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Dai X, Li S, Song S, Chen M, Xu H, Li X, Zhang M, Zhang H, Sun H, Wang Z. Knowledge, attitudes, and practice toward tuberculosis in high school students in Qingdao, China. J Infect Dev Ctries 2024; 18:427-434. [PMID: 38635618 DOI: 10.3855/jidc.18312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Accepted: 09/05/2023] [Indexed: 04/20/2024] Open
Abstract
INTRODUCTION The purpose of this study is to assess the levels of knowledge, attitude, and practice (KAP) related to TB, and to analyze the differences among various demographic groups. METHODOLOGY A total of 621 students enrolled in Qingdao High School, coming from high TB burden settings. The cross-sectional study was conducted from May to July of 2022. Participants completed an online questionnaire. Differences in knowledge and practice based on participant characteristics were analyzed using the Wilcoxon rank test and Kruskal-Wallis rank test. Group differences were assessed using a rank-based analysis of variance. RESULTS The mean percentage of correct answers for TB knowledge and practice was 82.09% and 83.25%, respectively. Grade Three students showed higher knowledge and practice scores than Grade One or Grade Two students (t = -3.9935, p = 0.0002, t = 3.4537, p = 0.0018. 8.58 vs 7.94, 8.58 vs 8.23. t = 3.4562, p = 0.0018, t = -2.8688, p = 0.0128. 1.78 vs 1.61, 1.78 vs 1.64). A significant majority (78.42%) of students expressed fear of being affected by TB. 49.28% of the students would support and help TB patients. 88.08% of participants had heard of TB, with 72.94% learning about it at school, mainly through visual aids like posters. Information was predominantly obtained from online sources (websites, microblogs, WeChat, etc.). CONCLUSIONS It is recommended to develop a TB curriculum for lower-grade students to enhance awareness of TB prevention through various means, including the internet and social media.
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Affiliation(s)
- Xiaoqi Dai
- Municipal Centre of Disease Control and Prevention of Qingdao, Qingdao Institute of Prevention Medicine, Qingdao, China
| | - Shuo Li
- Department of Thoracic Surgery, The Affiliated Hospital of QingDao University, Qingdao, China
| | - Song Song
- Municipal Centre of Disease Control and Prevention of Qingdao, Qingdao Institute of Prevention Medicine, Qingdao, China
| | - Meng Chen
- Municipal Centre of Disease Control and Prevention of Qingdao, Qingdao Institute of Prevention Medicine, Qingdao, China
| | - Honghong Xu
- Municipal Centre of Disease Control and Prevention of Qingdao, Qingdao Institute of Prevention Medicine, Qingdao, China
| | - Xuekui Li
- Municipal Centre of Disease Control and Prevention of Qingdao, Qingdao Institute of Prevention Medicine, Qingdao, China
| | - Menghan Zhang
- Municipal Centre of Disease Control and Prevention of Qingdao, Qingdao Institute of Prevention Medicine, Qingdao, China
| | - Huaqiang Zhang
- Municipal Centre of Disease Control and Prevention of Qingdao, Qingdao Institute of Prevention Medicine, Qingdao, China
| | - Haiyan Sun
- Municipal Centre of Disease Control and Prevention of Qingdao, Qingdao Institute of Prevention Medicine, Qingdao, China
| | - Zhongdong Wang
- Municipal Centre of Disease Control and Prevention of Qingdao, Qingdao Institute of Prevention Medicine, Qingdao, China
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Wu T, Mou H, He Y, Liu Y, Song S, Zhao L, Guo L. Turbulence-resistant free space optical communication via chaotic block-matching and 3D filtering. Opt Express 2024; 32:11395-11405. [PMID: 38570988 DOI: 10.1364/oe.511548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Accepted: 02/29/2024] [Indexed: 04/05/2024]
Abstract
In this paper, we propose a chaotic block-matching and three-dimensional (C-BM3D) filtering algorithm to remove the noise and enhance the security in the turbulent channel of free space optical (FSO) communication. We experimentally demonstrate the performance of C-BM3D by comparing it with chaotic non-local means filtering (C-NLM), chaotic Gaussian filtering and chaotic Median filtering based on Log-normal and Gamma-Gamma turbulence models. The results show that the peak signal-to-noise ratios (PSNRs) of C-BM3D in the weak turbulence under Log-normal and Gamma-Gamma models are up to 96.2956 and 93.2853, respectively. The C-BM3D also achieves superior image similarity in Log-normal turbulent channel, with its structural similarity index measures (SSIMs) nearly equal to 1. Additionally, the signal-to-noise ratio (SNR) of C-BM3D ranks the highest, and its bit error rate (BER) improves by at least 15 dB compared to that of the other three algorithms. The experimental results indicate that the C-BM3D can be a good candidate for the next generation of FSO communication in security and turbulence resistance.
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Zhao L, Wang J, Liu Y, Wu J, Song S, Wu T, Guo L. Two-stage look-up-table-based 16QAM vector millimeter-wave signal generation and reception. Opt Lett 2024; 49:879-882. [PMID: 38359206 DOI: 10.1364/ol.513987] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2023] [Accepted: 01/13/2024] [Indexed: 02/17/2024]
Abstract
We propose a two-stage look-up table (LUT) scheme for a photonic 16 quadrature-amplitude-modulation (QAM) millimeter-wave (MMW) communication system. The first-stage LUT is used at the transmitter, which can eliminate complex computational processes and adaptively adjust the precoded amplitude values to achieve optimal performance without being affected by half-wave voltage variations. We have completed a signal transmission below the hard-decision forward error correction (HD-FEC) threshold of 3.8 × 10-3 at the baud rate of 2/4 GBaud for weak turbulence and 2 GBaud for medium turbulence free-space optics (FSO) channel transmission. The second-stage LUT is used for post-compensation at the receiver as a nonlinear scheme that records the average pattern-related distortion of the channel and mitigates transmission impairment through nonlinear post-compensation. With the help of the second-stage LUT, the sensitivity of the optical receiver is improved by 0.15 dB at a baud rate of 2 GBaud for medium turbulence FSO channel transmission. As the baud rate increases to 4 GBaud, the system's bit error ratio (BER) can reach the soft-decision forward error correction (SD-FEC) threshold of 4.2 × 10-2 only after applying the second-stage LUT.
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Wang W, Liu J, Yang L, Song S, Jiao N. A Catalytic Method to Activate Nitromethane by the Cooperation of Homo- and Heterogeneous Catalysis. Angew Chem Int Ed Engl 2024; 63:e202312354. [PMID: 38133603 DOI: 10.1002/anie.202312354] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Revised: 12/14/2023] [Accepted: 12/22/2023] [Indexed: 12/23/2023]
Abstract
The achievement of directly activating and utilizing bulk small molecules has remained a longstanding objective in the field of chemical synthesis. The present work reports a catalytic activation method for bulk chemical nitromethane (MeNO2 ). This method combines homogeneous Lewis acid with recyclable heterogeneous Brønsted acid catalysis, featuring practicality, sustainability, and low cost, thus solving the inherent drawbacks of previous Nef processes where stoichiometric reductants or activators were required. By combining the advantages of both homo- and heterogeneous catalysts, this chemistry may not only offer new opportunities for the further development of MeNO2 as a nitrogen source for organic synthesis, but also promote the catalysis design in synthetic chemistry.
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Affiliation(s)
- Weijin Wang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Xue Yuan Rd. 38, Beijing, 100191, China
| | - Jianzhong Liu
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Xue Yuan Rd. 38, Beijing, 100191, China
| | - Licheng Yang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Xue Yuan Rd. 38, Beijing, 100191, China
| | - Song Song
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Xue Yuan Rd. 38, Beijing, 100191, China
| | - Ning Jiao
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Xue Yuan Rd. 38, Beijing, 100191, China
- State Key Laboratory of Organometallic Chemistry, Chinese Academy of Sciences, Shanghai, 200032, China
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Song S, Cho B, Weiner AT, Nissen SB, Ojeda Naharros I, Sanchez Bosch P, Suyama K, Hu Y, He L, Svinkina T, Udeshi ND, Carr SA, Perrimon N, Axelrod JD. Protein phosphatase 1 regulates core PCP signaling. EMBO Rep 2023; 24:e56997. [PMID: 37975164 PMCID: PMC10702827 DOI: 10.15252/embr.202356997] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 10/24/2023] [Accepted: 10/26/2023] [Indexed: 11/19/2023] Open
Abstract
Planar cell polarity (PCP) signaling polarizes epithelial cells within the plane of an epithelium. Core PCP signaling components adopt asymmetric subcellular localizations within cells to both polarize and coordinate polarity between cells. Achieving subcellular asymmetry requires additional effectors, including some mediating post-translational modifications of core components. Identification of such proteins is challenging due to pleiotropy. We used mass spectrometry-based proximity labeling proteomics to identify such regulators in the Drosophila wing. We identified the catalytic subunit of protein phosphatase1, Pp1-87B, and show that it regulates core protein polarization. Pp1-87B interacts with the core protein Van Gogh and at least one serine/threonine kinase, Dco/CKIε, that is known to regulate PCP. Pp1-87B modulates Van Gogh subcellular localization and directs its dephosphorylation in vivo. PNUTS, a Pp1 regulatory subunit, also modulates PCP. While the direct substrate(s) of Pp1-87B in control of PCP is not known, our data support the model that cycling between phosphorylated and unphosphorylated forms of one or more core PCP components may regulate acquisition of asymmetry. Finally, our screen serves as a resource for identifying additional regulators of PCP signaling.
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Affiliation(s)
- Song Song
- Department of PathologyStanford University School of MedicineStanfordCAUSA
- Present address:
GenScriptPiscatawayNJUSA
| | - Bomsoo Cho
- Department of PathologyStanford University School of MedicineStanfordCAUSA
| | - Alexis T Weiner
- Department of PathologyStanford University School of MedicineStanfordCAUSA
| | - Silas Boye Nissen
- Department of PathologyStanford University School of MedicineStanfordCAUSA
- The Novo Nordisk Foundation Center for Stem Cell Medicine (reNEW)University of CopenhagenCopenhagenDenmark
| | - Irene Ojeda Naharros
- Department of OphthalmologyUniversity of California, San FranciscoSan FranciscoCAUSA
| | | | - Kaye Suyama
- Department of PathologyStanford University School of MedicineStanfordCAUSA
| | - Yanhui Hu
- Department of Genetics, Blavatnik Institute, Harvard Medical SchoolHarvard UniversityBostonMAUSA
| | - Li He
- Department of Genetics, Blavatnik Institute, Harvard Medical SchoolHarvard UniversityBostonMAUSA
- Present address:
School of Life SciencesUniversity of Science and Technology of ChinaHefeiChina
| | | | | | | | - Norbert Perrimon
- Department of Genetics, Blavatnik Institute, Harvard Medical SchoolHarvard UniversityBostonMAUSA
- Howard Hughes Medical InstituteBostonMAUSA
| | - Jeffrey D Axelrod
- Department of PathologyStanford University School of MedicineStanfordCAUSA
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Wang H, Li Z, Dai R, Jiao N, Song S. An efficient and mild oxidative approach from thiols to sulfonyl derivatives with DMSO/HBr. Chem Sci 2023; 14:13228-13234. [PMID: 38023524 PMCID: PMC10664549 DOI: 10.1039/d3sc04945k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Accepted: 10/30/2023] [Indexed: 12/01/2023] Open
Abstract
A mild and practical method for synthesizing sulfonyl derivatives, which have a wide range of applications in pharmaceuticals, materials, and organic synthesis, was described through the oxidative functionalization of thiols with DMSO/HBr. The simple conditions, low cost and ready availability of DMSO/HBr, as well as the versatility of the transformations, make this strategy very powerful in synthesizing a variety of sulfonyl derivatives including sulfonamides, sulfonyl fluorides, sulfonyl azides, and sulfonates. Mechanistic studies revealed that DMSO served as the terminal oxidant, and HBr acted as both a nucleophile and a redox mediator to transfer the oxygen atom.
