LIVIVO - The Search Portal for Life Sciences

zur deutschen Oberfläche wechseln
Advanced search

Search results

Result 1 - 10 of total 337748

Search options

  1. Article ; Online: Correction: Xiang, Y.M.; Pan, W.F.; Jiang, H.B.; Zhu, Y.F.; Li, H. Measuring Software Modularity Based on Software Networks.

    Xiang, Yiming / Pan, Weifeng / Jiang, Haibo / Zhu, Yunfang / Li, Hao

    Entropy (Basel, Switzerland)

    2020  Volume 22, Issue 8

    Abstract: The authors wish to make the following corrections to the paper [ ... ]. ...

    Abstract The authors wish to make the following corrections to the paper [...].
    Language English
    Publishing date 2020-08-10
    Publishing country Switzerland
    Document type Published Erratum
    ZDB-ID 2014734-X
    ISSN 1099-4300 ; 1099-4300
    ISSN (online) 1099-4300
    ISSN 1099-4300
    DOI 10.3390/e22080878
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  2. Article: Erratum: Zhao, J.; Shen, X.; Cao, X.; He, H.; Han, S.; Chen, Y.; Cui, C.; Wei, Y.; Wang, Y.; Li, D.; Zhu, Q.; Yin, H. HDAC4 Regulates the Proliferation, Differentiation and Apoptosis of Chicken Skeletal Muscle Satellite Cells.

    Zhao, Jing / Shen, Xiaoxu / Cao, Xinao / He, Haorong / Han, Shunshun / Chen, Yuqi / Cui, Can / Wei, Yuanhang / Wang, Yan / Li, Diyan / Zhu, Qing / Yin, Huadong

    Animals : an open access journal from MDPI

    2020  Volume 10, Issue 12

    Abstract: The authors wish to make the following corrections to their paper [ ... ]. ...

    Abstract The authors wish to make the following corrections to their paper [...].
    Language English
    Publishing date 2020-12-07
    Publishing country Switzerland
    Document type Published Erratum
    ISSN 2076-2615
    ISSN 2076-2615
    DOI 10.3390/ani10122322
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  3. Article ; Online: Effect of a-SiC x N y :H Encapsulation on the Stability and Photoluminescence Property of CsPbBr 3 Quantum Dots

    Zewen Lin / Zhenxu Lin / Yanqing Guo / Haixia Wu / Jie Song / Yi Zhang / Wenxing Zhang / Hongliang Li / Dejian Hou / Rui Huang

    Nanomaterials, Vol 13, Iss 1228, p

    2023  Volume 1228

    Abstract: The effect of a-SiC x N y :H encapsulation layers, which are prepared using the very-high-frequency ... in this study. The results show that a-SiCxNy:H encapsulation layers containing a high N content ... in the a-SiCxNy:H layer, the PL degradation of CsPbBr 3 QDs can be significantly minimized. As the N content ...

    Abstract The effect of a-SiC x N y :H encapsulation layers, which are prepared using the very-high-frequency plasma-enhanced chemical vapor deposition (VHF-PECVD) technique with SiH 4 , CH 4 , and NH 3 as the precursors, on the stability and photoluminescence of CsPbBr 3 quantum dots (QDs) were investigated in this study. The results show that a-SiCxNy:H encapsulation layers containing a high N content of approximately 50% cause severe PL degradation of CsPbBr 3 QDs. However, by reducing the N content in the a-SiCxNy:H layer, the PL degradation of CsPbBr 3 QDs can be significantly minimized. As the N content decreases from around 50% to 26%, the dominant phase in the a-SiCxNy:H layer changes from SiNx to SiCxNy. This transition preserves the inherent PL characteristics of CsPbBr 3 QDs, while also providing them with long-term stability when exposed to air, high temperatures (205 °C), and UV illumination for over 600 days. This method provided an effective and practical approach to enhance the stability and PL characteristics of CsPbBr 3 QD thin films, thus holding potential for future developments in optoelectronic devices.
    Keywords a-SiC x N y :H encapsulation ; CsPbBr 3 QDs ; stability ; photoluminescence ; Chemistry ; QD1-999
    Subject code 290
    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)

    More links

    Kategorien

  4. Article ; Online: Abnormalities of the Halogen Bonds in the Complexes between Y 2 CTe (Y = H, F, CH 3 ) and XF (X = F, Cl, Br, I)

    Ya-Qian Wang / Rui-Jing Wang / Qing-Zhong Li / Zhi-Wu Yu

    Molecules, Vol 27, Iss 8523, p

    2022  Volume 8523

    Abstract: In this work, the hydrogen bonds and halogen bonds in the complexes between Y 2 CTe (Y = H, F, CH 3 ... the strong inducing effect of F on the Te atom of Y 2 CTe. These findings provide a new perspective ...

