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Li F, Zhao B, Liu YQ, Chen GQ, Qu RF, Xu C, Long Z, Wu JS, Xiong M, Liu WH, Zhu L, Feng XL, Zhang L. Hematochezia due to rectal invasion by an internal iliac artery aneurysm: A case report. World J Clin Cases 2024; 12:1980-1989. [PMID: 38660556 PMCID: PMC11036529 DOI: 10.12998/wjcc.v12.i11.1980] [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] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Revised: 03/01/2024] [Accepted: 03/21/2024] [Indexed: 04/11/2024] Open
Abstract
BACKGROUND This case report presents the rare occurrence of hematochezia due to an internal iliac artery aneurysm leading to an arterioenteric fistula, expanding the differential diagnosis for gastrointestinal bleeding. It emphasizes the importance of considering vascular origins in cases of atypical hematochezia, particularly in the absence of common gastrointestinal causes, and highlights the role of imaging and multidisciplinary management in diagnosing and treating such unusual presentations. CASE SUMMARY A 75-year-old man with a history of hypertension presented with 12 d of hematochezia, experiencing bloody stools 7-8 times per day. Initial computed tomography (CT) scans revealed an aneurysmal rupture near the right internal iliac artery with suspected hematoma development. Hemoglobin levels progressively decreased to 7 g/dL. Emergency arterial angiography and iliac artery-covered stent placement were performed, followed by balloon angioplasty. Despite initial stabilization, minor rectal bleeding and abdominal pain persisted, leading to further diagnostic colonoscopy. This identified a neoplasm and potential perforation at the proximal rectum. An exploratory laparotomy confirmed the presence of a hematoma and an aneurysm invading the rectal wall, necessitating partial rectal resection, intestinal anastomosis, and ileostomy. Postoperative recovery was successful, with no further bleeding incidents and normal follow-up CT and colonoscopy results after six months. CONCLUSION In cases of unusual gastrointestinal bleeding, it is necessary to consider vascular causes for effective diagnosis and intervention.
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Affiliation(s)
- Fang Li
- Department of General Surgery, Chongqing General Hospital, Chongqing 401147, China
| | - Bin Zhao
- Department of General Surgery, Chongqing General Hospital, Chongqing 401147, China
| | - Yong-Qiang Liu
- Department of General Surgery, Chongqing General Hospital, Chongqing 401147, China
| | - Guo-Qing Chen
- Department of General Surgery, Chongqing General Hospital, Chongqing 401147, China
| | - Rong-Feng Qu
- Department of General Surgery, Chongqing General Hospital, Chongqing 401147, China
| | - Chao Xu
- Department of General Surgery, Chongqing General Hospital, Chongqing 401147, China
| | - Zhui Long
- Department of General Surgery, Chongqing General Hospital, Chongqing 401147, China
| | - Jin-Song Wu
- Department of General Surgery, Chongqing General Hospital, Chongqing 401147, China
| | - Mao Xiong
- Department of General Surgery, Chongqing General Hospital, Chongqing 401147, China
| | - Wei-Hang Liu
- Department of General Surgery, Chongqing General Hospital, Chongqing 401147, China
| | - Li Zhu
- Department of General Surgery, Chongqing General Hospital, Chongqing 401147, China
| | - Xiao-Ling Feng
- Department of General Surgery, Chongqing General Hospital, Chongqing 401147, China
| | - Lei Zhang
- Department of General Surgery, Chongqing General Hospital, Chongqing 401147, China
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Lin YS, Sun Z, Shen LS, Gong RH, Chen JW, Xu Y, Yu H, Chen S, Chen GQ. Arnicolide D induces endoplasmic reticulum stress-mediated oncosis via ATF4 and CHOP in hepatocellular carcinoma cells. Cell Death Discov 2024; 10:134. [PMID: 38472168 DOI: 10.1038/s41420-024-01911-w] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2023] [Revised: 03/05/2024] [Accepted: 03/06/2024] [Indexed: 03/14/2024] Open
Abstract
Endoplasmic reticulum (ER) stress can trigger various cell death mechanisms beyond apoptosis, providing promise in cancer treatment. Oncosis, characterized by cellular swelling and increased membrane permeability, represents a non-apoptotic form of cell death. In our study, we discovered that Arnicolide D (AD), a natural sesquiterpene lactone compound, induces ER stress-mediated oncosis in hepatocellular carcinoma (HCC) cells, and this process is reactive oxygen species (ROS)-dependent. Furthermore, we identified the activation of the PERK-eIF2α-ATF4-CHOP pathway during ER stress as a pivotal factor in AD-induced oncosis. Notably, the protein synthesis inhibitor cycloheximide (CHX) was found to effectively reverse AD-induced oncosis, suggesting ATF4 and CHOP may hold crucial roles in the induction of oncosis by AD. These proteins play a vital part in promoting protein synthesis during ER stress, ultimately leading to cell death. Subsequent studies, in where we individually or simultaneously knocked down ATF4 and CHOP in HCC cells, provided further confirmation of their indispensable roles in AD-induced oncosis. Moreover, additional animal experiments not only substantiated AD's ability to inhibit HCC tumor growth but also solidified the essential role of ER stress-mediated and ROS-dependent oncosis in AD's therapeutic potential. In summary, our research findings strongly indicate that AD holds promise as a therapeutic agent for HCC by its ability to induce oncosis.
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Affiliation(s)
- Yu-Shan Lin
- State Key Laboratory of Chinese Medicine and Molecular Pharmacology (Incubation), The Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen, 518057, China
| | - Zhiwei Sun
- State Key Laboratory of Chinese Medicine and Molecular Pharmacology (Incubation), The Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen, 518057, China
| | - Li-Sha Shen
- Chongqing Academy of Chinese Materia Medica, Chongqing, 400065, China
| | - Rui-Hong Gong
- Department of Food Science and Nutrition, The Hong Kong Polytechnic University, Hung Hom, 999077, Hong Kong, China
| | - Jia-Wen Chen
- State Key Laboratory of Chinese Medicine and Molecular Pharmacology (Incubation), The Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen, 518057, China
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, 100193, Beijing, China
| | - Yanfeng Xu
- Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai, 200071, China
| | - Haiyang Yu
- Key Laboratory of Pharmacology of Traditional Chinese Medical Formulae, Ministry of Education, and State Key Laboratory of Component-Based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, China
| | - Sibao Chen
- State Key Laboratory of Chinese Medicine and Molecular Pharmacology (Incubation), The Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen, 518057, China.
- Department of Food Science and Nutrition, The Hong Kong Polytechnic University, Hung Hom, 999077, Hong Kong, China.
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, 100193, Beijing, China.
- Research Centre for Chinese Medicine Innovation, The Hong Kong Polytechnic University, Hung Hom, 999077, Hong Kong, China.
| | - Guo-Qing Chen
- State Key Laboratory of Chinese Medicine and Molecular Pharmacology (Incubation), The Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen, 518057, China.
- Department of Food Science and Nutrition, The Hong Kong Polytechnic University, Hung Hom, 999077, Hong Kong, China.
- Research Centre for Chinese Medicine Innovation, The Hong Kong Polytechnic University, Hung Hom, 999077, Hong Kong, China.
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Ma L, Ma C, Chen G, Gu J, Yang T, Li L, Gao H, Xiong Y, Wu Y, Zhu C, Zhou Y, Hu A, Chen K, Liu Z. Nitrogen and Sulfur co-doped Carbon dots as an "on-off-on" Fluorescent Sensor for the Detection of Hg 2+ and Ampicillin. J Fluoresc 2024:10.1007/s10895-024-03656-2. [PMID: 38457076 DOI: 10.1007/s10895-024-03656-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Accepted: 03/01/2024] [Indexed: 03/09/2024]
Abstract
Herein, a fluorescent "on-off-on" nanosensor based on N,S-CDs was developed for highly precise and sensitive recognition of Hg2+ and ampicillin (AMP). Nitrogen and sulfur co-doped carbon dots with blue fluorescence were synthesized by one-pot hydrothermal method using ammonium citrate and DL-methionine as precursors. N,S-CDs exhibited a surface abundant in -OH, -COOH, and -NH2 groups, aiding in creating non-fluorescent ground state complexes when combined with Hg2+, leading to the suppression of N,S-CDs' fluorescence. Subsequent to additional AMP application, the mixed system's fluorescence was restored. Based on this N,S-CDs sensing system, the thresholds for detection for AMP and Hg2+ were discovered to be 0.121 µM and 0.493 µM, respectively. Furthermore, this methodology proved effective in identifying AMP in real samples of tap and lake water, yielding satisfactory results. Consequently, in the area of bioanalysis in intricate environmental sample work, the sensing system showed tremendous promise.
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Affiliation(s)
- LongYao Ma
- School of Science, Jiangnan University, Wuxi, 214122, China
- Jiangsu Provincial Research Center of Light Industrial optoelectronic engineering and Technology, Wuxi, 214122, China
| | - ChaoQun Ma
- School of Science, Jiangnan University, Wuxi, 214122, China.
- Jiangsu Provincial Research Center of Light Industrial optoelectronic engineering and Technology, Wuxi, 214122, China.
| | - GuoQing Chen
- School of Science, Jiangnan University, Wuxi, 214122, China
- Jiangsu Provincial Research Center of Light Industrial optoelectronic engineering and Technology, Wuxi, 214122, China
| | - Jiao Gu
- School of Science, Jiangnan University, Wuxi, 214122, China
- Jiangsu Provincial Research Center of Light Industrial optoelectronic engineering and Technology, Wuxi, 214122, China
| | - Taiqun Yang
- School of Science, Jiangnan University, Wuxi, 214122, China
- Jiangsu Provincial Research Center of Light Industrial optoelectronic engineering and Technology, Wuxi, 214122, China
| | - Lei Li
- School of Science, Jiangnan University, Wuxi, 214122, China
- Jiangsu Provincial Research Center of Light Industrial optoelectronic engineering and Technology, Wuxi, 214122, China
| | - Hui Gao
- School of Science, Jiangnan University, Wuxi, 214122, China
- Jiangsu Provincial Research Center of Light Industrial optoelectronic engineering and Technology, Wuxi, 214122, China
| | - Yi Xiong
- School of Science, Jiangnan University, Wuxi, 214122, China
- Jiangsu Provincial Research Center of Light Industrial optoelectronic engineering and Technology, Wuxi, 214122, China
| | - Yamin Wu
- School of Science, Jiangnan University, Wuxi, 214122, China
- Jiangsu Provincial Research Center of Light Industrial optoelectronic engineering and Technology, Wuxi, 214122, China
| | - Chun Zhu
- School of Science, Jiangnan University, Wuxi, 214122, China
- Jiangsu Provincial Research Center of Light Industrial optoelectronic engineering and Technology, Wuxi, 214122, China
| | - Yan Zhou
- School of Science, Jiangnan University, Wuxi, 214122, China
- Jiangsu Provincial Research Center of Light Industrial optoelectronic engineering and Technology, Wuxi, 214122, China
| | - Anqi Hu
- School of Science, Jiangnan University, Wuxi, 214122, China
- Jiangsu Provincial Research Center of Light Industrial optoelectronic engineering and Technology, Wuxi, 214122, China
| | - Kun Chen
- School of Science, Jiangnan University, Wuxi, 214122, China
- Jiangsu Provincial Research Center of Light Industrial optoelectronic engineering and Technology, Wuxi, 214122, China
| | - ZhaoChen Liu
- School of Science, Jiangnan University, Wuxi, 214122, China
- Jiangsu Provincial Research Center of Light Industrial optoelectronic engineering and Technology, Wuxi, 214122, China
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Du YH, Zhao JJ, Li X, Huang SC, Ning N, Chen GQ, Yang Y, Nan Y, Yuan L. Mechanism of pachymic acid in the treatment of gastric cancer based on network pharmacology and experimental verification. World J Gastrointest Oncol 2024; 16:30-50. [PMID: 38292852 PMCID: PMC10824110 DOI: 10.4251/wjgo.v16.i1.30] [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] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/29/2023] [Revised: 10/07/2023] [Accepted: 11/02/2023] [Indexed: 01/11/2024] Open
Abstract
BACKGROUND Pachymic acid (PA) is derived from Poria cocos. PA has a variety of pharmacological and inhibitory effects on various tumors. However, the mechanism of action of PA in gastric cancer (GC) remains unclear. AIM To investigate the mechanism of PA in treating GC via the combination of network pharmacology and experimental verification. METHODS The GeneCards and OMIM databases were used to derive the GC targets, while the Pharm Mapper database provided the PA targets. Utilizing the STRING database, a protein-protein interaction network was constructed and core targets were screened. The analyses of Gene Ontology, Kyoto Encyclopedia of Genes and Genomes (KEGG), and gene set enrichment analysis were conducted, and molecular docking and clinical correlation analyses were performed on the core targets. Ultimately, the network pharmacology findings were validated through in vitro cell assays, encompassing assessments of cell viability, apoptosis, cell cycle, cloning, and western blot analysis. RESULTS According to network pharmacology analysis, the core targets were screened, and the PI3K/AKT signaling pathway is likely to be the mechanism by which PA effectively treats GC, according to KEGG enrichment analysis. The experimental findings showed that PA could control PI3K/AKT signaling to prevent GC cell proliferation, induce apoptosis, and pause the cell cycle. CONCLUSION Network pharmacology demonstrated that PA could treat GC by controlling a variety of signaling pathways and acting on a variety of targets. This has also been supported by in vitro cell studies, which serve as benchmarks for further research.
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Affiliation(s)
- Yu-Hua Du
- College of Pharmacy, Ningxia Medical University, Yinchuan 750004, Ningxia Hui Autonomous Region, China
| | - Jian-Jun Zhao
- College of Pharmacy, Ningxia Medical University, Yinchuan 750004, Ningxia Hui Autonomous Region, China
| | - Xia Li
- College of Pharmacy, Ningxia Medical University, Yinchuan 750004, Ningxia Hui Autonomous Region, China
- Ningxia Chinese Medicine Research Center, Manufacturing Laboratory, Yinchuan 750004, Ningxia Hui Autonomous Region, China
| | - Shi-Cong Huang
- College of Pharmacy, Ningxia Medical University, Yinchuan 750004, Ningxia Hui Autonomous Region, China
| | - Na Ning
- College of Pharmacy, Ningxia Medical University, Yinchuan 750004, Ningxia Hui Autonomous Region, China
| | - Guo-Qing Chen
- College of Pharmacy, Ningxia Medical University, Yinchuan 750004, Ningxia Hui Autonomous Region, China
| | - Yi Yang
- College of Foundation, Ningxia Medical University, Yinchuan 750004, Ningxia Hui Autonomous Region, China
| | - Yi Nan
- Key Laboratory of Ningxia Minority Medicine Modernization Ministry of Education, Ningxia Medical University, Yinchuan 750004, Ningxia Hui Autonomous Region, China
| | - Ling Yuan
- College of Pharmacy, Ningxia Medical University, Yinchuan 750004, Ningxia Hui Autonomous Region, China
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Li F, Zhao B, Zhang L, Chen GQ, Zhu L, Feng XL, Yao H, Tang XF, Yang H, Liu YQ. Rare synchronous colorectal carcinoma with three pathological subtypes: A case report and review of the literature. World J Clin Cases 2023; 11:8343-8349. [PMID: 38130619 PMCID: PMC10731193 DOI: 10.12998/wjcc.v11.i35.8343] [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] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Revised: 09/14/2023] [Accepted: 11/30/2023] [Indexed: 12/14/2023] Open
Abstract
BACKGROUND Synchronous colorectal carcinomas (SCRC) are two or more primary colorectal carcinomas identified simultaneously or within 6 mo of the initial presentation in a single patient. Their incidence is low and the number of pathological types of SCRC is usually no more than two. It is very unusual that the pathological findings of a patient with SCRC show more than two different pathological subtypes. Here, we report a rare case of SCRC with three pathological subtypes. CASE SUMMARY A 75-year-old woman who had no previous medical history or family history was admitted to the hospital because of intermittent hematochezia for more than a month. Colonoscopy displayed an irregularly shaped neoplasm of the rectum, a tumor-like lesion causing intestinal stenosis in the descending colon, and a polypoidal neoplasm in the ileocecum. Subsequently, she underwent total colectomy, abdominoperineal resection for rectal cancer, and ileostomy. After operation, the pathological report showed three pathological subtypes including well-differentiated adenocarcinoma of the ascending colon, moderately differentiated adenocarcinoma of the descending colon, and mucinous adenocarcinoma of the rectum. She is now recovering well and continues to be closely monitored during follow-up. CONCLUSION Preoperative colonoscopy examination, imaging examination, and extensive intraoperative exploration play important roles in reducing the number of missed lesions.
