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  1. Book ; Online: Antimicrobial Resistance and Anti-Biofilms

    Liu, Junyan / Chen, Ding-Qiang / Tan, Yulong / Gan, Ren-You / Qu, Guanggang / Xu, Zhenbo

    2023  

    Keywords Research & information: general ; Biology, life sciences ; Microbiology (non-medical) ; carbapenem-resistant Enterobacteriaceae ; metallo-β-lactamases ; NDM producers ; complicated urinary tract infections ; outcomes ; costs ; burden of illness ; Medicare ; Serratia marcescens ; multidrug resistance ; mcr-9 ; blaIMP-26 ; megaplasmids IMP-26 ; evolutionary pathway ; Canarium patentinervium Miq. ; antibiofilm activity ; AcrAB-TolC efflux pump ; molecular docking ; Autodock Vina ; Staphylococcus aureus ; persisters ; biofilm ; antimicrobial activity ; drug combination ; Ralstonia mannitolilytica ; chronic obstructive pulmonary disease (COPD) ; catheter-related bloodstream infection (CRBSI) ; commensal ; pathogen ; chitosan ; nanoparticle ; antibiofilm ; cinnamaldehyde ; invasive plants ; natural products ; molecular networking ; Candida albicans ; betulinic acid ; biofilms ; extracellular matrix ; quorum sensing ; antibiotic resistance ; Streptococcus mutans ; dental caries ; Casearia sylvestris
    Language English
    Size 1 electronic resource (164 pages)
    Publisher MDPI - Multidisciplinary Digital Publishing Institute
    Publishing place Basel
    Document type Book ; Online
    Note English
    HBZ-ID HT030722373
    ISBN 9783036569505 ; 3036569502
    Database ZB MED Catalogue: Medicine, Health, Nutrition, Environment, Agriculture

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  2. Article: Editorial: Eicosanoids and cytokines: Resolution of inflammation.

    Liu, Jun-Yan

    Frontiers in pharmacology

    2022  Volume 13, Page(s) 978331

    Language English
    Publishing date 2022-08-11
    Publishing country Switzerland
    Document type Editorial
    ZDB-ID 2587355-6
    ISSN 1663-9812
    ISSN 1663-9812
    DOI 10.3389/fphar.2022.978331
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Pathological and pharmacological functions of the metabolites of polyunsaturated fatty acids mediated by cyclooxygenases, lipoxygenases, and cytochrome P450s in cancers.

    Meng, Yi-Wen / Liu, Jun-Yan

    Pharmacology & therapeutics

    2024  Volume 256, Page(s) 108612

    Abstract: Oxylipins have garnered increasing attention because they were consistently shown to play pathological and/or pharmacological roles in the development of multiple cancers. Oxylipins are the metabolites of polyunsaturated fatty acids via both enzymatic ... ...

    Abstract Oxylipins have garnered increasing attention because they were consistently shown to play pathological and/or pharmacological roles in the development of multiple cancers. Oxylipins are the metabolites of polyunsaturated fatty acids via both enzymatic and nonenzymatic pathways. The enzymes mediating the metabolism of PUFAs include but not limited to lipoxygenases (LOXs), cyclooxygenases (COXs), and cytochrome P450s (CYPs) pathways, as well as the down-stream enzymes. Here, we systematically summarized the pleiotropic effects of oxylipins in different cancers through pathological and pharmacological aspects, with specific reference to the enzyme-mediated oxylipins. We discussed the specific roles of oxylipins on cancer onset, growth, invasion, and metastasis, as well as the expression changes in the associated metabolic enzymes and the associated underlying mechanisms. In addition, we also discussed the clinical application and potential of oxylipins and related metabolic enzymes as the targets for cancer prevention and treatment. We found the specific function of most oxylipins in cancers, especially the underlying mechanisms and clinic applications, deserves and needs further investigation. We believe that research on oxylipins will provide not only more therapeutic targets for various cancers but also dietary guidance for both cancer patients and healthy humans.
    MeSH term(s) Humans ; Oxylipins/metabolism ; Lipoxygenases ; Prostaglandin-Endoperoxide Synthases/metabolism ; Fatty Acids, Unsaturated/metabolism ; Cytochromes ; Neoplasms/drug therapy ; Cytochrome P-450 Enzyme System/metabolism
    Chemical Substances Oxylipins ; Lipoxygenases (EC 1.13.11.-) ; Prostaglandin-Endoperoxide Synthases (EC 1.14.99.1) ; Fatty Acids, Unsaturated ; Cytochromes ; Cytochrome P-450 Enzyme System (9035-51-2)
    Language English
    Publishing date 2024-02-16
    Publishing country England
    Document type Journal Article ; Review
    ZDB-ID 194735-7
    ISSN 1879-016X ; 0163-7258
    ISSN (online) 1879-016X
    ISSN 0163-7258
    DOI 10.1016/j.pharmthera.2024.108612
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Research on Improved MOF Materials Modified by Functional Groups for Purification of Water.

