1
|
Xie WJ, Liu M, Zhang X, Zhang YG, Jian ZH, Xiong XX. Astaxanthin suppresses LPS-induced myocardial apoptosis by regulating PTP1B/JNK pathway in vitro. Int Immunopharmacol 2024; 127:111395. [PMID: 38141411 DOI: 10.1016/j.intimp.2023.111395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Revised: 12/09/2023] [Accepted: 12/13/2023] [Indexed: 12/25/2023]
Abstract
PURPOSE Myocardial injury induced by sepsis can increase the patient's mortality, which is an important complication of sepsis. Myocardial apoptosis plays a key role in septic myocardial injury. Here we explored the potential mechanism of astaxanthin (ATX) inhibiting myocardial apoptosis induced by lipopolysaccharide (LPS) in vitro. METHODS The H9C2 cell experiment was conducted in three parts. In the first part, we set up three groups: control group, LPS group (10 µg/ml), a model of septic myocardial injury, and LPS + ATX (5, 10, 30 µM); In the second part, we set up four groups: control group, LPS group, LPS + PTP1B-IN-1, a protein tyrosine phosphatase 1B (PTP1B) inhibitor, and LPS + PTP1B-IN-1 + ATX; In the third part, we set up four groups: control group, LPS group, LPS + Anisomycin, a c-Jun N-terminal kinase (JNK) activator, and LPS + Anisomycin + ATX. We assessed H9C2 cell viability using the Cell Counting Kit-8 (CCK-8) assay. We observed cell apoptosis using flow cytometry analysis. We tested the mitochondrial membrane potential (ΔΨm) using JC-1 staining. To identify the molecular targets of ATX, Astaxanthin targets were predicted through the SwissTargetPrediction database. We verified the binding affinity of ATX and its targets using microscale thermophoresis (MST). We investigated the p-JNK expression using immunofluorescence staining. Finally, Western blot was used to evaluate PTP1B, JNK, p-JNK and the mitochondrial apoptosis-associated protein expression. RESULTS LPS inhibited H9C2 cell viability in a time-dependent manner and ATX treatment enhances H9C2 cell viability in a concentration dependent manner after LPS administration. ATX inhibited the LPS-induced apoptosis and loss of mitochondrial membrane potential in H9C2 cells. As predicted by the SwissTargetPrediction database, PTP1B was a potential target of ATX, and the interaction between ATX and PTP1B was further verified by MST. ATX attenuated the LPS-induced protein expression of PTP1B and p-JNK, regardless of PTP1B inhibition. Both immunofluorescence staining and Western blotting showed that ATX suppressed the LPS-induced p-JNK expression in H9C2 cells, regardless of Anisomycin administration. In addition, by adding Anisomycin to overexpress JNK, ATX inhibited the LPS-induced apoptosis, loss of mitochondrial membrane potential and upregulation of mitochondrial apoptosis-associated proteins in H9C2 cells via JNK signaling. CONCLUSION ATX inhibited LPS-induced mitochondrial apoptosis of H9C2 cells by PTP1B/JNK pathway and PTP1B was the target of ATX.
Collapse
Affiliation(s)
- Wen-Jie Xie
- Department of Critical Care Medicine, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, China
| | - Miao Liu
- Department of Gastroenterology, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, China
| | - Xu Zhang
- Central Laboratory, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, China
| | - Yong-Gang Zhang
- Central Laboratory, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, China
| | - Zhi-Hong Jian
- Central Laboratory, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, China.
| | - Xiao-Xing Xiong
- Central Laboratory, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, China.
| |
Collapse
|
2
|
Liu YF, Xie WJ, Xi P, Zhang ZC, Chen R, Fu SQ, Lei KY, Liu J, Cheng XF, Nie YC, Yang XR, Ma M, Sun T, Gong BB. Astaxanthin alleviates chronic prostatitis/chronic pelvic pain syndrome by increasing colonization of Akkermansia muciniphila in the intestine. Phytomedicine 2024; 123:155249. [PMID: 38056144 DOI: 10.1016/j.phymed.2023.155249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Revised: 11/12/2023] [Accepted: 11/24/2023] [Indexed: 12/08/2023]
Abstract
BACKGROUND Astaxanthin (AST) is a natural compound with anti-inflammatory/immunomodulatory properties that has been found to have probiotic properties. However, the role and mechanism of AST in chronic prostatitis/chronic pelvic pain syndrome (CP/CPPS) are still not fully understood. PURPOSE The aim of this study was to evaluate the effect of AST on CP/CPPS and elucidate the mediating role of the gut microbiota. MATERIALS AND METHODS An experimental autoimmune prostatitis (EAP) mouse model was utilized to test the potential role of AST on CP/CPPS. Antibiotic cocktail (ABX) treatment and fecal microbiota transplantation (FMT) were used to elucidate the gut microbiota-mediated effects on AST. In addition, 16S rRNA gene sequencing and qRT-PCR analyses were used to analyze changes in the gut microbiota of EAP mice and CP/CPPS patients. Finally, the mechanism by which AST exerts a protective effect on CP/CPPS was explored by untargeted metabolomics and gut barrier function assays. RESULTS Oral administration of AST reduced prostate inflammation scores, alleviated tactile sensitization of the pelvic region in EAP mice, reduced CD4+ T cell and CD68+ macrophage infiltration in the prostatic interstitium, and inhibited the up-regulation of systemic and localized pain/pro-inflammatory mediators in the prostate. After ABX, the protective effect of AST against CP/CPPS was attenuated, whereas colonization with fecal bacteria from AST-treated EAP mice alleviated CP/CPPS. 16S rRNA gene sequencing and qRT-PCR analyses showed that Akkermansia muciniphila in the feces of EAP mice and CP/CPPS patients showed a trend toward a decrease, which was associated with poor progression of CP/CPPS. In contrast, oral administration of AST increased the relative abundance of A. muciniphila, and oral supplementation with A. muciniphila also alleviated inflammation and pain in EAP mice. Finally, we demonstrated that both AST and A. muciniphila interventions increased serum levels of SCFAs acetate, up-regulated expression of colonic tight junction markers, and decreased serum lipopolysaccharide levels in EAP mice. CONCLUSION Our results showed that AST improved CP/CPPS by up-regulating A. muciniphila, which provides new potentially effective strategies and ideas for CP/CPPS management.
Collapse
Affiliation(s)
- Yi-Fu Liu
- Department of Urology, The First Affiliated Hospital of Nanchang University, Nanchang 330000, Jiangxi Province, China; Jiangxi Institute of Urology, Nanchang 330000, Jiangxi Province, China
| | - Wen-Jie Xie
- Department of Urology, The First Affiliated Hospital of Nanchang University, Nanchang 330000, Jiangxi Province, China; Jiangxi Institute of Urology, Nanchang 330000, Jiangxi Province, China
| | - Ping Xi
- Department of Urology, The First Affiliated Hospital of Nanchang University, Nanchang 330000, Jiangxi Province, China; Jiangxi Institute of Urology, Nanchang 330000, Jiangxi Province, China
| | - Zhi-Cheng Zhang
- Department of Urology, The First Affiliated Hospital of Nanchang University, Nanchang 330000, Jiangxi Province, China; Jiangxi Institute of Urology, Nanchang 330000, Jiangxi Province, China
| | - Ru Chen
- Department of Urology, The First Affiliated Hospital of Nanchang University, Nanchang 330000, Jiangxi Province, China; Jiangxi Institute of Urology, Nanchang 330000, Jiangxi Province, China
| | - Sheng-Qiang Fu
- Department of Proctology, The First Affiliated Hospital of Nanchang University, Nanchang 330000, Jiangxi Province, China
| | - Kun-Yang Lei
- Department of Urology, The First Affiliated Hospital of Nanchang University, Nanchang 330000, Jiangxi Province, China; Jiangxi Institute of Urology, Nanchang 330000, Jiangxi Province, China
| | - Ji Liu
- Department of Urology, The First Affiliated Hospital of Nanchang University, Nanchang 330000, Jiangxi Province, China; Jiangxi Institute of Urology, Nanchang 330000, Jiangxi Province, China
| | - Xiao-Feng Cheng
- Department of Urology, The First Affiliated Hospital of Nanchang University, Nanchang 330000, Jiangxi Province, China; Jiangxi Institute of Urology, Nanchang 330000, Jiangxi Province, China
| | - Ye-Chen Nie
- Department of Urology, The First Affiliated Hospital of Nanchang University, Nanchang 330000, Jiangxi Province, China; Jiangxi Institute of Urology, Nanchang 330000, Jiangxi Province, China
| | - Xiao-Rong Yang
- Department of Urology, The First Affiliated Hospital of Nanchang University, Nanchang 330000, Jiangxi Province, China; Jiangxi Institute of Urology, Nanchang 330000, Jiangxi Province, China
| | - Ming Ma
- Department of Urology, The First Affiliated Hospital of Nanchang University, Nanchang 330000, Jiangxi Province, China; Jiangxi Institute of Urology, Nanchang 330000, Jiangxi Province, China
| | - Ting Sun
- Department of Urology, The First Affiliated Hospital of Nanchang University, Nanchang 330000, Jiangxi Province, China; Jiangxi Institute of Urology, Nanchang 330000, Jiangxi Province, China.
| | - Bin-Bin Gong
- Department of Urology, The First Affiliated Hospital of Nanchang University, Nanchang 330000, Jiangxi Province, China; Jiangxi Institute of Urology, Nanchang 330000, Jiangxi Province, China.
| |
Collapse
|
3
|
Li JA, Wang L, Xie WJ, Zhou WX. Evolving community structure in the international pesticide trade networks. Heliyon 2023; 9:e21076. [PMID: 37928009 PMCID: PMC10623292 DOI: 10.1016/j.heliyon.2023.e21076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Revised: 10/04/2023] [Accepted: 10/15/2023] [Indexed: 11/07/2023] Open
Abstract
The statistical properties of the international trade networks of all commodities as a whole have been extensively studied. However, the international trade networks of individual commodities often behave differently. Due to the importance of pesticides in agricultural production and food security, we investigated the evolving community structure in the international pesticide trade networks (iPTNs) of five categories from 2007 to 2018. We reveal that the community structures in the undirected and directed iPTNs exhibit regional patterns. However, the regional patterns are very different for undirected and directed networks and for different categories of pesticides. Moreover, the community structure is more stable in the directed iPTNs than in the undirected iPTNs. We also extract the intrinsic community blocks for the directed international trade networks of each pesticide category. It is found that the largest intrinsic community block is the most stable, appears in every pesticide category, and contains important economies (Belgium, Germany, Spain, France, the United Kingdom, Italy, the Netherlands, and Portugal) in Europe. Other important and stable intrinsic community blocks are Canada and the United States in North America, Argentina and Brazil in South America, and Australia and New Zealand in Oceania. These results suggest that, in the international trade of pesticides, geographic distance and the complementarity of important and adjacent economies are significant factors.
Collapse
Affiliation(s)
- Jian-An Li
- School of Business, East China University of Science and Technology, Shanghai 200237, China
| | - Li Wang
- International Elite Engineering School, East China University of Science and Technology, Shanghai 200237, China
- Research Center for Econophysics, East China University of Science and Technology, Shanghai 200237, China
| | - Wen-Jie Xie
- School of Business, East China University of Science and Technology, Shanghai 200237, China
- Research Center for Econophysics, East China University of Science and Technology, Shanghai 200237, China
| | - Wei-Xing Zhou
- School of Business, East China University of Science and Technology, Shanghai 200237, China
- Research Center for Econophysics, East China University of Science and Technology, Shanghai 200237, China
- School of Mathematics, East China University of Science and Technology, Shanghai 200237, China
| |
Collapse
|
4
|
Wang TH, Hao R, Xu BN, Chang L, Liu ZB, Yao JL, Wang W, Xie WJ, Yan WW, Xiao ZJ, Qiu LG, An G. [Safety and feasibility of 120 min rapid infusion regimen of daratumumab in patients with multiple myeloma]. Zhonghua Xue Ye Xue Za Zhi 2023; 44:696-699. [PMID: 37803849 PMCID: PMC10520231 DOI: 10.3760/cma.j.issn.0253-2727.2023.08.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Indexed: 10/08/2023]
Affiliation(s)
- T H Wang
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - R Hao
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - B N Xu
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - L Chang
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - Z B Liu
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - J L Yao
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - W Wang
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - W J Xie
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - W W Yan
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - Z J Xiao
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - L G Qiu
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - G An
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| |
Collapse
|
5
|
Xie WJ, Li J. Obesity and cancer stem cells: Roles in cancer initiation, progression and therapy resistance. World J Stem Cells 2023; 15:120-135. [PMID: 37181008 PMCID: PMC10173809 DOI: 10.4252/wjsc.v15.i4.120] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 01/28/2023] [Accepted: 03/17/2023] [Indexed: 04/26/2023] Open
Abstract
Obesity, the global pandemic since industrialization, is the number one lifestyle-related risk factor for premature death, which increases the incidence and mortality of various diseases and conditions, including cancer. In recent years, the theory of cancer stem cells (CSCs), which have the capacity for self-renewal, metastasis and treatment resistance, has been bolstered by increasing evidence. However, research on how obesity affects CSCs to facilitate cancer initiation, progression and therapy resistance is still in its infancy, although evidence has already begun to accumulate. Regarding the ever-increasing burden of obesity and obesity-related cancer, it is pertinent to summarize evidence about the effects of obesity on CSCs, as elucidating these effects will contribute to the improvement in the management of obesity-related cancers. In this review, we discuss the association between obesity and CSCs, with a particular focus on how obesity promotes cancer initiation, progression and therapy resistance through CSCs and the mechanisms underlying these effects. In addition, the prospect of preventing cancer and targeting the mechanisms linking obesity and CSCs to reduce cancer risk or to improve the survival of patients with cancer is considered.
