LIVIVO - The Search Portal for Life Sciences

zur deutschen Oberfläche wechseln
Advanced search

Search results

Result 1 - 10 of total 4340

Search options

  1. Article ; Online: PU-GAT

    Xuan Deng / Cheng Zhang / Jian Shi / Zizhao Wu

    Graphical Models, Vol 130, Iss , Pp 101201- (2023)

    Point cloud upsampling with graph attention network

    2023  

    Abstract: ... we propose PU-GAT, a novel 3D point cloud upsampling method that leverages graph attention networks to learn ...

    Abstract Point cloud upsampling has been extensively studied, however, the existing approaches suffer from the losing of structural information due to neglect of spatial dependencies between points. In this work, we propose PU-GAT, a novel 3D point cloud upsampling method that leverages graph attention networks to learn structural information over the baselines. Specifically, we first design a local–global feature extraction unit by combining spatial information and position encoding to mine the local spatial inter-dependencies across point features. Then, we construct an up-down-up feature expansion unit, which uses graph attention and GCN to enhance the ability of capturing local structure information. Extensive experiments on synthetic and real data have shown that our method achieves superior performance against previous methods quantitatively and qualitatively.
    Keywords Machine learning ; 3D vision ; Point cloud analysis ; Point cloud upsampling ; Science ; Q ; Technology (General) ; T1-995
    Subject code 006
    Language English
    Publishing date 2023-12-01T00:00:00Z
    Publisher Elsevier
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    More links

    Kategorien

  2. Article ; Online: Rapid classification and identification of chemical compositions of Pu-zhi-hui-ling decoction by UHPLC-Q-Orbitrap HRMS.

    Shao, Jia / Zheng, Yanxue / Wang, Yuanyuan / Li, Guohui / Wei, Jinxia / Cheng, Wenbo / Li, Yubo

    Natural product research

    2024  , Page(s) 1–10

    Abstract: Pu-zhi-hui-ling decoction (PZHLD) is a traditional Chinese medicine (TCM) formula for the treatment ...

    Abstract Pu-zhi-hui-ling decoction (PZHLD) is a traditional Chinese medicine (TCM) formula for the treatment of Alzheimer's disease (AD), but its chemical composition has not been reported. In this study, we aimed to establish a mass spectrometry (MS) analysis method for rapid classification and identification of the chemical constituents in PZHLD. The sample was analysed by ultrahigh-performance liquid chromatography coupled to quadrupole Orbitrap high-resolution mass spectrometry (UHPLC-Q-Orbitrap HRMS). The chemical constituents of PZHLD were identified based on accurate MS data, fragmentation characteristics of MS/MS, and reference information described in the literature. A total of 123 chemical constituents were identified. In addition, we summarised the fragmentation pathways of the chemical constituents in PZHLD. Our finding might lay the foundation for the further pharmacodynamic study and clinical application of PZHLD.
    Language English
    Publishing date 2024-01-03
    Publishing country England
    Document type Journal Article
    ZDB-ID 2185747-7
    ISSN 1478-6427 ; 1478-6419
    ISSN (online) 1478-6427
    ISSN 1478-6419
    DOI 10.1080/14786419.2023.2299302
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  3. Article ; Online: Selective Separation of U(VI) from Pu(IV) by 2,9-Diamide-1,10-phenanthroline Ligands at High Acidity: Extraction and Coordination Chemistry.

    Liu, Feng / Xiu, Tao-Yuan / Shehzad, Hamza / Jin, Wei / Huang, Zhi-Wei / Yang, Cheng-Chang / Fu, Xuan / Wang, Xin-Peng / Shi, Wei-Qun / Yuan, Li-Yong

    Inorganic chemistry

    2024  Volume 63, Issue 8, Page(s) 3859–3869

    Abstract: During the PUREX process, the separation between U(VI) and Pu(IV) is achieved by reducing Pu(IV ... to Pu(III), which is complicated and energy-consuming. To address this issue, we report here the first ... case of separation of U(VI) from Pu(IV) by ...