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Affiliation(s)
- Fang Li
- Department of General Surgery, Chongqing General Hospital, Chongqing 401120, China
| | - Bin Zhao
- Department of General Surgery, Chongqing General Hospital, Chongqing 401120, China
| | - Lei Zhang
- Department of General Surgery, Chongqing General Hospital, Chongqing 401120, China
| | - Guo-Qing Chen
- Department of General Surgery, Chongqing General Hospital, Chongqing 401120, China
| | - Li Zhu
- Department of General Surgery, Chongqing General Hospital, Chongqing 401120, China
| | - Xiao-Ling Feng
- Department of General Surgery, Chongqing General Hospital, Chongqing 401120, China
| | - Hui Yao
- Department of Pathology, Chongqing General Hospital, Chongqing 401147, China
| | - Xue-Feng Tang
- Department of Pathology, Chongqing General Hospital, Chongqing 401147, China
| | - Hua Yang
- Department of General Surgery, Chongqing General Hospital, Chongqing 401120, China
| | - Yong-Qiang Liu
- Department of General Surgery, Chongqing General Hospital, Chongqing 401120, China
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Lin J, Qu Z, Pu H, Shen LS, Yi X, Lin YS, Gong RH, Chen GQ, Chen S. In Vitro and In Vivo Anti-Cancer Activity of Lasiokaurin in a Triple-Negative Breast Cancer Model. Molecules 2023; 28:7701. [PMID: 38067432 PMCID: PMC10707582 DOI: 10.3390/molecules28237701] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Revised: 08/17/2023] [Accepted: 08/17/2023] [Indexed: 12/18/2023] Open
Abstract
Due to its intricate heterogeneity, high invasiveness, and poor prognosis, triple-negative breast cancer (TNBC) stands out as the most formidable subtype of breast cancer. At present, chemotherapy remains the prevailing treatment modality for TNBC, primarily due to its lack of estrogen receptors (ERs), progesterone receptors (PRs), and human epidermal growth receptor 2 (HER2). However, clinical chemotherapy for TNBC is marked by its limited efficacy and a pronounced incidence of adverse effects. Consequently, there is a pressing need for novel drugs to treat TNBC. Given the rich repository of diverse natural compounds in traditional Chinese medicine, identifying potential anti-TNBC agents is a viable strategy. This study investigated lasiokaurin (LAS), a natural diterpenoid abundantly present in Isodon plants, revealing its significant anti-TNBC activity both in vitro and in vivo. Notably, LAS treatment induced cell cycle arrest, apoptosis, and DNA damage in TNBC cells, while concurrently inhibiting cell metastasis. In addition, LAS effectively inhibited the activation of the phosphatidylinositol-3-kinase/protein kinase B/mammalian target of rapamycin (PI3K/Akt/mTOR) pathway and signal transducer and activator of transcription 3 (STAT3), thus establishing its potential for multitarget therapy against TNBC. Furthermore, LAS demonstrated its ability to reduce tumor growth in a xenograft mouse model without exerting detrimental effects on the body weight or vital organs, confirming its safe applicability for TNBC treatment. Overall, this study shows that LAS is a potent candidate for treating TNBC.
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Affiliation(s)
- Jinrong Lin
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100193, China
| | - Zhao Qu
- Third-Grade Pharmacological Laboratory on Chinese Medicine Approved by State Administration of Traditional Chinese Medicine, Medical College, China Three Gorges University, Yichang 443002, China
| | - Huanhuan Pu
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100193, China
| | - Li-Sha Shen
- Chongqing Academy of Chinese Materia Medica, Chongqing 400065, China
| | - Xianguo Yi
- College of Animal Science and Technology, Xinyang Agricultural and Forestry University, Xinyang 464000, China;
| | - Yu-Shan Lin
- State Key Laboratory of Chinese Medicine and Molecular Pharmacology (Incubation), The Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen 518057, China
| | - Rui-Hong Gong
- Department of Food Science and Nutrition, The Hong Kong Polytechnic University, Hung Hom, Hong Kong 999077, China
| | - Guo-Qing Chen
- State Key Laboratory of Chinese Medicine and Molecular Pharmacology (Incubation), The Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen 518057, China
- Department of Food Science and Nutrition, The Hong Kong Polytechnic University, Hung Hom, Hong Kong 999077, China
- Research Centre for Chinese Medicine Innovation, The Hong Kong Polytechnic University, Hung Hom, Hong Kong 999077, China
| | - Sibao Chen
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100193, China
- State Key Laboratory of Chinese Medicine and Molecular Pharmacology (Incubation), The Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen 518057, China
- Department of Food Science and Nutrition, The Hong Kong Polytechnic University, Hung Hom, Hong Kong 999077, China
- Research Centre for Chinese Medicine Innovation, The Hong Kong Polytechnic University, Hung Hom, Hong Kong 999077, China
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Chen GQ, Nan Y, Huang SC, Ning N, Du YH, Lu DD, Yang YT, Meng FD, Yuan L. Research progress of ginger in the treatment of gastrointestinal tumors. World J Gastrointest Oncol 2023; 15:1835-1851. [DOI: 10.4251/wjgo.v15.i11.1835] [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] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/09/2023] [Revised: 09/15/2023] [Accepted: 09/27/2023] [Indexed: 11/15/2023] Open
Abstract
Cancer seriously endangers human health. Gastrointestinal cancer is the most common and major malignant tumor, and its morbidity and mortality are gradually increasing. Although there are effective treatments such as radiotherapy and chemotherapy for gastrointestinal tumors, they are often accompanied by serious side effects. According to the traditional Chinese medicine and food homology theory, many materials are both food and medicine. Moreover, food is just as capable of preventing and treating diseases as medicine. Medicine and food homologous herbs not only have excellent pharmacological effects and activities but also have few side effects. As a typical medicinal herb with both medicinal and edible uses, some components of ginger have been shown to have good efficacy and safety against cancer. A mass of evidence has also shown that ginger has anti-tumor effects on digestive tract cancers (such as gastric cancer, colorectal cancer, liver cancer, laryngeal cancer, and pancreatic cancer) through a variety of pathways. The aim of this study is to investigate the mechanisms of action of the main components of ginger and their potential clinical applications in treating gastrointestinal tumors.
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Affiliation(s)
- Guo-Qing Chen
- College of Pharmacy, Ningxia Medical College, Yinchuan 750004, Ningxia Hui Autonomous Region, China
| | - Yi Nan
- Key Laboratory of Ningxia Ethnomedicine Modernization, Ministry of Education, Ningxia Medical University, Yinchuan 750004, Ningxia Hui Autonomous Region, China
- Traditional Chinese Medicine College, Ningxia Medical University, Yinchuan 750004, Ningxia Hui Autonomous Region, China
| | - Shi-Cong Huang
- College of Pharmacy, Ningxia Medical College, Yinchuan 750004, Ningxia Hui Autonomous Region, China
| | - Na Ning
- College of Pharmacy, Ningxia Medical College, Yinchuan 750004, Ningxia Hui Autonomous Region, China
| | - Yu-Hua Du
- College of Pharmacy, Ningxia Medical College, Yinchuan 750004, Ningxia Hui Autonomous Region, China
| | - Dou-Dou Lu
- School of Clinical Medicine College, Ningxia Medical University, Yinchuan 750004, Ningxia Hui Autonomous Region, China
| | - Ya-Ting Yang
- Traditional Chinese Medicine College, Ningxia Medical University, Yinchuan 750004, Ningxia Hui Autonomous Region, China
| | - Fan-Di Meng
- Traditional Chinese Medicine College, Ningxia Medical University, Yinchuan 750004, Ningxia Hui Autonomous Region, China
| | - Ling Yuan
- College of Pharmacy, Ningxia Medical College, Yinchuan 750004, Ningxia Hui Autonomous Region, China
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Chen GQ, Guo HY, Quan ZS, Shen QK, Li X, Luan T. Natural Products-Pyrazine Hybrids: A Review of Developments in Medicinal Chemistry. Molecules 2023; 28:7440. [PMID: 37959859 PMCID: PMC10649211 DOI: 10.3390/molecules28217440] [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: 10/13/2023] [Revised: 11/02/2023] [Accepted: 11/03/2023] [Indexed: 11/15/2023] Open
Abstract
Pyrazine is a six-membered heterocyclic ring containing nitrogen, and many of its derivatives are biologically active compounds. References have been downloaded through Web of Science, PubMed, Science Direct, and SciFinder Scholar. The structure, biological activity, and mechanism of natural product derivatives containing pyrazine fragments reported from 2000 to September 2023 were reviewed. Publications reporting only the chemistry of pyrazine derivatives are beyond the scope of this review and have not been included. The results of research work show that pyrazine-modified natural product derivatives have a wide range of biological activities, including anti-inflammatory, anticancer, antibacterial, antiparasitic, and antioxidant activities. Many of these derivatives exhibit stronger pharmacodynamic activity and less toxicity than their parent compounds. This review has a certain reference value for the development of heterocyclic compounds, especially pyrazine natural product derivatives.
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Affiliation(s)
- Guo-Qing Chen
- Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, College of Pharmacy, Yanbian University, Yanji 133002, China; (G.-Q.C.); (H.-Y.G.); (Z.-S.Q.); (Q.-K.S.)
| | - Hong-Yan Guo
- Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, College of Pharmacy, Yanbian University, Yanji 133002, China; (G.-Q.C.); (H.-Y.G.); (Z.-S.Q.); (Q.-K.S.)
| | - Zhe-Shan Quan
- Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, College of Pharmacy, Yanbian University, Yanji 133002, China; (G.-Q.C.); (H.-Y.G.); (Z.-S.Q.); (Q.-K.S.)
| | - Qing-Kun Shen
- Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, College of Pharmacy, Yanbian University, Yanji 133002, China; (G.-Q.C.); (H.-Y.G.); (Z.-S.Q.); (Q.-K.S.)
| | - Xiaoting Li
- Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, College of Pharmacy, Yanbian University, Yanji 133002, China; (G.-Q.C.); (H.-Y.G.); (Z.-S.Q.); (Q.-K.S.)
| | - Tian Luan
- Department of Pharmacy, Shenyang Medical College, Shenyang 110034, China
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Xue J, Chen SS, Jian R, Chen GQ, Xie G, Du L, Guo WP. Molecular evidence of Rickettsia canadensis in ticks, Hebei, China. Infect Genet Evol 2023; 115:105506. [PMID: 37742909 DOI: 10.1016/j.meegid.2023.105506] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Revised: 09/13/2023] [Accepted: 09/21/2023] [Indexed: 09/26/2023]
Abstract
China was affected severely by tick-borne rickettsiosis, and more than 10 Rickettsia species pathogenic to humans have been identified. In recent years, several Rickettsia members, with unknown pathogenicity, firstly identified abroad have been found in China. In this study, parasitic and questing ticks were recovered from two sampling sites in Hebei, China. Specific primers targeting outer membrane protein B (ompB) gene were designed to test the presence of Rickettsia canadensis by nested Polymerase Chain Reaction (PCR). As a result, a total of 428 ticks, including 232 ticks (including 230 Haemaphysalis longicornis and two H. japonica) from Laiyuan County and 196 (H. longicornis) from Luanping County, were collected. Sequencing of PCR products with the expected size and subsequently BLAST showed that 38H. longicornis ticks tested positive for R. canadensis, with an overall positive rate of 8.8%. In addition, 800-bp ompB gene and nearly complete citrate synthase (gltA) gene were recovered from six randomly selected positive samples to better understand their genetic characteristics. Nucleotide identity and phylogenetic analyses showed that R. canadensis presented geographical clustering with evidence that variants identified in the current study presented closer genetic relationship with others identified in Asian than those found in North America. In addition, epidemiological data suggested that H. longicornis may be the competent vector, and more attention should be paid to R. canadensis due to its zoonotic potential. In sum, R. canadensis was confirmed to be present in Hebei Province, China, and its surveillance in ticks should be strengthened due to potential pathogenicity, higher positive rate in ticks and wide distribution of possible vector tick species.
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Affiliation(s)
- Jing Xue
- College of Basic Medicine, Chengde Medical University, Chengde, Hebei, China
| | - Si-Si Chen
- College of Basic Medicine, Chengde Medical University, Chengde, Hebei, China
| | - Rui Jian
- College of Basic Medicine, Chengde Medical University, Chengde, Hebei, China
| | - Guo-Qing Chen
- Yancheng Center for Disease Control and Prevention, Yancheng, Jiangsu, China
| | - Guangcheng Xie
- College of Basic Medicine, Chengde Medical University, Chengde, Hebei, China
| | - Luanying Du
- College of Basic Medicine, Chengde Medical University, Chengde, Hebei, China
| | - Wen-Ping Guo
- College of Basic Medicine, Chengde Medical University, Chengde, Hebei, China.
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10
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Chen JW, Chen S, Chen GQ. Recent advances in natural compounds inducing non-apoptotic cell death for anticancer drug resistance. Cancer Drug Resist 2023; 6:729-747. [PMID: 38239395 PMCID: PMC10792489 DOI: 10.20517/cdr.2023.78] [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] [Subscribe] [Scholar Register] [Received: 07/08/2023] [Revised: 09/22/2023] [Accepted: 10/10/2023] [Indexed: 01/22/2024]
Abstract
The induction of cell death is recognized as a potent strategy for cancer treatment. Apoptosis is an extensively studied form of cell death, and multiple anticancer drugs exert their therapeutic effects by inducing it. Nonetheless, apoptosis evasion is a hallmark of cancer, rendering cancer cells resistant to chemotherapy drugs. Consequently, there is a growing interest in exploring novel non-apoptotic forms of cell death, such as ferroptosis, necroptosis, pyroptosis, and paraptosis. Natural compounds with anticancer properties have garnered significant attention due to their advantages, including a reduced risk of drug resistance. Over the past two decades, numerous natural compounds have been discovered to exert anticancer and anti-resistance effects by triggering these four non-apoptotic cell death mechanisms. This review primarily focuses on these four non-apoptotic cell death mechanisms and their recent advancements in overcoming drug resistance in cancer treatment. Meanwhile, it highlights the role of natural compounds in effectively addressing cancer drug resistance through the induction of these forms of non-apoptotic cell death.
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Affiliation(s)
- Jia-Wen Chen
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100193, China
- State Key Laboratory of Chinese Medicine and Molecular Pharmacology (Incubation), The Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen 518057, Guangdong, China
| | - Sibao Chen
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100193, China
- State Key Laboratory of Chinese Medicine and Molecular Pharmacology (Incubation), The Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen 518057, Guangdong, China
- Department of Food Science and Nutrition, The Hong Kong Polytechnic University, Hung Hom, Hong Kong 999077, China
- Research Centre for Chinese Medicine Innovation, The Hong Kong Polytechnic University, Hung Hom, Hong Kong 999077, China
| | - Guo-Qing Chen
- State Key Laboratory of Chinese Medicine and Molecular Pharmacology (Incubation), The Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen 518057, Guangdong, China
- Department of Food Science and Nutrition, The Hong Kong Polytechnic University, Hung Hom, Hong Kong 999077, China
- Research Centre for Chinese Medicine Innovation, The Hong Kong Polytechnic University, Hung Hom, Hong Kong 999077, China
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11
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Li X, Tibenda JJ, Nan Y, Huang SC, Ning N, Chen GQ, Du YH, Yang YT, Meng FD, Yuan L. MiR-204-3p overexpression inhibits gastric carcinoma cell proliferation by inhibiting the MAPK pathway and RIP1/MLK1 necroptosis pathway to promote apoptosis. World J Gastroenterol 2023; 29:4542-4556. [PMID: 37621755 PMCID: PMC10445008 DOI: 10.3748/wjg.v29.i29.4542] [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] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/06/2023] [Revised: 05/24/2023] [Accepted: 07/05/2023] [Indexed: 08/02/2023] Open
Abstract
BACKGROUND Gastric carcinoma (GC) is the third most frequent cause of cancer-related death, highlighting the pressing need for novel clinical treatment options. In this regard, microRNAs (miRNAs) have emerged as a promising therapeutic strategy. Studies have shown that miRNAs can regulate related signaling pathways, acting as tumor suppressors or tumor promoters. AIM To explore the effect of miR-204-3p on GC cells. METHODS We measured the expression levels of miR-204-3p in GC cells using quantitative real-time polymerase chain reaction, followed by the delivery of miR-204-3p overexpression and miR-204-3p knockdown vectors into GC cells. CCK-8 was used to detect the effect of miR-204-3p on the proliferation of GC cells, and the colony formation ability of GC cells was detected by the clonal formation assay. The effects of miR-204-3p on GC cell cycle and apoptosis were detected by flow cytometry. The BABL/c nude mouse subcutaneous tumor model using MKN-45 cells was constructed to verify the effect of miR-204-3p on the tumorigenicity of GC cells. Furthermore, the study investigated the effects of miR-204-3p on various proteins related to the MAPK signaling pathway, necroptosis signaling pathway and apoptosis signaling pathway on GC cells using Western blot techniques. RESULTS Firstly, we found that the expression of miR-204-3p in GC was low. When treated with the lentivirus overexpression vector, miR-204-3p expression significantly increased, but the lentivirus knockout vector had no significant effect on miR-204-3p. In vitro experiments confirmed that miR-204-3p overexpression inhibited GC cell viability, promoted cell apoptosis, blocked the cell cycle, and inhibited colony formation ability. In vivo animal experiments confirmed that miR-204-3p overexpression inhibited subcutaneous tumorigenesis ability in BABL/c nude mice. Simultaneously, our results verified that miR-204-3p overexpression can inhibit GC cell proliferation by inhibiting protein expression levels of KRAS and p-ERK1/2 in the MAPK pathway, as well as inhibiting protein expression levels of p-RIP1 and p-MLK1 in the necroptosis pathway to promote the BCL-2/BAX/Caspase-3 apoptosis pathway. CONCLUSION MiR-204-3p overexpression inhibited GC cell proliferation by inhibiting the MAPK pathway and necroptosis pathway to promote apoptosis of GC cells. Thus, miR-204-3p may represent a new potential therapeutic target for GC.
