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1.
Ecotoxicol Environ Saf ; 279: 116475, 2024 May 21.
Artigo em Inglês | MEDLINE | ID: mdl-38781889

RESUMO

Nonylphenol (NP) is one of the common pollutants in the environment that have toxic effects on aquatic animals. Nevertheless, little is known about the possible toxicity mechanism of NP on the hepatopancreas of Litopenaeus vannamei. In the present study, the detrimental effects of NP on the hepatopancreas of the L. vannamei were explored at the histological and transcriptomic levels. The findings indicated that after NP exposed for 3, 12, and 48 h, the hepatopancreas histology was changed significantly. Transcriptomic analysis showed that a total of 4302, 3651, and 4830 differentially expressed genes (DEGs) were identified at 3, 12, and 48 h following NP exposure. All these DEGs were classified into 12 clusters according to the expression patterns at different time points. GO and KEGG enrichment analyses of DEGs were also performed, immunological, metabolic, and inflammatory related pathways, including arachidonic acid metabolism (ko00590), the PPAR signaling pathway (ko03320), and the regulation of TRP channels by inflammatory mediators (ko04750) were significantly enriched. Six DEGs were selected for validation by quantitative real-time PCR (qRT-PCR) and the results confirmed the reliability of transcriptome data. All results indicated that NP is toxic to L. vannamei by damaging the histopathological structure and disrupting the biological function. The findings would provide a theoretical framework for lowering or limiting the detrimental impacts of NP on aquaculture and help us to further study the molecular toxicity of NP in crustaceans.

2.
J Cell Commun Signal ; 18(1): e12016, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38545258

RESUMO

Long noncoding RNAs (lncRNAs) are involved in regulatory processes in laryngeal squamous cell carcinoma (LSCC) at posttranscriptional epigenetic modification level. Yet, the function and underlying mechanism behind lncRNA AC004943.2 in LSCC is still obscure. Therefore, the potential role of AC004943.2 in LSCC progression was investigated. The expression of gene or protein was tested by real-time quantitative polymerase chain reaction and western blot. MTT, colony formation, wound healing, and transwell experiments were applied to detect LSCC cell viability, proliferation, migration and invasion, respectively. The interaction among AC004943.2, miR-135a-5p, and protein tyrosine kinase 2 (PTK2) were analyzed by bioinformatics prediction and luciferase assay. AC004943.2 was highly expressed in LSCC cells compared with normal human bronchial epithelial cells, while miR-135a-5p was lowly expressed. AC004943.2 knockdown or miR-135a-5p overexpression inhibited LSCC cell viability, proliferation, migration and invasion. Mechanistically, AC004943.2 increased PTK2 expression in LSCC cells by sponging miR-135a-5p. Furthermore, miR-135a-5p knockdown inverted the inhibitory effect of AC004943.2 silencing on LSCC cell malignant behaviors. MiR-135a-5p upregulation attenuated the PTK2/PI3K pathway to inhibit progression of LSCC. AC004943.2 facilitated the cancerous phenotypes of LSCC cells by activating the PTK2/PI3K pathway through targeting miR-135a-5p, which furnished a therapeutic candidate for LSCC treatment.

3.
Chemosphere ; 354: 141646, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-38452979

RESUMO

Zinc (Zn) is an essential trace element for the normal physiological function of aquatic organisms, but it could become toxic to organisms when the concentration increased in water. As the first line of defense, the shrimp intestines are the most susceptible organ to environmental stress. In this study, the chronic toxicity of 0 (control, IC), 0.01(IL), 0.1(IM) and 1 mg/L (IH) Zn in intestines of Litopenaeus vannamei was investigated from the perspectives of biochemical, histological and transcriptional changes after exposure for 30 days. The results showed that the intestinal tissue basement membrane is swollen in the IM and IH groups and detached in the IH group. The total antioxidant capacities (T-AOC) were reduced while the content of malondialdehyde (MDA) were increased significantly in IM and IH groups. The production of reactive oxygen species (ROS) was increased significantly in IH group. Many differentially expressed genes (DEGs) were identified in IL, IM and IH groups, respectively. GO and KEGG enrichment analyses were conducted on the DEGs to obtain the underlying biological processes and pathways. The gene modules related to the sample were identified by weighted gene co-expression network analysis (WGCNA), and genes in modules highly corelated with IH group were mainly enriched in immune related pathways. Nine DEGs were selected for validation by quantitative real time PCR (qRT-PCR) and the expression profiles of these DEGs kept a well consistent with the high-throughput data, which confirmed reliability of transcriptome results. Additionally, 10 DEGs were screened to detect the changes of expression level in different groups. All these results indicated that Zn exposure could damage the intestinal barrier, provoke oxidative stress, reduce the immune function, increase the susceptibility to bacterial infections of L. vannamei and cause inflammation, ultimately result in cell apoptosis. Our study provides more perspective on the stress response of crustacean under Zn exposure.


