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Kun W, Xiaomei C, Lei Y, Huizhi Z. Modulating Th1/Th2 drift in asthma-related immune inflammation by enhancing bone mesenchymal stem cell homing through targeted inhibition of the Notch1/Jagged1 signaling pathway. Int Immunopharmacol 2024; 130:111713. [PMID: 38387192 DOI: 10.1016/j.intimp.2024.111713] [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: 12/10/2023] [Revised: 01/29/2024] [Accepted: 02/14/2024] [Indexed: 02/24/2024]
Abstract
Asthma, a disease intricately linked to immune inflammation, is significantly influenced by the immune regulatory effect of bone mesenchymal stem cells (BMSCs). This study aims to investigate changes in the homing of BMSCs in bronchial asthma, focusing on the Notch homolog (Notch)1/Jagged1 signaling pathway's role in regulating T helper 1(Th1)/T helper 2(Th2) drift. Additionally, we further explore the effects and mechanisms of homologous BMSCs implantation in asthma-related immune inflammation. Following intervention with BMSCs, a significant improvement in the pathology of rats with asthma was observed. Simultaneously, a reduction in the expression of inflammatory cells and inflammatory cytokines, including tumor necrosis factor-α (TNF-α), interleukin(IL)-4, and IL-13 was observed in bronchoalveolar lavage fluid (BALF). Furthermore, there was an increase in the expression of Th1 cytokine Interferon-γ(IFN-γ)and the transcription factor T-box expressed in T cell (T-bet), while the expression of Th2 cytokine IL-13 and transcription factor GATA binding protein (GATA)-3 decreased in lung tissue. This indicates that the Th1/Th2 drift leans towards Th1, which a crucial in ameliorating asthma inflammation. Importantly, inhibition of the Notch1 signaling pathway led to an increased expression of the Stromal cell-derived factor-1(SDF-1)/C-X-C motif chemokine receptor (CXCR)4 chemokine axis. Consequently, the homing ability of bone marrow mesenchymal stem cells to asthma-affected lung tissue was significantly enhanced. BMSCs demonstrated heightened efficacy in regulating the cytokine/chemokine network and Th1/Th2 balance, thereby restoring a stable state during the immune response process in asthma. In conclusion, inhibiting the Notch signaling pathway enhances the expression of the SDF-1 and CXCR4 chemokine axis, facilitating the migration of allogeneic BMSCs to injured lung tissues. This, in turn, promotes immune regulation and improves the Th1/Th2 imbalance, thereby enhancing the therapeutic effect on asthmatic airway inflammation.
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Affiliation(s)
- Wang Kun
- Huixue Research Center, Anhui University of Chinese Medicine, Hefei 230038, China; College of Traditional Chinese Medicine, Anhui University of Chinese Medicine, Hefei 230012, China; Key Laboratory of Xin'an Medical Science, Ministry of Education, Anhui University of Chinese Medicine, Hefei 230038, China
| | - Cao Xiaomei
- College of Traditional Chinese Medicine, Anhui University of Chinese Medicine, Hefei 230012, China
| | - Yang Lei
- Intensive Care Department, The Second Affiliated Hospital of Anhui University of Chinese Medicine, Hefei 230061, China
| | - Zhu Huizhi
- The First Affiliated Hospital of Anhui University of Chinese Medicine, Hefei 230031, China.
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Peng H, Jiazhen C, Lejin Z, Kun W, Shuping W, Lianyang C. Discrete element simulation of vibration compaction of slag subgrade. Sci Rep 2024; 14:5039. [PMID: 38424130 PMCID: PMC10904867 DOI: 10.1038/s41598-024-55276-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Accepted: 02/21/2024] [Indexed: 03/02/2024] Open
Abstract
In this study, to improve the compaction quality and parameters of slag, discrete element models of irregular rock particles (10-60 mm) and circular soil particles (5 mm) were established based on on-site slag screening results. The motion of the vibratory roller was captured by coupling the roadbed model with the roller model in a simulation in which the roller vibrated and compacted the slag subgrade. The results indicated that (1) the best compaction was achieved when the small particle content was 40%, the medium particle content was 20%, and the large particle content was 40%. (2) When the slag was dominated by small rock particles, the optimum compaction frequency was 28 Hz, and when large rock particles dominated, the optimum compaction frequency was 33 Hz. (3) Rock particles were the primary particles that experienced stress in the vibration compaction, and the compressive force and displacement depended on the particle size. (4) The longitudinal and vertical displacements and rotation angles of the soil and rock particles were examined. The results of this study are conducive for advancing the understanding of slag compaction and improving the working efficiency and compaction quality of rollers.
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Affiliation(s)
- Hu Peng
- Shandong Jiaotong University, Jinan, China
| | | | | | - Wang Kun
- Shandong Jiaotong University, Jinan, China
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Rongchang F, Kun W, Hui W. Study of the mechanism of action of sand therapy on atherosclerosis based on the two-phase flow-Casson model. Biomed Mater Eng 2024; 35:165-178. [PMID: 38043001 DOI: 10.3233/bme-230134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2023]
Abstract
BACKGROUND Sand therapy is a non-pharmacological physiotherapy method that uses the natural environment and resources of Xinjiang to treat through the heat transfer and magnetic effects of sand. OBJECTIVE Employing the two-phase flow-Casson blood flow model, we investigate the mechanism of atherosclerosis prevention via sand therapy, offering a biomechanical theoretical rationale for the prevention of atherosclerosis through sand therapy via the prism of computational fluid dynamics (CFD). METHODS Sand therapy experiments were conducted to obtain popliteal artery blood flow velocity, and blood was considered as a two-phase flow composed of plasma and red blood cells, and CFD method was applied to analyze the hemodynamic effects of Casson's blood viscosity model before and after sand therapy. RESULTS (1) The blood flow velocity increased by 0.24 m/s and 0.04 m/s at peak systolic and diastolic phases, respectively, after sand therapy; the axial velocity of blood vessels increased by 28.56% after sand therapy. (2) The average red blood cell viscosity decreased by 0.00014 Pa ⋅ s after sand therapy. (3) The low wall shear stress increased by 1.09 Pa and the high wall shear stress reached 41.47 Pa after sand therapy. (4) The time-averaged wall shear stress, shear oscillation index and relative retention time were reduced after sand therapy. CONCLUSION The increase of blood flow velocity after sand therapy can reduce the excessive deposition of cholesterol and other substances, the decrease of erythrocyte viscosity is beneficial to the migration of erythrocytes to the vascular center, the increase of low wall shear stress has a positive effect on the prevention of atherosclerosis, and the decrease of time-averaged wall shear stress, shear oscillation index and relative retention time can reduce the occurrence of thrombosis.
