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Zhu Z, Yang L, Wu J, Meng Y, Xi X, Yan B, Chen J, Lu J, Huang X, Deng W, Shang C, Shum PP, Yang Y, Chen H, Xiang K, Liu GG, Liu Z, Gao Z. Brillouin Klein space and half-turn space in three-dimensional acoustic crystals. Sci Bull (Beijing) 2024:S2095-9273(24)00337-2. [PMID: 38782659 DOI: 10.1016/j.scib.2024.05.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Revised: 03/28/2024] [Accepted: 05/06/2024] [Indexed: 05/25/2024]
Abstract
The Bloch band theory and Brillouin zone (BZ) that characterize wave-like behaviors in periodic mediums are two cornerstones of contemporary physics, ranging from condensed matter to topological physics. Recent theoretical breakthrough revealed that, under the projective symmetry algebra enforced by artificial gauge fields, the usual two-dimensional (2D) BZ (orientable Brillouin two-torus) can be fundamentally modified to a non-orientable Brillouin Klein bottle with radically distinct manifold topology. However, the physical consequence of artificial gauge fields on the more general three-dimensional (3D) BZ (orientable Brillouin three-torus) was so far missing. Here, we theoretically discovered and experimentally observed that the fundamental domain and topology of the usual 3D BZ can be reduced to a non-orientable Brillouin Klein space or an orientable Brillouin half-turn space in a 3D acoustic crystal with artificial gauge fields. We experimentally identify peculiar 3D momentum-space non-symmorphic screw rotation and glide reflection symmetries in the measured band structures. Moreover, we experimentally demonstrate a novel stacked weak Klein bottle insulator featuring a nonzero Z2 topological invariant and self-collimated topological surface states at two opposite surfaces related by a nonlocal twist, radically distinct from all previous 3D topological insulators. Our discovery not only fundamentally modifies the fundamental domain and topology of 3D BZ, but also opens the door towards a wealth of previously overlooked momentum-space multidimensional manifold topologies and novel gauge-symmetry-enriched topological physics and robust acoustic wave manipulations beyond the existing paradigms.
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Affiliation(s)
- Zhenxiao Zhu
- State Key Laboratory of Optical Fiber and Cable Manufacture Technology, Department of Electronic and Electrical Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Linyun Yang
- State Key Laboratory of Optical Fiber and Cable Manufacture Technology, Department of Electronic and Electrical Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Jien Wu
- School of Physics and Optoelectronics, South China University of Technology, Guangzhou 510640, China
| | - Yan Meng
- State Key Laboratory of Optical Fiber and Cable Manufacture Technology, Department of Electronic and Electrical Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Xiang Xi
- State Key Laboratory of Optical Fiber and Cable Manufacture Technology, Department of Electronic and Electrical Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Bei Yan
- State Key Laboratory of Optical Fiber and Cable Manufacture Technology, Department of Electronic and Electrical Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Jingming Chen
- State Key Laboratory of Optical Fiber and Cable Manufacture Technology, Department of Electronic and Electrical Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Jiuyang Lu
- School of Physics and Optoelectronics, South China University of Technology, Guangzhou 510640, China; Key Laboratory of Artificial Micro- and Nanostructures of Ministry of Education and School of Physics and Technology, Wuhan University, Wuhan 430072, China
| | - Xueqin Huang
- School of Physics and Optoelectronics, South China University of Technology, Guangzhou 510640, China
| | - Weiyin Deng
- School of Physics and Optoelectronics, South China University of Technology, Guangzhou 510640, China; Key Laboratory of Artificial Micro- and Nanostructures of Ministry of Education and School of Physics and Technology, Wuhan University, Wuhan 430072, China
| | - Ce Shang
- King Abdullah University of Science and Technology (KAUST), Physical Science and Engineering Division (PSE), Thuwal 23955-6900, Saudi Arabia
| | - Perry Ping Shum
- State Key Laboratory of Optical Fiber and Cable Manufacture Technology, Department of Electronic and Electrical Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Yihao Yang
- Interdisciplinary Center for Quantum Information, State Key Laboratory of Modern Optical Instrumentation, ZJU-Hangzhou Global Science and Technology Innovation Center, College of Information Science and Electronic Engineering, ZJU-UIUC Institute, Zhejiang University, Hangzhou 310027, China
| | - Hongsheng Chen
- Interdisciplinary Center for Quantum Information, State Key Laboratory of Modern Optical Instrumentation, ZJU-Hangzhou Global Science and Technology Innovation Center, College of Information Science and Electronic Engineering, ZJU-UIUC Institute, Zhejiang University, Hangzhou 310027, China
| | - Kexin Xiang
- State Key Laboratory of Optical Fiber and Cable Manufacture Technology, Department of Electronic and Electrical Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Gui-Geng Liu
- Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore.
| | - Zhengyou Liu
- Key Laboratory of Artificial Micro- and Nanostructures of Ministry of Education and School of Physics and Technology, Wuhan University, Wuhan 430072, China; Institute for Advanced Studies, Wuhan University, Wuhan 430072, China.
| | - Zhen Gao
- State Key Laboratory of Optical Fiber and Cable Manufacture Technology, Department of Electronic and Electrical Engineering, Southern University of Science and Technology, Shenzhen 518055, China.
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Liu Z, Yan B, Liu H, Liu X, Xiao X, Ming Z. Enhancing APE1 detection through apurinic/apyrimidinic site inhibition of DNA polymerase: an innovative, highly sensitive approach. Chem Commun (Camb) 2024; 60:4695-4698. [PMID: 38592754 DOI: 10.1039/d4cc00304g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/10/2024]
Abstract
This study presents an innovative method for the highly sensitive detection of apurinic/apyrimidinic endonuclease 1 (APE1), a crucial biomarker and target for cancer diagnosis and treatment. The method is predicated on our discovery that the apurinic or apyrimidinic site (AP site) can inhibit the activity of Taq DNA polymerase. Subsequent experiments further led to the development of a new amplification method based on the digestion activity of Lambda exonuclease. This approach showed potential to detect trace amounts of APE1 in biological samples with high sensitivity.
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Affiliation(s)
- Zhijun Liu
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China.
| | - Bei Yan
- Institute of Medical Sciences, General Hospital of Ningxia Medical University, Yinchuan, Ningxia, 750004, China
| | - Huan Liu
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China.
| | - Xiao Liu
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China.
| | - Xianjin Xiao
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China.
| | - Zhihao Ming
- Department of Urology, The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha 410006, China.
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Mu Y, Zhou X, Li L, Liu X, Wen X, Zhang L, Yan B, Zhang W, Dong K, Hu H, Liao Y, Ye Z, Deng A, Wang Y, Mao Z, Yang M, Xiao X. Automatic high-throughput and non-invasive selection of sperm at the biochemical level. Med 2024:S2666-6340(24)00120-X. [PMID: 38608708 DOI: 10.1016/j.medj.2024.03.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Revised: 11/06/2023] [Accepted: 03/11/2024] [Indexed: 04/14/2024]
Abstract
BACKGROUND Sperm selection, a key step in assisted reproductive technology (ART), has long been restrained at the preliminary physical level (morphology or motility); however, subsequent fertilization and embryogenesis are complicated biochemical processes. Such an enormous "gap" poses tough problems for couples dealing with infertility, especially patients with severe/total asthenozoospermia . METHODS We developed a biochemical-level, automatic-screening/separation, smart droplet-TO-hydrogel chip (BLASTO-chip) for sperm selection. The droplet can sense the pH change caused by sperm's respiration products and then transforms into a hydrogel to be selected out. FINDINGS The BLASTO-chip system can select biochemically active sperm with an accuracy of over 90%, and its selection efficiency can be flexibly tuned by nearly 10-fold. All the substances in the system were proven to be biosafe via evaluating mice fertilization and offspring health. Live sperm down to 1% could be enriched by over 76-fold to 76%. For clinical application to patients with severe/total asthenozoospermia, the BLASTO-chip could select live sperm from human semen samples containing 10% live but 100% immotile sperm. The rates of fertilization, cleavage, early embryos, and blastocysts were drastically elevated from 15% to 70.83%, 10% to 62.5%, 5% to 37.5%, and 0% to 16.67%, respectively. CONCLUSIONS The BLASTO-chip represents a real biochemical-level technology for sperm selection that is completely independent of sperm's motility. It can be a powerful tool in ART, especially for patients with severe/total asthenozoospermia. FUNDING This work was funded by the Ministry of Science and Technology of China, the Ministry of Education of China, and the Shenzhen-Hong Kong Hetao Cooperation Zone.
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Affiliation(s)
- Yaoqin Mu
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Xiaoyu Zhou
- Department of Precision Diagnostic and Therapeutic Technology (FRI), Department of Biomedical Sciences and Tung Biomedical Sciences Centre, Key Laboratory of Biochip Technology and Biotech and Health Centre (SRI), City University of Hong Kong, Hong Kong, China
| | - Longjie Li
- School of Life Science and Technology, Wuhan Polytechnic University, Wuhan 430023, China
| | - Xiaowen Liu
- Hunan Provincial Key Laboratory of Regional Hereditary Birth Defects Prevention and Control, Changsha Hospital for Maternal & Child Health Care Affiliated to Hunan Normal University, Changsha, China
| | - Xu Wen
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Lei Zhang
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Bei Yan
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Wei Zhang
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430023, China
| | - Kejun Dong
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430023, China
| | - Hao Hu
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Yangwei Liao
- Department of Biliary-Pancreatic Surgery, Affiliated Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Zhengxin Ye
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Aimin Deng
- Hunan Provincial Key Laboratory of Regional Hereditary Birth Defects Prevention and Control, Changsha Hospital for Maternal & Child Health Care Affiliated to Hunan Normal University, Changsha, China
| | - Yuan Wang
- Department of Precision Diagnostic and Therapeutic Technology (FRI), Department of Biomedical Sciences and Tung Biomedical Sciences Centre, Key Laboratory of Biochip Technology and Biotech and Health Centre (SRI), City University of Hong Kong, Hong Kong, China
| | - Zenghui Mao
- Hunan Provincial Key Laboratory of Regional Hereditary Birth Defects Prevention and Control, Changsha Hospital for Maternal & Child Health Care Affiliated to Hunan Normal University, Changsha, China.
| | - Mengsu Yang
- Department of Precision Diagnostic and Therapeutic Technology (FRI), Department of Biomedical Sciences and Tung Biomedical Sciences Centre, Key Laboratory of Biochip Technology and Biotech and Health Centre (SRI), City University of Hong Kong, Hong Kong, China.
| | - Xianjin Xiao
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China.
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Danowski J, Riopelle K, Yan B. Cascaded Semantic Fractionation for identifying a domain in social media. Front Res Metr Anal 2024; 9:1189099. [PMID: 38495827 PMCID: PMC10940528 DOI: 10.3389/frma.2024.1189099] [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: 03/18/2023] [Accepted: 02/12/2024] [Indexed: 03/19/2024] Open
Abstract
Searching social media to find relevant semantic domains often results in large text files, many of which are irrelevant due to cross-domain content resulting from word polysemy, abstractness, and degree centrality. Through an iterative pruning process, Cascaded Semantic Fractionation (CSF) systematically removes these cross-domain links. The social network procedure performs community detection in semantic networks, locates the semantic groups containing the terms of interest, excludes intergroup links, and repeats community detection on the pruned intragroup network until the domain of interest is clarified. To illustrate CSF, we analyzed public Facebook posts, using the CrowdTangle app for historical data search, from February 3, 2020, to March 13, 2021, about the possible Wuhan lab leak of COVID-19 over a daily interval. The initial search using keywords located six multi-day bursts of posts of more than 500 per day among 95 K posts. These posts were network analyzed to find the domain of interest using the iterative community detection and pruning process. CSF can be applied to capture the evolutions in semantic domains over time. At the outset, the lab leak theory was presented in conspiracy theory terms. Over time, the conspiratorial elements washed out in favor of an accidental release as the issue moved from social to mainstream media and official government views. CSF identified the relevant social media semantic domain and tracked its changes.
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Affiliation(s)
- James Danowski
- Department of Communication, University of Illinois at Chicago, Chicago, IL, United States
| | - Ken Riopelle
- Department of Industrial and Systems Engineering, Wayne State University, Detroit, MI, United States
| | - Bei Yan
- School of Business, Stevens Institute of Technology, Hoboken, NJ, United States
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Yang Z, Zhang L, Fan H, Yan B, Mu Y, Zhou Y, Pei C, Li L, Xiao X. Gaussian clustering and quantification of the sperm chromatin dispersion test using convolutional neural networks. Analyst 2024; 149:366-375. [PMID: 38044817 DOI: 10.1039/d3an01616a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2023]
Abstract
Sperm DNA fragmentation is a sign of sperm nuclear damage. The sperm chromatin dispersion (SCD) test is a reliable and economical method for the evaluation of DNA fragmentation. However, the cut-off value for differentiation of DNA fragmented sperms is fixed at 1/3 with limited statistical justification, making the SCD test a semi-quantitative method that gives user-dependent results. We construct a collection of deep neural networks to automate the evaluation of bright-field images for SCD tests. The model can detect valid sperm nuclei and their locations from the input images captured with a 20× objective and predict the geometric parameters of the halo ring. We construct an annotated dataset consisting of N = 3120 images. The ResNet 18 based network reaches an average precision (AP50) of 91.3%, a true positive rate of 96.67%, and a true negative rate of 96.72%. The distribution of relative halo radii is fit to the multi-peak Gaussian function (p > 0.99). DNA fragmentation is regarded as those with a relative halo radius 1.6 standard deviations smaller than the mean of a normal cluster. In conclusion, we have established a deep neural network based model for the automation and quantification of the SCD test that is ready for clinical application. The DNA fragmentation index is determined using Gaussian clustering, reflecting the natural distribution of halo geometry and is more tolerable to disturbances and sample conditions, which we believe will greatly improve the clinical significance of the SCD test.
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Affiliation(s)
- Zheng Yang
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, PR China.
| | - Lei Zhang
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, PR China.
| | - Heng Fan
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, PR China.
| | - Bei Yan
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, PR China.
- Ningxia Human Sperm Bank, Institute of Medical Sciences, General Hospital of Ningxia Medical University, Yinchuan, 750004, PR China
| | - Yaoqin Mu
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, PR China.
| | - Yue Zhou
- Ningxia Human Sperm Bank, Institute of Medical Sciences, General Hospital of Ningxia Medical University, Yinchuan, 750004, PR China
| | - Chengbin Pei
- Ningxia Human Sperm Bank, Institute of Medical Sciences, General Hospital of Ningxia Medical University, Yinchuan, 750004, PR China
| | - Longjie Li
- School of Life Science and Technology, Wuhan Polytechnic University, Wuhan, 430023, PR China.
| | - Xianjin Xiao
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, PR China.
- Hunan Provincial Key Laboratory of Regional Hereditary Birth Defects Prevention and Control, Changsha Hospital for Maternal and Child Health Care Affiliated to Hunan Normal University, Changsha, PR China
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Zhang L, Zhang W, Mu Y, Hu H, Dong K, Wen X, Ye Z, Sun Q, Yan B, Mao Z, Xiao X. Ultrasensitive and Quantitative DNA Methylation Detection Method Based on the MutS Protein. Anal Chem 2023; 95:18828-18835. [PMID: 38078896 DOI: 10.1021/acs.analchem.3c04013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2023]
Abstract
DNA methylation is closely related to cancer. It is generally accepted that DNA methylation detection is crucial in cancer diagnosis, prognosis, and treatment monitoring. Therefore, there is an urgent demand for developing a simple, rapid, highly sensitive, and highly specific methylation detection method to detect DNA methylation at specific sites quantitatively. In this work, we introduce a DNA methylation detection method based on MutS and methylation-specific PCR, named MutS-based methylation-specific PCR (MB-MSP), which has the advantages of simplicity, speed, high specificity, sensitivity, and broad applicability. Utilizing the MutS's ability to bind mismatched base pairs, we inhibit not only the amplification of unmethylated DNA but also nonspecific primer amplification. We achieved a detection sensitivity of 0.5% for the methylated genes of ACP1, CLEC11A, and SEPT9 by MB-MSP. It has a good linear relationship and a detection time of only 1.5 h. To validate the feasibility of the MB-MSP method in clinical application, we conducted methylation detection on plasma-circulating tumor DNA samples from 10 liver cancer patients and 5 healthy people, achieving a 100% accuracy rate. In conclusion, MB-MSP, as a novel and reliable DNA methylation detection tool, holds significant application value and potential for advancing early cancer diagnosis.
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Affiliation(s)
- Lei Zhang
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430000, P.R. China
| | - Wei Zhang
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430000, P.R. China
| | - Yaoqin Mu
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430000, P.R. China
| | - Hao Hu
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430000, P.R. China
| | - Kejun Dong
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430000, P.R. China
| | - Xu Wen
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430000, P.R. China
| | - Zhengxin Ye
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430000, P.R. China
| | - Qiangqiang Sun
- Wuhan Yujian Biotechnology, Co. Ltd., Wuhan 430000, P.R. China
| | - Bei Yan
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430000, P.R. China
- Ningxia Human Sperm Bank, Institute of Medical Sciences, General Hospital of Ningxia Medical University, Key Laboratory of Fertility Preservation and Maintenance of Ministry of Education, Ningxia Medical University, Yinchuan 750004, P.R. China
| | - Zenghui Mao
- Hunan Provincial Key Laboratory of Regional Hereditary Birth Defects Prevention and Control, Changsha Hospital for Maternal & Child Health Care Affiliated to Hunan Normal University, Changsha 410007, P.R. China
| | - Xianjin Xiao
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430000, P.R. China
- Hunan Provincial Key Laboratory of Regional Hereditary Birth Defects Prevention and Control, Changsha Hospital for Maternal & Child Health Care Affiliated to Hunan Normal University, Changsha 410007, P.R. China
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Zhou Y, Wang J, Zhuo L, Pei C, Jia S, Tian J, Wang H, Yan B, Ma L. Fluorescent enzyme-based biosensor for sensitive analysis of DNA damage in cryopreserved sperm. Cryobiology 2023; 113:104591. [PMID: 37804950 DOI: 10.1016/j.cryobiol.2023.104591] [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: 08/02/2023] [Revised: 09/12/2023] [Accepted: 10/04/2023] [Indexed: 10/09/2023]
Abstract
The freeze-thaw process can induce irreversible structural and functional changes in human sperm, particularly sperm DNA damage. Selecting a more accurate and sensitive detection method for evaluating sperm DNA integrity is crucial. To accurately assess sperm DNA integrity following the freeze-thaw process and significantly improve the clinical and scientific utilization of cryopreserved sperm. In this study, we utilized a novel fluorescent biosensor, assisted by terminal deoxynucleotidyl transferase (TdT) and Endonuclease IV, to detect DNA breakpoints during sperm cryopreservation. We evaluated the biosensor's performance by comparing it with the conventional DNA fragmentation index (DFI) measured using sperm chromatin structure analysis (SCSA). The cryopreserved group exhibited a significantly higher sperm DFI compared to the fresh group. No significant difference was observed between the antioxidant group and the cryopreserved group. However, the new method revealed a significant reduction in the number of DNA breakpoints in the antioxidant group compared to the cryopreserved group. The novel biosensor demonstrated superior accuracy and effectiveness in assessing sperm DNA integrity during cryopreservation compared to the conventional SCSA method. We believe that the biosensor holds significant potential for widespread use in the field of reproductive medicine.