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Affiliation(s)
- Xia Li
- College of Pharmacy, Ningxia Medical University, Yinchuan 750004, Ningxia Hui Autonomous Region, China
- Ningxia Chinese Medicine Reserch Center, Yinchuan 750004, Ningxia Hui Autonomous Region, China
| | - Joanna J Tibenda
- College of Pharmacy, Ningxia Medical University, Yinchuan 750004, Ningxia Hui Autonomous Region, China
| | - Yi Nan
- Key Laboratory of Hui Ethnic Medicine Modernization of Ministry of Education, Ningxia Medical University, Yinchuan 750004, Ningxia Hui Autonomous Region, China
- Traditional Chinese Medicine College, Ningxia Medical University, Yinchuan 750004, Ningxia Hui Autonomous Region, China
| | - Shi-Cong Huang
- College of Pharmacy, Ningxia Medical University, Yinchuan 750004, Ningxia Hui Autonomous Region, China
| | - Na Ning
- College of Pharmacy, Ningxia Medical University, Yinchuan 750004, Ningxia Hui Autonomous Region, China
| | - Guo-Qing Chen
- College of Pharmacy, Ningxia Medical University, Yinchuan 750004, Ningxia Hui Autonomous Region, China
| | - Yu-Hua Du
- College of Pharmacy, Ningxia Medical University, Yinchuan 750004, Ningxia Hui Autonomous Region, China
| | - Ya-Ting Yang
- Traditional Chinese Medicine College, Ningxia Medical University, Yinchuan 750004, Ningxia Hui Autonomous Region, China
| | - Fan-Di Meng
- Key Laboratory of Hui Ethnic Medicine Modernization of Ministry of Education, Ningxia Medical University, Yinchuan 750004, Ningxia Hui Autonomous Region, China
| | - Ling Yuan
- College of Pharmacy, Ningxia Medical University, Yinchuan 750004, Ningxia Hui Autonomous Region, China
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12
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Wang L, Qian X, Gao YB, Zhang H, Liu KC, Chen GQ, Li ZX. [Optimizing Straw Management to Enhance Carbon and Nitrogen Efficiency and Economic Benefit of Wheat-Maize Double Cropping System]. Huan Jing Ke Xue 2023; 44:463-472. [PMID: 36635834 DOI: 10.13227/j.hjkx.202203005] [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: 01/14/2023]
Abstract
The optimization of annual straw management can improve the yield, income, and carbon and nitrogen efficiency of wheat-maize double cropping systems. Based on a long-term positioning trial started in 2012, five straw management methods were considered, C100 (100% return), C75 (75% return+25% harvest), C50 (50% return+50% harvest), C25 (25% return+75% harvest), and C0 (100% harvest). We analyzed the effects of farmland carbon and nitrogen inputs and their ratios on crop yield, carbon and nitrogen use efficiency, and economic benefits in wheat and maize anniversaries with different straw managements. The results showed that: ① the amount of straw returning to the field resulted in a significant difference in carbon and nitrogen input. The annual carbon and nitrogen inputs from crop residues decreased by 1.76 t·hm-2 and 34.28 kg·hm-2, respectively, with a 25% reduction in straw returning. The C/N ratios under the C100-C0 treatment were 18.62, 17.03, 15.64, 12.54, and 9.61, respectively. ② Grain yield first increased and then decreased with the decrease in the C/N input ratio, and the effect of straw management on wheat yield was greater than that on maize. Compared with that under C100 and C0, the average grain yield of wheat and maize under the C50 treatment increased by 13.34%-13.67% and 16.10%-17.71%, respectively, and the total grain yield of wheat and maize increased by 14.98% and 15.68%. ③ The annual grain yield and carbon agronomy efficiency were the best with the C/N input ratio of 15.64 (in the C50 treatment), which were 15.71% and 0.29 kg·kg-1, respectively. The carbon production efficiency continued to increase with the decrease in the C/N input ratio, and there was a significant negative correlation between them. The nitrogen production efficiency increased first and then decreased with the decrease in the C/N input ratio. The nitrogen production efficiency of the C50 treatment was the highest (0.64 kg·kg-1), which was significantly higher than that of C100 by 32.63%. ④ The C50 treatment had the highest economic income and net income, which were 46200 yuan·hm-2 and 33400 yuan·hm-2, respectively. Compared with that of C100, the economic income of grain and straw feed increased by 5600 yuan·hm-2 and 3200 yuan·hm-2, respectively. In conclusion, the optimal C/N input ratio can be achieved by optimized straw management; 50% straw returning and 50% harvest in a wheat-maize double-cropping intensive production system can promote carbon agricultural efficiency and nitrogen production efficiency and obtain the maximum grain yield and economic benefits.
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Affiliation(s)
- Liang Wang
- National Engineering Research Center for Wheat and Maize, Shandong Academy of Agricultural Sciences, Jinan 250100, China
| | - Xin Qian
- National Engineering Research Center for Wheat and Maize, Shandong Academy of Agricultural Sciences, Jinan 250100, China
| | - Ying-Bo Gao
- National Engineering Research Center for Wheat and Maize, Shandong Academy of Agricultural Sciences, Jinan 250100, China
| | - Hui Zhang
- National Engineering Research Center for Wheat and Maize, Shandong Academy of Agricultural Sciences, Jinan 250100, China
| | - Kai-Chang Liu
- National Engineering Research Center for Wheat and Maize, Shandong Academy of Agricultural Sciences, Jinan 250100, China
| | - Guo-Qing Chen
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an 271018, China
| | - Zong-Xin Li
- National Engineering Research Center for Wheat and Maize, Shandong Academy of Agricultural Sciences, Jinan 250100, China
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Jian R, Ren Q, Xue J, Xie GC, Wang J, Chen GQ, Du L, Guo WP. Genetic diversity of Bartonella infection in residential and field rodents in Hebei, China. Front Microbiol 2022; 13:1039665. [PMID: 36504836 PMCID: PMC9732461 DOI: 10.3389/fmicb.2022.1039665] [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: 09/08/2022] [Accepted: 11/07/2022] [Indexed: 11/27/2022] Open
Abstract
Rodents are the primary natural reservoirs of Bartonella spp., and some of which are zoonotic causative agents. Hence, surveillance of Bartonella sp. infection in rodents is very important for the prevention of human bartonellosis caused by them. In this study, rodents were captured, and their spleen samples were collected for Bartonella sp. DNA detection and identification by amplifying the 16S rRNA, gltA, and ftsz genes using semi-nested polymerase chain reaction (PCR). The results indicated that Bartonella sp. DNA was detected in seven Rattus norvegicus individuals with a detection rate of 6.7% in Chengde City and bacterial DNA in 31 Apodemus agrarius individuals with a detection rate of 28.4% in Handan City. The DNA detection rate across the genders and ages of rodents was not found to be statistically significant. Furthermore, sequence analysis of the above-mentioned three genes demonstrated that at least eight Bartonella species were circulating in Hebei Province, of which three, including Bartonella rattimassiliensis, Bartonella grahamii, and Bartonella tribocorum, are human pathogens, thus suggesting the existence of a major public health risk. Overall, these results revealed the detection rate and genetic diversity of Bartonella species infection in rodents in Hebei Province, which could be potentially helpful for the prevention of bartonellosis caused by rodent-associated Bartonella species. This study highlights the urgent need for the surveillance of Bartonella infections in rodents and ectoparasites that affect both rodents and humans and can cause fever of unknown origin or endocarditis.
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Affiliation(s)
- Rui Jian
- Department of Pathogenic Biology, College of Basic Medicine, Chengde Medical University, Chengde, Hebei, China
| | - Qing Ren
- Department of Pathogenic Biology, College of Basic Medicine, Chengde Medical University, Chengde, Hebei, China
| | - Jing Xue
- Department of Pathogenic Biology, College of Basic Medicine, Chengde Medical University, Chengde, Hebei, China
| | - Guang-Cheng Xie
- Department of Pathogenic Biology, College of Basic Medicine, Chengde Medical University, Chengde, Hebei, China
| | - Jiangli Wang
- Laboratory of Microbiology Detection, Chengde Center for Disease Control and Prevention, Chengde, China
| | - Guo-Qing Chen
- Yancheng Center for Disease Control and Prevention, Yancheng, China
| | - Luanying Du
- Department of Pathogenic Biology, College of Basic Medicine, Chengde Medical University, Chengde, Hebei, China
| | - Wen-Ping Guo
- Department of Pathogenic Biology, College of Basic Medicine, Chengde Medical University, Chengde, Hebei, China,*Correspondence: Wen-Ping Guo,
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Chen SQ, Ge LJ, Chen GQ, He WJ, Guo JJ, Li Y, Shi L, Cheng YL. Identification, diagnosis, and early intervention of children with developmental language disorder in Ningxia. Transl Pediatr 2022; 11:204-211. [PMID: 35282019 PMCID: PMC8905105 DOI: 10.21037/tp-21-601] [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] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Accepted: 02/18/2022] [Indexed: 12/01/2022] Open
Abstract
BACKGROUND It is reported that the incidence of language development disorder in children at the age of 2 is as high as 17.0%. Timely discovery of the high-risk factors of language development disorder in children and early intervention can greatly reduce the incidence of language development disorder and shorten the course and condition of the patients with language development disorder. Therefore, in order to facilitate prompt diagnosis and early interventions for children with language development disorder (DLD) and improve their language ability, this study explored the influence of perinatal factors on the language development of children in Ningxia and identified the unfavorable and favorable factors that influenced language development. METHODS Children diagnosed in the General Hospital of Ningxia Medical University during 2018-2021 who met the screening criteria for DLD and practical pediatric diagnostic criteria for DLD were enrolled in this study. Perinatal factors (gestational age, weight, sex, delivery mode, maternal age, presence of intrauterine infection, asphyxia) were retrospectively analyzed. The perinatal factors affecting language development were assessed using a one-way analysis of variance (ANOVA). RESULTS Among 1,500 children aged 0-3, 240 cases (16.00%) had language delay. Of these, 122 were male and 118 were female. There were 115 cases of comprehension and expression disorder, 30 cases of articulation disorder, and 90 cases of mixed manifestation. And there were 194 cases with definite intrauterine and perinatal high-risk factors or neonatal diseases, accounting for 80.83% of the total number of children with language delay. CONCLUSIONS In Ningxia, factors in the neonatal period are the main cause of DLD, followed by fetal and maternal factors. Ischemic encephalopathy is the most common factor.
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Affiliation(s)
- Shi-Qi Chen
- Department of Pediatrics, the General Hospital of Ningxia Medical University, Yinchuan, China
| | - Li-Juan Ge
- Department of Pediatrics, the General Hospital of Ningxia Medical University, Yinchuan, China
| | - Guo-Qing Chen
- Department of Pediatrics, the General Hospital of Ningxia Medical University, Yinchuan, China
| | - Wen-Juan He
- Department of Pediatrics, the General Hospital of Ningxia Medical University, Yinchuan, China
| | - Juan-Juan Guo
- Department of Pediatrics, the General Hospital of Ningxia Medical University, Yinchuan, China
| | - Yan Li
- Department of Radiology, the General Hospital of Ningxia Medical University, Yinchuan, China
| | - Lin Shi
- Department of Pediatrics, the General Hospital of Ningxia Medical University, Yinchuan, China
| | - Yan-Li Cheng
- Department of Pediatrics, the General Hospital of Ningxia Medical University, Yinchuan, China
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15
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Wang HX, Zhang L, Liang ZT, Nie JH, Wu JJ, Li QQ, Ding RX, Zhang Y, Chen GQ, Wang YC, Wang HG, Huang WJ. Infectivity and antigenicity of pseudoviruses with high-frequency mutations of SARS-CoV-2 identified in Portugal. Arch Virol 2022; 167:459-470. [PMID: 35083576 PMCID: PMC8791682 DOI: 10.1007/s00705-021-05327-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Accepted: 10/27/2021] [Indexed: 11/26/2022]
Abstract
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has had a major impact on global human health. During the spread of SARS-CoV-2, weakened host immunity and the use of vaccines with low efficacy may result in the development of more-virulent strains or strains with resistance to existing vaccines and antibodies. The prevalence of SARS-CoV-2 mutant strains differs between regions, and this variation may have an impact on the effectiveness of vaccines. In this study, an epidemiological investigation of SARS-CoV-2 in Portugal was performed, and the VSV-ΔG-G* pseudovirus system was used to construct 12 spike protein epidemic mutants, D614G, A222V+D614G, B.1.1.7, S477N+D614G, P1162R+D614G+A222V, D839Y+D614G, L176F+D614G, B.1.1.7+L216F, B.1.1.7+M740V, B.1.258, B.1.258+L1063F, and B.1.258+N751Y. The mutant pseudoviruses were used to infect four susceptible cell lines (Huh7, hACE2-293T-293T, Vero, and LLC-MK2) and 14 cell lines overexpressing ACE2 from different species. Mutant strains did not show increased infectivity or cross-species transmission. Neutralization activity against these pseudoviruses was evaluated using mouse serum and 11 monoclonal antibodies. The neutralizing activity of immunized mouse serum was not significantly reduced with the mutant strains, but the mutant strains from Portugal could evade nine of the 11 monoclonal antibodies tested. Neutralization resistance was mainly caused by the mutations S477N, N439K, and N501Y in the spike-receptor binding domain. These findings emphasize the importance of SARS-CoV-2 mutation tracking in different regions for epidemic prevention and control.
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Affiliation(s)
- Hai-Xin Wang
- Department of Pharmaceutical Engineering, College of life science and technology, Dalian University, Dalian, 116622, Liaoning, China
- AIDS Department, Institute of Biological Products, China Food and Drug Testing Institute, Beijing, 102629, China
| | - Li Zhang
- AIDS Department, Institute of Biological Products, China Food and Drug Testing Institute, Beijing, 102629, China
| | - Zi-Teng Liang
- AIDS Department, Institute of Biological Products, China Food and Drug Testing Institute, Beijing, 102629, China
| | - Jian-Hui Nie
- AIDS Department, Institute of Biological Products, China Food and Drug Testing Institute, Beijing, 102629, China
| | - Jia-Jing Wu
- AIDS Department, Institute of Biological Products, China Food and Drug Testing Institute, Beijing, 102629, China
| | - Qian-Qian Li
- AIDS Department, Institute of Biological Products, China Food and Drug Testing Institute, Beijing, 102629, China
| | - Ru-Xia Ding
- AIDS Department, Institute of Biological Products, China Food and Drug Testing Institute, Beijing, 102629, China
| | - Yue Zhang
- AIDS Department, Institute of Biological Products, China Food and Drug Testing Institute, Beijing, 102629, China
| | - Guo-Qing Chen
- AIDS Department, Institute of Biological Products, China Food and Drug Testing Institute, Beijing, 102629, China.
| | - You-Chun Wang
- AIDS Department, Institute of Biological Products, China Food and Drug Testing Institute, Beijing, 102629, China.
| | - Hui-Guo Wang
- Department of Pharmaceutical Engineering, College of life science and technology, Dalian University, Dalian, 116622, Liaoning, China.
| | - Wei-Jin Huang
- AIDS Department, Institute of Biological Products, China Food and Drug Testing Institute, Beijing, 102629, China.
