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Sun X, Li YH, Gao L, Hu XW, Zhang T, Xu WB, Peng M, Shi JH, Feng RE. [Silent pulmonary shadows]. Zhonghua Jie He He Hu Xi Za Zhi 2024; 47:444-449. [PMID: 38706066 DOI: 10.3760/cma.j.cn112147-20231103-00290] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/07/2024]
Abstract
An elderly woman with a 1-year history of pulmonary shadows was admitted because of intermittent cough and sputum production for 2 months. Chest computed tomography (CT) scans showed bilateral consolidations and ground-glass opacities, with areas of low attenuation inside consolidative opacities on the mediastinal window. Previous history of radiotherapy for nasopharyngeal carcinoma and long-term use of a compound menthol nasal drops provided were important clues to the diagnosis. CT scan-guided needle lung biopsy and bronchoalveolar lavage were performed, and lipid-laden macrophages were confirmed in both bronchoalveolar lavage and lung tissue. Final diagnosis of exogenous lipoid pneumonia was made on the basis of her risk factors for aspiration, history of oil exposure, and classic radiological and histopathological features. Symptoms improved after discontinuation of causative exposure. It is important for clinicians to raise awareness of exogenous lipoid pneumonia and other aspiration lung diseases.
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Affiliation(s)
- X Sun
- Department of Pulmonary and Critical Care Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - Y H Li
- Department of Pulmonary and Critical Care Medicine, Qinghai University Affliated Hospital, Xining 810012, China
| | - L Gao
- Department of Radiology, Peking Union First Hospital, Beijing 100034, China
| | - X W Hu
- Department of Pulmonary and Critical Care Medicine, the First Affiliated Hospital of USTC, Hefei 230001, China
| | - T Zhang
- Department of Pulmonary and Critical Care Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - W B Xu
- Department of Pulmonary and Critical Care Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - M Peng
- Department of Pulmonary and Critical Care Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - J H Shi
- Department of Pulmonary and Critical Care Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - R E Feng
- Department of Pathology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
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Chen XM, Wang XJ, Xu SC, Zhang XL, Wang DS, Shan SG, Hu XW. [Marked improvement in rheumatoid lung nodules after treatment with tocilizumab combined with glucocorticoids and leflunomide: a case report and literature review]. Zhonghua Jie He He Hu Xi Za Zhi 2024; 47:232-236. [PMID: 38448173 DOI: 10.3760/cma.j.cn112147-20231116-00315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 03/08/2024]
Abstract
Rheumatoid arthritis (RA), a chronic autoimmune disorder, is characterized by erosive inflammation of bone and cartilage, leading to progressive joint destruction. Pulmonary involvement occurs in approximately 60% of RA patients, manifests most commonly as interstitial lung disease and, less commonly, as rheumatoid lung nodules. Here, we report a 50-year-old woman, non-smoker, with recurrent cough and sputum of 7 years' duration, accompanied by a chest CT showing multiple cavitary nodules in both lungs. She had been treated empirically at several medical centers and was finally diagnosed with rheumatoid lung nodules. Marked improvement in rheumatoid lung nodules was observed after treatment with tocilizumab in combination with glucocorticoids and leflunomide. The aim of this study was to improve clinicians' understanding of rheumatoid lung nodules by analyzing the clinical features, diagnosis, and treatment of this case, and reviewing the relevant medical literature.
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Affiliation(s)
- X M Chen
- Department of Pulmonary and Critical Care Medicine, Rare Diseases Center of Diagnosis and Management, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230001, China
| | - X J Wang
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230001, China
| | - S C Xu
- Department of Radiology, Hefei 230001, China
| | - X L Zhang
- Department of Pathology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230001, China
| | - D S Wang
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230001, China
| | - S G Shan
- Department of Rheumatology and Immunology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230001, China
| | - X W Hu
- Department of Pulmonary and Critical Care Medicine, Rare Diseases Center of Diagnosis and Management, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230001, China
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Shan RR, Yu JT, Zhang SF, Xie MM, Hou R, Xie CY, Dong ZH, Yang Q, Hu XW, Dong YH, Zhang Y, Luo XF, Cui ZY, Liu XY, Xie YC, Wen JG, Liu MM, Jin J, Chen Q, Meng XM. Madecassoside alleviates acute kidney injury by regulating JNK-mediated oxidative stress and programmed cell death. Phytomedicine 2024; 123:155252. [PMID: 38056145 DOI: 10.1016/j.phymed.2023.155252] [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: 02/10/2023] [Revised: 11/12/2023] [Accepted: 11/27/2023] [Indexed: 12/08/2023]
Abstract
BACKGROUND Acute kidney injury (AKI) has high morbidity and mortality, which is manifested by inflammation and apoptosis. Effective treatment methods for AKI are currently lacking. OBJECTIVE This study demonstrated the protecting effects of Madecassoside (MA) in the cisplatin- and hypoxia-reoxygenation-induced renal tubular epithelial cells in vitro and AKI mice in vivo. METHODS In vivo AKI mouse models were established by inducing them with cisplatin and renal ischemia-reperfusion. In vitro injury models of mouse renal tubular epithelial cells were established by inducing them with cisplatin and hypoxia and reoxygenation, respectively. The mechanism of MA effects was further explored using molecular docking and RNA-sequencing. RESULTS MA could significantly reduce kidney injury in the cisplatin-and renal ischemia-reperfusion (IRI)-induced AKI. Further validation in the two cellular models also showed that MA had protect effects. MA can alleviate AKI in vitro and in vivo by inhibiting inflammation, cell apoptosis, and oxidative stress. MA exhibited high permeability across the Caco-2 cell, can enter cells directly. Through RNA-seq and molecular docking analysis, this study further demonstrated that MA inhibits its activity by directly binding to JNK kinase, thereby inhibiting c-JUN mediated cell apoptosis and improving AKI. In addition, MA has better renal protective effects compared to curcumin and JNK inhibitor SP600125. CONCLUSION The results demonstrate that MA might be a potential drug for the treatment of AKI and act through the JNK/c-JUN signaling pathway.
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Affiliation(s)
- Run-Run Shan
- School of Life Sciences, Anhui Medical University, Hefei, 230032, China; Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, the Key Laboratory of Anti-inflammatory of Immune Medicines, Ministry of Education, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, 230032, China
| | - Ju-Tao Yu
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, the Key Laboratory of Anti-inflammatory of Immune Medicines, Ministry of Education, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, 230032, China
| | - Shao-Fei Zhang
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, the Key Laboratory of Anti-inflammatory of Immune Medicines, Ministry of Education, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, 230032, China
| | - Man-Man Xie
- School of Life Sciences, Anhui Medical University, Hefei, 230032, China
| | - Rui Hou
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, the Key Laboratory of Anti-inflammatory of Immune Medicines, Ministry of Education, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, 230032, China
| | - Chun-Ya Xie
- School of Life Sciences, Anhui Medical University, Hefei, 230032, China
| | - Ze-Hui Dong
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, the Key Laboratory of Anti-inflammatory of Immune Medicines, Ministry of Education, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, 230032, China
| | - Qin Yang
- Department of Clinical Pharmacology, Second Hospital of Anhui Medical University, 678 Furong Road, Hefei, 230601, Anhui, China
| | - Xiao-Wei Hu
- Department of Clinical Pharmacy, Anhui provincial Children's Hospital, Hefei, 230051, China
| | - Yu-Hang Dong
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, the Key Laboratory of Anti-inflammatory of Immune Medicines, Ministry of Education, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, 230032, China
| | - Yao Zhang
- Anqing First People's Hospital of Anhui Medical University, Anqing, 246000, China
| | - Xiu-Feng Luo
- School of Life Sciences, Anhui Medical University, Hefei, 230032, China
| | - Zong-Yu Cui
- Second Clinical Medical College, Anhui Medical University, Hefei, 230032, China
| | - Xiao-Ying Liu
- School of Life Sciences, Anhui Medical University, Hefei, 230032, China; Translational Research Institute of Henan Provincial People's Hospital and People's Hospital of Zhengzhou University, Molecular Pathology Centre, Academy of Medical Sciences, Zhengzhou University, Zhengzhou, Henan, 450053, China
| | - Yun-Chang Xie
- Key Laboratory of Functional Small Organic Molecule Ministry of Education and Jiangxi's Key Laboratory of Green Chemistry, Key Laboratory of Protection and Utilization of Subtropic Plant Resources of Jiangxi Province, School of Life Sciences, Jiangxi Normal University, Nanchang, 330022, China
| | - Jia-Gen Wen
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, the Key Laboratory of Anti-inflammatory of Immune Medicines, Ministry of Education, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, 230032, China
| | - Ming-Ming Liu
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, the Key Laboratory of Anti-inflammatory of Immune Medicines, Ministry of Education, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, 230032, China
| | - Juan Jin
- Department of Pharmacology, School of Basic Medical Sciences, Key Laboratory of Anti-inflammatory and Immunopharmacology, Ministry of Education, Anhui Medical University, Hefei, 230032, China
| | - Qi Chen
- School of Life Sciences, Anhui Medical University, Hefei, 230032, China.
| | - Xiao-Ming Meng
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, the Key Laboratory of Anti-inflammatory of Immune Medicines, Ministry of Education, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, 230032, China.
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Li XY, Yu JT, Dong YH, Shen XY, Hou R, Xie MM, Wei J, Hu XW, Dong ZH, Shan RR, Jin J, Shao W, Meng XM. Protein acetylation and related potential therapeutic strategies in kidney disease. Pharmacol Res 2023; 197:106950. [PMID: 37820854 DOI: 10.1016/j.phrs.2023.106950] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Revised: 09/16/2023] [Accepted: 10/03/2023] [Indexed: 10/13/2023]
Abstract
Kidney disease can be caused by various internal and external factors that have led to a continual increase in global deaths. Current treatment methods can alleviate but do not markedly prevent disease development. Further research on kidney disease has revealed the crucial function of epigenetics, especially acetylation, in the pathology and physiology of the kidney. Histone acetyltransferases (HATs), histone deacetylases (HDACs), and acetyllysine readers jointly regulate acetylation, thus affecting kidney physiological homoeostasis. Recent studies have shown that acetylation improves mechanisms and pathways involved in various types of nephropathy. The discovery and application of novel inhibitors and activators have further confirmed the important role of acetylation. In this review, we provide insights into the physiological process of acetylation and summarise its specific mechanisms and potential therapeutic effects on renal pathology.
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Affiliation(s)
- Xiang-Yu Li
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, the Key Laboratory of Anti-inflammatory of Immune Medicines, Ministry of Education, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei 230032, China
| | - Ju-Tao Yu
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, the Key Laboratory of Anti-inflammatory of Immune Medicines, Ministry of Education, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei 230032, China
| | - Yu-Hang Dong
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, the Key Laboratory of Anti-inflammatory of Immune Medicines, Ministry of Education, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei 230032, China
| | - Xiao-Yu Shen
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, the Key Laboratory of Anti-inflammatory of Immune Medicines, Ministry of Education, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei 230032, China
| | - Rui Hou
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, the Key Laboratory of Anti-inflammatory of Immune Medicines, Ministry of Education, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei 230032, China
| | - Man-Man Xie
- School of Life Sciences, Anhui Medical University, Hefei 230032, China
| | - Jie Wei
- Department of Nephrology, The Second Affiliated Hospital of Anhui Medical University, 678 Furong Road, Hefei 230601, Anhui, China
| | - Xiao-Wei Hu
- Department of Clinical Pharmacy, Anhui Provincial Children's Hospital, Hefei 230051, China
| | - Ze-Hui Dong
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, the Key Laboratory of Anti-inflammatory of Immune Medicines, Ministry of Education, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei 230032, China
| | - Run-Run Shan
- School of Life Sciences, Anhui Medical University, Hefei 230032, China
| | - Juan Jin
- Research Center for Translational Medicine, the Second Affiliated Hospital of Anhui Medical University, Hefei 230601, China
| | - Wei Shao
- School of Basic Medicine, Anhui Medical University, Hefei 230032, China.
| | - Xiao-Ming Meng
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, the Key Laboratory of Anti-inflammatory of Immune Medicines, Ministry of Education, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei 230032, China.
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Yu JT, Fan S, Li XY, Hou R, Hu XW, Wang JN, Shan RR, Dong ZH, Xie MM, Dong YH, Shen XY, Jin J, Wen JG, Liu MM, Wang W, Meng XM. Novel insights into STAT3 in renal diseases. Biomed Pharmacother 2023; 165:115166. [PMID: 37473682 DOI: 10.1016/j.biopha.2023.115166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Revised: 07/07/2023] [Accepted: 07/11/2023] [Indexed: 07/22/2023] Open
Abstract
Signal transducer and activator of transcription 3 (STAT3) is a cell-signal transcription factor that has attracted considerable attention in recent years. The stimulation of cytokines and growth factors can result in the transcription of a wide range of genes that are crucial for several cellular biological processes involved in pro- and anti-inflammatory responses. STAT3 has attracted considerable interest as a result of a recent upsurge in study because of their role in directing the innate immune response and sustaining inflammatory pathways, which is a key feature in the pathogenesis of many diseases, including renal disorders. Several pathological conditions which may involve STAT3 include diabetic nephropathy, acute kidney injury, lupus nephritis, polycystic kidney disease, and renal cell carcinoma. STAT3 is expressed in various renal tissues under these pathological conditions. To better understand the role of STAT3 in the kidney and provide a theoretical foundation for STAT3-targeted therapy for renal disorders, this review covers the current work on the activities of STAT3 and its mechanisms in the pathophysiological processes of various types of renal diseases.
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Affiliation(s)
- Ju-Tao Yu
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, the Key Laboratory of Anti-inflammatory of Immune Medicines, Ministry of Education, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei 230032, China
| | - Shuai Fan
- Anhui Province Key Laboratory of Genitourinary Diseases, Anhui Medical University, Hefei 230032 China; Department of Urology, Institute of Urology, The First Affiliated Hospital of Anhui Medical University, Anhui Medical University, Hefei 230032 China
| | - Xiang-Yu Li
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, the Key Laboratory of Anti-inflammatory of Immune Medicines, Ministry of Education, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei 230032, China
| | - Rui Hou
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, the Key Laboratory of Anti-inflammatory of Immune Medicines, Ministry of Education, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei 230032, China
| | - Xiao-Wei Hu
- Department of Clinical Pharmacy, Anhui Provincial Children's Hospital, Hefei 230051, China
| | - Jia-Nan Wang
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, the Key Laboratory of Anti-inflammatory of Immune Medicines, Ministry of Education, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei 230032, China
| | - Run-Run Shan
- School of Life Sciences, Anhui Medical University, Hefei 230032, China
| | - Ze-Hui Dong
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, the Key Laboratory of Anti-inflammatory of Immune Medicines, Ministry of Education, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei 230032, China
| | - Man-Man Xie
- School of Life Sciences, Anhui Medical University, Hefei 230032, China
| | - Yu-Hang Dong
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, the Key Laboratory of Anti-inflammatory of Immune Medicines, Ministry of Education, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei 230032, China
| | - Xiao-Yu Shen
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, the Key Laboratory of Anti-inflammatory of Immune Medicines, Ministry of Education, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei 230032, China
| | - Juan Jin
- Department of Pharmacology, School of Basic Medical Sciences, Key Laboratory of Anti-inflammatory and Immunopharmacology, Ministry of Education, Anhui Medical University, Hefei 230032, China
| | - Jia-Gen Wen
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, the Key Laboratory of Anti-inflammatory of Immune Medicines, Ministry of Education, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei 230032, China
| | - Ming-Ming Liu
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, the Key Laboratory of Anti-inflammatory of Immune Medicines, Ministry of Education, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei 230032, China
| | - Wei Wang
- Anhui Province Key Laboratory of Genitourinary Diseases, Anhui Medical University, Hefei 230032 China; Department of Urology, Institute of Urology, The First Affiliated Hospital of Anhui Medical University, Anhui Medical University, Hefei 230032 China.
| | - Xiao-Ming Meng
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, the Key Laboratory of Anti-inflammatory of Immune Medicines, Ministry of Education, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei 230032, China.