    Abstract In this work, the hydrogen bonds and halogen bonds in the complexes between Y 2 CTe (Y = H, F, CH 3 ) and XF (X = F, Cl, Br, I) have been studied by quantum chemical calculations. We found three interesting abnormalities regarding the interactions. Firstly, the strength of halogen bonds increases in the order of IF < BrF < ClF < F 2 . Secondly, the halogen bonds formed by F 2 are very strong, with an interaction energy in the range between −199.8 and −233.1 kJ/mol. Thirdly, all the halogen bonds are stronger than the hydrogen bonds in the systems we examined. All these results are against the general understanding of halogen bonds. These apparent abnormal properties are reconciled with the high polarizability of the Te atom and the strong inducing effect of F on the Te atom of Y 2 CTe. These findings provide a new perspective on halogen bonds. Additionally, we also proposed bonding distance-based methods to compare the strength of halogen/hydrogen bonds formed between different donor atoms and the same acceptor atom.
    Keywords halogen bond ; hydrogen bond ; abnormality ; competition ; AIM ; NBO ; Organic chemistry ; QD241-441
    Subject code 540
    Language English
    Publishing date 2022-12-01T00:00:00Z
    Publisher MDPI AG
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    More links

    Kategorien

  5. Article ; Online: Review of the traditional uses, phytochemistry, and pharmacology of Curcuma wenyujin Y. H. Chen et C. Ling.

    Li, Yahui / Wu, Yingchun / Li, Yiming / Guo, Fujiang

    Journal of ethnopharmacology

    2020  Volume 269, Page(s) 113689

    Abstract: Ethnopharmacological relevance: Curcuma wenyujin is a multifunctional medicinal plant belonging to the ginger family (Zingiberaceae). It has been used to treat blood stasis, promote the flow of qi, dredge the meridians, and relieve pain for more than ... ...

    Abstract Ethnopharmacological relevance: Curcuma wenyujin is a multifunctional medicinal plant belonging to the ginger family (Zingiberaceae). It has been used to treat blood stasis, promote the flow of qi, dredge the meridians, and relieve pain for more than 1500 years. Its raw rhizomes, steamed rhizomes, and steamed roots constitute three herbal medicines currently listed in the Chinese Pharmacopoeia: pian-jiang-huang (), wen-e-zhu () and wen-yu-jin (), respectively.
    Aim of the review: The aim of this review was to comprehensively summarize the traditional use, phytochemistry, and pharmacology of C. wenyujin in order to provide theoretical support for its further investigation and utilization.
    Materials and methods: Multiple databases (Scifinder, CNKI, Web of Science, PubMed, Google Scholar, and Baidu Scholar) were searched. Some information was also obtained from the literatures on traditional Chinese medicine.
    Results: A total of 169 compounds have been isolated from C. wenyujin so far. Sesquiterpenoids are the major constituents and are crucial chemotaxonomic markers. Modern pharmacological studies and clinical trials have demonstrated that the extracts or active compounds from C. wenyujin have anti-inflammatory, antitumor, antioxidant, antibacterial, antiviral, and hepatoprotective properties.
    Conclusions: Until now, significant progress has been witnessed in phytochemistry and pharmacology of C. wenyujin. Some traditional uses of C. wenyujin have been supported by modern pharmacological studies. However, the establishment of quality control standards and additional clinical studies are warranted.
    MeSH term(s) Animals ; Antineoplastic Agents, Phytogenic/isolation & purification ; Antineoplastic Agents, Phytogenic/pharmacology ; Antineoplastic Agents, Phytogenic/therapeutic use ; Antioxidants/isolation & purification ; Antioxidants/pharmacology ; Antioxidants/therapeutic use ; Curcuma ; Drugs, Chinese Herbal/isolation & purification ; Drugs, Chinese Herbal/pharmacology ; Drugs, Chinese Herbal/therapeutic use ; Ethnopharmacology/methods ; Humans ; Medicine, Chinese Traditional/methods ; Phytochemicals/isolation & purification ; Phytochemicals/pharmacology ; Phytochemicals/therapeutic use ; Plant Extracts/isolation & purification ; Plant Extracts/pharmacology ; Plant Extracts/therapeutic use
    Chemical Substances Antineoplastic Agents, Phytogenic ; Antioxidants ; Drugs, Chinese Herbal ; Phytochemicals ; Plant Extracts ; turmeric extract (856YO1Z64F)
    Language English
    Publishing date 2020-12-10
    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.2020.113689
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  6. Article ; Online: Dietary multivalent anti-Helicobacter pylori immunoglobulin Y significantly increase the H. pylori eradication and improve the clinical symptoms in patients.

