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Dang X, Yang R, Jing Q, Niu Y, Li H, Zhang J, Liu Y. Association between high or low-quality carbohydrate with depressive symptoms and socioeconomic-dietary factors model based on XGboost algorithm: From NHANES 2007-2018. J Affect Disord 2024; 351:507-517. [PMID: 38307135 DOI: 10.1016/j.jad.2024.01.220] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Revised: 01/23/2024] [Accepted: 01/25/2024] [Indexed: 02/04/2024]
Abstract
BACKGROUND Depressive symptoms are a serious public mental health problem, and dietary intake is often considered to be associated with depressive symptoms. However, the relationship between the quality of dietary carbohydrates and depressive symptoms remains unclear. Therefore, this study aimed to investigate the relationship between high and low-quality carbohydrates and depressive symptoms and to attempt to construct an integrated model using machine learning to predict depressive symptoms. METHODS A total of 4982 samples from the National Health and Nutrition Examination Survey (NHANES) were included in this study. Carbohydrate intake was assessed by a 24-h dietary review, and depressive symptoms were assessed using the Patient Health Questionnaire-9 (PHQ9). Variance inflation factor (VIF) and Relief-F algorithms were used for variable feature selection. RESULTS The results of multivariate linear regression showed a negative association between high-quality carbohydrates and depressive symptoms (β: -0.147, 95 % CI: -0.239, -0.056, p = 0.002) and a positive association between low-quality carbohydrates and depressive symptoms (β: 0.018, 95 % CI: 0.007, 0.280, p = 0.001). Subsequently, we used the XGboost model to produce a comprehensive depressive symptom evaluation model and developed a corresponding online tool (http://8.130.128.194:5000/) to evaluate depressive symptoms clinically. LIMITATIONS The cross-sectional study could not yield any conclusions regarding causality, and the model has not been validated with external data. CONCLUSIONS Carbohydrate quality is associated with depressive symptoms, and machine learning models that combine diet with socioeconomic factors can be a tool for predicting depression severity.
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Affiliation(s)
- Xiangji Dang
- Department of Pharmaceutical, Lanzhou University Second Hospital, Cui Ying Men No.80, Lanzhou 730030, Gansu Province, PR China
| | - Ruifeng Yang
- School of Second Clinical Medical, Lanzhou University, Donggang West Road No. 199, Lanzhou 730020, PR China
| | - Qi Jing
- School of Second Clinical Medical, Lanzhou University, Donggang West Road No. 199, Lanzhou 730020, PR China
| | - Yingdi Niu
- Science and Technology Museum, Gansu, Yin'an Road No.568, Lanzhou 730070, PR China
| | - Hongjie Li
- School of Second Clinical Medical, Lanzhou University, Donggang West Road No. 199, Lanzhou 730020, PR China
| | - Jingxuan Zhang
- School of Second Clinical Medical, Lanzhou University, Donggang West Road No. 199, Lanzhou 730020, PR China
| | - Yan Liu
- School of Pharmacy, Lanzhou University, Donggang West Road No. 199, Gansu 730020, P.R. China.
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Wang ZX, Mao YH, Wang Y, Fu PJ, Dang X, Xu LN. [Evaluation of anticoagulant effect and predicted dose of low molecular weight heparin in hemodialysis by anti-Ⅹa factor activity]. Zhonghua Yu Fang Yi Xue Za Zhi 2024; 58:254-260. [PMID: 38387959 DOI: 10.3760/cma.j.cn112150-20230803-00053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 02/24/2024]
Abstract
The purpose of this study was to explore the reasonable dose of low molecular weight heparin (LMWH) in hemodialysis (HD) and the strategy of preventing extracorporeal circuit coagulation (ECC). A retrospective case-control study included patients who used LMWH for anticoagulation during maintenance hemodialysis (MHD) in the Hemodialysis Center of Beijing Hospital from December 2020 to January 2021. Basic data such as weight, height, basic kidney disease, dialysis age and anti-Ⅹa factor activity before, during and after dialysis were collected. A total of 46 patients were enrolled in this study, including 5 patients in coagulation group (10.9%) and 41 patients in non-coagulation group (89.1%). The anti-Ⅹa factor activity reached its peak at 0.5 h after the start of HD. The level of anti-Ⅹa factor was incorporated into the receiver operating characteristic curve (ROC curve). The results showed that the area under the ROC curve (AUC) was 0.802 (95% confidence interval: 0.651-0.54, P=0.029), and the cutoff was 0.31 IU/ml (sensitivity 1, specificity 0.683). It is suggested that the body surface area should be used as the basis to estimate the anticoagulant dose of LMWH in HD, and the activity of HD 4 h anti-Ⅹa factor ≤0.31 IU/ml, which is of diagnostic value for ECC. In addition, the results of binary logistic regression analysis showed that dialysis age was an independent risk factor for ECC (OR value 1.319, 95%CI 1.052-1.654, P=0.017). In summary, this study reveals that dialysis age may be a risk factor for ECC and that the activity of HD 4 h anti-Ⅹa factor ≤0.31 IU/ml can be used as a potential diagnostic cut-off point for ECC in HD patients, which provides a scientific basis for monitoring strategies to prevent blood coagulation in HD filters.