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Affiliation(s)
- Yue Zhou
- Ningxia Human Sperm Bank, Institute of Medical Sciences, General Hospital of Ningxia Medical University, Key Laboratory of Fertility Preservation and Maintenance of Ministry of Education, Ningxia Medical University, Yinchuan, 750004, PR China
| | - Juan Wang
- Ningxia Human Sperm Bank, Institute of Medical Sciences, General Hospital of Ningxia Medical University, Key Laboratory of Fertility Preservation and Maintenance of Ministry of Education, Ningxia Medical University, Yinchuan, 750004, PR China; Department of Pathology, Ningxia Medical University, Yinchuan, 750001, PR China
| | - Lifan Zhuo
- Ningxia Human Sperm Bank, Institute of Medical Sciences, General Hospital of Ningxia Medical University, Key Laboratory of Fertility Preservation and Maintenance of Ministry of Education, Ningxia Medical University, Yinchuan, 750004, PR China
| | - Chengbin Pei
- Ningxia Human Sperm Bank, Institute of Medical Sciences, General Hospital of Ningxia Medical University, Key Laboratory of Fertility Preservation and Maintenance of Ministry of Education, Ningxia Medical University, Yinchuan, 750004, PR China
| | - Shaotong Jia
- Reproductive Center, General Hospital of Ningxia Medical University, Yinchuan, 750004, PR China
| | - Jia Tian
- Ningxia Human Sperm Bank, Institute of Medical Sciences, General Hospital of Ningxia Medical University, Key Laboratory of Fertility Preservation and Maintenance of Ministry of Education, Ningxia Medical University, Yinchuan, 750004, PR China
| | - Honghong Wang
- Ningxia Human Sperm Bank, Institute of Medical Sciences, General Hospital of Ningxia Medical University, Key Laboratory of Fertility Preservation and Maintenance of Ministry of Education, Ningxia Medical University, Yinchuan, 750004, PR China
| | - Bei Yan
- Ningxia Human Sperm Bank, Institute of Medical Sciences, General Hospital of Ningxia Medical University, Key Laboratory of Fertility Preservation and Maintenance of Ministry of Education, Ningxia Medical University, Yinchuan, 750004, PR China.
| | - Lianghong Ma
- Ningxia Human Sperm Bank, Institute of Medical Sciences, General Hospital of Ningxia Medical University, Key Laboratory of Fertility Preservation and Maintenance of Ministry of Education, Ningxia Medical University, Yinchuan, 750004, PR China.
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Zhuo L, Zhou Y, Tian J, Li Y, Xie Z, Pei C, Yan B, Ma L. The role of miR-199a-3p in inhibiting the proliferation of spermatogonial stem cells under heat stress. Theriogenology 2023; 211:56-64. [PMID: 37573635 DOI: 10.1016/j.theriogenology.2023.07.008] [Citation(s) in RCA: 1] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Revised: 07/09/2023] [Accepted: 07/09/2023] [Indexed: 08/15/2023]
Abstract
MicroRNAs (miRNAs) play a crucial role in regulating various physiological processes, including cell differentiation, proliferation, and apoptosis. However, their specific functions in response to heat stress are not fully understood. This study aimed to investigate the regulatory effects of miR-199a-3p on the proliferation of heat stress-treated spermatogonial stem cells (SSCs). SSCs were isolated from mouse testes and cultured in vitro to identify marker molecules. Lentiviruses carrying miR-199a-3p-over, miR-199a-3p-inhibit, and ID4-over constructs were generated for stable transfection. Luciferase assay was employed to confirm the targeting relationship between miR-199a-3p and ID4. An in vitro SSCs heat stress model was established, and the miR-199a-3p-inhibit and ID4-over groups were included. Cellular proliferation was assessed using CCK-8, EdU, and cell cycle analysis methods after heat stress. Expression levels of miR-199a-3p and ID4 were evaluated by western blotting and qRT-PCR. The results demonstrated that miR-199a-3p-over inhibited SSCs proliferation, while ID4-over promoted an increase in SSCs number. Luciferase assay confirmed the regulatory effect of miR-199a-3p on ID4 expression. Moreover, after heat stress treatment, miR-199a-3p-inhibit and ID4-over enhanced SSCs proliferation compared to the control group. These findings suggest that miR-199a-3p modulates SSCs proliferation by targeting ID4, especially under heat stress conditions.
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Affiliation(s)
- Lifan Zhuo
- Institute of Medical Sciences, Ningxia Human Sperm Bank, General Hospital of Ningxia Medical University, Key Laboratory of Fertility Preservation and Maintenance of Ministry of Education, Ningxia Medical University, Yinchuan, 750004, China
| | - Yue Zhou
- Institute of Medical Sciences, Ningxia Human Sperm Bank, General Hospital of Ningxia Medical University, Key Laboratory of Fertility Preservation and Maintenance of Ministry of Education, Ningxia Medical University, Yinchuan, 750004, China
| | - Jia Tian
- Institute of Medical Sciences, Ningxia Human Sperm Bank, General Hospital of Ningxia Medical University, Key Laboratory of Fertility Preservation and Maintenance of Ministry of Education, Ningxia Medical University, Yinchuan, 750004, China
| | - Yan Li
- Institute of Medical Sciences, Ningxia Human Sperm Bank, General Hospital of Ningxia Medical University, Key Laboratory of Fertility Preservation and Maintenance of Ministry of Education, Ningxia Medical University, Yinchuan, 750004, China
| | - Zhiyuan Xie
- Institute of Medical Sciences, Ningxia Human Sperm Bank, General Hospital of Ningxia Medical University, Key Laboratory of Fertility Preservation and Maintenance of Ministry of Education, Ningxia Medical University, Yinchuan, 750004, China
| | - Chengbin Pei
- Institute of Medical Sciences, Ningxia Human Sperm Bank, General Hospital of Ningxia Medical University, Key Laboratory of Fertility Preservation and Maintenance of Ministry of Education, Ningxia Medical University, Yinchuan, 750004, China
| | - Bei Yan
- Institute of Medical Sciences, Ningxia Human Sperm Bank, General Hospital of Ningxia Medical University, Key Laboratory of Fertility Preservation and Maintenance of Ministry of Education, Ningxia Medical University, Yinchuan, 750004, China.
| | - Lianghong Ma
- Institute of Medical Sciences, Ningxia Human Sperm Bank, General Hospital of Ningxia Medical University, Key Laboratory of Fertility Preservation and Maintenance of Ministry of Education, Ningxia Medical University, Yinchuan, 750004, China; Institute of Medical Sciences, Department of Urology, General Hospital of Ningxia Medical University, Yinchuan, 750004, China.
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Luo C, Li X, Yan B, Qin D, Tian X, Wang P, Chen R, Zhang P, Gong Q, Peng X, Li X, Zeng D, Liu X, Wu T, Chen J, Wu X, Xu S. Quadruple stem cells transplantation of haploidentical bone marrow and PBSCs supporting by third-party umbilical cord blood and MSCs achieved excellent outcomes. Ann Hematol 2023; 102:3285-3287. [PMID: 37592091 DOI: 10.1007/s00277-023-05399-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Accepted: 08/02/2023] [Indexed: 08/19/2023]
Affiliation(s)
- Chengxin Luo
- Center for Hematology, Southwest Hospital, Third Military Medical University, Chongqing, China
- Key Laboratory of Cancer Immunotherapy of Chongqing, Chongqing, China
| | - Xiaohong Li
- Institute of Hematology, The Fifth Medical Center, General Hospital of PLA, Beijing, China
| | - Bei Yan
- Institute of Hematology, The Fifth Medical Center, General Hospital of PLA, Beijing, China
| | - Dabing Qin
- Center for Hematology, Southwest Hospital, Third Military Medical University, Chongqing, China
- Key Laboratory of Cancer Immunotherapy of Chongqing, Chongqing, China
| | - Xiaobo Tian
- Center for Hematology, Southwest Hospital, Third Military Medical University, Chongqing, China
- Key Laboratory of Cancer Immunotherapy of Chongqing, Chongqing, China
| | - Ping Wang
- Center for Hematology, Southwest Hospital, Third Military Medical University, Chongqing, China
- Key Laboratory of Cancer Immunotherapy of Chongqing, Chongqing, China
| | - Run Chen
- Center for Hematology, Southwest Hospital, Third Military Medical University, Chongqing, China
- Key Laboratory of Cancer Immunotherapy of Chongqing, Chongqing, China
| | - Pei Zhang
- Center for Hematology, Southwest Hospital, Third Military Medical University, Chongqing, China
- Key Laboratory of Cancer Immunotherapy of Chongqing, Chongqing, China
| | - Qiang Gong
- Center for Hematology, Southwest Hospital, Third Military Medical University, Chongqing, China
- Key Laboratory of Cancer Immunotherapy of Chongqing, Chongqing, China
| | - Xi Peng
- Center for Hematology, Southwest Hospital, Third Military Medical University, Chongqing, China
- Key Laboratory of Cancer Immunotherapy of Chongqing, Chongqing, China
| | - Xi Li
- Department of Hematology, Daping Hospital, Third Military Medical University, Chongqing, China
| | - Dongfeng Zeng
- Department of Hematology, Daping Hospital, Third Military Medical University, Chongqing, China
| | - Xiaoliang Liu
- Department of Hematology, The First Hospital of Jilin University, Jilin, China
| | - Tao Wu
- Department of Hematology, The 940Th Hospital of Joint Logistics Support Force of PLA, Gansu, China
| | - Jieping Chen
- Center for Hematology, Southwest Hospital, Third Military Medical University, Chongqing, China
- Key Laboratory of Cancer Immunotherapy of Chongqing, Chongqing, China
| | - Xiaoxiong Wu
- Institute of Hematology, The Fifth Medical Center, General Hospital of PLA, Beijing, China.
| | - Shuangnian Xu
- Center for Hematology, Southwest Hospital, Third Military Medical University, Chongqing, China.
- Key Laboratory of Cancer Immunotherapy of Chongqing, Chongqing, China.
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Hu H, Dong K, Yan B, Mu Y, Liao Y, Zhang L, Guo S, Xiao X, Wang X. Highly-sensitive and homogenous detection of 8-oxoguanine based DNA oxidative damage by a CRISPR-enhanced structure-switching aptamer assay. Biosens Bioelectron 2023; 239:115588. [PMID: 37597500 DOI: 10.1016/j.bios.2023.115588] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Revised: 08/05/2023] [Accepted: 08/09/2023] [Indexed: 08/21/2023]
Abstract
8-oxoguanine (8-oxoG) based DNA damage is the most common type of DNA damage which greatly affect gene expression. Therefore, accurate quantification of 8-oxoG based DNA damage is of high clinical significance. However, current methods for 8-oxoG detection struggle to balance convenience, low cost, and sensitivity. Herein, we have proposed and investigated the shortened crRNA mode of CRISPR-Cas12a system and greatly enhanced its signal-to-noise ratio. Taking advantages of the shortened crRNA mode, we further developed a CRISPR-enhanced structure-switching aptamer assay (CESA) for 8-oxoG. The analytical performance of CESA was thoroughly investigated via detecting free 8-oxoG and 8-oxoG on gDNA. The CESA displayed impressive sensitivity for free 8-oxoG, with detection and quantification limits of 32.3 pM and 0.107 nM. These limits modestly rose to 64.5 pM and 0.215 nM when examining 8-oxoG on gDNA. To demonstrate the clinical practicability and significance of the CESA system, we further applied it to measuring 8-oxoG levels in 7 plasma samples (Cervical carcinoma, 11.87 ± 0.69 nM VS. Healthy control, 2.66 ± 0.42 nM), 24 seminal plasma samples (Asthenospermia, 22.29 ± 7.48 nM VS. Normal sperm, 9.75 ± 3.59 nM), 10 breast-tissue gDNA samples (Breast cancer, 2.77 ± 0.63 nM/μg VS. Healthy control, 0.41 ± 0.09 nM/μg), and 24 sperm gDNA samples (Asthenospermia, 28.62 ± 4.84 VS. Normal sperm, 16.67 ± 3.31). This work not only proposes a novel design paradigm of shortened crRNA for developing CRISPR-Cas12a based biosensors but also offers a powerful tool for detecting 8-oxoG based DNA damage.
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Affiliation(s)
- Hao Hu
- Department of Breast Surgery, Second Hospital of Jilin University, No.4026 Yatai Street, Nanguan District, Changchun, 130041, China; Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Kejun Dong
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China; Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Bei Yan
- Ningxia Human Sperm Bank, General Hospital of Ningxia Medical University, Yinchuan, 750004, PR China; Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Yaoqin Mu
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Yangwei Liao
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Lei Zhang
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Songcheng Guo
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Xianjin Xiao
- Department of Breast Surgery, Second Hospital of Jilin University, No.4026 Yatai Street, Nanguan District, Changchun, 130041, China; Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China; Wuhan Huchuang Biotechnology Co, Ltd, No.818 Gaoxin Avenue, Wuhan, 430070, China.
| | - Xinyu Wang
- Department of Breast Surgery, Second Hospital of Jilin University, No.4026 Yatai Street, Nanguan District, Changchun, 130041, China.
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11
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Yan B, Fan H, Ji H, Li S, Hu H, Gu X, Jia S, Liu Y, Guo J, Yang Z, Zhou L, Xiao X, Li L, Mao Z. DNA strand displacement and TdT-Mediated DNA extension for swift, convenient, and quantitative evaluation of sperm DNA integrity and its clinical implications. Anal Chim Acta 2023; 1280:341821. [PMID: 37858544 DOI: 10.1016/j.aca.2023.341821] [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: 06/25/2023] [Revised: 09/05/2023] [Accepted: 09/12/2023] [Indexed: 10/21/2023]
Abstract
DNA integrity is crucial for the clinical pregnancy outcome and offspring health, while detection methods currently used (comet assay, TUNNEL assay, SCSA, etc.) can only provide the ratio of positive sperms at the cellular level and are unable to quantitatively detect the breakpoints at the DNA molecular level. Herein, we developed a detection system based on terminal deoxynucleotidyl transferase and DNA strand displacement fluorescent probe, which could efficiently and conveniently measure the number of 3'-OH (equivalent to the number of breakpoints). We further investigated the use of this technique in assisted reproduction after completing the principle verification, system optimization, and research on analytical performance. The detection system was shown to have a good linear range from 0.01 nM to 4 nM, using single-stranded DNA with 3'-OH end as the calibrator. The system underwent thorough optimization for stability and accuracy. In comparison to the widely accepted index DFI detected by SCSA, the new system demonstrated reasonable correlation and better prediction efficiency. Its applicability was also proven through its use in assisted reproductive technology procedures.
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Affiliation(s)
- Bei Yan
- Human Sperm Bank, Institute of Medical Sciences, General Hospital of Ningxia Medical University, Yinchuan, 750004, China; Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China; Hunan Provincial Key Laboratory of Regional Hereditary Birth Defects Prevention and Control, Changsha Hospital for Maternal & Child Health Care Affiliated to Hunan Normal University, Changsha, 410007, China
| | - Heng Fan
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Hanxu Ji
- School of Life Science and Technology, Wuhan Poly-technic University, Wuhan, 430023, China
| | - Siqi Li
- School of Life Science and Technology, Wuhan Poly-technic University, Wuhan, 430023, China
| | - Hao Hu
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Xiuli Gu
- Wuhan Huake Reproductive Hospital, Wuhan, 430030, China
| | - Shaotong Jia
- Human Sperm Bank, Institute of Medical Sciences, General Hospital of Ningxia Medical University, Yinchuan, 750004, China
| | - Ying Liu
- Wuhan Biobank, Wuhan, 430070, China
| | - Jing Guo
- Wuhan Biobank, Wuhan, 430070, China
| | | | | | - Xianjin Xiao
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China; Anhui Province Key Laboratory of Reproductive Health and Genetics, Anhui Medical University, Hefei, 230031, China.
| | - Longjie Li
- School of Life Science and Technology, Wuhan Poly-technic University, Wuhan, 430023, China; Wuhan Huchuang United Technology Co., Ltd, Wuhan, 430070, China.
| | - Zenghui Mao
- Hunan Provincial Key Laboratory of Regional Hereditary Birth Defects Prevention and Control, Changsha Hospital for Maternal & Child Health Care Affiliated to Hunan Normal University, Changsha, 410007, China.
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He X, Yu H, Fang J, Qi Z, Pei S, Yan B, Liu R, Wang Q, Szeto IMY, Liu B, Chen L, Li D. The effect of n-3 polyunsaturated fatty acid supplementation on cognitive function outcomes in the elderly depends on the baseline omega-3 index. Food Funct 2023; 14:9506-9517. [PMID: 37840364 DOI: 10.1039/d3fo02959j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2023]
Abstract
Both epidemiological and preclinical studies have shown the benefits of n-3 polyunsaturated fatty acid (n-3 PUFA) on dementia and cognitive impairment, yet the results of clinical randomized controlled trials (RCTs) performed to date are conflicting. The difference in the baseline omega-3 index (O3i) of subjects is a potential cause for this disparity, yet this is usually ignored. The present meta-analysis aimed to evaluate the effect of n-3 polyunsaturated fatty acid (n-3 PUFA) on cognitive function in the elderly and the role of baseline O3i. A systematic literature search was conducted in PubMed, Embase, Cochrane Library, and Web of Science up to June 27th, 2023. The mean changes in the mini-mental state examination (MMSE) score were calculated as weighted mean differences by using a fixed-effects model. Fifteen random controlled trials were included in the meta-analysis. Pooled analysis showed that n-3 PUFA supplementation did not significantly improve the MMSE score (WMD = 0.04, [-0.08, 0.16]; Z = 0.62, P = 0.53; I2 = 0.00%, P(I2) = 0.49). Out of the 15 studies included in the meta-analysis, only 7 reported O3i at baseline and outcome, so only these 7 articles were used for subgroup analysis. Subgroup analysis showed that the MMSE score was significantly improved in the higher baseline O3i subgroup (WMD = 0.553, [0.01, 1.095]; I2 = 0.00%, P(I2) = 0.556) and higher O3i increment subgroup (WMD = 0.525, [0.023, 1.026]; I2 = 0.00%, P(I2) = 0.545). The overall effect demonstrated that n-3 PUFA supplementation exerted no improvement on global cognitive function. However, a higher baseline O3i and higher O3i increment were associated with an improvement in cognitive function in the elderly.