    Abstract During the PUREX process, the separation between U(VI) and Pu(IV) is achieved by reducing Pu(IV) to Pu(III), which is complicated and energy-consuming. To address this issue, we report here the first case of separation of U(VI) from Pu(IV) by
    Language English
    Publishing date 2024-02-09
    Publishing country United States
    Document type Journal Article
    ZDB-ID 1484438-2
    ISSN 1520-510X ; 0020-1669
    ISSN (online) 1520-510X
    ISSN 0020-1669
    DOI 10.1021/acs.inorgchem.3c04173
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  4. Article ; Online: PU.1 Regulates Cathepsin S Expression in Large Yellow Croaker (

    Zhang, Xiang-Yang / Zhuo, Xinyue / Cheng, Jie / Wang, Xiaohong / Liang, Kexin / Chen, Xinhua

    Frontiers in immunology

    2022  Volume 12, Page(s) 819029

    Abstract: ... of reactive oxygen species (ROS) and nitric oxide (NO). The transcription factor PU.1, crucial for the development ... of macrophages in mammals, was found to exist in two transcripts, PU.1a and PU.1b, in large yellow croaker, and ... constitutively expressed in LYC-FM and LYC-RM cells. The expression levels of PU.1a and PU.1b could be ...

    Abstract Different morphologies have been detected in teleost macrophages. In this study, two macrophage cell lines were sub-cloned from a large yellow croaker head kidney cell line, LYCK. One type of sub-cloned cells was fusiform but the other was round, named LYC-FM and LYC-RM cells respectively, based on their morphologies. Both types showed the characteristics of macrophages, including expression of macrophage-specific marker genes, possession of phagocytic and bactericidal activities, and production of reactive oxygen species (ROS) and nitric oxide (NO). The transcription factor PU.1, crucial for the development of macrophages in mammals, was found to exist in two transcripts, PU.1a and PU.1b, in large yellow croaker, and constitutively expressed in LYC-FM and LYC-RM cells. The expression levels of PU.1a and PU.1b could be upregulated by recombinant large yellow croaker IFN-γ protein (r
    MeSH term(s) Animals ; Cathepsins/genetics ; Cell Line ; Fish Diseases/genetics ; Fish Diseases/immunology ; Fish Diseases/microbiology ; Gene Expression Regulation ; Host-Pathogen Interactions/genetics ; Host-Pathogen Interactions/immunology ; Macrophages/immunology ; Macrophages/metabolism ; Perciformes/physiology ; Phagocytosis ; Promoter Regions, Genetic ; Protein Binding ; Proto-Oncogene Proteins/metabolism ; Reactive Oxygen Species/metabolism ; Trans-Activators/metabolism
    Chemical Substances Proto-Oncogene Proteins ; Reactive Oxygen Species ; Trans-Activators ; proto-oncogene protein Spi-1 ; Cathepsins (EC 3.4.-) ; cathepsin S (EC 3.4.22.27)
    Language English
    Publishing date 2022-01-05
    Publishing country Switzerland
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2606827-8
    ISSN 1664-3224 ; 1664-3224
    ISSN (online) 1664-3224
    ISSN 1664-3224
    DOI 10.3389/fimmu.2021.819029
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  5. Article: Flexible Temperature Sensor Utilizing MWCNT Doped PEG-PU Copolymer Nanocomposites.

    Kumar, Amit / Hsieh, Pen-Yi / Shaikh, Muhammad Omar / Kumar, R K Rakesh / Chuang, Cheng-Hsin

    Micromachines

    2022  Volume 13, Issue 2

    Abstract: In this study, polyethylene glycol (PEG) and polyurethane (PU)-based shape-stabilized copolymer ... nanocomposites were synthesized and utilized for developing low-cost and flexible temperature sensors. PU was ... MWCNT) as a conductive filler in the PEG-PU copolymer resulted in a nanocomposite with thermoresistive ...

