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Su L, Lou Y, Li J, Mao H, Li J, Sun Y, Zhou B, Wu G, Huang C, Zhang Y, Chen K. Influence of storage solution, temperature, assay time and concentration on RT-qPCR nucleic acid detection for SARS-CoV-2 detection of SARS-CoV-2 by the RT-qPCR. Biochem Biophys Res Commun 2024; 707:149726. [PMID: 38493747 DOI: 10.1016/j.bbrc.2024.149726] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2024] [Accepted: 02/25/2024] [Indexed: 03/19/2024]
Abstract
Real-time reverse transcriptase quantitative polymerase chain reaction (RT-qPCR) is an important method for the early diagnosis of coronavirus disease 2019 (COVID-19). This study investigated the effects of storage solution, temperature and detection time on severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) nucleic acid detection by RT-qPCR. Various concentrations of SARS-CoV-2 were added to inactive and non-inactive storage solution and the viral suspensions were stored at various temperatures (room temperature, 4, -20 and -80 °C). Then, at five different detection time points, the Ct values were determined by RT-qPCR. Active and inactive storage solutions and storage temperature have a great impact on the detection of N gene of SARS-CoV-2 at different concentration corridors but have little impact on the ORF gene. The storage time has a greater impact on the N gene and ORF gene at high concentrations but has no effect on the two genes at low concentrations. In conclusion, storage temperature, storage time and storage status (inactivated, non-inactivated) have no effect on the nucleic acid detection of SARS-CoV-2 at the same concentration. For different concentrations of SARS-CoV-2, the detection of N gene is mainly affected.
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Affiliation(s)
- Lingxuan Su
- Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, China
| | - Yihan Lou
- Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, China
| | - Jiaxuan Li
- Key Laboratory of Artificial Organs and Computational Medicine in Zhejiang Province, Shulan International Medical College, Zhejiang Shuren University, Hangzhou, P.R. China
| | - Haiyan Mao
- Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, China
| | - Jianhua Li
- Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, China
| | - Yi Sun
- Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, China
| | - Biaofeng Zhou
- Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, China
| | - Guangshang Wu
- Key Laboratory of Artificial Organs and Computational Medicine in Zhejiang Province, Shulan International Medical College, Zhejiang Shuren University, Hangzhou, P.R. China
| | - Chen Huang
- Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, China.
| | - Yanjun Zhang
- Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, China.
| | - Keda Chen
- Key Laboratory of Artificial Organs and Computational Medicine in Zhejiang Province, Shulan International Medical College, Zhejiang Shuren University, Hangzhou, P.R. China.
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Huang C, Luo L, Mootz M, Shang J, Man P, Su L, Perakis IE, Yao YX, Wu A, Wang J. Extreme terahertz magnon multiplication induced by resonant magnetic pulse pairs. Nat Commun 2024; 15:3214. [PMID: 38615025 PMCID: PMC11016094 DOI: 10.1038/s41467-024-47471-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Accepted: 03/26/2024] [Indexed: 04/15/2024] Open
Abstract
Nonlinear interactions of spin-waves and their quanta, magnons, have emerged as prominent candidates for interference-based technology, ranging from quantum transduction to antiferromagnetic spintronics. Yet magnon multiplication in the terahertz (THz) spectral region represents a major challenge. Intense, resonant magnetic fields from THz pulse-pairs with controllable phases and amplitudes enable high order THz magnon multiplication, distinct from non-resonant nonlinearities such as the high harmonic generation by below-band gap electric fields. Here, we demonstrate exceptionally high-order THz nonlinear magnonics. It manifests as 7th-order spin-wave-mixing and 6th harmonic magnon generation in an antiferromagnetic orthoferrite. We use THz two-dimensional coherent spectroscopy to achieve high-sensitivity detection of nonlinear magnon interactions up to six-magnon quanta in strongly-driven many-magnon correlated states. The high-order magnon multiplication, supported by classical and quantum spin simulations, elucidates the significance of four-fold magnetic anisotropy and Dzyaloshinskii-Moriya symmetry breaking. Moreover, our results shed light on the potential quantum fluctuation properties inherent in nonlinear magnons.
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Affiliation(s)
- C Huang
- Ames National Laboratory, Ames, IA, 50011, USA
- Department of Physics and Astronomy, Iowa State University, Ames, IA, 50011, USA
| | - L Luo
- Ames National Laboratory, Ames, IA, 50011, USA
| | - M Mootz
- Ames National Laboratory, Ames, IA, 50011, USA
| | - J Shang
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 201899, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - P Man
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 201899, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - L Su
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 201899, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - I E Perakis
- Department of Physics, University of Alabama at Birmingham, Birmingham, AL, 35294-1170, USA
| | - Y X Yao
- Ames National Laboratory, Ames, IA, 50011, USA
| | - A Wu
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 201899, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - J Wang
- Ames National Laboratory, Ames, IA, 50011, USA.
- Department of Physics and Astronomy, Iowa State University, Ames, IA, 50011, USA.
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Su L, Huang SM, Xiao JY, Chen ZM. [Research progress on membrane vesicles and immunomodulatory effect of Streptococcus pneumoniae]. Zhonghua Er Ke Za Zhi 2024; 62:282-285. [PMID: 38378294 DOI: 10.3760/cma.j.cn112140-20230818-00114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/22/2024]
Affiliation(s)
- L Su
- Department of Pulmonology, Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou 310052, China
| | - S M Huang
- Department of Pulmonology, Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou 310052, China
| | - J Y Xiao
- Department of Pulmonology, Hangzhou Children's Hospital, Hangzhou 310014, China
| | - Z M Chen
- Department of Pulmonology, Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou 310052, China
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Hu W, Cheng B, Su L, Lv J, Zhu J. Uric acid is negatively associated with cognition in the first- episode of schizophrenia. Encephale 2024; 50:54-58. [PMID: 36907671 DOI: 10.1016/j.encep.2023.01.006] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Revised: 12/14/2022] [Accepted: 01/10/2023] [Indexed: 03/12/2023]
Abstract
BACKGROUND We explored the relationship between levels of serum uric acid (UA) and cognitive impairment in people with schizophrenia to order to better protect and improve cognitive function in such patients. METHODS A uricase method evaluated serum UA levels in 82 individuals with first-episode schizophrenia and in 39 healthy controls. The Brief Psychiatric Rating Scale (BPRS) and the event-related potential P300 were used to assess the patient's psychiatric symptoms and cognitive functioning. The link between serum UA levels, BPRS scores, and P300 was investigated. RESULTS Prior to treatment, serum UA levels and latency N3 in the study group were significantly higher than in the control group, whereas the amplitude P3 was considerably lower. After therapy, the study group's BPRS scores, serum UA levels, latency N3, and amplitude P3 were lower than before treatment. According to correlation analysis, serum UA levels in the pre-treatment study group significantly positively correlated with BPRS score and latency N3 but not amplitude P3. After therapy, serum UA levels were no longer substantially related to the BPRS score or amplitude P3 but strongly and positively correlated with latency N3. CONCLUSIONS First-episode schizophrenia patients have higher serum UA levels than the general population which partly reflects poor cognitive performance. Improving patients' cognitive function may be facilitated by lowering serum UA levels.
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Affiliation(s)
- W Hu
- Department of Psychiatry, The Affiliated Xuzhou Eastern Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China; Key Laboratory of Brain Diseases Bioinformation (Xuzhou Medical University), Xuzhou, Jiangsu, China; The Key Lab of Psychiatry, Xuzhou Medical University, Xuzhou, Jiangsu, China.
| | - B Cheng
- Department of Psychiatry, The Affiliated Xuzhou Eastern Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China; Key Laboratory of Brain Diseases Bioinformation (Xuzhou Medical University), Xuzhou, Jiangsu, China; The Key Lab of Psychiatry, Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - L Su
- Yangzhou Sida Health Consulting Co., LTD, Yangzhou, Jiangsu, China
| | - J Lv
- Department of Psychiatry, The Affiliated Xuzhou Eastern Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - J Zhu
- Department of Psychiatry, The Affiliated Xuzhou Eastern Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China; Key Laboratory of Brain Diseases Bioinformation (Xuzhou Medical University), Xuzhou, Jiangsu, China; The Key Lab of Psychiatry, Xuzhou Medical University, Xuzhou, Jiangsu, China.
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Leung C, Konya L, Su L. Postpandemic immunity debt of influenza in the USA and England: an interrupted time series study. Public Health 2024; 227:239-242. [PMID: 38246119 DOI: 10.1016/j.puhe.2023.12.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Revised: 11/16/2023] [Accepted: 12/05/2023] [Indexed: 01/23/2024]
Abstract
OBJECTIVES The concept of "immunity debt" has gained attention in the public sphere, and some have argued that the recent out-of-season resurgence of respiratory syncytial virus demonstrates the presence of immunity debt. This study investigates the existence of immunity debt in the context of influenza. STUDY DESIGN Interrupted time series analysis. METHODS The positivity rate of influenza in the USA and England was gathered from the Centers for Disease Control and Prevention and the UK Health Security Agency. A time series model with an autoregressive approach was used to model the dynamics of positivity rate. Binary indicator variables were included in the model to account for the impact of non-pharmaceutical interventions (NPIs) and immunity debt. RESULTS The impact of NPIs and immunity debt on the positivity rate of influenza was found to be statistically significant. CONCLUSIONS This present work provides evidence supporting the existence of immunity debt in influenza in both the USA and England in the immediate month following the removal of NPIs such as lockdowns and facemask mandates.
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Affiliation(s)
- C Leung
- Department of Population Health Sciences, University of Leicester, Leicester, UK.
| | - L Konya
- Faculty of Business and Economics, University of Melbourne, Melbourne, Australia
| | - L Su
- MRC Biostatistics Unit, School of Clinical Medicine, University of Cambridge, Cambridge, UK
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Tubero Euzebio Alves V, Bruno M, Mukherjee S, Wang L, Danaher R, Su L, Starr M, Gonzalez O. Sex-Related Effect of Aging in Gingival Gamma-Delta T Cells. J Dent Res 2024; 103:62-70. [PMID: 37968805 PMCID: PMC10985387 DOI: 10.1177/00220345231205210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2023] Open
Abstract
Aging affects the number and function of gamma-delta (γδ) T cells in a tissue-specific manner, modifying the risk for inflammatory disease. These aging-related γδT-cell variations in gingival tissues that could increase the risk for inflammation and periodontal disease remain unknown. Here we sought to identify quantitative and qualitative variations in gingival γδT cells associated with aging that could have an impact in oral immunoinflammatory responses. For this, gingival tissues from young (4 mo) and aged (24 mo) male and female mice were collected and analyzed by flow cytometry. Cell suspensions were stimulated and stained with eFluor450 (cell viability), anti-CD45 (hematopoietic cells), anti-CD3 (lymphocytes), anti-TCRγδ (γδT cells), anti-IL-15rα (cell proliferation), and anti-Notch-3 (senescence marker). Detection of intracellular cytokines IL-17A and interferon γ (IFNγ) was performed. Gingival expression of specific γ- and δ-chains and cytokines was evaluated by quantitative reverse transcription polymerase chain reaction. A significantly higher number of IL-17A-producing γδT cells and IL-17A expression levels were observed in gingival tissues from aged females but not males. Similarly, the number of gingival Notch-3+ γδT cells increased with aging only in females. IL-15rα was not detected in gingival γδT cells. Chains γ1, 2, 4, 5, 6, and 7 as well as δ1, 2, 4, and 6 were detected. Detection levels of all γ chains except γ1 as well as δ1 and δ2 changed with aging in males, females, or both. Interestingly, number of IL-17A-producing conventional T cells similarly increased with aging only in females. Both sexes showed increased IFNγ+ conventional T-cell numbers with aging; however, it reached significance only in females. In conclusion, the number of gingival IL-17A-producing γδT cells and IL-17A expression increase naturally with aging specifically in females. This sexual dimorphism in gingival γδT and conventional Th17 cell numbers and phenotypes suggests distinct aging-related mechanisms of periodontitis in males and females.
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Affiliation(s)
- V. Tubero Euzebio Alves
- Center for Oral Health Research, College of Dentistry, University of Kentucky, Lexington, KY, USA
| | - M.E.C. Bruno
- Department of Surgery, College of Medicine, University of Kentucky, Lexington, KY, USA
| | - S. Mukherjee
- Department of Pharmacology and Nutritional Sciences, College of Medicine, University of Kentucky, Lexington, KY, USA
| | - L. Wang
- Center for Oral Health Research, College of Dentistry, University of Kentucky, Lexington, KY, USA
| | - R.J. Danaher
- Center for Oral Health Research, College of Dentistry, University of Kentucky, Lexington, KY, USA
| | - L. Su
- Department of Statistics, College of Arts and Sciences, University of Kentucky, Lexington, KY, USA
| | - M.E. Starr
- Department of Surgery, College of Medicine, University of Kentucky, Lexington, KY, USA
- Department of Pharmacology and Nutritional Sciences, College of Medicine, University of Kentucky, Lexington, KY, USA
| | - O.A. Gonzalez
- Center for Oral Health Research, College of Dentistry, University of Kentucky, Lexington, KY, USA
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Jiang C, Xu F, Yi D, Jiang B, Wang R, Wu L, Ding H, Qin J, Lee Y, Sang J, Shi X, Su L. Testosterone promotes the migration, invasion and EMT process of papillary thyroid carcinoma by up-regulating Tnnt1. J Endocrinol Invest 2024; 47:149-166. [PMID: 37477865 PMCID: PMC10776714 DOI: 10.1007/s40618-023-02132-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Accepted: 06/06/2023] [Indexed: 07/22/2023]
Abstract
PURPOSE To explore the key genes and molecular pathways in the progression of thyroid papillary carcinoma (PTC) promoted by testosterone using RNA-sequencing technology, and to provide new drug targets for improving the therapeutic effect of PTC. METHODS Orchiectomy (ORX) was carried out to construct ORX mouse models. TPC-1 cells were subcutaneously injected for PTC formation in mice, and the tumor tissues were collected for RNA-seq. The key genes were screened by bioinformatics technology. Tnnt1 expression in PTC cells was knocked down or overexpressed by transfection. Cell counting kit-8 (CCK-8), colony formation assay, scratch assay and transwell assay were adopted, respectively, for the detection of cell proliferation, colony formation, migration and invasion. Besides, quantification real-time polymerase chain reaction (qRT-PCR) and western blot were utilized to determine the mRNA and protein expression levels of genes in tissues or cells. RESULTS Both estradiol and testosterone promoted the growth of PTC xenografts. The key gene Tnnt1 was screened and obtained by bioinformatics technology. Functional analysis revealed that overexpression of Tnnt1 could markedly promote the proliferation, colony formation, migration, invasion, and epithelial-to-mesenchymal transition (EMT) process of PTC cells, as well as could activate p38/JNK pathway. In addition, si-Tnt1 was able to inhibit the cancer-promoting effect of testosterone. CONCLUSION Based on the outcomes of bioinformatics and basic experiments, it is found that testosterone can promote malignant behaviors such as growth, migration, invasion and EMT process of PTC by up-regulating Tnnt1 expression. In addition, the function of testosterone may be achieved by activating p38/JNK signaling pathway.