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Affiliation(s)
- Xin He
- Institute of Nutrition & Health, Qingdao University, Qingdao, China.
- School of Public Health and Emergency Management, Southern University of Science and Technology, Shenzhen, China
| | - Hongzhuan Yu
- Weifang Traditional Chinese Hospital, Weifang, China
| | - Jiacheng Fang
- Institute of Nutrition & Health, Qingdao University, Qingdao, China.
| | - Zhongshi Qi
- Institute of Nutrition & Health, Qingdao University, Qingdao, China.
| | - Shengjie Pei
- Institute of Nutrition & Health, Qingdao University, Qingdao, China.
| | - Bei Yan
- Institute of Nutrition & Health, Qingdao University, Qingdao, China.
| | - Run Liu
- Institute of Nutrition & Health, Qingdao University, Qingdao, China.
| | - Qiuzhen Wang
- Institute of Nutrition & Health, Qingdao University, Qingdao, China.
| | | | - Biao Liu
- National Center of Technology Innovation for Dairy, Hohhot 010110, China
| | - Lei Chen
- Institute of Nutrition & Health, Qingdao University, Qingdao, China.
| | - Duo Li
- Institute of Nutrition & Health, Qingdao University, Qingdao, China.
- Department of Food Science and Nutrition, Zhejiang University, China
- Department of Nutrition, Dietetics and Food, Monash University, Australia
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13
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Wang J, Zhao ML, Yan B. [Research on cone-beam CT of mandibular foramen location in children aged 7-10 years]. Zhonghua Kou Qiang Yi Xue Za Zhi 2023; 58:1103-1110. [PMID: 37885180 DOI: 10.3760/cma.j.cn112144-20230717-00007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 10/28/2023]
Abstract
Objective: Cone-beam CT (CBCT) images were used to investigate the relative position changes of mandibular foramen in the mandible of children and the relative position relationship with the occlusal plane, so as to provide clinical guidance for inferior alveolar nerve block (IANB) anesthesia of children. Methods: The CBCT data of 202 children aged 7-10 years in the image database of the First Affiliated Hospital of Zhengzhou University from March 2021 to February 2023 were included. Patients were divided into 4 groups according to age diffrences as 7-year-old, 8-year-old, 9-year-old and 10-year-old. There were 20 males and 22 females in the 7-year-old group, 31 males and 28 females in the 8-year-old group, 30 males and 26 females in the 9-year-old group, and 22 males and 23 females in the 10-year-old group, respectively. Forty-six adults aged 25-30 years were selected as control group, 24 males and 22 females included. The distance between the center point of mandibular foramen with the anterior edge of ascending ramus of mandible (MF-A), the posterior edge of the ascending ramus of mandible (MF-P) and the shortest distance between the center point of mandibular foramen with occlusal plane (MF-OP) were measured. The angle between the center point of the mandibular foramen with the sagittal plane of the mandibular first deciduous molar (or mandibular first premolar) and mandibular second deciduous molar (or mandibular second premolar) (∠A) was measured. The data of mandibular foramen were compared between the left and right sides and among different genders and different age groups. Results: The position of mandibular foramen in children aged 7-10 years maintained bilateral symmetry, and mandibular growth and development were relatively consistent between different genders (P>0.05). MF-A increased with age, from (15.83±1.28) mm in 7-year-old group to (17.10±1.60) mm in 10-year-old group gradually. There were significant differences in MF-A between the 10-year-old group with the 7-year-old group, the 8-year-old group [(15.98±1.53) mm] and the 9-year-old group [(16.43±1.49) mm] respectively (P<0.05). MF-P increased with age, from (9.12±1.17) mm in 7-year-old group to (11.25±1.60) mm in 10-year-old group. There were statistically significant differences in MF-P among all age groups (P<0.05). MF-OP increased with age, from below the plane (-0.24±2.31) mm in the 7-year-old group to above the plane (1.08±1.95) mm in the 10-year-old group. There were significant differences between the 10-year-old group with the 7-year-old group, the 8-year-old group [(-0.01±1.93) mm], and the 9-year-old group [(0.31±1.95) mm] (P<0.05). The ratio of MF-A to MF-P decreased as the age increased, from 1.77±0.30 in the 7-year-old group to 1.55±0.29 in the 10-year-old group. There were statistically significant differences in MF-A/MF-P among all age groups (P<0.05), except for between the 8-year-old group (1.66±0.19) and the 9-year-old group (1.65±0.28) (P>0.05). The ∠A of children in all age groups was significantly greater than the reference value (45°) (P<0.05), and there was no statistical significance among all groups (P>0.05). The differences of MF-A, MF-P, MF-OP, MF-A/MF-P and ∠A between children of all age groups and the control group were statistically significant (P<0.05). Conclusions: In children aged 7-10 years, the mandibular foramen is located behind the midpoint of the anteroposterior diameter of the mandibular ramus. With the increase of age, the mandibular foramen gradually moves from below the occlusal plane to above, and is flush with the occlusal plane at the age of 8 years. Compared with adults, the mandibular foramen in children is more backward and lower on the medial side of the mandibular ramus. When IANB is operated to children, the syringe can be moved distally from the contact area of the contralateral deciduous molars or premolars, so that the injection angle can be greater than the reference value 45° to improve the accuracy of IANB.
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Affiliation(s)
- J Wang
- Department of Pediatric Dentistry, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - M L Zhao
- Department of Implantology, Anyang Sixth People's Hospital, Anyang 455000, China
| | - B Yan
- Department of Oral Radiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
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Yan B, Liu SH, Hu TX, Tao LJ, Ye YP, Zhou Y, Du WP. [Acute myeloid leukemia (M(3)) with multiple myeloma: a case report]. Zhonghua Xue Ye Xue Za Zhi 2023; 44:869. [PMID: 38049345 PMCID: PMC10694078 DOI: 10.3760/cma.j.issn.0253-2727.2023.10.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Indexed: 12/06/2023]
Affiliation(s)
- B Yan
- Department of Clinical Laboratory Medicine, Nanyang Central Hospital, Nanyang 473000, China Nanyang Key Laboratory of Hematology, Nanyang 473000, China
| | - S H Liu
- Department of Hematology, Nanyang Central Hospital, Nanyang 473000, China
| | - T X Hu
- Department of Clinical Laboratory Medicine, Nanyang Central Hospital, Nanyang 473000, China Nanyang Key Laboratory of Hematology, Nanyang 473000, China
| | - L J Tao
- Department of Clinical Laboratory Medicine, Nanyang Central Hospital, Nanyang 473000, China Nanyang Key Laboratory of Hematology, Nanyang 473000, China
| | - Y P Ye
- Department of Clinical Laboratory Medicine, Nanyang Central Hospital, Nanyang 473000, China Nanyang Key Laboratory of Hematology, Nanyang 473000, China
| | - Y Zhou
- Department of Clinical Laboratory Medicine, Nanyang Central Hospital, Nanyang 473000, China Nanyang Key Laboratory of Hematology, Nanyang 473000, China
| | - W P Du
- Department of Clinical Laboratory Medicine, Nanyang Central Hospital, Nanyang 473000, China Nanyang Key Laboratory of Hematology, Nanyang 473000, China
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Zhang Y, Yang QY, Yang LS, Zhang J, Zhang K, Liu Y, Xu XD, Yang XY, Wang J, Yan B. Identification of diagnostic biomarkers and immuno-infiltration analysis for rheumatoid arthritis based on biological information and WGCNA. Eur Rev Med Pharmacol Sci 2023; 27:7470-7484. [PMID: 37667923 DOI: 10.26355/eurrev_202308_33398] [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: 09/06/2023]
Abstract
OBJECTIVE Rheumatoid arthritis (RA), as an autoimmune disease, poses a huge social and economic burden worldwide. Although the diagnosis of RA has been gradually improved, there is still a need to discover accurate and rapid biomarkers for diagnosis and therapy with a precise understanding of the disease. This study aimed to screen diagnostic biomarkers and analyze immune infiltration in RA based on weighted gene co-expression network analysis (WGCNA). MATERIALS AND METHODS Firstly, we screened the experimental and validation sets associated with RA from the GEO database. Crossover genes were obtained using differential genes (DEGs) and key modules in WGCNA. Subsequently, the crossover genes were constructed into protein-protein interaction (PPI) networks and screened to obtain hub genes. The receiver operating characteristic (ROC) curve assessment was performed to identify diagnostic biomarkers. In addition, we used the Cibersort algorithm for immuno-infiltration analysis and the DGidb database to search for drugs associated with diagnostic biomarkers. RESULTS In the end, 377 DEGs were identified, and the enrichment analysis revealed significant associations with the immune system. Blue modules in the WGCNA analysis were positively associated with the disease and were identified as key modules. ROC curves evaluated the four hub genes, which significantly differentiated RA from healthy controls and could be used as diagnostic biomarkers. In further analysis, we found that RA is closely related to immunity, and the search identified multiple drugs that hold promise for treating RA. CONCLUSIONS BCL2A1, PTGS2, FAS, and LY96 may be used as diagnostic biomarkers, which is significant for diagnosing and treating RA.
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Affiliation(s)
- Y Zhang
- First Clinical College, Shandong University of Traditional Chinese Medicine, Jinan, Shandong, China.
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Chen C, Yi X, Liu P, Li J, Yan B, Zhang D, Zhu L, Yu P, Li L, Zhang J, Kuang Y, Zhao S, Zhu W, Peng C, Chen X. CD147 Facilitates the Pathogenesis of Psoriasis through Glycolysis and H3K9me3 Modification in Keratinocytes. Research (Wash D C) 2023; 6:0167. [PMID: 37303600 PMCID: PMC10249783 DOI: 10.34133/research.0167] [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] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Accepted: 05/23/2023] [Indexed: 06/13/2023]
Abstract
Psoriasis is a chronic inflammatory skin disease featuring rapid proliferation of epidermal cells. Although elevated glycolysis flux has been reported in psoriasis, the molecular mechanisms underlying its pathogenesis remain unclear. We investigated the role of the integral membrane protein CD147 in psoriasis pathogenesis, observing its high expression in psoriatic skin lesions of humans and imiquimod (IMQ)-induced mouse models. In mouse models, genomic deletion of epidermal CD147 markedly attenuated IMQ-induced psoriatic inflammation. We found that CD147 interacted with glucose transporter 1 (Glut1). Depletion of CD147 in the epidermis blocked glucose uptake and glycolysis in vitro and in vivo. In CD147-knockout mice and keratinocytes, oxidative phosphorylation was increased in the epidermis, indicating CD147's pivotal role in glycolysis reprogramming during pathogenesis of psoriasis. Using non-targeted and targeted metabolic techniques, we found that epidermal deletion of CD147 significantly increased the production of carnitine and α-ketoglutaric acid (α-KG). Depletion of CD147 also increased transcriptional expression and activity of γ-butyrobetaine hydroxylase (γ-BBD/BBOX1), a crucial molecule for carnitine metabolism, by inhibiting histone trimethylations of H3K9. Our findings demonstrate that CD147 is critical in metabolic reprogramming through the α-KG-H3K9me3-BBOX1 axis in the pathogenesis of psoriasis, indicating that epidermal CD147 is a promising target for psoriasis treatment.
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Affiliation(s)
- Chao Chen
- Department of Dermatology, Xiangya Hospital,
Central South University, Changsha, Hunan, China
- National Engineering Research Center of Personalized Diagnostic and Therapeutic Technology, Changsha, Hunan, China
- Furong Laboratory, Changsha, Hunan, China
- Hunan Key Laboratory of Skin Cancer and Psoriasis, Hunan Engineering Research Center of Skin Health and Disease, Xiangya Hospital,
Central South University, Changsha, Hunan, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital,
Central South University, Changsha, Hunan, China
| | - Xiaoqing Yi
- Department of Dermatology, Xiangya Hospital,
Central South University, Changsha, Hunan, China
- National Engineering Research Center of Personalized Diagnostic and Therapeutic Technology, Changsha, Hunan, China
- Furong Laboratory, Changsha, Hunan, China
- Hunan Key Laboratory of Skin Cancer and Psoriasis, Hunan Engineering Research Center of Skin Health and Disease, Xiangya Hospital,
Central South University, Changsha, Hunan, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital,
Central South University, Changsha, Hunan, China
| | - Panpan Liu
- Department of Dermatology, Xiangya Hospital,
Central South University, Changsha, Hunan, China
- National Engineering Research Center of Personalized Diagnostic and Therapeutic Technology, Changsha, Hunan, China
- Furong Laboratory, Changsha, Hunan, China
- Hunan Key Laboratory of Skin Cancer and Psoriasis, Hunan Engineering Research Center of Skin Health and Disease, Xiangya Hospital,
Central South University, Changsha, Hunan, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital,
Central South University, Changsha, Hunan, China
| | - Jie Li
- Department of Dermatology, Xiangya Hospital,
Central South University, Changsha, Hunan, China
- National Engineering Research Center of Personalized Diagnostic and Therapeutic Technology, Changsha, Hunan, China
- Furong Laboratory, Changsha, Hunan, China
- Hunan Key Laboratory of Skin Cancer and Psoriasis, Hunan Engineering Research Center of Skin Health and Disease, Xiangya Hospital,
Central South University, Changsha, Hunan, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital,
Central South University, Changsha, Hunan, China
| | - Bei Yan
- Department of Dermatology, Xiangya Hospital,
Central South University, Changsha, Hunan, China
- National Engineering Research Center of Personalized Diagnostic and Therapeutic Technology, Changsha, Hunan, China
- Furong Laboratory, Changsha, Hunan, China
- Hunan Key Laboratory of Skin Cancer and Psoriasis, Hunan Engineering Research Center of Skin Health and Disease, Xiangya Hospital,
Central South University, Changsha, Hunan, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital,
Central South University, Changsha, Hunan, China
| | - Detian Zhang
- Department of Dermatology, Xiangya Hospital,
Central South University, Changsha, Hunan, China
- National Engineering Research Center of Personalized Diagnostic and Therapeutic Technology, Changsha, Hunan, China
- Furong Laboratory, Changsha, Hunan, China
- Hunan Key Laboratory of Skin Cancer and Psoriasis, Hunan Engineering Research Center of Skin Health and Disease, Xiangya Hospital,
Central South University, Changsha, Hunan, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital,
Central South University, Changsha, Hunan, China
| | - Lei Zhu
- Department of Dermatology, Xiangya Hospital,
Central South University, Changsha, Hunan, China
- National Engineering Research Center of Personalized Diagnostic and Therapeutic Technology, Changsha, Hunan, China
- Furong Laboratory, Changsha, Hunan, China
- Hunan Key Laboratory of Skin Cancer and Psoriasis, Hunan Engineering Research Center of Skin Health and Disease, Xiangya Hospital,
Central South University, Changsha, Hunan, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital,
Central South University, Changsha, Hunan, China
| | - Pian Yu
- Department of Dermatology, Xiangya Hospital,
Central South University, Changsha, Hunan, China
- National Engineering Research Center of Personalized Diagnostic and Therapeutic Technology, Changsha, Hunan, China
- Furong Laboratory, Changsha, Hunan, China
- Hunan Key Laboratory of Skin Cancer and Psoriasis, Hunan Engineering Research Center of Skin Health and Disease, Xiangya Hospital,
Central South University, Changsha, Hunan, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital,
Central South University, Changsha, Hunan, China
| | - Lei Li
- Department of Dermatology, Xiangya Hospital,
Central South University, Changsha, Hunan, China
- National Engineering Research Center of Personalized Diagnostic and Therapeutic Technology, Changsha, Hunan, China
- Furong Laboratory, Changsha, Hunan, China
- Hunan Key Laboratory of Skin Cancer and Psoriasis, Hunan Engineering Research Center of Skin Health and Disease, Xiangya Hospital,
Central South University, Changsha, Hunan, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital,
Central South University, Changsha, Hunan, China
| | - Jiaxiong Zhang
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital,
Central South University, Changsha, Hunan, China
| | - Yehong Kuang
- Department of Dermatology, Xiangya Hospital,
Central South University, Changsha, Hunan, China
- National Engineering Research Center of Personalized Diagnostic and Therapeutic Technology, Changsha, Hunan, China
- Furong Laboratory, Changsha, Hunan, China
- Hunan Key Laboratory of Skin Cancer and Psoriasis, Hunan Engineering Research Center of Skin Health and Disease, Xiangya Hospital,
Central South University, Changsha, Hunan, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital,
Central South University, Changsha, Hunan, China
| | - Shuang Zhao
- Department of Dermatology, Xiangya Hospital,
Central South University, Changsha, Hunan, China
- National Engineering Research Center of Personalized Diagnostic and Therapeutic Technology, Changsha, Hunan, China
- Furong Laboratory, Changsha, Hunan, China
- Hunan Key Laboratory of Skin Cancer and Psoriasis, Hunan Engineering Research Center of Skin Health and Disease, Xiangya Hospital,
Central South University, Changsha, Hunan, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital,
Central South University, Changsha, Hunan, China
| | - Wu Zhu
- Department of Dermatology, Xiangya Hospital,
Central South University, Changsha, Hunan, China
- National Engineering Research Center of Personalized Diagnostic and Therapeutic Technology, Changsha, Hunan, China
- Furong Laboratory, Changsha, Hunan, China
- Hunan Key Laboratory of Skin Cancer and Psoriasis, Hunan Engineering Research Center of Skin Health and Disease, Xiangya Hospital,
Central South University, Changsha, Hunan, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital,
Central South University, Changsha, Hunan, China
| | - Cong Peng
- Department of Dermatology, Xiangya Hospital,
Central South University, Changsha, Hunan, China
- National Engineering Research Center of Personalized Diagnostic and Therapeutic Technology, Changsha, Hunan, China
- Furong Laboratory, Changsha, Hunan, China
- Hunan Key Laboratory of Skin Cancer and Psoriasis, Hunan Engineering Research Center of Skin Health and Disease, Xiangya Hospital,
Central South University, Changsha, Hunan, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital,
Central South University, Changsha, Hunan, China
| | - Xiang Chen
- Department of Dermatology, Xiangya Hospital,
Central South University, Changsha, Hunan, China
- National Engineering Research Center of Personalized Diagnostic and Therapeutic Technology, Changsha, Hunan, China
- Furong Laboratory, Changsha, Hunan, China
- Hunan Key Laboratory of Skin Cancer and Psoriasis, Hunan Engineering Research Center of Skin Health and Disease, Xiangya Hospital,
Central South University, Changsha, Hunan, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital,
Central South University, Changsha, Hunan, China
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17
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Yan B, Liu J. Molecular framework for designing Fluoroclay with enhanced affinity for per- and polyfluoroalkyl substances. Water Res X 2023; 19:100175. [PMID: 36950253 PMCID: PMC10026042 DOI: 10.1016/j.wroa.2023.100175] [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] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Revised: 03/07/2023] [Accepted: 03/08/2023] [Indexed: 06/18/2023]
Abstract
Motivated by the need for enhancing sorbent affinity for per- and polyfluoroalkyl substances (PFAS), we demonstrate the possibility of rationally designing clay-based material (FluoroClay) with a pre-selected intercalant and predicting sorbent performance using all-atom molecular dynamics simulation coupled with density functional theory-based computation. Perfluorohexyldodecane quaternary ammonium (F6H12A) as the selected intercalant revealed significant enhancement in adsorption affinity for hard-to-remove compounds, including perfluorobutane sulfonate (PFBS) and polyfluoroalkylethers (GenX and ADONA). The adsorption is thermodynamically entropy-driven and dominated by the hydrophobic effect. The incorporation of fluorine atoms into clay intercalants gave rise to a hydrophobic and fluorophilic "cavity" structure for targeted PFAS. The self-assembly of intercalant-PFAS under the negative electric field of clay sheets created a unique configuration that significantly enlarged the contact surface area between PFAS and F6H12A and was quantitatively driven by their intermolecular interactions, e.g., CF chain-CH chain, CF chain-CF chain, and charge-CH chain interactions. Collectively, our work demonstrated a new approach to select fluorinated functionality for designing a new adsorbent and estimating its performance via molecular simulation. It also provided an in-depth understanding of the underlying fundamental physics and chemistry in the adsorption of PFAS, suggesting a new strategy for PFAS removal, particularly for short-chain PFAS and new chemical alternatives.
