710) conducted between 1996 and 2022. Overall, the childhood overweight, obesity and excess weight prevalence was 13.9% (95% confidence interval [CI], 13.0-14.8%), 11.8% (95% CI, 10.9-12.8%), and 24.0% (95% CI, 22.3-25.7%), respectively. Boys had a significant-ly higher proportion of obesity (12.5% [95% CI, 11.1-14.1%] vs. 9.1% [95% CI, 8.1-10.1%]) and excess weight (25.7% [95% CI, 23.5-28.1%] vs. 20.7% [95% CI, 18.8-22.8%]) than girls. Sarawak natives had a higher prevalence of obesity (17.7% [95% CI, 16.0-19.5%]). Annually, the obesity prevalence increased by 0.3% (95% CI, 0.1-0.6%; p=0.006) and excess weight prevalence increased by 0.6% (95% CI, 0.3-1.0%; p=0.002). Heterogeneity was high (I2>90%), and publication bias was possible (p<0.001). Variability was not significantly affected by the critical appraisal score or sample size. In conclusion, the prevalence of childhood overweight, obesity, and excess weight in Malaysia doubled over 26 years. Future studies of the prevalence of childhood excess weight should follow a standardized reference for body mass index by age to ease interstudy comparisons.
- Published
- 2024
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26. Expression of IL-7Rα low CX3CR1 + CD8 + T Cells and α4β7 Integrin Tagged T Cells Related to Mucosal Immunity in Children with Inflammatory Bowel Disease.
- Author
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Yang DH, Kim HJ, Dinh DTT, Yang J, Hyun CL, Jee Y, Lee N, Shin MS, Kang I, and Kang KS
- Abstract
Purpose: The study aimed to investigate the recruiting of T lymphocytes including IL-7Rα
low CX3CR1+ effector memory (EM) CD8+ T cells and α4β7 integrin tagged T cells to inflamed intestinal mucosa., Methods: Whole blood and mucosal tissues of intestine were collected from 40 children with or without inflammatory bowel disease (IBD). T cell surface staining and immunohistochemistry were done with several antibodies in peripheral blood mononuclear cells (PBMCs) and intestinal mucosa, respectively. Serum levels of cytokines were measured by ELISA., Results: The frequency of IL-7Rαlow CX3CR1+ EM CD8+ T cells in the PBMC was significantly higher in the ulcerative colitis group than in the control group (57.9±17.80% vs. 33.9±15.70%, p =0.021). The frequency of integrin α4β7+ CD4+ T cells in the PBMC was significantly lower in the ulcerative colitis group than in the control group (53.2±27.6% vs. 63.9±13.2%, p =0.022). Serum concentration of TNF-α was higher in the Crohn's disease group than in the control group (26.13±5.01 pg/mL vs. 19.65±6.07 pg/mL, p =0.008). Of the three groups, the ulcerative colitis group had the highest frequency of integrin α4β7+ T cells based on immunohistochemistry analyses for intestinal tissues, followed by the Crohn's disease group and the control group (4.63±1.29 cells vs. 2.0±0.57 cells vs. 0.84±0.52 cells, p <0.001)., Conclusion: Trafficking immune cells with effector memory CD8+ T cells clarified by IL-7Rαlow CX3CR1+ and integrin α4β7+ CD4+ T cells might be highly associated with the pathogenesis of ulcerative colitis., Competing Interests: Conflict of Interest: The authors have no financial conflicts of interest., (Copyright © 2024 by The Korean Society of Pediatric Gastroenterology, Hepatology and Nutrition.)- Published
- 2024
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27. Butin Protects Keratinocytes From Particulate Matter 2.5 and Ultraviolet B-Mediated Damages.
- Author
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Fernando PDSM, Piao MJ, Kang KA, Herath HMUL, Kim ET, Hyun CL, Kim YR, and Hyun JW
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- Humans, HaCaT Cells, Oxidative Stress drug effects, Oxidative Stress radiation effects, Reactive Oxygen Species metabolism, Lipid Peroxidation drug effects, Lipid Peroxidation radiation effects, Cell Survival drug effects, Cell Line, Ultraviolet Rays adverse effects, Particulate Matter adverse effects, Keratinocytes metabolism, Keratinocytes drug effects, Keratinocytes radiation effects, Keratinocytes pathology, Apoptosis drug effects, Apoptosis radiation effects, DNA Damage drug effects
- Abstract
Background: Butin is a naturally occurring compound with a wide range of medicinal properties, including anti-inflammatory, anti-arthritic, and antioxidant properties. Particulate matter 2.5 (PM
2.5 ) and ultraviolet B (UVB) radiation contribute to skin cell damage via the induction of oxidative stress., Methods: This study sought to assess the protective effects of butin against damage triggered by PM2.5 and UVB in human HaCaT keratinocytes. Assessments were performed to evaluate cell viability, apoptosis, and cellular component damage., Results: Butin exhibited its protective ability via the inhibition of PM2.5 -induced reactive oxygen species generation, lipid peroxidation, DNA damage, protein carbonylation, and mitochondrial damage. Butin reduced the PM2.5 -induced c-Fos and phospho-c-Jun protein levels as well as mitogen-activated protein kinase. Furthermore, butin mitigated PM2.5 - and UVB-induced apoptosis., Conclusion: Butin had the potential as a pharmaceutical candidate for treating skin damage caused by PM2.5 and UVB exposure., (© 2024 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.)- Published
- 2024
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28. 3D printing technology for prepared dishes: printing characteristics, applications, challenges and prospects.