    Liu, Junyan / Wang, Yang

    Molecules (Basel, Switzerland)

    2023  Volume 28, Issue 5

    Abstract: With the rapid development of urbanization and industrialization, water contamination has gradually become a big problem. Relevant studies show that adsorption is an efficient strategy to treat pollutants in water. MOFs are a class of porous materials ... ...

    Abstract With the rapid development of urbanization and industrialization, water contamination has gradually become a big problem. Relevant studies show that adsorption is an efficient strategy to treat pollutants in water. MOFs are a class of porous materials with a three-dimensional frame structure shaped by the self-assembly of metal centers and organic ligands. Because of its unique performance advantages, it has become a promising adsorbent. At present, single MOFs cannot meet the needs, but the introduction of familiar functional groups on MOFs can promote the adsorption performance of MOFs on the target. In this review, the main advantages, adsorption mechanism, and specific applications of various functional MOF adsorbents for pollutants in water are reviewed. At the end of the article, we summarize and discuss the future development direction.
    Language English
    Publishing date 2023-02-24
    Publishing country Switzerland
    Document type Journal Article ; Review
    ZDB-ID 1413402-0
    ISSN 1420-3049 ; 1431-5165 ; 1420-3049
    ISSN (online) 1420-3049
    ISSN 1431-5165 ; 1420-3049
    DOI 10.3390/molecules28052141
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Green Human Resource Management, Employee Work Values, and Enterprise Environmental Performance.

    Liu, Junyan / Wu, Yongli

    Journal of environmental and public health

    2022  Volume 2022, Page(s) 8129359

    Abstract: China's economy is developing rapidly, and enterprises are paying more and more attention to environmental protection in the process of economic development. However, relatively speaking, the environmental awareness of enterprises and employees needs to ... ...

    Abstract China's economy is developing rapidly, and enterprises are paying more and more attention to environmental protection in the process of economic development. However, relatively speaking, the environmental awareness of enterprises and employees needs to be further improved. This paper investigates the impact of green human resource management on environmental performance by questionnaire survey. A total of 372 questionnaires were distributed to front-line employees and human resource supervisors, 357 of which were valid. Using descriptive statistics, correlation analysis, regression analysis, and mediating effect test, this paper studies the relationship between green human resource management and environmental performance, and tests the mediating role of employees' work values between green human resource management and enterprise environmental performance. The conclusion of the empirical study has some inspiration for the green human resource management of enterprises, provides some references for the development of relevant theories, and provides practical significance for the green development of enterprises.
    MeSH term(s) Humans ; Workforce
    Language English
    Publishing date 2022-06-27
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2526611-1
    ISSN 1687-9813 ; 1687-9813
    ISSN (online) 1687-9813
    ISSN 1687-9813
    DOI 10.1155/2022/8129359
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article: Inhibition of Soluble Epoxide Hydrolase for Renal Health.

