1
|
Hong Q, Fan M, Cai R, Shi W, Xie F, Chen Y, Li C. SOX4 regulates proliferation and apoptosis of human ovarian granulosa-like tumor cell line KGN through the Hippo pathway. Biochem Biophys Res Commun 2024; 705:149738. [PMID: 38447391 DOI: 10.1016/j.bbrc.2024.149738] [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: 02/16/2024] [Revised: 02/23/2024] [Accepted: 02/27/2024] [Indexed: 03/08/2024]
Abstract
The proliferation and apoptosis of ovarian granulosa cells are important for folliculogenesis. As a transcription factor, SRY-box transcription factor 4 (SOX4) has important roles in regulating cellular proliferation and apoptosis. Nonetheless, the regulatory mechanisms of SOX4 on proliferation and apoptosis of granulosa cells remain elusive. Therefore, a stably overexpressed SOX4 ovarian granulosa cell line KGN was generated by lentivirus encapsulation. We observed that overexpression of SOX4 inhibits apoptosis, promotes proliferation and migration of KGN cells. Comparative analysis of the transcriptome revealed 868 upregulated and 696 downregulated DEGs in LV-SOX4 in comparison with LV-CON KGN cell lines. Afterward, further assessments were performed to explore the possible functions about these DEGs. The data showed their involvement in many biological processes, particularly the Hippo signaling pathway. Moreover, the expression levels of YAP1, WWTR1, WTIP, DLG3, CCN2, and AMOT, which were associated with the Hippo signaling pathway, were further validated by qRT-PCR. In addition, the protein expression levels of YAP1 were markedly elevated, while p-YAP1 were notably reduced after overexpression of SOX4 in KGN cells. Thus, these results suggested that SOX4 regulates apoptosis, proliferation and migration of KGN cells, at least partly, through activation of the Hippo signaling pathway, which might be implicated in mammalian follicle development.
Collapse
Affiliation(s)
- Qiang Hong
- School of Basic Medical Sciences, Anhui Medical University, Hefei, 230032, China
| | - Mengmeng Fan
- Department of Hematology, The Second Affiliated Hospital of Anhui Medical University, Hefei, 230601, China
| | - Rui Cai
- School of Basic Medical Sciences, Anhui Medical University, Hefei, 230032, China
| | - Wenhui Shi
- School of Basic Medical Sciences, Anhui Medical University, Hefei, 230032, China
| | - Fenfen Xie
- School of Basic Medical Sciences, Anhui Medical University, Hefei, 230032, China
| | - Yuanhua Chen
- School of Basic Medical Sciences, Anhui Medical University, Hefei, 230032, China
| | - Cong Li
- Department of Hematology, The Second Affiliated Hospital of Anhui Medical University, Hefei, 230601, China.
| |
Collapse
|
2
|
Wang B, Lim JWM, Loh SM, Mayengbam R, Ye S, Feng M, He H, Liang X, Cai R, Zhang Q, Kwek LC, Demir HV, Mhaisalkar SG, Blundell SA, Chien Sum T. Weakly Confined Organic-Inorganic Halide Perovskite Quantum Dots as High-Purity Room-Temperature Single Photon Sources. ACS Nano 2024; 18:10807-10817. [PMID: 38598660 DOI: 10.1021/acsnano.3c12311] [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] [Indexed: 04/12/2024]
Abstract
Colloidal perovskite quantum dots (PQDs) have emerged as highly promising single photon emitters for quantum information applications. Presently, most strategies have focused on leveraging quantum confinement to increase the nonradiative Auger recombination (AR) rate to enhance single-photon (SP) purity in all-inorganic CsPbBr3 QDs. However, this also increases the fluorescence intermittency. Achieving high SP purity and blinking mitigation simultaneously remains a significant challenge. Here, we transcend this limitation with room-temperature synthesized weakly confined hybrid organic-inorganic perovskite (HOIP) QDs. Superior single photon purity with a low g(2)(0) < 0.07 ± 0.03 and a nearly blinking-free behavior (ON-state fraction >95%) in 11 nm FAPbBr3 QDs are achieved at room temperature, attributed to their long exciton lifetimes (τX) and short biexciton lifetimes (τXX). The significance of the organic A-cation is further validated using the mixed-cation FAxCs1-xPbBr3. Theoretical calculations utilizing a combination of the Bethe-Salpeter (BSE) and k·p approaches point toward the modulation of the dielectric constants by the organic cations. Importantly, our findings provide valuable insights into an additional lever for engineering facile-synthesized room-temperature PQD single photon sources.
Collapse
Affiliation(s)
- Bo Wang
- Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore 637371, Singapore
| | - Jia Wei Melvin Lim
- Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore 637371, Singapore
| | - Siow Mean Loh
- Université Grenoble Alpes, CEA, CNRS, IRIG, SyMMES, F-38000 Grenoble, France
| | - Rishikanta Mayengbam
- Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore 637371, Singapore
| | - Senyun Ye
- Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore 637371, Singapore
| | - Minjun Feng
- Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore 637371, Singapore
| | - Huajun He
- Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore 637371, Singapore
| | - Xiao Liang
- LUMINOUS! Center of Excellence for Semiconductor Lighting and Displays, The Photonics Institute, School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore 639798, Singapore
| | - Rui Cai
- Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore 637371, Singapore
| | - Qiannan Zhang
- Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore 637371, Singapore
| | - Leong-Chuan Kwek
- Centre for Quantum Technologies, National University of Singapore, Singapore 117543, on Singapore
- National Institute of Education, Nanyang Technological University, 1 Nanyang Walk Singapore 637616, Singapore
| | - Hilmi Volkan Demir
- Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore 637371, Singapore
- LUMINOUS! Center of Excellence for Semiconductor Lighting and Displays, The Photonics Institute, School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore 639798, Singapore
- UNAM─Institute of Materials Science and Nanotechnology, The National Nanotechnology Research Center, Department of Electrical and Electronics Engineering, Department of Physics, Bilkent University, Bilkent, Ankara 06800, Turkey
| | - Subodh G Mhaisalkar
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore
- SKKU Institute of Energy Science and Technology (SIEST), Sungkyunkwan University, 2066 Seobu-ro, Jangan-gu, Suwon-si, Gyeonggi-do 440-746, Korea
| | - Steven A Blundell
- Université Grenoble Alpes, CEA, CNRS, IRIG, SyMMES, F-38000 Grenoble, France
| | - Tze Chien Sum
- Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore 637371, Singapore
| |
Collapse
|
3
|
Cong Y, Qiao R, Wang X, Ji Y, Yang J, Baimanov D, Yu S, Cai R, Zhao Y, Wu X, Chen C, Wang L. Protein Corona-Mediated Inhibition of Nanozyme Activity: Impact of Protein Shape. J Am Chem Soc 2024; 146:10478-10488. [PMID: 38578196 DOI: 10.1021/jacs.3c14046] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/06/2024]
Abstract
During biomedical applications, nanozymes, exhibiting enzyme-like characteristics, inevitably come into contact with biological fluids in living systems, leading to the formation of a protein corona on their surface. Although it is acknowledged that molecular adsorption can influence the catalytic activity of nanozymes, there is a dearth of understanding regarding the impact of the protein corona on nanozyme activity and its determinant factors. In order to address this gap, we employed the AuNR@Pt@PDDAC [PDDAC, poly(diallyldimethylammonium chloride)] nanorod (NR) as a model nanozyme with multiple activities, including peroxidase, oxidase, and catalase-mimetic activities, to investigate the inhibitory effects of the protein corona on the catalytic activity. After the identification of major components in the plasma protein corona on the NR, we observed that spherical proteins and fibrous proteins induced distinct inhibitory effects on the catalytic activity of nanozymes. To elucidate the underlying mechanism, we uncovered that the adsorbed proteins assembled on the surface of the nanozymes, forming protein networks (PNs). Notably, the PNs derived from fibrous proteins exhibited a screen mesh-like structure with smaller pore sizes compared to those formed by spherical proteins. This structural disparity resulted in a reduced efficiency for the permeation of substrate molecules, leading to a more robust inhibition in activity. These findings underscore the significance of the protein shape as a crucial factor influencing nanozyme activity. This revelation provides valuable insights for the rational design and application of nanozymes in the biomedical fields.
Collapse
Affiliation(s)
- Yalin Cong
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences and New Cornerstone Science Laboratory, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology of China, Beijing 100049, China
- School of Future Technology, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Rongrong Qiao
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences and New Cornerstone Science Laboratory, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology of China, Beijing 100049, China
| | - Xiaofeng Wang
- Laboratory of Inflammation and Vaccines, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, Guangdong, China
| | - Yinglu Ji
- CAS Key Laboratory of Standardization and Measurement for Nanotechnology and CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology of China, Beijing 100190, China
| | - Jiacheng Yang
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences and New Cornerstone Science Laboratory, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology of China, Beijing 100049, China
| | - Didar Baimanov
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences and New Cornerstone Science Laboratory, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology of China, Beijing 100049, China
| | - Shengtao Yu
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences and New Cornerstone Science Laboratory, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology of China, Beijing 100049, China
| | - Rui Cai
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences and New Cornerstone Science Laboratory, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology of China, Beijing 100049, China
| | - Yuliang Zhao
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences and New Cornerstone Science Laboratory, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology of China, Beijing 100049, China
- The GBA National Institute for Nanotechnology Innovation, Guangzhou 510700, Guangdong, China
- Research Unit of Nanoscience and Technology, Chinese Academy of Medical Sciences, Beijing 100730, China
- School of Nanoscience and Nanotechnology, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xiaochun Wu
- CAS Key Laboratory of Standardization and Measurement for Nanotechnology and CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology of China, Beijing 100190, China
| | - Chunying Chen
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences and New Cornerstone Science Laboratory, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology of China, Beijing 100049, China
- The GBA National Institute for Nanotechnology Innovation, Guangzhou 510700, Guangdong, China
- Research Unit of Nanoscience and Technology, Chinese Academy of Medical Sciences, Beijing 100730, China
- School of Nanoscience and Nanotechnology, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Liming Wang
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences and New Cornerstone Science Laboratory, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology of China, Beijing 100049, China
| |
Collapse
|
4
|
Wang Y, Xia S, Cai R, Zhang J, Yu C, Cui J, Zhang Y, Wu J, Wu Y. Dynamic Reconstruction of Two-Dimensional Defective Bi Nanosheets for Efficient Electrocatalytic Urea Synthesis. Angew Chem Int Ed Engl 2024; 63:e202318589. [PMID: 38385612 DOI: 10.1002/anie.202318589] [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: 12/04/2023] [Revised: 02/01/2024] [Accepted: 02/20/2024] [Indexed: 02/23/2024]
Abstract
Catalyst surface dynamics drive the generation of active species for electrocatalytic reactions. Yet, the understanding of dominant site formation and reaction mechanisms is limited. In this study, we thoroughly investigate the dynamic reconstruction of two-dimensional defective Bi nanosheets from exfoliated Bi2Se3 nanosheets under electrochemical CO2 and nitrate (NO3 -) reduction conditions. The ultrathin Bi2Se3 nanosheets obtained by NaBH4-assisted cryo-mediated liquid-phase exfoliation are more easily reduced and reconstructed to Bi nanosheets with high-density grain boundaries (GBs; GB-rich Bi). The reconstructed GB-rich Bi catalyst affords a remarkable yield rate of 4.6 mmol h-1 mgcat. -1 and Faradaic efficiency of 32 % for urea production at -0.40 V vs. RHE. Notably, this yield rate is 2 and 8.2 times higher than those of the low-GB Bi and bulk Bi catalysts, respectively. Theoretical analysis demonstrates that the GB sites significantly reduce the *CO and *NH2 intermediate formation energy and C-N coupling energy barrier, enabling selective urea electrosynthesis on the GB-rich Bi catalyst. This work will trigger further research into the structure-activity interplay in dynamic processes using in situ techniques.
Collapse
Affiliation(s)
- Yan Wang
- Department School of Materials Science and Engineering, Hefei University of Technology, Hefei, 230009, China
- Institute of Energy, Hefei Comprehensive National Science Center, Anhui Energy Laboratory), Hefei, 230009, China
| | - Shuai Xia
- Department School of Materials Science and Engineering, Hefei University of Technology, Hefei, 230009, China
| | - Rui Cai
- Department School of Materials Science and Engineering, Hefei University of Technology, Hefei, 230009, China
| | - Jianfang Zhang
- Department School of Materials Science and Engineering, Hefei University of Technology, Hefei, 230009, China
| | - Cuiping Yu
- Department School of Materials Science and Engineering, Hefei University of Technology, Hefei, 230009, China
| | - Jiewu Cui
- Department School of Materials Science and Engineering, Hefei University of Technology, Hefei, 230009, China
| | - Yong Zhang
- Department School of Materials Science and Engineering, Hefei University of Technology, Hefei, 230009, China
| | - Jingjie Wu
- Department of Chemical and Environmental Engineering, University of Cincinnati, Cincinnati, OH-45221, United States
| | - Yucheng Wu
- Department School of Materials Science and Engineering, Hefei University of Technology, Hefei, 230009, China
- China International S&T Cooperation Base for Advanced Energy and Environmental Materials & Anhui Provincial International S&T Cooperation Base for Advanced Energy Materials, Key Laboratory of Advanced Functional Materials and Devices of Anhui Province, Hefei University of Technology, Hefei, 230009, China
| |
Collapse
|
5
|
Yu C, Sun J, Xia C, Wang Y, Zhang J, Cai R, Cui J, Tan HH, Zhang Y, Wu Y. Coupling ultrafine TiO 2 within pyridinic-N enriched porous carbon towards high-rate and long-life sodium ion capacitors. J Colloid Interface Sci 2024; 660:934-942. [PMID: 38280286 DOI: 10.1016/j.jcis.2024.01.080] [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: 09/25/2023] [Revised: 01/09/2024] [Accepted: 01/12/2024] [Indexed: 01/29/2024]
Abstract
Coupling TiO2 within N-doped porous carbon (NPC) is essential for enhancing its Na+ storage performance. However, the role of different N configurations in NPC in improving the electrochemical performance of TiO2 is currently unknown. In this study, melamine is deliberately incorporated as a pore-forming agent in the self-assembly process of metal organic framework precursors (NH2-MIL-125(Ti)). This intentional inclusion of melamine leads to the one-pot and in-situ formation of highly active edge-N, which is vital for the development of TiO2/NPC with exceptional reactivity. Electrochemical performance characterization and density functional theory (DFT) calculation indicate that the interaction between TiO2 and pyridinic-N enriched NPC can effectively narrow the bandgap of TiO2/NPC, thereby significantly improving electron/ion transfer. Additionally, the abundant mesoporous channels, high N content and oxygen vacancies also contribute to the fast reaction kinetics of TiO2/NPC. As a result, the optimized TiO2/NPC-M, with high proportion of pyridinic-N (44.1 %) and abundant mesoporous channels (97.8 %), delivers high specific capacity of 282.1 mA h-1 at 0.05 A g-1, superior rate capability of 177.3 mA h-1 at 10 A g-1, and prominent capacity retention of 89.3 % over 5000 cycles even under ultrahigh 10 A g-1. Furthermore, the TiO2/NPC-M//AC sodium ion capacitors (SIC) device achieves a high energy density of 136.7 Wh kg-1 at 200 W kg-1. This research not only offers fresh perspectives on the production of high-performance TiO2-based anodes, but also paves the way for customizing other active materials for energy storage and beyond.
Collapse
Affiliation(s)
- Cuiping Yu
- School of Materials Science and Engineering, Hefei University of Technology, Hefei 230009, China
| | - Jianjian Sun
- School of Materials Science and Engineering, Hefei University of Technology, Hefei 230009, China
| | - Chenhong Xia
- School of Materials Science and Engineering, Hefei University of Technology, Hefei 230009, China
| | - Yan Wang
- School of Materials Science and Engineering, Hefei University of Technology, Hefei 230009, China; Institute of Energy, Hefei Comprehensive National Science Center (Anhui Energy Laboratory), Hefei 230051, China.
| | - Jianfang Zhang
- School of Materials Science and Engineering, Hefei University of Technology, Hefei 230009, China; Key Laboratory of Advanced Functional Materials and Devices of Anhui Province, Hefei University of Technology, Hefei 230009, China
| | - Rui Cai
- School of Materials Science and Engineering, Hefei University of Technology, Hefei 230009, China
| | - Jiewu Cui
- School of Materials Science and Engineering, Hefei University of Technology, Hefei 230009, China
| | - Hark Hoe Tan
- Department of Electronic Materials Engineering, Research School of Physics, The Australian National University, Canberra, Australian Capital Territory 2601, Australia
| | - Yong Zhang
- School of Materials Science and Engineering, Hefei University of Technology, Hefei 230009, China; Key Laboratory of Advanced Functional Materials and Devices of Anhui Province, Hefei University of Technology, Hefei 230009, China
| | - Yucheng Wu
- School of Materials Science and Engineering, Hefei University of Technology, Hefei 230009, China; Key Laboratory of Advanced Functional Materials and Devices of Anhui Province, Hefei University of Technology, Hefei 230009, China; China International S&T Cooperation Base for Advanced Energy and Environmental Materials & Anhui Provincial International S&T Cooperation Base for Advanced Energy Materials, Hefei University of Technology, Hefei 230009, China.
| |
Collapse
|
6
|
Li C, Cai R, Shi W, Zhang H, Liu Z, Xie F, Chen Y, Hong Q. Comparative transcriptome analysis of ovaries and testes reveals sex-biased genes and pathways in zebrafish. Gene 2024; 901:148176. [PMID: 38242380 DOI: 10.1016/j.gene.2024.148176] [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: 10/31/2023] [Revised: 01/07/2024] [Accepted: 01/16/2024] [Indexed: 01/21/2024]
Abstract
Zebrafish (Danio rerio) is a widely recognized and extensively studied model organism in scientific research. The regulatory mechanism of gonadal development and differentiation of this species has aroused considerable attention. Nonetheless, the major sex-biased genes and pathways associated with gonadal development remain elusive. Therefore, to comprehend this intricate process, gonadal transcriptome sequencing was carried out to identify differentially expressed genes (DEGs) between the testes and ovaries of adult zebrafish. The preliminary assessment yielded a total of 23,529,272 and 23,521,368 clean reads from the cDNA libraries of ovaries and testes. Afterward, a comparative analysis of the transcriptome revealed 3,604 upregulated and 11,371 downregulated DEGs in the ovaries compared to the testes. Of these genes, 428 were exclusively expressed in females, while 3,516 were exclusively expressed in males. Additionally, further assessments were conducted to explore the functions associated with these DEGs in various biological processes. The data revealed their involvement in sex-biased pathways, such as progesterone-mediated oocyte maturation, oocyte meiosis, cytokine-cytokine receptor interaction, and cardiac muscle contraction. Finally, the expression levels of 14 sex-biased DEGs (cdc20, ccnb1, ypel3, chn1, bmp15, rspo1, tnfsf10, egfra, acta2, cox8a, gsdf, dmrt1, star, and cyp17a1) associated with the enriched pathways were subjected to further validation through qRT-PCR. The data acquired from these investigations offer valuable resources to support further exploration of the mechanisms governing sexual dimorphism and gonadal development in zebrafish.
