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  • Unknown  (101)
  • 1
    In: Frontiers in Plant Science, Frontiers Media SA, Vol. 14 ( 2023-7-17)
    Abstract: Rice ( Oryza sativa L.) is a staple food in many countries around the world, particularly in China. The production of rice is seriously affected by the bacterial leaf streak and rice blast, which can reduce rice yield or even cause it to fail to be harvested. In this study, susceptible material 58B was edited by CRISPR/Cas9, targeting a target of the Pi21 gene and a target of the effector-binding element (EBE) of the OsSULTR3;6 gene, and the mutants 58b were obtained by Agrobacterium-mediated method. The editing efficiency of the two targets in the T 0 generation was higher than 90.09%, the homozygous mutants were successfully selected in the T 0 generation, and the homozygous mutation rate of each target was higher than 26.67%. The expression of the edited pi21 and EBE of Ossultr3;6 was significantly reduced, and the expression of defense responsive genes was significantly upregulated after infected with rice blast. The lesion areas of rice blast and bacterial leaf streak were significantly reduced in 58b , and the resistance of both was effectively improved. Furthermore, the gene editing events did not affect the agronomic traits of rice. In this study, the resistance of 58b to rice blast and bacterial leaf streak was improved simultaneously. This study provides a reference for using Clustered Regularly Interspaced Short Palindromic Repeats/Cas9 (CRISPR/Cas9) to accelerate the improvement of rice varieties and the development of new materials for rice breeding.
    Type of Medium: Online Resource
    ISSN: 1664-462X
    Language: Unknown
    Publisher: Frontiers Media SA
    Publication Date: 2023
    detail.hit.zdb_id: 2687947-5
    detail.hit.zdb_id: 2613694-6
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  • 2
    In: Frontiers in Marine Science, Frontiers Media SA, Vol. 9 ( 2022-11-29)
    Abstract: The tiger puffer ( Takifugu rubripes ) is an important economic fish species in northern China. However, it is a warm-temperature species, and low winter temperatures can result in high mortality in aquaculture. Understanding the mechanisms of cold resistance in tiger puffers will thus provide critical information to help cope with winter cold. In this study, we performed transcriptome analysis of livers from puffer fish kept at different temperatures (18°C, 13°C, and 8°C) to identify the key pathways and genes involved in the response to low-temperature stress. We also detected serum levels of proteases, arginine, and proline to obtain further information on the response to cold adaption. Totals of 51, 942, and 195 differentially expressed genes were identified in the 18°C vs 13°C, 18°C vs 8°C, and 13°C vs 8°C groups, respectively. Pathway analysis showed that significantly enriched pathways were mainly related to digestion, metabolism, and environmental adaptation. Most genes in the pathways related to digestion and metabolism were down-regulated, while most genes in the pathways related to environmental adaptation were up-regulated. Serum levels of proteases were significantly lower in the low-temperature groups (13°C and 8°C) compared with the control group (18°C), while arginine and proline levels were significantly higher in the 8°C group compared with the other two groups. These results suggest that low temperature caused digestive and metabolic disorders, as well as adaptive changes to low temperature in tiger puffers. On this premise, we found that some up-regulated genes in the pancreatic secretion pathway, arginine and proline metabolism pathway, and circadian rhythm pathway played important roles in the survival, growth, and development of tiger puffers under low-temperature stress. The accumulation of arginine and proline can maintain metabolism and circulation and resist cold stress. The circadian rhythm is closely related to digestion and metabolism, which is an adaptive change and plays a positive role in the resistance to low temperature. The results of this study provide new insights and a theoretical basis for the study of cold tolerance in tiger puffers.