    Liu, Jun-Yan

    Frontiers in pharmacology

    2019  Volume 9, Page(s) 1551

    Abstract: A soluble epoxide hydrolase (sEH) mediates the metabolism of epoxy fatty acids to form the corresponding vicinal diols, which are usually inactive or less active than the epoxide substrates. The sEH enzyme presents in many organs, including but not ... ...

    Abstract A soluble epoxide hydrolase (sEH) mediates the metabolism of epoxy fatty acids to form the corresponding vicinal diols, which are usually inactive or less active than the epoxide substrates. The sEH enzyme presents in many organs, including but not limited to the liver, heart, spleen, lung, and kidney. Here we summarized the changes in the expression and activity of sEH in multiple renal diseases, such as acute kidney injury (AKI), diabetic nephrology (DN), chronic kidney diseases (CKD), hypertension-mediated renal damage, and other renal dysfunctions. We also discussed the pharmacologic effects and the underlying mechanisms of sEH inhibition by using an inhibitor of sEH and/or the generic deletion of sEH on multiple renal diseases. We believe that sEH is a potential therapeutic target for renal dysfunction although the target disease needs further investigation.
    Language English
    Publishing date 2019-01-10
    Publishing country Switzerland
    Document type Journal Article ; Review
    ZDB-ID 2587355-6
    ISSN 1663-9812
    ISSN 1663-9812
    DOI 10.3389/fphar.2018.01551
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Saikosaponin D mitigate pilocarpine-induced astrocyte injury by regulating the NLRP3/caspase-1 signaling pathway.

    Liu, Jun-Yan / Shen, Yu-Ling / Zhu, Jing-Yi / Yang, Dong-Dong

    Chemical biology & drug design

    2024  Volume 103, Issue 3, Page(s) e14481

    Abstract: Studies have shown that saikosaponin D (SSD) has favorable neurotherapeutic effects. Therefore, the objective of this study was to explore the efficacy and possible molecular mechanisms of SSD on pilocarpine (PP)-induced astrocyte injury. Primary ... ...