Collapse
Affiliation(s)
- Cong Li
- Department of Hematology, The Second Affiliated Hospital of Anhui Medical University, Hefei 230032, China
| | - Rui Cai
- School of Basic Medical Sciences, Anhui Medical University, Hefei 230032, China
| | - Wenhui Shi
- School of Basic Medical Sciences, Anhui Medical University, Hefei 230032, China
| | - Hao Zhang
- School of Basic Medical Sciences, Anhui Medical University, Hefei 230032, China
| | - Zhuang Liu
- School of Basic Medical Sciences, Anhui Medical University, Hefei 230032, China
| | - Fenfen Xie
- School of Basic Medical Sciences, Anhui Medical University, Hefei 230032, China.
| | - Yuanhua Chen
- School of Basic Medical Sciences, Anhui Medical University, Hefei 230032, China.
| | - Qiang Hong
- School of Basic Medical Sciences, Anhui Medical University, Hefei 230032, China.
| |
Collapse
|
7
|
Dai J, Zhang B, Su Y, Pan Y, Ye Z, Cai R, Qin G, Kong X, Mo Y, Zhang R, Liu Z, Xie Y, Ruan X, Jiang W. Induction Chemotherapy Followed by Radiotherapy vs Chemoradiotherapy in Nasopharyngeal Carcinoma: A Randomized Clinical Trial. JAMA Oncol 2024; 10:456-463. [PMID: 38329737 PMCID: PMC10853870 DOI: 10.1001/jamaoncol.2023.6552] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Accepted: 10/23/2023] [Indexed: 02/09/2024]
Abstract
Importance Induction chemotherapy plus concurrent chemoradiotherapy is recommended for locoregionally advanced nasopharyngeal carcinoma but is associated with higher rates of acute toxic effects and low compliance. Evidence on de-escalating treatment intensity after induction chemotherapy is limited. Objective To assess if radiotherapy was noninferior to chemoradiotherapy after induction chemotherapy for locoregionally advanced nasopharyngeal carcinoma. Design, Setting, and Participants From April 2015 to March 2018, a multicenter, open-label, randomized, noninferiority, phase 3 trial was conducted at 5 Chinese hospitals. A total of 383 patients aged 18 to 70 years with an untreated histologically confirmed nonkeratinizing tumor, Karnofsky performance status score not worse than 70, proper organ function, and stage III to IVB nasopharyngeal cancer were enrolled. Data were analyzed from April 2023 to June 2023. Interventions Patients were assigned randomly. Both groups received 3 cycles of induction chemotherapy consisting of intravenous administration (on day 1) of cisplatin at 60 mg/m2 and docetaxel at 60 mg/m2 and continuous intravenous infusion (from day 1 to day 5) of daily fluorouracil (600 mg/m2), repeated every 21 days. Subsequently, the patients received radiotherapy alone (induction chemotherapy in combination with radiotherapy [IC-RT] group) or concomitant cisplatin (30 mg/m2/week) with radiotherapy for 6 to 7 weeks (induction chemotherapy combined with chemoradiotherapy [IC-CCRT] group). Main Outcomes and Measures The primary end point was 3-year progression-free survival (time from the initiation of therapy until the first indication of disease progression or death), with a noninferiority margin of 10%. The secondary end points included overall survival, locoregional failure-free survival, distant metastasis-free survival, response rate, and toxic effects. Results A total of 383 patients (median [range] age, 48 [19-70] years; 100 women [26%]). Median follow-up time was 76 months (IQR, 70-89 months). The 3-year progression-free survival was 76.2% and 76.8% in the IC-RT (n = 193) and IC-CCRT groups (n = 190), respectively, in the intention-to-treat population, showing a difference of 0.6% (95% CI, -7.9% to 9.1%; P = .01 for noninferiority). Identical outcomes were reported in the per-protocol population. The incidence of grade 3 to 4 short-term toxic effects in the IC-RT group was less than the IC-CCRT group. No differences were observed in late toxic effects. Conclusions and Relevance The results of this randomized clinical trial suggest that after induction chemotherapy for locoregionally advanced nasopharyngeal carcinoma, radiotherapy alone was noninferior to chemoradiotherapy in terms of 3-year progression-free survival. Trial Registration ClinicalTrials.gov Identifier: NCT02434614.
Collapse
Affiliation(s)
- Jinxuan Dai
- Department of Radiation Oncology, Affiliated Hospital of Guilin Medical University, Key Laboratory of Oncology (Guilin Medical University), Education Department of Guangxi Zhuang Autonomous Region, Guilin, China
| | - Bin Zhang
- Department of Radiation Oncology, Wuzhou Red Cross Hospital, Wuzhou, China
| | - Yixin Su
- Department of Radiation Oncology, Lingshan People’s Hospital, Lingshan, China
| | - Yufei Pan
- Department of Radiation Oncology, Nanxishan Hospital of Guangxi Zhuang Autonomous Region, Guilin, China
| | - Zhenkai Ye
- Department of Radiation Oncology, Mizhu Hospital of Guangxi Zhuang Autonomous Region, Affiliated Minzu Hospital of Guangxi Medical University, Nanning, China
| | - Rui Cai
- Department of Radiation Oncology, Affiliated Hospital of Guilin Medical University, Key Laboratory of Oncology (Guilin Medical University), Education Department of Guangxi Zhuang Autonomous Region, Guilin, China
| | - Guanjie Qin
- Department of Radiation Oncology, Affiliated Hospital of Guilin Medical University, Key Laboratory of Oncology (Guilin Medical University), Education Department of Guangxi Zhuang Autonomous Region, Guilin, China
| | - Xiangyun Kong
- Department of Radiation Oncology, Affiliated Hospital of Guilin Medical University, Key Laboratory of Oncology (Guilin Medical University), Education Department of Guangxi Zhuang Autonomous Region, Guilin, China
| | - Yunyan Mo
- Department of Radiation Oncology, Affiliated Hospital of Guilin Medical University, Key Laboratory of Oncology (Guilin Medical University), Education Department of Guangxi Zhuang Autonomous Region, Guilin, China
| | - Rongjun Zhang
- Department of Radiation Oncology, Affiliated Hospital of Guilin Medical University, Key Laboratory of Oncology (Guilin Medical University), Education Department of Guangxi Zhuang Autonomous Region, Guilin, China
| | - Zhengchun Liu
- Department of Radiation Oncology, Affiliated Hospital of Guilin Medical University, Key Laboratory of Oncology (Guilin Medical University), Education Department of Guangxi Zhuang Autonomous Region, Guilin, China
| | - Yuan Xie
- Department of Radiation Oncology, Wuzhou Red Cross Hospital, Wuzhou, China
| | - Xiaolan Ruan
- Department of Radiation Oncology, Nanxishan Hospital of Guangxi Zhuang Autonomous Region, Guilin, China
| | - Wei Jiang
- Department of Radiation Oncology, Affiliated Hospital of Guilin Medical University, Key Laboratory of Oncology (Guilin Medical University), Education Department of Guangxi Zhuang Autonomous Region, Guilin, China
| |
Collapse
|
8
|
Cai R, Ling L, Ghimire M, Brownell KA, Caspary DM. Tinnitus-related increases in single-unit activity in awake rat auditory cortex correlate with tinnitus behavior. Hear Res 2024; 445:108993. [PMID: 38518392 DOI: 10.1016/j.heares.2024.108993] [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: 01/25/2024] [Revised: 03/04/2024] [Accepted: 03/10/2024] [Indexed: 03/24/2024]
Abstract
Tinnitus is known to affect 10-15 % of the population, severely impacting 1-2 % of those afflicted. Canonically, tinnitus is generally a consequence of peripheral auditory damage resulting in maladaptive plastic changes in excitatory/inhibitory homeostasis at multiple levels of the central auditory pathway as well as changes in diverse nonauditory structures. Animal studies of primary auditory cortex (A1) generally find tinnitus-related changes in excitability across A1 layers and differences between inhibitory neuronal subtypes. Changes due to sound-exposure include changes in spontaneous activity, cross-columnar synchrony, bursting and tonotopic organization. Few studies in A1 directly correlate tinnitus-related changes in neural activity to an individual animal's behavioral evidence of tinnitus. The present study used an established condition-suppression sound-exposure model of chronic tinnitus and recorded spontaneous and driven single-unit responses from A1 layers 5 and 6 of awake Long-Evans rats. A1 units recorded from animals with behavioral evidence of tinnitus showed significant increases in spontaneous and sound-evoked activity which directly correlated to the animal's tinnitus score. Significant increases in the number of bursting units, the number of bursts/minute and burst duration were seen for A1 units recorded from animals with behavioral evidence of tinnitus. The present A1 findings support prior unit recording studies in auditory thalamus and recent in vitro findings in this same animal model. The present findings are consistent with sensory cortical studies showing tinnitus- and neuropathic pain-related down-regulation of inhibition and increased excitation based on plastic neurotransmitter and potassium channel changes. Reducing A1 deep-layer tinnitus-related hyperactivity is a potential target for tinnitus pharmacotherapy.
Collapse
Affiliation(s)
- Rui Cai
- Department of Pharmacology, Southern Illinois University School of Medicine, PO Box 19629, Springfield, IL 62794-9629, United States
| | - Lynne Ling
- Department of Pharmacology, Southern Illinois University School of Medicine, PO Box 19629, Springfield, IL 62794-9629, United States
| | - Madan Ghimire
- Department of Pharmacology, Southern Illinois University School of Medicine, PO Box 19629, Springfield, IL 62794-9629, United States
| | - Kevin A Brownell
- Department of Pharmacology, Southern Illinois University School of Medicine, PO Box 19629, Springfield, IL 62794-9629, United States
| | - Donald M Caspary
- Department of Pharmacology, Southern Illinois University School of Medicine, PO Box 19629, Springfield, IL 62794-9629, United States.
| |
Collapse
|
9
|
Liu Y, Shi C, Ming P, Yuan L, Jiang X, Jiang M, Cai R, Lan X, Xiao J, Tao G. Biomimetic fabrication of sr-silk fibroin co-assembly hydroxyapatite based microspheres with angiogenic and osteogenic properties for bone tissue engineering. Mater Today Bio 2024; 25:101011. [PMID: 38445010 PMCID: PMC10912917 DOI: 10.1016/j.mtbio.2024.101011] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Revised: 02/05/2024] [Accepted: 02/26/2024] [Indexed: 03/07/2024] Open
Abstract
Bone defects caused by trauma, tumor resection, or developmental abnormalities are important issues in clinical practice. The vigorous development of tissue engineering technology provides new ideas and directions for regenerating bone defects. Hydroxyapatite (HAp), a bioactive ceramic, is extensively used in bone tissue engineering because of its excellent osteoinductive performance. However, its application is challenged by its single function and conventional environment-unfriendly synthesis methods. In this study, we successfully "green" synthesized sr-silk fibroin co-assembly hydroxyapatite nanoparticles (Sr-SF-HA) using silk fibroin (SF) as a biomineralized template, thus enabling it to have angiogenic activity and achieving the combination of organic and inorganic substances. Then, the rough composite microspheres loaded with Sr-SF-HA (CS/Sr-SF-HA) through electrostatic spraying technology and freeze-drying method were prepared. The CCK-8 test and live/dead cell staining showed excellent biocompatibility of CS/Sr-SF-HA. Alkaline phosphatase (ALP) staining, alizarin red staining (ARS), immunofluorescence, western blotting, and qRT-PCR test showed that CS/Sr-SF-HA activated the expression of related genes and proteins, thus inducing the osteogenic differentiation of rBMSCs. Moreover, tube formation experiments, scratch experiments, immunofluorescence, and qRT-PCR detection indicated that CS/Sr-SF-HA have good angiogenic activity. Furthermore, in vivo studies showed that the CS/Sr-SF-HA possesses excellent biocompatibility, vascular activity, as well as ectopic osteogenic ability in the subcutaneous pocket of rats. This study indicates that the construction of CS/Sr-SF-HA with angiogenic and osteogenic properties has great potential for bone tissue engineering.
Collapse
Affiliation(s)
- Yunfei Liu
- Department of Oral and Maxillofacial Surgery, The Affiliated Stomatological Hospital, Southwest Medical University, Luzhou, 646000, China
- Luzhou Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Luzhou, 646000, China
| | - Chengji Shi
- Department of Oral and Maxillofacial Surgery, The Affiliated Stomatological Hospital, Southwest Medical University, Luzhou, 646000, China
| | - Piaoye Ming
- Luzhou Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Luzhou, 646000, China
- Department of Oral Implantology, The Affiliated Stomatological Hospital, Southwest Medical University, Luzhou, 646000, China
| | - Lingling Yuan
- Department of Oral and Maxillofacial Surgery, The Affiliated Stomatological Hospital, Southwest Medical University, Luzhou, 646000, China
- Luzhou Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Luzhou, 646000, China
| | - Xueyu Jiang
- Luzhou Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Luzhou, 646000, China
- Department of Oral Implantology, The Affiliated Stomatological Hospital, Southwest Medical University, Luzhou, 646000, China
| | - Min Jiang
- Department of Oral and Maxillofacial Surgery, The Affiliated Stomatological Hospital, Southwest Medical University, Luzhou, 646000, China
- Luzhou Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Luzhou, 646000, China
| | - Rui Cai
- Luzhou Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Luzhou, 646000, China
- Institute of Stomatology, Southwest Medical University, Luzhou, 646000, China
| | - Xiaorong Lan
- Luzhou Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Luzhou, 646000, China
- Institute of Stomatology, Southwest Medical University, Luzhou, 646000, China
| | - Jingang Xiao
- Department of Oral and Maxillofacial Surgery, The Affiliated Stomatological Hospital, Southwest Medical University, Luzhou, 646000, China
- Luzhou Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Luzhou, 646000, China
- Department of Oral Implantology, The Affiliated Stomatological Hospital, Southwest Medical University, Luzhou, 646000, China
- Institute of Stomatology, Southwest Medical University, Luzhou, 646000, China
| | - Gang Tao
- Luzhou Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Luzhou, 646000, China
- Institute of Stomatology, Southwest Medical University, Luzhou, 646000, China
| |
Collapse
|
10
|
Cai R, Feng M, Kanwat A, Furuhashi T, Wang B, Sum TC. Floquet Engineering of Excitons in Two-Dimensional Halide Perovskites via Biexciton States. Nano Lett 2024; 24:3441-3447. [PMID: 38457695 DOI: 10.1021/acs.nanolett.4c00074] [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] [Indexed: 03/10/2024]
Abstract
Layered two-dimensional halide perovskites (2DHPs) exhibit exciting non-equilibrium properties that allow the manipulation of energy levels through coherent light-matter interactions. Under the Floquet picture, novel quantum states manifest through the optical Stark effect (OSE) following intense subresonant photoexcitation. Nevertheless, a detailed understanding of the influence of strong many-body interactions between excitons on the OSE in 2DHPs remains unclear. Herein, we uncover the crucial role of biexcitons in photon-dressed states and demonstrate precise optical control of the excitonic states via the biexcitonic OSE in 2DHPs. With fine step tuning of the driven energy, we fully parametrize the evolution of exciton resonance modulation. The biexcitonic OSE enables Floquet engineering of the exciton resonance with either a blue-shift or a red-shift of the energy levels. Our findings shed new light on the intricate nature of coherent light-matter interactions in 2DHPs and extend the degree of freedom for ultrafast coherent optical control over excitonic states.
Collapse
Affiliation(s)
- Rui Cai
- Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore 637371
| | - Minjun Feng
- Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore 637371
| | - Anil Kanwat
- Energy Research Institute@NTU (ERI@N), Nanyang Technological University, 50 Nanyang Drive, Singapore 637553
| | - Tomoki Furuhashi
- Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore 637371
| | - Bo Wang
- Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore 637371
| | - Tze Chien Sum
- Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore 637371
| |
Collapse
|
11
|
Wang L, Cai R, Zhang J, Liu X, Wang S, Ge Q, Zhao Z, Yue T, Yuan Y, Wang Z. Removal of ochratoxin A in wine by Cryptococcus albidus and safety assessment of degradation products. J Sci Food Agric 2024; 104:2030-2037. [PMID: 37910399 DOI: 10.1002/jsfa.13087] [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] [Subscribe] [Scholar Register] [Received: 03/04/2023] [Revised: 09/01/2023] [Accepted: 11/01/2023] [Indexed: 11/03/2023]
Abstract
BACKGROUND Ochratoxin A (OTA) is a mycotoxin that contaminates grape-based products and is extremely harmful to the health of the host. It is effectively removed by yeast during the fermentation of wine, whereas the removal mechanism of OTA remains unclear. Therefore, the present study aimed to investigate the removal mechanism of ochratoxin A by yeast and to evaluate the safety of its degradation products. RESULTS Cryptococcus albidus (20-G) with better effect on ochratoxin A (OTA) was screened out in the main fermentation stage of wine. The results showed that 20-G removed OTA through biosorption and biodegradation. Intracellular enzymes played the main role (18.44%) and yeast cell walls adsorbed a small amount of OTA (8.44%). Furthermore, the identification of proteins in 20-G revealed that the decrease in OTA content was mainly a result of the action of peroxidase, and validation tests were carried out. By analyzing the degradation products of OTA, OTα and phenylalanine with lower toxicity were obtained. Animal experiments showed that the intervention of yeast 20-G reduced the damage and adverse effects caused by OTA toxicity to the mice. CONCLUSION The present study demonstrates the mechanism of OTA removal by 20-G and the toxicity of OTA was reduced by peroxidase in 20-G. © 2023 Society of Chemical Industry.
Collapse
Affiliation(s)
- Leran Wang
- College of Food Science and Engineering, Northwest A&F University, Xianyang, China
- Laboratory of Quality & Safety Risk Assessment for Agro-products (Yangling), Ministry of Agriculture, Xianyang, China
| | - Rui Cai
- College of Food Science and Engineering, Northwest University, Xi'an, China
| | - Jierong Zhang
- College of Food Science and Engineering, Northwest A&F University, Xianyang, China
- Laboratory of Quality & Safety Risk Assessment for Agro-products (Yangling), Ministry of Agriculture, Xianyang, China
| | - Xiaoshuang Liu
- College of Food Science and Engineering, Northwest A&F University, Xianyang, China
- Laboratory of Quality & Safety Risk Assessment for Agro-products (Yangling), Ministry of Agriculture, Xianyang, China
| | - Saiqun Wang
- College of Food Science and Engineering, Northwest A&F University, Xianyang, China
- Laboratory of Quality & Safety Risk Assessment for Agro-products (Yangling), Ministry of Agriculture, Xianyang, China
| | - Qian Ge
- Institute of Quality Standards and Testing Technology for Agricultural Products (Ningxia), Yinchuan, China
| | - Zidan Zhao
- Institute of Quality Standards and Testing Technology for Agricultural Products (Ningxia), Yinchuan, China
| | - Tianli Yue
- College of Food Science and Engineering, Northwest A&F University, Xianyang, China
- Laboratory of Quality & Safety Risk Assessment for Agro-products (Yangling), Ministry of Agriculture, Xianyang, China
- College of Food Science and Engineering, Northwest University, Xi'an, China
| | - Yahong Yuan
- College of Food Science and Engineering, Northwest A&F University, Xianyang, China
- Laboratory of Quality & Safety Risk Assessment for Agro-products (Yangling), Ministry of Agriculture, Xianyang, China
| | - Zhouli Wang
- College of Food Science and Engineering, Northwest A&F University, Xianyang, China
- Laboratory of Quality & Safety Risk Assessment for Agro-products (Yangling), Ministry of Agriculture, Xianyang, China
| |
Collapse
|
12
|
Cai R, Ma Y, Wang Z, Yuan Y, Guo H, Sheng Q, Yue T. Inactivation activity and mechanism of pulsed light against Alicyclobacillus acidoterrestris vegetative cells and spores in concentrated apple juice. Int J Food Microbiol 2024; 413:110576. [PMID: 38246025 DOI: 10.1016/j.ijfoodmicro.2024.110576] [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: 10/24/2023] [Revised: 12/24/2023] [Accepted: 01/11/2024] [Indexed: 01/23/2024]
Abstract
Alicyclobacillus acidoterrestris has received much attention due to its unique thermo-acidophilic property and implication in the spoilage of pasteurized juices. The objective of this study was to evaluate the sterilization characteristics and mechanisms of pulsed light (PL) against A. acidoterrestris vegetative cells and spores in apple juice. The results indicated that bacteria cells in apple juice (8-20°Brix) can be completely inactivated within the fluence range of 20.25-47.25 J/cm2, which mainly depended on the soluble solids content (SSC) of juice, and the spores in apple juice (12°Brix) can be completely inactivated by PL with the fluence of 54.00 J/cm2. The PL treatment can significantly increase the leakage of reactive oxygen species (ROS) and proteins from cells and spores. Fluorescence studies of bacterial adenosine triphosphate (ATP) indicated that the loss of ATP was evident. Scanning electron microscopy and confocal laser scanning microscope presented that PL-treated cells or spores had serious morphological damage, which reduced the integrity of cell membrane and led to intracellular electrolyte leakage. In addition, there were no significant negative effects on total sugars, total acids, total phenols, pH value, SSC and soluble sugars, and organic acid content decreased slightly during the PL treatment. The contents of esters and acids in aroma components had a certain loss, while that of alcohols, aldehydes and ketones were increased. These results demonstrated that PL treatment can effectively inactivate the bacteria cells and spores in apple juice with little effect on its quality. This study provides an efficient method for the inactivation of A. acidoterrestris in fruit juice.
