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  1. Article: Mechanical, microstructure and reaction process of calcium carbide slag-waste red brick powder based alkali-activated materials (CWAAMs)

    Cong, Peiliang / Cheng, Yaqian / Ge, Wanshuai / Zhang, Anyu

    Journal of cleaner production. 2022 Jan. 10, v. 331

    2022  

    Abstract: The paper attends to the utilization and performance improvement of waste red brick powder activated by calcium carbide slag (CCR). Therefore, the improvement of mechanical properties and microstructure of calcium carbide slag-waste red brick powder ... ...

    Abstract The paper attends to the utilization and performance improvement of waste red brick powder activated by calcium carbide slag (CCR). Therefore, the improvement of mechanical properties and microstructure of calcium carbide slag-waste red brick powder based alkali-activated materials (CWAAMs) by silica fume, composite activator and curing temperature was explored. Compressive strength tests, reaction process and microstructural analysis were performed including Fourier transform infrared, X-ray diffraction, scanning electron microscope-energy dispersive X-ray spectroscopy and thermogravimetry. The results showed that the compressive strength of CWAAMs increases by 8 times that of CWAAMs without silica fume, resulting from that silica fume increased the stacking speed and yield of C-S-H gel, making the structure of CWAAMs compact. Through the microscopic analysis of the reaction products in the reaction process, it is found that high alkali concentration and high-temperature curing conditions can promote the alkali-activated reaction to proceed faster. Furthermore, the 28d compressive strength of the CWAAMs reached 46.70 MPa curing at 100 °C for 1 d. Because the high concentration of Ca²⁺ and Na⁺ ions of the composite activator (CCR and NaOH solution) may produce synergistic effect curing at high temperature, forming massive C-S-H and (C, N)-A-S-H gel to fill the space between the particles, thus forming a more compact paste structure.
    Keywords Fourier transform infrared spectroscopy ; X-radiation ; X-ray diffraction ; bricks ; calcium ; calcium carbide ; compression strength ; gels ; microstructure ; silica ; slags ; synergism ; temperature ; thermogravimetry
    Language English
    Dates of publication 2022-0110
    Publishing place Elsevier Ltd
    Document type Article
    ISSN 0959-6526
    DOI 10.1016/j.jclepro.2021.129845
    Database NAL-Catalogue (AGRICOLA)

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  2. Article ; Online: Identification and characterization of Crocus sativus WRKY and its interacting MPK involved in crocins biosynthesis based on full-length transcriptome analysis

    Luo, Dong / Wang, Tengfei / Ye, Menglu / Zhu, Xiaolei / Cheng, Yaqian / Zheng, Ying / Xing, Bingcong / Shao, Qingsong

    Industrial Crops & Products. 2023 July, v. 197 p.116559-

    2023  

    Abstract: Crocus sativus, known as “plant gold”, is rich in carotenoids/apocarotenoids and possesses magnificent medicinal properties. Methyl jasmonate (MeJA) can remarkably enhance the production of carotenoids/apocarotenoids in C. sativus, but its regulatory ... ...

    Abstract Crocus sativus, known as “plant gold”, is rich in carotenoids/apocarotenoids and possesses magnificent medicinal properties. Methyl jasmonate (MeJA) can remarkably enhance the production of carotenoids/apocarotenoids in C. sativus, but its regulatory network remains little understood. Herein, MeJA-induced saffron was sequenced using the combination of third generation long-read and next-generation short-read technology. A total of 75,649 high-quality non-redundant full-length transcripts were generated. Functional annotation of differentially expressed genes (DEGs) showed that post-translational modification was crucial to MeJA-induced saffron. In addition, most of the transcripts encoding enzymes in pathways were up-regulated which in accord with the increasing tendency of crocins content. Then 40 CsWRKYs, 19 CsMPKs were identified with in-depth sequence analysis and established the co-expression network of MPK-WRKY-enzyme through mathematical calculation. Finally, RT-qPCR was performed and a total of 2 CsWRKYs (CsWRKY38, 34) and 1 CsMPK (CsMPK6) with significant correlation were identified as good candidates for carotenoids/apocarotenoids biosynthetic regulation. Our results provide inspiration for blank research on post-translational modification of crocins biosynthesis in C. sativus.
    Keywords Crocus sativus ; biosynthesis ; carotenoids ; gene expression regulation ; methyl jasmonate ; post-translational modification ; saffron ; sequence analysis ; transcriptomics ; CsMPK ; CsWRKY ; Carotenoids/apocarotenoids ; Biosynthetic pathway ; Jasmonates
    Language English
    Dates of publication 2023-07
    Publishing place Elsevier B.V.
    Document type Article ; Online
    ZDB-ID 1132158-1
    ISSN 1872-633X ; 0926-6690
    ISSN (online) 1872-633X
    ISSN 0926-6690
    DOI 10.1016/j.indcrop.2023.116559
    Database NAL-Catalogue (AGRICOLA)

