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Gan XY, Li QW, Yuan Q. [Research progress in methylation modification in tooth root development]. Zhonghua Kou Qiang Yi Xue Za Zhi 2024; 59:502-506. [PMID: 38637005 DOI: 10.3760/cma.j.cn112144-20240115-00023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 04/20/2024]
Abstract
Methylation modification is one of the most common epigenetic modification regulation in eukaryotes, including histone methylation, DNA methylation, RNA methylation, etc., which plays an important regulatory role in physiological processes and pathologic occurrence and development. Tooth root development is carried out by both epithelial and mesenchymal cells and involves a variety of cell-molecular interactions. In recent years, a large number of studies have found that methylation plays a key role in the regulation of tooth root development and expands the mechanism network of tooth root development. In this paper, we review the role and mechanism of methylation modification during root development.
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Affiliation(s)
- X Y Gan
- Department of Oral Implantology, West China Hospital of Stomatology, Sichuan University & State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases, Chengdu 610041, China
| | - Q W Li
- Department of Oral Implantology, West China Hospital of Stomatology, Sichuan University & State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases, Chengdu 610041, China
| | - Q Yuan
- Department of Oral Implantology, West China Hospital of Stomatology, Sichuan University & State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases, Chengdu 610041, China
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Gu XS, Ming D, Chu XL, Song XZ, Li YR, Wu ZR, Li Q, Li QW. An ultrasound-guided percutaneous electrical nerve stimulation regimen devised using finite element modeling promotes functional recovery after median nerve transection. Neural Regen Res 2023; 18:683-688. [DOI: 10.4103/1673-5374.350215] [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: 11/04/2022] Open
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Song XZ, Chu XL, Liu T, Cao YT, Li RX, Gao MW, Li QW, Gu XS, Ming D. Case report: Ultrasound-guided multi-site electroacupuncture stimulation for a patient with spinal cord injury. Front Neurol 2022; 13:903207. [PMID: 36090881 PMCID: PMC9448914 DOI: 10.3389/fneur.2022.903207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Accepted: 08/02/2022] [Indexed: 11/25/2022] Open
Abstract
Introduction Spinal cord injury causes permanent neurological deficits, which have devastating physical, social, and vocational consequences for patients and their families. Traditional Chinese medicine uses acupuncture to treat neuropathic pain and improve nerve conduction velocity. This treatment can also reduce peripheral nerve injury joint contracture and muscle atrophy in affected patients. And it's got a remarkable restoration when electrical stimulation therapy on impaired peripheral nerves in animal models and clinical trials. Case description A 48-year-old woman was hit by a heavy object that injured her lower back. The patient had a T12-L1 vertebral flexion and stretch fracture with traumatic spinal stenosis. The patient was transferred to the rehabilitation department after posterior T12-L2-segment pedicle screw system distraction and reduction, internal fixation, decompression, and bone graft fusion. Ultrasound-guided electroacupuncture was used to stimulate the sacral nerve, the spinal nerve, and the head of the patient, accompanied by spinal joint loosening training, respiratory training, lumbar comprehensive sports training, paraplegic limbs comprehensive training, and other manipulative treatment. Outcomes After the intervention, the patient showed significant improvements in sensory and motor scores, resulting in functional recovery according to ASIA and FIM. The patient gradually showed reasonable functional remission. Discussion The sacral nerve, the spinal cord, and the head were electrically stimulated by ultrasound-guided electroacupuncture in terms of intervention, and various functions of the patient were alleviated to a certain extent. The efficacy of ultrasound-guided electroacupuncture stimulation in treating neurologic symptoms should be validated in future clinical trials.
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Affiliation(s)
- Xi-Zi Song
- Academy of Medical Engineering and Translational Medicine, Tianjin University, Tianjin, China
| | - Xiao-Lei Chu
- Department of Rehabilitation, Tianjin University Tianjin Hospital, Tianjin, China
| | - Tao Liu
- College of Exercise & Health Sciences, Tianjin University of Sport, Tianjin, China
| | - Yu-Tong Cao
- Academy of Medical Engineering and Translational Medicine, Tianjin University, Tianjin, China
| | - Rui-Xin Li
- College of Exercise & Health Sciences, Tianjin University of Sport, Tianjin, China
| | - Ming-Wei Gao
- College of Exercise & Health Sciences, Tianjin University of Sport, Tianjin, China
| | - Qing-Wen Li
- College of Exercise & Health Sciences, Tianjin University of Sport, Tianjin, China
| | - Xiao-Song Gu
- Academy of Medical Engineering and Translational Medicine, Tianjin University, Tianjin, China
- *Correspondence: Xiao-Song Gu
| | - Dong Ming
- Academy of Medical Engineering and Translational Medicine, Tianjin University, Tianjin, China
- College of Precision Instruments and Optoelectronics Engineering, Tianjin University, Tianjin, China
- Dong Ming
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Li ST, Lin Y, Ou BX, Liu DE, Li QW, Nong YJ, Wu SM, Qiu ZX, Huang Z. [Effects of comprehensive treatment of infected wounds in patients with iatrogenic Cushing 's syndrome]. Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi 2022; 38:512-519. [PMID: 35764576 DOI: 10.3760/cma.j.cn501225-20220329-00106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Objective: To investigate the characteristics and comprehensive treatment of infected wounds in patients with iatrogenic Cushing's syndrome. Methods: A retrospective observational study was conducted. From May 2012 to December 2021, the data of 19 patients with iatrogenic Cushing's syndrome discharged from the Department of Burns and Plastic Surgery of the First Affiliated Hospital of Guangxi Medical University were collected, including 8 males and 11 females, aged 28-71 (56±11) years, with 12 cases of infected acute wounds and 7 cases of infected chronic wounds. The lesions were located in the limbs, perianal, and sacrococcygeal regions, with original infection ranging from 9 cm×5 cm to 85 cm×45 cm. After admission, the patients were performed with multidisciplinary assisted diagnosis and treatment, and the wounds were treated with debridement and vacuum sealing drainage, according to the size, severity of infection, suture tension, and bone and tendon tissue exposure of wounds, direct suture or autologous skin and/or artificial dermis and/or autologous tissue flap transplantation was selected for wound repair. The levels of cortisol and adrenocorticotropic hormone (ACTH) of patients at 8:00, 16:00, and 24:00 within 24 h after admission were counted. After admission, the number of operations, wound repair methods, and wound and skin/flap donor site healing of patients were recorded. During follow-up, the wounds were observed for recurrent infection. Results: The cortisol levels of 16 patients at 8:00, 16:00, and 24:00 within 24 h after admission were (130±54), (80±16), and (109±39) nmol/L, respectively, and ACTH levels were (7.2±2.8), (4.1±1.8), and (6.0±3.0) pg/mL, respectively; and the other 3 patients had no such statistical results. After admission, the number of surgical operation for patients was 3.4±0.9. The following methods were used for wound repair, including direct suturing in 4 cases and autologous skin and/or artificial dermis grafting in 9 cases, of which 2 cases underwent stage Ⅱ autologous skin grafting after artificial dermis grafting in stage Ⅰ, and 6 cases had pedicled retrograde island flap+autologous skin grafting. The wound healing was observed, showing that all directly sutured wounds healed well; the wounds in 6 cases of autologous skin and/or artificial dermis grafting healed well, and the wounds in 3 cases also healed well after the secondary skin grafting; the flaps in 4 cases survived well with the wounds in 2 cases with distal perforators flap arteries circumfluence obstacle of posterior leg healed after stage Ⅱ debridement and autologous skin grafting. The healing status of skin/flap donor sites was followed showing that the donor sites of medium-thickness skin grafts in the thigh of 4 cases were well healed after transplanted with autologous split-thickness grafts from scalp; the donor sites of medium-thickness skin grafts in 3 cases did not undergo split-thickness skin grafting, of which 2 cases had poor healing but healed well after secondary skin grafting 2 weeks after surgery; the donor sites of split-thickness skin grafts in the head of 2 patients healed well; and all donor sites of flaps healed well after autologous skin grafting. During follow-up of more than half a year, 3 gout patients were hospitalized again for surgical treatment due to gout stone rupture, 4 patients were hospitalized again for surgical treatment due to infection, and no recurrent infection was found in the rest of patients. Conclusions: The infected wounds in patients with iatrogenic Cushing's syndrome have poor ability to regenerate and are prone to repeated infection. Local wound treatment together with multidisciplinary comprehensive treatment should be performed to control infection and close wounds in a timely manner, so as to maximize the benefits of patients.
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Affiliation(s)
- S T Li
- Department of Burns and Plastic Surgery, the First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China
| | - Y Lin
- Department of Burns and Plastic Surgery, the First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China
| | - B X Ou
- Department of Burns and Plastic Surgery, the First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China
| | - D E Liu
- Department of Burns and Plastic Surgery, the First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China
| | - Q W Li
- Department of Burns and Plastic Surgery, the First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China
| | - Y J Nong
- Department of Burns and Plastic Surgery, the First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China
| | - S M Wu
- Department of Burns and Plastic Surgery, the First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China
| | - Z X Qiu
- Department of Burns and Plastic Surgery, the First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China
| | - Zhenxing Huang
- Department of Endocrinology, the First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China
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Han XS, Li QW, Guo PL, Li JJ. [Multivariate analysis of the effect of two liver resection methods on the survival outcome of patients with intrahepatic cholangiocarcinoma]. Zhonghua Yi Xue Za Zhi 2022; 102:1364-1368. [PMID: 35545580 DOI: 10.3760/cma.j.cn112137-20220119-00142] [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: 06/15/2023]
Abstract
Objective: To investigate the effect of anatomical hepatectomy and non-anatomic hepatectomy in the treatment of elderly patients with intrahepatic cholangiocarcinoma (IHCC) and their impact on survival outcomes. Methods: In this study, a retrospective method was used to select elderly patients with IHCC who were surgically treated in Shangqiu First People's Hospital from April 2014 to April 2018, and were divided into anatomic resection group and non-anatomical resection group according to the surgical methods they received.The factors affecting the survival outcome of IHCC in the two liver resection methods were analyzed and compared, as well as the effects of liver cirrhosis rate, TNM stage, ascites rate, lymph node metastasis rate, and vascular invasion rate on survival. Results: A total of 181 cases were included in this study, including 87 cases in the anatomical resection group, with 54 males and 33 females, aged (71.4±5.2) years old;There were 94 cases in the non-anatomical resection group, including 49 males and 45 females, aged (70.8±4.8) years.The 3-year survival rate of the anatomical resection group was 41.4% (36/87), which was higher than that of the non-anatomical resection group (25.5% (24/94), the difference was statistically significant (P<0.05);The median survival time of the anatomic resection group was longer than that of the non-anatomical resection group, and the difference was statistically significant P<0.05;The patient's TNM stage was stage III [OR (95%CI): 2.168 (1.245-3.776)], lymph node metastasis [1.664 (1.087-2.545)], and vascular invasion [1.883 (1.167-3.038)] was an independent risk factor for death 3 years after surgery (P<0.05), The patient's anatomical liver resection was a protective factor for the 3-year follow-up survival (P<0.05). Conclusion: The postoperative survival of elderly patients with IHCC is affected by many factors, but anatomic liver resection is beneficial to prolong the survival time of patients.
