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Ma N, Chau JPC, Deng Y, Choi KC. Effects of a structured Tai Chi program on improving physical activity levels, exercise self-efficacy and health outcomes among pregnant women: study protocol for a randomised controlled trial. BMJ Open 2023; 13:e065640. [PMID: 36806130 PMCID: PMC9944291 DOI: 10.1136/bmjopen-2022-065640] [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] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/22/2023] Open
Abstract
INTRODUCTION Tai Chi is a traditional Chinese martial art developed over 300 years ago. Although studies report that Tai Chi benefits practitioners' cardiovascular health, respiratory system and psychological outcomes, only limited studies have evaluated the effects of Tai Chi on pregnant women. More evidence is needed to examine the effects of a Tai Chi exercise programme among pregnant women. METHODS AND ANALYSIS This is a randomised controlled trial to investigate the effects of a 12-week theory-based Tai Chi programme on improving physical activity levels, exercise self-efficacy and health outcomes among pregnant women. A total of 136 low-risk pregnant women (68 per group) were recruited and randomly assigned to receive usual care or usual care with the Tai Chi programme consisting of two group-based educational sessions and three Tai Chi sessions over 3 months. A Tai Chi video was provided to the participants to facilitate self-practice at home. Outcomes including physical activity levels, exercise self-efficacy, weight gain, prenatal depressive symptoms and prenatal anxiety symptoms were evaluated at baseline (T0), 6th week after intervention commencement (T1) and 1 week after intervention completion (ie, post-intervention) (T2). Intention-to-treat analysis and generalised estimating equations model will be used to analyse repeated outcome measures. ETHICS AND DISSEMINATION The study has been approved by the Joint Chinese University of Hong Kong-New Territories East Cluster Clinical Research Ethics Committee (Ref. 2022.043-T). Written consent was obtained from each participant. The findings will be disseminated in peer-reviewed journals and conference presentations. TRIAL REGISTRATION NUMBER ChiCTR2200059920.
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Affiliation(s)
- Nan Ma
- Nethersole School of Nursing, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
| | - Janita Pak Chun Chau
- Nethersole School of Nursing, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
| | - Yongfang Deng
- Obstetrics, Guangzhou Women and Children's Medical Center, Guangzhou, Guangdong, China
| | - Kai Chow Choi
- Nethersole School of Nursing, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
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Liu X, Gao Y, Gao Y, Yang Y, Li W, Ma N, Zhao J. Synthesis of polyaspartic acid-glycidyl adduct and evaluation of its scale inhibition performance and corrosion inhibition capacity for Q235 steel applications. ARAB J CHEM 2023. [DOI: 10.1016/j.arabjc.2022.104515] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
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Ma N, Chau JPC, Liang W, Choi KC. A review of the behaviour change techniques used in physical activity promotion or maintenance interventions in pregnant women. Midwifery 2023; 117:103574. [PMID: 36521198 DOI: 10.1016/j.midw.2022.103574] [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: 03/29/2022] [Revised: 11/08/2022] [Accepted: 12/05/2022] [Indexed: 12/12/2022]
Abstract
BACKGROUND The proportion of women meeting the recommended physical activity requirement is low. Evidence suggests behaviour change techniques (BCTs) can be effective in initiating and maintaining behaviour change and improving physical activity. PURPOSE To synthesise the evidence related to the attributes of BCT-based physical activity interventions targeted at pregnant women. METHODS A systematic search of studies was made. Randomised controlled trials aiming to improve or maintain physical activity in pregnant women were included. Trials were categorised into 'very promising', 'quite promising', or 'non-promising' according to the intervention effectiveness. One-way analysis of variance was used to determine the difference in mean BCTs implemented in promising/ non-promising studies. FINDINGS A total of 18,966 studies were identified and 10 studies were included. 'Problem solving', 'social support (unspecified)', 'graded tasks', 'goal setting (behaviour)', 'instruction on how to perform a behaviour', 'self-monitoring of behaviour', 'demonstration of the behaviour', and 'action planning' were rated as promising BCTs. DISCUSSION Specific types of BCTs might be associated with physical activity promotion or maintenance during pregnancy. More high-quality randomised controlled trials investigating the effectiveness of individual or combinations of BCTs on physical activity in pregnant women are needed.
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Affiliation(s)
- Nan Ma
- The Nethersole School of Nursing, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
| | - Janita Pak Chun Chau
- The Nethersole School of Nursing, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China.
| | - Wei Liang
- The Nethersole School of Nursing, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
| | - Kai Chow Choi
- The Nethersole School of Nursing, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
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Lu C, Dong W, Zou Y, Wang Z, Tan J, Bai X, Ma N, Ge Y, Zhao Q, Xu X. Direct Z-Scheme SnSe 2/SnSe Heterostructure Passivated by Al 2O 3 for Highly Stable and Sensitive Photoelectrochemical Photodetectors. ACS Appl Mater Interfaces 2023; 15:6156-6168. [PMID: 36669150 DOI: 10.1021/acsami.2c19762] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
To mimic the natural photosynthesis system, a Z-scheme heterostructure is proposed as a viable and effective strategy for efficient solar energy utilization such as photocatalysis and photoelectrochemical (PEC) water splitting due to the high carrier separation efficiency, fast charge transport, strong redox, and wide light absorption. However, it remains a huge challenge to form a direct Z-scheme heterostructure due to the internal electric-field restriction and vital band-alignment at the interface. Herein, the van der Waals heterostructure based on the allotrope SnSe2 and SnSe is designed and synthesized by a two-step vapor phase deposition method to overcome the limitation in the formation of the Z-scheme heterostructure for the first time. The Z-scheme heterostructure of SnSe2/SnSe is confirmed by X-ray photoelectron spectroscopy, ultraviolet photoelectron spectroscopy, PEC measurement, density functional theory calculations, and water splitting. Strikingly, the PEC photodetectors based on the Z-scheme heterostructure show a synergistic effect of superior stability from SnSe and fast photoresponse from SnSe2. As such, the SnSe2/SnSe Z-scheme heterostructure shows a good photodetection performance in the ultraviolet to visible wavelength range. Furthermore, the photodetector shows a faster response/recovery time of 13/14 ms, a higher photosensitivity of 529.13 μA/W, and a higher detectivity of 4.94 × 109 Jones at 475 nm compared with those of single components. Furthermore, the photodetection stability of the SnSe2/SnSe is also greatly improved by a-thin-Al2O3-layer passivation. The results imply the promising rational design of a direct Z-scheme heterostructure with efficient charge transfer for high performance of optoelectronic devices.
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Affiliation(s)
- Chunhui Lu
- Shaanxi Joint Lab of Graphene, State Key Laboratory of Photon-Technology in Western China Energy, International Collaborative Center on Photoelectric Technology and Nano Functional Materials, Institute of Photonics & Photon-Technology, Northwest University, Xi'an, 710069, China
| | - Wen Dong
- Shaanxi Joint Lab of Graphene, State Key Laboratory of Photon-Technology in Western China Energy, International Collaborative Center on Photoelectric Technology and Nano Functional Materials, Institute of Photonics & Photon-Technology, Northwest University, Xi'an, 710069, China
| | - Yongqiang Zou
- Shaanxi Joint Lab of Graphene, State Key Laboratory of Photon-Technology in Western China Energy, International Collaborative Center on Photoelectric Technology and Nano Functional Materials, Institute of Photonics & Photon-Technology, Northwest University, Xi'an, 710069, China
| | - Zeyun Wang
- Shaanxi Joint Lab of Graphene, State Key Laboratory of Photon-Technology in Western China Energy, International Collaborative Center on Photoelectric Technology and Nano Functional Materials, Institute of Photonics & Photon-Technology, Northwest University, Xi'an, 710069, China
| | - Jiayu Tan
- Shaanxi Joint Lab of Graphene, State Key Laboratory of Photon-Technology in Western China Energy, International Collaborative Center on Photoelectric Technology and Nano Functional Materials, Institute of Photonics & Photon-Technology, Northwest University, Xi'an, 710069, China
| | - Xing Bai
- School of Mechanical and Precision Instrument Engineering, Xi'an University of Technology, Xi'an, 710048, China
| | - Nan Ma
- Shaanxi Joint Lab of Graphene, State Key Laboratory of Photon-Technology in Western China Energy, International Collaborative Center on Photoelectric Technology and Nano Functional Materials, Institute of Photonics & Photon-Technology, Northwest University, Xi'an, 710069, China
| | - Yanqing Ge
- Shaanxi Joint Lab of Graphene, State Key Laboratory of Photon-Technology in Western China Energy, International Collaborative Center on Photoelectric Technology and Nano Functional Materials, Institute of Photonics & Photon-Technology, Northwest University, Xi'an, 710069, China
| | - Qiyi Zhao
- School of Science, Xi'an University of Posts &Telecommunications, Xi'an, 710121, China
| | - Xinlong Xu
- Shaanxi Joint Lab of Graphene, State Key Laboratory of Photon-Technology in Western China Energy, International Collaborative Center on Photoelectric Technology and Nano Functional Materials, Institute of Photonics & Photon-Technology, Northwest University, Xi'an, 710069, China
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Lu C, Luo M, Dong W, Ge Y, Han T, Liu Y, Xue X, Ma N, Huang Y, Zhou Y, Xu X. Bi 2 Te 3 /Bi 2 Se 3 /Bi 2 S 3 Cascade Heterostructure for Fast-Response and High-Photoresponsivity Photodetector and High-Efficiency Water Splitting with a Small Bias Voltage. Adv Sci (Weinh) 2023; 10:e2205460. [PMID: 36574467 PMCID: PMC9951346 DOI: 10.1002/advs.202205460] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Revised: 12/08/2022] [Indexed: 05/14/2023]
Abstract
Large-scale multi-heterostructure and optimal band alignment are significantly challenging but vital for photoelectrochemical (PEC)-type photodetector and water splitting. Herein, the centimeter-scale bismuth chalcogenides-based cascade heterostructure is successfully synthesized by a sequential vapor phase deposition method. The multi-staggered band alignment of Bi2 Te3 /Bi2 Se3 /Bi2 S3 is optimized and verified by X-ray photoelectron spectroscopy. The PEC photodetectors based on these cascade heterostructures demonstrate the highest photoresponsivity (103 mA W-1 at -0.1 V and 3.5 mAW-1 at 0 V under 475 nm light excitation) among the previous reports based on two-dimensional materials and related heterostructures. Furthermore, the photodetectors display a fast response (≈8 ms), a high detectivity (8.96 × 109 Jones), a high external quantum efficiency (26.17%), and a high incident photon-to-current efficiency (27.04%) at 475 nm. Due to the rapid charge transport and efficient light absorption, the Bi2 Te3 /Bi2 Se3 /Bi2 S3 cascade heterostructure demonstrates a highly efficient hydrogen production rate (≈0.416 mmol cm-2 h-1 and ≈14.320 µmol cm-2 h-1 with or without sacrificial agent, respectively), which is far superior to those of pure bismuth chalcogenides and its type-II heterostructures. The large-scale cascade heterostructure offers an innovative method to improve the performance of optoelectronic devices in the future.
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Affiliation(s)
- Chunhui Lu
- Shaanxi Joint Lab of GrapheneState Key Laboratory of Photon‐Technology in Western China EnergyInternational Collaborative Center on Photoelectric Technology and Nano Functional MaterialsInstitute of Photonics & Photon‐TechnologySchool of PhysicsNorthwest UniversityXi'an710069China
| | - Mingwei Luo
- Shaanxi Joint Lab of GrapheneState Key Laboratory of Photon‐Technology in Western China EnergyInternational Collaborative Center on Photoelectric Technology and Nano Functional MaterialsInstitute of Photonics & Photon‐TechnologySchool of PhysicsNorthwest UniversityXi'an710069China
| | - Wen Dong
- Shaanxi Joint Lab of GrapheneState Key Laboratory of Photon‐Technology in Western China EnergyInternational Collaborative Center on Photoelectric Technology and Nano Functional MaterialsInstitute of Photonics & Photon‐TechnologySchool of PhysicsNorthwest UniversityXi'an710069China
| | - Yanqing Ge
- Shaanxi Joint Lab of GrapheneState Key Laboratory of Photon‐Technology in Western China EnergyInternational Collaborative Center on Photoelectric Technology and Nano Functional MaterialsInstitute of Photonics & Photon‐TechnologySchool of PhysicsNorthwest UniversityXi'an710069China
| | - Taotao Han
- Shaanxi Joint Lab of GrapheneState Key Laboratory of Photon‐Technology in Western China EnergyInternational Collaborative Center on Photoelectric Technology and Nano Functional MaterialsInstitute of Photonics & Photon‐TechnologySchool of PhysicsNorthwest UniversityXi'an710069China
| | - Yuqi Liu
- Shaanxi Joint Lab of GrapheneState Key Laboratory of Photon‐Technology in Western China EnergyInternational Collaborative Center on Photoelectric Technology and Nano Functional MaterialsInstitute of Photonics & Photon‐TechnologySchool of PhysicsNorthwest UniversityXi'an710069China
| | - Xinyi Xue
- Shaanxi Joint Lab of GrapheneState Key Laboratory of Photon‐Technology in Western China EnergyInternational Collaborative Center on Photoelectric Technology and Nano Functional MaterialsInstitute of Photonics & Photon‐TechnologySchool of PhysicsNorthwest UniversityXi'an710069China
| | - Nan Ma
- Shaanxi Joint Lab of GrapheneState Key Laboratory of Photon‐Technology in Western China EnergyInternational Collaborative Center on Photoelectric Technology and Nano Functional MaterialsInstitute of Photonics & Photon‐TechnologySchool of PhysicsNorthwest UniversityXi'an710069China
| | - Yuanyuan Huang
- Shaanxi Joint Lab of GrapheneState Key Laboratory of Photon‐Technology in Western China EnergyInternational Collaborative Center on Photoelectric Technology and Nano Functional MaterialsInstitute of Photonics & Photon‐TechnologySchool of PhysicsNorthwest UniversityXi'an710069China
| | - Yixuan Zhou
- Shaanxi Joint Lab of GrapheneState Key Laboratory of Photon‐Technology in Western China EnergyInternational Collaborative Center on Photoelectric Technology and Nano Functional MaterialsInstitute of Photonics & Photon‐TechnologySchool of PhysicsNorthwest UniversityXi'an710069China
| | - Xinlong Xu
- Shaanxi Joint Lab of GrapheneState Key Laboratory of Photon‐Technology in Western China EnergyInternational Collaborative Center on Photoelectric Technology and Nano Functional MaterialsInstitute of Photonics & Photon‐TechnologySchool of PhysicsNorthwest UniversityXi'an710069China
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Ma N, Low S, Hasan S, Banna S, Patel S, Kalsi T. Provision of eye care services and interventions in care homes: a narrative synthesis review. Eur Geriatr Med 2023; 14:153-164. [PMID: 36645609 PMCID: PMC9841945 DOI: 10.1007/s41999-022-00741-2] [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] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Accepted: 12/29/2022] [Indexed: 01/17/2023]
Abstract
BACKGROUND The prevalence of eye disease and visual impairment in care home residents is disproportionately higher compared to the general population. Access to eye care services and treatment can be variable for this vulnerable population. OBJECTIVE This paper reviews the available evidence of services and interventions for delivering eye care to care home residents. The key review questions are: (1) What is the existing evidence for eye care interventions or services (including service configuration) for care home residents? (2) Does the provision of these interventions or services improve outcomes? METHODS Literature search of EMBASE/MEDLINE for original papers published since 1995. Two reviewers independently reviewed abstracts/papers. Data were extracted and evaluated using narrative synthesis. RESULTS 13 original papers met the inclusion criteria. Domiciliary optometrist services improved diagnosis and management of eye conditions, with one study showing 53% of residents benefited from direct ophthalmology intervention. Provision of interventions, such as cataract surgery, refractive error correction and low-vision rehabilitation, improved visual acuity and vision-related quality of life but did not improve cognitive or physical function, depression or health-related quality of life. There was little UK-based literature to inform eye service design or interventions to improve outcomes such as falls. CONCLUSION Care home-based eye assessments improve the management of eye conditions. Interventions improve visual acuity and vision-related quality of life. Further research is needed to better understand current UK services, access difficulties or examples of good practice as well as to identify and test cost-effective service models for this vulnerable group.