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Affiliation(s)
- Fu Rongchang
- College of Intelligent Manufacturing Modern Industry, School of Mechanical Engineering, Xinjiang University, Urumqi, China
| | - Wang Kun
- College of Intelligent Manufacturing Modern Industry, School of Mechanical Engineering, Xinjiang University, Urumqi, China
| | - Wu Hui
- College of Intelligent Manufacturing Modern Industry, School of Mechanical Engineering, Xinjiang University, Urumqi, China
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Qingxin S, Kai J, Dandan Z, Linyu J, Xiuyuan C, Yubo F, Kun W, Yingchao H, Hao C, Jie S, Zhi C, Hongxing S. Programmable DNA hydrogel provides suitable microenvironment for enhancing autophagy-based therapies in intervertebral disc degeneration treatment. J Nanobiotechnology 2023; 21:350. [PMID: 37759249 PMCID: PMC10537074 DOI: 10.1186/s12951-023-02109-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Accepted: 09/15/2023] [Indexed: 09/29/2023] Open
Abstract
The pathogenesis of intervertebral disc degeneration (IVDD) is attributed to metabolic dysregulation within the extracellular matrix and heightened apoptosis of nucleus pulposus cells (NPC). Therefore, a potential therapeutic strategy for managing IVDD involves the reestablishment of metabolic equilibrium within the extracellular matrix and the suppression of excessive myeloid cell apoptosis. The microRNA, miR-5590, displays marked differential expression in degenerative nucleus pulposus (NP) tissues and exerts a direct influence on the regulation of DDX5 expression. This, in turn, modulates mammalian target of rapamycin (mTOR) phosphorylation, thereby impacting autophagy and apoptosis. However, ensuring the smooth delivery of miRNA to a specific injury site poses a significant challenge. To address this issue, a multifunctional DNA hydrogel was developed and subsequently loaded with miR-5590 via spherical nucleic acids (SNAs) for the treatment of IVDD. The hydrogel, which exhibits versatility, has the potential to be administered through injection at the site of injury, resulting in a consistent and prolonged release of miR-5590. This leads to the creation of a genetic microenvironment within the NP, which triggers the onset of autophagy in NPCs and subsequently suppresses apoptosis. As a result, this process regulates the metabolic equilibrium within the extracellular matrix, thereby impeding the in vitro and in vivo progression of IVDD. The amalgamation of miRNAs and biomaterials offers a promising therapeutic strategy for the management of IVDD in clinical settings.
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Affiliation(s)
- Song Qingxin
- Department of Spine Surgery Renji Hospital, Shanghai JiaoTong University School of Medicine, 160 Pujian Road, Shanghai, 200127, P. R. China
| | - Jiang Kai
- Department of Ophthalmology and Vision Science, Ear, Nose and Throat Hospital, Shanghai Eye, Fudan University, Shanghai, China
| | - Zheng Dandan
- Department of Spine Surgery Renji Hospital, Shanghai JiaoTong University School of Medicine, 160 Pujian Road, Shanghai, 200127, P. R. China
| | - Jin Linyu
- Department of Orthopedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopedics, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, P. R. China
| | - Chen Xiuyuan
- Department of Spine Surgery Renji Hospital, Shanghai JiaoTong University School of Medicine, 160 Pujian Road, Shanghai, 200127, P. R. China
| | - Feng Yubo
- Department of Spine Surgery Renji Hospital, Shanghai JiaoTong University School of Medicine, 160 Pujian Road, Shanghai, 200127, P. R. China
| | - Wang Kun
- Department of Spine Surgery Renji Hospital, Shanghai JiaoTong University School of Medicine, 160 Pujian Road, Shanghai, 200127, P. R. China
| | - Han Yingchao
- Department of Spine Surgery Renji Hospital, Shanghai JiaoTong University School of Medicine, 160 Pujian Road, Shanghai, 200127, P. R. China
| | - Chen Hao
- Department of Spine Surgery Renji Hospital, Shanghai JiaoTong University School of Medicine, 160 Pujian Road, Shanghai, 200127, P. R. China
| | - Song Jie
- Department of Instrument Science and Engineering, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China.
- The Cancer Hospital of the University of Chinese Academy of Sciences, Hangzhou, 310022, Zhejiang, China.
| | - Chen Zhi
- Department of Spine Surgery Renji Hospital, Shanghai JiaoTong University School of Medicine, 160 Pujian Road, Shanghai, 200127, P. R. China.
| | - Shen Hongxing
- Department of Spine Surgery Renji Hospital, Shanghai JiaoTong University School of Medicine, 160 Pujian Road, Shanghai, 200127, P. R. China.
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Ding L, Kun W, Xu W, Chen S, Cai Z. Comparative analysis of clinicopathological characteristics of central necrotizing breast cancer and basal cell-like breast cancer. Front Oncol 2023; 13:915949. [PMID: 37114130 PMCID: PMC10127251 DOI: 10.3389/fonc.2023.915949] [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: 04/08/2022] [Accepted: 03/15/2023] [Indexed: 04/03/2023] Open
Abstract
PurposeThis study aims to compare the clinicopathological and immunohistochemical characteristics of centrally necrotizing carcinoma of the breast (CNC) and basal-like breast cancer (BLBC), as well as to analyze the characteristics of the molecular typing of the CNC.MethodsThe clinicopathological features of 69 cases of CNC and 48 cases of BLBC were observed and compared. EnVision immunohistochemical staining was performed to detect the expressions of hypoxia-inducible factor 1α (HIF-1α), breast cancer susceptibility gene 1 (BRCA1), and vascular endothelial growth factor (VEGF) in CNC and BLBC.ResultsThe age of the 69 patients ranged from 32 to 80 years, with an average of 54.55 years. Gross examination showed that most tumors were well-defined single central nodules with a diameter of 1.2~5.0 cm. Microscopically, there is a large necrotic or acellular area in the center of the tumor, mainly composed of tumor coagulative necrosis with varying degrees of fibrosis or hyaline degeneration. A small amount of cancer tissue remained in the form of a ribbon or small nest around the necrotic focus. Among 69 cases of CNC, the proportion of basal cell type (56.5%) was significantly higher than that of lumen type A (18.84%), lumen type B (13.04%), HER2 overexpression (5.8%), and nonexpression (5.8%). A total of 31 cases were followed up for 8~50 months, with an average of 33.94 months. There have been nine cases of disease progression. When compared to BLBC, there were no significant differences in BRCA1 and VEGF protein expression in response to CNC (p > 0.05), but there were significant differences in protein expression in HIF-1α (p < 0.05).ConclusionThe molecular typing of CNC showed that over half of those were BLBC. No statistically significant difference in the expression of BRCA1 was observed between CNC and BLBC; thus, we predict that targeted therapy for BRCA1 in BLBC may also have considerable effects in CNC patients. The expression of HIF-1α is significantly different in CNC and BLBC, and perhaps HIF-1α can be used as a new entry point to distinguish between the two. There is a significant correlation between the expression of VEGF and HIF-1α in BLBC, and there was no significant correlation between the expression levels of the two proteins in CNC.
