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Ye T, Wang H, An C, Tu H, Zhang L, Hu D, Xiong H, Xiong L. An expanded cysteine-rich receptor-like kinase gene cluster functionally differentiates in drought, cold, heat, and pathogen stress responses in rice. Plant Biotechnol J 2024. [PMID: 38762897 DOI: 10.1111/pbi.14381] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Revised: 04/19/2024] [Accepted: 05/06/2024] [Indexed: 05/21/2024]
Affiliation(s)
- Tiantian Ye
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, China
| | - Huaijun Wang
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, China
| | - Chengjing An
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, China
| | - Haifu Tu
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, China
| | - Lingqun Zhang
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, China
| | - Dan Hu
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, China
| | - Haiyan Xiong
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, China
| | - Lizhong Xiong
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, China
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Liu Z, Li X, Xiong H, Zhou Q, Yi H, Wu K, Zhou Z, Lu Y, Zhu Y, Zhou L, Zhang M, Gao J, Gao J, Chen S, Wang X, Wang W. Genomic and spatial analysis reveal the transmission dynamics of tuberculosis in areas with high incidence of Zhejiang, China: A prospective cohort study. Infect Genet Evol 2024; 121:105603. [PMID: 38723983 DOI: 10.1016/j.meegid.2024.105603] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Revised: 03/28/2024] [Accepted: 05/05/2024] [Indexed: 05/14/2024]
Abstract
In the mountainous, rural regions of eastern China, tuberculosis (TB) remains a formidable challenge; however, the long-term molecular epidemiological surveillance in these regions is limited. This study aimed to investigate molecular and spatial epidemiology of TB in two mountainous, rural counties of Zhejiang Province, China, from 2015 to 2021, to elucidate the recent transmission and drug-resistance profiles. The predominant Lineage 2 (L2) Beijing family accounted for 80.1% of total 532 sequenced Mycobacterium tuberculosis (Mtb) strains, showing consistent prevalence over seven years. Gene mutations associated with drug resistance were identified in 19.4% (103/532) of strains, including 47 rifampicin or isoniazid-resistant strains, eight multi-drug-resistant (MDR) strains, and five pre-extensively drug-resistant (pre-XDR) strains. Genomic clustering revealed 53 distinct clusters with an overall transmission clustering rate of 23.9% (127/532). Patients with a history of retreatment and those infected with L2 strains had a higher risk of recent transmission. Spatial and epidemiological analysis unveiled significant transmission hotspots, especially in densely populated urban areas, involving various public places such as medical institutions, farmlands, markets, and cardrooms. The study emphasizes the pivotal role of Beijing strains and urban-based TB transmission in the western mountainous regions in Zhejiang, highlighting the urgent requirement for specific interventions to mitigate the impact of TB in these unique communities.
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Affiliation(s)
- Zhengwei Liu
- The Institute of TB Control, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, Zhejiang 310051, China
| | - Xiangchen Li
- Key Laboratory of Precision Medicine in Diagnosis and Monitoring Research of Zhejiang Province, Hangzhou, Zhejiang 310020, China
| | - Haiyan Xiong
- School of Public Health, Fudan University, Shanghai 200032, China; Key Laboratory of Public Health Safety of Ministry of Education, Fudan University, Shanghai 200032, China
| | - Qingrong Zhou
- Center for Disease Control and Prevention of Jiangshan City, Zhejiang 324100, China
| | - Huaiming Yi
- Center for Disease Control and Prevention of Changshan County, Zhejiang 324200, China
| | - Kunyang Wu
- The Institute of TB Control, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, Zhejiang 310051, China
| | - Zonglei Zhou
- School of Public Health, Fudan University, Shanghai 200032, China
| | - Yewei Lu
- Key Laboratory of Precision Medicine in Diagnosis and Monitoring Research of Zhejiang Province, Hangzhou, Zhejiang 310020, China
| | - Yelei Zhu
- The Institute of TB Control, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, Zhejiang 310051, China
| | - Lin Zhou
- The Institute of TB Control, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, Zhejiang 310051, China
| | - Mingwu Zhang
- The Institute of TB Control, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, Zhejiang 310051, China
| | - Junshun Gao
- Key Laboratory of Precision Medicine in Diagnosis and Monitoring Research of Zhejiang Province, Hangzhou, Zhejiang 310020, China
| | - Junli Gao
- Key Laboratory of Precision Medicine in Diagnosis and Monitoring Research of Zhejiang Province, Hangzhou, Zhejiang 310020, China
| | - Songhua Chen
- The Institute of TB Control, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, Zhejiang 310051, China.
| | - Xiaomeng Wang
- The Institute of TB Control, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, Zhejiang 310051, China.
| | - Weibing Wang
- School of Public Health, Fudan University, Shanghai 200032, China; Key Laboratory of Public Health Safety of Ministry of Education, Fudan University, Shanghai 200032, China.
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Wang C, Forsman LD, Wang S, Wang S, Shao G, Xiong H, Bao Z, Hu Y. The diagnostic performance of GeneXpert MTB/RIF in tuberculosis meningitis: A multicentre accuracy study. Diagn Microbiol Infect Dis 2024; 109:116277. [PMID: 38677052 DOI: 10.1016/j.diagmicrobio.2024.116277] [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: 07/21/2023] [Revised: 01/10/2024] [Accepted: 03/18/2024] [Indexed: 04/29/2024]
Abstract
OBJECTIVES To evaluate the performance of GeneXpert MTB/RIF (Xpert) for tuberculous meningitis (TBM) and to identify additional indicators to improve diagnostic accuracy. METHODS An accuracy study was conducted. During 2011-2019, 243 TBM with 140 non-TBM in three TB-designated facilities in China were enrolled. Microbiological evidence of M tuberculosis (Mtb) in CSF was used as the reference. Additional indicators were identified by Boosted-Classification and Regression Tree (CART), the improvement of diagnostic performance was evaluated by ROC. RESULTS The diagnostic sensitivity of Xpert was 71.1 % for definite TBM, and 5.5 % for probable/possible TBM. The positive rate of Xpert was improved with cerebrospinal fluid (CSF) increasing volume and was associated with CSF color (yellow). The additional indicators obtained by CART were CSF lactate and glucose and increased the sensitivity to 96.1 % (definite TBM) and 84.6 % (probable/possible TBM). CONCLUSIONS The diagnostic performance of Xpert was satisfactory in definite TBM and would significantly be improved by the additional use of CSF lactate and glucose.
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Affiliation(s)
- Chenyuan Wang
- Department of Epidemiology, School of Public Health, Fudan University, Shanghai 200032, China and Key Laboratory of Public Health Safety (Fudan University), Ministry of Education, China
| | - Lina Davies Forsman
- Division of Infectious Diseases, Department of Medicine, Karolinska Institutet, Sweden; Department of Infectious Diseases, Karolinska University Hospital, Stockholm, Sweden
| | - Shanshan Wang
- Department of Epidemiology, School of Public Health, Fudan University, Shanghai 200032, China and Key Laboratory of Public Health Safety (Fudan University), Ministry of Education, China
| | - Sainan Wang
- Department of Epidemiology, School of Public Health, Fudan University, Shanghai 200032, China and Key Laboratory of Public Health Safety (Fudan University), Ministry of Education, China
| | - Ge Shao
- Department of Epidemiology, School of Public Health, Fudan University, Shanghai 200032, China and Key Laboratory of Public Health Safety (Fudan University), Ministry of Education, China
| | - Haiyan Xiong
- Department of Epidemiology, School of Public Health, Fudan University, Shanghai 200032, China and Key Laboratory of Public Health Safety (Fudan University), Ministry of Education, China
| | - Ziwei Bao
- Suzhou Fifth People's Hospital, Suzhou City, Jiangsu, China.
| | - Yi Hu
- Department of Epidemiology, School of Public Health, Fudan University, Shanghai 200032, China and Key Laboratory of Public Health Safety (Fudan University), Ministry of Education, China
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Fan Z, Lali MN, Xiong H, Luo Y, Wang Y, Wang Y, Lu M, Wang J, He X, Shi X, Zhang Y. Seedlings of Poncirus trifoliata exhibit tissue-specific detoxification in response to NH 4 + toxicity. Plant Biol (Stuttg) 2024; 26:467-475. [PMID: 38466186 DOI: 10.1111/plb.13621] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Accepted: 01/18/2024] [Indexed: 03/12/2024]
Abstract
Ammonium nitrogen (NH4 +-N) is essential for fruit tree growth, but the impact of excess NH4 +-N from fertilizer on evergreen citrus trees is unclear. In a climate chamber, 8-month-old citrus plants were exposed to five different hydroponic NH4 +-N concentrations (0, 5, 10, 15 and 20 mm) for 1 month to study effects of NH4 +-N on growth characteristics, N uptake, metabolism, antioxidant enzymes and osmotic regulatory substances. Application of 10 mm NH4 +-N adversely affected root plasma membrane integrity, root physiological functions, and plant biomass. MDA, CAT, POD, APX and SOD content were significantly correlated with leaf N metabolic enzyme activity (GOGAT, GDH, GS and NR). GDH was the primary enzyme involved in NH4 +-N assimilation in leaves, while the primary pathway involved in roots was GS-GOGAT. Under comparatively high NH4 + addition, roots were the main organs involved in NH4 + utilization in citrus seedlings. Our results demonstrated that variations in NH4 + concentration and enzyme activity in various organs are associated with more effective N metabolism in roots than in leaves to prevent NH4 + toxicity in evergreen woody citrus plants. These results provide insight into the N forms used by citrus plants that are important for N fertilizer management.
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Affiliation(s)
- Z Fan
- College of Resources and Environment, Southwest University, Chongqing, China
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi, China
| | - M N Lali
- College of Resources and Environment, Southwest University, Chongqing, China
- Department of Forestry and Natural Resources, Faculty of Agriculture, Bamyan University, Bamyan, Afghanistan
| | - H Xiong
- College of Resources and Environment, Southwest University, Chongqing, China
| | - Y Luo
- College of Resources and Environment, Southwest University, Chongqing, China
| | - Y Wang
- College of Resources and Environment, Southwest University, Chongqing, China
- Interdisciplinary Research Center for Agriculture Green Development in Yangtze River Basin, Southwest University, Chongqing, China
| | - Y Wang
- Development and Guidance Station of Cereal and Oil Crops in Hechuan District, Chongqing, China
| | - M Lu
- College of Resources and Environment, Southwest University, Chongqing, China
- Chongqing Agro-Tech Extension Station, Chongqing, China
| | - J Wang
- College of Resources and Environment, Southwest University, Chongqing, China
- Interdisciplinary Research Center for Agriculture Green Development in Yangtze River Basin, Southwest University, Chongqing, China
| | - X He
- College of Resources and Environment, Southwest University, Chongqing, China
| | - X Shi
- College of Resources and Environment, Southwest University, Chongqing, China
- Interdisciplinary Research Center for Agriculture Green Development in Yangtze River Basin, Southwest University, Chongqing, China
| | - Y Zhang
- College of Resources and Environment, Southwest University, Chongqing, China
- Interdisciplinary Research Center for Agriculture Green Development in Yangtze River Basin, Southwest University, Chongqing, China
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Qian J, Hu T, Xiong H, Cao X, Liu F, Gosnell KJ, Xie M, Chen R, Tan QG. Turbid Waters and Clearer Standards: Refining Water Quality Criteria for Coastal Environments by Encompassing Metal Bioavailability from Suspended Particles. Environ Sci Technol 2024; 58:5244-5254. [PMID: 38466635 DOI: 10.1021/acs.est.3c09599] [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] [Indexed: 03/13/2024]
Abstract
Suspended particulate matter (SPM) carries a major fraction of metals in turbid coastal waters, markedly influencing metal bioaccumulation and posing risks to marine life. However, its effects are often overlooked in current water quality criteria for metals, primarily due to challenges in quantifying SPM's contribution. This contribution depends on the SPM concentration, metal distribution coefficients (Kd), and the bioavailability of SPM-bound metals (assimilation efficiency, AE), which can collectively be integrated as a modifying factor (MF). Accordingly, we developed a new stable isotope method to measure metal AE by individual organisms from SPM, employing the widely distributed filter-feeding clam Ruditapes philippinarum as a representative species. Assessing SPM from 23 coastal sites in China, we found average AEs of 42% for Zn, 26% for Cd, 20% for Cu, 8% for Ni, and 6% for Pb. Moreover, using stable isotope methods, we determined metal Kd of SPM from these sites, which can be well predicted by the total organic carbon and iron content (R2 = 0.977). We calculated MFs using a Monte Carlo method. The calculated MFs are in the range 9.9-43 for Pb, 8.5-37 for Zn, 2.9-9.7 for Cu, 1.4-2.7 for Ni, and 1.1-1.6 for Cd, suggesting that dissolved-metal-based criteria values should be divided by MFs to provide adequate protection to aquatic life. This study provides foundational guidelines to refine water quality criteria in turbid waters and protect coastal ecosystems.
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Affiliation(s)
- Jing Qian
- Fujian Provincial Key Laboratory for Coastal Ecology and Environmental Studies, State Key Laboratory of Marine Environmental Science, College of the Environment and Ecology, Xiamen University, Xiamen 361102, Fujian, China
| | - Tingsheng Hu
- Fujian Provincial Key Laboratory for Coastal Ecology and Environmental Studies, State Key Laboratory of Marine Environmental Science, College of the Environment and Ecology, Xiamen University, Xiamen 361102, Fujian, China
| | - Haiyan Xiong
- Fujian Provincial Key Laboratory for Coastal Ecology and Environmental Studies, State Key Laboratory of Marine Environmental Science, College of the Environment and Ecology, Xiamen University, Xiamen 361102, Fujian, China
| | - Xue Cao
- Fujian Provincial Key Laboratory for Coastal Ecology and Environmental Studies, State Key Laboratory of Marine Environmental Science, College of the Environment and Ecology, Xiamen University, Xiamen 361102, Fujian, China
| | - Fengjie Liu
- Grantham Institute - Climate Change and the Environment and Department of Life Sciences, Imperial College London, Exhibition Road, London SW7 2AZ, U.K
| | | | - Minwei Xie
- Fujian Provincial Key Laboratory for Coastal Ecology and Environmental Studies, State Key Laboratory of Marine Environmental Science, College of the Environment and Ecology, Xiamen University, Xiamen 361102, Fujian, China
| | - Rong Chen
- Fujian Provincial Key Laboratory for Coastal Ecology and Environmental Studies, State Key Laboratory of Marine Environmental Science, College of the Environment and Ecology, Xiamen University, Xiamen 361102, Fujian, China
| | - Qiao-Guo Tan
- Fujian Provincial Key Laboratory for Coastal Ecology and Environmental Studies, State Key Laboratory of Marine Environmental Science, College of the Environment and Ecology, Xiamen University, Xiamen 361102, Fujian, China
- GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel D-24148, Germany
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Wang H, Ye T, Guo Z, Yao Y, Tu H, Wang P, Zhang Y, Wang Y, Li X, Li B, Xiong H, Lai X, Xiong L. A double-stranded RNA binding protein enhances drought resistance via protein phase separation in rice. Nat Commun 2024; 15:2514. [PMID: 38514621 PMCID: PMC10957929 DOI: 10.1038/s41467-024-46754-2] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Accepted: 03/08/2024] [Indexed: 03/23/2024] Open
Abstract
Drought stress significantly impacts global rice production, highlighting the critical need to understand the genetic basis of drought resistance in rice. Here, through a genome-wide association study, we reveal that natural variations in DROUGHT RESISTANCE GENE 9 (DRG9), encoding a double-stranded RNA (dsRNA) binding protein, contribute to drought resistance. Under drought stress, DRG9 condenses into stress granules (SGs) through liquid-liquid phase separation via a crucial α-helix. DRG9 recruits the mRNAs of OsNCED4, a key gene for the biosynthesis of abscisic acid, into SGs and protects them from degradation. In drought-resistant DRG9 allele, natural variations in the coding region, causing an amino acid substitution (G267F) within the zinc finger domain, increase DRG9's binding ability to OsNCED4 mRNA and enhance drought resistance. Introgression of the drought-resistant DRG9 allele into the elite rice Huanghuazhan significantly improves its drought resistance. Thus, our study underscores the role of a dsRNA-binding protein in drought resistance and its promising value in breeding drought-resistant rice.
