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Han X, Ning Y, Dou X, Wang Y, Shan Q, Shi K, Wang Z, Ding C, Hao M, Wang K, Peng M, Kuang H, Yang Q, Sang X, Cao G. Cornus officinalis with high pressure wine steaming enhanced anti-hepatic fibrosis: Possible through SIRT3-AMPK axis. J Pharm Anal 2024; 14:100927. [PMID: 38646453 PMCID: PMC11024659 DOI: 10.1016/j.jpha.2023.12.017] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Revised: 12/07/2023] [Accepted: 12/19/2023] [Indexed: 04/23/2024] Open
Abstract
Cornus officinalis, a medicinal and edible plant known for its liver-nourishing properties, has shown promise in inhibiting the activation of hepatic stellate cells (HSCs), crucial indicators of hepatic fibrosis, especially when processed by high pressure wine steaming (HPWS). Herein, this study aims to investigate the regulatory effects of cornus officinalis, both in its raw and HPWS forms, on inflammation and apoptosis in liver fibrosis and their underlying mechanisms. In vivo liver fibrosis models were established by subcutaneous injection of CCl4, while in vitro HSCs were exposed to transforming growth factor-β (TGF-β). These findings demonstrated that cornus officinalis with HPWS conspicuously ameliorated histopathological injury, reduced the release of proinflammatory factors, and decreased collagen deposition in CCl4-induced rats compared to its raw form. Utilizing ultra-high-performance liquid chromatography coupled with quadrupole time-of-flight mass spectrometer (UHPLC-QTOF-MS) combined with network analysis, we identified that the pharmacological effects of the changed components of cornus officinalis before and after HPWS, primarily centered on the adenosine phosphate (AMP)-activated protein kinase (AMPK) pathway. Of note, cornus officinalis activated AMPK and Sirtuin 3 (SIRT3), promoting the apoptosis of activated HSCs through the caspase cascade by regulating caspase3, caspase6 and caspase9. siRNA experiments showed that cornus officinalis could regulate AMPK activity and its mediated-apoptosis through SIRT3. In conclusion, cornus officinalis exhibited the ability to reduce inflammation and apoptosis, with the SIRT3-AMPK signaling pathway identified as a potential mechanism underlying the synergistic effect of cornus officinalis with HPWS on anti-liver fibrosis.
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Affiliation(s)
| | | | | | | | - Qiyuan Shan
- School of Pharmacy, Zhejiang Chinese Medical University, Hangzhou, China
| | - Kao Shi
- School of Pharmacy, Zhejiang Chinese Medical University, Hangzhou, China
| | - Zeping Wang
- School of Pharmacy, Zhejiang Chinese Medical University, Hangzhou, China
| | - Chuan Ding
- School of Pharmacy, Zhejiang Chinese Medical University, Hangzhou, China
| | - Min Hao
- School of Pharmacy, Zhejiang Chinese Medical University, Hangzhou, China
| | - Kuilong Wang
- School of Pharmacy, Zhejiang Chinese Medical University, Hangzhou, China
| | - Mengyun Peng
- School of Pharmacy, Zhejiang Chinese Medical University, Hangzhou, China
| | - Haodan Kuang
- School of Pharmacy, Zhejiang Chinese Medical University, Hangzhou, China
| | - Qiao Yang
- School of Pharmacy, Zhejiang Chinese Medical University, Hangzhou, China
| | - Xianan Sang
- School of Pharmacy, Zhejiang Chinese Medical University, Hangzhou, China
| | - Gang Cao
- School of Pharmacy, Zhejiang Chinese Medical University, Hangzhou, China
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Ning Y, Dou X, Wang Z, Shi K, Wang Z, Ding C, Sang X, Zhong X, Shao M, Han X, Cao G. SIRT3: A potential therapeutic target for liver fibrosis. Pharmacol Ther 2024; 257:108639. [PMID: 38561088 DOI: 10.1016/j.pharmthera.2024.108639] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2023] [Revised: 03/11/2024] [Accepted: 03/19/2024] [Indexed: 04/04/2024]
Abstract
Sirtuin3 (SIRT3) is a nicotinamide adenine dinucleotide (NAD+)-dependent protein deacetylase located in the mitochondria, which mainly regulates the acetylation of mitochondrial proteins. In addition, SIRT3 is involved in critical biological processes, including oxidative stress, inflammation, DNA damage, and apoptosis, all of which are closely related to the progression of liver disease. Liver fibrosis characterized by the deposition of extracellular matrix is a result of long termed or repeated liver damage, frequently accompanied by damaged hepatocytes, the recruitment of inflammatory cells, and the activation of hepatic stellate cells. Based on the functions and pharmacology of SIRT3, we will review its roles in liver fibrosis from three aspects: First, the main functions and pharmacological effects of SIRT3 were investigated based on its structure. Second, the roles of SIRT3 in major cells in the liver were summarized to reveal its mechanism in developing liver fibrosis. Last, drugs that regulate SIRT3 to prevent and treat liver fibrosis were discussed. In conclusion, exploring the pharmacological effects of SIRT3, especially in the liver, may be a potential strategy for treating liver fibrosis.
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Affiliation(s)
- Yan Ning
- School of Pharmacy, Zhejiang Chinese Medical University, Hangzhou, China
| | - Xinyue Dou
- School of Pharmacy, Zhejiang Chinese Medical University, Hangzhou, China
| | - Zhichao Wang
- School of Pharmacy, Zhejiang Chinese Medical University, Hangzhou, China
| | - Kao Shi
- School of Pharmacy, Zhejiang Chinese Medical University, Hangzhou, China
| | - Zeping Wang
- School of Pharmacy, Zhejiang Chinese Medical University, Hangzhou, China
| | - Chuan Ding
- School of Pharmacy, Zhejiang Chinese Medical University, Hangzhou, China
| | - Xianan Sang
- School of Pharmacy, Zhejiang Chinese Medical University, Hangzhou, China
| | - Xiang Zhong
- School of Pharmacy, Zhejiang Chinese Medical University, Hangzhou, China
| | - Meiyu Shao
- School of Pharmacy, Zhejiang Chinese Medical University, Hangzhou, China
| | - Xin Han
- School of Pharmacy, Zhejiang Chinese Medical University, Hangzhou, China.
| | - Gang Cao
- School of Pharmacy, Zhejiang Chinese Medical University, Hangzhou, China; The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China.
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Cao G, Hu S, Ning Y, Dou X, Ding C, Wang L, Wang Z, Sang X, Yang Q, Shi J, Hao M, Han X. Traditional Chinese medicine in osteoporosis: from pathogenesis to potential activity. Front Pharmacol 2024; 15:1370900. [PMID: 38628648 PMCID: PMC11019011 DOI: 10.3389/fphar.2024.1370900] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Accepted: 03/11/2024] [Indexed: 04/19/2024] Open
Abstract
Osteoporosis characterized by decreased bone density and mass, is a systemic bone disease with the destruction of microstructure and increase in fragility. Osteoporosis is attributed to multiple causes, including aging, inflammation, diabetes mellitus, and other factors induced by the adverse effects of medications. Without treatment, osteoporosis will further progress and bring great trouble to human life. Due to the various causes, the treatment of osteoporosis is mainly aimed at improving bone metabolism, inhibiting bone resorption, and promoting bone formation. Although the currently approved drugs can reduce the risk of fragility fractures in individuals, a single drug has limitations in terms of safety and effectiveness. By contrast, traditional Chinese medicine (TCM), a characteristic discipline in China, including syndrome differentiation, Chinese medicine prescription, and active ingredients, shows unique advantages in the treatment of osteoporosis and has received attention all over the world. Therefore, this review summarized the pathogenic factors, pathogenesis, therapy limitations, and advantages of TCM, aiming at providing new ideas for the prevention and treatment of OP.
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Affiliation(s)
- Gang Cao
- Innovative Institute of Chinese Medicine and Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
- School of Pharmacy, Zhejiang Chinese Medical University, Hangzhou, China
| | - ShaoQi Hu
- School of Pharmacy, Zhejiang Chinese Medical University, Hangzhou, China
| | - Yan Ning
- School of Pharmacy, Zhejiang Chinese Medical University, Hangzhou, China
| | - Xinyue Dou
- School of Pharmacy, Zhejiang Chinese Medical University, Hangzhou, China
| | - Chuan Ding
- School of Pharmacy, Zhejiang Chinese Medical University, Hangzhou, China
| | - Lu Wang
- School of Pharmacy, Zhejiang Chinese Medical University, Hangzhou, China
| | - Zeping Wang
- School of Pharmacy, Zhejiang Chinese Medical University, Hangzhou, China
| | - Xianan Sang
- School of Pharmacy, Zhejiang Chinese Medical University, Hangzhou, China
| | - Qiao Yang
- School of Pharmacy, Zhejiang Chinese Medical University, Hangzhou, China
| | - Jiangnan Shi
- School of Pharmacy, Zhejiang Chinese Medical University, Hangzhou, China
| | - Min Hao
- School of Pharmacy, Zhejiang Chinese Medical University, Hangzhou, China
| | - Xin Han
- School of Pharmacy, Zhejiang Chinese Medical University, Hangzhou, China
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Dou X, Xie X, Liang S, Fang G. Low-current-density stability of vanadium-based cathodes for aqueous zinc-ion batteries. Sci Bull (Beijing) 2024; 69:833-845. [PMID: 38302333 DOI: 10.1016/j.scib.2024.01.029] [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: 09/13/2023] [Revised: 12/25/2023] [Accepted: 01/18/2024] [Indexed: 02/03/2024]
Abstract
Vanadium-based cathodes have received widespread attention in the field of aqueous zinc-ion batteries, presenting a promising prospect for stationary energy storage applications. However, the rapid capacity decay at low current densities has hampered their development. In particular, capacity stability at low current densities is a requisite in numerous practical applications, typically encompassing peak load regulation of the electricity grid, household energy storage systems, and uninterrupted power supplies. Despite possessing notably high specific capacities, vanadium-based materials exhibit severe instability at low current densities. Moreover, the issue of stabilizing electrode reactions at these densities for vanadium-based materials has been explored insufficiently in existing research. This review aims to investigate the matter of stability in vanadium-based materials at low current densities by concentrating on the mechanisms of capacity fading and optimization strategies. It proposes a comprehensive approach that includes electrolyte optimization, electrode modulation, and electrochemical operational conditions. Finally, we presented several crucial prospects for advancing the practical development of vanadium-based aqueous zinc-ion batteries.
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Affiliation(s)
- Xinyue Dou
- School of Materials Science and Engineering, Key Laboratory of Electronic Packaging and Advanced Functional Materials of Hunan Province, Central South University, Changsha 410083, China
| | - Xuefang Xie
- College of Physical Science and Technology, Xinjiang University, Urumqi 830017, China.
| | - Shuquan Liang
- School of Materials Science and Engineering, Key Laboratory of Electronic Packaging and Advanced Functional Materials of Hunan Province, Central South University, Changsha 410083, China
| | - Guozhao Fang
- School of Materials Science and Engineering, Key Laboratory of Electronic Packaging and Advanced Functional Materials of Hunan Province, Central South University, Changsha 410083, China.
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Ding C, Wang Z, Dou X, Yang Q, Ning Y, Kao S, Sang X, Hao M, Wang K, Peng M, Zhang S, Han X, Cao G. Farnesoid X receptor: From Structure to Function and Its Pharmacology in Liver Fibrosis. Aging Dis 2023:AD.2023.0830. [PMID: 37815898 DOI: 10.14336/ad.2023.0830] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Accepted: 08/30/2023] [Indexed: 10/12/2023] Open
Abstract
The farnesoid X receptor (FXR), a ligand-activated transcription factor, plays a crucial role in regulating bile acid metabolism within the enterohepatic circulation. Beyond its involvement in metabolic disorders and immune imbalances affecting various tissues, FXR is implicated in microbiota modulation, gut- to-brain communication, and liver disease. The liver, as a pivotal metabolic and detoxification organ, is susceptible to damage from factors such as alcohol, viruses, drugs, and high-fat diets. Chronic or recurrent liver injury can culminate in liver fibrosis, which, if left untreated, may progress to cirrhosis and even liver cancer, posing significant health risks. However, therapeutic options for liver fibrosis remain limited in terms of FDA- approved drugs. Recent insights into the structure of FXR, coupled with animal and clinical investigations, have shed light on its potential pharmacological role in hepatic fibrosis. Progress has been achieved in both fundamental research and clinical applications. This review critically examines recent advancements in FXR research, highlighting challenges and potential mechanisms underlying its role in liver fibrosis treatment.
