117 results on '"Ni J"'
Search Results
2. Optimizing preventive maintenance strategies for linear assets
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Ni, J, Lee, J, Mathew, J, Sarangapani, J, Sun, Yong, Fidge, Colin, Ma, Lin, Ni, J, Lee, J, Mathew, J, Sarangapani, J, Sun, Yong, Fidge, Colin, and Ma, Lin
- Abstract
Linear assets are engineering infrastructure, such as pipelines, railway lines, and electricity cables, which span long distances and can be divided into different segments. Optimal management of such assets is critical for asset owners as they normally involve significant capital investment. Currently, Time Based Preventive Maintenance (TBPM) strategies are commonly used in industry to improve the reliability of such assets, as they are easy to implement compared with reliability or risk-based preventive maintenance strategies. Linear assets are normally of large scale and thus their preventive maintenance is costly. Their owners and maintainers are always seeking to optimize their TBPM outcomes in terms of minimizing total expected costs over a long term involving multiple maintenance cycles. These costs include repair costs, preventive maintenance costs, and production losses. A TBPM strategy defines when Preventive Maintenance (PM) starts, how frequently the PM is conducted and which segments of a linear asset are operated on in each PM action. A number of factors such as required minimal mission time, customer satisfaction, human resources, and acceptable risk levels need to be considered when planning such a strategy. However, in current practice, TBPM decisions are often made based on decision makers’ expertise or industrial historical practice, and lack a systematic analysis of the effects of these factors. To address this issue, here we investigate the characteristics of TBPM of linear assets, and develop an effective multiple criteria decision making approach for determining an optimal TBPM strategy. We develop a recursive optimization equation which makes it possible to evaluate the effect of different maintenance options for linear assets, such as the best partitioning of the asset into segments and the maintenance cost per segment.
- Published
- 2014
3. M-ary trees for combinatorial asset management decision problems
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Ni, J, Lee, J, Mathew, J, Sarangapani, J, Chakraborty, Subrata, Fidge, Colin, Ma, Lin, Sun, Yong, Ni, J, Lee, J, Mathew, J, Sarangapani, J, Chakraborty, Subrata, Fidge, Colin, Ma, Lin, and Sun, Yong
- Abstract
A novel m-ary tree based approach is presented to solve asset management decisions which are combinatorial in nature. The approach introduces a new dynamic constraint based control mechanism which is capable of excluding infeasible solutions from the solution space. The approach also provides a solution to the challenges with ordering of assets decisions.
- Published
- 2014
4. Identifying differences in safe roads and crash prone roads using clustering data mining
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Ni, J, Lee, J, Mathew, J, Sarangapani, J, Emerson, Daniel, Nayak, Richi, Weligamage, Justin, Ni, J, Lee, J, Mathew, J, Sarangapani, J, Emerson, Daniel, Nayak, Richi, and Weligamage, Justin
- Abstract
Road asset managers are overwhelmed with a high volume of raw data which they need to process and utilise in supporting their decision making. This paper presents a method that processes road-crash data of a whole road network and exposes hidden value inherent in the data by deploying the clustering data mining method. The goal of the method is to partition the road network into a set of groups (classes) based on common data and characterise the class crash types to produce a crash profiles for each cluster. By comparing similar road classes with differing crash types and rates, insight can be gained into these differences that are caused by the particular characteristics of their roads. These differences can be used as evidence in knowledge development and decision support.
- Published
- 2014
5. Estimating the loading condition of a diesel engine using instantaneous angular speed analysis
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Ni, J, Lee, J, Mathew, J, Sarangapani, J, Lin, Terry, Tan, Andy, Ma, Lin, Mathew, Joseph, Ni, J, Lee, J, Mathew, J, Sarangapani, J, Lin, Terry, Tan, Andy, Ma, Lin, and Mathew, Joseph
- Abstract
Continuing monitoring of diesel engine performance is critical for early detection of fault developments in the engine before they materialize and become a functional failure. Instantaneous crank angular speed (IAS) analysis is one of a few non intrusive condition monitoring techniques that can be utilized for such tasks. In this experimental study, IAS analysis was employed to estimate the loading condition of a 4-stroke 4-cylinder diesel engine in a laboratory condition. It was shown that IAS analysis can provide useful information about engine speed variation caused by the changing piston momentum and crankshaft acceleration during the engine combustion process. It was also found that the major order component of the IAS spectrum directly associated with the engine firing frequency (at twice the mean shaft revolution speed) can be utilized to estimate the engine loading condition regardless of whether the engine is operating at normal running conditions or in a simulated faulty injector case. The amplitude of this order component follows a clear exponential curve as the loading condition changes. A mathematical relationship was established for the estimation of the engine power output based on the amplitude of the major order component of the measured IAS spectrum.
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- 2014
6. Group maintenance scheduling: a case study for a pipeline network
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Ni, J, Lee, J, Mathew, J, Sarangapani, J, Li, Fengfeng, Ma, Lin, Sun, Yong, Mathew, Joseph, Ni, J, Lee, J, Mathew, J, Sarangapani, J, Li, Fengfeng, Ma, Lin, Sun, Yong, and Mathew, Joseph
- Abstract
This paper presents a group maintenance scheduling case study for a water distributed network. This water pipeline network presents the challenge of maintaining aging pipelines with the associated increases in annual maintenance costs. The case study focuses on developing an effective maintenance plan for the water utility. Current replacement planning is difficult as it needs to balance the replacement needs under limited budgets. A Maintenance Grouping Optimization (MGO) model based on a modified genetic algorithm was utilized to develop an optimum group maintenance schedule over a 20-year cycle. The adjacent geographical distribution of pipelines was used as a grouping criterion to control the searching space of the MGO model through a Judgment Matrix. Based on the optimum group maintenance schedule, the total cost was effectively reduced compared with the schedules without grouping maintenance jobs. This optimum result can be used as a guidance to optimize the current maintenance plan for the water utility.
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- 2014
7. A generic split process model for asset management decision-making
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Ni, J, Ma, L, Lee, J, Jinji, G, Mathew, J, Sun, Yong, Fidge, Colin, Ma, Lin, Ni, J, Ma, L, Lee, J, Jinji, G, Mathew, J, Sun, Yong, Fidge, Colin, and Ma, Lin
- Published
- 2009
8. Locomotive maintenance practices based on oil analysis and visual inspections
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Ni, J, Ma, L, Lee, J, Jinji, G, Mathew, J, Liu, Xiaofeng, Johnston, Derek, McLennan, Brett, Ma, Lin, Ni, J, Ma, L, Lee, J, Jinji, G, Mathew, J, Liu, Xiaofeng, Johnston, Derek, McLennan, Brett, and Ma, Lin
- Published
- 2009
9. Technology transfer evaluation in the high technology industry: an interdisciplinary perspective
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Ni, J, Ma, L, Lee, J, Jinji, G, Mathew, J, Samtani, Laxman, Mohannak, Kavoos, Hughes, Stephen, Ni, J, Ma, L, Lee, J, Jinji, G, Mathew, J, Samtani, Laxman, Mohannak, Kavoos, and Hughes, Stephen
- Abstract
The objective of this study is to suggest a novel approach to evaluate the potential for commercialisation of a new technology by developing a framework. More specifically, this study will examine the 'ex-ante' evaluation of the technology transfer process, in this case where the final application falls in the asset management discipline. For this purpose, a case study focusing on a chosen technology stemming from the high technology sector will be used. The technology relates to the application of software for detection of weak signals which is an established method of signal processing in the field of astronomy. This technology has the potential to be used in areas other than astronomy with several possible applications in asset management such as detecting water leakage in pipes amongst others. The applicability to detect water leakage is chosen owing to several problems with detection in the industry as well as the impact it can have in saving water in the environment. This study, therefore, will demonstrate the importance of interdisciplinary and cross-disciplinary technology transfer. The study will employ both technical and business evaluation methods including lab experiments and using the Delphi technique to address the research questions. In conclusion, the chosen technology's commercial potential will be tested through expert opinion thereby focusing on the impact of a new technology and the feasibility of alternate applications and potential future applications.
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- 2009
10. Leveraging engineering asset data: strategic priorities, data types and informational outcomes
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Ni, J, Ma, L, Lee, J, Jinji, G, Mathew, J, Murphy, Glen, Chang, Artemis, Barlow, M, Ni, J, Ma, L, Lee, J, Jinji, G, Mathew, J, Murphy, Glen, Chang, Artemis, and Barlow, M
- Abstract
A common complaint heard within the engineering asset community is that while the capacity for data storage increases, the quality of ever increasing amounts of data remains poor. We propose a new model of engineering asset data management that helps explain why data collected by organizations frequently fails to assist in effective engineering asset management. The model situates a four component typology of engineering data between institutional drivers (e.g. organizational culture; organizational strategy; organizational life-cycle; consequence of asset failure) and asset management outcomes. We argue these outcomes (regulatory compliance; time-based maintenance; condition-based asset management; capacity development) are functions not only of the data collected by an organization, but its capacity to leverage that data. We develop a model suggesting that institutional drivers dictate the data requirements of engineering asset intensive firms, typically at the cost of data requirements for different phases in the asset's life-cycle. This paper will assist practitioners to re-conceptualize the manner in which they view their data, the manner in which it is utilized, and provide a better understanding of data and its intended outcomes. This will allow a better prioritization of data collection activities and offer an improved insight into ways in which engineering data may be better transformed into informational and knowledge outcomes.
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- 2009
11. Best practice engineering asset cultures: a pilot study
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Ni, J, Ma, L, Lee, J, Jinji, G, Mathew, J, Murphy, Glen, Ni, J, Ma, L, Lee, J, Jinji, G, Mathew, J, and Murphy, Glen
- Abstract
engineering and maintenance departments. Those wishing to implement contemporary maintenance regimes (e.g. Condition Based Maintenance) are often encouraged to develop "appropriate cultures" to support the new method's introduction. Unfortunately these same publications often fail to articulate the cultural values required to support the efforts of those behind the implementation. In the broader literature only a limited number of case examples document the cultural values held by engineering asset intensive firms and how they contribute to their success (or failure). Consequently a gap exists in our knowledge of what engineering cultures currently are, and what might constitute a best practice engineering asset culture. We report the findings of a pilot study investigating the perceived ideal characteristics of engineering asset cultures. Engineering managers, consultants and academics (n=47) were surveyed as to what they saw were essential attributes of both engineering cultures and of engineering asset personnel. Valued cultural elements included those orientated around safety and quality and commercial orientations. Valued individual attributes included openness to change, interpersonal skills and contentiousness. The paper concludes with a discussion regarding the development of a best practice cultural framework.