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Hu XW, Liu H, Ma DS, Xiang CX, Chen H, Pi HT. [Expression of MSI1 and HER2 in mammary Paget's disease and their correlation with clinicopathological features and prognosis]. Zhonghua Bing Li Xue Za Zhi 2023; 52:832-837. [PMID: 37527989 DOI: 10.3760/cma.j.cn112151-20230214-00128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Subscribe] [Scholar Register] [Indexed: 08/03/2023]
Abstract
Objective: To investigate the expression of MSI1 and HER2 in mammary Paget's disease, and the correlation between the expression levels of MSI1 and HER2 and the clinicopathologic characteristics and prognosis of the patients. Methods: Clinical data and paraffin-embedded specimens of 34 pairs of mammary Paget's disease and underlying breast cancer were collected at the Department of Pathology, Affiliated Lianyungang Oriental Hospital of Xuzhou Medical University from March 2011 to December 2019. Immunohistochemistry was used to detect the expression of MSI1 and HER2 in mammary Paget's disease and the accompanying breast cancer, and to analyze the correlation between the expression levels of MSI1 and HER2 and their clinicopathologic features, as well as their influence on prognosis. Results: In mammary Paget's disease, the positive rate of MSI1 was 91.2% (31/34) and the positive rate of HER2 was 88.2% (30/34); the expression of MSI1 and HER2 was positively correlated (P=0.001, r=0.530). The expression of MSI1 was positively correlated with menopausal status (r=0.372, P=0.030) and lymph node metastasis (r=0.450, P=0.008). HER2 expression was positively correlated with menopausal status (r=0.436, P=0.010), and negatively correlated with ER expression (r=-0.365, P=0.034). The co-expression of MSI1 and HER2 was positively correlated with age (r=0.347, P=0.044) and menopausal status (r=0.496, P=0.003), and negatively correlated with ER expression (r=-0.461, P=0.006). Conclusions: MSI1 and HER2 are highly expressed in mammary Paget's disease and their expression levels are positively correlated. The correlation analysis between clinicopathological features and prognosis suggests that both of them may be involved in the occurrence and development of mammary Paget's disease and are potential therapeutic targets for mammary Paget's disease.
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Affiliation(s)
- X W Hu
- Department of Pathology, the Affiliated Lianyungang Oriental Hospital of Xuzhou Medical University, Lianyungang 222042, China
| | - H Liu
- Department of Pathology, the Affiliated Hospital of Xuzhou Medical University, Xuzhou 221006, China
| | - D S Ma
- Department of Pathology, the Affiliated Hospital of Xuzhou Medical University, Xuzhou 221006, China
| | - C X Xiang
- Department of Pathology, the Affiliated Hospital of Xuzhou Medical University, Xuzhou 221006, China
| | - H Chen
- Department of Pathology, the Affiliated Lianyungang First People's Hospital of Xuzhou Medical University, Lianyungang 222000, China
| | - H T Pi
- Department of Pathology, the Affiliated Lianyungang Oriental Hospital of Xuzhou Medical University, Lianyungang 222042, China
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Yang SY, Zhu LH, Yang R, Liao TT, Hu XW. [COL11A1 regulates PI3K/Akt/GSK-3β pathway and promotes human lung adenocarcinoma primary cell migration and invasion]. Zhonghua Jie He He Hu Xi Za Zhi 2023; 46:580-586. [PMID: 37278172 DOI: 10.3760/cma.j.cn112147-20220712-00596] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Objective: To investigate the role and mechanism of COL11A1 in lung adenocarcinoma migration and invasion. Methods: Surgical pathological tissues of 4 patients with lung adenocarcinoma admitted to the Affiliated Hospital of Guizhou Medical University from September to November 2020 were used. Immunohistochemical methods were used to identify lung adenocarcinoma tissues, para-cancerous tissues and parallel transcriptome sequencing. Genetic prognostic analysis was conducted by TCGA and GTEx databases.The expression level of COL11A1 gene in lung adenocarcinoma and adjacent tissues was detected by Western blotting.The primary human lung adenocarcinoma cells cultured. The COL11A1 siRNA was transfected into primary human lung adenocarcinoma cells, then the transcriptome sequencing of differential genes was performed,and KEGG enrichment analysis of differential gene enrichment pathway was conducted. Protein expression and phosphorylation were detected by Western blot method. Cell migration was detected by scratch healing test. Cell proliferation was detected by CCK8 method and invasion ability was detected by Transwell method. Results: Ten differentially expressed genes were screened by transcription sequencing in lung adenocarcinoma. Prognostic analysis of single gene showed that COL11A1 gene expression level was correlated with survival rate (P<0.001). The expression of COL11A1 in lung adenocarcinoma was higher than that in adjacent tissues by Western blot (P<0.001). Transcriptome sequencing of COL11A1 siRNA transfection into primary human lung adenocarcinoma cells showed that differential genes were concentrated in PI3K-akt pathway. The expression of tumor suppressor gene PTEN in siRNA transfection group was significantly higher than that in control group and negative transfection group by Western blot. The expression of Aktp-Akt 473 p-Akt 308 p-PTENp-PDK1p-c-Rafp-GSK-3 β was down-regulated (all P<0.05).Compared with the negative control group, the ability of migration, proliferation and invasion of primary human lung adenocarcinoma cells in siRNA transfection group decreased (all P<0.05). COL11A1 regulates PI3K/Akt/GSK-3 β pathway to promote migration and invasion of primary human lung adenocarcinoma cells. Conclusion: COL11A1 regulates PI3K/Akt/GSK-3 β pathway to promote migration and invasion of primary human lung adenocarcinoma cells.
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Affiliation(s)
- S Y Yang
- Department of Respiratory and Critical Care Medicine, the Affiliated Hospital of Guizhou Medical University, Guizhou 550000, China
| | - L H Zhu
- Guizhou Medical University, GuiZhou 550000, China
| | - R Yang
- Guizhou Medical University, GuiZhou 550000, China
| | - T T Liao
- Guizhou Medical University, GuiZhou 550000, China
| | - X W Hu
- Department of Respiratory and Critical Care Medicine, the Affiliated Hospital of Guizhou Medical University, Guizhou 550000, China
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Liu XW, Lin XT, Zhao C, Hu XW, Xu YB, Zheng YL, Liu XN, Chen G, Chen L, Liu YL. DABCO‐Catalysed [3 + 2] Cyclization/Deformylation Cascade of p‐Quinols with 3‐Formylchromones: Access to Benzopyrone‐Fused Tetracyclic Ring Systems. Adv Synth Catal 2023. [DOI: 10.1002/adsc.202201310] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
Affiliation(s)
- Xiong-Wei Liu
- Guizhou University of Traditional Chinese Medicine CHINA
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Li SL, Yi PP, Chen RC, Huang ZB, Hu XW, Fan XG. [MiR-340 mediates the involvement of high mobility group box 1 in the pathogenesis of liver fibrosis]. Zhonghua Gan Zang Bing Za Zhi 2023; 31:77-83. [PMID: 36948853 DOI: 10.3760/cma.j.cn501113-20210302-00100] [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: 03/24/2023]
Abstract
Objective: To explore the pathogenic mechanism of the miR-340/high mobility group box 1 (HMGB1) axis in the formation of liver fibrosis. Methods: A rat liver fibrosis model was established by injecting CCl(4) intraperitoneally. miRNAs targeting and validating HMGB1 were selected with gene microarrays after screening the differentially expressed miRNAs in rats with normal and hepatic fibrosis. The effect of miRNA expressional changes on HMGB1 levels was detected by qPCR. Dual luciferase gene reporter assays (LUC) was used to verify the targeting relationship between miR-340 and HMGB1. The proliferative activity of the hepatic stellate cell line HSC-T6 was detected by thiazolyl blue tetrazolium bromide (MTT) assay after co-transfection of miRNA mimics and HMGB1 overexpression vector, and the expression of extracellular matrix (ECM) proteins type I collagen and α-smooth muscle actin (SMA) was detected by western blot. Statistical analysis was performed by analysis of variance and the LSD-t test. Results: Hematoxylin-eosin and Masson staining results showed that the rat model of liver fibrosis was successfully established. Gene microarray analysis and bioinformatics prediction had detected eight miRNAs possibly targeting HMGB1, and animal model validation had detected miR-340. qPCR detection results showed that miR-340 had inhibited the expression of HMGB1, and a luciferase complementation assay suggested that miR-340 had targeted HMGB1. Functional experiments results showed that HMGB1 overexpression had enhanced cell proliferation activity and the expression of type I collagen and α-SMA, while miR-340 mimics had not only inhibited cell proliferation activity and the expression of HMGB1, type I collagen, and α-SMA, but also partially reversed the promoting effect of HMGB1 on cell proliferation and ECM synthesis. Conclusion: miR-340 targets HMGB1 to inhibit the proliferation and ECM deposition in hepatic stellate cells and plays a protective role during the process of liver fibrosis.
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Affiliation(s)
- S L Li
- Department of Infectious Disease, Xiangya Hospital, Central South University & Hunan Provincial Key Laboratory of Viral Hepatitis, Changsha 410008, China
| | - P P Yi
- Department of Infectious Disease, Xiangya Hospital, Central South University & Hunan Provincial Key Laboratory of Viral Hepatitis, Changsha 410008, China
| | - R C Chen
- Department of Infectious Disease, Xiangya Hospital, Central South University & Hunan Provincial Key Laboratory of Viral Hepatitis, Changsha 410008, China
| | - Z B Huang
- Department of Infectious Disease, Xiangya Hospital, Central South University & Hunan Provincial Key Laboratory of Viral Hepatitis, Changsha 410008, China
| | - X W Hu
- Department of Infectious Disease, Xiangya Hospital, Central South University & Hunan Provincial Key Laboratory of Viral Hepatitis, Changsha 410008, China
| | - X G Fan
- Department of Infectious Disease, Xiangya Hospital, Central South University & Hunan Provincial Key Laboratory of Viral Hepatitis, Changsha 410008, China
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10
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Gu MZ, Deng YQ, Zhang XT, Lin XT, Xu YB, Hu XW, Liu XN, Zheng YL, Chen G, Liu YL. Cascade Cross‐Coupling/Spirocyclization/Formal [4+2] Cycloaddition Reactions of 3‐(2‐Isocyanoethyl)indoles with Aromatic Azides: Access to Polycyclic Spiroindolines Bearing A Pentasubstituted Guanidine Moiety. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202201168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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11
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Yu JT, Hu XW, Yang Q, Shan RR, Zhang Y, Dong ZH, Li HD, Wang JN, Li C, Xie SS, Dong YH, Ni WJ, Jiang L, Liu XQ, Wei B, Wen JG, Liu MM, Chen Q, Yang YR, Zhang GY, Zang HM, Jin J, Wu YG, Zhong X, Li J, Wang W, Meng XM. Insulin-like growth factor binding protein 7 promotes acute kidney injury by alleviating poly ADP ribose polymerase 1 degradation. Kidney Int 2022; 102:828-844. [PMID: 35752325 DOI: 10.1016/j.kint.2022.05.026] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [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: 01/18/2022] [Revised: 05/16/2022] [Accepted: 05/26/2022] [Indexed: 12/30/2022]
Abstract
The novel biomarker, insulin-like growth factor binding protein 7 (IGFBP7), is used clinically to predict different types of acute kidney injury (AKI) and has drawn significant attention as a urinary biomarker. However, as a secreted protein in the circulation of patients with AKI, it is unclear whether IGFBP7 acts as a key regulator in AKI progression, and if mechanisms underlying its upregulation still need to be determined. Here we found that IGFBP7 is highly expressed in the blood and urine of patients and mice with AKI possibly via a c-Jun-dependent mechanism, and is positively correlated with kidney dysfunction. Global knockout of IGFBP7 ameliorated kidney dysfunction, inflammatory responses, and programmed cell death in murine models of cisplatin-, kidney ischemia/reperfusion-, and lipopolysaccharide-induced AKI. IGFBP7 mainly originated from kidney tubular epithelial cells. Conditional knockout of IGFBP7 from the kidney protected against AKI. By contrast, rescue of IGFBP7 expression in IGFBP7-knockout mice restored kidney damage and inflammation. IGFBP7 function was determined in vitro using recombinant IGFBP7 protein, IGFBP7 knockdown, or overexpression. Additionally, IGFBP7 was found to bind to poly [ADP-ribose] polymerase 1 (PARP1) and inhibit its degradation by antagonizing the E3 ubiquitin ligase ring finger protein 4 (RNF4). Thus, IGFBP7 in circulation acts as a biomarker and key mediator of AKI by inhibiting RNF4/PARP1-mediated tubular injury and inflammation. Hence, over-activation of the IGFBP7/PARP1 axis represents a promising target for AKI treatment.
