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Liu YF, Hou N, Shi YJ, Li CX, Gao YJ, Liu LN. [Relationship between plasma levels of thrombin activatable fibrinolysis inhibitor, plasminogen activator inhibitor-1 and tissue-type plasminogen activator and deep venous thrombosis in patients with systemic lupus erythematosus]. Zhonghua Yi Xue Za Zhi 2023; 103:1638-1642. [PMID: 37248064 DOI: 10.3760/cma.j.cn112137-20220907-01888] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Objective: To investigate the plasma levels of thrombin activatable fibrinolysis inhibitor (TAFI), plasminogen activator inhibitor-1 (PAI-1) and tissue-type plasminogen activator (t-PA) in patients with systemic lupus erythematosus (SLE), and their relationship with deep venous thrombosis of the lower limbs. Methods: A case-control study was conducted to retrospectively select 32 SLE patients with deep venous thrombosis of the lower extremities (thrombus group) admitted to Liaocheng People's Hospital in Shandong Province from June 2018 to June 2021, including 4 males and 28 females, with a mean age of (49.7±5.5) years. Meanwhile, 64 SLE patients without deep venous thrombosis of the lower extremities (control group) were also selected, including 11 males and 53 females, with a mean age of (50.8±5.5) years. The plasma levels of TAFI, PAI-1 and t-PA of the two groups were compared. A logistic regression model was used to analyze the correlation of TAFI, PAI-1 and t-PA with SLE in patients. Results: The plasma levels of TAFI, PAI-1 and t-PA were (32.77±5.17) mg/L, (29.43±5.51) μg/L and (6.58±1.40) μg/L in the thrombotic group, while the plasma levels of TAFI, PAI-1 and t-PA in the control group were (23.56±4.40) mg/L, (19.00±4.40) μg/L and (9.40±2.23) μg/L. The levels of TAFI and PAI-1 in the thrombotic group were higher than those in the control group, while the level of t-PA was lower than that in the control group (all P<0.05). The results of logistic regression model showed that higher TAFI levels (OR=1.75, 95%CI: 1.05-2.90, P=0.043), higher PAI-1 levels (OR=1.85, 95%CI: 1.04-3.29, P=0.046), and lower t-PA levels (OR=0.72, 95%CI: 0.52-0.99, P=0.048) were related factors for the occurrence of deep venous thrombosis of the lower limbs in SLE patients. Conclusion: The plasma levels of TAFI and PAI-1 in SLE patients with deep venous thrombosis of the lower extremities increase, while the t-PA level decreases, which are related factors for the occurrence of deep venous thrombosis of the lower extremities in SLE patients.
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Affiliation(s)
- Y F Liu
- Department of Rheumatology and Immunology, Liaocheng People's Hospital of Shandong Province, Liaocheng 252000, China
| | - N Hou
- Department of Rheumatology and Immunology, Liaocheng People's Hospital of Shandong Province, Liaocheng 252000, China
| | - Y J Shi
- Department of Rheumatology and Immunology, Liaocheng People's Hospital of Shandong Province, Liaocheng 252000, China
| | - C X Li
- Department of Rheumatology and Immunology, Liaocheng People's Hospital of Shandong Province, Liaocheng 252000, China
| | - Y J Gao
- Department of Laboratory Medicine, Liaocheng People's Hospital of Shandong Province, Liaocheng 252000, China
| | - L N Liu
- Department of Rheumatology and Immunology, Liaocheng People's Hospital of Shandong Province, Liaocheng 252000, China
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2
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Song J, Hou N, Liu X, Antonietti M, Zhang P, Ding R, Song L, Wang Y, Mu Y. Asymmetrically Coordinated CoB 1 N 3 Moieties for Selective Generation of High-Valence Co-Oxo Species via Coupled Electron-Proton Transfer in Fenton-like Reactions. Adv Mater 2023; 35:e2209552. [PMID: 36932043 DOI: 10.1002/adma.202209552] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Revised: 03/09/2023] [Indexed: 06/09/2023]
Abstract
High-valence metal species generated in peroxymonosulfate (PMS)-based Fenton-like processes are promising candidates for selective degradation of contaminants in water, the formation of which necessitates the cleavage of OH and OO bonds as well as efficient electron transfer. However, the high dissociation energy of OH bond makes its cleavage quite challenging, largely hampering the selective generation of reactive oxygen species. Herein, an asymmetrical configuration characterized by a single cobalt atom coordinated with boron and nitrogen (CoB1 N3 ) is established to offer a strong local electric field, upon which the cleavage of OH bond is thermodynamically favored via a promoted coupled electron-proton transfer process, which serves an essential step to further allow OO bond cleavage and efficient electron transfer. Accordingly, the selective formation of Co(IV)O in a single-atom Co/PMS system enables highly efficient removal performance toward various organic pollutants. The proposed strategy also holds true in other heteroatom doping systems to configure asymmetric coordination, thus paving alternative pathways for specific reactive species conversion by rationalized design of catalysts at atomic level toward environmental applications and more.
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Affiliation(s)
- Junsheng Song
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, University of Science & Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Nannan Hou
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, University of Science & Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Xiaocheng Liu
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, University of Science & Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Markus Antonietti
- Department of Colloid Chemistry, Max Planck Institute of Colloids and Interfaces, 14476, Potsdam, Germany
| | - Pengjun Zhang
- CAS Center for Excellence in Nanoscience, National Synchrotron Radiation Laboratory, University of Science & Technology of China, Hefei, Anhui, 230029, P. R. China
| | - Rongrong Ding
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, University of Science & Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Li Song
- CAS Center for Excellence in Nanoscience, National Synchrotron Radiation Laboratory, University of Science & Technology of China, Hefei, Anhui, 230029, P. R. China
| | - Yang Wang
- Department of Colloid Chemistry, Max Planck Institute of Colloids and Interfaces, 14476, Potsdam, Germany
| | - Yang Mu
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, University of Science & Technology of China, Hefei, Anhui, 230026, P. R. China
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3
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Wang J, Zhang J, Liu J, Hou N, Li Q, Zhou G, Li K, Mu Y. Generation of iodinated trihalomethanes during chloramination in the presence of solid copper corrosion products. Water Res 2022; 220:118630. [PMID: 35609430 DOI: 10.1016/j.watres.2022.118630] [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: 12/06/2021] [Revised: 05/06/2022] [Accepted: 05/15/2022] [Indexed: 06/15/2023]
Abstract
Copper water pipelines are widely used in water distribution systems, but the effects of solid copper corrosion products (CCPs) including CuO, Cu2O and Cu2(OH)2CO3 on the generation of iodinated trihalomethanes (I-THMs) during chloramination remain unknown. This study found that the formation of I-THMs during chloramination of humic acid (HA) was inhibited by the presence of CuO and Cu2O, but promoted with the addition of Cu2(OH)2CO3. The negative effect of CuO and Cu2O is mainly exerted by promoting the decay of both NH2Cl and HOI. Although Cu2(OH)2CO3 also accelerated the decomposition of NH2Cl and HOI, it was found that the complexes formed between Cu2(OH)2CO3 and HA facilitated, through carboxyl functional groups, the reaction between HA and HOI, leading to an enhancement of I-THM generation during chloramination, which was further confirmed by model compound experiments. Additionally, this study demonstrated that the effects of solid CCPs on I-THM generation during chloramination were solid CCP- and HA-concentration dependent, but almost unaffected by different initial I- and Br- concentrations. This study provides new insights into the health risks caused by the corrosion of copper water pipelines, especially in areas intruded by sea water.
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Affiliation(s)
- Jing Wang
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, University of Science and Technology of China, Hefei 230026, China
| | - Jie Zhang
- Instrumental Analysis Center of Shanghai Jiao Tong University, Shanghai Jiao Tong University, Shanghai, China
| | - Jing Liu
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, University of Science and Technology of China, Hefei 230026, China
| | - Nannan Hou
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, University of Science and Technology of China, Hefei 230026, China.
| | - Qi Li
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, University of Science and Technology of China, Hefei 230026, China
| | - Guannan Zhou
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, University of Science and Technology of China, Hefei 230026, China
| | - Kewan Li
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, University of Science and Technology of China, Hefei 230026, China
| | - Yang Mu
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, University of Science and Technology of China, Hefei 230026, China.
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4
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Zhao HQ, Hou N, Wang YR, Li WQ, Liu Q, Lu P, Mu Y. Carbon nanotubes mediated chemical and biological decolorization of azo dye: Understanding the structure-activity relationship. Environ Res 2022; 210:112897. [PMID: 35151661 DOI: 10.1016/j.envres.2022.112897] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2021] [Revised: 01/15/2022] [Accepted: 02/02/2022] [Indexed: 06/14/2023]
Abstract
Chemical structure of azo dyes molecules showed significant influence on their decolorization rate, while the structure-activity relationship between chemical structure and their reduction decolorization rate is not fully understand. In this study, we found that azo dye molecule with closer position for electron-withdrawing substituent to azo bond resulted in faster chemical and biotic reduction rate with or without presence of carbon nanotubes (CNTs), while electron-repulsive substituent closer to azo bond leading to slower azo dye chemical and biotic reduction rate no matter with or without presence of CNTs. Additionally, galvanic cell experiments implied that electron transfer process may play important roles for both chemical and biological reduction decolorization of azo dyes, and CV results indicated that the higher (azo bond breakage) reduction wave potential corresponding to a faster azo dye chemical decolorization reaction. Finally, the results of Lowest Unoccupied Molecular Orbital (LUMO) energy established that lower LUMO energy for azo dye corresponding to a faster chemical decolorization reaction. This study not only offer systematized relationships between structure property of azo dye and their decolorization rate, but also provide a universal and propagable reduction rules.
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Affiliation(s)
- Han-Qing Zhao
- College of Environment and Ecology, Chongqing University, Chongqing, China; CAS Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, University of Science and Technology of China, Hefei, China
| | - Nannan Hou
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, University of Science and Technology of China, Hefei, China.
| | - Yi-Ran Wang
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, University of Science and Technology of China, Hefei, China
| | - Wen-Qiang Li
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, University of Science and Technology of China, Hefei, China
| | - Qi Liu
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, University of Science and Technology of China, Hefei, China
| | - Peili Lu
- College of Environment and Ecology, Chongqing University, Chongqing, China
| | - Yang Mu
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, University of Science and Technology of China, Hefei, China.
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5
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Wang YX, Hou N, Liu XL, Mu Y. Advances in interfacial engineering for enhanced microbial extracellular electron transfer. Bioresource Technology 2022; 345:126562. [PMID: 34910968 DOI: 10.1016/j.biortech.2021.126562] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Revised: 12/07/2021] [Accepted: 12/09/2021] [Indexed: 06/14/2023]
Abstract
The extracellular electron transfer (EET) efficiency between electroactive microbes (EAMs) and electrode is a key factor determining the development of microbial electrochemical technology (MET). Currently, the low EET efficiency of EAMs limits the application of MET in the fields of organic matter degradation, electric energy production, seawater desalination, bioremediation and biosensing. Enhancement of the interaction between EAMs and electrode by interfacial engineering methods brings bright prospects for the improvement of the EET efficiency of EAMs. In view of the research in recent years, this mini-review systematically summarizes various interfacial engineering strategies ranging from electrode surface modification to hybrid biofilm formation, then to single cell interfacial engineering and intracellular reformation for promoting the electron transfer between EAMs and electrode, focusing on the applicability and limitations of these methodologies. Finally, the possible key directions, challenges and opportunities for future interfacial engineering to strengthen the microbial EET are proposed in this mini-review.
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Affiliation(s)
- Yi-Xuan Wang
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, University of Science and Technology of China, Hefei, China
| | - Nannan Hou
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, University of Science and Technology of China, Hefei, China
| | - Xiao-Li Liu
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, University of Science and Technology of China, Hefei, China
| | - Yang Mu
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, University of Science and Technology of China, Hefei, China.
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6
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Hou N, Zhou Z, Chen Y, Tian J, Zhang Y, Liu Z. RNA interference in Pardosa pseudoannulata, an important predatory enemy against several insect pests, through ingestion of dsRNA-expressing Escherichia coli. Insect Mol Biol 2021; 30:624-631. [PMID: 34410024 DOI: 10.1111/imb.12731] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 07/11/2021] [Accepted: 08/04/2021] [Indexed: 06/13/2023]
Abstract
RNA interference is an important technology for gene functional research in many organisms. The pond wolf spider (Pardosa pseudoannulata) is an important natural enemy of rice field pests. To facilitate large-scale gene functional research in this spider species and others, we developed an RNA interference (RNAi) method via ingestion of bacteria expressing dsRNA. The dsRNA targeting a cytochrome P450 monooxygenase (cyp41g2) was expressed in Escherichia coli HT115 (DE3). And then the bacterial suspension was fed to 14-20 days old spiderlings. The mRNA abundance of the target gene was significantly reduced after 3-day's ingestion of bacteria expressing dsRNA, and between day 5 and 7, RNAi efficiency remained stable. Thus, we selected 5 days as the optimum interference time. Furthermore, the bacteria resuspension containing 20 ng/μl dsRNA was selected as the optimum concentration. To evaluate the applicability of this method, three other genes with different tissue expression pattern were also selected as targets. And the mRNA abundance of all the four target genes was significantly reduced with RNAi efficiency between 66.0% and up to 86.9%. The results demonstrated that the oral delivery of bacteria expressing dsRNA would be an effective RNAi method for the gene functional study in P. pseudoannulata.
