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Zhang DQ, Ma QH, Yang MC, Belyakova YY, Yang ZF, Radulov PS, Chen RH, Yang LJ, Wei JY, Peng YT, Zheng WY, Yaremenko IA, Terent'ev AO, Coghi P, Wong VKW. Peroxide derivatives as SARS-CoV-2 entry inhibitors. Virus Res 2024; 340:199295. [PMID: 38081457 PMCID: PMC10733699 DOI: 10.1016/j.virusres.2023.199295] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Revised: 11/14/2023] [Accepted: 12/05/2023] [Indexed: 12/24/2023]
Abstract
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is the cause of the ongoing coronavirus disease 2019 (COVID-19) pandemic. Host cell invasion is mediated by the interaction of the viral spike protein (S) with human angiotensin-converting enzyme 2 (ACE2) through the receptor-binding domain (RBD). In this work, bio-layer interferometry (BLI) was used to screen a series of fifty-two peroxides, including aminoperoxides and bridged 1,2,4 - trioxolanes (ozonides), with the aim of identifying small molecules that interfere with the RBD-ACE2 interaction. We found that two compounds, compound 21 and 29, exhibit the activity to inhibit RBD-ACE2. They are further demonstrated to inhibit SARS-CoV-2 cell entry, as shown in pseudovirus assay and experiment with authentic SARS-CoV-2. A comprehensive in silico analysis was carried out to study the physicochemical and pharmacokinetic properties, revealing that both compounds have good physicochemical properties as well as good bioavailability. Our results highlight the potential of small molecules targeting RBD inhibitors as potential therapeutic drugs for COVID-19.
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Affiliation(s)
- Ding-Qi Zhang
- Dr. Neher's Biophysics Laboratory for Innovative Drug Discovery, State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau, China
| | - Qin-Hai Ma
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, China
| | - Meng-Chu Yang
- Dr. Neher's Biophysics Laboratory for Innovative Drug Discovery, State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau, China
| | - Yulia Yu Belyakova
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Moscow, Russian Federation
| | - Zi-Feng Yang
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, China
| | - Peter S Radulov
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Moscow, Russian Federation
| | - Rui-Hong Chen
- Dr. Neher's Biophysics Laboratory for Innovative Drug Discovery, State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau, China
| | - Li-Jun Yang
- Institute of Translational Medicine, Zhejiang Shuren University, Hangzhou, China
| | - Jing-Yuan Wei
- School of Pharmacy, Macau University of Science and Technology, Macau, China
| | - Yu-Tong Peng
- School of Pharmacy, Macau University of Science and Technology, Macau, China
| | - Wu-Yan Zheng
- Dr. Neher's Biophysics Laboratory for Innovative Drug Discovery, State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau, China
| | - Ivan A Yaremenko
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Moscow, Russian Federation; Faculty of Chemical and Pharmaceutical Technology and Biomedical Products, D .I . Mendeleev University of Chemical Technology of Russia, Moscow, Russian Federation
| | - Alexander O Terent'ev
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Moscow, Russian Federation.
| | - Paolo Coghi
- School of Pharmacy, Macau University of Science and Technology, Macau, China.
| | - Vincent Kam Wai Wong
- Dr. Neher's Biophysics Laboratory for Innovative Drug Discovery, State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau, China.
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Zheng JP, Ling Y, Jiang LS, Mootsikapun P, Lu HZ, Chayakulkeeree M, Zhang LX, Arttawejkul P, Hu FY, Truong TNL, Perez RA, Gu X, Sun HM, Jiang JJ, Liu RJ, Ding Z, Zhan YQ, Yang ZF, Guan WJ, Zhong NS. Effects of Lianhuaqingwen Capsules in adults with mild-to-moderate coronavirus disease 2019: an international, multicenter, double-blind, randomized controlled trial. Virol J 2023; 20:277. [PMID: 38017515 PMCID: PMC10685492 DOI: 10.1186/s12985-023-02144-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Accepted: 07/26/2023] [Indexed: 11/30/2023] Open
Abstract
BACKGROUND In a randomized trial, Lianhuaqingwen (LHQW) capsule was effective for accelerating symptom recovery among patients with coronavirus disease 2019 (COVID-19). However, the lack of blinding and limited sample sizes decreased the level of clinical evidence. OBJECTIVES To evaluate the efficacy and safety of LHQW capsule in adults with mild-to-moderate COVID-19. METHODS We conducted a double-blind randomized controlled trial in adults with mild-to-moderate COVID-19 (17 sites from China, Thailand, Philippine and Vietnam). Patients received standard-of-care alone or plus LHQW capsules (4 capsules, thrice daily) for 14 days. The primary endpoint was the median time to sustained clinical improvement or resolution of nine major symptoms. RESULTS The full-analysis set consisted of 410 patients in LHQW capsules and 405 in placebo group. LHQW significantly shortened the primary endpoint in the full-analysis set (4.0 vs. 6.7 days, hazards ratio: 1.63, 95% confidence interval: 1.39-1.90). LHQW capsules shortened the median time to sustained clinical improvement or resolution of stuffy or runny nose (2.8 vs. 3.7 days), sore throat (2.0 vs. 2.6 days), cough (3.2 vs. 4.9 days), feeling hot or feverish (1.0 vs. 1.3 days), low energy or tiredness (1.3 vs. 1.9 days), and myalgia (1.5 vs. 2.0 days). The duration to sustained clinical improvement or resolution of shortness of breath, headache, and chills or shivering did not differ significantly between the two groups. Safety was comparable between the two groups. No serious adverse events were reported. INTERPRETATION LHQW capsules promote recovery of mild-to-moderate COVID-19 via accelerating symptom resolution and were well tolerated. Trial registration ChiCTR2200056727 .
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Affiliation(s)
- Jin-Ping Zheng
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute for Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, 28 Qiaozhong Road Middle, Guangzhou, Guangdong, China.
| | - Yun Ling
- Shanghai Public Health Clinical Center, Shanghai, China
| | | | | | - Hong-Zhou Lu
- The Third People's Hospital of Shenzhen, Shenzhen, China
| | | | - Li-Xiu Zhang
- The Affiliated Hospital of Changchun University of TCM, Changchun, China
| | | | - Feng-Yu Hu
- Guangzhou Eighth People's Hospital, Guangzhou Medical University, Guangzhou, China
| | - Thi Ngoc Lan Truong
- Traditional Medicine Institute of Ho Chi Minh City, Ho Chi Minh City, Vietnam
| | - Roxan A Perez
- Dr. Jose N. Rodriguez Memorial Hospital and Sanitarium, Caloocan, The Philippines
| | - Xing Gu
- Xi'an Chest Hospital, Xi'an, China
| | - Hui-Min Sun
- Tangshan Hospital of Traditional Chinese Medicine, Tangshan, China
| | | | - Ren-Jie Liu
- First People's Hospital of Zhengzhou City, Zhengzhou, China
| | | | - Yang-Qing Zhan
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute for Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, 28 Qiaozhong Road Middle, Guangzhou, Guangdong, China
| | - Zi-Feng Yang
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute for Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, 28 Qiaozhong Road Middle, Guangzhou, Guangdong, China
| | - Wei-Jie Guan
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute for Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, 28 Qiaozhong Road Middle, Guangzhou, Guangdong, China
| | - Nan-Shan Zhong
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute for Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, 28 Qiaozhong Road Middle, Guangzhou, Guangdong, China.
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Zhan YQ, Chen RF, Zheng QS, Li XW, Liu YN, Mootsikapun P, Chayakulkeeree M, Arttawejkul P, Lan TTN, Liu GG, Lu HZ, Liu QQ, Zhong NS, Yang ZF, Zheng JP. Efficacy and safety of Lianhua Qingwen capsules combined with standard of care in the treatment of adult patients with mild to moderate COVID-19 (FLOSAN): protocol for a randomized, double-blind, international multicenter clinical trial. J Thorac Dis 2023; 15:2859-2872. [PMID: 37324081 PMCID: PMC10267938 DOI: 10.21037/jtd-23-281] [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: 02/22/2023] [Accepted: 04/14/2023] [Indexed: 06/17/2023]
Abstract
Background Effective anti-severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) drugs are not only the next defense after vaccines but also the key part of establishing a multi-tiered coronavirus disease 2019 (COVID-19) prevention and control system. Previous studies had indicated that Lianhua Qingwen (LHQW) capsules could be an efficacious Chinese patent drug for treating mild to moderate COVID-19. However, pharmacoeconomic evaluations are lacking, and few trials have been conducted in other countries or regions to evaluate the efficacy and safety of LHQW treatment. So, this study aims to explore the clinical efficacy, safety, and economy of LHQW for treating adult patients with mild to moderate COVID-19. Methods This is a randomized, double-blind, placebo-controlled, international multicenter clinical trial protocol. A total of 860 eligible subjects are randomized at a 1:1 ratio into the LHQW or placebo group to receive two-week treatment and follow-up visits on days 0, 3, 7, 10, and 14. Clinical symptoms, patient compliance, adverse effects, cost scale, and other indicators are recorded. The primary outcomes will be the measured median time to sustained improvement or resolution of the nine major symptoms during the 14-day observation period. Secondary outcomes regarding clinical efficacy will be evaluated in detail on the basis of clinical symptoms (especially body temperature, gastrointestinal symptoms, smell loss, and taste loss), viral nucleic acid, imaging (CT/chest X-ray), the incidence of severe/critical illness, mortality, and inflammatory factors. Moreover, we will assess health care cost, health utility, and incremental cost-effectiveness ratio (ICER) for economic evaluation. Discussion This is the first international multicenter randomized controlled trial (RCT) of Chinese patent medicine for the treatment of early COVID-19 in accordance with WHO guidelines on COVID-19 management. This study will help clarify the potential efficacy and cost-effectiveness of LHQW in the treatment of mild to moderate COVID-19, facilitating decision-making by healthcare workers. Registration This study is registered at the Chinese Clinical Trial Registry, with registration number: ChiCTR2200056727 (date of first registration: 11/02/2022).
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Affiliation(s)
- Yang-Qing Zhan
- The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Institute of Respiratory Health, State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, Guangzhou, China
| | - Rui-Feng Chen
- The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Institute of Respiratory Health, State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, Guangzhou, China
- Faculty of Chinese Medicine, Macau University of Science and Technology, Macau, China
| | - Qing-Shan Zheng
- Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Xing-Wang Li
- Beijing Ditan Hospital Capital Medical University, Beijing, China
| | | | | | | | | | - Truong Thi Ngoc Lan
- Traditional Medicine Institute of Ho Chi Minh City, Ho Chi Minh City, Vietnam
| | - Gordon G. Liu
- Peking University Institute for Global Health and Development, Beijing, China
| | - Hong-Zhou Lu
- The Third People’s Hospital of Shenzhen, Shenzhen, China
| | - Qing-Quan Liu
- Beijing Hospital of Traditional Chinese Medicine, Beijing, China
| | - Nan-Shan Zhong
- The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Institute of Respiratory Health, State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, Guangzhou, China
| | - Zi-Feng Yang
- The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Institute of Respiratory Health, State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, Guangzhou, China
- Faculty of Chinese Medicine, Macau University of Science and Technology, Macau, China
| | - Jin-Ping Zheng
- The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Institute of Respiratory Health, State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, Guangzhou, China
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4
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Wang X, Zhang ZP, Guo XL, Yang ZF, Ma TX, Zhang ZW. [Summary and analysis of total auricle reconstruction in adult microtia patients]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2023; 58:476-480. [PMID: 37150994 DOI: 10.3760/cma.j.cn115330-20230113-00020] [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: 05/09/2023]
Abstract
Objective: To observe the clinical effect of auricle reconstruction in adult patients with microtia and summarize the experience. Methods: Clinical data of adult patients with microtia who underwent total auricle reconstruction using the modified Nagata's two stage for microtia reconstruction from June 2016 to June 2021 were analyzed. A total of 41 adult patients (42 ears) with microtia were enrolled, including 30 males and 11 females, with the median age at the time of surgery of 37 years. Autogenous costal cartilage was used as the auricular framework for all patients in this group. The first stage surgery was performed according to the modified Nagata's two stage for microtia reconstruction procedure,cartilage auricular framework carving was performed by different methods according to the ossification state of adult costal cartilage. Six months following the primary operation, ear elevation and cranioauricular angle formation, retroauricular facial flap transfer and medium-thick skin grafting were performed in the second stage. Results: All patients successfully completed two stage operation. During the follow-up of 3 months and 24 months, all the 41 patients were satisfied with the morphology of reconstructed auricle. Conclusion: According to the costal cartilage status of adult patients, different costal cartilage carving techniques can be used for total auricle reconstruction to obtain ideal surgical results.
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Affiliation(s)
- X Wang
- Department of Plastic Reconstructive Surgery, Henan Plastic Surgery Hospital, Zhengzhou 450003, China
| | - Z P Zhang
- Department of Plastic Reconstructive Surgery, Henan Plastic Surgery Hospital, Zhengzhou 450003, China
| | - X L Guo
- Department of Plastic Reconstructive Surgery, Henan Plastic Surgery Hospital, Zhengzhou 450003, China
| | - Z F Yang
- Department of Plastic Reconstructive Surgery, Henan Plastic Surgery Hospital, Zhengzhou 450003, China
| | - T X Ma
- Department of Plastic Surgery, Henan Provincial People's Plastic Surger Hospital, Zhengzhou 450000, China
| | - Z W Zhang
- Department of Plastic Reconstructive Surgery, Henan Plastic Surgery Hospital, Zhengzhou 450003, China
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5
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Wu X, Li RF, Lin ZS, Xiao C, Liu B, Mai KL, Zhou HX, Zeng DY, Cheng S, Weng YC, Zhao J, Chen RF, Jiang HM, Chen LP, Deng LZ, Xie PF, Yang WM, Xia XS, Yang ZF. Coinfection with influenza virus and non-typeable Haemophilus influenzae aggregates inflammatory lung injury and alters gut microbiota in COPD mice. Front Microbiol 2023; 14:1137369. [PMID: 37065141 PMCID: PMC10098174 DOI: 10.3389/fmicb.2023.1137369] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Accepted: 03/15/2023] [Indexed: 04/01/2023] Open
Abstract
BackgroundAcute exacerbation of chronic obstructive pulmonary disease (AECOPD) is associated with high mortality rates. Viral and bacterial coinfection is the primary cause of AECOPD. How coinfection with these microbes influences host inflammatory response and the gut microbiota composition is not entirely understood.MethodsWe developed a mouse model of AECOPD by cigarette smoke exposure and sequential infection with influenza H1N1 virus and non-typeable Haemophilus influenzae (NTHi). Viral and bacterial titer was determined using MDCK cells and chocolate agar plates, respectively. The levels of cytokines, adhesion molecules, and inflammatory cells in the lungs were measured using Bio-Plex and flow cytometry assays. Gut microbiota was analyzed using 16S rRNA gene sequencing. Correlations between cytokines and gut microbiota were determined using Spearman’s rank correlation coefficient test.ResultsCoinfection with H1N1 and NTHi resulted in more severe lung injury, higher mortality, declined lung function in COPD mice. H1N1 enhanced NTHi growth in the lungs, but NTHi had no effect on H1N1. In addition, coinfection increased the levels of cytokines and adhesion molecules, as well as immune cells including total and M1 macrophages, neutrophils, monocytes, NK cells, and CD4 + T cells. In contrast, alveolar macrophages were depleted. Furthermore, coinfection caused a decline in the diversity of gut bacteria. Muribaculaceae, Lactobacillus, Akkermansia, Lachnospiraceae, and Rikenella were further found to be negatively correlated with cytokine levels, whereas Bacteroides was positively correlated.ConclusionCoinfection with H1N1 and NTHi causes a deterioration in COPD mice due to increased lung inflammation, which is correlated with dysbiosis of the gut microbiota.
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Affiliation(s)
- Xiao Wu
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Run-Feng Li
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
- Guangzhou Laboratory, Guangzhou, China
| | - Zheng-Shi Lin
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Chuang Xiao
- School of Pharmaceutical Science and Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming, China
| | - Bin Liu
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Kai-Lin Mai
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | | | - De-You Zeng
- School of Pharmaceutical Science and Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming, China
| | - Sha Cheng
- School of Pharmaceutical Science and Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming, China
| | - Yun-Ceng Weng
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Jin Zhao
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Rui-Feng Chen
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Hai-Ming Jiang
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Li-Ping Chen
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Ling-Zhu Deng
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Pei-Fang Xie
- The Affiliated Anning First Hospital and Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, China
| | - Wei-Min Yang
- School of Pharmaceutical Science and Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming, China
- Wei-Min Yang,
| | - Xue-Shan Xia
- The Affiliated Anning First Hospital and Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, China
- Xue-Shan Xia,
| | - Zi-Feng Yang
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
- Guangzhou Laboratory, Guangzhou, China
- Guangzhou Key Laboratory for Clinical Rapid Diagnosis and Early Warning of Infectious Diseases, Guangzhou, China
- State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Taipa, Macau SAR, China
- *Correspondence: Zi-Feng Yang,
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Wu DQ, Yang YS, Zhang WF, Lv ZJ, Yang ZF, Li Y. [Intravenous infusion of methylene blue to visualize the ureter in laparoscopic colorectal surgery]. Zhonghua Wei Chang Wai Ke Za Zhi 2022; 25:1098-1103. [PMID: 36562233 DOI: 10.3760/cma.j.cn441530-20220526-00229] [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: 12/24/2022]
Abstract
Objective: Intraoperative localization of the ureter can contribute to accurate dissection and minimize ureteral injury in colorectal surgery. We aim to summarize a single center's experience of fluorescence ureteral visualization using methylene blue (MB) and explore its visualization efficiency. Methods: This is a descriptive case-series-study. Clinical data of patients who had undergone laparoscopic colorectal surgery and fluorescence visualization of the ureter in the Gastrointestinal Surgery Department of Guangdong Provincial People's Hospital from March 2022 to May 2022 were retrospectively collected. Patients with incomplete surgery videos, renal insufficiency, or allergic reactions were excluded. MB was infused with 0.9% NaCl at 1.0 mg/kg in 100 mL of normal saline for 5 to 15 minutes during laparoscopic exploration. Imaging was performed using a device developed in-house by OptoMedic (Guangdong, China) that operates at 660nm to achieve excitation of MB. Clinical information, MB dosage, rate of successful fluorescence, time to fluorescence, operation time, blood loss, intraoperative blood oxygen levels, pathological staging, changes in renal function, and post-operative complications were retrospectively analyzed. Results: The study cohort comprised 27 patients (24 men and 3 women) with an average age of (60.25±16.95) years and an average body mass index of (21.72±3.42) kg/m2. The dosage of MB was 0.3-1.0 mg/kg and the infusion time was 5-15 minutes. Fluorescence signals were detected in all patients. The median time to signal detection was 20 (range, 10 to 40) minutes after MB infusion. The range of intraoperative blood oxygen fluctuation averaged 2.5% (range, 0 to 7.0%). The median change in creatine concentration was -1.3 (range, -17.2 to 29.2) µmol/L. No patients had complications associated with use of MB. Fluorescence visualization of the ureter was very valuable clinically in two patients (thick mesentery, stage T4). Conclusion: MB is a safe and effective means of visualizing the ureter by fluorescence during laparoscopic colorectal surgery, especially when the procedure is difficult. MB in a dosage of less than 1 mg/kg can slowly infused for more than 5 minutes during laparoscopic exploration. During the infusion, attention must be paid to blood oxygen fluctuations.