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Affiliation(s)
- X S Han
- Department of Gastrointestinal Hepatobiliary Surgery, Shangqiu First Hospital, Shangqiu 476000,China
| | - Q W Li
- Department of Gastrointestinal Hepatobiliary Surgery, Shangqiu First Hospital, Shangqiu 476000,China
| | - P L Guo
- Department of Gastrointestinal Hepatobiliary Surgery, Shangqiu First Hospital, Shangqiu 476000,China
| | - J J Li
- Department of Gastrointestinal Hepatobiliary Surgery, Shangqiu First Hospital, Shangqiu 476000,China
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Jian Y, Sun Y, Feng S, Zang C, Li B, Qiu S, Li QW, Yan X, Sun DM. Laminated three-dimensional carbon nanotube integrated circuits. Nanoscale 2022; 14:7049-7054. [PMID: 35475485 DOI: 10.1039/d2nr01498j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The fabrication procedure for each layer of the device in monolithic three-dimensional (3D) integration still follows the design philosophy of traditional planar silicon-based circuits, and such integrated circuits will ultimately be limited by the same scaling constraints that face silicon field-effect transistors. We report the direct formation of laminated 3D integrated circuits by the layer-by-layer stacking of each component through two different techniques. One is to use carbon nanotubes (CNTs) as the channels of thin-film transistors because of their low-temperature fabrication and layer-to-layer transfer capabilities. The other is to use a suitable separator between every two layers to isolate them, because the separator is not only able to maintain the stability of the performance of each component after coating, but is also a good insulator that can prevent interlayer interactions. A 5-stage CNT ring oscillator laminated onto a single inverter is finally reported, which can reduce the device area by approximately 80%, and should be greatly helpful for the continuous improvement of device functionality and integration.
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Affiliation(s)
- Yang Jian
- College of Information Science and Engineering, Northeastern University, 3-11 Wenhua Road, Shenyang, 110819, China.
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang, 110016, China.
| | - Yun Sun
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang, 110016, China.
- School of Material Science and Engineering, University of Science and Technology of China, 72 Wenhua Road, Shenyang, 110016, China
| | - Shun Feng
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang, 110016, China.
- School of Physical Science and Technology, ShanghaiTech University, 393 Huaxiazhong Road, Shanghai, 200031, China
| | - Chao Zang
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang, 110016, China.
- School of Material Science and Engineering, University of Science and Technology of China, 72 Wenhua Road, Shenyang, 110016, China
| | - Bo Li
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang, 110016, China.
- School of Material Science and Engineering, University of Science and Technology of China, 72 Wenhua Road, Shenyang, 110016, China
| | - Song Qiu
- Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, 398 Ruoshui Road, Suzhou, 215123, China.
| | - Qing-Wen Li
- Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, 398 Ruoshui Road, Suzhou, 215123, China.
| | - Xin Yan
- College of Information Science and Engineering, Northeastern University, 3-11 Wenhua Road, Shenyang, 110819, China.
| | - Dong-Ming Sun
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang, 110016, China.
- School of Material Science and Engineering, University of Science and Technology of China, 72 Wenhua Road, Shenyang, 110016, China
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Li B, Zhu QB, Cui C, Liu C, Wang ZH, Feng S, Sun Y, Zhu HL, Su X, Zhao YM, Zhang HW, Yao J, Qiu S, Li QW, Wang XM, Wang XH, Cheng HM, Sun DM. Patterning of Wafer-Scale MXene Films for High-Performance Image Sensor Arrays. Adv Mater 2022; 34:e2201298. [PMID: 35226775 DOI: 10.1002/adma.202201298] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Indexed: 06/14/2023]
Abstract
As a rapidly growing family of 2D transition metal carbides and nitrides, MXenes are recognized as promising materials for the development of future electronics and optoelectronics. So far, the reported patterning methods for MXene films lack efficiency, resolution, and compatibility, resulting in limited device integration and performance. Here, a high-performance MXene image sensor array fabricated by a wafer-scale combination patterning method of an MXene film is reported. This method combines MXene centrifugation, spin-coating, photolithography, and dry-etching and is highly compatible with mainstream semiconductor processing, with a resolution up to 2 µm, which is at least 100 times higher than other large-area patterning methods reported previously. As a result, a high-density integrated array of 1024-pixel Ti3 C2 Tx /Si photodetectors with a detectivity of 7.73 × 1014 Jones and a light-dark current ratio (Ilight /Idark ) of 6.22 × 106 , which is the ultrahigh value among all reported MXene-based photodetectors, is fabricated. This patterning technique paves a way for large-scale high-performance MXetronics compatible with mainstream semiconductor processes.
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Affiliation(s)
- Bo Li
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang, 110016, China
- School of Material Science and Engineering, University of Science and Technology of China, 96 Jinzhai Road, Hefei, 230026, China
| | - Qian-Bing Zhu
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang, 110016, China
- School of Material Science and Engineering, University of Science and Technology of China, 96 Jinzhai Road, Hefei, 230026, China
| | - Cong Cui
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang, 110016, China
- School of Material Science and Engineering, University of Science and Technology of China, 96 Jinzhai Road, Hefei, 230026, China
| | - Chi Liu
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang, 110016, China
- School of Material Science and Engineering, University of Science and Technology of China, 96 Jinzhai Road, Hefei, 230026, China
| | - Zuo-Hua Wang
- National Engineering Research Center for Equipment and Technology of Cold Strip Rolling, College of Mechanical Engineering, Yanshan University, Qinhuangdao, 066004, China
| | - Shun Feng
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang, 110016, China
- School of Physical Science and Technology, ShanghaiTech University, 393 Huaxiazhong Road, Shanghai, 200031, China
| | - Yun Sun
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang, 110016, China
| | - Hong-Lei Zhu
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang, 110016, China
- School of Material Science and Engineering, University of Science and Technology of China, 96 Jinzhai Road, Hefei, 230026, China
| | - Xin Su
- National Laboratory of Solid State Microstructures, School of Physics, School of Electronic Science and Engineering, Collaborative Innovation Centre of Advanced Microstructures, Nanjing University, Nanjing, 210008, China
| | - Yi-Ming Zhao
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang, 110016, China
- School of Material Science and Engineering, University of Science and Technology of China, 96 Jinzhai Road, Hefei, 230026, China
| | - Hong-Wang Zhang
- National Engineering Research Center for Equipment and Technology of Cold Strip Rolling, College of Mechanical Engineering, Yanshan University, Qinhuangdao, 066004, China
| | - Jian Yao
- Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, 398 Ruoshui Road, Suzhou, 215123, China
| | - Song Qiu
- Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, 398 Ruoshui Road, Suzhou, 215123, China
| | - Qing-Wen Li
- Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, 398 Ruoshui Road, Suzhou, 215123, China
| | - Xiao-Mu Wang
- National Laboratory of Solid State Microstructures, School of Physics, School of Electronic Science and Engineering, Collaborative Innovation Centre of Advanced Microstructures, Nanjing University, Nanjing, 210008, China
| | - Xiao-Hui Wang
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang, 110016, China
- School of Material Science and Engineering, University of Science and Technology of China, 96 Jinzhai Road, Hefei, 230026, China
| | - Hui-Ming Cheng
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang, 110016, China
- School of Material Science and Engineering, University of Science and Technology of China, 96 Jinzhai Road, Hefei, 230026, China
- Institute of Technology for Carbon Neutrality, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, 1068 Xueyuan Avenue, Shenzhen, 518055, China
| | - Dong-Ming Sun
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang, 110016, China
- School of Material Science and Engineering, University of Science and Technology of China, 96 Jinzhai Road, Hefei, 230026, China
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Kuang BC, Hou SH, Zhan GJ, Wang MQ, Zhang JS, Sun KL, Wang ZH, Li QW, Gong NQ. [Effect of methyl eugenol on hypoxia/reoxygenation injury of human renal tubular epithelial cells and its mechanism]. Zhongguo Zhong Yao Za Zhi 2021; 46:6502-6510. [PMID: 34994143 DOI: 10.19540/j.cnki.cjcmm.20210918.402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
This study aimed to investigate the effect of methyl eugenol(ME) on hypoxia/reoxygenation(H/R)-induced injury of human renal tubular epithelial HK-2 cells and its mechanism. The viability of HK-2 cells cultured with different concentrations of ME and exposed to H/R was detected by cell counting kit-8(CCK-8) assay. The effect of ME on the morphology of HK-2 cells was observed under an inverted microscope. The content of intracellular reactive oxygen species in different groups was detected after 2',7'-dichlorodihydrofluorescein diacetate(DCFH-DA) fluorescence staining. Cell apoptosis was determined by flow cytometry. Changes in mitochondrial membrane potential were monitored by JC-1 dye. The concentrations of nuclear factor erythroid 2 related factor 2(Nrf2), heme oxygenase-1(HO-1), and nicotinamide adenine dinucleotide phosphatase oxidase 4(Nox4) were measured by Western blot, followed by the assay of Nrf2 concentration changes in cytoplasm and nucleus by confocal fluorescence staining. The results showed that when the concentration of ME was 0-40 μmol·L~(-1), the activity of HK-2 cells was not affected. Compared with the model group, ME enhanced the activity of HK-2 cells and the cell morphology was normal. As revealed by further experiments, ME inhibited the release of reactive oxygen species and the decline in mitochondrial membrane potential of HK-2 cells after H/R injury, promoted Nrf2/HO-1 expression and Nrf2 translocation to the nucleus, and down-regulated the expression of Nox4, thereby significantly reducing apoptosis. This protective effect of ME could be reversed by the specific Nrf2 inhibitor ML385. These findings have preliminarily proved that ME effectively protected HK-2 cells against H/R injury, which might be related to its promotion of Nrf2/HO-1 signaling pathway and inhibition of Nox4. Such exploration on the possible mechanism of ME in the treatment of renal ischemia-reperfusion injury(IRI) and protection of organ function from the perspective of antioxidant stress has provided reference for related research on the treatment of acute kidney injury with traditional Chinese medicine.
