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  1. Article ; Online: Function of Innate Lymphoid Cells in Periodontal Tissue Homeostasis

    Zhiyu Ma / Jinsong Wang / Lei Hu / Songlin Wang

    International Journal of Molecular Sciences, Vol 24, Iss 6099, p

    A Narrative Review

    2023  Volume 6099

    Abstract: Periodontitis is an irreversible inflammatory response that occurs in periodontal tissues. Given the size and diversity of natural flora in the oral mucosa, host immunity must strike a balance between pathogen identification and a complicated system of ... ...

    Abstract Periodontitis is an irreversible inflammatory response that occurs in periodontal tissues. Given the size and diversity of natural flora in the oral mucosa, host immunity must strike a balance between pathogen identification and a complicated system of tolerance. The innate immune system, which includes innate lymphoid cells (ILCs), certainly plays a crucial role in regulating this homeostasis because pathogens are quickly recognized and responded to. ILCs are a recently discovered category of tissue-resident lymphocytes that lack adaptive antigen receptors. ILCs are found in both lymphoid and non-lymphoid organs and are particularly prevalent at mucosal barrier surfaces, where they control inflammatory response and homeostasis. Recent studies have shown that ILCs are important players in periodontitis; however, the mechanisms that govern the innate immune response in periodontitis still require further investigation. This review focuses on the intricate crosstalk between ILCs and the microenvironment in periodontal tissue homeostasis, with the purpose of regulating or improving immune responses in periodontitis prevention and therapy.
    Keywords innate immunity ; periodontitis (PD) ; innate lymphoid cells (ILC) ; Biology (General) ; QH301-705.5 ; Chemistry ; QD1-999
    Language English
    Publishing date 2023-03-01T00:00:00Z
    Publisher MDPI AG
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  2. Article ; Online: Synthesis of magnetic Fe3O4-HKUST-1 nanocomposites for azo dye adsorption

    Zhiyu Ma / Chenhui Liu / C. Srinivasakannan / Lingbo Li / Yongli Wang

    Arabian Journal of Chemistry, Vol 16, Iss 6, Pp 104767- (2023)

    2023  

    Abstract: The magnetic Fe3O4-HKUST-1 nanocomposites were synthesized using a simple and green hydrothermal technique, utilizing Fe3O4 and the chemically stable metal–organic framework HKUST-1. The Fe3O4-HKUST-1 nanocomposites were synthesized with a varied ... ...

    Abstract The magnetic Fe3O4-HKUST-1 nanocomposites were synthesized using a simple and green hydrothermal technique, utilizing Fe3O4 and the chemically stable metal–organic framework HKUST-1. The Fe3O4-HKUST-1 nanocomposites were synthesized with a varied proportion of Fe3O4 and subjected to advanced characterization, which included XRD, IR, BET, TG, SEM, TEM, EDS, and VSM. The magnetic nanocomposite 0.4 Fe3O4-HKUST-1 (FH4) had a rough surface with spherical morphology and a good proportion of micro and mesopores. The magnetic nanocomposite had a mean pore size of 2.58 nm, with pore volume of 0.35 cm3/g, having excellent magnetic saturation performance (26.39 emu/g). The adsorption isotherm and adsorption kinetics of magnetic nanocomposites on azo dye neutral red (NR) wastewater were assessed in detail. In contrast to the Freundlich model, the Langmuir model better described the adsorption isotherms, while the pseudo-second-order kinetic model better captured the adsorption kinetics. The FH4 magnetic nanocomposite was the most effective adsorbent with the highest adsorption capacity for NR separation.
    Keywords Metal organic framework ; HKUST-1 ; Fe3O4 ; Nanocomposite ; Adsorption ; Chemistry ; QD1-999
    Subject code 540
    Language English
    Publishing date 2023-06-01T00:00:00Z
    Publisher Elsevier
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  3. Article: Analysis of the Spatio-Temporal Differentiation of Cultivated Land Pressure in the Pearl River-Xijiang Economic Zone and Its Influencing Factors

    Shiyin, Chen / Xuebiao, Wu / Zhiyu, Ma / Jinyou, Bin

    Journal of resources and ecology. 2022 Apr. 27, v. 13, no. 3

    2022  

    Abstract: Cultivated land pressure is often used to reflect the shortage of cultivated land resources. By using the methods of the Cultivated Land Pressure Index, coefficient of variation and cold-hot spot analysis, this paper analyzes the spatial-temporal ... ...

