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Li LY, Li J, Li Y, Zhang W, Wang DY, Wang WL, Liang BY, Gu W. [Efficacy and safety of intravitreal dexamethasone implant in diabetic macular edema patients with and without prior vitrectomy: a retrospective cohort study]. Zhonghua Yan Ke Za Zhi 2023; 59:398-403. [PMID: 37151009 DOI: 10.3760/cma.j.cn112142-20220722-00355] [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: 05/09/2023]
Abstract
Objective: To evaluate the effectiveness and safety of intravitreal dexamethasone implant (IDI) in diabetic macular edema (DME) patients with and without prior vitrectomy. Methods: A retrospective cohort study was conducted on DME patients who received IDI treatment at the Aier Eye Hospital, Beijing from March 2018 to August 2020. Patients were divided into two groups according to whether they had undergone vitrectomy or not. Clinical and follow-up data, including best-corrected visual acuity (BCVA), intraocular pressure (IOP), central macular thickness (CMT), occurrence of ocular and systemic complications, and time to DME recurrence and retreatment, were collected before and after IDI injection at 15 days, 1, 2, 3, and 6 months. Statistical analyses were performed using t-test, Mann-Whitney U-test, χ2 test or Fisher's exact test, and generalized estimating equations. Results: Thirty-six patients (41 eyes) were included, with 19 patients (21 eyes) in the vitrectomy group and 17 patients (20 eyes) in the non-vitrectomy group. Compared with baseline, BCVA of eyes in the vitrectomy group was significantly improved at 15 days after IDI injection, with values of 1.00 (0.52, 1.31) and 0.61 (0.30, 1.00), respectively (Z=-2.10, P=0.036); BCVA of eyes in the non-vitrectomy group was significantly improved at 1 month after IDI injection, with values of 0.76 (0.60, 1.35) and 0.52 (0.10, 0.70), respectively (Z=-2.24, P=0.025). Compared with baseline, CMT of eyes in both groups was significantly reduced at all follow-up time points after 15 days of IDI injection (all P<0.05). In the vitrectomy group, CMT before and 15 days after injection were 487 (438, 661) μm and 389 (340, 553) μm, respectively (Z=-3.45, P<0.001); in the non-vitrectomy group, CMT before and 15 days after injection were 486 (410, 641) μm and 323 (290, 396) μm, respectively (Z=-4.07, P<0.001). There were no statistically significant differences in BCVA and CMT between the two groups at all follow-up time points (all P>0.05). The time to DME recurrence was 3.0 (3.0, 4.0) months in the vitrectomy group and 5.0 (4.0, 5.0) months in the non-vitrectomy group, with no significant difference between the two groups (P=0.675). Four eyes (19.0%) in the vitrectomy group and three eyes (15.0%) in the non-vitrectomy group had high IOP, with no significant difference (P=0.529). No severe ocular or systemic complications were observed in any patients. Conclusions: IDI treatment is safe and effective in DME patients with and without prior vitrectomy, with similar efficacy, but with faster onset of action in patients with prior vitrectomy. There was no significant difference in DME recurrence within 6 months after IDI injection between the two groups.
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Affiliation(s)
- L Y Li
- Beijing Aier Intech Eye Hospital, Aier School of Ophthalmology, Central South University, Beijing 100021, China
| | - J Li
- Beijing Aier Intech Eye Hospital, Aier School of Ophthalmology, Central South University, Beijing 100021, China
| | - Y Li
- Beijing Aier Intech Eye Hospital, Aier School of Ophthalmology, Central South University, Beijing 100021, China
| | - W Zhang
- Beijing Aier Intech Eye Hospital, Aier School of Ophthalmology, Central South University, Beijing 100021, China
| | - D Y Wang
- Beijing Aier Intech Eye Hospital, Aier School of Ophthalmology, Central South University, Beijing 100021, China
| | - W L Wang
- Beijing Aier Intech Eye Hospital, Aier School of Ophthalmology, Central South University, Beijing 100021, China
| | - B Y Liang
- Beijing Aier Intech Eye Hospital, Aier School of Ophthalmology, Central South University, Beijing 100021, China
| | - W Gu
- Beijing Aier Intech Eye Hospital, Aier School of Ophthalmology, Central South University, Beijing 100021, China
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Brioschi S, Belk JA, Peng V, Molgora M, Rodrigues PF, Nguyen KM, Wang S, Du S, Wang WL, Grajales-Reyes GE, Ponce JM, Yuede CM, Li Q, Baer JM, DeNardo DG, Gilfillan S, Cella M, Satpathy AT, Colonna M. A Cre-deleter specific for embryo-derived brain macrophages reveals distinct features of microglia and border macrophages. Immunity 2023; 56:1027-1045.e8. [PMID: 36791722 PMCID: PMC10175109 DOI: 10.1016/j.immuni.2023.01.028] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [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: 08/26/2022] [Revised: 11/27/2022] [Accepted: 01/27/2023] [Indexed: 02/16/2023]
Abstract
Genetic tools to target microglia specifically and efficiently from the early stages of embryonic development are lacking. We generated a constitutive Cre line controlled by the microglia signature gene Crybb1 that produced nearly complete recombination in embryonic brain macrophages (microglia and border-associated macrophages [BAMs]) by the perinatal period, with limited recombination in peripheral myeloid cells. Using this tool in combination with Flt3-Cre lineage tracer, single-cell RNA-sequencing analysis, and confocal imaging, we resolved embryonic-derived versus monocyte-derived BAMs in the mouse cortex. Deletion of the transcription factor SMAD4 in microglia and embryonic-derived BAMs using Crybb1-Cre caused a developmental arrest of microglia, which instead acquired a BAM specification signature. By contrast, the development of genuine BAMs remained unaffected. Our results reveal that SMAD4 drives a transcriptional and epigenetic program that is indispensable for the commitment of brain macrophages to the microglia fate and highlight Crybb1-Cre as a tool for targeting embryonic brain macrophages.
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Affiliation(s)
- Simone Brioschi
- Department of Pathology and Immunology, Washington University School of Medicine in Saint Louis, Saint Louis, MO, USA.
| | - Julia A Belk
- Department of Computer Science, Stanford University, Stanford, CA, USA; Gladstone-UCSF Institute of Genomic Immunology, San Francisco, CA, USA
| | - Vincent Peng
- Department of Pathology and Immunology, Washington University School of Medicine in Saint Louis, Saint Louis, MO, USA
| | - Martina Molgora
- Department of Pathology and Immunology, Washington University School of Medicine in Saint Louis, Saint Louis, MO, USA
| | - Patrick Fernandes Rodrigues
- Department of Pathology and Immunology, Washington University School of Medicine in Saint Louis, Saint Louis, MO, USA
| | - Khai M Nguyen
- Department of Pathology and Immunology, Washington University School of Medicine in Saint Louis, Saint Louis, MO, USA
| | - Shoutang Wang
- Department of Pathology and Immunology, Washington University School of Medicine in Saint Louis, Saint Louis, MO, USA
| | - Siling Du
- Department of Pathology and Immunology, Washington University School of Medicine in Saint Louis, Saint Louis, MO, USA
| | - Wei-Le Wang
- Department of Pathology and Immunology, Washington University School of Medicine in Saint Louis, Saint Louis, MO, USA
| | - Gary E Grajales-Reyes
- Department of Pathology and Immunology, Washington University School of Medicine in Saint Louis, Saint Louis, MO, USA
| | - Jennifer M Ponce
- McDonnell Genome Institute, Washington University School of Medicine in Saint Louis, Saint Louis, MO, USA
| | - Carla M Yuede
- Department of Psychiatry, Washington University School of Medicine in Saint Louis, Saint Louis, MO, USA
| | - Qingyun Li
- Department of Neuroscience, Washington University School of Medicine in Saint Louis, Saint Louis, MO, USA; Department of Genetics, Washington University School of Medicine in Saint Louis, Saint Louis, MO, USA
| | - John M Baer
- Department of Medicine, Washington University School of Medicine in Saint Louis, Saint Louis, MO, USA
| | - David G DeNardo
- Department of Pathology and Immunology, Washington University School of Medicine in Saint Louis, Saint Louis, MO, USA; Department of Medicine, Washington University School of Medicine in Saint Louis, Saint Louis, MO, USA; Siteman Cancer Center, Washington University School of Medicine in Saint Louis, Saint Louis, MO, USA
| | - Susan Gilfillan
- Department of Pathology and Immunology, Washington University School of Medicine in Saint Louis, Saint Louis, MO, USA
| | - Marina Cella
- Department of Pathology and Immunology, Washington University School of Medicine in Saint Louis, Saint Louis, MO, USA
| | - Ansuman T Satpathy
- Gladstone-UCSF Institute of Genomic Immunology, San Francisco, CA, USA; Department of Pathology, Stanford University, Stanford, CA, USA; Stanford Cancer Institute, Stanford University, Stanford, CA, USA; Parker Institute for Cancer Immunotherapy, Stanford University, Stanford, CA, USA
| | - Marco Colonna
- Department of Pathology and Immunology, Washington University School of Medicine in Saint Louis, Saint Louis, MO, USA.
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Wang WL, Wang P, Han YM, Wei KL, Zhao MY, He DZ. [Observation of the efficacy of autologous mucosal transplantation to prevent esophageal stricture after near-circumferential endoscopic submucosal dissection for early esophageal cancer]. Zhonghua Yi Xue Za Zhi 2023; 103:684-688. [PMID: 36858369 DOI: 10.3760/cma.j.cn112137-20220907-01894] [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: 03/03/2023]
Abstract
Objective: To investigate the efficacy of autologous mucosal transplantation to prevent esophageal stricture after near-circumferential endoscopic submucosal dissection (ESD) for early esophageal cancer. Methods: The case data of 33 patients, who underwent near-circumferential ESD for early esophageal cancer and were followed up regularly in the First Affiliated Hospital of Zhengzhou University from April 2017 to July 2022, were analyzed retrospectively, including 14 males and 19 females, aged (66.4±7.4) (47-77) years. According to the different treatment methods, they were divided into 4 groups: group A (6 cases) were treated with autologous mucosa transplantation and fully covered metal stent implantation, combined with oral, intravenous and local injection of hormone; Group B (8 cases) were treated with autologous mucosa transplantation and fully covered metal stent implantation; Group C (11 cases) were treated with fully covered metal stent implantation combined with oral or intravenous hormone; Group D (8 cases) were treated with fully covered metal stent implantation. After the operation, the growth of the transplanted mucosa, esophageal stricture and surgical complications were observed by endoscopy, so as to understand the efficacy of automucosa transplantation in preventing esophageal stricture after near-circumferential ESD for early esophageal cancer. Results: The gastroscopic operation was successful in 33 patients. The times of expansion in groups B, C and D were more than that in group A, and the times of expansion [M(Q1,Q3)] in group A were 0(0, 1.8) times, while the times of expansion in group B, C and D were 5.5(4.3, 6.8), 4.0(4.0, 7.0) and 5.5(3.5, 10.8) times, respectively, with statistical significance (all P<0.05). There was no significant difference in times of expansion among groups B, C and D (all P>0.05). The stent placement time [M(Q1,Q3)] in group B [7.5(6.3, 8.8) days] was shorter than that in group A [64.5(41.5, 75.5) days] (P=0.006). There was no significant difference in stent placement time between group C [38.0(28.0, 50.0) days] and group D [31.5(27.3, 66.3) days] and group A (both P>0.05). The stent placement time in group C was longer than that in group B (P<0.05).There was no significant difference in stent placement time between group B, C and D (all P>0.05). There was no significant difference in the incidence of complications among the groups (all P>0.05). Conclusions: Autologous mucosal transplantation is safe and effective in preventing stenosis after near-circumferential ESD for early esophageal cancer. The effect of autologous mucosal transplantation combined with fully covered metal stent placement, systemic and local steroid application in preventing esophageal stricture after near-circumferential ESD for early esophageal cancer is better than that of single application.
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Affiliation(s)
- W L Wang
- Department of Gastroenterology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - P Wang
- Department of Gastroenterology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Y M Han
- Department of Gastroenterology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - K L Wei
- Department of Gastroenterology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - M Y Zhao
- Department of Gastroenterology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - D Z He
- Department of Gastroenterology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
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Yu H, Wang WL, Zhang W, Bai XL, Liang TB. [Progress in perioperative management of ABO-incompatible pediatric liver transplantation]. Zhonghua Wai Ke Za Zhi 2023; 61:173-176. [PMID: 36720628 DOI: 10.3760/cma.j.cn112139-20220507-00206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
ABO incompatible(ABO-I) liver grafts will affect the prognosis of liver transplantation. With the improvement of perioperative treatment,including plasma exchange,rituximab,splenectomy,etc.,the prognosis of ABO-I liver transplantation has been greatly improved. Because children's immune systems are not fully developed,the perioperative management of ABO-I pediatric liver transplantation is significantly different from that of adults. Reducing the perioperative anti-donor ABO antibody titer is the key to the perioperative management of ABO-I liver transplantation. This article summarizes literatures on the perioperative management of ABO-I pediatric liver transplantation, including the perioperative anti-rejection regimen in pediatric recipients of different ages, splenectomy, postoperative monitoring and postoperative complications, etc.
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Affiliation(s)
- H Yu
- Liver Transplant Center,Department of Hepatic-Biliary-Pancreatic Surgery,the First Affiliated Hospital,Zhejiang University School of Medicine,Hangzhou 310003,China
| | - W L Wang
- Liver Transplant Center,Department of Hepatic-Biliary-Pancreatic Surgery,the First Affiliated Hospital,Zhejiang University School of Medicine,Hangzhou 310003,China
| | - W Zhang
- Liver Transplant Center,Department of Hepatic-Biliary-Pancreatic Surgery,the First Affiliated Hospital,Zhejiang University School of Medicine,Hangzhou 310003,China
| | - X L Bai
- Liver Transplant Center,Department of Hepatic-Biliary-Pancreatic Surgery,the First Affiliated Hospital,Zhejiang University School of Medicine,Hangzhou 310003,China
| | - T B Liang
- Liver Transplant Center,Department of Hepatic-Biliary-Pancreatic Surgery,the First Affiliated Hospital,Zhejiang University School of Medicine,Hangzhou 310003,China
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Chen HL, Zhang QQ, Xu H, Xiao JC, Wei N, Cui YF, Liu HT, Wang WL, Zu MH. [Comparison of clinical features of JAK2V617F gene mutation and non-mutation in patients with Budd-Chiari syndrome]. Zhonghua Gan Zang Bing Za Zhi 2022; 30:1365-1369. [PMID: 36891721 DOI: 10.3760/cma.j.cn501113-20210901-00443] [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: 03/10/2023]
Abstract
Objective: To investigate the clinical features of JAK2V617F gene mutation and non-mutation in patients with Budd-Chiari syndrome (BCS). Methods: 17 and 127 BCS cases with JAK2V617F gene mutation (mutation group) and non-gene mutation (non-mutation group) who were continuously treated with interventional therapy between January 2016 to December 2020 in the Affiliated Hospital of Xuzhou Medical University were selected as the research object for a comparative study. The hospitalization and follow-up data of the two groups were analyzed retrospectively, and the deadline for follow-up was June 2021. Quantitative data group differences were analyzed using the independent sample t-test and Wilcoxon rank sum test. Qualitative data group differences were analyzed with χ2 test or Fisher's exact test. Mann-Whitney U test was used to analyze the differences between groups in rank data. Kaplan-Meier method was used to calculate the patient survival and recurrence rate. Results: Age [(35.41±17.10) years vs. (50.09±14.16) years, t=3.915, P<0.001], time of onset (median duration: 3 months vs. 12 months), and the cumulative survival rate (65.5% vs 95.1%; χ2=5.21, P=0.022) were lower in mutation than non-mutation group. Aaspartate aminotransferase, alanine aminotransferase, prothrombin time, Child-Pugh score, Rotterdam score, Model for End-stage Liver Disease score, hepatic vein thrombosis incidence, and the cumulative recurrence rate after intervention were higher in mutation than non-mutation group. The above all indexes had statistically significant differences (P<0.05) between the groups. Conclusion: Younger age, acute onset, severe liver injury, high incidence of hepatic vein thrombosis, and poor prognosis are the features of patients with BCS with JAK2V617F gene mutation than non-mutation.
