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Li HY, Wang YY, Liu H, Liu HX, Jiang LY, Han YC, Zhou WY, Mao T, Fang WT. [The ninth edition of TNM staging for lung cancer: precise staging for precise diagnosis and treatment]. Zhonghua Wai Ke Za Zhi 2024; 62:537-542. [PMID: 38682624 DOI: 10.3760/cma.j.cn112139-20231210-00262] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Subscribe] [Scholar Register] [Indexed: 05/01/2024]
Abstract
The ninth edition of TNM staging for lung cancer has been announced at the 2023 World Lung Cancer Congress and implemented from January 1, 2024. Te focus of the ninth TNM staging change is dividing N2 into N2a and N2b, as well as M1c into M1c1 and M1c2. Although the T staging has not changed, it has played an important role in verifying the eighth edition of the T staging. The subdivision of stage N2 has led some patients with ⅢA of the eighth edition to experience ascending or descending stages, which will more accurately help to assess the condition and prognosis of patients with mediastinal lymph node metastasis, as well as the design of related clinical studies. Modifying the M1c staging will help define oligometastasis and explore new treatment models in the future. The ninth edition of the TNM staging system provides a more detailed division of different tumor loads, but there is no clear explanation for the staging of lung cancer after neoadjuvant therapy. Further data analysis is needed, and it is expected to be answered in the tenth edition of TNM staging.
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Affiliation(s)
- H Y Li
- Department of Thoracic Surgery, Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200030, China
| | - Y Y Wang
- Department of Thoracic Surgery, Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200030, China
| | - H Liu
- Department of Radiotherapy, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
| | - H X Liu
- Department of Thoracic Surgery, Liaoning Provincial Cancer Hospital, Shenyang 110801, China
| | - L Y Jiang
- Department of Pulmonary Medicine, Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200030, China
| | - Y C Han
- Department of Pathology, Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200030, China
| | - W Y Zhou
- Department of Thoracic Surgery, Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200030, China
| | - T Mao
- Department of Thoracic Surgery, Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200030, China
| | - W T Fang
- Department of Thoracic Surgery, Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200030, China
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Zhang YP, Jiang LY, An HY, Feng Y. Accidental placement of the CVC tip into pleura space via the left internal jugular vein: A case report. Asian J Surg 2024; 47:1242-1243. [PMID: 38071092 DOI: 10.1016/j.asjsur.2023.11.049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Revised: 11/04/2023] [Accepted: 11/10/2023] [Indexed: 02/08/2024] Open
Affiliation(s)
- Y P Zhang
- Department of Anesthesiology, People's Hospital, Peking University, Beijing, China
| | - L Y Jiang
- Department of Anesthesiology, People's Hospital, Peking University, Beijing, China
| | - H Y An
- Department of Anesthesiology, People's Hospital, Peking University, Beijing, China
| | - Y Feng
- Department of Anesthesiology, People's Hospital, Peking University, Beijing, China.
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Lu GM, Jiang LY, Huang DL, Rong YX, Li YH, Wei LX, Ning Y, Huang SF, Mo S, Meng FH, Li HM. Advanced Platelet-Rich Fibrin Extract Treatment Promotes the Proliferation and Differentiation of Human Adipose-Derived Mesenchymal Stem Cells through Activation of Tryptophan Metabolism. Curr Stem Cell Res Ther 2023; 18:127-142. [PMID: 34872484 DOI: 10.2174/1574888x16666211206150934] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2021] [Revised: 09/25/2021] [Accepted: 11/08/2021] [Indexed: 11/22/2022]
Abstract
BACKGROUND Advanced platelet-rich fibrin extract (APRFE) contains a high concentration of various cytokines that are helpful for improving stem cells repair function. OBJECTIVE However, the underlying mechanism of APRFE improving stem cell repairing is not clear. METHODS We produced APRFE by centrifuging fresh peripheral blood samples and isolated and identified human adipose-derived mesenchymal stem cells (ADMSCs). The abundance of cytokines contained in APRFE was detected by the Enzyme-linked immunosorbent assay (ELISA). The ADMSCs treated with or without APRFE were collected for transcriptome sequencing. RESULTS Based on the sequencing data, the expression profiles were contracted. The differentially expressed genes and lncRNA (DEGs and DElncRNAs) were obtained using for the differential expression analysis. The lncRNA-miRNA-mRNA network was constructed based on the miRNet database. The further enrichment analysis results showed that the biological functions were mainly related to proliferation, differentiation, and cell-cell function. To explore the role of APRFE, the protein-protein interaction network was constructed among the cytokines included in APRFE and DEGs. Furthermore, we constructed the global regulatory network based on the RNAInter and TRRUST database. The pathways in the global regulatory network were considered as the core pathways. We found that the DEGs in the core pathways were associated with stemness scores. CONCLUSION In summary, we predicted that APRFE activated three pathways (tryptophan metabolism, mTOR signaling pathway, and adipocytokine signaling) to promote the proliferation and differentiation of ADMSCs. The finding may be helpful for guiding the application of ADMSCs in the clinic.
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Affiliation(s)
- Guan-Ming Lu
- Department of Breast and Thyroid Surgery, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, Guangxi, 533000, China
| | - Li-Yuan Jiang
- Department of Orthopaedics, Guiping People's Hospital, Guigping, Guangxi, 537200, China
| | - Dong-Lin Huang
- Research Center of Medical Sciences, The People's Hospital of Guangxi Zhuang Autonomous Region & Guangxi Academy of Medical Sciences, Nanning 530021, China
| | - Yong-Xian Rong
- Department of Burn and Plastic Surgery, Guiping People's Hospital, Guigping, Guangxi, 537200, China
| | - Yang-Hong Li
- Department of Breast and Thyroid Surgery, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, Guangxi, 533000, China
| | - Liu-Xing Wei
- Department of Breast and Thyroid Surgery, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, Guangxi, 533000, China
| | - Yan Ning
- Research Center of Medical Sciences, The People's Hospital of Guangxi Zhuang Autonomous Region & Guangxi Academy of Medical Sciences, Nanning 530021, China
| | - Shan-Fu Huang
- Department of Dermatology, The People's Hospital of Binyang County, Binyang, Guangxi, 530405, China
| | - Steven Mo
- Yuan Dong International Academy of Life Sciences, Nanning, China
| | - Fu-Han Meng
- Department of Rehabilitation Medicine, The People's Hospital of Binyang County, Binyang, Guangxi, 530405, China
| | - Hong-Mian Li
- Research Center of Medical Sciences, The People's Hospital of Guangxi Zhuang Autonomous Region & Guangxi Academy of Medical Sciences, Nanning 530021, China
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Wang P, Chen ZH, Jiang LY, Zhou XQ, Jia CY, Xiao HA. [Screening, functional analysis and clinical validation of differentially expressed genes in diabetic foot ulcers]. Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi 2022; 38:944-951. [PMID: 36299206 DOI: 10.3760/cma.j.cn501225-20220731-00328] [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: 06/16/2023]
Abstract
Objective: To screen the differentially expressed genes (DEGs) in diabetic foot ulcers (DFUs), and to perform functional analysis and clinical validation of them, intending to lay a theoretical foundation for epigenetic therapy of chronic refractory wounds. Methods: An observational study was conducted. The gene expression profile dataset GSE80178 of DFU patients in Gene Expression Omnibus (GEO) was selected, and the DEG between three normal skin tissue samples and six DFU tissue samples in the dataset was analyzed and screened using the GEO2R tool. For the screened DEG, ClusterProfiler, org.Hs.eg.db, GOplot, and ggplot2 in the R language packages were used for Gene Ontology (GO) enrichment analysis of biological processes, molecular functions, and cellular components, and Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analysis, respectively. Protein-protein interaction (PPI) analysis was performed using STRING database to screen key genes in the DEG, and GO enrichment analysis of key genes was performed using Cytohubba plug-in in Cytoscape 3.9.1 software. DFU tissue and normal skin tissue discarded after surgery were collected respectively from 15 DFU patients (7 males and 8 females, aged 55-87 years) and 15 acute wound patients (6 males and 9 females, aged 8-52 years) who were admitted to Xiang'an Hospital of Xiamen University from September 2018 to March 2021. The mRNA and protein expressions of small proline-rich repeat protein 1A (SPRR1A) and late cornified envelope protein 3C (LCE3C) were detected by real-time fluorescent quantitative reverse transcription polymerase chain reaction and immunohistochemistry, respectively. Data were statistically analyzed with independent sample t test. Results: Compared with normal skin tissue, 492 statistically differentially expressed DEGs were screened from DFU tissue of DFU patients (corrected P<0.05 or corrected P<0.01), including 363 up-regulated DEGs and 129 down-regulated DEGs. GO terminology analysis showed that DEGs were significantly enriched in the aspects of skin development, keratinocyte (KC) differentiation, keratinization, epidermal development, and epidermal cell differentiation, etc. (corrected P values all <0.01). KEGG pathway analysis showed that DEGs were significantly enriched in the aspects of tumor-associated microRNA, Ras related protein 1 signaling pathway, and pluripotent stem cell regulatory signaling pathway, etc. (corrected P values all <0.01). PPI analysis showed that endophial protein, SPRR1A, SPRR1B, SPRR2B, SPRR2E, SPRR2F, LCE3C, LCE3E, keratin 16 (all down-regulated DEGs), and filoprotein (up-regulated DEG) were key genes of DEGs screened from DFU tissue of DFU patients, which were significantly enriched in GO terms of keratinization, KC differentiation, epidermal cell differentiation, skin development, epidermis development, and peptide cross-linking, etc. (corrected P values all <0.01). The mRNA expressions of SPRR1A and LCE3C in DFU tissue of DFU patients were 0.588±0.082 and 0.659±0.098, respectively, and the protein expressions were 0.22±0.05 and 0.24±0.04, respectively, which were significantly lower than 1.069±0.025 and 1.053±0.044 (with t values of 20.91 and 13.66, respectively, P values all <0.01) and 0.38±0.04 and 0.45±0.05 (with t values of 9.69 and 12.46, respectively, P values all <0.01) in normal skin tissue of acute wound patients. Conclusions: Compared with normal skin tissue, there is DEG profile in DFU tissue of DFU patients, with DEGs being significantly enriched in the aspects of KC differentiation and keratin function. Key DEGs are related to the biological function of KC, and their low expressions in DFU tissue of DFU patients may impede ulcer healing.