- Author
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Guo J, Zhang M, Law CL, and Luo Z
- Subjects
- Humans, Fast Foods, Food Additives, Food Technology methods, Nutritive Value, Printing, Three-Dimensional, Food Handling methods
- Abstract
Prepared dishes are popular convenience foods that meet the needs of consumers who pursue delicious tastes while saving time and effort. As a new technology, food 3D printing (also known as food additive manufacturing technology) has great advantage in the production of personalized food. Applying food 3D printing technology in the production of prepared dishes provides the solution to microbial contamination, poor nutritional quality and product standardization. This review summarizes the problems faced by the prepared dishes industry in traditional food processing, and introduces the characteristics of prepared dishes and 3D printing technology. Food additives are suitable for 3D prepared dishes and novel 3D printing technologies are also included in this review. In addition, the challenges and possible solutions of the application of food 3D printing technology in the field of prepared dishes are summarized and explored. Food additives with advantages in heat stability, low temperature protection and bacteriostasis help to accelerate the application of 3D printing in prepared dishes industry. The combination of 3D printing technology with heat-assisted sources (microwave, laser) and non-heat-assisted sources (electrolysis, ultrasound) provides the possibility for the development of customized prepared dishes in the future, and also promotes more 3D food printing technologies for commercial use. It is noteworthy that these technologies are still at research stage, and there are challenges for the formulation design, the stability of printed ink storage, as well as implementation of customized nutrition for the elderly and children.
- Published
- 2024
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29. Study on Dynamic Characteristics of Resilient Mount Under Preload.
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Park SJ, Park B, Lee JY, Shin YH, Jeong CL, Kim SJ, and Kim K
- Abstract
Resilient mounts are essential for anti-vibration and shock absorption applications, making accurate predictions of their static and dynamic behaviors critical for effective design and mechanical performance. This study investigates static and dynamic characteristics of resilient mounts to predict their effects. Tension, compression, and shear tests were performed under quasi-static loading conditions to obtain stress-strain cycle curves. This study includes a review of the Yeoh hyperelastic model, which consists of three parameters, and discusses the calibration of these parameters to describe the hyperelastic material behavior. The parameters were validated through numerical analysis by comparing them with experimental results from quasi-static tests on the resilient mount. The dynamic behavior was further analyzed using modal analysis and frequency response simulations under various preload conditions. Results show that increasing preload significantly shifts the transmissibility curves and resonance peaks to lower frequencies. This study offers valuable insights into static and dynamic characteristics of resilient mounts, contributing to the design and optimization of vibration isolation systems for naval applications.
- Published
- 2024
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30. Beta diversity subcomponents of plant species turnover and nestedness reveal drivers of community assembly in a regenerating subtropical forest.
- Author
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Guclu C, Luk CL, Ashton LA, Abbas S, and Boyle MJW
- Abstract
Secondary forests represent a significant proportion of global forest cover, with over 70% of forests in East Asia classified as regenerating. While succession has been studied extensively in temperate systems, trajectories of subtropical succession remain poorly characterized in highly disturbed, urban-adjacent forests. Investigating the additive beta diversity components of turnover and nestedness may reveal community assembly mechanisms driving secondary succession. The present study investigates plant community assembly along a successional gradient from 7 to 70 years following the onset of succession in secondary subtropical forests in Hong Kong, China. Plant survey data for 28 plots were analysed, generating additive Simpsons turnover and nestedness beta diversity metrics. Dissimilarity matrices were generated and modelled as a function of environmental matrices including forest plant community age (years following onset of secondary succession), inter-community distance (metres), and soil moisture saturation (%) across three elevational bands using generalized dissimilarity models. Nonmetric multidimensional scaling of plant communities was conducted with Bray-Curtis dissimilarity matrices. Inter-community distance and successional age differentially influenced plant species turnover between lowland and Montane forest types. Models of nestedness found that plot age and soil moisture saturation were significant drivers of nestedness patterns in plant communities across elevational classes. Turnover represented a higher proportion of Sorensen beta diversity than nestedness, while ANOSIM found significant differentiation between plant communities at different successional stages. Turnover patterns suggest a deterministic model of community assembly, with strong patterns of species replacement between communities at fine spatial scales and successional stages, as well as clear compositional shifts between lowland and montane forest types. NMDS analysis and functional compositional assessments suggested a transition from early successional communities with a high proportion of shrub species, to later successional communities with a higher proportion of tree species, with an increase in species turnover with greater age dissimilarity., Competing Interests: The authors have no conflict of interest to declare., (© 2024 The Author(s). Ecology and Evolution published by John Wiley & Sons Ltd.)
- Published
- 2024
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31. Novel strategy for optimizing of corn starch-based ink food 3D printing process: Printability prediction based on BP-ANN model.
- Author
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Jiao X, Ren G, Law CL, Li L, Cao W, Luo Z, Pan L, Duan X, Chen J, and Liu W
- Subjects
- Ink, Rheology, Gels chemistry, Temperature, Printing, Three-Dimensional, Starch chemistry, Neural Networks, Computer, Zea mays chemistry
- Abstract
Although starch has been intensively studied as a raw material for 3D printing, the relationship between several important process parameters in the preparation of starch gels and the printing results is unclear. In this study, the relationship between different processing conditions and the gel printing performance of corn starch was evaluated by printing tests, rheological tests and low-field nuclear magnetic resonance (LF-NMR) tests, and a back-propagation artificial neural network (BP-ANN) model for predicting gel printing performance was developed. The results revealed that starch gels exhibited favorable printing performance when the gelatinization temperature ranged from 75 °C to 85 °C, and the starch content was maintained between 15 % and 20 %. The R
2 adj of the BP-ANN models were all reached 0.894, which indicated good predictive ability. The results of the study not only provide theoretical support for the application of corn starch gels in 3D food printing, but also present a novel approach for predicting the printing performance of related materials. This method contributes to the optimization of printing parameters, thereby enhancing printing efficiency and quality., 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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32. Fluoroscopy-Guided Percutaneous Transthoracic Pleural Forceps Biopsy in Patients With Exudative Pleural Effusion.
