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Wang CJ, Wang QC, Du Y, Sun PF, Ding YH. Spontaneous multivessel coronary artery spasm: a case report. J Invasive Cardiol 2024. [PMID: 38422533 DOI: 10.25270/jic/23.00282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/02/2024]
Abstract
A 60-year-old male presented to the emergency department of our hospital with persistent dull pain in the lower and middle sternum with generalized sweating after a heated argument with another person, and his symptoms did not resolve after 3 hours of onset.
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Affiliation(s)
- Cheng-Jian Wang
- 2nd Clinical Medical College of Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China; Heart Center, Department of Cardiovascular Medicine, Zhejiang Provincial People's Hospital (Affiliated People's Hospital, Hangzhou Medical College), Hangzhou, Zhejiang, China
| | - Qing-Cheng Wang
- Hangzhou Linping Hospital of Traditional Chinese Medicine, Linping, 311106, Zhejiang, China
| | - Ying Du
- 2nd Clinical Medical College of Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China; Heart Center, Department of Cardiovascular Medicine, Zhejiang Provincial People's Hospital (Affiliated People's Hospital, Hangzhou Medical College), Hangzhou, Zhejiang, China
| | - Peng-Fei Sun
- 2nd Clinical Medical College of Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China; Heart Center, Department of Cardiovascular Medicine, Zhejiang Provincial People's Hospital (Affiliated People's Hospital, Hangzhou Medical College), Hangzhou, Zhejiang, China
| | - Ya-Hui Ding
- Heart Center, Department of Cardiovascular Medicine, Zhejiang Provincial People's Hospital (Affiliated People's Hospital, Hangzhou Medical College), Hangzhou, Zhejiang, China.
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Gao YP, Sun PF, Guo WC, Zhou YK, Zheng JS, Tang S. Chemical synthesis of a 28 kDa full-length PET degrading enzyme ICCG by the removable backbone modification strategy. Bioorg Chem 2024; 143:107047. [PMID: 38154387 DOI: 10.1016/j.bioorg.2023.107047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Revised: 12/04/2023] [Accepted: 12/17/2023] [Indexed: 12/30/2023]
Abstract
Chemical protein synthesis offers a powerful way to access otherwise-difficult-to-obtain proteins such as mirror-image proteins. Although a large number of proteins have been chemically synthesized to date, the acquisition to proteins containing hydrophobic peptide fragments has proven challenging. Here, we describe an approach that combines the removable backbone modification strategy and the peptide hydrazide-based native chemical ligation for the chemical synthesis of a 28 kDa full-length PET degrading enzyme IGGC (a higher depolymerization efficiency of variant leaf-branch compost cutinase (LCC)) containing hydrophobic peptide segments. The synthetic ICCG exhibits the enzymatic activity and will be useful in establishing the corresponding mirror-image version of ICCG.
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Affiliation(s)
- Yun-Pu Gao
- The First Affiliated Hospital of USTC, Centre for Advanced Interdisciplinary Science and Biomedicine of IHM, MOE Key Laboratory for Membraneless Organelles and Cellular Dynamics, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230001, China
| | - Peng-Fei Sun
- The First Affiliated Hospital of USTC, Centre for Advanced Interdisciplinary Science and Biomedicine of IHM, MOE Key Laboratory for Membraneless Organelles and Cellular Dynamics, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230001, China
| | - Wu-Chen Guo
- The First Affiliated Hospital of USTC, Centre for Advanced Interdisciplinary Science and Biomedicine of IHM, MOE Key Laboratory for Membraneless Organelles and Cellular Dynamics, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230001, China
| | - Yong-Kang Zhou
- The First Affiliated Hospital of USTC, Centre for Advanced Interdisciplinary Science and Biomedicine of IHM, MOE Key Laboratory for Membraneless Organelles and Cellular Dynamics, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230001, China
| | - Ji-Shen Zheng
- The First Affiliated Hospital of USTC, Centre for Advanced Interdisciplinary Science and Biomedicine of IHM, MOE Key Laboratory for Membraneless Organelles and Cellular Dynamics, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230001, China.
| | - Shan Tang
- The First Affiliated Hospital of USTC, Centre for Advanced Interdisciplinary Science and Biomedicine of IHM, MOE Key Laboratory for Membraneless Organelles and Cellular Dynamics, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230001, China.
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Chen T, Cheng RM, Shen YF, Xiao WF, Wang LJ, Sun PF, Zhang M, Li J. [Effects of nitrogen addition on acidolyzable organic nitrogen components and nitrogen mineralization in aggregates of Pinus massoniana plantations in the Three Gorges Reservoir area, China]. Ying Yong Sheng Tai Xue Bao 2023; 34:2601-2609. [PMID: 37897266 DOI: 10.13287/j.1001-9332.202310.004] [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: 10/30/2023]
Abstract
We sieved soils from a Pinus massoniana plantation in the Three Gorges Reservoir area into four aggregate sizes, including aggregates of 2000-8000 μm (large macroaggregates), 1000-2000 μm (coarse aggregates), 250-1000 μm (small macroaggregates), and <250 μm (microaggregates). We analyzed the differences in the acidolyzable organic N components and net N mineralization of the aggregates under different N addition levels (30, 60, and 90 kg N·hm-2·a-1, representing by N30, N60 and N90, respectively). The results showed that net nitrification rate of the aggregates ranged from 0.30-3.42 mg N·kg-1 and accounted for more than 80% of net nitrogen mineralization. Compared with the control, addition of 30, 60, and 90 kg N·hm-2·a-1 increased total N by 24.1%-45.5%, 6.4%-34.3%, and 7.9%-42.4% in the large aggregates, coarse aggregate, small macroaggregates, and microaggregates, increased net N mineralization rate by 1.3-7.2, 1.4-6.6, and 1.8-12.9 times, but decreased the contents of available phosphorus by 9.3%-36.9%, 12.2%-56.7%, and 19.2%-61.9%, respectively. The contents of total acidolyzable N, soil organic matter, and rates of net ammonification, net nitrification, and net N mineralization increased as the aggregate size decreased, while available phosphorus contents showed an opposite trend. The levels of acid-hydrolyzable N components were ranked as acidolyzable amino acid N > acidolyzable ammonia N > acidolyzable unknown N> acidolyzable amino sugar N. Total N was the dominant contributor to the increases in acid-hydrolyzable N components. Results of stepwise multiple regression analyses showed that acidoly-zable amino acid N and acidolyzable amino sugar N were predictors of net ammonification rate. Acidolyzable amino sugar N, acidolyzable amino acid N, and acidolyzable ammonia N were predictors of net nitrification, net nitrogen mineralization rate, and net nitrogen mineralization accumulation. The physical structure of aggregates was associa-ted with soil net N mineralization. Addition of N increased the contents and bioavailability of acidolyzable organic N, a large amount of which contributed to soil organic matter levels and the decrease in available phosphorus.
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Affiliation(s)
- Tian Chen
- Key Laboratory of Forest Ecology and Environment, National Forestry and Grassland Administration, Research Institute of Forest Ecology, Environment and Protection, Chinese Academy of Forestry, Beijing 100091, China
| | - Rui-Mei Cheng
- Key Laboratory of Forest Ecology and Environment, National Forestry and Grassland Administration, Research Institute of Forest Ecology, Environment and Protection, Chinese Academy of Forestry, Beijing 100091, China
- Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210037, China
| | - Ya-Fei Shen
- Key Laboratory of Forest Ecology and Environment, National Forestry and Grassland Administration, Research Institute of Forest Ecology, Environment and Protection, Chinese Academy of Forestry, Beijing 100091, China
- Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210037, China
| | - Wen-Fa Xiao
- Key Laboratory of Forest Ecology and Environment, National Forestry and Grassland Administration, Research Institute of Forest Ecology, Environment and Protection, Chinese Academy of Forestry, Beijing 100091, China
- Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210037, China
| | - Li-Jun Wang
- Key Laboratory of Forest Ecology and Environment, National Forestry and Grassland Administration, Research Institute of Forest Ecology, Environment and Protection, Chinese Academy of Forestry, Beijing 100091, China
| | - Peng-Fei Sun
- Key Laboratory of Forest Ecology and Environment, National Forestry and Grassland Administration, Research Institute of Forest Ecology, Environment and Protection, Chinese Academy of Forestry, Beijing 100091, China
| | - Meng Zhang
- Key Laboratory of Forest Ecology and Environment, National Forestry and Grassland Administration, Research Institute of Forest Ecology, Environment and Protection, Chinese Academy of Forestry, Beijing 100091, China
| | - Jing Li
- Key Laboratory of Forest Ecology and Environment, National Forestry and Grassland Administration, Research Institute of Forest Ecology, Environment and Protection, Chinese Academy of Forestry, Beijing 100091, China
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Huang HF, Gao XX, Li Q, Ma XY, Du LN, Sun PF, Li S. Dosimetric comparison between stereotactic body radiotherapy and carbon-ion radiation therapy for prostate cancer. Quant Imaging Med Surg 2023; 13:6965-6978. [PMID: 37869307 PMCID: PMC10585578 DOI: 10.21037/qims-23-340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Accepted: 08/25/2023] [Indexed: 10/24/2023]
Abstract
Background Prostate cancer rates have been steadily increasing in recent years. As high-precision radiation therapy methods, stereotactic body radiation therapy (SBRT) and carbon-ion radiation therapy (CIRT) have unique advantages. Analyzing the dosimetric differences between SBRT and CIRT in the treatment of localized prostate cancer can help provide patients with more accurate, individualized treatment plans. Methods We selected computed tomography positioning images and the contours of target volumes of 16 patients with localized prostate cancer who received radiotherapy. We delineated the organs at risk (OARs) on the CyberKnife (CK) treatment planning system (TPS) MultiPlan4.0, which were imported into the CIRT uniform scanning TPS HIMM-1 ci-Plan. Two treatment plans, SBRT and CIRT, were designed for the same patient, and we used SPSS 22.0 for the statistical analysis of data. Results Both SBRT and CIRT plans met the prescribed dose requirements. In terms of target volume exposure dose, D2 (P<0.001), D5 (P<0.001), D50 (P<0.001), D90 (P=0.029), D95 (P<0.001), D98 (P<0.001), and Dmean (P<0.001) under SBRT were significantly higher than those under CIRT; the conformity index (CI) under SBRT was significantly better than that under CIRT (P<0.001); the target volume coverage rate (V95%) and dose homogeneity index (HI) under CIRT were significantly better than those under SBRT (P<0.001). In terms of OAR exposure dosage, the Dmax of the bladder and rectum under SBRT was significantly lower than that under CIRT (P<0.001), but Dmean was in the other direction; the exposure dose of the intestinal tract under CIRT was significantly lower than that under SBRT (P<0.05); Dmax of the femoral head under CIRT was significantly lower than that under SBRT (P<0.05), and there was no statistical difference between them at other doses. Conclusions In this study, we found that when CIRT was used for treating localized prostate cancer, the dose distribution in target volume was more homogeneous and the coverage rate was higher; the average dose of OARs was lower. SBRT had a better CI and higher dose in target volume; the dose hotspot was lower in OARs. It is important to comprehensively consider the dose relationship between local tumor and surrounding tissues when selecting treatment plans.
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Affiliation(s)
- He-Fa Huang
- Department of Irradiation Oncology, the 940th Hospital of Joint Logistics Support Force of Chinese People’s Liberation Army, Lanzhou, China
- School of Nuclear Science and Technology, Lanzhou University, Lanzhou, China
| | - Xing-Xin Gao
- Department of Irradiation Oncology, the 940th Hospital of Joint Logistics Support Force of Chinese People’s Liberation Army, Lanzhou, China
| | - Qiang Li
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, China
| | - Xiao-Yun Ma
- Heavy Ion Center, Wuwei Cancer Hospital, Wuwei, China
| | - Lan-Ning Du
- Department of Radiotherapy, The First Hospital of Lanzhou University, Lanzhou, China
| | - Peng-Fei Sun
- Department of Radiotherapy, The Second Hospital of Lanzhou University, Lanzhou, China
| | - Sha Li
- Department of Irradiation Oncology, the 940th Hospital of Joint Logistics Support Force of Chinese People’s Liberation Army, Lanzhou, China
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Chen Y, Li HR, Li DN, Sun PF, Su JH. Characteristics of net ecosystem exchange and source distribution of Xilinhot grassland, China. Ying Yong Sheng Tai Xue Bao 2023; 34:1509-1516. [PMID: 37694412 DOI: 10.13287/j.1001-9332.202306.006] [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: 09/12/2023]
Abstract
To understand carbon sequestration capacity of grasslands, the changes of CO2 flux in Xilinhot grasslands and the influence of environmental factors were analyzed by using the eddy data of Xilinhot National Climate Observatory in 2018-2021, and the distribution of flux source areas was analyzed. The results showed that the southwest wind prevailed in the study area throughout the year, the source area in the growing season was larger than that in the non-growing season, and the source area under stable atmospheric conditions was larger than that under unstable conditions. The maximum length of source region with a contribution rate of 90% was close to 400 m, which was consistent with the length estimated by the classical law. The net ecosystem exchange (NEE) of Xilinhot grasslands had obvious diurnal and seasonal dynamics, which was manifested as a carbon sink in the daytime and a carbon source at night during the growing season and weak carbon source in the non-growing season. From 2018 to 2021, the annual total NEE were -15.59, -46.28, -41.94, and -78.14 g C·m-2·a-1, respectively, with an average value of -45.49 g C·m-2·a-1, indicating that Xilinhot grassland had strong carbon sequestration capacity. Vapor pressure deficit and photosynthetically active radiation helped grasslands absorb atmospheric CO2. At night, when temperature was above 0 ℃, the increases in air and soil temperature promoted vegetation respiration to release CO2.