Collapse
Affiliation(s)
- Rui Cai
- College of Food Science and Engineering, Northwest University, Xi'An, Shaanxi 710069, China
| | - Yali Ma
- College of Food Science and Engineering, Northwest A&F University, YangLing, Shaanxi 712100, China
| | - Zhouli Wang
- College of Food Science and Engineering, Northwest A&F University, YangLing, Shaanxi 712100, China.
| | - Yahong Yuan
- College of Food Science and Engineering, Northwest University, Xi'An, Shaanxi 710069, China
| | - Hong Guo
- College of Food Science and Engineering, Northwest University, Xi'An, Shaanxi 710069, China
| | - Qinglin Sheng
- College of Food Science and Engineering, Northwest University, Xi'An, Shaanxi 710069, China
| | - Tianli Yue
- College of Food Science and Engineering, Northwest University, Xi'An, Shaanxi 710069, China.
| |
Collapse
|
13
|
Ming P, Liu Y, Yu P, Jiang X, Yuan L, Cai S, Rao P, Cai R, Lan X, Tao G, Xiao J. A Biomimetic Se-nHA/PC Composite Microsphere with Synergistic Immunomodulatory and Osteogenic Ability to Activate Bone Regeneration in Periodontitis. Small 2024; 20:e2305490. [PMID: 37852940 DOI: 10.1002/smll.202305490] [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] [Subscribe] [Scholar Register] [Received: 07/01/2023] [Revised: 08/21/2023] [Indexed: 10/20/2023]
Abstract
Accumulation of reactive oxygen species (ROS) in periodontitis exacerbates the destruction of alveolar bone. Therefore, scavenging ROS to reshape the periodontal microenvironment, alleviate the inflammatory response and promote endogenous stem cell osteogenic differentiation may be an effective strategy for treating bone resorption in periodontitis. In this study, sericin-hydroxyapatite nanoparticles (Se-nHA NPs) are synthesized using a biomimetic mineralization method. Se-nHA NPs and proanthocyanidins (PC) are then encapsulated in sericin/sodium alginate (Se/SA) using an electrostatic injection technique to prepare Se-nHA/PC microspheres. Microspheres are effective in scavenging ROS, inhibiting the polarization of macrophages toward the M1 type, and inducing the polarization of macrophages toward the M2 type. In normal or macrophage-conditioned media, the Se-nHA/PC microspheres effectively promoted the osteogenic differentiation of human periodontal ligament stem cells (hPDLSCs). Furthermore, the Se-nHA/PC microspheres demonstrated anti-inflammatory effects in a periodontitis rat model by scavenging ROS and suppressing pro-inflammatory cytokines. The Se-nHA/PC microspheres are also distinguished by their capacity to decrease alveolar bone loss, reduce osteoclast activity, and boost osteogenic factor expression. Therefore, the biomimetic Se-nHA/PC composite microspheres have efficient ROS-scavenging, anti-inflammatory, and osteogenic abilities and can be used as a multifunctional filling material for inflammatory periodontal tissue regeneration.
Collapse
Affiliation(s)
- Piaoye Ming
- Department of Oral Implantology, The Affiliated Stomatological Hospital of Southwest Medical University, Luzhou, 646000, China
- Luzhou Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Luzhou, 646000, China
| | - Yunfei Liu
- Luzhou Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Luzhou, 646000, China
- Department of Oral and Maxillofacial Surgery, The Affiliated Hospital of Southwest Medical University, Luzhou, 646000, China
| | - Peiyang Yu
- Department of Oral Implantology, The Affiliated Stomatological Hospital of Southwest Medical University, Luzhou, 646000, China
- Luzhou Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Luzhou, 646000, China
| | - Xueyu Jiang
- Luzhou Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Luzhou, 646000, China
| | - Linlin Yuan
- Department of Oral Implantology, The Affiliated Stomatological Hospital of Southwest Medical University, Luzhou, 646000, China
- Luzhou Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Luzhou, 646000, China
| | - Shuyu Cai
- Department of Oral Implantology, The Affiliated Stomatological Hospital of Southwest Medical University, Luzhou, 646000, China
- Luzhou Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Luzhou, 646000, China
| | - Pengcheng Rao
- Luzhou Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Luzhou, 646000, China
- Department of Oral and Maxillofacial Surgery, The Affiliated Hospital of Southwest Medical University, Luzhou, 646000, China
| | - Rui Cai
- Luzhou Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Luzhou, 646000, China
- Institute of Stomatology, Southwest Medical University, Luzhou, 646000, China
| | - Xiaorong Lan
- Luzhou Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Luzhou, 646000, China
- Institute of Stomatology, Southwest Medical University, Luzhou, 646000, China
| | - Gang Tao
- Luzhou Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Luzhou, 646000, China
- Institute of Stomatology, Southwest Medical University, Luzhou, 646000, China
| | - Jingang Xiao
- Department of Oral Implantology, The Affiliated Stomatological Hospital of Southwest Medical University, Luzhou, 646000, China
- Luzhou Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Luzhou, 646000, China
- Department of Oral and Maxillofacial Surgery, The Affiliated Hospital of Southwest Medical University, Luzhou, 646000, China
- Institute of Stomatology, Southwest Medical University, Luzhou, 646000, China
| |
Collapse
|
14
|
Gao C, She Y, Luo M, Yue Z, Jiang Y, Hu L, Cai R, Jiang M, Wu S, Shi X, Li Y, Qiu Y, Hu Q. [Genetic characterization and drug resistance analysis of Salmonella Kentucky ST314 in Shenzhen in 2010-2021]. Wei Sheng Yan Jiu 2024; 53:243-256. [PMID: 38604960 DOI: 10.19813/j.cnki.weishengyanjiu.2024.02.011] [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] [Subscribe] [Scholar Register] [Indexed: 04/13/2024]
Abstract
OBJECTIVE To understand the prevalence, genetic characteristics and drug resistance features of Salmonella Kentucky ST314 in Shenzhen. METHODS Whole genome sequencing of 14 strains of Salmonella Kentucky ST314 collected from 2010-2021 by the Foodborne Disease Surveillance Network of Shenzhen Center for Disease Control and Prevention for phylogenetic evolutionary analysis, drug resistance gene and plasmid detection; drug susceptibility experiments were performed by micro-broth dilution method. RESULTS A total of 57 strains of Salmonella Kentucky were collected from the foodborne disease surveillance network, 14 of which were ST314. The Shenzhen isolates were clustered with isolates from Southeast Asian countries such as Vietnam and Thailand on clade 314.2, and the single nucleotide polymorphism distance between local strains in Shenzhen was large, indicating dissemination. In this study, a total of 17 drug resistance genes/mutations in 9 categories were detected in the genome of Salmonella Kentucky ST314, carrying 3 extended spectrum beta-lactamases(ESBLs), including bla_(CTX-M-24)(14.3%, 2/14), bla_(CTX-M-55)(7.1%, 1/14), and bla_(CTX-M-130)(14.3%, 2/14), all located on plasmids. Regarding quinolone resistance factors, two plasmid-mediated quinolone resistance(PMQR) genes were identified in the genome: qnrB6(71.4%, 10/14) and aac(6')Ib-cr(78.6%, 11/14), a quinolone resistance quinolone resistance-determining regions(QRDR) mutation T57 S(100%, 14/14). The multi-drug resistance rate of Salmonella Kentucky ST314 in Shenzhen was 92.86%(13/14)with the highest rate of resistance to tetracycline and cotrimoxazole(100%, 14/14), followed by chloramphenicol(92.86%, 13/14), cefotaxime and ampicillin(78.57%, 11/14), ciprofloxacin and nalidixic acid(71.43%, 10/14), and ampicillin-sulbactam had the lowest resistance rate(21.43%, 3/14). CONCLUSION ST314 is the second most prevalent ST type among Salmonella Kentucky in Shenzhen, mainly isolated from food, especially poultry; phylogenetic analysis suggests that ST314 is a disseminated infection and the genome shows a highly genetically conserved phenotype. Drug resistance of Salmonella Kentucky ST314 is very serious, especially QRDR mutation, PMQR gene co-mediated quinolone resistance and plasmid-mediated cephalosporin resistance are prominent and deserve extensive attention.
Collapse
Affiliation(s)
- Chenxi Gao
- School of Public Health, Shanxi Medical University, Taiyuan 030001, China
| | - Yiying She
- School of Public Health, Shanxi Medical University, Taiyuan 030001, China
| | - Miaomiao Luo
- School of Public Health, Shanxi Medical University, Taiyuan 030001, China
| | - Zhijiao Yue
- University of South China, Hengyang 421001, China
| | - Yixiang Jiang
- Shenzhen Center for Disease Control and Prevention, Shenzhen 518000, China
| | - Lulu Hu
- Shenzhen Center for Disease Control and Prevention, Shenzhen 518000, China
| | - Rui Cai
- Shenzhen Center for Disease Control and Prevention, Shenzhen 518000, China
| | - Min Jiang
- Shenzhen Center for Disease Control and Prevention, Shenzhen 518000, China
| | - Shuang Wu
- Shenzhen Center for Disease Control and Prevention, Shenzhen 518000, China
| | - Xiaolu Shi
- Shenzhen Center for Disease Control and Prevention, Shenzhen 518000, China
| | - Yinghui Li
- Shenzhen Center for Disease Control and Prevention, Shenzhen 518000, China
| | - Yaqun Qiu
- Shenzhen Center for Disease Control and Prevention, Shenzhen 518000, China
| | - Qinghua Hu
- School of Public Health, Shanxi Medical University, Taiyuan 030001, China Shenzhen Center for Disease Control and Prevention, Shenzhen 518000, China
| |
Collapse
|
15
|
Hu B, Zhang H, Li Y, Xue Q, Yang M, Cao C, Gao L, Chu G, Cai R, Zheng Y, Pang W. Kojic acid inhibits pig sperm apoptosis and improves capacitated sperm state during liquid preservation at 17°C. Mol Reprod Dev 2024; 91:e23738. [PMID: 38462735 DOI: 10.1002/mrd.23738] [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: 08/08/2023] [Revised: 12/28/2023] [Accepted: 01/12/2024] [Indexed: 03/12/2024]
Abstract
The parameters of sperm apoptosis and capacitation during liquid storage at 17°C can indicate the quality of pig sperm and the potential development of early embryos. However, the effect of kojic acid (KA) on semen preservation and its mechanism has not been fully understood. In this study, we discovered that adding KA to the diluent improved the antioxidant capacity of sperm mitochondria, maintained the normal structure of sperm mitochondria, and reduced sperm apoptosis. Western blot analysis revealed that KA prevented the release of Cytochrome c from mitochondria to the cytoplasm, reduced the expression of pro-apoptosis proteins cleaved Caspase-3 and cleaved Caspase-9, and increased the expression of the antiapoptosis protein Bcl-XL. Furthermore, KA also enhanced the motility parameters, oxidative phosphorylation level, adenosine triphosphate level, and protein tyrosine phosphorylation of capacitated sperm, while preserving the acrosome integrity and plasma membrane integrity of capacitated sperm. In conclusion, this study offers new insights into the molecular mechanism of how KA inhibits porcine sperm apoptosis and improves capacitated sperm parameters. Additionally, it suggests that KA can serve as an alternative to antibiotics.
Collapse
Affiliation(s)
- Bingyan Hu
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, China
| | - Haize Zhang
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, China
| | - Yuqing Li
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, China
| | - Qin Xue
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, China
| | - Menghao Yang
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, China
| | - Chaoyue Cao
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, China
| | - Lei Gao
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, China
| | - Guiyan Chu
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, China
| | - Rui Cai
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, China
| | - Yi Zheng
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, China
| | - Weijun Pang
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, China
| |
Collapse
|
16
|
Cai R, Cao X, Jiang X, Xu C. The maturity, humus content, and microbial metabolic function of sheep manure compost on the Qinghai-Tibet Plateau can be significantly improved by reducing the moisture content. Environ Sci Pollut Res Int 2024; 31:21458-21470. [PMID: 38388981 DOI: 10.1007/s11356-024-32437-4] [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] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Accepted: 02/07/2024] [Indexed: 02/24/2024]
Abstract
The Qinghai-Tibet Plateau (QTP) is characterized by an extreme hypoxia, which may lead to lack of sufficient oxygen for compost production, and thus seriously affecting the compost quality. The moisture content (MC) has a direct effect on the oxygen content of composting pile. At present, the research on the optimum moisture content of compost production on the QTP is still lacking. This study aimed to investigate the influences of MC on fermentation quality of sheep manure composting on the QTP and to further analyze the changes of microbial metabolic function and enzyme activity under different MC. Composting experiment with low MC (45%) and conventional MC (60%) was conducted in both summer and autumn. The results showed that the composting efficiency of 45% MC was better than 60% in both seasons, which was mainly manifested as longer high-temperature period (summer:16 d vs 14 d, autumn: 7 d vs 2 d), higher germination index (summer:136.1% vs 128.6%, autumn:103.5% vs 81.2%), and more humus synthesis (summer:159.8 g/kg vs 151.2 g/kg, autumn:136.1 k/kg vs 115.5 k/kg). The 45% MC can improve microbial metabolism, including increasing the abundance of functional genes involved in carbohydrate metabolism, amino acid metabolism, and nucleotide metabolism and improving the activities of cellulase, β-glucosidase, protease, polyphenol oxidase, and peroxidase. In conclusion, 45% MC can improve the fermentation efficiency and products quality of sheep manure compost on QTP.
Collapse
Affiliation(s)
- Rui Cai
- College of Engineering, China Agricultural University, No. 17 Qinghua Donglu, Haidian District, Beijing, 100083, China
| | - Xiaohui Cao
- College of Engineering, China Agricultural University, No. 17 Qinghua Donglu, Haidian District, Beijing, 100083, China
| | - Xin Jiang
- College of Engineering, China Agricultural University, No. 17 Qinghua Donglu, Haidian District, Beijing, 100083, China
| | - Chuncheng Xu
- College of Engineering, China Agricultural University, No. 17 Qinghua Donglu, Haidian District, Beijing, 100083, China.
| |
Collapse
|
17
|
Cai R, Li R, Cao X, Xu C. Available sulfur and phosphorus transformation mechanism and functional microorganisms during sheep manure composting on Qinghai-Tibet Plateau under two moisture contents. Bioresour Technol 2024; 394:130191. [PMID: 38081470 DOI: 10.1016/j.biortech.2023.130191] [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: 10/14/2023] [Revised: 12/06/2023] [Accepted: 12/08/2023] [Indexed: 02/04/2024]
Abstract
Understanding the mechanisms of sulfur and phosphorus transformation during composting is important for improving compost fertility. This study aims to investigate the microbial mechanism of available sulfur and phosphorus transformation during sheep manure composting under different moisture contents (45%: M45 and 60%: M60) on the Qinghai-Tibet Plateau using metagenomics technology. The results showed that the final available sulfur and phosphorus contents of M45 were 11% and 13% higher than those of M60, respectively. M45 enhanced sulfur oxidation, sulfate reduction, and thiosulfate disproportionation. These steps were significantly positively correlated with available sulfur, and Pseudomonas, Thermobifida, Luteimonas, Brevibacterium, Planifilum, and Xinfangfangia were the main participants. Available phosphorus was significantly positively correlated with polyphosphate degradation and inorganic P solubilization, and the main participants in these steps were Luteimonas, Brachybacterium, Corynebacterium, Jeotgalicoccus, Microbacterium, Streptomyces, and Pseudoxanthomonas. These findings reveal the microbial mechanisms of available and phosphorus transformation during composting at two moisture contents.
Collapse
Affiliation(s)
- Rui Cai
- College of Engineering, China Agricultural University, Beijing 100083, China; School of Environmental Science & Engineering, Huazhong University of Science and Technology (HUST), Wuhan, Hubei Province 430074, China
| | - Rongrong Li
- College of Environment and Life Sciences, Weinan Normal University, Weinan, Shaanxi Province 714099, China
| | - Xiaohui Cao
- College of Engineering, China Agricultural University, Beijing 100083, China
| | - Chuncheng Xu
- College of Engineering, China Agricultural University, Beijing 100083, China.
| |
Collapse
|
18
|
Cao X, Cai R, Zuo S, Niu D, Yang F, Xu C. Enhanced lignin degradation by Irpex lacteus through expanded sterilization further improved the fermentation quality and microbial community during the silage preservation process. BIORESOUR BIOPROCESS 2024; 11:14. [PMID: 38647879 PMCID: PMC10992542 DOI: 10.1186/s40643-024-00730-2] [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: 11/12/2023] [Accepted: 01/10/2024] [Indexed: 04/25/2024] Open
Abstract
Traditional autoclaving, slow degradation rate and preservation of biomass treated by fungi are the main factors restricting biological treatment. In our previous studies, strains with high efficiency and selective lignin degradation ability were obtained. To further solve the limiting factors of biological treatment, this paper proposed a composite treatment technology, which could replace autoclaves for fungal treatment and improve the preservation and utilization of fungal-pretreated straw. The autoclaved and expanded buckwheat straw were, respectively, degraded by Irpex lacteus for 14 days (CIL, EIL), followed by ensiling of raw materials (CK) and biodegraded straw of CIL and EIL samples with Lactobacillus plantarum for different days, respectively (CP, CIP, EIP). An expansion led to lactic acid bacteria, mold, and yeast of the samples below the detection line, and aerobic bacteria was significantly reduced, indicating a positive sterilization effect. Expansion before I. lacteus significantly enhanced lignin selective degradation by about 6%, and the absolute content of natural detergent solute was about 5% higher than that of the CIL. Moreover, EIL decreased pH by producing higher organic acids. The combination treatment created favorable conditions for ensiling. During ensiling, EIP silage produced high lactic acid about 26.83 g/kg DM and the highest acetic acid about 22.35 g/kg DM, and the pH value could be stable at 4.50. Expansion before I. lacteus optimized the microbial community for ensiling, resulting in EIP silage co-dominated by Lactobacillus, Pediococcus and Weissella, whereas only Lactobacillus was always dominant in CP and CIP silage. Clavispora gradually replaced Irpex in EIP silage, which potentially promoted lactic acid bacteria growth and acetic acid production. In vitro gas production (IVGP) in EIL was increased by 30% relative to CK and was higher than 24% in CIL. The role of expansion was more significant after ensiling, the IVGP in EIP was increased by 22% relative to CP, while that in CIP silage was only increased by 9%. Silage of fungal-treated samples reduced methane emissions by 28% to 31%. The study demonstrated that expansion provides advantages for fungal colonization and delignification, and further improves the microbial community and fermentation quality for silage, enhancing the nutrition and utilization value. This has practical application value for scaling up biological treatment and preserving the fungal-treated lignocellulose.
Collapse
Affiliation(s)
- Xiaohui Cao
- College of Engineering, China Agricultural University, (East Campus), 17 Qing-Hua-Dong-Lu, Haidian District, Beijing, 100083, People's Republic of China
| | - Rui Cai
- School of Environmental Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074, Hubei Province, China
| | - Sasa Zuo
- College of Engineering, China Agricultural University, (East Campus), 17 Qing-Hua-Dong-Lu, Haidian District, Beijing, 100083, People's Republic of China
| | - Dongze Niu
- Changzhou Key Laboratory of Biomass Green, Safe and High Value Utilization Technology, Institute of Urban and Rural Mining, Changzhou University, Changzhou, 213164, China
| | - Fuyu Yang
- College of Grassland Science and Technology, China Agricultural University, Beijing, 100093, People's Republic of China
| | - Chuncheng Xu
- College of Engineering, China Agricultural University, (East Campus), 17 Qing-Hua-Dong-Lu, Haidian District, Beijing, 100083, People's Republic of China.
| |
Collapse
|
19
|
Lim JWM, Guo Y, Feng M, Cai R, Sum TC. Making and Breaking of Exciton Cooling Bottlenecks in Halide Perovskite Nanocrystals. J Am Chem Soc 2024; 146:437-449. [PMID: 38158611 DOI: 10.1021/jacs.3c09761] [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: 01/03/2024]
Abstract
Harnessing quantum confinement (QC) effects in semiconductors to retard hot carrier cooling (HCC) is an attractive approach for enabling efficient hot carrier extraction to overcome the Shockley-Queisser limit. However, there is a debate about whether halide perovskite nanocrystals (PNCs) can effectively exploit these effects. To address this, we utilized pump-probe and multipulse pump-push-probe spectroscopy to investigate HCC behavior in PNCs of varying sizes and cation compositions. Our results validate the presence of an intrinsic phonon bottleneck with clear manifestations of QC effects in small CsPbBr3 PNCs exhibiting slower HCC rates compared to those of larger PNCs. However, the replacement of inorganic Cs+ with organic cations suppresses this intrinsic bottleneck. Furthermore, PNCs exhibit distinct size-dependent HCC behavior in response to changes in the cold carrier densities. We attribute this to the enhanced exciton-exciton interactions in strongly confined PNCs that facilitate Auger heating. Importantly, our findings dispel the existing controversy and provide valuable insights into design principles for engineering QC effects in PNC hot carrier applications.