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Affiliation(s)
- Hongye Wang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University Xue Yuan Rd 38 Beijing 100191 China +86-10-82805294
| | - Zhaoting Li
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University Xue Yuan Rd 38 Beijing 100191 China +86-10-82805294
| | - Rongheng Dai
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University Xue Yuan Rd 38 Beijing 100191 China +86-10-82805294
| | - Ning Jiao
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University Xue Yuan Rd 38 Beijing 100191 China +86-10-82805294
| | - Song Song
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University Xue Yuan Rd 38 Beijing 100191 China +86-10-82805294
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You Y, Han P, Song S, Luo W, Zhao S, Han K, Tian Y, Yan N, Li X. Distinct Selectivity Control in Solar-Driven Bio-Based α-Hydroxyl Acid Conversion: A Comparison of Pt Nanoparticles and Atomically Dispersed Pt on CdS. Angew Chem Int Ed Engl 2023; 62:e202306452. [PMID: 37699123 DOI: 10.1002/anie.202306452] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Revised: 09/11/2023] [Accepted: 09/12/2023] [Indexed: 09/14/2023]
Abstract
Solar-driven photocatalytic lignocellulose conversion is a promising strategy for the sustainable production of high-value chemicals, but selectivity control remains a challenging goal in this field. Here, we report efficient and selective conversion of lignocellulose-derived α-hydroxyl acids to tartaric acid derivatives, α-keto acids, and H2 using Pt-modified CdS catalysts. Pt nanoparticles on CdS selectively produce tartaric acid derivatives via C-C coupling, while atomically dispersed Pt on CdS switches product selectivity to the oxidation reaction to produce α-keto acids. The atomically dispersed Pt species stabilized by Pt-S bonds promote the activation of the hydroxyl group and thus switch product selectivity from tartaric acid derivatives to α-keto acids. A broad range of lignocellulose-derived α-hydroxyl acids was applied for preparing the corresponding tartaric acid derivatives and α-keto acids over the two Pt-modified CdS catalysts. This work highlights the unique performance of metal sulfides in coupling reactions and demonstrates a strategy for rationally tuning product selectivity by engineering the interaction between metal sulfide and cocatalyst.
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Affiliation(s)
- Yong You
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), State Key Laboratory of Chemical Engineering, Haihe Laboratory of Sustainable Chemical Transformations, Tianjin Key Laboratory of Applied Catalysis Science and Engineering, School of Chemical Engineering & Technology, Tianjin University, Tianjin, 300072, P. R. China
| | - Peijie Han
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, 117585, Singapore, Singapore
| | - Song Song
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), State Key Laboratory of Chemical Engineering, Haihe Laboratory of Sustainable Chemical Transformations, Tianjin Key Laboratory of Applied Catalysis Science and Engineering, School of Chemical Engineering & Technology, Tianjin University, Tianjin, 300072, P. R. China
- Zhejiang Shaoxing Research Institute of Tianjin University, Shaoxing, 312300, P. R. China
| | - Wei Luo
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), State Key Laboratory of Chemical Engineering, Haihe Laboratory of Sustainable Chemical Transformations, Tianjin Key Laboratory of Applied Catalysis Science and Engineering, School of Chemical Engineering & Technology, Tianjin University, Tianjin, 300072, P. R. China
| | - Shengnan Zhao
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), State Key Laboratory of Chemical Engineering, Haihe Laboratory of Sustainable Chemical Transformations, Tianjin Key Laboratory of Applied Catalysis Science and Engineering, School of Chemical Engineering & Technology, Tianjin University, Tianjin, 300072, P. R. China
| | - Kaijie Han
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), State Key Laboratory of Chemical Engineering, Haihe Laboratory of Sustainable Chemical Transformations, Tianjin Key Laboratory of Applied Catalysis Science and Engineering, School of Chemical Engineering & Technology, Tianjin University, Tianjin, 300072, P. R. China
| | - Ye Tian
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), State Key Laboratory of Chemical Engineering, Haihe Laboratory of Sustainable Chemical Transformations, Tianjin Key Laboratory of Applied Catalysis Science and Engineering, School of Chemical Engineering & Technology, Tianjin University, Tianjin, 300072, P. R. China
| | - Ning Yan
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, 117585, Singapore, Singapore
| | - Xingang Li
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), State Key Laboratory of Chemical Engineering, Haihe Laboratory of Sustainable Chemical Transformations, Tianjin Key Laboratory of Applied Catalysis Science and Engineering, School of Chemical Engineering & Technology, Tianjin University, Tianjin, 300072, P. R. China
- Zhejiang Shaoxing Research Institute of Tianjin University, Shaoxing, 312300, P. R. China
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Sun Q, Liu Y, Song S, Wu T, Zhao L, Guo L. Hybrid digital-analog FSO fronthaul system with channel-adaptive insertion of analog bandwidth. Opt Express 2023; 31:34542-34559. [PMID: 37859208 DOI: 10.1364/oe.501215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Accepted: 09/17/2023] [Indexed: 10/21/2023]
Abstract
With the arrival of the 5th generation mobile network, the number of user devices is increasing exponentially, and thus it is necessary to expand the capacity of transmission systems. In order to further improve the system spectral efficiency on the basis of existing mobile fronthaul devices, we propose a hybrid digital-analog fronthaul transmission system with adaptive insertion of analog bandwidth, which can dynamically change the position of inserted analog bandwidth based on the state information of free space optical (FSO) channel. We consider the effects of atmospheric attenuation and turbulence on the FSO channel and derive an analytical expression for the maximum analog signal bandwidth that can be inserted into the first null of the digital signal spectrum to meet BER requirement of 3.8 × 10-3. Through a comprehensive simulation, it is verified that the analog bandwidth is obtained by this expression can exactly represent the lower bound of the simulation results under weak turbulence condition. The obtained results show that the maximum insertable analog bandwidth beyond the spectral null of the digital signal can reach 10% of the digital signal bandwidth, even in the FSO link with a transmission distance of 0.5 km and attenuation factor of 8 dB/km.
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Wu Y, Song S, Shen Y. Characteristics of theory of mind impairment and its relationship with clinical symptoms and neurocognition in patients with schizophrenia. BMC Psychiatry 2023; 23:711. [PMID: 37784072 PMCID: PMC10544361 DOI: 10.1186/s12888-023-05224-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Accepted: 09/26/2023] [Indexed: 10/04/2023] Open
Abstract
BACKGROUND Schizophrenia (SCZ) is a mental disorder that can cause severe disability, including impairment of social cognition, which is considered a core feature of SCZ, and the Theory of Mind (ToM) is a core component of social cognition. Although many studies have confirmed the presence of ToM impairment in patients with SCZ, its characteristics in terms of different orders (first-order and second-order) and components remain unclear, and no studies have investigated the independent correlations between such impairment and clinical symptoms. Therefore, this study aimed to identify the characteristics of ToM impairment in patients with SCZ. METHODS This study included 30 patients with SCZ and 30 healthy controls who were matched for age, sex, and level of education. The clinical symptoms of the patients with SCZ were evaluated using the Positive and Negative Symptom Scale (PANSS), and the neurocognitive ability of the subjects was evaluated using the Trail Making Test, Symbol Coding Test, and Digit Span Test. The degree of ToM impairment of the subjects at different stages (first- and second-order) and for individual components was evaluated using the Yoni task. Latent profile analysis and network analysis were conducted to identify and analyze the potential ToM performance types, and independent correlations were assessed between ToM impairment and clinical symptoms. RESULTS The patients with SCZ exhibited significant first-order and second-order impairment (P < 0.05), and the second-order affective ToM component was mainly reflected by complex affective states (P = 0.003). The latent profile analysis revealed that ToM impairments in patients with SCZ could be classified into groups with complete, second-order, and comprehensive defects, whereas it was impossible to classify patients according to differences in the cognitive and affective ToM components. The Network analysis demonstrated that the cognitive component of ToM was associated with positive symptoms, whereas the affective ToM component was associated with negative symptoms. CONCLUSION Patients with SCZ exhibited differences in order levels and ToM impairments, as well as different defect types. In addition, cognitive and affective ToM components may be related to different psychotic symptoms; therefore, understanding these differences could promote the rehabilitation of patients with SCZ.
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Affiliation(s)
- Ying Wu
- School of Humanities and Social Sciences, Shanxi Medical University, No. 56 South Xinjian Road, Taiyuan, 030001, China.
| | - Song Song
- School of Humanities and Social Sciences, Shanxi Medical University, No. 56 South Xinjian Road, Taiyuan, 030001, China
| | - Yueqi Shen
- School of Humanities and Social Sciences, Shanxi Medical University, No. 56 South Xinjian Road, Taiyuan, 030001, China
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Song S, Cho B, Weiner AT, Nissen SB, Naharros IO, Bosch PS, Suyama K, Hu Y, He L, Svinkina T, Udeshi ND, Carr SA, Perrimon N, Axelrod JD. Protein phosphatase 1 regulates core PCP signaling. bioRxiv 2023:2023.09.12.556998. [PMID: 37745534 PMCID: PMC10515792 DOI: 10.1101/2023.09.12.556998] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/26/2023]
Abstract
PCP signaling polarizes epithelial cells within the plane of an epithelium. Core PCP signaling components adopt asymmetric subcellular localizations within cells to both polarize and coordinate polarity between cells. Achieving subcellular asymmetry requires additional effectors, including some mediating post-translational modifications of core components. Identification of such proteins is challenging due to pleiotropy. We used mass spectrometry-based proximity labeling proteomics to identify such regulators in the Drosophila wing. We identified the catalytic subunit of Protein Phosphatase1, Pp1-87B, and show that it regulates core protein polarization. Pp1-87B interacts with the core protein Van Gogh and at least one Serine/Threonine kinase, Dco/CKIε, that is known to regulate PCP. Pp1-87B modulates Van Gogh subcellular localization and directs its dephosphorylation in vivo. PNUTS, a Pp1 regulatory subunit, also modulates PCP. While the direct substrate(s) of Pp1-87B in control of PCP is not known, our data support the model that cycling between phosphorylated and unphosphorylated forms of one or more core PCP components may regulate acquisition of asymmetry. Finally, our screen serves as a resource for identifying additional regulators of PCP signaling.