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Affiliation(s)
- Z X Wang
- Department of Nephrology, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100005, China
| | - Y H Mao
- Department of Nephrology, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100005, China
| | - Y Wang
- Department of Nephrology, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100005, China
| | - P J Fu
- Department of Nephrology, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100005, China
| | - X Dang
- Department of Nephrology, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100005, China
| | - L N Xu
- Department of Nephrology, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100005, China
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Dang X, Liu Z, Sheng X, Liu Y. Apply Anticoagulants after Discharge not Benefit to the Incidence of Symptomatic Thrombus in High-Altitude Areas: A Retrospective Study. Orthop Surg 2023; 15:3118-3125. [PMID: 37822276 PMCID: PMC10694004 DOI: 10.1111/os.13888] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Revised: 08/09/2023] [Accepted: 08/15/2023] [Indexed: 10/13/2023] Open
Abstract
OBJECTIVE Many guidelines indicate that continuous use of anticoagulant drugs reduces the incidence of venous thrombus (VT), but no studies show the effect on the incidence of symptomatic venous thrombus (SVT) in total knee arthroplasty (TKA) patients after discharge. This study aimed to investigate whether it is necessary to apply anticoagulants to TKA patients after discharge. METHODS Patients who met the exclusion criteria requirement, underwent TKA by the same surgical team and received anticoagulant therapy after the operation were eligible for the study. Finally, a total of 567 TKA patients were recruited as participants. The patients were divided into two groups. The patients in group A were taken low molecular heparin for 5-10 days after surgery, which included but was not limited to low molecular weight heparin calcium injection (0.4 mL, ih, Qd), calcium dioxin injection (0.6 mL, ih, Qd), or enoxaparin sodium injection (0.4 mL, ih, Qd), and the patients needed to continue oral anticoagulant drug (10 mg, po, Qd) for 7-21 days after discharge. The patients in group B only took low molecular heparin 5-10 days after surgery and no treatment after discharge. The baseline characteristics of patients, total complications of SVT include lower limb vascular pain (LLVP), lower limb vascular pain no fester (LLVPNF), lower limbs swelling (LLS), lower limb fester (LLF), and death by thrombosis (DT), bleeding and mortality following discharged were compared between two groups. RESULTS The study showed that the incidence of SVT patients had no significant difference between the two groups (p = 0.489). Moreover, the incidence of LLVP (p = 0.265), LLS (p = 0.84), LLVPNF (p = 0.213), LLF (p = 0.907), DT (p = 0.907), death from other causes, and bleeding (p = 0.323) had no significant differences between the two groups. However, the incidence of SVT in patients with smoking (p = 0.0001 or 0.0011) or drinking (p = 0.0002 or 0.0001) was significantly increased. CONCLUSION There is not enough evidence showing that the TKA patients given anticoagulants after discharge had benefits in decreasing the risk of SVT. Furthermore, smoking and drinking would significantly increase the risk of SVT in TKA patients.
