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Zhao R, Shao H, Shi G, Qiu Y, Tang T, Lin Y, Chen S, Huang C, Liao S, Chen J, Fu H, Liu J, Shen J, Liu T, Xu B, Zhang Y, Yang Y. The Role of Radiotherapy in Patients with Refractory Hodgkin Lymphoma after Brentuximab Vedotin and -/or Immune Checkpoint Inhibitors. Int J Radiat Oncol Biol Phys 2023; 117:e499. [PMID: 37785568 DOI: 10.1016/j.ijrobp.2023.06.1741] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) Brentuximab vedotin (BV) and immune checkpoint inhibitors (ICIs) had important roles in the treatment of relapse or refractory (R/R) Hodgkin lymphoma (HL). Treatment of refractory disease after BV and -/or ICIs remains a challenge. This study was conducted to evaluate the efficacy and safety of radiotherapy for R/R HL after failure to BV or ICIs. MATERIALS/METHODS We retrospectively analyzed patients in two institutions with R/R HL who had failed after first-line therapy, and were refractory to BV or ICIs, and received radiotherapy (RT) thereafter. The overall response rate (ORR), duration of response (DOR), progression-free survival (PFS) and overall survival (OS) were analyzed. RESULTS A total of 19 patients were enrolled. First-line systemic therapy consisted of ABVD (84.2%), AVD + ICIs (10.5%) and BEACOPP (5.3%), respectively. After first-line therapy, 15 patients (78.9%) were refractory, and 4 patients (21.1%) relapsed. After diagnosis of R/R HL, 8 patients (42.1%) received BV, and 17 patients (89.5%) received ICIs. RT was delivered in all 19 patients who failed after BV or ICIs. In 16 efficacy-evaluable patients, the ORR and CR rate were 100% and 100%. The median DOR was 17.2 months (range, 7.9 to 46.7 months). 3 patients progressed at outside of the radiation field. The in-field-response rate was 100%. The 12-month PFS and OS were 84.4% and 100%, respectively. No patients were reported with sever adverse events. CONCLUSION This study concluded that radiotherapy was effective and safe for refractory HL after BV or ICIs. Further prospective studies were warranted.
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Affiliation(s)
- R Zhao
- Department of Radiation Oncology, Fujian Medical University Union Hospital, Fujian Key Laboratory of Intelligent Imaging and Precision Radiotherapy for Tumors (Fujian Medical University), Fuzhou, China
| | - H Shao
- Department of Radiation Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Guang Zhou, China
| | - G Shi
- Department of Radiation Oncology, Fujian Medical University Union Hospital, Fujian Key Laboratory of Intelligent Imaging and Precision Radiotherapy for Tumors (Fujian Medical University), Fuzhou, China
| | - Y Qiu
- Department of Hematology, Fujian Medical University Union Hospital, Fujian Institute of Hematology, Fujian Provincial Key Laboratory on Hematology, Fuzhou, China
| | - T Tang
- Department of Radiation Oncology, Affiliated Union Hospital of Fujian Medical University, Fuzhou, China
| | - Y Lin
- Department of Radiation Oncology, Fujian Medical University Union Hospital, Fuzhou, China
| | - S Chen
- Department of Radiation Oncology, Fujian Medical University Union Hospital, Fujian Key Laboratory of Intelligent Imaging and Precision Radiotherapy for Tumors (Fujian Medical University), Fuzhou, China
| | - C Huang
- Department of Radiation Oncology, Fujian Medical University Union Hospital, Fujian Key Laboratory of Intelligent Imaging and Precision Radiotherapy for Tumors (Fujian Medical University), Fuzhou, China
| | - S Liao
- Department of PET/CT Center, Fujian Medical University Union Hospital, Fuzhou, China
| | - J Chen
- Follow-Up Center, Fujian Medical University Union Hospital, Fuzhou, China
| | - H Fu
- Department of Hematology, The Third Affiliated People's Hospital of Fujian University of Traditional Chinese Medicine, The Third People's Hospital of Fujian Province, Fuzhou, China
| | - J Liu
- Department of Otorhinolaryngology, Fujian Medical University Union Hospital, Fuzhou, China
| | - J Shen
- Department of Hematology, Fujian Medical University Union Hospital, Fujian Institute of Hematology, Fujian Provincial Key Laboratory on Hematology, Fuzhou, China
| | - T Liu
- Department of Hematology, Fujian Medical University Union Hospital, Fujian Institute of Hematology, Fujian Provincial Key Laboratory on Hematology, Fuzhou, China
| | - B Xu
- Fujian Key Laboratory of Intelligent Imaging and Precision Radiotherapy for Tumors (Fujian Medical University), Fuzhou, China
| | - Y Zhang
- Sun Yat Sen University Cancer Hospital, Guandzhou, Guangdong, China
| | - Y Yang
- Fujian Key Laboratory of Intelligent Imaging and Precision Radiotherapy for Tumors (Fujian Medical University), Fuzhou, China
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Steinel M, Shao H, Filzinger M, Lipphardt B, Brinkmann M, Didier A, Mehlstäubler TE, Lindvall T, Peik E, Huntemann N. Evaluation of a ^{88}Sr^{+} Optical Clock with a Direct Measurement of the Blackbody Radiation Shift and Determination of the Clock Frequency. Phys Rev Lett 2023; 131:083002. [PMID: 37683165 DOI: 10.1103/physrevlett.131.083002] [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] [Received: 12/15/2022] [Revised: 04/17/2023] [Accepted: 07/18/2023] [Indexed: 09/10/2023]
Abstract
We report on an evaluation of an optical clock that uses the ^{2}S_{1/2}→^{2}D_{5/2} transition of a single ^{88}Sr^{+} ion as the reference. In contrast to previous work, we estimate the effective temperature of the blackbody radiation that shifts the reference transition directly during operation from the corresponding frequency shift and the well-characterized sensitivity to thermal radiation. We measure the clock output frequency against an independent ^{171}Yb^{+} ion clock, based on the ^{2}S_{1/2}(F=0)→^{2}F_{7/2}(F=3) electric octupole (E3) transition, and determine the frequency ratio with a total fractional uncertainty of 2.3×10^{-17}. Relying on a previous measurement of the ^{171}Yb^{+} (E3) clock frequency, we find the absolute frequency of the ^{88}Sr^{+} clock transition to be 444 779 044 095 485.277(59) Hz. Our result reduces the uncertainty by a factor of 3 compared with the previously most accurate measurement and may help to resolve so far inconsistent determinations of this value. We also show that for three simultaneously interrogated ^{88}Sr^{+} ions, the increased number causes the expected improvement of the short-term frequency instability of the optical clock without degrading its systematic uncertainty.
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Affiliation(s)
- M Steinel
- Physikalisch-Technische Bundesanstalt, Bundesallee 100, 38116 Braunschweig, Germany
| | - H Shao
- Physikalisch-Technische Bundesanstalt, Bundesallee 100, 38116 Braunschweig, Germany
| | - M Filzinger
- Physikalisch-Technische Bundesanstalt, Bundesallee 100, 38116 Braunschweig, Germany
| | - B Lipphardt
- Physikalisch-Technische Bundesanstalt, Bundesallee 100, 38116 Braunschweig, Germany
| | - M Brinkmann
- Physikalisch-Technische Bundesanstalt, Bundesallee 100, 38116 Braunschweig, Germany
| | - A Didier
- Physikalisch-Technische Bundesanstalt, Bundesallee 100, 38116 Braunschweig, Germany
| | - T E Mehlstäubler
- Physikalisch-Technische Bundesanstalt, Bundesallee 100, 38116 Braunschweig, Germany
- Leibniz Universität Hannover, Welfengarten 1, 30167 Hannover, Germany
| | - T Lindvall
- VTT Technical Research Centre of Finland Ltd, National Metrology Institute VTT MIKES, P.O. Box 1000, 02044 VTT, Finland
| | - E Peik
- Physikalisch-Technische Bundesanstalt, Bundesallee 100, 38116 Braunschweig, Germany
| | - N Huntemann
- Physikalisch-Technische Bundesanstalt, Bundesallee 100, 38116 Braunschweig, Germany
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Shao H, Jian J, Peng D, Yao K, Abdulsalam S, Huang W, Kong L, Li C, Peng H. Recombinase Polymerase Amplification Coupled with CRISPR-Cas12a Technology for Rapid and Highly Sensitive Detection of Heterodera avenae and Heterodera filipjevi. Plant Dis 2023:PDIS02220386RE. [PMID: 36167511 DOI: 10.1094/pdis-02-22-0386-re] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
The cereal cyst nematodes Heterodera avenae and Heterodera filipjevi are recognized as cyst nematodes that infect cereal crops and cause severe economic losses worldwide. Rapid, visual detection of cyst nematodes is essential for more effective control of this pest. In this study, recombinase polymerase amplification (RPA) combined with clustered regularly interspaced short palindromic repeats (CRISPR)/Cas12a (formerly known as cpf1) was developed for the rapid detection of H. avenae and H. filipjevi from infested field samples. The RPA reaction was performed at a wide range of temperatures from 35 to 42°C within 15 min. There was no cross-reactivity between H. avenae, H. filipjevi, and the common closely related plant-parasitic nematodes, indicating the high specificity of this assay. The detection limit of RPA-Cas12a was as low as 10-4 single second-stage juvenile (J2), 10-5 single cyst, and 0.001 ng of genomic DNA, which is 10 times greater than that of RPA-lateral flow dipstick (LFD) detection. The RPA-Cas12a assay was able to detect 10-1 single J2 of H. avenae and H. filipjevi in 10 g of soil. In addition, the RPA-LFD assay and RPA-Cas12a assays could both quickly detect H. avenae and H. filipjevi from naturally infested soil, and the entire detection process could be completed within 1 h. These results indicated that the RPA-Cas12a assay developed herein is a simple, rapid, specific, sensitive, and visual method that can be easily adapted for the quick detection of H. avenae and H. filipjevi in infested fields.
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Affiliation(s)
- Hudie Shao
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, P.R. China
- College of Agriculture, Yangtze University, Jingzhou, Hubei 434025, P.R. China
| | - Jinzhuo Jian
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, P.R. China
| | - Deliang Peng
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, P.R. China
| | - Ke Yao
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, P.R. China
- College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310058, P.R. China
| | - Sulaiman Abdulsalam
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, P.R. China
- Division of Agricultural Colleges/Department of Crop Protection, Ahmadu Bello University, Zaria 810107, Nigeria
| | - Wenkun Huang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, P.R. China
| | - Lingan Kong
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, P.R. China
| | - Chuanren Li
- College of Agriculture, Yangtze University, Jingzhou, Hubei 434025, P.R. China
| | - Huan Peng
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, P.R. China
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Shao H, Zhang P, Peng D, Huang W, Kong LA, Li C, Liu E, Peng H. Current advances in the identification of plant nematode diseases: From lab assays to in-field diagnostics. Front Plant Sci 2023; 14:1106784. [PMID: 36760630 PMCID: PMC9902721 DOI: 10.3389/fpls.2023.1106784] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Accepted: 01/10/2023] [Indexed: 06/18/2023]
Abstract
Plant parasitic nematodes (PPNs) cause an important class of diseases that occur in almost all types of crops, seriously affecting yield and quality and causing great economic losses. Accurate and rapid diagnosis of nematodes is the basis for their control. PPNs often have interspecific overlays and large intraspecific variations in morphology, therefore identification is difficult based on morphological characters alone. Instead, molecular approaches have been developed to complement morphology-based approaches and/or avoid these issues with various degrees of achievement. A large number of PPNs species have been successfully detected by biochemical and molecular techniques. Newly developed isothermal amplification technologies and remote sensing methods have been recently introduced to diagnose PPNs directly in the field. These methods have been useful because they are fast, accurate, and cost-effective, but the use of integrative diagnosis, which combines remote sensing and molecular methods, is more appropriate in the field. In this paper, we review the latest research advances and the status of diagnostic approaches and techniques for PPNs, with the goal of improving PPNs identification and detection.
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Affiliation(s)
- Hudie Shao
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
- College of Agriculture, Yangtze University, Jingzhou, Hubei, China
| | - Pan Zhang
- College of Agriculture, Yangtze University, Jingzhou, Hubei, China
| | - Deliang Peng
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Wenkun Huang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Ling-an Kong
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Chuanren Li
- College of Agriculture, Yangtze University, Jingzhou, Hubei, China
| | - Enliang Liu
- Grain Crops Institute, XinJiang Academy of Agricultural Sciences, Urumqi, China
| | - Huan Peng
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
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Liu MY, Shao H, Yang-Yan W, Peng D, Yu J, Jia J, Peng H, Li C, Abdulsalam S, Yu X, Li C, Huang W. Meloidogyne graminicola population structure in China suggests a south-to-north expansion. Plant Dis 2023. [PMID: 36691277 DOI: 10.1094/pdis-08-22-1796-re] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
The distribution range of root-knot nematode Meloidogyne graminicola is rapidly expanding, posing a severe threat to rice production. In this study, the sequences of cytochrome oxidase subunit I (COI) genes of rice M. graminicola populations from all reported provinces in China were amplified and sequenced by PCR. The distribution pattern and phylogenetic tree showed that all 54 M. graminicola populations in China have distinct geographical distribution characteristics, specifically Cluster 1 (southern China), Cluster 2 (central south and southwest China), and Cluster 3 (central and eastern China). The high haplotype diversity (Hd = 0.646) and low nucleotide diversity (π= 0.00682), combined with the negative value of Tajima's D (-1.252) and Fu's FS (-3.06764) suggested that all nematode populations were expanding. The existence of high genetic differentiation (Fst = 0.5933) and low gene flow (Nm = 0.3333) indicated that there was a block of gene exchange between most populations. Mutation accumulation with population expansion might be directly responsible for the high genetic differentiation, so the tested nematode population showed high within-group genetic variation (96.30%). The haplotype Hap8 was located at the bottom of the network topology, with the widest distribution and the highest frequency (59.26%), indicating that it was the ancestral haplotype. The populations in Cluster 3 were newly invasive according to the lowest frequency of occurrence of Hap8, the highest number of endemic haplotypes and the highest total haplotype frequency (60%). On the contrary, Cluster 1 having the highest genetic diversity (Hd = 0.772, π = 0.01127) indicated that it was the most primitive. Interestingly, the highest gene flow (Nm > 1), lowest genetic differentiation (Fst ≤ 0.33), and closest genetic distance (0.000) only occurred between Guangdong / Hainan population and others, which suggested that there might be channels for gene exchange between them and long-distance dispersal occurred. This suggestion is further confirmed by the weak correlation between genetic distance and geographical distance. Based on these data, a hypothesis can be drawn that M. graminicola populations in China were spreading from south to north, specifically from Guangdong / Hainan provinces to other regions. Natural selection (including anthropogenic) and genetic drift were the main drivers of their evolution. Coincidentally, this hypothesis was consistent with the gradual warming trend and the chronological order of reporting these populations. The main factors, influencing current M. graminicola population expansion and distribution patterns, might be geography, climate, long-distance seedling transport, inter-regional operations of agricultural machinery, and rotation mode. It reminds human beings of the necessity to be vigilant about preventing nematode disease according to local conditions all year round.
