1
|
Mao T, Zhao X, Jiang K, Yang J, Xie Q, Fu J, Du B, Lei Z, Gao F. Evaluation of TikTok videos on acute pancreatitis: content quality and reliability analysis. BMC Public Health 2024; 24:1216. [PMID: 38698404 PMCID: PMC11067236 DOI: 10.1186/s12889-024-18708-2] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2023] [Accepted: 04/24/2024] [Indexed: 05/05/2024] Open
Abstract
BACKGROUND Acute pancreatitis (AP) is a common acute digestive system disorder, with patients often turning to TikTok for AP-related information. However, the platform's video quality on AP has not been thoroughly investigated. OBJECTIVE The main purpose of this study is to evaluate the quality of videos about AP on TikTok, and the secondary purpose is to study the related factors of video quality. METHODS This study involved retrieving AP-related videos from TikTok, determining, and analyzing them based on predefined inclusion and exclusion criteria. Relevant data were extracted and compiled for evaluation. Video quality was scored using the DISCERN instrument and the Health on the Net (HONcode) score, complemented by introducing the Acute Pancreatitis Content Score (APCS). Pearson correlation analysis was used to assess the correlation between video quality scores and user engagement metrics such as likes, comments, favorites, retweets, and video duration. RESULTS A total of 111 TikTok videos were included for analysis, and video publishers were composed of physicians (89.18%), news media organizations (13.51%), individual users (5.41%), and medical institutions (0.9%). The majority of videos focused on AP-related educational content (64.87%), followed by physicians' diagnostic and treatment records (15.32%), and personal experiences (19.81%). The mean scores for DISCERN, HONcode, and APCS were 33.05 ± 7.87, 3.09 ± 0.93, and 1.86 ± 1.30, respectively. The highest video scores were those posted by physicians (35.17 ± 7.02 for DISCERN, 3.31 ± 0.56 for HONcode, and 1.94 ± 1.34 for APCS, respectively). According to the APCS, the main contents focused on etiology (n = 55, 49.5%) and clinical presentations (n = 36, 32.4%), followed by treatment (n = 24, 21.6%), severity (n = 20, 18.0%), prevention (n = 19, 17.1%), pathophysiology (n = 17, 15.3%), definitions (n = 13, 11.7%), examinations (n = 10, 9%), and other related content. There was no correlation between the scores of the three evaluation tools and the number of followers, likes, comments, favorites, and retweets of the video. However, DISCERN (r = 0.309) and APCS (r = 0.407) showed a significant positive correlation with video duration, while HONcode showed no correlation with the duration of the video. CONCLUSIONS The general quality of TikTok videos related to AP is poor; however, the content posted by medical professionals shows relatively higher quality, predominantly focusing on clinical presentations and etiologies. There is a discernible correlation between video duration and quality ratings, indicating that a combined approach incorporating the guideline can comprehensively evaluate AP-related content on TikTok.
Collapse
Affiliation(s)
- Tianyang Mao
- Department of Hepatopancreatobiliary Surgery, The People's Hospital of Leshan, No.238, Baita Street, Leshan, 614000, China
- Diagnosis and Treatment Center for Liver, Gallbladder, Pancreas and Spleen System Diseases of Leshan, Leshan, China
- North Sichuan Medical College, Nanchong, China
| | - Xin Zhao
- Department of Hepatopancreatobiliary Surgery, The People's Hospital of Leshan, No.238, Baita Street, Leshan, 614000, China
- Diagnosis and Treatment Center for Liver, Gallbladder, Pancreas and Spleen System Diseases of Leshan, Leshan, China
| | - Kangyi Jiang
- Department of Hepatopancreatobiliary Surgery, The People's Hospital of Leshan, No.238, Baita Street, Leshan, 614000, China
- Diagnosis and Treatment Center for Liver, Gallbladder, Pancreas and Spleen System Diseases of Leshan, Leshan, China
| | - Jie Yang
- Department of Hepatopancreatobiliary Surgery, The People's Hospital of Leshan, No.238, Baita Street, Leshan, 614000, China
- Diagnosis and Treatment Center for Liver, Gallbladder, Pancreas and Spleen System Diseases of Leshan, Leshan, China
| | - Qingyun Xie
- Department of Hepatopancreatobiliary Surgery, The People's Hospital of Leshan, No.238, Baita Street, Leshan, 614000, China
- Diagnosis and Treatment Center for Liver, Gallbladder, Pancreas and Spleen System Diseases of Leshan, Leshan, China
| | - Jinqiang Fu
- Department of Hepatopancreatobiliary Surgery, The People's Hospital of Leshan, No.238, Baita Street, Leshan, 614000, China
- Diagnosis and Treatment Center for Liver, Gallbladder, Pancreas and Spleen System Diseases of Leshan, Leshan, China
| | - Bo Du
- Department of Hepatopancreatobiliary Surgery, The People's Hospital of Leshan, No.238, Baita Street, Leshan, 614000, China
- Diagnosis and Treatment Center for Liver, Gallbladder, Pancreas and Spleen System Diseases of Leshan, Leshan, China
| | - Zehua Lei
- Department of Hepatopancreatobiliary Surgery, The People's Hospital of Leshan, No.238, Baita Street, Leshan, 614000, China.
- Diagnosis and Treatment Center for Liver, Gallbladder, Pancreas and Spleen System Diseases of Leshan, Leshan, China.
| | - Fengwei Gao
- Department of Hepatopancreatobiliary Surgery, The People's Hospital of Leshan, No.238, Baita Street, Leshan, 614000, China.
- Diagnosis and Treatment Center for Liver, Gallbladder, Pancreas and Spleen System Diseases of Leshan, Leshan, China.
- Liver Transplantation Center, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Chengdu, China.
| |
Collapse
|
2
|
Zhao X, Gao F, Lei Z. A commentary on 'Comparison of survival benefit and safety between surgery following conversion therapy versus surgery alone in patients with surgically resectable hepatocellular carcinoma at CNLC IIb/IIIa stage: a propensity score matching study'. Int J Surg 2024:01279778-990000000-01137. [PMID: 38446863 DOI: 10.1097/js9.0000000000001299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2024] [Accepted: 02/22/2024] [Indexed: 03/08/2024]
Affiliation(s)
- Xin Zhao
- Department of Hepato-Pancreato-biliary Surgery,People's Hospital of Leshan, Leshan, 614000, China
| | - Fengwei Gao
- Liver Transplantation Center, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Chengdu, 610041, China
| | - Zehua Lei
- Department of Hepato-Pancreato-biliary Surgery,People's Hospital of Leshan, Leshan, 614000, China
| |
Collapse
|
3
|
Yang J, Xie Q, Chen B, Wang J, Wang L, Luo C, Zhang Y, Xiong H, Xiang Q, Lei Z, Zeng G. Screening for negative emotions and analysis of related factors among general surgery inpatients: a retrospective cross-sectional study. Front Psychol 2024; 15:1343164. [PMID: 38379622 PMCID: PMC10876801 DOI: 10.3389/fpsyg.2024.1343164] [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: 12/11/2023] [Accepted: 01/26/2024] [Indexed: 02/22/2024] Open
Abstract
Background Adverse psychological states in surgical patients can impact outcomes. This study aimed to evaluate mood disorders and associated factors in general surgery inpatients using the Huaxi Emotional Distress Index (HEI). Methods This retrospective cross-sectional study analyzed HEI scores of 20,398 adult patients hospitalized for elective surgery at a tertiary hospital in China (2018-2021). Univariable and multivariable logistic regression identified factors linked to moderate/severe mood disturbances. Results Factors linked to moderate/severe mood disturbances were identified through univariable and multivariable logistic regression. The results showed that 3.7% of the patients had HEI ≥ 13, indicating significant emotional issues. The mean age was 52.67 (16.14) years in the group with no/mild distress and 59.65 (16.34) years in the group with moderate/severe distress. Among all the cases included, there were 2,689 cases (13.18%) of gastric and esophageal diseases, 1,437 cases (7.04%) of hepatic diseases, 913 cases (4.47%) of periampullary and pancreatic tumors, 9,150 cases (44.85%) of gallbladder diseases, 2,777 cases (13.61%) of colorectal diseases, and 3,432 cases (16.83%) of other diseases. The male percentage was 45.5 and 54.9% in the two groups, respectively. Older age, male gender, unstable occupations, lower education, and unmarried status were associated with higher risks of mood disturbances (all p < 0.05). A significant downward trend in adverse emotions was observed with increasing education levels (p < 0.001). Furthermore, the study found that the inpatients had higher HEI scores prior to the COVID-19 pandemic compared to during the pandemic (p < 0.001). However, the occurrence of adverse mood states in these patients was not exacerbated by the COVID-19 pandemic. The trend test remained highly significant in the none-adjusted, age-sex adjusted, and fully adjusted models (all p for trend <0.001). Conclusion The implementation of routine screening in higher education institutions (HEIs) allows for the early identification of surgical inpatients who require psychological intervention. It is recommended that counseling services focus on individuals with lower levels of education and income instability in order to address negative mood states. Furthermore, the potential application of this screening system in other clinical settings could enable earlier psychological interventions for a larger number of patients.
Collapse
Affiliation(s)
| | | | | | | | | | | | | | | | | | - Zehua Lei
- Department of Hepato-Pancreato-Biliary Surgery, The People’s Hospital of Leshan, Leshan, China
| | | |
Collapse
|
4
|
Fang M, Lei Z, Ruilin M, Jing W, Leqiang D. High temperature stress induced oxidative stress, gut inflammation and disordered metabolome and microbiome in tsinling lenok trout. Ecotoxicol Environ Saf 2023; 266:115607. [PMID: 37862746 DOI: 10.1016/j.ecoenv.2023.115607] [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: 06/05/2023] [Revised: 10/09/2023] [Accepted: 10/14/2023] [Indexed: 10/22/2023]
Abstract
Tsinling lenok trout (Brachymystax lenok tsinlingensis Li) is a species of cold-water salmon that faces serious challenges due to global warming. High temperature stress has been found to damage the gut integrity of cold-water fish, impacting their growth and immunity. However, limited research exists on the causal relationship between gut microbial disturbance and metabolic dysfunction in cold-water fish induced by high temperature stress. To address this gap, we conducted a study to investigate the effects of high temperature stress (24 °C) on the gut tissue structure, antioxidant capacity, gut microorganisms, and metabolome reactions of tsinling lenok trout. Our analysis using 16 S rDNA gene sequencing revealed significant changes in the gut microbial composition and metabolic profile. Specifically, the abundance of Firmicutes and Gemmatimonadetes decreased significantly with increasing temperature, while the abundance of Bacteroidetes increased significantly. Metabolic analysis revealed a significant decrease in the abundance of glutathione, which is synthesized from glutamate and glycine, under high temperature stress. Additionally, there was a notable reduction in the levels of adenosine, inosine, xanthine, guanosine, and deoxyguanosine, which are essential for DNA/RNA synthesis. Conversely, there was a significant increase in the abundance of D-glucose 6 P. Furthermore, high temperature stress adversely affects intestinal structure and barrier function. Our findings provide valuable insights into the mechanism of high temperature stress in cold-water fish and serve as a foundation for future research aimed at mitigating the decline in production performance caused by such stress.
Collapse
Affiliation(s)
- M Fang
- Key Laboratory of Resource Utilization of Agricultural Solid Waste in Gansu Province, Tianshui Normal University, South Xihe Road, Qinzhou, Tianshui 741000, Gansu, PR China.
| | - Z Lei
- Key Laboratory of Resource Utilization of Agricultural Solid Waste in Gansu Province, Tianshui Normal University, South Xihe Road, Qinzhou, Tianshui 741000, Gansu, PR China
| | - M Ruilin
- Key Laboratory of Resource Utilization of Agricultural Solid Waste in Gansu Province, Tianshui Normal University, South Xihe Road, Qinzhou, Tianshui 741000, Gansu, PR China
| | - W Jing
- Key Laboratory of Resource Utilization of Agricultural Solid Waste in Gansu Province, Tianshui Normal University, South Xihe Road, Qinzhou, Tianshui 741000, Gansu, PR China
| | - D Leqiang
- Key Laboratory of Resource Utilization of Agricultural Solid Waste in Gansu Province, Tianshui Normal University, South Xihe Road, Qinzhou, Tianshui 741000, Gansu, PR China
| |
Collapse
|
5
|
Yang H, Wu Y, Sui J, Wang N, Lei Z, He J. Single Cell Analysis of Macrophage Heterogeneity and NK-Cell Exhaustion in Lewis Lung Cancer Xenograft Tumor. Int J Radiat Oncol Biol Phys 2023; 117:e271. [PMID: 37785026 DOI: 10.1016/j.ijrobp.2023.06.1238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) Stereotactic body radiation therapy (SBRT) has attracted much attention because of its ability to stimulate anti-tumor immune response. However, the mechanism of SBRT reprogramming the tumor microenvironment remains to be elucidated. MATERIALS/METHODS Using Lewis lung carcinoma (LLC) xenograft mice model treated with SBRT (8Gy x 3F), multiplex assay was performed to measure serum chemokine levels, and single-cell RNA sequencing was performed to assess tumor microenvironment. The differential expression genes of each cell subcluster were identified by the "Find-All markers" function with default parameters provided by Seurat. Intercellular communication analysis was explored by using CellPhone DB package. RESULTS The majority of serum chemokines involved macrophage recruitment, including CCL3, CCL4, CCL8, and CCL20, were highly secreted at 7 days after SBRT. Single-cell RNA sequencing of 108,741 cells were contained from 6 mouse Lewis lung carcinoma samples (n = 3 tumors for SBRT, n = 3 tumors pooled for SHAM). Besides Lewis cancer cells, myeloid cells were 57.61% ,70.82% in Sham-irradiation (SHAM) and SBRT while NT and T cells were 20.50%, 7.81% in SHAM and SBRT, respectively. When compared with SHAM group, upregulation of Ccl3, Ccl4, Ccl8 chemokine genes were observed in cancer cells of SBRT group. Differential expression genes analysis showed high expression level of Ccl8 (Log2FC 2.54, p<0.01) in cluster of Mrc1+macrophage. The SBRT group consisted of more Ccl8+Mrc1+macrophages (proportion 36.28% for SBRT, 27.44% for SHAM) and exhausted NK cells (proportion 22.56% for SBRT, 13.70% for SHAM). More importantly, intercellular communication analysis revealed a potential communication network between Ccl8+Mrc1+macrophages and exhausted NK cells. CONCLUSION Our results provide a potential therapeutic strategy by disrupting Ccl8+ Mrc1+macrophages and NK-cell interaction to facilitate the stimulation of the anti-tumor immune response by SBRT.