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Affiliation(s)
- Chuan Ding
- School of Pharmacy, Zhejiang Chinese Medical University, Hangzhou, China
- Jinhua Institute, Zhejiang Chinese Medical University, Jinhua, China
| | - Zeping Wang
- School of Pharmacy, Zhejiang Chinese Medical University, Hangzhou, China
| | - Xinyue Dou
- School of Pharmacy, Zhejiang Chinese Medical University, Hangzhou, China
| | - Qiao Yang
- School of Pharmacy, Zhejiang Chinese Medical University, Hangzhou, China
| | - Yan Ning
- School of Pharmacy, Zhejiang Chinese Medical University, Hangzhou, China
| | - Shi Kao
- School of Pharmacy, Zhejiang Chinese Medical University, Hangzhou, China
| | - Xianan Sang
- School of Pharmacy, Zhejiang Chinese Medical University, Hangzhou, China
| | - Min Hao
- School of Pharmacy, Zhejiang Chinese Medical University, Hangzhou, China
| | - Kuilong Wang
- School of Pharmacy, Zhejiang Chinese Medical University, Hangzhou, China
| | - Mengyun Peng
- School of Pharmacy, Zhejiang Chinese Medical University, Hangzhou, China
| | - Shuosheng Zhang
- College of Chinese Materia Medica and Food Engineering, Shanxi University of Chinese Medicine, Jinzhong, China
| | - Xin Han
- School of Pharmacy, Zhejiang Chinese Medical University, Hangzhou, China
- Jinhua Institute, Zhejiang Chinese Medical University, Jinhua, China
| | - Gang Cao
- School of Pharmacy, Zhejiang Chinese Medical University, Hangzhou, China
- Jinhua Institute, Zhejiang Chinese Medical University, Jinhua, China
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Guo Q, Liu J, Dou X, Zhu K, Shi P, Zhang Y, Li S, Feng R, Yue J. Camrelizumab with Chemoradiotherapy for Locally Advanced Biliary Tract Cancer: Preliminary Results from A Phase II Study. Int J Radiat Oncol Biol Phys 2023; 117:e355. [PMID: 37785226 DOI: 10.1016/j.ijrobp.2023.06.2434] [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) For locally advanced biliary tract cancer (BTC), capecitabine-based chemoradiotherapy (CRT) is commonly used but has limited benefits. Immunotherapy is potentially effective for BTC and may be synergized with CRT. Followed by gemcitabine and cisplatin (GP) consolidation chemotherapy (CT), we evaluated the safety and efficacy of combined camrelizumab and capecitabine-based CRT for locally advanced BTC. MATERIALS/METHODS Patients had stage II-III (T4N0M0, T1-4N+M0) BTC (per the 7th [2010] edition of the American Joint Committee on Cancer staging system) were eligible for CRT (capecitabine plus [50-60 Gy] radiotherapy), to be followed by GP CT. Camrelizumab was given concurrently with CRT. Safety was defined as the incidence and severity of adverse events (AEs), while efficacy was defined as overall survival (OS), progression-free survival (PFS), objective response rate (ORR) and disease control rate (DCR). RESULTS Ten patients completed the planned treatment. None experienced grade ≥3 treatment-related AEs during CRT. Grade ≥3 immune-related AEs occurred in 2 of 10 patients (20%) only during GP CT. The mean OS time was 18.2 months (95% confidence interval [CI] 12.9m-23.5m) while the median OS time was 14.1 months (95% CI 10.1m-18.1m). OS rates were 100%, 59%, 44% at 6 months, 1 year and 2 years, respectively. The ORR was 30% while the DCR was 90%. Two patients (20%) obtained OS over 2 years with partial response (25.9m, 29.1m). Median PFS time was 14.1 months (95% CI 9.3m-18.9m). CONCLUSION Camrelizumab in combination with concurrent CRT was well tolerated and did not impair delivery of CRT in patients with locally advanced BTC.
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Affiliation(s)
- Q Guo
- Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China; Shandong Cancer Hospital affiliated to Shandong First Medical University, Jinan, Shandong, China
| | - J Liu
- Shandong Cancer Hospital affiliated to Shandong First Medical University, Jinan, Shandong, China
| | - X Dou
- Shandong Cancer Hospital affiliated to Shandong First Medical University, Jinan, Shandong, China
| | - K Zhu
- Shandong Cancer Hospital affiliated to Shandong First Medical University, Jinan, Shandong, China
| | - P Shi
- Shandong Cancer Hospital affiliated to Shandong First Medical University, Jinan, Shandong, China
| | - Y Zhang
- Shandong Cancer Hospital affiliated to Shandong First Medical University, Jinan, Shandong, China
| | - S Li
- Shandong Cancer Hospital affiliated to Shandong First Medical University, Jinan, Shandong, China
| | - R Feng
- Shandong Cancer Hospital affiliated to Shandong First Medical University, Jinan, Shandong, China
| | - J Yue
- Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China; Shandong Cancer Hospital affiliated to Shandong First Medical University, Jinan, Shandong, China
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Lyu JJ, Yan BY, Feng Y, Meng X, Zhao X, Dou X, Liang XF, Wang FZ, Xu AQ, Zhang L. [Persistence follow-up of immune memory to hepatitis B vaccine among infants with non- and low-response to primary vaccination after revaccination with three doses]. Zhonghua Yu Fang Yi Xue Za Zhi 2023; 57:732-735. [PMID: 37165820 DOI: 10.3760/cma.j.cn112150-20220511-00468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
This study followed up the immune memory after 3-dose revaccination among infants with non-and low-response following primary hepatitis B (HepB) vaccination. About 120 children without self-booster doses were finally included who had anti-HBs<10 mIU/ml (anti-HBs negative) at the time of follow-up, of whom 86 children completed blood sampling and anti-HBs testing. Before the challenge dose, all 86 children were negative for anti-HBs, and the GMC of anti-HBs was<10 mIU/ml. The seropositive conversion rate of anti-HBs was 100% and the GMC of anti-HBs was 886.11 (95%CI: 678.15-1 157.84) mIU/ml after the challenge dose. Compared with those with GMC<7 mIU/ml before the challenge dose, infants with GMC>7 mIU/ml had a higher anti-HBs level after the challenge dose. The β value (95%CI) was 0.82 (0.18-1.46) (P=0.012). Compared with those with GMC<1 000 mIU/ml at primary vaccination, infants with GMC≥1 000 mIU/ml had a higher anti-HBs level after the challenge dose. The β value (95%CI) was 0.78 (0.18-1.38)(P=0.012). The results showed a stronger immune memory was found at 9 years after revaccination among infants with non-and low-response to HepB.
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Affiliation(s)
- J J Lyu
- Expanded Program Immunizatin Division, Shandong Provincial Center for Disease Control and Prevention, Jinan 250014, China School of Pubic Health, Cheeloo College of Medicine, Shandong University, Jinan 250012, China
| | - B Y Yan
- Expanded Program Immunizatin Division, Shandong Provincial Center for Disease Control and Prevention, Jinan 250014, China
| | - Y Feng
- Expanded Program Immunizatin Division, Shandong Provincial Center for Disease Control and Prevention, Jinan 250014, China
| | - X Meng
- Expanded Program Immunizatin Division, Shandong Provincial Center for Disease Control and Prevention, Jinan 250014, China
| | - X Zhao
- School of Pubic Health, Cheeloo College of Medicine, Shandong University, Jinan 250012, China
| | - X Dou
- School of Pubic Health, Cheeloo College of Medicine, Shandong University, Jinan 250012, China
| | - X F Liang
- School of Medicine, Jinan University, Guangzhou 510632, China
| | - F Z Wang
- Center for National Immunization Program, Chinese Center for Disease Control and Prevention, Beijing 100050, China
| | - A Q Xu
- Expanded Program Immunizatin Division, Shandong Provincial Center for Disease Control and Prevention, Jinan 250014, China School of Pubic Health, Cheeloo College of Medicine, Shandong University, Jinan 250012, China
| | - L Zhang
- Expanded Program Immunizatin Division, Shandong Provincial Center for Disease Control and Prevention, Jinan 250014, China School of Pubic Health, Cheeloo College of Medicine, Shandong University, Jinan 250012, China
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Liu N, Wang Y, Wang Z, He Q, Liu Y, Dou X, Yin Z, Li Y, Zhu H, Yuan X. Conjugating AIE-featured AuAg nanoclusters with highly luminescent carbon dots for improved visible-light-driven antibacterial activity. Nanoscale 2022; 14:8183-8191. [PMID: 35621160 DOI: 10.1039/d2nr01550a] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Metal nanoclusters (NCs) have emerged as novel antibacterial agents featuring broad-spectrum antibacterial activity without drug resistance for bacteria, but suffer from fast antibacterial invalidation due to their consumption by bacteria. Herein we report the design of a visible-light-driven photodynamic antibacterial agent based on conjugating aggregation-induced emission (AIE)-featured AuAg NCs with highly luminescent carbon dots (CDs). The conjugation of CDs with AuAg NCs could not only enhance the visible-light harvest, but also promote charge carrier generation/separation via charge/energy transfer, leading to the production of abundant reactive oxygen species (ROS) for bacterial killing under visible-light irradiation. Consequently, the as-obtained CDs@AuAg NCs display excellent photodynamic antibacterial activity against both Gram-positive and Gram-negative bacteria with 4-5 orders of magnitude reduction in colony forming units, which is different from the conventional metal NC-based analogue relying on self-consumption for bacterial killing. In addition, the CDs@AuAg NCs are found to be free of cytotoxicity; the ROS capture experiments indicate that the photoproduced H2O2 by CDs@AuAg NCs is the main active species for bacterial killing, accounting for nearly 48% of the total antibacterial efficacy. This study provides a paradigm for the design of metal NC-based photodynamic antibacterial agents for diverse bactericidal applications.
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Affiliation(s)
- Naiwei Liu
- College of Materials Science and Engineering, Qingdao University of Science and Technology (QUST), 53 Zhengzhou Rd., Shibei District, Qingdao 266042, P. R. China.
| | - Yichun Wang
- College of Materials Science and Engineering, Qingdao University of Science and Technology (QUST), 53 Zhengzhou Rd., Shibei District, Qingdao 266042, P. R. China.
| | - Ziping Wang
- Weifang University of Science and Technology, Shandong Peninsula Engineering Research Center of Comprehensive Brine Utilization, Weifang 262700, P. R. China
| | - Qiuxia He
- College of Materials Science and Engineering, Qingdao University of Science and Technology (QUST), 53 Zhengzhou Rd., Shibei District, Qingdao 266042, P. R. China.
| | - Yong Liu
- College of Materials Science and Engineering, Qingdao University of Science and Technology (QUST), 53 Zhengzhou Rd., Shibei District, Qingdao 266042, P. R. China.
| | - Xinyue Dou
- College of Materials Science and Engineering, Qingdao University of Science and Technology (QUST), 53 Zhengzhou Rd., Shibei District, Qingdao 266042, P. R. China.
| | - Zhengmao Yin
- College of Materials Science and Engineering, Qingdao University of Science and Technology (QUST), 53 Zhengzhou Rd., Shibei District, Qingdao 266042, P. R. China.
| | - Yang Li
- Jangsu Key Laboratory of Micro and Nano Heat Fluid Flow Technology and Energy Application, School of Physical Science and Technology, Suzhou University of Science and Technology, Suzhou 215009, P. R. China
| | - Haiguang Zhu
- College of Materials Science and Engineering, Qingdao University of Science and Technology (QUST), 53 Zhengzhou Rd., Shibei District, Qingdao 266042, P. R. China.
| | - Xun Yuan
- College of Materials Science and Engineering, Qingdao University of Science and Technology (QUST), 53 Zhengzhou Rd., Shibei District, Qingdao 266042, P. R. China.