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Affiliation(s)
- P Wang
- Department of Burns and Plastic and Cosmetic Surgery, Xi'an Ninth Hospital, Xi'an 710054, China
| | - Z H Chen
- Department of Burns and Wound Repair, Union Hospital, Fujian Medical University, Fujian Provincial Burn Research Institute, Fujian Burn Medical Center, Fujian Provincial Key Laboratory of Burn and Trauma, Fuzhou 350001, China
| | - L Y Jiang
- Department of Burns and Plastic and Cosmetic Surgery, Xi'an Ninth Hospital, Xi'an 710054, China
| | - X Q Zhou
- Department of Burns and Plastic and Cosmetic Surgery, Xi'an Ninth Hospital, Xi'an 710054, China
| | - C Y Jia
- Department of Burns and Plastic and Wound Repair Surgery, Xiang'an Hospital of Xiamen University, Xiamen 361102, China
| | - H A Xiao
- Department of Burns and Plastic and Cosmetic Surgery, Xi'an Ninth Hospital, Xi'an 710054, China
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Wang XL, Zhou MJ, Ma TY, Jiang LY, Zhao QD, Xu HB, Zhou J, Li LF, Kong L, Chen X. [Prognosis of adenoid cystic carcinoma of head and neck and risk factors for lung metastasis]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2022; 57:963-968. [PMID: 36058663 DOI: 10.3760/cma.j.cn115330-20220508-00256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Objective: To analyze the prognosis and risk factors of lung metastasis of patients with adenoid cystic carcinoma(ACC) of head and neck. Methods: A retrospective study was conducted. The data of 157 patients with ACC of head and neck treated in Beijing Tongren Hospital, Capital Medical University from January 2014 to October 2020 were collected, including 72 males and 85 females, with onset age between 14 and 72 years old. According to whether lung metastasis occurred, the patients were divided into lung metastasis group (88 cases) and non-pulmonary metastasis group (69 cases). Kaplan-Meier method was used to calculate the overall survival rate and progression-free survival rate using SPSS 26.0 software. Log-rank test was used to evaluate statistically relevant clinicopathological factors. Cox proportional risk model was used in multivariate analysis for the factors affecting the lung metastasis-free survival using R Studio 1.2.5042. Results: The 3-year and 5-year overall survival rates were 91.5% and 85.2%, respectively. The 3-year and 5-year progression-free survival rates were 57.7% and 34.3%, respectively. Univariate analysis showed that primary site, histological grade, high-grade transformation, Ki-67, T stage, and lymph node status were the risk factors for lung metastasis (χ2=11.78, 10.41, 4.06, 4.71, 5.37, 16.20, respectively, all P<0.05). Multivariate analysis showed independent risk factors for lung metastasis, including submandibular gland and sublingual gland (HR=3.53, 95%CI: 1.19-10.46, P<0.05), T3-4 stage (HR=3.09, 95%CI: 1.54-6.23, P<0.05), and Grade Ⅱ-Ⅲ grade (HR=2.47, 95%CI: 1.26-4.86,P<0.05). Conclusion: Distant metastasis, mainly pulmonary metastasis, affects the long-term prognosis of patients with ACC significantly. Primary site, T stage and histopathological grade can be used as the predictors for the risk of lung metastasis.
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Affiliation(s)
- X L Wang
- Department of Otolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Key Laboratory of Otolaryngology Head and Neck Surgery (Capital Medical University), Ministry of Education, Beijing 100730, China
| | - M J Zhou
- Department of Otolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Key Laboratory of Otolaryngology Head and Neck Surgery (Capital Medical University), Ministry of Education, Beijing 100730, China
| | - T Y Ma
- Department of Otolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Key Laboratory of Otolaryngology Head and Neck Surgery (Capital Medical University), Ministry of Education, Beijing 100730, China
| | - L Y Jiang
- Department of Otolaryngology, Beijing University of Chinese Medicine Third Affiliated Hospital, Beijing 100029, China
| | - Q D Zhao
- Department of Otolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Key Laboratory of Otolaryngology Head and Neck Surgery (Capital Medical University), Ministry of Education, Beijing 100730, China
| | - H B Xu
- Department of Otolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Key Laboratory of Otolaryngology Head and Neck Surgery (Capital Medical University), Ministry of Education, Beijing 100730, China
| | - J Zhou
- Department of Otolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Key Laboratory of Otolaryngology Head and Neck Surgery (Capital Medical University), Ministry of Education, Beijing 100730, China
| | - L F Li
- Department of Otolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Key Laboratory of Otolaryngology Head and Neck Surgery (Capital Medical University), Ministry of Education, Beijing 100730, China
| | - L Kong
- Department of Biochemistry and Molecular Biology, School of Basic Medicine, Capital Medical University, Beijing 100069, China
| | - Xiaohong Chen
- Department of Otolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Key Laboratory of Otolaryngology Head and Neck Surgery (Capital Medical University), Ministry of Education, Beijing 100730, China
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Chen XW, Jiang LY, Chen Y, Guo LF, Zhu XH. Analysis of online antenatal education class use via a mobile terminal app during the COVID-19 pandemic. BMC Pregnancy Childbirth 2022; 22:412. [PMID: 35578202 PMCID: PMC9109660 DOI: 10.1186/s12884-022-04745-5] [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] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Accepted: 05/09/2022] [Indexed: 11/10/2022] Open
Abstract
OBJECTIVE To understand the use of online antenatal education classes accessed via the Mother and Child Health Handbook app during the COVID-19 pandemic in order to provide a basis and suggestions for optimizing Internet education during pregnancy under public health emergencies. METHODS We compared and analyzed the use of online antenatal education classes via the Mother and Child Health Handbook app in Hangzhou in 2019 and 2020 (during the COVID-19 pandemic). RESULTS Between January 1, 2019, and December 31, 2020, a total of 229,794 pregnant women created files and registered for the app, including 124,273 women in 2019 and 105,521 women in 2020. More pregnant women participated in online antenatal education learning (n = 36,379/34.5% vs. 29,226/23.5%, p = 0.000) in 2020 than in 2019. The proportion of pregnant women in the 18-34-year-old group who participated in online learning was higher than that in the advanced age group, and the difference was statistically significant (2019: 24.3% vs. 18.8%, p = 0.000) (2020: 35.7% vs. 27.4%, p = 0.000). More pregnant women accessed online antenatal education during early pregnancy (n = 13,463/37.0% vs. 9088/31.1%, p = 0.000) in 2020 than in 2019. Similar percentages of pregnant women participated in online antenatal education during mid-pregnancy (n = 15,426/52.8% vs. 19,269/53.0%, p = 0.639) in 2019 and 2020. Fewer pregnant women accessed online antenatal education during late pregnancy (n = 10,246/28.2% vs. 9476/32.4%, p = 0.000) in 2020 than in 2019. Fewer pregnant women choose to take 'Puerperal Health' courses in 2020 than in 2019 (early pregnancy: 36.20% vs. 42.79%, p = 0.000; mid-pregnancy: 41.65% vs. 48.19%, p = 0.000; late pregnancy: 55.31% vs. 58.41%, p = 0.000). Fewer pregnant women choose to take 'Psychological Adjustment' courses in 2020 than in 2019 (early pregnancy: 21.59% vs. 29.60%, p = 0.000; mid-pregnancy: 26.20% vs. 40.50%, p = 0.000; late pregnancy: 12.79% vs. 42.53%, p = 0.000). More pregnant women choose to study 'Nutrition and Exercise' in 2020 than in 2019 (early pregnancy: 44.48% vs. 25.95%, p = 0.000; mid-pregnancy: 47.77% vs. 40.75%, p = 0.000; late pregnancy: 55.94% vs. 42.99%, p = 0.000). "Pregnancy Care and Fetal Development" was the most selected course by pregnant women in early pregnancy (2019: 67.50%; 2020: 71.39%) and middle pregnancy (2019: 67.01%; 2020: 82.05%), and the proportion in 2020 was higher than it was in 2019. "Baby care" was the most selected course by pregnant women in late pregnancy, and the proportion in 2020 was higher than it was in 2019 (78.31% vs. 72.85%). CONCLUSION During the COVID-19 pandemic, online antenatal education was well-used by pregnant women. More women participated in the online antenatal education modules during the COVID-19 pandemic than during 2019.The proportion of choosing different courses for pregnant women before and after the COVID-19 epidemic varied, and the learning course needs of pregnant women in different trimesters were different.