Collapse
Affiliation(s)
- Wen-Jie Xie
- Department of General Surgery, The Third Hospital of Mianyang, Sichuan Mental Health Center, Mianyang 621000, Sichuan Province, China
| | - Jian Li
- Department of General Surgery, The Third Hospital of Mianyang, Sichuan Mental Health Center, Mianyang 621000, Sichuan Province, China
| |
Collapse
|
6
|
Xie WJ, Li X, Li YH, Zhang P, Ran YG, Zhang X, Li JH, Su L. Prognostic Significance of Advanced Lung Cancer Inflammation Index, a Nutritional and Inflammation Index, in Patients With Gastrointestinal Cancers: A Meta-analysis. Nutr Cancer 2023; 75:1233-1242. [PMID: 36895192 DOI: 10.1080/01635581.2023.2186267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/11/2023]
Abstract
Previous studies have investigated the prognostic value of the advanced lung cancer inflammation index (ALI) in gastrointestinal (GI) cancers; however, the results are controversial. This meta-analysis aimed to evaluate the prognostic and clinicopathological role of ALI in patients with GI cancers. A systematic search of electronic databases was conducted to evaluate the prognostic and clinicopathological value of ALI in GI cancers. Nine studies comprising 3,750 patients were included in this meta-analysis. The pooled results showed that a low ALI was significantly associated with worse overall survival (OS, hazard ratio [HR] = 1.95, 95% confidence interval [CI] = 1.53-2.47, P < 0.001, I2 = 63.9%) and disease-free survival/relapse-free survival (DFS/RFS, HR = 1.49, 95% CI = 1.28-1.73, P < 0.001, I2 = 0%) in patients with GI cancers. In addition, decreased ALI correlated with the depth of tumor invasion and presence of distant metastasis and tended to be associated with male sex, high carcinoembryonic antigen levels, lymph node metastasis, and right-sided colon cancer. Low ALI was associated with adverse OS and DFS/RFS in patients with GI cancer. In addition, decreased ALI also correlated with clinicopathological factors, indicating higher stage of the malignancy.
Collapse
Affiliation(s)
- Wen-Jie Xie
- Department of General Surgery, Baoding First Central Hospital, Baoding, China
| | - Xiang Li
- School of Clinical Medicine, Hebei University, Baoding, China
| | - Yan-Hong Li
- Department of Radiotherapy, Affiliated Hospital of Hebei University, Baoding, China
| | - Peng Zhang
- Department of General Surgery, Baoding First Central Hospital, Baoding, China
| | - Yu-Ge Ran
- Department of Radiotherapy, Affiliated Hospital of Hebei University, Baoding, China
| | - Xi Zhang
- Department of Radiotherapy, Affiliated Hospital of Hebei University, Baoding, China
| | - Jing-Hua Li
- Department of Hepatobiliary Surgery, Affiliated Hospital of Hebei University, Baoding, China
| | - Lei Su
- Department of Radiotherapy, Affiliated Hospital of Hebei University, Baoding, China
| |
Collapse
|
7
|
Xiao K, Zhao F, Xie W, Ding J, Gong X, OuYang C, Le AP. Mechanism of TLR4 mediated immune effect in transfusion-induced acute lung injury based on Slit2/Robo4 signaling pathway. Transfus Apher Sci 2023; 62:103500. [PMID: 35853810 DOI: 10.1016/j.transci.2022.103500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Revised: 06/29/2022] [Accepted: 07/04/2022] [Indexed: 11/25/2022]
Abstract
BACKGROUND Transfusion-related acute lung injury (TRALI) is the infusion of blood or blood system. OBJECTIVE To explore the mechanism of TLR4-mediated T cell immune effect in TRALI. METHODS In this animal study, a mouse model of LPS-induced TRALI was established. Sixty adult C57/BL6 mice (wild-type, WT) were randomly divided into 5 groups: 1) normal WT type, 2) LPS control group of WT type lipopolysaccharide, 3) WT type TRALI group (LPS + MHC-I mAb), 4) (TLR4 antibody) lipopolysaccharide LPS control group, 5) (TLR4 antibody) TRALI group (LPS + MHC-I mAb). Mice were injected with LPS (0.1 mg/kg) and MHC-I mAb (2 mg/kg) into the tail vein. H&E staining was performed to detect pathological features. The myeloperoxidase (MPO) activity and the level of inflammatory cytokines in lung tissue homogenate supernatant were measured. Blood, spleen single-cell suspension, and bronchoalveolar lavage fluid were collected to detect the ratio of Treg and Th17 cells by flow cytometry. RT-PCR and WB were used to detect mRNA or protein expression. RESULTS TLR4 mAb treatment alleviated the pathogenesis of LPS-induced TRALI in vivo, the MPO activity, and the level of proinflammatory factors in lung tissues. TLR4 exerted its function by changing of Treg/Th17 ratio via the SLIT2/ROBO4 signaling pathway and downregulating CDH5 and SETSIP. CONCLUSION TLR4 mediates immune response in the LPS-induced TRALI model through the SLIT2/ROBO4 signaling pathway.
Collapse
Affiliation(s)
- Kun Xiao
- Department of Transfusion Medicine, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, China
| | - Fei Zhao
- Department of Neurology, The First Affiliated Hospital of Nanchang University, Nanchang 330006, China
| | - WenJie Xie
- Department of Urology, The First Affiliated Hospital of Nanchang University, Nanchang 330006, China
| | - Jian Ding
- Department of Intensive Care Unit, The First Affiliated Hospital of Nanchang University, Nanchang 330006, China
| | - XiaoAn Gong
- Department of Urology, Fengcheng People's Hospital, Fengcheng 331100, China
| | - ChenSi OuYang
- Department of Urology, Yichun People's Hospital, Yichun 336000, China
| | - Ai Ping Le
- Department of Transfusion Medicine, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, China.
| |
Collapse
|
8
|
Qin XP, Geng DL, Xie WJ, Wei B. Acoustic manipulation dynamics of levitated particle with screw-shaped reflecting surface. Rev Sci Instrum 2022; 93:064506. [PMID: 35778049 DOI: 10.1063/5.0093655] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Accepted: 06/01/2022] [Indexed: 06/15/2023]
Abstract
Existing single-axis acoustic levitation devices with an axisymmetric reflector can manipulate particles in a variety of ways. However, the mechanism by which particles are suspended in a single-axis acoustic levitator with a non-axisymmetric reflector remains poorly understood. This work addresses this issue by proposing a novel single-axis ultrasonic levitator design that includes a flat plane emitter and a screw-plane reflector. The node positions of the standing wave formed in this levitator were predicted by calculating the Gor'kov potential according to a numerical model. The analysis results demonstrate that the nodes were distributed off-axis and their positions varied in a spiral manner when changing the distance between the emitter and reflector. Corresponding experiments based on the proposed design were also conducted, and the results indicated that the distance changes between the emitter and reflector could induce some spiral trajectories of a polyethylene-foam particle placed in the ultrasonic field. Moreover, the trajectory of the suspended particle was found to distribute along a conical surface centered on the central axis of this device. This work provides a new approach for ultrasonic particle manipulation by changing the geometry of the reflector.
Collapse
Affiliation(s)
- X P Qin
- School of Physical Science and Technology, Northwestern Polytechnical University, Xi'an 710072, China
| | - D L Geng
- School of Physical Science and Technology, Northwestern Polytechnical University, Xi'an 710072, China
| | - W J Xie
- School of Physical Science and Technology, Northwestern Polytechnical University, Xi'an 710072, China
| | - B Wei
- School of Physical Science and Technology, Northwestern Polytechnical University, Xi'an 710072, China
| |
Collapse
|
9
|
An JF, Li H, Yang F, Xie WJ, Li PF, Liu J, Cui D, Zhou G. [Effect of PKC inhibitor on renal podocyte slit diaphragm protein expression in exhausted rats]. Zhongguo Ying Yong Sheng Li Xue Za Zhi 2022; 38:126-131. [PMID: 36031569 DOI: 10.12047/j.cjap.6213.2022.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Objective: To investigate the expression level of podocyte slit diaphragm protein in rats after one-time exhaustive exercise, to explore the effect of PKC inhibitor on the protein expression level, and to reveal the mechanism of PKC in the formation of exercise-induced proteinuria. Methods: Thirty male SD rats were randomly divided into control group (C), exercise group (E) and exercise combining with PKC inhibitor group (EPI), with 10 rats in each group. Rats in group E and EPI performed one single bout of exhaustive exercise (25 m/min), rats in group EPI were intraperitoneally injected with a PKC inhibitor (chelerythrine, 5 mg/kg) 1 day and 1 hour before exercise respectively, while rats in group C and E were injected with the same volume of saline. Results: ①Compared with group C, the levels of urine protein, uric acid, urine sugar, blood urea, and blood uric acid of rats in group E were increased significantly (P<0.05), the level of blood glucose was reduced significantly (P<0.01), and renal ROS production was increased significantly (P<0.01). The expressions of nephrin and podocin protein in renal tissue were decreased significantly (P< 0.05), while the expressions of PKC, Nox2, and Nox4 protein were increased significantly (P<0.05). ②Compared with group E, the levels of urinary protein,urine glucose and blood urea in EPI group were decreased significantly (P<0.05), the level of blood glucose was increased significantly (P<0.01), renal ROS production was reduced significantly (P<0.01). the expressions of nephrin and podocin protein in renal tissues of the EPI group were increased significantly (P<0.05), while the expressions of PKC and Nox2 protein was reduced significantly (P<0.05, P<0.01). Conclusion: One-time exhaustive exercise can down-regulate the expressions of nephrin and podocin through PKC/Nox/ROS pathways in the kidney of rats; PKC inhibitor alleviates the decrease in the expression of podocyte slit diaphragm protein caused by exhaustive exercise, and prevents the occurrence of exercise-induced proteinuria.