Collapse
Affiliation(s)
- H Yang
- College of Bioengineering, Chongqing University, Chongqing, China, Chongqing, China
| | - Y Wu
- Oncology Radiotherapy Center of Chongqing University Cancer Hospital, Chongqing, China
| | - J Sui
- College of Medicine, Chongqing University, Chongqing, China
| | - N Wang
- Chongqing university, Chongqing, China
| | - Z Lei
- College of Medicine, Chongqing University, Chongqing, China, Chongqing, China
| | - J He
- College of Bioengineering, Chongqing University, Chongqing, China, Chongqing, China
| |
Collapse
|
6
|
Xue FM, Liu C, Lei Z, An C. [A case of haploinsufficiency of A20 caused by new variation of TNFAIP3 gene]. Zhonghua Er Ke Za Zhi 2023; 61:740-742. [PMID: 37528019 DOI: 10.3760/cma.j.cn112140-20230202-00072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 08/03/2023]
Affiliation(s)
- F M Xue
- Department of Gastroenterology, Children's Hospital Affiliated to Zhengzhou University,Zhenzhou 450018, China
| | - C Liu
- Department of Gastroenterology, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Z Lei
- Henan Key Laboratory of Children's Genetics and Metabolic Diseases, Children's Hospital Affiliated to Zhengzhou University,Zhenzhou 450018, China
| | - C An
- Department of Clinical Laboratory, the Second Affiliated Hospital of Zhengzhou University, Zhengzhou 450000, China
| |
Collapse
|
7
|
Yao YL, He SK, Lei Z, Ye T, Xie Y, Deng ZG, Cui B, Qi W, Yang L, Zhu SP, He XT, Zhou WM, Qiao B. High-Flux Neutron Generator Based on Laser-Driven Collisionless Shock Acceleration. Phys Rev Lett 2023; 131:025101. [PMID: 37505952 DOI: 10.1103/physrevlett.131.025101] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2022] [Revised: 10/20/2022] [Accepted: 05/24/2023] [Indexed: 07/30/2023]
Abstract
A novel compact high-flux neutron generator with a pitcher-catcher configuration based on laser-driven collisionless shock acceleration (CSA) is proposed and experimentally verified. Different from those that previously relied on target normal sheath acceleration (TNSA), CSA in nature favors not only acceleration of deuterons (instead of hydrogen contaminants) but also increasing of the number of deuterons in the high-energy range, therefore having great advantages for production of high-flux neutron source. The proof-of-principle experiment has observed a typical CSA plateau feature from 2 to 6 MeV in deuteron energy spectrum and measured a forward neutron flux with yield 6.6×10^{7} n/sr from the LiF catcher target, an order of magnitude higher than the compared TNSA case, where the laser intensity is 10^{19} W/cm^{2}. Self-consistent simulations have reproduced the experimental results and predicted that a high-flux forward neutron source with yield up to 5×10^{10} n/sr can be obtained when laser intensity increases to 10^{21} W/cm^{2} under the same laser energy.
Collapse
Affiliation(s)
- Y L Yao
- Center for Applied Physics and Technology, HEDPS and State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, China
| | - S K He
- Science and Technology on Plasma Physics Laboratory, Research Center of Laser Fusion, China Academy of Engineering Physics (CAEP), Mianyang 621900, China
| | - Z Lei
- Center for Applied Physics and Technology, HEDPS and State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, China
| | - T Ye
- Institute of Applied Physics and Computational Mathematics, Beijing 100094, China
| | - Y Xie
- Center for Applied Physics and Technology, HEDPS and State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, China
| | - Z G Deng
- Science and Technology on Plasma Physics Laboratory, Research Center of Laser Fusion, China Academy of Engineering Physics (CAEP), Mianyang 621900, China
| | - B Cui
- Science and Technology on Plasma Physics Laboratory, Research Center of Laser Fusion, China Academy of Engineering Physics (CAEP), Mianyang 621900, China
| | - W Qi
- Science and Technology on Plasma Physics Laboratory, Research Center of Laser Fusion, China Academy of Engineering Physics (CAEP), Mianyang 621900, China
| | - L Yang
- Science and Technology on Plasma Physics Laboratory, Research Center of Laser Fusion, China Academy of Engineering Physics (CAEP), Mianyang 621900, China
| | - S P Zhu
- Institute of Applied Physics and Computational Mathematics, Beijing 100094, China
| | - X T He
- Institute of Applied Physics and Computational Mathematics, Beijing 100094, China
| | - W M Zhou
- Science and Technology on Plasma Physics Laboratory, Research Center of Laser Fusion, China Academy of Engineering Physics (CAEP), Mianyang 621900, China
| | - B Qiao
- Center for Applied Physics and Technology, HEDPS and State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, China
- Frontiers Science Center for Nano-optoelectronic, Peking University, Beijing 100094, China
| |
Collapse
|
8
|
Lu H, Xie Q, Ye W, Zhou Z, Lei Z. Ultrasound-guided erector spinae plane block for postoperative analgesia in Chinese patients undergoing laparoscopic cholecystectomy: a double-blind randomized controlled trial. Langenbecks Arch Surg 2023; 408:111. [PMID: 36854802 DOI: 10.1007/s00423-023-02834-3] [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: 03/08/2022] [Accepted: 02/10/2023] [Indexed: 03/02/2023]
Abstract
PURPOSE Pain management after laparoscopic cholecystectomy (LC) is a main concern for Chinese clinicians. This study aims to explore the effect of erector spinae plane block (ESPB) on the postoperative analgesia of patients undergoing LC in China. METHODS In this randomized controlled trial (RCT), 220 patients were randomized into the ESPB group and control group. Patients in the ESPB group received a bilateral ESPB, and patients in the control group were injected saline. Lornoxicam (0.08 mg/mL, 100 mL) was used as routine analgesia for both groups after the surgery. Visual analog scale (VAS) score at rest state at 12 h postoperative was the primary outcome and divided into no pain, mild pain, moderate pain, and severe pain. RESULTS Finally, 197 patients were included for analysis. At postoperative 12 h, ESPB group observed less patients with moderate pain (0% vs. 8.91%) and severe pain (0% vs. 0.99%) than the control group (P < 0.001). Moreover, ESPB group found less dose of additional sufentanil (5.55 ± 1.37 μg vs. 10.67 ± 5.05 μg), less requirement for rescue analgesia (13.54% vs. 31.68%), earlier first time to leave bed (10 h vs. 18 h), and earlier first exhaust time (17.5 h vs. 25 h), less adverse reactions (5.21% vs. 17.82%), and higher satisfaction degree (78.13% vs. 31.68%) (all P < 0.05). CONCLUSIONS ESPB was followed by better postoperative analgesia and less opioid consumption.
Collapse
Affiliation(s)
- Heng Lu
- Department of Anesthesiology, People's Hospital of Leshan, Leshan, 614000, People's Republic of China
| | - Qingyun Xie
- Department of Hepatopancreatobiliary Surgery, People's Hospital of Leshan, Leshan, 614000, People's Republic of China
| | - Wei Ye
- Department of Anesthesiology, People's Hospital of Leshan, Leshan, 614000, People's Republic of China
| | - Zhaohua Zhou
- Department of Anesthesiology, People's Hospital of Leshan, Leshan, 614000, People's Republic of China
| | - Zehua Lei
- Department of Hepatopancreatobiliary Surgery, People's Hospital of Leshan, Leshan, 614000, People's Republic of China.
| |
Collapse
|
9
|
Zhao X, Gao F, Yang J, Fan H, Xie Q, Jiang K, Gong J, Gao B, Yang Q, Lei Z. Risk of Adverse Events in Cancer Patients Receiving Nivolumab With Ipilimumab: A Meta-Analysis. Front Oncol 2022; 12:877434. [PMID: 35814436 PMCID: PMC9260026 DOI: 10.3389/fonc.2022.877434] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Accepted: 05/25/2022] [Indexed: 12/30/2022] Open
Abstract
Background Combining two immune checkpoint inhibitors (ICIs) instead of using one can effectively improve the prognosis of advanced malignant tumors. At present, ipilimumab alongside nivolumab is the most widely used combinatorial regimen of ICIs. However, the risk of treatment-related adverse events is higher in combinatorial regimens than in single-drug regimens. Thus, this study aimed to evaluate the risks of common adverse events associated with the combinatorial regimen of ipilimumab and nivolumab by using meta-analysis. Methods We searched Pubmed, Medline, EMBASE, and Cochrane Library for reports published by 30 September 2021. A randomized controlled study was developed and analyzed using the statistical software R to determine the efficacy of the combinatorial treatment. Risk estimates (hazard ratios, RR) and 95% confidence intervals for various common serious adverse events were used. Results A total of 23 randomized control trials (n = 3970 patients) were included. Our meta-analysis indicated the risks of adverse events of any grade and grade ≥ 3 as 90.42% (95%CI: 85.91% ~ 94.18%) and 46.46% (95%CI: 39.37% ~ 53.69%), respectively; the risks of treatment-related death and adverse events leading to discontinuation were estimated at 0.42% (95% CI, 0.18% ~ 0.72%) and 19.11% (95% CI, 14.99% ~ 24.38%), respectively. Classification of 19 common adverse events. The top 5 grade 1-2 adverse events were found to be fatigue (30.92%, 95% CI: 24.59% ~ 37.62%), pruritus (26.05%, 95%CI: 22.29%~29.99%), diarrhea (23.58%, 95% CI: 20.62% ~ 26.96%), rash (19.90%, 95%CI: 15.75% ~ 25.15%), and nausea (17.19%, 95% CI:13.7% ~ 21.57%). The top 5 grade ≥ 3 adverse events were identified as increased alanine aminotransferase(8.12%, 95% CI: 5.90%~10.65%), increased lipase(7.62%, 95% CI: 4.88% ~ 10.89%), and colitis (6.39%, 95%CI: 3.98% ~ 10.25%), increased aspartate aminotransferase (6.30%, 95% CI: 4.61% ~ 8.22%), and diarrhea(5.72%, 95%CI: 3.50% ~ 8.44%). Subgroup analysis revealed some differences in the adverse events between the N1-I3 and N3-I1 subgroups and between subgroups of different cancer types. Conclusion This study summarized the risks of common adverse events in the co-treatment of malignant-tumor patients with ipilimumab and nivolumab and identified the impacts of various initial administration schemes on the risks of such events, thereby providing an important reference for the toxicity of co-treatment with ipilimumab and nivolumab. Systematic Review Registration https://www.crd.york.ac.uk/prospero/, identifier: CRD42020181350.
Collapse
Affiliation(s)
- Xin Zhao
- Department of Hepatobiliary Surgery, The People’s Hospital of Leshan, Leshan, China
| | - Fengwei Gao
- Department of Hepatobiliary Surgery, The People’s Hospital of Leshan, Leshan, China
| | - Jie Yang
- Department of Hepatobiliary Surgery, The People’s Hospital of Leshan, Leshan, China
| | - Hua Fan
- Department of Medical Oncology, The People’s Hospital of Leshan, Leshan, China
| | - Qingyun Xie
- Department of Hepatobiliary Surgery, The People’s Hospital of Leshan, Leshan, China
| | - Kangyi Jiang
- Department of Hepatobiliary Surgery, The People’s Hospital of Leshan, Leshan, China
| | - Jie Gong
- Department of Hepatobiliary Surgery, The People’s Hospital of Leshan, Leshan, China
| | - Benjian Gao
- Department of Hepatobiliary Surgery, The People’s Hospital of Leshan, Leshan, China
| | - Qian Yang
- Department of Medical Oncology, The People’s Hospital of Leshan, Leshan, China
| | - Zehua Lei
- Department of Hepatobiliary Surgery, The People’s Hospital of Leshan, Leshan, China
- *Correspondence: Zehua Lei,
| |
Collapse
|
10
|
Chirico N, Kessler EL, Maas RGC, Fang J, Qin J, Dokter I, Ciccone S, Saric T, Buikema JW, Lei Z, Doevendans P, Sluijter JPG, Van Mil A. Small molecule-mediated rapid maturation of human induced pluripotent stem cell derived cardiomyocytes. Cardiovasc Res 2022. [DOI: 10.1093/cvr/cvac066.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: Other. Main funding source(s): Gravitation Program “Materials Driven Regeneration” by the Netherlands Organization for Scientific Research (RegmedXB #024.003.013) and the Marie Skłodowska-Curie Actions (Grant agreement RESCUE #801540). The EU-funded project BRAV3 (H2020, ID:874827)
Background
Human-induced pluripotent stem cell (iPSC)-derived cardiomyocytes (iPSC-CMs) do not display all hallmarks of mature human primary cardiomyocytes: the ability to use fatty acids as an energy source, high mitochondrial mass, increased nuclei polyploidism, synchronized electrical conduction, and forceful contractions. Instead, their phenotype is similar to immature cardiomyocytes in the late fetal stage. This immaturity represents a bottleneck to their application in 1) disease modeling – as most cardiac (genetic) diseases have a middle-age onset – and 2) clinical use, where integration and functional coupling are key. So far, the mainly used methods to enhance iPSC-CM maturation include prolonged time-in-culture, 3D culture, cyclic mechanical stretch, and electrical stimulation with specialized media. However, these protocols are laborious, costly, and not easily scalable.
Methods
In this study, we developed a simple, low cost, and rapid protocol using two peroxisome proliferator-activated receptor gamma coactivator 1-alpha (PPARGC1A/PGC-1α) activating small molecules: Asiatic Acid (AA) and GW501516 (GW) to promote cardiomyocyte maturity by inducing a metabolic switch to fatty acid utilization and increased mitochondrial biogenesis.