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Affiliation(s)
- Bei Yan
- Department of Civil Engineering, McGill University, 817 Sherbrooke Street West, Montreal, Quebec H3A 0C3, Canada
| | - Jinxia Liu
- Department of Civil Engineering, McGill University, 817 Sherbrooke Street West, Montreal, Quebec H3A 0C3, Canada
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18
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Wei W, Liu JQ, Qi Y, Li XM, Meng FY, Ren QZ, Yan B, Wang ZL, Zhang QH. [Analysis of the efficacy of endoscopic transnasal surgery for sinonasal and skull base adenoid cystic carcinoma]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2023; 58:438-444. [PMID: 37100752 DOI: 10.3760/cma.j.cn115330-20221107-00666] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 04/28/2023]
Abstract
Objective: To evaluate the efficacy of endoscopic transnasal surgery for sinonasal and skull base adenoid cystic carcinoma (ACC), and to analyze the prognostic factors. Methods: Data of 82 patients (43 females and 39 males, at a median age of 49 years old) with sinonasal and skull base ACC who were admitted to XuanWu Hospital, Capital Medical University between June 2007 and June 2021 were analyzed retrospectively. The patients were staged according to American Joint Committee on Cancer (AJCC) 8th edition. The disease overall survival(OS) and disease-free survival(DFS) rates were calculated by Kaplan-Meier analysis. Cox regression model was used for multivariate prognostic analysis. Results: There were 4 patients with stage Ⅱ, 14 patients with stage Ⅲ, and 64 patients with stage Ⅳ. The treatment strategies included purely endoscopic surgery (n=42), endoscopic surgery plus radiotherapy (n=32) and endoscopic surgery plus radiochemotherapy (n=8). Followed up for 8 to 177 months, the 5-year OS and DFS rates was 63.0% and 51.6%, respectively. The 10-year OS and DFS rates was 51.2% and 31.8%, respectively. The multivariate Cox regression analysis showed that late T stage and internal carotid artery (ICA) involvement were the independent prognostic factors for survival in sinonasal and skull base ACC (all P<0.05). The OS of patients who received surgery or surgery plus radiotherapy was significantly higher than that of patients who received surgery plus radiochemotherapy (all P<0.05). Conclusions: Endoscopic transonasal surgery or combing with radiotherapy is an effective procedure for the treatment of sinonasal and skull base ACC. Late T stage and ICA involvement indicate poor prognosis.
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Affiliation(s)
- W Wei
- Department of Otorhinolaryngology Head and Neck Surgery, XuanWu Hospital, Capital Medical University, Beijing 100053, China
| | - J Q Liu
- Department of Otorhinolaryngology Head and Neck Surgery, XuanWu Hospital, Capital Medical University, Beijing 100053, China
| | - Y Qi
- Department of Otorhinolaryngology Head and Neck Surgery, XuanWu Hospital, Capital Medical University, Beijing 100053, China
| | - X M Li
- Department of Otorhinolaryngology Head and Neck Surgery, XuanWu Hospital, Capital Medical University, Beijing 100053, China
| | - F Y Meng
- Department of Otorhinolaryngology Head and Neck Surgery, XuanWu Hospital, Capital Medical University, Beijing 100053, China
| | - Q Z Ren
- Department of Otorhinolaryngology Head and Neck Surgery, XuanWu Hospital, Capital Medical University, Beijing 100053, China
| | - B Yan
- Department of Otorhinolaryngology Head and Neck Surgery, XuanWu Hospital, Capital Medical University, Beijing 100053, China
| | - Z L Wang
- Department of Otorhinolaryngology Head and Neck Surgery, XuanWu Hospital, Capital Medical University, Beijing 100053, China
| | - Q H Zhang
- Department of Otorhinolaryngology Head and Neck Surgery, XuanWu Hospital, Capital Medical University, Beijing 100053, China
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19
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Zhang KJ, Zhang HW, Yan B. [Research progress in immunomodulation in orthodontic tooth movement]. Zhonghua Kou Qiang Yi Xue Za Zhi 2023; 58:380-385. [PMID: 37005787 DOI: 10.3760/cma.j.cn112144-20221031-00561] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Subscribe] [Scholar Register] [Indexed: 04/04/2023]
Abstract
In the process of orthodontic tooth movement, the secretion of cytokines by immune cells or cell-cell interaction affects the regulation of osteoclast and osteoblast differentiation. Increasingly, studies have focused on the role in the immune system in orthodontic bone remodeling. Based on the biological role of different immune cells or cytokines, this article briefly presents the research progress of immunomodulation in orthodontic tooth movement and future perspective, hopefully providing a deeper and more comprehensive understanding of the biological mechanism in orthodontic tooth movement.
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Affiliation(s)
- K J Zhang
- Department of Orthodontics, Affiliated Hospital of Stomatology, Nanjing Medical University & Jiangsu Province Key Laboratory of Oral Diseases & Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing 210029, China
| | - H W Zhang
- Department of Pathophysiology, School of Basic Medical Sciences, Nanjing Medical University, Nanjing 211166, China
| | - B Yan
- Department of Orthodontics, Affiliated Hospital of Stomatology, Nanjing Medical University & Jiangsu Province Key Laboratory of Oral Diseases & Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing 210029, China
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20
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Xi X, Yan B, Yang L, Meng Y, Zhu ZX, Chen JM, Wang Z, Zhou P, Shum PP, Yang Y, Chen H, Mandal S, Liu GG, Zhang B, Gao Z. Topological antichiral surface states in a magnetic Weyl photonic crystal. Nat Commun 2023; 14:1991. [PMID: 37031270 PMCID: PMC10082803 DOI: 10.1038/s41467-023-37710-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Accepted: 03/28/2023] [Indexed: 04/10/2023] Open
Abstract
Chiral edge states that propagate oppositely at two parallel strip edges are a hallmark feature of Chern insulators which were first proposed in the celebrated two-dimensional (2D) Haldane model. Subsequently, counterintuitive antichiral edge states that propagate in the same direction at two parallel strip edges were discovered in a 2D modified Haldane model. Recently, chiral surface states, the 2D extension of one-dimensional (1D) chiral edge states, have also been observed in a photonic analogue of a 3D Haldane model. However, despite many recent advances in antichiral edge states and chiral surface states, antichiral surface states, the 2D extension of 1D antichiral edge states, have never been realized in any physical system. Here, we report the experimental observation of antichiral surface states by constructing a 3D modified Haldane model in a magnetic Weyl photonic crystal with two pairs of frequency-shifted Weyl points (WPs). The 3D magnetic Weyl photonic crystal consists of gyromagnetic cylinders with opposite magnetization in different triangular sublattices of a 3D honeycomb lattice. Using microwave field-mapping measurements, unique properties of antichiral surface states have been observed directly, including the antichiral robust propagation, tilted surface dispersion, a single open Fermi arc connecting two projected WPs and a single Fermi loop winding around the surface Brillouin zone (BZ). These results extend the scope of antichiral topological states and enrich the family of magnetic Weyl semimetals.
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Affiliation(s)
- Xiang Xi
- Department of Electronic and Electrical Engineering, Southern University of Science and Technology, 518055, Shenzhen, China
| | - Bei Yan
- Department of Electronic and Electrical Engineering, Southern University of Science and Technology, 518055, Shenzhen, China
| | - Linyun Yang
- Department of Electronic and Electrical Engineering, Southern University of Science and Technology, 518055, Shenzhen, China
| | - Yan Meng
- Department of Electronic and Electrical Engineering, Southern University of Science and Technology, 518055, Shenzhen, China
| | - Zhen-Xiao Zhu
- Department of Electronic and Electrical Engineering, Southern University of Science and Technology, 518055, Shenzhen, China
| | - Jing-Ming Chen
- Department of Electronic and Electrical Engineering, Southern University of Science and Technology, 518055, Shenzhen, China
| | - Ziyao Wang
- Department of Electronic and Electrical Engineering, Southern University of Science and Technology, 518055, Shenzhen, China
| | - Peiheng Zhou
- National Engineering Research Center of Electromagnetic Radiation Control Materials, Key Laboratory of Multi-spectral Absorbing Materials and Structures of Ministry of Education, University of Electronic Science and Technology of China, 611731, Chengdu, China
| | - Perry Ping Shum
- Department of Electronic and Electrical Engineering, Southern University of Science and Technology, 518055, Shenzhen, China
| | - Yihao Yang
- Interdisciplinary Center for Quantum Information, State Key Laboratory of Modern Optical Instrumentation, ZJU-Hangzhou Global Science and Technology Innovation Center, College of Information Science and Electronic Engineering, ZJU-UIUC Institute, Zhejiang University, 310027, Hangzhou, China
| | - Hongsheng Chen
- Interdisciplinary Center for Quantum Information, State Key Laboratory of Modern Optical Instrumentation, ZJU-Hangzhou Global Science and Technology Innovation Center, College of Information Science and Electronic Engineering, ZJU-UIUC Institute, Zhejiang University, 310027, Hangzhou, China
| | - Subhaskar Mandal
- Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore, 637371, Singapore
| | - Gui-Geng Liu
- Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore, 637371, Singapore.
| | - Baile Zhang
- Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore, 637371, Singapore.
- Centre for Disruptive Photonic Technologies, The Photonics Institute, Nanyang Technological University, Singapore, 639798, Singapore.
| | - Zhen Gao
- Department of Electronic and Electrical Engineering, Southern University of Science and Technology, 518055, Shenzhen, China.
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21
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Liu P, Zhou Y, Chen C, Yan B, Li L, Zhu W, Li J, Chen M, Su J, Kuang Y, Chen X, Peng C. Lysophosphatidylcholine facilitates the pathogenesis of psoriasis through activating keratinocytes and T cells differentiation via glycolysis. J Eur Acad Dermatol Venereol 2023. [PMID: 37013729 DOI: 10.1111/jdv.19088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2022] [Accepted: 03/08/2023] [Indexed: 04/05/2023]
Abstract
BACKGROUND Although abnormal metabolism plays a critical role in the pathogenesis of psoriasis, the details are unclear. OBJECTIVES Here, we identified to explore the role and mechanism of lysophosphatidylcholine (LPC) on the pathogenesis of psoriasis. METHODS The level of LPC in plasma and skin lesions and the expression of G2A on skin lesions of psoriasis patients were detected by enzyme-linked immunosorbent assay, liquid chromatography-tandem mass spectrometry, or immunohistochemistry, respectively. The glycolysis in the skin lesions of imiquimod (IMQ)-induced psoriasis-like mouse model was detected by extracellular acidification rate. LPC was subcutaneously injected into IMQ-treated mouse ears, and the phenotype as well as the glycolysis were evaluated. Exploring the effects and mechanism of LPC on keratinocytes and CD4+ T cells by culturing primary keratinocytes and CD4+ T in vitro. RESULTS We found that LPC was significantly increased both in the plasma and skin lesions of psoriatic patients, while G2A, exerting an essential role in LPC inducing biological functions, was increased in psoriatic lesions. The abundance of LPC was positively correlated with glycolytic activity in the psoriasis-like mouse model. LPC treatment facilitated psoriasis-like inflammation and glycolytic activity in skin lesions. Mechanistically, the LPC/G2A axis significantly triggered glycolytic activity and produced inflammatory factors in keratinocytes, and blockade of glycolysis abrogated LPC-induced expression of inflammatory mediators in keratinocytes. LPC activated STAT1, resulting in recognition and binding to the promoters of GCK and PKLR, which are glycolytic rate-limiting enzymes. Furthermore, the LPC/G2A axis directly benefited Th1 differentiation, which was dependent on LPC-induced glycolytic activity. Notably, LPC indirectly facilitated Th17 differentiation by inducing the secretion of IL-1β in keratinocytes-T cells coculture system. CONCLUSIONS Taken together, our findings revealed the role of the LPC/G2A axis in the pathogenesis of psoriasis; targeting LPC/G2A is a potential strategy for psoriasis therapy.
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Affiliation(s)
- Panpan Liu
- Department of Dermatology, Xiangya Hospital, Central South University, No.87 Xiangya Road, Changsha, Hunan, 410008, China
- Furong Laboratory, Changsha, Hunan, 410008, China
- Hunan Key Laboratory of Skin Cancer and Psoriasis, Changsha, Hunan, 410008, China
- National Engineering Research Center of Personalized Diagnostic and Therapeutic Technology, Changsha, Hunan, 410008, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University
| | - Youyou Zhou
- Department of Dermatology, Xiangya Hospital, Central South University, No.87 Xiangya Road, Changsha, Hunan, 410008, China
- Furong Laboratory, Changsha, Hunan, 410008, China
- Hunan Key Laboratory of Skin Cancer and Psoriasis, Changsha, Hunan, 410008, China
- National Engineering Research Center of Personalized Diagnostic and Therapeutic Technology, Changsha, Hunan, 410008, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University
| | - Chao Chen
- Department of Dermatology, Xiangya Hospital, Central South University, No.87 Xiangya Road, Changsha, Hunan, 410008, China
- Furong Laboratory, Changsha, Hunan, 410008, China
- Hunan Key Laboratory of Skin Cancer and Psoriasis, Changsha, Hunan, 410008, China
- National Engineering Research Center of Personalized Diagnostic and Therapeutic Technology, Changsha, Hunan, 410008, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University
| | - Bei Yan
- Department of Dermatology, Xiangya Hospital, Central South University, No.87 Xiangya Road, Changsha, Hunan, 410008, China
- Furong Laboratory, Changsha, Hunan, 410008, China
- Hunan Key Laboratory of Skin Cancer and Psoriasis, Changsha, Hunan, 410008, China
- National Engineering Research Center of Personalized Diagnostic and Therapeutic Technology, Changsha, Hunan, 410008, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University
| | - Lei Li
- Department of Dermatology, Xiangya Hospital, Central South University, No.87 Xiangya Road, Changsha, Hunan, 410008, China
- Furong Laboratory, Changsha, Hunan, 410008, China
- Hunan Key Laboratory of Skin Cancer and Psoriasis, Changsha, Hunan, 410008, China
- National Engineering Research Center of Personalized Diagnostic and Therapeutic Technology, Changsha, Hunan, 410008, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University
| | - Wu Zhu
- Department of Dermatology, Xiangya Hospital, Central South University, No.87 Xiangya Road, Changsha, Hunan, 410008, China
- Furong Laboratory, Changsha, Hunan, 410008, China
- Hunan Key Laboratory of Skin Cancer and Psoriasis, Changsha, Hunan, 410008, China
- National Engineering Research Center of Personalized Diagnostic and Therapeutic Technology, Changsha, Hunan, 410008, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University
| | - Jie Li
- Department of Dermatology, Xiangya Hospital, Central South University, No.87 Xiangya Road, Changsha, Hunan, 410008, China
- Furong Laboratory, Changsha, Hunan, 410008, China
- Hunan Key Laboratory of Skin Cancer and Psoriasis, Changsha, Hunan, 410008, China
- National Engineering Research Center of Personalized Diagnostic and Therapeutic Technology, Changsha, Hunan, 410008, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University
| | - MingLiang Chen
- Department of Dermatology, Xiangya Hospital, Central South University, No.87 Xiangya Road, Changsha, Hunan, 410008, China
- Furong Laboratory, Changsha, Hunan, 410008, China
- Hunan Key Laboratory of Skin Cancer and Psoriasis, Changsha, Hunan, 410008, China
- National Engineering Research Center of Personalized Diagnostic and Therapeutic Technology, Changsha, Hunan, 410008, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University
| | - Juan Su
- Department of Dermatology, Xiangya Hospital, Central South University, No.87 Xiangya Road, Changsha, Hunan, 410008, China
- Furong Laboratory, Changsha, Hunan, 410008, China
- Hunan Key Laboratory of Skin Cancer and Psoriasis, Changsha, Hunan, 410008, China
- National Engineering Research Center of Personalized Diagnostic and Therapeutic Technology, Changsha, Hunan, 410008, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University
| | - Yehong Kuang
- Department of Dermatology, Xiangya Hospital, Central South University, No.87 Xiangya Road, Changsha, Hunan, 410008, China
- Furong Laboratory, Changsha, Hunan, 410008, China
- Hunan Key Laboratory of Skin Cancer and Psoriasis, Changsha, Hunan, 410008, China
- National Engineering Research Center of Personalized Diagnostic and Therapeutic Technology, Changsha, Hunan, 410008, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University
| | - Xiang Chen
- Department of Dermatology, Xiangya Hospital, Central South University, No.87 Xiangya Road, Changsha, Hunan, 410008, China
- Furong Laboratory, Changsha, Hunan, 410008, China
- Hunan Key Laboratory of Skin Cancer and Psoriasis, Changsha, Hunan, 410008, China
- National Engineering Research Center of Personalized Diagnostic and Therapeutic Technology, Changsha, Hunan, 410008, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University
| | - Cong Peng
- Department of Dermatology, Xiangya Hospital, Central South University, No.87 Xiangya Road, Changsha, Hunan, 410008, China
- Furong Laboratory, Changsha, Hunan, 410008, China
- Hunan Key Laboratory of Skin Cancer and Psoriasis, Changsha, Hunan, 410008, China
- National Engineering Research Center of Personalized Diagnostic and Therapeutic Technology, Changsha, Hunan, 410008, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University
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22
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Chen Y, Yan B, You J. 120P Neoadjuvant immunochemotherapy of pembrolizumab plus chemotherapy in resectable non-small cell lung cancer. J Thorac Oncol 2023. [DOI: 10.1016/s1556-0864(23)00375-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/04/2023]
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23
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Song R, Yan B, Xie J, Zhou L, Xu R, Zhou JM, Ji XH, Yi ZL. Comparative proteome profiles of Polygonatum cyrtonema Hua rhizomes (Rhizoma Ploygonati) in response to different levels of cadmium stress. BMC Plant Biol 2023; 23:149. [PMID: 36935490 PMCID: PMC10026435 DOI: 10.1186/s12870-023-04162-6] [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] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Accepted: 03/10/2023] [Indexed: 06/18/2023]
Abstract
BACKGROUND The Polygonatum cyrtonema Hua rhizomes (also known as Rhizoma Polygonati, RP) are consumed for their health benefits. The main source of the RP is wild P. cyrtonema populations in the Hunan province of China. However, the soil Cadmium (Cd) content in Huanan is increasing, thus increasing the risks of Cd accumulation in RP which may end up in the human food chain. To understand the mechanism of Cd accumulation and resistance in P. cyrtonema, we subjected P. cyrtonema plants to four levels of Cd stress [(D2) 1, (D3) 2, (D4) 4, and (D5) 8 mg/kg)] compared to (D1) 0.5 mg/kg. RESULTS The increase in soil Cd content up to 4 mg/kg resulted in a significant increase in tissue (root hair, rhizome, stem, and leaf) Cd content. The increase in Cd concentration variably affected the antioxidant enzyme activities. We could identify 14,171 and 12,115 protein groups and peptides, respectively. There were 193, 227, 260, and 163 differentially expressed proteins (DEPs) in D2, D3, D4, and D5, respectively, compared to D1. The number of downregulated DEPs increased with an increase in Cd content up to 4 mg/kg. These downregulated proteins belonged to sugar biosynthesis, amino acid biosynthesis-related pathways, and secondary metabolism-related pathways. Our results indicate that Cd stress increases ROS generation, against which, different ROS scavenging proteins are upregulated in P. cyrtonema. Moreover, Cd stress affected the expression of lipid transport and assembly, glycolysis/gluconeogenesis, sugar biosynthesis, and ATP generation. CONCLUSION These results suggest that an increase in soil Cd content may end up in Huangjing. Cadmium stress initiates expression changes in multiple pathways related to energy metabolism, sugar biosynthesis, and secondary metabolite biosynthesis. The proteins involved in these pathways are potential candidates for manipulation and development of Cd stress-tolerant genotypes.