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Affiliation(s)
- N Ma
- Ageing and Health Department, Guy's and St Thomas' NHS Foundation Trust, Westminster Bridge Road, London, SE1 7EH, UK.
| | - S Low
- Ageing and Health Department, Guy's and St Thomas' NHS Foundation Trust, Westminster Bridge Road, London, SE1 7EH, UK
| | - S Hasan
- Quay Health Solutions GP Care Home Service, London, UK
| | - S Banna
- Ageing and Health Department, Guy's and St Thomas' NHS Foundation Trust, Westminster Bridge Road, London, SE1 7EH, UK
| | | | - T Kalsi
- Ageing and Health Department, Guy's and St Thomas' NHS Foundation Trust, Westminster Bridge Road, London, SE1 7EH, UK.,King's College London, London, UK
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Zhang JF, Ma N, Zhang WS, Cheng GJ, Lv L, Zhang L, Li RM. Current management of subarachnoid hemorrhage in a northern urban Chinese population: a multi-center surveillance study. Eur Rev Med Pharmacol Sci 2023; 27:1007-1015. [PMID: 36808346 DOI: 10.26355/eurrev_202302_31195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 02/23/2023]
Abstract
OBJECTIVE The current management of subarachnoid hemorrhage (SAH) in the urban Chinese population remains unclear and the relevant literature is still lacking. Therefore, this work aimed to investigate the recent clinical practice in the management of spontaneous SAH in an urban population-based setting. PATIENTS AND METHODS From 2009 to 2011, the China Epidemiology Research In Subarachnoid Hemorrhage (CHERISH) project, which was a two-year prospective, multi-center, population-based, case-control study, was performed in the northern urban Chinese population. SAH cases were described in terms of their features, clinical management, and in-hospital outcomes. RESULTS Totally of 226 cases were enrolled with a final diagnosis of primary spontaneous SAH (65% of females; mean age, 58.5±13.2 years; range, 20-87 years). Among them, 92% of these patients received nimodipine, while 93% took mannitol. Meanwhile, 40% of them received traditional Chinese medicine (TCM), while 43% took neuroprotective agents. Endovascular coiling was applied in 26% of 98 angiography-confirmed intracranial aneurysms (IA) cases, while neurosurgical clipping was in 5% of them. CONCLUSIONS Our findings on the management of SAH in the northern metropolitan Chinese population reveal that nimodipine is an effective medical therapy with a high rate of use. There is also a high utilization rate of alternative medical interventions. Endovascular coiling occlusion is more common than neurosurgical clipping. Therefore, regionally traditional therapy may be a key factor for the difference in the treatment of SAH between northern and southern China.
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Affiliation(s)
- J-F Zhang
- Baotou Central Hospital, Baotou, Inner Mongolia, China.
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Li S, Wu J, Ma N, Liu W, Shao M, Ying N, Zhu L. Prediction of genome-wide imipenem resistance features in Klebsiella pneumoniae using machine learning. J Med Microbiol 2023; 72. [PMID: 36753438 DOI: 10.1099/jmm.0.001657] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023] Open
Abstract
Introduction. The resistance rate of Klebsiella pneumoniae (K. pneumoniae) to imipenem is increasing year by year, and the imipenem resistance mechanism of K. pneumoniae is complex. Therefore, it is urgent to develop new strategies to explore the resistance mechanism of imipenem for its effective and accurate use in clinical practice.Hypothesis/Gap sStatement. Machine learning could identify resistance features and biological process that influence microbial resistance from whole-genome sequencing (WGS) data.Aims. This work aimed to predict imipenem resistance genetic features in K. pneumoniae from whole-genome k-mer features, and analyse their function for understanding its resistance mechanism.Methods. This study analysed WGS data of K. pneumoniae combined with resistance phenotype for imipenem, and established K. pneumoniae to imipenem genotype-phenotype model to predict resistance features using chi-squared test and random forest. An external clinical dataset was used to verify prediction power of resistance features. The potential genes were identified through alignment the resistance features with the K. pneumoniae reference genome using blastn, the functions of potential genes were further analysed to explore its resistance-related signalling pathways with GO and KEGG analysis, the resistance sequence patterns were screened using streme software. Finally, the resistance features were combined and modelled through four machine-learning algorithms (logistic regression, SVM, GBDT and XGBoost) to evaluate their phenotype prediction ability.Results. A total of 16 670 imipenem resistance features were predicted from genotype-phenotype model. The 30 potential genes were identified by annotating the resistance features and corresponded to known antibiotic-related genes (mdtM, dedA, rne, etc.). GO and KEGG pathway analyses indicated the possible association of imipenem resistance with metabolism process and cell membrane. CRYCAGCDN and CGRDAAAN were found from the imipenem resistance features, which were widely presented in the reported β-lactam resistance genes (bla SHV, bla CTX-M, bla TEM, etc.), and YCYAGCMCAST with metabolic functions (organic substance metabolic process, nitrogen compound metabolic process and cellular metabolic process) was identified from the top 50 resistance features. The 25 resistance genes in the training dataset included 19 genes in the external dataset, which verified the accuracy of prediction. The area under curve values of logistics regression, SVM, GBDT and XGBoost were 0.965, 0.966, 0.969 and 0.969, respectively, indicating that the imipenem resistance features have a strong prediction power.Conclusion. Machine-learning methods could effectively predict the imipenem resistance feature in K. pneumoniae, and provide resistance sequence profiles for predicting resistance phenotype and exploring potential resistance mechanisms. It provides an important insight into the potential therapeutic strategies of K. pneumoniae resistance to imipenem, and speed up the application of machine learning in routine diagnosis.
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Affiliation(s)
- Shanshan Li
- College of Automation, Hangzhou Dianzi University, Hangzhou, Zhejiang, 310018, PR China
| | - Jun Wu
- Lin'an Center for Disease Control and Prevention, Lin'an, 311300, PR China
| | - Nan Ma
- College of Automation, Hangzhou Dianzi University, Hangzhou, Zhejiang, 310018, PR China
| | - Wenjia Liu
- College of Automation, Hangzhou Dianzi University, Hangzhou, Zhejiang, 310018, PR China.,College of Electronics and Information Engineering, Hangzhou Dianzi University, Hangzhou 310018, PR China
| | - Mengjie Shao
- College of Automation, Hangzhou Dianzi University, Hangzhou, Zhejiang, 310018, PR China
| | - Nanjiao Ying
- College of Automation, Hangzhou Dianzi University, Hangzhou, Zhejiang, 310018, PR China.,Institute of Biomedical Engineering and Instrument, Hangzhou Dianzi University, Hangzhou, Zhejiang, 310018, PR China
| | - Lei Zhu
- College of Automation, Hangzhou Dianzi University, Hangzhou, Zhejiang, 310018, PR China.,Institute of Biomedical Engineering and Instrument, Hangzhou Dianzi University, Hangzhou, Zhejiang, 310018, PR China
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Ma N, Zhang Y, Wang T, Sun Y, Cai S. The preventive effect of Chinese sumac fruit against monosodium urate-induced gouty arthritis in rats by regulating several inflammatory pathways. Food Funct 2023; 14:1148-1159. [PMID: 36601890 DOI: 10.1039/d2fo02860c] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Chinese sumac (Rhus chinensis Mill.) fruit is a traditional Chinese medicinal material that can be consumed daily. This study aimed to investigate whether the ethanol extract of sumac fruits can ameliorate monosodium urate-induced gouty arthritis in rats from the perspective of inflammation. Results showed that the extract of Chinese sumac fruits can obviously prevent monosodium urate-induced gouty arthritis in rats. Further analyses revealed that this bioactivity may be mainly achieved by modulating several inflammatory pathways, including NLRP3, NF-κB, and MAPK pathways. In addition, the extract can also improve oxidative stress by reducing the levels of malondialdehyde and myeloperoxidase, increasing the contents of superoxide dismutase and glutathione. In conclusion, this study revealed that the Chinese sumac fruit can alleviate the pathological symptoms of gouty arthritis by inhibiting inflammatory responses and oxidative stress, which can provide a theoretical basis for the use of Chinese sumac fruits as a Chinese herbal medicine and health food for the prevention and treatment of gouty arthritis.
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Affiliation(s)
- Nan Ma
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming, Yunnan Province, 650500, People's Republic of China.
| | - Yuanyue Zhang
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming, Yunnan Province, 650500, People's Republic of China.
| | - Tao Wang
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming, Yunnan Province, 650500, People's Republic of China.
| | - Yilin Sun
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming, Yunnan Province, 650500, People's Republic of China.
| | - Shengbao Cai
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming, Yunnan Province, 650500, People's Republic of China.
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Shao M, Ying N, Liang Q, Ma N, Leptihn S, Yu Y, Chen H, Liu C, Hua X. Pdif-mediated antibiotic resistance genes transfer in bacteria identified by pdifFinder. Brief Bioinform 2023; 24:6873868. [PMID: 36470841 DOI: 10.1093/bib/bbac521] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Revised: 10/31/2022] [Accepted: 11/02/2022] [Indexed: 12/12/2022] Open
Abstract
Modules consisting of antibiotic resistance genes (ARGs) flanked by inverted repeat Xer-specific recombination sites were thought to be mobile genetic elements that promote horizontal transmission. Less frequently, the presence of mobile modules in plasmids, which facilitate a pdif-mediated ARGs transfer, has been reported. Here, numerous ARGs and toxin-antitoxin genes have been found in pdif site pairs. However, the mechanisms underlying this apparent genetic mobility is currently not understood, and the studies relating to pdif-mediated ARGs transfer onto most bacterial genera are lacking. We developed the web server pdifFinder based on an algorithm called PdifSM that allows the prediction of diverse pdif-ARGs modules in bacterial genomes. Using test set consisting of almost 32 thousand plasmids from 717 species, PdifSM identified 481 plasmids from various bacteria containing pdif sites with ARGs. We found 28-bp-long elements from different genera with clear base preferences. The data we obtained indicate that XerCD-dif site-specific recombination mechanism may have evolutionary adapted to facilitate the pdif-mediated ARGs transfer. Through multiple sequence alignment and evolutionary analyses of duplicated pdif-ARGs modules, we discovered that pdif sites allow an interspecies transfer of ARGs but also across different genera. Mutations in pdif sites generate diverse arrays of modules which mediate multidrug-resistance, as these contain variable numbers of diverse ARGs, insertion sequences and other functional genes. The identification of pdif-ARGs modules and studies focused on the mechanism of ARGs co-transfer will help us to understand and possibly allow controlling the spread of MDR bacteria in clinical settings. The pdifFinder code, standalone software package and description with tutorials are available at https://github.com/mjshao06/pdifFinder.
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Affiliation(s)
- Mengjie Shao
- School of Automation, Hangzhou Dianzi University, Hangzhou, Zhejiang, 310018, PR China
| | - Nanjiao Ying
- School of Automation, Hangzhou Dianzi University, Hangzhou, Zhejiang, 310018, PR China
| | - Qian Liang
- Hangzhou Digital Micro Biotech Co., Ltd., Hangzhou, 311215, China
| | - Nan Ma
- School of Automation, Hangzhou Dianzi University, Hangzhou, Zhejiang, 310018, PR China
| | - Sebastian Leptihn
- Department of Infectious Diseases, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, 310016, PR China.,Zhejiang University-University of Edinburgh Institute, School of Medicine, Zhejiang University, Hangzhou, China.,University of Edinburgh Medical School, Biomedical Sciences, College of Medicine and Veterinary Medicine, The University of Edinburgh, Edinburgh, United Kingdom
| | - Yunsong Yu
- Department of Infectious Diseases, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, 310016, PR China.,Key Laboratory of Microbial Technology and Bioinformatics of Zhejiang Province, Hangzhou, Zhejiang, 310016, PR China.,Regional Medical Center for National Institute of Respiratory Diseases, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, 310016, PR China
| | - Huan Chen
- Hangzhou Digital Micro Biotech Co., Ltd., Hangzhou, 311215, China.,College of Life Science, Zhejiang Chinese Medical University, Hangzhou, China
| | - Chengzhi Liu
- Hangzhou Digital Micro Biotech Co., Ltd., Hangzhou, 311215, China
| | - Xiaoting Hua
- Department of Infectious Diseases, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, 310016, PR China.,Key Laboratory of Microbial Technology and Bioinformatics of Zhejiang Province, Hangzhou, Zhejiang, 310016, PR China.,Regional Medical Center for National Institute of Respiratory Diseases, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, 310016, PR China.,Alibaba-Zhejiang University Joint Research Center of Future Digital Healthcare
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111
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Yao Y, Ma N, Wang C, Wu Z, Xu C, Zhang J. Research and implementation of variable-domain fuzzy PID intelligent control method based on Q-Learning for self-driving in complex scenarios. Math Biosci Eng 2023; 20:6016-6029. [PMID: 36896561 DOI: 10.3934/mbe.2023260] [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: 06/18/2023]
Abstract
In the control of the self-driving vehicles, PID controllers are widely used due to their simple structure and good stability. However, in complex self-driving scenarios such as curvature curves, car following, overtaking, etc., it is necessary to ensure the stable control accuracy of the vehicles. Some researchers used fuzzy PID to dynamically change the parameters of PID to ensure that the vehicle control remains in a stable state. It is difficult to ensure the control effect of the fuzzy controller when the size of the domain is not selected properly. This paper designs a variable-domain fuzzy PID intelligent control method based on Q-Learning to make the system robust and adaptable, which is dynamically changed the size of the domain to further ensure the control effect of the vehicle. The variable-domain fuzzy PID algorithm based on Q-Learning takes the error and the error rate of change as input and uses the Q-Learning method to learn the scaling factor online so as to achieve online PID parameters adjustment. The proposed method is verified on the Panosim simulation platform.The experiment shows that the accuracy is improved by 15% compared with the traditional fuzzy PID, which reflects the effectiveness of the algorithm.
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Affiliation(s)
- Yongqiang Yao
- Beijing Key Laboratory of Information Service Engineering, Beijing Union University, Beijing 100101, China
| | - Nan Ma
- Faculty of Information Technology, Beijing University of Technology, Beijing 100124, China
| | - Cheng Wang
- Beijing Key Laboratory of Information Service Engineering, Beijing Union University, Beijing 100101, China
| | - Zhixuan Wu
- Beijing Key Laboratory of Information Service Engineering, Beijing Union University, Beijing 100101, China
| | - Cheng Xu
- Beijing Key Laboratory of Information Service Engineering, Beijing Union University, Beijing 100101, China
| | - Jin Zhang
- Beijing Key Laboratory of Information Service Engineering, Beijing Union University, Beijing 100101, China
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112
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Lu J, Wan H, Li P, Zhao X, Ma N, Gao Y. Exploring High-order Spatio-temporal Correlations from Skeleton for Person Re-identification. IEEE Trans Image Process 2023; PP:949-963. [PMID: 37021861 DOI: 10.1109/tip.2023.3236144] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
Person re-identification (Re-ID) has become a hot research topic due to its widespread applications. Conducting person Re-ID in video sequences is a practical requirement, in which the crucial challenge is how to pursue a robust video representation based on spatial and temporal features. However, most of the previous methods only consider how to integrate part-level features in the spatio-temporal range, while how to model and generate the part-correlations is little exploited. In this paper, we propose a skeleton-based dynamic hypergraph framework, namely Skeletal Temporal Dynamic Hypergraph Neural Network (ST-DHGNN) for person Re-ID, which resorts to modeling the high-order correlations among various body parts based on a time series of skeletal information. Specifically, multi-shape and multi-scale patches are heuristically cropped from feature maps, constituting spatial representations in different frames. A joint-centered hypergraph and a bone-centered hypergraph are constructed in parallel from multiple body parts (i.e., head, trunk, and legs) with spatio-temporal multi-granularity in the entire video sequence, in which the graph vertices representing regional features and hyperedges denoting relationships. Dynamic hypergraph propagation containing the re-planning module and the hyperedge elimination module is proposed to better integrate features among vertices. Feature aggregation and attention mechanisms are also adopted to obtain a better video representation for person Re-ID. Experiments show that the proposed method performs significantly better than the state-of-the-art on three video-based person Re-ID datasets, including iLIDS-VID, PRID-2011, and MARS.