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Affiliation(s)
- Mao-Yan Liu
- Xichang University, 381931, School of Agricultural Sciences, Xichang, Sichuan, China
- Hunan Agricultural University, 12575, College of Plant protection, Changsha, China;
| | - Hudie Shao
- Chinese Academy of Agricultural Sciences Institute of Plant Protection, 243827, Beijing, Beijing, China;
| | - Wu Yang-Yan
- Xichang University, 381931, School of Foreign Languages, Xichang, Sichuan, China;
| | - Deliang Peng
- Institute of Plant Protection, Chinese Academy of Agricultural Sciences, West Yuanmingyuan Road No.2,, Beijing, China, 100193;
| | | | | | - Huan Peng
- Institute of Plant Protection, Chinese Academy of Agricultural Sciences, beijing china, Beijing, China, 100193;
| | - Chunren Li
- Yangtze University, 47897, Jingzhou, Hubei , China;
| | - Sulaiman Abdulsalam
- Chinese Academy of Agricultural Sciences Institute of Plant Protection, 243827, Plant Pathology, West Yuanmingyuan Road N0.2, Institute of Plant Protection, Graduate School of Chinese Academy of Agricultural Sciences, Beijing, China, Department of Crop Protection, Faculty of Agricultural Sciences, Ahmadu Bello University, Beijing, Beijing, China, 100193
- Ahmadu Bello University Division of Agriculture Colleges, 223219, Ahmadu Bello University, Zaria, N0.4 Nagwamatse Crescent, Area A Staff QTRS, ABU, Zaria, Department of Crop Protection, Faculty of Agricultural Sciences, Ahmadu Bello Un, N0.4 Nagwamatse Crescent, Area A Staff QTRS, ABU, Zaria, Zaria, Kaduna, Nigeria, 810107;
| | | | | | - Wenkun Huang
- Chinese Academy of Agricultural Sciences, The Key Laboratory for Biology of Insect Pests and Plant Disease, Institute of Plant Protection, West Yuanmingyuanroad No 2, Beijing, Beijing, China, 100193;
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Kuo KH, Oluyadi A, Shao H, Morris S, Zaidi AU, Beers EJV, Thein SL. A PHASE 2/3, RANDOMIZED, DOUBLE-BLIND, PLACEBO-CONTROLLED STUDY OF MITAPIVAT IN PATIENTS WITH SICKLE CELL DISEASE. Hematol Transfus Cell Ther 2022. [DOI: 10.1016/j.htct.2022.09.021] [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: 11/11/2022] Open
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Shao H, Xue Q, Yao K, Cui J, Huang W, Kong L, Li C, Li H, Peng D, Smiley RW, Peng H. Origin and Phylogeography of Chinese Cereal Cyst Nematode Heterodera avenae Revealed by Mitochondrial COI Sequences. Phytopathology 2022; 112:1988-1997. [PMID: 35509208 DOI: 10.1094/phyto-12-21-0532-r] [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: 06/14/2023]
Abstract
Heterodera avenae, a globally distributed plant-parasitic nematode, is one of the most significant pests on cereal crops. In China, it is widely distributed in cereal-growing areas of 16 provinces and causes serious yield losses. In the present study, a total of 98 populations of H. avenae were collected from major wheat-growing regions in China and six other countries. The mitochondrial COI genes were amplified and analyzed. Forty-one mitochondrial COI haplotypes were identified, suggesting a high genetic diversity and endemism level of H. avenae in China. Phylogenetic analysis showed that H. avenae populations in China were divided into four clades. Significant evolutionary and genetic differences were found between Chinese (except Hubei) and foreign populations. Hap1, the most widely distributed haplotype, was considered to be a separate evolutionary origin in China. The gene flow of H. avenae from the northwestern region to the north China region and Huang-Huai-Hai region was significant, so as the direction between north China and Huang-Huai-Hai region. We speculate that water flowing from the Yellow River and mechanical harvesters promoted gene exchange among these groups. A distance-based redundancy analysis showed that genetic distances observed among H. avenae populations were explained foremost not only by geographic distance but also by temperature and precipitation. This study provides theoretical support for the origin and spread of H. avenae populations in China and elsewhere in the world.
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Affiliation(s)
- Hudie Shao
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, P. R. China
- College of Agriculture, Yangtze University, Jingzhou, Hubei 434025, P. R. China
| | - Qin Xue
- Key Laboratory of Integrated Management of Crop Disease and Pests, Ministry of Education, Department of Plant Pathology, Nanjing Agricultural University, Nanjing 210095, P. R. China
| | - Ke Yao
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, P. R. China
- College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, P. R. China
| | - Jiangkuan Cui
- State Key Laboratory of Wheat and Maize Crop Science/College of Plant Protection, Henan Agricultural University, Zhengzhou, 450002, P. R. China
| | - Wenkun Huang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, P. R. China
| | - Lingan Kong
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, P. R. China
| | - Chuanren Li
- College of Agriculture, Yangtze University, Jingzhou, Hubei 434025, P. R. China
| | - Hongmei Li
- Key Laboratory of Integrated Management of Crop Disease and Pests, Ministry of Education, Department of Plant Pathology, Nanjing Agricultural University, Nanjing 210095, P. R. China
| | - Deliang Peng
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, P. R. China
| | - Richard W Smiley
- Columbia Basin Agricultural Research Center, Oregon State University, Pendleton, Oregon, 97801, U.S.A
| | - Huan Peng
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, P. R. China
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Banh L, Chan M, Cheung K, Shao H, Young E, Viswanathan S. Tissue Engineering, Embryonic, Organ and Other Tissue Specific Stem Cells: DEVELOPMENT AND APPLICATION OF AN ORGAN-ON-A-CHIP SYSTEM FOR THE JOINT TO MODEL AND STUDY OSTEOARTHRITIS. Cytotherapy 2022. [DOI: 10.1016/s1465-3249(22)00413-3] [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: 11/29/2022]
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Xing C, Yang ZF, Bo CX, Tang Q, Jia Q, Zhang ZL, Shao H. [Interventional effect of asiaticosdide on rats exposed to silica dust]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2022; 40:12-17. [PMID: 35255555 DOI: 10.3760/cma.j.cn121094-20210420-00218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Objective: To investigate the effect of asiaticoside for fibrosis in lung tissues of rats exposed to silica and to explore its possible mechanism. Methods: 144 SD male rats were randomly divided into control group, model group, positive drug control group, asiaticoside high-dose group, medium-dose group and low-dose group, each group included 24 rats. Rats in the control group were perfused with 1.0 ml of normal saline, and the other groups were given 1.0 ml 50 mg/ml SiO(2) suspension. Gavage of herbal was given from the next day after model establishment, once a day. Rats in the positive drug control group were administration with 30 mg/kg tetrandrine and rats in the low-dose group, medium-dose group and high-dose group were given 20 mg/kg, 40 mg/kg and 60 mg/kg asiaticoside for fibrosis respectively. Rats in the control group and the model group were given 0.9% normal saline. The rats were sacrificed in on the 14th, 28th and 56th day after intragastric administration and collect the lung tissues to detect the content of hydroxyproline, TGF-β(1) and IL-18, observe the pathological changes of the lung tissues by HE and Masson staining and determine the expressions of Col-I, a-SMA, TGF-β in lung tissues by Western Blot. Results: On the 14th day, 28th day and 56th day after model establishment, the lung tissues of rats in the model group showed obvious inflammatory response and accumulation of collagen fibers, and the degree of inflammation and fibrosis increased with time. The intervention of asiaticoside could effectively inhibit the pathological changes of lung tissues. The contents of hydroxyproline, IL-18 and TGF-β1 in lung tissues of model group were higher than those in the control group (P<0.05) , while the level of hydroxyproline, IL-18 and TGF-β1 in asiaticoside groups were significantly decreased, and the difference was statistically signicant (P<0.05) . Compared with the control group, the expression levels of Col-I, TGF-β1and α-SMA in lung tissue of model group were increased (P<0.05) , while the expression level of Col-I, TGF-β1 and α-SMA were decreased after the intervention of asiaticoside, and the difference was statistically signicant (P<0.05) . Conclusion: Asiaticoside can inhibit the increase of Col-I, TGF-β1 and α-SMA content in the SiO(2)-induced lung tissues of rats, reduce the release of TGF-β1 and IL-18 inflammatory factors in lung tissue, and then inhibit the synthesis and deposition of extracellular matrix in rat lung tissue, and improve silicosis fibrosis.
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Affiliation(s)
- C Xing
- Shandong First Medical University (Shandong Academy of Medical Sciences), Shandong Academy of Occupational Health and Occupational Medicine, Jinan 250062, China
| | - Z F Yang
- Shandong First Medical University (Shandong Academy of Medical Sciences), Shandong Academy of Occupational Health and Occupational Medicine, Jinan 250062, China
| | - C X Bo
- Shandong First Medical University (Shandong Academy of Medical Sciences), Shandong Academy of Occupational Health and Occupational Medicine, Jinan 250062, China
| | - Q Tang
- Shandong First Medical University (Shandong Academy of Medical Sciences), Shandong Academy of Occupational Health and Occupational Medicine, Jinan 250062, China
| | - Q Jia
- Shandong First Medical University (Shandong Academy of Medical Sciences), Shandong Academy of Occupational Health and Occupational Medicine, Jinan 250062, China
| | - Z L Zhang
- Shandong First Medical University (Shandong Academy of Medical Sciences), Shandong Academy of Occupational Health and Occupational Medicine, Jinan 250062, China
| | - H Shao
- Shandong First Medical University (Shandong Academy of Medical Sciences), Shandong Academy of Occupational Health and Occupational Medicine, Jinan 250062, China
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Yang HC, Xing ZK, Shao H, Tan XW, Wang EQ, Liao Y, Chen HJ, Wu XW, Chen XL, Zhang SJ. The expression of cytokeratin and apoptosis-related molecules in echinococcosis related liver injury. Mol Biochem Parasitol 2022; 248:111455. [PMID: 35016896 DOI: 10.1016/j.molbiopara.2022.111455] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Revised: 12/29/2021] [Accepted: 01/06/2022] [Indexed: 10/25/2022]
Abstract
The study aimed to investigate the expression of cytokeratin and apoptosis-related molecules in the livers of two types of hepatic echinococcosis mice models and to preliminarily explore the relationship between the expression of cytokeratin and apoptosis in echinococcosis related liver injury. We established a mouse model infected by Echinococcus granulosus and Echinococcus multilocularis and observed the expression of cytokeratin and apoptosis related proteins in the two types of hepatic echinococcosis tissues during different stages by immunohistochemical staining. A co-culture model was established using normal hepatocytes and different concentrations of E. granulosus and E. multilocularis protoscoleces. Cell Counting Kit-8 was used to detect cell proliferation, flow cytometry was used to detect hepatocyte apoptosis, and western blot was used to quantify cytokeratin and apoptosis-related proteins, such as caspase3, caspase9, Bcl-2, and Bax. Surgical specimens were obtained from patients with hepatic echinococcosis to analyze the expressions of cytokeratin, caspase3, caspase9, Bcl-2, and Bax by western blot. The expressions of cytokeratin and caspase3 were analyzed by immunohistochemistry. The qRT-PCR method was used to determine the expression of CK8 and CK18 in the liver tissues. In vivo experiments showed that compared to that in the control group, the cytokeratin and caspase3 proteins in the liver tissues of the two types of hepatic echinococcosis were strongly expressed around the lesions of liver echinococcosis; there was a difference between cytokeratin expression of the two different echinococcosis parasites in the liver. Echinococcus granulosus and Echinococcus multilocularis in the co-culture model in vitro could promote the expression of CK, caspase3, caspase9, and Bax protein, decrease the expression of Bcl-2, promote hepatocyte apoptosis, and inhibit cell proliferation; in clinical samples, we found that compared with that in the normal tissues, the expression of cytokeratin, caspase3, caspase9, and Bax in echinococcus tissues was high, but that in Bcl-2 was low. Furthermore, the expression of CK8 and CK18 mRNA were higher in echinococcus tissues than that in the normal tissues and immunohistochemistry analysis also showed that cytokeratin and caspase3 levels were higher in echinococcus tissues than that in the normal tissues. The expression of cytokeratin and apoptosis-related molecules, reflecting liver damage, is high in the liver and is caused due to hepatic echinococcosis. This study provides the first evidence of cytokeratin could be useful for evaluating liver tissue damage caused by echinococcus infection.
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Affiliation(s)
- H C Yang
- School of Medicine, Shihezi University, Shihezi, 832008, Xinjiang, China; Department of Hepatobiliary Surgery, First Affiliated Hospital, School of Medicine, Shihezi University, Shihezi, 832008, Xinjiang, China
| | - Z K Xing
- School of Medicine, Shihezi University, Shihezi, 832008, Xinjiang, China; Department of Hepatobiliary Surgery, First Affiliated Hospital, School of Medicine, Shihezi University, Shihezi, 832008, Xinjiang, China
| | - H Shao
- School of Medicine, Shihezi University, Shihezi, 832008, Xinjiang, China
| | - X W Tan
- School of Medicine, Shihezi University, Shihezi, 832008, Xinjiang, China
| | - E Q Wang
- School of Medicine, Shihezi University, Shihezi, 832008, Xinjiang, China
| | - Y Liao
- School of Medicine, Shihezi University, Shihezi, 832008, Xinjiang, China
| | - H J Chen
- School of Medicine, Shihezi University, Shihezi, 832008, Xinjiang, China
| | - X W Wu
- Department of Hepatobiliary Surgery, First Affiliated Hospital, School of Medicine, Shihezi University, Shihezi, 832008, Xinjiang, China
| | - X L Chen
- Department of Immunology, School of Medicine, Shihezi University, Shihezi, 832002, Xinjiang, China
| | - S J Zhang
- Department of Hepatobiliary Surgery, First Affiliated Hospital, School of Medicine, Shihezi University, Shihezi, 832008, Xinjiang, China.