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Meng X, Lyu JJ, Feng Y, Dou X, Zhao X, Liang XF, Wang FZ, Xu AQ, Yan BY, Zhang L. [Anti-HBs persistence after primary vaccination with three doses of 5 μg recombinant hepatitis B vaccine among normal and high-responder infants: 10-year of follow-up]. Zhonghua Yu Fang Yi Xue Za Zhi 2022; 56:794-799. [PMID: 35785861 DOI: 10.3760/cma.j.cn112150-20210630-00620] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Objective: Assess the 10-year Immune persistence and the predictors after primary vaccination hepatitis B vaccine (HepB) among normal and high-responder infants. Methods: A total of 1 838 Infants of 7-12 months old located in Jinan, Weifang, Yantai and Weihai of Shandong Province who were induced normal or high antibody response (anti-HBs titer ≥ 100 mIU/ml) after primary vaccination (three dose with 0-1-6 procedure) with 5 μg recombinant HepB among newborns were included in the study, in 2009. 3 ml of venous blood samples were collected at baseline survey (T0) and antibodies against hepatitis B surface antigen (anti-HBs), antibody against hepatitis B core antigen (anti-HBc) and hepatitis B surface antigen (HBsAg) were detected using chemiluminescence microparticle immunoassay (CMIA) method. A self-designed questionnaire was used to collect information including the infant's age, sex, birth weight, premature birth, birth number, delivery location and mother's HBV infection status. In 2014 (followed up for 5 years) and in 2019 (followed up for 10 years) (T1), 2 ml of venous blood samples were collected. Anti HBS and anti HBC were detected by CMIA method. Those with anti HBS<10 mIU/ml were detected by CMIA method. Multivariate unconditional logistic and linear regression models were used to analyze the influencing factors of anti-HBs positive rate and geometric mean concentration (GMC) at T1. Results: After 10 years follow-up, 73.94% of the subjects (1 359/1 835) finished the follow-up. 51.15% of the subjects, a total of 625 were boys. The positive rate of anti-HBs was 100% at T0 and decreased to 53.44% (95%CI: 50.59%-56.26%) at T1. The average annual decline rate of anti-HBs positive rate from T0 to T1 was 6.07%. The GMC of anti-HBs decreased from 607.89 (95%CI: 579.01-642.62) mIU/ml to 16.44 (95%CI: 15.06-18.00) mIU/ml. The average annual decline rate of anti-HBs GMC in 10-year follow-up was 30.30%. Multivariate logistic analysis showed that the positive rate of anti-HBs at T1 was lower in those who did not vaccinate the first dose in time (OR=0.25, 95%CI:0.07-0.71). Compared with those with GMC<1 000 mIU/ml at T0, those with GMC ≥ 1 000 mIU/ml had a higher positive rate of anti-HBs at T1 (OR=2.29, 95%CI:1.76-2.97). Multivariate regression analysis showed that the GMC of anti-HBs at T1 was lower in those who did not vaccinate the first dose in time (β=-0.50, 95%CI:-1.24-0.24). Compared with those with GMC<1 000 mIU/ml at T0, those with GMC ≥ 1 000 mIU/ml had a higher GMC of anti-HBs at T1 (β=0.81, 95%CI: 0.62-1.05). Conclusion: Anti-HBs GMC decreased in 10 years after primary vaccination of 5 μg recombinant hepatitis B vaccine among normal and high-responders. The anti-HBs persistence was mainly associated with whether the first dose was vaccinated in time and the level of anti-HBs at the end of primary vaccination.
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Affiliation(s)
- X Meng
- Expanded Program Immunizatin Division, Shandong Provincial Center for Disease Control and Prevention, Institute for Preventive Medicine of Shandong University, Shandong Provincial Key Laboratory of Infectious Disease Control and Prevention, Jinan 250014, China
| | - J J Lyu
- Expanded Program Immunizatin Division, Shandong Provincial Center for Disease Control and Prevention, Institute for Preventive Medicine of Shandong University, Shandong Provincial Key Laboratory of Infectious Disease Control and Prevention, Jinan 250014, China
| | - Y Feng
- Expanded Program Immunizatin Division, Shandong Provincial Center for Disease Control and Prevention, Institute for Preventive Medicine of Shandong University, Shandong Provincial Key Laboratory of Infectious Disease Control and Prevention, Jinan 250014, China
| | - X Dou
- School of Pubic Health, Cheeloo College of Medicine, Shandong University, Jinan 250012, China
| | - X Zhao
- School of Pubic Health, Cheeloo College of Medicine, Shandong University, Jinan 250012, China
| | - X F Liang
- Chinese Preventive Medicine Association, Beijing 100021, China
| | - F Z Wang
- Center for National Immunization Program, Chinese Center for Disease Control and Prevention, Beijing 100050, China
| | - A Q Xu
- Expanded Program Immunizatin Division, Shandong Provincial Center for Disease Control and Prevention, Institute for Preventive Medicine of Shandong University, Shandong Provincial Key Laboratory of Infectious Disease Control and Prevention, Jinan 250014, China School of Pubic Health, Cheeloo College of Medicine, Shandong University, Jinan 250012, China
| | - B Y Yan
- Expanded Program Immunizatin Division, Shandong Provincial Center for Disease Control and Prevention, Institute for Preventive Medicine of Shandong University, Shandong Provincial Key Laboratory of Infectious Disease Control and Prevention, Jinan 250014, China
| | - Li Zhang
- Expanded Program Immunizatin Division, Shandong Provincial Center for Disease Control and Prevention, Institute for Preventive Medicine of Shandong University, Shandong Provincial Key Laboratory of Infectious Disease Control and Prevention, Jinan 250014, China School of Pubic Health, Cheeloo College of Medicine, Shandong University, Jinan 250012, China
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10
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Sun L, Dou X, Yang W. Propofol protects rats against intra-cerebroventricular Streptozotocin-induced cognitive dysfunction and neuronal damage. Folia Morphol (Warsz) 2022; 82:248-255. [DOI: 10.5603/fm.a2022.0027] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2022] [Revised: 02/08/2022] [Accepted: 02/09/2022] [Indexed: 11/25/2022]
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11
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Deng T, Sun W, Mao Y, Huang J, He L, Dou X, Bai Y, Wang Z, Sun K. Mo
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C‐Embedded Carbon Nanofibers as the Interlayer in High‐Performance Lithium‐Sulfur Batteries. ChemElectroChem 2022. [DOI: 10.1002/celc.202101519] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Tongtong Deng
- Beijing Key Laboratory for Chemical Power Source and Green Catalysis School of Chemistry and Chemical Engineering Beijing Institute of Technology Beijing 100081 People's Republic of China
| | - Wang Sun
- Beijing Key Laboratory for Chemical Power Source and Green Catalysis School of Chemistry and Chemical Engineering Beijing Institute of Technology Beijing 100081 People's Republic of China
| | - Yuqiong Mao
- Beijing Key Laboratory for Chemical Power Source and Green Catalysis School of Chemistry and Chemical Engineering Beijing Institute of Technology Beijing 100081 People's Republic of China
| | - Jing Huang
- Hefei National Laboratory for Physical Sciences at the Microscale University of Science and Technology of China Hefei Anhui 230026 China
| | - Liuliu He
- Beijing Key Laboratory for Chemical Power Source and Green Catalysis School of Chemistry and Chemical Engineering Beijing Institute of Technology Beijing 100081 People's Republic of China
| | - Xinyue Dou
- Beijing Key Laboratory for Chemical Power Source and Green Catalysis School of Chemistry and Chemical Engineering Beijing Institute of Technology Beijing 100081 People's Republic of China
| | - Yu Bai
- Beijing Key Laboratory for Chemical Power Source and Green Catalysis School of Chemistry and Chemical Engineering Beijing Institute of Technology Beijing 100081 People's Republic of China
| | - Zhenhua Wang
- Beijing Key Laboratory for Chemical Power Source and Green Catalysis School of Chemistry and Chemical Engineering Beijing Institute of Technology Beijing 100081 People's Republic of China
| | - Kening Sun
- Beijing Key Laboratory for Chemical Power Source and Green Catalysis School of Chemistry and Chemical Engineering Beijing Institute of Technology Beijing 100081 People's Republic of China
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12
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Liu Y, Du X, Wang Z, Wang L, Liu Z, Shi W, Zheng R, Dou X, Zhu H, Yuan X. Layered double hydroxide coated electrospun carbon nanofibers as the chloride capturing electrode for ultrafast electrochemical deionization. J Colloid Interface Sci 2021; 609:289-296. [PMID: 34896829 DOI: 10.1016/j.jcis.2021.12.001] [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: 09/29/2021] [Revised: 11/25/2021] [Accepted: 12/01/2021] [Indexed: 10/19/2022]
Abstract
Slow desalination kinetics and poor durability of the electrodes are two key limitations of electrochemical deionization (EDI) that are considered to be the next generation of capacitive desalination (CDI). Herein, we report the design of a high-efficiency chloride removal electrode material for accelerating the desalination kinetics and concurrently improving the durability of EDI, which is based on coating NiMn-Cl layered double hydroxides (LDHs) on the surface of electrospun carbon nanofibers (CNFs@LDHs). The salient features of the as-developed CNFs@LDHs are that applying layer-structured LDHs with abundant redox-active sites to accelerate the pseudo-capacitive ion storage via fast ion intercalation/deintercalation, and leveraging the rigid CNF backbone to strengthen its durability by preventing the potential aggregation of LDHs. As expected, the CNFs@LDH based EDI system displays an ultrafast desalination rate of 0.51 mg g-1 s-1 and outstanding long-term stability (only 10.66 % desalination capacity reduction after 35 cycles), which is achieved without sacrificing its excellent desalination capacity (72.04 mg g-1). This work could be inspirational for the future design of ultrafast yet durable EDI approaching industrial desalination applications.
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Affiliation(s)
- Yong Liu
- School of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao, Shandong 266042, China
| | - Xin Du
- School of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao, Shandong 266042, China
| | - Ziping Wang
- Shandong Peninsula Engineering Research Center of Comprehensive Brine Utilization, Weifang University of Science and Technology, Weifang, Shandong 262700, China
| | - Lihao Wang
- School of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao, Shandong 266042, China
| | - Zizhen Liu
- School of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao, Shandong 266042, China
| | - Wenxue Shi
- School of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao, Shandong 266042, China
| | - Runzhe Zheng
- School of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao, Shandong 266042, China
| | - Xinyue Dou
- School of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao, Shandong 266042, China
| | - Haiguang Zhu
- School of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao, Shandong 266042, China
| | - Xun Yuan
- School of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao, Shandong 266042, China
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13
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Yu L, He M, Liu S, Dou X, Li L, Gu N, Li B, Liu Z, Wang G, Fan J. Fluorescent Egg White-Based Carbon Dots as a High-Sensitivity Iron Chelator for the Therapy of Nonalcoholic Fatty Liver Disease by Iron Overload in Zebrafish. ACS Appl Mater Interfaces 2021; 13:54677-54689. [PMID: 34756030 DOI: 10.1021/acsami.1c14674] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Iron overload is the direct cause of many ferroptosis diseases, and it is essential to maintain iron homeostasis. In this paper, we report the Fe3+ chelation and therapy of the iron overload nonalcoholic fatty liver disease (NAFLD) by the fluorescent egg white-based carbon dots (EWCDs) obtained through the microwave-assisted pyrolysis method. As a high-sensitivity sensor, EWCDs show a high correlation between fluorescence emission and the concentration of Fe3+ (R2 = 0.993) in low concentration ranges of 0-25 μM. In vivo and in vitro, the EWCDs show characteristics of high biocompatibility and specific binding of Fe3+. As a novel type of the nano-iron-chelator, EWCDs can successfully attenuate the production of lethal reactive oxygen species. EWCDs not only alleviate the endoplasmic reticulum stress response but also regulate the NF-κB signaling pathway downstream of the Nrf2 signaling pathway. EWCDs prevent hepatocyte apoptosis, regulate fatty acid metabolism, and alleviate inflammation. Ultimately, they alleviate NAFLD induced by iron overload in zebrafish. This work may provide a new idea and method for the application of carbon dots in the field of disease detection and treatment.