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113
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Ma N, Zhao Y, Li L, Kong J, Zhang X. Ferritin-Enhanced Direct MicroRNA Detection via Controlled Radical Polymerization. Anal Chem 2023; 95:1273-1279. [PMID: 36539984 DOI: 10.1021/acs.analchem.2c04063] [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: 12/24/2022]
Abstract
Accurate quantitative detection of tracing nucleic acids remains a great challenge in cancer genetic testing. It is crucial to propose a low-cost and highly sensitive direct gene detection method for cancer prevention and treatment. Herein, this work reports an ultrasensitive biosensor via a ferritin-enhanced atom-transfer radical polymerization (Ft-ATRP) process. Intriguingly, microRNA-21, an early marker of lung cancer, can be detected without being transcribed in advance by an innovative signal amplification strategy using ferritin-mediated aggregation of hydrophilic nitroxide radical monomers as an electrochemical biosensor. The sensor uses peptide nucleic acid probes modified on a gold electrode to accurately bind the target lung cancer marker in the sample, and then ferritin, which is naturally present in human blood, induces Ft-ATRP on the electrode surface under mild conditions. Many of 4-methacryloyloxy-2,2,6,6-tetramethylpiperidine 1-oxyl free radical (MATMP) monomers with electrochemical signals are combined into polymeric chains to be modified on target assays. The limit of detection (LOD) of microRNA-21 is as low as 6.03 fM, and the detection concentration ranges from 0.01 to 100 pM (R2 = 0.994). The RNA biosensor can realize great performance analysis of complicated samples in simple operation, in addition, the detection process used by the catalyst, polymers containing electrochemical signals, and the electrolyte solution all have good water solubility. The superior performance of the RNA biosensor demonstrates its potential to screen and identify lung cancer in target patients.
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Affiliation(s)
- Nan Ma
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu210094, P. R. China
| | - Yu Zhao
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu210094, P. R. China
| | - Lianzhi Li
- School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng252059, P. R. China
| | - Jinming Kong
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu210094, P. R. China
| | - Xueji Zhang
- School of Biomedical Engineering, Shenzhen University Health Science Center, Shenzhen, Guangdong518060, P. R. China
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Ma N, Low S, Hasan S, Banna S, Patel S, Kalsi T. 1210 PROVISION OF EYE CARE SERVICES AND INTERVENTIONS IN CARE HOMES - A NARRATIVE SYNTHESIS REVIEW. Age Ageing 2023. [DOI: 10.1093/ageing/afac322.090] [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: 01/18/2023] Open
Abstract
Abstract
Introduction
The prevalence of eye disease and visual impairment in care home residents is disproportionately higher compared to the general population. Access to eye care services and treatment can be variable for this vulnerable population.
Objective
This narrative synthesis reviews the available evidence of services and interventions for delivering eye care to care home residents. The key review questions:
Methods
Literature search of EMBASE/MEDLINE for original papers published since 1995. Two reviewers independently reviewed abstracts/papers. Data was extracted and evaluated using narrative synthesis.
Results
13 original papers met the inclusion criteria. On-site optometrist-led services improved diagnosis and management of eye conditions, with one study showing 53% of residents benefited from direct ophthalmology intervention. Provision of interventions such as cataract surgery, refractive error correction and low vision rehabilitation improved visual acuity and vision-related quality of life but did not improve cognitive or physical function, depression or health-related quality of life. There was little UK-based literature to inform eye service design or interventions to improve outcomes.
Conclusion
Care home-based eye assessments improve the management of eye conditions. Interventions improve visual acuity and vision-related quality of life. Further research and/or clinical service scoping is needed to better understand current UK services, access difficulties or examples of good practice as well as to identify and test cost-effective service models for this vulnerable group.
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Affiliation(s)
- N Ma
- Guy’s and St Thomas’ NHS Foundation Trust , London, United Kingdom
| | - S Low
- Guy’s and St Thomas’ NHS Foundation Trust , London, United Kingdom
| | - S Hasan
- Quay Health Solutions GP Care Home Service , Southwark
| | - S Banna
- Guy’s and St Thomas’ NHS Foundation Trust , London, United Kingdom
| | | | - T Kalsi
- Guy’s and St Thomas’ NHS Foundation Trust , London, United Kingdom
- King’s College London
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Ma N, Low S, Hasan S, Lawal A, Patel S, Nurse K, McNaughton G, Aggarwal R, Evans J, Koria R, Lam C, Chakravorty M, Stanley G, Banna S, Kalsi T. 1226 A MULTI-DISCIPLINARY APPROACH TO TRANSFORMING EYE CARE SERVICES FOR CARE HOME RESIDENTS. Age Ageing 2023. [DOI: 10.1093/ageing/afac322.114] [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: 01/18/2023] Open
Abstract
Abstract
Introduction
Care home residents can have variable access to eye care services and treatments. We developed a collaborative approach between optometrists, care homes, and primary and secondary care to enable personalised patient-centred care.
Objective
To develop and evaluate an integrated model of eye care for care home residents.
Methods
Small scale plan-do-study-act (PDSA) service tests were completed in three care-homes in Southwark (2 residential, 1 nursing) between November 2021 to May 2022. Processes were compared to historical feedback and hospital-based ophthalmology clinic attendances (Mar 2019-2020). Hospital-like assessments were piloted at two care homes for feasibility and acceptability. Further piloting utilised usual domiciliary optometry-led assessment with multidisciplinary meeting access (including optometrist, GP, geriatrician, ophthalmologist and care home nurse) to reduce duplication of assessments and to evaluate MDM processes and referral rates.
Results
Examination was 100% successful at home (visual acuity and pressure measurement) compared to hospital outpatients (71.7% success visual acuity, 54.5% pressures). Examination was faster than in hospital settings (16 minutes vs 45 minutes-1 hour). Residents were away from usual activities for 32 minutes vs 6 hours for hospital visits including transport. Residents were less distressed with home-based assessments. Did-Not-Attend (DNA) rates reduced (26.7% to 0%), secondary care discharge rates improved (8.4% to 32%). Hospital eye service referral were indicated in 19% -23%, half of which were for consideration of cataract surgery. Alternative conservative plans were agreed at MDM for nursing home residents who were clinically too frail or would not have been able to comply with treatments avoiding 33% unnecessary referrals.
Conclusions
Home-based eye care assessments appear better tolerated and are more efficient for residents, health and care staff. Utilising an MDM for optometrists to discuss residents with ophthalmologists and wider MDT members enabled personalised patient-centred decision-making. Future work to test this borough wide is in progress.
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Affiliation(s)
- N Ma
- Guy’s and St Thomas’ NHS Foundation Trust , London
| | - S Low
- Guy’s and St Thomas’ NHS Foundation Trust , London
| | - S Hasan
- Quay Health Solutions GP Care Home Service , Southwark, London
| | - A Lawal
- Quay Health Solutions GP Care Home Service , Southwark, London
| | | | | | | | | | - J Evans
- Minor Eye Conditions Scheme, Primary Ophthalmic Solutions , London
| | - R Koria
- Minor Eye Conditions Scheme, Primary Ophthalmic Solutions , London
| | - C Lam
- Guy’s and St Thomas’ NHS Foundation Trust , London
| | | | - G Stanley
- Quay Health Solutions GP Care Home Service , Southwark, London
| | - S Banna
- Guy’s and St Thomas’ NHS Foundation Trust , London
| | - T Kalsi
- Guy’s and St Thomas’ NHS Foundation Trust , London
- King’s College London
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Wang M, Wang J, Ma N, Yu S, Kong J, Zhang X. A novel colorimetric detection of glutathione based on stable free radical TEMPO oxidation of 3,3',5,5'-tetramethylbenzizine (TMB) via Copper(II) acetylacetonate catalysis. Spectrochim Acta A Mol Biomol Spectrosc 2023; 285:121875. [PMID: 36170777 DOI: 10.1016/j.saa.2022.121875] [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] [Subscribe] [Scholar Register] [Received: 06/18/2022] [Revised: 08/21/2022] [Accepted: 09/10/2022] [Indexed: 06/16/2023]
Abstract
In this work, a new colorimetric method for the determination of Glutathione (GSH) on the basis of stable free radical 2,2,6,6 - tetramethylpiperidine - 1 - oxyl (TEMPO) oxidation of 3,3',5,5'-tetramethylbenzizine (TMB) via copper(II) acetylacetonate (Cu(acac)2) catalysis was proposed. TEMPO was catalyzed by Cu(acac)2 to produce TEMPO+, then TEMPO+ oxidized TMB to produce oxidized TMB (ox - TMB). The resulting ox - TMB showed blue and possessed a distinct absorption peak about 650 nm. Whereas, GSH prohibited the generation of ox - TMB through inhibiting TMB oxidation. As compared to the case that GSH was absent, significantly enhanced absorption was determined, and was proportional to GSH amount. On this basis, a qualitative and quantitative detection method of GSH with the naked eye and the microplate reader was achieved. The developed TEMPO - based method achieved GSH biosensing with improved sensitivity in a good specificity - manner. The limit of detection (LOD) was 90 μM via naked eye, and the microplate reader was 4.71 μM. And the stable free radical TEMPO possessed higher stability and lower toxicity than traditional oxidant of H2O2. Moreover, this TEMPO - based method achieved good results in the detection of GSH in human serums.
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Affiliation(s)
- Meng Wang
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu 210094, PR China
| | - Jiao Wang
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu 210094, PR China
| | - Nan Ma
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu 210094, PR China
| | - Shuaibing Yu
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu 210094, PR China
| | - Jinming Kong
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu 210094, PR China.
| | - Xueji Zhang
- School of Biomedical Engineering, Shenzhen University Health Science Center, Shenzhen, Guangdong 518060, PR China
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Ren G, Ma N, Lei M. The facilitating effect of identical objects in visual working memory. Front Psychol 2023; 13:1092557. [PMID: 36710737 PMCID: PMC9877330 DOI: 10.3389/fpsyg.2022.1092557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Accepted: 12/21/2022] [Indexed: 01/15/2023] Open
Abstract
According to the associative network of memory representations proposed by embedded processes models, the links between related memory representations were automatically established, which rendered these representations more easily activated. The present study adopted color recall tasks to explore whether the memory performance of identical objects was enhanced via the strengthening links between them, producing facilitating effect of identical objects. In Experiment 1, the number of identical items was manipulated. The results evidenced the facilitating effect, which was positively related to the number of identical objects. Experiment 2 modulated the spatial location of identical objects, which suggested that the facilitating effect was absent when two pairs of identical objects were located diagonally. Furthermore, Experiment 3 suggested that the facilitating effect was observed for the identical items which were presented in the second and fourth quadrants, rather than the first and third quadrants. Together, these results evidenced the facilitating effect of identical objects, which, however, was affected by spatial bias.
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Affiliation(s)
- Guofang Ren
- Education School, Anyang Normal University, Anyang, China
| | - Nan Ma
- Research Center of Brain and Cognitive Neuroscience, Liaoning Normal University, Dalian, China
| | - Ming Lei
- Psychological Research and Counseling Center, Southwest Jiaotong University, Chengdu, China,*Correspondence: Ming Lei,
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118
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Zhou H, Cao S, Zhang S, Li F, Ma N. Design of a Fuel Explosion-Based Chameleon-Like Soft Robot Aided by the Comprehensive Dynamic Model. Cyborg Bionic Syst 2023; 4:0010. [PMID: 36939437 PMCID: PMC10014331 DOI: 10.34133/cbsystems.0010] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2022] [Accepted: 01/12/2023] [Indexed: 01/20/2023] Open
Abstract
Soft robotics have advantages over the traditional rigid ones to achieve the bending motion but face with challenges to realize the rapid and long-distance linear motion due to the lack of a suitable actuation system. In this paper, a new explosion-based soft robot is proposed to generate the axial fast extension by the explosion pressure. To support and predict the performance of this explosion-based soft robot, a novel dynamic model is developed by considering the change of working fluid (molecular numbers) and some unavoidable and influential factors in the combustion process. Then, based on the physical prototype, a set of experiments is conducted to test the performance of the explosion-based soft robot in performing the axial extensions, as well as to validate the model proposed in this article. It is found that the novel explosion-based soft robot can achieve rapid axial extension by the developed explosion-based actuation system. The explosion-based soft robot can achieve 41-mm displacement at a fuel mass of 180 mg. In addition, the proposed dynamic model can be validated with an average error of 1.5%. The proposed approach in this study provides a promising solution for future high-power density explosion-based soft robots.
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Affiliation(s)
- Haiqin Zhou
- Department of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Shunze Cao
- Department of Engineering Mechanics, Tsinghua University, Beijing, China
| | - Shuailong Zhang
- School of Mechatronical Engineering and Beijing Advanced Innovation Center for Intelligent Robots and Systems, Beijing Institute of Technology, Beijing 100081, China
| | - Fenggang Li
- School of Mechatronical Engineering and Beijing Advanced Innovation Center for Intelligent Robots and Systems, Beijing Institute of Technology, Beijing 100081, China
| | - Nan Ma
- Department of Engineering of Lancaster University, Lancaster LA1 4YW, UK
- Address correspondence to:
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119
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Li S, Liu C, Song Y, Ma N, Lu J. Association of Soyfoods or Soybean Products Consumption with Psychological Symptoms: Evidence from a Cross-Sectional Study of Chinese University Students during the COVID-19 Pandemic. Int J Environ Res Public Health 2023; 20:819. [PMID: 36613140 PMCID: PMC9819589 DOI: 10.3390/ijerph20010819] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Revised: 12/24/2022] [Accepted: 12/29/2022] [Indexed: 06/17/2023]
Abstract
There is a strong association between soyfoods or soybean product consumption and adolescent health, but there are few studies on the association between soyfoods or soybean product consumption and psychological symptoms among university students. To this end, this study investigated the association between soyfoods or soybean products consumption and psychological symptoms among Chinese university students and analyzed the association between them. A three-stage stratified whole-group sampling method was used to administer questionnaires on soyfoods or soybean products consumption and psychological symptoms to 7742 university students in China. Self-assessment questionnaires were also administered to confounding variables such as basic demographic information, family status, parental education, body mass index (BMI), and moderate and vigorous physical activity (MVPA). The chi-square test, one-way ANOVA, and logistic regression analysis were used to explore the association and differences between soyfoods or soybean products consumption and psychological symptoms. The proportion of Chinese university students' soyfoods or soybean products consumption in ≤one time/week, two-four times/week, and ≥five times/week were 38.81%, 40.24%, and 20.95%, respectively. University students' psychological symptoms problem detection rate was 16.22%. The detection rate of psychological symptoms was lower among university male students (14.75%) than female students (17.35%), and the difference was statistically significant (χ2 = 9.525, p < 0.01). After adjusting for relevant covariates, students with soyfoods or soybean products consumption ≤one time/week (OR = 1.83, 95% CI:1.52, 2.21) had a higher risk of psychological symptoms compared to university students with soyfoods or soybean products consumption ≥five time/week (p < 0.01). During the COVID-19 pandemic, Chinese university students had lower consumption of soyfoods or soybean products and a higher detection rate of psychological symptoms. There was a negative association between soyfoods or soybean products consumption and psychological symptoms. Our study provides a scientific reference for the government and educational decision-making authorities and suggests that education on eating behavior and dietary guidance should be emphasized among university students in the future to maintain a reasonable consumption of soyfoods or soybean products for better physical and mental health development.
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Affiliation(s)
- Shengpeng Li
- School of Preschool Education, Jingzhou Institute of Technology, Jingzhou 434020, China
| | - Cong Liu
- Physical Education College, Jiangxi Normal University, Nanchang 330022, China
| | - Yongjing Song
- College of Education and Sports Sciences, Yangtze University, Jingzhou 434020, China
| | - Nan Ma
- College of Physical Education and Health, Shanghai Lixin University of Accounting and Finance, Shanghai 201209, China
| | - Jinkui Lu
- School of Physical Education, Shangrao Normal University, Shangrao 334000, China
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120
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Zhang S, Li F, Fu R, Li H, Zou S, Ma N, Qu S, Li J. A Versatile Continuum Gripping Robot with a Concealable Gripper. Cyborg Bionic Syst 2023; 4:0003. [PMID: 37040519 PMCID: PMC10076060 DOI: 10.34133/cbsystems.0003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Accepted: 11/02/2022] [Indexed: 03/05/2023] Open
Abstract
Continuum robots with their inherent compliance provide the potential for crossing narrow unstructured workspace and safely grasping various objects. However, the display gripper increases the size of the robots, and therefore, it tends to get stuck in constrained environments. This paper proposes a versatile continuum grasping robot (CGR) with a concealable gripper. The CGR can capture large objects with respect to the robot’s scale using the continuum manipulator and can grasp various objects using the end concealable gripper especially in narrow and unstructured workspaces. To perform the cooperative operation of the concealable gripper and the continuum manipulator, a global kinematic model based on screw theory and a motion planning approach referred to as “multi-node synergy method” for the CGR are presented. The simulation and experimental results show that objects of different shapes and sizes can be captured by the same CGR even in complex and narrow environments. Finally, in the future, the CGR is expected to serve for satellite capture in harsh space environments such as high vacuum, strong radiation, and extreme temperatures.
