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Fan P, Li S, Yang J, Yang K, Wu P, Dong Q, Zhou Y. Injectable, self-healing hyaluronic acid-based hydrogels for spinal cord injury repair. Int J Biol Macromol 2024; 263:130333. [PMID: 38408580 DOI: 10.1016/j.ijbiomac.2024.130333] [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: 12/06/2023] [Revised: 02/05/2024] [Accepted: 02/19/2024] [Indexed: 02/28/2024]
Abstract
The cystic cavity that develops following spinal cord injury is a major obstacle for repairing spinal cord injury (SCI). The injectable self-healing biomaterials treatment is a promising strategy to enhance tissue repair after traumatic spinal cord injury. Herein, a natural extracellular matrix (ECM) biopolymer hyaluronic acid-based hydrogel was developed based on multiple dynamic covalent bonds. The hydrogels exhibited excellent injectable and self-healing properties, could be effectively injected into the injury site, and filled the lesion cavity to accelerate the tissue repair of traumatic SCI. Moreover, the hydrogels were compatible with cells and various tissues and possessed proper stiffness matched with nervous tissue. Additionally, when implanted into the injured spinal cord site, the hyaluronic acid-based hydrogel promoted axonal regeneration and functional recovery by accelerating remyelination, axon regeneration, and angiogenesis. Overall, the injectable self-healing hyaluronic acid-based hydrogels are ideal biomaterials for treating traumatic SCI.
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Affiliation(s)
- Penghui Fan
- State Key Laboratory of New Textile Materials and Advanced Processing Technologies, Wuhan Textile University, 430073 Wuhan, China
| | - Shangzhi Li
- State Key Laboratory of New Textile Materials and Advanced Processing Technologies, Wuhan Textile University, 430073 Wuhan, China
| | - Junfeng Yang
- State Key Laboratory of New Textile Materials and Advanced Processing Technologies, Wuhan Textile University, 430073 Wuhan, China
| | - Kaidan Yang
- State Key Laboratory of New Textile Materials and Advanced Processing Technologies, Wuhan Textile University, 430073 Wuhan, China
| | - Ping Wu
- Oujiang Laboratory (Zhejiang Lab for Regenerative Medicine, Vision and Brain Health), School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou 325000, Zhejiang, China
| | - Qi Dong
- State Key Laboratory of New Textile Materials and Advanced Processing Technologies, Wuhan Textile University, 430073 Wuhan, China.
| | - Yingshan Zhou
- State Key Laboratory of New Textile Materials and Advanced Processing Technologies, Wuhan Textile University, 430073 Wuhan, China.
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Du X, Zhang Y, Wang C, Fan P, Zhu Y. Mobile recognition and positioning for multiple visible light communication cells using a convolutional neural network: publisher's note. Opt Lett 2024; 49:1765. [PMID: 38560857 DOI: 10.1364/ol.523698] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2024] [Indexed: 04/04/2024]
Abstract
This publisher's note contains a correction to Opt. Lett.48, 6468 (2024)10.1364/OL.503007.
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Zhou Z, Wang S, Fan P, Meng X, Cai X, Wang W, Ma L, Ma H, Su J. Borneol serves as an adjuvant agent to promote the cellular uptake of curcumin for enhancing its photodynamic fungicidal efficacy against Candida albicans. J Photochem Photobiol B 2024; 253:112875. [PMID: 38430681 DOI: 10.1016/j.jphotobiol.2024.112875] [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: 11/07/2023] [Revised: 02/05/2024] [Accepted: 02/22/2024] [Indexed: 03/05/2024]
Abstract
Candida albicans (C. albicans), a major opportunistic pathogenic fungus, is known to cause superficial skin infections. Unfortunately, the misuse of antibiotics has led to the emergence of drug resistance in fungi. Antimicrobial photodynamic therapy (aPDT), a non-antibiotic alternative, has shown potential in treating drug-resistant fungal infections. Curcumin is a photodynamically active phytochemical whose photodynamic fungicidal efficacy is largely dependent on its intracellular accumulation. However, curcumin faces challenges in penetrating the cytoplasm due to its poor water solubility and the fungal cell wall. Borneol, another monoterpenoid phytochemical, is known for its ability to enhance drug absorption. In this study, we showed that borneol improved the cellular uptake of curcumin, thereby enhancing its photodynamic fungicidal efficacy against C. albicans. This effect was attributed to borneol's ability to increase cell permeability. Transcriptomic analysis further confirmed that borneol disrupted the normal structure and function of the C. albicans cell wall and membrane, resulting in dysregulated mRNA expression of related genes and ultimately increased cell permeability. As a result, the excessive accumulation of curcumin in C. albicans triggered the overproduction of intracellular ROS upon exposure to blue light. These excessive intracellular ROS disrupted various cellular structures, interfered with essential cellular processes, inhibited biofilm formation and reduced virulence. Remarkably, borneol was also found to enhance curcumin uptake by C. albicans within biofilms, further enhancing the anti-biofilm efficacy of curcumin-mediated aPDT (Cur-aPDT). In conclusion, the results of this study strongly support the potential of borneol as an adjuvant agent to Cur-aPDT in treating superficial cutaneous fungal infections.
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Affiliation(s)
- Zhenlong Zhou
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China; China-Singapore International Joint Research Institute, Guangzhou, China
| | - Shengli Wang
- Institute of Biomedical Transformation, School of Basic Medicine and Public Health, Jinan University, Guangzhou 510632, People's Republic of China
| | - Penghui Fan
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China; China-Singapore International Joint Research Institute, Guangzhou, China
| | - Xiaofeng Meng
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China; China-Singapore International Joint Research Institute, Guangzhou, China
| | - Xinyu Cai
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Wen Wang
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Lin Ma
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China; China-Singapore International Joint Research Institute, Guangzhou, China
| | - Hang Ma
- Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, RI 02881, USA
| | - Jianyu Su
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China; China-Singapore International Joint Research Institute, Guangzhou, China; Overseas Expertise Introduction Center for Discipline Innovation of Food Nutrition and Human Health (111 Center), Guangzhou, China.
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Su J, Gao Y, Yang Y, Fan P, Zhou Z, Wang Z, Zhang X, Fang L. Natural Polysaccharide Film-Based Triboelectric Sensor for Fruit Transportation Collision Monitoring. ACS Appl Mater Interfaces 2024. [PMID: 38427325 DOI: 10.1021/acsami.3c17241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/02/2024]
Abstract
Transportation-induced damage to fresh produce is a big challenge in logistics. Current acceleration and pressure sensors for collision monitoring face issues of power dependency, high cost, and environmental concerns. Here, a self-powered and environmentally friendly triboelectric sensor has been developed to monitor fruit collisions in transportation packaging. Microcrystalline cellulose/chitosan and sodium alginate films were prepared as positive and negative tribo-layers to assemble a natural polysaccharide film-based triboelectric nanogenerator (NP-TENG). The NP-TENG's electrical output was proportional to the structure parameters (contact surface roughness and separation gap of the tribo-layers) and the vibration factors (force and frequency) and exhibited excellent stability and durability (over 100,000 cycles under 13 N at 10 Hz). The high mechanical-to-electrical conversion efficiency (instantaneous areal power density of 9.6 mW/m2) and force sensitivity (2.2 V/N) enabled the NP-TENG to be a potential sensor for monitoring fresh produce collisions in packaging during logistics. Transportation simulation measurements of kiwifruits verified that the sensor's electrical outputs increased with the vibration frequency and stacking layer while varying at different packaging locations. This study suggests that the NP-TENG can effectively monitor collision damage during fruit transportation, providing new insights into developing intelligent food packaging systems to reduce postharvest supply chain losses.
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Affiliation(s)
- Jianyu Su
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, Guangdong, China
- China-Singapore International Joint Research Institute, Guangzhou 510700, Guangdong, China
| | - Ya Gao
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, Guangdong, China
- China-Singapore International Joint Research Institute, Guangzhou 510700, Guangdong, China
| | - Yuan Yang
- School of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, Guangdong, China
| | - Penghui Fan
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, Guangdong, China
- China-Singapore International Joint Research Institute, Guangzhou 510700, Guangdong, China
| | - Zhenlong Zhou
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, Guangdong, China
- China-Singapore International Joint Research Institute, Guangzhou 510700, Guangdong, China
| | - Zhongxiang Wang
- China Rural Technology Development Center, No. 54 Sanlihe Road, Xicheng District, Beijing 100045, China
| | - Xiaoyuan Zhang
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, Guangdong, China
| | - Liming Fang
- China-Singapore International Joint Research Institute, Guangzhou 510700, Guangdong, China
- School of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, Guangdong, China
- Guangdong Provincial Key Laboratory of Technique and Equipment for Macromolecular Advanced Manufacturing, South China University of Technology, Wushan 381, Tianhe District, Guangzhou 510641, China
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Wang D, Yu L, Li X, Lu Y, Niu C, Fan P, Zhu H, Chen B, Wang S. Intelligent quantitative recognition of sulfide using machine learning-based ratiometric fluorescence probe of metal-organic framework UiO-66-NH 2/Ppix. J Hazard Mater 2024; 464:132950. [PMID: 37952335 DOI: 10.1016/j.jhazmat.2023.132950] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 10/23/2023] [Accepted: 11/06/2023] [Indexed: 11/14/2023]
Abstract
Sulfides possess either high toxicity or play crucial physiological role such as gas transmitter dependent upon dosage, hence the significant for their rapid sensitive and selective concentration determination. Herein, a machine learning enhanced ratiometric fluorescence sensor was engineered for sulfide determination by incorporating the nanometal-organic framework (UiO-66-NH2) along with protoporphyrin IX (Ppix). The blue fluorescence at 431 nm originated from the moiety of UiO-66-NH2 by 365 nm excitation serves as an internal calibration reference signal, while the red fluorescence at 629 nm from the moiety of Ppix serves as the analytical signal, and the intensity is correlated to the amount of sulfides. The fluorescence color of the sensor gradually varies from blue to red upon sequential addition of copper and sulfide ions, resulting in RGB (Red, Green, Blue) feature values for corresponding sulfide concentrations, which facilities the advanced data processing techniques using machine learning algorithms. On the basis of fluorescence image fingerprint extraction and machine learning algorithms, an online data analysis model was developed to improve the precision and accuracy of sulfide determination. The established model employed Linear Discriminant Analysis (LDA) and was subjected to rigorous cross-validation to ensure its robustness. By analyzing the correlation between RGB feature values and sulfide concentrations, the study highlighted a significant positive relationship between the red feature values and sulfide concentrations. The application of machine learning techniques on the ratiometric fluorescence signal of the UiO-66-NH2/Ppix probe demonstrated its potential for intelligent quantitative determination of sulfides, offering a valuable and efficient tool for pollution detection and real-time rapid environmental monitoring.
