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Zhang ZC, Li TT, Yu ST, Ge JN, Wei ZG, Sun BH, Chen WS, Tan J, Lei ST. [Retrospective analysis of 350 cases with dissection of lymph nodes posterior to right recurrent laryngeal nerve in endoscopic thyroidectomy through gasless axillary posterior approach]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2024; 59:21-26. [PMID: 38246755 DOI: 10.3760/cma.j.cn115330-20231014-00146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 01/23/2024]
Abstract
Objective: To evaluated the safety and feasibility of dissection of lymph nodes posterior to right recurrent laryngeal nerve (ⅥB compartment) in endoscopic thyroidectomy through gasless axillary posterior approach. Methods: A total of 350 cases with right lobe papillary thyroid carcinoma (PTC) who underwent endoscopic lobectomy, isthmusectomy and central compartment neck dissection via gasless axillary posterior approach based at the Department of General Surgery, Nanfang Hospital, Southern Medical University from June 2020 to December 2022 were retrospectively analyzed. Summarize the clinical, pathological characteristics, and postoperative complications of the patients. SPSS 25.0 was used for statistical analysis of the data. Results: All 350 patients underwent endoscopic surgery successfully, with no conversion to open surgery. There were 303 females and 47 males, with an average age of (36.3±9.2) years. Of those, 287 patients were in pT1a stage, 62 in pT1b stage, and one patient in pT2 stage. There was no T3 or T4 stage patient. The mean numbers of yielded lymph nodes in right central compartment and ⅥB compartment were 8.11±4.65 (range, 1-31) and 2.62±1.86 (range, 1-12), respectively. ⅥB compartment metastasis was detected in 52 (14.86%) of 350 patients. The incidence of transient recurrent laryngeal nerve injury was 0.86%(3/350). Postoperative hematoma occurred in three patients (0.86%). Conclusion: The dissection of ⅥB compartment in endoscopic thyroidectomy through gasless axillary posterior approach is safe and feasible in selected PTC patients.
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Affiliation(s)
- Z C Zhang
- Department of General Surgery, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - T T Li
- Department of General Surgery, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - S T Yu
- Department of General Surgery, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - J N Ge
- Department of General Surgery, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Z G Wei
- Department of General Surgery, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - B H Sun
- Department of General Surgery, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - W S Chen
- Department of General Surgery, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - J Tan
- Department of General Surgery, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - S T Lei
- Department of General Surgery, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
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Wang JX, Zhang JX, Xiang ZY, Zhang ZC, Xi D, Wan HL, Peng YS, Zhou SX. Spatial distribution pattern and correlation of dominant species in the arbor layer at a 25 hm 2 forest plot in Lushan Mountain, China. Ying Yong Sheng Tai Xue Bao 2023; 34:1491-1499. [PMID: 37694410 DOI: 10.13287/j.1001-9332.202306.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 09/12/2023]
Abstract
To explore the spatial pattern of zonal tree species in the subtropical subalpine mountain area on Lushan Mountain, a 25 hm2 forest plot was established in Yangtianping area of Lushan Mountain following the technical specification of CTFS in 2021. We classified these species into evergreen conifer species, deciduous broad-leaved species and evergreen broad-leaved species based on their leaf shape and deciduous or not to analyze the spatial pattern of dominant species of different types by spatial point pattern method. The results showed that Pinus taiwanensis, Cornus kousa subsp. chinensis, Platycarya strobilacea, Castanea henryi, Quercus serrata, Cornus controversa, Eurya muricata, Litsea elongata, and Eurya hebeclados were dominant species. Among these species, P. taiwanensis was the constructive one. The spatial pattern of dominant species was clustered at a certain scale, and gradually became to randomly distribution with the increases of scales. Evergreen conifer species was independent with deci-duous broad-leaved species and evergreen broad-leaved species at small scales, but was negatively correlated with them at large scales. Deciduous broad-leaved species and evergreen broad-leaved species were obviously negatively correlated with each other. Deciduous broad-leaved species were positively correlated or independent with each other at small scales, but were negatively correlated with each other at large scales. Evergreen broad-leaved species were positively correlated at small scales, independent at medium scales, and negatively correlated with each other at large scales.
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Affiliation(s)
- Jing-Xuan Wang
- Lushan Botanical Garden, Chinese Academy of Sciences, Jiujiang 332999, Jiangxi, China
| | - Jia-Xin Zhang
- Lushan Botanical Garden, Chinese Academy of Sciences, Jiujiang 332999, Jiangxi, China
| | - Ze-Yu Xiang
- Lushan Botanical Garden, Chinese Academy of Sciences, Jiujiang 332999, Jiangxi, China
| | - Zhao-Chen Zhang
- Lushan Botanical Garden, Chinese Academy of Sciences, Jiujiang 332999, Jiangxi, China
| | - Dan Xi
- Lushan Botanical Garden, Chinese Academy of Sciences, Jiujiang 332999, Jiangxi, China
| | - Hui-Lin Wan
- Lushan Botanical Garden, Chinese Academy of Sciences, Jiujiang 332999, Jiangxi, China
| | - Yan-Song Peng
- Lushan Botanical Garden, Chinese Academy of Sciences, Jiujiang 332999, Jiangxi, China
| | - Sai-Xia Zhou
- Lushan Botanical Garden, Chinese Academy of Sciences, Jiujiang 332999, Jiangxi, China
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3
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Guo J, Cai G, Li YQ, Zhang YX, Su YN, Yuan DY, Zhang ZC, Liu ZZ, Cai XW, Guo J, Li L, Chen S, He XJ. Author Correction: Comprehensive characterization of three classes of Arabidopsis SWI/SNF chromatin remodelling complexes. Nat Plants 2023; 9:847. [PMID: 37165040 DOI: 10.1038/s41477-023-01428-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Affiliation(s)
- Jing Guo
- College of Life Sciences, Beijing Normal University, Beijing, China
- National Institute of Biological Sciences, Beijing, China
| | - Guang Cai
- National Institute of Biological Sciences, Beijing, China
| | - Yong-Qiang Li
- National Institute of Biological Sciences, Beijing, China
| | - Yi-Xuan Zhang
- National Institute of Biological Sciences, Beijing, China
| | - Yin-Na Su
- National Institute of Biological Sciences, Beijing, China
| | - Dan-Yang Yuan
- National Institute of Biological Sciences, Beijing, China
| | | | - Zhen-Zhen Liu
- National Institute of Biological Sciences, Beijing, China
| | - Xue-Wei Cai
- National Institute of Biological Sciences, Beijing, China
| | - Jing Guo
- National Institute of Biological Sciences, Beijing, China
| | - Lin Li
- National Institute of Biological Sciences, Beijing, China
| | - She Chen
- National Institute of Biological Sciences, Beijing, China
- Tsinghua Institute of Multidisciplinary Biomedical Research, Tsinghua University, Beijing, China
| | - Xin-Jian He
- National Institute of Biological Sciences, Beijing, China.
- Tsinghua Institute of Multidisciplinary Biomedical Research, Tsinghua University, Beijing, China.
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4
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Wang F, Lu YS, Zhang ZC, Chen L, Yang YC, Zhang HW, Wang XR, Shu L, Shang XF, Liu PC, Yang QP, Zhang J. Altitudinal variations and seasonal dynamics of near-surface and soil temperatures in subtropical forests of Mt. Guanshan, Jiangxi Province, China. Ying Yong Sheng Tai Xue Bao 2023; 34:1161-1168. [PMID: 37236931 DOI: 10.13287/j.1001-9332.202305.019] [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: 05/28/2023]
Abstract
Temperature lapse rate (TLR), measured as the degree of temperature change along an altitudinal gradient, is a key indicator of multiple ecological processes of mountain systems. Although many studies have examined temperature changes of open air or near-surface along altitudes, we know little about altitudinal variations of soil temperature, which play an important role in regulating growth and reproduction of organisms, as well as ecosystem nutrient cycling. Based on temperature data of near-surface (15 cm above ground) and soil layers (8 cm below ground) from 12 sampling sites of subtropical forest along an altitudinal gradient (300-1300 m) in Jiangxi Guan-shan National Nature Reserve from September 2018 to August 2021, we calculated the lapse rates of mean, maximum, and minimum temperatures, as well as accumulated temperatures by using simple linear regression for both near-surface and soil temperature. The seasonal dynamics of aforementioned variables were also evaluated. The results showed that there were large differences among mean, maximum, and minimum lapse rates for annual near-surface temperature, which were 0.38, 0.31 and 0.51 ℃·(100 m)-1, respectively. But little variation was documented for soil temperature which were 0.40, 0.38 and 0.42 ℃·(100 m)-1, respectively. The seasonal variations of temperature lapse rates for near-surface and soil layers were minor except for minimum temperature. The lapse rates of minimum temperature were deeper in spring and winter for near-surface and in spring and autumn for soil layers. For growing degree days (GDD), the accumulated temperature under both layers were negatively correlated with altitude, and the lapse rates of ≥5 ℃ were 163 ℃·d·(100 m)-1 for near-surface and 179 ℃·d·(100 m)-1 for soil. The ≥5 ℃ GDD in soil were about 15 days longer than that in near-surface at the same altitude. The results showed inconsistent patterns of altitudinal variations between near-surface and soil temperature. Soil temperature and its lapse rates had minor seasonal variations compared with the near-surface counterparts, which was related to the strong buffering capacity of soil.
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Affiliation(s)
- Fang Wang
- School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China
| | - Yao-Shun Lu
- School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China
| | - Zhao-Chen Zhang
- Lushan Botanical Garden, Chinese Academy of Sciences, Jiujiang 332900, Jiangxi, China
| | - Lin Chen
- Administration of Jiangxi Guanshan National Nature Reserve, Yichun 336000, Jiangxi, China
| | - Yong-Chuan Yang
- Ministry of Education Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Chongqing University, Chongqing 400045, China
| | - Hong-Wei Zhang
- School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China
| | - Xiao-Ran Wang
- School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China
| | - Li Shu
- School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China
| | - Xiao-Fan Shang
- School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China
| | - Peng-Cheng Liu
- School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China
| | - Qing-Pei Yang
- Jiangxi Provincial Key Laboratory for Bamboo Germplasm Resources and Utilization, Jiangxi Agricultural University, Nanchang 330045, China
| | - Jian Zhang
- School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China
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5
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Sun Y, Yang HJ, Zhang ZC, Zhou YD, Li P, Zeng QS, Zhang XP, Fu WZ. A selective nerve-sparing procedure for patients with locally advanced rectal cancer with seminal vesicle infiltration (with video). Tech Coloproctol 2023; 27:83-84. [PMID: 35947240 DOI: 10.1007/s10151-022-02681-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/12/2022] [Accepted: 08/04/2022] [Indexed: 01/12/2023]
Affiliation(s)
- Y Sun
- Department of Colorectal Surgery, Tianjin Union Medical Center, Tianjin, 300121, China
| | - H J Yang
- Department of Colorectal Surgery, Tianjin Union Medical Center, Tianjin, 300121, China
| | - Z C Zhang
- Department of Colorectal Surgery, Tianjin Union Medical Center, Tianjin, 300121, China
| | - Y D Zhou
- Department of Colorectal Surgery, Tianjin Union Medical Center, Tianjin, 300121, China
| | - P Li
- Department of Colorectal Surgery, Tianjin Union Medical Center, Tianjin, 300121, China
| | - Q S Zeng
- Department of Colorectal Surgery, Tianjin Union Medical Center, Tianjin, 300121, China
| | - X P Zhang
- Department of Colorectal Surgery, Tianjin Union Medical Center, Tianjin, 300121, China
| | - W Z Fu
- Department of Colorectal Surgery, Tianjin Union Medical Center, Tianjin, 300121, China.
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Shang JY, Cai XW, Su YN, Zhang ZC, Wang X, Zhao N, He XJ. Arabidopsis Trithorax histone methyltransferases are redundant in regulating development and DNA methylation. J Integr Plant Biol 2022; 64:2438-2454. [PMID: 36354145 DOI: 10.1111/jipb.13406] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Accepted: 11/09/2022] [Indexed: 06/16/2023]
Abstract
Although the Trithorax histone methyltransferases ATX1-5 are known to regulate development and stress responses by catalyzing histone H3K4 methylation in Arabidopsis thaliana, it is unknown whether and how these histone methyltransferases affect DNA methylation. Here, we found that the redundant ATX1-5 proteins are not only required for plant development and viability but also for the regulation of DNA methylation. The expression and H3K4me3 levels of both RNA-directed DNA methylation (RdDM) genes (NRPE1, DCL3, IDN2, and IDP2) and active DNA demethylation genes (ROS1, DML2, and DML3) were downregulated in the atx1/2/4/5 mutant. Consistent with the facts that the active DNA demethylation pathway mediates DNA demethylation mainly at CG and CHG sites, and that the RdDM pathway mediates DNA methylation mainly at CHH sites, whole-genome DNA methylation analyses showed that hyper-CG and CHG DMRs in atx1/2/4/5 significantly overlapped with those in the DNA demethylation pathway mutant ros1 dml2 dml3 (rdd), and that hypo-CHH DMRs in atx1/2/4/5 significantly overlapped with those in the RdDM mutant nrpe1, suggesting that the ATX paralogues function redundantly to regulate DNA methylation by promoting H3K4me3 levels and expression levels of both RdDM genes and active DNA demethylation genes. Given that the ATX proteins function as catalytic subunits of COMPASS histone methyltransferase complexes, we also demonstrated that the COMPASS complex components function as a whole to regulate DNA methylation. This study reveals a previously uncharacterized mechanism underlying the regulation of DNA methylation.