- Author
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Kim DR, Nam IC, Baek HJ, Kim JJ, Hwang IK, Lee JS, Kim DJ, Hyun CL, Park SE, and Song SW
- Subjects
- Humans, Male, Female, Aged, Fluoroscopy, Retrospective Studies, Pleural Effusion pathology, Pleural Effusion diagnostic imaging, Middle Aged, Aged, 80 and over, Pleura pathology, Pleura diagnostic imaging, Radiography, Interventional methods, Pleural Effusion, Malignant pathology, Pleural Effusion, Malignant diagnostic imaging, Image-Guided Biopsy methods, Sensitivity and Specificity
- Abstract
Objective: This study aimed to evaluate the diagnostic performance and procedural characteristics of fluoroscopy-guided percutaneous transthoracic pleural forceps biopsy (PTPFB) in patients with exudative pleural effusion., Materials and Methods: Patients with exudative pleural effusion who underwent PTPFB between May 1, 2014, and February 28, 2023, were included in this retrospective study. The interval between percutaneous catheter drainage (PCD) and PTPFB, number of biopsies, procedural time, and procedure-related complications were evaluated. The sensitivity, specificity, and accuracy of diagnosing malignancy were computed for pleural cytology using PCD drainage, PTPFB, and combined PTPFB and pleural cytology., Results: Seventy-one patients, comprising 50 male and 21 female (mean age, 69.5 ± 15.3 years), were included in this study. The final diagnoses were benign lesions in 48 patients (67.6%) and malignant in 23 patients (32.4%). The overall interval between PCD and biopsy was 2.4 ± 3.7 days. The interval between PCD and biopsy in the group that underwent delayed PTPFB was 5.2 ± 3.9 days. The mean number of biopsies was 4.5 ± 1.3. The mean procedural time was 4.4 ± 2.1 minutes. Minor bleeding complications were reported in one patient (1.4%). The sensitivity, specificity, and accuracy for pleural cytology, PTPFB, and combined PTPFB and pleural cytology were 47.8% (11/23), 100% (48/48), and 83.1% (59/71), respectively; 65.2% (15/23), 100% (48/48), and 88.7% (63/71), respectively; and 78.3% (18/23), 100% (48/48), and 93.0% (66/71), respectively. The sensitivity and accuracy of cytology combined with PTPFB were significantly higher than those of cytological testing alone ( P = 0.008 and 0.001, respectively)., Conclusion: Fluoroscopy-guided PTPFB is an accurate and safe diagnostic technique for patients with exudative pleural effusion, with acceptable diagnostic performance, low complication rates, and reasonable procedural times., Competing Interests: The authors have no potential conflicts of interest to disclose., (Copyright © 2024 The Korean Society of Radiology.)
- Published
- 2024
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33. Expansion of tumor-infiltrating lymphocytes in non-small cell lung cancer: Clinical potential and efficacy in EGFR mutation subsets.
- Author
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Lee H, Lee M, Lim CL, Park HS, Song IH, Jeong BK, Kim DK, Kim YH, Choi S, Lee GD, Lee SB, Jung S, Gong G, Kim SB, Yoo C, Kim JY, and Lee HJ
- Subjects
- Humans, Animals, Female, Male, Middle Aged, Aged, Mice, Interferon-gamma genetics, Interferon-gamma immunology, Adult, Carcinoma, Non-Small-Cell Lung genetics, Carcinoma, Non-Small-Cell Lung immunology, Carcinoma, Non-Small-Cell Lung pathology, Lymphocytes, Tumor-Infiltrating immunology, Lung Neoplasms genetics, Lung Neoplasms immunology, Lung Neoplasms pathology, ErbB Receptors genetics, ErbB Receptors immunology, Mutation
- Abstract
Our study aimed to expand tumor-infiltrating lymphocytes (TILs) from primary non-small cell lung cancers (NSCLCs) and evaluate their reactivity against tumor cells. We expanded TILs from 103 primary NSCLCs using histopathological analysis, flow cytometry, IFN-γ release assays, cell-mediated cytotoxicity assays, and in vivo efficacy tests. TIL expansion was observed in all cases, regardless of EGFR mutation status. There was also an increase in the median CD4
+ /CD8+ ratio during expansion. In post-rapid expansion protocol (REP) TILs, 13 out of 16 cases, including all three cases with EGFR mutations, exhibited a two-fold or greater increase in IFN-γ secretion. The cytotoxicity assay revealed enhanced tumor cell death in three of the seven cases, two of which had EGFR mutations. In vivo functional testing in a patient-derived xenograft model showed a reduction in tumor volume. The anti-tumor activity of post-REP TILs underscores their potential as a therapeutic option for advanced NSCLC, irrespective of mutation status., Competing Interests: Declaration of competing interest HSP and CLL were employees of NeogenTC during this study. CLL and HJL are co-founders of NeogenTC. GG received research support from NeogenTC., (Copyright © 2024. Published by Elsevier Inc.)- Published
- 2024
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34. Hyperoside reduced particulate matter 2.5-induced endoplasmic reticulum stress and senescence in skin cells.
- Author
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Fernando PDSM, Piao MJ, Herath HMUL, Kang KA, Hyun CL, Kim ET, Koh YS, and Hyun JW
- Subjects
- Humans, Cell Line, Cell Proliferation drug effects, Cell Cycle drug effects, HaCaT Cells, Antioxidants pharmacology, Skin drug effects, Skin metabolism, Skin cytology, Endoplasmic Reticulum Stress drug effects, Particulate Matter toxicity, Cellular Senescence drug effects, Quercetin pharmacology, Quercetin analogs & derivatives, Keratinocytes drug effects
- Abstract
Particulate matter 2.5 (PM
2.5 ) causes skin aging, inflammation, and impaired skin homeostasis. Hyperoside, a flavanol glycoside, has been proposed to reduce the risk of diseases caused by oxidative stress. This study evaluated the cytoprotective potential of hyperoside against PM2.5 -induced skin cell damage. Cultured human HaCaT keratinocytes were pretreated with hyperoside and treated with PM2.5 . Initially, the cytoprotective and antioxidant ability of hyperoside against PM2.5 was evaluated. Western blotting was further employed to investigate endoplasmic reticulum (ER) stress and cellular senescence and for evaluation of cell cycle regulation-related proteins. Hyperoside inhibited PM2.5 -mediated ER stress as well as mitochondrial damage. Colony formation assessment confirmed that PM2.5 -impaired cell proliferation was restored by hyperoside. Moreover, hyperoside reduced the activation of PM2.5 -induced ER stress-related proteins, such as protein kinase R-like ER kinase, cleaved activating transcription factor 6, and inositol-requiring enzyme 1. Hyperoside promoted cell cycle progression in the G0 /G1 phase by upregulating the PM2.5 -impaired cell cycle regulatory proteins. Hyperoside significantly reduced the expression of PM2.5 -induced senescence-associated β-galactosidase and matrix metalloproteinases (MMPs), such as MMP-1 and MMP-9. Overall, hyperoside ameliorated PM2.5 -impaired cell proliferation, ER stress, and cellular senescence, offering potential therapeutic implications for mitigating the adverse effects of environmental pollutants on skin health., 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 The Authors. Published by Elsevier Ltd.. All rights reserved.)- Published
- 2024
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35. Prospecting bioactivity in Antarctic algae: A review of extracts, isolated compounds and their effects.
