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Hou SS, Wu YL, Luo W, Yin X, Sun ZX, Zhao Q, Zhao GM, Jiang YG, Wang N, Jiang QW. [Association between sedentary behavior and force expiratory volume in 1 second reduction in middle-aged and elderly adults in communities]. ZHONGHUA LIU XING BING XUE ZA ZHI = ZHONGHUA LIUXINGBINGXUE ZAZHI 2023; 44:1092-1098. [PMID: 37482712 DOI: 10.3760/cma.j.cn112338-20221111-00963] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Subscribe] [Scholar Register] [Indexed: 07/25/2023]
Abstract
Objective: To analyze the relationship between sedentary behavior and the force expiratory volume in 1 second (FEV1) reduction in middle-aged and elderly people in communities. Methods: The participants aged ≥40 years were randomly selected from a natural population cohort in Songjiang District, Shanghai, for pulmonary function tests and survey by using international physical activity questionnaire, a generalized additive model was used to analyze the association between sedentary behavior and FEV1 reduction in the study population and different sex-age subgroups. Results: A total of 3 121 study subjects aged ≥40 years were included. The prevalence of FEV1 reduction was 14.8%, which was higher in men than in women. There were 24.8% participants were completely sedentary. The prevalence of FEV1 reduction in women aged <60 years in complete sedentary group was 2.04 (95%CI: 1.11-3.72) times higher than that in non-complete sedentary group. In men aged <60 years, the prevalence of FEV1 reduction increased with daily sedentary time (OR=1.16, 95%CI: 1.04-1.29), and the prevalence of FEV1 reduction was also higher in those with sedentary time >5 hours/day than those with sedentary time ≤5 hours/day (OR=3.02, 95%CI: 1.28-7.16). The sensitivity analysis also found such associations. Conclusions: FEV1 reduction rate in age group <60 years was associated with sedentary behavior. Complete sedentary behavior or absence of moderate to vigorous physical activity played important roles in FEV1 reduction in women, while men were more likely to be affected by increased sedentary time, which had no association with physical activity. Reducing sedentary time to avoid complete sedentary behavior, along with increased physical activity, should be encouraged in middle-aged and elderly adults in communities to improve their pulmonary function.
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Luo W, Zhang T. The clinical outcomes of endoscopic submucosal dissection for superficial circumferential esophageal squamous cell carcinoma may be not as ideal as expected. Gastrointest Endosc 2023; 98:138. [PMID: 37331765 DOI: 10.1016/j.gie.2023.02.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Accepted: 02/06/2023] [Indexed: 06/20/2023]
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Xie R, Han Y, Luo W, Zhao Q, Li Y, Chen G. Palladium-Catalyzed C-H Olefination for Nucleic Acid Production. Curr Protoc 2023; 3:e829. [PMID: 37498139 DOI: 10.1002/cpz1.829] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/28/2023]
Abstract
The palladium-catalyzed direct C-H olefination of unprotected uridine, 2'-deoxyuridine, uridine monophosphate, and uridine analogues are described here. This protocol provides an efficient, atom-economical, and environmentally friendly method for the introduction of an alkenyl group at the C5 position of the uracil without pre-functionalization. A series of C5-alkenylated uridine analogues, including some biologically significant compounds and potential pharmaceutical candidates, were synthesized with exposed hydroxyl groups on the ribose. © 2023 Wiley Periodicals LLC. Basic Protocol 1: The reaction of uridine, 2'-deoxyuridine, and sofosbuvir for the C-H olefination with methyl acrylate Basic Protocol 2: The reaction of uridine and 2'-deoxyuridine for the C-H olefination with styrene.
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Luo W, Zhang T. Cancer-associated fibroblasts: A key target to snatch victory from defeat in therapy resistance associated with the pancreatic cancer stroma. Cancer Lett 2023:216279. [PMID: 37336287 DOI: 10.1016/j.canlet.2023.216279] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Revised: 06/09/2023] [Accepted: 06/12/2023] [Indexed: 06/21/2023]
Abstract
The stroma plays a dual role in the tumour microenvironment (TME), where it can both promote or restrict tumour growth. These effects are significantly modulated by the presence of cancer-associated fibroblasts (CAFs), key components of the TME. The stroma and CAFs influence pancreatic cancer (PC) both physically and functionally. The physical impact involves the deposition of a wall-like matrix, creating a solid barrier that prevents the escape of materials from the inside and the entry of substances from the outside. Functionally, the stroma influences PC treatment through crosstalk between CAFs, cancer cells, and immune cells. Transformation of the "CAFs wall", however, may reduce the original benefit of limiting PC metastasis. In this review, we found that targeting the CAFs and designing novel carriers allowing the entry of drugs or therapeutic agents into the TME are alternative strategies to effectively treat PC. This article aims to provide a specific review focusing on the possibly therapeutic markers and its novel therapeutic strategies of CAFs in PC, discussing the concise treatment methods and its new challenging in current advanced researches.