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Affiliation(s)
- Degui Wang
- School of Environment and Energy, South China University of Technology, Guangzhou 510006, People's Republic of China; School of Environmental Science and Engineering, Guangdong University of Petrochemical Technology, Maoming 525000, People's Republic of China
| | - Long Yu
- School of Environmental Science and Engineering, Guangdong University of Petrochemical Technology, Maoming 525000, People's Republic of China.
| | - Xin Li
- School of Environmental Science and Engineering, Guangdong University of Petrochemical Technology, Maoming 525000, People's Republic of China
| | - Yunfei Lu
- School of Environmental Science and Engineering, Guangdong University of Petrochemical Technology, Maoming 525000, People's Republic of China
| | - Chaoqun Niu
- School of Environment and Energy, South China University of Technology, Guangzhou 510006, People's Republic of China
| | - Penghui Fan
- School of Environment and Energy, South China University of Technology, Guangzhou 510006, People's Republic of China
| | - Houjuan Zhu
- School of Environment and Energy, South China University of Technology, Guangzhou 510006, People's Republic of China; Institute of Materials Research and Engineering, A⁎STAR (Agency for Science, Technology and Research), 138634, Singapore
| | - Bing Chen
- School of Environment and Energy, South China University of Technology, Guangzhou 510006, People's Republic of China.
| | - Suhua Wang
- School of Environmental Science and Engineering, Guangdong University of Petrochemical Technology, Maoming 525000, People's Republic of China.
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Liu M, Liu J, Liang W, Lu B, Fan P, Song Y, Wang M, Wu Y, Cai X. Recent advances and research progress on microsystems and bioeffects of terahertz neuromodulation. Microsyst Nanoeng 2023; 9:143. [PMID: 38025884 PMCID: PMC10643571 DOI: 10.1038/s41378-023-00612-1] [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: 05/08/2023] [Revised: 07/20/2023] [Accepted: 08/10/2023] [Indexed: 12/01/2023]
Abstract
Terahertz waves can interact with the nervous system of organisms under certain conditions. Compared to common optical modulation methods, terahertz waves have the advantages of low photon energy and low risk; therefore, the use of terahertz waves to regulate the nervous system is a promising new method of neuromodulation. However, most of the research has focused on the use of terahertz technology for biodetection, while relatively little research has been carried out on the biological effects of terahertz radiation on the nervous system, and there are almost no review papers on this topic. In the present article, we begin by reviewing principles and objects of research regarding the biological effects of terahertz radiation and summarizing the current state of related research from a variety of aspects, including the bioeffects of terahertz radiation on neurons in vivo and in vitro, novel regulation and detection methods with terahertz radiation devices and neural microelectrode arrays, and theoretical simulations of neural information encoding and decoding. In addition, we discuss the main problems and their possible causes and give some recommendations on possible future breakthroughs. This paper will provide insight and assistance to researchers in the fields of neuroscience, terahertz technology and biomedicine.
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Affiliation(s)
- Meiting Liu
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, 100190 China
- School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing, 100049 China
| | - Juntao Liu
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, 100190 China
- School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing, 100049 China
| | - Wei Liang
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, 100190 China
| | - Botao Lu
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, 100190 China
- School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing, 100049 China
| | - Penghui Fan
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, 100190 China
- School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing, 100049 China
| | - Yilin Song
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, 100190 China
- School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing, 100049 China
| | - Mixia Wang
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, 100190 China
- School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing, 100049 China
| | - Yirong Wu
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, 100190 China
- School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing, 100049 China
| | - Xinxia Cai
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, 100190 China
- School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing, 100049 China
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7
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Fan P, Lu YT, Han B, Zhou XL, Tian T. [Advances in Sengers syndrome]. Zhonghua Nei Ke Za Zhi 2023; 62:1245-1248. [PMID: 37766448 DOI: 10.3760/cma.j.cn112138-20221029-00801] [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: 09/29/2023]
Affiliation(s)
- P Fan
- Department of Cardiology, Fuwai Hospital, National Center of Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - Y T Lu
- Department of Cardiology, Fuwai Hospital, National Center of Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - B Han
- Department of Ophthalmology, Beijing Jishuitan Hospital, Capital Medical University, Beijing 100035, China
| | - X L Zhou
- Department of Cardiology, Fuwai Hospital, National Center of Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - T Tian
- Department of Cardiology, Fuwai Hospital, National Center of Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
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Xu Z, Mo F, Yang G, Fan P, Lu B, Liang W, Kong F, Jing L, Xu W, Liu J, Wang M, Wu Y, Cai X. Impaired Spatial Firing Representations of Neurons in the Medial Entorhinal Cortex of the Epileptic Rat Using Microelectrode Arrays. Research (Wash D C) 2023; 6:0229. [PMID: 37719050 PMCID: PMC10503993 DOI: 10.34133/research.0229] [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] [Figures] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Accepted: 08/28/2023] [Indexed: 09/19/2023]
Abstract
Epilepsy severely impairs the cognitive behavior of patients. It remains unclear whether epilepsy-induced cognitive impairment is associated with neuronal activities in the medial entorhinal cortex (MEC), a region known for its involvement in spatial cognition. To explore this neural mechanism, we recorded the spikes and local field potentials from MEC neurons in lithium-pilocarpine-induced epileptic rats using self-designed microelectrode arrays. Through the open field test, we identified spatial cells exhibiting spatially selective firing properties and assessed their spatial representations in relation to the progression of epilepsy. Meanwhile, we analyzed theta oscillations and theta modulation in both excitatory and inhibitory neurons. Furthermore, we used a novel object recognition test to evaluate changes in spatial cognitive ability of epileptic rats. After the epilepsy modeling, the spatial tuning of various types of spatial cells had suffered a rapid and pronounced damage during the latent period (1 to 5 d). Subsequently, the firing characteristics and theta oscillations were impaired. In the chronic period (>10 d), the performance in the novel object experiment deteriorated. In conclusion, our study demonstrates the detrimental effect on spatial representations and electrophysiological properties of MEC neurons in the epileptic latency, suggesting the potential use of these changes as a "functional biomarker" for predicting cognitive impairment caused by epilepsy.
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Affiliation(s)
- Zhaojie Xu
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute,
Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Fan Mo
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute,
Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Gucheng Yang
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute,
Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Penghui Fan
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute,
Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Botao Lu
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute,
Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Wei Liang
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute,
Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Fanli Kong
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute,
Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Luyi Jing
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute,
Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Wei Xu
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute,
Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Juntao Liu
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute,
Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Mixia Wang
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute,
Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yirong Wu
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute,
Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xinxia Cai
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute,
Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
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9
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Krivinko JM, DeChellis-Marks MR, Zeng L, Fan P, Lopez OL, Ding Y, Wang L, Kofler J, MacDonald ML, Sweet RA. Targeting the post-synaptic proteome has therapeutic potential for psychosis in Alzheimer Disease. Commun Biol 2023; 6:598. [PMID: 37268664 PMCID: PMC10238472 DOI: 10.1038/s42003-023-04961-5] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Accepted: 05/20/2023] [Indexed: 06/04/2023] Open
Abstract
Individuals with Alzheimer Disease who develop psychotic symptoms (AD + P) experience more rapid cognitive decline and have reduced indices of synaptic integrity relative to those without psychosis (AD-P). We sought to determine whether the postsynaptic density (PSD) proteome is altered in AD + P relative to AD-P, analyzing PSDs from dorsolateral prefrontal cortex of AD + P, AD-P, and a reference group of cognitively normal elderly subjects. The PSD proteome of AD + P showed a global shift towards lower levels of all proteins relative to AD-P, enriched for kinases, proteins regulating Rho GTPases, and other regulators of the actin cytoskeleton. We computationally identified potential novel therapies predicted to reverse the PSD protein signature of AD + P. Five days of administration of one of these drugs, the C-C Motif Chemokine Receptor 5 inhibitor, maraviroc, led to a net reversal of the PSD protein signature in adult mice, nominating it as a novel potential treatment for AD + P.
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Affiliation(s)
- J M Krivinko
- Department of Psychiatry, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - M R DeChellis-Marks
- Department of Neurobiology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - L Zeng
- Department of Biostatistics, University of Pittsburgh School of Public Health, Pittsburgh, PA, USA
| | - P Fan
- Department of Pharmaceutical Sciences, Computational Chemical Genomics Screening Center, University of Pittsburgh School of Pharmacy, Pittsburgh, PA, USA
| | - O L Lopez
- Department of Psychiatry, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
- Department of Neurology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Y Ding
- Department of Biostatistics, University of Pittsburgh School of Public Health, Pittsburgh, PA, USA
| | - L Wang
- Department of Pharmaceutical Sciences, Computational Chemical Genomics Screening Center, University of Pittsburgh School of Pharmacy, Pittsburgh, PA, USA
| | - J Kofler
- Department of Pathology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - M L MacDonald
- Department of Psychiatry, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - R A Sweet
- Department of Psychiatry, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA.
- Department of Neurology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA.