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- 2009
12. Defining the dimensions of engineering asset procurement: towards an integrated model
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Ni, J, Ma, L, Lee, J, Jinji, G, Mathew, J, Furneaux, Craig, Brown, Kerry, Gudmundsson, Amanda, Ni, J, Ma, L, Lee, J, Jinji, G, Mathew, J, Furneaux, Craig, Brown, Kerry, and Gudmundsson, Amanda
- Abstract
Procuring engineering asset management is a critical activity of all types of government, with optimal approaches to procurement still in need of identification. This paper advances a novel approach of exploring the procurement of engineering assets across a number of dimensions: Project rules, organisational interaction rules and complexity. The dimensions of project rules are held to include cost, quality and time. The dimensions of organisational interaction rules are held to be collaboration, competition and control. Complexity is seen as in the project itself, in the interaction between organisations or in the business environment. Taken together these dimensions seem salient for any type of engineering asset, and provide a useful way of conceptualising procurement arrangements of these assets.
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- 2009
13. Radical change within highly technical engineering organisations: the role of social identification
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Ni, J, Ma, L, Lee, J, Jinji, G, Mathew, J, Nguyen, Lynda, Ni, J, Ma, L, Lee, J, Jinji, G, Mathew, J, and Nguyen, Lynda
- Abstract
This paper reports on the initial findings of a longitudinal study exploring the influence of technological and structural change on technical and engineering personnel. Research has found that change of this nature can threaten the belief system, assumptions, and identity of the employee [1]. Despite that, a lack of understanding remains as to how this may impact on the individual [2]. Adopting the psychological construct of social identification [3], this study explores employees' 1) the development of social identity based on the model proposed by Amiot, de la Sablonniere, Terry, & Smith [4] and 2) the ability to identify with the social and organisational group during and post transformation. Using a qualitative approach, a series of focus group and semi-structured interviews were conducted with technical and engineering personnel employed within a nuclear research and production facility. This facility had recently constructed a new plant and the challenges faced by the workforce in adapting to a new facility, technology and structural arrangements provided an excellent opportunity to measure both perceptions of the change and identification. Results from Time 1 measurement shows that technological and structural change disrupted employee's sense of social identity. In addition, employees also showed that such change also had the capacity to decrease their level of identification with the organisation and workgroups. Further, this study demonstrates that although the adoption of new technology and organisational restructuring is the norm within highly technical and engineering workplaces, organisations must consider the humanistic aspects, pre, during and post change, to ensure that employees continue to feel engaged with their work group and organisation.
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- 2009
14. A conceptual data modelling methodology for asset management data warehousing
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Ni, J, Ma, L, Lee, J, Jinji, G, Mathew, J, Mathew, Avin, Ma, Lin, Hargreaves, Doug, Ni, J, Ma, L, Lee, J, Jinji, G, Mathew, J, Mathew, Avin, Ma, Lin, and Hargreaves, Doug
- Abstract
In an attempt to turn data management into a profitable enterprise, many businesses are seeking to integrate and centralise their data through data warehousing. A data warehouse then allows businesses to turn data into knowledge, and turn knowledge into tangible profits. One key success factor of a data warehouse lies in its ability to integrate data from multiple sources through a unified data model. Within asset management, several such integrated data models have been proposed, however these individually only cover a limited number of areas within asset management data and are not designed with data warehousing in mind. This paper presents the development process of a novel conceptual data warehousing data model that holistically integrates numerous asset management data areas. The comprehensive ethnographic modelling methodology involves a diverse set of inputs (including data model patterns, standards, information system data models, and business process models) that describes asset management data. The outputs of the process were verified by more than 20 experts in asset management and validated against four case studies.
- Published
- 2009
15. Identification and segregation of two closely linked major QTLs for kernel row number in advanced maize-teosinte populations.
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Ni J, Tang D, Chen Z, Yang S, Wang X, Liu Z, Deng W, Wu H, You C, Yang J, Meng P, Bao R, Rong T, and Liu J
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- Seeds genetics, Seeds growth & development, Genetic Linkage, Genetic Markers, Crosses, Genetic, Genes, Plant, Zea mays genetics, Zea mays growth & development, Quantitative Trait Loci, Phenotype, Chromosome Mapping methods, Plant Breeding
- Abstract
Key Message: Two closely linked novel loci, qKRN2-1 and qKRN2-2, associated with kernel row number were fine-mapped on chromosome 2, and a key candidate gene for qKRN2-1 was identified through expression analysis. Kernel row number (KRN) is a crucial factor influencing maize yield and serves as a significant target for maize breeding. The use of wild progenitor species can aid in identifying the essential traits for domestication and breeding. In this study, teosinte (MT1) served as the donor parent, the inbred maize line of Mo17 was used as the recurrent parent, we identified a major quantitative trait locus (QTL) for KRN, designated qKRN2, into two closely linked loci, qKRN2-1 and qKRN2-2. Here, fine mapping was performed to investigate two QTLs, qKRN2-1 and qKRN2-2, within a genomic range of 272 kb and 775 kb, respectively. This was achieved using a progeny test strategy in an advanced backcross population, with the two QTLs explaining 33.49% and 35.30% of the phenotypic variance. Molecular marker-assisted selection resulted in the development of two nearly isogenic lines (NILs), qKRN2-1 and qKRN2-2, which differed only in the segment containing the QTL. Notably, the maize (Mo17) alleles increased the KRN relative to teosinte by approximately 1.4 and 1.2 rows for qKRN2-1 and qKRN2-2, respectively. Zm00001d002989 encodes a cytokinin oxidase/dehydrogenase and its expression in the immature ears exhibited significant differences among the qKRN2-1 NILs. In situ hybridization localized Zm00001d002989 to the primordia of the inflorescence meristem and spikelet pair meristems, is predicted to be the causal gene of qKRN2-1. The findings of this study deepen our understanding of the genetic basis of KRN and hold significant potential for improving maize grain yields., Competing Interests: Declarations Conflict of interest The authors declare that they have no conflict of interest. Human and animal rights This study does not include human or animal subjects., (© 2024. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.)
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- 2024
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16. Clinical characteristics and outcomes of cerebral venous sinus thrombosis in patients with antiphospholipid syndrome.
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Xu Z, Huang C, Jiang H, Zhao Y, Zhou Y, Hu C, Han F, Yao M, Ni J, Li M, Zeng X, Zhou L, and Zhao J
- Abstract
Objectives: Cerebral venous sinus thrombosis (CVST) is a rare but serious manifestation of venous thrombosis in patients with antiphospholipid syndrome (APS). This study investigated the risk factors, clinical characteristics and prognosis of CVST in APS patients., Methods: This retrospective cohort study included all thrombotic APS (tAPS) patients from Peking Union Medical College Hospital (PUMCH) from April 2005 to August 2023. Demographic characteristics, laboratory data and thrombotic risk factors were compared between tAPS-CVST group and tAPS-non-CVST group. Kaplan-Meier survival analysis was utilized to compare the recanalization rate and the recurrence rate., Results: A total of 453 APS patients were enrolled, and 40 (8.8%) APS patients were with CVST. The median age of the APS-CVST patients was 27 (21.25, 32.75) years, and 72.5% were females. In 50% of these patients, CVST was the initial symptom of APS, with headache being the most prevalent clinical symptom (95%). Involvement of more than two venous sinuses were observed in 79.5% of patients, with the transverse sinus (79.5%) and sigmoid sinus (74.4%) being the most commonly affected sites. Oral contraceptives, intracranial infections and malignancy were identified as risk factors of APS-CVST. There were no statistically significant differences in baseline characteristics or the distribution of antiphospholipid antibodies profiles between the two groups. After a median follow-up of 24 (12, 52) months, 21 patients (52.5%) experienced recanalization, and 13 patients (32.5%) had a thrombotic recurrence. Survival analysis indicated that adequate anticoagulant therapy significantly contributed to recanalization (HR 6.27, 95% CI 2.616-15.02, P = 0.003), while continuous anticoagulant therapy was highly effective in reducing the recurrence of thrombotic events (HR 0.14, 95% CI 0.0447-0.4328, P = 0.0007)., Conclusion: CVST should be considered in APS patients who experience sudden onset headaches, particularly those with thrombotic risk factors, such as the use of oral contraceptives, intracranial infections and malignancy. Continuous and adequate anticoagulant therapy is pivotal and beneficial for achieving recanalization and prevention of recurrence. Key Points • The prevalence of CVST in patients with APS may be underestimated. • APS-CVST is associated with special risk factors, including pregnancy, intracranial infection, oral contraceptives and tumors. • Long-term and adequate anticoagulation therapy can increase the vascular recanalization rate and reduce thrombosis recurrence., (© 2024. The Author(s), under exclusive licence to International League of Associations for Rheumatology (ILAR).)
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- 2024
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17. B cell deficiency in thymoma tissues of Good's syndrome patients.
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Zhang J, Ni J, Li L, Chen Y, and Liu J
- Abstract
Objectives: Good's syndrome (GS) is a rare secondary immunodeficiency which is characterized by hypogammaglobulinemia and thymoma. This study aims to investigate the expression and distribution of B cells in thymoma tissue, given that B cells had been found to be reduced or absent in peripheral blood or bone marrow., Methods: This study retrospectively analyzed thymoma tissues from 5 GS patients at the First Affiliated Hospital of Wenzhou Medical University and Zhejiang Provincial People's Hospital. Tissues from 20 patients with simple thymoma were used as controls. Immunohistochemistry analyses were performed to detect the markers CD19, CD20, PAX5 and CD138 to evaluate the expression of B cells or plasma cells., Results: Compared to the control group, 4 GS patients exhibited a complete absence of B cells in their thymoma tissue, while 1 GS patient exhibited a notable reduction in B cells. The expression levels of CD19, CD20 and PAX5 in the thymoma tissues of GS patients were dramatically lower than those in the control group (0 vs. 85%, 20 vs. 85%, 20 vs. 85%, respectively; P < 0.05). However, no significant difference was observed in the expression frequency of CD138 between the thymoma tissues of the two groups (0 vs. 30%, P > 0.05)., Conclusion: This is the first report of B cell deficiency in 5 thymoma tissues of GS patients., (© 2024. The Author(s).)