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Affiliation(s)
- N Hou
- Key Laboratory of Integrated Management of Crop Diseases and Pests (Ministry of Education), College of Plant Protection, Nanjing Agricultural University, Nanjing, China
| | - Z Zhou
- Key Laboratory of Integrated Management of Crop Diseases and Pests (Ministry of Education), College of Plant Protection, Nanjing Agricultural University, Nanjing, China
| | - Y Chen
- Key Laboratory of Integrated Management of Crop Diseases and Pests (Ministry of Education), College of Plant Protection, Nanjing Agricultural University, Nanjing, China
| | - J Tian
- Key Laboratory of Integrated Management of Crop Diseases and Pests (Ministry of Education), College of Plant Protection, Nanjing Agricultural University, Nanjing, China
| | - Y Zhang
- Key Laboratory of Integrated Management of Crop Diseases and Pests (Ministry of Education), College of Plant Protection, Nanjing Agricultural University, Nanjing, China
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7
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Ju D, Zhang W, Yan J, Zhao H, Li W, Wang J, Liao M, Xu Z, Wang Z, Zhou G, Mei L, Hou N, Ying S, Cai T, Chen S, Xie X, Lai L, Tang C, Park N, Takahashi JS, Huang N, Qi X, Zhang EE. Chemical perturbations reveal that RUVBL2 regulates the circadian phase in mammals. Sci Transl Med 2020; 12:12/542/eaba0769. [DOI: 10.1126/scitranslmed.aba0769] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2019] [Accepted: 04/13/2020] [Indexed: 12/12/2022]
Abstract
Transcriptional regulation lies at the core of the circadian clockwork, but how the clock-related transcription machinery controls the circadian phase is not understood. Here, we show both in human cells and in mice that RuvB-like ATPase 2 (RUVBL2) interacts with other known clock proteins on chromatin to regulate the circadian phase. Pharmacological perturbation of RUVBL2 with the adenosine analog compound cordycepin resulted in a rapid-onset 12-hour clock phase-shift phenotype at human cell, mouse tissue, and whole-animal live imaging levels. Using simple peripheral injection treatment, we found that cordycepin penetrated the blood-brain barrier and caused rapid entrainment of the circadian phase, facilitating reduced duration of recovery in a mouse jet-lag model. We solved a crystal structure for human RUVBL2 in complex with a physiological metabolite of cordycepin, and biochemical assays showed that cordycepin treatment caused disassembly of an interaction between RUVBL2 and the core clock component BMAL1. Moreover, we showed with spike-in ChIP-seq analysis and binding assays that cordycepin treatment caused disassembly of the circadian super-complex, which normally resides at E-box chromatin loci such as PER1, PER2, DBP, and NR1D1. Mathematical modeling supported that the observed type 0 phase shifts resulted from derepression of E-box clock gene transcription.
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Affiliation(s)
- Dapeng Ju
- National Institute of Biological Sciences, Beijing 102206, China
- College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Wei Zhang
- RPXDs (Suzhou) Co. Ltd., Suzhou City, Jiangsu Province 215028, China
| | - Jiawei Yan
- School of Life Sciences, Peking University, Beijing 100871, China
| | - Haijiao Zhao
- National Institute of Biological Sciences, Beijing 102206, China
| | - Wei Li
- RPXDs (Suzhou) Co. Ltd., Suzhou City, Jiangsu Province 215028, China
| | - Jiawen Wang
- National Institute of Biological Sciences, Beijing 102206, China
| | - Meimei Liao
- National Institute of Biological Sciences, Beijing 102206, China
- College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Zhancong Xu
- National Institute of Biological Sciences, Beijing 102206, China
| | - Zhiqiang Wang
- National Institute of Biological Sciences, Beijing 102206, China
| | - Guanshen Zhou
- National Institute of Biological Sciences, Beijing 102206, China
| | - Long Mei
- National Institute of Biological Sciences, Beijing 102206, China
- School of Life Sciences, Peking University, Beijing 100871, China
| | - Nannan Hou
- National Institute of Biological Sciences, Beijing 102206, China
| | - Shuhua Ying
- National Institute of Biological Sciences, Beijing 102206, China
| | - Tao Cai
- National Institute of Biological Sciences, Beijing 102206, China
| | - She Chen
- National Institute of Biological Sciences, Beijing 102206, China
| | - Xiaowen Xie
- School of Life Sciences, Peking University, Beijing 100871, China
- Center for Quantitative Biology, Peking University, Beijing 100871, China
| | - Luhua Lai
- Center for Quantitative Biology, Peking University, Beijing 100871, China
- College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Chao Tang
- Center for Quantitative Biology, Peking University, Beijing 100871, China
- School of Physics and Peking-Tsinghua Center for Life Sciences, Peking University, Beijing 100871, China
| | - Noheon Park
- Department of Neuroscience, University of Texas Southwestern Medical Center, Dallas, TX 75390-9111, USA
| | - Joseph S. Takahashi
- Department of Neuroscience, University of Texas Southwestern Medical Center, Dallas, TX 75390-9111, USA
- Howard Hughes Medical Institute, University of Texas Southwestern Medical Center, Dallas, TX 75390-9111, USA
| | - Niu Huang
- National Institute of Biological Sciences, Beijing 102206, China
- Tsinghua Institute of Multidisciplinary Biomedical Research, Tsinghua University, Beijing 102206, China
| | - Xiangbing Qi
- National Institute of Biological Sciences, Beijing 102206, China
- Tsinghua Institute of Multidisciplinary Biomedical Research, Tsinghua University, Beijing 102206, China
| | - Eric Erquan Zhang
- National Institute of Biological Sciences, Beijing 102206, China
- Tsinghua Institute of Multidisciplinary Biomedical Research, Tsinghua University, Beijing 102206, China
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8
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Peng S, Xiao W, Ju D, Sun B, Hou N, Liu Q, Wang Y, Zhao H, Gao C, Zhang S, Cao R, Li P, Huang H, Ma Y, Wang Y, Lai W, Ma Z, Zhang W, Huang S, Wang H, Zhang Z, Zhao L, Cai T, Zhao YL, Wang F, Nie Y, Zhi G, Yang YG, Zhang EE, Huang N. Identification of entacapone as a chemical inhibitor of FTO mediating metabolic regulation through FOXO1. Sci Transl Med 2020; 11:11/488/eaau7116. [PMID: 30996080 DOI: 10.1126/scitranslmed.aau7116] [Citation(s) in RCA: 179] [Impact Index Per Article: 44.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2018] [Accepted: 03/25/2019] [Indexed: 12/14/2022]
Abstract
Recent studies have established the involvement of the fat mass and obesity-associated gene (FTO) in metabolic disorders such as obesity and diabetes. However, the precise molecular mechanism by which FTO regulates metabolism remains unknown. Here, we used a structure-based virtual screening of U.S. Food and Drug Administration-approved drugs to identify entacapone as a potential FTO inhibitor. Using structural and biochemical studies, we showed that entacapone directly bound to FTO and inhibited FTO activity in vitro. Furthermore, entacapone administration reduced body weight and lowered fasting blood glucose concentrations in diet-induced obese mice. We identified the transcription factor forkhead box protein O1 (FOXO1) mRNA as a direct substrate of FTO, and demonstrated that entacapone elicited its effects on gluconeogenesis in the liver and thermogenesis in adipose tissues in mice by acting on an FTO-FOXO1 regulatory axis.
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Affiliation(s)
- Shiming Peng
- National Institute of Biological Sciences, Beijing, No. 7 Science Park Road, Zhongguancun Life Science Park, Beijing 102206, China
| | - Wen Xiao
- Key Laboratory of Genomic and Precision Medicine, Beijing Institute of Genomics, Chinese Academy of Sciences, No. 1 Beichen West Road, Chaoyang District, Beijing 100101, China
| | - Dapeng Ju
- National Institute of Biological Sciences, Beijing, No. 7 Science Park Road, Zhongguancun Life Science Park, Beijing 102206, China
| | - Baofa Sun
- Key Laboratory of Genomic and Precision Medicine, Beijing Institute of Genomics, Chinese Academy of Sciences, No. 1 Beichen West Road, Chaoyang District, Beijing 100101, China.,University of Chinese Academy of Sciences, Beijing 100049, China.,Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing 100101, China
| | - Nannan Hou
- National Institute of Biological Sciences, Beijing, No. 7 Science Park Road, Zhongguancun Life Science Park, Beijing 102206, China
| | - Qianlan Liu
- Key Laboratory of Genomic and Precision Medicine, Beijing Institute of Genomics, Chinese Academy of Sciences, No. 1 Beichen West Road, Chaoyang District, Beijing 100101, China.,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yanli Wang
- National Institute of Biological Sciences, Beijing, No. 7 Science Park Road, Zhongguancun Life Science Park, Beijing 102206, China
| | - Haijiao Zhao
- National Institute of Biological Sciences, Beijing, No. 7 Science Park Road, Zhongguancun Life Science Park, Beijing 102206, China
| | - Chunchun Gao
- Key Laboratory of Genomic and Precision Medicine, Beijing Institute of Genomics, Chinese Academy of Sciences, No. 1 Beichen West Road, Chaoyang District, Beijing 100101, China.,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Song Zhang
- State Key Laboratory of Cancer Biology and Xijing Hospital of Digestive Diseases, Fourth Military Medical University, 127 West Changle Road, Xi'an, Shaanxi 710032, China
| | - Ran Cao
- National Institute of Biological Sciences, Beijing, No. 7 Science Park Road, Zhongguancun Life Science Park, Beijing 102206, China
| | - Pengfei Li
- National Institute of Biological Sciences, Beijing, No. 7 Science Park Road, Zhongguancun Life Science Park, Beijing 102206, China
| | - Huanwei Huang
- National Institute of Biological Sciences, Beijing, No. 7 Science Park Road, Zhongguancun Life Science Park, Beijing 102206, China
| | - Yongfen Ma
- National Institute of Biological Sciences, Beijing, No. 7 Science Park Road, Zhongguancun Life Science Park, Beijing 102206, China
| | - Yankai Wang
- National Institute of Biological Sciences, Beijing, No. 7 Science Park Road, Zhongguancun Life Science Park, Beijing 102206, China
| | - Weiyi Lai
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Zhixiong Ma
- National Institute of Biological Sciences, Beijing, No. 7 Science Park Road, Zhongguancun Life Science Park, Beijing 102206, China
| | - Wei Zhang
- National Institute of Biological Sciences, Beijing, No. 7 Science Park Road, Zhongguancun Life Science Park, Beijing 102206, China
| | - Song Huang
- National Institute of Biological Sciences, Beijing, No. 7 Science Park Road, Zhongguancun Life Science Park, Beijing 102206, China
| | - Hailin Wang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Zhiyuan Zhang
- National Institute of Biological Sciences, Beijing, No. 7 Science Park Road, Zhongguancun Life Science Park, Beijing 102206, China
| | - Liping Zhao
- National Institute of Biological Sciences, Beijing, No. 7 Science Park Road, Zhongguancun Life Science Park, Beijing 102206, China
| | - Tao Cai
- National Institute of Biological Sciences, Beijing, No. 7 Science Park Road, Zhongguancun Life Science Park, Beijing 102206, China
| | - Yong-Liang Zhao
- Key Laboratory of Genomic and Precision Medicine, Beijing Institute of Genomics, Chinese Academy of Sciences, No. 1 Beichen West Road, Chaoyang District, Beijing 100101, China.,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Fengchao Wang
- National Institute of Biological Sciences, Beijing, No. 7 Science Park Road, Zhongguancun Life Science Park, Beijing 102206, China
| | - Yongzhan Nie
- State Key Laboratory of Cancer Biology and Xijing Hospital of Digestive Diseases, Fourth Military Medical University, 127 West Changle Road, Xi'an, Shaanxi 710032, China
| | - Gang Zhi
- National Institute of Biological Sciences, Beijing, No. 7 Science Park Road, Zhongguancun Life Science Park, Beijing 102206, China
| | - Yun-Gui Yang
- Key Laboratory of Genomic and Precision Medicine, Beijing Institute of Genomics, Chinese Academy of Sciences, No. 1 Beichen West Road, Chaoyang District, Beijing 100101, China. .,University of Chinese Academy of Sciences, Beijing 100049, China.,Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing 100101, China
| | - Eric Erquan Zhang
- National Institute of Biological Sciences, Beijing, No. 7 Science Park Road, Zhongguancun Life Science Park, Beijing 102206, China. .,Tsinghua Institute of Multidisciplinary Biomedical Research, Tsinghua University, Beijing 102206, China
| | - Niu Huang
- National Institute of Biological Sciences, Beijing, No. 7 Science Park Road, Zhongguancun Life Science Park, Beijing 102206, China. .,Tsinghua Institute of Multidisciplinary Biomedical Research, Tsinghua University, Beijing 102206, China
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Guo YT, Hou N, Liang JH, Zhang ZK, Cao TS, Yuan LJ. Three-dimensional printed multicolor normal and abnormal fetal hearts based on ultrasound imaging data. Ultrasound Obstet Gynecol 2020; 55:421-422. [PMID: 31290180 DOI: 10.1002/uog.20392] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2019] [Revised: 06/24/2019] [Accepted: 07/02/2019] [Indexed: 06/09/2023]
Affiliation(s)
- Y-T Guo
- Department of Ultrasound Diagnosis, Tangdu Hospital, The Fourth Military Medical University, Xi'an, Shaanxi, China
- 3D Printing Center, The Fourth Military Medical University, Xi'an, Shaanxi, China
| | - N Hou
- Department of Ultrasound Diagnosis, Tangdu Hospital, The Fourth Military Medical University, Xi'an, Shaanxi, China
| | - J-H Liang
- Department of Ultrasound Diagnosis, Tangdu Hospital, The Fourth Military Medical University, Xi'an, Shaanxi, China
- 3D Printing Center, The Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Z-K Zhang
- Department of Ultrasound Diagnosis, Tangdu Hospital, The Fourth Military Medical University, Xi'an, Shaanxi, China
- 3D Printing Center, The Fourth Military Medical University, Xi'an, Shaanxi, China
| | - T-S Cao
- Department of Ultrasound Diagnosis, Tangdu Hospital, The Fourth Military Medical University, Xi'an, Shaanxi, China
- 3D Printing Center, The Fourth Military Medical University, Xi'an, Shaanxi, China
| | - L-J Yuan
- Department of Ultrasound Diagnosis, Tangdu Hospital, The Fourth Military Medical University, Xi'an, Shaanxi, China
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Liu W, Tian J, Hou N, Yu N, Zhang Y, Liu Z. Identification, genomic organization and expression pattern of glutathione transferase in Pardosa pseudoannulata. Comp Biochem Physiol Part D Genomics Proteomics 2019; 32:100626. [PMID: 31669773 DOI: 10.1016/j.cbd.2019.100626] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [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: 05/13/2019] [Revised: 09/03/2019] [Accepted: 09/06/2019] [Indexed: 12/21/2022]
Abstract
The pond wolf spider, Pardosa pseudoannulata, is one of the dominant natural enemies in farmlands and plays important roles in controlling a range of insect pests. The spider is less sensitive to many insecticides than the target pests such as the brown planthopper, Nilaparvata lugens. The different sensitivity to a certain insecticide between species is mostly attributed to the differences in both molecular targets and detoxification enzymes. As one of the most important detoxification enzymes, glutathione transferases (GSTs) play a key role as phase II enzyme in the enzymic detoxification in organisms. Until now, there are few studies on spiders' GSTs, limiting the understanding of insecticide selectivity between insect pests and natural enemy spiders. In this study, based on the transcriptome and genome sequencing of P. pseudoannulata, thirteen full-length transcripts encoding GSTs were identified and analyzed. Interestingly, Delta family, which is thought to be specific to the Insecta, was identified in P. pseudoannulata. Further, vertebrate/mammalian-specific Mu family was also identified in P. pseudoannulata. The mRNA expression levels of cytosolic GSTs in different tissues were determined, and most GST genes were abundant in the gut and the fat body. To investigate GST candidates involving in insecticide detoxification, the mRNA levels of cytosolic GSTs were tested after spiders' exposure to either imidacloprid or deltamethrin. The results showed that PpGSTD3 and PpGSTT1 responded to at least one of these two insecticides. The present study helped understand the function of GSTs in P. pseudoannulata and enriched the genetic information of natural enemy spiders.