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Affiliation(s)
- H L Chen
- Department of Interventional Radiology, the Affiliated Hospital of Xuzhou Medical University, Xuzhou 221006, China
| | - Q Q Zhang
- Department of Interventional Radiology, the Affiliated Hospital of Xuzhou Medical University, Xuzhou 221006, China
| | - H Xu
- Department of Interventional Radiology, the Affiliated Hospital of Xuzhou Medical University, Xuzhou 221006, China
| | - J C Xiao
- Department of Interventional Radiology, the Affiliated Hospital of Xuzhou Medical University, Xuzhou 221006, China
| | - N Wei
- Department of Interventional Radiology, the Affiliated Hospital of Xuzhou Medical University, Xuzhou 221006, China
| | - Y F Cui
- Department of Interventional Radiology, the Affiliated Hospital of Xuzhou Medical University, Xuzhou 221006, China
| | - H T Liu
- Department of Interventional Radiology, the Affiliated Hospital of Xuzhou Medical University, Xuzhou 221006, China
| | - W L Wang
- Department of Interventional Radiology, the Affiliated Hospital of Xuzhou Medical University, Xuzhou 221006, China
| | - M H Zu
- Department of Interventional Radiology, the Affiliated Hospital of Xuzhou Medical University, Xuzhou 221006, China
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Wang WL, Kasamatsu J, Joshita S, Gilfillan S, Di Luccia B, Panda SK, Kim DH, Desai P, Bando JK, Huang SCC, Yomogida K, Hoshino H, Fukushima M, Jacobsen EA, Van Dyken SJ, Ruedl C, Cella M, Colonna M. The aryl hydrocarbon receptor instructs the immunomodulatory profile of a subset of Clec4a4 + eosinophils unique to the small intestine. Proc Natl Acad Sci U S A 2022; 119:e2204557119. [PMID: 35653568 PMCID: PMC9191779 DOI: 10.1073/pnas.2204557119] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Accepted: 04/10/2022] [Indexed: 11/18/2022] Open
Abstract
C-type lectin domain family 4, member a4 (Clec4a4) is a C-type lectin inhibitory receptor specific for glycans thought to be exclusively expressed on murine CD8α− conventional dendritic cells. Using newly generated Clec4a4-mCherry knock-in mice, we identify a subset of Clec4a4-expressing eosinophils uniquely localized in the small intestine lamina propria. Clec4a4+ eosinophils evinced an immunomodulatory signature, whereas Clec4a4− eosinophils manifested a proinflammatory profile. Clec4a4+ eosinophils expressed high levels of aryl hydrocarbon receptor (Ahr), which drove the expression of Clec4a4 as well as other immunomodulatory features, such as PD-L1. The abundance of Clec4a4+ eosinophils was dependent on dietary AHR ligands, increased with aging, and declined in inflammatory conditions. Mice lacking AHR in eosinophils expanded innate lymphoid cells of type 2 and cleared Nippostrongylus brasiliensis infection more effectively than did wild-type mice. These results highlight the heterogeneity of eosinophils in response to tissue cues and identify a unique AHR-dependent subset of eosinophils in the small intestine with an immunomodulatory profile.
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Affiliation(s)
- Wei-Le Wang
- Department of Pathology and Immunology, Washington University School of Medicine in Saint Louis, St. Louis, MO 63110
| | - Jun Kasamatsu
- Department of Pathology and Immunology, Washington University School of Medicine in Saint Louis, St. Louis, MO 63110
- Department of Intelligent Network for Infection Control, Tohoku University Graduate School of Medicine, 980-8575 Sendai, Japan
| | - Satoru Joshita
- Department of Pathology and Immunology, Washington University School of Medicine in Saint Louis, St. Louis, MO 63110
- Department of Medicine, Division of Gastroenterology and Hepatology, Shinshu University School of Medicine, 390-8621 Matsumoto, Japan
| | - Susan Gilfillan
- Department of Pathology and Immunology, Washington University School of Medicine in Saint Louis, St. Louis, MO 63110
| | - Blanda Di Luccia
- Department of Pathology and Immunology, Washington University School of Medicine in Saint Louis, St. Louis, MO 63110
| | - Santosh K. Panda
- Department of Pathology and Immunology, Washington University School of Medicine in Saint Louis, St. Louis, MO 63110
| | - Do-Hyun Kim
- Department of Pathology and Immunology, Washington University School of Medicine in Saint Louis, St. Louis, MO 63110
| | - Pritesh Desai
- Department of Medicine, Washington University School of Medicine in Saint Louis, St. Louis, MO 63110
| | - Jennifer K. Bando
- Department of Pathology and Immunology, Washington University School of Medicine in Saint Louis, St. Louis, MO 63110
- Department of Microbiology and Immunology, Stanford University School of Medicine, Stanford, CA 94305
| | - Stanley Ching-Cheng Huang
- Department of Pathology and Immunology, Washington University School of Medicine in Saint Louis, St. Louis, MO 63110
- Department of Pathology, Case Western Reserve University School of Medicine, Cleveland, OH 44106
| | - Kentaro Yomogida
- Department of Pathology and Immunology, Washington University School of Medicine in Saint Louis, St. Louis, MO 63110
| | - Hitomi Hoshino
- Department of Tumor Pathology, Faculty of Medical Sciences, University of Fukui, 910-1193 Eiheiji, Japan
| | - Mana Fukushima
- Department of Tumor Pathology, Faculty of Medical Sciences, University of Fukui, 910-1193 Eiheiji, Japan
| | - Elizabeth A. Jacobsen
- Division of Allergy, Asthma and Clinical Immunology, Mayo Clinic Arizona, Scottsdale, AZ 85259
| | - Steven J. Van Dyken
- Department of Pathology and Immunology, Washington University School of Medicine in Saint Louis, St. Louis, MO 63110
| | - Christiane Ruedl
- School of Biological Sciences, Nanyang Technological University, 637551 Singapore
| | - Marina Cella
- Department of Pathology and Immunology, Washington University School of Medicine in Saint Louis, St. Louis, MO 63110
| | - Marco Colonna
- Department of Pathology and Immunology, Washington University School of Medicine in Saint Louis, St. Louis, MO 63110
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Graham NM, Wang WL, Reyes E, Boldin MP. The role of microRNA-142 in B cell activation and effector functions. The Journal of Immunology 2022. [DOI: 10.4049/jimmunol.208.supp.168.02] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Abstract
Control of gene expression by microRNA (miRNA) has recently emerged as a critical mechanism that regulates B cell activation and function. However, the role of specific miRNAs in this process is unclear. Using germline knockout (KO) mice, we have previously shown that miR-142 ablation impairs humoral immune responses despite significant expansion of the B cell compartment, suggesting that miR-142 is critical for B cell effector function and terminal differentiation. To more precisely dissect the role of miR 142 in B cell effector responses, we developed an activated B cell-specific miR-142 KO mouse by breeding conditional miR-142 KO (miR-142fl/fl) mice with mice expressing Cre recombinase driven by activation-induced cytosine deaminase (AIDcre). To label activated B cells in miR-142fl/fl AIDcre mice, we bred them to mice carrying a loxP-flanked STOP cassette, allowing for the expression of fluorescent Zsgreen1 reporter protein in the presence of Cre recombinase. As expected, B cell development was largely unperturbed in miR-142fl/fl AIDcreZsgreen+/− mice. In contrast, FACS analysis of naive and antigen-challenged miR-142fl/fl AIDcre Zsgreen+/− mice revealed a significant decrease in germinal center (GC) B cells and plasma cells (PCs). RNA sequencing of GC B cells suggests dysregulation of transcription factor networks such as miR-142-3p targets BACH2 and IRF4 may contribute to the phenotypes observed in miR 142fl/fl AIDcre Zsgreen+/− mice. Future experiments will investigate molecular pathways governing terminal B cell differentiation and effector function in miR-142fl/fl AIDcre Zsgreen+/− mice, thereby elucidating the role of miR-142 in promoting a healthy response to antigen.
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Affiliation(s)
| | - Wei-Le Wang
- 2Department of Pathology and Immunology, Washington University in St Louis School of Medicine
| | | | - Mark P Boldin
- 1Systems Biology, City of Hope National Medical Center
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Jin PB, Wang WL, Zhang YT, Ma N, Bai XL, Zhang W, Liang TB. [Review of risk evaluation scores for benign end stage liver diseases recipients]. Zhonghua Wai Ke Za Zhi 2022; 60:397-401. [PMID: 35272432 DOI: 10.3760/cma.j.cn112139-20221216-00607] [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: 06/14/2023]
Abstract
Liver transplant is an unreplaceable method for benign end-stage liver disease. The risk evaluation for the waiting list recipients and for post-transplant survival could provide practical indication for organ allocation. In recent years, there are two major kinds of evaluation scores. The first kind of evaluation scores is based on model for end-stage liver disease(MELD) score,including SOFT/P-SOFT score,UCLA-FRS score and BAR score. The other evaluation system is based on the concept of acute-on-chronic liver failure,including CLIF-C-ACLF score,TAM score,AARC-ACLF score and COSSH-ACLF score. The scores based on ACLF have been shown superior power in predicting waiting list survival and post-transplant prognosis than MELD. This article reviews the two kinds of evaluation scores,aiming for the better allocation policy and the better prognosis of benign end-stage liver disease.
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Affiliation(s)
- P B Jin
- Department of Hepatic-biliary-pancreatic Surgery,First Affiliated Hospital of Zhejiang University,Hangzhou 310003,China
| | - W L Wang
- Department of Hepatic-biliary-pancreatic Surgery,First Affiliated Hospital of Zhejiang University,Hangzhou 310003,China
| | - Y T Zhang
- Department of Hepatic-biliary-pancreatic Surgery,First Affiliated Hospital of Zhejiang University,Hangzhou 310003,China
| | - N Ma
- Department of Hepatic-biliary-pancreatic Surgery,First Affiliated Hospital of Zhejiang University,Hangzhou 310003,China
| | - X L Bai
- Department of Hepatic-biliary-pancreatic Surgery,First Affiliated Hospital of Zhejiang University,Hangzhou 310003,China
| | - W Zhang
- Department of Hepatic-biliary-pancreatic Surgery,First Affiliated Hospital of Zhejiang University,Hangzhou 310003,China
| | - T B Liang
- Department of Hepatic-biliary-pancreatic Surgery,First Affiliated Hospital of Zhejiang University,Hangzhou 310003,China
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9
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Jin PB, Wang WL, Zhang YT, Ma N, Bai XL, Zhang W, Liang TB. [Review of risk evaluation scores for benign end stage liver diseases recipients]. Zhonghua Wai Ke Za Zhi 2022; 60:396-400. [PMID: 35381846 DOI: 10.3760/cma.j.cn112139-20211216-00607] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Liver transplant is an unreplaceable method for benign end-stage liver disease. The risk evaluation for the waiting list recipients and for post-transplant survival could provide practical indication for organ allocation. In recent years, there are two major kinds of evaluation scores. The first kind of evaluation scores is based on model for end-stage liver disease(MELD) score,including SOFT/P-SOFT score,UCLA-FRS score and BAR score. The other evaluation system is based on the concept of acute-on-chronic liver failure,including CLIF-C-ACLF score,TAM score,AARC-ACLF score and COSSH-ACLF score. The scores based on ACLF have been shown superior power in predicting waiting list survival and post-transplant prognosis than MELD. This article reviews the two kinds of evaluation scores,aiming for the better allocation policy and the better prognosis of benign end-stage liver disease.
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Affiliation(s)
- P B Jin
- Department of Hepatic-biliary-pancreatic Surgery,First Affiliated Hospital of Zhejiang University,Hangzhou 310003,China
| | - W L Wang
- Department of Hepatic-biliary-pancreatic Surgery,First Affiliated Hospital of Zhejiang University,Hangzhou 310003,China
| | - Y T Zhang
- Department of Hepatic-biliary-pancreatic Surgery,First Affiliated Hospital of Zhejiang University,Hangzhou 310003,China
| | - N Ma
- Department of Hepatic-biliary-pancreatic Surgery,First Affiliated Hospital of Zhejiang University,Hangzhou 310003,China
| | - X L Bai
- Department of Hepatic-biliary-pancreatic Surgery,First Affiliated Hospital of Zhejiang University,Hangzhou 310003,China
| | - W Zhang
- Department of Hepatic-biliary-pancreatic Surgery,First Affiliated Hospital of Zhejiang University,Hangzhou 310003,China
| | - T B Liang
- Department of Hepatic-biliary-pancreatic Surgery,First Affiliated Hospital of Zhejiang University,Hangzhou 310003,China
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Yang J, Shen SH, Wang WL, Wang YY, Liu JJ. Roxadustat Improves Psychological Stress and Life Quality of Patients with Uremia During Hemodialysis. INT J PHARMACOL 2022. [DOI: 10.3923/ijp.2022.527.533] [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: 11/15/2022]
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11
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Ni QH, Guo XJ, Yang SF, Wang WL, Xue GH, Zhao YP, Ye M, Zhang L. [Safety and efficacy of percutaneous mechanical thrombectomy through ipsilateral calf venous access in the treatment of entire-limb acute deep venous thrombosis]. Zhonghua Yi Xue Za Zhi 2022; 102:486-490. [PMID: 35184501 DOI: 10.3760/cma.j.cn112137-20210819-01886] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Objective: To evaluate the safety and clinical efficacy of percutaneous mechanical thrombectomy (PMT) through ipsilateral calf venous access in the treatment of entire-limb acute deep vein thrombosis (DVT). Methods: From July 2017 to August 2020, the clinical data of patients with entire-limb acute DVT at Renji Hospital, School of Medicine, Shanghai Jiaotong University treated by AngioJet through ipsilateral calf venous access were analyzed retrospectively. All patients received rivaroxaban or warfarin anticoagulant therapy for at least 6 months after operation. Pressure gradient socks were given routinely after operation. All patients were followed up at 3, 6, 12 months and every year after operation. The primary end points were the 12-month primary patency rate and the incidence of post thrombotic syndrome (PTS). The secondary end points included the thrombus clearance rate, total complication rate, bleeding complication rate and the 12-month incidence of moderate to severe PTS. Results: A total of 31 patients were included in the study. The age ranged from 31 to 80 (63±14) years, including 16 males and 15 females, 23 left lower limb DVT and 8 right lower limb DVT. There were 15 cases treated through peroneal venous access, 6 cases through anterior tibial venous access and 10 cases through posterior tibial venous access. Moreover, 9 cases underwent combined catheter-directed thrombolysis, 25 cases underwent iliac vein percutaneous transluminal angioplasty (PTA), and 10 cases underwent iliac vein stenting. The thrombus clearance rate was grade Ⅱ in 19 cases (61.3%) and grade Ⅲ in 12 cases (38.7%). One patient (3.2%) with anterior tibial venous access developed hematoma at the puncture site, which was improved after pressure bandage, and there were no other bleeding and serious complications. All the 31 patients were followed up for at least 12 months, with an average follow-up period of (22±9) months. The 12-month primary patency rate was 77.4% (24/31). The 12-month incidence of PTS was 16.1% (5/31) and the incidence of moderate to severe PTS was 3.2% (1/31). Conclusions: PMT through ipsilateral calf venous access is safe and effective in the treatment of entire-limb acute DVT. Thrombus in the distal popliteal vein can be one-stage removed and the incidence of PTS is low. It is considered as the first choice of access for the endovascular treatment of entire-limb acute DVT.
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Affiliation(s)
- Q H Ni
- Department of Vascular Surgery, Renji Hospital, School of Medicine, Shanghai Jiaotong University,Shanghai 200127,China
| | - X J Guo
- Department of Vascular Surgery, Renji Hospital, School of Medicine, Shanghai Jiaotong University,Shanghai 200127,China
| | - S F Yang
- Department of Vascular Surgery, Renji Hospital, School of Medicine, Shanghai Jiaotong University,Shanghai 200127,China
| | - W L Wang
- Department of Vascular Surgery, Renji Hospital, School of Medicine, Shanghai Jiaotong University,Shanghai 200127,China
| | - G H Xue
- Department of Vascular Surgery, Renji Hospital, School of Medicine, Shanghai Jiaotong University,Shanghai 200127,China
| | - Y P Zhao
- Department of Vascular Surgery, Renji Hospital, School of Medicine, Shanghai Jiaotong University,Shanghai 200127,China
| | - M Ye
- Department of Vascular Surgery, Renji Hospital, School of Medicine, Shanghai Jiaotong University,Shanghai 200127,China
| | - L Zhang
- Department of Vascular Surgery, Renji Hospital, School of Medicine, Shanghai Jiaotong University,Shanghai 200127,China
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Wang WL, Ouyang C, Graham NM, Zhang Y, Cassady K, Reyes EY, Xiong M, Davis AM, Tang K, Zeng D, Boldin MP. microRNA-142 guards against autoimmunity by controlling Treg cell homeostasis and function. PLoS Biol 2022; 20:e3001552. [PMID: 35180231 PMCID: PMC8893712 DOI: 10.1371/journal.pbio.3001552] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Revised: 03/03/2022] [Accepted: 01/21/2022] [Indexed: 01/10/2023] Open
Abstract
Regulatory T (Treg) cells are critical in preventing aberrant immune responses. Posttranscriptional control of gene expression by microRNA (miRNA) has recently emerged as an essential genetic element for Treg cell function. Here, we report that mice with Treg cell-specific ablation of miR-142 (hereafter Foxp3CremiR-142fl/fl mice) developed a fatal systemic autoimmune disorder due to a breakdown in peripheral T-cell tolerance. Foxp3CremiR-142fl/fl mice displayed a significant decrease in the abundance and suppressive capacity of Treg cells. Expression profiling of miR-142-deficient Treg cells revealed an up-regulation of multiple genes in the interferon gamma (IFNγ) signaling network. We identified several of these IFNγ-associated genes as direct miR-142-3p targets and observed excessive IFNγ production and signaling in miR-142-deficient Treg cells. Ifng ablation rescued the Treg cell homeostatic defect and alleviated development of autoimmunity in Foxp3CremiR-142fl/fl mice. Thus, our findings implicate miR-142 as an indispensable regulator of Treg cell homeostasis that exerts its function by attenuating IFNγ responses.