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Abdulsalam S, Peng H, Yao Y, Fan L, Jiang R, Shao H, Zhang Y, Huang W, Kong L, Peng D. Prevalence and Molecular Diversity of Plant-Parasitic Nematodes of Yam (Dioscorea spp.) in China, with Focus on Merlinius spp. Biology 2021; 10:biology10121299. [PMID: 34943214 PMCID: PMC8699026 DOI: 10.3390/biology10121299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Revised: 11/30/2021] [Accepted: 12/02/2021] [Indexed: 11/16/2022]
Abstract
Simple Summary Plant nematodes (PPNs) have been documented as economically important pests of yam in different parts of the world with Pratylenchus spp. and Meloidogyne spp. being the most widespread and destructive pests in Asia, causing significant yield losses. The primary inspiration for this study is the scarcity of information about nematode pests of yam in China and the fact that no previous study has looked into the prevalence, diversity, and integrative taxonomy of PPNs species in China cropping systems, as well as their consequences on yam cultivation. Therefore, the objectives of this study were to conduct a nematode study in south-eastern China to (i) record the prevalence and diversity of PPNs of cultivated yam with emphasis on the five prominent genera identified, and (ii) characterized morphologically, morphometrically, and molecularly Merlinius spp. The high prevalence of the Merlinius spp. revealed that the species may be more important to yam than previously thought. Conclusively, this study provided useful baseline PPNs data for yam in China. Hence, future study should focus on; developing innovative, environmentally friendly, and cost-effective nematode management strategies to control this pest that damage farmers’ yam fields in China, and constantly updating information of PPNs species found to allow proactive measures in terms of their spread and management. Abstract There is little information about nematode pests associated with yam in China. Between 2020 and 2021, surveys of yam fields were conducted to investigate the abundance and prevalence of plant-parasitic nematodes in major yam growing areas. A total of 110 bulk soil samples from the yam rhizosphere and 48 yam tubers were collected from seven counties in Jiangxi and Shandong provinces. Standard protocols were used to extract nematodes from soil and tubers and identified at the genus level. In this study, 16 species and 13 nematode genera were recorded. The five most prominent species on the yam rhizosphere according to mean population densities were Pratylenchus coffeae (291/individuals), Meloidogyne (262/individuals), Rotylenchulus reniformis (225/individuals), Merlinius (224/individuals), and Helicotylenchus dihystera (171/individuals). In the tubers, the three most prominent species were Pratylenchus coffeae (415/individuals), Meloidogyne (331/individuals), and Rotylenchulus reniformis (115/individuals). These species were verified with appropriate molecular analysis. The high prevalence of the ectoparasite (Merlinius spp.) on the rhizosphere of yam also revealed that Merlinius spp. May be more important to yam than previously thought. Morphological and molecular analyses further confirmed the identity of the species as Merlinius brevidens and were characterized for the first time on yam in China. Minor morphometrical differences (slightly longer body and stylet) were observed in Chinese populations of M. brevidens compared to the original description. Additionally, this study reveals that M. brevidens isolated from China showed a higher nucleotide sequence in the ITS region compared to M. brevidens populations from India. This finding provides baseline information on the nematode pest occurrence on yam in China and calls for effective management.
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Affiliation(s)
- Sulaiman Abdulsalam
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China; (S.A.); (H.P.); (R.J.); (H.S.); (Y.Z.); (W.H.); (L.K.)
- Department of Crop Protection, Division of Agricultural Colleges, Ahmadu Bello University, Zaria 810107, Nigeria
| | - Huan Peng
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China; (S.A.); (H.P.); (R.J.); (H.S.); (Y.Z.); (W.H.); (L.K.)
| | - Yingjuan Yao
- Institute of Applied Agricultural Micro-Organisms, Jiangxi Academy of Agricultural Sciences, Nanchang 330200, China; (Y.Y.); (L.F.)
| | - Linjuan Fan
- Institute of Applied Agricultural Micro-Organisms, Jiangxi Academy of Agricultural Sciences, Nanchang 330200, China; (Y.Y.); (L.F.)
| | - Ru Jiang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China; (S.A.); (H.P.); (R.J.); (H.S.); (Y.Z.); (W.H.); (L.K.)
| | - Hudie Shao
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China; (S.A.); (H.P.); (R.J.); (H.S.); (Y.Z.); (W.H.); (L.K.)
| | - Yingdong Zhang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China; (S.A.); (H.P.); (R.J.); (H.S.); (Y.Z.); (W.H.); (L.K.)
| | - Wenkun Huang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China; (S.A.); (H.P.); (R.J.); (H.S.); (Y.Z.); (W.H.); (L.K.)
| | - Ling’an Kong
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China; (S.A.); (H.P.); (R.J.); (H.S.); (Y.Z.); (W.H.); (L.K.)
| | - Deliang Peng
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China; (S.A.); (H.P.); (R.J.); (H.S.); (Y.Z.); (W.H.); (L.K.)
- Correspondence: ; Tel.: +86-13381056763
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Li SX, Pang XR, Yan HY, Zhang J, Jia Q, Li C, Shao H, Yu GC. [Interventional effect of metformin on pulmonary inflammation and pulmonary fibrosis in silicotic rats]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2021; 39:726-732. [PMID: 34727651 DOI: 10.3760/cma.j.cn121094-20200930-00552] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the interventional effect of metformin on pulmonary inflammation and pulmonary fibrosis in silicotic rats. Methods: In April 2019, 48 Wistar male rats of SPF grade were randomly divided into negative control group, metformin control group, silicon dioxide (SiO2) model group, low, medium and high dose metformin intervention group according to the random number table method, 8 rats in each group. The SiO2 model group and the low, medium and high dose metformin intervention groups were given 1 ml 50 mg/ml of SiO2 by intratracheal instillation, the negative control group and the metformin control group were given 1 ml normal saline by intratracheal instillation. 24 hours later, the low, medium and high dose metformin intervention groups and the metformin control group were treated with 100, 200, 400 and 400 mg/kg metformin daily, the control and SiO2 model groups received normal saline daily. Then the rats were sacrificed at the 28th day after SiO2 exposure. The changes of rat body weight and pathological examination of rat lung tissue were observed, and the lung organ coefficient, the content of hydroxyproline (HYP) , the expression levels of inflammatory factors transforming growth factor beta1 (TGF-β1) , tumor necrosis factor-alpha (TNF-α) , interleukin-1beta (IL-1β) and the protein expression of E-cadherin (E-Cad) , Vimentin, α-SMA were detected. Results: Compared with the negative control group, SiO2 model group had a significant decrease in the body weight of rats (P<0.05) , lung organ coefficient, alveolitis and fibrosis scores, HYP content and the levels of TGF-β1, TNF-α, IL-1β were all significantly increased (P<0.05) . Compared with the SiO2 model group, the weights of the rats in the medium and high dose intervention group of metformin increased significantly (P<0.05) . And after intervention with different doses of metformin, the lung organ coefficient, alveolitis and fibrosis scores, HYP content and the levels of TGF-β1, TNF-α and IL-1β were significantly decreased (P<0.05) . Immunohistochemistry and Western blotting results showed that compared with the negative control group, the expression of E-Cad of the SiO2 model group was decreased, and the expression levels of Vimentin and α-SMA were significantly increased (P<0.05) . After metformin intervention, the expression of E-Cad was significantly increased, the expression levels of Vimentin and α-SMA were significantly decreased (P<0.05) . Conclusion: Metformin can reduce lung tissue inflammation and fibrosis in rats exposed to SiO2 dust, which may be related to reducing the expression of inflammatory factors in lung tissue and inhibiting the EMT process.
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Affiliation(s)
- S X Li
- Shandong Academy of Occupational Health and Occupational Medicine, Shandong First Medical University & Shangdong Academy of Medical Sciences, Jinan 250062, China
| | - X R Pang
- Shandong Academy of Occupational Health and Occupational Medicine, Shandong First Medical University & Shangdong Academy of Medical Sciences, Jinan 250062, China
| | - H Y Yan
- Science and Technology Information Institute of Shandong Province, Jinan 250101, China
| | - J Zhang
- Shandong Academy of Occupational Health and Occupational Medicine, Shandong First Medical University & Shangdong Academy of Medical Sciences, Jinan 250062, China
| | - Q Jia
- Shandong Academy of Occupational Health and Occupational Medicine, Shandong First Medical University & Shangdong Academy of Medical Sciences, Jinan 250062, China
| | - C Li
- Shandong Academy of Occupational Health and Occupational Medicine, Shandong First Medical University & Shangdong Academy of Medical Sciences, Jinan 250062, China
| | - H Shao
- Shandong Academy of Occupational Health and Occupational Medicine, Shandong First Medical University & Shangdong Academy of Medical Sciences, Jinan 250062, China
| | - G C Yu
- Shandong Academy of Occupational Health and Occupational Medicine, Shandong First Medical University & Shangdong Academy of Medical Sciences, Jinan 250062, China Neck-Shoulder and Lumbocrural Pain Hospital of Shandong First Medical University, Jinan 250062, China
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Guo XY, Shao H, Yuan PB, Zhao YY. [Diagnosis, treatment and outcome of adnexal torsion at different gestational weeks during pregnancy]. Zhonghua Yi Xue Za Zhi 2021; 101:2159-2163. [PMID: 34275252 DOI: 10.3760/cma.j.cn112137-20201126-03197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the clinical characteristics, diagnosis, treatment and outcome of adnexal torsion at different gestational weeks during pregnancy. Methods: A retrospective analysis was conducted of the clinical data of 24 pregnancy patients with adnexal torsion, aged 21-38 (30.6±4.4) years old, who were admitted and delivered in Peking University Third Hospital from 2015 to 2019. According to the gestational age, all patients were divided into two groups:<28 weeks group (11cases) and ≥28 weeks group (13 cases), to compare the intergroup differences in clinical characteristics, treatment and outcome, and the differences of clinical data and outcome between two groups were compared. Results: The proportion of patients with twin pregnancy and assisted reproductive technology in the<28 weeks group was significantly higher than that in the ≥28 weeks group (5/11 vs 1/13, 8/11 vs 1/13, P<0.05). No significant differences between the two groups were recorded in terms of the size of the adnexal mass, the cycles of torsion and the duration from onset to operation. Compared with the≥28 weeks group, the adnexal removal rate of the<28 weeks group was lower (3/11 vs 6/13), but the difference was not statistically significant. The proportion of blood flow signals of ultrasound before operation, cases undergoing laparoscopic surgery and cases whose pathological findings were physiological cysts in the<28 weeks group were significantly higher than that in the ≥28 weeks group (8/11 vs 4/13, 8/11 vs 0, 8/11vs 4/13; P<0.05). Concerning the pregnancy outcomes, there was no difference in the mode of delivery, the delivery gestational age and the body weight of newborns between the two groups. Conclusions: The patients with adnexal torsion prior to 28 weeks(<28 weeks)of pregnancy were more likely to be conceived by assisted reproductive technologies, and the etiology was more likely to be ovarian physiological cysts. Both laparoscopy and laparotomy were safe and effective in the treatment of adnexal torsion with good outcome for mother and infant in the study.
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Affiliation(s)
- X Y Guo
- Department of Obstetrics and Gynecology, Peking University Third Hospital,National Clinical Research Center for Obstetrics and Gynecology(Peking University Third Hospital),National Center for Healthcare Quality Management in Obstetrics, Beijing 100191, China
| | - H Shao
- Department of Obstetrics and Gynecology, Peking University Third Hospital,National Clinical Research Center for Obstetrics and Gynecology(Peking University Third Hospital),National Center for Healthcare Quality Management in Obstetrics, Beijing 100191, China
| | - P B Yuan
- Department of Obstetrics and Gynecology, Peking University Third Hospital,National Clinical Research Center for Obstetrics and Gynecology(Peking University Third Hospital),National Center for Healthcare Quality Management in Obstetrics, Beijing 100191, China
| | - Y Y Zhao
- Department of Obstetrics and Gynecology, Peking University Third Hospital,National Clinical Research Center for Obstetrics and Gynecology(Peking University Third Hospital),National Center for Healthcare Quality Management in Obstetrics, Beijing 100191, China
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Shao H, Fu Y, Zhang P, You C, Li C, Peng H. Transcriptome analysis of resistant and susceptible mulberry responses to Meloidogyne enterolobii infection. BMC Plant Biol 2021; 21:338. [PMID: 34271854 PMCID: PMC8285880 DOI: 10.1186/s12870-021-03128-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/01/2020] [Accepted: 04/26/2021] [Indexed: 06/13/2023]
Abstract
BACKGROUND Mulberry (Morus alba L.) is an important sericulture crop; however, root-knot nematode infection seriously limits its production. Understanding the mechanism of interaction between mulberry and nematode is important for control of infection. RESULTS Using sequencing and de novo transcriptome assembly, we identified 55,894 unigenes from root samples of resistant and susceptible mulberry cultivars at different stages after infection with the nematode Meloidogyne enterolobii; 33,987 of these were annotated in the Nr, SWISS-PROT, KEGG, and KOG databases. Gene ontology and pathway enrichment analyses of differentially expressed genes (DEGs) revealed key genes involved in hormone metabolic processes, plant hormone signal transduction, flavonoid biosynthesis, phenylpropanoid biosynthesis, and peroxisomal and photosynthetic pathways. Analysis of key trends in co-expression networks indicated that expression of unigenes 0,015,083, 0,073,272, 0,004,006, and 0,000,628 was positively correlated with resistance to M. enterolobii. Unigene 0015083 encodes tabersonine 16-O-methyltransferase (16OMT), which is involved in alkaloid biosynthesis. Unigene 0073272 encodes a transcription factor contributing to nitric oxide accumulation during plant immune responses. Unigenes 0,004,006 and 0,000,628 encode ERF and MYB transcription factors, respectively, involved in plant hormone signaling. We verified the accuracy of transcriptome sequencing results by RT-qPCR of 21 DEGs. CONCLUSIONS The results of this study increase our understanding of the resistance mechanisms and candidate genes involved in mulberry-M. enterolobii interaction. Thus, our data will contribute to the development of effective control measures against this pathogen.
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Affiliation(s)
- Hudie Shao
- College of Agriculture, Yangtze University, Jingzhou, 434025 Hubei China
| | - Yu Fu
- The Innovative Institute for Plant Health, Zhongkai University of Agriculture and Engineering, Guangzhou, 510225 Guangdong China
| | - Pan Zhang
- College of Agriculture, Yangtze University, Jingzhou, 434025 Hubei China
| | - Chunping You
- The Innovative Institute for Plant Health, Zhongkai University of Agriculture and Engineering, Guangzhou, 510225 Guangdong China
| | - Chuanren Li
- College of Agriculture, Yangtze University, Jingzhou, 434025 Hubei China
| | - Huan Peng
- StateKey Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100193 P. R. China
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Zhang CP, Toshmatov ZO, Zhou SX, Li WJ, Zhang C, Shao H. Chemical Composition and Phytotoxic Activity of Essential Oil from Senecio erucifolius. Chem Nat Compd 2021. [DOI: 10.1007/s10600-021-03423-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Men JL, Men JY, Zhang YJ, Zhao L, Zhang J, Zhang ZH, Zhang D, Shao H, Lu QY. [Investigation on occupational hazards in 20 automobile manufacturing enterprises in Shandong Province]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2021; 39:198-202. [PMID: 33781036 DOI: 10.3760/cma.j.cn121094-20200509-00245] [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: To investigate the current situation of occupational hazards in automobile manufacturing enterprises in Shandong Province. Methods: From February to May 2019, the convenience sampling method was adopted to conduct on-site occupational health surveys with 20 automobile manufacturing enterprises in Shandong Province as the survey subjects, to detect the occupational hazard factors in the workplaces and individual exposure levels, and to analyze the occupational health check results of operators. Results: There were 13 small-sized, 4 medium-sized and 3 large-sized enterprises among the 20 automobile manufacturing enterprises. The detection results of benzene and toluene in the workplaces met the occupational exposure limits, and the detection results of welding fumes, manganese and its compounds, and xylene exceed the occupational exposure limits. The maximum short-term exposure concentration (C(STE)) of welding fume in the air of workplaces was 24.23 mg/m(3), and the over-standard rate was 11.0% (16/146) . The maximum time-weighted average concentration (C(TWA)) of welding fume of operators is 10.60 mg/m(3), and the over-standard rate was 11.0% (8/73) . The maximum C(STE) of manganese and its compounds in the air of workplaces was 0.879 mg/m(3), and the of manganese and its compounds of operators was 0.175 mg/m(3), and the over-standard rate was 5.7% (4/70) . The maximum xylene C(STE) in the air of workplaces was 230.00 mg/m(3), and the over-standard rate was 3.9% (2/51) . The maximum xylene C(TWA) of operators was 70.40 mg/m(3), the over-standard rate was 3.6% (1/28) . Among the 4775 workers exposed to occupational hazards, 38 (0.80%) were suspected of electric welder's pneumoconiosis, 27 (0.57%) were suspected of manganese poisoning and 31 (0.65%) were suspected of chronic low-concentration benzene and benzene series poisoning. The detection rates of suspected occupational diseases among workers in small and medium-sized enterprises were relatively high, 2.86% (30/1048) and 4.51% (51/1132) respectively. There was a statistically significant difference in the detection rates of suspected occupational diseases among the operators of different scale automobile manufacturers (P<0.05) . Conclusion: The exposure levels of electric welding fumes, manganese and its compounds in welding jobs and xylene exposure levels in spray painting jobsin Shandong Province's automobile manufacturing enterprises are more serious. The supervision and management of occupational hygiene should be strengthened, the working environment should be improved, and the health of welding and painting workers should be protected.