Collapse
Affiliation(s)
- Jia Wei Melvin Lim
- Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore 637371, Singapore
| | - Yuanyuan Guo
- Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore 637371, Singapore
| | - Minjun Feng
- Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore 637371, Singapore
| | - Rui Cai
- Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore 637371, Singapore
| | - Tze Chien Sum
- Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore 637371, Singapore
| |
Collapse
|
20
|
Zhang J, Li Z, Wang P, Wang M, Qi Z, Yin Y, Ma H, Liu J, Wang R, Tian W, Cai R, Jin S, Jiang X, Shi Y. Diffusion-Controlled Crystal Engineering with Diverse Antisolvent Intervention for the Preparation of High-Quality Hybrid Perovskite Films. ACS Appl Mater Interfaces 2024; 16:476-484. [PMID: 38155099 DOI: 10.1021/acsami.3c12101] [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] [Indexed: 12/30/2023]
Abstract
Antisolvent engineering is routinely used to modulate the crystallization of perovskite films as they can offer an additional driving force for nucleation. Actually, the intervention of antisolvent into nucleation is thought to involve some relatively fast and complex processes, which, however, are not fully understood so far. Here, the diffusion of the organic amine cation FA+ (one dominated precursor) and its distribution in a spin-coating process in different antisolvents is simulated by the computational fluid dynamics (CFD) model. It is suggested that a moderate diffusion rate (like that in the case of toluene as an antisolvent) not only enables to form a very uniform distribution of FA+ ions on the substrate, beneficial to the uniform nucleation of the intermediate phase, but also can balance the nucleation and growth rates of the intermediate phase, thereby suppressing undesired heterogeneous nucleation and growth. Results show that the perovskite film fabricated using toluene as an antisolvent has a high quality, based on which higher power conversion efficiencies of up to 24.32% are achieved for perovskite solar cells.
Collapse
Affiliation(s)
- Jie Zhang
- State Key Laboratory of Fine Chemicals, Frontier Science Center for Smart Materials, School of Chemistry, Dalian University of Technology, Dalian 116024, Liaoning, China
| | - Zhengtao Li
- State Key Laboratory of Fine Chemicals, Frontiers Science Center for Smart Materials, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, Liaoning, China
| | - Pengfei Wang
- Key Laboratory of Materials Modification by Laser, Ion, and Electron Beams (Ministry of Education), School of Physics, Dalian University of Technology, Dalian 116024, China
| | - Minhuan Wang
- Key Laboratory of Materials Modification by Laser, Ion, and Electron Beams (Ministry of Education), School of Physics, Dalian University of Technology, Dalian 116024, China
| | - Zhibo Qi
- State Key Laboratory of Fine Chemicals, Frontiers Science Center for Smart Materials, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, Liaoning, China
| | - Yanfeng Yin
- State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Hongru Ma
- State Key Laboratory of Fine Chemicals, Frontier Science Center for Smart Materials, School of Chemistry, Dalian University of Technology, Dalian 116024, Liaoning, China
| | - Jing Liu
- Key Laboratory of Materials Modification by Laser, Ion, and Electron Beams (Ministry of Education), School of Physics, Dalian University of Technology, Dalian 116024, China
| | - Ruiting Wang
- Key Laboratory for Precision and Non-Traditional Machining Technology of Ministry of Education, Dalian University of Technology, Dalian 116024, China
| | - Wenming Tian
- State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Rui Cai
- Instrumental Analysis Center of Dalian University of Technology, Dalian University of Technology, Dalian 116024, China
| | - Shengye Jin
- State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Xiaobin Jiang
- State Key Laboratory of Fine Chemicals, Frontiers Science Center for Smart Materials, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, Liaoning, China
| | - Yantao Shi
- State Key Laboratory of Fine Chemicals, Frontier Science Center for Smart Materials, School of Chemistry, Dalian University of Technology, Dalian 116024, Liaoning, China
| |
Collapse
|
21
|
Jin X, Cai R, Wang R, Cao Y, Dai Z, Hu Z, Ge X, Tao L, Zhang L. Antibiotic Resistance Characterization and Molecular Characteristics of Enterococcus Species Isolated from Combination Probiotic Preparations in China. Foodborne Pathog Dis 2024; 21:36-43. [PMID: 37824752 DOI: 10.1089/fpd.2023.0025] [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: 10/14/2023] Open
Abstract
Enterococci can act as reservoirs for antibiotic-resistant genes that are potentially at risk of being transferred to other bacteria that inhabit in the gastrointestinal tract. The aim of this study was to determine the phenotypic and molecular characteristics of antibiotic-resistant enterococci isolated from probiotic preparations. In total, we isolated 15 suspected Enterococcus species from 5 compound probiotics, which were identified by 16S rDNA as 12 Enterococcus faecium and 3 Enterococcus faecalis. Determination of antimicrobial susceptibility by the microdilution broth method showed widespread resistance to sulfamethoxazole (100%), norfloxacin (99.3%), azithromycin (99.3%), gentamicin (86.7%), and chloramphenicol (20%). Whole genome sequencing of five resistant strains revealed that all had circular DNA chromosomes and that E. faecium J-1-A to J-4-A contained a plasmid, while E. faecalis J-5-A did not. The results of the resistance gene analysis revealed that each strain contained approximately 30 resistance genes, with the antibiotic resistance genes and the multidrug resistance efflux pump genes mdtG, lmrC, and lmrD detected in all strains. The chloramphenicol resistance genes ykkC and ykkD were first identified in E. faecalis. And there were 21, 19, 21, 21, and 29 virulence factors involved in strains, respectively. Further analysis of the gene islands (GIs) revealed that each strain contained more than 10 GIs. The above results confirm the existence of hidden dangers in the safety of probiotics and remind us to carefully select probiotic preparations containing enterococcal strains to avoid the potential spread of resistance and pathogenicity.
Collapse
Affiliation(s)
- Xin Jin
- Nanjing Institute for Food and Drug Control, Jiangsu, Nanjing, China
| | - Rui Cai
- Emergency Department, Jiangsu Province Hospital of Chinese Medicine, Jiangsu, Nanjing, China
| | - Ruirong Wang
- Nanjing Institute for Food and Drug Control, Jiangsu, Nanjing, China
| | - Yu Cao
- Nanjing Institute for Food and Drug Control, Jiangsu, Nanjing, China
| | - Zhen Dai
- Nanjing Institute for Food and Drug Control, Jiangsu, Nanjing, China
| | - Ziyan Hu
- Nanjing Institute for Food and Drug Control, Jiangsu, Nanjing, China
| | - Xiaoming Ge
- Nanjing Institute for Food and Drug Control, Jiangsu, Nanjing, China
| | - Lei Tao
- Nanjing Institute for Food and Drug Control, Jiangsu, Nanjing, China
| | - Ling Zhang
- Nanjing Institute for Food and Drug Control, Jiangsu, Nanjing, China
| |
Collapse
|
22
|
Shi X, Qiu S, Ji L, Lu H, Wu S, Chen Q, Zou X, Hu Q, Feng T, Chen S, Cui W, Xu S, Jiang M, Cai R, Geng Y, Bai Q, Huang D, Liu P. Pathogenetic characterization of a Micrococcus luteus strain isolated from an infant. Front Pediatr 2023; 11:1303040. [PMID: 38188910 PMCID: PMC10770869 DOI: 10.3389/fped.2023.1303040] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Accepted: 12/04/2023] [Indexed: 01/09/2024] Open
Abstract
Purpose To explore the clinical characteristics of Micrococcus luteus bloodstream infection in an infant and characterize the phenotype and genotype of the isolated strains, as well as seek suitable infection models for assessing virulence. Methods Clinical data was collected from an infant patient diagnosed with M. luteus bloodstream infection. Metagenomic sequencing was performed on the isolated blood sample. The strain was isolated and underwent mass spectrometry, biochemical tests, antibiotic susceptibility assays, and whole-genome sequencing. The Galleria mellonella infection model was used to assess M. luteus virulence. Results Patient responded poorly to cephalosporins, but recovered after Linezolid treatment. Metagenomic sequencing identified M. luteus as the predominant species in the sample, confirming infection. They were identified as M. luteus with a high confidence level of 98.99% using mass spectrometry. The strain showed positive results for Catalase, Oxidase, and Urea tests, and negative results for Mannose, Xylose, Lactose, Mannitol, Arginine, and Galactose tests, consistent with the biochemical profile of M. luteus reference standards. M. luteus susceptibility to 15 antibiotics was demonstrated and no resistance genes were detected. Predicted virulence genes, including clpB, were associated with metabolic pathways and the type VI secretion system. The infection model demonstrated dose-dependent survival rates. Conclusion The infant likely developed a bloodstream infection with M. luteus due to compromised immunity. Although the isolated strain is sensitive to cephalosporin antibiotics and has low pathogenicity in infection models, clinical treatment with cephalosporins was ineffective. Linezolid proved to be effective, providing valuable guidance for future clinical management of such rare infections.
Collapse
Affiliation(s)
- Xiaolu Shi
- Department of Public Health Laboratory Sciences, School of Public Health, Hengyang Medical School, University of South China, Hengyang, China
- Shenzhen Center for Disease Control and Prevention, Shenzhen, China
| | - Shuxiang Qiu
- Department of Public Health Laboratory Sciences, School of Public Health, Hengyang Medical School, University of South China, Hengyang, China
| | - Liyin Ji
- Shenzhen Center for Disease Control and Prevention, Shenzhen, China
| | - Huiqun Lu
- Department of Public Health Laboratory Sciences, School of Public Health, Hengyang Medical School, University of South China, Hengyang, China
| | - Shuang Wu
- Shenzhen Center for Disease Control and Prevention, Shenzhen, China
| | - Qiongcheng Chen
- Shenzhen Center for Disease Control and Prevention, Shenzhen, China
| | - Xuan Zou
- Shenzhen Center for Disease Control and Prevention, Shenzhen, China
| | - Qinghua Hu
- Department of Public Health Laboratory Sciences, School of Public Health, Hengyang Medical School, University of South China, Hengyang, China
- Shenzhen Center for Disease Control and Prevention, Shenzhen, China
- Shenzhen Research Center for Communicable Disease Control and Prevention, Chinese Academy of Medical Sciences, Shenzhen, China
| | - Tiejian Feng
- Shenzhen Center for Disease Control and Prevention, Shenzhen, China
| | - Shiting Chen
- School of Public Health, Shanxi Medical University, Taiyuan, China
| | - Wenkai Cui
- Department of Public Health Laboratory Sciences, School of Public Health, Hengyang Medical School, University of South China, Hengyang, China
| | - Shiqin Xu
- School of Public Health, Shanxi Medical University, Taiyuan, China
| | - Min Jiang
- Shenzhen Center for Disease Control and Prevention, Shenzhen, China
| | - Rui Cai
- Shenzhen Center for Disease Control and Prevention, Shenzhen, China
| | - Yijie Geng
- Shenzhen Center for Disease Control and Prevention, Shenzhen, China
| | - Qinqin Bai
- Department of Public Health Laboratory Sciences, School of Public Health, Hengyang Medical School, University of South China, Hengyang, China
| | - Dingjie Huang
- School of Public Health, Shanxi Medical University, Taiyuan, China
| | - Peihui Liu
- Pediatric Department, Shenzhen Maternity and Child Healthcare Hospital, Shenzhen, China
| |
Collapse
|
23
|
Cao X, Zuo S, Lin Y, Cai R, Yang F, Wang X, Xu C. Expansion Improved the Physical and Chemical Properties and In Vitro Rumen Digestibility of Buckwheat Straw. Animals (Basel) 2023; 14:29. [PMID: 38200760 PMCID: PMC10777991 DOI: 10.3390/ani14010029] [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: 11/16/2023] [Revised: 12/16/2023] [Accepted: 12/18/2023] [Indexed: 01/12/2024] Open
Abstract
The hard texture and poor palatability of straw are important factors that hinder its application in feed. Expansion is a technology that can improve the utilization of biomass, but few studies have comprehensively revealed how to change physicochemical characteristics to improve nutritional value. In this study, mechanical and chemical methods were combined to study the texture properties, rheological properties, and physicochemical structures of straw, and its utilization value was evaluated by in vitro rumen digestion. Expansion caused hemicellulose degradation, cellulose separation, and lignin redistribution, resulting in a decrease in crystallinity. The hardness and chewiness of expanded straw were reduced by 55% to 66%, significantly improving palatability. The compressive stress could be reduced by 54-73%, and the relaxation elasticity was reduced by 5% when expanded straw was compressed. The compression deformation of expanded straw was doubled compared to feedstock, and the compacting degree was improved. Expanded straw significantly improved digestibility and gas production efficiency, which was due to the pore structure increasing the attachment of rumen microorganisms; besides that, the reduction of the internal structural force of the straw reduced energy consumption during digestion. The lignin content decreased by 10%, the hardness decreased further in secondary expansion, but the digestibility did not improve significantly.
Collapse
Affiliation(s)
- Xiaohui Cao
- College of Engineering, China Agricultural University, Beijing 100083, China; (X.C.); (S.Z.)
| | - Sasa Zuo
- College of Engineering, China Agricultural University, Beijing 100083, China; (X.C.); (S.Z.)
| | - Yanli Lin
- College of Grassland Science and Technology, China Agricultural University, Beijing 100093, China; (Y.L.); (F.Y.)
| | - Rui Cai
- School of Environmental Science & Engineering, Huazhong University of Science and Technology, Wuhan 430074, China;
| | - Fuyu Yang
- College of Grassland Science and Technology, China Agricultural University, Beijing 100093, China; (Y.L.); (F.Y.)
| | - Xuekai Wang
- College of Grassland Science and Technology, China Agricultural University, Beijing 100093, China; (Y.L.); (F.Y.)
| | - Chuncheng Xu
- College of Engineering, China Agricultural University, Beijing 100083, China; (X.C.); (S.Z.)
| |
Collapse
|
24
|
Li S, Wang S, Wang L, Liu X, Wang X, Cai R, Yuan Y, Yue T, Wang Z. Unraveling symbiotic microbial communities, metabolomics and volatilomics profiles of kombucha from diverse regions in China. Food Res Int 2023; 174:113652. [PMID: 37981364 DOI: 10.1016/j.foodres.2023.113652] [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: 09/07/2023] [Revised: 10/25/2023] [Accepted: 10/31/2023] [Indexed: 11/21/2023]
Abstract
Kombucha is a natural fermented beverage (mixed system). This study aimed to unravel the signatures of kombucha in China to achieve tailor-made microbial consortium. Here, biochemical parameters, microbiome, metabolite production and volatile profile were comprehensively compared and characterized across four regions (AH, HN, SD, SX), both commonalities and distinctions were highlighted. The findings revealed that yeast species yeast Starmerella, Zygosaccharomyces, Dekkera, Pichia and bacterium Komagataeibacter, Gluconobacter were the most common microbes. Additionally, the composition, distribution and stability of microbial composition in liquid phase were superior to those in biofilm. The species diversity, differences, marker and association were analyzed across four areas. Metabolite profiles revealed a total of 163 bioactive compounds (23 flavonoids, 13 phenols), and 68 differential metabolites were screened and identified. Moreover, the metabolic pathways of phenylpropanoids biosynthesis were closely linked with the highest number of metabolites, followed by flavonoid biosynthesis. Sixty-five volatile compounds (23 esters) were identified. Finally, the correlation analysis among the microbial composition and volatile and functional metabolites showed that Komagataeibacter, Gluconolactone, Zygosacchaaromycess, Starmerella and Dekkera seemed closely related to bioactive compounds, especially Komagataeibacter displayed positive correlations with 1-hexadecanol, 5-keto-D-gluconate, L-malic acid, 6-aminohexanoate, Starmerella contributed greatly to gluconolactone, thymidine, anabasine, 2-isopropylmalic acid. Additionally, Candida was related to β-damascenone and α-terpineol, and Arachnomyces and Butyricicoccus showed the consistency of associations with specific esters and alcohols. These findings provided crucial information for creating a stable synthetic microbial community structure, shedding light on fostering stable kombucha and related functional beverages.
Collapse
Affiliation(s)
- Shiqi Li
- College of Food Science and Engineering, Northwest A&F University, YangLing, Shaanxi 712100, China; Laboratory of Quality & Safety Risk Assessment for Agro-products (YangLing), Ministry of Agriculture, Yangling, Shaanxi 712100, China
| | - Saiqun Wang
- College of Food Science and Engineering, Northwest A&F University, YangLing, Shaanxi 712100, China; Laboratory of Quality & Safety Risk Assessment for Agro-products (YangLing), Ministry of Agriculture, Yangling, Shaanxi 712100, China
| | - Leran Wang
- College of Food Science and Engineering, Northwest A&F University, YangLing, Shaanxi 712100, China; Laboratory of Quality & Safety Risk Assessment for Agro-products (YangLing), Ministry of Agriculture, Yangling, Shaanxi 712100, China
| | - Xiaoshuang Liu
- College of Food Science and Engineering, Northwest A&F University, YangLing, Shaanxi 712100, China; Laboratory of Quality & Safety Risk Assessment for Agro-products (YangLing), Ministry of Agriculture, Yangling, Shaanxi 712100, China
| | - Xingnan Wang
- College of Food Science and Engineering, Northwest A&F University, YangLing, Shaanxi 712100, China; Laboratory of Quality & Safety Risk Assessment for Agro-products (YangLing), Ministry of Agriculture, Yangling, Shaanxi 712100, China
| | - Rui Cai
- College of Food Science and Engineering, Northwest University, Xi'an, Shaanxi 710069, China
| | - Yahong Yuan
- College of Food Science and Engineering, Northwest University, Xi'an, Shaanxi 710069, China
| | - Tianli Yue
- College of Food Science and Engineering, Northwest University, Xi'an, Shaanxi 710069, China
| | - Zhouli Wang
- College of Food Science and Engineering, Northwest A&F University, YangLing, Shaanxi 712100, China; Laboratory of Quality & Safety Risk Assessment for Agro-products (YangLing), Ministry of Agriculture, Yangling, Shaanxi 712100, China.
| |
Collapse
|
25
|
Yan FF, Liu D, Cai R, Zhao L, Mao PD, Sun HY, Meng YS, Liu T. Simultaneous magneto-dielectric transitions in a fluorescent Hofmann-type coordination polymer. Dalton Trans 2023. [PMID: 38010925 DOI: 10.1039/d3dt03186a] [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: 11/29/2023]
Abstract
The design of magnetic molecular materials exhibiting multiple functions has garnered significant interest owing to their potential applications in molecular switches, sensors, and data storage devices. In this study, we synthesized a two-dimensional (2D) FeII-based Hofmann-type coordination polymer, namely {Fe(DPPE)2[Ag(CN)2]2}·2EtOH (1), using a luminescent ligand 1,1-diphenyl-2,2-di(4-pyridylbiphenyl)ethylene (DPPE). Single-crystal structural analyses and magnetic measurements revealed a thermally induced spin crossover (SCO) with the transition temperature T1/2 = 231 K. Variable-temperature fluorescence emission spectra indicated the coexistence of spin crossover and fluorescence properties. Moreover, a pronounced dielectric change (Δε' = 1.2 at 0.5 kHz) was observed during the SCO process, confirming the simultaneous magnetic and dielectric switching arising from the rearrangement of 3d electrons and deformation of the FeII-centered coordination sphere. This work provides an approach to explore the interplay between magnetic, dielectric, and fluorescence properties, and holds significance for developing multifunctional molecular materials.