    Guo, Rong / Wu, Shan / Guan, Li / Xie, Yongmei / Yang, Xifei / Li, Zaixin / Zhang, Zhi

    Helicobacter

    2021  Volume 26, Issue 5, Page(s) e12843

    Abstract: ... of multivalent anti-H. pylori immunoglobulin Y (anti-Hp mIgY). Next, the biological activities of anti-Hp mIgY ... Background: The oral chicken immunoglobulin Y (IgY) as a novel model of immunotherapy to control ... Helicobacter pylori (H. pylori, Hp) infection has gained much interest in recent years. However, none of the current ...

    Abstract Background: The oral chicken immunoglobulin Y (IgY) as a novel model of immunotherapy to control Helicobacter pylori (H. pylori, Hp) infection has gained much interest in recent years. However, none of the current IgY therapies showed a total eradication of H. pylori on patients.
    Methods: In this report, the recombinant antigens of H. pylori, including UreB (1710 bp), BabA2 (1269 bp), and FlaA (399 bp), were, respectively, expressed and purified, and then mixed and subjected to immunize laying hens for the preparation of multivalent anti-H. pylori immunoglobulin Y (anti-Hp mIgY). Next, the biological activities of anti-Hp mIgY, including the recognition to antigens and the inhibition on H. pylori growth, were tested. Moreover, to perform a clinical trial, 94 Hp-infected patients, according to the values of
    Results: The anti-Hp mIgY could bind to recombinant antigens very well, and the titers of anti-Hp mIgY to UreB, Baba2, and FlaA, are 62.5, 125, and 250 μg/ml, respectively. The in vitro antibacterial test showed that the 2 mg/ml of anti-Hp mIgY could completely inhibit the H. pylori growth for 36 h. After a 2-week dietary of anti-Hp mIgY, the value of
    Conclusion: Two-week dietary of anti-Hp mIgY greatly improved the clinical symptoms and the quality of life of Hp-infected patients, and the H. pylori eradication rate reached up to 30.6%.
    MeSH term(s) Animals ; Breath Tests ; Chickens ; Female ; Helicobacter Infections/drug therapy ; Helicobacter pylori ; Humans ; Immunoglobulins ; Quality of Life
    Chemical Substances IgY ; Immunoglobulins
    Language English
    Publishing date 2021-08-11
    Publishing country England
    Document type Journal Article
    ZDB-ID 1330665-0
    ISSN 1523-5378 ; 1083-4389
    ISSN (online) 1523-5378
    ISSN 1083-4389
    DOI 10.1111/hel.12843
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  7. Article ; Online: The combined analgesic, sedative, and anti-gastric cancer mechanisms of Tinospora sagittata var. yunnanensis (S. Y. Hu) H. S. Lo based on integrated ethnopharmacological data.

    Wang, Qian-Qian / Sun, Qin-Rong / Ji, Xin-Ye / Tang, Yun / Zhang, Ke / Wang, Xiao-Qin / Li, Hong-Rui / Huang, Xiang-Zhong / Zhang, Bo

    Journal of ethnopharmacology

    2022  Volume 303, Page(s) 115990

    Abstract: ... sagittata var. yunnanensis (S. Y. Hu) H. S. Lo (TSY) is widely used to treat sore throat, stomach pain, bone ...