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Affiliation(s)
- Ji-Yun Shang
- National Institute of Biological Sciences, Beijing, 102206, China
| | - Xue-Wei Cai
- National Institute of Biological Sciences, Beijing, 102206, China
| | - Yin-Na Su
- National Institute of Biological Sciences, Beijing, 102206, China
| | - Zhao-Chen Zhang
- National Institute of Biological Sciences, Beijing, 102206, China
| | - Xin Wang
- National Institute of Biological Sciences, Beijing, 102206, China
| | - Nan Zhao
- National Institute of Biological Sciences, Beijing, 102206, China
| | - Xin-Jian He
- National Institute of Biological Sciences, Beijing, 102206, China
- Tsinghua Institute of Multidisciplinary Biomedical Research, Tsinghua University, Beijing, 100084, China
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7
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Guo J, Cai G, Li YQ, Zhang YX, Su YN, Yuan DY, Zhang ZC, Liu ZZ, Cai XW, Guo J, Li L, Chen S, He XJ. Comprehensive characterization of three classes of Arabidopsis SWI/SNF chromatin remodelling complexes. Nat Plants 2022; 8:1423-1439. [PMID: 36471048 DOI: 10.1038/s41477-022-01282-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Accepted: 10/19/2022] [Indexed: 05/12/2023]
Abstract
Although SWI/SNF chromatin remodelling complexes are known to regulate diverse biological functions in plants, the classification, compositions and functional mechanisms of the complexes remain to be determined. Here we comprehensively characterized SWI/SNF complexes by affinity purification and mass spectrometry in Arabidopsis thaliana, and found three classes of SWI/SNF complexes, which we termed BAS, SAS and MAS (BRM-, SYD- and MINU1/2-associated SWI/SNF complexes). By investigating multiple developmental phenotypes of SWI/SNF mutants, we found that three classes of SWI/SNF complexes have both overlapping and specific functions in regulating development. To investigate how the three classes of SWI/SNF complexes differentially regulate development, we mapped different SWI/SNF components on chromatin at the whole-genome level and determined their effects on chromatin accessibility. While all three classes of SWI/SNF complexes regulate chromatin accessibility at proximal promoter regions, SAS is a major SWI/SNF complex that is responsible for mediating chromatin accessibility at distal promoter regions and intergenic regions. Histone modifications are related to both the association of SWI/SNF complexes with chromatin and the SWI/SNF-dependent chromatin accessibility. Three classes of SWI/SNF-dependent accessibility may enable different sets of transcription factors to access chromatin. These findings lay a foundation for further investigation of the function of three classes of SWI/SNF complexes in plants.
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Affiliation(s)
- Jing Guo
- College of Life Sciences, Beijing Normal University, Beijing, China
- National Institute of Biological Sciences, Beijing, China
| | - Guang Cai
- National Institute of Biological Sciences, Beijing, China
| | - Yong-Qiang Li
- National Institute of Biological Sciences, Beijing, China
| | - Yi-Xuan Zhang
- National Institute of Biological Sciences, Beijing, China
| | - Yin-Na Su
- National Institute of Biological Sciences, Beijing, China
| | - Dan-Yang Yuan
- National Institute of Biological Sciences, Beijing, China
| | | | - Zhen-Zhen Liu
- National Institute of Biological Sciences, Beijing, China
| | - Xue-Wei Cai
- National Institute of Biological Sciences, Beijing, China
| | - Jing Guo
- National Institute of Biological Sciences, Beijing, China
| | - Lin Li
- National Institute of Biological Sciences, Beijing, China
| | - She Chen
- National Institute of Biological Sciences, Beijing, China
- Tsinghua Institute of Multidisciplinary Biomedical Research, Tsinghua University, Beijing, China
| | - Xin-Jian He
- National Institute of Biological Sciences, Beijing, China.
- Tsinghua Institute of Multidisciplinary Biomedical Research, Tsinghua University, Beijing, China.
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Gao B, Jiao TY, Li YT, Chen H, Lin WP, An Z, Ru LH, Zhang ZC, Tang XD, Wang XY, Zhang NT, Fang X, Xie DH, Fan YH, Ma L, Zhang X, Bai F, Wang P, Fan YX, Liu G, Huang HX, Wu Q, Zhu YB, Chai JL, Li JQ, Sun LT, Wang S, Cai JW, Li YZ, Su J, Zhang H, Li ZH, Li YJ, Li ET, Chen C, Shen YP, Lian G, Guo B, Li XY, Zhang LY, He JJ, Sheng YD, Chen YJ, Wang LH, Zhang L, Cao FQ, Nan W, Nan WK, Li GX, Song N, Cui BQ, Chen LH, Ma RG, Zhang ZC, Yan SQ, Liao JH, Wang YB, Zeng S, Nan D, Fan QW, Qi NC, Sun WL, Guo XY, Zhang P, Chen YH, Zhou Y, Zhou JF, He JR, Shang CS, Li MC, Kubono S, Liu WP, deBoer RJ, Wiescher M, Pignatari M. Deep Underground Laboratory Measurement of ^{13}C(α,n)^{16}O in the Gamow Windows of the s and i Processes. Phys Rev Lett 2022; 129:132701. [PMID: 36206440 DOI: 10.1103/physrevlett.129.132701] [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: 10/13/2021] [Revised: 04/01/2022] [Accepted: 06/01/2022] [Indexed: 06/16/2023]
Abstract
The ^{13}C(α,n)^{16}O reaction is the main neutron source for the slow-neutron-capture process in asymptotic giant branch stars and for the intermediate process. Direct measurements at astrophysical energies in above-ground laboratories are hindered by the extremely small cross sections and vast cosmic-ray-induced background. We performed the first consistent direct measurement in the range of E_{c.m.}=0.24 to 1.9 MeV using the accelerators at the China Jinping Underground Laboratory and Sichuan University. Our measurement covers almost the entire intermediate process Gamow window in which the large uncertainty of the previous experiments has been reduced from 60% down to 15%, eliminates the large systematic uncertainty in the extrapolation arising from the inconsistency of existing datasets, and provides a more reliable reaction rate for the studies of the slow-neutron-capture and intermediate processes along with the first direct determination of the alpha strength for the near-threshold state.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - R J deBoer
- Center for Nuclear Study, University of Tokyo, Wako, Saitama 351-0198, Japan
| | - M Wiescher
- Center for Nuclear Study, University of Tokyo, Wako, Saitama 351-0198, Japan
- Wolfson Fellow of Royal Society, School of Physics and Astronomy, University of Edinburgh, King's Buildings, Edinburgh EH9 3FD, United Kingdom
| | - M Pignatari
- Konkoly Observatory, Research Centre for Astronomy and Earth Sciences (CSFK), Eötvös Loránd Research Network (ELKH), Konkoly Thege Miklós út 15-17, H-1121 Budapest, Hungary
- CSFK, MTA Centre of Excellence, Budapest, Konkoly Thege Miklós út 15-17, Budapest H-1121, Hungary
- E. A. Milne Centre for Astrophysics, Department of Physics and Mathematics, University of Hull, Hull, HU6 7RX, United Kingdom
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Qi PL, Zhou HR, Zhao QQ, Feng C, Ning YQ, Su YN, Cai XW, Yuan DY, Zhang ZC, Su XM, Chen SS, Li L, Chen S, He XJ. Characterization of an autonomous pathway complex that promotes flowering in Arabidopsis. Nucleic Acids Res 2022; 50:7380-7395. [PMID: 35766439 PMCID: PMC9303297 DOI: 10.1093/nar/gkac551] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Revised: 05/24/2022] [Accepted: 06/27/2022] [Indexed: 11/16/2022] Open
Abstract
Although previous studies have identified several autonomous pathway components that are required for the promotion of flowering, little is known about how these components cooperate. Here, we identified an autonomous pathway complex (AuPC) containing both known components (FLD, LD and SDG26) and previously unknown components (EFL2, EFL4 and APRF1). Loss-of-function mutations of all of these components result in increased FLC expression and delayed flowering. The delayed-flowering phenotype is independent of photoperiod and can be overcome by vernalization, confirming that the complex specifically functions in the autonomous pathway. Chromatin immunoprecipitation combined with sequencing indicated that, in the AuPC mutants, the histone modifications (H3Ac, H3K4me3 and H3K36me3) associated with transcriptional activation are increased, and the histone modification (H3K27me3) associated with transcriptional repression is reduced, suggesting that the AuPC suppresses FLC expression at least partially by regulating these histone modifications. Moreover, we found that the AuPC component SDG26 associates with FLC chromatin via a previously uncharacterized DNA-binding domain and regulates FLC expression and flowering time independently of its histone methyltransferase activity. Together, these results provide a framework for understanding the molecular mechanism by which the autonomous pathway regulates flowering time.
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Affiliation(s)
- Pei-Lin Qi
- National Institute of Biological Sciences, Beijing 102206, China.,PTN Joint Graduate Program, School of Life Sciences, Tsinghua University, Beijing 100084, China
| | - Hao-Ran Zhou
- National Institute of Biological Sciences, Beijing 102206, China
| | - Qiang-Qiang Zhao
- National Institute of Biological Sciences, Beijing 102206, China.,Graduate School of Peking Union Medical College, Beijing 100730, China
| | - Chao Feng
- National Institute of Biological Sciences, Beijing 102206, China
| | - Yong-Qiang Ning
- National Institute of Biological Sciences, Beijing 102206, China
| | - Yin-Na Su
- National Institute of Biological Sciences, Beijing 102206, China
| | - Xue-Wei Cai
- National Institute of Biological Sciences, Beijing 102206, China
| | - Dan-Yang Yuan
- National Institute of Biological Sciences, Beijing 102206, China
| | - Zhao-Chen Zhang
- National Institute of Biological Sciences, Beijing 102206, China
| | - Xiao-Min Su
- National Institute of Biological Sciences, Beijing 102206, China
| | - Shan-Shan Chen
- National Institute of Biological Sciences, Beijing 102206, China
| | - Lin Li
- National Institute of Biological Sciences, Beijing 102206, China
| | - She Chen
- National Institute of Biological Sciences, Beijing 102206, China.,Tsinghua Institute of Multidisciplinary Biomedical Research, Tsinghua University, Beijing 100084, China
| | - Xin-Jian He
- National Institute of Biological Sciences, Beijing 102206, China.,Tsinghua Institute of Multidisciplinary Biomedical Research, Tsinghua University, Beijing 100084, China
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Ran WX, Li TY, Zhang ZC, Ma Q, Xu XL. [Epidemic status of imported malaria before and after malaria elimination in Jiaozuo City of Henan Province]. Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi 2022; 34:191-193. [PMID: 35537843 DOI: 10.16250/j.32.1374.2021264] [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 analyze and compare the epidemiological characteristics of imported malaria in Jiaozuo City before and after malaria elimination, so as to provide insights into the malaria surveillance during the post-elimination stage and prevention of re-establishment of imported malaria. METHODS Data pertaining to the epidemic situation and individual investigation of malaria in Jiaozuo City before (from 2010 to 2016) and after malaria elimination (from 2017 to November, 2020) were captured from the National Notifiable Disease Reporting System and the Information System for Parasitic Diseases Control and Prevention of Chinese Center for Disease Control and Prevention and were analyzed statistically. RESULTS A total of 74 imported malaria cases were reported in Jiaozuo City from 2010 to 2021. Imported cases were predominantly Plasmodium falciparum malaria cases in Jiaozuo City before and after malaria elimination, and there was no significant difference in the proportion of malaria parasite species (χ2 = 0.234, P > 0.05). The imported malaria cases was predominantly reported in Wuzhi County, and was identified in overseas male farmers and businessmen at ages of 20 to 59 years, while the greatest number of imported malaria cases was reported in June and December before and after malaria elimination. The imported malaria cases predominantly acquired malaria parasite infections in sub-Saharan African countries; however, the proportion of imported malaria cases returning from Southeast Asian counties increased after malaria elimination than before malaria elimination (χ2 = 5.989, P < 0.05). The longest duration from onset to definitive diagnosis of malaria reduced from 27 days before malaria elimination to 18 days after malaria elimination, and the median duration reduced from 3 days to 2 days, while the proportion of definitive diagnosis of malaria increased from 60.47% before malaria elimination to 83.87% after malaria elimination (χ2 = 4.724, P < 0.05). In addition, the proportion of malaria cases definitively diagnosed and reported by medical institutions increased after malaria elimination than before malaria elimination (χ2 = 5.406, P < 0.05). CONCLUSIONS The imported malaria patients were predominantly P. falciparum malaria cases in Jiaozuo City during 2010 to 2021, and the patient's medical care-seeking awareness and medical staff's diagnosis and treatment ability have improved after malaria elimination. It is necessary to strengthen and improve malaria surveillance and response system and prevent the re-establishment of overseas imported malaria.