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Affiliation(s)
- Wei-Le Wang
- Irell and Manella Graduate School of Biological Sciences, Beckman Research Institute, City of Hope, Duarte, California, United States of America
- Department of Systems Biology, Beckman Research Institute, City of Hope, Duarte, California, United States of America
| | - Ching Ouyang
- Center for Informatics, Beckman Research Institute, City of Hope, Duarte, California, United States of America
- Department of Computational and Quantitative Medicine, Beckman Research Institute, City of Hope, Duarte, California, United States of America
| | - Natalie M. Graham
- Irell and Manella Graduate School of Biological Sciences, Beckman Research Institute, City of Hope, Duarte, California, United States of America
- Department of Systems Biology, Beckman Research Institute, City of Hope, Duarte, California, United States of America
| | - Yuankun Zhang
- Department of Diabetes Research, Beckman Research Institute, City of Hope, Duarte, California, United States of America
| | - Kaniel Cassady
- Irell and Manella Graduate School of Biological Sciences, Beckman Research Institute, City of Hope, Duarte, California, United States of America
- Department of Diabetes Research, Beckman Research Institute, City of Hope, Duarte, California, United States of America
| | - Estefany Y. Reyes
- Department of Systems Biology, Beckman Research Institute, City of Hope, Duarte, California, United States of America
| | - Min Xiong
- Irell and Manella Graduate School of Biological Sciences, Beckman Research Institute, City of Hope, Duarte, California, United States of America
- Department of Systems Biology, Beckman Research Institute, City of Hope, Duarte, California, United States of America
| | - Alicia M. Davis
- Irell and Manella Graduate School of Biological Sciences, Beckman Research Institute, City of Hope, Duarte, California, United States of America
| | - Kathie Tang
- Department of Systems Biology, Beckman Research Institute, City of Hope, Duarte, California, United States of America
| | - Defu Zeng
- Irell and Manella Graduate School of Biological Sciences, Beckman Research Institute, City of Hope, Duarte, California, United States of America
- Department of Diabetes Research, Beckman Research Institute, City of Hope, Duarte, California, United States of America
| | - Mark P. Boldin
- Irell and Manella Graduate School of Biological Sciences, Beckman Research Institute, City of Hope, Duarte, California, United States of America
- Department of Systems Biology, Beckman Research Institute, City of Hope, Duarte, California, United States of America
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Zhao C, Zhang QQ, Xu H, Wei N, Cui YF, Liu HT, Wang WL, Xiao JC, Zu MH. [Analysis of curative efficacy of transjugular intrahepatic portosystemic shunt using viabahn stent in the treatment of Budd-Chiari syndrome with extensive hepatic vein occlusion]. Zhonghua Gan Zang Bing Za Zhi 2021; 29:972-976. [PMID: 34814391 DOI: 10.3760/cma.j.cn501113-20200331-00151] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Objective: To investigate the efficacy of transjugular intrahepatic portosystemic shunt (TIPS) using viabahn stent in patients with Budd-Chiari syndrome (BCS) with extensive hepatic vein occlusion. Methods: Technical success rates, portal pressure gradient (PPG), complications and shunt patency rate of 25 cases with BCS with extensive hepatic vein occlusion treated by TIPS using viabahn stent were retrospectively analyzed. Color Doppler ultrasound was used for postoperative follow-up. Patency rates were evaluated by Kaplan-Meier curve. Results: The technical success rate of TIPS was 100%. Mean PPG decreased from (22.7 ± 6.2) mmHg preoperatively to (9.7 ± 2.6) mmHg postoperatively (t = 9.58, P < 0.05). Hepatic encephalopathy incidence was 8.0% (2/25), and there were no complications such as intra-abdominal hemorrhage. Twenty-five cases were followed up for 1 to 39 ( mean 19.0 ± 11.9) months, and one patient died of liver failure three months after interventional treatment. The primary patency rates at 1, 2, and 3 years after interventional treatment were 91.3%, 91.3%, and 78.2%, respectively, while the repatency rates were 100%, 92.9%, and 92.9%, respectively. Conclusion: TIPS using viabahn stent can bring better short-term and mid-term curative efficacy in treatment of BCS with extensive hepatic vein occlusion.
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Affiliation(s)
- C Zhao
- Department of Interventional Radiology, the Affiliated Hospital of Xuzhou Medical University, Xuzhou 221006, China
| | - Q Q Zhang
- Department of Interventional Radiology, the Affiliated Hospital of Xuzhou Medical University, Xuzhou 221006, China
| | - H Xu
- Department of Interventional Radiology, the Affiliated Hospital of Xuzhou Medical University, Xuzhou 221006, China
| | - N Wei
- Department of Interventional Radiology, the Affiliated Hospital of Xuzhou Medical University, Xuzhou 221006, China
| | - Y F Cui
- Department of Interventional Radiology, the Affiliated Hospital of Xuzhou Medical University, Xuzhou 221006, China
| | - H T Liu
- Department of Interventional Radiology, the Affiliated Hospital of Xuzhou Medical University, Xuzhou 221006, China
| | - W L Wang
- Department of Interventional Radiology, the Affiliated Hospital of Xuzhou Medical University, Xuzhou 221006, China
| | - J C Xiao
- Department of Interventional Radiology, the Affiliated Hospital of Xuzhou Medical University, Xuzhou 221006, China
| | - M H Zu
- Department of Interventional Radiology, the Affiliated Hospital of Xuzhou Medical University, Xuzhou 221006, China
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Xie L, Zhang Y, Wang JY, Yang DT, Teng PM, Wang WL, Huang Y. [A prospective before-after self-control study of the scenario simulation teaching of junior nurses in a burns department on the fluid resuscitation care of massive burn patients during shock stage]. Zhonghua Shao Shang Za Zhi 2021; 37:781-787. [PMID: 34404165 DOI: 10.3760/cma.j.cn501120-20201105-00456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore the effects of scenario simulation teaching of junior nurses in a burns department on the fluid resuscitation care of massive burn patients during shock stage. Methods: From March 2018 to July 2019, 25 junior nurses fixed in the Department of Burn of Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine met the inclusion criteria and were recruited in this prospective before-after self-control study, including 21 females and 4 males, aged 23 to 26 years. They had a work experience of 1.0 (1.0, 2.0) years in the Department of Burn. Three teaching scenarios were made according to the three major problems in the fluid resuscitation nursing of extensive burn patients during shock stage. The teaching plans were written based on the theoretical framework of Jeffrie's nursing simulation teaching. The high feasibility and practicability of the teaching plans was verified through expert consultation and evaluation by junior nurses. According to the three scenarios in the teaching plan, the junior nurses were performed with scenario simulation teaching, with 2 hours for each scenario, 6 hours in total. In one month before and after the teaching (hereinafter referred to as before and after teaching), the comprehensive ability of junior nurses was evaluated by the teachers using the self-designed junior nurse comprehensive ability evaluation scale, and their behaviors were evaluated by themselves with Performance Self-rating Scale for Nursing Students on High Simulation Training. Data were statistically analyzed with paired sample t test. Results: After teaching, the scores on communication skills, patient admissions, condition assessments, fluid resuscitation, emergency treatment, drug management, nursing skills, instrument use, teamwork, and humanitarian care and total score in the comprehensive ability evaluation of junior nurses as evaluated by teachers were significantly higher than those before teaching (t=-8.060, -11.421, -17.232, -24.800, -4.670, -11.916, -12.131, -11.606, -14.632, -13.325, -25.068, P<0.01), with 4 items including fluid resuscitation, condition assessment, nursing skills, and equipment operation having higher scores. After teaching, the nurses' self-rating scores on communication, division of labor and cooperation, clinical decision-making, professional knowledge and skills, and professional development and critical thinking and total score were (4.6±0.4), (4.8±0.3), (4.6±0.3), (4.6±0.4), (4.6±0.4), and (23.2±1.5) points respectively, which were significantly higher than the corresponding scores of (4.1±0.7), (4.2±0.7), (3.9±0.5), (3.7±0.6), (3.9±0.5), and (18.8±2.6) points before teaching (t=-3.361, -5.721, -6.987, -7.923, -7.922, -7.367, P<0.01). Conclusions: With solving the practical problems in nursing works of fluid resuscitation care of massive burn patients during shock stage as entry point, scenario simulation teaching aims to train the clinical practice ability and adaptability of junior nurses, thereby improving junior nurses' comprehensive ability of clinical practice in the fluid resuscitation care of massive burn patients during shock stage, enhancing their self-confidence and critical thinking ability.
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Affiliation(s)
- L Xie
- Department of Burn, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Y Zhang
- Department of Burn, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - J Y Wang
- Healthcare Simulation Center, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - D T Yang
- Department of Burn, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - P M Teng
- Department of Burn, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - W L Wang
- Department of Burn, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Y Huang
- Department of Burn, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
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15
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Brioschi S, Wang WL, Peng V, Wang M, Shchukina I, Greenberg ZJ, Bando JK, Jaeger N, Czepielewski RS, Swain A, Mogilenko DA, Beatty WL, Bayguinov P, Fitzpatrick JAJ, Schuettpelz LG, Fronick CC, Smirnov I, Kipnis J, Shapiro VS, Wu GF, Gilfillan S, Cella M, Artyomov MN, Kleinstein SH, Colonna M. Heterogeneity of meningeal B cells reveals a lymphopoietic niche at the CNS borders. Science 2021; 373:science.abf9277. [PMID: 34083450 DOI: 10.1126/science.abf9277] [Citation(s) in RCA: 199] [Impact Index Per Article: 66.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2020] [Revised: 04/01/2021] [Accepted: 05/24/2021] [Indexed: 12/11/2022]
Abstract
The meninges contain adaptive immune cells that provide immunosurveillance of the central nervous system (CNS). These cells are thought to derive from the systemic circulation. Through single-cell analyses, confocal imaging, bone marrow chimeras, and parabiosis experiments, we show that meningeal B cells derive locally from the calvaria, which harbors a bone marrow niche for hematopoiesis. B cells reach the meninges from the calvaria through specialized vascular connections. This calvarial-meningeal path of B cell development may provide the CNS with a constant supply of B cells educated by CNS antigens. Conversely, we show that a subset of antigen-experienced B cells that populate the meninges in aging mice are blood-borne. These results identify a private source for meningeal B cells, which may help maintain immune privilege within the CNS.
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Affiliation(s)
- Simone Brioschi
- Department of Pathology and Immunology, Washington University School of Medicine, Saint Louis, MO 63110, USA
| | - Wei-Le Wang
- Department of Pathology and Immunology, Washington University School of Medicine, Saint Louis, MO 63110, USA
| | - Vincent Peng
- Department of Pathology and Immunology, Washington University School of Medicine, Saint Louis, MO 63110, USA
| | - Meng Wang
- Interdepartmental Program in Computational Biology and Bioinformatics, Yale University, New Haven, CT 06511, USA
| | - Irina Shchukina
- Department of Pathology and Immunology, Washington University School of Medicine, Saint Louis, MO 63110, USA
| | - Zev J Greenberg
- Department of Pediatrics, Washington University School of Medicine, Saint Louis, MO 63110, USA
| | - Jennifer K Bando
- Department of Microbiology and Immunology, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Natalia Jaeger
- Department of Pathology and Immunology, Washington University School of Medicine, Saint Louis, MO 63110, USA
| | - Rafael S Czepielewski
- Department of Pathology and Immunology, Washington University School of Medicine, Saint Louis, MO 63110, USA
| | - Amanda Swain
- Department of Pathology and Immunology, Washington University School of Medicine, Saint Louis, MO 63110, USA
| | - Denis A Mogilenko
- Department of Pathology and Immunology, Washington University School of Medicine, Saint Louis, MO 63110, USA
| | - Wandy L Beatty
- Department of Molecular Microbiology, Center for Infectious Disease Research, Washington University School of Medicine, Saint Louis, MO 63110, USA
| | - Peter Bayguinov
- Washington University Center for Cellular Imaging, Washington University School of Medicine, Saint Louis, MO 63110, USA
| | - James A J Fitzpatrick
- Washington University Center for Cellular Imaging, Washington University School of Medicine, Saint Louis, MO 63110, USA.,Departments of Cell Biology and Physiology and Neuroscience, Washington University School of Medicine, Saint Louis, MO 63110, USA.,Department of Biomedical Engineering, Washington University in Saint Louis, Saint Louis, MO 63130, USA
| | - Laura G Schuettpelz
- Department of Pediatrics, Washington University School of Medicine, Saint Louis, MO 63110, USA
| | - Catrina C Fronick
- McDonnell Genome Institute, Washington University School of Medicine, Saint Louis, MO 63110, USA
| | - Igor Smirnov
- Department of Pathology and Immunology, Washington University School of Medicine, Saint Louis, MO 63110, USA
| | - Jonathan Kipnis
- Department of Pathology and Immunology, Washington University School of Medicine, Saint Louis, MO 63110, USA
| | | | - Gregory F Wu
- Department of Neurology, Washington University in Saint Louis, Saint Louis, MO 63110, USA
| | - Susan Gilfillan
- Department of Pathology and Immunology, Washington University School of Medicine, Saint Louis, MO 63110, USA
| | - Marina Cella
- Department of Pathology and Immunology, Washington University School of Medicine, Saint Louis, MO 63110, USA
| | - Maxim N Artyomov
- Department of Pathology and Immunology, Washington University School of Medicine, Saint Louis, MO 63110, USA
| | - Steven H Kleinstein
- Interdepartmental Program in Computational Biology and Bioinformatics, Yale University, New Haven, CT 06511, USA.,Department of Pathology, Yale School of Medicine, New Haven, CT 06520, USA
| | - Marco Colonna
- Department of Pathology and Immunology, Washington University School of Medicine, Saint Louis, MO 63110, USA.
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16
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Xu QQ, Wang WL, Zhang Y, Wang MX, Dong ZC. [A cross-sectional study on psychological needs of family members of critically ill inpatients in semi-closed wards and analysis of influence factors]. Zhonghua Shao Shang Za Zhi 2021; 37:475-484. [PMID: 34044528 DOI: 10.3760/cma.j.cn501120-20200314-00160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To analyze and discuss the psychological needs of family members of critically ill burn inpatients in semi-closed wards and their related influence factors. Methods: A cross-sectional survey was conducted among the 82 burn patients, who met the inclusion criteria and were admitted to the Department of Burns and Plastic Surgery of Ruijin Hospital of Shanghai Jiao Tong University School of Medicine from October 2018 to April 2019, and their family members. A general condition questionnaire of 15 indexes was applied to investigate the general data of burn patients and their family members including cause of burn, gender, age, total burn area, burn depth, burn severity, burn site, and type of medical insurance of patients, kinship with the patients, gender, age, experience of accompanying in intensive care isolation wards, occupation, education level, and monthly income of their family members. The Critical Care Family Needs Inventory (CCFNI) was used to assess each item, each factor, and total scores of the family members of patients including 5 factors and 45 items such as support scale (SS), comfort scale (CS), information scale (IS), proximity scale (PS), assurance scale (AS). CCFNI was used to assess the total scores of patients and their family members after classification according to the general data, the data were statistically analyzed with one-way analysis of variance or independent sample t test. Indicators with statistical significance in the above analysis were selected for multiple linear regression analysis to screen the independent influence factors of psychological needs of patients' family members. CCFNI was used to assess each dimension scores of patients and their family members after classification according to the aforementioned selected independent influence factors including age and burn area of patients, gender, educational level, and experience of accompanying in intensive care isolation wards of their family members, and the data were statistically analyzed with one-way analysis of variance or independent sample t test. Results: A total of 82 questionnaires were sent out in this study, and 80 were effectively received, with s a recovery rate of 97.6%. In 80 patients, there were 45 males and 35 females; 35 cases (43.75%) were ≤14 years; most of the patients had flame and thermal burns; 33 patients (41.25%), 21 patients (26.25%), and 26 patients (32.50%) had moderate, severe, and extremely severe burns, respectively; and only 3 patients (3.75%) had no health insurance. In 80 family members of patients, 34 (42.50%) were males and 46 (57.50%) were females; 62.50% in the family members of patients were concentrated between 18 and 45 years old; and 12 family members of patients had experience of accompanying in intensive care isolation wards, accounting for 15.00%. The total CCFNI score of the family members was (141±14) points, and the scores of AS, PS, IS, CS, and SS were (3.77±0.23), (3.43±0.37), (3.53±0.34), (2.50±0.59), and (2.69±0.45) points, respectively. The top five items of the psychological needs of family members of patients were concentrated in three factors (AS, PS, and IS), and the item "ensuring that patients receive the best treatment" ranked the first, with a score of (3.99±0.11) points. There were significant differences on the CCFNI total scores of patients with different age, total burns area, and severity of burns and of their family members with different gender, education level, and whether or not experience of accompanying in intensive care isolation unit (F=4.378, 5.481, 5.913, t=4.027, 14.339, 7.265, P<0.05 or P<0.01). Multiple linear regression analysis showed that the patient's age (≤14, 15-45 years) and total burn area (11%-30%, 31%-49%, ≥50% TBSA) and the patient's family members' gender, educational level, experience of accompanying in intensive care isolation unit could affect the psychological needs of family members of patients (t=3.133, 2.260, 2.297, 2.433, 3.015, 2.200, 2.102, 2.463, P<0.05 or P<0.01). There was statistically significant difference in AS score of the patients' family members with different age (F=4.390, P<0.05). There were significant differences in both IS and AS scores of the patients' family members of patients with different burn area (F=5.042, 3.131, P<0.05 or P<0.01). The AS score of the patients' family members with experience of accompanying in intensive care isolation unit was significantly lower than those without (t=-1.040, P<0.05). The SS score of the patients' family members with college education or above was significantly higher than those with high school (technical secondary school) or below (t=0.657, P<0.05). The IS score of the patients' family members with college education or above was significantly lower than those with high school (technical secondary school) or below (t=-1.438, P<0.05). The SS score of male family members of patients was significantly lower than those of female patients (t=4.149, P<0.05). Conclusions: The family members of burn patients in semi-closed ward have the most urgent need to ensure the patients receive the best treatment. Patients' age, total burn area, and their family members' gender, education level, experience of accompanying in intensive care isolation unit are the main factors affecting the psychological needs of family members of patients.