Results
Monolayers of iPSC-CMs were incubated with AA and GW every other day for 10 days resulting in increased expression of fatty acid-metabolism-related genes (5 and 10-fold increase in CPT1B gene expression, respectively), mitochondria biogenesis (protein expression of ATP5A) and fusion (50 and 100-fold increase in OPA1 gene expression, respectively). In addition, AA treated iPSC-CMs responded in the seahorse mitochondria stress test more rapidly to an artificial increase in mitochondrial activity and showed a higher flexibility in substrate utilization in the seahorse stress test. A more mature electrophysiological functionality was shown by increased ion channel gene expression (KCNA4, SCN5A, GJA1, CACNA1C, and SCN1B) and enhanced synchronous contraction in treated samples. Moreover, maturation was further shown by increased sarcomeric gene expression (5 and 7-fold increase in TNNI3 in AA and GW respectively) and nuclear polyploidism (>4N fold 2.16 and 1.48-fold increase in AA and GW respectively).
Conclusions
Collectively, these findings show that AA and GW trigger a metabolic switch and induce extensive maturation of iPSC-CMs, providing a rapid and cost-effective method to obtain iPSC-CMs that more closely resemble their adult counterparts.
Collapse
Affiliation(s)
- N Chirico
- University Medical Center Utrecht , Utrecht , Netherlands (The)
| | - E L Kessler
- University Medical Center Utrecht , Utrecht , Netherlands (The)
| | - RGC Maas
- University Medical Center Utrecht , Utrecht , Netherlands (The)
| | - J Fang
- University Medical Center Utrecht , Utrecht , Netherlands (The)
| | - J Qin
- University Medical Center Utrecht , Utrecht , Netherlands (The)
| | - I Dokter
- University Medical Center Utrecht , Utrecht , Netherlands (The)
| | - S Ciccone
- University Medical Center Utrecht , Utrecht , Netherlands (The)
| | - T Saric
- University of Cologne, Center for Physiology and Pathophysiology, Institute for Neurophysiology , Cologne , Germany
| | - JW Buikema
- University Medical Center Utrecht , Utrecht , Netherlands (The)
| | - Z Lei
- University Medical Center Utrecht , Utrecht , Netherlands (The)
| | - P Doevendans
- University Medical Center Utrecht , Utrecht , Netherlands (The)
| | - JPG Sluijter
- University Medical Center Utrecht , Utrecht , Netherlands (The)
| | - A Van Mil
- University Medical Center Utrecht , Utrecht , Netherlands (The)
| |
Collapse
|
11
|
Fang J, Van Der Geest JSA, Yao B, Yang Q, Chirico N, Brans MA, Roefs MT, Vader P, De Jager SCA, De Bruin A, Vink A, Van Mil A, Schiffelers RM, Lei Z, Sluijter JPG. E2F7/8 is involved in cardiomyocyte polyploidy but does not affect myocardial reperfusion injury recovery. Cardiovasc Res 2022. [DOI: 10.1093/cvr/cvac066.061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: Other. Main funding source(s): CSC fellowship
Background
Polyploidy cells consist of more than two complete sets of homologous chromosomes. Although a characteristic feature of cardiomyocytes and observed in all mammalian species, its molecular mechanism and biological functions are still unknown. Cardiomyocytes polyploidy in rodents occurs mainly through incomplete cytokinesis and increases with age. Studies have demonstrated that E2F7/8 transcription factors are key regulators of polyploidy in the liver and pancreas, however, it remains unclear if E2F7/8 control the generation of polyploidy cardiomyocytes and what the functional consequence is post-myocardial infarction (MI).
Methods
By using a tamoxifen inducible Cre/LoxP approach in new-born mice, we deleted E2F7/8 transcription factors ubiquitously and evaluated the biological significance of postnatal E2F7/8 loss. Mice underwent myocardial ischemia reperfusion injury (IRI) and heart function was assessed by 4D-echocardiography. Cardiomyocyte nucleus polyploidy was measured by FACS and microscope.
Results
Deficiency of E2F7/8 significantly suppress cardiomyocyte mononucleated and multinucleated polyploidy, as well as dramatically decreased hepatocytes polyploidy. E2F7/8 defect also led to a decrease in cardiac stress related marker lever such as ANP, BNP, MMP2, β-MHC/α-MHC and an increase in CD31 expression level. Surprisingly, E2F7/8 deletion did not have impact on cardiac function and dimensions post-IRI.
Conclusion
In summary, we identified that E2F7/8 activity is involved in the cellular polyploidy in the heart but did not affect myocardial function after myocardial injury.
Collapse
Affiliation(s)
- J Fang
- University Medical Center Utrecht, Experimental Cardiology , Utrecht , Netherlands (The)
| | - JSA Van Der Geest
- University Medical Center Utrecht, Experimental Cardiology , Utrecht , Netherlands (The)
| | - B Yao
- University Medical Center Utrecht, Experimental Cardiology , Utrecht , Netherlands (The)
| | - Q Yang
- University Medical Center Utrecht, CDL Research , Utrecht , Netherlands (The)
| | - N Chirico
- University Medical Center Utrecht, Experimental Cardiology , Utrecht , Netherlands (The)
| | - MA Brans
- University Medical Center Utrecht, Experimental Cardiology , Utrecht , Netherlands (The)
| | - MT Roefs
- University Medical Center Utrecht, Experimental Cardiology , Utrecht , Netherlands (The)
| | - P Vader
- University Medical Center Utrecht, Experimental Cardiology and CDL Research , Utrecht , Netherlands (The)
| | - SCA De Jager
- University Medical Center Utrecht, Experimental Cardiology , Utrecht , Netherlands (The)
| | - A De Bruin
- University of Groningen, Department of Pediatrics , Groningen , Netherlands (The)
| | - A Vink
- University Medical Center Utrecht, Department of Pathology , Utrecht , Netherlands (The)
| | - A Van Mil
- University Medical Center Utrecht, Experimental Cardiology , Utrecht , Netherlands (The)
| | - RM Schiffelers
- University Medical Center Utrecht, CDL Research , Utrecht , Netherlands (The)
| | - Z Lei
- University Medical Center Utrecht, Experimental Cardiology and CDL Research , Utrecht , Netherlands (The)
| | - JPG Sluijter
- University Medical Center Utrecht, Experimental Cardiology , Utrecht , Netherlands (The)
| |
Collapse
|
12
|
Van Der Geest JSA, Lei Z, Doevendans PAFM, Sluijter JPG. Myocardial tissue slices for modeling of the human PLN p.Arg14del associated cardiomyopathy. Cardiovasc Res 2022. [DOI: 10.1093/cvr/cvac066.131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: Public grant(s) – National budget only. Main funding source(s): NWO - The Dutch Research Council
Background
Current in vivo preclinical models lack the predictability of the clinical efficacy resulting in a high dropout rate of therapeutic candidates. Advanced human-based models are required to bridge this gap and indicate the potential of novel therapeutic approaches[1]. Myocardial tissue slices are an in vitro model that recapitulates the native multicellular architecture of the heart. This allows for modeling cellular processes in a macroscopic context entailing great promise. The most common cardiomyopathy-related mutation in the Netherlands is the loss of arginine at position 14 (p.Arg14del) in the phospholamban protein (PLN). PLN is a critical regulator of calcium cycling and contractility in the heart. The p.Arg14del mutation results in a super inhibition of SERCA2a and thus aberrant calcium handling and reduced contractile force. Mice models harbouring the PLN p.Arg14del do not completely recapitulate the human manifestation mainly due to the difference between species; heart rate, Calcium-cycling and ion properties, and different myosin heavy chain isoforms, showing the unmet need for a human-based model[2,3].
Methods & Results
300 µm thick viable myocardial tissue were sectioned from a PLN p.Arg14del patient’s left ventricle. Although the myocardial tissue slices were kept alive for eight days in static culture, these conditions initiated cell death and dedifferentiation. The tissue slices show the greatest resemblance to the intact architecture of the in vivo human heart, it is the most relevant model for viral transduction in the human heart, and proof-of-principle of this is performed. Myocardial tissue slices of a PLN p.Arg14del patient retain the structural phenotype shown by the fibrofatty deposition. Similarly, functional patient characteristics, aberrant calcium handling, and reduced contractile force are preserved.
Conclusion
Myocardial tissue slices recapitulate the (patho)physiology of the heart, as shown here with the PLN p.Arg14del case. However, the static culture conditions induce remodeling of the heart and thus only allow for acute measures in the native heart. To prolong the period that the slices recapitulate the native heart, culture conditions should mimic the environment of the heart. The tissue slices allow for a currently unmet need to modulate the complex architecture of the human heart with e.g. novel delivery tools or therapeutic interventions. All in all, myocardial tissue slices are a promising model that can give novel insights into the physiology of the human heart, and therapeutic intervention on induced or genetic cardiomyopathies.
Collapse
Affiliation(s)
- JSA Van Der Geest
- University Medical Center Utrecht, Experimental Cardiology , Utrecht , Netherlands (The)
| | - Z Lei
- University Medical Center Utrecht, CDL Research , Utrecht , Netherlands (The)
| | - PAFM Doevendans
- University Medical Center Utrecht, Experimental Cardiology , Utrecht , Netherlands (The)
| | - JPG Sluijter
- University Medical Center Utrecht, Experimental Cardiology , Utrecht , Netherlands (The)
| |
Collapse
|
13
|
Xia K, Wang F, Lai X, Luo P, Chen H, Ma Y, Huang W, Ou W, Li Y, Feng X, Lei Z, Tu X, Ke Q, Mao F, Deng C, Xiang A. Gene Editing/Gene Therapies: AAV-MEDIATED GENE THERAPY PRODUCES FERTILE OFFSPRING IN THE LHCGR-DEFICIENT MOUSE MODEL OF LEYDIG CELL FAILURE. Cytotherapy 2022. [DOI: 10.1016/s1465-3249(22)00156-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
14
|
Yan W, Feng Y, Lei Z, Kuang W, Long C. MicroRNA-214-3p Ameliorates LPS-Induced Cardiomyocyte Injury by Inhibiting Cathepsin B. Folia Biol (Praha) 2022; 68:78-85. [PMID: 36384265] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Myocardial injury is a common complication of sepsis. MicroRNA (miRNA) miR-214-3p is protective against myocardial injury caused by sepsis, but its mechanism in lipopolysaccharide (LPS)- induced cardiomyocyte injury is still unclear. An AC16 cell injury model was induced by LPS treatment. Cell Counting Kit-8 and flow cytometry assay showed decreased cell viability and increased apoptosis in LPS-treated AC16 cells. The levels of caspase- 3, Bax, atrial natriuretic peptide (ANP), brain natriuretic peptide (BNP), myosin 6 (Myh6), myosin 7 (Myh7), reactive oxygen species (ROS), and malondialdehyde (MDA) were increased in LPS-treated AC16 cells, but the levels of Bcl-2 and superoxide dismutase (SOD) were decreased. MiR-214-3p was down-regulated and cathepsin B (CTSB) was upregulated in LPS-treated AC16 cells. At the same time, miR-214-3p could target CTSB and reduce its expression. We also found that a miR-214-3p mimic or CTSB silencing could significantly reduce LPSinduced apoptosis, decrease ROS, MDA, caspase-3, and Bax and increase SOD and Bcl-2. CTSB silencing could significantly reduce ANP, BNP, Myh6, and Myh7 in LPS-treated AC16 cells. The effects of CTSB silencing were reversed by a miR-214-3p inhibitor. In summary, miR-214-3p could inhibit LPSinduced myocardial injury by targeting CTSB, which provides a new idea for myocardial damage caused by sepsis.
Collapse
Affiliation(s)
- W Yan
- The First Affiliated Hospital, Department of Cardiovascular Surgery, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China
| | - Y Feng
- The First Affiliated Hospital, Department of Cardiovascular Surgery, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China
| | - Z Lei
- The First Affiliated Hospital, Department of Cardiovascular Surgery, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China
| | - W Kuang
- The First Affiliated Hospital, Department of Cardiovascular Surgery, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China
| | - C Long
- The First Affiliated Hospital, Department of Cardiovascular Surgery, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China
| |
Collapse
|
15
|
Zhao X, Lei Z, Gao F, Yang J, Xie Q, Jiang K, Jie G. Minimally invasive versus open living donors right hepatectomy: A systematic review and meta-analysis. Int J Surg 2021; 95:106152. [PMID: 34688930 DOI: 10.1016/j.ijsu.2021.106152] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [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: 06/20/2021] [Revised: 09/10/2021] [Accepted: 10/19/2021] [Indexed: 02/06/2023]
Abstract
BACKGROUND Although minimally invasive technology has been widely used in hepatectomy, it remains controversial with regards to liver transplantation, especially in donors right hepatectomy. Herein, we compared the short-term safety and efficacy of minimally invasive donors right hepatectomy (MIDRH) with open donors right hepatectomy (ODRH). METHODS A systematic literature search was carried out using PubMed, Embase, Web of Science and the Cochrane Library database in order to identify comparison studies of MIDRH and ODRH. Next, we obtained the relevant data, and carried out the meta-analysis. RESULTS This meta-analysis included 12 studies, which included 1755 cases that underwent donors right hepatectomy. Compared to ODRH, patients that underwent MIDRH had less bleeding (SWD = -0.52, p<0.001), shorter hospital stays (SWD = -0.58, p < 0.001) and lower overall postoperative complications of donors (RR = 0.74, p = 0.008). However, MIDRH was found to be associated with prolonged operative times (SWD = 0.74, p < 0.001), as well as a higher rate of biliary complications in donors (RR = 2.26, p = 0.007) and recipients (RR = 1.69, p < 0.001). There were no statistically significant differences between MIDRH and ODRH in postoperative liver function, rate of major complications and vascular complications of both donors and recipients and overall postoperative complications. DISCUSSION MIDRH is superior to ODRH with regards to intraoperative bleeding, postoperative hospital stay and overall donor complications. Although biliary-related complications are higher, it is feasible to develop MIDRH in experienced liver transplant centers. However, higher-quality research is still needed for corroboration.