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Affiliation(s)
- D Q Wu
- Department of Gastrointestinal Surgery, Department of General Surgery, Guangdong Provincial Hospital, Guandong Academy of Medical Science, Guangzhou 510080, China The Second School of Clinical Medicine, Southern Medical University, Guangzhou 510515, China
| | - Y S Yang
- Department of Gastrointestinal Surgery, Department of General Surgery, Guangdong Provincial Hospital, Guandong Academy of Medical Science, Guangzhou 510080, China Shantou University Medical College, Shantou 515041, China
| | - W F Zhang
- Department of Gastrointestinal Surgery, Department of General Surgery, Guangdong Provincial Hospital, Guandong Academy of Medical Science, Guangzhou 510080, China Guangdong Medical University, Zhanjiang 524023, China
| | - Z J Lv
- Department of Gastrointestinal Surgery, Department of General Surgery, Guangdong Provincial Hospital, Guandong Academy of Medical Science, Guangzhou 510080, China
| | - Z F Yang
- Department of Gastrointestinal Surgery, Department of General Surgery, Guangdong Provincial Hospital, Guandong Academy of Medical Science, Guangzhou 510080, China
| | - Yong Li
- Department of Gastrointestinal Surgery, Department of General Surgery, Guangdong Provincial Hospital, Guandong Academy of Medical Science, Guangzhou 510080, China The Second School of Clinical Medicine, Southern Medical University, Guangzhou 510515, China
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Liu J, Meng J, Li R, Jiang H, Fu L, Xu T, Zhu GY, Zhang W, Gao J, Jiang ZH, Yang ZF, Bai LP. Integrated network pharmacology analysis, molecular docking, LC-MS analysis and bioassays revealed the potential active ingredients and underlying mechanism of Scutellariae radix for COVID-19. Front Plant Sci 2022; 13:988655. [PMID: 36186074 PMCID: PMC9520067 DOI: 10.3389/fpls.2022.988655] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Accepted: 08/08/2022] [Indexed: 06/16/2023]
Abstract
Scutellariae radix ("Huang-Qin" in Chinese) is a well-known traditional herbal medicine and popular dietary supplement in the world, extensively used in prescriptions of TCMs as adjuvant treatments for coronavirus pneumonia 2019 (COVID-19) patients in China. According to the differences in its appearance, Scutellariae radix can be classified into two kinds: ZiQin (1∼3 year-old Scutellariae baicalensis with hard roots) and KuQin (more than 3 year-old S. baicalensis with withered pithy roots). In accordance with the clinical theory of TCM, KuQin is superior to ZiQin in cooling down the heat in the lung. However, the potential active ingredients and underlying mechanisms of Scutellariae radix for the treatment of COVID-19 remain largely unexplored. It is still not clear whether there is a difference in the curative effect of ZiQin and KuQin for the treatment of COVID-19. In this research, network pharmacology, LC-MS based plant metabolomics, and in vitro bioassays were integrated to explore both the potential active components and mechanism of Scutellariae radix for the treatment of COVID-19. As the results, network pharmacology combined with molecular docking analysis indicated that Scutellariae radix primarily regulates the MAPK and NF-κB signaling pathways via active components such as baicalein and scutellarin, and blocks SARS-CoV-2 spike binding to human ACE2 receptors. In vitro bioassays showed that baicalein and scutellarein exhibited more potent anti-inflammatory and anti-infectious effects than baicalin, the component with the highest content in Scutellariae radix. Moreover, baicalein inhibited SARS-CoV-2's entry into Vero E6 cells with an IC50 value of 142.50 μM in a plaque formation assay. Taken together, baicalein was considered to be the most crucial active component of Scutellariae radix for the treatment of COVID-19 by integrative analysis. In addition, our bioassay study revealed that KuQin outperforms ZiQin in the treatment of COVID-19. Meanwhile, plant metabolomics revealed that baicalein was the compound with the most significant increase in KuQin compared to ZiQin, implying the primary reason for the superiority of KuQin over ZiQin in the treatment of COVID-19.
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Affiliation(s)
- Jiazheng Liu
- State Key Laboratory of Quality Research in Chinese Medicine, Macau Institute for Applied Research in Medicine and Health, Guangdong-Hong Kong-Macao Joint Laboratory of Respiratory Infectious Disease, Macau University of Science and Technology, Macao, Macao SAR, China
| | - Jieru Meng
- State Key Laboratory of Quality Research in Chinese Medicine, Macau Institute for Applied Research in Medicine and Health, Guangdong-Hong Kong-Macao Joint Laboratory of Respiratory Infectious Disease, Macau University of Science and Technology, Macao, Macao SAR, China
| | - Runfeng Li
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Haiming Jiang
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Lu Fu
- State Key Laboratory of Quality Research in Chinese Medicine, Macau Institute for Applied Research in Medicine and Health, Guangdong-Hong Kong-Macao Joint Laboratory of Respiratory Infectious Disease, Macau University of Science and Technology, Macao, Macao SAR, China
| | - Ting Xu
- State Key Laboratory of Quality Research in Chinese Medicine, Macau Institute for Applied Research in Medicine and Health, Guangdong-Hong Kong-Macao Joint Laboratory of Respiratory Infectious Disease, Macau University of Science and Technology, Macao, Macao SAR, China
| | - Guo-Yuan Zhu
- State Key Laboratory of Quality Research in Chinese Medicine, Macau Institute for Applied Research in Medicine and Health, Guangdong-Hong Kong-Macao Joint Laboratory of Respiratory Infectious Disease, Macau University of Science and Technology, Macao, Macao SAR, China
| | - Wei Zhang
- State Key Laboratory of Quality Research in Chinese Medicine, Macau Institute for Applied Research in Medicine and Health, Guangdong-Hong Kong-Macao Joint Laboratory of Respiratory Infectious Disease, Macau University of Science and Technology, Macao, Macao SAR, China
| | - Jin Gao
- Increasepharm (Hengqin) Institute Co., Ltd., Zhuhai, Guangdong, China
| | - Zhi-Hong Jiang
- State Key Laboratory of Quality Research in Chinese Medicine, Macau Institute for Applied Research in Medicine and Health, Guangdong-Hong Kong-Macao Joint Laboratory of Respiratory Infectious Disease, Macau University of Science and Technology, Macao, Macao SAR, China
| | - Zi-Feng Yang
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
- Guangzhou Key Laboratory for Clinical Rapid Diagnosis and Early Warning of Infectious Diseases, Guangzhou, Guangdong, China
| | - Li-Ping Bai
- State Key Laboratory of Quality Research in Chinese Medicine, Macau Institute for Applied Research in Medicine and Health, Guangdong-Hong Kong-Macao Joint Laboratory of Respiratory Infectious Disease, Macau University of Science and Technology, Macao, Macao SAR, China
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8
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Yang ZF, Zhan CP, Gong QQ, Zhang P, Zhang HD. [Investigation and analysis of occupational hazards in construction of power transmission and transformation project]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2022; 40:386-391. [PMID: 35680587 DOI: 10.3760/cma.j.cn121094-20210223-00102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Objective: To investigate the occupational hazard factors and exposure levels of workers during the construction of power transmission and transformation projects. Methods: Analysis and identification of occupational hazard factors were carried out for typical construction process of 6 power transmission projects and 3 substation projects in September 2018. The on-site occupational health investigation was carried out to detect and analyze the exposure levels of workers to occupational hazard factors. Results: The time weighted average concentration (C(TWA)) of crushing workers exposed to silica dust and welders exposed to welding fume in substation projects were 2.72 and 14.03 mg/m(3), respectively. The 8 h equivalent sound level results of exposure noise of carpenters in power transmission projects and crushing workers, reinforcement workers, carpenters, scaffolders, road builders in substation projects were 87.9, 92.5, 87.1, 92.5, 93.0 and 90.2 dB (A) , respectively. The 4-hour time equal energy frequency weighted vibration acceleration of hand-transmitted vibration of bricklayer in power transmission projects, bricklayer, general worker 3, road builder 1 and road builder 2 of substation projects were 5.36, 5.21, 5.28, 10.71 and 5.22 m/s(2), respectively. The effective irradiance of electric welding arc light of welders' limbs in power transmission projects and substation projects were 401.19, 319.68 μW/cm(2), respectively. All of the above exceeded the requirements of occupational exposure limits. The occupational radiation levels and exposure limits of hazardous chemical factors met the requirements of each post. Conclusion: During the construction of power transmission and transformation projects, the exposure levels of occupational hazard factors in multiple posts exceed the standard. The main responsibility of employers for occupational disease prevention and control should be implemented, and targeted comprehensive measures should be taken to reduce the exposure levels of occupational hazard factors of workers.
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Affiliation(s)
- Z F Yang
- Shandong First Medical University & Shandong Academy of Medical Sciences, Shandong Academy of Occupational Health and Occupational Medicine, Jinan 250062, China
| | - C P Zhan
- Shandong First Medical University & Shandong Academy of Medical Sciences, Shandong Academy of Occupational Health and Occupational Medicine, Jinan 250062, China
| | - Q Q Gong
- Electric Power Research Institute of State Grid Shandong Electric Power Company, Jinan 250002, China
| | - P Zhang
- Shandong First Medical University & Shandong Academy of Medical Sciences, Shandong Academy of Occupational Health and Occupational Medicine, Jinan 250062, China
| | - H D Zhang
- Shandong First Medical University & Shandong Academy of Medical Sciences, Shandong Academy of Occupational Health and Occupational Medicine, Jinan 250062, China
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9
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Ai YL, Tang JY, Zhou G, Zhang L, Qu LP, Huang SY, Yang ZQ, Yuan WA, Zhou YH, Wang T, Zhao JN, Sun XB, Xiao XH, Yang ZF, Liu QQ, Zhu MJ, Leng XY, Xie CG, Chai SY. [Thoughts on path of R&D and registration of innovative traditional Chinese medicine with synchronous transformation of "series prescriptions"]. Zhongguo Zhong Yao Za Zhi 2022; 47:1120-1125. [PMID: 35285213 DOI: 10.19540/j.cnki.cjcmm.20211027.501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Since the implementation of drug registration in China, the classification of Chinese medicine has greatly met the needs of public health and effectively guided the transformation, inheritance, and innovation of research achievements on traditional Chinese medicine(TCM). In the past 30 years, the development of new Chinese medicine has followed the registration transformation model of " one prescription for single drug". This model refers to the R&D and registration system of modern drugs, and approximates to the " law-abiding" medication method in TCM clinic, while it rarely reflects the sequential therapy of syndrome differentiation and comprehensive treatment with multiple measures. In 2017, Opinions on Deepening the Reform of Review and Approval System and Encouraging the Innovation of Drugs and Medical Devices released by the General Office of the CPC Central Committee and the General Office of the State Council pointed out that it is necessary to " establish and improve the registration and technical evaluation system in line with the characteristics of Chinese medicine, and handle the relationship between the traditional advantages of Chinese medicine and the requirements of modern drug research". Therefore, based on the development law and characteristics of TCM, clinical thinking should be highlighted in the current technical requirements and registration system of research and development of Chinese medicine. Based on the current situation of registration supervision of Chinese medicine and the modern drug research in China, the present study analyzed limitations and deficiency of " one prescription for single drug" in the research and development of Chinese medicine. Additionally, a new type of " series prescriptions" was proposed, which was consistent with clinical thinking and clinical reality. This study is expected to contribute to the independent innovation and high-quality development of the TCM industry.
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Affiliation(s)
- Yan-Ling Ai
- Hospital of Chengdu University of Traditional Chinese Medicine Chengdu 610075, China
| | - Jian-Yuan Tang
- Hospital of Chengdu University of Traditional Chinese Medicine Chengdu 610075, China
| | - Gang Zhou
- Center for Drug Evaluation,National Medical Products Administration Beijing 100022, China
| | - Lei Zhang
- Shanghai University of Traditional Chinese Medicine Shanghai 201203, China
| | - Li-Ping Qu
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine Chengdu 610037, China
| | - Shi-Yao Huang
- Hospital of Chengdu University of Traditional Chinese Medicine Chengdu 610075, China
| | - Zhong-Qi Yang
- the First Affiliated Hospital of Guangzhou University of Chinese Medicine Guangzhou 510405, China
| | - Wei-An Yuan
- Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine Shanghai 201203, China
| | - Yue-Hua Zhou
- Center for Drug Evaluation,National Medical Products Administration Beijing 100022, China
| | - Ting Wang
- Beijing University of Chinese Medicine Beijing 100029, China
| | - Jun-Ning Zhao
- State Key Laboratory of Quality Evaluation of Traditional Chinese Medicine, Natiorcal Administration of Traditional Chinese Medicine, Sichuan Academy of Traditional Chinese Medicine Chengdu 610041, China
| | - Xiao-Bo Sun
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences, Peking Union Medical College Beijing 100094, China
| | - Xiao-He Xiao
- Department of China Military Institute of Chinese Materia, the Fifth Medical Center, Chinese PLA (People's Liberation Army) General Hospital Beijing 100039, China
| | - Zi-Feng Yang
- State Key Laboratory of Respiratory Diseases,Guangzhou Medical University Guangzhou 510180, China
| | - Qing-Quan Liu
- Beijing Traditional Chinese Medicine Hospital,Capital Medical University Beijing 100010, China
| | - Ming-Jun Zhu
- the First Affiliated Hospital of Henan University of Chinese Medicine Zhengzhou 450099, China
| | - Xiang-Yang Leng
- Changchun University of Chinese Medicine Changchun 130117, China
| | - Chun-Guang Xie
- Hospital of Chengdu University of Traditional Chinese Medicine Chengdu 610075, China
| | - Song-Yan Chai
- Beijing Traditional Chinese Medicine Hospital,Capital Medical University Beijing 100010, China
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10
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Xing C, Yang ZF, Bo CX, Tang Q, Jia Q, Zhang ZL, Shao H. [Interventional effect of asiaticosdide on rats exposed to silica dust]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2022; 40:12-17. [PMID: 35255555 DOI: 10.3760/cma.j.cn121094-20210420-00218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Objective: To investigate the effect of asiaticoside for fibrosis in lung tissues of rats exposed to silica and to explore its possible mechanism. Methods: 144 SD male rats were randomly divided into control group, model group, positive drug control group, asiaticoside high-dose group, medium-dose group and low-dose group, each group included 24 rats. Rats in the control group were perfused with 1.0 ml of normal saline, and the other groups were given 1.0 ml 50 mg/ml SiO(2) suspension. Gavage of herbal was given from the next day after model establishment, once a day. Rats in the positive drug control group were administration with 30 mg/kg tetrandrine and rats in the low-dose group, medium-dose group and high-dose group were given 20 mg/kg, 40 mg/kg and 60 mg/kg asiaticoside for fibrosis respectively. Rats in the control group and the model group were given 0.9% normal saline. The rats were sacrificed in on the 14th, 28th and 56th day after intragastric administration and collect the lung tissues to detect the content of hydroxyproline, TGF-β(1) and IL-18, observe the pathological changes of the lung tissues by HE and Masson staining and determine the expressions of Col-I, a-SMA, TGF-β in lung tissues by Western Blot. Results: On the 14th day, 28th day and 56th day after model establishment, the lung tissues of rats in the model group showed obvious inflammatory response and accumulation of collagen fibers, and the degree of inflammation and fibrosis increased with time. The intervention of asiaticoside could effectively inhibit the pathological changes of lung tissues. The contents of hydroxyproline, IL-18 and TGF-β1 in lung tissues of model group were higher than those in the control group (P<0.05) , while the level of hydroxyproline, IL-18 and TGF-β1 in asiaticoside groups were significantly decreased, and the difference was statistically signicant (P<0.05) . Compared with the control group, the expression levels of Col-I, TGF-β1and α-SMA in lung tissue of model group were increased (P<0.05) , while the expression level of Col-I, TGF-β1 and α-SMA were decreased after the intervention of asiaticoside, and the difference was statistically signicant (P<0.05) . Conclusion: Asiaticoside can inhibit the increase of Col-I, TGF-β1 and α-SMA content in the SiO(2)-induced lung tissues of rats, reduce the release of TGF-β1 and IL-18 inflammatory factors in lung tissue, and then inhibit the synthesis and deposition of extracellular matrix in rat lung tissue, and improve silicosis fibrosis.
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Affiliation(s)
- C Xing
- Shandong First Medical University (Shandong Academy of Medical Sciences), Shandong Academy of Occupational Health and Occupational Medicine, Jinan 250062, China
| | - Z F Yang
- Shandong First Medical University (Shandong Academy of Medical Sciences), Shandong Academy of Occupational Health and Occupational Medicine, Jinan 250062, China
| | - C X Bo
- Shandong First Medical University (Shandong Academy of Medical Sciences), Shandong Academy of Occupational Health and Occupational Medicine, Jinan 250062, China
| | - Q Tang
- Shandong First Medical University (Shandong Academy of Medical Sciences), Shandong Academy of Occupational Health and Occupational Medicine, Jinan 250062, China
| | - Q Jia
- Shandong First Medical University (Shandong Academy of Medical Sciences), Shandong Academy of Occupational Health and Occupational Medicine, Jinan 250062, China
| | - Z L Zhang
- Shandong First Medical University (Shandong Academy of Medical Sciences), Shandong Academy of Occupational Health and Occupational Medicine, Jinan 250062, China
| | - H Shao
- Shandong First Medical University (Shandong Academy of Medical Sciences), Shandong Academy of Occupational Health and Occupational Medicine, Jinan 250062, China
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11
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Ling JY, Ding MM, Yang ZF, Zhao YD, Xie XY, Shi LS, Wang HM, Cao WT, Zhang JW, Hu HB, Cai Y, Wang H, Deng YH. Comparison of outcomes between neoadjuvant imatinib and upfront surgery in patients with localized rectal GIST: An inverse probability of treatment weighting analysis. J Surg Oncol 2021; 124:1442-1450. [PMID: 34494280 DOI: 10.1002/jso.26664] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Revised: 08/26/2021] [Accepted: 08/28/2021] [Indexed: 01/09/2023]
Abstract
BACKGROUND AND OBJECTIVES This study aimed to compare outcomes between neoadjuvant imatinib and upfront surgery in patients with localized rectal gastrointestinal stromal tumors (GIST) patients. METHODS Eighty-five patients with localized rectal GIST were divided into two groups: upfront surgery ± adjuvant imatinib (Group A, n = 33) and the neoadjuvant imatinib + surgery + adjuvant imatinib (Group B, n = 52). Baseline characteristics between groups were controlled for with inverse probability of treatment weighting (IPTW) adjusted analysis. RESULTS The response rate to neoadjuvant imatinib was 65.9%. After the IPTW-adjusted analysis, patients who underwent neoadjuvant therapy had better distant recurrence-free survival (DRFS) and disease-specific survival (DSS) compared with those who underwent upfront surgery (5-year DRFS 97.8 vs. 71.9%, hazard ratio [HR], 0.15; 95% CI, 0.03-0.87; p = 0.03; 5-year DSS 100 vs. 77.1%; HR, 0.11; 95% CI, 0.01-0.92; p = 0.04). While no significant association was found between overall survival (OS) and treatment groups (p = 0.07), 5-year OS was higher for the neoadjuvant group than upfront surgery group (97.8% vs. 71.9%; HR, 0.2; 95% CI, 0.03-1.15). CONCLUSIONS In patients with localized rectal GIST, neoadjuvant imatinib not only shrunk the tumor size but also decreased the risk of metastasis and tumor-related deaths when compared to upfront surgery and adjuvant imatinib alone.