Assuntos
Penaeidae , Zinco , Animais , Zinco/toxicidade , Reprodutibilidade dos Testes , Perfilação da Expressão Gênica , Transcriptoma , Penaeidae/genética , Intestinos
4.
Heliyon ; 10(6): e27744, 2024 Mar 30.
Artigo em Inglês | MEDLINE | ID: mdl-38509992

RESUMO

Although the elements that lead local governments to adopt sustainable development behaviors have been examined, the underlying processes that local governments adopt to accomplish green development behavior (GDB) lack systematic theoretical analysis. This study aims to investigate the determinants influencing local governments' implementation of GDB from the organizational internal and external perspectives. This study employed grounded theory to analyze the data and develop an influencing factor model of local government green development behavior (GDB-LG) after interviewing 53 Chinese local officials. Additionally, through integrating process organization research with new institutional theory, the mechanism that explains how these elements influence GDB was investigated. The results of the study demonstrate that the influencing factors model could give municipal governments clear guidance when creating sensible green development policies, further enhancing the efficacy of GDB.

5.
Diabetes Metab Syndr Obes ; 17: 453-463, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38299196

RESUMO

Purpose: The present study aimed to evaluate the efficiency of traditional anthropometric and body composition parameters in predicting apnea hypopnea index (AHI) change after weight loss. Patients and Methods: Chinese adults with overweight and obesity were included into this study containing two parts. A cross-sectional study was conducted in 137 individuals using the baseline data from two weight loss intervention trials. The second part was the weight-loss intervention study conducted in 60 overweight and obese patients with obstructive sleep apnea (OSA). All participants underwent physical examination, bioelectrical impedance analysis and overnight polysomnography. Multivariate linear regression models were used to identify the most accurate parameters to predict AHI and the mediation analysis to evaluate the mediators between weight loss and AHI reduction. Results: Waist circumference (WC), body mass index and fat mass were positively associated with AHI after adjusting multiple collinearities in the cross-sectional study. After weight-loss intervention, body weight decreased from 94.6 ± 15.3 to 88.0 ± 13.9 kg, and AHI decreased from 41.9 (13.0,66.9) to 20.7 (8.7,51.2) events/h. Among these parameters, only percentage changes in WC and AHI across the intervention were positively intercorrelated after controlling for covariates (adjusted r = 0.271, P = 0.041). The mediation analysis supported WC as a mediator between weight loss and AHI reduction (standardized indirect effect [95% CI] = 4.272[0.936,7.999]). Conclusion: Both general and abdominal obesity are of high prognostic value for OSA. WC as an easily accessible parameter mediates the effects of weight loss in decreasing OSA severity.

6.
Plants (Basel) ; 13(2)2024 Jan 17.
Artigo em Inglês | MEDLINE | ID: mdl-38256826

RESUMO

Plant nutrition is connected to defense against insect herbivores, but the exact mechanism underlying the effect of the nitrogen (N) supply on the anti-herbivore capacity of eggplants (Solanum melongena) has not been studied in detail. Therefore, we examined the impact of low (LN, 0.5 mM) and high (HN, 5 mM) nitrate levels on eggplant resistance against the western flower thrips Frankliniella occidentalis (WFT), a major destructive eggplant pest. Our results showed that LN plants displayed enhanced defense responses to WFT compared to HN plants. This included increased transcript levels of key genes in the jasmonic acid (JA) pathway, the accumulation of JA-amido conjugates (jasmonoyl-isoleucine, jasmonoyl-phenylalanine, and jasmonoyl-valine), JA precursor (12-oxophytodienoic acid), and methyl jasmonate, higher transcript levels of defense marker genes (MPK3, MPK7, and WRKY53), and increased activities of polyphenol oxidase and peroxidase upon a WFT attack. Our findings suggest that N deficiency can prime JA-mediated defense responses in eggplants, resulting in increased anti-herbivore resistance.