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Affiliation(s)
- Ju-Tao Yu
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, the Key Laboratory of Anti-inflammatory of Immune Medicines, Ministry of Education, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei 230032, China
| | - Xiao-Wei Hu
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, the Key Laboratory of Anti-inflammatory of Immune Medicines, Ministry of Education, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei 230032, China; Department of clinical pharmacy, Anhui provincial children's hospital, Hefei 230051, China
| | - Qin Yang
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, the Key Laboratory of Anti-inflammatory of Immune Medicines, Ministry of Education, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei 230032, China; Department of Clinical Pharmacology, Second Hospital of Anhui Medical University, 678 Furong Road, Hefei, 230601, Anhui, China
| | - Run-Run Shan
- School of Life Sciences, Anhui Medical University, Hefei 230032, China
| | - Yao Zhang
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, the Key Laboratory of Anti-inflammatory of Immune Medicines, Ministry of Education, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei 230032, China
| | - Ze-Hui Dong
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, the Key Laboratory of Anti-inflammatory of Immune Medicines, Ministry of Education, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei 230032, China
| | - Hai-di Li
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, the Key Laboratory of Anti-inflammatory of Immune Medicines, Ministry of Education, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei 230032, China
| | - Jia-Nan Wang
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, the Key Laboratory of Anti-inflammatory of Immune Medicines, Ministry of Education, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei 230032, China
| | - Chao Li
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, the Key Laboratory of Anti-inflammatory of Immune Medicines, Ministry of Education, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei 230032, China
| | - Shuai-Shuai Xie
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, the Key Laboratory of Anti-inflammatory of Immune Medicines, Ministry of Education, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei 230032, China
| | - Yu-Hang Dong
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, the Key Laboratory of Anti-inflammatory of Immune Medicines, Ministry of Education, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei 230032, China
| | - Wei-Jian Ni
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, the Key Laboratory of Anti-inflammatory of Immune Medicines, Ministry of Education, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei 230032, China
| | - Ling Jiang
- Department of Nephropathy, The First Affiliated Hospital of Anhui Medical University, Hefei, 230032, China
| | - Xue-Qi Liu
- Department of Nephropathy, The First Affiliated Hospital of Anhui Medical University, Hefei, 230032, China
| | - Biao Wei
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, the Key Laboratory of Anti-inflammatory of Immune Medicines, Ministry of Education, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei 230032, China
| | - Jia-Gen Wen
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, the Key Laboratory of Anti-inflammatory of Immune Medicines, Ministry of Education, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei 230032, China
| | - Ming-Ming Liu
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, the Key Laboratory of Anti-inflammatory of Immune Medicines, Ministry of Education, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei 230032, China
| | - Qi Chen
- School of Life Sciences, Anhui Medical University, Hefei 230032, China
| | - Ya-Ru Yang
- Department of Clinical Pharmacology, Second Hospital of Anhui Medical University, 678 Furong Road, Hefei, 230601, Anhui, China
| | - Gui-Yang Zhang
- Department of Pharmacology, School of Basic Medical Sciences, Key Laboratory of Anti-inflammatory and Immunopharmacology, Ministry of Education, Anhui Medical University, Hefei, 230032, China
| | - Hong-Mei Zang
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, the Key Laboratory of Anti-inflammatory of Immune Medicines, Ministry of Education, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei 230032, China
| | - Juan Jin
- Department of Pharmacology, School of Basic Medical Sciences, Key Laboratory of Anti-inflammatory and Immunopharmacology, Ministry of Education, Anhui Medical University, Hefei, 230032, China
| | - Yong-Gui Wu
- Department of Nephropathy, The First Affiliated Hospital of Anhui Medical University, Hefei, 230032, China
| | - Xiang Zhong
- Department of Nephrology, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, 610072 Chengdu, Sichuan, China
| | - Jun Li
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, the Key Laboratory of Anti-inflammatory of Immune Medicines, Ministry of Education, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei 230032, China
| | - Wei Wang
- Department of Urology, Institute of Urology, The First Affiliated Hospital of Anhui Medical University; Anhui Province Key Laboratory of Genitourinary Diseases, Anhui Medical University, Hefei City 230032 China.
| | - Xiao-Ming Meng
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, the Key Laboratory of Anti-inflammatory of Immune Medicines, Ministry of Education, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei 230032, China.
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12
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Liu FL, Yuchi XX, Zhang MH, Huang J, Hu XW, Man RJ. A fluorescent probe derived from Berberrubine for detecting hydrogen polysulfide in food samples. Spectrochim Acta A Mol Biomol Spectrosc 2022; 267:120491. [PMID: 34653849 DOI: 10.1016/j.saa.2021.120491] [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: 09/15/2021] [Revised: 10/05/2021] [Accepted: 10/07/2021] [Indexed: 06/13/2023]
Abstract
In this work, we chose the fluorophore Berberrubine to develop a selective probe for hydrogen polysulfide (H2Sn), and applied it into the detection in both food samples and living cells. The developed probe, HER9SS, suggested practical steadiness and serviceability, especially for multi-scene detection. The detecting system was stable in relatively wide pH (7.0-11.0) and temperature (25-45 °C) ranges. Both the storage of BER9SS in solid or in solution could maintain the steadiness over 7 d. BER9SS also indicated advantages including rapid response (within 15 min), high sensitivity (LOD = 0.02 μM; LOQ = 0.01 μM), long linear range (0-15.0 equivalent) and high selectivity among competing analytes. The recovery ranging in 95.23% - 104.8% in the applications in food sources samples (including water and plants) and food samples inferred the practical potential of BER9SS. In biological imaging, BER9SS could achieve both the dose-dependent monitoring and the β-lapachone-induced generation of H2Sn. Therefore, the information in this work might be useful for the development of fluorescent probes from natural products for multi-scene applications in future, especially with the corresponding attentions on the practicability and serviceability.
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Affiliation(s)
- Fu-Ling Liu
- School of Chemistry and Chemical Engineering, Linyi University, Linyi, Shandong 276005, China
| | - Xue-Xian Yuchi
- School of Chemistry and Chemical Engineering, Linyi University, Linyi, Shandong 276005, China
| | - Mei-Hui Zhang
- School of Chemistry and Chemical Engineering, Linyi University, Linyi, Shandong 276005, China
| | - Jie Huang
- School of Chemistry and Chemical Engineering, Linyi University, Linyi, Shandong 276005, China
| | - Xiao-Wei Hu
- School of Chemistry and Chemical Engineering, Linyi University, Linyi, Shandong 276005, China.
| | - Ruo-Jun Man
- Guangxi Biological Polysaccharide Separation, Purification and Modification Research Platform, Guangxi University for Nationalities, Nanning 530006, China.
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13
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Zhao C, Gu MZ, Chen YY, Hu XW, Xu YB, Lin XM, Liu XN, Chen L, Chen GS, Liu YL. Catalytic divergent synthesis of imidazoles via reaction condition-dependent [3 + 2] cyclization of TosMIC. Org Biomol Chem 2022; 20:8623-8627. [DOI: 10.1039/d2ob01747d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
A base-catalyzed divergent synthesis of 1,4,5-trisubstituted or 1,4-disubstituted imidazoles through TosMIC-based [3 + 2] cyclization reaction has been developed.
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Affiliation(s)
- Cheng Zhao
- School of Chemistry and Chemical Engineering, Guangzhou University, 230 Wai Huan Xi Road, Guangzhou, 51000, China
| | - Man-Zhen Gu
- School of Chemistry and Chemical Engineering, Guangzhou University, 230 Wai Huan Xi Road, Guangzhou, 51000, China
| | - Yi-Yuan Chen
- School of Chemistry and Chemical Engineering, Guangzhou University, 230 Wai Huan Xi Road, Guangzhou, 51000, China
| | - Xiao-Wei Hu
- School of Chemistry and Chemical Engineering, Guangzhou University, 230 Wai Huan Xi Road, Guangzhou, 51000, China
| | - Yi-Bing Xu
- School of Chemistry and Chemical Engineering, Guangzhou University, 230 Wai Huan Xi Road, Guangzhou, 51000, China
| | - Xiao-Min Lin
- School of Chemistry and Chemical Engineering, Guangzhou University, 230 Wai Huan Xi Road, Guangzhou, 51000, China
| | - Xin-Ni Liu
- School of Chemistry and Chemical Engineering, Guangzhou University, 230 Wai Huan Xi Road, Guangzhou, 51000, China
| | - Long Chen
- Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, 2025 Chengluo Avenue, Chengdu 610016, China
| | - Guo-Shu Chen
- School of Chemistry and Chemical Engineering, Guangzhou University, 230 Wai Huan Xi Road, Guangzhou, 51000, China
| | - Yun-Lin Liu
- School of Chemistry and Chemical Engineering, Guangzhou University, 230 Wai Huan Xi Road, Guangzhou, 51000, China
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, China
- Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen 518055, China
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14
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Hu SH, Li HM, Yu H, Liu Y, Liu CX, Zuo XB, Lu J, Jiang JJ, Xi CX, Huang BC, Xu HJ, Hu JB, Lai JB, Huang ML, Liu JN, Xu DG, Guo XC, Wu W, Wu X, Jiang L, Li M, Zhang GP, Huang JW, Wei N, Lv W, Duan JF, Qi HL, Hu CC, Chen JK, Zhou WH, Xu WJ, Liu CF, Liang HY, Du J, Zheng SF, Lu QL, Zheng L, Hu XW, Chen FX, Chen P, Zhu B, Xu LJ, Ni ZM, Fang YZ, Yang ZK, Shan XR, Zheng ED, Zhang F, Zhou QQ, Rao Y, Swaab D, Yue WH, Xu Y. Author Correction: Discovery of new genetic loci for male sexual orientation in Han population. Cell Discov 2021; 7:115. [PMID: 34848678 PMCID: PMC8633345 DOI: 10.1038/s41421-021-00351-5] [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] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Affiliation(s)
- Shao-Hua Hu
- Department of Psychiatry, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China.,The Key Laboratory of Mental Disorder Management in Zhejiang Province, Hangzhou, Zhejiang, China.,National Human Brain Bank for Health and Disease, Hangzhou, Zhejiang, China.,Brain Research Institute, Zhejiang University, Hangzhou, Zhejiang, China
| | - Hai-Mei Li
- Department of Psychiatry, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China.,The Key Laboratory of Mental Disorder Management in Zhejiang Province, Hangzhou, Zhejiang, China
| | - Hao Yu
- Department of Psychiatry, Jining Medical University, 133 Hehua Rd, Jining, Shandong, China
| | - Yan Liu
- Department of Neurobiology, School of Basic Medical Sciences, Capital Medical University, Beijing, China
| | - Chen-Xing Liu
- Department of Human Genetics, University of Pittsburgh, Pittsburgh, PA, USA
| | - Xian-Bo Zuo
- Institute of Dermatology and Department of Dermatology at First Hospital, Anhui Medical University, Hefei, Anhui, China
| | - Jing Lu
- Department of Psychiatry, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China.,The Key Laboratory of Mental Disorder Management in Zhejiang Province, Hangzhou, Zhejiang, China
| | - Jia-Jun Jiang
- Department of Psychiatry, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China.,The Key Laboratory of Mental Disorder Management in Zhejiang Province, Hangzhou, Zhejiang, China
| | - Cai-Xi Xi
- Department of Psychiatry, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China.,The Key Laboratory of Mental Disorder Management in Zhejiang Province, Hangzhou, Zhejiang, China
| | - Bo-Chao Huang
- Department of Psychiatry, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China.,The Key Laboratory of Mental Disorder Management in Zhejiang Province, Hangzhou, Zhejiang, China
| | - Hu-Ji Xu
- Department of General Office, Center for Disease Control of Jianggan District, Hangzhou, Zhejiang, China
| | - Jian-Bo Hu
- Department of Psychiatry, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China.,The Key Laboratory of Mental Disorder Management in Zhejiang Province, Hangzhou, Zhejiang, China
| | - Jian-Bo Lai
- Department of Psychiatry, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China.,The Key Laboratory of Mental Disorder Management in Zhejiang Province, Hangzhou, Zhejiang, China
| | - Man-Li Huang
- Department of Psychiatry, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China.,The Key Laboratory of Mental Disorder Management in Zhejiang Province, Hangzhou, Zhejiang, China
| | - Jian-Ning Liu
- Department of Clinical Laboratory, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Dan-Ge Xu
- State Key Laboratory for Diagnosis and Treatment of Infectious Disease, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Xi-Chao Guo
- Department of Clinical Laboratory, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Wei Wu
- State Key Laboratory for Diagnosis and Treatment of Infectious Disease, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Xin Wu
- Department of Rheumatology and Immunology, Shanghai Changzheng Hospital, The Second Military Medial University, Shanghai, China
| | - Lei Jiang
- Department of Rheumatology and Immunology, Shanghai Changzheng Hospital, The Second Military Medial University, Shanghai, China
| | - Meng Li
- Department of Rheumatology and Immunology, Shanghai Changzheng Hospital, The Second Military Medial University, Shanghai, China
| | - Guang-Ping Zhang
- Department of Clinical Laboratory, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Jin-Wen Huang
- Department of Psychiatry, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Ning Wei
- Department of Psychiatry, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China.,The Key Laboratory of Mental Disorder Management in Zhejiang Province, Hangzhou, Zhejiang, China
| | - Wen Lv
- Department of Psychiatry, Seventh Hangzhou Hospital, Hangzhou, Zhejiang, China
| | - Jin-Feng Duan
- Department of Psychiatry, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Hong-Li Qi
- Department of Psychiatry, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Chan-Chan Hu
- Department of Psychiatry, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Jing-Kai Chen
- Department of Psychiatry, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Wei-Hua Zhou
- Department of Psychiatry, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China.,The Key Laboratory of Mental Disorder Management in Zhejiang Province, Hangzhou, Zhejiang, China
| | - Wei-Juan Xu
- Department of Psychiatry, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China.,The Key Laboratory of Mental Disorder Management in Zhejiang Province, Hangzhou, Zhejiang, China
| | - Chen-Feng Liu
- Medicines & Biochemical Products Branch, Zhejiang Medicine & Health Products I/E CO., Ltd, Hangzhou, Zhejiang, China
| | - Hai-Yong Liang
- BioMiao Biological Technology (Beijing) Co., Ltd, Beijing, China
| | - Jing Du
- Beijing Emei Tongde Technology Development Co., Ltd, Beijing, China
| | - Shu-Fa Zheng
- Department of Clinical Laboratory, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Qiao-Ling Lu
- Department of Aids Venereal Disease Control and Prevention, Shaoxing Center for Disease Control and Prevention, Shaoxing, Zhejiang, China
| | - Lin Zheng
- Department of Prevention and Treatment of AIDS and Sexually Transmitted Diseases, Center for Disease Control and Prevention of Xihu District, Hangzhou, Zhejiang, China
| | - Xiao-Wei Hu
- Department of Clinical Laboratory, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Feng-Xiang Chen
- Department of Clinical Laboratory, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Peng Chen
- International Medical Center, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Biao Zhu
- Department of Infectious Disease, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Li-Jun Xu
- Department of Infectious Disease, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Zhi-Min Ni
- Department of Disease Control, Center for Disease Control of Jianggan District, Hangzhou, Zhejiang, China
| | - Ye-Zhen Fang
- Department of Laboratory, Center for Disease Control of Jianggan District, Hangzhou, Zhejiang, China
| | - Zuo-Kai Yang
- Department of Aids Venereal Disease Control and Prevention, Shaoxing Center for Disease Control and Prevention, Shaoxing, Zhejiang, China
| | - Xin-Ren Shan
- Department of Aids Venereal Disease Control and Prevention, Shaoxing Center for Disease Control and Prevention, Shaoxing, Zhejiang, China
| | - En-de Zheng
- Beijing ViewSolid Biotechnology, Beijing, China
| | - Fan Zhang
- Shanghai OE Biotech. Co., Ltd, Beijing, China
| | | | - Yi Rao
- Department of Neurobiology, School of Basic Medical Sciences, Capital Medical University, Beijing, China.,Peking-Tsinghua Center for Life Sciences, PKU-IDG/McGovern Institute for Brain Research, Peking University School of Life Sciences, Beijing, China
| | - Dick Swaab
- Netherlands Institute for Neuroscience, Amsterdam, 1105 BA, The Netherlands
| | - Wei-Hua Yue
- Institute of Mental Health, National Clinical Research Center for Mental Disorders, Peking University Sixth Hospital, Beijing, China. .,NHC Key Laboratory of Mental Health & Research Unit of Diagnosis and Treatment of Mood Cognitive Disorder (2018RU006), Chinese Academy of Medical Sciences, Beijing, China. .,PKU-IDG/McGovern Institute for Brain Research, Peking University, Beijing, China.
| | - Yi Xu
- Department of Psychiatry, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China. .,The Key Laboratory of Mental Disorder Management in Zhejiang Province, Hangzhou, Zhejiang, China. .,National Human Brain Bank for Health and Disease, Hangzhou, Zhejiang, China. .,Brain Research Institute, Zhejiang University, Hangzhou, Zhejiang, China.