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- 2024
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18. Associations of accelerated biological aging and metabolic heterogeneity of obesity with rheumatoid arthritis: a prospective cohort study.
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Zhao CN, Jiang LQ, Musonye HA, Meng SY, He YS, Wang P, Ni J, and Pan HF
- Abstract
Objective: To evaluate the associations between biological aging, metabolic heterogeneity of obesity, and rheumatoid arthritis (RA)., Methods: This prospective cohort study analyzed 268,184 individuals from the UK Biobank. Biological age was estimated using phenotypic age (PhenoAge), Klemera-Doubal methods (KDM-BA), and telomere length. We calculated KDM-BA acceleration and PhenoAge acceleration after subtracting the effect of chronological age by regression residual. The metabolic heterogeneity of obesity can be evaluated by four BMI metabolic phenotypes, namely metabolically unhealthy normal weight (MUNW), metabolically healthy normal weight (MHNW), metabolically unhealthy overweight/obesity (MUOO), and metabolically healthy overweight/obesity (MHOO). Cox models were employed to estimate the associations between biological aging, metabolic heterogeneity of obesity, and RA risk., Results: A total of 2842 patients experienced RA during a mean follow-up time of 12.21 years. A standard deviation (SD) increase in KDM-BA acceleration and PhenoAge acceleration was associated with an increased risk of RA by 13% (hazard ratio = 1.13; 95% CI, 1.09-1.17) and 39% (HR = 1.39; 95% CI, 1.34-1.44), respectively. A SD increase in telomere length was associated with a reduced risk of RA by 5% (HR = 0.95; 95% CI, 0.91-0.98). Compared to the MHNW group, the MUOO group was associated with a 51% increase in the risk of incident RA. In the joint effect analysis, compared to the MHNW + KDM-BA younger subgroup, the HR (95% CI) for RA was 1.68 (1.48, 1.90) in the MUOO + KDM-BA older subgroup., Conclusion: Accelerated biological aging may heighten the susceptibility to RA, particularly in individuals with obesity or metabolic dysfunction. Key Points •Accelerated biological aging increases the risk of developing RA. •Overweight/obese people with a healthy metabolism have a higher risk of RA than those with normal weight and healthy metabolism. •The BMI metabolic phenotype has a strong modifying effect on the association between KDM-BA/PhenoAge and RA risk., (© 2024. The Author(s), under exclusive licence to International League of Associations for Rheumatology (ILAR).)
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- 2024
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19. Long non-coding RNA Snhg16 Lessens Ozone Curative Effect on Chronic Constriction Injury mice via microRNA-719/SCN1A axis.
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Yue J, Wang Q, Zhao W, Wu B, and Ni J
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- Animals, Mice, Male, Disease Models, Animal, Mice, Inbred C57BL, Gene Expression Regulation drug effects, MicroRNAs genetics, RNA, Long Noncoding genetics, Ozone pharmacology, Neuralgia genetics, Neuralgia drug therapy, Neuralgia metabolism
- Abstract
We investigated the function and molecular mechanism of long non-coding RNA (lncRNA) small nucleolar RNA host gene 16 (Snhg16) in modifying ozone treatment for neuropathic pain (NP) in a mouse model of chronic constriction injury (CCI). Pain-related behavioral responses were evaluated using paw withdrawal threshold (PWT), paw lifting number (PLN), and paw withdrawal latency (PWL) tests. Interleukin (IL)-1β, IL-10, IL-6, and tumor necrosis factor-alpha (TNF-α) were measured by ELISA and qRT-PCR to evaluate neuroinflammation. qRT-PCR was performed to detect expressions of Snhg16, microRNA (miR)-719, sodium voltage-gated channel alpha subunit 1 (SCN1A), and inflammatory factors. Bioinformatics, dual-luciferase reporter assay, and RNA pull-down verified the underlying molecular mechanisms. Snhg16 expression increased in CCI mice. Snhg16 overexpression retarded the curative effect of ozone and induced NP. miR-719 was sponged by Snhg16. SCN1A was a target of miR-719. Inhibition of miR-719 markedly reversed the effects of Snhg16 on pain-related behavioral responses and neuroinflammation. Upregulation of SCN1A partly abrogated the effects of elevated miR-719 levels on the occurrence of NP. The findings demonstrate that lncRNA Snhg16 promotes NP progression in CCI mice by binding to miR-719 to increase SCN1A expression. The Snhg16/miR-719/SCN1A axis may influence the curative effects of ozone therapy in treating NP., (© 2023. The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.)
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- 2024
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20. Nanoparticle Polymeric Micellar Paclitaxel Versus Paclitaxel for Patients with Advanced Gastric Cancer.
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Wang FY, Huang XM, Cao YQ, Cao J, Ni J, Li K, Lu M, and Huang XE
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- Humans, Male, Female, Middle Aged, Retrospective Studies, Aged, Adult, Antineoplastic Combined Chemotherapy Protocols therapeutic use, Antineoplastic Combined Chemotherapy Protocols adverse effects, Antineoplastic Agents, Phytogenic administration & dosage, Antineoplastic Agents, Phytogenic therapeutic use, Antineoplastic Agents, Phytogenic adverse effects, Fluorouracil administration & dosage, Fluorouracil therapeutic use, Treatment Outcome, Leucovorin therapeutic use, Leucovorin administration & dosage, Stomach Neoplasms drug therapy, Stomach Neoplasms pathology, Paclitaxel administration & dosage, Paclitaxel therapeutic use, Paclitaxel adverse effects, Micelles, Nanoparticles administration & dosage
- Abstract
Background: Nanoparticle polymeric micellar paclitaxel (NPMP) is a novel Cremophor EL (CrEL)-free nanoparticle micellar formulation of paclitaxel. This study evaluated the efficacy and toxicity of NPMP in the treatment of patients with advanced gastric cancer (AGC)., Methods: Patients with histologically confirmed AGC in Jiangsu Cancer Hospital were retrospectively collected and divided into two groups. Patients in group A received NPMP at a total dose of 360 mg/m
2 each cycle, and patients in group B were given paclitaxel at a dose of 210 mg/m2 each cycle. In addition, all patients received 5-fluorouracil at a dose of 0.75 g/m2 on days 1-4 and leucovorin at a dose of 200 mg/m2 on days 1-4 for at least 2 cycles., Results: From January 2021 to May 2023, 63 patients (32 in group A and 31 in group B) could be evaluated for treatment response. A marked disparity in the overall response was observed between groups A and B, indicating statistical significance. The overall response rate was 31% in group A (10/32) and 10% in group B (3/31) (P = 0.034). Disease control rate was 91% in group A (29/32) and 81% in group B (25/31) (P = 0.440). No statistically significant difference in adverse reactions was observed between the two groups. However, the incidence of anemia, leucopenia, nausea, vomiting, diarrhea, liver dysfunction, and allergy in group A was notably lower than that in group B., Conclusions: NPMP combined chemotherapy offers a new, active, and safe treatment for patients with AGC., (© 2024. The Author(s).)- Published
- 2024
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21. Short-Term Efficacy of Cerebello-spinal tDCS and Body Weight-Supported Treadmill Training in the Hypertrophic Olivary Degeneration: a Rare Case Report.
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Wang XC, Cai NQ, Cheng XP, Zhang L, Wang WZ, Ni J, and Chen XY
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- Humans, Male, Middle Aged, Exercise Therapy methods, Cerebellum diagnostic imaging, Cerebellum pathology, Neurodegenerative Diseases therapy, Olivary Degeneration, Olivary Nucleus pathology, Olivary Nucleus diagnostic imaging, Transcranial Direct Current Stimulation methods, Hypertrophy
- Abstract
The present case study reported a patient diagnosed with hypertrophic olivary degeneration, a rare condition characterized by a trans-neuronal degeneration and signal enhancement in T2-weighted images on magnetic resonance imaging, usually caused by cerebral hemorrhage, cerebral infarction, and trauma. Furthermore, the relevant literature review was performed. The existing pharmacological treatment has limited clinical benefits on the patient. Since spontaneous remission hardly occurs in the disease, there are no other effective treatments. In this case, the patient was a 55-year-old Chinese male who presented progressive gait difficulty for several months due to both-sided ataxia. Neurological examination revealed upper extremity and lower limb bilateral spasticity, ataxia, slurred speech, and dysmetria. Therefore, our study treated the patient through the inventive application of cerebello-spinal transcranial direct current stimulation and body weight-supported treadmill training. After a 4-week treatment, the patient could walk independently, without aid, speeding up by 7%, as well as the ataxia symptoms, and balance has improved significantly. It was demonstrated in this case report that the combination of cerebello-spinal tDCS and body weight-supported treadmill training can be an effective treatment for patients with Hypertrophic olivary degeneration., (© 2023. The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.)
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- 2024
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22. Transcranial Alternating Current Stimulation in a Patient with Ataxia-Ocular Apraxia 2: a Case Report.
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Cheng XP, Yu WH, Liu X, Lin W, Wang ZD, Wang XC, Ni J, Cai NQ, and Chen XY
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- Humans, Male, Female, Treatment Outcome, Apraxias, Cerebellar Ataxia congenital, Hypoalbuminemia, Transcranial Direct Current Stimulation methods
- Abstract
Ataxia-ocular apraxia 2 (AOA2) is a rare neurodegenerative autosomal recessive disorder with no effective treatment. In this study, we present the case of a patient diagnosed with AOA2, who experienced walking instability and uncoordinated movement. The patient underwent transcranial alternating current stimulation (tACS) treatment for 4 weeks with follow-up after 1 month. The effectiveness of the treatment was evaluated using the International Cooperative Ataxia Rating Scale (ICARS), the Scale for the Assessment and Rating of Ataxia (SARA), the 9-Hole Peg Test (9HPT), and functional near-infrared spectroscopy (fNIRS). Following treatment, the patient's ataxia symptoms showed significant improvement and continued to be alleviated during the follow-up period, suggesting a lasting effect of tACS treatment. Our findings from this case study provide compelling evidence for the potential of tACS as a treatment option for AOA2., (© 2023. The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.)
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- 2024
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23. Dexamethasone relieves the inflammatory response caused by inguinal hernia meshes through miR-155.