    Abstract Cultivated land pressure is often used to reflect the shortage of cultivated land resources. By using the methods of the Cultivated Land Pressure Index, coefficient of variation and cold-hot spot analysis, this paper analyzes the spatial-temporal differentiation pattern and dynamic change processes of cultivated land pressure in the counties of the Pearl River-Xijiang Economic Zone from 2008 to 2017, and measures the factors which influence cultivated land pressure by using Principal Component Analysis. The results show that the cultivated land pressure in the Pearl River-Xijiang Economic Zone has been in a “high pressure” state, and the Cultivated Land Pressure Index has been rising continuously from 2008 to 2017. The coefficient of variation of the Cultivated Land Pressure Index in the Pearl River-Xijiang Economic Zone and various prefecture-level cities is fluctuating and rising, which indicates that the overall spatial differences in the cultivated land pressure in this region are expanding and polarization is obvious. In addition, the area where the municipal district of the provincial capital city is located is the core area of urban development and also the area with the greatest cultivated land pressure. The spatial pattern of cultivated land pressure cold-hot spots in the Pearl River-Xijiang Economic Zone is obviously heterogeneous, in which the Pearl River Economic Zone is the main hot spot gathering area and the Xijiang Economic Zone is the main cold spot gathering area. Farmers' income, investment in fixed assets, GDP, population and other socio-economic factors are the main factors driving the changes in the cultivated land pressure in the Pearl River-Xijiang Economic Zone. Furthermore, farming production factors, such as the multiple cropping index and grain yield per unit area, will also have an important impact on the changes in the cultivated land pressure.
    Keywords agricultural land ; cold ; ecology ; grain yield ; principal component analysis ; rivers ; urban development
    Language English
    Dates of publication 2022-0427
    Size p. 407-416.
    Publishing place Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences
    Document type Article
    ZDB-ID 2630108-8
    ISSN 1674-764X
    ISSN 1674-764X
    DOI 10.5814/j.issn.1674-764x.2022.03.006
    Database NAL-Catalogue (AGRICOLA)

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  4. Article: Temporal and Spatial Characteristics and Optimization of the Intensive Use of Cultivated Land in Maoming City

    Shiyin, Chen / Zhiyu, Ma

    Journal of resources and ecology. 2020 Oct. 27, v. 11, no. 6

    2020  

    Abstract: Improving the level of intensive cultivated land use is an important measure to ensure food security and promote the sustainable development of the regional society and economy. Based on data from the statistical yearbook of Maoming City and its counties ...

    Abstract Improving the level of intensive cultivated land use is an important measure to ensure food security and promote the sustainable development of the regional society and economy. Based on data from the statistical yearbook of Maoming City and its counties and districts from 2005 to 2018 and the land use change database of Maoming City for 2018, this study constructed an evaluation index system for four aspects: cultivated land use intensity, cultivated land use degree, cultivated land output benefit and cultivated land sustainable use status. The level of intensive use of cultivated land in Maoming City from 2004 to 2017 was evaluated by AHP, the range method and the comprehensive evaluation model, and its temporal and spatial characteristics were evaluated. The results revealed three major points. (1) The intensive use of cultivated land in Maoming City in the past 14 years was good, and its level showed an overall upward trend, with the intensive use degree of cultivated land rising from 0.4045 in 2004 to 1.3148 in 2017. (2) The levels of intensive use of cultivated land in each county and district of Maoming City were generally on the rise, with no significant differences between them. However, according to the regional distribution, the intensive use level of cultivated land was highest in Maonan District, while it was relatively low in Dianbai County. The largest increase in the level of cultivated land intensive use was in Gaozhou, and the smallest was in Dianbai County. (3) According to the existing problems of cultivated land utilization in Maoming City, combined with the current international and domestic measures to effectively improve the level of intensive use of cultivated land, four suggestions are put forward: to improve the efficiency of cultivated land utilization and effectively protect basic farmland; to improve the overall urban planning and rationally adjust the layout of construction land; to raise farmers' awareness of the intensive use of cultivated land; and to increase agricultural investment and improve agricultural infrastructure.
    Keywords agricultural land ; databases ; ecology ; food security ; infrastructure ; land use change ; models ; sustainable development
    Language English
    Dates of publication 2020-1027
    Size p. 598-605.
    Publishing place Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences
    Document type Article
    Note NAL-AP-2-clean
    ZDB-ID 2630108-8
    ISSN 1674-764X
    ISSN 1674-764X
    DOI 10.5814/j.issn.1674-764x.2020.06.007
    Database NAL-Catalogue (AGRICOLA)