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Affiliation(s)
- Song Song
- Department of Pathology, Stanford University School of Medicine, Stanford, CA 94305, USA
- Present Address: GenScript, 860 Centennial Avenue, Piscataway, NJ, 08854, USA
| | - Bomsoo Cho
- Department of Pathology, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Alexis T. Weiner
- Department of Pathology, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Silas Boye Nissen
- Department of Pathology, Stanford University School of Medicine, Stanford, CA 94305, USA
- The Novo Nordisk Foundation Center for Stem Cell Medicine (reNEW), University of Copenhagen, Blegdamsvej 3B, DK-2200 Copenhagen N, Denmark
| | - Irene Ojeda Naharros
- Department of Ophthalmology, University of California, San Francisco, San Francisco, CA 94143-3120, USA
| | - Pablo Sanchez Bosch
- Department of Pathology, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Kaye Suyama
- Department of Pathology, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Yanhui Hu
- Department of Genetics, Blavatnik Institute, Harvard Medical School, Harvard University, Boston, MA 02115, USA
| | - Li He
- Department of Genetics, Blavatnik Institute, Harvard Medical School, Harvard University, Boston, MA 02115, USA
- Present Address: School of Life Sciences, University of Science and Technology of China, Hefei 230027, China
| | | | | | | | - Norbert Perrimon
- Department of Genetics, Blavatnik Institute, Harvard Medical School, Harvard University, Boston, MA 02115, USA
- Howard Hughes Medical Institute, Boston, MA 02138, USA
| | - Jeffrey D. Axelrod
- Department of Pathology, Stanford University School of Medicine, Stanford, CA 94305, USA
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Song S, Lei L, Liu H, Yang F, Li N, Chen W, Peng J, Ren J. Impact of changing the prevalence of smoking, alcohol consumption and overweight/obesity on cancer incidence in China from 2021 to 2050: a simulation modelling study. EClinicalMedicine 2023; 63:102163. [PMID: 37662518 PMCID: PMC10468350 DOI: 10.1016/j.eclinm.2023.102163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 07/28/2023] [Accepted: 07/31/2023] [Indexed: 09/05/2023] Open
Abstract
Background Smoking, alcohol consumption and overweight/obesity are key cancer risk factors contributing to the cancer burden in China. We aimed to quantify the cancer burden in China associated with smoking, alcohol consumption and overweight/obesity, and estimate the potential effect for cancer prevention interventions under different scenarios. Methods We used a macro-simulation approach called Prevent Model to estimate for a 30-year study period (2021-2050) numbers and proportions of future avoidable cancer cases under different scenarios of reducing the prevalence of smoking, alcohol consumption and overweight/obesity in Chinese adults. Cancer incidence was predicted under three scenarios: elimination, ambitious target (between elimination and manageable target) and manageable target (from national policy or global action plan). Risk factor prevalence was obtained from China Chronic Disease and Risk Factor Surveillance, and cancer incidence data were derived from the China Cancer Registry Annual Report. Relative risks were obtained from several recent large-scale studies or high-quality meta-analysis. Population data were extracted from the China Population & Employment Statistical Yearbook, China Health Statistical Yearbook and World Population Prospects. Findings Estimates of the avoidable cancer burden varied with different scenarios. In the theoretical maximum intervention scenario, where the prevalence of smoking, alcohol consumption and overweight/obesity would be eliminated, 9.17% (males: 13.50%; females: 1.47%) of smoking-related cancer cases, 7.06% (males: 11.49%; females: 1.00%) of cancer cases related to alcohol consumption and 8.22% (males: 7.91%; females: 8.52%) of overweight/obesity-related cancer cases were estimated to be avoidable during 2021-2050. Other scenarios, with more moderate goals in the exposure prevalence of smoking, alcohol use and overweight/obesity were also found to be associated with substantial reductions in the future cancer burden. Interpretation Our results suggested that a substantial number of future cancer cases could be avoided in Chinese adults by reducing the prevalence of smoking, alcohol consumption and overweight/obesity. Funding National Science & Technology Fundamental Resources Investigation Program of China; Sanming Project of Medicine in Shenzhen.
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Affiliation(s)
- Song Song
- Office of Cancer Screening, National Cancer Center / National Clinical Research Center for Cancer / Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Lin Lei
- Department of Cancer Control and Prevention, Shenzhen Center for Chronic Disease Control, Shenzhen 518000, China
| | - Han Liu
- Office of Cancer Screening, National Cancer Center / National Clinical Research Center for Cancer / Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Fan Yang
- Office of Cancer Screening, National Cancer Center / National Clinical Research Center for Cancer / Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Ni Li
- Office of Cancer Screening, National Cancer Center / National Clinical Research Center for Cancer / Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Wanqing Chen
- Office of Cancer Screening, National Cancer Center / National Clinical Research Center for Cancer / Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Ji Peng
- Department of Cancer Control and Prevention, Shenzhen Center for Chronic Disease Control, Shenzhen 518000, China
| | - Jiansong Ren
- Office of Cancer Screening, National Cancer Center / National Clinical Research Center for Cancer / Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
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12
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Zong X, Ding Q, Liu X, Liu Q, Song S, Yan X, Zhang Y. Preventive Effect of 6-shogaol on D-galactosamine Induced Hepatotoxicity Through NF-?B/MAPK Signaling Pathway in Rats. Physiol Res 2023; 72:445-454. [PMID: 37795887 PMCID: PMC10634558 DOI: 10.33549/physiolres.935092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Accepted: 04/19/2023] [Indexed: 01/05/2024] Open
Abstract
This analysis aims to see whether 6-shogaol could protect rats against D-galactosamine (D-GalN)-induced Hepatotoxicity. The Wistar rats were divided into four groups (n=6). Group 1 received a standard diet, Group 2 received an oral administration of 6-shogaol (20 mg/kg b.wt), Group 3 received an intraperitoneal injection of D-GalN (400 mg/kg b.wt) on 21st day, and Group 4 received an oral administration of 6-shogaol (20mg/kg b.wt) for 21 days and D-GalN (400 mg/kg b.wt) injection only on 21st day. The hepatic marker enzymes activity, lipid peroxidative markers level increased significantly and antioxidant activity/level significantly reduced in D-GalN-induced rats. 6-shogaol Pretreatment effectively improves the above changes in D-GalN-induced rats. Further, inflammatory marker expression and MAPK signaling molecules were downregulated by 6-shogaol. These findings showed that 6-shogaol exerts hepatoprotective effects via the enhanced antioxidant system and attenuated the inflammation and MAPK signaling pathway in D-GalN-induced rats.
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Affiliation(s)
- X Zong
- Department of Clinical Laboratory, Baoding First Central Hospital, Baoding, Hebei province, China.
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13
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Yu B, Liu X, Guo L, Wei X, Song S. Fasys: Visible-Light-Based Communication and Positioning Services towards Smart Cities. Sensors (Basel) 2023; 23:6340. [PMID: 37514632 PMCID: PMC10384218 DOI: 10.3390/s23146340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 06/30/2023] [Accepted: 07/07/2023] [Indexed: 07/30/2023]
Abstract
Visible-light-based transmission application plays an important role in various types of sensor services for the Internet of Things (IoTs). However, in big data scenarios, current visible-light-based systems cannot achieve concurrent high-speed communication, low-speed communication, and positioning. Therefore, in this article, we propose a smart visible-light-based fusion applications system, named Fasys, to solve the above problem for the big data traffic with heterogeneity. Specifically, for low-speed data services, we propose a novel linear block coding and bit interleaving mechanism, which enhances the LED positioning accuracy and recovers the lost data bits in the interframe gap (IFG). For high-speed data services with traffic possessing burstiness, an elegant statistical reliability analysis framework in regard to latency is proposed based on martingale theory. The backlog martingale process is constructed. Leveraging stopping time theory, a tight upper bound of unreliability is obtained. An arrival abstraction and traffic allocation scheme is designed, which contributes to decouple the reliability requirement as the maximum supportable arrival load. Finally, we implement our Fasys system, and extensive experimental results show that our system can achieve consistent high-precision positioning and low-BER data communication for low-speed data services. And the proposed martingale-based traffic allocation scheme can achieve the provisioning of reliability in regard to the latency for high-speed data services.
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Affiliation(s)
- Baozhu Yu
- School of Information Science and Engineering, Shenyang Ligong University, Shenyang 110158, China
| | - Xiangyu Liu
- School of Information Science and Engineering, Shenyang Ligong University, Shenyang 110158, China
- Department of Computer Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Lei Guo
- School of Communication and Information Engineering, Chongqing University of Posts and Telecommunications, Chongqing 400065, China
- Hangzhou Institute of Advanced Technology, Hangzhou 310056, China
| | - Xuetao Wei
- Department of Computer Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Song Song
- School of Communication and Information Engineering, Chongqing University of Posts and Telecommunications, Chongqing 400065, China
- Institute of Intelligent Communications and Network Security, Chongqing University of Posts and Telecommunications, Chongqing 400065, China
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14
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Zhao W, Song S, Yan HF. [Determination of misoprostol in workplace air by high performance liquid chromatography]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2023; 41:457-460. [PMID: 37400409 DOI: 10.3760/cma.j.cn121094-20220424-00218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 07/05/2023]
Abstract
Objective: To establish a high performance liquid chromatography method for the determination of misoprostol in workplace air. Methods: From February to August 2021, the misoprostol in the workplace air was collected by glass fiber filter membrane, and theeluent was separated by C18 liquid chromatography column, determined by UV detector, and quantified by external standard method. Results: The quantitative lower limit of misoprostol determination method was 0.05 μg/ml, and the lowest quantitative concentration was 1.4 μg/m(3) (calculated by collecting 75 L air sample). The concentration of misoprostol has a good linear relationship between 0.05 to 10.00 μg/ml. The relative coefficient was 0.9998. The regression equation of the standard working curve was y=495759x-45257. The range of average recovery rates were from 95.5% to 102.8%. The intra-assay precision of the method was 1.2%-4.6%, and the inter-assay precision was 2.0%-5.9%. The samples could be stored stably for 7 days at 4 ℃. Conclusion: The high performance liquid chromatography method for the determination of misoprostol has high sensitivity, good specificity and simple procedure of sample pretreatment. It is suitable for the detection of misoprostol in the workplace air.
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Affiliation(s)
- W Zhao
- National Institute of Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention, Beijing 100050, China
| | - S Song
- National Institute of Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention, Beijing 100050, China
| | - H F Yan
- National Institute of Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention, Beijing 100050, China
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15
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Jiang C, Yuan Y, Gu B, Ahn E, Kim J, Feng D, Huang Q, Song S. Preoperative prediction of microvascular invasion and perineural invasion in pancreatic ductal adenocarcinoma with 18F-FDG PET/CT radiomics analysis. Clin Radiol 2023:S0009-9260(23)00219-2. [PMID: 37365115 DOI: 10.1016/j.crad.2023.05.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Revised: 04/23/2023] [Accepted: 05/13/2023] [Indexed: 06/28/2023]
Abstract
AIM To develop and validate a predictive model based on 2-[18F]-fluoro-2-deoxy-d-glucose (18F-FDG) positron-emission tomography (PET)/computed tomography (CT) radiomics features and clinicopathological parameters to preoperatively identify microvascular invasion (MVI) and perineural invasion (PNI), which are important predictors of poor prognosis in patients with pancreatic ductal adenocarcinoma (PDAC). MATERIALS AND METHODS Preoperative 18F-FDG PET/CT images and clinicopathological parameters of 170 patients in PDAC were collected retrospectively. The whole tumour and its peritumoural variants (tumour dilated with 3, 5, and 10 mm pixels) were applied to add tumour periphery information. A feature-selection algorithm was employed to mine mono-modality and fused feature subsets, then conducted binary classification using gradient boosted decision trees. RESULTS For MVI prediction, the model performed best on a fused subset of 18F-FDG PET/CT radiomics features and two clinicopathological parameters, with an area under the receiver operating characteristic curve (AUC) of 83.08%, accuracy of 78.82%, recall of 75.08%, precision of 75.5%, and F1-score of 74.59%. For PNI prediction, the model achieved best prediction results only on the subset of PET/CT radiomics features, with AUC of 94%, accuracy of 89.33%, recall of 90%, precision of 87.81%, and F1 score of 88.35%. In both models, 3 mm dilation on the tumour volume produced the best results. CONCLUSIONS The radiomics predictors from preoperative 18F-FDG PET/CT imaging exhibited instructive predictive efficacy in the identification of MVI and PNI status preoperatively in PDAC. Peritumoural information was shown to assist in MVI and PNI predictions.
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Affiliation(s)
- C Jiang
- Department of Nuclear Medicine, Fudan University Shanghai Cancer Center, Fudan University, Shanghai, China; Department of Nuclear Medicine, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Y Yuan
- Biomedical and Multimedia Information Technology Research Group, School of Computer Science, University of Sydney, Sydney, Australia
| | - B Gu
- Department of Nuclear Medicine, Fudan University Shanghai Cancer Center, Fudan University, Shanghai, China
| | - E Ahn
- Discipline of Information Technology, College of Science & Engineering, James Cook University, Australia
| | - J Kim
- Biomedical and Multimedia Information Technology Research Group, School of Computer Science, University of Sydney, Sydney, Australia
| | - D Feng
- Biomedical and Multimedia Information Technology Research Group, School of Computer Science, University of Sydney, Sydney, Australia
| | - Q Huang
- School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, China.
| | - S Song
- Department of Nuclear Medicine, Fudan University Shanghai Cancer Center, Fudan University, Shanghai, China.
