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Bao H, Zhang Q, Li Y, Nie C. CircDLGAP4 overexpression ameliorates neuronal injury in Parkinson's disease by binding to EIF4A3 and increasing HMGA2 expression. J Biochem Mol Toxicol 2024; 38:e23530. [PMID: 37822284 DOI: 10.1002/jbt.23530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2023] [Revised: 08/04/2023] [Accepted: 08/25/2023] [Indexed: 10/13/2023]
Abstract
Parkinson's disease (PD) is a prevalent neurodegenerative disease, and its prevalence increases steadily with age. Circular RNAs (circRNAs) are involved in various neurodegenerative diseases. Here, we aimed to explore the role of circRNA DLG-associated protein 4 (circDLGAP4) in 1-methyl-4-phenylpyridinium ion (MPP+ )-induced neuronal injury in PD. SH-SY5Y cells were treated with MPP+ to establish PD cell models. The levels of circDLGAP4 and high mobility group AT-hook 2 (HMGA2) in SH-SY5Y cells were detected. SH-SY5Y cell viability and apoptosis were detected. The levels of inflammatory damage (IL-1β, IL-6, TNF-α) and oxidative stress (reactive oxygen species, lactate dehydrogenase, superoxide dismutase, and malondialdehyde)-related factors were measured. The binding of eukaryotic initiation factor 4A3 (EIF4A3) to circDLGAP4 and HMGA2 was analyzed using RNA pull-down or RNA immunoprecipitation. The stability of HMGA2 was detected after actinomycin D treatment, and its effects on neuronal injury were tested. CircDLGAP4 expression was decreased in MPP+ -induced SH-SY5Y cells. CircDLGAP4 upregulation restored cell activity, decreased apoptosis, and reduced inflammatory damage and oxidative stress in PD cell models. CircDLGAP4 bound to EIF4A3 to increase HMGA2 expression and stability. Silencing HMGA2 attenuated the protective effect of circDLGAP4 overexpression. Overall, circDLGAP4 upregulated HMGA2 by recruiting EIF4A3, thus increasing the mRNA stability of HMGA2 and alleviating neuronal injury in PD.
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Affiliation(s)
- Haiping Bao
- Department of Neurology, The Second Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Qiang Zhang
- Department of Rehabilitation Medicine, Sinopharm (Dalian) Rehabilitation Hospital, Dalian, China
| | - Yu Li
- Department of Neurology, The Second Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Chen Nie
- Department of Neurology, The Second Affiliated Hospital of Dalian Medical University, Dalian, China
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Yu G, Xiong Y, Xu Z, Zhang L, Zhou XA, Nie C, Li S, Wang W, Li X, Wang J. MBD1 protects replication fork stability by recruiting PARP1 and controlling transcription-replication conflicts. Cancer Gene Ther 2024; 31:94-107. [PMID: 37949945 DOI: 10.1038/s41417-023-00685-0] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 10/16/2023] [Accepted: 10/31/2023] [Indexed: 11/12/2023]
Abstract
The replication-stress response is essential to ensure the faithful transmission of genetic information to daughter cells. Although several stress-resolution pathways have been identified to deal with replication stress, the precise regulatory mechanisms for replication fork stability are not fully understood. Our study identified Methyl-CpG Binding Domain 1 (MBD1) as essential for the maintaining genomic stability and protecting stalled replication forks in mammalian cells. Depletion of MBD1 increases DNA lesions and sensitivity to replication stress. Mechanistically, we found that loss of MBD1 leads to the dissociation of Poly(ADP-ribose) polymerase 1 (PARP1) from the replication fork, potentially accelerating fork progression and resulting in higher levels of transcription-replication conflicts (T-R conflicts). Using a proximity ligation assay combined with 5-ethynyl-2'-deoxyuridine, we revealed that the MBD1 and PARP1 proteins were recruited to stalled forks under hydroxyurea (HU) treatment. In addition, our study showed that the level of R-loops also increased in MBD1-delated cells. Without MBD1, stalled replication forks resulting from T-R conflicts were primarily degraded by the DNA2 nuclease. Our findings shed light on a new aspect of MBD1 in maintaining genome stability and providing insights into the mechanisms underlying replication stress response.
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Affiliation(s)
- Guihui Yu
- Department of Radiation Medicine, School of Basic Medical Sciences, Peking University International Cancer Institute, Beijing Key Laboratory of Tumor Systems Biology, Peking University Health Science Center, Beijing, 100191, China
| | - Yundong Xiong
- Department of Radiation Medicine, School of Basic Medical Sciences, Peking University International Cancer Institute, Beijing Key Laboratory of Tumor Systems Biology, Peking University Health Science Center, Beijing, 100191, China
| | - Zhanzhan Xu
- Department of Radiation Medicine, School of Basic Medical Sciences, Peking University International Cancer Institute, Beijing Key Laboratory of Tumor Systems Biology, Peking University Health Science Center, Beijing, 100191, China
| | - Lei Zhang
- Department of Radiation Medicine, School of Basic Medical Sciences, Peking University International Cancer Institute, Beijing Key Laboratory of Tumor Systems Biology, Peking University Health Science Center, Beijing, 100191, China
| | - Xiao Albert Zhou
- Department of Radiation Medicine, School of Basic Medical Sciences, Peking University International Cancer Institute, Beijing Key Laboratory of Tumor Systems Biology, Peking University Health Science Center, Beijing, 100191, China
| | - Chen Nie
- Department of Radiation Medicine, School of Basic Medical Sciences, Peking University International Cancer Institute, Beijing Key Laboratory of Tumor Systems Biology, Peking University Health Science Center, Beijing, 100191, China
| | - Shiwei Li
- Department of Radiation Medicine, School of Basic Medical Sciences, Peking University International Cancer Institute, Beijing Key Laboratory of Tumor Systems Biology, Peking University Health Science Center, Beijing, 100191, China
| | - Weibin Wang
- Department of Radiation Medicine, School of Basic Medical Sciences, Peking University International Cancer Institute, Beijing Key Laboratory of Tumor Systems Biology, Peking University Health Science Center, Beijing, 100191, China.
| | - Xiaoman Li
- Department of Radiation Medicine, School of Basic Medical Sciences, Peking University International Cancer Institute, Beijing Key Laboratory of Tumor Systems Biology, Peking University Health Science Center, Beijing, 100191, China.
| | - Jiadong Wang
- Department of Radiation Medicine, School of Basic Medical Sciences, Peking University International Cancer Institute, Beijing Key Laboratory of Tumor Systems Biology, Peking University Health Science Center, Beijing, 100191, China.
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Zhong C, Zhang Q, Bao H, Li Y, Nie C. Hsa_circ_0054220 Upregulates HMGA1 by the Competitive RNA Pattern to Promote Neural Impairment in MPTP Model of Parkinson's Disease. Appl Biochem Biotechnol 2023:10.1007/s12010-023-04740-2. [PMID: 37815624 DOI: 10.1007/s12010-023-04740-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/15/2023] [Indexed: 10/11/2023]
Abstract
Parkinson's disease (PD) is a common neurodegenerative disease. Circular RNAs (circRNAs) have been confirmed to regulate neurodegenerative diseases. This study was aimed to explore hsa_circ_0054220 functions in PD. MPP-stimulated SH-SY5Y cells were established as the PD cell model. PD mouse model was established by MPTP. Gene expression in cells and tissues was tested by RT-qPCR. Cell viability and apoptosis were evaluated through CCK-8 and TUNEL assays. The interactions of RNAs were determined by RNA pull-down assay, RIP assay, and luciferase reporter assay. Circ_0054220 expressed at a high level in MPP-treated SH-SY5Y cells. Circ_0054220 inhibition promoted viability and suppressed apoptosis in MPP-stimulated cells. Furthermore, we found that circ_0054220 can competitively bind to miR-145 and miR-625 to upregulate high mobility group A1 (HMGA1) expression. HMGA1 was positively regulated by circ_0054220 and overexpressed in MPP-treated cells as well as the striatum (STR), substantia nigra pars compacta (SNpc), and serum of MPTP-induced mouse model of PD. HMGA1 overexpression counteracted the function of circ_0054220 silencing on cell apoptosis. Furthermore, HMGA1 inhibition notably alleviated motor dysfunction and increased the quantity of neurons in mice resembling PD. Circ_0054220 upregulates HMGA1 by the competitive endogenous RNAs (ceRNA) pattern to promote neural impairment in PD.
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Affiliation(s)
- Cundi Zhong
- Clinical Laboratory, The Second Affiliated Hospital of Dalian Medical University, Dalian, 116023, Niaoning, China
| | - Qiang Zhang
- Rehabilitation Medicine, Sinopharm (Dalian) Rehabilitation Hospital, Dalian, 116013, Niaoning, China
| | - Haiping Bao
- Neurology, The Second Affiliated Hospital of Dalian Medical University, 467 Zhongshan Road, Dalian, 116023, Niaoning, China
| | - Yu Li
- Neurology, The Second Affiliated Hospital of Dalian Medical University, 467 Zhongshan Road, Dalian, 116023, Niaoning, China
| | - Chen Nie
- Neurology, The Second Affiliated Hospital of Dalian Medical University, 467 Zhongshan Road, Dalian, 116023, Niaoning, China.
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Xie M, Jia Y, Nie C, Liu Z, Tang A, Fan S, Liang X, Jiang L, He Z, Yang R. Monolithic 3D integration of 2D transistors and vertical RRAMs in 1T-4R structure for high-density memory. Nat Commun 2023; 14:5952. [PMID: 37741834 PMCID: PMC10517937 DOI: 10.1038/s41467-023-41736-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2022] [Accepted: 09/12/2023] [Indexed: 09/25/2023] Open
Abstract
Emerging data-intensive computation has driven the advanced packaging and vertical stacking of integrated circuits, for minimized latency and energy consumption. Yet a monolithic three-dimensional (3D) integrated structure with interleaved logic and high-density memory layers has been difficult to achieve due to challenges in managing the thermal budget. Here we experimentally demonstrate a monolithic 3D integration of atomically-thin molybdenum disulfide (MoS2) transistors and 3D vertical resistive random-access memories (VRRAMs), with the MoS2 transistors stacked between the bottom-plane and top-plane VRRAMs. The whole fabrication process is integration-friendly (below 300 °C), and the measurement results confirm that the top-plane fabrication does not affect the bottom-plane devices. The MoS2 transistor can drive each layer of VRRAM into four resistance states. Circuit-level modeling of the monolithic 3D structure demonstrates smaller area, faster data transfer, and lower energy consumption than a planar memory. Such platform holds a high potential for energy-efficient 3D on-chip memory systems.
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Affiliation(s)
- Maosong Xie
- University of Michigan-Shanghai Jiao Tong University Joint Institute, Shanghai Jiao Tong University, Shanghai, China
| | - Yueyang Jia
- University of Michigan-Shanghai Jiao Tong University Joint Institute, Shanghai Jiao Tong University, Shanghai, China
| | - Chen Nie
- School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Zuheng Liu
- University of Michigan-Shanghai Jiao Tong University Joint Institute, Shanghai Jiao Tong University, Shanghai, China
| | - Alvin Tang
- Department of Electrical Engineering, Stanford University, Stanford, California, USA
| | - Shiquan Fan
- School of Microelectronics, Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Xiaoyao Liang
- School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Li Jiang
- School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai, China
- MoE Key Lab of Artificial Intelligence, Shanghai Jiao Tong University, Shanghai, China
- Shanghai Qi Zhi Institute, Shanghai, China
| | - Zhezhi He
- School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai, China.
| | - Rui Yang
- University of Michigan-Shanghai Jiao Tong University Joint Institute, Shanghai Jiao Tong University, Shanghai, China.
- School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai, China.
- State Key Laboratory of Radio Frequency Heterogeneous Integration, Shanghai Jiao Tong University, Shanghai, China.