Collapse
Affiliation(s)
- Jing-Fang An
- College of Physical Education, Hunan University, Changsha 410000, China
| | - Hang Li
- College of Physical Education, Hunan University, Changsha 410000, China
| | - Fan Yang
- College of Physical Education, Hunan University, Changsha 410000, China
| | - Wen-Jie Xie
- College of Physical Education, Hunan University, Changsha 410000, China
| | - Peng-Fei Li
- College of Physical Education, Hunan University, Changsha 410000, China
| | - Jiao Liu
- College of Physical Education, Hunan University, Changsha 410000, China
| | - Di Cui
- College of Physical Education, Hunan University, Changsha 410000, China
| | - Gang Zhou
- College of Physical Education, Hunan University, Changsha 410000, China
| |
Collapse
|
10
|
Lei KY, Xie WJ, Fu SQ, Ma M, Sun T. A comparison of the da Vinci Xi vs. da Vinci Si surgical systems for radical prostatectomy. BMC Surg 2021; 21:409. [PMID: 34847882 PMCID: PMC8638093 DOI: 10.1186/s12893-021-01406-w] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Accepted: 11/15/2021] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND To compare the perioperative and short-term efficacy and cost of the da Vinci Xi and da Vinci Si surgical systems for radical prostatectomy. METHODS We retrospectively analyzed the clinical data of 175 patients with prostate cancer who underwent radical prostatectomy with the da Vinci Si or Xi surgical systems in our hospital from June 2019 to June 2020. Of the 175 patients, 82 underwent robot-assisted laparoscopic radical prostatectomy with the da Vinci Xi surgery system, and 93 patients underwent robot-assisted laparoscopic radical prostatectomy with the da Vinci Si surgical system. The perioperative outcomes, short-term efficacy and costs were compared between the two groups. RESULTS The anesthesia time, operation time, docking time, indwelling catheter time and postoperative bed rest time in the Xi group were shorter than those in the Si group (respectively, 268.8 min vs. 219.3 min, P = 0.001; 228.2 min vs. 259.6 min, P < 0.001; 7.4 min vs. 12.7 min, P < 0.001; 8.6 d vs. 9.7 d, P = 0.036; 2.2 d vs. 2.6 d, P = 0.002). However, the total cost of hospitalization and the cost of intraoperative consumables in the Xi group were higher than those in the Si group (84,740.7 vs. 76,739.1 ¥, P = 0.003; 13,199.4 vs. 10,823.0 ¥, P = 0.019). CONCLUSIONS Although the cost of robot-assisted radical prostatectomy is higher, compared with the Si system, the Xi system has better perioperative outcomes and can provide similar short-term efficacy and oncology outcomes.
Collapse
Affiliation(s)
- Kun-Yang Lei
- Department of Urology, The First Affiliated Hospital of Nanchang University, Nanchang, 330000, Jiangxi, China
| | - Wen-Jie Xie
- Department of Urology, The First Affiliated Hospital of Nanchang University, Nanchang, 330000, Jiangxi, China
| | - Sheng-Qiang Fu
- Department of Urology, The First Affiliated Hospital of Nanchang University, Nanchang, 330000, Jiangxi, China
| | - Ming Ma
- Department of Urology, The First Affiliated Hospital of Nanchang University, Nanchang, 330000, Jiangxi, China
| | - Ting Sun
- Department of Urology, The First Affiliated Hospital of Nanchang University, Nanchang, 330000, Jiangxi, China.
| |
Collapse
|
11
|
Xie WJ, Zhou G, Li PF, Yang F, An JF, Li H. [Effect of swimming training on the expression of PKC δ/p66Shc protein in mouse myocardium]. Zhongguo Ying Yong Sheng Li Xue Za Zhi 2021; 37:688-693. [PMID: 34821107 DOI: 10.12047/j.cjap.6160.2021.079] [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 effects of different intensity of swimming training on p66Shc protein in mouse myocardium. Methods: Fifty Kunming mice were randomly divided into control group (Group C), weight-bearing swimming group (Group E), weight-bearing swimming + drug group (Group ER), non weight-bearing swimming group (Group P), non weight-bearing swimming + drug group (Group PR), with 10 mice in each group. Group C did not exercise. Groups E, ER, P, and PR received swimming training for 4 weeks. Groups E and ER performed weight-bearing swimming with a 3% body weight, and Group P and Group PR were swimming without weight-bearing, 60 min/d, 6 times/w. Mice in ER and PR groups were injected intraperitoneally with Rottlerin (0.3 mg/kg), a PKCδ inhibitor, before the last two exercises. Groups C, E, and P were injected with the same dose of normal saline. Samples were collected after training finished for 24 hours. The protein expressions of PKCδ, P-PKCδ, P66Shc, P-P66shc and NOX2 were detected by Western blot; PKCδ and P66Shc were detected by immunoprecipitation; malondialdehyde (MDA), reactive oxygen species (ROS) and superoxide dismutase (SOD) in myocardium and serum were analyzed by biochemistry. Results: Compared with Group C, the protein expressions of PKCδ, P-PKCδ, P66Shc, P-P66shc and NOX2 in Group E were increased significantly (P< 0.01), the serum and myocardial MDA levels, myocardial ROS were increased significantly (P<0.05 or P<0.01), and the myocardial SOD activity was decreased (P<0.01), the PKCδ, P-PKCδ, P-P66shc and NOX2 in Group P were increased significantly (P<0.05 or P<0.01), and the myocardial SOD activity was enhanced (P<0.05). Compared with Group E, the protein expressionS of PKCδ (P<0.01), P-PKCδ (P<0.01), P66Shc (P<0.05), P-P66shc (P<0.01), NOX2 (P<0.05) in Group ER was decreased significantly, the protein expression of P66Shc in Group P was decreased significantly (P<0.05), the myocardial MDA (P<0.01) and ROS (P<0.05) were decreased, and the activity of SOD was enhanced (P<0.01). Compared with Group P, the protein expressions of PKCδ, P-PKCδ and P-P66shc in Group PR were decreased significantly (P<0.01), while the expression of NOX2 was increased (P<0.05). Conclusion: Both swimming training of two intensities promoted the increase of PKCδ protein and its phosphorylation in mouse cardiomyocytes. High-intensity swimming training could significantly enhance the expression and phosphorylation level of p66Shc protein, resulting in the production of ROS and the decrease of antioxidant enzyme activity. Low-intensity swimming training enhanced the phosphorylation of p66Shc, but did not promote its protein expression, resulting in the enhancement of myocardial antioxidant capacity and exercise adaptation.
Collapse
Affiliation(s)
- Wen-Jie Xie
- College of Physical Education, Hunan University, Changsha 410000, China
| | - Gang Zhou
- College of Physical Education, Hunan University, Changsha 410000, China
| | - Peng-Fei Li
- College of Physical Education, Hunan University, Changsha 410000, China
| | - Fan Yang
- College of Physical Education, Hunan University, Changsha 410000, China
| | - Jing-Fang An
- College of Physical Education, Hunan University, Changsha 410000, China
| | - Hang Li
- College of Physical Education, Hunan University, Changsha 410000, China
| |
Collapse
|
12
|
Liu YF, Fu SQ, Yan YC, Gong BB, Xie WJ, Yang XR, Sun T, Ma M. Progress in Clinical Research on Gonadotropin-Releasing Hormone Receptor Antagonists for the Treatment of Prostate Cancer. Drug Des Devel Ther 2021; 15:639-649. [PMID: 33623372 PMCID: PMC7896730 DOI: 10.2147/dddt.s291369] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Accepted: 01/20/2021] [Indexed: 01/04/2023]
Abstract
Gonadotropin-releasing hormone (GnRH) receptor agonists are still the most commonly used androgen deprivation treatment (ADT) drugs for prostate cancer in clinical practice. Currently, the GnRH receptor antagonists used for endocrine therapy for prostate cancer primarily include degarelix and relugolix (TAK-385). The former is administered by subcutaneous injection, while the latter is an oral drug. Compared to GnRH agonists, GnRH antagonists reduce serum testosterone levels more rapidly without an initial testosterone surge or subsequent microsurges. This review focuses on the mechanism of action of GnRH antagonists and agonists, the developmental history of GnRH antagonists, and emerging data from clinical studies of the two antagonists used as endocrine therapy for prostate cancer.
Collapse
Affiliation(s)
- Yi-Fu Liu
- Department of Urology, The First Affiliated Hospital of Nanchang University, Nanchang, 330000, Jiangxi Province, People's Republic of China
| | - Sheng-Qiang Fu
- Department of Urology, The First Affiliated Hospital of Nanchang University, Nanchang, 330000, Jiangxi Province, People's Republic of China
| | - Yu-Chang Yan
- Department of Urology, The First Affiliated Hospital of Nanchang University, Nanchang, 330000, Jiangxi Province, People's Republic of China
| | - Bin-Bin Gong
- Department of Urology, The First Affiliated Hospital of Nanchang University, Nanchang, 330000, Jiangxi Province, People's Republic of China
| | - Wen-Jie Xie
- Department of Urology, The First Affiliated Hospital of Nanchang University, Nanchang, 330000, Jiangxi Province, People's Republic of China
| | - Xiao-Rong Yang
- Department of Urology, The First Affiliated Hospital of Nanchang University, Nanchang, 330000, Jiangxi Province, People's Republic of China
| | - Ting Sun
- Department of Urology, The First Affiliated Hospital of Nanchang University, Nanchang, 330000, Jiangxi Province, People's Republic of China
| | - Ming Ma
- Department of Urology, The First Affiliated Hospital of Nanchang University, Nanchang, 330000, Jiangxi Province, People's Republic of China
| |
Collapse
|
13
|
Chen Q, Li ZL, Fu SQ, Wang SY, Liu YT, Ma M, Yang XR, Xie WJ, Gong BB, Sun T. Development of prognostic signature based on RNA binding proteins related genes analysis in clear cell renal cell carcinoma. Aging (Albany NY) 2021; 13:3926-3944. [PMID: 33461173 PMCID: PMC7906138 DOI: 10.18632/aging.202360] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Accepted: 11/20/2020] [Indexed: 12/27/2022]
Abstract
RNA binding proteins (RBPs) play significant roles in the development of tumors. However, a comprehensive analysis of the biological functions of RBPs in clear cell renal cell carcinoma (ccRCC) has not been performed. Our study aimed to construct an RBP-related risk model for prognosis prediction in ccRCC patients. First, RNA sequencing data of ccRCC were downloaded from The Cancer Genome Atlas (TCGA) database. Three RBP genes (EIF4A1, CARS, and RPL22L1) were validated as prognosis-related hub genes by univariate and multivariate Cox regression analyses and were integrated into a prognostic model by least absolute shrinkage and selection operator (LASSO) Cox regression analysis. According to this model, patients with high risk scores displayed significantly worse overall survival (OS) than those with low risk scores. Moreover, the multivariate Cox analysis results indicated that risk score, tumor grade, and tumor stage were significantly correlated with patient OS. A nomogram was constructed based on the three RBP genes and showed a good ability to predict outcomes in ccRCC patients. In conclusion, this study identified a three-RBP gene risk model for predicting the prognosis of patients, which is conducive to the identification of novel diagnostic and prognostic molecular markers.
Collapse
Affiliation(s)
- Qiang Chen
- Department of Urology, The First Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi Province, China
| | - Zhi-Long Li
- Department of Urology, The First Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi Province, China
| | - Sheng-Qiang Fu
- Department of Urology, The First Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi Province, China
| | - Si-Yuan Wang
- Department of Urology, The First Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi Province, China
| | - Yu-Tang Liu
- Department of Urology, The First Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi Province, China
| | - Ming Ma
- Department of Urology, The First Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi Province, China
| | - Xiao-Rong Yang
- Department of Urology, The First Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi Province, China
| | - Wen-Jie Xie
- Department of Urology, The First Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi Province, China
| | - Bin-Bin Gong
- Department of Urology, The First Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi Province, China
| | - Ting Sun
- Department of Urology, The First Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi Province, China
| |
Collapse
|
14
|
Zhou WX, Wang L, Xie WJ, Yan W. Predicting highway freight transportation networks using radiation models. Phys Rev E 2020; 102:052314. [PMID: 33327199 DOI: 10.1103/physreve.102.052314] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2020] [Accepted: 11/01/2020] [Indexed: 11/07/2022]
Abstract
Highway freight transportation (HFT) plays an important role in the economic activities. Predicting HFT networks is not only scientifically significant in the understanding of the mechanism governing the formation and dynamics of these networks, but also of practical significance in highway planning and design for policymakers and truck allocation and route planning for logistic companies. In this work we apply parameter-free radiation models to predict the HFT network in mainland China and assess their predictive performance using metrics based on links and fluxes, which can be done in reference to the real directed and weighted HFT network between 338 Chinese cities constructed from about 15.06 million truck transportation records in five months. It is found that the radiation models exhibit relatively high accuracy in predicting links but low accuracy in predicting fluxes on links. Similar to gravity models, radiation models also suffer difficulty in predicting long-distance links and the fluxes on them. Nevertheless, the radiation models perform well in reproducing several scaling laws of the HFT network. The adoption of population or gross domestic product in the model has a minor impact on the results, and replacing the geographic distance by the path length taken by most truck drivers does not improve the results.