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Affiliation(s)
- Yang Chen
- Xilin Golmeng Meteorological Bureau, Xilinhot 026000, Inner Mongolia, China
| | - Hui-Rong Li
- Xilinhot National Climate Observatory, Xilinhot 026000, Inner Mongolia, China
| | - Dong-Nan Li
- Office of Artificial Rainfall of the People's Government of Heilongjiang Province, Harbin 150030, China
| | - Peng-Fei Sun
- Institute of Atmospheric Environment, China Meteorological Administration, Shenyang 110166, China
- Yichun Meteorological Bureau, Yichun 153000, Heilongjiang, China
| | - Jiang-Hua Su
- Xilinhot National Climate Observatory, Xilinhot 026000, Inner Mongolia, China
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Ye BQ, Zhao CZ, Sun PF. Variations and effects of bladder and rectal volume following uniform preparation procedure in cervical cancer: Five fractions of 6 Gy. J Contemp Brachytherapy 2023; 15:123-129. [PMID: 37215620 PMCID: PMC10196726 DOI: 10.5114/jcb.2023.126863] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2022] [Accepted: 03/12/2023] [Indexed: 05/24/2023] Open
Abstract
Purpose To analyze the effects of different bladder and rectal volumes on the dose of organ at risks (OARs) and primary tumors following uniform preparation procedure. Material and methods In this retrospective study, a total of 60 patients with cervical cancer treated with external beam radiation therapy (EBRT) combined with chemotherapy and brachytherapy (BT) during 2019-2022 were included (300 insertions). Then, tandem-ovoid applicators were placed and computed tomography (CT) scanning was performed after each insertion. Delineation of OARs and clinical target volumes (CTVs) were done according to GEC-ESTRO group recommendations. Finally, doses of high-risk clinical target volume (HR-CTV) and OARs were obtained from dose volume histogram (DVH) automatically generated by BT treatment planning system. Results Following a uniform preparation procedure, the median bladder volume of 68.36 cc (range, 29.9-235.68 cc) was in optimal agreement with the recommended bladder volume of ≤ 70 ml, which avoided more manipulation and possible risk of adverse events during general anesthesia. As the bladder filling volume increased, there was no corresponding increase in rectal, HR-CTV, and small bowel volumes, while the sigmoid colon volume decreased. The median rectal volume was 54.95 cc (range, 24.92-168.1 cc), and as the rectal volume increased, HR-CTV, sigmoid colon, and rectum volumes increased, and conversely, small bowel volume decreased. HR-CTV changes with volume affected the rectum, bladder, and HR-CTV, but not the sigmoid colon and small intestine. Conclusions Following a uniform preparation procedure, the bladder and rectum can also be controlled to an optimal volume (B ≤ 70 cc, R ≈ 40 cc), which is related to the dose of the bladder, rectum, and sigmoid colon.
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Affiliation(s)
| | | | - Peng-Fei Sun
- Address for correspondence: Peng-Fei Sun, PhD, Department of Radiotherapy, Second Hospital Affiliated to Lanzhou University, Lanzhou, 730030, China, phone: +86-13919485464, fax: +86-0931-8458109, ✉ e-mail:
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Gan Q, Peng LE, Yang Z, Sun PF, Wang L, Guo H, Tang CY. Demystifying the Role of Surfactant in Tailoring Polyamide Morphology for Enhanced Reverse Osmosis Performance: Mechanistic Insights and Environmental Implications. Environ Sci Technol 2023; 57:1819-1827. [PMID: 36652351 DOI: 10.1021/acs.est.2c08076] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Surfactant-assisted interfacial polymerization (IP) has shown strong potential to improve the separation performance of thin film composite polyamide membranes. A common belief is that the enhanced performance is attributed to accelerated amine diffusion induced by the surfactant, which can promote the IP reaction. However, we show enhanced membrane performance for Tween 80 (a common surfactant), even though it decreased the amine diffusion. Indeed, the membrane performance is closely related to its polyamide roughness features with numerous nanovoids. Inspired by the nanofoaming theory that relates the roughness features to nanobubbles degassed during the IP reaction, we hypothesize that the surfactant can stabilize the generated nanobubbles to tailor the formation of nanovoids. Accordingly, we obtained enlarged nanovoids when the surfactant was added below its critical micelle concentration (CMC). In addition, both the membrane permeance and selectivity were enhanced, thanks to the enlarged nanovoids and reduced defects in the polyamide layer. Increasing the concentration above CMC resulted in shrunken nanovoids and deteriorated performance, which can be ascribed to the decreased stabilization effect caused by micelle formation. Interestingly, better antifouling performance was also observed for the surfactant-assisted membranes. Our current study provides mechanistic insights into the critical role of surfactant during the IP reaction, which may have important implications for more efficient membrane-based desalination and water reuse.
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Affiliation(s)
- Qimao Gan
- Department of Civil Engineering, The University of Hong Kong, Pokfulam, Hong Kong SAR999077, P. R., China
| | - Lu Elfa Peng
- Department of Civil Engineering, The University of Hong Kong, Pokfulam, Hong Kong SAR999077, P. R., China
| | - Zhe Yang
- Department of Civil Engineering, The University of Hong Kong, Pokfulam, Hong Kong SAR999077, P. R., China
| | - Peng-Fei Sun
- Department of Civil Engineering, The University of Hong Kong, Pokfulam, Hong Kong SAR999077, P. R., China
| | - Li Wang
- Department of Civil Engineering, The University of Hong Kong, Pokfulam, Hong Kong SAR999077, P. R., China
| | - Hao Guo
- Department of Civil Engineering, The University of Hong Kong, Pokfulam, Hong Kong SAR999077, P. R., China
| | - Chuyang Y Tang
- Department of Civil Engineering, The University of Hong Kong, Pokfulam, Hong Kong SAR999077, P. R., China
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Ma XY, Tian K, Sun PF. Multiple primary malignant neoplasm: Case report and comprehensive literature review. Front Oncol 2023; 12:1090634. [PMID: 36686734 PMCID: PMC9846320 DOI: 10.3389/fonc.2022.1090634] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2022] [Accepted: 12/12/2022] [Indexed: 01/05/2023] Open
Abstract
Multiple primary tumors, especially quadruple primary tumors, are extremely rare clinically, and there is no standard protocol for clinical management. We described a case in which a bone tumor, a malignant bladder tumor, a malignant melanoma, and an intrahepatic cholangiocarcinoma were all original malignancies. The patient is a 79-year-old woman who underwent surgery for a left middle finger bone tumor 45 years ago, as well as surgery for bladder malignancy and postoperative adjuvant chemotherapy 15 years ago, and the precise pathological results and treatment are unclear. One year ago, she underwent amputation of the toe due to a black mass of the right toe and was diagnosed pathologically as a freckled malignant melanoma of the extremity. Prior to postoperative adjuvant systemic medication, PET/CT revealed malignancy in the lateral segment of the left lobe of the liver, and multiple lymphadenopathies in the left parotid gland, hilar hepatic, and retroperitoneal region. Intrahepatic cholangiocarcinoma was found in the liver puncture biopsy's pathology report. The serum sample's next-generation sequencing (NGS) revealed a missense mutation, designated P.G12V, in exon 2 of the KRAS gene. Based on patients with malignant melanoma and intrahepatic cholangiocarcinoma, she received 6 cycles of GP (gemcitabine/cisplatin) combined with Camrelizumab systemic therapy, and followed by 3 cycles of Camrelizumab maintenance therapy, the efficacy was evaluated as stable disease (SD) during treatment. When the 4th cycle of Camrelizumab was suggested for maintenance therapy, the efficacy evaluation revealed that the tumor had greatly advanced. The patient refused to continue anti-tumor therapy and passed away from septic shock and multiple organ failure 3 months later. The patient had satisfactory efficacy and lived for a year after being diagnosed with two primary cancers. Despite the rarity of quadruple primary tumors and the lack of a conventional clinical management strategy, we postulate that germline mutations in the KRAS gene may be closely associated with the formation and development of multiple primary tumors. NGS testing is necessary for clinical management, and systemic treatment based on concurrent multiple main tumors is the key to improving prognosis.
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Affiliation(s)
- Xue-Yan Ma
- Department of Oncology, Second Clinical Medical College of Lanzhou University, Lanzhou, China,Department of Radiotherapy, Second Hospital of Lanzhou University, Lanzhou, China
| | - Kun Tian
- Department of Medical Oncology, Second Hospital of Lanzhou University, Lanzhou, China
| | - Peng-Fei Sun
- Department of Radiotherapy, Second Hospital of Lanzhou University, Lanzhou, China,*Correspondence: Peng-Fei Sun,
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Ji JJ, Chen SY, Yang ZW, Zhang R, Qian LL, Jiang Y, Guo JQ, Wu Y, Fan QL, Yao YY, Sun PF. Delivery of Mir-196c-3p with NIR-II light-triggered gel attenuates cardiomyocyte ferroptosis in cardiac ischemia-reperfusion injury. Nanomedicine 2023; 47:102618. [PMID: 36270453 DOI: 10.1016/j.nano.2022.102618] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Revised: 09/21/2022] [Accepted: 10/10/2022] [Indexed: 11/06/2022]
Abstract
Ferroptosis plays an important role in ischemia-reperfusion (I/R)-induced cardiac injury and there are many defects in current targeted delivery of miRNAs for the treatment of ferroptosis. We herein report a unique hydrogel (Gel) that can be triggered by a near-infrared-II (NIR-II) light with deep tissue penetration and biocompatible maximum permissible exposure (MPE) value for in situ treatment after I/R. The mir-196c-3p mimic (mimics) and photothermal nanoparticles (BTN) were co-encapsulated in an injectable Gel (mimics + Gel/BTN) with NIR-II light-triggered release. Using 1064 nm light irradiation, local microenvironment photothermal-triggered on-demand noninvasive controllable delivery of miRNA was achieved, aiming to inhibit I/R-induced ferroptosis. Consequently, declined ferroptosis in cardiomyocytes and improved cardiac function, survival rate in rats was achieved through the controlled release of Gel/BTN mimics in I/R model to simultaneously inhibit ferroptosis hub genes NOX4, P53, and LOX expression.
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Affiliation(s)
- Jing-Jing Ji
- Department of Cardiology, Zhongda Hospital, Medical School of Southeast University, 87 Dingjiaqiao, Nanjing, Jiangsu 210009, China; Department of Cardiology, Second Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang Province 310009, China
| | - Shang-Yu Chen
- State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, Nanjing 210023, China
| | - Zi-Wei Yang
- Department of Cardiology, Zhongda Hospital, Medical School of Southeast University, 87 Dingjiaqiao, Nanjing, Jiangsu 210009, China
| | - Rui Zhang
- Department of Cardiology, Zhongda Hospital, Medical School of Southeast University, 87 Dingjiaqiao, Nanjing, Jiangsu 210009, China
| | - Ling-Lin Qian
- Department of Cardiology, Zhongda Hospital, Medical School of Southeast University, 87 Dingjiaqiao, Nanjing, Jiangsu 210009, China
| | - Yu Jiang
- Department of Cardiology, Zhongda Hospital, Medical School of Southeast University, 87 Dingjiaqiao, Nanjing, Jiangsu 210009, China
| | - Jia-Qi Guo
- Department of Cardiology, Zhongda Hospital, Medical School of Southeast University, 87 Dingjiaqiao, Nanjing, Jiangsu 210009, China
| | - Ya Wu
- Department of Cardiology, Zhongda Hospital, Medical School of Southeast University, 87 Dingjiaqiao, Nanjing, Jiangsu 210009, China
| | - Qu-Li Fan
- State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, Nanjing 210023, China
| | - Yu-Yu Yao
- Department of Cardiology, Zhongda Hospital, Medical School of Southeast University, 87 Dingjiaqiao, Nanjing, Jiangsu 210009, China.
| | - Peng-Fei Sun
- State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, Nanjing 210023, China.