    Type of Medium: Online Resource
    ISSN: 2296-7745
    Language: Unknown
    Publisher: Frontiers Media SA
    Publication Date: 2022
    detail.hit.zdb_id: 2757748-X
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  • 3
    Online Resource
    Online Resource
    Institute of Electrical and Electronics Engineers (IEEE) ; 2021
    In:  IEEE Open Journal of Nanotechnology Vol. 2 ( 2021), p. 52-58
    In: IEEE Open Journal of Nanotechnology, Institute of Electrical and Electronics Engineers (IEEE), Vol. 2 ( 2021), p. 52-58
    Type of Medium: Online Resource
    ISSN: 2644-1292
    Language: Unknown
    Publisher: Institute of Electrical and Electronics Engineers (IEEE)
    Publication Date: 2021
    detail.hit.zdb_id: 3021720-9
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  • 4
    In: Frontiers in Aging Neuroscience, Frontiers Media SA, Vol. 14 ( 2023-1-10)
    Abstract: To investigate and contrast the effects of non-invasive brain stimulation (NIBS), including repeated transcranial magnetic stimulation (rTMS) and transcranial direct current stimulation (tDCS), on walking and balance ability in patients with Parkinson’s disease (PD). Methods The PubMed, Embase, Medline, Cochrane, CNKI, and Chinese WanFang databases were searched up to June 2022. Quality assessment was performed using the Cochrane Collaboration’s risk-of-bias guidelines, and the standardized mean differences (SMD) or mean differences (MD) for each outcome were calculated. Results Among 32 eligible studies, including 1,586 participants were analyzed in this meta-analysis. The results of the meta-analysis showed that NIBS was effective in improving UPDRS-III scores (MD = −2.07; 95% CI, −2.62 to −1.53; P & lt; 0.00001; I 2 = 6%) and variables associated with the ability of walk such as step width (SMD = 0.35; 95% CI, 0.16–0.55; P = 0.0005; I 2 = 38%), cadence (SMD = 0.3; 95% CI, 0.05 to 0.55; P = 0.02; I 2 = 25%), and 6MWT (MD = 62.86; 95% CI, 39.43–86.29; P & lt; 0.00001; I 2 = 0%). In subgroup analyses across intervention types, UPDRS-III scores (rTMS: MD = −2.54; 95% CI, −3.16 to −1.92; P & lt; 0.00001; I 2 = 0%; tDCS: MD = −1.20; 95% CI, −1.99 to −0.40; P = 0.003; I 2 = 0%) and TUGT time (rTMS: MD = −4.11; 95% CI, −4.74 to −3.47; P & lt; 0.00001; I 2 = 0%; tDCS: MD = −0.84; 95% CI, −1.48 to −0.21; P = 0.009; I 2 = 0%) significantly improved. Moreover, our results also showed that compared to tDCS, rTMS was more significant in improving UPDRS-III scores and TUGT time ( p & lt; 0.05). Conclusion NIBS benefits some walking ability variables but not balance ability in 36 patients with PD. The rTMS significantly improved UPDRS-III scores and TUGT time compared to tDCS. Further studies are needed to determine the optimal protocol and to illuminate effects based on the ideal target brain regions, stimulation intensity, timing, and type of intervention. Systematic review registration http://www.crd.york.ac.uk/PROSPERO/ , identifier CRD42022350782.
    Type of Medium: Online Resource
    ISSN: 1663-4365
    Language: Unknown
    Publisher: Frontiers Media SA
    Publication Date: 2023
    detail.hit.zdb_id: 2558898-9
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  • 5
    Online Resource
    Online Resource
    National Space Science Center, Chinese Academy of Sciences ; 2013
    In:  Chinese Journal of Space Science Vol. 33, No. 2 ( 2013), p. 176-
    In: Chinese Journal of Space Science, National Space Science Center, Chinese Academy of Sciences, Vol. 33, No. 2 ( 2013), p. 176-
    Type of Medium: Online Resource
    ISSN: 0254-6124 , 0254-6124
    Language: Unknown
    Publisher: National Space Science Center, Chinese Academy of Sciences
    Publication Date: 2013
    SSG: 16,12
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  • 6
    Online Resource
    Online Resource
    National Space Science Center, Chinese Academy of Sciences ; 2013
    In:  Chinese Journal of Space Science Vol. 33, No. 2 ( 2013), p. 182-
    In: Chinese Journal of Space Science, National Space Science Center, Chinese Academy of Sciences, Vol. 33, No. 2 ( 2013), p. 182-
    Type of Medium: Online Resource
    ISSN: 0254-6124 , 0254-6124
    Language: Unknown
    Publisher: National Space Science Center, Chinese Academy of Sciences
    Publication Date: 2013
    SSG: 16,12
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  • 7
    Online Resource
    Online Resource
    Frontiers Media SA ; 2022
    In:  Frontiers in Earth Science Vol. 9 ( 2022-2-2)