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Affiliation(s)
- Li Ding
- Department of Pathology, The First Affiliated Hospital of Bengbu Medical College, Bengbu, China
| | - Wang Kun
- Department of Pathology, Mengcheng Hospital of Traditional Chinese Medicine, Bozhou, Anhui, China
| | - Wenjing Xu
- Department of Pathology, The First Affiliated Hospital of Bengbu Medical College, Bengbu, China
| | - Shaohua Chen
- Department of Pathology, Bengbu Medical College and The First Affiliated Hospital of Bengbu Medical College, Bengbu, China
| | - Zhaogen Cai
- Department of Pathology, Bengbu Medical College and The First Affiliated Hospital of Bengbu Medical College, Bengbu, China
- *Correspondence: Zhaogen Cai,
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Tingting Z, Xiuli Z, Kun W, Liping S, Yongliang Z. A review: extraction, phytochemicals, and biological activities of rambutan (Nephelium lappaceum L) peel extract. Heliyon 2022; 8:e11314. [DOI: 10.1016/j.heliyon.2022.e11314] [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] [Received: 05/16/2022] [Revised: 08/05/2022] [Accepted: 10/26/2022] [Indexed: 11/09/2022] Open
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Yiyi O, Jie P, Jiong L, Jinsheng T, Kun W, Jing L. Research on the influence of sports participation on school bullying among college students—Chain mediating analysis of emotional intelligence and self-esteem. Front Psychol 2022; 13:874458. [PMID: 36248587 PMCID: PMC9554478 DOI: 10.3389/fpsyg.2022.874458] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2022] [Accepted: 08/30/2022] [Indexed: 11/19/2022] Open
Abstract
Purposes This paper aims to discuss the relationship between college students’ sports participation, school bullying, emotional intelligence and self-esteem. At the same time, it explores the intrinsic mechanisms of school bullying, in order to provide a reference for reducing bullying phenomenon among college students, and pave the way for college students to lead happy, healthy and confident lives. Methods A total of 1,317 students (725 male students, 592 female students, 21.31 ± 3.28 years old) from four universities in Southwest China were selected as subjects for this survey. They were selected by stratified random sampling, and the data needed was obtained using a structured questionnaire. The data was subsequently processed with statistical software SPSS19.0 and AMOS21.0. Results (1) Sports participation has a significant and positive correlation with emotional intelligence and self-esteem, likewise, it has a significant negative correlation with school bullying. Emotional intelligence has a marked positive correlation with self-esteem, at the same time it has a significant negative correlation with school bullying. In addition, self-esteem is strongly negative correlated with school bullying. (2) Sports participation has a direct effect on school bullying (ES = −0.271). Emotional intelligence (ES = −0.144) and self-esteem (ES = −0.065) also play a significant mediating role between sports participation and school bullying, and the chain mediating force of emotional intelligence—self-esteem also reaches a significant level (ES = −0.016). Conclusion Sports participation affects school bullying among college students not only directly but also indirectly, such as through emotional intelligence, the mediating role of self-esteem, and the chain mediating role of emotional intelligence to self-esteem. Apart from sports participation, emotional intelligence is another key factor that affects college students’ school bullying. Therefore, while attaching great importance to college students’ sport participation, schools should also provide courses aimed at developing students’ emotional intelligence.
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Affiliation(s)
- Ouyang Yiyi
- College of Physical Education, Chongqing University of Posts and Telecommunications, Chongqing, China
| | - Peng Jie
- College of Physical Education, Liupanshui Normal University, Liupanshui, China
| | - Luo Jiong
- College of Physical Education, Southwest University, Chongqing, China
| | - Teng Jinsheng
- College of Physical Education, Chongqing University of Posts and Telecommunications, Chongqing, China
| | - Wang Kun
- College of Physical Education, Southwest University, Chongqing, China
| | - Li Jing
- College of Physical Education, Sichuan University, Chengdu, China
- *Correspondence: Li Jing,
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Yiyi O, Jie P, Jiong L, Jinsheng T, Kun W, Jing L. Effects of short-video use on undergraduates’ weight- loss intention: a regulatory mediation model. Curr Psychol 2022. [DOI: 10.1007/s12144-022-03611-z] [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: 11/03/2022]
Abstract
AbstractThis research intends to explore the effects of short video use on college students’ weight loss intentions, and its intrinsic mechanism of action, based on the responses of 1268 students from three universities in southwest China to questionnaires with the instruments of a sports participation scale, body image scale, self-esteem scale and weight loss intention scale. The findings are listed as follows: 1) Short video use can significantly and positively predict weight loss intention; 2) Body image mediates the relationship between short video usage and weight loss intentions; 3) Self-esteem plays a regulatory effect as the direct path between short video use and weight loss intention as well as partial mediation effect of body image. The direct effect of short video use on weight loss intentions and the mediating effect of body image gradually increased with the decrease of self-esteem. The results of the study suggest that short video use can affect the weight loss intentions of college students through either a direct or indirect path created by the mediating role of body image. Meanwhile, the influence of self-esteem on weight loss intention can’t be ignored, which is another key factor that affects college students’ weight loss intentions beyond short video use and body image.
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Liu X, Xiao Q, Li Y, Hu G, Kun W, Xu W. Effect of post-discharge pharmacist-led follow-up on drug treatment in patients with deep venous thrombosis in primary hospitals in China. Pak J Pharm Sci 2022; 35:785-791. [PMID: 35791477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Warfarin and rivaroxaban were the two most commonly-used anticoagulant drugs for Deep venous thrombosis (DVT). The aim of this study was to explore the effects of post-discharge pharmacist-led follow-up on drug treatment in patients with DVT in primary hospitals from a pharmacological perspective. A total of 125 patients were recruited from July 2017 to June 2019 and randomized to either a control group or an intervention group. The control group was given routine medication guidance, clinical pharmacists followed up at 3 and 6 months after discharge. The intervention group was based on the control group and was followed up weekly for 6 months after discharge. For patients taking warfarin, the percentage of time in therapeutic range (TTR) and TTR>65% were significantly higher in the intervention group (p<0.05) and they also had less frequent dose changes. For patients taking warfarin or rivaroxaban, vascular ultrasonography showed better improvement rate in the intervention group (p<0.05). Pharmacist-led follow-up showed that the medication adherence (p<0.05) were significantly improved. There were lower risks of total and minor hemorrhage events and thrombosis events in the intervention group (p<0.05). Pharmacist-led follow-up not only reduced the risk of hemorrhage and thrombosis events, but also improved adherence to anticoagulation drugs.
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Affiliation(s)
- Xiaojin Liu
- Department of Drug Clinical Trial Center, QiLu Hospital of Shandong University Dezhou Hospital, Dezhou, Shandong, China
| | - Quan Xiao
- Department of Drug Clinical Trial Center, QiLu Hospital of Shandong University Dezhou Hospital, Dezhou, Shandong, China
| | - Yun Li
- Department of Traditional Chinese Medicine Department, QiLu Hospital of Shandong University Dezhou Hospital, Dezhou, Shandong, China
| | - Guobing Hu
- Department of Pharmacy, QiLu Hospital of Shandong University Dezhou Hospital, Dezhou, Shandong, China
| | - Wang Kun
- Department of Pharmacy, QiLu Hospital of Shandong University Dezhou Hospital, Dezhou, Shandong, China
| | - Wanbo Xu
- Department of Radiology, QiLu Hospital of Shandong University Dezhou Hospital, Dezhou, Shandong, China
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Lian Y, Peijie C, Kun W, Tingran Z, Hengxu L, Jinxin Y, Wenyun L, Jiong L. The Influence of Family Sports Attitude on Children's Sports Participation, Screen Time, and Body Mass Index. Front Psychol 2022; 12:697358. [PMID: 34987440 PMCID: PMC8720873 DOI: 10.3389/fpsyg.2021.697358] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [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: 04/19/2021] [Accepted: 11/04/2021] [Indexed: 12/11/2022] Open
Abstract
Background: Children’s physical health is an important resource for a country’s future construction. However, researchers found that the physical fitness of young children around the world has declined during the two decades, from 1992 to 2012. The decline in the physique of young children has caused widespread concern around the world. Children’s main living places are families and kindergartens, so this research explores the impact of family factors on children’s body mass index (BMI) from the perspective of family attitudes, children’s sports participation, and screen time. Methods: A cross-sectional study was used to conduct a questionnaire survey of children in China. A total of 600 children were investigated, and 589 valid questionnaires were obtained. SPSS21.0 statistical analysis software was used for descriptive analysis, mean comparison, and correlation analysis of the data. AMOS 21.0 was used to construct a structural equation model and carry out path analysis. Results: (1) There are significant differences in children’s family sports attitude, sports participation, screen time, and BMI with different family structures, and parents’ education levels. (2) Family sports attitude is significantly positively correlated with parents’ education levels and children’s sports participation, and negatively correlated with children’s screen time and BMI. (3) Children’s sports participation and screen time play a chain-mediating role between family sports attitude and children’s BMI, and the role is a complete mediating role. Therefore, family sports attitudes can affect children’s physical health by affecting children’s sports participation and screen time. To promote children’s physical health, we should pay attention to the intervention of family sports attitude. (4) The mediating effects of exercise participation and screen time are similar in different family structures, so the structure of this study can be applied to different family structures. Conclusions: Children’s family sports attitude, sports participation, and screen time can affect children’s BMI. Children’s screen time and sports participation play a chain-mediating role in the influence of family sports attitudes on the path of children’s BMI. The results of this study will provide a useful reference for teachers and parents to control children’s physical health.