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Wang Y, Sun PF, Zhang C, Huang Z, Dang J, Liu X, Bao Z, Ma X, Zhang W, Cao R, Zheng H. Fe Single‐atom Sites in Two‐Dimensional Nitrogen doped Porous Carbon for Electrocatalytic Oxygen Reduction. ChemCatChem 2022. [DOI: 10.1002/cctc.202200134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Yanzhi Wang
- Shaanxi Normal University School of Chemistry and Chemical Engineering CHINA
| | - Peng-Fei Sun
- Shaanxi Normal University School of Chemistry and Chemical Engineering CHINA
| | - Chaochao Zhang
- Shaanxi Normal University School of Chemistry and Chemical Engineering CHINA
| | - Zhehao Huang
- Stockholm University: Stockholms Universitet Department of Materials and Environmental Chemistry SWEDEN
| | - Jingshuang Dang
- Shaanxi Normal University School of Chemistry and Chemical Engineering CHINA
| | - Xinrong Liu
- Shaanxi Normal University School of Chemistry and Chemical Engineering CHINA
| | - Zijia Bao
- Shaanxi Normal University School of Chemistry and Chemical Engineering CHINA
| | - Xiaoning Ma
- Shaanxi Normal University School of Chemistry and Chemical Engineering CHINA
| | - Wei Zhang
- Shaanxi Normal University School of Chemistry and Chemical Engineering CHINA
| | - Rui Cao
- Shaanxi Normal University School of Chemistry and Chemical Engineering CHINA
| | - Haoquan Zheng
- Shaanxi Normal University No. 620, West Chang'an Avenue, Chang'an District 710119 Xi'an CHINA
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Sun PF, Yu Y, An ZY, Li J, Yang CW, Bao XH, Pan JW. Deterministic Time-Bin Entanglement between a Single Photon and an Atomic Ensemble. Phys Rev Lett 2022; 128:060502. [PMID: 35213187 DOI: 10.1103/physrevlett.128.060502] [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] [Received: 08/05/2021] [Accepted: 01/20/2022] [Indexed: 06/14/2023]
Abstract
Hybrid matter-photon entanglement is the building block for quantum networks. It is very favorable if the entanglement can be prepared with a high probability. In this Letter, we report the deterministic creation of entanglement between an atomic ensemble and a single photon by harnessing the Rydberg blockade. We design a scheme that creates entanglement between a single photon's temporal modes and the Rydberg levels that host a collective excitation, using a process of cyclical retrieving and patching. The hybrid entanglement is tested via retrieving the atomic excitation as a second photon and performing correlation measurements, which suggest an entanglement fidelity of 87.8%. Our source of matter-photon entanglement will enable the entangling of remote quantum memories with much higher efficiency.
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Affiliation(s)
- Peng-Fei Sun
- Hefei National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
- CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Yong Yu
- Hefei National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
- CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Zi-Ye An
- Hefei National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
- CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Jun Li
- Hefei National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
- CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Chao-Wei Yang
- Hefei National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
- CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Xiao-Hui Bao
- Hefei National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
- CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Jian-Wei Pan
- Hefei National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
- CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
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Tan XQ, Qian LX, Zhao JF, Sun PF, Li QQ, Feng RX. Diagnostic Model of Superficial Lymph Nodes Based on Clinical History and Ultrasound Findings: A Prospective Cohort Study. Front Oncol 2022; 11:756878. [PMID: 35087745 PMCID: PMC8787766 DOI: 10.3389/fonc.2021.756878] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Accepted: 12/09/2021] [Indexed: 11/13/2022] Open
Abstract
OBJECTIVES Differentiation of benign and malignant changes in lymph nodes is extremely important. We aimed to identify the ultrasound and clinical diagnostic criteria permitting this differentiation. METHODS Clinical and ultrasound data were collected at Beijing Friendship Hospital from May 2019 to November 2020. Univariate and multivariate analysis were performed using statistical methods, and a mathematical model was established to evaluate benign and malignant lymph nodes. RESULTS A total of 1343 LNs (person) with US-guided core needle or fine needle biopsy (CNB or FNB) were evaluated in the analysis. Variables with a high predictive power were sex (odds ratio, OR: 3.360, p<0.001), short diameter (OR: 4.660, p<0.001), short/long diameter (S/L) ratio (OR: 1.515, P=0.007), border (OR: 1.626, p=0.002), cortex echogenicity (OR: 2.089, P<0.001), fusion (OR: 2.313, p=0.002), vascularity (peripheral vascularity, OR: 3.424, p<0.001; mixed vascularity, OR: 4.127, p<0.001), and medical history (fever/local pain, OR: 0.316, p<0.001; tumor history in the drainage area, OR: 4.595, p<0.001; both, OR: 5.554, p<0.001). The cut-off score on receiver operating characteristic (ROC) curve analysis using these eight variables was 2.5. The largest area under the ROC curve (Az) value was 82.3% (95% confidence interval (CI), 0.805-0.851), and the sensitivity (79.4%), specificity (72.3%), and accuracy (74.8%) were higher than those for nearly all the single indices. CONCLUSION The model of combination of ultrasound and clinical symptoms can preliminarily evaluate the benign and malignant of lymph nodes.
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Affiliation(s)
- Xiao-Qu Tan
- Department of Ultrasound, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Lin-Xue Qian
- Department of Ultrasound, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Jun-Feng Zhao
- Department of Ultrasound, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Peng-Fei Sun
- Department of Ultrasound, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Qing-Qing Li
- Department of Ultrasound, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Ruo-Xuan Feng
- Department of Ultrasound, Beijing Friendship Hospital, Capital Medical University, Beijing, China
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13
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Wang LJ, Cheng RM, Xiao WF, Sun PF, Shen YF, Zeng LX, Chen T. [Effects of nitrogen addition on soil microbial biomass and enzyme activities of Pinus massoniana- Quercus variabilis mixed plantations in the Three Gorges Reservoir Area]. Ying Yong Sheng Tai Xue Bao 2022; 33:42-50. [PMID: 35224924 DOI: 10.13287/j.1001-9332.202201.034] [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
We examined the effects of nitrogen addition (0, 30, 60, and 90 kg N·hm-2·a-1) to soil microbial biomass, enzyme activities, and nutrient contents of the Pinus massoniana-Quercus variabilis mixed plantations in the Three Gorges Reservoir Area, with the aim to provide a theoretical basis for predicting soil carbon dynamics under the background of continuously increasing atmospheric nitrogen deposition in this area. The results showed that nitrogen addition at all levels led to a significant increase of the contents of organic carbon, total nitrogen, microbial biomass carbon (MBC), microbial biomass nitrogen (MBN), and microbial biomass phosphorus (MBP) in the forest soil, while a decrease of soil pH-value, and no significant effect on the total phosphorus content. Nitrogen addition increased the activities of β-1-4 glucosidase (BG), cellobiose hydrolase (CB), acid phosphatase (AP), N-acetylglucosaminosidase (NAG) and peroxidase (POD), while inhibited that of polyphenol oxidase (PPO). There was a significant seasonal variation in soil oxidase activities, in which the peroxidase activity was higher in May and August, and the polyphenol oxidase activity was the highest in August. Soil enzyme activities were significantly correlated with soil moisture and the contents of soil nutrients, MBC, MBN, and MBP. The variation of soil enzyme activities was caused by the comprehensive effects of multiple factors. The redundancy analysis (RDA) showed that the contents of total soil nitrogen and MBC were the main environmental factors driving soil enzyme activities. The continuous increase of atmosphere nitrogen deposition would lead to soil acidification and promote the turnover of soil organic carbon and nutrient cycling in the Pinus massoniana-Quercus variabilis mixed plantations of the study area.
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Affiliation(s)
- Li-Jun Wang
- Key Laboratory of Forest Ecology and Environment of National Forestry and Grassland Administration, Institute of Forest Ecology, Environment and Nature Conservation, Chinese Academy of Forestry, Beijing 100091, China
| | - Rui-Mei Cheng
- Key Laboratory of Forest Ecology and Environment of National Forestry and Grassland Administration, Institute of Forest Ecology, Environment and Nature Conservation, Chinese Academy of Forestry, Beijing 100091, China
- Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210037, China
| | - Wen-Fa Xiao
- Key Laboratory of Forest Ecology and Environment of National Forestry and Grassland Administration, Institute of Forest Ecology, Environment and Nature Conservation, Chinese Academy of Forestry, Beijing 100091, China
- Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210037, China
| | - Peng-Fei Sun
- Key Laboratory of Forest Ecology and Environment of National Forestry and Grassland Administration, Institute of Forest Ecology, Environment and Nature Conservation, Chinese Academy of Forestry, Beijing 100091, China
| | - Ya-Fei Shen
- Key Laboratory of Forest Ecology and Environment of National Forestry and Grassland Administration, Institute of Forest Ecology, Environment and Nature Conservation, Chinese Academy of Forestry, Beijing 100091, China
- Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210037, China
| | - Li-Xiong Zeng
- Key Laboratory of Forest Ecology and Environment of National Forestry and Grassland Administration, Institute of Forest Ecology, Environment and Nature Conservation, Chinese Academy of Forestry, Beijing 100091, China
- Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210037, China
| | - Tian Chen
- Key Laboratory of Forest Ecology and Environment of National Forestry and Grassland Administration, Institute of Forest Ecology, Environment and Nature Conservation, Chinese Academy of Forestry, Beijing 100091, China
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Yu Y, Sun PF, Zhang YZ, Bai B, Fang YQ, Luo XY, An ZY, Li J, Zhang J, Xu F, Bao XH, Pan JW. Measurement-Device-Independent Verification of a Quantum Memory. Phys Rev Lett 2021; 127:160502. [PMID: 34723577 DOI: 10.1103/physrevlett.127.160502] [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] [Received: 04/29/2021] [Accepted: 09/21/2021] [Indexed: 06/13/2023]
Abstract
In this Letter we report an experiment that verifies an atomic-ensemble quantum memory via a measurement-device-independent scheme. A single photon generated via Rydberg blockade in one atomic ensemble is stored in another atomic ensemble via electromagnetically induced transparency. After storage for a long duration, this photon is retrieved and interfered with a second photon to perform a joint Bell-state measurement (BSM). The quantum state for each photon is chosen based on a quantum random number generator, respectively, in each run. By evaluating correlations between the random states and BSM results, we certify that our memory is genuinely entanglement preserving.
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Affiliation(s)
- Yong Yu
- Hefei National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei, Anhui 230026, China; and CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Peng-Fei Sun
- Hefei National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei, Anhui 230026, China; and CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Yu-Zhe Zhang
- Hefei National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei, Anhui 230026, China; and CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Bing Bai
- Hefei National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei, Anhui 230026, China; and CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Yu-Qiang Fang
- Hefei National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei, Anhui 230026, China; and CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Xi-Yu Luo
- Hefei National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei, Anhui 230026, China; and CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Zi-Ye An
- Hefei National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei, Anhui 230026, China; and CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Jun Li
- Hefei National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei, Anhui 230026, China; and CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Jun Zhang
- Hefei National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei, Anhui 230026, China; and CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Feihu Xu
- Hefei National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei, Anhui 230026, China; and CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Xiao-Hui Bao
- Hefei National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei, Anhui 230026, China; and CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Jian-Wei Pan
- Hefei National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei, Anhui 230026, China; and CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
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15
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Sun PF, Yang Z, Song X, Lee JH, Tang CY, Park HD. Interlayered Forward Osmosis Membranes with Ti 3C 2T x MXene and Carbon Nanotubes for Enhanced Municipal Wastewater Concentration. Environ Sci Technol 2021; 55:13219-13230. [PMID: 34314168 DOI: 10.1021/acs.est.1c01968] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Forward osmosis (FO) hybrid systems have the potential to simultaneously recover nutrients and water from wastewater. However, the lack of membranes with high permeability and selectivity has limited the development and scale-up of these hybrid systems. In this study, we fabricated a novel thin-film nanocomposite membrane featuring an interlayer of Ti3C2Tx MXene intercalated with carbon nanotubes (M/C-TFNi). Owing to the enhanced confinement effect on interfacial degassing and increased amine monomer sorption by the interlayer, the resulting M/C-TFNi FO membrane has a greater degree of cross-linking and roughness. In comparison with the thin-film composite (TFC) membrane without an interlayered structure, the M/C-TFNi membrane attained a water flux that was four times higher and a lower specific salt flux. Notably, the M/C-TFNi membrane exhibited excellent concentration efficiency for real municipal wastewater and enhanced rejection of ammonia nitrogen, which breaks the permeability-selectivity upper bound. This study provides a new avenue for the rational design and development of high-performance FO membranes for environmental applications.
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Affiliation(s)
- Peng-Fei Sun
- School of Civil, Environmental and Architectural Engineering, Korea University, Seoul 02841, South Korea
| | - Zhe Yang
- Department of Civil Engineering, The University of Hong Kong, Hong Kong 999077, P. R. China
| | - Xiaoxiao Song
- Centre for Membrane and Water Science & Technology, Ocean College, Zhejiang University of Technology, Hangzhou 310014, P. R. China
| | - Jeong Hoon Lee
- School of Civil, Environmental and Architectural Engineering, Korea University, Seoul 02841, South Korea
| | - Chuyang Y Tang
- Department of Civil Engineering, The University of Hong Kong, Hong Kong 999077, P. R. China
| | - Hee-Deung Park
- School of Civil, Environmental and Architectural Engineering, Korea University, Seoul 02841, South Korea
- KU-KIST Graduate School of Converging Science and Technology, Korea University, Seoul 02841, South Korea
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16
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Park KH, Sun PF, Kang EH, Han GD, Kim BJ, Jang Y, Lee SH, Shim JH, Park HD. Photocatalytic anti-biofouling performance of nanoporous ceramic membranes treated by atomic layer deposited ZnO. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.118935] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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17
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Wang L, Rehman D, Sun PF, Deshmukh A, Zhang L, Han Q, Yang Z, Wang Z, Park HD, Lienhard JH, Tang CY. Novel Positively Charged Metal-Coordinated Nanofiltration Membrane for Lithium Recovery. ACS Appl Mater Interfaces 2021; 13:16906-16915. [PMID: 33798334 DOI: 10.1021/acsami.1c02252] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Nanofiltration (NF) with high water flux and precise separation performance with high Li+/Mg2+ selectivity is ideal for lithium brine recovery. However, conventional polyamide-based commercial NF membranes are ineffective in lithium recovery processes due to their undesired Li+/Mg2+ selectivity. In addition, they are constrained by the water permeance selectivity trade-off, which means that a highly permeable membrane often has lower selectivity. In this study, we developed a novel nonpolyamide NF membrane based on metal-coordinated structure, which exhibits simultaneously improved water permeance and Li+/Mg2+ selectivity. Specifically, the optimized Cu-m-phenylenediamine (MPD) membrane demonstrated a high water permeance of 16.2 ± 2.7 LMH/bar and a high Li+/Mg2+ selectivity of 8.0 ± 1.0, which surpassed the trade-off of permeance selectivity. Meanwhile, the existence of copper in the Cu-MPD membrane further enhanced anti-biofouling property and the metal-coordinated nanofiltration membrane possesses a pH-responsive property. Finally, a transport model based on the Nernst-Planck equations has been developed to fit the water flux and rejection of uncharged solutes to the experiments conducted. The model had a deviation below 2% for all experiments performed and suggested an average pore radius of 1.25 nm with a porosity of 21% for the Cu-MPD membrane. Overall, our study provides an exciting approach for fabricating a nonpolyamide high-performance nanofiltration membrane in the context of lithium recovery.