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Affiliation(s)
- J L Men
- Shandong Academy of Occupational Health and Occupational Medicine, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan 250062, China
| | - J Y Men
- Jinan Rail Transit Group Co., Ltd., Jinan 250014, China
| | - Y J Zhang
- Jinan Haohong Weiye Testing Technology Co., Ltd., Jinan 250101, China
| | - L Zhao
- Jinan Haohong Weiye Testing Technology Co., Ltd., Jinan 250101, China
| | - J Zhang
- Shandong Academy of Occupational Health and Occupational Medicine, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan 250062, China
| | - Z H Zhang
- Shandong Academy of Occupational Health and Occupational Medicine, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan 250062, China
| | - D Zhang
- Health Commission of Shandong Province, Jinan 250100, China
| | - H Shao
- Shandong Academy of Occupational Health and Occupational Medicine, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan 250062, China
| | - Q Y Lu
- Jinan Haohong Weiye Testing Technology Co., Ltd., Jinan 250101, China
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Lange R, Huntemann N, Rahm JM, Sanner C, Shao H, Lipphardt B, Tamm C, Weyers S, Peik E. Improved Limits for Violations of Local Position Invariance from Atomic Clock Comparisons. Phys Rev Lett 2021; 126:011102. [PMID: 33480794 DOI: 10.1103/physrevlett.126.011102] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Revised: 11/23/2020] [Accepted: 12/15/2020] [Indexed: 06/12/2023]
Abstract
We compare two optical clocks based on the ^{2}S_{1/2}(F=0)→^{2}D_{3/2}(F=2) electric quadrupole (E2) and the ^{2}S_{1/2}(F=0)→^{2}F_{7/2}(F=3) electric octupole (E3) transition of ^{171}Yb^{+} and measure the frequency ratio ν_{E3}/ν_{E2}=0.932829404530965376(32), improving upon previous measurements by an order of magnitude. Using two caesium fountain clocks, we find ν_{E3}=642121496772645.10(8) Hz, the most accurate determination of an optical transition frequency to date. Repeated measurements of both quantities over several years are analyzed for potential violations of local position invariance. We improve by factors of about 20 and 2 the limits for fractional temporal variations of the fine structure constant α to 1.0(1.1)×10^{-18}/yr and of the proton-to-electron mass ratio μ to -8(36)×10^{-18}/yr. Using the annual variation of the Sun's gravitational potential at Earth Φ, we improve limits for a potential coupling of both constants to gravity, (c^{2}/α)(dα/dΦ)=14(11)×10^{-9} and (c^{2}/μ)(dμ/dΦ)=7(45)×10^{-8}.
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Affiliation(s)
- R Lange
- Physikalisch-Technische Bundesanstalt, Bundesallee 100, 38116 Braunschweig, Germany
| | - N Huntemann
- Physikalisch-Technische Bundesanstalt, Bundesallee 100, 38116 Braunschweig, Germany
| | - J M Rahm
- Physikalisch-Technische Bundesanstalt, Bundesallee 100, 38116 Braunschweig, Germany
| | - C Sanner
- Physikalisch-Technische Bundesanstalt, Bundesallee 100, 38116 Braunschweig, Germany
| | - H Shao
- Physikalisch-Technische Bundesanstalt, Bundesallee 100, 38116 Braunschweig, Germany
| | - B Lipphardt
- Physikalisch-Technische Bundesanstalt, Bundesallee 100, 38116 Braunschweig, Germany
| | - Chr Tamm
- Physikalisch-Technische Bundesanstalt, Bundesallee 100, 38116 Braunschweig, Germany
| | - S Weyers
- Physikalisch-Technische Bundesanstalt, Bundesallee 100, 38116 Braunschweig, Germany
| | - E Peik
- Physikalisch-Technische Bundesanstalt, Bundesallee 100, 38116 Braunschweig, Germany
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Mou YW, Li ZY, Yang X, Chen SY, Hou SS, Zhang EG, Shao H, Du ZJ. [Research progress of ferroptosis-related mechanism and diseases]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2020; 38:797-800. [PMID: 33142393 DOI: 10.3760/cma.j.cn121094-20190925-00392] [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
Ferroptosis is a new programmed cell death characterized by iron dependent and intracellular oxidative accumulation. Current studies have confirmed that ferroptosis is involved in the occurrence and development of neurotoxicity injury, tumors, cardiovascular diseases and other diseases. This paper reviews the mechanisms of ferroptosis and its role in related diseases based on recent studies.
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Affiliation(s)
- Y W Mou
- Shandong Academy of Occupational Health and Occupational Medicine, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan 250062, China
| | - Z Y Li
- Shandong Academy of Occupational Health and Occupational Medicine, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan 250062, China
| | - X Yang
- Shandong Academy of Occupational Health and Occupational Medicine, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan 250062, China
| | - S Y Chen
- Shandong Academy of Occupational Health and Occupational Medicine, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan 250062, China
| | - S S Hou
- School of Public Health, Changchun University, Changchun 130021, China
| | - E G Zhang
- Shandong Academy of Occupational Health and Occupational Medicine, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan 250062, China
| | - H Shao
- Shandong Academy of Occupational Health and Occupational Medicine, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan 250062, China
| | - Z J Du
- Shandong Academy of Occupational Health and Occupational Medicine, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan 250062, China
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Lange R, Huntemann N, Sanner C, Shao H, Lipphardt B, Tamm C, Peik E. Coherent Suppression of Tensor Frequency Shifts through Magnetic Field Rotation. Phys Rev Lett 2020; 125:143201. [PMID: 33064511 DOI: 10.1103/physrevlett.125.143201] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Accepted: 08/24/2020] [Indexed: 06/11/2023]
Abstract
We introduce a scheme to coherently suppress second-rank tensor frequency shifts in atomic clocks, relying on the continuous rotation of an external magnetic field during the free atomic state evolution in a Ramsey sequence. The method retrieves the unperturbed frequency within a single interrogation cycle and is readily applicable to various atomic clock systems. For the frequency shift due to the electric quadrupole interaction, we experimentally demonstrate suppression by more than two orders of magnitude for the ^{2}S_{1/2}→^{2}D_{3/2} transition of a single trapped ^{171}Yb^{+} ion. The scheme provides particular advantages in the case of the ^{171}Yb^{+} ^{2}S_{1/2}→^{2}F_{7/2} electric octupole (E3) transition. For an improved estimate of the residual quadrupole shift for this transition, we measure the excited state electric quadrupole moments Θ(^{2}D_{3/2})=1.95(1)ea_{0}^{2} and Θ(^{2}F_{7/2})=-0.0297(5)ea_{0}^{2} with e the elementary charge and a_{0} the Bohr radius, improving the measurement uncertainties by one order of magnitude.
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Affiliation(s)
- R Lange
- Physikalisch-Technische Bundesanstalt, Bundesallee 100, 38116 Braunschweig, Germany
| | - N Huntemann
- Physikalisch-Technische Bundesanstalt, Bundesallee 100, 38116 Braunschweig, Germany
| | - C Sanner
- Physikalisch-Technische Bundesanstalt, Bundesallee 100, 38116 Braunschweig, Germany
| | - H Shao
- Physikalisch-Technische Bundesanstalt, Bundesallee 100, 38116 Braunschweig, Germany
| | - B Lipphardt
- Physikalisch-Technische Bundesanstalt, Bundesallee 100, 38116 Braunschweig, Germany
| | - Chr Tamm
- Physikalisch-Technische Bundesanstalt, Bundesallee 100, 38116 Braunschweig, Germany
| | - E Peik
- Physikalisch-Technische Bundesanstalt, Bundesallee 100, 38116 Braunschweig, Germany
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Shao H, Huang Y, Hu HL, Fan WX, Yin XN. Effect of miR-29c on renal fibrosis in diabetic rats via the AMPK/mTOR signaling pathway. Eur Rev Med Pharmacol Sci 2020; 23:6250-6256. [PMID: 31364127 DOI: 10.26355/eurrev_201907_18445] [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] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE To explore the effect of micro-ribonucleic acid (miR)-29c on renal fibrosis in diabetic rats through the adenosine 5'-monophosphate-activated protein kinase (AMPK)/mammalian target of rapamycin (mTOR) signaling pathway, and to investigate its related mechanism by the research on the effect of miR-29c on the expression of fibrosis-related genes. MATERIALS AND METHODS The rat model of diabetic nephropathy (DN) was established, and the levels of fasting blood glucose (FBG), 24 h urine protein (24h-Pro), blood urea nitrogen (BUN), and serum creatinine (sCr) were monitored. After the rats were executed, kidney tissues were dissected, stained with paraffin and embedded in hematoxylin and eosin (H&E). Then, Western blotting was used to detect the levels of miR-29c, phosphorylated-AMPK (p-AMPK), α-smooth muscle actin (α-SMA), tumor necrosis factor-α (TNF-α), and macrophage migration inhibitory factor (MIF). The human renal tubular epithelial HK-2 cell line was treated with high glucose (HG) to simulate DN cell status in vivo. After that, the expressions of miR-29c and the renal fibrosis marker α-SMA were examined via Western blotting. Finally, the level of α-SMA was measured by Western blotting after HG treatment combined with miR-29c silencing. RESULTS The levels of FBG, BUN, sCr, and 24h-Pro in DN model rats were significantly higher than those in rats of control group. The data manifested that the DN model was successfully established. The expression level of miR-29c in DN model rats was markedly increased and that of the downstream protein p-AMPK also exhibited a significantly increasing trend. In addition, the levels of α-SMA, TNF-α, and MIF were elevated. The expression levels of miR-29c and α-SMA were increased markedly after the human renal tubular epithelial HK-2 cell line was treated with HG, but the expression of α-SMA was reduced after HG treatment combined with miR-29c silencing for 24 h. CONCLUSIONS MiR-29c is probably related to the occurrence and development of DN. Besides, miR-29c silencing may inhibit the DN renal fibrosis through AMPK/mTOR signals, so miR-29c may be an effective target for the treatment of DN renal fibrosis.
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Affiliation(s)
- H Shao
- Department of Nephrology, Jining No. 1 People's Hospital, Jining, China.
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Tao C, Zeng W, Zhang Q, Liu G, Wu F, Shen H, Zhang W, Bo H, Shao H. Effects of the prebiotic inulin-type fructans on post-antibiotic reconstitution of the gut microbiome. J Appl Microbiol 2020; 130:634-649. [PMID: 32813896 DOI: 10.1111/jam.14827] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2020] [Revised: 08/14/2020] [Accepted: 08/17/2020] [Indexed: 12/20/2022]
Abstract
AIMS Interventions using prebiotic inulin-type fructans (ITFs) are widely prescribed to modulate the gut microbiota composition and activity to promote health. However, the impacts of ITFs on post-antibiotic reconstitution of the gut microbiome remain incompletely understood. The aim of the present study was to investigate the effects of ITFs supplementation on intestinal inflammation, the composition of the intestinal microbiota and the colonic transcriptome after antibiotic treatment. METHODS AND RESULTS Male BALB/c mice were subjected to an antibiotic cocktail (ABx) treatment for 7 days, and their microbiomes were then reconstituted either spontaneously or with ITFs supplementation (5%) for 14 days. Our data showed that ITFs supplementation delayed the recovery of antibiotic-induced colitis compared with the spontaneous recovery. Neither ITFs supplementation nor spontaneous recovery could restore the microbial community composition at the genus level back to its initial composition. ITFs supplementation increased the relative abundance of some beneficial bacteria and butyrate levels, but resulted in selective blooms of some opportunistic pathogens and elevated the pathways associated with diseases linked to gut microbiota function. Both ITFs supplementation and spontaneous recovery could restore the colonic transcriptome nearly to the initial profile to a certain extent; however, ITFs supplementation delayed the restoration of the immunoglobulin genes compared to spontaneous recovery. CONCLUSION These data showed that post-antibiotic ITFs consumption did not always lead to beneficial effects but might lead to potential adverse effects in the context of dysbiosis. SIGNIFICANCE AND IMPACT OF THE STUDY These findings highlighted that caution is required when supplementing ITFs to restore intestinal homeostasis in the context of dysbiosis resulting from broad-spectrum antibiotics.