Collapse
Affiliation(s)
- Wei-Xing Zhou
- School of Business, East China University of Science and Technology, Shanghai 200237, China.,Department of Mathematics, East China University of Science and Technology, Shanghai 200237, China.,Research Center for Econophysics, East China University of Science and Technology, Shanghai 200237, China
| | - Li Wang
- School of Business, East China University of Science and Technology, Shanghai 200237, China
| | - Wen-Jie Xie
- School of Business, East China University of Science and Technology, Shanghai 200237, China.,Research Center for Econophysics, East China University of Science and Technology, Shanghai 200237, China
| | - Wanfeng Yan
- Research Center for Econophysics, East China University of Science and Technology, Shanghai 200237, China.,Zhicang Technologies, Beijing 100016, China
| |
Collapse
|
15
|
Huang YF, Xie WJ, Fan HY, Du J. Comparative Risks of High-Grade Adverse Events Among FDA-Approved Systemic Therapies in Advanced Melanoma: Systematic Review and Network Meta-Analysis. Front Oncol 2020; 10:571135. [PMID: 33178599 PMCID: PMC7593404 DOI: 10.3389/fonc.2020.571135] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Accepted: 09/07/2020] [Indexed: 01/03/2023] Open
Abstract
Background: Head-to-head evidence is lacking in comparative risks of high-grade adverse events (AEs) among different systemic treatment options for advanced melanoma. Methods: An up-to-date systematic review and network meta-analysis (NMA) was performed. Randomized controlled trials (RCTs) of patients with advanced melanoma were eligible if at least one intervention was the Food and Drug Administration-approved targeted or immune checkpoint inhibitors. Risks of high-grade AEs were estimated by random-effects Bayesian NMAs, based on relative risks. Surface under the cumulative ranking probabilities was used to assess relative ranking of treatments. The summary incidences were calculated. Results: Twenty-five RCTs (12,925 patients) comparing 10 different systemic treatment options were included. BRAF/MEK had the highest risk of overall high-grade AEs (pooled incidence: 32.11%). BRAF had the highest risk of high-grade arthralgia (0.39%), whereas MEK had the highest risk of high-grade hypertension (2.28%) and nausea (0.37%). Cytotoxic T-lymphocyte antigen 4 (CTLA-4)/chemo had the highest risk of high-grade diarrhea (1.31%), alanine aminotransferase (0.60%), and aspartate aminotransferase elevation (0.59%). Programmed cell death 1 (PD-1)/CTLA-4 had the highest risks of high-grade pyrexia (1.14%) and rash (0.94%). Using PD-1 inhibitor alone had the lowest risks of overall high-grade AEs. Conclusions: Different systemic treatment options have varying high-grade AEs in advanced melanoma treatment. Current evidences highlight the important risks of BRAF/MEK, CTLA-4/chemo, and PD-1/CTLA-4.
Collapse
Affiliation(s)
- Ya-Fang Huang
- School of General Practice and Continuing Education, Capital Medical University, Beijing, China
| | - Wen-Jie Xie
- Department Clinical Research, University of Bern, Bern, Switzerland
| | - Hai-Yu Fan
- Center of Stroke, Beijing Institute for Brain Disorders, Capital Medical University, Beijing, China
| | - Juan Du
- School of General Practice and Continuing Education, Capital Medical University, Beijing, China
| |
Collapse
|
16
|
Xiao K, Zhao F, Xie W, Ding J, Gong X, OuYang C, Le A. Withdrawal Notice: Molecular Mechanism of TLR4 Mediated T Cell Immune Effect in Transfusion-induced Acute Lung Injury based on Slit2/Robo4 Signaling Pathway. Curr Mol Pharmacol 2020; 13:CMP-EPUB-110525. [PMID: 33030140 DOI: 10.2174/1874467213666201007125021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Revised: 08/07/2020] [Accepted: 08/10/2020] [Indexed: 11/22/2022]
Abstract
Bentham Science has decided to withdraw this article due to the purposeful breach of COPE guidelines and the copyright agreement by the authors as they had submitted this paper simultaneously to another journal. Bentham Science apologizes to the readers of the journal for any inconvenience this may have caused. The Bentham Editorial Policy on Article Withdrawal can be found at https://benthamscience.com/editorial-policiesmain.php Bentham Science Disclaimer It is a condition of publication that manuscripts submitted to this journal have not been published and will not be simultaneously submitted or published elsewhere. Furthermore, any data, illustration, structure or table that has been published elsewhere must be reported, and copyright permission for reproduction must be obtained. Plagiarism is strictly forbidden, and by submitting the article for publication the authors agree that the publishers have the legal right to take appropriate action against the authors, if plagiarism or fabricated information is discovered. By submitting a manuscript, the authors agree that the copyright of their article is transferred to the publishers if and when the article is accepted for publication.
Collapse
Affiliation(s)
- Kun Xiao
- Department of Blood Transfusion, First Affiliated Hospital of Nanchang University, Nanchang 330006,
China
| | - Fei Zhao
- Department of Neurology, First Affiliated Hospital of Nanchang University, Nanchang 330006,
China
| | - WenJie Xie
- Department of Urology, the First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi,
China
| | - Jian Ding
- Department of General Surgery, Affiliated Hospital of Jiangxi University of Traditional Chinese
Medicine, Nanchang, Jiangxi, China
| | - XiaoAn Gong
- Department of Urology, Fengcheng People's Hospital, Fengcheng,
Jiangxi 331100, China
| | - ChenSi OuYang
- Department of Urology, Yichun People's Hospital, Yichun, Jiangxi, 336000, China
| | - AiPing Le
- Department of Blood Transfusion, First Affiliated Hospital of Nanchang University, Nanchang 330006,
China
| |
Collapse
|
17
|
Fu SQ, Zhuang CS, Yang XR, Xie WJ, Gong BB, Liu YF, Liu J, Sun T, Ma M. Comparison of robot-assisted retroperitoneal laparoscopic adrenalectomy versus retroperitoneal laparoscopic adrenalectomy for large pheochromocytoma: a single-centre retrospective study. BMC Surg 2020; 20:227. [PMID: 33028297 PMCID: PMC7539373 DOI: 10.1186/s12893-020-00895-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Accepted: 09/29/2020] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND To evaluate the feasibility and safety of robot-assisted retroperitoneal laparoscopic adrenalectomy (RARLA) for large pheochromocytomas (PHEOs; size≥6 cm) compared with retroperitoneal laparoscopic adrenalectomy (RLA). METHODS Fifty-one patients who underwent adrenalectomy for large PHEOs between March 2016 and January 2019 were enrolled and divided into two groups, including 32 RLA cases and 19 RARLA cases. We compared the perioperative efficacy and long-term follow-up results between the two groups. RESULTS Preoperative data, including demographics, comorbidities and tumour characteristics, were similar between the groups. Intraoperatively, the RARLA group had a lower incidence of haemodynamic instability (26.3% vs. 56.2%, P = 0.038) and less intraoperative blood loss (100 ml vs. Two hundred milliliter, P = 0.042) than the RLA group. The groups showed no significant differences in operative time or transfusion rates. Postoperatively, the time to diet resumption, time to ambulation, time to drainage removal and postoperative hospital stay were shorter in the RARLA group than in the RLA group (1 d vs. 2 d, P = 0.027; 1 d vs. 2 d, P = 0.034; 3 d vs. 5 d, P = 0.002; 5 d vs. 6 d, P = 0.02, respectively). The groups exhibited no significant differences in the duration of anaesthetic use, complications, or long-term follow-up results for the blood pressure (BP) improvement rate. CONCLUSIONS Compared with RLA, RARLA is a safe, feasible and even optimized procedure for large PHEOs.
Collapse
Affiliation(s)
- Sheng-Qiang Fu
- Department of Urology, the First Affiliated Hospital of Nanchang University, Nanchang, 330000, Jiangxi Province, China
| | - Chang-Shui Zhuang
- Union Shenzhen Hospital, Huazhong University of Science and Technology, Shenzhen, 518052, China
| | - Xiao-Rong Yang
- Department of Urology, the First Affiliated Hospital of Nanchang University, Nanchang, 330000, Jiangxi Province, China
| | - Wen-Jie Xie
- Department of Urology, the First Affiliated Hospital of Nanchang University, Nanchang, 330000, Jiangxi Province, China
| | - Bin-Bin Gong
- Department of Urology, the First Affiliated Hospital of Nanchang University, Nanchang, 330000, Jiangxi Province, China
| | - Yi-Fu Liu
- Department of Urology, the First Affiliated Hospital of Nanchang University, Nanchang, 330000, Jiangxi Province, China
| | - Ji Liu
- Department of Urology, the First Affiliated Hospital of Nanchang University, Nanchang, 330000, Jiangxi Province, China
| | - Ting Sun
- Department of Urology, the First Affiliated Hospital of Nanchang University, Nanchang, 330000, Jiangxi Province, China
| | - Ming Ma
- Department of Urology, the First Affiliated Hospital of Nanchang University, Nanchang, 330000, Jiangxi Province, China.
| |
Collapse
|
18
|
Xie WJ, Hou G, Wang L, Wang SS, Xiong XX. Astaxanthin suppresses lipopolysaccharide‑induced myocardial injury by regulating MAPK and PI3K/AKT/mTOR/GSK3β signaling. Mol Med Rep 2020; 22:3338-3346. [PMID: 32945516 PMCID: PMC7453592 DOI: 10.3892/mmr.2020.11443] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [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: 08/06/2019] [Accepted: 04/16/2020] [Indexed: 12/16/2022] Open
Abstract
Cardiac dysfunction is a significant manifestation of sepsis and it is associated with the prognosis of the disease. Astaxanthin (ATX) has been discovered to serve a variety of pharmacological effects, including anti‑inflammatory, antioxidant and antiapoptotic properties. The present study aimed to investigate the role and mechanisms of ATX in sepsis‑induced myocardial injury. Male C57BL/6 mice were divided into three groups (15 mice per group): Control group, lipopolysaccharide (LPS) group and LPS + ATX group. The cardiac dysfunction model was induced through an intraperitoneal injection of LPS (10 mg/kg) and ATX (40 mg/kg) was administered to the LPS + ATX group by intraperitoneal injection 30 min following the administration of LPS. All animals were sacrificed after 24 h. Inflammatory cytokine levels in the serum were detected using ELISAs, and cardiac B‑type natriuretic peptide (BNP) levels were analyzed using western blot analysis and reverse transcription‑quantitative PCR. Furthermore, the extent of myocardial injury was evaluated using pathological analysis, and cardiomyocyte apoptosis was analyzed using a TUNEL assay, in addition to determining the expression levels of Bcl‑2 and Bax. The expression levels of proteins involved in the mitogen activated protein kinase (MAPK) and PI3K/AKT signaling pathways were also analyzed using western blot analysis. ATX significantly suppressed the LPS‑induced increased production of TNF‑α and IL‑6 and suppressed the protein expression levels of BNP, Bax and Bcl‑2 to normal levels. ATX also prevented the histopathological changes to the myocardial tissue and reduced the extent of necrosis. Furthermore, the treatment with ATX suppressed the LPS‑activated MAPK and PI3K/AKT signaling. ATX additionally exerted a protective effect on cardiac dysfunction caused by sepsis by inhibiting MAPK and PI3K/AKT signaling.
Collapse
Affiliation(s)
- Wen-Jie Xie
- Department of Critical Care Medicine, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China
| | - Guo Hou
- Department of Critical Care Medicine, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China
| | - Lu Wang
- Department of Critical Care Medicine, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China
| | - Sha-Sha Wang
- Department of Critical Care Medicine, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China
| | - Xiao-Xing Xiong
- Central Laboratory, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China
| |
Collapse
|
19
|
|
20
|
Abstract
Multifractality is ubiquitously observed in complex natural and socioeconomic systems. Multifractal analysis provides powerful tools to understand the complex nonlinear nature of time series in diverse fields. Inspired by its striking analogy with hydrodynamic turbulence, from which the idea of multifractality originated, multifractal analysis of financial markets has bloomed, forming one of the main directions of econophysics. We review the multifractal analysis methods and multifractal models adopted in or invented for financial time series and their subtle properties, which are applicable to time series in other disciplines. We survey the cumulating evidence for the presence of multifractality in financial time series in different markets and at different time periods and discuss the sources of multifractality. The usefulness of multifractal analysis in quantifying market inefficiency, in supporting risk management and in developing other applications is presented. We finally discuss open problems and further directions of multifractal analysis.