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Lu B, Fan P, Li M, Wang Y, Liang W, Yang G, Mo F, Xu Z, Shan J, Song Y, Liu J, Wu Y, Cai X. Detection of neuronal defensive discharge information transmission and characteristics in periaqueductal gray double-subregions using PtNP/PEDOT:PSS modified microelectrode arrays. Microsyst Nanoeng 2023; 9:70. [PMID: 37275263 PMCID: PMC10232427 DOI: 10.1038/s41378-023-00546-8] [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: 01/14/2023] [Revised: 03/14/2023] [Accepted: 03/23/2023] [Indexed: 06/07/2023]
Abstract
Threatened animals respond with appropriate defensive behaviors to survive. It has been accepted that midbrain periaqueductal gray (PAG) plays an essential role in the circuitry system and organizes defensive behavioral responses. However, the role and correlation of different PAG subregions in the expression of different defensive behaviors remain largely unexplored. Here, we designed and manufactured a microelectrode array (MEA) to simultaneously detect the activities of dPAG and vPAG neurons in freely behaving rats. To improve the detection performance of the MEAs, PtNP/PEDOT:PSS nanocomposites were modified onto the MEAs. Subsequently, the predator odor was used to induce the rat's innate fear, and the changes and information transmission in neuronal activities were detected in the dPAG and vPAG. Our results showed that the dPAG and vPAG participated in innate fear, but the activation degree was distinct in different defense behaviors. During flight, neuronal responses were stronger and earlier in the dPAG than the vPAG, while vPAG neurons responded more strongly during freezing. By applying high-performance MEA, it was revealed that neural information spread from the activated dPAG to the weakly activated vPAG. Our research also revealed that dPAG and vPAG neurons exhibited different defensive discharge characteristics, and dPAG neurons participated in the regulation of defense responses with burst-firing patterns. The slow activation and continuous firing of vPAG neurons cooresponded with the regulation of long-term freezing responses. The results demonstrated the important role of PAG neuronal activities in controlling different aspects of defensive behaviors and provided novel insights for investigating defense from the electrophysiological perspective.
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Affiliation(s)
- Botao Lu
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, 100190 China
- University of Chinese Academy of Sciences, Beijing, 100049 China
| | - Penghui Fan
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, 100190 China
- University of Chinese Academy of Sciences, Beijing, 100049 China
| | - Ming Li
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, 100190 China
- University of Chinese Academy of Sciences, Beijing, 100049 China
| | - Yiding Wang
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, 100190 China
- University of Chinese Academy of Sciences, Beijing, 100049 China
| | - Wei Liang
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, 100190 China
| | - Gucheng Yang
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, 100190 China
- University of Chinese Academy of Sciences, Beijing, 100049 China
| | - Fan Mo
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, 100190 China
- University of Chinese Academy of Sciences, Beijing, 100049 China
| | - Zhaojie Xu
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, 100190 China
- University of Chinese Academy of Sciences, Beijing, 100049 China
| | - Jin Shan
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, 100190 China
- University of Chinese Academy of Sciences, Beijing, 100049 China
| | - Yilin Song
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, 100190 China
- University of Chinese Academy of Sciences, Beijing, 100049 China
| | - Juntao Liu
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, 100190 China
- University of Chinese Academy of Sciences, Beijing, 100049 China
| | - Yirong Wu
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, 100190 China
- University of Chinese Academy of Sciences, Beijing, 100049 China
| | - Xinxia Cai
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, 100190 China
- University of Chinese Academy of Sciences, Beijing, 100049 China
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11
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Shan J, Song Y, Wang Y, Fan P, Lu B, Luo J, Xu W, Jing L, Mo F, Hu R, Luo Y, Mao G, Wang Y, Cai X. Highly Activated Neuronal Firings Monitored by Implantable Microelectrode Array in the Paraventricular Thalamus of Insomnia Rats. Sensors (Basel) 2023; 23:4629. [PMID: 37430543 DOI: 10.3390/s23104629] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Revised: 05/04/2023] [Accepted: 05/08/2023] [Indexed: 07/12/2023]
Abstract
Insomnia is a common sleep disorder around the world, which is harmful to people's health, daily life, and work. The paraventricular thalamus (PVT) plays an essential role in the sleep-wake transition. However, high temporal-spatial resolution microdevice technology is lacking for accurate detection and regulation of deep brain nuclei. The means for analyzing sleep-wake mechanisms and treating sleep disorders are limited. To detect the relationship between the PVT and insomnia, we designed and fabricated a special microelectrode array (MEA) to record electrophysiological signals of the PVT for insomnia and control rats. Platinum nanoparticles (PtNPs) were modified onto an MEA, which caused the impedance to decrease and improved the signal-to-noise ratio. We established the model of insomnia in rats and analyzed and compared the neural signals in detail before and after insomnia. In insomnia, the spike firing rate was increased from 5.48 ± 0.28 spike/s to 7.39 ± 0.65 spike/s, and the power of local field potential (LFP) decreased in the delta frequency band and increased in the beta frequency band. Furthermore, the synchronicity between PVT neurons declined, and burst-like firing was observed. Our study found neurons of the PVT were more activated in the insomnia state than in the control state. It also provided an effective MEA to detect the deep brain signals at the cellular level, which conformed with macroscopical LFP and insomnia symptoms. These results laid the foundation for studying PVT and the sleep-wake mechanism and were also helpful for treating sleep disorders.
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Affiliation(s)
- Jin Shan
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, China
- School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yilin Song
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, China
- School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yiding Wang
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, China
- School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Penghui Fan
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, China
- School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Botao Lu
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, China
- School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jinping Luo
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, China
- School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Wei Xu
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, China
- School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Luyi Jing
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, China
- School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Fan Mo
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, China
- School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Ruilin Hu
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, China
- School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yan Luo
- Department of Anesthesiology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, China
| | - Gang Mao
- The Fourth People's Hospital of Jinan, Jinan 250031, China
| | - Ying Wang
- Department of Anesthesiology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, China
| | - Xinxia Cai
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, China
- School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
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12
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Yang G, Wang Y, Xu Z, Zhang X, Ruan W, Mo F, Lu B, Fan P, Dai Y, He E, Song Y, Wang C, Liu J, Cai X. PtNPs/PEDOT:PSS-Modified Microelectrode Arrays for Detection of the Discharge of Head Direction Cells in the Retrosplenial Cortex of Rats under Dissociation between Visual and Vestibular Inputs. Biosensors (Basel) 2023; 13:bios13050496. [PMID: 37232857 DOI: 10.3390/bios13050496] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 04/15/2023] [Accepted: 04/17/2023] [Indexed: 05/27/2023]
Abstract
The electrophysiological activities of head direction (HD) cells under visual and vestibular input dissociation are important to understanding the formation of the sense of direction in animals. In this paper, we fabricated a PtNPs/PEDOT:PSS-modified MEA to detect changes in the discharge of HD cells under dissociated sensory conditions. The electrode shape was customized for the retrosplenial cortex (RSC) and was conducive to the sequential detection of neurons at different depths in vivo when combined with a microdriver. The recording sites of the electrode were modified with PtNPs/PEDOT:PSS to form a three-dimensional convex structure, leading to closer contact with neurons and improving the detection performance and signal-to-noise ratio of the MEA. We designed a rotating cylindrical arena to separate the visual and vestibular information of the rats and detected the changes in the directional tuning of the HD cells in the RSC. The results showed that after visual and vestibular sensory dissociation, HD cells used visual information to establish newly discharged directions which differed from the original direction. However, with the longer time required to process inconsistent sensory information, the function of the HD system gradually degraded. After recovery, the HD cells reverted to their newly established direction rather than the original direction. The research based on our MEAs revealed how HD cells process dissociated sensory information and contributes to the study of the spatial cognitive navigation mechanism.
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Affiliation(s)
- Gucheng Yang
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, China
- School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yiding Wang
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, China
- School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zhaojie Xu
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, China
- School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xue Zhang
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, China
| | - Wang Ruan
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, China
| | - Fan Mo
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, China
- School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Botao Lu
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, China
- School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Penghui Fan
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, China
- School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yuchuan Dai
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, China
- School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Enhui He
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, China
- School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yilin Song
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, China
- School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | | | - Juntao Liu
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, China
- School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xinxia Cai
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, China
- School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
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13
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Husnain A, Arshad U, Poindexter MB, Zimpel R, Marinho MN, Perdomo MC, Fan P, Jeong KC, Nelson CD, Sheldon IM, Bromfield JJ, Santos JEP. Induced endometritis in early lactation compromises production and reproduction in dairy cows. J Dairy Sci 2023; 106:4198-4213. [PMID: 37080784 DOI: 10.3168/jds.2022-22846] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Accepted: 12/13/2022] [Indexed: 04/22/2023]
Abstract
Objectives of this experiment were to study the effect of infusing utero-pathogenic bacteria to induce endometrial inflammation on productive performance in early lactation and subsequent reproduction. Although endometritis is associated with perturbed reproduction, numerous factors may contribute to the observed association. It was hypothesized that induced endometrial inflammation, resulting in localized and systemic inflammatory responses, compromises production and reproduction. Holstein cows without clinical disease and with less than 18% polymorphonuclear leukocytes (PMN) in endometrial cytology on d 31 ± 3 postpartum had their estrous cycle synchronized. Cows were blocked by parity and genomic breeding value for cow conception rate and, within block, assigned randomly to remain as untreated controls (CON; n = 37) or to receive an intrauterine infusion of 5.19 × 108 cfu Escherichia coli and 4.34 × 108 cfu Trueperella pyogenes during the luteal phase to induce endometrial inflammation (INF; n = 48). Endometrial cytology was taken on d 2 and 7 after treatment to evaluate the proportion of PMN. Rectal temperature, dry matter intake, and yields of milk and components were measured in the first 7 d after treatment. Blood serum was analyzed for concentration of haptoglobin. Leukocytes were isolated from blood on d 2 and 7 after treatment and on d 19 after artificial insemination (AI) and mRNA was quantified for a select group of genes. Cows received AI and reproduction was followed for 300 d postpartum. Bacterial infusion induced endometrial inflammation with increased proportions of PMN in the endometrial cytology on d 2 (4.4 ± 0.7 vs. 26.3 ± 2.8%) and 7 (10.9 ± 1.7 vs. 17.4 ± 2.1%) after treatment, resulting in increased mean prevalence of subclinical endometritis (>10% PMN; 23.3 ± 6.3 vs. 80.9 ± 5.1%). Rectal temperature did not differ between CON and INF, but the concentration of haptoglobin in serum tended to increase in INF compared with CON (113 ± 14 vs. 150 ± 16 µg/mL). Induced endometrial inflammation reduced yields of milk (44.9 ± 0.8 vs. 41.6 ± 0.8 kg/d), protein (1.19 ± 0.03 vs. 1.12 ± 0.03 kg/d), and lactose (2.17 ± 0.04 vs. 2.03 ± 0.04 kg/d) and tended to reduce dry matter intake (20.7 ± 0.5 vs. 19.4 ± 0.6 kg/d) in the first 7 d after treatment. Indeed, the reduction in milk yield lasted 4 wk. However, treatment did not affect yields of energy-corrected milk or fat because treatment with INF increased the concentration of fat in milk (3.54 ± 0.10 vs. 3.84 ± 0.10%). Induced endometrial inflammation reduced pregnancy per AI at all inseminations (33.4 ± 5.1 vs. 21.6 ± 3.7%) and the hazard of pregnancy (0.61; 95% CI = 0.36-1.04), which extended the median days open by 24 d. Blood leukocytes from INF cows had increased mRNA expression of the pro-inflammatory gene IL1B on d 2 and 7 after treatment, but reduced expression of the IFN-stimulated genes ISG15 and MX2 on d 19 after AI. Induced endometrial inflammation depressed production and caused long-term negative effects on reproduction in lactating dairy cows.