- Author
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Lim MCX, Loo CT, Wong CY, Lee CS, Koh RY, Lim CL, Kok YY, and Chye SM
- Subjects
- Antarctic Regions, Anti-Inflammatory Agents pharmacology, Anti-Inflammatory Agents isolation & purification, Humans, Anti-Infective Agents pharmacology, Anti-Infective Agents isolation & purification, Antineoplastic Agents pharmacology, Antineoplastic Agents isolation & purification, Biological Products pharmacology, Biological Products isolation & purification, Molecular Structure, Antioxidants pharmacology, Antioxidants isolation & purification
- Abstract
Algae and its metabolites have been a popular subject of research in numerous fields over the years. Various reviews have been written on algal bioactive components, but a specific focus on Antarctic-derived algae is seldom reviewed. Due to the extreme climate conditions of Antarctica, it is hypothesized that the acclimatized algae may have given rise to a new set of bioactive compounds as a result of adaptation. Although most studies done on Antarctic algae are based on ecological and physiological studies, as well as in the field of nanomaterial synthesis, some studies point out the potential therapeutic properties of these compounds. As an effort to shed light on a different application of Antarctic algae, this review focuses on evaluating its different medicinal properties, including antimicrobial, anticancer, antioxidative, anti-inflammatory, and skin protective effects., Competing Interests: Declaration of competing interest None., (Copyright © 2023. Published by Elsevier B.V.)
- Published
- 2024
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36. Natural Bioactive Compounds from Macroalgae and Microalgae for the Treatment of Alzheimer's Disease: A Review.
- Author
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Lee JY, Wong CY, Koh RY, Lim CL, Kok YY, and Chye SM
- Subjects
- Humans, Animals, Neuroprotective Agents pharmacology, Neuroprotective Agents therapeutic use, Biological Products pharmacology, Biological Products therapeutic use, Biological Products isolation & purification, Antioxidants pharmacology, Alzheimer Disease drug therapy, Alzheimer Disease metabolism, Microalgae chemistry, Microalgae metabolism, Seaweed chemistry
- Abstract
Neuroinflammation, toxic protein aggregation, oxidative stress, and mitochondrial dysfunction are key pathways in neurodegenerative diseases like Alzheimer's disease (AD). Targeting these mechanisms with antioxidants, anti-inflammatory compounds, and inhibitors of Aβ formation and aggregation is crucial for treatment. Marine algae are rich sources of bioactive compounds, including carbohydrates, phenolics, fatty acids, phycobiliproteins, carotenoids, fatty acids, and vitamins. In recent years, they have attracted interest from the pharmaceutical and nutraceutical industries due to their exceptional biological activities, which include anti-inflammation, antioxidant, anticancer, and anti-apoptosis properties. Multiple lines of evidence have unveiled the potential neuroprotective effects of these multifunctional algal compounds for application in treating and managing AD. This article will provide insight into the molecular mechanisms underlying the neuroprotective effects of bioactive compounds derived from algae based on in vitro and in vivo models of neuroinflammation and AD. We will also discuss their potential as disease-modifying and symptomatic treatment strategies for AD., (Copyright ©2024, Yale Journal of Biology and Medicine.)
- Published
- 2024
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37. Different wavelengths of LED irradiation promote secondary metabolite production in Pycnoporus sanguineus for antioxidant and immunomodulatory applications.
- Author
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Lim CL, Yang CH, Pan XY, Tsai HY, Chen CY, and Chen WL
- Subjects
- Mice, Animals, RAW 264.7 Cells, Immunologic Factors pharmacology, Immunologic Factors chemistry, Lipopolysaccharides pharmacology, Lipopolysaccharides antagonists & inhibitors, Picrates antagonists & inhibitors, Picrates chemistry, Immunomodulating Agents pharmacology, Immunomodulating Agents chemistry, Biphenyl Compounds antagonists & inhibitors, Biphenyl Compounds chemistry, Biphenyl Compounds pharmacology, Antioxidants pharmacology, Antioxidants chemistry, Antioxidants metabolism, Light, Pycnoporus metabolism
- Abstract
Pycnoporus sanguineus is a fungus of the phylum Basidiomycota that has many applications in traditional medicine, modern pharmaceuticals, and agricultural industries. Light plays an essential role in the metabolism, growth, and development of fungi. This study evaluated the mycelial growth and antioxidant and anti-inflammatory activities in P. sanguineus fermentation broth (PFB) cultured under different wavelengths of LED irradiation or in the dark. Compared to the dark cultures, the dry weight of mycelia in red- and yellow-light cultures decreased by 37 and 35% and the yields of pigments increased by 30.92 ± 2.18 mg and 31.75 ± 3.06 mg, respectively. Compared with the dark culture, the DPPH free radical scavenging ability, ABTS
+ free radical scavenging capacity, and reducing power of yellow-light cultures increased significantly, and their total phenolic content peaked at 180.0 ± 8.34 μg/mL. However, the reducing power in blue-light cultures was significantly reduced, though the total phenol content did not vary with that of dark cultures. In LPS- and IFN-γ-stimulated RAW 264.7 cells, nitrite release was significantly reduced in the red and yellow light-irradiated PFB compared with the dark culture. In the dark, yellow-, and green-light cultures, TNF-α production in the inflamed RAW 264.7 cells was inhibited by 62, 46, and 14%, respectively. With red-, blue-, and white-light irradiation, TNF-α production was significantly enhanced. Based on these results, we propose that by adjusting the wavelength of the light source during culture, one can effectively modulate the growth, development, and metabolism of P. sanguineus., (© 2024. The Author(s), under exclusive licence to the European Photochemistry Association, European Society for Photobiology.)- Published
- 2024
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38. Expansion of tumor-infiltrating lymphocytes from head and neck squamous cell carcinoma to assess the potential of adoptive cell therapy.
