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Chen WT, Yan CF, Yu CJ, Liao YC, Chen CF. Highly catalytic Prussian blue analogues and their application on the three-dimensional origami paper-based sweat sensors. Biosens Bioelectron 2024; 254:116188. [PMID: 38484412 DOI: 10.1016/j.bios.2024.116188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Revised: 02/27/2024] [Accepted: 03/04/2024] [Indexed: 04/02/2024]
Abstract
Prussian blue analogues (PBAs) are promising materials due to their rich active sites and straightforward synthesis. However, their limited conductivity and electron transfer inefficiency hinder practical applications. This study utilizes a simple one-pot synthesis approach to produce a tungsten-disulfide (WS2) and iron-cobalt Prussian blue analogue composite (WS2-PBA), enhancing conductivity and electron transfer rate performance. Through the inclusion of sodium citrate into the solution, the S-edge site concentration of WS2 increases. This augmentation introduces additional active sites and defects into the catalyst, enhancing its catalytic activity. The effectiveness of the WS2-PBA 3D-Origami paper device for lactate detection in sweat is also evaluated for biomedical applications. The device demonstrated a robust relationship between the lactate concentration and current intensity (R2 = 0.997), with a detection limit of 1.83 mM. Additionally, this platform has successfully detected lactate in clinical sweat, correlating with the high-performance liquid chromatography test results, suggesting promising prospects for clinical diagnosis. In the future, the excellent catalytic and Rct performance of the WS2-PBA will enable its use in biomedical applications.
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Affiliation(s)
- Wei-Ting Chen
- Institute of Applied Mechanics, National Taiwan University, Taipei, 106, Taiwan
| | - Chi-Fong Yan
- Institute of Applied Mechanics, National Taiwan University, Taipei, 106, Taiwan
| | - Cheng-Ju Yu
- Department of Applied Physics and Chemistry, University of Taipei, Taipei, 100, Taiwan
| | - Ying-Chih Liao
- Department of Chemical Engineering, National Taiwan University, Taipei, 106, Taiwan
| | - Chien-Fu Chen
- Institute of Applied Mechanics, National Taiwan University, Taipei, 106, Taiwan; Graduate School of Advanced Technology, National Taiwan University, Taipei, 106, Taiwan.
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Chang ML, Le PH, Chen WT, Chen TD, Chien RN. Hepatic and Extrahepatic Characteristics of Autoimmune Hepatitis: A 23-year Hospital-Based Cohort Study. Dig Dis Sci 2024:10.1007/s10620-024-08439-0. [PMID: 38653947 DOI: 10.1007/s10620-024-08439-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Accepted: 04/09/2024] [Indexed: 04/25/2024]
Abstract
BACKGROUND The characteristics of autoimmune hepatitis (AIH) in Asia mostly remain elusive. METHODS A cohort study of liver biopsy-proven AIH patients was conducted in a tertiary care cancer of Taiwan. RESULTS From 1999 to 2022, of 13,766 patients who underwent liver biopsy, 150 patients with AIH were enrolled. The female-to-male ratio was 2.26. At baseline, the mean age was 51.09 years, mean alanine aminotransferase level was 494.11 U/L, and 17 (11.3%) had cirrhosis. All except one patient had AIH type 1. The females were older and had higher baseline cirrhosis rates than did the males. The 23-year cumulative incidences of cirrhosis, hepatocellular carcinoma (HCC), mortality/liver transplantation, autoimmune diseases and extrahepatic cancer were 64.2%, 13.3%, 23.4%, 30.7% and 21.2%, respectively. The 1-year, 2-year, 3-year, 5-year, 10-year and 20-year postimmunosuppressive therapy relapse rates were 60%, 78.2%, 81.8%, 89.1%, 94.5% and 100%, respectively. Baseline associations were as follows: alkaline phosphatase (Alk-p) levels with postimmunosuppressive therapy flare [hazard ratio (HR): 1.003; 95% CI HR: 1.000-1.005]; age with HCC (1.072; 1.010-1.138) and all-cause cancer (1.041;1.005-1.079); cirrhosis with mortality/liver transplantation (11.933;1.984-71.787); and antinuclear antibody (ANA) titers with mortality/liver transplantation (1.001;1.000-1.003), cirrhosis (1.001;1.000-1.002), and autoimmune diseases (1.001; 1.000-1.002). CONCLUSION In an Asian country endemic for viral hepatitis, the female-to-male and baseline cirrhosis rates of AIH patients were lower than expected, while over 60% of the patients eventually developed cirrhosis. The high posttherapy relapse rate warrants cautious monitoring, particularly for patients with high baseline Alk-p levels. Baseline age, cirrhosis status and ANA titers are crucial for outcomes.
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Affiliation(s)
- Ming-Ling Chang
- Department of Gastroenterology and Hepatology, Chang Gung Memorial Hospital, No. 5, Fu Hsing Street, Kuei Shan, Taoyuan, Taiwan.
- Department of Medicine, College of Medicine, Chang Gung University, Taoyuan, Taiwan.
| | - Puo-Hsien Le
- Department of Gastroenterology and Hepatology, Chang Gung Memorial Hospital, No. 5, Fu Hsing Street, Kuei Shan, Taoyuan, Taiwan
- Department of Medicine, College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Wei-Ting Chen
- Department of Gastroenterology and Hepatology, Chang Gung Memorial Hospital, No. 5, Fu Hsing Street, Kuei Shan, Taoyuan, Taiwan
- Department of Medicine, College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Tai-Di Chen
- Department of Anatomic Pathology, Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - Rong-Nan Chien
- Department of Gastroenterology and Hepatology, Chang Gung Memorial Hospital, No. 5, Fu Hsing Street, Kuei Shan, Taoyuan, Taiwan
- Department of Medicine, College of Medicine, Chang Gung University, Taoyuan, Taiwan
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Lin SH, Chen WT, Tsai MH, Liu LT, Kuo WL, Lin YT, Wang SF, Chen BH, Lee CH, Huang CH, Chien RN. A novel prognostic model to predict mortality in patients with acute-on-chronic liver failure in intensive care unit. Intern Emerg Med 2024; 19:721-730. [PMID: 38386096 DOI: 10.1007/s11739-024-03536-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/29/2023] [Accepted: 01/11/2024] [Indexed: 02/23/2024]
Abstract
Acute-on-chronic liver failure (ACLF) implies high short-term mortality rates and usually requires intensive care unit (ICU) admission. Proper prognosis for these patients is crucial for early referral for liver transplantation. The superiority of CLIF-C ACLF score in Asian patients with ACLF admitted to an ICU remains inconclusive when compared to other scoring systems. The purpose of the study is (i) to compare the predictive performance of original MELD, MELD-Lactate, CLIF-C ACLF, CLIF-C ACLF-Lactate, and APACHE-II scores for short-term mortality assessment. (ii) to build and validate a novel scoring system and to compare its predictive performance to that of the original five scores. Two hundred sixty-five consecutive cirrhotic patients with ACLF who were admitted to our ICU were enrolled. The prognostic values for mortality were assessed by ROC analysis. A novel model was developed and internally validated using fivefold cross-validation. Alcohol abuse was identified as the primary etiology of cirrhosis. The AUROC of the five prognostic scores were not significantly superior to each other in predicting 1-month and 3-month mortality. The newly developed prognostic model, incorporating age, alveolar-arterial gradient (A-a gradient), BUN, total bilirubin level, INR, and HE grades, exhibited significantly improved performance in predicting 1-month and 3-month mortality with AUROC of 0.863 and 0.829, respectively, as compared to the original five prognostic scores. The novel ACLF model seems to be superior to the original five scores in predicting short-term mortality in ACLF patients admitted to an ICU. Further rigorous validation is required.
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Affiliation(s)
- Shih-Hua Lin
- Department of Gastroenterology and Hepatology, New Taipei Municipal TuCheng Hospital, Tucheng, New Taipei City, 236, Taiwan
| | - Wei-Ting Chen
- Division of Hepatology, Department of Gastroenterology and Hepatology, Linkou Chang-Gung Memorial Hospital, Taoyuan, 333, Taiwan
- College of Medicine, Chang-Gung University, Taoyuan, 333, Taiwan
| | - Ming-Hung Tsai
- Division of Hepatology, Department of Gastroenterology and Hepatology, Linkou Chang-Gung Memorial Hospital, Taoyuan, 333, Taiwan
- College of Medicine, Chang-Gung University, Taoyuan, 333, Taiwan
| | - Li-Tong Liu
- Division of Hepatology, Department of Gastroenterology and Hepatology, Linkou Chang-Gung Memorial Hospital, Taoyuan, 333, Taiwan
| | - Wei-Liang Kuo
- Division of Hepatology, Department of Gastroenterology and Hepatology, Linkou Chang-Gung Memorial Hospital, Taoyuan, 333, Taiwan
| | - Yan-Ting Lin
- Division of Hepatology, Department of Gastroenterology and Hepatology, Linkou Chang-Gung Memorial Hospital, Taoyuan, 333, Taiwan
| | - Sheng-Fu Wang
- Division of Hepatology, Department of Gastroenterology and Hepatology, Linkou Chang-Gung Memorial Hospital, Taoyuan, 333, Taiwan
| | - Bo-Huan Chen
- Division of Hepatology, Department of Gastroenterology and Hepatology, Linkou Chang-Gung Memorial Hospital, Taoyuan, 333, Taiwan
| | - Cheng-Han Lee
- Division of Hepatology, Department of Gastroenterology and Hepatology, Linkou Chang-Gung Memorial Hospital, Taoyuan, 333, Taiwan
| | - Chien-Hao Huang
- Division of Hepatology, Department of Gastroenterology and Hepatology, Linkou Chang-Gung Memorial Hospital, Taoyuan, 333, Taiwan.
- College of Medicine, Chang-Gung University, Taoyuan, 333, Taiwan.
| | - Rong-Nan Chien
- Division of Hepatology, Department of Gastroenterology and Hepatology, Linkou Chang-Gung Memorial Hospital, Taoyuan, 333, Taiwan
- College of Medicine, Chang-Gung University, Taoyuan, 333, Taiwan
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Tsai CS, Lu PL, Lu MC, Hsieh TC, Chen WT, Wang JT, Ko WC. Ribotypes and antimicrobial susceptibility profiles of clinical Clostridioides difficile isolates: A multicenter, laboratory-based surveillance in Taiwan, 2019-2021. J Microbiol Immunol Infect 2024; 57:320-327. [PMID: 38135646 DOI: 10.1016/j.jmii.2023.12.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2023] [Revised: 11/30/2023] [Accepted: 12/12/2023] [Indexed: 12/24/2023]
Abstract
BACKGROUND The clinical burden of Clostridioides difficile infections (CDIs) remains substantial globally. This study aimed to investigate the ribotypes (RTs) and antimicrobial susceptibility of C. difficile isolates collected in Taiwan. METHODS C. difficile isolates were prospectively collected from four medical centers in Taiwan from 2019 to 2021. In a reference laboratory, in vitro susceptibility to clindamycin, moxifloxacin, metronidazole, vancomycin, fidaxomicin, and rifaximin were tested, and ribotyping was conducted to determine their genetic diversity. RESULTS A total of 568 C. difficile isolates were included. Metronidazole resistance was not observed, and the susceptibility rate of vancomycin was 99.5 %. Clindamycin showed poor activity against these isolates, with a resistance rate of 74.8 %. Fidaxomicin exhibited potent activity and 97.4 % of isolates were inhibited at 0.25 μg/mL. Rifaximin MIC90 increased from 0.015 μg/mL in 2019 to 0.03 μg/mL in 2020 and 2021. Of 40 RTs identified, two predominant RTs were RT 078/126 (78, 14 %) and 014/020 (76, 13 %). RT 017, traditional harboring truncated tcdA, accounted for 3 % (20 isolates) and there was no isolate belonging to RT 027. The proportions of RT 078 increased from 11.2 % in 2019 to 17.1 % in 2021, and the predominance of RT 078/126 was more evident in central Taiwan. CONCLUSIONS Vancomycin, fidaxomicin, and metronidazole remain in vitro effective against clinical C. difficile isolates in Taiwan. The reservoirs and genetic relatedness of two major RTs with zoonotic potentials, RT 078/126 and 014/020, warrant further investigations.
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Affiliation(s)
- Chin-Shiang Tsai
- Institute of Clinical Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan; Department of Internal Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Po-Liang Lu
- Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan; School of Post-Baccalaureate Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan; Center for Liquid Biopsy and Cohort Research, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Min-Chi Lu
- Department of Internal Medicine, China Medical University Hospital, School of Medicine, China Medical University, Taichung, Taiwan
| | - Tai-Chin Hsieh
- Global Medical and Scientific Affairs, MSD Taiwan, Taipei, Taiwan
| | - Wei-Ting Chen
- Global Medical and Scientific Affairs, MSD Taiwan, Taipei, Taiwan
| | - Jann-Tay Wang
- Department of Internal Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan.
| | - Wen-Chien Ko
- Department of Internal Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan.
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Chang ML, Cheng JS, Le PH, Chen WT, Ku HP, Chien RN. Evolutionary relationship between antimitochondrial antibody positivity and primary biliary cholangitis in Taiwan: a 16-year hospital cohort study. Therap Adv Gastroenterol 2024; 17:17562848241241227. [PMID: 38560427 PMCID: PMC10981211 DOI: 10.1177/17562848241241227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/26/2023] [Accepted: 03/06/2024] [Indexed: 04/04/2024] Open
Abstract
Background How antimitochondrial antibody (AMA)-positive patients evolve to have primary biliary cholangitis (PBC) in viral hepatitis-endemic areas is unknown. Objectives We aimed to investigate this evolution in Taiwan. Design/methods A 16-year medical center-based cohort study of 2,095,628 subjects was conducted in Taiwan, an Asian country endemic to viral hepatitis. AMA-positive subjects were those with positive AMA with alkaline phosphatase (ALP) ⩽1.5 times the upper limit of normal (ULN), and PBC was defined as positive AMA with ALP >1.5 × ULN. Results AMA-positive subjects had a lower average age- and sex-adjusted prevalence than PBC patients (4.68/105 versus 11.61/105, p = 0.0002), but their incidence was comparable (0.99/105 versus 1.12/105, p = 0.36). The former group had a borderline significantly lower mean age (56.59 years versus 58.10 years, p = 0.06) and a lower female-to-male ratio (2.85:1 versus 5.44:1, p < 0.0001). Both AMA-positive subjects (prevalence change: 20.0%, p < 0.01; incidence change: -9.2%, p < 0.01) and PBC patients (prevalence change: 14.6%, p < 0.01; incidence change: -4.7%, p < 0.01) prevalence rate increased but the incidence rate decreased. Among the 423 AMA-positive subjects, 77 (18.2%) developed PBC, for a mean duration of 1.757 years. Compared with AMA-positive subjects, PBC patients had similar concurrent chronic hepatitis B (CHB) rates (2.7% versus 4.3%, p = 0.197) but lower chronic hepatitis C (CHC) rates (3.69% versus 15.60%, p < 0.01). Conclusion PBC was more prevalent than AMA-positive subjects, and PBC patients had a higher female-to-male ratio than AMA-positive subjects, of whom 18.2% developed PBC (mean lag: 1.757 years). Upward trends in prevalence rates and downward trends in incidence rates were noted for both AMA-positive subjects and PBC. CHB was rare, CHC was more prevalent among PBC patients than the general population, and CHC was less prevalent among PBC than among AMA-positive subjects.
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Affiliation(s)
- Ming-Ling Chang
- Division of Hepatology, Department of Gastroenterology and Hepatology, Chang Gung Memorial Hospital, No. 5, Fu Hsing Street, Kuei Shan, Taoyuan 333423, Taiwan
- Department of Medicine, College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Jur-Shan Cheng
- Division of Hepatology, Department of Gastroenterology and Hepatology, Chang Gung Memorial Hospital, Linkou, Taiwan
- Clinical Informatics and Medical Statistics Research Center, College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Puo-Hsien Le
- Division of Hepatology, Department of Gastroenterology and Hepatology, Chang Gung Memorial Hospital, Linkou, Taiwan
- Department of Medicine, College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Wei-Ting Chen
- Division of Hepatology, Department of Gastroenterology and Hepatology, Chang Gung Memorial Hospital, Linkou, Taiwan
- Department of Medicine, College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Hsin-Ping Ku
- Clinical Informatics and Medical Statistics Research Center, College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Rong-Nan Chien
- Division of Hepatology, Department of Gastroenterology and Hepatology, Chang Gung Memorial Hospital, Linkou, Taiwan
- Department of Medicine, College of Medicine, Chang Gung University, Taoyuan, Taiwan
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Su PI, Tsai MS, Chen WT, Wang CH, Chang WT, Ma MHM, Chen WJ, Huang CH, Chen YS. Prognostic value of arterial carbon dioxide tension during cardiopulmonary resuscitation in out-of-hospital cardiac arrest patients receiving extracorporeal resuscitation. Scand J Trauma Resusc Emerg Med 2024; 32:23. [PMID: 38515204 PMCID: PMC10958860 DOI: 10.1186/s13049-024-01195-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Accepted: 03/14/2024] [Indexed: 03/23/2024] Open
Abstract
BACKGROUND Current guidelines on extracorporeal cardiopulmonary resuscitation (ECPR) recommend careful patient selection, but precise criteria are lacking. Arterial carbon dioxide tension (PaCO2) has prognostic value in out-of-hospital cardiac arrest (OHCA) patients but has been less studied in patients receiving ECPR. We studied the relationship between PaCO2 during cardiopulmonary resuscitation (CPR) and neurological outcomes of OHCA patients receiving ECPR and tested whether PaCO2 could help ECPR selection. METHODS This single-centre retrospective study enrolled 152 OHCA patients who received ECPR between January 2012 and December 2020. Favorable neurological outcome (FO) at discharge was the primary outcome. We used multivariable logistic regression to determine the independent variables for FO and generalised additive model (GAM) to determine the relationship between PaCO2 and FO. Subgroup analyses were performed to test discriminative ability of PaCO2 in subgroups of OHCA patients. RESULTS Multivariable logistic regression showed that PaCO2 was independently associated with FO after adjusting for other favorable resuscitation characteristics (Odds ratio [OR] 0.23, 95% Confidence Interval [CI] 0.08-0.66, p-value = 0.006). GAM showed a near-linear reverse relationship between PaCO2 and FO. PaCO2 < 70 mmHg was the cutoff point for predicting FO. PaCO2 also had prognostic value in patients with less favorable characteristics, including non-shockable rhythm (OR, 3.78) or low flow time > 60 min (OR, 4.66). CONCLUSION PaCO2 before ECMO implementation had prognostic value for neurological outcomes in OHCA patients. Patients with PaCO2 < 70 mmHg had higher possibility of FO, even in those with non-shockable rhythm or longer low-flow duration. PaCO2 could serve as an ECPR selection criterion.
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Affiliation(s)
- Pei-I Su
- Department of Emergency Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, National Taiwan University, No.7, Zhongshan S. Rd., Zhongzheng Dist., Taipei City, 100, Taiwan (ROC)
| | - Min-Shan Tsai
- Department of Emergency Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, National Taiwan University, No.7, Zhongshan S. Rd., Zhongzheng Dist., Taipei City, 100, Taiwan (ROC)
| | - Wei-Ting Chen
- Department of Emergency Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, National Taiwan University, No.7, Zhongshan S. Rd., Zhongzheng Dist., Taipei City, 100, Taiwan (ROC)
| | - Chih-Hung Wang
- Department of Emergency Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, National Taiwan University, No.7, Zhongshan S. Rd., Zhongzheng Dist., Taipei City, 100, Taiwan (ROC)
| | - Wei-Tien Chang
- Department of Emergency Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, National Taiwan University, No.7, Zhongshan S. Rd., Zhongzheng Dist., Taipei City, 100, Taiwan (ROC)
| | - Matthew Huei-Ming Ma
- Department of Emergency Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, National Taiwan University, No.7, Zhongshan S. Rd., Zhongzheng Dist., Taipei City, 100, Taiwan (ROC)
| | - Wen-Jone Chen
- Department of Emergency Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, National Taiwan University, No.7, Zhongshan S. Rd., Zhongzheng Dist., Taipei City, 100, Taiwan (ROC)
- Departments of Internal Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
| | - Chien-Hua Huang
- Department of Emergency Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, National Taiwan University, No.7, Zhongshan S. Rd., Zhongzheng Dist., Taipei City, 100, Taiwan (ROC).