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Li Y, Lv Y, Li J, Ling P, Guo X, Zhang L, Ni J, and Long Y
- Subjects
- Animals, Rats, Male, Anti-Inflammatory Agents pharmacology, Rats, Sprague-Dawley, STAT3 Transcription Factor metabolism, STAT3 Transcription Factor genetics, Interleukin-1beta metabolism, Interleukin-1beta genetics, Interleukin-6 metabolism, Interleukin-6 genetics, Caspase 1 metabolism, Caspase 1 genetics, Interleukin-18 metabolism, Herniorrhaphy adverse effects, Herniorrhaphy methods, Random Allocation, MicroRNAs metabolism, Dexamethasone therapeutic use, Dexamethasone pharmacology, Hernia, Inguinal surgery, Surgical Mesh adverse effects, Janus Kinase 1 metabolism, Janus Kinase 1 genetics, Inflammation metabolism
- Abstract
Background: Inguinal hernia is a relatively common condition. Most patients with inguinal hernia require surgery. At present, mesh repair is one of the most effective methods to treat inguinal hernia, but insertion of the mesh can cause inflammation. Dexamethasone (DEX) can treat inflammation, but the mechanism by which DEX alleviates inflammation caused by inguinal hernia mesh placement remains unclear., Method: We randomly divided rats into groups: negative control (NC), inguinal hernia (IH), polypropylene mesh (PM), DEX treatment, and miR-155 treatment groups. RT-qPCR was performed to determine the expression of miR-155. ELISA was implemented to determine the secretion of IL-1β, IL-6, and IL-18. Western blotting was used to detect caspase-1, JAK1, p-JAK1, STAT3, and p-STAT3 expression. A dual-luciferase reporter gene array identified a connection between miR-155 and JAK1., Results: The results revealed that the expression of miR-155, IL-1β, IL-6, and IL-18 was upregulated in the PM group. After DEX treatment, the secretion of miR-155, caspase-1, IL-1β, IL-6, and IL-18 decreased. Dual luciferase results confirmed that miR-155 induced the targeted downregulation of JAK1, while a miR-155 mimic reversed the therapeutic effect of DEX, and the expression levels of p-JAK1 and p-STAT3 increased., Conclusion: DEX regulates the JAK1/STAT3 signaling pathway through miR-155 to relieve inflammation caused by inguinal hernia meshes., (© 2024. The Author(s), under exclusive licence to Springer-Verlag France SAS, part of Springer Nature.)
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- 2024
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24. Tumor Cell-Derived Exosomal miR-191-5p Activates M2-Subtype Macrophages Through SOCS3 to Facilitate Breast Cancer.
- Author
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Ni J, Xi X, Xiao S, and Xiao X
- Subjects
- Humans, Female, Cell Line, Tumor, Gene Expression Regulation, Neoplastic, Cell Movement, Cell Proliferation, Mice, Animals, MicroRNAs genetics, MicroRNAs metabolism, Exosomes metabolism, Exosomes genetics, Breast Neoplasms genetics, Breast Neoplasms pathology, Breast Neoplasms metabolism, Suppressor of Cytokine Signaling 3 Protein metabolism, Suppressor of Cytokine Signaling 3 Protein genetics, Macrophages metabolism, Macrophage Activation genetics
- Abstract
Differential activation of macrophages is associated with poor progression of breast cancer (BC). Many reports have elucidated the important involvement of exosomes produced by cancer cells in remodeling the macrophage activation phenotype to promote tumor expansion and invasion. However, the underlying mechanisms by which exosomes secreted by BC cells facilitate macrophage M2 polarization remain enigmatic and worth exploring. In this study, quantitative real-time PCR (RT-qPCR) was used to investigate miR-191-5p expression in BC tumor tissues and cells. Cell counting kit 8 (CCK-8), transwell, and flow cytometry were applied to assess the functional role of miR-191-5p in BC. Isolated nano-vesicles were identified using transmission electron microscopy and western blotting. We also observed that miR-191-5p was significantly elevated in BC clinical samples and that inhibition of miR-191-5p hindered the growth and metastasis of BC cells. Importantly, BC cells successfully accelerated macrophage M2-like polarization by directly transferring exosomes to macrophages, resulting in increased miR-191-5p levels in macrophages. Mechanistically, exosomal miR-191-5p directly inhibited the suppressors of cytokine signaling 3 (SOCS3) expression in macrophages and aggravated macrophage M2 polarization. Similarly, si-SOCS3 transfected macrophages boosted BC cell migration and invasion in a positive feedback manner. Overall, our results manifested a pro-growth and pro-metastatic role between the two cells by elucidating the crucial role of exosomal miR-191-5p in stimulating M2 macrophage polarization and mediating communication between BC cells and macrophages. These findings opened up new horizons for the development of BC therapeutic strategies., (© 2024. The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.)
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- 2024
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25. Changes in physiology, antioxidant system, and gene expression in Microcystis aeruginosa under fenoxaprop-p-ethyl stress.
- Author
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Liu S, Ni J, Guan Y, Tao J, Wu L, Hou M, Wu S, Xu W, Zhang C, and Ye J
- Subjects
- Antioxidants metabolism, Oxidative Stress drug effects, Propionates, Gene Expression drug effects, Microcystins, Microcystis drug effects, Herbicides toxicity, Marine Toxins, Oxazoles
- Abstract
Fenoxaprop-p-ethyl (FE) is one of the typical aryloxyphenoxypropionate herbicides. FE has been widely applied in agriculture in recent years. Human health and aquatic ecosystems are threatened by the cyanobacteria blooms caused by Microcystis aeruginosa, which is one of the most common cyanobacteria responsible for freshwater blooming. Few studies have been reported on the physiological effects of FE on M. aeruginosa. This study analyzed the growth curves, the contents of chlorophyll a and protein, the oxidative stress, and the microcystin-LR (MC-LR) levels of M. aeruginosa exposed to various FE concentrations (i.e., 0, 0.5, 1, 2, and 5 mg/L). FE was observed to stimulate the cell density, chlorophyll a content, and protein content of M. aeruginosa at 0.5- and 1-mg/L FE concentrations but inhibit them at 2 and 5 mg/L FE concentrations. The superoxide dismutase and catalase activities were enhanced and the malondialdehyde concentration was increased by FE. The intracellular (intra-) and extracellular (extra-) MC-LR contents were also affected by FE. The expression levels of photosynthesis-related genes psbD1, psaB, and rbcL varied in response to FE exposure. Moreover, the expressions of microcystin synthase-related genes mcyA and mcyD and microcystin transportation-related gene mcyH were significantly inhibited by the treatment with 2 and 5 mg/L FE concentrations. These results might be helpful in evaluating the ecotoxicity of FE and guiding the rational application of herbicides in modern agriculture., (© 2024. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.)
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- 2024
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26. Fine mapping and candidate gene analysis of qSRC3 controlling the silk color in maize (Zea mays L.).
- Author
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Wang X, Zhou Y, You C, Yang J, Chen Z, Tang D, Ni J, Li P, Wang L, Zhu K, Deng W, Wu H, Bao R, Liu Z, Meng P, Yang S, Rong T, and Liu J
- Subjects
- Chromosome Mapping methods, Transcription Factors genetics, Genetic Association Studies, Zea mays genetics, Anthocyanins
- Abstract
Key Message: Fine mapping of the maize QTL qSRC3, responsible for red silk, uncovered the candidate gene ZmMYB20, which encodes an R2R3-MYB transcription factor, has light-sensitive expression, and putatively regulates genes expression associated with anthocyanin biosynthesis. Colorless silk is a key characteristic contributing to the visual quality of fresh corn intended for market distribution. Nonetheless, the identification of Mendelian trait loci and associated genes that control silk color has been scarce. In this study, a F
2 population arising from the hybridization of the single-segment substitution line qSRC3MT1 with red silk, carrying an introgressed allele from teosinte (Zea mays ssp. mexicana), and the recurrent maize inbred line Mo17, characterized by light green silk, was utilized for fine mapping. We found that the red silk trait is controlled by a semi-dominant genetic locus known as qSRC3, and its expression is susceptible to light-mediated inhibition. Moreover, qSRC3 explained 68.78% of the phenotypic variance and was delimited to a 133.2 kb region, which includes three genes. Subsequent expression analyses revealed that ZmMYB20 (Zm00001d039700), which encodes an R2R3-MYB transcription factor, was the key candidate gene within qSRC3. Yeast one-hybrid and dual-luciferase reporter assays provided evidence that ZmMYB20 suppresses the expression of two crucial anthocyanin biosynthesis genes, namely ZmF3H and ZmUFGT, by directly binding to their respective promoter regions. Our findings underscore the significance of light-inhibited ZmMYB20 in orchestrating the spatial and temporal regulation of anthocyanin biosynthesis. These results advance the production of colorless silk in fresh corn, responding to the misconception that fresh corn with withered colored silk is not fresh and providing valuable genetic resources for the improvement of sweet and waxy maize., (© 2024. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.)- Published
- 2024
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27. Spatiotemporal patterns of surface ozone exposure inequality in China.
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Li B, Ni J, Liu J, Zhao Y, Liu L, Jin J, and He C
- Subjects
- Middle Aged, Humans, Environmental Exposure analysis, Environmental Monitoring, China, Particulate Matter, Air Pollutants analysis, Air Pollution analysis, Ozone analysis
- Abstract
Rising surface ozone (O
3 ) levels in China are increasingly emphasizing the potential threats to public health, ecological balance, and economic sustainability. Using a 1 km × 1 km dataset of O3 concentrations, this research employs subpopulation demographic data combined with a population-weighted quality model. Its aim is to evaluate quantitatively the differences in O3 exposure among various subpopulations within China, both at a provincial and urban cluster level. Additionally, an exposure disparity indicator was devised to establish unambiguous exposure risks among significant urban agglomerations at varying O3 concentration levels. The findings reveal that as of 2018, the population-weighted average concentration of O3 for all subgroups has experienced a significant uptick, surpassing the average O3 concentration (118 μg/m3 ). Notably, the middle-aged demographic exhibited the highest O3 exposure level at 135.7 μg/m3 , which is significantly elevated compared to other age brackets. Concurrently, there exists a prominent positive correlation between educational attainment and O3 exposure levels, with the medium-income bracket showing the greatest susceptibility to O3 exposure risks. From an industrial vantage point, the secondary sector demographic is the most adversely impacted by O3 exposure. In terms of urban-rural structure, urban groups in all regions had higher levels of exposure to O3 than rural areas, with North and East China having the most significant levels of exposure. These findings not only emphasize the intricate interplay between public health and environmental justice but further highlight the indispensability of segmented subgroup strategies in environmental health risk assessment. Moreover, this research furnishes invaluable scientific groundwork for crafting targeted public health interventions and sustainable air quality management policies., (© 2024. The Author(s), under exclusive licence to Springer Nature Switzerland AG.)- Published
- 2024
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28. CuS/Bi 2 O 3 composites activating PMS under visible light for efficient degradation of antibiotic tetracycline.