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Liu C, Steppert AK, Liu Y, Weis P, Hu J, Nie C, Xu WC, Kuehne AJC, Wu S. A Photopatternable Conjugated Polymer with Thermal-Annealing-Promoted Interchain Stacking for Highly Stable Anti-Counterfeiting Materials. Adv Mater 2023; 35:e2303120. [PMID: 37257837 DOI: 10.1002/adma.202303120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Revised: 05/18/2023] [Indexed: 06/02/2023]
Abstract
Photoresponsive polymers can be conveniently used to fabricate anti-counterfeiting materials through photopatterning. However, an unsolved problem is that ambient light and heat can damage anti-counterfeiting patterns on photoresponsive polymers. Herein, photo- and thermostable anti-counterfeiting materials are developed by photopatterning and thermal annealing of a photoresponsive conjugated polymer (MC-Azo). MC-Azo contains alternating azobenzene and fluorene units in the polymer backbone. To prepare an anti-counterfeiting material, an MC-Azo film is irradiated with polarized blue light through a photomask, and then thermally annealed under the pressure of a photonic stamp. This strategy generates a highly secure anti-counterfeiting material with dual patterns, which is stable to sunlight and heat over 200 °C. A key for the stability is that thermal annealing promotes interchain stacking, which converts photoresponsive MC-Azo to a photostable material. Another key for the stability is that the conjugated structure endows MC-Azo with desirable thermal properties. This study shows that the design of photopatternable conjugated polymers with thermal-annealing-promoted interchain stacking provides a new strategy for the development of highly stable and secure anti-counterfeiting materials.
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Affiliation(s)
- Chengwei Liu
- CAS Key Laboratory of Soft Matter Chemistry, Anhui Key Laboratory of Optoelectronic Science and Technology, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, 230026, China
| | - Ann-Kathrin Steppert
- Institute of Organic and Macromolecular Chemistry, Ulm University, Albert-Einstein-Allee 11, 89081, Ulm, Germany
| | - Yazhi Liu
- CAS Key Laboratory of Soft Matter Chemistry, Anhui Key Laboratory of Optoelectronic Science and Technology, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, 230026, China
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128, Mainz, Germany
| | - Philipp Weis
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128, Mainz, Germany
| | - Jianyu Hu
- Department of Chemical Physics, School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, 230026, China
| | - Chen Nie
- CAS Key Laboratory of Soft Matter Chemistry, Anhui Key Laboratory of Optoelectronic Science and Technology, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, 230026, China
| | - Wen-Cong Xu
- CAS Key Laboratory of Soft Matter Chemistry, Anhui Key Laboratory of Optoelectronic Science and Technology, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, 230026, China
| | - Alexander J C Kuehne
- Institute of Organic and Macromolecular Chemistry, Ulm University, Albert-Einstein-Allee 11, 89081, Ulm, Germany
| | - Si Wu
- CAS Key Laboratory of Soft Matter Chemistry, Anhui Key Laboratory of Optoelectronic Science and Technology, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, 230026, China
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Nie C, Zhou XA, Zhou J, Liu Z, Gu Y, Liu W, Zhan J, Li S, Xiong Y, Zhou M, Shen Q, Wang W, Yang E, Wang J. A transcription-independent mechanism determines rapid periodic fluctuations of BRCA1 expression. EMBO J 2023:e111951. [PMID: 37334492 PMCID: PMC10390875 DOI: 10.15252/embj.2022111951] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Revised: 04/28/2023] [Accepted: 05/15/2023] [Indexed: 06/20/2023] Open
Abstract
BRCA1 expression is highly regulated to prevent genomic instability and tumorigenesis. Dysregulation of BRCA1 expression correlates closely with sporadic basal-like breast cancer and ovarian cancer. The most significant characteristic of BRCA1 regulation is periodic expression fluctuation throughout the cell cycle, which is important for the orderly progression of different DNA repair pathways throughout the various cell cycle phases and for further genomic stability. However, the underlying mechanism driving this phenomenon is poorly understood. Here, we demonstrate that RBM10-mediated RNA alternative splicing coupled to nonsense-mediated mRNA decay (AS-NMD), rather than transcription, determines the periodic fluctuations in G1/S-phase BRCA1 expression. Furthermore, AS-NMD broadly regulates the expression of period genes, such as DNA replication-related genes, in an uneconomical but more rapid manner. In summary, we identified an unexpected posttranscriptional mechanism distinct from canonical processes that mediates the rapid regulation of BRCA1 as well as other period gene expression during the G1/S-phase transition and provided insights into potential targets for cancer therapy.
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Affiliation(s)
- Chen Nie
- Department of Radiation Medicine, School of Basic Medical Sciences, Peking University International Cancer Institute, Beijing Key Laboratory of Tumor Systems Biology, Peking University Health Science Center, Beijing, China
| | - Xiao Albert Zhou
- Department of Radiation Medicine, School of Basic Medical Sciences, Peking University International Cancer Institute, Beijing Key Laboratory of Tumor Systems Biology, Peking University Health Science Center, Beijing, China
| | - Jiadong Zhou
- Department of Radiation Medicine, School of Basic Medical Sciences, Peking University International Cancer Institute, Beijing Key Laboratory of Tumor Systems Biology, Peking University Health Science Center, Beijing, China
| | - Zelin Liu
- Department of Medical Bioinformatics, Institute of Systems Biomedicine, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, China
| | - Yangyang Gu
- Department of Radiation Medicine, School of Basic Medical Sciences, Peking University International Cancer Institute, Beijing Key Laboratory of Tumor Systems Biology, Peking University Health Science Center, Beijing, China
| | - Wanchang Liu
- Department of Radiation Medicine, School of Basic Medical Sciences, Peking University International Cancer Institute, Beijing Key Laboratory of Tumor Systems Biology, Peking University Health Science Center, Beijing, China
| | - Jun Zhan
- Department of Anatomy, Histology and Embryology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, China
| | - Shiwei Li
- Department of Radiation Medicine, School of Basic Medical Sciences, Peking University International Cancer Institute, Beijing Key Laboratory of Tumor Systems Biology, Peking University Health Science Center, Beijing, China
| | - Yundong Xiong
- Department of Radiation Medicine, School of Basic Medical Sciences, Peking University International Cancer Institute, Beijing Key Laboratory of Tumor Systems Biology, Peking University Health Science Center, Beijing, China
| | - Mei Zhou
- Department of Radiation Medicine, School of Basic Medical Sciences, Peking University International Cancer Institute, Beijing Key Laboratory of Tumor Systems Biology, Peking University Health Science Center, Beijing, China
| | - Qinjian Shen
- Department of Radiation Medicine, School of Basic Medical Sciences, Peking University International Cancer Institute, Beijing Key Laboratory of Tumor Systems Biology, Peking University Health Science Center, Beijing, China
| | - Weibin Wang
- Department of Radiation Medicine, School of Basic Medical Sciences, Peking University International Cancer Institute, Beijing Key Laboratory of Tumor Systems Biology, Peking University Health Science Center, Beijing, China
| | - Ence Yang
- Department of Medical Bioinformatics, Institute of Systems Biomedicine, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, China
| | - Jiadong Wang
- Department of Radiation Medicine, School of Basic Medical Sciences, Peking University International Cancer Institute, Beijing Key Laboratory of Tumor Systems Biology, Peking University Health Science Center, Beijing, China
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Wang M, Nie C, Liu J, Wu S. Organic‒inorganic semi-interpenetrating networks with orthogonal light- and magnetic-responsiveness for smart photonic gels. Nat Commun 2023; 14:1000. [PMID: 36813808 PMCID: PMC9946997 DOI: 10.1038/s41467-023-36706-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Accepted: 02/13/2023] [Indexed: 02/24/2023] Open
Abstract
Living matter has the ability to perceive multiple stimuli and respond accordingly. However, the integration of multiple stimuli-responsiveness in artificial materials usually causes mutual interference, which makes artificial materials work improperly. Herein, we design composite gels with organic‒inorganic semi-interpenetrating network structures, which are orthogonally responsive to light and magnetic fields. The composite gels are prepared by the co-assembly of a photoswitchable organogelator (Azo-Ch) and superparamagnetic inorganic nanoparticles (Fe3O4@SiO2). Azo-Ch assembles into an organogel network, which shows photoinduced reversible sol-gel transitions. In gel or sol state, Fe3O4@SiO2 nanoparticles reversibly form photonic nanochains via magnetic control. Light and magnetic fields can orthogonally control the composite gel because Azo-Ch and Fe3O4@SiO2 form a unique semi-interpenetrating network, which allows them to work independently. The orthogonal photo- and magnetic-responsiveness enables the fabrication of smart windows, anti-counterfeiting labels, and reconfigurable materials using the composite gel. Our work presents a method to design orthogonally stimuli-responsive materials.
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Affiliation(s)
- Minghao Wang
- grid.59053.3a0000000121679639CAS Key Laboratory of Soft Matter Chemistry, Anhui Key Laboratory of Optoelectronic Science and Technology, Department of Polymer Science and Engineering, University of Science and Technology of China, 230026 Hefei, China
| | - Chen Nie
- grid.59053.3a0000000121679639CAS Key Laboratory of Soft Matter Chemistry, Anhui Key Laboratory of Optoelectronic Science and Technology, Department of Polymer Science and Engineering, University of Science and Technology of China, 230026 Hefei, China
| | - Junbang Liu
- grid.59053.3a0000000121679639CAS Key Laboratory of Strongly-Coupled Quantum Matter Physics, Department of Physics, University of Science and Technology of China, 230026 Hefei, China
| | - Si Wu
- CAS Key Laboratory of Soft Matter Chemistry, Anhui Key Laboratory of Optoelectronic Science and Technology, Department of Polymer Science and Engineering, University of Science and Technology of China, 230026, Hefei, China.
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Ma Y, Wang Y, Nie C, Lin Y. The efficacy of targeted therapy combined with radiotherapy and temozolomide-based chemotherapy in the treatment of glioma: A systemic review and meta-analysis of phase II/III randomized controlled trials. Front Oncol 2023; 13:1082539. [PMID: 36776303 PMCID: PMC9909217 DOI: 10.3389/fonc.2023.1082539] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Accepted: 01/04/2023] [Indexed: 01/27/2023] Open
Abstract
Background Glioma is the most common intracranial tumor, accounting for about half of the primary intracranial tumors, with the characteristics of hidden onset and high mortality. Even after surgery, radiotherapy and chemotherapy, the prognosis of glioma is not ideal. Targeted therapy has developed rapidly in the treatment of other malignant tumors, which is also an important direction in the research and development of new therapies for glioma. So far, targeting combined with radiotherapy and chemotherapy have been used as the treatment of glioma in many clinical trials, but the role of targeted combined radiotherapy and chemotherapy in the treatment of glioma is still controversial. The purpose of this study was to evaluate the efficacy of targeted therapy combined with radiotherapy and temozolomide (TMZ)-based chemotherapy in the treatment of glioma. Methods Phase II or phase III clinical trials involving targeted therapy combined with radiotherapy and chemotherapy and temozolomide-based radiotherapy and chemotherapy for gliomas were searched using PubMed, Embase and Web of Science databases, and a comprehensive meta-analysis was conducted. The primary outcome was overall survival time (OS) and progression-free survival time (PFS), and the secondary outcome was adverse reaction. The time-to-event data is summarized as hazard ratio (HR), and the binary results are summarized as odds ratio (OR). Two researchers conducted literature screening, data extraction and quality evaluation according to inclusion and exclusion criteria. Stata16.0 software was used for analysis, random effect model was used for data merging, and forest map was used for display. Results A total of 11 eligible literatures and 12 prospective randomized controlled clinical trials of 1284 cases were included in the meta-analysis. The results showed that compared with radiotherapy and chemotherapy alone, targeted drugs combined with temozolomide-based radiotherapy and chemotherapy could significantly improve OS in phase II trial, but there was no improvement in Phase III trial, and PFS of newly diagnosed glioma patients was improved (HR=0.82(0.71-0.94) 95%CI, p =0.005). The PFS of the third phase of the experiment also improved. Compared with radiotherapy and chemotherapy alone, there was no statistically significant increase in adverse events in targeted combined radiotherapy and chemotherapy group. Systematic review registration https://www.crd.york.ac.uk/prospero, identifier CRD42022326012.