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Yang J, Liu Z, Guo H, Reheman Z, Ye J, Song S, Wang N, Nie W, Nie J. Prevalence and influencing factors of anaemia among pregnant women in rural areas of Northwestern China. Public Health 2023; 220:50-56. [PMID: 37269588 DOI: 10.1016/j.puhe.2023.04.024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Revised: 03/22/2023] [Accepted: 04/26/2023] [Indexed: 06/05/2023]
Abstract
OBJECTIVES Anaemia during pregnancy is a significant public health problem that adversely impacts both the mother and foetus. However, the factors influencing maternal anaemia in deprived areas of Northwestern China have not yet been thoroughly investigated. This study aimed to describe the prevalence and potential influencing factors of anaemia among expectant mothers in rural areas of Northwestern China. STUDY DESIGN This was a cross-sectional survey. METHODS A cross-sectional survey of 586 expectant mothers was conducted to investigate the prevalence of anaemia, prenatal healthcare coverage, dietary diversity and nutrient supplementation intake. The study population was selected from the sample areas using a random sampling method. Data were collected through a questionnaire, and haemoglobin concentrations were measured by a capillary blood test. RESULTS The results show that 34.8% of the study population were anaemic, with 13% having moderate-to-severe anaemia. The results of the regression analysis showed that diet was not significantly associated with haemoglobin concentrations or the prevalence of anaemia. However, regular prenatal healthcare attendance was found to be an important influencing factor for both haemoglobin concentration (β = 3.67, P = 0.002) and the prevalence of anaemia (odds ratio = 0.59, P = 0.011). CONCLUSIONS Pregnant women receiving regular prenatal care were less likely to be anaemic; thus, it is essential to implement strategies to improve attendance at maternal public health services to reduce the prevalence of maternal anaemia.
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Affiliation(s)
- J Yang
- Center for Experimental Economics in Educational, Shaanxi Normal University, Xi'an, China.
| | - Z Liu
- Center for Experimental Economics in Educational, Shaanxi Normal University, Xi'an, China.
| | - H Guo
- School of Philosophy and Government, Shaanxi Normal University, Xian, China.
| | - Z Reheman
- Center for Experimental Economics in Educational, Shaanxi Normal University, Xi'an, China.
| | - J Ye
- Center for Experimental Economics in Educational, Shaanxi Normal University, Xi'an, China.
| | - S Song
- Center for Experimental Economics in Educational, Shaanxi Normal University, Xi'an, China.
| | - N Wang
- Center for Experimental Economics in Educational, Shaanxi Normal University, Xi'an, China.
| | - W Nie
- Center for Experimental Economics in Educational, Shaanxi Normal University, Xi'an, China.
| | - J Nie
- Center for Experimental Economics in Educational, Shaanxi Normal University, Xi'an, China.
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17
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Cao ZJ, Liu Y, Li J, Zeng Z, Song S, Qin W. First Report of Cobweb Disease in Auricularia cornea var. Li. Caused by Hypomyces mycophilus in China. Plant Dis 2023. [PMID: 37261877 DOI: 10.1094/pdis-09-22-2214-pdn] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Auricularia cornea var. Li. is a natural mutation strain of A. cornea which has been preferred by consumers for its white colour, good taste and pharmacological properties (Rebecca et al. 2020). In October 2021, a disease with symptoms similar to that of cobweb disease (Carrasco et al. 2017) was observed in A. cornea var. Li. in four mushroom farms in Fangshan District (115.83°E, 39.55°N), Beijing, China, infecting 20% of the fruiting bodies (Fig. 1A-D). White cottony mycelia formed typically on the casing soil and they gradually spread to the stipes and pileus, covering the whole fruiting body, which eventually died and lost commodity value. Cultures were obtained by aseptically transferring the diseased fruiting bodies onto potato dextrose agar (PDA); they were deposited in the culture collection (ID: JZBQA3) of the Beijing Academy of Agriculture and Forestry Sciences, China. The colonies were floccose with aerial mycelium white. Purplish grey diffusing pigments occasionally formed on the reverse side of the plate at 25 °C (Fig. 2A-B). Conidiophores arising in aerial mycelium, indefinite in length, branches septate, each cell producing denticulate conidiogenous loci, each denticle bearing a single conidium. Conidia mostly oblong to ellipsoidal, smooth, (9.0-)9.9-17.0(-18.0)×(6.0-)6.9-10.2 μm (n = 60), 0~1 septate (Fig. 2C-E). Chlamydospores forming as lateral branches of hyphae were commonly observed, globose, ellipsoid or oblong, 14.8-22×14.7-19.6 μm, l/w = 1.0-1.3 (Fig. 2F-G). The morphological characteristics were consistent with that of Hypomyces mycophilus, whose anamorph was Cladobotryum polypori (Rogerson et al. 1993, Zeng et al. 2017). For further species identification, genomic DNA was extracted using the DNeasy Plant Mini Kit (Qiagen, USA). The internal transcribed spacer (ITS) regions and large subunit ribosomal RNA (LSU) genes were amplified using the primer pairs ITS1/ITS4 (White et al. 1990) and LROR/LR5 (Bhattacharya et al. 2000), respectively. The sequences were deposited in GenBank with accession numbers OP430530 and OP430531. BLAST nucleotide searches showed more than 99% homology with corresponding sequences of Hypomyces mycophilus HMAS 275554 and CBS 175.56. Phylogenetic trees based on ITS and LSU revealed that the strain JZBQA3 was grouped with H. mycophilus with high support value (Fig. 3). A in vivo pathogenicity test was performed using eight mushroom sticks with healthy fruiting bodies in triplicate. Each four sticks were sprayed with conidial suspension (108 spores/mL) of strain JZBQA3 or sterile distilled water, respectively, and maintained in an artificial climate chamber at 25-26°C. Cobweb-like characteristics were observed on the fruiting bodies treated with the JZBQA3 conidial suspension 2-3 days after inoculation, while those treated with sterile distilled water remained symptomless (Fig. 4 A-B). The same pathogen was re-isolated and confirmed from the infected fruiting bodies by integrated analysis of morphological characteristics and gene sequencing data, fulfilling Koch's postulates. Hypomyces mycophilus was first reported on Trametes versicolor in North Carolina (Rogerson et al. 1993), and is the causal agent of cobweb diseases on Auricularia heimuer (Zhang et al. 2023). To our knowledge, this is the first report of cobweb disease caused by H. mycophilus in A. cornea var. Li. This finding is a valuable contribution to the knowledge of cobweb disease development in edible fungi.
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Affiliation(s)
| | - Yu Liu
- Beijing Academy of Agriculture and Forestry Sciences Institute of Plant and Environmental Protection, 572845, No. 9, dawn Garden Road, Haidian District, Beijing, Beijing, China, 100097;
| | - Jun Li
- College of Bioscience and Resources Environment, Beijing University of Agriculture, Beijing 102206, China, Beijing, China;
| | - Zhaoqing Zeng
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beicheng Xi Load 3rd, Beijing, China, 100101;
| | | | - Wentao Qin
- Beijing Academy of Agriculture and Forestry Sciences Institute of Plant and Environmental Protection, 572845, No. 9, dawn Garden Road, Haidian District, Beijing, Beijing, China, 100097
- China;
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Chang Z, Liu S, Qiu R, Song S, Cai Z, Tu G. Time-aware neural ordinary differential equations for incomplete time series modeling. J Supercomput 2023; 79:1-29. [PMID: 37359342 PMCID: PMC10192786 DOI: 10.1007/s11227-023-05327-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Accepted: 04/19/2023] [Indexed: 06/28/2023]
Abstract
Internet of Things realizes the ubiquitous connection of all things, generating countless time-tagged data called time series. However, real-world time series are often plagued with missing values on account of noise or malfunctioning sensors. Existing methods for modeling such incomplete time series typically involve preprocessing steps, such as deletion or missing data imputation using statistical learning or machine learning methods. Unfortunately, these methods unavoidable destroy time information and bring error accumulation to the subsequent model. To this end, this paper introduces a novel continuous neural network architecture, named Time-aware Neural-Ordinary Differential Equations (TN-ODE), for incomplete time data modeling. The proposed method not only supports imputation missing values at arbitrary time points, but also enables multi-step prediction at desired time points. Specifically, TN-ODE employs a time-aware Long Short-Term Memory as an encoder, which effectively learns the posterior distribution from partial observed data. Additionally, the derivative of latent states is parameterized with a fully connected network, thereby enabling continuous-time latent dynamics generation. The proposed TN-ODE model is evaluated on both real-world and synthetic incomplete time-series datasets by conducting data interpolation and extrapolation tasks as well as classification task. Extensive experiments show the TN-ODE model outperforms baseline methods in terms of Mean Square Error for imputation and prediction tasks, as well as accuracy in downstream classification task.
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Affiliation(s)
- Zhuoqing Chang
- School of Computer Science, Wuhan University, 299# Bayi Rd, Wuchang District, Wuhan, 430072 Hubei China
| | - Shubo Liu
- School of Computer Science, Wuhan University, 299# Bayi Rd, Wuchang District, Wuhan, 430072 Hubei China
| | - Run Qiu
- School of Computer Science, Wuhan University, 299# Bayi Rd, Wuchang District, Wuhan, 430072 Hubei China
| | - Song Song
- School of Computer Science, Wuhan University, 299# Bayi Rd, Wuchang District, Wuhan, 430072 Hubei China
| | - Zhaohui Cai
- School of Computer Science, Wuhan University, 299# Bayi Rd, Wuchang District, Wuhan, 430072 Hubei China
| | - Guoqing Tu
- School of Cyber Science and Engineering, Wuhan University, 299# Bayi Rd, Wuchang District, Wuhan, 430072 Hubei China
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19
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Tang X, Tian G, Huang Y, Ran J, Wen Z, Xu J, Song S, Liu B, Han R, Shi F, Zhang X, Sun H, Gong Y, Li Y, Zhang Z, Chen Z, Luo P. Activation cross sections for reactions induced by 14 MeV neutrons on natural titanium. Appl Radiat Isot 2023; 193:110636. [PMID: 36584411 DOI: 10.1016/j.apradiso.2022.110636] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Revised: 11/22/2022] [Accepted: 12/23/2022] [Indexed: 12/28/2022]
Abstract
Cross sections for the neutrons around 14 MeV interaction with natural titanium were precisely measured by neutron activation and off-line measurement technique. The fast neutrons were produced by 3H(d,n)4He reaction and the neutron energy was obtained by using the cross section ratio method of 90Zr(n,2n)89Zr to 93Nb(n,2n)92mNb reactions. Experimental cross sections have been acquired for natTi(n,x)46Sc, natTi(n,x)47Sc, 50Ti(n,x)47Ca and 48Ti(n,x)48Sc reactions. The measured cross section data are compared with the experimental data available in the previous literature and evaluated nuclear data from the ENDF/B-VIII.0, JEFF-3.3, JENDL-5, BROND-3.1, CENDL-3.2 and FENDL-3.2b libraries. Furthermore, excitation functions for these reactions were calculated by using the theoretical model based on Talys-1.96 code with default and adjusted parameters. Within experimental error, evaluated nuclear data are mostly consistent with experimental data. The excitation function with adjusted parameters can roughly reproduce the experimental data.
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Affiliation(s)
- X Tang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, 730000, China; School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - G Tian
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, 730000, China; Advanced Energy Science and Technology Guangdong Laboratory, Huizhou, 516000, China
| | - Y Huang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, 730000, China; School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - J Ran
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, 730000, China
| | - Z Wen
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, 730000, China
| | - J Xu
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, 730000, China; School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - S Song
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, 730000, China
| | - B Liu
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, 730000, China; Advanced Energy Science and Technology Guangdong Laboratory, Huizhou, 516000, China.
| | - R Han
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, 730000, China; School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing, 100049, China; Advanced Energy Science and Technology Guangdong Laboratory, Huizhou, 516000, China
| | - F Shi
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, 730000, China; Advanced Energy Science and Technology Guangdong Laboratory, Huizhou, 516000, China
| | - X Zhang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, 730000, China; Advanced Energy Science and Technology Guangdong Laboratory, Huizhou, 516000, China
| | - H Sun
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, 730000, China; School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing, 100049, China; Advanced Energy Science and Technology Guangdong Laboratory, Huizhou, 516000, China
| | - Y Gong
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, 730000, China; School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Y Li
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, 730000, China
| | - Z Zhang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, 730000, China; School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Z Chen
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, 730000, China; School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing, 100049, China; Advanced Energy Science and Technology Guangdong Laboratory, Huizhou, 516000, China
| | - P Luo
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, 730000, China; School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing, 100049, China; Advanced Energy Science and Technology Guangdong Laboratory, Huizhou, 516000, China.