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Huang Z, Ni J, Ding N, and Liu H
- Subjects
- Tetracycline chemistry, Light, Anti-Bacterial Agents, Wastewater, Peroxides
- Abstract
CuS/Bi
2 O3 composite photocatalyst was prepared by calcination and in situ precipitation, and peroxymonosulfate (PMS) was applied to the degradation of tetracycline (TC) wastewater under visible light. The microscopic morphology, chemical composition, and optical properties of the composites were investigated by characterization means of XRD, FTIR, SEM, XPS, and UV-Vis DRS. The results showed that the introduction of CuS increased the specific surface area of Bi2 O3 and increased the visible absorption boundary of Bi2 O3 from 455 to 524 nm, which effectively inhibited the complexation of photogenerated electron-hole pairs. The experimental results showed that the introduction of PMS strengthened the removal of TC from the composites, and 95% of TC could be removed under visible light irradiation, and the reaction rate was 8.22 times higher than that of the unspiked PMS, indicating that the BC-15+vis/PMS catalytic system could degrade the pollutants efficiently. The radical capture experiments showed that several radicals, including ·OH, SO4 ·- , ·O2 - , h+ , and1 O2 , were present in the catalytic system as the main active species to degrade TC, and the mechanism of photocatalytic activation of PMS by Z-type heterostructures of CuS/Bi2 O3 composites was proposed. The present study showed that BC-15 has excellent degradation performance and stability, which provides new ideas for the treatment of antibiotic wastewater., (© 2024. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.)- Published
- 2024
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29. HNRNPA2B1-mediated m6A modification of FOXM1 promotes drug resistance and inhibits ferroptosis in endometrial cancer via regulation of LCN2.
- Author
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Jiang J, Zhu J, Qiu P, Ni J, Zhu W, and Wang X
- Subjects
- Humans, Female, Cell Line, Tumor, Reactive Oxygen Species, Cell Proliferation genetics, Drug Resistance, Neoplasm genetics, RNA, RNA, Messenger, Lipocalin-2 pharmacology, Forkhead Box Protein M1 genetics, Forkhead Box Protein M1 pharmacology, Ferroptosis genetics, Endometrial Neoplasms genetics
- Abstract
N6-methyladenosine (m6A) methylation is an extensive posttranscriptional RNA modification, and it is associated with various cellular responses, especially in tumor progression. An m6A "reader"-HNRNPA2B1 has been found oncogenic in multiple malignancies. As a key proliferation-related transcription factor, forkhead box protein M1 (FOXM1) is involved in tumorigenesis. Here, we elucidated the underlying mechanism by which HNRNPA2B1-mediated modification of FOXM1 promotes endometrial cancer (EC). The GSE115810 dataset was used to analyze the upregulated gene mRNA in late-stage EC tissues. The expression levels of HNRNPA2B1, FOXM1, and LCN2 in EC samples were shown by western blotting and qPCR. The interaction among HNRNPA2B1, FOXM1, and LCN2 in EC cells was detected using bioinformatics analysis, RNA immunoprecipitation (RIP), RNA pull-down, RNA decay analysis, and luciferase reporter experiments. Cisplatin (DDP)-resistant EC cells were constructed using HEC-1-A and HEC-1-B cells, named HEC-1-A/DDP and HEC-1-B/DDP, respectively. Proliferation, migration, and invasiveness in treated HEC-1-A/DDP and HEC-1-B/DDP cells were detected by EdU, wound healing, and transwell assays. Ferroptosis-resistant gene expression, MDA level, and ROS level were measured. The m6A modification level in EC tissues was elevated. HNRNPA2B1 and FOXM1 levels were upregulated in EC. HNRNPA2B1 expression was positively related to FOXM1 expression in EC samples, and HNRNPA2B1 bound to the 3'UTR of FOXM1 and stabilized FOXM1 mRNA via m6A modification. FOXM1 positively regulated LCN2 expression in EC cells by binding to the LCN2 promotor. Knockdown of FOXM1 downregulated ferroptosis-resistant gene expression and increased MDA and ROS levels in DDP-resistant EC cells. Rescue assays revealed that LCN2 overexpression eliminated the effects mediated by FOXM1 knockdown on the proliferation, migration, invasiveness, and ferroptosis in DDP-resistant EC cells. In conclusion, HNRNPA2B1-mediated mA modification of FOXM1 facilitates drug resistance and inhibits ferroptosis in EC cells by upregulating LCN2 expression., (© 2023. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.)
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- 2023
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30. Effect of doping and defects on the optoelectronic properties of ZrSe 2 based on the first principle.
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Sun S, Yang L, Bao J, Zhao Y, Wei X, Liu H, Ni J, and Tang X
- Abstract
Context: Based on the first principles under the framework of density functional theory, it calculates the effect of vacancy defects in single Zr and single Se atoms and the replacement of Se atoms in ZrSe
2 with O, Se, and Te atoms on the optoelectronic properties of monolayer ZrSe2 , including geometry, energy band structure, electronic density of states, and optical properties. The doping of the three non-metallic atoms was n-type doping for the O and S atoms and p-type doping for the Te atom. Defects in the Zr atoms and O-atom doping significantly affect the peak reflectance and absorption coefficient of the ZrSe2 system., Methods: All Density Functional Theory calculations were carried out using the CASTEP module in the Materials-Studio (MS) software. The generalized gradient approximation plane-wave pseudopotential method and the Perdew-Burke-Ernzerfhof (PBE) generalized function were used for structural optimization and total energy calculation of the defect and doping systems. After convergence tests, the plane wave truncation energy was set to 500 eV, and the Brillouin zone K-point grid was set to 4 × 4 × 1. The atomic energy convergence criterion is 1.0 × 10-6 eV/atom, the interatomic interaction force convergence criterion is 0.02 eV/Å, the maximum atomic displacement convergence criterion is 0.001 Å, and the internal crystal stress convergence criterion is 0.05 GPa. In order to avoid the influence of the interaction forces between the layers, a vacuum layer of 15 Å is placed in the Z-axis direction., (© 2023. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.)- Published
- 2023
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31. Torsional deformation modulation of the electronic structure and optical properties of molybdenum ditelluride systems doped with halogen atoms X (X = F, Cl, Br, I): a first-principles study.
- Author
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Dai Y, Liu G, He J, Ni J, and Zhang G
- Abstract
Context: Using a first-principles plane-wave pseudopotential technique within the context of density-functional theory, the electronic structure and optical properties of the molybdenum ditelluride system doped with halogen atoms X (X = F, Cl, Br, I) were investigated. The electronic structure, density of states, charge transfer, and optical properties of halogen atom X doped on MoTe
2 monolayer are systematically calculated and analyzed. It shows that the Fermi energy level is shifted upward after doping with halogen atoms. With F-MoTe2 doping, the geometrical distortion is the most pronounced, the charge transfer number is the highest, and the semiconductor shifts from a direct band gap to an indirect band gap. When the torsional deformation is between 1° and 5°, the F-doped MoTe2 system stays an indirect band gap semiconductor and transitions to quasi-metal at 6°. It is shown that the torsional deformation can modulate the electronic properties of the doped structure and realize the semiconductor-metal transition., Optical Properties: The F-doped system has a strong absorption peak reflection peak after torsion, and with the increase of torsion angle, the absorption peak is red-shifted, and the reflection peak is blue-shifted. Moreover, the absorption and reflection peaks start to decrease with the rise of the torsion angle., Methods: We apply the generalized gradient approximation plane-wave pseudopotential technique based on Perdew-Burke-Ernzerhof (PBE) generalized functions, under the first principles of the density-functional theory framework. The overall optimization of the intrinsic molybdenum ditelluride structure and the halogen atom X-doped molybdenum ditelluride structure was carried out. Then, the F-doped molybdenum ditelluride system was selected for torsional deformation with torsion angles from 1° to 6° for computational analysis., Specific Method: To make the presentation more accessible, the atoms in the F-doped molybdenum ditelluride system were colored differently. The pink chain edge atoms were first reversed by θ°. Then, the blue chain edge atoms were reversed by θ° in the other direction. The middle row of atoms was adjusted accordingly to the different twisting angles of the two sides by doing the corresponding torsion with the torsion angle θ°/2 and fixing the individual atoms. The calculation employs the Monkhorst-Pack particular K-point sampling method. The 3 × 3 × 1 inverted-space K-point grid is utilized for material structure optimization calculations in each model, and the 9 × 9 × 1 K-point grid is used for material electronic structure calculations. A 15 Å vacuum layer is put on the crystal surface of vertical monolayer molybdenum ditelluride supercells to avoid interactions with adjoining cells., (© 2023. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.)- Published
- 2023
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32. Electronic and optical structural manipulation of NbS 2 defects under strain: first-principles calculations.
- Author
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Ni J, Yang L, and Bao J
- Abstract
Context: Monolayer NbS
2 is a promising new two-dimensional material, and it is critical to develop effective methods to make NbS2 a material for nanodevices and photovoltaic applications. This study studied the strain rule of sulfur-deficient NbS2 structure by first principles. The results show that all defect structures introduce impurity states to enhance electron transport. The disulfide defect structure produces an indirect band gap under the action of tensile strain, which can reach up to 0.56eV and become a diluted semiconductor. The hybrid NbS2 exhibits high transparency under infrared, visible, and low-frequency ultraviolet light, improving the material's transmittance, optical response, and catalytic activity. The research results of this paper will provide a basis for the subsequent research of single-layer NbS2 and accelerate the research process of NbS2 as a new semiconductor material., Methods: We are on the surface perpendicular to the 3×3×1 NbS2 and use a 15 Å vacuum layer to avoid interacting with periodic images. The first-principles simulation uses the CASTEP module in Materials Studio to simulate the hypothetical model and relaxation optimization structure of single-layer NbS2 under strain and defect state. The calculation function is PBE (Perdew-Burke-Ernzerhof) function under the generalized gradient approximation (GGA) for an approximate calculation to describe the interaction between electrons and the interaction between electrons and ions. The pseudopotentials of 3s2 3p4 and 4d4 5s1 valence electron configurations were used for S and Nb atoms, respectively. Van der Waals correction is considered in the simulation process. Moreover, it includes spin-orbit coupling (SOC) effects. For the plane wave truncation energy, we set it at 500eV. The arrangement of the Brillouin area is divided by 6×6×1 gamma-centered Monkhorst-Pack grids. The lattice deformation of all hybrid structures is less than 0.05 Gpa, and the interatomic force is less than 0.03 eV/Å., (© 2023. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.)- Published
- 2023
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33. Caution against simultaneous integrated boost radiotherapy for upper thoracic esophageal squamous cell carcinoma: results from a single-arm phase II trial.