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Affiliation(s)
- Q Q Xu
- Department of Burns and Plastic Surgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - W L Wang
- Department of Burns and Plastic Surgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Y Zhang
- Department of Burns and Plastic Surgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - M X Wang
- Department of Social Work, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Z C Dong
- Department of Social Work, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
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17
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Yang XK, Li Y, Zhao HT, Li ZL, Geng MJ, Wang WL, Qin Y, Yu JX, Peng ZB, Tan WJ, Zheng JD, Li ZJ, Feng ZJ. [Advance on the infectivity of SARS-CoV-2 infection at different stages]. Zhonghua Liu Xing Bing Xue Za Zhi 2021; 42:33-38. [PMID: 33503696 DOI: 10.3760/cma.j.cn112338-20200806-01027] [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: 11/05/2022]
Abstract
The studies on infectiousness of person infected with SARS-CoV-2 at different stages of illness are an important basis for making effective prevention and control measures such as investigating the infectious source, determining the scope of close contacts and the timing of case isolation. This review discusses the infectiousness of cases infected with SARS-CoV-2 in the incubation period, symptomatic period and convalescent period by reviewing national and international literatures, technical and professional guidelines. Existing researches suggest that the infectious viruses could be isolated at the end of the incubation period as well as since illness onset, and viral load in upper respiratory tract swabs reached the peak on day 4-6 after illness onset and thereafter began to decline, implying the infectiousness was relatively strong at the end of incubation period and within one week after illness onset. Although there were a few cases who tested positive for SARS-CoV-2 after recovery, no evidence was found to indicate these cases can cause the transmission.
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Affiliation(s)
- X K Yang
- Division of Infectious Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Y Li
- Division of Infectious Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - H T Zhao
- Division of Infectious Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Z L Li
- Division of Infectious Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - M J Geng
- Division of Infectious Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - W L Wang
- National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Y Qin
- Division of Infectious Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - J X Yu
- National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Z B Peng
- Division of Infectious Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - W J Tan
- National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - J D Zheng
- Division of Infectious Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Z J Li
- Division of Infectious Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Z J Feng
- Chinese Center for Disease Control and Prevention, Beijing 102206, China
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Ma XJ, Song TY, Wang WL, Zhang ZW. Effect of microRNA-129-5p targeting high mobility group protein box1 on regulating inflammation in lipopolysaccharide-activated primary spinal microglia cells. J BIOL REG HOMEOS AG 2020; 34:1423-1430. [PMID: 32896114 DOI: 10.23812/20-133-l] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- X J Ma
- Department of Anesthesiology, The First Hospital of Shijiazhuang, Shijiazhuang, China
| | - T Y Song
- Department of Anesthesiology, The First Hospital of Shijiazhuang, Shijiazhuang, China
| | - W L Wang
- Department of Gynaecology, Maternal and Child Health Care Hospital of Shijiazhuang, Shijiazhuang, China
| | - Z W Zhang
- Department of Anesthesiology, The Bethune International Peace Hospital of P.L.A., Shijiazhuang, China
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Zhao WH, Zhang TH, Wang WL, Wang BQ, Zhang ZQ, Lin L. [Effects on learning and memory and mitochondrial energy metabolism in hippocampus of mice by subacute exposure to n-hexane]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2020; 38:646-650. [PMID: 33036525 DOI: 10.3760/cma.j.cn121094-20191010-00490] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To study the effects on learning and memory, mitochondrial energy metabolism and ATPase activity of hippocampus in mice with subacute exposure to n-hexane. Methods: The SPF 40 Kunming mice were randomly divided into low, middle and high dose groups and control groups according to different dosages. Each group consisted of 10 mice. The mice were given n-hexane by gavage, the mice in the low, middle and high dose groups were given 0.2 ml/d of n-hexane at concentrations of 500, 1000 and 2000 mg/kg respectively, while the mice in the control group were given 0.2 ml/d of cooking oil once a day for 28 days. The y-type maze test, the activity of ATP Enzyme, mitochondrial respiratory chain enzyme complex Ⅰ-IV, the mrna of mitochondrial fusion gene (MFn1, Mfn2) and fission gene (FIs1) in brain tissues were performed. Results: Except for the wrong reaction times of low-dose exposure group in the first test, there existed significantly different in the first and second Y-maze tests in exposure groups and control group (P<0.05) ; in low, middle and high-dose group, the Na(+)-K(+)-ATPase activities were (8.27±2.65) , (5.38±1.55) , (3.55±1.69) μmol/gprot/h, and Ca(2+)-Mg(2+)-ATPase activities were (10.32±2.96) , (7.19±1.94) and (4.49±1.33) μmol/gprot/h, respectively. Compared with those in control group, the activities of Na(+)-K(+)-ATPase and Ca(2+)-Mg(2+)-ATPase decreased significantly in middle-dose group and high-dose group (P<0.05) . Compared with those in control group, the activities of mitochondrial respiratory chain enzyme complex I-IV in each dose group were significantly decreased (P<0.05) . The expressions of Mfn1mRNA and Mfn2mRNA in each dose group was significantly lower than those in control group (P<0.05) . Conclusion: Subacute exposure to n-hexane can result in the decrease of activities of mitochondrial respiratory chain enzyme complex in hippocampus of mice, which may lead to the disorder of mitochondrial energy metabolism by the decrease of ATPase activity and the imbalance of mitochondrial fusion-division, which must be one of the mechanisms of impairment of learning and memory of mice induced by n-hexane.
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Affiliation(s)
- W H Zhao
- Key Laboratory of Occupational Health & Environmental Medicine, Jining Medical University, Jining 272013, China
| | - T H Zhang
- Key Laboratory of Occupational Health & Environmental Medicine, Jining Medical University, Jining 272013, China
| | - W L Wang
- Key Laboratory of Occupational Health & Environmental Medicine, Jining Medical University, Jining 272013, China
| | - B Q Wang
- Key Laboratory of Occupational Health & Environmental Medicine, Jining Medical University, Jining 272013, China
| | - Z Q Zhang
- Key Laboratory of Occupational Health & Environmental Medicine, Jining Medical University, Jining 272013, China
| | - L Lin
- Key Laboratory of Occupational Health & Environmental Medicine, Jining Medical University, Jining 272013, China
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Chen CL, Kang S, Chen BL, Yang Y, Guo JX, Hao M, Wang WL, Ji M, Sun LX, Wang L, Liang WT, Wang SG, Li WL, Fan HJ, Liu P, Lang JH. [Long-term oncological outcomes of laparoscopic versus abdominal surgery in stage Ⅰa1 (LVSI +)-Ⅰb1 cervical cancer patients with different tumor size: a big database in China]. Zhonghua Fu Chan Ke Za Zhi 2020; 55:589-599. [PMID: 32957747 DOI: 10.3760/cma.j.cn112141-20200515-00411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To compare the long-term oncological outcomes between laparoscopic and abdominal surgery in stage Ⅰa1 (lymph-vascular space invasion-positive, LVSI+)- Ⅰb1 cervical cancer patients with different tumor sizes. Methods: Based on the Big Database of Clinical Diagnosis and Treatment of Cervical Cancer in China (1538 project database), patients with stage Ⅰa1 (LVSI+)-Ⅰb1 cervical cancer who treated by laparoscopic or abdominal surgery were included. The 5-year overall survival (OS) and 5-year disease-free survival (DFS) between the two surgical approaches were compared under 1∶1 propensity score matching (PSM) in different tumor diameter stratification. Results: (1) A total of 4 891 patients with stage Ⅰa1 (LVSI+)-Ⅰb1 cervical cancer who underwent laparoscopy or laparotomy from January 1, 2009 to December 31, 2016 were included in the 1538 project database. Among them, 1 926 cases in the laparoscopic group and 2 965 cases in the abdominal group. There were no difference in 5-year OS and 5-year DFS between the two groups before matching. Cox multivariate analysis suggested that laparoscopic surgery was associated with lower 5-year DFS (HR=1.367, 95%CI: 1.105-1.690, P=0.004). After 1∶1 PSM matching, 1 864 patients were included in each group, and there was no difference in 5-year OS between the two groups (94.1% vs 95.4%, P=0.151). While, the inferior 5-year DFS was observed in the laparoscopic group (89.0% vs 92.3%, P=0.004). And the laparoscopic surgery was associated with lower 5-year DFS (HR=1.420, 95%CI: 1.109-1.818, P=0.006). (2) In stratification analysis of different tumor sizes, and there were no difference in 5-year OS and 5-year DFS between the laparoscopic group and abdominal group in tumor size ≤1 cm, >1-2 cm and >2-3 cm stratification (all P>0.05). Cox multivariate analysis showed that laparoscopic surgery were not related to 5-year OS and 5-year DFS (P>0.05). In the stratification of tumor size >3-4 cm, there was no difference in 5-year OS between the two groups (P>0.05). The 5-year DFS in the laparoscopic group was worse than that in the abdominal group (75.7% vs 85.8%, P=0.025). Cox multivariate analysis suggested that laparoscopic surgery was associated with lower 5-year DFS (HR=1.705, 95%CI: 1.088-2.674, P=0.020). Conclusions: For patients with stage Ⅰa1 (LVSI+)-Ⅰb1 cervical cancer, laparoscopic surgery is associated with lower 5-year DFS, and the adverse effect of laparoscopic surgery on oncology prognosis is mainly reflected in patients with tumor size >3-4 cm. For patients with tumor sizes ≤1 cm, >1-2 cm and >2-3 cm, there are no difference in oncological prognosis between the two surgical approaches.
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Affiliation(s)
- C L Chen
- Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - S Kang
- Department of Gynecology, Fourth Hospital, Hebei Medical University, Shijiazhuang 050011, China
| | - B L Chen
- Department of Gynecology, Xijing Hospital, Air Force Medical University, Xi'an 710032, China
| | - Y Yang
- Department of Obstetrics and Gynecology, Xinqiao Hospital, Army Medical University, Chongqing 400037, China
| | - J X Guo
- Department of Obstetrics and Gynecology, Daping Hospital, Army Medical University, Chongqing 400042, China
| | - M Hao
- Department of Obstetrics and Gynecology, the Second Hospital of Shanxi Medical University, Taiyuan 030001, China
| | - W L Wang
- Department of Obstetrics and Gynecology, the Second Affiliated Hospital of Zhengzhou University, Zhengzhou 450014, China
| | - M Ji
- Department of Obstetrics and Gynecology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - L X Sun
- Department of Gynecology, Shanxi Cancer Hospital, Taiyuan 030013, China
| | - L Wang
- Department of Gynecology, Henan Cancer Hospital, Zhengzhou 450008, China
| | - W T Liang
- Department of Gynecology, Guizhou Provincial People's Hospital, Guiyang 550002, China
| | - S G Wang
- Department of Gynecology, Yantai Yuhuangding Hospital, Qingdao University, Yantai 264000, China
| | - W L Li
- Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - H J Fan
- Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - P Liu
- Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - J H Lang
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing 100730, China
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Zhong GB, Jiang CQ, Yu XS, Liu ZD, Wang WL, Xu RD. Long noncoding RNA SNHG8 promotes the proliferation of osteosarcoma cells by downregulating miR-542-3p. J BIOL REG HOMEOS AG 2020; 34:517-524. [PMID: 32450677 DOI: 10.23812/20-97-61] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Small nucleolar RNA host genes (SNHGs) as a subset of long noncoding RNAs (lncRNAs) have critical roles in the pathogenesis of multiple malignancies, however, the role and molecular mechanisms of lncRNA SNHG8 in osteosarcoma (OS) remain unclear. In the present study, the correlation of SNHG8 or miR-542-3p with clinicopathological elements and prognosis in OS patents was estimated by TCGA cohort. Cell viability and invasion were assessed by MTT and Transwell assays. The interplay between SNHG8 and miR-542-3p was affirmed by a luciferase report assay. The effects of SNHG8 on miR-542-3p expression were examined in MG-63 and SW-1353 cells by qRT-PCR analysis. The results showed that incremental expression of SNHG8 or reduced expression of miR-542-3p was related to poor survival and tumor recurrence in OS patients. Overexpressing SNHG8 accelerated the growth and invasion of MG-63 cells, but silencing SNHG8 harbored an opposite effect in SW-1353 cells. Additionally, SNHG8 could negatively regulate miR-542-3p expression and bind with miR-542-3p, which attenuated SNHG8 induced cell proliferation. Taken together, these findings indicate that lncRNA SNHG8 promotes the proliferation of OS cells by downregulating miR-542-3p.
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Affiliation(s)
- G B Zhong
- Baoshan Branch, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University. Shanghai, China
| | - C Q Jiang
- Department of Orthopaedics, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - X S Yu
- Department of Orthopaedics, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Z D Liu
- Department of Orthopaedics, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - W L Wang
- Department of Orthopaedics, South Campus, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - R D Xu
- Department of Orthopaedics, South Campus, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
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Wang WL, Zhao YJ. Effects of fine particulate PM 2.5 on emphysema of mice via regulating FOXO3A/BIM axis. J BIOL REG HOMEOS AG 2020; 34:953-960. [PMID: 32696626 DOI: 10.23812/20-50-a-54] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
This study aims to investigate the role of PM2.5 exposure in inducing apoptosis of alveolar epithelial cells and thereafter emphysema in mice, and the underlying mechanism. PM2.5 exposure model in mice was constructed. Lung tissues were harvested from healthy mice and model mice for hematoxylin and eosin (H&E) staining. Protein levels of Forkhead box O3 (FOXO3A) and BIM in lung tissues were detected by Western blot. Subsequently, A549 cells were induced with increased doses of PM2.5, followed by determination of relative levels of FOXO3A, BIM (Bcl-2 interacting mediator of cell death) and clv-caspase3. Apoptosis in PM2.5-exposed A549 cells was assessed. Chromatin immunoprecipitation (ChIP) assay was conducted to uncover the interaction between FOXO3A and BIM. Finally, regulatory effects of FOXO3A/BIM on apoptosis of A549 cells were determined. PM2.5 exposure resulted in expansion of alveolar spatial structure and decline of lung function, thus leading to emphysema in mice. Protein levels of FOXO3A and BIM were markedly upregulated in lungs of model mice. Relative levels of FOXO3A, BIM and clv-caspase3 were enhanced in PM2.5 -exposed A549 cells, which were reversed by transfection of si-FOXO3A. ChIP assay confirmed that FOXO3A was able to regulate BIM transcription through binding its promoter regions. Importantly, regulatory effects of FOXO3A on apoptosis of PM2.5 -exposed A549 cells were partially reversed by overexpression of BIM. PM2.5 exposure leads to upregulation of FOXO3A, which triggers BIM transcription, thus inducing apoptosis of alveolar epithelial cells and emphysema in mice.