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Affiliation(s)
- Yifan Ma
- Department of Neurology, The Second Affiliated Hospital of Dalian Medical University, Dalian, Liaoning, China
| | - Yue Wang
- Department of Medical Oncology, The Second Affiliated Hospital of Dalian Medical University, Dalian, Liaoning, China
| | - Chen Nie
- Department of Neurology, The Second Affiliated Hospital of Dalian Medical University, Dalian, Liaoning, China,*Correspondence: Chen Nie, ; Yongzhong Lin,
| | - Yongzhong Lin
- Department of Neurology, The Second Affiliated Hospital of Dalian Medical University, Dalian, Liaoning, China,*Correspondence: Chen Nie, ; Yongzhong Lin,
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Zhao Z, Han X, Nie C, Lin S, Wang J, Fang H. Circ_0008784 activates Wnt/β-catenin pathway to affect the proliferation and apoptosis of triple-negative breast cancer cells. Pathol Res Pract 2023; 241:154185. [PMID: 36436315 DOI: 10.1016/j.prp.2022.154185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Revised: 09/19/2022] [Accepted: 10/18/2022] [Indexed: 11/27/2022]
Abstract
Triple-negative breast cancer (TNBC), as a subtype of breast tumors with aggressive nature, threatens the health of females across the globe. It's urgent to explore novel therapeutic targets for the improvement of TNBC treatments. Bioinformatics was used to identify circular RNA (circRNA) differentially expressed in TNBC tissues. The circular structure and expression in TNBC cells was subjected to analysis of quantitative polymerase chain reaction (qPCR) and PCR-agarose gel electrophoresis. Functional experiments and qPCR assays were carried out to probe the biological functions of circ_0008784 and microRNA-506-3p (miR-506-3p). It was verified by the assays that circ_0008784 propels proliferation and inhibit apoptosis of TNBC cells; and miR-506-3p was found to suppress proliferation and facilitate apoptosis of TNBC cells. TOP/FOP-Flash reporter, luciferase reporter, RNA-binding protein immunoprecipitation (RIP), RNA pulldown and rescue assays were implemented for exploring the underlying mechanisms of circ_0008784. It was found that circ_0008784 regulates Wnt/β-catenin signaling pathway, and augments TNBC cell progression via sponging miR-506-3p to modulate catenin beta 1 (CTNNB1). Circ_0008784 activates Wnt/β-catenin pathway to affect the proliferation and apoptosis of TNBC cells. Elucidating the mechanism of circ_0008784 underlying TNBC is of great significance to TNBC treatment.
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Affiliation(s)
- Ziwei Zhao
- Department of Mammary Gland, Zhongshan Hospital Affiliated to Dalian University, Dalian 116001, Liaoning, China
| | - Xue Han
- Department of Mammary Gland, Zhongshan Hospital Affiliated to Dalian University, Dalian 116001, Liaoning, China
| | - Chen Nie
- Department of Mammary Gland, Zhongshan Hospital Affiliated to Dalian University, Dalian 116001, Liaoning, China
| | - Shan Lin
- Department of Mammary Gland, Zhongshan Hospital Affiliated to Dalian University, Dalian 116001, Liaoning, China
| | - Jingwei Wang
- Department of Mammary Gland, Zhongshan Hospital Affiliated to Dalian University, Dalian 116001, Liaoning, China
| | - Hong Fang
- Department of Mammary Gland, Zhongshan Hospital Affiliated to Dalian University, Dalian 116001, Liaoning, China.
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Nie C, Lv H, Chen B, Xu W, Wang J, Wang S, Liu Y, He Y, Zhao J, Chen X. 102P A real-world study comparing apatinib combined with irinotecan versus irinotecan as second-line or above therapy in patients with advanced or metastatic gastric cancer. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.10.138] [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: 12/07/2022] Open
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Nie C, Xu W, Lv H, Chen B, Wang J, Liu Y, Zhao J, He Y, Wang S, Chen X. 51P Efficacy and safety of sintilimab as first-line therapy in patients with microsatellite instability-high metastatic colorectal cancer: A real-world study. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.10.083] [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: 12/07/2022] Open
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12
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Zhou J, Xie S, Nie C, Li L, Shan Z, Liu E. GeO 2-doped ring-core photonic crystal fiber for supporting robust orbital angular momentum modes. J Opt Soc Am A Opt Image Sci Vis 2022; 39:1913-1920. [PMID: 36215564 DOI: 10.1364/josaa.471249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Accepted: 09/12/2022] [Indexed: 06/16/2023]
Abstract
Orbital angular momentum (OAM)-mode-supported photonic crystal fibers (PCFs) have inspired intensive research in modern fiber optics due to the robust propagation and theoretically unlimited signal-carried channels. In this paper, a dual-cladding GeO2-doped ring-core PCF is designed, and a strategy for optimizing OAM mode properties is analyzed by structure parameters and GeO2-doping concentration. Numeric results show that high structural degrees of freedom are available to improve the effective refractive index separation (within the vector modes), chromatic dispersion, effective mode field area, nonlinear coefficient, and OAM mode purity in terms of inner cladding, outer cladding, and ring-core. In particular, the effective refractive index separation and chromatic dispersion can exhibit a high order magnitude of 10-3 and a low value in the broad band from 1.3 µm to 1.7 µm, respectively. In addition to structural optimization, doping high index material into the ring-core is another way to regulate the fiber performance by controlling the doping concentration. A systematic investigation shows that as the doping concentration increases, the effective refractive index separation and mode purity increase obviously, while the dispersion and mode field area gradually decrease. This flexible manipulation offers a method for customizing the optical properties of OAM-supported PCFs in communication and sensor systems.
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Chen L, Shi H, Zhang X, Xue C, Nie C, Yang F, Shao Y, Xue Y, Zhang H, Li Z. The effect of depuration salinity on the survival, nutritional composition, biochemical responses and proteome of Pacific oyster (Crassostrea gigas) during anhydrous living-preservation. Food Control 2022. [DOI: 10.1016/j.foodcont.2022.108977] [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: 11/16/2022]
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14
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Zhang Z, Xie Z, Nie C, Wu S. Photo-controlled properties and functions of azobenzene-terminated polymers. POLYMER 2022. [DOI: 10.1016/j.polymer.2022.125166] [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: 11/28/2022]
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15
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Liu S, Shu R, Nie C, Li Y, Luo X, Ji Y, Yin X, Sun J, Zhang D, Wang J. Bioresource-derived tannic acid-supported immuno-network in lateral flow immunoassay for sensitive clenbuterol monitoring. Food Chem 2022; 382:132390. [DOI: 10.1016/j.foodchem.2022.132390] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Revised: 01/16/2022] [Accepted: 02/06/2022] [Indexed: 12/14/2022]
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16
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Wang J, He Y, Lv H, Chen B, Nie C, Xu W, Zhao J, Zhang B, Cheng X, Q. li, Tu S, Chen X. P-4 Efficacy and safety of sintilimab combined nab-paclitaxel and gemcitabine as first-line treatment for metastatic pancreatic ductal adenocarcinoma (PDAC): A retrospective analysis. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.04.096] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
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17
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Wang J, Lv H, Chen B, Xu W, Nie C, Zhao J, He Y, Chen X. P-252 Real-world data: Different administration strategies of fruquintinib for metastatic colorectal cancer. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.04.342] [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] Open
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18
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Zhang H, Nie C, Cao D, Cheng X, Guan R. Constructing unconventional fluorescent molecules by imidazoline ring and its salt of carboxylic acid and their application. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.118878] [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: 10/18/2022]
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19
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Liu X, Zhou H, Wang Z, Liu X, Li X, Nie C, Li Y. Fully Convolutional Neural Network Deep Learning Model Fully in Patients with Type 2 Diabetes Complicated with Peripheral Neuropathy by High-Frequency Ultrasound Image. Comput Math Methods Med 2022; 2022:5466173. [PMID: 35371289 PMCID: PMC8970954 DOI: 10.1155/2022/5466173] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Revised: 02/21/2022] [Accepted: 03/01/2022] [Indexed: 12/13/2022]
Abstract
This study was aimed at exploring the diagnostic value of high-frequency ultrasound imaging based on a fully convolutional neural network (FCN) for peripheral neuropathy in patients with type 2 diabetes (T2D). A total of 70 patients with T2D mellitus were selected and divided into a lesion group (n = 31) and a nonlesion group (n = 39) according to the type of peripheral neuropathy. In addition, 30 healthy people were used as controls. Hypervoxel-based and FCN-based high-frequency ultrasound images were used to examine the three groups of patients to evaluate their diagnostic performance and to compare the changes of peripheral nerves and ultrasound characteristics. The results showed that the Dice coefficient (92.7) and mean intersection over union (mIOU) (82.6) of the proposed algorithm after image segmentation were the largest, and the Hausdorff distance (7.6) and absolute volume difference (AVD) (8.9) were the smallest. The high-frequency ultrasound based on the segmentation algorithm showed higher diagnostic accuracy (94.0% vs. 86.0%), sensitivity (87.1% vs. 67.7%), specificity (97.1% vs. 94.2%), positive predictive value (93.1% vs. 86.7%), and negative predictive value (94.4% vs. 84.0%) (P < 0.05). There were significant differences in the detection values of the three major nerve segments of the upper limbs in the control group, the lesion group, and the nonlesion group (P < 0.05). Compared with the nonlesion group, the patients in the lesion group were more likely to have reduced nerve bundle echo, blurred reticular structure, thickened epineurium, and unclear borders of adjacent tissues (P < 0.05). In summary, the high-frequency ultrasound processed by the algorithm proposed in this study showed a high diagnostic value for peripheral neuropathy in T2D patients, and high-frequency ultrasound can be used to evaluate the morphological changes of peripheral nerves in T2D patients.
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Affiliation(s)
- Xiaoqiang Liu
- Department of Ultrasound, The Second Hospital of Dalian Medical University, Dalian City, 116027 Liaoning Province, China
| | - Hongyan Zhou
- Department of Ultrasound, The Second Hospital of Dalian Medical University, Dalian City, 116027 Liaoning Province, China
| | - Zhaoyun Wang
- Department of Wound Repair, The Second Hospital of Dalian Medical University, Dalian City, 116027 Liaoning Province, China
| | - Xiaoli Liu
- Department of Respiratory, The Second Hospital of Dalian Medical University, Dalian City, 116027 Liaoning Province, China
| | - Xin Li
- Department of Radiology, The Second Hospital of Dalian Medical University, Dalian City, 116027 Liaoning Province, China
| | - Chen Nie
- Department of Neurology, The Second Hospital of Dalian Medical University, Dalian City, 116027 Liaoning Province, China
| | - Yang Li
- Department of Ultrasound, The Second Hospital of Dalian Medical University, Dalian City, 116027 Liaoning Province, China
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Li Y, Zhang Q, Bao H, Nie C. Association of Klotho Gene Polymorphism with Cerebral Infarction. J Med Biochem 2021; 41:204-210. [PMID: 35510207 PMCID: PMC9010054 DOI: 10.5937/jomb0-34196] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Accepted: 11/01/2021] [Indexed: 11/02/2022] Open
Abstract
Background: We aimed to investigate the expression of Klotho gene in peripheral blood of patients with cerebral infarction (CI) and the association of its polymorphisms with the occurrence of CI.
Methods: A total of 60 CI patients (CI group) and 20 healthy people receiving physical examination (control group) were enrolled as the research subjects. The expression of Klotho gene in CI group and control group was determined using enzyme-linked immunosorbent assay kit. Single nucleotide polymorphisms (rs192031, rs200131 and rs102312) in the promoter region of the Klotho gene were typed via conformational difference gel electrophoresis. Besides, whether the distribution frequencies of Klotho genotypes conformed to Hardy-Weinberg equilibrium was evaluated by chi-square test. Meanwhile, the associations of Klotho alleles and gene polymorphisms with CI occurrence were analyzed.
Results: The protein expression level of Klotho in the peripheral blood was remarkably lower in patients in CI group than that in control group (P<0.05). Hardy-Weinberg equilibrium analysis revealed that Klotho gene polymorphisms (rs192031, rs200131 and rs102312) conformed to the genetic equilibrium distribution (P>0.05). Gene-based association analysis manifested that only rs192031 polymorphism and alleles were correlated with CI occurrence (P<0.05). Systolic blood pressure and high-density lipoprotein cholesterol were notably higher in CI patients with TT genotype of Klotho gene polymorphism rs192031 than those in control group (P<0.05). Furthermore, there were no associations of rs200131 and rs102312 polymorphisms and alleles with the occurrence of CI (P>0.05).
Conclusions: The expression level of Klotho is evidently reduced in the peripheral blood of CI patients. Rs192031 in the promoter region of the Klotho gene is associated with the occurrence of CI, while rs200131 and rs102312 have no relations with CI.