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Affiliation(s)
- Lidong Yu
- School of Physics, Harbin Institute of Technology (HIT), Harbin 150080, P. R. China
| | - Mingyue He
- School of Life Science and Technology, HIT, Harbin 150080, P. R. China
| | - Sihan Liu
- School of Life Science and Technology, HIT, Harbin 150080, P. R. China
| | - Xinyue Dou
- School of Life Science and Technology, HIT, Harbin 150080, P. R. China
| | - Li Li
- School of Physics, Harbin Institute of Technology (HIT), Harbin 150080, P. R. China
- School of Life Science and Technology, HIT, Harbin 150080, P. R. China
| | - Ning Gu
- School of Life Science and Technology, HIT, Harbin 150080, P. R. China
| | - Bingsheng Li
- Key Laboratory of UV Light Emitting Materials and Technology of Ministry of Education, Northeast Normal University, Changchun 130024, P. R. China
| | - Zhiguo Liu
- School of Physics, Harbin Institute of Technology (HIT), Harbin 150080, P. R. China
| | - Guixue Wang
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, College of Bioengineering, Chongqing University, Chongqing 400030, China
| | - Jianglin Fan
- Department of Molecular Pathology, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Yamanashi 409-3898, Japan
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14
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Wang K, Du X, Liu Z, Geng B, Shi W, Liu Y, Dou X, Zhu H, Pan L, Yuan X. Bismuth oxychloride nanostructure coated carbon sponge as flow-through electrode for highly efficient rocking-chair capacitive deionization. J Colloid Interface Sci 2021; 608:2752-2759. [PMID: 34785052 DOI: 10.1016/j.jcis.2021.11.006] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Accepted: 11/01/2021] [Indexed: 10/19/2022]
Abstract
Rocking-chair capacitive deionization (RCDI), as the next generation technique of capacitive deionization, has thrived to be one of the most promising strategies in the desalination community, yet was hindered mostly by its relatively low desalination rate and stability. Motivated by the goal of simultaneously enhancing the desalination rate and structural stability of the electrode, this paper reports an anion-driven flow-through RCDI (AFT-RCDI) system equipped with BiOCl nanostructure coated carbon sponge (CS@BiOCl for short; its backbone is derived from commercially available melamine foam with minimum capital cost) as the flow-through electrode. Owning to the rational design of the composite electrode material with minimum charge transfer resistance and ultrahigh structure stability as well as the superior flow-through cell architecture, the AFT-RCDI displays excellent desalination performance (desalination capacity up to 107.33 mg g-1; desalination rate up to 0.53 mg g-1s-1) with superior long-term stability (91.75% desalination capacity remained after 30 cycles). This work provides a new thought of coupling anion capturing electrode with flow-through cell architecture and employing a low-cost CS@BiOCl electrode with commercially available backbone material, which could shed light on the further development of low-cost electrochemical desalination systems.
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Affiliation(s)
- Kai Wang
- Shanghai Key Laboratory of Magnetic Resonance, School of Physics and Electronic Science, East China Normal University, Shanghai 200241, China
| | - Xin Du
- School of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao, Shandong 266042, China
| | - Zizhen Liu
- School of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao, Shandong 266042, China
| | - Bo Geng
- School of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao, Shandong 266042, China
| | - Wenxue Shi
- School of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao, Shandong 266042, China
| | - Yong Liu
- School of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao, Shandong 266042, China.
| | - Xinyue Dou
- School of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao, Shandong 266042, China
| | - Haiguang Zhu
- School of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao, Shandong 266042, China
| | - Likun Pan
- Shanghai Key Laboratory of Magnetic Resonance, School of Physics and Electronic Science, East China Normal University, Shanghai 200241, China
| | - Xun Yuan
- School of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao, Shandong 266042, China
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15
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Zhao X, Lyu JJ, Yan BY, Feng Y, Dou X, Liu JY, Xu AQ, Zhang L. [Rates and characteristics for hepatitis B reactivation of inactive hepatitis B carriers in rural communities]. Zhonghua Liu Xing Bing Xue Za Zhi 2021; 42:1553-1558. [PMID: 34814583 DOI: 10.3760/cma.j.cn112338-20210319-00220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Objective: To analyze the intensity and epidemiological characteristics of hepatitis B virus (HBV) reactivation among inactive HBsAg carriers (IHC) of rural areas in Ji'nan. Methods: In 2018 and 2020, follow-up investigations were conducted on IHC identified in the population physical examination in Zhangqiu district of Ji'nan. The results of the two follow-up visits were compared to analyze the incidence and distribution characteristics of HBV reactivation in IHC at the community level. Results: A total of 424 IHC completed two follow-up visits, and 47 cases of HBV reactivation were found, the cumulative reactivation rate was 11.08%, and the incidence density was 5.46/100 person-years. Multivariate analysis showed that gender, age, smoking, drinking , family history of liver disease and chronic diseases were not associated with HBV reactivation (P>0.05), and baseline HBV DNA load was associated with reactivation (P<0.05), in the HBV DNA level ≥1 000 IU/ml group, the reactivation rate could reach 18.92%. After reactivation, the mean level of ALT increased from baseline and the abnormal rate increased, liver function tended to be abnormal in reactivated patients. 4 (8.51%) reactivators had hepatitis, and 1 (2.13%) had jaundice hepatitis. Conclusions: The incidence of HBV reactivation was higher among IHC in rural communities in Ji'nan. Most of the reactivators were asymptomatic or mildly reactivated. Follow-up of inactive HBsAg patients should be strengthened and changes in ALT and HBV DNA levels should be closely monitored.
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Affiliation(s)
- X Zhao
- School of Public Health, Cheeloo College of Medicine, Shandong University, Ji'nan 250012, China
| | - J J Lyu
- Department of Immunization Programme, Shandong Center for Disease Control and Prevention, Ji'nan 250014, China
| | - B Y Yan
- Department of Immunization Programme, Shandong Center for Disease Control and Prevention, Ji'nan 250014, China
| | - Y Feng
- Department of Immunization Programme, Shandong Center for Disease Control and Prevention, Ji'nan 250014, China
| | - X Dou
- School of Public Health, Cheeloo College of Medicine, Shandong University, Ji'nan 250012, China
| | - J Y Liu
- The Third People's Hospital of Shenzhen, Shenzhen 518112, China
| | - A Q Xu
- School of Public Health, Cheeloo College of Medicine, Shandong University, Ji'nan 250012, China
| | - L Zhang
- Department of Immunization Programme, Shandong Center for Disease Control and Prevention, Ji'nan 250014, China
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16
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Zhu H, Chen L, Dou X, Liu Y, Yuan X. Engineering Durable Superhydrophobic Photocatalyst for Oil‐Water Separation and Degradation of Chemical Pollutants. ChemistrySelect 2021. [DOI: 10.1002/slct.202100925] [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] [Indexed: 11/08/2022]
Affiliation(s)
- Haiguang Zhu
- College of Materials Science and Engineering Qingdao University of Science and Technology (QUST) 53 Zhengzhou Rd., Shibei District Qingdao 266042 P. R. China
| | - Long Chen
- College of Materials Science and Engineering Qingdao University of Science and Technology (QUST) 53 Zhengzhou Rd., Shibei District Qingdao 266042 P. R. China
| | - Xinyue Dou
- College of Materials Science and Engineering Qingdao University of Science and Technology (QUST) 53 Zhengzhou Rd., Shibei District Qingdao 266042 P. R. China
| | - Yong Liu
- College of Materials Science and Engineering Qingdao University of Science and Technology (QUST) 53 Zhengzhou Rd., Shibei District Qingdao 266042 P. R. China
| | - Xun Yuan
- College of Materials Science and Engineering Qingdao University of Science and Technology (QUST) 53 Zhengzhou Rd., Shibei District Qingdao 266042 P. R. China
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17
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Dou X, Lyu JJ, Feng L, Yan BY, Feng Y, Zhao X, Xu AQ, Zhang L. [Analysis of capability to pertussis etiology and serological diagnosis for GradeⅡ and Ⅲmedical institutions in Shandong Province in 2018]. Zhonghua Yu Fang Yi Xue Za Zhi 2021; 55:727-731. [PMID: 34139811 DOI: 10.3760/cma.j.cn112150-20210316-00255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: Investigate and analyze the etiology and serological diagnosis capabilities of pertussis in medical institutions in Shandong Province in 2018. Methods: Using the census method, a questionnaire survey was conducted among 603 second and above level medical institutions in Shandong Province. The deadline for the survey was December 2018, and a total of 543 questionnaires have been recovered, and the validity rate of the questionnaires was 90%. Surveyed the pertussis etiology and serology test items (pertussis IgM and IgG, pertussis nucleic acid and pertussis bacterial culture) and the start time of each test item by questionnaire. The reported cases (confirmed cases and clinically diagnosed cases) between January 1, 2012 and December 31, 2018 were derived from the Chinese Disease Control and Prevention Information System according to the onset date. We used indicators such as fixed-base development speed, chain development speed, and chain growth speed for analysis. The chi test was used to analyze the differences in the composition ratio of medical institutions with detection ability in different levels and regions, and analyze the changes in the number of reported cases before and after the development of pertussis etiology and serology testing. Results: A total of 543 medical institutions accounted for 90.0% (543/603) of all secondary and above level medical institutions in the province, 356 secondary medical institutions (65.6%), and 187 tertiary medical institutions (34.4%). There were 10 medical institutions that carry out pertussis IgM, IgG and nucleic acid testing, accounting for 1.8% (10/543) of the surveyed medical institutions respectively. 2 medical institutions that carried out bacterial culture, accounting for 0.4% of the surveyed medical institutions (2/543). 20 medical institutions have carried out the above tests (8 secondary medical institutions and 12 tertiary medical institutions), accounting for 3.7% (20/543). The proportion of tertiary medical institutions with pertussis IgM, IgG detection and nucleic acid detection capabilities [6.42% (12/187)] was significantly higher than that of secondary medical institutions [2.25% (8/356)] (χ²=6.01, P=0.014). From 2012 to 2018, the fixed base ratio development speed of reported cases was 3 834.69% in Shandong Province, among which medical institutions with etiology and serological testing capabilities reached 4 533.33%. In 13 medical institutions, the average annual number of reported cases after pertussis etiology and serological testing were higher than that of reported cases before testing. Conclusion: The ability of pertussis etiology and serology diagnosis of secondary and above medical institutions in Shandong Province needs to be improved.
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Affiliation(s)
- X Dou
- School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan 250012, China
| | - J J Lyu
- Institute of Immunization and Prevention, Shandong Center for Disease Control and Prevention, Jinan 250014, China
| | - L Feng
- Institute of Immunization and Prevention, Shandong Center for Disease Control and Prevention, Jinan 250014, China
| | - B Y Yan
- Institute of Immunization and Prevention, Shandong Center for Disease Control and Prevention, Jinan 250014, China
| | - Y Feng
- Institute of Immunization and Prevention, Shandong Center for Disease Control and Prevention, Jinan 250014, China
| | - X Zhao
- School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan 250012, China
| | - A Q Xu
- School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan 250012, China
| | - L Zhang
- Institute of Immunization and Prevention, Shandong Center for Disease Control and Prevention, Jinan 250014, China
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18
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Wang X, Wang S, Qian S, Liu N, Dou X, Yuan X. Mechanistic insights into the two-phase synthesis of heteroleptic Au nanoclusters. Nanoscale 2021; 13:3512-3518. [PMID: 33565545 DOI: 10.1039/d0nr08152c] [Citation(s) in RCA: 3] [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] [Indexed: 06/12/2023]
Abstract
A mechanistic study on the two-phase synthesis of heteroleptic Au nanoclusters (NCs) is reported here. First, the effects of binary ligands on controlling the size of Au NCs were examined: (1) the binary ligands could exhibit an eclectic effect on the size control of Au NCs if the binding affinities of such hetero-ligands with Au are comparable and (2) the binary ligands could exhibit a competitive effect on the size control of Au NCs, and the size of the Au NCs could be determined by the ligand with stronger binding affinity to Au. This finding is interesting and can shed some light on the design of new functional metal NCs. Secondly, the formation mechanism of the heteroleptic Au NCs that originated from the complex precursors was unprecedentedly studied. The complex precursors of the heteroleptic Au NCs were identified to be the predominant hybridized ligand#1-Au(i)-ligand#2 species, which is helpful for understanding the synthetic mechanisms in depth. Moreover, the growth processes of the heteroleptic Au NCs were also monitored, and some fundamental perceptions about the growth pathway and the structures of the Au NCs were obtained.