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Affiliation(s)
- Xiao-Wen Chen
- Department of Obstetrics and Gynecology, Hangzhou Women's Hospital (Hangzhou Maternity and Child Health Care Hospital), No. 369, Kun Peng Road, Hangzhou, 310003, Zhejiang, China
| | - Li-Yuan Jiang
- Department of Obstetrics and Gynecology, Hangzhou Women's Hospital (Hangzhou Maternity and Child Health Care Hospital), No. 369, Kun Peng Road, Hangzhou, 310003, Zhejiang, China
| | - Ya Chen
- Department of Obstetrics and Gynecology, Hangzhou Women's Hospital (Hangzhou Maternity and Child Health Care Hospital), No. 369, Kun Peng Road, Hangzhou, 310003, Zhejiang, China
| | - Li-Fang Guo
- Department of Obstetrics and Gynecology, Hangzhou Women's Hospital (Hangzhou Maternity and Child Health Care Hospital), No. 369, Kun Peng Road, Hangzhou, 310003, Zhejiang, China
| | - Xu-Hong Zhu
- Department of Obstetrics and Gynecology, Hangzhou Women's Hospital (Hangzhou Maternity and Child Health Care Hospital), No. 369, Kun Peng Road, Hangzhou, 310003, Zhejiang, China.
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Jiang LY, Liu Y, Su WZ, Cao YM, Liu WH, Di B, Yang ZC. [Analysis on epidemiological characteristics of dengue fever and E gene evolution of dengue virus in Guangzhou, 2020]. Zhonghua Liu Xing Bing Xue Za Zhi 2022; 43:716-721. [PMID: 35589578 DOI: 10.3760/cma.j.cn112338-20210930-00763] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Objective: To assess the incidence of dengue fever and E gene evolution of dengue virus in Guangzhou in 2020 and understand the local epidemiological characteristics of dengue fever and spreading of dengue virus. Methods: The information of dengue fever cases in Guangzhou in 2020 was collected from Notifiable Infectious Disease System of Chinese Center for Disease Control and Prevention Information System. Serum samples from the cases were detected by real-time PCR. The E gene was sequenced and analyzed. Maximum likelihood phylogenetic trees were constructed using software MEGA 5.05. The statistical analysis was conducted using software SPSS 20.0. Results: A total of 33 dengue fever cases were reported in Guangzhou in 2020, including 31 (93.94%) imported cases and 2 (6.06%) local cases. Compared with the data during 2016 to 2019, the number of cases, overall incidence and local incidence all decreased with statistically significant differences (all P<0.05). The imported cases from Southeast Asia constituted 90.32% (28/31) of imported cases. The E gene sequences and the phylogenetic trees of imported and local cases demonstrated close relationship with the virus sequences from Southeast Asian, and they were less homologous with the sequences of dengue virus isolated in Guangzhou in previous years. Conclusions: The incidence of dengue in Guangzhou in 2020 was significantly affected by the imported cases, especially those from Southeast Asian countries. The study result demonstrated that dengue fever was not endemic in Guangzhou and it was caused by imported ones.
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Affiliation(s)
- L Y Jiang
- Department of Virology and Immunology, Guangzhou Center for Disease Control and Prevention, Guangzhou 510440, China
| | - Y Liu
- Department of Virology and Immunology, Guangzhou Center for Disease Control and Prevention, Guangzhou 510440, China
| | - W Z Su
- Department of Virology and Immunology, Guangzhou Center for Disease Control and Prevention, Guangzhou 510440, China
| | - Y M Cao
- Department of Virology and Immunology, Guangzhou Center for Disease Control and Prevention, Guangzhou 510440, China
| | - W H Liu
- Department of Virology and Immunology, Guangzhou Center for Disease Control and Prevention, Guangzhou 510440, China
| | - B Di
- Department of Virology and Immunology, Guangzhou Center for Disease Control and Prevention, Guangzhou 510440, China
| | - Z C Yang
- Department of Virology and Immunology, Guangzhou Center for Disease Control and Prevention, Guangzhou 510440, China
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Jiang LY, Liu Y, Su WZ, Luo L, Cao YM, Liu WH, Di B, Zhang ZB. [Spatial autocorrelation of dengue cases and molecular biological characteristics of envelope gene of dengue virus in Guangzhou, 2019]. Zhonghua Liu Xing Bing Xue Za Zhi 2021; 42:878-885. [PMID: 34814482 DOI: 10.3760/cma.j.cn112338-20201015-01238] [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: 06/13/2023]
Abstract
Objective: Analyze epidemiological situation of dengue fever,and survey impacts of four serotypes dengue viruses in Guangzhou, 2019. Methods: Information of patients was collected in Notifiable Infectious Disease Report System (NIDRS). Spatial autocorrelation of dengue cases was evaluated using ArcGIS version 10.2. Serum samples were tested by real-time PCR. Virus strains were isolated from positive sera. Then E gene was sequenced. Phylogenetic trees were including PhyMLsoftwarev 3.1. Results: A total of 1 655 dengue cases, consisted of 1 382 local cases and 273 imported cases, was confirmed in 2019. The incidence was 11.10 per 100 000 dengue cases were autocorrelated in Guangzhou. There were 18 high-high clusters. Most of the imported dengue cases were imported from Southeast Asian countries (86.08%,235/273) and African countries (2.56%,7/273). Of 749 serum samples detected by real-time PCR, the positive rate was 93.06% (697/749). Four hundred and sixty-four dengue virus strains had been isolated in 2019. Compared with data from the genotype tree of the former years, no genotype shift was discovered. Serotype 1 was still predominant. Serotype 2 was the significant strain in Baiyun district and Liwan district. Conclusions: Dengue fever was spreading all over Guangzhou in 2019. The suburban areas, which played a more critical role in causing the spread and outbreak of dengue fever, should be given more prominence. Inspection at ports should be enforced to prevent importing cases from African countries and Southeast Asian countries. The risk of serotype 2 cannot be overlooked. Four serotypes dengue viruses prevailed simultaneously in Guangzhou, which warns us to take precaution of severe dengue outbreaks.
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Affiliation(s)
- L Y Jiang
- Guangzhou Center for Disease Control and Prevention, Guangzhou 510440, China
| | - Y Liu
- Guangzhou Center for Disease Control and Prevention, Guangzhou 510440, China
| | - W Z Su
- Guangzhou Center for Disease Control and Prevention, Guangzhou 510440, China
| | - L Luo
- Guangzhou Center for Disease Control and Prevention, Guangzhou 510440, China
| | - Y M Cao
- Guangzhou Center for Disease Control and Prevention, Guangzhou 510440, China
| | - W H Liu
- Guangzhou Center for Disease Control and Prevention, Guangzhou 510440, China
| | - B Di
- Guangzhou Center for Disease Control and Prevention, Guangzhou 510440, China
| | - Z B Zhang
- Guangzhou Center for Disease Control and Prevention, Guangzhou 510440, China
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Li M, Rong ZJ, Cao Y, Jiang LY, Zhong D, Li CJ, Sheng XL, Hu JZ, Lu HB. Utx Regulates the NF-κB Signaling Pathway of Natural Stem Cells to Modulate Macrophage Migration during Spinal Cord Injury. J Neurotrauma 2020; 38:353-364. [PMID: 32977735 DOI: 10.1089/neu.2020.7075] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Neural stem cells (NSCs) play vital roles in the homeostasis of neurological function. Ubiquitously transcribed tetratricopeptide repeat, X chromosome (UTX) is an important regulator of stem cell phenotypes. In our current study, we aimed to investigate whether the conditional knockout of UTX on neural stem cells alters macrophage assembly in response to spinal cord injury (SCI). Conditional knockout Utx of NSC (Utx-KO) mice was used to generate SCI models by the modified Allen method. We reported that neurological function and scar hyperplasia significantly improved in Utx-KO mice after SCI, accompanied by significantly reduced assembly of macrophages. With a 45-fold pathway array and Western blot, we found that Utx-KO could significantly inhibit NF-κB signaling activation and promote the synthesis and secretion of macrophage migration inhibitory factor (MIF) in NSCs. Administration of the selective NF-κB p65 activator betulinic acid and the selective MIF inhibitor ISO-1 confirmed that the activation of NF-κB p65 phosphorylation or inhibition of MIF could eliminate the benefits of Utx-KO in SCI, such as inhibition of macrophage aggregation and reduction in scar proliferation. This study confirmed that UTX in NSCs could alter macrophage migration and improve neurological function recovery after SCI in mice.