- Departments of Internal Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan.
| | - Yih-Sharng Chen
- Department of Surgery, National Taiwan University Hospital, and College of Medicine, National Taiwan University, Taipei, Taiwan
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Wu YW, Chen TY, Huang CH, Chu YJ, Chen WT, Lu KT, Chang WT, Ong HN, Chen WJ, Tsai MS. Work Status, Functional Recovery, and Quality of Life of Cardiac Arrest Survivors After Hospital Discharge. J Am Heart Assoc 2024; 13:e032717. [PMID: 38456404 PMCID: PMC11009996 DOI: 10.1161/jaha.123.032717] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Accepted: 02/16/2024] [Indexed: 03/09/2024]
Affiliation(s)
- Yi-Wen Wu
- Department of Emergency Medicine National Taiwan University Medical College and Hospital Taipei Taiwan
| | - Tai-Yuan Chen
- Department of Emergency Medicine National Taiwan University Medical College and Hospital Taipei Taiwan
| | - Chien-Hua Huang
- Department of Emergency Medicine National Taiwan University Medical College and Hospital Taipei Taiwan
| | - Yu-Jen Chu
- Department of Nursing National Taiwan University Medical College and Hospital Taipei Taiwan
| | - Wei-Ting Chen
- Department of Emergency Medicine National Taiwan University Medical College and Hospital Taipei Taiwan
| | - Kuan-Ting Lu
- Department of Emergency Medicine National Taiwan University Medical College and Hospital Taipei Taiwan
| | - Wei-Tien Chang
- Department of Emergency Medicine National Taiwan University Medical College and Hospital Taipei Taiwan
| | - Hooi-Nee Ong
- Department of Emergency Medicine National Taiwan University Medical College and Hospital Taipei Taiwan
| | - Wen-Jone Chen
- Department of Emergency Medicine National Taiwan University Medical College and Hospital Taipei Taiwan
- Department of Internal Medicine (Cardiology Division) National Taiwan University Medical College and Hospital Taipei Taiwan
| | - Min-Shan Tsai
- Department of Emergency Medicine National Taiwan University Medical College and Hospital Taipei Taiwan
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Lin PT, Hsu YC, Kao YT, Teng W, Hsieh YC, Chen WT, Su CW, Wang CT, Chai PM, Lin CC, Lin CY, Lin SM. Locoregional treatment improves overall survival for liver cancer during second-line regorafenib or immune checkpoint inhibitor. Am J Cancer Res 2024; 14:1306-1315. [PMID: 38590407 PMCID: PMC10998751 DOI: 10.62347/gfvp1262] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2023] [Accepted: 03/14/2024] [Indexed: 04/10/2024] Open
Abstract
For advanced hepatocellular carcinoma (HCC), the best second-line treatment after first-line treatment with sorafenib is unclear. This study aimed to compared the efficacy of second-line regorafenib (a tyrosine kinase inhibitor) and immune checkpoint inhibitors (ICIs) in patients with advanced HCC after sorafenib therapy. This retrospective study included 89 patients with HCC treated with sorafenib, and then regorafenib (n = 58) or an ICI (n = 31). Treatment response, overall survival (OS) and progression-free survival (PFS) of the 2 groups were compared, and factors associated with post-treatment mortality or disease progression were evaluated. During follow-up period, compared to regorafenib, treatment with an ICI results in a slight increase in a 20% decrease of AFP (35.7% vs. 31.8%), complete response rate (6.5% vs. 0%), objective response rate (16.1% vs. 6.9%), median overall survival (13.3 vs. 5 months), and median PFS (3.0 vs. 2.6 months). Combined locoregional treatment (LRT) (hazard ratio [HR] = 0.40, 95% confidence interval [CI]: 0.15-0.99) during second-line treatment was associated with a decreased risk of post-treatment mortality. After propensity scoring matching, combined LRT during second-line treatment had longer post-treatment OS than patients without combined LRT. A 20% decrease of AFP (HR = 0.54, 95% CI: 0.31-0.94) was associated with a decreased risk of post-treatment disease progression. In conclusions, second-line treatment with regorafenib or ICI prolongs OS in patients with advanced HCC treated with sorafenib. Combined LRT during second-line treatment is associated with decreased post-treatment mortality. A 20% decrease of AFP level may be predictive of a lower rate of disease progression.
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Affiliation(s)
- Po-Ting Lin
- Department of Gastroenterology and Hepatology, Chang Gung Memorial Hospital, Linkou BranchTaoyuan 333, Taiwan
- College of Medicine, Chang Gung UniversityTaoyuan 333, Taiwan
- Graduate Institute of Clinical Medical Sciences, College of Medicine, Chang Gung UniversityTaoyuan 333, Taiwan
| | - Yu-Chun Hsu
- Department of Gastroenterology and Hepatology, Chang Gung Memorial Hospital, Linkou BranchTaoyuan 333, Taiwan
- College of Medicine, Chang Gung UniversityTaoyuan 333, Taiwan
| | - Yu-Ting Kao
- Department of Gastroenterology and Hepatology, Chang Gung Memorial Hospital, Linkou BranchTaoyuan 333, Taiwan
- College of Medicine, Chang Gung UniversityTaoyuan 333, Taiwan
| | - Wei Teng
- Department of Gastroenterology and Hepatology, Chang Gung Memorial Hospital, Linkou BranchTaoyuan 333, Taiwan
- College of Medicine, Chang Gung UniversityTaoyuan 333, Taiwan
| | - Yi-Chung Hsieh
- Department of Gastroenterology and Hepatology, Chang Gung Memorial Hospital, Linkou BranchTaoyuan 333, Taiwan
- College of Medicine, Chang Gung UniversityTaoyuan 333, Taiwan
| | - Wei-Ting Chen
- Department of Gastroenterology and Hepatology, Chang Gung Memorial Hospital, Linkou BranchTaoyuan 333, Taiwan
- College of Medicine, Chang Gung UniversityTaoyuan 333, Taiwan
| | - Chung-Wei Su
- Department of Gastroenterology and Hepatology, Chang Gung Memorial Hospital, Linkou BranchTaoyuan 333, Taiwan
- College of Medicine, Chang Gung UniversityTaoyuan 333, Taiwan
| | - Ching-Ting Wang
- College of Medicine, Chang Gung UniversityTaoyuan 333, Taiwan
- Department of Nursing, Chang Gung Memorial Hospital, Linkou Medical CenterTaoyuan 333, Taiwan
| | - Pei-Mei Chai
- College of Medicine, Chang Gung UniversityTaoyuan 333, Taiwan
- Department of Nursing, Chang Gung Memorial Hospital, Linkou Medical CenterTaoyuan 333, Taiwan
| | - Chen-Chun Lin
- College of Medicine, Chang Gung UniversityTaoyuan 333, Taiwan
- Department of Gastroenterology and Hepatology, New Taipei Municipal Tucheng HospitalNew Taipei 236, Taiwan
| | - Chun-Yen Lin
- Department of Gastroenterology and Hepatology, Chang Gung Memorial Hospital, Linkou BranchTaoyuan 333, Taiwan
- College of Medicine, Chang Gung UniversityTaoyuan 333, Taiwan
| | - Shi-Ming Lin
- Department of Gastroenterology and Hepatology, Chang Gung Memorial Hospital, Linkou BranchTaoyuan 333, Taiwan
- College of Medicine, Chang Gung UniversityTaoyuan 333, Taiwan
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Wise MG, Karlowsky JA, Chen WT, Siddiqui F, Young K, Motyl MR, Sahm DF. Susceptibility of gram-negative isolates collected in Taiwan to imipenem/relebactam and comparator agents - SMART 2018-2021. J Formos Med Assoc 2024; 123:400-407. [PMID: 37735013 DOI: 10.1016/j.jfma.2023.09.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Revised: 08/28/2023] [Accepted: 09/08/2023] [Indexed: 09/23/2023] Open
Abstract
BACKGROUND Imipenem/relebactam (IMR) was approved for patient use in Taiwan in 2023. We evaluated the in vitro susceptibility of recent Gram-negative pathogens collected in Taiwan hospitals to IMR and comparators with a focus on carbapenem-resistant and KPC-carrying non-Morganellaceae Enterobacterales (NME), and carbapenem-resistant Pseudomonas aeruginosa (CRPA). METHODS From 2018 to 2021, eight hospitals in Taiwan each collected up to 250 consecutive, aerobic or facultative, Gram-negative pathogens per year from patients with bloodstream, intraabdominal, lower respiratory tract, and urinary tract infections. MICs were determined using Clinical Laboratory Standards Institute (CLSI) broth microdilution. Most isolates that were IMR-, imipenem-, or ceftolozane/tazobactam-nonsusceptible were screened for β-lactamase genes by PCR or whole-genome sequencing. RESULTS Ninety-eight percent of NME (n = 5063) and 94% of P. aeruginosa (n = 1518) isolates were IMR-susceptible. Percent susceptible values for non-carbapenem β-lactam comparators, including piperacillin/tazobactam, were 68-79% for NME isolates, while percent susceptible values for all β-lactam comparators, including meropenem, were 73-81% for P. aeruginosa. IMR retained activity against 93% of multidrug-resistant (MDR) NME and 70% of MDR P. aeruginosa. Sixty-five percent of carbapenem-resistant NME and 81% of KPC-positive NME (n = 80) were IMR-susceptible. IMR inhibited 70% of CRPA (n = 287). Fifty percent of IMR-nonsusceptible NME tested for β-lactamase carriage had an MBL or OXA-48-like enzyme, whereas most (95%) IMR-nonsusceptible P. aeruginosa examined did not carry acquired β-lactamase genes. CONCLUSION Based on our in vitro data, IMR may be a useful option for the treatment of hospitalized patients in Taiwan with infections caused by common Gram-negative pathogens, including carbapenem-resistant NME, KPC-positive NME, and CRPA.
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Affiliation(s)
| | - James A Karlowsky
- IHMA, Schaumburg, IL 60173, USA; Department of Medical Microbiology and Infectious Diseases, Max Rady College of Medicine, University of Manitoba, Winnipeg, MB R3E 0J9, Canada
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Lu YB, Lu SC, Li FD, Le PH, Zhang KH, Sun ZZ, Huang YN, Weng YC, Chen WT, Fu YW, Qian JB, Hu B, Xu H, Chiu CT, Xu QW, Gong W. Artificial intelligence-aided diagnostic imaging: A state-of-the-art technique in precancerous screening. J Gastroenterol Hepatol 2024; 39:544-551. [PMID: 38059883 DOI: 10.1111/jgh.16429] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Revised: 11/03/2023] [Accepted: 11/09/2023] [Indexed: 12/08/2023]
Abstract
BACKGROUND AND AIM Chromoendoscopy with the use of indigo carmine (IC) dye is a crucial endoscopic technique to identify gastrointestinal neoplasms. However, its performance is limited by the endoscopist's skill, and no standards are available for lesion identification. Thus, we developed an artificial intelligence (AI) model to replace chromoendoscopy. METHODS This pilot study assessed the feasibility of our novel AI model in the conversion of white-light images (WLI) into virtual IC-dyed images based on a generative adversarial network. The predictions of our AI model were evaluated against the assessments of five endoscopic experts who were blinded to the purpose of this study with a staining quality rating from 1 (unacceptable) to 4 (excellent). RESULTS The AI model successfully transformed the WLI of polyps with different morphologies and different types of lesions in the gastrointestinal tract into virtual IC-dyed images. The quality ratings of the real IC-dyed and AI images did not significantly differ concerning surface structure (AI vs IC: 3.08 vs 3.00), lesion border (3.04 vs 2.98), and overall contrast (3.14 vs 3.02) from 10 sets of images (10 AI images and 10 real IC-dyed images). Although the score depended significantly on the evaluator, the staining methods (AI or real IC) and evaluators had no significant interaction (P > 0.05) with each other. CONCLUSION Our results demonstrated the feasibility of employing AI model's virtual IC staining, increasing the possibility of being employed in daily practice. This novel technology may facilitate gastrointestinal lesion identification in the future.
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Affiliation(s)
- Yang-Bor Lu
- Department of Digestive Disease, Xiamen Chang Gung Hospital, Hua Qiao University, Xiamen, China
- Endoscopy Center, Xiamen Chang Gung Hospital, Hua Qiao University, Xiamen, China
| | - Si-Cun Lu
- Departmemt of Gastroenterology, Shenzhen Hospital, Southern Medical University, Shenzhen, China
- The Third School of Clinical Medicine, Southern Medical University, Shenzhen, China
| | - Fu-Dong Li
- Department of Gastroenterology and Endoscopy Center, First Hospital of Jilin University, Jilin, China
| | - Puo-Hsien Le
- Department of Gastroenterology and Hepatology, Chang Gung Memorial Hospital, Linkou Branch, Taoyuan, Taiwan
| | - Kai-Hua Zhang
- School of Computer, Nanjing University of Information Science and Technology, Nanjing, China
| | - Zi-Zheng Sun
- School of Computer, Nanjing University of Information Science and Technology, Nanjing, China
| | - Yung-Ning Huang
- Department of Digestive Disease, Xiamen Chang Gung Hospital, Hua Qiao University, Xiamen, China
- Endoscopy Center, Xiamen Chang Gung Hospital, Hua Qiao University, Xiamen, China
| | - Yu-Chieh Weng
- Department of Digestive Disease, Xiamen Chang Gung Hospital, Hua Qiao University, Xiamen, China
- Endoscopy Center, Xiamen Chang Gung Hospital, Hua Qiao University, Xiamen, China
| | - Wei-Ting Chen
- Department of Gastroenterology and Hepatology, Chang Gung Memorial Hospital, Linkou Branch, Taoyuan, Taiwan
| | - Yi-Wei Fu
- Department of Gastroenterology, Affiliated Taizhou People's Hospital of Nanjing Medical University, Nanjing, China
| | - Jun-Bo Qian
- Department of Gastroenterology, The Second Hospital affiliated to Nantong University, Nantong, China
| | - Bin Hu
- Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu, China
| | - Hong Xu
- Department of Gastroenterology and Endoscopy Center, First Hospital of Jilin University, Jilin, China
| | - Cheng-Tang Chiu
- Department of Gastroenterology and Hepatology, Chang Gung Memorial Hospital, Linkou Branch, Taoyuan, Taiwan
| | - Qin-Wei Xu
- Endoscopy Center, Department of Gastroenterology, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Wei Gong
- Departmemt of Gastroenterology, Shenzhen Hospital, Southern Medical University, Shenzhen, China
- The Third School of Clinical Medicine, Southern Medical University, Shenzhen, China
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Chang ML, Cheng JS, Chen WT, Hsu CW, Chen KH, Chen YC, Chien RN. Long-term renal function alterations in hepatitis C patients with SVRs: Impacts of therapies and mixed cryoglobulinemia. J Infect Public Health 2024; 17:486-494. [PMID: 38280352 DOI: 10.1016/j.jiph.2024.01.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2023] [Revised: 01/09/2024] [Accepted: 01/11/2024] [Indexed: 01/29/2024] Open
Abstract
BACKGROUND / AIMS Effects of anti-hepatitis C virus (HCV) therapeutic regimens and mixed cryoglobulinemia on long-term renal function of HCV-infected patients with viral clearance have not been determined. METHODS/MATERIALS A prospective 10-year cohort study of 1212 HCV-infected patients (interferon-based therapy, n = 615; direct-acting antiviral (DAA) therapy, n = 434) was conducted. RESULTS At baseline, age, body mass index (BMI), hemoglobin (Hb) and uric acid (UA) levels, and fibrosis-4 score were associated with estimated glomerular filtration rates (eGFRs) in HCV-infected patients. At 24 weeks posttherapy, age, BMI, and Hb and UA levels were associated with eGFRs in patients with a sustained virological response (SVR) (n = 930). Compared with those at baseline, the eGFRs were lower in SVR patients at 24 weeks posttherapy, regardless of the therapeutic regimen. The eGFRs reverted to baseline levels in interferon-treated SVR patients up to 10 years posttherapy but remained decreased in DAA-treated SVR patients up to 4 years posttherapy. Longitudinally, repeated measures analyses with generalized estimating equations showed that the interactions between DAA-based therapy and mixed cryoglobulinemia (OR: 3.291) and Hb levels (1.778) were positively, while DAA-based therapy (0.442), age (0.956), UA levels (0.698), homeostasis model assessment-insulin resistance index (0.961) and complement 4 levels (0.9395) were negatively associated with the eGFR. Among DAA-treated SVR patients, the baseline eGFR (OR: 1.014; 95%CI OR: 1.004-1.023) and high-sensitivity C-reactive protein (HR: 1.082; 95%CI HR: 1.018-1.15) were associated with eGFR reduction at 24 weeks and 4 years posttherapy, respectively. CONCLUSIONS Hepatic fibrosis was an HCV-related factor for renal function. Longitudinally, DAA therapy was negatively, while the interaction between DAA therapy and mixed cryoglobulinemia was positively associated with renal function in SVR patients; deteriorated renal function was recovered in interferon-treated SVR patients. Particularly in DAA-treated SVR patients, baseline renal function and systemic inflammation were associated with short- and long-term reductions in renal function, respectively.
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Affiliation(s)
- Ming-Ling Chang
- Division of Hepatology, Department of Gastroenterology and Hepatology, Chang Gung Memorial Hospital, Taoyuan, Taiwan; Department of Medicine, College of Medicine, Chang Gung University, Taoyuan, Taiwan.
| | - Jur-Shan Cheng
- Division of Hepatology, Department of Gastroenterology and Hepatology, Chang Gung Memorial Hospital, Taoyuan, Taiwan; Kidney Research Center, Department of Nephrology, Chang Gung Memorial Hospital, Linkou, Taiwan
| | - Wei-Ting Chen
- Division of Hepatology, Department of Gastroenterology and Hepatology, Chang Gung Memorial Hospital, Taoyuan, Taiwan; Department of Medicine, College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Chao-Wei Hsu
- Division of Hepatology, Department of Gastroenterology and Hepatology, Chang Gung Memorial Hospital, Taoyuan, Taiwan; Department of Medicine, College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Kuan-Hsing Chen
- Kidney Research Center, Department of Nephrology, Chang Gung Memorial Hospital, Linkou, Taiwan
| | - Yung-Chang Chen
- Kidney Research Center, Department of Nephrology, Chang Gung Memorial Hospital, Linkou, Taiwan
| | - Rong-Nan Chien
- Division of Hepatology, Department of Gastroenterology and Hepatology, Chang Gung Memorial Hospital, Taoyuan, Taiwan; Department of Medicine, College of Medicine, Chang Gung University, Taoyuan, Taiwan.
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Wu WY, Zheng WY, Chen WT, Tsai FT, Tsai ML, Pao CW, Chen JL, Liaw WF. Electronic Structure and Transformation of Dinitrosyl Iron Complexes (DNICs) Regulated by Redox Non-Innocent Imino-Substituted Phenoxide Ligand. Inorg Chem 2024; 63:2431-2442. [PMID: 38258796 PMCID: PMC10848267 DOI: 10.1021/acs.inorgchem.3c03367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Revised: 01/04/2024] [Accepted: 01/10/2024] [Indexed: 01/24/2024]
Abstract
The coupled NO-vibrational peaks [IR νNO 1775 s, 1716 vs, 1668 vs cm-1 (THF)] between two adjacent [Fe(NO)2] groups implicate the electron delocalization nature of the singly O-phenoxide-bridged dinuclear dinitrosyliron complex (DNIC) [Fe(NO)2(μ-ON2Me)Fe(NO)2] (1). Electronic interplay between [Fe(NO)2] units and [ON2Me]- ligand in DNIC 1 rationalizes that "hard" O-phenoxide moiety polarizes iron center(s) of [Fe(NO)2] unit(s) to enforce a "constrained" π-conjugation system acting as an electron reservoir to bestow the spin-frustrated {Fe(NO)2}9-{Fe(NO)2}9-[·ON2Me]2- electron configuration (Stotal = 1/2). This system plays a crucial role in facilitating the ligand-based redox interconversion, working in harmony to control the storage and redox-triggered transport of the [Fe(NO)2]10 unit, while preserving the {Fe(NO)2}9 core in DNICs {Fe(NO)2}9-[·ON2Me]2- [K-18-crown-6-ether)][(ON2Me)Fe(NO)2] (2) and {Fe(NO)2}9-[·ON2Me] [(ON2Me)Fe(NO)2][PF6] (3). Electrochemical studies suggest that the redox interconversion among [{Fe(NO)2}9-[·ON2Me]2-] DNIC 3 ↔ [{Fe(NO)2}9-[ON2Me]-] ↔ [{Fe(NO)2}9-[·ON2Me]] DNIC 2 are kinetically feasible, corroborated by the redox shuttle between O-bridged dimerized [(μ-ONMe)2Fe2(NO)4] (4) and [K-18-crown-6-ether)][(ONMe)Fe(NO)2] (5). In parallel with this finding, the electronic structures of [{Fe(NO)2}9-{Fe(NO)2}9-[·ON2Me]2-] DNIC 1, [{Fe(NO)2}9-[·ON2Me]2-] DNIC 2, [{Fe(NO)2}9-[·ON2Me]] DNIC 3, [{Fe(NO)2}9-[ONMe]-]2 DNIC 4, and [{Fe(NO)2}9-[·ONMe]2-] DNIC 5 are evidenced by EPR, SQUID, and Fe K-edge pre-edge analyses, respectively.