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Affiliation(s)
- Xiangji Dang
- Department of PharmaceuticalLanzhou University Second HospitalLanzhouChina
| | - Zhilong Liu
- Department of AnesthesiologyGansu Provincial HospitalLanzhouChina
| | - Xiaoyun Sheng
- Department of OrthopedicsLanzhou University Second HospitalLanzhouChina
| | - Yan Liu
- School of PharmacyLanzhou UniversityLanzhouChina
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Dang X, Wang R, Liu Y. Disulfiram-like Reaction With Ginaton: A Case Report and Literature Review. Clin Ther 2023; 45:1151-1154. [PMID: 37722955 DOI: 10.1016/j.clinthera.2023.08.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Revised: 08/14/2023] [Accepted: 08/17/2023] [Indexed: 09/20/2023]
Abstract
Alcohol consumption, even minimal, can exacerbate the disulfiram-like reaction (also referred to as acetaldehyde syndrome) that occurs with the use of medications that impede the breakdown of acetaldehyde. Such medications include Ginaton, a proprietary tablet formulation of Ginkgo biloba extract commonly used in Europe, Asia, and the United States for cardiovascular and nervous system health. This article details such a case from China. Healthcare providers should be proactive in educating patients about the potential adverse reactions related to using Ginaton and the importance of avoiding alcohol consumption while using it. Patients should also be advised to disclose their alcohol-consumption habits and seek medical advice before initiating treatment with any medication or supplement during treatment with Ginaton.
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Affiliation(s)
- Xiangji Dang
- Department of Pharmaceuticals, Lanzhou University Second Hospital, Lanzhou, P.R. China
| | - Rui Wang
- Department of Pharmaceuticals, Lanzhou University Second Hospital, Lanzhou, P.R. China
| | - Yan Liu
- School of Pharmacy, Lanzhou University, Lanzhou, P.R. China.
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Song J, Wu J, Poulet B, Liang J, Bai C, Dang X, Wang K, Fan L, Liu R. Proteomics analysis of hip articular cartilage identifies differentially expressed proteins associated with osteonecrosis of the femoral head. Osteoarthritis Cartilage 2021; 29:1081-1092. [PMID: 33892138 DOI: 10.1016/j.joca.2021.04.005] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/06/2020] [Revised: 03/16/2021] [Accepted: 04/12/2021] [Indexed: 02/06/2023]
Abstract
OBJECTIVE The cartilage degeneration that accompanies subchondral bone necrosis plays an important role in the development of osteonecrosis of femoral head (ONFH). To better understand the molecular basis of cartilage degradation in ONFH, we compared the proteomic profiles of ONFH cartilage with that of fracture control. DESIGN Hip cartilage samples were collected from 16 ONFH patients and 16 matched controls with femoral neck fracture. Proteomics analysis was conducted using tandem mass tag-based quantitation technique. Gene ontology (GO) analysis, KEGG pathway and protein-protein interaction analysis were used to investigate the functions of the altered proteins and biological pathways. Differentially expressed proteins including alpha-2-HS-glycoprotein (AHSG) and Cytokine-like protein 1 (Cytl1) were validated by Western blot (WB) and immunohistochemistry (IHC). RESULTS 303 differentially expressed proteins were identified in ONFH cartilage with 72 up-regulated and 231 down-regulated. Collagen turnover, glycosaminoglycan biosynthesis, metabolic pathways, and complement and coagulation cascades were significantly modified in ONFH cartilage. WB and IHC confirmed the increased expression of AHSG and decreased expression of Cytl1 in ONFH cartilage. CONCLUSIONS Our results reveal the implication of altered protein expression in the development of ONFH, and provide novel clues for pathogenesis studies of cartilage degradation in ONFH.
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Affiliation(s)
- J Song
- Department of Orthopaedics, The Second Affiliated Hospital, Xi'an Jiaotong University, NO.157, Xiwu Road, Xi'an, Shaanxi, 710004, PR China.
| | - J Wu
- Department of Orthopaedics, The Second Affiliated Hospital, Xi'an Jiaotong University, NO.157, Xiwu Road, Xi'an, Shaanxi, 710004, PR China; Department of Orthopaedics, Luoyang Central Hospital Affiliated to Zhengzhou University, Luoyang, Henan Province, 471009, PR China.
| | - B Poulet
- Institute of Ageing and Chronic Disease, University of Liverpool, William Henry Duncan Building, West Derby Road, Liverpool, L7 8TX, UK.
| | - J Liang
- Department of Orthopaedics, The Second Affiliated Hospital, Xi'an Jiaotong University, NO.157, Xiwu Road, Xi'an, Shaanxi, 710004, PR China.
| | - C Bai
- Department of Orthopaedics, The Second Affiliated Hospital, Xi'an Jiaotong University, NO.157, Xiwu Road, Xi'an, Shaanxi, 710004, PR China.
| | - X Dang
- Department of Orthopaedics, The Second Affiliated Hospital, Xi'an Jiaotong University, NO.157, Xiwu Road, Xi'an, Shaanxi, 710004, PR China.