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  3. Article ; Online: Bamboo leaf: A review of traditional medicinal property, phytochemistry, pharmacology, and purification technology.

    Cheng, Yaqian / Wan, Siqi / Yao, Linna / Lin, Ding / Wu, Tong / Chen, Yongjian / Zhang, Ailian / Lu, Chenfei

    Journal of ethnopharmacology

    2023  Volume 306, Page(s) 116166

    Abstract: Ethnopharmacological relevance: Bamboos are perennial evergreen plants that belong to the subfamily Bambusoideae of the true grass family Poaceae, with more than thousands of species distributed around the world. They are used as a traditional medicine ... ...

    Abstract Ethnopharmacological relevance: Bamboos are perennial evergreen plants that belong to the subfamily Bambusoideae of the true grass family Poaceae, with more than thousands of species distributed around the world. They are used as a traditional medicine with demonstrated effects of anti-oxidation, free radical scavenging, anti-inflammatory, liver protection and ameliorating cognitive deficits. Bamboo leaf is mainly used for the treatment of atherosclerotic, diabetic and nervous system diseases.
    Aim of the study: This review aims to provide up-to-date information on the traditional medicinal properties, phytochemistry, pharmacology, and purification technologies of bamboo leaf.
    Materials and methods: Relevant information on bamboo leaf was obtained by an online search of worldwide accepted scientific databases (Web of Science, ScienceDirect, Elsevier, SpringerLink, ACS Publications, Wiley Online Library and CNKI).
    Results: More than 100 chemical compounds, including flavonoids and flavonoid glycosides, volatile components, phenolic acids, polysaccharide, coenzyme Q10, phenylpropanoid and amino acids have been reported to be present. These compounds were usually extracted by column chromatography and membrane separation technologies. Preparative high performance liquid chromatography (PHPLC), high-speed counter-current chromatography (HSCCC), simulated moving bed chromatography (SMB) and dynamic axial compression chromatography (DAC) were the advanced separation technologies have been used to isolate C-glycosides from bamboo leaf flavonoid, the main bioactive ingredient of bamboo leaf. Currently, bamboo leaf is mainly used for the treatment of atherosclerotic, diabetic, hepatic diseases and nervous system related symptoms, which are attributed to the presence of bioactive components of bamboo leaf.
    Conclusions: Phytochemical and pharmacological analyses of bamboo leaf have been revealed in recent studies. However, most of the pharmacological studies on bamboo leaf have focused on bamboo leaf flavonoids. Further studies need to pay more attention to other phytochemical components of bamboo leaf. In addition, there is lack of sufficient clinical data and toxicity studies on bamboo leaf. Therefore, more clinical and toxicity researches on this plant and constituents are recommended.
    MeSH term(s) Ethnopharmacology/methods ; Medicine, Traditional/methods ; Phytotherapy ; Plant Leaves ; Technology ; Phytochemicals/pharmacology ; Plant Extracts/pharmacology
    Chemical Substances Phytochemicals ; Plant Extracts
    Language English
    Publishing date 2023-01-14
    Publishing country Ireland
    Document type Journal Article ; Review
    ZDB-ID 134511-4
    ISSN 1872-7573 ; 0378-8741
    ISSN (online) 1872-7573
    ISSN 0378-8741
    DOI 10.1016/j.jep.2023.116166
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article: Identification of water flow through non‐root soil macropores and along roots in shrub‐encroached grassland

    Hu, Xia / Li, Xiao‐Yan / Zhao, Yun‐Duo / Cheng, Ya‐Qian / Gao, Zhou / Yang, Zhi‐Guang

    European journal of soil science. 2022 July, v. 73, no. 4

    2022  

    Abstract: Identification of water flow through non‐root soil macropores and along roots using X‐ray computed tomography (CT) is still challenging because of limited methods to quantify roots and pore structures. This study selected shrub‐encroached grassland ... ...