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Yang J, Bergdorf K, Yan C, Luo W, Chen SC, Ayers GD, Liu Q, Liu X, Boothby M, Weiss VL, Groves SM, Oleskie AN, Zhang X, Maeda DY, Zebala JA, Quaranta V, Richmond A. CXCR2 expression during melanoma tumorigenesis controls transcriptional programs that facilitate tumor growth. Mol Cancer 2023; 22:92. [PMID: 37270599 PMCID: PMC10239119 DOI: 10.1186/s12943-023-01789-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Accepted: 05/16/2023] [Indexed: 06/05/2023] Open
Abstract
BACKGROUND Though the CXCR2 chemokine receptor is known to play a key role in cancer growth and response to therapy, a direct link between expression of CXCR2 in tumor progenitor cells during induction of tumorigenesis has not been established. METHODS To characterize the role of CXCR2 during melanoma tumorigenesis, we generated tamoxifen-inducible tyrosinase-promoter driven BrafV600E/Pten-/-/Cxcr2-/- and NRasQ61R/INK4a-/-/Cxcr2-/- melanoma models. In addition, the effects of a CXCR1/CXCR2 antagonist, SX-682, on melanoma tumorigenesis were evaluated in BrafV600E/Pten-/- and NRasQ61R/INK4a-/- mice and in melanoma cell lines. Potential mechanisms by which Cxcr2 affects melanoma tumorigenesis in these murine models were explored using RNAseq, mMCP-counter, ChIPseq, and qRT-PCR; flow cytometry, and reverse phosphoprotein analysis (RPPA). RESULTS Genetic loss of Cxcr2 or pharmacological inhibition of CXCR1/CXCR2 during melanoma tumor induction resulted in key changes in gene expression that reduced tumor incidence/growth and increased anti-tumor immunity. Interestingly, after Cxcr2 ablation, Tfcp2l1, a key tumor suppressive transcription factor, was the only gene significantly induced with a log2 fold-change greater than 2 in these three different melanoma models. CONCLUSIONS Here, we provide novel mechanistic insight revealing how loss of Cxcr2 expression/activity in melanoma tumor progenitor cells results in reduced tumor burden and creation of an anti-tumor immune microenvironment. This mechanism entails an increase in expression of the tumor suppressive transcription factor, Tfcp2l1, along with alteration in the expression of genes involved in growth regulation, tumor suppression, stemness, differentiation, and immune modulation. These gene expression changes are coincident with reduction in the activation of key growth regulatory pathways, including AKT and mTOR.