Collapse
Affiliation(s)
- Fei-Fei Yan
- State Key Laboratory of Fine Chemicals, Frontier Science Center for Smart Materials, School of Chemical Engineering, Dalian University of Technology, 2 Linggong Road, Dalian 116024, China.
| | - Dan Liu
- State Key Laboratory of Fine Chemicals, Frontier Science Center for Smart Materials, School of Chemical Engineering, Dalian University of Technology, 2 Linggong Road, Dalian 116024, China.
| | - Rui Cai
- Instrumental Analysis Center, Dalian University of Technology, 2 Linggong Road, Dalian, 116024, China
| | - Liang Zhao
- State Key Laboratory of Fine Chemicals, Frontier Science Center for Smart Materials, School of Chemical Engineering, Dalian University of Technology, 2 Linggong Road, Dalian 116024, China.
| | - Pan-Dong Mao
- State Key Laboratory of Fine Chemicals, Frontier Science Center for Smart Materials, School of Chemical Engineering, Dalian University of Technology, 2 Linggong Road, Dalian 116024, China.
| | - Hui-Ying Sun
- State Key Laboratory of Fine Chemicals, Frontier Science Center for Smart Materials, School of Chemical Engineering, Dalian University of Technology, 2 Linggong Road, Dalian 116024, China.
| | - Yin-Shan Meng
- State Key Laboratory of Fine Chemicals, Frontier Science Center for Smart Materials, School of Chemical Engineering, Dalian University of Technology, 2 Linggong Road, Dalian 116024, China.
| | - Tao Liu
- State Key Laboratory of Fine Chemicals, Frontier Science Center for Smart Materials, School of Chemical Engineering, Dalian University of Technology, 2 Linggong Road, Dalian 116024, China.
| |
Collapse
|
26
|
Xu S, Wu J, Jin Y, Ji L, Zou X, Hu Q, Feng T, Wu S, Jiang Y, Chen Q, Lu H, Qiu S, Chen H, Jiang M, Cai R, Qiu Y, Shi X. Pathogenetic detection, retrospective and pathogenicity analysis of a fatal case of Vibrio vulnificus in Shenzhen, China. Gut Pathog 2023; 15:57. [PMID: 38007445 PMCID: PMC10675978 DOI: 10.1186/s13099-023-00580-x] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/01/2023] [Accepted: 10/28/2023] [Indexed: 11/27/2023] Open
Abstract
We report a 36-year-old male patient died of V. vulnificus-induced septicaemia and multiple organ failure syndrome after oyster consumption at a restaurant. We isolated and identified V. vulnificus vv16015 from the patient's blood sample and antibiotic susceptibility tests indicated sensitivity to all 21 antibiotics. Oyster samples were subsequently collected from the restaurant's supplier and three strains of V. vulnificus were isolated. Whole genome sequencing and analysis revealed vv16015 to be distantly related to these strains and confirmed that V. vulnificus contamination was present in the seafood of the restaurant and supplier. Using a Galleria mellonella larvae infection model, the virulence of vv16015 was determined to be higher than that of comparison strains isolated from a surviving patient (vv15018) and an oyster (vv220015). The human and environment distribution of V. vulnificus in Shenzhen is sporadic and heterogeneous, and vv16015 is highly virulent compared to other strains.
Collapse
Affiliation(s)
- Shiqin Xu
- School of Public Health, Shanxi Medical University, 030001, Taiyuan, China
| | - Jinsong Wu
- Shenzhen People's Hospital, Shenzhen, 518020, China
| | - Ying Jin
- Shenzhen Bao'an District Songgang People's Hospital, Shenzhen, 518105, China
| | - Liyin Ji
- School of Public Health, Shanxi Medical University, 030001, Taiyuan, China
| | - Xuan Zou
- Shenzhen Center for Disease Control and Prevention, Shenzhen, 518055, China
| | - Qinghua Hu
- Shenzhen Center for Disease Control and Prevention, Shenzhen, 518055, China
| | - Tiejian Feng
- Shenzhen Center for Disease Control and Prevention, Shenzhen, 518055, China
| | - Shuang Wu
- Shenzhen Center for Disease Control and Prevention, Shenzhen, 518055, China
| | - Yixiang Jiang
- Shenzhen Center for Disease Control and Prevention, Shenzhen, 518055, China
| | - Qiongcheng Chen
- Shenzhen Center for Disease Control and Prevention, Shenzhen, 518055, China
| | - Huiqun Lu
- School of Public Health, University of South China, 421001, Hengyang, China
| | - Shuxiang Qiu
- School of Public Health, University of South China, 421001, Hengyang, China
| | | | - Min Jiang
- Shenzhen Center for Disease Control and Prevention, Shenzhen, 518055, China
| | - Rui Cai
- Shenzhen Center for Disease Control and Prevention, Shenzhen, 518055, China
| | - Yaqun Qiu
- Shenzhen Center for Disease Control and Prevention, Shenzhen, 518055, China
| | - Xiaolu Shi
- School of Public Health, Shanxi Medical University, 030001, Taiyuan, China.
- Shenzhen Center for Disease Control and Prevention, Shenzhen, 518055, China.
- Shenzhen Research Center for Communicable Disease Control and Prevention, Chinese Academy of Medical Sciences, Shenzhen, China.
| |
Collapse
|
27
|
Cai R. Letter to the Editor on: Community Reintegration After Rehabilitation for Hip Fracture: A Systematic Review and Meta-analysis. Arch Phys Med Rehabil 2023; 104:1967-1968. [PMID: 37611649 DOI: 10.1016/j.apmr.2023.07.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Accepted: 07/20/2023] [Indexed: 08/25/2023]
Affiliation(s)
- Rui Cai
- Department of Joint Surgery, The Central Hospital of Enshi Tujia and Miao Autonomous Prefecture, Enshi, China.
| |
Collapse
|
28
|
Wang Y, Ye S, Lim JWM, Giovanni D, Feng M, Fu J, Krishnamoorthy HNS, Zhang Q, Xu Q, Cai R, Sum TC. Carrier multiplication in perovskite solar cells with internal quantum efficiency exceeding 100. Nat Commun 2023; 14:6293. [PMID: 37813878 PMCID: PMC10562407 DOI: 10.1038/s41467-023-41758-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [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: 07/15/2023] [Accepted: 09/18/2023] [Indexed: 10/11/2023] Open
Abstract
Carrier multiplication (CM) holds great promise to break the Shockley-Queisser limit of single junction photovoltaic cells. Despite compelling spectroscopic evidence of strong CM effects in halide perovskites, studies in actual perovskite solar cells (PSCs) are lacking. Herein, we reconcile this knowledge gap using the testbed Cs0.05FA0.5MA0.45Pb0.5Sn0.5I3 system exhibiting efficient CM with a low threshold of 2Eg (~500 nm) and high efficiency of 99.4 ± 0.4%. Robust CM enables an unbiased internal quantum efficiency exceeding 110% and reaching as high as 160% in the best devices. Importantly, our findings inject fresh insights into the complex interplay of various factors (optical and parasitic absorption losses, charge recombination and extraction losses, etc.) undermining CM contributions to the overall performance. Surprisingly, CM effects may already exist in mixed Pb-Sn PSCs but are repressed by its present architecture. A comprehensive redesign of the existing device configuration is needed to leverage CM effects for next-generation PSCs.
Collapse
Affiliation(s)
- Yue Wang
- Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371, Singapore
| | - Senyun Ye
- Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371, Singapore
| | - Jia Wei Melvin Lim
- Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371, Singapore
| | - David Giovanni
- Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371, Singapore
| | - Minjun Feng
- Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371, Singapore
| | - Jianhui Fu
- Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371, Singapore
| | - Harish N S Krishnamoorthy
- Centre for Disruptive Photonic Technologies, TPI, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore, 637371, Singapore
- Tata Institute of Fundamental Research-Hyderabad, Sy. No. 36/P, Gopanapally Village, Serilingampally Mandal, Hyderabad, 500046, India
| | - Qiannan Zhang
- Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371, Singapore
| | - Qiang Xu
- Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371, Singapore
| | - Rui Cai
- Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371, Singapore
| | - Tze Chien Sum
- Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371, Singapore.
| |
Collapse
|
29
|
Li R, He Z, Yan W, Yu H, Yi X, Sha Y, Zhang Q, Cai R, Pang W. Tricaprylin, a medium-chain triglyceride, aggravates high-fat diet-induced fat deposition but improves intestinal health. Food Funct 2023; 14:8797-8813. [PMID: 37675852 DOI: 10.1039/d3fo01749d] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/08/2023]
Abstract
Medium-chain triglycerides (MCTs) are absorbed and metabolized more rapidly than long-chain triglycerides (LCTs) and therefore are considered to have obesity-prevention potential in foods. The effect of adding tricaprylin, an MCT, to food on fat deposition and intestinal health is uncharted. In this study, mice were randomly divided into four groups and fed a normal diet (ND), ND with tricaprylin, a high-fat diet (HFD), or HFD with tricaprylin. Supplementation of 2% tricaprylin in HFD significantly increased the body weight, fat mass, liver weight, adipocyte size in adipose tissue and liver, and upregulated genes related to fat deposition. Metabolomic analysis of serum and adipose tissue revealed that tricaprylin significantly increased the contents of metabolites related to lipid metabolism, triglyceride storage, and fat deposition related signaling pathways. In vitro experiments and molecular docking analysis suggest that octanoic acid, a primary decomposition product of tricaprylin, may promote adipogenic differentiation of preadipocytes by acting as a PPARγ ligand to activate the expression of lipogenesis-related genes. Although supplementation with 2% tricaprylin in HFD cannot reduce fat deposition, it has a beneficial effect on intestinal health. Tricaprylin improved intestinal morphology, digestive enzyme activity, short-chain fatty acid concentration, and intestinal barrier function-related protein expression, while reducing inflammatory factor levels and the abundance of harmful intestinal microorganisms.
Collapse
Affiliation(s)
- Rui Li
- Laboratory of Animal Fat Deposition and Muscle Development, Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, No. 22, Xinong Road, Yangling, Shaanxi, 712100, China.
| | - Zhaozhao He
- Laboratory of Animal Fat Deposition and Muscle Development, Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, No. 22, Xinong Road, Yangling, Shaanxi, 712100, China.
| | - Wenyong Yan
- Laboratory of Animal Fat Deposition and Muscle Development, Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, No. 22, Xinong Road, Yangling, Shaanxi, 712100, China.
| | - He Yu
- Laboratory of Animal Fat Deposition and Muscle Development, Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, No. 22, Xinong Road, Yangling, Shaanxi, 712100, China.
| | - Xudong Yi
- Laboratory of Animal Fat Deposition and Muscle Development, Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, No. 22, Xinong Road, Yangling, Shaanxi, 712100, China.
| | - Yiwen Sha
- Laboratory of Animal Fat Deposition and Muscle Development, Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, No. 22, Xinong Road, Yangling, Shaanxi, 712100, China.
| | - Qiming Zhang
- Laboratory of Animal Fat Deposition and Muscle Development, Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, No. 22, Xinong Road, Yangling, Shaanxi, 712100, China.
| | - Rui Cai
- Laboratory of Animal Fat Deposition and Muscle Development, Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, No. 22, Xinong Road, Yangling, Shaanxi, 712100, China.
| | - Weijun Pang
- Laboratory of Animal Fat Deposition and Muscle Development, Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, No. 22, Xinong Road, Yangling, Shaanxi, 712100, China.
| |
Collapse
|
30
|
Wang G, Zhang G, Zhu N, Zhu C, Kang M, Zuo G, Niu Z, Ye W, Tian B, Cai R. Integrative analyses of RNA-seq and ChIP-seq Reveal MITF as a Target Gene of TFPI-2 in MDA231 Cells. Biochem Genet 2023; 61:1745-1757. [PMID: 36787085 DOI: 10.1007/s10528-023-10340-w] [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: 04/27/2022] [Accepted: 01/27/2023] [Indexed: 02/15/2023]
Abstract
Breast cancer is the most prevalent cancer in female patients worldwide. Tissue factor pathway inhibitor 2 (TFPI-2) is identified as an important tumor suppressor in various cancers. Recent studies have shown that TFPI-2 translocates into the nucleus, where it modulates the transcription of the matrix metalloproteinase-2 (MMP-2) gene. However, its biological role and molecular mechanisms in the progression of breast cancer remain unclear. In this study, we identified 5125 differentially expressed genes (DEGs) from RNA sequencing (RNA-seq) in TFPI-2-overexpressing MDA231 cells compared with control cells. Gene ontology and Kyoto encyclopedia of genes and genomes (KEGG) analysis shown that cell cycle, cell differentiation, proteoglycans in cancer, and pathways associated with cancer were highly enriched in downregulated DEGs. Integration of the RNA-seq and ChIP-sequencing (ChIP-seq) data identified 73 genes directly controlled by TFPI-2 in MDA231 cells. Among them, melanocyte inducing transcription factor (MITF) gene expression was repressed by TFPI-2, which was further verified by a luciferase reporter assay and ChIP-quantitative PCR. Our study provides evidence of a novel role of TFPI-2 in human breast cancer involving targeting of the MITF.
Collapse
Affiliation(s)
- Guangli Wang
- Department of Genetics and Precision Medicine Laboratory, Affiliated Hospital of Guilin Medical University, Guilin, 541001, Guangxi, People's Republic of China.
| | - Gaofeng Zhang
- Department of Radiation Oncology, Affiliated Hospital of Guilin Medical University, Guilin, 541001, Guangxi, People's Republic of China
| | - Ningxia Zhu
- Department of Pathology and Physiopathology, Guilin Medical University, Guilin, 541004, Guangxi, People's Republic of China.
| | - Chunjiang Zhu
- Department of Genetics and Precision Medicine Laboratory, Affiliated Hospital of Guilin Medical University, Guilin, 541001, Guangxi, People's Republic of China
| | - Mafei Kang
- Department of Medical Oncology, The Affiliated Hospital of Guilin Medical University, Guilin, 541001, Guangxi, People's Republic of China
| | - Guidan Zuo
- Department of Radiation Oncology, Affiliated Hospital of Guilin Medical University, Guilin, 541001, Guangxi, People's Republic of China
| | - Zhijie Niu
- Department of Radiation Oncology, Affiliated Hospital of Guilin Medical University, Guilin, 541001, Guangxi, People's Republic of China
| | - Wei Ye
- Department of Genetics and Precision Medicine Laboratory, Affiliated Hospital of Guilin Medical University, Guilin, 541001, Guangxi, People's Republic of China
| | - Baodong Tian
- Department of Genetics and Precision Medicine Laboratory, Affiliated Hospital of Guilin Medical University, Guilin, 541001, Guangxi, People's Republic of China
| | - Rui Cai
- Department of Radiation Oncology, Affiliated Hospital of Guilin Medical University, Guilin, 541001, Guangxi, People's Republic of China
| |
Collapse
|
31
|
Chen J, Xie JR, Xu FF, Cai G, Wang SB, Huang XB, Zhu QW, Zhao YT, Lin Q, Ye M, Yao Y, Yu B, Xu HP, Cai R, Qi WX, Xu C, Cao L. Quality Assurance of Protocol Compliance in a Multicenter Randomized Trial Investigating the Role of Hypofractionated Comprehensive Reginal Nodal Irradiation in Node-Positive Breast Cancer (HARVEST). Int J Radiat Oncol Biol Phys 2023; 117:e168-e169. [PMID: 37784772 DOI: 10.1016/j.ijrobp.2023.06.1007] [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: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) The HARVEST trial (NCT03829553) is a phase III, multicenter, randomized clinical trial to explore efficacy and safety of hypofractionated irradiation (HFI) involving regional nodal irradiation (RNI, including internal mammary nodes, IMN) in N+ breast cancer patients treated with mastectomy or breast conserving surgery (BCS). Current study aims to analyze the dosimetric quality assurance so as to evaluate the compliance to the trial protocol. MATERIALS/METHODS Eligible patients were randomly assigned (1:1) to receive conventional fractionated irradiation (CFI: 50 Gy/25Fx) or HFI (40.05 Gy/15Fx), which is delivered to ipsilateral chest wall or whole breast (CW/WB) with tumor bed boost (HFI: 10.68 Gy/4Fx; CFI: 10 Gy/5Fx) and comprehensive RNI (supra/infraclavicular nodes and IMN in each patient, lower axilla if indicated) by using IMRT technique. The plan quality was evaluated based on dose distribution, dose volume histogram (DVH) and field parameters. The target coverage, including planning target volume of CW/WB (PTV1) and tumor bed (PTV2) and doses of the organs at risk (OARs) were evaluated. The LQ model was used to convert doses of OARs in HFI group using α/β = 3 Gy (EQD23) for comparison. RESULTS Between Feb 21, 2019 and Feb 14, 2022, 801 patients were enrolled at 8 centers with 401 and 400 in CFI and HFI group, respectively. There were 182 patients received BCS and 387 patients were with more than three positive lymph nodes. In the CFI group, the D90 and V45 of PTV1 reached the prescribed dose in 70.6% and 96.0% of the patients, respectively. In the HFI group, the D90 and V36 of PTV1 reached the prescribed dose in 87.8% and 95.5% of the patients, respectively. When the tumor bed was irradiated, the D90 of PTV2 reached the prescribed dose in 95.6% in the CFI group and 100% in the HFI group, respectively. The mean D90 of PTV1 and PTV2 were 50.09±0.65 Gy and 60.63±0.91 Gy in CFI group while 40.11±0.56 Gy and 50.79±2.03 Gy in HFI group. For OARs constraints, protocol compliance was all above 95% (heart: 95.3%; ipsilateral lung: 95.5%; contralateral lung: 97.1%; humeral head: 98.2% and spinal cord: 100%) with no significant difference between CFI and HFI groups. For patients with left-sided breast cancer, the Dmean of the heart was 5.10±1.75 Gy vs. 4.59±1.86 Gy (EQD23) in CFI and HFI groups (p = 0.51), respectively. No significant differences in Dmean of the heart (1.45±0.71 Gy vs. 1.33±0.77 Gy (EQD23), p = 0.40) was found either between two groups in right-sided patients. The differences were significant in the Dmean of the ipsilateral lung (13.37±1.99 Gy vs. 11.17±3.50 Gy (EQD23), p<0.01), contralateral lung (0.88±0.73 Gy vs. 0.74±0.61 Gy (EQD23), p<0.01) and the ipsilateral humeral head (15.27±7.62 Gy vs. 13.05±6.19 Gy (EQD23), p<0.01) and the Dmax of spinal cord (21.40±8.82 Gy vs. 19.47±7.99 Gy (EQD23), p = 0.05) between CFI and HFI groups. CONCLUSION A high degree of compliance with protocol dose constraints was found for treatment plans in the HARVEST trial and doses to the most of OARs decreased in HFI group.
Collapse
Affiliation(s)
- J Chen
- Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - J R Xie
- Department of Radiation Oncology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - F F Xu
- Department of Radiation Oncology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - G Cai
- Department of Radiation Oncology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - S B Wang
- Department of Radiation Oncology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - X B Huang
- Department of Radiation Oncology, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Q W Zhu
- Department of Radiation Oncology, Affiliated Tumor Hospital of Nantong University, Nantong, China
| | - Y T Zhao
- Department of Radiation Oncology, Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu, China
| | - Q Lin
- Department of Radiation Oncology, Shanghai Tenth People's Hospital, Shanghai, China
| | - M Ye
- Renji Hospital Affiliated Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Y Yao
- Department of Radiotherapy, Shanghai Ninth People's Hospital, Shanghai, China
| | - B Yu
- Department of Radiotherapy, the Affiliated Jiangyin Hospital of Nantong University, Jiangyin, China
| | - H P Xu
- Department of Radiation Oncology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - R Cai
- Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - W X Qi
- Department of Radiation Oncology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - C Xu
- Department of Radiation Oncology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - L Cao
- Department of Radiation Oncology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| |
Collapse
|
32
|
Feng M, Ye S, Lim JWM, Guo Y, Cai R, Zhang Q, He H, Sum TC. Insights to Carrier-Phonon Interactions in Lead Halide Perovskites via Multi-Pulse Manipulation. Small 2023; 19:e2301831. [PMID: 37279774 DOI: 10.1002/smll.202301831] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Revised: 04/27/2023] [Indexed: 06/08/2023]
Abstract
A fundamental understanding of the hot-carrier dynamics in halide perovskites is crucial for unlocking their prospects for next generation photovoltaics. Presently, a coherent picture of the hot carrier cooling process remains patchy due to temporally overlapping contributions from many-body interactions, multi-bands, band gap renormalization, Burstein-Moss shift etc. Pump-push-probe (PPP) spectroscopy recently emerges as a powerful tool complementing the ubiquitous pump-probe (PP) spectroscopy in the study of hot-carrier dynamics. However, limited information from PPP on the initial excitation density and carrier temperature curtails its full potential. Herein, this work bridges this gap in PPP with a unified model that retrieves these essential hot carrier metrics like initial carrier density and carrier temperature under the push conditions, thus permitting direct comparison with traditional PP spectroscopy. These results are well-fitted by the phonon bottleneck model, from which the longitudinal optical phonon scattering time τLO , for MAPbBr3 and MAPbI3 halide perovskite thin film samples are determined to be 240 ± 10 and 370 ± 10 fs, respectively.