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Affiliation(s)
- Bai-Cheng Kuang
- Key Laboratory of Organ Transplantation, Chinese Academy of Medical Sciences, Key Laboratory of Organ Transplantation, National Health Commission of the People's Republic of China,Key Laboratory of Organ Transplantation, Ministry of Education, Institute of Organ Transplantation, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology Wuhan 430030,China
| | - Shuai-Heng Hou
- Key Laboratory of Organ Transplantation, Chinese Academy of Medical Sciences, Key Laboratory of Organ Transplantation, National Health Commission of the People's Republic of China,Key Laboratory of Organ Transplantation, Ministry of Education, Institute of Organ Transplantation, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology Wuhan 430030,China
| | - G Ji Zhan
- Key Laboratory of Organ Transplantation, Chinese Academy of Medical Sciences, Key Laboratory of Organ Transplantation, National Health Commission of the People's Republic of China,Key Laboratory of Organ Transplantation, Ministry of Education, Institute of Organ Transplantation, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology Wuhan 430030,China
| | - Meng-Qin Wang
- Key Laboratory of Organ Transplantation, Chinese Academy of Medical Sciences, Key Laboratory of Organ Transplantation, National Health Commission of the People's Republic of China,Key Laboratory of Organ Transplantation, Ministry of Education, Institute of Organ Transplantation, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology Wuhan 430030,China
| | - Jia-Si Zhang
- Key Laboratory of Organ Transplantation, Chinese Academy of Medical Sciences, Key Laboratory of Organ Transplantation, National Health Commission of the People's Republic of China,Key Laboratory of Organ Transplantation, Ministry of Education, Institute of Organ Transplantation, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology Wuhan 430030,China
| | - Kai-Lun Sun
- Key Laboratory of Organ Transplantation, Chinese Academy of Medical Sciences, Key Laboratory of Organ Transplantation, National Health Commission of the People's Republic of China,Key Laboratory of Organ Transplantation, Ministry of Education, Institute of Organ Transplantation, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology Wuhan 430030,China
| | - Zhi-Heng Wang
- Key Laboratory of Organ Transplantation, Chinese Academy of Medical Sciences, Key Laboratory of Organ Transplantation, National Health Commission of the People's Republic of China,Key Laboratory of Organ Transplantation, Ministry of Education, Institute of Organ Transplantation, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology Wuhan 430030,China
| | - Qing-Wen Li
- Key Laboratory of Organ Transplantation, Chinese Academy of Medical Sciences, Key Laboratory of Organ Transplantation, National Health Commission of the People's Republic of China,Key Laboratory of Organ Transplantation, Ministry of Education, Institute of Organ Transplantation, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology Wuhan 430030,China
| | - Nian-Qiao Gong
- Key Laboratory of Organ Transplantation, Chinese Academy of Medical Sciences, Key Laboratory of Organ Transplantation, National Health Commission of the People's Republic of China,Key Laboratory of Organ Transplantation, Ministry of Education, Institute of Organ Transplantation, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology Wuhan 430030,China
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Zhu QB, Li B, Yang DD, Liu C, Feng S, Chen ML, Sun Y, Tian YN, Su X, Wang XM, Qiu S, Li QW, Li XM, Zeng HB, Cheng HM, Sun DM. A flexible ultrasensitive optoelectronic sensor array for neuromorphic vision systems. Nat Commun 2021; 12:1798. [PMID: 33741964 DOI: 10.5281/zenodo.4540948] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Accepted: 02/25/2021] [Indexed: 05/23/2023] Open
Abstract
The challenges of developing neuromorphic vision systems inspired by the human eye come not only from how to recreate the flexibility, sophistication, and adaptability of animal systems, but also how to do so with computational efficiency and elegance. Similar to biological systems, these neuromorphic circuits integrate functions of image sensing, memory and processing into the device, and process continuous analog brightness signal in real-time. High-integration, flexibility and ultra-sensitivity are essential for practical artificial vision systems that attempt to emulate biological processing. Here, we present a flexible optoelectronic sensor array of 1024 pixels using a combination of carbon nanotubes and perovskite quantum dots as active materials for an efficient neuromorphic vision system. The device has an extraordinary sensitivity to light with a responsivity of 5.1 × 107 A/W and a specific detectivity of 2 × 1016 Jones, and demonstrates neuromorphic reinforcement learning by training the sensor array with a weak light pulse of 1 μW/cm2.
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Affiliation(s)
- Qian-Bing Zhu
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang, China
- School of Material Science and Engineering, University of Science and Technology of China, Hefei, China
| | - Bo Li
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang, China
- School of Material Science and Engineering, University of Science and Technology of China, Hefei, China
| | - Dan-Dan Yang
- College of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing, China
| | - Chi Liu
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang, China
| | - Shun Feng
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang, China
- School of Physical Science and Technology, ShanghaiTech University, Shanghai, China
| | - Mao-Lin Chen
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang, China
| | - Yun Sun
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang, China
| | - Ya-Nan Tian
- College of Information Science and Engineering, Northeastern University, Shenyang, China
| | - Xin Su
- School of Electronic Science and Engineering, Nanjing University, Nanjing, China
| | - Xiao-Mu Wang
- School of Electronic Science and Engineering, Nanjing University, Nanjing, China
| | - Song Qiu
- Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, China.
| | - Qing-Wen Li
- Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, China
| | - Xiao-Ming Li
- College of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing, China.
| | - Hai-Bo Zeng
- College of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing, China
| | - Hui-Ming Cheng
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang, China.
- School of Material Science and Engineering, University of Science and Technology of China, Hefei, China.
- Tsinghua-Berkeley Shenzhen Institute, Tsinghua University, Shenzhen, China.
| | - Dong-Ming Sun
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang, China.
- School of Material Science and Engineering, University of Science and Technology of China, Hefei, China.
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10
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Zhu QB, Li B, Yang DD, Liu C, Feng S, Chen ML, Sun Y, Tian YN, Su X, Wang XM, Qiu S, Li QW, Li XM, Zeng HB, Cheng HM, Sun DM. A flexible ultrasensitive optoelectronic sensor array for neuromorphic vision systems. Nat Commun 2021; 12:1798. [PMID: 33741964 PMCID: PMC7979753 DOI: 10.1038/s41467-021-22047-w] [Citation(s) in RCA: 78] [Impact Index Per Article: 26.0] [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: 10/30/2020] [Accepted: 02/25/2021] [Indexed: 11/21/2022] Open
Abstract
The challenges of developing neuromorphic vision systems inspired by the human eye come not only from how to recreate the flexibility, sophistication, and adaptability of animal systems, but also how to do so with computational efficiency and elegance. Similar to biological systems, these neuromorphic circuits integrate functions of image sensing, memory and processing into the device, and process continuous analog brightness signal in real-time. High-integration, flexibility and ultra-sensitivity are essential for practical artificial vision systems that attempt to emulate biological processing. Here, we present a flexible optoelectronic sensor array of 1024 pixels using a combination of carbon nanotubes and perovskite quantum dots as active materials for an efficient neuromorphic vision system. The device has an extraordinary sensitivity to light with a responsivity of 5.1 × 107 A/W and a specific detectivity of 2 × 1016 Jones, and demonstrates neuromorphic reinforcement learning by training the sensor array with a weak light pulse of 1 μW/cm2. To emulate nature biological processing, highly-integrated ultra-sensitive artificial neuromorphic system is highly desirable. Here, the authors report flexible sensor array of 1024 pixels using combination of carbon nanotubes and perovskite QDs as active matetials, achieving highly responsive device for reinforcement learning.
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Affiliation(s)
- Qian-Bing Zhu
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang, China.,School of Material Science and Engineering, University of Science and Technology of China, Hefei, China
| | - Bo Li
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang, China.,School of Material Science and Engineering, University of Science and Technology of China, Hefei, China
| | - Dan-Dan Yang
- College of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing, China
| | - Chi Liu
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang, China
| | - Shun Feng
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang, China.,School of Physical Science and Technology, ShanghaiTech University, Shanghai, China
| | - Mao-Lin Chen
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang, China
| | - Yun Sun
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang, China
| | - Ya-Nan Tian
- College of Information Science and Engineering, Northeastern University, Shenyang, China
| | - Xin Su
- School of Electronic Science and Engineering, Nanjing University, Nanjing, China
| | - Xiao-Mu Wang
- School of Electronic Science and Engineering, Nanjing University, Nanjing, China
| | - Song Qiu
- Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, China.
| | - Qing-Wen Li
- Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, China
| | - Xiao-Ming Li
- College of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing, China.
| | - Hai-Bo Zeng
- College of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing, China
| | - Hui-Ming Cheng
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang, China. .,School of Material Science and Engineering, University of Science and Technology of China, Hefei, China. .,Tsinghua-Berkeley Shenzhen Institute, Tsinghua University, Shenzhen, China.
| | - Dong-Ming Sun
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang, China. .,School of Material Science and Engineering, University of Science and Technology of China, Hefei, China.
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11
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Long JT, Fan HX, Zhou ZQ, Sun WY, Li QW, Wang Y, Ma M, Gao H, Zhi H. The major zeaxanthin dipalmitate derivatives from wolfberry. J Asian Nat Prod Res 2020; 22:746-753. [PMID: 31163996 DOI: 10.1080/10286020.2019.1621855] [Citation(s) in RCA: 8] [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] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Revised: 05/16/2019] [Accepted: 05/17/2019] [Indexed: 06/09/2023]
Abstract
Zeaxanthin dipalmitate (3) and two zeaxanthin dipalmitate derivatives, including one new compound (1), were obtained from wolfberry [the fruit of Lycium barbarum L. (Solanaceae)]. Their structures were unambiguously elucidated by spectroscopic analyses. Compound 2 is isolated from the genus Lycium for the first time, and its 1D/2D NMR data are firstly reported. All the compounds belong to carotenoids which are a kind of major bioactive constituents in wolfberry and are also responsible for wolfberry's red color.