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Affiliation(s)
- Miao Li
- Department of Spine Surgery, Xiangya Hospital, Central South University, Changsha, People's Republic of China.,Xiangya Hospital, Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Changsha, People's Republic of China
| | - Zi-Jie Rong
- Department of Spine Surgery, Xiangya Hospital, Central South University, Changsha, People's Republic of China.,Xiangya Hospital, Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Changsha, People's Republic of China
| | - Yong Cao
- Department of Spine Surgery, Xiangya Hospital, Central South University, Changsha, People's Republic of China.,Xiangya Hospital, Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Changsha, People's Republic of China
| | - Li-Yuan Jiang
- Department of Spine Surgery, Xiangya Hospital, Central South University, Changsha, People's Republic of China.,Xiangya Hospital, Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Changsha, People's Republic of China
| | - Dong Zhong
- Department of Spine Surgery, Xiangya Hospital, Central South University, Changsha, People's Republic of China.,Xiangya Hospital, Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Changsha, People's Republic of China
| | - Cheng-Jun Li
- Department of Spine Surgery, Xiangya Hospital, Central South University, Changsha, People's Republic of China.,Xiangya Hospital, Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Changsha, People's Republic of China
| | - Xiao-Long Sheng
- Department of Spine Surgery, Xiangya Hospital, Central South University, Changsha, People's Republic of China.,Xiangya Hospital, Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Changsha, People's Republic of China
| | - Jian-Zhong Hu
- Department of Spine Surgery, Xiangya Hospital, Central South University, Changsha, People's Republic of China.,Xiangya Hospital, Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Changsha, People's Republic of China
| | - Hong-Bin Lu
- Xiangya Hospital, Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Changsha, People's Republic of China.,Department of Sports Medicine, Xiangya Hospital, Central South University, Changsha, People's Republic of China
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10
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Wang LY, Li ZK, Wang LB, Liu C, Sun XH, Feng GH, Wang JQ, Li YF, Qiao LY, Nie H, Jiang LY, Sun H, Xie YL, Ma SN, Wan HF, Lu FL, Li W, Zhou Q. Overcoming Intrinsic H3K27me3 Imprinting Barriers Improves Post-implantation Development after Somatic Cell Nuclear Transfer. Cell Stem Cell 2020; 27:315-325.e5. [PMID: 32559418 DOI: 10.1016/j.stem.2020.05.014] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Revised: 01/13/2020] [Accepted: 05/27/2020] [Indexed: 12/27/2022]
Abstract
Successful cloning by somatic cell nuclear transfer (SCNT) requires overcoming significant epigenetic barriers. Genomic imprinting is not generally regarded as such a barrier, although H3K27me3-dependent imprinting is differentially distributed in E6.5 epiblast and extraembryonic tissues. Here we report significant enhancement of SCNT efficiency by deriving somatic donor cells carrying simultaneous monoallelic deletion of four H3K27me3-imprinted genes from haploid mouse embryonic stem cells. Quadruple monoallelic deletion of Sfmbt2, Jade1, Gab1, and Smoc1 normalized H3K27me3-imprinted expression patterns and increased fibroblast cloning efficiency to 14% compared with a 0% birth rate from wild-type fibroblasts while preventing the placental and body overgrowth defects frequently observed in cloned animals. Sfmbt2 deletion was the most effective of the four individual gene deletions in improving SCNT. These results show that lack of H3K27me3 imprinting in somatic cells is an epigenetic barrier that impedes post-implantation development of SCNT embryos and can be overcome by monoallelic imprinting gene deletions in donor cells.
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Affiliation(s)
- Le-Yun Wang
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing 100101, China
| | - Zhi-Kun Li
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing 100101, China
| | - Li-Bin Wang
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing 100101, China
| | - Chao Liu
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; University of the Chinese Academy of Sciences, Beijing 100049, China; Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing 100101, China
| | - Xue-Han Sun
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; University of the Chinese Academy of Sciences, Beijing 100049, China; Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing 100101, China
| | - Gui-Hai Feng
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing 100101, China
| | - Jia-Qiang Wang
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; College of Life Science, Northeast Agricultural University, Harbin 150030, China
| | - Yu-Fei Li
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing 100101, China
| | - Lian-Yong Qiao
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China
| | - Hu Nie
- University of the Chinese Academy of Sciences, Beijing 100049, China; State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China
| | - Li-Yuan Jiang
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; College of Life Science, Northeast Agricultural University, Harbin 150030, China
| | - Hao Sun
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; University of the Chinese Academy of Sciences, Beijing 100049, China; Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing 100101, China
| | - Ya-Li Xie
- University of the Chinese Academy of Sciences, Beijing 100049, China; State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China
| | - Si-Nan Ma
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; College of Life Science, Northeast Agricultural University, Harbin 150030, China
| | - Hai-Feng Wan
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing 100101, China
| | - Fa-Long Lu
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China.
| | - Wei Li
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing 100101, China.
| | - Qi Zhou
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing 100101, China.
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11
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Jiang LY. [Arginine vasopressin-aquaporin2 signal pathway and endolymphatic hydrops]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2020; 55:426-431. [PMID: 32306648 DOI: 10.3760/cma.j.cn115330-20191219-00767] [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] [Grants] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Affiliation(s)
- L Y Jiang
- Department of Acupuncture and Rehabilitation, Guangxing Hospital Affiliated to Zhejiang Chinese Medical University, Hangzhou 310007, China
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12
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Huang HY, Zhang LZ, Zhang QX, Peng L, Xu B, Jiang GF, Zhong J, Fu L, Jiang LY, Song YQ, He HS, Wu XJ, Tan YS. [Analysis of mental state of allergic rhinitis patients in Chengdu city by symptom check list 90 (SCL-90) scale]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2019; 54:576-583. [PMID: 31434370 DOI: 10.3760/cma.j.issn.1673-0860.2019.08.004] [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: 02/05/2023]
Abstract
Objective: To analyse the mental state of patients with allergic rhinitis (AR) in Chengdu. Methods: One thousand five hundred and thirty-six AR patients from Sichuan Provincial Integrated Traditional Chinese and Western Medicine Hospital, West China Hospital of Sichuan University, Affiliated Hospital of Chengdu University of Traditional Chinese Medicine, Sichuan People's Hospital, Sichuan Second Hospital of Traditional Chinese Medicine were selected from July 2013 to January 2018. Eight hundred and twenty-seven patients were screened into study group by inclusion and exclusion standards. The symptom check list 90 (SCL-90) was used to group and score the mental state of these patients according to nine classification criteria: gender, BMI, age, marital status, monthly salary, disease duration, living environment, education level and working environment. Then, the scores were compared within groups. Inter-group comparison was made between the study group and the Chinese norm, and the positive factors for psychological disorders were extracted. Four symptoms in the study group, i.e. nasal itching, sneezing, clear discharge and nasal congestion, were scored on the visual analogue scale (VAS). SPSS 19.0 software was used to carry out statistical analysis. Partial correlation analysis was performed between the positive factors and the symptom scores by multiple regression statistical method. Results: The total score of SCL-90 in the study group was 2.64±0.25, which was accorded with mild to moderate mental health impairment. There were 124 (15.0%) without mental health damage, 176 (21.3%) with mild damage, 474 (57.3%) with mild to moderate damage, 41 (5.0%) with moderate to severe damage and 12 (1.4%) with severe damage. The in-group comparison showed that the top three categories of different items were the living environment, gender and working environment. The scores of somatization, obsessive-compulsive symptoms, interpersonal sensitivity, depression, anxiety, psychosis, other (sleep, diet) and total average score of urban residents were higher than that of country residents (3.29±0.61 vs 2.65±0.50, 2.81±0.77 vs 2.05±0.38, 3.10±0.19 vs 2.49±0.67, 3.40±0.84 vs 2.49±0.70, 3.04±0.64 vs 2.33±0.51, 3.02±0.55 vs 2.40±0.77, 3.40±0.41 vs 2.52±0.77, 2.91±0.11 vs 2.29±0.40, Z value was 4.88, 5.25, 4.57, 5.91, 5.09, 4.63, 5.55, -4.55, respectively, all P<0.05). Women scored higher than man for somatization, interpersonal sensitivity, depression and others (2.66±0.51 vs 2.00±0.45, 3.37±0.47 vs 2.63±0.51, 3.44±0.57 vs 2.85±0.52, 3.47±0.36 vs 2.76±0.45, Z value was -5.10, -5.51, -4.86, -5.28, respectively, all P<0.05). The scores of somatization, interpersonal sensitivity, psychosis and other (sleep, diet) were higher in the indoor group than those in the outdoor group (3.49±0.64 vs 2.78±0.46, 3.33±0.30 vs 2.56±0.68, 3.28±0.60 vs 2.67±0.31, 3.50±0.85 vs 2.85±0.37, Z value was 5.31, 5.79, 4.89, 5.00, respectively, all P<0.05). The outdoor group scored higher on obsessive-compulsive symptoms, anxiety and hostility (3.44±0.40 vs 2.83±0.35, 3.40±0.50 vs 2.57±0.93, 3.34±0.88 vs 2.69±0.56, Z value was 4.96, 6.22, 5.08, respectively, all P<0.05). The inter-group comparison found that depression, anxiety, psychosis and other (sleep, diet) could be partially correlated with VAS scores as 4 positive factors. The results of partial correlation analysis showed that depression was positively correlated with sneezing and nasal runny discharge, anxiety was positively correlated with nasal itching and nasal obstruction, psychosis was positively correlated with nasal itching and sneezing, and other (sleep, diet) was positively correlated with nasal runny discharge and nasal obstruction. Conclusion: AR patients have mild to moderate mental health impairments, which are correlated with AR symptoms.