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  5. Article ; Online: IdentPMP

    Xinyi Liu / Yueyue Shen / Youhua Zhang / Fei Liu / Zhiyu Ma / Zhenyu Yue / Yi Yue

    PeerJ, Vol 9, p e

    identification of moonlighting proteins in plants using sequence-based learning models

    2021  Volume 11900

    Abstract: Background A moonlighting protein refers to a protein that can perform two or more functions. Since the current moonlighting protein prediction tools mainly focus on the proteins in animals and microorganisms, and there are differences in the cells and ... ...

    Abstract Background A moonlighting protein refers to a protein that can perform two or more functions. Since the current moonlighting protein prediction tools mainly focus on the proteins in animals and microorganisms, and there are differences in the cells and proteins between animals and plants, these may cause the existing tools to predict plant moonlighting proteins inaccurately. Hence, the availability of a benchmark data set and a prediction tool specific for plant moonlighting protein are necessary. Methods This study used some protein feature classes from the data set constructed in house to develop a web-based prediction tool. In the beginning, we built a data set about plant protein and reduced redundant sequences. We then performed feature selection, feature normalization and feature dimensionality reduction on the training data. Next, machine learning methods for preliminary modeling were used to select feature classes that performed best in plant moonlighting protein prediction. This selected feature was incorporated into the final plant protein prediction tool. After that, we compared five machine learning methods and used grid searching to optimize parameters, and the most suitable method was chosen as the final model. Results The prediction results indicated that the eXtreme Gradient Boosting (XGBoost) performed best, which was used as the algorithm to construct the prediction tool, called IdentPMP (Identification of Plant Moonlighting Proteins). The results of the independent test set shows that the area under the precision-recall curve (AUPRC) and the area under the receiver operating characteristic curve (AUC) of IdentPMP is 0.43 and 0.68, which are 19.44% (0.43 vs. 0.36) and 13.33% (0.68 vs. 0.60) higher than state-of-the-art non-plant specific methods, respectively. This further demonstrated that a benchmark data set and a plant-specific prediction tool was required for plant moonlighting protein studies. Finally, we implemented the tool into a web version, and users can use it freely through the ...
    Keywords Prediction tool ; Plant moonlighting protein ; eXtreme gradient boosting ; Benchmark data set ; Medicine ; R
    Subject code 580
    Language English
    Publishing date 2021-08-01T00:00:00Z
    Publisher PeerJ Inc.
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  6. Article ; Online: Green Banana Maturity Classification and Quality Evaluation Using Hyperspectral Imaging

    Xuan Chu / Pu Miao / Kun Zhang / Hongyu Wei / Han Fu / Hongli Liu / Hongzhe Jiang / Zhiyu Ma

    Agriculture, Vol 12, Iss 530, p

    2022  Volume 530

    Abstract: Physiological maturity of bananas is of vital importance in determination of their quality and marketability. This study assessed, with the use of a Vis/NIR hyperspectral imaging (400–1000 nm), the feasibility in differentiating six maturity levels ( ... ...