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Affiliation(s)
- A Husnain
- Department of Animal Sciences, University of Florida, Gainesville 32611
| | - U Arshad
- Department of Animal Sciences, University of Florida, Gainesville 32611
| | - M B Poindexter
- Department of Animal Sciences, University of Florida, Gainesville 32611
| | - R Zimpel
- Department of Animal Sciences, University of Florida, Gainesville 32611
| | - M Nehme Marinho
- Department of Animal Sciences, University of Florida, Gainesville 32611
| | - M C Perdomo
- Department of Animal Sciences, University of Florida, Gainesville 32611
| | - P Fan
- Department of Animal Sciences, University of Florida, Gainesville 32611
| | - K C Jeong
- Department of Animal Sciences, University of Florida, Gainesville 32611
| | - C D Nelson
- Department of Animal Sciences, University of Florida, Gainesville 32611
| | - I M Sheldon
- Swansea University Medical School, Swansea University, Swansea, United Kingdom, SA2 8PP
| | - J J Bromfield
- Department of Animal Sciences, University of Florida, Gainesville 32611; DH Barron Reproductive and Perinatal Biology Research Program, University of Florida, Gainesville 32611
| | - J E P Santos
- Department of Animal Sciences, University of Florida, Gainesville 32611; DH Barron Reproductive and Perinatal Biology Research Program, University of Florida, Gainesville 32611.
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14
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Xie J, Dai Y, Xing Y, Wang Y, Yang G, He E, Xu Z, Fan P, Mo F, Wu Y, Song Y, Cai X. PtNPs/rGO-GluOx/mPD Directionally Electroplated Dual-Mode Microelectrode Arrays for Detecting the Synergistic Relationship between the Cortex and Hippocampus of Epileptic Rats. ACS Sens 2023; 8:1810-1818. [PMID: 37014663 DOI: 10.1021/acssensors.3c00140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023]
Abstract
Precise and directional couplings of functional nanomaterials with implantable microelectrode arrays (IMEAs) are critical for the manufacture of sensitive enzyme-based electrochemical neural sensors. However, there is a gap between the microscale of IMEA and conventional bioconjugation techniques for enzyme immobilization, which leads to a series of challenges such as limited sensitivity, signal crosstalk, and high detection voltage. Here, we developed a novel method using carboxylated graphene oxide (cGO) to directionally couple the glutamate oxidase (GluOx) biomolecules onto the neural microelectrode to monitor glutamate concentration and electrophysiology in the cortex and hippocampus of epileptic rats under RuBi-GABA modulation. The resulting glutamate IMEA exhibited good performance involving less signal crosstalk between microelectrodes, lower reaction potential (0.1 V), and higher linear sensitivity (141.00 ± 5.66 nA μM-1 mm-2). The excellent linearity ranged from 0.3 to 68 μM (R = 0.992), and the limit of detection was 0.3 μM. For epileptic rats, the proposed IMEA sensitively obtained synergetic variations in the action potential (Spike), local field potentials (LFPs), and glutamate of the cortex and hippocampus during seizure and RuBi-GABA inhibition. We found that the increase in glutamate preceded the burst of electrophysiological signals. At the same time, both changes in the hippocampus preceded the cortex. This reminded us that glutamate changes in the hippocampus could serve as important indicators for early warning of epilepsy. Our findings provided a new technical strategy for directionally stabilizing enzymes onto the IMEA with versatile implications for various biomolecules' modification and facilitated the development of detecting tools for understanding the neural mechanism.
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Affiliation(s)
- Jingyu Xie
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, P. R. China
- School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Yuchuan Dai
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, P. R. China
- School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Yu Xing
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, P. R. China
- School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Yiding Wang
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, P. R. China
- School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Gucheng Yang
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, P. R. China
- School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Enhui He
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, P. R. China
- School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Zhaojie Xu
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, P. R. China
- School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Penghui Fan
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, P. R. China
- School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Fan Mo
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, P. R. China
- School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Yirong Wu
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, P. R. China
- School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Yilin Song
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, P. R. China
- School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Xinxia Cai
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, P. R. China
- School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing 100049, P. R. China
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15
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Fan P, Dong Q, Yang J, Chen Y, Yang H, Gu S, Xu W, Zhou Y. Flexible dual-functionalized hyaluronic acid hydrogel adhesives formed in situ for rapid hemostasis. Carbohydr Polym 2023; 313:120854. [PMID: 37182954 DOI: 10.1016/j.carbpol.2023.120854] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Revised: 03/24/2023] [Accepted: 03/25/2023] [Indexed: 04/07/2023]
Abstract
Hydrogel adhesives integrating both rapid and strong adhesion to blooding tissues and biocompatibility are highly desired for fast hemostasis. Herein, a flexible hyaluronic acid hydrogel adhesive is fabricated via photocrosslinking of the solution originating from dopamine-conjugated maleic hyaluronic acid (DMHA) in situ. The introduction of acrylate groups with high substitutions into the hydrogel matrix endows the adhesive with rapid gelation and strong tissue adhesion properties through photopolymerization. Moreover, the high substitution of catechol groups with unoxidized state can not only induce red blood cell aggregation and platelets adhesion but also adhere to wound tissue to further enhance hemostasis. Based on its bio-adhesion and procoagulant activity, the DMHA hydrogel formed in situ reveals superior hemostatic performance in the rat liver injury model and noncompressible hemorrhage model, and rabbit femoral artery puncture model, compared to commercial products (gauze, absorbable gelatin sponge) and oxidized DMHA (SMHA) hydrogel. Besides, the hydrogel exhibited good adaptability, biodegradability, and superior cytocompatibility as well as negligible inflammation. This hydrogel adhesive is a promising biological adhesive for hemorrhage control.
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Wang Y, Sui X, Luo J, Yang G, Fan P, Lu B, Li M, Xu Z, Qu L, Song Y, Li Y, Cai X. A Microelectrode Array Modified by PtNPs/PB Nanocomposites Used for the Detection and Analysis of Glucose-Sensitive Neurons under Different Blood Glucose States. ACS Appl Bio Mater 2023; 6:1260-1271. [PMID: 36884222 DOI: 10.1021/acsabm.3c00006] [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] [Indexed: 03/09/2023]
Abstract
Hypoglycemia state damages the organism, and glucose-excited and glucose-inhibited neurons from the ventral medial hypothalamus can regulate this state. Therefore, it is crucial to understand the functional mechanism between blood glucose and electrophysiology of glucose-excited and glucose-inhibited neurons. To better detect and analyze this mechanism, a PtNPs/PB nanomaterials modified 32-channel microelectrode array with low impedance (21.91 ± 6.80 kΩ), slight phase delay (-12.7° ± 2.7°), high double layer capacitance (0.606 μF), and biocompatibility was developed to realize in vivo real-time detection of the electrophysiology activities of glucose-excited and glucose-inhibited neurons. The phase-locking level of some glucose-inhibited neurons elevated during fasting (low blood glucose state) and showed theta rhythms after glucose injection (high blood glucose state). With an independent oscillating ability, glucose-inhibited neurons can provide an essential indicator to prevent severe hypoglycemia. The results reveal a mechanism for glucose-sensitive neurons to respond to blood glucose. Some glucose-inhibited neurons can integrate glucose information input and convert it into theta oscillating or phase lock output. It helps in enhancing the interaction between neurons and glucose. Therefore, the research can provide a basis for further controlling blood glucose by modulating the characteristics of neuronal electrophysiology. This helps reduce the damage of organisms under energy-limiting conditions, such as prolonged manned spaceflight or metabolic disorders.