- Author
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Choi S, Hossain M, Lee H, Baek J, Park HS, Lim CL, Han D, Park T, Kim JH, Gong G, Kweon MN, and Lee HJ
- Subjects
- Humans, Lymphocytes, Tumor-Infiltrating, Squamous Cell Carcinoma of Head and Neck therapy, Adoptive Transfer, Immunotherapy, Adoptive, Head and Neck Neoplasms therapy
- Abstract
Background: Adoptive transfer of in vitro expanded tumor-infiltrating lymphocytes (TILs) has been effective in regressing several types of malignant tumors. This study assessed the yield and factors influencing the successful expansion of tumor-infiltrating lymphocytes (TILs) from head and neck squamous cell carcinoma (HNSCC), along with their immune phenotypes., Methods: TILs were expanded from 47 surgically resected HNSCC specimens and their metastasized lymph nodes. The cancer tissues were cut into small pieces (1-2 mm) and underwent initial expansion for 2 weeks. Tumor location, smoking history, stromal TIL percentage, human papillomavirus infection, and programmed death-ligand 1 score were examined for their impact on successful expansion of TILs. Expanded TILs were evaluated by flow cytometry using fluorescence-activated cell sorting. A second round of TIL expansion following the rapid expansion protocol was performed on a subset of samples with successful TIL expansion., Results: TILs were successfully expanded from 36.2% samples. Failure was due to contamination (27.6%) or insufficient expansion (36.2%). Only the stromal TIL percentage was significantly associated with successful TIL expansion (p = 0.032). The stromal TIL percentage also displayed a correlation with the expanded TILs per fragment (r = 0.341, p = 0.048). On flow cytometry analysis using 13 samples with successful TIL expansion, CD4 + T cell dominancy was seen in 69.2% of cases. Effector memory T cells were the major phenotype of expanded CD4 + and CD8 + T cells in all cases., Conclusion: We could expand TILs from approximately one-third of HNSCC samples. TIL expansion could be applicable in HNSCC samples with diverse clinicopathological characteristics., (© 2024. The Author(s).)
- Published
- 2024
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39. Naringenin Induces Cellular Apoptosis in Melanoma Cells via Intracellular ROS Generation.
- Author
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Fernando PDSM, Zhen AX, Piao MJ, Herath HMUL, Kang KA, Yoon SP, Boo HJ, Hyun CL, and Hyun JW
- Subjects
- Humans, Reactive Oxygen Species metabolism, Cell Line, Tumor, Apoptosis, Proto-Oncogene Proteins c-bcl-2 metabolism, Membrane Potential, Mitochondrial, Melanoma pathology, Flavanones
- Abstract
Background/aim: Melanoma is a prevalent malignant tumor that arises from melanocytes. The treatment of malignant melanoma has become challenging due to the development of drug resistance. It is, therefore, imperative to identify novel therapeutic drug candidates for controlling malignant melanoma. Naringenin is a flavonoid abundant in oranges and other citrus fruits and recognized for its numerous medicinal benefits. The objective of the study was to assess the anti-carcinogenic potential of naringenin by evaluating its ability to regulate the cellular production of reactive oxygen species (ROS) and its effect on mitochondrial function and apoptosis in melanoma cells., Materials and Methods: Cell viability, intracellular ROS levels, cell apoptosis, and mitochondrial functions were evaluated., Results: Naringenin decreased melanoma cell viability and triggered generation of ROS, leading to cell apoptosis. In addition, it stimulated mitochondrial damage in melanoma cells by elevating the levels of Ca
2+ and ROS in the mitochondria and decreasing cellular ATP. Naringenin stimulated the expression of proapoptotic proteins, including phospho p53, B-cell lymphoma-2 (Bcl-2)-associated X protein, cleaved caspase-3, and cleaved caspase-9, in melanoma cells in a time-dependent manner. Furthermore, it reduced the expression of the anti-apoptotic protein Bcl-2. Naringenin triggered cell apoptosis by phosphorylating c-Jun N-terminal kinase and stimulating cellular autophagy., Conclusion: Naringenin caused oxidative stress and mitochondrial damage, and activated autophagy in melanoma cells, leading to cell apoptosis. These findings indicate the potential of naringenin as a new therapeutic candidate for melanoma., (Copyright © 2024 International Institute of Anticancer Research (Dr. George J. Delinasios), All rights reserved.)- Published
- 2024
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40. Natural deep eutectic solvents for the extraction of lentinan from shiitake mushroom: COSMO-RS screening and ANN-GA optimizing conditions.
- Author
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Wang D, Zhang M, Law CL, and Zhang L
- Subjects
- Lentinan, Solvents, Water, Deep Eutectic Solvents, Shiitake Mushrooms
- Abstract
Using natural deep eutectic solvents (NDES) for green extraction of lentinan from shiitake mushroom is a high-efficiency method. However, empirical and trial-and-error methods commonly used to select suitable NDES are unconvincing and time-consuming. Conductor-like screening model for realistic solvation (COSMO-RS) is helpful for the priori design of NDES by predicting the solubility of biomolecules. In this study, 372 NDES were used to evaluate lentinan dissolution capability via COSMO-RS. The results showed that the solvent formed by carnitine (15 wt%), urea (40.8 wt%), and water (44.2 wt%) exhibited the best performance for the extraction of lentinan. In the extraction stage, an artificial neural network coupled with genetic algorithm (ANN-GA) was developed to optimize the extraction conditions and to analyze their interaction effects on lentinan content. Therefore, COSMO-RS and ANN-GA can be used as powerful tools for solvent screening and extraction process optimization, which can be extended to various bioactive substance extraction., 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 © 2023 Elsevier Ltd. All rights reserved.)
- Published
- 2024
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41. Mucosal Immunity Related to CD8 + T Lymphocytes in Children with Helicobacter pylori Gastritis.