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Affiliation(s)
- Wei Liu
- Key Laboratory of Integrated Management of Crop Diseases and Pests (Ministry of Education), College of Plant Protection, Nanjing Agricultural University, Weigang 1, Nanjing 210095, China
| | - Jiahua Tian
- Key Laboratory of Integrated Management of Crop Diseases and Pests (Ministry of Education), College of Plant Protection, Nanjing Agricultural University, Weigang 1, Nanjing 210095, China
| | - Nannan Hou
- Key Laboratory of Integrated Management of Crop Diseases and Pests (Ministry of Education), College of Plant Protection, Nanjing Agricultural University, Weigang 1, Nanjing 210095, China
| | - Na Yu
- Key Laboratory of Integrated Management of Crop Diseases and Pests (Ministry of Education), College of Plant Protection, Nanjing Agricultural University, Weigang 1, Nanjing 210095, China
| | - Yixi Zhang
- Key Laboratory of Integrated Management of Crop Diseases and Pests (Ministry of Education), College of Plant Protection, Nanjing Agricultural University, Weigang 1, Nanjing 210095, China.
| | - Zewen Liu
- Key Laboratory of Integrated Management of Crop Diseases and Pests (Ministry of Education), College of Plant Protection, Nanjing Agricultural University, Weigang 1, Nanjing 210095, China
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11
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Gu L, Zhang L, Hou N, Li M, Shen W, Xie X, Teng Y. Clinical and radiographic characterization of primary seminomas and nonseminomatous germ cell tumors. Niger J Clin Pract 2019; 22:342-349. [PMID: 30837421 DOI: 10.4103/njcp.njcp_448_18] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Background Primary malignant mediastinal germ cell tumors (PMMGCTs) including seminomas and nonseminomatous germ cell tumors (NSGCTs) are rare, and sometimes the diagnosis is very difficult. Purpose The purpose of this study is to compare the clinical characteristics, biomarkers, and imaging findings of seminomas and NSGCTs and to determine whether these features could help distinguish these two types of PMMGCT. Material and Methods A retrospective study of 24 male patients with histopathologically proven PMMGCT was performed. We collected the information of computed tomography (CT) (the scan area ranged from the apex of lung to the costophrenic angles) and magnetic resonance imaging blood test and histology characteristics of these patients. Results Twelve of 24 cases were confirmed to be seminomas, whereas the other 12 cases were NSGCTs. Alfa-fetoprotein (AFP) was found to be elevated in all patients with NSGCT, whereas none of the patients with seminomas had elevated AFP level. Beta-human chorionic gonadotropin (β-HCG) level was elevated in all the patients with seminomas (seven/seven), whereas in NSGCT only two of seven patients had elevated β-HCG. Lactate dehydrogenase level was increased in five of the nine patients with seminomas, as well as in the eight patients with NSGCT. CT imaging revealed that 12 masses from the seminoma group were homogeneous, soft tissue opacity and showed minimal contrast enhancement. On the contrary, all 12 NSGCT cases showed cystic and solid masses; on contrast-enhanced CT, heterogeneous enhancement was found on the capsule of the tumor, septum, and solid masses. Conclusion Seminomas and NSGCT showed different profiles of tumor biomarkers and radiographic features. Evidence from serum test, histopathological analysis, and imaging should be combined to ensure the accurate diagnosis of these two types of PMMGCT.
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Affiliation(s)
- L Gu
- Department of Radiology, Jiangsu Cancer Hospital and Jiangsu Institute of Cancer Research and The Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, Jiangsu, P. R. China
| | - L Zhang
- Department of Radiology, Jiangsu Cancer Hospital and Jiangsu Institute of Cancer Research and The Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, Jiangsu, P. R. China
| | - N Hou
- Department of Pathology, Jiangsu Cancer Hospital and Jiangsu Institute of Cancer Research and The Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, Jiangsu, P. R. China
| | - M Li
- Department of Chest Surgery, Jiangsu Cancer Hospital and Jiangsu Institute of Cancer Research and The Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, Jiangsu, P. R. China
| | - W Shen
- Department of Radiology, Jiangsu Cancer Hospital and Jiangsu Institute of Cancer Research and The Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, Jiangsu, P. R. China
| | - X Xie
- Department of Radiology, Jiangsu Cancer Hospital and Jiangsu Institute of Cancer Research and The Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, Jiangsu, P. R. China
| | - Y Teng
- Department of Medical Oncology, Jiangsu Cancer Hospital and Jiangsu Institute of Cancer Research and The Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, Jiangsu, P. R. China
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12
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Sun L, Ma L, Zhang H, Cao Y, Wang C, Hou N, Huang N, von Deneen KM, Zhao C, Shi Y, Pan Y, Wang M, Ji G, Nie Y. Fto Deficiency Reduces Anxiety- and Depression-Like Behaviors in Mice via Alterations in Gut Microbiota. Theranostics 2019; 9:721-733. [PMID: 30809304 PMCID: PMC6376469 DOI: 10.7150/thno.31562] [Citation(s) in RCA: 65] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2018] [Accepted: 12/27/2018] [Indexed: 01/16/2023] Open
Abstract
Depression and obesity have high concurrence within individuals, which may be explained by sharing the same risk factors, including disruption of the intestinal microbiota. However, evidence that delineated the causal connections is extremely scarce. Methods: Mice lacking fat mass- and obesity-associated gene (Fto) were generated. Fto-deficient and wild-type control mice were subjected to novel conditions with or without chronic unpredictable mild stress (CUMS) for 6 weeks. Some mice were treated with antibiotics via their drinking water for 6 weeks in order to deplete their microbiota. Behavioral tests were performed to evaluate anxiety- and depression-like behaviors. 16S rRNA amplicon and metagenomic sequencing were employed to analyse fecal microbiota. Plasma levels of inflammatory cytokines and lipopolysaccharides (LPS) were also compared. Results: Deletion of Fto led to lower body weight and decreased anxiety- and depression-like behaviors, Fto+/- mice were also less susceptible to stress stimulation, highlighting the essential role of Fto in pathogenesis of depression. With regard to gut microbiota, Fto deficiency mice harbored specific bacterial signature of suppressing inflammation, characterized with higher abundance of Lactobacillus, lower Porphyromonadaceae and Helicobacter. Critically, behavioral alterations of Fto+/- mice are mediated by shift in gut microbiota, as such changes can be partially attenuated using antibiotics. Exposure to CUMS increased serum IL-6 level while Fto deficiency reduced its level, which may be explained by a lower LPS concentration. Conclusion: Together, our findings uncover the roles of Fto on depression and provide insights into microbiota-related biological mechanisms underlying the association between obesity and depression.
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Affiliation(s)
- Lijuan Sun
- State Key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, The Fourth Military Medical University, Xi'an 710032, China
- Department of Clinical Nutrition, Xijing Hospital, The Fourth Military Medical University, Xi׳an, 710032, China
| | - Lanjing Ma
- State Key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, The Fourth Military Medical University, Xi'an 710032, China
| | - Haohao Zhang
- State Key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, The Fourth Military Medical University, Xi'an 710032, China
| | - Ying Cao
- State Key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, The Fourth Military Medical University, Xi'an 710032, China
| | - Chenchen Wang
- State Key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, The Fourth Military Medical University, Xi'an 710032, China
| | - Nannan Hou
- National Institute of Biological Sciences, Number 7 Science Park Road, Zhongguancun Life Science Park, Beijing, MI 102206, China
| | - Niu Huang
- National Institute of Biological Sciences, Number 7 Science Park Road, Zhongguancun Life Science Park, Beijing, MI 102206, China
| | - Karen M. von Deneen
- Center for Brain Imaging, School of Life Science and Technology, Xidian University, Xi'an, Shaanxi 710126, China
| | - Changhai Zhao
- Department of Clinical Nutrition, Xijing Hospital, The Fourth Military Medical University, Xi׳an, 710032, China
| | - Yupeng Shi
- Xijing Hospital of Digestive Diseases, The Fourth Military Medical University, Xi'an, China
| | - Yan Pan
- Xijing Hospital of Digestive Diseases, The Fourth Military Medical University, Xi'an, China
| | - Meixia Wang
- Xijing Hospital of Digestive Diseases, The Fourth Military Medical University, Xi'an, China
| | - Gang Ji
- Xijing Hospital of Digestive Diseases, The Fourth Military Medical University, Xi'an, China
| | - Yongzhan Nie
- State Key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, The Fourth Military Medical University, Xi'an 710032, China
- Xijing Hospital of Digestive Diseases, The Fourth Military Medical University, Xi'an, China
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Huang S, Huang ZP, Hou N. [First bite syndrome after parapharyngeal space tumor surgery:two cases report]. Lin Chung Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2019; 33:81-84. [PMID: 30669206 DOI: 10.13201/j.issn.1001-1781.2019.01.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 04/23/2018] [Indexed: 11/12/2022]
Abstract
Ten patients with parapharyngeal space tumor, all underwent surgery, which of two cases concurrent FBS,analyze its clinical characteristics and review the related literatures. Two cases complicated with FBS, both with primary healing of incision, the pathological diagnosis are pleomorphic adenoma and schwannoglioma respectively, both give non-steroidal anti-inflammatory drugs, paregoric and anticonvulsants, followed up for nine months and 16 months respectively, both two cases partial relief. FBS is one of surgical complications of parapharyngeal space,which should not be neglected by physicians. Additional investigations of FBS are needed to gain a better understanding of the pathophysiological mechanisms of this condition.