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Affiliation(s)
- Yu Li
- The Second Affiliated Hospital of Dalian Medical University, Department of Neurology, Dalian, China
| | - Qiang Zhang
- Dalian Shipyard Rehabilitation Hospital, Department of Rehabilitation Medicine, Dalian, China
| | - Haiping Bao
- The Second Affiliated Hospital of Dalian Medical University, Department of Neurology, Dalian, China
| | - Chen Nie
- The Second Affiliated Hospital of Dalian Medical University, Department of Neurology, Dalian, China
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Xiong W, Chen H, Lu J, Ren J, Nie C, Liang R, Liu F, Huang B, Luo Y. IL-39 increases ROS production and promotes the phosphorylation of p38 MAPK in the apoptotic cardiomyocytes. Folia Histochem Cytobiol 2021; 59:195-202. [PMID: 34542904 DOI: 10.5603/fhc.a2021.0019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Revised: 08/12/2021] [Accepted: 09/19/2021] [Indexed: 11/25/2022] Open
Abstract
INTRODUCTION The cytokine interleukin (IL)-39 is a novel member of the IL-12 family. Our previous study found that the serum level of IL-39 significantly increased in patients with acute myocardial infarction. However, the role of IL-39 in cardiomyocyte apoptosis remains unclear. MATERIAL AND METHODS In this study, the cultured mouse HL-1 cardiomyocytes were incubated with PBS, 0-100 ng/mL IL-39, 200 μM H2O2 or 20 μM Trolox. RESULTS IL-39 promoted the production of intracellular reactive oxygen species (ROS) in a concentration dependent manner in HL-1 cardiomyocytes. IL-39 and H2O2 both significantly promoted the production of intracellular ROS, increased the level of intracellular CCL2, stimulated the apoptotic progress of cardiomyocytes, increased the mRNA and protein expression levels of Bax, caspase-3, and p-p38 MAPK, and decreased the mRNA and protein expression levels of Bcl-2. ROS production, CCL2 level, cardiomyocyte apoptosis, and expression of Bax, caspase-3, and p-p38 MAPK were significantly amplified by the administration of IL-39 combined with H2O2, and these processes were significantly alleviated by an antioxidant Trolox. CONCLUSION This study was novel in revealing that IL-39 promoted apoptosis by stimulating the phosphorylation of p38 MAPK in mouse HL-1 cardiomyocytes.
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Affiliation(s)
- Wei Xiong
- Department of Emergency, Shenzhen People's Hospital Longhua Branch, The Second Affiliated Hospital of Jinan Medical College, Shenzhen, China.
| | - Hua Chen
- Department of Emergency, Shenzhen People's Hospital, The Second Affiliated Hospital of Jinan Medical College, Shenzhen, China
| | - Jiequan Lu
- Department of Cardiology, Shenzhen People's Hospital, The Second Affiliated Hospital of Jinan Medical College, Shenzhen, China
| | - Jie Ren
- Department of Cardiology, Shenzhen People's Hospital, The Second Affiliated Hospital of Jinan Medical College, Shenzhen, China
| | - Chen Nie
- Department of Emergency, Shenzhen People's Hospital Longhua Branch, The Second Affiliated Hospital of Jinan Medical College, Shenzhen, China
| | - Ruijuan Liang
- Department of Cardiology, Shenzhen People's Hospital, The Second Affiliated Hospital of Jinan Medical College, Shenzhen, China
| | - Feng Liu
- Department of Cardiology, Shenzhen People's Hospital, The Second Affiliated Hospital of Jinan Medical College, Shenzhen, China
| | - Baofeng Huang
- Department of Gerontology, Shenzhen People's Hospital, The Second Affiliated Hospital of Jinan Medical College, Shenzhen, China
| | - Yu Luo
- Department of Gerontology, Shenzhen People's Hospital, The Second Affiliated Hospital of Jinan Medical College, Shenzhen, China
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22
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Nie C, Liu C, Sun S, Wu S. Visible‐Light‐Controlled Azobenzene‐Cyclodextrin Host‐Guest Interactions for Biomedical Applications and Surface Functionalization. CHEMPHOTOCHEM 2021. [DOI: 10.1002/cptc.202100085] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Chen Nie
- CAS Key Laboratory of Soft Matter Chemistry Hefei National Laboratory for Physical Sciences at the Microscale Anhui Key Laboratory of Optoelectronic Science and Technology Department of Polymer Science and Engineering University of Science and Technology of China Hefei 230026 China
| | - Chengwei Liu
- CAS Key Laboratory of Soft Matter Chemistry Hefei National Laboratory for Physical Sciences at the Microscale Anhui Key Laboratory of Optoelectronic Science and Technology Department of Polymer Science and Engineering University of Science and Technology of China Hefei 230026 China
| | - Shaodong Sun
- CAS Key Laboratory of Soft Matter Chemistry Hefei National Laboratory for Physical Sciences at the Microscale Anhui Key Laboratory of Optoelectronic Science and Technology Department of Polymer Science and Engineering University of Science and Technology of China Hefei 230026 China
| | - Si Wu
- CAS Key Laboratory of Soft Matter Chemistry Hefei National Laboratory for Physical Sciences at the Microscale Anhui Key Laboratory of Optoelectronic Science and Technology Department of Polymer Science and Engineering University of Science and Technology of China Hefei 230026 China
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23
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Liu S, Nie C, Xu Q, Xie H, Wang M, Yu C, Hou X. Prognostic value of initial chest CT findings for clinical outcomes in patients with COVID-19. Int J Med Sci 2021; 18:270-275. [PMID: 33390795 PMCID: PMC7738950 DOI: 10.7150/ijms.48281] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Accepted: 10/29/2020] [Indexed: 01/08/2023] Open
Abstract
Rationale: To identify whether the initial chest computed tomography (CT) findings of patients with coronavirus disease 2019 (COVID-19) are helpful for predicting the clinical outcome. Methods: A total of 224 patients with laboratory-confirmed COVID-19 who underwent chest CT examination within the first day of admission were enrolled. CT findings, including the pattern and distribution of opacities, the number of lung lobes involved and the chest CT scores of lung involvement, were assessed. Independent predictors of adverse clinical outcomes were determined by multivariate regression analysis. Adverse outcome were defined as the need for mechanical ventilation or death. Results: Of 224 patients, 74 (33%) had adverse outcomes and 150 (67%) had good outcomes. There were higher frequencies of more than four lung zones involved (73% vs 32%), both central and peripheral distribution (57% vs 42%), consolidation (27% vs 17%), and air bronchogram (24% vs 13%) and higher initial chest CT scores (8.6±3.4 vs 5.4±2.1) (P < 0.05 for all) in the patients with poor outcomes. Multivariate analysis demonstrated that more than four lung zones (odds ratio [OR] 3.93; 95% confidence interval [CI]: 1.44 to 12.89), age above 65 (OR 3.65; 95% CI: 1.11 to 10.59), the presence of comorbidity (OR 5.21; 95% CI: 1.64 to 19.22) and dyspnea on admission (OR 3.19; 95% CI: 1.35 to 8.46) were independent predictors of poor outcome. Conclusions: Involvement of more than four lung zones and a higher CT score on the initial chest CT were significantly associated with adverse clinical outcome. Initial chest CT findings may be helpful for predicting clinical outcome in patients with COVID-19.
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Affiliation(s)
- Song Liu
- Department of Radiology, The First College of Clinical Medical Science, China Three Gorges University, Yichang Central People's Hospital, Yichang, China
| | - Chen Nie
- Department of Radiology, Yichang Second People's Hospital, Yichang, China
| | - Qizhong Xu
- Department of Radiology, Shenzhen Second People's Hospital, Shenzhen, China
| | - Hong Xie
- Department of Radiology, The First College of Clinical Medical Science, China Three Gorges University, Yichang Central People's Hospital, Yichang, China
| | - Maoren Wang
- Department of Ophthalmology, University Medical Center, Johannes Gutenberg University Mainz, Mainz, Germany
| | - Chengxin Yu
- Department of Radiology, The First College of Clinical Medical Science, China Three Gorges University, Yichang Central People's Hospital, Yichang, China
| | - Xuewen Hou
- Department of Internal Medicine, Charité-Universitätsmedizin Berlin, German Heart Center Berlin, Berlin, Germany
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24
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Liang SF, Nie C, Yan J, Zhang QJ, Wu S. Photoinduced Reversible Solid-to-Liquid Transitions and Directional Photofluidization of Azobenzene-containing Polymers. Chin J Polym Sci 2020. [DOI: 10.1007/s10118-021-2519-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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25
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Xu Z, Li X, Li H, Nie C, Liu W, Li S, Liu Z, Wang W, Wang J. Suppression of DDX39B sensitizes ovarian cancer cells to DNA-damaging chemotherapeutic agents via destabilizing BRCA1 mRNA. Oncogene 2020; 39:7051-7062. [PMID: 32989256 DOI: 10.1038/s41388-020-01482-x] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Revised: 09/10/2020] [Accepted: 09/17/2020] [Indexed: 01/28/2023]
Abstract
Multiple RNA processing events including transcription, mRNA splicing, and export are delicately coordinated by the TREX complex. As one of the essential subunits, DDX39B couples the splicing and export machineries by recruiting ALYREF onto mRNA. In this study, we further explore the functions of DDX39B in handling damaged DNA, and unexpectedly find that DDX39B facilitates DNA repair by homologous recombination through upregulating BRCA1. Specifically, DDX39B binds to and stabilizes BRCA1 mRNA. DDX39B ensures ssDNA formation and RAD51 accumulation at DSB sites by maintaining BRCA1 levels. Without DDX39B being present, ovarian cancer cells exhibit hypersensitivity to DNA-damaging chemotherapeutic agents like platinum or PARPi. Moreover, DDX39B-deficient mice show embryonic lethality or developmental retardation, highly reminiscent of those lacking BRCA1. High DDX39B expression is correlated with worse survival in ovarian cancer patients. Thus, DDX39B suppression represents a rational approach for enhancing the efficacy of chemotherapy in BRCA1-proficient ovarian cancers.
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Affiliation(s)
- Zhanzhan Xu
- Department of Radiation Medicine, Institute of Systems Biomedicine, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, 100191, China
| | - Xiaoman Li
- Department of Radiation Medicine, Institute of Systems Biomedicine, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, 100191, China
| | - Hanxiao Li
- Department of Radiation Medicine, Institute of Systems Biomedicine, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, 100191, China
| | - Chen Nie
- Department of Radiation Medicine, Institute of Systems Biomedicine, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, 100191, China
| | - Wanchang Liu
- Department of Radiation Medicine, Institute of Systems Biomedicine, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, 100191, China
| | - Shiwei Li
- Department of Radiation Medicine, Institute of Systems Biomedicine, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, 100191, China
| | - Zelin Liu
- Department of Medical Bioinformatics, Institute of Systems Biomedicine, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, 100191, China
| | - Weibin Wang
- Department of Radiation Medicine, Institute of Systems Biomedicine, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, 100191, China.
| | - Jiadong Wang
- Department of Radiation Medicine, Institute of Systems Biomedicine, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, 100191, China.
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He D, Nie C, Zheng L, An A, Li H, Ouyang D. GITR agonist sensitizes MC38/OVA tumor to CTLA4 treatment by attenuating Tregs in GITR HuGEMM. Eur J Cancer 2020. [DOI: 10.1016/s0959-8049(20)31103-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Liu X, Zhou H, Wang Z, Liu X, Li X, Nie C, Li Y. WITHDRAWN: Efficacy of High-frequency Ultrasound Image Information Diagnosis on Neurological-abnormality in Patients with Type-2-diabetes Combined with Peripheral- neuropathy. Neurosci Lett 2020:135205. [PMID: 32590043 DOI: 10.1016/j.neulet.2020.135205] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Revised: 06/15/2020] [Accepted: 06/22/2020] [Indexed: 11/19/2022]
Abstract
This article has been withdrawn at the request of the Editor-in-Chief. The Publisher apologizes for any inconvenience this may cause. The full Elsevier Policy on Article Withdrawal can be found at https://www.elsevier.com/about/our-business/policies/article-withdrawal.
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Affiliation(s)
- Xiaoqiang Liu
- Department of Ultrasound, The Second Hospital of Dalian Medical University, Dalian City, 116027, Liaoning Province, China
| | - Hongyan Zhou
- Department of Ultrasound, The Second Hospital of Dalian Medical University, Dalian City, 116027, Liaoning Province, China
| | - Zhaoyun Wang
- Department of Wound repair, The Second Hospital of Dalian Medical University, Dalian City, 116027, Liaoning Province, China
| | - Xiaoli Liu
- Department of Respiratory, The Second Hospital of Dalian Medical University, Dalian City, 116027, Liaoning Province, China
| | - Xin Li
- Department of Radiology, The Second Hospital of Dalian Medical University, Dalian City, 116027, Liaoning Province, China
| | - Chen Nie
- Department of Neurology, The Second Hospital of Dalian Medical University, Dalian City, 116027, Liaoning Province, China
| | - Yang Li
- Department of Ultrasound, The Second Hospital of Dalian Medical University, Dalian City, 116027, Liaoning Province, China.