7.
Behav Sci (Basel) ; 13(10)2023 Oct 01.
Artigo em Inglês | MEDLINE | ID: mdl-37887463

RESUMO

Although researchers have examined organizational sustainability practices, a specific interpretation of local government green development practices remains for supplemental analysis. This study conducted an empirical survey of 53 local officials from departments related to green development to understand the key processes and practices of green development behavior of local governments in China. The key findings indicate that the main stakeholders involved in the green development practices of Chinese local governments consist of enterprises and residents. In part, local government green development practices emphasize the greening of enterprises, especially in the step of process environmental regulation. The new institutionalism theory and the organizational process research provide dependable insights into green development behaviors. Our findings further shed light on the process of cross-sectoral cooperation across local government departments in green development, contributing to local multi-sectoral interactions for regional green development.

8.
Environ Sci Pollut Res Int ; 30(54): 115571-115584, 2023 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-37884725

RESUMO

Global warming, a persistent issue, needs comprehensive solutions. Shifting to sustainable resources and promoting green initiatives like green logistics, green investments, and environmental policies (such as environmental technology and environmental tax) are potential ways to address this challenge. The current study explores relationships between these factors and transportation emissions in China, with a focus on achieving the 2060 carbon neutrality goal. To investigate the research gap, the study employs the novel econometric, method of moments quantile regression (MMQR) for benchmark estimation and the bootstrap quantile regression (BSQR) technique for sensitivity estimations from 2000/Q1 to 2019/Q4, and the study confirms the hypothesis of "carbon neutrality." The results reveal that green logistics and green finance have a negative impact on transportation emissions across all quantiles. Environmental technology, environmental tax, and renewable energy also help reduce transportation emissions. On the contrary, economic growth increases transportation emissions, with a greater effect in the early quantile stages but a diminishing impact in later stages. Based on the study's findings, policymakers should prioritize sustainable development strategies to achieve the goal of "carbon neutrality." Implementing green logistics and promoting green investments are essential steps in this direction. Additionally, greater support should be given to the renewable energy sector, green technologies, and sustainable growth to achieve the carbon neutrality goal in China by 2060.


Assuntos
Objetivos , Emissões de Veículos , Condições Sociais , Benchmarking , Carbono , Desenvolvimento Econômico , Energia Renovável , Dióxido de Carbono
9.
Acta Biomater ; 172: 382-394, 2023 12.
Artigo em Inglês | MEDLINE | ID: mdl-37797707

RESUMO

Microwave (MW) thermal therapy has been developed as an effective clinical strategy that can achieve pronounced antitumor activity and also has the potential to trigger antitumor immunity. However, patients generally face high rates of tumor recurrence following MW treatment, limiting the long-term benefits of such treatment. The combination of MW treatment and immunomodulatory strategies may represent a promising means of reprogramming the immunosuppressive tumor microenvironment (TME) in a manner conducive to lower recurrence rates. In this study, a Lenvatinib-loaded Gd/Fe metal-organic framework (Gd/FeMOF) was designed as a promising approach to enhancing such antitumor immunity. MW-enhanced dynamic Gd/FeMOF sensitization can facilitate high levels of reactive oxygen species production under MW irradiation, resulting in stronger immunogenic tumor cell death. In parallel, the Lenvatinib released from Gd/FeMOF preparations can serve as an immune adjuvant that suppresses programmed death ligand 1 (PD-L1) expression and drives the reprogramming of the immunosuppressive TME. The Gd and Fe present within this MOF preparation also imbue it with magnetic resonance imaging capabilities. Importantly, in vivo animal model experiments confirmed the ability of GdFeMOF treatment to significantly enhance antitumor immunity while protecting against recurrence. Accordingly, this study offers a foundation for promising strategies aimed at the integrated diagnosis and durable treatment of cancer. STATEMENT OF SIGNIFICANCE: High rates of tumor recurrence following MW thermal therapy limit the long-term benefits of such treatment. We found that the administration of Lenvatinib-loaded Gd/FeMOF nanoparticles significantly reduced tumor recurrence after MW thermal therapy. Under MW irradiation, the Gd/FeMOF nanoparticles were found to augment the immune response due to facilitation of the process of immunogenic cell death. In addition, the released Lenvatinib could act as an immune adjuvant to downregulate the expression of PD-L1 and reprogram the immunosuppressive state of the tumor microenvironment, thus further enhancing the immune response. This is significant because MW-induced immune responses are relatively weak and usually fail to effectively prevent tumor recurrence. The combination of MW treatment with an immunomodulatory strategy may solve this problem.