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Affiliation(s)
- Huaijun Wang
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, China
| | - Tiantian Ye
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, China
| | - Zilong Guo
- Haixia Institute of Science and Technology, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Yilong Yao
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, China
| | - Haifu Tu
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, China
| | - Pengfei Wang
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, China
| | - Yu Zhang
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, China
| | - Yao Wang
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, China
| | - Xiaokai Li
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, China
| | - Bingchen Li
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, China
| | - Haiyan Xiong
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, China
| | - Xuelei Lai
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, China.
| | - Lizhong Xiong
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, China.
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Ye Z, Xiong H, Huang L, Zhao Q, Xiong Z, Zhang H, Zhang W. Mechanisms underlying the combination effect of arsenite and high-fat diet on aggravating liver injury in mice. Environ Toxicol 2024; 39:1323-1334. [PMID: 37955338 DOI: 10.1002/tox.24037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2023] [Revised: 09/23/2023] [Accepted: 10/31/2023] [Indexed: 11/14/2023]
Abstract
Arsenic (As) is a highly toxic metalloid that can be found in insufficiently purified drinking water and exerts adverse effects on the physiology of living organisms that can negatively affect human health after subchronic exposure, causing several diseases, such as liver damage. A high-fat diet, which is increasing in frequency worldwide, can aggravate hepatic pathology. However, the mechanisms behind liver injury caused by the combinatory effects of As exposure and a high-fat diet remain unclear. In this study, we investigated such underlying mechanisms by focusing on three different aspects: As biotransformation, pathological liver damage, and differential expression of signaling pathway components. We employed mice that were fed a regular diet or a high-fat diet and exposed them to a range of arsenite concentrations (As(III), 0.05-50 mg/L) for 12 weeks. Our results showed that a high-fat diet increased the absorption of As into the liver and enhanced liver toxicity, which became progressively more severe as the As concentration increased. Co-exposure to a high-fat diet and As(III) activated PI3K/AKT and PPAR signaling as well as fatty acid metabolism pathways. In addition, the expression of proteins related to lipid cell function, lipid metabolism, and the regulation of body weight was also affected. Our study provides insights into the mechanisms that contribute to liver injury from subchronic combinatory exposure to As and a high-fat diet and showcases the importance of a healthy lifestyle, which may be of particular benefit to people living in areas with high As(III) concentrations, as a means to reduce or prevent aggravated liver damage.
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Affiliation(s)
- Zijun Ye
- School of Environmental Science and Engineering, Guangzhou University, Guangzhou, China
| | - Haiyan Xiong
- Key Laboratory of the Coastal and Wetland Ecosystems, Ministry of Education, College of Environment and Ecology, Xiamen University, Xiamen, China
| | - Liping Huang
- School of Environmental Science and Engineering, Guangzhou University, Guangzhou, China
| | - Qianyu Zhao
- School of Environmental Science and Engineering, Guangzhou University, Guangzhou, China
| | - Zhu Xiong
- School of Environmental Science and Engineering, Guangzhou University, Guangzhou, China
| | - Hongguo Zhang
- School of Environmental Science and Engineering, Guangzhou University, Guangzhou, China
| | - Wei Zhang
- School of Environmental Science and Engineering, Guangzhou University, Guangzhou, China
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8
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Wang S, Forsman LD, Xu C, Zhang H, Zhu Y, Shao G, Wang S, Cao J, Xiong H, Niward K, Schön T, Bruchfeld J, Zhu L, Alffenaar JW, Hu Y. Second-line antituberculosis drug exposure thresholds predictive of adverse events in multidrug-resistant tuberculosis treatment. Int J Infect Dis 2024; 140:62-69. [PMID: 38176643 DOI: 10.1016/j.ijid.2024.01.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Revised: 12/29/2023] [Accepted: 01/02/2024] [Indexed: 01/06/2024] Open
Abstract
OBJECTIVES This study aimed to investigate the association between drug exposure and adverse events (AEs) during the standardized multidrug-resistant tuberculosis (MDR-TB) treatment, as well as to identify predictive drug exposure thresholds. METHODS We conducted a prospective, observational multicenter study among participants receiving standardized MDR-TB treatment between 2016 and 2019 in China. AEs were monitored throughout the treatment and their relationships to drug exposure (e.g., the area under the drug concentration-time curve from 0 to 24 h, AUC0-24 h) were analyzed. The thresholds of pharmacokinetic predictors of observed AEs were identified by boosted classification and regression tree (CART) and further evaluated by external validation. RESULTS Of 197 study participants, 124 (62.9%) had at least one AE, and 15 (7.6%) experienced serious AEs. The association between drug exposure and AEs was observed including bedaquiline, its metabolite M2, moxifloxacin and QTcF prolongation (QTcF >450 ms), linezolid and mitochondrial toxicity, cycloserine and psychiatric AEs. The CART-derived thresholds of AUC0-24 h predictive of the respective AEs were 3.2 mg·h/l (bedaquiline M2); 49.3 mg·h/l (moxifloxacin); 119.3 mg·h/l (linezolid); 718.7 mg·h/l (cycloserine). CONCLUSIONS This study demonstrated the drug exposure thresholds predictive of AEs for key drugs against MDR-TB treatment. Using the derived thresholds will provide the knowledge base for further randomized clinical trials of dose adjustment to minimize the risk of AEs.
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Affiliation(s)
- Sainan Wang
- Department of Epidemiology, School of Public Health and Key Laboratory of Public Health Safety, Fudan University, Shanghai, China
| | - Lina Davies Forsman
- Department of Infectious Diseases, Karolinska University Hospital, Stockholm, Sweden; Department of Medicine, Division of Infectious Diseases, Karolinska Institutet Solna, Stockholm, Sweden
| | - Chunhua Xu
- Fengxian District Center for Disease Control and Prevention, Shanghai, China
| | - Haoyue Zhang
- Department of Epidemiology, School of Public Health and Key Laboratory of Public Health Safety, Fudan University, Shanghai, China
| | - Yue Zhu
- Department of Epidemiology, School of Public Health and Key Laboratory of Public Health Safety, Fudan University, Shanghai, China
| | - Ge Shao
- Department of Epidemiology, School of Public Health and Key Laboratory of Public Health Safety, Fudan University, Shanghai, China
| | - Shanshan Wang
- Department of Epidemiology, School of Public Health and Key Laboratory of Public Health Safety, Fudan University, Shanghai, China
| | - Jiayi Cao
- Department of Epidemiology, School of Public Health and Key Laboratory of Public Health Safety, Fudan University, Shanghai, China
| | - Haiyan Xiong
- Department of Epidemiology, School of Public Health and Key Laboratory of Public Health Safety, Fudan University, Shanghai, China
| | - Katarina Niward
- Department of Infectious Diseases in Östergötland, Region Östergötland and Institution for Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden
| | - Thomas Schön
- Department of Infectious Diseases in Östergötland, Region Östergötland and Institution for Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden; Department of Infectious Diseases, Kalmar County Hospital, Kalmar, Linköping University, Sweden
| | - Judith Bruchfeld
- Department of Infectious Diseases, Karolinska University Hospital, Stockholm, Sweden; Department of Medicine, Division of Infectious Diseases, Karolinska Institutet Solna, Stockholm, Sweden
| | - Limei Zhu
- Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, China
| | - Jan-Willem Alffenaar
- University of Sydney, Faculty of Medicine and Health, School of Pharmacy, Sydney, Australia; Westmead Hospital, Sydney, Australia; Sydney Institute for Infectious Diseases, University of Sydney, Sydney, Australia
| | - Yi Hu
- Department of Epidemiology, School of Public Health and Key Laboratory of Public Health Safety, Fudan University, Shanghai, China.
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Zeng T, Tang X, Bai X, Xiong H. FGF19 Promotes the Proliferation and Insulin Secretion from Human Pancreatic β Cells Via the IRS1/GLUT4 Pathway. Exp Clin Endocrinol Diabetes 2024; 132:152-161. [PMID: 38513652 DOI: 10.1055/a-2250-7830] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/23/2024]
Abstract
BACKGROUND Type 2 diabetes mellitus (T2DM) is a commonly observed complication associated with obesity. The effect of fibroblast growth factor 19 (FGF19), a promising therapeutic agent for metabolic disorders, on pancreatic β cells in obesity-associated T2DM remains poorly understood. METHODS Human pancreatic β cells were cultured with high glucose (HG) and palmitic acid (PA), followed by treatment with FGF19. The cell proliferation, apoptosis, and insulin secretion were evaluated by CCK-8, qRT-PCR, ELISA, flow cytometry, and western blotting. The expression of the insulin receptor substrate (IRS)/glucose transporter (GLUT) pathway was evaluated. The interaction between FGF19 and IRS1 was predicted using the STRING database and verified by co-immunoprecipitation and immunofluorescence. The regulatory effects of the IRS1/GLUT4 pathway on human pancreatic β cells were assessed by overexpressing IRS1 and silencing IRS1 and GLUT4. RESULTS HG+PA treatment reduced the human pancreatic β cell proliferation and insulin secretion and promoted cell apoptosis. However, FGF19 treatment restored these alterations and significantly increased the expressions of IRS1, GLUT1, and GLUT4 in the IRS/GLUT pathway. Furthermore, FGF19 and IRS1 were found to interact. IRS1 overexpression partially promoted the proliferation of pancreatic β cells and insulin secretion through GLUT4. Additionally, the silencing of IRS1 or GLUT4 attenuated the therapeutic effects of FGF19. CONCLUSION In conclusion, FGF19 partly promoted the proliferation and insulin secretion of human pancreatic β cells and inhibited apoptosis by upregulating the IRS1/GLUT4 pathway. These findings establish a theoretical framework for the clinical utilization of FGF19 in the treatment of obesity-associated T2DM.
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Affiliation(s)
- Ting Zeng
- Department of Endocrinology, Longhua District People's Hospital of Shenzhen, Shenzhen, China
| | - Xi Tang
- Department of Cardiology, Longhua District People's Hospital of Shenzhen, Shenzhen, China
| | - Xiaosu Bai
- Department of Endocrinology, Longhua District People's Hospital of Shenzhen, Shenzhen, China
| | - Haiyan Xiong
- Department of Nursing, Longhua District People's Hospital of Shenzhen, Shenzhen, China
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10
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Wang S, Xiong H, Chang Q, Zhuang X, Wu Y, Wang X, Wu C, Fu Z. Epon Post Embedding Correlative Light and Electron Microscopy. J Vis Exp 2024. [PMID: 38284521 DOI: 10.3791/66141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2024] Open
Abstract
Correlative light and electron microscopy (CLEM) is a comprehensive microscopy that combines the localization information provided by fluorescence microscopy (FM) and the context of cellular ultrastructure acquired by electron microscopy (EM). CLEM is a trade-off between fluorescence and ultrastructure, and usually, ultrastructure compromises fluorescence. Compared with other hydrophilic embedding resins, such as glycidyl methacrylate, HM20, or K4M, Epon is superior in ultrastructure preservation and sectioning properties. Previously, we had demonstrated that mEosEM can survive osmium tetroxide fixation and Epon embedding. Using mEosEM, we achieved, for the first time, Epon post embedding CLEM, which maintains the fluorescence and the ultrastructure simultaneously. Here, we provide step-by-step details about the EM sample preparation, the FM imaging, the EM imaging, and the image alignment. We also improve the procedures for identifying the same cell imaged by FM imaging during the EM imaging and detail the registration between the FM and EM images. We believe one can easily achieve Epon post embedding correlative light and electron microscopy following this new protocol in traditional EM facilities.
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Affiliation(s)
- Shuyuan Wang
- Public Technology Service Center, Fujian Medical University
| | - Haiyan Xiong
- Public Technology Service Center, Fujian Medical University; The School of Pharmacy, Fujian Medical University
| | - Qiyuan Chang
- Public Technology Service Center, Fujian Medical University; The School of Basic Medical Sciences, Fujian Medical University
| | - Xudong Zhuang
- College of Clinical Medicine for Obstetrics & Gynecology and Pediatrics, Fujian Medical University; Medical Research Center, Fujian Maternity and Child Health Hospital; NHC Key Laboratory of Technical Evaluation of Fertility Regulation for Non-human Primate, Fujian Maternity and Child Health Hospital
| | - Yaochen Wu
- Public Technology Service Center, Fujian Medical University; The School of Basic Medical Sciences, Fujian Medical University
| | - Xinrui Wang
- College of Clinical Medicine for Obstetrics & Gynecology and Pediatrics, Fujian Medical University; Medical Research Center, Fujian Maternity and Child Health Hospital; NHC Key Laboratory of Technical Evaluation of Fertility Regulation for Non-human Primate, Fujian Maternity and Child Health Hospital;
| | - Congxian Wu
- Public Technology Service Center, Fujian Medical University;
| | - Zhifei Fu
- Public Technology Service Center, Fujian Medical University; Institute of Neuroscience, Fujian Medical University; Fujian Key Laboratory of Molecular Neurology, Fujian Medical University;
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11
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Yao Y, Xiang D, Wu N, Wang Y, Chen Y, Yuan Y, Ye Y, Hu D, Zheng C, Yan Y, Lv Q, Li X, Chen G, Hu H, Xiong H, Peng S, Xiong L. Control of rice ratooning ability by a nucleoredoxin that inhibits histidine kinase dimerization to attenuate cytokinin signaling in axillary buds. Mol Plant 2023; 16:1911-1926. [PMID: 37853691 DOI: 10.1016/j.molp.2023.10.009] [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: 06/25/2023] [Revised: 09/24/2023] [Accepted: 10/15/2023] [Indexed: 10/20/2023]
Abstract
Rice ratooning, the fast outgrowth of dormant buds on stubble, is an important cropping practice in rice production. However, the low ratooning ability (RA) of most rice varieties restricts the application of this cost-efficient system, and the genetic basis of RA remains unknown. In this study, we dissected the genetic architecture of RA by a genome-wide association study in a natural rice population. Rice ratooning ability 3 (RRA3), encoding a hitherto not characterized nucleoredoxin involved in reduction of disulfide bonds, was identified as the causal gene of a major locus controlling RA. Overexpression of RRA3 in rice significantly accelerated leaf senescence and reduced RA, whereas knockout of RRA3 significantly delayed leaf senescence and increased RA and ratoon yield. We demonstrated that RRA3 interacts with Oryza sativa histidine kinase 4 (OHK4), a cytokinin receptor, and inhibits the dimerization of OHK4 through disulfide bond reduction. This inhibition ultimately led to decreased cytokinin signaling and reduced RA. In addition, variations in the RRA3 promoter were identified to be associated with RA. Introgression of a superior haplotype with weak expression of RRA3 into the elite rice variety Guichao 2 significantly increased RA and ratoon yield by 23.8%. Collectively, this study not only uncovers an undocumented regulatory mechanism of cytokinin signaling through de-dimerization of a histidine kinase receptor-but also provides an eximious gene with promising value for ratoon rice breeding.