Collapse
Affiliation(s)
- Zhi-Qiang Jiang
- Research Center for Econophysics, East China University of Science and Technology, Shanghai 200237, People's Republic of China. Department of Finance, School of Business, East China University of Science and Technology, Shanghai 200237, People's Republic of China
| | | | | | | |
Collapse
|
21
|
Huang YF, Xie WJ, Fan HY, Du J. Comparative Safety of PD-1/PD-L1 Inhibitors for Cancer Patients: Systematic Review and Network Meta-Analysis. Front Oncol 2019; 9:972. [PMID: 31632907 PMCID: PMC6779807 DOI: 10.3389/fonc.2019.00972] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2019] [Accepted: 09/13/2019] [Indexed: 12/19/2022] Open
Abstract
Background: Comprehensive evidence comparing treatment-related adverse events (trAEs) among PD-1/PD-L1 inhibitors is unavailable. Methods: A systematic review and network meta-analysis (NMA) was conducted. Randomized controlled trials in cancer patients treated with PD1/PD-L1 inhibitors or their combinations with chemotherapy/placebo and compared with PD1/PD-L1 inhibitors/chemotherapy/placebo were identified through comprehensive searches of multiple databases. Bayesian NMA was performed using random-effects model. Relative ranking of treatments was assessed with surface under the cumulative ranking (SUCRA) probabilities. Incidences and odds ratios of trAEs and immune-related adverse events (irAEs) of all-grade (Grade 1–5) and high-grade (Grade 3–5) were estimated. Results: Twenty-three RCTs (14,204 patients) comparing six different strategies were included. The incidence of trAEs was lowest for PD-L1 inhibitors (all-grade: pooled incidence = 60.4%, SUCRA = 77.2%; high-grade: 6.4, 73.8%). PD-L1 inhibitors plus chemotherapy had the highest incidence of all-grade trAEs (88.6, 10.1%), while PD-1 inhibitors plus chemotherapy had the highest incidence of high-grade trAEs (8.2, 9.3%). The use of PD-1/PD-L1 inhibitors alone was associated with significant reductions on high-grade trAEs, compared with PD-1/PD-L1 inhibitors plus chemotherapy. PD-1 inhibitors had the highest incidence of irAEs (all-grade: 15.1, 9.5%; high-grade: 3.5, 16.8%). Compared with PD-L1 inhibitors, PD-1 inhibitors neither increased trAEs nor irAEs significantly. Results from sensitivity analyses were consistent. Conclusions: Current data showed that PD-L1 inhibitors had the best safety on both trAEs and irAEs. Awareness of the comparative safety could promote further appropriate utilization of PD-1/PD-L1 inhibitors in clinical practice.
Collapse
Affiliation(s)
- Ya-Fang Huang
- School of General Practice and Continuing Education, Capital Medical University, Beijing, China
| | - Wen-Jie Xie
- Department Clinical Research, University of Bern, Bern, Switzerland
| | - Hai-Yu Fan
- Center of Stroke, Beijing Institute for Brain Disorders, Capital Medical University, Beijing, China
| | - Juan Du
- School of General Practice and Continuing Education, Capital Medical University, Beijing, China
| |
Collapse
|
22
|
Yin LJ, Liang YL, Zhang SH, Wang M, Li L, Xie WJ, Zhong H, Jian X, Xu X, Wang X, Deng LJ. A novel strategy to motivate the luminescence efficiency of a phosphor: drilling nanoholes on the surface. Chem Commun (Camb) 2018; 54:3480-3483. [PMID: 29560987 DOI: 10.1039/c7cc09842a] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A facile approach to fabricate nanoholes on the surface of a phosphor via a carbothermal reaction between C and BaMgAl10O17 was adopted. Drilling nanoholes greatly enhanced excitation light absorption and consequently increased the quantum efficiency, which provided new insight to help improve the luminescence efficiency of oxygen-containing phosphors.
Collapse
Affiliation(s)
- Liang-Jun Yin
- School of Energy Science and Engineering, University of Electronic Science and Technology of China, 2006 Xiyuan Road, Chengdu, P. R. China.
| | - Ying-Lin Liang
- School of Mechatronics Engineering, University of Electronic Science and Technology of China, 2006 Xiyuan Road, Chengdu 611731, P. R. China
| | - Sheng-Hui Zhang
- School of Energy Science and Engineering, University of Electronic Science and Technology of China, 2006 Xiyuan Road, Chengdu, P. R. China.
| | - Meng Wang
- School of Energy Science and Engineering, University of Electronic Science and Technology of China, 2006 Xiyuan Road, Chengdu, P. R. China.
| | - Langkai Li
- Parkathings Amorphous Material Technology Co., Ltd, Xiamen 361005, People's Republic of China
| | - Wen-Jie Xie
- School of Materials and Chemical Engineering, Anhui Jianzhu University, Hefei, P. R. China
| | - Hao Zhong
- Laboratory of Materials for Energy Conversion, Department of Materials Science and Engineering, University of Science and Technology of China, Hefei, P. R. China
| | - Xian Jian
- School of Energy Science and Engineering, University of Electronic Science and Technology of China, 2006 Xiyuan Road, Chengdu, P. R. China.
| | - Xin Xu
- Laboratory of Materials for Energy Conversion, Department of Materials Science and Engineering, University of Science and Technology of China, Hefei, P. R. China
| | - Xin Wang
- National Engineering Research Center of Electromagnetic Radiation Control Materials, University of Electronic Science and Technology of China, 2006 Xiyuan Road, Chengdu, P. R. China
| | - Long-Jiang Deng
- National Engineering Research Center of Electromagnetic Radiation Control Materials, University of Electronic Science and Technology of China, 2006 Xiyuan Road, Chengdu, P. R. China
| |
Collapse
|
23
|
Wang ZP, Wang D, Wang CL, Xie WJ, Zhu YF, Chen XW. Transcriptome characterization of HPG axis from Chinese sea perch Lateolabrax maculatus. J Fish Biol 2017; 91:1407-1418. [PMID: 28913865 DOI: 10.1111/jfb.13459] [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] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/25/2015] [Accepted: 08/15/2017] [Indexed: 06/07/2023]
Abstract
Here the transcriptome and differential gene expression in the adult brain and gonads of the Chinese sea perch Lateolabrax maculatus were reported. A total of 78 256 909 clean reads were generated from the adult brain, ovary and testis by using the Illumina HiSeq2000 platform and assembled into 274 909 contigs. A total of 31 683 unigenes were annotated based on sequence similarity and 20 702 unigenes were found to exhibit 8237 gene ontology terms and 3888 signal pathways. Transcripts of 26 623 unigenes were present in all of the tissues, whereas pairwise comparisons revealed that 671/367, 496/315 and 1668/580 unigenes were up-down regulated by at least two-fold between the brain and ovary, ovary and testis and brain and testis, respectively. Homology search led to the identification of reproduction-associated genes of the brain-gonad axis, including those involved in sex differentiation and maintenance. The data provided an integrated and comprehensive transcriptome resource for L. maculatus, which could be used for further research on hypothalamus-pituitary-gonad axis gene function, reproduction regulation and sex-biased gene expression.
Collapse
Affiliation(s)
- Z P Wang
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai, 201306, China
| | - D Wang
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai, 201306, China
| | - C L Wang
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai, 201306, China
| | - W J Xie
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai, 201306, China
| | - Y F Zhu
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai, 201306, China
| | - X W Chen
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai, 201306, China
| |
Collapse
|
24
|
Liu J, Li G, Xie WJ, Wang L, Zhang R, Huang KS, Zhou QS, Chen DC. Lipopolysaccharide Stimulates Surfactant Protein-A in Human Renal Epithelial HK-2 Cells through Upregulating Toll-like Receptor 4 Dependent MEK1/2-ERK1/2-NF-κB Pathway. Chin Med J (Engl) 2017; 130:1236-1243. [PMID: 28485325 PMCID: PMC5443031 DOI: 10.4103/0366-6999.205853] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2017] [Indexed: 11/05/2022] Open
Abstract
BACKGROUND Surfactant protein-A (SP-A) contributes to the regulation of sepsis-induced acute kidney injury. In a previous study, we demonstrated that the expression of SP-A in the human renal tubular epithelial (HK-2) cells can be stimulated by lipopolysaccharide (LPS). The present study evaluated the possible signal-transducing mechanisms of LPS-induced SP-A biosynthesis in the HK-2 cells. METHODS Tetrazolium salt colorimetry (MTT) assay was used to detect cell viability of HK-2 cells after LPS stimulation on different time points. HK-2 cells were stimulated with 100 ng/ml of LPS for different durations to determine the effects of LPS on SP-A and toll-like receptor 4 (TLR4) messenger RNA (mRNA) expression, as well as phosphorylation of mitogen-activated/extracellular signal-regulated kinase (MEK) 1, extracellular signal-regulated kinase 1/2 (ERK1/2), p38 mitogen-activated protein kinase (p38MAPK), and nuclear factor-kappa B (NF-κB) inhibitor-alpha (IkB-α). Then, HK-2 cells were pretreated with CLI-095, a TLR4 inhibitor, to analyze mRNA and protein levels of SP-A and TLR4 and expression of NF-κB in the cytoplasm and nucleus of HK-2 before LPS exposure. RESULTS HK-2 cells exposed to 100 ng/ml of LPS for 1, 6, and 24 h did not affect cell viability which showed no toxic effect of 100 ng/ml LPS on cells (P = 0.16); however, the biosynthesis of SP-A mRNA and protein in HK-2 cells was significantly increased (P = 0.02). As to the mechanism, LPS enhanced transmembrane receptor TLR4 protein expression. Sequentially, LPS time dependently augmented phosphorylation of MEK1, ERK1/2, and p38MAPK. In addition, levels of phosphorylated IκB-α and nuclear NF-κB were augmented with LPS exposure for 2 h. LPS-induced SP-A and TLR4 mRNA as well as NF-κB expression were significantly inhibited by pretreatment with CLI-095. CONCLUSIONS The present study exhibited that LPS can increase SP-A synthesis in human renal epithelial cells through sequentially activating the TLR4-related MEK1-ERK1/2-NF-κB-dependent pathway.
Collapse
Affiliation(s)
- Jiao Liu
- Department of Critical Care Medicine, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, China
| | - Guang Li
- Department of Critical Care Medicine, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, China
| | - Wen-Jie Xie
- Department of Critical Care Medicine, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, China
| | - Lu Wang
- Department of Critical Care Medicine, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, China
| | - Rui Zhang
- Department of Critical Care Medicine, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, China
| | - Ke-Sheng Huang
- Department of Critical Care Medicine, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, China
| | - Qing-Shan Zhou
- Department of Critical Care Medicine, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, China
| | - De-Chang Chen
- Department of Critical Care Medicine, Ruijin Hospital, Shanghai Jiaotong University, Shanghai 200025, China
| |
Collapse
|
25
|
Zhai W, Liu HM, Hong ZY, Xie WJ, Wei B. A numerical simulation of acoustic field within liquids subject to three orthogonal ultrasounds. Ultrason Sonochem 2017; 34:130-135. [PMID: 27773228 DOI: 10.1016/j.ultsonch.2016.05.025] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2016] [Revised: 05/12/2016] [Accepted: 05/13/2016] [Indexed: 06/06/2023]
Abstract
When one beam of ultrasound propagates along a single direction in liquids, the cavitation effect is always confined to a limited volume close to the ultrasonic source. This greatly limits the application of power ultrasound in liquid processing and materials fabrication. In this study, a methodology for applying three orthogonal ultrasounds within liquids has been proposed. By solving the Helmholtz equation, the sound field distribution characteristics are investigated in 1D (one dimensional), 2D (two dimensional) and 3D (three dimensional) ultrasounds at their resonant frequencies, which show that the coherent interaction of three beams of ultrasounds is able to strikingly promote the sound pressure level and reinforce the mean acoustic energy density as compared with that in 1D case. Hence, the potential cavitation volume is enlarged remarkably. This opens new possibilities for the design and optimization of ultrasonic technology in fabricating materials.