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Affiliation(s)
- H Y Huang
- Chengdu University of Traditional Chinese Medicine, Chengdu 610000, China; Department of Otorhinolaryngology, Sichuan Provincial Integrated Traditional Chinese and Western Medicine Hospital, Chengdu 610000, China
| | - L Z Zhang
- Department of Aesthetic and Plastic Surgery, Affiliated Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu 610000, China
| | - Q X Zhang
- Department of Otorhinolaryngology Head and Neck Surgery, Affiliated Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu 610000, China
| | - L Peng
- Department of Subhealth Center, Sichuan Provincial Integrated Traditional Chinese and Western Medicine Hospital, Chengdu 610000, China
| | - B Xu
- Psychological Counseling Room, Dazhou Central Hospital, Dazhou 635000, China
| | - G F Jiang
- Department of Psychosomatic Medicine, Dazhou Central Hospital, Dazhou 635000, China
| | - J Zhong
- Chengdu University of Traditional Chinese Medicine, Chengdu 610000, China; Department of Otorhinolaryngology Head and Neck Surgery, West China Hospital of Sichuan University, Chengdu 610000, China
| | - L Fu
- Chengdu University of Traditional Chinese Medicine, Chengdu 610000, China; Department of Otorhinolaryngology Head and Neck Surgery, Affiliated Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu 610000, China
| | - L Y Jiang
- Department of Otorhinolaryngology Head and Neck Surgery, Affiliated Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu 610000, China
| | - Y Q Song
- Department of Operation Room, Sichuan Second Hospital of Traditional Chinese Medicine, Chengdu 610000, China
| | - H S He
- Department of Otorhinolaryngology, Sichuan Provincial Integrated Traditional Chinese and Western Medicine Hospital, Chengdu 610000, China
| | - X J Wu
- Department of Otorhinolaryngology, Sichuan Provincial Integrated Traditional Chinese and Western Medicine Hospital, Chengdu 610000, China
| | - Y S Tan
- Department of Otorhinolaryngology Head and Neck Surgery, Sichuan People's Hospital, Chengdu 610000, China
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Hu JZ, Rong ZJ, Li M, Li P, Jiang LY, Luo ZX, Duan CY, Cao Y, Lu HB. Silencing of lncRNA PKIA-AS1 Attenuates Spinal Nerve Ligation-Induced Neuropathic Pain Through Epigenetic Downregulation of CDK6 Expression. Front Cell Neurosci 2019; 13:50. [PMID: 30873006 PMCID: PMC6401634 DOI: 10.3389/fncel.2019.00050] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2018] [Accepted: 02/01/2019] [Indexed: 01/07/2023] Open
Abstract
Neuropathic pain (NP) is among the most intractable comorbidities of spinal cord injury. Dysregulation of non-coding RNAs has also been implicated in the development of neuropathic pain. Here, we identified a novel lncRNA, PKIA-AS1, by using lncRNA array analysis in spinal cord tissue of spinal nerve ligation (SNL) model rats, and investigated the role of PKIA-AS1 in SNL-mediated neuropathic pain. We observed that PKIA-AS1 was significantly upregulated in SNL model rats and that PKIA-AS1 knockdown attenuated neuropathic pain progression. Alternatively, overexpression of PKIA-AS1 was sufficient to induce neuropathic pain-like symptoms in uninjured rats. We also found that PKIA-AS1 mediated SNL-induced neuropathic pain by directly regulating the expression and function of CDK6, which is essential for the initiation and maintenance of neuroinflammation and neuropathic pain. Therefore, our study identifies PKIA-AS1 as a novel therapeutic target for neuroinflammation related neuropathic pain.
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Affiliation(s)
- Jian-Zhong Hu
- Department of Spine Surgery, Xiangya Hospital, Central South University, Changsha, China.,Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Xiangya Hospital, Central South University, Changsha, China
| | - Zi-Jie Rong
- Department of Spine Surgery, Xiangya Hospital, Central South University, Changsha, China.,Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Xiangya Hospital, Central South University, Changsha, China
| | - Miao Li
- Department of Spine Surgery, Xiangya Hospital, Central South University, Changsha, China.,Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Xiangya Hospital, Central South University, Changsha, China
| | - Ping Li
- Department of Spine Surgery, Xiangya Hospital, Central South University, Changsha, China.,Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Xiangya Hospital, Central South University, Changsha, China.,Department of Obstetrics, Xiangya Hospital, Central South University, Changsha, China
| | - Li-Yuan Jiang
- Department of Spine Surgery, Xiangya Hospital, Central South University, Changsha, China.,Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Xiangya Hospital, Central South University, Changsha, China
| | - Zi-Xiang Luo
- Department of Spine Surgery, Xiangya Hospital, Central South University, Changsha, China.,Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Xiangya Hospital, Central South University, Changsha, China
| | - Chun-Yue Duan
- Department of Spine Surgery, Xiangya Hospital, Central South University, Changsha, China.,Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Xiangya Hospital, Central South University, Changsha, China
| | - Yong Cao
- Department of Spine Surgery, Xiangya Hospital, Central South University, Changsha, China.,Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Xiangya Hospital, Central South University, Changsha, China
| | - Hong-Bin Lu
- Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Xiangya Hospital, Central South University, Changsha, China.,Department of Sports Medicine, Xiangya Hospital, Central South University, Changsha, China
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14
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Yao LY, Xiang ML, Ye ZH, Qian Y, Lu Q, Yan LJ, Jiang LY, Zhong HB. [Intervention study of compassion fatigue of oncology nurses in Balint group activities]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2018; 35:910-913. [PMID: 29495153 DOI: 10.3760/cma.j.issn.1001-9391.2017.12.007] [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 explore the effectiveness of Balint group on compassion fatigue among oncology nurses. Methods: From January to December 2016, 35 oncology nurses from one general hospital were enrolled. 18 cases were allocated in the observation group and 17 cases in the control group by computer randomization. Nurses in the observation group were received a total of 8 times Balint Group activities, with 2 times a month and 1.5 hours each time, which is aiming to discuss difficult cases encountered in the clinic to help nurses have a deeper experience and a better understanding of the emotions and behaviors, fantasies and needs between nurse-patient interaction. Nurses in the control group without intervention. All the Participants were requested to complete the survey of the Professional Quality of Life (ProQOL) , the Jefferson Scale of Empathy-Health Professionals (JSE-HP) , and the General Health Questionnaire (GHQ) at pre and post intervention. Results: Before intervention, two group of nurses in age, working years, marriage, and education were not statistically significant (P>0.05). There was no difference in the scores of empathy, compassion satisfaction, secondary traumatic stress, and General health (P>0.05). After intervention, the scores of JSE-HP and its three dimensions of perspective taking, emotional care, and trans-positional consideration in the observation group had significantly higher than the control group (P<0.05). The level of compassion satisfaction in the observation group was higher, and the general health status was lower (P<0.05). There was no statistically difference in the level of burnout and secondary traumatic stress between two groups (P>0.05) . Conclusion: Balint group has a positive role in promoting nurses'empathetic skills, compassion satisfaction and mental health.