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Affiliation(s)
- C Jiang
- Division of Thyroid Surgery, Department of General Surgery, Nanjing Drum Tower Hospital, the Affiliated Hospital of Medical School, Nanjing University, Nanjing, 210008, Jiangsu, China
| | - F Xu
- Department of General Surgery, Nanjing Drum Tower Hospital, Clinical College of Nanjing Medical University, Nanjing, 221000, Jiangsu, China
| | - D Yi
- Division of Thyroid Surgery, Department of General Surgery, Nanjing Drum Tower Hospital, the Affiliated Hospital of Medical School, Nanjing University, Nanjing, 210008, Jiangsu, China
| | - B Jiang
- Department of General Surgery, Nanjing Drum Tower Hospital, Clinical College of Nanjing Medical University, Nanjing, 221000, Jiangsu, China
| | - R Wang
- Division of Thyroid Surgery, Department of General Surgery, Nanjing Drum Tower Hospital, the Affiliated Hospital of Medical School, Nanjing University, Nanjing, 210008, Jiangsu, China
| | - L Wu
- Division of Thyroid Surgery, Department of General Surgery, Nanjing Drum Tower Hospital, the Affiliated Hospital of Medical School, Nanjing University, Nanjing, 210008, Jiangsu, China
| | - H Ding
- Department of General Surgery, Nanjing Drum Tower Hospital, Clinical College of Nanjing Medical University, Nanjing, 221000, Jiangsu, China
| | - J Qin
- Department of General Surgery, Nanjing Drum Tower Hospital, Clinical College of Nanjing Medical University, Nanjing, 221000, Jiangsu, China
| | - Y Lee
- Division of Thyroid Surgery, Department of General Surgery, Nanjing Drum Tower Hospital, the Affiliated Hospital of Medical School, Nanjing University, Nanjing, 210008, Jiangsu, China
| | - J Sang
- Department of General Surgery, Nanjing Drum Tower Hospital, Clinical College of Nanjing Medical University, Nanjing, 221000, Jiangsu, China.
| | - X Shi
- Division of Thyroid Surgery, Department of General Surgery, Nanjing Drum Tower Hospital, the Affiliated Hospital of Medical School, Nanjing University, Nanjing, 210008, Jiangsu, China
| | - L Su
- Division of Thyroid Surgery, Department of General Surgery, Nanjing Drum Tower Hospital, the Affiliated Hospital of Medical School, Nanjing University, Nanjing, 210008, Jiangsu, China
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Li J, Mao H, Song W, Chen Y, Feng Y, Li J, Su L, Li X, Shi W, Wu Y, Huang C, Zhang Y, Chen K. Low neutralization of SARS-CoV-2 Omicron BA.5.2.48, BF.7.14, XBB.1 subvariants by homologous or heterologous booster. J Med Virol 2023; 95:e29306. [PMID: 38084772 DOI: 10.1002/jmv.29306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2023] [Revised: 11/11/2023] [Accepted: 11/27/2023] [Indexed: 12/18/2023]
Abstract
The recently mutated severe acute respiratory syndrome coronavirus 2 variant Omicron has very high infectivity and a strong ability to evolve and evade immunity. We collected six sets of sera from uninfected individuals and individuals recovering from breakthrough infections who completed homologous or heterologous booster immunization and assessed their susceptibility against the BA.5.2.48, BF.7.14, XBB.1.5, XBB.1.5.4, and XBB.1.16 subvariants. The results demonstrated that the Omicron variants possess an exceptional potential to evade the immune barriers strengthened by vaccine administration and natural infections in the population, particularly XBB.1.16, and showed that heterologous boosters exhibit higher vaccine efficacy compared with homologous boosters.
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Affiliation(s)
- Jianhua Li
- Key Laboratory of Public Health Detection and Etiological Research of Zhejiang Province, Hangzhou, China
- Department of Microbiology, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, China
| | - Haiyan Mao
- Key Laboratory of Public Health Detection and Etiological Research of Zhejiang Province, Hangzhou, China
- Department of Microbiology, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, China
| | - Wanchen Song
- Department of Microbiology, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, China
- School of Medical Technology and Information Engineering, Zhejiang Chinese Medical University, Hangzhou, China
| | - Yin Chen
- Key Laboratory of Public Health Detection and Etiological Research of Zhejiang Province, Hangzhou, China
- Department of Microbiology, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, China
| | - Yan Feng
- Department of Infectious Diseases, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, China
| | - Jiaxuan Li
- Shulan International Medical College, Zhejiang Shuren University, Hangzhou, China
| | - Lingxuan Su
- Key Laboratory of Public Health Detection and Etiological Research of Zhejiang Province, Hangzhou, China
- Department of Microbiology, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, China
| | - Xiaoyan Li
- Department of Microbiology, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, China
| | - Wen Shi
- Department of Microbiology, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, China
| | - Yutong Wu
- Shulan International Medical College, Zhejiang Shuren University, Hangzhou, China
| | - Chen Huang
- Key Laboratory of Public Health Detection and Etiological Research of Zhejiang Province, Hangzhou, China
- Department of Microbiology, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, China
| | - Yanjun Zhang
- Key Laboratory of Public Health Detection and Etiological Research of Zhejiang Province, Hangzhou, China
- Department of Microbiology, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, China
| | - Keda Chen
- Shulan International Medical College, Zhejiang Shuren University, Hangzhou, China
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Jiang B, Wang C, Qu C, Jiang C, Zhang C, Chen Y, Chen F, Su L, Luo Y. Primary human thyrocytes maintained the function of thyroid hormone production and secretion in vitro. J Endocrinol Invest 2023; 46:2501-2512. [PMID: 37133653 DOI: 10.1007/s40618-023-02103-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Accepted: 04/20/2023] [Indexed: 05/04/2023]
Abstract
PURPOSE Thyroid cell lines are useful tools to study the physiology and pathology of the thyroid, however, they do not produce or secrete hormones in vitro. On the other hand, the detection of endogenous thyroid hormones in primary thyrocytes was often hindered by the dedifferentiation of thyrocytes ex vivo and the presence of large amounts of exogenous hormones in the culture medium. This study aimed to create a culture system that could maintain the function of thyrocytes to produce and secrete thyroid hormones in vitro. METHODS We established a Transwell culture system of primary human thyrocytes. Thyrocytes were seeded on a porous membrane in the inner chamber of the Transwell with top and bottom surfaces exposed to different culture components, mimicking the 'lumen-capillary' structure of the thyroid follicle. Moreover, to eliminate exogenous thyroid hormones from the culture medium, two alternatives were tried: a culture recipe using hormone-reduced serum and a serum-free culture recipe. RESULTS The results showed that primary human thyrocytes expressed thyroid-specific genes at higher levels in the Transwell system than in the monolayer culture. Hormones were detected in the Transwell system even in the absence of serum. The age of the donor was negatively related to the hormone production of thyrocytes in vitro. Intriguingly, primary human thyrocytes cultured without serum secreted higher levels of free triiodothyronine (FT3) than free thyroxine (FT4). CONCLUSION This study confirmed that primary human thyrocytes could maintain the function of hormone production and secretion in the Transwell system, thus providing a useful tool to study thyroid function in vitro.
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Affiliation(s)
- B Jiang
- Department of General Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, 210008, Nanjing, China
| | - C Wang
- Department of Obstetrics and Gynecology, Dushu Lake Hospital Affiliated to Soochow University, Clinical College of Soochow University, Soochow, China
| | - C Qu
- Department of General Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, 210008, Nanjing, China
| | - C Jiang
- Department of General Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, 210008, Nanjing, China
| | - C Zhang
- Department of General Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, 210008, Nanjing, China
| | - Y Chen
- Department of General Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, 210008, Nanjing, China
| | - F Chen
- General Surgery Center Department of Thyroid Surgery, Zhujiang Hospital, Southern Medical University, 253 Gongye Middle Avenue, Haizhu District, Guangzhou, 510280, Guangdong, China
| | - L Su
- Department of General Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, 210008, Nanjing, China.
| | - Y Luo
- Frontier Research Center, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, 210008, Nanjing, China.
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Wang LP, Jiang LM, Wang SJ, Wu SJ, Huang ZQ, Shan PR, Huang WJ, Su L. [Animal study on left bundle branch current of injury and anatomic location of leads in His-purkinje conduction system pacing]. Zhonghua Xin Xue Guan Bing Za Zhi 2023; 51:1175-1180. [PMID: 37963753 DOI: 10.3760/cma.j.cn112148-20231007-00208] [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: 11/16/2023]
Abstract
Objective: Explore the relationship between tip of the left bundle branch pacing lead and anatomic location of left bundle branch as well as the mechanism of left bundle branch current of injury. To clarify the clinical value of left bundle branch current of injury during operation. Methods: The pacing leads were implanted in the hearts of two living swines. Intraoperative electrophysiological study confirmed that the left bundle branch or only the deep left ventricular septum was captured at low output. Immediately after operation, the gross specimen of swine hearts was stained with iodine to observe the gross distribution of His-purkinje conduction system on the left ventricular endocardium and its relationship with the leads. Subsequently, the swine hearts were fixed with formalin solution, and the pacing leads were removed after the positions were marked. The swine hearts were then sectioned and stained with Masson and Goldner trichrome, and the relationship between the anatomic location of the conduction system and the tip of the lead was observed under a light microscope. Results: After iodine staining of the specimen, the His-purkinje conduction system was observed with the naked eye in a net-like distribution, and the lead tip was screwed deeply and fixed in the left bundle branch area of the left ventricular subendocardium in the ventricular septum. Masson and Goldner trichrome staining showed that left bundle branch pacing lead directly passed through the left bundle branch when there was left bundle branch potential with left bundle branch current of injury, while it was not directly contact the left bundle branch when there was left bundle branch potential without left bundle branch current of injury. Conclusion: The left bundle branch current of injury observed on intracardiac electrocardiogram during His-purkinje conduction system pacing suggests that the pacing lead directly contacted the conduction bundle or its branches, therefore, the captured threshold was relatively low. Left bundle branch current of injury can be used as an important anatomic and electrophysiological evidence of left bundle branch capture.
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Affiliation(s)
- L P Wang
- Department of Cardiology, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - L M Jiang
- Department of Cardiology, Sir Run Run Shaw Hospital, Affiliated Hospital of Medical School of Zhejiang University, Shaoxing 312399, China
| | - S J Wang
- Department of Cardiology, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - S J Wu
- Department of Cardiology, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - Z Q Huang
- Department of Cardiology, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - P R Shan
- Department of Cardiology, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - W J Huang
- Department of Cardiology, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - L Su
- Department of Cardiology, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
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Su L, Mao H, Sun Y, Yan H, Ge Q, Gong L, Zhang Y. The analysis of the genotype of Sapovirus outbreaks in Zhejiang Province. Virol J 2023; 20:268. [PMID: 37974193 PMCID: PMC10655437 DOI: 10.1186/s12985-023-02202-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2023] [Accepted: 10/04/2023] [Indexed: 11/19/2023] Open
Abstract
BACKGROUND Sapovirus (SaV) infection is increasing globally. Concurrently, several SaV-outbreaks were observed in children of Zhejiang province, China, in recent years, In this study, the genotypes of Sapovirus from seven outbreaks in the Zhejiang province were analysed. METHODS A total of 105 faecal samples were collected from children aged between 4 and 17 years from the Zhejiang Provincial Center for Disease Control and Prevention between October 2021 and February 2023. Genotypes were processed using reverse transcription polymerase chain reaction and Sanger sequencing, while next-generation sequencing was used to generate a complete viral genome. Deduced amino acid sequences were analysed to detect VP1 gene mutations. RESULTS In total, 60 SaV-positive patients were detected at a 57.14% (60/105) positivity rate. Positive rates in the seven outbreaks were: 22.22% (2/9), 15.00% (3/20), 93.10% (27/29), 84.21% (16/19), 28.57% (2/7), 53.33% (8/15) and 33.33% (2/6), respectively. Four genotypes were identified in the seven outbreaks, of which, GI.1 accounted for 14.29% (1/7), GI.2 accounted for 14.29% (1/7), GI.6 and GII.5 accounted for 14.29% (1/7), and GI.6 accounted for 57.14% (4/7). All patients were children and outbreaks predominantly occurred in primary schools and during cold seasons. Additionally, the complete sequence from the GI.6 outbreak strain showed high homology (identity: 99.99%) with few common substitutions (Y300S, N302S and L8M) in VP1 protein. CONCLUSIONS SaV genotype diversity was observed in the seven outbreaks, with GI.6 being the main SaV genotype in Zhejiang province. It demonstrated high homology and may provide a platform for SaV prevention and control measures.
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Affiliation(s)
- Lingxuan Su
- Zhejiang Provincial Center for Disease Control and Prevention, 3399 Binsheng Road, Hangzhou, 310051, China
- Key Laboratory of Public Health Detection and Etiological Research of Zhejiang Provincial, 3399 Binsheng Road, Hangzhou, 310051, China
| | - Haiyan Mao
- Zhejiang Provincial Center for Disease Control and Prevention, 3399 Binsheng Road, Hangzhou, 310051, China
- Key Laboratory of Public Health Detection and Etiological Research of Zhejiang Provincial, 3399 Binsheng Road, Hangzhou, 310051, China
| | - Yi Sun
- Zhejiang Provincial Center for Disease Control and Prevention, 3399 Binsheng Road, Hangzhou, 310051, China
- Key Laboratory of Public Health Detection and Etiological Research of Zhejiang Provincial, 3399 Binsheng Road, Hangzhou, 310051, China
| | - Hao Yan
- Zhejiang Provincial Center for Disease Control and Prevention, 3399 Binsheng Road, Hangzhou, 310051, China
- Key Laboratory of Public Health Detection and Etiological Research of Zhejiang Provincial, 3399 Binsheng Road, Hangzhou, 310051, China
| | - Qiong Ge
- Zhejiang Provincial Center for Disease Control and Prevention, 3399 Binsheng Road, Hangzhou, 310051, China
- Key Laboratory of Public Health Detection and Etiological Research of Zhejiang Provincial, 3399 Binsheng Road, Hangzhou, 310051, China
| | - Liming Gong
- Zhejiang Provincial Center for Disease Control and Prevention, 3399 Binsheng Road, Hangzhou, 310051, China.
| | - Yanjun Zhang
- Zhejiang Provincial Center for Disease Control and Prevention, 3399 Binsheng Road, Hangzhou, 310051, China.