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14
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Hou N, Jing F, Rong W, He DW, Zhu JJ, Fang L, Sun CJ. [Meta analysis of the efficacy and safety of drainage after total hip arthroplasty]. Zhonghua Yi Xue Za Zhi 2018; 97:1668-1672. [PMID: 28606258 DOI: 10.3760/cma.j.issn.0376-2491.2017.21.016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To determine whether suction drainage is safe and effective compared with no-drainage in total hip arthroplasty. Methods: The research was based on PubMed, MEDLINE, EMBASE, Highwire, the Cochrane Library, CBM, CNKI, VIP and WFSD.The data were analysed using RevMan 5.2.Twenty-seven randomised controlled trials involving 3 603 hips were included in the analysis. Results: The meta-analysis indicate that suction drainage increases the rate of homologous blood transfusion (OR=1.98, 95%CI: 1.49-2.64, P<0.000 01)and the length of stay (OR=0.66, 95%CI: -0.01-1.33, P=0.05) (P<0.05). No significant difference was observed in the incidence of infection(OR=0.80, 95%CI: 0.52-1.22, P=0.30), wound haematomas(OR=0.47, 95%CI: 0.21-1.10, P=0.08), oozing (OR=0.93, 95%CI: 0.63-1.36, P=0.71) , deep venous thrombosis(OR=2.12, 95%CI: 0.68-6.56, P=0.19), VAS(OR=-0.06, 95%CI: -0.37-0.24, P=0.68) when the drainage group was compared with the no-drainage group. Conclusions: The comparison between suction drainage and no drainage in THA have indicated that no-drainage for easy total hip arthroplasty may be a better choice. However, orthopedic surgeon need to weigh the pros and cons of no-drainage in some complicated THAs.
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Affiliation(s)
- N Hou
- Department of Orthopedic, Yucheng People's Hospital, Shandong 251200, China
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15
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Hou N, Guan WB, Wang RF, Yu WW, Qiao M, Yan Y, Sun YQ, Wang LF. [Clinicopathologic characteristics of pancreatoblastoma]. Zhonghua Bing Li Xue Za Zhi 2017; 46:857-858. [PMID: 29224282 DOI: 10.3760/cma.j.issn.0529-5807.2017.12.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
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Shrestha A, Eldar-Lissai A, Hou N, Lakdawalla D, Batt K. Real-world resource use and costs of haemophilia A-related bleeding. Haemophilia 2017; 23:e267-e275. [DOI: 10.1111/hae.13220] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/21/2017] [Indexed: 12/22/2022]
Affiliation(s)
- A. Shrestha
- Precision Health Economics; Los Angeles CA USA
| | | | - N. Hou
- Precision Health Economics; Los Angeles CA USA
| | - D.N. Lakdawalla
- Precision Health Economics; Los Angeles CA USA
- University of Southern California; Los Angeles CA USA
| | - K. Batt
- Precision Health Economics; Los Angeles CA USA
- Wake Forest University School of Medicine; Winston-Salem NC USA
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17
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May SG, Chung AH, Vania DK, Hou N, MacEwan J, Batt K, Kurian AW, Zacker C, Globe D, Goldman DP. Abstract P4-20-02: Value of cancer care for metastatic breast cancer patients and providers. Cancer Res 2017. [DOI: 10.1158/1538-7445.sabcs16-p4-20-02] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: The landscape of treatment options and associated prognosis for patients with metastatic breast cancer (MBC) is rapidly evolving. In response to these advances in therapy, numerous organizations have invested considerable resources into developing evaluation frameworks seeking to clarify the value of new therapies. While some of these frameworks foster patient-provider shared decision making, others are more payer focused, and all are limited in their incorporation of patient perceptions of value and evidence on treatment aspects most meaningful to patients.
Objectives: 1) To identify the attributes of treatment that patients with MBC value most, and 2) to explore the alignment between patient valuation of treatment attributes and healthcare provider perceptions of what patients value.
METHODS: Four 90-minute focus groups were conducted: two with patients (aged <50 years and aged ≥50 years) and two with healthcare providers (oncologists and oncology nurses) who treat patients with MBC. Using semi-structured discussion guides tailored to each participant group, patient and provider perceptions of the factors most important to patients when considering treatment were explored as well as various sources of perceived value in cancer care. Discussions were audio recorded and transcribed. Thematic analysis identified attributes patients with MBC consider when making treatment decisions, and concordance between patients and healthcare providers was assessed.
Results: A total of 24 patients and providers (n=5 patients <50 years, n=5 patients ≥50 years, n=7 oncologists, and n=7 nurses) participated in four different focus groups. The factors of greatest importance to patients included: impact of treatment side effects on daily life, depth of treatment response, longevity of life, and the value of hope in traversing their illness and achieving survival landmarks and goals. In contrast, oncologists focused predominantly on clinical considerations, such as treatment effectiveness and managing side effects. Oncology nurses noted similar clinical factors as oncologists, but also aligned more closely with patients on humanistic elements informing treatment decision-making.
Conclusion: This analysis reveals that while patient and healthcare provider assessments of value in treating MBC are well-aligned with respect to clinical factors such as managing side effects and depth of treatment response; patients also prioritize emotional and psychological factors, -- like having hope and avoiding suffering -- in addition to clinical factors. Moving forward, patient-centered value frameworks for MBC will need to address this gap between what providers and payers value and patient goals and priorities.
Citation Format: May SG, Chung AH, Vania DK, Hou N, MacEwan J, Batt K, Kurian AW, Zacker C, Globe D, Goldman DP. Value of cancer care for metastatic breast cancer patients and providers [abstract]. In: Proceedings of the 2016 San Antonio Breast Cancer Symposium; 2016 Dec 6-10; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2017;77(4 Suppl):Abstract nr P4-20-02.
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Affiliation(s)
- SG May
- Precision Health Economics, Los Angeles, CA; Wake Forest Baptist Health, Winston-Salem, NC; Stanford University, Stanford, CA; Novartis Oncology, East Hanover, NJ; University of Southern California, Los Angeles, CA
| | - AH Chung
- Precision Health Economics, Los Angeles, CA; Wake Forest Baptist Health, Winston-Salem, NC; Stanford University, Stanford, CA; Novartis Oncology, East Hanover, NJ; University of Southern California, Los Angeles, CA
| | - DK Vania
- Precision Health Economics, Los Angeles, CA; Wake Forest Baptist Health, Winston-Salem, NC; Stanford University, Stanford, CA; Novartis Oncology, East Hanover, NJ; University of Southern California, Los Angeles, CA
| | - N Hou
- Precision Health Economics, Los Angeles, CA; Wake Forest Baptist Health, Winston-Salem, NC; Stanford University, Stanford, CA; Novartis Oncology, East Hanover, NJ; University of Southern California, Los Angeles, CA
| | - J MacEwan
- Precision Health Economics, Los Angeles, CA; Wake Forest Baptist Health, Winston-Salem, NC; Stanford University, Stanford, CA; Novartis Oncology, East Hanover, NJ; University of Southern California, Los Angeles, CA
| | - K Batt
- Precision Health Economics, Los Angeles, CA; Wake Forest Baptist Health, Winston-Salem, NC; Stanford University, Stanford, CA; Novartis Oncology, East Hanover, NJ; University of Southern California, Los Angeles, CA
| | - AW Kurian
- Precision Health Economics, Los Angeles, CA; Wake Forest Baptist Health, Winston-Salem, NC; Stanford University, Stanford, CA; Novartis Oncology, East Hanover, NJ; University of Southern California, Los Angeles, CA
| | - C Zacker
- Precision Health Economics, Los Angeles, CA; Wake Forest Baptist Health, Winston-Salem, NC; Stanford University, Stanford, CA; Novartis Oncology, East Hanover, NJ; University of Southern California, Los Angeles, CA
| | - D Globe
- Precision Health Economics, Los Angeles, CA; Wake Forest Baptist Health, Winston-Salem, NC; Stanford University, Stanford, CA; Novartis Oncology, East Hanover, NJ; University of Southern California, Los Angeles, CA
| | - DP Goldman
- Precision Health Economics, Los Angeles, CA; Wake Forest Baptist Health, Winston-Salem, NC; Stanford University, Stanford, CA; Novartis Oncology, East Hanover, NJ; University of Southern California, Los Angeles, CA
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Cai J, Yang MY, Hou N, Li X. Association of tumor necrosis factor-α 308G/A polymorphism with urogenital cancer risk: a systematic review and meta-analysis. Genet Mol Res 2015; 14:16102-12. [PMID: 26662402 DOI: 10.4238/2015.december.7.22] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
We integrated all the eligible studies and investigated whether the TNF-α 308G/A polymorphism correlates with urogenital cancer risk. Tumor necrosis factor-α (TNF-α) is a risk factor for some urogenital cancers; however, in prostate and bladder cancers the results are controversial. PubMed, EMBASE, Web of Science, the Cochrane Library, the Chinese Biomedical Literature Database, and the Wanfang Database were searched for all case-control studies on the relationship between the TNF-α 308G/A polymorphism and susceptibility to urogenital cancer between January 1994 and January 2015. The pooled odds ratio with 95% confidence interval was calculated to assess the associations. A total of 504 articles were found, 39 of which involved 11,613 cases and 12,542 controls that fulfilled the inclusion criteria. Overall, the TNF-α 308G/A polymorphism was significantly associated with the risk of urogenital cancer. In the subgroup analysis for different cancer types, significant associations were found in cervical cancer and urothelial carcinoma, while our meta-analysis indicated that there were no significant associations between the TNF-α 308G/A polymorphism and prostate, bladder, or renal cancers. When stratified by ethnicity, significant associations were observed in Caucasian populations, whereas no significant associations were found in African-Americans, Asians, or mixed populations. Furthermore, carriers of the -308A allele among the hospital-based case-control group were at a high risk of urogenital cancer. Our meta-analysis showed that the TNF-α 308G/A polymorphism was significantly associated with urogenital cancer risk, particularly in the Caucasian and hospital-based populations.
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Affiliation(s)
- J Cai
- Department of Pathophysiology, Second Military Medical University, Shanghai, China
| | - M Y Yang
- Department of Orthopedics, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - N Hou
- Department of Hematology, Changzheng Hospital, Second Military Medical University, Shanghai, China
| | - X Li
- Department of Radiology, Changhai Hospital, Second Military Medical University, Shanghai, China
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Li Z, Song Y, Liu L, Hou N, An X, Zhan D, Li Y, Zhou L, Li P, Yu L, Xia J, Zhang Y, Wang J, Yang X. miR-199a impairs autophagy and induces cardiac hypertrophy through mTOR activation. Cell Death Differ 2015; 24:1205-1213. [PMID: 26160071 PMCID: PMC5520159 DOI: 10.1038/cdd.2015.95] [Citation(s) in RCA: 131] [Impact Index Per Article: 14.6] [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] [Received: 02/03/2015] [Revised: 05/22/2015] [Accepted: 06/04/2015] [Indexed: 12/18/2022] Open
Abstract
Basal autophagy is tightly regulated by transcriptional and epigenetic factors to maintain cellular homeostasis. Dysregulation of cardiac autophagy is associated with heart diseases, including cardiac hypertrophy, but the mechanism governing cardiac autophagy is rarely identified. To analyze the in vivo function of miR-199a in cardiac autophagy and cardiac hypertrophy, we generated cardiac-specific miR-199a transgenic mice and showed that overexpression of miR-199a was sufficient to inhibit cardiomyocyte autophagy and induce cardiac hypertrophy in vivo. miR-199a impaired cardiomyocyte autophagy in a cell-autonomous manner by targeting glycogen synthase kinase 3β (GSK3β)/mammalian target of rapamycin (mTOR) complex signaling. Overexpression of autophagy related gene 5 (Atg5) attenuated the hypertrophic effects of miR-199a overexpression on cardiomyocytes, and activation of autophagy using rapamycin was sufficient to restore cardiac autophagy and decrease cardiac hypertrophy in miR-199a transgenic mice. These results reveal a novel role of miR-199a as a key regulator of cardiac autophagy, suggesting that targeting miRNAs controlling autophagy as a potential therapeutic strategy for cardiac disease.