    Abstract Ethnopharmacology relevance: As a Yi medicine for eliminating wind to relieve pain, Tinospora sagittata var. yunnanensis (S. Y. Hu) H. S. Lo (TSY) is widely used to treat sore throat, stomach pain, bone and muscle injuries, and tumors; however, the material basis and mechanism of action remain unclear.
    Aim of the study: This study aims to investigate the potential active compounds of TSY and related pharmacological mechanisms against gastric cancer using a multitarget strategy.
    Materials and methods: The main chemical components of TSY were collected through a literature review and database searches. The components were further screened for ADMET properties, and their targets were predicted using network pharmacology (admetSAR) and substructure-drug-target network-based inference (SDTNBI) approaches in silico. The pharmacological mechanism of action of TSY extract for pain relief, sedation, and anti-gastric cancer activities were identified via in vivo and in vitro biochemical analyses.
    Results: Here, 28 chemical components were identified, 7 active compounds were selected, and 75 targets of TSY extract were predicted. A compound-target-disease network topological approach revealed that the predicted targets are highly related to the digestive system and nervous system. Network pharmacology results suggested that the anti-gastric cancer activity of TSY was highly correlated with its analgesic and sedative targets and MAPK. In vivo experiments confirmed that TSY extract not only reduced the number of voluntary activities in the mouse model but also exhibited a synergistic effect on sodium pentobarbital-induced sleep, reduced the number of mice exhibiting writhing responses to acetic acid, and increased the hot plate pain threshold of mice. Thus, TSY extract exhibits good analgesic and sedative effects. The TSY extract inhibited HGC-27 cell proliferation and induced apoptosis by regulating apoptotic proteins (BAX, BCL-2 and BCL-XL) in vitro.
    Conclusions: TSY exhibits combined analgesic, sedative, and anti-gastric cancer activities.
    Language English
    Publishing date 2022-12-09
    Publishing country Ireland
    Document type Journal Article
    ZDB-ID 134511-4
    ISSN 1872-7573 ; 0378-8741
    ISSN (online) 1872-7573
    ISSN 0378-8741
    DOI 10.1016/j.jep.2022.115990
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  8. Book ; Online: Two-dimensional rare-earth Janus 2$\textit{H}$-Gd$\textit{XY}$ ($\textit{X}$,$\textit{Y}$=Cl, Br, I, $\textit{X}$$\neq$$\textit{Y}$) monolayers

    Li, Cunquan / An, Yukai

    Bipolar ferro-magnetic semiconductors with high Curie temperature and large valley polarization

    2022  

    Abstract: ... applications for the nanoscale electronic devices. In this work, the Janus 2$H$-Gd$XY$ ($X$, $Y$=Cl, Br ...

    Abstract Two-dimensional (2D) ferromagnetic semiconductors show great interest due to their potential applications for the nanoscale electronic devices. In this work, the Janus 2$H$-Gd$XY$ ($X$, $Y$=Cl, Br, I, $X$$\neq$$Y$) monolayers with rare-earth element Gd (4$f^{7}$+5$d^{1}$) are predicted by the first-principles calculations. Small exfoliation energy of less than 0.25 J/m$^{2}$ and excellent dynamical/thermal stabilities can be confirmed for the Janus 2$H$-Gd$XY$ monolayers, which exhibit the bipolar magnetic semiconductor character with high Curie temperatures above 260 K and large spin-orbit coupling effect, and can be further transformed into the half-semiconductor phase under proper tensile strains (5-6\%). In addition, the in-plane magnetic anisotropy can be observed in the 2$H$-GdICl and 2$H$-GdIBr monolayers. On the contrary, the 2$H$-GdBrCl monolayer exhibits perpendicular magnetic anisotropy character, which originates from the competition between Gd-$p$/$d$ and halogen atom-$p$ orbitals. Calculated valley optical actions of the Janus 2$H$-Gd$XY$ monolayers exhibit distinguished valley-selective circular dichroisms, which is expected to realize the special valley excitation by polarized light. Spontaneously valley-Zeeman effect in the valance band for the Janus 2$H$-Gd$XY$ monolayers induces a giant valley splitting of 60-120 meV, which is also robust against various external biaxial strains. Tunable valley degree of freedom in the Janus 2$H$-Gd$XY$ systems is very necessary for encoding and processing information.