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Affiliation(s)
- Wun-Yan Wu
- Department of Chemistry, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Wei-Yuan Zheng
- Department of Chemistry, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Wei-Ting Chen
- Department of Chemistry, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Fu-Te Tsai
- Department of Chemistry, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Ming-Li Tsai
- Department of Chemistry, National Sun Yat-sen University, Kaohsiung 80424, Taiwan
| | - Chih-Wen Pao
- National Synchrotron Radiation
Research Center, Hsinchu 30013, Taiwan
| | - Jeng-Lung Chen
- National Synchrotron Radiation
Research Center, Hsinchu 30013, Taiwan
| | - Wen-Feng Liaw
- Department of Chemistry, National Tsing Hua University, Hsinchu 30013, Taiwan
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Karlowsky JA, Wise MG, Chen WT, Siddiqui F, Young K, Motyl MR, Sahm DF. Susceptibility of Gram-negative isolates collected in South Korea to imipenem/relebactam and comparator agents-SMART 2018-21. JAC Antimicrob Resist 2024; 6:dlad149. [PMID: 38161963 PMCID: PMC10753908 DOI: 10.1093/jacamr/dlad149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Accepted: 12/12/2023] [Indexed: 01/03/2024] Open
Abstract
Objectives To evaluate the in vitro susceptibility of recent Gram-negative pathogens collected in South Korean medical centres to imipenem/relebactam and comparator agents. Methods From 2018 to 2021, six hospitals in South Korea each collected up to 250 consecutive, aerobic or facultative Gram-negative pathogens per year from patients with bloodstream, intra-abdominal, lower respiratory tract and urinary tract infections. MICs were determined using CLSI broth microdilution and interpreted by 2023 CLSI breakpoints. Most isolates that were imipenem/relebactam, imipenem or ceftolozane/tazobactam non-susceptible were screened for β-lactamase genes by PCR or WGS. Results Of all non-Morganellaceae Enterobacterales (NME) isolates (n = 4100), 98.8% were imipenem/relebactam susceptible. Most NME were also susceptible to imipenem alone (94.7%) and meropenem (97.3%); percent susceptible values for non-carbapenem β-lactam comparators were lower (68%-80%). Imipenem/relebactam retained activity against 96.4%, 70.8% and 70.6% of MDR, difficult-to-treat resistant (DTR) and meropenem-non-susceptible NME, respectively, and inhibited 93.1% of KPC-carrying and 95.5% of ESBL-carrying NME. Of imipenem/relebactam-resistant NME, 21/25 (84.0%) carried an MBL or an OXA-48-like carbapenemase. Of all Pseudomonas aeruginosa isolates (n = 738), 82.8% were imipenem/relebactam susceptible; percent susceptible values for all β-lactam comparators, including carbapenems (imipenem, meropenem) were 61.5%-74.7%. Less than 20% of MDR and DTR isolates, and 41% of meropenem-non-susceptible P. aeruginosa isolates were imipenem/relebactam susceptible. Of imipenem/relebactam-resistant P. aeruginosa isolates, 61.6% carried an MBL and 37.0% did not possess any acquired β-lactamase genes. Conclusions Based on in vitro data, imipenem/relebactam, if licensed in South Korea, may be a viable treatment option for many hospitalized patients infected with common Gram-negative pathogens including NME exhibiting MDR, DTR and carbapenem resistance and many β-lactam-resistant phenotypes of P. aeruginosa.
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Affiliation(s)
- James A Karlowsky
- IHMA, Schaumburg, IL, USA
- Department of Medical Microbiology and Infectious Diseases, Max Rady College of Medicine, University of Manitoba, Winnipeg, Manitoba, Canada
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14
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Chou WC, Chen WT, Kuo CT, Chang YM, Lu YS, Li CW, Hung MC, Shen CY. Genetic insights into carbohydrate sulfotransferase 8 and its impact on the immunotherapy efficacy of cancer. Cell Rep 2024; 43:113641. [PMID: 38165805 DOI: 10.1016/j.celrep.2023.113641] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Revised: 11/12/2023] [Accepted: 12/18/2023] [Indexed: 01/04/2024] Open
Abstract
Immune checkpoint blockade (ICB) is a promising therapy for solid tumors, but its effectiveness depends on biomarkers that are not precise. Here, we utilized genome-wide association study to investigate the association between genetic variants and tumor mutation burden to interpret ICB response. We identified 16 variants (p < 5 × 10-8) probed to 17 genes on 9 chromosomes. Subsequent analysis of one of the most significant loci in 19q13.11 suggested that the rs111308825 locus at the enhancer is causal, as its A allele impairs KLF2 binding, leading to lower carbohydrate sulfotransferase 8 (CHST8) expression. Breast cancer cells expressing CHST8 suppress T cell activation, and Chst8 loss attenuates tumor growth in a syngeneic mouse model. Further investigation revealed that programmed death-ligand 1 (PD-L1) and its homologs could be sulfated by CHST8, resulting in M2-like macrophage enrichment in the tumor microenvironment. Finally, we confirmed that low-CHST8 tumors have better ICB response, supporting the genetic effect and clinical value of rs111308825 for ICB efficacy prediction.
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Affiliation(s)
- Wen-Cheng Chou
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan.
| | - Wei-Ting Chen
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
| | - Chun-Tse Kuo
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
| | - Yao-Ming Chang
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
| | - Yen-Shen Lu
- Department of Oncology, National Taiwan University Hospital, Taipei, Taiwan
| | - Chia-Wei Li
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
| | - Mien-Chie Hung
- Graduate Institute of Biomedical Sciences, Center for Molecular Medicine, China Medical University, Taichung, Taiwan
| | - Chen-Yang Shen
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan; College of Public Health, China Medical University, Taichung, Taiwan.
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Lin YW, Kao HJ, Chen WT, Kao CF, Wu JY, Chen YT, Lee YC. Cell-based screen identifies porphyrins as FGFR3 activity inhibitors with therapeutic potential for achondroplasia and cancer. JCI Insight 2023; 8:e171257. [PMID: 37824212 PMCID: PMC10721322 DOI: 10.1172/jci.insight.171257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Accepted: 10/10/2023] [Indexed: 10/14/2023] Open
Abstract
Overactive fibroblast growth factor receptor 3 (FGFR3) signaling drives pathogenesis in a variety of cancers and a spectrum of short-limbed bone dysplasias, including the most common form of human dwarfism, achondroplasia (ACH). Targeting FGFR3 activity holds great promise as a therapeutic approach for treatment of these diseases. Here, we established a receptor/adaptor translocation assay system that can specifically monitor FGFR3 activation, and we applied it to identify FGFR3 modulators from complex natural mixtures. An FGFR3-suppressing plant extract of Amaranthus viridis was identified from the screen, and 2 bioactive porphyrins, pheophorbide a (Pa) and pyropheophorbide a, were sequentially isolated from the extract and functionally characterized. Further analysis showed that Pa reduced excessive FGFR3 signaling by decreasing its half-life in FGFR3-overactivated multiple myeloma cells and chondrocytes. In an ex vivo culture system, Pa alleviated defective long bone growth in humanized ACH mice (FGFR3ACH mice). Overall, our study presents an approach to discovery and validation of plant extracts or drug candidates that target FGFR3 activation. The compounds identified by this approach may have applications as therapeutics for FGFR3-associated cancers and skeletal dysplasias.
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Affiliation(s)
- Yun-Wen Lin
- Institute of Cellular and Organismic Biology, Academia Sinica, Taipei, Taiwan
- Graduate Institute of Life Sciences, National Defense Medical Center, Taipei, Taiwan
| | - Hsiao-Jung Kao
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
| | - Wei-Ting Chen
- Institute of Cellular and Organismic Biology, Academia Sinica, Taipei, Taiwan
| | - Cheng-Fu Kao
- Institute of Cellular and Organismic Biology, Academia Sinica, Taipei, Taiwan
| | - Jer-Yuarn Wu
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
| | - Yuan-Tsong Chen
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
- Department of Pediatrics, Duke University Medical Center, Durham, North Carolina, USA
| | - Yi-Ching Lee
- Institute of Cellular and Organismic Biology, Academia Sinica, Taipei, Taiwan
- Graduate Institute of Life Sciences, National Defense Medical Center, Taipei, Taiwan
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Su CW, Teng W, Lin PT, Wu TH, Hsu YC, Hsieh YC, Huang CH, Chen WT, Lin CC, Lin CY, Lin SM. A combination of locoregional treatment with systemic therapy after atezolizumab plus bevacizumab failure for unresectable hepatocellular carcinoma provides survival benefit. Am J Cancer Res 2023; 13:5482-5492. [PMID: 38058809 PMCID: PMC10695777] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2023] [Accepted: 10/28/2023] [Indexed: 12/08/2023] Open
Abstract
Atezolizumab plus bevacizumab (A+B) is used to treat unresectable hepatocellular carcinoma (HCC), but the optimal rescue therapy after A+B remains unclear. Combining locoregional therapy (LRT) with systemic treatment has been shown to improve tumor control, but the role in patients who fail A+B is unknown. We retrospectively enrolled patients who experienced radiological progression after A+B. Objective response rate (ORR), disease control rate (DCR), post progression survival (PPS), and secondary progression-free survival (PFS) were evaluated by modified RECIST. Inverse probability weighting (IPW) was used to balance baseline clinical features. A total of 61 patients were enrolled with a median age of 60.7 years, 83.6% male, 88.5% viral hepatitis-related, and 60.7% without prior systemic treatment before A+B. Patients receiving sequential therapies had significantly longer PPS than supportive care (10.5 vs. 2.3 months, P<0.0001). Among 37 patients received sequential systemic treatment, 18 received combined LRT. The median follow-up after post A+B failure was 6.6 months. The combined LRT group had higher ORR (27.8 vs. 0%, P=0.0197) and DCR (72.2 vs. 26.3%, P=0.0052) than systemic alone group. The median PPS and secondary PFS were significantly longer in combined LRT group (PPS: 12.2 vs. 5.8 months, P=0.0070; PFS: 5.0 vs. 2.6 months, P=0.0134) than systemic alone group. After IPW analysis, patients with combined LRT had superior PPS and secondary PFS. The incidence rates of AEs were higher in LRT combination compared to systemic alone (any grade AEs: 94.4 vs. 63.2%, P=0.0422; severe AEs: 33.3 vs. 5.3%, P=0.0422). No significant albumin-bilirubin index changed in the first 3 months in combined LRT group (0.966 [0.647-1.443], P=0.867) though a trend of deterioration in systemic alone group. In conclusion, sequential systemic therapy provides survival benefits after A+B failure. Furthermore, combining LRT with systemic treatment could provide better tumor responses and survival benefits with acceptable toxicity than systemic therapy alone.
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Affiliation(s)
- Chung-Wei Su
- Department of Gastroenterology and Hepatology, Chang Gung Memorial Hospital, Linkou Medical CenterTaoyuan, Taiwan
- College of Medicine, Chang Gung UniversityTaoyuan, Taiwan
| | - Wei Teng
- Department of Gastroenterology and Hepatology, Chang Gung Memorial Hospital, Linkou Medical CenterTaoyuan, Taiwan
- College of Medicine, Chang Gung UniversityTaoyuan, Taiwan
| | - Po-Ting Lin
- Department of Gastroenterology and Hepatology, Chang Gung Memorial Hospital, Linkou Medical CenterTaoyuan, Taiwan
- College of Medicine, Chang Gung UniversityTaoyuan, Taiwan
| | - Tsung-Han Wu
- College of Medicine, Chang Gung UniversityTaoyuan, Taiwan
- Department of General Surgery, Chang Gung Memorial Hospital, Linkou Medical CenterTaoyuan, Taiwan
| | - Yu-Chun Hsu
- Department of Gastroenterology and Hepatology, Chang Gung Memorial Hospital, Linkou Medical CenterTaoyuan, Taiwan
- College of Medicine, Chang Gung UniversityTaoyuan, Taiwan
| | - Yi-Chung Hsieh
- Department of Gastroenterology and Hepatology, Chang Gung Memorial Hospital, Linkou Medical CenterTaoyuan, Taiwan
- College of Medicine, Chang Gung UniversityTaoyuan, Taiwan
| | - Chien-Hao Huang
- Department of Gastroenterology and Hepatology, Chang Gung Memorial Hospital, Linkou Medical CenterTaoyuan, Taiwan
- College of Medicine, Chang Gung UniversityTaoyuan, Taiwan
| | - Wei-Ting Chen
- Department of Gastroenterology and Hepatology, Chang Gung Memorial Hospital, Linkou Medical CenterTaoyuan, Taiwan
- College of Medicine, Chang Gung UniversityTaoyuan, Taiwan
| | - Chen-Chun Lin
- College of Medicine, Chang Gung UniversityTaoyuan, Taiwan
- Department of Gastroenterology and Hepatology, New Taipei Municiplal Tucheng Hospital (Built and Operated by Chang Gung Memorial Hospital)Taiwan
| | - Chun-Yen Lin
- Department of Gastroenterology and Hepatology, Chang Gung Memorial Hospital, Linkou Medical CenterTaoyuan, Taiwan
- College of Medicine, Chang Gung UniversityTaoyuan, Taiwan
| | - Shi-Ming Lin
- Department of Gastroenterology and Hepatology, Chang Gung Memorial Hospital, Linkou Medical CenterTaoyuan, Taiwan
- College of Medicine, Chang Gung UniversityTaoyuan, Taiwan
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Lin SH, Chen WT, Tsai MH, Kuo WL, Wang SF, Liu Y, Chiu YT, Chen BH, Huang CH, Chien RN. Comparing Three Profoundly Influential Prognostic Scores in Cirrhotic Patients with Acute-on-Chronic-Liver Failure Admitted to the ICU: Prediction of One-Month Mortality-A Retrospective Cohort Study. Diagnostics (Basel) 2023; 13:3160. [PMID: 37891981 PMCID: PMC10606040 DOI: 10.3390/diagnostics13203160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2023] [Revised: 10/04/2023] [Accepted: 10/07/2023] [Indexed: 10/29/2023] Open
Abstract
BACKGROUND Acute-on-chronic-liver failure (ACLF) demonstrates high short-term mortality rates and usually requires intensive care unit (ICU) admission. Accurate prognostication of these patients is pivotal for timely referral for liver transplantation. The superiority of CLIF-C ACLF, CLIF-C ACLF lactate, and NACSELD-ACLF scores in Asian patients with ACLF admitted to an ICU remains inconclusive. AIMS To compare the predictive performance of CLIF-C ACLF, CLIF-C ACLF lactate, and NACSELD-ACLF scores for one-month mortality. METHODS 276 consecutive cirrhotic patients with ACLF admitted to ICU were enrolled. The prognostic values for one-month mortality were assessed by AUROC analysis. RESULTS The primary cause of cirrhosis in this cohort was alcohol abuse (56.5%). AUROC analysis (95% confidence intervals) demonstrated that CLIF-C ACLF lactate [0.802 (0.747-0.856)] outperformed both CLIF-C ACLF [0.791 (0.733-0.848)] and NACSELD-ACLF [0.673 (0.606-0.740)] in predicting one-month mortality. However, no statistically significant difference was observed between the predictive abilities of CLIF-C ACLF and CLIF-C ACLF lactate. CONCLUSIONS In critically ill cirrhotic patients with ACLF admitted to the hepatology ICU, CLIF ACLF-lactate outperformed CLIF-C ACLF and NACSELD-ACLF in predicting one-month mortality. Nevertheless, no statistically significant difference was observed between CLIF-C ACLF and CLIF-C ACLF lactate. Larger-scale multi-center prospective studies are warranted to validate these results.
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Affiliation(s)
- Shih-Hua Lin
- Department of Gastroenterology and Hepatology, New Taipei Municipal TuCheng Hospital, Tucheng, New Taipei City 236, Taiwan; (S.-H.L.); (Y.L.); (Y.-T.C.)
| | - Wei-Ting Chen
- Division of Hepatology, Department of Gastroenterology and Hepatology, Linkou Chang-Gung Memorial Hospital, Taoyuan 333, Taiwan
- College of Medicine, Chang-Gung University, Taoyuan 333, Taiwan
| | - Ming-Hung Tsai
- Division of Hepatology, Department of Gastroenterology and Hepatology, Linkou Chang-Gung Memorial Hospital, Taoyuan 333, Taiwan
- College of Medicine, Chang-Gung University, Taoyuan 333, Taiwan
| | - Wei-Liang Kuo
- Division of Hepatology, Department of Gastroenterology and Hepatology, Linkou Chang-Gung Memorial Hospital, Taoyuan 333, Taiwan
| | - Sheng-Fu Wang
- Division of Hepatology, Department of Gastroenterology and Hepatology, Linkou Chang-Gung Memorial Hospital, Taoyuan 333, Taiwan
| | - Yu Liu
- Department of Gastroenterology and Hepatology, New Taipei Municipal TuCheng Hospital, Tucheng, New Taipei City 236, Taiwan; (S.-H.L.); (Y.L.); (Y.-T.C.)
| | - Yu-Ting Chiu
- Department of Gastroenterology and Hepatology, New Taipei Municipal TuCheng Hospital, Tucheng, New Taipei City 236, Taiwan; (S.-H.L.); (Y.L.); (Y.-T.C.)
| | - Bo-Huan Chen
- Division of Hepatology, Department of Gastroenterology and Hepatology, Linkou Chang-Gung Memorial Hospital, Taoyuan 333, Taiwan
| | - Chien-Hao Huang
- Division of Hepatology, Department of Gastroenterology and Hepatology, Linkou Chang-Gung Memorial Hospital, Taoyuan 333, Taiwan
- College of Medicine, Chang-Gung University, Taoyuan 333, Taiwan
| | - Rong-Nan Chien
- Department of Gastroenterology and Hepatology, New Taipei Municipal TuCheng Hospital, Tucheng, New Taipei City 236, Taiwan; (S.-H.L.); (Y.L.); (Y.-T.C.)
- Division of Hepatology, Department of Gastroenterology and Hepatology, Linkou Chang-Gung Memorial Hospital, Taoyuan 333, Taiwan
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Chen WT, Chiu PY, Chen CF. A flash signal amplification approach for ultrasensitive and rapid detection of single nucleotide polymorphisms in tuberculosis. Biosens Bioelectron 2023; 237:115514. [PMID: 37423064 DOI: 10.1016/j.bios.2023.115514] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 06/29/2023] [Accepted: 07/03/2023] [Indexed: 07/11/2023]
Abstract
In recent years, the demand for rapid, sensitive, and simple methods for diagnosing deoxyribonucleic acid (DNA) has grown due to the increase in the variation of infectious diseases. This work aimed to develop a flash signal amplification method coupled with electrochemical detection for polymerase chain reaction (PCR)-free tuberculosis (TB) molecular diagnosis. We exploited the slightly miscible properties of butanol and water to instantly concentrate a capture probe DNA, a single-stranded mismatch DNA, and gold nanoparticles (AuNPs) to a small volume to reduce the diffusion and reaction time in the solution. In addition, the electrochemical signal was enhanced once two strands of DNA were hybridized and bound to the surface of the gold nanoparticle at an ultra-high density. To eliminate non-specific adsorption and identify mismatched DNA, the self-assembled monolayers (SAMs) and Muts proteins were sequentially modified on the working electrode. This sensitive and specific approach can detect as low as attomolar levels of DNA targets (18 aM) and is successfully applied to detecting tuberculosis-associated single nucleotide polymorphisms (SNPs) in synovial fluid. More importantly, as this biosensing strategy can amplify the signal in only a few seconds, it possesses a great potential for point-of-care and molecular diagnosis applications.