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Affiliation(s)
- Z Li
- State Key Laboratory of Proteomics, Collaborative Innovation Center for Cardiovascular Disorders, Genetic Laboratory of Development and Disease, Institute of Biotechnology, Beijing, China
| | - Y Song
- Institute of Vascular Medicine, Peking University Third Hospital and Key Laboratory of Molecular Cardiovascular Sciences, Ministry of Education, Key Laboratory of Cardiovascular Molecular Biology and Regulatory Peptides, Ministry of Health, Beijing, China
| | - L Liu
- State Key Laboratory of Proteomics, Collaborative Innovation Center for Cardiovascular Disorders, Genetic Laboratory of Development and Disease, Institute of Biotechnology, Beijing, China
| | - N Hou
- State Key Laboratory of Proteomics, Collaborative Innovation Center for Cardiovascular Disorders, Genetic Laboratory of Development and Disease, Institute of Biotechnology, Beijing, China
| | - X An
- Institute of Vascular Medicine, Peking University Third Hospital and Key Laboratory of Molecular Cardiovascular Sciences, Ministry of Education, Key Laboratory of Cardiovascular Molecular Biology and Regulatory Peptides, Ministry of Health, Beijing, China
| | - D Zhan
- The First Hospital Affiliated to the Chinese PLA General Hospital, Beijing, China
| | - Y Li
- State Key Laboratory of Biomembrane and Membrane Biotechnology, Tsinghua University-Peking University Joint Center for Life Sciences, School of Life Sciences, Tsinghua University, Beijing, China
| | - L Zhou
- MOE key laboratory of Bioinformatics and Tsinghua-Peking Center for Life Sciences, School of Life Sciences, Tsinghua University, Beijing, China
| | - P Li
- MOE key laboratory of Bioinformatics and Tsinghua-Peking Center for Life Sciences, School of Life Sciences, Tsinghua University, Beijing, China
| | - L Yu
- State Key Laboratory of Biomembrane and Membrane Biotechnology, Tsinghua University-Peking University Joint Center for Life Sciences, School of Life Sciences, Tsinghua University, Beijing, China
| | - J Xia
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Y Zhang
- Institute of Vascular Medicine, Peking University Third Hospital and Key Laboratory of Molecular Cardiovascular Sciences, Ministry of Education, Key Laboratory of Cardiovascular Molecular Biology and Regulatory Peptides, Ministry of Health, Beijing, China
| | - J Wang
- State Key Laboratory of Proteomics, Collaborative Innovation Center for Cardiovascular Disorders, Genetic Laboratory of Development and Disease, Institute of Biotechnology, Beijing, China
| | - X Yang
- State Key Laboratory of Proteomics, Collaborative Innovation Center for Cardiovascular Disorders, Genetic Laboratory of Development and Disease, Institute of Biotechnology, Beijing, China
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Qian F, Ogundiran T, Hou N, Morhason-Bello I, Ademola S, Ojengbede O, Olopade O, Huo D, Morhason-Bello I, Ademola S, Ojengbede O, Olopade O, Huo D. Association of alcohol consumption and breast cancer risk among women in
three sub-Saharan African countries. Ann Glob Health 2014. [DOI: 10.1016/j.aogh.2014.08.084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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21
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Shen Z, Hou N, Jin M, Qiu Z, Wang J, Zhang B, Wang X, Wang J, Zhou D, Li J. A novel enzyme-linked immunosorbent assay for detection of Escherichia coli O157:H7 using immunomagnetic and beacon gold nanoparticles. Gut Pathog 2014; 6:14. [PMID: 24864164 PMCID: PMC4033681 DOI: 10.1186/1757-4749-6-14] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/26/2014] [Accepted: 05/14/2014] [Indexed: 12/31/2022] Open
Abstract
This paper presents a functional nanoparticle-enhanced enzyme-linked immunosorbent assay (FNP-ELISA) for detection of enterohemorrhagic Escherichia coli (EHEC) O157:H7. Immunomagnetic nanoparticles (IMMPs) conjugated with monoclonal anti-O157:H7 antibody were used to capture E. coli O157:H7. Beacon gold nanoparticles (B-GNPs) coated with polyclonal anti-O157:H7 and biotin single-stranded DNA (B-DNA) were then subjective to immunoreaction with E. coli O157:H7, which was followed by streptavidin-horseradish peroxidase (Strep-HRP) conjugated with B-GNPs based on a biotin-avidin system. The solutions containing E. coli O157:H7, IMMPs, B-GNPs, and Strep-HRP were collected for detecting color change. The signal was significantly amplified with detection limits of 68 CFU mL-1 in PBS and 6.8 × 102 to 6.8 × 103 CFU mL-1 in the food samples. The FNP-ELISA method developed in this study was two orders of magnitude more sensitive than immunomagnetic separation ELISA (IMS-ELISA) and four orders of magnitude more sensitive than C-ELISA. The entire detection process of E. coli O157:H7 lasted only 3 h, and thus FNP-ELISA is considered as a time-saving method.
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Affiliation(s)
- Zhiqiang Shen
- Tianjin Institute of Health and Environmental Medicine, Key Laboratory of Risk Assessment and Control for Environment and Food Safety, Tianjin 300050, China
| | - Nannan Hou
- Tianjin Institute of Health and Environmental Medicine, Key Laboratory of Risk Assessment and Control for Environment and Food Safety, Tianjin 300050, China
| | - Min Jin
- Tianjin Institute of Health and Environmental Medicine, Key Laboratory of Risk Assessment and Control for Environment and Food Safety, Tianjin 300050, China
| | - Zhigang Qiu
- Tianjin Institute of Health and Environmental Medicine, Key Laboratory of Risk Assessment and Control for Environment and Food Safety, Tianjin 300050, China
| | - Jingfeng Wang
- Tianjin Institute of Health and Environmental Medicine, Key Laboratory of Risk Assessment and Control for Environment and Food Safety, Tianjin 300050, China
| | - Bin Zhang
- Tianjin Institute of Health and Environmental Medicine, Key Laboratory of Risk Assessment and Control for Environment and Food Safety, Tianjin 300050, China
| | - Xinwei Wang
- Tianjin Institute of Health and Environmental Medicine, Key Laboratory of Risk Assessment and Control for Environment and Food Safety, Tianjin 300050, China
| | - Jie Wang
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing 100071, China
| | - Dongsheng Zhou
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing 100071, China
| | - Junwen Li
- Tianjin Institute of Health and Environmental Medicine, Key Laboratory of Risk Assessment and Control for Environment and Food Safety, Tianjin 300050, China
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Sighoko D, Hou N, Ogundiran T, Adebamowo C, Ademola A, Ojengbede O, Anetor I, Akinleye S, Ndom P, Gakwaya A, Huo D, Olopade OI. Abstract P3-06-13: Transient increase in breast cancer risk after a full term pregnancy among African women. Cancer Res 2013. [DOI: 10.1158/0008-5472.sabcs13-p3-06-13] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background
African women affected by breast cancer (BC) have high parity with five children or more, are relatively young at first full term pregnancy (FFTP), are diagnosed at a young age and are often premenopausal at diagnosis. While several studies have assessed the role of reproductive factors for BC risk among African women, none of them have assessed whether there is dual effect of age at full term pregnancy (FTP). In this communications, using a large dataset from an on-going hospital-based case-control study, we examine the role of age at full term pregnancy on breast cancer risk among African women.
Methods
The study includes sites in Nigeria (University College Hospital, Ibadan), Cameroon (Yaoundé General Hospital) and Uganda (Breast Clinic of Mulago Hospital of Kampala). It was initiated in 1998 in Nigeria and extended to Cameroon and Uganda in 2011. Cases were consecutive females diagnosed with invasive BC. Controls were recruited from the community or within the hospital and have never being diagnosed with any cancer. Cases and controls were aged 18 years or more and gave informed consent. Full term pregnancy was defined as a pregnancy that lasted at least 7 months and included both live birth and stillbirth. Logistic regression models were used to assess the effects of age at first and second FTP, and their interaction with current age on BC risk. Age at menarche, parity, body mass index and hormone contraception use were included in the models.
Results
The study includes 1668 cases and 2399 controls recruited between 1998 and May 2013. Mean duration of live birth was 9 months (SD±0.52) and 8.8 months (SD±0.66) for a stillbirth. Overall, the mean age at FFTP was 23 years (SD±4.91) for both cases and controls. Compared to nulliparous women, parous women who had FFTP at 20 years have increased risk (OR = 1.59, CI 95%, 1.16-2.21) to develop BC in the year following the pregnancy. Up to 5 years following the FFTP, this OR is 1.38 (CI 95%, 1.06-1.80) while it is 0.77 (CI 95%, 0.62-0.95) 25 years later. This observation was also true for parous women who have had their FFTP at 25, 30, or 35 years. Moreover, a similar pattern was observed when comparing uniparous women to women with 2 or more children.
Conclusion
Our results show a transient increase in risk of BC after a full term pregnancy which declined and became protective over time. This observation is consistent with the effect of pregnancy on BC that has been described in other populations and may partially explain the current profile of breast cancer among African women.
Citation Information: Cancer Res 2013;73(24 Suppl): Abstract nr P3-06-13.
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Affiliation(s)
- D Sighoko
- The University of Chicago, Chicago, IL; The University of Ibadan, Ibadan, Nigeria; University of Maryland, Baltimore, MD; Institute of Human Virology, Abuja, Nigeria; Healthy Life for All Foundation, Ibadan, Nigeria; Yaoundé General Hospital, Yaounde, Cameroon; Mulago Hospital, Kampala, Uganda
| | - N Hou
- The University of Chicago, Chicago, IL; The University of Ibadan, Ibadan, Nigeria; University of Maryland, Baltimore, MD; Institute of Human Virology, Abuja, Nigeria; Healthy Life for All Foundation, Ibadan, Nigeria; Yaoundé General Hospital, Yaounde, Cameroon; Mulago Hospital, Kampala, Uganda
| | - T Ogundiran
- The University of Chicago, Chicago, IL; The University of Ibadan, Ibadan, Nigeria; University of Maryland, Baltimore, MD; Institute of Human Virology, Abuja, Nigeria; Healthy Life for All Foundation, Ibadan, Nigeria; Yaoundé General Hospital, Yaounde, Cameroon; Mulago Hospital, Kampala, Uganda
| | - C Adebamowo
- The University of Chicago, Chicago, IL; The University of Ibadan, Ibadan, Nigeria; University of Maryland, Baltimore, MD; Institute of Human Virology, Abuja, Nigeria; Healthy Life for All Foundation, Ibadan, Nigeria; Yaoundé General Hospital, Yaounde, Cameroon; Mulago Hospital, Kampala, Uganda
| | - A Ademola
- The University of Chicago, Chicago, IL; The University of Ibadan, Ibadan, Nigeria; University of Maryland, Baltimore, MD; Institute of Human Virology, Abuja, Nigeria; Healthy Life for All Foundation, Ibadan, Nigeria; Yaoundé General Hospital, Yaounde, Cameroon; Mulago Hospital, Kampala, Uganda
| | - O Ojengbede
- The University of Chicago, Chicago, IL; The University of Ibadan, Ibadan, Nigeria; University of Maryland, Baltimore, MD; Institute of Human Virology, Abuja, Nigeria; Healthy Life for All Foundation, Ibadan, Nigeria; Yaoundé General Hospital, Yaounde, Cameroon; Mulago Hospital, Kampala, Uganda
| | - I Anetor
- The University of Chicago, Chicago, IL; The University of Ibadan, Ibadan, Nigeria; University of Maryland, Baltimore, MD; Institute of Human Virology, Abuja, Nigeria; Healthy Life for All Foundation, Ibadan, Nigeria; Yaoundé General Hospital, Yaounde, Cameroon; Mulago Hospital, Kampala, Uganda
| | - S Akinleye
- The University of Chicago, Chicago, IL; The University of Ibadan, Ibadan, Nigeria; University of Maryland, Baltimore, MD; Institute of Human Virology, Abuja, Nigeria; Healthy Life for All Foundation, Ibadan, Nigeria; Yaoundé General Hospital, Yaounde, Cameroon; Mulago Hospital, Kampala, Uganda
| | - P Ndom
- The University of Chicago, Chicago, IL; The University of Ibadan, Ibadan, Nigeria; University of Maryland, Baltimore, MD; Institute of Human Virology, Abuja, Nigeria; Healthy Life for All Foundation, Ibadan, Nigeria; Yaoundé General Hospital, Yaounde, Cameroon; Mulago Hospital, Kampala, Uganda
| | - A Gakwaya
- The University of Chicago, Chicago, IL; The University of Ibadan, Ibadan, Nigeria; University of Maryland, Baltimore, MD; Institute of Human Virology, Abuja, Nigeria; Healthy Life for All Foundation, Ibadan, Nigeria; Yaoundé General Hospital, Yaounde, Cameroon; Mulago Hospital, Kampala, Uganda
| | - D Huo
- The University of Chicago, Chicago, IL; The University of Ibadan, Ibadan, Nigeria; University of Maryland, Baltimore, MD; Institute of Human Virology, Abuja, Nigeria; Healthy Life for All Foundation, Ibadan, Nigeria; Yaoundé General Hospital, Yaounde, Cameroon; Mulago Hospital, Kampala, Uganda
| | - OI Olopade
- The University of Chicago, Chicago, IL; The University of Ibadan, Ibadan, Nigeria; University of Maryland, Baltimore, MD; Institute of Human Virology, Abuja, Nigeria; Healthy Life for All Foundation, Ibadan, Nigeria; Yaoundé General Hospital, Yaounde, Cameroon; Mulago Hospital, Kampala, Uganda
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Yan ZZ, Hou N, Tang Y, Liang HD. Synthesis and crystal structure of a dinuclear praseodymium nitrate complex. RUSS J COORD CHEM+ 2013. [DOI: 10.1134/s1070328413100102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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24
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Ou C, Pan Q, Chen X, Hou N, He C. Erratum to “Protocatechuic acid, a new active substance against the challenge of avian infectious bursal disease virus” [Poult. Sci. 91(7):1604–1609]. Poult Sci 2012. [DOI: 10.3382/ps.2012-91-10-2722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Ou CB, Pan Q, Pang Q, Chen X, Hou N, He C. Protocatechuic acid, a new active substance against the challenge of avian infectious bursal disease virus. Poult Sci 2012; 91:1604-9. [PMID: 22700505 DOI: 10.3382/ps.2011-02069] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
The present study aims to investigate the potential antiviral activity of protocatechuic acid (PCA) and its mechanism against infectious bursal disease virus (IBDV) infection. In the curative test, dosages of PCA of 40, 20, and 10 mg/kg, the survival rate was 90, 90, and 60%, respectively, and the BW gain was 36.63, 31.85, and 51.8%, respectively. The survival rate for the Astragalus polysaccharide (ASP) group was significantly lower than those of the birds treated with 20 mg/kg or 40 mg/kg of PCA. The bursa indeces of chickens in 40 mg/kg, 20 mg/kg, and ASP groups were significantly higher than that of the infection group, whereas a significant increase of the spleen index was found in birds with 20 mg/kg PCA in comparison with other challenged groups. The birds treated with 20 mg/kg or 40 mg/kg of 3,4-dihydroxybenzoic acid also showed slightly higher levels of IBDV clearance in the bursa of Fabricius. Furthermore, the chickens treated with 20 mg/kg of PCA induced a significant lymphocyte proliferation and a significant increase in the CD4+/CD8+ ratio in comparison with the ASP chickens. These results imply that chickens treated with 20 mg/kg of PCA for 5 d could effectively induce active nonspecific immune responses against the IBDV infection.