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Affiliation(s)
- Jia-Yu Ling
- Department of Medical Oncology, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, Guangzhou, China
| | - Miao-Miao Ding
- Department of Medical Oncology, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, Guangzhou, China
| | - Zi-Feng Yang
- Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, Guangzhou, China.,Department of Colorectal Surgery, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Yan-Dong Zhao
- Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, Guangzhou, China.,Department of Pathology, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Xiao-Yu Xie
- Department of Medical Oncology, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, Guangzhou, China
| | - Li-Shuo Shi
- Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, Guangzhou, China.,Center for Clinical Research, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Huai-Ming Wang
- Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, Guangzhou, China.,Department of Colorectal Surgery, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Wu-Teng Cao
- Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, Guangzhou, China.,Department of Radiology, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Jian-Wei Zhang
- Department of Medical Oncology, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, Guangzhou, China
| | - Hua-Bin Hu
- Department of Medical Oncology, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, Guangzhou, China
| | - Yue Cai
- Department of Medical Oncology, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, Guangzhou, China
| | - Hui Wang
- Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, Guangzhou, China.,Department of Colorectal Surgery, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Yan-Hong Deng
- Department of Medical Oncology, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, Guangzhou, China
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12
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Li RF, Zhou XB, Zhou HX, Yang ZF, Jiang HM, Wu X, Li WJ, Qiu JJ, Mi JN, Chen M, Zhong NS, Zhu GY, Jiang ZH. Novel Fatty Acid in Cordyceps Suppresses Influenza A (H1N1) Virus-Induced Proinflammatory Response Through Regulating Innate Signaling Pathways. ACS Omega 2021; 6:1505-1515. [PMID: 33490810 PMCID: PMC7818636 DOI: 10.1021/acsomega.0c05264] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Accepted: 12/29/2020] [Indexed: 05/05/2023]
Abstract
Influenza virus (IV) infections usually cause acute lung injury characterized by exaggerated proinflammatory responses. The paucity of therapeutic strategies that target host immune response to attenuate lung injury poses a substantial challenge in management of IV infections. In this study, we chemically synthesized a novel fatty acid (2Z,4E)-deca-2,4-dienoic acid (DDEA) identified from Chinese Cordyceps by using UHPLC-Q-TOF-MS techniques. The DDEA did not inhibit H1N1 virus replication but attenuated proinflammatory responses by reducing mRNA and protein levels of TNF-α, IFN-α, IFN-β, IL-6, CXCL-8/IL-8, CCL-2/MCP-1, CXCL-10/IP-10, CCL-3/MIP-1α, and CCL-4/MIP-1β in A549 cells and U937-derived macrophages. The anti-inflammatory effect occurred through downregulations of TLR-3-, RIG-I-, and type I IFN-activated innate immune signaling pathways. Altogether, our results indicate that DDEA may potentially be used as an anti-inflammatory therapy for the treatment of IV infections.
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Affiliation(s)
- Run-Feng Li
- State
Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau (SAR) 519020, China
| | - Xiao-Bo Zhou
- State
Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau (SAR) 519020, China
| | | | - Zi-Feng Yang
- State
Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau (SAR) 519020, China
- State
Key Laboratory of Respiratory Disease, National Clinical Research
Center for Respiratory Disease, Guangzhou Institute of Respiratory
Health, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou 510120, China
- KingMed
Virology Diagnostic & Translational Center, Guangzhou 510000, China
- Guangdong-Hong
Kong-Macao Joint Laboratory of Infectious Respiratory Disease, Guangzhou 510000, China
| | - Hai-Ming Jiang
- State
Key Laboratory of Respiratory Disease, National Clinical Research
Center for Respiratory Disease, Guangzhou Institute of Respiratory
Health, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou 510120, China
| | - Xiao Wu
- State
Key Laboratory of Respiratory Disease, National Clinical Research
Center for Respiratory Disease, Guangzhou Institute of Respiratory
Health, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou 510120, China
| | - Wen-Jia Li
- Dongguan
HEC Cordyceps R&D Co.,Ltd, Dongguan 523850, China
| | - Jian-Jian Qiu
- Dongguan
HEC Cordyceps R&D Co.,Ltd, Dongguan 523850, China
| | - Jia-Ning Mi
- State
Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau (SAR) 519020, China
| | - Ming Chen
- State
Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau (SAR) 519020, China
| | - Nan-Shan Zhong
- State
Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau (SAR) 519020, China
- State
Key Laboratory of Respiratory Disease, National Clinical Research
Center for Respiratory Disease, Guangzhou Institute of Respiratory
Health, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou 510120, China
| | - Guo-Yuan Zhu
- State
Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau (SAR) 519020, China
| | - Zhi-Hong Jiang
- State
Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau (SAR) 519020, China
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13
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Wen HJ, Liu FL, Huang MX, Luo RH, He WB, Feng J, Chen FL, Cai QC, Ma HJ, Yang ZF, Zhou X, Shang Y, Lyu XM, Zhang DY, Xiao F, Shan H, He JX, Zheng YT, Wu CI. A proposal for clinical trials of COVID-19 treatment using homo-harringtonine. Natl Sci Rev 2021; 8:nwaa257. [PMID: 34676091 PMCID: PMC7665622 DOI: 10.1093/nsr/nwaa257] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Accepted: 10/09/2020] [Indexed: 01/02/2023] Open
Affiliation(s)
- Hai-Jun Wen
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, China
| | - Feng-Liang Liu
- Key Laboratory of Animal Models and Human Disease Mechanisms of Chinese Academy of Sciences/Key Laboratory of Bioactive Peptides of Yunnan Province, Kunming Institute of Zoology, Chinese Academy of Sciences, China
- Kunming National High-Level Bio-Safety Research Center for Non-Human Primates, Center for Biosafety Mega-Science, Kunming Institute of Zoology, Chinese Academy of Sciences, China
| | - Ming-Xing Huang
- Department of Infectious Diseases, The Fifth Affiliated Hospital, Sun Yat-sen University, China
| | - Rong-Hua Luo
- Key Laboratory of Animal Models and Human Disease Mechanisms of Chinese Academy of Sciences/Key Laboratory of Bioactive Peptides of Yunnan Province, Kunming Institute of Zoology, Chinese Academy of Sciences, China
- Kunming National High-Level Bio-Safety Research Center for Non-Human Primates, Center for Biosafety Mega-Science, Kunming Institute of Zoology, Chinese Academy of Sciences, China
| | - Wen-Bin He
- State Key Laboratory of Genetic Resources and Evolution, Kunming Institute of Zoology, Chinese Academy of Sciences, China
- Center for Excellence in Animal Evolution and Genetics, Chinese Academy of Sciences, China
| | - Jing Feng
- State Key Laboratory of Genetic Resources and Evolution, Kunming Institute of Zoology, Chinese Academy of Sciences, China
- Center for Excellence in Animal Evolution and Genetics, Chinese Academy of Sciences, China
| | - Fang-Liang Chen
- Kunming Police Dog Base of the Ministry of Public Security, China
| | - Qi-Chun Cai
- Cancer Center, Clifford Hospital, Jinan University, China
| | - Hua-Juan Ma
- Cancer Center, Clifford Hospital, Jinan University, China
| | - Zi-Feng Yang
- National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, First Affiliated Hospital of Guangzhou Medical University, State Key Laboratory of Respiratory Disease (Guangzhou Medical University), China
- Faculty of Chinese Medicine, Macau University of Science and Technology, China
| | - Xi Zhou
- Wuhan Institute of Virology, Center for Biosafety Mega-Science, Chinese Academy of Sciences, China
- Center for Translational Medicine, Wuhan Jinyintan Hospital, China
- Joint Laboratory of Infectious Diseases and Health, Wuhan Institute of Virology and Wuhan Jinyintan Hospital, China
| | - You Shang
- Joint Laboratory of Infectious Diseases and Health, Wuhan Institute of Virology and Wuhan Jinyintan Hospital, China
- Tongji Medical College, Huazhong University of Science and Technology, China
| | - Xue-Mei Lyu
- State Key Laboratory of Genetic Resources and Evolution, Kunming Institute of Zoology, Chinese Academy of Sciences, China
- Center for Excellence in Animal Evolution and Genetics, Chinese Academy of Sciences, China
| | - Ding-Yu Zhang
- Center for Translational Medicine, Wuhan Jinyintan Hospital, China
- Joint Laboratory of Infectious Diseases and Health, Wuhan Institute of Virology and Wuhan Jinyintan Hospital, China
| | - Fei Xiao
- Department of Infectious Diseases, The Fifth Affiliated Hospital, Sun Yat-sen University, China
- Guangdong Provincial Key Laboratory of Biomedical Imaging and Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital, Sun Yat-sen University, China
| | - Hong Shan
- Guangdong Provincial Key Laboratory of Biomedical Imaging and Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital, Sun Yat-sen University, China
- Center for Interventional Medical, The Fifth Affiliated Hospital, Sun Yat-sen University, China
| | - Jian-Xing He
- National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, First Affiliated Hospital of Guangzhou Medical University, State Key Laboratory of Respiratory Disease (Guangzhou Medical University), China
| | - Yong-Tang Zheng
- Key Laboratory of Animal Models and Human Disease Mechanisms of Chinese Academy of Sciences/Key Laboratory of Bioactive Peptides of Yunnan Province, Kunming Institute of Zoology, Chinese Academy of Sciences, China
- Kunming National High-Level Bio-Safety Research Center for Non-Human Primates, Center for Biosafety Mega-Science, Kunming Institute of Zoology, Chinese Academy of Sciences, China
| | - Chung-I Wu
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, China
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14
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Cheng LL, Guan WJ, Duan CY, Zhang NF, Lei CL, Hu Y, Chen AL, Li SY, Zhuo C, Deng XL, Cheng FJ, Gao Y, Zhang JH, Xie JX, Peng H, Li YX, Wu XX, Liu W, Peng H, Wang J, Xiao GM, Chen PY, Wang CY, Yang ZF, Zhao JC, Zhong NS. Effect of Recombinant Human Granulocyte Colony-Stimulating Factor for Patients With Coronavirus Disease 2019 (COVID-19) and Lymphopenia: A Randomized Clinical Trial. JAMA Intern Med 2021; 181:71-78. [PMID: 32910179 PMCID: PMC7489414 DOI: 10.1001/jamainternmed.2020.5503] [Citation(s) in RCA: 46] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
IMPORTANCE Lymphopenia is common and correlates with poor clinical outcomes in patients with coronavirus disease 2019 (COVID-19). OBJECTIVE To determine whether a therapy that increases peripheral blood leukocyte and lymphocyte cell counts leads to clinical improvement in patients with COVID-19. DESIGN, SETTING AND PARTICIPANTS Between February 18 and April 10, 2020, we conducted an open-label, multicenter, randomized clinical trial at 3 participating centers in China. The main eligibility criteria were pneumonia, a blood lymphocyte cell count of 800 per μL (to convert to ×109/L, multiply by 0.001) or lower, and no comorbidities. Severe acute respiratory syndrome coronavirus 2 infection was confirmed with reverse-transcription polymerase chain reaction testing. EXPOSURES Usual care alone, or usual care plus 3 doses of recombinant human granulocyte colony-stimulating factor (rhG-CSF, 5 μg/kg, subcutaneously at days 0-2). MAIN OUTCOMES AND MEASURES The primary end point was the time from randomization to improvement of at least 1 point on a 7-category disease severity score. RESULTS Of 200 participants, 112 (56%) were men and the median (interquartile range [IQR]) age was 45 (40-55) years. There was random assignment of 100 patients (50%) to the rhG-CSF group and 100 (50%) to the usual care group. Time to clinical improvement was similar between groups (rhG-CSF group median of 12 days (IQR, 10-16 days) vs usual care group median of 13 days (IQR, 11-17 days); hazard ratio, 1.28; 95% CI, 0.95-1.71; P = .06). For secondary end points, the proportion of patients progressing to acute respiratory distress syndrome, sepsis, or septic shock was lower in the rhG-CSF group (rhG-CSF group, 2% vs usual care group, 15%; difference, -13%; 95%CI, -21.4% to -5.4%). At 21 days, 2 patients (2%) had died in the rhG-CSF group compared with 10 patients (10%) in the usual care group (hazard ratio, 0.19; 95%CI, 0.04-0.88). At day 5, the lymphocyte cell count was higher in the rhG-CSF group (rhG-CSF group median of 1050/μL vs usual care group median of 620/μL; Hodges-Lehmann estimate of the difference in medians, 440; 95% CI, 380-490). Serious adverse events, such as sepsis or septic shock, respiratory failure, and acute respiratory distress syndrome, occurred in 29 patients (14.5%) in the rhG-CSF group and 42 patients (21%) in the usual care group. CONCLUSION AND RELEVANCE In preliminary findings from a randomized clinical trial, rhG-CSF treatment for patients with COVID-19 with lymphopenia but no comorbidities did not accelerate clinical improvement, but the number of patients developing critical illness or dying may have been reduced. Larger studies that include a broader range of patients with COVID-19 should be conducted. TRIAL REGISTRATION Chinese Clinical Trial Registry: ChiCTR2000030007.
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Affiliation(s)
- Lin-Ling Cheng
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, China.,Guangzhou Eighth People's Hospital, Guangzhou Medical University, Guangzhou, China
| | - Wei-Jie Guan
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, China
| | - Chong-Yang Duan
- State Key Laboratory of Organ Failure Research, National Clinical Research Center for Kidney Disease, Department of Biostatistics, School of Public Health, Southern Medical University, Guangzhou, China
| | - Nuo-Fu Zhang
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, China
| | - Chun-Liang Lei
- Guangzhou Eighth People's Hospital, Guangzhou Medical University, Guangzhou, China
| | - Yu Hu
- Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Ai-Lan Chen
- Medical Department, Hankou Hospital of Wuhan City, Wuhan, China
| | - Shi-Yue Li
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, China.,Guangzhou Eighth People's Hospital, Guangzhou Medical University, Guangzhou, China
| | - Chao Zhuo
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, China
| | - Xi-Long Deng
- Guangzhou Eighth People's Hospital, Guangzhou Medical University, Guangzhou, China
| | - Fan-Jun Cheng
- Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Yong Gao
- Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Jian-Heng Zhang
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, China.,Medical Department, Hankou Hospital of Wuhan City, Wuhan, China
| | - Jia-Xing Xie
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, China.,Medical Department, Hankou Hospital of Wuhan City, Wuhan, China
| | - Hong Peng
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, China.,Medical Department, Hankou Hospital of Wuhan City, Wuhan, China
| | - Ying-Xian Li
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, China.,Medical Department, Hankou Hospital of Wuhan City, Wuhan, China
| | - Xiao-Xiong Wu
- Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Wen Liu
- Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Hui Peng
- Guangzhou Eighth People's Hospital, Guangzhou Medical University, Guangzhou, China
| | - Jian Wang
- Guangzhou Eighth People's Hospital, Guangzhou Medical University, Guangzhou, China
| | - Guang-Ming Xiao
- Guangzhou Eighth People's Hospital, Guangzhou Medical University, Guangzhou, China
| | - Ping-Yan Chen
- State Key Laboratory of Organ Failure Research, National Clinical Research Center for Kidney Disease, Department of Biostatistics, School of Public Health, Southern Medical University, Guangzhou, China
| | - Chun-Yan Wang
- Department of Haematology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Zi-Feng Yang
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, China
| | - Jin-Cun Zhao
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, China
| | - Nan-Shan Zhong
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, China
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15
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Zhou HX, Li RF, Wang YF, Shen LH, Cai LH, Weng YC, Zhang HR, Chen XX, Wu X, Chen RF, Jiang HM, Wang C, Yang M, Lu J, Luo XD, Jiang Z, Yang ZF. Total alkaloids from Alstonia scholaris inhibit influenza a virus replication and lung immunopathology by regulating the innate immune response. Phytomedicine 2020; 77:153272. [PMID: 32702592 DOI: 10.1016/j.phymed.2020.153272] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Revised: 06/01/2020] [Accepted: 06/28/2020] [Indexed: 06/11/2023]
Abstract
BACKGROUND Alstonia scholaris is a folk medicine used to treat cough, asthma and chronic obstructive pulmonary disease in China. Total alkaloids (TA) from A. scholaris exhibit anti-inflammatory properties in acute respiratory disease, which suggests their possible anti-inflammatory effect on influenza virus infection. PURPOSE To assess the clinical use of TA by demonstrating their anti-influenza and anti-inflammatory effects and the possible mechanism underlying the effect of TA on influenza A virus (IAV) infection in vitro and to reveal the inhibitory effect of TA on lung immunopathology caused by IAV infection. METHODS Antiviral and anti-inflammatory activities were assessed in Madin-Darby canine kidney (MDCK) and A549 cells and U937-derived macrophages infected with influenza A/PR/8/34 (H1N1) virus. Proinflammatory cytokine levels were measured by real-time quantitative PCR and Bio-Plex assays. The activation of innate immune signaling induced by H1N1 virus in the absence or presence of TA was detected in A549 cells by Western blot. Furthermore, mice were infected intranasally with H1N1 virus and treated with TA (50, 25 and 12.5 mg/kg/d) or oseltamivir (60 mg/kg/d) for 5 days in vivo. The survival rates and body weight were recorded, and the viral titer, proinflammatory cytokine levels, innate immune cell populations and histopathological changes in the lungs were analyzed. RESULTS TA significantly inhibited viral replication in A549 cells and U937-derived macrophages and markedly reduced cytokine and chemokine production at the mRNA and protein levels. Furthermore, TA blocked the activation of pattern recognition receptor (PRR)- and IFN-activated signal transduction in A549 cells. Critically, TA also increased the survival rate, reduced the viral titer, suppressed proinflammatory cytokine production and innate immune cell infiltration and improved lung histopathology in a lethal PR8 mouse model. CONCLUSION TA exhibits anti-viral and anti-inflammatory effects against IAV infection by interfering with PRR- and IFN-activated signal transduction.
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Affiliation(s)
- Hong-Xia Zhou
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, Guangdong, 510120, China; Dongguan People's Hospital, Dongguan, 523000, China
| | - Run-Feng Li
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, Guangdong, 510120, China
| | - Yi-Feng Wang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China
| | - Li-Han Shen
- Dongguan People's Hospital, Dongguan, 523000, China
| | - Li-Hua Cai
- Dongguan People's Hospital, Dongguan, 523000, China
| | - Yun-Ceng Weng
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, Guangdong, 510120, China
| | | | - Xin-Xin Chen
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, Guangdong, 510120, China
| | - Xiao Wu
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, Guangdong, 510120, China
| | - Rui-Feng Chen
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, Guangdong, 510120, China
| | - Hai-Ming Jiang
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, Guangdong, 510120, China
| | - Caiyun Wang
- State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau (SAR), 519020, China
| | - Mingrong Yang
- State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau (SAR), 519020, China
| | - Jingguang Lu
- State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau (SAR), 519020, China
| | - Xiao-Dong Luo
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, Guangdong, 510120, China; State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China.
| | - Zhihong Jiang
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, Guangdong, 510120, China; State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau (SAR), 519020, China; Guangdong-Hong Kong-Macao Joint Laboratory of Infectious Respiratory Disease, 510000, China
| | - Zi-Feng Yang
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, Guangdong, 510120, China; State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau (SAR), 519020, China; KingMed Virology Diagnostic & Translational Center, 510000, China; Guangdong-Hong Kong-Macao Joint Laboratory of Infectious Respiratory Disease, 510000, China.