Collapse
Affiliation(s)
- Xin Zhao
- Department of Hepatobiliary Surgery, The People's Hospital of Leshan, Leshan, Sichuan, 614000, China Diagnosis and Treatment Center for Liver, Gallbladder, Pancreas and Spleen System Diseases of Leshan, Leshan, Sichuan, 614000, China
| | | | | | | | | | | | | |
Collapse
|
16
|
Zhao ZH, Xie Y, Lei Z, Jiao JL, Zhou WM, Zhou CT, Zhu SP, He XT, Qiao B. Onset of inverse magnetic energy transfer in collisionless turbulent plasmas. Phys Rev E 2021; 104:025204. [PMID: 34525564 DOI: 10.1103/physreve.104.025204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Accepted: 07/28/2021] [Indexed: 11/07/2022]
Abstract
Inverse magnetic energy transfer from small to large scales is a key physical process for the origin of large-scale strong magnetic fields in the universe. However, so far, from the magnetohydrodynamic perspective, the onset of inverse transfer is still not fully understood, especially the underlying dynamics. Here, we use both two-dimensional and three-dimensional particle-in-cell simulations to show the self-consistent dynamics of inverse transfer in collisionless decaying turbulent plasmas. Using the space filtering technique in theory and numerical analyses, we identify magnetic reconnection as the onset and fundamental drive for inverse transfer, where, specifically, the subscale electromotive force driven by magnetic reconnection do work on the large-scale magnetic field, resulting in energy transfer from small to large scales. The mechanism is also verified by the strong correlations in locations and characteristic scales between inverse transfer and magnetic reconnection.
Collapse
Affiliation(s)
- Z H Zhao
- Center for Applied Physics and Technology, HEDPS, and SKLNPT, School of Physics, Peking University, Beijing 100871, China
| | - Y Xie
- Center for Applied Physics and Technology, HEDPS, and SKLNPT, School of Physics, Peking University, Beijing 100871, China
| | - Z Lei
- Center for Applied Physics and Technology, HEDPS, and SKLNPT, School of Physics, Peking University, Beijing 100871, China
| | - J L Jiao
- Center for Applied Physics and Technology, HEDPS, and SKLNPT, School of Physics, Peking University, Beijing 100871, China
| | - W M Zhou
- Science and Technology on Plasma Physics Laboratory, Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang 621900, China
| | - C T Zhou
- Center for Advanced Material Diagnostic Technology, Shenzhen Technology University, Shenzhen 518118, China
| | - S P Zhu
- Institute of Applied Physics and Computational Mathematics, Beijing 100094, China
| | - X T He
- Center for Applied Physics and Technology, HEDPS, and SKLNPT, School of Physics, Peking University, Beijing 100871, China.,Institute of Applied Physics and Computational Mathematics, Beijing 100094, China
| | - B Qiao
- Center for Applied Physics and Technology, HEDPS, and SKLNPT, School of Physics, Peking University, Beijing 100871, China
| |
Collapse
|
17
|
Gong J, Gao F, Xie Q, Zhao X, Lei Z. Open Resection Compared to Mini-Invasive in Colorectal Cancer and Liver Metastases: A Meta-Analysis. Front Surg 2021; 8:726217. [PMID: 34527699 PMCID: PMC8435840 DOI: 10.3389/fsurg.2021.726217] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Accepted: 07/27/2021] [Indexed: 12/26/2022] Open
Abstract
Background: We performed a meta-analysis to evaluate the outcomes of minimally invasive surgery and open surgery in the simultaneous resection of colorectal cancer and synchronous colorectal liver metastases. Methods: A systematic literature search up to April 2021 was done and 13 studies included 1,181 subjects with colorectal cancer and synchronous colorectal liver metastases at the start of the study; 425 of them were using minimally invasive surgery and 756 were open surgery. They were reporting relationships between the outcomes of minimally invasive surgery and open surgery in the simultaneous resection of colorectal cancer and synchronous colorectal liver metastases. We calculated the odds ratio (OR) or the mean difference (MD) with 95% CIs to assess the outcomes of minimally invasive surgery and open surgery in the simultaneous resection of colorectal cancer and synchronous colorectal liver metastases using the dichotomous or continuous method with a random or fixed-effect model. Results: Minimally invasive surgery in subjects with colorectal cancer and synchronous colorectal liver metastases was significantly related to longer operation time (MD, 35.61; 95% CI, 7.36-63.87, p = 0.01), less blood loss (MD, -151.62; 95% CI, -228.84 to -74.40, p < 0.001), less blood transfusion needs (OR, 0.61; 95% CI, 0.42-0.89, p = 0.01), shorter length of hospital stay (MD, -3.26; 95% CI, -3.67 to -2.86, p < 0.001), lower overall complications (OR, 0.59; 95% CI, 0.45-0.79, p < 0.001), higher overall survival (OR, 1.66; 95% CI, 1.21-2.29, p = 0.002), and higher disease-free survival (OR, 1.49; 95% CI, 1.13-1.97, p = 0.005) compared to open surgery. Conclusions: Minimally invasive surgery in subjects with colorectal cancer and synchronous colorectal liver metastases may have less blood loss, less blood transfusion needs, shorter length of hospital stay, lower overall complications, higher overall survival, and higher disease-free survival with longer operation time compared with the open surgery. Furthers studies are required to validate these findings.
Collapse
Affiliation(s)
| | | | | | | | - Zehua Lei
- Department of Hepatobiliary and Pancreatic Spleen, Leshan People's Hospital, Leshan, China
| |
Collapse
|
18
|
Tao T, Luo D, Gao C, Liu H, Lei Z, Liu W, Zhou C, Qi D, Deng Z, Sun X, Xiao J. Src Homology 2 Domain-Containing Protein Tyrosine Phosphatase Promotes Inflammation and Accelerates Osteoarthritis by Activating β-Catenin. Front Cell Dev Biol 2021; 9:646386. [PMID: 33898435 PMCID: PMC8063055 DOI: 10.3389/fcell.2021.646386] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2020] [Accepted: 03/18/2021] [Indexed: 01/25/2023] Open
Abstract
Osteoarthritis (OA) is a chronic articular disease characterized by cartilage degradation, subchondral bone remodeling and osteophyte formation. Src homology 2 domain-containing protein tyrosine phosphatase (SHP2) has not been fully investigated in the pathogenesis of OA. In this study, we found that SHP2 expression was significantly increased after interleukin-1β (IL-1β) treatment in primary mouse chondrocytes. Inhibition of SHP2 using siRNA reduced MMP3, MMP13 levels, but increased AGGRECAN, COL2A1, SOX9 expression in vitro. On the contrary, overexpression of SHP2 exerted the opposite results and promoted cartilage degradation. Mechanistically, SHP2 activated Wnt/β-catenin signaling possibly through directly binding to β-catenin. SHP2 also induced inflammation through activating Mitogen-activated protein kinase (MAPK) and nuclear factor κB (NF-κB) pathways. Our in vivo studies showed that SHP2 knockdown effectively delayed cartilage destruction and reduced osteophyte formation in the mouse model of OA induced by destabilization of the medial meniscus (DMM). Altogether, our study identifies that SHP2 is a novel and potential therapeutic target of OA.
Collapse
Affiliation(s)
- Tenghui Tao
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Danni Luo
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Chenghao Gao
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Hui Liu
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zehua Lei
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Wenbin Liu
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Chuankun Zhou
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Dahu Qi
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zhenhan Deng
- Department of Sports Medicine, The First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Shenzhen, China
| | - Xuying Sun
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jun Xiao
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| |
Collapse
|
19
|
Li X, Ji X, Chen K, Yuan X, Lei Z, Ullah MW, Xiao J, Yang G. Preparation and evaluation of ion-exchange porous polyvinyl alcohol microspheres as a potential drug delivery embolization system. Mater Sci Eng C Mater Biol Appl 2021; 121:111889. [PMID: 33579501 DOI: 10.1016/j.msec.2021.111889] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Revised: 01/07/2021] [Accepted: 01/10/2021] [Indexed: 01/27/2023]
Abstract
The present study aimed to develop a new drug delivery system with efficient drug loading and sustained drug release for potential application in transarterial chemoembolization (TACE). The porous polyvinyl alcohol microspheres (PPVA MS) were prepared by a combination of inverse emulsification and thermal-induced phase separation (TIPS) method, this was followed by the grafting polymerization of sodium 4-styrene sulfonate (SSS) onto the PPVA MS to obtain the grafted PPVA-g-PSSS MS. The prepared PPVA MS showed a well-defined spherical shape with 'honeycomb-like' porous structure, which could be readily tailored by adjusting the quenching temperature. In vitro biocompatibility analysis indicated the non-cytotoxic and hemocompatible nature of PPVA MS. The porous structure and presence of ionically charged groups in the PPVA-g-PSSS MS favoured the loading of cationic doxorubicin (DOX) onto the MS through ionic-interactions and demonstrated a sustained drug release pattern. Moreover, the cytotoxicity of DOX-loaded PPVA-g-PSSS (DOX@PPVA-g-PSSS) MS against HepG2 cells and the intracellular uptake of DOX demonstrated the potent in vitro antitumor activity. Furthermore, the central auricular artery embolization in rabbits showed that both the PPVA-g-PSSS and DOX@PPVA-g-PSSS MS could occlude the auricular arteries and induced superior embolization effects, such as progressive ear appearance changes, irreversible parenchymal damage and fibrosis, and ultrastructural alternations in endothelial cells. Besides, the DOX fluorescence was distributed around the embolized arteries, without decreasing its intensity when prolonged embolization up to 15 days. These findings suggest that the newly developed DOX@PPVA-g-PSSS MS could be employed as a promising drug-loaded embolic agent for the treatment of hepatocellular carcinoma.
Collapse
Affiliation(s)
- Xiaohong Li
- Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Xiongfa Ji
- Department of Orthopedics, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, China
| | - Kun Chen
- Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Xi Yuan
- Department of Orthopaedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Zehua Lei
- Department of Orthopaedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Muhammad Wajid Ullah
- Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China.
| | - Jun Xiao
- Department of Orthopaedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China.
| | - Guang Yang
- Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China.
| |
Collapse
|
20
|
Zhao X, Lei Z, Gao F, Xie Q, Jang K, Gong J. The impact of coronavirus disease 2019 (COVID-19) on liver injury in China: A systematic review and meta-analysis. Medicine (Baltimore) 2021; 100:e24369. [PMID: 33530232 PMCID: PMC7850764 DOI: 10.1097/md.0000000000024369] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Revised: 11/09/2020] [Accepted: 12/16/2020] [Indexed: 02/06/2023] Open
Abstract
INTRODUCTION The evidence for the incidence and severity of liver injury in Chinese patients with coronavirus disease 2019 (COVID-19) is still controversial. The purpose of this study was to summarize the incidence of liver injury and the differences between liver injury markers among different patients with COVID-19 in China. METHODS Computer searches of PubMed, Embase, China National Knowledge Infrastructure (CNKI) and medRxiv were used to obtain reports on the incidence and markers of liver injury in Chinese patients with COVID-19, from January 1, 2020 to April 10, 2020. (No. CRD42020181350). RESULTS A total of 57 reports from China were included, including 9889 confirmed cases of COVID-19 infection. The results of the meta-analysis showed that among the patients with early COVID-19 infection in China, the incidence of liver injury events was 24.7% (95% CI, 23.4%-26.4%). Liver injury in severe patients was more common than that in non-severe patients, with a risk ratio of 2.07 (95% CI, 1.77-2.43). Quantitative analysis showed that the severe the coronavirus infection, the higher the level of alanine aminotransferase (ALT), aspertate aminotransferase (AST), total bilirubin (TB), alkaline phosphatase (ALP), γ-glutamyl transpeptidase (GGT), and the lower the level of albumin (ALB). CONCLUSION There is a certain risk of liver injury in Chinese patients with COVID-19, and the risk and degree of liver injury are related to the severity of COVID-19.
Collapse
Affiliation(s)
- Xin Zhao
- Department of Hepatobiliary Surgery, Peoples Hospital of Leshan
- Diagnosis and Treatment Center for Liver, Gallbladder, Pancreas and Spleen System Diseases, Leshan City, Sichuan Province, China
| | - Zehua Lei
- Department of Hepatobiliary Surgery, Peoples Hospital of Leshan
- Diagnosis and Treatment Center for Liver, Gallbladder, Pancreas and Spleen System Diseases, Leshan City, Sichuan Province, China
| | - Fengwei Gao
- Department of Hepatobiliary Surgery, Peoples Hospital of Leshan
- Diagnosis and Treatment Center for Liver, Gallbladder, Pancreas and Spleen System Diseases, Leshan City, Sichuan Province, China
| | - Qingyun Xie
- Department of Hepatobiliary Surgery, Peoples Hospital of Leshan
- Diagnosis and Treatment Center for Liver, Gallbladder, Pancreas and Spleen System Diseases, Leshan City, Sichuan Province, China
| | - Kangyi Jang
- Department of Hepatobiliary Surgery, Peoples Hospital of Leshan
- Diagnosis and Treatment Center for Liver, Gallbladder, Pancreas and Spleen System Diseases, Leshan City, Sichuan Province, China
| | - Jie Gong
- Department of Hepatobiliary Surgery, Peoples Hospital of Leshan
- Diagnosis and Treatment Center for Liver, Gallbladder, Pancreas and Spleen System Diseases, Leshan City, Sichuan Province, China
| |
Collapse
|
21
|
Li T, Qian D, Guoyan J, Lei Z. Downregulated long noncoding RNA LUCAT1 inhibited proliferation and promoted apoptosis of cardiomyocyte via miR-612/HOXA13 pathway in chronic heart failure. Eur Rev Med Pharmacol Sci 2021; 24:385-395. [PMID: 31957853 DOI: 10.26355/eurrev_202001_19937] [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] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE Long non-coding RNAs (lncRNAs) have been reported to play important roles in numerous kinds of cardiovascular disease, including chronic heart failure (CHF). In this study, we mainly focused on investigating the potential roles of lncRNA LUCAT1 patients with CHF. PATIENTS AND METHODS RT-PCR was used to detect the expressions of LUCAT1 and miR-612 in serum samples of CHF patients (n=60) and healthy volunteers. Relationships between the expressions of LUCAT1 and miR-612, LUCAT1 and overall survival (OS) were analyzed using the Kaplan-Meier method. Si-LUCAT1 and miR-612 mimic were constructed and respectively transfected into AC16 cells to explore the functions of LUCAT1 and miR-612. Cell proliferation abilities were detected by CCK-8 assay AC16 cells. Cell apoptotic rates were measured by flow cytometry (FACS) analysis. Western blot (WB) was performed to detect the protein levels of HOXA13, Bcl-2, Bax, Bad and Cleaved Caspase3. In addition, luciferase gene reporter assay was used to prove the relationships between LUCAT1 and miR-612, miR-612 and HOXA13. RESULTS Firstly, we found that LUCAT1 was decreased for 1.7 folds in CHF patients, which was correlated with poor prognosis patients. LUCAT1 repression inhibited cell proliferation and promoted cell apoptosis in human cardiomyocyte cell line AC16 cells. Furthermore, we found that miR-612 was increased for 2.0 folds in CHF patients, which was negatively interacted with LUCAT1 expression. Luciferase gene reporter assay demonstrated that LUCAT1 could directly bind with miR-612 in AC16 cells. Moreover, miR-612 overexpression also inhibited cell proliferation and promoted cell apoptosis in AC16 cells. Luciferase reporter assay indicated that miR-612 could directly target at HOXA13 in AC16 cells, which was associated with cell proliferation and apoptosis. Finally, miR-612 inhibitor was transfected into AC16 cells with si-LUCAT1. The results showed that the inhibited cell proliferation and promoted cell apoptosis were reversed, which confirmed that LUCAT1 repression inhibited cell proliferation and promoted apoptosis via miR-612/HOXA13 axis in CHF patients. CONCLUSIONS According to the above results, our study revealed that LUCAT1 was decreased in CHF patients, which was correlated with poor prognosis of CHF patients. Furthermore, the downregulation of LUCAT1 inhibited cell proliferation and promoted cell apoptosis via targeting miR-612/HOXA13 axis. Our results elucidated a potential mechanism underlying cardiomyocyte apoptosis, which might be used as a promising prognostic marker and a potential target for CHF patients.