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Affiliation(s)
- Shuailong Zhang
- School of Mechatronical Engineering, Beijing Institute of Technology, Beijing 100081, China
- Beijing Advanced Innovation Center for Intelligent Robots and Systems, Beijing Institute of Technology, Beijing 100081, China
| | - Fenggang Li
- School of Mechatronical Engineering, Beijing Institute of Technology, Beijing 100081, China
- Beijing Advanced Innovation Center for Intelligent Robots and Systems, Beijing Institute of Technology, Beijing 100081, China
| | - Rongxin Fu
- School of Medical Technology, Beijing Institute of Technology, Beijing 100081, China
| | - Hang Li
- School of Medical Technology, Beijing Institute of Technology, Beijing 100081, China
| | - Suli Zou
- School of Automation, Beijing Institute of Technology, Beijing 100081, China
| | - Nan Ma
- Department of Mechanical, Materials, and Manufacturing Engineering, University of Nottingham, Nottingham, NG7 2QL, UK
| | - Shengyuan Qu
- School of Mechatronical Engineering, Beijing Institute of Technology, Beijing 100081, China
- Beijing Advanced Innovation Center for Intelligent Robots and Systems, Beijing Institute of Technology, Beijing 100081, China
| | - Jian Li
- School of Automation, Beijing Institute of Technology, Beijing 100081, China
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Niu T, Cui Y, Shan X, Qin S, Zhou X, Wang R, Chang A, Ma N, Jing J, He J. Comparative transcriptomic analysis-based identification of the regulation of foreign proteins with different stabilities expressed in Pichia pastoris. Front Microbiol 2022; 13:1074398. [PMID: 36620045 PMCID: PMC9814716 DOI: 10.3389/fmicb.2022.1074398] [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: 10/19/2022] [Accepted: 11/28/2022] [Indexed: 12/24/2022] Open
Abstract
Introduction The industrial yeast Pichia pastoris is widely used as a cell factory to produce proteins, chemicals and advanced biofuels. We have previously constructed P. pastoris strains that overexpress protein disulfide isomerase (PDI), which is a kind of molecular chaperone that can improve the expression of an exogenous protein when they are co-expressed. Chicken cystatin (cC) is a highly thermostable cysteine protease inhibitor and a homologous protein of human cystatin C (HCC). Wild-type cC and the two mutants, I66Q and ΔW (a truncated cC lacking the á-helix 2) represent proteins with different degrees of stability. Methods Wild-type cC, I66Q and ΔW were each overexpressed in P. pastoris without and with the coexpression of PDI and their extracellular levels were determined and compared. Transcriptomic profiling was performed to compare the changes in the main signaling pathways and cell components (other than endoplasmic reticulum quality control system represented by molecular chaperones) in P. pastoris in response to intracellular folding stress caused by the expression of exogenous proteins with different stabilities. Finally, hub genes hunting was also performed. Results and discussion The coexpression of PDI was able to increase the extracellular levels of both wild-type cC and the two mutants, indicating that overexpression of PDI could prevent the misfolding of unstable proteins or promote the degradation of the misfolded proteins to some extent. For P. pastoris cells that expressed the I66Q or ΔW mutant, GO (Gene Ontology) and KEGG (Kyoto Encyclopedia of Genes and Genomes) analyses of the common DEGs in these cells revealed a significant upregulation of the genes involved in protein processing, but a significant downregulation of the genes enriched in the Ribosome, TCA and Glycolysis/Gluconeogenesis pathways. Hub genes hunting indicated that the most downregulated ribosome protein, C4QXU7 in this case, might be an important target protein that could be manipulated to increase the expression of foreign proteins, especially proteins with a certain degree of instability. Conclusion These findings should shed new light on our understanding of the regulatory mechanism in yeast cells that responds to intracellular folding stress, providing valuable information for the development of a convenient platform that could improve the efficiency of heterologous protein expression in P. pastoris.
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Affiliation(s)
- Tingting Niu
- School of Life Sciences, Liaoning University, Shenyang, China
| | - Yi Cui
- School of Life Sciences, Liaoning University, Shenyang, China
| | - Xu Shan
- School of Life Sciences, Liaoning University, Shenyang, China
| | - Shuzhen Qin
- School of Life Sciences, Liaoning University, Shenyang, China
| | - Xuejie Zhou
- School of Life Sciences, Liaoning University, Shenyang, China
| | - Rui Wang
- School of Life Sciences, Liaoning University, Shenyang, China
| | - Alan Chang
- College of Life and Environmental Sciences, Wenzhou University, Wenzhou, China
| | - Nan Ma
- China Academy of Transportation Sciences, Beijing, China,Nan Ma,
| | - Jingjing Jing
- Tumor Etiology and Screening Department of Cancer Institute and General Surgery, The First Hospital of China Medical University, Shenyang, China,Jingjing Jing,
| | - Jianwei He
- School of Life Sciences, Liaoning University, Shenyang, China,*Correspondence: Jianwei He,
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Li L, Zhang H, Zheng Z, Ma N, Zhang Y, Liu Y, Zhang J, Su S, Zang W, Shao J, Cao J. Perioperative sleep deprivation activates the paraventricular thalamic nucleus resulting in persistent postoperative incisional pain in mice. Front Neuroanat 2022; 16:1074310. [PMID: 36620195 PMCID: PMC9813598 DOI: 10.3389/fnana.2022.1074310] [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: 10/19/2022] [Accepted: 12/07/2022] [Indexed: 12/24/2022] Open
Abstract
Background The duration of postsurgical pain is closely correlated with perioperative stress. Most patients suffer short-term sleep disorder/deprivation before and/or after surgery, which leads to extended postsurgical pain by an undetermined mechanism. The paraventricular thalamus (PVT) is a critical area that contributes to the regulation of feeding, awakening, and emotional states. However, whether the middle PVT is involved in postoperative pain or the extension of postoperative pain caused by perioperative sleep deprivation has not yet been investigated. Methods We established a model of postoperative pain by plantar incision with perioperative rapid eye movement sleep deprivation (REMSD) 6 h/day for 3 consecutive days in mice. The excitability of the CaMKIIα+ neurons in the middle PVT (mPVTCaMKIIα) was detected by immunofluorescence and fiber photometry. The activation/inhibition of mPVTCaMKIIα neurons was conducted by chemogenetics. Results REMSD prolonged the duration of postsurgical pain and increased the excitability of mPVTCaMKIIα neurons. In addition, mPVTCaMKIIα neurons showed increased excitability in response to nociceptive stimuli or painful conditions. However, REMSD did not delay postsurgical pain recovery following the ablation of CaMKIIα neurons in the mPVT. The activation of mPVTCaMKIIα neurons prolonged the duration of postsurgical pain and elicited anxiety-like behaviors. In contrast, inhibition of mPVTCaMKIIα neurons reduced the postsurgical pain after REMSD. Conclusion Our data revealed that the CaMKIIα neurons in the mPVT are involved in the extension of the postsurgical pain duration induced by REMSD, and represented a novel potential target to treat postoperative pain induced by REMSD.
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Affiliation(s)
- Lei Li
- Department of Anatomy, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, Henan, China
| | - Huijie Zhang
- Department of Anatomy, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, Henan, China
| | - Zhenli Zheng
- Department of Anatomy, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, Henan, China,Department of Medical Record Management, The First Affiliated Hospital of Xinxiang Medical University, Xinxiang, China
| | - Nan Ma
- Department of Anatomy, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, Henan, China
| | - Yidan Zhang
- Department of Anatomy, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, Henan, China
| | - Yaping Liu
- Department of Anatomy, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, Henan, China,Jiangsu Key Laboratory of Neuropsychiatric Diseases and Institute of Neuroscience, Soochow University, Suzhou, China
| | - Jingjing Zhang
- Department of Anatomy, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, Henan, China
| | - Songxue Su
- Department of Anatomy, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, Henan, China
| | - Weidong Zang
- Department of Anatomy, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, Henan, China,Neuroscience Research Institute, Zhengzhou University Academy of Medical Sciences, Zhengzhou, Henan, China
| | - Jinping Shao
- Department of Anatomy, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, Henan, China,Neuroscience Research Institute, Zhengzhou University Academy of Medical Sciences, Zhengzhou, Henan, China,*Correspondence: Jinping Shao,
| | - Jing Cao
- Department of Anatomy, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, Henan, China,Neuroscience Research Institute, Zhengzhou University Academy of Medical Sciences, Zhengzhou, Henan, China,Jing Cao,
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Jin X, Ma X, Zhao D, Yang L, Ma N. Immune microenvironment and therapeutic progress of recurrent hepatocellular carcinoma after liver transplantation. Transl Oncol 2022; 28:101603. [PMID: 36542991 PMCID: PMC9794975 DOI: 10.1016/j.tranon.2022.101603] [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: 10/24/2022] [Revised: 12/07/2022] [Accepted: 12/07/2022] [Indexed: 12/23/2022] Open
Abstract
HCC is a highly lethal tumor, and orthotopic liver transplantation, as one of the radical treatment methods for HCC, has opened-up a new therapeutic approach for the treatment of primary liver cancer. However, tumor recurrence after liver transplantation is the main reason that affects the long-term survival of recipients. At present, the application of ICIs has brought dawn to patients with refractory HCC. However, because of the special immune tolerance state created by long-term oral immunosuppressants in patients with HCC after liver transplantation, the current focus is how to regulate the immune balance of such patients and simultaneously maximize the anti-tumor effect. This article reviews the relationship between liver cancer and immunity, immune tolerance of liver transplantation, immune microenvironment after liver transplantation for HCC, and the application of immunotherapy in the recurrence of liver transplantation for HCC.
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Affiliation(s)
- Xin Jin
- Division of Liver Surgery and Organ Transplantation Center, Shenzhen Third People's Hospital, Second Affiliated Hospital of Southern University of Science and Technology, National Clinical Research Center for Infectious Disease, No.29 Bulan Road, Longgang District, Shenzhen, 518112, Guangdong Province, China
| | - Xiaoting Ma
- Department of Medical Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, No.17 Panjiayuan Nanli, Chaoyang District, Beijing, 100021, China
| | - Dong Zhao
- Division of Liver Surgery and Organ Transplantation Center, Shenzhen Third People's Hospital, Second Affiliated Hospital of Southern University of Science and Technology, National Clinical Research Center for Infectious Disease, No.29 Bulan Road, Longgang District, Shenzhen, 518112, Guangdong Province, China
| | - Lin Yang
- Department of Medical Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, No.17 Panjiayuan Nanli, Chaoyang District, Beijing, 100021, China,Corresponding authors.
| | - Nan Ma
- Division of Liver Surgery and Organ Transplantation Center, Shenzhen Third People's Hospital, Second Affiliated Hospital of Southern University of Science and Technology, National Clinical Research Center for Infectious Disease, No.29 Bulan Road, Longgang District, Shenzhen, 518112, Guangdong Province, China,Corresponding authors.
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Li K, Li Y, Wang Y, Li Y, He J, Li Y, Du L, Gao Y, Ma N, Gao J, Zhou X. Disruption of transcription factor RhMYB123 causes the transformation of stamen to malformed petal in rose (Rosa hybrida). Plant Cell Rep 2022; 41:2293-2303. [PMID: 35999377 DOI: 10.1007/s00299-022-02921-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Accepted: 07/25/2022] [Indexed: 06/15/2023]
Abstract
We find that the R2R3 MYB transcription factor RhMYB123 has a novel function to regulate stamen-petal organ specification in rose. Rose is one of the ornamental plants with economic importance worldwide. Malformed flower seriously affects the ornamental value and fertility of rose. However, the regulatory mechanism is largely unknown. In this work, we identified a R2R3 MYB transcription factor RhMYB123 from rose, the expression of which significantly decreased from flower differentiation stage to floral organ development stage. Phylogenetic analysis indicated that it belongs to the same subgroup as MYB123 of Arabidopsis and located in nucleus. In addition, RhMYB123 was confirmed to have transcriptional activation function by dual luciferase assay. Silencing RhMYB123 using Virus-Induced Gene Silencing (VIGS) in rose could increase the number of malformed petaloid stamen. Furthermore, we identified 549 differential expressed genes (DEGs) in TRV-RhMYB123 lines compared to TRV controls by RNA-seq of floral buds (flower differentiation stage). Among of those genes, expression of 3 MADS box family genes related to floral organ development reduced in TRV-RhMYB123 lines, including AGAMOUS (RhAG), AGAMOUS LIKE 15 (RhAGL15), and SHATTERPROOF 1 (RhSHP1). Given, previous studies have shown that auxin plays a crucial role in floral meristem initiation and stamen-petal organ specification. We also found 6 DEGs were involved in auxin signal transduction, of which five were reduced expression in TRV-RhMYB123. Taken together, our findings suggested that RhMYB123 may govern the development of malformed petaloid stamen by regulating the expressions of some MADS box family members and auxin signaling pathway elements.
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Affiliation(s)
- Kun Li
- Beijing Key Laboratory of Development and Quality Control of Ornamental Crops, Department of Ornamental Horticulture, China Agricultural University, Beijing, China
| | - Yuqi Li
- Beijing Key Laboratory of Development and Quality Control of Ornamental Crops, Department of Ornamental Horticulture, China Agricultural University, Beijing, China
| | - Yi Wang
- Beijing Key Laboratory of Development and Quality Control of Ornamental Crops, Department of Ornamental Horticulture, China Agricultural University, Beijing, China
| | - Yonghong Li
- School of Applied Chemistry and Biotechnology, Shenzhen Polytechnic, Shenzhen, China
| | - Junna He
- Beijing Key Laboratory of Development and Quality Control of Ornamental Crops, Department of Ornamental Horticulture, China Agricultural University, Beijing, China
| | - Yunju Li
- Yunnan Yuntianhua Modern Agriculture Development Co., Ltd, Kunming, China
| | - Lisi Du
- Yunnan Yuntianhua Modern Agriculture Development Co., Ltd, Kunming, China
| | - Yuerong Gao
- College of Plant Science and Technology, Beijing University of Agriculture, Beijing, China
| | - Nan Ma
- Beijing Key Laboratory of Development and Quality Control of Ornamental Crops, Department of Ornamental Horticulture, China Agricultural University, Beijing, China
| | - Junping Gao
- Beijing Key Laboratory of Development and Quality Control of Ornamental Crops, Department of Ornamental Horticulture, China Agricultural University, Beijing, China
| | - Xiaofeng Zhou
- Beijing Key Laboratory of Development and Quality Control of Ornamental Crops, Department of Ornamental Horticulture, China Agricultural University, Beijing, China.
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Ma N, Yuan C, Shi J, Zhu Q, Liu Y, Ma X, Li B, Gong W, Xue J, Lu G, Li W, Li J. Interleukin-37 protects against acinar cell pyroptosis in acute pancreatitis. JCI Insight 2022; 7:161244. [PMID: 36166295 PMCID: PMC9675483 DOI: 10.1172/jci.insight.161244] [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: 04/22/2022] [Accepted: 09/21/2022] [Indexed: 12/15/2022] Open
Abstract
Acute pancreatitis (AP) is a local and/or systemic inflammatory disease that starts with acinar cell injury and necrosis; it has no effective medical treatment and thus remains a life-threatening condition. Interleukin-37 (IL-37), a natural immunomodulator, has demonstrated an antiinflammatory effect; however, the role of IL-37 in AP remains unknown. The serum IL-37 levels of 39 healthy controls and 94 patients with AP were measured. Cholecystokinin was applied to induce pancreatic acinar cell injury in vitro. Classical experimental AP models, such as caerulein, l-arginine, and taurolithocholic acid 3-sulfate disodium salt, were included in the in vivo study. A transgenic mouse model with the IL-37 gene and administration of recombinant IL-37 were used to further investigate the function of IL-37 in AP. Pancreas-specific gasdermin D-knockout (GSDMD-knockout) mice were used to explore the protective mechanism of IL-37. Our results showed that serum IL-37 levels in humans were negatively correlated with the severity of AP. Furthermore, IL-37-transgenic mice and supplementation with recombinant IL-37 could both protect against AP. Mechanistically, IL-37 was able to suppress pyroptosis of injured acinar cells, and specific depletion of GSDMD in the pancreas counteracted the protective effect of IL-37. Our study demonstrates that IL-37 protects against acinar cell pyroptosis in AP.