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Luo W, Zhang T. Is endoscopic sleeve gastroplasty more effective in reducing the occurrence of major adverse events? Gastrointest Endosc 2023; 97:1169-1170. [PMID: 37208043 DOI: 10.1016/j.gie.2023.01.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Revised: 01/05/2023] [Accepted: 01/06/2023] [Indexed: 05/21/2023]
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Qiu J, Feng M, Yang G, Su D, Zhao F, Liu Y, Tao J, Luo W, Zhang T. PRKRA promotes pancreatic cancer progression by upregulating MMP1 transcription via the NF-κB pathway. Heliyon 2023; 9:e17194. [PMID: 37484321 PMCID: PMC10361375 DOI: 10.1016/j.heliyon.2023.e17194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Revised: 06/07/2023] [Accepted: 06/09/2023] [Indexed: 07/25/2023] Open
Abstract
Objective Pancreatic cancer (PC) is highly malignant, but the underlying mechanisms of cancer progression remain unclear. PRKRA is involved in cellular stress response, but its role in PC was unknown. Methods The expression of PRKRA between normal and tumor tissues were compared, and the prognostic value of PRKRA was evaluated. SiRNA and plasmids were applied to investigate the effects of PRKRA on PC cells. Organoids and cell lines with knockout and overexpression of PRKRA were established by CRISPR/Cas9 and lentivirus. The effects of PRKRA on PC were evaluated in vivo by cell-derived xenografts. The downstream genes of PRKRA were screened by transcriptome sequencing. The regulation of the target gene was validated by RT-qPCR, western blot, ChIP and dual luciferase reporter assay. Besides, the correlation between PRKRA and gemcitabine sensitivity was investigated by PC organoids. Results PRKRA was significantly overexpressed in PC tissues and independently associated with poor prognosis. PRKRA promoted the proliferation, migration, and chemoresistance of PC cells. The proliferation of PC organoids was decreased by PRKRA knockout. The growth and chemoresistance of xenografts were increased by PRKRA overexpression. Mechanistically, PRKRA upregulated the transcription of MMP1 via NF-κB pathway. ChIP and dual luciferase reporter assay showed that NF-κB subunit P65 could bind to the promoter of MMP1. The sensitivity of PC organoids to gemcitabine was negatively correlated with the expression of PRKRA and MMP1. Conclusions Our study indicated that the PRKRA/NF-κB/MMP1 axis promoted the progression of PC and may serve as a potential therapeutic target and prognosis marker.
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Wang S, Cui W, Miao C, Tang N, Lin L, Wu Z, An Q, Tian P, Pang J, Luo W. Efficient hydrodeoxygenation of methyl levulinate into pentanoic biofuels over Ru/USY catalysts. Dalton Trans 2023. [PMID: 37232037 DOI: 10.1039/d3dt01169k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Catalytic hydrodeoxygenation of neat methyl levulinate into pentanoic biofuels is one of the pivotal reactions in biomass valorization. A combined pentanoic acid/methyl pentanoate yield of 92% can be achieved for Ru/USY with a Si/Al ratio of 15 at 220 °C and 40 bar H2. The superior performance of Ru/USY-15 for the efficient production of pentanoic biofuels is attributed to the optimal site balance between the Ru species and strong acid sites (ca. 1 : 5).
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Luo W, Zhang T. Primary tumor resection enhances the survival of pancreatic neuroendocrine carcinoma patients with liver metastasis under the definition of 2019 WHO classification. J Cancer Res Clin Oncol 2023:10.1007/s00432-023-04847-3. [PMID: 37184680 DOI: 10.1007/s00432-023-04847-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Accepted: 05/08/2023] [Indexed: 05/16/2023]
Abstract
BACKGROUND With the update and release of the newest version of WHO classification (2019) for neuroendocrine neoplasm, the clinical features, risk factors of prognosis and the effect of surgical treatment on newly classified pancreatic neuroendocrine carcinoma (pNEC) patients with liver metastasis were not deeply analyzed. In the present study, we tried to reveal the clinical features, and prognostic factors of pNEC patients with liver metastasis with the newest definition of WHO 2019, and explore whether primary tumor resection (PTR), chemotherapy and radiotherapy affect overall survival (OS) and cancer-specific survival (CSS) in those patients. METHODS We collected data from pNEC patients with liver metastasis from the Surveillance, Epidemiology, and End Results (SEER) database who were diagnosed between 2010 and 2019. We strictly selected pNEC patients according to the 2019 WHO classification criteria. The univariate and multivariate Cox regression analysis were used to determine independent predictors of the survival of these patients. The forest plots map was drawn by R-4.2.2 software to display the results of the multivariate analysis visually. Kaplan-Meier method was used to estimate the OS and CSS. Based on the multivariate analysis outcomes, we established the predictable nomogram model to predict the prognosis of pNEC patients with liver metastasis. The calibration plots were shown to prove the predictive value of the nomogram predictable model. RESULTS We identified 205 eligible pNEC patients with liver metastasis. According to the multivariable Cox regression analysis in this study, we found that PTR, chemotherapy, primary tumor size and diagnosis to treatment time were independent prognostic factors for both OS and CSS. Kaplan-Meier survival curves demonstrated that PTR and chemotherapy were correlated with increased survival for pNEC patients with liver metastasis. The accuracy of the nomogram model was visually proved by the calibration plot with acceptable predictive performance. CONCLUSION Four independent predictors of prognosis in pNEC patients with liver metastasis were identified in this study, including PTR, chemotherapy, tumor size and diagnosis to treatment time. PTR and chemotherapy for pNEC with liver metastasis could lead to a better prognosis, which may provide inspiration for practical clinical guidelines.