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Affiliation(s)
- Rong Song
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha, 410128, Hunan, China
- Institute of Agricultural Environment and Ecology, Hunan Academy of Agricultural Sciences, Changsha, 410125, Hunan, China
| | - Bei Yan
- College of Plant Protection, Hunan Agricultural University, Changsha, 410128, Hunan, China
| | - Jin Xie
- Institute of Agricultural Environment and Ecology, Hunan Academy of Agricultural Sciences, Changsha, 410125, Hunan, China
| | - Li Zhou
- Institute of Agricultural Environment and Ecology, Hunan Academy of Agricultural Sciences, Changsha, 410125, Hunan, China
| | - Rui Xu
- Institute of Agricultural Environment and Ecology, Hunan Academy of Agricultural Sciences, Changsha, 410125, Hunan, China
| | - Jia Min Zhou
- Institute of Agricultural Environment and Ecology, Hunan Academy of Agricultural Sciences, Changsha, 410125, Hunan, China
| | - Xiong Hui Ji
- Institute of Agricultural Environment and Ecology, Hunan Academy of Agricultural Sciences, Changsha, 410125, Hunan, China
| | - Zi Li Yi
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha, 410128, Hunan, China.
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Liu N, Wang X, Zhu J, Basu S, Wei Y, Yan B, Wang H, Colon-Gonzalez F, Feng HP, Sun F, Li H, Zang Y. A single- and multiple-dose study to characterize the pharmacokinetics, safety, and tolerability of ceftolozane/tazobactam in healthy Chinese participants. Int J Antimicrob Agents 2023; 61:106717. [PMID: 36640850 DOI: 10.1016/j.ijantimicag.2023.106717] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Revised: 10/07/2022] [Accepted: 12/31/2022] [Indexed: 01/13/2023]
Abstract
Ceftolozane/tazobactam (C/T) is approved in several countries to treat complicated urinary tract infections, complicated intra-abdominal infections, and nosocomial pneumonia. There is a paucity of pharmacokinetics and safety data for C/T in Chinese participants. This study evaluated the pharmacokinetics, safety, and tolerability of C/T in 12 healthy Chinese participants after three single administrations of increasing doses (0.75 g, 1.5 g, and 3 g) and multiple administrations of 1.5 g C/T every 8 h for 3 days. After single doses, maximum concentrations of ceftolozane and tazobactam were reached by the end of the 1-h infusion and declined in a biphasic manner thereafter, with mean half-lives of 1.9-2.2 h and 0.74-0.95 h, respectively. Volume of distribution (Vd) and renal clearance (CL) were consistent across the three single-dose levels for ceftolozane (Vd, 15.8-19.5 L; CL, 5.68-6.09 L/h) and tazobactam (Vd, 23.3-28.6 L; CL, 20.8-23.5 L/h). Area under the concentration-time curve (AUC) extrapolated to infinity (ceftolozane, 88.1-328 h∙μg/mL; tazobactam, 10.7-48.0 h∙μg/mL) increased in a dose-dependent manner. After multiple doses over 3 days, AUC from time 0 to 8 h, and concentration at the end of infusion were similar to single-dose measurements (geometric mean ratios, 0.87-1.01 for both drugs). C/T was well tolerated, with no serious adverse events or discontinuations reported; all adverse events were mild. The pharmacokinetics and safety/tolerability of C/T in healthy Chinese participants was comparable to that in previous studies in other populations, supporting the use of C/T for the treatment of Chinese patients.
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Affiliation(s)
- Na Liu
- Beijing Haidian Hospital (Haidian Section of Peking University Third Hospital), China
| | | | - Jixiang Zhu
- Peking University Third Hospital, Beijing, China
| | | | - Yudong Wei
- Peking University Third Hospital, Beijing, China
| | | | | | | | | | | | - Haiyan Li
- Peking University Third Hospital, Beijing, China.
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Liu N, Zhang J, Yan M, Chen L, Wu J, Tao Q, Yan B, Chen X, Peng C. Supplementation with α-ketoglutarate improved the efficacy of anti-PD1 melanoma treatment through epigenetic modulation of PD-L1. Cell Death Dis 2023; 14:170. [PMID: 36854755 PMCID: PMC9974984 DOI: 10.1038/s41419-023-05692-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2022] [Revised: 02/15/2023] [Accepted: 02/15/2023] [Indexed: 03/02/2023]
Abstract
Patients with advanced melanoma have shown an improved outlook after anti-PD1 therapy, but the low response rate restricts clinical benefit; therefore, enhancing anti-PD1 therapeutic efficacy remains a major challenge. Here, our findings showed a significantly increased abundance of α-KG in healthy controls, anti-PD1-sensitive melanoma-bearing mice, and anti-PD1-sensitive melanoma patients; moreover, supplementation with α-KG enhanced the efficacy of anti-PD1 immunotherapy and increased PD-L1 expression in melanoma tumors via STAT1/3. We also found that supplementation with α-KG significantly increased the activity of the methylcytosine dioxygenases TET2/3, which led to an increased 5-hydroxymethylcytosine (5-hmC) level in the PD-L1 promoter. As a consequence, STAT1/3 binding to the PD-L1 promoter was stabilized to upregulate PD-L1 expression. Importantly, single-cell sequencing of preclinical samples and analysis of clinical data revealed that TET2/3-STAT1/3-CD274 signaling was associated with sensitivity to anti-PD1 treatment in melanoma. Taken together, our results provide novel insight into α-KG's function in anti-PD1 treatment of melanoma and suggest supplementation with α-KG as a novel promising strategy to improve the efficacy of anti-PD1 therapy.
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Affiliation(s)
- Nian Liu
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China
- Furong Laboratory, Xiangya Hospital, Central South University, Changsha, China
- Hunan Key Laboratory of Skin Cancer and Psoriasis, Human Engineering Research Center of Skin Health and Disease, Xiangya Hospital, Central South University, Changsha, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Jianglin Zhang
- Department of Dermatology, 2nd Clinical Medical College of Jinan University, Changsha, China
| | - Mingjie Yan
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, China
| | - Lihui Chen
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, China
| | - Jie Wu
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China
- Furong Laboratory, Xiangya Hospital, Central South University, Changsha, China
- Hunan Key Laboratory of Skin Cancer and Psoriasis, Human Engineering Research Center of Skin Health and Disease, Xiangya Hospital, Central South University, Changsha, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Qian Tao
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China
- Furong Laboratory, Xiangya Hospital, Central South University, Changsha, China
- Hunan Key Laboratory of Skin Cancer and Psoriasis, Human Engineering Research Center of Skin Health and Disease, Xiangya Hospital, Central South University, Changsha, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Bei Yan
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China
- Furong Laboratory, Xiangya Hospital, Central South University, Changsha, China
- Hunan Key Laboratory of Skin Cancer and Psoriasis, Human Engineering Research Center of Skin Health and Disease, Xiangya Hospital, Central South University, Changsha, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Xiang Chen
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China.
- Furong Laboratory, Xiangya Hospital, Central South University, Changsha, China.
- Hunan Key Laboratory of Skin Cancer and Psoriasis, Human Engineering Research Center of Skin Health and Disease, Xiangya Hospital, Central South University, Changsha, China.
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China.
| | - Cong Peng
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China.
- Furong Laboratory, Xiangya Hospital, Central South University, Changsha, China.
- Hunan Key Laboratory of Skin Cancer and Psoriasis, Human Engineering Research Center of Skin Health and Disease, Xiangya Hospital, Central South University, Changsha, China.
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China.
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Meng Y, Lin S, Shi BJ, Wei B, Yang L, Yan B, Zhu Z, Xi X, Wang Y, Ge Y, Yuan SQ, Chen J, Liu GG, Sun HX, Chen H, Yang Y, Gao Z. Spinful Topological Phases in Acoustic Crystals with Projective PT Symmetry. Phys Rev Lett 2023; 130:026101. [PMID: 36706409 DOI: 10.1103/physrevlett.130.026101] [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: 07/20/2022] [Accepted: 12/09/2022] [Indexed: 06/18/2023]
Abstract
For the classification of topological phases of matter, an important consideration is whether a system is spinless or spinful, as these two classes have distinct symmetry algebra that gives rise to fundamentally different topological phases. However, only recently has it been realized theoretically that in the presence of gauge symmetry, the algebraic structure of symmetries can be projectively represented, which possibly enables the switch between spinless and spinful topological phases. Here, we report the experimental demonstration of this idea by realizing spinful topological phases in "spinless" acoustic crystals with projective space-time inversion symmetry. In particular, we realize a one-dimensional topologically gapped phase characterized by a 2Z winding number, which features double-degenerate bands in the entire Brillouin zone and two pairs of degenerate topological boundary modes. Our Letter thus overcomes a fundamental constraint on topological phases by spin classes.
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Affiliation(s)
- Yan Meng
- Department of Electrical and Electronic Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Shuxin Lin
- Department of Electrical and Electronic Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Bin-Jie Shi
- Research Center of Fluid Machinery Engineering and Technology, School of Physics and Electronics Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Bin Wei
- SKLSM, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China
- Center for Excellence in Topological Quantum Computation, University of Chinese Academy of Sciences, Beijing 100190, China
| | - Linyun Yang
- Department of Electrical and Electronic Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Bei Yan
- Department of Electrical and Electronic Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Zhenxiao Zhu
- Department of Electrical and Electronic Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Xiang Xi
- Department of Electrical and Electronic Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Yin Wang
- Research Center of Fluid Machinery Engineering and Technology, School of Physics and Electronics Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Yong Ge
- Research Center of Fluid Machinery Engineering and Technology, School of Physics and Electronics Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Shou-Qi Yuan
- Research Center of Fluid Machinery Engineering and Technology, School of Physics and Electronics Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Jingming Chen
- Department of Electrical and Electronic Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Gui-Geng Liu
- Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore 637371, Singapore
| | - Hong-Xiang Sun
- Research Center of Fluid Machinery Engineering and Technology, School of Physics and Electronics Engineering, Jiangsu University, Zhenjiang 212013, China
- State Key Laboratory of Acoustics, Institute of Acoustics, Chinese Academy of Sciences, Beijing 100190, China
| | - Hongsheng Chen
- Interdisciplinary Center for Quantum Information, State Key Laboratory of Extreme Photonics and Instrumentation, ZJU-Hangzhou Global Scientific and Technological Innovation Center, Zhejiang University, Hangzhou 310027, China; International Joint Innovation Center, The Electromagnetics Academy at Zhejiang University, Zhejiang University, Haining 314400, China; Key Lab. of Advanced Micro/Nano Electronic Devices & Smart Systems of Zhejiang, Jinhua Institute of Zhejiang University, Zhejiang University, Jinhua 321099, China; Shaoxing Institute of Zhejiang University, Zhejiang University, Shaoxing 312000, China
| | - Yihao Yang
- Interdisciplinary Center for Quantum Information, State Key Laboratory of Extreme Photonics and Instrumentation, ZJU-Hangzhou Global Scientific and Technological Innovation Center, Zhejiang University, Hangzhou 310027, China; International Joint Innovation Center, The Electromagnetics Academy at Zhejiang University, Zhejiang University, Haining 314400, China; Key Lab. of Advanced Micro/Nano Electronic Devices & Smart Systems of Zhejiang, Jinhua Institute of Zhejiang University, Zhejiang University, Jinhua 321099, China; Shaoxing Institute of Zhejiang University, Zhejiang University, Shaoxing 312000, China
| | - Zhen Gao
- Department of Electrical and Electronic Engineering, Southern University of Science and Technology, Shenzhen 518055, China
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Xu Q, Peng Y, Yan B, Shi A, Peng P, Xie J, Liu J. Multiband topological states in the Penrose-triangle photonic crystals. Opt Lett 2023; 48:101-104. [PMID: 36563382 DOI: 10.1364/ol.477077] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Accepted: 11/16/2022] [Indexed: 06/17/2023]
Abstract
The topological edge state (TES) and topological corner state (TCS) in photonic crystals (PCs) provide effective ways to manipulate the propagation of light. To improve the performance and integration of topological photonic devices, the realization of multiband topological states by PCs combined with quasi-periodic structure needs to be urgently explored. In this Letter, a Penrose-triangle (P-T) PC, which arranges the basic structural unit of a 12-fold Penrose-type photonic quasi-crystal (PQC) in a triangular lattice, is proposed. The TES and TCS at low- and high-frequency bands can be generated in the same structure, accompanied by the realization of three groups of TCSs. This will provide a new structure for the generation of TESs and TCSs in PCs, and will provide a new way to improve the performance and integration of topological photonic devices.
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Liao Y, Hu H, Tang X, Qin Y, Zhang W, Dong K, Yan B, Mu Y, Li L, Ming Z, Xiao X. A versatile and convenient tool for regulation of DNA strand displacement and post-modification on pre-fabricated DNA nanodevices. Nucleic Acids Res 2022; 51:29-40. [PMID: 36537218 PMCID: PMC9841412 DOI: 10.1093/nar/gkac1193] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Revised: 11/18/2022] [Accepted: 12/01/2022] [Indexed: 12/24/2022] Open
Abstract
Toehold-mediated strand displacement and its regulatory tools are fundamental for DNA nanotechnology. However, current regulatory tools all need to change the original sequence of reactants, making the regulation inconvenient and cumbersome. More importantly, the booming development of DNA nanotechnology will soon promote the production of packaged and batched devices or circuits with specified functions. Regarding standardized, packaged DNA nanodevices, access to personalized post-modification will greatly help users, whereas none of the current regulatory tools can provide such access, which has greatly constrained DNA nanodevices from becoming more powerful and practical. Herein, we developed a novel regulation tool named Cap which has two basic functions of subtle regulation of the reaction rate and erasability. Based on these functions, we further developed three advanced functions. Through integration of all functions of Cap and its distinct advantage of working independently, we finally realized personalized tailor-made post-modification on pre-fabricated DNA circuits. A pre-fabricated dual-output DNA circuit was successfully transformed into an equal-output circuit, a signal-antagonist circuit and a covariant circuit according to our requirements. Taken together, Cap is easy to design and generalizable for all strand displacement-based DNA nanodevices. We believe the Cap tool will be widely used in regulating reaction networks and personalized tailor-made post-modification of DNA nanodevices.