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Gong RH, Yang DJ, Kwan HY, Lyu AP, Chen GQ, Bian ZX. Cell death mechanisms induced by synergistic effects of halofuginone and artemisinin in colorectal cancer cells. Int J Med Sci 2022; 19:175-185. [PMID: 34975311 PMCID: PMC8692125 DOI: 10.7150/ijms.66737] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Accepted: 11/16/2021] [Indexed: 12/11/2022] Open
Abstract
Our previous study found that the combination of halofuginone (HF) and artemisinin (ATS) synergistically arrest colorectal cancer (CRC) cells at the G1/G0 phase of the cell cycle; however, it remains unclear whether HF-ATS induces cell death. Here we report that HF-ATS synergistically induced caspase-dependent apoptosis in CRC cells. Specifically, both in vitro and in vivo experiments showed that HF or HF-ATS induces apoptosis via activation of caspase-9 and caspase-8 while only caspase-9 is involved in ATS-induced apoptosis. Furthermore, we found HF or HF-ATS induces autophagy; ATS can't induce autophagy until caspase-9 is blocked. Further analyzing the crosstalk between autophagic and caspase activation in CRC cells, we found autophagy is essential for activation of caspase-8, and ATS switches to activate capase-8 via induction of autophagy when caspase-9 is inhibited. When apoptosis is totally blocked, HF-ATS switches to induce autophagic cell death. This scenario was then confirmed in studies of chemoresistance CRC cells with defective apoptosis. Our results indicate that HF-ATS induces cell death via interaction between apoptosis and autophagy in CRC cells. These results highlight the value of continued investigation into the potential use of this combination in cancer therapy.
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Affiliation(s)
- Rui-Hong Gong
- Centre for Cancer and Inflammation Research (CCIR), School of Chinese Medicine, Hong Kong Baptist University, Kowloon Tong, Hong Kong S.A.R., China
| | - Da-Jian Yang
- Chongqing Academy of Chinese Materia Medica, Chongqing 400065, China
| | - Hiu-Yee Kwan
- Centre for Cancer and Inflammation Research (CCIR), School of Chinese Medicine, Hong Kong Baptist University, Kowloon Tong, Hong Kong S.A.R., China
| | - Ai-Ping Lyu
- Centre for Cancer and Inflammation Research (CCIR), School of Chinese Medicine, Hong Kong Baptist University, Kowloon Tong, Hong Kong S.A.R., China
| | - Guo-Qing Chen
- State Key Laboratory of Chinese Medicine and Molecular Pharmacology (Incubation), Shenzhen Research Institute, The Hong Kong Polytechnic University, Shenzhen 518057, China
- Research Centre for Chinese Medicine Innovation, The Hong Kong Polytechnic University, Hung Hom, Hong Kong S.A.R., China
- Department of Applied Biology & Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Hong Kong S.A.R., China
| | - Zhao-Xiang Bian
- Centre for Cancer and Inflammation Research (CCIR), School of Chinese Medicine, Hong Kong Baptist University, Kowloon Tong, Hong Kong S.A.R., China
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Chen G, Chen L, Huang Y, Zhu X, Yu Y. Increased FUN14 domain containing 1 (FUNDC1) ubiquitination level inhibits mitophagy and alleviates the injury in hypoxia-induced trophoblast cells. Bioengineered 2021; 13:3620-3633. [PMID: 34699308 PMCID: PMC8974051 DOI: 10.1080/21655979.2021.1997132] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
Preeclampsia (PE) is a pregnancy disorder characterized by excessive trophoblast cell death. This study aims to explore the exact mechanism of the ubiquitination level of FUN14 domain containing 1 (FUNDC1) in mitophagy and injury in hypoxic trophoblast cells. In this study, HTR-8/SVneo trophoblast cells were cultured under normoxic and hypoxic conditions and PE mouse model was established. We found low ubiquitination level of FUNDC1 in hypoxic trophoblast cells and placenta of pregnant women with PE. Proteasome inhibitor MG-132 and protease activator MF-094 were added into HTR-8/SVneo trophoblast cells. Proteasome inhibitor MG-132 decreased FUNDC1 ubiquitination level while protease activator MF-094 increased FUNDC1 ubiquitination level. Inhibition of FUNDC1 ubiquitination promoted mitophagy and mitochondrial membrane potential (Δψm) in normoxic trophoblast cells, increased levels of reactive oxygen species (ROS) and malondialdehyde (MDA) and decreased levels of glutathione (GSH) and superoxide dismutase (SOD). In addition, FUNDC1 ubiquitination alleviated cell injury in PE mice in vivo. In conclusion, increased FUNDC1 ubiquitination level inhibited mitophagy and Δψm changes in hypoxic trophoblast cells, and thus alleviated oxidative injury.
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Affiliation(s)
- GuoQing Chen
- Department of Obstetrics, Shenzhen Maternity & Child Healthcare Hospital, The First School of Clinical Medicine, Southern Medical University, Shenzhen, Guangdong 518028; China
| | - Lu Chen
- Department of Obstetrics, Shenzhen Maternity & Child Healthcare Hospital, The First School of Clinical Medicine, Southern Medical University, Shenzhen, Guangdong 518028; China
| | - Yan Huang
- Department of Obstetrics, Shenzhen Maternity & Child Healthcare Hospital, The First School of Clinical Medicine, Southern Medical University, Shenzhen, Guangdong 518028; China
| | - XiongShan Zhu
- Department of Obstetrics, Shenzhen Maternity & Child Healthcare Hospital, The First School of Clinical Medicine, Southern Medical University, Shenzhen, Guangdong 518028; China
| | - YuanLan Yu
- Department of Emergency, Shenzhen Children's Hospital, Shenzhen, Guangdong 518026, China
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Guennec A, Brelle L, Balnois E, Linossier I, Renard E, Langlois V, Faÿ F, Chen GQ, Simon-Colin C, Vallée-Réhel K. Antifouling properties of amphiphilic poly(3-hydroxyalkanoate): an environmentally-friendly coating. Biofouling 2021; 37:894-910. [PMID: 34579623 DOI: 10.1080/08927014.2021.1981298] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [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: 04/07/2021] [Revised: 09/06/2021] [Accepted: 09/11/2021] [Indexed: 06/13/2023]
Abstract
The development of biofouling is a major problem for marine industries. The conception of antifouling and fouling release coatings, with controlled physical-chemical properties is a promising strategy. Among them, amphiphilic systems, such as those composed of a hydrophobic polydimethylsiloxane matrix and a hydrophilic polyethyleneglycol additive are the most efficient and up to date. Despite their effectiveness, these systems are questioned due to the petrochemical origin of PDMS. The aim of this project was to substitute the PDMS matrix with a biopolymer, poly(3-hydroxybuyrate-co-3-hydroxyvalerate) and to improve its anti-adhesion properties through the elaboration of an amphiphilic system, via the addition of PEG or PHBHHx-b-PEG copolymer. The results, including the physico-chemical properties of PHBHV based coatings and static adhesion tests on a marine bacterium, Bacillus 4J6 and a diatom, Phaeodactylum tricornutum are compared with those of PDMS and PEG-modified PDMS coatings. Real antiadhesion activity was obtained for the PHBHV/PHBHHx-b-PEG system for a promising eco-friendly strategy.
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Affiliation(s)
- A Guennec
- Laboratoire de Biotechnologie et de Chimie Marines, EA 3884, Université Bretagne Sud, Lorient Cedex, France
| | - L Brelle
- CNRS, ICMPE, UMR 7182, Université Paris Est Créteil, Thiais, France
| | - E Balnois
- Laboratoire de Biotechnologie et de Chimie Marines, EA 3884, Université de Brest, Quimper, France
| | - I Linossier
- Laboratoire de Biotechnologie et de Chimie Marines, EA 3884, Université Bretagne Sud, Lorient Cedex, France
| | - E Renard
- CNRS, ICMPE, UMR 7182, Université Paris Est Créteil, Thiais, France
| | - V Langlois
- CNRS, ICMPE, UMR 7182, Université Paris Est Créteil, Thiais, France
| | - F Faÿ
- Laboratoire de Biotechnologie et de Chimie Marines, EA 3884, Université Bretagne Sud, Lorient Cedex, France
| | - G Q Chen
- Center of Synthetic and Systems Biology, School of Life Science, Tsinghua-Peking Center for Life Sciences, Tsinghua University, Beijing, China
| | - C Simon-Colin
- LM2E, CNRS, IFREMER, Université de Brest, Plouzané, France
| | - K Vallée-Réhel
- Laboratoire de Biotechnologie et de Chimie Marines, EA 3884, Université Bretagne Sud, Lorient Cedex, France
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Zhang HJ, Su YY, Xu SL, Chen GQ, Li CC, Jiang RJ, Liu RH, Ge SX, Zhang J, Xia NS, Quan T. Asymptomatic and Symptomatic Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) Infections in Close Contacts of Coronavirus Disease 2019 (COVID-19) Patients: A Seroepidemiological Study. Clin Infect Dis 2021; 73:553-554. [PMID: 32544949 PMCID: PMC7337633 DOI: 10.1093/cid/ciaa771] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Hong-Jun Zhang
- Department of Acute Infectious Disease Prevention and Control, Yancheng Center for Disease Control and Prevention, Yancheng, Jiangsu, China
| | - Ying-Ying Su
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, National Institute of Diagnostics and Vaccine Development in Infectious Diseases, Collaborative Innovation Center of Biologic Products, School of Public Health, Xiamen University, Xiamen, Fujian, China
| | - Shi-Lin Xu
- Department of Acute Infectious Disease Prevention and Control, Yancheng Center for Disease Control and Prevention, Yancheng, Jiangsu, China
| | - Guo-Qing Chen
- Department of Acute Infectious Disease Prevention and Control, Yancheng Center for Disease Control and Prevention, Yancheng, Jiangsu, China
| | - Chang-Cheng Li
- Department of Acute Infectious Disease Prevention and Control, Yancheng Center for Disease Control and Prevention, Yancheng, Jiangsu, China
| | - Ren-Jie Jiang
- Department of Acute Infectious Disease Prevention and Control, Yancheng Center for Disease Control and Prevention, Yancheng, Jiangsu, China
| | - Rong-Hai Liu
- Department of Acute Infectious Disease Prevention and Control, Yancheng Center for Disease Control and Prevention, Yancheng, Jiangsu, China
| | - Sheng-Xiang Ge
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, National Institute of Diagnostics and Vaccine Development in Infectious Diseases, Collaborative Innovation Center of Biologic Products, School of Public Health, Xiamen University, Xiamen, Fujian, China
| | - Jun Zhang
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, National Institute of Diagnostics and Vaccine Development in Infectious Diseases, Collaborative Innovation Center of Biologic Products, School of Public Health, Xiamen University, Xiamen, Fujian, China
| | - Ning-Shao Xia
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, National Institute of Diagnostics and Vaccine Development in Infectious Diseases, Collaborative Innovation Center of Biologic Products, School of Public Health, Xiamen University, Xiamen, Fujian, China
| | - Tang Quan
- Department of Acute Infectious Disease Prevention and Control, Yancheng Center for Disease Control and Prevention, Yancheng, Jiangsu, China
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20
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Chen GQ, Li P, Yan Q, Wu YH, Wang HR, Chao SF, Wu LJ, Chen L, Feng GZ. Identification of Spodoptera frugiperda importin alphas that facilitate the nuclear import of Autographa californica multiple nucleopolyhedrovirus DNA polymerase. Insect Mol Biol 2021; 30:400-409. [PMID: 33837597 DOI: 10.1111/imb.12704] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Revised: 03/30/2021] [Accepted: 04/06/2021] [Indexed: 06/12/2023]
Abstract
Proteins containing nuclear localization signals (NLSs) are actively transported into the nucleus via the classic importin-α/β-mediated pathway, and NLSs are recognized by members of the importin-α family. Most studies of insect importin-αs have focused on Drosophila to date, little is known about the importin-α proteins in Lepidoptera insects. In this study, we identified four putative importin-α homologues, Spodoptera frugiperda importin-α1 (SfIMA1), SfIMA2, SfIMA4 and SfIMA7, from Sf9 cells. Immunofluorescence analysis showed that SfIMA2, SfIMA4 and SfIMA7 localized to the nucleus, while SfIMA1 distributed in cytoplasm. Additionally, SfIMA4 and SfIMA7 were also detected in the nuclear membrane of Sf9 cells. SfIMA1, SfIMA4 and SfIMA7, but not SfIMA2, were found to associate with the C terminus of AcMNPV DNA polymerase (DNApol) that harbours a typical monopartite NLS and a classic bipartite NLS. Further analysis of protein-protein interactions revealed that SfIMA1 specifically recognizes the bipartite NLS, while SfIMA4 and SfIMA7 bind to both monopartite and bipartite NLSs. Together, our results suggested that SfIMA1, SfIMA4 and SfIMA7 play important roles in the nuclear import of AcMNPV DNApol C terminus in Sf9 cells.
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Affiliation(s)
- Guo-Qing Chen
- State Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou, China
| | - Pei Li
- State Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou, China
- College of Agriculture, Yangtze University, Jingzhou, Hubei, China
| | - Qing Yan
- State Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou, China
| | - Yi-Hong Wu
- State Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou, China
- College of Agriculture, Yangtze University, Jingzhou, Hubei, China
| | - Hao-Ran Wang
- State Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou, China
| | - Shu-Fen Chao
- State Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou, China
| | - Li-Juan Wu
- State Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou, China
| | - Long Chen
- State Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou, China
| | - Guo-Zhong Feng
- State Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou, China
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21
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Chen GQ, Wei K, Hassanvand A, Freeman BD, Kentish SE. Erratum to 'Single and binary ion sorption equilibria of monovalent and divalent ions in commercial ion exchange membranes' [Water Research 175 (2020) 115681]. Water Res 2021; 196:117110. [PMID: 33838786 DOI: 10.1016/j.watres.2021.117110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Affiliation(s)
- G Q Chen
- Department of Chemical Engineering, The University of Melbourne, Victoria 3010, Australia
| | - K Wei
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, P. R. China
| | - A Hassanvand
- Department of Chemical Engineering, The University of Melbourne, Victoria 3010, Australia
| | - B D Freeman
- McKetta Department of Chemical Engineering, The University of Texas at Austin, 200 E, Dean Keeton St., Stop C0400, Austin, Texas 78712-1589, United States
| | - S E Kentish
- Department of Chemical Engineering, The University of Melbourne, Victoria 3010, Australia.
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22
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Lin T, Yang Y, Lin J, Zhang J, Wen Q, He X, Chen G. A Comparative Study of Macular and Choroidal Thickness and Blood-Flow Parameters in Patients with Intermediate and Simple Juvenile Moderate Myopia. Int J Gen Med 2021; 14:1343-1348. [PMID: 33889014 PMCID: PMC8057794 DOI: 10.2147/ijgm.s301702] [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] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Accepted: 03/12/2021] [Indexed: 11/23/2022] Open
Abstract
Objective This study aimed to compare the macular and choroidal thicknesses and blood-flow parameters of patients with intermediate and simple juvenile moderate myopia in order to provide a greater understanding of the pathogenesis of myopia and a basis for its prevention. Methods Participants were selected from patients under the age of 18 with moderate myopia who were treated in our ophthalmic clinic between June and December 2019. Seventy-five right eyes were selected from participants with a mean spherical equivalent ranging from -6.0 to -3.0 D. These samples were divided into two groups based on eye axial length (AL). The thicknesses of the macula and choroid, the area of the foveal avascular zone (FAZ), and the blood flow density of the macular capillaries were measured, intergroup comparison was conducted. Results The average area of the FAZ was larger in the intermediate group than in the simple group. PERIM in the upper half was lower in the intermediate group than in the simple group, and the blood-flow density in the lower half of the macular area was higher in the simple group than in the intermediate group. The blood-flow density within 1 mm of the fovea centralis and the downward blood-flow density were higher in the intermediate group than in the simple group. The thicknesses of the lower part of the FAZ, the choroid of the fovea centralis, and the choroid under the retina were all larger in the intermediate group than in the simple group. Conclusion The area of the FAZ in patients with intermediate juvenile moderate myopia is larger than that in patients with simple myopia; the choroid in the fovea of macula compensatorily increases, and blood flow density also increases; the thickness of the choroid under the retina increases with myopia.