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Zhang X, Miao J, Yang J, Liu C, Huang J, Song J, Xie D, Yue C, Kong W, Hu J, Luo W, Liu S, Li F, Zi W. DWI-Based Radiomics Predicts the Functional Outcome of Endovascular Treatment in Acute Basilar Artery Occlusion. AJNR Am J Neuroradiol 2023; 44:536-542. [PMID: 37080720 PMCID: PMC10171394 DOI: 10.3174/ajnr.a7851] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Accepted: 03/15/2023] [Indexed: 04/22/2023]
Abstract
BACKGROUND AND PURPOSE Endovascular treatment is a reference treatment for acute basilar artery occlusion (ABAO). However, no established and specific methods are available for the preoperative screening of patients with ABAO suitable for endovascular treatment. This study explores the potential value of DWI-based radiomics in predicting the functional outcomes of endovascular treatment in ABAO. MATERIALS AND METHODS Patients with ABAO treated with endovascular treatment from the BASILAR registry (91 patients in the training cohort) and the hospitals in the Northwest of China (31 patients for the external testing cohort) were included in this study. The Mann-Whitney U test, random forests algorithm, and least absolute shrinkage and selection operator were used to reduce the feature dimension. A machine learning model was developed on the basis of the training cohort to predict the prognosis of endovascular treatment. The performance of the model was evaluated on the independent external testing cohort. RESULTS A subset of radiomics features (n = 6) was used to predict the functional outcomes in patients with ABAO. The areas under the receiver operating characteristic curve of the radiomics model were 0.870 and 0.781 in the training cohort and testing cohort, respectively. The accuracy of the radiomics model was 77.4%, with a sensitivity of 78.9%, specificity of 75%, positive predictive value of 83.3%, and negative predictive value of 69.2% in the testing cohort. CONCLUSIONS DWI-based radiomics can predict the prognosis of endovascular treatment in patients with ABAO, hence allowing a potentially better selection of patients who are most likely to benefit from this treatment.
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Huo W, Yuan X, Li X, Luo W, Xie J, Shi B. Increasing acceptance of medical AI: The role of medical staff participation in AI development. Int J Med Inform 2023; 175:105073. [PMID: 37119693 PMCID: PMC10125218 DOI: 10.1016/j.ijmedinf.2023.105073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2022] [Revised: 04/06/2023] [Accepted: 04/12/2023] [Indexed: 05/01/2023]
Abstract
BACKGROUND Medical artificial intelligence (AI) in varying degrees has exerted significant influence on many medical fields, especially in the midst of the COVID-19 pandemic. However, little is known regarding how to address the reluctance of medical staff to use AI technology. While recent research has highlighted the importance of medical staff participation in the development of AI, the current understanding of influence of medical staff participation on acceptance of AI is limited. OBJECTIVES To provide insights into the mechanism that how medical staff participation impacts on the medical staff's acceptance of AI and to examine the moderating effect of speciesism. METHODS This study was conducted from 6th August to 3rd September. Data was collected from doctors and nurses and a total of 288 valid questionnaires were obtained. Smart PLS 3.2.8 was used as partial least square (PLS) software to validate the research model. RESULTS The study determined that medical staff participation had a significant impact on acceptance of medical AI-IDT (β = 0.35, p ≤ 0.001) and acceptance of medical AI-ADT (β = 0.44, p ≤ 0.001). The results also show that AI self-efficacy and AI anxiety have significant mediating effects and speciesism has significant moderating effects among the theoretical model. CONCLUSIONS This study provides insights into ways to explore influence factors of acceptance of AI based on user participation perspective. The results indicate that medical staff participation enhances acceptance of medical AI through the cognitive path (i.e., AI self-efficacy) and the affective path (i.e., AI anxiety). These results have practical implications for how organizations assist the staff to accommodate themselves to AI technology in the future.