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Pang X, Sun X, Gu Y, He X, Gong K, Song S, Zhang J, Xia J, Liu Z, Cui Y. Discovery of C19-9 as a novel non-RGD inhibitor of αvβ3 to overcome enzalutamide resistance in castration-resistant prostate cancer. Signal Transduct Target Ther 2023; 8:60. [PMID: 36759595 PMCID: PMC9911763 DOI: 10.1038/s41392-022-01236-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Revised: 09/14/2022] [Accepted: 10/19/2022] [Indexed: 02/11/2023] Open
Affiliation(s)
- Xiaocong Pang
- Peking University First Hospital, Xishiku Street, Xicheng District, 100034, Beijing, China
| | - Xiaojiao Sun
- School of Pharmaceutical Sciences, Peking University, Xueyuan Road 38, Haidian District, 100191, Beijing, China
| | - Yanlun Gu
- Peking University First Hospital, Xishiku Street, Xicheng District, 100034, Beijing, China
| | - Xu He
- Peking University First Hospital, Xishiku Street, Xicheng District, 100034, Beijing, China
| | - Kan Gong
- Peking University First Hospital, Xishiku Street, Xicheng District, 100034, Beijing, China
| | - Song Song
- School of Pharmaceutical Sciences, Peking University, Xueyuan Road 38, Haidian District, 100191, Beijing, China
| | - Jixin Zhang
- Peking University First Hospital, Xishiku Street, Xicheng District, 100034, Beijing, China
| | - Jie Xia
- Institute of Materia Medica, Chinese Academy of Medical Sciences, Nanwei Road, Xicheng District, 100050, Beijing, China
| | - Zhenming Liu
- School of Pharmaceutical Sciences, Peking University, Xueyuan Road 38, Haidian District, 100191, Beijing, China.
| | - Yimin Cui
- Peking University First Hospital, Xishiku Street, Xicheng District, 100034, Beijing, China.
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21
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Wu T, Zeng W, Liu Y, Song S, Zhao L, Chen C, Zhang C, Guo L. Secure turbulence-resistant coherent free-space optical communications via chaotic region-optimized probabilistic constellation shaping. Opt Lett 2023; 48:684-687. [PMID: 36723563 DOI: 10.1364/ol.480981] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Accepted: 12/29/2022] [Indexed: 06/18/2023]
Abstract
We propose a chaotic region-optimized probabilistic constellation shaping (CRPCS) scheme to enhance the security and the resistance to turbulence for free-space optical (FSO) communications. For this approach, a four-dimensional hyperchaotic system generates a pseudorandom sequence to rotate and encrypt the constellation. Constellation distribution of short pseudorandom sequences behaves as the law of a non-uniform character. Grouping long pseudorandom sequences and counting the characteristics of constellation distribution can realize probabilistic constellation shaping with low and fixed redundant information. We demonstrate a 56 Gbyte/s coherent FSO communication system based on log-normal and Gamma-Gamma turbulence models with a key space of 1075. The results show that the optical receiver sensitivity is improved by 0.3-1.1 dB, and the transmission distance is also improved by 3.2%-7.0% in different shaping cases.
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Gao Q, Peng L, Song S, Zhang Y, Shi Y. Assessment of healthcare quality among village clinicians in rural China: the role of internal work motivation. Hong Kong Med J 2023; 29:57-65. [PMID: 36754422 DOI: 10.12809/hkmj219871] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2023] Open
Abstract
INTRODUCTION The quality of primary care is important for health outcomes among residents in China. There is evidence that internal work motivation improves the quality of healthcare provided by clinicians. However, few empirical studies have examined the relationship between internal work motivation and clinical performance among village clinicians in rural China. This study was performed to evaluate healthcare quality among village clinicians, then explore its relationships with internal work motivation among those clinicians. METHODS We collected survey data using a standardised patient method and a structured questionnaire. We observed 225 interactions between standardised patients and village clinicians from 21 counties in three provinces. We used logistic regression models to analyse the relationships between work motivation and healthcare quality, then conducted heterogeneity analysis. RESULTS Healthcare quality among village clinicians was generally low. There was a significantly positive correlation between internal work motivation and healthcare quality among village clinicians (P<0.1). Additionally, the positive effect of internal work motivation on healthcare quality was strongest among clinicians who received financial incentives and had a lighter workload (fewer patients per month) [P<0.1]. CONCLUSION Healthcare quality among village clinicians requires urgent improvement. We recommend implementing financial incentives to stimulate internal work motivation among village clinicians, thus improving their clinical performance.
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Affiliation(s)
- Q Gao
- Center for Experimental Economics in Education, Shaanxi Normal University, Xi'an, China
| | - L Peng
- Center for Experimental Economics in Education, Shaanxi Normal University, Xi'an, China
| | - S Song
- Center for Experimental Economics in Education, Shaanxi Normal University, Xi'an, China
| | - Y Zhang
- Center for Experimental Economics in Education, Shaanxi Normal University, Xi'an, China
| | - Y Shi
- Center for Experimental Economics in Education, Shaanxi Normal University, Xi'an, China
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Wang Z, Li H, Song S, Sun H, Dai X, Chen M, Xu H, Zhang H, Pang Y. Transmission of tuberculosis in an incarcerated population during the subclinical period: A cross-sectional study in Qingdao, China. Front Public Health 2023; 11:1098519. [PMID: 36761133 PMCID: PMC9905226 DOI: 10.3389/fpubh.2023.1098519] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Accepted: 01/06/2023] [Indexed: 01/26/2023] Open
Abstract
Objectives As a closed gathering place, prison is the cradle of tuberculosis (TB) outbreak. Therefore, the analysis of the prevalence rate and risk factors of latent tuberculosis infection (LTBI) in prison will be a necessary measure to intervene in the spread of tuberculosis. Methods In this study, we consecutively recruited 506 adult prisoners in Qingdao to carry out this cross-sectional study. TB and LTBI were screened by IGRA, X-ray, X-pert, sputum smear and culture. Results A total of 17 TB, 101 LTBI and 388 HC were identified, with an infection rate of 23.32% (118/506) and a TB incidence rate of 3282/100,000 population. Age, malnutrition and inmates living with TB prisoners were risk factors for LTBI. Additionally, most TB cases (70.59%, 12/17) were subclinical tuberculosis (STB), contributing significantly to TB transmission. Conclusion Our results demonstrate that the transmission efficiency of asymptomatic patients is not essentially different from that of symptomatic patients, indicating that TB transmission occurs during the subclinical period. Our findings highlight the need to strengthen active case-finding strategies to increase TB case detection in this population.
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Affiliation(s)
- Zhongdong Wang
- 1Qingdao Municipal Center for Disease Control and Prevention, Qingdao, China
| | - Haoran Li
- 2Department of Bacteriology and Immunology, Beijing Chest Hospital, Capital Medical University/Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing, China
| | - Song Song
- 1Qingdao Municipal Center for Disease Control and Prevention, Qingdao, China
| | - Haiyan Sun
- 1Qingdao Municipal Center for Disease Control and Prevention, Qingdao, China
| | - Xiaoqi Dai
- 1Qingdao Municipal Center for Disease Control and Prevention, Qingdao, China
| | - Meng Chen
- 1Qingdao Municipal Center for Disease Control and Prevention, Qingdao, China
| | - Honghong Xu
- 1Qingdao Municipal Center for Disease Control and Prevention, Qingdao, China
| | - Huaqiang Zhang
- 1Qingdao Municipal Center for Disease Control and Prevention, Qingdao, China,Huaqiang Zhang ✉
| | - Yu Pang
- 2Department of Bacteriology and Immunology, Beijing Chest Hospital, Capital Medical University/Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing, China,*Correspondence: Yu Pang ✉
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Zhang C, Liu J, Cheng Z, Li J, Song S, Jiao N. Amino-tetrazoles synthesis from secondary amides via C-C bond nitrogenation. Synlett 2023. [DOI: 10.1055/a-2006-4548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
The development of novel methods for the preparation of amino tetrazoles is of long-standing interest for chemists due to the great importance of these compounds in chemistry and biology. Herein, we report an efficient method for the preparation of amino tetrazoles from secondary amides via selective C-C bond cleavage. Compared with traditional tedious and cumbersome approaches to amino tetrazoles, this chemistry discovered a highly efficient nitrogenation strategy with four nitrogen atoms installation into secondary amides in one-step.
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Affiliation(s)
- Cheng Zhang
- State Key Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing, China
| | - Jianzhong Liu
- State Key Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing, China
| | - Zengrui Cheng
- State Key Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing, China
| | - Junhua Li
- State Key Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing, China
| | - Song Song
- State Key Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing, China
| | - Ning Jiao
- State Key Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing, China
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Zhang Q, Li J, Sun Y, Song S, Li X, Chen G. Neoagarohexaose Protects against Amyloid β-Induced Oxidative Stress and Aggregation. APPL BIOCHEM MICRO+ 2022. [DOI: 10.1134/s0003683822100179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/28/2023]
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26
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Song S, Tu R, Lu Y, Yin S, Lin H, Xiao Y. Restorative Effects from Green Exposure: A Systematic Review and Meta-Analysis of Randomized Control Trials. Int J Environ Res Public Health 2022; 19:14506. [PMID: 36361386 PMCID: PMC9658851 DOI: 10.3390/ijerph192114506] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Revised: 11/02/2022] [Accepted: 11/03/2022] [Indexed: 06/16/2023]
Abstract
Despite growing research on green space and health benefits, the body of evidence remains heterogeneous and unclear. A systematic review and meta-analysis of studies of randomized controlled trials (RCTs) with high evidence levels are deemed timely. We searched Scopus, PubMed, Embase, and Web of Science for the literature up to January 2022 and assessed bias using the Cochrane Risk of Bias tool 2.0. We calculated joint impact estimates for each green space exposure assessment technique using random and fixed effects models. Compared to non-green space situations, green space exposure was related to decreased negative feelings, such as fatigue -0.84 (95% CI: -1.15 to -0.54), and increased levels of pleasant emotions, such as vitality 0.85 (95% CI: 0.52 to 1.18). It also lowered physiological indicators, including heart rate levels, by 0.60 (95% CI: -0.90 to -0.31). Effect sizes were large and statistically significant, and the overall quality of the evidence was good. Existing RCTs on greenspace exposure pay insufficient attention to older and adolescent populations, different ethnic groups, different regions, and doses of greenspace exposure interventions. More research is needed to understand how and how much green space investment has the most restorative benefits and guide urban green space planning and renewal.