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Affiliation(s)
- Yiding Wang
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, PR China
- School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Xiukun Sui
- State Key Laboratory of Space Medicine Fundamentals and Application, China Astronaut Research and Training Center, Beijing 100094, PR China
| | - Jinping Luo
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, PR China
- School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Gucheng Yang
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, PR China
- School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Penghui Fan
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, PR China
- School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Botao Lu
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, PR China
- School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Ming Li
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, PR China
- School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Zhaojie Xu
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, PR China
- School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Lina Qu
- State Key Laboratory of Space Medicine Fundamentals and Application, China Astronaut Research and Training Center, Beijing 100094, PR China
| | - Yilin Song
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, PR China
- School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Yinghui Li
- State Key Laboratory of Space Medicine Fundamentals and Application, China Astronaut Research and Training Center, Beijing 100094, PR China
| | - Xinxia Cai
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, PR China
- School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing 100049, PR China
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Fan P, Lei R, Wang Y, Zhang M, Guo C, Fan L, Wang J. WCN23-0135 IMG-025, EXHIBITS PROMISING POTENTIAL IN AMELIORATING IMMUNOGLOBULIN A NEPHROPATHY VIA INHIBITION OF LECTIN-MEDIATED COMPLEMENT ACTIVATION. Kidney Int Rep 2023. [DOI: 10.1016/j.ekir.2023.02.467] [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: 03/22/2023] Open
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18
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Lou S, Yu R, Wang S, Fan P, Liu J, Tang T. Synergies between phosphomolybdate and aluminum diethylphosphinate acting as temperature-response microparticles for promoting fire safety of epoxy resin. POLYMER 2023. [DOI: 10.1016/j.polymer.2023.125715] [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: 01/19/2023]
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Pu Y, Liu Q, Liu H, Bai H, Huang W, Xi M, Fan P. Association between CYP2E1 C-1054T and 96-bp I/D genetic variations and the risk of polycystic ovary syndrome in Chinese women. J Endocrinol Invest 2023; 46:67-78. [PMID: 35943720 DOI: 10.1007/s40618-022-01885-5] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Accepted: 07/27/2022] [Indexed: 01/12/2023]
Abstract
PURPOSE To investigate the association of cytochrome P450 2E1 (CYP2E1) C-1054T (rs2031920) and 96-bp I/D genetic variations with the risk of polycystic ovary syndrome (PCOS), and to estimate the effects of genotypes on the clinical, metabolic, hormonal, and oxidative stress indicators. METHODS This case-control study included 762 control women and 1034 patients with PCOS. Genotypes were determined using polymerase chain reaction and/or restriction fragment length polymorphism analysis. Clinical and biochemical parameters were also analyzed. RESULTS Frequencies of the TT + CT genotype (35.4 vs. 28.9%) and T allele (19.6 vs. 16.0%) of the CYP2E1 C-1054T polymorphism were significantly higher in the PCOS group than in the control group (OR = 1.350, 95% CI 1.103-1.652, P = 0.004 for the dominant model). Genotype TT + CT remained a significant predictor of PCOS in a logistic regression model including age, body mass index (BMI), and recruitment year of participants (OR = 1.345, 95% CI 1.071-1.688, P = 0.011). No statistical differences were found in the genotype and allele frequencies of CYP2E1 96-bp I/D polymorphism. However, the combined genotype DD/TT + CT was related to an increased risk of PCOS when the DD/CC wild-type combined genotype was used as a reference. Patients with the I allele of 96-bp I/D polymorphism had a lower BMI but higher plasma apolipoprotein B and oxidized low-density lipoprotein cholesterol levels than those with the DD genotype. CONCLUSION CYP2E1 C-1054T, but not 96-bp I/D, genetic polymorphism is associated with an increased risk of PCOS in Chinese women.
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Affiliation(s)
- Y Pu
- Laboratory of Genetic Disease and Perinatal Medicine, Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, 610041, Sichuan, People's Republic of China
| | - Q Liu
- Laboratory of Genetic Disease and Perinatal Medicine, Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, 610041, Sichuan, People's Republic of China
| | - H Liu
- Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu, 610041, Sichuan, People's Republic of China
| | - H Bai
- Laboratory of Genetic Disease and Perinatal Medicine, Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, 610041, Sichuan, People's Republic of China
| | - W Huang
- Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu, 610041, Sichuan, People's Republic of China
| | - M Xi
- Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu, 610041, Sichuan, People's Republic of China
| | - P Fan
- Laboratory of Genetic Disease and Perinatal Medicine, Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, 610041, Sichuan, People's Republic of China.
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Li S, Ke Z, Peng X, Fan P, Chao J, Wu P, Xiao P, Zhou Y. Injectable and fast gelling hyaluronate hydrogels with rapid self-healing ability for spinal cord injury repair. Carbohydr Polym 2022; 298:120081. [DOI: 10.1016/j.carbpol.2022.120081] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Revised: 08/28/2022] [Accepted: 09/02/2022] [Indexed: 12/30/2022]
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21
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Fan P, Ye YZ, Ma X. [Comparison on the prognosis of severe aortic stenosis patients treated with transcatheter aortic valve replacement versus surgical aortic valve replacement: a systematic review and meta-analysis]. Zhonghua Xin Xue Guan Bing Za Zhi 2022; 50:913-919. [PMID: 36096710 DOI: 10.3760/cma.j.cn112148-20220211-00100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Objective: To systematically review the prognosis of transcatheter aortic valve replacement (TAVR) versus surgical aortic valve replacement (SAVR) in patients with severe aortic stenosis. Methods: A systematic search of PubMed, EMBASE, Scopus, Cochrane Library, China biomedical literature database, China journal full text database (CNKI), Wanfang database and VIP database from January 2012 to February 2022 was conducted for randomized controlled trial (RCT) that comparing TAVR and SAVR in the treatment of severe aortic stenosis. The primary outcomes were the incidence of all-cause mortality, stroke incidence, reoperation rate and complications (pacemaker implantation, atrial fibrillation) at 1 month and 1, 2, 5 years after operation. Jadad scale was used to evaluate the literature quality of RCTs. All statistical analyses were performed using the standard statistical procedures provided in RevMan 5.4.1. Results: A total of 17 studies including 11 712 patients were identified, including 6 007 patients treated with TAVR and 5 705 patients treated with SAVR. There were 4 high-quality studies and 13 medium-quality studies. The results of meta-analysis showed that the rate of new onset atrial fibrillation was lower in TAVR group than that in SAVR group (RR=0.28, 95%CI 0.21-0.38, P<0.001), and there was no significant difference in all-cause death, stroke, pacemaker implantation and reoperation rate (all P>0.05) at 30 days follow-up. At one year after TAVR and SAVR treatment, all-cause mortality (RR=0.85, 95%CI 0.74-0.97, P=0.01) and new onset atrial fibrillation (RR=0.28, 95%CI 0.20-0.39, P<0.001) were lower in TAVR group than SAVR group. However, the pacemaker implantation rate was higher in TAVR group than that of SAVR group (RR=1.79, 95%CI 1.11-2.89, P=0.02), while there was no significant difference in the incidence of stroke and reoperation between the two groups (P>0.05). At two years after TAVR and SAVR treatment, the pacemaker implantation rate was higher in TAVR group than that in SAVR group (RR=2.23, 95%CI 1.28-3.86, P=0.004), and the rate of new atrial fibrillation was lower in TAVR group than that in SAVR group (RR=0.46, 95%CI 0.38-0.56, P<0.001). There was no significant difference in all-cause death, stroke and reoperation rates between the two groups (P>0.05). At five years after TAVR and SAVR treatment, the pacemaker implantation rate (RR=1.89, 95%CI 1.13-3.17, P=0.02) and reoperation rate (RR=3.64, 95%CI 1.75-7.58, P=0.000 5) were higher in TAVR group than those in SAVR group, while the rate of new onset atrial fibrillation was lower in TAVR group than that in SAVR group (RR=0.45, 95%CI 0.37-0.55, P<0.001). There was no significant difference in all-cause death and stroke incidence between the two groups (all P>0.05). Conclusions: The all-cause mortality and the incidence of new onset atrial fibrillation after TAVR are lower than SAVR, and TAVR is a preferred therapy for patients with aortic stenosis.
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Affiliation(s)
- P Fan
- Department of Heart Function, the First Affiliated Hospital of Xinjiang Medical University,State Key Laboratory of Pathogenesis, Prevention and Treatment of High Incidence Diseases in Central Asia, Urumqi 830000, China
| | - Y Z Ye
- Department of Heart Function, the First Affiliated Hospital of Xinjiang Medical University,State Key Laboratory of Pathogenesis, Prevention and Treatment of High Incidence Diseases in Central Asia, Urumqi 830000, China
| | - X Ma
- Center of Heart, First Affiliated Hospital of Xinjiang Medical University, Urumqi 830000, China
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22
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Mo F, Xu Z, Yang G, Fan P, Wang Y, Lu B, Liu J, Wang M, Jing L, Xu W, Li M, Shan J, Song Y, Cai X. Single-neuron detection of place cells remapping in short-term memory using motion microelectrode arrays. Biosens Bioelectron 2022; 217:114726. [PMID: 36174358 DOI: 10.1016/j.bios.2022.114726] [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: 07/03/2022] [Revised: 09/06/2022] [Accepted: 09/13/2022] [Indexed: 11/02/2022]
Abstract
Place cells establish rapid mapping relationships between the external environment and themselves in a new context. However, the mapping relationships of environmental cues to place cells in short-term memory is still completely unknown. In this work, we designed a silicon-based motion microelectrode array (mMEA) and an implantation device to record electrophysiological signals of place cells in CA1, CA3, and DG regions in the hippocampus of ten mice in motion, and investigated the corresponding place fields under distal or local cues in just a few minutes. The mMEA can expand the detection area and greatly lower the motion noise. Finding and recording place cells of moving mice in short-term memory is made possible by the mMEA. The place-related cells were found for the first time. Unlike place cells, which only fire in a particular position of the environment, place-related cells fire in numerous areas of the environment. Furthermore, place cells in the CA1 and CA3 have the most stable place memory for time-preferred single cues, and they fire in concert with place-related cells during short-term memory dynamics, whereas place cells in the DG regions have overlapping and unstable place memory in a multi-cue context. These results demonstrate the consistency of place cells in CA1 and CA3 and reflect their different roles in spatial memory processing during familiarization with new environments. The mMEA provides a platform for studying the place cells of short-term memory.