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Affiliation(s)
- W L Wang
- Department of Respiratory Medicine, The Third hospital of JiLin University, Changchun, China
| | - Y J Zhao
- Department of Respiratory Medicine, The Third hospital of JiLin University, Changchun, China
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Affiliation(s)
- W L Wang
- Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, Shanghai, China
| | - T Duan
- Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, Shanghai, China
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Gong RL, Jin RR, Yu XP, Wang WL. LncRNA SNHG1 acts as an oncogene through regulating miR-145-5p in ovarian cancer. J BIOL REG HOMEOS AG 2020; 34:1077-1083. [PMID: 32495617 DOI: 10.23812/20-179-l-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Affiliation(s)
- R L Gong
- Gansu Provincial Maternity and Child-care Hospital, Lanzhou, Gansu, China
| | - R R Jin
- Gansu Provincial Maternity and Child-care Hospital, Lanzhou, Gansu, China
| | - X P Yu
- Gansu Provincial Maternity and Child-care Hospital, Lanzhou, Gansu, China
| | - W L Wang
- Gansu Provincial Maternity and Child-care Hospital, Lanzhou, Gansu, China
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Graham NM, Wang WL, Reyes EY, Boldin MP. The role of microRNA-142 in B cell activation and effector functions. The Journal of Immunology 2020. [DOI: 10.4049/jimmunol.204.supp.155.8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Abstract
Control of gene expression by microRNA (miRNA) has recently emerged as a critical mechanism that regulates B cell activation and function. However, the role of specific miRNAs in this process is unclear. Using germline knockout (KO) mice, we have previously shown that miR-142 ablation impairs humoral immunity despite significant expansion of the B cell compartment, suggesting that miR-142 is critical for B cell effector function. We found that mice lacking miR-142 cannot generate specific antibody responses upon antigen challenge and display impaired germinal center (GC) formation and plasma cell differentiation. To more precisely dissect the role of miR-142 in B cell effector responses, we developed an activated B cell-specific miR-142 KO mouse by breeding conditional miR-142 KO (miR-142fl/fl) mice with mice expressing Cre recombinase driven by activation-induced cytosine deaminase (AIDCre). AID is required for class switch recombination and somatic hypermutation, and is induced in B cells upon antigen encounter. To label activated B cells in miR-142fl/flAIDCre mice, we bred them to Ai6 mice that carry a loxP-flanked STOP cassette, allowing for the expression of fluorescent ZsGreen1 reporter protein in the presence of Cre recombinase. FACS analysis of Peyer’s patches from naive miR-142fl/flAIDCreZsgreen+/− mice revealed a significant decrease in GC B cells, while the number of ZsGreen1+ activated B cells increased, suggesting an aberrant B cell activation and GC response. We will discuss at the meeting the role of miR-142 in promoting humoral responses to antigen by presenting the findings from our ongoing studies of B cell differentiation and effector function in immunized miR-142fl/flAIDCreZsgreen+/− mice.
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Affiliation(s)
| | - Wei-Le Wang
- 1Irell & Manella Graduate School of Biological Science, City of Hope
| | | | - Mark P. Boldin
- 1Irell & Manella Graduate School of Biological Science, City of Hope
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Li CF, Zhang LH, Wang WL, Cao J, Wang YG, Zhao YX. [The prevalence and relationship between laryngopharyngeal reflux disease, anxiety and depression in otolaryngology outpatients]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2020; 55:241-248. [PMID: 32268693 DOI: 10.3760/cma.j.issn.1673-0860.2020.03.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To obtain the prevalence laryngopharyngeal reflux disease (LPRD), anxiety and depression in otorhinolaryngology outpatients and to explore the role of mental and psychological factors (anxiety and depression) in their pathogenesis. Methods: A questionnaire survey of reflux symptom index(RSI) scale and hospital anxiety and depression (HAD) scale were used to report 1 111 cases of outpatients in Department of Otorhinolaryngology Head and Neck Surgery, Peking University People's Hospital, from July 2017 to June 2018 (486 males, 625 females, age of 18-96 years old, median age of 38[30,53] years old) and to obtain the prevalence of LPRD, anxiety and depression. RSI-positive patients were selected in the case group, and RSI-negative patients were selected in the control group. The differences in HAD scores between the two groups were compared, and the risk factors of laryngopharyngeal reflux were analyzed. Statistical analysis was performed using SPSS 20.0 software. Results: There were 151 cases in the case group and 960 cases in the control group. The prevalence of LPRD was 13.59% (151/1 111).There was no significant difference in the prevalence of LPRD between different genders (P>0.05). The prevalence rate was the highest in the 18-40 age group, and the difference in the prevalence of all age groups (18~ 40 years old; 41-65 years old; >65 years old) was statistically significant (P<0.05). The prevalence of LPRD among smokers and non-drinkers was higher than that of non-smokers and non-drinkers and the prevalence of the two groups was statistically significant (P<0.05). The most common symptoms of the RSI scale were pharyngeal foreign body sensation (92.72%,140/151), persistent clearing throat (88.74%,124/151), excessive sputum or nasal reflux (82.12%, 124/151). There were significant statistical differences between the two groups (P<0.05). Ninty-one patients with anxiety, the prevalence was 8.19%(91/1 111); 76 patients with depression, the prevalence was 6.84%(76/1 111).Among the LPRD patients, the hospital anxiety scale scored 29.14% (44/151), and the hospital depression scale scored 17.22% (26/151). The scores of anxiety symptoms and depressive symptoms in the LPRD group were higher than those in the non-LPRD group. The above scores were statistically significant (P<0.05). Logistic regression analysis showed that smoking, anxiety and symptoms of gastroesophageal reflux disease were independent risk factors for laryngopharyngeal reflux. Conclusions: The prevalences of LPRD, anxiety and depression in the otorhinolaryngology clinic are 13.59%, 8.19% and 6.84%, respectively. Among patients with laryngopharyngeal reflux, the prevalence of anxiety is 29.14%, and the prevalence of depression is 17.22%. Age, smoking, drinking, alcohol consumption, education level, course of disease, symptoms of gastroesophageal reflux disease, pharyngeal foreign body sensation, etc. are related to LPRD. Mental factors (anxiety and depression) may play a role in LPRD. Smoking, anxiety symptoms and symptoms of gastroesophageal reflux disease are closely related to the incidence of LPRD.
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Affiliation(s)
- C F Li
- Department of Otorhinolaryngology Head and Neck Surgery, Peking University People's Hospital, Beijing 100044, China
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Jiang MM, Xu H, Zhang QQ, Wei N, Xu W, Cui YF, Liu HT, Zu MH, Wang WL, Gao ZK. [Preliminary application of transjugular intrahepatic portosystemic shunt in individualized treatment of patients with cirrhotic portal hypertension complicated with refractory ascites and variceal hemorrhage]. Zhonghua Yi Xue Za Zhi 2019; 99:3737-3740. [PMID: 31874500 DOI: 10.3760/cma.j.issn.0376-2491.2019.47.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the feasibility, efficacy and safety of transjugular intrahepatic portosystemic shunt (TIPS) in the individualized treatment of patients with refractory ascites and variceal hemorrhage caused by portal hypertension. Methods: Prospective study of clinical data of 47 patients with portal hypertension and refractory ascites and variceal bleeding admitted to the Affiliated Hospital of Xuzhou Medical University from August 2017 to December 2018, 26 males and 21 females, aged 23-75 (52±14) years old. The Viabahn stent was used to control the diameter of the shunt and the preoperative interval of PPG after individualized TIPS was determined according to the preoperative liver function Child-Pugh classification. The PPG of the Child A and B patients was <10 mm Hg (1 mmHg=0.133 kPa), Child-Pugh C grade patients with postoperative PPG interval values of 12 to 15 mmHg. The success rate, hemostasis rate, ascites remission rate, and complication rate were recorded. Results: Forty-seven patients were with a success rate of 100%, and there was no surgically related fatal complications. The portal pressure gradients of patients with Child-Pugh A, B and Child-Pugh C were reduced from preoperative (22.5±5.4), (24.4±2.6) mm Hg to postoperative (8.8±2.5), (13.2±1.1) mm Hg (all P<0.05). All the patients were followed up for 6 to 24 months, with a median follow-up of 13 months. The success rate of hemostasis in patients with upper gastrointestinal bleeding was 93.5% (29/31), the remission rate of patients with refractory ascites was 14/16, the postoperative rebleeding rate was 6.5% (2/31), the incidence of hepatic encephalopathy was 8.5% (4/47), and the shunt disorder was 2.1% (1/47). Conclusion: The use of Viabahn stent for individualized TIPS in the treatment of portal hypertension with refractory ascites and variceal hemorrhage is feasible, and the clinical efficacy is affirmative, which can reduce the incidence of postoperative hepatic encephalopathy and shunt dysfunction.
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Affiliation(s)
- M M Jiang
- Department of Interventional Radiology, Affiliated Hospital of Xuzhou Medical University, Xuzhou 221006, China
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Cao J, Zhang LH, Wang WL, Wang YG, Li CF, Zhao YX, Liu YJ. [Establishment and research of a New Zealand rabbit model of laryngopharyngeal reflux]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2019; 54:912-918. [PMID: 31887817 DOI: 10.3760/cma.j.issn.1673-0860.2019.12.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To establish a New Zealand rabbit animal model of laryngopharyngeal reflux disease (LPRD) using esophageal balloon together with metal internal stent dilation and to investigate the changes of mucosa. Methods: 20 New Zealand rabbits were randomly divided into experimental group and control group, with 10 in each group. Balloon dilatation and metal internal stent dilation were carried out in experimental group to reproduce the animal model of LPRD.The middle of balloon was placed at the lower esophageal sphincter (LES) while the stent was placed at the upper esophageal sphincter (UES). The guide wire was placed in the control group, but the balloon was not expanded and the stent was not placed. The general condition, pH value of hypopharynx, laryngeal histopathology and changes of pepsin content of New Zealand rabbits were observed regularly. The difference between experimental group and control group was compared. Results: The 24-hour Dx-pH monitoring results showed that the number of reflux episodes(20.0[9.5, 35.0], 13.0[6.5, 22.0]), and the percent time below pH 5.5 (1.36%[0.60%, 4.57%], 1.36%[0.43%, 2.77%]) in the experimental group at the 2nd and 4th week were significantly different from those in the control group (0[0,3.0], 1.0[0.5, 3.8]; 0[0, 0.01%], 0[0, 0], respectively, all P<0.01), suggesting that the experimental group New Zealand rabbits developed LPRD. Compared with the control group under microscope, lymphocytes infiltration and submucosal gland hyperplasia increased in the mucosa of the throat of the experimental group. The results of pepsin immunohistochemical staining between the two groups were statistically significant (P=0.014). Conclusion: The use of balloon dilatation of the LES combined with metal stent dilatation of the UES can successfully establish a laryngopharyngeal reflux model, and lesions in the throat tissue can be observed.
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Affiliation(s)
- J Cao
- Department of Otorhinolaryngology, Peking University People's Hospital, Peking University, Beijing 100044, China
| | - L H Zhang
- Department of Otorhinolaryngology, Peking University People's Hospital, Peking University, Beijing 100044, China
| | - W L Wang
- Department of Otorhinolaryngology, Peking University People's Hospital, Peking University, Beijing 100044, China
| | - Y G Wang
- Department of Otorhinolaryngology, Peking University People's Hospital, Peking University, Beijing 100044, China
| | - C F Li
- Department of Otorhinolaryngology, Peking University People's Hospital, Peking University, Beijing 100044, China
| | - Y X Zhao
- Department of Otorhinolaryngology, Peking University People's Hospital, Peking University, Beijing 100044, China
| | - Y J Liu
- Department of Otorhinolaryngology, Peking University People's Hospital, Peking University, Beijing 100044, China
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Wang W, Hao M, Chen CL, Liu P, Ling B, Kang S, Lu AW, Wang WL, Zhao WD, Zhu QY, Zhao YY, Zhao HW, Jin SL, Ni Y, Lang JH. [Trend in proportion and clinicopathological characteristics of young women with stage Ⅰa2 to Ⅱa2 cervical cancer]. Zhonghua Fu Chan Ke Za Zhi 2019; 54:666-672. [PMID: 31648442 DOI: 10.3760/cma.j.issn.0529-567x.2019.10.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To analyze the 13 years trend in proportion, risks factors and clinicopathological characteristics of young women with stage Ⅰa2 to Ⅱa2 cervical cancer by using multi-center data of cervical cancer in China. Methods: The clinicopathological data of 46 313 patients with cervical cancer treated from 37 hospitals in China were obtained from January 2004 to December 2016. Using clinical and pathologic data, each patient's stage was reclassified by the 2018 International Federation of Gynecology and Obstetrics (FIGO) staging system. A total of 19 041 patients were selected according to the following criteria: FIGO stage Ⅰa2 to Ⅱa2, underwent type B or C radical hysterectomy and pelvic lymphadenectomy. All the patients were divided into two groups: the study group of 1 888 patients aged 35 years or younger and the control group of 17 153 patients aged over 35 years. The 13 years trend in proportion of young women with stage Ⅰa2 to Ⅱa2 cervical cancer, risks factors and clinicopathological characteristics of two groups were retrospectively analyzed. Results: (1) The total number of hospitalized patients with stage Ⅰa2 to Ⅱa2 cervical cancer increased annually. However, a downward trend of patients aged 35 years or younger was observed (P<0.01) . The constituent ratio of patients aged 35 years or younger was significantly greater during 2004-2010 than that during 2011-2016 [12.6% (820/6 484) and 8.5% (1 068/12 557) , respectively; χ(2)=82.101, P<0.01]. (2) Compared with patients aged over 35 years, patients aged 35 years or younger had an earlier age at menarche, a later age at marriage, lesser gravida and parity (all P<0.01). The positive rate of high-risk HPV infection was not statistically different between two groups (all P>0.05). (3) The proportions of stage Ⅰ, exophytic type and non-squamous histological type in patients aged 35 years or younger were clearly higher than those in patients aged over 35 years (83.4% vs 68.5%, P<0.01; 63.2% vs 56.2%, P<0.01; 13.9% vs 12.0%, P<0.05, respectively). Whereas the poor differentiation ratios of the two groups had no statistical significance (P>0.05). (4) As for the postoperative pathological risk factors, the rate of surgical margin involvement in patients aged 35 years or younger was lower than that aged over 35 years (1.1% vs 1.8%, P<0.05), and the rate of depth of stromal invasion >1/2 in patients aged 35 years or younger was lower than that in patients aged over 35 years (40.1% vs 50.9%, P<0.01). In addition, there were no significant difference in parametrial margin involvement, tumor size and lymph vascular space invasion between two groups (all P>0.05). Conclusions: The trend in proportion among hospitalized patients for stage Ⅰa2 to Ⅱa2 cervical cancer in young women is decreasing yearly. Compared with cervical cancer in middle-aged and elderly women, cervical cancer in young women have an earlier age at menarche, a higher proportion of stage Ⅰ patients and non-squamous histological type. In terms of the postoperative pathological risk factors, the rate of surgical margin involvement and depth of stromal invasion >1/2 in young women with cervical cancer are lower than in middle-aged and elderly women.
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Affiliation(s)
- W Wang
- Department of Obstetrics and Gynecology, the Second Hospital of Shanxi Medical University, Taiyuan 030001, China
| | - M Hao
- Department of Obstetrics and Gynecology, the Second Hospital of Shanxi Medical University, Taiyuan 030001, China
| | - C L Chen
- Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - P Liu
- Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - B Ling
- Department of Obstetrics and Gynecology, China-Japan Friendship Hospital, Beijing 100029, China
| | - S Kang
- Department of Gynecology, Fourth Hospital, Hebei Medical University, Shijiazhuang 050019, China
| | - A W Lu
- Department of Obstetrics and Gynecology, Shenzhen Hospital, Southern Medical University, Shenzhen 518101, China
| | - W L Wang
- Department of Obstetrics and Gynecology, the Second Affiliated Hospital of Zhengzhou University, Zhengzhou 450014, China
| | - W D Zhao
- Department of Obstetrics and Gynecology, Anhui Provincial Hospital, Hefei 236048, China
| | - Q Y Zhu
- Department of Obstetrics and Gynecology, Henan Provincial People's Hospital, Zhengzhou 450003, China
| | - Y Y Zhao
- Department of Obstetrics and Gynecology, the Second Hospital of Shanxi Medical University, Taiyuan 030001, China
| | - H W Zhao
- Department of Gynecology, Shanxi Provincial Cancer Hospital, Taiyuan 030001, China
| | - S L Jin
- Department of Obstetrics and Gynecology, Peace Hospital Affiliated with Changzhi Medical College, Changzhi 046000, China
| | - Y Ni
- Department of Obstetrics and Gynecology, Yuncheng Central Hospital in Shanxi Province, Yuncheng 044000, China
| | - J H Lang
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing 100730, China
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Berrien-Elliott MM, Sun Y, Neal C, Ireland A, Trissal MC, Sullivan RP, Wagner JA, Leong JW, Wong P, Mah-Som AY, Wong TN, Schappe T, Keppel CR, Cortez VS, Stamatiades EG, Li MO, Colonna M, Link DC, French AR, Cooper MA, Wang WL, Boldin MP, Reddy P, Fehniger TA. MicroRNA-142 Is Critical for the Homeostasis and Function of Type 1 Innate Lymphoid Cells. Immunity 2019; 51:479-490.e6. [PMID: 31402259 DOI: 10.1016/j.immuni.2019.06.016] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [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: 02/21/2018] [Revised: 05/16/2019] [Accepted: 06/20/2019] [Indexed: 02/07/2023]
Abstract
Natural killer (NK) cells are cytotoxic type 1 innate lymphoid cells (ILCs) that defend against viruses and mediate anti-tumor responses, yet mechanisms controlling their development and function remain incompletely understood. We hypothesized that the abundantly expressed microRNA-142 (miR-142) is a critical regulator of type 1 ILC biology. Interleukin-15 (IL-15) signaling induced miR-142 expression, whereas global and ILC-specific miR-142-deficient mice exhibited a cell-intrinsic loss of NK cells. Death of NK cells resulted from diminished IL-15 receptor signaling within miR-142-deficient mice, likely via reduced suppressor of cytokine signaling-1 (Socs1) regulation by miR-142-5p. ILCs persisting in Mir142-/- mice demonstrated increased expression of the miR-142-3p target αV integrin, which supported their survival. Global miR-142-deficient mice exhibited an expansion of ILC1-like cells concurrent with increased transforming growth factor-β (TGF-β) signaling. Further, miR-142-deficient mice had reduced NK-cell-dependent function and increased susceptibility to murine cytomegalovirus (MCMV) infection. Thus, miR-142 critically integrates environmental cues for proper type 1 ILC homeostasis and defense against viral infection.