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Affiliation(s)
- Xiangyu Wang
- College of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, P. R. China.
| | - Shanshan Wang
- College of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, P. R. China.
| | - Shuyu Qian
- College of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, P. R. China.
| | - Naiwei Liu
- College of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, P. R. China.
| | - Xinyue Dou
- College of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, P. R. China.
| | - Xun Yuan
- College of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, P. R. China. and Institute of Bioengineering and Nanotechnology, 31 Biopolis Way, The Nanos, Singapore 138669
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19
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Li R, Wang X, Sun Y, Lv Y, Dou X, Wang Q. Application of metagenomic next-generation sequencing in the diagnosis of imported malaria. Int J Infect Dis 2020. [DOI: 10.1016/j.ijid.2020.09.1115] [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: 10/22/2022] Open
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20
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Cui J, Dou X, Sun Y, Yue J. Consolidation Chemotherapy May Improve Pathological Complete Response For Locally Advanced Rectal Cancer After Neoadjuvant Chemoradiotherapy: Evidence From Real-World Data. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.1928] [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: 11/30/2022]
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21
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Dou X, Wang X, Qian S, Liu N, Yuan X. From understanding the roles of tetraoctylammonium bromide in the two-phase Brust-Schiffrin method to tuning the size of gold nanoclusters. Nanoscale 2020; 12:19855-19860. [PMID: 32970050 DOI: 10.1039/d0nr04439c] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The two-phase Brust-Schiffrin (B-S) method has been widely used for synthesizing small-sized Au nanoparticles (NPs) of size 2-6 nm, as well as Au nanoclusters (NCs) of size <2 nm. However, size tuning of Au NCs at the atomic level by this method is challenging probably due to a lack of in-depth understanding of its mechanism. Herein, we report the identification of two roles of tetraoctylammonium bromide (TOAB) in the two-phase B-S method: TOAB not only transfers Au(iii) precursors but also transfers the reducing agent NaBH4 from the aqueous to the organic phase. On this basis, we developed a novel two-phase synthetic strategy by decoupling the roles of the TOAB: (1) using the hydrophobic selenolate ligand to transfer Au(iii) precursors from the aqueous to the organic phase via the formation of selenolate-Au(i) complexes and (2) deploying a small amount of TOAB as "shuttles" to transfer NaBH4 into the organic phase for controlled reduction of selenolate-Au(i) complexes in organic phase. Using this strategy, size tuning of Au NCs at the atomic level could be achieved by simply varying the amount of TOAB. The high yields of Au NCs (≥76%) together with the short synthetic time (≤3 h) and size-tuning capability further illustrate the attractiveness of this synthetic strategy. These advantages also present the classical B-S method with greater strength and flexibility towards NC synthesis.
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Affiliation(s)
- Xinyue Dou
- College of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, P. R. China.
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22
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Zhao H, Chi Y, Liu W, Zuo L, Wang Y, Cai W, Shi S, Zheng B, Ge Y, Li R, Song L, Yang Y, Liu Z, Dou X. 1171P Genetic characteristics of neuroendocrine tumours at different anatomical sites. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.08.1384] [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: 10/23/2022] Open
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23
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Shi D, Jin D, Cai W, Zhu Q, Dou X, Fan G, Shen J, Xu L. Serial low-dose quantitative CT perfusion for the evaluation of delayed cerebral ischaemia following aneurysmal subarachnoid haemorrhage. Clin Radiol 2020; 75:131-139. [DOI: 10.1016/j.crad.2019.10.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2019] [Accepted: 10/03/2019] [Indexed: 10/25/2022]
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Dou X, Chen X, Zhu H, Liu Y, Chen D, Yuan X, Yao Q, Xie J. Water-soluble metal nanoclusters: recent advances in molecular-level exploration and biomedical applications. Dalton Trans 2019; 48:10385-10392. [DOI: 10.1039/c9dt01395d] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Recent advances of water-soluble metal nanoclusters (MNCs) in designing highly luminescent MNCs, ligand shell engineering, tracking MNC's growth processes, and biomedical applications are highlighted.
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Affiliation(s)
- Xinyue Dou
- Shandong Key Laboratory of Biochemical Analysis; College of Chemistry and Molecular Engineering
- Qingdao University of Science and Technology
- Qingdao 266042
- P. R. China
- School of Materials Science and Engineering
| | - Xiaoyu Chen
- School of Materials Science and Engineering
- Qingdao University of Science and Technology
- Qingdao 266042
- P. R. China
| | - Haiguang Zhu
- Shandong Key Laboratory of Biochemical Analysis; College of Chemistry and Molecular Engineering
- Qingdao University of Science and Technology
- Qingdao 266042
- P. R. China
- School of Materials Science and Engineering
| | - Yong Liu
- School of Materials Science and Engineering
- Qingdao University of Science and Technology
- Qingdao 266042
- P. R. China
| | - Dongyun Chen
- Shandong Key Laboratory of Biochemical Analysis; College of Chemistry and Molecular Engineering
- Qingdao University of Science and Technology
- Qingdao 266042
- P. R. China
- College of Chemistry
| | - Xun Yuan
- Shandong Key Laboratory of Biochemical Analysis; College of Chemistry and Molecular Engineering
- Qingdao University of Science and Technology
- Qingdao 266042
- P. R. China
- School of Materials Science and Engineering
| | - Qiaofeng Yao
- Department of Chemical and Biomolecular Engineering
- National University of Singapore
- Singapore
| | - Jianping Xie
- Department of Chemical and Biomolecular Engineering
- National University of Singapore
- Singapore
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Li ZZ, Zhong WL, Hu H, Chen XF, Zhang W, Huang HY, Yu B, Dou X. Aryl hydrocarbon receptor polymorphisms are associated with dry skin phenotypes in Chinese patients with atopic dermatitis. Clin Exp Dermatol 2018; 44:613-619. [PMID: 30499126 DOI: 10.1111/ced.13841] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/20/2018] [Indexed: 01/23/2023]
Abstract
BACKGROUND Epidermal barrier dysfunction is the initial event in the development of atopic dermatitis (AD). Recent studies have identified a crucial role for the aryl hydrocarbon receptor (AHR) in controlling the gene expression of filaggrin and other skin barrier proteins, suggesting an underlying association between AHR and AD pathogenesis. AIM To investigate the role of AHR gene polymorphisms in the susceptibility to AD and in AD-associated phenotypes. METHODS We enrolled 487 patients with AD, 210 patients with psoriasis and 226 healthy controls (HCs) from the Han Chinese population, and genotyped two AHR single-nucleotide polymorphisms (rs10249788 and rs2066853) by PCR and subsequent DNA sequencing. RESULTS The AHR rs10249788 and rs2066853 polymorphisms were found in both sets of patients (AD and psoriasis) and in HCs, but no significant differences were detected in genotype or allele frequencies between the three groups. However, patients with AD with the rs10249788 (CT/TT) or rs2066853 (AG + AA) genotype were more likely to have severe dry skin scores. In the stratification analysis, the AHR rs2066853 (AG + AA) and rs10249788 (CT + TT) genotypes could predict a higher risk of severe dry skin phenotypes in the male, early-onset and allergic rhinitis subgroups. Furthermore, the combined rs10249788 (CT + TT) and rs2066853 (AG + AA) genotypes led to a higher risk for severe dry skin in patients with AD. CONCLUSION AHR polymorphisms are not associated with the risk of AD; however, they may predict a dry skin phenotype in patients with AD.
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Affiliation(s)
- Z Z Li
- Department of Dermatology, Peking University Shenzhen Hospital, Shenzhen, Guangdong, China.,Shenzhen Key Laboratory for Translational Medicine of Dermatology, Shenzhen-Peking University-The Hong Kong University of Science and Technology Medical Center, Shenzhen, Guangdong, China
| | - W L Zhong
- Department of Dermatology, Peking University First Hospital, Beijing, China
| | - H Hu
- Shenzhen Key Laboratory for Translational Medicine of Dermatology, Shenzhen-Peking University-The Hong Kong University of Science and Technology Medical Center, Shenzhen, Guangdong, China
| | - X F Chen
- Shenzhen Key Laboratory for Translational Medicine of Dermatology, Shenzhen-Peking University-The Hong Kong University of Science and Technology Medical Center, Shenzhen, Guangdong, China
| | - W Zhang
- Shenzhen Key Laboratory for Translational Medicine of Dermatology, Shenzhen-Peking University-The Hong Kong University of Science and Technology Medical Center, Shenzhen, Guangdong, China
| | - H Y Huang
- Department of Dermatology, Peking University Shenzhen Hospital, Shenzhen, Guangdong, China
| | - B Yu
- Department of Dermatology, Peking University Shenzhen Hospital, Shenzhen, Guangdong, China
| | - X Dou
- Department of Dermatology, Peking University Shenzhen Hospital, Shenzhen, Guangdong, China
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26
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Jia N, Chang L, Dou X, Guan M, Shao Y, Li N, Cheng Y, Ying H, Sun Z, Zhou Y, Zhao L, Zhou J, Bai C. Circulating tumor DNA by next generation sequencing as a prognostic and predictive biomarker in metastatic colorectal cancer. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy281.098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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27
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Zhong W, Liu J, Wang H, Dou X, Yu B, Lin Z, Yang Y. Atypical presentation of Dowling-Degos disease with novel and recurrent mutations in POFUT1. Clin Exp Dermatol 2018; 43:937-939. [PMID: 29797344 DOI: 10.1111/ced.13649] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/18/2017] [Indexed: 12/29/2022]
Affiliation(s)
- W. Zhong
- Department of Dermatology; Peking University First Hospital; Beijing China
| | - J. Liu
- Department of Dermatology; Qigihar Hospital of Traditional Chinese Medicine; Qigihar China
| | - H. Wang
- Department of Dermatology; Peking University First Hospital; Beijing China
- Beijing Key Laboratory of Molecular Diagnosis on Dermatoses; Beijing China
- Peking-Tsinghua Center for Life Sciences; Beijing China
- Academy for Advanced Interdisciplinary Studies; Peking University; Beijing China
| | - X. Dou
- Department of Dermatology; Peking University Shenzhen Hospital; Shenzhen China
| | - B. Yu
- Department of Dermatology; Peking University Shenzhen Hospital; Shenzhen China
| | - Z. Lin
- Department of Dermatology; Peking University First Hospital; Beijing China
- Beijing Key Laboratory of Molecular Diagnosis on Dermatoses; Beijing China
| | - Y. Yang
- Department of Dermatology; Peking University First Hospital; Beijing China
- Beijing Key Laboratory of Molecular Diagnosis on Dermatoses; Beijing China
- Peking-Tsinghua Center for Life Sciences; Beijing China
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28
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Liang X, Xie Q, Tan D, Ning Q, Niu J, Bai X, Chen S, Cheng J, Yu Y, Wang H, Xu M, Shi G, Wan M, Chen X, Tang H, Sheng J, Dou X, Shi J, Ren H, Wang M, Zhang H, Gao Z, Chen C, Ma H, Chen Y, Fan R, Sun J, Jia J, Hou J. Interpretation of liver stiffness measurement-based approach for the monitoring of hepatitis B patients with antiviral therapy: A 2-year prospective study. J Viral Hepat 2018; 25:296-305. [PMID: 29080299 DOI: 10.1111/jvh.12814] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/31/2017] [Accepted: 09/25/2017] [Indexed: 02/05/2023]
Abstract
Liver biopsy is not routinely performed in treated chronic hepatitis B. Liver stiffness measurement has been validated for noninvasive liver fibrosis assessment in pretreatment chronic hepatitis B but has not been assessed for fibrosis monitoring during antiviral therapy. Liver stiffness was systemically monitored by Fibroscan® every 6 months in a cohort of patients with hepatitis B receiving antiviral therapy and compared with liver biopsies at baseline and week 104. A total of 534 hepatitis B e antigen-positive treatment-naive patients receiving telbivudine-based therapy with qualified liver stiffness measurement at baseline and week 104 were analyzed, 164 of which had adequate paired liver biopsies. Liver stiffness decreased rapidly (-2.2 kPa/24 weeks) in parallel with alanine aminotransferase (ALT) from 8.6 (2.6-49.5) kPa at baseline to 6.1 (2.2-37.4) kPa at week 24. Interestingly, liver stiffness decreased slowly (-0.3 kPa/24 weeks) but continually from week 24 to week 104 (6.1 vs 5.3 kPa, P < .001) while ALT levels remained stable within the normal range. More importantly, liver stiffness declined significantly irrespective of baseline ALT levels and liver necroinflammation grades. From baseline to week 104, the proportion of patients with no or mild fibrosis (Ishak, 0-2) increased from 74.4% (122/164) to 93.9% (154/164). Multivariate analysis revealed that percentage decline of 52-week liver stiffness from baseline was independently associated with 104-week liver fibrosis regression (odds ratio, 3.742; P = .016). Early decline of 52-week liver stiffness from baseline may reflect the remission of both liver inflammation and fibrosis and was predictive of 104-week fibrosis regression in treated patients with chronic hepatitis B.