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Affiliation(s)
- Yilong Yao
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, and National Center of Plant Gene Research (Wuhan), Huazhong Agricultural University, Wuhan 430070, China
| | - Denghao Xiang
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, and National Center of Plant Gene Research (Wuhan), Huazhong Agricultural University, Wuhan 430070, China
| | - Nai Wu
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, and National Center of Plant Gene Research (Wuhan), Huazhong Agricultural University, Wuhan 430070, China
| | - Yao Wang
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, and National Center of Plant Gene Research (Wuhan), Huazhong Agricultural University, Wuhan 430070, China
| | - Yu Chen
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, and National Center of Plant Gene Research (Wuhan), Huazhong Agricultural University, Wuhan 430070, China
| | - Yang Yuan
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, and National Center of Plant Gene Research (Wuhan), Huazhong Agricultural University, Wuhan 430070, China
| | - Ying Ye
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, and National Center of Plant Gene Research (Wuhan), Huazhong Agricultural University, Wuhan 430070, China
| | - Dan Hu
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, and National Center of Plant Gene Research (Wuhan), Huazhong Agricultural University, Wuhan 430070, China
| | - Chang Zheng
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, and National Center of Plant Gene Research (Wuhan), Huazhong Agricultural University, Wuhan 430070, China
| | - Yu Yan
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, and National Center of Plant Gene Research (Wuhan), Huazhong Agricultural University, Wuhan 430070, China
| | - Qingya Lv
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, and National Center of Plant Gene Research (Wuhan), Huazhong Agricultural University, Wuhan 430070, China
| | - Xiaokai Li
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, and National Center of Plant Gene Research (Wuhan), Huazhong Agricultural University, Wuhan 430070, China
| | - Guoxing Chen
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, and National Center of Plant Gene Research (Wuhan), Huazhong Agricultural University, Wuhan 430070, China
| | - Honghong Hu
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, and National Center of Plant Gene Research (Wuhan), Huazhong Agricultural University, Wuhan 430070, China
| | - Haiyan Xiong
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, and National Center of Plant Gene Research (Wuhan), Huazhong Agricultural University, Wuhan 430070, China
| | - Shaobing Peng
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, and National Center of Plant Gene Research (Wuhan), Huazhong Agricultural University, Wuhan 430070, China
| | - Lizhong Xiong
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, and National Center of Plant Gene Research (Wuhan), Huazhong Agricultural University, Wuhan 430070, China.
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12
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Zhang MJ, Lin L, Wang WH, Li WH, Wei CJ, Xie H, Zhang QP, Wu Y, Xiong H, Zhou SZ, Yang B, Bao XH. [Clinical and imaging features of acute encephalopathy with biphasic seizures and late reduced diffusion in children]. Zhonghua Er Ke Za Zhi 2023; 61:989-994. [PMID: 37899338 DOI: 10.3760/cma.j.cn112140-20230809-00094] [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: 10/31/2023]
Abstract
Objective: To explore the clinical and imaging features of acute encephalopathy with biphasic seizures and late reduced diffusion(AESD) in children. Methods: For the case series study, 21 children with AESD from Peking University First Hospital, Provincial Children's Hospital Affiliated to Anhui Medical University, Children's Hospital of Fudan University, and Shanxi Children's Hospital who were diagnosed and treated from October 2021 to July 2023 were selected. Clinical data were collected to summarize their clinical information, imaging, and laboratory tests, as well as treatment and prognostic characteristics. Descriptive statistical analysis was applicated. Results: Of the 21 cases with AESD, 11 were males and 10 were females, with the age of onset of 2 years and 6 months (1 year and 7 months, 3 years and 6 months). Of the 21 cases, 18 were typical cases with biphasic seizures. All typical cases had early seizures within 24 hours before or after fever onset. Among them, 16 cases had generalized seizures, 2 cases had focal seizures, and 7 cases reached the status epilepticus. Of the 21 cases, 3 atypical cases had late seizures in biphasic only. The late seizures in the 21 cases occurred on days 3 to 9. The types of late seizures included focal seizures in 12 cases, generalized seizures in 6 cases, and both focal and generalized seizures in 3 cases. Diffusion-weighted imaging (DWI) test on days 3 to 11 showed reduced diffusion of subcortical white matter which was named "bright tree sign" in all cases. The diffuse cerebral atrophy predominantly presented in the front-parietal-temporal lobes was found in 19 cases between day 12 and 3 months after the onset of the disease. Among 21 cases, 20 had been misdiagnosed as autoimmune encephalitis, central nervous system infection, febrile convulsions, posterior reversible encephalopathy syndrome, acute disseminated encephalomyelitis, and hemiconvulsion-hemiplegia-epilepsy syndrome. All the cases received high-dose gammaglobulin and methylprednisolone pulse therapy with poor therapeutic effect. By July 2023, 18 cases were under follow-up. Among them, 17 cases were left with varying degrees of neurologic sequelae, including 11 cases with post-encephalopathic epilepsy; 1 recovered completely. Conclusions: AESD is characterized by biphasic seizures clinically and "bright tree sign" on DWI images. Symptomatic and supportive treatments are recommended. The immunotherapy is ineffective. The prognosis of AESD is poor, with a high incidence of neurological sequelae and a low mortality.
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Affiliation(s)
- M J Zhang
- Department of Pediatrics, Peking University First Hospital, Beijing 100034, China
| | - L Lin
- Department of Neurology, Provincial Children's Hospital Affiliated to Anhui Medical University, Hefei 230051, China
| | - W H Wang
- Department of Neurology, Shanxi Children's Hospital, Taiyuan 030013, China
| | - W H Li
- Department of Neurology, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - C J Wei
- Department of Pediatrics, Peking University First Hospital, Beijing 100034, China
| | - H Xie
- Department of Pediatrics, Peking University First Hospital, Beijing 100034, China
| | - Q P Zhang
- Department of Pediatrics, Peking University First Hospital, Beijing 100034, China
| | - Y Wu
- Department of Pediatrics, Peking University First Hospital, Beijing 100034, China
| | - H Xiong
- Department of Pediatrics, Peking University First Hospital, Beijing 100034, China
| | - S Z Zhou
- Department of Neurology, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - B Yang
- Department of Neurology, Provincial Children's Hospital Affiliated to Anhui Medical University, Hefei 230051, China
| | - X H Bao
- Department of Pediatrics, Peking University First Hospital, Beijing 100034, China
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13
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Wu W, Wu W, Gong CX, Liang Y, Zhu M, Xiong H, Fu JF. [Summary of the 22 nd National Pediatric Endocrine and Genetic Metabolic Diseases Conference]. Zhonghua Er Ke Za Zhi 2023; 61:958-959. [PMID: 37803871 DOI: 10.3760/cma.j.cn112140-20230804-00077] [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: 10/08/2023]
Affiliation(s)
- W Wu
- Department of Endocrinology, Children's Hospital, Zhejiang University School of Medicine, Hangzhou 310052, China
| | - W Wu
- Department of Pediatrics, Tongji Hospital, Tongji Medical College of Huazhong University of Science and Technology, Wuhan 430030, China
| | - C X Gong
- Department of Endocrinology, Genetics and Metabolism, Beijing Children's Hospital, Capital Medical University, Beijing 100045, China
| | - Y Liang
- Department of Pediatrics, Tongji Hospital, Tongji Medical College of Huazhong University of Science and Technology, Wuhan 430030, China
| | - M Zhu
- Department of Endocrinology, Children's Hospital of Chongqing Medical University, Chongqing 400014, China
| | - H Xiong
- Department of Pediatrics, Peking University First Hospital, Beijing 100034, China
| | - J F Fu
- Department of Endocrinology, Children's Hospital, Zhejiang University School of Medicine, Hangzhou 310052, China
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14
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Xiong H, Shi L. Effect of weekend admission on mortality risk in patients with sepsis and septic shock: A systematic review and meta-analysis. Scott Med J 2023; 68:91-100. [PMID: 37489119 DOI: 10.1177/00369330231189887] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/26/2023]
Abstract
BACKGROUND There is an ongoing debate if weekend admissions of critically ill patients are associated with higher mortality rates. The current review aimed to specifically assess this effect in sepsis and septic shock patients by comparing mortality rates with weekend versus weekday admissions. METHODS PubMed, CENTRAL, Scopus, Web of Science, and Embase were searched up to 20th February 2023 with an additional search of Google Scholar for gray literature. RESULTS Nine studies were eligible. Meta-analysis of all nine studies with data from 1,134,417 patients demonstrated that sepsis or septic shock patients admitted on weekends don't have higher mortality as compared to those admitted on weekdays (OR: 1.04; 95% CI: 1.00, 1.09; p = 0.05; I2 = 93%). On subgroup analysis based on sample size (>2000 or <2000 patients) and timing of mortality, we noted no difference in the significance of the results. However, there was a small significant increased risk of mortality with weekend admission noted in studies on the Asian population and including septic shock patients. CONCLUSION Weekend admission does not have an adverse impact on mortality rates of sepsis and septic shock patients. Results must be interpreted with caution owing to high interstudy heterogeneity and variation in confounders adjusted by individual studies.
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Affiliation(s)
- Haiyan Xiong
- Department of Infectious Disease, Huzhou Central Hospital, Affiliated Central Hospital Huzhou University, Huzhou City, Zhejiang Province, China
| | - Linlin Shi
- Department of Infectious Disease, Huzhou Central Hospital, Affiliated Central Hospital Huzhou University, Huzhou City, Zhejiang Province, China
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15
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Li W, Yan J, Zhang Y, Zhang F, Guan Z, Yao Y, Chang Y, Tu H, Li X, Wang H, Xiong H, Lai X, Yin P, Xiong L. Serine protease NAL1 exerts pleiotropic functions through degradation of TOPLESS-related corepressor in rice. Nat Plants 2023; 9:1130-1142. [PMID: 37349549 DOI: 10.1038/s41477-023-01449-2] [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] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Accepted: 05/24/2023] [Indexed: 06/24/2023]
Abstract
NARROW LEAF 1 (NAL1) is a breeding-valuable pleiotropic gene that affects multiple agronomic traits in rice, although the molecular mechanism is largely unclear. Here, we report that NAL1 is a serine protease and displays a novel hexameric structure consisting of two ATP-mediated doughnut-shaped trimeric complexes. Moreover, we identified TOPLESS-related corepressor OsTPR2 involved in multiple growth and development processes as the substrate of NAL1. We found that NAL1 degraded OsTPR2, thus modulating the expression of downstream genes related to hormone signalling pathways, eventually achieving its pleiotropic physiological function. An elite allele, NAL1A, which may have originated from wild rice, could increase grain yield. Furthermore, the NAL1 homologues in different crops have a similar pleiotropic function to NAL1. Our study uncovers a NAL1-OsTPR2 regulatory module and provides gene resources for the design of high-yield crops.
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Affiliation(s)
- Wenjing Li
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, China
| | - Junjie Yan
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, China
| | - Yu Zhang
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, China
| | - Fei Zhang
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, China
| | - Zeyuan Guan
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, China
| | - Yilong Yao
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, China
| | - Yu Chang
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, China
| | - Haifu Tu
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, China
| | - Xiaokai Li
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, China
| | - Huaijun Wang
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, China
| | - Haiyan Xiong
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, China
| | - Xuelei Lai
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, China
| | - Ping Yin
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, China
| | - Lizhong Xiong
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, China.
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Song Z, Xiong H, Meng X, Ma Q, Wei Y, Li Y, Liu J, Liang M, Xu H. Dietary Cholesterol Supplementation Inhibits the Steroid Biosynthesis but Does Not Affect the Cholesterol Transport in Two Marine Teleosts: A Hepatic Transcriptome Study. Aquac Nutr 2023; 2023:2308669. [PMID: 37312679 PMCID: PMC10260315 DOI: 10.1155/2023/2308669] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Revised: 05/09/2023] [Accepted: 05/26/2023] [Indexed: 06/15/2023]
Abstract
Cholesterol has been used as additive in fish feeds due to the reduced use of fish meal and fish oil. In order to evaluate the effects of dietary cholesterol supplementation (D-CHO-S) on fish physiology, a liver transcriptome analysis was performed following a feeding experiment on turbot and tiger puffer with different levels of dietary cholesterol. The control diet contained 30% fish meal (0% fish oil) without cholesterol supplementation, while the treatment diet was supplemented with 1.0% cholesterol (CHO-1.0). A total of 722 and 581 differentially expressed genes (DEG) between the dietary groups were observed in turbot and tiger puffer, respectively. These DEG were primarily enriched in signaling pathways related to steroid synthesis and lipid metabolism. In general, D-CHO-S downregulated the steroid synthesis in both turbot and tiger puffer. Msmo1, lss, dhcr24, and nsdhl might play key roles in the steroid synthesis in these two fish species. Gene expressions related to cholesterol transport (npc1l1, abca1, abcg1, abcg2, abcg5, abcg8, abcb11a, and abcb11b) in the liver and intestine were also extensively investigated by qRT-PCR. However, the results suggest that D-CHO-S rarely affected the cholesterol transport in both species. The protein-protein interaction (PPI) network constructed on steroid biosynthesis-related DEG showed that in turbot, Msmo1, Lss, Nsdhl, Ebp, Hsd17b7, Fdft1, and Dhcr7 had high intermediary centrality in the dietary regulation of steroid synthesis. In conclusion, in both turbot and tiger puffer, the supplementation of dietary cholesterol inhibits the steroid metabolism but does not affect the cholesterol transport.
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Affiliation(s)
- Ziling Song
- College of Fisheries and Life Sciences, Shanghai Ocean University, 999 Huchenghuan Road, Shanghai 201306, China
- Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, 106 Nanjing Road, Qingdao 266071, China
| | - Haiyan Xiong
- Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, 106 Nanjing Road, Qingdao 266071, China
| | - Xiaoxue Meng
- College of Fisheries and Life Sciences, Shanghai Ocean University, 999 Huchenghuan Road, Shanghai 201306, China
- Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, 106 Nanjing Road, Qingdao 266071, China
| | - Qiang Ma
- Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, 106 Nanjing Road, Qingdao 266071, China
| | - Yuliang Wei
- Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, 106 Nanjing Road, Qingdao 266071, China
| | - Yanlu Li
- Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, 106 Nanjing Road, Qingdao 266071, China
| | - Jian Liu
- Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, 106 Nanjing Road, Qingdao 266071, China
| | - Mengqing Liang
- Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, 106 Nanjing Road, Qingdao 266071, China
| | - Houguo Xu
- Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, 106 Nanjing Road, Qingdao 266071, China
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Zhu Y, Zhu L, Davies Forsman L, Paues J, Werngren J, Niward K, Schön T, Bruchfeld J, Xiong H, Alffenaar JW, Hu Y. Population Pharmacokinetics and Dose Evaluation of Cycloserine among Patients with Multidrug-Resistant Tuberculosis under Standardized Treatment Regimens. Antimicrob Agents Chemother 2023; 67:e0170022. [PMID: 37097151 PMCID: PMC10190270 DOI: 10.1128/aac.01700-22] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Accepted: 03/23/2023] [Indexed: 04/26/2023] Open
Abstract
Although cycloserine is a recommended drug for the treatment of multidrug-resistant tuberculosis (MDR-TB) according to World Health Organization (WHO), few studies have reported on pharmacokinetics (PK) and/or pharmacodynamics (PD) data of cycloserine in patients with standardized MDR-TB treatment. This study aimed to estimate the population PK parameters for cycloserine and to identify clinically relevant PK/PD thresholds, as well as to evaluate the current recommended dosage. Data from a large cohort with full PK curves was used to develop a population PK model. This model was used to estimate drug exposure in patients with MDR-TB from a multicentre prospective study in China. The classification and regression tree was used to identify the clinically relevant PK/PD thresholds. Probability of target attainment was analyzed to evaluate the currently recommended dosing strategy. Cycloserine was best described by a two-compartment disposition model. A percentage of time concentration above MICs (T>MIC) of 30% and a ratio of area under drug concentration-time curve (AUC0-24h) over MIC of 36 were the valid predictors for 6-month sputum culture conversion and final treatment outcome. Simulations showed that with WHO-recommended doses (500 mg and 750 mg for patients weighing <45 kg and ≥45 kg), the probability of target attainment exceeded 90% at MIC ≤16 mg/L in MGIT for both T>MIC of 30% and AUC0-24h/MIC of 36. New clinically relevant PK/PD thresholds for cycloserine were identified in patients with standardized MDR-TB treatment. WHO-recommended doses were considered adequate for the MGIT MIC distribution in our cohort of Chinese patients with MDR-TB.