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15
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Hu SH, Li HM, Yu H, Liu Y, Liu CX, Zuo XB, Lu J, Jiang JJ, Xi CX, Huang BC, Xu HJ, Hu JB, Lai JB, Huang ML, Liu JN, Xu DG, Guo XC, Wu W, Wu X, Jiang L, Li M, Zhang GP, Huang JW, Wei N, Lv W, Duan JF, Qi HL, Hu CC, Chen JK, Zhou WH, Xu WJ, Liu CF, Liang HY, Du J, Zheng SF, Lu QL, Zheng L, Hu XW, Chen FX, Chen P, Zhu B, Xu LJ, Ni ZM, Fang YZ, Yang ZK, Shan XR, Zheng ED, Zhang F, Zhou QQ, Rao Y, Swaab D, Yue WH, Xu Y. Discovery of new genetic loci for male sexual orientation in Han population. Cell Discov 2021; 7:103. [PMID: 34719679 PMCID: PMC8558329 DOI: 10.1038/s41421-021-00341-7] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Accepted: 08/31/2021] [Indexed: 12/12/2022] Open
Abstract
Epidemiological studies have demonstrated that the genetic factors partly influence the development of same-sex sexual behavior, but most genetic studies have focused on people of primarily European ancestry, potentially missing important biological insights. Here, we performed a two-stage genome-wide association study (GWAS) with a total sample of 1478 homosexual males and 3313 heterosexual males in Han Chinese populations and identified two genetic loci (rs17320865, Xq27.3, FMR1NB, Pmeta = 8.36 × 10-8, OR = 1.29; rs7259428, 19q12, ZNF536, Pmeta = 7.58 × 10-8, OR = 0.75) showing consistent association with male sexual orientation. A fixed-effect meta-analysis including individuals of Han Chinese (n = 4791) and European ancestries (n = 408,995) revealed 3 genome-wide significant loci of same-sex sexual behavior (rs9677294, 2p22.1, SLC8A1, Pmeta = 1.95 × 10-8; rs2414487, 15q21.3, LOC145783, Pmeta = 4.53 × 10-9; rs2106525, 7q31.1, MDFIC, Pmeta = 6.24 × 10-9). These findings may provide new insights into the genetic basis of male sexual orientation from a wider population scope. Furthermore, we defined the average ZNF536-immunoreactivity (ZNF536-ir) concentration in the suprachiasmatic nucleus (SCN) as lower in homosexual individuals than in heterosexual individuals (0.011 ± 0.001 vs 0.021 ± 0.004, P = 0.013) in a postmortem study. In addition, compared with heterosexuals, the percentage of ZNF536 stained area in the SCN was also smaller in the homosexuals (0.075 ± 0.040 vs 0.137 ± 0.103, P = 0.043). More homosexual preference was observed in FMR1NB-knockout mice and we also found significant differences in the expression of serotonin, dopamine, and inflammation pathways that were reported to be related to sexual orientation when comparing CRISPR-mediated FMR1NB knockout mice to matched wild-type target C57 male mice.
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Affiliation(s)
- Shao-Hua Hu
- Department of Psychiatry, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
- The Key Laboratory of Mental Disorder Management in Zhejiang Province, Hangzhou, Zhejiang, China
- National Human Brain Bank for Health and Disease, Hangzhou, Hangzhou, Zhejiang, China
- Brain Research Institute, Zhejiang University, Hangzhou, Zhejiang, China
| | - Hai-Mei Li
- Department of Psychiatry, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
- The Key Laboratory of Mental Disorder Management in Zhejiang Province, Hangzhou, Zhejiang, China
| | - Hao Yu
- Department of Psychiatry, Jining Medical University, 133 Hehua Rd, Jining, Shandong, China
| | - Yan Liu
- Department of Neurobiology, School of Basic Medical Sciences, Capital Medical University, Beijing, China
| | - Chen-Xing Liu
- Department of Human Genetics, University of Pittsburgh, Pittsburgh, PA, USA
| | - Xian-Bo Zuo
- Institute of Dermatology and Department of Dermatology at First Hospital, Anhui Medical University, Hefei, Anhui, China
| | - Jing Lu
- Department of Psychiatry, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
- The Key Laboratory of Mental Disorder Management in Zhejiang Province, Hangzhou, Zhejiang, China
| | - Jia-Jun Jiang
- Department of Psychiatry, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
- The Key Laboratory of Mental Disorder Management in Zhejiang Province, Hangzhou, Zhejiang, China
| | - Cai-Xi Xi
- Department of Psychiatry, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
- The Key Laboratory of Mental Disorder Management in Zhejiang Province, Hangzhou, Zhejiang, China
| | - Bo-Chao Huang
- Department of Psychiatry, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
- The Key Laboratory of Mental Disorder Management in Zhejiang Province, Hangzhou, Zhejiang, China
| | - Hu-Ji Xu
- Department of General Office, Center for Disease Control of Jianggan District, Hangzhou, Zhejiang, China
| | - Jian-Bo Hu
- Department of Psychiatry, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
- The Key Laboratory of Mental Disorder Management in Zhejiang Province, Hangzhou, Zhejiang, China
| | - Jian-Bo Lai
- Department of Psychiatry, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
- The Key Laboratory of Mental Disorder Management in Zhejiang Province, Hangzhou, Zhejiang, China
| | - Man-Li Huang
- Department of Psychiatry, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
- The Key Laboratory of Mental Disorder Management in Zhejiang Province, Hangzhou, Zhejiang, China
| | - Jian-Ning Liu
- Department of Clinical Laboratory, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Dan-Ge Xu
- State Key Laboratory for Diagnosis and Treatment of Infectious Disease, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Xi-Chao Guo
- Department of Clinical Laboratory, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Wei Wu
- State Key Laboratory for Diagnosis and Treatment of Infectious Disease, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Xin Wu
- Department of Rheumatology and Immunology, Shanghai Changzheng Hospital, The Second Military Medial University, Shanghai, China
| | - Lei Jiang
- Department of Rheumatology and Immunology, Shanghai Changzheng Hospital, The Second Military Medial University, Shanghai, China
| | - Meng Li
- Department of Rheumatology and Immunology, Shanghai Changzheng Hospital, The Second Military Medial University, Shanghai, China
| | - Guang-Ping Zhang
- Department of Clinical Laboratory, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Jin-Wen Huang
- Department of Psychiatry, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Ning Wei
- Department of Psychiatry, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
- The Key Laboratory of Mental Disorder Management in Zhejiang Province, Hangzhou, Zhejiang, China
| | - Wen Lv
- Department of Psychiatry, Seventh Hangzhou Hospital, Hangzhou, Zhejiang, China
| | - Jin-Feng Duan
- Department of Psychiatry, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Hong-Li Qi
- Department of Psychiatry, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Chan-Chan Hu
- Department of Psychiatry, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Jing-Kai Chen
- Department of Psychiatry, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Wei-Hua Zhou
- Department of Psychiatry, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
- The Key Laboratory of Mental Disorder Management in Zhejiang Province, Hangzhou, Zhejiang, China
| | - Wei-Juan Xu
- Department of Psychiatry, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
- The Key Laboratory of Mental Disorder Management in Zhejiang Province, Hangzhou, Zhejiang, China
| | - Chen-Feng Liu
- Medicines&Biochemical Products Branch, Zhejiang Medicine &Health Products I/E CO., Ltd, Hangzhou, Zhejiang, China
| | - Hai-Yong Liang
- BioMiao Biological Technology (Beijing) Co., Ltd, Beijing, China
| | - Jing Du
- Beijing Emei Tongde Technology Development Co., Ltd, Beijing, China
| | - Shu-Fa Zheng
- Department of Clinical Laboratory, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Qiao-Ling Lu
- Department of Aids Venereal Disease Control and Prevention, Shaoxing Center for Disease Control and Prevention, Shaoxing, Zhejiang, China
| | - Lin Zheng
- Department of Prevention and Treatment of AIDS and Sexually Transmitted Diseases, Center for Disease Control and Prevention of Xihu District, Hangzhou, Zhejiang, China
| | - Xiao-Wei Hu
- Department of Clinical Laboratory, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Feng-Xiang Chen
- Department of Clinical Laboratory, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Peng Chen
- International medical center, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Biao Zhu
- Department of Infectious Disease, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Li-Jun Xu
- Department of Infectious Disease, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Zhi-Min Ni
- Department of Disease Control, Center for Disease Control of Jianggan District, Hangzhou, Zhejiang, China
| | - Ye-Zhen Fang
- Department of Laboratory, Center for Disease Control of Jianggan District, Hangzhou, Zhejiang, China
| | - Zuo-Kai Yang
- Department of Aids Venereal Disease Control and Prevention, Shaoxing Center for Disease Control and Prevention, Shaoxing, Zhejiang, China
| | - Xin-Ren Shan
- Department of Aids Venereal Disease Control and Prevention, Shaoxing Center for Disease Control and Prevention, Shaoxing, Zhejiang, China
| | - En-de Zheng
- Beijing ViewSolid Biotechnology, Beijing, China
| | - Fan Zhang
- Shanghai OE Biotech. Co., Ltd, Beijing, China
| | | | - Yi Rao
- Department of Neurobiology, School of Basic Medical Sciences, Capital Medical University, Beijing, China
- Peking-Tsinghua Center for Life Sciences, PKU-IDG/McGovern Institute for Brain Research, Peking University School of Life Sciences, Beijing, China
| | - Dick Swaab
- Netherlands Institute for Neuroscience, Amsterdam, 1105 BA, The Netherlands
| | - Wei-Hua Yue
- Institute of Mental Health, National Clinical Research Center for Mental Disorders, Peking University Sixth Hospital, Beijing, China.
- NHC Key Laboratory of Mental Health, & Research Unit of Diagnosis and Treatment of Mood Cognitive Disorder (2018RU006), Chinese Academy of Medical Sciences, Beijing, China.
- PKU-IDG/McGovern Institute for Brain Research, Peking University, Beijing, China.
| | - Yi Xu
- Department of Psychiatry, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China.
- The Key Laboratory of Mental Disorder Management in Zhejiang Province, Hangzhou, Zhejiang, China.
- National Human Brain Bank for Health and Disease, Hangzhou, Hangzhou, Zhejiang, China.
- Brain Research Institute, Zhejiang University, Hangzhou, Zhejiang, China.
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Fang YB, Lin XT, Chen GS, Ren H, Deng DS, Hu XW, Xu YB, Chen SJ, Liu YL. Stereoselective Access to Spirooxindoles and Bisoxindoles Through Organocatalyzed Asymmetric Divergent Transformations of Isatin-derived MBH Carbonates. Chem Asian J 2021; 16:3086-3090. [PMID: 34418316 DOI: 10.1002/asia.202100792] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Revised: 08/07/2021] [Indexed: 12/16/2022]
Abstract
An interesting β-isoquinidine catalyzed divergent reaction was developed to produce either spirocyclopentene oxindoles, spirocyclopentadiene oxindoles or bisoxindoles in a high enantioselective fashion. The utility of this protocol was demonstrated by the versatile transformations of the products. This work not only represents the first highly stereoselective intermolecular catalytic asymmetric allylic alkylation reaction between two isatin-derived MBH carbonate molecules but also constitutes a rare example of isatin-derived MBH carbonate-based enantioselective and α-regioselective [3+2] cycloaddition reactions.
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Affiliation(s)
- Yu-Bo Fang
- School of Chemistry and Chemical Engineering, Guangzhou University, 230 Wai Huan Xi Road, Guangzhou, 510006, P. R. China
| | - Xiao-Tong Lin
- School of Chemistry and Chemical Engineering, Guangzhou University, 230 Wai Huan Xi Road, Guangzhou, 510006, P. R. China
| | - Guo-Shu Chen
- School of Chemistry and Chemical Engineering, Guangzhou University, 230 Wai Huan Xi Road, Guangzhou, 510006, P. R. China
| | - Hai Ren
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang, 550014, P. R. China
| | - Dong-Sheng Deng
- College of Chemistry and Chemical Engineering, Luoyang Normal University, Luoyang, 471934, P. R. China
| | - Xiao-Wei Hu
- School of Chemistry and Chemical Engineering, Guangzhou University, 230 Wai Huan Xi Road, Guangzhou, 510006, P. R. China
| | - Yi-Bing Xu
- School of Chemistry and Chemical Engineering, Guangzhou University, 230 Wai Huan Xi Road, Guangzhou, 510006, P. R. China
| | - Shu-Jie Chen
- School of Chemistry and Chemical Engineering, Guangzhou University, 230 Wai Huan Xi Road, Guangzhou, 510006, P. R. China
| | - Yun-Lin Liu
- School of Chemistry and Chemical Engineering, Guangzhou University, 230 Wai Huan Xi Road, Guangzhou, 510006, P. R. China.,Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, 518055, P. R. China
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17
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Yang Q, Gao L, Hu XW, Wang JN, Zhang Y, Dong YH, Lan HY, Meng XM. Smad3-Targeted Therapy Protects against Cisplatin-Induced AKI by Attenuating Programmed Cell Death and Inflammation via a NOX4-Dependent Mechanism. Kidney Dis (Basel) 2021; 7:372-390. [PMID: 34604344 DOI: 10.1159/000512986] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2020] [Accepted: 11/11/2020] [Indexed: 12/30/2022]
Abstract
Background Transforming growth factor-β (TGF-β)/Smad signaling is the central mediator in renal fibrosis, yet its functional role in acute kidney injury (AKI) is not fully understood. Recent evidence showed that TGF-β/Smad3 may be involved in the pathogenesis of AKI, but its functional role and mechanism of action in cisplatin-induced AKI are unclear. Objectives Demonstrating that Smad3 may play certain roles in cisplatin nephropathy due to its potential effect on programmed cell death and inflammation. Methods Here, we established a cisplatin-induced AKI mouse model with Smad3 knockout mice and created stable in vitro models with Smad3 knockdown tubular epithelial cells. In addition, we tested the potential of Smad3-targeted therapy using 2 in vivo protocols - lentivirus-mediated Smad3 silencing in vivo and use of naringenin, a monomer used in traditional Chinese medicine and a natural inhibitor of Smad3. Results Disruption of Smad3 attenuated cisplatin-induced kidney injury, inflammation, and NADPH oxidase 4-dependent oxidative stress. We found that Smad3-targeted therapy protected against loss of renal function and alleviated apoptosis, RIPK-mediated necroptosis, renal inflammation, and oxidative stress in cisplatin nephropathy. Conclusions These findings show that Smad3 promotes cisplatin-induced AKI and Smad3-targeted therapy protects against this pathological process. These findings have substantial clinical relevance, as they suggest a therapeutic target for AKI.