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Wang X, Zhang D, Cao M, Ba J, Wu B, Liu T, Nie C. A study on the biological function of heat shock factor 1 proteins in breast cancer. Oncol Lett 2018; 16:3821-3825. [PMID: 30127994 PMCID: PMC6096063 DOI: 10.3892/ol.2018.9062] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2017] [Accepted: 06/15/2018] [Indexed: 12/25/2022] Open
Abstract
The present study aimed to investigate the effect of HSF1 proteins on cell proliferation, apoptosis and invasion of breast cancer. The Michigan Cancer Foundation-7 (MCF-7) HSF1-knocked down stable cell line (experimental group) and control cell line (control group) were obtained using a lentivirus assay, and the effects of HSF1 knockdown on the proliferation, tumor formation, apoptosis and invasion ability were analyzed, respectively. The effects of HSF1 on downstream signals were analyzed using western blotting. Western blotting results showed that lentivirus successfully established a HSF1 knockdown stable cell line of MCF-7. Compared with the control group, the growth rate of MCF-7 cells in the experimental group was significantly decreased (P<0.05). Flow cytometry showed that the proportion of apoptosis in the control group was significantly lower than that of the experimental group (P<0.05). Notably, the invasion ability of cells in the control group was significantly higher than that in the experimental group (P<0.05). Compared with cells in the control group, the levels of heat shock protein (HSP)70, HSP90, anti-apoptotic protein B-cell lymphoma 2 (Bcl-2) and macrophage migration inhibitory factor (MIF) in the experimental group were significantly downregulated, whereas the level of Bax was significantly increased (P<0.05). In conclusion, HSF1 protein, as a transcription factor, regulates the expression levels of HSP70, HSP90, MIF, Bcl-2 and Bax, thus controlling the proliferation, apoptosis and invasion of cells. These findings suggest HSF1 protein as a potential target for the treatment of breast cancer.
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Affiliation(s)
- Xiaolan Wang
- Department of Breast and Thyroid Surgery, Affiliated Zhongshan Hospital of Dalian University, Dalian, Liaoning 116000, P.R. China
| | - Dianlong Zhang
- Department of Breast and Thyroid Surgery, Affiliated Zhongshan Hospital of Dalian University, Dalian, Liaoning 116000, P.R. China
| | - Mingqian Cao
- Department of Breast and Thyroid Surgery, Affiliated Zhongshan Hospital of Dalian University, Dalian, Liaoning 116000, P.R. China
| | - Jinling Ba
- Department of Breast and Thyroid Surgery, Affiliated Zhongshan Hospital of Dalian University, Dalian, Liaoning 116000, P.R. China
| | - Bin Wu
- Department of Breast and Thyroid Surgery, Affiliated Zhongshan Hospital of Dalian University, Dalian, Liaoning 116000, P.R. China
| | - Tao Liu
- Department of Breast and Thyroid Surgery, Affiliated Zhongshan Hospital of Dalian University, Dalian, Liaoning 116000, P.R. China
| | - Chen Nie
- Department of Breast and Thyroid Surgery, Affiliated Zhongshan Hospital of Dalian University, Dalian, Liaoning 116000, P.R. China
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Wang X, Zhang D, Cao M, Ba J, Wu B, Liu T, Nie C. A study on the biological function of heat shock factor 1 proteins in breast cancer. Oncol Lett 2018; 16:3145-3149. [PMID: 30127907 PMCID: PMC6096160 DOI: 10.3892/ol.2018.9042] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2017] [Accepted: 06/15/2018] [Indexed: 02/07/2023] Open
Abstract
The present study aimed to investigate the effect of HSF1 proteins on cell proliferation, apoptosis and invasion of breast cancer. The Michigan Cancer Foundation-7 (MCF-7) HSF1-knocked down stable cell line (experimental group) and control cell line (control group) were obtained using a lentivirus assay, and the effects of HSF1 knockdown on the proliferation, tumor formation, apoptosis and invasion ability were analyzed, respectively. The effects of HSF1 on downstream signals were analyzed using western blotting. Western blotting results showed that lentivirus successfully established a HSF1 knockdown stable cell line of MCF-7. Compared with the control group, the growth rate of MCF-7 cells in the experimental group was significantly decreased (P<0.05). Flow cytometry showed that the proportion of apoptosis in the control group was significantly lower than that of the experimental group (P<0.05). Notably, the invasion ability of cells in the control group was significantly higher than that in the experimental group (P<0.05). Compared with cells in the control group, the levels of heat shock protein (HSP)70, HSP90, anti-apoptotic protein B-cell lymphoma 2 (Bcl-2) and macrophage migration inhibitory factor (MIF) in the experimental group were significantly downregulated, whereas the level of Bax was significantly increased (P<0.05). In conclusion, HSF1 protein, as a transcription factor, regulates the expression levels of HSP70, HSP90, MIF, Bcl-2 and Bax, thus controlling the proliferation, apoptosis and invasion of cells. These findings suggest HSF1 protein as a potential target for the treatment of breast cancer.
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Affiliation(s)
- Xiaolan Wang
- Department of Breast and Thyroid Surgery, Affiliated Zhongshan Hospital of Dalian University, Dalian, Liaoning 116000, P.R. China
| | - Dianlong Zhang
- Department of Breast and Thyroid Surgery, Affiliated Zhongshan Hospital of Dalian University, Dalian, Liaoning 116000, P.R. China
| | - Mingqian Cao
- Department of Breast and Thyroid Surgery, Affiliated Zhongshan Hospital of Dalian University, Dalian, Liaoning 116000, P.R. China
| | - Jinling Ba
- Department of Breast and Thyroid Surgery, Affiliated Zhongshan Hospital of Dalian University, Dalian, Liaoning 116000, P.R. China
| | - Bin Wu
- Department of Breast and Thyroid Surgery, Affiliated Zhongshan Hospital of Dalian University, Dalian, Liaoning 116000, P.R. China
| | - Tao Liu
- Department of Breast and Thyroid Surgery, Affiliated Zhongshan Hospital of Dalian University, Dalian, Liaoning 116000, P.R. China
| | - Chen Nie
- Department of Breast and Thyroid Surgery, Affiliated Zhongshan Hospital of Dalian University, Dalian, Liaoning 116000, P.R. China
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Shen C, Ye B, Hu H, Nie C, Ma Y, Lv J, Wu H, Xiang M. Lentivirus-mediated RNA interference inhibits the tumorigenicity of cluster of differentiation 44 + tumor cells in hypopharyngeal cancer. Oncol Lett 2017; 14:5354-5360. [PMID: 29113169 PMCID: PMC5652143 DOI: 10.3892/ol.2017.6838] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2015] [Accepted: 04/27/2017] [Indexed: 11/16/2022] Open
Abstract
The present study aimed to investigate whether the inhibition of cluster of differentiation (CD)44 expression reduces the tumorigenicity of CD44+ cancer stem cells in hypopharyngeal cancer. To assess this, effective recombinant CD44 short hairpin RNA-expressing lentiviruses were produced. Lentivirus-mediated RNA interference (RNAi) was then used to knockdown CD44 gene expression in the hypopharyngeal cancer FaDu cell line. The viability of FaDu cells in the two control groups and the RNAi group (RNAi-CD44 lentiviral vector) was detected using an MTT assay in vitro. Cells from each group were injected into non-obese diabetic/severe combined immunodeficiency mice and their tumorigenicity determined in vivo. Following lentivirus-mediated RNAi, an MTT assay indicated that cells from the RNAi group exhibited lower viability than the control group. The in vivo tumorigenicity study further revealed a significant difference in tumorigenic rates between the RNAi group and the control group (Fisher's exact test, P<0.05). In addition, tumors in the RNAi group of animals had a longer incubation period than those in the control groups, and the mean tumor volume was also significantly smaller (t=3.47, P<0.05). Pathological study confirmed that all tumors were poorly differentiated squamous cell carcinomas with cellular heterogeneity. The viability of the hypopharyngeal cancer FaDu cells in vitro and their tumorigenicity in vivo were markedly inhibited once CD44 was knocked down. The results of the present study therefore suggest that CD44 may confer tumorigenic characteristics upon CD44+ cancer stem cells in hypopharyngeal cancer.
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Affiliation(s)
- Chenling Shen
- Department of Otolaryngology and Head and Neck Surgery, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200092, P.R. China
| | - Bin Ye
- Department of Otolaryngology and Head and Neck Surgery, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200092, P.R. China.,Ear Institute, Shanghai Jiaotong University School of Medicine, Shanghai 200092, P.R. China
| | - Haixia Hu
- Department of Otolaryngology and Head and Neck Surgery, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200092, P.R. China.,Ear Institute, Shanghai Jiaotong University School of Medicine, Shanghai 200092, P.R. China
| | - Chen Nie
- Department of Otolaryngology and Head and Neck Surgery, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200092, P.R. China
| | - Yan Ma
- Department of Otolaryngology and Head and Neck Surgery, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200092, P.R. China
| | - Jingrong Lv
- Department of Otolaryngology and Head and Neck Surgery, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200092, P.R. China.,Ear Institute, Shanghai Jiaotong University School of Medicine, Shanghai 200092, P.R. China
| | - Hao Wu
- Department of Otolaryngology and Head and Neck Surgery, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200092, P.R. China.,Ear Institute, Shanghai Jiaotong University School of Medicine, Shanghai 200092, P.R. China
| | - Mingliang Xiang
- Department of Otolaryngology and Head and Neck Surgery, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200092, P.R. China.,Ear Institute, Shanghai Jiaotong University School of Medicine, Shanghai 200092, P.R. China
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Guo W, Zhang Y, Ling Z, Liu X, Zhao X, Yuan Z, Nie C, Wei Y. Caspase-3 feedback loop enhances Bid-induced AIF/endoG and Bak activation in Bax and p53-independent manner. Cell Death Dis 2015; 6:e1919. [PMID: 26469967 PMCID: PMC4632302 DOI: 10.1038/cddis.2015.276] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [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: 04/29/2015] [Revised: 07/21/2015] [Accepted: 08/28/2015] [Indexed: 02/05/2023]
Abstract
Chemoresistance in cancer has previously been attributed to gene mutations or deficiencies. Bax or p53 deficiency can lead to resistance to cancer drugs. We aimed to find an agent to overcome chemoresistance induced by Bax or p53 deficiency. Here, we used immunoblot, flow-cytometry analysis, gene interference, etc. to show that genistein, a major component of isoflavone that is known to have anti-tumor activities in a variety of models, induces Bax/p53-independent cell death in HCT116 Bax knockout (KO), HCT116 p53 KO, DU145 Bax KO, or DU145 p53 KO cells that express wild-type (WT) Bak. Bak knockdown (KD) only partially attenuated genistein-induced apoptosis. Further results indicated that the release of AIF and endoG also contributes to genistein-induced cell death, which is independent of Bak activation. Conversely, AIF and endoG knockdown had little effect on Bak activation. Knockdown of either AIF or endoG alone could not efficiently inhibit apoptosis in cells treated with genistein, whereas an AIF, endoG, and Bak triple knockdown almost completely attenuated apoptosis. Next, we found that the Akt-Bid pathway mediates Bak-induced caspase-dependent and AIF- and endoG-induced caspase-independent cell death. Moreover, downstream caspase-3 could enhance the release of AIF and endoG as well as Bak activation via a positive feedback loop. Taken together, our data elaborate the detailed mechanisms of genistein in Bax/p53-independent apoptosis and indicate that caspase-3-enhanced Bid activation initiates the cell death pathway. Our results also suggest that genistein may be an effective agent for overcoming chemoresistance in cancers with dysfunctional Bax and p53.
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Affiliation(s)
- W Guo
- Department of Abdominal Oncology, State Key Laboratory of Biotherapy and Cancer Center, Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, 17# People's South Road, Chengdu, Chengdu 610041, PR China
| | - Y Zhang
- Departmant of Oncology, Guizhou People's Hospital, Guizhou 550002, PR China
| | - Z Ling
- Departmant of Oncology, The Fourth People's Hospital of Sichuan province, Chengdu 610041, PR China
| | - X Liu
- Department of Abdominal Oncology, State Key Laboratory of Biotherapy and Cancer Center, Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, 17# People's South Road, Chengdu, Chengdu 610041, PR China
| | - X Zhao
- Department of Abdominal Oncology, State Key Laboratory of Biotherapy and Cancer Center, Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, 17# People's South Road, Chengdu, Chengdu 610041, PR China
| | - Z Yuan
- Department of Abdominal Oncology, State Key Laboratory of Biotherapy and Cancer Center, Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, 17# People's South Road, Chengdu, Chengdu 610041, PR China
| | - C Nie
- Department of Abdominal Oncology, State Key Laboratory of Biotherapy and Cancer Center, Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, 17# People's South Road, Chengdu, Chengdu 610041, PR China
| | - Y Wei
- Department of Abdominal Oncology, State Key Laboratory of Biotherapy and Cancer Center, Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, 17# People's South Road, Chengdu, Chengdu 610041, PR China
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Li J, Yang Z, Wang T, Yu N, Sun L, Nie C, Teng H, Jin C, Chen X, Geng H. Tailored products of dealloying as-sintered Al–Cu alloys in sodium hydroxide solutions. RSC Adv 2015. [DOI: 10.1039/c5ra12112d] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
In this work, a two-step method of cold-press sintering–dealloying was applied to fabricate nanostructured copper/copper oxides mixtures.