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Affiliation(s)
- Wei-Ting Chen
- Institute of Applied Mechanics, National Taiwan University, Taipei, 106, Taiwan
| | - Ping-Yeh Chiu
- Institute of Applied Mechanics, National Taiwan University, Taipei, 106, Taiwan; Department of Orthopaedic Surgery, Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Taoyuan, 333, Taiwan
| | - Chien-Fu Chen
- Institute of Applied Mechanics, National Taiwan University, Taipei, 106, Taiwan; Graduate School of Advanced Technology, National Taiwan University, Taipei, 106, Taiwan.
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Balusu S, Horré K, Thrupp N, Craessaerts K, Snellinx A, Serneels L, T’Syen D, Chrysidou I, Arranz AM, Sierksma A, Simrén J, Karikari TK, Zetterberg H, Chen WT, Thal DR, Salta E, Fiers M, De Strooper B. MEG3 activates necroptosis in human neuron xenografts modeling Alzheimer's disease. Science 2023; 381:1176-1182. [PMID: 37708272 PMCID: PMC7615236 DOI: 10.1126/science.abp9556] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Accepted: 08/14/2023] [Indexed: 09/16/2023]
Abstract
Neuronal cell loss is a defining feature of Alzheimer's disease (AD), but the underlying mechanisms remain unclear. We xenografted human or mouse neurons into the brain of a mouse model of AD. Only human neurons displayed tangles, Gallyas silver staining, granulovacuolar neurodegeneration (GVD), phosphorylated tau blood biomarkers, and considerable neuronal cell loss. The long noncoding RNA MEG3 was strongly up-regulated in human neurons. This neuron-specific long noncoding RNA is also up-regulated in AD patients. MEG3 expression alone was sufficient to induce necroptosis in human neurons in vitro. Down-regulation of MEG3 and inhibition of necroptosis using pharmacological or genetic manipulation of receptor-interacting protein kinase 1 (RIPK1), RIPK3, or mixed lineage kinase domain-like protein (MLKL) rescued neuronal cell loss in xenografted human neurons. This model suggests potential therapeutic approaches for AD and reveals a human-specific vulnerability to AD.
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Affiliation(s)
- Sriram Balusu
- VIB-KU Leuven Center for Brain and Disease Research, 3000 Leuven, Belgium
- Leuven Brain Institute, KU Leuven, 3000 Leuven, Belgium
| | - Katrien Horré
- VIB-KU Leuven Center for Brain and Disease Research, 3000 Leuven, Belgium
- Leuven Brain Institute, KU Leuven, 3000 Leuven, Belgium
| | - Nicola Thrupp
- VIB-KU Leuven Center for Brain and Disease Research, 3000 Leuven, Belgium
- Leuven Brain Institute, KU Leuven, 3000 Leuven, Belgium
| | - Katleen Craessaerts
- VIB-KU Leuven Center for Brain and Disease Research, 3000 Leuven, Belgium
- Leuven Brain Institute, KU Leuven, 3000 Leuven, Belgium
| | - An Snellinx
- VIB-KU Leuven Center for Brain and Disease Research, 3000 Leuven, Belgium
- Leuven Brain Institute, KU Leuven, 3000 Leuven, Belgium
| | - Lutgarde Serneels
- VIB-KU Leuven Center for Brain and Disease Research, 3000 Leuven, Belgium
- Leuven Brain Institute, KU Leuven, 3000 Leuven, Belgium
| | - Dries T’Syen
- VIB-KU Leuven Center for Brain and Disease Research, 3000 Leuven, Belgium
- Leuven Brain Institute, KU Leuven, 3000 Leuven, Belgium
| | - Iordana Chrysidou
- VIB-KU Leuven Center for Brain and Disease Research, 3000 Leuven, Belgium
- Leuven Brain Institute, KU Leuven, 3000 Leuven, Belgium
| | - Amaia M. Arranz
- Achucarro Basque Center for Neuroscience, 48940 Leioa, Spain
- Ikerbasque Basque Foundation for Science, 48009 Bilbao, Spain
| | - Annerieke Sierksma
- VIB-KU Leuven Center for Brain and Disease Research, 3000 Leuven, Belgium
- Leuven Brain Institute, KU Leuven, 3000 Leuven, Belgium
| | - Joel Simrén
- Clinical Neurochemistry Laboratory, Sahlgrenska University Hospital, 431 80 Möndal, Sweden
- Department of Psychiatry and Neurochemistry, Sahlgrenska Academy at the University of Gothenburg, 431 80 Möndal, Sweden
| | - Thomas K. Karikari
- Clinical Neurochemistry Laboratory, Sahlgrenska University Hospital, 431 80 Möndal, Sweden
- Department of Psychiatry and Neurochemistry, Sahlgrenska Academy at the University of Gothenburg, 431 80 Möndal, Sweden
- Department of Psychiatry, University of Pittsburgh, Pittsburgh, PA 15213, USA
| | - Henrik Zetterberg
- Clinical Neurochemistry Laboratory, Sahlgrenska University Hospital, 431 80 Möndal, Sweden
- Department of Psychiatry and Neurochemistry, Sahlgrenska Academy at the University of Gothenburg, 431 80 Möndal, Sweden
- Department of Neurodegenerative Disease, University College London (UCL) Institute of Neurology, London WC1N 3BG, UK
- UK Dementia Research Institute at UCL, London WC1E 6BT, UK
- Hong Kong Center for Neurodegenerative Diseases, Hong Kong, China
| | - Wei-Ting Chen
- VIB-KU Leuven Center for Brain and Disease Research, 3000 Leuven, Belgium
- Leuven Brain Institute, KU Leuven, 3000 Leuven, Belgium
| | - Dietmar Rudolf Thal
- Laboratory for Neuropathology, Department of Imaging and Pathology, Leuven Brain Institute, KU Leuven, 3000 Leuven, Belgium
- Department of Pathology, University Hospital Leuven, 3000 Leuven, Belgium
| | - Evgenia Salta
- Laboratory of Neurogenesis and Neurodegeneration, Netherlands Institute for Neuroscience, 1105BA Amsterdam, Netherlands
| | - Mark Fiers
- VIB-KU Leuven Center for Brain and Disease Research, 3000 Leuven, Belgium
- Leuven Brain Institute, KU Leuven, 3000 Leuven, Belgium
- UK Dementia Research Institute at UCL, London WC1E 6BT, UK
| | - Bart De Strooper
- VIB-KU Leuven Center for Brain and Disease Research, 3000 Leuven, Belgium
- Leuven Brain Institute, KU Leuven, 3000 Leuven, Belgium
- UK Dementia Research Institute at UCL, London WC1E 6BT, UK
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Karlowsky JA, Lob SH, Chen WT, DeRyke CA, Siddiqui F, Young K, Motyl MR, Sahm DF. In vitro activity of imipenem/relebactam against non-Morganellaceae Enterobacterales and Pseudomonas aeruginosa in the Asia-Pacific region: SMART 2017-2020. Int J Antimicrob Agents 2023; 62:106900. [PMID: 37354921 DOI: 10.1016/j.ijantimicag.2023.106900] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Revised: 06/08/2023] [Accepted: 06/20/2023] [Indexed: 06/26/2023]
Abstract
OBJECTIVES To describe the in vitro activity of imipenem/relebactam (IMR) against non-Morganellaceae Enterobacterales (NME) and Pseudomonas aeruginosa, including piperacillin/tazobactam-nonsusceptible and meropenem-nonsusceptible isolates, infecting hospitalized patients in the Asia-Pacific region. METHODS From 2017 to 2020, 49 clinical laboratories in nine countries in the Asia-Pacific region participated in the SMART global surveillance program and contributed 26 783 NME and 6383 P. aeruginosa. Minimum inhibitory concentrations (MICs) were determined using CLSI broth microdilution and interpreted using CLSI M100 (2021) breakpoints. β-Lactamase genes were identified in selected isolate subsets (2017-2020) and oprD was sequenced in molecularly characterized P. aeruginosa collected in 2020. RESULTS Amikacin (97.9% susceptible), IMR (95.8%), meropenem (95.4%), and imipenem (92.6%) were the most active agents against NME. Among piperacillin/tazobactam-nonsusceptible NME (n=4070), 76.1% were IMR-susceptible (range by country, 97.5% [New Zealand] to 50.6% [Vietnam]); 22.4% of meropenem-nonsusceptible NME (n=1225) were IMR-susceptible (range by country, 68.8% [South Korea] to 7.6% [Thailand]). A total of 2.7% of NME carried a metallo-β-lactamase (MBL), 0.9% an OXA-48-like carbapenemase (MBL-negative), and 0.7% a KPC (MBL-negative). Amikacin (94.0% susceptible) and IMR (90.3%) were the most active agents against P. aeruginosa; 71.2% of isolates were imipenem-susceptible. Relebactam increased susceptibility to imipenem by 25.6% (from 40.5% to 66.1%) in piperacillin/tazobactam-nonsusceptible and by 44.8% (from 7.1% to 51.9%) in meropenem-nonsusceptible P. aeruginosa. Only 4.3% of P. aeruginosa were MBL-positive. A total of 70.3% (90/128) of IMR-nonsusceptible P. aeruginosa were oprD-deficient. CONCLUSION In 2017-2020, 96% of NME and 90% of P. aeruginosa from the Asia-Pacific region were IMR-susceptible. IMR percent susceptible rates were higher in countries with lower MBL carriage.
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Affiliation(s)
- James A Karlowsky
- IHMA, 2122 Palmer Drive, Schaumburg, IL, 60173, USA; Department of Medical Microbiology and Infectious Diseases, Max Rady College of Medicine, University of Manitoba, Room 543-745 Bannatyne Avenue, Winnipeg, Manitoba, R3E 0J9, Canada
| | - Sibylle H Lob
- IHMA, 2122 Palmer Drive, Schaumburg, IL, 60173, USA.
| | - Wei-Ting Chen
- MSD, 12F, No. 106, Xin Yi Road, Sec 5, Taipei 11047, Taiwan
| | - C Andrew DeRyke
- Merck & Co., Inc., 126 East Lincoln Avenue, Rahway, NJ 07065, USA
| | - Fakhar Siddiqui
- Merck & Co., Inc., 126 East Lincoln Avenue, Rahway, NJ 07065, USA
| | - Katherine Young
- Merck & Co., Inc., 126 East Lincoln Avenue, Rahway, NJ 07065, USA
| | - Mary R Motyl
- Merck & Co., Inc., 126 East Lincoln Avenue, Rahway, NJ 07065, USA
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21
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Karlowsky JA, Wise MG, Hsieh TC, Lu HC, Chen WT, Cheng MH, Siddiqui F, Young K, Motyl MR, Sahm DF. Temporal and geographical prevalence of carbapenem-resistant Pseudomonas aeruginosa and the in vitro activity of ceftolozane/tazobactam and comparators in Taiwan-SMART 2012-2021. J Glob Antimicrob Resist 2023; 34:106-112. [PMID: 37419182 DOI: 10.1016/j.jgar.2023.06.013] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Revised: 06/26/2023] [Accepted: 06/29/2023] [Indexed: 07/09/2023] Open
Abstract
OBJECTIVES To determine the in vitro activities of ceftolozane/tazobactam (C/T) and comparators against Pseudomonas aeruginosa isolates cultured from hospitalised patient samples in Taiwan from 2012 to 2021 with an additional focus on the temporal and geographical prevalence of carbapenem-resistant P. aeruginosa (CRPA). METHODS P. aeruginosa isolates (n = 3013) were collected annually by clinical laboratories in northern (two medical centres), central (three medical centres), and southern Taiwan (four medical centres) as part of the SMART global surveillance program. MICs were determined by CLSI broth microdilution and interpreted using 2022 CLSI breakpoints. Molecular β-lactamase gene identification was performed on selected non-susceptible isolate subsets in 2015 and later. RESULTS Overall, 520 (17.3%) CRPA isolates were identified. The prevalence of CRPA increased from 11.5%-12.3% (2012-2015) to 19.4%-22.8% (2018-2021) (P ≤ 0.0001). Medical centres in northern Taiwan reported the highest percentages of CRPA. C/T, first tested in the SMART program in 2016, was highly active against all P. aeruginosa (97% susceptible), with annual susceptibility rates ranging from 94% (2017) to 99% (2020). Against CRPA, C/T inhibited >90% of isolates each year, with the exception of 2017 (79.4% susceptible). Most CRPA isolates (83%) were molecularly characterised, and only 2.1% (9/433) carried a carbapenemase (most commonly, VIM); all nine carbapenemase-positive isolates were from northern and central Taiwan. CONCLUSION The prevalence of CRPA increased significantly in Taiwan from 2012 to 2021 and warrants continued monitoring. In 2021, 97% of all P. aeruginosa and 92% of CRPA in Taiwan were C/T susceptible. Routine in vitro susceptibility testing of clinical isolates of P. aeruginosa against C/T, and other newer β-lactam/β-lactamase inhibitor combinations, appears prudent.
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Affiliation(s)
- James A Karlowsky
- IHMA, Schaumburg, Illinois; Department of Medical Microbiology and Infectious Diseases, Max Rady College of Medicine, University of Manitoba, Winnipeg, Canada
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Cheng JS, Chen WT, Ku HP, Chien RN, Chang ML. Characteristic geoepidemiology of primary biliary cholangitis in Taiwan: A nationwide population-based study. Hepatol Res 2023; 53:866-877. [PMID: 37060573 DOI: 10.1111/hepr.13910] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Revised: 03/25/2023] [Accepted: 04/06/2023] [Indexed: 04/16/2023]
Abstract
AIM Data on the geoepidemiology and outcomes of primary biliary cholangitis (PBC) in Asia are limited; thus, we aimed to collect and assess this information for Taiwan. METHODS A nationwide population-based cohort study was undertaken using data from the Taiwan National Health Insurance Research Database. Primary biliary cholangitis was defined by the International Classification of Diseases, Ninth Revision, Clinical Modification code 571.6 based on alkaline phosphatase and antimitochondrial antibody measurements and ursodeoxycholic acid treatment. RESULTS During 2002-2015, 2737 patients (2137 female patients; mean age, 57.78 years) had PBC. The average annual age- and sex-adjusted prevalence and incidence rates of PBC were 8.092/105 and 1.148/105 , respectively. Prevalent cases peaked in patients aged 50-59 years; the female-to-male ratio was 4.21. Annual prevalence rates increased with time (average percentage change, 12.03%; p < 0.0001). The annual incidence rates decreased with time (-7.39%; p = 0.000011) in female patients (-8.94%; p = 0.000003) but remained steady in male patients. Female-to-male and northern-to-southern relative risks of PBC incidence rates ranged from 2.2675 to 4.3318 and from 1.5707 to 3.1725, respectively. The 14-year hepatocellular carcinoma (HCC) cumulative incidence was 9.11%, and the mortality rate was 32.44%; the cumulative incidences of dyslipidemia, thyroid disease, and extrahepatic cancers were 65.13%, 24.40%, and 12.79%, respectively. Higher cumulative incidences of HCC (p = 0.0064) and mortality (p < 0.0001) were noted in male than female PBC patients; southern Taiwan PBC patients had higher cumulative incidences of mortality (p < 0.0001) than their northern counterparts. CONCLUSION In Taiwan, decreasing trends in incidence rates and the female-to-male ratio of PBC patients and specific sex and geographic impacts on the incidence rates and outcomes of PBC demand further investigation.
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Affiliation(s)
- Jur-Shan Cheng
- Clinical Informatics and Medical Statistics Research Center, College of Medicine, Chang Gung University, Keelung, Taiwan
- Division of Hepatology, Department of Gastroenterology and Hepatology, Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - Wei-Ting Chen
- Division of Hepatology, Department of Gastroenterology and Hepatology, Chang Gung Memorial Hospital, Taoyuan, Taiwan
- Department of Medicine, College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Hsin-Ping Ku
- Clinical Informatics and Medical Statistics Research Center, College of Medicine, Chang Gung University, Keelung, Taiwan
| | - Rong-Nan Chien
- Division of Hepatology, Department of Gastroenterology and Hepatology, Chang Gung Memorial Hospital, Taoyuan, Taiwan
- Department of Medicine, College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Ming-Ling Chang
- Division of Hepatology, Department of Gastroenterology and Hepatology, Chang Gung Memorial Hospital, Taoyuan, Taiwan
- Department of Medicine, College of Medicine, Chang Gung University, Taoyuan, Taiwan
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Lin YT, Lin PT, Lin CC, Wu TH, Liu LT, Su CW, Teng W, Tsai CY, Huang CH, Chen WT, Chan KM, Hsu CW, Lin CY, Lin SM, Chien RN. Adding nutritional status to the original BCLC stage improves mortality prediction for hepatocellular carcinoma patients in HBV-endemic regions. Am J Cancer Res 2023; 13:3618-3628. [PMID: 37693156 PMCID: PMC10492128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Accepted: 07/25/2023] [Indexed: 09/12/2023] Open
Abstract
Hepatocellular carcinoma (HCC) is associated with high mortality, especially in Asian populations where chronic HBV infection is a major cause. Accurate prediction of mortality can assist clinical decision-making. We aim to (i) compare the predicting ability of Barcelona Clinic Liver Cancer classification (BCLC) stage, neutrophil-to-lymphocyte ratio (NLR), and Albumin-Bilirubin (ALBI) score in predicting short-term mortality (one- and two-year) and (ii) develop a novel model with improved accuracy compared to the conventional models. This study enrolled 298 consecutive HCC patients from our hepatology department. The prognostic values for mortality were assessed by area under the receiver operating characteristic curve (AUROC) analysis. A novel model was established and internally validated using 5-fold cross-validation, followed by external validation in a cohort of 100 patients. The primary etiology of cirrhosis was hepatitis B virus (HBV), with 81.2% of HCC patients having preserved liver function. Significant differences were observed in hemoglobin (Hb) and serum albumin levels, which reflect patients' nutrition status, between patients who survived for one year and those who died. BCLC exhibited superior predictive accuracy compared to NLR but had borderline superiority to the ALBI score. Therefore, a novel model incorporating BCLC, Hb, and serum albumin was developed, internally and externally validated, as well as subgroup sensitivity analysis. The model exhibited significantly higher predictive accuracy for one- and two-year mortality than conventional prognostic predictors, with AUROC values of 0.841 and 0.805, respectively. The novel "BCLC-Nutrition Model", which incorporates BCLC, Hb, and serum albumin, may provide improved predictive accuracy for short-term mortality in HCC patients compared to commonly used prognostic scores. This emphasizes the importance of nutrition in the management of HCC patients.