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Affiliation(s)
- C B Ou
- College of Veterinary Medicine, China Agricultural University, Beijing, China
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Hou N. Tissue-Engineered Trachea Using Perfusion-Decellularized Technique and Mesenchymal Stem Cells in a Rabbit Model. Skull Base Surg 2012. [DOI: 10.1055/s-0032-1314345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Xun P, Hou N, Daviglus M, Liu K, Morris JS, Shikany JM, Sidney S, Jacobs DR, He K. Fish oil, selenium and mercury in relation to incidence of hypertension: a 20-year follow-up study. J Intern Med 2011; 270:175-86. [PMID: 21205024 PMCID: PMC3070957 DOI: 10.1111/j.1365-2796.2010.02338.x] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
OBJECTIVES Long-chain omega-3 polyunsaturated fatty acids (LCω3PUFAs), selenium (Se) and mercury (Hg) are three important components in fish. The cardioprotective effect of LCω3PUFA intake has been recognized; however, the hypothesis that this benefit may be greatest with high Se and low Hg levels has not been investigated. DESIGN A cohort of 4508 American adults aged 18-30, without hypertension at baseline in 1985, were enrolled. Six follow-ups were conducted at examinations in 1987, 1990, 1992, 1995, 2000 and 2005. Diet was assessed by a validated interviewer-administered quantitative food frequency questionnaire at exams in 1985, 1992 and 2005. Incident hypertension was defined as first occurrence at any follow-up examination of systolic blood pressure (BP) ≥ 140 mmHg, diastolic BP ≥ 90 mmHg or taking antihypertensive medication. Toenail clippings were collected in 1987, and Se and Hg levels were quantified by instrumental neutron-activation analysis. RESULT Participants in the highest LCω3PUFA intake quartile had a significantly lower incidence of hypertension (hazard ratio: 0.65; 95% CI: 0.53-0.79; P(trend) < 0.01) compared to those in the lowest quartile after adjustment for potential confounders. Docosahexaenoic acid showed a greater inverse association than eicosapentaenoic acid. The inverse association of LCω3PUFA intake with hypertension appeared more pronounced at higher Se and lower Hg levels, although interaction tests were statistically nonsignificant. CONCLUSIONS Our findings indicated that LCω3PUFA intake was inversely associated with incidence of hypertension. The prior hypothesis that the potential antihypertensive effect of LCω3PUFA intake varies depending on joint levels of Se and Hg received modest support and cannot be ruled out.
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Affiliation(s)
- P Xun
- Department of Nutrition, Gillings School of Global Public Health and School of Medicine, North Carolina, Chapel Hill, NC 27599, USA
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Bhatta S, Hou N, Huo D, Polite BN, Fleming GF, Olopade OI, Hong S. Compliance to adjuvant hormone therapy for black and white women with breast cancer. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.1555] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Huo D, Hou N, Ogundiran T, Olopade OI. Abstract P3-11-10: Risk Factors for Pregnancy-Associated Breast Cancer: A Report from the Nigerian Breast Cancer Study. Cancer Res 2010. [DOI: 10.1158/0008-5472.sabcs10-p3-11-10] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: It is known that pregnancy has a dual effect on breast cancer risk, with increased risk of breast cancer in short term and decreased risk in the long run. Pregnancy-associated breast cancer (PABC), occurring during pregnancy and several years postpartum, has poor prognosis and is challenging in clinical management. However, risk factors for PABC, except for pregnancy per se, are less understood. Other reproductive factors including age at menarche and age at first live birth may play important roles in the development of PABC.
Methods: The study is based on the Nigerian Breast Cancer Study, a case-control study of breast cancer conducted in Ibadan, Nigeria, between 1998 and 2009. In-person interviews were conducted using structured questionnaires to collect detailed epidemiologic data. Pre-menopausal women who were 50 years old or younger were eligible to this analysis. The breast cancer cases were divided in two groups: PABC (diagnosed during pregnancy or within 5 years postpartum) and non-PABC. Polytomous logistic regression was used to estimate odds ratios (ORs) and 95% confidence intervals (CI), contrasting each group of cases versus controls. Age in 3-year category, ethnicity, education, family history of breast cancer, history of benign breast disease, hormonal contraceptive use, alcohol drinking, height, and body mass index were adjusted in the multivariate models.
Results: In total, 1440 women were eligible to this study, including 311 PABC cases, 357 non-PABC cases, and 772 healthy controls. In the multivariate analysis adjusting aforementioned potential confounders, age at menarche was inversely associated with non-PABC (p=0.002, Table 1) but only trend towards significance for PABC (p=0.12). Age at first live birth was associated with lower risk of non-PABC but was associated with elevated risk of PABC.
Table 1. Odds ratios and 95% confidence intervals for PABC and non-PABC
Conclusions: We found menarche at older age may be protective against all premenopausal breast cancer, but age at first live birth has different role in the development of pregnancy-associated breast cancer and other premenopausal breast cancer in Nigerian women. The findings suggest that the trend towards delayed child-bearing may increase in the occurrence of breast cancer complicated by pregnancy.
Citation Information: Cancer Res 2010;70(24 Suppl):Abstract nr P3-11-10.
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Affiliation(s)
- D Huo
- University of Chicago, IL; University of Ibadan, Nigeria
| | - N Hou
- University of Chicago, IL; University of Ibadan, Nigeria
| | - T Ogundiran
- University of Chicago, IL; University of Ibadan, Nigeria
| | - OI. Olopade
- University of Chicago, IL; University of Ibadan, Nigeria
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Yaemsiri S, Hou N, Slining MM, He K. Growth rate of human fingernails and toenails in healthy American young adults. J Eur Acad Dermatol Venereol 2010; 24:420-3. [DOI: 10.1111/j.1468-3083.2009.03426.x] [Citation(s) in RCA: 161] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Luan F, Liu H, Gao L, Liu J, Sun Z, Ju Y, Hou N, Guo C, Liang X, Zhang L, Sun W, Ma C. Hepatitis B virus protein preS2 potentially promotes HCC development via its transcriptional activation of hTERT. Gut 2009; 58:1528-37. [PMID: 19651630 DOI: 10.1136/gut.2008.174029] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
BACKGROUNDS AND AIMS Telomerase is significantly reactivated in hepatitis B virus (HBV)-associated hepatocellular carcinoma (HCC). Our previous studies showed that the transactivation unit of HBV surface (S) gene, preS2, could upregulate human telomerase reverse transcriptase (hTERT) expression and telomerase activity of HepG2 cells. Here, we aim to explore the functions, and the underlying mechanisms, of this preS2-mediated hTERT upregulation during HCC development. METHODS An antisense blocking assay was performed on HBV-integrated HepG2.2.15 cells. The expression of hTERT was examined in clinical samples to test the role of the preS2-mediated hTERT upregulation in HCC development in vivo. In order to explore the mechanisms of preS2-mediated hTERT upregulation, co-transfection, reporter assays and electrophoretic mobility shift assays (EMSA) were performed. RESULTS Blocking preS2 expression reduced hTERT expression, telomerase activity, cell proliferation and tumorigenicity of HepG2.2.15. A region located between -349 and -329 bp upstream of the transcription initiation site of hTERT was identified as responsible for the preS2-mediated effect. preS2 interacted with the preS2-responsible region (PRR) and activated the hTERT promoter. Importantly, hTERT was also highly expressed in preS2-positive human HCC samples. All these findings strongly suggest that preS2 may promote HCC development via hTERT activation. CONCLUSIONS HBV protein preS2 upregulates hTERT via the PRR element in promoting HCC development.
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Affiliation(s)
- F Luan
- Institute of Immunology/Key Laboratory for Experimental Teratology of Chinese Ministry of Education, Shandong University School of Medicine, Shandong, 250012 PR China
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Li CY, Zhan YQ, Li W, Xu CW, Xu WX, Yu DH, Peng RY, Cui YF, Yang X, Hou N, Li YH, Dong B, Sun HB, Yang XM. Overexpression of a hematopoietic transcriptional regulator EDAG induces myelopoiesis and suppresses lymphopoiesis in transgenic mice. Leukemia 2007; 21:2277-86. [PMID: 17690693 DOI: 10.1038/sj.leu.2404901] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [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: 12/21/2022]
Abstract
Erythroid differentiation-associated gene (EDAG) is a hematopoietic tissue-specific gene that is highly expressed in the earliest CD34+ lin- bone marrow (BM) cells and involved in the proliferation and differentiation of hematopoietic cells. To investigate the role of EDAG in hematopoiesis, we established an EDAG transgenic mouse model driven by human CD11a promoter. The transgenic mice showed increased mortality with severe organ infiltration by neutrophils, and the homeostasis of hematopoiesis was broken. The myelopoiesis was enhanced with expansion of myeloid cells in BM, increased peripheral granulocytes and extramedullary myelopoiesis in spleen. In contrast to myeloid cells, the lymphoid commitment was severely impaired with the B lymphopoiesis blocked at the transition from pro/pre-B I to pre-B II stage in BM and T thymocytes development blocked at the most immature stage (DN I). Moreover, we showed that EDAG was a transcriptional regulator which had transactivation activity and regulated the expression of several key transcription factors such as PU.1 and Pax5 in transgenic hematopoietic stem cells. These data suggested that EDAG was a key transcriptional regulator in maintaining the homeostasis of hematopoietic lineage commitment.
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Affiliation(s)
- C-Y Li
- Department of Biochemistry and Molecular Biology, Beijing Institute of Radiation Medicine, Beijing, China
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Khan S, Lankes HA, Patil D, Bryk M, Nayar R, Hou N, Krontiras H, Rademaker A. Serial ductal lavage for biomarker assessment in a phase 2 prevention study with tamoxifen. J Clin Oncol 2007. [DOI: 10.1200/jco.2007.25.18_suppl.1509] [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: 11/20/2022] Open
Abstract
1509 Background: Effective methods of epithelial sampling to measure breast-specific biomarkers will aid the rapid evaluation of new preventive interventions. We report a proof-of-principle Phase 2 study to assess the utility of ductal lavage (DL) to measure biomarkers using tamoxifen (TAM) as the gold standard prevention agent. Methods: We enrolled women with a 5-year Gail risk >1.6 or the unaffected breast of women with breast cancer =1 cm. After entry DL, participants chose TAM or observation (OBS), and underwent repeat DL 6 months later. Samples were processed for cytology and immunohistochemistry for ER and Ki-67 labeling indices (LIs). If =1 duct showed atypia, the sample was called atypical. LI data were analyzed by duct (comparing the same duct at 2 time points) and by woman (comparing the mean of all ducts at 2 time points). Results: Of 168 women recruited, 135 (80%) underwent entry and repeat DL; 82 (49%) had sufficient cells for analysis at both time points (mean age 50 years, mean Gail 3.0). 44 chose observation and 38 chose TAM. Cytologic findings, by woman and by duct, showed significantly greater net improvement (from atypical to benign) in the TAM than in the OBS group (see table ). The repeat ER and Ki-67 LIs showed a significant reduction from entry within the TAM group (p=0.01 and 0.0001, respectively), but not in the OBS group when analysed by duct. Similarly, in analyses by woman, the ER and Ki-67 LIs decreased from entry to repeat DL within the TAM group (p=0.046 and 0.004 respectively), with minimal changes in the observation group. Between-group data are shown in the table and are similar to the within- group differences. Conclusions: Using DL, we saw the expected changes in TAM-related biomarkers, with stronger reductions in duct-to- duct comparisons than when findings were averaged across ducts in individual women. However, the 51% attrition rate of subjects from recruitment to biomarker analyses, along with the expense of DL, raises questions regarding the efficiency of this procedure in biomarker assessment over time. [Table: see text] No significant financial relationships to disclose.