    Abstract Studies have shown that saikosaponin D (SSD) has favorable neurotherapeutic effects. Therefore, the objective of this study was to explore the efficacy and possible molecular mechanisms of SSD on pilocarpine (PP)-induced astrocyte injury. Primary astrocytes were isolated from juvenile rats and identified using immunofluorescence. The cells were treated with PP and/or SSD for 6 h and 12 h, respectively, followed by measurement of their viability through 3-(4,5-dimethylthiazol)-2,5-diphenyl-tetrazolium bromide (MTT) assay. Next, quantitative real-time polymerase chain reaction (qRT-PCR) was used to measure the expression levels of Glial fibrillary acidic protein (GFAP), C3, S100 calcium binding protein A10 (S100a10), pentraxin 3 (Ptx3), toll-like receptor 4 (TLR4), and RAG in astrocytes after different treatments. Enzyme-linked immunosorbent assay and biochemical tests were utilized to evaluate the level of inflammatory factors [interleukin (IL)-1β, IL-6, and tumor necrosis factor alpha (TNF-α)] secreted by cells and the content of oxidative stress-related factors (malondialdehyde [MDA] and glutathione [GSH]) or enzyme activity (catalase [CAT] and glutathione peroxidase [GPX]) in cells. The JC-1 mitochondrial membrane potential (MMP) fluorescence probe was used to measure the MMP in astrocytes. Additionally, western blot was applied to test the expression of proteins related to the nod-like receptor protein 3 (NLRP3)/caspase-1 signaling pathway. PP treatment (1 mM) induced cell injury by significantly reducing the viability of astrocytes and expression of cellular markers. SSD treatment (4 μM) had no toxicity to astrocytes. Besides, SSD (4 μM) treatment could significantly up-regulate the cell viability and marker expression of PP-induced astrocytes. Furthermore, SSD could be employed to inhibit inflammation (reduce IL-1β, IL-6, and TNF-α levels) and oxidative stress (decrease MDA level, elevate GSH level, the activity of CAT and GPX), and ameliorate mitochondrial dysfunction (upregulate JC-1 ratio) in PP-induced astrocytes. Moreover, further mechanism exploration revealed that SSD treatment significantly reduced the activity of the NLRP3/caspase-1 signaling pathway activated by PP induction. SSD increased cell viability, inhibited inflammation and oxidative stress response, and ameliorated mitochondrial dysfunction in PP-induced astrocyte injury model, thus playing a neuroprotective role. The mechanism of SSD may be related to the inhibition of the NLRP3/caspase-1 inflammasome.
    MeSH term(s) Rats ; Animals ; NLR Family, Pyrin Domain-Containing 3 Protein/metabolism ; Astrocytes/metabolism ; Astrocytes/pathology ; Pilocarpine/toxicity ; Tumor Necrosis Factor-alpha/genetics ; Caspases/metabolism ; Interleukin-6 ; Signal Transduction ; Inflammation/metabolism ; Mitochondrial Diseases ; Benzimidazoles ; Carbocyanines ; Oleanolic Acid/analogs & derivatives ; Saponins
    Chemical Substances NLR Family, Pyrin Domain-Containing 3 Protein ; saikosaponin D (UR635J3F00) ; Pilocarpine (01MI4Q9DI3) ; Tumor Necrosis Factor-alpha ; Caspases (EC 3.4.22.-) ; 5,5',6,6'-tetrachloro-1,1',3,3'-tetraethylbenzimidazolocarbocyanine (21527-78-6) ; Interleukin-6 ; Benzimidazoles ; Carbocyanines ; Oleanolic Acid (6SMK8R7TGJ) ; Saponins
    Language English
    Publishing date 2024-03-07
    Publishing country England
    Document type Journal Article
    ZDB-ID 2216600-2
    ISSN 1747-0285 ; 1747-0277
    ISSN (online) 1747-0285
    ISSN 1747-0277
    DOI 10.1111/cbdd.14481
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Robust Discriminant Subspace Clustering With Adaptive Local Structure Embedding.

    Liu, Junyan / Li, Dapeng / Zhao, Haitao / Gao, Lin

    IEEE transactions on neural networks and learning systems

    2023  Volume 34, Issue 5, Page(s) 2466–2479

    Abstract: Unsupervised dimension reduction and clustering are frequently used as two separate steps to conduct clustering tasks in subspace. However, the two-step clustering methods may not necessarily reflect the cluster structure in the subspace. In addition, ... ...

    Abstract Unsupervised dimension reduction and clustering are frequently used as two separate steps to conduct clustering tasks in subspace. However, the two-step clustering methods may not necessarily reflect the cluster structure in the subspace. In addition, the existing subspace clustering methods do not consider the relationship between the low-dimensional representation and local structure in the input space. To address the above issues, we propose a robust discriminant subspace (RDS) clustering model with adaptive local structure embedding. Specifically, unlike the existing methods which incorporate dimension reduction and clustering via regularizer, thereby introducing extra parameters, RDS first integrates them into a unified matrix factorization (MF) model through theoretical proof. Furthermore, a similarity graph is constructed to learn the local structure. A constraint is imposed on the graph to guarantee that it has the same connected components with low-dimensional representation. In this spirit, the similarity graph serves as a tradeoff that adaptively balances the learning process between the low-dimensional space and the original space. Finally, RDS adopts the l
    Language English
    Publishing date 2023-05-02
    Publishing country United States
    Document type Journal Article
    ISSN 2162-2388
    ISSN (online) 2162-2388
    DOI 10.1109/TNNLS.2021.3106702
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Resolution improvement of photothermal microscopy by the modulated difference method.