Collapse
Affiliation(s)
- Minjun Feng
- Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371, Singapore
| | - Senyun Ye
- Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371, Singapore
| | - Jia Wei Melvin Lim
- Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371, Singapore
- Energy Research Institute @NTU (ERI@N), Interdisciplinary Graduate School, Nanyang Technological University, 50 Nanyang Avenue, S2-B3a-01, Singapore, 639798, Singapore
| | - Yuanyuan Guo
- Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371, Singapore
| | - Rui Cai
- Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371, Singapore
| | - Qiannan Zhang
- Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371, Singapore
| | - Huajun He
- Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371, Singapore
| | - Tze Chien Sum
- Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371, Singapore
| |
Collapse
|
33
|
Ou D, Cai R, Qi WX, Chen JY, Xu HP. Toripalimab Combined with Chemoradiotherapy for Locally Advanced Cervical Squamous Cell Carcinoma Patients: Early Results of Safety and Feasibility. Int J Radiat Oncol Biol Phys 2023; 117:S40. [PMID: 37784493 DOI: 10.1016/j.ijrobp.2023.06.311] [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: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) To assess the safety and efficacy of toripalimab combined with chemoradiotherapy for locally advanced cervical squamous cell carcinoma. MATERIALS/METHODS Twenty-two locally advanced cervical cancer patients, regardless of programmed death ligand-1 (PD-L1) status, received toripalimab treatment combined with concurrent chemoradiotherapy (CCRT), includes cisplatin (40 mg/m2, once a week for 5 weeks), radiotherapy (45-50.4 Gy/25-28Fx, 5 fractions a week, followed by brachytherapy 24-30 Gy/3-5Fx) and toripalimab (240mg on day 1, 22 and 43). The primary endpoints were safety and 2-year progression-free survival (PFS). RESULTS The median age was 55 years old (42 to 72), with 2 patients in FIGO stage Ⅱ, 15 patients in stage ⅢC, and 5 patients in stage ⅣA. All patients completed CCRT successfully. Grade Ⅲ and higher adverse events (AEs) were observed in 11 patients (11/22, 50%), and no patient had a grade Ⅴ AE. The most frequent grade Ⅲ AE was leukopenia (8/22, 36.4%). The most common immunotherapy-related adverse event was hypothyroidism (2/22, 9.1%). The objective response rate (ORR) was 100%. At data cutoff (Sep 30, 2022), the median follow-up was 19.7 months (7.67 to 26.1 months). The LC and the PFS rate were 95.5% and 81.8%, and the OS rate was 90.9%. The patients with baseline absolute lymphocyte count (ALC) ≤1.255 × 10^9/L had significant higher rates of metastasis than those with ALC >1.255 × 10^9/L (42.9% vs 0%, p = 0.023). CONCLUSION Toripalimab combined with CCRT achieved good tolerance and demonstrated promising anti-tumor effects in patients with locally advanced cervical cancer. Longer follow-up results and further phase Ⅱ/Ⅲ studies are expected. Chinese Clinical Trial Registry number, ChiCTR2000032879.
Collapse
Affiliation(s)
- D Ou
- Department of Radiation Oncology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - R Cai
- Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - W X Qi
- Department of Radiation Oncology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - J Y Chen
- Department of Radiation Oncology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - H P Xu
- Department of Radiation Oncology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| |
Collapse
|
34
|
Li S, Qi W, Cao L, Xu C, Cai R, Chen J, Cai G. Nodal Response to Neo-Adjuvant Systemic Therapy Predicts Prognosis of cN3c Breast Cancer Patients Receiving Multidisciplinary Therapy. Int J Radiat Oncol Biol Phys 2023; 117:e191. [PMID: 37784828 DOI: 10.1016/j.ijrobp.2023.06.1055] [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: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) cN3c breast cancer with ipsilateral supraclavicular (SCV) lymph nodal (SCLN) metastasis has a dismal prognosis. We investigated the survival outcomes, patterns and risks of recurrence in those patients after multidisciplinary therapy, as well as the predictors of candidates for SCV area boosting. MATERIALS/METHODS Consecutive cN3c breast cancer patients without distant metastases from January 2009 to December 2020 in our institution were retrospectively reviewed. Based on nodal response to neoadjuvant therapy (NAT), patients were categorized into three groups: clinical complete response (cCR) not achieved in SCLN (Group A, n = 66), SCLN cCR but axillary node (ALN) did not achieve pathological complete response (pCR, Group B, n = 34), cCR in SCLN and pCR in ALN (Group C, n = 13). RESULTS The median follow-up time was 32.7 months (range, 21.9-53.3months). The 5-year overall survival (OS) and recurrence-free survival (RFS) rates were 64.6% and 43.7% respectively. Multivariate analysis showed cumulative SCV dose and ypT stage, ALN response and SCV response to NAT were significantly associated with OS and RFS respectively. The 3-year for patients receiving the cumulative SCV dose of ≥60 Gy versus <60 Gy was 81.3% versus 69.0% (P = 0.042). Compared with Group A or B, Group C showed significantly improved RFS (3y-RFS: 53.8% vs 73.6% vs 100%, p = 0.003) and a numerically longer OS (3y-OS: 73.4% vs 86.7% vs 100%, p = 0.089). Meanwhile, Group C showed the lowest rate of DM as first failure (37.9 % vs 23.5% vs 0 in group A, B and C, respectively, p = 0.010). In patients of Group A, the 3-year OS rates for patients receiving the cumulative SCV dose of ≥60 Gy versus <60 Gy was 78.0% versus 57.3% (p = 0.029). CONCLUSION Nodal response to NAT is an independent prognostic factor for survival and pattern of failure. cN3c breast cancer patients with SCLN cCR and ALN pCR after NAT are potentially curable. A cumulative SCV dose of ≥60 Gy is positively associated with improved OS, especially in patients of SCLN without achieving cCR. Our data supports the perspective of optimizing radiotherapeutic strategy based on nodal response.
Collapse
Affiliation(s)
- S Li
- Department of Radiation Oncology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - W Qi
- Department of Radiation Oncology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - L Cao
- Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - C Xu
- Department of Radiation Oncology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - R Cai
- Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - J Chen
- Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - G Cai
- Department of Radiation Oncology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| |
Collapse
|
35
|
Li S, Wang X, Luo Y, Chen Z, Yue T, Cai R, Muratkhan M, Zhao Z, Wang Z. A green versatile packaging based on alginate and anthocyanin via incorporating bacterial cellulose nanocrystal-stabilized camellia oil Pickering emulsions. Int J Biol Macromol 2023; 249:126134. [PMID: 37543266 DOI: 10.1016/j.ijbiomac.2023.126134] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [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: 07/30/2023] [Accepted: 08/02/2023] [Indexed: 08/07/2023]
Abstract
This study aims to develop a versatile intelligent packaging based on alginate (Alg) and anthocyanin (Ant) by incorporating bacterial cellulose nanocrystal-stabilized camellia oil Pickering emulsions. Firstly, bacterial cellulose nanocrystals (BCNs) matrix produced from kombucha was incorporated with camellia oil into via ultrasonic triggering, forming a stable and multifunctional camellia oil-bacterial cellulose nanocrystal Pickering nanoemulsions (CBPE). The microstructure and rheology results of the emulsion confirmed the stabilized preparation of CBPE. Subsequently, the CBPE was integrated into the three-dimensional network structure composed of alginate/anthocyanin. The composite film (Alg-Ant-CBPE) was designed through Ca2+ crosslinking, intermolecular hydrogen bonding and dehydration condensation. The fabricated color indicator films with different concentrations of CBPE (0.1 %-0.4 %), showed varying degree of improvement in hydrophobicity, UV shielding, mechanical strength, thermal stability, water vapor barrier properties and antioxidant capacities. When applied to yogurt, the Alg-Ant-CBPE4 exhibited more pronounced color changes compared to Alg-Ant, enabling visual detection of food freshness. In conclusion, the incorporation of Pickering nanoemulsion provides an effective and promising approach to enhance the performance of polysaccharide-based intelligent packaging.
Collapse
Affiliation(s)
- Shiqi Li
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi 712100, China; Laboratory of Quality & Safety Risk Assessment for Agro-products (Yangling), Ministry of Agriculture, Yangling, Shaanxi 712100, China
| | - Xingnan Wang
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi 712100, China; Laboratory of Quality & Safety Risk Assessment for Agro-products (Yangling), Ministry of Agriculture, Yangling, Shaanxi 712100, China
| | - Yong Luo
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi 712100, China; Laboratory of Quality & Safety Risk Assessment for Agro-products (Yangling), Ministry of Agriculture, Yangling, Shaanxi 712100, China
| | - Zilin Chen
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi 712100, China; Laboratory of Quality & Safety Risk Assessment for Agro-products (Yangling), Ministry of Agriculture, Yangling, Shaanxi 712100, China
| | - Tianli Yue
- College of Food Science and Engineering, Northwest University, Xi'an, Shaanxi 710069, China
| | - Rui Cai
- College of Food Science and Engineering, Northwest University, Xi'an, Shaanxi 710069, China
| | - Marat Muratkhan
- Department of Food Technology and Processing Products, Technical Faculty, Saken Seifullin Kazakh Agrotechnical University, Zhenis Avenue, 62, Nur-Sultan 010000, Kazakhstan
| | - Zidan Zhao
- Institute of Quality Standards and Testing Technology for Agricultural Products (Ningxia), Yinchuan 750002, Ningxia, China.
| | - Zhouli Wang
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi 712100, China; Laboratory of Quality & Safety Risk Assessment for Agro-products (Yangling), Ministry of Agriculture, Yangling, Shaanxi 712100, China.
| |
Collapse
|
36
|
Yi X, Cai R, Shaoyong W, Wang G, Yan W, He Z, Li R, Chao M, Zhao T, Deng L, Yang G, Pang W. Melatonin promotes gut anti-oxidative status in perinatal rat by remodeling the gut microbiome. Redox Biol 2023; 65:102829. [PMID: 37527604 PMCID: PMC10407234 DOI: 10.1016/j.redox.2023.102829] [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: 07/07/2023] [Accepted: 07/25/2023] [Indexed: 08/03/2023] Open
Abstract
Gut health is important for nutrition absorption, reproduction, and lactation in perinatal and early weaned mammals. Although melatonin functions in maintaining circadian rhythms and preventing obesity, neurodegenerative diseases, and viral infections, its impact on the gut microbiome and its function in mediating gut health through gut microbiota remain largely unexplored. In the present study, the microbiome of rats was monitoring after fecal microbiota transplantation (FMT) and foster care (FC). The results showed that FMT and FC increased intestinal villus height/crypt depth in perinatal rats. Mechanistically, the melatonin-mediated remodeling of gut microbiota inhibited oxidative stress, which led to attenuation of autophagy and inflammation. In addition, FMT and FC encouraged the growth of more beneficial intestinal bacteria, such as Allobaculum, Bifidobacterium, and Faecalibaculum, which produce more short-chain fatty acids to strengthen intestinal anti-oxidation. These findings suggest that melatonin-treated gut microbiota increase the production of SCFAs, which improve gut health by reducing oxidative stress, autophagy and inflammation. The transfer of melatonin-treated gut microbiota may be a new and effective method by which to ameliorate gut health in perinatal and weaned mammals.
Collapse
Affiliation(s)
- Xudong Yi
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Rui Cai
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Weike Shaoyong
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Guoyan Wang
- Innovative Research Team of Animal Nutrition & Healthy Feeding, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Wenyong Yan
- Innovative Research Team of Animal Nutrition & Healthy Feeding, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Zhaozhao He
- Innovative Research Team of Animal Nutrition & Healthy Feeding, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Ri Li
- Innovative Research Team of Animal Nutrition & Healthy Feeding, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Mingkun Chao
- Innovative Research Team of Animal Nutrition & Healthy Feeding, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Tiantian Zhao
- Innovative Research Team of Animal Nutrition & Healthy Feeding, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Lu Deng
- Innovative Research Team of Animal Nutrition & Healthy Feeding, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, China.
| | - Gongshe Yang
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, China.
| | - Weijun Pang
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, China.
| |
Collapse
|
37
|
She Y, Jiang Y, Luo M, Duan X, Xie L, Yang C, Xu L, Fu Y, Lv Z, Cai R, Li Y, Qiu Y, Hu L, Shi X, Wang L, Wu S, Chen Q, Jiang M, Hu Q. Emergence of chromosomally located bla CTX-M-14b and qnrS1 in Salmonella enterica serotype Kentucky ST198 in China. Int J Antimicrob Agents 2023; 62:106896. [PMID: 37343807 DOI: 10.1016/j.ijantimicag.2023.106896] [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: 02/14/2023] [Revised: 06/06/2023] [Accepted: 06/10/2023] [Indexed: 06/23/2023]
Abstract
Highly fluoroquinolone-resistant Salmonella enterica serotype Kentucky has become widespread in recent years, largely associated with the spread of sequence type 198 (ST198), which often leads to multidrug resistance. Research on the genomic epidemiology of Salmonella Kentucky in China is currently uncommon. In this study, we analysed the genomic epidemiology and antimicrobial resistance characteristics of Salmonella Kentucky ST198 collected from foodborne disease surveillance in Shenzhen, China, during 2010-2021, using whole-genome sequencing and antibiotic susceptibility testing. In addition, 158 global Salmonella Kentucky ST198 genomes were included for comparison. Among 8559 Salmonella isolates, 43 Salmonella Kentucky ST198 isolates were detected during 2010-2021. The global Salmonella Kentucky ST198 evolutionary tree was divided into five clades, with Shenzhen isolates distributed in clades 198.1, 198.2-1 and 198.2-2, mainly clustered with Chinese strains. Strains in clade 198.2 dominated in Shenzhen and all of them showed multidrug resistance. Nine strains showed high resistance to ceftriaxone, which was associated with blaCTX-M-14b in clade 198.2-1, which was demonstrated to be located on the chromosome. Fifteen strains showed high resistance to ciprofloxacin, which was associated with carriage of qnrS1 in clade 198.2-2. qnrS1 was first located on an IncHI2 plasmid and then transferred into the chromosome. Here we report the genomic and antimicrobial resistance characterisation of Salmonella Kentucky ST198 in Shenzhen. Of particular concern, we identified for the first time a clade 198.2-1 isolate carrying blaCTX-M-14b as well as chromosomally located qnrS1 in clade 198.2-2 of Salmonella Kentucky ST198 in China, highlighting the necessity of surveillance of clade 198.2.
Collapse
Affiliation(s)
- Yiying She
- School of Public Health, Shanxi Medical University, Taiyuan, China
| | - Yixiang Jiang
- Shenzhen Center for Disease Control and Prevention, Shenzhen, China
| | - Miaomiao Luo
- School of Public Health, Shanxi Medical University, Taiyuan, China
| | - Xiangke Duan
- Shenzhen Center for Disease Control and Prevention, Shenzhen, China
| | - Li Xie
- University of South China, Hengyang, China
| | - Chao Yang
- Institute Pasteur of Shanghai Chinese Academy of Sciences, Shanghai, China
| | - Liangcai Xu
- Shenzhen Futian District Center for Disease Control and Prevention, Shenzhen, China
| | - Yulin Fu
- Shenzhen Center for Disease Control and Prevention, Shenzhen, China
| | - Ziquan Lv
- Shenzhen Center for Disease Control and Prevention, Shenzhen, China
| | - Rui Cai
- Shenzhen Center for Disease Control and Prevention, Shenzhen, China
| | - Yinghui Li
- Shenzhen Center for Disease Control and Prevention, Shenzhen, China
| | - Yaqun Qiu
- Shenzhen Center for Disease Control and Prevention, Shenzhen, China
| | - Lulu Hu
- Shenzhen Center for Disease Control and Prevention, Shenzhen, China
| | - Xiaolu Shi
- Shenzhen Center for Disease Control and Prevention, Shenzhen, China
| | - Lei Wang
- Shenzhen Center for Disease Control and Prevention, Shenzhen, China
| | - Shuang Wu
- Shenzhen Center for Disease Control and Prevention, Shenzhen, China
| | - Qiongcheng Chen
- Shenzhen Center for Disease Control and Prevention, Shenzhen, China
| | - Min Jiang
- Shenzhen Center for Disease Control and Prevention, Shenzhen, China.
| | - Qinghua Hu
- School of Public Health, Shanxi Medical University, Taiyuan, China; Shenzhen Center for Disease Control and Prevention, Shenzhen, China; Shenzhen Research Center for Communicable Disease Control and Prevention, Chinese Academy of Medical Sciences, Shenzhen, China.
| |
Collapse
|
38
|
Li W, Wu Z, Zhao J, Jiang M, Yuan L, Guo Y, Li S, Hu L, Xie X, Zhang Y, Tao G, Cai R. Fabrication of dual physically cross-linked polyvinyl alcohol/agar hydrogels with mechanical stability and antibacterial activity for wound healing. Int J Biol Macromol 2023; 247:125652. [PMID: 37399875 DOI: 10.1016/j.ijbiomac.2023.125652] [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: 05/04/2023] [Revised: 06/15/2023] [Accepted: 06/30/2023] [Indexed: 07/05/2023]
Abstract
Bacterial infection is one of the most critical obstacles in wound healing, and severe bacterial infections can lead to inflammatory conditions and delay the healing process. Herein, a novel hydrogel based on polyvinyl alcohol (PVA), agar, and silk-AgNPs was prepared using a straightforward one-pot physical cross-linking method. The in situ synthesis of AgNPs in hydrogels exploited the reducibility of tyrosine (Tyr tyrosine) in silk fibroin, which endowed the hydrogels with outstanding antibacterial qualities. In addition, the strong hydrogen bond cross-linked networks of agar and the crystallites formed by PVA as the physical cross-linked double network of the hydrogel gave it excellent mechanical stability. The PVA/agar/SF-AgNPs (PASA) hydrogels exhibited excellent water absorption, porosity, and significant antibacterial effects against Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus). Furthermore, in vivo experimental results confirmed that the PASA hydrogel significantly promoted wound repair and skin tissue reconstruction by reducing inflammation and promoting collagen deposition. Immunofluorescence staining showed that the PASA hydrogel enhanced CD31 expression to promote angiogenesis while decreasing CD68 expression to reduce inflammation. Overall, the novel PASA hydrogel showed great potential for bacterial infection wound management.