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Affiliation(s)
- Yue Zhu
- Department of Epidemiology, School of Public Health and Key Laboratory of Public Health Safety, Fudan University, Shanghai, China
| | - Limei Zhu
- Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, China
| | - Lina Davies Forsman
- Department of Infectious Diseases, Karolinska University Hospital, Stockholm, Sweden
- Department of Medicine, Division of Infectious Diseases, Karolinska Institutet, Solna, Stockholm, Sweden
| | - Jakob Paues
- Department of Biomedical and Clinical Sciences, Linköping, University, Linköping, Sweden
- Department of Infectious Diseases, Linköping University Hospital, Linköping, Sweden
| | - Jim Werngren
- Department of Microbiology, Public Health Agency of Sweden, Stockholm, Sweden
| | - Katarina Niward
- Department of Biomedical and Clinical Sciences, Linköping, University, Linköping, Sweden
- Department of Infectious Diseases, Linköping University Hospital, Linköping, Sweden
| | - Thomas Schön
- Department of Biomedical and Clinical Sciences, Linköping, University, Linköping, Sweden
- Department of Infectious Diseases, Linköping University Hospital, Linköping, Sweden
- Department of Infectious Diseases, Kalmar County Hospital, Kalmar, Linköping University, Sweden
| | - Judith Bruchfeld
- Department of Infectious Diseases, Karolinska University Hospital, Stockholm, Sweden
- Department of Medicine, Division of Infectious Diseases, Karolinska Institutet, Solna, Stockholm, Sweden
| | - Haiyan Xiong
- Department of Epidemiology, School of Public Health and Key Laboratory of Public Health Safety, Fudan University, Shanghai, China
| | - Jan-Willem Alffenaar
- Faculty of Medicine and Health, School of Pharmacy, University of Sydney, Sydney, Australia
- Westmead Hospital, Sydney, Australia
- Sydney Institute for Infectious Diseases, University of Sydney, Sydney, Australia
| | - Yi Hu
- Department of Epidemiology, School of Public Health and Key Laboratory of Public Health Safety, Fudan University, Shanghai, China
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18
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Zhou Z, Yi H, Zhou Q, Wang L, Zhu Y, Wang W, Liu Z, Xiong H. Evolution and epidemic success of Mycobacterium tuberculosis in eastern China: evidence from a prospective study. BMC Genomics 2023; 24:241. [PMID: 37147590 PMCID: PMC10161668 DOI: 10.1186/s12864-023-09312-6] [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: 01/10/2023] [Accepted: 04/14/2023] [Indexed: 05/07/2023] Open
Abstract
BACKGROUND Lineage distribution of Mycobacterium tuberculosis (Mtb) isolates is strongly associated with geographically distinct human populations, and its transmission can be further impacted by the bacterial genome. However, the epidemic success of Mtb isolates at an individual level was unknown in eastern China. Knowledge regarding the emergence and transmission of Mtb isolates as well as relevant factors may offer a new solution to curb the spread of the disease. Thus, this study aims to reveal the evolution and epidemic success of Mtb isolates in eastern China. RESULTS Of initial 1040 isolates, 997 were retained after removing duplicates and those with insufficient sequencing depth. Of the final samples, 733 (73.52%) were from Zhejiang Province, and 264 (26.48%) were from Shanghai City. Lineage 2 and lineage 4 accounted for 80.44% and 19.56%, with common ancestors dating around 7017 years ago and 6882 years ago, respectively. Sub-lineage L2.2 (80.34%) contributed the majority of total isolates, followed by L4.4 (8.93%) and L4.5 (8.43%). Additionally, 51 (5.12%) isolates were identified to be multidrug-resistant (MDR), of which 21 (29.17%) were pre-extensively drug-resistant (pre-XDR). One clade harboring katG S315T mutation may date back to 65 years ago and subsequently acquired mutations conferring resistance to another five antibiotic drugs. The prevalence of compensatory mutation was the highest in pre-XDR isolates (76.19%), followed by MDR isolates (47.06%) and other drug-resistant isolates (20.60%). Time-scaled haplotypic density analyses suggested comparable success indices between lineage 2 and lineage 4 (P = 0.306), and drug resistance did not significantly promote the transmission of Mtb isolates (P = 0.340). But for pre-XDR isolates, we found a higher success index in those with compensatory mutations (P = 0.025). Mutations under positive selection were found in genes associated with resistance to second-line injectables (whiB6) and drug tolerance (prpR) in both lineage 2 and lineage 4. CONCLUSIONS Our study demonstrates the population expansion of lineage 2 and lineage 4 in eastern China, with comparable transmission capacity, while accumulation of resistance mutations does not necessarily facilitate the success of Mtb isolates. Compensatory mutations usually accompany drug resistance and significantly contribute to the epidemiological transmission of pre-XDR strains. Prospective molecular surveillance is required to further monitor the emergence and spread of pre-XDR/XDR strains in eastern China.
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Affiliation(s)
- Zonglei Zhou
- School of Public Health, Fudan University, Shanghai, 200032, China
| | - Huaiming Yi
- Center for Disease Control and Prevention of Changshan County, 324200, Zhejiang, China
| | - Qingrong Zhou
- Center for Disease Control and Prevention of Jiangshan City, 324100, Zhejiang, China
| | - Luqi Wang
- School of Public Health, Fudan University, Shanghai, 200032, China
| | - Yue Zhu
- School of Public Health, Fudan University, Shanghai, 200032, China
| | - Weibing Wang
- School of Public Health, Fudan University, Shanghai, 200032, China.
- Key Laboratory of Public Health Safety of Ministry of Education, Fudan University, Shanghai, 200032, China.
| | - Zhengwe Liu
- Institute of Tuberculosis Control, Zhejiang Provincial Center for Disease Control and Prevention, 310051, Zhejiang, China.
| | - Haiyan Xiong
- School of Public Health, Fudan University, Shanghai, 200032, China
- Key Laboratory of Public Health Safety of Ministry of Education, Fudan University, Shanghai, 200032, China
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Tan DD, Liu YD, Fan YB, Wei CJ, Song DY, Yang HP, Pan H, Cui WL, Mao SS, Xu XP, Yu XL, Cui B, Xiong H. [Clinical and genetic characteristics of 9 rare cases with coexistence of dual genetic diagnoses]. Zhonghua Er Ke Za Zhi 2023; 61:345-350. [PMID: 37011981 DOI: 10.3760/cma.j.cn112140-20220922-00827] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Subscribe] [Scholar Register] [Indexed: 04/05/2023]
Abstract
Objective: To analyze the clinical and genetic characteristics of pediatric patients with dual genetic diagnoses (DGD). Methods: Clinical and genetic data of pediatric patients with DGD from January 2021 to February 2022 in Peking University First Hospital were collected and analyzed retrospectively. Results: Among the 9 children, 6 were boys and 3 were girls. The age of last visit or follow-up was 5.0 (2.7,6.8) years. The main clinical manifestations included motor retardation, mental retardation, multiple malformations, and skeletal deformity. Cases 1-4 were all all boys, showed myopathic gait, poor running and jumping, and significantly increased level of serum creatine kinase. Disease-causing variations in Duchenne muscular dystrophy (DMD) gene were confirmed by genetic testing. The 4 children were diagnosed with DMD or Becker muscular dystrophy combined with a second genetic disease, including hypertrophic osteoarthropathy, spinal muscular atrophy, fragile X syndrome, and cerebral cavernous malformations type 3, respectively. Cases 5-9 were clinically and genetically diagnosed as COL9A1 gene-related multiple epiphyseal dysplasia type 6 combined with NF1 gene-related neurofibromatosis type 1, COL6A3 gene-related Bethlem myopathy with WNT1 gene-related osteogenesis imperfecta type XV, Turner syndrome (45, X0/46, XX chimera) with TH gene-related Segawa syndrome, Chromosome 22q11.2 microduplication syndrome with DYNC1H1 gene-related autosomal dominant lower extremity-predominant spinal muscular atrophy-1, and ANKRD11 gene-related KBG syndrome combined with IRF2BPL gene-related neurodevelopmental disorder with regression, abnormal movement, language loss and epilepsy. DMD was the most common, and there were 6 autosomal dominant diseases caused by de novo heterozygous pathogenic variations. Conclusions: Pediatric patients with coexistence of double genetic diagnoses show complex phenotypes. When the clinical manifestations and progression are not fully consistent with the diagnosed rare genetic disease, a second rare genetic disease should be considered, and autosomal dominant diseases caused by de novo heterozygous pathogenic variation should be paid attention to. Trio-based whole-exome sequencing combining a variety of molecular genetic tests would be helpful for precise diagnosis.
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Affiliation(s)
- D D Tan
- Department of Pediatrics, Peking University First Hospital, Beijing 100034, China
| | - Y D Liu
- Department of Pediatrics, Peking University First Hospital, Beijing 100034, China
| | - Y B Fan
- Department of Pediatrics, Peking University First Hospital, Beijing 100034, China
| | - C J Wei
- Department of Pediatrics, Peking University First Hospital, Beijing 100034, China
| | - D Y Song
- Department of Pediatrics, Peking University First Hospital, Beijing 100034, China
| | - H P Yang
- Department of Pediatrics, Peking University First Hospital, Beijing 100034, China
| | - H Pan
- Department of Central Laboratory, Peking University First Hospital, Beijing 100034, China
| | - W L Cui
- Department of Rehabilitation, Children's Hospital Affiliated to Zhengzhou University, Henan Children's Hospital, Zhengzhou Children's Hospital, Zhengzhou 450053, China
| | - S S Mao
- Department of Neurology, the Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou 310052, China
| | - X P Xu
- Department of Pediatrics, the First Affiliated Hospital of Harbin Medical University, Harbin 150001, China
| | - X L Yu
- Department of Neurology, Tianjin Children's Hospital, Tianjin 300134, China
| | - B Cui
- Department of Rehabilitation Medicine, Third Affiliated Hospital of Zhengzhou University, Henan Maternal and Child Health Care Hospital, Zhengzhou 450052, China
| | - H Xiong
- Department of Pediatrics, Peking University First Hospital, Beijing 100034, China
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20
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Bai Q, Chen Y, Xiao X, Chang H, Xin B, Jia L, Li J, Wang Z, Yu C, Xiong H, Zhou X. 203P MET gene copy number heterogeneity in non-small cell lung cancer patients resistant to EGFR-TKIs. J Thorac Oncol 2023. [DOI: 10.1016/s1556-0864(23)00456-2] [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: 04/03/2023]
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21
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Wu Y, Xiong H. [Early recognition, diagnosis and treatment of spinal muscular atrophy]. Zhonghua Er Ke Za Zhi 2023; 61:286-288. [PMID: 36849362 DOI: 10.3760/cma.j.cn112140-20221116-00976] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 03/01/2023]
Affiliation(s)
- Y Wu
- Department of Pediatrics, Peking University First Hospital, Beijing 100034, China
| | - H Xiong
- Department of Pediatrics, Peking University First Hospital, Beijing 100034, China
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22
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Fichman Y, Xiong H, Sengupta S, Morrow J, Loog H, Azad RK, Hibberd JM, Liscum E, Mittler R. Phytochrome B regulates reactive oxygen signaling during abiotic and biotic stress in plants. New Phytol 2023; 237:1711-1727. [PMID: 36401805 DOI: 10.1111/nph.18626] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [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: 09/30/2022] [Accepted: 11/11/2022] [Indexed: 06/16/2023]
Abstract
Reactive oxygen species (ROS) and the photoreceptor protein phytochrome B (phyB) play a key role in plant acclimation to stress. However, how phyB that primarily functions in the nuclei impacts ROS signaling mediated by respiratory burst oxidase homolog (RBOH) proteins that reside on the plasma membrane, during stress, is unknown. Arabidopsis thaliana and Oryza sativa mutants, RNA-Seq, bioinformatics, biochemistry, molecular biology, and whole-plant ROS imaging were used to address this question. Here, we reveal that phyB and RBOHs function as part of a key regulatory module that controls apoplastic ROS production, stress-response transcript expression, and plant acclimation in response to excess light stress. We further show that phyB can regulate ROS production during stress even if it is restricted to the cytosol and that phyB, respiratory burst oxidase protein D (RBOHD), and respiratory burst oxidase protein F (RBOHF) coregulate thousands of transcripts in response to light stress. Surprisingly, we found that phyB is also required for ROS accumulation in response to heat, wounding, cold, and bacterial infection. Our findings reveal that phyB plays a canonical role in plant responses to biotic and abiotic stresses, regulating apoplastic ROS production, possibly while at the cytosol, and that phyB and RBOHD/RBOHF function in the same regulatory pathway.