Collapse
Affiliation(s)
- W Zhai
- Department of Applied Physics, Northwestern Polytechnical University, Xi'an 710072, PR China
| | - H M Liu
- Department of Applied Physics, Northwestern Polytechnical University, Xi'an 710072, PR China
| | - Z Y Hong
- Department of Applied Physics, Northwestern Polytechnical University, Xi'an 710072, PR China
| | - W J Xie
- Department of Applied Physics, Northwestern Polytechnical University, Xi'an 710072, PR China
| | - B Wei
- Department of Applied Physics, Northwestern Polytechnical University, Xi'an 710072, PR China.
| |
Collapse
|
26
|
Xu XF, Yang W, Zhang XJ, Xie WJ. [Angioimmunoblastic T-cell lymphoma-induced linitis plastica and literatures review]. Zhonghua Xue Ye Xue Za Zhi 2016; 37:257. [PMID: 27033770 PMCID: PMC7342945 DOI: 10.3760/cma.j.issn.0253-2727.2016.03.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- X F Xu
- Division of Hematology, Hangzhou Red Cross Hospital, Hangzhou 310003, China
| | | | | | | |
Collapse
|
27
|
Xie WJ, Li MX, Jiang ZQ, Tan QZ, Podobnik B, Zhou WX, Stanley HE. Skill complementarity enhances heterophily in collaboration networks. Sci Rep 2016; 6:18727. [PMID: 26743687 PMCID: PMC4705466 DOI: 10.1038/srep18727] [Citation(s) in RCA: 69] [Impact Index Per Article: 8.6] [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: 10/07/2015] [Accepted: 11/25/2015] [Indexed: 11/29/2022] Open
Abstract
Much empirical evidence shows that individuals usually exhibit significant homophily in social networks. We demonstrate, however, skill complementarity enhances heterophily in the formation of collaboration networks, where people prefer to forge social ties with people who have professions different from their own. We construct a model to quantify the heterophily by assuming that individuals choose collaborators to maximize utility. Using a huge database of online societies, we find evidence of heterophily in collaboration networks. The results of model calibration confirm the presence of heterophily. Both empirical analysis and model calibration show that the heterophilous feature is persistent along the evolution of online societies. Furthermore, the degree of skill complementarity is positively correlated with their production output. Our work sheds new light on the scientific research utility of virtual worlds for studying human behaviors in complex socioeconomic systems.
Collapse
Affiliation(s)
- Wen-Jie Xie
- School of Business, East China University of Science and Technology, Shanghai 200237, China.,Postdoctoral Research Station, East China University of Science and Technology, Shanghai 200237, China.,Departmenent of Mathematics, East China University of Science and Technology, Shanghai 200237, China
| | - Ming-Xia Li
- Postdoctoral Research Station, East China University of Science and Technology, Shanghai 200237, China.,Departmenent of Mathematics, East China University of Science and Technology, Shanghai 200237, China
| | - Zhi-Qiang Jiang
- School of Business, East China University of Science and Technology, Shanghai 200237, China.,Research Center for Econophysics, East China University of Science and Technology, Shanghai 200237, China
| | - Qun-Zhao Tan
- Shanda Games Ltd., 690 Bibo Road, Shanghai 201203, China
| | - Boris Podobnik
- Center for Polymer Studies and Department of Physics, Boston University, Boston, MA 02215, USA.,Zagreb School of Economics and Management, 10000 Zagreb, Croatia.,Luxembourg School of Business, Luxembourg.,Faculty of Civil Engineering, University of Rijeka, 51000 Rijeka, Croatia.,Faculty of Economics, University of Ljubljana, 1000 Ljubljana, Slovenia
| | - Wei-Xing Zhou
- School of Business, East China University of Science and Technology, Shanghai 200237, China.,Departmenent of Mathematics, East China University of Science and Technology, Shanghai 200237, China.,Research Center for Econophysics, East China University of Science and Technology, Shanghai 200237, China
| | - H Eugene Stanley
- Center for Polymer Studies and Department of Physics, Boston University, Boston, MA 02215, USA
| |
Collapse
|
28
|
Chen S, Zhang XJ, Xie WJ, Qiu HY, Liu H, Le WD. A New VMAT-2 Inhibitor NBI-641449 in the Treatment of Huntington Disease. CNS Neurosci Ther 2015; 21:662-71. [PMID: 26122704 DOI: 10.1111/cns.12425] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [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: 10/06/2014] [Revised: 05/22/2015] [Accepted: 05/24/2015] [Indexed: 12/20/2022] Open
Abstract
AIMS To evaluate the effectiveness of a new VMAT-2 inhibitor NBI-641449 in controlling hyperkinetic movements of Huntington disease (HD) and to investigate its possible therapeutic effects. METHODS We applied three different doses of NBI-641449 (1, 10, 100 mg/kg/day) for 2 weeks in 4-month-old YAC128 mice and wild-type (WT) mice. Rotarod performance and locomotive activities were tested during the administration of the drug. The concentration of dopamine (DA) and its metabolites was quantified in the striatal tissues by high-performance liquid chromatography (HPLC). Neuron survival in striatum and huntingtin protein aggregates were assessed with immunostaining. Expression levels of endoplasmic reticulum (ER) stress proteins were detected by immunoblotting. RESULTS Rotarod performance was significantly improved after treatment with low or middle dose of NBI-641449 in YAC128 mice. Open field test showed that NBI-641449 treatment could attenuate the increased horizontal activity (HACTV), total vertical movement, moving time, and moving distance in YAC128 mice. High dose of NBI-641449 might cause sedative effects in WT and YAC128 mice. HPLC showed that NBI-641449 caused a dose-dependent decrease of DA, 3,4-dihydroxyphenylacetic acid, and homovanillic acid levels in the striatum. NeuN and DARPP-32 immunostaining revealed that NBI-641449 had no significant effect on the neuron survival in the striatum. However, NBI-641449 treatment reduced the huntingtin protein aggregates in the cortex of YAC128 mice. In addition, the levels of ER stress proteins were increased in YAC128 mice, which can be suppressed by NBI-641449. CONCLUSIONS These findings suggest that this new VMAT-2 inhibitor NBI-641449 may have therapeutic potential for the treatment of HD.
Collapse
Affiliation(s)
- Sheng Chen
- Institute of Neurology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China.,Department of Neurology, Baylor College of medicine, Houston, TX, USA
| | - Xiao-Jie Zhang
- Institute of Neurology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Wen-Jie Xie
- Diana Helis Henry Medical Research Foundation, New Orleans, LA, USA
| | - Hong-Yan Qiu
- Institute of Neurology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Hui Liu
- Institute of Neurology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Wei-Dong Le
- Institute of Neurology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China.,Center for Translational Research of Neurology Diseases, The First Affiliated Hospital, Dalian Medical University, Dalian, China
| |
Collapse
|
29
|
Wan YL, Xie WJ, Gu GF, Jiang ZQ, Chen W, Xiong X, Zhang W, Zhou WX. Statistical properties and pre-hit dynamics of price limit hits in the Chinese stock markets. PLoS One 2015; 10:e0120312. [PMID: 25874716 PMCID: PMC4395215 DOI: 10.1371/journal.pone.0120312] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2014] [Accepted: 01/20/2015] [Indexed: 11/19/2022] Open
Abstract
Price limit trading rules are adopted in some stock markets (especially emerging markets) trying to cool off traders' short-term trading mania on individual stocks and increase market efficiency. Under such a microstructure, stocks may hit their up-limits and down-limits from time to time. However, the behaviors of price limit hits are not well studied partially due to the fact that main stock markets such as the US markets and most European markets do not set price limits. Here, we perform detailed analyses of the high-frequency data of all A-share common stocks traded on the Shanghai Stock Exchange and the Shenzhen Stock Exchange from 2000 to 2011 to investigate the statistical properties of price limit hits and the dynamical evolution of several important financial variables before stock price hits its limits. We compare the properties of up-limit hits and down-limit hits. We also divide the whole period into three bullish periods and three bearish periods to unveil possible differences during bullish and bearish market states. To uncover the impacts of stock capitalization on price limit hits, we partition all stocks into six portfolios according to their capitalizations on different trading days. We find that the price limit trading rule has a cooling-off effect (object to the magnet effect), indicating that the rule takes effect in the Chinese stock markets. We find that price continuation is much more likely to occur than price reversal on the next trading day after a limit-hitting day, especially for down-limit hits, which has potential practical values for market practitioners.
Collapse
Affiliation(s)
- Yu-Lei Wan
- Department of Mathematics, School of Science, East China University of Science and Technology, Shanghai 200237, China
- Research Center for Econophysics, East China University of Science and Technology, Shanghai 200237, China
| | - Wen-Jie Xie
- Research Center for Econophysics, East China University of Science and Technology, Shanghai 200237, China
- Department of Finance, School of Business, East China University of Science and Technology, Shanghai 200237, China
- Postdoctoral Research Station, School of Social and Public Administration, East China University of Science and Technology, Shanghai 200237, China
| | - Gao-Feng Gu
- Research Center for Econophysics, East China University of Science and Technology, Shanghai 200237, China
- Department of Finance, School of Business, East China University of Science and Technology, Shanghai 200237, China
| | - Zhi-Qiang Jiang
- Research Center for Econophysics, East China University of Science and Technology, Shanghai 200237, China
- Department of Finance, School of Business, East China University of Science and Technology, Shanghai 200237, China
| | - Wei Chen
- Shenzhen Stock Exchange, Shenzhen 518010, China
| | - Xiong Xiong
- College of Management and Economics, Tianjin University, Tianjin 300072, China
- China Center for Social Computing and Analytics, Tianjin University, Tianjin 300072, China
- * E-mail: (XX); (WXZ)
| | - Wei Zhang
- College of Management and Economics, Tianjin University, Tianjin 300072, China
- China Center for Social Computing and Analytics, Tianjin University, Tianjin 300072, China
| | - Wei-Xing Zhou
- Department of Mathematics, School of Science, East China University of Science and Technology, Shanghai 200237, China
- Research Center for Econophysics, East China University of Science and Technology, Shanghai 200237, China
- Department of Finance, School of Business, East China University of Science and Technology, Shanghai 200237, China
- * E-mail: (XX); (WXZ)
| |
Collapse
|
30
|
Xie WJ, Zhou XM. Non-isothermal crystallization kinetics and characterization of biodegradable poly(butylene succinate-co-neopentyl glycol succinate) copolyesters. Mater Sci Eng C Mater Biol Appl 2014; 46:366-73. [PMID: 25491999 DOI: 10.1016/j.msec.2014.10.063] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2014] [Revised: 08/08/2014] [Accepted: 10/21/2014] [Indexed: 10/24/2022]
Abstract
Both biodegradable aliphatic neat poly(butylene succinate) (PBS) and poly(butylene succinate-co-neopentyl glycol succinate) (P(BS-co-NPGS)) copolyesters with different 1,4-butanediol/neopentyl glycol ratios were synthesized through a two-step process of transesterification and polycondensation using stannous chloride and 4-Methylbenzenesulfonic acid as the co-catalysts. The structure, non-isothermal crystallization behavior, crystalline morphology and crystal structure of neat PBS and P(BS-co-NPGS) copolyesters were characterized by (1)H NMR, differential scanning calorimetry (DSC), polarized optical microscope (POM) and wide angle X-ray diffraction (WAXD), respectively. The Avrami equation modified by Jeziorny and Mo's method was employed to describe the non-isothermal crystallization kinetics of the neat PBS and its copolyesters. The modified Avrami equation could adequately describe the primary stage of non-isothermal crystallization kinetics of the neat PBS and its copolyesters. Mo's method provided a fairly satisfactory description of the non-isothermal crystallization of neat PBS and its copolyesters. Interestingly, the values of 1/t1/2, Zc and F(T) obtained by the modified Avrami equation and Mo's method analysis indicated that the crystallization rate increased first and then decreased with an increase of NPGS content compared that of neat PBS, whereas the crystallization mechanism almost kept unchanged. The results of tensile testing showed that the ductility of PBS was largely improved by incorporating NPGS units. The elongation at break increased remarkably with increasing NPGS content. In particular, the sample with 20% NPGS content showed around 548% elongation at break.
Collapse
Affiliation(s)
- Wen-Jie Xie
- Tianjin University of Science and Technology, Tianjin, 300457, China
| | - Xiao-Ming Zhou
- Tianjin University of Science and Technology, Tianjin, 300457, China.
| |
Collapse
|
31
|
|
32
|
Xie WJ, Sun T, Yang XR, Ma M. [Expressions of BNP and NPR-A in rat models of chronic nonbacterial prostatitis and their significance]. Zhonghua Nan Ke Xue 2012; 18:204-207. [PMID: 22474982] [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: 05/31/2023]
Abstract
OBJECTIVE To investigate the expressions of brain natriuretic peptide (BNP) and natriuretic peptide receptor (NPR-A) in the cord dorsal horn ganglion (DRG) of rat models of chronic nonbacterial prostatitis (CNP) and the relation of BNP and NPR-A with CNP-induced chronic pain. METHODS We established CNP models in 30 healthy clean SD rats using Freund's complete adjuvant, and included another 10 in a sham-operation group. The prostate tissues were subjected to HE staining, and the expressions of BNP and NPR-A in the L5-S2 DRGs were detected by real-time PCR. RESULTS Higher degree of inflammation was related to longer modeling time. At 3, 7 and 10 days, the expressions of BNP in the CNP models were 2.16 +/- 0.35, 1.61 +/- 0.21 and 1.32 +/- 0.36, and those of NPR-A were 2.75 +/- 0.06, 2.15 +/- 0.15 and 1.04 +/- 0.13, respectively, significantly higher at 3 and 7 days as compared with the sham-operation group (P<0.05), but with no statistically significant difference at 10 days. CONCLUSION BNP and NPR-A are expressed in the L5-S2 DRGs of SD rats and their expressions can be upregulated by CNP. BNP and NPR-A may be involved in the mechanisms of CNP-induced pain.