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Yang J, Bergdorf K, Yan C, Luo W, Chen SC, Ayers D, Liu Q, Liu X, Boothby M, Groves SM, Oleskie AN, Zhang X, Maeda DY, Zebala JA, Quaranta V, Richmond A. CXCR2 expression during melanoma tumorigenesis controls transcriptional programs that facilitate tumor growth. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.02.22.529548. [PMID: 36865260 PMCID: PMC9980137 DOI: 10.1101/2023.02.22.529548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/25/2023]
Abstract
Background Though the CXCR2 chemokine receptor is known to play a key role in cancer growth and response to therapy, a direct link between expression of CXCR2 in tumor progenitor cells during induction of tumorigenesis has not been established. Methods To characterize the role of CXCR2 during melanoma tumorigenesis, we generated tamoxifen-inducible tyrosinase-promoter driven Braf V600E /Pten -/- /Cxcr2 -/- and NRas Q61R /INK4a -/- /Cxcr2 -/- melanoma models. In addition, the effects of a CXCR1/CXCR2 antagonist, SX-682, on melanoma tumorigenesis were evaluated in Braf V600E /Pten -/- and NRas Q61R /INK4a -/- mice and in melanoma cell lines. Potential mechanisms by which Cxcr2 affects melanoma tumorigenesis in these murine models were explored using RNAseq, mMCP-counter, ChIPseq, and qRT-PCR; flow cytometry, and reverse phosphoprotein analysis (RPPA). Results Genetic loss of Cxcr2 or pharmacological inhibition of CXCR1/CXCR2 during melanoma tumor induction resulted in key changes in gene expression that reduced tumor incidence/growth and increased anti-tumor immunity. Interestingly, after Cxcr2 ablation, Tfcp2l1 , a key tumor suppressive transcription factor, was the only gene significantly induced with a log 2 fold-change greater than 2 in these three different melanoma models. Conclusions Here, we provide novel mechanistic insight revealing how loss of Cxcr2 expression/activity in melanoma tumor progenitor cells results in reduced tumor burden and creation of an anti-tumor immune microenvironment. This mechanism entails an increase in expression of the tumor suppressive transcription factor, Tfcp2l1, along with alteration in the expression of genes involved in growth regulation, tumor suppression, stemness, differentiation, and immune modulation. These gene expression changes are coincident with reduction in the activation of key growth regulatory pathways, including AKT and mTOR.
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Guo K, Zeng C, Jiang H, Luo W, Liang Y, Zhen Z. Recurrent nuclear protein in testis carcinoma of submandibular gland treated with multimodality therapy: A case report and review of the literature. PEDIATRIC HEMATOLOGY ONCOLOGY JOURNAL 2023. [DOI: 10.1016/j.phoj.2023.02.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/08/2023] Open
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Luo W, Gu Y, Zhang T. Letter to the editor: HCC EV ECG score: An extracellular vesicle-based protein assay for detection of early-stage HCC. Hepatology 2023; 77:E51-E52. [PMID: 36056783 DOI: 10.1002/hep.32723] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Accepted: 08/02/2022] [Indexed: 12/08/2022]
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Lin ZT, Chen GH, Peng X, Zhang ZH, Li T, Lin HX, Liang SS, Zheng YB, Yao ZP, Luo W. A 2-bp deletion in intron 1 of TMEM182 is associated with TMEM182 mRNA expression and chicken body weight. Br Poult Sci 2023; 64:11-18. [PMID: 35759289 DOI: 10.1080/00071668.2022.2094217] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
1. Searching for molecular markers related to growth and carcase traits plays a critical role in improvement of the production performance of broilers. Previous studies found that transmembrane protein 182 (TMEM182) inhibits skeletal muscle development, growth, and regeneration, implying that the TMEM182 gene plays an important role during the development process of skeletal muscle.2. A novel 2-bp indel in intron 1 of TMEM182 was detected in a yellow chicken population derived from the cross of White Recessive Rock chickens with Xinghua chickens, and three genotypes II (inserted homozygote), ID (inserted and deleted heterozygote) and DD (deleted homozygote) were observed. Association analyses indicated that the indel was significantly associated with the body weight, muscle fibre area, breast muscle weight and wing weight in the F2 population.3. The expression of TMEM182 in leg muscle of chickens with II genotype was higher than that with DD genotype, with the 2-bp indel located in one of the putative PAX4 binding sites. Further research through luciferase assays revealed that the PAX4 could bind to the putative binding site and increase the TMEM182 transcription, with the 2-bp deletion disrupting the binding of PAX4.4. The present study provides evidence for the association of the novel 2-bp indel in intron 1 of TMEM182 with the growth and carcase traits of chickens. This 2-bp indel could be used as a genetic marker in broiler breeding.