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Affiliation(s)
- Song Song
- State Key Laboratory of Subtropical Building Science, South China University of Technology, Guangzhou 510641, China
- School of Architecture, South China University of Technology, Guangzhou 510641, China
| | - Ruoxiang Tu
- School of Architecture, South China University of Technology, Guangzhou 510641, China
| | - Yao Lu
- State Key Laboratory of Subtropical Building Science, South China University of Technology, Guangzhou 510641, China
- School of Architecture, South China University of Technology, Guangzhou 510641, China
| | - Shi Yin
- State Key Laboratory of Subtropical Building Science, South China University of Technology, Guangzhou 510641, China
- School of Architecture, South China University of Technology, Guangzhou 510641, China
| | - Hankun Lin
- School of Architecture and Urban Planning, Guangdong University of Technology, Guangzhou 510006, China
| | - Yiqiang Xiao
- State Key Laboratory of Subtropical Building Science, South China University of Technology, Guangzhou 510641, China
- School of Architecture, South China University of Technology, Guangzhou 510641, China
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Wang D, Liu H, Yu S, Jian Y, Xu S, Ying F, Zhou F, Song S, Zhang G. 190P Real-world applications of poly (ADP-ribose) polymerase inhibitors for ovarian cancer: A single-center study in China. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.10.226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022] Open
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Zhu H, Liu Q, Xu H, Mo M, Wang Z, Lu K, Zhou J, Chen J, Zheng X, Ye J, Ge X, Luo H, Song S, Chen Y, Zhao K. 132TiP Dose escalation of chemoradiotherapy in locally advanced esophageal squamous cell carcinoma based on positron emission tomography response: A phase III, open-label, randomized, controlled trial (ESO-Shanghai 12). Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.10.168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022] Open
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Wang J, Liu H, Song S, Chen Y, Hu Y. Bio-Pd(0) diverting electron from CoQ-long chain to FDH/Hase-short chain during sulfamethoxazole degradation. Chemosphere 2022; 307:135689. [PMID: 35839988 DOI: 10.1016/j.chemosphere.2022.135689] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Revised: 06/26/2022] [Accepted: 07/11/2022] [Indexed: 06/15/2023]
Abstract
Microbial electron output capacity is critical for organic contaminants biodegradation. Herein, original C. freundii JH could oxidate formate in anaerobic respiration, but lack the ability to degrade sulfamethoxazole (SMX). While the incorporation of Pd(0) could effectively improve the electron output via improving the combination between flavins and c-type cytochromes (c-Cyts), increasing the activities of key enzymes (formate dehydrogenase, hydrogenase, F0F1-ATPases), etc. More importantly, the presence of Pd(0) caused the NADH dehydrogenase (complex I) nearly in idle, and triggered the decrease of NADH/NAD+ ratio and increase of H+-efflux transmembrane gradient, eventually resulting in the electrons diverting from CoQ-involved long respiratory chain (decreasing from 91.67% to 36.25%) to FDH/Hases-based hydrogen-producing short chain (increasing from 22.44% to 84.88%), which further intensified the electron output. Above changes effectively launched and guaranteed the high-level SMX degradation by palladized C. freundii JH, alleviating the ecotoxicity of SMX in aquatic and terrestrial environments. These conclusions provided the new view to regulate the microbial electron output behaviors.
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Affiliation(s)
- Jinghao Wang
- Ministry of Education Key Laboratory of Pollution Control and Ecological Remediation for Industrial Agglomeration Area, School of Environment and Energy, South China University of Technology, Guangzhou, 510006, China
| | - Huimin Liu
- Ministry of Education Key Laboratory of Pollution Control and Ecological Remediation for Industrial Agglomeration Area, School of Environment and Energy, South China University of Technology, Guangzhou, 510006, China
| | - Song Song
- Ministry of Education Key Laboratory of Pollution Control and Ecological Remediation for Industrial Agglomeration Area, School of Environment and Energy, South China University of Technology, Guangzhou, 510006, China
| | - Yuancai Chen
- Ministry of Education Key Laboratory of Pollution Control and Ecological Remediation for Industrial Agglomeration Area, School of Environment and Energy, South China University of Technology, Guangzhou, 510006, China.
| | - Yongyou Hu
- Ministry of Education Key Laboratory of Pollution Control and Ecological Remediation for Industrial Agglomeration Area, School of Environment and Energy, South China University of Technology, Guangzhou, 510006, China
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Zhou M, Feng J, Chen Y, Hu Y, Song S. Towards BioMnOx-mediated intra/extracellular electron shuttling for doxycycline hydrochloride metabolism in Bacillus thuringiensis. J Environ Manage 2022; 320:115891. [PMID: 36056494 DOI: 10.1016/j.jenvman.2022.115891] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Revised: 07/11/2022] [Accepted: 07/26/2022] [Indexed: 06/15/2023]
Abstract
Doxycycline hydrochloride (DCH) could be continuously removed by Bacillus thuringiensis S622 with the in-situ biogenic manganese oxide (BioMnOx) via oxidizing/regenerating. The DCH removal rate was significantly increased by 3.01-fold/1.47-fold at high/low Mn loaded via the integration of biological (intracellular/extracellular electron transfer (IET/EET)) and abiotic process (BioMnOx, Mn(III) and •OH). BioMnOx accelerated IET via activating coenzyme Q to enhance electrons transfer (ET) from complex I to complex III, and as an alternative electron acceptor for respiration and provide another electron transfer transmission channel. Additionally, EET was also accelerated by stimulating to secrete flavins, cytochrome c (c-Cyt) and flavin bounded with c-Cyt (Flavins & Cyts). To our best knowledge, this is the first report about the role of BioMnOx on IET/EET during antibiotic biodegradation. These results suggested that Bacillus thuringiensis S622 incorporated with BioMnOx could adopt an alternative strategy to enhance DCH degradation, which may be of biogeochemical and technological significance.
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Affiliation(s)
- Miaomiao Zhou
- Ministry of Education Key Laboratory of Pollution Control and Ecological Remediation for Industrial Agglomeration Area, School of Environment and Energy, South China University of Technology, Guangzhou, 510006, China
| | - Jiyu Feng
- Ministry of Education Key Laboratory of Pollution Control and Ecological Remediation for Industrial Agglomeration Area, School of Environment and Energy, South China University of Technology, Guangzhou, 510006, China
| | - Yuancai Chen
- Ministry of Education Key Laboratory of Pollution Control and Ecological Remediation for Industrial Agglomeration Area, School of Environment and Energy, South China University of Technology, Guangzhou, 510006, China.
| | - Yongyou Hu
- Ministry of Education Key Laboratory of Pollution Control and Ecological Remediation for Industrial Agglomeration Area, School of Environment and Energy, South China University of Technology, Guangzhou, 510006, China
| | - Song Song
- Ministry of Education Key Laboratory of Pollution Control and Ecological Remediation for Industrial Agglomeration Area, School of Environment and Energy, South China University of Technology, Guangzhou, 510006, China
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Zhang S, Zhao L, Song S, Guo L, Liu Y. Full-duplex transmission without an uplink light source for a millimeter-wave radio over a free-space optical system. Appl Opt 2022; 61:8323-8332. [PMID: 36256145 DOI: 10.1364/ao.472664] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Accepted: 09/07/2022] [Indexed: 06/16/2023]
Abstract
The radio over free-space optical (RoFSO) system is a promising alternative technique for mobile fronthaul networks such as aerial base stations where fiber link is unavailable to deploy. However, the full-duplex transmission imposes challenges on the design of the RoFSO system due to the additional structural complexity when ease-of-installation is a mandatory request. The interplay between the uplink and downlink for a simplified structure has been less investigated in related works. In this paper, we propose a full-duplex RoFSO transmission system structure in which the uplink light source is physically saved. The optical center carrier of the double-sideband (DSB) modulated signal in the downlink is extracted as the light source for the uplink, and thus the system complexity is reduced. In order to mitigate the permanence degradation of uplink transmission due to the attenuated light source, channel estimation and power pre-compensation are implemented without additional training symbols by utilizing the characteristics of the channel correlation between uplink and downlink and the information independence of optical center carrier in the DSB. The proposed channel estimation algorithm is verified theoretically and experimentally. The results show that the difference between uplink and downlink channel attenuation is -0.7dB. In case of the excessive power compensation and the resulting effects, a power control mechanism is introduced to the power pre-compensation. By using the power pre-compensation mechanism, the bit error rate (BER) can reach 1.58×10-3 and 3.8×10-3, respectively, under the channel conditions of medium turbulence and weak turbulence. Owing to the power control mechanism, the power saving rates of downlink and uplink are up to 78% and 67%.
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Thaw D, Chen A, Song S, Morbeck D, Wong P. Development of an in-house algorithm to predict the formation of viable blastocyst from cleavage stage embryo. Reprod Biomed Online 2022. [DOI: 10.1016/j.rbmo.2022.08.056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Park J, Cho S, Lee K, Choi E, Jung W, Kim S, Park G, Song S, Kang C, Ma M, Yoo D, Paeng K, Ock CY. 94P Performance validation of an artificial intelligence-powered programmed death-ligand 1 (PD-L1) combined positive score analyzer in urothelial cancer. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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Kim S, Park G, Kim S, Song S, Song H, Ryu J, Park S, Pereira S, Paeng K, Ock CY. 1706P Artificial intelligence-powered tumor purity assessment from H&E whole slide images associates with variant allele frequency of somatic mutations across 23 cancer types in TCGA cohorts. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.1784] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
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35
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Cho S, Lim Y, Cho S, Kim S, Park G, Song S, Song H, Park S, Ma M, Jung W, Paeng K, Ock CY, Cho E, Song S. 155P Artificial Intelligence (AI) - powered human epidermal growth factor receptor-2 (HER2) and tumor-infiltrating lymphocytes (TIL) analysis for HER2-positive early breast cancer patients treated with HER2-targeted neoadjuvant chemotherapy (NAC). Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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36
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Moon J, Cho HG, Kim S, Kim S, Park G, Song S, Jung W, Ock CY. 1704P Multimodal approach to discover novel targets for antibody-drug conjugates by analyzing distinct expression patterns of frequent copy number aberration. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.1782] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Cho HG, Kim S, Choi S, Cho S, Jung W, Kim S, Park G, Song S, Pereira S, Song H, Park S, Mostafavi M, Paeng K, Ock CY. 900P AI-powered analyzer reveals enrichment of intra-tumoral tumor-infiltrating lymphocytes in high-grade neuroendocrine neoplasms. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.1026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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38
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Dou X, Sun Q, Xu G, Liu Y, Zhang C, Wang B, Lu Y, Guo Z, Su L, Huo T, Zhao X, Wang C, Yu Z, Song S, Zhang L, Liu Z, Lai L, Jiao N. Discovery of 2-(furan-2-ylmethylene)hydrazine-1-carbothioamide derivatives as novel inhibitors of SARS-CoV-2 main protease. Eur J Med Chem 2022; 238:114508. [PMID: 35688005 PMCID: PMC9162962 DOI: 10.1016/j.ejmech.2022.114508] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2022] [Revised: 05/29/2022] [Accepted: 05/30/2022] [Indexed: 11/30/2022]
Abstract
The COVID-19 posed a serious threat to human life and health, and SARS-CoV-2 Mpro has been considered as an attractive drug target for the treatment of COVID-19. Herein, we report 2-(furan-2-ylmethylene)hydrazine-1-carbothioamide derivatives as novel inhibitors of SARS-CoV-2 Mpro developed by in-house library screening and biological evaluation. Similarity search led to the identification of compound F8–S43 with the enzymatic IC50 value of 10.76 μM. Further structure-based drug design and synthetic optimization uncovered compounds F8–B6 and F8–B22 as novel non-peptidomimetic inhibitors of Mpro with IC50 values of 1.57 μM and 1.55 μM, respectively. Moreover, enzymatic kinetic assay and mass spectrometry demonstrated that F8–B6 was a reversible covalent inhibitor of Mpro. Besides, F8–B6 showed low cytotoxicity with CC50 values of more than 100 μM in Vero and MDCK cells. Overall, these novel SARS-CoV-2 Mpro non-peptidomimetic inhibitors provide a useful starting point for further structural optimization.
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Affiliation(s)
- Xiaodong Dou
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, 100191, China
| | - Qi Sun
- BNLMS, Peking-Tsinghua Center for Life Sciences at College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, China
| | - Guofeng Xu
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, 100191, China
| | - Yameng Liu
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, 100191, China
| | - Caifang Zhang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, 100191, China
| | - Bingding Wang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, 100191, China
| | - Yangbin Lu
- BNLMS, Peking-Tsinghua Center for Life Sciences at College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, China
| | - Zheng Guo
- BNLMS, Peking-Tsinghua Center for Life Sciences at College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, China
| | - Lingyu Su
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, 100191, China
| | - Tongyu Huo
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, 100191, China
| | - Xinyi Zhao
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, 100191, China
| | - Chen Wang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, 100191, China
| | - Zhongtian Yu
- BNLMS, Peking-Tsinghua Center for Life Sciences at College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, China
| | - Song Song
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, 100191, China
| | - Liangren Zhang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, 100191, China
| | - Zhenming Liu
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, 100191, China
| | - Luhua Lai
- BNLMS, Peking-Tsinghua Center for Life Sciences at College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, China; Center for Quantitative Biology, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing, 100871, China.
| | - Ning Jiao
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, 100191, China.