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Affiliation(s)
- Melissa M Berrien-Elliott
- Department of Medicine, Division of Oncology, Washington University School of Medicine, Saint Louis, MO, USA
| | - Yaping Sun
- Division of Hematology and Oncology, University of Michigan, Ann Arbor, MI, USA
| | - Carly Neal
- Department of Medicine, Division of Oncology, Washington University School of Medicine, Saint Louis, MO, USA
| | - Aaron Ireland
- Department of Medicine, Division of Oncology, Washington University School of Medicine, Saint Louis, MO, USA
| | - Maria C Trissal
- Department of Medicine, Division of Oncology, Washington University School of Medicine, Saint Louis, MO, USA
| | - Ryan P Sullivan
- Department of Medicine, Division of Oncology, Washington University School of Medicine, Saint Louis, MO, USA
| | - Julia A Wagner
- Department of Medicine, Division of Oncology, Washington University School of Medicine, Saint Louis, MO, USA
| | - Jeffrey W Leong
- Department of Medicine, Division of Oncology, Washington University School of Medicine, Saint Louis, MO, USA
| | - Pamela Wong
- Department of Medicine, Division of Oncology, Washington University School of Medicine, Saint Louis, MO, USA
| | - Annelise Y Mah-Som
- Department of Pediatrics, Division of Rheumatology, Washington University School of Medicine, Saint Louis, MO, USA
| | - Terrence N Wong
- Department of Medicine, Division of Oncology, Washington University School of Medicine, Saint Louis, MO, USA
| | - Timothy Schappe
- Department of Medicine, Division of Oncology, Washington University School of Medicine, Saint Louis, MO, USA
| | - Catherine R Keppel
- Department of Medicine, Division of Oncology, Washington University School of Medicine, Saint Louis, MO, USA
| | - Victor S Cortez
- Department of Pathology and Immunology, Washington University School of Medicine, Saint Louis, MO, USA
| | | | - Ming O Li
- Immunology Program, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Marco Colonna
- Department of Pathology and Immunology, Washington University School of Medicine, Saint Louis, MO, USA
| | - Daniel C Link
- Department of Medicine, Division of Oncology, Washington University School of Medicine, Saint Louis, MO, USA
| | - Anthony R French
- Department of Pediatrics, Division of Rheumatology, Washington University School of Medicine, Saint Louis, MO, USA
| | - Megan A Cooper
- Department of Pediatrics, Division of Rheumatology, Washington University School of Medicine, Saint Louis, MO, USA
| | - Wei-Le Wang
- Department of Molecular and Cellular Biology, Beckman Research Institute of the City of Hope, Duarte, CA, USA
| | - Mark P Boldin
- Department of Molecular and Cellular Biology, Beckman Research Institute of the City of Hope, Duarte, CA, USA
| | - Pavan Reddy
- Division of Hematology and Oncology, University of Michigan, Ann Arbor, MI, USA
| | - Todd A Fehniger
- Department of Medicine, Division of Oncology, Washington University School of Medicine, Saint Louis, MO, USA.
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Graham NM, Wang WL, Magilnick N, Lee J, Wang H, Zhang B, Marcucci G, Muschen M, Reyes E, Boldin MP. MicroRNA-142 Is an Essential Negative Regulator of B Cell Maturation and Malignant Transformation. The Journal of Immunology 2019. [DOI: 10.4049/jimmunol.202.supp.53.22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Abstract
microRNA-142 (miR-142) is expressed predominantly in cells of hematopoietic origin and plays a vital role in the regulation of innate and adaptive immunity. We have previously shown that miR-142 ablation in mice results in a marked expansion of the immature and mature B cell compartments. To better understand the role of miR-142 in B cell ontogenesis, we examined the early B cell development in miR-142 null mice using Hardy fraction analysis. Our findings indicate that miR-142 deletion significantly upregulates the frequency of pro-B cells, large pre-B cells, and immature B cells (Fractions B, C, and E), while decreasing the relative number of the earliest B cell progenitors (pre-pro-B cells; Fraction A). Our data links accumulation of pro-B and large pre-B cells in miR-142−/− bone marrow to an increase in their survival capacity. Moreover, we established miR-142 as a negative regulator of interleukein-7 receptor (IL7R), a cytokine receptor which plays a critical role in B cell maturation from pro-B to pre-B cell stage. In agreement with this notion, miR-142-deficient pro-B cells displayed elevated IL7R levels on their surface and proliferated more vigorously than WT cells in response to IL-7 stimulation in vitro. To test the effect of miR-142 dysregulation on malignant B cell transformation, we bred miR-142−/− mice with Eμ-myc transgenic mice, which spontaneously develop a mix of B cell lymphoblastic leukemia and lymphoma. Interestingly, miR-142 haploinsufficiency dramatically accelerated development of the disease in Eμ-myc transgenic mice. Collectively, our results establish miR-142 as an essential negative regulator of primary B cell development, whose dysregulation may contribute to malignant B cell transformation.
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Affiliation(s)
| | - Wei-Le Wang
- 1City of Hope Beckman Research Institute
- 2Irell & Manella Graduate School of Biological Science, City of Hope
| | | | - Jaewoong Lee
- 3Systems Biology, Beckman Research Institute, City of Hope
| | - Huafeng Wang
- 4Gehr Family Center for Leukemia Research, Hematology Malignancies and Stem Cell Transplantation Institute
| | - Bin Zhang
- 1City of Hope Beckman Research Institute
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Sun XL, Wang L, Yuan WP, Wang WL. [The role of PDK1 in the transition of endothelial to hematopoietic cells]. Zhonghua Xue Ye Xue Za Zhi 2019; 39:709-716. [PMID: 30369179 PMCID: PMC7342253 DOI: 10.3760/cma.j.issn.0253-2727.2018.09.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
Abstract
目的 研究磷酸肌醇依赖性激酶1(PDK1)在内皮细胞向造血细胞转化阶段对造血干细胞(HSC)发生的影响。 方法 应用Vec-Cre在内皮细胞中特异性敲除PDK1基因,取对照组PDK1fl/fl、PDK1fl/+小鼠及敲除组Vec-Cre;PDK1fl/fl小鼠胚胎的主动脉-性腺-中肾区(AGM区)细胞进行集落形成实验,检测PDK1基因对造血祖细胞功能的影响;取对照组和敲除组AGM区细胞行移植实验,检测PDK1对HSC功能的影响;取对照组和敲除组AGM区细胞,通过流式细胞术检测PDK1对能够向造血转化的CD31+c-Kithigh细胞群比例、细胞周期及细胞凋亡的影响;分选对照组和敲除组AGM区CD31+c-Kithigh细胞群,通过Real-time PCR检测PDK1对内皮向造血转换相关的转录因子(RUNX1、P2-RUNX1、GATA2)的影响。 结果 PDK1敲除后,造血祖细胞形成的克隆形态变小,数目减少[敲除组CFU-GM为(24±5)个/ee,对照组为(62±1)个/ee,P=0.001];破坏了造血干细胞重建造血及多向分化的能力(敲除组移植5只,0只重建,对照组移植7只,5只重建,P=0.001);AGM区CD31+c-Kithigh比例降低[敲除组CD31+c-Kithigh比例为(0.145±0.017)%,对照组比例为(0.385±0.04)%,P=0.001];并且AGM区由内皮细胞向造血细胞转换的关键转录因子表达下降,但对CD31+c-Kithigh细胞的增殖和凋亡无明显影响。 结论 在内皮细胞中特异敲除PDK1基因,导致具有向造血转化的内皮细胞群比例降低,影响了HSC的发生,破坏了HSC重建造血的能力。
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Affiliation(s)
- X L Sun
- Institute of Hematology & Blood Diseases Hospital, CAMS & PUMC, State Key Laboratory of Experimental Hematology, Tianjin 300020, China
| | | | | | - W L Wang
- Institute of Hematology & Blood Diseases Hospital, CAMS & PUMC, State Key Laboratory of Experimental Hematology, Tianjin 300020, China
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Wang WL, Jardine JE, Einerson BD. Can planned caesarean section prevent long-term urinary stress incontinence in twin pregnancy? BJOG 2018; 125:1694. [DOI: 10.1111/1471-0528.15455] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Zhao D, Ma XL, Wang WL, Zhang L. [Effectiveness evaluation between enhanced recovery after surgery and traditional treatment in unilateral total knee arthroplasty]. Zhonghua Yi Xue Za Zhi 2018; 98:519-523. [PMID: 29495221 DOI: 10.3760/cma.j.issn.0376-2491.2018.07.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the clinical effect of enhanced recovery after surgery (ERAS) in unilateral total knee arthroplasty (TKA). Methods: Retrospective analysis of 98 patients received unilateral TKA from September 2015 to September 2016 in the Orthopaedic Departmentof Affiliated Hospital of Logistics University of Chinese People's Armed Police Forces.Of the patients, 52 cases were treated by traditional operation (routine group) and the other 46 cases were treated with ERAS concept (ERAS group). The following data were gathered and statistically analyzed between the groups: gender, age, body mass index, preoperative hemoglobin, preoperative visual analogue scale (VAS) score, postoperative visible blood loss, postoperative hemoglobin at 24 hour after operation, blood transfusion rate, postoperative VAS score, length of hospital stay, the satisfaction rate, preoperative and 1 and 6 months postoperative evaluation with hospital for special surgery knee score (HSS), postoperative range of motion (ROM) of knees after 2 weeks, 1 month and 6 months of surgery, incidence rate of complications after surgery.Data between groups were analyzed with one-factor analysis of variance or chi-square test. Results: There was no significant difference in preoperative data between two groups.Postoperative visible blood loss of ERAS group was significantly lower than that in routine group[(224±59) vs (361±70) ml, t=4.723, P<0.01]; postoperative hemoglobin after 24 hours in ERAS group was significantly higher than that in routine group[(109±8) vs (96±10) g/L, t=-3.297, P=0.004]; blood transfusion rate of ERAS group was significantly lower than that in routine group[6.5 %(3/46) vs 46.2%(24/52), χ(2)=19.207, P<0.01]; the 12-hour and 48-hour postoperative VAS scores in ERAS groups were both significantly lower than those in routine group (t=3.708, 3.894, both P<0.05); length of hospital stay in ERAS group was significantly shorter than that in routine group[(6.8±1.2) vs (13.1±2.6) d, t=6.924, P<0.01]; HSS scores of ERAS groups at 1 month and 6 months after surgery were both significantly higher than those in routine group (t=-3.677, -3.594, both P<0.05); knees ROM in ERAS group at 2 weeks and 1 month after surgery were both significantly higher than those in routine group (t=-4.628, -4.442, both P<0.05); the rate of postoperative nausea vomiting in ERAS group was significantly lower than that in routine group[13.0%(6/46) vs 48.1%(25/52), χ(2)=13.852, P=0.002]. VAS score at 1 month after surgery, knees ROM at 6 months after surgery and the satisfaction rate were all comparable between the two groups (t=0.412, -1.026, χ(2)=3.695, all P>0.05). Conclusions: Condition of patients treated by unilateral TKA under ERAS model improves effectively during perioperative period when compared with routine treatment, patients have earlier rehabilitation and better experience in hospital and operation.
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Affiliation(s)
- D Zhao
- Orthopaedic Department, General Hospital of Tianjin Medical University, Tianjin 300052, China
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Wang WL, Zhang LH, Cao J, Li CF, Wang YG, Zhao YX. [Analyses of pathogenic factors and clinicopathological characteristics of vocal leukoplakia]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2018; 53:581-586. [PMID: 30121995 DOI: 10.3760/cma.j.issn.1673-0860.2018.08.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the pathogenic factors of vocal leukoplakia and its clinical and pathological features. Methods: Eighty-one patients with vocal cord leukoplakia who underwent surgery between February 2010 and December 2016 and 160 volunteers without pharyngeal symptoms designed as controls were included in this case control study. The clinicopathological characteristics of 81 patients were summarized and analyzed synthetically. Results: There was statistical significance in reflux symptom index(RSI), reflux finding score(RFS), smoking index, and drinking index between case group and control group(Z=-5.35, -4.82, -4.76, -2.44, P<0.05). The voice-using duration per day in case group was significantly longer than that of control group.There was no statistical significance in hospital anxiety and depression scale for anxiety(HADA) scores、hospital anxiety and depression scale for depression(HADD) scores between case group and control group(P>0.05). In 42 patients who received 24-hour dual probe pH monitoring the prevalence of pathologic LPR was 42.8%. In 81 patients, 39(48%)patients were pathologically diagnosed as squamous cell hyperplasia, 18(22%)patients as mild dysplasia, 12(15%)sides as moderate dysplasia , 10(12%)patients as severe dysplasia and 2(2%)patients as carcinoma in-situ. The average age of high-risk pathological vocal leukoplakia was significantly higher than that of low-risk leukoplakia(t=-2.73, P<0.01). The propotion of speckled leukoplakia in high-risk leukoplakia was significantly higher than that of low-risk leukoplakia(χ(2)=23.81, P<0.01). There was no statistical significance between high-risk leukoplakia and low-risk leukoplakia in the prevalence of pathologic LPR(P>0.05). The bilateral lesions, speckled leukoplakia were more likely to relapse(χ(2)=4.27, 12.17, P<0.05). The more serious the pathology, the more likely it was to relapse (Z=-2.168, P=0.03). There was no statistical significance between recurrence group and non-recurrence group in the prevalence of pathologic LPR(P>0.05). Conclusions: LPR, smoke constitute the risk factors of vocal cord leukoplakia. Drinking, voice abuse are related to vocal cord leukoplakia. Senile, speckled leukoplakia are more likely to be malignancy. A speckled leukoplakia, bilateral leukoplakia, severe pathological degree are important factors to predict recurrence.
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Affiliation(s)
- W L Wang
- Department of Otorhinolaryngology Head and Neck Surgery, Peking University People's Hospital, Beijing 100044, China
| | - L H Zhang
- Department of Otorhinolaryngology Head and Neck Surgery, Peking University People's Hospital, Beijing 100044, China
| | - J Cao
- Department of Otorhinolaryngology Head and Neck Surgery, Peking University People's Hospital, Beijing 100044, China
| | - C F Li
- Department of Otorhinolaryngology Head and Neck Surgery, Peking University People's Hospital, Beijing 100044, China
| | - Y G Wang
- Department of Otorhinolaryngology Head and Neck Surgery, Peking University People's Hospital, Beijing 100044, China
| | - Y X Zhao
- Department of Otorhinolaryngology Head and Neck Surgery, Peking University People's Hospital, Beijing 100044, China
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Li YH, Li FN, Duan YH, Guo QP, Wen CY, Wang WL, Huang XG, Yin YL. Low-protein diet improves meat quality of growing and finishing pigs through changing lipid metabolism, fiber characteristics, and free amino acid profile of the muscle. J Anim Sci 2018; 96:3221-3232. [PMID: 29992325 PMCID: PMC6095379 DOI: 10.1093/jas/sky116] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [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: 08/22/2017] [Accepted: 06/02/2018] [Indexed: 12/20/2022] Open
Abstract
The objective of the study was to investigate the effect of feeding reduced CP, AA-supplemented diets on meat quality in growing and finishing pigs as well as the related mechanism. In experiment 1, 18 growing pigs (36.5 kg BW) were assigned randomly and fed 1 of 3 corn-soybean meal diets containing either 18% CP (normal protein, NP), 15% CP (low protein, LP), or 12% CP (very low protein, VLP). In experiment 2, 18 finishing pigs (62.3 kg BW) were allotted randomly into 1 of the following diets: 16% CP (NP), 13% CP (LP), or 10% CP (VLP). In both experiments, the LP and VLP diets were supplemented with crystalline AA to achieve equal content of standardized ileal digestible lysine, methionine, threonine, and tryptophan. At the end of each experiment, all pigs were slaughtered to collect longissimus dorsi muscle (LM) samples. Samples were used for determining meat quality, intramuscular fat (IMF) content, fatty acid composition, free AA profile, and expression of genes for myosin heavy chain isoforms. Results showed that growing and finishing pigs fed the LP diets increased (P < 0.05) redness value of LM, while finishing pigs fed the LP and VLP diets decreased (P < 0.05) the shear force values. Compared with the NP diet, growing and finishing pigs fed lower CP diets had higher (P < 0.05) contents of IMF and MUFA, and lower (P < 0.05) contents of PUFA. Besides, higher (P < 0.05) expression levels of type I and/or IIa muscle fibers were observed in LP diet-fed growing and finishing pigs, and greater concentrations of taurine and tasty AA in VLP diet-fed growing and finishing pigs. Taken together, our results indicate that low-protein diets could positively affect meat quality of growing and finishing pigs, and likely through regulation of IMF content and fatty acid composition, fiber characteristics, and free AA profile in the muscle.