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Affiliation(s)
- Jie Li
- School of Materials Science and Engineering
- University of Jinan
- Jinan 250022
- P. R. China
| | - Zhongxi Yang
- School of Materials Science and Engineering
- University of Jinan
- Jinan 250022
- P. R. China
| | - Tianning Wang
- School of Materials Science and Engineering
- University of Jinan
- Jinan 250022
- P. R. China
| | - Nana Yu
- School of Materials Science and Engineering
- University of Jinan
- Jinan 250022
- P. R. China
| | - Lanju Sun
- School of Materials Science and Engineering
- University of Jinan
- Jinan 250022
- P. R. China
| | - Chen Nie
- School of Materials Science and Engineering
- University of Jinan
- Jinan 250022
- P. R. China
| | - Huaide Teng
- School of Materials Science and Engineering
- University of Jinan
- Jinan 250022
- P. R. China
| | - Cheng Jin
- School of Materials Science and Engineering
- University of Jinan
- Jinan 250022
- P. R. China
| | - Xiutong Chen
- School of Materials Science and Engineering
- University of Jinan
- Jinan 250022
- P. R. China
| | - Haoran Geng
- School of Materials Science and Engineering
- University of Jinan
- Jinan 250022
- P. R. China
- Shandong Provincial Key Laboratory of Preparation and Measurement of Building Materials
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Nie C, Xiang M, Shen C, Hu H, Ye B, Wu H. [The spiral ganglion degeneration and the expression of EFR3A in the cochlea of the deaf mice induced by co-administration of kanamycin and furosemide]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2014; 49:930-936. [PMID: 25598374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
OBJECTIVE To investigate the spiral ganglion degeneration and the expression of EFR3A in the cochlea of the deaf mice induced by co-administration of kanamycin and furosemide. METHODS Eight weeks old C57BL/6J mice were administered with a single dose of kanamycin followed by furosemide, then fluorescent immunohistochemistry staining and transmission electron microscopy were applied to observe the SGNs' degeneration process and extent characteristics at 1, 5, 15, 30 and 60 days following treatment. We detected the expression of EFR3A during the degeneration of SGNs via fluorescent immunohistochemistry and western blotting. RESULTS Co-administration of kanamycin and furosemide quickly induced cochlear hair cell death in mice, and then caused progressive degeneration of SGNs. Our results showed that the abnormal morphology of SGNs occurredat day 5 following administration, and the number of SGNs began to decrease at day 15. Compared to the control group, it was found the remarkable increase of the EFR3A protein at the fifth day after co-administration, then decreased to the nearly normal at 15 days following treatment, and no further significant changes thereafter. CONCLUSION The changes of the EFR3A protein expression in the spiral ganglion of the cochlea in mice are coincidence with the time of the SGNs degeneration to happen, which imply that EFR3A may play an important role in the occurrence of the SGNs' degeneration in the cochlea in mice following hair cells loss.
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Affiliation(s)
- Chen Nie
- Department of Otorhinolaryngology Head and Neck Surgery, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200092, China
| | - Mingliang Xiang
- Department of Otorhinolaryngology Head and Neck Surgery, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200092, China.
| | - Chenling Shen
- Department of Otorhinolaryngology Head and Neck Surgery, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200092, China
| | - Haixia Hu
- Department of Otorhinolaryngology Head and Neck Surgery, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200092, China
| | - Bin Ye
- Department of Otorhinolaryngology Head and Neck Surgery, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200092, China
| | - Hao Wu
- Department of Otorhinolaryngology Head and Neck Surgery, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200092, China
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Wan YH, Nie C, Wang HL, Huang CY. Therapeutic Hypothermia (Different Depths, Durations, and Rewarming Speeds) for Acute Ischemic Stroke: A Meta-analysis. J Stroke Cerebrovasc Dis 2014; 23:2736-2747. [DOI: 10.1016/j.jstrokecerebrovasdis.2014.06.017] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2014] [Accepted: 06/20/2014] [Indexed: 10/24/2022] Open
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Nie C, Luo Y, Zhao X, Luo N, Tong A, Liu X, Yuan Z, Wang C, Wei Y. Caspase-9 mediates Puma activation in UCN-01-induced apoptosis. Cell Death Dis 2014; 5:e1495. [PMID: 25356864 PMCID: PMC4649536 DOI: 10.1038/cddis.2014.461] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [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: 04/24/2014] [Revised: 09/17/2014] [Accepted: 09/18/2014] [Indexed: 02/05/2023]
Abstract
The protein kinase inhibitor 7-hydroxystaurosporine (UCN-01) is one of the most potent and frequently used proapoptotic stimuli. The BH3-only molecule of Bcl-2 family proteins has been reported to contribute to UCN-01-induced apoptosis. Here we have found that UCN-01 triggers Puma-induced mitochondrial apoptosis pathway. Our data confirmed that Akt-FoxO3a pathway mediated Puma activation. Importantly, we elucidate the detailed mechanisms of Puma-induced apoptosis. Our data have also demonstrated that caspase-9 is a decisive molecule of Puma induction after UCN-01 treatment. Caspase-9 mediates apoptosis through two kinds of feedback loops. On the one hand, caspase-9 enhances Puma activation by cleaving Bcl-2 and Bcl-xL independent of caspase-3. On the other hand, caspase-9 directly activated caspase-3 in the presence of caspase-3. Caspase-3 could cleave XIAP in an another positive feedback loop to further sensitize cancer cells to UCN-01-induced apoptosis. Therefore, caspase-9 mediates Puma activation to determine the threshold for overcoming chemoresistance in cancer cells.
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Affiliation(s)
- C Nie
- The State Key Laboratory of Biotherapy and Cancer Center/Collaborative Innovation Center of Biotherapy, West China Hospital and College of Life Science, Sichuan University, No. 17 People's South Road, Chengdu 610041, People's Republic of China
| | - Y Luo
- The State Key Laboratory of Biotherapy and Cancer Center/Collaborative Innovation Center of Biotherapy, West China Hospital and College of Life Science, Sichuan University, No. 17 People's South Road, Chengdu 610041, People's Republic of China
| | - X Zhao
- The State Key Laboratory of Biotherapy and Cancer Center/Collaborative Innovation Center of Biotherapy, West China Hospital and College of Life Science, Sichuan University, No. 17 People's South Road, Chengdu 610041, People's Republic of China
| | - N Luo
- Nankai University School of Medicine/Collaborative Innovation Center of Biotherapy, Tianjin 300071, People's Republic of China
| | - A Tong
- The State Key Laboratory of Biotherapy and Cancer Center/Collaborative Innovation Center of Biotherapy, West China Hospital and College of Life Science, Sichuan University, No. 17 People's South Road, Chengdu 610041, People's Republic of China
| | - X Liu
- The State Key Laboratory of Biotherapy and Cancer Center/Collaborative Innovation Center of Biotherapy, West China Hospital and College of Life Science, Sichuan University, No. 17 People's South Road, Chengdu 610041, People's Republic of China
| | - Z Yuan
- The State Key Laboratory of Biotherapy and Cancer Center/Collaborative Innovation Center of Biotherapy, West China Hospital and College of Life Science, Sichuan University, No. 17 People's South Road, Chengdu 610041, People's Republic of China
| | - C Wang
- The State Key Laboratory of Biotherapy and Cancer Center/Collaborative Innovation Center of Biotherapy, West China Hospital and College of Life Science, Sichuan University, No. 17 People's South Road, Chengdu 610041, People's Republic of China
| | - Y Wei
- The State Key Laboratory of Biotherapy and Cancer Center/Collaborative Innovation Center of Biotherapy, West China Hospital and College of Life Science, Sichuan University, No. 17 People's South Road, Chengdu 610041, People's Republic of China
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Nie C, Shen C, Hu H, Ma Y, Wu H, Xiang M. Mid-term results of frontovertical partial laryngectomy for early glottic carcinoma with anterior commissure involvement. Acta Otolaryngol 2014; 134:407-12. [PMID: 24506297 DOI: 10.3109/00016489.2013.872292] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
CONCLUSION Frontovertical partial laryngectomy is useful for treatment of T1 and T2 glottic squamous cell carcinoma with anterior commissure involvement. OBJECTIVE To evaluate the efficiency of frontovertical partial laryngectomy for T1 and T2 glottic carcinoma with anterior commissure involvement. METHODS This was a retrospective review of 58 cases of glottic squamous cell carcinoma with anterior commissure involvement (T1, n = 28; T2, n = 30) that were treated by frontovertical partial laryngectomy between August 2000 and August 2010. RESULTS Postoperative pathology reports confirmed negative tumor margins in every case. All patients were followed postoperatively, with a median follow-up interval of 55 months. Three patients had local recurrence; there were no patients who had cervical or distant metastases. The 3-year local control rate was 94% according to life tables curves. There were no reports of laryngostenosis or dysphagia in any patients, and mean Voice Handicap Index (VHI) questionnaire scores were 32.9.
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Affiliation(s)
- Chen Nie
- Department of Otolaryngology & Head and Neck Surgery, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine , Shanghai , China
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Abstract
CONCLUSIONS The CD44(+) cells have a stronger proliferative capacity and higher tumorigenic potential than the CD44(-) cells, which suggests that the cancer stem cells of hypopharyngeal cancer may exist in the CD44(+) tumor cell population. Therefore, we propose that CD44 is an important biological marker to screen cancer stem cells of hypopharyngeal cancer. OBJECTIVES To study the significance of CD44 as a molecular marker for screening cancer stem cells in hypopharyngeal cancer. METHODS The CD44 expression levels in the hypopharyngeal cancer cell line FaDu were analyzed using flow cytometry. To investigate the biological significance of the CD44(+) population, we sorted the CD44(+) and CD44(-) cell populations by using magnetic-associated cell sorting (MACS) technology. After the separation, the purity of the CD44(+) cells was determined using flow cytometry. The MTT method was used to detect the different proliferation capabilities of the CD44(+) and CD44(-) cells in vitro. The tumorigenicity of the CD44(+) and CD44(-) cells was determined by injecting CD44(+) or CD44(-) cells (1 × 10(6) and 1 × 10(5)) into the body of NOD/SCID mice. RESULTS Some (21.1 ± 1.56)% of the hypopharyngeal cancer cell line FaDu cells expressed CD44. The CD44(+) population was efficiently sorted by MACS, and after separation, the purity of the CD44(+) cells was (99.4 ± 0.29)%. The MTT assay indicated that the sorted CD44(+) cells had a stronger proliferative capacity than the CD44(-) cells. The tumorigenicity study showed that all the mice injected with 1 × 10(6) CD44(+) cells developed tumors (8/8), half the mice injected with 1 × 10(6) CD44(-) cells developed tumors (4/8), 1 of the 8 mice injected with 1 × 10(5) CD44(+) cells developed tumors (12.5%), but none of the mice injected with 1 × 10(5) CD44(-) cells developed any tumors (0/8). At the same concentration, the difference in tumorigenic rates between the CD44(+) and CD44(-) groups was statistically significant (Fisher's exact test, p < 0.05). Furthermore, the CD44(+) group had a shorter incubation period than the CD44(-) group. In addition, the average tumor volume of the CD44(+) group was (2017.81 ± 538.50) mm(3); however, the average tumor volume of the CD44(-) group was (1153.25 ± 503.18) mm(3). The difference was statistically significant (t = 2.67, p < 0.05).