    Abstract Identification of water flow through non‐root soil macropores and along roots using X‐ray computed tomography (CT) is still challenging because of limited methods to quantify roots and pore structures. This study selected shrub‐encroached grassland consisting of a mosaic of shrub patches and interspace grass patches and the original grassland as a control treatment. Twelve intact soil columns (0–30 cm deep) were excavated, which included four replicates each from the soils under the original grassland, the shrub patches and interspace grass patches. Three‐dimensional networks of soil macropores and roots were quantified using CT scanning and image analysis techniques, and active flow pathways were identified through KI tracing experiment using CT scanning. The results showed that the tracer depths of soils under the shrub patches and interspace grass patches were deeper than those of the original grassland, which was attributed to the well‐developed root system. The tracer volume density was significantly and positively correlated with soil macropore node density and root volume density (p < 0.05), and significantly and negatively correlated with root mean angle (p < 0.05). Soils under the shrub patches had lower tracer volume density than that under the interspace grass patches, which was attributed to the horizontal‐oriented roots under the shrub patches. The relative contribution of water flow along roots was larger than that through non‐root soil macropores 35 min after dye application. This provided direct evidence that shrub roots were the main pathway of macropore flow resulting in water flow into deep soil layers in the shrub‐encroached grassland. HIGHLIGHTS: The tracer depths of shrub‐encroached grassland were deep due to well‐developed root system. Shrub patches had low tracer volume density due to the horizontal‐oriented roots. The contribution of water flow along roots was larger than that through non‐root soil macropores. Shrub roots were the main pathway of water flow.
    Keywords X-radiation ; dyes ; grasses ; grasslands ; image analysis ; macropore flow ; macropores ; root systems ; shrubs ; tomography ; water flow
    Language English
    Dates of publication 2022-07
    Publishing place Blackwell Publishing Ltd
    Document type Article
    Note JOURNAL ARTICLE
    ZDB-ID 1191614-x
    ISSN 1365-2389 ; 1351-0754
    ISSN (online) 1365-2389
    ISSN 1351-0754
    DOI 10.1111/ejss.13260
    Database NAL-Catalogue (AGRICOLA)

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  5. Article ; Online: Isolation, Characterization of Bamboo Leaf Flavonoids by Size Exclusion Chromatography and Their Antioxidant Properties.

    Ye, Shuhuan / Pan, Fupeng / Yao, Linna / Fang, Hailing / Cheng, Yaqian / Zhang, Zixuan / Chen, Yongjian / Zhang, Ailian

    Chemistry & biodiversity

    2022  Volume 19, Issue 9, Page(s) e202200506

    Abstract: The utilization of bamboo industry exhibits varied but still needs to be improved. Bamboo leaf flavonoid (BLF) is an important resource of bamboo which has become a research focus. However, the isolation and purification techniques of four flavonoid ... ...

    Abstract The utilization of bamboo industry exhibits varied but still needs to be improved. Bamboo leaf flavonoid (BLF) is an important resource of bamboo which has become a research focus. However, the isolation and purification techniques of four flavonoid carbon glycosides (orientin, isoorientin, vitexin, and isovitexin) from BLF were still confronted with difficulties due to their complex and similar structures, which obstructed the development of bamboo utilization. In this article, a purification technology of four flavonoid carbon glycosides from BLF by Sephadex LH-20 was improved. The results were evaluated by HPLC and pharmacological activity. Specifically, the eluent, flow rate, and loading amount were investigated, respectively. According to the results, the eluent would dominate the isolation effect among three factors. High concentration of isoorientin and four flavonoid carbon glycosides would be obtained under the optimized condition (The eluent was 70 % methanol, the loading amount was 1.5 g, and the flow rate was 0.5 mL/min). Meanwhile, the link between flavonoid carbon glycosides content and their antioxidant activity in vitro was also revealed. Overall, the results suggested that BLF may serve as potential functional food additives and medicine.
    MeSH term(s) Antioxidants/chemistry ; Carbon ; Chromatography, Gel ; Chromatography, High Pressure Liquid ; Flavonoids/chemistry ; Glycosides ; Methanol ; Plant Extracts/chemistry ; Plant Leaves/chemistry
    Chemical Substances Antioxidants ; Flavonoids ; Glycosides ; Plant Extracts ; Carbon (7440-44-0) ; Methanol (Y4S76JWI15)
    Language English
    Publishing date 2022-08-08
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2139001-0
    ISSN 1612-1880 ; 1612-1872
    ISSN (online) 1612-1880
    ISSN 1612-1872
    DOI 10.1002/cbdv.202200506
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article: Amyloid Cascade Hypothesis for the Treatment of Alzheimer's Disease: Progress and Challenges.