Collapse
Affiliation(s)
- Weili Li
- Oral & Maxillofacial Reconstruction and Regeneration of Luzhou Key Laboratory, The Affiliated Stomatological Hospital of Southwest Medical University, Luzhou 646000, China; School of Stomatology, Southwest Medical University, Luzhou 646000, China
| | - Zhaodan Wu
- Oral & Maxillofacial Reconstruction and Regeneration of Luzhou Key Laboratory, The Affiliated Stomatological Hospital of Southwest Medical University, Luzhou 646000, China; School of Stomatology, Southwest Medical University, Luzhou 646000, China
| | - Jiayu Zhao
- Oral & Maxillofacial Reconstruction and Regeneration of Luzhou Key Laboratory, The Affiliated Stomatological Hospital of Southwest Medical University, Luzhou 646000, China; School of Stomatology, Southwest Medical University, Luzhou 646000, China
| | - Min Jiang
- Oral & Maxillofacial Reconstruction and Regeneration of Luzhou Key Laboratory, The Affiliated Stomatological Hospital of Southwest Medical University, Luzhou 646000, China
| | - Lingling Yuan
- Oral & Maxillofacial Reconstruction and Regeneration of Luzhou Key Laboratory, The Affiliated Stomatological Hospital of Southwest Medical University, Luzhou 646000, China
| | - Ye Guo
- Oral & Maxillofacial Reconstruction and Regeneration of Luzhou Key Laboratory, The Affiliated Stomatological Hospital of Southwest Medical University, Luzhou 646000, China
| | - Silei Li
- Oral & Maxillofacial Reconstruction and Regeneration of Luzhou Key Laboratory, The Affiliated Stomatological Hospital of Southwest Medical University, Luzhou 646000, China
| | - Liyu Hu
- Oral & Maxillofacial Reconstruction and Regeneration of Luzhou Key Laboratory, The Affiliated Stomatological Hospital of Southwest Medical University, Luzhou 646000, China; Institute of Stomatology, Southwest Medical University, Luzhou 646000, China
| | - Xinyu Xie
- Oral & Maxillofacial Reconstruction and Regeneration of Luzhou Key Laboratory, The Affiliated Stomatological Hospital of Southwest Medical University, Luzhou 646000, China; School of Stomatology, Southwest Medical University, Luzhou 646000, China
| | - Yi Zhang
- Oral & Maxillofacial Reconstruction and Regeneration of Luzhou Key Laboratory, The Affiliated Stomatological Hospital of Southwest Medical University, Luzhou 646000, China; School of Stomatology, Southwest Medical University, Luzhou 646000, China
| | - Gang Tao
- Oral & Maxillofacial Reconstruction and Regeneration of Luzhou Key Laboratory, The Affiliated Stomatological Hospital of Southwest Medical University, Luzhou 646000, China; Institute of Stomatology, Southwest Medical University, Luzhou 646000, China; School of Stomatology, Southwest Medical University, Luzhou 646000, China.
| | - Rui Cai
- Oral & Maxillofacial Reconstruction and Regeneration of Luzhou Key Laboratory, The Affiliated Stomatological Hospital of Southwest Medical University, Luzhou 646000, China; Institute of Stomatology, Southwest Medical University, Luzhou 646000, China; School of Stomatology, Southwest Medical University, Luzhou 646000, China.
| |
Collapse
|
39
|
Cai R, Zuo S, Cao X, Jiang X, Xu C. Effects of turning frequency on fermentation efficiency and microbial community metabolic function of sheep manure composting on the Qinghai-Tibet Plateau. BIORESOUR BIOPROCESS 2023; 10:53. [PMID: 38647985 PMCID: PMC10992442 DOI: 10.1186/s40643-023-00675-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [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: 04/20/2023] [Accepted: 08/06/2023] [Indexed: 04/25/2024] Open
Abstract
This study explored the effects of turning frequency on fermentation efficiency and microbial metabolic function of sheep manure composting on the Qinghai-Tibet Plateau (QTP). Five treatments with different turning frequencies were set up in this study: turning every 1 day (T1), 2 days (T2), 4 days (T3), 6 days (T4), and 8 days (T5). Results showed that the high temperature period for T1 and T5 lasted only 4 days, while that for T2-T4 lasted more than 8 days. The germination index of T1 and T5 was lower than 80%, while that of T2-T4 was 100.6%, 97.8%, and 88.6%, respectively. This study further predicted the microbial metabolic function of T2-T4 using the bioinformatics tool PICRUSt2 (Phylogenetic Investigation of Communities by Reconstruction of Unobserved States) and determining the activities of various functional enzymes. The results showed that carbohydrate metabolism, protein metabolism, and nucleotide metabolism were the main metabolic pathways of microorganisms, and that T2 increased the abundance of functional genes of these metabolic pathways. The activities of protease, cellulase, and peroxidase in T2 and T3 were higher than those in T4, and the effect of T2 was more significant. In conclusion, turning once every 2 days can improve the quality of sheep manure compost on the QTP.
Collapse
Affiliation(s)
- Rui Cai
- College of Engineering, China Agricultural University, No. 17 Qinghua Donglu, Haidian District, Beijing, 100083, China
| | - Sasa Zuo
- College of Engineering, China Agricultural University, No. 17 Qinghua Donglu, Haidian District, Beijing, 100083, China
| | - Xiaohui Cao
- College of Engineering, China Agricultural University, No. 17 Qinghua Donglu, Haidian District, Beijing, 100083, China
| | - Xin Jiang
- College of Engineering, China Agricultural University, No. 17 Qinghua Donglu, Haidian District, Beijing, 100083, China
| | - Chuncheng Xu
- College of Engineering, China Agricultural University, No. 17 Qinghua Donglu, Haidian District, Beijing, 100083, China.
| |
Collapse
|
40
|
Guo Y, Xie B, Jiang M, Yuan L, Jiang X, Li S, Cai R, Chen J, Jiang X, He Y, Tao G. Facile and eco-friendly fabrication of biocompatible hydrogel containing CuS@Ser NPs with mechanical flexibility and photothermal antibacterial activity to promote infected wound healing. J Nanobiotechnology 2023; 21:266. [PMID: 37563585 PMCID: PMC10416498 DOI: 10.1186/s12951-023-02035-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [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: 03/17/2023] [Accepted: 07/31/2023] [Indexed: 08/12/2023] Open
Abstract
Bacterial infections can significantly impede wound healing and pose a serious threat to the patient's life. The excessive use of antibiotics to combat bacterial infections has led to the emergence of multi-drug-resistant bacteria. Therefore, there is a pressing need for alternative approaches, such as photothermal therapy (PTT), to address this issue. In this study, for the first time, CuS NPs with photothermal properties were synthesized using sericin as a biological template, named CuS@Ser NPs. This method is simple, green, and does not produce toxic and harmful by-products. These nanoparticles were incorporated into a mixture (XK) of xanthan gum and konjac glucomannan (KGM) to obtain XK/CuS NPs composite hydrogel, which could overcome the limitations of current wound dressings. The composite hydrogel exhibited excellent mechanical flexibility, photothermal response, and biocompatibility. It also demonstrated potent antibacterial properties against both Gram-positive and negative bacteria via antibacterial experiments and accelerated wound healing in animal models. Additionally, it is proved that the hydrogel promoted tissue regeneration by stimulating collagen deposition, angiogenesis, and reducing inflammation. In summary, the XK/CuS NPs composite hydrogel presents a promising alternative for the clinical management of infected wounds, offering a new approach to promote infected wound healing.
Collapse
Affiliation(s)
- Ye Guo
- Oral and Maxillofacial Reconstruction and Regeneration of Luzhou Key Laboratory, The Affiliated Stomatological Hospital of Southwest Medical University, Luzhou, 646000, China
| | - Bingqing Xie
- Oral and Maxillofacial Reconstruction and Regeneration of Luzhou Key Laboratory, The Affiliated Stomatological Hospital of Southwest Medical University, Luzhou, 646000, China
| | - Min Jiang
- Oral and Maxillofacial Reconstruction and Regeneration of Luzhou Key Laboratory, The Affiliated Stomatological Hospital of Southwest Medical University, Luzhou, 646000, China
| | - Lingling Yuan
- Oral and Maxillofacial Reconstruction and Regeneration of Luzhou Key Laboratory, The Affiliated Stomatological Hospital of Southwest Medical University, Luzhou, 646000, China
| | - Xueyu Jiang
- Oral and Maxillofacial Reconstruction and Regeneration of Luzhou Key Laboratory, The Affiliated Stomatological Hospital of Southwest Medical University, Luzhou, 646000, China
| | - Silei Li
- Oral and Maxillofacial Reconstruction and Regeneration of Luzhou Key Laboratory, The Affiliated Stomatological Hospital of Southwest Medical University, Luzhou, 646000, China
| | - Rui Cai
- Oral and Maxillofacial Reconstruction and Regeneration of Luzhou Key Laboratory, The Affiliated Stomatological Hospital of Southwest Medical University, Luzhou, 646000, China
- Institute of Stomatology, Southwest Medical University, Luzhou, 646000, China
| | - Junliang Chen
- Oral and Maxillofacial Reconstruction and Regeneration of Luzhou Key Laboratory, The Affiliated Stomatological Hospital of Southwest Medical University, Luzhou, 646000, China
- Institute of Stomatology, Southwest Medical University, Luzhou, 646000, China
- Department of Oral and Maxillofacial Surgery, The Affiliated Stomatological Hospital of Southwest Medical University, Luzhou, 646000, China
- Department of Oral and Maxillofacial Surgery, The Affiliated Hospital of Southwest Medical University, Luzhou, 646000, China
| | - Xia Jiang
- Department of Oral and Maxillofacial Surgery, The Affiliated Stomatological Hospital of Southwest Medical University, Luzhou, 646000, China
| | - Yun He
- Oral and Maxillofacial Reconstruction and Regeneration of Luzhou Key Laboratory, The Affiliated Stomatological Hospital of Southwest Medical University, Luzhou, 646000, China.
- Institute of Stomatology, Southwest Medical University, Luzhou, 646000, China.
- Department of Oral and Maxillofacial Surgery, The Affiliated Stomatological Hospital of Southwest Medical University, Luzhou, 646000, China.
- Department of Oral and Maxillofacial Surgery, The Affiliated Hospital of Southwest Medical University, Luzhou, 646000, China.
| | - Gang Tao
- Oral and Maxillofacial Reconstruction and Regeneration of Luzhou Key Laboratory, The Affiliated Stomatological Hospital of Southwest Medical University, Luzhou, 646000, China.
- Institute of Stomatology, Southwest Medical University, Luzhou, 646000, China.
| |
Collapse
|
41
|
Wang Q, Zhou FP, Tao DD, Wei JH, Cai R, Jiang YB. Amyloid peptide hydrogels via formation of coordination polymers with Ag + by its core peptide equipped with a C-cysteine. Chem Commun (Camb) 2023; 59:9599-9602. [PMID: 37461336 DOI: 10.1039/d3cc02076b] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/04/2023]
Abstract
We report that the core sequence of amyloid β (Aβ) peptide, KLVFF, when equipped with a C-terminal cysteine residue, exhibited an extremely low minimum hydrogelation concentration of 0.05 wt% in the presence of Ag+ in pH 5 buffer, with this concentration 2 orders of magnitude lower than that of the pentapeptide itself. The CD signal of the Ag+-L-KLVFFC hydrogel was observed to be sensitive to the early-stage aggregation of amyloid β peptide.
Collapse
Affiliation(s)
- Qian Wang
- Department of Chemistry, College of Chemistry and Chemical Engineering, The MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, and iChEM, Xiamen University, Xiamen 361005, China.
| | - Fu-Peng Zhou
- Department of Chemistry, College of Chemistry and Chemical Engineering, The MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, and iChEM, Xiamen University, Xiamen 361005, China.
| | - Dan-Dan Tao
- Department of Chemistry, College of Chemistry and Chemical Engineering, The MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, and iChEM, Xiamen University, Xiamen 361005, China.
| | - Jin-Hong Wei
- Department of Chemistry, College of Chemistry and Chemical Engineering, The MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, and iChEM, Xiamen University, Xiamen 361005, China.
| | - Rui Cai
- Department of Chemistry, College of Chemistry and Chemical Engineering, The MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, and iChEM, Xiamen University, Xiamen 361005, China.
| | - Yun-Bao Jiang
- Department of Chemistry, College of Chemistry and Chemical Engineering, The MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, and iChEM, Xiamen University, Xiamen 361005, China.
| |
Collapse
|
42
|
Cai R, Xiao Y, Sui X, Li Y, Wu Z, Wu J, Deng G, Zhou H, Zhou S. Compact wavemeter incorporating femtosecond laser-induced surface nanostructures enabled by deep learning. Opt Lett 2023; 48:3961-3964. [PMID: 37527093 DOI: 10.1364/ol.492737] [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: 04/11/2023] [Accepted: 06/13/2023] [Indexed: 08/03/2023]
Abstract
Miniature spectrometers have the advantage of high portability and integration, making them quick and easy to use in various working environments. The speckle patterns produced by light scattering through a disordered medium are highly sensitive to wavelength changes and can be used to design high-precision wavemeters and spectrometers. In this study, we used a self-organized, femtosecond laser-prepared nanostructure with a characteristic size of approximately 30-50 nm on a sapphire surface as a scattering medium to effectively induce spectral dispersion. By leveraging this random scattering structure, we successfully designed a compact scattering wavelength meter with efficient scattering properties. The collected speckle patterns were identified and classified using a neural network, and the variation of speckle patterns with wavelength was accurately extracted, achieving a measurement accuracy of 10 pm in multiple wavelength ranges. The system can effectively suppress instrument and environmental noise with high robustness. This work paves the way for the development of compact high-precision wavemeters.
Collapse
|
43
|
Cai R, Wang M, Liu M, Zhu X, Feng L, Yu Z, Yang X, Zhang Z, Guo H, Guo R, Zheng Y. An iRGD-conjugated photothermal therapy-responsive gold nanoparticle system carrying siCDK7 induces necroptosis and immunotherapeutic responses in lung adenocarcinoma. Bioeng Transl Med 2023; 8:e10430. [PMID: 37476070 PMCID: PMC10354770 DOI: 10.1002/btm2.10430] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Revised: 10/07/2022] [Accepted: 10/10/2022] [Indexed: 07/22/2023] Open
Abstract
Although immunotherapy has improved the clinical treatment of lung adenocarcinoma (LUAD), many tumors have poor responses to immunotherapy. In this study, we confirmed that high expression of Cyclin-Dependent Kinase 7 (CDK7) promoted an immunosuppressive macrophage phenotype and macrophage infiltration in LUAD. Thus, we have developed an internalizing-RGD (iRGD)-conjugated gold nanoparticle (AuNP) system which carries siCDK7 to activate the antitumor immune response. The iRGD-conjugated AuNP/siCDK7 system exhibited good tumor targeting performance and photothermal effects. The AuNP/siCDK7 system with excellent biosafety exerted a significant photothermal antitumor effect by inducing tumor cell necroptosis. Furthermore, the AuNP/siCDK7 system ameliorated the immunosuppressive microenvironment and enhanced the efficacy of anti-PD-1 treatment by increasing CD8+ T cell infiltration and decreasing M2 macrophage infiltration. Hence, this iRGD-conjugated AuNP/siCDK7 system is a potential treatment strategy for lung adenocarcinoma, which exerts its effects by triggering tumor cell necroptosis and immunotherapeutic responses.
Collapse
Affiliation(s)
- Rui Cai
- Department of Medical OncologyAffiliated Cancer Hospital and Institute of Guangzhou Medical UniversityGuangzhouChina
- State Key Laboratory of Respiratory DiseaseGuangzhouChina
| | - Meng Wang
- Department of Medical OncologyAffiliated Cancer Hospital and Institute of Guangzhou Medical UniversityGuangzhouChina
- State Key Laboratory of Respiratory DiseaseGuangzhouChina
| | - Meiyuan Liu
- Department of Medical OncologyAffiliated Cancer Hospital and Institute of Guangzhou Medical UniversityGuangzhouChina
- State Key Laboratory of Respiratory DiseaseGuangzhouChina
| | - Xiongjie Zhu
- Department of Medical OncologyAffiliated Cancer Hospital and Institute of Guangzhou Medical UniversityGuangzhouChina
- State Key Laboratory of Respiratory DiseaseGuangzhouChina
| | - Longbao Feng
- Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, Guangdong Provincial Engineering and Technological Research Center for Drug Carrier Development, Department of Biomedical EngineeringJinan UniversityGuangzhouChina
| | - Zhongjian Yu
- Department of Medical OncologyAffiliated Cancer Hospital and Institute of Guangzhou Medical UniversityGuangzhouChina
- State Key Laboratory of Respiratory DiseaseGuangzhouChina
| | - Xia Yang
- Department of Medical OncologyAffiliated Cancer Hospital and Institute of Guangzhou Medical UniversityGuangzhouChina
- State Key Laboratory of Respiratory DiseaseGuangzhouChina
| | - Zhiwu Zhang
- Department of Medical OncologyAffiliated Cancer Hospital and Institute of Guangzhou Medical UniversityGuangzhouChina
- State Key Laboratory of Respiratory DiseaseGuangzhouChina
| | - Huili Guo
- Department of Medical OncologyAffiliated Cancer Hospital and Institute of Guangzhou Medical UniversityGuangzhouChina
- State Key Laboratory of Respiratory DiseaseGuangzhouChina
| | - Rui Guo
- Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, Guangdong Provincial Engineering and Technological Research Center for Drug Carrier Development, Department of Biomedical EngineeringJinan UniversityGuangzhouChina
| | - Yanfang Zheng
- Department of Medical OncologyAffiliated Cancer Hospital and Institute of Guangzhou Medical UniversityGuangzhouChina
- State Key Laboratory of Respiratory DiseaseGuangzhouChina
| |
Collapse
|
44
|
Li X, Wang Z, Hao X, Zhang J, Zhao X, Yao Y, Wei W, Cai R, He C, Duan C, Guo Z, Zhao J, Wang X. Optically Pure Double-Stranded Dinuclear Ir(III) Metallohelices Enabled Chirality-Induced Photodynamic Responses. J Am Chem Soc 2023. [PMID: 37366343 DOI: 10.1021/jacs.3c03310] [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: 06/28/2023]
Abstract
Investigation on the interactions between enantiomers of chiral drugs and biomolecules can help precisely understand their biological behaviors in vivo and provide insights into the design of new drugs. Herein, we designed and synthesized a pair of optically pure, cationic, double-stranded dinuclear Ir(III)-metallohelices (Λ2R4-H and Δ2S4-H), and their dramatic enantiomer-dependent photodynamic therapy (PDT) responses were thoroughly studied in vitro and in vivo. Compared to the mononuclear enantiomeric or racemic [Ir(ppy)2(dppz)][PF6] (Λ-/Δ-Ir, rac-Ir) that with high dark toxicity and low photocytotoxicity index (PI) values, both of the optically pure metallohelices displayed negligible toxicity in the dark while exhibiting very distinctive light toxicity upon light irradiation. The PI value of Λ2R4-H was approximately 428, however, Δ2S4-H significantly reached 63,966. Interestingly, only Δ2S4-H was found to migrate from mitochondria to nucleus after light irradiation. Further proteomic analysis verified that Δ2S4-H activated the ATP-dependent migration process after light irradiation, and subsequently inhibited the activities of the nuclear proteins such as superoxide dismutase 1 (SOD1) and eukaryotic translation initiation factor 5A (EIF5A) to trigger the accumulation of superoxide anions and downregulate mRNA splicing processes. Molecular docking simulations suggested that the interactions between metallohelices and nuclear pore complex NDC1 dominated the migration process. This work presents a new kind of Ir(III) metallohelices-based agent with the highest PDT efficacy, highlights the importance of metallohelices' chirality, and provides inspirations for the future design of chiral helical metallodrugs.
Collapse
Affiliation(s)
- Xuezhao Li
- School of Chemistry, State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, China
| | - Zhicheng Wang
- School of Life Sciences, Nanjing University, Nanjing 210023, China
| | - Xiaorou Hao
- School of Chemistry, State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, China
| | - Jingyi Zhang
- Chemistry and Biomedicine Innovation Center (ChemBIC), State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Xing Zhao
- School of Chemistry, State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, China
| | - Yougang Yao
- School of Chemistry, State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, China
| | - Wei Wei
- School of Life Sciences, Nanjing University, Nanjing 210023, China
| | - Rui Cai
- Instrumental Analysis Center of Dalian University of Technology, Dalian University of Technology, Dalian 116024, China
| | - Cheng He
- School of Chemistry, State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, China
| | - Chunying Duan
- School of Chemistry, State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, China
| | - Zijian Guo
- School of Life Sciences, Nanjing University, Nanjing 210023, China
| | - Jing Zhao
- Chemistry and Biomedicine Innovation Center (ChemBIC), State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Xiuxiu Wang
- Chemistry and Biomedicine Innovation Center (ChemBIC), State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| |
Collapse
|
45
|
Li S, Liu X, Wang L, Wang K, Li M, Wang X, Yuan Y, Yue T, Cai R, Wang Z. Innovative beverage creation through symbiotic microbial communities inspired by traditional fermented beverages: current status, challenges and future directions. Crit Rev Food Sci Nutr 2023:1-28. [PMID: 37357963 DOI: 10.1080/10408398.2023.2225191] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/27/2023]
Abstract
Fermented beverages (FBs) are facing challenges in functional performance and flavor complexity, necessitating the development of new multi-functional options. Traditional fermented beverages (TFBs), both alcoholic and nonalcoholic, have gained increased attention for their health-promoting effects during the COVID-19 pandemic. This review summarized the primary commercially available probiotics of FBs, along with the limitations of single and mixed probiotic FBs. It also examined the recent research progress on TFBs, emphasizing the typical microbial communities (MC) of TFBs, and TFBs made from crops (grains, vegetables, fruits, etc.) worldwide and their associated functions and health benefits. Furthermore, the construction, technical bottlenecks of the synthetic MC involved in developing innovative FBs were presented, and the promising perspective of FBs was described. Drawing inspiration from the MC of TFBs, developing of stable and multifunctional FBs using synthetic MC holds great promise for beverage industry. However, synthetic MC suffers from structural instability and poorly acknowledged interaction mechanisms, resulting in disappointing results in FBs. Future researches should prioritize creating synthetic MC fermentation that closely resemble natural fermentation, tailored to meet the needs of different consumers. Creating personalized FBs with high-tech intelligence is vital in attracting potential consumers and developing novel beverages for the future.