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Affiliation(s)
- TaiNan Lin
- Department of Ophthalmology, Fujian Provincial Governmental Hospital, Fuzhou, 350003, People's Republic of China
| | - Yan Yang
- Fujian Center for Disease Control and Prevention, Fuzhou, 350001, People's Republic of China
| | - JinHua Lin
- Department of Ophthalmology, Fujian Provincial Governmental Hospital, Fuzhou, 350003, People's Republic of China
| | - JiHui Zhang
- Department of Ophthalmology, Fujian Provincial Governmental Hospital, Fuzhou, 350003, People's Republic of China
| | - Qian Wen
- Department of Ophthalmology, Fujian Provincial Governmental Hospital, Fuzhou, 350003, People's Republic of China
| | - XiaoLu He
- Department of Ophthalmology, Fujian Provincial Governmental Hospital, Fuzhou, 350003, People's Republic of China
| | - GuoQing Chen
- Department of Ophthalmology, Fujian Provincial Governmental Hospital, Fuzhou, 350003, People's Republic of China
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Wang WL, Luo XM, Zhang Q, Zhu HQ, Chen GQ, Zhou Q. The lncRNA PVT1/miR-590-5p/FSTL1 axis modulates the proliferation and migration of airway smooth muscle cells in asthma. Autoimmunity 2021; 54:138-147. [PMID: 33825599 DOI: 10.1080/08916934.2021.1897977] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
OBJECTIVE Asthma is a prevalent chronic inflammatory airway disease that is characterised by airway remodelling and airway hyperresponsiveness. Abnormal proliferation and migration of airway smooth muscle cells (ASMCs) contribute to airway remodelling in asthma. However, the molecular mechanism underlying an increased ASMC mass in asthma remains elusive. Herein, we aimed at investigating the regulation of lncRNA PVT1 on ASMCs and focussing on the mechanism in the proliferation and migration. METHODS Expression levels of lncRNA PVT1 and miR-590-5p in the serum collected from 24 children with asthma and 10 control children were determined by qRT-PCR. ASMCs proliferation and migration prior to and post platelet-derived growth factor subunit B (PDGF-BB) stimulation were examined by CCK-8 test and transwell assay. Dual-luciferase reporter assay was performed to determine miR-590-5p interaction with lncRNA PVT1 and follistatin-like 1 (FSTL1). Expression of lncRNA PVT1, miR-590-5p, FSTL1, C-Myc, cyclin D1, and cyclin-dependent kinase 1 (CDK1) was tested by quantitative real-time PCR (qRT-PCR) and immunoblotting analysis. RESULTS The expression level of lncRNA PVT1 was higher but the expression level of miR-590-5p was lower in the serum of children with asthma than in control children. The expression level of lncRNA PVT1 was negatively correlated with the expression level of miR-590-5p in asthma. LncRNA PVT1 was upregulated upon PDGF-BB stimulation. LncRNA PVT1 knockdown by its specific shRNA repressed PDGF-BB-induced promotion of proliferation and migration in ASMCs and triggered an elevated miR-590-5p along with declined C-Myc, cyclin D1, and CDK1. The effects of lncRNA PVT1 knockdown on PDGF-BB-induced ASMCs were lost upon miR-590-5p inhibition. MiR-590-5p targeted FSTL1 gene and declined its expression, thus suppressing ASMC proliferation and migration following PDGF-BB stimulation and downregulating C-Myc, cyclin D1, and CDK1 expressions. The effects of miR-590-5p on PDGF-BB-induced ASMCs were lost upon FSTL1 overexpression. CONCLUSION These results support the notion that the lncRNA PVT1/miR-590-5p/FSTL1 axis modulates ASMCs proliferation and migration following PDGF-BB stimulation, providing a potential therapeutic target to attenuate airway remodelling in asthma.
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Affiliation(s)
- Wen-Lan Wang
- Department of Pediatrics, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, P.R. China
| | - Xiao-Ming Luo
- Department of Pediatrics, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, P.R. China
| | - Qin Zhang
- Department of Pediatrics, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, P.R. China
| | - Hai-Qiao Zhu
- Department of Pediatrics, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, P.R. China
| | - Guo-Qing Chen
- Department of Pediatrics, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, P.R. China
| | - Qin Zhou
- Department of Pediatrics, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, P.R. China
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Wang T, Wang SK, Chen GQ, Tian WD. [A Novel Chemically Defined Medium Enhanced the Osteogenic Potential and Periodontal Bone Regeneration of Dental Papilla Cells]. Sichuan Da Xue Xue Bao Yi Xue Ban 2020; 51:735-741. [PMID: 33236593 DOI: 10.12182/20201160101] [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: 02/05/2023]
Abstract
Obejective To investigate the role of a novel chemically defined medium (CDM) in the regulation of dental papilla cells (DPCs) functional phenotype in vitro and periodontal bone regeneration in vivo. Methods DPCs were isolated and cultured in conventional medium (CM) or CDM. The surface makers, and the proliferation, migration and osteogenic differentiation abilities of DPCs were evaluated. In vivo, the DPCs that mixed with collagen gel were implanted into the model rats in the defect of periodontal to repair the periodontal tissue. Regeneration of the tissues was examined by microcomputed tomography and histological observation. Results DPCs in the CM group and CDM group showed similar surface markers. Compared to the CM group, the CDM significantly enhanced the proliferation, colony-forming efficiency and migration of DPCs in vitro. In addition, real time PCR showed that the expression levels of osteogenesis-related genes, Runx2, Alp and Opn. were significantly enhanced in DPCs in the CDM group. DPCs cells treated with CDM also exhibited higher alkaline phosphatase activity and stronger ability of formation of mineralized nodules in vitro. In vivo, DPCs from CDM group significantly enhanced the periodontal bone regeneration and the reconstruction of periodontal bone tissues in rat periodontal defect model. Conclusion CDM is a suitable medium to culture DPCs for periodontal bone regeneration. This research provided a substitute for basic research and set the stage for future clinical application of stem cell transplantation.
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Affiliation(s)
- Tao Wang
- State Key Laboratory of Oral Disease, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China.,Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China.,National Engineering Laboratory for Oral Regenerative Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Shi-Kai Wang
- State Key Laboratory of Oral Disease, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China.,Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China.,National Engineering Laboratory for Oral Regenerative Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Guo-Qing Chen
- National Engineering Laboratory for Oral Regenerative Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Wei-Dong Tian
- State Key Laboratory of Oral Disease, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China.,Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China.,National Engineering Laboratory for Oral Regenerative Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
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Heng HY, Ding X, Chen H, Dai XX, Wu YY, Fan GH, Chen GQ, Zeng MS, Shen JK. [The value of 3.0T magnetic resonance -diffusion kurtosis imaging in the differential diagnosis of rectal mucinous adenocarcinoma and common adenocarcinoma]. Zhonghua Yi Xue Za Zhi 2020; 100:2919-2923. [PMID: 32993251 DOI: 10.3760/cma.j.cn112137-20200117-00120] [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 value of 3.0T MRI diffusion kurtosis imaging (DKI) quantitative histogram parameters in the differential diagnosis of rectal mucinous adenocarcinoma (MC) and common adenocarcinoma (AC). Methods: One hundred and ten patients from Department of Radiology, the Second Affiliated Hospital of Soochow University between September 2015 and September 2019 with complete magnetic resonance imaging (MRI) and DKI results confirmed by surgery and pathology were retrospectively analyzed, including 16 patients in MC group and 94 patients in AC group. Two physicians outlined the region of interest (ROI) on the DKI image with b=1 000 s/mm(2), and obtained quantitative DKI parameters, including the diffusion coefficient (D value) and kurtosis coefficient (K value) corrected for non-Gaussian distribution. The apparent diffusion coefficient (ADC) values of quantitative parameters of diffusion-weighted imaging (DWI) were obtained through image registration, and histogram analysis was performed to obtain the mean value, 25th percentile, 50th percentile, 75th percentile, skewness and kurtosis of the above parameters, respectively. The difference between the quantitative histogram parameter analysis results of the rectal MC group and the AC group was evaluated, and the main indicators and multivariate comprehensive analysis indicators was screened, and the effectiveness of quantitative histogram parameters related to histopathological classification in the differential diagnosis of rectal MC and AC was evaluated. Results: There was no significant differences in gender, age, lesion location, T stage or N stage between MC group and AC group (all P>0.05). The multivariate binary logistic stepwise regression screening showed that D50th percentile and K25th percentile are statistically significant indicators (B values were 2 966.166 and -4.550, respectively; Wals values were 9.000 and 15.720, respectively; and P values were 0.003 and <0.001, respectively). The combined area under the curve of the two indictors was 0.85, but there was no statistically significant difference in pairwise comparison using DeLong method (P>0.05). The results of histogram analysis of quantitative parameters measured by the two physicians were consistent, and the inter-group correlation coefficient ranged from 0.880 to 0.981. Conclusions: The quantitative parameter histogram analysis of the DKI double-index model is helpful for the differentiation of rectal MC and AC, in which the D50th percentile and K25th percentile have differential diagnosis significance, and are superior to the ADC value of the single-index model.
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Affiliation(s)
- H Y Heng
- Department of Radiology, the Second Affiliated Hospital of Soochow University, Suzhou 215000, China (now works in Department of Radiology, Wuxi 9th People's Hospital (Wuxi Orthopedic Hospital))
| | - X Ding
- Department of Radiology, the Second Affiliated Hospital of Soochow University, Suzhou 215000, China
| | - H Chen
- Department of Radiology, the Second Affiliated Hospital of Soochow University, Suzhou 215000, China
| | - X X Dai
- Department of Pathology, the Second Affiliated Hospital of Soochow University, Suzhou 215000, China
| | - Y Y Wu
- Department of General Surgery, the Second Affiliated Hospital of Soochow University, Suzhou 215000, China
| | - G H Fan
- Department of Radiology, the Second Affiliated Hospital of Soochow University, Suzhou 215000, China
| | - G Q Chen
- Department of Radiology, the Second Affiliated Hospital of Soochow University, Suzhou 215000, China
| | - M S Zeng
- Department of Radiology, the Affiliated Zhongshan Hospital of Fudan University, Shanghai 200032, China
| | - J K Shen
- Department of Radiology, the Second Affiliated Hospital of Soochow University, Suzhou 215000, China
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Guo WP, Chen GQ, Xie GC, Du LY, Tang Q. Mosaic genome of Human Coxsackievirus A4 associated with herpangina and HFMD in Yancheng, China, 2016 and 2018. Int J Infect Dis 2020; 96:538-540. [PMID: 32439540 DOI: 10.1016/j.ijid.2020.05.057] [Citation(s) in RCA: 4] [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: 02/29/2020] [Revised: 05/12/2020] [Accepted: 05/14/2020] [Indexed: 01/15/2023] Open
Abstract
OBJECTIVES To better understand the spectrums of pathogens causing herpangina and circulation of Coxsackievirus A4 in Yancheng, China. METHODS Stool samples from herpangina and HFMD cases were collected. Real Time PCR Kits was used to identify Enterovirus 71, CV-A16 and CV-A6, and nested reverse transcription PCR (nRT-PCR) to detect the other enterovirus types. Complete VP1 and genome sequence of CV-A4 were amplified by using nRT-PCR. Genetic, phylogenetic and recombination analysis were performed. RESULTS Co-circulation of three recombinant CV-A4 groups, including one novel (C2 lineage), was identified in Yancheng, China, 2016 and 2018. One was the major causative agent of herpangina, and another two were responsible for HFMD. Phylogenetic and recombination analysis indicated that the non-structural region of their genome originated from the same ancestry and subsequently adaptation. C2 lineage of CV-A4 group may be introduced from countries outside China and its genome occurred recombination in China. CONCLUSION Novel recombinant CV-A4 was mainly associated with herpanginain in Yancheng, 2018, China. C2 lineage of CV-A4 group with recombinant non-structural region was also identified in HFMD patients.
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Affiliation(s)
- Wen-Ping Guo
- Department of Pathogenic Biology, College of Basic Medicine, Chengde Medical University, Chengde, Hebei, China.
| | - Guo-Qing Chen
- Yancheng Center for Disease Control and Prevention, Yancheng, Jiangsu, China.
| | - Guang-Cheng Xie
- Department of Pathogenic Biology, College of Basic Medicine, Chengde Medical University, Chengde, Hebei, China.
| | - Luan-Ying Du
- Department of Pathogenic Biology, College of Basic Medicine, Chengde Medical University, Chengde, Hebei, China.
| | - Quan Tang
- Yancheng Center for Disease Control and Prevention, Yancheng, Jiangsu, China.
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27
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Chen GQ, Wei K, Hassanvand A, Freeman BD, Kentish SE. Single and binary ion sorption equilibria of monovalent and divalent ions in commercial ion exchange membranes. Water Res 2020; 175:115681. [PMID: 32171098 DOI: 10.1016/j.watres.2020.115681] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2019] [Revised: 02/27/2020] [Accepted: 03/01/2020] [Indexed: 06/10/2023]
Abstract
The co-ion and counter-ion sorption of monovalent (Na+, K+, Cl- and NO3-) and divalent ions (Ca2+ and SO42-) in commercial Neosepta ion exchange membranes were systemically studied in both single and binary salt systems. The new generation of Neosepta cation exchange membrane (CSE) showed a significant difference in water uptake and co-ion sorption compared to the earlier generation (CMX). Use of the Manning model confirmed that there were significant differences between these membranes, with the estimated value of the Manning parameter changing from 1.0 ± 0.1 for CMX to 2.8 ± 0.5 for CSE. There were fewer differences between the two Neosepta anion exchange membranes, AMX and ASE. In single salt solutions, potassium sorbed most strongly into the cation exchange membranes, but in binary salt mixtures, calcium dominated due to Donnan exclusion at low concentrations. While these trends were expected, the sorption behaviour in the anion exchange membranes was more complex. The water uptake of both AMX and ASE was shown to be the greatest in Na2SO4 solutions. This strong water uptake was reflected in strong sorption of sulphate ions in a single salt solution. Conversely, in a binary salt mixture with NaCl, sulphate sorption fell significantly at higher concentrations. This was possibly caused by ion pairing within the solution, as well as the strongly hydrophobic nature of styrene in the charged polymer. Water uptake was lowest in NaNO3 solutions, even though sorption of the nitrate ion was comparable to that of chloride in these single salt solutions. In the binary mixture, nitrate was absorbed more strongly than chloride. These results could be due to the low surface charge density of this ion allowing it to bond more strongly with the hydrophobic polymeric backbone at the exclusion of water and other ions.
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Affiliation(s)
- G Q Chen
- Department of Chemical Engineering, The University of Melbourne, Victoria, 3010, Australia
| | - K Wei
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing, 100084, PR China
| | - A Hassanvand
- Department of Chemical Engineering, The University of Melbourne, Victoria, 3010, Australia
| | - B D Freeman
- McKetta Department of Chemical Engineering, The University of Texas at Austin, 200 E, Dean Keeton St., Stop C0400, Austin, TX, 78712-1589, United States
| | - S E Kentish
- Department of Chemical Engineering, The University of Melbourne, Victoria, 3010, Australia.
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Liu RR, Zhu Y, Wu MY, Liu J, Ren R, Cao QL, Shen XH, Chen GQ, Li M. [CT imaging analysis of 33 cases with the 2019 novel coronavirus infection]. Zhonghua Yi Xue Za Zhi 2020; 100:1007-1011. [PMID: 32294858 DOI: 10.3760/cma.j.cn112137-20200203-00182] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore the CT imaging features of the 2019 novel coronavirus (2019-nCoV) infection in order to summarize the imaging characteristics of the disease and improve the ability of imaging diagnosis and early diagnosis of the disease. Methods: From January 13, 2020 to January 31, 2020, a total of 33 patients with 2019-nCoV infection diagnosed and treated by Suzhou Fifth People's Hospital were analyzed retrospectively, including 20 males and 13 females, with an average age of (50±12) years, ranging from 20 to 70 years old. There were 3 cases of mild type, 27 cases of common type and 3 cases of severe type.There were 2 cases with hypertension, 1 case with postoperative lung,1 case with diabetes, 1 case with chronic bronchitis, and 1 case with bronchiectasis.SPSS25.0 Chi-square test was used to analyze the distribution of lesions in each lung lobe; SPSS25.0 Spearman correlation coefficient was used to analyze the image score and clinical classification. Results: There were 3 cases (9.1%) with normal lung and 30 cases (90.9%) with Novel Coronavirus Pneumonia(COVID-19) of the 2019-nCoV infected patients. In the distribution of COVID-19, 29 cases (87.9%) were involved in bilateral lung and 1 case (3.0%) in unilateral lung. There was no statistically significant difference in the distribution of lesions in each lobe. The correlation coefficient between the degree of lesion distribution and clinical classification was 0.819, and the two were highly correlated.There were 30 cases (90.9%) with subpleural lesions, 17 cases (51.5%) with central lesions. There were many kinds of lesions, 25 cases (75.8%) had ground glass density shadow, 16 cases (48.5%) had consolidation, 12 cases (36.4%) had interstitial change, and 18 cases (54.5%) had interlobular septal thickening. Among the 22 cases, 10 cases had more lesions, 6 cases had no changes and 6 cases had less lesions. Conclusion: Most of the patients with 2019-nCoV infection have pulmonary inflammation.CT manifestations include multiple parts, subpleural area or middle and lateral field of lung, ground glass shadow and consolidation, or coexistence. Some cases have pleural thickening or interlobular septal thickening. CT images can indicate the diagnosis of COVID-19 and provide important basis for early detection and disease monitoring.