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Affiliation(s)
- Chenling Shen
- Department of Otolaryngology & Head and Neck Surgery, The Ear Institute, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine , Shanghai , China
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Albrechtsen A, Grarup N, Li Y, Sparsø T, Tian G, Cao H, Jiang T, Kim SY, Korneliussen T, Li Q, Nie C, Wu R, Skotte L, Morris AP, Ladenvall C, Cauchi S, Stančáková A, Andersen G, Astrup A, Banasik K, Bennett AJ, Bolund L, Charpentier G, Chen Y, Dekker JM, Doney ASF, Dorkhan M, Forsen T, Frayling TM, Groves CJ, Gui Y, Hallmans G, Hattersley AT, He K, Hitman GA, Holmkvist J, Huang S, Jiang H, Jin X, Justesen JM, Kristiansen K, Kuusisto J, Lajer M, Lantieri O, Li W, Liang H, Liao Q, Liu X, Ma T, Ma X, Manijak MP, Marre M, Mokrosiński J, Morris AD, Mu B, Nielsen AA, Nijpels G, Nilsson P, Palmer CNA, Rayner NW, Renström F, Ribel-Madsen R, Robertson N, Rolandsson O, Rossing P, Schwartz TW, Slagboom PE, Sterner M, Tang M, Tarnow L, Tuomi T, van’t Riet E, van Leeuwen N, Varga TV, Vestmar MA, Walker M, Wang B, Wang Y, Wu H, Xi F, Yengo L, Yu C, Zhang X, Zhang J, Zhang Q, Zhang W, Zheng H, Zhou Y, Altshuler D, ‘t Hart LM, Franks PW, Balkau B, Froguel P, McCarthy MI, Laakso M, Groop L, Christensen C, Brandslund I, Lauritzen T, Witte DR, Linneberg A, Jørgensen T, Hansen T, Wang J, Nielsen R, Pedersen O. Exome sequencing-driven discovery of coding polymorphisms associated with common metabolic phenotypes. Diabetologia 2013; 56:298-310. [PMID: 23160641 PMCID: PMC3536959 DOI: 10.1007/s00125-012-2756-1] [Citation(s) in RCA: 85] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/20/2012] [Accepted: 09/28/2012] [Indexed: 12/13/2022]
Abstract
AIMS/HYPOTHESIS Human complex metabolic traits are in part regulated by genetic determinants. Here we applied exome sequencing to identify novel associations of coding polymorphisms at minor allele frequencies (MAFs) >1% with common metabolic phenotypes. METHODS The study comprised three stages. We performed medium-depth (8×) whole exome sequencing in 1,000 cases with type 2 diabetes, BMI >27.5 kg/m(2) and hypertension and in 1,000 controls (stage 1). We selected 16,192 polymorphisms nominally associated (p < 0.05) with case-control status, from four selected annotation categories or from loci reported to associate with metabolic traits. These variants were genotyped in 15,989 Danes to search for association with 12 metabolic phenotypes (stage 2). In stage 3, polymorphisms showing potential associations were genotyped in a further 63,896 Europeans. RESULTS Exome sequencing identified 70,182 polymorphisms with MAF >1%. In stage 2 we identified 51 potential associations with one or more of eight metabolic phenotypes covered by 45 unique polymorphisms. In meta-analyses of stage 2 and stage 3 results, we demonstrated robust associations for coding polymorphisms in CD300LG (fasting HDL-cholesterol: MAF 3.5%, p = 8.5 × 10(-14)), COBLL1 (type 2 diabetes: MAF 12.5%, OR 0.88, p = 1.2 × 10(-11)) and MACF1 (type 2 diabetes: MAF 23.4%, OR 1.10, p = 8.2 × 10(-10)). CONCLUSIONS/INTERPRETATION We applied exome sequencing as a basis for finding genetic determinants of metabolic traits and show the existence of low-frequency and common coding polymorphisms with impact on common metabolic traits. Based on our study, coding polymorphisms with MAF above 1% do not seem to have particularly high effect sizes on the measured metabolic traits.
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Affiliation(s)
- A. Albrechtsen
- Centre of Bioinformatics, Faculty of Science, University of Copenhagen, Copenhagen, Denmark
| | - N. Grarup
- The Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, DIKU Building, Universitetsparken 1, 2100 Copenhagen Ø, Denmark
| | - Y. Li
- BGI-Shenzhen, Beishan Industrial Zone, Yantian District, 518083 Shenzhen, China
| | - T. Sparsø
- The Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, DIKU Building, Universitetsparken 1, 2100 Copenhagen Ø, Denmark
| | | | - H. Cao
- BGI-Shenzhen, Beishan Industrial Zone, Yantian District, 518083 Shenzhen, China
| | - T. Jiang
- BGI-Shenzhen, Beishan Industrial Zone, Yantian District, 518083 Shenzhen, China
| | - S. Y. Kim
- Department of Integrative Biology, University of California, 3060 Valley Life Sciences, Bldg #3140, Berkeley, CA 94720-3140 USA
| | - T. Korneliussen
- Centre of Bioinformatics, Faculty of Science, University of Copenhagen, Copenhagen, Denmark
| | - Q. Li
- BGI-Shenzhen, Beishan Industrial Zone, Yantian District, 518083 Shenzhen, China
| | - C. Nie
- BGI-Shenzhen, Beishan Industrial Zone, Yantian District, 518083 Shenzhen, China
| | - R. Wu
- BGI-Shenzhen, Beishan Industrial Zone, Yantian District, 518083 Shenzhen, China
| | - L. Skotte
- Centre of Bioinformatics, Faculty of Science, University of Copenhagen, Copenhagen, Denmark
| | - A. P. Morris
- Wellcome Trust Centre for Human Genetics, University of Oxford, Oxford, UK
| | - C. Ladenvall
- Department of Clinical Sciences, Diabetes and Endocrinology, Lund University and Lund University Diabetes Centre, Malmö, Sweden
| | - S. Cauchi
- UMR CNRS 8199, Genomic and Metabolic Disease, Lille, France
| | - A. Stančáková
- Department of Medicine, University of Eastern Finland and Kuopio University Hospital, Kuopio, Finland
| | - G. Andersen
- The Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, DIKU Building, Universitetsparken 1, 2100 Copenhagen Ø, Denmark
| | - A. Astrup
- Department of Human Nutrition, Faculty of Science, University of Copenhagen, Copenhagen, Denmark
| | - K. Banasik
- The Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, DIKU Building, Universitetsparken 1, 2100 Copenhagen Ø, Denmark
| | - A. J. Bennett
- Oxford Centre for Diabetes, Endocrinology and Metabolism, University of Oxford, Oxford, UK
| | - L. Bolund
- Institute of Human Genetics, Aarhus University, Aarhus, Denmark
| | - G. Charpentier
- Department of Endocrinology-Diabetology, Corbeil-Essonnes Hospital, Corbeil-Essonnes, France
| | - Y. Chen
- BGI-Shenzhen, Beishan Industrial Zone, Yantian District, 518083 Shenzhen, China
| | - J. M. Dekker
- EMGO Institute for Health and Care Research, VU University Medical Center, Amsterdam, the Netherlands
| | - A. S. F. Doney
- Diabetes Research Centre, Biomedical Research Institute, University of Dundee, Ninewells Hospital, Dundee, UK
- Pharmacogenomics Centre, Biomedical Research Institute, University of Dundee, Ninewells Hospital, Dundee, UK
| | - M. Dorkhan
- Department of Clinical Sciences, Diabetes and Endocrinology, Lund University and Lund University Diabetes Centre, Malmö, Sweden
| | - T. Forsen
- Department of General Practice and Primary Health Care, University of Helsinki, Helsinki, Finland
- Vasa Health Care Center, Vaasa, Finland
| | - T. M. Frayling
- Genetics of Complex Traits, Institute of Biomedical and Clinical Science, Peninsula Medical School, University of Exeter, Exeter, UK
- Diabetes Genetics, Institute of Biomedical and Clinical Science, Peninsula Medical School, University of Exeter, Exeter, UK
| | - C. J. Groves
- Oxford Centre for Diabetes, Endocrinology and Metabolism, University of Oxford, Oxford, UK
| | - Y. Gui
- BGI-Shenzhen, Beishan Industrial Zone, Yantian District, 518083 Shenzhen, China
| | - G. Hallmans
- Department of Public Health and Clinical Medicine, Umeå University, Umeå, Sweden
| | - A. T. Hattersley
- Genetics of Complex Traits, Institute of Biomedical and Clinical Science, Peninsula Medical School, University of Exeter, Exeter, UK
- Diabetes Genetics, Institute of Biomedical and Clinical Science, Peninsula Medical School, University of Exeter, Exeter, UK
| | - K. He
- Chinese PLA General Hospital, Beijing, China
| | - G. A. Hitman
- Centre for Diabetes, Blizard Institute, Queen Mary University of London, London, UK
| | - J. Holmkvist
- The Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, DIKU Building, Universitetsparken 1, 2100 Copenhagen Ø, Denmark
- Vipergen Aps, Copenhagen, Denmark
| | - S. Huang
- BGI-Shenzhen, Beishan Industrial Zone, Yantian District, 518083 Shenzhen, China
- School of Bioscience and Biotechnology, South China University of Technology, Guangzhou, China
| | - H. Jiang
- BGI-Shenzhen, Beishan Industrial Zone, Yantian District, 518083 Shenzhen, China
| | - X. Jin
- BGI-Shenzhen, Beishan Industrial Zone, Yantian District, 518083 Shenzhen, China
| | - J. M. Justesen
- The Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, DIKU Building, Universitetsparken 1, 2100 Copenhagen Ø, Denmark
| | - K. Kristiansen
- Department of Biology, Faculty of Science, University of Copenhagen, Copenhagen, Denmark
| | - J. Kuusisto
- Department of Medicine, University of Eastern Finland and Kuopio University Hospital, Kuopio, Finland
| | - M. Lajer
- Steno Diabetes Center, Gentofte, Denmark
| | - O. Lantieri
- Institut inter Regional pour la Santé (IRSA), La Riche, France
| | - W. Li
- BGI-Shenzhen, Beishan Industrial Zone, Yantian District, 518083 Shenzhen, China
| | - H. Liang
- BGI-Shenzhen, Beishan Industrial Zone, Yantian District, 518083 Shenzhen, China
| | - Q. Liao
- BGI-Shenzhen, Beishan Industrial Zone, Yantian District, 518083 Shenzhen, China
| | - X. Liu
- BGI-Shenzhen, Beishan Industrial Zone, Yantian District, 518083 Shenzhen, China
| | - T. Ma
- BGI-Shenzhen, Beishan Industrial Zone, Yantian District, 518083 Shenzhen, China
| | - X. Ma
- BGI-Shenzhen, Beishan Industrial Zone, Yantian District, 518083 Shenzhen, China
| | - M. P. Manijak
- The Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, DIKU Building, Universitetsparken 1, 2100 Copenhagen Ø, Denmark
| | - M. Marre
- Department of Endocrinology, Diabetology and Nutrition, Bichat-Claude Bernard University Hospital, Assistance Publique des Hôpitaux de Paris, Paris, France
- Inserm U695, Université Denis Diderot Paris 7, Paris, France
| | - J. Mokrosiński
- The Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, DIKU Building, Universitetsparken 1, 2100 Copenhagen Ø, Denmark
- Laboratory for Molecular Pharmacology, Department of Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - A. D. Morris
- Diabetes Research Centre, Biomedical Research Institute, University of Dundee, Ninewells Hospital, Dundee, UK
- Pharmacogenomics Centre, Biomedical Research Institute, University of Dundee, Ninewells Hospital, Dundee, UK
| | - B. Mu
- BGI-Shenzhen, Beishan Industrial Zone, Yantian District, 518083 Shenzhen, China
| | - A. A. Nielsen
- Department of Clinical Biochemistry, Vejle Hospital, Vejle, Denmark
| | - G. Nijpels
- EMGO Institute for Health and Care Research, VU University Medical Center, Amsterdam, the Netherlands
| | - P. Nilsson
- Department of Clinical Sciences, Medicine, Lund University, Malmö, Sweden
| | - C. N. A. Palmer
- Diabetes Research Centre, Biomedical Research Institute, University of Dundee, Ninewells Hospital, Dundee, UK
- Pharmacogenomics Centre, Biomedical Research Institute, University of Dundee, Ninewells Hospital, Dundee, UK
| | - N. W. Rayner
- Wellcome Trust Centre for Human Genetics, University of Oxford, Oxford, UK
- Oxford Centre for Diabetes, Endocrinology and Metabolism, University of Oxford, Oxford, UK
| | - F. Renström
- Department of Clinical Sciences, Genetic and Molecular Epidemiology Unit, Skåna University Hospital, Lund University, Malmö, Sweden
| | - R. Ribel-Madsen
- The Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, DIKU Building, Universitetsparken 1, 2100 Copenhagen Ø, Denmark
| | - N. Robertson
- Wellcome Trust Centre for Human Genetics, University of Oxford, Oxford, UK
- Oxford Centre for Diabetes, Endocrinology and Metabolism, University of Oxford, Oxford, UK
| | - O. Rolandsson
- Department of Public Health and Clinical Medicine, Umeå University, Umeå, Sweden
| | - P. Rossing
- Steno Diabetes Center, Gentofte, Denmark
| | - T. W. Schwartz
- The Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, DIKU Building, Universitetsparken 1, 2100 Copenhagen Ø, Denmark
- Laboratory for Molecular Pharmacology, Department of Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - P. E. Slagboom
- Section of Molecular Epidemiology, Leiden University Medical Center, Leiden, the Netherlands
- Netherlands Center for Healthy Ageing, Leiden, the Netherlands
| | - M. Sterner
- Department of Clinical Sciences, Diabetes and Endocrinology, Lund University and Lund University Diabetes Centre, Malmö, Sweden
| | | | - M. Tang