| | - K Wang
- Department of Orthopaedics, The Second Affiliated Hospital, Xi'an Jiaotong University, NO.157, Xiwu Road, Xi'an, Shaanxi, 710004, PR China.
| | - L Fan
- Department of Orthopaedics, The Second Affiliated Hospital, Xi'an Jiaotong University, NO.157, Xiwu Road, Xi'an, Shaanxi, 710004, PR China.
| | - R Liu
- Department of Orthopaedics, The Second Affiliated Hospital, Xi'an Jiaotong University, NO.157, Xiwu Road, Xi'an, Shaanxi, 710004, PR China; Institute of Ageing and Chronic Disease, University of Liverpool, William Henry Duncan Building, West Derby Road, Liverpool, L7 8TX, UK.
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Dang X, Zhao P, Liu Y, Qin L, Jiao H. Gastrodia elata powder capsule enhances anti-epileptic effect of carbamazepine by decreasing P-gp expression. TROP J PHARM RES 2021. [DOI: 10.4314/tjpr.v18i9.11] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Purpose: To investigate the influence of Gastrodia elata powder capsule (GC) or gastrodin (GTD) on the anti-epileptic effect of carbamazepine (CBZ) on penicillin (PG)-induced epilepsy in rats.
Methods: A total 116 rats were used in this study. Rats in the control group (n = 8) were injected with normal saline (NS) in place PG. Epilepsy was induced in the remaining 108 rats on the first day via PG injection. The rats were then divided randomly into six groups (18 rats per group): PG group, CBZ group, CBZ + GC group, CBZ + GTD group, GC group, and GTD group, which were given (p.o.) NS, CBZ (100 mg/kg), CBZ (100 mg/kg.) + GC (350 mg/kg), CBZ (100 mg/kg) + GTD (100 mg/kg), GC (350 mg/kg), and GTD (100 mg/kg), respectively, once a day for 15 days. The behavioral characteristics of the rats were observed and used to assess the anti-epileptic effect of the test drugs. Real-time quantitative reverse transcription-PCR and Western blot assays were employed for the determination of the effect of CBZ, GC and GTD on the expression levels of P-gp.
Results: CBZ significantly reduced the symptoms of epilepsy, while GC and GTD enhanced the antiepileptic effect of CBZ, and reversed the CBZ-induced increases in the protein expressions of mrd1a and P-gp (p < 0.05).
Conclusion: GC reverses CBZ drug resistance, probably through downregulation of P-gp expression. This finding indicates that GC is a potential anti-epilepsy drug, but it merits further studies.
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Guo H, Wang P, Chang J, Yin Q, Liu C, Li M, Dang X, Lu F. Effect of processed maize stover as an alternative energy source in swine production. J Anim Feed Sci 2020. [DOI: 10.22358/jafs/124044/2020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Dorschner R, Dang X, Eliceiri B, Baird A. 978 CD44 expression on leukocytes is dynamically regulated by ECRG4. J Invest Dermatol 2019. [DOI: 10.1016/j.jid.2019.03.1054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Jia C, Han S, Wei L, Dang X, Niu Q, Chen M, Cao B, Liu Y, Jiao H. Protective effect of compound Danshen (Salvia miltiorrhiza) dripping pills alone and in combination with carbamazepine on kainic acid-induced temporal lobe epilepsy and cognitive impairment in rats. Pharm Biol 2018; 56:217-224. [PMID: 29560767 PMCID: PMC6130614 DOI: 10.1080/13880209.2018.1432665] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
CONTEXT Temporal lobe epilepsy (TLE) is resistant to antiepileptic drugs (AEDs) and is associated with cognitive impairment. The modern Chinese medicine, compound Danshen dripping pills (CDDP), is clinically effective in treating epilepsy and improving cognitive impairment. OBJECTIVE This study evaluated the protective effects of CDDP alone and in combination with carbamazepine (CBZ) on kainic acid-induced TLE and cognitive impairment in rats. MATERIALS AND METHODS Sprague-Dawley rats were randomly divided into five groups: control (sham operated), model, CDDP, CBZ and combined. A TLE model was then created via bilateral intrahippocampal injection of 0.35 μg kainic acid (KA). Rats received CDDP (85 mg/kg), CBZ (100 mg/kg) or combined (85 mg/kg CDDP +100 mg/kg CBZ) via intragastric administration for 90 d, respectively. Seizure intensity, apoptosis and glial cell line-derived neurotrophic factor (GDNF) were measured. Furthermore, the improvement in cognitive impairment and hippocampal neuronal damage was evaluated. RESULTS CDDP combined with CBZ significantly decreased seizure severity and frequency (p < 0.05) and ameliorated cognitive impairment (p < 0.05). The model group showed a significant reduction of neurons and Bcl-2/Bax expression in the hippocampus CA3 area (p < 0.01), the combined groups significantly reversed these change (p < 0.01). GDNF expression in the combined groups showed a clear increase over the model group (p < 0.05). CONCLUSION These findings support the use of CDDP as an adjuvant drug for the treatment of TLE and cognitive deficit. Its mechanism might be related to an anti-apoptosis effect and up-regulation of GDNF.