Collapse
Affiliation(s)
- T Li
- Department of ICU, The Third Affiliated Hospital of Chongqing Medical University (Gener Hospital), Chongqing, China.
| | | | | | | |
Collapse
|
22
|
Pang M, Shi Z, Lei Z, Ge Y, Jiang S, Cao L. Structure and thermal properties of beeswax-based oleogels with different types of vegetable oil. Grasas y Aceites 2020. [DOI: 10.3989/gya.0806192] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Beeswax-based oleogels with different types of vegetable oil, including camellia oil (CO), soybean oil (SO), sunflower oil (SFO), or flaxseed oil (FO), were prepared and their structure and thermal properties were evaluated. The critical concentration of oleogel obtained from each of CO, SO, and SFO at 25 °C was 3% (w/w), and that from FO was 4%. Thermal measurements revealed similar thermodynamic curves for oleogels in different lipid phases. X-Ray diffraction showed orthorhombic perpendicular subcell packing and characteristic peaks of the β’ form. Furthermore, a morphology analysis of the crystals showed that they were needle shaped. Fourier transform-infrared spectra revealed that beeswax-based oleogels were formed via non-covalent bonds and may be stabilized with physical entanglements. The oleogels showed oil type-dependent oxidative abilities, but they were all stable and showed no obvious changes in peroxide value during 90 days of storage at 5 °C.
Collapse
|
23
|
Fritzsche B, Mutschke G, Meinel TJ, Yang X, Lei Z, Eckert K. Oscillatory surface deformation of paramagnetic rare-earth solutions driven by an inhomogeneous magnetic field. Phys Rev E 2020; 101:062601. [PMID: 32688567 DOI: 10.1103/physreve.101.062601] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Accepted: 05/14/2020] [Indexed: 11/07/2022]
Abstract
The deformation of the free surface of a paramagnetic liquid subjected to a nonuniform magnetic field is studied. A transient deformation of the surface caused by the interplay of gravity, magnetic field, and surface tension is observed when a permanent magnet is moved vertically downward to the free surface of the liquid. Different concentrations of rare-earth-metal salt (DyCl_{3}) are used and different magnet velocities are studied. The deformation of the interface is followed optically by means of a microscope and recorded with a high-speed camera. The experimental results are compared and discussed with complementary numerical simulations. Detailed results are given for the static shape of the deformed surface and the temporal evolution of the surface deformation below the center of the magnet. The frequency of the surface oscillations is found to depend on the concentration of the salt and is compared with analytical findings. Finally, a potential application of the effects observed is presented.
Collapse
Affiliation(s)
- B Fritzsche
- Institute of Process Engineering and Environmental Technology, Technische Universität Dresden, 01062 Dresden, Germany
| | - G Mutschke
- Helmholtz-Zentrum Dresden-Rossendorf, Institute of Fluid Dynamics, Bautzener Landstrasse 400, 01328 Dresden, Germany
| | - T J Meinel
- Institute of Process Engineering and Environmental Technology, Technische Universität Dresden, 01062 Dresden, Germany
| | - X Yang
- Institute of Process Engineering and Environmental Technology, Technische Universität Dresden, 01062 Dresden, Germany.,Helmholtz-Zentrum Dresden-Rossendorf, Institute of Fluid Dynamics, Bautzener Landstrasse 400, 01328 Dresden, Germany
| | - Z Lei
- Institute of Process Engineering and Environmental Technology, Technische Universität Dresden, 01062 Dresden, Germany.,Helmholtz-Zentrum Dresden-Rossendorf, Institute of Fluid Dynamics, Bautzener Landstrasse 400, 01328 Dresden, Germany
| | - K Eckert
- Institute of Process Engineering and Environmental Technology, Technische Universität Dresden, 01062 Dresden, Germany.,Helmholtz-Zentrum Dresden-Rossendorf, Institute of Fluid Dynamics, Bautzener Landstrasse 400, 01328 Dresden, Germany
| |
Collapse
|
24
|
Zhang B, Lei Z, Liu ZQ, Zheng YG. Improvement of gibberellin production by a newly isolated Fusarium fujikuroi mutant. J Appl Microbiol 2020; 129:1620-1632. [PMID: 32538506 DOI: 10.1111/jam.14746] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Revised: 05/20/2020] [Accepted: 06/08/2020] [Indexed: 12/31/2022]
Abstract
AIMS To obtain and investigate the potential mechanism for GA3 production in Fusarium fujikuroi GA-251, a high GA3 producer. METHODS AND RESULTS Fusarium fujikuroi IMI 58289 was bred with Cobalt-60 (60 Co) radiation and lithium chloride treatment. The best mutant strain GA-251 was obtained for the subsequent optimization of fermentation conditions. The yield of GA3 by GA-251 was 2100 mg l-1 , while the wild-type strain was 100 mg l-1 , which is a 21-fold increase in the yield. To elucidate the mechanism of high GA3 yield of GA-251, the genome was sequenced and compared with wild-type strain IMI 58289. The results showed 2295 single nucleotide polymorphisms, 1242 small indels and 30 structural variants. These mutations were analysed and enriched in the MAPK signalling pathway, the mRNA surveillance pathway and endocytosis. The potential reasons for the improved GA3 biosynthesis were investigated. CONCLUSIONS The potential mechanism of high GA3 yield was attributed to endocytosis pathway and histone modification proteins family. SIGNIFICANCE AND IMPACT OF THE STUDY A mutant strain GA-251 in this work that could potentially be utilized in the industrial yield of GA3 . The comparative genome analysis would shed light onto the mechanism of yield improvement and be a theoretical guide for further metabolic engineering.
Collapse
Affiliation(s)
- B Zhang
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, Zhejiang, China.,Engineering Research Center of Bioconversion and Bio-purification, Ministry of Education, Zhejiang University of Technology, Hangzhou, Zhejiang, China
| | - Z Lei
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, Zhejiang, China.,Engineering Research Center of Bioconversion and Bio-purification, Ministry of Education, Zhejiang University of Technology, Hangzhou, Zhejiang, China
| | - Z-Q Liu
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, Zhejiang, China.,Engineering Research Center of Bioconversion and Bio-purification, Ministry of Education, Zhejiang University of Technology, Hangzhou, Zhejiang, China
| | - Y-G Zheng
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, Zhejiang, China.,Engineering Research Center of Bioconversion and Bio-purification, Ministry of Education, Zhejiang University of Technology, Hangzhou, Zhejiang, China
| |
Collapse
|
25
|
Abstract
Background To investigate the early prediction value of procalcitonin (PCT) in pancreatic fistula (POPF) after pancreatoduodenectomy (PD). Method Retrospective analysis of clinical data of 67 patients undergoing pancreaticoduodenectomy (PD) and 19 patients undergoing distalpancreatectomy (DP) were performed in the Department of Hepatobiliary Surgery, Leshan People’s Hospital from January 2017 to December 2018. All patients were divided into POPF group and non-POPF group depending on the presence of pancreatic fistula. And fistulas were classified according to the ISGPF classification scheme. Plasma PCT levels, serum CRP concentration, and WBC counts were assessed preoperatively and on postoperative days (PODs) 1, 3, and 5. Statistical analyses were performed with statistical software. The ROC curve was used to analyze the efficacy of PCT and CRP in POPF prediction after surgery and determine their Cut-off value. Result There were no statistically significant differences identified in age, gender, BMI, diabetes, abdominal surgery history, preoperative laboratory data, operation time, intraoperative bleeding volume, tumor nature and medical expenses of PD patients between the two groups (P > 0.05). While the incidence of postoperative hyperglycemia, postoperative ICU rate and postoperative hospital stay were statistically significant (P < 0.05). The AUC for PCT diagnosis of pancreatic fistula 1 day after surgery was 0.77 (95% CI: 0.675 ~ 0.860). Compared with CRP [0.53 (95% CI: 0.420 ~ 0.639)] and WBC [0.60 (95% CI: 0.490 ~ 0.705)], the optimal cut-off value (cut-off) was 0.67 μg/L. At this time, the sensitivity and specificity of detecting pancreatic fistula were 73.68 and 76.12%, respectively. The results at 3 days after surgery were similar to those at 5 days after surgery. And DP patients had similar results as PD patients. Conclusion The PCT is valuable for early prediction of pancreatic fistula after Pancreaticoduodenectomy.
Collapse
Affiliation(s)
- Quanyu Zhou
- Department of Hepatobiliary and Pancreatic Surgery, The People's Hospital of Leshan City, Leshan, Sichuan, 614000, People's Republic of China
| | - Yuxiao Xia
- Department of Nuclear Medicine, The Affiliated Hospital, Southwest Medical University, No 15 TaiPing St, Jiangyang District, Luzhou, 64600, Sichuan, People's Republic of China
| | - Zehua Lei
- Department of Hepatobiliary and Pancreatic Surgery, The People's Hospital of Leshan City, Leshan, Sichuan, 614000, People's Republic of China.
| |
Collapse
|
26
|
Li X, Ji X, Chen K, Ullah MW, Yuan X, Lei Z, Cao J, Xiao J, Yang G. Development of finasteride/PHBV@polyvinyl alcohol/chitosan reservoir-type microspheres as a potential embolic agent: from in vitro evaluation to animal study. Biomater Sci 2020; 8:2797-2813. [PMID: 32080688 DOI: 10.1039/c9bm01775e] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Benign prostatic hyperplasia (BPH) is a prevalent urological disease affecting elders. Currently, the prostatic artery embolization (PAE) is considered as a minimally invasive and safe technique to treat BPH. However, various drug-loaded embolic agents have not been thoroughly investigated in BPH therapy. In this study, finasteride/poly(3-hydroxybutyrate-3-hydroxyvalerate)@polyvinyl alcohol/chitosan (FNS/PHBV@PVA/CS) reservoir-type microspheres were prepared via the solid-in-water-in-oil (S/W/O) emulsion crosslinking method with the aim to reduce the burst effect and control localized drug delivery. The structure and properties of the drug and resultant microspheres were characterized via field emission scanning electron microscopy (FESEM), Fourier-transform infrared (FTIR) spectroscopy, X-ray diffraction (XRD), and thermogravimetric analysis (TGA). The results showed that the drug-loaded hybrid microspheres were well-dispersed and spherical with a mean diameter of 238.1 ± 27.3 μm. All samples exhibited excellent thermal stability. The FNS/PHBV microspheres were successfully encapsulated inside the PVA/CS polymeric matrix, which effectively suppressed the burst effect and prolonged the drug release up to 51 days. In vitro biocompatibility assessment indicated that the microspheres possessed excellent cytocompatibility and hemocompatibility. Furthermore, in vivo studies performed in the rabbit ear embolization model showed the formation of progressive ischemic necrosis after treatment for various periods. Histopathological studies revealed that the microspheres completely occluded the blood vessels with minimal foreign body response and formed the fibrotic area at the periphery of embolized arteries. Furthermore, the auricular vascular endothelial cells showed acute ultrastructural changes, associated with the ischemic necrosis induced by the embolization procedures. All these findings suggest that the FNS/PHBV@PVA/CS hybrid microspheres could be used as a promising drug delivery system for potential applications in BPH therapy.
Collapse
Affiliation(s)
- Xiaohong Li
- Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China.
| | | | | | | | | | | | | | | | | |
Collapse
|
27
|
Ji X, Lei Z, Yuan M, Zhu H, Yuan X, Liu W, Pu H, Jiang J, Zhang Y, Jiang X, Xiao J. Cartilage repair mediated by thermosensitive photocrosslinkable TGFβ1-loaded GM-HPCH via immunomodulating macrophages, recruiting MSCs and promoting chondrogenesis. Theranostics 2020; 10:2872-2887. [PMID: 32194841 PMCID: PMC7052899 DOI: 10.7150/thno.41622] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Accepted: 01/14/2020] [Indexed: 12/22/2022] Open
Abstract
Repairing cartilage defects using thermosensitive hydrogels is an attractive treatment strategy, but the poor mechanical properties and limited understanding of the interactions between hydrogels and cells limit their application. Methods: In this study, a thermosensitive hydroxypropyl chitin hydrogel (HPCH) was functionalized with methacrylate groups to synthesize photocrosslinkable glycidyl methacrylate-modified HPCH (GM-HPCH). GM-HPCH could form a gel in situ through a thermosensitive sol-gel transition and its mechanical properties can be improved by UV irradiation. Cell viability, cell adhesion and anti-apoptosis activity of GM-HPCH were evaluated. Transforming growth factor-β1 (TGFβ1) was introduced into the GM-HPCH hydrogel to fabricate the composite hydrogel. The macrophage immunomodulation, MSC recruitment and chondrogenesis of the composite hydrogel were evaluated. Results: With high biocompatibility, GM-HPCH could protect chondrocytes from apoptosis. Both the in vitro and in vivo experiments showed that GM-HPCH + TGFβ1 shifted the recruited macrophages from M1 to M2 and promoted chondrogenic gene expression. Additionally, the composite hydrogel could promote the migration of marrow stromal cells (MSCs) in the Transwell test and increase migrated gene expression. The fluorescent tracking of MSCs confirmed MSC homing in the rat chondral defect with the help of GM-HPCH. The macroscopic evaluation and histological results at 6 weeks and 12 weeks postsurgery showed that GM-HPCH + TGFβ1 can achieve superior cartilage healing. Conclusions: The GM-HPCH + TGFβ1 hydrogel effectively promoted cartilage repair via immunomodulating macrophages, recruiting MSCs and promoting chondrogenesis; thus it is a promising injectable hydrogel for cartilage regeneration.