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16
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Zhao YL, Yang ZF, Wu BF, Shang JH, Liu YP, Wang XH, Luo XD. Indole alkaloids from leaves of Alstonia scholaris (L.) R. Br. protect against emphysema in mice. J Ethnopharmacol 2020; 259:112949. [PMID: 32387234 DOI: 10.1016/j.jep.2020.112949] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Revised: 03/20/2020] [Accepted: 05/02/2020] [Indexed: 06/11/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Alstonia scholaris (L.) R. Br. (Apocynaceae) is a medicinal plant in China traditionally used to treat pulmonary diseases, including bronchitis, whooping cough, asthma and chronic obstructive pulmonary disease. AIM OF THE STUDY To provide experimental data supporting clinical adaptation of total indole alkaloids ( TA) from A. scholaris leaves for treating emphysema. MATERIALS AND METHODS An emphysema model was induced by a single intratracheal instillation of porcine pancreatic elastase followed by administration of TA and four main alkaloid components (scholaricine, 19-epischolaricine, vallesamine, and picrinine) for 30 consecutive days. Cytokine levels, histopathological parameters and protein expression in lung tissues were examined. RESULTS Administering the TA, picrinine, scholaricine, 19-epischolaricine and vallesamine for 30 days effectively inhibited inflammatory cell accumulation and invasion in the lung tissue and relieved pulmonary tissue injury. Oxygen saturation was enhanced, and interleukin (IL)-1β, monocyte-chemo attractive peptide 1, IL-11, matrix metalloproteinase-12, transforming growth factor-β and vascular endothelial growth factor levels were significantly reduced, likely by suppressing overactivation of alveolar macrophages and pulmonary fibrosis. The elastin content was markedly elevated, and fibronectin was reduced. Bcl-2 expression was significantly increased, and nuclear factor-κB and β-catenin levels were decreased. CONCLUSIONS TA can be potentially used as an effective novel drug for pulmonary emphysema and exerts its effects through not only inhibiting inflammation of the airway wall and airflow resistance but also promoting lung elastic recoil and protease/anti-protease balance.
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Affiliation(s)
- Yun-Li Zhao
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming 650091, PR China; State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, PR China
| | - Zi-Feng Yang
- Guangzhou Medical University, Guangzhou, 511436, PR China
| | - Bai-Fen Wu
- Yunnan University of Business Management, Yunnan Province, Kunming 650500, P. R. China
| | - Jian-Hua Shang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, PR China
| | - Ya-Ping Liu
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, PR China
| | - Xin-Hua Wang
- Guangzhou Medical University, Guangzhou, 511436, PR China.
| | - Xiao-Dong Luo
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming 650091, PR China; State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, PR China.
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17
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Chan LLY, Hui KPY, Kuok DIT, Bui CHT, Ng KC, Mok CKP, Yang ZF, Guan W, Poon LLM, Zhong N, Peiris JSM, Nicholls JM, Chan MCW. Risk Assessment of the Tropism and Pathogenesis of the Highly Pathogenic Avian Influenza A/H7N9 Virus Using Ex Vivo and In Vitro Cultures of Human Respiratory Tract. J Infect Dis 2020; 220:578-588. [PMID: 31001638 DOI: 10.1093/infdis/jiz165] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2018] [Accepted: 04/15/2019] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Highly pathogenic avian influenza (HPAI)-H7N9 virus arising from low pathogenic avian influenza (LPAI)-H7N9 virus with polybasic amino acid substitutions in the hemagglutinin was detected in 2017. METHODS We compared the tropism, replication competence, and cytokine induction of HPAI-H7N9, LPAI-H7N9, and HPAI-H5N1 in ex vivo human respiratory tract explants, in vitro culture of human alveolar epithelial cells (AECs) and pulmonary microvascular endothelial cells (HMVEC-L). RESULTS Replication competence of HPAI- and LPAI-H7N9 were comparable in ex vivo cultures of bronchus and lung. HPAI-H7N9 predominantly infected AECs, whereas limited infection was observed in bronchus. The reduced tropism of HPAI-H7N9 in bronchial epithelium may explain the lack of human-to-human transmission despite a number of mammalian adaptation markers. Apical and basolateral release of virus was observed only in HPAI-H7N9- and H5N1-infected AECs regardless of infection route. HPAI-H7N9, but not LPAI-H7N9 efficiently replicated in HMVEC-L. CONCLUSIONS Our findings demonstrate that a HPAI-H7N9 virus efficiently replicating in ex vivo cultures of human bronchus and lung. The HPAI-H7N9 was more efficient at replicating in human AECs and HMVEC-L than LPAI-H7N9 implying that endothelial tropism may involve in pathogenesis of HPAI-H7N9 disease.
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Affiliation(s)
- Louisa L Y Chan
- School of Public Health, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong Special Administrative Region (SAR), China
| | - Kenrie P Y Hui
- School of Public Health, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong Special Administrative Region (SAR), China
| | - Denise I T Kuok
- School of Public Health, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong Special Administrative Region (SAR), China
| | - Christine H T Bui
- School of Public Health, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong Special Administrative Region (SAR), China
| | - Ka-Chun Ng
- School of Public Health, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong Special Administrative Region (SAR), China
| | - Chris K P Mok
- The HKU-Pasteur Research Pole, School of Public Health, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China.,State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, First Affiliated Hospital of Guangzhou Medical University, China
| | - Zi-Feng Yang
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, First Affiliated Hospital of Guangzhou Medical University, China.,Macau University of Science and Technology, Macau, China
| | - Wenda Guan
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, First Affiliated Hospital of Guangzhou Medical University, China
| | - Leo L M Poon
- School of Public Health, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong Special Administrative Region (SAR), China
| | - Nanshan Zhong
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, First Affiliated Hospital of Guangzhou Medical University, China
| | - J S Malik Peiris
- School of Public Health, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong Special Administrative Region (SAR), China
| | - John M Nicholls
- Department of Pathology, Queen Mary Hospital, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China
| | - Michael C W Chan
- School of Public Health, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong Special Administrative Region (SAR), China
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18
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Li L, Zhang L, Mo JH, Li YY, Xia JY, Bai XB, Xie PF, Liang JY, Yang ZF, Chen QY. Efficacy of indoor air purification in the treatment of Artemisia pollen-allergic rhinitis: A randomised, double-blind, clinical controlled trial. Clin Otolaryngol 2020; 45:394-401. [PMID: 32058675 PMCID: PMC7317381 DOI: 10.1111/coa.13514] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Revised: 01/29/2020] [Accepted: 02/09/2020] [Indexed: 12/01/2022]
Abstract
Objectives To evaluate the clinical efficacy of a high‐efficiency air purifier in patients with allergic rhinitis. Design We conducted a randomised, double‐blind, clinical controlled trial with active and inactive versions of an air purifier. Our study included patients with allergic rhinitis who were sensitive to Artemisia pollen and treatment of the indoor environment using air filtration at night. We evaluated the clinical efficacy of indoor air filtration during the Artemisia pollen scattering season in Yulin City in Shanxi Province, China. Setting The First Hospital of Yulin (Yulin City, Shanxi Province, China). Participants A total of 90 patients with allergic rhinitis who were sensitive to allergens of Artemisia pollen were randomly assigned to one of two groups in equal numbers. Main outcome measures The primary outcome measure was the difference in visual analogue scale scores from baseline. Secondary outcomes were changes from baseline in nasal symptoms, allergy symptom scores, responses to the Rhinoconjunctivitis Quality of Life Questionnaire, Epworth Sleepiness Scale scores and tolerability scores for the air purifier. Results Based on the allergy symptom score, we found significant differences in rhinitis symptoms between the groups who used the active versus the inactive air purifier. Conclusions The results of our investigation demonstrated the health benefits of particle filtration.
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Affiliation(s)
- Li Li
- The First Hospital of Yulin, The Second Affiliated Hospital, Yanan University, Yan'an, China
| | - Li Zhang
- The First Hospital of Yulin, The Second Affiliated Hospital, Yanan University, Yan'an, China
| | - Jin-Han Mo
- Beijing Key Laboratory of Indoor Air Quality Evaluation and Control, Tsinghua University, Beijing, China
| | - Yun-Ying Li
- Guangdong Provincial Hospital of Chinese Medicine, The Second Affiliated Hospital, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Ji-Yan Xia
- Guangdong Provincial Hospital of Chinese Medicine, The Second Affiliated Hospital, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Xiao-Bing Bai
- The First Hospital of Yulin, The Second Affiliated Hospital, Yanan University, Yan'an, China
| | - Pei-Fang Xie
- State Key Laboratory of Respiratory Diseases, Guangzhou Institute of Respiratory Disease, National Clinical Centre of Respiratory Disease, The First Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Jing-Yi Liang
- State Key Laboratory of Respiratory Diseases, Guangzhou Institute of Respiratory Disease, National Clinical Centre of Respiratory Disease, The First Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Zi-Feng Yang
- State Key Laboratory of Respiratory Diseases, Guangzhou Institute of Respiratory Disease, National Clinical Centre of Respiratory Disease, The First Affiliated Hospital, Guangzhou Medical University, Guangzhou, China.,State Key Laboratory of Quality Research in Chinese Medicines, Macau University of Science and Technology, Macau, China
| | - Qiao-Yan Chen
- Guangdong Provincial Hospital of Chinese Medicine, The Second Affiliated Hospital, Guangzhou University of Chinese Medicine, Guangzhou, China
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19
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Yau LF, Chan KM, Yang CG, Ip SW, Kang Y, Mai ZT, Tong TT, Jiang ZH, Yang ZF, Wang JR. Comprehensive Glycomic Profiling of Respiratory Tract Tissues of Tree Shrews by TiO 2-PGC Chip Mass Spectrometry. J Proteome Res 2020; 19:1470-1480. [PMID: 32129075 DOI: 10.1021/acs.jproteome.9b00727] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Due to its relatively small size, homology to humans, and susceptibility to human viruses, the tree shrew becomes an ideal alternative animal model for the study of human viral infectious diseases. However, there is still no report for the comprehensive glycan profile of the respiratory tract tissues in tree shrews. In this study, we characterized the structural diversity of N-glycans in the respiratory tract of tree shrews using our well-established TiO2-PGC chip-Q-TOF-MS method. As a result, a total of 219 N-glycans were identified. Moreover, each identified N-glycan was quantitated by a high sensitivity and accurate MRM method, in which 13C-labeled internal standards were used to correct the inherent run-to-run variation in MS detection. Our results showed that the N-glycan composition in the turbinate and lung was significantly different from the soft palate, trachea, and bronchus. Meanwhile, 28 high-level N-glycans in turbinate were speculated to be correlated with the infection of H1N1 virus A/California/04/2009. This study is the first to reveal the comprehensive glycomic profile of the respiratory tract of tree shrews. Our results also help to better understand the role of glycan receptors in human influenza infection and pathogenesis.
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Affiliation(s)
- Lee-Fong Yau
- State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau, China
| | - Ka-Man Chan
- State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau, China
| | - Chun-Guang Yang
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou University, Guangzhou 510120, Guangdong, China
| | - Sun-Wai Ip
- State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau, China
| | - Yue Kang
- State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau, China
| | - Zhi-Tong Mai
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou University, Guangzhou 510120, Guangdong, China
| | - Tian-Tian Tong
- State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau, China
| | - Zhi-Hong Jiang
- State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau, China
| | - Zi-Feng Yang
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou University, Guangzhou 510120, Guangdong, China
| | - Jing-Rong Wang
- State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau, China
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Lü YH, Li SY, Li ZH, Tao RY, Shao Y, Hu Q, Yang ZF, Chen YJ. Quantitative Expression of RNA from Frozen Organs and Formaldehyde-fixed and Paraffin-embedded Tissues. Fa Yi Xue Za Zhi 2019; 35:387-392. [PMID: 31532143 DOI: 10.12116/j.issn.1004-5619.2019.04.001] [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] [Subscribe] [Scholar Register] [Received: 07/12/2018] [Indexed: 11/30/2022]
Abstract
Abstract Objective Quantitative analysis and comparison of the expression of ribonucleic acid (RNA) from frozen organs and formaldehyde-fixed and paraffin-embedded (FFPE) tissues. Methods Frozen specimens of human brain, myocardium and liver tissues as well as FFPE samples at different postmortem intervals were collected and mass concentration of RNA was extracted and detected. Reverse transcription-quantitative polymerase chain reaction (RT-qPCR) technology was used to analyze the amplification efficiency and relative expression of each RNA marker. Results The mass concentration and integrity of RNA extracted from FFPE samples were relatively low compared with frozen specimens. The amplification efficiency of RNA markers was related with RNA species and the length of amplification products. Among them, glyceraldehyde-3-phosphate dehydrogenase (GAPDH) and β-actin (ACTB) with relatively long amplification products failed to achieve optimal amplification efficiency, whereas 5S ribosomal RNA (5S rRNA) achieved ideal amplification efficiency and showed quite stable expression across various tissues, therefore it was chosen as internal reference marker. The expression quantity of GAPDH and ACTB in frozen specimens with longer postmortem intervals and in FFPE samples with relatively long amplification products was decreased. The expressions of tissue-specific microRNAs (miRNAs), GAPDH and ACTB with relatively short amplification products had consistency in the same tissues and FFPE samples. Conclusion Through standardizing the RT-qPCR experiment, selecting the appropriate RNA marker and designing primers of appropriate product length, RNA expression levels of FFPE samples can be accurately quantified.
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Affiliation(s)
- Y H Lü
- School of Basic Medical Sciences, Shanghai University of Medicine & Health Sciences, Shanghai 201318, China.,Shanghai Key Laboratory of Forensic Medicine, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China.,West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu 610065, China
| | - S Y Li
- Shanghai Key Laboratory of Forensic Medicine, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China
| | - Z H Li
- School of Basic Medical Sciences, Shanghai University of Medicine & Health Sciences, Shanghai 201318, China
| | - R Y Tao
- Shanghai Key Laboratory of Forensic Medicine, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China.,West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu 610065, China
| | - Y Shao
- Shanghai Key Laboratory of Forensic Medicine, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China
| | - Q Hu
- School of Basic Medical Sciences, Shanghai University of Medicine & Health Sciences, Shanghai 201318, China
| | - Z F Yang
- School of Basic Medical Sciences, Shanghai University of Medicine & Health Sciences, Shanghai 201318, China
| | - Y J Chen
- Shanghai Key Laboratory of Forensic Medicine, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China.,West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu 610065, China
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Zhang L, Shen ZL, Feng Y, Li DQ, Zhang NN, Deng YQ, Qi XP, Sun XM, Dai JJ, Yang CG, Yang ZF, Qin CF, Xia XS. Infectivity of Zika virus on primary cells support tree shrew as animal model. Emerg Microbes Infect 2019; 8:232-241. [PMID: 30866776 PMCID: PMC6455147 DOI: 10.1080/22221751.2018.1559707] [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] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Zika virus (ZIKV) is a mosquito-borne flavivirus that caused the public health emergency. Recently, we have proved a novel small animal tree shrew was susceptive to ZIKV infection and presented the most common rash symptoms as ZIKV patients. Here we further cultured the primary cells from different tissues of this animal to determine the tissue tropism of ZIKV infection in vitro. The results showed that the primary cells from tree shrew kidney, lung, liver, skin and aorta were permissive to ZIKV infection and could support viral replication by the detection of viral specific RNA intra- and extra-cells. In comparing, the skin fibroblast and vascular endothelial cells were highly permissive to ZIKV infection with high releasing of active virus particles in supernatants proved by its infectivity in established neonatal mouse model. The expressions of ZIKV envelop and nonstructural protein-1, and the effects and strong immune response of primary tree shrew cells were also detected followed by ZIKV infection. These findings provide powerful in vitro cell-level evidence to support tree shrew as animal model of ZIKV infection and may help to explain the rash manifestations in vivo.
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Affiliation(s)
- Li Zhang
- a Faculty of Environmental Science and Engineering , Kunming University of Science and Technology , Kunming , People's Republic of China.,b Faculty of Life Science and Technology, Yunnan Provincial Center for Molecular Medicine , Kunming University of Science and Technology , Kunming , People's Republic of China
| | - Zhi-Li Shen
- b Faculty of Life Science and Technology, Yunnan Provincial Center for Molecular Medicine , Kunming University of Science and Technology , Kunming , People's Republic of China
| | - Yue Feng
- b Faculty of Life Science and Technology, Yunnan Provincial Center for Molecular Medicine , Kunming University of Science and Technology , Kunming , People's Republic of China
| | - Dao-Qun Li
- b Faculty of Life Science and Technology, Yunnan Provincial Center for Molecular Medicine , Kunming University of Science and Technology , Kunming , People's Republic of China
| | - Na-Na Zhang
- c State Key Laboratory of Pathogen and Biosecurity , Beijing Institute of Microbiology and Epidemiology , Beijing , People's Republic of China
| | - Yong-Qiang Deng
- c State Key Laboratory of Pathogen and Biosecurity , Beijing Institute of Microbiology and Epidemiology , Beijing , People's Republic of China
| | - Xiao-Peng Qi
- d Key Laboratory of Animal Models and Human Disease Mechanisms , Kunming Institute of Zoology, Chinese Academy of Sciences , Kunming , People's Republic of China
| | - Xiao-Mei Sun
- e Center of Tree Shrew Germplasm Resources , Institute of Medical Biology, Chinese Academy of Medical Science and Peking Union Medical College , Kunming , People's Republic of China
| | - Jie-Jie Dai
- e Center of Tree Shrew Germplasm Resources , Institute of Medical Biology, Chinese Academy of Medical Science and Peking Union Medical College , Kunming , People's Republic of China
| | - Chun-Guang Yang
- f State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease , First Affiliated Hospital of Guagnzhou Medical University , Guangzhou , People's Republic of China
| | - Zi-Feng Yang
- f State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease , First Affiliated Hospital of Guagnzhou Medical University , Guangzhou , People's Republic of China
| | - Cheng-Feng Qin
- c State Key Laboratory of Pathogen and Biosecurity , Beijing Institute of Microbiology and Epidemiology , Beijing , People's Republic of China
| | - Xue-Shan Xia
- b Faculty of Life Science and Technology, Yunnan Provincial Center for Molecular Medicine , Kunming University of Science and Technology , Kunming , People's Republic of China
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Yang ZF, Yang Y, Zhang RL, Jia CL, Li ZP, Wang WR, Zhang H, Li SS, Bao YX. [Effect of microRNA-27a-3p on proliferation, apoptosis and cell cycle of hepatoma cells]. Zhonghua Gan Zang Bing Za Zhi 2019; 27:198-203. [PMID: 30929336 DOI: 10.3760/cma.j.issn.1007-3418.2019.03.006] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the effect of miR-27a-3p on proliferation, apoptosis and cell cycle of hepatoma cells. Methods: A quantitative real-time polymerase chain reaction (qPCR) was used to detect differential expression of miR-27a-3p in normal hepatic epithelial cells (L02) and hepatoma cells (HepG2 and PLC). Cell experiment was divided into four groups: HepG2 overexpression cells, Mi-27a-3p overexpression group (Mi-27a) and negative control group (Mi-Con); PLC knockdown cells, Mi-27a-3p knockdown group (Mi-inhibitor-27a) and negative control group (Mi-inhibitor-Con). The expression of microRNA-27a-3p in each group after transfection was detected by qPCR analysis. MTT assay was used to detect the cell proliferation. Flow cytometry was used to detect the apoptosis and cell cycle. One-way ANOVA was used for multiple comparisons, and t-test was used to compare two groups. Results: qPCR results showed that the expression levels of miR-27a-3p in L02, HepG2 and PLC increased sequentially, and the relative expression levels were 1.07 ± 0.04, 4.81 ± 0.64 and 11.31 ± 0.92, respectively (P < 0.05). MTT assay showed that the cell viability of HepG2 cells transfected with miR-27a-3p overexpression plasmid was significantly decreased compared with the negative control group (P < 0.05). The apoptosis assay showed that the apoptosis rate of miR-27a-3p overexpression group was higher than the negative control group (P < 0.05). The cell cycle results showed that the proportion of S phase cells in the miR-27a-3p overexpression cell group was significantly lower than the negative control group (P < 0.05). Furthermore, microRNA-27a-3p knockdown validation in PLC cells showed that MTT, apoptosis and cell cycle tests results were opposite to the results of HepG2 overexpression cells, and the differences were statistically significant (P < 0.05). Conclusion: miR-27a-3p can significantly inhibit the proliferation of hepatoma cells, promote cell apoptosis, alter the cell cycle distribution, and may become a potential target in hepatocellular carcinoma therapy.