    Wu, Tong / Lin, Ding / Cheng, Yaqian / Jiang, Senze / Riaz, Muhammad Waheed / Fu, Nina / Mou, Chenhao / Ye, Menglu / Zheng, Ying

    Aging and disease

    2022  Volume 13, Issue 6, Page(s) 1745–1758

    Abstract: The amyloid cascade hypothesis has always been a research focus in the therapeutic field of Alzheimer's disease (AD) since it was put forward. Numerous researchers attempted to find drugs for AD treatment based on this hypothesis. To promote the research ...

    Abstract The amyloid cascade hypothesis has always been a research focus in the therapeutic field of Alzheimer's disease (AD) since it was put forward. Numerous researchers attempted to find drugs for AD treatment based on this hypothesis. To promote the research of anti-AD drugs development, the current hypothesis and pathogenesis were reviewed with expounding of β-amyloid generation from its precursor protein and related transformations. Meanwhile, the present drug development strategies aimed at each stage in this hypothesis were also summarized. Several strategies especially immunotherapy showed the optimistic results in clinical trials, but only a small percentage of them eventually succeeded. In this review, we also tried to point out some common problems of drug development in preclinical and clinical studies which might be settled through multidisciplinary cooperation as well as the understanding that reinforces the amyloid cascade hypothesis.
    Language English
    Publishing date 2022-12-01
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2625789-0
    ISSN 2152-5250
    ISSN 2152-5250
    DOI 10.14336/AD.2022.0412
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: A novel ultrasensitive and fast aptamer biosensor of SEB based on AuNPs-assisted metal-enhanced fluorescence.

    Chang, Xueyu / Cheng, Yaqian / Wang, Xinke / Wang, Yonghui / Liu, Xueli / Han, Tie / Gao, Zhixian / Zhou, Huanying

    The Science of the total environment

    2022  Volume 858, Issue Pt 2, Page(s) 159977

    Abstract: A fluorescent biosensor strategy was developed in combination with immunomagnetic separation for rapid and sensitive detection of staphylococcal enterotoxin B (SEB). Magnetic nanoparticles (MNPs) modified with aptamer of SEB could capture the SEB. Then ... ...

    Abstract A fluorescent biosensor strategy was developed in combination with immunomagnetic separation for rapid and sensitive detection of staphylococcal enterotoxin B (SEB). Magnetic nanoparticles (MNPs) modified with aptamer of SEB could capture the SEB. Then the gold nanoparticles (AuNPs) fluorescent probe was added and a "sandwich structure" was formed between AuNPs, SEB and MNPs. The MNPs-SEB-AuNPs structure could be separated with an additional magnetic field, which resulted the lower signals of AuNPs fluorescent probe. In optimal conditions, the current method displayed a broad quantitative range from 100 to 10
    MeSH term(s) Gold/chemistry ; Fluorescent Dyes ; Metal Nanoparticles/chemistry ; Biosensing Techniques/methods ; Limit of Detection
    Chemical Substances Gold (7440-57-5) ; enterotoxin B, staphylococcal (39424-53-8) ; Fluorescent Dyes
    Language English
    Publishing date 2022-11-05
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 121506-1
    ISSN 1879-1026 ; 0048-9697
    ISSN (online) 1879-1026
    ISSN 0048-9697
    DOI 10.1016/j.scitotenv.2022.159977
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Genome-Wide Identification and Characterization of Members of the

    Wang, Chaojie / Li, Wenling / Chen, Fangyuan / Cheng, Yaqian / Huang, Xin / Zou, Bingxue / Wang, Yunli / Xu, Wenlong / Qu, Shuping

    International journal of molecular sciences

    2022  Volume 23, Issue 15

    Abstract: Ethylene biosynthesis and signal transduction play critical roles in plant sex differentiation. ...