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Affiliation(s)
- Li Wang
- School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, P. R. China
- Department of Civil Engineering, The University of Hong Kong, Pokfulam, Hong Kong, SAR 999077, P. R. China
| | - Danyal Rehman
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Peng-Fei Sun
- School of Civil, Environmental and Architectural Engineering, Korea University, Seoul 02841, South Korea
| | - Akshay Deshmukh
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Liyuan Zhang
- Department of Civil Engineering, The University of Hong Kong, Pokfulam, Hong Kong, SAR 999077, P. R. China
| | - Qi Han
- School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, P. R. China
| | - Zhe Yang
- Department of Civil Engineering, The University of Hong Kong, Pokfulam, Hong Kong, SAR 999077, P. R. China
| | - Zhongying Wang
- School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, P. R. China
| | - Hee-Deung Park
- School of Civil, Environmental and Architectural Engineering, Korea University, Seoul 02841, South Korea
| | - John H Lienhard
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Chuyang Y Tang
- Department of Civil Engineering, The University of Hong Kong, Pokfulam, Hong Kong, SAR 999077, P. R. China
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Wang XJ, Yang SJ, Sun PF, Jing B, Li J, Zhou MT, Bao XH, Pan JW. Cavity-Enhanced Atom-Photon Entanglement with Subsecond Lifetime. Phys Rev Lett 2021; 126:090501. [PMID: 33750156 DOI: 10.1103/physrevlett.126.090501] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Accepted: 02/01/2021] [Indexed: 06/12/2023]
Abstract
A cold atomic ensemble suits well for optical quantum memories, and its entanglement with a single photon forms the building block for quantum networks that give promise for many revolutionary applications. Efficiency and lifetime are among the most important figures of merit for a memory. In this Letter, we report the realization of entanglement between an atomic ensemble and a single photon with subsecond lifetime and high efficiency. We engineer dual control modes in a ring cavity to create entanglement and make use of three-dimensional optical lattice to prolong memory lifetime. The memory efficiency is 38% for 0.1 s storage. We verify the atom-photon entanglement after 1 s storage by testing the Bell inequality with a result of S=2.36±0.14.
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Affiliation(s)
- Xu-Jie Wang
- Hefei National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
- CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Sheng-Jun Yang
- Hefei National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
- CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Peng-Fei Sun
- Hefei National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
- CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Bo Jing
- Hefei National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
- CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Jun Li
- Hefei National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
- CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Ming-Ti Zhou
- Hefei National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
- CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Xiao-Hui Bao
- Hefei National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
- CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Jian-Wei Pan
- Hefei National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
- CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
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Sun PF, Wang WL, Qin SX, Zhao X, Dang JS. B36 nanoflake supported nickel as an efficient single-atom catalyst for oxygen reduction reaction: A first-principles study. Molecular Catalysis 2021. [DOI: 10.1016/j.mcat.2020.111302] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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20
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Yang Z, Sun PF, Li X, Gan B, Wang L, Song X, Park HD, Tang CY. A Critical Review on Thin-Film Nanocomposite Membranes with Interlayered Structure: Mechanisms, Recent Developments, and Environmental Applications. Environ Sci Technol 2020; 54:15563-15583. [PMID: 33213143 DOI: 10.1021/acs.est.0c05377] [Citation(s) in RCA: 128] [Impact Index Per Article: 32.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
The separation properties of polyamide reverse osmosis and nanofiltration membranes, widely applied for desalination and water reuse, are constrained by the permeability-selectivity upper bound. Although thin-film nanocomposite (TFN) membranes incorporating nanomaterials exhibit enhanced water permeance, their rejection is only moderately improved or even impaired due to agglomeration of nanomaterials and formation of defects. A novel type of TFN membranes featuring an interlayer of nanomaterials (TFNi) has emerged in recent years. These novel TFNi membranes show extraordinary improvement in water flux (e.g., up to an order of magnitude enhancement) along with better selectivity. Such enhancements can be achieved by a wide selection of nanomaterials, ranging from nanoparticles, one-/two-dimensional materials, to interfacial coatings. The use of nanostructured interlayers not only improves the formation of polyamide rejection layers but also provides an optimized water transport path, which enables TFNi membranes to potentially overcome the longstanding trade-off between membrane permeability and selectivity. Furthermore, TFNi membranes can potentially enhance the removal of heavy metals and micropollutants, which is critical for many environmental applications. This review critically examines the recent developments of TFNi membranes and discusses the underlying mechanisms and design criteria. Their potential environmental applications are also highlighted.
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Affiliation(s)
- Zhe Yang
- Department of Civil Engineering, The University of Hong Kong, Pokfulam, Hong Kong, SAR, P. R. China
| | - Peng-Fei Sun
- School of Civil, Environmental and Architectural Engineering, Korea University, Seoul, 02841, South Korea
- Department of Civil Engineering, The University of Hong Kong, Pokfulam, Hong Kong, SAR, P. R. China
| | - Xianhui Li
- Key Laboratory for City Cluster Environmental Safety and Green Development of the Ministry of Education, Institute of Environmental and Ecological Engineering, Guangdong University of Technology, Guangzhou, 510006, China
| | - Bowen Gan
- Department of Civil Engineering, The University of Hong Kong, Pokfulam, Hong Kong
- Centre for Membrane and Water Science & Technology, Ocean College, Zhejiang University of Technology, Hangzhou, 310014, P. R. China
| | - Li Wang
- Department of Civil Engineering, The University of Hong Kong, Pokfulam, Hong Kong
| | - Xiaoxiao Song
- Centre for Membrane and Water Science & Technology, Ocean College, Zhejiang University of Technology, Hangzhou, 310014, P. R. China
| | - Hee-Deung Park
- School of Civil, Environmental and Architectural Engineering, Korea University, Seoul, 02841, South Korea
| | - Chuyang Y Tang
- Department of Civil Engineering, The University of Hong Kong, Pokfulam, Hong Kong, SAR, P. R. China
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21
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Yang F, Zhao ZC, Hu AJ, Sun PF, Zhang B, Yu MC, Wang J. Synchronous sporadic bilateral multiple chromophobe renal cell carcinoma accompanied by a clear cell carcinoma and a cyst: A case report. World J Clin Cases 2020; 8:3064-3073. [PMID: 32775388 PMCID: PMC7385615 DOI: 10.12998/wjcc.v8.i14.3064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Revised: 05/01/2020] [Accepted: 06/25/2020] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Renal cell carcinomas are usually unilateral. However, they are bilateral in 2% to 4% of sporadic cases and is considerably more common in familial cases. Synchronous sporadic bilateral multiple chromophobe renal cell carcinoma (CHRCC) with different subtypes is rare.
CASE SUMMARY In this case report, we describe a case of synchronous bilateral CHRCC with two histological variants, accompanied by a clear cell carcinoma and a cyst in a 50-year-old male. The patient underwent retroperitoneal laparoscopic bilateral nephron-sparing surgery and there was no serious postoperative renal dysfunction.
CONCLUSION We report a rare case of synchronous bilateral CHRCC with two histological variants associated with a clear cell carcinoma and a cyst.
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Affiliation(s)
- Fan Yang
- Department of Radiology, Peking University Shougang Hospital, Beijing 100144, China
| | - Zi-Chen Zhao
- Department of Urinary Surgery, Peking University Shougang Hospital, Beijing 100144, China
| | - A-Jin Hu
- Department of Pathology, Peking University Shougang Hospital, Beijing 100144, China
| | - Peng-Fei Sun
- Department of Ultrasound, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
| | - Bin Zhang
- Department of Radiology, Peking University Shougang Hospital, Beijing 100144, China
| | - Ming-Chuan Yu
- Department of Radiology, Peking University Shougang Hospital, Beijing 100144, China
| | - Juan Wang
- Department of Radiology, Peking University Shougang Hospital, Beijing 100144, China
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22
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Weng ML, Chen WK, Chen XY, Lu H, Sun ZR, Yu Q, Sun PF, Xu YJ, Zhu MM, Jiang N, Zhang J, Zhang JP, Song YL, Ma D, Zhang XP, Miao CH. Fasting inhibits aerobic glycolysis and proliferation in colorectal cancer via the Fdft1-mediated AKT/mTOR/HIF1α pathway suppression. Nat Commun 2020; 11:1869. [PMID: 32313017 PMCID: PMC7170903 DOI: 10.1038/s41467-020-15795-8] [Citation(s) in RCA: 117] [Impact Index Per Article: 29.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2018] [Accepted: 03/26/2020] [Indexed: 02/07/2023] Open
Abstract
Evidence suggests that fasting exerts extensive antitumor effects in various cancers, including colorectal cancer (CRC). However, the mechanism behind this response is unclear. We investigate the effect of fasting on glucose metabolism and malignancy in CRC. We find that fasting upregulates the expression of a cholesterogenic gene, Farnesyl-Diphosphate Farnesyltransferase 1 (FDFT1), during the inhibition of CRC cell aerobic glycolysis and proliferation. In addition, the downregulation of FDFT1 is correlated with malignant progression and poor prognosis in CRC. Moreover, FDFT1 acts as a critical tumor suppressor in CRC. Mechanistically, FDFT1 performs its tumor-inhibitory function by negatively regulating AKT/mTOR/HIF1α signaling. Furthermore, mTOR inhibitor can synergize with fasting in inhibiting the proliferation of CRC. These results indicate that FDFT1 is a key downstream target of the fasting response and may be involved in CRC cell glucose metabolism. Our results suggest therapeutic implications in CRC and potential crosstalk between a cholesterogenic gene and glycolysis. The molecular mechanisms underpinning how fasting inhibits tumourigenesis are not completely elucidated. Here, the authors show that fasting upregulates the cholesterogenic gene FDFT1 which leads to decreased AKT/mTOR/HIF1a signalling and glycolysis reduction in colorectal cancer.
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Affiliation(s)
- Mei-Lin Weng
- Department of Anesthesiology, Fudan University Shanghai Cancer Center; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, China
| | - Wan-Kun Chen
- Department of Anesthesiology, Fudan University Shanghai Cancer Center; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, China.,Department of Anesthesiology, Zhongshan Hospital, Fudan University, Shanghai, 200032, China
| | - Xiang-Yuan Chen
- Department of Anesthesiology, Fudan University Shanghai Cancer Center; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, China
| | - Hong Lu
- Department of Anesthesiology, Fudan University Shanghai Cancer Center; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, China
| | - Zhi-Rong Sun
- Department of Anesthesiology, Fudan University Shanghai Cancer Center; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, China
| | - Qi Yu
- Department of Radiation Oncology, Fudan University Shanghai Cancer Center; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, China
| | - Peng-Fei Sun
- Department of Anesthesiology, Fudan University Shanghai Cancer Center; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, China
| | - Ya-Jun Xu
- Department of Anesthesiology, Fudan University Shanghai Cancer Center; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, China
| | - Min-Min Zhu
- Department of Anesthesiology, Fudan University Shanghai Cancer Center; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, China
| | - Nan Jiang
- Key Laboratory of Metabolism and Molecular Medicine, Ministry of Education, Department of Biochemistry and Molecular Biology, Collaborative Innovation Center of Genetics and Development, Institutes of Biomedical Science, School of Basic Medical Science, Fudan University, Shanghai, 200032, China.,Institute of Biomedical Science, Fudan University, Shanghai, 200032, China
| | - Jin Zhang
- Key Laboratory of Metabolism and Molecular Medicine, Ministry of Education, Department of Biochemistry and Molecular Biology, Collaborative Innovation Center of Genetics and Development, Institutes of Biomedical Science, School of Basic Medical Science, Fudan University, Shanghai, 200032, China.,Institute of Biomedical Science, Fudan University, Shanghai, 200032, China
| | - Jian-Ping Zhang
- Institute of Modern Physics, Fudan University; Department of Nuclear Medicine, Fudan University Shanghai Cancer Center; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, China
| | - Yuan-Lin Song
- Department of Pulmonary Medicine, Zhongshan Hospital, Fudan University, Shanghai, 200032, China
| | - Duan Ma
- Key Laboratory of Metabolism and Molecular Medicine, Ministry of Education, Department of Biochemistry and Molecular Biology, Collaborative Innovation Center of Genetics and Development, Institutes of Biomedical Science, School of Basic Medical Science, Fudan University, Shanghai, 200032, China. .,Institute of Biomedical Science, Fudan University, Shanghai, 200032, China. .,Children's Hospital, Fudan University, Shanghai, 200032, China.
| | - Xiao-Ping Zhang
- The Institute of Intervention Vessel, Tongji University School of Medicine, Shanghai, 200092, China. .,Shanghai Center of Thyroid Diseases, Tongji University School of Medicine, Shanghai, 200092, China.
| | - Chang-Hong Miao
- Department of Anesthesiology, Fudan University Shanghai Cancer Center; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, China. .,Department of Anesthesiology, Zhongshan Hospital, Fudan University, Shanghai, 200032, China.