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Affiliation(s)
- Jia-Tang Long
- School of Chinese Materia Medica, Guangzhou University of Chinese Medicine, Guangzhou 510006, China
| | - Hong-Xia Fan
- College of Traditional Chinese Medicine/Integrated Chinese and Western Medicine Postdoctoral Research Station, Jinan University, Guangzhou 510632, China
| | - Zheng-Qun Zhou
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy/Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, Jinan University, Guangzhou 510632, China
| | - Wan-Yang Sun
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy/Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, Jinan University, Guangzhou 510632, China
| | - Qing-Wen Li
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy/Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, Jinan University, Guangzhou 510632, China
| | - Ying Wang
- Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China
| | - Min Ma
- College of Traditional Chinese Medicine/Integrated Chinese and Western Medicine Postdoctoral Research Station, Jinan University, Guangzhou 510632, China
| | - Hao Gao
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy/Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, Jinan University, Guangzhou 510632, China
| | - Hui Zhi
- School of Chinese Materia Medica, Guangzhou University of Chinese Medicine, Guangzhou 510006, China
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12
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Zhuang JY, Zhang FF, Li QW, Chen YF. Intra-abdominal inflammatory pseudotumor-like follicular dendritic cell sarcoma associated with paraneoplastic pemphigus: A case report and review of the literature. World J Clin Cases 2020; 8:3097-3107. [PMID: 32775392 PMCID: PMC7385594 DOI: 10.12998/wjcc.v8.i14.3097] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Revised: 06/09/2020] [Accepted: 06/28/2020] [Indexed: 02/05/2023] Open
Abstract
BACKGROUD Follicular dendritic cell (FDC) sarcomas are rare neoplasms that occur predominantly in the lymph nodes. They can also occur extranodally. Extranodal FDC sarcomas most commonly present as solitary masses. Inflammatory pseudotumor (IPT)-like FDC sarcomas, a subcategory of FDC sarcomas, are rarer than other sarcoma subtypes. They are composed of spindle or ovoid neoplastic cells and exhibit an admixture of plasma cells and prominent lymphoplasmacytic infiltration. Paraneoplastic pemphigus (PNP), also known as paraneoplastic autoimmune multiorgan syndrome, is a rare autoimmune bullous disease that is associated with underlying neoplasms. PNP has a high mortality, and its early diagnosis is usually difficult.
CASE SUMMARY We describe a 27-year-old woman who presented with stomatitis, conjunctivitis, and skin blisters and erosions as her first symptoms of PNP with an intra-abdominal IPT-like FDC sarcoma. The patient underwent surgical tumor resection and received tapering oral corticosteroid treatment. She showed no recurrence at the 1-year follow-up.
CONCLUSION IPT-like FDC sarcomas are rare underlying neoplasms that have an uncommon association with PNP. PNP-associated FDC sarcomas predominantly occur in intra-abdominal sites and suggest a poor prognosis. Surgical resection is an essential and effective treatment for PNP and primary and recurrent FDC sarcomas.
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Affiliation(s)
- Jia-Yi Zhuang
- Department of Dermatology, Dermatology Hospital, Southern Medical University/Guangdong Provincial Dermatology Hospital, Guangzhou 510091, Guangdong Province, China
| | - Fang-Fei Zhang
- Department of Dermatology, Dermatology Hospital, Southern Medical University/Guangdong Provincial Dermatology Hospital, Guangzhou 510091, Guangdong Province, China
| | - Qing-Wen Li
- Department of Dermatology, Dermatology Hospital, Southern Medical University/Guangdong Provincial Dermatology Hospital, Guangzhou 510091, Guangdong Province, China
| | - Yong-Feng Chen
- Department of Dermatology, Dermatology Hospital, Southern Medical University/Guangdong Provincial Dermatology Hospital, Guangzhou 510091, Guangdong Province, China
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13
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Qu TY, Sun Y, Chen ML, Liu ZB, Zhu QB, Wang BW, Zhao TY, Liu C, Tan J, Qiu S, Li QW, Han Z, Wang W, Cheng HM, Sun DM. A Flexible Carbon Nanotube Sen-Memory Device. Adv Mater 2020; 32:e1907288. [PMID: 31977113 DOI: 10.1002/adma.201907288] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Revised: 12/25/2019] [Indexed: 05/23/2023]
Abstract
In a modern electronics system, charge-coupled devices and data storage devices are the two most indispensable components. Although there has been rapid and independent progress in their development during the last three decades, a cofunctionality of both sensing and memory at single-unit level is yet premature for flexible electronics. For wearable electronics that work in ultralow power conditions and involve strains, conventional sensing-and-memory systems suffer from low sensitivity and are not able to directly transform sensed information into sufficient memory. Here, a new transformative device is demonstrated, which is called "sen-memory", that exhibits the dual functionality of sensing and memory in a monolithic integrated circuit. The active channel of the device is formed by a carbon nanotube thin film and the floating gate is formed by a controllably oxidized aluminum nanoparticle array for electrical- and optical-programming. The device exhibits a high on-off current ratio of ≈106 , a long-term retention of ≈108 s, and durable flexibility at a bending strain of 0.4%. It is shown that the device senses a photogenerated pattern in seconds at zero bias and memorizes an image for a couple of years.
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Affiliation(s)
- Ting-Yu Qu
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang, 110016, China
| | - Yun Sun
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang, 110016, China
| | - Mao-Lin Chen
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang, 110016, China
- School of Material Science and Engineering, University of Science and Technology of China, 72 Wenhua Road, Shenyang, 110016, China
| | - Zhi-Bo Liu
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang, 110016, China
| | - Qian-Bing Zhu
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang, 110016, China
- School of Material Science and Engineering, University of Science and Technology of China, 72 Wenhua Road, Shenyang, 110016, China
| | - Bing-Wei Wang
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang, 110016, China
- School of Material Science and Engineering, University of Science and Technology of China, 72 Wenhua Road, Shenyang, 110016, China
| | - Tian-Yang Zhao
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang, 110016, China
- School of Material Science and Engineering, University of Science and Technology of China, 72 Wenhua Road, Shenyang, 110016, China
| | - Chi Liu
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang, 110016, China
| | - Jun Tan
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang, 110016, China
| | - Song Qiu
- Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, 398 Ruoshui Road, Suzhou, 215123, China
| | - Qing-Wen Li
- Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, 398 Ruoshui Road, Suzhou, 215123, China
| | - Zheng Han
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang, 110016, China
- School of Material Science and Engineering, University of Science and Technology of China, 72 Wenhua Road, Shenyang, 110016, China
| | - Wei Wang
- State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun, 130012, China
| | - Hui-Ming Cheng
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang, 110016, China
- School of Material Science and Engineering, University of Science and Technology of China, 72 Wenhua Road, Shenyang, 110016, China
- Shenzhen Geim Graphene Center, Tsinghua-Berkeley Shenzhen Institute, Tsinghua University, 1001 Xueyun Road, Shenzhen, 518055, China
| | - Dong-Ming Sun
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang, 110016, China
- School of Material Science and Engineering, University of Science and Technology of China, 72 Wenhua Road, Shenyang, 110016, China
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14
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Li QW, Zhang R, Zhou ZQ, Sun WY, Fan HX, Wang Y, Xiao J, So KF, Yao XS, Gao H. Phenylpropanoid glycosides from the fruit of Lycium barbarum L. and their bioactivity. Phytochemistry 2019; 164:60-66. [PMID: 31096077 DOI: 10.1016/j.phytochem.2019.04.017] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2019] [Revised: 04/05/2019] [Accepted: 04/25/2019] [Indexed: 06/09/2023]
Abstract
Fifteen phenylpropanoid glycosides, including six undescribed compounds were isolated from the fruit of Lycium barbarum L. (Solanaceae) (goji or wolfberry). Their structures were identified by detailed spectroscopic analyses. Seven known compounds were firstly isolated from the genus Lycium, in which the 1D and 2D NMR data of one compound were reported for the first time. Notably, two undescribed compounds were a pair of rare tautomeric glycoside anomers characterized by the presence of free anomeric hydroxy. Antioxidant and hypoglycemic activities of all these compounds were assessed using DPPH radical scavenging, oxygen radical absorbance capacity (ORAC), and α-glucosidase inhibitory assays, respectively. These compounds showed different levels of oxygen radical absorbance capacity, and some isolates exhibited potent antioxidant activity with greater ORAC values than the positive control (EGCG).
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Affiliation(s)
- Qing-Wen Li
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy / Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, Jinan University, Guangzhou 510632, People's Republic of China
| | - Rui Zhang
- Clinical Medicine Research Institute, The First Affiliated Hospital of Jinan University, Guangzhou 510632, People's Republic of China
| | - Zheng-Qun Zhou
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy / Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, Jinan University, Guangzhou 510632, People's Republic of China; Integrated Chinese and Western Medicine Postdoctoral Research Station, Jinan University, Guangzhou 510632, People's Republic of China.
| | - Wan-Yang Sun
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy / Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, Jinan University, Guangzhou 510632, People's Republic of China
| | - Hong-Xia Fan
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy / Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, Jinan University, Guangzhou 510632, People's Republic of China; Integrated Chinese and Western Medicine Postdoctoral Research Station, Jinan University, Guangzhou 510632, People's Republic of China
| | - Ying Wang
- Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, People's Republic of China
| | - Jia Xiao
- Clinical Medicine Research Institute, The First Affiliated Hospital of Jinan University, Guangzhou 510632, People's Republic of China
| | - Kwok-Fai So
- Guangdong Medical Key Laboratory of Brain Function and Diseases, GMH Institute of Central Nervous System Regeneration, Jinan University, Guangzhou, 510632, People's Republic of China
| | - Xin-Sheng Yao
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy / Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, Jinan University, Guangzhou 510632, People's Republic of China
| | - Hao Gao
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy / Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, Jinan University, Guangzhou 510632, People's Republic of China.
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15
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Zhao TY, Zhang DD, Qu TY, Fang LL, Zhu QB, Sun Y, Cai TH, Chen ML, Wang BW, Du JH, Ren WC, Yan X, Li QW, Qiu S, Sun DM. Flexible 64 × 64 Pixel AMOLED Displays Driven by Uniform Carbon Nanotube Thin-Film Transistors. ACS Appl Mater Interfaces 2019; 11:11699-11705. [PMID: 30839190 DOI: 10.1021/acsami.8b17909] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Carbon nanotube (CNT) thin-film transistors are expected to be promising for use in flexible electronics including flexible and transparent integrated circuits and in wearable chemical and physical sensors and for driving the circuits of flexible display panels. However, current devices based on CNT channels suffer from poor performance uniformity and low manufacturing yield; therefore, they are still far from being practical. This is usually caused by nonuniform deposition of the semiconducting CNTs and the rough surface of flexible substrates. Here, we report CNT thin-film transistors (TFTs) driving a flexible 64 × 64 pixel active matrix light-emitting diode display (AMOLED) by improving the formation of uniform CNT films and developing a new pretreatment technique for flexible substrates. The achieved AMOLED has uniform brightness and a high yield of 99.93% in its 4096 pixels. More than 8000 TFTs with high-purity semiconducting CNTs as the channel material show an average on-off current ratio of ∼107 and a carrier mobility of 16 cm2 V-1 s-1. The standard deviations of the on-state current and the carrier mobility are 4.1 and 6.5%, respectively. Our result shows that the panel driven by high-purity semiconducting CNTs is a promising strategy for the development of next-generation flexible, large-area displays.