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Affiliation(s)
- W X Ran
- Jiaozuo Municipal Center for Disease Control and Prevention, Jiaozuo, Henan 454001, China
| | - T Y Li
- Jiaozuo Municipal Center for Disease Control and Prevention, Jiaozuo, Henan 454001, China
| | - Z C Zhang
- Jiaozuo Municipal Center for Disease Control and Prevention, Jiaozuo, Henan 454001, China
| | - Q Ma
- Jiaozuo Municipal Center for Disease Control and Prevention, Jiaozuo, Henan 454001, China
| | - X L Xu
- Jiaozuo Municipal Center for Disease Control and Prevention, Jiaozuo, Henan 454001, China
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11
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Zhang Z, Ren JG, Guo JL, An L, Li S, Zhang ZC, Chen Y, Liu H, Lei X. Effects of tai chi and qigong on rehabilitation after COVID-19: a protocol for systematic review and meta-analysis. BMJ Open 2022; 12:e059067. [PMID: 35338068 PMCID: PMC8960464 DOI: 10.1136/bmjopen-2021-059067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
INTRODUCTION COVID-19 is a public health emergency of international concern, which is characterised by rapid and widespread transmission, high mortality and complications. Several studies have shown the benefits of tai chi and qigong for recovery after COVID-19; however, no meta-analysis has been reported. Therefore, the purpose of this study is to evaluate the efficacy and safety of tai chi and/or qigong on rehabilitation after COVID-19 through a systematic review and meta-analysis to provide a reference and basis for clinical application. METHODS AND ANALYSIS This study will use the Cochrane Library, PubMed, Web of Science, Embase, China Knowledge Network, China Biomedical Literature Database, Chinese Scientific Journal Database and Wanfang Database. The time period is from the inception of the database to November 2021, with no language restrictions. Searches will be conducted using the subject terms "Taichi","Qigong" and "COVID-19" plus free-text words. Articles will be screened and collected by two reviewers independently. Included studies will be assessed for quality using the Cochrane Risk of Bias Assessment Tool. Statistical analyses will be performed using the Revman V.5.3 software. The primary outcomes include 1-second forced expiratory volume and 1-second forced vital capacity, oxygen saturation, total white cell count and quality of life score. Secondary outcomes include time to remission of major symptoms, incidence of adverse events, clinical cure rate and mortality. Subgroup and sensitivity analyses will also be used to explore and interpret the heterogeneity. This protocol is written based on the guideline of the Preferred Reporting Items for Systematic Reviews and Meta-analyses Protocol. ETHICS AND DISSEMINATION Ethical approval and consent are unnecessary because no primary data will be collected. The results will be disseminated through peer-reviewed publications. PROSPERO REGISTRATION NUMBER CRD42021288962.
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Affiliation(s)
- Zhe Zhang
- Department of Traditional Chinese Medicine, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, China
| | - J G Ren
- Department of Traditional Chinese Medicine, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, China
| | - J L Guo
- Department of Clinical Medicine of Traditional Chinese and Western Medicine, North Sichuan Medical College, Nanchong, Sichuan, China
| | - Lin An
- Department of Clinical Medicine of Traditional Chinese and Western Medicine, North Sichuan Medical College, Nanchong, Sichuan, China
| | - Shuang Li
- Department of Clinical Medicine of Traditional Chinese and Western Medicine, North Sichuan Medical College, Nanchong, Sichuan, China
| | - Z C Zhang
- Department of Clinical Medicine of Traditional Chinese and Western Medicine, North Sichuan Medical College, Nanchong, Sichuan, China
| | - Yan Chen
- Department of Clinical Medicine of Traditional Chinese and Western Medicine, North Sichuan Medical College, Nanchong, Sichuan, China
| | - Hui Liu
- Department of Clinical Medicine of Traditional Chinese and Western Medicine, North Sichuan Medical College, Nanchong, Sichuan, China
| | - Xiao Lei
- Department of Traditional Chinese Medicine, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, China
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12
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Zhang LY, Su J, He JJ, Wiescher M, deBoer RJ, Kahl D, Chen YJ, Li XY, Wang JG, Zhang L, Cao FQ, Zhang H, Zhang ZC, Jiao TY, Sheng YD, Wang LH, Song LY, Jiang XZ, Li ZM, Li ET, Wang S, Lian G, Li ZH, Tang XD, Zhao HW, Sun LT, Wu Q, Li JQ, Cui BQ, Chen LH, Ma RG, Guo B, Xu SW, Li JY, Qi NC, Sun WL, Guo XY, Zhang P, Chen YH, Zhou Y, Zhou JF, He JR, Shang CS, Li MC, Zhou XH, Zhang YH, Zhang FS, Hu ZG, Xu HS, Chen JP, Liu WP. Direct Measurement of the Astrophysical ^{19}F(p,αγ)^{16}O Reaction in the Deepest Operational Underground Laboratory. Phys Rev Lett 2021; 127:152702. [PMID: 34678013 DOI: 10.1103/physrevlett.127.152702] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Revised: 08/01/2021] [Accepted: 08/24/2021] [Indexed: 06/13/2023]
Abstract
Fluorine is one of the most interesting elements in nuclear astrophysics, where the ^{19}F(p,α)^{16}O reaction is of crucial importance for Galactic ^{19}F abundances and CNO cycle loss in first generation Population III stars. As a day-one campaign at the Jinping Underground Nuclear Astrophysics experimental facility, we report direct measurements of the essential ^{19}F(p,αγ)^{16}O reaction channel. The γ-ray yields were measured over E_{c.m.}=72.4-344 keV, covering the Gamow window; our energy of 72.4 keV is unprecedentedly low, reported here for the first time. The experiment was performed under the extremely low cosmic-ray-induced background environment of the China JinPing Underground Laboratory, one of the deepest underground laboratories in the world. The present low-energy S factors deviate significantly from previous theoretical predictions, and the uncertainties are significantly reduced. The thermonuclear ^{19}F(p,αγ)^{16}O reaction rate has been determined directly at the relevant astrophysical energies.
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Affiliation(s)
- L Y Zhang
- Key Laboratory of Beam Technology and Material Modification of Ministry of Education, College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875, China
| | - J Su
- Key Laboratory of Beam Technology and Material Modification of Ministry of Education, College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875, China
| | - J J He
- Key Laboratory of Beam Technology and Material Modification of Ministry of Education, College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875, China
| | - M Wiescher
- Department of Physics and The Joint Institute for Nuclear Astrophysics, University of Notre Dame, Notre Dame, Indiana 46556, USA
| | - R J deBoer
- Department of Physics and The Joint Institute for Nuclear Astrophysics, University of Notre Dame, Notre Dame, Indiana 46556, USA
| | - D Kahl
- Extreme Light Infrastructure-Nuclear Physics, Horia Hulubei National Institute for Research and Development in Physics and Nuclear Engineering (IFIN-HH), Bucharest-Măgurele 077125, Romania
| | - Y J Chen
- Key Laboratory of Beam Technology and Material Modification of Ministry of Education, College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875, China
| | - X Y Li
- Key Laboratory of Beam Technology and Material Modification of Ministry of Education, College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875, China
| | - J G Wang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - L Zhang
- China Institute of Atomic Energy, Beijing 102413, China
| | - F Q Cao
- China Institute of Atomic Energy, Beijing 102413, China
| | - H Zhang
- China Institute of Atomic Energy, Beijing 102413, China
| | - Z C Zhang
- College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China
| | - T Y Jiao
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Y D Sheng
- Key Laboratory of Beam Technology and Material Modification of Ministry of Education, College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875, China
| | - L H Wang
- Key Laboratory of Beam Technology and Material Modification of Ministry of Education, College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875, China
| | - L Y Song
- Key Laboratory of Beam Technology and Material Modification of Ministry of Education, College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875, China
| | - X Z Jiang
- Key Laboratory of Beam Technology and Material Modification of Ministry of Education, College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875, China
| | - Z M Li
- Key Laboratory of Beam Technology and Material Modification of Ministry of Education, College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875, China
| | - E T Li
- College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China
| | - S Wang
- Shandong Provincial Key Laboratory of Optical Astronomy and Solar-Terrestrial Environment, Institute of Space Sciences, Shandong University, Weihai 264209, China
| | - G Lian
- China Institute of Atomic Energy, Beijing 102413, China
| | - Z H Li
- China Institute of Atomic Energy, Beijing 102413, China
| | - X D Tang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - H W Zhao
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - L T Sun
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Q Wu
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - J Q Li
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - B Q Cui
- China Institute of Atomic Energy, Beijing 102413, China
| | - L H Chen
- China Institute of Atomic Energy, Beijing 102413, China
| | - R G Ma
- China Institute of Atomic Energy, Beijing 102413, China
| | - B Guo
- China Institute of Atomic Energy, Beijing 102413, China
| | - S W Xu
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - J Y Li
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - N C Qi
- Yalong River Hydropower Development Company, Chengdu 610051, China
| | - W L Sun
- Yalong River Hydropower Development Company, Chengdu 610051, China
| | - X Y Guo
- Yalong River Hydropower Development Company, Chengdu 610051, China
| | - P Zhang
- Yalong River Hydropower Development Company, Chengdu 610051, China
| | - Y H Chen
- Yalong River Hydropower Development Company, Chengdu 610051, China
| | - Y Zhou
- Yalong River Hydropower Development Company, Chengdu 610051, China
| | - J F Zhou
- Yalong River Hydropower Development Company, Chengdu 610051, China
| | - J R He
- Yalong River Hydropower Development Company, Chengdu 610051, China
| | - C S Shang
- Yalong River Hydropower Development Company, Chengdu 610051, China
| | - M C Li
- Yalong River Hydropower Development Company, Chengdu 610051, China
| | - X H Zhou
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Y H Zhang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - F S Zhang
- Key Laboratory of Beam Technology and Material Modification of Ministry of Education, College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875, China
| | - Z G Hu
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - H S Xu
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - J P Chen
- Key Laboratory of Beam Technology and Material Modification of Ministry of Education, College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875, China
| | - W P Liu
- China Institute of Atomic Energy, Beijing 102413, China
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13
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Wu YZ, Wang JR, Jian XD, Wang WJ, Zhang ZC, Yu LJ. [Investigation and analysis of a mass ammonia gas poisoning accident]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2021; 39:675-676. [PMID: 34624950 DOI: 10.3760/cma.j.cn121094-20200604-00321] [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: 06/13/2023]
Abstract
Objective: To investigation and analysis of ammonia gas leakage in a meat factory. Methods: In April 2013, Enterprise managers and workers were investigated, and clinical data of 24 patients were analyzed. Results: The company caused a leak in the ammonia pipeline maintenance operation, Among the patients, 20 had stimulus response and 4 had mild poisoning. Conclusion: To prevent group occupational ammonia poisoning, it is necessary to strengthen the awareness of occupational disease prevention of enterprise owners and the awareness of self-protection of workers.
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Affiliation(s)
- Y Z Wu
- Qilu Hospital of Shandong University, Jinan 250014, China
| | - J R Wang
- Qilu Hospital of Shandong University, Jinan 250014, China Jinan Fifth People's Hospital, Jinan 250021, China
| | - X D Jian
- Qilu Hospital of Shandong University, Jinan 250014, China
| | - W J Wang
- Qilu Hospital of Shandong University, Jinan 250014, China
| | - Z C Zhang
- Qilu Hospital of Shandong University, Jinan 250014, China Shandong University Hospital, Jinan 250100, China
| | - L J Yu
- Qilu Hospital of Shandong University, Jinan 250014, China
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14
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Zhang ZC, He B, Sun S, Zhang X, Li T, Wang HH, Xu LR, Afzal AJ, Geng XQ. The phytotoxin COR induces transcriptional reprogramming of photosynthetic, hormonal and defence networks in tomato. Plant Biol (Stuttg) 2021; 23 Suppl 1:69-79. [PMID: 33512048 DOI: 10.1111/plb.13239] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Accepted: 01/16/2021] [Indexed: 06/12/2023]
Abstract
Coronatine (COR) is a non-host specific phytotoxin secreted by Pseudomonas syringae pv. tomato that can induce leaf chlorosis and increase the virulence of pathogens during plant-pathogen interactions. Studies have shown that COR can regulate multiple physiological processes in plants, but its involvement in bacterial pathogenesis and plant growth regulation is not well understood. In this study, transcriptome sequencing was carried out on 4-week-old tomato leaves that were either mock-treated or treated with COR. Transcriptome sequencing led to the identification of 6144 differentially expressed genes (DEGs), of which 4361 genes were downregulated and 1783 genes were upregulated upon COR treatment. To obtain functional information on the DEGs, we annotated these genes using GO and KEGG databases. Functional classification analysis showed that the DEGs were primarily involved in photosynthesis, chlorophyll and carotenoid biosynthesis, jasmonic acid (JA) synthesis and phenylpropane metabolism. A total of 23 genes related to chlorophyll biosynthesis had significant changes, of which 22 genes were downregulated and one gene was upregulated, indicating that chlorophyll biosynthesis was inhibited upon COR treatment. A total of 17 photosystem I related genes and 22 photosystem II related genes involving 20 protein subunits were also downregulated. In the JA synthesis pathway, 25 genes were up regulated, and six genes were downregulated in COR treated samples. COR was also involved in the regulation of multiple secondary metabolites. The identified DEGs will help us better understand the virulence effects and physiological functions of COR and provide a theoretical basis for breeding resistance into economically important crops.
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Affiliation(s)
- Z C Zhang
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China
| | - B He
- Institute of Quality and Safety Testing Center for Agro-products, Xining City, China
| | - S Sun
- Shanxi Agricultural University, Taigu, China
| | - X Zhang
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China
| | - T Li
- Shanxi Agricultural University, Taigu, China
| | - H H Wang
- Edisto Research and Education Center, Clemson University, Blackville, SC, USA
| | - L R Xu
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China
| | - A J Afzal
- Division of Science, New York University, Abu Dhabi, UAE
| | - X Q Geng
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China
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15
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Sun Y, Yang HJ, Zhang ZC, Zhou YD, Li P, Zeng QS, Liu SX, Zhang XP. Fascial space priority approach for laparoscopic en bloc extended right hemicolectomy with pancreaticoduodenectomy for locally advanced colon cancer. Tech Coloproctol 2021; 25:1085-1087. [PMID: 33864526 DOI: 10.1007/s10151-021-02426-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Accepted: 02/01/2021] [Indexed: 12/18/2022]
Affiliation(s)
- Y Sun
- Department of Colorectal Surgery, Tianjin Union Medical Center, Tianjin, 300000, China
| | - H J Yang
- Department of Colorectal Surgery, Tianjin Union Medical Center, Tianjin, 300000, China
| | - Z C Zhang
- Department of Colorectal Surgery, Tianjin Union Medical Center, Tianjin, 300000, China
| | - Y D Zhou
- Department of Colorectal Surgery, Tianjin Union Medical Center, Tianjin, 300000, China
| | - P Li
- Department of Colorectal Surgery, Tianjin Union Medical Center, Tianjin, 300000, China
| | - Q S Zeng
- Department of Colorectal Surgery, Tianjin Union Medical Center, Tianjin, 300000, China
| | - S X Liu
- Department of General Surgery, Hubei No. 3 People's Hospital, Wuhan, China
| | - X P Zhang
- Department of Colorectal Surgery, Tianjin Union Medical Center, Tianjin, 300000, China.