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23
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Sun PF, Wang WL, Zhao X, Dang JS. Defective h-BN sheet embedded atomic metals as highly active and selective electrocatalysts for NH3 fabrication via NO reduction. Phys Chem Chem Phys 2020; 22:22627-22634. [DOI: 10.1039/d0cp03559a] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The VB-containing defective h-BN sheet is proved to be a feasible support for atomic transition-metal anchoring. In particular, we found the Cu@h-BN and Ni@h-BN are highly active and selective catalysts for NO electro-reduction to generate NH3.
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Affiliation(s)
- Peng-Fei Sun
- Key Laboratory for Macromolecular Science of Shaanxi Province
- School of Chemistry and Chemical Engineering
- Shaanxi Normal University
- Xi’an 710119
- China
| | - Wen-Liang Wang
- Key Laboratory for Macromolecular Science of Shaanxi Province
- School of Chemistry and Chemical Engineering
- Shaanxi Normal University
- Xi’an 710119
- China
| | - Xiang Zhao
- Department of Chemistry
- School of Science
- Xi’an Jiaotong University
- Xi’an 710049
- China
| | - Jing-Shuang Dang
- Key Laboratory for Macromolecular Science of Shaanxi Province
- School of Chemistry and Chemical Engineering
- Shaanxi Normal University
- Xi’an 710119
- China
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24
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Sun PF, Ma L, Ye BQ, Pei YY. Application of diffusion-weighted imaging combined with apparent diffusion coefficient in differential diagnosis between central neurocytoma and ependymoma. Neuroradiology 2019; 62:439-445. [PMID: 31853589 DOI: 10.1007/s00234-019-02342-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2019] [Accepted: 12/05/2019] [Indexed: 11/25/2022]
Abstract
PURPOSE Differential diagnosis between central neurocytoma and ependymoma is very important for making preoperative scheme. We explored the application of diffusion-weighted imaging (DWI) combined with apparent diffusion coefficient (ADC) in differential diagnosis between both. METHODS The data of preoperative MR plain and contrast-enhanced scan, DWI and ADC values of neoplastic solid parts from 18 cases with central neurocytoma and 19 cases with lateral ventricular ependymoma, were retrospectively analyzed. Mann-Whitney test was used for the comparison of ADC values between central neurocytoma and ependymoma. The application of ADC values in the differential diagnosis between central neurocytoma and ependymoma was evaluated by ROC curve. RESULTS The lesions showed hyperintensity-dominant mixed signal intensity on DWI and mean ADC was (0.65 ± 0.13) × 10-3 mm2/s in the 18 cases with central neurocytoma. In the 19 cases with ependymoma, 13 had hyperintensity-dominant mixed signal intensity on DWI and 6 had hypointensity-dominant mixed signal intensity on DWI, and mean ADC was (1.20 ± 0.23) × 10-3 mm2/s. The mean ADC value was significantly higher in the 19 cases with ependymoma than in the 18 cases with central neurocytoma (P < 0.001). The ADC of 0.87 × 10-3 mm2/s might be used as a threshold for differential diagnosis between central neurocytoma and ependymoma with an area under ROC curve of 0.98 ± 0.02 and a 95% confidence interval of 0.95-1.00. Its sensitivity, specificity, and accuracy were 90%, 100%, and 90%, respectively. CONCLUSION There is a certain overlap in MRI imaging features between central neurocytoma and ependymoma. DWI combined with ADC value can improve peoperative diagnostic accuracy.
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Affiliation(s)
- Peng-Fei Sun
- Department of Radiotherapy, Second Hospital Affiliated to Lanzhou University, No.82 Cuiyingmen, Chengguan District, Lanzhou, 730030, Gansu, China.
| | - Li Ma
- Department of Radiotherapy, Second Hospital Affiliated to Lanzhou University, No.82 Cuiyingmen, Chengguan District, Lanzhou, 730030, Gansu, China
| | - Bin-Qiang Ye
- Department of Radiotherapy, Second Hospital Affiliated to Lanzhou University, No.82 Cuiyingmen, Chengguan District, Lanzhou, 730030, Gansu, China
| | - Ya-Ya Pei
- Department of Radiotherapy, Second Hospital Affiliated to Lanzhou University, No.82 Cuiyingmen, Chengguan District, Lanzhou, 730030, Gansu, China
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25
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Li J, Zhou MT, Yang CW, Sun PF, Liu JL, Bao XH, Pan JW. Semideterministic Entanglement between a Single Photon and an Atomic Ensemble. Phys Rev Lett 2019; 123:140504. [PMID: 31702192 DOI: 10.1103/physrevlett.123.140504] [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] [Received: 03/19/2019] [Indexed: 06/10/2023]
Abstract
Entanglement between a single photon and a matter qubit is an indispensable resource for quantum repeater and quantum networks. With atomic ensembles, the entanglement creation probability is typically very low to inhibit high-order events. In this paper, we propose and experimentally realize a scheme that creates atom-photon entanglement with an intrinsic efficiency of 50%. We make use of Rydberg blockade to generate two collective excitations, lying in separate internal states. By introducing the momentum degree of freedom for the excitations, and interfering them via Raman coupling, we entangle the two excitations. Via retrieving one excitation, we create the entanglement between the polarization of a single photon and the momentum of the remaining atomic excitation, with a measured fidelity of 0.901(8). The retrieved optical field is verified to be genuine single photons. The realized entanglement may be employed to create entanglement between two distant nodes in a fully heralded way and with a much higher efficiency.
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Affiliation(s)
- Jun Li
- Hefei National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei, Anhui 230026, China and CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Ming-Ti Zhou
- Hefei National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei, Anhui 230026, China and CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Chao-Wei Yang
- Hefei National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei, Anhui 230026, China and CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Peng-Fei Sun
- Hefei National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei, Anhui 230026, China and CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Jian-Long Liu
- Hefei National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei, Anhui 230026, China and CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Xiao-Hui Bao
- Hefei National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei, Anhui 230026, China and CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Jian-Wei Pan
- Hefei National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei, Anhui 230026, China and CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
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26
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Zhang Y, Ta WW, Sun PF, Meng YF, Zhao CZ. Diagnostic and prognostic significance of serum miR-145-5p expression in glioblastoma. Int J Clin Exp Pathol 2019; 12:2536-2543. [PMID: 31934080 PMCID: PMC6949540] [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] [Received: 11/26/2018] [Accepted: 12/19/2018] [Indexed: 06/10/2023]
Abstract
MicroRNA-145-5p downregulation has been shown to play important roles in the oncogenesis and progression of many cancer types including glioblastoma (GBM). However, the potential role of serum miR-145-5p in the diagnosis and prognosis of glioblastoma (GBM) remains poorly known. This study was designed to explore the clinical significance of serum miR-145-5p in patients with GBM. Quantitative reverse transcription polymerase chain reaction (qRT-PCR) was carried out to measure the serum levels of miR-145-5p in 117 GBM patients, 52 grade I/II glioma patients and 50 healthy volunteers. The associations between serum miR-145-5p level and the clinical variables as well as prognosis were analyzed. The bioinformatic analysis of the downstream targets of miR-145-5p was also performed. Compared to grade I/II glioma patients and healthy controls, serum miR-145-5p levels were significantly decreased in GBM patients. In addition, the receiver operating characteristic (ROC) analysis demonstrated that serum miR-145-5p might be a reliable diagnostic marker of GBM with an AUC of 0.895, combing with 84.6% sensitivity and 78.0% specificity. Low serum miR-145-5p level had significant correlation with aggressive clinicopathological parameters. Moreover, the Kaplan-Meier curve revealed that patients in the high serum miR-145-5p group survived significantly longer than those in the low serum miR-145-5p group. Multivariate analysis confirmed that serum miR-145-5p expression was an independent prognostic indicator for overall survival. The bioinformatic analysis revealed that many downstream genes and pathways that miR-145-5p regulated were closely associated with the initiation and development of cancer. Taken together, decreased serum miR-145-5p is a promising diagnostic and prognostic biomarker for GBM.
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Affiliation(s)
- Yao Zhang
- Department of Radiotherapy, The Second Hospital of Lanzhou UniversityLanzhou, Gansu Province, China
| | - Wei-Wei Ta
- Department of Radiotherapy, The Second Hospital of Lanzhou UniversityLanzhou, Gansu Province, China
| | - Peng-Fei Sun
- Department of Radiotherapy, The Second Hospital of Lanzhou UniversityLanzhou, Gansu Province, China
| | - Yi-Fan Meng
- Health School, Lanzhou Modern Vocational CollegeLanzhou, Gansu Province, China
| | - Cheng-Zong Zhao
- Department of Radiotherapy, The Second Hospital of Lanzhou UniversityLanzhou, Gansu Province, China
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27
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Sun PF, Lang L, Shi W, Guo J. Acute transient thyroid swelling after core-needle biopsy. J Clin Ultrasound 2019; 47:219. [PMID: 30663062 DOI: 10.1002/jcu.22651] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/26/2018] [Revised: 09/08/2018] [Accepted: 09/24/2018] [Indexed: 06/09/2023]
Affiliation(s)
- Peng-Fei Sun
- Department of Ultrasound, Aerospace Center Hospital, Beijing, China
| | - Lei Lang
- Department of Ultrasound, Aerospace Center Hospital, Beijing, China
| | - Wanrui Shi
- Department of Ultrasound, Aerospace Center Hospital, Beijing, China
| | - Jun Guo
- Department of Ultrasound, Aerospace Center Hospital, Beijing, China
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28
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Zhi QQ, Yan QH, Wang Q, Sun PF, Zhou HY, He ZM. Purification and characterization of two grandiuvarones from Desmos chinensis leaves and their antimicrobial activities. Nat Prod Res 2019; 34:1105-1112. [PMID: 30638070 DOI: 10.1080/14786419.2018.1550762] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
A novel aromatic compound, grandiuvarone B (5-acetoxy-3-benzoyloxymethyl-5H-oxepin-4-one), along with a known compound grandiuvarone A (5-acetoxy-6-benzoyloxymethyl-5H-oxepin-4-one) were isolated from methanol extracts of Desmos chinensis leaves. Their structures were determined by various spectroscopic techniques including nuclear magnetic resonance (NMR), high-resolution electrospray ionisation mass spectrometry (HR-ESI-MS) and circular dichroism (CD). Grandiuvarone A and grandiuvarone B are isomers and the S configuration of grandiuvarone B was reported for the first time. We then determined their antifungal activity against Aspergillus flavus. Results revealed that grandiuvarone B exhibited better antifungal activity against A. flavus, with MIC values of 0.01 mg/mL compared to grandiuvarone A (MIC values of 0.02 mg/mL). In the presence of each active compound at 160 μg/g of aquafeed, A. flavus growth was completely inhibited. Grandiuvarone B also showed antibacterial activity against the plant pathogen Ralstonia solanacearum.
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Affiliation(s)
- Qing-Qing Zhi
- The Guangdong Province Key Laboratory for Aquatic Economic Animals, School of Life Science, Sun Yat-sen University, Guangzhou, China
| | - Quan-Hong Yan
- The Guangdong Province Key Laboratory for Aquatic Economic Animals, School of Life Science, Sun Yat-sen University, Guangzhou, China.,Chemical Drugs Department, Guangdong Institute for Food and Drug Control, Guangzhou, China
| | - Qiong Wang
- The Guangdong Province Key Laboratory for Aquatic Economic Animals, School of Life Science, Sun Yat-sen University, Guangzhou, China
| | - Peng-Fei Sun
- The Guangdong Province Key Laboratory for Aquatic Economic Animals, School of Life Science, Sun Yat-sen University, Guangzhou, China
| | - Hai-Yun Zhou
- Instrumental and Analysis Research Center, Sun Yat-sen University, Guangzhou, China
| | - Zhu-Mei He
- The Guangdong Province Key Laboratory for Aquatic Economic Animals, School of Life Science, Sun Yat-sen University, Guangzhou, China
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Bai J, Tian YZ, Sun PF, Bai XY, Li KR, Zhao YG. [Effect of Silver Nanoparticles on Denitrification and Functional Gene Abundances of Sediment in Dagu River Estuary and Northwest of Jiaozhou Bay]. Huan Jing Ke Xue 2018; 39:4956-4963. [PMID: 30628217 DOI: 10.13227/j.hjkx.201803002] [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: 06/09/2023]
Abstract
The influence of silver nanoparticles (AgNPs) on the denitrification performance, enzyme activity, and functional gene relative abundances of sediment was investigated based on the methods of laboratory simulation incubation in the Dagu River estuary and bay area in the northwest of Jiaozhou Bay. The different dosages of AgNPs (i.e., 0, 135, and 1350 mg·L-1 in final concentration) was added to the incubation system containing surface sediments and in-situ bottom water. During six days' incubation, the concentrations of NO3- and NO2-, NO3-, and NO2- reductases activity, and relative abundances of narG and nirS genes were measured to explore the effects of AgNPs on denitrification and its mechanism. The results showed that AgNPs significantly inhibited NO3- and NO2- reductive capacity, NO3- and NO2- reductase activity, and narG and nirS gene relative abundances, which led to aggravated accumulation of NO2-. The inhibition of NO2- reductase was significantly greater than that of NO3- reductase, and the inhibition of the nirS gene was significantly higher than that of the narG gene. The inhibition of NO3- reduction was mainly ascribed to the inhibition of functional genes, but the inhibition of NO2- reduction was mainly due to the inhibition of reductase activity. The inhibition of NO3- and NO2- reductive capacity, NO3- reductase activity, and narG and nirS gene relative abundances in the northwest of Jiaozhou Bay was significantly higher than that in the Dagu River estuary.