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Affiliation(s)
- Qin Yang
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, The Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Hefei, China
| | - Li Gao
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, The Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Hefei, China
| | - Xiao-Wei Hu
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, The Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Hefei, China
| | - Jia-Nan Wang
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, The Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Hefei, China
| | - Yao Zhang
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, The Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Hefei, China
| | - Yu-Hang Dong
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, The Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Hefei, China
| | - Hui Yao Lan
- Department of Medicine & Therapeutics, Li Ka Shing Institute of Health Sciences, and Shenzhen Research Institute, The Chinese University of Hong Kong, Hong Kong, China
| | - Xiao-Ming Meng
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, The Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Hefei, China
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18
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Ji SQ, Han R, Lin H, Huang PP, Ji CL, Hu XW, Liang F, Ma L. [Prevalence and influencing factors of deciduous dental caries among preschool children in Qingdao city in 2019]. Zhonghua Yu Fang Yi Xue Za Zhi 2021; 55:1129-1132. [PMID: 34619932 DOI: 10.3760/cma.j.cn112150-20210105-00008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
In 2019, the rate of primary tooth caries rate among 1 598 preschool children in Shinan District and Shibei District of Qingdao was 59.4%. The multivariate logistic regression model showed that compared with children ≤ 2 years old with history of iron deficiency anemia (IDA), suffering IDA, breastfeeding to 2 years old and no tooth melanin, children ≤ 2 years old without history of IDA, not suffering IDA, breastfeeding to less than 2 years old and heavy tooth melanin had a lower risk of primary tooth caries, with OR (95%CI) values about 0.328 (0.197-0.549), 0.354 (0.208-0.603), 0.636 (0.437-0.926) and 0.301 (0.143-0.635), respectively.
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Affiliation(s)
- S Q Ji
- School of Stomatology, Qingdao University, Qingdao 266000, China
| | - R Han
- Department of Stomatology, Affiliated Hospital of Qingdao University, Qingdao 266000, China
| | - H Lin
- School of Stomatology, Qingdao University, Qingdao 266000, China
| | - P P Huang
- School of Stomatology, Qingdao University, Qingdao 266000, China
| | - C L Ji
- Department of Stomatology, Affiliated Hospital of Qingdao University, Qingdao 266000, China
| | - X W Hu
- Songshan Community Health Service Center, Luoyang Street, Shibei District, Qingdao 266000, China
| | - F Liang
- Dengzhou Road Street Community Health Service Center, Shibei District, Qingdao 266000, China
| | - L Ma
- Department of Stomatology, Affiliated Hospital of Qingdao University, Qingdao 266000, China
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19
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Yang B, Zhou J, Wang F, Hu XW, Shi Y. Pyrazoline derivatives as tubulin polymerization inhibitors with one hit for Vascular Endothelial Growth Factor Receptor 2 inhibition. Bioorg Chem 2021; 114:105134. [PMID: 34246970 DOI: 10.1016/j.bioorg.2021.105134] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Revised: 06/06/2021] [Accepted: 06/26/2021] [Indexed: 02/07/2023]
Abstract
In this work, to check the effect of the transposition of the rings in typical patterns, a series of pyrazoline derivatives 3a-3t bearing the characteristic 3,4,5-trimethoxy phenyl and thiophene moieties were synthesized and evaluated as tubulin polymerization inhibitors. Basically, as the concise output of our design, a majority of the synthesized compounds showed potency in inhibiting the tubulin polymerization. The top hit, 3q, exhibited potent anti-proliferation activity on cancer cell lines. It was comparable on tubulin-polymerization inhibition with the positive control Colchicine but lower toxic. The VEGFR2 inhibitory potency was introduced occasionally. The flow cytometry assay confirmed the apoptotic procedure and the confocal imaging revealed the tubulin-microtubule dynamics pattern. The anti-cancer mechanism of 3q was similar to Colchicine but not exactly the same on forming multi-polar spindles. The docking simulation visualized the possible binding patterns of 3q into tubulin and VEGFR2, respectively. The results inferred that further investigations on the transposition of the rings might lead to the improvement of tubulin polymerization inhibitory activity and the steadily introduction of the VEGFR2 inhibition.
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Affiliation(s)
- Bing Yang
- School of Chemistry and Chemical Engineering, Nantong University, Nantong, Jiangsu 226019, China.
| | - Jiahua Zhou
- School of Chemistry and Chemical Engineering, Nantong University, Nantong, Jiangsu 226019, China
| | - Fa Wang
- School of Chemistry and Chemical Engineering, Nantong University, Nantong, Jiangsu 226019, China
| | - Xiao-Wei Hu
- School of Chemistry and Chemical Engineering, Linyi University, Linyi, Shandong 276005, China
| | - Yujun Shi
- School of Chemistry and Chemical Engineering, Nantong University, Nantong, Jiangsu 226019, China.
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20
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Yang Q, Zang HM, Xing T, Zhang SF, Li C, Zhang Y, Dong YH, Hu XW, Yu JT, Wen JG, Jin J, Li J, Zhao R, Ma TT, Meng XM. Gypenoside XLIX protects against acute kidney injury by suppressing IGFBP7/IGF1R-mediated programmed cell death and inflammation. Phytomedicine 2021; 85:153541. [PMID: 33773190 DOI: 10.1016/j.phymed.2021.153541] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [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: 07/05/2020] [Revised: 02/23/2021] [Accepted: 03/04/2021] [Indexed: 06/12/2023]
Abstract
BACKGROUND Acute kidney injury (AKI), characterised by excessive inflammatory cell recruitment and programmed cell death, has a high morbidity and mortality; however, effective and specific therapies for AKI are still lacking. OBJECTIVE This study aimed to evaluate the renoprotective effects of gypenoside XLIX (Gyp XLIX) in AKI. METHODS The protective effects of Gyp XLIX were tested in two AKI mouse models established using male C57BL/6 mice (aged 6-8 weeks) by a single intraperitoneal injection of cisplatin (20 mg/kg) or renal ischemia-reperfusion for 40 min. Gyp XLIX was administered intraperitoneally before cisplatin administration or renal ischemia-reperfusion. Renal function, tubular injury, renal inflammation and programmed cell death were evaluated. In addition, the renoprotective effects of Gyp XLIX were also evaluated in cisplatin- or hypoxia-treated tubular epithelial cells. The mechanisms underlying these effects were then explored using RNA sequencing. RESULTS In vivo, Gyp XLIX substantially suppressed the increase in serum creatinine and blood urea nitrogen levels. Moreover, tubular damage was alleviated by Gyp XLIX as shown by periodic acid-Schiff staining, electron microscopy and molecular analysis of KIM-1. Consistently, we found that Gyp XLIX suppressed renal necroptosis though the RIPK1/RIPK3/MLKL pathway. The anti-inflammatory and antinecroptotic effects were further confirmed in vitro. Mechanistically, RNA sequencing showed that Gyp XLIX markedly suppressed the levels of IGF binding protein 7 (IGFBP7). Co-immunoprecipitation and western blot analysis further showed that Gyp XLIX reduced the binding of IGFBP7 to IGF1 receptor (IGF1R). Additionally, picropodophyllin, an inhibitor of IGF1R, abrogated the therapeutic effects of Gyp XLIX on cisplatin-induced renal cell injury; this finding indicated that Gyp XLIX may function by activating IGF1R-mediated downstream signalling Additionally, we also detected the metabolic distribution of Gyp XLIX after injection; Gyp XLIX had a high concentration in the kidney and exhibited a long retention time. These findings may shed light on the application of Gyp XLIX for AKI treatment clinically. CONCLUSION Gyp XLIX may serve as a potential therapeutic agent for AKI treatment via IGFBP7/ IGF1R-dependent mechanisms.
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Affiliation(s)
- Qin Yang
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, the Key Laboratory of Anti-inflammatory of Immune Medicines, Ministry of Education, Hefei, 230032, China
| | - Hong-Mei Zang
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, the Key Laboratory of Anti-inflammatory of Immune Medicines, Ministry of Education, Hefei, 230032, China
| | - Tian Xing
- College & Hospital of Stomatology, Anhui Medical University, Key Lab. of Oral Diseases Research of Anhui Province, Hefei, 230032, China
| | - Shao-Fei Zhang
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, the Key Laboratory of Anti-inflammatory of Immune Medicines, Ministry of Education, Hefei, 230032, China; School of Life Sciences, Huaibei Normal University, 100 Dongshan Road, Huaibei 235000, Anhui Province, China
| | - Chao Li
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, the Key Laboratory of Anti-inflammatory of Immune Medicines, Ministry of Education, Hefei, 230032, China
| | - Yao Zhang
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, the Key Laboratory of Anti-inflammatory of Immune Medicines, Ministry of Education, Hefei, 230032, China
| | - Yu-Hang Dong
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, the Key Laboratory of Anti-inflammatory of Immune Medicines, Ministry of Education, Hefei, 230032, China
| | - Xiao-Wei Hu
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, the Key Laboratory of Anti-inflammatory of Immune Medicines, Ministry of Education, Hefei, 230032, China
| | - Ju-Tao Yu
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, the Key Laboratory of Anti-inflammatory of Immune Medicines, Ministry of Education, Hefei, 230032, China
| | - Jia-Gen Wen
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, the Key Laboratory of Anti-inflammatory of Immune Medicines, Ministry of Education, Hefei, 230032, China
| | - Juan Jin
- Department of Pharmacology, Key Laboratory of Anti-inflammatory and Immunopharmacology, Ministry of Education, Anhui Medical University, Hefei 230032, China
| | - Jun Li
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, the Key Laboratory of Anti-inflammatory of Immune Medicines, Ministry of Education, Hefei, 230032, China
| | - Ren Zhao
- Department of Cardiology, The First Affiliated Hospital of Anhui Medical University, 218 Jixi Road, Hefei, 230022, Anhui, China.
| | - Tao-Tao Ma
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, the Key Laboratory of Anti-inflammatory of Immune Medicines, Ministry of Education, Hefei, 230032, China.
| | - Xiao-Ming Meng
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, the Key Laboratory of Anti-inflammatory of Immune Medicines, Ministry of Education, Hefei, 230032, China.
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Hu XW, Zhang MH, Cheng JY, Man RJ, Li DD. A berberrubine-derived fluorescent probe for hydrazine and its practical application in water and food samples. Anal Chim Acta 2021; 1172:338504. [PMID: 34119017 DOI: 10.1016/j.aca.2021.338504] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Revised: 03/24/2021] [Accepted: 04/05/2021] [Indexed: 01/28/2023]
Abstract
In this work, we attempted to develop a fluorescent probe for hydrazine in real samples. Accordingly, we designed BER9-HZ to fulfill the set rules as solubility, anti-interference capability and functional compatibility. The selected reporting group BER9 dissolved 100% within 10 min, which indicated much better solubility than Berberine. The 615 nm reporting signal was in the Near-Infrared region. BER9-HZ presented advantages including wide linear range (0-20 equivalent), high sensitivity (detection limit 0.076 μM), steadiness (pH 7.0-13.0, temperature 25-45 °C), rapid response (within 20 min) and high selectivity in both independent and co-existing systems. Significantly, BER9-HZ could work steadily in real environmental, plant and food samples, thus be used in the detection of hydrazine (directly incubated or pre-treated with real sample) in living cells. Therefore, this work marched one step further to the systematic managing of hydrazine in real samples, and raised useful information for future investigations on Nitrogen circulation.
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Affiliation(s)
- Xiao-Wei Hu
- School of Chemistry and Chemical Engineering, Linyi University, Linyi, Shandong, 276005, China.
| | - Mei-Hui Zhang
- School of Chemistry and Chemical Engineering, Linyi University, Linyi, Shandong, 276005, China
| | - Jia-Yi Cheng
- School of Chemistry and Chemical Engineering, Linyi University, Linyi, Shandong, 276005, China
| | - Ruo-Jun Man
- Guangxi Biological Polysaccharide Separation, Purification and Modification Research Platform, Guangxi University for Nationalities, Nanning, 530006, China.
| | - Dong-Dong Li
- College of Chemical Engineering, Nanjing Forestry University, 159 Longpan Road, Nanjing, 210037, China.
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Yu JT, Hu XW, Chen HY, Yang Q, Li HD, Dong YH, Zhang Y, Wang JN, Jin J, Wu YG, Li J, Ge JF, Meng XM. DNA methylation of FTO promotes renal inflammation by enhancing m 6A of PPAR-α in alcohol-induced kidney injury. Pharmacol Res 2021; 163:105286. [PMID: 33157234 DOI: 10.1016/j.phrs.2020.105286] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [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: 10/01/2020] [Revised: 10/25/2020] [Accepted: 10/26/2020] [Indexed: 12/15/2022]
Abstract
Alcohol consumption is one of the risk factors for kidney injury. The underlying mechanism of alcohol-induced kidney injury remains largely unknown. We previously found that the kidney in a mouse model of alcoholic kidney injury had severe inflammation. In this study, we found that the administration of alcohol was associated with the activation of NLRP3 inflammasomes and NF-κB signaling, and the production of pro-inflammatory cytokines. Whole-genome methylation sequencing (WGBS) showed that the DNA encoding fat mass and obesity-associated protein (FTO) was significantly methylated in the alcoholic kidney. This finding was confirmed with the bisulfite sequencing (BSP), which showed that alcohol increased DNA methylation of FTO in the kidney. Furthermore, inhibition of DNA methyltransferases (DNMTs) by 5-azacytidine (5-aza) reversed alcohol-induced kidney injury and decreased the mRNA and protein levels of FTO. Importantly, we found that FTO, the m6A demethylase, epigenetically modified peroxisome proliferator activated receptor-α (PPAR-α) in a YTH domain family 2 (YTHDF2)-dependent manner, which resulted in inflammation in alcoholic kidney injury models. In conclusion, our findings indicate that alcohol increases the methylation of PPAR-α m6A by FTO-mediated YTHDF2 epigenetic modification, which ultimately leads to the activation of NLRP3 inflammasomes and NF-κB-driven renal inflammation in the kidney. These findings may provide novel strategies for preventing and treating alcoholic kidney diseases.
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Affiliation(s)
- Ju-Tao Yu
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, The Key Laboratory of Anti-Inflammatory of Immune Medicines, Ministry of Education, Hefei, 230032, China
| | - Xiao-Wei Hu
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, The Key Laboratory of Anti-Inflammatory of Immune Medicines, Ministry of Education, Hefei, 230032, China
| | - Hai-Yong Chen
- School of Chinese Medicine, The University of Hong Kong, Hong Kong, China
| | - Qin Yang
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, The Key Laboratory of Anti-Inflammatory of Immune Medicines, Ministry of Education, Hefei, 230032, China
| | - Hai-Di Li
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, The Key Laboratory of Anti-Inflammatory of Immune Medicines, Ministry of Education, Hefei, 230032, China
| | - Yu-Hang Dong
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, The Key Laboratory of Anti-Inflammatory of Immune Medicines, Ministry of Education, Hefei, 230032, China
| | - Yao Zhang
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, The Key Laboratory of Anti-Inflammatory of Immune Medicines, Ministry of Education, Hefei, 230032, China
| | - Jia-Nan Wang
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, The Key Laboratory of Anti-Inflammatory of Immune Medicines, Ministry of Education, Hefei, 230032, China
| | - Juan Jin
- School of Basic Medicine, Anhui Medical University, Hefei, 230032, China
| | - Yong-Gui Wu
- Department of Nephrology, The First Affiliated Hospital of Anhui Medical University, Hefei, 230032, China
| | - Jun Li
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, The Key Laboratory of Anti-Inflammatory of Immune Medicines, Ministry of Education, Hefei, 230032, China
| | - Jin-Fang Ge
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, The Key Laboratory of Anti-Inflammatory of Immune Medicines, Ministry of Education, Hefei, 230032, China.
| | - Xiao-Ming Meng
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, The Key Laboratory of Anti-Inflammatory of Immune Medicines, Ministry of Education, Hefei, 230032, China.