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Affiliation(s)
- X Liang
- State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Viral Hepatitis Research, Department of Infectious Diseases and Hepatology Unit, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Q Xie
- Department of Infectious Diseases, Ruijin Hospital, Jiaotong University School of Medicine, Shanghai, China
| | - D Tan
- Department of Infectious Diseases, Xiangya Hospital, Central South University, Changsha, China
| | - Q Ning
- Department and Institute of Infectious Disease, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - J Niu
- Department of Hepatology, The First Hospital, Jilin University, Changchun, China
| | - X Bai
- Department of Infectious Diseases, Tangdu Hospital, Xi'an, China
| | - S Chen
- Ji'nan Infectious Diseases Hospital, Ji'nan, China
| | - J Cheng
- Beijing Ditan Hospital, Beijing, China
| | - Y Yu
- Department of Infectious Diseases, First Hospital of Peking University, Beijing, China
| | - H Wang
- Hepatology Unit, Peking University People's Hospital, Beijing, China
| | - M Xu
- 8th People's Hospital, Guangzhou, China
| | - G Shi
- Department of Infectious Diseases, Huashan Hospital, Fudan University, Shanghai, China
| | - M Wan
- Department of Infectious Diseases, Changhai Hospital, Shanghai, China
| | - X Chen
- Beijing Youan Hospital, Beijing, China
| | - H Tang
- Department of Infectious Diseases, West China Hospital, Chengdu, China
| | - J Sheng
- Department of Infectious Diseases, Zhejiang University 1st Affiliated Hospital, Hangzhou, China
| | - X Dou
- Department of Infectious Diseases, Shengjing Hospital of China Medical University, Shenyang, China
| | - J Shi
- 6th People's Hospital, Hangzhou, China
| | - H Ren
- Department of Infectious Diseases, The second Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - M Wang
- Department of Infectious Diseases, 81st PLA Hospital, Nanjing, China
| | - H Zhang
- 302nd PLA Hospital, Beijing, China
| | - Z Gao
- Department of Infectious Diseases, Sun Yat-Sen University 3rd Affiliated Hospital, Guangzhou, China
| | - C Chen
- Department of Infectious Diseases, 85th PLA Hospital, Shanghai, China
| | - H Ma
- Liver Research Center, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Y Chen
- State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Viral Hepatitis Research, Department of Infectious Diseases and Hepatology Unit, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - R Fan
- State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Viral Hepatitis Research, Department of Infectious Diseases and Hepatology Unit, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - J Sun
- State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Viral Hepatitis Research, Department of Infectious Diseases and Hepatology Unit, Nanfang Hospital, Southern Medical University, Guangzhou, China.,Guangdong Provincial Research Center for Liver Fibrosis, Guangzhou, China
| | - J Jia
- Liver Research Center, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - J Hou
- State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Viral Hepatitis Research, Department of Infectious Diseases and Hepatology Unit, Nanfang Hospital, Southern Medical University, Guangzhou, China.,Guangdong Provincial Research Center for Liver Fibrosis, Guangzhou, China
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Narayanan A, Wijnperlé D, Mugele F, Buchholz D, Vaalma C, Dou X, Passerini S, Duits M. Influence of electrochemical cycling on the rheo-impedance of anolytes for Li-based Semi Solid Flow Batteries. Electrochim Acta 2017. [DOI: 10.1016/j.electacta.2017.08.022] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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30
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Dai YH, Chen J, Lu L, Dou X, Hou J, She WD. [Diagnosis, misdiagnosis, and treatment of facial nerve Schwannoma (7 cases report)]. Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2017; 31:1294-1297. [PMID: 29798383 DOI: 10.13201/j.issn.1001-1781.2017.16.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [Subscribe] [Scholar Register] [Received: 03/23/2017] [Indexed: 06/08/2023]
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31
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Zhang W, Xie Q, Ning Q, Dou X, Chen X, Jia J, Xie Y, Ren H. The role of peginterferon in nucleos(t)ide-analogue-treated chronic hepatitis B patients: A review of published literature. J Viral Hepat 2017; 24:618-623. [PMID: 28211135 DOI: 10.1111/jvh.12695] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [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: 12/12/2016] [Accepted: 02/10/2017] [Indexed: 12/15/2022]
Abstract
Chronic hepatitis B infection (CHB) causes up to 1.0 million deaths annually. Currently, more than 90% of CHB patients worldwide are receiving indefinite nucleos(t)ide analogue (NA) therapy. New strategies for optimizing hepatitis B surface antigen (HBsAg) loss are required for NA-treated patients as the majority are unable to achieve HBsAg loss and may require lifelong therapy. In hepatitis B e antigen (HBeAg)-positive patients, switching from NAs to finite peginterferon (PegIFN) therapy can double HBeAg seroconversion rates. One in five patients who switch to PegIFN can achieve HBsAg loss, whereas patients who continue NA therapy typically do not. In HBeAg-negative NA-treated patients, add-on PegIFN therapy achieves higher, albeit modest, HBsAg loss rates compared with continued NA monotherapy and offers the opportunity for NA-treated patients to achieve the inactive carrier state. In the absence of curative therapies, PegIFN represents a valuable, finite option for NA-treated patients who would otherwise require potentially lifelong therapy.
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Affiliation(s)
- W Zhang
- Department of Infectious Diseases, Huashan Hospital, Fudan University, Shanghai, China
| | - Q Xie
- Department of Infectious Diseases, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Q Ning
- Department of Infectious Diseases, Wuhan Tongji Hospital affiliated to Huazhong Technology University, Tongji Medical College, Wuhan, China
| | - X Dou
- Department of Infectious Diseases, Shengjing Hospital of China Medical University, Shenyang, China
| | - X Chen
- International Medical Department, Beijing YouAn Hospital, Capital Medical University, Beijing, China
| | - J Jia
- Liver Research Center, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Y Xie
- Shanghai Roche Pharmaceuticals Ltd, Shanghai, China
| | - H Ren
- Department of Infectious Diseases, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
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Zheng J, Ye T, Shao Y, Yu B, Dou X. Multiple papules in a Chinese man. Clin Exp Dermatol 2016; 42:118-120. [PMID: 27935624 DOI: 10.1111/ced.12998] [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] [Accepted: 03/06/2016] [Indexed: 11/30/2022]
Affiliation(s)
- J Zheng
- Department of Dermatology, Peking University Shenzhen Hospital, Shenzhen, China
| | - T Ye
- Department of Dermatology, Peking University Shenzhen Hospital, Shenzhen, China
| | - Y Shao
- Department of Dermatology, Peking University Shenzhen Hospital, Shenzhen, China
| | - B Yu
- Department of Dermatology, Peking University Shenzhen Hospital, Shenzhen, China
| | - X Dou
- Department of Dermatology, Peking University Shenzhen Hospital, Shenzhen, China
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33
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Affiliation(s)
- W Zhong
- Department of Dermatology, Peking University Shenzhen Hospital, Shenzhen, Guangdong, 518036, China
- Shantou University Medical College, Shantou, Guangdong, 515041, China
| | - Y Shao
- Department of Dermatology, Peking University Shenzhen Hospital, Shenzhen, Guangdong, 518036, China
| | - T Ye
- Department of Dermatology, Peking University Shenzhen Hospital, Shenzhen, Guangdong, 518036, China
| | - J Li
- Department of Pathology, Peking University Shenzhen Hospital, Shenzhen, Guangdong, 518036, China
| | - B Yu
- Department of Dermatology, Peking University Shenzhen Hospital, Shenzhen, Guangdong, 518036, China
| | - X Dou
- Department of Dermatology, Peking University Shenzhen Hospital, Shenzhen, Guangdong, 518036, China
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34
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Dou X, Kim J, Ni C, Shao Y, Zhang J. Atopy patch test with house dust mite in Chinese patients with atopic dermatitis. J Eur Acad Dermatol Venereol 2016; 30:1522-6. [PMID: 27329364 DOI: 10.1111/jdv.13655] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2015] [Accepted: 02/15/2016] [Indexed: 01/28/2023]
Affiliation(s)
- X. Dou
- Department of Dermatology; Peking University Shenzhen Hospital; Shenzhen Guangdong China
| | - J. Kim
- Department of Dermatology; Huashan Hospital Fudan University; Shanghai China
| | - C.Y. Ni
- Department of Dermatology; Huashan Hospital Fudan University; Shanghai China
| | - Y. Shao
- Department of Dermatology; Peking University Shenzhen Hospital; Shenzhen Guangdong China
| | - J. Zhang
- Department of Dermatology; Peking University Shenzhen Hospital; Shenzhen Guangdong China
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Jin L, Wang R, Jiang S, Yue J, Liu T, Dou X, Zhu K, Feng R, Xu X, Chen D, Yin Y. Dosimetric and clinical toxicity comparison of critical organ preservation with three-dimensional conformal radiotherapy, intensity-modulated radiotherapy, and RapidArc for the treatment of locally advanced cancer of the pancreatic head. ACTA ACUST UNITED AC 2016; 23:e41-8. [PMID: 26966412 DOI: 10.3747/co.23.2771] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
PURPOSE We compared dosimetry and clinical toxicity for 3-dimensional conformal radiotherapy (3D-crt), intensity-modulated radiotherapy (imrt), and RapidArc (Varian Medical Systems, Palo Alto, CA, U.S.A.) in locally advanced pancreatic cancer (lapcc). We hypothesized that the technique with better sparing of organs at risk (oars) and better target dose distributions could lead to decreased clinical toxicity. METHODS The study analyzed 280 patients with lapcc who had undergone radiotherapy. The dosimetry comparison was performed using 20 of those patients. Dose-volume histograms for the target volume and the oars were compared. The clinical toxicity comparison used the 280 patients who received radiation with 3D-crt, imrt, or RapidArc. RESULTS Compared with 3D-crt, RapidArc and imrt both achieved a better conformal index, homogeneity index, V95%, and V110%. Compared with 3D-crt or imrt, RapidArc reduced the V10, V20, and mean dose to duodenum, the V20 of the right kidney, and the liver mean dose. Compared with 3D-crt, RapidArc reduced the V35, and V45 of duodenum, the mean dose to small bowel, and the V15 of right kidney. The incidences of grades 3 and 4 diarrhea (p = 0.037) and anorexia (p = 0.042) were lower with RapidArc than with 3D-crt, and the incidences of grades 3 and 4 diarrhea (p = 0.027) were lower with RapidArc than with imrt. CONCLUSIONS Compared with 3D-crt or imrt, RapidArc showed better sparing of oars, especially duodenum, small bowel, and right kidney. Also, fewer acute grades 3 and 4 gastrointestinal toxicities were seen with RapidArc than with 3D-crt or imrt. A technique with better sparing of oars and better target dose distributions could result in decreased clinical toxicities during radiation treatment for lapcc.