Collapse
Affiliation(s)
- Xiongfa Ji
- Department of Orthopaedic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
- Department of Orthopedics, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong 510080, PR China
| | - Zehua Lei
- Department of Orthopaedic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Meng Yuan
- Key Laboratory of Biomedical Polymers of Ministry of Education & Department of Chemistry, Wuhan University, Wuhan, 430072, China
| | - Hao Zhu
- Department of Orthopaedic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Xi Yuan
- Department of Orthopaedic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Wenbin Liu
- Department of Orthopaedic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Hongxu Pu
- Department of Orthopaedic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Jiawei Jiang
- Department of Orthopaedic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Yu Zhang
- Department of Orthopedics, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong 510080, PR China
| | - Xulin Jiang
- Key Laboratory of Biomedical Polymers of Ministry of Education & Department of Chemistry, Wuhan University, Wuhan, 430072, China
| | - Jun Xiao
- Department of Orthopaedic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| |
Collapse
|
28
|
Li X, Chen K, Ji X, Yuan X, Lei Z, Ullah MW, Xiao J, Yang G. Microencapsulation of Poorly Water-soluble Finasteride in Polyvinyl Alcohol/chitosan Microspheres as a Long-term Sustained Release System for Potential Embolization Applications. ACTA ACUST UNITED AC 2020. [DOI: 10.30919/es8d1159] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
|
29
|
Ji X, Yuan X, Ma L, Bi B, Zhu H, Lei Z, Liu W, Pu H, Jiang J, Jiang X, Zhang Y, Xiao J. Mesenchymal stem cell-loaded thermosensitive hydroxypropyl chitin hydrogel combined with a three-dimensional-printed poly(ε-caprolactone) /nano-hydroxyapatite scaffold to repair bone defects via osteogenesis, angiogenesis and immunomodulation. Theranostics 2020; 10:725-740. [PMID: 31903147 PMCID: PMC6929983 DOI: 10.7150/thno.39167] [Citation(s) in RCA: 84] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2019] [Accepted: 10/08/2019] [Indexed: 12/01/2022] Open
Abstract
Chitin-derived hydrogels are commonly used in bone regeneration because of their high cell compatibility; however, their poor mechanical properties and little knowledge of the interaction between the materials and host cells have limited their practical application. Methods: To evaluate osteoinductivity and enhance the mechanical properties of a newly synthesized thermosensitive hydroxypropyl chitin hydrogel (HPCH), a mesenchymal stem cell (MSC)-encapsulated HPCH was infused into a three-dimensional-printed poly (ε-caprolactone) (PCL)/ nano-hydroxyapatite (nHA) scaffold to form a hybrid scaffold. The mechanical properties and cell compatibility of the scaffold were tested. The interaction between macrophages and scaffold for angiogenesis and osteogenesis were explored in vitro and in vivo. Results: The hybrid scaffold showed improved mechanical properties and high cell viability. When MSCs were encapsulated in HPCH, osteo-differentiation was promoted properly via endochondral ossification. The co-culture experiments showed that the hybrid scaffold facilitated growth factor secretion from macrophages, thus promoting vascularization and osteoinduction. The Transwell culture proved that MSCs modulated the inflammatory response of HPCH. Additionally, subcutaneous implantation of MSC-encapsulated HPCH confirmed M2 activation. In situ evaluation of calvarial defects confirmed that the repair was optimal in the MSC-loaded HPCH + PCL/nHA group. Conclusions: PCL/nHA + HPCH hybrid scaffolds effectively promoted vascularization and osteoinduction via osteogenesis promotion and immunomodulation, which suggests promising applications for bone regeneration.
Collapse
Affiliation(s)
- Xiongfa Ji
- Department of Orthopedics, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong 510080, PR China
- Department of Orthopaedic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Xi Yuan
- Department of Orthopaedic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Limin Ma
- Department of Orthopedics, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong 510080, PR China
| | - Bo Bi
- Key Laboratory of Biomedical Polymers of Ministry of Education & Department of Chemistry, Wuhan University, Wuhan, 430072, China
| | - Hao Zhu
- Department of Orthopaedic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Zehua Lei
- Department of Orthopaedic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Wenbin Liu
- Department of Orthopaedic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - HongXu Pu
- Department of Orthopaedic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Jiawei Jiang
- Department of Orthopaedic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Xulin Jiang
- Key Laboratory of Biomedical Polymers of Ministry of Education & Department of Chemistry, Wuhan University, Wuhan, 430072, China
| | - Yu Zhang
- Department of Orthopedics, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong 510080, PR China
| | - Jun Xiao
- Department of Orthopaedic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| |
Collapse
|
30
|
Abstract
Human monocyte differentiation antigen CD14 is a pattern recognition receptor (PRR) that enhances innate immune responses. CD14 was first identified as a marker of monocytes to signal intracellular responses upon bacterial encounters. Given the absence of an intracellular tail, CD14 was doubted to have the signaling capacities. Later CD14 was confirmed as the TLR co-receptor for the detection of pathogen-associated molecular patterns. However, CD14 has been revealed as a multi-talented receptor. In last decade, CD14 was identified to activate NFAT to regulate the life cycle of myeloid cells in a TLR4-independent manner and to transport inflammatory lipids to induce phagocyte hyperactivation. And its influences on multiple related diseases have been further considered. In this review, we summarize advancements in the basic biology of the CD14 including its structure, binding ligands, signaling pathways, and its roles in the pathogenesis of inflammation, atherosclerosis, tumor and metabolic diseases. We also discuss the therapeutic potential of targeting the CD14 in related diseases.
Collapse
Affiliation(s)
- Zhenghao Wu
- Department of Immunology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China; Department of Breast and Thyroid Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Zhenxiong Zhang
- Department of Immunology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China; Department of Biliary-Pancreatic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030 China
| | - Zehua Lei
- Department of Immunology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China; Department of Orthopaedic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Ping Lei
- Department of Immunology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China.
| |
Collapse
|
31
|
Huang M, Marinaro G, Yang X, Fritzsche B, Lei Z, Uhlemann M, Eckert K, Mutschke G. Mass transfer and electrolyte flow during electrodeposition on a conically shaped electrode under the influence of a magnetic field. J Electroanal Chem (Lausanne) 2019. [DOI: 10.1016/j.jelechem.2019.04.043] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
32
|
Kang X, Wang Y, Liang J, Lei Z. 810 Expression of activity-induced Cytidine Deaminase in melanoma and its correlation with the BRAF mutation and clinicopathological features. J Invest Dermatol 2019. [DOI: 10.1016/j.jid.2019.03.886] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
33
|
Zhou Q, Fengwei-Gao, Gong J, Xie Q, Liu Y, Wang Q, Lei Z. Assessement of postoperative long-term survival quality and complications associated with radical antegrade modular pancreatosplenectomy and distal pancreatectomy: a meta-analysis and systematic review. BMC Surg 2019; 19:12. [PMID: 30691444 PMCID: PMC6348671 DOI: 10.1186/s12893-019-0476-x] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2018] [Accepted: 01/15/2019] [Indexed: 01/11/2023] Open
Abstract
BACKGROUND This study evaluated the perioperative complications and the long-term pancreatic survival outcomes in patients treated with radical antegrade modular pancreatosplenectomy (RAMPS) and distal pancreatectomy (DP). METHOD We performed a computer search on the PubMed, Embase and Cochrane Library databases to retrieve the RCT or clinical trials comparing RAMPS and DP published before July of 2018. The quality of the included trials was assessed according to the inclusion and exclusion criteria by two researchers independently. The RevMan 5.3 software was used to extract and analyze the data. RESULT A total of 5 retroprospective clinical trial articles comprising 285 patients were included in the study. The number of patients who underwent RAMPS were 135 and 150 for DP. There were significant differences (P < 0.05) in the operation time [WMD = - 63.93, 95% CI (- 68.86 ~ - 58.99), P<0.00001], and bleeding volume [WMD = - 184.62, 95% CI (- 211.88 ~ - 157.37), P<0.00001] between the two groups. However, no significant differences were observed between RAMPS and DP in terms of pancreatic fistula, postoperative complications, postoperative hospital stay, and mortality (P>0. 05). As for pathological examination, there were statistically significant differences between RAMPS and DP in the R0 resection rate [RR = 2.37, 95% CI (1.19 ~ 4.72), P = 0.01] and the number of lymph node excision [WMD = 7.08, 95% CI (4.59 ~ 9.58), P<0.000013]. The one-year overall survival rate was higher in RAMPS patients compared to DP patients [RR = 1.20, 95% CI (1.02 ~ 1.41), P = 0.02]. But there were no significant difference in postoperative recurrence [RR = 0.85, 95% CI (0.70 ~ 1.04), P = 0.13] between the two groups. CONCLUSION RAMPS is an effective procedure for clinical application. Nevertheless, large, multicenter prospective randomized controlled trias are required to validate these findings. CONCLUSION The RAMPS procedure was associated with good postoperative outcomes and overall survival, indicating that it is an effective procedure for clinical application. Large, multicenter prospective randomized controlled trials are needed to validate these findings.
Collapse
Affiliation(s)
- Quanyu Zhou
- Department of Hepatobiliary and Pancreatic Surgery, The People’s Hospital of Leshan City, Leshan, Sichuan 614000 People’s Republic of China
| | - Fengwei-Gao
- Department of Hepatobiliary and Pancreatic Surgery, The People’s Hospital of Leshan City, Leshan, Sichuan 614000 People’s Republic of China
| | - Jie Gong
- Department of Hepatobiliary and Pancreatic Surgery, The People’s Hospital of Leshan City, Leshan, Sichuan 614000 People’s Republic of China
| | - Qingyun Xie
- Department of Hepatobiliary and Pancreatic Surgery, The People’s Hospital of Leshan City, Leshan, Sichuan 614000 People’s Republic of China
| | - Yu Liu
- Department of Hepatobiliary and Pancreatic Surgery, The People’s Hospital of Leshan City, Leshan, Sichuan 614000 People’s Republic of China
| | - Qing Wang
- Department of Hepatobiliary and Pancreatic Surgery, The People’s Hospital of Leshan City, Leshan, Sichuan 614000 People’s Republic of China
| | - Zehua Lei
- Department of Hepatobiliary and Pancreatic Surgery, The People’s Hospital of Leshan City, Leshan, Sichuan 614000 People’s Republic of China
| |
Collapse
|
34
|
Dondik Y, Lei Z, Gaskins J, Pagidas K. Minichrosome maintenance complex component 8 and 9 gene expression in the menstrual cycle and unexplained primary ovarian insufficiency. Fertil Steril 2018. [DOI: 10.1016/j.fertnstert.2018.07.902] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
|
35
|
Zhang C, Lei Z, Zhang J, Wang Y, Liu Y. Cure behavior and compatibilization of epoxide hyperbranched polyurethane on silica/benzoxazine blend. J Appl Polym Sci 2018. [DOI: 10.1002/app.46879] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- C. Zhang
- Department of Chemical Engineering; School of Chemical Engineering and Technology, Xi'an Jiaotong University; Xi'an 710049 China
| | - Z. Lei
- Department of Chemical Engineering; School of Chemical Engineering and Technology, Xi'an Jiaotong University; Xi'an 710049 China
| | - J. Zhang
- Department of Applied Chemistry; School of Science, Xi'an Jiaotong University; Xi'an 710049 China
| | - Y. Wang
- Department of Chemical Engineering; School of Chemical Engineering and Technology, Xi'an Jiaotong University; Xi'an 710049 China
| | - Y. Liu
- Department of Chemical Engineering; School of Chemical Engineering and Technology, Xi'an Jiaotong University; Xi'an 710049 China
| |
Collapse
|
36
|
Mol E, Lei Z, Bakker MH, Vader P, Schiffelers RM, Dankers PYW, Chamuleau SAJ, Doevendans PA, Goumans MJ, Sluijter JP. 202Slow release of cardiac progenitor cell-derived extracellular vesicles from a pH-switchable hydrogel. Cardiovasc Res 2018. [DOI: 10.1093/cvr/cvy060.152] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- E Mol
- University Medical Center Utrecht, Experimental Cardiology, Utrecht, Netherlands
| | - Z Lei
- University Medical Center Utrecht, Experimental Cardiology, Utrecht, Netherlands
| | - M H Bakker
- Eindhoven University of Technology, Institute for Complex Molecular Systems, Eindhoven, Netherlands
| | - P Vader
- University Medical Center Utrecht, Experimental Cardiology and Laboratory of Clinical Chemistry and Haematology, Utrecht, Netherlands
| | - R M Schiffelers
- University Medical Center Utrecht, Laboratory of Clinical Chemistry and Haematology, Utrecht, Netherlands
| | - PYW Dankers
- Eindhoven University of Technology, Institute for Complex Molecular Systems, Eindhoven, Netherlands
| | - SAJ Chamuleau
- University Medical Center Utrecht, Experimental Cardiology, Utrecht, Netherlands
| | - P A Doevendans
- University Medical Center Utrecht, Experimental Cardiology, Utrecht, Netherlands
| | - M J Goumans
- Leiden University Medical Center, Molecular Cell Biology, Leiden, Netherlands
| | - J P Sluijter
- University Medical Center Utrecht, Experimental Cardiology, Utrecht, Netherlands
| |
Collapse
|
37
|
Xihua L, Lei Z, Chaoping H, Shui zhen Z, Yi W. A comprehensive database of duchenne and becker muscular dystrophy patients in children's hospital of fudan university. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.3057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
38
|
Tang C, Hou Y, Wang H, Wang K, Xiang H, Wan X, Xia Y, Li J, Wei W, Xu S, Lei Z, Pawlik TM, Wang H, Wu M, Shen F. Aspartate β-hydroxylase disrupts mitochondrial DNA stability and function in hepatocellular carcinoma. Oncogenesis 2017; 6:e362. [PMID: 28714949 PMCID: PMC5541716 DOI: 10.1038/oncsis.2017.64] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2017] [Revised: 06/12/2017] [Accepted: 06/14/2017] [Indexed: 02/07/2023] Open
Abstract
The mechanism of aberrant mitochondrial genome and function in hepatocellular carcinoma (HCC) remains largely unknown. Our previous study demonstrated an increased expression of aspartate β-hydroxylase (ASPH) in HCC tissues, which was associated with tumor invasiveness and a worse prognosis. Currently, we unexpectedly observed the presence of ASPH in purified mitochondrial protein fraction. In addition, immunostaining of both exogenously and endogenously expressed ASPH showed a colocalization with mitochondrial biomarkers. This study aimed to investigate whether the mitochondrial ASPH is involved in mitochondrial malfunction in HCC. Our results showed that ASPH overexpression in HCC tissues was correlated with decreased copy numbers of displacement loop (D-loop) and NADH dehydrogenase subunit 1 (ND-1) and enhanced D-loop mutation, suggesting the disrupted mitochondrial DNA (mtDNA) stability. The reduced mtDNA copy numbers were associated with aggressive clinicopathological features of HCC. The loss of mtDNA integrity induced by enforced expression of ASPH was accompanied with mitochondrial dysfunction, which was characterized by the aberrant mitochondrial membrane potential, decreased ATP generation and enhanced reactive oxygen species. In contrast, knocking down ASPH by siRNA in HCC cell lines showed the opposite impact on mtDNA integrity and function. Mass spectrometry and co-immunoprecipitation further identified that ASPH interacted with histone H2A member X (H2AX). ASPH overexpression diminished the interaction between H2AX and mitochondrial transcription factor A (mtTFA), an important DNA-binding protein for mtDNA replication, which then reduced the binding of mtTFA to D-loop region. Collectively, our results demonstrate that ASPH overexpression disrupts the mtDNA integrity through H2AX-mtTFA signal, thereby affecting mitochondrial functions in HCC.