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Affiliation(s)
- Fan Mo
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, 100190, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Zhaojie Xu
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, 100190, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Gucheng Yang
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, 100190, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Penghui Fan
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, 100190, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yiding Wang
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, 100190, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Botao Lu
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, 100190, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Juntao Liu
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, 100190, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Mixia Wang
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, 100190, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Luyi Jing
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, 100190, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Wei Xu
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, 100190, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Ming Li
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, 100190, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Jin Shan
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, 100190, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yilin Song
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, 100190, China; University of Chinese Academy of Sciences, Beijing, 100049, China.
| | - Xinxia Cai
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, 100190, China; University of Chinese Academy of Sciences, Beijing, 100049, China.
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23
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Xu Z, Mo F, Yang G, Fan P, Wang Y, Lu B, Xie J, Dai Y, Song Y, He E, Xu S, Liu J, Wang M, Cai X. Grid cell remapping under three-dimensional object and social landmarks detected by implantable microelectrode arrays for the medial entorhinal cortex. Microsyst Nanoeng 2022; 8:104. [PMID: 36124081 PMCID: PMC9481550 DOI: 10.1038/s41378-022-00436-5] [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: 05/05/2022] [Revised: 06/29/2022] [Accepted: 07/24/2022] [Indexed: 06/15/2023]
Abstract
Grid cells with stable hexagonal firing patterns in the medial entorhinal cortex (MEC) carry the vital function of serving as a metric for the surrounding environment. Whether this mechanism processes only spatial information or involves nonspatial information remains elusive. Here, we fabricated an MEC-shaped microelectrode array (MEA) to detect the variation in neural spikes and local field potentials of the MEC when rats forage in a square enclosure with a planar, three-dimensional object and social landmarks in sequence. The results showed that grid cells exhibited rate remapping under social conditions in which spike firing fields closer to the social landmark had a higher firing rate. Furthermore, global remapping showed that hexagonal firing patterns were rotated and scaled when the planar landmark was replaced with object and social landmarks. In addition, when grid cells were activated, the local field potentials were dominated by the theta band (5-8 Hz), and spike phase locking was observed at troughs of theta oscillations. Our results suggest the pattern separation mechanism of grid cells in which the spatial firing structure and firing rate respond to spatial and social information, respectively, which may provide new insights into how the brain creates a cognitive map.
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Affiliation(s)
- Zhaojie Xu
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, 100190 China
- University of Chinese Academy of Sciences, Beijing, 100049 China
| | - Fan Mo
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, 100190 China
- University of Chinese Academy of Sciences, Beijing, 100049 China
| | - Gucheng Yang
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, 100190 China
- University of Chinese Academy of Sciences, Beijing, 100049 China
| | - Penghui Fan
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, 100190 China
- University of Chinese Academy of Sciences, Beijing, 100049 China
| | - Yiding Wang
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, 100190 China
- University of Chinese Academy of Sciences, Beijing, 100049 China
| | - Botao Lu
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, 100190 China
- University of Chinese Academy of Sciences, Beijing, 100049 China
| | - Jingyu Xie
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, 100190 China
- University of Chinese Academy of Sciences, Beijing, 100049 China
| | - Yuchuan Dai
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, 100190 China
- University of Chinese Academy of Sciences, Beijing, 100049 China
| | - Yilin Song
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, 100190 China
- University of Chinese Academy of Sciences, Beijing, 100049 China
| | - Enhui He
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, 100190 China
- University of Chinese Academy of Sciences, Beijing, 100049 China
| | - Shihong Xu
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, 100190 China
- University of Chinese Academy of Sciences, Beijing, 100049 China
| | - Juntao Liu
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, 100190 China
- University of Chinese Academy of Sciences, Beijing, 100049 China
| | - Mixia Wang
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, 100190 China
- University of Chinese Academy of Sciences, Beijing, 100049 China
| | - Xinxia Cai
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, 100190 China
- University of Chinese Academy of Sciences, Beijing, 100049 China
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Wang Y, Song Y, Dai Y, Li X, Xie J, Luo J, Yang C, Fan P, Xiao G, Luo Y, Wang Y, Li Y, Cai X. The burst of electrophysiological signals in the suprachiasmatic nucleus of mouse during the arousal detected by microelectrode arrays. Front Bioeng Biotechnol 2022; 10:970726. [PMID: 36110317 PMCID: PMC9468547 DOI: 10.3389/fbioe.2022.970726] [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: 06/16/2022] [Accepted: 08/10/2022] [Indexed: 11/13/2022] Open
Abstract
The neural mechanisms of torpor have essential reference significance for medical methods and long-term manned space. Changes in electrophysiology of suprachiasmatic nucleus (SCN) conduce to revealing the neural mechanisms from the torpor to arousal. Due to the lower physiology state during the torpor, it is a challenge to detect neural activities in vivo on freely behaving mice. Here, we introduced a multichannel microelectrode array (MEA) for real-time detection of local field potential (LFP) and action potential (spike) in the SCN in induced torpor mice. Meanwhile, core body temperature and behaviors of mice were recorded for further analysis. Platinum nanoparticles (PtNPs) and Nafion membrane modified MEA has a lower impedance (16.58 ± 3.93 kΩ) and higher signal-to-noise ratio (S/N = 6.1). We found that from torpor to arousal, the proportion of theta frequency bands of LFPs increased, spike firing rates rapidly increased. These results could all be characteristic information of arousal, supported by the microscopic neural activity promoting arousal in mice. MEA displayed real-time dynamic changes of neuronal activities in the SCN, which was more helpful to analyze and understand neural mechanisms of torpor and arousal. Our study provided a factual basis for the neural state in SCN of induced non-hibernating animals, which was helpful for the application of clinics and spaceflight.
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Affiliation(s)
- Yiding Wang
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, China
- School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing, China
| | - Yilin Song
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, China
- School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing, China
| | - Yuchuan Dai
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, China
- School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing, China
| | - Xinrong Li
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, China
- School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing, China
| | - Jingyu Xie
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, China
- School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing, China
| | - Jinping Luo
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, China
- School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing, China
| | - Chao Yang
- China Astronaut Research and Training Center, Beijing, China
| | - Penghui Fan
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, China
- School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing, China
| | - Guihua Xiao
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, China
- School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing, China
| | - Yan Luo
- Department of Anesthesiology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Ying Wang
- Department of Anesthesiology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
- *Correspondence: Xinxia Cai, ; Yinghui Li, ; Ying Wang,
| | - Yinghui Li
- China Astronaut Research and Training Center, Beijing, China
- *Correspondence: Xinxia Cai, ; Yinghui Li, ; Ying Wang,
| | - Xinxia Cai
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, China
- School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing, China
- *Correspondence: Xinxia Cai, ; Yinghui Li, ; Ying Wang,
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Feng ST, Fan P, Hao S, Bai Q, Wang LX, Jia L. [Factors analysis of worsening renal function in patients with acute right ventricular myocardial infarction during hospitalization]. Zhonghua Yi Xue Za Zhi 2022; 102:2368-2373. [PMID: 35970796 DOI: 10.3760/cma.j.cn112137-20220219-00338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Objective: To analyze the related factors of worsening renal function (WRF) in patients with acute right ventricular myocardial infarction (RVMI) during hospitalization. Methods: A total of 98 patients with acute RVMI admitted to the emergency comprehensive ward of Beijing Anzhen Hospital from August 2011 to January 2020 were enrolled in this cross-sectional study. According to the situation of WRF, the patients were divided into non-WRF group (76 cases) and WRF group (22 cases). WRF was defined as ≥0.3 mg/dL increase in serum creatinine level from baseline on day 6 of hospitalization (if hospital stay<6 days, it was at discharge). Baseline data, intravenous fluid infusion, diuretic and significant positive balance of patients' intake and output volume [any 24 h intakes and outputs ≥1 000 ml or any consecutive 72 h intakes and outputs ≥2 000 ml within 6 d of hospitalization (if hospitalization<6 d, it was from admission to discharge)] were obtained, and the differences of above indicators between the two groups were analyzed. Multiple logistic regression model was used to analyze the related factors of WRF. Results: The ages of patients in WRF group and non-WRF group were 60 (50, 68) and 63 (52, 72) years, and the male proportions were 63.6% (14 cases) and 76.3% (58 cases), respectively, and there was no significant difference (all P>0.05). The proportion of positive balance was 31.8% (7 cases) in WRF group, which was higher than 14.5% (11 cases) in non-WRF group (P=0.034). The rate of loop diuretic use in WRF group was 4.5% (1 case), lower than that in non-WRF group 10.5% (8 cases) (P=0.027). After adjusting for age, sex, baseline estimated glomerular filtration rate (eGFR), preoperative isoproterenol/temporary pacemaker/atropine use, significant positive balance of intake and output volume, and loop diuretic use, it was found that eGFR≥60 ml·min-1·1.73 m-2 and significant positive balance were associated with WRF, the OR (95%CI) were 0.71 (0.62-0.86) and 1.21 (1.02-1.43) (both P<0.05); After eliminating the variable of significant positive balance in the above model, loop diuretic use was found to be a correlation factor for WRF, with an OR (95%CI) of 0.89 (0.72-0.97) (P<0.05). Conclusions: Significant positive balance of intake and output volume during hospitalization in patients with acute RVMI is a risk factor for WRF on day 6 or at discharge. In the presence of a significant positive balance, loop diuretic use is a protective factor for WRF.