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Affiliation(s)
| | | | | | - Yang Qin
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Wei Zhang
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Kejun Dong
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Bei Yan
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Yaoqin Mu
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Longjie Li
- Correspondence may also be addressed to Longjie Li.
| | - Zhihao Ming
- Correspondence may also be addressed to Zhihao Ming.
| | - Xianjin Xiao
- To whom correspondence should be addressed. Tel: +86 027 8369 2651; Fax: +86 027 8369 2651;
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29
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Li Y, Yang R, Häggblom MM, Li M, Guo L, Li B, Kolton M, Cao Z, Soleimani M, Chen Z, Xu Z, Gao W, Yan B, Sun W. Correction: Characterization of diazotrophic root endophytes in Chinese silvergrass (Miscanthus sinensis). Microbiome 2022; 10:232. [PMID: 36527128 PMCID: PMC9756636 DOI: 10.1186/s40168-022-01445-2] [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] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Affiliation(s)
- Yongbin Li
- Guangdong Key Laboratory of Integrated Agro-Environmental Pollution Control and Management, Institute of Eco-Environmental and Soil Sciences, National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangdong Academy of Sciences, Guangzhou, 510650, China
- Joint Laboratory for Environmental Pollution and Control, Guangdong-Hong Kong-Macao, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, 510640, China
| | - Rui Yang
- Guangdong Key Laboratory of Integrated Agro-Environmental Pollution Control and Management, Institute of Eco-Environmental and Soil Sciences, National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangdong Academy of Sciences, Guangzhou, 510650, China
| | - Max M Häggblom
- Department of Biochemistry and Microbiology, Rutgers University, New Brunswick, NJ, 08901, USA
| | - Mengyan Li
- Department of Chemistry and Environmental Science, New Jersey Institute of Technology, Newark, NJ, 07102, USA
| | - Lifang Guo
- Guangdong Key Laboratory of Integrated Agro-Environmental Pollution Control and Management, Institute of Eco-Environmental and Soil Sciences, National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangdong Academy of Sciences, Guangzhou, 510650, China
| | - Baoqin Li
- Guangdong Key Laboratory of Integrated Agro-Environmental Pollution Control and Management, Institute of Eco-Environmental and Soil Sciences, National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangdong Academy of Sciences, Guangzhou, 510650, China
| | - Max Kolton
- Guangdong Key Laboratory of Integrated Agro-Environmental Pollution Control and Management, Institute of Eco-Environmental and Soil Sciences, National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangdong Academy of Sciences, Guangzhou, 510650, China
- Joint Laboratory for Environmental Pollution and Control, Guangdong-Hong Kong-Macao, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, 510640, China
- French Associates Institute for Agriculture and Biotechnology of Drylands, Ben-Gurion University, of the Negev, Beer Sheva, Israel
| | - Zhiguo Cao
- School of Environment, Key Laboratory of Yellow River and Huai River Water Environment and Pollution Control, Ministry of Education, Henan Normal University, Xinxiang, 453007, China
| | - Mohsen Soleimani
- Department of Natural Resources, Isfahan University of Technology, Isfahan, Iran
| | - Zheng Chen
- Department of Health and Environmental Sciences, Xi'an Jiaotong-Liverpool University, Suzhou, 215123, China
| | - Zhimin Xu
- Engineering and Technology Research Center for Agricultural Land Pollution Prevention and Control of Guangdong Higher Education Institutes, College of Resources and Environment, Zhongkai University of Agriculture and Engineering, Guangzhou, 510225, China
| | - Wenlong Gao
- Guangdong Key Laboratory of Integrated Agro-Environmental Pollution Control and Management, Institute of Eco-Environmental and Soil Sciences, National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangdong Academy of Sciences, Guangzhou, 510650, China
- Joint Laboratory for Environmental Pollution and Control, Guangdong-Hong Kong-Macao, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, 510640, China
| | - Bei Yan
- Guangdong Key Laboratory of Integrated Agro-Environmental Pollution Control and Management, Institute of Eco-Environmental and Soil Sciences, National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangdong Academy of Sciences, Guangzhou, 510650, China
- Joint Laboratory for Environmental Pollution and Control, Guangdong-Hong Kong-Macao, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, 510640, China
| | - Weimin Sun
- Guangdong Key Laboratory of Integrated Agro-Environmental Pollution Control and Management, Institute of Eco-Environmental and Soil Sciences, National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangdong Academy of Sciences, Guangzhou, 510650, China.
- Joint Laboratory for Environmental Pollution and Control, Guangdong-Hong Kong-Macao, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, 510640, China.
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30
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Zhang W, Mu Y, Dong K, Zhang L, Yan B, Hu H, Liao Y, Zhao R, Shu W, Ye Z, Lu Y, Wan C, Sun Q, Li L, Wang H, Xiao X. PAM-independent ultra-specific activation of CRISPR-Cas12a via sticky-end dsDNA. Nucleic Acids Res 2022; 50:12674-12688. [PMID: 36484104 PMCID: PMC9825152 DOI: 10.1093/nar/gkac1144] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [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: 09/25/2022] [Revised: 11/04/2022] [Accepted: 11/18/2022] [Indexed: 12/13/2022] Open
Abstract
Although CRISPR-Cas12a [clustered regularly interspaced short palindromic repeats (CRISPR)-CRISPR-associated protein 12a] combining pre-amplification technology has the advantage of high sensitivity in biosensing, its generality and specificity are insufficient, which greatly restrains its application range. Here, we discovered a new targeting substrate for LbaCas12a (Lachnospiraceae bacterium Cas12a), namely double-stranded DNA (dsDNA) with a sticky-end region (PAM-SE+ dsDNA). We discovered that CRISPR-Cas12a had special enzymatic properties for this substrate DNA, including the ability to recognize and cleave it without needing a protospacer adjacent motif (PAM) sequence and a high sensitivity to single-base mismatches in that substrate. Further mechanism studies revealed that guide RNA (gRNA) formed a triple-stranded flap structure with the substrate dsDNA. We also discovered the property of low-temperature activation of CRISPR-Cas12a and, by coupling with the unique DNA hybridization kinetics at low temperature, we constructed a complete workflow for low-abundance point mutation detection in real samples, which was fast, convenient and free of single-stranded DNA (ssDNA) transformation. The detection limits were 0.005-0.01% for synthesized strands and 0.01-0.05% for plasmid genomic DNA, and the mutation abundances provided by our system for 28 clinical samples were in accordance with next-generation sequencing results. We believe that our work not only reveals novel information about the target recognition mechanism of the CRISPR-Cas12a system, but also greatly broadens its application scenarios.
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Affiliation(s)
| | | | - Kejun Dong
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430000, China
| | - Lei Zhang
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Bei Yan
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Hao Hu
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Yangwei Liao
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Rong Zhao
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430000, China
| | - Wan Shu
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430000, China
| | - Zhengxin Ye
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Yaping Lu
- Sinopharm Genomics Technology Co., Ltd, Wuhan 430000, China
| | - Chong Wan
- Precision Medicine Center, Yangtze Delta Region Institute of Tsinghua University, Jiaxing 314006, China
| | - Qiangqiang Sun
- Life Health Care Clinical Laboratories, Beijing 100000, China
| | - Longjie Li
- Correspondence may also be addressed to Longjie Li.
| | - Hongbo Wang
- Correspondence may also be addressed to Hongbo Wang.
| | - Xianjin Xiao
- To whom correspondence should be addressed. Tel: +86 027 8369 2651; Fax: +86 027 8369 2651;
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31
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Zhao NJ, Yan B, Piao CL, Lu Y, Yang SY. [Application of traditional Chinese medicine on prevention and treatment of diabetes:interpretation of the traditional Chinese medicine section of national guidelines for the prevention and control of diabetes in primary care (2022)]. Zhonghua Nei Ke Za Zhi 2022; 61:1297-1299. [PMID: 36456508 DOI: 10.3760/cma.j.cn112138-20220224-00141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Affiliation(s)
- N J Zhao
- Department of Traditional Chinese Medicine Studio, the First Affiliate Hospital of Xiamen University, Xiamen 361003, China
| | - B Yan
- Department of Traditional Chinese Medicine Studio, the First Affiliate Hospital of Xiamen University, Xiamen 361003, China
| | - C L Piao
- Department of Endocrinology, Shenzhen Hospital, Guangzhou University of Chinese Medicine (Futian), Shenzhen 510006, China
| | - Y Lu
- Department of Endocrinology, Linxia Hospital of Traditional Chinese Medicine, Linxia 731199, China
| | - S Y Yang
- Department of Traditional Chinese Medicine Studio, the First Affiliate Hospital of Xiamen University, Xiamen 361003, China
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32
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Li Y, Yang R, Häggblom MM, Li M, Guo L, Li B, Kolton M, Cao Z, Soleimani M, Chen Z, Xu Z, Gao W, Yan B, Sun W. Characterization of diazotrophic root endophytes in Chinese silvergrass (Miscanthus sinensis). Microbiome 2022; 10:186. [PMID: 36329505 PMCID: PMC9632085 DOI: 10.1186/s40168-022-01379-9] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Accepted: 09/22/2022] [Indexed: 05/23/2023]
Abstract
BACKGROUND Phytoremediation is a potentially cost-effective way to remediate highly contaminated mine tailing sites. However, nutrient limitations, especially the deficiency of nitrogen (N), can hinder the growth of plants and impair the phytoremediation of mine tailings. Nevertheless, pioneer plants can successfully colonize mine tailings and exhibit potential for tailing phytoremediation. Diazotrophs, especially diazotrophic endophytes, can promote the growth of their host plants. This was tested in a mine-tailing habitat by a combination of field sampling, DNA-stable isotope probing (SIP) analysis, and pot experiments. RESULTS Bacteria belonging to the genera Herbaspirillum, Rhizobium, Devosia, Pseudomonas, Microbacterium, and Delftia are crucial endophytes for Chinese silvergrass (Miscanthus sinensis) grown in the tailing, the model pioneer plant selected in this study. Further, DNA-SIP using 15N2 identified Pseudomonas, Rhizobium, and Exiguobacterium as putative diazotrophic endophytes of M. sinensis. Metagenomic-binning suggested that these bacteria contained essential genes for nitrogen fixation and plant growth promotion. Finally, two diazotrophic endophytes Rhizobium sp. G-14 and Pseudomonas sp. Y-5 were isolated from M. sinensis. Inoculation of another pioneer plant in mine tailings, Bidens pilosa, with diazotrophic endophytes resulted in successful plant colonization, significantly increased nitrogen fixation activity, and promotion of plant growth. CONCLUSIONS This study indicated that diazotrophic endophytes have the potential to promote the growth of pioneer plant B. pilosa in mine tailings. Video Abstract.
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Affiliation(s)
- Yongbin Li
- Guangdong Key Laboratory of Integrated Agro-Environmental Pollution Control and Management, Institute of Eco-Environmental and Soil Sciences, National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangdong Academy of Sciences, Guangzhou, 510650, China
- Joint Laboratory for Environmental Pollution and Control, Guangdong-Hong Kong-Macao, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, 510640, China
| | - Rui Yang
- Guangdong Key Laboratory of Integrated Agro-Environmental Pollution Control and Management, Institute of Eco-Environmental and Soil Sciences, National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangdong Academy of Sciences, Guangzhou, 510650, China
| | - Max M Häggblom
- Department of Biochemistry and Microbiology, Rutgers University, New Brunswick, NJ, 08901, USA
| | - Mengyan Li
- Department of Chemistry and Environmental Science, New Jersey Institute of Technology, Newark, NJ, 07102, USA
| | - Lifang Guo
- Guangdong Key Laboratory of Integrated Agro-Environmental Pollution Control and Management, Institute of Eco-Environmental and Soil Sciences, National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangdong Academy of Sciences, Guangzhou, 510650, China
| | - Baoqin Li
- Guangdong Key Laboratory of Integrated Agro-Environmental Pollution Control and Management, Institute of Eco-Environmental and Soil Sciences, National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangdong Academy of Sciences, Guangzhou, 510650, China
| | - Max Kolton
- Guangdong Key Laboratory of Integrated Agro-Environmental Pollution Control and Management, Institute of Eco-Environmental and Soil Sciences, National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangdong Academy of Sciences, Guangzhou, 510650, China
- Joint Laboratory for Environmental Pollution and Control, Guangdong-Hong Kong-Macao, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, 510640, China
- French Associates Institute for Agriculture and Biotechnology of Drylands, Ben-Gurion University of the Negev, Beer Sheva, Israel
| | - Zhiguo Cao
- School of Environment, Key Laboratory of Yellow River and Huai River Water Environment and Pollution Control, Ministry of Education, Henan Normal University, Xinxiang, 453007, China
| | - Mohsen Soleimani
- Department of Natural Resources, Isfahan University of Technology, Isfahan, Iran
| | - Zheng Chen
- Department of Health and Environmental Sciences, Xi'an Jiaotong-Liverpool University, Suzhou, 215123, China
| | - Zhimin Xu
- Engineering and Technology Research Center for Agricultural Land Pollution Prevention and Control of Guangdong Higher Education Institutes, College of Resources and Environment, Zhongkai University of Agriculture and Engineering, Guangzhou, 510225, China
| | - Wenlong Gao
- Guangdong Key Laboratory of Integrated Agro-Environmental Pollution Control and Management, Institute of Eco-Environmental and Soil Sciences, National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangdong Academy of Sciences, Guangzhou, 510650, China
- Joint Laboratory for Environmental Pollution and Control, Guangdong-Hong Kong-Macao, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, 510640, China
| | - Bei Yan
- Guangdong Key Laboratory of Integrated Agro-Environmental Pollution Control and Management, Institute of Eco-Environmental and Soil Sciences, National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangdong Academy of Sciences, Guangzhou, 510650, China
- Joint Laboratory for Environmental Pollution and Control, Guangdong-Hong Kong-Macao, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, 510640, China
| | - Weimin Sun
- Guangdong Key Laboratory of Integrated Agro-Environmental Pollution Control and Management, Institute of Eco-Environmental and Soil Sciences, National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangdong Academy of Sciences, Guangzhou, 510650, China.
- Joint Laboratory for Environmental Pollution and Control, Guangdong-Hong Kong-Macao, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, 510640, China.
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Yan G, Sun X, Dong Y, Gao W, Gao P, Li B, Yan W, Zhang H, Soleimani M, Yan B, Häggblom MM, Sun W. Vanadate reducing bacteria and archaea may use different mechanisms to reduce vanadate in vanadium contaminated riverine ecosystems as revealed by the combination of DNA-SIP and metagenomic-binning. Water Res 2022; 226:119247. [PMID: 36270146 DOI: 10.1016/j.watres.2022.119247] [Citation(s) in RCA: 4] [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: 06/12/2022] [Revised: 10/09/2022] [Accepted: 10/12/2022] [Indexed: 06/16/2023]
Abstract
Vanadium (V) is a transitional metal that poses health risks to exposed humans. Microorganisms play an important role in remediating V contamination by reducing more toxic and mobile vanadate (V(V)) to less toxic and mobile V(IV). In this study, DNA-stable isotope probing (SIP) coupled with metagenomic-binning was used to identify microorganisms responsible for V(V) reduction and determine potential metabolic mechanisms in cultures inoculated with a V-contaminated river sediment. Anaeromyxobacter and Geobacter spp. were identified as putative V(V)-reducing bacteria, while Methanosarcina spp. were identified as putative V(V)-reducing archaea. The bacteria may use the two nitrate reductases NarG and NapA for respiratory V(V) reduction, as has been demonstrated previously for other species. It is proposed that Methanosarcina spp. may reduce V(V) via anaerobic methane oxidation pathways (AOM-V) rather than via respiratory V(V) reduction performed by their bacterial counterparts, as indicated by the presence of genes associated with anaerobic methane oxidation coupled with metal reduction in the metagenome assembled genome (MAG) of Methanosarcina. Briefly, methane may be oxidized through the "reverse methanogenesis" pathway to produce electrons, which may be further captured by V(V) to promote V(V) reduction. More specially, V(V) reduction by members of Methanosarcina may be driven by electron transport (CoMS-SCoB heterodisulfide reductase (HdrDE), F420H2 dehydrogenases (Fpo), and multi-heme c-type cytochrome (MHC)). The identification of putative V(V)-reducing bacteria and archaea and the prediction of their different pathways for V(V) reduction expand current knowledge regarding the potential fate of V(V) in contaminated sites.
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Affiliation(s)
- Geng Yan
- National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management, Institute of Eco-environmental and Soil Sciences, Guangdong Academy of Sciences, Guangzhou 510650, China; Guangdong-Hong Kong-Macao Joint Laboratory for Environmental Pollution and Control, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China
| | - Xiaoxu Sun
- National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management, Institute of Eco-environmental and Soil Sciences, Guangdong Academy of Sciences, Guangzhou 510650, China; Guangdong-Hong Kong-Macao Joint Laboratory for Environmental Pollution and Control, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China
| | - Yiran Dong
- School of Environmental Studies, China University of Geosciences (Wuhan), Wuhan 430074, China
| | - Wenlong Gao
- National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management, Institute of Eco-environmental and Soil Sciences, Guangdong Academy of Sciences, Guangzhou 510650, China; Guangdong-Hong Kong-Macao Joint Laboratory for Environmental Pollution and Control, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China
| | - Pin Gao
- National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management, Institute of Eco-environmental and Soil Sciences, Guangdong Academy of Sciences, Guangzhou 510650, China; College of Environmental Science and Engineering, Donghua University, Shanghai 201620, China
| | - Baoqin Li
- National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management, Institute of Eco-environmental and Soil Sciences, Guangdong Academy of Sciences, Guangzhou 510650, China; Guangdong-Hong Kong-Macao Joint Laboratory for Environmental Pollution and Control, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China
| | - Wangwang Yan
- State Key Laboratory of Biocontrol, School of Ecology, Sun Yat-Sen University, Shenzhen, Guangdong, 518107, China
| | - Haihan Zhang
- Shaanxi Key Laboratory of Environmental Engineering, School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - Mohsen Soleimani
- Department of Natural Resources, Isfahan University of Technology, 8415683111, Isfahan, Iran
| | - Bei Yan
- National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management, Institute of Eco-environmental and Soil Sciences, Guangdong Academy of Sciences, Guangzhou 510650, China; Guangdong-Hong Kong-Macao Joint Laboratory for Environmental Pollution and Control, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China
| | - Max M Häggblom
- Department of Biochemistry and Microbiology, Rutgers University, New Brunswick, NJ 08901, United States
| | - Weimin Sun
- National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management, Institute of Eco-environmental and Soil Sciences, Guangdong Academy of Sciences, Guangzhou 510650, China; Guangdong-Hong Kong-Macao Joint Laboratory for Environmental Pollution and Control, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China.
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Sun W, Yan B. Impact of sodium-glucose co-transporter 2 inhibitors on cardiovascular outcomes in patients with chronic kidney disease: Hong Kong-wide, observational, propensity score matched analysis. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.2615] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Purpose
The impact of SGLT2i on patients with advanced chronic kidney disease (CKD) is limited. We aimed to compare hospitalization for heart failure (HHF) and cardiovascular (CV) death between new users of SGLT2i versus non-users across the spectrum of CKD stages.