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Affiliation(s)
- Yosef Fichman
- Division of Plant Sciences & Technology, College of Agricultural, Food and Natural Resources, Christopher S. Bond Life Sciences Center, University of Missouri, Columbia, MO, 65211-7310, USA
- Interdisciplinary Plant Group, University of Missouri, Columbia, MO, 65211-7310, USA
| | - Haiyan Xiong
- Department of Plant Sciences, University of Cambridge, Cambridge, CB2 3EA, UK
| | - Soham Sengupta
- Department of Biological Sciences, College of Science, University of North Texas, Denton, TX, 76203-5017, USA
| | - Johanna Morrow
- Division of Biological Sciences, College of Arts & Sciences, University of Missouri, Columbia, MO, 65211-7400, USA
- Department of Biology and Environmental Sciences, Westminster College, 501 Westminster Ave, Fulton, MO, 65251, USA
| | - Hailey Loog
- Division of Plant Sciences & Technology, College of Agricultural, Food and Natural Resources, Christopher S. Bond Life Sciences Center, University of Missouri, Columbia, MO, 65211-7310, USA
- Interdisciplinary Plant Group, University of Missouri, Columbia, MO, 65211-7310, USA
| | - Rajeev K Azad
- Department of Biological Sciences, College of Science, University of North Texas, Denton, TX, 76203-5017, USA
- Department of Mathematics, College of Science, University of North Texas, Denton, TX, 76203-5017, USA
| | - Julian M Hibberd
- Department of Plant Sciences, University of Cambridge, Cambridge, CB2 3EA, UK
| | - Emmanuel Liscum
- Interdisciplinary Plant Group, University of Missouri, Columbia, MO, 65211-7310, USA
- Division of Biological Sciences, College of Arts & Sciences, University of Missouri, Columbia, MO, 65211-7400, USA
| | - Ron Mittler
- Division of Plant Sciences & Technology, College of Agricultural, Food and Natural Resources, Christopher S. Bond Life Sciences Center, University of Missouri, Columbia, MO, 65211-7310, USA
- Interdisciplinary Plant Group, University of Missouri, Columbia, MO, 65211-7310, USA
- Department of Surgery, Christopher S. Bond Life Sciences Center, University of Missouri School of Medicine, University of Missouri, Columbia, MO, 65211-7310, USA
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23
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Fichman Y, Xiong H, Sengupta S, Morrow J, Loog H, Azad RK, Hibberd JM, Liscum E, Mittler R. Phytochrome B regulates reactive oxygen signaling during abiotic and biotic stress in plants. New Phytol 2023. [PMID: 36401805 DOI: 10.1101/2021.11.29.470478] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
Reactive oxygen species (ROS) and the photoreceptor protein phytochrome B (phyB) play a key role in plant acclimation to stress. However, how phyB that primarily functions in the nuclei impacts ROS signaling mediated by respiratory burst oxidase homolog (RBOH) proteins that reside on the plasma membrane, during stress, is unknown. Arabidopsis thaliana and Oryza sativa mutants, RNA-Seq, bioinformatics, biochemistry, molecular biology, and whole-plant ROS imaging were used to address this question. Here, we reveal that phyB and RBOHs function as part of a key regulatory module that controls apoplastic ROS production, stress-response transcript expression, and plant acclimation in response to excess light stress. We further show that phyB can regulate ROS production during stress even if it is restricted to the cytosol and that phyB, respiratory burst oxidase protein D (RBOHD), and respiratory burst oxidase protein F (RBOHF) coregulate thousands of transcripts in response to light stress. Surprisingly, we found that phyB is also required for ROS accumulation in response to heat, wounding, cold, and bacterial infection. Our findings reveal that phyB plays a canonical role in plant responses to biotic and abiotic stresses, regulating apoplastic ROS production, possibly while at the cytosol, and that phyB and RBOHD/RBOHF function in the same regulatory pathway.
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Affiliation(s)
- Yosef Fichman
- Division of Plant Sciences & Technology, College of Agricultural, Food and Natural Resources, Christopher S. Bond Life Sciences Center, University of Missouri, Columbia, MO, 65211-7310, USA
- Interdisciplinary Plant Group, University of Missouri, Columbia, MO, 65211-7310, USA
| | - Haiyan Xiong
- Department of Plant Sciences, University of Cambridge, Cambridge, CB2 3EA, UK
| | - Soham Sengupta
- Department of Biological Sciences, College of Science, University of North Texas, Denton, TX, 76203-5017, USA
| | - Johanna Morrow
- Division of Biological Sciences, College of Arts & Sciences, University of Missouri, Columbia, MO, 65211-7400, USA
- Department of Biology and Environmental Sciences, Westminster College, 501 Westminster Ave, Fulton, MO, 65251, USA
| | - Hailey Loog
- Division of Plant Sciences & Technology, College of Agricultural, Food and Natural Resources, Christopher S. Bond Life Sciences Center, University of Missouri, Columbia, MO, 65211-7310, USA
- Interdisciplinary Plant Group, University of Missouri, Columbia, MO, 65211-7310, USA
| | - Rajeev K Azad
- Department of Biological Sciences, College of Science, University of North Texas, Denton, TX, 76203-5017, USA
- Department of Mathematics, College of Science, University of North Texas, Denton, TX, 76203-5017, USA
| | - Julian M Hibberd
- Department of Plant Sciences, University of Cambridge, Cambridge, CB2 3EA, UK
| | - Emmanuel Liscum
- Interdisciplinary Plant Group, University of Missouri, Columbia, MO, 65211-7310, USA
- Division of Biological Sciences, College of Arts & Sciences, University of Missouri, Columbia, MO, 65211-7400, USA
| | - Ron Mittler
- Division of Plant Sciences & Technology, College of Agricultural, Food and Natural Resources, Christopher S. Bond Life Sciences Center, University of Missouri, Columbia, MO, 65211-7310, USA
- Interdisciplinary Plant Group, University of Missouri, Columbia, MO, 65211-7310, USA
- Department of Surgery, Christopher S. Bond Life Sciences Center, University of Missouri School of Medicine, University of Missouri, Columbia, MO, 65211-7310, USA
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24
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Wang J, Jia J, Wang D, Pan X, Xiong H, Li C, Jiang Y, Yan B. Zn 2+ loading as a critical contributor to the circ_0008553-mediated oxidative stress and inflammation in response to PM 2.5 exposures. J Environ Sci (China) 2023; 124:451-461. [PMID: 36182153 DOI: 10.1016/j.jes.2021.11.015] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Revised: 10/20/2021] [Accepted: 11/12/2021] [Indexed: 06/16/2023]
Abstract
Inflammation is a major adverse outcome induced by inhaled particulate matter with a diameter of ≤ 2.5 µm (PM2.5), and a critical trigger of most PM2.5 exposure-associated diseases. However, the key molecular events regulating the PM2.5-induced airway inflammation are yet to be elucidated. Considering the critical role of circular RNAs (circRNAs) in regulating inflammation, we predicted 11 circRNAs that may be involved in the PM2.5-induced airway inflammation using three previously reported miRNAs through the starBase website. A novel circRNA circ_0008553 was identified to be responsible for the PM2.5-activated inflammatory response in human bronchial epithelial cells (16HBE) via inducing oxidative stress. Using a combinatorial model PM2.5 library, we found that the synergistic effect of the insoluble core and loaded Zn2+ ions at environmentally relevant concentrations was the major contributor to the upregulation of circ_0008553 and subsequent induction of oxidative stress and inflammation in response to PM2.5 exposures. Our findings provided new insight into the intervention of PM2.5-induced adverse outcomes.
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Affiliation(s)
- Jingzhou Wang
- Institute of Environmental Research at Greater Bay Area, Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou 510006, China
| | - Jianbo Jia
- Institute of Environmental Research at Greater Bay Area, Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou 510006, China.
| | - Dujia Wang
- School of Environmental Science and Engineering, Shandong University, Qingdao 266237, China
| | - Xiujiao Pan
- Institute of Environmental Research at Greater Bay Area, Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou 510006, China
| | - Haiyan Xiong
- Institute of Environmental Research at Greater Bay Area, Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou 510006, China
| | - Chengjun Li
- Institute of Environmental Research at Greater Bay Area, Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou 510006, China
| | - Yiguo Jiang
- Institute for Chemical Carcinogenesis, Guangzhou Medical University, Guangzhou 511436, China.
| | - Bing Yan
- Institute of Environmental Research at Greater Bay Area, Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou 510006, China; School of Environmental Science and Engineering, Shandong University, Qingdao 266237, China.
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25
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Liao KY, Liu Y, Xiong H, Chen XM, Zhang XW, Huang CL. The efficacy and safety of triplet regimens based on pomalidomide and dexamethasone for treatment of relapsed/refractory multiple myeloma: a systematic review and meta-analysis. Eur Rev Med Pharmacol Sci 2022; 26:8087-8097. [PMID: 36394758 DOI: 10.26355/eurrev_202211_30162] [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] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
OBJECTIVE Triplet regimens based on pomalidomide and dexamethasone have been applied to treat relapsed/refractory multiple myeloma, but the safety and efficacy are not yet very clear. This meta-analysis aimed at comparing the safety and efficacy of different triplet therapies and analyzing the best therapy regimen. MATERIALS AND METHODS A comprehensive literature search identified a total of 615 studies, and 22 studies assessing 1,889 subjects met the inclusion criteria of this meta: phase II/III trial, over 2 median lines of prior therapy, and detailed efficacy outcomes like overall response rate (ORR), overall survival, and progression-free survival (PFS). All statistical analyses were performed by Revman version 5.3, and the heterogeneity was tested by I2 (25% indicating low heterogeneity, 50% moderate, and 75% high). For those with less heterogeneity, fixed-effect model was used. With a significant high heterogeneity, a random-effect model was used. RESULTS Pooled analysis showed ORR 66.2% across all triplet regimens based on pomalidomide and dexamethasone. Among all triplet regimens, therapy containing bortezomib showed the highest ORR (90.3%), and the one containing elotuzumab showed the lowest ORR (41.2%). The pooled ORRs for the remaining treatment regimens are as follows: cyclophosphamide (70.1%), isatuximab (66.3%), daratumumab (61.2%), clarithromycin (60.0%), pembrolizumab (47.3%). A total of 21 adverse events appeared in the included studies, with neutropenia being the highest incidence of hematologic adverse events (32.1%) and cough being the highest incidence of non-hematologic adverse events (43.3.%). CONCLUSIONS Three-drug regimens based on pomalidomide and dexamethasone could yield excellent overall response rate to relapsed/refractory multiple myeloma, but there are still various adverse events; therefore, consequent studies should address these adverse events.
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Affiliation(s)
- K-Y Liao
- Department of Hematology, Stem Cell Laboratory, Clinical Research Institute, Affiliated Hospital of Southwest Medical University, Luzhou City, Sichuan Province, China.
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Li S, Liu S, Wu Y, Liu Y, Tan D, Fan Y, Wei C, Xiong H. VP.21 Baseline nutrition investigation in a Chinese cohort of pediatric patients with spinal muscular atrophy. Neuromuscul Disord 2022. [DOI: 10.1016/j.nmd.2022.07.098] [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: 11/06/2022]
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27
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Tan D, Zhang H, Xiong H. VP.77 Muscle transcriptomic study of a novel LAMA2-related congenital muscular dystrophy mouse model. Neuromuscul Disord 2022. [DOI: 10.1016/j.nmd.2022.07.339] [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: 11/07/2022]
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28
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Huang X, Yang H, Tan D, Ge L, Fan Y, Chang X, Yang Z, Xiong H. VP.78 Clinical and genetic study of LAMA2-related muscular dystrophy patients with seizures. Neuromuscul Disord 2022. [DOI: 10.1016/j.nmd.2022.07.340] [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: 11/05/2022]
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29
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Reck M, Barlesi F, Yang JH, Westeel V, Felip E, Özgüroğlu M, Dols MC, Sullivan R, Kowalski D, Andric Z, Lee D, Sezer A, Shamrai V, Szalai Z, Wang X, Xiong H, Jacob N, Mehr KT, Park K. OA15.03 Avelumab vs Chemotherapy for First-line Treatment of Advanced PD-L1+ NSCLC: Primary Analysis from JAVELIN Lung 100. J Thorac Oncol 2022. [DOI: 10.1016/j.jtho.2022.07.072] [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: 11/16/2022]
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30
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Wang J, Zhang J, Gao Y, Xiong H, Zhang W, Yan B. The ZrO 2 NPs enhanced the risk of arsenate by promoting its accumulation and reducing its detoxification during food chain transfer from Daphnia magna to zebrafish. J Hazard Mater 2022; 424:127338. [PMID: 34879554 DOI: 10.1016/j.jhazmat.2021.127338] [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: 07/26/2021] [Revised: 09/06/2021] [Accepted: 09/21/2021] [Indexed: 06/13/2023]
Abstract
Arsenic (As) can co-occur with zirconium dioxide nanoparticles (ZrO2 NPs) in aquatic environments, but their combined influence along the aquatic food chain is barely explored. This study constructed water flea Daphnia magna - zebrafish Danio rerio to evaluate the impact of ZrO2 NPs on the accumulation, trophic transfer, transformation, and detoxification of arsenate (As(V)). The zebrafish were fed D. magna exposed to As(V), ZrO2 NPs, or As(V) + ZrO2 NPs for 20 d. Results demonstrated that ZrO2 NPs significantly facilitated total As and As(V) sorption in D. magna and in tissues of zebrafish. ZrO2 NPs enhanced the transformation of inorganic arsenic (iAs) to monomethylated acid (MMA), while decreased synthesis of arsenobetaine (AsB) in tissues, leading to iAs increased. Co-exposed As(V) and ZrO2 NPs facilitated upregulation of absorption-related genes (aqp7) and As biotransformation-related genes (gst, gss), and detoxification and oxidative stress-related genes (mt2, cat, sod1 and sod2). Therefore, genetic expression coupling with biotransformation for the first time demonstrated that As(V) combined with ZrO2 NPs led to increased harm to D. magna and zebrafish and amplified the ecological risks of As(V) along the aquatic food chain. Attention should be paid to the combined toxicity of As(V) and ZrO2 NPs in aquatic environment.
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Affiliation(s)
- Jiahui Wang
- Schools of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
| | - Jichao Zhang
- Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou 510006, China; Institute of Environmental Research at Greater Bay Area, Ministry of Education, Guangzhou University, Guangzhou 510006, China
| | - Yan Gao
- School of Environmental Science and Engineering, Shandong University, Jinan 250100, China
| | - Haiyan Xiong
- Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou 510006, China; Institute of Environmental Research at Greater Bay Area, Ministry of Education, Guangzhou University, Guangzhou 510006, China
| | - Wei Zhang
- Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou 510006, China; Institute of Environmental Research at Greater Bay Area, Ministry of Education, Guangzhou University, Guangzhou 510006, China.
| | - Bing Yan
- Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou 510006, China; Institute of Environmental Research at Greater Bay Area, Ministry of Education, Guangzhou University, Guangzhou 510006, China.
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31
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Wu W, Wu W, Gong CX, Liang Y, Zhu M, Xiong H, Fu JF. [Summary of the Forum on Standardized Diagnosis,Treatment and Management of Pediatric Diseases: the 20th National Pediatric Endocrine and Genetic Metabolic Diseases Conference in 2021]. Zhonghua Er Ke Za Zhi 2022; 60:74-75. [PMID: 34986630 DOI: 10.3760/cma.j.cn112140-20211123-00981] [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: 06/14/2023]
Affiliation(s)
- W Wu
- Department of Endocrinology, Children's Hospital,Zhejiang University School of Medicine, Hangzhou 310052, China
| | - W Wu
- Department of Pediatrics, Tongji Hospital, Tongji Medical College of Huazhong University of Science and Technology, Wuhan 430030, China
| | - C X Gong
- Department of Endocrinology, Genetics and Metabolism, Beijing Children's Hospital, Capital Medical University, Beijing 100045, China
| | - Y Liang
- Department of Pediatrics, Tongji Hospital, Tongji Medical College of Huazhong University of Science and Technology, Wuhan 430030, China
| | - M Zhu
- Department of Endocrinology, Children's Hospital of Chongqing Medical University, Chongqing 400014, China
| | - H Xiong
- Department of Pediatrics, Peking University First Hospital, Beijing 100034, China
| | - J F Fu
- Department of Endocrinology, Children's Hospital,Zhejiang University School of Medicine, Hangzhou 310052, China
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Wu L, Wu Y, Xiong H, Mei B, You T. Persistence of Symptoms After Discharge of Patients Hospitalized Due to COVID-19. Front Med (Lausanne) 2021; 8:761314. [PMID: 34881263 PMCID: PMC8645792 DOI: 10.3389/fmed.2021.761314] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [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: 08/19/2021] [Accepted: 10/29/2021] [Indexed: 12/15/2022] Open
Abstract
Many patients who had coronavirus disease 2019 (COVID-19) had at least one symptom that persisted after recovery from the acute phase. Our purpose was to review the empirical evidence on symptom prevalence, complications, and management of patients with long COVID. We systematically reviewed the literature on the clinical manifestations of long COVID-19, defined by the persistence of symptoms beyond the acute phase of infection. Bibliographic searches in PubMed and Google Scholar were conducted to retrieve relevant studies on confirmed patients with long COVID that were published prior to August 30, 2021. The most common persistent symptoms were fatigue, cough, dyspnea, chest pains, chest tightness, joint pain, muscle pain, loss of taste or smell, hair loss, sleep difficulties, anxiety, and depression. Some of the less common persistent symptoms were skin rash, decreased appetite, sweating, inability to concentrate, and memory lapses. In addition to these general symptoms, some patients experienced dysfunctions of specific organs, mainly the lungs, heart, kidneys, and nervous system. A comprehensive understanding of the persistent clinical manifestations of COVID-19 can improve and facilitate patient management and referrals. Prompt rehabilitative care and targeted interventions of these patients may improve their recovery from physical, immune, and mental health symptoms.