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Affiliation(s)
- Tian-Yang Zhao
- College of Information Science and Engineering , Northeastern University , 3-11 Wenhua Road , Shenyang 110819 , China
| | - Ding-Dong Zhang
- Shenyang National Laboratory for Materials Science , Institute of Metal Research, Chinese Academy of Sciences , 72 Wenhua Road , Shenyang 110016 , China
- School of Material Science and Engineering , University of Science and Technology of China , 72 Wenhua Road , Shenyang 110016 , China
| | - Ting-Yu Qu
- Shenyang National Laboratory for Materials Science , Institute of Metal Research, Chinese Academy of Sciences , 72 Wenhua Road , Shenyang 110016 , China
| | - Lin-Lin Fang
- Wuhan China Star Optoelectronics Technology Co., Ltd. , 8 Zuoling Road , Wuhan 430078 , China
| | - Qian-Bing Zhu
- Shenyang National Laboratory for Materials Science , Institute of Metal Research, Chinese Academy of Sciences , 72 Wenhua Road , Shenyang 110016 , China
- School of Material Science and Engineering , University of Science and Technology of China , 72 Wenhua Road , Shenyang 110016 , China
| | - Yun Sun
- Shenyang National Laboratory for Materials Science , Institute of Metal Research, Chinese Academy of Sciences , 72 Wenhua Road , Shenyang 110016 , China
| | - Tian-Hong Cai
- College of Information Science and Engineering , Northeastern University , 3-11 Wenhua Road , Shenyang 110819 , China
| | - Mao-Lin Chen
- Shenyang National Laboratory for Materials Science , Institute of Metal Research, Chinese Academy of Sciences , 72 Wenhua Road , Shenyang 110016 , China
- School of Material Science and Engineering , University of Science and Technology of China , 72 Wenhua Road , Shenyang 110016 , China
| | - Bing-Wei Wang
- Shenyang National Laboratory for Materials Science , Institute of Metal Research, Chinese Academy of Sciences , 72 Wenhua Road , Shenyang 110016 , China
- School of Material Science and Engineering , University of Science and Technology of China , 72 Wenhua Road , Shenyang 110016 , China
| | - Jin-Hong Du
- Shenyang National Laboratory for Materials Science , Institute of Metal Research, Chinese Academy of Sciences , 72 Wenhua Road , Shenyang 110016 , China
- School of Material Science and Engineering , University of Science and Technology of China , 72 Wenhua Road , Shenyang 110016 , China
| | - Wen-Cai Ren
- Shenyang National Laboratory for Materials Science , Institute of Metal Research, Chinese Academy of Sciences , 72 Wenhua Road , Shenyang 110016 , China
- School of Material Science and Engineering , University of Science and Technology of China , 72 Wenhua Road , Shenyang 110016 , China
| | - Xin Yan
- College of Information Science and Engineering , Northeastern University , 3-11 Wenhua Road , Shenyang 110819 , China
| | - Qing-Wen Li
- Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences , 398 Ruoshui Road , Suzhou 215123 , China
| | - Song Qiu
- Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences , 398 Ruoshui Road , Suzhou 215123 , China
| | - Dong-Ming Sun
- College of Information Science and Engineering , Northeastern University , 3-11 Wenhua Road , Shenyang 110819 , China
- Shenyang National Laboratory for Materials Science , Institute of Metal Research, Chinese Academy of Sciences , 72 Wenhua Road , Shenyang 110016 , China
- School of Material Science and Engineering , University of Science and Technology of China , 72 Wenhua Road , Shenyang 110016 , China
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16
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Wang BW, Jiang S, Zhu QB, Sun Y, Luan J, Hou PX, Qiu S, Li QW, Liu C, Sun DM, Cheng HM. Continuous Fabrication of Meter-Scale Single-Wall Carbon Nanotube Films and their Use in Flexible and Transparent Integrated Circuits. Adv Mater 2018; 30:e1802057. [PMID: 29952030 DOI: 10.1002/adma.201802057] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2018] [Revised: 05/25/2018] [Indexed: 06/08/2023]
Abstract
Single-wall carbon nanotubes (SWCNTs), especially in the form of large-area and high-quality thin films, are a promising material for use in flexible and transparent electronics. Here, a continuous synthesis, deposition, and transfer technique is reported for the fabrication of meter-scale SWCNT thin films, which have an excellent optoelectrical performance including a low sheet resistance of 65 Ω/◽ with a transmittance of 90% at a wavelength of 550 nm. Using these SWCNT thin films, high-performance all-CNT thin-film transistors and integrated circuits are demonstrated, including 101-stage ring oscillators. The results pave the way for the future development of large-scale, flexible, and transparent electronics based on CNT thin films.
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Affiliation(s)
- Bing-Wei Wang
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang, 110016, P. R. China
- School of Material Science and Engineering, University of Science and Technology of China, 96 Jinzhai Road, Hefei, 230026, P. R. China
| | - Song Jiang
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang, 110016, P. R. China
- School of Physical Science and Technology, ShanghaiTech University, 393 Huaxiazhong Road, Shanghai, 200031, P. R. China
- State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, 865 Changning Road, Shanghai, 200050, P. R. China
- University of Chinese Academy of Sciences, 19 A Yuquan Road, Beijing, 100049, P. R. China
| | - Qian-Bing Zhu
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang, 110016, P. R. China
- School of Material Science and Engineering, University of Science and Technology of China, 96 Jinzhai Road, Hefei, 230026, P. R. China
| | - Yun Sun
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang, 110016, P. R. China
| | - Jian Luan
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang, 110016, P. R. China
| | - Peng-Xiang Hou
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang, 110016, P. R. China
| | - Song Qiu
- Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, 398 Ruoshui Road, Suzhou, 215123, P. R. China
| | - Qing-Wen Li
- Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, 398 Ruoshui Road, Suzhou, 215123, P. R. China
| | - Chang Liu
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang, 110016, P. R. China
- School of Material Science and Engineering, University of Science and Technology of China, 96 Jinzhai Road, Hefei, 230026, P. R. China
| | - Dong-Ming Sun
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang, 110016, P. R. China
- School of Material Science and Engineering, University of Science and Technology of China, 96 Jinzhai Road, Hefei, 230026, P. R. China
| | - Hui-Ming Cheng
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang, 110016, P. R. China
- School of Material Science and Engineering, University of Science and Technology of China, 96 Jinzhai Road, Hefei, 230026, P. R. China
- Tsinghua-Berkeley Shenzhen Institute, Tsinghua University, 1001 Xueyuan Road, Shenzhen, 518055, P. R. China
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Zhang ZY, Lu HH, Li QW, Lin P. [Occurrence of central sleep apnea after treatment during split-night sleeping monitoring: a case report]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2018; 53:460-461. [PMID: 29902856 DOI: 10.3760/cma.j.issn.1673-0860.2018.06.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Z Y Zhang
- Department of Otorhinolaryngology Head and Neck Surgery, Tianjin First Center Hospital, Tianjin 300192, China
| | - H H Lu
- Department of Otorhinolaryngology Head and Neck Surgery, Tianjin First Center Hospital, Tianjin 300192, China
| | - Q W Li
- Department of Otorhinolaryngology Head and Neck Surgery, Tianjin First Center Hospital, Tianjin 300192, China
| | - P Lin
- Department of Otorhinolaryngology Head and Neck Surgery, Tianjin First Center Hospital, Tianjin 300192, China
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18
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Zhou Q, Zuo MH, Li QW, Tian YT, Xie YB, Wang YB, Yang GY, Ye YJ, Guo P, Liu JP, Liu ZL, An C, Zhou T, Tian Z, Liu CB, Hu Y, Chi XY, Shen Y, Xia Y, Hu KW. [Efficacy of Weitan Waifu patch on the postsurgical gastroparesis syndrome of gastrointestinal cancer: a multi-center trial]. Zhonghua Zhong Liu Za Zhi 2018; 39:919-925. [PMID: 29262509 DOI: 10.3760/cma.j.issn.0253-3766.2017.12.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the safety and efficacy of the Weitan Waifu patch on the postsurgical gastroparesis syndrome (PGS) of gastrointestinal cancer. Methods: The multi-center, double-blind, randomized controlled trial was conducted with superiority design. Patients with PGS of gastrointestinal cancer diagnosed in 4 AAA hospitals and the abdominal symptom manifested as cold syndrome by Chinese local syndrome differentiation were recruited. These patients were randomly divided into two groups according to 1∶1 proportion. Placebo or Weitan Waifu patch was applied in control group or intervention group, respectively, based on the basic treatments, including nutrition support, gastrointestinal decompression, promoting gastric dynamics medicine.Two acupuncture points (Zhongwan and Shenque) were stuck with placebo in control group or patch in treatment group. The intervention course was 14 days or reached the effective standard. Results: From July 15, 2013 to Jun 3, 2015, 128 participants were recruited and 120 eligible cases were included in the full analysis set (FAS), and 60 cases in each group. 88 cases were included in the per-protocol set (PPS), including 45 cases in the treatment group and 43 cases in the control group. In the FAS, the clinical effective rate in the treatment group was 68.3%, significantly superior than 41.7% of the control group (P=0.003). The medium time of effective therapy in the treatment group was 8 days, significantly shorter than 10 days in the control group (P=0.017). In the FAS, 3 adverse events occurred in the treatment group, including mild to moderate decrustation, pruritus and nausea. The incidence rate of adverse events was 5.0% (3/60) and these symptoms were spontaneously remitted after drug withdrawal. No severe adverse events were observed in the control group. There was no significant difference between these two groups (P=0.244). Conclusion: Weitan Waifu patch is a safely and effectively therapeutic method for patients with PGS (cold syndrome) of gastroenterological cancer. Trial registration: International Standard Randomized Controlled Trial Number Register, ISRCTN18291857.