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Affiliation(s)
- S T Feng
- Emergency and Critical Care Center, Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart, Lung and Blood Vessel Diseases, Beijing 100029, China
| | - P Fan
- Emergency and Critical Care Center, Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart, Lung and Blood Vessel Diseases, Beijing 100029, China
| | - S Hao
- Coronary Artery Disease Center, Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart, Lung and Blood Vessel Diseases, Beijing 100029, China
| | - Q Bai
- Emergency and Critical Care Center, Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart, Lung and Blood Vessel Diseases, Beijing 100029, China
| | - L X Wang
- Emergency and Critical Care Center, Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart, Lung and Blood Vessel Diseases, Beijing 100029, China
| | - Lixin Jia
- Heart Failure Center, Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart, Lung and Blood Vessel Diseases, Beijing 100029, China
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Jia W, Suo LM, Fan P, Dong T, Li YJ, Ji JM, Xue YF, An CQ, Zhao YX, Zhang JX, Duan J. [Clinical and genetic studies of a family with hereditary angioedema]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2022; 57:980-985. [PMID: 36058666 DOI: 10.3760/cma.j.cn115330-20211209-00789] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Objective: To diagnose a large family of patients with hereditary angioedema, and to study its inheritance pattern and gene locus. Methods: A retrospective analysis was carried out from August 2021 to February 2022 in a proband (female, 48 years old) and 12 family members who underwent medical history collection and laboratory examinations in the Department of Otorhinolaryngology and Head and Neck Surgery, the Second Hospital of Shanxi Medical University. The clinical data of members and non-affected members [including 7 males and 5 females, aged 12-78 (median 24) years old], were drawn a family map while confirming the diagnosis. Whole exome sequencing technology was used to detect the genetic sequence of the proband and to verify its family members to map the genetic pedigree of the mutation. Results: The inheritance pattern of the family was autosomal dominant, and 8 members of the family were diagnosed with hereditary angioedema by laboratory examination, including 7 cases of type I and 1 case of type Ⅱ. Whole exome sequencing analysis was performed on 2 patients with 2 phenotypes, and it was found that they both carried the same pathogenic mutation locus, which was c.890-2A>G. The family members were verified by next-generation sequencing, and it was found that all members of the family who had a history of edema contained this mutation site, while the younger brother of the proband who had no history of edema did not have this mutation. Conclusion: Both type Ⅰ and type Ⅱ phenotypes are present in this hereditary angioedema family, and the mutation of SERPING1 gene c.890-2A>G causes the onset of each patient in this family.
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Affiliation(s)
- W Jia
- Department of Biochemistry and Molecular Biology, Basic Medical College, Shanxi Medical University, Taiyuan 030001, China
| | - L M Suo
- Department of Biochemistry and Molecular Biology, Basic Medical College, Shanxi Medical University, Taiyuan 030001, China Department of Otorhinolaryngology Head Neck Surgery, the Second Hospital, Shanxi Medical University, Key Research Laboratory of Airway Neuroimmunology, Taiyuan 030001, China
| | - P Fan
- Department of Otorhinolaryngology Head Neck Surgery, the Second Hospital, Shanxi Medical University, Key Research Laboratory of Airway Neuroimmunology, Taiyuan 030001, China
| | - T Dong
- Department of Otorhinolaryngology Head Neck Surgery, the Second Hospital, Shanxi Medical University, Key Research Laboratory of Airway Neuroimmunology, Taiyuan 030001, China
| | - Y J Li
- Department of Otorhinolaryngology Head Neck Surgery, the Second Hospital, Shanxi Medical University, Key Research Laboratory of Airway Neuroimmunology, Taiyuan 030001, China
| | - J M Ji
- Department of Otorhinolaryngology Head Neck Surgery, the Second Hospital, Shanxi Medical University, Key Research Laboratory of Airway Neuroimmunology, Taiyuan 030001, China
| | - Y F Xue
- Department of Otorhinolaryngology Head Neck Surgery, the Second Hospital, Shanxi Medical University, Key Research Laboratory of Airway Neuroimmunology, Taiyuan 030001, China
| | - C Q An
- Department of Otorhinolaryngology Head Neck Surgery, the Second Hospital, Shanxi Medical University, Key Research Laboratory of Airway Neuroimmunology, Taiyuan 030001, China
| | - Y X Zhao
- Department of Otorhinolaryngology Head Neck Surgery, the Second Hospital, Shanxi Medical University, Key Research Laboratory of Airway Neuroimmunology, Taiyuan 030001, China
| | - J X Zhang
- Shanxi Guoxin Caregeno Medical Laboratory, Taiyuan 030001, China
| | - Jianxiong Duan
- Shanxi Guoxin Caregeno Medical Laboratory, Taiyuan 030001, China Shanghai Lanwei Medical Laboratory Co., LTD., Shanghai 200335, China
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Fan P, Song Y, Lu B, Wang Y, Dai Y, Xie J, He E, Xu Z, Yang G, Mo F, Liu J, Wang M, Cai X. PtNPs/PEDOT:PSS-Modified Microelectrode Arrays Reveal Electrophysiological Activities of Different Neurons in Medial Amygdala of Mice Under Innate Fear. Front Neurosci 2022; 16:868235. [PMID: 35620664 PMCID: PMC9127061 DOI: 10.3389/fnins.2022.868235] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [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: 02/02/2022] [Accepted: 04/11/2022] [Indexed: 12/19/2022] Open
Abstract
The medial amygdala (MA) plays an important role in the innate fear circuit. However, the electrophysiological mechanism of MA for processing innate fear needs to be further explored. In this study, we fabricated microelectrode arrays (MEAs) with detecting sites arranged to match the location and shape of MA in mice and detected the electrophysiology in freely behaving mice under 2-methyl-2-thiazoline (2MT)-induced fear. The detection performance of MEA is improved by modifying metal nanoparticles and conductive polymers (PtNPs/PEDOT:PSS). After modification, the impedance magnitude and phase of electrodes were decreased to 27.0 ± 2.3 kΩ and −12.30 ± 0.52°, respectively, leading to a signal-to-noise ratio of 10. Its electrochemical stability and mechanical stability were also verified by cyclic voltammetry (CV) sweeping and ultrasonic vibration. MEAs were then implanted into the MA of mice, and the electrophysiology and behavioral characteristics were synchronously recorded and analyzed. The results showed that 2MT induced strong defensive behaviors in mice, accompanied by increases in the average spike firing rate and local field potential (LFP) power of MA neurons. According to principles commonly applied to cortical extracellular recordings, the recorded neurons are divided into two classes based on waveforms. Statistics showed that about 37% of type 1 neurons (putative GABAergic neurons) and 87% of type 2 neurons (putative glutamatergic neurons) were significantly activated under innate fear. At the same time, the firing rate of some activated neurons had a good linear correlation with the freezing rate.
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Affiliation(s)
- Penghui Fan
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, China
- School of Electronic, Electrical and Communication Engineering, University of the Chinese Academy of Sciences, Beijing, China
| | - Yilin Song
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, China
- School of Electronic, Electrical and Communication Engineering, University of the Chinese Academy of Sciences, Beijing, China
- *Correspondence: Yilin Song
| | - Botao Lu
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, China
- School of Electronic, Electrical and Communication Engineering, University of the Chinese Academy of Sciences, Beijing, China
| | - Yiding Wang
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, China
- School of Electronic, Electrical and Communication Engineering, University of the Chinese Academy of Sciences, Beijing, China
| | - Yuchuan Dai
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, China
- School of Electronic, Electrical and Communication Engineering, University of the Chinese Academy of Sciences, Beijing, China
| | - Jingyu Xie
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, China
- School of Electronic, Electrical and Communication Engineering, University of the Chinese Academy of Sciences, Beijing, China
| | - Enhui He
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, China
- School of Electronic, Electrical and Communication Engineering, University of the Chinese Academy of Sciences, Beijing, China
| | - Zhaojie Xu
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, China
- School of Electronic, Electrical and Communication Engineering, University of the Chinese Academy of Sciences, Beijing, China
| | - Gucheng Yang
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, China
- School of Electronic, Electrical and Communication Engineering, University of the Chinese Academy of Sciences, Beijing, China
| | - Fan Mo
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, China
- School of Electronic, Electrical and Communication Engineering, University of the Chinese Academy of Sciences, Beijing, China
| | - Juntao Liu
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, China
- School of Electronic, Electrical and Communication Engineering, University of the Chinese Academy of Sciences, Beijing, China
| | - Mixia Wang
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, China
- School of Electronic, Electrical and Communication Engineering, University of the Chinese Academy of Sciences, Beijing, China
| | - Xinxia Cai
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, China
- School of Electronic, Electrical and Communication Engineering, University of the Chinese Academy of Sciences, Beijing, China
- Xinxia Cai
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Lu B, Fan P, Wang Y, Dai Y, Xie J, Yang G, Mo F, Xu Z, Song Y, Liu J, Cai X. Neuronal Electrophysiological Activities Detection of Defense Behaviors Using an Implantable Microelectrode Array in the Dorsal Periaqueductal Gray. Biosensors (Basel) 2022; 12:bios12040193. [PMID: 35448253 PMCID: PMC9032743 DOI: 10.3390/bios12040193] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2022] [Revised: 03/17/2022] [Accepted: 03/21/2022] [Indexed: 06/07/2023]
Abstract
Defense is the basic survival mechanism of animals when facing dangers. Previous studies have shown that the midbrain periaqueduct gray (PAG) was essential for the production of defense responses. However, the correlation between the endogenous neuronal activities of the dorsal PAG (dPAG) and different defense behaviors was still unclear. In this article, we designed and manufactured microelectrode arrays (MEAs) whose detection sites were arranged to match the shape and position of dPAG in rats, and modified it with platinum-black nanoparticles to improve the detection performance. Subsequently, we successfully recorded the electrophysiological activities of dPAG neurons via designed MEAs in freely behaving rats before and after exposure to the potent analog of predator odor 2-methyl-2-thiazoline (2-MT). Results demonstrated that 2-MT could cause strong innate fear and a series of defensive behaviors, accompanied by the significantly increased average firing rate and local field potential (LFP) power of neurons in dPAG. We also observed that dPAG participated in different defense behaviors with different degrees of activation, which was significantly stronger in the flight stage. Further analysis showed that the neuronal activities of dPAG neurons were earlier than flight, and the intensity of activation was inversely proportional to the distance from predator odor. Overall, our results indicate that dPAG neuronal activities play a crucial role in controlling different types of predator odor-evoked innate fear/defensive behaviors, and provide some guidance for the prediction of defense behavior.
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Affiliation(s)
- Botao Lu
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, China; (B.L.); (P.F.); (Y.W.); (Y.D.); (J.X.); (G.Y.); (F.M.); (Z.X.); (Y.S.)