- Key Laboratory of Public Health Detection and Etiological Research of Zhejiang Provincial, 3399 Binsheng Road, Hangzhou, 310051, China.
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Wang YL, Gao SJ, Su L, Liu YJ, Zhang YW, Du YZ. [The study of clinical characteristics and prognosis of RUNX1-RUNX1T1 positive acute myeloid leukemia based on next-generation sequencing]. Zhonghua Xue Ye Xue Za Zhi 2023; 44:851-854. [PMID: 38049338 PMCID: PMC10694073 DOI: 10.3760/cma.j.issn.0253-2727.2023.10.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Indexed: 12/06/2023]
Affiliation(s)
- Y L Wang
- Cancer Center, the First Hospital, Jilin University, Changchun 130021, China
| | - S J Gao
- Cancer Center, the First Hospital, Jilin University, Changchun 130021, China
| | - L Su
- Cancer Center, the First Hospital, Jilin University, Changchun 130021, China
| | - Y J Liu
- Cancer Center, the First Hospital, Jilin University, Changchun 130021, China
| | - Y W Zhang
- Cancer Center, the First Hospital, Jilin University, Changchun 130021, China
| | - Y Z Du
- Cancer Center, the First Hospital, Jilin University, Changchun 130021, China
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Su L, Liu Q, Wang S, Wu Z, Tang D, Yang Z. Evaluating the Use of SGRT and Abdominal Compression Device for Improved Patient Positioning in Liver Cancer Radiotherapy. Int J Radiat Oncol Biol Phys 2023; 117:e721. [PMID: 37786105 DOI: 10.1016/j.ijrobp.2023.06.2230] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) To mitigate tumor displacement caused by respiratory movement and to enhance positioning accuracy in liver cancer patients during radiotherapy, abdominal compression fixation devices are commonly employed. However, the efficacy of using surface guided radiotherapy (SGRT) to further improve patient setup accuracy in combination with abdominal compression has not been fully established. Hence, we aimed to investigate this in our study. MATERIALS/METHODS In this study, we analyzed data from 11 patients with liver cancer. The patients were positioned using isocentric skin markers and the abdominal compression fixture was placed on an accurate scale reading based on the records from CT simulation. A cone-beam CT (CBCT) scan was performed to assess setup errors. These setup errors represent data for the control group - Skin marker group. The patients were then adjusted to the correct treatment position based on CBCT correction and the SGRT system was activated for monitoring. Care was taken for the region of interest drawn to avoid the abdominal compression device for all patients. The reference surface used for monitoring was the captured VRT surface rather than DICOM. The six degrees of freedom values detected by the SGRT system were recorded, representing data for the test group - SGRT group. Both sets of data were analyzed using statistical software. The errors were presented as median (interquartile range) and the differences between the two groups were tested using paired Wilcoxon rank sum test, with P < 0.05 considered as significant. RESULTS A total of 60 CBCT images were analyzed, the median values and interquartile ranges are presented in the Table. The results showed that the accuracy of the SGRT group in the x and y directions was significantly better than the skin marker group (P < 0.05). The median values for the x (transverse) direction were 0.25(0.09-0.43) cm and 0.09(0.05-0.19) cm for the skin marker and SGRT groups, respectively. The median values for the y (longitudinal) direction were 0.54 (0.29-0.79) cm and 0.14 (0.07-0.24) cm for the skin marker and SGRT groups, respectively. The results for the z (vertical) direction, Rz (rotation), Ry (roll) and Rx (pitch) rotation directions were also analyzed similarly. CONCLUSION The findings of this study suggest that compared to skin markers, SGRT can improve the accuracy of patient positioning in liver cancer radiotherapy with abdominal compression, potentially reducing unnecessary radiation exposure from CBCT imaging due to inaccurate positioning. Further multicenter prospective clinical trials are required to confirm these results.
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Affiliation(s)
- L Su
- Department of Radiation Oncology, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Q Liu
- Department of Radiation Oncology, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - S Wang
- Department of Radiation Oncology, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Z Wu
- Department of Radiation Oncology, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - D Tang
- Department of Radiation Oncology, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Z Yang
- Department of Radiation Oncology, Xiangya Hospital, Central South University, Changsha, Hunan, China
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Su L, Lou X, Yan H, Yang Z, Mao H, Yao W, Sun Y, Pan J, Zhang Y. Importation of a novel Indian Ocean lineage carrying E1-K211E and E2-V264A of Chikungunya Virus in Zhejiang Province, China, in 2019. Virus Genes 2023; 59:693-702. [PMID: 37468826 PMCID: PMC10499945 DOI: 10.1007/s11262-023-02020-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Accepted: 07/03/2023] [Indexed: 07/21/2023]
Abstract
The chikungunya virus (CHIKV) is widespread. In Zhejiang province, China, CHIKV infection is often associated with travelers from tropical and subtropical countries. In the present study, three CHIKV isolates from serum samples of travelers in Zhejiang province in 2019 were sequenced, and phylogenetically analyzed to study their molecular characteristics. Sequence analysis showed that the non-structural protein and the structural protein had 37 and 28 amino acid mutations, respectively; no mutation site was found at the E1-A226 residue, which could increase the adaptability of CHIKV to Aedes albopictus. All three samples carried two mutations, namely, E1-K211E and E2-V264A, which were introduced to Bangladesh around late 2015 and Thailand in early 2017. Phylogenetic analysis revealed that these three CHIKVs were Indian Ocean lineage of the East Africa/Central/South Africa genotype (ECSA) and that the MF773566 strain from Bangladesh (Australia/Bangladesh 2017) had the closest evolutionary relationship. The three CHICKs imported into Zhejiang province in 2019 belonged to the ECSA genotype and had multiple amino acid variation sites. The variation in the three samples provides a certain reference for the subsequent research on CHIKV evolution.
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Affiliation(s)
- Lingxuan Su
- Zhejiang Provincial Center of Disease Control and Prevention, 3399 Binsheng Road, Hangzhou, 310051 China
| | - Xiuyu Lou
- Zhejiang Provincial Center of Disease Control and Prevention, 3399 Binsheng Road, Hangzhou, 310051 China
| | - Hao Yan
- Zhejiang Provincial Center of Disease Control and Prevention, 3399 Binsheng Road, Hangzhou, 310051 China
| | - Zhangnv Yang
- Zhejiang Provincial Center of Disease Control and Prevention, 3399 Binsheng Road, Hangzhou, 310051 China
| | - Haiyan Mao
- Zhejiang Provincial Center of Disease Control and Prevention, 3399 Binsheng Road, Hangzhou, 310051 China
| | - Wenwu Yao
- Zhejiang Provincial Center of Disease Control and Prevention, 3399 Binsheng Road, Hangzhou, 310051 China
| | - Yi Sun
- Zhejiang Provincial Center of Disease Control and Prevention, 3399 Binsheng Road, Hangzhou, 310051 China
| | - Junhang Pan
- Zhejiang Provincial Center of Disease Control and Prevention, 3399 Binsheng Road, Hangzhou, 310051 China
| | - Yanjun Zhang
- Zhejiang Provincial Center of Disease Control and Prevention, 3399 Binsheng Road, Hangzhou, 310051 China
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Su L, Cai MX, Huang WJ. [Conduction system pacing after atrioventricular junction ablation for atrial fibrillation patients with heart failure: a new approach to an old strategy]. Zhonghua Xin Xue Guan Bing Za Zhi 2023; 51:915-921. [PMID: 37709707 DOI: 10.3760/cma.j.cn112148-112148-20230525-00306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 09/16/2023]
Affiliation(s)
- L Su
- Department of Cardiology, the First Affiliated Hospital of Wenzhou Medical University, His-Purkinje System Pacing Research Institute of Wenzhou Medical University, Wenzhou 325000, China
| | - M X Cai
- Department of Cardiology, the First Affiliated Hospital of Wenzhou Medical University, His-Purkinje System Pacing Research Institute of Wenzhou Medical University, Wenzhou 325000, China
| | - W J Huang
- Department of Cardiology, the First Affiliated Hospital of Wenzhou Medical University, His-Purkinje System Pacing Research Institute of Wenzhou Medical University, Wenzhou 325000, China
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Yang Y, Li H, Liu P, Zhang X, Wang Q, Li H, Cui N, Tian X, Long Y, He H, Su L. Emergence of hybrid airway neutrophils with increased mitochondrial metabolism and low inflammatory response in neutrophilic asthma: evidence supporting targeting inhibition of neutrophil glycolysis in this asthma sub-group. QJM 2023; 116:702-704. [PMID: 37184923 DOI: 10.1093/qjmed/hcad090] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 05/07/2023] [Indexed: 05/16/2023] Open
Affiliation(s)
- Y Yang
- Department of Critical Care Medicine, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Science, Beijing 100730, China
| | - H Li
- School of Medicine, Tsinghua University, Beijing 100084, China
| | - P Liu
- Medical Research Center, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - X Zhang
- School of Medicine, Tsinghua University, Beijing 100084, China
| | - Q Wang
- Department of Critical Care Medicine, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Science, Beijing 100730, China
| | - H Li
- 4+4 Medical Doctor Program, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
| | - N Cui
- Department of Critical Care Medicine, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Science, Beijing 100730, China
| | - X Tian
- Department of Respiratory and Critical Care Medicine, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Y Long
- Department of Critical Care Medicine, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Science, Beijing 100730, China
| | - H He
- Department of Critical Care Medicine, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Science, Beijing 100730, China
| | - L Su
- Department of Critical Care Medicine, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Science, Beijing 100730, China
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Sun Y, Cai J, Mao H, Gong L, Chen Y, Yan H, Shi W, Lou X, Su L, Wang X, Zhou B, Pei Z, Cao Y, Ge Q, Zhang Y. Epidemiology of hand, foot and mouth disease and genomic surveillance of coxsackievirus A10 circulating in Zhejiang Province, China during 2017 to 2022. J Clin Virol 2023; 166:105552. [PMID: 37523938 DOI: 10.1016/j.jcv.2023.105552] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Revised: 07/19/2023] [Accepted: 07/21/2023] [Indexed: 08/02/2023]
Abstract
BACKGROUND Coxsackievirus A10 (CA10) is one of the etiological agents associated with hand, foot and mouth disease (HFMD). OBJECTIVES We aimed to perform a retrospective analysis of the molecular epidemiological characteristics and genetic features of HFMD associated with CA10 infections in Zhejiang Province from 2017 to 2022. STUDY DESIGN Epidemiologic features were summarized. Throat swab specimens were collected and tested. The VP1 regions were sequenced for genotyping. CA10 positive samples were isolated. Whole genomes of CA10 isolations were sequenced. Nucleotide and amino acid changes were characterized. Phylogenetic trees were constructed. RESULTS The number of HFMD cases fluctuated from 2017 to 2022. Children aged below 3 years accounted for the majority (66.29%) and boys were more frequently affected than girls. Cases peaked in June. The positivity rate of HEV was 62.69%. A total of 90 strains of CA10 were isolated and 53 genomes were obtained. All CA10 in this study could be assigned to two genogroups, C (C2) and F (F1 and F3). CONCLUSION The clinical manifestations of HFMD associated with HEV are complex and diverse. CA10 infection may be emerging as a new and major cause of HFMD because an upward trend was observed in the proportion of CA10 cases after the use of EV71 vaccines. Different genogroups of CA10 had different geographic distribution patterns. Surveillance should be strengthened and further comprehensive studies should be continued to provide a scientific basis for HFMD prevention and control.
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Affiliation(s)
- Yi Sun
- Zhejiang Provincial Center for Disease Control and Prevention, 3399 Binsheng Road, Hangzhou, Zhejiang 310051, China
| | - Jian Cai
- Zhejiang Provincial Center for Disease Control and Prevention, 3399 Binsheng Road, Hangzhou, Zhejiang 310051, China
| | - Haiyan Mao
- Zhejiang Provincial Center for Disease Control and Prevention, 3399 Binsheng Road, Hangzhou, Zhejiang 310051, China
| | - Liming Gong
- Zhejiang Provincial Center for Disease Control and Prevention, 3399 Binsheng Road, Hangzhou, Zhejiang 310051, China
| | - Yin Chen
- Zhejiang Provincial Center for Disease Control and Prevention, 3399 Binsheng Road, Hangzhou, Zhejiang 310051, China
| | - Hao Yan
- Zhejiang Provincial Center for Disease Control and Prevention, 3399 Binsheng Road, Hangzhou, Zhejiang 310051, China
| | - Wen Shi
- Zhejiang Provincial Center for Disease Control and Prevention, 3399 Binsheng Road, Hangzhou, Zhejiang 310051, China
| | - Xiuyu Lou
- Zhejiang Provincial Center for Disease Control and Prevention, 3399 Binsheng Road, Hangzhou, Zhejiang 310051, China
| | - Lingxuan Su
- Zhejiang Provincial Center for Disease Control and Prevention, 3399 Binsheng Road, Hangzhou, Zhejiang 310051, China
| | - Xingxing Wang
- Zhejiang Provincial Center for Disease Control and Prevention, 3399 Binsheng Road, Hangzhou, Zhejiang 310051, China
| | - Biaofeng Zhou
- Zhejiang Provincial Center for Disease Control and Prevention, 3399 Binsheng Road, Hangzhou, Zhejiang 310051, China
| | - Zhichao Pei
- Zhejiang Provincial Center for Disease Control and Prevention, 3399 Binsheng Road, Hangzhou, Zhejiang 310051, China
| | - Yanli Cao
- Zhejiang Provincial Center for Disease Control and Prevention, 3399 Binsheng Road, Hangzhou, Zhejiang 310051, China
| | - Qiong Ge
- Zhejiang Provincial Center for Disease Control and Prevention, 3399 Binsheng Road, Hangzhou, Zhejiang 310051, China.
| | - Yanjun Zhang
- Zhejiang Provincial Center for Disease Control and Prevention, 3399 Binsheng Road, Hangzhou, Zhejiang 310051, China.