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Affiliation(s)
- L Y Yao
- Sir Run Run Shaw Hospital, College of Medicine, Zhejiang University, Hangzhou 310016, China
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15
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Jiang LY, Bao SP. [Clinical analysis of endoscopic sinus surgery on 12 HIV-positive patients with sinusitis]. Lin Chung Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2018; 32:1495-1498. [PMID: 30550196 DOI: 10.13201/j.issn.1001-1781.2018.19.013] [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] [Received: 08/16/2018] [Indexed: 11/12/2022]
Abstract
Objective: To explore the feasibility of endoscopic sinus surgery on HIVinfected patients. Method: Twelve positive patients suffering from sinusitis undergoing endoscopic treatment were retrospectively analyzed. And the clinical characteristics,treatment and therapeutic effects were summarized. Result: After follow-up up for 1-6 years, 8 cases were cured, 1 case was improved, and 3 cases recurred three months after operation.The effective rate was 75%.The quality of life of patients was improved. Conclusion: For HIV-positive sinusitis patients with surgical indications,endoscopic surgery should be considered if general examinations are normal and full perioperative protections can be taken, and the therapeutic efficacy is definite. CD4+ T cell count should not be regarded as an absolute contraindication of surgery.
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Affiliation(s)
- L Y Jiang
- Department of Otorhinolaryngology Head Neck Surgery, Bejing You'an Hospital, Capital Medical University, Beijing,100069, China
| | - S P Bao
- Department of Otorhinolaryngology Head Neck Surgery, Bejing You'an Hospital, Capital Medical University, Beijing,100069, China
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Wang CX, Cui GS, Liu X, Xu K, Wang M, Zhang XX, Jiang LY, Li A, Yang Y, Lai WY, Sun BF, Jiang GB, Wang HL, Tong WM, Li W, Wang XJ, Yang YG, Zhou Q. METTL3-mediated m6A modification is required for cerebellar development. PLoS Biol 2018; 16:e2004880. [PMID: 29879109 PMCID: PMC6021109 DOI: 10.1371/journal.pbio.2004880] [Citation(s) in RCA: 189] [Impact Index Per Article: 31.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2017] [Revised: 06/27/2018] [Accepted: 05/15/2018] [Indexed: 01/26/2023] Open
Abstract
N6-methyladenosine (m6A) RNA methylation is the most abundant modification on mRNAs and plays important roles in various biological processes. The formation of m6A is catalyzed by a methyltransferase complex including methyltransferase-like 3 (METTL3) as a key factor. However, the in vivo functions of METTL3 and m6A modification in mammalian development remain unclear. Here, we show that specific inactivation of Mettl3 in mouse nervous system causes severe developmental defects in the brain. Mettl3 conditional knockout (cKO) mice manifest cerebellar hypoplasia caused by drastically enhanced apoptosis of newborn cerebellar granule cells (CGCs) in the external granular layer (EGL). METTL3 depletion–induced loss of m6A modification causes extended RNA half-lives and aberrant splicing events, consequently leading to dysregulation of transcriptome-wide gene expression and premature CGC death. Our findings reveal a critical role of METTL3-mediated m6A in regulating the development of mammalian cerebellum. N6-methyladenosine (m6A) is an abundant modification in mRNA molecules and regulates mRNA metabolism and various biological processes, such as cell fate control, early embryonic development, sex determination, and diseases like diabetes and obesity. Adenosine methylation is regulated by a large methyltransferase complex and by demethylases, as well as by other binding proteins. METTL3 is one of the core subunits of the methyltransferase complex catalyzing m6A formation. However, the role of METTL3-mediated m6A in mammalian brain development remains unclear mainly because of the lack of specific spatiotemporal knockout animal models, as conventional METTL3 knockout in mice leads to early embryonic death. In this study, we specifically inactivated METTL3 in the developing mouse brain. We detected a drastic depletion of m6A accompanied by severe developmental defects in the cerebellum of these mice. Further analysis established that METTL3-mediated m6A participates in cerebellar development by controlling mRNA stability of genes related to cerebellar development and apoptosis and by regulating alternative splicing of pre-mRNAs of synapse-associated genes.
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Affiliation(s)
- Chen-Xin Wang
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Guan-Shen Cui
- Key Laboratory of Genomic and Precision Medicine, Collaborative Innovation Center of Genetics and Development, Beijing Institute of Genomics, Chinese Academy of Sciences, Beijing, China
- Sino-Danish College, University of Chinese Academy of Sciences, Beijing, China
| | - Xiuying Liu
- Key Laboratory of Genetic Network Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China
| | - Kai Xu
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Meng Wang
- Key Laboratory of Genetic Network Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China
| | - Xin-Xin Zhang
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
| | - Li-Yuan Jiang
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
| | - Ang Li
- University of Chinese Academy of Sciences, Beijing, China
- Key Laboratory of Genomic and Precision Medicine, Collaborative Innovation Center of Genetics and Development, Beijing Institute of Genomics, Chinese Academy of Sciences, Beijing, China
| | - Ying Yang
- Key Laboratory of Genomic and Precision Medicine, Collaborative Innovation Center of Genetics and Development, Beijing Institute of Genomics, Chinese Academy of Sciences, Beijing, China
| | - Wei-Yi Lai
- University of Chinese Academy of Sciences, Beijing, China
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, China
| | - Bao-Fa Sun
- University of Chinese Academy of Sciences, Beijing, China
- Key Laboratory of Genomic and Precision Medicine, Collaborative Innovation Center of Genetics and Development, Beijing Institute of Genomics, Chinese Academy of Sciences, Beijing, China
- Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing, China
| | - Gui-Bin Jiang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, China
| | - Hai-Lin Wang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, China
| | - Wei-Min Tong
- Department of Pathology, Center for Experimental Animal Research, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Wei Li
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
- University of Chinese Academy of Sciences, Beijing, China
- Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing, China
| | - Xiu-Jie Wang
- University of Chinese Academy of Sciences, Beijing, China
- Key Laboratory of Genetic Network Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China
- Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing, China
- * E-mail: (XJW); (YGY); (QZ)
| | - Yun-Gui Yang
- University of Chinese Academy of Sciences, Beijing, China
- Key Laboratory of Genomic and Precision Medicine, Collaborative Innovation Center of Genetics and Development, Beijing Institute of Genomics, Chinese Academy of Sciences, Beijing, China
- Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing, China
- * E-mail: (XJW); (YGY); (QZ)
| | - Qi Zhou
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
- University of Chinese Academy of Sciences, Beijing, China
- Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing, China
- * E-mail: (XJW); (YGY); (QZ)
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17
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Liu YG, Bao SP, Jiao N, Meng K, Zhang W, Shao S, Jia JJ, Jiang LY, Yuan JJ, Zan F. [Study on differential diagnosis of upper digestive tract bleeding and epistaxis by placing Foley tube]. Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2017; 31:1369-1371. [PMID: 29798235 DOI: 10.13201/j.issn.1001-1781.2017.17.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [Subscribe] [Scholar Register] [Received: 05/19/2017] [Indexed: 06/08/2023]
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Liu Y, Jiang LY, Luo L, Cao YM, Jing QL, Yang ZC. [Phylogenetic analysis of envelope gene of dengue virus serotype 2 in Guangzhou, 2001-2015]. Zhonghua Liu Xing Bing Xue Za Zhi 2017; 38:90-95. [PMID: 28100385 DOI: 10.3760/cma.j.issn.0254-6450.2017.01.018] [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 investigate the molecular characteristics of dengue virus serotype 2 (DENV2) in Guangzhou during 2001-2015, and analyze the E gene of the strains isolated, the phylogenetic tree and molecular clock were constructed to know about the evolution of the strains. Methods: The serum samples of the patients were detected by real time PCR, and positive samples were used to isolate dengue virus by using C6/36 cells. The E gene of the isolated strains were sequenced. The phylogenetic tree was constructed by using software Mega 4.0, and the molecular clock was drawn by using software BEASTv1.8.2. Results: Twenty-six dengue virus strains were isolated between 2001 and 2015. They were all clustered into 2 genotypes, i.e. cosmopolitan genotype and Asian genotype Ⅰ. The strains isolated in Guangzhou shared high homology with Southeast Asian strains. The cosmopolitan genotype was divided into 2 sub-genotype at about 46 and 35 years ago. The substitution rate of dengue virus serotype 2 in Guangzhou was 7.1 × 10(-4) per year per site. Conclusions: There were close relationship between the Guangzhou strains and Southeast Asian strains. Guangzhou was at high risk of imported dengue fever, outbreak of dengue hemorrhagic fever and dengue shock syndrome. There might be two ways of introduction of cosmopolitan genotype. The substitution rate of the strains in Guangzhou was similar to that in the neighbor countries.