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Affiliation(s)
- C Tao
- Guangdong Province Key Laboratory for Biotechnology Drug Candidates, School of Biosciences and Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou, China
| | - W Zeng
- Guangdong Province Key Laboratory for Biotechnology Drug Candidates, School of Biosciences and Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou, China
| | - Q Zhang
- Guangdong Province Key Laboratory for Biotechnology Drug Candidates, School of Biosciences and Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou, China
| | - G Liu
- College of Light Industry and Food Science, Zhongkai University of Agriculture and Engineering, Guangzhou, China
| | - F Wu
- Guangdong Province Key Laboratory for Biotechnology Drug Candidates, School of Biosciences and Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou, China
| | - H Shen
- Guangdong Province Key Laboratory for Biotechnology Drug Candidates, School of Biosciences and Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou, China
| | - W Zhang
- Guangdong Province Key Laboratory for Biotechnology Drug Candidates, School of Biosciences and Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou, China
| | - H Bo
- Guangdong Province Key Laboratory for Biotechnology Drug Candidates, School of Biosciences and Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou, China
| | - H Shao
- Guangdong Province Key Laboratory for Biotechnology Drug Candidates, School of Biosciences and Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou, China
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Niu Y, Miao PP, Wang JC, Meng T, Jia Q, Shen ML, Bin P, Duan HW, Shao H, Dai YF. [Analysis of the relationship between the changes of lung function and serum proinflammatory cytokines in workers occupationally exposed to toluene diisocyanate]. Zhonghua Yu Fang Yi Xue Za Zhi 2020; 54:673-678. [PMID: 32842285 DOI: 10.3760/cma.j.cn112150-20191019-00800] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Objective: To analyze the correlation between the changes of lung function and serum proinflammatory cytokines in workers occupationally exposed to toluene diisocyanate (TDI), and to explore the evaluation index of respiratory toxicity of TDI. Methods: In October 2014, 61 male workers engaged in TDI synthesis process, purification process, packaging process and the above production process in a TDI factory in western China were selected as TDI exposure group; 62 male enterprise managers who were not exposed to TDI and other known allergenic chemicals were selected as control group, which were matched at the age of workers in exposure group. The questionnaire survey obtained information such as gender, length of service, age, occupational history, exposed length of service and so on. The lung function indexes [forced expiratory volume in the first second (FEV1), forced vital capacity (FVC), FEV1/FVC] and serum levels of interleukin (IL)-1 β, IL-6, IL-8, tumor necrosis factor (TNF)-α, macrophage inflammatory factor-1 β, monocyte chemoattractant factor-1 and vascular endothelial growth factor were measured. The urine was collected after the weekend shift, and the concentration of (TDA), the metabolite of TDI, was determined as the index of internal exposure. Spearman rank correlation was used to analyze the correlation between cytokines and lung function indexes, and multivariate linear regression was used to analyze the changes of lung function indexes and cytokines with TDI exposure concentration and time. Results: The median age (P5-P95) of the exposed group and the control group was 36.5 (24.0-51.0) and 38.0 (24.0-50.0) years, respectively. In the exposed group, the median length of service (P5-P95) was 6.94 (0.97-26.33) years, and the median concentration of TDA in urine was 15.56 (2.28-112.16) ng/ml. The three indexes of lung function, FVC, FEV1, FEV1/FVC and the levels of serum IL-8 and TNF-α were significantly lower than those in the control group (P<0.01). With the increase of exposure concentration and exposure time, the level of serum TNF-α, FVC and FEV1 decreased, and showed a good dose-effect and time-effect relationship (all Ptrend values< 0.05). Serum IL-8 and TNF-α were positively correlated with FVC, FEV1 and FEV1/FVC (all P values<0.01). Conclusion: The levels of serum inflammatory factors IL-8 and TNF-α in worker exposed to TDI are related to lung function indexes, which can be used as early evaluation indexes of respiratory toxicity induced by TDI.
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Affiliation(s)
- Y Niu
- Institute of Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention, Beijing 100050, China
| | - P P Miao
- Institute of Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention, Beijing 100050, China
| | - J C Wang
- Institute of Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention, Beijing 100050, China
| | - T Meng
- First Affiliated Hospital of Shanxi Datong University, Medical College of Shanxi Datong University, Datong 037009, China
| | - Q Jia
- Shandong Academy of Occupational Health and Occupational Medicine, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan 250062, China
| | - M L Shen
- Institute of Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention, Beijing 100050, China
| | - P Bin
- Institute of Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention, Beijing 100050, China
| | - H W Duan
- Institute of Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention, Beijing 100050, China
| | - H Shao
- Shandong Academy of Occupational Health and Occupational Medicine, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan 250062, China
| | - Y F Dai
- Institute of Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention, Beijing 100050, China
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Shao H, Zhang P, You C, Li C, Feng Y, Xie Z. Genetic Diversity of the root-knot nematode Meloidogyne enterolobii in Mulberry Based on the Mitochondrial COI Gene. Ecol Evol 2020; 10:5391-5401. [PMID: 32607161 PMCID: PMC7319126 DOI: 10.1002/ece3.6282] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [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: 01/11/2020] [Revised: 03/26/2020] [Accepted: 03/27/2020] [Indexed: 11/06/2022] Open
Abstract
This study explores the genetic diversity and structure of Meloidogyne enterolobii in mulberry in China. The COI mitochondrial gene (mtCOI) in M.enterolobii populations in Guangdong, Guangxi, and Hunan Provinces was PCR-amplified, sequenced, and analyzed for genetic diversity. The total number of variations, haplotypes (Hap), the average number of nucleotide differences (k), haplotype diversity (H), and nucleotide diversity (π) of mtCOI were 25, 11, 4.248, 0.900, and 0.00596, respectively. Insignificant differences in Fst value (0.0169) and a high level of gene flow (7.02) were detected among the 19-mulberry root-knot nematode populations, and high genetic variation within each population and a small genetic distance among populations were observed. Both phylogenetic analyses and network mapping of the 11 haplotypes revealed a dispersed distribution pattern of 19 mulberry root-knot nematode populations and an absence of branches strictly corresponding to the 19 range sampling sites. The neutrality test and mismatch analysis indicated that mulberry root-knot nematode populations experienced a population expansion in the past. The analysis of molecular variance (AMOVA) revealed that the genetic differentiation of M. enterolobii was mainly contributed by the variation within each group. No significant correlation was found between the genetic distance and geographical distance of M. enterolobii populations. The findings of this study provide a profound understanding of the M. enterolobii population and will inform the development of strategies to combat and manage root-knot nematodes in mulberry.
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Affiliation(s)
- Hudie Shao
- College of AgricultureYangtze UniversityJingzhouChina
- The innovative Institute for plant healthZhongkai University of Agriculture and EngineeringGuangzhouChina
| | - Pan Zhang
- The innovative Institute for plant healthZhongkai University of Agriculture and EngineeringGuangzhouChina
| | - Chunping You
- The innovative Institute for plant healthZhongkai University of Agriculture and EngineeringGuangzhouChina
| | - Chuanren Li
- College of AgricultureYangtze UniversityJingzhouChina
| | - Yan Feng
- The innovative Institute for plant healthZhongkai University of Agriculture and EngineeringGuangzhouChina
| | - Zhenwen Xie
- The innovative Institute for plant healthZhongkai University of Agriculture and EngineeringGuangzhouChina
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Abstract
China is one of the largest producers of mulberry in the world. With the development of the sericulture industry, several pests and diseases have occurred in rapid succession, chief among which is the root-knot nematode disease affecting mulberry. According to the China cocoon and silk exchange, cocoon prices have doubled since the beginning of 2009 and rose to 92,700 yuan ($135,770) per tonne in mid-April 2010. According to customs statistics, in the first eight months of 2011, China's silk merchandise exports amounted to 2.39 billion yuan. In this study, sequencing of the rDNA-ITS and D2-D3 region of the 28S rRNA gene was combined with root-knot nematode morphological characteristics to identify the root-knot nematode infecting mulberry in the Guangdong, Guangxi, and Hunan provinces of China. This resulted in the identification of Meloidogyne enterolobii as the causal species of root-knot nematode infections in these regions. Importantly, the morphological data agreed completely with our molecular phenotyping efforts, indicating that rDNA sequencing could provide a more clear-cut and less labor-intensive means of characterizing root-knot nematode infections in the future. The differences between this study and the previous studies were discussed, as well as the damage degree, host species and influence scope of M. enterolobii. China is one of the largest producers of mulberry in the world. With the development of the sericulture industry, several pests and diseases have occurred in rapid succession, chief among which is the root-knot nematode disease affecting mulberry. According to the China cocoon and silk exchange, cocoon prices have doubled since the beginning of 2009 and rose to 92,700 yuan ($135,770) per tonne in mid-April 2010. According to customs statistics, in the first eight months of 2011, China’s silk merchandise exports amounted to 2.39 billion yuan. In this study, sequencing of the rDNA-ITS and D2-D3 region of the 28S rRNA gene was combined with root-knot nematode morphological characteristics to identify the root-knot nematode infecting mulberry in the Guangdong, Guangxi, and Hunan provinces of China. This resulted in the identification of Meloidogyne enterolobii as the causal species of root-knot nematode infections in these regions. Importantly, the morphological data agreed completely with our molecular phenotyping efforts, indicating that rDNA sequencing could provide a more clear-cut and less labor-intensive means of characterizing root-knot nematode infections in the future. The differences between this study and the previous studies were discussed, as well as the damage degree, host species and influence scope of M. enterolobii.
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Affiliation(s)
- Pan Zhang
- College of Agriculture and Biology, Zhongkai University of Agriculture and Engineering, Guangzhou, Guangdong, 510225, China
| | - Hudie Shao
- College of Agriculture and Biology, Zhongkai University of Agriculture and Engineering, Guangzhou, Guangdong, 510225, China
- College of Agriculture, Yangtze University, Jingzhou, Hubei, 434025, China
| | - Chunping You
- College of Agriculture and Biology, Zhongkai University of Agriculture and Engineering, Guangzhou, Guangdong, 510225, China
| | - Yan Feng
- College of Agriculture and Biology, Zhongkai University of Agriculture and Engineering, Guangzhou, Guangdong, 510225, China
| | - Zhenwen Xie
- College of Agriculture and Biology, Zhongkai University of Agriculture and Engineering, Guangzhou, Guangdong, 510225, China
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Men JL, Men JY, Zhang MP, Geng X, Zhang J, Chen XL, Shao H. [An investigation of occupational exposure to welding fume, manganese, and manganese compounds in a large container manufacturing enterprise]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2019; 37:797-800. [PMID: 31726516 DOI: 10.3760/cma.j.issn.1001-9391.2019.10.018] [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: To investigate the current status of the occupational hazards of welding fume, manganese, and manganese compounds in the welding environment of a large container manufacturing enterprise, as well as the status of occupational health examination of workers, and to provide a basis for improving the welding environment of this enterprise. Methods: In August 2016, July 2017, and August 2018, convenience sampling was used to perform an on-site occupational hygiene survey of the welding workshop for three consecutive years, and welding fume, manganese and, manganese compounds (counted as manganese dioxide) were measured for their workplace exposure concentrations and exposure levels in workers. A comprehensive analysis was performed for the results of occupational health examination. Results: Welding fume, manganese, and manganese compounds in the welding environment gradually increased from 2016 to 2018 (χ(2)(trend)=5.14 and 5.54, P<0.05). The maximum over-standard rate of concentration-short term exposure limit was 43.3% (13/30) for welding fume and 40.0% (12/30) for manganese and its compounds, and the maximum over-standard rate of time-weighted average concentration was 26.7% (8/30) for welding fume and 23.3% (7/30) for manganese and its compounds. Abnormalities were observed in the occupational health examination of welding workers in 2016-2018, among which respiratory system abnormalities (cough, expectoration, and wheezing), nervous system abnormalities (dizziness, fatigue, sleep disorders, amnesia, hyperhidrosis, and palpitations), and electrocardiogram abnormalities (bundle conduction block) had an incidence rate of above 10.0%, and the incidence rate of abnormalities on posterior-anterior X-ray high-kV chest radiograph was close to 8.9% (30/336) . Conclusion: There is severe exposure to welding fume, manganese, and manganese compounds among workers in this enterprise, which cause great hazards to the health of workers. It is necessary to strengthen occupational health management, take measures to improve the welding environment, and enhance occupational disease prevention.
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Affiliation(s)
- J L Men
- Shandong Academy of Occupational Health and Occupational Medicine, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan 250062, China
| | - J Y Men
- CRRC Shandong Co., Ltd., Jinan 250022, China
| | - M P Zhang
- Shandong Academy of Occupational Health and Occupational Medicine, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan 250062, China
| | - X Geng
- Shandong Academy of Occupational Health and Occupational Medicine, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan 250062, China
| | - J Zhang
- Shandong Academy of Occupational Health and Occupational Medicine, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan 250062, China
| | - X L Chen
- Shandong Academy of Occupational Health and Occupational Medicine, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan 250062, China
| | - H Shao
- Shandong Academy of Occupational Health and Occupational Medicine, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan 250062, China
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Deng GJ, Huang WH, Li JW, Shao H, Guo LT, Xie SY. Effect of peak power enhancement of ferrite phase shifter from full-height to increased-height rectangular waveguide. Rev Sci Instrum 2019; 90:114705. [PMID: 31779378 DOI: 10.1063/1.5125843] [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] [Received: 08/27/2019] [Accepted: 10/13/2019] [Indexed: 06/10/2023]
Abstract
In order to enhance the high-power performance of the ferrite phase shifter (PS), a method of increasing waveguide height is proposed and experimentally demonstrated. Dual-toroid geometry is utilized as a high-power structure. Two configurations of X-band PSs with full-height (FH) and increased-height (IH) waveguides are designed and fabricated while keeping other parameters consistent. Comparative analysis based on simulation and high-power experiments is conducted. The simulation results agree well with experiments. Compared with the FHPS, the IHPS can enhance the peak-power-capacity from 90 kW to 140 kW while maintaining almost the same insertion loss of 0.5 dB with a slight increase in differential phase shift from 360° to 380°.
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Affiliation(s)
- G J Deng
- Science and Technology of High Power Microwave Laboratory, Northwest Institute of Nuclear Technology, Xi'an, Shaanxi 710024, China
| | - W H Huang
- Science and Technology of High Power Microwave Laboratory, Northwest Institute of Nuclear Technology, Xi'an, Shaanxi 710024, China
| | - J W Li
- Science and Technology of High Power Microwave Laboratory, Northwest Institute of Nuclear Technology, Xi'an, Shaanxi 710024, China
| | - H Shao
- Science and Technology of High Power Microwave Laboratory, Northwest Institute of Nuclear Technology, Xi'an, Shaanxi 710024, China
| | - L T Guo
- Science and Technology of High Power Microwave Laboratory, Northwest Institute of Nuclear Technology, Xi'an, Shaanxi 710024, China
| | - S Y Xie
- Science and Technology of High Power Microwave Laboratory, Northwest Institute of Nuclear Technology, Xi'an, Shaanxi 710024, China
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Gerber N, Shao H, Chadha M, Gold H. The Omission of Endocrine Therapy (ET) in Older Women with Stage I Estrogen-Receptor (ER)-Positive Breast Cancer Is Not Associated with a Higher Risk of Recurrence. Int J Radiat Oncol Biol Phys 2019. [DOI: 10.1016/j.ijrobp.2019.06.665] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Wang L, Zhang LS, Wang C, Zhang F, Shao H. [Analysis of occupational health surveillance for workers on offshore platforms]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2019; 37:236-240. [PMID: 31189254 DOI: 10.3760/cma.j.issn.1001-9391.2019.03.021] [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: To understand the status of occupational health surveillance for workers on offshore platforms. Methods: The research period was from 2014 to 2016. From 2014 to 2016, a cross-sectional survey method was adopted to select 429 people for offshore oil production, drilling and operation platforms and their first-line workers to conduct workplace occupational hygiene. Investigation, occupational hazard factor testing, occupational health check of workers, collation and statistical analysis of surveys and test data, and comparison of occupational health surveillance among workers of different types of offshore platforms. Results: From 2014 to 2016, the results of chemical harmful factors detection of occupational diseases in the offshore platform were in line with the national occupational health exposure limit requirements. The noise of some platform posts exceeded the standard, such as: oil platform oil, oil and oil and gas processing workers, diesel engines for drilling and working platforms. Worker noise exceeds national occupational health limits p[L(ex, 8 h)>85 dB(A)].There was a statistically significant difference in the occupational health of workers on the same platform with the age and length of service (P<0.05). Conclusion: Workers on different platforms at sea may be subject to different levels of occupational health damage, and the occupational hazards brought by noise to platform workers are particularly prominent.