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Biglione B, Cucka B, Chand S, Rrapi R, Gabel C, Song S, Kroshinsky D. 221 Distinguishing clinical features for pseudocellulitis in pediatric inpatients: A retrospective study. J Invest Dermatol 2022. [DOI: 10.1016/j.jid.2022.05.228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Cucka B, Biglione B, Chand S, Rrapi R, Gabel C, Song S, Kroshinsky D. 361 Utilization of resources for cellulitis in hospitalized patients: Predictors of cutaneous abscess diagnosed on ultrasound. J Invest Dermatol 2022. [DOI: 10.1016/j.jid.2022.05.370] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Shi Y, Song S, Peng L, Nie J, Gao Q, Shi H, Teuwen DE, Yi H. Utilisation of village clinics in Southwest China: evidence from Yunnan Province. Hong Kong Med J 2022; 28:306-314. [PMID: 35973947 DOI: 10.12809/hkmj209153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/07/2023] Open
Abstract
INTRODUCTION Primary healthcare in rural China is underutilised, especially in village clinics in Southwest China. The aim of this study was to explore any relationships among the ethnicity of the healthcare provider, the clinical competence of the healthcare provider, and the utilisation of village clinics in Southwest China. METHODS This cross-sectional survey study involved 330 village healthcare providers from three prefectures in Yunnan Province in 2017. Multiple logistic regressions were adopted to investigate the utilisation of primary healthcare among different ethnic healthcare providers. RESULTS Primary healthcare utilisation was higher in village clinics where healthcare providers were Han Chinese than those where healthcare providers were ethnic minority (151 vs 101, P=0.008). The logistic regression analysis showed that clinical competence was positively associated with the utilisation of primary healthcare (odds ratio [OR]=1.49, 95% confidence interval [CI]=1.12-2.00; P=0.007) and that inadequate clinical competence of ethnic minority health workers may lead to a lag in the utilisation of primary healthcare (OR=0.45, 95% CI=0.23-0.89; P=0.022). CONCLUSION Our results confirm differences in the utilisation of primary healthcare in rural Yunnan Province among healthcare providers of different ethnicities. Appropriate enhancements of clinical competence could be conducive to improving the utilisation of primary healthcare, especially among ethnic minority healthcare providers.
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Affiliation(s)
- Y Shi
- Center for Experimental Economics in Education, Shaanxi Normal University, Xi'an, China
| | - S Song
- Center for Experimental Economics in Education, Shaanxi Normal University, Xi'an, China
| | - L Peng
- Center for Experimental Economics in Education, Shaanxi Normal University, Xi'an, China
| | - J Nie
- Center for Experimental Economics in Education, Shaanxi Normal University, Xi'an, China
| | - Q Gao
- Center for Experimental Economics in Education, Shaanxi Normal University, Xi'an, China
| | - H Shi
- Business Department Center of Red Cross Society of China, Beijing, China
| | - D E Teuwen
- Ghent University Hospital, Department of Neurology, Ghent, Belgium
| | - H Yi
- China Center for Agricultural Policy, School of Advanced Agricultural Sciences, Peking University, Beijing, China
- Institute for Global Health and Development, Peking University, Beijing, China
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42
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Zhao S, Song S, You Y, Zhang Y, Luo W, Han K, Ding T, Tian Y, Li X. Tuning redox ability of Zn3In2S6 with surfactant modification for highly efficient and selective photocatalytic C-C coupling. Molecular Catalysis 2022. [DOI: 10.1016/j.mcat.2022.112429] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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43
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Liu J, Zhao S, Song S, Cong H, Luo W, Ding T, Tian Y, Li X. Salt-Promoted Water Removal from Reflux Toluene for Efficient One-Step Lactide Synthesis. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.2c01345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jiashu Liu
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), State Key Laboratory of Chemical Engineering, Tianjin Key Laboratory of Applied Catalysis Science and Engineering, Institute of Shaoxing, School of Chemical Engineering & Technology, Tianjin University, Tianjin, 300350, P. R. China
| | - Shengnan Zhao
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), State Key Laboratory of Chemical Engineering, Tianjin Key Laboratory of Applied Catalysis Science and Engineering, Institute of Shaoxing, School of Chemical Engineering & Technology, Tianjin University, Tianjin, 300350, P. R. China
| | - Song Song
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), State Key Laboratory of Chemical Engineering, Tianjin Key Laboratory of Applied Catalysis Science and Engineering, Institute of Shaoxing, School of Chemical Engineering & Technology, Tianjin University, Tianjin, 300350, P. R. China
| | - Haifeng Cong
- National Engineering Research Center of Distillation Technology, School of Chemical Engineering & Technology, Tianjin University, Tianjin, 300350, P. R. China
| | - Wei Luo
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), State Key Laboratory of Chemical Engineering, Tianjin Key Laboratory of Applied Catalysis Science and Engineering, Institute of Shaoxing, School of Chemical Engineering & Technology, Tianjin University, Tianjin, 300350, P. R. China
| | - Tong Ding
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), State Key Laboratory of Chemical Engineering, Tianjin Key Laboratory of Applied Catalysis Science and Engineering, Institute of Shaoxing, School of Chemical Engineering & Technology, Tianjin University, Tianjin, 300350, P. R. China
| | - Ye Tian
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), State Key Laboratory of Chemical Engineering, Tianjin Key Laboratory of Applied Catalysis Science and Engineering, Institute of Shaoxing, School of Chemical Engineering & Technology, Tianjin University, Tianjin, 300350, P. R. China
| | - Xingang Li
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), State Key Laboratory of Chemical Engineering, Tianjin Key Laboratory of Applied Catalysis Science and Engineering, Institute of Shaoxing, School of Chemical Engineering & Technology, Tianjin University, Tianjin, 300350, P. R. China
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44
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Wang W, Yang X, Dai R, Yan Z, Wei J, Dou X, Qiu X, Zhang H, Wang C, Liu Y, Song S, Jiao N. Catalytic Electrophilic Halogenation of Arenes with Electron-Withdrawing Substituents. J Am Chem Soc 2022; 144:13415-13425. [PMID: 35839515 DOI: 10.1021/jacs.2c06440] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The electrophilic halogenation of arenes is perhaps the simplest method to prepare aryl halides, which are important structural motifs in agrochemicals, materials, and pharmaceuticals. However, the nucleophilicity of arenes is weakened by the electron-withdrawing substituents, whose electrophilic halogenation reactions usually require harsh conditions and lead to limited substrate scopes and applications. Therefore, the halogenation of arenes containing electron-withdrawing groups (EWGs) and complex bioactive compounds under mild conditions has been a long-standing challenge. Herein, we describe Brønsted acid-catalyzed halogenation of arenes with electron-withdrawing substituents under mild conditions, providing an efficient protocol for aryl halides. The hydrogen bonding of Brønsted acid with the protic solvent 1,1,1,3,3,3-hexafluoro-2-propanol (HFIP) enables this transformation and thus solves this long-standing problem.
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Affiliation(s)
- Weijin Wang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Xue Yuan Road 38, Beijing 100191, China
| | - Xiaoxue Yang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Xue Yuan Road 38, Beijing 100191, China
| | - Rongheng Dai
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Xue Yuan Road 38, Beijing 100191, China
| | - Zixi Yan
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Xue Yuan Road 38, Beijing 100191, China
| | - Jialiang Wei
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Xue Yuan Road 38, Beijing 100191, China
| | - Xiaodong Dou
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Xue Yuan Road 38, Beijing 100191, China
| | - Xu Qiu
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Xue Yuan Road 38, Beijing 100191, China
| | - Hongliang Zhang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Xue Yuan Road 38, Beijing 100191, China
| | - Chen Wang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Xue Yuan Road 38, Beijing 100191, China
| | - Yameng Liu
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Xue Yuan Road 38, Beijing 100191, China
| | - Song Song
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Xue Yuan Road 38, Beijing 100191, China.,State Key Laboratory of Green Chemistry Synthesis Technology, Zhejiang University of Technology, Hangzhou 310032, China
| | - Ning Jiao
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Xue Yuan Road 38, Beijing 100191, China.,State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
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Xu D, Liu H, Yin Z, He K, Song S, Chen Y, Hu Y, Liu C. Oxytetracycline co-metabolism with denitrification/desulfurization in SRB mediated system. Chemosphere 2022; 298:134256. [PMID: 35271902 DOI: 10.1016/j.chemosphere.2022.134256] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Revised: 01/30/2022] [Accepted: 03/05/2022] [Indexed: 06/14/2023]
Abstract
Aquaculture wastewater contained a high remnant of oxytetracycline (OTC) and nitrate. In this study, OTC co-metabolized with denitrification/desulfurization was investigated in terms of kinetic analysis, pathway, microbial communities and produces analysis in sulfate-reducing bacteria (SRB) mediated system. Long-term acclimatization with sulfate (300 mg-S/L) could markedly accelerate the removed rate of OTC from 0.9 to 1.4 mg/g-SS/d, with the kinetic constants increasing from 0.2760 to 0.5232 d-1, mainly via enzymes including adenosine-5'-phos-phosulfate reductase and cytochrome P450, and non-enzymatic process related to intermediates (adenosine-5'-phos-phosulfate and S0). Furthermore, OTC was likely detoxified by SRB enriched sludge mainly via hydrolysis, dehydration, oxidation and reduction. The denitrification process would postpone the OTC degradation via outcompeting electron donors with the desulfurization process. Redundancy analysis suggested that sulfur-oxidizing bacteria (Acidithiobacillus, Ochrobactrum) were highly related to OTC degradation processes. This study provides deep insight and a new opportunity for the treatment of aquaculture wastewater containing OTC, sulfate and nitrate by SRB sludge.
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Affiliation(s)
- Dong Xu
- Ministry of Education Key Laboratory of Pollution Control and Ecological Remediation for Industrial Agglomeration Area, College of Environment and Energy, South China University of Technology, Guangzhou, 510006, PR China
| | - Huimin Liu
- Ministry of Education Key Laboratory of Pollution Control and Ecological Remediation for Industrial Agglomeration Area, College of Environment and Energy, South China University of Technology, Guangzhou, 510006, PR China
| | - Zile Yin
- Ministry of Education Key Laboratory of Pollution Control and Ecological Remediation for Industrial Agglomeration Area, College of Environment and Energy, South China University of Technology, Guangzhou, 510006, PR China
| | - Kuang He
- South China Institute of Environmental Sciences, MEE, Guangzhou, Guangdong, 510006, PR China
| | - Song Song
- Ministry of Education Key Laboratory of Pollution Control and Ecological Remediation for Industrial Agglomeration Area, College of Environment and Energy, South China University of Technology, Guangzhou, 510006, PR China
| | - Yuancai Chen
- Ministry of Education Key Laboratory of Pollution Control and Ecological Remediation for Industrial Agglomeration Area, College of Environment and Energy, South China University of Technology, Guangzhou, 510006, PR China.
| | - Yongyou Hu
- Ministry of Education Key Laboratory of Pollution Control and Ecological Remediation for Industrial Agglomeration Area, College of Environment and Energy, South China University of Technology, Guangzhou, 510006, PR China
| | - Chang Liu
- South China Institute of Environmental Sciences, MEE, Guangzhou, Guangdong, 510006, PR China
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Zhao L, Guo H, Liu Y, Xiao J, Wu T, Song S, Guo L. Independent dual-single-sideband QPSK signal detection based on a single photodetector. Opt Express 2022; 30:22946-22956. [PMID: 36224984 DOI: 10.1364/oe.461208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Accepted: 05/30/2022] [Indexed: 06/16/2023]
Abstract
The two sidebands of the independent dual-single-sideband (dual-SSB) signal can carry different information to achieve higher spectral efficiency. However, the two sidebands of the independent dual-SSB vector signal are received independently. Generally, the receiver divides the signal into two channels. For each channel, we use an optical bandpass filter (OBPF) to select the left sideband (LSB) or right sideband (RSB), respectively. Then a photodetector (PD) is used for photoelectric conversion, followed by subsequent digital signal processing (DSP). To reduce the complexity and cost of the receiver, we propose a new independent dual-SSB vector signal detection scheme based on a single PD combined with conventional DSP. An electric bandpass filter (EBPF) filters out high-frequency components after photoelectric conversion, and then the signal is quadrature demodulated and processed by the DSP algorithm. The LSB and RSB are quadrature phase-shift keying (QPSK) modulated with an initial phase difference of π/4. Simulation results show that the proposed scheme performs better bit error rate (BER). For back-to-back (BTB) transmission, the BER of 2-Gbaud independent dual-SSB vector signal (1-Gbuad RSB and 1-Gbaud LSB) can reach the hard-decision forward error correction (HD-FEC) threshold of 3.8 × 10-3 when the input optical power into PD is -20 dBm. For 1-km and 2-km weak turbulence free-space optical (FSO) channel transmission, the BER of 2-Gbaud independent dual-SSB vector signal can reach the HD-FEC threshold when the input optical power into PD is -18.8 and -17 dBm, respectively. For 1-km weak turbulence FSO channel transmission, the BER of 4-, 8-, and 16-Gbuad independent dual-SSB vector signal can reach the HD-FEC threshold when the input optical power into PD is -17.8, -16, and -15 dBm, respectively.