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Affiliation(s)
- Yin Lian
- Research Center for Exercise Detoxification, College of Physical Education, Southwest University, Chongqing, China.,Chongqing Medical and Health School, Chongqing, China
| | - Chen Peijie
- Leisure College, Shanghai University of Sport, Shanghai, China
| | - Wang Kun
- Research Center for Exercise Detoxification, College of Physical Education, Southwest University, Chongqing, China
| | - Zhang Tingran
- Research Center for Exercise Detoxification, College of Physical Education, Southwest University, Chongqing, China.,Integrative Exercise Physiology Laboratory, Department of Physical Education, Jeonbuk National University, Jeonju, South Korea
| | - Liu Hengxu
- Research Center for Exercise Detoxification, College of Physical Education, Southwest University, Chongqing, China
| | - Yang Jinxin
- Research Center for Exercise Detoxification, College of Physical Education, Southwest University, Chongqing, China
| | - Lu Wenyun
- Leisure College, Shanghai University of Sport, Shanghai, China
| | - Luo Jiong
- Research Center for Exercise Detoxification, College of Physical Education, Southwest University, Chongqing, China
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Zhihao W, Xia J, Shuhang W, Li Z, Lixin J, Junyi C, Qing C, Kun W, Cheng Y. Mobilization and geochemistry of nutrients in sediment evaluated by diffusive gradients in thin films: Significance for lake management. J Environ Manage 2021; 292:112770. [PMID: 34020304 DOI: 10.1016/j.jenvman.2021.112770] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Revised: 04/29/2021] [Accepted: 05/04/2021] [Indexed: 06/12/2023]
Abstract
Investigation of in-situ mobilization of both nitrogen (N) and phosphate (PO43-) in sediment is important for lake management strategy. In this paper, diffusion gradients in thin films (DGT) and DGT induced flux in sediments (DIFS) model are newly designed for in-situ measurement of iron (Fe), PO43-, nitrate (NO3-N) and ammonium (NH4-N), and nutrients' mobility in sediment in Lake Nanhu (China). According to DGT profiles together with physicochemical properties in sediment, (I) PO43- is released from (i) Fe-bound P plus loosely sorbed P in anoxic sediment and (ii) the loosely sorbed P in oxic sediment; (II) anoxic sediment inhibits nitrification and NO3-N release, but it favors denitrification and dissimilatory nitrate reduction to ammonium (DNRA), leading to NH4-N release; (III) Eh and organic matter are two key influence factors on mobility of PO43-, NO3-N and NH4-N. According to DIFS calculation, the dynamics of desorption and diffusion at two sites belong to (i) slow rate of resupply and (ii) fast resupply cases, respectively. Internal loadings are estimated to be 92.74 (PO43-), 268.1 (NH4-N) and -2466 kg a-1 (NO3-N), which reflects sediment mainly acts as a source for PO43- and NH4-N, and a sink for NO3-N in water. Based on sediment P release risk index (SPRRI), P release risks in lake sediments are estimated, ranging from light to relative high level. DGT and SPRRI aid choice of restoration methods for sediment, including sediment dredging, phytoremediation and in-situ inactivation.
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Affiliation(s)
- Wu Zhihao
- National Engineering Laboratory for Lake Pollution Control and Ecological Restoration, Institute of Lake Environment, Chinese Research Academy of Environmental Sciences (CRAES), Beijing, 100012, China; State Environmental Protection Key Laboratory for Lake Pollution Control, Institute of Lake Environment, Chinese Research Academy of Environmental Sciences (CRAES), Beijing, 100012, China
| | - Jiang Xia
- National Engineering Laboratory for Lake Pollution Control and Ecological Restoration, Institute of Lake Environment, Chinese Research Academy of Environmental Sciences (CRAES), Beijing, 100012, China; State Environmental Protection Key Laboratory for Lake Pollution Control, Institute of Lake Environment, Chinese Research Academy of Environmental Sciences (CRAES), Beijing, 100012, China
| | - Wang Shuhang
- National Engineering Laboratory for Lake Pollution Control and Ecological Restoration, Institute of Lake Environment, Chinese Research Academy of Environmental Sciences (CRAES), Beijing, 100012, China; State Environmental Protection Key Laboratory for Lake Pollution Control, Institute of Lake Environment, Chinese Research Academy of Environmental Sciences (CRAES), Beijing, 100012, China.