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16
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Zhang ZC, Hu J, Kong YY, Ren M, Cai X. [Application of immunohistochemical staining of bcl-2, Ber-EP4, CD10, CK20, and Ki-67 in differential diagnosis between trichoblastoma and basal cell carcinoma]. Zhonghua Bing Li Xue Za Zhi 2021; 50:376-381. [PMID: 33831998 DOI: 10.3760/cma.j.cn112151-20200722-00587] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To study the utility of immunohistochemistry (IHC) in differential diagnosis between trichoblastoma (TB) and basal cell carcinoma (BCC). Methods: Fifty-eight cases of TB and 40 cases of BCC were collected at Fudan University Shanghai Cancer Center from January 2009 to December 2019 and retrospectively analyzed by IHC for bcl-2, Ber-EP4, CD10, CK20 and Ki-67. Fisher exact test was performed for statistical analysis. Results: Twenty-five (43.1%) TBs and 5 (12.5%) BCCs showed bcl-2 staining in the outermost layer of the epithelial nests, the difference was statistically significant (P<0.01). The proportion of cases with bcl-2 staining>75% of epithelial cells in BCC group was much higher than that in TB group (40% vs. 12.1%; P<0.01). BCC group showed larger proportions with Ber-EP4 staining>75%, 51%-75% of epithelial cells than TB group (12.5% vs. 1.7%, 37.5% vs. 8.6%;P<0.05). Fifty-five (94.8%) TBs demonstrated CD10 expression in the follicular stroma, while only 16 (40.0%) BCCs showed focal or scattered CD10 expression in reactive fibrous stroma (P<0.01). CK20 expression was present in 37 (63.8%) TBs with scattered pattern, but BCCs exhibited no CK20 staining except for only one case (2.5%) showing focal staining (P<0.01). Compared with TB group, the BCC group included more cases with Ki-67 labeling index ≥15% on average and ≥25% in hotspot areas (P<0.05). Conclusion: IHC is helpful in differential diagnosis between TB and BCC. Scattered CK20 staining pattern and stromal CD10 expression support the diagnosis of TB. Bcl-2 staining limited to the outermost layer of the proliferation is more likely to be found in TB. In contrast, Ber-EP4 positivity and higher Ki-67 labeling index tend to be present in BCC.
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Affiliation(s)
- Z C Zhang
- Department of Pathology, Fudan University Shanghai Cancer Center, Shanghai 200032, China
| | - J Hu
- Department of Pathology, Fudan University Shanghai Cancer Center, Shanghai 200032, China
| | - Y Y Kong
- Department of Pathology, Fudan University Shanghai Cancer Center, Shanghai 200032, China
| | - M Ren
- Department of Pathology, Fudan University Shanghai Cancer Center, Shanghai 200032, China
| | - X Cai
- Department of Pathology, Fudan University Shanghai Cancer Center, Shanghai 200032, China
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17
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Feng X, Zhang FQ, Xu FY, Mei XF, Zhang ZC, Li XR, Wang S. [Progress of researches on animal models of Blastocystis hominis infections]. Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi 2021; 33:102-106. [PMID: 33660484 DOI: 10.16250/j.32.1374.2020162] [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: 11/27/2022]
Abstract
Blastocystis hominis is a common parasitic protozoa in human and animal intestines; however, its pathogenicity remains controversial. Construction of animal models is of great significance to investigate the pathogenicity, pathogenic mechanisms and drug screening of B. hominis. Experimental animals, mode of infections, parasite strains and host immune status are important factors affecting the successful modeling of B. hominis infections in animals. Hereby, we review the progress of researches on animal models of B. hominis infections, and summarize the influencing factors and application of animal models of B. hominis infections, in order to provides insights into the selection of animals models of B. hominis infections.
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Affiliation(s)
- X Feng
- School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang 453003, China
| | - F Q Zhang
- School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang 453003, China
| | - F Y Xu
- School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang 453003, China
| | - X F Mei
- School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang 453003, China.,Xinxiang Key Laboratory of Pathogenic Biology, Xinxiang Medical University, China
| | - Z C Zhang
- School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang 453003, China.,Xinxiang Key Laboratory of Pathogenic Biology, Xinxiang Medical University, China
| | - X R Li
- School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang 453003, China.,Xinxiang Key Laboratory of Pathogenic Biology, Xinxiang Medical University, China.,College of Veterinary Medicine, Nanjing Agricultural University, China
| | - S Wang
- School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang 453003, China.,Xinxiang Key Laboratory of Pathogenic Biology, Xinxiang Medical University, China
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18
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Zhang FQ, Wang P, Feng X, Mi QM, Mei XF, Zhang ZC, Li XR, Wang S. [Progress of researches on global prevalence of Blastocystis hominis human infections and its subtypes]. Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi 2021; 33:84-94. [PMID: 33660482 DOI: 10.16250/j.32.1374.2020083] [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: 11/27/2022]
Abstract
Blastocystis hominis is a parasite that parasitizes in the intestines of humans and animals, and is closely related to a variety of gastrointestinal diseases such as abdominal pain and diarrhea. B. hominis is distributed worldwide, and the prevalence of B. hominis infections and dominant subgenotypes vary in countries and in regions from the same country. This paper reviews the global prevalence of B. hominis human infections, its subtypes and geographical distribution, so as to provide insights into the understanding of the global epidemiology of B. hominis and the management of B. hominis infections.
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Affiliation(s)
- F Q Zhang
- School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang 453003, China
| | - P Wang
- School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang 453003, China
| | - X Feng
- School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang 453003, China
| | - Q M Mi
- School of Environmental and Geographic Sciences, Shanghai Normal University, China
| | - X F Mei
- School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang 453003, China.,Xinxiang Key Laboratory of Pathogenic Biology, Xinxiang Medical University, China
| | - Z C Zhang
- School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang 453003, China.,Xinxiang Key Laboratory of Pathogenic Biology, Xinxiang Medical University, China
| | - X R Li
- School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang 453003, China.,Xinxiang Key Laboratory of Pathogenic Biology, Xinxiang Medical University, China.,College of Veterinary Medicine, Nanjing Agricultural University, China
| | - S Wang
- School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang 453003, China.,Xinxiang Key Laboratory of Pathogenic Biology, Xinxiang Medical University, China
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19
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Ren XH, Yang ZJ, Shi ZB, Yang ZC, Zha XQ, Gao Y, Zhang ZC. Development of a tunable multi-channel Doppler reflectometer on J-TEXT tokamak. Rev Sci Instrum 2021; 92:033545. [PMID: 33820104 DOI: 10.1063/5.0040915] [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: 12/17/2020] [Accepted: 03/03/2021] [Indexed: 06/12/2023]
Abstract
Doppler reflectometer is a powerful diagnostic tool to study the turbulence for tokamak plasmas. It can provide information on the density fluctuation, the poloidal rotation, the radial electric field, its shear, etc. A tunable multi-channel V-band (50-75 GHz) Doppler reflectometer system has been developed on the J-TEXT tokamak for the measurement under various toroidal magnetic fields. A universal serial bus controlled synthesizer is used as a source that can adjust the probing frequency remotely. This Doppler reflectometer can measure the plasma in 0.3 < ρ < 1 . Its radial resolution is <2 cm, and k⊥ is ∼ 4-12 cm-1. Based on the Doppler reflectometer, the perpendicular turbulence propagation velocity, the profile of the radial electric field, the geodesic acoustic mode, and some other phenomena have been observed on J-TEXT.
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Affiliation(s)
- X H Ren
- International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Z J Yang
- International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Z B Shi
- Southwestern Institute of Physics, P. O. Box 432, Chengdu 610041, China
| | - Z C Yang
- Southwestern Institute of Physics, P. O. Box 432, Chengdu 610041, China
| | - X Q Zha
- International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Y Gao
- International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Z C Zhang
- International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, ChinaSouthwestern Institute of Physics, P. O. Box 432, Chengdu 610041, China
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20
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Zhen ZZ, Liu JC, Zhou L, Xu Z, Zhang ZC, Sun FF, Lu SY, Zhu J, Wang J, Huang JT, Sun XF. [Treatment outcome of 100 patients with hepatoblastoma based on a new risk stratification]. Zhonghua Zhong Liu Za Zhi 2021; 43:228-232. [PMID: 33601490 DOI: 10.3760/cma.j.cn112152-20190603-00347] [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 provide the risk stratification method of hepatoblastoma (HB) suitable for implementation in China and explore the new treatment method for high-risk HB patients. Methods: A total of 100 cases of children and adolescents under 18 years old with newly diagnosed HB in Sun Yat-sen University Cancer Center and Sun Yat-sen University First Affiliated Hospital from September 2014 to September 2018 were included. According to the clinical stage, AFP level, pathological subtype and other factors, patients were stratified into four groups: extremely low-, low-, intermediate- and high-risk. The patients at very low risk were treated with surgery only and followed-up. The patients at very low risk were treated with C5V(Cisplatin+ 5-Fluroracil+ Vincristine) regimen for 4 courses. The patients at intermediate risk were treated with C5VD(Cisplatin+ 5-Fluroracil+ Vincristine+ Doxorubicin)regimen before and after surgery for 6-8 courses. The patients at high risk were treated with C5VD and IIV (ifoshamide+ irinotecan+ vincristine) alternately before and after surgery for 8 courses. Results: One hundred patients were stratified into extremely low-risk, low-risk, medium-risk and high-risk groups for 2, 10, 51 and 37 cases, respectively. Eighty three cases had evaluable lesions before chemotherapy. Among them, 65 patients achieved partial remission, stable disease and progressive disease were observed in 10, and 8 cases, respectively, with a response rate of 78.3%. During a median follow-up of 20 months, 30 patients experienced tumor relapse or progression, and 27 of them died. The 2-years progression-free survival (PFS) and overall survival (OS) rates were 69.2% and 72.0%, respectively. The 2-years PFS rates of patients with extremely low risk, low risk, medium risk and high risk were 100%, 88.9%, 75.3% and 43.2%, respectively. The 2-years OS rates were 100%, 100%, 81.0% and 44.8%, respectively. Conclusions: The novel HB risk classification is simple and feasible. With active comprehensive treatment, patients at extremely low-, low- and medium-risk have excellent outcomes. The survival rate of high-risk HB patients remains to be improved, and new treatment strategies need to be explored.
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Affiliation(s)
- Z Z Zhen
- Department of Pediatric Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Guangzhou 510060, China
| | - J C Liu
- Department of Pediatric Surgery, Sun Yat-sen University First Affiliated Hospital, Guangzhou 510080, China
| | - L Zhou
- Department of Pediatric Surgery, Sun Yat-sen University First Affiliated Hospital, Guangzhou 510080, China
| | - Z Xu
- Department of Pediatric Surgery, Sun Yat-sen University First Affiliated Hospital, Guangzhou 510080, China
| | - Z C Zhang
- Department of Pediatric Surgery, Sun Yat-sen University First Affiliated Hospital, Guangzhou 510080, China
| | - F F Sun
- Department of Pediatric Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Guangzhou 510060, China
| | - S Y Lu
- Department of Pediatric Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Guangzhou 510060, China
| | - J Zhu
- Department of Pediatric Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Guangzhou 510060, China
| | - J Wang
- Department of Pediatric Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Guangzhou 510060, China
| | - J T Huang
- Department of Pediatric Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Guangzhou 510060, China
| | - X F Sun
- Department of Pediatric Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Guangzhou 510060, China
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Sun Y, Yang HJ, Zhang ZC, Zhou YD, Li P, Zeng QS, Zhang XP. Fascial space priority approach for laparoscopic supralevator posterior pelvic exenteration with nerve sparing: anatomy and technique. Tech Coloproctol 2021; 25:747-748. [PMID: 33515339 DOI: 10.1007/s10151-020-02406-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Accepted: 12/28/2020] [Indexed: 11/26/2022]
Affiliation(s)
- Y Sun
- Department of Colorectal Surgery, Tianjin Union Medical Center, Tianjin, China
| | - H J Yang
- Department of Colorectal Surgery, Tianjin Union Medical Center, Tianjin, China
| | - Z C Zhang
- Department of Colorectal Surgery, Tianjin Union Medical Center, Tianjin, China
| | - Y D Zhou
- Department of Colorectal Surgery, Tianjin Union Medical Center, Tianjin, China
| | - P Li
- Department of Colorectal Surgery, Tianjin Union Medical Center, Tianjin, China
| | - Q S Zeng
- Department of Colorectal Surgery, Tianjin Union Medical Center, Tianjin, China
| | - X P Zhang
- Department of Colorectal Surgery, Tianjin Union Medical Center, Tianjin, China.
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Sun Y, Zhang ZC, Zhou YD, Li P, Zeng QS, Zhang XP. Fascial space priority approach for the management of the lateral ligaments in laparoscopic total mesorectal excision of the rectum. Tech Coloproctol 2020; 25:475-477. [PMID: 33095341 DOI: 10.1007/s10151-020-02360-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Accepted: 10/10/2020] [Indexed: 10/23/2022]
Affiliation(s)
- Y Sun
- Department of Colorectal Surgery, Tianjin Union Medical Center, Tianjin, 300000, China
| | - Z C Zhang
- Department of Colorectal Surgery, Tianjin Union Medical Center, Tianjin, 300000, China
| | - Y D Zhou
- Department of Colorectal Surgery, Tianjin Union Medical Center, Tianjin, 300000, China
| | - P Li
- Department of Colorectal Surgery, Tianjin Union Medical Center, Tianjin, 300000, China
| | - Q S Zeng
- Department of Colorectal Surgery, Tianjin Union Medical Center, Tianjin, 300000, China
| | - X P Zhang
- Department of Colorectal Surgery, Tianjin Union Medical Center, Tianjin, 300000, China.