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Yu S, Zhang Q, Su L, He J, Shi W, Yan H, Mao H, Sun Y, Cheng D, Wang X, Zhang Y, Fang L. Dabie bandavirus infection induces macrophagic pyroptosis and this process is attenuated by platelets. PLoS Negl Trop Dis 2023; 17:e0011488. [PMID: 37486928 PMCID: PMC10399884 DOI: 10.1371/journal.pntd.0011488] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Accepted: 06/29/2023] [Indexed: 07/26/2023] Open
Abstract
Severe fever with thrombocytopenia syndrome (SFTS) is an emerging tick-borne infection with a high mortality rate in humans, which is caused by Dabie bandavirus (DBV), formerly known as SFTS virus. Clinical manifestations of SFTS are characterized by high fever, thrombocytopenia, leukopenia, hemorrhage, gastrointestinal symptoms, myalgia and local lymph node enlargement with up to 30% case fatality rates in human. Macrophage depletion in secondary lymphoid organs have important roles in the pathogenic process of fatal SFTS, but its exact cell death mechanism remains largely unknown. Here, we showed for the first time that DBV infection induced macrophagic pyroptosis, as evidenced by swollen cells, pore-forming structures, accumulation of gasdermin D N-terminal (GSDMD-NT) as well as the release of lactate dehydrogenase (LDH) and IL-1β in human macrophages. In addition to the upregulation of pyronecrosis genes, the expressions of pyroptosis-related proteins (GSDMD, caspase-1 and IL-1β) were also elevated. To be noted, platelets were found to play a protective role in DBV-derived pyroptosis. Transcriptome analysis and in vitro studies demonstrated that platelets significantly reduced the gene expressions and protein production of pro-pyroptotic markers and inflammatory cytokines in macrophages, whereas platelets conferred a propagation advantage for DBV. Collectively, this study demonstrates a novel mechanism by which DBV invasion triggers pyroptosis as a host defense to remove replication niches in human macrophages and platelets provide an additional layer to reduce cellular death. These findings may have important implications to the pathogenesis of lethal DBV, and provide new ideas for developing novel therapeutics to combat its infection.
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Affiliation(s)
- Sicong Yu
- Department of Critical Care Medicine, Sir Run Run Shaw Hospital, College of Medicine, Zhejiang University, Hangzhou, China
- School of Medical Technology and Information Engineering, Zhejiang Chinese Medical University, Hangzhou, China
- The First People's Hospital of Xiaoshan District, Hangzhou, China
| | - Qinyi Zhang
- School of Medical Technology and Information Engineering, Zhejiang Chinese Medical University, Hangzhou, China
- Department of Microbiology, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, China
| | - Lingxuan Su
- Department of Microbiology, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, China
| | - Ji He
- Blood Center of Zhejiang Province, Hangzhou, China
| | - Wen Shi
- Department of Microbiology, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, China
| | - Hao Yan
- Department of Microbiology, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, China
| | - Haiyan Mao
- Department of Microbiology, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, China
| | - Yi Sun
- Department of Microbiology, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, China
| | - Dongqing Cheng
- School of Medical Technology and Information Engineering, Zhejiang Chinese Medical University, Hangzhou, China
| | - Xuan Wang
- Shaoxing Shangyu District Center for Disease Control and Prevention, Shaoxing, China
| | - Yanjun Zhang
- Department of Microbiology, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, China
| | - Lei Fang
- Department of Critical Care Medicine, Sir Run Run Shaw Hospital, College of Medicine, Zhejiang University, Hangzhou, China
- Key Laboratory of Microbial Technology and Bioinformatics of Zhejiang Province, Hangzhou, China
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Zhou B, Sun Y, Mao H, Su L, Lou Y, Yan H, Yao W, Chen H, Zhang Y. Molecular epidemiological characteristics of SARS-CoV-2 in imported cases from 2021 to 2022 in Zhejiang Province, China. Front Public Health 2023; 11:1189969. [PMID: 37427288 PMCID: PMC10323361 DOI: 10.3389/fpubh.2023.1189969] [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: 03/22/2023] [Accepted: 05/30/2023] [Indexed: 07/11/2023] Open
Abstract
Backgrounds The coronavirus disease 2019 (COVID-19) pandemic caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has been a global threat since 2020. The emergence of the Omicron variant in 2021, which replaced Delta as the dominant variant of concern, has had a significant adverse impact on the global economy and public health. During this period, Zhejiang Province implemented dynamic zeroing and focused on preventing imported cases. This study aimed to gain clear insight into the characteristics of imported COVID-19 cases in Zhejiang Province. Methods We conducted a systematic molecular epidemiological analysis of 146 imported cases between July 2021 and November 2022 in Zhejiang Province. Virus samples with cycle threshold (Ct) value less than 32 were performed next generation sequencing. Basing the whole genome sequence obtained after quality control and assembly of reads, the whole genome variation map and phylogenetic tree were constructed and further analyzed. Results Our study identified critical months and populations for surveillance, profiled the variation of various lineages, determined the evolutionary relationships among various lineages of SARS-CoV-2, and compared the results in Zhejiang with those obtained worldwide during this period. Conclusion The continuous molecular epidemiological surveillance of imported cases of COVID-19 in Zhejiang Province during 2021 to 2022 is consistent with the global epidemic trend.
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Fan F, Cao S, Zhang LM, Chen N, You P, Su L, Wang JY, Zhao XL, Chen GD. [Endoscopic ultrasonographic features of submucosal lesions of upper digestive tract suspected gastrointestinal stromal tumors and their correlation with progression and pathological risk grade of the lesions]. Zhonghua Yi Xue Za Zhi 2023; 103:1643-1648. [PMID: 37248065 DOI: 10.3760/cma.j.cn112137-20230207-00177] [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: 05/31/2023]
Abstract
Objective: To investigate the endoscopic ultrasonographic (EUS) characteristics of submucosal lesions of upper digestive tract suspected gastrointestinal stromal tumors (GIST) and their correlation with biological behaviors and pathological risk grade of the tumors. Methods: Retrospective cohort study. The EUS findings, follow-up review, surgical treatment and pathological data of patients with suspected GIST at the Gastrointestinal Endoscopy Center of Peking University People's Hospital from January 2013 to April 2021 were collected. All samples were divided into follow-up group and treatment group based on the pathological condition and the patient's treatment intention. According to whether or not the tumor was enlarged in EUS, the follow-up group was divided into non-enlarged group and enlarged group. Paired T-test was used to compare the lesion size before and after follow-up, and logistic regression was used to analyze the risk factors of tumor enlargement. According to the treatment methods, the treatment group was further divided into endoscopic treatment group and surgical treatment group. According to the pathological results and risk grade, the treatment group was further divided into the low-risk group and the medium-risk group. The risk factors of pathological malignant risk were analyzed by logistic regression, and the tumor diameter of patients with moderate or above pathological risk was predicted by receiver operation characteristic (ROC) curve. The relationship between the findings of EUS and the progression and pathological risk of GIST were also explored. Results: Seventy-three cases including 23 males and 50 females, with an age of 58 (30-88) years, were included in the follow-up group, with a mean lesion diameter of (1.21±0.49) cm before follow-up, median follow-up interval of 33.8 months, and a lesion diameter of (1.18±0.49) cm after follow-up. There was no significant difference (all P>0.05) in lesion diameter between before and after follow-up. There was no significant difference (all P>0.05) between tumor enlargement group (18 cases, 24.7%) and non-enlargement group (55 cases, 75.3%). One hundred and thirty-eight cases, including 52 males and 86 females, with an age of 60 (19-84) years, were enrolled in the treatment group, with a mean EUS estimated diameter of (2.55±1.35) cm and pathological diameters of (3.43±2.42) cm. Ninety-five (68.8%) of these cases were pathologically confirmed as GIST while 43 cases were diagnosed as other tumor types, including 37 benign tumors and 6 malignant tumors. In multifactorial logistic regression analysis, only the increase of tumor diameter [OR (95%CI): 1.800 (1.172-2.766), P=0.007] was a risk factor for pathological intermediate or higher risk. The optimal tumor diameter for predicting pathological intermediate or higher risk using ROC curve analysis was 2.75 cm, with a sensitivity 71.4%, specificity 79.0%, Youden index 0.5 and area under ROC curve 0.807 (95%CI: 0.703-0.909). Conclusions: EUS is essential for assessing the risk of progression and malignancy of submucosal lesions of upper digestive tract suspected GIST. For lesions of small diameter, the interval of follow-up shall be relatively extended while the indication of treatment could be partially waived.
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Affiliation(s)
- F Fan
- Department of Gastroenterology, Peking University People's Hospital, Beijing 100044, China
| | - S Cao
- Department of Gastroenterology, Peking University People's Hospital, Beijing 100044, China
| | - L M Zhang
- Department of Gastroenterology, Peking University People's Hospital, Beijing 100044, China
| | - N Chen
- Department of Gastroenterology, Peking University People's Hospital, Beijing 100044, China
| | - P You
- Department of Gastroenterology, Peking University People's Hospital, Beijing 100044, China
| | - L Su
- Department of Gastroenterology, Peking University People's Hospital, Beijing 100044, China
| | - J Y Wang
- Department of Gastroenterology, Peking University People's Hospital, Beijing 100044, China
| | - X L Zhao
- Department of Gastroenterology, Peking University People's Hospital, Beijing 100044, China
| | - G D Chen
- Department of Gastroenterology, Peking University People's Hospital, Beijing 100044, China
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Lou X, Yan H, Su L, Sun Y, Wang X, Gong L, Chen Y, Li Z, Fang Z, Mao H, Chen K, Zhang Y. Detecting the Neuraminidase R294K Mutation in Avian Influenza A (H7N9) Virus Using Reverse Transcription Droplet Digital PCR Method. Viruses 2023; 15:v15040983. [PMID: 37112963 PMCID: PMC10146270 DOI: 10.3390/v15040983] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Revised: 04/11/2023] [Accepted: 04/11/2023] [Indexed: 04/29/2023] Open
Abstract
The R294K mutation in neuraminidase (NA) causes resistance to oseltamivir in the avian influenza virus H7N9. Reverse transcription droplet digital polymerase chain reaction (RT-dd PCR) is a novel technique for detecting single-nucleotide polymorphisms. This study aimed to develop an RT-dd PCR method for detecting the R294K mutation in H7N9. Primers and dual probes were designed using the H7N9 NA gene and the annealing temperature was optimized at 58.0 °C. The sensitivity of our RT-dd PCR method was not significantly different from that of RT-qPCR (p = 0.625), but it could specifically detect R294 and 294K in H7N9. Among 89 clinical samples, 2 showed the R294K mutation. These two strains were evaluated using a neuraminidase inhibition test, which revealed that their sensitivity to oseltamivir was greatly reduced. The sensitivity and specificity of RT-dd PCR were similar to those of RT-qPCR and its accuracy was comparable to that of NGS. The RT-dd PCR method had the advantages of absolute quantitation, eliminating the need for a calibration standard curve, and being simpler in both experimental operation and result interpretation than NGS. Therefore, this RT-dd PCR method can be used to quantitatively detect the R294K mutation in H7N9.
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Affiliation(s)
- Xiuyu Lou
- Key Laboratory of Public Health Detection and Etiological Research of Zhejiang Province, Department of Microbiology, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou 310051, China
| | - Hao Yan
- Key Laboratory of Public Health Detection and Etiological Research of Zhejiang Province, Department of Microbiology, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou 310051, China
| | - Lingxuan Su
- Key Laboratory of Public Health Detection and Etiological Research of Zhejiang Province, Department of Microbiology, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou 310051, China
| | - Yi Sun
- Key Laboratory of Public Health Detection and Etiological Research of Zhejiang Province, Department of Microbiology, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou 310051, China
| | - Xinyin Wang
- Key Laboratory of Public Health Detection and Etiological Research of Zhejiang Province, Department of Microbiology, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou 310051, China
| | - Liming Gong
- Key Laboratory of Public Health Detection and Etiological Research of Zhejiang Province, Department of Microbiology, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou 310051, China
| | - Yin Chen
- Key Laboratory of Public Health Detection and Etiological Research of Zhejiang Province, Department of Microbiology, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou 310051, China
| | - Zhen Li
- Key Laboratory of Public Health Detection and Etiological Research of Zhejiang Province, Department of Microbiology, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou 310051, China
| | - Zhongbiao Fang
- Shulan International Medical College, Zhejiang Shuren University, Hangzhou 310015, China
| | - Haiyan Mao
- Key Laboratory of Public Health Detection and Etiological Research of Zhejiang Province, Department of Microbiology, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou 310051, China
| | - Keda Chen
- Shulan International Medical College, Zhejiang Shuren University, Hangzhou 310015, China
| | - Yanjun Zhang
- Key Laboratory of Public Health Detection and Etiological Research of Zhejiang Province, Department of Microbiology, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou 310051, China
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Fang L, Yu S, Tian X, Fu W, Su L, Chen Z, Yan C, He J, Hong J, Lian W, Liu G, Zhang Y, Zhou J, Hu L. Severe fever with thrombocytopenia syndrome virus replicates in platelets and enhances platelet activation. J Thromb Haemost 2023; 21:1336-1351. [PMID: 36792011 DOI: 10.1016/j.jtha.2023.02.006] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Revised: 02/06/2023] [Accepted: 02/07/2023] [Indexed: 02/15/2023]
Abstract
BACKGROUND Severe fever with thrombocytopenia syndrome (SFTS) virus (SFTSV) infection causes an emerging hemorrhagic fever in East Asia with a high mortality rate. Thrombocytopenia is a consistent feature of SFTS illness, but the mechanism remains elusive. OBJECTIVES We aimed to better understand the role of platelets in the pathophysiology of SFTSV infection, including the development of thrombocytopenia. METHODS Using platelets from healthy volunteers and patients with SFTS, we evaluated the functional changes in platelets against SFTSV infection. We investigated the direct effect of glycoprotein VI on platelet-SFTSV interaction by quantitative real-time PCR, molecular docking, surface plasmon resonance spectrometry, flow cytometry, western blot, and platelet functional studies in vitro. Interactions of SFTSV and platelet-SFTSV complexes with macrophages were also determined by scanning electron microscope, quantitative real-time PCR, and flow cytometry. RESULTS This study is the first to demonstrate that platelets are capable of harboring and producing SFTSV particles. Structural and functional studies found that SFTSVs bind platelet glycoprotein VI to potentiate platelet activation, including platelet aggregation, adenosine triphosphate release, spreading, clot retraction, coagulation, phosphatidylserine exposure, thrombus formation, and adherence. In vitro mechanistic studies highlighted that the interaction of platelets with human THP-1 cells promoted SFTSV clearance and suppressed cytokine production in macrophages. However, unwanted SFTSV replication in macrophages reciprocally aggravated SFTSV persistence in the circulation, which may contribute to thrombocytopenia and other complications during SFTSV infection. CONCLUSION These findings together highlighted the pathophysiological role of platelets in initial intrinsic defense against SFTSV infections, as well as intertwined processes with host immunity, which can also lead to thrombocytopenia and poor prognosis.