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Affiliation(s)
- Jie Bai
- College of Environmental Science and Engineering, Ocean University of China, Qingdao 266100, China
- Key Laboratory of Marine Environmental Science and Ecology, Ministry of Education, Qingdao 266100, China
| | - Yan-Zhao Tian
- College of Environmental Science and Engineering, Ocean University of China, Qingdao 266100, China
| | - Peng-Fei Sun
- College of Environmental Science and Engineering, Ocean University of China, Qingdao 266100, China
| | - Xiao-Yan Bai
- College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China
| | - Kui-Ran Li
- College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China
| | - Yang-Guo Zhao
- College of Environmental Science and Engineering, Ocean University of China, Qingdao 266100, China
- Key Laboratory of Marine Environmental Science and Ecology, Ministry of Education, Qingdao 266100, China
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30
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Wang XJ, Jing B, Sun PF, Yang CW, Yu Y, Tamma V, Bao XH, Pan JW. Experimental Time-Resolved Interference with Multiple Photons of Different Colors. Phys Rev Lett 2018; 121:080501. [PMID: 30192608 DOI: 10.1103/physrevlett.121.080501] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2018] [Revised: 06/26/2018] [Indexed: 06/08/2023]
Abstract
Interference of multiple photons via a linear-optical network has profound applications for quantum foundation, quantum metrology, and quantum computation. Particularly, a boson sampling experiment with a moderate number of photons becomes intractable even for the most powerful classical computers. Scaling up from small-scale experiments requires highly indistinguishable single photons, which may be prohibited for many physical systems. Here we report a time-resolved multiphoton interference experiment by using photons not overlapping in their frequency spectra from three atomic-ensemble quantum memories. Time-resolved measurement enables us to observe nonclassical multiphoton correlation landscapes, which agree well with theoretical calculations. Symmetries in the landscapes are identified to reflect symmetries of the optical network. Our experiment can be further extended to realize boson sampling with many photons and plenty of modes, which thus may provide a route towards quantum supremacy with nonidentical photons.
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Affiliation(s)
- Xu-Jie Wang
- Hefei National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
- CAS Center for Excellence and Synergetic Innovation Center in Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
- CAS-Alibaba Quantum Computing Laboratory, Shanghai 201315, China
| | - Bo Jing
- Hefei National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
- CAS Center for Excellence and Synergetic Innovation Center in Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
- CAS-Alibaba Quantum Computing Laboratory, Shanghai 201315, China
| | - Peng-Fei Sun
- Hefei National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
- CAS Center for Excellence and Synergetic Innovation Center in Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
- CAS-Alibaba Quantum Computing Laboratory, Shanghai 201315, China
| | - Chao-Wei Yang
- Hefei National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
- CAS Center for Excellence and Synergetic Innovation Center in Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
- CAS-Alibaba Quantum Computing Laboratory, Shanghai 201315, China
| | - Yong Yu
- Hefei National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
- CAS Center for Excellence and Synergetic Innovation Center in Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
- CAS-Alibaba Quantum Computing Laboratory, Shanghai 201315, China
| | - Vincenzo Tamma
- School of Mathematics and Physics, University of Portsmouth, Portsmouth PO1 3QL, United Kingdom
- Institute of Cosmology & Gravitation, University of Portsmouth, Portsmouth PO1 3FX, United Kingdom
| | - Xiao-Hui Bao
- Hefei National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
- CAS Center for Excellence and Synergetic Innovation Center in Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
- CAS-Alibaba Quantum Computing Laboratory, Shanghai 201315, China
| | - Jian-Wei Pan
- Hefei National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
- CAS Center for Excellence and Synergetic Innovation Center in Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
- CAS-Alibaba Quantum Computing Laboratory, Shanghai 201315, China
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Sun PF, Tian T, Chen LN, Fu RG, Xu SS, Ai H, Wang B, Zhang J, Si RY, Chai Z, Cooper ME, Ren ST. Ultrasound Combined with Microbubbles Enhances the Effects of Methylprednisolone in Lipopolysaccharide-Induced Human Mesangial Cells. J Pharmacol Exp Ther 2018; 365:476-484. [DOI: 10.1124/jpet.117.246223] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2017] [Accepted: 03/09/2018] [Indexed: 01/17/2023] Open
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32
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Sun PF, Ding GC, Zhang MY, He SN, Gao Y, Wang JH. Prevalence of Congenital Heart Disease among Infants from 2012 to 2014 in Langfang, China. Chin Med J (Engl) 2018; 130:1069-1073. [PMID: 28469102 PMCID: PMC5421177 DOI: 10.4103/0366-6999.204923] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
Background: Congenital heart disease (CHD) is the most common congenital malformations with high mortality and morbidity. The prevalence of CHD reported previously ranged from 4 per 1000 live births to 50 per 1000 live births. In this cross-sectional study, we aimed to document the prevalence of CHD in Langfang district of Hebei Province, China by analyzing data collected by hospitals located in 11 the counties of the district, as supported by a public health campaign. Methods: A total of 67,718 consecutive 3-month-old infants were included from July 19, 2012 to July 18, 2014. Structural abnormalities were diagnosed based on echocardiography findings, including two-dimensional and color Doppler echocardiography results. Results: Of the 67,718 infants, 1554 were found to have cardiac structural abnormalities. The total prevalence of CHD was 22.9 per 1000 live births, a value significantly higher than the previously reported prevalence of 8 cases per 1000 live births. The top five most common cardiac abnormalities were as follows: atrial septal defect (ASD, 605 cases, 8.93‰); ventricular septal defect (550 cases, 8.12‰); patent ductus arteriosus (228 cases, 3.37‰); pulmonary stenosis (66 cases, 0.97‰); and tetralogy of Fallot (32 cases, 0.47‰). The CHD prevalence differed by gender in this study (χ2 = 23.498, P < 0.001), and the majority of ASD cases were females. Regional differences in prevalence were also found (χ2 = 24.602, P < 0.001); a higher prevalence was found in urban areas (32.2 cases per 1000 live births) than in rural areas (21.1 cases per 1000 live births). There was a significant difference in the prevalence of CHD in preterm versus full-term infants (χ2 = 133.443, P < 0.001). Prevalence of CHD in infants of maternal aged 35 years or over was significantly higher (χ2 = 86.917, P < 0.001). Conclusions: The prevalence of CHD in Langfang district was within the range reported using echocardiography. Echocardiography can be used to early diagnose the CHD.
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Affiliation(s)
- Peng-Fei Sun
- Department of Ultrasound, Aerospace Center Hospital, Beijing 100049, China
| | - Gui-Chun Ding
- Department of Ultrasound, PLA Army General Hospital, Beijing 100700, China
| | - Min-Yu Zhang
- Department of Ultrasound, PLA Army General Hospital, Beijing 100700, China
| | - Sheng-Nan He
- Department of Ultrasound, PLA Army General Hospital, Beijing 100700, China
| | - Yu Gao
- Department of Ultrasound, PLA Army General Hospital, Beijing 100700, China
| | - Jian-Hua Wang
- Department of Ultrasound, PLA Army General Hospital, Beijing 100700, China
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Sun PF. Variation in the ability of fungi in the extrafloral nectar of Mallotus paniculatus to attract ants as plant defenders. MYCOSPHERE 2018. [DOI: 10.5943/mycosphere/9/2/2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
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Ren ST, Zhang XM, Sun PF, Sun LJ, Guo X, Tian T, Zhang J, Guo QY, Li X, Guo LJ, Che J, Wang B, Zhang H. Intranasal Immunization Using Mannatide as a Novel Adjuvant for an Inactivated Influenza Vaccine and Its Adjuvant Effect Compared with MF59. PLoS One 2017; 12:e0169501. [PMID: 28052136 PMCID: PMC5215226 DOI: 10.1371/journal.pone.0169501] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2016] [Accepted: 12/19/2016] [Indexed: 11/19/2022] Open
Abstract
Intranasal vaccination is more potent than parenteral injection for the prevention of influenza. However, because the poor efficiency of antigen uptake across the nasal mucosa is a key issue, immunostimulatory adjuvants are essential for intranasal vaccines. The immunomodulator mannatide or polyactin (PA) has been used for the clinical treatment of impaired immunity in China, but its adjuvant effect on an inactivated trivalent influenza vaccine (ITIV) via intranasal vaccination is unclear. To explore the adjuvant effect of PA, an inactivated trivalent influenza virus with or without PA or MF59 was instilled intranasally once a week in BALB/c mice. Humoral immunity was assessed by both the ELISA and hemagglutination inhibition (HI) methods using antigen-specific antibodies. Splenic lymphocyte proliferation and the IFN-γ level were measured to evaluate cell-mediated immunity. The post-vaccination serum HI antibody geometric mean titers (GMTs) for the H1N1 and H3N2 strains, antigen-specific serum IgG and IgA GMTs, mucosal SIgA GMT, splenic lymphocyte proliferation, and IFN-γ were significantly increased in the high-dose PA-adjuvanted vaccine group. The seroconversion rate and the mucosal response for the H3N2 strain were significantly elevated after high-dose PA administration. These adjuvant effects of high-dose PA for the influenza vaccine were comparable with those of the MF59 adjuvant, and abnormal signs or pathological changes were not found in the evaluated organs. In conclusion, PA is a novel mucosal adjuvant for intranasal vaccination with the ITIV that has safe and effective mucosal adjuvanticity in mice and successfully induces both serum and mucosal antibody responses and a cell-mediated response.
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Affiliation(s)
- Shu-Ting Ren
- Department of Pathology, School of Basic Medical Sciences, Xi’an Jiaotong University Health Science Center, Xi’an, China
- * E-mail: (STR); (HZ); (BW)
| | - Xue-Mei Zhang
- No. 6 Vaccine Workshop, Changchun Institute of Biological Products Co., Ltd., Changchun, China
| | - Peng-Fei Sun
- Department of Pathology, School of Basic Medical Sciences, Xi’an Jiaotong University Health Science Center, Xi’an, China
- Department of Pathology, Xi’an City Center Hospital, Xi’an, China
| | - Li-Juan Sun
- Reagent R&D Dep. Scientific Research Management Center, Capital Bio Technology, Beijing, China
| | - Xue Guo
- No. 6 Vaccine Workshop, Changchun Institute of Biological Products Co., Ltd., Changchun, China
| | - Tian Tian
- Department of Pathology, School of Basic Medical Sciences, Xi’an Jiaotong University Health Science Center, Xi’an, China
| | - Jian Zhang
- Department of Pathology, School of Basic Medical Sciences, Xi’an Jiaotong University Health Science Center, Xi’an, China
| | - Qi-Yuan Guo
- No. 6 Vaccine Workshop, Changchun Institute of Biological Products Co., Ltd., Changchun, China
| | - Xue Li
- No. 6 Vaccine Workshop, Changchun Institute of Biological Products Co., Ltd., Changchun, China
| | - Li-Jun Guo
- Changchun Institute of Biological Products Co., Ltd., Changchun, China
| | - Jin Che
- Therapeutic Vaccines Engineering Center of Shaanxi Province, Xi’an Jiaotong University Health Science Center, Xi’an, China
| | - Bing Wang
- Department of Pathology, School of Basic Medical Sciences, Xi’an Jiaotong University Health Science Center, Xi’an, China
- Therapeutic Vaccines Engineering Center of Shaanxi Province, Xi’an Jiaotong University Health Science Center, Xi’an, China
- * E-mail: (STR); (HZ); (BW)
| | - Hui Zhang
- Department of Pharmacy, Xi’an Medical University Health Science Center, Xi’an, China
- * E-mail: (STR); (HZ); (BW)
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Tan S, Miao LY, Cui LG, Sun PF, Qian LX. Value of Shear Wave Elastography Versus Contrast-Enhanced Sonography for Differentiating Benign and Malignant Superficial Lymphadenopathy Unexplained by Conventional Sonography. J Ultrasound Med 2017; 36:189-199. [PMID: 27925679 DOI: 10.7863/ultra.16.01014] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2016] [Accepted: 03/30/2016] [Indexed: 06/06/2023]
Abstract
OBJECTIVES This study aimed to compare the efficacy of shear wave elastography (SWE) and contrast-enhanced sonography in the differential diagnosis of superficial lymphadenopathy with abnormal imaging findings, which could not be otherwise confirmed by conventional sonography. METHODS Forty-two enlarged superficial lymph nodes in 42 patients who met the screening criteria for this study were evaluated by both contrast-enhanced sonography and SWE. All lymph nodes underwent both methods using biopsy pathologic findings as a reference standard. RESULTS The maximum elastic modulus, mean elastic modulus, and standard deviation of the elastic modulus were the main distinguishing features on SWE; they were significantly higher in malignant lesions than benign ones. The threshold value for the maximum elastic modulus was set at 37.9 kPa, and the sensitivity, specificity, and accuracy of differential diagnosis of superficial lymph nodes were 81.8%, 80.0%, and 81.0%, respectively. The diagnosis of benignity and malignancy by this index was statistically significant (P < .001). The lymph nodes were divided into benign and malignant groups according to different types based on the degree and range of intensity on contrast-enhanced sonography: intense or moderate homogeneous enhancement (n = 26) and heterogeneous, low homogeneous, or absent enhancement (n = 16). The sensitivity, specificity, and accuracy of contrast-enhanced sonography were 27.3%, 50.0%, and 38.1%. There was no statistically significant difference in the values between the benign and malignant groups (χ2 = 2.295; P = .130). CONCLUSIONS Compared with contrast-enhanced sonography, SWE has better diagnostic value and efficiency in differentiation of superficial lymph nodes unexplained by conventional sonography. When conventional sonography cannot differentiate malignant superficial lymph nodes from benign ones, SWE is a useful adjunctive tool for assessment of lymph nodes.