    Abstract In this study, polyethylene glycol (PEG) and polyurethane (PU)-based shape-stabilized copolymer nanocomposites were synthesized and utilized for developing low-cost and flexible temperature sensors. PU was utilized as a flexible structural material for loading a thermosensitive phase change PEG polymer by means of physical mixing and chemical crosslinking. Furthermore, the introduction of multi-walled carbon nanotubes (MWCNT) as a conductive filler in the PEG-PU copolymer resulted in a nanocomposite with thermoresistive properties. MWCNT loading concentrations from 2 wt.% to 10 wt.% were investigated, to attain the optimum conductivity of the nanocomposite. Additionally, the effect of MWCNT loading concentration on the thermosensitive behavior of the nanocomposite was analyzed in the temperature range 25 °C to 50 °C. The thermosensitive properties of the physically mixed and crosslinked polymeric nanocomposites were compared by spin coating the respective nanocomposites on screen printed interdigitated (IDT) electrodes, to fabricate the temperature sensor. The chemically crosslinked MWCNT-PEG-PU polymeric nanocomposite showed an improved thermosensitive behavior in the range 25 °C to 50 °C, compared to the physically mixed nanocomposite. The detailed structural, morphological, thermal, and phase transition properties of the nanocomposites were investigated using XRD, FTIR, and DSC analysis. XRD and FTIR were used to analyze the crystallinity and PEG-PU bonding of the copolymer nanocomposite, respectively; while the dual phase (solid-liquid) transition of PEG was analyzed using DSC. The proposed nanocomposite-based flexible temperature sensor demonstrated excellent sensitivity, reliability and shows promise for a wide range of bio-robotic and healthcare applications.
    Language English
    Publishing date 2022-01-27
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2620864-7
    ISSN 2072-666X
    ISSN 2072-666X
    DOI 10.3390/mi13020197
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  6. Article ; Online: PTEN regulates hematopoietic lineage plasticity via PU.1-dependent chromatin accessibility.

    Xu, Zihan / He, Libing / Wu, Yilin / Yang, Lu / Li, Cheng / Wu, Hong

    Cell reports

    2023  Volume 42, Issue 8, Page(s) 112967

    Abstract: ... we find that PU.1 is an essential TF downstream of PTEN and that altering PU.1 levels can reprogram ...

    Abstract PTEN loss in fetal liver hematopoietic stem cells (HSCs) leads to alterations in myeloid, T-, and B-lineage potentials and T-lineage acute lymphoblastic leukemia (T-ALL) development. To explore the mechanism underlying PTEN-regulated hematopoietic lineage choices, we carry out integrated assay for transposase-accessible chromatin using sequencing (ATAC-seq), single-cell RNA-seq, and in vitro culture analyses using in vivo-isolated mouse pre-leukemic HSCs and progenitors. We find that PTEN loss alters chromatin accessibility of key lineage transcription factor (TF) binding sites at the prepro-B stage, corresponding to increased myeloid and T-lineage potentials and reduced B-lineage potential. Importantly, we find that PU.1 is an essential TF downstream of PTEN and that altering PU.1 levels can reprogram the chromatin accessibility landscape and myeloid, T-, and B-lineage potentials in Pten
    MeSH term(s) Animals ; Mice ; Cell Differentiation ; Cell Lineage ; Chromatin ; Hematopoietic Stem Cells/metabolism ; Protein Binding ; Trans-Activators/metabolism
    Chemical Substances Chromatin ; Trans-Activators ; Pten protein, mouse (EC 3.1.3.67)
    Language English
    Publishing date 2023-08-09
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2649101-1
    ISSN 2211-1247 ; 2211-1247
    ISSN (online) 2211-1247
    ISSN 2211-1247
    DOI 10.1016/j.celrep.2023.112967
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  7. Article ; Online: Haemonchus contortus HcL6 promoted the Th9 immune response in goat PBMCs by activating the STAT6/PU.1/NF-κB pathway.