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Affiliation(s)
- R R Liu
- Department of Radiology, the Affiliated Infectious Diseases Hospital of Soochow University, the Fifth People's Hospital of Suzhou, Suzhou 215000, China
| | - Y Zhu
- Department of Radiology, the Affiliated Infectious Diseases Hospital of Soochow University, the Fifth People's Hospital of Suzhou, Suzhou 215000, China
| | - M Y Wu
- Department of Radiology, the Affiliated Infectious Diseases Hospital of Soochow University, the Fifth People's Hospital of Suzhou, Suzhou 215000, China
| | - J Liu
- Department of Radiology, the Affiliated Infectious Diseases Hospital of Soochow University, the Fifth People's Hospital of Suzhou, Suzhou 215000, China
| | - R Ren
- Department of Radiology, the Affiliated Infectious Diseases Hospital of Soochow University, the Fifth People's Hospital of Suzhou, Suzhou 215000, China
| | - Q L Cao
- Department of Radiology, the Affiliated Infectious Diseases Hospital of Soochow University, the Fifth People's Hospital of Suzhou, Suzhou 215000, China
| | - X H Shen
- Department of Radiology, the Affiliated Infectious Diseases Hospital of Soochow University, the Fifth People's Hospital of Suzhou, Suzhou 215000, China
| | - G Q Chen
- Department of Radiology, the Second Affiliated Hospital, Soochow University, Suzhou 215000, China
| | - M Li
- Department of Radiology, the Affiliated Infectious Diseases Hospital of Soochow University, the Fifth People's Hospital of Suzhou, Suzhou 215000, China
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Wu XD, Guo JL, Li C, Chen GQ, Ji X. Carbon emissions embodied in the global supply chain: Intermediate and final trade imbalances. Sci Total Environ 2020; 707:134670. [PMID: 31865087 DOI: 10.1016/j.scitotenv.2019.134670] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2019] [Revised: 09/23/2019] [Accepted: 09/25/2019] [Indexed: 06/10/2023]
Abstract
By differentiating intermediate trade from final trade, this paper combines typical statistics for the world economy in 2012 to explore the transfer of embodied carbon emissions via the global supply chain and the related trade imbalance. The emission transfer embodied in interregional trade is in magnitude around 40% of global direct carbon emissions. The global intermediate trade volume of embodied carbon emissions is estimated to be 2.3 times as much as the final trade volume. While Mainland China obtains a considerable economic trade surplus, its carbon trade deficit is about twice the carbon trade surplus of the United States. Mainland China's final trade deficit is around 1.2 times as much as its intermediate trade deficit of embodied carbon emissions. EU27, the United States, ASEAN and Japan serve as the major contributors to China's intermediate and final trade deficits. For the United States, its intermediate carbon trade surplus is almost equal to its final trade surplus. The United States gains a carbon surplus with most of its trading partners in both intermediate and final trades. A future scenario analysis in terms of carbon emission projection is conducted. While the direct and embodied carbon emissions of the United States and Japan are estimated to change slightly from 2012 to 2040, India's carbon emissions are projected to experience a twofold increase during the period. In the long term, though with ups and downs, the economic globalization will be inevitably moving forward, leading to a highly sliced-up global supply chain and increasingly delicate regional specialization as well as frequent intermediate trade between regions. It is suggested that nations and regions should follow this trend and adapt themselves to the global value chain by carefully assessing their roles in intermediate and final trades in terms of both currency and embodied carbon emissions.
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Affiliation(s)
- X D Wu
- School of Economics, Peking University, Beijing 100871, China; Laboratory of Systems Ecology and Sustainability Science, College of Engineering, Peking University, Beijing 100871, China
| | - J L Guo
- Laboratory of Systems Ecology and Sustainability Science, College of Engineering, Peking University, Beijing 100871, China
| | - Chaohui Li
- Yenching Academy, Peking University, Beijing 100871, China
| | - G Q Chen
- Laboratory of Systems Ecology and Sustainability Science, College of Engineering, Peking University, Beijing 100871, China.
| | - Xi Ji
- School of Economics, Peking University, Beijing 100871, China.
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Chen GQ, Wang QM, Yu M, Cheng YD, Zhang ZC, Wang WS, Qiu Y, Sun LH, Peng K, Yang H. Notch signaling is involved in regulation of LPS-induced macrophage apoptosis through JNK/NF-kB signaling pathway. J BIOL REG HOMEOS AG 2020; 34:04. [PMID: 32048500 DOI: 10.23812/19-283-a] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Notch signaling plays a critical role in the development and function of macrophages. The aim of the present study was to investigate the relationship between Notch signaling pathway and macrophage apoptosis after LPS stimulation. In RAW 264.7 cells, the mRNA expression of Jagged1, Hes1, Hes 5 and GM-CSF, and protein expression of NICD1 and GM-CSF were increased after LPS stimulation. Inhibition of Notch signaling by γ-secretase inhibitor DAPT and the suppression of Notch1 expression using siRNA both significantly prevented LPS induced activation of JNK and NF-kB, and simultaneously the expression of GM-CSF was also down regulated significantly. JNK inhibitor SP600125 was used to block the phosphorylation of JNK signaling, Western blot results showed that the activation of NF-kB was blocked and expression of GM-CSF was down-regulated. Finally, flow cytometry analyses showed that the Notch signaling was involved in the regulation of macrophage apoptosis after LPS stimulation. Our study showed that the Notch signaling pathway was activated and involved in the regulation of macrophage apoptosis after LPS stimulation through JNK/ NF-kB signaling regulated GM-CSF expression.
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Affiliation(s)
- G Q Chen
- Department of General Surgery, Xinqiao Hospital, Army Medical University, Chongqing, China
| | - Q M Wang
- Department of General Surgery, Xinqiao Hospital, Army Medical University, Chongqing, China
| | - M Yu
- Department of General Surgery, Xinqiao Hospital, Army Medical University, Chongqing, China
| | - Y D Cheng
- Department of General Surgery, Xinqiao Hospital, Army Medical University, Chongqing, China
| | - Z C Zhang
- Department of General Surgery, Xinqiao Hospital, Army Medical University, Chongqing, China
| | - W S Wang
- Department of General Surgery, Xinqiao Hospital, Army Medical University, Chongqing, China
| | - Y Qiu
- Department of General Surgery, Xinqiao Hospital, Army Medical University, Chongqing, China
| | - L H Sun
- Department of General Surgery, Xinqiao Hospital, Army Medical University, Chongqing, China
| | - K Peng
- Department of General Surgery, Xinqiao Hospital, Army Medical University, Chongqing, China
| | - H Yang
- Department of General Surgery, Xinqiao Hospital, Army Medical University, Chongqing, China
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Chen GQ, Benthani FA, Wu J, Liang D, Bian ZX, Jiang X. Artemisinin compounds sensitize cancer cells to ferroptosis by regulating iron homeostasis. Cell Death Differ 2020; 27:242-254. [PMID: 31114026 PMCID: PMC7205875 DOI: 10.1038/s41418-019-0352-3] [Citation(s) in RCA: 238] [Impact Index Per Article: 59.5] [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: 03/13/2019] [Revised: 04/24/2019] [Accepted: 05/02/2019] [Indexed: 01/19/2023] Open
Abstract
The antimalarial drug artemisinin and its derivatives have been explored as potential anticancer agents, but their underlying mechanisms are controversial. In this study, we found that artemisinin compounds can sensitize cancer cells to ferroptosis, a new form of programmed cell death driven by iron-dependent lipid peroxidation. Mechanistically, dihydroartemisinin (DAT) can induce lysosomal degradation of ferritin in an autophagy-independent manner, increasing the cellular free iron level and causing cells to become more sensitive to ferroptosis. Further, by associating with cellular free iron and thus stimulating the binding of iron-regulatory proteins (IRPs) with mRNA molecules containing iron-responsive element (IRE) sequences, DAT impinges on IRP/IRE-controlled iron homeostasis to further increase cellular free iron. Importantly, in both in vitro and a mouse xenograft model in which ferroptosis was triggered in cancer cells by the inducible knockout of GPX4, we found that DAT can augment GPX4 inhibition-induced ferroptosis in a cohort of cancer cells that are otherwise highly resistant to ferroptosis. Collectively, artemisinin compounds can sensitize cells to ferroptosis by regulating cellular iron homeostasis. Our findings can be exploited clinically to enhance the effect of future ferroptosis-inducing cancer therapies.
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Affiliation(s)
- Guo-Qing Chen
- School of Chinese Medicine, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China
- Cell Biology Program, Memorial Sloan Kettering Cancer Center, New York City, NY, 10065, USA
| | - Fahad A Benthani
- Cell Biology Program, Memorial Sloan Kettering Cancer Center, New York City, NY, 10065, USA
| | - Jiao Wu
- Cell Biology Program, Memorial Sloan Kettering Cancer Center, New York City, NY, 10065, USA
- National Translational Science Center for Molecular Medicine, Department of Cell Biology, School of Basic Medicine, Air Force Medical University, Xi'an, 710032, China
| | - Deguang Liang
- Cell Biology Program, Memorial Sloan Kettering Cancer Center, New York City, NY, 10065, USA
| | - Zhao-Xiang Bian
- School of Chinese Medicine, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China.
| | - Xuejun Jiang
- Cell Biology Program, Memorial Sloan Kettering Cancer Center, New York City, NY, 10065, USA.
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Liu J, Li M, Liu RR, Zhu Y, Chen GQ, Li XB, Geng C, Wang JJ, Gao QX, Heng HY. [Establishment of a CT image radiomics-based prediction model for the differential diagnosis of silicosis and tuberculosis nodules]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2019; 37:707-710. [PMID: 31594134 DOI: 10.3760/cma.j.issn.1001-9391.2019.09.019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To establish a CT image radiomics-based prediction model for the differential diagnosis of silicosis and tuberculosis nodules. Methods: A total of 53 patients with silicosis and 89 patients with tuberculosis who underwent routine CT scans in Suzhou Fifth People's Hospital from January to August, 2018 were enrolled in this study. AK/ITK software was used to segment the images to obtain 139 silicosis lesions and 119 tuberculosis lesions. For each lesion image, 396 features were extracted, and feature dimension reduction was applied to select the most characteristic feature subset. Support vector machine (SVM) , feedforward back propagation neural network (FNN-BP) , and random forest (RF) were implemented using R software (Rstudio V1.1.463) , and the algorithm that achieved the largest area under of the receiver operating characteristic (ROC) curve (AUC) was selected as the final prediction model. Results: RF was the best prediction model for the differential diagnosis of silicosis and tuberculosis nodules, with an accuracy of 83.1%, a sensitivity of 0.76, a specificity of 0.9, and an AUC of 0.917 (95% confidence interval: 0.8431-0.9758) . RF had a significantly larger AUC than SVM and FNN-BP (P<0.05) . Conclusion: CT image-based RF prediction model can be used to differentially diagnose silicosis and tuberculosis nodules.
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Affiliation(s)
- J Liu
- The Affiliated Infectious Diseases Hospital of Soochow University, The Fifth People's Hospital of Suzhou, 215000 Suzhou, China
| | - M Li
- The Affiliated Infectious Diseases Hospital of Soochow University, The Fifth People's Hospital of Suzhou, 215000 Suzhou, China
| | - R R Liu
- The Affiliated Infectious Diseases Hospital of Soochow University, The Fifth People's Hospital of Suzhou, 215000 Suzhou, China
| | - Y Zhu
- The Affiliated Infectious Diseases Hospital of Soochow University, The Fifth People's Hospital of Suzhou, 215000 Suzhou, China
| | - G Q Chen
- The Second Affiliated Hospital of Soochow University, 215000 Suzhou, China
| | - X B Li
- GE Healthcare (Shanghai) Co., Ltd, 200000 Shanghai, China
| | - C Geng
- Suzhou Institute of Biomedical Engineering and Technology Chinese Academy of Sciences, 215000 Suzhou, China
| | - J J Wang
- The Second Affiliated Hospital of Soochow University, 215000 Suzhou, China
| | - Q X Gao
- The Second Affiliated Hospital of Soochow University, 215000 Suzhou, China
| | - H Y Heng
- The Second Affiliated Hospital of Soochow University, 215000 Suzhou, China
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Meng LF, Zhang W, Zhang YG, Wang JY, Liao LM, Chen GQ, Ling Q, Zhang P, Wei ZQ, Chen Q. [Sacral neuromodulation preliminary outcomes in male patients with idiopathic dysuria]. Zhonghua Yi Xue Za Zhi 2019; 99:2675-2680. [PMID: 31505718 DOI: 10.3760/cma.j.issn.0376-2491.2019.34.008] [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: 12/25/2022]
Abstract
Objective: To assess the effectiveness and safety of sacral neuromodulation (SNM) therapy for men with idiopathic dysuria. Methods: From January 2012 to December 2016, a total of 26 patients treated with SNM therapy from multi-center across the country were retrospectively studied. The age ranged from 19 to 86 years with an average age of 45.2 years. Patients suffered from one or multiple urinary symptoms such as frequency of urination, urgency, urinary retention, etc. All patients had received more than two types of conservative therapy including oral and behavioral therapy, but had poor or no improvement. The voiding diary, urgency score and the quality of life score before implantation, in stageⅠ after implantation and stage Ⅱ after permanent implantation were recorded and compared. Results: A total of 22 patients chose to receive IPG at the end of stageⅠ therapy while 4 patients refused further stage Ⅱ therapy because of dissatisfactory effect. The conversion rate of stage Ⅰ to stage Ⅱ was 84.6% (22/26). The average follow-up time was 19.2 months, ranging from 3 to 63 months. The baseline of residual urine, voiding frequency and average voiding amount and those after stage Ⅰ therapy were [5 (0, 137.5) ] ml vs [0 (0, 40) ] ml, 14.6±6.1 vs 9.1±2.8, [100 (80, 135) ] ml vs [190 (150, 210) ] ml, respectively. The differences were statistically significant(all P<0.05).However, no significant differences were found in urination volume and quality of life (QoL) before and after implantation(P>0.05). During an average follow-up time of 19.2 months after the permanent implantation, over 80% patients had an improvement of residual urine volume by more than 50% after permanent implantation while the improvement was 55.6% after stage Ⅰ therapy, suggesting that the improvement of residual urine volume might be positively correlated with the duration of regulation. No significant differences were found in other parameters between stage Ⅰ and Ⅱ therapy. No adverse events like wound infection and electrode dislocation happened during our study. Conclusions: SNM is an effective and safety procedure for male patients with idiopathic dysuria, with a relatively high transfer rate. The medium-term curative effect is stable. The duration of regulation may be positively correlated with the improvement of residual urine.