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Luo W, Zhang Y, Zhang T. Letter to the editor: Successful treatment of multidrug-resistant hepatis C after >12 months of continuous therapy with direct-acting antivirals. Hepatology 2023; 77:E26-E27. [PMID: 36031711 DOI: 10.1002/hep.32706] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Accepted: 07/29/2022] [Indexed: 01/28/2023]
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Luo W, Wang Y, Li Y, Zhang T. Letter to the editor: Targeted decrease of portal hepatic pressure gradient improves ascites control after TIPS. Hepatology 2023; 77:E35-E36. [PMID: 36054013 DOI: 10.1002/hep.32755] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Accepted: 07/26/2022] [Indexed: 01/28/2023]
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Sun XY, Han LH, Li XX, Hu BL, Luo W, Liu L. Transmutation of MAs and LLFPs with a lead-cooled fast reactor. Sci Rep 2023; 13:1693. [PMID: 36717698 PMCID: PMC9886923 DOI: 10.1038/s41598-023-29002-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Accepted: 01/27/2023] [Indexed: 01/31/2023] Open
Abstract
The management of nuclear wastes has long been a problem that hinders the sustainable and clean utilization of nuclear energy since the advent of nuclear power. These nuclear wastes include minor actinides (MAs: 237Np, 241Am, 243Am, 244Cm and 245Cm) and long-lived fission products (LLFPs: 79Se, 93Zr, 99Tc, 107Pd, 129I and 135Cs), and yet are hard to be handled. In this work, we propose a scheme that can transmute almost all the MAs and LLFPs with a lead-cooled fast reactor (LFR). In this scheme, the MAs and the LLFPs are loaded to the fuel assembly and the blanket assembly for transmutation, respectively. In order to study the effect of MAs loading on the operation of the core, the neutron flux distribution, spectra, and the keff are further compared with and without MAs loading. Then the LLFPs composition is optimized and the support ratio is obtained to be 1.22 for 237Np, 1.63 for 241Am, 1.27 for 243Am, 1.32 for 79Se, 1.53 for 99Tc, 1.02 for 107Pd, and 1.12 for 129I, respectively, indicating that a self-sustained transmutation can be achieved. Accordingly, the transmutation rate of these nuclides was 13.07%/y for 237Np, 15.18%/y for 241Am, 13.34%/y for 243Am, 0.58%/y for 79Se, 0.92%/y for 99Tc, 1.17%/y for 107Pd, 0.56%/y for 129I. Our results show that a lead-cooled fast reactor can be potentially used to manage nuclear wastes with high levels of long-lived radioactivity.
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Wang Y, Luo W, Li Y. [ 68Ga]Ga-FAPI-04 PET MRI/CT in the evaluation of gastric carcinomas compared with [ 18F]-FDG PET MRI/CT: a meta-analysis. Eur J Med Res 2023; 28:34. [PMID: 36653862 PMCID: PMC9847115 DOI: 10.1186/s40001-023-00997-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Accepted: 01/05/2023] [Indexed: 01/19/2023] Open
Abstract
OBJECTIVES To compare the detection rates of [68Ga]Ga-FAPI-04 PET MRI/CT vs. [18F]-FDG PET MRI/CT in gastric cancer. METHODS An extensive librarian-led literature search of PubMed, Embase, Web of Science, the Cochrane Central Library, and ClinicalTrials.gov was performed. The primary outcomes were sensitivity in patient-based evaluations, detection of lymph node metastases, and peritoneal involvement. RESULTS Five studies, including 148 participants, were analyzed. [68Ga]Ga-FAPI-04 PET MRI/CT has a comparatively high sensitivity in patient-based evaluations compared with [18F]-FDG PET MRI/CT (risk difference = 0.16, 95% CI 0.09-0.22, P < 0.00001). The [68Ga]Ga-FAPI-04 PET MRI/CT group has a comparatively higher sensitivity in detecting lymph node metastases (RR = 0.15, 95% CI 0.01-0.29, P = 0.04), peritoneal involvement (RR = 0.55, 95% CI 0.38-0.72, P < 0.00001) in gastric cancer than [18F]-FDG PET MRI/CT group. CONCLUSIONS This systematic review confirmed the advantage of [68Ga]Ga-FAPI-04 PET MRI/CT in gastric cancer. [68Ga]Ga-FAPI-04 PET MRI/CT was superior to [18F]-FDG PET MRI/CT in detecting the primary tumor, lymph node metastases, and peritoneal metastases. More studies are needed for the sensitivity and specificity of [68Ga]Ga-FAPI-04 PET MRI/CT in different pathological types of gastric cancer.