Assuntos
Antígeno B7-H1 , Neoplasias , Animais , Humanos , Micro-Ondas , Recidiva Local de Neoplasia , Linhagem Celular Tumoral , Neoplasias/tratamento farmacológico , Neoplasias/metabolismo , Microambiente Tumoral
10.
Fish Shellfish Immunol ; 142: 109098, 2023 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-37758099

RESUMO

The radical S-adenosyl methionine domain-containing protein 2 (RSAD2), also known as viperin, plays a momentous and multifaceted role in antiviral immunity. However, the function of viperin is uninvestigated in golden pompano, Trachinotus ovatus. In the present study, a viperin homolog, named To-viperin, was cloned and characterized from golden pompano, and its role in response to grouper iridovirus (SGIV) and nervous necrosis virus (NNV) infection was investigated. The whole open reading frame (ORF) of To-viperin was composed of 1050 bp and encoded a polypeptide of 349 amino acids with 70.66%-83.51% identity with the known viperin homologs from other fish species. A variable N-terminal domain, a highly conserved C-terminal domain, and a conserved middle radical SAM domain (aa 61-271) with the three-cysteine motif CxxCxxC was found in To-viperin sequence. Expression analysis showed that To-viperin was constitutively expressed in all tested organs and was located mainly in the ER of golden pompano cells. Treatments with SGIV, poly I: C, or NNV could induce the up-regulation of viperin to varying degrees. The ectopic expression of To-viperin in vitro significantly reduced the viral titer of SGIV and NNV. Furthermore, To-viperin overexpression enhanced the expression of IFNc, IRF3, and ISG15 genes as well as, to a lesser extent, the IL-6 gene. In summary, our results suggested that the function of viperin is likely to be conserved in fish specise, as observed in other vertebrates, shedding light on the evolutionary conservation of viperin.


Assuntos
Doenças dos Peixes , Iridovirus , Animais , Proteínas de Peixes/química , Imunidade Inata/genética , Peixes , Filogenia
11.
Front Neurol ; 14: 1187824, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37771453

RESUMO

Objectives: To analyze the differences in laboratory data between patients with myelin oligodendrocyte glycoprotein (MOG) antibody-associated disease (MOGAD), multiple sclerosis (MS) and neuromyelitis optica spectrum disorder (NMOSD). Methods: The study included 26 MOGAD patients who visited Beijing Tiantan Hospital from 2018 to 2021. MS and NMOSD patients who visited the clinic during the same period were selected as controls. Relevant indicators were compared between the MOGAD group and the MS/NMOSD groups, and the diagnostic performance of meaningful markers was assessed. Results: The MOGAD group showed a slight female preponderance of 57.7%, with an average onset age of 29.8 years. The absolute and relative counts of neutrophils were higher in the MOGAD group than in the MS group, while the proportion of lymphocytes was lower. The cerebrospinal fluid (CSF) IgG level, IgG index, 24-h IgG synthesis rate, and positive rate of oligoclonal bands (OCB) were lower in MOGAD patients than in the MS group. The area under ROC curve (AUC) was 0.939 when combining the relative lymphocyte count and IgG index. Compared to the NMOSD group, the MOGAD group had higher levels of serum complement C4 and lower levels of serum IgG. The AUC of serum C4 combined with FT4 was 0.783. Conclusion: Statistically significant markers were observed in the laboratory data of MOGAD patients compared to MS/NMOSD patients. The relative lymphocyte count combined with IgG index had excellent diagnostic efficacy for MOGAD and MS, while serum C4 combined with FT4 had better diagnostic efficacy for MOGAD and NMOSD.