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Affiliation(s)
- L Jin
- Department of Radiation Oncology, Shandong Cancer Hospital, Jinan, P.R.C.;; School of Medicine and Life Sciences, University of Jinan, Shandong Academy of Medical Sciences, Jinan, P.R.C
| | - R Wang
- Department of Radiation Oncology, Shandong Cancer Hospital, Jinan, P.R.C
| | - S Jiang
- Department of Radiation Oncology, Shandong Cancer Hospital, Jinan, P.R.C
| | - J Yue
- Department of Radiation Oncology, Shandong Cancer Hospital, Jinan, P.R.C
| | - T Liu
- Department of Radiation Oncology, Shandong Cancer Hospital, Jinan, P.R.C
| | - X Dou
- Department of Radiation Oncology, Shandong Cancer Hospital, Jinan, P.R.C
| | - K Zhu
- Department of Radiation Oncology, Shandong Cancer Hospital, Jinan, P.R.C
| | - R Feng
- Department of Radiation Oncology, Shandong Cancer Hospital, Jinan, P.R.C
| | - X Xu
- Department of Radiation Oncology, Shandong Cancer Hospital, Jinan, P.R.C
| | - D Chen
- Department of Radiation Oncology, Shandong Cancer Hospital, Jinan, P.R.C.;; School of Medicine and Life Sciences, University of Jinan, Shandong Academy of Medical Sciences, Jinan, P.R.C
| | - Y Yin
- Department of Radiation Oncology, Shandong Cancer Hospital, Jinan, P.R.C
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Chen XF, Zhang Z, Dou X, Li JJ, Zhang W, Yu YY, Yu B, Yu B. Histamine H4 Receptor mediates interleukin-8 and TNF-α release in human mast cells via multiple signaling pathways. Cell Mol Biol (Noisy-le-grand) 2016; 62:84-89. [PMID: 26828993] [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: 12/10/2015] [Accepted: 12/23/2016] [Indexed: 06/05/2023]
Abstract
Histamine, mainly produced by mast cells, is an important inflammatory mediator in immune response. Recently Histamine H4 Receptor (H4R) was also identified in mast cells, from which pro-inflammatory cytokines and chemokines are released. However, the mechanism of how H4R mediates these cytokines and chemokines release in mast cells was still unclear. To further explore the role of H4R in the immune inflammatory response in mast cells, we tested the release of inflammatory cytokine tumor necrosis factor-α (TNF-α), chemokine interleukin-8 (IL-8) and the relevant signaling pathways activated by H4R on LAD2 cells (a human mast cell line). We found that the release of IL-8 and TNF-α were blocked by inhibitors of PI3K, ERK and Ca2+-Calcineurin-NFAT signaling pathways, while the release of these cytokines and chemokines were enhanced by the inhibitor of P38 signaling pathway. However, inhibitors of the JNK and NF-κB signaling pathways had little effect on the expression of the pro-inflammatory mediators. Moreover, activation of the H4R could induce phosphorylation of ERK, p38 and AKT in mast cells. In conclusion, we found that H4R mediates the release of inflammatory cytokine TNF-α and chemokine IL-8 in human mast cells via PI3K, Ca2+-Calcineurin-NFAT and MAPKs signaling pathways.
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Affiliation(s)
- X-F Chen
- Shenzhen Peking University Shenzhen Key Laboratory for Translational Medicine of Dermatology, Biomedical Research Institute Shenzhen China
| | - Z Zhang
- Peking University Shenzhen Hospital Department of Dermatology Shenzhen China
| | - X Dou
- Peking University Shenzhen Hospital Department of Dermatology Shenzhen China
| | - J-J Li
- Peking University Shenzhen Hospital Department of Dermatology Shenzhen China
| | - W Zhang
- Shenzhen Peking University Shenzhen Key Laboratory for Translational Medicine of Dermatology, Biomedical Research Institute Shenzhen China
| | - Y-Y Yu
- Shenzhen University School of Medicine Shenzhen China
| | - B Yu
- Peking University Shenzhen Hospital Department of Dermatology Shenzhen China
| | - B Yu
- Shenzhen Peking University Shenzhen Key Laboratory for Translational Medicine of Dermatology, Biomedical Research Institute Shenzhen China
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Wang Y, Wu JP, Qin GC, Li DY, Zhou ZP, Dou X, Zhu B, Guo HQ. Computerised tomography and intravenous pyelography in urinary tuberculosis: a retrospective descriptive study. Int J Tuberc Lung Dis 2015; 19:1441-7. [DOI: 10.5588/ijtld.14.0888] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Dou X, Charness ME. SY13-2WHAT MOLECULES AND CELLS CAN TELL US ABOUT GENETIC SUSCEPTIBILITY TO FASD. Alcohol Alcohol 2015. [DOI: 10.1093/alcalc/agv076.53] [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: 11/14/2022] Open
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39
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Jiang L, Zhong J, Dou X, Cheng C, Huang Z, Sun X. Effects of ApoE on intracellular calcium levels and apoptosis of neurons after mechanical injury. Neuroscience 2015; 301:375-83. [PMID: 26073697 DOI: 10.1016/j.neuroscience.2015.06.005] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [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: 02/06/2015] [Revised: 05/31/2015] [Accepted: 06/03/2015] [Indexed: 12/18/2022]
Abstract
OBJECTIVE The current study aimed to explore the effects of apolipoprotein e (ApoE) on intracellular calcium ([Ca(2+)]i) and apoptosis of neurons after mechanical injury in vitro. METHODS A neuron mechanical injury model was established after primary neurons obtained from APOE knockout and wild-type (WT) mice, and four experimental groups were generated: Group-ApoE4, Group-ApoE3, Group-ApoE(-) and Group-WT. Recombinant ApoE4 and ApoE3 were added to Group-ApoE4 and Group-ApoE3 respectively, and Group-ApoE(-) and Group-WT were control groups. Intracellular calcium was labeled by fluo-3/AM and examined using laser scanning confocal microscope and flow cytometry, and the apoptosis of neurons was also evaluated. RESULTS The intracellular calcium levels and apoptosis rates of mice neurons were significantly higher in Group-ApoE4 than in Group-ApoE3 and Group-WT after mechanical injury. However, without mechanical injury on neurons, no significant differences in intracellular calcium levels and apoptosis rates were found among all four experimental groups. The effects of ApoE4 on intracellular calcium levels and apoptosis rates of injured neurons were partly decreased by EGTA treatment. CONCLUSION Compared with ApoE3-treatment and WT neurons, ApoE4 caused higher intracellular calcium levels and apoptosis rates of neurons after mechanical injury. This suggested APOE polymorphisms may affect neuron apoptosis after mechanical injury through different influences on intracellular calcium levels.
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Affiliation(s)
- L Jiang
- Department of Neurosurgery, The First Affiliated Hospital of Chongqing Medical University, PR China
| | - J Zhong
- Department of Neurosurgery, The First Affiliated Hospital of Chongqing Medical University, PR China
| | - X Dou
- Chongqing Medical University, PR China
| | - C Cheng
- Department of Neurosurgery, The First Affiliated Hospital of Chongqing Medical University, PR China
| | - Z Huang
- Department of Neurosurgery, The First Affiliated Hospital of Chongqing Medical University, PR China
| | - X Sun
- Department of Neurosurgery, The First Affiliated Hospital of Chongqing Medical University, PR China.
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Lv S, Ye M, Wang X, Li Z, Chen X, Dou X, Dai Y, Zeng F, Luo L, Wang C, Li K, Luo X, Yan J, Li X. A recombined fusion protein SP5.2/tTF induce thrombosis in tumor blood vessel. Neoplasma 2015; 62:531-40. [PMID: 25997964 DOI: 10.4149/neo_2015_064] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Tumor vascular targeting is one of the most promising strategies in tumor therapy. Here we used E.coli to express a recombinant SP5.2/tTF fusion protein, which, as a tumor vascular targeting agent, consists of SP5.2 (a peptide selectively binding and targeting VEGFR-1 on tumor endothelial cells) and truncated tissue factor (tTF)and aimed to explore its anti-tumor activities.The SP5.2/tTF expression construct was synthesized by polymerase chain reaction (PCR) and recombined into plasmid pET22b(+). The fusion gene was verified by restriction mapping and sequencing. SP5.2/tTF was expressed in E. coli and then purified on a nickel-affinity chromatography column. The purified product was detected by SDS-PAGE. The pro-coagulant activity and binding of SP5.2/tTF to human umbilical vein endothelial cells (HUVECs) were monitored by FX activation analysis and fluorescent scanning confocal microscopy, respectively. The effect of SP5.2/tTF on tumor growth was analyzed in BALB/c mice bearing sarcoma 180 (S180) tumor. The tissue localization of SP5.2/tTF and its effect on tumor vessel thrombosis were observed by in vivo fluorescence imaging and histological studies, respectively. The fusion gene was successfully cloned into pET22b(+). SP5.2/tTF was abundantly expressed in bacterial cells and efficiently purified by nickel-affinity chromatography. Functional studies showed that the protein retained both the coagulation activity of tTF and the binding capacity of SP5.2 to HUVECs. In tumor xenograft studies, SP5.2/tTF selectively targeted the tumor, induced thrombosis, and led to retardation and even regression of tumor growth (growth inhibition ratio = 70%, P< 0.05). The recombinant fusion protein SP5.2/tTF inhibited tumor growth by selectively inducing thrombosis in tumor blood vessels.
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Zhuang L, Gong J, Li Q, Zhu C, Yu Y, Dou X, Liu X, Xu B, Wang C. Detection of Salmonella spp. by a loop-mediated isothermal amplification (LAMP) method targeting bcfD gene. Lett Appl Microbiol 2014; 59:658-64. [PMID: 25199410 DOI: 10.1111/lam.12328] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [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: 06/05/2014] [Revised: 08/29/2014] [Accepted: 09/04/2014] [Indexed: 11/28/2022]
Abstract
UNLABELLED In this study, we developed and validated a loop-mediated isothermal amplification (LAMP) assay for Salmonella detection targeting bcfD gene, a conserved fimbrial operon gene existing in Salmonella. The Salmonella LAMP assay we developed successfully amplified 44 Salmonella strains (14 standard strains and 30 clinical isolates), but none of 9 non-Salmonella standard strains (Proteus mirabilis, Listeria monocytogenes, Escherichia coli, Pseudomonas aeruginosa, Shigella flexneri, Shigella sonnei, Klebsiella pneumoniae, Campylobacter jejuni and Vibrio parahemolyticus). The detection limit was 5 CFU of Salmonella pure culture or 200 CFU of artificially spiked faeces per reaction system (equivalent to 5000 CFU g(-1) of faeces), and this method could directly detect Salmonella in chicken faeces free of pre-enrichment in a reaction time of 25 min. Our experiments show that the LAMP method we developed is a rapid, sensitive, specific and practical method for Salmonella detection. The Salmonella LAMP assay can potentially serve as new on-site diagnostics in the food and agricultural industries. SIGNIFICANCE AND IMPACT OF THE STUDY A loop-mediated isothermal amplification (LAMP) assay was established to detect Salmonella targeting bcfD gene, a conserved fimbrial operon gene. The detection limit was 5 CFU of Salmonella pure culture or 200 CFU of artificially spiked faeces per reaction system (equivalent to 5000 CFU g(-1) of faeces), and this method could directly detect Salmonella in chicken faeces free of pre-enrichment in a reaction time of 25 min. The Salmonella LAMP assay is a rapid, sensitive, specific and practical method for Salmonella detection and can potentially serve as new on-site diagnostics in the food and agricultural industries.