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47
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Jiang X, Ding T, Gao Z, Zhao D, Tian Y, Song S, Li X. Activation of Oxygen Species on Ag/CoAlO Catalysts to Promote CO Oxidation by Enhancing Metal‐Support Interactions. ChemCatChem 2022. [DOI: 10.1002/cctc.202200653] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Xiaotong Jiang
- Tianjin University School of Chemical Engineering & Technology CHINA
| | - Tong Ding
- Tianjin University School of Chemical Engineering & Technology CHINA
| | - Zhongnan Gao
- China Tianchen Engineering Corporation China Tianchen Engineering Corporation CHINA
| | - Dongyue Zhao
- Sinopec Research Institute of Petroleum Processing State Key Laboratory of Catalytic Material and Reaction Engineering CHINA
| | - Ye Tian
- Tianjin University School of Chemical Engineering & Technology CHINA
| | - Song Song
- Tianjin University School of Chemical Engineering & Technology CHINA
| | - Xingang Li
- Tianjin University Department of Catalysis Science & Technology,School of Chemical Engineering & Te 92 Weijin Road, Nankai District 300072 Tianjin CHINA
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48
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Wu LW, Wang L, Wen ZL, Ma H, Ou QF, Wu C, Gao X, Shi L, Li HW, Xia F, Song S, Zhu ZQ, Liu HY, Chen XC, Zhang SL, Huang JY, Song YZ. [Screening and preliminary validation of biomarkers in sputum-negative pulmonary tuberculosis based on positron emission tomography/computed tomography and transcriptomics]. Zhonghua Jie He He Hu Xi Za Zhi 2022; 45:567-572. [PMID: 35658381 DOI: 10.3760/cma.j.cn112147-20211207-00864] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Objective: To screen and perform preliminary clinical validation of biomarkers of activity based on positron emission tomography/computed tomography (PET-CT) and transcriptomics in sputum-negative pulmonary tuberculosis lesion tissue. Methods: Nine patients with sputum-negative pulmonary tuberculosis treated surgically at the Shanghai Public Health Clinical Center for Thoracic Surgery from January 1, 2017 to December 31, 2019 were retrospectively collected as the discovery group, including four males and five females, aged 20-57 years (mean 36 years). All of the patients underwent PET-CT scanning before surgery, and the resected specimens were postoperatively classified according to preoperative PET-CT. The resected specimens were divided into areas with increased fluorodeoxyglucose (FDG) metabolism (SUVmax>3) and areas with normal FDG metabolism (SUVmax ≤ 3) according to the preoperative PET-CT performance. After sample processing, total RNA was extracted from the tissues of different regions, and then whole gene transcriptome sequencing was performed. Bioinformatics analysis of the two sets of data was performed to discover the expression profiles of the differences in whole gene transcriptome data between the two regions and to screen for candidate biomarkers. Eighty patients with sputum-negative pulmonary tuberculosis admitted to Shanghai Public Health Clinical Center from January 1, 2019 to January 1, 2021 were retrospectively collected as the validation group, including 37 males and 43 females, aged 20-62 years, with an average age of 39 years. The validation group was divided into a group with increased SUV (n=40) and a group without lesions on CT imaging (n=40). Enzyme-linked immunosorbent assay (ELISA) was used to determine the protein levels of candidate biomarkers in the peripheral plasma of patients. The effect of biomarkers was assessed using subject operating characteristic (ROC) curves. Student's t-test was used to determine whether the difference in protein levels between the two groups was statistically significant. Results: Bioinformatics analysis revealed that the expression levels of C1QB, CCL19, CCL5 and HLA-DMB correlated with the metabolic activity of sputum-negative tuberculosis lesion tissue. Further screening and validation by the validation group confirmed that the difference in C1QB protein levels in the peripheral plasma of patients was statistically significant between the group with increased SUV and the group without lesions on CT imaging [(3.55±0.34) mg/L vs. (2.75±0.21) mg/L, t=4.12, P<0.001]. And the ROC curve showed that the area under the curve for C1QB protein levels was 0.731, which had potential clinical value. Conclusion: The C1QB protein level can be used to assess the activity of lesions in patients with sputum-negative tuberculosis and is a potential biomarker.
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Affiliation(s)
- L W Wu
- Department of Thoracic Surgery, Shanghai Public Health Clinical Center, Fudan University, Shanghai 201052, China
| | - L Wang
- Department of Thoracic Surgery, Shanghai Public Health Clinical Center, Fudan University, Shanghai 201052, China
| | - Z L Wen
- Department of Scientific Research, Shanghai Public Health Clinical Center, Fudan University, Shanghai 201052, China
| | - H Ma
- Department of Scientific Research, Shanghai Public Health Clinical Center, Fudan University, Shanghai 201052, China
| | - Q F Ou
- Department of Tuberculosis, Wuxi No.5 People's Hospital, Wuxi 214007, China
| | - C Wu
- Department of Tuberculosis, Changchun Infectious Disease Hospital, Changchun 130123, China
| | - X Gao
- Department of PET-CT, Universal Medical Imaging, Shanghai 200233, China
| | - L Shi
- Department of Thoracic Surgery, Shanghai Public Health Clinical Center, Fudan University, Shanghai 201052, China
| | - H W Li
- Department of Thoracic Surgery, Shanghai Public Health Clinical Center, Fudan University, Shanghai 201052, China
| | - F Xia
- Department of Lung Disease, the Navy's 905th Hospital, Shanghai 200050, China
| | - S Song
- Department of Pathology, Shanghai Public Health Clinical Center, Fudan University, Shanghai 201052, China
| | - Z Q Zhu
- Department of Laboratory, Shanghai Public Health Clinical Center, Fudan University, Shanghai 201052, China
| | - H Y Liu
- Institute of Pathogen Biology, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100006, China
| | - X C Chen
- School of Basic Medicine, Medicine Collage, Shenzhen University, Shenzhen 518060, China
| | - S L Zhang
- School of Basic Medicine, Medicine Collage, Shanghai Jiaotong University, Shanghai 200025, China
| | - J Y Huang
- Department of Scientific Research, Shanghai Public Health Clinical Center, Fudan University, Shanghai 201052, China
| | - Y Z Song
- Department of Thoracic Surgery, Shanghai Public Health Clinical Center, Fudan University, Shanghai 201052, China
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Cucka B, Biglione B, Chand S, Rrapi R, Gabel CK, Song S, Kroshinsky D. Utilization of resources for cellulitis in hospitalized patients: predictors of cutaneous abscess diagnosed on ultrasound. J Eur Acad Dermatol Venereol 2022; 36:e889-e891. [PMID: 35691015 DOI: 10.1111/jdv.18321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Accepted: 06/03/2022] [Indexed: 11/29/2022]
Affiliation(s)
- B Cucka
- Department of Dermatology, Massachusetts General Hospital, Boston, MA, USA
| | - B Biglione
- Department of Dermatology, Massachusetts General Hospital, Boston, MA, USA
| | - S Chand
- Department of Dermatology, Massachusetts General Hospital, Boston, MA, USA
| | - R Rrapi
- Department of Dermatology, Massachusetts General Hospital, Boston, MA, USA
| | - C K Gabel
- Department of Dermatology, Massachusetts General Hospital, Boston, MA, USA
| | - S Song
- Department of Dermatology, Massachusetts General Hospital, Boston, MA, USA
| | - D Kroshinsky
- Department of Dermatology, Massachusetts General Hospital, Boston, MA, USA
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Qian D, Liu H, Hu F, Song S, Chen Y. Extracellular electron transfer-dependent Cr(VI)/sulfate reduction mediated by iron sulfide nanoparticles. J Biosci Bioeng 2022; 134:153-161. [PMID: 35690565 DOI: 10.1016/j.jbiosc.2022.05.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Revised: 05/18/2022] [Accepted: 05/19/2022] [Indexed: 01/18/2023]
Abstract
The slow electron transfer rate is a bottleneck to the biological wastewater treatment. This study evaluated the concomitant biotransformation and nonenzymatic reduction of Cr(VI) mediated by sulfate reducing bacteria (SRB), especially for the reinforcing Cr(VI) reduction via accelerating the electron transfer by the in-situ biosynthesized iron sulfide nanoparticles (FeS NPs). The kinetic results showed that 10 mg/L Cr(VI) was completely removed by pre-cultured FeS NPs within 7 h with kCr(VI) of 2.6 × 10-4 s-1, one magnitude higher than that without FeS NPs. Despite its competing electron to postpone sulfate reduction, the reduction of Cr(VI) was markedly improved via nonenzymatic reactions by the sulfide, the product of sulfate reduction. In the reinforcing system (bio-FeS NP@SRB), the bio-FeS NPs served as an electronic bypass conduit for CoQ could significantly amplify the electron flux, and switch the Cr(VI) reduction from intracellular space to extracellular environment, which had a great detoxification effect on the microorganisms, eventually markedly promoted electron transfer extracellularly and the reduction of Cr(VI). After the long-term acclimatization, Desulfovibrio became the dominant bacteria at the genus level and accounted for the relative abundance of 32%. This study provides an alternative to use biogenic FeS NPs for Cr(VI) remediation.
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Affiliation(s)
- Danshi Qian
- Ministry of Education Key Laboratory of Pollution Control and Ecological Remediation for Industrial Agglomeration Area, College of Environment and Energy, South China University of Technology, Guangzhou 510006, PR China
| | - Huimin Liu
- Ministry of Education Key Laboratory of Pollution Control and Ecological Remediation for Industrial Agglomeration Area, College of Environment and Energy, South China University of Technology, Guangzhou 510006, PR China
| | - Fan Hu
- Ministry of Education Key Laboratory of Pollution Control and Ecological Remediation for Industrial Agglomeration Area, College of Environment and Energy, South China University of Technology, Guangzhou 510006, PR China
| | - Song Song
- Ministry of Education Key Laboratory of Pollution Control and Ecological Remediation for Industrial Agglomeration Area, College of Environment and Energy, South China University of Technology, Guangzhou 510006, PR China
| | - Yuancai Chen
- Ministry of Education Key Laboratory of Pollution Control and Ecological Remediation for Industrial Agglomeration Area, College of Environment and Energy, South China University of Technology, Guangzhou 510006, PR China.
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