    Abstract Ethylene biosynthesis and signal transduction play critical roles in plant sex differentiation.
    MeSH term(s) Cucurbita/genetics ; Cucurbita/metabolism ; Ethylenes/metabolism ; Flowers/metabolism ; Gene Expression Regulation, Plant
    Chemical Substances Ethylenes
    Language English
    Publishing date 2022-07-30
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2019364-6
    ISSN 1422-0067 ; 1422-0067 ; 1661-6596
    ISSN (online) 1422-0067
    ISSN 1422-0067 ; 1661-6596
    DOI 10.3390/ijms23158476
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  9. Article ; Online: MDL and RMSEP assessment of spectral pretreatments by adding different noises in calibration/validation datasets.

    Zhao, Na / Wu, Zhisheng / Cheng, Yaqian / Shi, Xinyuan / Qiao, Yanjiang

    Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy

    2016  Volume 163, Page(s) 20–27

    Abstract: In multivariate calibration, the optimization of pretreatment methods is usually according to the prediction error and there is a lack of robustness evaluation. This study investigated the robustness of pretreatment methods by adding different simulate ... ...

    Abstract In multivariate calibration, the optimization of pretreatment methods is usually according to the prediction error and there is a lack of robustness evaluation. This study investigated the robustness of pretreatment methods by adding different simulate noises to validation dataset, calibration and validation datasets, respectively. The root mean squared error of prediction (RMSEP) and multivariate detection limits (MDL) were simultaneously calculated to assess the robustness of different pretreatment methods. The result with two different near-infrared (NIR) datasets illustrated that Multiplicative Scatter Correction (MSC) and Standard normal variate (SNV) were substantially more robust to additive noise with smaller REMSP and MDL value.
    Language English
    Publishing date 2016-06-15
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 210413-1
    ISSN 1873-3557 ; 0370-8322 ; 0584-8539 ; 1386-1425
    ISSN (online) 1873-3557
    ISSN 0370-8322 ; 0584-8539 ; 1386-1425
    DOI 10.1016/j.saa.2016.03.017
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  10. Article ; Online: Synthesis of caffeic acid phenethyl ester derivatives, and their cytoprotective and neuritogenic activities in PC12 cells.

    Shi, Haiming / Xie, Dongsheng / Yang, Ruoling / Cheng, Yaqian

    Journal of agricultural and food chemistry

    2014  Volume 62, Issue 22, Page(s) 5046–5053

    Abstract: Twenty-one caffeic acid phenethyl ester (CAPE) derivatives were synthesized, and characterized by IR, HR-MS, (1)H and (13)C NMR analyses. All compounds were evaluated for their cytoprotective effects against H2O2-induced cytotoxicity and neuritogenic ... ...

    Abstract Twenty-one caffeic acid phenethyl ester (CAPE) derivatives were synthesized, and characterized by IR, HR-MS, (1)H and (13)C NMR analyses. All compounds were evaluated for their cytoprotective effects against H2O2-induced cytotoxicity and neuritogenic activities in the neurite outgrowth in PC12 cells. Compounds 1 and 20 exhibited stronger cytoprotective activities than their parent compound CAPE at 4 nM. Compounds 1, 4, 12 and 13 showed potential neuritogenic activities at 0.5 nM, while compounds 19 and 20 induced neurite outgrowth at 10 nM. The results from this study suggested that CAPE and its derivatives may be potential functional food ingredients for the prevention of neurodegenerative diseases.
    MeSH term(s) Animals ; Caffeic Acids/chemical synthesis ; Caffeic Acids/chemistry ; Caffeic Acids/pharmacology ; Hydrogen Peroxide/toxicity ; Molecular Structure ; Neurites/drug effects ; PC12 Cells ; Phenylethyl Alcohol/analogs & derivatives ; Phenylethyl Alcohol/chemical synthesis ; Phenylethyl Alcohol/chemistry ; Phenylethyl Alcohol/pharmacology ; Protective Agents/chemical synthesis ; Protective Agents/chemistry ; Protective Agents/pharmacology ; Rats ; Structure-Activity Relationship
    Chemical Substances Caffeic Acids ; Protective Agents ; Hydrogen Peroxide (BBX060AN9V) ; caffeic acid phenethyl ester (G960R9S5SK) ; Phenylethyl Alcohol (ML9LGA7468)
    Language English
    Publishing date 2014-06-04
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 241619-0
    ISSN 1520-5118 ; 0021-8561
    ISSN (online) 1520-5118
    ISSN 0021-8561
    DOI 10.1021/jf500464k
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