12.
Nurse Educ Today ; 130: 105926, 2023 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-37591112

RESUMO

BACKGROUND: Strategies to improve the teaching effectiveness of nursing research courses are a fundamental objective of contemporary nursing educators. The role practice method is the sum of ways, means, and procedures used to perform role-specific practical learning activities through the adaptation of concepts, models and subjective abilities in an authentic environment. This technique enhances teaching effectiveness by encouraging students to actively participate in practice. OBJECTIVE: The main aim of this study was to explore the effectiveness of the role practice approach within the framework of nursing research courses and provide guidance for subsequent teaching efforts. METHODS: The purposive sampling method was used to recruit 16 students who participated in teaching of the role practice approach and completed all tasks set within the nursing research course in the third year of the undergraduate nursing program of a comprehensive university in south China. Data obtained from semi-structured interviews were analyzed using Colaizzi's seven-step analysis method. RESULTS: Three themes were evaluated, specifically, self-improvement, self-inadequacy and course optimization. CONCLUSION: The role practice method is effective in teaching nursing research courses and can enhance the ability of students to conduct research activities. However, deficiencies in the implementation plan exist that need further revision.


Assuntos
Bacharelado em Enfermagem , Pesquisa em Enfermagem , Estudantes de Enfermagem , Humanos , Exercício Físico , Pesquisa Qualitativa
13.
Eur Radiol ; 33(12): 9213-9222, 2023 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-37410109

RESUMO

OBJECTIVES: To assess the association of ectopic fat deposition in the liver and pancreas quantified by Dixon magnetic resonance imaging (MRI) with insulin sensitivity and ß-cell function in patients with central obesity. MATERIALS AND METHODS: A cross-sectional study of 143 patients with central obesity with normal glucose tolerance (NGT), prediabetes (PreD), and untreated type 2 diabetes mellitus (T2DM) was conducted between December 2019 and March 2022. All participants underwent routine medical history taking, anthropometric measurements, and laboratory tests, including a standard glucose tolerance test to quantify insulin sensitivity and ß-cell function. The fat content in the liver and pancreas was measured with MRI using the six-point Dixon technique. RESULTS: Patients with T2DM and PreD had a higher liver fat fraction (LFF) than those with NGT, while those with T2DM had a higher pancreatic fat fraction (PFF) than those with PreD and NGT. LFF was positively correlated with homeostatic model assessment of insulin resistance (HOMA-IR), while PFF was negatively correlated with homeostatic model assessment of insulin secretion (HOMA-ß). Furthermore, using a structured equation model, we found LFF and PFF to be positively associated with glycosylated hemoglobin via HOMA-IR and HOMA-ß, respectively. CONCLUSIONS: In patients with central obesity, the effects of LFF and PFF on glucose metabolism. were associated with HOMA-IR and HOMA-ß, respectively. Ectopic fat storage in the liver and pancreas quantified by MR Dixon imaging potentially plays a notable role in the onset ofT2DM. CLINICAL RELEVANCE STATEMENT: We highlight the potential role of ectopic fat deposition in the liver and pancreas in the development of type 2 diabetes in patients with central obesity, providing valuable insights into the pathogenesis of the disease and potential targets for intervention. KEY POINTS: • Ectopic fat deposition in the liver and pancreas is associated with T2DM. • T2DM and prediabetes patients had higher liver and pancreatic fat fractions than normal individuals. • The results provide valuable insights into pathogenesis of T2DM and potential targets for intervention.


Assuntos
Diabetes Mellitus Tipo 2 , Resistência à Insulina , Estado Pré-Diabético , Humanos , Resistência à Insulina/fisiologia , Diabetes Mellitus Tipo 2/complicações , Diabetes Mellitus Tipo 2/patologia , Obesidade Abdominal/complicações , Obesidade Abdominal/diagnóstico por imagem , Estudos Transversais , Pâncreas/patologia , Fígado/patologia , Obesidade/complicações , Obesidade/diagnóstico por imagem , Imageamento por Ressonância Magnética/métodos , Glicemia/metabolismo
14.
Anal Bioanal Chem ; 415(8): 1437-1444, 2023 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-36648546