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Affiliation(s)
- Y Liu
- Disinfection Department, Guangzhou Center for Disease Control and Prevention, Guangzhou 510440, China
| | - L Y Jiang
- Virus Department, Guangzhou Center for Disease Control and Prevention, Guangzhou 510440, China
| | - L Luo
- Disinfection Department, Guangzhou Center for Disease Control and Prevention, Guangzhou 510440, China
| | - Y M Cao
- Virus Department, Guangzhou Center for Disease Control and Prevention, Guangzhou 510440, China
| | - Q L Jing
- Epidemiology Department, Guangzhou Center for Disease Control and Prevention, Guangzhou 510440, China
| | - Z C Yang
- Epidemiology Department, Guangzhou Center for Disease Control and Prevention, Guangzhou 510440, China
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Zheng XH, Jiang LY, Zhao LT, Zhang QY, Ding L. Simultaneous quantitation of folic acid and 5-methyltetrahydrofolic acid in human plasma by HPLC-MS/MS and its application to a pharmacokinetic study. J Pharm Anal 2015; 5:269-275. [PMID: 29403940 PMCID: PMC5762215 DOI: 10.1016/j.jpha.2015.05.004] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2015] [Revised: 05/12/2015] [Accepted: 05/19/2015] [Indexed: 11/26/2022] Open
Abstract
A sensitive method based on high-performance liquid chromatography–tandem mass spectrometry (LC–MS/MS) has been developed for the simultaneous determination of folic acid (FA) and its active metabolite, 5-methyltetrahydrofolic acid (5-M-THF), in human plasma. The analytes were extracted from plasma with methanol solution containing 10 mg/mL of 2-mercaptoethanol and 0.025% (v/v) ammonium hydroxide. FA and 5-M-THF were more stable after the addition of 2-mercaptoethanol and ammonium hydroxide in the sample preparation procedures of this study than they were in the previously published methods. Chromatographic separation was performed on a Hedera ODS-2 column using a gradient elution system of acetonitrile and 1 mM ammonium acetate buffer solution containing 0.6% formic acid as mobile phase. LC–MS/MS was carried out with an ESI ion-source and operated in the multiple reaction monitoring (MRM) mode. The assay was linear over the concentration ranges of 0.249–19.9 ng/mL for FA, and 5.05–50.5 ng/mL for 5-M-THF. The developed LC–MS/MS method offers increased sensitivity for quantification of FA and 5-M-THF in human plasma and was applicable to a pharmacokinetic study of FA and 5-M-THF.
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Affiliation(s)
- Xiao-Hong Zheng
- Department of Pharmaceutical Analysis, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing 210009, China
| | - Li-Yuan Jiang
- Medical Faculty, Quzhou College of Technology, 18 Jiangyuan road, Quzhou 324000, China
| | - Lan-Ting Zhao
- Department of Pharmaceutical Analysis, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing 210009, China
| | - Quan-Ying Zhang
- Department of Pharmacy, The Second Affiliated Hospital of Soochow University, Suzhou 215004, China
| | - Li Ding
- Department of Pharmaceutical Analysis, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing 210009, China
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Hu GB, Jiang DW, Li JY, Rao Y, Jiang LY. Crystal structure of (5'S,8'S)-3-(2,5-di-methyl-phen-yl)-8-meth-oxy-3-nitro-1-aza-spiro-[4.5]decane-2,4-dione. Acta Crystallogr E Crystallogr Commun 2015; 71:o238-o239. [PMID: 26029433 PMCID: PMC4438798 DOI: 10.1107/s2056989015004715] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2014] [Accepted: 03/07/2015] [Indexed: 06/04/2023]
Abstract
The title compound, C18H22N2O5, was synthesized by nitrification of its enol precursor. The pyrrolidine ring plane adopts a twisted conformation about the C-C bond linking the spiro centre and the C=O group remote from the N atom. It makes dihedral angles of 71.69 (9) and 88.92 (9)°, respectively, with the benzene ring plane and the plane defined by the four C atoms that form the seat of the of the cyclo-hexane chair. At the spiro centre, the NH group is axial and the C=O group is equatorial with respect to the cyclo-hexane ring. In the crystal, inversion dimers linked by pairs of N-H⋯O hydrogen bonds generate R 2 (2)(8) loops. The dimers are linked by C-H⋯O inter-actions, generating a three-dimensional network.
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Affiliation(s)
- Gao-Bo Hu
- Medical College, Quzhou College of Technology, Quzhou 324000, People’s Republic of China
| | - Da-Wei Jiang
- Medical College, Quzhou College of Technology, Quzhou 324000, People’s Republic of China
| | - Jiang-Yan Li
- Medical College, Quzhou College of Technology, Quzhou 324000, People’s Republic of China
| | - Yan Rao
- Medical College, Quzhou College of Technology, Quzhou 324000, People’s Republic of China
| | - Li-Yuan Jiang
- Medical College, Quzhou College of Technology, Quzhou 324000, People’s Republic of China
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21
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Gan JK, Jiang LY, Kong LN, Zhang XQ, Luo QB. Analysis of genetic diversity of the heat shock protein 70 gene on the basis of abundant sequence polymorphisms in chicken breeds. Genet Mol Res 2015; 14:1538-45. [PMID: 25867297 DOI: 10.4238/2015.march.6.1] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [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
This study was designed to detect the sequence variation of the chicken heat shock protein 70 (HSP70) gene. A total of 102 individuals from 8 native Chinese breeds together with Dwarf White Chicken and Red Junglefowl were used to detect sequence variations. The coding regions of the chicken HSP70 gene from 102 individuals were cloned and sequenced. Thirty-six variations were identified, which included 34 single nucleotide polymorphisms and 2 indel mutations. Fifty-seven haplotypes were observed, of which, 43 were breed-specific and 14 were shared. There were 7 Red Junglefowl-specific haplotypes, while Haidong and Silkie only had 2 specific haplotypes. Eleven and 3 haplotypes were shared between and within species, respectively. The variation in nucleotide diversity (Pi) and average number of nucleotide differences (K) among species were consistent. The total Pi of HSP70 was 0.0016, and the total K was 4.1998. The Pi value of Red Junglefowl was the highest (0.0018) and K was 4.8000, while the Pi of Silkie was the lowest (0.0010) and K was 2.5000. These results demonstrated that variation in chicken HSP70 was abundant between and within species.
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Affiliation(s)
- J K Gan
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, South China Agricultural University, Guangzhou, China
| | - L Y Jiang
- Key Lab of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, South China Agricultural University, Guangzhou, China
| | - L N Kong
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, South China Agricultural University, Guangzhou, China
| | - X Q Zhang
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, South China Agricultural University, Guangzhou, China
| | - Q B Luo
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, South China Agricultural University, Guangzhou, China
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22
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Luo XM, Ding L, Gu X, Jiang LY, Dong X. [LC-MS/MS assay of methylphenidate: stability and pharmacokinetics in human]. Yao Xue Xue Bao 2014; 49:83-88. [PMID: 24783511] [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 study aims to solve the instability problem of methylphenidate (MPH) in plasma, and establish a LC-MS/MS method for simultaneous determining of MPH in human plasma. The stabilities of MPH in different media were studied, and the degradation characteristics of MPH in these media were also investigated by HPLC and LC-MS/MS. To a 200 microL aliquot of freshly collected plasma sample, 10 microL 2% formic acid was added immediately to prevent the hydrolysis of MPH in human plasma samples. Chromatographic separation was performed on a Sapphire C18 column using the mobile phase of methanol - 5 mmol.L-1 ammonium acetate buffer solution containing 0.1% formic acid (46 : 54). MPH was quantified by tandem mass spectrometry operating in positive electrospray ionization mode with multiple reaction monitoring. The detection used the transitions of protonated molecules at m/z 234.2-->84.1 for MPH and m/z 260.3-->183.1 for propranolol (IS), separately. The intra- and inter-assay precisions were all below 5.0%. The accuracies were all in standard ranges. The linear calibration curve was obtained in the concentration range of 0.035-40 ng.mL-1. The methods fulfilled the demand. The method was used to determine the concentration of MPH in human plasma after a single dose of 36 mg MPH tablet to 6 healthy Chinese volunteers. The method is suitable for the precisely determination of MPH and for pharmacokinetic study of MPH in human plasma.
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Abstract
In this work, the influence of surface effects, including residual surface stress, surface elasticity and surface piezoelectricity, on the vibrational and buckling behaviors of piezoelectric nanobeams is investigated by using the Euler-Bernoulli beam theory. The surface effects are incorporated by applying the surface piezoelectricity model and the generalized Young-Laplace equations. The results demonstrate that surface effects play a significant role in predicting these behaviors. It is found that the influence of the residual surface stress and the surface piezoelectricity on the resonant frequencies and the critical electric potential for buckling is more prominent than the surface elasticity. The nanobeam boundary conditions are also found to influence the surface effects on these parameters. This study also shows that the resonant frequencies can be tuned by adjusting the applied electrical load. The present study is envisaged to provide useful insights for the design and applications of piezoelectric-beam-based nanodevices.