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Affiliation(s)
- Lei Fang
- Department of Critical Care Medicine, Sir Run Run Shaw Hospital, College of Medicine, Zhejiang University, Hangzhou, China; Zhejiang Provincial Centers for Disease Control and Prevention, Hangzhou, China; Key Laboratory of Microbial Technology and Bioinformatics of Zhejiang Province, Hangzhou, China
| | - Sicong Yu
- School of Medical Technology and Information Engineering, Zhejiang Chinese Medical University, Hangzhou, China
| | - Xiaoxu Tian
- Department of Cardiology, Cardiovascular Center, Henan Key Laboratory of Hereditary, Cardiovascular Diseases, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Wanrong Fu
- Department of Cardiology, Cardiovascular Center, Henan Key Laboratory of Hereditary, Cardiovascular Diseases, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Lingxuan Su
- Zhejiang Provincial Centers for Disease Control and Prevention, Hangzhou, China
| | - Zhi Chen
- National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Hangzhou, China
| | - Chunlan Yan
- Department of Biophysics, College of Medicine, Zhejiang University, Hangzhou, China
| | - Ji He
- Blood Center of Zhejiang Province, Hangzhou, China
| | - Jin Hong
- Department of Cardiology, Cardiovascular Center, Henan Key Laboratory of Hereditary, Cardiovascular Diseases, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Wenwen Lian
- National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Hangzhou, China
| | - Gangqiong Liu
- Department of Cardiology, Cardiovascular Center, Henan Key Laboratory of Hereditary, Cardiovascular Diseases, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Yanjun Zhang
- Zhejiang Provincial Centers for Disease Control and Prevention, Hangzhou, China.
| | - Jiancang Zhou
- Department of Critical Care Medicine, Sir Run Run Shaw Hospital, College of Medicine, Zhejiang University, Hangzhou, China; Key Laboratory of Microbial Technology and Bioinformatics of Zhejiang Province, Hangzhou, China.
| | - Liang Hu
- Department of Critical Care Medicine, Sir Run Run Shaw Hospital, College of Medicine, Zhejiang University, Hangzhou, China; Department of Cardiology, Cardiovascular Center, Henan Key Laboratory of Hereditary, Cardiovascular Diseases, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China; Academy of Integrative Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China.
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Zhang Q, Zhu S, Zhang X, Su L, Ni J, Zhang Y, Fang L. Recent insights into reverse genetics of norovirus. Virus Res 2023; 325:199046. [PMID: 36657615 DOI: 10.1016/j.virusres.2023.199046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2022] [Revised: 12/23/2022] [Accepted: 01/15/2023] [Indexed: 01/18/2023]
Abstract
Norovirus is the leading cause of viral gastroenteritis globally, and poses substantial threats to public health. Despite substantial progress made in preventing norovirus diseases, the lack of a robust virus culture system has hampered biological research and effective strategies to combat this pathogen. Reverse genetic system is the technique to generate infectious viruses from cloned genetic constructs, which is a powerful tool for the investigation of viral pathogenesis and for the development of novel drugs and vaccines. The strategies of reverse genetics include bacterial artificial chromosomes, vaccinia virus vectors, and entirely plasmid-based systems. Since each strategy has its pros and cons, choosing appropriate approaches will greatly improve the efficiency of virus rescue. Reverse genetic systems that have been employed for norovirus greatly extend its life cycle and facilitate the development of medical countermeasures. In this review, we summarize the current knowledge on the structure, transmission, genetic evolution and clinical manifestations of norovirus, and describe recent advances in the studies of norovirus reverse genetics as well as its future prospects for therapeutics and vaccine development.
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Affiliation(s)
- Qinyi Zhang
- School of Medical Technology and Information Engineering, Zhejiang Chinese Medical University, Hangzhou, China; Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, China
| | - Shuirong Zhu
- Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, China
| | | | - Lingxuan Su
- Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, China
| | - Jun Ni
- Department of Critical Care Medicine, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China; Key Laboratory of Microbial Technology and Bioinformatics of Zhejiang Province, Hangzhou, China
| | - Yanjun Zhang
- Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, China.
| | - Lei Fang
- Department of Critical Care Medicine, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China; Key Laboratory of Microbial Technology and Bioinformatics of Zhejiang Province, Hangzhou, China.
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Yang Y, Deng S, Wang C, Wang Y, Shi Y, Lin J, Wang N, Su L, Yang F, Wang H, Zhu S. Association of Dental Caries with Muscle Mass, Muscle Strength, and Sarcopenia: A Community-Based Study. J Nutr Health Aging 2023; 27:10-20. [PMID: 36651482 DOI: 10.1007/s12603-022-1875-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
OBJECTIVES Changes in the oral cavity can reflect other changes throughout the body. This study aimed to investigate the association of dental caries with muscle mass, muscle strength, and sarcopenia, and also to describe the microbial diversity, composition, and community structure of severe dental caries and sarcopenia. DESIGN Cross-sectional study based on a Chinese population aged from 50 to 85 years. SETTING Communities from Lanxi City, Zhejiang Province, China. PARTICIPANTS A total of 1,442 participants aged from 50 to 85 years from a general community (62.8% women; median age 61.0 [interquartile range: 55.0, 68.0]). MEASUREMENTS Dental caries was assessed by the decayed, missing, and filled teeth (DMFT) index. Sarcopenia was defined as the presence of both low muscle mass (assessed by dual-energy X-ray absorptiometry scanning) and low muscle strength (assessed by handgrip strength). Multivariate logistic regression models were used to analyze the association of dental caries with muscle mass, muscle strength, and sarcopenia. Fecal samples underwent 16S rRNA profiling to evaluate the diversity and composition of the gut microbiota in patients with severe dental caries and/or sarcopenia. RESULTS In the fully adjusted logistic models, dental caries was positively associated with low muscle strength (DMFT ≥ 7: OR, 1.61; 95% CI, 1.25-2.06), and sarcopenia (DMFT ≥ 7: OR, 1.51; 95% CI, 1.01-2.26), but not low muscle mass. Severe dental caries was positively associated with higher alpha-diversity indices (richness, chao1, and ACE, all p < 0.05) and associated with beta-diversity based on Bray-Curtis distance (p = 0.006). The severe dental caries group and the sarcopenia group overlapped with 11 depleted and 13 enriched genera. CONCLUSION Dental caries was positively associated with low muscle strength and sarcopenia but not muscle mass, and this association was more pronounced in male individuals. Significant differences were observed in gut microbiota composition both in severe dental caries and sarcopenia, and there was an overlap of the genera features. Future longitudinal studies are needed to clarify causal relationships.
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Affiliation(s)
- Y Yang
- Dr. Huiming Wang, Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, North Qiutao Road No.166, Hangzhou, Zhejiang, China, ; Tel: 13858092696; Fax: 0571-87217433; Dr. Shankuan Zhu, Chronic Disease Research Institute, The Children's Hospital, and National Clinical Research Center for Child Health, School of Public Health, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China; ; Tel : +86-571-8820-8520; Fax: +86-571-8820-8520
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Su L, Zhao S, Lin P, Yin Y, Lin R. 1250P Camrelizumab plus apatinib combined with POF in patients with untreated advanced gastric cancer (UAGC): A single-center, open-label, single-arm, phase II trial (SYLT-017). Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.1368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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26
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Guan T, Zhang M, Su L. 624MO Retrospective analysis of clinical value of ctDNA in newly diagnosed diffuse large B cell lymphoma. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.750] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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27
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Voigt AL, Dardari R, Su L, Lara NLM, Sinha S, Jaffer A, Munyoki SK, Alpaugh W, Dufour A, Biernaskie J, Orwig KE, Dobrinski I. Metabolic transitions define spermatogonial stem cell maturation. Hum Reprod 2022; 37:2095-2112. [PMID: 35856882 PMCID: PMC9614685 DOI: 10.1093/humrep/deac157] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Revised: 06/23/2022] [Indexed: 11/13/2022] Open
Abstract
STUDY QUESTION Do spermatogonia, including spermatogonial stem cells (SSCs), undergo metabolic changes during prepubertal development? SUMMARY ANSWER Here, we show that the metabolic phenotype of prepubertal human spermatogonia is distinct from that of adult spermatogonia and that SSC development is characterized by distinct metabolic transitions from oxidative phosphorylation (OXPHOS) to anaerobic metabolism. WHAT IS KNOWN ALREADY Maintenance of both mouse and human adult SSCs relies on glycolysis, while embryonic SSC precursors, primordial germ cells (PGCs), exhibit an elevated dependence on OXPHOS. Neonatal porcine SSC precursors reportedly initiate a transition to an adult SSC metabolic phenotype at 2 months of development. However, when and if such a metabolic transition occurs in humans is ambiguous. STUDY DESIGN, SIZE, DURATION To address our research questions: (i) we performed a meta-analysis of publicly available and newly generated (current study) single-cell RNA sequencing (scRNA-Seq) datasets in order to establish a roadmap of SSC metabolic development from embryonic stages (embryonic week 6) to adulthood in humans (25 years of age) with a total of ten groups; (ii) in parallel, we analyzed single-cell RNA sequencing datasets of isolated pup (n = 3) and adult (n = 2) murine spermatogonia to determine whether a similar metabolic switch occurs; and (iii) we characterized the mechanisms that regulate these metabolic transitions during SSC maturation by conducting quantitative proteomic analysis using two different ages of prepubertal pig spermatogonia as a model, each with four independently collected cell populations. PARTICIPANTS/MATERIALS, SETTING, METHODS Single testicular cells collected from 1-year, 2-year and 7-year-old human males and sorted spermatogonia isolated from 6- to 8-day (n = 3) and 4-month (n = 2) old mice were subjected to scRNA-Seq. The human sequences were individually processed and then merged with the publicly available datasets for a meta-analysis using Seurat V4 package. We then performed a pairwise differential gene expression analysis between groups of age, followed by pathways enrichment analysis using gene set enrichment analysis (cutoff of false discovery rate < 0.05). The sequences from mice were subjected to a similar workflow as described for humans. Early (1-week-old) and late (8-week-old) prepubertal pig spermatogonia were analyzed to reveal underlying cellular mechanisms of the metabolic shift using immunohistochemistry, western blot, qRT-PCR, quantitative proteomics, and culture experiments. MAIN RESULTS AND THE ROLE OF CHANCE Human PGCs and prepubertal human spermatogonia show an enrichment of OXPHOS-associated genes, which is downregulated at the onset of puberty (P < 0.0001). Furthermore, we demonstrate that similar metabolic changes between pup and adult spermatogonia are detectable in the mouse (P < 0.0001). In humans, the metabolic transition at puberty is also preceded by a drastic change in SSC shape at 11 years of age (P < 0.0001). Using a pig model, we reveal that this metabolic shift could be regulated by an insulin growth factor-1 dependent signaling pathway via mammalian target of rapamycin and proteasome inhibition. LARGE SCALE DATA New single-cell RNA sequencing datasets obtained from this study are freely available through NCBI GEO with accession number GSE196819. LIMITATIONS, REASONS FOR CAUTION Human prepubertal tissue samples are scarce, which led to the investigation of a low number of samples per age. Gene enrichment analysis gives only an indication about the functional state of the cells. Due to limited numbers of prepubertal human spermatogonia, porcine spermatogonia were used for further proteomic and in vitro analyses. WIDER IMPLICATIONS OF THE FINDINGS We show that prepubertal human spermatogonia exhibit high OXHPOS and switch to an adult-like metabolism only after 11 years of age. Prepubescent cancer survivors often suffer from infertility in adulthood. SSC transplantation could provide a powerful tool for the treatment of infertility; however, it requires high cell numbers. This work provides key insight into the dynamic metabolic requirements of human SSCs across development that would be critical in establishing ex vivo systems to support expansion and sustained function of SSCs toward clinical use. STUDY FUNDING/COMPETING INTEREST(S) This work was funded by the NIH/NICHD R01 HD091068 and NIH/ORIP R01 OD016575 to I.D. K.E.O. was supported by R01 HD100197. S.K.M. was supported by T32 HD087194 and F31 HD101323. The authors declare no conflict of interest.