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Affiliation(s)
- Lili Wu
- Nursing Department, People's Hospital of Longhua, Shenzhen, China.,School of Nursing, Guangdong Pharmaceutical University, Guangzhou, China
| | - Yongxin Wu
- School of Nursing, Guangdong Pharmaceutical University, Guangzhou, China
| | - Haiyan Xiong
- Nursing Department, People's Hospital of Longhua, Shenzhen, China
| | - Biqi Mei
- School of Nursing, Guangdong Pharmaceutical University, Guangzhou, China
| | - Tianhui You
- School of Nursing, Guangdong Pharmaceutical University, Guangzhou, China
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Xiong H, Tan QG, Zhang J, Wang WX, Yuan X, Zhang W, Yan B. Physiologically based pharmacokinetic model revealed the distinct bio-transportation and turnover of arsenobetaine and arsenate in marine fish. Aquat Toxicol 2021; 240:105991. [PMID: 34673466 DOI: 10.1016/j.aquatox.2021.105991] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [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: 08/05/2021] [Revised: 09/30/2021] [Accepted: 10/01/2021] [Indexed: 06/13/2023]
Abstract
Arsenobetaine (AsB) is the major form of arsenic in marine fish; however, its biodynamics within the fish tissues is not well understood. This study simulated the biodynamics and biotransportation (absorption, distribution, and elimination) of dietary AsB and arsenate [As(V)] in the marine grouper Epinephelus fuscoguttatus, by constructing a physiologically based pharmacokinetic (PBPK) model. The transfer rates between different compartments (gill, intestine, liver, heart, kidney, and muscle) and blood were modeled during exposure (14 d) and depuration (20 d). The model showed that AsB had a weak ability to cross the intestinal membranes and circulated slowly in the blood. The newly AsB absorbed from the blood did not enter the hepatointestinal circulation for elimination, but was effectively distributed in liver. Thereafter, it was slowly absorbed and finally stored in the muscle, the most important organ for AsB deposition, at a constant rate of 63.5 d-1. In contrast, As(V) displayed a dynamic behavior, including rapid crossing through the intestinal membranes, quick circulation in the blood and transportation to other tissues, and elimination. Biodynamics coupled with biotransformation illustrated, for the first time, the unique strategies of dietary AsB that passed slowly through the fish intestine with the highest deposition rate in the muscle, thereby contributing to the high AsB bioaccumulation in the muscle tissue of marine fish. CAPSULE: AsB displayed a weaker ability to cross the intestine membranes, slowly absorbed and finally stored in muscle, whereas As(V) displayed rapid crossing the intestine membranes, quick transportation, and elimination.
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Affiliation(s)
- Haiyan Xiong
- Institute of Environmental Research at Greater Bay Area, Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou, 510006, China
| | - Qiao-Guo Tan
- Key Laboratory of the Coastal and Wetland Ecosystems, Ministry of Education, College of Environment and Ecology, Xiamen University, Xiamen 361102, China
| | - Jichao Zhang
- Institute of Environmental Research at Greater Bay Area, Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou, 510006, China
| | - Wen-Xiong Wang
- School of Energy and Environment and State Key Laboratory of Marine Pollution, City University of Hong Kong, Kowloon, Hong Kong, China
| | - Xiangzhou Yuan
- Korea Biochar Research Center, APRU Sustainable Waste Management Program & Division of Environmental Science and Ecological Engineering, Korea University, Seoul 02841, Republic of Korea
| | - Wei Zhang
- Institute of Environmental Research at Greater Bay Area, Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou, 510006, China.
| | - Bing Yan
- Institute of Environmental Research at Greater Bay Area, Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou, 510006, China
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D'Angelo SP, Bhatia S, Brohl AS, Hamid O, Mehnert JM, Terheyden P, Shih KC, Brownell I, Lebbé C, Lewis KD, Linette GP, Milella M, Xiong H, Guezel G, Nghiem PT. Avelumab in patients with previously treated metastatic Merkel cell carcinoma (JAVELIN Merkel 200): updated overall survival data after >5 years of follow-up. ESMO Open 2021; 6:100290. [PMID: 34715570 PMCID: PMC8564559 DOI: 10.1016/j.esmoop.2021.100290] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [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: 06/09/2021] [Revised: 09/29/2021] [Accepted: 10/01/2021] [Indexed: 11/03/2022] Open
Abstract
BACKGROUND Merkel cell carcinoma (MCC) is a rare, aggressive skin cancer that has a poor prognosis in patients with advanced disease. Avelumab [anti-programmed death-ligand 1 (PD-L1)] became the first approved treatment for patients with metastatic MCC (mMCC), based on efficacy and safety data observed in the JAVELIN Merkel 200 trial. We report long-term overall survival (OS) data after >5 years of follow-up from the cohort of patients with mMCC whose disease had progressed after one or more prior lines of chemotherapy. PATIENTS AND METHODS In Part A of the single-arm, open-label, phase II JAVELIN Merkel 200 trial, patients with mMCC that had progressed following one or more prior lines of chemotherapy received avelumab 10 mg/kg by intravenous infusion every 2 weeks until confirmed disease progression, unacceptable toxicity, or withdrawal. In this analysis, long-term OS was analyzed. RESULTS In total, 88 patients were treated with avelumab. At data cut-off (25 September 2020), median follow-up was 65.1 months (range 60.8-74.1 months). One patient (1.1%) remained on treatment, and an additional patient (1.1%) had reinitiated avelumab after previously discontinuing treatment. Median OS was 12.6 months [95% confidence interval (CI) 7.5-17.1 months], with a 5-year OS rate of 26% (95% CI 17% to 36%). In patients with PD-L1+ versus PD-L1- tumors, median OS was 12.9 months (95% CI 8.7-29.6 months) versus 7.3 months (95% CI 3.4-14.0 months), and the 5-year OS rate was 28% (95% CI 17% to 40%) versus 19% (95% CI 5% to 40%), respectively (HR 0.67; 95% CI 0.36-1.25). CONCLUSION Avelumab monotherapy resulted in meaningful long-term OS in patients with mMCC whose disease had progressed following chemotherapy. These results further support the role of avelumab as a standard of care for patients with mMCC.
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Affiliation(s)
- S P D'Angelo
- Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, USA; Department of Medicine, Weill Cornell Medical College, New York, USA.
| | - S Bhatia
- Department of Medicine, University of Washington Medical Center, Seattle, USA
| | - A S Brohl
- Sarcoma Department and Cutaneous Oncology, Moffitt Cancer Center, Tampa, USA
| | - O Hamid
- Department of Medical Oncology, The Angeles Clinic and Research Institute, a Cedars-Sinai Affiliate, Los Angeles, USA
| | - J M Mehnert
- Division of Medical Oncology, Rutgers Cancer Institute of New Jersey, New Brunswick, USA
| | - P Terheyden
- Department of Dermatology, University of Lübeck, Lübeck, Germany
| | - K C Shih
- Department of Medical Oncology, Sarah Cannon Research Institute, Nashville, USA; Department of Medical Oncology, Tennessee Oncology, Nashville, USA
| | - I Brownell
- Dermatology Branch, National Institutes of Health, Bethesda, USA
| | - C Lebbé
- Université de Paris, INSERM U976, Paris, France; Dermatology and CIC, AP-HP, Saint Louis Hospital, Paris, France
| | - K D Lewis
- Department of Medicine, University of Colorado Denver School of Medicine, Aurora, USA
| | - G P Linette
- Center for Cellular Immunotherapies, University of Pennsylvania, Philadelphia, USA
| | - M Milella
- Section of Oncology, Department of Medicine, University of Verona School of Medicine and Verona University Hospital Trust (AOUI Verona), Verona, Italy
| | - H Xiong
- Biostatistics, EMD Serono Research & Development Institute, Inc., Billerica, USA, an affiliate of Merck KGaA
| | - G Guezel
- Clinical Development, Merck Healthcare KGaA, Darmstadt, Germany
| | - P T Nghiem
- Division of Dermatology, Department of Medicine, University of Washington Medical Center at South Lake Union, Seattle, USA
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Chen X, Dang H, Chen Q, Chen Z, Ma Y, Liu X, Lin P, Zou H, Xiong H. Endoscopic sinus surgery improves Eustachian tube function in patients with chronic rhinosinusitis: a multicenter prospective study. Rhinology 2021; 59:560-566. [PMID: 34608896 DOI: 10.4193/rhin21.209] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
BACKGROUND Patients with chronic rhinosinusitis (CRS) often have Eustachian tube dysfunction (ETD) symptoms. This study aimed to prospectively investigate the effect of endoscopic sinus surgery (ESS) on improvement of Eustachian tube function in CRS patients with ETD from a Chinese population and determine factors associated with improvement. METHODS A prospective study was performed in CRS patients with ETD who underwent ESS from 3 tertiary medical centers in south China. The Eustachian tube Dysfunction Questionnaire 7 (ETDQ-7), Sinonasal Outcome Test 22 (SNOT-22), tympanograms, endoscopic findings and Valsalva maneuver were recorded and analyzed preoperatively and postoperatively at 8-12 weeks. RESULTS A total of 70 CRS patients with ETD were included in this study. The ETDQ-7 score and the ability of positive Valsalva maneuver in CRS patients were significantly improved postoperatively at 8-12 weeks. The number of patients with type A tympanogram was increased postoperatively. Reduced Eustachian tube mucosal inflammation was also observed postoperatively. In addition, ESS appeared to reverse slight tympanic membrane atelectasis after 8-12 weeks. Moreover, improvement in tympanogram was presented in more than half of CRS patients with concomitant otitis media with effusion postoperatively at 8-12 weeks. Univariate and multivariate analysis revealed failure of normalization of ETDQ-7 postoperatively was associated with concomitant allergic rhinitis and higher preoperative SNOT-22 score. CONCLUSIONS This study confirms Eustachian tube function is often improved after ESS in CRS patients with ETD. Concomitant allergic rhinitis and higher preoperative SNOT-22 score are associated with failure of normalization of ETD symptoms.
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Affiliation(s)
- X Chen
- Department of Otolaryngology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China.,Institute of Hearing and Speech-Language Science, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - H Dang
- Department of Otolaryngology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Q Chen
- Department of Otolaryngology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Z Chen
- Dazhu County People's Hospital, Dazhou, Sichuan, China
| | - Y Ma
- Department of Otolaryngology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - X Liu
- Department of Otolaryngology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - P Lin
- Department of Otolaryngology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - H Zou
- Department of Otolaryngology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - H Xiong
- Department of Otolaryngology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China 2 Institute of Hearing and Speech-Language Science, Sun Yat-sen University, Guangzhou, Guangdong, China
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Masson R, Boespflug-Tanguy O, Darras B, Day J, Deconinck N, Klein A, Mazurkiewicz-Bełdzińska M, Mercuri E, Rose K, Servais L, Vlodavets D, Xiong H, Zanoteli E, Dodman A, El-Khairi M, Gaki E, Gerber M, Gorni K, Kletzl H, Baranello G. SMA - TREATMENT. Neuromuscul Disord 2021. [DOI: 10.1016/j.nmd.2021.07.303] [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: 11/17/2022]
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Liu JZ, Li XB, Xiong H. A FPGA-based adaptive differential current source for electrical impedance tomography. Rev Sci Instrum 2021; 92:094707. [PMID: 34598505 DOI: 10.1063/5.0062640] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Accepted: 08/23/2021] [Indexed: 06/13/2023]
Abstract
A high output impedance current source with a wide bandwidth is needed in electrical impedance tomography systems. Limitations appear mainly at higher frequencies and non-simple loads. In order to adjust the output current, the amplitude and phase are made to achieve the expected value automatically. A current source based on the field programmable gate array is designed. In this paper, we proposed a double DAC differential current source structure. By measuring the voltage of the sampling resistor in series with the load and using the proposed dynamic reference point demodulation algorithm, the actual current amplitude and phase on the load can be quickly obtained. Through the adaptive compensation module, the output current is adjusted to the expected value. The experimental results show that the output resistance of the current source can reach 10 MΩ and the output capacitance can be less than 0.8 pF in the frequency range of 10 kHz-1.28 MHz. At the same time, the current amplitude attenuation is less than 0.016%, and the phase error is less than 0.0025° after compensation. Therefore, the proposed current source achieves widebands, biocompatibility, and high precision.
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Affiliation(s)
- J Z Liu
- The School of Control Science and Engineering, Tiangong University, Tianjin 300387, People's Republic of China
| | - X B Li
- The School of Control Science and Engineering, Tiangong University, Tianjin 300387, People's Republic of China
| | - H Xiong
- The School of Control Science and Engineering, Tiangong University, Tianjin 300387, People's Republic of China
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Xiong J, Yang J, Li W, Xiong H, Liu G, Wu F, Fan N, Zeng X, Huang F, Yang L, Tu X, Shi C, Yi B, Ye J, Li P, Tang C, Huang J, Hou P, Zang W, Tan S. 1411P A prospective, multicenter, real-world study of apatinib in the treatment of gastric cancer. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.08.1520] [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: 11/27/2022] Open
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Feng C, Ye Y, Wang T, Xiong H. Association Between Hemoglobin and Major Adverse Cardiac Events: A Secondary Analysis from a Retrospective Cohort Study. Am J Med Sci 2021; 363:151-160. [PMID: 34302773 DOI: 10.1016/j.amjms.2021.07.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 05/06/2020] [Revised: 02/16/2021] [Accepted: 07/09/2021] [Indexed: 01/06/2023]
Abstract
BACKGROUND This study aims to investigate the association between hemoglobin and major adverse cardiac events (MACE) in patients with stable coronary artery disease (CAD) who were treated with percutaneous coronary intervention (PCI). METHODS This was a secondary analysis based on a retrospective cohort study involving 204 patients with stable CAD. Patients were divided into four groups according to hemoglobin levels (Q1: 6.90-12.30 g/dL; Q2: 12.40-13.80 g/dL; Q3: 13.90-14.90 g/dL; Q4: 15.00-19.00 g/dL). Lasso regression analysis was performed to select characteristic variables and reduce dimensions. Odds ratio (OR) and 95% confidence interval (CI) were used for comparing data among groups. RESULTS After an average follow-up of 783 days, 28/204 (17.72%) patients with CAD occurred MACE. Univariate analysis data showed that hemoglobin level was negatively associated with the incidence of MACE in patients with CAD treated with PCI (Q2 vs Q1: OR=0.19, P=0.005; Q3 vs Q1: OR=0.25, P=0.013; Q4 vs Q1: OR=0.13, P=0.002). The negative correlation between hemoglobin and MACE still existed after adjusting selected variables obtained from multivariate regression analysis (Q2 vs Q1: OR= 0.18, P=0.007; Q3 vs Q1: OR=0.29, P=0.038; Q4 vs Q1: OR=0.19, P=0.016). Curve fitting illustrated that hemoglobin level presented a non-linear and negative association with MACE in patients with CAD treated with PCI. CONCLUSIONS Hemoglobin level can be utilized as a prognostic indicator of MACE in patients with CAD after PCI.