| | - Zhao Li
- State Environmental Protection Key Laboratory for Lake Pollution Control, Institute of Lake Environment, Chinese Research Academy of Environmental Sciences (CRAES), Beijing, 100012, China
| | - Jiao Lixin
- State Environmental Protection Key Laboratory for Lake Pollution Control, Institute of Lake Environment, Chinese Research Academy of Environmental Sciences (CRAES), Beijing, 100012, China
| | - Chen Junyi
- State Environmental Protection Key Laboratory for Lake Pollution Control, Institute of Lake Environment, Chinese Research Academy of Environmental Sciences (CRAES), Beijing, 100012, China
| | - Cai Qing
- State Environmental Protection Key Laboratory for Lake Pollution Control, Institute of Lake Environment, Chinese Research Academy of Environmental Sciences (CRAES), Beijing, 100012, China
| | - Wang Kun
- State Environmental Protection Key Laboratory for Lake Pollution Control, Institute of Lake Environment, Chinese Research Academy of Environmental Sciences (CRAES), Beijing, 100012, China
| | - Yao Cheng
- State Environmental Protection Key Laboratory for Lake Pollution Control, Institute of Lake Environment, Chinese Research Academy of Environmental Sciences (CRAES), Beijing, 100012, China; College of Water Science, Beijing Normal University, Beijing, 100875, China
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12
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Aichen Z, Kun W, Xiaochun S, Lingling T. LncRNA FGD5-AS1 promotes the malignant phenotypes of ovarian cancer cells via targeting miR-142-5p. Apoptosis 2021; 26:348-360. [PMID: 33974163 DOI: 10.1007/s10495-021-01674-0] [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] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/19/2021] [Indexed: 11/24/2022]
Abstract
Long non-coding RNAs (lncRNAs) have been reported to participate in regulating gene expression and are related to tumor progression. FGD5 antisense RNA 1 (FGD5-AS1) facilitates the progression of various tumors. However, the expression and function of FGD5-AS1 in ovarian cancer (OC) and its mechanism of action are not yet clear. Real-time polymerase chain reaction (RT-PCR) was employed to explore the expression levels of FGD5-AS1 and miR-142-5p in OC. The relationship between the expression of FGD5-AS1 and clinicopathological indicators of OC patients was analyzed by χ2 test. CCK-8 assay, BrdU assay, and Transwell assay were carried out to detect cell proliferation, migration, as well as invasion, respectively. Subcutaneous tumorigenesis experiment and lung metastasis model were used to examine the biological effects of FGD5-AS1 in OC in vivo. Dual luciferase reporter gene assay or RIP experiment was employed to explore the targeting relationship between FGD5-AS1 and miR-142-5p, as well as miR-142-5p and PD-L1 3'UTR. First, we found that FGD5-AS1 was markedly up-regulated in OC. Moreover, its high expression level was associated with positive local lymph node metastasis and higher T stage in OC patients. Gain-of-function and loss-of-function assays demonstrated that FGD5-AS1 facilitated the proliferation, migration, as well as invasion of OC cells. Mechanistically, it was revealed that FGD5-AS1 targeted miR-142-5p to repress its expression and function. Furthermore, miR-142-5p has a binding site for 3' UTR of PD-L1, and FGD5-AS1 could positively regulate PD-L1 expression via repressing miR-142-5p. The present study reports that FGD5-AS1/miR-142-5p/PD-L1 axis is involved in regulating OC progression.
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Affiliation(s)
- Zhang Aichen
- Department of Obstetrics and Gynecology, The Third Hospital of Jilin University, 126th Xiantai Street, Changchun, 130021, Jilin, China
| | - Wang Kun
- Department of Obstetrics and Gynecology, The Third Hospital of Jilin University, 126th Xiantai Street, Changchun, 130021, Jilin, China
| | - Sun Xiaochun
- Department of Obstetrics and Gynecology, The Third Hospital of Jilin University, 126th Xiantai Street, Changchun, 130021, Jilin, China.
| | - Tong Lingling
- Department of Obstetrics and Gynecology, The Third Hospital of Jilin University, 126th Xiantai Street, Changchun, 130021, Jilin, China.
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Honglian Y, Huanliang L, Wei Z, Xiaojun S, Xiujie G, Kefeng M, Kun W, Bo C, Yanjun F, Zhuge X. Thyroid-disrupting effects and mechanism of thiazole-Zn-induced thyroid cell hypertrophy and hyperplasia in male Sprague-Dawley rats. Ecotoxicol Environ Saf 2020; 196:110544. [PMID: 32251951 DOI: 10.1016/j.ecoenv.2020.110544] [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: 11/09/2019] [Revised: 03/23/2020] [Accepted: 03/24/2020] [Indexed: 06/11/2023]
Abstract
Thiazole-Zn is a systemic fungicide synthesized and developed in China that has been used for the prevention and treatment of bacterial and fungal diseases on fruits and vegetables. Thiazole-Zn is a new thyroid disruptor chemical. The purpose of this study was to clarify the thyroid-disrupting property of thiazole-Zn and the mechanism responsible for thyroid hormone (TH) biosynthesis inhibition in male rats induced by thiazole-Zn. First, the effects of different thiazole-Zn doses and exposure times on the thyroid weights, thyroid morphology and serum hormone levels of rats were investigated. The results showed that thiazole-Zn increased thyroid weights and serum thyroid-stimulating hormone (TSH) levels and induced thyroid cell hypertrophy and hyperplasia in a dose-related and time-related manner. Furthermore, measurement of thyroid radioiodine uptake in vivo in rats confirmed that thiazole-Zn inhibited active iodide uptake into the thyroid, which reduced circulating levels of serum T3 and T4. Decreases in circulating THs resulted in a compensatory increase in serum TSH levels through a negative feedback system. Subsequently, sustained excessive stimulation of the thyroid gland by TSH led to thyroid follicular cell hypertrophy and hyperplasia. In addition, thiazole-Zn increased sodium/iodide symporter (NIS) expression in the rat thyroid, and the increased NIS expression promoted and restored iodide uptake into the thyroids of rats. The risk of iodine intake inhibition by thiazole-Zn to humans, especially susceptible individuals, such as children and pregnant women, warrants additional attention.
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Affiliation(s)
- Yang Honglian
- Tianjin Institute of Environmental and Operational Medicine, Tianjin, 30050, China
| | - Liu Huanliang
- Tianjin Institute of Environmental and Operational Medicine, Tianjin, 30050, China
| | - Zhang Wei
- Tianjin Institute of Environmental and Operational Medicine, Tianjin, 30050, China
| | - She Xiaojun
- Tianjin Institute of Environmental and Operational Medicine, Tianjin, 30050, China
| | - Gao Xiujie
- Tianjin Institute of Environmental and Operational Medicine, Tianjin, 30050, China
| | - Ma Kefeng
- Tianjin Institute of Environmental and Operational Medicine, Tianjin, 30050, China
| | - Wang Kun
- Tianjin Institute of Environmental and Operational Medicine, Tianjin, 30050, China
| | - Cui Bo
- Tianjin Institute of Environmental and Operational Medicine, Tianjin, 30050, China.
| | - Fang Yanjun
- Tianjin Institute of Environmental and Operational Medicine, Tianjin, 30050, China.
| | - Xi Zhuge
- Tianjin Institute of Environmental and Operational Medicine, Tianjin, 30050, China.
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Yi Z, Wenwen L, Kun W, Jian S. [Overexpression of histone deacetylase 11 suppresses basal-like breast cancer cell invasion and metastasis]. Nan Fang Yi Ke Da Xue Xue Bao 2019; 39:751-759. [PMID: 31340905 DOI: 10.12122/j.issn.1673-4254.2019.07.01] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
OBJECTIVE Histone deacetylase 11 (HDAC11) is a class Ⅳ member of histone deacetylase family, and its role in regulating cancer cell invasion and metastasis remains unclear. We aimed to investigate the role of HDAC11 in regulating the biological behaviors of basal-like breast cancer (BLBC) cells. METHODS We analyzed the expression of HDAC11 based on Gene Expression Omnibus (GEO) and the Cancer Genome Atlas (TCGA). The effects of HDAC11 on the cell invasion and metastasis were examined using Transwell assay and in a mouse model. The interaction between HDAC11 and Twist was detected with immunoprecipitation. We identified HAS2 as a target gene of Twist using promoter luciferase assay and chromatin immunoprecipitation assay. RESULTS HDAC11 was lowly expressed in BLBC cells. HDAC11 overexpression suppressed BLBC cell invasion in vitro and their metastasis in nude mice. Mechanistically, HDAC11 directly interacted with Twist protein, antagonized its pro-invasive function and repressed Twist-induced HAS2 gene transcription. CONCLUSIONS Our data suggest that HDAC11 acts as a negative modulator of invasion and metastasis of BLBC cells.