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Affiliation(s)
- A L Voigt
- Department of Comparative Biology and Experimental Medicine, University of Calgary, Calgary, AB, Canada
| | - R Dardari
- Department of Comparative Biology and Experimental Medicine, University of Calgary, Calgary, AB, Canada
| | - L Su
- Department of Comparative Biology and Experimental Medicine, University of Calgary, Calgary, AB, Canada
| | - N L M Lara
- Department of Comparative Biology and Experimental Medicine, University of Calgary, Calgary, AB, Canada
| | - S Sinha
- Department of Comparative Biology and Experimental Medicine, University of Calgary, Calgary, AB, Canada
| | - A Jaffer
- Department of Comparative Biology and Experimental Medicine, University of Calgary, Calgary, AB, Canada
| | - S K Munyoki
- Department of Obstetrics, Gynecology and Reproductive Sciences, Magee-Womens Research Institute, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - W Alpaugh
- Department of Comparative Biology and Experimental Medicine, University of Calgary, Calgary, AB, Canada
| | - A Dufour
- Department of Physiology and Pharmacology, University of Calgary, Calgary, AB, Canada
| | - J Biernaskie
- Department of Comparative Biology and Experimental Medicine, University of Calgary, Calgary, AB, Canada
| | - K E Orwig
- Department of Obstetrics, Gynecology and Reproductive Sciences, Magee-Womens Research Institute, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - I Dobrinski
- Correspondence address. Department of Comparative Biology and Experimental Medicine, University of Calgary, Calgary, AB T2N 4N1, Canada. E-mail:
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Cai MX, Su L, Huang WJ. [Cardiac conduction system pacing: clinical practice]. Zhonghua Xin Xue Guan Bing Za Zhi 2022; 50:531-536. [PMID: 35705460 DOI: 10.3760/cma.j.cn112148-20220330-00224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Affiliation(s)
- M X Cai
- Department of Cardiology, the First Affiliated Hospital of Wenzhou Medical University, Key Lab of Cardiovascular Disease of Wenzhou, Wenzhou 325000, China
| | - L Su
- Department of Cardiology, the First Affiliated Hospital of Wenzhou Medical University, Key Lab of Cardiovascular Disease of Wenzhou, Wenzhou 325000, China
| | - W J Huang
- Department of Cardiology, the First Affiliated Hospital of Wenzhou Medical University, Key Lab of Cardiovascular Disease of Wenzhou, Wenzhou 325000, China
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liu Q, Su L, Tang D, Wu Z, Yang Z, Peng H. PO-1840 The Feasibility of SGRT on Locally Advanced Cervical Cancer Patients with Bladder Protocol. Radiother Oncol 2022. [DOI: 10.1016/s0167-8140(22)03803-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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30
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Shi PJ, Su L, Xiao H. [Research progress on post-bariatric hypoglycemia]. Zhonghua Nei Ke Za Zhi 2022; 61:349-354. [PMID: 35263981 DOI: 10.3760/cma.j.cn112138-20210416-00285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Affiliation(s)
- P J Shi
- Department of Endocrinology, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
| | - L Su
- Department of Geriatrics, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
| | - Haipeng Xiao
- Department of Endocrinology, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
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Xiong Y, Su L, Ye F, Zhao S. Inhibition of NADP(H) supply by highly active phosphatase-like ceria nanozymes to boost oxidative stress and ferroptosis. Materials Today Chemistry 2022; 23:100672. [DOI: 10.1016/j.mtchem.2021.100672] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2023]
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32
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Huang J, Yin H, Zhang Y, Qiao H, Su L, Wang J. Expression of TGF-β/Smads in Cecum and Spleen of Chicken Infected with E. Tenella. Braz J Poult Sci 2022. [DOI: 10.1590/1806-9061-2021-1446] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- J Huang
- Henan University of Technology, China; State Administration of Grain, China
| | - H Yin
- Henan University of Technology, China; State Administration of Grain, China
| | - Y Zhang
- Henan University of Technology, China
| | - H Qiao
- Henan University of Technology, China
| | - L Su
- Henan University of Technology, China
| | - J Wang
- Henan University of Technology, China
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Su L, Chen XY, Huang WJ. [A practical and evidence-based summary of 2021 ESC guidelines on cardiac pacing and cardiac resynchronization therapy]. Zhonghua Xin Xue Guan Bing Za Zhi 2021; 49:1247-1251. [PMID: 34905906 DOI: 10.3760/cma.j.cn112148-20210922-00809] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Affiliation(s)
- L Su
- Department of Cardiology, First Affiliated Hospital of Wenzhou Medical University, Key Laboratory of Cardiovascular Disease of Wenzhou, Wenzhou 325000, China
| | - X Y Chen
- Department of Cardiology, Zhongshan Hospital, Fudan University, Shanghai Institute of Cardiovascular Disease, Shanghai 200032, China
| | - W J Huang
- Department of Cardiology, First Affiliated Hospital of Wenzhou Medical University, Key Laboratory of Cardiovascular Disease of Wenzhou, Wenzhou 325000, China
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Su L, Xu SZ, Huang YX, Wu Q, Hou ZW. Developing a near-infrared spectroscopy and microwave-induced thermoacoustic tomography-based dual-modality imaging system. Rev Sci Instrum 2021; 92:124901. [PMID: 34972469 DOI: 10.1063/5.0067878] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Accepted: 12/01/2021] [Indexed: 06/14/2023]
Abstract
Near-infrared spectroscopy (NIRS) techniques can provide noninvasive in vivo hemoglobin oxygenation information but suffer from relatively low resolution in biological tissue imaging. Microwave-induced thermoacoustic tomography (TAT) can produce high-resolution images of the biological tissue anatomy but offer limited physiological information of samples because of the single species of the chromophore it maps. To overcome these drawbacks and take advantage of the merits of the two independent techniques, we built a dual-modality system by combining a NIRS system and a TAT system to image biological tissues. A series of phantom trials were carried out to demonstrate the performance of the new system. The spatial resolution is about 1 mm, with a penetration depth of at least 17.5 mm in the human subject. A cohort of five healthy subjects was recruited to conduct real-time forearm venous and arterial cuff occlusion experiments. Numerous results showed that this dual-modality system could measure oxygen metabolism and simultaneously provide anatomical structure changes of biological tissues. We also found that although the hemoglobin concentration varied consistently with many other published papers, the TAT signal intensity of veins showed an opposite variation tendency in the venous occlusion stage compared with other existing work. A detailed explanation is given to account for the discrepancy, thus, providing another possibility for the forearm experiments using TAT. Furthermore, based on the multiple types of information afforded by this dual-modality system, a pilot clinical application for the diagnosis of anemia is discussed.
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Affiliation(s)
- L Su
- School of Electronic Science and Engineering, University of Electronic Science and Technology of China, No. 2006, Xiyuan Avenue, 611731 Chengdu, China
| | - S Z Xu
- School of Electronic Science and Engineering, University of Electronic Science and Technology of China, No. 2006, Xiyuan Avenue, 611731 Chengdu, China
| | - Y X Huang
- School of Physics, University of Electronic Science and Technology of China, No. 2006, Xiyuan Avenue, 611731 Chengdu, China
| | - Q Wu
- School of Electronic Science and Engineering, University of Electronic Science and Technology of China, No. 2006, Xiyuan Avenue, 611731 Chengdu, China
| | - Z W Hou
- School of Electronic Science and Engineering, University of Electronic Science and Technology of China, No. 2006, Xiyuan Avenue, 611731 Chengdu, China
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Yue Y, Chen Y, Du X, Jin Y, Hu M, Jiang X, Wang C, Chen Z, Su L, Chen C, Jiang S, Tuo X. A survey of a COVID-19 cluster of charter flight importation. Public Health 2021; 199:107-109. [PMID: 34601152 PMCID: PMC8435375 DOI: 10.1016/j.puhe.2021.09.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2021] [Accepted: 09/03/2021] [Indexed: 12/23/2022]
Abstract
OBJECTIVES Although a number of cases of importation with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection have been reported, there are still no data available concerning the characteristics in the coronavirus disease 2019 (COVID-19) cluster of charter flight importation. Here, we provide an analysis of COVID-19 cases and their close contacts who worked for the same company on a project in Karbala, Iraq, and returned back to Chengdu, China, by a charter flight. METHODS The data of imported COVID-19 cases and their close contacts were obtained from National Notifiable Disease Report System of Chinese Center for Disease Control and Prevention and field epidemiological investigation reports by Centers for Disease Control and Prevention (CDCs) in Chengdu. The information of general characteristics and laboratory findings of this cluster were collected and summarized. RESULTS One hundred and six (66.67%) of 159 charter flight passengers tested positive for COVID-19 before entry. Through treatment, all 159 people tested negative and meet the requirements of taking flights bound for China before boarding. However, there has been still 36 (22.64%) of them tested positive after entry. The median time from entry to confirmation was 1.0 day (Interquartile Range (IQR): 0-4.3). The Cycle threshold value (Ct value) of 36 patients' positive samples are all above 30 and most values are above 35. CONCLUSIONS In conclusion, there is still a risk that a number of COVID-19 cases can be imported through charter flight. However, the infectivity of confirmed patients of the charter flight was considered to be low.
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Affiliation(s)
- Y Yue
- Chengdu Workstation for Emerging Infectious Disease Control and Prevention, Chinese Academy of Medical Sciences, Chengdu, Sichuan, 610000, PR China; Chengdu Center for Disease Control and Prevention, Chengdu, Sichuan, 610000, PR China
| | - Y Chen
- Chengdu Workstation for Emerging Infectious Disease Control and Prevention, Chinese Academy of Medical Sciences, Chengdu, Sichuan, 610000, PR China; Chengdu Center for Disease Control and Prevention, Chengdu, Sichuan, 610000, PR China
| | - X Du
- Chengdu Workstation for Emerging Infectious Disease Control and Prevention, Chinese Academy of Medical Sciences, Chengdu, Sichuan, 610000, PR China; Chengdu Center for Disease Control and Prevention, Chengdu, Sichuan, 610000, PR China
| | - Y Jin
- Chengdu Workstation for Emerging Infectious Disease Control and Prevention, Chinese Academy of Medical Sciences, Chengdu, Sichuan, 610000, PR China; Dayi County Center for Disease Control and Prevention, Chengdu, Sichuan, 610000, PR China
| | - M Hu
- Chengdu Workstation for Emerging Infectious Disease Control and Prevention, Chinese Academy of Medical Sciences, Chengdu, Sichuan, 610000, PR China; Chengdu Center for Disease Control and Prevention, Chengdu, Sichuan, 610000, PR China
| | - X Jiang
- Chengdu Workstation for Emerging Infectious Disease Control and Prevention, Chinese Academy of Medical Sciences, Chengdu, Sichuan, 610000, PR China; Chengdu Center for Disease Control and Prevention, Chengdu, Sichuan, 610000, PR China
| | - C Wang
- Chengdu Workstation for Emerging Infectious Disease Control and Prevention, Chinese Academy of Medical Sciences, Chengdu, Sichuan, 610000, PR China; Chengdu Center for Disease Control and Prevention, Chengdu, Sichuan, 610000, PR China
| | - Z Chen
- Chengdu Workstation for Emerging Infectious Disease Control and Prevention, Chinese Academy of Medical Sciences, Chengdu, Sichuan, 610000, PR China; Chengdu Center for Disease Control and Prevention, Chengdu, Sichuan, 610000, PR China
| | - L Su
- Chengdu Workstation for Emerging Infectious Disease Control and Prevention, Chinese Academy of Medical Sciences, Chengdu, Sichuan, 610000, PR China; Chengdu Center for Disease Control and Prevention, Chengdu, Sichuan, 610000, PR China
| | - C Chen
- Chengdu Workstation for Emerging Infectious Disease Control and Prevention, Chinese Academy of Medical Sciences, Chengdu, Sichuan, 610000, PR China; Chengdu Center for Disease Control and Prevention, Chengdu, Sichuan, 610000, PR China
| | - S Jiang
- Chengdu Workstation for Emerging Infectious Disease Control and Prevention, Chinese Academy of Medical Sciences, Chengdu, Sichuan, 610000, PR China; Chengdu Center for Disease Control and Prevention, Chengdu, Sichuan, 610000, PR China
| | - X Tuo
- Chengdu Workstation for Emerging Infectious Disease Control and Prevention, Chinese Academy of Medical Sciences, Chengdu, Sichuan, 610000, PR China; Chengdu Center for Disease Control and Prevention, Chengdu, Sichuan, 610000, PR China.
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Zhang Y, Su L, Chen Y, Yu S, Zhang D, Mao H, Fang L. Etiology and clinical characteristics of SARS-CoV-2 and other human coronaviruses among children in Zhejiang Province, China 2017-2019. Virol J 2021; 18:89. [PMID: 33931105 PMCID: PMC8085659 DOI: 10.1186/s12985-021-01562-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2021] [Accepted: 04/21/2021] [Indexed: 01/20/2023] Open
Abstract
BACKGROUND A novel coronavirus (SARS-CoV-2) emerging has put global public health institutes on high alert. Little is known about the epidemiology and clinical characteristics of human coronaviruses infections in relation to infections with other respiratory viruses. METHODS From February 2017 to December 2019, 3660 respiratory samples submitted to Zhejiang Children Hospital with acute respiratory symptoms were tested for four human coronaviruses RNA by a novel two-tube multiplex reverse transcription polymerase chain reaction assays. Samples were also screened for the occurrence of SARS-CoV-2 by reverse transcription-PCR analysis. RESULTS Coronavirus RNAs were detected in 144 (3.93%) specimens: HCoV-HKU1 in 38 specimens, HCoV-NL63 in 62 specimens, HCoV-OC43 in 38 specimens and HCoV-229E in 8 specimens. Genomes for SARS-CoV-2 were absent in all specimens by RT-PCR analysis during the study period. The majority of HCoV infections occurred during fall months. No significant differences in gender, sample type, year were seen across species. 37.5 to 52.6% of coronaviruses detected were in specimens testing positive for other respiratory viruses. Phylogenic analysis identified that Zhejiang coronaviruses belong to multiple lineages of the coronaviruses circulating in other countries and areas. CONCLUSION Common HCoVs may have annual peaks of circulation in fall months in the Zhejiang province, China. Genetic relatedness to the coronaviruses in other regions suggests further surveillance on human coronaviruses in clinical samples are clearly needed to understand their patterns of activity and role in the emergence of novel coronaviruses.
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Affiliation(s)
- Yanjun Zhang
- Department of Laboratory, School of Medical Technology, Zhejiang Chinese Medical University, Hangzhou, 310053, China.,Zhejiang Provincial Center of Disease Control and Prevention, 3399 Bincheng Road, Hangzhou, 310051, China
| | - Lingxuan Su
- Department of Laboratory, School of Medical Technology, Zhejiang Chinese Medical University, Hangzhou, 310053, China
| | - Yin Chen
- Zhejiang Provincial Center of Disease Control and Prevention, 3399 Bincheng Road, Hangzhou, 310051, China
| | - Sicong Yu
- Department of Laboratory, School of Medical Technology, Zhejiang Chinese Medical University, Hangzhou, 310053, China
| | - Dan Zhang
- Department of Laboratory Medicine, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310000, China
| | - Haiyan Mao
- Zhejiang Provincial Center of Disease Control and Prevention, 3399 Bincheng Road, Hangzhou, 310051, China
| | - Lei Fang
- Zhejiang Provincial Center of Disease Control and Prevention, 3399 Bincheng Road, Hangzhou, 310051, China.