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Sun Y, Zhang ZC, Zhou YD, Li P, Zeng QS, Zhang XP. High ligation of the inferior mesenteric artery with nerve-sparing in laparoscopic surgery for advanced colorectal cancer. Tech Coloproctol 2020; 25:343-344. [PMID: 33029660 DOI: 10.1007/s10151-020-02355-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/22/2020] [Accepted: 09/29/2020] [Indexed: 10/23/2022]
Affiliation(s)
- Y Sun
- Department of Colorectal Surgery, Tianjin Union Medical Center, Tianjin, 300000, China
| | - Z C Zhang
- Department of Colorectal Surgery, Tianjin Union Medical Center, Tianjin, 300000, China
| | - Y D Zhou
- Department of Colorectal Surgery, Tianjin Union Medical Center, Tianjin, 300000, China
| | - P Li
- Department of Colorectal Surgery, Tianjin Union Medical Center, Tianjin, 300000, China
| | - Q S Zeng
- Department of Colorectal Surgery, Tianjin Union Medical Center, Tianjin, 300000, China
| | - X P Zhang
- Department of Colorectal Surgery, Tianjin Union Medical Center, Tianjin, 300000, China.
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Chen GQ, Wang QM, Yu M, Cheng YD, Zhang ZC, Wang WS, Qiu Y, Sun LH, Peng K, Yang H. Notch signaling is involved in regulation of LPS-induced macrophage apoptosis through JNK/NF-kB signaling pathway. J BIOL REG HOMEOS AG 2020; 34:04. [PMID: 32048500 DOI: 10.23812/19-283-a] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Notch signaling plays a critical role in the development and function of macrophages. The aim of the present study was to investigate the relationship between Notch signaling pathway and macrophage apoptosis after LPS stimulation. In RAW 264.7 cells, the mRNA expression of Jagged1, Hes1, Hes 5 and GM-CSF, and protein expression of NICD1 and GM-CSF were increased after LPS stimulation. Inhibition of Notch signaling by γ-secretase inhibitor DAPT and the suppression of Notch1 expression using siRNA both significantly prevented LPS induced activation of JNK and NF-kB, and simultaneously the expression of GM-CSF was also down regulated significantly. JNK inhibitor SP600125 was used to block the phosphorylation of JNK signaling, Western blot results showed that the activation of NF-kB was blocked and expression of GM-CSF was down-regulated. Finally, flow cytometry analyses showed that the Notch signaling was involved in the regulation of macrophage apoptosis after LPS stimulation. Our study showed that the Notch signaling pathway was activated and involved in the regulation of macrophage apoptosis after LPS stimulation through JNK/ NF-kB signaling regulated GM-CSF expression.
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Affiliation(s)
- G Q Chen
- Department of General Surgery, Xinqiao Hospital, Army Medical University, Chongqing, China
| | - Q M Wang
- Department of General Surgery, Xinqiao Hospital, Army Medical University, Chongqing, China
| | - M Yu
- Department of General Surgery, Xinqiao Hospital, Army Medical University, Chongqing, China
| | - Y D Cheng
- Department of General Surgery, Xinqiao Hospital, Army Medical University, Chongqing, China
| | - Z C Zhang
- Department of General Surgery, Xinqiao Hospital, Army Medical University, Chongqing, China
| | - W S Wang
- Department of General Surgery, Xinqiao Hospital, Army Medical University, Chongqing, China
| | - Y Qiu
- Department of General Surgery, Xinqiao Hospital, Army Medical University, Chongqing, China
| | - L H Sun
- Department of General Surgery, Xinqiao Hospital, Army Medical University, Chongqing, China
| | - K Peng
- Department of General Surgery, Xinqiao Hospital, Army Medical University, Chongqing, China
| | - H Yang
- Department of General Surgery, Xinqiao Hospital, Army Medical University, Chongqing, China
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Wei J, Tian L, Zhang ZC, Wang HZ, Liu N, Sun XH. [Relationship of BMI and wrist joint index with carpal tunnel syndrome in manual laborers]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2019; 37:30-33. [PMID: 30884585 DOI: 10.3760/cma.j.issn.1001-9391.2019.01.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To evaluate the severity of median nerve damage in patients with carpal tunnel syndrome (CTS) , and to analyze its relationship with body mass index (BMI) and wrist joint index. Methods: From May 2016 to January 2017, 23 patients with mild CTS (mild group) and 35 patients with moderate to severe CTS (moderate to severe group) were enrolled in this study. And 22 healthy volunteers matched for sex and age were selected as control group. The neuroelectrophysiological monitor was used to measure the median nerve movement and sensory nerve conduction in the subjects. The BMI and wrist joint index were calculated. The relationship of neuroelectrophysiological parameters with BMI and wrist joint index was analyzed in the CTS patients. Results: Compared with the control group, the mild group and the moderate to severe group had significantly higher wrist joint index, significantly longer distal motor latency (DML) of the median nerve, and significantly lower sensory nerve conduction velocity (SNCV) and sensory nerve action potential (SNAP) amplitude of the finger 1-wrist and finger 3-wrist (P<0.01) ; the moderate to severe group had significantly higher BMI and significantly lower composite muscle action potential (CMAP) amplitude (P<0.01) . The wrist joint index and BMI were positively correlated with DML of the median nerve and negatively correlated with SCV and SNAP amplitude of the finger 1-wrist and finger 3-wrist (all P<0.05) . The patients with a wrist joint index of >0.73 had a significantly higher risk of CTS than those with a wrist joint index of <0.73 (odd ratio=30.67, 95% confidence interval: 3.79-248.36) . Conclusion: A wrist joint index of >0.73 is an independent risk factor for CTS in manual laborers. CTS should be prevented in the manual laborers with high wrist joint index and BMI.
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Affiliation(s)
- J Wei
- The Third Central Clinical College of Tianjin Medical University, Tianjin 300170, China;Department of Senior Ward, Tianjin Third Central Hospital, Tianjin 300170, China; Tianjin Key Laboratory of Artificial Cell, Artificial Cell Engineering Technology Research Center of Public Health Ministry, Tianjin Institute of Hepatobiliary Disease, Tianjin 300170, China
| | - L Tian
- Department of Neurology, Tianjin Third Central Hospital, Tianjin 300170, China; Tianjin Key Laboratory of Artificial Cell, Artificial Cell Engineering Technology Research Center of Public Health Ministry, Tianjin Institute of Hepatobiliary Disease, Tianjin 300170, China
| | - Z C Zhang
- Department of Neurology, Tianjin Third Central Hospital, Tianjin 300170, China; Tianjin Key Laboratory of Artificial Cell, Artificial Cell Engineering Technology Research Center of Public Health Ministry, Tianjin Institute of Hepatobiliary Disease, Tianjin 300170, China
| | - H Z Wang
- Department of Senior Ward, Tianjin Third Central Hospital, Tianjin 300170, China; Tianjin Key Laboratory of Artificial Cell, Artificial Cell Engineering Technology Research Center of Public Health Ministry, Tianjin Institute of Hepatobiliary Disease, Tianjin 300170, China
| | - N Liu
- Department of Neurology, Tianjin Third Central Hospital, Tianjin 300170, China; Tianjin Key Laboratory of Artificial Cell, Artificial Cell Engineering Technology Research Center of Public Health Ministry, Tianjin Institute of Hepatobiliary Disease, Tianjin 300170, China
| | - X H Sun
- Department of Neurology, Tianjin Third Central Hospital, Tianjin 300170, China; Tianjin Key Laboratory of Artificial Cell, Artificial Cell Engineering Technology Research Center of Public Health Ministry, Tianjin Institute of Hepatobiliary Disease, Tianjin 300170, China
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Wu YZ, Kan BT, Wang WJ, Zhang ZC, Jia JE, Li XQ, Han J, Yu LJ, Jian XD. [The experimental study of diquat on the half-Lethal dose and pothological injuny of related organs in wistor rats]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2019; 36:813-818. [PMID: 30646642 DOI: 10.3760/cma.j.issn.1001-9391.2018.11.004] [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 explore the acute toxicity of Diquat in mice and to calculate the median lethal dose (LD(50)) of Diquat to rats and observe the pathological changes of tissues and organs in rats with different concentrations of Diquat. Methods: Diquat solution of 50 mg/kg was prepared freshly with 1 000 mg of Diquat and dilute the solution with water to a total of 20 ml. A total of 99 healthy adult male Wistar rats were randomly divided into part one, part two and control groups. In the first part, 36 rats were randomly divided into 4 groups: 100 mg/kg group, 200 mg/kg group, 300 mg/kg group and 400 mg/kg group, which were treated with 100 mg/kg, 200 mg/kg, 300 mg/kg and 400 mg/kg of Diquat solution by gavage, respectively. The death and symptoms of poisoning after intragastric administration were recorded, and the maximum tolerated dose and absolute lethal dose were measured. In the second part, 54 rats were randomly divided into 6 groups: 200 mg/kg group, 220 mg/kg group, 240 mg/kg group, 260 mg/kg、280 mg/kg group and 300 mg/kg group, whichwere treated with 200 mg/kg, 220 mg/kg, 240 mg/kg, 260 mg/kg, 280 mg/kg and 300 mg/kg of Diquat solution by gavage, respectively. The survival of rats in different concentration of Diquat was observed and the LD(50) was calculated by Excel processing the formula of Koch's method. The control group were given equal volume water under the same experimental conditions. And moreover, the lungs, kidneys, hearts, livers, and brain tissues were collected and fixed by formaldehyde, embedded by paraffin, and sectioned for histopathological light microscopy. Results: The maximum tolerated dose was 240 mg/kg and the absolute lethal dose was 300 mg/kg. The LD(50) of Diquat for Rats was 280.58 mg/kg. The high-dose group had significantly more organ damage than the low-dose group after diquat poisoning. Conclusion: The determination of the half-lethal dose of diquat, at the same time observed multiple organs damaged in rats after the diquat quickly poisoned. Kidneys, lungs and heart might be the main organ which was heavily damaged. With the extension of observation time, the organ damage of rats exposed to small doses gradually stabilized.
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Affiliation(s)
- Y Z Wu
- Shandong university school of public health, Jinan 250014, China
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Zhang ZC, Li PZ, Tang HY, Cheng L. [Correlation analysis of eosinophils in peripheral blood and polyp tissues of patients with chronicrhinosinusitis with nasal polyps]. Lin Chung Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2019; 33:14-16. [PMID: 30669192 DOI: 10.13201/j.issn.1001-1781.2019.01.004] [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] [Received: 11/16/2018] [Indexed: 11/12/2022]
Abstract
Objective:To explore the correlation between peripheral blood eosinophils and tissue eosinophils in patients with chronic rhinosinusitis with nasal polyps(CRSwNP) in different periods.Method:This trial was a prospective study involved 342 patients with CRSwNP who were treated by endoscopic sinus surgery in the Huai'an First People's Hospital, Nanjing Medical University in 2008, 2012 and 2016. Nasal polyp resection specimens were stained by HE.Tissue eosinophils were counted per high-power field, and peripheral blood eosinophils were collected from blood routine examination before operation.The relationship between peripheral blood eosinophils and tissue eosinophils were evaluated.Result:The correlation between peripheral blood eosinophils and tissue eosinophils was positive in nasal polyps in 2008,2012 and 2016(r= 0.275,0.435,0.505, respectively). AUC values were all greater than 0.7. Conclusion:There is a positive correlation between peripheral blood eosinophils and tissue eosinophils infiltration in patients with CRSwNP. Although the cutoff value is changing, peripheral blood eosinophils can be used as an indicator for predicting eosinophilic CRSwNP.