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Affiliation(s)
- Y H Li
- College of Animal Science and Technology, Hunan Agricultural University, Changsha, China
- Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, China
- Hunan Provincial Engineering Research Center for Healthy Livestock and Poultry Production, Changsha, China
- Scientific Observing and Experimental Station of Animal Nutrition and Feed Science in South-Central, Ministry of Agriculture, Changsha, China
- Hunan Co-Innovation Center of Animal Production Safety, CICAPS, Changsha, China
- Hunan Collaborative Innovation Center for Utilization of Botanical Functional Ingredients, Changsha, China
| | - F N Li
- Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, China
- Hunan Provincial Engineering Research Center for Healthy Livestock and Poultry Production, Changsha, China
- Scientific Observing and Experimental Station of Animal Nutrition and Feed Science in South-Central, Ministry of Agriculture, Changsha, China
- Hunan Co-Innovation Center of Animal Production Safety, CICAPS, Changsha, China
- Hunan Collaborative Innovation Center for Utilization of Botanical Functional Ingredients, Changsha, China
| | - Y H Duan
- Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, China
- Hunan Provincial Engineering Research Center for Healthy Livestock and Poultry Production, Changsha, China
- Scientific Observing and Experimental Station of Animal Nutrition and Feed Science in South-Central, Ministry of Agriculture, Changsha, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Q P Guo
- Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, China
- Hunan Provincial Engineering Research Center for Healthy Livestock and Poultry Production, Changsha, China
- Scientific Observing and Experimental Station of Animal Nutrition and Feed Science in South-Central, Ministry of Agriculture, Changsha, China
- University of Chinese Academy of Sciences, Beijing, China
| | - C Y Wen
- Laboratory of Animal Nutrition and Human Health, School of Biology, Hunan Normal University, Changsha, China
| | - W L Wang
- Laboratory of Animal Nutrition and Human Health, School of Biology, Hunan Normal University, Changsha, China
| | - X G Huang
- College of Animal Science and Technology, Hunan Agricultural University, Changsha, China
- Hunan Co-Innovation Center of Animal Production Safety, CICAPS, Changsha, China
- Hunan Collaborative Innovation Center for Utilization of Botanical Functional Ingredients, Changsha, China
| | - Y L Yin
- Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, China
- Hunan Provincial Engineering Research Center for Healthy Livestock and Poultry Production, Changsha, China
- Scientific Observing and Experimental Station of Animal Nutrition and Feed Science in South-Central, Ministry of Agriculture, Changsha, China
- Laboratory of Animal Nutrition and Human Health, School of Biology, Hunan Normal University, Changsha, China
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Wang WL, Ouyang C, Cassady K, Xiong M, Reyes E, Davis A, Tang K, Zeng D, Boldin M. MicroRNA-142 guards against autoimmunity by controlling Treg cell development and function. The Journal of Immunology 2018. [DOI: 10.4049/jimmunol.200.supp.101.2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Abstract
Regulatory T (Treg) cells are critical in preventing aberrant immune responses. Post-transcriptional gene control by microRNA (miRNA), a large class of small regulatory RNA, has recently emerged as a key genetic element required for Treg cell function. Nevertheless, specific miRNA gene(s) that play a vital role in the regulation of Treg cell activity are still unknown. Here we report that mice with Treg cell-specific ablation of miR-142 (hereafter Foxp3CremiR-142fl/fl mice) developed a fatal systemic autoimmune disorder due to a breakdown in peripheral T cell tolerance. Foxp3CremiR-142fl/fl mice displayed a sharp decrease in abundance and suppressive capacity of Treg cells. Analysis of miR-142-deficient Treg cells revealed excessive IFNγ production and dysregulated IFNγ signaling. We have identified several of the derepressed IFNγ-related genes, including Ifngr2 receptor and Hif1a transcription factor, as direct miR-142 targets. Furthermore, lowering the Hif1a gene dose in Treg cells significantly diminished the hyperactivation of peripheral effector T cells in Foxp3CremiR-142fl/flmice. Thus, miR-142 is an indispensable regulator of Treg cell development and function that mediates its control by attenuating IFNg response.
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Affiliation(s)
- Wei-Le Wang
- 1Irell and Manella Graduate School of Biological Sciences, Beckman Research Institute of the City of Hope, Duarte, CA 91010
- 2Department of Molecular and Cellular Biology, Beckman Research Institute of the City of Hope, Duarte, CA 91010
| | - Ching Ouyang
- 3Department of Information Science, Beckman Research Institute of the City of Hope, Duarte, CA 91010
| | - Kaniel Cassady
- 1Irell and Manella Graduate School of Biological Sciences, Beckman Research Institute of the City of Hope, Duarte, CA 91010
- 4Department of Diabetes Research, Beckman Research Institute, City of Hope, Duarte, CA 91010
| | - Min Xiong
- 1Irell and Manella Graduate School of Biological Sciences, Beckman Research Institute of the City of Hope, Duarte, CA 91010
- 2Department of Molecular and Cellular Biology, Beckman Research Institute of the City of Hope, Duarte, CA 91010
| | - Estefany Reyes
- 2Department of Molecular and Cellular Biology, Beckman Research Institute of the City of Hope, Duarte, CA 91010
| | - Alicia Davis
- 1Irell and Manella Graduate School of Biological Sciences, Beckman Research Institute of the City of Hope, Duarte, CA 91010
- 2Department of Molecular and Cellular Biology, Beckman Research Institute of the City of Hope, Duarte, CA 91010
| | - Kathie Tang
- 2Department of Molecular and Cellular Biology, Beckman Research Institute of the City of Hope, Duarte, CA 91010
| | - Defu Zeng
- 1Irell and Manella Graduate School of Biological Sciences, Beckman Research Institute of the City of Hope, Duarte, CA 91010
- 4Department of Diabetes Research, Beckman Research Institute, City of Hope, Duarte, CA 91010
| | - Mark Boldin
- 1Irell and Manella Graduate School of Biological Sciences, Beckman Research Institute of the City of Hope, Duarte, CA 91010
- 2Department of Molecular and Cellular Biology, Beckman Research Institute of the City of Hope, Duarte, CA 91010
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Wang WL, Li HW, Cao JZ, Zhang XQ, Song X, Jia SF, Jia HX. [Impacts of EGFR 19 exon mutations on brain metastases in treatment-naïve patients with lung adenocarcinoma]. Zhonghua Zhong Liu Za Zhi 2017; 39:744-748. [PMID: 29061017 DOI: 10.3760/cma.j.issn.0253-3766.2017.10.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the relationship between the status of epidermal growth factor receptor (EGFR) mutations and brain metastases in patients with lung adenocarcinoma. Methods: From August 2010 to May 2015, a total of 1 063 lung adenocarcinoma patients with identified status of EGFR mutations in Shanxi Cancer Hospital were enrolled, of which 456 patients had EGFR mutations. Multivariate Logistic regression model was used to analyze the correlation between EGFR mutation status and brain metastases in patients with lung adenocarcinoma. Results: In 125 patients with brain metastases before initial treatment, 65 patients had EGFR mutations, including 36 patients with deletion mutations in exon 19. The frequency of EGFR 19 exon mutation was 28.8% (36/125). Among 456 patients with EGFR mutations, 65(14.3%) patients were with brain metastases, in which 36(55.0%) had deletion mutations in exon 19. The multivariate analysis showed that age, Eastern Cooperative Oncology Group (ECOG) score, EGFR mutations and N staging were associated with brain metastases(P<0.05). Further subgroup multivariate analyses showed that age, ECOG score, mutation status in exon 19 and N staging were associated with brain metastases (P<0.05). Conclusions: EGFR mutation status is related to brain metastases. Mutations in EGFR exon 19 is an independent risk factor for brain metastases.
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Affiliation(s)
- W L Wang
- Department of Radiation Oncology, Shanxi Cancer Hospital, Taiyuan 030013, China
| | - H W Li
- Department of Radiation Oncology, Shanxi Cancer Hospital, Taiyuan 030013, China
| | - J Z Cao
- Department of Radiation Oncology, Shanxi Cancer Hospital, Taiyuan 030013, China
| | - X Q Zhang
- Department of Radiation Oncology, Shanxi Cancer Hospital, Taiyuan 030013, China
| | - X Song
- Department of Radiation Oncology, Shanxi Cancer Hospital, Taiyuan 030013, China
| | - S F Jia
- Department of Radiation Oncology, Shanxi Cancer Hospital, Taiyuan 030013, China
| | - H X Jia
- Department of Radiation Oncology, Shanxi Cancer Hospital, Taiyuan 030013, China
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Hong ZY, Yin JF, Zhai W, Yan N, Wang WL, Zhang J, Drinkwater BW. Dynamics of levitated objects in acoustic vortex fields. Sci Rep 2017; 7:7093. [PMID: 28769063 PMCID: PMC5540917 DOI: 10.1038/s41598-017-07477-1] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2016] [Accepted: 06/27/2017] [Indexed: 11/09/2022] Open
Abstract
Acoustic levitation in gaseous media provides a tool to process solid and liquid materials without the presence of surfaces such as container walls and hence has been used widely in chemical analysis, high-temperature processing, drop dynamics and bioreactors. To date high-density objects can only be acoustically levitated in simple standing-wave fields. Here we demonstrate the ability of a small number of peripherally placed sources to generate acoustic vortex fields and stably levitate a wide range of liquid and solid objects. The forces exerted by these acoustic vortex fields on a levitated water droplet are observed to cause a controllable deformation of the droplet and/or oscillation along the vortex axis. Orbital angular momentum transfer is also shown to rotate a levitated object rapidly and the rate of rotation can be controlled by the source amplitude. We expect this research can increase the diversity of acoustic levitation and expand the application of acoustic vortices.
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Affiliation(s)
- Z Y Hong
- Department of Applied Physics, Northwestern Polytechnical University, Xi'an, 710072, China.
| | - J F Yin
- Department of Applied Physics, Northwestern Polytechnical University, Xi'an, 710072, China
| | - W Zhai
- Department of Applied Physics, Northwestern Polytechnical University, Xi'an, 710072, China
| | - N Yan
- Department of Applied Physics, Northwestern Polytechnical University, Xi'an, 710072, China
| | - W L Wang
- Department of Applied Physics, Northwestern Polytechnical University, Xi'an, 710072, China
| | - J Zhang
- Department of Mechanical Engineering, University Walk, University of Bristol, Bristol, BS8 1TR, United Kingdom
| | - Bruce W Drinkwater
- Department of Mechanical Engineering, University Walk, University of Bristol, Bristol, BS8 1TR, United Kingdom
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Wu YH, Wang WL, Yan N, Wei B. Experimental investigations and phase-field simulations of triple-phase-separation kinetics within liquid ternary Co-Cu-Pb immiscible alloys. Phys Rev E 2017; 95:052111. [PMID: 28618464 DOI: 10.1103/physreve.95.052111] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2016] [Indexed: 11/07/2022]
Abstract
The phase-separation kinetics and microstructure evolution mechanisms of liquid ternary Co_{43}Cu_{40}Pb_{17} immiscible alloys are investigated by both the drop tube technique and phase-field method. Two successive phase separations take place during droplet falling and lead to the formation of a three-phase three-layer core-shell structure composed of a Co-rich core, a Cu-rich middle layer, and a Pb-rich shell. The Pb-rich shell becomes more and more conspicuous as droplet diameter decreases. Meanwhile, the Co-rich core center gradually moves away from the core-shell center. Theoretical analyses show that a larger temperature gradient inside a smaller alloy droplet induces the accelerated growth of the surface segregation shell during triple-phase separation. The residual Stokes motion and the asymmetric Marangoni convection result in the appearance of an eccentric Co-rich core and the core deviation degree is closely related to the droplet size and initial velocity. A three-dimensional phase-field model of ternary immiscible alloys, which considers the successive phase separations under the combined effects of Marangoni convection and surface segregation, is proposed to explore the formation mechanisms of three-phase core-shell structures. The simulated core-shell morphologies are consistent with the experimental observations, which verifies the model's validity in reproducing the core-shell dynamic evolution. Numerical results reveal that the development of three-phase three-layer core-shell structures can be attributed to the primary and then secondary phase separations dominated simultaneously by Marangoni convection and surface segregation. Furthermore, the effects of droplet temperature gradient on the growth kinetics of the surface segregation shell are analyzed in the light of phase-field theory.
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Affiliation(s)
- Y H Wu
- Department of Applied and Physics, Northwestern Polytechnical University, Xi'an 710072, People's Republic of China
| | - W L Wang
- Department of Applied and Physics, Northwestern Polytechnical University, Xi'an 710072, People's Republic of China
| | - N Yan
- Department of Applied and Physics, Northwestern Polytechnical University, Xi'an 710072, People's Republic of China
| | - B Wei
- Department of Applied and Physics, Northwestern Polytechnical University, Xi'an 710072, People's Republic of China
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Wang WL, Magilnick N, Reyes E, Boldin MP. Control of B cell development and malignant transformation by microRNA-142. The Journal of Immunology 2017. [DOI: 10.4049/jimmunol.198.supp.202.21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Abstract
MicroRNA-142 (miR-142) is a versatile posttranscriptional regulator that plays a crucial role in the regulation of both innate and adaptive immune responses. Abrogation of miR-142 expression in mice results in a profound immunodeficiency that is characterized by hypoimmunoglobulinemia and failure to mount robust humoral immune responses to soluble antigen challenges. Paradoxically, miR-142−/− mice display a significant expansion of the B cell compartment due to the accumulation of immature and mature B lymphocytes. To better understand the role of miR-142 in B cell ontogenesis, we examined the early B cell development in miR-142−/− mice using the Hardy fraction analysis. We found that miR-142 deletion results in a significant increase in the frequency of the pro-B and large pre-B cells (Fractions B and C), while the pre-pro-B cell population (Fraction A) decreased. In contrast, miR-142 ablation had little effect on the frequency of small pre-B cell and immature B cell populations. Furthermore, our data suggest that the accumulation of pro-B and large pre-B cells in miR-142−/− bone marrow is linked to an increase in their survival capacity.
Because genetic lesions that disrupt control of B cell maturation frequently contribute to the malignant transformation of B cells, we decided to examine the role of miR-142 dysregulation in B cell lymphomagenesis. To address this question, we bred miR-142−/− mice with Eμ-myc transgenic mice that spontaneously develop a mix of pre-B cell and mature B cell lymphomas. We found that miR-142 haploinsufficiency dramatically accelerated lymphoma development in this mouse model. Collectively, our results establish miR-142 as an essential negative regulator of B cell maturation and lymphomagenesis.
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Affiliation(s)
- Wei-Le Wang
- 1Department of Molecular and Cellular Biology
- 2Irell and Manella Graduate School of Biological Sciences, Beckman Research Institute of the City of Hope, Duarte, CA, USA
| | - Nathaniel Magilnick
- 1Department of Molecular and Cellular Biology
- 2Irell and Manella Graduate School of Biological Sciences, Beckman Research Institute of the City of Hope, Duarte, CA, USA
| | | | - Mark P Boldin
- 1Department of Molecular and Cellular Biology
- 2Irell and Manella Graduate School of Biological Sciences, Beckman Research Institute of the City of Hope, Duarte, CA, USA
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Wang WL, Hu L, Yang SJ, Wang A, Wang L, Wei B. Liquid Supercoolability and Synthesis Kinetics of Quinary Refractory High-entropy Alloy. Sci Rep 2016; 6:37191. [PMID: 27849012 PMCID: PMC5111100 DOI: 10.1038/srep37191] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2016] [Accepted: 09/20/2016] [Indexed: 11/09/2022] Open
Abstract
The high-entropy configuration of equiatomic multicomponent alloys opens an effective access to the development of advanced materials. Here we report the synthesis of a new quinary refractory WMoTaNbZr high-entropy alloy under electrostatic levitation condition. It showed a high liquidus temperature of 2686 K and achieved a maximum supercooling of 640 K (0.24 TL) at molten state. The containerless measurements revealed a linear increasing tendency for both its liquid state density and the specific heat to emissivity ratio versus alloy supercooling. A high-entropy body-centered cubic (HEB) phase dominated its phase constitution despite the formation of a negligible amount of solid solution (Zr) phase. The dendritic growth of HEB phase always governed the crystallization process, attained a fastest growth velocity of 13.5 m/s and displayed a power function relation to alloy supercooling. The high speed videographic research of recalescence phenomenon indicated Johnson-Mehl-Avrami type transition kinetics for its rapid solidification process. As supercooling increases, the microstructures of primary HEB phase were refined conspicuously and exhibited an obvious solute trapping effect of the segregative Zr component. Meanwhile, the Vickers hardness of HEB phase displayed the rising tendency with supercooling.