RESUMO

Polybrominated diphenyl ethers (PBDEs) are considered emerging organic contaminants that attract more attention in the environment. Herein, online coupling of solid-phase microextraction and ultrahigh-resolution mass spectrometry was developed for rapid screening of eight PBDEs in water samples. This procedure was completed in 22 min, about 6 times faster than the routine workflow such as solid-phase extraction coupled with gas chromatography-mass spectrometry. Thermal desorption and solvent-assisted atmospheric pressure chemical ionization were developed for the effective coupling of solid-phase microextraction (SPME) with ultrahigh-resolution mass spectrometry (UHRMS), which contributed to the signal enhancement and made the methodology feasible for environmental screening. The limits of detection and quantification were 0.01-0.50 ng/mL and 0.05-4.00 ng/mL, respectively. The recoveries were 57.2-75.2% for quality control samples at spiking levels of 0.8-10 ng/mL (4-50 ng/mL for BDE209), with relative standard deviation less than 19.0%. Twelve water samples from different river sites near industrial areas were screened using the developed method. The results showed that BDE-209 was the dominant PBDE (1.02-1.28 ng/mL in positive samples), but its amount was lower than the human health ambient water quality criteria. Consequently, the developed method provides a rapid and reliable way of evaluating contamination status and risks of PBDEs in aqueous environment.

15.
Entropy (Basel) ; 24(12)2022 Dec 14.
Artigo em Inglês | MEDLINE | ID: mdl-36554229

RESUMO

Existing missile defense target threat assessment methods ignore the target timing and battlefield changes, leading to low assessment accuracy. In order to overcome this problem, a dynamic multi-time fusion target threat assessment method is proposed. In this method, a new interval valued intuitionistic fuzzy weighted averaging operator is proposed to effectively aggregate multi-source uncertain information; an interval-valued intuitionistic fuzzy entropy based on a cosine function (IVIFECF) is designed to determine the target attribute weight; an improved interval-valued intuitionistic fuzzy number distance measurement model is constructed to improve the discrimination of assessment results. Specifically, first of all, we define new interval-valued intuitionistic fuzzy operation rules based on algebraic operations. We use these rules to provide a new model of interval-valued intuitionistic fuzzy weighted arithmetic averaging (IVIFWAA) and geometric averaging (IVIFWGA) operators, and prove a number of algebraic properties of these operators. Then, considering the subjective and objective weights of the incoming target, a comprehensive weight model of target attributes based on IVIFECF is proposed, and the Poisson distribution method is used to solve the time series weights to process multi-time situation information. On this basis, the IVIFWAA and IVIFWGA operators are used to aggregate the decision information from multiple times and multiple decision makers. Finally, based on the improved TOPSIS method, the interval-valued intuitionistic fuzzy numbers are ordered, and the weighted multi-time fusion target threat assessment result is obtained. Simulation results of comparison show that the proposed method can effectively improve the reliability and accuracy of target threat assessment in missile defense.

16.
Cell Biol Int ; 46(12): 2107-2117, 2022 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-36200529

RESUMO

Oxaliplatin (L-OHP) is a standard treatment drug for colorectal cancer (CRC), but acquired drug resistance limits the outcome of patients. We investigated the involvement of sirtuin 1 (SIRT1) in L-OHP resistance in the setting of CRC via microRNA-20b-3p/DEP domain containing 1 (miR-20b-3p/DEPDC1) axis. CRC tissues that were resistant or sensitive to L-OHP were harvested, in which SIRT1, miR-20b-3p, and DEPDC1 levels were tested. L-OHP-resistant-resistant CRC cells were transfected, subsequently, cellular proliferation, invasion, migration, and apoptosis were tested, and tumor resistance to L-OHP was observed. The binding of SIRT1 to miR-20b-3p promoter and the targeting relationship between miR-20b-3p and DEPDC1 were verified. An aberrant elevation in SIRT1 expression was seen in L-OHP-resistant CRC tissues and cells. Knockdown of SIRT1 sensitized CRC cells and xenografted CRC tumors to L-OHP. SIRT1 bound with miR-20b-3p promoter to regulate DEPDC1. Reducing miR-20b-3p or raising DEPDC1 levels weakened the effect of SIRT1 knockdown on L-OHP-resistant-CRC cells. SIRT1 enhances L-OHP resistance in CRC by mediating miR-20b-3p/DEPDC1 axis.