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Hu XW, Liu H. [Advances in clinicopathological and genetic studies of mammary Paget's disease]. Zhonghua Bing Li Xue Za Zhi 2020; 49:653-657. [PMID: 32486553 DOI: 10.3760/cma.j.cn112151-20190919-00511] [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)
- X W Hu
- Department of Pathology, the Affiliated Lianyungang Oriental Hospital of Xuzhou Medical University, Lianyungang 222042, China
| | - H Liu
- Department of Pathology, the Affiliated Hospital of Xuzhou Medical University, Xuzhou 221006, China
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Zhou Y, Hu XW, Yang SJ, Yu Z. Knockdown of LncRNAZFAS1 suppresses cell proliferation and metastasis in non-small cell lung cancer. Anim Cells Syst (Seoul) 2020; 24:107-113. [PMID: 32489690 PMCID: PMC7241457 DOI: 10.1080/19768354.2020.1736623] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2020] [Revised: 02/24/2020] [Accepted: 02/25/2020] [Indexed: 12/24/2022] Open
Abstract
To evaluate the effects of LncRNAZFAS1 on cell proliferation and tumor metastasis in non-small cell lung cancer (NSCLC), we detected the expression level of LncRNAZFAS1 in NSCLC-related tissues and cells. qRT-PCR results revealed that LncRNAZFAS1 in tumor tissues was significantly higher than that in normal lung tissue, especially significantly up-regulated in stage III / IV and in metastatic NSCLC tissues. LncRNAZFAS1 expression was dramatically up-regulated in 4 NSCLC-related cells (A549, SPC-A1, SK-MES-1, and NCI-H1299), with having the highest expression level in A549 cells. Furthermore, we implemented a knockdown of LncRNAZFAS1 in A549 cells, and the results of CCK8 and Transwell assays suggested that knockdown of LncRNAZFAS1 significantly inhibited NSCLC cell proliferation and metastasis. Next, we constructed a tumor xenograft model to evaluate the effect of LncRNAZFAS1 on the NSCLC cell proliferation in vivo. The results indicated that knockdown of LncRNAZFAS1 dramatically inhibited A549 cells proliferation and repressed tumor growth. Additionally, knockdown of LncRNAZFAS1 drastically weakened the expressions of MMP2, MMP9 and Bcl-2 proteins, whereas noticeably strengthened the expression of BAX protein. Our results altogether suggest that knockdown of LncRNAZFAS1 has a negative effect on the proliferation and metastasis of NSCLC cell, which implying LncRNAZFAS1 is a potential unfavorable biomarker in patients with NSCLC.
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Affiliation(s)
- Yong Zhou
- Department of Respiratory Medicine, HwaMei Hospital, University Of Chinese Academy Of Sciences, Ningbo, People's Republic of China
| | - Xiao-Wei Hu
- Department of Respiratory Medicine, HwaMei Hospital, University Of Chinese Academy Of Sciences, Ningbo, People's Republic of China
| | - Si-Jia Yang
- Department of Respiratory Medicine, HwaMei Hospital, University Of Chinese Academy Of Sciences, Ningbo, People's Republic of China
| | - Zhe Yu
- Department of Respiratory Medicine, HwaMei Hospital, University Of Chinese Academy Of Sciences, Ningbo, People's Republic of China
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Li Y, Ma HY, Hu XW, Qu YY, Wen X, Zhang Y, Xu QY. LncRNA H19 promotes triple-negative breast cancer cells invasion and metastasis through the p53/TNFAIP8 pathway. Cancer Cell Int 2020; 20:200. [PMID: 32514245 PMCID: PMC7257135 DOI: 10.1186/s12935-020-01261-4] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Accepted: 05/12/2020] [Indexed: 12/15/2022] Open
Abstract
Background Long non-coding RNA H19 (lncRNA H19) has been implicated in tumorigenesis and metastasis of breast cancer through regulating epithelial to mesenchymal transition (EMT); however, the underlying mechanisms remain elusive. Methods LncRNA H19 and TNFAIP8 were identified by qRT-PCR and western blotting. CCK-8 assay, clone formation assay, transwell assay, and flow cytometry assay were performed to determine cell proliferation, migration, invasion and cell cycle of breast cancer respectively. Western blotting and immunohistochemistry (IHC) were utilized to evaluate the protein expression levels of p53, TNFAIP8, and marker proteins of EMT cascades in vivo. Dual luciferase reporter assay and RNA pull down assay were conducted to evaluate the interactions of lncRNA H19, p53 and TNFAIP8. Results The expression of lncRNA H19 and TNFAIP8 was up-regulated in breast cancer tissues and cell lines, especially in triple-negative breast cancer (TNBC). Functionally, knockdown of lncRNA H19 or TNFAIP8 coused the capacities of cell proliferation, migration, and invasion were suppressed, and cell cycle arrest was induced, as well as that the EMT markers were expressed abnormal. Mechanistically, lncRNA H19 antagonized p53 and increased expression of its target gene TNFAIP8 to promote EMT process. Furthermore, silencing of lncRNA H19 or TNFAIP8 also could inhibit tumorigenesis and lymph node metastases of MDA-MB-231 cells in xenograft nude mouse models. Conclusions Our findings provide insight into a novel mechanism of lncRNA H19 in tumorigenesis and metastases of breast cancer and demonstrate H19/p53/TNFAIP8 axis as a promising therapeutic target for breast cancer, especially for TNBC.
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Affiliation(s)
- Yang Li
- Department of Breast Radiotherapy, Harbin Medical University Cancer Hospital, No.150 Haping Road, Nangang District, Harbin, 150081 Heilongjiang People's Republic of China
| | - Hong-Yu Ma
- Department of Breast Radiotherapy, Harbin Medical University Cancer Hospital, No.150 Haping Road, Nangang District, Harbin, 150081 Heilongjiang People's Republic of China
| | - Xiao-Wei Hu
- Department of Head and Neck and Genito-Urinary Oncology, Harbin Medical University Cancer Hospital, Harbin, 150081 People's Republic of China
| | - Yuan-Yuan Qu
- Department of Breast Radiotherapy, Harbin Medical University Cancer Hospital, No.150 Haping Road, Nangang District, Harbin, 150081 Heilongjiang People's Republic of China
| | - Xin Wen
- Department of Ultrasound, Harbin Medical University Cancer Hospital, Harbin, 150081 People's Republic of China
| | - Yu Zhang
- Department of Breast Radiotherapy, Harbin Medical University Cancer Hospital, No.150 Haping Road, Nangang District, Harbin, 150081 Heilongjiang People's Republic of China
| | - Qing-Yong Xu
- Department of Breast Radiotherapy, Harbin Medical University Cancer Hospital, No.150 Haping Road, Nangang District, Harbin, 150081 Heilongjiang People's Republic of China
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Zou JY, Zhao WH, Chen JL, Du XK, Hu XW, Ye ZY. [The role of EBUS-TBNA in the systematic evaluation of lymph node staging and resectability analysis in non-small cell lung cancer]. Zhonghua Zhong Liu Za Zhi 2019; 41:792-795. [PMID: 31648504 DOI: 10.3760/cma.j.issn.0253-3766.2019.10.013] [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 evaluate the role of endobronchial ultrasound guided transbronchial needle aspiration (EBUS-TBNA) in lymph node staging and resectability assessment of patients with non-small cell lung cancer (NSCLC). Methods: The clinical data of 154 patients with NSCLC who underwent EBUS-TBNA from March 2015 to December 2018 were collected. All accessible mediastinal and hilar lymph nodes were systematically explored and punctured using EBUS-TBNA. EBUS-TBNA and CT were used for preoperative staging and resectability evaluation. Results: The sensitivity, specificity and accuracy of EBUS-TBNA were 94.2%, 100.0% and 96.0%, respectively, while those of CT were 89.9%, 31.8% and 72.0%, respectively. The differences were statistically significant (P<0.05). The sensitivity, specificity and accuracy of EBUS-TBNA in lymph nodes with short diameter less than 15 mm were 92.4%, 100.0% and 96.0%, respectively, while those of CT were 80.7%, 34.8% and 60.1%, respectively, with statistical differences (P<0.05). The staging of 62 patients was changed, 27 cases were up-regulated and 35 cases were down-regulated. Among them, 32 cases had been changed to resectable. The evaluating resectability of EBUS-TBNA showed excellent consistency with that of pathological results (Kappa=0.95). The sensitivity and specificity were 100.0% and 97.2%, respectively. Conclusion: EBUS-TBNA can systemically evaluate the metastatic status of NSCLC patients and improve the accuracy of preoperative lymph node staging and resectability assessment.
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Affiliation(s)
- J Y Zou
- Department of Respiratory and Critical Care, Huamei Hospital of University of Chinese Academy of Science, Ningbo 315010, China
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Wu FL, Chen HL, Hu XW, Liang LY, Xu WL. [Wnt5a modulates vincristine resistance through PI3K/Akt/GSK3β signaling pathway in human ovarian carcinoma SKOV3/VCR cells]. Sheng Li Xue Bao 2019; 71:415-423. [PMID: 31218332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The aim of this study was to investigate the effect of Wnt5a on the vincristine (VCR) resistance in human ovarian carcinoma SKOV3 cells and its possible mechanism. The drug-resistant SKOV3/VCR cells were established by stepwise exposure to VCR, and then the SKOV3/VCR cells were stably transfected with specific shRNA interference plasmid vector targeting for Wnt5a. The mRNA expression level of Wnt5a was measured by RT-PCR. CCK-8 assay was used to detect the cell viability of SKOV3/VCR cells. The apoptosis was analyzed by flow cytometry. The protein expression levels of Wnt5a, MDR1, Survivin, β-catenin, Akt, p-Akt(S473), GSK3β and p-GSK3β(Ser9) were detected by Western blot. The result showed that SKOV3/VCR cells had significantly higher protein expression levels of Wnt5a, MDR1, Survivin and β-catenin, phosphorylation levels of Akt and GSK3β, and mRNA expression level of Wnt5a, compared with SKOV3 cells (P < 0.05). WNT5A gene silencing significantly increased the sensitivity of SKOV3/VCR cells to VCR, the IC50 of VCR being decreased from 38.412 to 9.283 mg/L (P < 0.05), synergistically enhanced VCR-induced apoptosis of SKOV3/VCR cells (P < 0.05), down-regulated the protein expression levels of MDR1, β-catenin and Survivin (P < 0.05), and inhibited phosphorylation of Akt and GSK3β (P < 0.05). Meanwhile, LY294002 (PI3K inhibitor) decreased the protein expression levels of MDR1, β-catenin and Survivin, as well as the phosphorylation levels of Akt and GSK3β in SKOV3/VCR cells (P < 0.05). These results suggest that WNT5A gene silencing reverses VCR resistance in SKOV3/VCR cells possibly through blocking the PI3K/Akt/GSK3β/β-catenin signaling pathway, and thus down-regulating the protein expression levels of MDR1 and Survivin.
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Affiliation(s)
- Feng-Lan Wu
- Department of Medicine, Luohe Medical College, Luohe 462002, China
| | - Hong-Lian Chen
- Department of Medicine, Luohe Medical College, Luohe 462002, China
| | - Xiao-Wei Hu
- Department of Medicine, Luohe Medical College, Luohe 462002, China
| | - Li-Ying Liang
- Department of Medicine, Luohe Medical College, Luohe 462002, China
| | - Wan-Ling Xu
- Department of Medicine, Luohe Medical College, Luohe 462002, China.
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Hu XW, Xu KF. [Introduction of 2017 clinical guidelines for lymphangioleiomyomatosis from American Thoracic Society and Japanese Respiratory Society]. Zhonghua Jie He He Hu Xi Za Zhi 2019; 42:98-100. [PMID: 30704180 DOI: 10.3760/cma.j.issn.1001-0939.2019.02.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
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Xu L, Hu XW, Zhang SH, Li JM, Zhu H, Xu K, Chen J, Li CJ. Intensified Antiplatelet Treatment Reduces Major Cardiac Events in Patients with Clopidogrel Low Response: A Meta-analysis of Randomized Controlled Trials. Chin Med J (Engl) 2017; 129:984-91. [PMID: 27064045 PMCID: PMC4831535 DOI: 10.4103/0366-6999.179786] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
BACKGROUND Clopidogrel low response (CLR) is an independent risk factor of adverse outcomes in patients undergoing percutaneous coronary intervention (PCI), and intensified antiplatelet treatments (IAT) guided by platelet function assays might overcome laboratory CLR. However, whether IAT improves clinical outcomes is controversial. METHODS Relevant trials were identified in PubMed, the Cochrane Library, and the Chinese Medical Journal Network databases from their establishment to September 9, 2014. Trials were screened using predefined inclusion criteria. Conventional meta-analysis and cumulative meta-analysis were performed using the Review Manager 5.0 and STATA 12.0 software programs. RESULTS Thirteen randomized controlled trials involving 5111 patients with CLR were recruited. During a follow-up period of 1-12 months, the incidences of cardiovascular (CV) death, nonfatal myocardial infarction (MI), and stent thrombosis were significantly lower in the IAT arm than in the conventional antiplatelet treatment arm (relative risk [RR] = 0.45, 95% confidence interval [CI]: 0.36-0.57, P < 0.000,01), whereas bleeding was similar between the two arms (RR = 1.05, 95% CI: 0.86-1.27, P = 0.65). CONCLUSIONS IAT guided by platelet function assays reduces the risk of CV death, nonfatal MI, and stent thrombosis (ST) without an increased risk of bleeding in patients undergoing PCI and with CLR.
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Affiliation(s)
| | | | | | | | | | | | | | - Chun-Jian Li
- Department of Cardiology, First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210000, China
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Hu XW, Liu S, Qu BT, You XZ. Starfish-shaped Co3O4/ZnFe2O4 Hollow Nanocomposite: Synthesis, Supercapacity, and Magnetic Properties. ACS Appl Mater Interfaces 2015; 7:9972-9981. [PMID: 25877380 DOI: 10.1021/acsami.5b02317] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
A novel starfish-shaped porous Co3O4/ZnFe2O4 hollow nanocomposite was fabricated for the first time by a facile and stepwise hydrothermal approach, utilizing metal-organic frameworks as precursors and sacrificial templates. The morphology evolution in the synthetic process upon reaction time and amount of raw materials were investigated in detail. The as-synthesized starfish-shaped porous Co3O4/ZnFe2O4 composites were studied as an electrode material for supercapacitors showing good capacitive performances. Their specific capacitance can reach as high as 326 F g(-1) at 1 A g(-1). The rational combination of components with different potential windows in a composite material enables a wide overall potential range resulting in the highest energy density of 82.5 Wh kg(-1), significantly larger than that of the single components. Magnetic measurements show that the system presents a large coercivity and high squareness (at 1.8 K, Hc = 884 Oe and Mr/Ms = 0.52) with respect to the individual components, which may be attributed to the unique morphology of Co3O4/ZnFe2O4, as well as surface and interface exchange coupling effects. Materials with this novel design and fabrication may show promise for potential applications in electrochemical energy storage and magnetic devices.