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Affiliation(s)
- W L Wang
- Department of Applied Physics, Northwestern Polytechnical University, Xi'an 710072, P. R. China
| | - L Hu
- Department of Applied Physics, Northwestern Polytechnical University, Xi'an 710072, P. R. China
| | - S J Yang
- Department of Applied Physics, Northwestern Polytechnical University, Xi'an 710072, P. R. China
| | - A Wang
- Department of Applied Physics, Northwestern Polytechnical University, Xi'an 710072, P. R. China
| | - L Wang
- Department of Applied Physics, Northwestern Polytechnical University, Xi'an 710072, P. R. China
| | - B Wei
- Department of Applied Physics, Northwestern Polytechnical University, Xi'an 710072, P. R. China
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Wang WL, Li MY, Guo WJ, Huang J, Ying XJ. [Comparative analysis of air quality in 31 cities between 2014 and 2015, China]. Zhonghua Yu Fang Yi Xue Za Zhi 2016; 50:914-916. [PMID: 27686772 DOI: 10.3760/cma.j.issn.0253-9624.2016.10.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Affiliation(s)
- W L Wang
- Shengzhou Center for Disease Control and Prevention, Shengzhou 312400, China
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Santos EJG, Wang WL. Ultrafast charge-transfer in organic photovoltaic interfaces: geometrical and functionalization effects. Nanoscale 2016; 8:15902-15910. [PMID: 27314747 DOI: 10.1039/c6nr02857h] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Understanding the microscopic mechanisms of electronic excitation in organic photovoltaic cells is a challenging problem in the design of efficient devices capable of performing sunlight harvesting. Here we develop and apply an ab initio approach based on time-dependent density functional theory and Ehrenfest dynamics to investigate photoinduced charge transfer in small organic molecules. Our calculations include mixed quantum-classical dynamics with ions moving classically and electrons quantum mechanically, where no experimental external parameter other than the material geometry is required. We show that the behavior of photocarriers in zinc phthalocyanine (ZnPc) and C60 systems, an effective prototype system for organic solar cells, is sensitive to the atomic orientation of the donor and the acceptor units as well as the functionalization of covalent molecules at the interface. In particular, configurations with the ZnPc molecules facing on C60 facilitate charge transfer between substrate and molecules that occurs within 200 fs. In contrast, configurations where ZnPc is tilted above C60 present extremely low carrier injection efficiency even at longer times as an effect of the larger interfacial potential level offset and higher energetic barrier between the donor and acceptor molecules. An enhancement of charge injection into C60 at shorter times is observed as binding groups connect ZnPc and C60 in a dyad system. Our results demonstrate a promising way of designing and controlling photoinduced charge transfer on the atomic level in organic devices that would lead to efficient carrier separation and maximize device performance.
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Affiliation(s)
- Elton J G Santos
- Department of Chemical Engineering, Stanford University, Stanford, California 94305, USA
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Li R, Li WB, Li Y, Xue L, Xie XP, Bao JX, Li JS, Wang WL. [Effect of hyperbaric oxygen therapy on antioxidant capacity in brains of rats after acute carbon monoxide poisoning]. Zhonghua Yi Xue Za Zhi 2016; 96:2192-2195. [PMID: 27464549 DOI: 10.3760/cma.j.issn.0376-2491.2016.27.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
OBJECTIVE This study was designed to observe the antioxidant effects of hyperbaric oxygen (HBO) on brains of rats after acute carbon monoxide (CO) poisoning. METHODS Sixty-six Sprague-Dawley (SD) male rats were divided into three groups including control group, CO group and HBO group.Morris water maze experiments were used for monitoring cognitive function.Antioxidant capacities were evaluated by detecting T-AOC, GSH-PX, GR and CAT activities in the brain. RESULTS Compared with the control group (45±17, 43±14, 35±12, 34±11, 29±13) s and the HBO group (40±10, 39±6, 35±9, 31±11, 21±10) s, the CO group (57±5, 54±8, 52±8, 52±10, 46±8) s had the longer escape latency (P<0.05). Compared with the control group (51±6) s and the HBO group(40±10) s, the CO group (8±5) s had the shorter swimming time in I quadrant (P<0.05). Compared with the control group (1.25±0.40) U/mg and the HBO group(0.97±0.31, 0.97±0.39, 1.45±0.15, 1.40±0.25, 1.20±0.20) U/mg, the CO group (0.68±0.09, 0.45±0.17, 0.71±0.18, 0.69±0.29, 0.48±0.29) U/mg had the lower T-AOC activity of brain tissue.The GSH-PX activity (42±13, 106±46, 197±49, 173±42, 429±58) U/mg in the CO group decreased compared with the control group (182±53) U/mg and the HBO group (203±63, 325±86, 389±29, 385±100, 453±32) U/mg.GR activity (4.3±0.7, 2.6±0.5, 3.0±1.2, 1.8±0.8, 3.2±1.9) U/mg in the CO group decreased compared with the control group(14.5±3.0) U/mg and the HBO group (13.9±3.3, 4.3±1.0, 3.9±0.7, 4.8±0.9, 4.6±0.9) U/mg.CAT activity (1.6±0.8, 4.3±1.6, 3.9±1.0, 8.5±2.6, 5.4±1.7) U/mg in the CO group decreased compared with the control group(5.2±1.3) U/mg and the HBO group (5.2±2.2, 8.8±2.8, 5.3±1.0, 9.2±2.1, 14.1±3.8) U/mg. CONCLUSIONS HBO can improve the behavior of rats after acute CO poisoning.The antioxidant capacity in rat brain tissue after acute CO poisoning decreases, while after the HBO therapy, the antioxidant capacity in rat brain tissue can increase.
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Affiliation(s)
- R Li
- Department of Aerospace Hygiene, School of Aerospace Medicine, Fourth Military Medical University, Xi'an 710032, China
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Guan L, Wang WL, Hai Y, Liu YZ, Chen XL, Chen L. [Clinical outcome of mid-term follow-up of anterior cervical non-fusion surgery versus anterior cervical discectomy and fusion for cervical spondylosis]. Zhonghua Yi Xue Za Zhi 2016; 96:1991-6. [PMID: 27470956 DOI: 10.3760/cma.j.issn.0376-2491.2016.25.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE To evaluate the clinical and radiological outcomes of artificial cervical disc replacement (Prodisc-C), dynamic cervical implant and anterior cervical discectomy and fusion (ACDF) in the treatment of cervical spondylosis. METHOD From May 2011 to May 2013, a total of 44 cervical spondylosis patients that received cervical disc arthroplasty (Prodisc-C), dynamic cervical implant (DCI) or ACDF were retrospectively reviewed in Orthopedics Department, Beijing Chaoyang Hospital, Capital Medical University.The patients were divided into three groups by surgical methods.Parameters as gender, age, the operation time, blood loss and average hospital stay of three groups were compared.The patients were followed 3 months, 6 months, 12 months and 24 months postoperatively.Neck disability index (NDI), Japanese Orthopaedic Association (JOA) Score and Visual Analogue Scale (VAS) were used to evaluate the clinical outcomes of the three groups.We also measured the cervical lordosis, range of motion of surgical segment and adjacent segment and height of disc at pre-op and post-op. RESULT All the patients were got at least 24 months follow-up.The differences between postoperative JOA, NDI and VAS scores and preoperative scores were of statistical significance (P<0.05). There was no statistical difference in average hospital stay, JOA, NDI and VAS recovery rate (P>0.05) among three groups.But the operative time and intraoperative blood loss were statistically different (P<0.05). Compared the pre-and postoperative ROM of C2-7, operative, upper and lower levels of each group respectively, the difference between pre-and postoperative ROM of ACDF group were of statistically significant [(16.6±3.6)°, (22.3±4.6)°, (18.1±3.1)°, P<0.05], while was no statistically significant of non-fusion group(P>0.05). There was no statistically significant difference between pre-and postoperative ROM of upper and lower levels among three groups (P>0.05), but had statistically difference in operative levels [(7.0±1.0) mm, (9.2±1.5) mm, (6.8±1.4) mm, P<0.05]. And there are no serious postoperative complications. CONCLUSION Two cervical non-fusion surgery and ACDF have received good clinical effects in the treatment of spondylotic myelopathy or radicular spondylosis.The artificial cervical disc replacement and dynamic cervical implant can not only recover cervical lordosis and keep the range of motion and stability of the surgical segment, but also reduce the incidence of compensatory motion at adjacent segments and will prevent from adjacent segment degeneration.
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Affiliation(s)
- L Guan
- Orthopedics Department, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, China
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Magilnick N, Reyes E, Wang WL, Kramer N, Boldin M. Unexpected separation of functions at the level of miR-146a targets regulates immune cell activation and malignant transformation. The Journal of Immunology 2016. [DOI: 10.4049/jimmunol.196.supp.202.21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Abstract
microRNA-146a (miR-146a) has been previously implicated as an essential molecular brake that prevents immune overreaction and malignant transformation by attenuating NF-κB signaling. miR-146a−/− mice display an autoimmune disorder, and also develop frank tumors in secondary lymphoid organs and a progressive myelodysplastic syndrome (MDS) as they age. miR-146a was proposed to exert its regulatory activity by targeting Traf6 and Irak1, genes which encode two key adapter proteins that function upstream of NF-κB activation. The exact contribution of miR-146a-mediated silencing of Traf6 and Irak1 to the control of immune activation is currently unknown. Therefore, we defined the role of the miR-146a-Traf6 axis in the regulation of immune homeostasis using mouse genetic epistasis analysis. Our studies have uncovered a unique separation of functions at the level of miR-146a targets. Lowering the Traf6 gene dose and consequent attenuation of NF-κB activation rescued many significant miR-146a−/− phenotypes such as splenomegaly, aberrant myeloproliferation, and excessive inflammatory responses. In contrast, decreasing Traf6 expression had no effect on the development of the MDS-like phenotype in aged miR-146a−/− mice, indicating that miR-146a controls hematopoietic stem cell (HSC) homeostasis through a different molecular mechanism. Our genetic data implicate excessive IFNγ production as the main driver of HSC exhaustion and bone marrow failure in miR-146a−/− mice. Furthermore, our findings suggest that control of the Traf6-NF-κB regulatory axis by miR-146a is not essential for its tumor suppressor activity, because lowering the Traf6 gene dose did not affect the rate of development of miR-146a-deficient lymphomas.
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Wang WL, Wu YH, Li LH, Geng DL, Wei B. Dynamic evolution process of multilayer core-shell microstructures within containerlessly solidifying Fe(50)Sn(50) immiscible alloy. Phys Rev E 2016; 93:032603. [PMID: 27078410 DOI: 10.1103/physreve.93.032603] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2015] [Indexed: 11/07/2022]
Abstract
Multilayer core-shell structures are frequently formed in polymers and alloys when temperature and concentration fields are well symmetrical spatially. Here we report that two- to five-layer core-shell microstructures were the dominant structural morphology of a binary Fe(50)Sn(50) immiscible alloy solidified under the containerless and microgravity states within a drop tube. Three dimensional phase field simulation reveals that both the uniformly dispersive structure and the multilayer core-shells are the various metastable and transitional states of the liquid phase separation process. Only the two-layer core-shell is the most stable microstructure with the lowest chemical potential. Because of the suppression of Stokes motion, solutal Marangoni migration becomes important to drive the evolution of core-shell structures.
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Affiliation(s)
- W L Wang
- MOE Key Laboratory of Space Applied Physics and Chemistry, Northwestern Polytechnical University, Xi'an 710072, People's Republic of China
| | - Y H Wu
- MOE Key Laboratory of Space Applied Physics and Chemistry, Northwestern Polytechnical University, Xi'an 710072, People's Republic of China
| | - L H Li
- MOE Key Laboratory of Space Applied Physics and Chemistry, Northwestern Polytechnical University, Xi'an 710072, People's Republic of China
| | - D L Geng
- MOE Key Laboratory of Space Applied Physics and Chemistry, Northwestern Polytechnical University, Xi'an 710072, People's Republic of China
| | - B Wei
- MOE Key Laboratory of Space Applied Physics and Chemistry, Northwestern Polytechnical University, Xi'an 710072, People's Republic of China
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Chen HS, Yang L, Huang LF, Wang WL, Hu Y, Jiang JJ, Zhou ZS. Temperature- and Relative Humidity-Dependent Life History Traits of Phenacoccus solenopsis (Hemiptera: Pseudococcidae) on Hibiscus rosa-sinensis (Malvales: Malvaceae). Environ Entomol 2015; 44:1230-1239. [PMID: 26314069 DOI: 10.1093/ee/nvv085] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [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: 10/13/2014] [Accepted: 05/15/2015] [Indexed: 06/04/2023]
Abstract
Phenacoccus solenopsis Tinsley (Hemiptera: Pseudococcidae), a worldwide distributive invasive pest, originated from the United States, and it was first reported in Guangdong province, China, in 2008. The effects of temperature and relative humidity (RH) on the life history traits of P. solenopsis on Hibiscus rosa-sinensis L. (Malvales: Malvaceae) were studied at seven constant temperatures (15, 20, 25, 27.5, 30, 32.5, and 35°C) and three RHs (45, 60, and 75%). The results showed that temperature, RH, and their interactions significantly influenced the life history traits of P. solenopsis. First instar was the most sensitive stage to extreme temperatures with very low survival rates at 15 and 35°C. At 25-32.5°C and the three RHs, the developmental periods of entire immature stage were shorter with values between 12.5-18.6 d. The minimum threshold temperature and the effective accumulative temperature for the pest to complete one generation were 13.2°C and 393.7 degree-days, respectively. The percentage and longevity of female adults significantly differed among different treatments. It failed to complete development at 15 or 35°C and the three RHs. Female fecundity reached the maximum value at 27.5°C and 45% RH. The intrinsic rate for increase (r), the net reproductive rate (R0), and the finite rate of increase (λ) reached the maximum values at 27.5°C and 45% RH (0.22 d(-1), 244.6 hatched eggs, and 1.25 d(-1), respectively). Therefore, we conclude that 27.5°C and 45% RH are the optimum conditions for the population development of the pest.
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Affiliation(s)
- H S Chen
- Guangxi Key Laboratory of Biology for Crop Diseases and Insect Pests, Institute of Plant Protection, Guangxi Academy of Agricultural Sciences, Nanning 530007, China. The authors contributed equally to this work
| | - L Yang
- Guangxi Key Laboratory of Biology for Crop Diseases and Insect Pests, Institute of Plant Protection, Guangxi Academy of Agricultural Sciences, Nanning 530007, China. The authors contributed equally to this work
| | - L F Huang
- Guangxi Key Laboratory of Biology for Crop Diseases and Insect Pests, Institute of Plant Protection, Guangxi Academy of Agricultural Sciences, Nanning 530007, China
| | - W L Wang
- Guangxi Key Laboratory of Biology for Crop Diseases and Insect Pests, Institute of Plant Protection, Guangxi Academy of Agricultural Sciences, Nanning 530007, China
| | - Y Hu
- Guangxi Key Laboratory of Biology for Crop Diseases and Insect Pests, Institute of Plant Protection, Guangxi Academy of Agricultural Sciences, Nanning 530007, China. College of Plant Protection, Yunnan Agricultural University, Kunming 650201, China
| | - J J Jiang
- Guangxi Key Laboratory of Biology for Crop Diseases and Insect Pests, Institute of Plant Protection, Guangxi Academy of Agricultural Sciences, Nanning 530007, China
| | - Z S Zhou
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China.
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Boldin M, Kramer N, Wang WL, Reyes E, Kumar B, Chen CC, Chandran R, Cantin E, Taganov K, Chau N. Control of mammalian hematopoiesis and humoral immune response by microRNA-142 (IRM10P.617). The Journal of Immunology 2015. [DOI: 10.4049/jimmunol.194.supp.131.15] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Abstract
MicroRNAs (miRNAs) are a class of powerful post-transcriptional regulators implicated in the control of diverse biological processes, including regulation of hematopoiesis and the immune response. To define the biological functions of miR-142, which is specifically and abundantly expressed in immune cells, we created a mouse line with targeted deletion of this gene. Our analysis of miR-142-/- mice revealed a critical role for this miRNA in the development and homeostasis of lymphocytes. Marginal zone B cells expand in the knockout spleen, while the number of T and B1 B cells in the periphery is reduced. Abnormal development of hematopoietic lineages in miR-142-/- animals is accompanied by a profound immunodeficiency, manifested by hypoimmunoglobulinemia and failure to mount a productive immune response to soluble antigens and virus. miR-142-/- B cells express elevated levels of BAFF receptor (BAFF-R) and as a result proliferate more robustly in response to BAFF stimulation. Lowering the BAFF-R gene dose in miR-142-/- mice rescued the B cell expansion defect, suggesting that BAFF-R is a bona fide miR-142 target through which it controls B cell homeostasis. Collectively, our results uncover miR-142 as an essential regulator of lymphocyte ontogenesis and suggest that lesions in this miRNA gene may lead to primary immunodeficiency.
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Affiliation(s)
- Mark Boldin
- 2Molecular and Cellular Biology, Beckman Res. Inst. of the City of Hope, Duarte, CA
| | - Nicholas Kramer
- 2Molecular and Cellular Biology, Beckman Res. Inst. of the City of Hope, Duarte, CA
| | - Wei-Le Wang
- 2Molecular and Cellular Biology, Beckman Res. Inst. of the City of Hope, Duarte, CA
| | - Estefany Reyes
- 2Molecular and Cellular Biology, Beckman Res. Inst. of the City of Hope, Duarte, CA
| | - Bijender Kumar
- 3Hematopoietic Stem Cell and Leukemia Research, Beckman Res. Inst. of the City of Hope, Duarte, CA
| | - Ching-Cheng Chen
- 3Hematopoietic Stem Cell and Leukemia Research, Beckman Res. Inst. of the City of Hope, Duarte, CA
| | | | - Edourad Cantin
- 1Virology, City of Hope Beckman Research Inst, Duarte, CA
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