    In: Frontiers in Earth Science, Frontiers Media SA, Vol. 9 ( 2022-2-2)
    Abstract: Geothermal resources are clean energy with a great potential for development and utilization. Gaoyang geothermal field, located in the middle of the raised area in Hebei province, China, is one of the three major geothermal fields in the Xiong’an New Area. With the development of the Xiong’an New Area, this geothermal field has become a research hotspot. According to the latest survey, the bottom-hole temperature of the D34 and D35 areas in the north of Gaoyang geothermal field is 149°C and 116°C, respectively, which indicates favorable target areas for geothermal exploitation The circulation mechanism and chemical origins of geothermal fluid are unclear in the Gaoyang geothermal field, which hinders the evaluation of geothermal resources in this region. Therefore, water chemistry and isotopic studies were performed on the Gaoyang geothermal fluid to understand the genesis of the Gaoyang geothermal field. Piper trigram and Na-K-Mg software were also used to explore the genesis of the underground hot water. Combined with stratigraphy and geothermal geology, it can be concluded that the primary hydrochemical type of the Gaoyang geothermal field is Na-HCO 3 ·Cl. In the process of upward migration of geothermal water, leaching and cation alternating adsorption took place, and finally, high TDS geothermal water was formed. Our results are helpful for geothermal resource evaluation and utilization and provide scientific guidance for the sustainable development of geothermal resources.
    Type of Medium: Online Resource
    ISSN: 2296-6463
    Language: Unknown
    Publisher: Frontiers Media SA
    Publication Date: 2022
    detail.hit.zdb_id: 2741235-0
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  • 8
    Online Resource
    Online Resource
    Institute of Electrical and Electronics Engineers (IEEE) ; 2022
    In:  IEEE Geoscience and Remote Sensing Letters Vol. 19 ( 2022), p. 1-5
    In: IEEE Geoscience and Remote Sensing Letters, Institute of Electrical and Electronics Engineers (IEEE), Vol. 19 ( 2022), p. 1-5
    Type of Medium: Online Resource
    ISSN: 1545-598X , 1558-0571
    Language: Unknown
    Publisher: Institute of Electrical and Electronics Engineers (IEEE)
    Publication Date: 2022
    detail.hit.zdb_id: 2138738-2
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  • 9
    Online Resource
    Online Resource
    Institute of Electrical and Electronics Engineers (IEEE) ; 2023
    In:  IEEE Transactions on NanoBioscience Vol. 22, No. 1 ( 2023-1), p. 113-120
    In: IEEE Transactions on NanoBioscience, Institute of Electrical and Electronics Engineers (IEEE), Vol. 22, No. 1 ( 2023-1), p. 113-120
    Type of Medium: Online Resource
    ISSN: 1536-1241 , 1558-2639
    Language: Unknown
    Publisher: Institute of Electrical and Electronics Engineers (IEEE)
    Publication Date: 2023
    detail.hit.zdb_id: 2105885-4
    SSG: 12
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  • 10
    Online Resource
    Online Resource
    AccScience Publishing ; 1970
    In:  International Journal of Bioprinting Vol. 8, No. 1 ( 1970-01-01), p. 502-
    In: International Journal of Bioprinting, AccScience Publishing, Vol. 8, No. 1 ( 1970-01-01), p. 502-
    Abstract: The morphologies and structures of the scaffold have a significant influence on their mechanical and biological properties. In this work, different types of porous structures: Triply periodic minimal surface-Schwarz primitive (P), bodycentered cubic, and cubic pore-shaped (CPS) hydroxyapatite scaffolds with ~70% porosity were fabricated through digital light processing (DLP) 3D printing technology. The compressive properties and in vitro cell evaluations such as cell proliferation and attachment morphology of these scaffolds were systematically compared. The results showed that the CPS scaffolds exhibited the highest compressive strength (~22.5 MPa) and modulus (~400 MPa). In addition, the CPS scaffolds also performed the most active cell metabolisms as compared to other two structures, which may account for the larger pore size and smaller curvature of the substrate. This study provides a general guidance for the fabrication and selection of porous bone scaffolds processed by DLP 3D printing.
    Type of Medium: Online Resource
    ISSN: 2424-7723 , 2424-8002
    Language: Unknown
    Publisher: AccScience Publishing
    Publication Date: 1970
    detail.hit.zdb_id: 2834694-4
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