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Affiliation(s)
- L Zhuang
- Yangzhou University College of Veterinary Medicine, Yangzhou, Jiangsu, China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, China
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Zhao L, Yang W, Yang X, Lin Y, Lv J, Dou X, Luo Q, Dong J, Chen Z, Chu Y, He R. Chemerin suppresses murine allergic asthma by inhibiting CCL2 production and subsequent airway recruitment of inflammatory dendritic cells. Allergy 2014; 69:763-74. [PMID: 24758146 DOI: 10.1111/all.12408] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/04/2014] [Indexed: 02/01/2023]
Abstract
BACKGROUND Chemerin has been implicated to play opposing roles, either pro-inflammatory or anti-inflammatory, in various tissue inflammation processes primarily through the regulation of tissue recruitment of immune cells. However, the effect of chemerin in allergic asthma has not yet been explored. We sought to investigate the role of chemerin in the murine model of allergic asthma and explore the underlying mechanism. METHODS We examined the effect of intranasal (i.n.) administration of chemerin during antigen challenge in murine models of asthma. Moreover, we examined whether administration of CCL2 or bone marrow-derived dendritic cells (BMDCs) transfer reversed the effects of chemerin on ovalbumin-induced asthma. We finally examined the effect of chemerin on CCL2 expression in activated lung epithelial cells in vitro. RESULTS The administration of chemerin attenuated allergic airway inflammation and airway hyperreactivity during antigen challenge. Chemerin treatment caused significant decreases in BALF CD4(+) T-cell accumulation and mRNA expression of Th2-attracting chemokines, CCL17 and CCL22, which was accompanied by significantly decreased BALF CD11c(+) CD11b(+) inflammatory DC accumulation and CCL2 production. Furthermore, airway administration of exogenous CCL2 or adoptive transfer of CD11c(+) CD11b(+) BMDCs abrogated the suppressive effects of chemerin on allergic asthma. Finally, in vitro study showed that chemerin inhibited CCL2 secretion by low-dose LPS-stimulated lung epithelial cells, which led to decreased chemotaxis of BMDCs. CONCLUSIONS Our study demonstrates that chemerin plays a protective role in allergic asthma by suppressing airway recruitment of inflammatory CD11c(+) CD11b(+) DCs through the inhibition of CCL2 secretion by active lung epithelial cells.
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Affiliation(s)
- L. Zhao
- Key Laboratory of Medical Molecular Virology of Ministries of Education and Health; Department of Immunology; School of Basic Medical Sciences; Fudan University; Shanghai China
| | - W. Yang
- Key Laboratory of Medical Molecular Virology of Ministries of Education and Health; Department of Immunology; School of Basic Medical Sciences; Fudan University; Shanghai China
| | - X. Yang
- Key Laboratory of Medical Molecular Virology of Ministries of Education and Health; Department of Immunology; School of Basic Medical Sciences; Fudan University; Shanghai China
| | - Y. Lin
- Key Laboratory of Medical Molecular Virology of Ministries of Education and Health; Department of Immunology; School of Basic Medical Sciences; Fudan University; Shanghai China
| | - J. Lv
- Key Laboratory of Medical Molecular Virology of Ministries of Education and Health; Department of Immunology; School of Basic Medical Sciences; Fudan University; Shanghai China
| | - X. Dou
- Department of Dermatology; Huashan Hospital; Shanghai China
| | - Q. Luo
- Institute of Chinese Integrative Medicine; Huashan Hospital; Shanghai China
| | - J. Dong
- Institute of Chinese Integrative Medicine; Huashan Hospital; Shanghai China
| | - Z. Chen
- Department of Pulmonary Disease; Zhongshan Hospital; Shanghai China
| | - Y. Chu
- Key Laboratory of Medical Molecular Virology of Ministries of Education and Health; Department of Immunology; School of Basic Medical Sciences; Fudan University; Shanghai China
- Biotherapy Research Center; Fudan University; Shanghai China
| | - R. He
- Key Laboratory of Medical Molecular Virology of Ministries of Education and Health; Department of Immunology; School of Basic Medical Sciences; Fudan University; Shanghai China
- Biotherapy Research Center; Fudan University; Shanghai China
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Dou X, Yuan X, Yu Y, Luo Z, Yao Q, Leong DT, Xie J. Lighting up thiolated Au@Ag nanoclusters via aggregation-induced emission. Nanoscale 2014; 6:157-61. [PMID: 24212532 DOI: 10.1039/c3nr04490d] [Citation(s) in RCA: 104] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
A simple strategy has been developed to synthesize highly luminescent thiolated Au@Ag nanoclusters (NCs) by using Ag(i) ions to bridge small Au(i)-thiolate motifs on the weakly luminescent thiolated Au NCs, leading to the formation of large Au(i)/Ag(i)-thiolate motifs on the NC surface and thus generating strong luminescence via aggregation-induced emission.
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Affiliation(s)
- Xinyue Dou
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, 117576, Singapore.
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Dou X, Yuan X, Yao Q, Luo Z, Zheng K, Xie J. Facile synthesis of water-soluble Au25–xAgx nanoclusters protected by mono- and bi-thiolate ligands. Chem Commun (Camb) 2014; 50:7459-62. [DOI: 10.1039/c4cc02261k] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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Zhang GJ, Wei X, Dou X. Abstract P1-07-11: ERa regulates epithelial-mesenchymal transition in breast cancers through suppressing Bmi1 expression. Cancer Res 2013; 73:P1-07-11-P1-07-11. [DOI: 10.1158/0008-5472.sabcs13-p1-07-11] [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: 11/16/2022]
Abstract
Abstract
Background: Bmi1, a polycomb-group protein, maintains stem cell self-renewal and is frequently overexpressed in cancers. Upregulation of Bmi1 by Twist1 can promote tumor-initiating capability and Epithelial-mesenchymal transition (EMT) by repressing E-cadherin expression. It has been demonstrated that Post-EMT breast cancer cells express cancer stem cell (CSC) markers including Bmi1, but display decreased ERα expression. ERα is a ligand-activated nuclear hormone receptor that regulates the transcription of E2-responsive genes in diverse target cells. It's reported that ligand-activated ERα could repress slug transcription by binding to the half-site ERE element in its promoter, and then regulate E-cadherin and EMT. Herein, we hypothesized that ERα signaling might regulate E-cadherin and EMT through Bmi1.
Methods: First, we determined Bmi1 and ERα expression at both mRNA and protein levels by quantitative RT-PCR and Western blot in various breast cancer cell lines. Further, we quantitatively analyzed mRNA and protein levels of Bmi1 as well as its down-stream genes including E-cadherin after silencing ERα in T47D cells with siRNA, or after overexpressing ERα in BT549 cells. The chromatin immunoprecipitation (ChIP) and electrophoretic mobility shift assay (EMSA) were also performed to investigate whether ERα binds directly to Bmi1 promoter region. Luciferase assay with Bmi1 reporter was performed to ERα mediated regulation. To identify whether ERα regulates EMT, transwell and matrigel invasion, flow cytometry, mammosphere assay and wound healing assay were performed to invasion, metastases and characterize stem-cell properties of EMT. Finally, we analyzed the expression of ERα, Bmi1 and E-cadherin in human breast cancer specimens with immunohistochemistry.
Results: The study showed that Bmi1 inversely correlated with ERα expression in different subtypes of breast cancer cells. We further confirmed that Bmi1 was upregulated at both mRNA and protein levels and E-cadherin was downregulated with siRNA against ERα in T47D cells, and Bmi1 was downregulated and E-cadherin was upregulated when overexpressing ERα in BT549 cells with qRT-PCR and western blot analyses. The present study also demonstrated that ERα could directly binds to the half-ERE region of the Bmi1 gene and repressing Bmi1 expression transcriptionally with CHIP/EMSA and reporter analyses. Overexpression of ERα in BT549 cell significantly decreased levels of migration of transwell and wounding healing, invasiveness, CD44high/CD24low population, and the capabilities of mammosphere formation.
Conclusions: Our results demonstrated that ERα can suppress EMT through transcriptionally down-regulating Bmi-1 and its down-stream genes in human breast cancer cells. The inverse relationship between ERα and Bmi1 expression further supports the epithelial phenotype of ERα positive tumors or mesenchymal phenotype of ERα negative tumors. Our findings provide a novel mechanistic insight into how ERα regulates EMT, and is of valuable for developing biomarkers to predict prognosis and targeted therapies in breast cancers in the future.
Citation Information: Cancer Res 2013;73(24 Suppl): Abstract nr P1-07-11.
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Affiliation(s)
- G-J Zhang
- The Breast Center, Shantou University Medical College, Shantou, Guangdong, China
| | - X Wei
- The Breast Center, Shantou University Medical College, Shantou, Guangdong, China
| | - X Dou
- The Breast Center, Shantou University Medical College, Shantou, Guangdong, China
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Yuan X, Yao Q, Yu Y, Luo Z, Dou X, Xie J. Traveling through the Desalting Column Spontaneously Transforms Thiolated Ag Nanoclusters from Nonluminescent to Highly Luminescent. J Phys Chem Lett 2013; 4:1811-1815. [PMID: 26283113 DOI: 10.1021/jz400807u] [Citation(s) in RCA: 14] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
This letter reports an unexpected observation in the purification of ultrasmall (<2 nm) thiolate-protected Ag nanoclusters (NCs) via a common separation technique (e.g., desalting column and ultrafiltration), where the nonluminescent Ag NCs were spontaneously transformed to highly luminescent NCs during the separation. This interesting finding was then used to develop a facile and fast (<5 min) synthesis method for highly luminescent Ag NCs. The key strategy was to use the separation process to selectively remove small species (e.g., salts and excess protecting ligands) from the Ag NC solution, which induced a size or structure-focusing of Ag NCs in the solution, leading to the formation of highly luminescent Ag NCs. The concurrent synthesis and purification of highly luminescent Ag NCs via a common "physical separation unit" could be further advanced in a continuous mode for large-scale production of luminescent Ag NCs.
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Affiliation(s)
- Xun Yuan
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, 117576, Singapore
| | - Qiaofeng Yao
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, 117576, Singapore
| | - Yong Yu
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, 117576, Singapore
| | - Zhentao Luo
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, 117576, Singapore
| | - Xinyue Dou
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, 117576, Singapore
| | - Jianping Xie
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, 117576, Singapore
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Yuan X, Tay Y, Dou X, Luo Z, Leong DT, Xie J. Glutathione-protected silver nanoclusters as cysteine-selective fluorometric and colorimetric probe. Anal Chem 2013; 85:1913-9. [PMID: 23270302 DOI: 10.1021/ac3033678] [Citation(s) in RCA: 290] [Impact Index Per Article: 26.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
The integration of the unique thiol-Ag chemistry and the specific steric hindrance from the organic layer of fluorescent Ag nanoclusters (AgNCs) was first developed in this work to achieve a simple detection of cysteine (Cys) with high selectivity and sensitivity. The key design is a strongly red-emitting AgNC protected by the interference biothiol, glutathione, or GSH (hereafter referred to as GSH-AgNCs), where both the physicochemical properties (Ag surface chemistry and fluorescence) of the NC core and the physical properties (e.g., steric hindrance) of the organic shell were fully utilized for Cys detection with three major features. First, owing to the specific thiol-Ag interaction, the fluorescent GSH-AgNCs showed superior selectivity for Cys over the other 19 natural amino acids (nonthiol-containing). Second, the GSH protecting layer on the NC surface made possible the differentiation of Cys from GSH (or other large-sized thiol molecules) simply by their size. Third, the ultrasmall size of GSH-AgNCs and the high affinity of the thiol-Ag interaction provided high sensitivity for Cys detection with a detection limit of <3 nM. The assay developed in this study is of interest not only because it provides a simple Cys sensor with high selectivity and sensitivity but also because it exemplifies the utilization of the physical properties of organic ligands on the nanomaterial surface to further improve the sensor performance, which could open a new design strategy for other sensor development.
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Affiliation(s)
- Xun Yuan
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, 117576, Singapore
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Zhu X, Wang L, Zhang B, Li J, Dou X, Zhao RC. TGF- 1-induced PI3K/Akt/NF- B/MMP9 signalling pathway is activated in Philadelphia chromosome-positive chronic myeloid leukaemia hemangioblasts. J Biochem 2011; 149:405-14. [DOI: 10.1093/jb/mvr016] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
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Dou X, Glynn M, Kim Y, Wu X. Smoothing Intensity Map to Improve IMRT Efficiency. Int J Radiat Oncol Biol Phys 2010. [DOI: 10.1016/j.ijrobp.2010.07.1925] [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: 10/19/2022]
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Dou X, Wu X, Bhatia S, Buatti J. TH-C-201C-03: Tumor Segmentation in CT Images Using Globally Optimal Single Surface Detection. Med Phys 2010. [DOI: 10.1118/1.3469508] [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: 11/07/2022] Open
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