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Affiliation(s)
- Q Zhou
- Department of Oncology, Dongfang Hospital, Beijing University of Chinese Medicine, Beijing 100078, China
| | - M H Zuo
- Department of Oncology, Dongfang Hospital, Beijing University of Chinese Medicine, Beijing 100078, China
| | - Q W Li
- Department of Oncology, Dongfang Hospital, Beijing University of Chinese Medicine, Beijing 100078, China
| | - Y T Tian
- Department of Pancreatic and Gastric Surgery, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Y B Xie
- Department of Pancreatic and Gastric Surgery, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Y B Wang
- Department of Hepatobiliary Surgery, Chinese PLA General Hospital, Beijing 100853, China
| | - G Y Yang
- Department of Hepatobiliary Surgery, Chinese PLA General Hospital, Beijing 100853, China
| | - Y J Ye
- Department of General Surgery, Peking University People's Hospital, Beijing 100044, China
| | - P Guo
- Department of General Surgery, Peking University People's Hospital, Beijing 100044, China
| | - J P Liu
- Evidence-Based Medicine Center, Beijing University of Chinese Medicine, Beijing 100029, Chinak
| | - Z L Liu
- Evidence-Based Medicine Center, Beijing University of Chinese Medicine, Beijing 100029, Chinak
| | - C An
- Department of Oncology, Dongfang Hospital, Beijing University of Chinese Medicine, Beijing 100078, China
| | - T Zhou
- Department of Oncology, Dongfang Hospital, Beijing University of Chinese Medicine, Beijing 100078, China
| | - Z Tian
- Department of Oncology, Dongfang Hospital, Beijing University of Chinese Medicine, Beijing 100078, China
| | - C B Liu
- Department of Oncology, Dongfang Hospital, Beijing University of Chinese Medicine, Beijing 100078, China
| | - Y Hu
- Department of Oncology, Dongfang Hospital, Beijing University of Chinese Medicine, Beijing 100078, China
| | - X Y Chi
- Department of Oncology, Dongfang Hospital, Beijing University of Chinese Medicine, Beijing 100078, China
| | - Y Shen
- Department of Oncology, Dongfang Hospital, Beijing University of Chinese Medicine, Beijing 100078, China
| | - Y Xia
- Department of Oncology, Dongfang Hospital, Beijing University of Chinese Medicine, Beijing 100078, China
| | - K W Hu
- Department of Oncology, Dongfang Hospital, Beijing University of Chinese Medicine, Beijing 100078, China
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19
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Zhang ZY, Lu HH, Li QW, Lin P. [Obstructive sleep apnea-hypopnea syndrome complicated with obesity hypoventilation syndrome: a case report]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2017; 52:859-861. [PMID: 29141301 DOI: 10.3760/cma.j.issn.1673-0860.2017.11.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Z Y Zhang
- Department of Otorhinolaryngology Head and Neck Surgery, Tianjin First Center Hospital, Tianjin 300192, China
| | - H H Lu
- Department of Otorhinolaryngology Head and Neck Surgery, Tianjin First Center Hospital, Tianjin 300192, China
| | - Q W Li
- Department of Otorhinolaryngology Head and Neck Surgery, Tianjin First Center Hospital, Tianjin 300192, China
| | - P Lin
- Department of Otorhinolaryngology Head and Neck Surgery, Tianjin First Center Hospital, Tianjin 300192, China
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20
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Zhou Y, Zhang S, Li K, Li QW, Zhou FZ, Li ZY, Ma H, Dong XR, Liu L, Wu G, Meng R. [The CK2 inhibitor quninalizarin enhances the anti-proliferative effect of icotinib on EGFR-TKIs-resistant cell lines and its underlying mechanisms]. Zhonghua Zhong Liu Za Zhi 2016; 38:100-4. [PMID: 26899328 DOI: 10.3760/cma.j.issn.0253-3766.2016.02.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE To explore whether quninalizarin, an specific inhibitor of protein kinase CK2, could sensitize icotinib in EGFR-TKIs (epithelial growth factor receptor-tyrosine kinase inhibitor)-resistant cell lines and uncover the underlying mechanisms. METHODS MTT assay was performed to evaluate the inhibitory effect of quninalizarin, icotinib or the combination of both on cell proliferation in several lung adenocarcinoma cell lines. Western blot assay was used to assess if combined inhibition of EGFR and protein kinase CK2 by icotinib and quninalizarin, exerts effect on the expression and phosphorylation of major proteins of EGFR signaling pathways. RESULTS The IC50 of HCC827, H1650, H1975 and A549 cells for icotinib were (8.07±2.00)μmol/L, (66.01±6.64)μmol/L, (265.60±9.47)μmol/L and (87.88±6.8)μmol/L, respectively, indicating that HCC827 cells are sensitive to icotinib, and the H1650, H1975 and A549 cells are relatively resistant to icotinib. When treated with both quninalizarin and icotinib in the concentration of 50 μmol/L, the viability of H1650, H1975 and A549 cells was (40.64±3.73)%, (65.74±3.27)% and (44.96±0.48)%, respectively, significantly lower than that of H1650, H1975 and A549 cells treated with 50 μmol/L icotinib alone (55.05±1.22)%, (71.98±1.60)% and (61.74±6.18)%, respectively (P<0.01 for all). When treated with both 100 μmol/L quninalizarin and 100 μmol/L icotinib, the viability of H1650, H1975 and A549 ells were (23.35±0.81)%, (55.70±1.03)%, (33.42±1.33)%, respectively, significantly lower than the viability of H1650, H1975 and A549 cells treated with 100 μmol/L icotinib alone (40.57±2.65)%, (62.40±2.05)% and (44.97±8.20)%, respectively, (P<0.01 for all). The two-way ANOVA analysis showed that compared with the viability of EGFR-TKIs-resistant cells (H1650, H1975, A549) treated with 50 μmol/L and 100 μmol/L icotinib alone, the viability of cells treated with icotinib and quinalizarin were significantly suppressed, and the differences were statistically significant (P<0.01). In addition, the phosphorylation form of Akt and ERK (namely p-Akt and p-ERK) were significantly down-regulated by treating with quninalizarin and icotinib together in the H1650 cells while the expression of Akt and ERK changed little. CONCLUSIONS Quinalizarin, as a specific CK2 inhibitor, may overcome icotinib resistance by inhibiting proliferation mediated by Akt and ERK in human lung adenocarcinoma cell lines, and enhances the suppressive effect of icotinib on the proliferation of EGFR-TKIs-resistant human lung adenocarcinoma cells.
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Affiliation(s)
- Y Zhou
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430023, China
| | - S Zhang
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430023, China
| | - K Li
- Department of Pharmacy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430023, China
| | - Q W Li
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430023, China
| | - F Z Zhou
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430023, China
| | - Z Y Li
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430023, China
| | - H Ma
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430023, China
| | - X R Dong
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430023, China
| | - L Liu
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430023, China
| | - G Wu
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430023, China
| | - R Meng
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430023, China
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Li QW, Zhou T, Wang F, Jiang M, Liu CB, Zhang KR, Zhou Q, Tian Z, Hu KW. MicroRNA-215 functions as a tumor suppressor and directly targets ZEB2 in human pancreatic cancer. Genet Mol Res 2015; 14:16133-45. [PMID: 26662405 DOI: 10.4238/2015.december.8.2] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
It has been shown that microRNA-215 (miR-215) is dysregulated in several human malignancies, and this correlates with tumor progression. However, its expression and function in pancreatic cancer is still unclear. The aim of this study was to explore the effects of miR-215 on pancreatic cancer formation and progression. Using quantitative RT-PCR, we detected miR-215 expression in pancreatic cancer cell lines and primary tumor tissues. The association of miR-215 expression with clinicopathological factors and prognosis was also analyzed. We then observed the effects of miR-215 on the biological behavior of pancreatic cancer cells. Lastly, the potential regulatory function of miR-215 on ZEB2 expression was investigated. miR-215 expression levels were significantly downregulated in pancreatic cancer samples and cell lines. Decreased miR-215 expression was significantly associated with large tumor size, advanced TNM stage, lymph node metastasis, vessel invasion, and lower overall survival. Multivariate regression analysis corroborated that downregulation of miR-215 was an independent unfavorable prognostic factor. Overexpression of miR-215 inhibited pancreatic cancer cell proliferation, invasion, and migration; promoted cell apoptosis in vitro; and suppressed tumorigenicity in vivo. Further, ZEB2 was confirmed as a direct target of miR-215 by using a luciferase reporter assay. These findings indicate that miR-215 may act as a tumor suppressor in pancreatic cancer cells, and could serve as a novel therapeutic target for miR-based therapy.
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Affiliation(s)
- Q W Li
- Department of Oncology, Dongfang Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - T Zhou
- Department of Oncology, Dongfang Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - F Wang
- Department of Oncology, Dongfang Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - M Jiang
- Department of Oncology, Dongfang Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - C B Liu
- Department of Oncology, Dongfang Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - K R Zhang
- Department of Oncology, Dongfang Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Q Zhou
- Department of Oncology, Dongfang Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Z Tian
- Department of Oncology, Dongfang Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - K W Hu
- Department of Oncology, Dongfang Hospital, Beijing University of Chinese Medicine, Beijing, China
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Abstract
Forkhead box protein O1 (FOXO1) is an important transcriptional regulator of cell proliferation, and is considered essential for tumor growth and progression. However, the function of FOXO1 in human cervical cancer remains unclear. In this study, we investigated the role of FOXO1 in cervical cancer. Our results showed that FOXO1 expression was lower in cervical cancer than in cervical intraepithelial neoplasia and normal cervix by immunohistochemical analysis (P < 0.05). The level of FOXO1 in high-grade lesions was significantly lower than in low-grade lesion (P < 0.05), indicating that deficient expression of FOXO1 is involved in tumor progression and significantly associated with late-stage tumors (P < 0.05), which was further supported by clinicopathological, real-time polymerase chain reaction, and Western blotting analysis. Moreover, we confirmed that the overexpression of FOXO1 remarkably repressed cell growth and blocked cell proliferation, accompanied by cell-cycle arrest in the G2/M phase and upregulation of caspases-3 and -9 gene expression. Collectively, our data suggest that FOXO1 plays a vital role in inhibiting cervical cancer development by inducing cell-cycle arrest and apoptosis. FOXO1 expression is a favorable prognostic factor for human cervical cancer.