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Tsuppayakorn-Aek P, Bovornratanaraks T, Ahuja R, Luo W, Kotmool K. Hydrogen-induced phase stability and phonon mediated-superconductivity in two-dimensional van der Waals Ti 2C MXene monolayer. Phys Chem Chem Phys 2023; 25:2227-2233. [PMID: 36594791 DOI: 10.1039/d2cp05470a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Herein, we report the phase stability of the hydrogenated Ti2C MXene monolayer using an evolutionary algorithm based on density functional theory. We predict the existence of hexagonal Ti2CH, Ti2CH2, and Ti2CH4. The dynamic and energetic stabilities of the predicted structures are verified through phonon dispersion and formation energy, respectively. The electron-phonon coupling is carefully investigated by employing isotropic Eliashberg theory. The Tc values are 0.2 K, 2.3 K, and 9.0 K for Ti2CH, Ti2CH2, and Ti2CH4, respectively. The translation and libration adopted by stretch and bent vibrations contribute to the increasing Tc of Ti2CH4. The high-frequency hydrogen modes contribute to the critical temperature increase. Briefly, this work not only highlights the effect of H-content on the increments of Tc for Ti2CHx, but also demonstrates the first theoretical evidence of the existence of H-rich MXene in the example of Ti2CH4. Therefore, it potentially provides a guideline for developing hydrogenated 2D superconductive applications.
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Li H, Shen Y, Xiao X, Jiang H, Gu Q, Zhang Y, Lin L, Luo W, Zhou S, Zhao J, Wang A, Zhang T, Yang B. Controlled-Release Mechanism Regulates Rhodium Migration and Size Redistribution Boosting Catalytic Methane Conversion. ACS Catal 2023. [DOI: 10.1021/acscatal.2c05463] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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Lin L, Zhang G, Kang L, Yu T, Su Y, Zeng G, Chu S, Luo W. Selective Oxidation of Methane into Formic Acid over ZIF‐8‐Encapsulated Mononuclear Fe Species under Mild Conditions. ChemCatChem 2022. [DOI: 10.1002/cctc.202201600] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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Tian ML, Xu J, Luo W. [Analysis of the current status of needle and syringe exchange programmes for injecting drug users in China]. ZHONGHUA LIU XING BING XUE ZA ZHI = ZHONGHUA LIUXINGBINGXUE ZAZHI 2022; 43:1907-1911. [PMID: 36572462 DOI: 10.3760/cma.j.cn112338-20220630-00579] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Objective: To analyze the needle and syringe exchange programme (NSEP) implementation among injecting drug users (IDUs) in China and provide data support and a scientific reference for intervention among IDUs. Methods: All the statistical reports of high-risk behavior interventions during 2007-2021 were collected from the HIV/AIDS Comprehensive Response Information Management System. Descriptive analysis was used to analyze the changes in the number of NSEP points, regional distribution of NSEP points, the number of people covered, and the HIV detection rate in China from 2007 to 2021. Excel 2016 software was used to plot the variation trend. SAS 9.4 software was used for the needle recovery and HIV-positive detection rate to do the χ2 trend test. Results: There were 578 NSEP sites in 11 provinces (autonomous regions and municipalities) by the end of 2021, covering 21 215 IDUs. 2014-2021, the number of NSEP sites and the number of IDUs covered decreased year by year. Each injecting drug user participating in NSEP received more than 200 clean needles annually. The needle recovery rate showed an increasing trend(Z=170.26, P<0.001) from 2009 to 2016 but showed a decreasing trend (Z=-91.96, P<0.001) from 2016 to 2021. The rate of HIV-positive in IDUs participating in NSEP showed a downward trend (Z=-66.53, P<0.001), which decreased from 5.8% (2 709/46 591) in 2011 to 0.1% (19/21 215) in 2021, decreasing 98.3%. Conclusions: NSEP is a vital intervention to prevent HIV transmission through injecting drugs. There were still many difficulties. It is necessary to strengthen further communication and coordination with government and public security departments to understand and support for NSEP. Targeted publicity and education are needed to be carried out for local IDUs to encourage them to participate in NSEP and reduce their dropout. Meanwhile, peer educators supervision and management also need to be strengthened.