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Affiliation(s)
- Z F Yang
- Department of Cancer Center, The First Affiliated Hospital of Xinjiang Medical University, Urumqi 830011, China
| | - Y Yang
- Department of Cancer Center, The First Affiliated Hospital of Xinjiang Medical University, Urumqi 830011, China
| | - R L Zhang
- Department of Cancer Center, The First Affiliated Hospital of Xinjiang Medical University, Urumqi 830011, China
| | - C L Jia
- Department of Cancer Center, The First Affiliated Hospital of Xinjiang Medical University, Urumqi 830011, China
| | - Z P Li
- Department of Cancer Center, The First Affiliated Hospital of Xinjiang Medical University, Urumqi 830011, China
| | - W R Wang
- Department of Cancer Center, The First Affiliated Hospital of Xinjiang Medical University, Urumqi 830011, China
| | - H Zhang
- Department of Cancer Center, The First Affiliated Hospital of Xinjiang Medical University, Urumqi 830011, China
| | - S S Li
- Department of Neurosurgery, The First Affiliated Hospital of Xinjiang Medical University, Urumqi 830011, China
| | - Y X Bao
- Department of Cancer Center, The First Affiliated Hospital of Xinjiang Medical University, Urumqi 830011, China
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Yang HH, Fang H, You QJ, Han L, Yang ZF, Yu LL, Zhang Y. [Predictive study on recurrence of chronic sinusitis with nasal polyps by tissue eosinophils and sinus CT]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2019; 53:842-846. [PMID: 30453404 DOI: 10.3760/cma.j.issn.1673-0860.2018.11.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the correlation between postoperative recurrence and clinical parameters in patients with chronic rhinosinusitis with nasal polyps (CRSwNP), and to study predicitve value of total scores of eosinophils (EOS) and sinus CT for postoperative recurrence. Methods: A retrospective analysis of 264 patients with CRSwNP who were admitted to the First Affiliated Hospital of Wenzhou Medical University from June 2013 to December 2015 was performed. The patient was subjected to a visual analogue scale (VAS) score, a skin prick test, a peripheral blood cell count, a sinus CT score, and a nasal polyp EOS count. All patients underwent endoscopic surgery and were followed up for at least 2 years. The demographic characteristics of the nasal polyps recurrence group and the non-recurrence group were compared with other clinical indicators. Quantitative data were compared by t test or Mann-Whitney U test, qualitative data were compared by chi-square test, and Logistic regression analysis was used for Logistic regression analysis. The risk factors for recurrence were assessed. The best cut-off value was determined by using the receiver operating characteristic (ROC) curve. The predictive value of the parameters was determined by area under curve (AUC). The difference was statistically significant at P<0.05. Results: The recurrence rate of the study patients was 43.56% (115/264). Sex, olfactory VAS score, total sinus CT score, peripheral blood neutrophil ratio, peripheral blood EOS absolute value and proportion, and tissue EOS absolute value and proportion were associated with postoperative recurrence of nasal polyps (χ(2)=5.241, t=-3.146, t=-7.441, χ(2)=180.617, t=-5.313, χ(2)=100.067, t=-7.471, χ(2)=258.916, all P<0.05), and the tissue EOS ratio and total sinus CT scores have higher predictive value for recurrence of nasal polyps (AUC values were 0.793, 0.767, respectively, all P<0.001). With the EOS ratio of nasal polyps >0.032, the sensitivity of predicting recurrence was 83.48%, the specificity was 56.38%. With the total score of sinus CT>15, the sensitivity of predicting recurrence was 51.30% and the specificity was 87.25%. The combined sensitivity of predictive recurrence was 92.00% and the specificity was 49.20%. Conclusion: The percentage of EOS in nasal polyps and the total score of sinus CT in patients with CRSwNP have better predictive diagnostic value for recurrence of nasal polyps.
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Affiliation(s)
- H H Yang
- Department of Otorhinolaryngology Head and Neck Surgery, First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - H Fang
- Department of Otorhinolaryngology Head and Neck Surgery, First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - Q J You
- Department of Otorhinolaryngology Head and Neck Surgery, First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - L Han
- Department of Otorhinolaryngology Head and Neck Surgery, First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - Z F Yang
- Department of Otorhinolaryngology Head and Neck Surgery, First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - L L Yu
- Department of Otorhinolaryngology Head and Neck Surgery, First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - Y Zhang
- Department of Otorhinolaryngology Head and Neck Surgery, First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
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Xie BP, Qiu GH, Sun B, Yang ZF, Zhang WH, Chen JX, Jiang ZH. Synchronous sensing of three conserved sequences of Zika virus using a DNAs@MOF hybrid: experimental and molecular simulation studies. Inorg Chem Front 2019. [DOI: 10.1039/c8qi01031e] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
A metal–organic framework of Cu(ii) has been prepared and impregnated with three dye-labeled DNA sequences. The hybrid material formed is capable of synchronous detection of three conserved Zika virus RNA sequences.
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Affiliation(s)
- Bao-Ping Xie
- Guangdong Provincial Key Laboratory of New Drug Screening
- School of Pharmaceutical Sciences
- Southern Medical University
- Guangzhou 510515
- China
| | - Gui-Hua Qiu
- Guangdong Provincial Key Laboratory of New Drug Screening
- School of Pharmaceutical Sciences
- Southern Medical University
- Guangzhou 510515
- China
| | - Bin Sun
- Guangdong Provincial Key Laboratory of New Drug Screening
- School of Pharmaceutical Sciences
- Southern Medical University
- Guangzhou 510515
- China
| | - Zi-Feng Yang
- State Key Laboratory of Respiratory Diseases
- Institute of Integrated Traditional Chinese Medicine and Western Medicine
- Guangzhou Medical University
- Guangzhou
- China
| | - Wen-Hua Zhang
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
- China
| | - Jin-Xiang Chen
- Guangdong Provincial Key Laboratory of New Drug Screening
- School of Pharmaceutical Sciences
- Southern Medical University
- Guangzhou 510515
- China
| | - Zhi-Hong Jiang
- State Key Laboratory of Respiratory Diseases
- Institute of Integrated Traditional Chinese Medicine and Western Medicine
- Guangzhou Medical University
- Guangzhou
- China
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Yang ZF, Wu DQ, Wang JJ, Feng XY, Zheng JB, Hu WX, Li Y. Surgical approach for Siewert type II adenocarcinoma of the esophagogastric junction: transthoracic or transabdominal? -a single-center retrospective study. Ann Transl Med 2018; 6:450. [PMID: 30603638 DOI: 10.21037/atm.2018.10.66] [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] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Background The surgical approach (transthoracic or transabdominal) for patients with Siewert type II adenocarcinoma of the esophagogastric junction (AEG) still remains controversial. Methods Data of patients with Siewert type II AEG were collected in the Guangdong General Hospital from 2004 to 2014 and we compared their clinicopathological outcome and prognosis in regard to the transthoracic (TT) and transabdominal (TA) approach. Results A total of 158 patients with Siewert type II AEG were analyzed and our results demonstrated that their overall medium survival was 52 months. Also, their 5-year overall survival rate was 39.1%, which was comparable between the TT and TA group (35.1% vs. 43.2%, P>0.05), while more lymph nodes were dissected in TA group (23.7±0.2 vs. 18.1±0.3, P<0.05), with less postoperative complications (14.3% vs. 28.4%, P<0.05) and shorten hospital stay (12±4 vs. 15±7 d, P<0.05). Conclusions For patients with Siewert type II AEG, the TA approach is more suitable to achieve an optimal extent of lymph node dissection, reduction in the incidence of complication, shorten hospital stay, and to promote the recovery.
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Affiliation(s)
- Zi-Feng Yang
- General Surgery Department, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, China
| | - De-Qing Wu
- General Surgery Department, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, China
| | - Jun-Jiang Wang
- General Surgery Department, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, China
| | - Xing-Yu Feng
- General Surgery Department, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, China
| | - Jia-Bin Zheng
- General Surgery Department, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, China
| | - Wei-Xian Hu
- General Surgery Department, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, China
| | - Yong Li
- General Surgery Department, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, China
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Ye F, Chen XJ, Guan WD, Pan SH, Yang ZF, Chen RC. Analysis of influenza B virus lineages and the HA1 domain of its hemagglutinin gene in Guangzhou, southern China, during 2016. Virol J 2018; 15:175. [PMID: 30428893 PMCID: PMC6236879 DOI: 10.1186/s12985-018-1085-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2017] [Accepted: 10/21/2018] [Indexed: 02/05/2023] Open
Abstract
Background Few studies have analyzed influenza B virus lineages based on hemagglutinin A (HA) gene sequences in southern China. The present study analyzed the HA gene and the lineages of influenza B virus isolates from Guangzhou during 2016, and compared our results with the WHO-recommended vaccine strain. Methods Ninety patients with influenza B were recruited from the First Hospital of Guangzhou Medical University. Throat swab specimens of 72 patients had high viral loads. Among these 72 isolates, the HA1 domain of the HA gene in 43 randomly selected isolates was sequenced using reverse transcription-polymerase chain reaction (RT-PCR), and analyzed using MEGA 5.05. Results Eight of the 90 patients (8.9%) also had influenza A virus infections. Analysis of the 43 influenza B virus isolates indicated that 34 (79.1%) were from the Victoria lineage and 9 (20.9%) were from the Yamagata lineage. A comparison isolates in our Victoria lineage with the B/Brisbane/60/2008 strain indicated 12 mutation sites in the HA1 domain, 4 of which (I132V, N144D, C196S, and E198D) were in antigenic epitopes. A comparison of isolates in our Yamagata lineage with the B/Phuket/3073/2013 stain indicated 5 mutation sites in the HA1 domain, none of which was in an antigenic epitope. None of the isolates had a mutation in regions of the neuraminidase gene (NA) that are known to confer resistance to NA inhibitors. Conclusion In Guangzhou during 2016, most influenza B virus isolates were from the Victoria lineage, in contrast to the vaccine strain recommended by the WHO for this period. Electronic supplementary material The online version of this article (10.1186/s12985-018-1085-5) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Feng Ye
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease; Guangzhou Institute of Respiratory Disease, First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, 151 Yan Jiang Road, Guangzhou, Guangdong, 510120, People's Republic of China.
| | - Xiao-Juan Chen
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease; Guangzhou Institute of Respiratory Disease, First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, 151 Yan Jiang Road, Guangzhou, Guangdong, 510120, People's Republic of China
| | - Wen-da Guan
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease; Guangzhou Institute of Respiratory Disease, First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, 151 Yan Jiang Road, Guangzhou, Guangdong, 510120, People's Republic of China
| | - Si-Hua Pan
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease; Guangzhou Institute of Respiratory Disease, First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, 151 Yan Jiang Road, Guangzhou, Guangdong, 510120, People's Republic of China
| | - Zi-Feng Yang
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease; Guangzhou Institute of Respiratory Disease, First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, 151 Yan Jiang Road, Guangzhou, Guangdong, 510120, People's Republic of China
| | - Rong-Chang Chen
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease; Guangzhou Institute of Respiratory Disease, First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, 151 Yan Jiang Road, Guangzhou, Guangdong, 510120, People's Republic of China
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Hu YW, Chen R, Yang ZF, Wang H, Zhang HD, Wang R. [Protective effect and mechanism of tHBQ on acute silica dust exposure in rats]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2018; 35:721-726. [PMID: 29294540 DOI: 10.3760/cma.j.issn.1001-9391.2017.10.001] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To study the protective effects and possible mechanisms of tBHQ in rats exposed to acute silicadust. Methods: Male Wistar rats without specific pathogen SPF were randomly divided into control group、model group and intervention group, 32 rats for each group. Rats in the model group and the intervention group were treated with a single non exposed tracheal dust method to establish the rats exposed to silica model. The intervention group was intervened with 1% tBHQ solution, once a day. Each group 8 rats were sacrificed at 3,14,28,60d, respectively.The contents of IL-1,TNF-α, HYP,TGF-β in the lung tissue of rats were determined by enzyme linked immunosorbent assay(ELISA), the contents of MDA and the GSH-PX activity in lung tissue and serum of rats were determined by colorimetry. Results: Compared with the control group, the contents of IL-1 in the lung tissue of the model group and the intervention group at each time point increased with time, the contents of IL-1 of model group reached the maximum at 60d, the contents of IL-1 in intervention group reached the maximum at 28d(P<0.05), except 3 d. Compared with the control group, the contents of TGF-β and HYP in the lung tissue of the model group and the intervention group at 28 and 60 d increased with time and reached the maximum at 60d(P<0.05). Compared with the model group at each time point, the contents of IL-1, TGF-β, HYP in the intervention group were lower than those in the model group(P<0.05). Compared with the control group, the contents of MDA in lung tissue and serum of rats in model group and intervention group at different time points increased with time(P<0.05). Compared with the control group,the activity of GSH-PX in serum and lung tissue of rats in model group and intervention group decreased with time,there was no significant difference in 3d(P<0.05), compared with the control group, the activity of GSH-PX in the lung and serum tissue of in-tervenetion group was higher than model group except the 3d(P<0.05). Conclusion: The intervention of tBHQ can alleviate oxidative stress in rats exposed to silica dust to some extent, improve the antioxidant capacity of the body, and reduce the contents of IL-1, TNF-α, TGF-β,HYP in lung tissue,it has acertain impediment and inhibition effect on the inflammation and fibrosis caused by acute silica dust exposure.
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Affiliation(s)
- Y W Hu
- School of Medicine and Life Sciences, University of Jinan-Shandong Academy of Medical Sciences, Shandong Academy of Occupational Health and Occupational Medicine, Jinan 250062, China
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Wang B, Dai Z, Yang XW, Liu YP, Khan A, Yang ZF, Huang WY, Wang XH, Zhao XD, Luo XD. Novel nor-monoterpenoid indole alkaloids inhibiting glioma stem cells from fruits of Alstonia scholaris. Phytomedicine 2018; 48:170-178. [PMID: 30195875 DOI: 10.1016/j.phymed.2018.04.057] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2017] [Revised: 02/06/2018] [Accepted: 04/23/2018] [Indexed: 06/08/2023]
Abstract
BACKGROUND Glioblastoma multiforme (GBM) is a highly aggressive and frequently recurrent malignant brain tumor, and to date, the clinically effective drugs against GBM remain scarce. Natural products play an important role in drug discovery, and might be the resource of antitumor agents for GSCs. Alstonia scholaris (L.) R. Br. is rich in monoterpenoid indole alkaloids (MIAs) and used extensively for treatment of tumor in the traditional medicine system of Asia. PURPOSE To search for new MIAs with antitumor activity against glioma stem cells from clinical patients and explore their mechanism. METHODS Compounds were obtained from the fruits of A. scholaris by chromatographic separation, including silica gel, Sephadex LH-20 and recrystallization. Their structures were elucidated by the use of UV, IR, NMR and MS spectra. The antitumor activity of the compounds against the glioma stem cells (GSC-3#, GSC-12#, GSC-18#) were investigated by phenotypic screening and MTS assays. Cell proliferation assay by BrdU immunofluorescence staining, and apoptosis assay by cleaved-caspase-3 immunofluorescence staining and real-time PCR assay. The soft-agar clonal formation assay was performed to determine the antitumor efficacy of the compounds in vitro. RESULTS Two new nor-monoterpenoid indole alkaloids were isolated from the fruits of A. scholaris. They exhibited selective antitumor activity against glioma stem cells (GSC-3#, GSC-12#, GSC-18#) with IC50 values of 15-25 µg/ml. Furthermore, they inhibited GSCs proliferation, induced GSCs apoptosis by increasing the expression of TNF-α and cleavage of caspase-3, and significantly damaged colony forming capacity of GSCs. CONCLUSION New nor-monoterpenoid indole alkaloids from the fruits of A. scholaris provide new type promising molecule for the selective killing of human glioma stem cells.
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Affiliation(s)
- Bei Wang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zhi Dai
- Key Laboratory of Animal Models and Human Disease Mechanisms of Chinese Academy of Sciences/Key Laboratory of Bioactive Peptides of Yunnan Province, Kunming Institute of Zoology, Kunming 650223, Yunnan, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xiong-Wu Yang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Ya-Ping Liu
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
| | - Afsar Khan
- Department of Chemistry, COMSATS Institute of Information Technology, Abbottabad-22060, Pakistan
| | - Zi-Feng Yang
- State Key Laboratory of Respiratory Disease, Guangzhou Medical University, Guangzhou 510120, China
| | - Wan-Yi Huang
- State Key Laboratory of Respiratory Disease, Guangzhou Medical University, Guangzhou 510120, China
| | - Xin-Hua Wang
- State Key Laboratory of Respiratory Disease, Guangzhou Medical University, Guangzhou 510120, China.
| | - Xu-Dong Zhao
- Key Laboratory of Animal Models and Human Disease Mechanisms of Chinese Academy of Sciences/Key Laboratory of Bioactive Peptides of Yunnan Province, Kunming Institute of Zoology, Kunming 650223, Yunnan, China.
| | - Xiao-Dong Luo
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China; State Key Laboratory of Respiratory Disease, Guangzhou Medical University, Guangzhou 510120, China.
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Yu HF, Huang WY, Ding CF, Wei X, Zhang LC, Qin XJ, Ma HX, Yang ZF, Liu YP, Zhang RP, Wang XH, Luo XD. Cage-like monoterpenoid indole alkaloids with antimicrobial activity from Alstonia scholaris. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.06.047] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [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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30
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Chen QY, Li L, Zhang L, Mo JH, Yang ZF, Wei XL, Li YY, Xia JY, Bai XB, Xie PF. Efficacy of indoor air purification in treating Artemisia (mugwort) pollen allergic rhinitis: study protocol for a randomised controlled trial. BMC Public Health 2018; 18:841. [PMID: 29976165 PMCID: PMC6034272 DOI: 10.1186/s12889-018-5678-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2018] [Accepted: 06/06/2018] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Allergic rhinitis (AR) is a worldwide health problem. Allergen avoidance is strongly recommended for AR patients. Air purification can reduce concentrations of particles in indoor air, including those of allergens. Air purifiers have been recommended by clinicians for AR patients, but few studies have focused on the removal of airborne allergens from home environments. Such studies have been limited by a lack of blinding, small samples, or a failure to measure allergen levels, disease activity, or a combination of these factors. This study investigates the efficacy of a high-efficiency air purifier in reducing disease activity in the homes of AR patients sensitive to the allergens produced by Artemisia (mugwort) pollen. METHODS This is a randomized, double-blind, clinical controlled trial that will test active and inactive versions of an air purifier (Atmosphere®; Amway China). Sixty AR patients sensitive to the allergens produced by Artemisia pollen will be assigned randomly to two groups of equal numbers. All patients will undergo a 4-week treatment period and a 4-week observation period. Evaluation will be conducted at baseline (day 0) and on days 7, 14, 21, 28, and 56. The primary outcome measure will be the difference in visual analog scale scores from baseline. Secondary outcomes will be changes from baseline in nasal symptoms, allergy symptom scores, responses to the Rhinoconjunctivitis Quality of Life Questionnaire, Epworth Sleepiness Scale scores, and tolerability scores for the air purifier. Side effects of treatment will be recorded. DISCUSSION Reducing exposure to allergens can reduce the risk of conditions such as AR. We hypothesise that AR patients sensitive to the allergens produced by Artemisia pollen will not suffer symptoms in a pollen-free environment. AR patients can remove pollen from their homes using air purifiers, decreasing the risk of symptoms. We expect that our study results will provide reliable evidence for determining the effects of air-purification therapy. TRIAL REGISTRATION ChiCTR-INR-17012481 . (Retrospectively registered 26 August 2017).