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Affiliation(s)
- Nan Ma
- Department of Critical Care Medicine, Research Institute of General Surgery, Affiliated Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Chenchen Yuan
- Pancreatic Center, Department of Gastroenterology, and,Yangzhou Key Laboratory of Pancreatic Disease, Institute of Digestive Diseases, The Affiliated Hospital of Yangzhou University, Yangzhou University, Yangzhou, China
| | - Juanjuan Shi
- State Key Laboratory of Oncogenes and Related Genes, Stem Cell Research Centre, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Qingtian Zhu
- Pancreatic Center, Department of Gastroenterology, and,Yangzhou Key Laboratory of Pancreatic Disease, Institute of Digestive Diseases, The Affiliated Hospital of Yangzhou University, Yangzhou University, Yangzhou, China
| | - Yang Liu
- Department of Critical Care Medicine, Jinling Hospital, Medical School of Southeast University, Nanjing, China
| | - Xiaojie Ma
- Department of Critical Care Medicine, Research Institute of General Surgery, Affiliated Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Baiqiang Li
- Department of Critical Care Medicine, Research Institute of General Surgery, Affiliated Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Weijuan Gong
- Pancreatic Center, Department of Gastroenterology, and,Yangzhou Key Laboratory of Pancreatic Disease, Institute of Digestive Diseases, The Affiliated Hospital of Yangzhou University, Yangzhou University, Yangzhou, China
| | - Jing Xue
- State Key Laboratory of Oncogenes and Related Genes, Stem Cell Research Centre, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Guotao Lu
- Pancreatic Center, Department of Gastroenterology, and,Yangzhou Key Laboratory of Pancreatic Disease, Institute of Digestive Diseases, The Affiliated Hospital of Yangzhou University, Yangzhou University, Yangzhou, China
| | - Weiqin Li
- Department of Critical Care Medicine, Research Institute of General Surgery, Affiliated Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Jieshou Li
- Department of Critical Care Medicine, Research Institute of General Surgery, Affiliated Jinling Hospital, Medical School of Nanjing University, Nanjing, China
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Wang Y, Yang T, Li Y, Hou J, He J, Ma N, Zhou X. Genome-wide identification and expression analysis of MIKC C genes in rose provide insight into their effects on flower development. Front Plant Sci 2022; 13:1059925. [PMID: 36407632 PMCID: PMC9666904 DOI: 10.3389/fpls.2022.1059925] [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] [Subscribe] [Scholar Register] [Received: 10/02/2022] [Accepted: 10/17/2022] [Indexed: 06/16/2023]
Abstract
The MIKCC-type gene family plays important roles in plant growth, development, and tolerance of biotic and abiotic stress, especially during floral organ differentiation. However, there have been no studies of MIKCC-type genes in rose, and functional differentiation of family members has not been explored. In this study, we identified 42 MIKCC-type genes in rose, classified the genes into 12 subfamilies, and constructed a phylogenetic tree. We performed expression analysis of these genes, and found that expression patterns correlated with the predicted subfamily, indicating that the features of MIKCC-type genes were broadly conserved during evolution. Collinear analysis of MIKCC genes among Rosaceae species confirmed the occurrence of whole genome duplications (WGD) and revealed some species-specific MIKCC genes. Transcriptome analysis showed that the expression of some MIKCC-type genes responded to low temperatures (4°C, 24 h) during flower organ differentiation. These conserved, duplicated, and novel expression patterns of MIKCC-type genes may have facilitated the adaptation of rose to various internal and external environmental changes. The results of this study provide a theoretical basis for future functional analysis of the MIKCC genes in rose and investigation of the evolutionary pattern of the MIKCC gene family in the Rosaceae genome.
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Liu J, Xu Y, Lin X, Ma N, Zhu Q, Yang K, Li X, Liu C, Feng N, Zhao Y, Li X, Zhang W. Immobilization of poly-L-lysine brush via surface initiated polymerization for the development of long-term antibacterial coating for silicone catheter. Colloids Surf B Biointerfaces 2022; 221:113015. [DOI: 10.1016/j.colsurfb.2022.113015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2022] [Revised: 11/06/2022] [Accepted: 11/08/2022] [Indexed: 11/13/2022]
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Chen X, Liu C, Hua Z, Ma N. Ferroelectric Polarization and Oxygen Vacancy Synergistically Induced an Ultrasensitive and Fast Humidity Sensor for Multifunctional Applications. ACS Appl Mater Interfaces 2022; 14:49965-49974. [PMID: 36285769 DOI: 10.1021/acsami.2c14332] [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: 06/16/2023]
Abstract
With the arrival of the Internet of Things and artificial intelligence, humidity sensors monitoring water emissions from human metabolism have attracted great attention in the fields of smart wearable devices and noncontact human-machine interaction. However, their application is seriously limited by the trade-off between the sensitivity and response speed for traditional humidity sensors. Herein, to overcome it, a self-powered high performance humidity sensor is developed on the basis of the electric-poled and oxygen vacancy-rich BiFeO3 (BFO) ferroelectric material. The synergistic effect of ferroelectric polarization and oxygen vacancy provides a strong driving force and active adsorption sites for an abundance of OH/H2O adsorption, resulting in an ultrahigh response (∼104) and ultrafast response/recovery speed (∼84/376 ms). Benefiting from its promising advantages, the wearable humidity sensor can accurately record the respiration rate/depth and recognize different human respiratory behaviors in real-time. Importantly, by utilizing the moisture from mouth-blowing and skin, the sensors are successfully applied to noncontact control of a robotic car, noncontact switch, and noncontact interface for visualization applications. This work provides an effective strategy for developing excellent humidity sensors that meet the requirement of noncontact interaction for next-generation intelligent electronics.
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Affiliation(s)
- Xinyi Chen
- CAS Key Laboratory of Inorganic Functional Materials and Devices, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai201899, China
- Tianjin Key Laboratory of Electronic Materials and Devices, School of Electronics and Information Engineering, Hebei University of Technology, Tianjin300401, China
| | - Cheng Liu
- School of Naval Architecture Ocean and Civil Engineering, Shanghai Jiao Tong University, Shanghai200240, China
| | - Zhongqiu Hua
- Electronic College, Peking University, Beijing100871, China
| | - Nan Ma
- CAS Key Laboratory of Inorganic Functional Materials and Devices, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai201899, China
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Ma N, Zhao X, Liang X, Zhu W, Sun Y, Zhao W, Zeng XC. Continuous and First-Order Liquid–Solid Phase Transitions in Two-Dimensional Water. J Phys Chem B 2022; 126:8892-8899. [DOI: 10.1021/acs.jpcb.2c05618] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Nan Ma
- Department of Physics, Ningbo University, Ningbo, Zhejiang 315211, China
| | - Xiaorong Zhao
- Department of Physics, Ningbo University, Ningbo, Zhejiang 315211, China
| | - Xiaoying Liang
- Department of Physics, Ningbo University, Ningbo, Zhejiang 315211, China
| | - Weiduo Zhu
- Department of Physics, Hefei University of Technology, Hefei, Anhui 230009, China
| | - Yunxiang Sun
- Department of Physics, Ningbo University, Ningbo, Zhejiang 315211, China
| | - Wenhui Zhao
- Department of Physics, Ningbo University, Ningbo, Zhejiang 315211, China
| | - Xiao Cheng Zeng
- Department of Materials Science & Engineering, City University of Hong Kong, Kowloon 999077, Hong Kong, China
- Department of Chemistry, University of Nebraska─Lincoln, Lincoln, Nebraska 68588, United States
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Yin D, Pang B, Li H, Liu Q, Zhai Y, Ma N, Chen T, Shen H, Jia Q, Wang D. The complete chloroplast genome of the medical plant Huperzia crispata from the Huperziaceae family: structure, comparative analysis, and phylogenetic relationships. Mol Biol Rep 2022; 49:11729-11741. [PMID: 36197623 DOI: 10.1007/s11033-022-07979-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [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: 07/16/2022] [Accepted: 09/21/2022] [Indexed: 10/10/2022]
Abstract
BACKGROUND Huperzia crispata, belonging to the Huperziaceae family, is one of the most essential resources of huperzine A for candidate drugs to treat Alzheimer's diseases. However, there is very limited information about H. crispat, and its taxonomic status and interspecific relationships between Huperzia species are still unclear. To investigate the taxonomic classification of Huperzia species and identify species discrimination markers, the complete chloroplast (cp) genome of H. crispata was sequenced and characterized for the first time. METHODS AND RESULTS Total genomic DNA was isolated and sequenced using the next-generation Illumina NovaSeq 6000 platform. The data were filtered, assembled and annotated by a series software and web service. The results were as follows: the cp genome of H. crispata was 154,320 bp long with a large single-copy (LSC) region of 104,023 bp, a small single-copy (SSC) region of 19,671 bp, and a pair of inverted repeat (IRa and IRb) regions of 15,313 bp. A total of 131 genes, including 87 protein-coding genes, 36 transfer RNA genes (tRNAs), and eight ribosome RNA genes (rRNAs), were annotated in the cp genome. The contraction and expansion of the inverted repeat (IR) regions were relatively conserved in the Huperzia genus. Codon usage bias analysis showed that the encoding rate at the 3-end of codon A/T (74.34%) was significantly higher than that of C/G (25.66%). A total of 8 hotspot loci with high Pi values (> 0.06) were identified in the four Huperzia species based on nucleic acid diversity analysis. Ka/Ks selective pressure analysis demonstrated that the cemA gene is the most common gene undergoing positive selection among Huperzia. In addition, a total of 261 simple sequence repeats and 179 interspersed repeats were identified in the cp genome. Phylogenetic tree analysis based on the complete protein sequences of 23 related species of H. crispata indicated that H. serrata f. longipetiolata is a sister of H. crispata, suggesting that H. serrata f. longipetiolata and H. crispata are more closely related than H. serrata and H. lucidula. CONCLUSIONS The results strongly supported that H. crispata was more closely related to H. serrata f. longipetiolata than to H. serrata and H. lucidula within the Huperzia genus. The outcome provided important information for the phylogenetic analysis of the subsequent specific molecular species identification in Huperzia. The present results will provide valuable information for further research into the classification, phylogeny and species identification of Huperzia plants.
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Affiliation(s)
- Dengpan Yin
- Key Laboratory of Plant Secondary Metabolism Regulation in Zhejiang Province, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou, 310018, Zhejiang, China
| | - Bo Pang
- Key Laboratory of Plant Secondary Metabolism Regulation in Zhejiang Province, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou, 310018, Zhejiang, China
| | - Haibo Li
- Yuyao Seedling Management Station, Ningbo, 315400, Zhejiang, China
| | - Qiao Liu
- Key Laboratory of Plant Secondary Metabolism Regulation in Zhejiang Province, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou, 310018, Zhejiang, China
| | - Yufeng Zhai
- Key Laboratory of Plant Secondary Metabolism Regulation in Zhejiang Province, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou, 310018, Zhejiang, China
| | - Nan Ma
- Key Laboratory of Plant Secondary Metabolism Regulation in Zhejiang Province, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou, 310018, Zhejiang, China
| | - Tongtong Chen
- Key Laboratory of Plant Secondary Metabolism Regulation in Zhejiang Province, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou, 310018, Zhejiang, China
| | - Hongjun Shen
- Ningbo Delai Medicinal Material Planting Co., Ltd, Ningbo, 315444, Zhejiang, China
| | - Qiaojun Jia
- Key Laboratory of Plant Secondary Metabolism Regulation in Zhejiang Province, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou, 310018, Zhejiang, China
| | - Dekai Wang
- Key Laboratory of Plant Secondary Metabolism Regulation in Zhejiang Province, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou, 310018, Zhejiang, China.
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Tang XY, Xiong YL, Zhao YB, Yang J, Shi AP, Zheng KF, Liu YJ, Shu C, Jiang T, Ma N, Zhao JB. Dual immunological and proliferative regulation of immune checkpoint FGL1 in lung adenocarcinoma: The pivotal role of the YY1–FGL1–MYH9 axis. Front Immunol 2022; 13:1014053. [PMID: 36268014 PMCID: PMC9577086 DOI: 10.3389/fimmu.2022.1014053] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Accepted: 09/21/2022] [Indexed: 11/24/2022] Open
Abstract
Rational Lung cancer is the most common tumor worldwide, with the highest mortality rate and second highest incidence. Immunotherapy is one of the most important treatments for lung adenocarcinoma (LUAD); however, it has relatively low response rate and high incidence of adverse events. Herein, we explored the therapeutic potential of fibrinogen-like protein 1 (FGL1) for LUAD. Methods Data from GEPIA and ACLBI databases were assessed to explore gene–gene correlations and tumor immune infiltration patterns. A total of 200 patients with LUAD were recruited. FGL1 levels in the serum and cellular supernatant were determined by enzyme-linked immunosorbent assay. In vitro and in vivo experiments were performed to assess the effect FGL1 on the proliferation of LUAD cells. Cocultures were performed to explore the effect of FGL1 knockdown in lung cancer cells on T cells, concerning cytokine secretion and viability. PROMO and hTFtarget databases were used for transcription factor prediction. Quantitative polymerase chain reaction (qPCR), chromatin immunoprecipitation, and dual luciferase reporter assays were performed to validate the identified transcription factor of FGL1. Immunoprecipitation, mass spectrometry and gene ontology analysis were performed to explore the downstream partners of FGL1. Results FGL1 expression in LUAD was positively associated with PDL1, but not for PD1 expression. Moreover, FGL1 was positively associated with the CD3D expression and negatively associated with FOXP3, S100A9, and TPSB2 within the tumor site. FGL1 promotes the secretion of interleukin-2 by T cells in vitro, simultaneously inducing their apoptosis. Indeed, YY1 is the upstream molecule of FGL1 was found to be transcriptionally regulated by YY1 and to directly by to MYH9 to promote the proliferation of LUAD cells in vitro and in vivo. Conclusions FGL1 is involved in the immunological and proliferative regulation of LUAD cells by controlling the secretion of important immune-related cytokines via the YY1–FGL1–MYH9 axis. Hence, targeting FGL1 in LUAD may pave the way for the development of new immunotherapies for tackling this malignancy.
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Affiliation(s)
- Xi-Yang Tang
- Department of Thoracic Surgery, Tangdu Hospital, Air Force Medical University, Xi’an, China
| | - Yan-Lu Xiong
- Department of Thoracic Surgery, Tangdu Hospital, Air Force Medical University, Xi’an, China
| | - Ya-Bo Zhao
- Department of Thoracic Surgery, Tangdu Hospital, Air Force Medical University, Xi’an, China
| | - Jie Yang
- Department of Thoracic Surgery, Tangdu Hospital, Air Force Medical University, Xi’an, China
| | - An-Ping Shi
- Department of Radiology, Functional and Molecular Imaging Key Lab of Shaanxi Province, Tangdu Hospital, Fourth Military Medical University (Air Force Medical University), Xi’an, China
| | - Kai-Fu Zheng
- Department of Thoracic Surgery, Tangdu Hospital, Air Force Medical University, Xi’an, China
| | - Yu-Jian Liu
- Department of Thoracic Surgery, Tangdu Hospital, Air Force Medical University, Xi’an, China
| | - Chen Shu
- Department of Thoracic Surgery, Tangdu Hospital, Air Force Medical University, Xi’an, China
| | - Tao Jiang
- Department of Thoracic Surgery, Tangdu Hospital, Air Force Medical University, Xi’an, China
- *Correspondence: Jin-Bo Zhao, ; Nan Ma, ; Tao Jiang,
| | - Nan Ma
- Department of Ophthalmology, Tangdu Hospital, Air Force Medical University, Xi’an, China
- *Correspondence: Jin-Bo Zhao, ; Nan Ma, ; Tao Jiang,
| | - Jin-Bo Zhao
- Department of Thoracic Surgery, Tangdu Hospital, Air Force Medical University, Xi’an, China
- *Correspondence: Jin-Bo Zhao, ; Nan Ma, ; Tao Jiang,
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132
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Yang JX, Ma N, Chen GY, Li X, Liu N, Tang RB, Jia CQ, Feng L. [Multifocal ectopic Purkinje-related premature contractions associated with SCN5A mutation: a case report]. Zhonghua Xin Xue Guan Bing Za Zhi 2022; 50:923-925. [PMID: 36096712 DOI: 10.3760/cma.j.cn112148-20220711-00539] [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] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Affiliation(s)
- J X Yang
- Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China
| | - N Ma
- Department of Medical Ultrasonics, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China
| | - G Y Chen
- Department of Cardiology, Suihua First Hospital, Suihua 152001, China
| | - X Li
- Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China
| | - N Liu
- Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China
| | - R B Tang
- Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China
| | - C Q Jia
- Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China
| | - L Feng
- Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China
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133
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Zhong H, Lin W, Liu H, Ma N, Liu K, Cao R, Wang T, Ren Z. Identification of tree species based on the fusion of UAV hyperspectral image and LiDAR data in a coniferous and broad-leaved mixed forest in Northeast China. Front Plant Sci 2022; 13:964769. [PMID: 36212338 PMCID: PMC9539217 DOI: 10.3389/fpls.2022.964769] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Accepted: 09/01/2022] [Indexed: 06/16/2023]
Abstract
Rapid and accurate identification of tree species via remote sensing technology has become one of the important means for forest inventory. This paper is to develop an accurate tree species identification framework that integrates unmanned airborne vehicle (UAV)-based hyperspectral image and light detection and ranging (LiDAR) data under the complex condition of natural coniferous and broad-leaved mixed forests. First, the UAV-based hyperspectral image and LiDAR data were obtained from a natural coniferous and broad-leaved mixed forest in the Maoer Mountain area of Northeast China. The preprocessed LiDAR data was segmented using a distance-based point cloud clustering algorithm to obtain the point cloud of individual trees; the hyperspectral image was segmented using the projection outlines of individual tree point clouds to obtain the hyperspectral data of individual trees. Then, different hyperspectral and LiDAR features were extracted, respectively, and the importance of the features was analyzed by a random forest (RF) algorithm in order to select appropriate features for the single-source and multi-source data. Finally, tree species identification in the study area were conducted by using a support vector machine (SVM) algorithm together with hyperspectral features, LiDAR features and fused features, respectively. Results showed that the total accuracy for individual tree segmentation was 84.62%, and the fused features achieved the best accuracy for identification of the tree species (total accuracy = 89.20%), followed by the hyperspectral features (total accuracy = 86.08%) and LiDAR features (total accuracy = 76.42%). The optimal features for tree species identification based on fusion of the hyperspectral and LiDAR data included the vegetation indices that were sensitive to the chlorophyll, anthocyanin and carotene contents in the leaves, the partial components of the transformed independent component analysis (ICA), minimum noise fraction (MNF) and principal component analysis (PCA), and the intensity features of the LiDAR echo, respectively. It was concluded that the framework developed in this study was effective in tree species identification under the complex conditions of natural coniferous and broad-leaved mixed forest and the fusion of UAV-based hyperspectral image and LiDAR data can achieve enhanced accuracy compared the single-source UAV-based remote sensing data.