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Affiliation(s)
- Caiyun Feng
- Department of Nursing, People's Hospital of Longhua Shenzhen, Shenzhen, China
| | - Yongxiu Ye
- Department of Nursing, People's Hospital of Longhua Shenzhen, Shenzhen, China
| | - Ting Wang
- Department of Nursing, People's Hospital of Longhua Shenzhen, Shenzhen, China
| | - Haiyan Xiong
- Department of Nursing, People's Hospital of Longhua Shenzhen, Shenzhen, China.
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Hua L, Stevenson SR, Reyna-Llorens I, Xiong H, Kopriva S, Hibberd JM. The bundle sheath of rice is conditioned to play an active role in water transport as well as sulfur assimilation and jasmonic acid synthesis. Plant J 2021; 107:268-286. [PMID: 33901336 DOI: 10.1111/tpj.15292] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Revised: 04/16/2021] [Accepted: 04/20/2021] [Indexed: 06/12/2023]
Abstract
Leaves comprise multiple cell types but our knowledge of the patterns of gene expression that underpin their functional specialization is fragmentary. Our understanding and ability to undertake the rational redesign of these cells is therefore limited. We aimed to identify genes associated with the incompletely understood bundle sheath of C3 plants, which represents a key target associated with engineering traits such as C4 photosynthesis into Oryza sativa (rice). To better understand the veins, bundle sheath and mesophyll cells of rice, we used laser capture microdissection followed by deep sequencing. Gene expression of the mesophyll is conditioned to allow coenzyme metabolism and redox homeostasis, as well as photosynthesis. In contrast, the bundle sheath is specialized in water transport, sulphur assimilation and jasmonic acid biosynthesis. Despite the small chloroplast compartment of bundle sheath cells, substantial photosynthesis gene expression was detected. These patterns of gene expression were not associated with the presence or absence of specific transcription factors in each cell type, but were instead associated with gradients in expression across the leaf. Comparative analysis with C3 Arabidopsis identified a small gene set preferentially expressed in the bundle sheath cells of both species. This gene set included genes encoding transcription factors from 14 orthogroups and proteins allowing water transport, sulphate assimilation and jasmonic acid synthesis. The most parsimonious explanation for our findings is that bundle sheath cells from the last common ancestor of rice and Arabidopsis were specialized in this manner, and as the species diverged these patterns of gene expression have been maintained.
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Affiliation(s)
- Lei Hua
- Department of Plant Sciences, University of Cambridge, Downing Street, Cambridge, CB2 3EA, UK
| | - Sean R Stevenson
- Department of Plant Sciences, University of Cambridge, Downing Street, Cambridge, CB2 3EA, UK
| | - Ivan Reyna-Llorens
- Department of Plant Sciences, University of Cambridge, Downing Street, Cambridge, CB2 3EA, UK
| | - Haiyan Xiong
- Department of Plant Sciences, University of Cambridge, Downing Street, Cambridge, CB2 3EA, UK
| | - Stanislav Kopriva
- Institute for Plant Sciences, Cluster of Excellence on Plant Sciences (CEPLAS), University of Cologne, Zülpicher Str. 47b, Cologne, 50674, Germany
| | - Julian M Hibberd
- Department of Plant Sciences, University of Cambridge, Downing Street, Cambridge, CB2 3EA, UK
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Sha J, Xiong H, Li C, Lu Z, Zhang J, Zhong H, Zhang W, Yan B. Harmful algal blooms and their eco-environmental indication. Chemosphere 2021; 274:129912. [PMID: 33979937 DOI: 10.1016/j.chemosphere.2021.129912] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Revised: 01/20/2021] [Accepted: 02/05/2021] [Indexed: 06/12/2023]
Abstract
Harmful algal blooms (HABs) in freshwater lakes and oceans date back to as early as the 19th century, which can cause the death of aquatic and terrestrial organisms. However, it was not until the end of the 20th century that researchers had started to pay attention to the hazards and causes of HABs. In this study, we analyzed 5720 published literatures on HABs studies in the past 30 years. Our review presents the emerging trends in the past 30 years on HABs studies, the environmental and human health risks, prevention and control strategies and future developments. Therefore, this review provides a global perspective of HABs and calls for immediate responses.
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Affiliation(s)
- Jun Sha
- Institute of Environmental Research at Greater Bay Area, Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou, China; School of Tourism and Resource Environment, Qiannan Normal University for Nationalities, Duyun, China
| | - Haiyan Xiong
- Institute of Environmental Research at Greater Bay Area, Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou, China
| | - Chengjun Li
- Institute of Environmental Research at Greater Bay Area, Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou, China
| | - Zhiying Lu
- Department of Biology, University of Alabama at Birmingham, Birmingham, AL, 35924, United States
| | - Jichao Zhang
- Institute of Environmental Research at Greater Bay Area, Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou, China
| | - Huan Zhong
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, China
| | - Wei Zhang
- Institute of Environmental Research at Greater Bay Area, Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou, China.
| | - Bing Yan
- Institute of Environmental Research at Greater Bay Area, Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou, China.
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Huang X, Jiang Z, Sun H, Xie B, Lu F, Huang W, Wang T, Xiong H. The effect of a high-quality nursing model employing low-frequency pulse electrical stimulation combined with early systemic functional exercises on the function of the affected limb in brachial plexus injury patients. Am J Transl Res 2021; 13:4939-4948. [PMID: 34150078 PMCID: PMC8205739] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Accepted: 10/21/2020] [Indexed: 06/12/2023]
Abstract
OBJECTIVE To explore the effect of a high-quality nursing model employing low-frequency pulse electrical stimulation combined with early systemic functional exercises on the function of the affected limb in brachial plexus injury patients. METHODS A total of 98 brachial plexus injury patients admitted to our hospital were recruited as the research cohort. All the patients were treated with surgery to repair, release, and transfer or transplant nerves according to each patient's condition. After the operations, the patients were randomly divided into one of two groups: the control group (n=49) or the research group (n=49). The control group did early systemic functional exercises, while the research group was administered low frequency pulse electrical stimulation in addition to doing the early systemic functional exercises. The clinical efficacy, the visual analogue scale (VAS) scores before and after the treatment, the brachial plexus function scores, the nerve conduction velocities and amplitudes, the SF-36 questionnaires, the incidences of complications, and the nursing satisfaction were compared between the two groups. RESULTS After the treatment, the overall response rate to the treatment in the research group was significantly higher than it was in the control group (95.92% vs 81.63%, P<0.05). The VAS scores in both groups were decreased, and the scores in the research group were lower than the scores in the control group (P<0.05). The upper limb, lower limb, and the whole brachial plexus scores were increased in both groups, and the scores in the research group were higher than the scores in the control group (P<0.05). The motor conduction velocities, the sensory conduction velocities, and the amplitudes of the ulnar and median nerves in the two groups were increased, and the research group had higher levels than the control group (P<0.05). The emotional function, physical pain, physical health, role function, social function, mental health, energy, and general health scores in the two groups were increased, and the research group was higher than the control group (P<0.05). The incidence of complications in the research group was lower than it was in the control group, but the nursing satisfaction was higher than it was in the control group (all P<0.05). CONCLUSION The high-quality nursing model based on low-frequency pulse electrical stimulation combined with early systemic functional exercise can effectively promote the functional recovery of the affected limb in brachial plexus injury patients. It can reduce pain and the incidence of complications and it can improve the quality of life and the satisfaction with the nursing at the same time.
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Affiliation(s)
- Xiaoyu Huang
- Department of Hand Surgery, People’s Hospital of Longhua DistrictShenzhen, Guangdong Province, China
| | - Zongyuan Jiang
- Department of Hand Surgery, People’s Hospital of Longhua DistrictShenzhen, Guangdong Province, China
| | - Haoran Sun
- Department of Hand Surgery, People’s Hospital of Longhua DistrictShenzhen, Guangdong Province, China
| | - Bangzhu Xie
- Department of Hand Surgery, People’s Hospital of Longhua DistrictShenzhen, Guangdong Province, China
| | - Fang Lu
- Department of Hand Surgery, People’s Hospital of Longhua DistrictShenzhen, Guangdong Province, China
| | - Wenlong Huang
- Department of Nursing, People’s Hospital of Longhua DistrictShenzhen, Guangdong Province, China
| | - Ting Wang
- Department of Nursing, People’s Hospital of Longhua DistrictShenzhen, Guangdong Province, China
| | - Haiyan Xiong
- Department of Nursing, People’s Hospital of Longhua DistrictShenzhen, Guangdong Province, China
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Xiong H, Huang D. 089 The mevalonate pathway enzyme HMGCS1 upregulation in keratinocytes contributes to psoriasis by promoting IL-23 expression. J Invest Dermatol 2021. [DOI: 10.1016/j.jid.2021.02.107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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44
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Tan SF, Ni JX, Xiong H. LncRNA UNC5B-AS1 promotes malignant progression of prostate cancer by competitive binding to caspase-9. Eur Rev Med Pharmacol Sci 2021; 24:2271-2280. [PMID: 32196578 DOI: 10.26355/eurrev_202003_20493] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE This study aims to investigate the expression of LncRNA UNC5B-AS1 in prostate cancer (PCa) and to further investigate whether it can prompt malignant progression of PCa via regulating caspase-9. PATIENTS AND METHODS Quantitative Real Time-Polymerase Chain Reaction (qRT-PCR) was conducted to examine UNC5B-AS1 expression in 50 pairs of tumor tissue specimens and paracancerous ones collected from PCa patients, and the interplay between UNC5B-AS1 expression and clinical indicators of PCa was also analyzed. Meanwhile, UNC5B-AS1 levels in PCa cell lines were also further verified by qRT-PCR. In addition, UNC5B-AS1 knockdown model was constructed using lentivirus in PCa cell lines, and cell counting kit-8 (CCK-8), 5-Ethynyl-2'-deoxyuridine (EdU), transwell and flow cytometry assays were performed to figure out the impact of UNC5B-AS1 on the biological function of PCa cells. Finally, cell recovery experiment was conducted to explore the underlying mechanism and the association between UNC5B-AS1 and caspase-9. RESULTS QRT-PCR results suggested that UNC5B-AS1 expression in PCa tissue samples was remarkably higher than in adjacent ones, with a statistically significant difference. Compared with patients with low expression of UNC5B-AS1, patients with highly-expressed UNC5B-AS1 had a higher incidence of distant metastasis and more advanced pathological stage. At the same time, proliferation and invasion, as well as migration ability of cells in sh-UNC5B-AS1 group, was conspicuously attenuated while cell apoptosis ability was conversely enhanced. Furthermore, qRT-PCR results revealed that caspase-9 and UNC5B-AS1 showed a negative correlation in gene expression level in PCa tissues. The results of the luciferase reporter gene experiment demonstrated that UNC5B-AS1 can be targeted by caspase-9 through their binding site. Additionally, cell recovery experiment indicated that UNC5B-AS1 and caspase-9 can be mutually regulated, which then together affect the malignant progression of PCa. CONCLUSIONS UNC5B-AS1 expression was found remarkably increased in both PCa tissues and cell lines, which was remarkably associated with pathological stage and incidence of distant metastasis of PCa patients. In addition, UNC5B-AS1 was able to accelerate the malignant progression of PCa by modulating caspase-9 expression.
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Affiliation(s)
- S-F Tan
- Department of Urology, Linyi People's Hospital, Linyi, China.
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Wang L, Xi D, Xiong H, Memon S, Li G, Gu Z, Nadir S, Deng W. Microsatellite markers reveal polymorphisms at the 3′ untranslated region of the SLC11A1 gene in Zhongdian Yellow cattle ( Bos taurus). Can J Anim Sci 2021. [DOI: 10.1139/cjas-2018-0231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Solute carrier family 11-member A1 (SLC11A1) gene encodes natural macrophage resistance-associated protein which regulates activity of macrophages against intracellular pathogens. The objective of this study was to study the polymorphism in the microsatellites present at 3′ untranslated region (UTR) of the SLC11A1 gene in 113 Zhongdian Yellow cattle (Bos taurus). Using DNA bi-directional sequencing, we detected seven alleles (GT10–16) for the first microsatellite (MS1), five alleles (GT12–16) for MS2, and four alleles (GT4–7) for MS3. MS3 is studied for the first time and revealed four novel variants (alleles GT4–7). Alleles GT12 (45.1%), GT13 (59.3%), and GT5 (85.4%) were the most frequent alleles at MS1, MS2, and MS3, respectively, Genotypes G12/12, G13/13, and G5/5 had the highest frequency 0.239, 0.540, and 0.743 at MS1, MS2, and MS3, respectively. Haplotypic data revealed that GT12/GT13 was the most frequent haplotype observed followed by GT12/14 haplotype. Three nucleotide variations were observed in MS1 and MS2. Comparative analysis of GT12/GT12 and GT13/GT13 genotype with other bovine genotypes showed significant difference (P > 0.05). Our results suggest that the homozygous genotypes GT12/GT12 and GT13/GT13 in Zhongdian Yellow cattle might be related to disease resistance. The findings reported in this study would be helpful in cattle breeding programs.
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Affiliation(s)
- L. Wang
- Yunnan Provincial Key Laboratory of Animal Nutrition and Feed, Faculty of Animal Science and Technology, Yunnan Agricultural University, Kunming, People’s Republic of China
- Department of Life Science and Technology, Xinxiang University, Xinxiang 453003, People’s Republic of China
| | - D. Xi
- Yunnan Provincial Key Laboratory of Animal Nutrition and Feed, Faculty of Animal Science and Technology, Yunnan Agricultural University, Kunming, People’s Republic of China
| | - H. Xiong
- Yunnan Provincial Key Laboratory of Animal Nutrition and Feed, Faculty of Animal Science and Technology, Yunnan Agricultural University, Kunming, People’s Republic of China
- Yunnan Animal Science and Veterinary Institute, Kunming 650224, People’s Republic of China
| | - S. Memon
- Yunnan Provincial Key Laboratory of Animal Nutrition and Feed, Faculty of Animal Science and Technology, Yunnan Agricultural University, Kunming, People’s Republic of China
- Yunnan Animal Science and Veterinary Institute, Kunming 650224, People’s Republic of China
| | - G. Li
- Yunnan Provincial Key Laboratory of Animal Nutrition and Feed, Faculty of Animal Science and Technology, Yunnan Agricultural University, Kunming, People’s Republic of China
| | - Z. Gu
- Yunnan Provincial Key Laboratory of Animal Nutrition and Feed, Faculty of Animal Science and Technology, Yunnan Agricultural University, Kunming, People’s Republic of China
| | - S. Nadir
- University of Science and Technology Bannu, Bannu 28100, Pakistan
| | - W. Deng
- Yunnan Provincial Key Laboratory of Animal Nutrition and Feed, Faculty of Animal Science and Technology, Yunnan Agricultural University, Kunming, People’s Republic of China
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Zhang W, Xiong H, Zhang J, Wang WX. Transfer and bioavailability of inorganic and organic arsenic in sediment-water-biota microcosm. Aquat Toxicol 2021; 232:105763. [PMID: 33535133 DOI: 10.1016/j.aquatox.2021.105763] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Revised: 01/16/2021] [Accepted: 01/19/2021] [Indexed: 06/12/2023]
Abstract
Arsenic (As) contamination in the sediments has received increasing attention, but its transfer and bioavailability to benthic infauna remain much less well known. In the present study, we deployed the diffusive gradients in thin films (DGT) to quantify the different As speciation in the overlying water and porewater, and assessed the exposure pathway, transfer and bioavailability of different As species in an infaunal clam Sinonovacula constricta. We demonstrated a very dynamic transformation and exposure of As in the sediment-water-clam microcosm. In such microcosm, arsenite [As(III)] in the overlying water, pore water and sediments was almost oxidized to arsenate [As(V)]. Conversely, the accumulated As(V) in the clams was reduced to As(III), followed by methylation to dimethylarsinic acid (DMA), whereas the overall conversion of toxic inorganic As species to less-toxic arsenobetaine (AsB) was much poor in the clams. Moreover, biotransformation depended on the As accumulation level. As(III) was the predominant As species in the control and the Low As treatment clam, whereas DMA was the predominant As species in the High As treatment clam. Significant and positive correlations were found between As(V) concentrations in the clams and those in DGT-labile As in overlying water/pore water, as well as between the DMA and As(V) concentrations in the clams and those in the sediment. DMA and As(V) in the sediments was much more bioavailable to the clams than inorganic As [As(III)] and AsB. Moreover, As(III) and As(V) in the overlying water and pore water, as well as DMA and As(V) in the sediments displayed high migration ability. Coupled DGT technology and biotransformation study therefore suggested that metabolism of ingested As species as well as ingestion and retention of DMA resulted in high DMA bioaccumulation in clams.