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Affiliation(s)
- Zhang Yi
- Department of Pathology, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China.,Second Department of Breast Cancer, Cancer Center, Guangdong Provincial People's Hospital/Guangdong Academy of Medical Sciences, Guangzhou 510080, China
| | - Luo Wenwen
- Department of Pathology, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Wang Kun
- Second Department of Breast Cancer, Cancer Center, Guangdong Provincial People's Hospital/Guangdong Academy of Medical Sciences, Guangzhou 510080, China
| | - Shi Jian
- Department of Pathology, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China
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Pei-Yuan Z, Yu-Wei L, Xiang-Nan Z, Song T, Rong Z, Xiao-Xiao H, Sheng-Shuai S, Kun W, Cheng-Yun L. Overexpression of Axl reverses endothelial cells dysfunction in high glucose and hypoxia. J Cell Biochem 2019; 120:11831-11841. [PMID: 30848518 DOI: 10.1002/jcb.28462] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2018] [Revised: 12/03/2018] [Accepted: 12/06/2018] [Indexed: 01/24/2023]
Abstract
The receptor tyrosine kinase Axl is involved in diabetic vascular disease. This study aims to investigate the effect of high glucose on endothelial cells injury and Axl expression in hypoxia condition in vitro, and we present details of the mechanism associated with overexpression of Axl rescue the high glucose injury. Our results showed that high glucose impaired both human umbilical vein endothelial cells (HUVECs) and EAhy926 cells angiogenesis in hypoxia condition. In addition, high glucose inhibits Axl and hypoxia-inducible factor 1-α (HIF-1α) protein expression in hypoxia condition. Axl overexpression significantly reversed endothelial cells dysfunction in high glucose/hypoxia. Furthermore, Axl overexpression in EAhy926 cells increases HIF-1α protein synthesis through PI3K/Akt/mTOR/p70 S6K signal pathway but not Mek/Erk in high glucose/hypoxia condition. This study demonstrates that high glucose can alter Axl signaling and HIF-1α in hypoxia condition. Overexpression of Axl may rescue endothelial cells dysfunction and HIF-1α expression through its downstream signals in high glucose/hypoxia.
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Affiliation(s)
- Zuo Pei-Yuan
- Department of Geriatrics, Tongji Hospital Affiliated to The Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
| | - Liu Yu-Wei
- Department of Geriatrics, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, People's Republic of China
| | - Zha Xiang-Nan
- Department of Geriatrics, Beijing Hospital, Beijing, People's Republic of China
| | - Tong Song
- Department of Thoracic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
| | - Zhang Rong
- Department of Pediatrics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
| | - He Xiao-Xiao
- Department of Gastroenterology, Liyuan Hospital Affiliated to The Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
| | - Shan Sheng-Shuai
- Department of Geriatrics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
| | - Wang Kun
- Department of Geriatrics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
| | - Liu Cheng-Yun
- Department of Geriatrics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
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Juan S, Kun W, Mahemuti A. Changes of Notch-1 Expression in Sinoatrial Node Fat Pad of Canines with Chronic Atrial Fibrillation. J BIOMATER TISS ENG 2019. [DOI: 10.1166/jbt.2019.2085] [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: 11/23/2022]
Abstract
Objective: To investigate the changes of Notch-1 protein expression and the changes of Notch-1 and NICD contents in the sinoatrial node fat pad (SAN-FP) nerve plexus of canines with chronic atrial fibrillation in which atrial fibrillation of the left atrium was induced in chronic
pacing canines, in order to elucidate the relationship between the Notch signaling pathway of the SAN-FP nerve plexus and the occurrence and development of atrial fibrillation. Methods: Healthy Beagle dogs weighing 18 ± 2.66 kg, aged 7 to 9 years were randomly divided into a
sham operation (SO) group (n = 5) and an atrial fibrillation (AF) group (n = 5), respectively. Results: Atrial fibrillation was successfully induced in canines in the AF group by rapid pacing on the left atrium appendage. The scattered nerve plexus was observed in fat
cells of the SAN-FP. In contrast with the SO group, Notch-1 protein expression in the AF group was significantly increased (P < 0.05). No significantly statistical differences were observed in the concentration of Notch-1 and NICD between the AF group and the SO group (P >
0.05). In addition, no statistical differences in baseline Notch-1 and NICD concentrations were observed between the AF group and the SO group (P > 0.05). After an 8-week study, the concentrations of Notch-1 and NICD in the AF group were significantly increased compared with the
SO group (P < 0.05). Conclusion: During the occurrence and development of AF, Notch-1 was expressed in different phases in the SAN-FP nerve plexus. After combining with ligands, Notch-1 was activated as NICD to affect the downstream target genes.
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Abstract
Recent developments of photoelectrochemical biosensors for food analysis are summarized and the future prospects in this field are discussed.
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Affiliation(s)
- Lan Ge
- Key Laboratory of Modern Agriculture Equipment and Technology
- School of Chemistry and Chemical Engineering
- Jiangsu University
- Zhenjiang 212013
- P. R. China
| | - Qian Liu
- Key Laboratory of Modern Agriculture Equipment and Technology
- School of Chemistry and Chemical Engineering
- Jiangsu University
- Zhenjiang 212013
- P. R. China
| | - Nan Hao
- Key Laboratory of Modern Agriculture Equipment and Technology
- School of Chemistry and Chemical Engineering
- Jiangsu University
- Zhenjiang 212013
- P. R. China
| | - Wang Kun
- Key Laboratory of Modern Agriculture Equipment and Technology
- School of Chemistry and Chemical Engineering
- Jiangsu University
- Zhenjiang 212013
- P. R. China
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Botao W, Wenping F, Huan X, Lihui L, Xiaohuan Z, Kun W, Mengqi L, Junhao Y, Zhiye C. Value of Magnetic Resonance Imaging Texture Analysis in the Differential Diagnosis of Benign and Malignant Breast Tumors. ACTA ACUST UNITED AC 2019; 34:33-37. [DOI: 10.24920/003516] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Xuan H, Feng-Ning L, Zheng-Guo F, Qi-Long S, Qi-Jia Z, Zhi C, Kun W, Ce Z, Zhong-Tang L. Occipital Condyle Screw Placement Using an Individualized Navigation Template Based on Three-Dimensional Printing. j med imaging hlth inform 2018. [DOI: 10.1166/jmihi.2018.2344] [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: 11/23/2022]
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Ma JF, Yang HY, Kun W, Liu XE. Structural modification of hemicelluloses and lignin based on the biorefinery process with white-rot fungal. Carbohydr Polym 2016; 153:7-13. [DOI: 10.1016/j.carbpol.2016.07.085] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2016] [Revised: 07/19/2016] [Accepted: 07/19/2016] [Indexed: 10/21/2022]
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Na Z, Zhengwen W, Xinqing S, Kun W. Diversity components and assembly patterns of plant functional traits determine community spatial stability under resource gradients in a desert steppe. Rangel J 2016. [DOI: 10.1071/rj15094] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The diversity–stability relationship has been addressed and debated for decades, but how this relationship is affected by nutrient availability remains contentious. In the present study we assessed the effects of plant diversity, in terms of species richness, functional group composition and functional trait diversity, on the spatial stability of net primary productivity (NPP) following nitrogen and phosphorus application. In addition, we explored how functional traits at the species level contribute to the spatial stability of NPP. The results support the hypothesis that greater diversity leads to higher spatial stability. This relationship was highly dependent on soil nutrient availability, and increasing species richness or functional trait diversity significantly increased spatial variation of NPP under a high N fertilisation level. The effects of high mineral fertilisation rates may perhaps have masked the effects of plant diversity. Although species richness or functional trait diversity of the original and modified communities from which species with particular functional traits had been removed were significantly different, there were no differences in the coefficients of variation in the NPP of those communities. The lack of difference demonstrated that the relationship between spatial variability and biodiversity depended on the measure of diversity applied and that the functional group composition exerted a stronger effect than other diversity measures. Further analyses revealed that spatial stability of NPP was enhanced with increased diversity in vegetative plant height, rooting depth and the presence of legume, and diminished with diversity in the root system type and life cycle under some fertilisation treatments. The present study demonstrates that the relationship between biodiversity and ecosystem functioning is variable with different diversity, identity and environmental factors. Evaluating the contribution of particular traits to community stability will ultimately help us better understand the mechanisms underlying the diversity–stability relationship.