    Wang, Yonghui / Wang, Fei / Song, Peng / Liu, Junyan

    Optics letters

    2023  Volume 48, Issue 7, Page(s) 1750–1753

    Abstract: Photothermal microscopy (PTM) was developed to image non-fluorescent objects. In the past two decades, PTM has reached single-particle and single-molecule sensitivity and has been used in the fields of material science and biology. However, PTM is a far- ... ...

    Abstract Photothermal microscopy (PTM) was developed to image non-fluorescent objects. In the past two decades, PTM has reached single-particle and single-molecule sensitivity and has been used in the fields of material science and biology. However, PTM is a far-field imaging method whose resolution is restricted by the diffraction limits. This Letter reports a resolution improvement approach for photothermal microscopy called modulated difference PTM (MD-PTM), which utilizes Gaussian and doughnut formalism heating beams that are modulated at the same frequency but are of opposite phase to generate the photothermal signal. Furthermore, the opposite phase characteristics of the photothermal signals are applied to determine the objective profile from the PTM magnitude, and this helps to improve the lateral resolution of PTM. The lateral resolution is related to the difference coefficient between the Gaussian and doughnut heating beams; an increase in the difference coefficient causes a larger sidelobe of the MD-PTM amplitude, which readily forms an artifact. A pulse-coupled neural network (PCNN) is employed for phase image segmentations of MD-PTM. We experimentally study the micro-imaging of gold nanoclusters and crossed nanotubes using MD-PTM, and the results indicate that MD-PTM has merit in terms of improving the lateral resolution.
    Language English
    Publishing date 2023-05-23
    Publishing country United States
    Document type Journal Article
    ISSN 1539-4794
    ISSN (online) 1539-4794
    DOI 10.1364/OL.484969
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: Male larval experience of cues from adult rivals alters lifetime sperm investment patterns in a sperm heteromorphic moth, Ephestia kuehniella.

    Liu, Junyan / He, Xiong Zhao / Wang, Qiao

    Insect science

    2023  Volume 30, Issue 6, Page(s) 1773–1783

    Abstract: Male animals may adjust their resource allocations for reproduction and other fitness functions in response to cues from rivals. For instance, adult males increase their investment in sperm for a higher paternity share when they perceive sperm ... ...

    Abstract Male animals may adjust their resource allocations for reproduction and other fitness functions in response to cues from rivals. For instance, adult males increase their investment in sperm for a higher paternity share when they perceive sperm competition risk in their surroundings. In nature, both juveniles and adults may coexist spatially and temporally. Yet, it is not clear how juvenile males of different ages respond to cues from adult rivals and fine-tune their lifetime investment in sperm production and ejaculation in any insect. Here we used the Mediterranean flour moth, Ephestia kuehniella, which produces both fertile eupyrene and infertile apyrene sperm, to explore this question. We demonstrate that the late, but not early, instar larvae are sensitive to adult male cues. As a response, they produce more sperm before emergence and their resultant adults have shorter mating latency and ejaculate more sperm in the first few matings. When the juvenile stage produces more eupyrenes, the adult stops making these sperm, but regardless of the number of apyrenes produced during the juvenile stage, the adult continues to make them. These findings suggest that the number of spermatogonia for eupyrenes may be limited and that for apyrenes may be flexible. Our results show that the insect does not trade off survival, mating frequency, body size, or testis size for sperm production in response to adult males during the larval stage. Knowledge created in the present study offers insight into the stage-dependent sensitivity of juvenile males to cues from adult rivals and subsequent lifetime resource allocations.
    MeSH term(s) Male ; Animals ; Moths/physiology ; Larva ; Cues ; Semen ; Spermatozoa/physiology ; Sexual Behavior, Animal
    Language English
    Publishing date 2023-05-10
    Publishing country Australia
    Document type Journal Article
    ZDB-ID 2179775-4
    ISSN 1744-7917 ; 1672-9609
    ISSN (online) 1744-7917
    ISSN 1672-9609
    DOI 10.1111/1744-7917.13204
    Database MEDical Literature Analysis and Retrieval System OnLINE

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