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Affiliation(s)
- L Wang
- School of Medicine and Life Sciences, University of Jinan-Shandong Academy of Medical Sciences, Jinan 250062, China; Shandong Academy of Occupational Health and Occupational Medicine, Jinan 250062, China
| | - L S Zhang
- School of Medicine and Life Sciences, University of Jinan-Shandong Academy of Medical Sciences, Jinan 250062, China; Shandong Academy of Occupational Health and Occupational Medicine, Jinan 250062, China
| | - C Wang
- School of Medicine and Life Sciences, University of Jinan-Shandong Academy of Medical Sciences, Jinan 250062, China; Shandong Academy of Occupational Health and Occupational Medicine, Jinan 250062, China
| | - F Zhang
- Shandong Academy of Occupational Health and Occupational Medicine, Jinan 250062, China
| | - H Shao
- Shandong Academy of Occupational Health and Occupational Medicine, Jinan 250062, China
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Wang JY, Geng X, Jia Q, Li C, Sai LL, Yu GC, Shao H. [Expression changes of miRNA-29b-3p and miRNA-34c-3p in lung tissue of rats exposed to silica and A549 cells]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2019; 37:110-115. [PMID: 30929350 DOI: 10.3760/cma.j.issn.1001-9391.2019.02.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [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: To investigate the role of microRNA-29b-3p (miRNA-29b-3p) and miRNA-34c-3p in the process of pulmonary fibrosis, we detected the expression levels of miRNA-29b-3p and miRNA-34c-3p in the lung tissue of rats exposed to silica and A549 cells. Methods: SPF male Wistar rats were randomly divided into 1, 7, 14, 21, 28 d control group and silica (SiO(2)) dusting group, with 6 rats in each group. One-time non-exposure method was used to infuse 1ml SiO(2) suspension. The rat SiO(2) dusting group was established in the liquid, and the control rats were intratracheally injected with 1 ml of sterile physiological saline in the same manner. The lung tissues of each group were collected at the corresponding time points after dusting. Three of the rats were taken out for pathological observation, and the other three were used to screen differentially expressed miRNAs in lung tissue by miRNA microarray technology. A549 cells were cultured at the in vitro cell level and divided into control group, SiO(2) stimulation group and TGF-β(1) stimulation group, and cells were collected at 12, 24 and 48 h after treatment. The expression levels of miRNA-29b-3p and miRNA-34c-3p in rat lung tissue and A549 cells were verified by real-time PCR (qRT-PCR), target gene prediction of miRNA-29b-3p and miRNA-34c-3p and perform GO enrichment analysis and KEGG pathway analysis. Results: The weight growth rate of the control group was significantly higher than that of the SiO(2) dusting group. Compared with the control group, the lung mass and lung coefficient of the SiO(2) dusting group were significantly increased (P<0.05). The inflammatory response of the lungs in the control group was significantly reduced at 21 and 28 days, and the inflammatory cells infiltrated in the lung tissue of the SiO2 group. The rats in the control group had a small amount of collagen at 21 and 28 days. A large amount of collagen fiber deposition began to appear in the lung tissue of rats exposed to SiO(2) for 21 days. Compared with the control group, the expression levels of miRNA-29b-3p and miRNA-34c-3p in the SiO(2) dusting group were significantly down-regulated, and there was significant difference compared with the control group (P<0.05). The expression levels of miRNA-29b-3p and miRNA-34c-3p in A549 cells treated with SiO(2) and human recombinant TGF-β1 were significantly lower than those in the control group at 24 h and 48 h, and the difference was statistically significant (P<0.05). Conclusion: Down-regulation of miRNA-29b-3p and miR-34c-3p in rat lung tissue A549 cells may be associated with the development of early silicosis and is expected to be an indicator of early silicosis diagnosis and prognosis.
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Affiliation(s)
- J Y Wang
- School of Medicine and Life Sciences, University of Jinan-Shandong Academy of Medical Sciences, Jinan 250062, China; Shandong academy of medical science shand and Occopational Medical, Jinan 250062, China
| | - X Geng
- Shandong academy of medical science shand and Occopational Medical, Jinan 250062, China
| | - Q Jia
- Shandong academy of medical science shand and Occopational Medical, Jinan 250062, China
| | - C Li
- Shandong academy of medical science shand and Occopational Medical, Jinan 250062, China
| | - L L Sai
- Shandong academy of medical science shand and Occopational Medical, Jinan 250062, China
| | - G C Yu
- Shandong academy of medical science shand and Occopational Medical, Jinan 250062, China
| | - H Shao
- Shandong academy of medical science shand and Occopational Medical, Jinan 250062, China
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Wang JY, Yu GC, Jia Q, Li C, Shao LL, Sai LL, Shao H. [Preliminary analysis of differential expression of miRNA-423-5p and miRNA-26a-5p in lung tissue of early silicotic rats]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2019; 37:7-12. [PMID: 30884581 DOI: 10.3760/cma.j.issn.1001-9391.2019.01.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [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: To screen the changes of microRNA (miRNA) expression profiles in lung tissues of early silicosis rats, and provide a basis for functional analysis of differential microRNA. Methods: SPF Wistar male rats were randomly divided into a negative control group and SiO(2)-exposed groups, with 30 rats in each group. The model of silicosis in rats was established by intratracheal instillation of 1 ml SiO(2) suspension, and the control rats were treated with 1mL in the same way to sterilize normal saline. The lung tissues of two group were collected at the 1, 7, 14, 21, 28 d after SiO(2)-exposed. Three of the rat lung tissues were used for pathological observation, and the other three were used to screen differentially expressed miRNAs in lung tissue by miRNA microarray technology. miRNA chip screening and RT-qPCR were used to verify the expression levels of miRNA-423-5p and miRNA-26a-5p in the two groups. miRNA-423-5p and miRNA-26a-5p are predicted by target genes and analyzed by GO (gene ontology) enrichment analysis and KEGG (kyoto encyclopedia of genes and genomes) pathway analysis. Results: In the control group, the inflammatory response of lung tissue 21 and 28 days was significantly reduced compared with 1, 7 and 14 days, and the inflammatory cells infiltrated in the lung tissue of the SiO(2)-exposed rats. The rats in the control group had a small amount of collagen at 21 and 28 days, but a large amount of collagen fiber deposition began to appear in the lung tissue of rats exposed to SiO(2) after 21 days. Compared with the control group, the expression levels of micro RNA-423-5p was significantly up-regulated and the expression of microRNA-26a-5p was significantly down-regulated in the SiO(2)-exposed rats lung tissues dust at different time points (P<0.05) . Conclusion: The up-regulation of miRNA-423-5p and the down-regulation of miRNA-26a-5p in lung tissues of early silicotic rats may be related to the occurrence and development of early silicosis.
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Affiliation(s)
- J Y Wang
- School of Medicine and Life Sciences, University of Jinan-Shandong Academy of Medical Sciences, Jinan 250062, China; Shandong Academy of Medical Science, Shandong Academy of Occupational Medicine, Jinan 250062, China
| | - G C Yu
- Shandong Academy of Medical Science, Shandong Academy of Occupational Medicine, Jinan 250062, China
| | - Q Jia
- School of Medicine and Life Sciences, University of Jinan-Shandong Academy of Medical Sciences, Jinan 250062, China;Shandong Academy of Medical Science, Shandong Academy of Occupational Medicine, Jinan 250062, China
| | - C Li
- Shandong Academy of Medical Science, Shandong Academy of Occupational Medicine, Jinan 250062, China
| | - L L Shao
- School of Medicine and Life Sciences, University of Jinan-Shandong Academy of Medical Sciences, Jinan 250062, China; Shandong Academy of Medical Science, Shandong Academy of Occupational Medicine, Jinan 250062, China
| | - L L Sai
- Shandong Academy of Medical Science, Shandong Academy of Occupational Medicine, Jinan 250062, China
| | - H Shao
- Shandong Academy of Medical Science, Shandong Academy of Occupational Medicine, Jinan 250062, China
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Chen SY, Han R, Zhang EG, Yang Y, Jia Q, Sai LL, Bo CX, Zhang Y, Du ZJ, Shao H. [Repair effect of adipose-derived mesenchymal stem cells on lung injury in rats exposed to silica]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2019; 37:20-25. [PMID: 30884583 DOI: 10.3760/cma.j.issn.1001-9391.2019.01.004] [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: To observe the repairing effect of adipose mesenchymal stem cells (ADSCs) on lung injury induced by silica in rats. Methods: Primary ADSCs-GFP was obtained from rats. ADSCs-GFP was injected into tail vein of silicosis model rats. The expression of green fluorescence in lungs was observed regularly to determine the homing ability of ADSCs. Primary ADSCs of rats were obtained and randomly divided into control group, exposure group, vehicle group and ADSCs group. Silicosis rat model was established by non-exposed tracheal drip method. 24 hours after silica exposure, rats in ADSCs group were injected with ADSCs of 1×10(6)/kg body weight through tail vein, and the pathological changes of lung tissue were observed and evaluated 28 days after intervention. To explore the early intervention mechanism of ADSCs on pulmonary fibrosis in silicosis model rats, apoptosis-related proteins were detected by immunohistochemistry. Results: 28 days after exposure to silica, rats in the exposure group showed obvious pulmonary fibrosis. Compared with exposure group and vehicle group, ADSCs group showed less pulmonary inflammation, less silica nodules and less collagen deposition area. Immunohistochemical results showed that the expression of Caspase-3 and cytochrome C protein decreased and Bcl-2 protein increased after ADSCs transplantation. Conclusion: ADSCs infusion has an obvious intervention effect on postponing early silicosis fibrosis in rats exposed to silica, and its mechanism is related to the regulation of apoptotic process.
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Affiliation(s)
- S Y Chen
- Shandong Academy of Occupational Health and Occupational Medicine, Shandong Academy of Medical Sciences, Jinan 250062, China
| | - R Han
- Shandong Academy of Occupational Health and Occupational Medicine, Shandong Academy of Medical Sciences, Jinan 250062, China
| | - E G Zhang
- Shandong Academy of Occupational Health and Occupational Medicine, Shandong Academy of Medical Sciences, Jinan 250062, China; School of Medicine and Life Sciences, Shandong Academy of Medical Sciences, Jinan University, Jinan 250062, China
| | - Y Yang
- Shandong Academy of Occupational Health and Occupational Medicine, Shandong Academy of Medical Sciences, Jinan 250062, China; School of Medicine and Life Sciences, Shandong Academy of Medical Sciences, Jinan University, Jinan 250062, China
| | - Q Jia
- Shandong Academy of Occupational Health and Occupational Medicine, Shandong Academy of Medical Sciences, Jinan 250062, China
| | - L L Sai
- Shandong Academy of Occupational Health and Occupational Medicine, Shandong Academy of Medical Sciences, Jinan 250062, China
| | - C X Bo
- Shandong Academy of Occupational Health and Occupational Medicine, Shandong Academy of Medical Sciences, Jinan 250062, China
| | - Y Zhang
- Shandong Academy of Occupational Health and Occupational Medicine, Shandong Academy of Medical Sciences, Jinan 250062, China
| | - Z J Du
- Shandong Academy of Occupational Health and Occupational Medicine, Shandong Academy of Medical Sciences, Jinan 250062, China; School of Medicine and Life Sciences, Shandong Academy of Medical Sciences, Jinan University, Jinan 250062, China
| | - H Shao
- Shandong Academy of Occupational Health and Occupational Medicine, Shandong Academy of Medical Sciences, Jinan 250062, China; School of Medicine and Life Sciences, Shandong Academy of Medical Sciences, Jinan University, Jinan 250062, China
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Vasan N, Razavi P, Johnson J, Shao H, Reznik E, Smith M, Sebra R, Cantley L, Scaltriti M, Baselga J. Double PIK3CA mutations in cis enhance PI3Kα oncogene activation and sensitivity to PI3Kα inhibitors in breast cancer. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz095] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Sun XC, Zhang F, Zhang W, Yang X, Shao H, Wang ZX. [Research of relationship between occupational exposure to coal tar pitch workers and cytogenetic damage]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2019; 35:282-285. [PMID: 28614929 DOI: 10.3760/cma.j.issn.1001-9391.2017.04.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the effect of coal tar pitch occupational exposure on the cytogenetic damage. Methods: In July 2015, 691 workers exposed to coal tar pitch were selected as contact group. The administrative and the support crew 201 cases were selected as control group. Detect the tail DNA% and tail moment in peripheral blood lymphocyte as DNA damage degree by single cell gel electrophoresis (SCGE) . Detect the concentration of the metabolic product in urine by HPLC/MC as exposure levels. Results: The contact group were significantly higher than the control group in tail DNA% (contact group14.44%, control group 11.17%) and olive tail moment (contact group 2.85 μm, control group 1.95 μm) . The smoking one (contact group18.51%, control group13.43%) were significantly higher than the group not smoking (contact group12.69%, control group 11.71%) in tail DNA%. The coal tar pitch content in the air of workplace have correlation with worker, stail DNA% (r(s)=0.10) and olive tail moment (r(s)=0.11) . Conclusion: Occupational exposure to coal tar pitch and smoking can cause cytogenetic damage to workers.
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Affiliation(s)
- X C Sun
- School of Medicine and Life Sciences, University of Jinan-Shandong Academy of Medical Sciences, Shandong Academy of Occupational Health and Occupational Medicine, Jinan 250062, China
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Guo XY, Shao H, Zhao YY. [A case of systemic lupus erythematosus in pregnancy complicated by pulmonary hypertension]. Beijing Da Xue Xue Bao Yi Xue Ban 2018; 50:928-931. [PMID: 30337761] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
To investigate the pathophysiology, screening, diagnosis and treatment of the systemic lupus erythematosus (SLE) in pregnancy complicated with pulmonary hypertension. Retrospective analysis was made of one case of SLE in pregnancy complicated with pulmonary hypertension in Peking University Third Hospital. Literature was reviewed to investigate the pathophysiology, screening, diagnosis and treatment of the SLE in pregnancy complicated with pulmonary hypertension. SLE is an autoimmune mediated diffuse connective tissue disease characterized by immunological inflammation. The incidence of SLE combined with pulmonary hypertension was low, but the risk was high with pregnancy, with a high perinatal mortality rate. Pulmonary hypertension is the leading cause of the death in patients with pregnancy complicated with SLE. This patient was diagnosed with SLE six years before and was hospitalized for 29 weeks of menopause, with fatigue five months and chest congestion one month. Ultrasonic cardiogram showed severe pulmonary hypertension, with pulmonary arterial systolic pressure being 96 mmHg. After admission, multidisciplinary consultation was organized to draw up a diagnosis and treatment plan. The patient received the treatment of rest,oxygen,blood gas and pulmonary artery pressure monitoring. Considering perioperative pulmonary hypertension crisis likely to occur, pulmonary artery catheter was placed preoperatively. In general anesthesia, the cesarean was performedfter operation,the patient was transferred to the intensive care unit, with the treatment of expanding blood vessels, reducing pulmonary artery pressure,administering anticoagulation and preventing infection. Ten days after operation, the patient was discharged from hospital with smooth condition. Strengthening the management of SLE patients in pregnancy, early detection, and cooperation of multidisciplinary teams can help improve maternal and fetal outcomes. Termination of pregnancy should be offered to the patients with severe pulmonary hypertension. Right cardiac catheterization is the gold standard for diagnosing pulmonary hypertension. Some patients are diagnosed in later stage of pregnancy, regular antenatal examination, interdisciplinary co-operation, assessment of cardiac function, monitoring the condition of the pregnant woman and fetus and timely termination of pregnancy are needed. Epidural anesthesia is the appropriate choice for cesarean delivery.