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Affiliation(s)
- Qiao-Yan Chen
- Guangdong Provincial Hospital of Chinese Medicine, The Second Affiliated Hospital, Guangzhou University of Chinese Medicine, 111 Dade Road, Guangzhou, 510120, China
| | - Li Li
- The First Hospital of Yulin, The Second Affiliated Hospital, Yanan University, 93 Yuxi Da Dao Road, Yulin, 719000, China.
| | - Li Zhang
- The First Hospital of Yulin, The Second Affiliated Hospital, Yanan University, 93 Yuxi Da Dao Road, Yulin, 719000, China
| | - Jin-Han Mo
- Beijing Key Laboratory of Indoor Air Quality Evaluation and Control, Tsinghua University, 30 Shuangqing Road, Beijing, 100084, China
| | - Zi-Feng Yang
- State Key Laboratory of Respiratory Diseases, Guangzhou Institute of Respiratory Disease, National Clinical Centre of Respiratory Disease, The First Affiliated Hospital, Guangzhou Medical University, 151 Yanjiang Xi Road, Guangzhou, 510120, China.
| | - Xiao-Lin Wei
- University of Toronto, 27 King's College Circle, Toronto, Ontario, M5S 1A1, Canada
| | - Yun-Ying Li
- Guangdong Provincial Hospital of Chinese Medicine, The Second Affiliated Hospital, Guangzhou University of Chinese Medicine, 111 Dade Road, Guangzhou, 510120, China
| | - Ji-Yan Xia
- Guangdong Provincial Hospital of Chinese Medicine, The Second Affiliated Hospital, Guangzhou University of Chinese Medicine, 111 Dade Road, Guangzhou, 510120, China
| | - Xiao-Bing Bai
- The First Hospital of Yulin, The Second Affiliated Hospital, Yanan University, 93 Yuxi Da Dao Road, Yulin, 719000, China
| | - Pei-Fang Xie
- State Key Laboratory of Respiratory Diseases, Guangzhou Institute of Respiratory Disease, National Clinical Centre of Respiratory Disease, The First Affiliated Hospital, Guangzhou Medical University, 151 Yanjiang Xi Road, Guangzhou, 510120, China
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31
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Zhao YL, Yang ZF, Shang JH, Huang WY, Wang B, Wei X, Khan A, Yuan ZW, Liu YP, Wang YF, Wang XH, Luo XD. Effects of indole alkaloids from leaf of Alstonia scholaris on post-infectious cough in mice. J Ethnopharmacol 2018; 218:69-75. [PMID: 29496577 PMCID: PMC7126965 DOI: 10.1016/j.jep.2018.02.040] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2017] [Revised: 02/25/2018] [Accepted: 02/25/2018] [Indexed: 05/15/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Leaf of Alstonia scholaris (L.) R. Br. (Apocynaceae), a wide used ethic-medicine in many Asia and Africa counties, has also been recorded as the common traditional Chinese medicine for treatment of illnesses in respiratory system by Dai people. AIM OF THE STUDY To provide experimental data of clinical adaption of total indole alkaloids (TA) from leaf of A. scholaris for treating post-infectious cough in phase II clinical trial. MATERIALS AND METHODS To model post-infectious cough, all animals except control group were instilled intra-tracheal with lipopolysaccharide (LPS) (80 μg/50 µL/mouse), followed by subsequent exposure to cigarette smoke (CS) for 30 min per day for a total of 30 days. Mice were orally given TA at dose of 10, 25, 50 mg/kg, and four main alkaloids (Sch: scholaricine, Epi: 19-epischolaricine, Val: vallesamine, Pic: picrinine) once daily. Cellular infiltration was assessed in the broncho-alveolar lavage fluid (BALF). Expression of interleukin-6 (IL-6) and C-reactive protein (CRP) in the serum was determined, the superoxide dismutase (SOD) activity as well as malondialdehyde (MDA) content in the serum and homogenate were examined. Finally, histopathological examination in the lungs was assessed by H. E. staining. RESULTS After administration of TA and four major alkaloids respectively, the symptoms of cough in mice were obviously attenuated. Total white blood cells (WBC) and neutrophils (NEU) amounts in BALF were reduced obviously and the pathological damage of lung was also attenuated. There was also significant reduction in IL-6, CRP, MDA and a marked improvement in SOD. CONCLUSIONS The efficacy of indole alkaloids against post-infectious cough (PIC) was shown in the down-regulation of inflammatory cells, cytokines, and the balance of antioxidants. What's more, the pharmacological effects of TA were better than single indole alkaloid, which might be related to the synergic effect of four major alkaloids.
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Affiliation(s)
- Yun-Li Zhao
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
| | - Zi-Feng Yang
- Guangzhou Medical University, Guangzhou 511436, China
| | - Jian-Hua Shang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
| | - Wan-Yi Huang
- Guangzhou Medical University, Guangzhou 511436, China
| | - Bei Wang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
| | - Xin Wei
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
| | - Afsar Khan
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China; Department of Chemistry, COMSATS Institute of Information Technology, Abbottabad 22060, Pakistan
| | - Zhi-Wei Yuan
- Second Hospital Affiliated to Kunming Medical University, Kunming 650101, Yunnan Province, China
| | - Ya-Ping Liu
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
| | - Yi-Fen Wang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
| | - Xin-Hua Wang
- Guangzhou Medical University, Guangzhou 511436, China.
| | - Xiao-Dong Luo
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China; Guangzhou Medical University, Guangzhou 511436, China.
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32
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Wei X, Yang J, Ma HX, Ding CF, Yu HF, Zhao YL, Liu YP, Khan A, Wang YF, Yang ZF, Huang WY, Wang XH, Luo XD. Antimicrobial indole alkaloids with adductive C9 aromatic unit from Gelsemium elegans. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.04.041] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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33
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Wei X, Dai Z, Yang J, Khan A, Yu HF, Zhao YL, Wang YF, Liu YP, Yang ZF, Huang WY, Wang XH, Zhao XD, Luo XD. Unprecedented sugar bridged bisindoles selective inhibiting glioma stem cells. Bioorg Med Chem 2018; 26:1776-1783. [DOI: 10.1016/j.bmc.2018.02.024] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2018] [Revised: 02/06/2018] [Accepted: 02/15/2018] [Indexed: 11/16/2022]
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34
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Ding CF, Ma HX, Yang J, Qin XJ, Njateng GSS, Yu HF, Wei X, Liu YP, Huang WY, Yang ZF, Wang XH, Luo XD. Antibacterial Indole Alkaloids with Complex Heterocycles from Voacanga africana. Org Lett 2018; 20:2702-2706. [PMID: 29676579 DOI: 10.1021/acs.orglett.8b00913] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Voacafricines A and B, two unique monoterpenoid indole alkaloids each bearing five fused heterocycles, were obtained from the fruits of Voacanga africana. Their structures were elucidated by extensive spectroscopic methods and computational studies. A plausible biogenetic pathway was proposed from a common precursor, 19- epi-voacristine. Both compounds exhibited potent activity against Staphylococcus aureus and Salmonella typhi, and their activities were superior to those of the well-known antibacterial drugs berberine and fibrauretine.
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Affiliation(s)
- Cai-Feng Ding
- State Key Laboratory of Phytochemistry and Plant Resources in West China , Kunming Institute of Botany, Chinese Academy of Sciences , Kunming 650201 , People's Republic of China.,Graduate University of the Chinese Academy of Sciences , Beijing 100049 , People's Republic of China
| | - Hong-Xia Ma
- State Key Laboratory of Respiratory Disease , Guangzhou Medical University , Guangzhou 510120 , People's Republic of China
| | - Jing Yang
- State Key Laboratory of Phytochemistry and Plant Resources in West China , Kunming Institute of Botany, Chinese Academy of Sciences , Kunming 650201 , People's Republic of China
| | - Xu-Jie Qin
- State Key Laboratory of Phytochemistry and Plant Resources in West China , Kunming Institute of Botany, Chinese Academy of Sciences , Kunming 650201 , People's Republic of China
| | - Guy S S Njateng
- Department of Biochemistry, Faculty of Science , University of Dschang , P.O. Box 67, Dschang , Cameroon
| | - Hao-Fei Yu
- State Key Laboratory of Phytochemistry and Plant Resources in West China , Kunming Institute of Botany, Chinese Academy of Sciences , Kunming 650201 , People's Republic of China.,Graduate University of the Chinese Academy of Sciences , Beijing 100049 , People's Republic of China
| | - Xin Wei
- State Key Laboratory of Phytochemistry and Plant Resources in West China , Kunming Institute of Botany, Chinese Academy of Sciences , Kunming 650201 , People's Republic of China.,Graduate University of the Chinese Academy of Sciences , Beijing 100049 , People's Republic of China
| | - Ya-Ping Liu
- State Key Laboratory of Phytochemistry and Plant Resources in West China , Kunming Institute of Botany, Chinese Academy of Sciences , Kunming 650201 , People's Republic of China
| | - Wan-Yi Huang
- State Key Laboratory of Respiratory Disease , Guangzhou Medical University , Guangzhou 510120 , People's Republic of China
| | - Zi-Feng Yang
- State Key Laboratory of Respiratory Disease , Guangzhou Medical University , Guangzhou 510120 , People's Republic of China
| | - Xin-Hua Wang
- State Key Laboratory of Respiratory Disease , Guangzhou Medical University , Guangzhou 510120 , People's Republic of China
| | - Xiao-Dong Luo
- State Key Laboratory of Phytochemistry and Plant Resources in West China , Kunming Institute of Botany, Chinese Academy of Sciences , Kunming 650201 , People's Republic of China.,State Key Laboratory of Respiratory Disease , Guangzhou Medical University , Guangzhou 510120 , People's Republic of China
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35
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Wang B, Yang ZF, Zhao YL, Liu YP, Deng J, Huang WY, Li XN, Wang XH, Luo XD. Anti-Inflammatory Isoquinoline with Bis-seco-aporphine Skeleton from Dactylicapnos scandens. Org Lett 2018; 20:1647-1650. [PMID: 29508621 DOI: 10.1021/acs.orglett.8b00400] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Bei Wang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, People’s Republic of China
- University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
| | - Zi-Feng Yang
- Guangzhou Medical University, Guangzhou 511436, People’s Republic of China
| | - Yun-Li Zhao
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, People’s Republic of China
| | - Ya-Ping Liu
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, People’s Republic of China
| | - Jun Deng
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, People’s Republic of China
| | - Wan-Yi Huang
- Guangzhou Medical University, Guangzhou 511436, People’s Republic of China
| | - Xiao-Nian Li
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, People’s Republic of China
| | - Xin-Hua Wang
- Guangzhou Medical University, Guangzhou 511436, People’s Republic of China
| | - Xiao-Dong Luo
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, People’s Republic of China
- Guangzhou Medical University, Guangzhou 511436, People’s Republic of China
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36
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Bing-Yuan, Zhang YH, Leung NH, Cowling BJ, Yang ZF. Role of viral bioaerosols in nosocomial infections and measures for prevention and control. J Aerosol Sci 2018; 117:200-211. [PMID: 32226118 PMCID: PMC7094610 DOI: 10.1016/j.jaerosci.2017.11.011] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2017] [Revised: 11/21/2017] [Accepted: 11/23/2017] [Indexed: 09/21/2023]
Abstract
The presence of patients with diverse pathologies in hospitals results in an environment that can be rich in various microorganisms including respiratory and enteric viruses, leading to outbreaks in hospitals or spillover infections to the community. All hospital patients are at risk of nosocomial viral infections, but vulnerable groups such as older adults, children and immuno-compromised/-suppressed patients are at particular risk of severe outcomes including prolonged hospitalization or death. These pathogens could transmit through direct or indirect physical contact, droplets or aerosols, with increasing evidence suggesting the importance of aerosol transmission in nosocomial infections of respiratory and enteric viruses. Factors affecting the propensity to transmit and the severity of disease transmitted via the aerosol route include the biological characteristics affecting infectivity of the viruses and susceptibility of the host, the physical properties of aerosol particles, and the environmental stresses that alter these properties such as temperature and humidity. Non-specific systematic and individual-based interventions designed to mitigate the aerosol route are available although empirical evidence of their effectiveness in controlling transmission of respiratory and enteric viruses in healthcare settings are sparse. The relative importance of aerosol transmission in healthcare setting is still an on-going debate, with particular challenge being the recovery of infectious viral bioaerosols from real-life settings and the difficulty in delineating transmission events that may also be a result of other modes of transmission. For the prevention and control of nosocomial infections via the aerosol route, more research is needed on identifying settings, medical procedures or equipment that may be associated with an increased risk of aerosol transmission, including defining which procedures are aerosol-generating; and on the effectiveness of systematic interventions on aerosol transmission of respiratory and enteric viruses in healthcare settings.
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Affiliation(s)
- Bing-Yuan
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, First Affiliated Hospital of Guangzhou Medical University, No. 151, Yanjiangxi Road, Yuexiu District, Guangzhou, Guangdong 510120, China
- Department of Respiration, First People's Hospital of Yunnan Province, 157, Jinbi Road, Kunming, Yunnan 650032, China
| | - Yun-Hui Zhang
- Department of Respiration, First People's Hospital of Yunnan Province, 157, Jinbi Road, Kunming, Yunnan 650032, China
| | - Nancy H.L. Leung
- WHO Collaborating Centre for Infectious Disease Epidemiology and Control, School of Public Health, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Patrick Manson Building (North Wing), 7 Sassoon Road, Pokfulam, Hong Kong SAR, China
| | - Benjamin J. Cowling
- WHO Collaborating Centre for Infectious Disease Epidemiology and Control, School of Public Health, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Patrick Manson Building (North Wing), 7 Sassoon Road, Pokfulam, Hong Kong SAR, China
| | - Zi-Feng Yang
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, First Affiliated Hospital of Guangzhou Medical University, No. 151, Yanjiangxi Road, Yuexiu District, Guangzhou, Guangdong 510120, China
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Yang ZF, Wu DQ, Wang JJ, Lv ZJ, Li Y. Short- and long-term outcomes following laparoscopic vs open surgery for pathological T4 colorectal cancer: 10 years of experience in a single center. World J Gastroenterol 2018; 24:76-86. [PMID: 29358884 PMCID: PMC5757128 DOI: 10.3748/wjg.v24.i1.76] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/26/2017] [Revised: 11/17/2017] [Accepted: 11/21/2017] [Indexed: 02/06/2023] Open
Abstract
AIM To evaluate the short-term and long-term outcomes following laparoscopic vs open surgery for pathological T4 (pT4) colorectal cancer.
METHODS We retrospectively analyzed the short- and long-term outcomes of proven pT4 colorectal cancer patients who underwent complete resection by laparoscopic or open surgery from 2006 to 2015 at Guangdong General Hospital.
RESULTS A total of 211 pT4 colorectal cancer patients were included in this analysis, including 101 cases in the laparoscopy (LAP) group and 110 cases in the open surgery (OPEN) group [including 15 (12.9%) cases of conversion to open surgery]. Clinical information (age, gender, body mass index, comorbidities, American Society of Anesthesiologists score, etc.) did not differ between the two groups. In terms of blood loss, postoperative complications and rate of recovery, the LAP group performed significantly more favorably (P < 0.05). With regard to pT4a/b and combined organ resection, there were significantly more cases in the OPEN group (P < 0.05). The 3- and 5-year overall survival rates were 74.9% and 60.5%, respectively, for the LAP group and 62.4% and 46.5%, respectively, for the OPEN group (P = 0.060). The 3- and 5-year disease-free survival rates were 68.0% and 57.3%, respectively, for the LAP group and 55.8% and 39.8%, respectively, for the OPEN group (P = 0.053). Multivariate analysis showed that IIIB/IIIC stage, lymph node status, and CA19-9 were significant predictors of overall survival. PT4a/b, IIIC stage, histological subtypes, CA19-9, and adjuvant chemotherapy were independent factors affecting disease-free survival.
CONCLUSION Laparoscopy is safely used in the treatment of pT4 colorectal cancer while offering advantages of minimal invasiveness and faster recovery. Laparoscopy is able to achieve good oncologic outcomes similar to those of open surgery. We recommend that laparoscopy be carried out in experienced centers. It is still required to screen the appropriate cases for laparoscopic surgery, optimize the preoperative diagnosis process, and reduce the conversion rate. Multi-center, prospective, and large-sample studies are required to assess these issues.
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Affiliation(s)
- Zi-Feng Yang
- Department of General Surgery, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, Guangdong Province, China
| | - De-Qing Wu
- Department of General Surgery, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, Guangdong Province, China
| | - Jun-Jiang Wang
- Department of General Surgery, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, Guangdong Province, China
| | - Ze-Jian Lv
- Department of General Surgery, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, Guangdong Province, China
| | - Yong Li
- Department of General Surgery, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, Guangdong Province, China
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38
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Hui KPY, Chan LLY, Kuok DIT, Mok CKP, Yang ZF, Li RF, Luk GSM, Lee EF, Lai JCC, Yen HL, Zhu H, Guan Y, Nicholls JM, Peiris JSM, Chan MCW. Tropism and innate host responses of influenza A/H5N6 virus: an analysis of ex vivo and in vitro cultures of the human respiratory tract. Eur Respir J 2017; 49:49/3/1601710. [PMID: 28275173 DOI: 10.1183/13993003.01710-2016] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2016] [Accepted: 12/05/2016] [Indexed: 12/28/2022]
Abstract
Since their first isolation in 2013, influenza A/H5N6 viruses have spread amongst poultry across multiple provinces in China and to Laos, Vietnam and Myanmar. So far, there have been 14 human H5N6 infections with 10 fatalities.We investigated the tropism, replication competence and cytokine induction of one human and two avian H5N6 isolates in ex vivo and in vitro cultures derived from the human respiratory tract. Virus tropism and replication were studied in ex vivo cultures of human nasopharynx, bronchus and lung. Induction of cytokines and chemokines was measured in vitro in virus-infected primary human alveolar epithelial cells.Human H5N6 virus replicated more efficiently than highly pathogenic avian influenza (HPAI) H5N1 virus and as efficiently as H1N1pdm in ex vivo human bronchus and lung and was also able to replicate in ex vivo cultures of human nasopharynx. Avian H5N6 viruses replicated less efficiently than H1N1pdm in human bronchial tissues and to similar titres as HPAI H5N1 in the lung. While the human H5N6 virus had affinity for avian-like receptors, the two avian isolates had binding affinity for both avian- and human-like receptors. All three H5N6 viruses were less potent inducers of pro-inflammatory cytokines compared with H5N1 virus.Human H5N6 virus appears better adapted to infect the human airways than H5N1 virus and may pose a significant public health threat.