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Affiliation(s)
- Hao Zhong
- College of Engineering and Technology, Northeast Forestry University, Harbin, China
| | - Wenshu Lin
- College of Engineering and Technology, Northeast Forestry University, Harbin, China
| | - Haoran Liu
- College of Engineering and Technology, Northeast Forestry University, Harbin, China
| | - Nan Ma
- College of Engineering and Technology, Northeast Forestry University, Harbin, China
| | - Kangkang Liu
- College of Engineering and Technology, Northeast Forestry University, Harbin, China
| | - Rongzhen Cao
- College of Engineering and Technology, Northeast Forestry University, Harbin, China
| | - Tiantian Wang
- Beijing Institute of Surveying and Mapping, Beijing, China
| | - Zhengzhao Ren
- Beijing Institute of Surveying and Mapping, Beijing, China
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Cheng K, Qi J, Ren X, Zhang J, Li H, Xiao H, Wang R, Liu Z, Meng L, Ma N, Sun H. Developing Isoxazole as a Native Photo‐Cross‐Linker for Photoaffinity Labeling and Chemoproteomics. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202209947] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Ke Cheng
- City University of Hong Kong Department of Chemistry Tat Chee Avenue HONG KONG
| | - Junyang Qi
- Sun Yat-sen University - Shenzhen Campus School of Pharmaceutical Sciences 518107 Shenzhen CHINA
| | - Xiaojie Ren
- City University of Hong Kong Department of Chemistry Tat Chee Avenue HONG KONG
| | - Jie Zhang
- City University of Hong Kong Department of Chemistry Tat Chee Avenue HONG KONG
| | - Huangxu Li
- City University of Hong Kong Department of Chemistry Tat Chee Avenue HONG KONG
| | - Hanyue Xiao
- City University of Hong Kong Department of Chemistry Tat Chee Avenue HONG KONG
| | - Rui Wang
- Shenzhen Bay Laboratory Pingshan Translational Medicine Centre Shenzhen CHINA
| | - Zhiyang Liu
- City University of Hong Kong Department of Chemistry Tat Chee Avenue HONG KONG
| | - Lingkuan Meng
- City University of Hong Kong Department of Chemistry Tat Chee Avenue HONG KONG
| | - Nan Ma
- Jinan University Centre for Bioactive Natural Molecules and Innovative Drugs Research, College of Pharmacy 510632 Guangzhou CHINA
| | - Hongyan Sun
- City University of Hong Kong Department of Chemistry Tat Chee Avenue NA Hong Kong HONG KONG
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Cheng K, Qi J, Ren X, Zhang J, Li H, Xiao H, Wang R, Liu Z, Meng L, Ma N, Sun H. Developing Isoxazole as a Native Photo‐Cross‐Linker for Photoaffinity Labeling and Chemoproteomics. Angew Chem Int Ed Engl 2022; 61:e202209947. [DOI: 10.1002/anie.202209947] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Indexed: 11/11/2022]
Affiliation(s)
- Ke Cheng
- City University of Hong Kong Department of Chemistry Tat Chee Avenue HONG KONG
| | - Junyang Qi
- Sun Yat-sen University - Shenzhen Campus School of Pharmaceutical Sciences 518107 Shenzhen CHINA
| | - Xiaojie Ren
- City University of Hong Kong Department of Chemistry Tat Chee Avenue HONG KONG
| | - Jie Zhang
- City University of Hong Kong Department of Chemistry Tat Chee Avenue HONG KONG
| | - Huangxu Li
- City University of Hong Kong Department of Chemistry Tat Chee Avenue HONG KONG
| | - Hanyue Xiao
- City University of Hong Kong Department of Chemistry Tat Chee Avenue HONG KONG
| | - Rui Wang
- Shenzhen Bay Laboratory Pingshan Translational Medicine Centre Shenzhen CHINA
| | - Zhiyang Liu
- City University of Hong Kong Department of Chemistry Tat Chee Avenue HONG KONG
| | - Lingkuan Meng
- City University of Hong Kong Department of Chemistry Tat Chee Avenue HONG KONG
| | - Nan Ma
- Jinan University Centre for Bioactive Natural Molecules and Innovative Drugs Research, College of Pharmacy 510632 Guangzhou CHINA
| | - Hongyan Sun
- City University of Hong Kong Department of Chemistry Tat Chee Avenue NA Hong Kong HONG KONG
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Li M, Su H, Zheng G, Kuhn U, Kim N, Li G, Ma N, Pöschl U, Cheng Y. Aerosol pH and Ion Activities of HSO 4- and SO 42- in Supersaturated Single Droplets. Environ Sci Technol 2022; 56:12863-12872. [PMID: 36047919 PMCID: PMC9494740 DOI: 10.1021/acs.est.2c01378] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Revised: 08/23/2022] [Accepted: 08/25/2022] [Indexed: 06/15/2023]
Abstract
Accurate determination of acidity (pH) and ion activities in aqueous droplets is a major experimental and theoretical challenge for understanding and simulating atmospheric multiphase chemistry. Here, we develop a ratiometric Raman spectroscopy method to measure the equilibrium concentration of sulfate (SO42-) and bisulfate (HSO4-) in single microdroplets levitated by aerosol optical tweezers. This approach enables determination of ion activities and pH in aqueous sodium bisulfate droplets under highly supersaturated conditions. The experimental results were compared against aerosol thermodynamic model calculations in terms of simulating aerosol ion concentrations, ion activity coefficients, and pH. We found that the Extended Aerosol Inorganics Model (E-AIM) can well reproduce the experimental results. The alternative model ISORROPIA, however, exhibits substantial deviations in SO42- and HSO4- concentrations and up to a full unit of aerosol pH under acidic conditions, mainly due to discrepancies in simulating ion activity coefficients of SO42--HSO4- equilibrium. Globally, this may cause an average deviation of ISORROPIA from E-AIM by 25 and 65% in predicting SO42- and HSO4- concentrations, respectively. Our results show that it is important to determine aerosol pH and ion activities in the investigation of sulfate formation and related aqueous phase chemistry.
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Affiliation(s)
- Meng Li
- Minerva
Research Group, Max Planck Institute for
Chemistry, 55128 Mainz, Germany
| | - Hang Su
- Multiphase
Chemistry Department, Max Planck Institute
for Chemistry, 55128 Mainz, Germany
| | - Guangjie Zheng
- Minerva
Research Group, Max Planck Institute for
Chemistry, 55128 Mainz, Germany
| | - Uwe Kuhn
- Multiphase
Chemistry Department, Max Planck Institute
for Chemistry, 55128 Mainz, Germany
| | - Najin Kim
- Multiphase
Chemistry Department, Max Planck Institute
for Chemistry, 55128 Mainz, Germany
| | - Guo Li
- Minerva
Research Group, Max Planck Institute for
Chemistry, 55128 Mainz, Germany
| | - Nan Ma
- Minerva
Research Group, Max Planck Institute for
Chemistry, 55128 Mainz, Germany
- Institute
for Environmental and Climate Research, Jinan University, Guangzhou 511443, China
| | - Ulrich Pöschl
- Multiphase
Chemistry Department, Max Planck Institute
for Chemistry, 55128 Mainz, Germany
| | - Yafang Cheng
- Minerva
Research Group, Max Planck Institute for
Chemistry, 55128 Mainz, Germany
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137
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Chen W, Ma Z, Yu L, Mao X, Ma N, Guo X, Yin X, Jiang F, Wang Q, Wang J, Fang M, Lin N, Zhang Y. Preclinical investigation of artesunate as a therapeutic agent for hepatocellular carcinoma via impairment of glucosylceramidase-mediated autophagic degradation. Exp Mol Med 2022; 54:1536-1548. [PMID: 36123535 PMCID: PMC9535011 DOI: 10.1038/s12276-022-00780-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Revised: 03/10/2022] [Accepted: 03/29/2022] [Indexed: 12/09/2022]
Abstract
Artesunate (ART) has been indicated as a candidate drug for hepatocellular carcinoma (HCC). Glucosylceramidase (GBA) is required for autophagic degradation. Whether ART regulates autophagic flux by targeting GBA in HCC remains to be defined. Herein, our data demonstrated that the dramatic overexpression of GBA was significantly associated with aggressive progression and short overall survival times in HCC. Subsequent experiments revealed an association between autophagic activity and GBA expression in clinical HCC samples, tumor tissues from a rat model of inflammation-induced HCC and an orthotopic mouse model, and human HCC cell lines. Interestingly, probe labeling identified GBA as an ART target, which was further verified by both a glutathione-S-transferase pulldown assay and surface plasmon resonance analysis. The elevated protein expression of LC3B, the increased numbers of GFP-LC3B puncta and double-membrane vacuoles, and the enhanced expression of SQSTM1/p62 indicated that the degradation of autophagosomes in HCC cells was inhibited by ART treatment. Both the in vitro and in vivo data revealed that autophagosome accumulation through targeting of GBA was responsible for the anti-HCC effects of ART. In summary, this preclinical study identified GBA as one of the direct targets of ART, which may have promising potential to inhibit lysosomal autophagy for HCC therapy. Confirmation that the malaria drug artesunate targets a key enzyme overexpressed in aggressive liver cancer suggests it may be a novel therapeutic option for the disease. High levels of an enzyme called glucosylceramidase (GBA) are associated with poor prognosis in liver cancer, according to research conducted by Yanqiong Zhang and Na Lin at the Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, and co-workers. In experiments on rat and mouse models and human cell lines, the team demonstrated that high GBA levels over activated autophagic flux, accelerated the rate at which cellular material may be degraded and recycled in balanced, healthy cells. This disturbance enables liver cancer to progress. The researchers found that artesunate can suppress GBA expression levels and restore normal autophagic flux, boosting the drug’s anticancer activity.
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Affiliation(s)
- Wenjia Chen
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Zhaochen Ma
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Lingxiang Yu
- The Fifth Medical Centre, Chinese PLA General Hospital, Beijing, 100039, China
| | - Xia Mao
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Nan Ma
- Artemisinin Research Center, China Academy of Chinese Medical Sciences, 100700, Beijing, China
| | - Xiaodong Guo
- The Fifth Medical Centre, Chinese PLA General Hospital, Beijing, 100039, China
| | - Xiaoli Yin
- College of Life Science, South China Normal University, Guangzhou, 510631, China
| | - Funeng Jiang
- Guangdong Key Laboratory of Clinical Molecular Medicine and Diagnostics, South China University of Technology, Guangzhou, 510631, China
| | - Qian Wang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, 100191, China
| | - Jigang Wang
- Artemisinin Research Center, China Academy of Chinese Medical Sciences, 100700, Beijing, China
| | - Mingliang Fang
- Nanyang Technology University of Singapore, APT11-04, Singapore, Singapore
| | - Na Lin
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China.
| | - Yanqiong Zhang
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China.
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138
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Ma N, Sun LX, Kang X, Wang L. [Joinpoint regression analysis of the incidence trend of syphilis and gonorrhea among adolescents aged 10-19 in Liaoning Province from 2006 to 2020]. Zhonghua Yu Fang Yi Xue Za Zhi 2022; 56:1323-1326. [PMID: 36207898 DOI: 10.3760/cma.j.cn112150-20211127-01091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Joinpoint regression was used to analyze the trend of syphilis and gonorrhea incidence rate among 10-19 year old adolescents in Liaoning Province from 2006 to 2020. The syphilis and gonorrhea data in Liaoning Province were reported in the infectious disease monitoring system of China's disease prevention and control information system. From 2006 to 2020, a total of 7 721 cases of syphilis in 10-19 year old adolescents were reported in Liaoning Province, with an incidence rate about 0.90/100 000-22.13/100 000. The incidence rate of syphilis in women was higher than that in men. Adolescents infected with stage Ⅰ and stageⅡ syphilis accounted for 72.6%. There were 2 726 patients with gonorrhea, with an incidence rate about 1.29/100 000-10.74/100 000. The incidence rate of gonorrhea in men was higher than that in women. Joinpoint regression model analysis showed that the incidence of syphilis generally took 2012 as the inflection point. From 2006 to 2012, the average annual growth rate of syphilis incidence rate among adolescents was 67.30% (P<0.001). The average annual growth rate of syphilis incidence rate in adolescents from 2012 to 2020 was -0.02% (P=0.994).The overall incidence of gonorrhea incidence rate took 2015 as the inflection point. From 2006 to 2015, the average annual growth rate of juvenile gonorrhea incidence rate was 23.95% (P<0.001). The average annual growth rate of gonorrhea incidence rate in adolescents from 2015 to 2020 was 4.06% (P=0.492). Overall, from 2006 to 2020, the incidence rate of syphilis and gonorrhea among 10-19 year old adolescents in Liaoning Province increased slowly. The primary and secondary prevention strategies were significantly effective in reducing the risk of sexually transmitted diseases.