Methods
We retrospectively analyzed 22,657 patients with CKD who were prescribed SGLT2i between August 2015 and August 2020 in 16 public hospitals in Hong Kong. Propensity-matched cohorts of SGLT2i users and non-users (n=3,704 per group) were generated on the basis of age, gender, baseline eGFR, co-morbidities and medications. Time to HHF and CV death was analyzed using COX proportional hazards model. Subgroup analysis was performed to detect heterogeneity of effect across stages of CKD.
Results
Of the whole cohort (N=22,657), the percentage of SGLT2i users in CKD stage G1 to G5 were 82.1%, 49.0%, 19.8%, 10.3%, 4.3%, and 1.6%, respectively. SGLT2i users and non-users groups were well balanced at baseline (mean age 64.7±12.7, female 37.1%), with a median follow-up of 2.8 (IQR: 1.1–5.1) years (22876.5 person-years). Overall, SGLT2i was associated with reduced risk of HHF (Hazards Ratio (HR) 0.12 (95% CI (0.10–0.16) and CV death (HR 0.17 (95% CI (0.12–0.25), compared with non-users. Subgroup analysis demonstrated benefit of SGLT2i on CV death in G3 to G5 groups but not in patients in earlier CKD stages (P for interaction <0.001) (Table). Reduction in risk of HHF was comparable across all CKD stages (P for interaction = 0.1).
Conclusion
Utilization of SGLT2i was associated with significant reduction in HHF and CV death in patients with moderate to severe CKD in a real-world setting. Our results suggest significant heterogeneity in CV death reduction with the largest benefit in patients with stage G3a and more advanced CKD.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- W Sun
- The Chinese University of Hong Kong , Hong Kong , Hong Kong
| | - B Yan
- The Chinese University of Hong Kong , Hong Kong , Hong Kong
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Sun W, Yan B. Timing of initiation of sodium-glucose co-transporter 2 inhibitor in patients with diabetes and chronic cardiac failure. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.961] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Purpose
Sodium-glucose cotransporter 2 (SGLT2) inhibitors reduce the risk of first hospitalization for heart failure (HHF) in patients with type 2 diabetes. We aimed to evaluate the impact of early initiation of SGLT2 inhibitors on recurrent HHF in diabetic patients with chronic cardiac failure.
Methods
We retrospectively analyzed 1,363 consecutive diabetic patients with chronic cardiac failure with index HHF between August 2015 and August 2020 in 16 public hospitals in Hong Kong who were prescribed SGLT2i (empagliflozin=1,009, 74% and dapagliflozin =354, 26%).Patients who initiated SGLT2i at discharge of index HHF were compared to those who were not. Risk of recurrent HHF was compared, using adjusted sub-distribution hazard ratios (aSHR) derived from Fine and Gray regression models, accounting for death as competing risk, adjusting for age, gender, concurrent medications. Comparisons were also conducted between initiation of SGLT2i ≤30 vs >30 days; and ≤90 vs. >90 days after discharge.
Results
Of 1,363 patients (mean age 63.9±11.6, female 34.6%), 85% had no history of previous HHF at enrollment, 11.9% had up to 2 and 3.1% and 3.1% ≥3 HHF in the past 5 years. SGLT2i was initiated in 37.4% of patients at discharge of index HHF and the median time from index HHF to SGLT2i initiation for the other patients was 4.2 (IQR: 0–20.4) months. During a median follow-up of 1.3 (IQR: 0.2–2.7) years, initiation of SGLT2i at discharge was associated with lower risk of recurrent HHF (aSHR = 0.79, 95% CI: 0.68–0.92). Similar effect was observed between SGLT2i initiation ≤30 vs. >30 days (aSHR = 0.82, 95% CI: 0.70–0.95) but not between ≤90 vs. >90 days (P=0.19).
Conclusion
Among patients with diabetes and chronic cardiac failure, the risk of recurrent HHF was reduced when SGLT2 was initiated early after index HHF.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- W Sun
- The Chinese University of Hong Kong , Hong Kong , Hong Kong
| | - B Yan
- The Chinese University of Hong Kong , Hong Kong , Hong Kong
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Sun H, Lai A, Yan B. Low-density lipoprotein cholesterol target attainment among statin-naive Chinese atherosclerotic vascular disease patients. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.2668] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Low-density lipoprotein cholesterol (LDL-C) of patients with atherosclerotic vascular disease (ASCVD) is expected to be lowered by ≥50% and <1.4 mmol/L. Despite the use of lipid-lowering therapies, most of Chinese patients failed to meet the treatment target.
Purpose
We aimed to evaluate the potential of different statin intensities on LDL-C target attainment among statin-naïve Chinese ASCVD patients.
Methods
We retrospectively analyzed statin-naïve ASCVD patients who were initiated with statin therapy between January and July 2020 from 43 public hospitals or clinics in Hong Kong. Patients were divided into high-intensity (HI-S, atorvastatin 40–80 mg, rosuvastatin 20–40 mg), moderate-intensity (MI-S, atorvastatin 10–20 mg, rosuvastatin 5–10 mg, simvastatin 20–40 mg) and low-intensity (LI-S, simvastatin 10 mg) statin groups. With baseline and follow-up LDL-C, percentage reduction was calculated and the distance to LDL-C target was investigated within groups.
Results
Of 7,241 patients (mean age 61.8±12.4 years and 64.2% male), 4,451 (61.5%) had coronary artery disease, 109 (1.5%) peripheral artery disease, and 2,879 (39.8%) cerebrovascular disease. HI-S, MI-S and LI-S were prescribed in 20% (n=1,450), 61.1% (n=4,421) and 18.9% (n=1,370) patients, respectively. Mean baseline LDL-C was 2.9±1.0 mmol/L and mean follow-up value was 1.9±0.8 mmol/L with median LDL-C reduction of 46.1%, 40.4%, and 32.0% by HI-S, MI-S, and LI-S, respectively. 42.1%, 31.8%, and 14.7% of patients on HI-S, MI-S, and LI-S achieved ≥50% LDL-C reduction and only 23.5%, 18.2%, and 8.8% reached both ≥50% LDL-C reduction and <1.4 mmol/L. One in ten patients require further ≥50% LDL-C reduction to reach <1.4 mmol/L.
Conclusion
In statin-naïve Chinese ASCVD patients, most patients did not reach guidelines recommended LDL-C target even with high-intensity statin. Early statin up-titration or addition of non-statin lipid-lowering therapy may be required in majority of patients.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- H Sun
- The Chinese University of Hong Kong , Hong Kong , Hong Kong
| | - A Lai
- The Chinese University of Hong Kong , Hong Kong , Hong Kong
| | - B Yan
- The Chinese University of Hong Kong , Hong Kong , Hong Kong
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Yan B, Hollingshead AB. Motivating the Motivationally Diverse Crowd: Social Value Orientation and Reward Structure in Crowd Idea Generation. J MANAGE INFORM SYST 2022. [DOI: 10.1080/07421222.2022.2127451] [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: 12/14/2022]
Affiliation(s)
- Bei Yan
- Stevens Institute of Technology, Hoboken, NJ, USA
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Shao X, Liu L, Li H, Luo Y, Zhao J, Liu S, Yan B, Wang D, Luo K, Liu M, Bai L, Li X, Liu K. The effects of polyethersulfone and Nylon 6 micromembrane filters on the pyraclostrobin detection: adsorption performance and mechanism. Environ Sci Pollut Res Int 2022; 29:74051-74061. [PMID: 35633450 DOI: 10.1007/s11356-022-21021-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Accepted: 05/18/2022] [Indexed: 06/15/2023]
Abstract
Adsorption of test substances on micromembrane filters during sample pretreatment before qualitative and quantitative analysis has greatly affected the accuracy of the measurement. In the present study, it was found that the adsorption rate of pyraclostrobin reached 77.7-100% when water samples of pyraclostrobin (1 mL) were filtered with polyethersulfone (PES) and Nylon 6 filters. Therefore, the adsorption mechanisms were investigated from the kinetics, isotherms, and thermodynamics of the pyraclostrobin adsorption process, combined with attenuated total reflection-Fourier transform infrared (ATR-FTIR) spectroscopy and X-ray photoelectron spectroscopy (XPS) analysis. The results showed that PES accorded with second-order adsorption kinetics and Nylon 6 with first-order adsorption kinetics, and the correlation coefficient R2 was 0.98. The adsorption behavior of the two micromembranes followed the linear isothermal model, indicating that the adsorption process was through monolayer adsorption. Thermodynamic study showed that the adsorption of pyracoethyl on PES membrane was spontaneous endothermic, while that on Nylon 6 was spontaneous exothermic. The π-π electron-donor-acceptor (EDA) between pyraclostrobin and PES may promote the adsorption of PES to pyraclostrobin, and hydrogen bonding between pyraclostrobin and Nylon 6 micromembrane may be involved in the adsorption. Our study also proved that the adding 60% methanol and iodine solution (2 mmol/L) was an effective strategy to reduce the adsorption effects and to increase the accuracy of the detection.
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Affiliation(s)
- Xiaolan Shao
- College of Plant Protection, Hunan Agricultural University, Changsha, 410128, People's Republic of China
- Hunan Weed Science Key Laboratory, Hunan Academy of Agricultural Sciences, 410125, Changsha, People's Republic of China
| | - Lejun Liu
- College of Plant Protection, Hunan Agricultural University, Changsha, 410128, People's Republic of China
| | - Hui Li
- Department of Crop and Soil Sciences, North Carolina State University, Raleigh, NC, 27695, USA
| | - Yue Luo
- College of Plant Protection, Hunan Agricultural University, Changsha, 410128, People's Republic of China
| | - Jingyu Zhao
- College of Plant Protection, Hunan Agricultural University, Changsha, 410128, People's Republic of China
| | - Shuai Liu
- College of Plant Protection, Hunan Agricultural University, Changsha, 410128, People's Republic of China
| | - Bei Yan
- College of Plant Protection, Hunan Agricultural University, Changsha, 410128, People's Republic of China
| | - Dan Wang
- College of Plant Protection, Hunan Agricultural University, Changsha, 410128, People's Republic of China
| | - Kun Luo
- College of Plant Protection, Hunan Agricultural University, Changsha, 410128, People's Republic of China
| | - Min Liu
- College of Plant Protection, Hunan Agricultural University, Changsha, 410128, People's Republic of China
| | - Lianyang Bai
- College of Plant Protection, Hunan Agricultural University, Changsha, 410128, People's Republic of China
- Hunan Weed Science Key Laboratory, Hunan Academy of Agricultural Sciences, 410125, Changsha, People's Republic of China
| | - Xiaoyun Li
- Department of Evironmental Science, School of Geography and Tourism, Shaanxi Normal University, Xi'an, 710119, People's Republic of China
| | - Kailin Liu
- College of Plant Protection, Hunan Agricultural University, Changsha, 410128, People's Republic of China.
- Hunan Weed Science Key Laboratory, Hunan Academy of Agricultural Sciences, 410125, Changsha, People's Republic of China.
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Yang L, Wang Y, Meng Y, Zhu Z, Xi X, Yan B, Lin S, Chen J, Shi BJ, Ge Y, Yuan SQ, Chen H, Sun HX, Liu GG, Yang Y, Gao Z. Observation of Dirac Hierarchy in Three-Dimensional Acoustic Topological Insulators. Phys Rev Lett 2022; 129:125502. [PMID: 36179186 DOI: 10.1103/physrevlett.129.125502] [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: 04/19/2022] [Accepted: 08/24/2022] [Indexed: 06/16/2023]
Abstract
Dirac cones (DCs) play a pivotal role in various unique phenomena ranging from massless electrons in graphene to robust surface states in topological insulators (TIs). Recent studies have theoretically revealed a full Dirac hierarchy comprising an eightfold bulk DC, a fourfold surface DC, and a twofold hinge DC, associated with a hierarchy of topological phases including first-order to third-order three-dimensional (3D) topological insulators, using the same 3D base lattice. Here, we report the first experimental observation of the Dirac hierarchy in 3D acoustic TIs. Using acoustic measurements, we unambiguously reveal that lifting of multifold DCs in each hierarchy can induce two-dimensional topological surface states with a fourfold DC in a first-order 3D TI, one-dimensional topological hinge states with a twofold DC in a second-order 3D TI, and zero-dimensional topological corner states in a third-order 3D TI. Our Letter not only expands the fundamental research scope of Dirac physics, but also opens up a new route for multidimensional robust wave manipulation.
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Affiliation(s)
- Linyun Yang
- Department of Electrical and Electronic Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Yin Wang
- Research Center of Fluid Machinery Engineering and Technology, School of Physics and Electronics Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Yan Meng
- Department of Electrical and Electronic Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Zhenxiao Zhu
- Department of Electrical and Electronic Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Xiang Xi
- Department of Electrical and Electronic Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Bei Yan
- Department of Electrical and Electronic Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Shuxin Lin
- Department of Electrical and Electronic Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Jingming Chen
- Department of Electrical and Electronic Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Bin-Jie Shi
- Research Center of Fluid Machinery Engineering and Technology, School of Physics and Electronics Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Yong Ge
- Research Center of Fluid Machinery Engineering and Technology, School of Physics and Electronics Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Shou-Qi Yuan
- Research Center of Fluid Machinery Engineering and Technology, School of Physics and Electronics Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Hongsheng Chen
- Interdisciplinary Center for Quantum Information, State Key Laboratory of Modern Optical Instrumentation, College of Information Science and Electronic Engineering, Zhejiang University, Hangzhou 310027, China
- ZJU-Hangzhou Global Science and Technology Innovation Center, Key Laboratory of Advanced Micro/Nano Electronic Devices and Smart Systems of Zhejiang, ZJU-UIUC Institute, Zhejiang University, Hangzhou 310027, China
| | - Hong-Xiang Sun
- Research Center of Fluid Machinery Engineering and Technology, School of Physics and Electronics Engineering, Jiangsu University, Zhenjiang 212013, China
- State Key Laboratory of Acoustics, Institute of Acoustics, Chinese Academy of Sciences, Beijing 100190, China
| | - Gui-Geng Liu
- Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore 637371, Singapore
| | - Yihao Yang
- Interdisciplinary Center for Quantum Information, State Key Laboratory of Modern Optical Instrumentation, College of Information Science and Electronic Engineering, Zhejiang University, Hangzhou 310027, China
- ZJU-Hangzhou Global Science and Technology Innovation Center, Key Laboratory of Advanced Micro/Nano Electronic Devices and Smart Systems of Zhejiang, ZJU-UIUC Institute, Zhejiang University, Hangzhou 310027, China
| | - Zhen Gao
- Department of Electrical and Electronic Engineering, Southern University of Science and Technology, Shenzhen 518055, China
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Dong K, Zhang W, Hu H, Cheng S, Mu Y, Yan B, Shu W, Li L, Wang H, Xiao X. A sensitive and specific nano-vehicle based on self-amplified dual-input synthetic gene circuit for intracellular imaging and treatment. Biosens Bioelectron 2022; 218:114746. [DOI: 10.1016/j.bios.2022.114746] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Revised: 08/25/2022] [Accepted: 09/21/2022] [Indexed: 11/30/2022]
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Ren R, Yan B. Personal network protects, social media harms: Evidence from two surveys during the COVID-19 pandemic. Front Psychol 2022; 13:964994. [PMID: 36072053 PMCID: PMC9441876 DOI: 10.3389/fpsyg.2022.964994] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Accepted: 08/01/2022] [Indexed: 11/29/2022] Open
Abstract
Background The classic debate regarding the complex relationships between personal network, social media use, and mental well-being requires renewed examination in the novel context of pandemic-related social isolation. Data and method We present two surveys conducted at (i) the earlier months of the pandemic and (ii) the end of large scale social-lockdown measures in the U.S. to explore the social and behavioral antecedents of mental health states relating to social media use. Study 1 tracked the longitudinal changes of personal network, social media use, and anxiety level of a group of individuals (N = 147) over a three-month period during the pandemic. Study 2 replicated and extended the theoretical model to a race-representative U.S. adult sample (N = 258). Results Both studies consistently show that (1) more time on social media worsens anxiety. It also mediates the relationship between personal network size and anxiety. That is, a small personal network predicts more social media use, which is in turn related to increased anxiety. (2) Moreover, the effect of social media use on anxiety is mainly explained by news consumption on social media, rather than non-news related usage. (3) This link’s strength is moderated by one’s perception of COVID-19 impact, such that news consumption on social media increases anxiety more when the perceived impact is higher. Conclusion These results demonstrate communication technologies’ increasingly critical and multifaceted role in affecting mental health conditions.
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Affiliation(s)
- Ruqin Ren
- Institute of Cultural and Creative Industry, Shanghai Jiao Tong University, Shanghai, China
- *Correspondence: Ruqin Ren,
| | - Bei Yan
- School of Business, Stevens Institute of Technology, Hoboken, NJ, United States
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Tao Z, Zhu M, Ding J, Jiang D, Yan B. Comparative Analysis of Interaction Mode between MABA and Silver Nanoparticles in the Silver Colloidal Solution. Russ J Phys Chem B 2022. [DOI: 10.1134/s1990793122040339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Wang J, De Jonge L, Cenin DR, Li P, Tao S, Yang C, Yan B, Lansdorp-Vogelaar I. Cost-effectiveness analysis of colorectal cancer screening in Shanghai, China: a modelling study. Prev Med Rep 2022; 29:101891. [PMID: 35864929 PMCID: PMC9294625 DOI: 10.1016/j.pmedr.2022.101891] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2021] [Revised: 04/19/2022] [Accepted: 07/01/2022] [Indexed: 11/05/2022] Open
Abstract
The current Shanghai CRC screening program is cost-effective. Changing to a validated FIT would make the program more efficient. The results were sensitive to an increase in the cost of the validated FIT. The results were sensitive to more participation in screening and colonoscopy.
Background The current community-based colorectal cancer (CRC) screening program in Shanghai, launched in 2013, invited individuals aged 50–74 years to triennial screening with a qualitative faecal immunochemical test (FIT) and questionnaire-based risk assessment (RA). We aimed to evaluate the effectiveness and cost-effectiveness of the existing Shanghai screening program and compare it to using a validated two-sample quantitative FIT. Methods We simulated four strategies (no screening, Shanghai FIT, Shanghai FIT + RA and validated FIT) for the Shanghai screening program and evaluated CRC incidence, CRC mortality, the number of life years gained (LYG), the number of FITs, and colonoscopies required for each. An incremental cost-effectiveness analysis was performed to assess the cost- effectiveness of each strategy. Results All screening modalities reduced CRC incidence and CRC mortality, gained extra number of LYG compared to no screening. Screening using the Shanghai FIT and validated FIT reduced CRC incidence from 45 cases to 43 per 1,000 simulated individuals (4.4%). Incidence was reduced to 42 cases (6.7%) using the Shanghai FIT + RA. All screening strategies reduced CRC mortality by 10.0% (from 10 to 9 deaths) and resulted in 6 to 7 LYG. The validated FIT was the most cost-effective among the evaluated strategies (ICER ¥26,461 per LYG). Conclusions Our findings show that the current Shanghai screening program is (cost-) effective compared to no screening, but changing to a validated FIT would make the program more efficient.