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Affiliation(s)
- Kenrie P Y Hui
- School of Public Health, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China.,These authors contributed equally to the study
| | - Louisa L Y Chan
- School of Public Health, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China.,These authors contributed equally to the study
| | - Denise I T Kuok
- School of Public Health, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China
| | - Chris K P Mok
- School of Public Health, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China.,The HKU-Pasteur Research Pole, School of Public Health, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China
| | - Zi-Feng Yang
- State Key Laboratory of Respiratory Disease, First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Run-Feng Li
- State Key Laboratory of Respiratory Disease, First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Geraldine S M Luk
- Agriculture, Fisheries and Conservation Department, The Government of Hong Kong SAR, Hong Kong SAR, China
| | - Elaine F Lee
- Agriculture, Fisheries and Conservation Department, The Government of Hong Kong SAR, Hong Kong SAR, China
| | - Jimmy C C Lai
- School of Public Health, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China.,The HKU-Pasteur Research Pole, School of Public Health, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China
| | - Hui-Ling Yen
- School of Public Health, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China
| | - Huachen Zhu
- School of Public Health, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China
| | - Yi Guan
- School of Public Health, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China
| | - John M Nicholls
- Department of Pathology, Queen Mary Hospital, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China
| | - J S Malik Peiris
- School of Public Health, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China
| | - Michael C W Chan
- School of Public Health, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China
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Wang Y, Zhou B, Lu J, Chen Q, Ti H, Huang W, Li J, Yang Z, Jiang Z, Wang X. Inhibition of influenza virus via a sesquiterpene fraction isolated from Laggera pterodonta by targeting the NF-κB and p38 pathways. Altern Ther Health Med 2017; 17:25. [PMID: 28061784 PMCID: PMC5217203 DOI: 10.1186/s12906-016-1528-8] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2016] [Accepted: 12/08/2016] [Indexed: 11/14/2022]
Abstract
Background Influenza virus poses serious threats to human health, especially human infection with avian influenza virus. Laggera pterodonta (DC.) Benth is a medicinal plant that is widely used in Traditional Chinese Medicine, especially in Yunnan province, and has been used to treat influenza, pharyngolaryngitis, and bronchitis. However, the compound(s) responsible for the activity and their mechanisms of action against the influenza virus remain to be elucidated. Methods L. pterodonta extract was fractionated, and the active fraction was identified as Fraction 14 (Fr 14). Fr 14 was further analysed and characterized by ultra-high-performance liquid chromatography hyphenated with quadrupole-time of flight mass spectrometry (UHPLC/Q-TOF-MS). The inhibitory effect against influenza virus was evaluated using a cytotoxicity assay. Then, cytokines and chemokines were detected by qRT-PCR and a bio-plex assay. Signalling pathways that inhibited the influenza virus were identified using a western blotting assay. Results The active fr 14 showed a wide spectrum of anti-influenza virus activity. The pharmacological mechanisms showed that Fr 14 acts on the early stage of virus replication (0–6 h). It inhibited the p38/MAPK pathway and then inhibited the NF-κB pathway and COX-2. Fr 14 also prevented the increased expression of cytokines and chemokines. Conclusion This study demonstrated the preliminary mechanisms of fr 14 against the influenza virus. Fr 14 possessed antiviral and anti-inflammatory effects. L. pterodonta can be used to develop innovative antiviral drugs, and further studies will be performed to illustrate the detailed mechanisms.
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Lü YH, Ma KJ, Li ZH, Gu J, Bao JY, Yang ZF, Gao J, Zeng Y, Tao L, Chen L. [Correlation between RNA Expression Level and Early PMI in Human Brain Tissue]. Fa Yi Xue Za Zhi 2016; 32:245-249. [PMID: 29188663 DOI: 10.3969/j.issn.1004-5619.2016.04.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 03/28/2016] [Indexed: 11/18/2022]
Abstract
OBJECTIVES To explore the correlation between the expression levels of several RNA markers in human brain tissue and early postmortem interval (PMI). METHODS Twelve individuals with known PMI (range from 4.3 to 22.5 h) were selected and total RNA was extracted from brain tissue. Eight commonly used RNA markers were chosen including β-actin, GAPDH, RPS29, 18S rRNA, 5S rRNA, U6 snRNA, miRNA-9 and miRNA-125b, and the expression levels were detected in brain tissue by real-time fluorescent quantitative PCR. The internal reference markers with stable expression in early PMI were screened using geNorm software and the relationship between its expression level and some relevant factors such as age, gender and cause of death were analyzed. RNA markers normalized by internal reference were inserted into the mathematic model established by previous research for PMI estimation using R software. Model quality was judged by the error rate calculated with estimated PMI. RESULTS 5S rRNA, miRNA-9 and miRNA-125b showed quite stable expression and their expression levels had no relation with age, gender and cause of death. The error rate of estimated PMI using β-actin was 24.6%, while GAPDH was 41.0%. CONCLUSIONS 5S rRNA, miRNA-9 and miRNA-125b are suitable as internal reference markers of human brain tissue owing to their stable expression in early PMI. The expression level of β-actin correlates well with PMI, which can be used as an additional index for early PMI estimation.
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Affiliation(s)
- Y H Lü
- Shanghai University of Medicine & Health Science, Shanghai 201318, China
| | - K J Ma
- Shanghai Key Laboratory of Crime Scene Evidence, Key Laboratory of Forensic Evidence and Science Technology, Ministry of Public Security, Institute of Forensic Science, Shanghai Public Security Bureau, Shanghai 200083, China
| | - Z H Li
- Shanghai University of Medicine & Health Science, Shanghai 201318, China
| | - J Gu
- Shanghai University of Medicine & Health Science, Shanghai 201318, China
| | - J Y Bao
- Shanghai University of Medicine & Health Science, Shanghai 201318, China
| | - Z F Yang
- Shanghai University of Medicine & Health Science, Shanghai 201318, China
| | - J Gao
- Shanghai University of Medicine & Health Science, Shanghai 201318, China
| | - Y Zeng
- Department of Forensic Medicine, School of Basic Medical Science, Fudan University, Shanghai 200032, China
| | - L Tao
- Department of Forensic Medicine, School of Basic Medical Science, Fudan University, Shanghai 200032, China
| | - L Chen
- Department of Forensic Medicine, School of Basic Medical Science, Fudan University, Shanghai 200032, China
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Chen ZJ, Wang L, Fang YS, Zhang AX, Yang ZF, Yuan ZY, Ning W. [Effect of radiation dose and dose rate on pulmonary fibrosis in mice]. Zhonghua Jie He He Hu Xi Za Zhi 2016; 39:117-21. [PMID: 26879616 DOI: 10.3760/cma.j.issn.1001-0939.2016.02.010] [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 To study the effect of radiation dose and dose rate on radiation-induced pulmonary fibrosis in mice. METHODS Twenty-four C57BL/6 mice were randomly divided into a control group (n=6) and an irradiation group(n=18). The irradiation group was further assigned to 3 subgroups according to the whole lung radiation with 15 Gy at 400 cGy/min, 20 Gy at 400 cGy/min and 20 Gy at 100 cGy/min, while the control group received sham-irradiation. All mice were scanned with computed tomograph (CT) 20 weeks post-irradiation, and then they were sacrificed and lung tissues were collected. H&E staining, sirius red staining, lung fibrosis scored and hydroxyproline content analysis were used to assess lung fibrosis and collagen deposition. Real time PCR was used to measure the mRNA expression of type Ⅰ collagen. Immunohistochemical staining was used to detect the activatin and distribution of a-SMA(+) -myofibroblasts. RESULTS Compared to the control group, mice from irradiation groups exhibited significant pulmonary consolidation and collagen deposition.At the same dose rate, the higher irradiated dose used, the more severe pulmonary fibrosis was.On the other hand, with the same dose, the dose rate had less effect on pulmonary fibrosis. CONCLUSION The effect of radiation dose on the degree of pulmonary fibrosis in mice is more than effect of the dose rate.
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Affiliation(s)
- Z J Chen
- Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer
| | - L Wang
- Key Laboratory of Cancer Prevention and Therapy, Tianjin 300060, College of Life Sciences, Nankai University, Tianjin 300071, China
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Lin L, Yang ZF, Zhan YQ, Luo W, Liu BJ, Pan JY, Yi F, Chen RC, Lai KF. The duration of cough in patients with H1N1 influenza. Clin Respir J 2015; 11:733-738. [PMID: 26519198 PMCID: PMC7162306 DOI: 10.1111/crj.12409] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/15/2015] [Revised: 10/02/2015] [Accepted: 10/17/2015] [Indexed: 01/25/2023]
Abstract
BACKGROUND Cough is one of common symptoms of influenza, the cough duration and prevalence of postinfectious cough (PIC) after viral upper respiratory tract infection has not been well described. OBJECTIVES We aim to investigate the duration of cough and prevalence of PIC and its relation with acute symptoms, airway inflammation and cough sensitivity in patients with H1N1 influenza. METHODS Patients with acute symptoms of H1N1 influenza were enrolled and followed up until cough relived. Spirometry, induced sputum test, capsaicin challenge test were conducted in patients with PIC. Cough sensitivity was presented as logarithm of provocative concentration inducing five or more coughs (logC5). RESULTS A total of 141 cases with H1N1 influenza were enrolled. In patients with H1N1 influenza, 97.2% of them complained cough. The duration of cough was as following: <1 week (73.0%); 1-2 weeks (7.8%); 2-3 weeks (7.8%); ≥3 weeks (8.5%). Twelve (8.5%) patients had cough lasting more than 3 weeks (PIC), 4 (2.8%) patients developed chronic cough (>8 weeks). Acute symptoms, spirometry, bronchial responsiveness and sputum differential cell count were similar between patients with PIC and those without PIC, however, there was a higher prevalence of previous PIC (58.3% vs 14.7%, P < 0.05) and elevated cough sensitivity (lgC5: 1.18 ± 0.58 vs 2.73 ± 0.33, P < 0.01) in patients with PIC as compared with the patients without PIC. CONCLUSIONS Acute cough is common in patients with H1N1 PIC, only a few of patients develop chronic cough. Acute symptoms cannot predict PIC which is related with previous PIC and increased cough sensitivity.
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Affiliation(s)
- Ling Lin
- State Key Laboratory of Respiratory Diseases, Guangzhou Institute of Respiratory Diseases, National Clinical Research Center for Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China.,Pulmonary Department, The Second People's Hospital of Wuhu, Anhui, China
| | - Zi-Feng Yang
- State Key Laboratory of Respiratory Diseases, Guangzhou Institute of Respiratory Diseases, National Clinical Research Center for Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Yang-Qing Zhan
- State Key Laboratory of Respiratory Diseases, Guangzhou Institute of Respiratory Diseases, National Clinical Research Center for Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Wei Luo
- State Key Laboratory of Respiratory Diseases, Guangzhou Institute of Respiratory Diseases, National Clinical Research Center for Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Bao-Juan Liu
- State Key Laboratory of Respiratory Diseases, Guangzhou Institute of Respiratory Diseases, National Clinical Research Center for Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Jia-Yu Pan
- State Key Laboratory of Respiratory Diseases, Guangzhou Institute of Respiratory Diseases, National Clinical Research Center for Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Fang Yi
- State Key Laboratory of Respiratory Diseases, Guangzhou Institute of Respiratory Diseases, National Clinical Research Center for Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Ru-Chong Chen
- State Key Laboratory of Respiratory Diseases, Guangzhou Institute of Respiratory Diseases, National Clinical Research Center for Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Ke-Fang Lai
- State Key Laboratory of Respiratory Diseases, Guangzhou Institute of Respiratory Diseases, National Clinical Research Center for Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
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Affiliation(s)
- Zi-Feng Yang
- State Key Laboratory of Respiratory Disease, Guangzhou, China
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Wang JR, Guan WD, Yau LF, Gao WN, Zhan YQ, Liu L, Yang ZF, Jiang ZH. Glycomic signatures on serum IgGs for prediction of postvaccination response. Sci Rep 2015; 5:7648. [PMID: 25612906 PMCID: PMC4303884 DOI: 10.1038/srep07648] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2014] [Accepted: 11/20/2014] [Indexed: 12/17/2022] Open
Abstract
Millions of individuals are vaccinated worldwide each year to stimulate their adaptive immune systems to produce protective antibodies and T-cell response against pathogens. Since glycosylation of the Fc region of immunoglobulin G (IgG) can be influenced by the host's immune status, it was inferred that glycosylation profile of IgG might be altered as a result of the immune response. Therefore, subclass-specific glycosylation profiles of serum IgGs from 26 healthy adults before and after vaccination with a trivalent subunit influenza virus vaccine were comprehensively analyzed to explore glycomic signatures for vaccination. The results showed that no significant changes in the glycosylation of total IgGs took place before and after vaccination, but distinct glycosylation profiles in responders (fourfold or more increase of HI titer after vaccination) and nonresponders (less than fourfold increase of HI titer) were observed. This difference between the responders and nonresponders occurred even in the resting state. On the basis of variable importance parameters, glycosylation markers that distinguish responders from nonresponders were identified. These markers can be used as molecular signatures to predict antibody titers after vaccination. This is the first study of serum IgG glycosylation profiles in healthy adults receiving a trivalent inactivated influenza vaccine.
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Affiliation(s)
- Jing-Rong Wang
- State Key Laboratory of Quality Research in Chinese Medicine, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Macau, China
| | - Wen-Da Guan
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Lee-Fong Yau
- State Key Laboratory of Quality Research in Chinese Medicine, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Macau, China
| | - Wei-Na Gao
- State Key Laboratory of Quality Research in Chinese Medicine, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Macau, China
| | - Yang-Qing Zhan
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Liang Liu
- State Key Laboratory of Quality Research in Chinese Medicine, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Macau, China
| | - Zi-Feng Yang
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Zhi-Hong Jiang
- 1] State Key Laboratory of Quality Research in Chinese Medicine, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Macau, China [2] State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
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Yang ZF, He JF, Li XB, Guan WD, Ke CW, Wu SG, Pan SH, Li RF, Kang M, Wu J, Lin JY, Ding GY, Huang JC, Pan WQ, Zhou R, Lin YP, Chen RC, Li YM, Chen L, Xiao WL, Zhang YH, Zhong NS. Epidemiological and viral genome characteristics of the first human H7N9 influenza infection in Guangdong Province, China. J Thorac Dis 2015; 6:1785-93. [PMID: 25589974 DOI: 10.3978/j.issn.2072-1439.2014.12.09] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2014] [Accepted: 12/05/2014] [Indexed: 11/14/2022]
Abstract
BACKGROUND The first H7N9 human case in south of China was confirmed in Guangdong Province on August 2013, outside of the typical influenza season. For investigating the H7N9 virus source and transmission in the local community, we analyze the epidemiology and genome features of the virus isolated from the first human infection detected in Guangdong Province. METHODS The data including medical records, exposure history and time line of events for the H7N9 patient and close contacts was collected. Variation and genetic signatures of H7N9 virus in Guangdong was analyzed using ClustalW algorithm and comparison with mutations associated with changes in biological characteristics of the virus. RESULTS The female patient had a history of poultry exposure, and she was transferred from a local primary hospital to an intensive care unit (ICU) upon deterioration. No additional cases were reported. Similar to previous infections with avian influenza A (H7N9) virus, the patient presented with both upper and lower respiratory tract symptoms. Respiratory failure progressed quickly, and the patient recovered 4 weeks after the onset of symptoms. Genome analysis of the virus indicated that the predicted antigen city and internal genes of the virus are similar to previously reported H7N9 viruses. The isolated virus is susceptible to neuraminidase (NA) inhibitors but resistant to adamantine. Although this virus contains some unique mutations that were only detected in avian or environment-origin avian influenza A (H7N9) viruses, it is still quite similar to other human H7N9 isolates. CONCLUSIONS The epidemiological features and genome of the first H7N9 virus in Guangdong Province are similar to other human H7N9 infections. This virus may have existed in the environment and live poultry locally; therefore, it is important to be alert of the risk of H7N9 re-emergence in China, including emergence outside the typical influenza season.