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Affiliation(s)
- X Y Guo
- Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing 100191, China
| | - H Shao
- Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing 100191, China
| | - Y Y Zhao
- Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing 100191, China
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Pishvaian M, Lee M, Ryoo BY, Stein S, Lee KH, Verret W, Spahn J, Shao H, Liu B, Iizuka K, Hsu CH. Updated safety and clinical activity results from a phase Ib study of atezolizumab + bevacizumab in hepatocellular carcinoma (HCC). Ann Oncol 2018. [DOI: 10.1093/annonc/mdy424.028] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
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Shao H, Qi Y, Liang S, Qin S, Yu J. Polypropylene composite hollow fiber ultrafiltration membranes with an acrylic hydrogel surface by
in situ
ultrasonic wave‐assisted polymerization for dye removal. J Appl Polym Sci 2018. [DOI: 10.1002/app.47099] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- H. Shao
- College of Materials Science and MetallurgyGuizhou University Guiyang 550025 People's Republic of China
- National Engineering Research Center for Compounding and Modification of Polymer Materials Guiyang 550014 People's Republic of China
| | - Y. Qi
- College of Materials Science and MetallurgyGuizhou University Guiyang 550025 People's Republic of China
| | - S. Liang
- Vontron Membrane Technology Co., Ltd. Guiyang 550018 People's Republic of China
| | - S. Qin
- College of Materials Science and MetallurgyGuizhou University Guiyang 550025 People's Republic of China
- National Engineering Research Center for Compounding and Modification of Polymer Materials Guiyang 550014 People's Republic of China
| | - J. Yu
- College of Materials Science and MetallurgyGuizhou University Guiyang 550025 People's Republic of China
- National Engineering Research Center for Compounding and Modification of Polymer Materials Guiyang 550014 People's Republic of China
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Dong L, Chen X, Shao H, Bai L, Li X, Zhang X. Mesenchymal Stem Cells Inhibited Dendritic Cells Via the Regulation of STAT1 and STAT6 Phosphorylation in Experimental Autoimmune Uveitis. Curr Mol Med 2018; 17:478-487. [PMID: 29424313 DOI: 10.2174/1566524018666180207155614] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2017] [Revised: 12/15/2017] [Accepted: 02/02/2018] [Indexed: 11/22/2022]
Affiliation(s)
- L. Dong
- Tianjin Medical University Eye Hospital, Eye Institute & School of Optometry and Ophthalmology, Tianjin 300384, China
| | - X. Chen
- Tianjin Medical University Eye Hospital, Eye Institute & School of Optometry and Ophthalmology, Tianjin 300384, China
| | - H. Shao
- Department of Ophthalmology and Visual Sciences, Kentucky Lions Eye Center, University of Louisville, Louisville, KY 40202-1594, United States
| | - L. Bai
- Tianjin Medical University Eye Hospital, Eye Institute & School of Optometry and Ophthalmology, Tianjin 300384, China
| | - X. Li
- Tianjin Medical University Eye Hospital, Eye Institute & School of Optometry and Ophthalmology, Tianjin 300384, China
| | - X. Zhang
- Tianjin Medical University Eye Hospital, Eye Institute & School of Optometry and Ophthalmology, Tianjin 300384, China
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Zheng N, Shao H, Wu D, Shen D, Lin X. Protective influence of rosiglitazone against testicular ischaemia-reperfusion injury in rats. Andrologia 2018; 50:e12947. [PMID: 29315760 DOI: 10.1111/and.12947] [Citation(s) in RCA: 5] [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] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/01/2017] [Indexed: 12/01/2022] Open
Abstract
Testicular torsion is a urology urgent disease which causes testicular injury and potential sterility. In this study, we explored the protective influence of rosiglitazone on testicular ischaemia-reperfusion damage. There were 28 male Sprague Dawley rats in total, which were assigned randomly to four groups. Group A was blank control one; group B was testicular injury one; group C was rosiglitazone one; group D was rosiglitazone antagonist one. The testicles were counter-rotated after 2 hr and then underwent orchiectomy 24 hr later. We found that testicular tissue structure of rats was seriously damaged in groups B and D. However, group C had better testicular architecture. Similar findings were also shown for lipid peroxidation by evaluating the MDA activity (p < .05). Unlike group B or group D, the levels of inflammation by evaluating the MPO activity, the levels of TNF-a, IL-1 and IL-6 and the expressions of ICAM-1 were prominently lower in group C (p < .05) as well. So our researches demonstrated that rosiglitazone significantly decreased the amount of responsive oxygen radical and regulated inflammatory responses. Rosiglitazone had a protective influence against testicular ischaemia-reperfusion injury in rats and possibly depended on its anti-inflammatory and antioxidant traits.
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Affiliation(s)
- N Zheng
- Department of Pediatric Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - H Shao
- Department of Pediatric Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - D Wu
- Department of Pediatric Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - D Shen
- Department of Pediatric Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - X Lin
- Department of Pediatric Surgery, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
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Shao H, Sun M, Zhang F, Liu A, He Y, Fu J, Yang X, Wang H, Gou Z. Custom Repair of Mandibular Bone Defects with 3D Printed Bioceramic Scaffolds. J Dent Res 2017; 97:68-76. [PMID: 29020507 DOI: 10.1177/0022034517734846] [Citation(s) in RCA: 62] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Implanting artificial biomaterial implants into alveolar bone defects with individual shape and appropriate mechanical strength is still a challenge. In this study, bioceramic scaffolds, which can precisely match the mandibular defects in macro and micro, were manufactured by the 3-dimensional (3D) printing technique according to the computed tomography (CT) image. To evaluate the stimulatory effect of the material substrate on bone tissue regeneration in situ in a rabbit mandibular alveolar bone defect model, implants made with the newly developed, mechanically strong ~10% Mg-substituted wollastonite (Ca90%Mg10%SiO3; CSi-Mg10) were fabricated, implanted into the bone defects, and compared with implants made with the typical Ca-phosphate and Ca-silicate porous bioceramics, such as β-tricalcium phosphate (TCP), wollastonite (CaSiO3; CSi), and bredigite (Bred). The initial physicochemical tests indicated that although the CSi-Mg10 scaffolds had the largest pore dimension, they had the lowest porosity mainly due to the significant linear shrinkage of the scaffolds during sintering. Compared with the sparingly dissolvable TCP scaffolds (~2% weight loss) and superfast dissolvable (in Tris buffer within 6 wk) pure CSi and Bred scaffolds (~12% and ~14% weight loss, respectively), the CSi-Mg10 exhibited a mild in vitro biodissolution and moderate weight loss of ~7%. In addition, the CSi-Mg10 scaffolds showed a considerable initial flexural strength (31 MPa) and maintained very high flexural resistance during soaking in Tris buffer. The in vivo results revealed that the CSi-Mg10 scaffolds have markedly higher osteogenic capability than those on the TCP, CSi, and Bred scaffolds after 16 wk. These results suggest a promising potential application of customized CSi-Mg10 3D robocast scaffolds in the clinic, especially for repair of alveolar bone defects.
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Affiliation(s)
- H Shao
- 1 State Key Laboratory of Fluid Power and Mechatronic Systems, School of Mechanical Engineering, Zhejiang University, Hangzhou, China.,2 Key Laboratory of 3D Printing Process and Equipment of Zhejiang Province, School of Mechanical Engineering, Zhejiang University, Hangzhou, China
| | - M Sun
- 3 Department of Oral and Maxillofacial Surgery, Stomatology Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - F Zhang
- 4 Children's Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - A Liu
- 5 Department of Orthopaedic Surgery, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Y He
- 1 State Key Laboratory of Fluid Power and Mechatronic Systems, School of Mechanical Engineering, Zhejiang University, Hangzhou, China.,2 Key Laboratory of 3D Printing Process and Equipment of Zhejiang Province, School of Mechanical Engineering, Zhejiang University, Hangzhou, China
| | - J Fu
- 1 State Key Laboratory of Fluid Power and Mechatronic Systems, School of Mechanical Engineering, Zhejiang University, Hangzhou, China.,2 Key Laboratory of 3D Printing Process and Equipment of Zhejiang Province, School of Mechanical Engineering, Zhejiang University, Hangzhou, China
| | - X Yang
- 6 Bio-nanomaterials and Regenerative Medicine Research Division, Zhejiang-California International Nanosystem Institute, Zhejiang University, Hangzhou, China
| | - H Wang
- 3 Department of Oral and Maxillofacial Surgery, Stomatology Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Z Gou
- 6 Bio-nanomaterials and Regenerative Medicine Research Division, Zhejiang-California International Nanosystem Institute, Zhejiang University, Hangzhou, China
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Venkiteswaran J, Schiff S, Paterson M, Flinn N, Shao H, Elgood R. Changing nitrogen deposition with low δ15N−NH4 + and δ15N−NO3 − values at the Experimental Lakes Area, northwestern Ontario, Canada. Facets (Ott) 2017. [DOI: 10.1139/facets-2016-0060] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Ammonium deposition at the International Institute for Sustainable Development Experimental Lakes Area (IISD–ELA), in northwestern Ontario, Canada, has doubled in the last 45 years and thus is no longer among the low nitrogen (N) deposition sites in North America. This may be related to the concurrent intensification of Manitoba agriculture to the west and upwind of the ELA. Large increases in ammonium deposition at the ELA were important in driving the observed trend and increased the NH4 + to NO3 − ratio of input to aquatic and terrestrial systems. Stable isotope analyses of two years of bulk (wet and dry) atmospheric deposition revealed very large ranges in δ15N−NH4 + (22‰ range), δ15N−NO3 − (18‰), and δ18O–NO3 − (19‰). Few other δ15N−NH4 +, δ15N−NO3 −, and δ18O–NO3 − values have been published for Canadian precipitation. Increases in δ15N of NH4 + and NO3 − in July occurred with increases in total N deposition. The wide range and seasonal trends of δ15N and δ18O values in ELA precipitation mean that studies characterizing N inputs to watersheds and lakes require an ongoing and comprehensive annual sampling regime. Global trends of declining δ15N of N deposition evident in lake sediment records may be a result of increases in NH4 + deposition with lower δ15N−NH4 + values. Similarly, the relationship in Lake Superior between increasing NO3 − and lower δ15N−NO3 − values may be explained by increased atmospheric deposition of N with low δ15N values.
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Affiliation(s)
- J.J. Venkiteswaran
- Department of Geography and Environmental Studies, Wilfrid Laurier University, 75 University Avenue West, Waterloo, ON N2L 3C5, Canada
| | - S.L. Schiff
- Department of Earth and Environmental Sciences, University of Waterloo, 200 University Avenue West, Waterloo, ON N2L 6P4, Canada
| | - M.J. Paterson
- IISD–Experimental Lakes Area, 111 Lombard Avenue, Suite 325, Winnipeg, MB R3B 0T4, Canada
| | - N.A.P. Flinn
- Department of Earth and Environmental Sciences, University of Waterloo, 200 University Avenue West, Waterloo, ON N2L 6P4, Canada
| | - H. Shao
- Department of Earth and Environmental Sciences, University of Waterloo, 200 University Avenue West, Waterloo, ON N2L 6P4, Canada
| | - R.J. Elgood
- Department of Earth and Environmental Sciences, University of Waterloo, 200 University Avenue West, Waterloo, ON N2L 6P4, Canada
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Wang XC, Zhang F, Jia N, Zhang W, Zhang XY, Li J, Shao H. [Analysis of inner or extra-exposure for worker in carbon and coal tar process industries]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2017; 35:280-282. [PMID: 28614928 DOI: 10.3760/cma.j.issn.1001-9391.2017.04.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Objective: To evaluate the inner or extra-exposure of workers in carbon and coal tar process industries. Methods: In May 2015, 271 exposure and 75 non-exposure workers in two of carbon and coal tar process industries in Shandong province were selected. Coal tar pitch (CTP) was detected according to the methods of GB17054-1997. The 1-OH-Nap、2-OH-Nap、1-OH-Pyr in urine were detected by high performance liquid Chromatography (HPLC) . Results: The concentration of 1-OH-Nap、2-OH-Nap、1-OH-Pyr in urine of exposure group were significant higher than that of control group (P<0.05) , respectively. The urine concentration of 1-OH-Nap、2-OH-Nap、1-OH-Py in contact group tar and asphalt were 12.20, 12.55, 7.08 and 10.62, 8.73, 3.07 μg/gCr, and the concentration of them were 7.25, 8.54, 3.00 μg/gCr in container handle workers. Significant positive correlations were found between high or median CTP exposure and the urine concentration of 1-OH-Nap、2-OH-Nap、1-OH-Pyr in exposure groups (P<0.05) . Conclusions: The inner or extra exposure level is relative and different for different type of work in these carbon and coal tar process industries.
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Affiliation(s)
- X C Wang
- Beijing Occupational Hospital of Chemical Technology, Beijing 100093, China
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Lok JB, Shao H, Massey HC, Li X. Transgenesis in Strongyloides and related parasitic nematodes: historical perspectives, current functional genomic applications and progress towards gene disruption and editing. Parasitology 2017; 144:327-342. [PMID: 27000743 PMCID: PMC5364836 DOI: 10.1017/s0031182016000391] [Citation(s) in RCA: 58] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2015] [Revised: 02/10/2016] [Accepted: 02/10/2016] [Indexed: 12/20/2022]
Abstract
Transgenesis for Strongyloides and Parastrongyloides was accomplished in 2006 and is based on techniques derived for Caenorhabditis elegans over two decades earlier. Adaptation of these techniques has been possible because Strongyloides and related parasite genera carry out at least one generation of free-living development, with adult males and females residing in soil contaminated by feces from an infected host. Transgenesis in this group of parasites is accomplished by microinjecting DNA constructs into the syncytia of the distal gonads of free-living females. In Strongyloides stercoralis, plasmid-encoded transgenes are expressed in promoter-regulated fashion in the F1 generation following gene transfer but are silenced subsequently. Stable inheritance and expression of transgenes in S. stercoralis requires their integration into the genome, and stable lines have been derived from integrants created using the piggyBac transposon system. More direct investigations of gene function involving expression of mutant transgene constructs designed to alter intracellular trafficking and developmental regulation have shed light on the function of the insulin-regulated transcription factor Ss-DAF-16. Transgenesis in Strongyloides and Parastrongyloides opens the possibility of powerful new methods for genome editing and transcriptional manipulation in this group of parasites. Proof of principle for one of these, CRISPR/Cas9, is presented in this review.