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Affiliation(s)
- B Zhang
- College of Animal Science and Technology, Northwest A & F University, Yangling, Shaanxi, China
| | - L S Gui
- College of Animal Science and Technology, Northwest A & F University, Yangling, Shaanxi, China
| | - X L Zhao
- College of Basic Medical Sciences, Jiamusi University, Jiamusi, Heilongjiang, China
| | - L L Zhu
- College of Basic Medical Sciences, Jiamusi University, Jiamusi, Heilongjiang, China
| | - Q W Li
- College of Animal Science and Technology, Northwest A & F University, Yangling, Shaanxi, China
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He XH, Li QW, Wang YL, Zhang ZZ, Ke JJ, Yan XT, Chen K. Transduced PEP-1-heme oxygenase-1 fusion protein reduces remote organ injury induced by intestinal ischemia/reperfusion. Med Sci Monit 2015; 21:1057-65. [PMID: 25863938 PMCID: PMC4404748 DOI: 10.12659/msm.893924] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Background A fusion protein composed of heme oxygenase-1 (HO-1) and cell-penetrating peptide PEP-1 has been shown to reduce local intestinal injury after intestinal ischemia/reperfusion (I/R). In this study, we investigated the effects of PEP-1-HO-1 fusion protein on remote organ injury induced by intestinal I/R in rats. Material/methods We randomly assigned 24 male Sprague-Dawley rats to 3 groups: Sham, I/R, and I/R plus PEP-1-HO-1 treatment (HO). The model of intestinal I/R was established by occluding the superior mesenteric artery for 45 min followed by 120-min reperfusion. In HO group, PEP-1-HO-1 was administered intravenously 30 min before ischemia, while animals in the Sham and I/R groups received the equal volume of physiological saline. At the end of the experiment, lung, liver, and blood samples were collected and analyzed. Results Malondialdehyde levels and histological injury scores were increased, and superoxide dismutase activities were decreased in the lung and liver tissues in the I/R group compared with the Sham group (P<0.05). Serum levels of alanine aminotransferase, aspartate aminotransferase, tumor necrosis factor-α, interleukin-6, and lung tissue wet weight to dry weight ratio were increased in the I/R group compared with the Sham group (P<0.05). NF-κB expression in intestinal tissues was significantly higher in the I/R group than in the Sham group. These changes were significantly reversed by treatment with PEP-1-HO-1. Conclusions This study demonstrates that administration of PEP-1-HO-1 has a protective role against lung and liver injury after intestinal I/R, attributable to the reduction of released proinflammatory cytokines regulated by NF-κB.
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Affiliation(s)
- Xiang-Hu He
- Department of Anesthesiology, Zhongnan Hospital, Wuhan University, Wuhan, Hubei, China (mainland)
| | - Qing-Wen Li
- Department of Anesthesiology, Zhongnan Hospital, Wuhan University, Wuhan, Hubei, China (mainland)
| | - Yan-Lin Wang
- Department of Anesthesiology, Zhongnan Hospital, Wuhan University, Wuhan, Hubei, China (mainland)
| | - Zong-Ze Zhang
- Department of Anesthesiology, Zhongnan Hospital, Wuhan University, Wuhan, Hubei, China (mainland)
| | - Jian-Juan Ke
- Department of Anesthesiology, Zhongnan Hospital, Wuhan University, Wuhan, Hubei, China (mainland)
| | - Xue-Tao Yan
- Department of Anesthesiology, Shenzhen Boan Maternity and Child Health Hospital, Shenzhen, Guangdong, China (mainland)
| | - Kai Chen
- Department of Anesthesiology, Zhongnan Hospital, Wuhan University, Wuhan, Hubei, China (mainland)
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Wang M, Chen HY, Xing YJ, Wei HX, Li Q, Chen MH, Li QW, Xuan YM. Enhancing Thermal Conductive Performance of Vertically Aligned Carbon Nanotube Array Composite by Pre-Annealing Treatment. J Nanosci Nanotechnol 2015; 15:3212-3217. [PMID: 26353565 DOI: 10.1166/jnn.2015.9675] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Vertically aligned carbon nanotube (VACNT) array/polymer composite has already been recognized as a promising candidate for advanced thermal pad in thermal management of high-power electronic devices. However, the thermal conductive performance of this composite was limited by the quality of CNTs arrays. In this study, pre-annealing treatment was used to purify CNT arrays and improve thermal conductive performance of VACNT arrays/silicone composite. The thermal conductivity of the composite was enhanced by 34.52% and the thermal interface resistance was also reduced by 65.94% at a pre-annealing temperature of 490 °C for 5 min. The annealing process could remove some amorphous carbon and open the tips of CNTs. As a result, the interfacial compatibility in composite between carbon nanotube and polymer matrix was improved. The cyclic compression and tension performance of VACNT/S160 composite was investigated for further application.
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Xue S, Li QW, Che JP, Guo Y, Yang FQ, Zheng JH. Decreased expression of long non-coding RNA NBAT-1 is associated with poor prognosis in patients with clear cell renal cell carcinoma. Int J Clin Exp Pathol 2015; 8:3765-3774. [PMID: 26097558 PMCID: PMC4466945] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 01/19/2015] [Accepted: 03/20/2015] [Indexed: 06/04/2023]
Abstract
OBJECTIVE accumulating evidence suggest that long non-coding RNAs (lncRNAs) may play important roles in human cancers. LncRNA neuroblastoma associated transcript-1 (NBAT-1) was initially identified to be involved in the progression of neuroblastoma. However, there is no report about the role of NBAT-1 in clear cell renal cell carcinoma (ccRCC). The purpose of this study is to investigate the clinical significant of NBAT-1 in ccRCC. METHODS the expression pattern of NBAT-1 in ccRCC patients and renal cancer cell lines was detected by using quantitative real-time PCR (qRT-PCR), and its correlation with clinicopathologic features and prognosis of patients with ccRCC was assessed by Kaplan-Meier method and Cox proportional hazards model, respectively. Small interfering RNA (siRNA) was transfected into 786-O and ACHN cells to determine the effect of NBAT-1 knockdown on renal cancer cells. RESULT NBAT-1 expression is significantly decreased in ccRCC tissues and renal cancer cells compared with adjacent normal tissues and normal human proximal tubule epithelial cell line HK-2, and its low level is associated with advanced features and poor prognosis. Also, multivariate analysis identified NBAT-1 expression as an independent prognostic factor for ccRCC. In vitro assays indicated that knockdown of NBAT-1 expression increased renal cancer cell proliferation, migration and invasion. CONCLUSIONS NBAT-1 is a novel molecular correlated with ccRCC progression; and it may represent a prognostic biomarker and therapeutic target in renal cancer diagnosis and treatment.
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Affiliation(s)
- Sheng Xue
- Department of Urology, Shanghai Tenth People’s Hospital, Nanjing Medical UniversityNanjing, China
- Department of Urology, The First Affiliated Hospital of Bengbu Medical College BengbuAnhui, China
| | - Qing-Wen Li
- Department of Urology, The First Affiliated Hospital of Bengbu Medical College BengbuAnhui, China
| | - Jian-Ping Che
- Department of Urology, Shanghai Tenth People’s Hospital, Tongji UniversityShanghai, China
| | - Yong Guo
- Department of Urology, Shanghai Tenth People’s Hospital, Tongji UniversityShanghai, China
| | - Feng-Qiang Yang
- Department of Urology, Shanghai Tenth People’s Hospital, Tongji UniversityShanghai, China
| | - Jun-Hua Zheng
- Department of Urology, Shanghai Tenth People’s Hospital, Nanjing Medical UniversityNanjing, China
- Department of Urology, Shanghai Tenth People’s Hospital, Tongji UniversityShanghai, China
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Fan LN, Deng HH, Luo QW, He HY, Li Y, Wang QN, Huang ZX, Wu JT, Li QW, Liu SM, Qi YW. Genetic diversity of Saccharum spontaneum from geographical regions of China assessed by simple sequence repeats. Genet Mol Res 2013; 12:5916-25. [PMID: 24338385 DOI: 10.4238/2013.november.26.1] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Saccharum spontaneum is the most variable wild relative of sugarcane with potential for use in sugarcane improvement programs. In order to help preserve and exploit this species, 152 accessions from eight major geographical regions in China, including Hainan, Guangdong, Guangxi, Yunnan, Sichuan, Guizhou, Fujian, and Jiangxi provinces, were investigated by analyzing 20 simple sequence repeats (SSRs), including 11 genomic SSRs (gSSRs) and nine SSRs developed from expressed sequence tags (EST-SSRs). A total of 454 alleles were generated by the 20 SSRs, with 295 and 159 alleles detected by gSSRs and EST-SSRs respectively. The Mantel test showed significant correlation between genetic matrixes among the studied accessions revealed by gSSRs versus EST-SSRs, although the average polymorphism of EST-SSRs (17.7) was much lower than that of gSSRs (26.8). Among the eight provinces, collections from Guizhou were the most diverse and those from Guangdong were the most distinct. Clustering analysis and principal component analysis accordantly classified the accessions into four groups, which were "Southwest group", "Hainan group", "Guangdong group", and "Guangxi group", based on the geographical origin of the major accessions in each group, demonstrating that geographical factors play an important role in the pattern of genetic structure of Chinese S. spontaneum. As two (Guizhou and Yunnan) of the three provinces with highest genetic diversity are located in southwest China, we concluded that southwest China is the region with the highest genetic diversity of S. spontaneum.
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Affiliation(s)
- L N Fan
- Guangdong Key Laboratory of Sugarcane Improvement and Biorefinery, Guangzhou Sugarcane Industry Research Institute, Guangzhou, China
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Shi J, Xu P, Zhong ML, Gong YX, Bai YF, Yu WJ, Li QW, Jin H, Zhu SN. Heralded generation of multipartite entanglement for one photon by using a single two-dimensional nonlinear photonic crystal. Opt Express 2013; 21:7875-7881. [PMID: 23571878 DOI: 10.1364/oe.21.007875] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
We propose a compact scheme for the heralded generation of single-photon multipartite entanglement by using a single two-dimensional nonlinear photonic crystal. Studies have shown that by appropriate structure design, the single-photon entanglement shared among three spatially distinct optical modes can be generated through three concurrent spontaneous parametric down-conversion processes by using the other photon in an identical spatial mode as a trigger. Furthermore, we analyze the entanglement of such heralded single-photon tripartite W-type state theoretically. This method can be expanded for the heralded single-photon N-partite entanglement generation. This compact and stable quantum light source may act as a key ingredient in quantum information science.
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Affiliation(s)
- J Shi
- National Laboratory of Solid State Microstructures, School of Physics, Nanjing University, Nanjing 210093, China
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Li TS, Chen C, Gao Y, Li QW. Cloning and characterization of A cDNA encoding prohibitin1 from Lampetra japonica and its expression analysis. Cell Mol Biol (Noisy-le-grand) 2012; 58 Suppl:OL1791-OL1796. [PMID: 23153391] [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] [Received: 08/08/2012] [Accepted: 10/29/2012] [Indexed: 06/01/2023]
Abstract
To investigate that prohibitin is probably concerned in B--lymphocyte--like cells mediated signal pathways in Lamprey, a necessary and fundamental plan is firstly conducted. A full--length cDNA encoding the prohibitin1 protein was cloned from Lampetra japonica by EST sequence analysis in L. japonica leukocyte cDNA library conducted by our laboratory. Prohibitin1 contains a 828 bp open reading frame, encoded 275 amino acids residues, and molecular weight is 29.9517 KD, isoelectric point is 6.93, consists of 31 negatively charged amino acids residues (Asp+Glu) and 21 positively charged ones (Arg+Lys). The Prohibitin1 gene sequence from L. japonica is 71% identical to the ones of other 24 eukaryotic species, which shows the putative prohibitin1 gene is highly conserved. Western blotting analysis results showed the recombinant proteins were the target proteins in prokaryote. Real--time quantitative polymerase chain reaction analysis indicated that the expression of the prohibitin1 gene is significantly up--regulated in leukocyte, heart and gill of L. japonica by LPS stress treatment. In conclusion, we have cloned and identified the full--length cDNA of Prohibitin1 in L. japonica and found that it was related to adaptive immune response in lamprey for the first time.