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Affiliation(s)
- Wei Zhang
- Institute of Environmental Research at Greater Bay Area, Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou, 510006, China
| | - Haiyan Xiong
- Institute of Environmental Research at Greater Bay Area, Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou, 510006, China
| | - Jichao Zhang
- Institute of Environmental Research at Greater Bay Area, Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou, 510006, China
| | - Wen-Xiong Wang
- School of Energy and Environment, Hong Kong Branch of the Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), State Key Laboratory of Marine Pollution, City University of Hong Kong, Kowloon, Hong Kong, China; Research Centre for the Oceans and Human Health, City University of Hong Kong Shenzhen Research Institute, Shenzhen, 518057, China.
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47
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Du Y, Li WP, Xiong H, Zhang S, Zhou ZY, Deng JP, Zhang JN. [Efficacy and safety of pylorus-preserving gastrectomy for early gastric cancer located in the middle third of the stomach: a meta-analysis]. Zhonghua Wei Chang Wai Ke Za Zhi 2020; 23:1088-1096. [PMID: 33212558 DOI: 10.3760/cma.j.cn.441530-20200228-00098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: It is yet to be clarified whether pylorus-preserving gastrectomy (PPG) for early gastric cancer will bring the risk of radical tumor resection, whether it will increase the incidence of postoperative complications, and how much is the benefit of the quality of life for patients after surgery, these issues are not clear. This meta-analysis aims to evaluate the efficacy and safety of pylorus-preserving gastrectomy (PPG) for early middle gastric cancer. Methods: The Chinese and English literatures about PPG and distal gastrectomy (DG) for early gastric cancer were searched from PubMed, Embase, The Cochrane Library, Web of Science, CNKI net and Wanfang database. Literature inclusion criteria: (1) Prospective or retrospective cohort study of PPG and DG for early middle-third gastric cancer published publicly; (2) Patients with early middle-third gastric cancer; (3) The enrolled literatures include at least one of the following outcome indicators: the efficacy indicators include gallstone, residual gastritis, bile reflux, delayed gastric emptying, dumping syndrome, reflux esophagitis and overall complication; the long-term prognostic indicators include 5-year survival rate and 5-year tumor recurrence. Literature exclusion criteria: (1) Reviews, case reports, conference summaries and other non-control studies; (2) Repeated published studies, incomplete studies and unextractable studies; (3) The depth of tumor invasion exceeding submucosa. The search time ended in July 2020. The basic information and evaluation indicators included in the article were extracted. The retrospective study was evaluated using Newcastle-Ottawa literature quality evaluation scale. The prospective randomized controlled study was evaluated using Jadad modified scale. Meta-analysis was performed using Review Manager 5.3. Publication bias was assessed using funnel map. Publication bias was tested using Egger tools. Results: A total of 717 literatures were retrieved, and 17 literatures were enrolled finally, including 2 randomized controlled trials and 15 retrospective studies. A total of 2427 patients were enrolled, including 948 in PPG group and 1479 in DG group. The meta-analysis of the efficacy indicators showed that there were significant differences in gallstones incidence (OR=0.42, 95% CI: 0.28-0.65, P<0.001), residual gastritis incidence (OR=0.50, 95% CI: 0.32-0.77,P=0.002), bile reflux incidence (OR=0.30, 95% CI: 0.20-0.45, P<0.001), delayed gastric emptying incidence (OR=2.40, 95% CI:1.67-3.45, P<0.001), and postoperative dumping syndrome incidence (OR=0.28, 95% CI: 0.15-0.51, P<0.001), while there were no significant differences in postoperative overall complications (OR=0.97, 95% CI: 0.69-1.35, P=0.840), reflux esophagitis incidence (OR=0.79, 95% CI: 0.39-1.61, P=0.520) between the two groups. The meta-analysis of the long-term prognostic indicators showed that no significant differences of 5-year survival (OR=1.02, 95% CI: 0.61-1.71, P=0.940) or 5-year tumor recurrence (OR=0.77, 95% CI: 0.36-1.68, P=0.520) were observed between the two groups. Conclusion: The incidences of gallstone, residual gastritis, dumping syndrome, bile reflux are lower after PPG in early gastric cancer, while the postoperative overall complications and long-term survival are comparable between PPG and DG, indicating that PPG is quite safe and feasible.
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Affiliation(s)
- Y Du
- Department of Gastrointestinal Surgery, the First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, China
| | - W P Li
- Department of Gastrointestinal Surgery, Taicang Hospital Affiliated of Soochow University (the First People's Hospital of Taicang), Taicang, Jiangsu 215400, China
| | - H Xiong
- Department of Gastrointestinal Surgery, the First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, China
| | - S Zhang
- Department of Gastrointestinal Surgery, the First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, China
| | - Z Y Zhou
- Department of Gastrointestinal Surgery, the First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, China
| | - J P Deng
- Department of Gastrointestinal Surgery, the First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, China
| | - J N Zhang
- Department of Gastrointestinal Surgery, the First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, China
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Wu W, Wu W, Gong CX, Liang Y, Zhu M, Xiong H, Fu JF. [Summary of the 19th National Pediatric Endocrine and Genetic Metabolic Diseases Conference in 2020]. Zhonghua Er Ke Za Zhi 2020; 58:1038-1040. [PMID: 33256332 DOI: 10.3760/cma.j.cn112140-20200930-00912] [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: 06/12/2023]
Affiliation(s)
- W Wu
- Department of Endocrinology, the Children's Hospital of Zhejiang University School of Medicine, Hangzhou 310052, China
| | - W Wu
- Department of Pediatrics, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - C X Gong
- Department of Endocrinology, Genetics and Metabolism, Beijing Children's Hospital, Capital Medical University, Beijing 100045, China
| | - Y Liang
- Department of Pediatrics, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - M Zhu
- Department of Endocrinology, Children's Hospital of Chongqing University, Chongqing 400014, China
| | - H Xiong
- Department of Pediatrics, Peking University First Hospital, Beijing 100034, China
| | - J F Fu
- Department of Endocrinology, the Children's Hospital of Zhejiang University School of Medicine, Hangzhou 310052, China
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Sun Z, He G, Huang N, Chen H, Zhang S, Zhao Z, Zhao Y, Yang G, Yang S, Xiong H, Karuppiah T, Kumar SS, He J, Xiong C. Impact of the Inflow Population From Outbreak Areas on the COVID-19 Epidemic in Yunnan Province and the Recommended Control Measures: A Preliminary Study. Front Public Health 2020; 8:609974. [PMID: 33344408 PMCID: PMC7738349 DOI: 10.3389/fpubh.2020.609974] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [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: 09/24/2020] [Accepted: 11/11/2020] [Indexed: 12/15/2022] Open
Abstract
Background: COVID-19 developed into a global pandemic in 2020 and poses challenges regarding the prevention and control capabilities of countries. A large number of inbound travelers from other regions could lead to a renewed outbreak of COVID-19 in the local regions. Globally, as a result of the imbalance in the control of the epidemic, all countries are facing the risk of a renewed COVID-19 outbreak brought about by travelers from epidemic areas. Therefore, studies on a proper management of the inbound travelers are urgent. Methods: We collected a total of 4,733,414 inbound travelers and 174 COVID-19 diagnosed patients in Yunnan province from 21 January 2020 to 20 February 2020. Data on place of origin, travel history, age, and gender, as well as whether they had suspected clinical manifestations for inbound travelers in Yunnan were collected. The impact of inbound travelers on the local epidemic was analyzed with a collinear statistical analysis and the effect of the control measures on the epidemic was evaluated with a sophisticated modeling approach. Results: Of the 174 COVID-19 patients, 60.9% were not from Yunnan, and 76.4% had a history of travel in Hubei. The amount of new daily cases in Yunnan was significant correlated with the number of inbound travelers from Hubei and suspected cases among them. Using Susceptible–Exposed–Infectious–Recovered (SEIR) model analysis, we found that the prevention and control measures dropped the local R0 down to 1.07 in Yunnan province. Conclusions: Our preliminary analysis showed that the proper management of inbound travelers from outbreak areas has a significantly positive effect on the prevention and control of the virus. In the process of resettlement, some effective measures taken by Yunnan province may provide an important reference for preventing the renewed COVID-19 outbreak in other regions.
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Affiliation(s)
- Zhong Sun
- Department of Biomedical Science, Faculty of Medicine & Health Sciences, Universiti Putra Malaysia, Serdang, Malaysia
| | - Guozhong He
- School of Public Health, Kunming Medical University, Kunming, China
| | - Ninghao Huang
- Department of Epidemiology, School of Public Health, Fudan University, Shanghai, China.,Key Laboratory of Public Health Safety, Ministry of Education, School of Public Health, Fudan University, Shanghai, China
| | - Hongyu Chen
- School of Public Health, Kunming Medical University, Kunming, China
| | - Shuwei Zhang
- School of Public Health, Kunming Medical University, Kunming, China
| | - Zizhao Zhao
- School of Public Health, Kunming Medical University, Kunming, China
| | - Yao Zhao
- School of Public Health, Kunming Medical University, Kunming, China
| | - Guang Yang
- School of Public Health, Kunming Medical University, Kunming, China
| | - Songwang Yang
- School of Public Health, Kunming Medical University, Kunming, China
| | - Haiyan Xiong
- Department of Epidemiology, School of Public Health, Fudan University, Shanghai, China.,Key Laboratory of Public Health Safety, Ministry of Education, School of Public Health, Fudan University, Shanghai, China
| | - Thilakavathy Karuppiah
- Department of Biomedical Science, Faculty of Medicine & Health Sciences, Universiti Putra Malaysia, Serdang, Malaysia.,Genetics and Regenerative Medicine Research Group, Faculty of Medicine & Health Sciences, Universiti Putra Malaysia, Serdang, Malaysia
| | - S Suresh Kumar
- Genetics and Regenerative Medicine Research Group, Faculty of Medicine & Health Sciences, Universiti Putra Malaysia, Serdang, Malaysia.,Department of Medical Microbiology and Parasitology, Universiti Putra Malaysia, Serdang, Malaysia
| | - Jibo He
- Center for Disease Control and Prevention in Yunnan Province, Kunming, China
| | - Chenglong Xiong
- Department of Epidemiology, School of Public Health, Fudan University, Shanghai, China.,Key Laboratory of Public Health Safety, Ministry of Education, School of Public Health, Fudan University, Shanghai, China
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Pan J, Tian J, Xiong H, Liu Z, Yao Y, Wang Y, Zhu W, Wang Y, Wang W. Risk assessment and evaluation of China's policy to prevent COVID-19 cases imported by plane. PLoS Negl Trop Dis 2020; 14:e0008908. [PMID: 33284804 PMCID: PMC7746261 DOI: 10.1371/journal.pntd.0008908] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [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: 07/08/2020] [Revised: 12/17/2020] [Accepted: 10/21/2020] [Indexed: 12/13/2022] Open
Abstract
As of October 5, 2020, China has reported 2,921 cases imported from overseas. Assessing the effectiveness of China's current policies on imported cases abroad is very important for China and other countries that are facing or will face overseas imported cases. In April, we used a susceptible-exposed-infectious-recovered metapopulation model to simulate the epidemic in seven foreign countries, China and the three Chinese key cities. Based on the model outside China, we estimated the proportion of people in incubation period and calculated the risk indexes for Chinese cities through analyzing aviation traffic data from these countries. Based on the model in China and the three key cities, we collected information on control measures and quantified the effectiveness of implementing the current policies at different times and intensities. Our model results showed that Shanghai, Beijing, Qingdao, Guangzhou, and Tianjin have the top five risk indexes. As of April 20, 2020, under current measures, the number of confirmed cases could be reduced by 99% compared with no air traffic restrictions and isolation measures; the reduction could be 93% with isolation of passengers only from key countries. If the current policy were postponed for 7, 10, or 20 days, the increase in the number of confirmed cases would be 1,329, 5,524, and 779,245 respectively, which is 2.1, 5.7, and 662.9 times the number of confirmed cases under current measures. Our research indicates that the importation control measures currently taken by China were implemented at an appropriate time to prevent the epidemic spreading and have achieved relatively good control results. However, it is necessary to remain vigilant; otherwise, another outbreak peak could occur.
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Affiliation(s)
- Jinhua Pan
- Department of Epidemiology, School of Public Health, Fudan University, Shanghai, China
- Key Laboratory of Public Health Safety of Ministry of Education, Fudan University, Shanghai, China
| | - Jie Tian
- Department of Epidemiology, School of Public Health, Fudan University, Shanghai, China
- Key Laboratory of Public Health Safety of Ministry of Education, Fudan University, Shanghai, China
| | - Haiyan Xiong
- Department of Epidemiology, School of Public Health, Fudan University, Shanghai, China
- Key Laboratory of Public Health Safety of Ministry of Education, Fudan University, Shanghai, China
| | - Zhixi Liu
- Department of Epidemiology, School of Public Health, Fudan University, Shanghai, China
- Key Laboratory of Public Health Safety of Ministry of Education, Fudan University, Shanghai, China
| | - Ye Yao
- Department of Biostatics, School of Public Health, Fudan University, Shanghai, China
| | - Yesheng Wang
- Department of Epidemiology, School of Public Health, Fudan University, Shanghai, China
- Key Laboratory of Public Health Safety of Ministry of Education, Fudan University, Shanghai, China
| | - Wenlong Zhu
- Department of Epidemiology, School of Public Health, Fudan University, Shanghai, China
- Key Laboratory of Public Health Safety of Ministry of Education, Fudan University, Shanghai, China
| | - Yue Wang
- Department of Epidemiology, School of Public Health, Fudan University, Shanghai, China
- Key Laboratory of Public Health Safety of Ministry of Education, Fudan University, Shanghai, China
| | - Weibing Wang
- Department of Epidemiology, School of Public Health, Fudan University, Shanghai, China
- Key Laboratory of Public Health Safety of Ministry of Education, Fudan University, Shanghai, China
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