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MESH Headings
- Animals
- Anticonvulsants/pharmacology
- Apoptosis/drug effects
- Behavior, Animal/drug effects
- CA3 Region, Hippocampal/drug effects
- CA3 Region, Hippocampal/metabolism
- CA3 Region, Hippocampal/pathology
- CA3 Region, Hippocampal/physiopathology
- Camphanes
- Carbamazepine/pharmacology
- Cognition/drug effects
- Cognitive Dysfunction/chemically induced
- Cognitive Dysfunction/physiopathology
- Cognitive Dysfunction/prevention & control
- Cognitive Dysfunction/psychology
- Disease Models, Animal
- Drug Therapy, Combination
- Drugs, Chinese Herbal/pharmacology
- Epilepsy, Temporal Lobe/metabolism
- Epilepsy, Temporal Lobe/pathology
- Epilepsy, Temporal Lobe/physiopathology
- Epilepsy, Temporal Lobe/prevention & control
- Escape Reaction/drug effects
- Glial Cell Line-Derived Neurotrophic Factor/metabolism
- Kainic Acid
- Male
- Maze Learning/drug effects
- Panax notoginseng
- Proto-Oncogene Proteins c-bcl-2/metabolism
- Rats, Sprague-Dawley
- Reaction Time/drug effects
- Salvia miltiorrhiza
- Time Factors
- bcl-2-Associated X Protein/metabolism
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Affiliation(s)
- Chen Jia
- Department of Pharmacy, Lanzhou University Second Hospital, Lanzhou, China
| | - Shanshan Han
- Department of Pharmacy, Huaihe Hospital of Henan University, Kaifeng, China
| | - Liming Wei
- Department of Pharmacy, Lanzhou University Second Hospital, Lanzhou, China
| | - Xiangji Dang
- Department of Pharmacy, Lanzhou University Second Hospital, Lanzhou, China
| | - Qianqian Niu
- College of Pharmacy, Lanzhou University, Lanzhou, China
| | - Mengyu Chen
- College of Pharmacy, Lanzhou University, Lanzhou, China
| | - Boqun Cao
- College of Pharmacy, Lanzhou University, Lanzhou, China
| | - Yuting Liu
- College of Pharmacy, Lanzhou University, Lanzhou, China
| | - Haisheng Jiao
- Department of Pharmacy, Lanzhou University Second Hospital, Lanzhou, China
- CONTACT Haisheng JiaoDepartment of Pharmacy, Lanzhou University Second Hospital, Lanzhou730030, China
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Wang W, Qu X, Dang X, Shang D, Yang L, Li Y, Xu D, Martin JG, Hamid Q, Liu J, Chang Y. Human β-defensin-3 induces IL-8 release and apoptosis in airway smooth muscle cells. Clin Exp Allergy 2017; 47:1138-1149. [PMID: 28437599 DOI: 10.1111/cea.12943] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2017] [Revised: 04/12/2017] [Accepted: 04/14/2017] [Indexed: 12/23/2022]
Abstract
BACKGROUND Human airway smooth muscle cells (ASMCs) may have a pro-inflammatory role through the release of inflammatory mediators. Increasing evidence indicates that human β-defensins (HBDs) are related to pathogenesis of asthma. OBJECTIVES To examine the plasma level of HBD-1, HBD-2 and HBD-3 in asthmatic patients and the expression of their mouse orthologues in the lung tissue of a mouse model of chronic severe asthma. Further to investigate the effect of HBD-3 on the release of the pro-inflammatory cytokine IL-8 and to explore the mechanisms. METHODS The plasma levels of HBD-1, HBD-2 and HBD-3 from 34 healthy controls and 25 asthmatic patients were determined by ELISA. The expression of mouse β-defensins MBD-1, MBD-3 and MBD-14 in the lung tissue of asthmatic mice was detected by Western blot. The ASMCs were cultured with HBD-3 for 24 hour, and then the supernatant level of IL-8 was evaluated by ELISA and the cell viability was examined by WST-1 assay. The signalling pathway was investigated with blocking antibodies or pharmacological inhibitors. RESULTS The plasma levels of HBD-1 and HBD-3 were elevated in asthmatic patients, and the expression of MBD-14, the mouse orthologue for HBD-3, was increased in asthmatic mice. HBD-3-induced IL-8 production in a CCR6 receptor-specific manner and was dependent on multiple signalling pathways. Moreover, HBD-3-induced cell apoptosis concurrently, which was dependent on the ERK1/2 MAPK pathway. Mitochondrial ROS regulated both HBD-3-induced IL-8 production and cell apoptosis. CONCLUSIONS AND CLINICAL RELEVANCE These observations provide clear evidence of an important new mechanism for the promotion of airway inflammation and tissue remodelling with potential relevance for the treatment of asthma.