    Comment: 8 pages, 8 figures
    Keywords Condensed Matter - Materials Science
    Subject code 530
    Publishing date 2022-10-11
    Publishing country us
    Document type Book ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    More links

    Kategorien

  9. Article: Review of the traditional uses, phytochemistry, and pharmacology of Curcuma wenyujin Y. H. Chen et C. Ling

    Li, Yahui / Wu, Yingchun / Li, Yiming / Guo, Fujiang

    Journal of ethnopharmacology. 2021 Apr. 06, v. 269

    2021  

    Abstract: Curcuma wenyujin is a multifunctional medicinal plant belonging to the ginger family (Zingiberaceae). It has been used to treat blood stasis, promote the flow of qi, dredge the meridians, and relieve pain for more than 1500 years. Its raw rhizomes, ... ...

    Abstract Curcuma wenyujin is a multifunctional medicinal plant belonging to the ginger family (Zingiberaceae). It has been used to treat blood stasis, promote the flow of qi, dredge the meridians, and relieve pain for more than 1500 years. Its raw rhizomes, steamed rhizomes, and steamed roots constitute three herbal medicines currently listed in the Chinese Pharmacopoeia: pian-jiang-huang (片姜黄), wen-e-zhu (温莪术) and wen-yu-jin (温郁金), respectively.The aim of this review was to comprehensively summarize the traditional use, phytochemistry, and pharmacology of C. wenyujin in order to provide theoretical support for its further investigation and utilization.Multiple databases (Scifinder, CNKI, Web of Science, PubMed, Google Scholar, and Baidu Scholar) were searched. Some information was also obtained from the literatures on traditional Chinese medicine.A total of 169 compounds have been isolated from C. wenyujin so far. Sesquiterpenoids are the major constituents and are crucial chemotaxonomic markers. Modern pharmacological studies and clinical trials have demonstrated that the extracts or active compounds from C. wenyujin have anti-inflammatory, antitumor, antioxidant, antibacterial, antiviral, and hepatoprotective properties.Until now, significant progress has been witnessed in phytochemistry and pharmacology of C. wenyujin. Some traditional uses of C. wenyujin have been supported by modern pharmacological studies. However, the establishment of quality control standards and additional clinical studies are warranted.
    Keywords Curcuma wenyujin ; analgesic effect ; antioxidants ; blood stasis ; chemotaxonomy ; ginger ; medicinal plants ; plant biochemistry ; quality control ; sesquiterpenoids ; traditional medicine
    Language English
    Dates of publication 2021-0406
    Publishing place Elsevier B.V.
    Document type Article
    Note NAL-AP-2-clean
    ZDB-ID 134511-4
    ISSN 1872-7573 ; 0378-8741
    ISSN (online) 1872-7573
    ISSN 0378-8741
    DOI 10.1016/j.jep.2020.113689
    Database NAL-Catalogue (AGRICOLA)

    More links

    Kategorien

  10. Article: Eosin Y as a direct hydrogen-atom transfer photocatalyst for the C3-H acylation of quinoxalin-2(1H)-ones

    Ni, Hangcheng / Li, Yu / Shi, Xingzi / Pang, Yi / Jin, Congying / Zhao, Fei

    Tetrahedron letters. 2021 Mar. 30, v. 68

    2021  

    Abstract: Visible light promoted eosin Y catalyzed selective C3-H acylation of quinoxalin-2(1H)-ones has been ... developed in a green and sustainable manner. In contrast to the conventional anionic eosin Y-based ... photoredox process, neutral eosin Y acts as the actual catalyst, which was responsible for the hydrogen-atom ...

    Abstract Visible light promoted eosin Y catalyzed selective C3-H acylation of quinoxalin-2(1H)-ones has been developed in a green and sustainable manner. In contrast to the conventional anionic eosin Y-based photoredox process, neutral eosin Y acts as the actual catalyst, which was responsible for the hydrogen-atom transfer (HAT) process to generate the acyl radical with readily available aldehydes as the radical precursor.
    Keywords acylation ; eosin ; light ; photocatalysts ; redox reactions
    Language English
    Dates of publication 2021-0330
    Publishing place Elsevier Ltd
    Document type Article
    ZDB-ID 204287-3
    ISSN 1873-3581 ; 0040-4039
    ISSN (online) 1873-3581
    ISSN 0040-4039
    DOI 10.1016/j.tetlet.2021.152915
    Database NAL-Catalogue (AGRICOLA)

    More links

    Kategorien

To top