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Affiliation(s)
- Z C Zhang
- Department of Otorhinolaryngology, the Affiliated Huaian No.1 People's Hospital of Nanjing Medical University, Huai'an,223300,China
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Li QL, Liu JL, Wang JR, Jian XD, Kan BT, Zhang ZC. [The study of using cordyceps-astragalus-salvia miltiorrhiza to treat acute lung injury induced by paraquat poisoning in rats]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2019; 35:251-256. [PMID: 28614921 DOI: 10.3760/cma.j.issn.1001-9391.2017.04.003] [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 study the therapy of cordyceps-astragalus-salvia miltiorrhiza in treating acute lung injury and pulmonary interstitial fibrosis induced by paraquat poisoning. Methods: All 120 adult Wister male rats were randomly assigned to three groups, the paraquat poisoning group (rats were intragastric administration paraquat 50 mg/kg body weight once at the beginning) , the cordyceps-astragalus-salvia miltiorrhiza therapy group (rats were given cordyceps-astragalus-salvia miltiorrhiza 90 mg/kg body weight intragastric administration half an hour after paraquat was given, then the same dose was given once a day) ; control group (rats were intragastric administration with physiological saline) . At 7th, 14th, 21st, and 28th day rats were sacrificed postanesthetic respectively after paraquat exposure, sample of lung tissue, bronchoalveolar lavage (BAL) , and venous blood were collected. GSH, SOD, TNF-α, TGF-β1, and HYP in plasma, bronchoalveolar lavage (BAL) , and the lung homogenates were determined. Optical microscope was performed to examine pathological changes in lung. Results: Each experimental time point paraquat group and the treatment group rats serum SOD content significantly lower than the control group (P<0.05) . Each experimental time point the treatment group rats serum SOD levels increased significantly than that of paraquat group (P<0.05) . Each experimental time point paraquat group rats serum GSH content significantly lower than that of the control group (P<0.05) . Treatment group rats 7 days time GSH content significantly lower than that of the control group (P<0.05) . Treatment group 21 days, 28 days GSH content was increased significantly than that of the paraquat group (P<0.05) . Each experimental time point paraquat group rats alveolar lavage SOD content was significantly lower than that of the control group (P<0.05) . Treatment group 7 days, 14 days time SOD content was significantly lower than that of the control group (P<0.05) , Treatment group 21 days, 28 days SOD content was increased significantly than that of the paraquat group (P<0.05) . Each experimental time point paraquat group and the treatment group rats alveolar lavage GSH content significantly were lower than that of the control group (P<0.05) . Treatment group days 14 and 21 days, 28 days GSH content was increased significantly than that of the paraquat group (P<0.05) . Each experimental time point paraquat group rats alveolar lavage TNF α levels was higher than that of the control group (P<0.05) . Treatment group 7 days, 14 days the rat alveolar lavage TNF α levels was higher than that of the control group (P<0.05) . Treatment group 21 days, 28 days TNF α content significantly was decreased than that of paraquat group (P<0.05) . Paraquat group days 14 and 21 days, 28 days HYP content was significantly higher than that of control group (P<0.05) . Treatment group 21 days HYP content was significantly higher than that of control group (P<0.05) . Treatment group 28 days time HYP content in lung tissue of rats was significantly decreased than that of the paraquat group (P<0.05) . Each experimental time point paraquat group rat lung tissue (tissue homogenate) TGF-β1 content was higher than that of the control group, the difference was statistically significant (P<0.05) . Under optical microscope, the tissue damage of lung was aggravated, and reduced after cordyceps-astragalus-salvia miltiorrhiza was administrated. Conclusion: Cordyceps-astragalus-salvia miltiorrhiza can reduce inflammation factor releasing, and relieve lung injury. It has therapeutic effect on lung injury induced by paraquat poisoning.
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Affiliation(s)
- Q L Li
- Shandong University Hospital, Jinan 250012, China
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Zhang ZC, Liu JL, Jian XD, Wang K. [An investigation of an accident of occupational acute hydrogen sulfide poisoning]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2018; 35:521-522. [PMID: 29081104 DOI: 10.3760/cma.j.issn.1001-9391.2017.07.012] [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 an accident of occupational acute hydrogen sulfide poisoning, and to analyze related clinical data. Methods: An investigation was performed for an accident of occupational acute hydrogen sulfide poisoning in a place in Shandong, China, in July 2016, and related clinical data were summarized. Results: This was a typical accident of occupational acute hydrogen sulfide poisoning, and a lack of occupational protection and illegal operation were the major causes of this accident. Of all five patients, four experienced coma, toxic encephalopathy, and respiratory failure and were cured at last, and one had cortical syndrome after long-term treatment and died of pulmonary infection seven months later. Conclusions: In case of occupational acute hydrogen sulfide poisoning, rescuers should help the persons who are poisoned reasonably and meanwhile ensure their own safety.
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Affiliation(s)
- Z C Zhang
- Jia June Department of Poisoning & Occupational Diseases of Shandong university Qilu hospital. Jinan 250012, China
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Jiang LQ, Liu GS, Yang ZZ, Shen XJ, Yang F, Zhang ZC, Gong LB. [A bibliometric analysis of literature on hand-transmitted vibration in China, 1990-2016]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2018; 35:932-935. [PMID: 29495159 DOI: 10.3760/cma.j.issn.1001-9391.2017.12.013] [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 features of literature on hand-transmitted vibration in China, 1990-2016. Methods: In September 2017, the studies on hand-transmitted vibration in China, which were published in Chinese or English during 1990-2016, with "China" and "Taiwan" as the places where author affiliations were located, were retrieved. A bibliometric analysis was performed to investigate the type of articles, publication time, the journals in which articles were published, author affiliations, author regions, and funding. Results: A total of 205 articles on hand-transmitted vibration were retrieved. There were 7.59 articles on average published annually from 1990 to 2016. In the 205 articles, 114 (55.61%) were published in the journals indexed in one or two core journal databases. In the 64 journals, 22 (34.38%) were indexed in one or two core journal databases. The first authors were from 22 provincial regions (provinces, autonomous regions, or centrally administered municipalities) in China, with 152 articles (74.15%) by the authors in the top five regions. There were a total of 876 authors, and the co-authorship degree was 4.27 (876/205). Most of the first authors (136 articles, 66.34%) were affiliated with universities or institutes for prevention and control of occupational diseases. Among the 205 articles, 103 (50.24%) were original articles or investigations, and 72 (35.12%) were funded. Conclusion: The studies on hand-transmitted vibration fluctuated and increased from 1990 to 2016, with a relatively concentrated distribution in terms of sources, regions, and institutions. Interregional and international academic exchange should be strengthened.
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Affiliation(s)
- L Q Jiang
- Department of Occupational Disease Control and Prevention of Xishan Coal and Electricity (Group) Co., Ltd, Taiyuan 030053, China
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Yu LJ, Jian XD, Zhang ZC, Ren YL, Ning Q, Wang K, Gao BJ, Jia JE. [Clinical analysis of lower limb thrombosis caused by paraquat poisoning]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2018; 36:58-60. [PMID: 29495185 DOI: 10.3760/cma.j.issn.1001-9391.2018.01.018] [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 causes of peripheral vascular thrombosis in patients with paraquat poisoning. Methods: The patients with paraquat poisoning who were admitted to our department in recent two years were observed to screen out the patients with large vessel thrombosis. The data on toxic exposure history, clinical features, and treatment were collected to analyze the causes of thrombosis in the patients with paraquat poisoning. Results: Three patients had typical lower limb thrombosis. There was one case of right common femoral vein thrombosis, one case of bilateral calf muscle vein thrombosis, and one case of right calf superficial vein thrombosis and right calf muscle vein thrombosis. Conclusions: After paraquat poisoning, the blood is in a hypercoagulable state and prolonged bed rest may increase the risk of thrombosis.
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Affiliation(s)
- L J Yu
- Shandong university school of public health, Jinan 250014, China
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Zhang ZC, Liu XM, Bai R. [An up-to-date review on the relationship between non-alcoholic fatty liver disease and cardiac function]. Zhonghua Xin Xue Guan Bing Za Zhi 2018; 46:313-317. [PMID: 29747331 DOI: 10.3760/cma.j.issn.0253-3758.2018.04.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
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Ling JW, Lu PR, Zhang YB, Jiang S, Zhang ZC. miR-367 promotes uveal melanoma cell proliferation and migration by regulating PTEN. Genet Mol Res 2017; 16:gmr-16-03-gmr.16039067. [PMID: 28829890 DOI: 10.4238/gmr16039067] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
We aimed to investigate the biological role of miR-367 in uveal melanoma cell growth and migration, and the underlying mechanism responsible. Quantitative real-time polymerase chain reaction was performed to evaluate miR-367 expression in uveal melanoma tissue samples and cell lines. A miR-367 mimic, miR-367 inhibitor, and negative control oligonucleotide were transfected into these cells to investigate the function of this microRNA. In addition, the role of PTEN in miR-367-mediated uveal melanoma cell growth and migration was evaluated. miR-367 was significantly upregulated in uveal melanoma cells and tissue samples (both P < 0.01). Its inhibition suppressed the proliferation, cell cycle transition, and migration of such cells, and increased levels had the opposite effect. PTEN was confirmed to be a target gene of miR-367. More importantly, co-transfection with a PTEN construct lacking the 3'-untranslated region mitigated miR-367 mimic-induced promotion of uveal melanoma cell proliferation and migration. In summary, miR-367 was found to be upregulated in this malignancy, and may promote uveal melanoma cell proliferation and migration, at least in part by regulating PTEN.
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Affiliation(s)
- J W Ling
- Department of Ophthalmology, Third Hospital of Zhangjiagang, Zhangjiagang, China
| | - P R Lu
- Department of Ophthalmology, First Affiliated Hospital of SooChow University, SooChow, China
| | - Y B Zhang
- Department of Ophthalmology, Third Hospital of Zhangjiagang, Zhangjiagang, China
| | - S Jiang
- Department of Ophthalmology, Third Hospital of Zhangjiagang, Zhangjiagang, China
| | - Z C Zhang
- Department of Ophthalmology, Third Hospital of Zhangjiagang, Zhangjiagang, China
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Zhang ZC, Dou D, Wang XY, Xie DH, Yan ZC. [Analysis of the application and funding projects of National Natural Science Foundation of China in the field of burns and plastic surgery from 2010 to 2016]. Zhonghua Shao Shang Za Zhi 2017; 33:65-67. [PMID: 28219137 DOI: 10.3760/cma.j.issn.1009-2587.2017.02.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
We analyzed the data of application and funding projects of the National Natural Science Foundation of China (NSFC) during 2010-2016 in the field of burns and plastic surgery and summarized the NSFC funding pattern, the research hotspots, and weaknesses in this field. The NSFC has funded 460 projects in the field of burns and plastic surgery, with total funding of RMB 227.96 million. The scientific issues involved in the funding projects include orthotherapy against malformations, wound repair, basic research of burns, skin grafting, scars prevention, and regeneration of hair follicle and sweat glands. The research techniques involved in the funding projects are diversified. NSFC plays an important role in the scientific research and talents training in the field of burns and plastic surgery.
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Affiliation(s)
- Z C Zhang
- Department of Critical Care Medicine, the Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou 310009, China
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35
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Wang ZW, Li XX, Jian XD, Zhang ZC, Kan BT. [The study of using salvianolate treat acute lung injury in rats induced by paraquat]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2017; 35:342-347. [PMID: 28780789 DOI: 10.3760/cma.j.issn.1001-9391.2017.05.005] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To establish to paraquat poisoning acute lung injury animal model to study the therapeutic effect of Salvia polyphenols acid salt of paraquat-induced acute lung injury. Methods: Adult male Wister rats 120, were randomly divided into three groups: the paraquat exposure group, the start of the experiment to give a one-time 20% paraquat dope orally 50 mg/kg body weight of rats; salvianolate treatment group, the start of the experiment paraquat to give a one-time 20% the stock solution orally 50 mg/kg body weight of rats, and then given daily intraperitoneal injection of 200 mg/kg body weight of rats salvianolate; blank control group was given the same amount normal saline. The exposure group, the treatment group and control group rats were sacrificed after anesthesia in the 3rd, 7th, 14th, 21st day from the beginning of the experiment respectively, and taken out and preserved venous blood specimens and lung tissue to be tested. Venous detection heme oxygenase-1 (HO-1) , the lung tissue detection heme oxygenase-1 (HO-1) , hydroxyproline (HYP) . And do biopsy specimens from some of the lung tissue, HE and Masson staining observed by optical microscope. Results: Compared with control group, model group 7, 14, 21 days had elevated levels of serum and lung tissue HO-1 (all P<0.05) ; Treatment group 3, 7, 14, 21 days increased (all P<0.05) , and 3, 7, 14 days is higher than the model group (compared with model group, P<0.05) . Compared with control group, treatment group 3 days and model group, 14, 21 days HYP content in lung tissue increased significantly (all P<0.05) ; 21 days, compared with model group, HYP content of treatment group reduce obviously, the difference was statistically significant (P<0.05) . Optical microscope observation, lung tissue damage and aggravated with the experimental increase in the number of days, inflammatory cell infiltration, alveolar septal fibrosis gradually formed. The treatment group experimental animal lung tissue to reduce inflammation, lung fibrosis relief. Conclusion: Paraquat (50 mg/kg body weight) to fill the stomach can be induced model of acute lung injury in the rats. The serum HO-1 expression and HO-1, HYP content in lung tissue increased obviously in model rats. Salvia miltiorrhiza polyphenols acid salt to a certain degree and stage influenced the expression of HO-1 and HYP, relieve acute lung injury and pulmonary fibrosis, has certain curative effect in the treatment of paraquat poisoning.
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Affiliation(s)
- Z W Wang
- Shandong University qilu hospital, Jinan 250012, China
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Wang WJ, Li XX, Jian XD, Wu YZ, Wang K, Jia JE, Zhang ZC. [A group of occupational acute methyl bromide poisoning incident]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2017; 35:291-292. [PMID: 28614932 DOI: 10.3760/cma.j.issn.1001-9391.2017.04.014] [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: 06/07/2023]
Abstract
Objective: To investigate a mass of occupational acute methyl bromide poisoning incident and analyzed their clinical data. Methods: To investigate an incident a mass of occupational acute methyl bromide poisoning in occurred in Shandong province in November 2016, and the clinical datas of 3 cases of severe patients with methyl bromide poisoning were analysed. Results: This event was a sudden occupational poisoning incident. Lack of vocational training and irregularities is the main reason for the accident 3 patients with nervous system, respiratory system, circulatory system, urinary system damage is given priority to, after comprehensive rescue treatment, 2 cases died and 1 case survived. Conclusions: Methyl bromide can cause severe poisoning, has high mortality in patients with acute severe poisoning.