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Affiliation(s)
- Yan-Ting Lin
- Division of Hepatology, Department of Gastroenterology and Hepatology, Chang-Gung Memorial Hospital, Linkou Medical CenterTaoyuan, Taiwan
| | - Po-Ting Lin
- Division of Hepatology, Department of Gastroenterology and Hepatology, Chang-Gung Memorial Hospital, Linkou Medical CenterTaoyuan, Taiwan
- College of Medicine, Chang-Gung UniversityTaoyuan, Taiwan
| | - Chen-Chun Lin
- Division of Hepatology, Department of Gastroenterology and Hepatology, Chang-Gung Memorial Hospital, Linkou Medical CenterTaoyuan, Taiwan
- College of Medicine, Chang-Gung UniversityTaoyuan, Taiwan
| | - Tsung-Han Wu
- College of Medicine, Chang-Gung UniversityTaoyuan, Taiwan
- Department of General Surgery, Chang-Gung Memorial Hospital, Linkou Medical CenterTaoyuan, Taiwan
| | - Li-Tong Liu
- Division of Hepatology, Department of Gastroenterology and Hepatology, Chang-Gung Memorial Hospital, Linkou Medical CenterTaoyuan, Taiwan
| | - Chung-Wei Su
- Division of Hepatology, Department of Gastroenterology and Hepatology, Chang-Gung Memorial Hospital, Linkou Medical CenterTaoyuan, Taiwan
- College of Medicine, Chang-Gung UniversityTaoyuan, Taiwan
| | - Wei Teng
- Division of Hepatology, Department of Gastroenterology and Hepatology, Chang-Gung Memorial Hospital, Linkou Medical CenterTaoyuan, Taiwan
- College of Medicine, Chang-Gung UniversityTaoyuan, Taiwan
| | - Chun-Yi Tsai
- College of Medicine, Chang-Gung UniversityTaoyuan, Taiwan
- Department of General Surgery, Chang-Gung Memorial Hospital, Linkou Medical CenterTaoyuan, Taiwan
| | - Chien-Hao Huang
- Division of Hepatology, Department of Gastroenterology and Hepatology, Chang-Gung Memorial Hospital, Linkou Medical CenterTaoyuan, Taiwan
- College of Medicine, Chang-Gung UniversityTaoyuan, Taiwan
| | - Wei-Ting Chen
- Division of Hepatology, Department of Gastroenterology and Hepatology, Chang-Gung Memorial Hospital, Linkou Medical CenterTaoyuan, Taiwan
- College of Medicine, Chang-Gung UniversityTaoyuan, Taiwan
| | - Kun-Ming Chan
- College of Medicine, Chang-Gung UniversityTaoyuan, Taiwan
- Department of General Surgery, Chang-Gung Memorial Hospital, Linkou Medical CenterTaoyuan, Taiwan
| | - Chao-Wei Hsu
- Division of Hepatology, Department of Gastroenterology and Hepatology, Chang-Gung Memorial Hospital, Linkou Medical CenterTaoyuan, Taiwan
- College of Medicine, Chang-Gung UniversityTaoyuan, Taiwan
| | - Chun-Yen Lin
- Division of Hepatology, Department of Gastroenterology and Hepatology, Chang-Gung Memorial Hospital, Linkou Medical CenterTaoyuan, Taiwan
- College of Medicine, Chang-Gung UniversityTaoyuan, Taiwan
| | - Shi-Ming Lin
- Division of Hepatology, Department of Gastroenterology and Hepatology, Chang-Gung Memorial Hospital, Linkou Medical CenterTaoyuan, Taiwan
- College of Medicine, Chang-Gung UniversityTaoyuan, Taiwan
| | - Rong-Nan Chien
- Division of Hepatology, Department of Gastroenterology and Hepatology, Chang-Gung Memorial Hospital, Linkou Medical CenterTaoyuan, Taiwan
- College of Medicine, Chang-Gung UniversityTaoyuan, Taiwan
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Lin GB, Chen WT, Kuo YY, Chen YM, Liu HH, Chao CY. Protection of high-frequency low-intensity pulsed electric fields and brain-derived neurotrophic factor for SH-SY5Y cells against hydrogen peroxide-induced cell damage. Medicine (Baltimore) 2023; 102:e34460. [PMID: 37543811 PMCID: PMC10403004 DOI: 10.1097/md.0000000000034460] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 08/07/2023] Open
Abstract
Neurodegenerative diseases (NDDs) pose a significant global health threat. In particular, Alzheimer disease, the most common type causing dementia, remains an incurable disease. Alzheimer disease is thought to be associated with an imbalance of reactive oxygen species (ROS) in neurons, and scientists considered ROS modulation as a promising strategy for novel remedies. In the study, human neural cell line SH-SY5Y was used in probing the effect of combining noninvasive high-frequency low-intensity pulsed electric field (H-LIPEF) and brain-derived neurotrophic factor (BDNF) in protection against hydrogen peroxide (H2O2)-induced neuron damage. Our result finds that the combination approach has intensified the neuroprotective effect significantly, perhaps due to H-LIPEF and BDNF synergistically increasing the expression level of the phosphorylated epidermal growth factor receptor (p-EGFR), which induces the survival-related mitogen-activated protein kinases (MAPK) proteins. The study confirmed the activation of extracellular signal-regulated kinase (ERK) and the downstream pro-survival and antioxidant proteins as the mechanism underlying neuron protection. These findings highlighted the potential of H-LIPEF combined with BDNF in the treatment of NDDs. Furthermore, BDNF-mimetic drugs combining with noninvasive H-LIPEF to patients is a promising approach worthy of further research. This points to strategies for selecting drugs to cooperate with electric fields in treating neurodegenerative disorders.
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Affiliation(s)
- Guan-Bo Lin
- Biomedical & Molecular Imaging Center, National Taiwan University College of Medicine, Taipei, Taiwan
- Department of Physics, Lab for Medical Physics & Biomedical Engineering, National Taiwan University, Taipei, Taiwan
| | - Wei-Ting Chen
- Biomedical & Molecular Imaging Center, National Taiwan University College of Medicine, Taipei, Taiwan
- Department of Physics, Lab for Medical Physics & Biomedical Engineering, National Taiwan University, Taipei, Taiwan
| | - Yu-Yi Kuo
- Biomedical & Molecular Imaging Center, National Taiwan University College of Medicine, Taipei, Taiwan
- Department of Physics, Lab for Medical Physics & Biomedical Engineering, National Taiwan University, Taipei, Taiwan
| | - You-Ming Chen
- Biomedical & Molecular Imaging Center, National Taiwan University College of Medicine, Taipei, Taiwan
- Graduate Institute of Applied Physics, Biophysics Division, National Taiwan University, Taipei, Taiwan
| | - Hsu-Hsiang Liu
- Biomedical & Molecular Imaging Center, National Taiwan University College of Medicine, Taipei, Taiwan
- Graduate Institute of Applied Physics, Biophysics Division, National Taiwan University, Taipei, Taiwan
| | - Chih-Yu Chao
- Biomedical & Molecular Imaging Center, National Taiwan University College of Medicine, Taipei, Taiwan
- Department of Physics, Lab for Medical Physics & Biomedical Engineering, National Taiwan University, Taipei, Taiwan
- Graduate Institute of Applied Physics, Biophysics Division, National Taiwan University, Taipei, Taiwan
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Lin YT, Chen WT, Wu TH, Liu Y, Liu LT, Teng W, Hsieh YC, Wu YM, Huang CH, Hsu CW, Chien RN. A Validated Composite Score Demonstrates Potential Superiority to MELD-Based Systems in Predicting Short-Term Survival in Patients with Liver Cirrhosis and Spontaneous Bacterial Peritonitis-A Preliminary Study. Diagnostics (Basel) 2023; 13:2578. [PMID: 37568941 PMCID: PMC10417459 DOI: 10.3390/diagnostics13152578] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 07/22/2023] [Accepted: 07/25/2023] [Indexed: 08/13/2023] Open
Abstract
BACKGROUND Spontaneous bacterial peritonitis (SBP) is a severe complication in cirrhosis patients with ascites, leading to high mortality rates if not promptly treated. However, specific prediction models for SBP are lacking. AIMS This study aimed to compare commonly used cirrhotic prediction models (CTP score, MELD, MELD-Na, iMELD, and MELD 3.0) for short-term mortality prediction and develop a novel model to improve mortality prediction. METHODS Patients with the first episode of SBP were included. Prognostic values for mortality were assessed using AUROC analysis. A novel prediction model was developed and validated. RESULTS In total, 327 SBP patients were analyzed, with HBV infection as the main etiologies. MELD 3.0 demonstrated the highest AUROC among the traditional models. The novel model, incorporating HRS, exhibited superior predictive accuracy for in-hospital in all patients and 3-month mortality in HBV-cirrhosis, with AUROC values of 0.827 and 0.813 respectively, surpassing 0.8. CONCLUSIONS MELD 3.0 score outperformed the CTP score and showed a non-significant improvement compared to other MELD-based scores, while the novel SBP model demonstrated impressive accuracy. Internal validation and an HBV-related cirrhosis subgroup sensitivity analysis supported these findings, highlighting the need for a specific prognostic model for SBP and the importance of preventing HRS development to improve SBP prognosis.
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Affiliation(s)
- Yan-Ting Lin
- Department of Hepatology, Department of Gastroenterology and Hepatology, Chang-Gung Memorial Hospital, Linkou Medical Center, Taoyuan 33305, Taiwan (Y.L.); (L.-T.L.); (Y.-C.H.)
| | - Wei-Ting Chen
- Department of Hepatology, Department of Gastroenterology and Hepatology, Chang-Gung Memorial Hospital, Linkou Medical Center, Taoyuan 33305, Taiwan (Y.L.); (L.-T.L.); (Y.-C.H.)
- College of Medicine, Chang-Gung University, Taoyuan 33302, Taiwan
| | - Tsung-Han Wu
- College of Medicine, Chang-Gung University, Taoyuan 33302, Taiwan
- Department of General Surgery, Chang-Gung Memorial Hospital, Linkou Medical Center, Taoyuan 333, Taiwan
| | - Yu Liu
- Department of Hepatology, Department of Gastroenterology and Hepatology, Chang-Gung Memorial Hospital, Linkou Medical Center, Taoyuan 33305, Taiwan (Y.L.); (L.-T.L.); (Y.-C.H.)
| | - Li-Tong Liu
- Department of Hepatology, Department of Gastroenterology and Hepatology, Chang-Gung Memorial Hospital, Linkou Medical Center, Taoyuan 33305, Taiwan (Y.L.); (L.-T.L.); (Y.-C.H.)
| | - Wei Teng
- Department of Hepatology, Department of Gastroenterology and Hepatology, Chang-Gung Memorial Hospital, Linkou Medical Center, Taoyuan 33305, Taiwan (Y.L.); (L.-T.L.); (Y.-C.H.)
- College of Medicine, Chang-Gung University, Taoyuan 33302, Taiwan
| | - Yi-Chung Hsieh
- Department of Hepatology, Department of Gastroenterology and Hepatology, Chang-Gung Memorial Hospital, Linkou Medical Center, Taoyuan 33305, Taiwan (Y.L.); (L.-T.L.); (Y.-C.H.)
- College of Medicine, Chang-Gung University, Taoyuan 33302, Taiwan
| | - Yen-Mu Wu
- College of Medicine, Chang-Gung University, Taoyuan 33302, Taiwan
- Department of Infectious Disease, Chang-Gung Memorial Hospital, Linkou Medical Center, Taoyuan 33305, Taiwan;
| | - Chien-Hao Huang
- Department of Hepatology, Department of Gastroenterology and Hepatology, Chang-Gung Memorial Hospital, Linkou Medical Center, Taoyuan 33305, Taiwan (Y.L.); (L.-T.L.); (Y.-C.H.)
- College of Medicine, Chang-Gung University, Taoyuan 33302, Taiwan
| | - Chao-Wei Hsu
- Department of Hepatology, Department of Gastroenterology and Hepatology, Chang-Gung Memorial Hospital, Linkou Medical Center, Taoyuan 33305, Taiwan (Y.L.); (L.-T.L.); (Y.-C.H.)
- College of Medicine, Chang-Gung University, Taoyuan 33302, Taiwan
| | - Rong-Nan Chien
- Department of Hepatology, Department of Gastroenterology and Hepatology, Chang-Gung Memorial Hospital, Linkou Medical Center, Taoyuan 33305, Taiwan (Y.L.); (L.-T.L.); (Y.-C.H.)
- College of Medicine, Chang-Gung University, Taoyuan 33302, Taiwan
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Kuo YY, Chen WT, Lin GB, Lu CH, Chao CY. Study on the effect of a triple cancer treatment of propolis, thermal cycling-hyperthermia, and low-intensity ultrasound on PANC-1 cells. Aging (Albany NY) 2023; 15:7496-7512. [PMID: 37506229 PMCID: PMC10457055 DOI: 10.18632/aging.204916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Accepted: 07/06/2023] [Indexed: 07/30/2023]
Abstract
To reduce side effects and enhance treatment efficacy, study on combination therapy for pancreatic cancer, a deadly cancer, has gained much attraction in recent years. In this study, we propose a novel triple treatment combining propolis and two physical stimuli-thermal cycling-hyperthermia (TC-HT) and low-intensity ultrasound (US). The study found that, after the triple treatment, the cell viability of a human cancer cell line PANC-1 decreased to a level 80% less than the control, without affecting the normal pancreatic cells. Another result was excessive accumulation of reactive oxygen species (ROS) after the triple treatment, leading to the amplification of apoptotic pathway through the MAPK family and mitochondrial dysfunction. This study, to the best of our knowledge, is the first attempt to combine TC-HT, US, and a natural compound in cancer treatment. The combination of TC-HT and US also promotes the anticancer effect of the heat-sensitive chemotherapy drug cisplatin on PANC-1 cells. It is expected that optimized parameters for different agents and different types of cancer will expand the methodology on oncological therapy in a safe manner.
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Affiliation(s)
- Yu-Yi Kuo
- Department of Physics, Lab for Medical Physics and Biomedical Engineering, National Taiwan University, Taipei, Taiwan
- Molecular Imaging Center, National Taiwan University, Taipei, Taiwan
| | - Wei-Ting Chen
- Department of Physics, Lab for Medical Physics and Biomedical Engineering, National Taiwan University, Taipei, Taiwan
- Molecular Imaging Center, National Taiwan University, Taipei, Taiwan
| | - Guan-Bo Lin
- Department of Physics, Lab for Medical Physics and Biomedical Engineering, National Taiwan University, Taipei, Taiwan
- Molecular Imaging Center, National Taiwan University, Taipei, Taiwan
| | - Chueh-Hsuan Lu
- Department of Physics, Lab for Medical Physics and Biomedical Engineering, National Taiwan University, Taipei, Taiwan
- Molecular Imaging Center, National Taiwan University, Taipei, Taiwan
| | - Chih-Yu Chao
- Department of Physics, Lab for Medical Physics and Biomedical Engineering, National Taiwan University, Taipei, Taiwan
- Molecular Imaging Center, National Taiwan University, Taipei, Taiwan
- Graduate Institute of Applied Physics, Biophysics Division, National Taiwan University, Taipei, Taiwan
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Kuo YY, Chen WT, Lin GB, Chen YM, Liu HH, Chao CY. Thermal cycling-hyperthermia ameliorates Aβ 25-35-induced cognitive impairment in C57BL/6 mice. Neurosci Lett 2023; 810:137337. [PMID: 37315732 DOI: 10.1016/j.neulet.2023.137337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Revised: 06/06/2023] [Accepted: 06/08/2023] [Indexed: 06/16/2023]
Abstract
Despite continuation of some controversies, Alzheimer's disease (AD), the most common cause of dementia nowadays, has been widely believed to derive mainly from excessive β-amyloid (Aβ) aggregation, that would increase reactive oxygen species (ROS) and induce neuroinflammation, leading to neuron loss and cognitive impairment. Existing drugs on Aβ have been ineffective or offer only temporary relief at best, due to blood-brain barrier or severe side effects. The study employed thermal cycling-hyperthermia (TC-HT) to ease the Aβ-induced cognitive impairments and compared its effect with continuous hyperthermia (HT) in vivo. It established an AD mice model via intracerebroventricular (i.c.v.) injection of Aβ25-35, proving that TC-HT is much more effective in alleviating its performance decline in Y-maze and novel object recognition (NOR) tests, in comparison with HT. In addition, TC-HT also exhibits a better performance in decreasing the hippocampal Aβ and β-secretase (BACE1) expressions as well as the neuroinflammation markers-ionized calcium-binding adapter molecule 1 (Iba-1) and glial fibrillary acidic protein (GFAP) levels. Furthermore, the study finds that TC-HT can elevate more protein expressions of insulin degrading enzyme (IDE) and antioxidative enzyme superoxide dismutase 2 (SOD2) than HT. In sum, the study proves the potential of TC-HT in AD treatment, which can be put into application with the use of focused ultrasound (FUS).
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Affiliation(s)
- Yu-Yi Kuo
- Department of Physics, Lab for Medical Physics & Biomedical Engineering, National Taiwan University, Taipei 10617, Taiwan; Molecular Imaging Center, National Taiwan University College of Medicine, Taipei 10051, Taiwan
| | - Wei-Ting Chen
- Department of Physics, Lab for Medical Physics & Biomedical Engineering, National Taiwan University, Taipei 10617, Taiwan; Molecular Imaging Center, National Taiwan University College of Medicine, Taipei 10051, Taiwan
| | - Guan-Bo Lin
- Department of Physics, Lab for Medical Physics & Biomedical Engineering, National Taiwan University, Taipei 10617, Taiwan; Molecular Imaging Center, National Taiwan University College of Medicine, Taipei 10051, Taiwan
| | - You-Ming Chen
- Molecular Imaging Center, National Taiwan University College of Medicine, Taipei 10051, Taiwan; Graduate Institute of Applied Physics, Biophysics Division, National Taiwan University, Taipei 10617, Taiwan
| | - Hsu-Hsiang Liu
- Molecular Imaging Center, National Taiwan University College of Medicine, Taipei 10051, Taiwan; Graduate Institute of Applied Physics, Biophysics Division, National Taiwan University, Taipei 10617, Taiwan
| | - Chih-Yu Chao
- Department of Physics, Lab for Medical Physics & Biomedical Engineering, National Taiwan University, Taipei 10617, Taiwan; Molecular Imaging Center, National Taiwan University College of Medicine, Taipei 10051, Taiwan; Graduate Institute of Applied Physics, Biophysics Division, National Taiwan University, Taipei 10617, Taiwan.
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Huang SW, Cheng JS, Chen WT, Wu TS, Ku HP, Yeh CN, Chien RN, Chang ML. Hepatitis C accelerates extrahepatic cholangiocarcinoma risk: a joint study of hospital-based cases and nationwide population-based cohorts in a viral hepatitis-endemic area. Am J Cancer Res 2023; 13:3080-3090. [PMID: 37559993 PMCID: PMC10408483] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2023] [Accepted: 05/31/2023] [Indexed: 08/11/2023] Open
Abstract
Hepatitis C virus (HCV) infection causes many cancers, including intrahepatic cholangiocarcinoma. Whether it increases the risk of extrahepatic cholangiocarcinoma (ECC) is unknown. A 10-year nationwide population-based cohort study of the Taiwan National Health Insurance Research Database (TNHIRD) was conducted. ECC was defined by ICD-9-CM code 156 or ICD-O-3 code C23-24. Risk factors and HCV core protein expression were surveyed in patients with ECC from a tertiary-care center. Out of 11,892,067 patients, three propensity score-matched TNHIRD cohorts were matched at a 1:4:4 ratio: HCV-treated (8,331 patients with interferon-based therapy >6 months), HCV-untreated (n=33,324), and HCV-uninfected cohorts (n=33,324). The cumulative incidence of ECC [HCV-treated: 0.088%, 95% confidence interval (CI): 0.035-0.198%; HCV-untreated: 0.095%, 0.047-0.179%; HCV-uninfected: 0.048%, 0.017-0.119%] was lowest in the HCV-uninfected cohort (P=0.0285) but was not different between the treated and untreated cohorts (P=0.5436). HCV infection [HCV-treated cohort: hazard ratio (HR): 3.618, 95% CI HR: 1.253-10.451; HCV-untreated cohort: 2.593, 95% CI HR: 1.077-6.241; reference: HCV-uninfected cohort] and age ≥49 years (HR: 5.139, 95% CI HR: 1.613-16.369) were associated with ECC development. Among the 855 hospitalized ECC patients (males: 57%; baseline age: 63.09±11.75 years, 2008-2018), the HCV Ab-positive rate was 8.4%. The HCV Ab-positive patients were more frequently female than their counterparts (66.7% vs. 40.8%, P=0.009). No HCV core-positive cells were found in the ECC tissues. In conclusion, HCV infection and age ≥49 years are potential risk factors for ECC. The HCV-associated ECC risk might not be reversed by interferon-based anti-HCV therapy nor associated with in situ HCV core-related carcinogenesis.