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Zhang W, Shi R, Dong K, Hu H, Shu W, Mu Y, Yan B, Li L, Xiao X, Wang H. The Off-Target Effect of CRISPR-Cas12a System toward Insertions and Deletions between Target DNA and crRNA Sequences. Anal Chem 2022; 94:8596-8604. [PMID: 35670376 DOI: 10.1021/acs.analchem.1c05499] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The CRISPR-Cas12a system is a new type of genome editing tool with high efficiency and targeting. However, other sequences in the genome may also be cleaved nonspecifically, resulting in unavoidable off-target effects. Therefore, it is necessary to learn more about the mechanism of CRISPR-Cas12a to recognize target sequences to avoid its off-target effects. Here, we show that insertion (DNA bubble) or deletion (RNA bubble) of the target dsDNA sequence compared with the crRNA sequence, the CRISPR-Cas12a system can still recognize and cleave the target dsDNA sequence. We conclude that the tolerance of CRISPR-Cas12a to the bubbles is closely related to the location and size of the bubble and the GC base content of crRNA. In addition, we used the unique property of CRISPR-Cas12a to invent a new method to detect mutations and successfully detect the CD41-42(-CTTT) mutation. The detection limit of this method is 0.001%. Overall, our results strongly indicate that in addition to considering off-target effects caused by base mismatches, a comprehensive off-target analysis of the insertion and deletion of the target dsDNA sequence is required, and specific guidelines for effectively reducing potential off-target cleavage are proposed, to improve the safety manual of CRISPR-Cas12a biological application.
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Affiliation(s)
- Wei Zhang
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Rui Shi
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Kejun Dong
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Hao Hu
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Wan Shu
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Yaoqin Mu
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Bei Yan
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Longjie Li
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China.,School of Life Science and Technology, Wuhan Polytechnic University, Wuhan 430023, China
| | - Xianjin Xiao
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China.,Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China.,Department of Laboratory Medicine, Tongji hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430000, China.,Center of Reproductive Medicine, Changsha Hospital for Maternal and Child Health Care of Hunan Normal University, Changsha 410000, China
| | - Hongbo Wang
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
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Peng Y, Liu E, Yan B, Xie J, Shi A, Peng P, Li H, Liu J. Higher-order topological states in two-dimensional Stampfli-Triangle photonic crystals. Opt Lett 2022; 47:3011-3014. [PMID: 35709038 DOI: 10.1364/ol.457058] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Accepted: 05/23/2022] [Indexed: 06/15/2023]
Abstract
In this Letter, the higher-order topological state (HOTS) and its mechanism in two-dimensional Stampfli-Triangle (2D S-T) photonic crystals (PhCs) is explored. The topological corner states (TCSs) in 2D S-T PhCs are based on two physical mechanisms: one is caused by the photonic quantum spin Hall effect (PQSHE), and the other is caused by the topological interface state. While the former leads to the spin-direction locked effect which can change the distribution of the TCSs, the latter is conducive to the emergence of multiband TCSs in the same structure due to the characteristics of plentiful photonic bandgap (PBG) and broadband in 2D S-T PhCs. These findings allow new, to the best of our knowledge, insight into the HOTS, and are significant to the future design of photonic microcavities, high-quality factor lasers, and other related integrated multiband photonic devices.
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Ren L, Ming Z, Zhang W, Liao Y, Tang X, Yan B, Lv H, Xiao X. Shared-probe system: An accurate, low-cost and general enzyme-assisted DNA probe system for detection of genetic mutation. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2021.09.038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Ren HC, Sun JG, A JY, Gu SH, Shi J, Shao F, Ai H, Zhang JW, Peng Y, Yan B, Huang Q, Liu LS, Sai Y, Wang GJ, Yang CG. Mechanism-Based Pharmacokinetic Model for the Deglycosylation Kinetics of 20(S)-Ginsenosides Rh2. Front Pharmacol 2022; 13:804377. [PMID: 35694247 PMCID: PMC9175024 DOI: 10.3389/fphar.2022.804377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Accepted: 03/21/2022] [Indexed: 11/13/2022] Open
Abstract
Aim: The 20(S)-ginsenoside Rh2 (Rh2) is being developed as a new antitumor drug. However, to date, little is known about the kinetics of its deglycosylation metabolite (protopanoxadiol) (PPD) following Rh2 administration. The aim of this work was to 1) simultaneously characterise the pharmacokinetics of Rh2 and PPD following intravenous and oral Rh2 administration, 2) develop and validate a mechanism-based pharmacokinetic model to describe the deglycosylation kinetics and 3) predict the percentage of Rh2 entering the systemic circulation in PPD form. Methods: Plasma samples were collected from rats after the I.V. or P.O. administration of Rh2. The plasma Rh2 and PPD concentrations were determined using HPLC-MS. The transformation from Rh2 to PPD, its absorption, and elimination were integrated into the mechanism based pharmacokinetic model to describe the pharmacokinetics of Rh2 and PPD simultaneously at 10 mg/kg. The concentration data collected following a 20 mg/kg dose of Rh2 was used for model validation. Results: Following Rh2 administration, PPD exhibited high exposure and atypical double peaks. The model described the abnormal kinetics well and was further validated using external data. A total of 11% of the administered Rh2 was predicted to be transformed into PPD and enter the systemic circulation after I.V. administration, and a total of 20% of Rh2 was predicted to be absorbed into the systemic circulation in PPD form after P.O. administration of Rh2. Conclusion: The developed model provides a useful tool to quantitatively study the deglycosylation kinetics of Rh2 and thus, provides a valuable resource for future pharmacokinetic studies of glycosides with similar deglycosylation metabolism.
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Affiliation(s)
- Hong-can Ren
- Key Lab of Drug Metabolism and Pharmacokinetics, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, China
- DMPK and Clinical Pharmacology Group, Hutchison MediPharma Ltd., Shanghai, China
- Department of Biology, GenFleet Therapeutics, Shanghai, China
| | - Jian-guo Sun
- Key Lab of Drug Metabolism and Pharmacokinetics, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, China
| | - Ji-ye A
- Key Lab of Drug Metabolism and Pharmacokinetics, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, China
- *Correspondence: Ji-ye A, ; Guang-ji Wang, ; Cheng-guang Yang,
| | - Sheng-hua Gu
- Key Lab of Drug Metabolism and Pharmacokinetics, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, China
- School of Pharmacy, Shanghai University of Tranditional Chinese Medicine, Shanghai, China
| | - Jian Shi
- Key Lab of Drug Metabolism and Pharmacokinetics, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, China
- College of Pharmacy, University of Michigan, Ann Arbor, MI, United States
| | - Feng Shao
- Key Lab of Drug Metabolism and Pharmacokinetics, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, China
| | - Hua Ai
- Key Lab of Drug Metabolism and Pharmacokinetics, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, China
| | - Jing-wei Zhang
- Key Lab of Drug Metabolism and Pharmacokinetics, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, China
| | - Ying Peng
- Key Lab of Drug Metabolism and Pharmacokinetics, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, China
| | - Bei Yan
- Key Lab of Drug Metabolism and Pharmacokinetics, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, China
| | - Qing Huang
- Key Lab of Drug Metabolism and Pharmacokinetics, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, China
- NMPA Key Laboratory for Impurity Profile of Chemical Drugs, Jiangsu Institute for Food and Drug Control, Nanjing, China
| | - Lin-sheng Liu
- Key Lab of Drug Metabolism and Pharmacokinetics, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, China
- Department of Pharmacy, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Yang Sai
- DMPK and Clinical Pharmacology Group, Hutchison MediPharma Ltd., Shanghai, China
| | - Guang-ji Wang
- Key Lab of Drug Metabolism and Pharmacokinetics, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, China
- *Correspondence: Ji-ye A, ; Guang-ji Wang, ; Cheng-guang Yang,
| | - Cheng-guang Yang
- Department of General Surgery, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- *Correspondence: Ji-ye A, ; Guang-ji Wang, ; Cheng-guang Yang,
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Chen W, Peng Y, Lin Q, Zhang T, Yan B, Bai L, Pan L. Germination Characteristics Associated With Glutathione S-Transferases Endowed Quizalofop-p-Ethyl Resistance in Polypogon fugax. Front Plant Sci 2022; 13:861056. [PMID: 35665161 PMCID: PMC9158530 DOI: 10.3389/fpls.2022.861056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Accepted: 04/15/2022] [Indexed: 06/15/2023]
Abstract
Quantification of germination characteristics between herbicide-resistant and -susceptible weeds might provide methods to control resistant weeds and permit better prediction of evolution and persistence of herbicide resistance. This study aimed to compare the germination characteristics of Asian minor bluegrass (Polypogon fugax) populations that are resistant or susceptible to quizalofop-p-ethyl under controlled conditions, which the resistance mechanism is involved in glutathione S-transferases (GSTs) metabolism-based resistance. No major differences in seed germination were found at diverse temperatures, pH ranges, and light conditions. However, a significant difference that seed response to a gradient of osmotic and salt stress between the resistant and susceptible P. fugax populations were found. Two stress response genes (P5CS-1 and CDPK-2) in P. fugax were likely involved in germination rate as well as germination speed in response to these stresses. Subsequently, population verification demonstrated that P5CS-1 and CDPK-2 genes may be linked to the resistance mechanism. Additionally, the two genes play an important role in response to salt stress and osmotic stress as shown by transcript abundance after stress treatments. Our findings suggest that the variation of the germination characteristics in P. fugax associates with the presence of GST-endowed resistance mechanism.
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Affiliation(s)
- Wen Chen
- College of Plant Protection, Hunan Agricultural University, Changsha, China
| | - Yajun Peng
- Plant Protection Institute, Hunan Academy of Agricultural Sciences, Changsha, China
| | - Qiaojiao Lin
- College of Plant Protection, Hunan Agricultural University, Changsha, China
| | | | - Bei Yan
- College of Plant Protection, Hunan Agricultural University, Changsha, China
| | - Lianyang Bai
- College of Plant Protection, Hunan Agricultural University, Changsha, China
- Hunan Agricultural Biotechnology Research Institute, Hunan Academy of Agricultural Sciences, Changsha, China
| | - Lang Pan
- College of Plant Protection, Hunan Agricultural University, Changsha, China
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Cenin D, Li P, Wang J, de Jonge L, Yan B, Tao S, Lansdorp-Vogelaar I. Optimising colorectal cancer screening in Shanghai, China: a modelling study. BMJ Open 2022; 12:e048156. [PMID: 35577474 PMCID: PMC9115025 DOI: 10.1136/bmjopen-2020-048156] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Accepted: 03/31/2022] [Indexed: 12/24/2022] Open
Abstract
INTRODUCTION To reduce the burden of colorectal cancer (CRC) in Shanghai, China, a CRC screening programme was commenced in 2013 inviting those aged 50-74 years to triennial screening with a faecal immunochemical test (FIT) and risk assessment. However, it is unknown whether this is the optimal screening strategy for this population. We aimed to determine the optimal CRC screening programme for Shanghai in terms of benefits, burden, harms and cost-effectiveness. METHODS Using Microsimulation Screening Analysis-Colon (MISCAN-Colon), we estimated the costs and effects of the current screening programme compared with a situation without screening. Subsequently, we estimated the benefits (life years gained (LYG)), burden (number of screening events, colonoscopies and false-positive tests), harms (number of colonoscopy complications) and costs (Renminb (¥)) of screening for 324 alternative screening strategies. We compared several different age ranges, screening modalities, intervals and FIT cut-off levels. An incremental cost-effectiveness analysis determined the optimal strategy assuming a willingness-to-pay of ¥193 931 per LYG. RESULTS Compared with no screening, the current screening programme reduced CRC incidence by 40% (19 cases per 1000 screened individuals) and CRC mortality by 67% (7 deaths). This strategy gained 32 additional life years, increased colonoscopy demand to 1434 per 1000 individuals and cost an additional ¥199 652. The optimal screening strategy was annual testing using a validated one-sample FIT, with a cut-off of 10 µg haemoglobin per gram from ages 45 to 80 years (incremental cost-effectiveness ratio, ¥62 107). This strategy increased LY by 0.18% and costs by 27%. Several alternative cost-effective strategies using a validated FIT offered comparable benefits to the current programme but lower burden and costs. CONCLUSIONS Although the current screening programme in Shanghai is effective at reducing CRC incidence and mortality, the programme could be optimised using a validated FIT. When implementing CRC screening, jurisdictions with limited health resources should use a validated test.
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Affiliation(s)
- Dayna Cenin
- Department of Public Health, Erasmus University Medical Centre, Rotterdam, The Netherlands
- Centre for Health Services Research, School of Population and Global Health, The University of Western Australia, Perth, Western Australia, Australia
| | - Pei Li
- The Center for Disease Prevention and Control Huangpu Shanghai, Shanghai, China
| | - Jie Wang
- Department of Public Health, Fudan University, Shanghai, China
| | - Lucie de Jonge
- Department of Public Health, Erasmus University Medical Centre, Rotterdam, The Netherlands
| | - Bei Yan
- Xi'an International Medical Center Hospital, Xi'an, China
- Shanghai Pudong New Area Center for Disease Control and Prevention, Shanghai, China
| | - Sha Tao
- Department of Public Health, Fudan University, Shanghai, China
| | - Iris Lansdorp-Vogelaar
- Department of Public Health, Erasmus University Medical Centre, Rotterdam, The Netherlands
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Li J, Long J, Zhang J, Liu N, Yan B, Tang L, Chen X, Peng C. Novel chloroquine derivative suppresses melanoma cell growth by DNA damage through increasing ROS levels. J Cell Mol Med 2022; 26:2579-2593. [PMID: 35332658 PMCID: PMC9077290 DOI: 10.1111/jcmm.17260] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Revised: 02/18/2022] [Accepted: 02/21/2022] [Indexed: 11/30/2022] Open
Abstract
Melanoma is a fatal cancer with a significant feature of resistance to traditional chemotherapeutic drugs and radiotherapy. A mutation in the kinase BRAF is observed in more than 66% of metastatic melanoma cases. Therefore, there is an urgent need to develop new BRAF-mutant melanoma inhibitors. High-dose chloroquine has been reported to have antitumour effects, but it often induces dose-limiting toxicity. In this study, a series of chloroquine derivatives were synthesized, and lj-2-66 had the best activity and was selected for further investigation. Furthermore, the anti-BRAF-mutant melanoma effect and mechanism of this compound were explored. CCK-8 and colony formation assays indicated that lj-2-66 significantly inhibited the proliferation of BRAF-mutant melanoma cells. Flow cytometry revealed that lj-2-66 induced G2/M arrest in melanoma cells and promoted apoptosis. Furthermore, lj-2-66 increased the level of ROS in melanoma cells and induced DNA damage. Interestingly, lj-2-66 also played a similar role in BRAF inhibitor-resistant melanoma cells. In summary, we found a novel chloroquine derivative, lj-2-66, that increased the level of ROS in melanoma cells and induced DNA damage, thus leading to G2/M arrest and apoptosis. These findings indicated that lj-2-66 may become a potential therapeutic drug for melanoma harbouring BRAF mutations.
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Affiliation(s)
- Jiaoduan Li
- Department of DermatologyXiangya Hospital, Central South UniversityChangshaChina
- Hunan Key Laboratory of Skin Cancer and PsoriasisXiangya HospitalChangshaChina
- Hunan Engineering Research Center of Skin Health and DiseaseXiangya HospitalChangshaChina
- National Clinical Research Center for Geriatric DisordersXiangya Hospital, Central South UniversityChangshaChina
| | - Jing Long
- Department of DermatologyXiangya Hospital, Central South UniversityChangshaChina
- Hunan Key Laboratory of Skin Cancer and PsoriasisXiangya HospitalChangshaChina
- Hunan Engineering Research Center of Skin Health and DiseaseXiangya HospitalChangshaChina
- National Clinical Research Center for Geriatric DisordersXiangya Hospital, Central South UniversityChangshaChina
| | - Jianglin Zhang
- Department of Dermatology, Shenzhen People’s Hospital, The Second Clinical Medical College, Jinan University, The First Affiliated HospitalSouthern University of Science and TechnologyShenzhenChina
| | - Nian Liu
- Department of DermatologyXiangya Hospital, Central South UniversityChangshaChina
- Hunan Key Laboratory of Skin Cancer and PsoriasisXiangya HospitalChangshaChina
- Hunan Engineering Research Center of Skin Health and DiseaseXiangya HospitalChangshaChina
- National Clinical Research Center for Geriatric DisordersXiangya Hospital, Central South UniversityChangshaChina
| | - Bei Yan
- Department of DermatologyXiangya Hospital, Central South UniversityChangshaChina
- Hunan Key Laboratory of Skin Cancer and PsoriasisXiangya HospitalChangshaChina
- Hunan Engineering Research Center of Skin Health and DiseaseXiangya HospitalChangshaChina
- National Clinical Research Center for Geriatric DisordersXiangya Hospital, Central South UniversityChangshaChina
| | - Ling Tang
- Department of DermatologyXiangya Hospital, Central South UniversityChangshaChina
- Hunan Key Laboratory of Skin Cancer and PsoriasisXiangya HospitalChangshaChina
- Hunan Engineering Research Center of Skin Health and DiseaseXiangya HospitalChangshaChina
- National Clinical Research Center for Geriatric DisordersXiangya Hospital, Central South UniversityChangshaChina
| | - Xiang Chen
- Department of DermatologyXiangya Hospital, Central South UniversityChangshaChina
- Hunan Key Laboratory of Skin Cancer and PsoriasisXiangya HospitalChangshaChina
- Hunan Engineering Research Center of Skin Health and DiseaseXiangya HospitalChangshaChina
- National Clinical Research Center for Geriatric DisordersXiangya Hospital, Central South UniversityChangshaChina
| | - Cong Peng
- Department of DermatologyXiangya Hospital, Central South UniversityChangshaChina
- Hunan Key Laboratory of Skin Cancer and PsoriasisXiangya HospitalChangshaChina
- Hunan Engineering Research Center of Skin Health and DiseaseXiangya HospitalChangshaChina
- National Clinical Research Center for Geriatric DisordersXiangya Hospital, Central South UniversityChangshaChina
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