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Diao TX, Zhang JL, Chen NS, Ma X, Yu LS, Zheng HW, Jing YY, Han L, Wang YX, Su L, Wang L, Li XS. [The correlation between age-related hearing loss and cognitive impairment]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2021; 56:187-192. [PMID: 33557494 DOI: 10.3760/cma.j.cn115330-20200314-00195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Affiliation(s)
- T X Diao
- Department of Otorhinolaryngology, Peking University People's Hospital, Beijing 100044, China
| | - J L Zhang
- Department of Otorhinolaryngology, Peking University People's Hospital, Beijing 100044, China
| | - N S Chen
- Department of Otorhinolaryngology, Peking University People's Hospital, Beijing 100044, China
| | - X Ma
- Department of Otorhinolaryngology, Peking University People's Hospital, Beijing 100044, China
| | - L S Yu
- Department of Otorhinolaryngology, Peking University People's Hospital, Beijing 100044, China
| | - H W Zheng
- Department of Otorhinolaryngology, Peking University People's Hospital, Beijing 100044, China
| | - Y Y Jing
- Department of Otorhinolaryngology, Peking University People's Hospital, Beijing 100044, China
| | - L Han
- Department of Otorhinolaryngology, Peking University People's Hospital, Beijing 100044, China
| | - Y X Wang
- Department of Otorhinolaryngology, Peking University People's Hospital, Beijing 100044, China
| | - L Su
- Department of Otorhinolaryngology, Peking University People's Hospital, Beijing 100044, China
| | - L Wang
- Department of Otorhinolaryngology, Peking University People's Hospital, Beijing 100044, China
| | - X S Li
- Department of Otorhinolaryngology, Peking University People's Hospital, Beijing 100044, China
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Wu MW, Su L, He F, Xu X. Differential Expression of Integrin β1 in Two Brain Injury Models of Rats. Fa Yi Xue Za Zhi 2020; 36:502-506. [PMID: 33047534 DOI: 10.12116/j.issn.1004-5619.2020.04.014] [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] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Indexed: 11/30/2022]
Abstract
Abstract Objective To study the characteristics of positive expression of integrin β1 in the rat brain tissue of two kinds of traumatic brain injury models and to explore the feasibility of inferring the mode of traumatic brain injury using the positive expression of integrin β1. Methods The occipital region of rats was hit by hydraulic impact method and pendulum striking method to produce two closed brain injury models of linear and rotation acceleration respectively, then 120 SD rats were randomly divided into linear acceleration injury group, rotation acceleration injury group, sham operation group and normal control group. Immunohistochemistry staining and Western blotting method were used to detect the positive expression of integrin β1 in different parts of the brain tissue at 30 min, 3 h, 6 h, 12 h, 3 d and 7 d after rat injury. The data was processed statistically by SPSS 18.0 software. Results The positive expression of integrin β1 was detected 30 min after brain injury and reached the peak 6 h after brain injury. With the extension of injury time, the expression tended to enhance. At the same time points after injury, the differences in the positive expression of integrin β1 between the linear acceleration injury group and the rotation acceleration injury group in the occipital strike point and thalamus had no statistical significance ( P>0.05), but the differences in the expression of integrin β1 in the frontal lobe and brain stem had statistical significance (P<0.05). Conclusion The characteristics of positive expression of integrin β1 in brain tissue can be used to infer the strike point and the manner of injury and has application value for the reconstruction of craniocerebral injury process.
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Affiliation(s)
- M W Wu
- School of Forensic Medicine, Wannan Medical College, Wuhu 241002, Anhui Province, China
| | - L Su
- School of Forensic Medicine, Wannan Medical College, Wuhu 241002, Anhui Province, China
| | - F He
- School of Forensic Medicine, Wannan Medical College, Wuhu 241002, Anhui Province, China
| | - X Xu
- School of Forensic Medicine, Wannan Medical College, Wuhu 241002, Anhui Province, China
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Lin Y, Su L, Liu Y, Sun G, Wooley K. Delocalization of Hydrophobicity using Random/Statistical Copolymers: A Facile Tactic towards Developing High-performance X-ray Contrast Media for Real-time Image-guided Radiation Therapy. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.1600] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Lin Y, Xu J, Li X, Sheng H, Su L, Wu M, Cheng J, Huang Y, Mao X, Zhou Z, Zhang W, Li C, Cai Y, Wu D, Lu Z, Yin X, Zeng C, Liu L. Novel variants and uncommon cases among southern Chinese children with X-linked hypophosphatemia. J Endocrinol Invest 2020; 43:1577-1590. [PMID: 32253725 DOI: 10.1007/s40618-020-01240-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Accepted: 03/24/2020] [Indexed: 12/17/2022]
Abstract
PURPOSE X-linked hypophosphatemia (XLH) is the most common inherited renal phosphate wasting disorder and is often misdiagnosed as vitamin D deficiency. This study aims to provide clinical and mutational characteristics of 65 XLH pediatric patients in southern China. METHODS In this work, a combination of DNA sequencing and qPCR analysis was used to study the PHEX gene in 80 pediatric patients diagnosed with hypophosphatemia. The clinical and laboratory data of confirmed 65 XLH patients were assessed and analyzed retrospectively. RESULTS In 65 XLH patients from 61 families, 51 different variants in the PHEX gene were identified, including 23 previously reported variants and 28 novel variants. In this cohort of XLH patients, the c.1601C>T(p.Pro534Leu) variant appears more frequently. Fourteen uncommon XLH cases were described, including four boys with de novo mosaic variants, eight patients with large deletions and a pair of monozygotic twins. The clinical manifestations in this cohort are very similar to those previously reported. CONCLUSION This study extends the mutational spectrum of the PHEX gene, which will contribute to accurate diagnosis. This study also suggests a supplementary qPCR or MLPA assay may be performed along with classical sequencing to confirm the gross insertion/deletion.
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Affiliation(s)
- Y Lin
- Department of Genetics and Endocrinology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, 9 Jinsui Rd., Guangzhou, 510623, China
| | - J Xu
- Department of Genetics and Endocrinology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, 9 Jinsui Rd., Guangzhou, 510623, China
| | - X Li
- Department of Genetics and Endocrinology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, 9 Jinsui Rd., Guangzhou, 510623, China
| | - H Sheng
- Department of Genetics and Endocrinology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, 9 Jinsui Rd., Guangzhou, 510623, China
| | - L Su
- Department of Genetics and Endocrinology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, 9 Jinsui Rd., Guangzhou, 510623, China
| | - M Wu
- Department of Genetics and Endocrinology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, 9 Jinsui Rd., Guangzhou, 510623, China
| | - J Cheng
- Department of Genetics and Endocrinology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, 9 Jinsui Rd., Guangzhou, 510623, China
| | - Y Huang
- Department of Genetics and Endocrinology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, 9 Jinsui Rd., Guangzhou, 510623, China
| | - X Mao
- Department of Genetics and Endocrinology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, 9 Jinsui Rd., Guangzhou, 510623, China
| | - Z Zhou
- Department of Genetics and Endocrinology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, 9 Jinsui Rd., Guangzhou, 510623, China
| | - W Zhang
- Department of Genetics and Endocrinology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, 9 Jinsui Rd., Guangzhou, 510623, China
| | - C Li
- Department of Genetics and Endocrinology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, 9 Jinsui Rd., Guangzhou, 510623, China
| | - Y Cai
- Department of Genetics and Endocrinology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, 9 Jinsui Rd., Guangzhou, 510623, China
| | - D Wu
- Department of Genetics and Endocrinology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, 9 Jinsui Rd., Guangzhou, 510623, China
| | - Z Lu
- Department of Genetics and Endocrinology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, 9 Jinsui Rd., Guangzhou, 510623, China
| | - X Yin
- Department of Genetics and Endocrinology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, 9 Jinsui Rd., Guangzhou, 510623, China
| | - C Zeng
- Department of Genetics and Endocrinology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, 9 Jinsui Rd., Guangzhou, 510623, China.
| | - L Liu
- Department of Genetics and Endocrinology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, 9 Jinsui Rd., Guangzhou, 510623, China.
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Xu YY, Liu H, Su L, Xu N, Xu DH, Liu HY, Spaner D, Bed-David Y, Li YJ. PPARγ inhibits breast cancer progression by upregulating PTPRF expression. Eur Rev Med Pharmacol Sci 2020; 23:9965-9977. [PMID: 31799666 DOI: 10.26355/eurrev_201911_19563] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE Peroxisome proliferator-activated receptor γ (PPARγ) regulates fatty acid storage and glucose metabolism. Recently, PPARγ has been reported to be involved in cancer. The present study reported a PPARγ consensus binding site (AGGTCA) in the ptprf promoter and identified a strong association between PPARγ and PTPRF expression, as well as their tumor suppressor roles in a v-Ha-Ras-induced model of breast cancer. MATERIALS AND METHODS The prognostic potential of PPARγ was assessed with a KM analysis of raw data from 3,951 breast cancer patients. The expression of PPARγ and PTPRF in the rat breast cancer cell lines was detected by Western blot and qPCR. The impact of PPARγ on cancer cell migration, invasion, and growth was confirmed using cell migration assay, transwell cell invasion assay, tri-dimensional soft agar culture, respectively. The binding of PPARγ with the ptprf promoter was then examined using electrophoretic mobility shift assay. The inhibitory effect of PPARγ on tumor growth was then examined in mouse tumor model in vivo. RESULTS It was identified that PPARγ expression is lost in the aggressive v-Ha-Ras-induced breast cancer cell line FE1.2 but highly expressed in less malignant FE1.3 cells. Exogenous expression of PPARγ in FE1.2 cells (FE1.2-PPARγhi) resulted in a marked inhibition of proliferation compared with that in FE1.2-Vector control group. FE1.2-PPARγhi cells also exhibited reduced migration, invasion, and colony formation abilities compared with those of the controls. The PPARγ agonist rosiglitazone also suppressed the malignant properties of FE1.2 cells. Protein tyrosine phosphatase receptor F (PTPRF), a downstream target of PPARγ, was markedly induced in FE1.2-PPARγhi cells. A PPARγ consensus binding site (AGGTCA) was identified in the ptprf promoter, and an electrophoretic mobility shift assay confirmed that PPARγ bind to this promoter. Similar to the effect of vector-mediated overexpression of PPARγ, ectopic overexpression of PTPRF in FE1.2 cells led to reduced proliferation. Furthermore, a PPARγ antagonist (GW9662) and PTP inhibitor (NSC87877) abrogated the suppressive function of PPARγ and PTPRF in FE1.2 cells, respectively. PPARγ overexpression or activation suppressed the progression and distant organ metastasis of breast cancer cells in a NOD/SCID mouse model. CONCLUSIONS These results suggest that PPARγ inhibits tumor cell proliferation, at least in part, through direct regulation of the ptprf gene and that PPARγ is a potential target for breast cancer treatment.
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Affiliation(s)
- Y-Y Xu
- Department of Human Anatomy, Basic College of Medical Sciences, Jilin University, Changchun, Jilin, P.R., China.
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Su L, Li X, Yan C, Yang Y. 966P Activation of the Wnt/PCP signaling pathway is an adverse prognostic predictor in patients with low grade glioma (LGG). Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.08.1081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Xu YJ, Wang Q, Su L, Dai XY, Zhu XY. Analysis of Scores of SCL-90 of Patients with Traumatic Subdural Effusion. Fa Yi Xue Za Zhi 2020; 36:223-228. [PMID: 32530171 DOI: 10.12116/j.issn.1004-5619.2020.02.014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Indexed: 11/30/2022]
Abstract
Abstract Objective To investigate the factors affecting changes of Symptom Check List-90 (SCL-90) of patients with traumatic subdural effusion. Methods One hundred and forty-two cases of patients with traumatic subdural effusion from the Center of Forensic Identification, Wannan Medical College collected from 2007-2018 were tested with SCL-90. The differences between SCL-90 results and the national norm and the influences of gender, age, education level, the number of effusion sites and location on SCL-90 results were analyzed. Results The differences between the scores of somatization, interpersonal sensitivity, depression, anxiety, hostility, terror, paranoia and psychosis factors and total mean scores in SCL-90 of traumatic subdural effusion and that of the national norm had statistical significance (P<0.05). The differences in depression and hostility factor scores between males and females had statistical significance (P<0.05). The differences in compulsion, anxiety and terror factor scores and total mean scores among different age groups had statistical significance (P<0.05). The differences in hostility, paranoia and psychosis factors among patients with different degrees of education had statistical significance (P<0.05). The differences in depression, anxiety, hostility and terror factor scores and total mean scores among single-site group, double-site group and multi-site group had statistical significance (P<0.05). The differences in somatization, depression and anxiety factor scores and total mean scores between the right cerebral hemisphere group and the left cerebral hemisphere group and bilateral hemisphere group had statistical significance (P<0.05). Conclusion Traumatic subdural effusion can cause certain psychological changes, which are related to the primary trauma of arachnoid tear as well as the number and location of effusion sites. Attention should be paid to the influence of the above factors during the assessment of psychological symptoms.