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Affiliation(s)
- Zi-Feng Yang
- 1 State Key Laboratory of Respiratory Disease (Guangzhou Medical University), 2 National Clinical Research Center for Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China ; 3 Guangdong Center for Disease Control and Prevention, Guangzhou 511430, China ; 4 Health quarantine (BSL-3) Lab, Guangdong Inspection and Quarantine Technology Center, Guangzhou 510623, China ; 5 Clinical Laboratory, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China ; 6 Huizhou Center for Disease Control and Prevention, Huizhou 516001, China
| | - Jian-Feng He
- 1 State Key Laboratory of Respiratory Disease (Guangzhou Medical University), 2 National Clinical Research Center for Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China ; 3 Guangdong Center for Disease Control and Prevention, Guangzhou 511430, China ; 4 Health quarantine (BSL-3) Lab, Guangdong Inspection and Quarantine Technology Center, Guangzhou 510623, China ; 5 Clinical Laboratory, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China ; 6 Huizhou Center for Disease Control and Prevention, Huizhou 516001, China
| | - Xiao-Bo Li
- 1 State Key Laboratory of Respiratory Disease (Guangzhou Medical University), 2 National Clinical Research Center for Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China ; 3 Guangdong Center for Disease Control and Prevention, Guangzhou 511430, China ; 4 Health quarantine (BSL-3) Lab, Guangdong Inspection and Quarantine Technology Center, Guangzhou 510623, China ; 5 Clinical Laboratory, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China ; 6 Huizhou Center for Disease Control and Prevention, Huizhou 516001, China
| | - Wen-Da Guan
- 1 State Key Laboratory of Respiratory Disease (Guangzhou Medical University), 2 National Clinical Research Center for Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China ; 3 Guangdong Center for Disease Control and Prevention, Guangzhou 511430, China ; 4 Health quarantine (BSL-3) Lab, Guangdong Inspection and Quarantine Technology Center, Guangzhou 510623, China ; 5 Clinical Laboratory, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China ; 6 Huizhou Center for Disease Control and Prevention, Huizhou 516001, China
| | - Chang-Wen Ke
- 1 State Key Laboratory of Respiratory Disease (Guangzhou Medical University), 2 National Clinical Research Center for Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China ; 3 Guangdong Center for Disease Control and Prevention, Guangzhou 511430, China ; 4 Health quarantine (BSL-3) Lab, Guangdong Inspection and Quarantine Technology Center, Guangzhou 510623, China ; 5 Clinical Laboratory, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China ; 6 Huizhou Center for Disease Control and Prevention, Huizhou 516001, China
| | - Shi-Guan Wu
- 1 State Key Laboratory of Respiratory Disease (Guangzhou Medical University), 2 National Clinical Research Center for Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China ; 3 Guangdong Center for Disease Control and Prevention, Guangzhou 511430, China ; 4 Health quarantine (BSL-3) Lab, Guangdong Inspection and Quarantine Technology Center, Guangzhou 510623, China ; 5 Clinical Laboratory, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China ; 6 Huizhou Center for Disease Control and Prevention, Huizhou 516001, China
| | - Si-Hua Pan
- 1 State Key Laboratory of Respiratory Disease (Guangzhou Medical University), 2 National Clinical Research Center for Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China ; 3 Guangdong Center for Disease Control and Prevention, Guangzhou 511430, China ; 4 Health quarantine (BSL-3) Lab, Guangdong Inspection and Quarantine Technology Center, Guangzhou 510623, China ; 5 Clinical Laboratory, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China ; 6 Huizhou Center for Disease Control and Prevention, Huizhou 516001, China
| | - Run-Feng Li
- 1 State Key Laboratory of Respiratory Disease (Guangzhou Medical University), 2 National Clinical Research Center for Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China ; 3 Guangdong Center for Disease Control and Prevention, Guangzhou 511430, China ; 4 Health quarantine (BSL-3) Lab, Guangdong Inspection and Quarantine Technology Center, Guangzhou 510623, China ; 5 Clinical Laboratory, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China ; 6 Huizhou Center for Disease Control and Prevention, Huizhou 516001, China
| | - Min Kang
- 1 State Key Laboratory of Respiratory Disease (Guangzhou Medical University), 2 National Clinical Research Center for Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China ; 3 Guangdong Center for Disease Control and Prevention, Guangzhou 511430, China ; 4 Health quarantine (BSL-3) Lab, Guangdong Inspection and Quarantine Technology Center, Guangzhou 510623, China ; 5 Clinical Laboratory, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China ; 6 Huizhou Center for Disease Control and Prevention, Huizhou 516001, China
| | - Jie Wu
- 1 State Key Laboratory of Respiratory Disease (Guangzhou Medical University), 2 National Clinical Research Center for Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China ; 3 Guangdong Center for Disease Control and Prevention, Guangzhou 511430, China ; 4 Health quarantine (BSL-3) Lab, Guangdong Inspection and Quarantine Technology Center, Guangzhou 510623, China ; 5 Clinical Laboratory, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China ; 6 Huizhou Center for Disease Control and Prevention, Huizhou 516001, China
| | - Jin-Yan Lin
- 1 State Key Laboratory of Respiratory Disease (Guangzhou Medical University), 2 National Clinical Research Center for Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China ; 3 Guangdong Center for Disease Control and Prevention, Guangzhou 511430, China ; 4 Health quarantine (BSL-3) Lab, Guangdong Inspection and Quarantine Technology Center, Guangzhou 510623, China ; 5 Clinical Laboratory, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China ; 6 Huizhou Center for Disease Control and Prevention, Huizhou 516001, China
| | - Guo-Yun Ding
- 1 State Key Laboratory of Respiratory Disease (Guangzhou Medical University), 2 National Clinical Research Center for Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China ; 3 Guangdong Center for Disease Control and Prevention, Guangzhou 511430, China ; 4 Health quarantine (BSL-3) Lab, Guangdong Inspection and Quarantine Technology Center, Guangzhou 510623, China ; 5 Clinical Laboratory, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China ; 6 Huizhou Center for Disease Control and Prevention, Huizhou 516001, China
| | - Ji-Cheng Huang
- 1 State Key Laboratory of Respiratory Disease (Guangzhou Medical University), 2 National Clinical Research Center for Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China ; 3 Guangdong Center for Disease Control and Prevention, Guangzhou 511430, China ; 4 Health quarantine (BSL-3) Lab, Guangdong Inspection and Quarantine Technology Center, Guangzhou 510623, China ; 5 Clinical Laboratory, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China ; 6 Huizhou Center for Disease Control and Prevention, Huizhou 516001, China
| | - Wei-Qi Pan
- 1 State Key Laboratory of Respiratory Disease (Guangzhou Medical University), 2 National Clinical Research Center for Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China ; 3 Guangdong Center for Disease Control and Prevention, Guangzhou 511430, China ; 4 Health quarantine (BSL-3) Lab, Guangdong Inspection and Quarantine Technology Center, Guangzhou 510623, China ; 5 Clinical Laboratory, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China ; 6 Huizhou Center for Disease Control and Prevention, Huizhou 516001, China
| | - Rong Zhou
- 1 State Key Laboratory of Respiratory Disease (Guangzhou Medical University), 2 National Clinical Research Center for Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China ; 3 Guangdong Center for Disease Control and Prevention, Guangzhou 511430, China ; 4 Health quarantine (BSL-3) Lab, Guangdong Inspection and Quarantine Technology Center, Guangzhou 510623, China ; 5 Clinical Laboratory, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China ; 6 Huizhou Center for Disease Control and Prevention, Huizhou 516001, China
| | - Yong-Ping Lin
- 1 State Key Laboratory of Respiratory Disease (Guangzhou Medical University), 2 National Clinical Research Center for Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China ; 3 Guangdong Center for Disease Control and Prevention, Guangzhou 511430, China ; 4 Health quarantine (BSL-3) Lab, Guangdong Inspection and Quarantine Technology Center, Guangzhou 510623, China ; 5 Clinical Laboratory, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China ; 6 Huizhou Center for Disease Control and Prevention, Huizhou 516001, China
| | - Rong-Chang Chen
- 1 State Key Laboratory of Respiratory Disease (Guangzhou Medical University), 2 National Clinical Research Center for Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China ; 3 Guangdong Center for Disease Control and Prevention, Guangzhou 511430, China ; 4 Health quarantine (BSL-3) Lab, Guangdong Inspection and Quarantine Technology Center, Guangzhou 510623, China ; 5 Clinical Laboratory, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China ; 6 Huizhou Center for Disease Control and Prevention, Huizhou 516001, China
| | - Yi-Min Li
- 1 State Key Laboratory of Respiratory Disease (Guangzhou Medical University), 2 National Clinical Research Center for Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China ; 3 Guangdong Center for Disease Control and Prevention, Guangzhou 511430, China ; 4 Health quarantine (BSL-3) Lab, Guangdong Inspection and Quarantine Technology Center, Guangzhou 510623, China ; 5 Clinical Laboratory, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China ; 6 Huizhou Center for Disease Control and Prevention, Huizhou 516001, China
| | - Ling Chen
- 1 State Key Laboratory of Respiratory Disease (Guangzhou Medical University), 2 National Clinical Research Center for Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China ; 3 Guangdong Center for Disease Control and Prevention, Guangzhou 511430, China ; 4 Health quarantine (BSL-3) Lab, Guangdong Inspection and Quarantine Technology Center, Guangzhou 510623, China ; 5 Clinical Laboratory, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China ; 6 Huizhou Center for Disease Control and Prevention, Huizhou 516001, China
| | - Wen-Long Xiao
- 1 State Key Laboratory of Respiratory Disease (Guangzhou Medical University), 2 National Clinical Research Center for Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China ; 3 Guangdong Center for Disease Control and Prevention, Guangzhou 511430, China ; 4 Health quarantine (BSL-3) Lab, Guangdong Inspection and Quarantine Technology Center, Guangzhou 510623, China ; 5 Clinical Laboratory, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China ; 6 Huizhou Center for Disease Control and Prevention, Huizhou 516001, China
| | - Yong-Hui Zhang
- 1 State Key Laboratory of Respiratory Disease (Guangzhou Medical University), 2 National Clinical Research Center for Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China ; 3 Guangdong Center for Disease Control and Prevention, Guangzhou 511430, China ; 4 Health quarantine (BSL-3) Lab, Guangdong Inspection and Quarantine Technology Center, Guangzhou 510623, China ; 5 Clinical Laboratory, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China ; 6 Huizhou Center for Disease Control and Prevention, Huizhou 516001, China
| | - Nan-Shan Zhong
- 1 State Key Laboratory of Respiratory Disease (Guangzhou Medical University), 2 National Clinical Research Center for Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China ; 3 Guangdong Center for Disease Control and Prevention, Guangzhou 511430, China ; 4 Health quarantine (BSL-3) Lab, Guangdong Inspection and Quarantine Technology Center, Guangzhou 510623, China ; 5 Clinical Laboratory, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China ; 6 Huizhou Center for Disease Control and Prevention, Huizhou 516001, China
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Lam CT, Yang ZF, Lau JC, Ng MN, Yu WC, Ho DW, Fan ST. Abstract 5346: Identification of essential genes for the development of hepatitis B virus-associated hepatocellular carcinoma. Cancer Res 2014. [DOI: 10.1158/1538-7445.am2014-5346] [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 and Aim: Hepatocellular carcinoma (HCC) is a highly lethal and prevalent cancer, posing a grave threat to human health globally. Hepatitis B virus (HBV) infection is considered as a major risk factor for this cancer, especially in the Asia-Pacific region. Unfortunately, the molecular mechanisms of hepatocarcinogenesis remain obscure, which hinders the development of effective therapies for the disease. In the present study, we attempted to elucidate the molecular details of HBV-induced hepatocarcinogenesis by investigating differentially regulated genes at multiple developmental stages of HCC in a HBV transgenic mouse model. Materials and Methods: The transgenic mice which overproduced HBV large envelope polypeptide in hepatocytes and developed liver tumors spontaneously were used in this study. To unravel transcriptomics dynamics underlying hepatocarcinogenesis, RNA prepared from livers of both transgenic and wild type mice of different ages (at months 2, 12, 18 and 19) were subjected to RNA sequencing. Selected target genes were first validated by quantitative PCR (qPCR) using a larger set of mouse liver tissues (n=96) collected from 8 time points. Clinical implications of the selected genes were then explored in a set of human liver samples comprising 18 normal, 29 cirrhosis and 96 pairs of HCC. RNA and protein expression levels were determined by qPCR, immunohistochemical staining and Western blotting, respectively. Results: Upon analysis of 20,209 gene transcripts, 2574 and 1035 transcripts were found to be up-regulated (≥2 folds) and down-regulated (≤2 folds) in tumors, respectively, when compared with the wild type controls. Among these, 133 most prominent genes that exhibited concordant differential expression throughout the stages of tumor progression were chosen for validation in mouse liver tissues. Correlation analysis showed a high correlation between RNA sequencing and qPCR data (r=0.7495; P<0.0001), indicating a high validity of the data. Forty-six biologically informative genes were further validated in human liver samples. By Gene Ontology analysis, the target genes were revealed to play roles in a variety of biological processes including stress and inflammation responses, metabolic and apoptotic processes. Immunohistochemical staining and Western blotting demonstrated significant differential expression of these genes between HCC and non-tumorous livers. Statistical analyses revealed their significant correlation with clinicopathological parameters including venous infiltration, tumor size and overall survival, implicating their roles in hepatocarcinogenesis. Conclusion: This study has demonstrated a systematic strategy for identifying crucial genes for HBV-associated HCC, which may have profound implications in combating this deadly cancer.
Citation Format: CT Lam, ZF Yang, JC Lau, MN Ng, WC Yu, DW Ho, ST Fan. Identification of essential genes for the development of hepatitis B virus-associated hepatocellular carcinoma. [abstract]. In: Proceedings of the 105th Annual Meeting of the American Association for Cancer Research; 2014 Apr 5-9; San Diego, CA. Philadelphia (PA): AACR; Cancer Res 2014;74(19 Suppl):Abstract nr 5346. doi:10.1158/1538-7445.AM2014-5346
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Affiliation(s)
- CT Lam
- University of Hong Kong, Pokfulam, Hong Kong
| | - ZF Yang
- University of Hong Kong, Pokfulam, Hong Kong
| | - JC Lau
- University of Hong Kong, Pokfulam, Hong Kong
| | - MN Ng
- University of Hong Kong, Pokfulam, Hong Kong
| | - WC Yu
- University of Hong Kong, Pokfulam, Hong Kong
| | - DW Ho
- University of Hong Kong, Pokfulam, Hong Kong
| | - ST Fan
- University of Hong Kong, Pokfulam, Hong Kong
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Parhira S, Yang ZF, Zhu GY, Chen QL, Zhou BX, Wang YT, Liu L, Bai LP, Jiang ZH. In vitro anti-influenza virus activities of a new lignan glycoside from the latex of Calotropis gigantea. PLoS One 2014; 9:e104544. [PMID: 25102000 PMCID: PMC4125211 DOI: 10.1371/journal.pone.0104544] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2014] [Accepted: 07/10/2014] [Indexed: 12/03/2022] Open
Abstract
A new lignan glycoside, (+)-pinoresinol 4-O-[6″-O-vanilloyl]-β-d-glucopyranoside (1) and two known phenolic compounds, 6′-O-vanilloyltachioside (2) and 6′-O-vanilloylisotachioside (3) were isolated from the latex of Calotropis gigantea (Asclepiadaceae). The structure of the new compound was elucidated by using spectroscopic and chemical methods. Three isolates (1–3) and one authentic compound, (+)-pinoresinol 4-O-β-d-glucopyranoside, were screened for A/PR/8/34 (H1N1) inhibitory activity by cytopathic effect (CPE) inhibition assay on MDCK cells. Compound 1 showed inhibitory activity against A/PR/8/34 (H1N1). In sharp contrast, the other three compounds (2, 3 and (+)-pinoresinol 4-O-β-d-glucopyranoside) did not show such activity. An analysis of structure-activity relationship between 1 and (+)-pinoresinol 4-O-β-d-glucopyranoside revealed that the presence of a vanilloyl group in the sugar moiety of 1 is crucial for its anti-influenza virus activity. Compound 1 was further evaluated for in vitro inhibitory activities against a panel of human and avian influenza viruses by CPE inhibition assay. It showed inhibitory effect against human influenza viruses in both subtypes A and B (IC50 values around 13.4–39.8 µM with SI values of 3.7–11.4), while had no effect on avian influenza viruses. Its antiviral activity against human influenza viruses subtype A was further confirmed by plaque reduction assay. The time course assay indicated that 1 exerts its antiviral activity at the early stage of viral replication. A mechanistic study showed that 1 efficiently inhibited influenza virus-induced activation of NF-κB pathway in a dose-dependent manner, but had no effect on virus-induced activation of Raf/MEK/ERK pathway. Further studies demonstrated that nuclear translocation of transcription factor NF-κB induced by influenza virus was significantly blocked by 1, meanwhile, nuclear export of viral ribonucleoproteins was also effectively inhibited. These findings suggest that this new lignan glycoside from Calotropis gigantea, may have therapeutic potential in influenza virus infection through inhibition of NF-κB pathway and viral ribonucleoproteins nuclear export.
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Affiliation(s)
- Supawadee Parhira
- State Key Laboratory of Quality Research in Chinese Medicine, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Taipa, Macau
| | - Zi-Feng Yang
- State Key Laboratory of Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, People's Republic of China
| | - Guo-Yuan Zhu
- State Key Laboratory of Quality Research in Chinese Medicine, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Taipa, Macau
| | - Qiao-Lian Chen
- State Key Laboratory of Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, People's Republic of China
| | - Bei-Xian Zhou
- State Key Laboratory of Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, People's Republic of China
| | - Yu-Tao Wang
- State Key Laboratory of Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, People's Republic of China
| | - Liang Liu
- State Key Laboratory of Quality Research in Chinese Medicine, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Taipa, Macau
| | - Li-Ping Bai
- State Key Laboratory of Quality Research in Chinese Medicine, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Taipa, Macau
- * E-mail: (LPB); (ZHJ)
| | - Zhi-Hong Jiang
- State Key Laboratory of Quality Research in Chinese Medicine, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Taipa, Macau
- * E-mail: (LPB); (ZHJ)
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Li L, Chen QY, Li YY, Wang YF, Yang ZF, Zhong NS. Comparison among nasopharyngeal swab, nasal wash, and oropharyngeal swab for respiratory virus detection in adults with acute pharyngitis. BMC Infect Dis 2013; 13:281. [PMID: 23786598 PMCID: PMC3698019 DOI: 10.1186/1471-2334-13-281] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2013] [Accepted: 06/17/2013] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Acute pharyngitis is frequently seen in primary care. Acute viral pharyngitis may be easily misdiagnosed as acute bacterial pharyngitis. Laboratory-confirmed diagnosis of respiratory viruses is recommended. The purpose of this study was to compare the sensitivities among oropharyngeal swab (OPS), nasopharyngeal swab (NPS), and nasal wash (NW) in adults with acute pharyngitis. METHODS OPS, NPS, and NW were obtained from each participant with acute pharyngitis. The specimens were tested for 15 respiratory viruses by TaqMan real-time polymerase chain reaction. A sample was considered to be a true positive if any of the specimens was positive. The sensitivities among samples were compared by chi-square test or Fisher's exact test, as appropriate. RESULTS One hundred three triple samples collected consecutively by OPS, NPS, and NW were obtained. In 73 patients, one or more viruses were detected by any of the three methods. Among all viruses, the sensitivity of NPS was significantly higher than that of NW (74% vs. 49%, respectively; p < 0.01) and OPS (74% vs. 49%, respectively; p < 0.01). CONCLUSIONS Flocked NPS collection may be the most effective alternative to NW and OPS for detection of respiratory viruses in adults with acute pharyngitis using TaqMan real-time polymerase chain reaction.
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Affiliation(s)
- Li Li
- Guangzhou Institute of Respiratory Disease, State Key Laboratory of Respiratory Diseases (Guangzhou Medical University), The First Affiliated Hospital of Guangzhou Medical University, 151 Yanjiang Road, Guangzhou 510120, China
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Liu WK, Liu Q, Chen DH, Liang HX, Chen XK, Huang WB, Qin S, Yang ZF, Zhou R. Epidemiology and clinical presentation of the four human parainfluenza virus types. BMC Infect Dis 2013; 13:28. [PMID: 23343342 PMCID: PMC3560251 DOI: 10.1186/1471-2334-13-28] [Citation(s) in RCA: 94] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2012] [Accepted: 01/21/2013] [Indexed: 11/27/2022] Open
Abstract
Background Human parainfluenza viruses (HPIVs) are important causes of upper respiratory tract illness (URTI) and lower respiratory tract illness (LRTI). To analyse epidemiologic and clinical characteristics of the four types of human parainfluenza viruses (HPIVs), patients with acute respiratory tract illness (ARTI) were studied in Guangzhou, southern China. Methods Throat swabs (n=4755) were collected and tested from children and adults with ARTI over a 26-month period, and 4447 of 4755 (93.5%) patients’ clinical presentations were recorded for further analysis. Results Of 4755 patients tested, 178 (3.7%) were positive for HPIV. Ninety-nine (2.1%) samples were positive for HPIV-3, 58 (1.2%) for HPIV-1, 19 (0.4%) for HPIV-2 and 8 (0.2%) for HPIV-4. 160/178 (88.9%) HPIV-positive samples were from paediatric patients younger than 5 years old, but no infant under one month of age was HPIV positive. Seasonal peaks of HPIV-3 and HPIV-1 occurred as autumn turned to winter and summer turned to autumn. HPIV-2 and HPIV-4 were detected less frequently, and their frequency of isolation increased when the frequency of HPIV-3 and HPIV-1 declined. HPIV infection led to a wide spectrum of symptoms, and more “hoarseness” (p=0.015), “abnormal pulmonary breathing sound” (p<0.001), “dyspnoea” (p<0.001), “pneumonia” (p=0.01), and “diarrhoea” (p<0.001) presented in HPIV-positive patients than HPIV-negative patients. 10/10 (100%) HPIV-positive adult patients (≥14 years old) presented with systemic influenza-like symptoms, while 90/164 (54.9%) HPIV-positive paediatric patients (<14 years old) presented with these symptoms (p=0.005). The only significant difference in clinical presentation between HPIV types was “Expectoration” (p<0.001). Co-infections were common, with 33.3%–63.2% of samples positive for the four HPIV types also testing positive for other respiratory pathogens. However, no significant differences were seen in clinical presentation between patients solely infected with HPIV and patients co-infected with HPIV and other respiratory pathogens. Conclusions HPIV infection led to a wide spectrum of symptoms, and similar clinical manifestations were found in the patients with four different types of HPIVs. The study suggested pathogenic activity of HPIV in gastrointestinal illness. The clinical presentation of HPIV infection may differ by patient age.
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Affiliation(s)
- Wen-Kuan Liu
- State Key Laboratory of Respiratory Diseases (Guangzhou Medical University), 1 Kang Da Road, Guangzhou, Guangdong 510230, China
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Zhong NS, Li YM, Yang ZF, Wang C, Liu YN, Li XW, Shu YL, Wang GF, Gao ZC, Deng GH, He LX, Xi XM, Cao B, Shen KL, Wu H, Zhou PA, Li QQ. Chinese guidelines for diagnosis and treatment of influenza (2011). J Thorac Dis 2012; 3:274-89. [PMID: 22263103 DOI: 10.3978/j.issn.2072-1439.2011.10.01] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2011] [Accepted: 09/20/2011] [Indexed: 12/11/2022]
Affiliation(s)
- Nan-Shan Zhong
- National Key Laboratory of Respiratory Diseases, the First Affiliated Hospital of Guangzhou Medical College/Institute of Respiratory Diseases
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