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Affiliation(s)
- Shu-Wei Huang
- Division of Hepatology, Department of Gastroenterology and Hepatology, Chang Gung Memorial HospitalTaoyuan, Taiwan
- Department of Medicine, College of Medicine, Chang Gung UniversityTaoyuan, Taiwan
- Department of Gastroenterology and Hepatology, New Taipei Municipal Tu Cheng HospitalNew Taipei, Taiwan
| | - Jur-Shan Cheng
- Division of Hepatology, Department of Gastroenterology and Hepatology, Chang Gung Memorial HospitalTaoyuan, Taiwan
- Clinical Informatics and Medical Statistics Research Center, College of Medicine, Chang Gung UniversityTaoyuan, Taiwan
| | - Wei-Ting Chen
- Division of Hepatology, Department of Gastroenterology and Hepatology, Chang Gung Memorial HospitalTaoyuan, Taiwan
- Department of Medicine, College of Medicine, Chang Gung UniversityTaoyuan, Taiwan
| | - Ting-Shu Wu
- Department of Medicine, College of Medicine, Chang Gung UniversityTaoyuan, Taiwan
- Division of Infectious Diseases, Department of Internal MedicineTaoyuan, Taiwan
| | - Hsin-Ping Ku
- Clinical Informatics and Medical Statistics Research Center, College of Medicine, Chang Gung UniversityTaoyuan, Taiwan
| | - Chun-Nan Yeh
- Department of Surgery, Chang Gung Memorial Hospital, Chang Gung UniversityTaoyuan, Taiwan
| | - Rong-Nan Chien
- Division of Hepatology, Department of Gastroenterology and Hepatology, Chang Gung Memorial HospitalTaoyuan, Taiwan
- Department of Medicine, College of Medicine, Chang Gung UniversityTaoyuan, Taiwan
| | - Ming-Ling Chang
- Division of Hepatology, Department of Gastroenterology and Hepatology, Chang Gung Memorial HospitalTaoyuan, Taiwan
- Department of Medicine, College of Medicine, Chang Gung UniversityTaoyuan, Taiwan
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Chen SK, Lee W, Li YC, Hsu FT, Chen WT. Imipramine Induces Apoptosis and Inhibits the Metastatic Potential of Triple-negative Breast Cancer Cells. Anticancer Res 2023; 43:2985-2994. [PMID: 37351989 DOI: 10.21873/anticanres.16469] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Revised: 05/29/2023] [Accepted: 05/30/2023] [Indexed: 06/25/2023]
Abstract
BACKGROUND/AIM Triple-negative breast cancer (TNBC) is an aggressive and deadly subtype of breast cancer, and there is an urgent need for new therapeutic strategies. The highly metastatic and anti-apoptotic characteristics are known to be the major factors causing uncontrolled growth in TNBC. Imipramine is a tricyclic antidepressant that possesses anti-inflammatory activity and has been reported to inhibit the progression of highly metastatic non-small cell lung cancer. MATERIALS AND METHODS This study used MTT assay, apoptosis markers flow cytometry analysis, open-source data analysis, NF-B reporter gene assay, and western blotting to elucidate the effect of imipramine on MDA-MB-231 and 4T1 cells. RESULTS Imipramine induced caspase-mediated extrinsic and intrinsic apoptosis and was potentially associated with patient overall survival. Furthermore, imipramine suppressed the invasion and migration abilities and the expression of metastasis-associated proteins in TNBC cells. CONCLUSION Imipramine effectively suppressed TNBC progression by inducing apoptosis and inhibiting metastasis.
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Affiliation(s)
- Sheng-Kai Chen
- Department of Nuclear Medicine, Show Chwan Memorial Hospital, Changhua, Taiwan, R.O.C
| | - Wei Lee
- Translational Medicine Research Center, China Medical University Hospital, Taichung, Taiwan, R.O.C
- Cell Therapy Center, China Medical University Hospital, Taichung, Taiwan, R.O.C
| | - Yu-Ching Li
- Department of Family Medicine, Show Chwan Memorial Hospital, Changhua, Taiwan, R.O.C
| | - Fei-Ting Hsu
- Department of Biological Science and Technology, China Medical University, Taichung, Taiwan, R.O.C
| | - Wei-Ting Chen
- Department of Psychiatry, Zuoying Branch of Kaohsiung Armed Forces General Hospital, Kaohsiung, Taiwan, R.O.C.
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Chen WT, Hsieh MH. Environmental self-identity, self-efficacy, and the emergence of green opinion leaders: An exploratory study. Heliyon 2023; 9:e17351. [PMID: 37408929 PMCID: PMC10319182 DOI: 10.1016/j.heliyon.2023.e17351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Revised: 06/13/2023] [Accepted: 06/14/2023] [Indexed: 07/07/2023] Open
Abstract
Environmental issues have gradually become one of the most challenging global issues. In this Information Age where individualism is on the rise and self-media is prevalent, if we can use the power of individuals and make ordinary people become self-driven Green ambassadors to influence everyone around them, their power will be incomparable. This bottom-up force may even shake the entire society. However, how these "Green Opinion Leaders (GOLs)" are created is still an unresolved question. If we can understand the formation process of these GOLs, we may have the opportunity to generate more GOLs in the future. Therefore, this study applied participant observation methods to penetrate three local mountain hiking societies in Taiwan and conduct long-term tracking and unstructured in-depth interviews with five mountain hikers to understand why they eventually became Green Opinion Leaders (GOLs). The results show that "environmental self-identity" and the related "self-efficacies" of social and marketing abilities are the key elements making ordinary mountain hikers become GOLs. The four essential elements that form an environmental self-identity include (1) love of nature, (2) environmental consciousness, (3) environmental self-efficacy, and (4) nature self-identity. Finally, the research summarizes a series of efficient prescriptions for encouraging ordinary people to become Green Opinion Leaders (GOLs).
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Calafate S, Özturan G, Thrupp N, Vanderlinden J, Santa-Marinha L, Morais-Ribeiro R, Ruggiero A, Bozic I, Rusterholz T, Lorente-Echeverría B, Dias M, Chen WT, Fiers M, Lu A, Vlaeminck I, Creemers E, Craessaerts K, Vandenbempt J, van Boekholdt L, Poovathingal S, Davie K, Thal DR, Wierda K, Oliveira TG, Slutsky I, Adamantidis A, De Strooper B, de Wit J. Early alterations in the MCH system link aberrant neuronal activity and sleep disturbances in a mouse model of Alzheimer's disease. Nat Neurosci 2023:10.1038/s41593-023-01325-4. [PMID: 37188873 DOI: 10.1038/s41593-023-01325-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Accepted: 04/10/2023] [Indexed: 05/17/2023]
Abstract
Early Alzheimer's disease (AD) is associated with hippocampal hyperactivity and decreased sleep quality. Here we show that homeostatic mechanisms transiently counteract the increased excitatory drive to CA1 neurons in AppNL-G-F mice, but that this mechanism fails in older mice. Spatial transcriptomics analysis identifies Pmch as part of the adaptive response in AppNL-G-F mice. Pmch encodes melanin-concentrating hormone (MCH), which is produced in sleep-active lateral hypothalamic neurons that project to CA1 and modulate memory. We show that MCH downregulates synaptic transmission, modulates firing rate homeostasis in hippocampal neurons and reverses the increased excitatory drive to CA1 neurons in AppNL-G-F mice. AppNL-G-F mice spend less time in rapid eye movement (REM) sleep. AppNL-G-F mice and individuals with AD show progressive changes in morphology of CA1-projecting MCH axons. Our findings identify the MCH system as vulnerable in early AD and suggest that impaired MCH-system function contributes to aberrant excitatory drive and sleep defects, which can compromise hippocampus-dependent functions.
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Affiliation(s)
- Sara Calafate
- VIB Center for Brain & Disease Research, Leuven, Belgium.
- KU Leuven, Department of Neurosciences, Leuven Brain Institute, Leuven, Belgium.
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal.
- ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal.
| | - Gökhan Özturan
- VIB Center for Brain & Disease Research, Leuven, Belgium
- KU Leuven, Department of Neurosciences, Leuven Brain Institute, Leuven, Belgium
| | - Nicola Thrupp
- VIB Center for Brain & Disease Research, Leuven, Belgium
- KU Leuven, Department of Neurosciences, Leuven Brain Institute, Leuven, Belgium
| | - Jeroen Vanderlinden
- VIB Center for Brain & Disease Research, Leuven, Belgium
- KU Leuven, Department of Neurosciences, Leuven Brain Institute, Leuven, Belgium
| | - Luísa Santa-Marinha
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
- ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Rafaela Morais-Ribeiro
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
- ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Antonella Ruggiero
- Department of Physiology and Pharmacology, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Ivan Bozic
- Zentrum für Experimentelle Neurologie, Department of Neurology, Inselspital University Hospital Bern, University of Bern, Bern, Switzerland
| | - Thomas Rusterholz
- Zentrum für Experimentelle Neurologie, Department of Neurology, Inselspital University Hospital Bern, University of Bern, Bern, Switzerland
- Department of Biomedical Research, University of Bern, Bern, Switzerland
| | - Blanca Lorente-Echeverría
- VIB Center for Brain & Disease Research, Leuven, Belgium
- KU Leuven, Department of Neurosciences, Leuven Brain Institute, Leuven, Belgium
| | - Marcelo Dias
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
- ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Wei-Ting Chen
- VIB Center for Brain & Disease Research, Leuven, Belgium
- KU Leuven, Department of Neurosciences, Leuven Brain Institute, Leuven, Belgium
| | - Mark Fiers
- VIB Center for Brain & Disease Research, Leuven, Belgium
- KU Leuven, Department of Neurosciences, Leuven Brain Institute, Leuven, Belgium
| | - Ashley Lu
- VIB Center for Brain & Disease Research, Leuven, Belgium
- KU Leuven, Department of Neurosciences, Leuven Brain Institute, Leuven, Belgium
| | - Ine Vlaeminck
- VIB Center for Brain & Disease Research, Leuven, Belgium
- KU Leuven, Department of Neurosciences, Leuven Brain Institute, Leuven, Belgium
| | - Eline Creemers
- VIB Center for Brain & Disease Research, Leuven, Belgium
- KU Leuven, Department of Neurosciences, Leuven Brain Institute, Leuven, Belgium
| | - Katleen Craessaerts
- VIB Center for Brain & Disease Research, Leuven, Belgium
- KU Leuven, Department of Neurosciences, Leuven Brain Institute, Leuven, Belgium
| | - Joris Vandenbempt
- VIB Center for Brain & Disease Research, Leuven, Belgium
- KU Leuven, Department of Neurosciences, Leuven Brain Institute, Leuven, Belgium
| | - Luuk van Boekholdt
- VIB Center for Brain & Disease Research, Leuven, Belgium
- KU Leuven, Department of Neurosciences, Leuven Brain Institute, Leuven, Belgium
- KU Leuven, Department of Otorhinolaryngology, Leuven, Belgium
| | - Suresh Poovathingal
- VIB Center for Brain & Disease Research, Leuven, Belgium
- KU Leuven, Department of Neurosciences, Leuven Brain Institute, Leuven, Belgium
| | - Kristofer Davie
- VIB Center for Brain & Disease Research, Leuven, Belgium
- KU Leuven, Department of Neurosciences, Leuven Brain Institute, Leuven, Belgium
| | - Dietmar Rudolf Thal
- Department of Imaging and Pathology, Laboratory of Neuropathology, and Leuven Brain Institute, KU-Leuven, O&N IV, Leuven, Belgium
- Department of Pathology, UZ Leuven, Leuven, Belgium
| | - Keimpe Wierda
- VIB Center for Brain & Disease Research, Leuven, Belgium
- KU Leuven, Department of Neurosciences, Leuven Brain Institute, Leuven, Belgium
| | - Tiago Gil Oliveira
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
- ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Inna Slutsky
- Department of Physiology and Pharmacology, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
- Sagol School of Neuroscience, Tel Aviv University, Tel Aviv, Israel
| | - Antoine Adamantidis
- Zentrum für Experimentelle Neurologie, Department of Neurology, Inselspital University Hospital Bern, University of Bern, Bern, Switzerland
- Department of Biomedical Research, University of Bern, Bern, Switzerland
| | - Bart De Strooper
- VIB Center for Brain & Disease Research, Leuven, Belgium.
- KU Leuven, Department of Neurosciences, Leuven Brain Institute, Leuven, Belgium.
- UK Dementia Research Institute (UK DRI@UCL) at University College London, London, UK.
| | - Joris de Wit
- VIB Center for Brain & Disease Research, Leuven, Belgium.
- KU Leuven, Department of Neurosciences, Leuven Brain Institute, Leuven, Belgium.
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Karlowsky JA, Lob SH, Khan TK, Chen WT, Woo PCY, Seto WH, Ip M, Leung SWM, Wong QWL, Chau RWY, DeRyke CA, Young K, Motyl MR, Sahm DF. Carbapenem resistance among Gram-negative isolates collected from patients in ICU and non-ICU hospital wards in Hong Kong: SMART 2017-2020. J Glob Antimicrob Resist 2023; 33:260-266. [PMID: 37086892 DOI: 10.1016/j.jgar.2023.04.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Revised: 02/27/2023] [Accepted: 04/12/2023] [Indexed: 04/24/2023] Open
Abstract
OBJECTIVES To estimate carbapenem resistance in Pseudomonas aeruginosa and Enterobacterales isolated from infected patients in intensive-care unit (ICU) and non-ICU hospital wards in Hong Kong. METHODS Isolates of P. aeruginosa (ICU, n=35; non-ICU, n=264) and Enterobacterales (ICU, n=129; non-ICU, n=1390) were collected in four Hong Kong hospitals in 2017-2020. CLSI broth microdilution MICs were interpreted by CLSI 2021 M100 breakpoints. β-lactamase genes were identified in imipenem-, imipenem/relebactam-, and ceftolozane/tazobactam-non-susceptible isolates. RESULTS Ceftolozane/tazobactam demonstrated potent in vitro activity against both P. aeruginosa (ICU, 88.6%; non-ICU, 98.5%) and Enterobacterales (96.1% susceptible; 97.1%). Percent susceptible values for P. aeruginosa isolates from ICU and non-ICU patients were: meropenem (ICU, 74.3%; non-ICU, 84.1%) and imipenem (68.6%; 73.1%). Only one of 77 isolates tested for β-lactamase genes carried a carbapenemase (VIM-2). Percent susceptible values for Enterobacterales isolates from ICU and non-ICU patients were: meropenem (100%; 99.4%), ertapenem (100%; 98.0%), and imipenem (88.4%; 88.6%). 62 Enterobacterales isolates were tested for β-lactamase genes. Only three isolates carried a carbapenemase gene; two (both Escherichia coli) were metallo-β-lactamase-positive (both NDM-5) and one (Klebsiella pneumoniae) was OXA-48-like-positive. CONCLUSIONS Carbapenem-nonsusceptible isolates of P. aeruginosa were common (>15% of isolates). P. aeruginosa percent susceptible values to ceftolozane/tazobactam (97.3% susceptible overall) were ≥14% higher than carbapenems for both ICU and non-ICU isolates. Carbapenemases were rare among both P. aeruginosa (one isolate) and Enterobacterales (three isolates). Most Enterobacterales isolates tested from ICU and non-ICU patients in Hong Kong hospitals in 2017-2020 were susceptible to meropenem and ertapenem (≥98%); imipenem was less active (89% susceptible).
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Affiliation(s)
- James A Karlowsky
- IHMA, Schaumburg, IL, 60173, USA; Department of Medical Microbiology and Infectious Diseases, Max Rady College of Medicine, University of Manitoba, Winnipeg, MB, R3E 0J9, Canada
| | | | - Tsz K Khan
- Global Medical & Scientific Affairs, MSD (Asia) Ltd., Hong Kong, Hong Kong
| | | | - Patrick C Y Woo
- Department of Microbiology, The University of Hong Kong, Hong Kong
| | - Wing Hong Seto
- School of Public Health, WHO Collaborating Centre, University of Hong Kong, Hong Kong
| | - Margaret Ip
- Department of Microbiology, Faculty of Medicine, Chinese University of Hong Kong, Hong Kong
| | - Stanley W M Leung
- Clinical Laboratories and Pathology, Hong Kong Adventist Hospital, Hong Kong
| | - Queenie W-L Wong
- Global Medical & Scientific Affairs, MSD (Asia) Ltd., Hong Kong, Hong Kong
| | - Rene W Y Chau
- Global Medical & Scientific Affairs, MSD (Asia) Ltd., Hong Kong, Hong Kong
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Jung CR, Chen WT, Young LH, Hsiao TC. A hybrid model for estimating the number concentration of ultrafine particles based on machine learning algorithms in central Taiwan. Environ Int 2023; 175:107937. [PMID: 37088007 DOI: 10.1016/j.envint.2023.107937] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2023] [Revised: 04/12/2023] [Accepted: 04/13/2023] [Indexed: 05/03/2023]
Abstract
Modeling is a cost-effective measure to estimate ultrafine particle (UFP) levels. Previous UFP estimates generally relied on land-use regression with insufficient temporal resolution. We carried out in-situ measurements for UFP in central Taiwan and developed a model incorporating satellite-based measurements, meteorological variables, and land-use data to estimate daily UFP levels at a 1-km resolution. Two sampling campaigns were conducted for measuring hourly UFP concentrations at six sites between 2008-2010 and 2017-2021, respectively, using scanning mobility particle sizers. Three machine learning algorithms, namely random forest, eXtreme gradient boosting (XGBoost), and deep neural network, were used to develop UFP estimation models. The performances were evaluated with a 10-fold cross-validation, temporal, and spatial validation. A total of 1,022 effective sampling days were conducted. The XGBoost model had the best performance with a training coefficient of determination (R2) of 0.99 [normalized root mean square error (nRMSE): 6.52%] and a cross-validation R2 of 0.78 (nRMSE: 31.0%). The ten most important variables were surface pressure, distance to the nearest road, temperature, calendar year, day of the year, NO2, meridional wind, the total length of roads, PM2.5, and zonal wind. The UFP levels were elevated along the main roads across different seasons, suggesting that traffic emission is an important contributor to UFP. This hybrid model outperformed prior land use regression models and thus can provide more accurate estimates of UFP for epidemiological studies.
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Affiliation(s)
- Chau-Ren Jung
- Department of Public Health, College of Public Health, China Medical University, Taichung, Taiwan; Japan Environment and Children's Study Programme Office, Health and Environmental Risk Division, National Institute for Environmental Studies, Tsukuba, Japan.
| | - Wei-Ting Chen
- Department of Atmospheric Sciences, National Taiwan University, Taipei, Taiwan
| | - Li-Hao Young
- Department of Occupational Safety and Health, China Medical University, Taichung, Taiwan
| | - Ta-Chih Hsiao
- Graduate Institute of Environmental Engineering, National Taiwan University, Taipei, Taiwan
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Chang CC, Algaissi A, Lai CC, Chang CK, Lin JS, Wang YS, Chang BH, Chang YC, Chen WT, Fan YQ, Peng BH, Chao CY, Tzeng SR, Liang PH, Sung WC, Hu AYC, Chang SC, Chang MF. Subunit vaccines with a saponin-based adjuvant boost humoral and cellular immunity to MERS coronavirus. Vaccine 2023; 41:3337-3346. [PMID: 37085450 PMCID: PMC10083212 DOI: 10.1016/j.vaccine.2023.04.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Revised: 02/15/2023] [Accepted: 04/03/2023] [Indexed: 04/23/2023]
Abstract
Middle East respiratory syndrome coronavirus (MERS-CoV) outbreaks have constituted a public health issue with drastic mortality higher than 34%, necessitating the development of an effective vaccine. During MERS-CoV infection, the trimeric spike protein on the viral envelope is primarily responsible for attachment to host cellular receptor, dipeptidyl peptidase 4 (DPP4). With the goal of generating a protein-based prophylactic, we designed a subunit vaccine comprising the recombinant S1 protein with a trimerization motif (S1-Fd) and examined its immunogenicity and protective immune responses in combination with various adjuvants. We found that sera from immunized wild-type and human DPP4 transgenic mice contained S1-specific antibodies that can neutralize MERS-CoV infection in susceptible cells. Vaccination with S1-Fd protein in combination with a saponin-based QS-21 adjuvant provided long-term humoral as well as cellular immunity in mice. Our findings highlight the significance of the trimeric S1 protein in the development of MERS-CoV vaccines and offer a suitable adjuvant, QS-21, to induce robust and prolonged memory T cell response.