- Author
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Yang DH, Lee HY, Choi W, Hyun CL, and Kang KS
- Abstract
Purpose: We investigated the role of CD8
+ T cells as host immune factors in pediatric patients with Helicobacter pylori gastritis., Methods: Gastric mucosal tissue and blood samples were collected from 39 children, including 11 children with H. pylori infection and 28 children as controls. Anti-CD8 and anti-T-bet antibodies were used for immunohistochemistry of the gastric mucosa. For the cell surface and intracellular staining, peripheral blood mononuclear cells were stained with anti-IL7Rα, anti-CX3CR1, anti-CD8, anti-T-bet, and anti-IFN-γ antibodies. Cytokines of sera such as tumor necrosis factor alpha (TNF-α) and CX3CL1 were analyzed using enzyme- linked immunosorbent assay (ELISA)., Results: In the immunohistochemistry of gastric mucosa, the frequency of CD8+ and T-bet+ T cells cells was higher in the H. pylori -positive group than in the control group (26.9± 7.8% vs. 16.9±3.3%, p <0.001; 5.0±2.5% vs. 2.2±0.7%, p =0.001). Between the control and H. pylori -positive groups, the frequency of IL-7Rαlow CX3CR1+ CD8+ and T-bet+ INF-γ+ CD8+ T cells were not significantly different between surface and intracellular staining, respectively (40.4±24.0% vs. 38.2±17.8%, p =0.914; 40.4±24.0% vs. 38.2±17.8%, p =0.914). In the ELISA, no significant differences in TNF-α and CX3CL1 concentrations were observed between the control and H. pylori -positive groups (34.3±12.1 pg/mL vs. 47.0±22.6 pg/mL, p =0.114/0.5± 0.1 pg/mL vs. 0.5±0.1 pg/mL, p =0.188)., Conclusion: CD8+ T and Th1 cells, which secrete IFN-γ, might play important roles in the mucosal immunity of the stomach in children with H. pylori infection., Competing Interests: Conflict of Interest: The authors have no financial conflicts of interest., (Copyright © 2024 by The Korean Society of Pediatric Gastroenterology, Hepatology and Nutrition.)- Published
- 2024
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42. The feasibility of distance to the tumor of biopsy cores to estimate the extracapsular extension.
- Author
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Hyun CL and Park KK
- Abstract
Background: To investigate the predictive capability of a new parameter, the distance between the fibromuscular capsule and the tumor as measured using a prostate biopsy core (referred to as "distance to the tumor" [DTT]), for the presence of extracapsular extension (ECE)., Materials and Methods: We analyzed specimens obtained from 246 patients diagnosed with prostate cancer. All patients underwent prebiopsy, prostate magnetic resonance imaging (MRI), and subsequent prostatectomy. DTT measurements were obtained for each prostate biopsy core, and the minimum (min) DTT was extracted. We assessed the relationship between min DTT, MRI-estimated ECE, and pathological ECE, considering factors such as the PI-RADS score and tumor location., Results: In this study of 246 patients, the mean age was 65.8 years, and the mean prostate-specific antigen (PSA) level was 18.9 ng/ml. Patients with suspicious lesions in the peripheral zone and pathological ECE displayed higher rates of positive digital rectal examination (DRE), elevated PSA levels, and shorter DTT values in the biopsy cores. DTT demonstrated an accurate estimation of the presence of ECE, similar to MRI findings. Min DTT exhibited higher accuracy for peripheral zone masses, with a cutoff value of 1.0 mm for min DTT predicting ECE (AUC: 0.84, sensitivity: 72.23%, specificity: 77.78%, P < 0.01). Of the 246 patients, 66 had no ECE on MRI; however, 18 of these patients displayed pathological ECE, with 14 having DTT values <1.0 mm., Conclusions: Min DTT, positive DRE results, and a higher Gleason grade were significantly associated with ECE. DTT measurements of <1 mm can provide a more accurate prediction of ECE in the peripheral zone of the prostate than MRI-based assessments., Competing Interests: The authors have nothing to disclose., (© 2023 The Asian Pacific Prostate Society. Published by Elsevier B.V.)
- Published
- 2023
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43. Litter traps: A comparison of four marine habitats as sinks for anthropogenic marine macro-litter in Singapore.
- Author
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Fong J, Lee SHR, Sun Y, Lim CL, Tan YAJ, Tan YH, and Neo ML
- Subjects
- Singapore, Wetlands, Biodiversity, Plastics, Waste Products, Environmental Monitoring methods, Ecosystem, Coral Reefs
- Abstract
The potential for marine litter being trapped in biodiverse marine habitats such as mangrove forests, seagrass meadows and coral reefs is poorly understood. This study presents the first comprehensive investigation on the status of macro-litter across four marine habitats in Singapore during the two monsoonal seasons. Overall, litter density did not vary considerably between the southwest and the northeast monsoon. The litter density in terms of count was generally lower in seagrass meadows and coral reefs compared to mangroves and beaches. Plastic was the major type of litter found across most habitat types. Notably, many fishing-related items were found on coral reefs, while drinking straws were abundant at the mangrove strandlines during the southwest monsoon. Foam fragments and cigarette butts were common at the beach strandlines. These results suggest that mangroves among other habitats examined here should be prioritised for clean-up efforts in order to restore these critical coastal habitats., 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 © 2023 Elsevier Ltd. All rights reserved.)
- Published
- 2023
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- View/download PDF
44. Injectable tissue prosthesis for instantaneous closed-loop rehabilitation.
- Author
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Jin S, Choi H, Seong D, You CL, Kang JS, Rho S, Lee WB, Son D, and Shin M
- Subjects
- Animals, Rats, Electric Conductivity, Gold chemistry, Metal Nanoparticles chemistry, Muscles injuries, Muscles innervation, Robotics, Biocompatible Materials administration & dosage, Biocompatible Materials chemistry, Biocompatible Materials therapeutic use, Hydrogels administration & dosage, Hydrogels chemistry, Hydrogels therapeutic use, Prostheses and Implants, Wounds and Injuries rehabilitation, Wounds and Injuries surgery
- Abstract
To construct tissue-like prosthetic materials, soft electroactive hydrogels are the best candidate owing to their physiological mechanical modulus, low electrical resistance and bidirectional stimulating and recording capability of electrophysiological signals from biological tissues
1,2 . Nevertheless, until now, bioelectronic devices for such prostheses have been patch type, which cannot be applied onto rough, narrow or deep tissue surfaces3-5 . Here we present an injectable tissue prosthesis with instantaneous bidirectional electrical conduction in the neuromuscular system. The soft and injectable prosthesis is composed of a biocompatible hydrogel with unique phenylborate-mediated multiple crosslinking, such as irreversible yet freely rearrangeable biphenyl bonds and reversible coordinate bonds with conductive gold nanoparticles formed in situ by cross-coupling. Closed-loop robot-assisted rehabilitation by injecting this prosthetic material is successfully demonstrated in the early stage of severe muscle injury in rats, and accelerated tissue repair is achieved in the later stage., (© 2023. The Author(s), under exclusive licence to Springer Nature Limited.)- Published
- 2023
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45. Pectin-interactions and the digestive stability of anthocyanins in thermal and non-thermal processed strawberry pulp.