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Affiliation(s)
- W Wang
- Center for Translational Medicine, The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology and Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, China
| | - X Qu
- Center for Translational Medicine, The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology and Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, China
| | - X Dang
- Department of Respiration, The First Affiliated Hospital, Xi'an Jiaotong University, Xi'an, China
| | - D Shang
- Department of Respiration, The First Affiliated Hospital, Xi'an Jiaotong University, Xi'an, China
| | - L Yang
- Center for Mitochondrial Biology and Medicine, The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology and Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, China
| | - Y Li
- Center for Translational Medicine, The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology and Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, China
| | - D Xu
- Center for Translational Medicine, The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology and Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, China
| | - J G Martin
- Meakins-Christie Laboratories and Respiratory Division, The Research Institute of the McGill University Health Centre and Department of Medicine, McGill University, Montreal, Quebec, Canada
| | - Q Hamid
- Meakins-Christie Laboratories and Respiratory Division, The Research Institute of the McGill University Health Centre and Department of Medicine, McGill University, Montreal, Quebec, Canada.,College of Medicine, University of Sharjah, Sharjah, United Arab Emirates
| | - J Liu
- Center for Mitochondrial Biology and Medicine, The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology and Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, China
| | - Y Chang
- Center for Translational Medicine, The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology and Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, China
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Abstract
Topological insulators are very interesting from a fundamental point of view, and their unique properties may be useful for electronic and spintronic device applications. From the point of view of applications it is important to understand the decay behavior of carriers injected in the band gap of the topological insulator, which is determined by its complex band structure (CBS). Using first-principles calculations, we investigate the dispersion and symmetry of the complex bands of Bi2Se3 family of three-dimensional topological insulators. We compare the CBS of a band insulator and a topological insulator and follow the CBS evolution in both when the spin-orbit interaction is turned on. We find significant differences in the CBS linked to the topological band structure. In particular, our results demonstrate that the evanescent states in Bi2Se3 are non-trivially complex, i.e. contain both the real and imaginary contributions. This explains quantitatively the oscillatory behavior of the band gap obtained from Bi2Se3 (0 0 0 1) slab calculations.