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Affiliation(s)
- L F Meng
- Department of Urology, Beijing Hospital, National Center of Gerontology, Beijing 100730, China
| | - W Zhang
- Department of Urology, Beijing Hospital, National Center of Gerontology, Beijing 100730, China
| | - Y G Zhang
- Department of Urology, Beijing Hospital, National Center of Gerontology, Beijing 100730, China
| | - J Y Wang
- Department of Urology, Beijing Hospital, National Center of Gerontology, Beijing 100730, China
| | - L M Liao
- Department of Urology, China Rehabilitation Research Centre, Rehabilitation School of Capital Medical University, Beijing 100068, China
| | - G Q Chen
- Department of Urology, China Rehabilitation Research Centre, Rehabilitation School of Capital Medical University, Beijing 100068, China
| | - Q Ling
- Department of Urology, Tongji Hospital, Huazhong University of Science and Technology, Wuhan 430030, China
| | - P Zhang
- Department of Urology, Beijing Chaoyang Hospital, Institute of Urology, Capital Medical University, Beijing 100020, China
| | - Z Q Wei
- Department of Urology, the Second Affiliated Hospital of Nanjing Medical University, Nanjing 210000, China
| | - Q Chen
- Department of Urology, the Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710014, China
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Wang H, Chen YQ, Zeng XZ, Guo SR, Chen GQ. [Tonsil synovial sarcoma with gastric and other systemic metastases:a case report]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2019; 54:466-468. [PMID: 31262114 DOI: 10.3760/cma.j.issn.1673-0860.2019.06.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- H Wang
- Department of Imaging Diagnosis, Second Affiliated Hospital of Suzhou University, Suzhou 215008, China
| | - Y Q Chen
- Department of Ultrasound, Affiliated Hospital of Xuzhou Medical University, Xuzhou 221000, China
| | - X Z Zeng
- Department of Otorhinolaryngology, Affiliated Hospital of Xuzhou Medical University, Xuzhou 221000, China
| | - S R Guo
- Department of Imaging Diagnosis, Second Affiliated Hospital of Suzhou University, Suzhou 215008, China
| | - G Q Chen
- Department of Imaging Diagnosis, Second Affiliated Hospital of Suzhou University, Suzhou 215008, China
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Wu XD, Guo JL, Meng J, Chen GQ. Energy use by globalized economy: Total-consumption-based perspective via multi-region input-output accounting. Sci Total Environ 2019; 662:65-76. [PMID: 30690380 DOI: 10.1016/j.scitotenv.2019.01.108] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2018] [Revised: 01/09/2019] [Accepted: 01/10/2019] [Indexed: 05/15/2023]
Abstract
Within a single integrated globalized economy featuring robust fluxes of interregional trades, the world economy is like a giant bathtub containing the world inventory of energy use. Based on different norms or ethic percepts, the energy use of the world economy is reallocated to nations and regions via global supply chain using normative accounting schemes. By combining typical statistics for world economy 2012, a new perspective is presented in this study to look into the energy use of regional economies from the side of genuine final consumers. Parallel to the final-demand-based accounting method, a total-consumption-based multi-region input-output accounting method is developed following the norm of consumption being the ultimate end and purpose of all producing activities. From a total-consumption-based perspective, the energy use of the United States economy is shown in magnitude 1.8 times that of mainland China, compared to a ratio of 88% from a territorial-based perspective. The consumer-product-related trade imbalances of major economies in terms of both currency and energy use are analyzed, with major interregional net trade flows illustrated. While the United States and mainland China are respectively revealed as the leading net exporter and net importer of currency, the energy trade deficit of the latter is in magnitude around four times the energy trade surplus of the former. The trade structures by geography and sector are respectively presented for the United States and mainland China as two distinct economies. It is found that around half of the United States' exports of energy use originate from transport and service industries, while nearly 90% of mainland China's exports of energy use come from heavy industry. The findings are supportive for nations to identify their roles in the global supply chain from the perspective of genuine final consumers and adjust the trade patterns for sustained energy use.
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Affiliation(s)
- X D Wu
- School of Economics, Peking University, Beijing 100871, China
| | - J L Guo
- Laboratory of Systems Ecology and Sustainability Science, College of Engineering, Peking University, Beijing 100871, China
| | - Jing Meng
- Department of Politics and International Studies, University of Cambridge, Cambridge CB3 9DT, UK; Department of Land Economy, University of Cambridge, Cambridge CB3 9EP, UK
| | - G Q Chen
- Laboratory of Systems Ecology and Sustainability Science, College of Engineering, Peking University, Beijing 100871, China.
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Xie ZB, Le ZG, Fu LH, Chen GQ, Lan J, Hu ZY. An Ionic Liquid-Based Green Synthesis Strategy: Synthesis of Dihydropyrimidinones by Three-Component Biginelli-Type Reaction of Aliphatic Aldehydes, Aromatic Aldehydes and Urea. HETEROCYCLES 2019. [DOI: 10.3987/com-19-14137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Chen GQ, Talebi S, Gras SL, Weeks M, Kentish SE. A review of salty waste stream management in the Australian dairy industry. J Environ Manage 2018; 224:406-413. [PMID: 30071452 DOI: 10.1016/j.jenvman.2018.07.056] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [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: 05/14/2018] [Revised: 07/11/2018] [Accepted: 07/15/2018] [Indexed: 06/08/2023]
Abstract
Saline wastewater is a by-product of cheese manufacturing and whey processing that can have serious environmental and economic consequences. Salty streams originating from dairy processing operations include chromatography wastes, clean-in-place wastewater, acid whey, salty whey and waste generated from whey demineralization processes such as nanofiltration, electrodialysis and ion exchange. With the participation of the major dairy companies in Australia, an industry wide survey was conducted to acquire a comprehensive understanding of the management strategies for these salty waste streams. High salinity waste streams are commonly directed to evaporation ponds. However, environmental impacts from land degradation, odour and dust have prevented the construction of further evaporation ponds in some areas of Australia. The survey results also show that disposal to municipal trade waste is not always effective, as the current levels of some salinity-related parameters are significantly higher than the levels allowed by the local water/environmental authorities. For high salinity streams, salt removal can lead to more substantial savings in trade waste charges compared to wastewater volume reduction. Thus, salt removal and recovery from salty waste streams has become a major focus of the sustainability agenda of the Australian dairy industry.
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Affiliation(s)
- G Q Chen
- The ARC Dairy Innovation Hub, Department of Chemical Engineering, The University of Melbourne, Victoria, 3010, Australia
| | - S Talebi
- The ARC Dairy Innovation Hub, Department of Chemical Engineering, The University of Melbourne, Victoria, 3010, Australia
| | - S L Gras
- The ARC Dairy Innovation Hub, Department of Chemical Engineering, The University of Melbourne, Victoria, 3010, Australia; The Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne, Victoria, 3010, Australia
| | - M Weeks
- Dairy Innovation Australia Ltd., Werribee, VIC, 3030, Australia
| | - S E Kentish
- The ARC Dairy Innovation Hub, Department of Chemical Engineering, The University of Melbourne, Victoria, 3010, Australia.
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Xian H, Wang P, Jing H, Chen GQ, Cheng DF, Ji F, Song S, Zhang L. Comparative study of components and anti-oxidative effects between sulfated polysaccharide and its iron complex. Int J Biol Macromol 2018; 118:1303-1309. [PMID: 29727645 DOI: 10.1016/j.ijbiomac.2018.04.177] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2017] [Revised: 03/13/2018] [Accepted: 04/30/2018] [Indexed: 10/17/2022]
Abstract
Sulfated polysaccharide (SP) extracted from sea algae has been used to chelate with ferric to yield polysaccharide iron complex (SPIC). The main active components and groups, monosaccharide composition, molecular weight and anti-oxidative capability were studied comparatively. Results showed that both have good stability and no free ferric ions in SPIC, and no significant difference in total polysaccharide content while sulfate and protein contents lowering and iron content increasing. Fourier-transform infrared (FTIR) spectra indicated further that iron was chelated in polysaccharide chain. Gas chromatograph (GC) showed that the major monosaccharides were fucose, mucose and glucose with molecular ratio of 10:3.8:3.5 in SPIC and 10:8.4:7.5 in SP. MW of SP and SPIC varied no more at 231,3 kD and 237.2 kD respectively using high-performance liquid chromatography (HPLC). Both had hydroxyl radicals scavenging effects in vitro while SPIC showed stronger effects. Comparing oxygen consumption with control PMA-differentiated cells, both took longer time to achieve higher platform and SPIC showed stronger effects than SP. Fluorescence extensity of intracellular ROS showed that SP could reduce the ROS generation while SPIC enhances the effect. The results revealed that the main active components and antioxidant activity exhibit differentiation after SP chelating with ferric.
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Affiliation(s)
- Hong Xian
- Beijing Key Laboratory for Prevention and Control of Infectious Diseases in Livestock and Poultry, Institute of Animal Husbandry and Veterinary Medicine, Beijing Academy of Agriculture and Forestry Sciences, 9 Middle Rd., of Shuguang Garden, Beijing 100097, China
| | - Ping Wang
- Hebei Institute of Veterinary Medicine Supervision, 19 Changjiang Rd., 050035 Shijiazhuang, Hebei, China
| | - Hua Jing
- Department of Pathology, The 263 Clinic Department of General Hospital of PLA, 141 South of Yongshun Str., Tongzhou District, 101149, Beijing, China
| | - Guo-Qing Chen
- Chongqing Academy of Chinese Materia Medica, 34 Nanshan Rd, Nanan District, 400065 Chongqing, China
| | - Deng-Fang Cheng
- Traditional Chinese Medicine Innovation Laboratory, College of Animal Science, Southwest University, 160 Xueyuan Rd., Rongchang, 402460 Chongqing, China
| | - Feng Ji
- Beijing Key Laboratory for Prevention and Control of Infectious Diseases in Livestock and Poultry, Institute of Animal Husbandry and Veterinary Medicine, Beijing Academy of Agriculture and Forestry Sciences, 9 Middle Rd., of Shuguang Garden, Beijing 100097, China
| | - Shuhui Song
- Beijing Vegetable Research Center, Beijing Academy of Agriculture and Forestry Sciences, 9 Middle Rd., of Shuguang Garden, Beijing 100097, China
| | - Li Zhang
- Beijing Key Laboratory for Prevention and Control of Infectious Diseases in Livestock and Poultry, Institute of Animal Husbandry and Veterinary Medicine, Beijing Academy of Agriculture and Forestry Sciences, 9 Middle Rd., of Shuguang Garden, Beijing 100097, China.
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Chen B, Han MY, Peng K, Zhou SL, Shao L, Wu XF, Wei WD, Liu SY, Li Z, Li JS, Chen GQ. Global land-water nexus: Agricultural land and freshwater use embodied in worldwide supply chains. Sci Total Environ 2018; 613-614:931-943. [PMID: 28946381 DOI: 10.1016/j.scitotenv.2017.09.138] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2017] [Revised: 09/13/2017] [Accepted: 09/14/2017] [Indexed: 06/07/2023]
Abstract
As agricultural land and freshwater inextricably interrelate and interact with each other, the conventional water and land policy in "silos" should give way to nexus thinking when formulating the land and water management strategies. This study constructs a systems multi-regional input-output (MRIO) model to expound global land-water nexus by simultaneously tracking agricultural land and freshwater use flows along the global supply chains. Furthermore, land productivity and irrigation water requirements of 160 crops in different regions are investigated to reflect the land-water linkage. Results show that developed economies (e.g., USA and Japan) and major large developing economies (e.g., mainland China and India) are the overriding drivers of agricultural land and freshwater use globally. In general, significant net transfers of these two resources are identified from resource-rich and less-developed economies to resource-poor and more-developed economies. For some crops, blue water productivity is inversely related to land productivity, indicating that irrigation water consumption is sometimes at odds with land use. The results could stimulus international cooperation for sustainable land and freshwater management targeting on original suppliers and final consumers along the global supply chains. Moreover, crop-specific land-water linkage could provide insights for trade-off decisions on minimizing the environmental impacts on local land and water resources.
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Affiliation(s)
- B Chen
- Laboratory of Systems Ecology and Sustainability Science, College of Engineering, Peking University, Beijing 100871, China
| | - M Y Han
- Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, PR China
| | - K Peng
- Department of New Energy Science and Engineering, School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan 430074, PR China
| | - S L Zhou
- State Key Laboratory of Coal Combustion, Huazhong University of Science and Technology, Wuhan 430074, PR China
| | - L Shao
- School of Humanities and Economic Management, China University of Geosciences, Beijing 100083, People's Republic of China
| | - X F Wu
- Economics School, Zhongnan University of Economics and Law, Wuhan 430073, China
| | - W D Wei
- Business School, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - S Y Liu
- Hebei Provincial Key Laboratory of Heavy Machinery Fluid Power Transmission and Control, Yanshan University, Qinhuangdao 066004, PR China
| | - Z Li
- Laboratory of Systems Ecology and Sustainability Science, College of Engineering, Peking University, Beijing 100871, China
| | - J S Li
- State Key Laboratory of Coal Combustion, Huazhong University of Science and Technology, Wuhan 430074, PR China; Department of New Energy Science and Engineering, School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan 430074, PR China.
| | - G Q Chen
- Laboratory of Systems Ecology and Sustainability Science, College of Engineering, Peking University, Beijing 100871, China.
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Abstract
There have no universally accepted criteria and have been established for classification of underactive bladder (UAB) at present. Thus, the study described the comprehensive clinical and urodynamic characteristics of UAB in patients with lower urinary tract symptoms.A total of 1726 patients (1259 men and 467 women; 6-88 years old) who were admitted to our center with a diagnosis of UAB were included in this retrospective study. It was due to the type of rehabilitation hospital, so higher percentage of neurological patients were included. The demographics, clinical characteristics, and urodynamic recordings were reviewed. The clinical characteristics and urodynamic findings of UAB were further classified.For the etiologic analysis, UAB with aging and without clear causes accounted for 11.5% of cases (199/1726), UAB with bladder outflow obstruction accounted for 2.6% (45/1726), and UAB acting on the nerve pathway of the voiding reflex accounted for 84.6% (1460/1726). There were a number of cases (1.3% [22/1726]) which had >2 factors assigned. For studies involving urodynamic findings and clinical symptoms, the percentage of patients with detrusor hyperreflexia with impaired contractility (DHIC), detrusor underactivity (DU), and acontractile detrusor (AcD) was 0.7%, 5.6%, and 93.7%, respectively.UAB can be classified into 4 types based on possible etiologic mechanisms (idiopathic, myogenic, neurogenic, and integrative). Based on urodynamic findings and symptoms, UAB can be classified into 3 types (DU, AcD, and DHIC). The classification of UAB can provide a reasonable basis for the future research.
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Affiliation(s)
- Xing Li
- The Rehabilitation School of Capital Medical University and Department of Urology at China Rehabilitation Research Centre
- Beijing Key Laboratory of Neural Injury and Rehabilitation and Center of Neural Injury and Repair, Beijing Institute for Brain Disorders, Beijing, China
| | - Li-Min Liao
- The Rehabilitation School of Capital Medical University and Department of Urology at China Rehabilitation Research Centre
- Beijing Key Laboratory of Neural Injury and Rehabilitation and Center of Neural Injury and Repair, Beijing Institute for Brain Disorders, Beijing, China
| | - Guo-Qing Chen
- The Rehabilitation School of Capital Medical University and Department of Urology at China Rehabilitation Research Centre
- Beijing Key Laboratory of Neural Injury and Rehabilitation and Center of Neural Injury and Repair, Beijing Institute for Brain Disorders, Beijing, China
| | - Zhao-Xia Wang
- The Rehabilitation School of Capital Medical University and Department of Urology at China Rehabilitation Research Centre
- Beijing Key Laboratory of Neural Injury and Rehabilitation and Center of Neural Injury and Repair, Beijing Institute for Brain Disorders, Beijing, China
| | - Tian-Ji Lu
- The Rehabilitation School of Capital Medical University and Department of Urology at China Rehabilitation Research Centre
- Beijing Key Laboratory of Neural Injury and Rehabilitation and Center of Neural Injury and Repair, Beijing Institute for Brain Disorders, Beijing, China
| | - Han Deng
- The Rehabilitation School of Capital Medical University and Department of Urology at China Rehabilitation Research Centre
- Beijing Key Laboratory of Neural Injury and Rehabilitation and Center of Neural Injury and Repair, Beijing Institute for Brain Disorders, Beijing, China
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Abstract
The solubility of calcium phosphate in concentrated dairy brine streams is important in understanding mineral scaling on equipment, such as membrane modules, evaporators, and heat exchangers, and in brine pond operation. In this study, the solubility of calcium phosphate has been assessed in the presence of up to 300 g/L sodium chloride as well as lactose, organic acids, and anions at 10, 30, and 50 °C. As a neutral molecule, lactose has a marginal but still detectable effect upon calcium solubility. However, additions of sodium chloride up to 100 g/L result in a much greater increase in calcium solubility. Beyond this point, the concentrations of ions in the solution decrease significantly. These changes in calcium solubility can readily be explained through changes in the activity coefficients. There is little difference in calcium phosphate speciation between 10 and 30 °C. However, at 50 °C, the ratio of calcium to phosphate in the solution is lower than at the other temperatures and varies less with ionic strength. While the addition of sodium lactate has less effect upon calcium solubility than sodium citrate, it still has a greater effect than sodium chloride at an equivalent ionic strength. Conversely, when these organic anions are present in the solution in the acid form, the effect of pH dominates and results in much higher solubility and a calcium/phosphate ratio close to one, indicative of dicalcium phosphate dihydrate as the dominant solid phase.