- Author
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Zhou Y, Chu L, Lu S, Chu X, Ni J, Li Y, Guo T, Yang X, and Zhu Z
- Subjects
- Humans, Radiotherapy Dosage, Cisplatin, Esophageal Squamous Cell Carcinoma drug therapy, Esophageal Squamous Cell Carcinoma radiotherapy, Esophageal Neoplasms drug therapy, Esophageal Neoplasms radiotherapy, Esophageal Neoplasms pathology, Radiotherapy, Intensity-Modulated methods, Radiation Injuries epidemiology, Radiation Injuries etiology
- Abstract
Purpose: To explore the feasibility and safety of simultaneous integrated boost technology (SIB) with elective nodal irradiation (ENI) to the cervical and upper mediastinal lymph node (LN) regions in upper thoracic esophageal squamous cell carcinoma (ESCC)., Material and Methods: Patients with pathologically proven unresectable upper thoracic ESCC were assigned 50.4 Gy/28 fractions (F) to the clinical target volume (encompassing the ENI area of cervical and upper mediastinal LN regions) and a boost of 63 Gy/28 F to the gross tumor volume. Chemotherapy consisted of courses of concurrent cisplatin (20 mg/m
2 ) and docetaxel (20 mg/m2 ) weekly for 6 weeks. The primary endpoint was toxicity., Results: Between Jan 2017 and Dec 2019, 28 patients were included. The median follow-up time for all patients was 24.6 months (range 1.9-53.5). Radiation-related acute toxicity included esophagitis, pneumonia and radiodermatitis, all of which were well managed and reversed. Late morbidity included esophageal ulcer, stenosis, fistula and pulmonary fibrosis. Grade III esophageal stenosis and fistula was seen in 11% (3/28) and 14% (4/28) patients, respectively. The cumulative incidence rate of late esophageal toxicity was 7.7%, 19.2% and 24.6% at 6, 12 and 18 months, respectively. There was significant difference of the occurrence of severe late esophageal toxicity among the different volume levels of the esophagus, and cervical and upper mediastinal LNs which received ≥ 63 Gy stratified by the tertiles (p = 0.014)., Conclusions: Despite the acceptably tolerated acute toxicity of SIB in concurrent CRT with ENI to the cervical and upper mediastinal LN regions for upper thoracic ESCC, the incidence of severe late esophageal toxicity was relatively high. Cautions are provided against easy clinical application of SIB (50.4 Gy/28F to the CTV, 63 Gy/28F to the GTV) in upper thoracic ESCC. Further exploration on dose optimization is warranted., (© 2023. The Author(s) under exclusive licence to The Japan Esophageal Society.)- Published
- 2023
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34. Global trends and future prospects of acid mine drainage research.
- Author
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Zhang M, Huang C, Ni J, and Yue S
- Subjects
- Mining, Acids, Bibliometrics, Ecosystem, Metals, Heavy
- Abstract
The uncontrolled release of acid mine drainage (AMD) results in the ongoing deterioration of groundwater and surface water, along with harmful impacts on aquatic ecosystems and surrounding habitats. This study employed a bibliometric analysis to examine research activities and trends related to AMD from 1991 to 2021. The analysis demonstrated a consistent growth in AMD research over the years, with a notable surge in the number of publications starting from 2014. Applied Geochemistry and Science of the Total Environment emerged as the top two extensively published journals in the field of AMD research. The USA held a prominent position, achieving the highest h-index (96) and central value (0.36) among 111 countries/territories, with China and Spain following closely behind. The author keyword analysis provides an overview of the main focuses in AMD research. Furthermore, the co-citation reference analysis reveals four primary domains of AMD research. Moreover, the prevention and remediation of AMD, including source prevention and migration control, as well as the hazards posed by heavy metals/metalloids and the mechanisms and techniques employed for their removal, are discussed in detail., (© 2023. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.)
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- 2023
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35. Impact of short-term exposure to ambient air pollution on osteoarthritis: a multi-city time-series analysis in Central-Eastern China.
- Author
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He YS, Wu ZD, Wang GH, Wang X, Mei YJ, Sui C, Tao SS, Zhao CN, Wang P, Ni J, and Pan HF
- Subjects
- Female, Humans, Male, Particulate Matter analysis, China epidemiology, Gases analysis, Nitrogen Dioxide analysis, Air Pollution analysis, Air Pollutants analysis, Environmental Pollutants analysis
- Abstract
Osteoarthritis (OA) is a threat to public health issue with high morbidity and disability worldwide. However, unequivocal evidence on the link between air pollution and OA remains little, especially in multi-study sites. This study aimed to explore the relationship between short-term exposure to main air pollutants and the risk of OA outpatient visits in multi-study sites. A multi-city time-series analysis was performed in Anhui Province, Central-Eastern China from January 1, 2015, to December 31, 2020. We used a two-stage analysis to assess the association between air pollution and daily OA outpatient visits. City-specific associations were estimated with a distributed lag nonlinear model and then pooled by random-effects or fixed-effects meta-analysis. Stratified analysis was conducted by gender, age, and season. Additionally, the disease burden of OA attributable to air pollutant exposure was calculated. A total of 35,700 OA outpatients were included during the study period. The pooled exposure-response curves showed that PM
2.5 and PM10 concentrations below the reference values could increase the risk of OA outpatient visits. Concretely, per 10 ug/m3 increase in PM2.5 concentration was linked to an elevated risk of OA outpatient visits at lag 2 and lag 3 days, where the effect reached its highest value on lag 2 day (RR: 1.023, 95%CI: 1.005-1.041). We observed that a 10 μg/m3 increase in PM10 was positively correlated with OA outpatient visits (lag2 day, RR: 1.011, 95%CI: 1.001-1.025). Nevertheless, no statistical significance was discovered in gaseous pollutants (including SO2 , O3 , and CO). Additionally, a significant difference was found between cold and warm seasons, but not between different genders or age groups. This study reveals that particulate matter is an important factor for the onset of OA in Anhui Province, China. However, there is no evidence of a relationship of gaseous pollutants with OA in this area., (© 2023. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.)- Published
- 2023
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36. Spatial scale effects of integrated landscape indicators on river water quality in Chaohu Lake basin, China.
- Author
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Wang H, Wang J, Ni J, Cui Y, and Yan S
- Subjects
- China, Water Pollutants, Chemical analysis, Phosphorus analysis, Seasons, Climate Change, Water Pollution, Rivers chemistry, Water Quality, Environmental Monitoring, Lakes chemistry
- Abstract
Climate change and rapid urbanization have changed the characteristics of basin landscapes. Non-point-source (NPS) pollution affects river water quality. Exploring the impact of landscapes on river water quality is crucial for the control of water pollution in a basin. Current researchers focus on the impact of landscape pattern change on NPS pollution in the basin, but few consider climate, terrain, soil, and other geographical factors. In this study, we selected a subtropical agricultural basin in China named Chaohu Lake basin as the study area, added precipitation, soil erosion resistance, and slope to the original landscape pattern indicators. We quantified the spatial scale effect and seasonal dependence of integrated landscape indicators on water quality and comprehensively analyzed the optimal spatial scale and key landscape indicators. According to the nonlinear relationship between the key landscape indicators and river nutrients, we also determined the Type-1 threshold values of key landscape indicators for water quality protection in the basin. The results showed that the rivers in Chaohu Lake basin were mainly polluted by nitrogen and phosphorus. The strength of interpretation of the integrated landscape indicators of river water quality increased with riparian zone width. We determined the subbasin scale to be the optimal spatial scale. The key landscape indicators affecting water quality in the wet season at the optimal scale were precipitation and aggregation index of construction land (AI
bul ), whereas those in the dry season were AIbul and COHESION. The interpretation of the key landscape indicators in the wet season was slightly higher than that in the dry season. The above conclusions provide a scientific reference for NPS pollution control and water quality protection in subtropical agricultural basins., (© 2023. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.)- Published
- 2023
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37. Associations of exposure to heavy metal mixtures with kidney stone among U.S. adults: A cross-sectional study.
- Author
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Zhao H, Fang L, Chen Y, Ma Y, Xu S, Ni J, Chen X, Wang G, and Pan F
- Subjects
- Humans, Adult, Aged, Nutrition Surveys, Cross-Sectional Studies, Cadmium, Bayes Theorem, Metals, Heavy urine, Kidney Calculi chemically induced, Kidney Calculi epidemiology
- Abstract
Assessing the effects of heavy metals (HMs) on kidney stone is often limited to analyzing individual metal exposures, with studies on the effects of exposure to mixtures of HMs being scarce. To comprehensively evaluate the relationship between exposure to mixed HMs and kidney stones, we analyzed data from the National Health and Nutrition Examination Survey (NHANES) from 2007-2016, which included 7809 adults. We used multiple statistical methods, including multiple logistic regression models, weighted quantile sum (WQS) regression, quantile g-computation (qgcomp) and bayesian kernel machine regression (BKMR), to assess the association between single HM and mixed exposure to HMs and kidney stones. Firstly, in single exposure analysis, urinary cadmium (Cd) and cobalt (Co) demonstrated a positive association with the risk of kidney stones. Secondly, various other approaches consistently revealed that mixed exposure to HMs exhibited a positive association with kidney stone risk, primarily driven by Cd, Co, and barium (Ba) in urine, with these associations being particularly notable among the elderly population. Finally, both BKMR and survey-weighted generalized linear models consistently demonstrated a significant synergistic effect between urinary Co and urinary uranium (Ur) in elevating the risk of kidney stones. Overall, this study provides new epidemiological evidence that mixed exposure to HMs is associated with an increased risk of kidney stones. Further prospectively designed studies are needed to confirm these findings., (© 2023. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.)
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- 2023
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38. Photoelectric structure and magnetic changes caused by niobium disulfide adsorbing (non)-metal atoms under defects.