    Liang, Meng / Zhang, Yang / Wang, Mingyue / Wen, Zhaohai / Chen, Cheng / Bu, Yongqian / Lu, Mingmin / Song, Xiaokai / Xu, Lixin / Li, Xiangrui / Yan, Ruofeng

    Veterinary research

    2023  Volume 54, Issue 1, Page(s) 80

    Abstract: ... by several cytokines. Key transcription factors, such as STAT6, STAT5, and PU.1, are known to enhance IL-9 expression ... pathway. Moreover, silencing STAT6, PU.1, and NF-κB was found to attenuate the Th9 immune response ...

    Abstract Th9 cells play a crucial role in parasite immunity. The development of Th9 cells is facilitated by several cytokines. Key transcription factors, such as STAT6, STAT5, and PU.1, are known to enhance IL-9 expression during the Th9 immune response. NF-κB-mediated transduction pathways participate in the induction of IL-9. In a previous study, we unveiled a unique ribosomal protein derived from Haemonchus contortus excretory-secretory proteins (HcESPs) that interact with host Th9 cells. In the present study, the effects of the Haemonchus contortus ribosomal protein L6 domain DE-containing protein (HcL6) on IL-9 secretion, Th9 differentiation, and IL-9 transcription were assessed by employing ELISA, flow cytometry, and qPCR methodologies. The observations revealed the transcriptional upregulation of several key genes within the Th9 immune response pathway. Moreover, silencing STAT6, PU.1, and NF-κB was found to attenuate the Th9 immune response. In this study, we unveiled the Th9 immune response-inducing capabilities of HcL6 and elucidated some of its underlying mechanisms. These findings suggest that HcL6 is an immunostimulatory antigen capable of inducing the Th9 immune response. These insights could prove instrumental in identifying potential candidate antigens for the development of immunoprophylactic strategies against H. contortus infections.
    MeSH term(s) Animals ; NF-kappa B ; Haemonchus ; Goats ; Interleukin-9/genetics ; Immunity
    Chemical Substances NF-kappa B ; Interleukin-9
    Language English
    Publishing date 2023-09-22
    Publishing country England
    Document type Journal Article
    ZDB-ID 1146298-x
    ISSN 1297-9716 ; 0928-4249
    ISSN (online) 1297-9716
    ISSN 0928-4249
    DOI 10.1186/s13567-023-01214-5
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  8. Article ; Online: Highly Stretchable PU Ionogels with Self-Healing Capability for a Flexible Thermoelectric Generator.

    Xu, Junhuai / Wang, Hui / Du, Xiaosheng / Cheng, Xu / Du, Zongliang / Wang, Haibo

    ACS applied materials & interfaces

    2021  Volume 13, Issue 17, Page(s) 20427–20434

    Abstract: ... stretchable polyurethane (PU) ionogel, composed of polyurethane main chains with double bonds in the side ... cross-linkers (BDB) and nonconjugated ionic liquids (EMIM:DCA). The PU ionogels with 30 wt % ILs have ...

    Abstract With the development of thermoelectric (TE) generator, the flexible, stretchable, self-healable, and wearable TE devices have aroused great interest. Therefore, we designed a self-healable and stretchable polyurethane (PU) ionogel, composed of polyurethane main chains with double bonds in the side, cross-linkers (BDB) and nonconjugated ionic liquids (EMIM:DCA). The PU ionogels with 30 wt % ILs have a high mechanical stretchability (300%), good tensile strength (1.61 MPa), and suitable Young's modulus (0.79 MPa). The proposed materials also exhibited an excellent ionic figure of merit (
    Language English
    Publishing date 2021-04-21
    Publishing country United States
    Document type Journal Article
    ISSN 1944-8252
    ISSN (online) 1944-8252
    DOI 10.1021/acsami.1c03328
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  9. Article: Anti-Oxidative Effect of Pu-erh Tea in Animals Trails: A Systematic Review and Meta-Analysis.