Assuntos
Neoplasias Colorretais , MicroRNAs , Humanos , Oxaliplatina/farmacologia , Sirtuína 1/genética , Sirtuína 1/metabolismo , Resistencia a Medicamentos Antineoplásicos/genética , Regulação Neoplásica da Expressão Gênica , MicroRNAs/genética , MicroRNAs/metabolismo , Linhagem Celular Tumoral , Neoplasias Colorretais/tratamento farmacológico , Neoplasias Colorretais/genética , Neoplasias Colorretais/patologia , Proliferação de Células , Proteínas de Neoplasias/metabolismo , Proteínas Ativadoras de GTPase/metabolismo
17.
Univers Access Inf Soc ; : 1-10, 2022 Oct 13.
Artigo em Inglês | MEDLINE | ID: mdl-36254136

RESUMO

In recent years, an increasing number of studies have addressed the older adults' Information and Communication Technology acceptance, the majority of which concentrate on the use of computers and the internet. As smartphone use becomes further integrated into older adults' daily lives, it is important to investigate how perceptions about and use of smartphones intersect. This study (1) proposes an extended Technology Acceptance Model and tests the relationships between Perceived Usefulness, Perceived Ease of Use, Attitude, Behavioural Intention, Self-efficacy, Technology Anxiety, and Social Support in older adults' smartphone use by confirmatory factor analysis (CFA); and (2) analyses the specific differences between primary, medium, and advanced use level groups in each construct by Q-cluster and ANOVAs. We conduct a community-based survey with a sample of 1,006 older adults in East China. The data demonstrate that the extended model offered a good explanation of smartphone acceptance among the older adults, and the groups belong to different use levels show significant difference in all constructs. The findings indicate that digital divide is objectively inevitable in smartphone use, but the older adults are extremely diverse groups that do not uniformly conform to technology averse stereotypes.

18.
Front Psychol ; 13: 847608, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35959006

RESUMO

As one of the key subjects of multi-center governance of environmental concerns, public perception is crucial in forming and implementing environmental policy. Based on data science research theory and the original theory of public perception, this study proposes a research framework to analyze environmental policy through network text analysis. The primary contents are bidirectional encoder representation from transformers-convolution neural network (BERT-CNN) sentiment tendency analysis, word frequency characteristic analysis, and semantic network analysis. The realism of the suggested framework is demonstrated by using the waste classification policy as an example. The findings indicate a substantial relationship between perceived subject participation and policy pilot areas and that perceived subject participation is repeating. On this premise, specific recommendations are made to encourage policy implementation.

19.
Front Psychol ; 13: 916433, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35923728

RESUMO

Positive psychology (PP) has received increasing attention in the field of education. Therefore, it would be of utmost importance to analyze the relationship between the constructs falling under the category of positive psychology and other constructs to pave the way for both educational authorities and teachers themselves. Reviewing the previous studies, it turned out that there have been no studies to discuss the interplay between teachers' psychological capital and their job commitment and academic optimism particularly in the context of China. To fill this gap, the current study set out to inspect the function of Chinese English as a Foreign language (EFL) teachers' psychological capital in promoting their job commitment and academic optimism. To accomplish this, 316 Chinese teachers (i.e., 97 males, 219 females) were asked to complete "Psychological Capital Scale," "Job Commitment Scale," and "Academic Optimism Scale." The results of regression analyses revealed that Chinese EFL teachers' psychological capital can strongly predict their job commitment and academic optimism. The conclusion and implications of the results are finally discussed and it is mentioned that both educational authorities and teachers can benefit from this study and make the experience of teaching much more productive.

20.
Artigo em Inglês | MEDLINE | ID: mdl-35886108

RESUMO

Worsening environmental problems have created more and more challenges for green development, and the government is often seen as an important guide in turning this situation around. A government generally enacts green development through green development behavior, but previous research has not revealed the mechanism of this behavior. In addition, the multi-agent interaction between the government and green development behavior also needs to be explored. Based on an integrated theoretical model, the authors of this study adopted a meta-analysis method to analyze 18 high-quality published pieces from 6 mainstream databases and described the mechanism of government green development behavior in exploring and thinking about multi-agent interactions. In addition, the authors of this study explored differences in the roles of central and local government green development behaviors and the moderating role of regional heterogeneity. The research results showed that: (1) Enterprise economic behavior, enterprise environmental behavior, enterprise social behavior, and public participation are all significantly positively affected by government green development behavior; (2) local government green development actions have stronger effects than central government actions; (3) regional heterogeneity moderates the effect of government green development behavior. Furthermore, the authors of this study propose relevant countermeasures and suggestions from the government's point of view. This research provides a theoretical and practical reference for governments to better improve their environmental systems and environmental supervision.


Assuntos
Governo , Desenvolvimento Sustentável , China , Participação da Comunidade , Humanos , Governo Local , Modelos Teóricos
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