- BGI-Shenzhen, Beishan Industrial Zone, Yantian District, 518083 Shenzhen, China
| | - L. Tarnow
- Steno Diabetes Center, Gentofte, Denmark
| | | | - T. Tuomi
- Department of Medicine, Helsinki University Hospital, Helsinki, Finland
- Folkhälsan Research Center, Helsinki, Finland
| | - E. van’t Riet
- EMGO Institute for Health and Care Research, VU University Medical Center, Amsterdam, the Netherlands
| | - N. van Leeuwen
- Department of Molecular Cell Biology, Leiden University Medical Center, Leiden, the Netherlands
| | - T. V. Varga
- Department of Clinical Sciences, Genetic and Molecular Epidemiology Unit, Skåna University Hospital, Lund University, Malmö, Sweden
| | - M. A. Vestmar
- The Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, DIKU Building, Universitetsparken 1, 2100 Copenhagen Ø, Denmark
- Laboratory for Molecular Pharmacology, Department of Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - M. Walker
- Diabetes Research Group, School of Clinical Medical Sciences, Newcastle University, Newcastle upon Tyne, UK
| | - B. Wang
- BGI-Shenzhen, Beishan Industrial Zone, Yantian District, 518083 Shenzhen, China
| | - Y. Wang
- BGI-Shenzhen, Beishan Industrial Zone, Yantian District, 518083 Shenzhen, China
| | - H. Wu
- BGI-Shenzhen, Beishan Industrial Zone, Yantian District, 518083 Shenzhen, China
| | - F. Xi
- BGI-Shenzhen, Beishan Industrial Zone, Yantian District, 518083 Shenzhen, China
| | - L. Yengo
- UMR CNRS 8199, Genomic and Metabolic Disease, Lille, France
| | - C. Yu
- BGI-Shenzhen, Beishan Industrial Zone, Yantian District, 518083 Shenzhen, China
| | - X. Zhang
- BGI-Shenzhen, Beishan Industrial Zone, Yantian District, 518083 Shenzhen, China
| | - J. Zhang
- BGI-Shenzhen, Beishan Industrial Zone, Yantian District, 518083 Shenzhen, China
| | - Q. Zhang
- BGI-Shenzhen, Beishan Industrial Zone, Yantian District, 518083 Shenzhen, China
| | - W. Zhang
- BGI-Shenzhen, Beishan Industrial Zone, Yantian District, 518083 Shenzhen, China
| | - H. Zheng
- BGI-Shenzhen, Beishan Industrial Zone, Yantian District, 518083 Shenzhen, China
| | - Y. Zhou
- BGI-Shenzhen, Beishan Industrial Zone, Yantian District, 518083 Shenzhen, China
| | - D. Altshuler
- Analytic and Translational Genetics Unit, Massachusetts General Hospital, Boston, MA USA
- Broad Institute of Harvard and MIT, Cambridge, MA USA
| | - L. M. ‘t Hart
- Section of Molecular Epidemiology, Leiden University Medical Center, Leiden, the Netherlands
- Department of Molecular Cell Biology, Leiden University Medical Center, Leiden, the Netherlands
| | - P. W. Franks
- Department of Public Health and Clinical Medicine, Umeå University, Umeå, Sweden
- Department of Clinical Sciences, Genetic and Molecular Epidemiology Unit, Skåna University Hospital, Lund University, Malmö, Sweden
- Department of Nutrition, Harvard School of Public Health, Boston, MA USA
| | - B. Balkau
- Inserm CESP U1018, Villejuif, France
| | - P. Froguel
- UMR CNRS 8199, Genomic and Metabolic Disease, Lille, France
- Genomic Medicine, Hammersmith Hospital, Imperial College London, London, UK
| | - M. I. McCarthy
- Wellcome Trust Centre for Human Genetics, University of Oxford, Oxford, UK
- Oxford Centre for Diabetes, Endocrinology and Metabolism, University of Oxford, Oxford, UK
- Oxford National Institute for Health Research Biomedical Research Centre, Churchill Hospital, Oxford, UK
| | - M. Laakso
- Department of Medicine, University of Eastern Finland and Kuopio University Hospital, Kuopio, Finland
| | - L. Groop
- Department of Clinical Sciences, Diabetes and Endocrinology, Lund University and Lund University Diabetes Centre, Malmö, Sweden
| | - C. Christensen
- Department of Internal Medicine and Endocrinology, Vejle Hospital, Vejle, Denmark
| | - I. Brandslund
- Department of Clinical Biochemistry, Vejle Hospital, Vejle, Denmark
- Institute of Regional Health Research, University of Southern Denmark, Odense, Denmark
| | - T. Lauritzen
- Department of General Practice, Aarhus University, Aarhus, Denmark
| | | | - A. Linneberg
- Research Centre for Prevention and Health, Glostrup University Hospital, Glostrup, Denmark
| | - T. Jørgensen
- Research Centre for Prevention and Health, Glostrup University Hospital, Glostrup, Denmark
- Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
- Faculty of Medicine, University of Aalborg, Aalborg, Denmark
| | - T. Hansen
- The Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, DIKU Building, Universitetsparken 1, 2100 Copenhagen Ø, Denmark
- Faculty of Health Sciences, University of Southern Denmark, Odense, Denmark
| | - J. Wang
- The Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, DIKU Building, Universitetsparken 1, 2100 Copenhagen Ø, Denmark
- BGI-Shenzhen, Beishan Industrial Zone, Yantian District, 518083 Shenzhen, China
- Department of Biology, Faculty of Science, University of Copenhagen, Copenhagen, Denmark
| | - R. Nielsen
- Centre of Bioinformatics, Faculty of Science, University of Copenhagen, Copenhagen, Denmark
- Department of Integrative Biology, University of California, 3060 Valley Life Sciences, Bldg #3140, Berkeley, CA 94720-3140 USA
- Department of Statistics, University of California, Berkeley, CA USA
| | - O. Pedersen
- The Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, DIKU Building, Universitetsparken 1, 2100 Copenhagen Ø, Denmark
- Faculty of Health Sciences, Aarhus University, Aarhus, Denmark
- Hagedorn Research Institute, Gentofte, Denmark
- Institute of Biomedical Science, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
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Nie C, Bao HP. [Analysis of the related risk factors of diabetic peripheral neuropathy]. Zhonghua Shi Yan He Lin Chuang Bing Du Xue Za Zhi 2012; 26:467-469. [PMID: 23627032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
OBJECTIVE To explore the risk factors of diabetic peripheral neuropathy (DPN) and the relationship between DPN and diabetic retinopathy (DR). METHODS The data of the in-patients with type 2 diabetes mellitus (T2 DM) were retrospectively studied. A total of 200 T2 DM patients were divided into DPN group (n = 136) and non-DPN group (n = 64) according to peripheral neuropathy. The basic clinical data and the incidence rate of DR were compared between two groups. Logistic regression analysis was used to study the risk factors of DPN. RESULTS The course of disease, the level of BMI, glycosylated hemoglobin (HbA1c), 2 hour postprandial blood glucose (2 hPG), 2 hour glucose C peptide (2 hC-P) and the incidence rate of the DR were significantly different between two groups (P < 0.01). Logistic regression analysis showed that significant differences were observed in T2 DM complicated by DR (P = 0.023), the course of disease (P = 0.008), the level of HbA1c (P = 0.006), BMI (P = 0.000) and 2 hC-P (P = 0.065). CONCLUSION Diabetic retinopathy, the course of disease, the level of BMI,HbA1c and 2 hC-P are the risk factors for type 2 diabetic peripheral neuropathy. Diabetic peripheral neuropathy is positive correlated with diabetic retinopathy.
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Affiliation(s)
- Chen Nie
- Department of Neurology, the Second Affiliated Hospital of Dalian Medical University, Dalian 116027, China
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Nie C, Marlow WH. Equilibrium adsorption of water-like molecules on single nanospheres. Mol Phys 2007. [DOI: 10.1080/00268970701241631] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Nie C, Hargarten S. Wisconsin needs to support death investigation: here's why. WMJ 2001; 100:60-2. [PMID: 11419375] [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: 02/20/2023]
Abstract
Medical examiners and coroners (ME/CO) can provide essential data for injury reporting and prevention, but often lack the resources, support and training to supply this important information. With increased interest in injury data, questions surrounding data collection and reporting are being raised. This article describes the experience of the Wisconsin Firearm Injury Reporting System, discusses results of a survey completed by Wisconsin ME/CO and offers recommendations for improved injury reporting and support for death investigation.
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Affiliation(s)
- C Nie
- Firearm Injury Center, Department of Emergency Medicine, Medical College of Wisconsin, 9200 W Wisconsin Ave, Milwaukee, WI 53226, USA.
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Nie C, Zhao S. A diagnostic kit to screen individuals with glucose-6-phosphate dehydrogenase defect and its application on anti-malaria spot in the countryside. Chin Med J (Engl) 1999; 112:349-51. [PMID: 11593537] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/21/2023] Open
Abstract
OBJECTIVE To prepare a kit for screening individuals with glucose-6-phosphate dehydrogenase (G6PD) defect. The kit is easy to use and to get the fast as well as reliable results. Especially it is suitable for the anti-malaria spots usually located in the remote countryside where no electricity is available. METHODS The double filter paper method and other 2 techniques, the quantitative method and the single filter paper method, were used to determine G6PD activity in 70 samples of human erythrocytes. It was found that the results of the double filter paper method and those of the single filter paper method in the first 8 hours after the drying of the blood-soaked filter paper were consistent with those of the quantitative method. When a piece of blood-soaked paper is left under room temperature more than 24 hours, G6PD in the erythrocytes deteriorated spontaneously and consequently the number of positive cases increased along with the elapse of time. RESULTS Satisfactory results were achieved when the kit was used to screen cases of G6PD defect from 151 farmers who were receiving anti-malaria therapy. The kit was made according to a technique named "double filter paper" method. CONCLUSIONS These findings suggest that the double filter paper method can reveal the level of G6PD activity and the results are rapidly obtained when the method is used on the anti-malaria spot.
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Affiliation(s)
- C Nie
- Department of Parasitology, Medical College of Jinan University, Guangzhou 510632, China
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Nie C, Wang J, Li G. [Observation of AChE location in chicken cochlea]. Lin Chuang Er Bi Yan Hou Ke Za Zhi 1997; 11:198-9, 208. [PMID: 9812795] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
Abstract
The efferent auditory innervation of the chicken was investigated by means of AChE histochemical stain. The localization of AChE in the chicken was observed by use of mounted and freezing microtome in basilar papilla. The positive fibers of AChE stain were distributed over the lateral aspect of the superior cartilaginous plate of the basilar papilla. Radical fibers leave this lontigudinal boundle to supply the hair cells. Two types of efferent synapsis could be distinguished: short hair cells with large cup-like efferent terminal, and tall cells with small, irregular terminal. The characteristics and the significance of experimental study are also discussed.
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Affiliation(s)
- C Nie
- Department of Otorhinolaryngology, Union Hospital, Tongji Medical University, Wuhan
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Nie C, Zhao S, Lu Y. Microdetermination of G6PD isoenzyme activity in human erythrocytes by thin-layer PAG-IEF. J Biochem Biophys Methods 1992; 25:245-51. [PMID: 1494035 DOI: 10.1016/0165-022x(92)90019-7] [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] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
An improved method of microdetermination of G6PD isoenzyme activity in human erythrocytes was developed by modification of previously reported procedures. The volume of blood samples was reduced from 2 ml to 20 microliters. After hemolysis in 2% Triton X-100 and 0.1% beta-mercaptoethanol, the samples were subjected to centrifugation and thin-layer isoelectric focusing in polyacrylamide gel (PAG-IEF). By comparison with the original method, excellent resolution was obtained by this more rapid and simple procedure.
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Affiliation(s)
- C Nie
- Hunan Medical University, Changsha, China
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