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Affiliation(s)
- Z Yan
- Department of Mechanical and Materials Engineering, The University of Western Ontario, London, ON, Canada
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24
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Shi P, Ma R, Gao HD, Jiang LY, Sun JZ. Lipid-rich carcinoma of the breast: a case report. Acta Chir Belg 2008; 108:115-118. [PMID: 18411586] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Lipid-rich carcinoma is a rare variant and accounts for < or = 2% of all breast cancer diagnoses. We report a case occurring in a 53-year-old female. The patient presented with a painless, right breast mass. Clinical examination and mammography suggested malignancy. Subsequent modified radical mastectomy revealed the diagnosis of lipid-rich carcinoma. The morphological features, differential diagnosis and treatment along with a brief review of the literature are discussed in this article. Lipid-rich carcinoma (L-RC) is a very rare variant of breast carcinomas with an aggressive clinical course and poor prognosis. It presents only 1% to 2% of all breast cases. It is classified as a specific variety of mammary carcinoma because the tumour cells possess abundant vacuolated cytoplasm which is strongly positive when stained for neutral fat. Aboumrad first described it in 1963 as lipid-secreting carcinoma. However, Ramos and Taylor renamed it as lipid-rich breast carcinoma. In China, the first case was reported in 1984. Herein, we report a case of lipid-rich carcinoma occurring in a 53-year-old female patient, and the literature is reviewed.
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Affiliation(s)
- P Shi
- Department of General Surgery, Shandong Provincial Hospital, Shandong Unniversity, Jinan 250021, China
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25
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Rong R, Jiang LY, Sheikh MS, Huang Y. Mitotic kinase Aurora-A phosphorylates RASSF1A and modulates RASSF1A-mediated microtubule interaction and M-phase cell cycle regulation. Oncogene 2007; 26:7700-8. [PMID: 17563743 DOI: 10.1038/sj.onc.1210575] [Citation(s) in RCA: 78] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
RASSF1A (RAS-association domain family 1, isoform A) is a newer tumor suppressor that binds to and stabilizes microtubules as well as induces M-phase cell cycle arrest. Several other proteins that interact with and stabilize microtubules also undergo mitotic phase phosphorylation to regulate microtubule dynamics and M-phase cell cycle progression. Currently, however, there is a paucity of information regarding the phosphorylation status of RASSF1A and its regulation during mitosis. In this study, for the first time, we demonstrate that Aurora-A is a RASSF1A kinase and, to the best of our knowledge, this is also the first study reporting the identification of a kinase for RASSF1A. We show that the mitotic kinase Aurora-A directly interacts with and phosphorylates RASSF1 and that RASSF1A is phosphorylated by Aurora-A during mitosis. These findings therefore link an important oncogenic mitotic kinase to regulate RASSF1A tumor suppressor. Aurora-A appears to phosphorylate RASSF1A at Threonine202 and/or Serine203 that reside within the known microtubule-binding domain of RASSF1A. Substitutions of these residues with glutamic acid at both positions, mimicking constitutive phosphorylation of RASSF1A, disrupt RASSF1A interactions with microtubules and abolish its ability to induce M-phase cell cycle arrest. Our results further demonstrate that Aurora-A overexpression also interferes with RASSF1A-mediated growth suppression. In view of our results, we propose that Aurora-A-mediated phosphorylation of RASSF1A is a novel mechanism that regulates the ability of this tumor suppressor to interact with microtubules and modulate M-phase cell cycle progression.
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Affiliation(s)
- R Rong
- Department of Pharmacology, State University of New York, Upstate Medical University, Syracuse, NY 13210, USA
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Abstract
A pilot-scale biotrickling filter (BTF) packed with polyurethane (PU) foam was installed at one pharmaceutical factory in Zhejiang Province to study the removal of high-concentration H2S from water treatment plant. Experiments were performed at different empty bed residence times (EBRTs), H2S input load, ratio of liquid flow rate to gas inlet rate (L/G) and sulfate concentration in recirculating liquid to examine their effects on the performance of the BTF. The performance of this bioreactor was monitored continuously over a period of 56 days. After the start-up within 8 days, H2S removal efficiency remained between 90% and 100% with inlet concentration fluctuating from 238 to 590 mg m(-3). H2S removal efficiency was consistently greater than 90%, even at a short EBRT of 9 s and inlet H2S load higher than 187 g m(-3) h(-1). Profiles over the height of the reactor indicated that H2S removal took place mostly in the first section of the column. The performance of BTF could be maintained at high and stable levels when L/G was below 0.005 and sulfate concentration down to 28 g l(-1). The results led to the conclusion that BTF is the optimal choice for treating high-concentration H2S.
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Affiliation(s)
- J M Chen
- College of Biological and Environmental Engineering, Zhejiang University of Technology, Hangzhou 310032, China
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Jiang LY, Yang XE, He ZL. Growth response and phytoextraction of copper at different levels in soils by Elsholtzia splendens. Chemosphere 2004; 55:1179-1187. [PMID: 15081758 DOI: 10.1016/j.chemosphere.2004.01.026] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2003] [Revised: 01/23/2004] [Accepted: 01/23/2004] [Indexed: 05/24/2023]
Abstract
Phytoremediation is a promising approach for cleaning up soils contaminated with heavy metals. Information is needed to understand growth response and uptake mechanisms of heavy metals by some plant species with exceptional capability in absorbing and superaccumulating metals from soils. Greenhouse study, field trial, and old mined area survey were conducted to evaluate growth response and Cu phytoextraction of Elsholtzia splendens in contaminated soils, which has been recently identified to be tolerant to high Cu concentration and have great potential in remediating contaminated soils. The results from this study indicate that the plant exhibited high tolerance to Cu toxicity in the soils, and normal growth was attained up to 80 mg kg(-1) available soil Cu (the NH4OAc extractable Cu) or 1000 mg kg(-1) total Cu. Under the field conditions, a biomass yield of 9 ton ha(-1) was recorded at the soil available Cu level of 77 mg kg(-1), as estimated by the NH4OAc extraction method. Concentration-dependent uptake of Cu by the plant occurred mainly at the early growth stage, and at the late stage, there is no difference in shoot Cu concentrations grown at different extractable soil Cu levels. The extractability of Cu from the highly polluted soil is much greater by the roots than that by the shoots. The NH4OAc extractable Cu level in the polluted soil was reduced from 78 to 55 mg kg(-1) in the soil after phytoextraction and removal of Cu by the plant species for one growth season. The depletion of extractable Cu level in the rhizosphere was noted grown in the mined area, even at high Cu levels, the NH4OAc extractable Cu in the rhizosphere was 30% lower than that in the bulk soil. These results indicate that phytoextraction of E. splendens can effectively reduce the plant-available Cu level in the polluted soils.
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Affiliation(s)
- L Y Jiang
- Ministry of Education Key Lab of Environmental Remediation and Ecosystem Health, Department of Natural Resource Science, College of Natural Resource and Environmental Science, Zhejiang University, Huajiachi Campus, Hangzhou 310029, China
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Zhou ZH, Wang JF, Wang YD, Qiu YH, Pan JZ, Xie W, Jiang LY, Klein B, Zhang XG. An agonist anti-human CD40 monoclonal antibody that induces dendritic cell formation and maturation and inhibits proliferation of a myeloma cell line. Hybridoma (Larchmt) 1999; 18:471-8. [PMID: 10626675 DOI: 10.1089/hyb.1999.18.471] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
CD40, a 48-50 KD cell membrane molecule, member of the nerve growth factor receptor and tumor necrosis factor receptor superfamily, is an important costimulatory molecule during the immune response. Anti-CD40 monoclonal antibody (MAb) has been shown earlier to costimulate with IgM or phorbol esters resting B cells to proliferate, differentiate, secrete immunoglobulins, and switch isotype. Here we report on an agonistic mouse anti-human CD40 MAb 5C11. The specificity of this MAb was verified by flow cytometry, Western blotting, and competition with anti-CD40 MAb 89. We studied the effects of MAb 5C11 on a multimyeloma cell line, XG2, that expresses the CD40 antigen strongly and found that this MAb caused the homotypic aggregation of XG2, strongly suppressed XG2 proliferation, and led to its apoptosis after 24 hr of treatment. Interestingly, MAb 5C11 also triggered the generation, proliferation, and maturation of dendritic cells from peripheral blood monocytes, either by itself or in combination with GM-CSF and IL-4.
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Affiliation(s)
- Z H Zhou
- Department of Immunology, Suzhou Medical College, PR China
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