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Affiliation(s)
- Y J Xu
- Department of Psychology, Wannan Medical College, Wuhu 241002, Anhui Province, China.,School of Forensic Medicine, Wannan Medical College, Wuhu 241002, Anhui Province, China
| | - Q Wang
- School of Forensic Medicine, Wannan Medical College, Wuhu 241002, Anhui Province, China
| | - L Su
- School of Forensic Medicine, Wannan Medical College, Wuhu 241002, Anhui Province, China
| | - X Y Dai
- Yijishan Hospital of Wannan Medical College, Wuhu 241001, Anhui Province, China
| | - X Y Zhu
- School of Forensic Medicine, Wannan Medical College, Wuhu 241002, Anhui Province, China
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Mcdonald S, Yiu S, Su L, Gordon C, Solomons N, Bruce IN. SAT0186 DEVELOPING PREDICTORS OF GLOBAL BILAG TREATMENT RESPONSE IN PATIENTS WITH LUPUS NEPHRITIS: MORE LESSONS FROM THE ASPREVA LUPUS MANAGEMENT STUDY GROUP (ALMS) DATA. Ann Rheum Dis 2020. [DOI: 10.1136/annrheumdis-2020-eular.1728] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Background:Lupus Nephritis (LN) occurs in up to 60% of patients with SLE and is often associated with other organ involvement, morbidity and mortality. Treatment response and clinical improvement rates are limited with conventional therapy. Little is known about clinical predictors of response in SLE overall or in LN.The ALMS induction trial compared mycophenolate mofetil (MMF) to IV cyclophosphamide (CYC) as induction for LN. MMF was deemed non-superior. The ALMS maintenance trial randomised responders to induction treatment at 6 months to MMF or Azathioprine, with MMF superior during follow-up.Objectives:To identify predictors of overall clinical response at 6 and 12 months, in a cohort of SLE patients with LN.Methods:Using the ALMS trial cohort, we analysed predictors of response in all the patients as a single cohort. ‘Classic’ BILAG scores were used to assess organ responses over time. Endpoints analysed were:1) Improvement: defined as reduction in BILAG score to ≤ one BILAG B and no new BILAG organ domains involved, no increase in steroids from baseline and no increase in SLEDAI from baseline.2) Major Clinical Response (MCR): defined as reduction in BILAG score to BILAG C in all domains, a reduction in steroid dose to ≤ 7.5mg daily and a SLEDAI score ≤ 4.Potential predictors examined included baseline demographics, medication, disease activity (BILAG, SLEDAI), SLICC/ACR damage index (SDI) and serology. Univariate logistic regressions were used to provide odds ratios of predictors. Multivariate logistic regressions with LASSO and cross-validation in randomly split samples were utilised to build prediction models. Predictors were ranked by the percentage of times they were selected by LASSO.Results:370 patients enrolled in the ALMS induction trial. 227 patients were randomised at 6 months to maintenance. 313(84.59%) patients were female. 147(39.72%) patients were Caucasian. The mean age was 31.9 years. 236(63.78%) patients had a disease duration of LN of < 1 year. Baseline mean(± SD) SLEDAI score was 15.28 (±6.78) and mean(± SD) numerical BILAG score was 19.61(±7.67).Improvement at 6 months was attained by 180 (48.65%). Predictors included older age (OR=1.03 [95% CI: 1.01,1.05] per year) and normal haemoglobin (OR=1.90 [95% CI: 1.19, 3.05] vs low hb). Activity (BILAG A or B) in haematological and mucocutaneous domains predicted less improvement (OR [95% CI] = 0.59 [95% CI: 0.38, 0.94] and 0.50 [95% CI: 0.31,0.82] respectively). Baseline damage (SDI >1) negatively predicted improvement (OR 0.54 [95% CI: 0.31,0.92]).Improvement at 12 months was acheived by 139 (37.57%). Low IgG predicted improvement (OR 4.66 [95% CI: 1.34,16.23]. Black US patients were less likely to improve (OR 0.29 [95% CI: 0.06,0.90] vs Asian patients).MCR was achieved by 14(3.79%) and 40(10.81%) at 6 and 12 months. We found regional and racial differences in 12-month MCR responses (Figure 1). Baseline normal C4 predicted a decreased likelihood of MCR (OR 0.37 [95% CI: 0.17,0.64] vs normal C4).Figure 1.Univariate analysis of Improvement at 6 and 12 months and MCR at 12 months.Results of multivariate logistic regression with LASSO were consistent with the univariate analyses.Conclusion:A number of factors were related to improvement and MCR in conventionally treated LN patients. Those with damage and active non-renal disease were less likely to improve at 6 months. Baseline low C4 increased MCR likelihood at 12 months. These factors may help stratify patients based on likelihood of response and help select patients who may need alternative treatment strategies.Disclosure of Interests:Stephen McDonald: None declared, Sean Yiu: None declared, Li Su: None declared, Caroline Gordon Grant/research support from: UCB, Consultant of: UCB, BMS, EMD Serono, Speakers bureau: UCB, Neil Solomons Shareholder of: Aurinia Pharmaceuticals, Inc. stock, Employee of: Employed currently by Aurinia PharmaceuticalsPrevious employee of Aspreva Pharmaceuticals, Ian N. Bruce Grant/research support from: Genzyme Sanofi, GSK, and UCB, Consultant of: Eli Lilly, AstraZeneca, UCB, Iltoo, and Merck Serono, Speakers bureau: UCB
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Whitacre DC, Peters CJ, Sureau C, Nio K, Li F, Su L, Jones JE, Isogawa M, Sallberg M, Frelin L, Peterson DL, Milich DR. Designing a therapeutic hepatitis B vaccine to circumvent immune tolerance. Hum Vaccin Immunother 2019; 16:251-268. [PMID: 31809638 PMCID: PMC7062423 DOI: 10.1080/21645515.2019.1689745] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [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] [Indexed: 02/06/2023] Open
Abstract
An effective prophylactic hepatitis B virus (HBV) vaccine has long been available but is ineffective for chronic infection. The primary cause of chronic hepatitis B (CHB) and greatest impediment for a therapeutic vaccine is the direct and indirect effects of immune tolerance to HBV antigens. The resulting defective CD4+/CD8+ T cell response, poor cytokine production, insufficient neutralizing antibody (nAb) and poor response to HBsAg vaccination characterize CHB infection. The objective of this study was to develop virus-like-particles (VLPs) that elicit nAb to prevent viral spread and prime CD4+/CD8+ T cells to eradicate intracellular HBV. Eight neutralizing B cell epitopes from the envelope PreS1 region were consolidated onto a species-variant of the HBV core protein, the woodchuck hepatitis core antigen (WHcAg). PreS1-specific B cell epitopes were chosen because of preferential expression on HBV virions. Because WHcAg and HBcAg are not crossreactive at the B cell level and only partially cross-reactive at the CD4+/CD8+ T cell level, CD4+ T cells specific for WHcAg-unique T cell sites can provide cognate T-B cell help for anti-PreS1 Ab production that is not curtailed by immune tolerance. Immunization of immune tolerant HBV transgenic (Tg) mice with PreS1-WHc VLPs elicited levels of high titer anti-PreS1 nAbs equivalent to wildtype mice. Passive transfer of PreS1 nAbs into human-liver chimeric mice prevented acute infection and cleared serum HBV from mice previously infected with HBV in a model of CHB. At the T cell level, PreS1-WHc VLPs and hybrid WHcAg/HBcAg DNA immunogens elicited HBcAg-specific CD4+ Th and CD8+ CTL responses.
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Affiliation(s)
- D C Whitacre
- Department of Immunology, VLP Biotech, Inc., JLABS San Diego, San Diego, CA, USA.,Department of Immunology, Vaccine Research Institute of San Diego, San Diego, CA, USA
| | - C J Peters
- Department of Immunology, VLP Biotech, Inc., JLABS San Diego, San Diego, CA, USA.,Department of Immunology, Vaccine Research Institute of San Diego, San Diego, CA, USA
| | - C Sureau
- Molecular Virology Laboratory, Institut National de la Transfusion Sanguine (INTS), Paris, France
| | - K Nio
- Graduate School of Medicine, Department of Gastroenterology, Kanazawa University, Kanazawa, Ishikawa, Japan
| | - F Li
- Lineberger Comprehensive Cancer Center, Department of Microbiology and Immunology, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - L Su
- Lineberger Comprehensive Cancer Center, Department of Microbiology and Immunology, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - J E Jones
- Department of Immunology, VLP Biotech, Inc., JLABS San Diego, San Diego, CA, USA
| | - M Isogawa
- Department of Virology and Liver Unit, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - M Sallberg
- Department of Laboratory Medicine, Division of Clinical Microbiology, F68, Karolinska Institutet, Karolinska University Hospital Huddinge, Stockhold, Sweden
| | - L Frelin
- Department of Laboratory Medicine, Division of Clinical Microbiology, F68, Karolinska Institutet, Karolinska University Hospital Huddinge, Stockhold, Sweden
| | - D L Peterson
- Department of Biochemistry and Molecular Biology, Virginia Commonwealth University, Richmond, VA, USA
| | - D R Milich
- Department of Immunology, VLP Biotech, Inc., JLABS San Diego, San Diego, CA, USA.,Department of Immunology, Vaccine Research Institute of San Diego, San Diego, CA, USA
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Sun Q, Niu ZX, Zheng HY, Su L, Zhao JF, Sun ML. [Preliminary study on the elimination of artifacts of five kinds of dental prosthetic materials by energy spectrum CT multi-material artifact reduction technology]. Zhonghua Kou Qiang Yi Xue Za Zhi 2019; 54:760-764. [PMID: 31683383 DOI: 10.3760/cma.j.issn.1002-0098.2019.11.007] [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] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Objective: To investigate the effect of the multi-material artifact reduction (MMAR) algorithm of spectral CT in reducing the beam hardening artifacts in dental restoration material. Methods: Three-unit fixed bridge restorations were fabricated on the first to third molars in pig jaw. Gold alloy, zirconia, cobalt chromium alloy, nickel chromium alloy and pure titanium were used as materials for these fixed bridges. After restoration delivery, the pig jaw was scaned using energy spectrum CT machines. Images in regular 120 kVp scan mode were used as conventional group, and reconstructed single-energy horizontal images of 80, 90, 100, 110, 120, 130 and 140 keV in energy spectrum scanning mode were used as energy spectrum group, and reconstructed images applied MMAR technology in energy spectrum scanning mode were used as energy spectrum MMAR group. Each group was scanned 10 times to measure CT value and noise of muscles around dental prosthetic materials and adjacent non-artifact layers. Artifact index was calculated. Two radiologists scored the image quality of each group subjectively. Kruskal Wallis rank sum test was used to compare the difference of image noise, artifact index and subjective score among the control group and the best keV condition in the energy spectrum group and the energy spectrum MMAR group. Results: The image noise of energy spectrum group and energy spectrum MMAR group decreased gradually with the increase of single energy level. The artifact index of pure titanium restorations in conventional group, energy spectrum group and energy spectrum MMAR group were 71.0±8.0, 21.4±2.7 and 14.7±2.7 respectively, and these values were significantly lower than those of other materials in the same group (P<0.05). The subjective image quality scores in energy spectrum MMAR group were as follows: 3.0±0.2 for gold alloy, 4.3±0.5 for zirconia, 3.0±0.4 for cobalt chromium alloy, 3.1±0.4 for cobalt chromium alloy, and 4.6±0.5 for pure titanium. These scores were significantly smaller than those in the conventional group (P<0.05). There was no significant difference in noise between energy spectrum group and energy spectrum MMAR group (P>0.05), and the noise values in energy spectrum group and energy spectrum MMAR group were significantly lower than that in the conventional group (P<0.05). Conclusions: Artifacts of pure titanium is minimal. Energy spectrum CT combined with MMAR technology can effectively reduce the artifacts of gold, zirconia, cobalt-chromium alloy, nickel-titanium alloy and pure titanium. This technique can be used as an effective method to remove artifacts of dental prosthesis.
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Affiliation(s)
- Q Sun
- Department of Stomatology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Z X Niu
- Department of Stomatology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - H Y Zheng
- Department of Stomatology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - L Su
- Department of Radiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - J F Zhao
- Department of Stomatology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - M L Sun
- Department of Stomatology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
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Huang WJ, Wu SJ, Su L, Chen XY, Cai BN, Zhou JG, Lan RF, Fu GS, Xu L, Xiao FY, Wang SJ, Mao GY, Vijayaraman P, Ellenbogen K. P4528Feasibility and safety of left bundle branch area pacing by transvenous approach through the interventricular septum in patients with left bundle branch block. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz745.0921] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
His bundle pacing (HBP) has been shown to correct left bundle branch block (LBBB), however it often requires high pacing output and the success rate is variable.
Objective
To assess the feasibility and safety of left bundle branch area pacing (LBBAP) in patients with LBBB.
Methods
From Apr 2014 to Aug 2018, patients with LBBB from multicenters indicated for CRT or pacing therapy were included. LBBAP was performed by advancing the MDT 3830 lead deep into the septum about 1 cm distal to the His bundle region (Figure 1F). Pacing characteristics, success rate, threshold and R-wave amplitude were assessed.
Results
A total of 94 patients aged 68.3±10.7 y with the native QRS duration of 167.2±17.2 ms were included. In 92 patients, LBBAP was successfully achieved and demonstrated RBBB pattern during unipolar tip pacing (UTP), with the paced QRS duration of 116.4±12.6ms (Figure 1C). Fusion of LBBAP and native conduction via the RBB eliminated RBBB and resulted in an average QRS duration of 103.2±10.1 ms (Figure 1D). LBB potential could be recorded from the LBB lead during correction of LBBB by HBP in 21 patients who used two leads method (His lead and LBB lead, Figure 1B). Output dependent selective and non-selective LBBAP were demonstrated in 48 patients (Figure 1C, D). The LBB capture threshold by UTP was 0.53±0.18V/0.5ms at acute and 0.62±0.17V/0.5ms at 6 months and 0.65±0.2V/0.5ms at 1 year. The R-wave amplitude were 11.4±5.2mV, 12.4±5.8mV and 12.0±5.8mV at acute, 6 month and 1 year. During follow-up, only one patient had an increase in LBB capture threshold to 2.5V/0.5ms at 3 months and there were no other complications such as dislodgment, infections, embolism or stroke associated with the implantation.
Conclusion
Permanent LBBAP is feasible and safe in patients with LBBB.
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Affiliation(s)
- W J Huang
- The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - S J Wu
- The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - L Su
- The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - X Y Chen
- Zhongshan Hospital, Fudan University, Department of Cardiology, Shanghai, China
| | - B N Cai
- Xiamen Cardiovascular Hospital, Xiamen University, Xiamen, China
| | - J G Zhou
- The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - R F Lan
- Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical School, Nanjing, China
| | - G S Fu
- Sir Run Run Shaw Hospital affiliated to Medical College of Zhejiang University, Hangzhou, China
| | - L Xu
- The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - F Y Xiao
- The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - S J Wang
- The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - G Y Mao
- School of Environmental Science & Public Health, Wenzhou Medical University,, Wenzhou, China
| | - P Vijayaraman
- Virginia Commonwealth University, Richmond, United States of America
| | - K Ellenbogen
- Geisinger Heart Institute, Wilkes Barre, United States of America
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Li J, Su L. EP1.18-09 Analysis of the Role of Postoperative Radiotherapy in Pathological N2 Non-Small Cell Lung Cancer with Propensity Score Matching. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.2454] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Feng Y, Zhang M, Xing X, Chen W, Li W, Jia S, Su L, Yang Y. Investigation on gastric cancer susceptibility genes in Chinese early-onset diffuse gastric cancer. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz247.134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Su L, Huang WJ, Wu SJ. P6548Left bundle branch area pacing in patients with atrioventricular block. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz746.1138] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
The application of His bundle pacing (HBP) on patients with distal AV block should be of concern.Left bundle branch Aera pacing (LBBA pacing), pacing immediately beyond the site of block will be considered.
Purpose
To access the clinical benefits and safety of LBBA pacing in patients with atrioventricular (AV) block.
Methods
One hundred and thiry nine patients diagnosed with AVB were included. The Select Secure lead (model 3830; Medtronic) was used. Characteristics of LBB capture are summarized as following: 1) The paced QRS morphology of RBBB pattern during unipolar tip pacing; 2) Usually, LBB potential could be recorded; 3) If higher output pacing shortened the times abruptly and the times remain constant. Pacing parameters (threshold, R-wave amplitude and impedance) and Echocardiographic measurements were assessed during follow-up.
Results
All patients were success achieved LBBA pacing. The detailed baseline characteristic and follow-up were shown in the Table. Threshold, R-wave amplitude and impedance remained stable during follow -up. Echocardiographic measurements showed that LBB pacing did not affect the cardiac function. There was no LV septum penetration and dislodgment.
Conclusion
LBBA pacing had ideal pacing parameters and preserve cardiac function and may be an excellent alternative to HBP or RVP.
Acknowledgement/Funding
Key R&D Program of Zhejiang (2019C03012), Major Project of the Science and Technology of Wenzhou (ZS2017010)
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Affiliation(s)
- L Su
- The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - W J Huang
- The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - S J Wu
- The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
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