Collapse
Affiliation(s)
- Shiqi Li
- College of Food Science and Engineering, Northwest A&F University, YangLing, Shaanxi, China
- Laboratory of Quality & Safety Risk Assessment for Agro-products (YangLing), Ministry of Agriculture, Yangling, Shaanxi, China
| | - Xiaoshuang Liu
- College of Food Science and Engineering, Northwest A&F University, YangLing, Shaanxi, China
- Laboratory of Quality & Safety Risk Assessment for Agro-products (YangLing), Ministry of Agriculture, Yangling, Shaanxi, China
| | - Leran Wang
- College of Food Science and Engineering, Northwest A&F University, YangLing, Shaanxi, China
- Laboratory of Quality & Safety Risk Assessment for Agro-products (YangLing), Ministry of Agriculture, Yangling, Shaanxi, China
| | - Kai Wang
- College of Food Science and Engineering, Northwest A&F University, YangLing, Shaanxi, China
- Laboratory of Quality & Safety Risk Assessment for Agro-products (YangLing), Ministry of Agriculture, Yangling, Shaanxi, China
| | - Menghui Li
- College of Food Science and Engineering, Northwest A&F University, YangLing, Shaanxi, China
- Laboratory of Quality & Safety Risk Assessment for Agro-products (YangLing), Ministry of Agriculture, Yangling, Shaanxi, China
| | - Xingnan Wang
- College of Food Science and Engineering, Northwest A&F University, YangLing, Shaanxi, China
- Laboratory of Quality & Safety Risk Assessment for Agro-products (YangLing), Ministry of Agriculture, Yangling, Shaanxi, China
| | - Yahong Yuan
- College of Food Science and Engineering, Northwest University, Xi'an, Shaanxi, China
| | - Tianli Yue
- College of Food Science and Engineering, Northwest University, Xi'an, Shaanxi, China
| | - Rui Cai
- College of Food Science and Engineering, Northwest University, Xi'an, Shaanxi, China
| | - Zhouli Wang
- College of Food Science and Engineering, Northwest A&F University, YangLing, Shaanxi, China
- Laboratory of Quality & Safety Risk Assessment for Agro-products (YangLing), Ministry of Agriculture, Yangling, Shaanxi, China
| |
Collapse
|
46
|
Lu H, Yuan J, Wu Z, Wang L, Wu S, Chen Q, Zhang Z, Chen Z, Zou X, Hu Q, Feng T, Lu J, Ji L, Qiu S, Xu S, Jiang M, Li Y, Peng B, Bai Q, Cai R, Geng Y, Shi X. Distribution of drug-resistant genes in alveolar lavage fluid from patients with psittacosis and traceability analysis of causative organisms. Front Microbiol 2023; 14:1182604. [PMID: 37425996 PMCID: PMC10327639 DOI: 10.3389/fmicb.2023.1182604] [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: 03/09/2023] [Accepted: 06/01/2023] [Indexed: 07/11/2023] Open
Abstract
Background Chlamydia psittaci is a small bacterium often found in birds, including poultry, and domesticated mammals, which causes psittacosis (or parrot fever) in humans. Different strains of C. psittaci respond variably to antibiotics, suggesting a possible risk of antibiotic resistance. In general, different genotypes of C. psittaci have relatively stable hosts and different pathogenicity. Methods Macrogenomic sequencing was performed using nucleic acids extracted from psittacosis patients' alveolar lavage fluid samples and analyzed for genetic variability and antibiotic resistance genes. Nucleic acid amplification sequences specific to the core coding region of the C. psittaci ompA gene were used, and a phylogenetic tree was constructed with C. psittaci genotypic sequences from other sources, including Chinese published sources. The C. psittaci found in each patient were genotyped by comparing ompA gene sequences. In addition, to better illustrate the relationship between genotype and host of C. psittaci, 60 bird fecal samples were collected from bird-selling stores for screening and C. psittaci typing. Results Macrogenomic sequence alignment revealed the presence of resistance genes in varying abundance in samples from all three patients, including C. psittaci resistance gene sequences from two patients that matched those previously published on NCBI. Based on ompA genotyping, two patients were infected with C. psittaci genotype A and one patient was infected with genotype B. All five C. psittaci-positive samples obtained from bird-selling stores were genotype A. Both genotypes are reported to be infectious to humans. The host origin of the samples and the previously reported main sources of each genotype suggested that all but one of the C. psittaci genotype A in this study were derived from parrots, while genotype B was probably derived from chickens. Conclusion The presence of bacterial resistance genes in psittacosis patients may affect the efficacy of clinical antibiotic therapy. Focusing on the developmental progression of bacterial resistance genes and differences in the therapeutic efficacy may facilitate effective treatment of clinical bacterial infections. Pathogenicity genotypes (e.g., genotype A and genotype B) are not limited to one animal host, suggesting that monitoring the development and changes of C. psittaci may help prevent transmission to humans.
Collapse
Affiliation(s)
- Huiqun Lu
- Department of Public Health Laboratory Sciences, School of Public Health, University of South China, Hengyang, China
| | - Jing Yuan
- Shenzhen Third People’s Hospital, Second Affiliated Hospital of Southern University of Science and Technology, Shenzhen, China
| | - Zeming Wu
- Shenzhen Hospital of Guangzhou University of Chinese Medicine (Futian), Shenzhen, China
| | | | - Shuang Wu
- Shenzhen Center for Disease Control and Prevention, Shenzhen, China
| | - Qiongcheng Chen
- Shenzhen Center for Disease Control and Prevention, Shenzhen, China
| | - Zhen Zhang
- Shenzhen Center for Disease Control and Prevention, Shenzhen, China
| | - Zhigao Chen
- Shenzhen Center for Disease Control and Prevention, Shenzhen, China
| | - Xuan Zou
- Shenzhen Center for Disease Control and Prevention, Shenzhen, China
| | - Qinghua Hu
- Shenzhen Center for Disease Control and Prevention, Shenzhen, China
| | - Tiejian Feng
- Shenzhen Center for Disease Control and Prevention, Shenzhen, China
| | - Jianhua Lu
- Shenzhen Center for Disease Control and Prevention, Shenzhen, China
| | - Liyin Ji
- Shenzhen Center for Disease Control and Prevention, Shenzhen, China
| | - Shuxiang Qiu
- Department of Public Health Laboratory Sciences, School of Public Health, University of South China, Hengyang, China
| | - Shiqin Xu
- Shenzhen Center for Disease Control and Prevention, Shenzhen, China
| | - Min Jiang
- Shenzhen Center for Disease Control and Prevention, Shenzhen, China
| | - Yinghui Li
- Shenzhen Center for Disease Control and Prevention, Shenzhen, China
| | - Bo Peng
- Shenzhen Center for Disease Control and Prevention, Shenzhen, China
| | - Qinqin Bai
- Department of Public Health Laboratory Sciences, School of Public Health, University of South China, Hengyang, China
| | - Rui Cai
- Shenzhen Center for Disease Control and Prevention, Shenzhen, China
| | - Yijie Geng
- Shenzhen Center for Disease Control and Prevention, Shenzhen, China
| | - Xiaolu Shi
- Department of Public Health Laboratory Sciences, School of Public Health, University of South China, Hengyang, China
- Shenzhen Center for Disease Control and Prevention, Shenzhen, China
| |
Collapse
|
47
|
Cai R, Shoukat CA, Zhang C, Gao X, Li H, Chen J, Ji Y, Wu X. A colorimetric chemosensor for sensitive and selective detection of copper(II) ions based on catalytic oxidation of 1-naphthylamine. Analyst 2023. [PMID: 37334554 DOI: 10.1039/d3an00536d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/20/2023]
Abstract
Rapid on-site detection of copper(II) ions (Cu2+) with high sensitivity and selectivity is of great significance in the safety monitoring of drinking water and food. Colorimetric detection is a robust fast determination method with the main drawback of low sensitivity. Herein, we developed a colorimetric chemosensor based on a colored polymer product. Via a Cu-Fenton mechanism, 1-naphthylamine (α-NA) was oxidized by H2O2 and brownish-red poly(1-naphthylamine) (PNA) was produced. The obtained Cu2+ sensor showed a linear response from 0.05 μM to 7 μM, with a detection limit of 62 nM. Our findings expanded chromogenic reaction types for colorimetric detection.
Collapse
Affiliation(s)
- Rui Cai
- CAS Key Laboratory of Standardization and Measurement for Nanotechnology, National Center for Nanoscience and Technology, Beijing 100190, China.
- University of the Chinese Academy of Sciences, Beijing 100049, China
| | - Chaudhary Ammar Shoukat
- CAS Key Laboratory of Standardization and Measurement for Nanotechnology, National Center for Nanoscience and Technology, Beijing 100190, China.
- University of the Chinese Academy of Sciences, Beijing 100049, China
| | - Chenqi Zhang
- CAS Key Laboratory of Standardization and Measurement for Nanotechnology, National Center for Nanoscience and Technology, Beijing 100190, China.
- University of the Chinese Academy of Sciences, Beijing 100049, China
| | - Xinshuang Gao
- CAS Key Laboratory of Standardization and Measurement for Nanotechnology, National Center for Nanoscience and Technology, Beijing 100190, China.
- University of the Chinese Academy of Sciences, Beijing 100049, China
| | - Hanbo Li
- CAS Key Laboratory of Standardization and Measurement for Nanotechnology, National Center for Nanoscience and Technology, Beijing 100190, China.
- University of the Chinese Academy of Sciences, Beijing 100049, China
| | - Jiaqi Chen
- School of Mechanical Engineering, Chengdu University, Chengdu 610000, China.
| | - Yinglu Ji
- CAS Key Laboratory of Standardization and Measurement for Nanotechnology, National Center for Nanoscience and Technology, Beijing 100190, China.
| | - Xiaochun Wu
- CAS Key Laboratory of Standardization and Measurement for Nanotechnology, National Center for Nanoscience and Technology, Beijing 100190, China.
- University of the Chinese Academy of Sciences, Beijing 100049, China
| |
Collapse
|
48
|
Gao X, Zheng Q, Li H, Zhang C, Cai R, Ji Y, Hu Z, Wu X. Modulation of plasmonic chiral shell growth on gold nanorods via nonchiral surfactants. Nanoscale 2023. [PMID: 37313605 DOI: 10.1039/d3nr01371e] [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] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Recently, in combination with seed-mediated growth, thiolated chiral molecule-guided growth has shown great promise in obtaining chiral plasmonic nanostructures. Previously, with the assistance of chiral cysteines (Cys), we realized helical growth of plasmonic shells on gold nanorod (AuNR) seeds dispersed in cetyltrimethylammonium bromide (CTAB) solution. Herein, we further studied the roles of non-chiral cationic surfactants in tuning the helical growth. Both the counter anion and the hydrocarbon chain length of the surfactants were found to affect the formation of helical shells greatly. In particular, we exhibited surfactant-modulated conversion of the chiral shell deposition mode between layer growth and island growth. By optimizing growth conditions, an obvious plasmonic circular dichroism (PCD) response could be achieved for the island helical shell. Our findings demonstrated promising potential of nanochemical synthesis in fabricating chiral plasmonic nanostructures with small structural sizes.
Collapse
Affiliation(s)
- Xinshuang Gao
- CAS Key Laboratory of Standardization and Measurement for Nanotechnology, National Center for Nanoscience and Technology (NCNST), Beijing 100190, P. R. China.
- University of Chinese Academy of Science, Beijing 100049, P. R. China
| | - Qiang Zheng
- CAS Key Laboratory of Standardization and Measurement for Nanotechnology, National Center for Nanoscience and Technology (NCNST), Beijing 100190, P. R. China.
- University of Chinese Academy of Science, Beijing 100049, P. R. China
| | - Hanbo Li
- CAS Key Laboratory of Standardization and Measurement for Nanotechnology, National Center for Nanoscience and Technology (NCNST), Beijing 100190, P. R. China.
- University of Chinese Academy of Science, Beijing 100049, P. R. China
| | - Chenqi Zhang
- CAS Key Laboratory of Standardization and Measurement for Nanotechnology, National Center for Nanoscience and Technology (NCNST), Beijing 100190, P. R. China.
- University of Chinese Academy of Science, Beijing 100049, P. R. China
| | - Rui Cai
- CAS Key Laboratory of Standardization and Measurement for Nanotechnology, National Center for Nanoscience and Technology (NCNST), Beijing 100190, P. R. China.
- University of Chinese Academy of Science, Beijing 100049, P. R. China
| | - Yinglu Ji
- CAS Key Laboratory of Standardization and Measurement for Nanotechnology, National Center for Nanoscience and Technology (NCNST), Beijing 100190, P. R. China.
| | - Zhijian Hu
- CAS Key Laboratory of Standardization and Measurement for Nanotechnology, National Center for Nanoscience and Technology (NCNST), Beijing 100190, P. R. China.
| | - Xiaochun Wu
- CAS Key Laboratory of Standardization and Measurement for Nanotechnology, National Center for Nanoscience and Technology (NCNST), Beijing 100190, P. R. China.
- University of Chinese Academy of Science, Beijing 100049, P. R. China
| |
Collapse
|
49
|
Ghimire M, Cai R, Ling L, Brownell KA, Hackett TA, Llano DA, Caspary DM. Increased pyramidal and VIP neuronal excitability in rat primary auditory cortex directly correlates with tinnitus behaviour. J Physiol 2023; 601:2493-2511. [PMID: 37119035 PMCID: PMC10330441 DOI: 10.1113/jp284675] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [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: 03/17/2023] [Accepted: 04/25/2023] [Indexed: 04/30/2023] Open
Abstract
Tinnitus affects roughly 15%-20% of the population while severely impacting 10% of those afflicted. Tinnitus pathology is multifactorial, generally initiated by damage to the auditory periphery, resulting in a cascade of maladaptive plastic changes at multiple levels of the central auditory neuraxis as well as limbic and non-auditory cortical centres. Using a well-established condition-suppression model of tinnitus, we measured tinnitus-related changes in the microcircuits of excitatory/inhibitory neurons onto layer 5 pyramidal neurons (PNs), as well as changes in the excitability of vasoactive intestinal peptide (VIP) neurons in primary auditory cortex (A1). Patch-clamp recordings from PNs in A1 slices showed tinnitus-related increases in spontaneous excitatory postsynaptic currents (sEPSCs) and decreases in spontaneous inhibitory postsynaptic currents (sIPSCs). Both measures could be correlated to the rat's behavioural evidence of tinnitus. Tinnitus-related changes in PN excitability were independent of changes in A1 excitatory or inhibitory cell numbers. VIP neurons, part of an A1 local circuit that can control the excitation of layer 5 PNs via disinhibitory mechanisms, showed significant tinnitus-related increases in excitability that directly correlated with the rat's behavioural tinnitus score. That PN and VIP changes directly correlated to tinnitus behaviour suggests an important role in A1 tinnitus pathology. Tinnitus-related A1 changes were similar to findings in studies of neuropathic pain in somatosensory cortex suggesting a common pathology of these troublesome perceptual impairments. Improved understanding between excitatory, inhibitory and disinhibitory sensory cortical circuits can serve as a model for testing therapeutic approaches to the treatment of tinnitus and chronic pain. KEY POINTS: We identified tinnitus-related changes in synaptic function of specific neuronal subtypes in a reliable animal model of tinnitus. The findings show direct and indirect tinnitus-related losses of normal inhibitory function at A1 layer 5 pyramidal cells, and increased VIP excitability. The findings are similar to what has been shown for neuropathic pain suggesting that restoring normal inhibitory function at synaptic inputs onto A1 pyramidal neurons (PNs) could conceptually reduce tinnitus discomfort.
Collapse
Affiliation(s)
- Madan Ghimire
- Department of Pharmacology, Southern Illinois University School of Medicine, Springfield, Illinois 62702
| | - Rui Cai
- Department of Pharmacology, Southern Illinois University School of Medicine, Springfield, Illinois 62702
| | - Lynne Ling
- Department of Pharmacology, Southern Illinois University School of Medicine, Springfield, Illinois 62702
| | - Kevin A. Brownell
- Department of Pharmacology, Southern Illinois University School of Medicine, Springfield, Illinois 62702
| | - Troy A. Hackett
- Department of Hearing and Speech Sciences, Vanderbilt University Medical Center, Nashville, Tennessee 37232
| | - Daniel A. Llano
- Neuroscience Program, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
- Department of Molecular and Integrative Physiology, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
- Beckman Institute, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
| | - Donald M. Caspary
- Department of Pharmacology, Southern Illinois University School of Medicine, Springfield, Illinois 62702
| |
Collapse
|
50
|
Ghimire M, Cai R, Ling L, Brownell KA, Wisner KW, Cox BC, Hackett TA, Brozoski TJ, Caspary DM. Desensitizing nicotinic agents normalize tinnitus-related inhibitory dysfunction in the auditory cortex and ameliorate behavioral evidence of tinnitus. Front Neurosci 2023; 17:1197909. [PMID: 37304018 PMCID: PMC10248052 DOI: 10.3389/fnins.2023.1197909] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Accepted: 04/25/2023] [Indexed: 06/13/2023] Open
Abstract
Tinnitus impacts between 10-20% of the population. Individuals most troubled by their tinnitus have their attention bound to and are distracted by, their tinnitus percept. While numerous treatments to ameliorate tinnitus have been tried, no therapeutic approach has been clinically accepted. The present study used an established condition-suppression noise-exposure rat model of tinnitus to: (1) examine tinnitus-related changes in nAChR function of layer 5 pyramidal (PNs) and of vasoactive intestinal peptide (VIP) neurons in primary auditory cortex (A1) and (2) examine how the partial desensitizing nAChR agonists, sazetidine-A and varenicline, can act as potential therapeutic agents in the treatment of tinnitus. We posited that tinnitus-related changes in layer 5 nAChR responses may underpin the decline in attentional resources previously observed in this animal model (Brozoski et al., 2019). In vitro whole-cell patch-clamp studies previously revealed a significant tinnitus-related loss in nAChR-evoked excitatory postsynaptic currents from A1 layer 5 PNs. In contrast, VIP neurons from animals with behavioral evidence of tinnitus showed significantly increased nAChR-evoked excitability. Here we hypothesize that sazetidine-A and varenicline have therapeutic benefits for subjects who cannot divert their attention away from the phantom sound in their heads. We found that sazetidine-A or varenicline normalized tinnitus-related reductions in GABAergic input currents onto A1 layer 5 PNs. We then tested sazetidine-A and varenicline for the management of tinnitus using our tinnitus animal model. Subcutaneous injection of sazetidine-A or varenicline, 1 h prior to tinnitus testing, significantly decreased the rat's behavioral evidence of tinnitus in a dose-dependent manner. Collectively, these results support the need for additional clinical investigations of partial desensitizing nAChR agonists sazetidine-A and varenicline for the treatment of tinnitus.
Collapse
Affiliation(s)
- Madan Ghimire
- Department of Pharmacology, Southern Illinois University School of Medicine, Springfield, IL, United States
| | - Rui Cai
- Department of Pharmacology, Southern Illinois University School of Medicine, Springfield, IL, United States
| | - Lynne Ling
- Department of Pharmacology, Southern Illinois University School of Medicine, Springfield, IL, United States
| | - Kevin A. Brownell
- Department of Pharmacology, Southern Illinois University School of Medicine, Springfield, IL, United States
| | - Kurt W. Wisner
- Department of Otolaryngology, Head and Neck Surgery, Southern Illinois University School of Medicine, Springfield, IL, United States
| | - Brandon C. Cox
- Department of Pharmacology, Southern Illinois University School of Medicine, Springfield, IL, United States
- Department of Otolaryngology, Head and Neck Surgery, Southern Illinois University School of Medicine, Springfield, IL, United States
| | - Troy A. Hackett
- Department of Hearing and Speech Sciences, Vanderbilt University Medical Center, Nashville, TN, United States
| | - Thomas J. Brozoski
- Department of Otolaryngology, Head and Neck Surgery, Southern Illinois University School of Medicine, Springfield, IL, United States
| | - Donald M. Caspary
- Department of Pharmacology, Southern Illinois University School of Medicine, Springfield, IL, United States
- Department of Otolaryngology, Head and Neck Surgery, Southern Illinois University School of Medicine, Springfield, IL, United States
| |
Collapse
|