Collapse
Affiliation(s)
- C Tang
- Department of Hepatic Surgery, The Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Shanghai, China.,Department of Hepatobiliary Surgery, The Daping Hospital, Third Military Medical University, Chongqing, China
| | - Y Hou
- Department of Hepatic Surgery, The Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Shanghai, China
| | - H Wang
- Department of Hepatic Surgery, The Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Shanghai, China
| | - K Wang
- Department of Hepatic Surgery, The Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Shanghai, China
| | - H Xiang
- Department of Hepatic Surgery, The Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Shanghai, China
| | - X Wan
- Department of Clinical Database, The Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Shanghai, China
| | - Y Xia
- Department of Hepatic Surgery, The Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Shanghai, China
| | - J Li
- Department of Hepatic Surgery, The Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Shanghai, China
| | - W Wei
- Department of Hepatic Surgery, The Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Shanghai, China
| | - S Xu
- Department of Hepatic Surgery, The Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Shanghai, China
| | - Z Lei
- Department of Hepatic Surgery, The Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Shanghai, China
| | - T M Pawlik
- Department of Surgery, The Ohio State University, Wexner Medical Center, Columbus, OH, USA
| | - H Wang
- National Scientific Center for Liver Cancer, Second Military Medical University, Shanghai, China
| | - M Wu
- Department of Hepatic Surgery, The Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Shanghai, China
| | - F Shen
- Department of Hepatic Surgery, The Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Shanghai, China
| |
Collapse
|
39
|
Zhang S, Dai W, Lu Z, Lei Z, Yang B, He B, Zhou H, Cao J. Preparation and evaluation of cefquinome-loaded gelatin microspheres and the pharmacokinetics in pigs. J Vet Pharmacol Ther 2017; 41:117-124. [PMID: 28656695 DOI: 10.1111/jvp.12429] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2017] [Accepted: 05/25/2017] [Indexed: 11/29/2022]
Abstract
Cefquinome (CEF) is widely used for veterinary clinical applications because of its broad spectrum and high efficiency. However, frequent administrations are required due to its short elimination half-life. In this study, cefquinome sulfate gelatin microspheres (CEF-GMS) were prepared as a sustained-release formulation using emulsion chemical cross-linking technique. Physical properties, stability, sustained-release property in vitro, and pharmacokinetics in pigs were assessed. The morphology of CEF-GMS showed a good sphericity with porous structure on the surface, and the mean diameter was 8.80 ± 0.78 μm, with 90.60 ± 3.98% of the total in the range of 5-20 μm. There were no significant changes of all estimated indexes in the stability tests. In vitro drug release study showed that the release of CEF from CEF-GMS was much slower than that from crude CEF in a release medium. Pharmacokinetic characteristics were evaluated following intramuscular administration of CEF-GMS or Cefquinome sulfate injection (CEF-Inj) in pigs at a dosage of 4 mg CEF/kg body weight. The plasma drug concentration-time data of CEF-GMS and CEF-Inj were both best fitted by two-compartment models with first-order absorption, and the elimination half-life of CEF-GMS was almost 10 times that of CEF-Inj. Overall, CEF-GMS might be used as a sustained-release formulation of CEF for veterinary clinical applications.
Collapse
Affiliation(s)
- S Zhang
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei, China.,Unit of Animal Infectious Diseases, State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, Hubei, China
| | - W Dai
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei, China
| | - Z Lu
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
| | - Z Lei
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei, China
| | - B Yang
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei, China
| | - B He
- Institute of Animal Husbandry and Veterinary, Wuhan Academy of Agricultural Science and Technology, Wuhan, Hubei, China
| | - H Zhou
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei, China.,Unit of Animal Infectious Diseases, State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, Hubei, China
| | - J Cao
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei, China
| |
Collapse
|
40
|
Xue H, Ting G, Xue J, Lu H, Sun X, Li M, Zhou Y, Lei Z, Zhang Y. Construction and identification of a model for HJURP gene defect expression in human embryo villus cells. CLIN EXP OBSTET GYN 2017. [DOI: 10.12891/ceog3451.2017] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
|
41
|
Haocheng L, Han W, Lei Z, Lianming Z, Defeng L, Wenhao T, Jiaming M, Zhe Z, Yuzhuo Y, Hongliang Z, Kai H, Hui J. 023 Sexual Behavior and PDE5-Is Administration Habits Among Chinese Male: Data From the 2016 Internet Survey of Sexual Life. J Sex Med 2017. [DOI: 10.1016/j.jsxm.2016.11.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
42
|
Li X, Gou C, Yao L, Lei Z, Gu T, Ren F, Wen T. Patients with HBV-related acute-on-chronic liver failure have increased concentrations of extracellular histones aggravating cellular damage and systemic inflammation. J Viral Hepat 2017; 24:59-67. [PMID: 27660136 DOI: 10.1111/jvh.12612] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/14/2016] [Accepted: 08/05/2016] [Indexed: 12/30/2022]
Abstract
Acute-on-chronic liver failure (ACLF) is the most common type of liver failure and associated with grave consequences. Systemic inflammation has been linked to its pathogenesis and outcome, but the identifiable triggers are absent. Recently, extracellular histones, especially H4, have been recognized as important mediators of cell damage in various inflammatory conditions. This study aimed to investigate whether extracellular histones have clinical implications in patients with hepatitis B virus (HBV)-related ACLF. One hundred and twelve patients with HBV-related ACLF, 90 patients with chronic hepatitis B, 88 patients with HBV-related liver cirrhosis and 40 healthy volunteers were entered into this study. Plasma histone H4 levels, cytokine profile and clinical data were obtained. Besides, patient's sera were incubated overnight with human L02 hepatocytes or monocytic U937 cells in the presence or absence of antihistone H4 antibody, and cellular damage and cytokine production were evaluated. We found that plasma histone H4 levels were greatly increased in patients with ACLF as compared with chronic hepatitis B, liver cirrhosis and healthy control subjects and were significantly associated with disease severity, systemic inflammation and outcome. Notably, ACLF patients' sera incubation decreased cultured L02 cell integrity and induced profound cytokine production in the supernatant of U937 cells. Antihistone H4 antibody treatment abrogated these adverse effects, thus confirming a cause-effect relationship between extracellular histones and organ injury/dysfunction. The data support the hypothesis that the increased extracellular histone levels in ACLF patients may aggravate disease severity by inducing cellular injury and systemic inflammation. Histone-targeted therapies may have potentially interventional value in clinical practice.
Collapse
Affiliation(s)
- X Li
- Beijing You-An Hospital, Capital Medical University, Beijing, China
| | - C Gou
- Beijing You-An Hospital, Capital Medical University, Beijing, China
| | - L Yao
- Department of Forth Cadre, Chinese PLA Army General Hospital, Beijing, China
| | - Z Lei
- Medical Research Center, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - T Gu
- Department of Oncology, First Hospital of Qinhuangdao, Qinhuangdao, Hebei Province, China
| | - F Ren
- Beijing You-An Hospital, Capital Medical University, Beijing, China
| | - T Wen
- Medical Research Center, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| |
Collapse
|
43
|
Xue HQ, Ting G, Xue JJ, Lu HY, Sun XY, Li M, Zhou Y, Lei Z, Zhang YP. Construction and identification of a model for HJURP gene defect expression in human embryo villus cells. CLIN EXP OBSTET GYN 2017; 44:434-439. [PMID: 29949288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
OBJECTIVES To construct a lentiviral vector for RNA interference (RNAi) of the HJURP gene and to identify the silencing efficiency in the human embryo villus cells and to provide a human embryo villus cells multiplication and chromosome segregation. MATERIALS AND METHODS In accordance with the study, three specific sequences of siRNA targeting HJURP gene were designed, synthesized, then the complementary DNA containing both sense and antisense oligonucleotides of the targeting sequences were annealed and inserted into the lentiviral vector.The correct clonings were confirmed by PCR and sequencing. The most effective recombinant lentivirus vector was screened, and the recombinant plasmids with the lentivirus packaging mixes were co-transfected into 293T cells to obtain packaged lentivirus particles. Then viral titer was determined. The silencing efficiency of target gene in human embryo villus cells was detected by Real-Time PCR. RESULTS DNA sequencing showed that the shRNA sequence was successfully inserted into the lentivirus vector. The recombinant lentiviral vector was successfully transfected into 293T cells. The recombinant lentivirus had a titer of 108 PFU/ml. After silencing HJURP gene in human embryo villus cells, the expression level of HJURP mRNA decreased significantly and the RNAi efficiency was greater than 70%. CONCLUSION A lentiviral shRNA expression vector targeting the HJURP gene was successfully constructed and may effectively silence the target gene at a cellular level, which provides a experimental model for the influence of HJURP gene expressing inhibition on human embryo villus cells multiplication and chromosome segregation.
Collapse
|
44
|
Hyman JD, Jiménez-Martínez J, Viswanathan HS, Carey JW, Porter ML, Rougier E, Karra S, Kang Q, Frash L, Chen L, Lei Z, O'Malley D, Makedonska N. Understanding hydraulic fracturing: a multi-scale problem. Philos Trans A Math Phys Eng Sci 2016; 374:rsta.2015.0426. [PMID: 27597789 PMCID: PMC5014299 DOI: 10.1098/rsta.2015.0426] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 04/28/2016] [Indexed: 06/06/2023]
Abstract
Despite the impact that hydraulic fracturing has had on the energy sector, the physical mechanisms that control its efficiency and environmental impacts remain poorly understood in part because the length scales involved range from nanometres to kilometres. We characterize flow and transport in shale formations across and between these scales using integrated computational, theoretical and experimental efforts/methods. At the field scale, we use discrete fracture network modelling to simulate production of a hydraulically fractured well from a fracture network that is based on the site characterization of a shale gas reservoir. At the core scale, we use triaxial fracture experiments and a finite-discrete element model to study dynamic fracture/crack propagation in low permeability shale. We use lattice Boltzmann pore-scale simulations and microfluidic experiments in both synthetic and shale rock micromodels to study pore-scale flow and transport phenomena, including multi-phase flow and fluids mixing. A mechanistic description and integration of these multiple scales is required for accurate predictions of production and the eventual optimization of hydrocarbon extraction from unconventional reservoirs. Finally, we discuss the potential of CO2 as an alternative working fluid, both in fracturing and re-stimulating activities, beyond its environmental advantages.This article is part of the themed issue 'Energy and the subsurface'.