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Affiliation(s)
- Xiao-Wei Hu
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, P. R. China
| | - Sheng Liu
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, P. R. China
| | - Bo-Tao Qu
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, P. R. China
| | - Xiao-Zeng You
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, P. R. China
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Liu PZ, Hu XW, Mao CJ, Niu HL, Song JM, Jin BK, Zhang SY. Electrochemiluminescence immunosensor based on graphene oxide nanosheets/polyaniline nanowires/CdSe quantum dots nanocomposites for ultrasensitive determination of human interleukin-6. Electrochim Acta 2013. [DOI: 10.1016/j.electacta.2013.09.074] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Yan PC, Zhang XY, Hu XW, Zhang B, Zhang XD, Zhao M, Che DQ, Li YQ, Zhou QL. Corrigendum to ‘First asymmetric synthesis of Silodosin through catalytic hydrogenation by using Ir-SIPHOX catalysts’ [Tetrahedron Lett. 54 (2013), 1449–1451]. Tetrahedron Lett 2013. [DOI: 10.1016/j.tetlet.2013.06.120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Abstract
Diffuse large B-cell lymphoma (DLBCL) usually present with rapidly growing lymph nodes or extra-nodal masses. Central nerve system involvement and pregnancy are rare in DLBCL. Here, we report an unusual case of DLBCL with cavernous sinus syndrome during pregnancy. A 24-year-old woman presented cavernous sinus syndrome as the initial presentation during pregnancy. Magnetic resonance imaging (MRI) revealed enlargement of bilateral cavernous sinus. Tonsil and ovary biopsy indicated malignant lymphoma-DLBCL. Bone marrow smear showed infiltration by tumor cells. The case delivered a viable baby by cesarean section and then took chemotherapy of rituxan, cyclophosphamide, adriamycin, eldisine and dexamethasone. The disease deteriorated rapidly, especially after the pregnancy was terminated. Fortunately, a complete response was achieved after six cycles of chemotherapy. With the accumulation of clinical practice of such cases, we would be able to recognize minimal symptoms of DLBCL at the beginning and confirm the most suitable timing of the initiation of chemotherapy during pregnancy.
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Affiliation(s)
- Juan Wang
- Department of Gynaecology and Obstetrics, the First Affiliated Hospital of Soochow University, Suzhou, China
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Feng XD, Zhuang G, Yang ZJ, Gao L, Hu XW. Design and implementation of a 150 GHz single-channel millimeter wave interferometer on Joint TEXT tokamak. Rev Sci Instrum 2013; 84:044705. [PMID: 23635218 DOI: 10.1063/1.4802690] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
A simple, single-channel millimeter-wave interferometer system has been designed, fabricated, and installed on the J-TEXT tokamak. For the plasma density anticipated on J-TEXT, a solid-state source operating at 150 GHz has been chosen to minimize errors due to both vibration along the beam path and refraction in the plasma. The new aspect of the interferometer design is to use a subharmonic mixer for detection with a frequency doubled 150 GHz source. It employs a single source which is bias-tuned and modulated with a sawtooth wave form up to 100 kHz in order to generate the intermediate frequency. The 12.5 GHz voltage-controlled oscillator is multiplied to 75 GHz before a final doubler raises it to 150 GHz. A portion of the 75 GHZ power is used for the local oscillator (LO) and is directly connected to the LO input of the subharmonic mixer. The phase is evaluated by a digital phase comparator using a software-based algorithm. Detection noise limits the minimum resolvable phase change with the interferometer to ±0.05 fringe, which corresponds to an averaged electron density change along the chord of ±1.1 × 10(17) m(-2). The maximum measurable electron density is expected to be ∼9 × 10(19) m(-3). A comparison of preliminary results from the millimeter wave interferometer with that from the far-infrared hydrogen cyanide laser (wavelength of 337 μm) interferometer shows good agreement during the pulse flat-top period. The millimeter wave interferometer system will be used as a part of the density feedback control system in the future.
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Affiliation(s)
- X D Feng
- State Key Laboratory of Advanced Electromagnetic Engineering and Technology, Huazhong University of Science and Technology, Wuhan 430074, China
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Yan PC, Zhang XY, Hu XW, Zhang B, Zhang XD, Zhao M, Che DQ, Li YQ, Zhou QL. First asymmetric synthesis of Silodosin through catalytic hydrogenation by using Ir-SIPHOX catalysts. Tetrahedron Lett 2013. [DOI: 10.1016/j.tetlet.2013.01.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Hu XW, Mao CJ, Song JM, Niu HL, Zhang SY, Huang HP. Fabrication of GO/PANi/CdSe nanocomposites for sensitive electrochemiluminescence biosensor. Biosens Bioelectron 2013; 41:372-8. [DOI: 10.1016/j.bios.2012.08.054] [Citation(s) in RCA: 76] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2012] [Revised: 08/18/2012] [Accepted: 08/29/2012] [Indexed: 11/25/2022]
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Zhang XW, Liu ZH, Hu XW, Yuan YQ, Bai WJ, Wang XF, Shen H, Zhao YP. Androgen replacement therapy improves psychological distress and health-related quality of life in late onset hypogonadism patients in Chinese population. Chin Med J (Engl) 2012; 125:3806-3810. [PMID: 23106878] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/01/2023] Open
Abstract
BACKGROUND Late onset hypogonadism negatively impacts on men's psychological well-being. This study was conducted to examine the interrelationship among symptoms of testosterone deficiency, psychological well-being, and quality of life. METHODS Eligible subjects were randomized into active treatment and control groups, and were asked to complete the following questionnaires at baseline and month 6: aging male's symptoms (AMS) rating scale, hospital anxiety and depression scale (HADS), perceived stress scale (PSS) and the short form health survey-12 (SF-12). In this study, men were treated and monitored for 6 months with oral testosterone undecanoate (TU) capsules or vitamin E/C capsules in a single-blinded fashion. All in the active treatment group were administered a total of 120 - 160 mg TU orally on a daily basis. Total and free T levels between baseline and month 6 were compared. RESULTS One hundred and sixty eligible subjects were recruited and followed up. In the active treatment group, total serum testosterone concentrations before and after intervention were (7.98 ± 0.73) nmol/L and (13.7 ± 1.18) nmol/L. The mean HADS anxiety subscale scores for the subjects at baseline and at month 6 were 3.47 ± 0.4 and 1.72 ± 0.2, respectively (t = 1.526, P < 0.05). Additionally, the mean HADS depression subscale scores were 4.91 ± 0.6 and 2.39 ± 0.3, respectively (t = 3.466, P < 0.05). The mean scores on PSS for the subjects at baseline and at month 6 were 12.88 ± 2.1 and 9.83 ± 1.7, respectively (t = 4.009, P < 0.05). Significantly improved SF-12 could be observed (t = 1.433 and 1.118, respectively; both P < 0.05). No significant changes were observed in the control group at month 6. CONCLUSION Androgen replacement not only improves androgen deficiency associated symptoms, but also enhances comprehensive improvement in psychological issues.
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Affiliation(s)
- Xiao-Wei Zhang
- Department of Urology, Peking University People's Hospital, Beijing 100044, China
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Hu XW, Mao CJ, Song JM, Niu HL, Zhang SY, Cui RJ. Direct electrochemistry and electrocatalytic behavior of hemoglobin entrapped in Ag@C nanocables/gold nanoparticles nanocomposites film. J Nanosci Nanotechnol 2012; 12:7980-7985. [PMID: 23421167 DOI: 10.1166/jnn.2012.6636] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Direct electrochemistry of hemoglobin (Hb) was successfully fabricated by immobilizing Hb on the nanocomposites containing of Ag@C nanocables and Au nanoparticles (AuNPs) modified glassy carbon electrode (GCE). The immobilized Hb retained its biological activity and shown high catalytic activities to the reduction of H2O2 by circular dicroism (CD) spectrum, fourier transform infrared (FT-IR) spectrum and cyclic voltammetry (CV). Experimental conditions such as scan rate and pH Value were studied and optimized. The results indicated that the resulting biosensor are linear to the concentrations of H2O2 in the ranges of 6.67 x 10(-7)-2.40 x 10(5) M, and the detection limit is 2.02 x 10(-7) M. The electrochemical biosensor has also high stability and good reproducibility.
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Affiliation(s)
- Xiao-Wei Hu
- School of Chemistry and Chemical Engineering, Anhui University, Hefei 230039, China
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Mao CJ, Hu XW, Song JM, Niu HL, Zhang SY. Synthesis of zinc 1-(2-pyridylazo)-2-naphthol (Zn(PAN)2) nanobelts with nonlinear optical property. CrystEngComm 2012. [DOI: 10.1039/c2ce25853f] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Quirk RP, Yin J, Guo SH, Hu XW, Summers G, Kim J, Zhu LF, Schock LE. Anionic synthesis of chain-end functionalized polymers. ACTA ACUST UNITED AC 2011. [DOI: 10.1002/masy.19900320106] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Ablikim M, Achasov MN, An L, An Q, An ZH, Bai JZ, Ban Y, Berger N, Bian JM, Boyko I, Briere RA, Bytev V, Cai X, Cao GF, Cao XX, Chang JF, Chelkov G, Chen G, Chen HS, Chen JC, Chen LP, Chen ML, Chen P, Chen SJ, Chen YB, Chu YP, Cronin-Hennessy D, Dai HL, Dai JP, Dedovich D, Deng ZY, Denysenko I, Destefanis M, Ding Y, Dong LY, Dong MY, Du SX, Duan MY, Fang J, Feng CQ, Fu CD, Fu JL, Gao Y, Geng C, Goetzen K, Gong WX, Greco M, Grishin S, Gu YT, Guo AQ, Guo LB, Guo YP, Han SQ, Harris FA, He KL, He M, He ZY, Heng YK, Hou ZL, Hu HM, Hu JF, Hu T, Hu XW, Huang B, Huang GM, Huang JS, Huang XT, Huang YP, Ji CS, Ji Q, Ji XB, Ji XL, Jia LK, Jiang LL, Jiang XS, Jiao JB, Jin DP, Jin S, Komamiya S, Kuehn W, Lange S, Leung JKC, Li C, Li C, Li DM, Li F, Li G, Li HB, Li J, Li JC, Li L, Li L, Li QJ, Li WD, Li WG, Li XL, Li XN, Li XQ, Li XR, Li YX, Li ZB, Liang H, Liang TR, Liang YT, Liang YF, Liao GR, Liao XT, Liu BJ, Liu CL, Liu CX, Liu CY, Liu FH, Liu F, Liu F, Liu GC, Liu H, Liu HB, Liu HM, Liu HW, Liu J, Liu JP, Liu K, Liu KY, Liu Q, Liu SB, Liu XH, Liu YB, Liu YF, Liu YW, Liu Y, Liu ZA, Lu GR, Lu JG, Lu QW, Lu XR, Lu YP, Luo CL, Luo MX, Luo T, Luo XL, Ma CL, Ma FC, Ma HL, Ma QM, Ma X, Ma XY, Maggiora M, Mao YJ, Mao ZP, Min J, Mo XH, Muchnoi NY, Nefedov Y, Ning FP, Olsen SL, Ouyang Q, Pelizaeus M, Peters K, Ping JL, Ping RG, Poling R, Pun CSJ, Qi M, Qian S, Qiao CF, Qiu JF, Rong G, Ruan XD, Sarantsev A, Shao M, Shen CP, Shen XY, Sheng HY, Sonoda S, Spataro S, Spruck B, Sun DH, Sun GX, Sun JF, Sun SS, Sun XD, Sun YJ, Sun YZ, Sun ZJ, Sun ZT, Tang CJ, Tang X, Tang XF, Tian HL, Toth D, Varner GS, Wan X, Wang BQ, Wang JK, Wang K, Wang LL, Wang LS, Wang P, Wang PL, Wang Q, Wang SG, Wang XD, Wang XL, Wang YD, Wang YF, Wang YQ, Wang Z, Wang ZG, Wang ZY, Wei DH, Wen SP, Wiedner U, Wu LH, Wu N, Wu W, Wu YM, Wu Z, Xiao ZJ, Xie YG, Xu GF, Xu GM, Xu H, Xu M, Xu M, Xu XP, Xu Y, Xu ZZ, Xue Z, Yan L, Yan WB, Yan YH, Yang HX, Yang M, Yang P, Yang SM, Yang YX, Ye M, Ye MH, Yu BX, Yu CX, Yu L, Yuan CZ, Yuan Y, Zeng Y, Zhang BX, Zhang BY, Zhang CC, Zhang DH, Zhang HH, Zhang HY, Zhang JW, Zhang JY, Zhang JZ, Zhang L, Zhang SH, Zhang XY, Zhang Y, Zhang YH, Zhang ZP, Zhao C, Zhao HS, Zhao J, Zhao J, Zhao L, Zhao L, Zhao MG, Zhao Q, Zhao SJ, Zhao TC, Zhao XH, Zhao YB, Zhao ZG, Zhemchugov A, Zheng B, Zheng JP, Zheng YH, Zheng ZP, Zhong B, Zhong J, Zhou L, Zhou ZL, Zhu C, Zhu K, Zhu KJ, Zhu QM, Zhu XW, Zhu YS, Zhu ZA, Zhuang J, Zou BS, Zou JH, Zuo JX, Zweber P. Measurements of h(c)(1P(1)) in psi' decays. Phys Rev Lett 2010; 104:132002. [PMID: 20481873 DOI: 10.1103/physrevlett.104.132002] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2010] [Indexed: 05/29/2023]
Abstract
We present measurements of the charmonium state h(c)(1P(1)) made with 106x10(6) psi' events collected by BESIII at BEPCII. Clear signals are observed for psi'-->pi0 h(c) with and without the subsequent radiative decay h(c)-->gamma eta(c). First measurements of the absolute branching ratios B(psi'-->pi0 h(c)) = (8.4+/-1.3+/-1.0) x 10(-4) and B(h(c)-->gamma eta(c)) = (54.3+/-6.7+/-5.2)% are presented. A statistics-limited determination of the previously unmeasured h(c) width leads to an upper limit Gamma(h(c))<1.44 MeV (90% confidence). Measurements of M(h(c)) = 3525.40+/-0.13+/-0.18 MeV/c2 and B(psi'-->pi0 h(c)) x B(h(c)-->gamma eta(c)) = (4.58+/-0.40+/-0.50) x 10(-4) are consistent with previous results.
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Affiliation(s)
- M Ablikim
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
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Yao JH, Zhang XS, Zheng SS, Li YH, Wang LM, Wang ZZ, Chu L, Hu XW, Liu KX, Tian XF. Prophylaxis with carnosol attenuates liver injury induced by intestinal ischemia/reperfusion. World J Gastroenterol 2009; 15:3240-5. [PMID: 19598299 PMCID: PMC2710779 DOI: 10.3748/wjg.15.3240] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To investigate the possible protective effects of carnosol on liver injury induced by intestinal ischemia reperfusion (I/R).