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Affiliation(s)
- T S Li
- Life Science School of Liaoning Normal University, Dalian 116029, PR China
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Zu M, Lu W, Li QW, Zhu Y, Wang G, Chou TW. Characterization of carbon nanotube fiber compressive properties using tensile recoil measurement. ACS Nano 2012; 6:4288-4297. [PMID: 22494330 DOI: 10.1021/nn300857d] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
The tensile properties of carbon nanotube (CNT) fibers have been widely studied. However, the knowledge of their compressive properties is still lacking. In this work, the compressive properties of both pure CNT fibers and epoxy infiltrated CNT fibers were studied using the tensile recoil measurement. The compressive strengths were obtained as 416 and 573 MPa for pure CNT fibers and CNT-epoxy composite fibers, respectively. In addition, microscopic analysis of the fiber surface morphologies revealed that the principal recoil compressive failure mode of pure CNT fiber was kinking, while the CNT-epoxy composite fibers exhibited a failure mode in bending with combined tensile and compressive failure morphologies. The effect of resin infiltration on CNT fiber compressive properties, including the compressive strength and the deformation mode, is discussed. This work expands the knowledge base of the overall mechanical properties of CNT fibers, which are essential for their application in multifunctional composites.
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Affiliation(s)
- Mei Zu
- School of Materials Science and Engineering, Tongji University, Shanghai 201804, China
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Zhao ZG, Yao ZJ, Zhang J, Zhu R, Jin Y, Li QW. Rational design of galvanically replaced Pt-anchored electrospun WO3 nanofibers as efficient electrode materials for methanol oxidation. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c2jm32769d] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Tan JZ, Li QW, Nan YY. [Effects of salvianolic acid B preconditioning endothelial progenitor cells on expressions of myocardial genes in bone mesenchymal stem cells at the early cell differentiation stage of rats]. Zhongguo Zhong Xi Yi Jie He Za Zhi 2009; 29:529-532. [PMID: 19702086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
OBJECTIVE To investigate the effects of Salvianolic acid B preconditioned endothelial progenitor cells (EPCs) on the Nkx2.5 and GATA-4 gene expressions at the early stage of cell differentiation of bone mesenchymal stem cells (BMSc) transplanted into infarcted myocardium, in order to find out the best synergism for co-transplantation of the two kinds of cells. METHODS BMSc and EPCs of rats were isolated and cultured, and rats were modeled into acute myocardial infarction (AMI) by left coronary artery ligation. Then the EPCs preconditioned with different concentrations of Salvianolic acid B and BMSc or DMEM medium were implanted into heart ischemia area. Expressions of Nkx2.5 and GATA-4 mRNA expressions in myocardium were detected by Real-time RT-PCR 4 weeks later. RESULTS Compared with those in the non-implanted model rats' myocardium, the gene expression of Nkx2.5 and GATA-4 mRNA were significantly higher in all the transplantation receptive groups, comparisons between the implanted groups showed that the highest value of expressions (2. 654 +/- 0.606 of Nkx2.5 and 1.573 +/- 0.372 of GATA-4) displayed in the group contained more EPCs, for 8-fold to BMSc in volume. CONCLUSION BMSc can differentiate into cardiac muscle like cells, and condition of their differentiation is related with the degree of the internal environment improved.
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Affiliation(s)
- Jun-Zhen Tan
- College of Basic Medicine, Tianjin University of Traditional Chiese Medicine, Tianjin
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Peng YF, Cheng Y, Wang GY, Wang SQ, Jia C, Yang BH, Zhu R, Jian SC, Li QW, Geng DW. Clinical application of a new device for minimally invasive circumcision. Asian J Androl 2008; 10:447-54. [PMID: 18385906 DOI: 10.1111/j.1745-7262.2008.00411.x] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
AIM To study the clinical effects of a disposable circumcision device in treatment of male patients of different ages with either phimosis or excess foreskin. METHODS One thousand two hundred patients between the age of 5 and 95 years underwent circumcision using this procedure in the 2-year period between October 2005 and September 2007. Of these cases, 904 had excess foreskin and 296 were cases of phimosis. RESULTS In 96.33% of the cases the incision healed, leaving a minimal amount of the inner foreskin with no scarring and producing good cosmetic results. There were no incidents of device dislocation or damage to the frenulum. The average operative time was 2.5 min for excess foreskin, and 3.5 min for phimosis. During the 7 days of wearing the device, mild to moderate edema occurred in 10.08% of cases with excess foreskin and in 2.58% of those with phimosis. Edema in the frenulum was seen in 1.67% of patients, and only 0.67% had an infection of the incision. A total of 86.25% of patients reported pain due to penile erection. After removal of the device, 0.58% of the cases had minimal bleeding around the incision, and 2.42% had wound dehiscence. CONCLUSION The new device can be applied to an overwhelming majority of patients with phimosis and excess foreskin. This technique is relatively simple to perform, and patients who underwent this surgery had very few complications. Antibiotics were not required and patients reported less pain than those who were circumcised using conventional methods. Circumcision with this device requires minimal tissue manipulation, and is quicker and safer than circumcision using conventional techniques.
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Affiliation(s)
- Yi-Feng Peng
- Department of Sexual Medicine, Yijishan Hospital, Wannan Medical College, Wuhu 241001, China.
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Guo Y, Luo T, Li QW. [Study on thinking of clinical scientific research of acupuncture and moxibustion]. Zhongguo Zhen Jiu 2005; 25:3-6. [PMID: 16312041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Under guiding of correct thinking of scientific research, development of clinical scientific research of acupuncture and moxibustion is of important significance for promoting academic progresses of acupuncture and moxibustion, increasing clinical therapeutic effect of acupuncture and moxibustion. This paper probes thinking of clinical scientific research of acupuncture and moxibustion and puts forward the guiding principles, i.e. testing and verifying therapeutic effect, searching for laws, expounding mechanisms and guiding clinical practice.
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Affiliation(s)
- Yi Guo
- Department of Acupuncture & Moxibustion, Tianjin College of TCM, Tianjin 300193, China.
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Abstract
It has recently been reported that dopamine may show some biological activities in antitumor and cell apoptosis. We have thoroughly investigated the interaction between dopamine and DNA by CD, UV, fluorescence and electrochemical methods. The results of spectroscopic measurements have indicated that a binding event occurs in a dopamine-DNA system. Besides the electronstatic interaction between a negatively charged DNA molecule and a positively charged dopamine molecule, other binding modes, such as hydrogen-bond and intercalation may also exist in this system. The interaction parameters, including the equilibrium constant and binding numbers, were estimated by an electrochemical method based on the redox current and formal potentials. Both of the two calculation methods showed that the 1:1 type of complex was formed in the dopamine-DNA system and that its equilibrium constant was about 5.85 x 10(6) M(-1). Based on the results of UV, fluorescence and electrochemical experiments in the present study, dopamine may be employed as an effective probe for a DNA assay.
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Affiliation(s)
- Jun Liu
- Department of Chemistry, Tsinghua University, Beijing, PR China
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Li QW, Hu YQ. [Surgical repair of hypospadias with urethral burying and scrotal skin flap transplantation]. Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi 2001; 15:341-2. [PMID: 11762218] [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: 02/23/2023]
Abstract
OBJECTIVE To investigate the surgical approach to repair hypospadias. METHODS From 1992 to 2000, 42 cases with hypospadias accepted secondary urethroplasty after primary operation, which included urethral burying in penile skin, bladder mucosa and scrotal septal vascular pedicled flap urethroplasty, trans-scrotal skin flap covering the wounds with normal meatus urinarius. RESULTS Only one, out of 42 cases, had early complication of urinary fistula in 7 days after urethroplasty, which was cured by scrotal septal vascular pedicled flap urethroplasty 3 months later and had no further complication. The others were all succeeded once for all, the successful rate was 97.6%. CONCLUSION The surgical method to repair hypospadias by urethral burying and transscrotal skin flap technique is safe, reliable and recommendable for clinical use.
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Affiliation(s)
- Q W Li
- Department of Urology, Affiliated Hospital of Bengbu Medical College, Bengbu Anhui, P. R. China 233004
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Yuan JR, Li QW, Li ZL. [Studies on chemical constituents of Lagopsis supina (Steph.) Ik.-GaI]. Zhongguo Zhong Yao Za Zhi 2000; 25:421-3. [PMID: 12515224] [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: 02/28/2023]
Abstract
OBJECTIVE To study the chemical constituents of Lagopsis supina. METHOD Compounds were separated by solvent extraction, column chromatography and TLC, and the structures were determined by chemical and spectral analyses. RESULTS Six compounds were isolated from the ethanol extract of L. supina and identified as eicosanoic acid octadecyl ester, eicosanoic acid-16-methyl-15, 16-hetadecenyl ester, palmitic acid, beta-sitosterol, oleanolic acid and daucosterol. CONCLUSION Except beta-sitosterol, all the compounds were isolated from this genus for the first time.
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Affiliation(s)
- J R Yuan
- Laboratory of Natural Drugs of Shandong University of TCM, Jinan 250014, Shandong, China
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Li QW. [The effect of the IUD on the endometrial blood vessels: the histochemical changes of enzymes and glycogen]. Shengzhi Yu Biyun 1988; 8:15-8. [PMID: 12315488] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/19/2023]
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Li QW. [The effect of IUD on endometrial blood vessels--correlation between vascular changes and bleeding]. Shengzhi Yu Biyun 1988; 8:17-21. [PMID: 12282150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/19/2023]
Abstract
In order to examine the causes of endometrial bleeding following IUD insertion, 22 samples of endometrium from women with an IUD in place for between 1-20 years or more and 10 cases of endometrium without an IUD and with normal menstrual cycles as controls were studied. The quantitative histologic method was utilized to demonstrate the correlation between vascular changes and clinical bleeding. The results indicate that the concentration and expansion of microvascularity, especially the capillary, venule, and venous sinus, increased significantly in most of the IUD-exposed endometriums (75%) as compared with controls (p0.01). The remarkable changes in vessels correlated with clinical bleeding were increased density, obvious dilatation, defect, and rupture of the superficial venous sinus. Mechanical damage, degeneration, necrosis, and denudation of surface endometrium exposed to the IUD could be the direct cause of clinical bleeding.
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