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Affiliation(s)
- J Betancourt
- Department of Physics and Astronomy, University of Puerto Rico, San Juan, PR 00931, USA
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Wang P, Fan C, Chang J, Yin Q, Song A, Dang X, Lu F. Study on effects of microbial fermented soyabean meal on production performances of sows and suckling piglets and its acting mechanism. J Anim Feed Sci 2016. [DOI: 10.22358/jafs/65582/2016] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Dang X, Jiao H. Hypersensitive syndrome reaction of antiepileptic drug: two case reports and literature review. J Chin Pharm Sci 2015. [DOI: 10.5246/jcps.2015.02.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Barish M, Weng L, D'Apuzzo M, Forman S, Brown C, Ben Horin I, Volovitz I, Ram Z, Chang A, Wainwright D, Dey M, Han Y, Lesniak M, Chow K, Yi J, Shaffer D, Gottschalk S, Clark A, Safaee M, Oh T, Ivan M, Kaur R, Sun M, Lu YJ, Ozawa T, James CD, Bloch O, Parsa A, Debinski W, Choi YA, Gibo DM, Dey M, Wainwright D, Chang A, Han Y, Lesniak M, Herold-Mende C, Mossemann J, Jungk C, Ahmadi R, Capper D, von Deimling A, Unterberg A, Beckhove P, Jiang H, Klein SR, Piya S, Vence L, Yung WKA, Sawaya R, Heimberger A, Conrad C, Lang F, Gomez-Manzano C, Fueyo J, Jung TY, Choi YD, Kim YH, Lee JJ, Kim HS, Kim JS, Kim SK, Jung S, Cho D, Kosaka A, Ohkuri T, Okada H, Erickson K, Malone C, Ha E, Soto H, Hickey M, Owens G, Liau L, Prins R, Minev B, Kruse C, Lee J, Dang X, Borboa A, Coimbra R, Baird A, Eliceiri B, Mathios D, Lim M, Ruzevick J, Nicholas S, Polanczyk M, Jackson C, Taube J, Burger P, Martin A, Xu H, Ochs K, Sahm F, Opitz CA, Lanz TV, Oezen I, Couraud PO, von Deimling A, Wick W, Platten M, Ohkuri T, Ghosh A, Kosaka A, Zhu J, Ikeura M, Watkins S, Sarkar S, Okada H, Pellegatta S, Pessina S, Cantini G, Kapetis D, Finocchiaro G, Avril T, Vauleon E, Hamlat A, Mosser J, Quillien V, Raychaudhuri B, Rayman P, Huang P, Grabowski M, Hamburdzumyan D, Finke J, Vogelbaum M, Renner D, Litterman A, Balgeman A, Jin F, Hanson L, Gamez J, Carlson B, Sarkaria J, Parney I, Ohlfest J, Pirko I, Pavelko K, Johnson A, Sims J, Grinshpun B, Feng Y, Amendolara B, Shen Y, Canoll P, Sims P, Bruce J, Lee SX, Wong E, Swanson K, Wainwright D, Chang A, Dey M, Balyasnikova I, Cheng Y, Han Y, Lesniak M, Wang F, Wei J, Xu S, Ling X, Yaghi N, Kong LY, Doucette T, Weinberg J, DeMonte F, Lang F, Prabhu S, Heimberger A, Wiencke J, Accomando W, Houseman EA, Nelson H, Wrensch M, Wiemels J, Zheng S, Hsuang G, Bracci P, Kelsey K. IMMUNOLOGY RESEARCH. Neuro Oncol 2013. [DOI: 10.1093/neuonc/not177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Kardami E, Banerji S, Doble BW, Dang X, Fandrich RR, Jin Y, Cattini PA. PKC-Dependent Phosphorylation May Regulate the Ability of Connexin43 to Inhibit DNA Synthesis. ACTA ACUST UNITED AC 2009; 10:293-7. [PMID: 14681031 DOI: 10.1080/cac.10.4-6.293.297] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Phosphorylation affects several biological functions of connexin43 (Cx43), although its role on Cx43-mediated inhibition of DNA synthesis is not known. Previous studies showed increased Cx43 phosphorylation on serine in response to growth factor stimulation of cardiomyocytes, mediated by protein kinase C-epsilon (PKCepsilon). Here we report that activation of PKCepsilon is also necessary for stimulation of cardiomyocyte DNA synthesis and mitosis. We have investigated the participation of specific serine residues that are putative PKC targets in producing phosphorylated Cx43 species and also in regulating DNA synthesis in cardiomyocytes. Interference with the PKC signaling system and/or the phosphorylation of specific amino-acids of Cx43 may allow regulation of the mitogenic response.
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Affiliation(s)
- E Kardami
- Institute of Cardiovascular Sciences and Departments of Anatomy and Physiology, University of Manitoba, Winnipeg, Manitoba, Canada.
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Dang X, Yi Z, Wang X, Wu X, Zhang X, He Q. [Preventive efficiency of IVIgG on nosocomial infection in the children with nephrotic syndrome]. Hunan Yi Ke Da Xue Xue Bao 2002; 24:290-2. [PMID: 12016811] [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: 02/25/2023]
Abstract
In order to study the preventive efficiency of IVIgG on nosocomial infection(NI), 54 cases of the children with nephrotic syndrome(NS) were randomly divided into 2 groups, test group(n = 22) and control group(n = 32). Routine treatment was adopted to all cases. Besides the routine treatment, the test group was injected with IVIgG(100-300 mg.kg-1.d-1) for 2-3 days. The results showed that the NI rate of test group (13.6%) was significantly lower than that of the control(46.88%) (P < 0.05), and the hospital days of the test group(27.33 +/- 15.51) d was significantly shorter than that of the control(64.50 +/- 18.52) d (P < 0.05). These suggest that IVIgG, as one of the ways to prevent NI, can improve the immune state and effectively prevent the NI in the children with NS.