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Meng C, Zhen-Xian Z, Peng C, Kun W, Gang-Tian Z, Yu-Qi F, Shi-Hai Y, Cheng-Cai H, Zhi-Rong G, Xiao-Dong M, Ning-Wei Z, Chao L. Monodisperse magnetic mesoporous silica microspheres facilitate the studies of gastric cancer-specific peptides in sera. RSC Adv 2016. [DOI: 10.1039/c5ra27378a] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
The prognosis of gastric cancer remains poor despite the recent improvements in therapies.
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Affiliation(s)
- Cao Meng
- Research Center of Endocrine and Metabolic Disease
- Jiangsu Academy of TCM
- Nanjing
- China
| | | | - Cao Peng
- Research Center of Endocrine and Metabolic Disease
- Jiangsu Academy of TCM
- Nanjing
- China
| | - Wang Kun
- Research Center of Endocrine and Metabolic Disease
- Jiangsu Academy of TCM
- Nanjing
- China
| | | | - Feng Yu-Qi
- Department of Chemistry
- Wuhan University
- Wuhan
- China
| | - Yan Shi-Hai
- Department of Pharmacology
- Jiangsu Province Hospital of TCM
- Nanjing
- China
| | - Huang Cheng-Cai
- Biomedical Research Laboratory
- Shimadzu (China) Co., Ltd
- Shanghai
- China
| | - Geng Zhi-Rong
- State Key Laboratory of Coordination Chemistry
- Nanjing University
- Nanjing
- China
| | - Mao Xiao-Dong
- Research Center of Endocrine and Metabolic Disease
- Jiangsu Academy of TCM
- Nanjing
- China
| | - Zhao Ning-Wei
- Department of Pharmacology
- Jiangsu Province Hospital of TCM
- Nanjing
- China
- Biomedical Research Laboratory
| | - Liu Chao
- Research Center of Endocrine and Metabolic Disease
- Jiangsu Academy of TCM
- Nanjing
- China
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Ning L, Guo-Chun Z, Sheng-Li A, Xue-Rui L, Kun W, Jian Z, Chong-Yang R, Ling-Zhu W, Hai-Tong L. Inhibition of autophagy induced by PTEN loss promotes intrinsic breast cancer resistance to trastuzumab therapy. Tumour Biol 2015; 37:5445-54. [DOI: 10.1007/s13277-015-4392-0] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2015] [Accepted: 11/05/2015] [Indexed: 12/19/2022] Open
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Zhihua L, Xucheng Z, Kun W, Xiaobo Z, Jiyong S, Xiaowei H, Holmes M. A novel sensor for determination of dopamine in meat based on ZnO-decorated reduced graphene oxide composites. INNOV FOOD SCI EMERG 2015. [DOI: 10.1016/j.ifset.2015.06.011] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Kun W, Jintian T, Tiangang Z, Xinrong C, Chao Y, Xianwen Z, Zheng W. GW25-e3450 The Possibility of Rapid Assessment of Cardiac Contractility Using Ballistocardiogram. J Am Coll Cardiol 2014. [DOI: 10.1016/j.jacc.2014.06.022] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Tao L, Zhenbing C, Yanhua C, Xiaobin C, Fangxing A, Kun W, Guangxiang H. [Flow-through deep inferior epigastric perforator flaps transplantation for reconstruction of large defects at the extremities]. Zhonghua Zheng Xing Wai Ke Za Zhi 2014; 30:339-343. [PMID: 25522483] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
OBJECTIVE To investigate the clinical application of flow-through deep inferior epigastric perforator flaps for reconstruction of large defects at the extremities. METHODS The deep inferior and superior epigastric arteries were designed as the axial vessel and the arterial supply to the flap was the paraumbilical perforator artery. Free deep inferior epigastric perforator flaps were harvested in flow- through manners to reconstruct associated arterial defect in the wound. The sensation assessment,Enneking score,and questionnaire of the flap aesthetic were all performed during follow-up period. RESULTS From December 2011 to September 2012, 5 patients with large defects at extremities were treated. The deep inferior and superior epigastric arteries were designed as the axial vessel and the arterial supply to the flap was the paraumbilical perforator artery. The wound defects ranged form 11 cm x 5 cm to 30 cm x 11 cm. And the flap size ranged from 13 cm x7 cm to 33 cm x 13 cm. All flaps survived completely. The recipient arteries were all bypassed well documented by color Doppler examinations. All cases had 12-24 months' follow-up period. The flaps had good appearance and high aesthetic satisfactory(100%). 12 months after operations, sensation assessment were all S3+, and the Enneking score ratios were 82%-95% ,with 87.2% in average. CONCLUSIONS Flow-through deep inferior epigastric perforator flaps are reliable and effective for reconstruction of large defects at the extremities with maintenance of the vascular status of the extremities. The flaps can also be designed in transverse or oblique mode for clinical application.
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Bo L, Su-Ling D, Fang L, Lu-Yu Z, Tao A, Stefan D, Kun W, Pei-Feng L. Autophagic program is regulated by miR-325. Cell Death Differ 2014; 21:967-77. [PMID: 24531537 DOI: 10.1038/cdd.2014.18] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2013] [Revised: 12/31/2013] [Accepted: 01/14/2014] [Indexed: 12/31/2022] Open
Abstract
Autophagy is required for the maintenance of cardiomyocytes homeostasis. However, the abnormal autophagy could lead to the development of heart failure. Autophagy is enhanced during myocardial ischemia/reperfusion; it remains to elucidate the molecular regulation of autophagy. We report here that miR-325, ARC and E2F1 constitute an axis that regulates autophagy. Our results showed that miR-325 expression is upregulated upon anoxia/reoxygenation and ischemia/reperfusion. Cardiomyocyte-specific overexpression of the miR-325 potentiates autophagic responses and myocardial infarct sizes, whereas knockdown of miR-325 inhibited autophagy and cell death. We searched for the downstream mediator of miR-325 and identified that ARC is a target of miR-325. ARC transgenic mice could attenuate autophagy and myocardial infarction sizes upon pressure-overload-induced heart failure, whereas ARC null mice exhibited an increased autophagic accumulation in the heart. The suppression of ARC by miR-325 led to its inability to repress autophagic program. In exploring the molecular mechanism by which miR-325 expression is regulated, our results revealed that the transcription factor E2F1 contributed to promote miR-325 expression. E2F1 null mice demonstrated reduced autophagy and myocardial infarction sizes upon ischemia/reperfusion. Our present study reveals a novel autophagic regulating model that is composed of E2F1, miR-325 and ARC. Modulation of their levels may provide a new approach for tackling cardiac failure.