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Affiliation(s)
- J B Lok
- Department of Pathobiology,School of Veterinary Medicine,University of Pennsylvania,3800 Spruce Street,Philadelphia,PA 19104,USA
| | - H Shao
- Department of Pathobiology,School of Veterinary Medicine,University of Pennsylvania,3800 Spruce Street,Philadelphia,PA 19104,USA
| | - H C Massey
- Department of Pathobiology,School of Veterinary Medicine,University of Pennsylvania,3800 Spruce Street,Philadelphia,PA 19104,USA
| | - X Li
- Department of Pathobiology,School of Veterinary Medicine,University of Pennsylvania,3800 Spruce Street,Philadelphia,PA 19104,USA
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Kee JW, Shao H, Kee CW, Lu Y, Soo HS, Tan CH. Mechanistic insights for the photoredox organocatalytic fluorination of aliphatic carbons by anthraquinone using time-resolved and DFT studies. Catal Sci Technol 2017. [DOI: 10.1039/c6cy02484j] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Nanosecond TAS and DFT calculations reveal mechanistic insights for photoredox fluorination of aliphatic C–H bonds and evidence of an anthraquinone–Selectfluor® exciplex.
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Affiliation(s)
- J. W. Kee
- Division of Chemistry and Biological Chemistry
- School of Physical and Mathematical Sciences
- 21 Nanyang Link
- Nanyang Technological University
- 637371 Singapore
| | - H. Shao
- Division of Chemistry and Biological Chemistry
- School of Physical and Mathematical Sciences
- 21 Nanyang Link
- Nanyang Technological University
- 637371 Singapore
| | - C. W. Kee
- Division of Chemistry and Biological Chemistry
- School of Physical and Mathematical Sciences
- 21 Nanyang Link
- Nanyang Technological University
- 637371 Singapore
| | - Y. Lu
- Division of Chemistry and Biological Chemistry
- School of Physical and Mathematical Sciences
- 21 Nanyang Link
- Nanyang Technological University
- 637371 Singapore
| | - H. S. Soo
- Division of Chemistry and Biological Chemistry
- School of Physical and Mathematical Sciences
- 21 Nanyang Link
- Nanyang Technological University
- 637371 Singapore
| | - C.-H. Tan
- Division of Chemistry and Biological Chemistry
- School of Physical and Mathematical Sciences
- 21 Nanyang Link
- Nanyang Technological University
- 637371 Singapore
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Sun XC, Zhang F, Zhang W, Shao H, Wang ZX. [Effects of genetic polymorphisms of GSTT1 and GSTM1 on metabolism of Polycyclic aromatic hydrocarbon in coal tar pitch workers]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2016; 34:810-813. [PMID: 28043265 DOI: 10.3760/cma.j.issn.1001-9391.2016.11.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the influence of genetic polymorphisms of GSTT1 and GSTM1 on metabolism of polycyclic aromatic hydrocarbon (PAHs) in coal tar pitch workers and to explore the effective bio-marker of occupational exposure to coal tar pitch. Methods: 374 cases of workers exposed to coal tar pitch work at the enterprise which use and product coal tar pitch in Shan Dong province named as exposure group.The ad-ministrative and the support staff 135 cases were selected as control group.The concentration of the metabolic product in urine by HPLC/MC.The genetic polymorphisms of GSTT1 and GSTM1 were detected by multiple PCR method. Results: The content of metabolic product in smoke group were significantly higher than workers do not smoke (P<0.05) . The content of metabolic product in exposure group were significantly higher than control group (P<0.05) . The content of metabolic product in workers carry positive GSTT1 and GSTM1 were significantly high-er than workers carry negative one (P<0.05) . The content of metabolic product in different types of labor were significantly different (P<0.05) . The content of metabolic product were significantly higher in urine after work than before work (P<0.05) . The content of metabolic product and workers carry positive GSTT1 and GSTM1 had a positive correlation (P<0.05) . Conclusion: Carrying positive GSTT1 and GSTM1 promote polycyclic aromatic hydrocarbons in the body's metabolism.
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Affiliation(s)
- X C Sun
- School of Medicine and Life Sciences, University of Jinan-Shandong Academy of Medical Sciences, Shandong Institute of Prevention and Control of Occupational Disease, Jinan250062, China
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Sun XC, Zhang F, Zhang W, Lu CD, Zhang ZH, Feng B, Wei HY, Meng X, Chen XL, Shao H, Wang ZX. [The effect of occupational exposure to coal tar pitch workers' health]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2016; 34:827-829. [PMID: 28043270 DOI: 10.3760/cma.j.issn.1001-9391.2016.11.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the effect of occupational exposure to coal tar pitch on workers' health and metabolism. Methods: 805 workers exposed to coal tar pitch were selected as exposure group from the produce and em-ploy factory. Other people handle administrative and logistical affairs who not exposed to coal tar pitch were selected as control group. Fix-point sample of air were collected to detect the concentration of coal tar pitch. Do physical examination and questionnaire to collect workers' basic and healthy information. To detect the metabolic product of urine samples in laboratory. Results: Anomaly detection rate of the skin in exposure group is 10.61. The lung function indices (FEV1.0%) in exposure group were significantly lower than control group (P<0.05) . The monocyte count and monocyte rate in expo-sure group were significantly higher than control group (P<0.05) . The metabolic product content of PAHS in urine sam-ples is significantly higher in exposed group than control group (P<0.05) . Conclusion: The metabolic product content of polycyclic aromatic hydrocarbon is higher in exposed workers. Coal tar pitch damage workers' skin and lung function. It can cause pruritus chromatodermatosis and so on.
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Affiliation(s)
- X C Sun
- School of Medicine and Life Sciences, University of Jinan-Shandong Academy of Medical Sciences, Shandong Institute of Prevention and Control of Occupational Disease, Jinan250062, China
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Shao H, Li HL, Hou L, Ha HY, Zhou Y, Ma RX. [The analysis of the allergic rhinitis and chronic rhinosinusitis with nasal polyps]. Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2016; 30:1352-1358. [PMID: 29798455 DOI: 10.13201/j.issn.1001-1781.2016.17.003] [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] [Received: 06/01/2016] [Indexed: 06/08/2023]
Abstract
Objective:To study the influence of allergen,sIgE,total IgE in allergic rhinitis and chronic rhniosinusitis with nasal polyps.Method:Fifty patients with allergic rhinitis and fifty patients with both allergic rhinitis and nasal polyp were involved in this study.Average dense of sIgE and total IgE in serum were dectected. Result:The kinds of allergens between the two groups were siginificantly diffierent;there was no siginificantly diffierence on sIgE average dense(P>0.05);total IgE dense was higher in allergic rhinitis and chronic rhniosinusitis with nasal polyps patients(P>0.05).Conclusion:AR with nasal polyps in patients was high proportion of food allergies and allergic reactions strength was high than the AR.
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Affiliation(s)
- H Shao
- Department of Otolaryngology,the General Hospital of Ningxia Medical University,Yinchuan,750004,China
| | - H L Li
- Department of Radiotherapy,Carnicoma Hospital,the General Hospital of Ningxia Medical University
| | - L Hou
- Department of Otolaryngology,the General Hospital of Ningxia Medical University,Yinchuan,750004,China
| | - H Y Ha
- Department of Otolaryngology,the General Hospital of Ningxia Medical University,Yinchuan,750004,China
| | - Y Zhou
- Department of Otolaryngology,the General Hospital of Ningxia Medical University,Yinchuan,750004,China
| | - R X Ma
- Department of Otolaryngology,the General Hospital of Ningxia Medical University,Yinchuan,750004,China
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Shao H, Chen HZ, Zhu JS, Ruan B, Zhang ZQ, Lin X, Gan MF. Computed tomography findings of hepatic veno-occlusive disease caused by Sedum aizoon with histopathological correlation. ACTA ACUST UNITED AC 2016; 48:1145-50. [PMID: 26517336 PMCID: PMC4661032 DOI: 10.1590/1414-431x20154563] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2015] [Accepted: 07/23/2015] [Indexed: 01/09/2023]
Abstract
This study investigated the value of computed tomography (CT) in the diagnosis and
treatment of hepatic veno-occlusive disease (HVOD) caused by Sedum
aizoon (SA). The clinical manifestations, treatment results, imaging
findings, and histological findings of the liver were analyzed in 39 patients with
HVOD caused by SA. Hepatomegaly, liver dysfunction, abdominal effusion, and
geographic density changes on liver CT scans were found in all 39 patients. The
pathological findings of histological liver examination included swelling and
point-like necrosis of liver cells, significant expansion and congestion of the
sinuses, endothelial swelling, and wall thickening with incomplete lumen occlusion of
small liver vessels. CT geographic density changes were confirmed by histological
examination of the liver in 18 patients. Sixteen patients with small amounts of
ascites that started within 4 weeks of treatment recovered completely or
significantly improved after symptomatic and supportive treatment. However, only
43.75% of the patients with larger amounts of ascites improved following symptomatic
and supportive treatment. In conclusion, liver CT examination is a valuable, safe,
and noninvasive tool for the diagnosis of HVOD caused by SA. In selected cases, liver
CT examination may replace liver biopsy and histological analysis.
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Affiliation(s)
- H Shao
- Department of Infectious Diseases, Taizhou Hospital Affiliated to Wenzhou Medical College, Linhai, China
| | - H Z Chen
- Department of Infectious Diseases, Taizhou Hospital Affiliated to Wenzhou Medical College, Linhai, China
| | - J S Zhu
- Department of Infectious Diseases, Taizhou Hospital Affiliated to Wenzhou Medical College, Linhai, China
| | - B Ruan
- State Key Laboratory for Diagnosis and Treatment of Infectious Disease, the First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Z Q Zhang
- Department of Infectious Disease, Xianju Hospital of Traditional Chinese Medicine, Xianju, China
| | - X Lin
- Department of Infectious Diseases, Taizhou Hospital Affiliated to Wenzhou Medical College, Linhai, China
| | - M F Gan
- Department of Infectious Diseases, Taizhou Hospital Affiliated to Wenzhou Medical College, Linhai, China
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Geng X, Bo CX, Shao H. [Effects of malathion on testicular enzyme activities and sperm quality of male rats]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2016; 34:329-32. [PMID: 27514410 DOI: 10.3760/cma.j.issn.1001-9391.2016.05.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE The aim of this study is to investigate the effects of sub chronic exposure to malathion on testicular enzyme activities and sperm quality of male rats. METHODS Forty male rats were divided into four groups: three exposure groups and a control group. Malathion was administered orally to male rats at 0, 33.75, 54.00, and 108.00 mg/kg for 60 days to evaluate the toxic alterations in sperm dynamics and testicular enzyme activities including ACP,LDH,SDH and γ-GT. The control rats were administered with an equivalent volume of distilled water in the same manner.After sacrificed, the testes were collected and weighed. RESULTS The body weight and the testis weight of animals showed a decreasing tendency, and there was a statistical difference between the 54.00, 108.00 mg/kg groups, and the control group (P<0.05). Malathion brought about marked reduction in testicular sperm counts, sperm motility, and significant growth of sperm malformation rate in 108.00 mg/kg group. A significant decrease in the activities of testicular enzyme ACP and γ-GT was observed in malathion exposed rats, while the activities of LDH was significant increased and there were no obvious effects on the activities of SDH. The activities of ACP, γ-GT and LDH showed a statistical difference between the 108.00 mg/kg groups, and the control group. CONCLUSION Malathion reduced the sperm counts and sperm motility, increased the malformation rate and reduced the activities of testicular enzymies of male rats.
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Affiliation(s)
- X Geng
- Shandong Institute of Prevention and Control of Occupational Health and Occupational Disease, Jinan 250062, China
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Miao PP, Meng T, Jia Q, Niu Y, Ye M, Ji YQ, Ju R, Chen XL, Shao H, Zheng YX, Dai YF. [Analysis of correlation between pulmonary function and expression levels of matrix metalloproteinases-9 and tissue inhibitor of metalloproteinase-1 among toluene diisocyanate exposed workers]. Zhonghua Yu Fang Yi Xue Za Zhi 2016; 50:418-22. [PMID: 27141897 DOI: 10.3760/cma.j.issn.0253-9624.2016.05.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE To investigate the effect of occupational toluene diisocyanate(TDI) exposure on matrix metalloproteinases-9 (MMP-9) and tissue inhibitor of metalloproteinase-1(TIMP-1), and analysis of the correlation of MMP-9,TIMP-1,MMP-9/TIMP-1 and lung function. METHODS In October 2014, based on cluster sampling, we conducted a cross-sectional study in a TDI production factory located in China's western region. 61 exposed workers were recruited from workers engaged in packing, operating and checking. Based on different levels of the external exposure, the packers were classified as high exposed group, while operators and checkers as low exposed group. 58 factory managers, matching age and agent, were selected as controls, having same work intense and not contacting the TDI or other allergens. The questionnaire surveys were used to obtain the agent, age, work age, smoking and drinking, personal and family allergic history, occupational history, and the recent health conditions. The levels of MMP-9 and TIMP-1 in serum of subjects were determind by ELISA. The time weighted average concentrations (8h-TWA) were used to describe the levels of TDI air exposure in working environment. Spearman correlation assay was used to investigate the correlation of MMP-9, TIMP-1, MMP-9/TIMP-1 and lung function, exposure time. RESULTS 8-hour TWA means of TDI air levels in exposed group, packers, operators and checkers were 0.39, 0.76, 0.25 mg/m(3), respectively . According to the external exposure concentration, the packers were classified as high exposed group, and the operators and checkers were classified as low exposed group. In controls, low exposed group and high exposed group, the levels of MMP-9, respectively, were (807.21±347.70),(586.91±317.50),(388.94±312.01) ng/ml (χ(2)=16.69, P<0.001), respectively, and the P50(P25-P75) of MMP-9/TIMP-1 were 4.67(2.87-6.68), 2.3(1.44-3.48), 1.11(0.59-1.48) (χ(2)=39.42, P<0.001), respectively, and the concentrations of TIMP-1, were (173.44±72.67), (236.12±51.98), (302.81±44.39) ng/ml (F=20.09, P< 0.001), respectively. The levels P50(P25-P75) of FVC, FEV1.0 and FEV1.0/FVC in exposed group were, 92.8% (86.0%-101.8%), 85.5%(76.7%-92.8%), 112.5(108.2-118.5), respectively, which were lower than that in control group (124.3%(107.9%-144.2%), 142.7%(119.1%-155.7%), 129.2(123.5-134))(Z values were 7.70, 8.97, 8.62, and all P<0.001). Spearman rank correlation analysis showed that levels of MMP-9 were positively associated with FEV1.0, and FEV1.0/FVC (r values were 0.27, 0.25, respectively, all P<0.05), and The levels of TIMP-1 were negatively associated with FVC, FEV1.0, and FEV1.0/FVC (r valuse were -0.33, -0.39, -0.39, all P<0.05).The levels of MMP-9 were negatively correlated with exposure time(r=-0.26, P=0.040). The positive correlations of MMP-9/TIMP-1 with FVC, FEV1.0, and FEV1.0/FVC were also found (r valuse were 0.34, 0.44, 0.40, all P<0.05). CONCLUSION TDI exposure could induce the downs of MMP-9 and MMP-9/TIMP-1 associated with lung functions. The MMP-9 and MMP-9/TIMP-1,in a way, could reflect the respiratory inflammatory injury caused by TDI exposure.
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Affiliation(s)
- P P Miao
- Key Laboratory of Chemical Safety and Health, Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention , Beijing 100050, China
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