- Author
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Xing Y, Wang K, Zhang M, Law CL, Lei H, Wang J, and Xu H
- Subjects
- Anthocyanins chemistry, Pectins chemistry, Digestion, Structure-Activity Relationship, Water chemistry, Fragaria
- Abstract
This study investigated the digestive stability of anthocyanins (ACNs) and their interaction with three pectin fractions-water-soluble pectin (WSP), cyclohexanetrans-1,2-diamine tetra-acetic acid-soluble pectin (CSP), and sodium carbonate-soluble pectin (NSP)-in strawberry pulp processed by pasteurization (PS), ultrasound (US), electron beam (EB) irradiation, and high pressure (HP). Compared with the control group, the ACNs content increased to the highest level (312.89 mg/mL), but the retention rate of ACNs in the simulated intestine decreased significantly after US treatment. The monosaccharide compositions indicated that the WSP and CSP possessed more homogalacturonan (HG) domains than the NSP, which contains more rhamngalacturonan-I (RG-I) domains. The microstructure of US-treated pectin was damaged and fragmented. Comprehensive analysis showed that the retention rate of ACNs was closely related to the pectin structure, primarily reflected by the degree of linearity and the integrity of structure. These results revealed the structure-activity relationship between ACNs and pectin during pulp processing., 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 © 2023 Elsevier Ltd. All rights reserved.)
- Published
- 2023
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46. Cdon ablation in motor neurons causes age-related motor neuron degeneration and impaired sciatic nerve repair.
- Author
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Kim S, An S, Lee J, Jeong Y, You CL, Kim H, Bae JH, Yun CE, Ryu D, Bae GU, and Kang JS
- Abstract
Background: The functional deterioration and loss of motor neurons are tightly associated with degenerative motor neuron diseases and aging-related muscle wasting. Motor neuron diseases or aging-related muscle wasting in turn contribute to increased risk of adverse health outcomes in the elderly. Cdon (cell adhesion molecule-downregulated oncogene) belongs to the immunoglobulin superfamily of cell adhesion molecule and plays essential roles in multiple signalling pathways, including sonic hedgehog (Shh), netrin, and cadherin-mediated signalling. Cdon as a Shh coreceptor plays a critical role in motor neuron specification during embryonic development. However, its role in adult motor neuron function is unknown., Methods: Hb9-Cre recombinase-driven motor neuron-specific Cdon deficient mice (mnKO) and a compound mutant mice (mnKO::SOD1
G93A ) were generated to investigate the role of Cdon in motor neuron degeneration. Motor neuron regeneration was examined by using a sciatic nerve crush injury model. To investigate the phenotype, physical activity, compound muscle action potential, immunostaining, and transmission electron microscopy were carried out. In the mechanism study, RNA sequencing and RNA/protein analyses were employed., Results: Mice lacking Cdon in motor neurons exhibited middle age onset lethality and aging-related decline in motor function. In the sciatic nerve crush injury model, mnKO mice exhibited an impairment in motor function recovery evident by prolonged compound muscle action potential duration (4.63 ± 0.35 vs. 3.93 ± 0.22 s for f/f, P < 0.01) and physical activity. Consistently, neuromuscular junctions of mnKO muscles were incompletely occupied (49.79 ± 5.74 vs. 79.39 ± 3.77% fully occupied neuromuscular junctions for f/f, P < 0.0001), suggesting an impaired reinnervation. The transmission electron microscopy analysis revealed that mnKO sciatic nerves had smaller axon diameter (0.88 ± 0.13 vs. 1.43 ± 0.48 μm for f/f, P < 0.0001) and myelination defects. RNA sequencing of mnKO lumbar spinal cords showed alteration in genes related to neurogenesis, inflammation and cell death. Among the altered genes, ErbB4 and FgfR expressions were significantly altered in mnKO as well as in Cdon-depleted NSC34 motor neuron cells. Consistently, Cdon-depleted NSC34 cells exhibited elevated levels of cleaved Caspase3 and γH2AX proteins, as well as Bax transcription. Cdon-depleted NSC34 cells also exhibited impaired activation of Akt in response to neuregulin-1 (NRG1) treatment., Conclusions: Our current data demonstrate the functional importance of Cdon in motor neuron function and nerve repair. Cdon ablation causes alterations in neurotrophin signalling that leads to motor neuron degeneration., (© 2023 The Authors. Journal of Cachexia, Sarcopenia and Muscle published by Wiley Periodicals LLC.)- Published
- 2023
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47. Trichofolliculoma of the Nasal Vestibule.
- Author
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Park BS, Hyun CL, and Chang SW
- Abstract
Competing Interests: Declaration of Conflicting InterestsThe author(s) declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.