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Affiliation(s)
- S. Khan
- Northwestern Medical Faculty Foundation, Chicago, IL; Northwestern University, Chicago, IL; Northwestern Memorial Hospital, Chicago, IL; University of Alabama, Birmingham, AL
| | - H. A. Lankes
- Northwestern Medical Faculty Foundation, Chicago, IL; Northwestern University, Chicago, IL; Northwestern Memorial Hospital, Chicago, IL; University of Alabama, Birmingham, AL
| | - D. Patil
- Northwestern Medical Faculty Foundation, Chicago, IL; Northwestern University, Chicago, IL; Northwestern Memorial Hospital, Chicago, IL; University of Alabama, Birmingham, AL
| | - M. Bryk
- Northwestern Medical Faculty Foundation, Chicago, IL; Northwestern University, Chicago, IL; Northwestern Memorial Hospital, Chicago, IL; University of Alabama, Birmingham, AL
| | - R. Nayar
- Northwestern Medical Faculty Foundation, Chicago, IL; Northwestern University, Chicago, IL; Northwestern Memorial Hospital, Chicago, IL; University of Alabama, Birmingham, AL
| | - N. Hou
- Northwestern Medical Faculty Foundation, Chicago, IL; Northwestern University, Chicago, IL; Northwestern Memorial Hospital, Chicago, IL; University of Alabama, Birmingham, AL
| | - H. Krontiras
- Northwestern Medical Faculty Foundation, Chicago, IL; Northwestern University, Chicago, IL; Northwestern Memorial Hospital, Chicago, IL; University of Alabama, Birmingham, AL
| | - A. Rademaker
- Northwestern Medical Faculty Foundation, Chicago, IL; Northwestern University, Chicago, IL; Northwestern Memorial Hospital, Chicago, IL; University of Alabama, Birmingham, AL
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Evens AM, Altman JK, Mittal BB, Hou N, Rademaker A, Patton D, Kaminer L, Williams S, Duffey S, Variakojis D, Singhal S, Tallman MS, Mehta J, Winter JN, Gordon LI. Phase I/II trial of total lymphoid irradiation and high-dose chemotherapy with autologous stem-cell transplantation for relapsed and refractory Hodgkin's lymphoma. Ann Oncol 2007; 18:679-88. [PMID: 17307757 DOI: 10.1093/annonc/mdl496] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND The standard approach to treatment of relapsed/refractory Hodgkin's lymphoma (HL) is high-dose chemotherapy conditioning followed by autologous hematopoietic stem-cell transplantation (aHSCT). We report the results of a prospective phase I/II clinical trial of accelerated hyperfractionated total lymphoid irradiation (TLI) immediately followed by high-dose chemotherapy for relapsed/refractory HL. PATIENTS AND METHODS Forty-eight patients underwent aHSCT with either sequential TLI/chemotherapy (n = 32) or chemotherapy-alone conditioning (n = 16), based on prior radiation exposure. The first 22 patients enrolled on trial received escalating doses of etoposide (1600-2100 mg/m(2)) with high-dose carboplatin and cyclophosphamide. RESULTS No dose-limiting toxicity was seen and TLI/chemotherapy was well tolerated. The 5-year event-free survival (EFS) estimate for all patients was 44% with overall survival (OS) of 48%. Five-year EFS and OS for the TLI/chemotherapy group was 63% and 61%, respectively, compared with 6% and 27%, respectively, for the chemotherapy-alone group (P < 0.0001 and P = 0.04, respectively). Patients with primary induction failure HL who received TLI/chemotherapy had 5-year EFS and OS rate of 83%. The 100-day treatment-related mortality was 4.2% and two secondary cancers were seen. Significant factors predicting survival by multivariate analysis included TLI/chemotherapy conditioning and B symptoms at relapse. CONCLUSIONS Sequential TLI/chemotherapy conditioning for relapsed/refractory HL is safe and associated with excellent long-term survival rates.
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Affiliation(s)
- A M Evens
- Division of Hematology/Oncology, Hematopoietic Stem Cell Transplant Program and Lymphoma Program, Feinberg School of Medicine, Northwestern University, 676 North St. Clair, Chicago, IL 60611, USA
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35
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Zhao P, Hou N, Lu Y. Fhit protein is preferentially expressed in the nucleus of monocyte-derived cells and its possible biological significance. Histol Histopathol 2006; 21:915-23. [PMID: 16763940 DOI: 10.14670/hh-21.915] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The FHIT gene encompassing the most active common human fragile region, FRA3B, has been proposed as a tumour suppressor gene for important common human carcinomas. The mechanism in which Fhit protein exerts its tumour suppressor activity is still obscure. To further understand the Fhit function associated with its intracellular localization we have investigated its cellular localization and distribution in human normal and cancerous tissues. Data of 1500 samples from immunohistochemistry showed that Fhit protein was preferentially and stably expressed in the nucleus of monocyte-derived or histiocytic lineage cells including monocytes of the circulating blood cells, macrophages of the connective tissue, Kupffer cells of the liver, alveolar macrophages or dust cells of the lung, osteoclasts of bone, microglia of the brain, epithelioid cells under chronic inflammatory conditions, foreign-body giant cells, Langerhans cells of the epidermis and dendritic cells of various kinds of human tissue, although the protein could also be infrequently observed in the nucleus of some quiescent epithelial cells. In active cells other than histiocytes, Fhit protein was detected either in cytoplasm or was negative. Neurons expressed Fhit strongly and neuroglial cells did so moderately but only in the cytoplasm. There was no Fhit protein detected in the neutrophils, lymphocytes, plasma cells and lipocytes. The present data showes that the stable nuclear localization of Fhit is not only a special marker for histiocytes with various morphologies but also may suggest the other function concerning Fhit as a signaling molecule related to anti-proliferation function. The detailed biological function related to nuclear localization of Fhit protein in the histiocytes remains to be further studied.
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Affiliation(s)
- P Zhao
- Department of Pathology, Chinese People's Liberation Army General Hospital, Beijing, China.
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36
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Gorla SR, Hou N, Acharya S, Rademaker AW, Staradub V, Khan SA, Morrow M. Can we identify women at risk for receptor (ER) positive breast cancer. Ann Surg Oncol 2004. [DOI: 10.1007/bf02524120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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37
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Liu AJ, Hou N, Chen LZ. [Expression of glucose transporter-1 in endometrial hyperplasia and well-differentiated endometrioid adenocarcinoma]. Zhongguo Yi Xue Ke Xue Yuan Xue Bao 2001; 23:398-400. [PMID: 12940086] [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: 03/04/2023]
Abstract
OBJECTIVE To investigate the expression of glucose transporter-1 (GLUT1) in endometrial hyperplasia and well-differentiated endometrioid adenocarcinomas. METHODS Sixty formalin fixed, paraffin-embedded sections of various endometrial hyperplasia and well-differentiated endometrioid adenocarcinomas were immunostained with rabbit anti-GLUT1 antibody using streptavidin-biotin method. RESULTS Two of 12 simple hyperplasia and one of seven complex hyperplasia without atypia were focally positive in metaplastic epithelia. All complex atypical hyperplasia showed positive in varied degree, and 26 among 28 cases of adenocarcinoma were stained positively. CONCLUSIONS Overexpression of GLUT1 is a consistent feature of atypical hyperplasia and adenocarcinoma. GLUT1 immunostaining is found to be helpful in distinguishing hyperplasia with atypia from those without atypia.
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Affiliation(s)
- A J Liu
- Department of Pathology, PLA General Hospital, Beijing 100853, China.
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38
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Liu CG, Wu YW, Hou N, Zhang CL, Zhang Y, Li XM, Li ZC, Yao R. [Studies of biochemical markers of four isonucleus-alloplasmic lines of common wheat]. Yi Chuan Xue Bao 2001; 28:41-5. [PMID: 11209710] [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: 02/19/2023]
Abstract
The peroxidase isozyme and the soluble peoteins of four isonucleus-alloplasmic lines of common wheat--D2-CA8057 (fertile, BC14), CMS line msD2-CA8057(BC11), CMS line msA-CA8057(BC12), CA8057 (nucleus donor) in different developmental stages were studies by polyacrylamide gel electrophoresis (PAGE) and gradient SDS-PAGE respectively. The peroxidase isozyme of bionucleus-stage anther, milk-stage endosperm and the soluble proteins of bionucleus-stage anther, leaf (the beginning and ending overwinter), dry-seed endosperm among fertile line, msD2-CA8057 and msA-CA8057 were evidently different (but few differences between CA8057 and D2-CA8057). These differences resulted from the pecially-regulated expression of (male-sterile) cytoplasmic genes to nuclear genes and could be used to identify the four isonucleus-alloplasmic lines. These results showed that msD2-CA8057 and msA-CA8057 were two different kinds of new CMS pattern.
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Affiliation(s)
- C G Liu
- State Key Laboratory of Plant Cell Chromosome Engineering, Institute of Genetics, Chinese Academy of Sciences, Beijing 100101, China
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39
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Hou N, Wu YW, Liu CG, Zhang CL, Zhang Y. [Studies of salt tolerance of alloplasmic wheat]. Yi Chuan Xue Bao 2001; 27:325-30. [PMID: 11147351] [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
Using Aegilops crassa cytoplasm wheat as test material, salt tolerance of alloplasmic wheat was identified by tissue culture, nutrient solution culture and artificial saline pond, from calli, seeding stage, recovering stage and mature period. The results showed Ae. crassa cytoplasm lines indicated the difference of salt tolerance in varying degree; the difference of cytoplasm effect among different nucleoplasm combinations showed certain nucleoplasm interaction relation. The salt tolerance of (Ae. crassa)-jian 26 was stronger than that other tested alloplasmic lines. The result demonstrated that at recovering date and at mature period indicated salt tolerance of alloplasmic lines was not only stronger than its nuclear parent but also over control variety. As compared with common wheat, lines having strong salt tolerance were more proportions in tested alloplasmic lines. The study of alloplasmic wheat should be significant for breeding salt tolerance wheat.
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Affiliation(s)
- N Hou
- State Key Laboratory of Plant Cell and Chromosome Engineering, Institute of Genetics, Academia Sinica, Beijing 100101, China
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40
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Lü DY, Fan YL, Yu MM, Tang SX, Hou N, Wang Q. [Regeneration of HNP transgenic alfalfa plants by Agrobacterium mediated gene transfer]. Yi Chuan Xue Bao 2001; 27:331-7. [PMID: 11147352] [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
Transgenic plants regenerated from cotyledons of M. sativa L. infected using Agrobacterium tumefaciens A281 with plasmid pBF649 containing a gene encoding protein of high sulfur-amino acid content (HNP) were obtained successfully. The plants grew and fertiled well in field. Cotyledon explants were better recipient for transformation of M. sativa L. Environment of suitable temperature (15 degrees C) and high humidity on high viability of the plants transplanted into soil were essential conditions.
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Affiliation(s)
- D Y Lü
- Institute of Genetics, Chinese Academy of Sciences, Beijing 100101, China
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41
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Tabuchi K, Adachi I, Doi K, Hou N, Komori T, Nakata Y, Matsui R, Sueyoshi K, Narabayashi I. [Evaluation of 99mTc-MAG3 (mercaptoacetyltriglycine) renography for pediatric patients]. Kaku Igaku 1999; 36:15-22. [PMID: 10087761] [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: 02/11/2023]
Abstract
It is difficult to evaluate renal function with 99mTc-MAG3 renography in both adult and pediatric patients. We examined 109 pediatric patients with various renal diseases using 99mTc-MAG3 renography. Tenal diseases were classified as follows: 9 vesicoureteral reflux, 4 ureteropelvic junctional stenosis, 3 double pelvis, 23 hydronephrosis, 4 glomerulonephritis, 4 nephrotic syndrome, 24 hemolytic uremic syndrome, 10 others; and 24 patients without abnormal findings on other examinations. After hydration and sedation, 100-200 MBq of 99mTe-MAG3 was injected intravenously. All patients were placed in the supine position, and dynamic data acquisition at 12 sec/frame x 100 frames was performed from the back. The renograms were prepared with the ROIs (regions of interest) set to include the entire kidney. Tmax and T1/2 of renograms were measured for 26 kidneys with no abnormal findings. The correlations between Tmax or T1/2 and age (days after birth) were determined by a linear or logarithmic function. The logarithmic function (Y = 7.49 - 0.56 logeX, r2 = 0.134) yielded a higher correlation than did the linear function (Y = 5.16 - 0.00194X, r2 = 0.089) between Tmax and age. For T1/2 and age (days after birth), the linear function (Y = 8.07 - 0.00451X, r2 = 0.222) yielded a higher correlation than the logarithmic function (Y = 11.9 - 0.986 logeX, r2 = 0.192). Our findings suggest that prolonged Tmax is normalized more rapidly than T1/2 after birth in infants. A delayed excretion phase is not suggestive of renal dysfunction, but is characteristic of renograms in pediatric patients. Abnormality was detected in all patients with hydronephrosis using 99mTc-MAG3 renography. On the other hand, a quantitative study was required because renography detected no abnormality for some of patients with disorders of renal parenchyma.