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Affiliation(s)
- N Ma
- Institute of AIDS and Sexually Transmitted Diseases Control and Prevention,Liaoning Provincial Center for Disease Control and Prevention, Shenyang 110005, China
| | - L X Sun
- Institute of AIDS and Sexually Transmitted Diseases Control and Prevention,Liaoning Provincial Center for Disease Control and Prevention, Shenyang 110005, China
| | - X Kang
- Institute of AIDS and Sexually Transmitted Diseases Control and Prevention,Liaoning Provincial Center for Disease Control and Prevention, Shenyang 110005, China
| | - L Wang
- Institute of AIDS and Sexually Transmitted Diseases Control and Prevention,Liaoning Provincial Center for Disease Control and Prevention, Shenyang 110005, China
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139
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O'Byrne K, Ma N, Sadeghirad H, Jhaveri N, Monkman J, Pratapa A, Ben Cheikh B, Ladwa R, Hughes B, Braubach O, Kulasinghe A. 654MO High dimensional immuno-phenotyping of immunotherapy response in head and neck cancer. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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140
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Kulasinghe A, Ma N, Monkman J, Pratapa A, Braubach O, O'Byrne K. EP16.04-003 High Dimensional Spatial Profiling of the NSCLC Tumour Microenvironment. J Thorac Oncol 2022. [DOI: 10.1016/j.jtho.2022.07.1111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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141
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Ma N, Zhang Y. Effects of resveratrol therapy on glucose metabolism, insulin resistance, inflammation, and renal function in the elderly patients with type 2 diabetes mellitus: A randomized controlled clinical trial protocol. Medicine (Baltimore) 2022; 101:e30049. [PMID: 35960095 PMCID: PMC9371579 DOI: 10.1097/md.0000000000030049] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
BACKGROUND Diabetes mellitus is a spectrum of metabolic disorders characterized by hyperglycemia and shows a growing global public health problem in the elderly. Resveratrol presents antiaging, anti-inflammatory, antitumor antioxidant, and cardioprotective activities. The purpose of this study was to investigate the ameliorative effects of resveratrol on blood glucose, insulin metabolism, lipid profile, renal function, inflammation, and nutrient sensing systems in the elderly patients with type 2 diabetes mellitus. METHODS The study is a single-blind, parallel-group, randomized controlled clinical trial consisting of a 6-month treatment period. A total of 472 elderly patients with type 2 diabetes mellitus were enrolled, and included participants will be randomized into 2 groups: resveratrol (n = 242) and placebo (n = 230). The clinical efficacy and changes in clinical parameters in each group will be measured at the indicated time. Clinical parameters included blood glucose, insulin resistance index, blood lipid index, proinflammatory cytokines, renal function, and nutrient sensing systems. RESULTS Resveratrol treatment greatly improved glucose metabolism, insulin tolerance, and insulin metabolism compared to placebo. Resveratrol relieved symptoms through enhancing nutrient sensing systems, which in turn reduced production and activity of glucose-6-phosphatase. Compared with placebo, resveratrol treatment significantly decreased proinflammatory cytokines glycated hemoglobin/hemoglobin A1c, interleukin-6, tumor necrosis factor-alpha, and interleukin-1beta in the elderly diabetes. Resveratrol treatment decreased blood glucose parameters, improved the lipid profile (total cholesterol, low-density lipoprotein, high-density lipoprotein, and triglycerides), and renal function compared to placebo. CONCLUSION In conclusion, resveratrol treatment improves inflammation, renal function, blood glucose parameters, inflammation, insulin resistance, and nutrient sensing systems in the elderly patients with type 2 diabetes mellitus, indicating resveratrol may be a potential therapeutic drug for the treatment of the elderly patients with type 2 diabetes mellitus.
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Affiliation(s)
- Nan Ma
- Geriatric Ward, The First Hospital of Harbin, Harbin, China
- *Correspondence: Nan Ma, Geriatric Ward, The First Hospital of Harbin, No. 151, Tiandi Street, Daoli District, Harbin 150010, China (e-mail: )
| | - Youzhi Zhang
- Department of Emergency, Affiliated Hospital of Sichuan Nursing Vocational College (The Third People’s Hospital of Sichuan Province), Chengdu, China
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Pang B, Yin D, Zhai Y, He A, Qiu L, Liu Q, Ma N, Shen H, Jia Q, Liang Z, Wang D. Diversity of endophytic fungal community in Huperzia serrata from different ecological areas and their correlation with Hup A content. BMC Microbiol 2022; 22:191. [PMID: 35931950 PMCID: PMC9354316 DOI: 10.1186/s12866-022-02605-y] [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: 03/24/2022] [Accepted: 07/18/2022] [Indexed: 11/10/2022] Open
Abstract
Background Huperzine A (Hup A) has attracted considerable attention as an effective therapeutic candidate drug used to treat Alzheimer’s disease. Whereas, the production of Hup A from wild plants faced a major challenge, which is the wild Huperzia Serrata harbor a low Hup A content, has a long-life cycle, and has a small yield. At present, several reports showed that Hup A is produced by various endophytic fungal strains isolated from H. serrata, thereby providing an alternative method to produce the compound and reduce the consumption of this rare and endangered plant. However, till now, very few comprehensive studies are available on the biological diversity and structural composition of endophytic fungi and the effects of endophytic fungi on the Hup A accumulation in H. serrata. Results In this research, the composition and diversity of fungal communities in H. serrata were deciphered based on high-throughput sequencing technology of fungal internal transcribed spacer regions2 (ITS2). The correlation between endophytic fungal community and Hup A content was also investigated. Results revealed that the richness and the diversity of endophytic fungi in H. serrata was various according to different tissues and different ecological areas. The endophytic fungal communities of H. serrata exhibit species-specific, ecological-specific, and tissue-specific characteristics. There are 6 genera (Ascomycota_unclassified, Cyphellophora, Fungi_unclassified, Sporobolomyces, and Trichomeriaceae_unclassified) were significantly positively correlated with Hup A content in all two areas, whereas, there are 6 genera (Auricularia, Cladophialophora, Cryptococcus, Mortierella, and Mycena) were significantly negatively correlated with Hup A content of in all two areas. Conclusions This study indicated a different composition and diverse endophytic fungal communities in H. serrata from different organs and ecological areas. The current study will provide the realistic basis and theoretical significance for understanding the biological diversity and structural composition of endophytic fungal communities in H. serrata, as well as providing novel insights into the interaction between endophytic fungi and Hup A content.
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Affiliation(s)
- Bo Pang
- College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou, 310018, Zhejiang, China
| | - Dengpan Yin
- College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou, 310018, Zhejiang, China
| | - Yufeng Zhai
- College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou, 310018, Zhejiang, China
| | - Anguo He
- Administration of Zhejiang Dapanshan National Nature Reserve, Pan'an, Zhejiang, 322300, China
| | - Linlin Qiu
- College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou, 310018, Zhejiang, China
| | - Qiao Liu
- College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou, 310018, Zhejiang, China
| | - Nan Ma
- College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou, 310018, Zhejiang, China
| | - Hongjun Shen
- Ningbo Delai Medicinal Material Planting Co, Zhejiang, 315444, Ltd Ningbo, China
| | - Qiaojun Jia
- College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou, 310018, Zhejiang, China
| | - Zongsuo Liang
- College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou, 310018, Zhejiang, China
| | - Dekai Wang
- College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou, 310018, Zhejiang, China.
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143
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Chen C, Zhang Z, Wei L, Qiu Y, Xu W, Song S, Sun J, Li Z, Chen Y, Ma N, Xu W, Pan X, Fu P, Sun Y. The importance of hydroxymethanesulfonate (HMS) in winter haze episodes in North China Plain. Environ Res 2022; 211:113093. [PMID: 35292245 DOI: 10.1016/j.envres.2022.113093] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [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: 02/08/2022] [Revised: 02/27/2022] [Accepted: 03/05/2022] [Indexed: 06/14/2023]
Abstract
Hydroxymethanesulfonate (HMS), a key marker species of aqueous-phase processing, plays a significant role in sulfur budget in atmosphere. Here we have a comprehensive characterization of HMS at urban and rural sites in North China Plain (NCP) by using the real-time measurements from a high-resolution aerosol mass spectrometer (AMS) and a single-particle AMS together with offline filter analysis. Our results showed much higher winter concentration of HMS at the rural site (average±1σ: 2.58 ± 2.56 μg m-3) than that (1.70 ± 2.68 μg m-3) in Beijing due to the more frequent fog events, low particle acidity and high concentration of precursors. The HMS on average contributed 6.3% and 5.2% to organic aerosol (OA), and 16% and 12% to the total particulate sulfur, at the rural and urban sites, respectively. HMS was highly correlated with aqueous-phase secondary OA and sulfate, and its contribution to the total particulate sulfur increased significantly as a function of relative humidity demonstrating the effective HMS production from aqueous-phase processing. Single-particle analysis showed that HMS-containing particles were mainly mixed with amine-related compounds. In addition, we found that organosulfur compounds (OS) estimated from sulfur-containing fragments of AMS correlated well with HMS at both urban and rural sites. While OS at the rural site was dominated by HMS, other types of OS were also important in urban area. The high HMS also affected the estimation of particle acidity using the AMS measured and predicted ammonium, particularly during severe haze episodes. Overall, our results demonstrated the importance of HMS in winter in NCP, and it could be more important in total particulate sulfur budget as the continuous decrease in sulfate in the future.
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Affiliation(s)
- Chun Chen
- State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, 100029, China; College of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Zhiqiang Zhang
- State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, 100029, China; College of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Lianfang Wei
- State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, 100029, China
| | - Yanmei Qiu
- State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, 100029, China; College of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Weiqi Xu
- State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, 100029, China
| | - Shaojie Song
- School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, 02138, USA
| | - Jiaxing Sun
- State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, 100029, China; College of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Zhijie Li
- State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, 100029, China; College of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yunle Chen
- Department of Public Health Sciences, University of Rochester School of Medicine and Dentistry, Rochester, NY, 14642, USA
| | - Nan Ma
- Institute for Environmental and Climate Research, Jinan University, Guangzhou, 511443, China
| | - Wanyun Xu
- State Key Laboratory of Severe Weather & Key Laboratory for Atmospheric Chemistry, Institute of Atmospheric Composition, Chinese Academy of Meteorological Sciences, Beijing, 100081, China
| | - Xiaole Pan
- State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, 100029, China
| | - Pingqing Fu
- College of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China; Institute of Surface-Earth System Science, Tianjin University, Tianjin, 300072, China
| | - Yele Sun
- State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, 100029, China; College of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China; Center for Excellence in Regional Atmospheric Environment, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, 361021, China.
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Tang M, Yan X, Gao J, Li L, Zhe X, Zhang X, Jiang F, Hu J, Ma N, Ai K, Zhang X. High-Resolution MRI for Evaluation of the Possibility of Successful Recanalization in Symptomatic Chronic ICA Occlusion: A Retrospective Study. AJNR Am J Neuroradiol 2022; 43:1164-1171. [PMID: 35863780 PMCID: PMC9575431 DOI: 10.3174/ajnr.a7576] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Accepted: 05/31/2022] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Accurate radiologic evaluation of the possibility of successful recanalization in symptomatic chronic ICA occlusion remains challenging. This study aimed to investigate the high-resolution MR imaging characteristics of symptomatic chronic ICA occlusion and their association with successful recanalization. MATERIALS AND METHODS Consecutive patients with symptomatic chronic ICA occlusion who underwent balloon dilation plus stent implantation were identified retrospectively and divided into 2 groups: a successful recanalization group and an unsuccessful recanalization group. Clinical and high-resolution MR imaging characteristics were compared between the groups. Univariate and multivariate analyses were used to identify the characteristics associated with successful recanalization. RESULTS A total of 114 patients were included in the study. High-resolution MR imaging characteristics independently associated with unsuccessful recanalization were longer lesion length (OR, 0.41; 95% CI, 0.36-0.55; P = .009) and larger calcification volume (OR, 0.56; 95% CI, 0.37-0.68; P = .002) for proximal occlusion and reversed distal ICA flow at the level of ophthalmic segment or above (OR, 0.14; 95% CI, 0.08-0.48; P = .001). Reversed distal ICA flow at the level of the petrous segment or below (OR, 4.07; 95% CI, 1.65-8.38; P = .001) and lumen area (OR, 1.13; 95% CI, 1.04-1.61; P = .002) for distal occlusion were risk factors of successful recanalization. CONCLUSIONS In symptomatic chronic ICA occlusion, lesion length and calcification volume (for proximal occlusion), the level of reversed distal ICA flow, and the lumen area (for distal occlusion) appear to be predictors of successful recanalization. High-resolution MR imaging can evaluate chronic ICA occlusion and help in clinical decision-making.
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Affiliation(s)
- M Tang
- From the Departments of MRI (M.T., X.Y., J.G., L.L., X. Zhe., X. Zhang., N.M., X. Zhang)
| | - X Yan
- From the Departments of MRI (M.T., X.Y., J.G., L.L., X. Zhe., X. Zhang., N.M., X. Zhang)
| | - J Gao
- From the Departments of MRI (M.T., X.Y., J.G., L.L., X. Zhe., X. Zhang., N.M., X. Zhang)
| | - L Li
- From the Departments of MRI (M.T., X.Y., J.G., L.L., X. Zhe., X. Zhang., N.M., X. Zhang)
| | - X Zhe
- From the Departments of MRI (M.T., X.Y., J.G., L.L., X. Zhe., X. Zhang., N.M., X. Zhang)
| | - Xin Zhang
- From the Departments of MRI (M.T., X.Y., J.G., L.L., X. Zhe., X. Zhang., N.M., X. Zhang)
| | - F Jiang
- Neurology (F.J., J.H.), Shaanxi Provincial People's Hospital, Beilin District, Xi'an City, Shaanxi Province, China
| | - J Hu
- Neurology (F.J., J.H.), Shaanxi Provincial People's Hospital, Beilin District, Xi'an City, Shaanxi Province, China
| | - N Ma
- From the Departments of MRI (M.T., X.Y., J.G., L.L., X. Zhe., X. Zhang., N.M., X. Zhang)
| | - K Ai
- Department of Clinical Science (K.A.), Philips Healthcare, Xìan, China
| | - Xiaoling Zhang
- From the Departments of MRI (M.T., X.Y., J.G., L.L., X. Zhe., X. Zhang., N.M., X. Zhang)
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145
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Zhao Z, Li W, Zhu L, Xu B, Jiang Y, Ma N, Liu L, Qiu J, Zhang M. Construction and Verification of a Fibroblast-Related Prognostic Signature Model for Colon Cancer. Front Genet 2022; 13:908957. [PMID: 35910200 PMCID: PMC9329609 DOI: 10.3389/fgene.2022.908957] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Accepted: 06/23/2022] [Indexed: 11/13/2022] Open
Abstract
Traditionally, cancer-associated fibroblasts (CAFs), an essential component of tumor microenvironment, were exert a crucial part in colon cancer progression. In this study, single-cell RNA-sequencing (scRNA-seq) data from 23 and bulk RNA-seq data from 452 colon cancer patients were extracted from the GEO database and TCGA-COAD and GEO databases, respectively. From single-cell analysis, 825 differentially expressed genes (DEGs) in CAFs were identified between each pair of six newly defined CAFs, named enCAF, adCAF, vaCAF, meCAF, erCAF, and cyCAF. Cell communication analysis with the iTALK package showed communication relationship between CAFs, including cell autocrine, cytokine, and growth factor subtypes, such as receptor-ligand pairs of TNFSF14-LTBR, IL6-F3, and IL6-IL6ST. Herein, we demonstrated the presence and prognostic value of adCAF and erCAF in colon cancer based on CIBERSORTx, combining single-cell marker genes and transcriptomics data. The prognostic significance of the enCAF and erCAF has been indirectly proved by both the correlation analysis with macrophages and CAFs, and the quantitative reverse transcription-polymerase chain reaction (qRT-PCR) experiment based on 20 paired tumor samples. A prognostic model was constructed with 10 DEGs using the LASSO Cox regression method. The model was validated using two testing datasets, indicate a significant survival accuracy (p < 0.0025). Correlation analyses between clinical information, such as age, gender, tumor stage and tumor features (tumor purity and immune score), and risk scores revealed our CAF-related model’s robustness and excellent performance. Cell infiltration analysis by xCell revealed that the interaction between CAFs and multiple non-specific immune cells such as macrophages and the dendritic cell was a vital factor affecting immune score and prognosis. Finally, we analyzed how common anti-cancer drugs, including camptothecin, docetaxel and bortezomib, and immunotherapy, such as anti-PD-1 treatment, could be different in low-risk and high-risk patients inferred from our CAF-related model. In conclusion, the study utilized refined colon cancer fibroblast subsets and established the prognostic effects from the interaction with nonspecific immune cell.
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Affiliation(s)
- Zhe Zhao
- Zhengzhou KingMed Center for Clinical Laboratory Co. Ltd., Zhengzhou, China
| | - Wenqi Li
- Department of Newborn Infants, Children’s Hospital of Nanjing Medical University, Nanjing, China
| | - LiMeng Zhu
- Zhengzhou KingMed Center for Clinical Laboratory Co. Ltd., Zhengzhou, China
| | - Bei Xu
- Zhengzhou KingMed Center for Clinical Laboratory Co. Ltd., Zhengzhou, China
| | - Yudong Jiang
- Department of General Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Nan Ma
- Zhengzhou KingMed Center for Clinical Laboratory Co. Ltd., Zhengzhou, China
| | - LiQun Liu
- Zhengzhou KingMed Center for Clinical Laboratory Co. Ltd., Zhengzhou, China
| | - Jie Qiu
- Department of Newborn Infants, Children’s Hospital of Nanjing Medical University, Nanjing, China
| | - Min Zhang
- Zhengzhou KingMed Center for Clinical Laboratory Co. Ltd., Zhengzhou, China
- *Correspondence: Min Zhang,
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Tang XY, Xiong YL, Shi XG, Zhao YB, Shi AP, Zheng KF, Liu YJ, Jiang T, Ma N, Zhao JB. IGSF11 and VISTA: a pair of promising immune checkpoints in tumor immunotherapy. Biomark Res 2022; 10:49. [PMID: 35831836 PMCID: PMC9277907 DOI: 10.1186/s40364-022-00394-0] [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: 04/26/2022] [Accepted: 06/22/2022] [Indexed: 11/20/2022] Open
Abstract
Immunotherapy has become the major treatment for tumors in clinical practice, but some intractable problems such as the low response rate and high rates of immune-related adverse events still hinder the progress of tumor immunotherapy. Hence, it is essential to explore additional immunotherapy treatment targets. In this review, we focus on the structure, expression and expression-related mechanisms, interactions, biological functions and the progress in preclinical/clinical research of IGSF11 and VISTA in tumors. We cover the progress in recent research with this pair of immune checkpoints in tumor immune regulation, proliferation, immune resistance and predictive prognosis. Both IGSF11 and VISTA are highly expressed in tumors and are modulated by various factors. They co-participate in the functional regulation of immune cells and the inhibition of cytokine production. Besides, in the downregulation of IGSF11 and VISTA, both inhibit the growth of some tumors. Preclinical and clinical trials all emphasize the predictive role of IGSF11 and VISTA in the prognosis of tumors, and that the predictive role of the same gene varies from tumor to tumor. At present, further research is proving the enormous potential of IGSF11 and VISTA in tumors, and especially the role of VISTA in tumor immune resistance. This may prove to be a breakthrough to solve the current clinical immune resistance, and most importantly, since research has focused on VISTA but less on IGSF11, IGSF11 may be the next candidate for tumor immunotherapy.