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Affiliation(s)
| | - J Lee
- Department of Chemical and Process Engineering, University of Surrey Guildford , Surrey GU27XH, United Kingdom
| | - B Zisu
- School of Applied Science, College of Science, Engineering and Health, RMIT University Melbourne , Melbourne, Victoria 3000, Australia
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Chen GQ, Gong RH, Yang DJ, Zhang G, Lu AP, Yan SC, Lin SH, Bian ZX. Halofuginone dually regulates autophagic flux through nutrient-sensing pathways in colorectal cancer. Cell Death Dis 2017; 8:e2789. [PMID: 28492544 PMCID: PMC5520722 DOI: 10.1038/cddis.2017.203] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2016] [Revised: 03/11/2017] [Accepted: 04/06/2017] [Indexed: 02/06/2023]
Abstract
Autophagy has a key role in metabolism and impacts on tumorigenesis. Our previous study found that halofuginone (HF) exerts anticancer activity in colorectal cancer (CRC) by downregulating Akt/mTORC1 (mechanistic target of rapamycin complex 1) signaling pathway. But whether and how HF regulates autophagy and metabolism to inhibit cancer growth remains an open question. Here, we unveil that HF activates ULK1 by downregulation of its phosphorylation site at Ser757 through Akt/mTORC1 signaling pathway, resulting in induction of autophagic flux under nutrient-rich condition. On the other hand, HF inactivates ULK1 by downregulation of its phosphorylation sites at Ser317 and Ser777 through LKB1/AMPK signaling pathway, resulting in autophagic inhibition under nutrient-poor condition. Furthermore, Atg7-dependent autophagosome formation is also induced under nutrient-rich condition or blocked in nutrient-poor environment, respectively, upon HF treatment. More interestingly, we also found that HF inhibits glycolysis under nutrient-rich condition, whereas inhibits gluconeogenesis under nutrient-poor condition in an Atg7-dependent manner, suggesting that autophagy has a pivotal role of glucose metabolism upon HF treatment. Subsequent studies showed that HF treatment retarded tumor growth in xenograft mice fed with either standard chow diet or caloric restriction through dual regulation of autophagy in vivo. Together, HF has a dual role in autophagic modulation depending on nutritional conditions for anti-CRC.
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Affiliation(s)
- Guo-Qing Chen
- Laboratory of Brain and Gut Research, Center for Clinical Research on Chinese Medicine, School of Chinese Medicine, Hong Kong Baptist University, Hong Kong SAR, China
- Chongqing Academy of Chinese Materia Medica, Chongqing, China
| | - Rui-Hong Gong
- Laboratory of Brain and Gut Research, Center for Clinical Research on Chinese Medicine, School of Chinese Medicine, Hong Kong Baptist University, Hong Kong SAR, China
| | - Da-Jian Yang
- Chongqing Academy of Chinese Materia Medica, Chongqing, China
| | - Ge Zhang
- Laboratory of Brain and Gut Research, Center for Clinical Research on Chinese Medicine, School of Chinese Medicine, Hong Kong Baptist University, Hong Kong SAR, China
| | - Ai-Ping Lu
- Laboratory of Brain and Gut Research, Center for Clinical Research on Chinese Medicine, School of Chinese Medicine, Hong Kong Baptist University, Hong Kong SAR, China
| | - Siu-Cheong Yan
- Department of Applied Biology and Chemical Technology, Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong
| | - Shu-Hai Lin
- Laboratory of Brain and Gut Research, Center for Clinical Research on Chinese Medicine, School of Chinese Medicine, Hong Kong Baptist University, Hong Kong SAR, China
- Department of Biochemistry and Molecular Cell Biology, Shanghai Key Laboratory for Tumor Microenvironment and Inflammation, Shanghai Jiao Tong University School of Medicine (SJTU-SM), Shanghai 200025, China
| | - Zhao-Xiang Bian
- Laboratory of Brain and Gut Research, Center for Clinical Research on Chinese Medicine, School of Chinese Medicine, Hong Kong Baptist University, Hong Kong SAR, China
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Liu Y, Chen GQ, Liu BY, Chen Q, Qian YM, Qin SS, Liu CL, Xu CS. P2X 7 receptor in the hippocampus is involved in gp120-induced cognitive dysfunction. Genet Mol Res 2017; 16:gmr-16-01-gmr.16019356. [PMID: 28128418 DOI: 10.4238/gmr16019356] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
To investigate the role of the P2X7 receptor in learning and memory dysfunction induced by HIV-1 envelope glycoprotein gp120 (gp120), we established HIV-1-associated dementia (HAD) animal models by intracerebroventricular (ICV) infusion of gp120 in rats. We observed gp120-induced cognitive dysfunction in the radial arm water maze test. Results showed that rats in the gp120 groups had longer escape latencies and more errors compared to those in the control group. For example, the average trial time in the 50-ng/day-gp120 group on day eight (16.57 ± 1.71 s, N = 90) was significantly longer than that of control rats (9.93 ± 0.68 s, N = 90). The relative expression of P2X7 mRNA in the control, 50-, 70-, and 100-ng/day-gp120 groups were 0.43 ± 0.06, 0.48 ± 0.07, 0.83 ± 0.05, and 0.84 ± 0.10, respectively; relative P2X7 protein expression in those groups was 0.63 ± 0.07, 1.08 ± 0.06, 0.90 ± 0.07, and 1.03 ± 0.11, respectively. According to immunohistochemistry analysis, the staining intensity values for P2X7 protein expression in the control, 50-, 70-, and 100-ng/d-gp120 groups were 0.88 ± 0.07, 1.41 ± 0.12, 1.28 ± 0.13, and 1.31 ± 0.10, respectively. The above results showed that the expression of P2X7 increased significantly in the hippocampus of gp120 rats compared to that of the control group. These results suggest that ICV infusion of gp120 can successfully mimic HAD in rats, and P2X7 may be involved in gp120-induced cognitive dysfunction. This could provide a theoretical foundation and potential drug target for research and treatment of ADC.
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Affiliation(s)
- Y Liu
- The First Clinical Medical College, Nanchang University, Nanchang, China
| | - G Q Chen
- The First Clinical Medical College, Nanchang University, Nanchang, China
| | - B Y Liu
- The First Clinical Medical College, Nanchang University, Nanchang, China
| | - Q Chen
- Department of Physiology, Basic Medical College, Nanchang University, Nanchang, China
| | - Y M Qian
- Nursing College, Nanchang University, Nanchang, China
| | - S S Qin
- Department of Physiology, Basic Medical College, Nanchang University, Nanchang, China
| | - C L Liu
- Department of Physiology, Basic Medical College, Nanchang University, Nanchang, China
| | - C S Xu
- Department of Physiology, Basic Medical College, Nanchang University, Nanchang, China
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Shi HB, Chen GQ, Chen YP, Dong B, Lu JP, Liu XH, Lin FC. MoRad6-mediated ubiquitination pathways are essential for development and pathogenicity in Magnaporthe oryzae. Environ Microbiol 2016; 18:4170-4187. [PMID: 27581713 DOI: 10.1111/1462-2920.13515] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2016] [Accepted: 08/28/2016] [Indexed: 01/19/2023]
Abstract
The ubiquitin system modulates protein functions through targeting substrates for ubiquitination. Here, E2 conjugating enzyme MoRad6-related ubiquitination pathways are identified and analyzed in Magnaporthe oryzae, the causal agent of rice blast disease. Disruption of MoRad6 leads to severe defects in growth, sporulation, conidial germination, appressorium formation, and plant infection. To depict the functions of MoRad6, three putative ubiquitin ligases, MoRad18, MoBre1 and MoUbr1, are also characterized. Deletion of MoRad18 causes minor phenotypic changes, while MoBre1 is required for growth, conidiation and pathogenicity in M. oryzae. Defects in ΔMobre1 likely resulted from the reduction in di- and tri-methylation level of Histone 3 lysine 4 (H3K4). Notably, MoUbr1 is crucial for conidial adhesion and germination, possibly by degrading components of cAMP/PKA and mitogen-activated protein kinase (MAPK) Pmk1 signaling pathways via the N-end rule pathway. Germination failure of ΔMoubr1 conidia could be rescued by elevation of cAMP level or enhanced Pmk1 phosphorylation resulting from further deletion of MoIra1, the M. oryzae homolog of yeast Ira1/2. These reveal vital effects of cAMP/PKA and MAPK Pmk1 signaling on conidial germination in M. oryzae. Altogether, our results suggest that MoRad6-mediated ubiquitination pathways are essential for the infection-related development and pathogenicity of M. oryzae.
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Affiliation(s)
- Huan-Bin Shi
- State Key Laboratory for Rice Biology, Biotechnology Institute, Zhejiang University, Hangzhou, 310058, China
| | - Guo-Qing Chen
- State Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou, 310006, China
| | - Ya-Ping Chen
- State Key Laboratory for Rice Biology, Biotechnology Institute, Zhejiang University, Hangzhou, 310058, China
| | - Bo Dong
- Institute of Virology and Biotechnology, Zhejiang Academy of Agricultural Science, Hangzhou, 310021, China
| | - Jian-Ping Lu
- College of Life Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Xiao-Hong Liu
- State Key Laboratory for Rice Biology, Biotechnology Institute, Zhejiang University, Hangzhou, 310058, China
| | - Fu-Cheng Lin
- State Key Laboratory for Rice Biology, Biotechnology Institute, Zhejiang University, Hangzhou, 310058, China
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Abstract
This paper presents an iterative scheme for solving nonline ar equations. We establish a new rational approximation model with linear numerator and denominator which has generalizes the local linear model. We then employ the new approximation for nonlinear equations and propose an improved Newton’s method to solve it. The new method revises the Jacobian matrix by a rank one matrix each iteration and obtains the quadratic convergence property. The numerical performance and comparison show that the proposed method is efficient.
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Affiliation(s)
- B Saheya
- College of Mathematics Science, Inner Mongolia University, Hohhot, 010021 China ; College of Mathematical Science, Inner Mongolia Normal University, Hohhot, 010022 China
| | - Guo-Qing Chen
- College of Mathematics Science, Inner Mongolia University, Hohhot, 010021 China
| | - Yun-Kang Sui
- College of Mechanical Engineering and Applied Electronics Technology, Beijing University of Technology, Beijing, 100124 China
| | - Cai-Ying Wu
- College of Mathematics Science, Inner Mongolia University, Hohhot, 010021 China
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Li X, Liao LM, Chen GQ, Wang ZX, Lu TJ, Deng H, Loeb GE. Tibial nerve stimulation to inhibit the micturition reflex by an implantable wireless driver microstimulator in cats. Medicine (Baltimore) 2016; 95:e4537. [PMID: 27537576 PMCID: PMC5370802 DOI: 10.1097/md.0000000000004537] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/31/2016] [Revised: 07/14/2016] [Accepted: 07/14/2016] [Indexed: 11/25/2022] Open
Abstract
BACKGROUND Traditional tibial nerve stimulation (TNS) has been used to treat overactive bladder syndrome (OAB), but there are some shortcomings. Thus, a novel alternative is needed for the treatment of OAB. The study investigated the effects of a new type of tibial nerve microstimulator on the micturition reflex in cats. METHODS An implantable wireless driver microstimulator was implanted around the tibial nerve in 9 α-chloralose anesthetized cats. Cystometry was performed by infusing 0.9% normal saline (NS) or 0.25% acetic acid (AA) through a urethral catheter. Multiple cystometrograms were performed before, during, and after TNS to determine the inhibitory effect of the microstimulator on the micturition reflex. RESULTS TNS at 2 threshold (T) intensity significantly increased the bladder capacity (BC) during NS infusion. Bladder overactivity was irritated by the intravesical infusion of 0.25% AA, which significantly reduced the BC compared with the NS infusion. TNS at 2 T intensity suppressed AA-induced bladder overactivity and significantly increased the BC compared with the AA control. CONCLUSION The implantable wireless driver tibial nerve microstimulator appears to be effective in inhibiting the micturition reflex during physiologic and pathologic conditions. The implantable wireless driver tibial nerve microstimulator could be used to treat OAB.
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Affiliation(s)
- Xing Li
- Rehabilitation School of Capital Medical University, Department of Urology at China Rehabilitation Research Centre
- Beijing Key Laboratory of Neural Injury and Rehabilitation
- Center of Neural Injury and Repair, Beijing Institute for Brain Disorders, Beijing, China
| | - Li-Min Liao
- Rehabilitation School of Capital Medical University, Department of Urology at China Rehabilitation Research Centre
- Beijing Key Laboratory of Neural Injury and Rehabilitation
- Center of Neural Injury and Repair, Beijing Institute for Brain Disorders, Beijing, China
| | - Guo-Qing Chen
- Rehabilitation School of Capital Medical University, Department of Urology at China Rehabilitation Research Centre
- Beijing Key Laboratory of Neural Injury and Rehabilitation
- Center of Neural Injury and Repair, Beijing Institute for Brain Disorders, Beijing, China
| | - Zhao-Xia Wang
- Rehabilitation School of Capital Medical University, Department of Urology at China Rehabilitation Research Centre
- Beijing Key Laboratory of Neural Injury and Rehabilitation
- Center of Neural Injury and Repair, Beijing Institute for Brain Disorders, Beijing, China
| | - Tian-Ji Lu
- Rehabilitation School of Capital Medical University, Department of Urology at China Rehabilitation Research Centre
- Beijing Key Laboratory of Neural Injury and Rehabilitation
- Center of Neural Injury and Repair, Beijing Institute for Brain Disorders, Beijing, China
| | - Han Deng
- Rehabilitation School of Capital Medical University, Department of Urology at China Rehabilitation Research Centre
- Beijing Key Laboratory of Neural Injury and Rehabilitation
- Center of Neural Injury and Repair, Beijing Institute for Brain Disorders, Beijing, China
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Chen Q, Hu J, Qin SS, Liu CL, Wu H, Wang JR, Lu XM, Wang J, Chen GQ, Liu Y, Liu BY, Xu CS, Liang SD. Protective effects of naringin against gp120-induced injury mediated by P2X7 receptors in BV2 microglial cells. Genet Mol Res 2016; 15:gmr8649. [PMID: 27323041 DOI: 10.4238/gmr.15028649] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
This study was aimed at exploring the effects of P2X7 receptors on gp120-induced injury and naringin's protective effects against gp120-induced injury in BV2 microglia. BV2 microglia injury model was established by gp120 treatment and MTS assay was used to verify whether naringin has a cell-protective effect against gp120-induced injury. Changes in P2X7 receptor expression were assayed using RT-PCR, qPCR, and western blot. Results showed that the ODs of the Ctrl, gp120, gp120+naringin, and gp120+BBG groups were 0.91 ± 0.10, 0.71 ± 0.09, 0.83 ± 0.10, and 0.83 ± 0.10, respectively. Compared to the control group, the gp120 group showed a significantly decreased cell survival rate. Cell survival rates of the gp120+naringin group increased significantly compared to those of the gp120 group, while no difference was observed when compared to the gp120+BBG group. The relative P2X7 mRNA expression levels in the Ctrl, gp120, gp120+naringin, and gp120+BBG groups were 0.73 ± 0.06, 1.05 ± 0.06, 0.78 ± 0.05, and 0.81 ± 0.04, respectively. The corresponding P2X7 protein expression levels were 0.46 ± 0.04, 0.79 ± 0.04, 0.38 ± 0.07, and 0.42 ± 0.06. P2X7 mRNA and protein expression in the gp120 group increased significantly compared to those in the control group, and declined in the gp120+naringin group compared to those in the gp120 group. Therefore, P2X7 receptors might be involved in gp120-induced injury in BV2 microglia, and naringin might play a protective role by inhibiting the up-regulated expression of P2X7 receptors.
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Affiliation(s)
- Q Chen
- Department of Physiology, Basic Medical College, Nanchang University, Nanchang, China
| | - J Hu
- The First Clinical Medical College, Nanchang University, Nanchang, China
| | - S S Qin
- Department of Physiology, Basic Medical College, Nanchang University, Nanchang, China
| | - C L Liu
- Department of Physiology, Basic Medical College, Nanchang University, Nanchang, China
| | - H Wu
- The Second Clinical Medical College, Nanchang University, Nanchang, China
| | - J R Wang
- The First Clinical Medical College, Nanchang University, Nanchang, China
| | - X M Lu
- The First Clinical Medical College, Nanchang University, Nanchang, China
| | - J Wang
- The First Clinical Medical College, Nanchang University, Nanchang, China
| | - G Q Chen
- The First Clinical Medical College, Nanchang University, Nanchang, China
| | - Y Liu
- The First Clinical Medical College, Nanchang University, Nanchang, China
| | - B Y Liu
- The First Clinical Medical College, Nanchang University, Nanchang, China
| | - C S Xu
- Department of Physiology, Basic Medical College, Nanchang University, Nanchang, China
| | - S D Liang
- Department of Physiology, Basic Medical College, Nanchang University, Nanchang, China
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Chen L, Chen GQ, Martins C, Porretta K, Shklar O, Greco P, Every H, Xu M, Zhou JX, Brochard L. Respiratory Mechanics in Acute Respiratory Distress Syndrome: A Quality Improvement Based Registry Project. Intensive Care Med Exp 2015. [PMCID: PMC4796408 DOI: 10.1186/2197-425x-3-s1-a507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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