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Affiliation(s)
- K Tabuchi
- Department of Radiology, Osaka Medical College
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42
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Adachi I, Doi K, Komori T, Hou N, Tabuchi K, Matsui R, Sueyoshi K, Utsunomiya K, Narabayashi I. [Clinical usefulness of scatter and attenuation correction for brain single photon emission computed tomography (SPECT) in pediatrics]. Kaku Igaku 1998; 35:1-6. [PMID: 9545678] [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: 02/07/2023]
Abstract
This investigation was undertaken to study clinical usefulness of scatter and attenuation correction (SAC) of brain SPECT in infants to compare the standard reconstruction (STD). The brain SPECT was performed in 31 patients with 19 epilepsy, 5 cerebro-vascular disease, 2 brain tumor, 3 meningitis, 1 hydrocephalus and psychosis (mean age 5.0 +/- 4.9 years old). Many patients was necessary to be injected sedatives for restraining body motion after Technetium-99m hexamethylpropylene amine oxime (99mTc-HMPAO) was injected at the convulsion or rest. Brain SPECT data were acquired with triple detector gamma camera (GCA-9300 Toshiba Japan). These data were reconstructed by filtered backprojection after the raw data were corrected by triple energy windows method of scatter correction and Chang filtered method of attenuation correction. The same data was reconstructed by filtered backprojection without these corrections. Both SAC and STD SPECT images were analyzed by the visual interpretation. The uptake ratio of cerebral basal nuclei was calculated by the counts of the thalamus or lenticular nuclei divided by the cortex. All images of SAC method were excellent than that of STD method. The thalamic uptake ratio in SAC method was higher than that of STD method (1.22 +/- 0.09 > 0.87 +/- 0.22 p < 0.01). The lenticular nuclear uptake ratio in SAC method was higher than that of STD method (1.26 +/- 0.15 > 1.02 +/- 0.16 p < 0.01). Transmission scan is the most suitable method of absorption correction. But the transmission scan is not adequate for examination of children, because this scan needs a lot of time and the infants are exposed by the line source radioisotope. It was concluded that these scatter and absorption corrections were most suitable method for brain SPECT in pediatrics.
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Affiliation(s)
- I Adachi
- Department of Radiology, Osaka Medical College
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43
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Xu HM, Li WH, Hou N, Zhang SG, Li HF, Wang SQ, Yu ZY, Li ZJ, Zeng MY, Zhu GM. Neuroendocrine differentiation in 32 cases of so-called sclerosing hemangioma of the lung: identified by immunohistochemical and ultrastructural study. Am J Surg Pathol 1997; 21:1013-22. [PMID: 9298877 DOI: 10.1097/00000478-199709000-00005] [Citation(s) in RCA: 55] [Impact Index Per Article: 2.0] [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: 02/05/2023]
Abstract
Thirty-two cases of so-called sclerosing hemangioma of the lung observed by light microscopy were further studied by electron microscopy and/or immunohistochemistry. Three histologic patterns were seen: hemangioma-like, papillary, and solid. The only significant component representing the nature of the lesion is characteristic round cells within the stroma in all these patterns, whereas the surface cells lining the papillary projections or cystic spaces are normal or are hyperplastic bronchioloalveolar cells with a few neuroendocrine cells. Immunohistochemical findings showed that the "stromal cells" (tumor cells) were positive for neuroendocrine markers, namely, chromogranin A (19 of 22 cases), neuron-specific enolase (24 of 24), synaptophysin (six of 10), adrenocorticotropic hormone (14 of 15), growth hormone (14 of 15), calcitonin (11 of 15), and gastrin (11 of 14). Besides, some tumor cells were positive for epithelial membrane antigen (four of four), carcinoembryonic antigen (one of four), and vimentin (one of one). All tumor cells were negative for polyclonal antikeratin antibody (25 cases), AE1 (one case), and AE3 (one case). However, in contrast to the "stromal cells," the surface cells of the cystic spaces stained positively for keratin (25 of 25 cases), AE1 (one of one), AE3 (one of one), epithelial membrance antigen (four of four), and carcinoembryonic antigen (four of four); only a few of them expressed neruoendocrine markers. Both surface and tumor cells were negative for factor VIII-related antigen (25 cases), CD31 (one case), and alpha1-antitrypsin (25 cases). Ten cases further studied by electron microscopy and six examined by ultrastructural morphometry showed that the surface cells were mainly type 2 pneumocytes containing many lamellar bodies in the cytoplasm. Lying among them, neuroendocrine cells were occasionally seen. The stromal tumor cells had no lamellar body, but dense core granules (neurosecretory granules) and microtubules. In six cases, 92.3% (345 of 374) of tumor cells contained neurosecretory granules, which were pleomorphic and 73 to 1056 nm in diameter (mean, 302 nm). Two to 193 (mean, 12) neurosecretory granules were found in each tumor cell. Both immunohistochemical findings and ultrastructural evidence indicate that so-called sclerosing hemangioma of the lung is a benign lesion composed of neoplastic neuroendocrine cells with areas of sclerosis. A suggested name for this tumor is benign neuroendocrine tumor of the lung. The differentiation between this tumor and papillary adenoma, bronchioloalveolar carcinoma, or carcinoid tumor of the lung is discussed.
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MESH Headings
- Adenocarcinoma, Bronchiolo-Alveolar/chemistry
- Adenocarcinoma, Bronchiolo-Alveolar/diagnosis
- Adenocarcinoma, Bronchiolo-Alveolar/pathology
- Adenoma/chemistry
- Adenoma/diagnosis
- Adenoma/pathology
- Adrenocorticotropic Hormone/analysis
- Adult
- Aged
- Biomarkers, Tumor/analysis
- Calcitonin/analysis
- Carcinoembryonic Antigen/analysis
- Carcinoid Tumor/chemistry
- Carcinoid Tumor/diagnosis
- Carcinoid Tumor/pathology
- Cell Transformation, Neoplastic/pathology
- Chromogranin A
- Chromogranins/analysis
- Diagnosis, Differential
- Female
- Gastrins/analysis
- Histiocytoma, Benign Fibrous/chemistry
- Histiocytoma, Benign Fibrous/pathology
- Histiocytoma, Benign Fibrous/ultrastructure
- Human Growth Hormone/analysis
- Humans
- Immunohistochemistry
- Lung Neoplasms/chemistry
- Lung Neoplasms/pathology
- Lung Neoplasms/ultrastructure
- Male
- Microscopy, Electron
- Middle Aged
- Neuroendocrine Tumors/chemistry
- Neuroendocrine Tumors/pathology
- Neuroendocrine Tumors/ultrastructure
- Phosphopyruvate Hydratase/analysis
- Synaptophysin/analysis
- von Willebrand Factor/analysis
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Affiliation(s)
- H M Xu
- Department of Pathology, The General Hospital of PLA, Beijing, People's Republic of China
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44
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Adachi I, Hou N, Komori T, Tabuchi K, Matsui R, Sueyoshi K, Narabayashi I, Matsuda S, Tamoto S. [Usefulness of 99mTc-tetrofosmin myocardial scintigraphy before and after coronary intervention]. Kaku Igaku 1997; 34:363-9. [PMID: 9267121] [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: 02/05/2023]
Abstract
Dipyridamole-loading 99mTc-tetrofosmin myocardial scintigraphy was performed for patients with coronary artery disease who underwent percutaneous transluminal coronary angioplasty (PTCA) in order to examine whether SPECT imaging prior to treatment is useful for the determination of prognosis after coronary intervention. Thirty-six patients including 9 with angina pectoris (AP), 22 with old myocardial infarction (OMI) and 5 OMI with AP were underwent dipyridamole-loading 99mTc-tetrofosmin myocardial SPECT before and after coronary intervention. The length of follow-up was 185 +/- 107 days after PTCA. Improvement of myocardial uptake was observed on myocardial SPECT in all cases with AP. Improvement of the myocardial uptake was observed 50% (4/8) of patients with OMI who had no myocardial viability. It was suggested that the improvement of myocardial uptake after PTCA was due to incomplete fill-in in cases with AP and that the presence of fill-in was important for level of fill-in in patients with AP. The improvement of myocardial uptake in the scar tissue in patients with OMI contributed to the hibernating myocardium. We concluded that correct detection of hibernating myocardium was difficult despite the superior imaging capability of 99mTc-tetrofosmin myocardial SPECT.
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Affiliation(s)
- I Adachi
- Department of Radiology, Osaka Medical College
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45
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Viala A, Ba B, Durand A, Gouezo F, Hou N, Jørgensen A. Comparative study of the pharmacokinetics of zuclopenthixol decanoate and fluphenazine decanoate. Psychopharmacology (Berl) 1988; 94:293-7. [PMID: 2895936 DOI: 10.1007/bf00174677] [Citation(s) in RCA: 14] [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: 01/03/2023]
Abstract
Seventeen outpatients were treated with depot neuroleptics, zuclopenthixol decanoate in Viscoleo or fluphenazine decanoate in sesame oil, with dosage intervals of 3 weeks. During the 4th, 6th, and 8th dosage interval blood samples were drawn in oxalated tubes. Plasma concentrations of the active neuroleptic drugs, zuclopenthixol and fluphenazine, were determined by high performance liquid chromatography. The concentrations indicated some interindividual as well as intraindividual variations. For zuclopenthixol the maximum concentration was most often seen at day 7 after injection, whereas the kinetics of the fluphenazine concentrations was more variable. There was an indication of more fluctuation in the 4th dosage interval than in the 8th dosage interval, possibly due to the fact that steady state has not yet been achieved at the 4th dosage interval.
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Affiliation(s)
- A Viala
- Laboratoire de Toxicologie générale et Biotoxicologie, Faculté de Pharmacie, Marseille, France
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46
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Zhou NX, Jiang YY, Wen ZM, Zhu GM, Hou N. [Biologic effects of hyperthermia and radiation on gastric cancer cells (SGC-7901) in vitro. II. Ultrastructural changes of cells]. Zhonghua Zhong Liu Za Zhi 1987; 9:176-8, 12. [PMID: 3447857] [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: 01/05/2023]
Abstract
Different characteristic damages of the SGC-7901 gastric adenocarcinoma cells were studied by electron microscopy 1, 36, 72, 96 and 120 hours after heating and radiation in vitro. The visible damages, such as the enlarged mitochondria, increase of lysosomes and perichromatin granules could be shown 1 hour after heating (43 degrees C for 30 min) but no visible damages of the cells were shown until 36 hours following radiation (500 rad). In order to study the ultrastructural changes of the gastric cancer cells in mitosis after heating and radiation, we have used the new method of ultrastructural research in selecting and observing the M cell in vitro and found loosened structure of chromosome and disappearance of microtubules 1 hour following hyperthermia. At the same time, no apparent abnormalities of the mitotic cells were observed after radiation. It is the chief cause of division delay in heat injured cells. However, the chromosomes and microtubules of the new mitotic cells could recover 36 hours after heating (43 degrees C for 30 min). After radiation, the giant cells and abnormal morphologic changes of cells gradually increase and the living cells decrease. Unexpectedly, the division of a few giant cells is observed 72 hours after heating and radiation.
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47
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Viala A, Hou N, Ba B, Durand A, Dufour H, D'Agostino N, Berda C, Jørgensen A. Blood and plasma kinetics of cis(Z)-clopenthixol and fluphenazine in psychiatric patients after intramuscular injection of their decanoic esters. Psychopharmacology (Berl) 1984; 83:147-50. [PMID: 6146995 DOI: 10.1007/bf00429723] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Whole blood and plasma concentrations of active neuroleptic drugs were measured in eight schizophrenic outpatients who had received cis(Z)-clopenthixol decanoate in Viscoleo or fluphenazine decanoate in sesame oil by intramuscular injection. Whole blood and plasma concentrations were very similar, though there was a slight tendency for blood concentrations to be higher than plasma concentrations. Maximum concentrations appeared at 1 week after administration of cis(Z)-clopenthixol decanoate, whereas the highest concentrations after fluphenazine decanoate were seen at the end of the 3-week dosage interval. Some between-individual variation and a limited within-individual variation was seen.
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48
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Viala A, Hou N, Durand A, Ba B, Aaes-Jørgensen T, Jørgensen A. [Determination of cis(Z)-clopenthixol and fluphenazine in whole blood and plasma by high-performance liquid chromatography with an internal standard]. J Pharm Belg 1983; 38:299-303. [PMID: 6674473] [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: 01/21/2023]
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