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Affiliation(s)
- Shi Tan
- Department of Ultrasound, Beijing Friendship Hospital, Capital Medical University, Beijing, China
- Department of Ultrasound, Peking University Third Hospital, Beijing, China
| | - Li-Ying Miao
- Department of Ultrasound, Peking University Third Hospital, Beijing, China
| | - Li-Gang Cui
- Department of Ultrasound, Peking University Third Hospital, Beijing, China
| | - Peng-Fei Sun
- Department of Ultrasound, Peking University Third Hospital, Beijing, China
| | - Lin-Xue Qian
- Department of Ultrasound, Beijing Friendship Hospital, Capital Medical University, Beijing, China
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Abstract
BACKGROUND Hamstring (HS) autograft and bone-patellar tendon-bone allograft are the most common choice for reconstruction of anterior cruciate ligament (ACL). There was a little report about the clinical outcome and difference of arthroscopic ACL reconstruction using allograft and autograft. This study aimed to compare the clinical outcome of autograft and allograft reconstruction for ACL tears. METHODS A total of 106 patients who underwent surgery because of ACL tear were included in this study. The patients were randomly divided into two groups, including 53 patients in each group. The patients in group I underwent standard ACL reconstruction with HS tendon autografts, while others in group II underwent reconstruction with bone-patellar tendon-bone allograft. All the patients were followed up and analyzed; the mean follow-up was 81 months (range: 28-86 months). Clinical outcomes were evaluated using the International Knee Documentation Committee (IKDC), Lysholm scores, physical instability tests, and patient satisfaction questionnaires. The complication rates of both groups were compared. Tibial and femoral tunnel widening were assessed using lateral and anteroposterior radiographs. RESULTS At the end of follow-up, no significant differences were found between the groups in terms of IKDC, Lysholm scores, physical instability tests, patient satisfaction questionnaires, and incidences of arthrofibrosis. Tibial and femoral tunnel widening was less in the HS tendon autografts. This difference was more significant on the tibial side. CONCLUSIONS In the repair of ACL tears, allograft reconstruction is as effective as the autograft reconstruction, but the allograft can lead to more tunnel widening evidently in the tibial tunnel, particularly.
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Affiliation(s)
| | - Peng-Fei Sun
- Department of Orthopedics, Qilu Hospital of Shandong University, Jinan, Shandong 250012, China
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Ren ST, Shen S, He XY, Liao YR, Sun PF, Wang B, Zhao WB, Han SP, Wang YL, Tian T. The Effect of Docetaxel-Loaded Micro-Bubbles Combined with Low-Frequency Ultrasound in H22 Hepatocellular Carcinoma-Bearing Mice. Ultrasound Med Biol 2016; 42:549-560. [PMID: 26651601 DOI: 10.1016/j.ultrasmedbio.2015.10.008] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2015] [Revised: 09/18/2015] [Accepted: 10/14/2015] [Indexed: 06/05/2023]
Abstract
A novel lipid micro-bubble (MB) loaded with docetaxel (DOC-MB) was investigated in a previous study. However, its anti-tumor effects and mechanism of action in combination with low-frequency ultrasound (LFUS) in vivo are still unclear. DOC-MBs containing 5.0 mg of DOC were prepared by lyophilization with modification via ultrasonic emulsification. Then, the effects of DOC-MBs combined with LFUS on tumor growth, proliferating cell nuclear antigen (PCNA) expression and cell apoptosis, as well as local DOC delivery, were investigated in H22 hepatocellular carcinoma (HCC)-bearing mice. Compared with the previously prepared DOC-MBs (1.6 mg of DOC loaded), the encapsulation efficiency (81.2% ± 3.89%) and concentration ([7.94 ± 0.04] × 10(9) bubbles/mL) of the DOC-MBs containing 5.0 mg of DOC were higher, but the bubble size (1.368 ± 0.004 μm) was smaller. After treatment with the DOC-MBs and LFUS, the H22 HCC growth inhibition rate was significantly increased, PCNA expression in tumor tissue was significantly inhibited and local release of DOC was induced. In conclusion, new DOC-MBs containing 5.0 mg of DOC were successfully prepared with a high encapsulation efficiency and superior bubble size and concentration, and their combination with LFUS significantly enhanced the anti-tumor effect of DOC in H22 HCC-bearing mice by inhibiting tumor cell proliferation and increasing local drug delivery.
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Affiliation(s)
- Shu-Ting Ren
- Department of Pathology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, China.
| | - Shu Shen
- Department of Pathology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, China; Second Division of In Vitro Diagnostic Reagents, National Institute of Food and Drug Control, Beijing, China
| | - Xin-Ying He
- Department of Pathology, Xi'an Medical University, Xi'an, China
| | - Yi-Ran Liao
- Department of Pathology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, China
| | - Peng-Fei Sun
- Department of Pathology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, China
| | - Bing Wang
- Department of Pathology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, China; Therapeutic Vaccines Engineering Center of Shaanxi Province, Xi'an Jiaotong University Health Science Center, Xi'an, China
| | - Wen-Bao Zhao
- Department of Pathology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, China
| | - Shui-Ping Han
- Department of Pathology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, China
| | - Yi-Li Wang
- Department of Pathology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, China; Institute of Cancer Research, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, China
| | - Tian Tian
- Department of Pathology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, China
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Sun PF, Lin H, Wang G, Lu LL, Zhao YH. Preparation of a new-style composite containing a key bioflocculant produced by Pseudomonas aeruginosa ZJU1 and its flocculating effect on harmful algal blooms. J Hazard Mater 2015; 284:215-21. [PMID: 25463236 DOI: 10.1016/j.jhazmat.2014.11.025] [Citation(s) in RCA: 18] [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: 07/08/2014] [Revised: 11/11/2014] [Accepted: 11/19/2014] [Indexed: 05/22/2023]
Abstract
A novel composite consisting of clay, bioflocculant, and inorganic flocculant was designed, and its flocculating effect on harmful algal blooms (HABs) was studied in this study. The extracellular polymeric substances (EPS), produced with a yield of 3.58±0.11 g/L by a newly isolated Pseudomonas aeruginosa ZJU1, was indicated to be a key component in the composite. The components and functional groups of the EPS were analyzed, and it showed that polysaccharides, proteins, and nucleic acids are the main components; polar functional groups in the EPS are responsible for its flocculating activity. The novel composite was optimized by the response surface methodology and after optimization, the optical components and contents of the composite were Kaolin 2.38 g/L, CaCl2 0.28 g/L, KAl(SO4)2 0.09 g/L, and EPS 1.75 mg/L. The flocculating rates of the composite were tested, and it could rapidly reach 100±0.13% within 2 min when OD680 of Microcystis aeruginosa was 0.1; it could reach 100±0.08% within 5 min for OD680 of M. aeruginosa in HABs up to 1.0. These results suggest that the novel composite will be a highly efficient material for the treatment of HABs caused by M. aeruginosa.
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Affiliation(s)
- Peng-Fei Sun
- College of Life Sciences, Zhejiang University, 310058 Hangzhou, Zhejiang, PR China
| | - Hui Lin
- Institute of Environment Resource and Soil Fertilizer, Zhejiang Academy of Agriculture Science, Hangzhou 310021, PR China
| | - Guan Wang
- College of Life Sciences, Zhejiang University, 310058 Hangzhou, Zhejiang, PR China
| | - Li-Ling Lu
- College of Life Sciences, Zhejiang University, 310058 Hangzhou, Zhejiang, PR China
| | - Yu-Hua Zhao
- College of Life Sciences, Zhejiang University, 310058 Hangzhou, Zhejiang, PR China.
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Zhao M, Sun PF, Du LN, Wang G, Jia XM, Zhao YH. Biodegradation of methyl red by Bacillus sp. strain UN2: decolorization capacity, metabolites characterization, and enzyme analysis. Environ Sci Pollut Res Int 2014; 21:6136-6145. [PMID: 24474566 DOI: 10.1007/s11356-014-2579-3] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2013] [Accepted: 01/20/2014] [Indexed: 06/03/2023]
Abstract
Azo dyes are recalcitrant and refractory pollutants that constitute a significant menace to the environment. The present study is focused on exploring the capability of Bacillus sp. strain UN2 for application in methyl red (MR) degradation. Effects of physicochemical parameters (pH of medium, temperature, initial concentration of dye, and composition of the medium) were studied in detail. The suitable pH and temperature range for MR degradation by strain UN2 were respectively 7.0-9.0 and 30-40 °C, and the optimal pH value and temperature were respectively 8.0 and 35 °C. Mg(2+) and Mn(2+) (1 mM) were found to significantly accelerate the MR removal rate, while the enhancement by either Fe(3+) or Fe(2+) was slight. Under the optimal degradation conditions, strain UN2 exhibited greater than 98 % degradation of the toxic azo dye MR (100 ppm) within 30 min. Analysis of samples from decolorized culture flasks confirmed biodegradation of MR into two prime metabolites: N,N'dimethyl-p-phenyle-nediamine and 2-aminobenzoic acid. A study of the enzymes responsible for the biodegradation of MR, in the control and cells obtained during (10 min) and after (30 min) degradation, showed a significant increase in the activities of azoreductase, laccase, and NADH-DCIP reductase. Furthermore, a phytotoxicity analysis demonstrated that the germination inhibition was almost eliminated for both the plants Triticum aestivum and Sorghum bicolor by MR metabolites at 100 mg/L concentration, yet the germination inhibition of parent dye was significant. Consequently, the high efficiency of MR degradation enables this strain to be a potential candidate for bioremediation of wastewater containing MR.
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Affiliation(s)
- Ming Zhao
- College of Life Sciences, Zhejiang University, 310058, Hangzhou, Zhejiang, People's Republic of China
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Yi QT, Sun PF, Xie K, Qu XJ, Wang TT. [Impact of regional water chemistry on the phosphorus isothermal adsorption of the sediments in three subsidence waters of the Huainan Mine areas]. Huan Jing Ke Xue 2013; 34:3894-3903. [PMID: 24364308] [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: 06/03/2023]
Abstract
Three research sites of subsidence waters, including Panji (PJ), Guqiao (GQ) and Xieqiao (XQ) located in the Huainan "Panxie" Mine Area have been selected to address their phosphorus (P) adsorption behavior in the sediments considering the site-specific regional water chemistry. The P isothermal adsorption was measured in pure water and four different types of ion solutions, prepared through additions of sodium chloride (NaCl), calcium chloride (CaCl2), sodium bicarbonate (NaHCO3), and a mixture of sodium bicarbonate and calcium chloride (NaHCO3 + CaCI2). The first four settings were studied to analyze the individual impact of each solution on P adsorption while the last one was to study their combined effect. In general, Ca2 + could enhance P adsorption on sediment surfaces while weakly alkaline conditions caused by bicarbonates were unfavorable for its adsorption. As a comprehensive effect, the positive effect of the former was greater than the negative effect of the latter. The zero equilibrium phosphorus concentrations (EPC) in the three sites were 0. 059, 0. 032 and 0. 040 mg.L-1, respectively, showing trends of P releasing to the overlying water column. The site of PJ showed greater P releasing potential than those at the GQ and XQ sites, probably due to its higher nutrient level. Overall, P releasing risks in the researched sediments are weaker than those in eutrophic lakes, while they are very similar to lakes with lower trophic levels, because of their unique sedimentary environments from inundated agricultural soils.