Collapse
Affiliation(s)
- Wen-Jie Xie
- Department of Urology, The First Hospital Affiliated to Nanchnag University, Nanchang, Jiangxi 330006, China.
| | | | | | | |
Collapse
|
33
|
Abstract
Two kinds of flexible reflectors are proposed and examined in this paper to improve the stability of single-axis acoustic levitator, especially in the case of levitating high-density and high-temperature samples. One kind is those with a deformable reflecting surface, and the other kind is those with an elastic support, both of which are self-adaptive to the change of acoustic radiation pressure. High-density materials such as iridium (density 22.6 gcm(-3)) are stably levitated at room temperature with a soft reflector made of colloid as well as a rigid reflector supported by a spring. In addition, the containerless melting and solidification of binary In-Bi eutectic alloy (melting point 345.8 K) and ternary Ag-Cu-Ge eutectic alloy (melting point 812 K) are successfully achieved by applying the elastically supported reflector with the assistance of a laser beam.
Collapse
Affiliation(s)
- Z Y Hong
- Department of Applied Physics, Northwestern Polytechnical University, Xi'an 710072, China
| | | | | |
Collapse
|
34
|
Guo Y, Le WD, Jankovic J, Yang HR, Xu HB, Xie WJ, Song Z, Deng H. Systematic genetic analysis of the PITX3
gene in patients with Parkinson disease. Mov Disord 2011; 26:1729-32. [DOI: 10.1002/mds.23693] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2010] [Revised: 01/17/2011] [Accepted: 02/01/2011] [Indexed: 11/06/2022] Open
|
35
|
Shen CL, Xie WJ, Wei B. Parametrically excited sectorial oscillation of liquid drops floating in ultrasound. Phys Rev E Stat Nonlin Soft Matter Phys 2010; 81:046305. [PMID: 20481825 DOI: 10.1103/physreve.81.046305] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2009] [Revised: 02/04/2010] [Indexed: 05/29/2023]
Abstract
We report experiments in which the nonaxisymmetric sectorial oscillations of water drops have been excited using acoustic levitation and an active modulation method. The observed stable sectorial oscillations are up to the seventh mode. These oscillations are excited by parametric resonance. The oblate initial shape of the water drops is essential to this kind of excitations. The oscillation frequency increases with mode number but decreases with equatorial radius for each mode number. The data can be well described by a modified Rayleigh equation, without the use of additional parameters.
Collapse
Affiliation(s)
- C L Shen
- Department of Applied Physics, Northwestern Polytechnical University, Xi'an 710072, People's Republic of China
| | | | | |
Collapse
|
36
|
Abstract
BACKGROUND Several genetic variants in transcription factor genes have been reported to be associated with Parkinson's disease (PD). The muscle segment homeobox drosophila homolog of 1 gene (MSX1) is a major upstream regulator of the dopaminergic neuronal subtype specification. AIMS OF THE STUDY To determine whether genetic variation in the coding region of the MSX1 gene plays a role in the etiology of PD. METHODS We searched for genetic variations in the coding region of the MSX1 gene in 202 patients with PD and 200 normal controls by PCR-single-strand conformation polymorphism (PCR-SSCP) and sequencing. RESULTS No mutation in the MSX1 gene was identified in our cohort. CONCLUSIONS Mutations in the coding region of the MSX1 gene play little or no role in the development of PD.
Collapse
Affiliation(s)
- H Deng
- Center for Experimental Medicine, the Third Xiangya Hospital, Central South University, China
| | | | | | | | | | | | | | | |
Collapse
|
37
|
Song C, Huang YD, Wei Z, Hou Y, Xie WJ, Huang RP, Song YM, Lv HG, Song CF. Polyglycolic Acid-islet grafts improve blood glucose and insulin concentrations in rats with induced diabetes. Transplant Proc 2009; 41:1789-93. [PMID: 19545729 DOI: 10.1016/j.transproceed.2009.01.079] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2008] [Revised: 10/25/2008] [Accepted: 01/08/2009] [Indexed: 12/01/2022]
Abstract
Pancreatic islet transplantation is a promising therapeutic treatment for type 1 diabetes mellitus. In the present study, we cocultured islets with or without a polyglycolic acid (PGA) fibrous scaffold for 5 days and transplanted the PGA-islet grafts into the leg muscles of Wistar rats with streptozotocin-induced diabetes; controls were injected with saline. The results showed that the blood glucose concentrations of the group given islets embedded with the PGA scaffold were lower than those without the scaffold or controls. On the other hand, the insulin content of the PGA-islet group was higher at all 5 time points compared with the insulin contents of the other 2 groups. After transplantation, many islets in the PGA-islet grafts showed normal morphology (as seen under the scanning electron microscope) and were surrounded by red blood cells. A fibrous extracellular matrix was visible around the PGA-islet grafts. These results demonstrated that PGA-islet grafts improved blood glucose and insulin concentrations in rats with induced diabetes.
Collapse
Affiliation(s)
- C Song
- Department of Applied Chemistry, Harbin Institute of Technology, Harbin, China
| | | | | | | | | | | | | | | | | |
Collapse
|
38
|
Chun S, Huang Y, Xie WJ, Hou Y, Huang RP, Song YM, Liu XM, Zheng W, Shi Y, Song CF. Adhesive growth of pancreatic islet cells on a polyglycolic acid fibrous scaffold. Transplant Proc 2008; 40:1658-63. [PMID: 18589168 DOI: 10.1016/j.transproceed.2008.02.088] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2007] [Accepted: 02/26/2008] [Indexed: 11/15/2022]
Abstract
BACKGROUND The use of cultured pancreatic islet cells for diabetes treatment offers several advantages. In theory, cultured cells show greater purity and lower immunogenicity. However, cultured islet cells display a low survival rate in vitro. In the present study we grew islet cells on a polyglycolic acid (PGA) fibrous scaffold to promote cell adhesion, growth, and viability during prolonged culture. METHODS Islets isolated from Wistar rat pancreata were digested with collagenase and purified by the Ficoll method. Cells were grown in culture with or without PGA scaffolds. Islet cell purity was determined using a dithizone stain; viability and survival rates were determined using an AO-PI stain. The insulin-secretion index was detected using radioimmunodetection and the growth on an adhesive scaffold analyzed using an inverted microscope and scanning electron microscope (SEM). RESULTS In contrast to the scaffold-free control group, cells cultured on PGA scaffolds exhibited improved morphology, less cell death, and prolonged survival times. Cell viability and survival rates were significantly increased in scaffolded cells when compared to control cells (P < .05). Increased insulin secretion was observed in the culture solution of scaffolded cells following stimulation with low glucose (5.6 mmol/L) versus high glucose (16.7 mmol/L). The secretion indices of the two groups were significantly different (P < .05). Islet cell growth, as observed under SEM, was tightly circumvolute, adhesive, and three-dimensional. CONCLUSIONS The present results demonstrated that islet cells can successfully grow and survive in culture on a PGA scaffold. These cells exhibited enhanced viability, survival, and insulin secretion.
Collapse
Affiliation(s)
- S Chun
- Department of Applied Chemistry, Harbin Institute of Technology, Harbin, China
| | | | | | | | | | | | | | | | | | | |
Collapse
|
39
|
Abstract
BACKGROUND Mutations in the parkin gene cause autosomal recessive early-onset Parkinson disease (EOPD). The A265G variant in the HS1 binding protein 3 gene (HS1BP3) is common in essential tremor (ET). OBJECTIVE To investigate the presence of mutations in the parkin gene and the A265G variant in the HS1BP3 gene in a Mexican family with EOPD, ET, and Bell palsy. DESIGN Direct sequencing, semiquantitative polymerase chain reaction, and reverse transcription-polymerase chain reaction were performed in the 14 members of this family. SETTING Mexican family. Patients Two patients with EOPD were analyzed. RESULTS Compound heterozygous mutations (EX 3_6 del and EX 5 del) in the parkin gene were identified in 2 patients with EOPD, characterized by beneficial response to levodopa, relatively slow progression, and motor complications. Although heterozygous EX 3_6 del and homozygous EX 5 del mutations in the parkin gene have been previously described, to our knowledge, this is the first report of these mutations in compound heterozygotes. Seven heterozygous A265G variants in the HS1BP3 gene were found in this pedigree, but they did not cosegregate with ET, Parkinson disease, or Bell palsy, supporting the conclusion that this variant is not associated with ET. CONCLUSIONS Compound heterozygous parkin mutations (EX 3_6 del and EX 5 del) caused EOPD in this family, but the A265G variant in the HS1BP3 gene, previously considered to be responsible for ET, was probably not pathogenically related to the ET in this family.
Collapse
Affiliation(s)
- Hao Deng
- Department of Neurology, Baylor College of Medicine, Houston, TX 77030, USA
| | | | | | | | | | | |
Collapse
|
40
|
Abstract
OBJECTIVE To determine whether variants in the Slit and Trk-like 1 gene (SLITRK1) are present in American Caucasian population of patients with Tourette syndrome (TS). METHODS We sequenced the 3'-untranslated region for var321 and the whole coding region in the SLITRK1 gene in 82 Caucasian patients with TS from North America. RESULTS None of the 82 samples from patients with TS showed the non-coding sequence variant (var321). Only one patient with familial TS was heterozygous for a novel 708C > T (Ile236Ile) nucleotide variant. CONCLUSIONS The var321 and mutation(s) in the coding region of the SLITRK1 gene probably are a rare cause of TS in a Caucasian population; therefore, genetic heterogeneity of TS should be considered. Tests designed to detect variant(s) in the SLITRK1 gene probably will not have a diagnostic utility in clinical practice.
Collapse
Affiliation(s)
- H Deng
- Department of Neurology, Parkinson's Disease Center and Movement Disorders Clinic, Baylor College of Medicine, Houston, TX 77030, USA
| | | | | | | |
Collapse
|
41
|
Deng H, Le W, Guo Y, Hunter CB, Xie W, Huang M, Jankovic J. Genetic analysis of LRRK2 mutations in patients with Parkinson disease. J Neurol Sci 2006; 251:102-6. [PMID: 17097110 DOI: 10.1016/j.jns.2006.09.017] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2006] [Revised: 08/07/2006] [Accepted: 09/11/2006] [Indexed: 11/19/2022]
Abstract
In addition to the G2019S mutation in the leucine-rich repeat kinase 2 gene (LRRK2), which is particularly frequent in patients of Ashkenazi Jewish and Northern African origin, three amino acid substitutions (R1441C, R1441G, and R1441H), all at the same residue (R1441), have been identified as important genetic causes of Parkinson disease (PD). To evaluate the frequency of R1441C/G/H and G2019S mutations in the LRRK2 gene in North American patients with PD and to explore genotype-phenotype correlations, we screened 496 PD patients from North America. One Hispanic female was heterozygous for the LRRK2 R1441G mutation, and six other cases including 2 non-Jewish/non-Hispanic whites, 3 Ashkenazi Jewish, and 1 Hispanic, were found to be heterozygous for the LRRK2 G2019S mutation. G2019S mutation in the LRRK2 gene is a common mutation associated with PD in a North American population, especially in Jewish PD patients (10.7%), while the R1441C/G/H mutation occurs at a relatively low frequency in North Americans except possibly in Hispanics for R1441G. All six G2019S carriers shared a common haplotype with that observed in Europeans and North Africans. The clinical features of all seven cases with LRRK2 mutation were quite broad and included early and late disease onset. These finding may provide new insights into the cause and diagnosis of PD and have implications for genetic counseling.