Collapse
Affiliation(s)
- J D Hyman
- Earth and Environmental Sciences, Los Alamos National Laboratory, Los Alamos, NM, USA
| | - J Jiménez-Martínez
- Earth and Environmental Sciences, Los Alamos National Laboratory, Los Alamos, NM, USA
| | - H S Viswanathan
- Earth and Environmental Sciences, Los Alamos National Laboratory, Los Alamos, NM, USA
| | - J W Carey
- Earth and Environmental Sciences, Los Alamos National Laboratory, Los Alamos, NM, USA
| | - M L Porter
- Earth and Environmental Sciences, Los Alamos National Laboratory, Los Alamos, NM, USA
| | - E Rougier
- Earth and Environmental Sciences, Los Alamos National Laboratory, Los Alamos, NM, USA
| | - S Karra
- Earth and Environmental Sciences, Los Alamos National Laboratory, Los Alamos, NM, USA
| | - Q Kang
- Earth and Environmental Sciences, Los Alamos National Laboratory, Los Alamos, NM, USA
| | - L Frash
- Earth and Environmental Sciences, Los Alamos National Laboratory, Los Alamos, NM, USA
| | - L Chen
- Earth and Environmental Sciences, Los Alamos National Laboratory, Los Alamos, NM, USA
| | - Z Lei
- Earth and Environmental Sciences, Los Alamos National Laboratory, Los Alamos, NM, USA
| | - D O'Malley
- Earth and Environmental Sciences, Los Alamos National Laboratory, Los Alamos, NM, USA
| | - N Makedonska
- Earth and Environmental Sciences, Los Alamos National Laboratory, Los Alamos, NM, USA
| |
Collapse
|
45
|
Lei Z. 1071 Effect of neuromedin u on pig immune regulation. J Anim Sci 2016. [DOI: 10.2527/jam2016-1071] [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
|
46
|
Ehlers K, Lin B, Li X, Pagidas K, Lei Z. Dysregulation of the hippo pathway in selective theca cell phosphatase and tensin homolog (tPten) mutant mice exhibiting a Polycystic Ovarian Syndrome (PCOS)-like phenotype. Fertil Steril 2016. [DOI: 10.1016/j.fertnstert.2016.07.268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
|
47
|
Liao W, Chen L, Yu B, Lei Z, Wu X, Yang J, Ren J. Cell-based evaluation of a novel Dictyophora indusiata polysaccharide against oxidative-induced erythrocyte hemolysis. Cell Mol Biol (Noisy-le-grand) 2016; 62:38-44. [PMID: 26828985] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2015] [Accepted: 01/03/2016] [Indexed: 06/05/2023]
Abstract
The protective effect of a polysaccharide from Dictyophora indusiata(DP1)against oxidative hemolysis was comprehensively evaluated. The 2, 2-azobis (2-amidino-propane) dihydrochloride (AAPH)-induced erythrocyte hemolysis assay showed that DP1 exhibited excellent anti-hemolytic activity(87.4% hemolysis suppression ratio at 20 nmol/mL). Also, the formation of conjugated diene induced by cupric chloride (CuCl2) in plasma was significantly inhibited by DP1. Besides, DP1 could effectively inhibit AAPH-induced overproduction of reactive oxygen species (81.5% inhibition at 20 nmol/mL) and alleviated the enhancement of intracellular antioxidant enzymes including superoxide dismutase(SOD), glutathione peroxidase (GPX) and catalase (CAT) activities. Also, the malondialdehyde (MDA) formation caused by oxidative stress was suppressed by 57.0% at DP1 concentration of 20 nmol/mL. Taken together, the possible intracellular antioxidant detoxifying mechanism of DP1 was probably via preserving the activities of the antioxidant enzymes (SOD, GPx and CAT) as well as inhibiting lipid peroxidation, and thus alleviated erythrocytes oxidation and plasma oxidation.
Collapse
Affiliation(s)
- W Liao
- South China University of Technology College of Light Industry and Food Sciences Guangzhou China
| | - L Chen
- South China University of Technology College of Light Industry and Food Sciences Guangzhou China
| | - B Yu
- Zhengzhou University School of Pharmaceutical Sciences Zhengzhou China
| | - Z Lei
- South China University of Technology College of Light Industry and Food Sciences Guangzhou China
| | - X Wu
- South China University of Technology College of Light Industry and Food Sciences Guangzhou China
| | - J Yang
- South China University of Technology College of Light Industry and Food Sciences Guangzhou China
| | - J Ren
- South China University of Technology College of Light Industry and Food Sciences Guangzhou China
| |
Collapse
|
48
|
Lei Z, Gao F, Bao P, Wang Z, Zhang J. [Design and Fabrication of a Device for Intraperitoneal Treatment of Pediatric Hernia]. Sheng Wu Yi Xue Gong Cheng Xue Za Zhi 2015; 32:675-679. [PMID: 26485998] [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: 06/05/2023]
Abstract
For treatment of pediatric inguinal hernia, we fabricated a device, i.e. so called "filling type pediatric hernia sac", which treats the problem from the abdominal cavity, through the abdominal and is a self-adaptive closer, using synthetic material. The device includes filling rack, self-adaptive umbrella support bar, bottom piece, outside pulling line and device fixing lines. The filling rack is composed of 2 concentric circles of 3.0 cm diameter with peripherally fixed together and can be pulled into the shapes of a ball or an olive. The supporting bar is structured of 3 pieces with 0.5 cm wide, 4.0 cm long, cross-fixed on top of the filling rack. The bottom piece is in a circular structure with a diameter of 3.0 cm, and it is connected to the filling rack bottom. Adjust positioning stay outside the fixed on the top of the device are connected at one end, and the other end free through filling the top frame connected with the bottom slice of central fixation. By using this device, we treated 37 pediatric inguinal hernia cases with 38 side-inguinal hernia successfully. The mean duration of post-operation follow-ups was 14.6 ± 5.89 months, without hernia recurrence, obvious scar and hard sections of inguinal region. This device could provide a convenient, safe and effective plugging technology for children's pediatric hernia.
Collapse
|
49
|
Wang P, Yang L, Li H, Lei Z, Yang X, Liu C, Jiang H, Zhang L, Zhou Z, Reinhardt JD, He C. Effects of whole-body vibration training with quadriceps strengthening exercise on functioning and gait parameters in patients with medial compartment knee osteoarthritis: a randomised controlled preliminary study. Physiotherapy 2015; 102:86-92. [PMID: 26111989 DOI: 10.1016/j.physio.2015.03.3720] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [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: 07/28/2014] [Accepted: 03/05/2015] [Indexed: 02/05/2023]
Abstract
OBJECTIVE To compare the effects of whole-body vibration training (WBVT) with quadriceps strengthening exercise (QSE) with QSE alone on functioning and gait parameters in patients with medial compartment knee osteoarthritis. DESIGN Randomised controlled preliminary study. SETTING Department of Rehabilitation Medicine, West China Hospital, Chengdu, Sichuan, People's Republic of China. SUBJECTS Thirty-nine patients with medial compartment knee osteoarthritis. INTERVENTIONS Participants were assigned at random to one of two groups. MAIN MEASURES Visual analogue scale (VAS) for pain, Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC), timed up and go test (TUG), 6-minute walk distance test (6MWD), and three-dimensional gait analysis during level walking at baseline, 12 weeks and 16 weeks (follow-up). RESULTS Compared with baseline, significant improvements in VAS, all WOMAC scales, TUG, 6MWD and all spatiotemporal parameters were seen in both the WBVT+QSE group and the QSE alone group at 12 and 16 weeks. However, the WBVT+QSE group showed greater improvements than the QSE alone group in WOMAC scales (physical function), TUG, 6MWD and cadence at 12 weeks. No differences were found between the WBVT+QSE and QSE alone groups in VAS, WOMAC scales (pain, stiffness), kinematic and kinetic gait parameters, and other spatiotemporal parameters at 12 weeks and 16 weeks. CONCLUSION Over a 3-month period, WBVT in combination with QSE improved symptoms, physical function and spatiotemporal parameters in patients with medial compartment knee osteoarthritis, and led to greater improvement than QSE alone in WOMAC scales (physical function), TUG, 6MWD and cadence.
Collapse
Affiliation(s)
- P Wang
- Rehabilitation Medicine Centre, West China Hospital, Sichuan University, Chengdu, Sichuan, People's Republic of China; Key Laboratory of Rehabilitation Medicine in Sichuan, Chengdu, Sichuan, People's Republic of China
| | - L Yang
- Rehabilitation Medicine Centre, West China Hospital, Sichuan University, Chengdu, Sichuan, People's Republic of China; Key Laboratory of Rehabilitation Medicine in Sichuan, Chengdu, Sichuan, People's Republic of China
| | - H Li
- Institute for Disaster Management and Reconstruction of Sichuan University and Hong Kong Polytechnic University, Chengdu, Sichuan, People's Republic of China
| | - Z Lei
- Rehabilitation Medicine Centre, West China Hospital, Sichuan University, Chengdu, Sichuan, People's Republic of China
| | - X Yang
- Rehabilitation Medicine Centre, West China Hospital, Sichuan University, Chengdu, Sichuan, People's Republic of China; Key Laboratory of Rehabilitation Medicine in Sichuan, Chengdu, Sichuan, People's Republic of China
| | - C Liu
- Rehabilitation Medicine Centre, West China Hospital, Sichuan University, Chengdu, Sichuan, People's Republic of China; Key Laboratory of Rehabilitation Medicine in Sichuan, Chengdu, Sichuan, People's Republic of China
| | - H Jiang
- Rehabilitation Medicine Centre, West China Hospital, Sichuan University, Chengdu, Sichuan, People's Republic of China
| | - L Zhang
- Rehabilitation Medicine Centre, West China Hospital, Sichuan University, Chengdu, Sichuan, People's Republic of China
| | - Z Zhou
- Department of Orthopaedics, West China Hospital, Sichuan University, Chengdu, Sichuan, People's Republic of China
| | - J D Reinhardt
- Institute for Disaster Management and Reconstruction of Sichuan University and Hong Kong Polytechnic University, Chengdu, Sichuan, People's Republic of China; Swiss Paraplegic Research, Nottwil, Lucerne, Switzerland; Department of Health Sciences and Health Policy, University of Lucerne, Lucerne, Switzerland
| | - C He
- Rehabilitation Medicine Centre, West China Hospital, Sichuan University, Chengdu, Sichuan, People's Republic of China; Key Laboratory of Rehabilitation Medicine in Sichuan, Chengdu, Sichuan, People's Republic of China.
| |
Collapse
|
50
|
Wang L, Yang H, Lei Z, Zhao J, Chen Y, Chen P, Li C, Zeng Y, Liu Z, Liu X, Zhang HT. Repression of TIF1γ by SOX2 promotes TGF-β-induced epithelial-mesenchymal transition in non-small-cell lung cancer. Oncogene 2015; 35:867-77. [PMID: 25961934 DOI: 10.1038/onc.2015.141] [Citation(s) in RCA: 59] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2014] [Revised: 03/14/2015] [Accepted: 03/20/2015] [Indexed: 12/19/2022]
Abstract
TIF1γ is a novel regulator of transforming growth factor (TGF)-β/Smad signaling. Our previous studies show that dysregulated expression of transcriptional intermediary factor 1 γ (TIF1γ) and abnormal TGF-β/Smad signaling are implicated in non-small-cell lung cancer (NSCLC) separately. However, how TIF1γ contributes to NSCLC by controlling TGF-β/Smad signaling is poorly understood. Here, we investigated the mechanistic role of TIF1γ in TGF-β-induced epithelial-mesenchymal transition (EMT), as well as a link between TIF1γ and SOX2 in NSCLC. We show that TIF1γ is a downstream target of SOX2 in NSCLC cells. SOX2 overexpression negatively regulated TIF1γ promoter activity and thereby attenuated TIF1γ mRNA and protein expression levels; SOX2 knockdown significantly enhanced TIF1γ promoter activity and augmented TIF1γ expression. Moreover, TIF1γ mRNA expression was downregulated in human NSCLC tissues and negatively correlated with SOX2 protein, which was upregulated in NSCLC tissues. Importantly, knockdown of TIF1γ or SOX2 overexpression augmented SMAD4 (human Mad (mothers against decapentaplegic)-related homologous protein 4)-dependent transcriptional responses, and enhanced TGF-β-induced EMT and human NSCLC cell invasion; knockdown of SOX2 impaired TGF-β-induced EMT and NSCLC cell invasion. In an in vivo model of metastasis, knockdown of TIF1γ promotes NSCLC cell metastasis. In addition, our data suggested that TIF1γ inhibited TGF-β-induced EMT through competing with SMAD4 in NSCLC cells. Taken together, our findings reveal a new mechanism by which SOX2-mediated transcription repression of TIF1γ promotes TGF-β-induced EMT in NSCLC.
Collapse
Affiliation(s)
- L Wang
- Soochow University Laboratory of Cancer Molecular Genetics, Medical College of Soochow University, Suzhou, China.,Suzhou Key Laboratory for Molecular Cancer Genetics, Suzhou, China
| | - H Yang
- Soochow University Laboratory of Cancer Molecular Genetics, Medical College of Soochow University, Suzhou, China.,Suzhou Key Laboratory for Molecular Cancer Genetics, Suzhou, China
| | - Z Lei
- Soochow University Laboratory of Cancer Molecular Genetics, Medical College of Soochow University, Suzhou, China.,Suzhou Key Laboratory for Molecular Cancer Genetics, Suzhou, China
| | - J Zhao
- Suzhou Key Laboratory for Molecular Cancer Genetics, Suzhou, China.,Department of Thoracic and Cardiovascular Surgery, First Affiliated Hospital of Soochow University, Medical College of Soochow University, Suzhou, China
| | - Y Chen
- Department of Thoracic and Cardiovascular Surgery, Second Affiliated Hospital of Soochow University, Medical College of Soochow University, Suzhou, China
| | - P Chen
- Systems Biology Laboratory, Research Programs Unit, Genome-Scale Biology, and Institute of Biomedicine, Biochemistry and Developmental Biology, Faculty of Medicine, University of Helsinki, Haartmaninkatu 8, Helsinki, Finland
| | - C Li
- Suzhou Key Laboratory for Molecular Cancer Genetics, Suzhou, China.,Department of Thoracic and Cardiovascular Surgery, First Affiliated Hospital of Soochow University, Medical College of Soochow University, Suzhou, China
| | - Y Zeng
- Suzhou Key Laboratory for Molecular Cancer Genetics, Suzhou, China.,Department of Thoracic and Cardiovascular Surgery, First Affiliated Hospital of Soochow University, Medical College of Soochow University, Suzhou, China
| | - Z Liu
- Suzhou Key Laboratory for Molecular Cancer Genetics, Suzhou, China.,Department of Thoracic and Cardiovascular Surgery, First Affiliated Hospital of Soochow University, Medical College of Soochow University, Suzhou, China
| | - X Liu
- Soochow University Laboratory of Cancer Molecular Genetics, Medical College of Soochow University, Suzhou, China.,Suzhou Key Laboratory for Molecular Cancer Genetics, Suzhou, China
| | - H-T Zhang
- Soochow University Laboratory of Cancer Molecular Genetics, Medical College of Soochow University, Suzhou, China.,Suzhou Key Laboratory for Molecular Cancer Genetics, Suzhou, China
| |
Collapse
|