    Abstract Physiological maturity of bananas is of vital importance in determination of their quality and marketability. This study assessed, with the use of a Vis/NIR hyperspectral imaging (400–1000 nm), the feasibility in differentiating six maturity levels (maturity level 2, 4, and 6 to 9) of green dwarf banana and characterizing their quality changes during maturation. Spectra were extracted from three zones (pedicel, middle and apex zone) of each banana finger, respectively. Based on spectra of each zone, maturity identification models with high accuracy (all over 91.53% in validation set) were established by partial least squares discrimination analysis (PLSDA) method with raw spectra. A further generic PLSDA model with an accuracy of 94.35% for validation was created by the three zones’ spectra pooled to omit the effect of spectra acquisition position. Additionally, a spectral interval was selected to simplify the generic PLSDA model, and an interval PLSDA model was built with an accuracy of 85.31% in the validation set. For characterizing some main quality parameters (soluble solid content, SSC; total acid content, TA; chlorophyll content and total chromatism, ΔE*) of banana, full-spectra partial least squares (PLS) models and interval PLS models were, respectively, developed to correlate those parameters with spectral data. In full-spectra PLS models, high coefficients of determination (R 2 ) were 0.74 for SSC, 0.68 for TA, and fair of 0.42 as well as 0.44 for chlorophyll and ΔE*. The performance of interval PLS models was slightly inferior to that of the full-spectra PLS models. Results suggested that models for SSC and TA had an acceptable predictive ability (R 2 = 0.64 and 0.59); and models for chlorophyll and ΔE* (R 2 = 0.34 and 0.30) could just be used for sample screening. Visualization maps of those quality parameters were also created by applying the interval PLS models on each pixel of the hyperspectral image, the distribution of quality parameters in which were basically consistent with the actual ...
    Keywords hyperspectral image ; green banana ; maturity level differentiation ; quality detection ; PLS ; Agriculture (General) ; S1-972
    Subject code 571
    Language English
    Publishing date 2022-04-01T00:00:00Z
    Publisher MDPI AG
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  7. Article ; Online: Efficient Extraction and Structural Characterization of Hemicellulose from Sugarcane Bagasse Pith

    Yitong Xie / Xin Guo / Zhiyu Ma / Jingwei Gong / Haisong Wang / Yanna Lv

    Polymers, Vol 12, Iss 3, p

    2020  Volume 608

    Abstract: The aim of this study was to investigate the ultrasound-assisted alkaline extraction process and structural properties of hemicellulose from sugarcane bagasse pith. Response surface model (RSM) was established in order to optimize the extraction ... ...

    Abstract The aim of this study was to investigate the ultrasound-assisted alkaline extraction process and structural properties of hemicellulose from sugarcane bagasse pith. Response surface model (RSM) was established in order to optimize the extraction conditions for the highest hemicellulose yield based on the single-factor experiments. A maximum total hemicellulose yield of 23.05% was obtained under the optimal conditions of ultrasonic treatment time of 28 min, KOH mass concentration of 3.7%, and extraction temperature of 53 °C, and it evidently increased 3.24% compared without ultrasound-assisted extraction. The obtained hemicellulose was analyzed by Fourier transform infrared (FT-IR) spectroscopy. The monosaccharide composition and average molecular weight of hemicellulose were characterized by using ion chromatography (IC) and gel permeation chromatography (GPC). The results indicated that xylose was dominant component in water-soluble hemicellulose (WH, 69.05%) and alkali-soluble hemicellulose (AH, 85.83%), respectively. Furthermore, the monosaccharides(otherwise xylose) and uronic acids contents of WH were higher than that of AH. Weight average molecular weight of WH was 29923 g/mol, lower than that of AH (74872 g/mol). These results indicate that ultrasonic-assisted alkaline extraction is an efficient approach for the separation of hemicellulose from sugarcane bagasse pith.
    Keywords sugarcane bagasse pith ; hemicellulose ; ultrasound-assisted alkaline extraction ; response surface methodology ; structural properties ; Organic chemistry ; QD241-441
    Subject code 660
    Language English
    Publishing date 2020-03-01T00:00:00Z
    Publisher MDPI AG
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  8. Article ; Online: IL-32 Promotes the Radiosensitivity of Esophageal Squamous Cell Carcinoma Cell through STAT3 Pathway