- Author
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Ni J and Yang L
- Abstract
Context: The property transition between metal and semiconductor is the key to improving the properties of transition metal dichalcogenides (TMDCs). The adsorption of the NbS
2 compound in the defect state was adjusted for the first time. The hybrid system overwrites the original surface mechanism of NbS2 and induces indirect band gaps. This modulation mode makes NbS2 convert into a semiconductor and effectively improves the catalytic activity of the material in the system. In addition, the original local magnetic moment of the compound is concentrated in the vacancy region and is improved. The optical properties of the adsorption system indicate that NbS2 compounds can be effectively applied in visible and low-frequency ultraviolet regions. This provides a new idea for the design of the NbS2 compound as a two-dimensional photoelectric material., Methods: In the study, we assume that only one atom is adsorbed on the NbS2 supercell of the defect, and the distance between the two adjacent atoms exceeds 12.74 Å, so the interaction between atoms is ignored in the study. Adsorbed atoms include nonmetallic elements (H, B, C, N, O, F), metallic elements (Fe, Co), and noble metal elements (Pt, Au, Ag). The density functional theory (DFT) was used in the experiment. The non-conservative pseudopotential method was used in the calculation to optimize the crystal structure geometrically. The approximate functional is Heyd-Scuseria-Ernzerhof (HSE06). The calculation method includes the spin-orbit coupling (SOC) effect. The crystal relaxation optimization uses a 7 × 7 × 1 k point grid to calculate niobium disulfide's photoelectric and magnetic properties. A vacuum space of 15Å is introduced in the direction outside the plane, and the free boundary condition is adopted to avoid the interaction between atomic layers. For the convergence parameter setting, the interatomic force of all composite systems is less than 0.03 eV/Å, and the lattice stress is less than 0.05 Gpa., (© 2023. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.)- Published
- 2023
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39. In silico identification of novel stilbenes analogs for potential multi-targeted drugs against Alzheimer's disease.
- Author
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Firdoos S, Dai R, Tahir RA, Khan ZY, Li H, Zhang J, Ni J, Quan Z, and Qing H
- Subjects
- Humans, Aged, Acetylcholinesterase, Antioxidants pharmacology, Molecular Docking Simulation, Butyrylcholinesterase, Alzheimer Disease drug therapy
- Abstract
Context: Alzheimer's disease (AD) is a chronic progressive neurodegenerative syndrome, which adversely disturbs cognitive abilities as well as intellectual processes and frequently occurs in the elderly. Inhibition of cholinesterase is a valuable approach to upsurge acetylcholine concentrations in the brain and persuades the development of multi-targeted ligands against cholinesterases., Methods: The current study aims to determine the binding potential accompanied by antioxidant and anti-inflammatory activities of stilbenes-designed analogs against both cholinesterases (Acetylcholinesterase and butyrylcholinesterase) and neurotrophin targets for effective AD therapeutics. Docking results have shown that the WS6 compound exhibited the least binding energy - 10.1 kcal/mol with Acetylcholinesterase and - 7.8 kcal/mol with butyrylcholinesterase. The WS6 also showed a better binding potential with neurotrophin targets that are Brain-derived Neurotrophic Factor, Neurotrophin 4, Nerve Growth Factor, and Neurotrophin 3. The tested compounds particularly WS6 revealed significant antioxidant and anti-inflammatory activities through the comparative docking analysis with Fluorouracil and Melatonin as control drugs of antioxidants while Celecoxib and Anakinra as anti-inflammatory. The bioinformatics approaches including molecular docking calculations followed by the pharmacokinetics analysis and molecular dynamic simulations were accomplished to explore the capabilities of designed stilbenes as effective and potential leads. Root mean square deviation, root mean square fluctuations, and MM-GBSA calculations were performed through molecular dynamic simulations to extract the structural and residual variations and binding free energies through the 50-ns time scale., (© 2023. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.)
- Published
- 2023
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40. Attitudes About Artificially Intelligent Interactive Voice Response Systems Using Amazon Alexa in Cardiovascular Clinics: Insights from the VOICE-COVID-19 Study.
- Author
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Ganni E, Razaghizad A, Oulousian E, Chung P, Ni J, Avram R, and Sharma A
- Subjects
- Female, Humans, Middle Aged, Male, SARS-CoV-2, Attitude, COVID-19
- Abstract
The acceptability of artificially intelligent interactive voice response (AI-IVR) systems in cardiovascular research settings is unclear. As a result, we evaluated peoples' attitudes regarding the Amazon Echo Show 8 device when used for electronic data capture in cardiovascular clinics. Participants were recruited following the Voice-Based Screening for SARS-CoV-2 Exposure in Cardiovascular clinics study. Overall, 215 people enrolled and underwent screening (mean age 46.1; 55% females) in the VOICE-COVID study and 58 people consented to participate in a post-screening survey. Following thematic analysis, four key themes affecting AI-IVR acceptability were identified. These were difficulties with communication (44.8%), limitations with available interaction modalities (41.4%), barriers with the development of therapeutic relationships (25.9%), and concerns with universality and accessibility (8.6%). While there are potential concerns with the use of AI-IVR technologies, these systems appeared to be well accepted in cardiovascular clinics. Increased development of these technologies could significantly improve healthcare access and efficiency., (© 2023. The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.)
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- 2023
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41. Br vacancy engineering in Cs 3 Bi 2 Br 9 for photocatalytic NO oxidation under visible light.
- Author
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Chen J, Wu M, Ni J, and Ni C
- Subjects
- Catalysis, Light, Oxidation-Reduction, Lead, Bismuth
- Abstract
Photocatalysis using the visible light of the sun is an environmentally friendly method of eliminating the NOx pollutant from the ambient air. Although Cs
3 Bi2 Br9 , a semiconductor with a band gap of 2.54 eV, may be a strong absorber of visible light, its photocatalysis towards the abatement of NOx is unknown. In this study, Cs3 Bi2-x Pbx Br9-x (0 ≤ x ≤ 0.0789) are used for the photocatalytic oxidation of NOx. A significant NO oxidation efficiency (80%) is observed over Cs3 Bi2-x Pbx Br9-x (x = 0.0443) under visible light, which is attributable to the Br vacancy (VBr ) brought about by Pb2+ doping. The presence of VBr increased the ionic selectivity of in the oxidized NO. At higher Pb doping level, two HONOs adsorbed on the VBr , linked, and then reduced by hot electrons to produce N2 O2 2- . The di-azo coupling could passivate the activation of NO on the VBr . This work advances the defect engineering of halide for the photo-driving solid-gas reaction in air., (© 2023. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.)- Published
- 2023
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42. Correction: Paired Box 5-Induced LINC00467 Upregulation Promotes the Progression of Laryngeal Squamous Cell Cancer by Triggering the MicroRNA-4735-3p/TNF Alpha-Induced Protein 3 Pathway.
- Author
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Li Y, Wu Y, Dai L, Wu H, Chen C, Ni J, Jin E, and Zhou X
- Published
- 2023
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43. Paired Box 5-Induced LINC00467 Upregulation Promotes the Progression of Laryngeal Squamous Cell Cancer by Triggering the MicroRNA-4735-3p/TNF Alpha-Induced Protein 3 Pathway.
- Author
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Li Y, Wu Y, Dai L, Wu H, Chen C, Ni J, Jin E, and Zhou X
- Subjects
- Humans, Up-Regulation, Tumor Necrosis Factor-alpha genetics, Cell Line, Tumor, Squamous Cell Carcinoma of Head and Neck genetics, Cell Proliferation genetics, Gene Expression Regulation, Neoplastic, MicroRNAs genetics, MicroRNAs metabolism, Carcinoma, Squamous Cell metabolism, Laryngeal Neoplasms genetics, Laryngeal Neoplasms metabolism, Laryngeal Neoplasms pathology, Head and Neck Neoplasms genetics
- Abstract
LINC00467 was reported as an oncogenic gene in different types of human cancers. In this study, we investigated the molecular mechanisms of LINC00467 in the tumorigenesis of laryngeal squamous cell cancer (LSCC). RT-qPCR was utilized to detect the mRNA expression of genes, and western blot assay was used to determine the protein levels of TNF alpha-induced protein 3 (TNFAIP3). The cell viability was detected by CCK-8 assay. Transwell assays were conducted to determine the cell migration and invasion of LSCC cells, and the cell cycle was assessed by flow cytometry. The association between paired box 5 (PAX5), LINC00467, miR-4735-3p, and TNFAIP3 was verified using ChIP, RNA pull-down, or luciferase reporter assays. In our study, we found that LINC00467 was upregulated in LSCC, and knockdown of LINC00467 suppressed cell viability and metastasis of LSCC. Besides, LINC00467 transcription could be activated by PAX5 in LSCC. Furthermore, LINC00467 acted as competitive endogenous RNA (ceRNA) for miR-4735-3p to accelerate LSCC progression. In the meantime, TNFAIP3 was identified as a downstream gene of miR-4735-3p. Finally, TNFAIP3 overexpression could overturn the effects of miR-4735-3p mimic on LSCC cellular activities. In conclusion, our results demonstrated that PAX5-induced LINC00467 facilitated LSCC progression by inhibiting miR-4735-3p to increase TNFAIP3 expression., (© 2022. The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.)
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- 2023
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44. Correction to: Relationship between exposure to cadmium, lead, and mercury and the occurrence of urinary incontinence in women.
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Ni J, Li Z, Lu Y, Zhang H, Wang G, Xie J, Xie J, Wang Y, Zhang Y, Wang K, Mao W, and Peng B
- Published
- 2023
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45. Macrolactin R from Bacillus siamensis and its antifungal activity against Botrytis cinerea.