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Affiliation(s)
- W J Wang
- Shandong University School of Public Health, Jinan 250014, China
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37
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Sun GS, Dai ZL, Bosland PW, Wang Q, Sun CQ, Zhang ZC, Ma ZH. Characterizing and marker-assisting a novel chili pepper (Capsicum annuum L.) yellow bud mutant with cytoplasmic male sterility. Genet Mol Res 2017; 16:gmr-16-01-gmr.16019459. [PMID: 28252171 DOI: 10.4238/gmr16019459] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Cytoplasmic male sterility (CMS) in pepper is a better way to produce hybrid seeds compared to manual production. We used the two sequence characterized amplified region (SCAR) markers (CRF-SCAR and CMS-SCAR130) in CMS pepper, to identify the genotype. We assembled two CMS yellow bud mutants (YBM; YBM12-A and YBM12-B). This mutation in leaf color is controlled by a single dominant nuclear gene. The aim was to create a new hybrid seed production method that reduces the costs and increases F1 hybrid seed purity. The results suggest that the CRF-SCAR and CMS-SCAR130 markers can be used together in multiple generations to screen for restorer or maintainer genes. We found the marker linked to the restorer gene (Rf) in the C-line and F1 hybrids, as well as partially in the F2 generation, whereas it was not found in the sterile YBM12-A or the maintainer line YBM12-B. In the F2 population, sterility and fertility segregated at a 3:1 ratio based on the CRF-SCAR marker. A 130 bp fragment was produced in the YBM12-A, F1, and F2 populations, suggesting that these lines contained sterile cytoplasm. A 140 bp fragment present in the YBM12-B and C-line indicated that these lines contained normal cytoplasm. In addition, we identified some morphological characters distinguishing sterile and fertile buds and flowers that may be linked to the sterility gene. If more restorer lines are identified, CMS expressing the YBM trait can be used in hybrid seed production.
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Affiliation(s)
- G S Sun
- Zhenjiang Institute of Agricultural Sciences in Hilly Area of Jiangsu Province, Jurong, Jiangsu, China
| | - Z L Dai
- Zhenjiang Institute of Agricultural Sciences in Hilly Area of Jiangsu Province, Jurong, Jiangsu, China
| | - P W Bosland
- Plant and Environmental Sciences, New Mexico State University, Las Cruces, NM, USA
| | - Q Wang
- College of Horticulture, Jinling Institute of Technology, Nanjing, China
| | - C Q Sun
- Zhenjiang Institute of Agricultural Sciences in Hilly Area of Jiangsu Province, Jurong, Jiangsu, China
| | - Z C Zhang
- Zhenjiang Institute of Agricultural Sciences in Hilly Area of Jiangsu Province, Jurong, Jiangsu, China
| | - Z H Ma
- Zhenjiang Institute of Agricultural Sciences in Hilly Area of Jiangsu Province, Jurong, Jiangsu, China .,Plant and Environmental Sciences, New Mexico State University, Las Cruces, NM, USA
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38
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Guo XD, Wang QL, Mei XS, Li Y, Zhang ZC. [Clinical analysis of benign paroxysmal positional vertigowith multiple canal involvement]. Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2016; 30:1013-1015. [PMID: 29798027 DOI: 10.13201/j.issn.1001-1781.2016.13.002] [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] [Received: 11/01/2015] [Indexed: 06/08/2023]
Abstract
Objective:To compare the clinical features and outcomes between patients with multi-canal benign paroxysmal positional vertigo(BPPV) and single-canal BPPV.Method:Five-hundred and seventy-eight patients with BPPV were retrospectively analyzed and divided into three groups: single-canal BPPV(526 cases),multi-canal BPPV in unilateral ear(11 cases) and multi-canal BPPV in both ears(41 cases).All patients were diagnosed by using the Dix-Hallpike test or roll test and treated with the canalith repositioning procedure.The following factors,including aetiology,age,sex,response to treatment and recurrence,were compared among the three groups.Results:①Greater percentage of idiopathic cases were identified in single-canal(66.2%:48.2%,P<0.01).Traumatic origin and prior history of BPPV were more common in bilateral multi-canal(41.6%:9.2%,P<0.05)and unilateral multi-canal (36.2%:0,P<0.01)respectively.②The recurrence rate was higher in multi-canal BPPV(40.4%:14.3%,P<0.01).Conclusion:Idiopathic BPPV is more common in single-canal BPPV.Potential causes may be identified in multi-canal BPPV.However,over 90% of the patients with single-canal and multi-canal BPPV are cured.
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Affiliation(s)
- X D Guo
- Department of Otolaryngology,the First Hospital,Henan University of TCM,Zhengzhou,450000,China
| | - Q L Wang
- Department of Nursing,Henan Medical College
| | - X S Mei
- Department of Otolaryngology,the First Hospital,Henan University of TCM,Zhengzhou,450000,China
| | - Y Li
- Department of Otolaryngology,the First Hospital,Henan University of TCM,Zhengzhou,450000,China
| | - Z C Zhang
- Department of Otolaryngology,the First Hospital,Henan University of TCM,Zhengzhou,450000,China
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Abstract
Many carpal tunnel syndrome (CTS) patients have symptoms in both the median and ulnar digits more frequently than in the median digits alone. This is possibly because of close anatomical contiguity of the carpal tunnel and Guyon's canal, and the high pressure may also affect the latter, causing indirect compression of ulnar nerve fibers. Thus, we evaluated the functional status of the ulnar nerve in patients with CTS in order to investigate the relationship between ulnar nerve impairment and sensory symptoms of the ulnar territory. Electrophysiological studies were conducted in CTS patients and healthy controls. CTS patients were divided into the mild/moderate group and severe group; they were further divided into the symptomatic and asymptomatic subgroups according to the sensory symptom of the fifth digit region. The findings suggest that CTS patients could have coexisting ulnar nerve wrist entrapments that might exacerbate the severity of CTS. Sensory impairment in the ulnar territory was observed more frequently in the mild/moderate stage of CTS, which is associated with ulnar nerve involvement. These findings also suggest that damage to the ulnar nerve fibers caused by compression forces in Guyon's canal may underlie the ulnar spread of symptoms in CTS.
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Affiliation(s)
- J Zhang
- Tianjin Medical University, Tianjin, China
| | - N Liu
- Department of Neurology, The Third Central Hospital of Tianjin, Tianjin, China
| | - Y W Wang
- Tianjin Medical University, Tianjin, China
| | - Z C Zhang
- Department of Neurology, The Third Central Hospital of Tianjin, Tianjin, China
| | - L N Zheng
- Department of Neurology, The Third Central Hospital of Tianjin, Tianjin, China
| | - J Zhu
- Department of Neurology, The Third Central Hospital of Tianjin, Tianjin, China
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Wang ZW, Zhang W, Dong W, Li BS, Mu DB, Huang W, Zhang J, Li HS, Zhang ZC, Lin HQ, Yi Y. Pathological analysis of extracapsular extension of metastatic lymph node and its potential impact on nodal clinical target volume in the radiotherapy of esophageal squamous cell carcinoma. Neoplasma 2014; 61:324-30. [PMID: 24824935 DOI: 10.4149/neo_2014_042] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
There is no consensus regarding the clinical target volume (CTV) margins which surround the gross tumor volume of metastatic lymph nodes (LN) in radiotherapy of esophageal squamous cell carcinoma (ESCC). This study retrospectively assessed the distance of extracapsular extension (ECE) of metastatic LN in thoracic ESCC and defined nodal CTV margins. Histological sections of metastatic LNs from 217 patients with thoracic ESCC were re-examined. The incidence and maximal distance of ECE of metastatic LNs were assessed. The relationships between ECE and clinicopathologic features were also investigated. The ECE was found in 37.3% of patients (81/217) and 23.1% of metastatic LN (159/689), and the incidences had a significant relationship with N stage and LN size. The median distance of ECE was 1.0 mm (range, 0.2-9.7 mm). The distance of ECE showed a positive correlation with LN size (Spearman's correlation coefficient = 0.419; p<0.001). The ECE distances of LN with <10 mm diameter were significantly smaller than LN with 10-30 mm diameter (p<0.001). The 95th percentiles of ECE distances for these two groups were 3 mm and 5 mm, respectively. For pathologic LN <10 mm in diameter, a 3-mm CTV margin appears to be adequate to encompass 95% of the microscopic ECE, and for LN 10-30 mm, a 5-mm CTV margin is recommended.
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41
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Kuang X, Xing DL, Zhang ZC, Song HJ, Wang YY, Fang S, Yuan ZQ, Ye J, Lin F, Wang XG, Hao ZQ. [Species composition and community structure of a spruce-fir forest and a larch forest on the northern slope of Changbai Mountains, Northeast China]. Ying Yong Sheng Tai Xue Bao 2014; 25:2149-2157. [PMID: 25509062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Spruce-fir forest is the best protected forest vegetation, while larch forest is intrazonal vegetation on the northern slope of Changbai Mountains. To further understand their species composition and community structure, we established a 4 hm2 forest permanent plot in each of these two forests in 2010. All free-standing plant species with DBH (diameter at breast height) ≥ 1 cm were mapped, tagged, and identified to species. The results showed that there were 9257 stems belonging to 8640 genotype individuals, 22 species, 6 genera and 12 families in the spruce-fir forest plot, while 4060 stems belonging to 3696 genotype individuals, 22 species, 8 genera and 16 families in the larch forest plot. Species composition in the two plots was very similar. Most of the species belonged to the Changbai Mountains plant flora. The analysis of species' importance values showed that there were dominant species in both communities. The spruce-fir forest was dominated by Abies nephrolepis and Larix olgensis, whose importance values accounted for 38.7% and 23.9% of the sum of importance values over all species in the plot, respectively. The larch forest was dominated solely by L. olgensis, whose importance value accounted for 61.9% of the sum of importance values over all species in the plot. Both forests were in good condition of regeneration and showed a reversed 'J' type in tree size distributions, at community level. However, different species showed different shapes in size distribution in the two forests. A. nephrolepis showed a reversed 'J' type size distribution in the spruce-fir forest, while L. olgensis with DBH ≥ 10 cm showed a hump-shaped distribution in the larch forest. Spatial distribution patterns of the main species changed differently with size class and spatial scales. Common species had different spatial distribution patterns in the two plots.
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Yin HD, Gilbert ER, Chen SY, Wang Y, Zhang ZC, Zhao XL, Zhang Y, Zhu Q. Effect of hybridization on carcass traits and meat quality of erlang mountainous chickens. Asian-Australas J Anim Sci 2014; 26:1504-10. [PMID: 25049734 PMCID: PMC4093072 DOI: 10.5713/ajas.2013.13097] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 02/10/2013] [Revised: 06/14/2013] [Accepted: 06/04/2013] [Indexed: 11/27/2022]
Abstract
Native chickens hold a significant share of the market in China. In response to the huge demand from the market, the productivity of Chinese native chickens needs to be improved. Cross breeding is an effective method to increase productivity, although it might affect meat quality. In this study, two pure lines (SD02 and SD03) of Erlang mountainous chickens were hybridized with a yellow feather and faster growing line (SD01). The effect of hybridization on carcass and meat quality (physiochemical and textural traits) was measured in the F1 population at d 91 of age. The hybrids exhibited higher body weight and dressed weight, and amount of semi-eviscerated, eviscerated, breast muscle and abdominal fat (p<0.05). Abdominal fat yield also increased (p<0.05) compared to the offspring of the two pure-lines. Meanwhile, there was no significant difference in meat quality traits except for the myofiber diameter and density and the shear force of the breast muscle. Overall, the offspring of cross-lines were similar to pure lines in meat color, pH value, inosinic acid, crude protein, crude fat, dry matter, moisture content and amino acid composition in the breast muscle. These results suggest that productivity can be improved via cross-breeding while maintaining meat quality of the Erlang mountainous chicken.
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Affiliation(s)
- H D Yin
- College of Animal Science and Technology, Sichuan Agricultural University, Ya'an, Sichuan, 625014, China
| | - E R Gilbert
- College of Animal Science and Technology, Sichuan Agricultural University, Ya'an, Sichuan, 625014, China
| | - S Y Chen
- College of Animal Science and Technology, Sichuan Agricultural University, Ya'an, Sichuan, 625014, China
| | - Y Wang
- College of Animal Science and Technology, Sichuan Agricultural University, Ya'an, Sichuan, 625014, China
| | - Z C Zhang
- College of Animal Science and Technology, Sichuan Agricultural University, Ya'an, Sichuan, 625014, China
| | - X L Zhao
- College of Animal Science and Technology, Sichuan Agricultural University, Ya'an, Sichuan, 625014, China
| | - Yao Zhang
- College of Animal Science and Technology, Sichuan Agricultural University, Ya'an, Sichuan, 625014, China
| | - Q Zhu
- College of Animal Science and Technology, Sichuan Agricultural University, Ya'an, Sichuan, 625014, China
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Song HJ, Ye J, Shi S, Zhang ZC, Kuang X, Xing DL, Yuan ZQ, Lin F, Wang XG, Hao ZQ. [Woody plant species composition and community structure in residual fragments of broad-leaved Korean pine mixed forests in Changbai Mountains area]. Ying Yong Sheng Tai Xue Bao 2014; 25:1239-1249. [PMID: 25129921] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
The broad-leaved Korean pine mixed forest represents the typical vegetation type of the eastern mountain area in Northeast China. However, due to the interference of human activities, the natural broad-leaved Korean pine forest only distributes in some residual fragments with unequal areas in Changbai Mountains and Small Hinggan Mountains. To compare and analyze the similarities and differences of broad-leaved Korean pine mixed forests in the different areas, we established six forest plots following the field protocol of the 50 hm2 forest plot in Panama (Barro Colorado Island, BCI) in 2012 in Changbai Mountain National Nature Reserve in Jilin Province and the eastern mountain area in Liaoning Province. All free-standing plant species with DBH (diameter at breast height) > or = 1 cm were mapped, tagged and identified to species. The results showed that there were 69 woody species in the six plots, comprising 42 genera and24 families. Aceraceae was the most species-rich family in all six plots. Most species belonged to the plant type of North Temperate Zone, with a minor subtropical plant species component. The statistics of species abundance, basal area, mean DBH, and importance value showed that there were obviously dominant species in each community. The DBH distribution of all individuals showed a reversed "J" type. However, the percentage of individuals in small size-class and large size-class varied in the six communities, which indicated that these communities were at different successional stages. Ranked by the importance value, the DBH distribution of the top three species in the six plots showed four distribution types: reversed "J" distribution, reversed "L" distribution, unimodal distribution, and partial peak distribution. Spatial distribution patterns of the main species in the six plots changed differently with species and size-class, and the distribution patterns of the same species varied in the different plots.