    Zhiyu Ma / Zhen Dong / Dingyue Yu / Mingchen Mu / Wanwen Feng / Jiayi Guo / Beibei Cheng / Jiayou Guo / Jianxin Ma

    BioMed Research International, Vol

    2021  Volume 2021

    Abstract: Objective. This study is set out to determine the relationship between IL-32 and radiosensitivity of esophageal squamous cell carcinoma (ESCC). Methods. Western blot was adopted for measuring IL-32 expression in Eca-109 and TE-10 cells. Eca-109 and TE-10 ...

    Abstract Objective. This study is set out to determine the relationship between IL-32 and radiosensitivity of esophageal squamous cell carcinoma (ESCC). Methods. Western blot was adopted for measuring IL-32 expression in Eca-109 and TE-10 cells. Eca-109 and TE-10 cells with interference or overexpression of IL-32 were treated with the presence or absence of X-ray irradiation. Then, the use of CCK8 assay was to detect proliferation ability, and effects of IL-32 expression on radiosensitivity of ESCC were tested by colony formation assay. The cell apoptosis was detected using flow cytometry. STAT3 and p-STAT expression, and apoptotic protein Bax were detected by western blot. Results. Colony formation assay and CCK8 assay showed that compared with the NC group without treatment, the growth of the ESCC cells, that is Eca-109 and TE-10, was significantly inhibited in the OE+IR group with highly expressed IL-32 and irradiation. In flow cytometry analysis, in Eca-109 and TE-10 cells, highly expressed IL-32 combined with irradiation significantly increased apoptosis compared with the control group. Highly expressed IL-32 has a synergistic effect with irradiation, inhibiting STAT3 and p-STAT3 expression and increasing apoptotic protein Bax expression. Conclusion. IL-32 can improve the radiosensitivity of ESCC cells by inhibiting the STAT3 pathway. Therefore, IL-32 can be used as a new therapeutic target to provide a new attempt for radiotherapy of ESCC.
    Keywords Medicine ; R
    Subject code 616
    Language English
    Publishing date 2021-01-01T00:00:00Z
    Publisher Hindawi Limited
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  9. Article ; Online: Endoplasmic Reticulum Stress Cooperates in Silica Nanoparticles-Induced Macrophage Apoptosis via Activation of CHOP-Mediated Apoptotic Signaling Pathway

    Fenglei Chen / Jiaqi Jin / Jiahui Hu / Yujing Wang / Zhiyu Ma / Jinlong Zhang

    International Journal of Molecular Sciences, Vol 20, Iss 23, p

    2019  Volume 5846

    Abstract: While silica nanoparticles (SiNPs) have wide applications, they inevitably increase atmospheric particulate matter and human exposure to this nanomaterial. Numerous studies have focused on how to disclose SiNP toxicity and on understanding its toxic ... ...