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Affiliation(s)
- X Dang
- Department of Pediatrics, Second Affiliated Hospital, Hunan Medical University, Changsha 410011
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Qian B, Sun Y, Guo Y, Dang X, Ru B. A prourokinase-RGDS chimera : Construction, expression and characterization. Sci China C Life Sci 1999; 42:259-266. [PMID: 20229339 DOI: 10.1007/bf03183601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/1998] [Indexed: 05/28/2023]
Abstract
A tetrapeptide, RGDS, was inserted into proUK kringle domain G118-L119 by the construction of a mutant proUK-RGDS gene. The gene was expressed in the baculovirus expression system. Immunoaffinity chromatography was used to purify the chimera and protein with purity over 90% was achieved. The chimera was tested for its platelet membrane binding function and showed a calcium-dependent platelet binding activity. Amidolytic activity of the chimera was tested. The result indicated that specific amidolytic activity of plasmin activated chimera was 62 000 IU/mg, comparable to the previously reported 65 355 IU/mg of plasmin activated natural proUK([1]). Activation of plasminogen by the chimera after plasmin treatment followed Michieal-Menten kinetics, and the Km was 0.97 mumol/L, which was also comparable to 1.64 mumol/L of native urokinase. The chimera also showed intensive ability to inhibit platelet aggregationin vitro. These results indicate that this chimera might be useful as a bifunctional thrombolytic agent.
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Affiliation(s)
- B Qian
- National Laboratory of Protein Engineering, Department of Biochemistry and Molecular Biology, Life Science Centre, Peking University, 100871, Beijing, China
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Wang K, Dang X, Wu Y, Liu A, Lei G, Li X, Gao X, Yang D. [Treatment of old femoral neck fracture with implantation of a vascularized fibular graft]. Zhonghua Wai Ke Za Zhi 1998; 36:261-3, 57. [PMID: 11825382] [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: 02/23/2023]
Abstract
OBJECTIVE To investigate the healing of old femoral neck fracture treated with transplantation of vascularized fibula graft accompanied with lag screw, and rehabilitation of and precaution against ischemic necrosis of femoral head. METHOD Vascularized fibula autograft was transplanted to the anterolateral side of the femoral neck with an internal fixator of lag screw. Fibular artery and vein were anastomosed with lateral circumflex artery and vein. RESULT 186 of 229 cases subjected to systemic X-ray films and function follow-up (3 to 15 years). The percentage of fracture healing was 93.0% the sulass rate 86.5%. CONCLUSION Fibula with blood supply and compressed screw have a combined fixation effect of the old femoral neck fracture. Fibula is solid enough for supporting the femoral head and preventing it from collapse. Vascularized fibular grafting provides blood supply to the affected femoral head and neck, promoting femoral head restoration and reconstruction.
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Affiliation(s)
- K Wang
- Orthopaedic Department, Second Affiliated Hospital of Xi'an Medical University, Xi'an 710004
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Li J, Wu X, Dang X, Sun X, Zhao H, Hua Y. [Effect of +Gz-induced cerebral ischemia on the distribution of nitric oxide synthase in rabbit brain]. Space Med Med Eng (Beijing) 1998; 11:102-6. [PMID: 11543224] [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: 04/16/2023]
Abstract
In order to study the effect of repeated short termed + Gz -induced cerebral ischemia on rabbit brain, rabbits were exposed to +4.0 Gz for 3 times (with 30 min interval in between) which caused the arterial pressure at eye level dropped to 0 kPa and lasted for 30 s. Changes of distribution of the nitric oxide synthase(NOS) positive neurons in rabbit brain were observed using the NADPH-diaphorase histochemical reaction. The results showed that NOS positive neurons in the parietal cortex, piriform cortex, hippocampus and dentate gyrus increased by 167%, 126%, 321%, 172% (P < 0.01) respectively, immediately after repeated + Gz exposures, as compared with those of controls. It still remained significantly more than that in controls (P < 0.01) 1 h and 6 h after exposure. It suggests that NO may have some effect on the neurons during cerebral ischemia.
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Affiliation(s)
- J Li
- Navy General Hospital, Beijing, China
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