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Affiliation(s)
- L Bo
- Division of Cardiovascular Research, State Key Laboratory of Biomembrane and Membrane Biotechnology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
| | - D Su-Ling
- Division of Cardiovascular Research, State Key Laboratory of Biomembrane and Membrane Biotechnology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
| | - L Fang
- Division of Cardiovascular Research, State Key Laboratory of Biomembrane and Membrane Biotechnology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
| | - Z Lu-Yu
- Division of Cardiovascular Research, State Key Laboratory of Biomembrane and Membrane Biotechnology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
| | - A Tao
- FU WAI Hospital CAMS&PUMC, National Center for Cardiovascular Diseases, Beijing 10037, China
| | - D Stefan
- Franz-Volhard-Clinic, Humboldt University of Berlin, Berlin 13125, Germany
| | - W Kun
- Division of Cardiovascular Research, State Key Laboratory of Biomembrane and Membrane Biotechnology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
| | - L Pei-Feng
- Division of Cardiovascular Research, State Key Laboratory of Biomembrane and Membrane Biotechnology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
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Huang X, Xie HT, Kun W, Huang JH, Sun RY. Three-bottle exponential decay infusion: A novel intravenous infusion strategy for drugs which conform to three-compartment model with observations on propofol kinetics. BANGL J PHARMACOL 2012. [DOI: 10.3329/bjp.v7i4.11908] [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: 11/05/2022] Open
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29
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Geng-Sheng C, Yu G, Kun W, Fang-Rong D, Ning L. Repressive but not activating epigenetic modifications are aberrant on the inactive X chromosome in live cloned cattle. Dev Growth Differ 2011; 51:585-94. [PMID: 21314675 DOI: 10.1111/j.1440-169x.2009.01120.x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
X inactivation is the process of a chromosome-wide silencing of the majority of genes on the X chromosome during early mammalian development. This process may be aberrant in cloned animals. Here we show that repressive modifications, such as methylation of DNA, and the presence of methylated histones, H3K9me2 and H3K27me3, exhibit distinct aberrance on the inactive X chromosome in live clones. In contrast, H3K4me3, an active gene marker, is obviously missing from the inactive X chromosome in all cattle studied. This suggests that the disappearance of active histone modifications (H3K4me3) seems to be more important for X inactivation than deposition of marks associated with heterochromatin (DNA methylation, H3K27me3 and H3K9me2). It also implies that even apparently normal clones may have subtle abnormalities in repressive, but not activating epigenetic modifications on the inactive X when they survive to term. We also found that the histone H3 methylations were enriched and co-localized at q21-31 of the active X chromosome, which may be associated with an abundance of LINE1 repeat elements.
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Affiliation(s)
- Cao Geng-Sheng
- Department of Biochemistry and Molecular Biology, China Agricultural University, Beijing 100193, China.
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Yu S, Wen L, Rong G, Kun W, Lina K. e0429 Patients with type 2 diabetes exhibit impaired mobilisation of endothelial progenitor cells after acute myocardial infarction mediated by VEGF/Akt/eNOS/MMP9 pathway. Heart 2010. [DOI: 10.1136/hrt.2010.208967.429] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Hong Lai L, Jun Wei W, Jin Ying L, Kun W. Response of grasslands conversion to croplands on soil organic carbon in Bashang area of Northern China. ACTA ACUST UNITED AC 2010. [DOI: 10.5897/ajb10.1801] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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Jing-Liang X, Xiang-Yang G, Biao S, Zhi-Chun W, Kun W, Shun-Peng L. Isolation and Characterization of a Carbendazim-Degrading Rhodococcus sp. djl-6. Curr Microbiol 2006; 53:72-6. [PMID: 16775791 DOI: 10.1007/s00284-005-0474-3] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2005] [Accepted: 02/27/2006] [Indexed: 11/24/2022]
Abstract
Bacterium djl-6, capable of degrading carbendazim, was isolated by continuous enrichment culture originating from carbendazim-treated soil. The isolate was identified as Rhodococcus sp. according to its phenotypic features, physiologic and biochemical characteristics, and phylogenetic analysis. The strain could use carbendazim as sole carbon or nitrogen source. It showed a high average degradation rate of 55.56 mg . L(-1) . d(-1) in M9 medium amended with carbendazim. High-pressure liquid chromatography-mass spectrometry (HPLC-MS) analysis showed the presence of 2-aminobenzimidazole, benzimidazole, and an unknown metabolite with molecular ions (M(+)) of m/z 104.8 and 118.5. The degradation in the isolate djl-6 seems to be initiated with the cleavage of the methyl carbemate side chain, resulting in the formation of 2-aminobenzimidazole and benzimidazole. This is the first report of the intermediates benzimidazole and 2-aminobenzimidazole found together in the culture filtrate of pure bacterium.
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Affiliation(s)
- Xu Jing-Liang
- Ministry of Agriculture Key Laboratory of Microbiologic Engineering of Agricultural Environment, Nanjing Agricultural University, Peoples Republic of China
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Li L, Yamataka A, Yian-Xia W, Da-Yong W, Segawa O, Lane GJ, Kun W, Jin-Zhe Z, Miyano T. Ectopic distal location of the papilla of vater in congenital biliary dilatation: Implications for pathogenesis. J Pediatr Surg 2001; 36:1617-22. [PMID: 11685686 DOI: 10.1053/jpsu.2001.27932] [Citation(s) in RCA: 25] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
BACKGROUND/PURPOSE This study investigates the relationship between the location of the papilla of Vater and the length of the common channel in patients with congenital biliary dilatation (CBD). METHODS Cholangiograms from 121 CBD patients and 13 normal controls were the subjects for this study. A length index defined as the length of the common channel divided by the height of the second lumbar vertebra was used for standardization. RESULTS In the controls, the papilla of Vater was located in the middle of the descending or second part of the duodenum in all cases. In 39 (32.2%) of the 121 CBD patients papilla of Vater was located in the descending duodenum (group I), and in 82 (67.8%) it was distal to the descending duodenum (group II). The average length index of the common channel in group II was significantly longer than in group I (1.123 +/- 0.374 v 0.660 +/- 0.246; P <.001). Findings for the common bile duct were similar. CONCLUSIONS There is a significantly higher incidence of ectopic distal location of the papilla of Vater in CBD patients than in controls. The more distal the location of the papilla of Vater, the longer the common bile duct and the common channel.
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Affiliation(s)
- L Li
- Department of Pediatric Surgery, Juntendo University School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo 113-8421, Japan
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Kaneko K, Kun W, Yamataka A, Ohtomo Y, Yamashiro Y, Miyano T. Is nephrectomy for neonatal multicystic dysplastic kidneys still inappropriate? Nephron Clin Pract 2000; 86:376-7. [PMID: 11096311 DOI: 10.1159/000045809] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
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Yixi S, Xin J, Kun W, Chaoshu S, Zhengfu H, Junyan S, Jie D, Sheng Z, Yuanbin C. Vacuum-ultraviolet reflectance spectra and optical properties of nanoscale wurtzite boron nitride. Phys Rev B Condens Matter 1994; 50:18637-18639. [PMID: 9976302 DOI: 10.1103/physrevb.50.18637] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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