METHODS: Rats were divided randomly into three experimental groups: sham, intestinal I/R and carnosol treatment (n = 18 each). The intestinal I/R model was established by clamping the superior mesenteric artery for 1 h. In the carnosol treatment group, surgery was performed as in the intestinal I/R group, with intraperitoneal administration of 3 mg/kg carnosol 1 h before the operation. At 2, 4 and 6 h after reperfusion, rats were killed and blood, intestine and liver tissue samples were obtained. Intestine and liver histology was investigated. Serum levels of aspartate aminotransferase (AST), alanine aminotransferase (ALT) and interleukin (IL)-6 were measured. Liver tissue superoxide dismutase (SOD) and myeloperoxidase (MPO) activity were assayed. The liver intercellular adhesion molecule-1 (ICAM-1) and nuclear factor κB (NF-κB) were determined by immunohistochemical analysis and western blot analysis.
RESULTS: Intestinal I/R induced intestine and liver injury, characterized by histological changes, as well as a significant increase in serum AST and ALT levels. The activity of SOD in the liver tissue decreased after I/R, which was enhanced by carnosol pretreatment. In addition, compared with the control group, carnosol markedly reduced liver tissue MPO activity and serum IL-6 level, which was in parallel with the decreased level of liver ICAM-1 and NF-κB expression.
CONCLUSION: Our results indicate that carnosol pretreatment attenuates liver injury induced by intestinal I/R, attributable to the antioxidant effect and inhibition of the NF-κB pathway.
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Nolan LA, Hart EJ, Windle RJ, Wood SA, Hu XW, Levi AJ, Ingram CD, Levy A. Lack of effect of protein deprivation-induced intrauterine growth retardation on behavior and corticosterone and growth hormone secretion in adult male rats: a long-term follow-up study. Endocrinology 2001; 142:2996-3005. [PMID: 11416021 DOI: 10.1210/endo.142.7.8248] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
To further define the neuroendocrine consequences of intrauterine growth retardation (IUGR), we have used a rat model of maternal protein restriction throughout pregnancy to examine the pattern of corticosterone and GH secretion under basal conditions and in response to psychological stress in male offspring at 4, 9, and 18 months of age. The findings were correlated with studies of behavioral activity. Despite a consistent reduction in birth weight and failure of catch-up growth, there were no significant differences in GH secretory profiles between IUGR and control rats at any age. We were unable to demonstrate a difference in the number, amplitude, length, or area of corticosterone secretory pulses between control and IUGR animals; although again, there was a significant decrease with age. The mean peak plasma concentration of corticosterone in response to a noise stress also declined with age but was unaffected by IUGR. There were no consistent, statistically significant differences in behavioral responses between normal control and IUGR animals or between groups of animals at different ages. These results do not, therefore, support the presence of major functional abnormalities in either GH or corticosterone secretory responses in adult male rats subjected to IUGR.
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Affiliation(s)
- L A Nolan
- University Research Centre for Neuroendocrinology, University of Bristol, Bristol Royal Infirmary, Bristol BS2 8HW, United Kingdom
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Hu XW, Levy A, Hart EJ, Nolan LA, Dalton GR, Levi AJ. Intra-uterine growth retardation results in increased cardiac arrhythmias and raised diastolic blood pressure in adult rats. Cardiovasc Res 2000; 48:233-43. [PMID: 11054470 DOI: 10.1016/s0008-6363(00)00167-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
OBJECTIVES Epidemiological evidence in humans suggests that intrauterine growth retardation is associated with an increased risk of hypertension and coronary heart disease in later life. To begin to understand the mechanisms involved, we developed and exploited a rat model of intrauterine growth retardation to assess predisposition to arrhythmias and resting blood pressure levels at defined ages from 4 to 18 months. METHODS Isolated working heart experiments were carried out on rats that had been subjected to intrauterine growth retardation by prenatal protein deprivation and age-matched male Wistar controls to measure susceptibility to wall stress-induced arrhythmias. In addition, resting systolic and diastolic blood pressures were measured in conscious rats via an indwelling arterial catheter. RESULTS Hearts from intrauterine growth retarded animals showed significantly more ventricular premature beats and more episodes of ventricular tachycardia at all ages examined (4, 9 and 18 months), and at 4 and 18 months, a reduction in coronary blood flow. Diastolic pressure was significantly raised by intrauterine growth retardation in both groups examined (4 and 9 months). CONCLUSIONS Protein malnutrition during the intrauterine period results in profound intrauterine growth retardation that is associated with a raised diastolic blood pressure and an increased predisposition to cardiac arrhythmias in later life. These results are consistent with epidemiological observations made in human populations, and as similar pathophysiological changes may operate in both situations, intrauterine protein deprivation may be a useful model to help define some of the mechanisms involved.
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Affiliation(s)
- X W Hu
- Division of Medicine, University of Bristol, BS2 8HT, Bristol, UK
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Hu XW, Xiao CZ, Li ZH, Guo ZX, Gao LH, Zhang ZG, Xu ZP, Wang F. [Production of u-PA with rCHO cell culture on porous microcarriers in serum-free growth medium]. Sheng Wu Gong Cheng Xue Bao 2000; 16:387-91. [PMID: 11059287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
Abstract
A novel technique was developed to deal with apoptosis in large-scale animal cell culture. By means of replacing part of Cytopore porous microcarriers at regular intervals, a rCHO cell line, which produces urokinase-type plasminogen activitor(u-PA), was cultivated continuously with serum-free medium in a 30 L stirred tank for 91 days. The cell density was maintained at (1.3-2.6) x 10(7)/mL, and > 90% of cells was viable. In order to reduce the effect of cell density on cell growth and expression, a cyclic pressure oscillation was exerted on a 7.5 L reactor headspace to enhance cell expression at high cell density to a certain extent. During the 67 days of medium-replacement culture, the maximal cell density reached 2.64 x 10(7)/mL, and cell viability was always kept above 95% when combined with microcarrier-replacement. Compare to control culture, culture with cyclic pressure oscillation could enhance cell expression level and reduce the ratio of glucose metabolized anaerobically to produce lactate. With four-step purification process, about 80 g u-PA(approximately 90% scu-PA) was recovered from approximately 2100 liters supernatant which contained approximately 135 g u-PA.
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Affiliation(s)
- X W Hu
- Institute of Biotechnology, Academy of Military Medical Sciences, Beijing
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Abstract
Acid extracts of rat tail tendon were subjected to reverse dialysis against 0.5% PEG at 4 degrees C in an attempt to induce liquid crystallization. After 48 h, gel and fibril formation were initiated by continuing dialysis at 20 degrees C against the same PEG solution adjusted to pH 7.4. The inclusion of calcium- or magnesium chloride (final concentration 0.3-33 mM) in the collagen solution before dialysis resulted in strongly birefringent gels that showed a progressive rotation of the slow axis of birefringence with increasing distance from the lateral margin of the gel. The gels contained fibers running predominantly in the plane of the flattened gel and crossing at angles of between 55 degrees and 90 degrees. We suggest that liquid crystallization is responsible for this phenomenon and that it might be possible to exploit this to produce materials for tissue engineering.
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Affiliation(s)
- D P Knight
- Collagen Research Group, King Alfred's College, Winchester, United Kingdom
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Fu SG, Deng ZF, Huang CJ, Hu XW. [Pressor effect of substance P applied to the pressor area of ventral surface of medulla oblongata and the underlying mechanism in rabbits]. Sheng Li Xue Bao 1997; 49:273-80. [PMID: 9812811] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
Abstract
Experiments were performed on urethane anesthetized and artificially ventilated rabbits. The results were as follows. Application of substance P (SP) to the pressor area of ventral surface of medulla oblongata (VSMp) elicited a dose-dependent increase in blood pressure (BP), but no significant change in heart rate. The pressor response of SP was blocked by pretreatment with SP receptor antagonist (DSP) in VSMp. Application of DSP alone to VSMp elicited a significant decrease in BP. The pressor response of SP was attenuated when VSMp was pretreated with phentolamine or prazosine, whereas pretreatment with yohimbin or propranolol was without effect. Application of SP to VSMp elicited an increase in renal sympathetic nerve discharge (RSND) in association with pressor response; both these responses were blocked by pretreatment with DSP in VSMp. Application of DSP alone to VSMp elicited a significant decrease in RSND and BP. The above results indicate that SP has a pressor effect in VSMp due to activation of SP receptor mediated by alpha 1-receptor. The pressor effect of SP may be mainly due to an increase of peripheral vascular resistance induced by the augmented sympathetic nerve activity. In summary, it appears that endogenous SP in VSMp plays an important role in maintaining sympathetic tone and BP level.
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Affiliation(s)
- S G Fu
- Department of Physiology, Hainan Medical College, Haikou
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Hu XW, Knight DP, Chapman JA. The effect of non-polar liquids and non-ionic detergents on the ultrastructure and assembly of rat tail tendon collagen fibrils in vitro. Biochim Biophys Acta 1997; 1334:327-37. [PMID: 9101729 DOI: 10.1016/s0304-4165(96)00112-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Non-ionic detergents or emulsions of non-polar liquids when added to solutions of rat tail tendon collagen (RTTC) or to the dispersed fibrils produced similar conspicuous ultrastructural modifications in the form of a D-periodic lesion between bands c2 and d in the 'gap region' of the fibril close to the start of the overlap region. The size and extent of the lesion in some fibrils indicates that at least some of the collagen molecules rupture. In an attempt to detect peptide fragments produced in this way we ran SDS-PAGE gels of collagen fibrils treated with the non-ionic detergent Triton X-100. These contained two peptides (44 and 32 kDa) not seen in controls. The lesions are thought to result from interactions between the hydrophobic part of non-polar liquids or detergents with an anomalous part of the fibril's D-period. The anomalous region has a high concentration of hydrophobic and alanyl residues but exceptionally few charged and hydroxyproline ones. We suggest that the anomalous region may play a part in storing and dissipating strain energy and permitting cross-link formation. Similar collagen-lipid interactions may occur under pathological conditions.
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Affiliation(s)
- X W Hu
- Department of Biological Science, King Alfred's College, Winchester, UK
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Hu XW, Knight DP, Grant RA. The effect of deamination and/or blocking arginine residues on the molecular assembly of acid-extracted rat tail tendon collagen. Tissue Cell 1996; 28:215-22. [PMID: 8650674 DOI: 10.1016/s0040-8166(96)80009-7] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
We describe the effect of deamination of lysine and blocking of arginine residues on the assembly of collagen into native fibrils and SLS aggregates. Treatment of collagen solutions with one or both of these procedures does not prevent the formation of fibrils or SLS aggregates but reduces their ability to form assemblies with accurate longitudinal registration. These observations provide direct confirmation that hydrophobic interactions are important in collagen assembly. Unbanded fibrils were formed within the first 24 h at 4 degrees C from both acidic and neutralized deaminated and from neutralized control collagen solutions, transversely banded fibrils appearing later. This is compatible with the suggestion that initially, collagen fibrils are assembled by lyotropic liquid crystallization and with other observations which suggest that collagen molecules are initially free to move laterally within the fibril before being locked into place. Fibrils assembled from deaminated collagen solution show two variant longitudinal registration patterns which grade into one another. This suggests that, with a reduction in positively charged side chains, the thermodynamic energy minima responsible for longitudinal registration are less sharp compared with control collagen solutions. Reduction of positive charge by chemical modification helps to explain why the chemical modifications reduce swelling of collagen fibres. It also helps to explain why fibrils form spontaneously at 4 degrees C in both arginine-blocked and deaminated collagen solutions. Thus chemical modifications of rat tail tendon provides new insight into the mechanisms in collagen assembly.
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Affiliation(s)
- X W Hu
- Department of Biological Science, King Alfred's College, Winchester, UK
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Quirk RP, Yin J, Guo SH, Hu XW, Summers GJ, Kim J, Zhu LF, Ma JJ, Takizawa T, Lynch T. Recent Advances in Anionic Synthesis of Functionalized Polymers. Rubber Chemistry and Technology 1991. [DOI: 10.5254/1.3538580] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Abstract
There has been growing interest and research on new synthetic methods for the preparation of well-defined polymers with in-chain and chain-end functional groups. These functional groups in polymers can participate in (a) reversible ionic association; (b) chain extension, branching or crosslinking reactions with polyfunctional reagents; (c) coupling and linking with reactive groups on other oligomer or polymer chains; and (d) initiation of polymerization of other monomers. It is noteworthy that the use of end-functionalized polybutadienes formed by reaction of poly(butadienyl)lithium with 4,4′-bis(diethylamino)-benzophenone has been reported to provide marked improvements in the wear and traction properties of tires. In order to exploit the unique potential of functionalized polymers, it is important to consider the scope and limitations of current functionalization methodology using anionic polymerization. Anionic polymerization approaches the goal of synthesizing polymers with predictable, well-defined structures in certain systems such as diene, styrene, methacrylate, and heterocyclic monomers, which proceed in the absence of chain termination and chain transfer reactions. These living polymerizations generate stable, anionic polymer chain ends when all of the monomer has been consumed. In principle, these anionic chain ends can react with a variety of electrophilic species to generate a diverse array of functional groups. Unfortunately, many of the reported functionalization reactions have not been well characterized. Another limitation of the use of specific electrophilic functionalization reactions is the necessity of developing, optimizing, and characterizing new procedures for each different functional group. Variables such as chain-end structure, solvent, temperature, concentration, stoichiometry, mode of addition of reagents, and polar additives can have dramatic effects on yield and product distributions. This review will first provide a critical overview of some recent developments in the use of specific functionalization reactions to prepare polymers labeled with carboxyl, hydroxyl, amino, and sulfonate end groups via alkyllithium-initiated polymerization methods. In addition, a recently developed methodology will be described which utilizes the addition reactions of organolithium compounds to substituted 1,1-diphenylethylenes as a general, quantitative functionalization reaction, independent of the specific functional group.
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Affiliation(s)
- Roderic P. Quirk
- 1Institute of Polymer Science, The University of Akron, Akron, Ohio 44325-3909
| | - Jian Yin
- 1Institute of Polymer Science, The University of Akron, Akron, Ohio 44325-3909
| | - Shao-Hua Guo
- 1Institute of Polymer Science, The University of Akron, Akron, Ohio 44325-3909
| | - Xiao-Wei Hu
- 1Institute of Polymer Science, The University of Akron, Akron, Ohio 44325-3909
| | - Gabriel J. Summers
- 1Institute of Polymer Science, The University of Akron, Akron, Ohio 44325-3909
| | - Jungahn Kim
- 1Institute of Polymer Science, The University of Akron, Akron, Ohio 44325-3909
| | - Lin-Fang Zhu
- 1Institute of Polymer Science, The University of Akron, Akron, Ohio 44325-3909
| | - Jing-Jing Ma
- 1Institute of Polymer Science, The University of Akron, Akron, Ohio 44325-3909
| | - Toshiki Takizawa
- 1Institute of Polymer Science, The University of Akron, Akron, Ohio 44325-3909
| | - Thomas Lynch
- 1Institute of Polymer Science, The University of Akron, Akron, Ohio 44325-3909
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