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Zhang ZC, Hao ZQ, Ye J, Lin F, Yuan ZQ, Xing DL, Shi S, Wang XG. [Short-term death dynamics of trees in natural secondary poplar-birch forest in Changbai Mountains of Northeast China]. Ying Yong Sheng Tai Xue Bao 2013; 24:303-310. [PMID: 23705371] [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: 06/02/2023]
Abstract
Taking the 5 hm2 sampling plot in the natural secondary poplar-birch forest in Changbai Mountains as test object, and based on the two census data in 2005 and 2010, an analysis was made on the main tree species composition and quantity, size class distribution of dead individuals, and regeneration characteristics of the main tree species in different habitat types of the plot in 2005-2010. In the five years, the species number of the individuals with DBH> or = 1 cm increased from 46 to 47, among which, 3 species were newly appeared, and 2 species were disappeared. The number of the individuals changed from 16509 to 15027, among which, 2150 individuals died, accounting for 13% of the whole individuals in 2005, and 668 individuals were newly increased. The basal area of the trees increased from 28.79 m2.m-2 to 30.55 m2.m-2, with that of 41 species increased while that of 6 species decreased. The decrease of the basal area of Betula platyphylla and Populus davidiana accounted for 72.3% of the total decrease. Small individuals had higher mortality, as compared with large ones, and the mortality of the individuals with DBH<5 cm occupied 65% of the total. B. platyphylla and P. davidiana contributed most in the dead individuals with large DBH. No difference was observed in the tree mortality among different habitat types, but the mortality of the individuals with different size classes showed greater variation.
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Etchin J, Sun Q, Kentsis A, Farmer A, Zhang ZC, Sanda T, Mansour MR, Barcelo C, McCauley D, Kauffman M, Shacham S, Christie AL, Kung AL, Rodig SJ, Chook YM, Look AT. Antileukemic activity of nuclear export inhibitors that spare normal hematopoietic cells. Leukemia 2013; 27:66-74. [PMID: 22847027 PMCID: PMC3542631 DOI: 10.1038/leu.2012.219] [Citation(s) in RCA: 152] [Impact Index Per Article: 13.8] [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: 06/15/2012] [Revised: 07/12/2012] [Accepted: 07/12/2012] [Indexed: 11/29/2022]
Abstract
Drugs that target the chief mediator of nuclear export, chromosome region maintenance 1 protein (CRM1) have potential as therapeutics for leukemia, but existing CRM1 inhibitors show variable potencies and a broad range of cytotoxic effects. Here, we report the structural analysis and antileukemic activity of a new generation of small-molecule inhibitors of CRM1. Designated selective inhibitors of nuclear export (SINE), these compounds were developed using molecular modeling to screen a small virtual library of compounds against the nuclear export signal (NES) groove of CRM1. The 2.2-Å crystal structure of the CRM1-Ran-RanBP1 complex bound to KPT-251, a representative molecule of this class of inhibitors, shows that the drug occupies part of the groove in CRM1 that is usually occupied by the NES, but penetrates much deeper into the groove and blocks CRM1-directed protein export. SINE inhibitors exhibit potent antileukemic activity, inducing apoptosis at nanomolar concentrations in a panel of 14 human acute myeloid leukemia (AML) cell lines representing different molecular subtypes of the disease. When administered orally to immunodeficient mice engrafted with human AML cells, KPT-251 had potent antileukemic activity with negligible toxicity to normal hematopoietic cells. Thus, KPT-SINE CRM1 antagonists represent a novel class of drugs that warrant further testing in AML patients.
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MESH Headings
- Active Transport, Cell Nucleus/drug effects
- Animals
- Antineoplastic Agents/chemistry
- Antineoplastic Agents/pharmacology
- Apoptosis
- Blotting, Western
- Cell Cycle
- Cell Nucleus/metabolism
- Cell Proliferation
- Cells, Cultured
- Crystallization
- Crystallography, X-Ray
- Female
- Hematopoietic Stem Cells
- Humans
- Interleukin Receptor Common gamma Subunit/physiology
- Karyopherins/chemistry
- Karyopherins/metabolism
- Leukemia, Myeloid, Acute/drug therapy
- Leukemia, Myeloid, Acute/metabolism
- Leukemia, Myeloid, Acute/pathology
- Mice
- Mice, Inbred NOD
- Mice, SCID
- Nuclear Export Signals
- Nuclear Proteins/chemistry
- Nuclear Proteins/metabolism
- Protein Binding
- Receptors, Cytoplasmic and Nuclear/chemistry
- Receptors, Cytoplasmic and Nuclear/metabolism
- Small Molecule Libraries
- Xenograft Model Antitumor Assays
- ran GTP-Binding Protein/chemistry
- ran GTP-Binding Protein/metabolism
- Exportin 1 Protein
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Affiliation(s)
- J Etchin
- Department of Pediatric Oncology, Dana-Farber Cancer Institute, Division of Hematology/Oncology, Children's Hospital Boston, Harvard Medical School, Boston, MA, USA
| | - Q Sun
- Department of Pharmacology, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - A Kentsis
- Department of Pediatric Oncology, Dana-Farber Cancer Institute, Division of Hematology/Oncology, Children's Hospital Boston, Harvard Medical School, Boston, MA, USA
| | - A Farmer
- Department of Pharmacology, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Z C Zhang
- Department of Pharmacology, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - T Sanda
- Department of Pediatric Oncology, Dana-Farber Cancer Institute, Division of Hematology/Oncology, Children's Hospital Boston, Harvard Medical School, Boston, MA, USA
| | - M R Mansour
- Department of Pediatric Oncology, Dana-Farber Cancer Institute, Division of Hematology/Oncology, Children's Hospital Boston, Harvard Medical School, Boston, MA, USA
| | - C Barcelo
- Department of Pediatric Oncology, Dana-Farber Cancer Institute, Division of Hematology/Oncology, Children's Hospital Boston, Harvard Medical School, Boston, MA, USA
| | - D McCauley
- Karyopharm Therapeutics, Natick, MA, USA
| | - M Kauffman
- Karyopharm Therapeutics, Natick, MA, USA
| | - S Shacham
- Karyopharm Therapeutics, Natick, MA, USA
| | - A L Christie
- Department of Pediatric Oncology, Dana-Farber Cancer Institute, Division of Hematology/Oncology, Children's Hospital Boston, Harvard Medical School, Boston, MA, USA
| | - A L Kung
- Department of Pediatric Oncology, Dana-Farber Cancer Institute, Division of Hematology/Oncology, Children's Hospital Boston, Harvard Medical School, Boston, MA, USA
| | - S J Rodig
- Department of Pathology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Y M Chook
- Department of Pharmacology, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - A T Look
- Department of Pediatric Oncology, Dana-Farber Cancer Institute, Division of Hematology/Oncology, Children's Hospital Boston, Harvard Medical School, Boston, MA, USA
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46
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Zhu PF, Zhang ZC, Chen L, Li RZ, Li JJ, Wang X, Cao JM, Sheng ZM, Zhang J. Ultrashort electron pulses as a four-dimensional diagnosis of plasma dynamics. Rev Sci Instrum 2010; 81:103505. [PMID: 21034089 DOI: 10.1063/1.3491994] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
We report an ultrafast electron imaging system for real-time examination of ultrafast plasma dynamics in four dimensions. It consists of a femtosecond pulsed electron gun and a two-dimensional single electron detector. The device has an unprecedented capability of acquiring a high-quality shadowgraph image with a single ultrashort electron pulse, thus permitting the measurement of irreversible processes using a single-shot scheme. In a prototype experiment of laser-induced plasma of a metal target under moderate pump intensity, we demonstrated its unique capability of acquiring high-quality shadowgraph images on a micron scale with a-few-picosecond time resolution.
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Affiliation(s)
- P F Zhu
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
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47
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Zhang ZC, Lian B, Huang DM, Cui FJ. Compare activities on regulating lipid-metabolism and reducing oxidative stress of diabetic rats of Tremella aurantialba broth's extract (TBE) with its mycelia polysaccharides (TMP). J Food Sci 2009; 74:H15-21. [PMID: 19200097 DOI: 10.1111/j.1750-3841.2008.00989.x] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Abnormal lipid-metabolism and elevated oxidative stress are the familiar complications of diabetic mellitus. Regulated lipid-metabolism and decreased oxidative stress have become the key indices to cure diabetic complications. The activities of broth extract (TBE) and mycelia polysaccharides (TMP) of Tremella aurantialba, which is one of the best-known multipurpose medicinal fungi in China, were studied using alloxan-induced diabetic rats. TBE contains saponins, while TMP contains polysaccharides. Both TBE and TMP could reduce the blood glucose levels of diabetic rats; TBE had stronger abilities to reduce the levels of total cholesterol and total triglyceride in serum, those of malondialdehyde, and enhance the activities of superoxide dismutase and glutathione reductase in different tissues of diabetic rats (P < 0.01). TBE had slightly stronger abilities to enhance the total antioxidant capability, catalase, and glutathione peroxidase in different tissues of diabetic rats, but no significant difference was found between TBE and TMP groups. All these results indicated that TBE was more capable of regulating lipid-metabolism and decreasing oxidative stress.
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Affiliation(s)
- Z C Zhang
- Inst. of Geochemistry, Chinese Academy of Sciences, Guiyang, P.R. China
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48
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Li ZY, Zhang ZC, Zhang L, Leng L. Stereo and enantioselective degradation of beta-Cypermethrin and beta-Cyfluthrin in soil. Bull Environ Contam Toxicol 2008; 80:335-339. [PMID: 18311530 DOI: 10.1007/s00128-008-9368-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2007] [Accepted: 01/25/2008] [Indexed: 05/26/2023]
Abstract
beta-Cypermethrin (beta-CP) and beta-Cyfluthrin (beta-CF) are two important pyrethroid insecticides and both consist of two enantiomeric pairs (diastereomers), i.e. four enantiomers. In this study, the stereo and enantioselective degradation of beta-CP and beta-CF in a Tianjin alkaline soil was studied in details by a combination of achiral and chiral HPLC. The results showed that for the two pyrethroids, the transdiastereomer was degraded faster than the corresponding cis-diastereomer. beta-CP and beta-CF were found to be configurationally unstable in this soil, since isomerization between diastereomers was observed during the degradation process. Further enantioselective analysis showed that significant enantioselectivity occurred during the 30 days incubation time. The enantiomeric ratio (ER) values of cis- and transdiastereomers changed from initial approximately 1.00 to final 0.79 and 0.55 for beta-CP, and to 0.64 and 0.48 for beta-CF, respectively. At last, it was found that beta-CF was degraded at relatively faster degradation rate and higher enantioselectivity than beta-CP. Findings from this study may be used to better understand the chiral profiles of beta-CP and beta-CF as well as relevant pyrethroid analogues in environment.
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Affiliation(s)
- Z Y Li
- College of Science, Hebei University of Science and Technology, Shijiazhuang, 050018, People's Republic of China.
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49
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Li ZY, Zhang ZC, Zhang L, Leng L. Enantioselective degradation and chiral stability of phenthoate in soil. Bull Environ Contam Toxicol 2007; 79:153-7. [PMID: 17510729 DOI: 10.1007/s00128-007-9099-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2006] [Accepted: 03/15/2007] [Indexed: 05/15/2023]
Affiliation(s)
- Z Y Li
- College of Science, Hebei University of Science and Technology, Shijiazhuang 050018, People's Republic of China.
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50
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Zhu J, Kong YY, Liu J, Zhang ZC, Wang Y, Li GD. Secretory Expression of Different C-terminal Truncated HCV E1 Proteins in Mammalian Cells and Characterization of the Expressed Products. Sheng Wu Hua Xue Yu Sheng Wu Wu Li Xue Bao (Shanghai) 2002; 33:634-640. [PMID: 12035054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 02/25/2023]
Abstract
Three fragments of the HCV envelope 1 (E1) with different C-terminal truncation at aa310, aa325, aa340 were cloned into the mammalian expression vector pSecTagB. An epitope in the hepatitis B surface antigen, preS1(21--47), were genetically engineered onto the N-terminus of the recombinant protein and used as an affinity tag for detection and purification. The resulting pSec-preS1-E1t310, pSec-preS1-E1t325 and pSec-preS1-E1t340 were transiently expressed in the HeLa cells and the antigenicity, secretory efficiency and glycosylation type of the recombinant E1 proteins were compared. All of the three recombinant proteins could be detected by both preS1 monoclonal antibody and E1 polyclonal antiserum. The expression products were secreted and highly mannose-type glycosylated, with S1E1t325 being secreted, indicating the influence of the hydrophobic regions on the secretion of the E1 protein. Three CHO cell lines expressing the proteins, S1E1t310, S1E1t325 and S1E1t340, were established and the CHO/pSecS1E1t325 was chosen for further study. The secreted S1E1t325 could be enriched from cell culture medium by the preS1 antibody-coupled Sepharose. The glycosylation analysis indicated the lack of complex glycogen even after the E1 was secreted via Golgi complexes. The established stable cell lines and anti-preS1 affinity method could be utilized to enrich and purify the HCV E1 expressed in mammalian cells, and may be used for further characterization of this protein.
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Affiliation(s)
- J Zhu
- Institute of Biochemistry and Cell Biology, Shanghai Institute for Biological Sciences, the Chinese Academy of Sciences, Shanghai 200031, China.
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