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Affiliation(s)
- Qi-Tao Yi
- School of Earth and Environment, Anhui University of Science and Technology, Huainan 232001, China.
| | - Peng-Fei Sun
- School of Earth and Environment, Anhui University of Science and Technology, Huainan 232001, China
| | - Kai Xie
- School of Earth and Environment, Anhui University of Science and Technology, Huainan 232001, China
| | - Xi-Jie Qu
- School of Earth and Environment, Anhui University of Science and Technology, Huainan 232001, China
| | - Ting-Ting Wang
- School of Earth and Environment, Anhui University of Science and Technology, Huainan 232001, China
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Abstract
We prospectively evaluated a consecutive series of 56 patients with unicompartmental knee arthritis who underwent unicompartmental knee replacement or total knee arthroplasty and received an average of 52months of follow-up. These patients were enrolled in a prospective randomized clinical trial. There were no significant differences in the pre-operative parameters of both groups. All the patients were followed up and evaluated preoperatively and yearly, the data was collected and statistical analysis was performed. At an average of 52months after surgery the mean Knee Society score was 80.5 (range: 70-100) and 78.9 (range: 70-87) for Unicompartmental knee replacement and total knee arthroplasty, mean range of postoperative motion for TKA is 115(0)±4(0) and 117(0)±7(0) for the group of UKA, with the numbers available, the difference between the two groups could not be shown to be significant. The average operation time of UKA and TKA is 68.8min and 81.5min(p<0.01). Blood drainage after operation had a significant difference between the two groups (p<0.01). Seven cases of UKA were converted to total knee arthroplasty - all of them within the first 2years of starting the procedure and all of them in relatively young patients. From the study we concluded that mobile bearing UKA can obtain similar clinical effect with TKA by surgeons who have the adequate training and experience. After the learning curve UKA should be considered the primary treatment option for unicompartmental knee arthritis.
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Affiliation(s)
- Peng-Fei Sun
- Department of Orthopedics, Qilu Hospital of Shandong University, Jinan, 250012, China.
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Jia YH, Sun PF. Preliminary evaluation of posterior dynamic lumbar stabilization in lumbar degenerative disease in Chinese patients. Chin Med J (Engl) 2012; 125:253-256. [PMID: 22340555] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/31/2023] Open
Abstract
BACKGROUND There has been some controversy related to the use of the Wallis system, rather than disc fusion in the treatment of patients with degenerative spine disease. Furthermore, there are no reports concerning the application of this dynamic stabilization system in Chinese patients, who have a slightly different lifestyle with Western patients. The aim of this study was to assess the safety and efficacy of the dynamic stabilization system in the treatment of degenerative spinal diseases in Chinese patients. METHODS The clinical outcomes of 20 patients with lumbar degenerative disease treated by posterior decompression with the Wallis posterior dynamic lumbar stabilization implant were studied. All of the patients completed the visual analogue scale and the Chinese version of the Oswestry Disability Index. The following radiologic parameters were measured in all patients: global lordotic angles and segmental lordotic angles (stabilized segments, above and below adjacent segments). The range of motion was then calculated. RESULTS Nineteen patients (95%) were available for follow-up. The mean follow-up period was (27.25 ± 5.16) months (range 16 - 35 months). The visual analogue scale decreased from 8.55 ± 1.21 to 2.20 ± 1.70 (P < 0.001), and the mean score on the Chinese version of the Oswestry Disability Index was improved from 79.58% ± 15.93% to 22.17% ± 17.24% (P < 0.001). No significant changes were seen in the range of motion at the stabilized segments (P = 0.502) and adjacent segments (above, P = 0.453; below, P = 0.062). The good to excellent result was 94.4% at the latest follow-up. No complications related to the use of the Wallis posterior dynamic lumbar stabilization occurred. CONCLUSIONS It was found to be both easy and safe to use the Wallis posterior dynamic lumbar stabilization implant in the treatment of degenerative lumbar disease, and the early therapeutic effectiveness is good. The Wallis system provides an alternative method for the treatment of lumbar degenerative disease.
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Affiliation(s)
- Yu-Hua Jia
- Department of Orthopedics, Qilu Hospital of Shandong University, Jinan, Shandong 250012, China
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Sun PF, Xiao XS, Li HM, Yu H, Liu SY. [Radiologic-pathologic study on bronchial changes in peripheral solitary pulmonary lesions]. Ai Zheng 2008; 27:1293-1296. [PMID: 19079996] [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: 05/27/2023]
Abstract
BACKGROUND & OBJECTIVE At present, the diagnosis and differential diagnosis of peripheral solitary pulmonary lesions is a hot-spot in researches of thoracic imageology, and bronchial changes is the morphologic basis of peripheral solitary pulmonary nodules, especially peripheral lung cancer. This study was to investigate the value of multi-slice CT (MSCT) in evaluating bronchial changes of peripheral solitary pulmonary lesions through a radiologic-pathologic study. METHODS Thirty patients with solitary pulmonary lesions were scanned using MSCT. Image data were reconstructed to display bronchial changes, and were compared with the results of postoperative pathology. RESULTS CT bronchial sign was positive in all patients. The bronchus on pathologic section was showed in 19 (63.3%) patients, but not in 11 (36.7%) patients. Among the 15 patients with bronchial cutoff and bronchial wall thickening on CT, 11 lung cancer patients had bronchial wall invasion on pathology. Among the seven patients with normal bronchial wall on CT, five lung cancer patients had no bronchial wall invasion on pathology. Among the five lung cancer patients with air bronchogram, one had bronchial wall invasion, and one showed bronchial epithelial hyperplasia. Among the three patients with bronchus distributed at the periphery of the lesion, one lung cancer patient had bronchial wall invasion on pathology. CONCLUSION MSCT can evaluate accurately the bronchial changes of peripheral solitary pulmonary lesions, and may be helpful for diagnosis and differential diagnosis of solitary pulmonary lesions.
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Affiliation(s)
- Peng-Fei Sun
- Department of Medical Imaging, Changzheng Hospital, Second Military Medical University, Shanghai, 200003, PR China
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Ockenhouse CF, Sun PF, Lanar DE, Wellde BT, Hall BT, Kester K, Stoute JA, Magill A, Krzych U, Farley L, Wirtz RA, Sadoff JC, Kaslow DC, Kumar S, Church LW, Crutcher JM, Wizel B, Hoffman S, Lalvani A, Hill AV, Tine JA, Guito KP, de Taisne C, Anders R, Ballou WR. Phase I/IIa safety, immunogenicity, and efficacy trial of NYVAC-Pf7, a pox-vectored, multiantigen, multistage vaccine candidate for Plasmodium falciparum malaria. J Infect Dis 1998; 177:1664-73. [PMID: 9607847 DOI: 10.1086/515331] [Citation(s) in RCA: 177] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Candidate malaria vaccines have failed to elicit consistently protective immune responses against challenge with Plasmodium falciparum. NYVAC-Pf7, a highly attenuated vaccinia virus with 7 P. falciparum genes inserted into its genome, was tested in a phase I/IIa safety, immunogenicity, and efficacy vaccine trial in human volunteers. Malaria genes inserted into the NYVAC genome encoded proteins from all stages of the parasite's life cycle. Volunteers received three immunizations of two different dosages of NYVAC-Pf7. The vaccine was safe and well tolerated but variably immunogenic. While antibody responses were generally poor, cellular immune responses were detected in >90% of the volunteers. Of the 35 volunteers challenged with the bite of 5 P. falciparum-infected Anopheles mosquitoes, 1 was completely protected, and there was a significant delay in time to parasite patency in the groups of volunteers who received either the low or high dose of vaccine compared with control volunteers.
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Affiliation(s)
- C F Ockenhouse
- Department of Immunology, Walter Reed Army Institute of Research, Washington, DC 20307, USA.
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Abstract
In order to produce mAbs directed specifically against HLA-DR10 molecule, transfected mouse L cells, expressing the DRB1*1001 allele, were used to immunize C3H mice over a period of 4 weeks. Two mAbs, 2C12 and 4B6, derived from this fusion were found to recognize, with different affinity, polymorphic epitopes of DR10 that are shared with DR1, 3, 7, and 9. These mAbs were screened on a large panel of homozygous B lymphoblastoid cell lines using microlymphocytotoxicity and the results were confirmed by flow cytometry. The reactive pattern of 2C12 and 4B6 was compared to that of MP10 human mAb also recognizing the DR10 specificity in addition to DR1, 2 and 9. Based on serologic specificity and cellular absorption experiments, we conclude that the epitopes the murine and human mAbs respectively recognize on the DR10 molecule, are probably different.
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Affiliation(s)
- M P Pistillo
- Istituto Nazionale per la Ricerca sul Cancro, Genova, Italy
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Jiang ZQ, Sun PF, Ji YY, Yeh M, Kuroda K, Kamei M, Hashizume S. [The establishment of human anti-tetanus toxoid hybridomas with in vitro immunized human tonsil cells]. Shi Yan Sheng Wu Xue Bao 1992; 25:237-42. [PMID: 1476015] [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: 12/27/2022]
Abstract
Human tonsil cells in vitro immunized with tetanus toxoid were fused with human-mouse heteromyeloma line RF to generate human-mouse hybridomas. Hybridoma 891112-50 was cloned and 2 subclones (891112-50-3 and -4) were obtained. The secreted antibodies from the subclones were antigen specific, since they did not cross react with three irrelevant antigens (OVA, TCS and F gamma G). The hybridomas were quite stable. After 13 passages in tissue culture flasks, they still retained their antibody secreting ability. From flow cytometry analysis the subclone 50-3 was more stable than the subclone 50-4. The human immunoglobulin contained in supernatant collected during regular passages was equivalent to 69.6 micrograms/ml.
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Affiliation(s)
- Z Q Jiang
- Shanghai Institute of Cell Biology, Academia Sinica, China
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Vitale M, Pistillo MP, Tazzari PL, Falco M, Sun PF, Mantero S, Ferrara GB. Production and characterization of murine monoclonal antibodies recognizing HLA-DQ polymorphisms obtained by immunizing mice with transfected L cells. Hum Immunol 1992; 34:126-34. [PMID: 1429033 DOI: 10.1016/0198-8859(92)90038-o] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Two polymorphic anti-HLA-DQB1 mAbs, TM 902 and TM 903, have been produced by immunizing F1 mice (Balb/C x C3H) with HLA-DQ-transfected mouse L cells. Cytotoxic analysis on a panel of HLA-typed cell lines has shown that TM 902 reacts with all the DQB1* alleles except DQB1*0501, *0502, and *0503, and DQB1*0601, *0602, *0603, and *0604, whereas TM 903 reacts with the DQB1*0501, *0502, and *0503, DQB1*0601, *0602, *0603, and *0604, and DQB1*0401 and *0402 alleles. The same reactivity pattern has been confirmed by cytofluorimetric analysis. Indirect immunofluorescence with various class-II-transfected cell lines showed no binding of both mAbs to the DR or DP products, suggesting their reactivity to the DQ products. The use of transfectants expressing HLA-DR/DQ heterodimers demonstrates that TM902 and TM903 mAbs are both specific for the DQ-beta chain. Comparison of the amino acid sequences of the DQ-beta chain suggests the involvement of residues 84-90 (QLELRTT) in the formation of TM902 epitope and of residues 54-55 (GR) in the formation of TM903 epitope.
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Affiliation(s)
- M Vitale
- National Institute for Cancer Research, Genoa, Italy
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Ji YY, Yeh M, Sun PF. [Cellular aspects of in vitro induction of antibody responses of human cells]. Shi Yan Sheng Wu Xue Bao 1991; 24:333-42. [PMID: 1796717] [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: 12/28/2022]
Abstract
An in vitro system for induction of antibody responses of human cells has been established in our lab. B cell enriched fractions from excised human tonsils or trauma spleen were cultured for 7-14 days with tetanus toxoid or HBsAg vaccine with or without human T cell conditioned medium (C. M.) or a mixture of low concentrations of PWM and LPS (MTG). Positive antibody responses could be detected in cultures. Cells taken from different culture periods were subjected to FACS analysis in order to expound cellular changes during antibody induction periods so as to improve the in vitro antibody induction system. The results were described as follows: 1. Variations in total percentages of T cells during culturing periods seemed to be related its initial percentages. Cells with bigger initial percentages tended to decrease first and finally maintained at about 30%. While cells with smaller initial percentages tended to increase and finally also maintained at 30%. 2. CD4+ Th cells and CD8+ Ts cells from tonsils and spleen behaved somewhat differently. In tonsil cell cultures the percentages of CD4+ cells were often bigger than the percentages of CD8+ cells throughout the culture period. However, the inverted proportions of CD4+/CD8+ were shown in spleen cell cultures, especially in the culture with C. M. The possible relationships between the variations in CD4+/CD8+ proportions described as above and the intensities of antibody responses were discussed. Additionally, adding 1-Leucine-Methyl Ester showed no effects either on CD8+ or CD4+ cell percentages. 3. B cell (SIg+) percentages in both tonsil and spleen cultures were quite stable throughout the culture period, about 60% of total cells. CD19, a marker of B cell, was only present in part of the cultured SIg+ cells. The significance of the variations in CD19+, SIg+ cells was unclear. CD5+ B cells were known as cells secreting autoantibodies. Our results showed that these cells consistently maintained a relatively low percentage in the whole antibody induction period. 4. The reasonableness standard we used for "gating" in FACS analysis was discussed.
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Affiliation(s)
- Y Y Ji
- Shanghai Institute of Cell Biology, Academia Sinica
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