    Abstract While silica nanoparticles (SiNPs) have wide applications, they inevitably increase atmospheric particulate matter and human exposure to this nanomaterial. Numerous studies have focused on how to disclose SiNP toxicity and on understanding its toxic mechanisms. However, there are few studies in the literature reporting the interaction between endoplasmic reticulum (ER) stress and SiNP exposure, and the corresponding detailed mechanisms have not been clearly determined. In this study, CCK-8 and flow cytometry assays demonstrated that SiNPs gradually decreased cell viability and increased cell apoptosis in RAW 264.7 macrophage cells in dose- and time-dependent manners. Western blot analysis showed that SiNPs significantly activated ER stress by upregulating GRP78, CHOP, and ERO1α expression. Meanwhile, western blot analysis also showed that SiNPs activated the mitochondrial-mediated apoptotic signaling pathway by upregulating BAD and Caspase-3, and downregulating the BCL-2/BAX ratio. Moreover, 4-phenylbutyrate (4-PBA), an ER stress inhibitor, significantly decreased GRP78, CHOP, and ERO1α expression, and inhibited cell apoptosis in RAW 264.7 macrophage cells. Furthermore, overexpression of CHOP significantly enhanced cell apoptosis, while knockdown of CHOP significantly protected RAW 264.7 macrophage cells from apoptosis induced by SiNPs. We found that the CHOP-ERO1α-caspase-dependent apoptotic signaling pathway was activated by upregulating the downstream target protein ERO1α and caspase-dependent mitochondrial-mediated apoptotic signaling pathway by upregulating Caspase-3 and downregulating the ratio of BCL-2/BAX. In summary, ER stress participated in cell apoptosis induced by SiNPs and CHOP regulated SiNP-induced cell apoptosis, at least partly, via activation of the CHOP-ERO1α-caspase apoptotic signaling pathway in RAW 264.7 macrophage cells.
    Keywords silica nanoparticles ; endoplasmic reticulum stress ; apoptosis ; chop ; Biology (General) ; QH301-705.5 ; Chemistry ; QD1-999
    Subject code 570
    Language English
    Publishing date 2019-11-01T00:00:00Z
    Publisher MDPI AG
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  10. Article: Developmental changes in the role of gonadotropin-inhibitory hormone (GnIH) and its receptors in the reproductive axis of male Xiaomeishan pigs

    Zheng, Lucheng / Juan Su / Mengmeng Jin / Rui Fang / Tingting Guo / Yuanlong Hou / Zhihai Lei / Zhiyu Ma

    Animal reproduction science. 2015 Mar., v. 154

    2015  

    Abstract: Gonadotropin-inhibitory hormone (GnIH), a key regulator of vertebrate reproduction, was identified in the Japanese quail in 2000, and RFamide-related peptide-3 (RFRP-3) was found to be a mammalian GnIH ortholog. To further determine its role in the ... ...

    Abstract Gonadotropin-inhibitory hormone (GnIH), a key regulator of vertebrate reproduction, was identified in the Japanese quail in 2000, and RFamide-related peptide-3 (RFRP-3) was found to be a mammalian GnIH ortholog. To further determine its role in the reproductive system of male Xiaomeishan pigs, we systematically investigated changes in GnIH and its receptors (GPR147 and GPR74) during the development of the reproductive axis of male pigs. We also investigated the direct effect of RFRP-3 on the synthesis and secretion of testosterone in Leydig cells in vitro. The expression patterns of GnIH in the reproductive axis of male pigs at different stages of development (postnatal 3, 30, 60, 90, and 120D) were studied using semiquantitative RT-PCR and immunohistochemistry. Our results show that hypothalamic, pituitary and testicular levels of GnIH and its receptors mRNA significantly changed on postnatal day 30 and postnatal day 90. The immunoreactivities of the GnIH proteins were mainly localized to the spermatogenic cells, sustentacular cells and interstitial cells of the testis throughout sexual development. It was confirmed that different doses of GnIH/RFRP-3 inhibited the release and synthesis of testosterone, and impacted on the gene expression of 3β-hydroxysteroid dehydrogenase (3β-HSD) and P450, enzymes that play a key role in the synthesis of testosterone. Together, this research provides molecular and morphological data on the regulation of GnIH in the reproductive development of male pigs.
    Keywords Coturnix japonica ; developmental stages ; enzymes ; gene expression ; immunohistochemistry ; Leydig cells ; males ; messenger RNA ; receptors ; reproduction ; reverse transcriptase polymerase chain reaction ; secretion ; sexual development ; swine ; testosterone
    Language English
    Dates of publication 2015-03
    Size p. 113-120.
    Publishing place Elsevier B.V.
    Document type Article
    ZDB-ID 429674-6
    ISSN 1873-2232 ; 0378-4320
    ISSN (online) 1873-2232
    ISSN 0378-4320
    DOI 10.1016/j.anireprosci.2015.01.004
    Database NAL-Catalogue (AGRICOLA)

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