Collapse
Affiliation(s)
- Hao Deng
- Department of Neurology, Baylor College of Medicine, Houston, TX 77030, USA
| | | | | | | | | | | | | |
Collapse
|
42
|
Deng H, Le W, Davidson AL, Xie W, Jankovic J. The LRRK2 I2012T, G2019S and I2020T mutations are not common in patients with essential tremor. Neurosci Lett 2006; 407:97-100. [PMID: 16939701 DOI: 10.1016/j.neulet.2006.08.012] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2006] [Revised: 08/03/2006] [Accepted: 08/07/2006] [Indexed: 10/24/2022]
Abstract
Several mutations in the leucine-rich repeat kinase 2 gene (LRRK2) have been identified both in familial and sporadic cases of Parkinson's disease (PD). G2019S, located at a kinase (MAPKKK) domain, is the most common mutation in the LRRK2 gene in PD, Two adjacent mutations (I2012T and I2020T) were mapped to the same domain suggesting shared pathogenic mechanism of these mutations. Since phenotypes of PD overlap with essential tremor (ET), we investigated LRRK2 G2019S, I2012T, and I2020T mutations in a cohort of 272 patients with ET. No mutations were found in our ET cohort and, therefore, we conclude that LRKK2 I2012T, G2019S and I2020T variants are rare causes of Caucasian ET.
Collapse
Affiliation(s)
- Hao Deng
- Department of Neurology, Baylor College of Medicine, 6550 Fannin, Suite 1801, Houston, TX 77030, USA
| | | | | | | | | |
Collapse
|
43
|
Deng H, Xie WJ, Le WD, Huang MS, Jankovic J. Genetic analysis of the GABRA1 gene in patients with essential tremor. Neurosci Lett 2006; 401:16-9. [PMID: 16530959 DOI: 10.1016/j.neulet.2006.02.066] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2005] [Revised: 02/20/2006] [Accepted: 02/22/2006] [Indexed: 11/22/2022]
Abstract
The gamma-aminobutyric acid A (GABA-A) receptor mediates inhibitory neurotransmission in the brain and as such may be involved in certain neurological movement disorders, such as tremor. GABA-A receptor alpha 1 (Gabra)(-/-) mice have been reported to exhibit postural and kinetic, alcohol-responsive, tremor that is characteristic of essential tremor (ET), the most common form of tremor. To determine whether ET is associated with the GABRA1 gene mutation, we screened 76 patients with familial ET and found a novel nucleotide variant: IVS8+24 G>T (nt 6119289) in a male patient, and a known 156T>C polymorphism (nt 6090903) in exon 4 in 41% patients, which results in a silent mutation (G52G). No significant association between 156T>C variant and disease risk was found (adjusted OR=0.95, 95% CI=0.57-1.61; p=0.858) by further analysis of 121 familial ET patients and 114 normal controls, except a novel 96A>G (Q32Q; nt 6090743) variant, found in a normal control. Since the 156T>C variant appears to be not pathogenically relevant, our results suggest that missense, nonsense or splice site mutation in the coding region of the GABRA1 gene is not a major genetic cause of ET in Caucasian subjects.
Collapse
Affiliation(s)
- Hao Deng
- Department of Neurology, Baylor College of Medicine, 6501 Fannin Street, Houston, TX 77030, USA
| | | | | | | | | |
Collapse
|
44
|
Deng H, Le WD, Hunter CB, Ondo WG, Guo Y, Xie WJ, Jankovic J. Heterogeneous phenotype in a family with compound heterozygous parkin gene mutations. ACTA ACUST UNITED AC 2006; 63:273-7. [PMID: 16476817 DOI: 10.1001/archneur.63.2.273] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
BACKGROUND Mutations in the parkin gene (PRKN) cause autosomal recessive early-onset Parkinson disease (EOPD). OBJECTIVE To investigate the presence of mutations in the PRKN gene in a white family with EOPD and the genotype-phenotype correlations. DESIGN Twenty members belonging to 3 generations of the EOPD family with 4 affected subjects underwent genetic analysis. Direct genomic DNA sequencing, semiquantitative polymerase chain reaction, real-time quantitative polymerase chain reaction, and reverse-transcriptase polymerase chain reaction analyses were performed to identify the PRKN mutation. RESULTS Compound heterozygous mutations (T240M and EX 5_6 del) in the PRKN gene were identified in 4 patients with early onset (at ages 30-38 years). Although heterozygous T240M and homozygous EX 5_6 del mutations in the PRKN gene have been previously described, this is, to our knowledge, the first report of these mutations in compound heterozygotes. The phenotype of patients was that of classic autosomal recessive EOPD characterized by beneficial response to levodopa, relatively slow progression, and motor complications. All heterozygous mutation carriers (T240M or EX 5_6 del) and a 56-year-old woman who was a compound heterozygous mutation carrier (T240M and EX 5_6 del) were free of any neurological symptoms. CONCLUSIONS Compound heterozygous mutations (T240M and EX 5_6 del) in the PRKN gene were found to cause autosomal recessive EOPD in 4 members of a large white family. One additional member with the same mutation, who is more than 10 years older than the mean age at onset of the 4 affected individuals, had no clinical manifestation of the disease. This incomplete penetrance has implications for genetic counseling, and it suggests that complex gene-environment interactions may play a role in the pathogenesis of PRKN EOPD.
Collapse
Affiliation(s)
- Hao Deng
- Department of Neurology, Baylor College of Medicine, Houston, Tex 77030, USA
| | | | | | | | | | | | | |
Collapse
|
45
|
Affiliation(s)
- H Deng
- Department of Neurology, Baylor College of Medicine, Houston, TX 77030, USA
| | | | | | | | | | | |
Collapse
|
46
|
Qu S, Ondo WG, Zhang X, Xie WJ, Pan TH, Le WD. Projections of diencephalic dopamine neurons into the spinal cord in mice. Exp Brain Res 2005; 168:152-6. [PMID: 16044299 DOI: 10.1007/s00221-005-0075-1] [Citation(s) in RCA: 80] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2004] [Accepted: 05/24/2005] [Indexed: 10/25/2022]
Abstract
The aim of this study is to investigate the pathway of diencephalic dopaminergic (DA) neuronal innervating into the spinal cord in mice, the pathway is postulated relevant to clinical restless legs syndrome (RLS). Tyrosine hydroxylase (TH) immunohistochemistry was used to identify the DA neuron. The fluorescent tracer Fluoro-Gold (FG) was stereotaxically injected into the T10-L5 spinal cord of CBL57 mice (n=20) seven days before the animals were sacrificed. The diencephalic sections were stained with TH antibody and the FG tracer present in the diencephalic DA neurons were examined under fluoresce microscope. The average number of total DA neurons per side in A11, A12, A13 and A14 was 66+/-8, 221+/-12, 350+/-17 and 254+/-21 respectively. After being injected into the spinal cord, FG reached the DA neurons within the A10 and A11 groups, but didn't target to any other DA neuron groups including the A8 and A9 groups in substantia nigra (SN). The diencephalic A11 DA neurons possessed long axons extending over several segments and possibly traversing the entire length of the spinal cord. It is the first time to report A10 and A11 DA neuron projections into the spinal cord in mice.
Collapse
Affiliation(s)
- S Qu
- Department of Neurology, Baylor College of Medicine, 6501 Fannin Street, NB205, Houston, TX 77030, USA
| | | | | | | | | | | |
Collapse
|
47
|
Deng H, Le WD, Xie WJ, Pan TH, Zhang X, Jankovic J. Genetic analysis of parkin co-regulated gene (PACRG) in patients with early-onset parkinsonism. Neurosci Lett 2005; 382:297-9. [PMID: 15925106 DOI: 10.1016/j.neulet.2005.03.034] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2005] [Revised: 03/14/2005] [Accepted: 03/15/2005] [Indexed: 10/25/2022]
Abstract
Parkin co-regulated gene (PACRG) is a recently identified gene which is transcriptionally co-regulated with parkin gene (PRKN) by a shared bidirectional promoter. To determine whether early-onset parkinsonism (EOP) is associated with PACRG mutation, we screened 112 patients with EOP and found three nucleotide variants: (1) T>C transition in intron 2 (nt 87004; NT_007422), (2) C>T transition (L214L) in exon 6 (nt 585706; NT_007422), and (3) T>A substitution in intron 5 (nt 585630; NT_007422), located 18 bp upstream from exon 6. Since none of these variations appear to be pathogenically relevant, our results suggest that mutation of PACRG plays little or no role in the development of EOP.
Collapse
Affiliation(s)
- Hao Deng
- Department of Neurology, Baylor College of Medicine, 6501 Fannin Street, Houston, TX 77030, USA
| | | | | | | | | | | |
Collapse
|
48
|
Xie WJ, Wei B. Dynamics of acoustically levitated disk samples. Phys Rev E Stat Nonlin Soft Matter Phys 2004; 70:046611. [PMID: 15600551 DOI: 10.1103/physreve.70.046611] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2004] [Revised: 06/02/2004] [Indexed: 05/24/2023]
Abstract
The acoustic levitation force on disk samples and the dynamics of large water drops in a planar standing wave are studied by solving the acoustic scattering problem through incorporating the boundary element method. The dependence of levitation force amplitude on the equivalent radius R of disks deviates seriously from the R3 law predicted by King's theory, and a larger force can be obtained for thin disks. When the disk aspect ratio gamma is larger than a critical value gamma(*) ( approximately 1.9 ) and the disk radius a is smaller than the critical value a(*) (gamma) , the levitation force per unit volume of the sample will increase with the enlargement of the disk. The acoustic levitation force on thin-disk samples ( gamma</= gamma(*) ) can be formulated by the shape factor f(gamma,a) when a</= a(*) (gamma) . It is found experimentally that a necessary condition of the acoustic field for stable levitation of a large water drop is to adjust the reflector-emitter interval H slightly above the resonant interval H(n) . The simulation shows that the drop is flattened and the central parts of its top and bottom surface become concave with the increase of sound pressure level, which agrees with the experimental observation. The main frequencies of the shape oscillation under different sound pressures are slightly larger than the Rayleigh frequency because of the large shape deformation. The simulated translational frequencies of the vertical vibration under normal gravity condition agree with the theoretical analysis.
Collapse
Affiliation(s)
- W J Xie
- Department of Applied Physics, Northwestern Polytechnical University, Xi'an 710072, People's Republic of China.
| | | |
Collapse
|
49
|
Xie WJ, Cao CD, Lü YJ, Wei B. Eutectic growth under acoustic levitation conditions. Phys Rev E Stat Nonlin Soft Matter Phys 2002; 66:061601. [PMID: 12513291 DOI: 10.1103/physreve.66.061601] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2002] [Indexed: 05/24/2023]
Abstract
Samples of Pb-Sn eutectic alloy with a high density of 8.5 x 10(3) kg/m(3) are levitated with a single-axis acoustic levitator, and containerlessly melted and then solidified in argon atmosphere. High undercoolings up to 38 K are obtained, which results in a microstructural transition of "lamellas-broken lamellas-dendrites." This transition is further investigated in the light of the coupled zone for eutectic growth and the effects of ultrasound. The breaking of regular eutectic lamellas and suppression of gravity-induced macrosegregation of (Pb) and (Sn) dendrites are explained by the complicated internal flow inside the levitated drop, which is jointly induced by the shape oscillation, bulk vibration and rotation of the levitated drop. The ultrasonic field is also found to drive forced surface vibration, which subsequently excites capillary ripples and catalyzes nucleation on the sample surface.
Collapse
Affiliation(s)
- W J Xie
- Department of Applied Physics, Northwestern Polytechnical University, Xi'an 710072, People's Republic of China.
| | | | | | | |
Collapse
|
50
|
Abstract
Single-axis acoustic levitation of the heaviest solid (iridium, rho=22.6 g cm(-3)) and liquid (mercury, rho=13.6 g cm(-3) on the Earth is achieved by greatly enhancing both the levitation force and stability through optimizing the geometric parameters of the levitator. The acoustically levitated Pb-Sn eutectic alloy melt (rho=8.5 g cm(-3)) is highly undercooled by up to 38 K, which results in a microstructural transition of "lamellae-broken lamellae-dendrites." The drastic enhancement of levitation capability indicates a broader application range of single-axis acoustic levitation.
Collapse
Affiliation(s)
- W J Xie
- Department of Applied Physics, Northwestern Polytechnical University, Xi'an 710072, People's Republic of China
| | | | | | | |
Collapse
|