- Author
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Ni J, Yu L, Li F, Li Y, Zhang M, Deng Y, and Liu X
- Subjects
- Mycelium, Botrytis, Plant Diseases prevention & control, Plant Diseases microbiology, Antifungal Agents pharmacology, Bacillus
- Abstract
Botrytis cinerea is listed among the most important fungal pathogens infecting strawberries. The use of biological control agents, such as Bacillus species, offers an alternative and effective way to reduce airborne pathogens. The aim of this research was to select the macrolactin R produced by Bacillus siamensis with potential for using as biological agents against the pathogenetic fungi (Botrytis cinerea) of strawberries, and to assess the mechanisms involved. Macrolactin R had significant inhibitory effects on spore germination, germ tube elongation, and mycelial growth of Botrytis cinerea. The MICs of macrolactin R inhibitions in vitro was 12.5 mg/L and The EC
50 value of NJ08-3 to Botrytis cinerea spores and mycelial was 1.93 and 2.88 mg/L, respectively. Macrolactin R impacted the membrane structure of Botrytis cinerea, resulting in changes in membrane permeability and leakage of proteins and nucleic acids, then cell death. The application of the macrolactin R of Bacillus siamensis reduced the disease severity index of gray mold on strawberries. This study demonstrated that the production of macrolactin R produced by Bacillus siamensis are involved in the antifungal activity against Botrytis cinerea., (© 2023. The Author(s), under exclusive licence to Springer Nature B.V.)- Published
- 2023
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46. Arthritis and incident pulmonary diseases in middle-aged and elderly Chinese: a longitudinal population-based study.
- Author
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Ni J, Huang JX, Wang P, Huang YX, Yin KJ, Tian T, Cen H, Sui C, and Pan HF
- Subjects
- Aged, Humans, Middle Aged, China epidemiology, East Asian People, Longitudinal Studies, Arthritis complications, Arthritis epidemiology, Asthma complications, Asthma epidemiology, Lung Diseases complications, Lung Diseases epidemiology, Pulmonary Disease, Chronic Obstructive complications, Pulmonary Disease, Chronic Obstructive epidemiology
- Abstract
Background: The coexistence of arthritis and pulmonary abnormalities has long been observed, but the causal inter-relationships among them are still uncertain especially in elderly adults., Methods: We extracted data from The China Health and Retirement Longitudinal Study (CHARLS). A total of 7534 participants without chronic lung diseases or/and asthma at the baseline and have complete follow-up information were included. Multivariate Cox proportional hazards models were used to estimate the adjusted hazard ratios (HRs) for developing chronic lung diseases or asthma. We also utilized generalized linear models to examine the association between arthritis and baseline peak expiratory flow (PEF)., Results: During 50,615 and 51,975 person-years of follow-up, 629 and 188 participants incident chronic lung diseases and asthma, respectively. Compared to those without arthritis, participants with arthritis had a higher risk of chronic lung diseases (HR = 1.54, 95%CI = 1.31-1.81, P = 1.23 × 10
-7 ) and asthma (HR = 1.70, 95%CI = 1.27-2.28, P = 3.78 × 10-4 ). Arthritis subjects demonstrated significantly lower PEF than those without arthritis [β = - 11.85 (95%CI = - 17.56, - 6.14), P = 4.81 × 10-5 ]. The results were stable after excluding these participates who incident chronic lung diseases or asthma in the first 1 year of follow-up., Conclusion: Arthritis increased the risk of pulmonary diseases among middle-aged and elderly Chinese. Early detection and treatment of pulmonary abnormalities among arthritis patients could help decrease the mortality and reduce the global burden of arthritis. Key Points • The coexistence of arthritis and pulmonary abnormalities has long been observed, but whether arthritis status can trigger pulmonary disorders is still uncertain. • Arthritis status are associated with increased risk of pulmonary diseases (chronic lung diseases/asthma) among middle-aged and elderly Chinese. • Early detection and treatment of pulmonary abnormalities among arthritis patients could help decrease the mortality and reduce the global burden of arthritis., (© 2022. The Author(s), under exclusive licence to International League of Associations for Rheumatology (ILAR).)- Published
- 2023
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47. Shared genetic architecture between type 2 diabetes and COVID-19 severity.
- Author
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Ni J, Qiu LJ, Yin KJ, Chen GM, and Pan HF
- Subjects
- Humans, Genome-Wide Association Study, Comorbidity, Glutathione genetics, Polymorphism, Single Nucleotide, Diabetes Mellitus, Type 2 epidemiology, Diabetes Mellitus, Type 2 genetics, COVID-19 epidemiology, COVID-19 genetics, COVID-19 complications
- Abstract
Purpose: Patients with type 2 diabetes (T2D) have demonstrated a higher risk for developing more severe cases of COVID-19, but the complex genetic mechanism between them is still unknown. The aim of the present study was to untangle this relationship using genetically based approaches., Methods: By leveraging large-scale genome-wide association study (GWAS) summary statistics of T2D and COVID-19 severity, linkage disequilibrium score regression and Mendelian randomization (MR) analyses were utilized to quantify the genetic correlations and causal relationships between the two traits. Gene-based association and enrichment analysis were further applied to identify putative functional pathways shared between T2D and COVID-19 severity., Results: Significant, moderate genetic correlations were detected between T2D and COVID-19 hospitalization (r
g = 0.156, SE = 0.057, p = 0.005) or severe disease (rg = 0.155, SE = 0.057, p = 0.006). MR analysis did not support evidence for a causal effect of T2D on COVID-19 hospitalization (OR 1.030, 95% CI 0.979, 1.084, p = 0.259) or severe disease (OR 0.999, 95% CI 0.934, 1.069, p = 0.982). Genes having pgene < 0.05 for both T2D and COVID-19 severe were significantly enriched for biological pathways, such as response to type I interferon, glutathione derivative metabolic process and glutathione derivative biosynthetic process., Conclusions: Our findings further confirm the comorbidity of T2D and COVID-19 severity, but a non-causal impact of T2D on severe COVID-19. Shared genetically modulated molecular mechanisms underlying the co-occurrence of the two disorders are crucial for identifying therapeutic targets., (© 2022. The Author(s), under exclusive licence to Italian Society of Endocrinology (SIE).)- Published
- 2023
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48. The genetic side of diabetic kidney disease: a review.
- Author
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Song J, Ni J, and Yin X
- Subjects
- Humans, Renin-Angiotensin System genetics, Inflammation complications, Diabetic Nephropathies metabolism, Diabetes Mellitus, Type 2 complications, Diabetes Mellitus, Type 2 genetics, Kidney Failure, Chronic complications
- Abstract
Background: Diabetic kidney disease (DKD) is one of the most common complications of diabetes, with approximately 30-40% of patients with type 1 diabetes mellitus and 20% of patients with type 2 diabetes mellitus eventually developing DKD. If DKD is not controlled in the early clinical stage and proteinuria develops, the disease will progress to end-stage renal disease. The pathogenesis of DKD remains largely unknown and is multifactorial, likely due to interactions between genetic and environmental factors. Familial clustering also supports a critical role of hereditary factors in DKD. The development of gene detection technology has promoted the exploration of DKD susceptibility genes in different cohorts of patients with diabetes. Identifying susceptibility genes can provide insights into the pathogenesis of DKD, as well as a basis for its clinical diagnosis and therapy., Results: Numerous candidate gene loci have been found to be associated with DKD, many of which play critical regulatory roles in the pathogenesis of this disease, including genes involved in glycol-metabolism, lipid metabolism, the renin-angiotensin-aldosterone system, inflammation and oxidative stress. In this review, we summarize the functions of several susceptibility genes involved in the development of DKD., Conclusion: Based on our findings, we recommend that studying susceptibility gene polymorphisms can lead to a better understanding of the pathogenesis of DKD and could help prevent this disease or improve its outcomes., (© 2022. The Author(s), under exclusive licence to Springer Nature B.V.)
- Published
- 2023
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49. Carbon emission model of vehicles driving at fluctuating speed on highway.
- Author
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Dong Y, Xu J, and Ni J
- Subjects
- Carbon, Vehicle Emissions analysis, Motor Vehicles, Air Pollutants analysis, Automobile Driving
- Abstract
Carbon emission changes significantly when the vehicle is driving at a variable speed. Given that the rule of vehicle carbon emissions under different driving behaviors is underexplored, this study filled this research gap by establishing a theoretical carbon emission model when vehicles are driving at fluctuating speed. The model was established based on the law of conservation of mechanical energy, the first law of thermodynamics, the theory of vehicle dynamics. Two passenger cars and three trucks were selected as typical vehicles. A field test was carried out under different driving behaviors with uniform acceleration. The proposed model can forecast the carbon emissions of vehicles that fluctuate in speed during travel and showed strong accuracy in model validation. As the speed fluctuation increased, the influence of acceleration on carbon emissions became more apparent. Gradient has a more significant influence on vehicle carbon emissions, followed by acceleration. By controlling the driving behavior of the vehicle on the round trip, the same carbon emissions as driving on a flat route at a constant speed can be achieved. The findings of this study will provide a theoretical basis for low-carbon transportation., (© 2022. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.)
- Published
- 2023
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50. The relationship between ethylene oxide levels in hemoglobin and the prevalence of kidney stones in US adults: an exposure-response analysis from NHANES 2013-2016.
- Author
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Song W, Hu H, Ni J, Zhang H, Zhang H, Yang G, Wang Y, Zhang Y, and Peng B
- Subjects
- Humans, Adult, Nutrition Surveys, Prevalence, Cross-Sectional Studies, Hemoglobins, Ethylene Oxide, Kidney Calculi epidemiology
- Abstract
Exposure to ethylene oxide may cause a number of diseases. The purpose of this study was to investigate whether there is an association between hemoglobin ethylene oxide (HbEO) and the risk of developing kidney stones in US adults. We analyzed 3348 patients from the National Health and Nutrition Survey (NHANES) 2013-2016 and conducted a cross-sectional study. Dose-response analysis curves of restricted cubic spline function, multiple logistic regression, and subgroup analysis were used to investigate the association between HbEO and the risk of kidney stones. Logistic regression models were used to analyze the correlation between HbEO and kidney stones. Among the 3348 participants, 3016 people self-reported having a kidney stone. After adjusting for age, sex, race, marital status, education level, diabetes, vigorous recreational activity, moderate recreational activity, body mass index, blood urea nitrogen, creatinine, eGFR, and uric acid, we found a positive association between HbEO and the risk of kidney stones. We divided patients into four groups based on quartiles of HbEO levels and performed multifactorial logistic regression after adjusting for confounders, which showed that the incidence of kidney stones increased with increasing HbEO concentrations compared with Q1 (Q2, OR = 0.922, 95% CI, 0. 657-1.295, P = 0.639; Q3, OR = 1.004, 95% CI, 0.713-1.414, P = 0.983; Q4, OR = 1.535, 95% CI, 1.114-2.114, P = 0.009). High levels of HbEO were positively correlated with the risk of kidney stone development and could be used as an indicator of kidney stone prevention., (© 2022. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.)
- Published
- 2023
- Full Text
- View/download PDF
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