- Published
- 2023
- Full Text
- View/download PDF
48. Inonotus obliquus upregulates muscle regeneration and augments function through muscle oxidative metabolism.
- Author
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You CL, Lee SJ, Lee J, Vuong TA, Lee HY, Jeong SY, Alishir A, Walker AS, Bae GU, Kim KH, and Kang JS
- Subjects
- Mice, Animals, Muscle, Skeletal metabolism, Muscular Atrophy etiology, Muscular Atrophy metabolism, Muscular Atrophy pathology, Oxidative Stress, Dexamethasone pharmacology, Peroxisome Proliferator-Activated Receptor Gamma Coactivator 1-alpha metabolism, Proto-Oncogene Proteins c-akt metabolism, Cardiovascular Diseases metabolism
- Abstract
Skeletal muscle wasting related to aging or pathological conditions is critically associated with the increased incidence and prevalence of secondary diseases including cardiovascular diseases, metabolic syndromes, and chronic inflammations. Much effort is made to develop agents to enhance muscle metabolism and function. Inonotus obliquus ( I . obliquus ; IO) is a mushroom popularly called chaga and has been widely employed as a folk medicine for inflammation, cardiovascular diseases, diabetes, and cancer in Eastern Europe and Asia. However, its effect on muscle health has not been explored. Here, we aimed to investigate the beneficial effect of IO extract in muscle regeneration and metabolism. The treatment of IO in C2C12 myoblasts led to increased myogenic differentiation and alleviation of dexamethasone-induced myotube atrophy. Network pharmacological analysis using the identified specific chemical constituents of IO extracts predicted protein kinase B (AKT)-dependent mechanisms to promote myogenesis and muscle regeneration. Consistently, IO treatment resulted in the activation of AKT, which suppressed muscle-specific ubiquitin E3 ligases induced by dexamethasone. IO treatment in mice improved the regeneration of cardiotoxin-injured muscles accompanied by elevated proliferation and differentiation of muscle stem cells. Furthermore, it elevated the mitochondrial content and muscle oxidative metabolism accompanied by the induction of peroxisome proliferator-activated receptor γ coactivator α (PGC-1α). Our current data suggest that IO is a promising natural agent in enhancing muscle regenerative capacity and oxidative metabolism thereby preventing muscle wasting., Competing Interests: Competing Interests: The authors have declared that no competing interest exists., (© The author(s).)
- Published
- 2023
- Full Text
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49. Real-world genomic testing and treatment patterns of newly diagnosed adult acute myeloid leukemia patients within a comprehensive health system.
- Author
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Byrd JC, Gatz JL, Louis CL, Mims AS, Borate U, Yocum AO, Gana TJ, and Burd A
- Subjects
- Humans, Adult, Adolescent, Aged, Retrospective Studies, Prognosis, Mutation, Genetic Testing, Nucleophosmin, Leukemia, Myeloid, Acute diagnosis, Leukemia, Myeloid, Acute drug therapy, Leukemia, Myeloid, Acute genetics
- Abstract
Background: We evaluated the frequency of genomic testing and treatment patterns by age category in patients with newly diagnosed (ND) acute myeloid leukemia (AML) treated in both academic- and community-based health systems within a single Midwestern State., Methods: Retrospective analysis of data from the Indiana University Health System Enterprise Data Warehouse and two local cancer registries, of 629 patients aged ≥18 years with ND AML during 2011-2018. Primary outcome variables were, proportion of patients with genomic analysis and frequency of mutations. Chemotherapy was categorized as "standard induction" or "other chemotherapy"/targeted therapy, and hypomethylating agents., Results: Overall, 13% of ND AML patients between 2011 and 2018 had evidence of a genomic sequencing report with a demonstrated increase to 37% since 2016. Genomic testing was more likely performed in patients: aged ≤60 years than >60 years (45% vs. 30%; p = 0.03), treated in academic versus community hospitals (44% vs. 26%; p = 0.01), and in chemotherapy recipients than non-therapy recipients (46% vs. 19%; p < 0.001). Most common mutations were ASXL1, NPM1, and FLT3. Patients ≥75 years had highest proportion (46%) of multiple (≥3) mutations. Overall, 31.2% of patients with AML did not receive any therapy for their disease. This subgroup was older than chemotherapy recipients (mean age: 71.4 vs. 55.7 years, p < 0.001), and was highest (66.2%) in patients ≥75 years., Conclusions: Our results highlight the unmet medical need to increase access to genomic testing to afford treatment options, particularly to older AML patients in the real-world setting, in this new era of targeted therapies., (© 2023 The Authors. Cancer Medicine published by John Wiley & Sons Ltd.)
- Published
- 2023
- Full Text
- View/download PDF
50. Farnesol prevents aging-related muscle weakness in mice through enhanced farnesylation of Parkin-interacting substrate.
- Author
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Bae JH, Jo A, Cho SC, Lee YI, Kam TI, You CL, Jeong HJ, Kim H, Jeong MH, Jeong Y, Ha YW, Kim YS, Kim J, Woo SH, Kim MS, Shin ES, Song SO, Kang H, Khang R, Park S, Park J, Dawson VL, Dawson TM, Park SC, Shin JH, and Kang JS
- Subjects
- Animals, Mice, Aging, Prenylation, Ubiquitin-Protein Ligases, Farnesol pharmacology, Muscle Weakness
- Abstract
Peroxisome proliferator-activated receptor-γ coactivator-1α (PGC-1α) is a master regulator of mitochondrial biogenesis. Reduced PGC-1α abundance is linked to skeletal muscle weakness in aging or pathological conditions, such as neurodegenerative diseases and diabetes; thus, elevating PGC-1α abundance might be a promising strategy to treat muscle aging. Here, we performed high-throughput screening and identified a natural compound, farnesol, as a potent inducer of PGC-1α. Farnesol administration enhanced oxidative muscle capacity and muscle strength, leading to metabolic rejuvenation in aged mice. Moreover, farnesol treatment accelerated the recovery of muscle injury associated with enhanced muscle stem cell function. The protein expression of Parkin-interacting substrate (PARIS/ Zfp746 ), a transcriptional repressor of PGC-1α, was elevated in aged muscles, likely contributing to PGC-1α reduction. The beneficial effect of farnesol on aged muscle was mediated through enhanced PARIS farnesylation, thereby relieving PARIS-mediated PGC-1α suppression. Furthermore, short-term exercise increased PARIS farnesylation in the muscles of young and aged mice, whereas long-term exercise decreased PARIS expression in the muscles of aged mice, leading to the elevation of PGC-1α. Collectively, the current study demonstrated that the PARIS-PGC-1α pathway is linked to muscle aging and that farnesol treatment can restore muscle functionality in aged mice through increased farnesylation of PARIS.
- Published
- 2023
- Full Text
- View/download PDF
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