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Affiliation(s)
- Chi-Chieh Chang
- Institute of Biochemistry and Molecular Biology, College of Medicine, National Taiwan University, Taipei 10051, Taiwan
| | - Abdullah Algaissi
- Department of Microbiology and Immunology, The University of Texas Medical Branch, Galveston, TX 77555, USA; Center for Biodefense and Emerging Disease, The University of Texas Medical Branch, Galveston, TX 77555, USA
| | - Chia-Chun Lai
- National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes, Miaoli County 35053, Taiwan; College of Life Science, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Chun-Kai Chang
- School of Pharmacy, College of Medicine, National Taiwan University, Taipei 100025, Taiwan
| | - Jr-Shiuan Lin
- Graduate Institute of Immunology, College of Medicine, National Taiwan University, Taipei 10051, Taiwan
| | - Yi-Shiang Wang
- Institute of Biochemistry and Molecular Biology, College of Medicine, National Taiwan University, Taipei 10051, Taiwan
| | - Bo-Hau Chang
- Institute of Biochemistry and Molecular Biology, College of Medicine, National Taiwan University, Taipei 10051, Taiwan
| | - Yu-Chiuan Chang
- Institute of Biochemistry and Molecular Biology, College of Medicine, National Taiwan University, Taipei 10051, Taiwan
| | - Wei-Ting Chen
- Department of Physics, National Taiwan University, Taipei 10617, Taiwan
| | - Yong-Qing Fan
- Institute of Biochemistry and Molecular Biology, College of Medicine, National Taiwan University, Taipei 10051, Taiwan
| | - Bi-Hung Peng
- Department of Neurosciences, The University of Texas Medical Branch, Galveston, TX 77555, USA
| | - Chih-Yu Chao
- Department of Physics, National Taiwan University, Taipei 10617, Taiwan
| | - Shiou-Ru Tzeng
- Institute of Biochemistry and Molecular Biology, College of Medicine, National Taiwan University, Taipei 10051, Taiwan
| | - Pi-Hui Liang
- School of Pharmacy, College of Medicine, National Taiwan University, Taipei 100025, Taiwan
| | - Wang-Chou Sung
- National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes, Miaoli County 35053, Taiwan
| | - Alan Yung-Chih Hu
- National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes, Miaoli County 35053, Taiwan
| | - Shin C Chang
- Institute of Microbiology, College of Medicine, National Taiwan University, Taipei 10051, Taiwan
| | - Ming-Fu Chang
- Institute of Biochemistry and Molecular Biology, College of Medicine, National Taiwan University, Taipei 10051, Taiwan.
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Rosas LG, Chen S, Xiao L, Emmert-Aronson BO, Chen WT, Ng E, Martinez E, Baiocchi M, Thompson-Lastad A, Markle EA, Tester J. Addressing food insecurity and chronic conditions in community health centres: protocol of a quasi-experimental evaluation of Recipe4Health. BMJ Open 2023; 13:e068585. [PMID: 37024257 PMCID: PMC10083738 DOI: 10.1136/bmjopen-2022-068585] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/24/2022] [Accepted: 03/11/2023] [Indexed: 04/08/2023] Open
Abstract
INTRODUCTION Chronic conditions, such as diabetes, obesity, heart disease and depression, are highly prevalent and frequently co-occur with food insecurity in communities served by community health centres in the USA. Community health centres are increasingly implementing 'Food as Medicine' programmes to address the dual challenge of chronic conditions and food insecurity, yet they have been infrequently evaluated. METHODS AND ANALYSIS The goal of this quasi-experimental study was to evaluate the effectiveness of Recipe4Health, a 'Food as Medicine' programme. Recipe4Health includes two components: (1) a 'Food Farmacy' that includes 16 weekly deliveries of produce and (2) a 'Behavioural Pharmacy' which is a group medical visit. We will use mixed models to compare pre/post changes among participants who receive the Food Farmacy alone (n=250) and those who receive the Food Farmacy and Behavioural Pharmacy (n=140). The primary outcome, fruit and vegetable consumption, and secondary outcomes (eg, food security status, physical activity, depressive symptoms) will be collected via survey. We will also use electronic health record (EHR) data on laboratory values, prescriptions and healthcare usage. Propensity score matching will be used to compare Recipe4Health participants to a control group of patients in clinics where Recipe4Health has not been implemented for EHR-derived outcomes. Data from surveys, EHR, group visit attendance and produce delivery is linked with a common identifier (medical record number) and then deidentified for analysis with use of an assigned unique study ID. This study will provide important preliminary evidence on the effectiveness of primary care-based strategies to address food insecurity and chronic conditions. ETHICS AND DISSEMINATION This study was approved by the Stanford University Institutional Review Board (reference protocol ID 57239). Appropriate study result dissemination will be determined in partnership with the Community Advisory Board.
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Affiliation(s)
- Lisa G Rosas
- Department of Epidemiology and Population Health, Stanford University School of Medicine, Stanford, California, USA
- Department of Medicine, Division of Primary Care and Population Health, Stanford School of Medicine, Palo Alto, CA, USA
- Community Engagement, Stanford School of Medicine, Palo Alto, CA, USA
| | - Steven Chen
- Recipe4Health, Alameda County Health Care Services Agency, San Leandro, California, USA
| | - Lan Xiao
- Department of Epidemiology and Population Health, Stanford University School of Medicine, Stanford, California, USA
| | | | - Wei-Ting Chen
- Department of Epidemiology and Population Health, Stanford University School of Medicine, Stanford, California, USA
- Community Engagement, Stanford School of Medicine, Palo Alto, CA, USA
| | - Elliot Ng
- Community Health Center Network, San Leandro, California, USA
| | - Erica Martinez
- Department of Epidemiology and Population Health, Stanford University School of Medicine, Stanford, California, USA
| | - Mike Baiocchi
- Department of Epidemiology and Population Health, Stanford University School of Medicine, Stanford, California, USA
| | - Ariana Thompson-Lastad
- Osher Center for Integrative Medicine and Department of Family and Community Medicine, UC San Francisco School of Medicine, San Francisco, California, USA
| | | | - June Tester
- Department of Pediatrics, University of California San Francisco, San Francisco, California, USA
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AuYoung M, Rodriguez Espinosa P, Chen WT, Juturu P, Young MEDT, Casillas A, Adkins-Jackson P, Hopfer S, Kissam E, Alo AK, Vargas RA, Brown AF. Addressing racial/ethnic inequities in vaccine hesitancy and uptake: lessons learned from the California alliance against COVID-19. J Behav Med 2023; 46:153-166. [PMID: 35066696 PMCID: PMC8783654 DOI: 10.1007/s10865-022-00284-8] [Citation(s) in RCA: 31] [Impact Index Per Article: 31.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Accepted: 01/03/2022] [Indexed: 12/31/2022]
Abstract
Lack of trust in biomedical research, government, and health care systems, especially among racial/ethnic minorities and under-resourced communities, is a longstanding issue rooted in social injustice. The COVID-19 pandemic has further highlighted existing health and socioeconomic inequities and increased the urgency for solutions to provide access to timely, culturally, and linguistically appropriate evidence-based information about COVID-19; and ultimately to promote vaccine uptake. California's statewide alliance STOP COVID-19 CA (comprising eleven sites), leverages long standing community partnerships to better understand concerns, misinformation, and address racial/ethnic inequities in vaccine hesitancy and uptake. Using data from the California CEAL Communication Working Group, we demonstrate the wide range of strategies, communication methods, languages, and trusted messengers that have been effective in reaching diverse communities across the state. We also showcase challenges and lessons learned, such as the importance of including trusted community partners to share information or provide vaccines. These approaches, rooted in community engagement, are crucial for addressing inequities and responding to future public health emergencies.
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Affiliation(s)
| | - Patricia Rodriguez Espinosa
- Office of Community Engagement, Stanford University School of Medicine, Palo Alto, CA, USA
- Department of Epidemiology and Population Health, Stanford University School of Medicine, Palo Alto, CA, USA
| | - Wei-Ting Chen
- Office of Community Engagement, Stanford University School of Medicine, Palo Alto, CA, USA
| | - Preeti Juturu
- Center for Health Disparities Research, University of California at Riverside, Riverside, CA, USA
| | | | - Alejandra Casillas
- Division of General Internal Medicine and Health Services Research, Department of Medicine, UCLA David Geffen School of Medicine, Los Angeles, CA, USA
| | - Paris Adkins-Jackson
- Division of Neurology, Massachusetts General Hospital, Boston, MA, USA
- Harvard Medical School, Boston, MA, USA
| | - Suellen Hopfer
- Department of Health, Program in Public Health, University of California at Irvine, Society, & Behavior, Irvine, CA, USA
| | - Ed Kissam
- Center for Reducing Health Disparities, University of California, Davis, Davis, CA, USA
- Werner Kohnstamm Family Giving Fund, Sacramento, CA, USA
| | | | - Roberto A Vargas
- Center for Community Engagement, University of California at San Francisco, San Francisco, CA, USA
| | - Arleen F Brown
- Division of General Internal Medicine and Health Services Research, Department of Medicine, UCLA David Geffen School of Medicine, Los Angeles, CA, USA
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Chen WT, Tsai YH, Tan P, Hsu FT, Wang HMD, Lin WC, Lin FH, Wu CT. Fluoxetine Inhibits STAT3-mediated Survival and Invasion of Osteosarcoma Cells. Anticancer Res 2023; 43:1193-1199. [PMID: 36854535 DOI: 10.21873/anticanres.16265] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2022] [Revised: 12/14/2022] [Accepted: 12/20/2022] [Indexed: 03/02/2023]
Abstract
BACKGROUND/AIM Osteosarcoma (OS) is a common primary malignancy of bone in adolescents. Its highly metastatic characteristics can lead to treatment failure and poor prognosis. Although standard treatments, including surgery, radiotherapy, and chemotherapy, have progressed in the past decade, treatment options to overcome metastatic progression remain sparse. Fluoxetine, an anti-depressant, has been widely used in patients with cancer for their mental issues and was reported to possess antitumor potential. However, the effect of fluoxetine on OS remains unclear. MATERIALS AND METHODS In this study, we used cell viability, invasion/migration transwell, wound-healing and aortic ring assays to identify the effects of fluoxetine on metastasis and progression in OS. RESULTS Fluoxetine induced cytotoxicity in OS cells by activating both extrinsic/intrinsic apoptosis signaling pathways. Proliferation and anti-apoptosis-related factors such as cyclin D1 and X-linked inhibitor of apoptosis were suppressed by fluoxetine. Additionally, fluoxetine suppressed the invasive/migratory abilities of OS and inhibited the development of angiogenesis by reducing the phosphorylation of signal transducer and activator of transcription 3 (STAT3). Metastasis-associated factors, vascular endothelial growth factors, matrix metallopeptidase 2 and -9, were all reduced in OS cells by fluoxetine treatment. CONCLUSION Fluoxetine not only induces cytotoxicity and apoptosis of OS cells, but also suppresses metastasis and angiogenesis by targeting STAT3.
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Affiliation(s)
- Wei-Ting Chen
- Department of Psychosomatics, Zuoying Branch of Kaohsiung Armed Forces General Hospital, Kaohsiung, Taiwan, R.O.C
| | - Yuan-Hsin Tsai
- Ph.D. Program in Tissue Engineering and Regenerative Medicine, National Chung Hsing University, Taichung, Taiwan, R.O.C
- Department of Orthopedic Surgery, Show-Chwan Memorial Hospital, Changhua, Taiwan, R.O.C
| | - Peggy Tan
- Department of Biomedical Imaging and Radiological Science, China Medical University, Taichung, Taiwan, R.O.C
| | - Fei-Ting Hsu
- Department of Biological Science and Technology, China Medical University, Taichung, Taiwan, R.O.C
| | - Hui-Min David Wang
- Ph.D. Program in Tissue Engineering and Regenerative Medicine, National Chung Hsing University, Taichung, Taiwan, R.O.C
- Graduate Institute of Biomedical Engineering, National Chung Hsing University, Taichung, Taiwan, R.O.C
| | - Wei-Chin Lin
- Department of Orthopedic Surgery, Show-Chwan Memorial Hospital, Changhua, Taiwan, R.O.C.;
| | - Feng-Huei Lin
- Institute of Biomedical Engineering, College of Medicine and College of Engineering, National Taiwan University, New Taipei, Taiwan, R.O.C.;
- Division of Biomedical Engineering and Nanomedicine Research, National Health Research Institutes, Miaoli, Taiwan, R.O.C
| | - Ching-Te Wu
- Department of Radiation Oncology, Show Chwan Memorial Hospital, Changhua, Taiwan, R.O.C.
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Chen WT, Yen TY, Hung YH, Huang YH, Chiu SJ, Lo KY. Second harmonic generation and simplified bond hyperpolarizability model analyses on the intermixing of Si/SiGe stacked multilayers for gate-all-around structure. Nanotechnology 2023; 34:145702. [PMID: 36626806 DOI: 10.1088/1361-6528/acb1b5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Accepted: 01/10/2023] [Indexed: 06/17/2023]
Abstract
Si/SiGe stacked multilayers are key elements in fabrication of gate-all-around (GAA) structures and improvement of electrical properties, with the evolution of the Si/SiGe interfaces playing a crucial role. In this work, a model is developed based on the simplified bond hyperpolarizability model (SBHM) to analysis the anisotropic reflective second harmonic generation (Ani-RSHG) on a three-period stacked Si/Si1-xGexmultilayer, which builds on Si(100) diamond structures. TheC4vsymmetry of the Si(100) structure enables the second harmonic generation (SHG) contribution from the bonds to be simplified and the effective hyperpolarizabilities of the interfacial and bulk sources to be obtained. The effective interface dipolar and bulk quadrupolar SHG hyperpolarizabilities in the Si1-xGexsample with various Ge concentration profiles are modeled by interpreting the concentration of a component element as the probability of the element occupying an atomic site. On the basis of the developed model, the Ani-RSHG spectra of the as-grown samples with various Ge ratios for each layer and the samples annealed at 850 °C and 950 °C are analyzed to inspect the change in Ge distribution and its gradient in depth. The ani-RSHG analysis on as-grown samples showed difference in Ge distribution in samples with the multi Si/SiGe structure, which is not well observed in synchrotron x-ray diffraction (XRD) spectra. For the annealed samples, the response to changes in Ge concentration and its gradient in depth reveal the Si/Si1-xGexinterface intermixing. Results of high-angle annular dark-field scanning transmission electron microscopy and energy dispersive x-ray spectroscopy agree well with the Ani-RSHG with SBHM findings. Compared with the Raman and synchrotron XRD spectra, the Ani-RSHG with SBHM simulation result demonstrates much better response to changes in compositions of the Si/Si1-xGexstacked multilayered structures, verifying the potential for characterizing the concentration distribution in stacked multilayered thin films for GAA structures.
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Affiliation(s)
- Wei-Ting Chen
- Department of Physics, National Cheng Kung University, Tainan 70101, Taiwan
| | - Ting-Yu Yen
- Department of Physics, National Cheng Kung University, Tainan 70101, Taiwan
| | - Yang-Hao Hung
- Department of Physics, National Cheng Kung University, Tainan 70101, Taiwan
| | - Yu-Hsiang Huang
- Department of Physics, National Cheng Kung University, Tainan 70101, Taiwan
| | - Shang-Jui Chiu
- National Synchrotron Radiation Research Center, Hsinchu 300, Taiwan
| | - Kuang-Yao Lo
- Department of Physics, National Cheng Kung University, Tainan 70101, Taiwan
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Huang SS, Tien YT, Lee HY, Ong HN, Huang CH, Chen WT, Chen WJ, Chang WT, Tsai MS. Combination of Cerebral Computed Tomography and Simplified Cardiac Arrest Hospital Prognosis (sCAHP) Score for Predicting Neurological Recovery in Cardiac Arrest Survivors. Rev Cardiovasc Med 2023. [DOI: 10.31083/j.rcm2401025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
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Chen WT, Chen KY, Chen IH, Fang HY, Ding JJ, Kuo SY. Missing Recovery: Single Image Reflection Removal based on Auxiliary Prior Learning. IEEE Trans Image Process 2022; PP:643-656. [PMID: 37015621 DOI: 10.1109/tip.2022.3230544] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
Photographs taken through a glass window are susceptible to disturbances due to reflection. Therefore, single image reflection removal is crucial to image quality enhancement. In this paper, a novel learning architecture that can address this ill-posed problem is proposed. First, a novel reflection removal pipeline was designed to reconstruct the missing information caused by the camera imaging process using the proposed missing recovery network. Second, to address the issues in existing reflection removal strategies, we revisit several auxiliary priors and integrate them by defining an energy function. To solve the energy function, a convolutional neural network-based optimization scheme was proposed. Finally, we investigated the dark channel responses of reflection and clean images and found an interesting way to distinguish between these two types of images. We prove this property mathematically and propose a novel loss function called dark channel loss to improve performance. Experiments show that the proposed method outperforms state-of-the-art reflection removal methods both quantitatively and qualitatively.
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Hsieh TC, Chen WT. 2052. Temporal and Geographical Prevalence of Carbapenem-Resistant Pseudomonas aeruginosa and the In Vitro Activity of Ceftolozane/Tazobactam and Comparators in Taiwan – SMART 2012-2020. Open Forum Infect Dis 2022. [DOI: 10.1093/ofid/ofac492.1674] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Abstract
Background
Carbapenem-resistant Pseudomonas aeruginosa (CRPA) is listed as a critical pathogen by World Health Organization (WHO). Using clinical isolates collected in Taiwan as part of the global SMART surveillance program, we evaluated the trend of CRPA prevalence in recent nine years (2012-2020) as well as in vitro activity of ceftolozane/tazobactam (C/T) and comparators against CRPA collected from ICU vs non-ICU wards from 2016 to 2020.
Methods
Between 2012-2020, Pseudomonas aeruginosa (PA) isolates were collected from nine sites in Taiwan (2 in Northern, 3 in Central and 4 in Southern Taiwan). MICs were determined and interpreted based on CLSI broth microdilution guidelines and 2021 CLSI breakpoints. PCR screening and β-lactamase gene sequencing were performed for isolates non-susceptible to imipenem or imipenem/relebactam or C/T.
Results
During the study period, a total of 2639 PA isolates were collected. Among these, 448 isolates were resistant to either imipenem or meropenem (17.0%). Yearly prevalence rate of CRPA increased from 12.3% in 2012 to 22.8% in 2020: 12.3% in 2012 (14/114), 11.5% in 2013 (16/139), 11.5% in 2014 (13/113), 12.2% in 2015 (41/336), 15.5% in 2016 (57/367), 15.9% in 2017 (68/428), 20.4% in 2018 (73/357), 19.4% in 2019 (75/386) and 22.8% (91/399) in 2020. Hospitals in Northern Taiwan had higher CRPA prevalence rate (22.8%, 131/574) compared to those in Central (15.7%, 126/802) and Southern Taiwan (15.1%, 191/1263). Percentage susceptibility of CRPA isolates to C/T from 2016 to 2020 showed 89.47% (51/57) in 2016, 79.41% (54/68) in 2017, 93.2% (68/73) in 2018, 90.7% (68/75) in 2019 and 98.9% (90/91) in 2020. For ICU vs. Non-ICU CRPA isolates, the susceptibility to C/T were 88.3% vs.93.8%, 77.8% vs. 82.5%, 92.3 % vs. 92.9%, 87.1% vs.93.2% and 100% vs. 98.26%, in 2016,2017, 2018, 2019 and 2020, respectively.
Conclusion
During the period of 2012-2020, the yearly prevalence of CRPA in Taiwan hospitals increased from 12.3% to 22.8%. The high prevalence and increasing trend of CRPA warrant continuous monitoring of evolving antibiotic resistance in Taiwan.
Disclosures
Tai-Chin Hsieh, MBBS, MSD Taiwan: Advisor/Consultant|MSD Taiwan: Employee of MSD Taiwan|MSD Taiwan: Stocks/Bonds.