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Luo W, Sun Y, Gao F, Liu Y. Linking self-efficacy and organizational identification: a moderated mediation model based on a self-verification perspective. JOURNAL OF MANAGERIAL PSYCHOLOGY 2022. [DOI: 10.1108/jmp-01-2021-0008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
PurposeThe purpose of this paper is to examine the effect of employees' self-efficacy on employees' organizational identification. Based on a self-verification perspective, this paper focuses on the mediating role of leader–member exchange social comparison (LMXSC) and the moderating role of perceived organizational justice.Design/methodology/approachThe authors conducted a field survey (Study 1) of 207 employees recruited from multiple financial organizations and tested a moderated mediation model using Hayes's (2018) PROCESS macro. The authors conducted another scenario-based experiment (Study 2) using a sample of 151 employees recruited online to further establish causality in our model.FindingsResults suggest that employees' self-efficacy is positively associated with their LMXSC, which, in turn, positively impacts employees' organizational identification. The positive relationship between LMXSC and organizational identification is stronger when employees' perceived organizational justice is higher. The indirect effect of self-efficacy on organizational identification through LMXSC is also strengthened by perceived organizational justice.Practical implicationsManagers are encouraged to develop employees' self-efficacy and to create a fair environment to promote employees' identification with the organization.Originality/valueThis research extends organizational identification literature by examining how and when employees' self-efficacy, a dispositional predictor, leads to employees' identification with the organization from a self-verification perspective.
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Li H, Shen J, Zhang Y, Hu L, Luo W. 6-Shogaol protects against isoproterenol-induced cardiac injury in rats through attenutating oxidative stress, inflammation, apoptosis and activating nuclear respiratory factor-2/heme oxygenase-1 signaling pathway. JOURNAL OF PHYSIOLOGY AND PHARMACOLOGY : AN OFFICIAL JOURNAL OF THE POLISH PHYSIOLOGICAL SOCIETY 2022; 73. [PMID: 37087565 DOI: 10.26402/jpp.2022.6.06] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Accepted: 12/31/2022] [Indexed: 04/24/2023]
Abstract
The current study investigated the preventive effect of 6-Shogaol on isoproterenol hydrochloride (ISO)-induced myocardial cardiac injury. 6-Shogaol (50 mg/kg b.w.) was administered for 14 days at pretreatment and ISO-induction (85 mg/kg b.w.) for the last two days (13th and 14th days) by subcutaneous injection. Cardiac markers in serum like creatine kinase (CK), creatine kinase-MB (CK-MB), lactate dehydrogenase (LDH), cardiac troponins T (cTn T) and I (cTn I) increased in ISO-induced rats. Moreover, lipid peroxidative markers like thiobarbituric acid reactive substances (TBARS) and lipid hydroperoxides (LOOH) were raised, and the activities/level of superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPx) and reduced glutathione (GSH) were diminished in ISO-treated heart tissue. In addition, inflammatory and nuclear respiratory factor (Nrf)-2 signalling molecules were upregulated in ISO-induced ischemic rats. 6-Shogaol pretreatment decreased the activities of cardiac and lipid peroxidative markers and enhanced the antioxidant status in ISO-induced cardiac injury rats. Further, 6-Shogaol pretreatment inhibited serum inflammatory markers: tumour necrosis factor-alpha (TNF-α), interleukin-6 (IL-6), nuclear factor-kappaB (NF-κB), Nrf-2 molecule and heme oxygenase (HO)-1 in ISO-induced cardial damage rats. We noticed the effect of 6-Shogaol inhibited pro-apoptotic genes like B-cell lymphoma 2 (Bcl-2)-associated X protein (Bax), Fas, caspase-3, -8, -9, cytochrome C, and inflammatory genes and increased Bcl-2 expression in ISO-treated rats. The cardioprotective activity of 6-Shogaol in rats with ISO-induced myocardial damage may be due to its ability to reduce oxidative stress, inflammation, and apoptosis, perhaps via the Nrf-2/HO-1 signalling pathway.
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