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Affiliation(s)
- Xi-Yang Tang
- Department of Thoracic Surgery, Tangdu Hospital, Air Force Medical University, 569 Xinsi Road, Xi'an, 710038, Shaanxi, China
| | - Yan-Lu Xiong
- Department of Thoracic Surgery, Tangdu Hospital, Air Force Medical University, 569 Xinsi Road, Xi'an, 710038, Shaanxi, China
| | - Xian-Gui Shi
- College of Basic Medicine, Air Force Medical University, Xi'an, 710032, Shaanxi, China
| | - Ya-Bo Zhao
- Department of Thoracic Surgery, Tangdu Hospital, Air Force Medical University, 569 Xinsi Road, Xi'an, 710038, Shaanxi, China
| | - An-Ping Shi
- Department of Radiology & Functional and Molecular Imaging Key Lab of Shaanxi Province, Tangdu Hospital, Fourth Military Medical University (Air Force Medical University), 569 Xinsi Road, Xi'an, 710038, Shaanxi, China
| | - Kai-Fu Zheng
- Department of Thoracic Surgery, Tangdu Hospital, Air Force Medical University, 569 Xinsi Road, Xi'an, 710038, Shaanxi, China
| | - Yu-Jian Liu
- Department of Thoracic Surgery, Tangdu Hospital, Air Force Medical University, 569 Xinsi Road, Xi'an, 710038, Shaanxi, China
| | - Tao Jiang
- Department of Thoracic Surgery, Tangdu Hospital, Air Force Medical University, 569 Xinsi Road, Xi'an, 710038, Shaanxi, China.
| | - Nan Ma
- Department of Ophthalmology, Tangdu Hospital, Air Force Medical University, 569 Xinsi Road, 710038, Xi'an, China.
| | - Jin-Bo Zhao
- Department of Thoracic Surgery, Tangdu Hospital, Air Force Medical University, 569 Xinsi Road, Xi'an, 710038, Shaanxi, China.
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147
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Zhong PL, Liu YF, Ma N, Dang JJ, Dong YH, Chen MM, Ma T, Ma Y, Chen L, Shi D, Song Y. [Effect of outdoor time on the incidence of myopia among primary school students in 9 provinces of China]. Zhonghua Liu Xing Bing Xue Za Zhi 2022; 43:1099-1106. [PMID: 35856206 DOI: 10.3760/cma.j.cn112338-20211111-00876] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Objective: We aimed to assess the effects of outdoor time in preventing incident myopia among primary school students and evaluate its differences among different grades to provide evidence for policy formulation related to myopia prevention. Methods: This study is a cohort study. We investigated 6 046 grade 1 to 5 students in 9 provinces, Jiangsu, Shanghai, Fujian, Shanxi, Henan, Hunan, Gansu, Chongqing, and Guangxi. In 2019, we measured their myopia on site. In 2020, we did a follow-up visit on those students to detect the myopia incidence rate. Information regarding outdoor time and myopia-related behaviors were obtained from a questionnaire within one week of visual acuity measurement in 2020. The chi-square test and Cochran-Armitage trend test compared the differences between groups. The Cox proportional hazards risk model was used to test the relationship between outdoor time and myopia. Results: In 2020, the overall myopia incidence rate of grade 1 to 5 students in the baseline was 27.5%; while 23.0% in grades 1 and 2 students and 31.7% in grades 3 to 5 students, respectively. After controlling for covariates, for students in grade 1 to 2, those with ≥1 hour of outdoor time per day were at 0.76 (95%CI: 0.62-0.93, P=0.008) times risk of being myopia than that of students with <1 hour of outdoor time per day; while for students in grades 3 to 5, an average of ≥3 hours of outdoor time per day was required to have a significant protective effect on myopia. The students with ≥3 hours of outdoor time per day were less likely to be myopia (OR=0.75, 95%CI: 0.61-0.93, P=0.007) than those students with <3 hours of outdoor time per day. Conclusions: For grade 1 and 2 students, 1 hour of outdoor time per day could reduce the incidence of myopia, whereas for grade 3 to 5 students, 3 hours of outdoor time per day could effectively reduce the incidence of myopia. Therefore, the recommendations for outdoor time as myopia prevention should be different for different grades. The higher the grade is, the more outdoor time should be spent to reduce myopia incidence. Moreover, other factors that affect myopia's incidence should be also paid attention to, and a comprehensive approach should be adopted to prevent and control the incidence of myopia.
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Affiliation(s)
- P L Zhong
- School of Public Health & Institute of Child and Adolescent Health, Peking University Health Science Center, Beijing 100191, China
| | - Y F Liu
- School of Public Health & Institute of Child and Adolescent Health, Peking University Health Science Center, Beijing 100191, China
| | - N Ma
- School of Public Health & Institute of Child and Adolescent Health, Peking University Health Science Center, Beijing 100191, China
| | - J J Dang
- School of Public Health & Institute of Child and Adolescent Health, Peking University Health Science Center, Beijing 100191, China
| | - Y H Dong
- School of Public Health & Institute of Child and Adolescent Health, Peking University Health Science Center, Beijing 100191, China
| | - M M Chen
- School of Public Health & Institute of Child and Adolescent Health, Peking University Health Science Center, Beijing 100191, China
| | - T Ma
- School of Public Health & Institute of Child and Adolescent Health, Peking University Health Science Center, Beijing 100191, China
| | - Y Ma
- School of Public Health & Institute of Child and Adolescent Health, Peking University Health Science Center, Beijing 100191, China
| | - L Chen
- School of Public Health & Institute of Child and Adolescent Health, Peking University Health Science Center, Beijing 100191, China
| | - D Shi
- School of Public Health & Institute of Child and Adolescent Health, Peking University Health Science Center, Beijing 100191, China
| | - Y Song
- School of Public Health & Institute of Child and Adolescent Health, Peking University Health Science Center, Beijing 100191, China
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148
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Wang S, Huo J, Wei Y, Huan M, Luo Z, Li M, Wen M, Zhong X, He Z, Ma N, Qiu J, Tang X. Effect of erythromycin on the ultrastructure of human macrophages exposed to cigarette smoke extract in vitro. Ultrastruct Pathol 2022; 46:303-312. [PMID: 35686365 DOI: 10.1080/01913123.2022.2060395] [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: 12/29/2021] [Revised: 03/25/2022] [Accepted: 03/28/2022] [Indexed: 10/18/2022]
Abstract
Macrophages serve an active role in the pathophysiology of chronic obstructive pulmonary disease (COPD). Erythromycin (EM) has been verified as an effective treatment for COPD. However, there are few studies on the effect of EM on the ultrastructure of macrophages exposed to cigarette smoke extract (CSE). In the present study, human macrophages were randomly divided into three groups: The control, CSE and the CSE+EM group, using electron microscopy, the effect of EM was evaluated by comparing the ultrastructural changes between these groups. The macrophages were additionally divided into a further four groups: The control, CSE, CSE+EM 24 h and CSE+EM 48 h groups. The generation of reactive oxygen species (ROS) in each group was evaluated by detecting fluorescence intensity. It was observed that the cellular ultrastructure of the CSE group exhibited abnormal changes, though this effect was reversed back to the level of the control in the CSE+EM group. Compared with the control group, the ROS expression level was significantly increased in the CSE group (P < .05); however, compared with the CSE group, the ROS concentration was decreased in the CSE+EM 24 h (P < .05) and CSE+EM 48 h groups (P < .05), though this was more apparent in the EM 48 h group. It was concluded that EM protects human macrophages against CSE. Moreover, it was hypothesized that EM may reduce the symptoms of patients with COPD by protecting the macrophage ultrastructure from the effects of CSE, resulting in the decreased generation of ROS, inhibiting autophagy and reducing endoplasmic reticulum stress.
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Affiliation(s)
- Shaoshuang Wang
- Department of Respiratory Medicine, The First Affiliated Hospital of Guangxi Medical University, Nanning, GX, China
| | - Jianjun Huo
- Department of Respiratory Medicine, The First Affiliated Hospital of Guangxi Medical University, Nanning, GX, China
| | - Yanlin Wei
- Department of Respiratory Medicine, The First Affiliated Hospital of Guangxi Medical University, Nanning, GX, China
| | - Mei Huan
- Department of Respiratory Medicine, The First Affiliated Hospital of Guangxi Medical University, Nanning, GX, China
| | - Zhouling Luo
- Department of Respiratory Medicine, The First Affiliated Hospital of Guangxi Medical University, Nanning, GX, China
| | - Meihua Li
- Department of Respiratory Medicine, The First Affiliated Hospital of Guangxi Medical University, Nanning, GX, China
| | - Mingzhi Wen
- Department of Respiratory Medicine, The First Affiliated Hospital of Guangxi Medical University, Nanning, GX, China
| | - Xiaoning Zhong
- Department of Respiratory Medicine, The First Affiliated Hospital of Guangxi Medical University, Nanning, GX, China
| | - Zhiyi He
- Department of Respiratory Medicine, The First Affiliated Hospital of Guangxi Medical University, Nanning, GX, China
| | - Nan Ma
- Department of Respiratory Medicine, The First Affiliated Hospital of Guangxi Medical University, Nanning, GX, China
| | - Jufeng Qiu
- Department of Respiratory Medicine, The First Affiliated Hospital of Guangxi Medical University, Nanning, GX, China
| | - Xiaojuan Tang
- Department of Respiratory Medicine, The First Affiliated Hospital of Guangxi Medical University, Nanning, GX, China
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Yang G, Cui S, Ma N, Song Y, Ma J, Huang W, Zhang Y, Xu J. Genetic Structure and Triazole Antifungal Susceptibilities of Alternaria alternata from Greenhouses in Kunming, China. Microbiol Spectr 2022; 10:e0038222. [PMID: 35546576 PMCID: PMC9241833 DOI: 10.1128/spectrum.00382-22] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2022] [Accepted: 04/22/2022] [Indexed: 11/20/2022] Open
Abstract
Alternaria alternata is an opportunistic human fungal pathogen and a ubiquitous phytopathogen capable of causing diseases to >100 agricultural crops and ornamental plants. To control plant diseases caused by A. alternata, triazole fungicides have been widely used both in open crop and vegetable fields and in indoor growth facilities such as greenhouses. At present, the effect of fungicide use on triazole resistance development in A. alternata populations is not known. Here, we isolated 237 A. alternata strains from nine greenhouses around metropolitan Kunming in Yunnan, southwest China, determined their genotypes using 10 short tandem repeat markers, and quantified their susceptibility to four triazoles (difenoconazole, tebuconazole, itraconazole, and voriconazole). Abundant allelic and genotypic diversities were detected among these A. alternata strains. Significantly, over 17% of the strains were resistant to difenoconazole, and both known and new drug-resistance mutations were found in the triazole target gene cyp51. Our findings of high-level genetic variation of A. alternata in greenhouses coupled with high-frequency fungicide resistance call for greater attention to continued monitoring and to developing alternative plant fungal disease management strategies in greenhouses. IMPORTANCE Alternaria alternata is among the most common fungi in our environments, such as indoor facilities, the soil, and outdoor air. It can cause diseases in >100 crop and ornamental plants. Furthermore, it can cause human infections. However, our understanding of its genetic diversity and antifungal susceptibility is very limited. Indeed, the critical threshold values for resistance have not been defined for most antifungal drugs in this species. Greenhouses are known to have heavy applications of agricultural fungicides. In this study, we analyzed strains of A. alternata from nine greenhouses near metropolitan Kunming in southwestern China. Our study revealed very high genetic diversity and identified strains with high MIC values against two agricultural and two medical triazole antifungals within each of the nine greenhouses. Our study calls for greater attention to this emerging threat to food security and human health.
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Affiliation(s)
- Guangzhu Yang
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Key Laboratory for Southwest Microbial Diversity of the Ministry of Education, Yunnan University, Kunming, People’s Republic of China
- School of Life Science, Yunnan University, Kunming, People’s Republic of China
- Horticultural Research Institute, Yunnan Academy of Agricultural Sciences, Kunming, People’s Republic of China
| | - Sai Cui
- School of Life Science, Yunnan University, Kunming, People’s Republic of China
| | - Nan Ma
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Key Laboratory for Southwest Microbial Diversity of the Ministry of Education, Yunnan University, Kunming, People’s Republic of China
| | - Yuansha Song
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Key Laboratory for Southwest Microbial Diversity of the Ministry of Education, Yunnan University, Kunming, People’s Republic of China
| | - Jun Ma
- Horticultural Research Institute, Yunnan Academy of Agricultural Sciences, Kunming, People’s Republic of China
| | - Wenjing Huang
- Horticultural Research Institute, Yunnan Academy of Agricultural Sciences, Kunming, People’s Republic of China
| | - Ying Zhang
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Key Laboratory for Southwest Microbial Diversity of the Ministry of Education, Yunnan University, Kunming, People’s Republic of China
| | - Jianping Xu
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Key Laboratory for Southwest Microbial Diversity of the Ministry of Education, Yunnan University, Kunming, People’s Republic of China
- Department of Biology, McMaster University, Hamilton, Ontario, Canada
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Gao J, Qian J, Ma N, Han J, Cui F, chen N, Tu Y. Protective Effects of Polydatin on Reproductive Injury Induced by Ionizing Radiation. Dose Response 2022; 20:15593258221107511. [PMID: 35783236 PMCID: PMC9244944 DOI: 10.1177/15593258221107511] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
The reproductive system is vulnerable to ionizing radiation, which is a hot research topic at present. We tested the effect of polydatin on spermatocytes(GC-1 cells) after X-ray irradiation. The reproductive damage model of C.elegans was established by 60Coγ-ray, and the protective effect of polydatin on reproductive damage caused by ionizing radiation was evaluated. We quantified the ROS levels of GC-1 cells and C.elegans after irradiation with polydatin and evaluated the anti-apoptosis effect of polydatin at proper concentration. Differential genes of C.elegans reproductive damage were screened out from transcriptome sequencing results and comparable GEO datasets. It was proved that 100μM polydatin significantly reduced the apoptosis of GC-1 cells induced by 2 Gy X-ray. In addition, the longevity, reproductive capacity, germ cell apoptosis and spawning and hatching capacity of polydatin were tested. The results showed that 100 μM polydatin content significantly increased the influence of 50 Gy 60Coγ-ray on reproductive capacity of C.elegans. Quantitative analysis of mRNA and protein levels of apoptosis-related genes and reproductive-related genes by qRT-PCR and Western blotcon firmed that polydatin with appropriate dosage had good protective effects on reproductive damage caused by radiation, which laid a foundation for the application research of polydatin in radiation protection.
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Affiliation(s)
- Jin Gao
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection, Soochow University, Suzhou, China
- Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Suzhou, China
| | - Jincheng Qian
- Department of Nuclear Medicine, First Affiliated Hospital of Soochow University, Suzhou, China
| | - Nan Ma
- The Second Affiliated Hospital of Soochow University, Suzhou, China
| | - Jianfang Han
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection, Soochow University, Suzhou, China
- Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Suzhou, China
| | - Fengmei Cui
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection, Soochow University, Suzhou, China
- Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Suzhou, China
| | - Na chen
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection, Soochow University, Suzhou, China
- Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Suzhou, China
| | - Yu Tu
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection, Soochow University, Suzhou, China
- Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Suzhou, China
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