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Affiliation(s)
- Tai-Chin Hsieh
- Shin-Kong Wu Ho Su memorial hospital , New Taipei, New Taipei , Taiwan
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Lob S, Estabrook M, Chen WT, Siddiqui F, Young K, Motyl M, Sahm DF. 1718. In Vitro Activity of Imipenem/Relebactam against Class C β-lactamase-Positive Enterobacterales in the Asia/Pacific Region: SMART 2018-2020. Open Forum Infect Dis 2022. [PMCID: PMC9752709 DOI: 10.1093/ofid/ofac492.1348] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Background Imipenem/relebactam (IMR) is a combination of imipenem/cilastatin with the β-lactamase inhibitor relebactam, an inhibitor of class A and C β-lactamases. We evaluated the activity of IMR and comparators against AmpC- and extended-spectrum β-lactamase (ESBL)-producing E. coli and K. pneumoniae as well as against isolates of intrinsic AmpC-producing Enterobacterales species that were collected in 9 countries in Asia/Pacific as part of the global SMART surveillance program. Methods In 2018-2020, 48 clinical laboratories in Australia, Hong Kong, Malaysia, New Zealand, Philippines, South Korea, Taiwan, Thailand, and Vietnam each collected up to 250 consecutive, aerobic or facultative, gram-negative pathogens per year from patients with bloodstream, intraabdominal, lower respiratory tract, and urinary tract infections. MICs were determined using CLSI broth microdilution and interpreted with 2022 CLSI breakpoints. Isolates that were ertapenem- (2018 only), imipenem-, IMR-, or ceftolozane/tazobactam-nonsusceptible were screened by PCR and Sanger sequencing for β-lactamases. Results As shown in the table, IMR maintained activity against ≥96% K. pneumoniae and E. coli that carried ampC with or without ESBL as well as against those intrinsic ampC carriers (except S. marcescens, 92.7%) among which no additional β-lactamases other than ESBLs were identified. The addition of relebactam increased the susceptibility to imipenem alone by 8-55 percentage points for K. pneumoniae and E. coli carrying AmpC with or without ESBL. Among intrinsic ampC carriers, the largest increase was seen among K. aerogenes (28 percentage points). Relebactam restored susceptibility to 97.3% of imipenem-nonsusceptible (NS) ampC-positive K. pneumoniae (n=73) and to 95.7%, 98.6%, and 37.7% of imipenem-NS isolates of E. cloacae complex (n=92), K. aerogenes (n=147), and S. marcescens (n=61) that carried no acquired β-lactamases. Among the imipenem-NS S. marcescens isolates, 50.8% tested with an IMR MIC of 2 µg/mL, which would be susceptible according to EUCAST guidelines.
![]() Conclusion IMR showed strong activity against clinical Enterobacterales isolates that carried either acquired or intrinsic ampC with or without ESBL collected in Asia/Pacific. Disclosures Fakhar Siddiqui, MD, MBA, Merck & Co., Inc.: employee|Merck & Co., Inc.: Stocks/Bonds Katherine Young, M.S., Merck & Co., Inc.: Stocks/Bonds.
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Chen WT, Yen TY, Hung YH, Lo KY. Structure of an In Situ Phosphorus-Doped Silicon Ultrathin Film Analyzed Using Second Harmonic Generation and Simplified Bond-Hyperpolarizability Model. Nanomaterials (Basel) 2022; 12:4307. [PMID: 36500930 PMCID: PMC9736357 DOI: 10.3390/nano12234307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Revised: 11/29/2022] [Accepted: 11/30/2022] [Indexed: 06/17/2023]
Abstract
In fabricating advanced silicon (Si)-based metal-oxide semiconductors, the ability to inspect dopant distribution in Si ultrathin films (tens of nm) is crucial for monitoring the amount of dopant diffusion. Here, we perform an anisotropic reflective second harmonic generation (SHG) measurement to demonstrate the sensitivity of SHG to phosphorus (P) concentration within the range of 2.5×1017 to 1.6×1020 atoms/cm3. In addition, we propose an analysis method based on a simplified bond-hyperpolarizability model to interpret the results. The bond vector model that corresponds to the P vacancy clusters is built to calculate the SHG contribution from substitutionally incorporated P atoms. The effect of incorporating P into the Si lattice is reflected in the effective hyperpolarizability, lattice tilt, and deformation of this model. The fitting results of the intuitively defined coefficients exhibit a high correlation to the P concentration, indicating the potential of this model to resolve the properties in complex material compositions. Finally, a comparison with Fourier analysis is made to evaluate the advantages and disadvantages of this model. Combined anisotropic reflective SHG (Ani-RSHG) and the simplified bond-hyperpolarizability model (SBHM) can analyze the crystal structure of doped ultrathin films and provide a non-destructive nanophotonic way for in-line inspection.
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Ling DA, Huang CH, Chen WJ, Chuang PY, Chang WT, Sung CW, Chen WT, Ong HN, Tsai MS. Impact of protocolized postarrest care with targeted temperature management on the outcomes of cardiac arrest survivors without temperature management. Ann Med 2022; 54:63-70. [PMID: 34935569 PMCID: PMC8725984 DOI: 10.1080/07853890.2021.2016941] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
INTRODUCTION Protocolized postarrest care that includes targeted temperature management (TTM) improves survival and neurological outcomes in cardiac arrest survivors. Whether the accumulated experience regarding the use of the protocolized approach also benefits patients who did not undergo TTM has yet to be investigated. METHODS Adults (≥18 years old) with nontraumatic cardiac arrest and who survived to intensive care unit (ICU) admission were retrospectively recruited from a single tertiary medical centre from 2006 to 2009 and 2011 to 2017. Patients were excluded if they had traumatic injuries, were pregnant, did not survive to ICU admission, regained clear consciousness within 3 h after the return of spontaneous circulation, or underwent TTM. The sum of TTM cases since 2006 and before the cardiac arrest of each enrolled patient was used as a substitute index for the amount of experience accumulated from the use of protocolized TTM care. RESULTS In total, 802 non-TTM patients were enrolled in the final analysis. The rate of survival to hospital discharge increased from 25.9% in 2006 to 33.3% in 2017. Regarding neurological recovery at hospital discharge, the incidence of favourable neurological function (cerebral performance category: 1 or 2) increased from 10.3% in 2006 to 23.5% in 2017. A multiple logistic regression indicated a significant association between the cumulative TTM case numbers and neurological outcomes in patients who did not receive TTM. CONCLUSIONS The improvement of neurological outcomes in adult nontraumatic cardiac arrest survivors who did not receive TTM was associated with the cumulative number of cases receiving protocolized TTM care. In the era of TTM, the use of only historical control data might lead to bias, which is caused by overlooking the influence of a more refined protocolized postarrest care that includes TTM.KEY MESSAGEThe cumulative number of cases receiving protocolized TTM care, which we used as a substitute index for the amount of experience accumulated from the use of protocolized postarrest care that includes TTM, was associated with the improvement of neurological outcomes in adult nontraumatic cardiac arrest survivors who did not receive TTM.
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Affiliation(s)
- Dean-An Ling
- Department of Emergency Medicine, National Taiwan University Medical College and Hospital, Taipei, Taiwan
| | - Chien-Hua Huang
- Department of Emergency Medicine, National Taiwan University Medical College and Hospital, Taipei, Taiwan
| | - Wen-Jone Chen
- Department of Emergency Medicine, National Taiwan University Medical College and Hospital, Taipei, Taiwan
| | - Po-Ya Chuang
- School of Health Care Administration, Taipei Medical University, Taipei, Taiwan
| | - Wei-Tien Chang
- Department of Emergency Medicine, National Taiwan University Medical College and Hospital, Taipei, Taiwan
| | - Chih-Wei Sung
- Department of Emergency Medicine, National Taiwan University Hospital Hsin-Chu Branch, Hsinchu, Taiwan
| | - Wei-Ting Chen
- Department of Emergency Medicine, National Taiwan University Medical College and Hospital, Taipei, Taiwan
| | - Hooi-Nee Ong
- Department of Emergency Medicine, National Taiwan University Medical College and Hospital, Taipei, Taiwan
| | - Min-Shan Tsai
- Department of Emergency Medicine, National Taiwan University Medical College and Hospital, Taipei, Taiwan
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Shortridge D, Streit J, Pfaller M, Tulloch M, Chen WT, Castanheira M. Activity of Ceftolozane-Tazobactam Against Gram-Negative Isolates from Australia and New Zealand as part of the PACTS Surveillance 2016-2018. J Glob Antimicrob Resist 2022; 31:98-103. [PMID: 35988706 DOI: 10.1016/j.jgar.2022.08.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Revised: 06/09/2022] [Accepted: 08/12/2022] [Indexed: 12/30/2022] Open
Abstract
OBJECTIVES Ceftolozane-tazobactam (C-T) is an anti-pseudomonal cephalosporin combined with a well-described β-lactamase inhibitor. Ceftolozane-tazobactam has enhanced activity against Pseudomonas aeruginosa, and activity against Enterobacterales isolates that produce extended-spectrum β-lactamases (ESBLs) or AmpC cephalosporinases. In this study, we analysed the susceptibility of Gram-negative isolates to C-T and comparators collected in Australia and New Zealand from 2016 to 2018 as part of the Program to Assess Ceftolozane-Tazobactam Susceptibility (PACTS) surveillance. METHODS A total of 1693 nonduplicate Enterobacterales and 435 P. aeruginosa isolates were collected prospectively from hospitalized patients in six medical centres in Australia and two in New Zealand. Susceptibilities (S) to C-T and comparators were determined using broth microdilution. EUCAST breakpoints were used. Isolates with multi-drug resistant (MDR), extensively drug resistant (XDR), extended-spectrum β-lactamase non-carbapenem resistant (ESBL, non-CRE) phenotype, and CRE were analysed. RESULTS For P. aeruginosa, 97.5% were S to C-T while 89.9% were S to meropenem. According to EUCAST criteria, 86.4% were susceptible-increased exposure to piperacillin-tazobactam. MDR and XDR P. aeruginosa isolates had 76.7% and 65.4% S to C-T, respectively; 34.9% and 19.2% S to meropenem, respectively; and 23.3% and 15.4% were susceptible-increased exposure to piperacillin-tazobactam, respectively. Meropenem (99.8% S), amikacin (99.1% S), and C-T (96.5% S) were the most active against Enterobacterales. Susceptibilities to C-T were 94.3% for ESBL, non-CRE phenotype, and 78.4% for MDR isolates. Only three CRE and five XDR isolates were identified. CONCLUSIONS These in vitro data indicate that C-T is a potent antimicrobial with activity against MDR and XDR P. aeruginosa, as well as ESBL, non-CRE phenotype isolates and MDR Enterobacterales.
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Affiliation(s)
| | | | - Michael Pfaller
- JMI Laboratories, North Liberty, Iowa; University of Iowa College of Medicine, Iowa City, Iowa
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Huang ST, Lee TJ, Chen KH, Sun HY, Chen WT, Hsieh SC, Cheng A, Chen YC. Fatal myositis, rhabdomyolysis and compartment syndrome after ChAdOx1 nCoV-19 vaccination. J Microbiol Immunol Infect 2022; 55:1131-1133. [PMID: 35504826 PMCID: PMC9056017 DOI: 10.1016/j.jmii.2022.04.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Revised: 03/28/2022] [Accepted: 04/01/2022] [Indexed: 12/27/2022]
Affiliation(s)
| | - Tai-Ju Lee
- Division of Allergy, Immunology and Rheumatology, Department of Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - Kai-Hsiang Chen
- Division of Infectious Diseases, Department of Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
| | - Hsin-Yun Sun
- Division of Infectious Diseases, Department of Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
| | - Wei-Ting Chen
- Department of Emergency Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
| | - Song-Chou Hsieh
- Division of Allergy, Immunology and Rheumatology, Department of Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - Aristine Cheng
- Division of Infectious Diseases, Department of Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan.
| | - Yee-Chun Chen
- Division of Infectious Diseases, Department of Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
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Pfaller M, Shortridge D, Chen WT, Sader H, Castanheira M. Ceftolozane/Tazobactam Activity Against Drug-Resistant Pseudomonas aeruginosa and Enterobacterales Causing Healthcare-Associated Infections in Eight Asian Countries: Report from an Antimicrobial Surveillance Program (2016-2018). Infect Drug Resist 2022; 15:6739-6753. [PMID: 36444213 PMCID: PMC9700433 DOI: 10.2147/idr.s387097] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Accepted: 11/14/2022] [Indexed: 12/01/2023] Open
Abstract
PURPOSE To evaluate the in vitro activity of ceftolozane/tazobactam and comparator agents tested against Pseudomonas aeruginosa and Enterobacterales isolates from hospitalised patients in Asia. Ceftolozane/tazobactam is an antipseudomonal cephalosporin combined with a well-established β-lactamase inhibitor. METHODS A total of 2038 Gram-negative organisms (376 P. aeruginosa and 1662 Enterobacterales) were collected consecutively using a prevalence-based approach from 11 medical centres. Organisms were susceptibility tested by broth microdilution according to CLSI guidelines. CLSI and EUCAST breakpoint criteria were used. RESULTS Ceftolozane/tazobactam was the most potent (MIC50/90, 0.5/4 mg/L) β-lactam agent tested against P. aeruginosa isolates, inhibiting 91.0% of the isolates at an MIC of ≤4 mg/L. P. aeruginosa exhibited high rates of susceptibility to amikacin (92.0/92.0% [CLSI/EUCAST]) and colistin by EUCAST criteria only (99.2% intermediate [CLSI]/99.2% susceptible [EUCAST]). Ceftolozane/tazobactam (MIC50/90, 0.25/16 mg/L; 86.8/86.8% susceptible [CLSI/EUCAST]) and meropenem (MIC50/90, 0.03/0.12 mg/L; 93.0/93.3% susceptible [CLSI/EUCAST]) were the most active compounds tested against Enterobacterales. Isolates displayed susceptibility rates to other β-lactam agents, ranging from 81.5/77.7% for piperacillin/tazobactam, 66.0/64.5% for cefepime, and 65.3/60.9% for ceftazidime using CLSI/EUCAST breakpoints. Among the Enterobacterales isolates, 6.8% were carbapenem-resistant Enterobacterales (CRE) and 29.6% exhibited an extended-spectrum β-lactamase (ESBL) non-CRE phenotype. Ceftolozane/tazobactam showed good activity against ESBL non-CRE phenotype strains of Enterobacterales (MIC50/90, 0.5/8 mg/L; 84.8/84.8% susceptible), but not against isolates with a CRE phenotype (MIC50/90, >32/>32 mg/L). CONCLUSION Ceftolozane/tazobactam was the most active β-lactam agent tested against P. aeruginosa and demonstrated higher in vitro activity than the available cephalosporins when tested against Enterobacterales from Asian countries.
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Affiliation(s)
- Michael Pfaller
- JMI Laboratories, North Liberty, IA, USA
- University of Iowa College of Medicine, Iowa City, IA, USA
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Chen HW, Kuo YL, Chen CH, Chiou CS, Chen WT, Lai YH. Biocompatibile nanofiber based membranes for high-efficiency filtration of nano-aerosols with low air resistance. Process Saf Environ Prot 2022; 167:695-707. [PMID: 36185493 PMCID: PMC9510075 DOI: 10.1016/j.psep.2022.09.052] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Revised: 09/15/2022] [Accepted: 09/22/2022] [Indexed: 06/16/2023]
Abstract
Particulate matter (PMs) from combustion emissions (traffic, power plant, and industries) and the novel coronavirus (COVID-19) pandemic have recently enhanced the development of personal protective equipment against airborne pathogens to protect humans' respiratory system. However, most commercial face masks still cannot simultaneously achieve breathability and high filtration of PMs, bacteria, and viruses. This study used the electrospinning method with polyimide (PI) and polyethersulfone (PES) solutions to form a nanofiber membrane with low-pressure loss and high biocompatibility for high-efficiency bacteria, viruses, and nano-aerosol removal. Conclusively, the optimized nano-sized PI/PES membrane (0.1625 m2/g basis weight) exhibited conspicuous performance for the highest filtration efficiency towards PM from 50 to 500 nm (99.74 %), good filter quality of nano-aerosol (3.27 Pa-1), exceptional interception ratio against 100-nm airborne COVID-19 (over 99 %), and non-toxic effect on the human body (107 % cell viability). The PI/PES nanofiber membrane required potential advantage to form a medical face mask because of its averaged 97 % BEF on Staphylococcus aureus filiation and ultra-low pressure loss of 0.98 Pa by referring ASTM F2101-01. The non-toxic PI/PES filters provide a new perspective on designing excellent performance for nano-aerosols from air pollution and airborne COVID-19 with easy and comfortable breathing under ultra-low air flow resistance.
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Affiliation(s)
- Hua-Wei Chen
- Department of Chemical and Materials Engineering, National Ilan University, Yilan 260, Taiwan, ROC
| | - Yu-Lin Kuo
- Department of Mechanical Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan, ROC
| | - Chien-Hua Chen
- Department of Chemical and Materials Engineering, National Ilan University, Yilan 260, Taiwan, ROC
| | - Chyow-San Chiou
- Department of Environmental Engineering, National Ilan University, Yilan 260, Taiwan, ROC
| | - Wei-Ting Chen
- Department of Cosmetic Application & Management, St. Mary's Junior College of Medicine, Nursing and Management, Yilan 266, Taiwan, ROC
| | - Yi-Hung Lai
- Department of Chemical Engineering, National Taiwan University, Taipei 10617, Taiwan, ROC
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Chang YC, Chen WT, Su SH, Jung CR, Hwang BF. PM 2.5 exposure and incident attention-deficit/hyperactivity disorder during the prenatal and postnatal periods: A birth cohort study. Environ Res 2022; 214:113769. [PMID: 35777438 DOI: 10.1016/j.envres.2022.113769] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Revised: 06/21/2022] [Accepted: 06/24/2022] [Indexed: 05/14/2023]
Abstract
Only a few studies have assessed the effects of fine particulate matter (PM2.5) exposure during the prenatal and postnatal periods on the development of attention-deficit/hyperactivity disorder (ADHD). We investigated the association of exposure to PM2.5 during pregnancy and early life with ADHD. This birth cohort consisted of 425,736 singleton live-term births between 2004 and 2015 in Taiwan. Daily PM2.5 concentrations were derived from a 1-km satellite-based estimation model. A time-dependent Cox model was used to assess the effects of PM2.5 on ADHD during the first, second, and third trimesters and from age 1-5 years after birth. The distributed lag nonlinear model was utilized to explore the dose-response relationship. Total 9,294 children were diagnosed with ADHD during the study period. The hazard ratio (HR) of ADHD was significantly associated with a 10 μg/m3 increase in PM2.5 during the first trimester (HR = 1.26; 95% confidence interval [CI]: 1.13-1.40) and increased at PM2.5 over 16 μg/m3. For postnatal periods, the HR of ADHD was significantly associated with increased PM2.5 at the first to third year of life (HR ranged between 1.40 and 1.87). According to the dose-response relationship of exposure to PM2.5 at the third year of life, the HR of ADHD was significantly associated with PM2.5 above 16 μg/m3 and sharply increased as PM2.5 >50 μg/m3. We did not observe a significant modification of sex on the relation between PM2.5 and ADHD. Exposure of pregnant women to PM2.5 above 16 μg/m3 from conception to the early life of their children may increase the risk of ADHD. The government should improve the criteria for air quality control and meet the WHO air quality guidelines to protect pregnant women and children from developing ADHD in the future.
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Affiliation(s)
- Ya-Chu Chang
- Department of Occupational Safety and Health, College of Public Health, China Medical University, Taichung, Taiwan
| | - Wei-Ting Chen
- Department of Atmospheric Sciences, National Taiwan University, Taipei, Taiwan
| | - Shih-Hao Su
- Department of Atmospheric Sciences, Chinese Culture University, Taipei, Taiwan
| | - Chau-Ren Jung
- Department of Public Health, College of Public Health, China Medical University, Taichung, Taiwan; Japan Environment and Children's Study Programme Office, Health and Environmental Risk Division, National Institute for Environmental Studies, Tsukuba, Japan.
| | - Bing-Fang Hwang
- Department of Occupational Safety and Health, College of Public Health, China Medical University, Taichung, Taiwan; Department of Occupational Therapy, College of Medical and Health Science, Asia University, Taichung, Taiwan.
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Yao MM, Chen WT, Min LJ, Han L, Sun NB, Liu XH. Synthesis, crystal structure and fungicidal activities of 3-(Trifluoromethyl)-Pyrazole-4-carboxylic oxime ester derivatives. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.133405] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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