    Yang, Chiung-Ying / Hung, Kuang-Chen / Yen, Yea-Yin / Liao, Hung-En / Lan, Shou-Jen / Lin, Hsin-Cheng

    Foods (Basel, Switzerland)

    2022  Volume 11, Issue 9

    Abstract: ... anti-oxidative effect of pu-erh tea. Study authors have systemically searched seven databases up until 21 February 2020 ... In performing the literature search on the above-mentioned databases, the authors used keywords of pu-erh AND ... statistically significant effects of pu-erh tea on reducing serum MDA levels (SMD, −4.19; 95% CI, −5.22 to −3.15 ...

    Abstract This study adopted systematic literature review and meta-analysis methodology to explored anti-oxidative effect of pu-erh tea. Study authors have systemically searched seven databases up until 21 February 2020. In performing the literature search on the above-mentioned databases, the authors used keywords of pu-erh AND (superoxide dismutase OR glutathione peroxidase OR malondialdehyde). Results derived from meta-analyses showed statistically significant effects of pu-erh tea on reducing serum MDA levels (SMD, −4.19; 95% CI, −5.22 to −3.15; p < 0.001; I2 = 93.67%); increasing serum SOD levels (SMD, 2.41; 95% CI, 1.61 to 3.20; p < 0.001; I2 = 91.36%); and increasing serum GSH-Px levels (SMD, 4.23; 95% CI, 3.10 to 5.36; p < 0.001; I2 = 93.69%). Results from systematic review and meta-analyses validated that various ingredients found in pu-erh tea extracts had anti-oxidation effects, a long-held conventional wisdom with limited supporting evidence.
    Language English
    Publishing date 2022-05-04
    Publishing country Switzerland
    Document type Journal Article ; Review
    ZDB-ID 2704223-6
    ISSN 2304-8158
    ISSN 2304-8158
    DOI 10.3390/foods11091333
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  10. Article ; Online: Joint Determination of Reactor Antineutrino Spectra from ^{235}U and ^{239}Pu Fission by Daya Bay and PROSPECT.

    An, F P / Andriamirado, M / Balantekin, A B / Band, H R / Bass, C D / Bergeron, D E / Berish, D / Bishai, M / Blyth, S / Bowden, N S / Bryan, C D / Cao, G F / Cao, J / Chang, J F / Chang, Y / Chen, H S / Chen, S M / Chen, Y / Chen, Y X /
    Cheng, J / Cheng, Z K / Cherwinka, J J / Chu, M C / Classen, T / Conant, A J / Cummings, J P / Dalager, O / Deichert, G / Delgado, A / Deng, F S / Ding, Y Y / Diwan, M V / Dohnal, T / Dolinski, M J / Dolzhikov, D / Dove, J / Dvořák, M / Dwyer, D A / Erickson, A / Foust, B T / Gaison, J K / Galindo-Uribarri, A / Gallo, J P / Gilbert, C E / Gonchar, M / Gong, G H / Gong, H / Grassi, M / Gu, W Q / Guo, J Y / Guo, L / Guo, X H / Guo, Y H / Guo, Z / Hackenburg, R W / Hans, S / Hansell, A B / He, M / Heeger, K M / Heffron, B / Heng, Y K / Hor, Y K / Hsiung, Y B / Hu, B Z / Hu, J R / Hu, T / Hu, Z J / Huang, H X / Huang, J H / Huang, X T / Huang, Y B / Huber, P / Koblanski, J / Jaffe, D E / Jayakumar, S / Jen, K L / Ji, X L / Ji, X P / Johnson, R A / Jones, D C / Kang, L / Kettell, S H / Kohn, S / Kramer, M / Kyzylova, O / Lane, C E / Langford, T J / LaRosa, J / Lee, J / Lee, J H C / Lei, R T / Leitner, R / Leung, J K C / Li, F / Li, H L / Li, J J / Li, Q J / Li, R H / Li, S / Li, S C / Li, W D / Li, X N / Li, X Q / Li, Y F / Li, Z B / Liang, H / Lin, C J / Lin, G L / Lin, S / Ling, J J / Link, J M / Littenberg, L / Littlejohn, B R / Liu, J C / Liu, J L / Liu, J X / Lu, C / Lu, H Q / Lu, X / Luk, K B / Ma, B Z / Ma, X B / Ma, X Y / Ma, Y Q / Mandujano, R C / Maricic, J / Marshall, C / McDonald, K T / McKeown, R D / Mendenhall, M P / Meng, Y / Meyer, A M / Milincic, R / Mueller, P E / Mumm, H P / Napolitano, J / Naumov, D / Naumova, E / Neilson, R / Nguyen, T M T / Nikkel, J A / Nour, S / Ochoa-Ricoux, J P / Olshevskiy, A / Palomino, J L / Pan, H-R / Park, J / Patton, S / Peng, J C / Pun, C S J / Pushin, D A / Qi, F Z / Qi, M / Qian, X / Raper, N / Ren, J / Morales Reveco, C / Rosero, R / Roskovec, B / Ruan, X C / Searles, M / Steiner, H / Sun, J L / Surukuchi, P T / Tmej, T / Treskov, K / Tse, W-H / Tull, C E / Tyra, M A / Varner, R L / Venegas-Vargas, D / Viren, B / Vorobel, V / Wang, C H / Wang, J / Wang, M / Wang, N Y / Wang, R G / Wang, W / Wang, X / Wang, Y / Wang, Y F / Wang, Z / Wang, Z M / Weatherly, P B / Wei, H Y / Wei, L H / Wen, L J / Whisnant, K / White, C / Wilhelmi, J / Wong, H L H / Woolverton, A / Worcester, E / Wu, D R / Wu, F L / Wu, Q / Wu, W J / Xia, D M / Xie, Z Q / Xing, Z Z / Xu, H K / Xu, J L / Xu, T / Xue, T / Yang, C G / Yang, L / Yang, Y Z / Yao, H F / Ye, M / Yeh, M / Young, B L / Yu, H Z / Yu, Z Y / Yue, B B / Zavadskyi, V / Zeng, S / Zeng, Y / Zhan, L / Zhang, C / Zhang, F Y / Zhang, H H / Zhang, J W / Zhang, Q M / Zhang, S Q / Zhang, X / Zhang, X T / Zhang, Y M / Zhang, Y X / Zhang, Y Y / Zhang, Z J / Zhang, Z P / Zhang, Z Y / Zhao, J / Zhao, R Z / Zhou, L / Zhuang, H L / Zou, J H

    Physical review letters

    2022  Volume 128, Issue 8, Page(s) 81801

    Abstract: ... 239}Pu has been carried out by the Daya Bay and PROSPECT Collaborations. This Letter reports the level ... between the dominant ^{235}U and ^{239}Pu isotopes and improves the uncertainty of the ^{235}U spectral ... shape to about 3%. The ^{235}U and ^{239}Pu antineutrino energy spectra are unfolded from the jointly ...

    Abstract A joint determination of the reactor antineutrino spectra resulting from the fission of ^{235}U and ^{239}Pu has been carried out by the Daya Bay and PROSPECT Collaborations. This Letter reports the level of consistency of ^{235}U spectrum measurements from the two experiments and presents new results from a joint analysis of both data sets. The measurements are found to be consistent. The combined analysis reduces the degeneracy between the dominant ^{235}U and ^{239}Pu isotopes and improves the uncertainty of the ^{235}U spectral shape to about 3%. The ^{235}U and ^{239}Pu antineutrino energy spectra are unfolded from the jointly deconvolved reactor spectra using the Wiener-SVD unfolding method, providing a data-based reference for other reactor antineutrino experiments and other applications. This is the first measurement of the ^{235}U and ^{239}Pu spectra based on the combination of experiments at low- and highly enriched uranium reactors.
    Language English
    Publishing date 2022-03-11
    Publishing country United States
    Document type Journal Article
    ZDB-ID 208853-8
    ISSN 1079-7114 ; 0031-9007
    ISSN (online) 1079-7114
    ISSN 0031-9007
    DOI 10.1103/PhysRevLett.128.081801
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

To top