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Penghui Fan
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, China; (B.L.); (P.F.); (Y.W.); (Y.D.); (J.X.); (G.Y.); (F.M.); (Z.X.); (Y.S.)
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yiding Wang
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, China; (B.L.); (P.F.); (Y.W.); (Y.D.); (J.X.); (G.Y.); (F.M.); (Z.X.); (Y.S.)
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yuchuan Dai
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, China; (B.L.); (P.F.); (Y.W.); (Y.D.); (J.X.); (G.Y.); (F.M.); (Z.X.); (Y.S.)
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jingyu Xie
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, China; (B.L.); (P.F.); (Y.W.); (Y.D.); (J.X.); (G.Y.); (F.M.); (Z.X.); (Y.S.)
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Gucheng Yang
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, China; (B.L.); (P.F.); (Y.W.); (Y.D.); (J.X.); (G.Y.); (F.M.); (Z.X.); (Y.S.)
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Fan Mo
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, China; (B.L.); (P.F.); (Y.W.); (Y.D.); (J.X.); (G.Y.); (F.M.); (Z.X.); (Y.S.)
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zhaojie Xu
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, China; (B.L.); (P.F.); (Y.W.); (Y.D.); (J.X.); (G.Y.); (F.M.); (Z.X.); (Y.S.)
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yilin Song
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, China; (B.L.); (P.F.); (Y.W.); (Y.D.); (J.X.); (G.Y.); (F.M.); (Z.X.); (Y.S.)
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Juntao Liu
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, China; (B.L.); (P.F.); (Y.W.); (Y.D.); (J.X.); (G.Y.); (F.M.); (Z.X.); (Y.S.)
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xinxia Cai
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, China; (B.L.); (P.F.); (Y.W.); (Y.D.); (J.X.); (G.Y.); (F.M.); (Z.X.); (Y.S.)
- University of Chinese Academy of Sciences, Beijing 100049, China
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Arce-Cordero J, Fan P, Monteiro H, Dai X, Jeong K, Faciola A. Effects of choline chloride on the ruminal microbiome at 2 dietary neutral detergent fiber concentrations in continuous culture. J Dairy Sci 2022; 105:4128-4143. [DOI: 10.3168/jds.2021-21591] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Accepted: 01/30/2022] [Indexed: 01/04/2023]
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Zhang M, Peng X, Fan P, Zhou Y, Xiao P. Recent Progress in Preparation and Application of Fibers using Microfluidic Spinning Technology. MACROMOL CHEM PHYS 2022. [DOI: 10.1002/macp.202100451] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Mengfan Zhang
- Key Laboratory of Green Processing and Functional Textiles of New Textile Materials Ministry of Education Wuhan Textile University Wuhan 430073 People's Republic of China
| | - Xiaotong Peng
- Research School of Chemistry Australian National University Canberra 2601 Australia
| | - Penghui Fan
- Key Laboratory of Green Processing and Functional Textiles of New Textile Materials Ministry of Education Wuhan Textile University Wuhan 430073 People's Republic of China
| | - Yingshan Zhou
- Key Laboratory of Green Processing and Functional Textiles of New Textile Materials Ministry of Education Wuhan Textile University Wuhan 430073 People's Republic of China
- College of Materials Science and Engineering Wuhan Textile University Wuhan 430073 People's Republic of China
- Humanwell Healthcare Group Medical Supplies Co. Ltd. Wuhan 430073 People's Republic of China
| | - Pu Xiao
- Research School of Chemistry Australian National University Canberra 2601 Australia
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31
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Wan T, Fan P, Zhang M, Shi K, Chen X, Yang H, Liu X, Xu W, Zhou Y. Multiple Crosslinking Hyaluronic Acid Hydrogels with Improved Strength and 3D Printability. ACS Appl Bio Mater 2022; 5:334-343. [PMID: 35014821 DOI: 10.1021/acsabm.1c01141] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Hyaluronic acid (HA) hydrogel is preferred for biomedicine applications, as it possesses biodegradability, biocompatibility, and cell-regulated capacity as well as high hydration nature similar to the native extracellular matrix. However, HA hydrogel fabricated via a 3D printing technique often faces poor printing properties. In this study, maleiated sodium hyaluronate (MHA) with a high substituted degree of the acrylate group (i.e., 2.27) and thiolated sodium hyaluronate (SHHA) were synthesized. By blending these modified HAs, the MHA/SHHA hydrogels were prepared via pre-crosslinking through thiol-acrylate Michael addition and subsequently covalent crosslinking using thiol-acrylate and acrylate-acrylate photopolymerization mechanisms. Rheological properties, swelling behaviors, and mechanical properties can be modulated by altering the molar ratio of the thiol group and acrylate group. The results showed that the MHA/SHHA hydrogel precursors have rapidly gelling capacity and improved compressive strength. Based on these results, high-resolution hydrogel scaffolds with good structural stability were prepared by extrusion-based 3D printing. This HA hydrogel is cytocompatible and capable of supporting adherence of L929 cells, indicating its great potential for tissue engineering scaffolds.
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Affiliation(s)
- Tingting Wan
- Key Laboratory of Green Processing and Functional Textiles of New Textile Materials, Ministry of Education, Wuhan Textile University, Wuhan 430073, People's Republic of China
| | - Penghui Fan
- Key Laboratory of Green Processing and Functional Textiles of New Textile Materials, Ministry of Education, Wuhan Textile University, Wuhan 430073, People's Republic of China
| | - Mengfan Zhang
- Key Laboratory of Green Processing and Functional Textiles of New Textile Materials, Ministry of Education, Wuhan Textile University, Wuhan 430073, People's Republic of China
| | - Kai Shi
- Key Laboratory of Green Processing and Functional Textiles of New Textile Materials, Ministry of Education, Wuhan Textile University, Wuhan 430073, People's Republic of China
| | - Xiao Chen
- Key Laboratory of Green Processing and Functional Textiles of New Textile Materials, Ministry of Education, Wuhan Textile University, Wuhan 430073, People's Republic of China
| | - Hongjun Yang
- Key Laboratory of Green Processing and Functional Textiles of New Textile Materials, Ministry of Education, Wuhan Textile University, Wuhan 430073, People's Republic of China
| | - Xin Liu
- Key Laboratory of Green Processing and Functional Textiles of New Textile Materials, Ministry of Education, Wuhan Textile University, Wuhan 430073, People's Republic of China
| | - Weilin Xu
- Key Laboratory of Green Processing and Functional Textiles of New Textile Materials, Ministry of Education, Wuhan Textile University, Wuhan 430073, People's Republic of China
| | - Yingshan Zhou
- Key Laboratory of Green Processing and Functional Textiles of New Textile Materials, Ministry of Education, Wuhan Textile University, Wuhan 430073, People's Republic of China.,College of Materials Science and Engineering, Wuhan Textile University, Wuhan 430073, People's Republic of China.,Humanwell Healthcare Group Medical Supplies Company Ltd., Wuhan 430073, People's Republic of China
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Monteiro HF, Lelis ALJ, Fan P, Calvo Agustinho B, Lobo RR, Arce-Cordero JA, Dai X, Jeong KC, Faciola AP. Effects of lactic acid-producing bacteria as direct-fed microbials on the ruminal microbiome. J Dairy Sci 2022; 105:2242-2255. [PMID: 34998552 DOI: 10.3168/jds.2021-21025] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [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: 07/16/2021] [Accepted: 11/03/2021] [Indexed: 01/04/2023]
Abstract
The objective of this study was to evaluate ruminal microbiome changes associated with feeding Lactobacillus plantarum GB-LP1 as direct-fed microbials (DFM) in high-producing dairy cow diets. A dual-flow continuous culture system was used in a replicated 4 × 4 Latin square design. A basal diet was formulated to meet the requirements of a cow producing 45 kg of milk per day (16% crude protein and 28% starch). There were 4 experimental treatments: the basal diet without any DFM (CTRL); a mixture of Lactobacillus acidophilus, 1 × 109 cfu/g, and Propionibacterium freudenreichii, 2 × 109 cfu/g [MLP = 0.01% of diet dry matter (DM)]; and 2 different levels of L. plantarum, 1.35 × 109 cfu/g (L1 = 0.05% and L2 = 0.10% of diet DM). Bacterial samples were collected from the fluid and particulate effluents before feeding and at 2, 4, 6, and 8 h after feeding; a composite of all time points was made for each fermentor within their respective fractionations. Bacterial community composition was analyzed through sequencing the V4 region of the 16S rRNA gene using the Illumina MiSeq platform. Sequenced data were analyzed on DADA2, and statistical analyses were performed in R (RStudio 3.0.1, https://www.r-project.org/) and SAS 9.4 (SAS Institute Inc.); orthogonal contrasts were used to compare treatments. Different than in other fermentation scenarios (e.g., silage or beef cattle high-grain diets), treatments did not affect pH or lactic acid concentration. Effects were mainly from overall DFM inclusion, and they were mostly observed in the fluid phase. The relative abundance of the phylum Firmicutes, family Lachnospiraceae, and 6 genera decreased with DFM inclusion, with emphasis on Butyrivibrio_2, Saccharofermentans, and Ruminococcus_1 that are fibrolytic and may display peptidase activity during fermentation. Lachnospiraceae_AC2044_group and Lachnospiraceae_XPB1014_group also decreased in the fluid phase, and their relative abundances were positively correlated with NH3-N daily outflow from the fermentors. Specific effects of MLP and L. plantarum were mostly in specific bacteria associated with proteolytic and fibrolytic functions in the rumen. These findings help to explain why, in the previous results from this study, DFM inclusion decreased NH3-N concentration without altering pH and lactic acid concentration.
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Affiliation(s)
- H F Monteiro
- Department of Population Health and Reproduction, School of Veterinary Medicine, University of California, Davis 95616; Department of Animal Sciences, University of Florida, Gainesville 32611
| | - A L J Lelis
- Department of Animal Sciences, University of Florida, Gainesville 32611; Faculdade de Medicina Veterinária e Zootecnia, Universidade Estadual Paulista Júlio de Mesquita Filho, Botucatu, Brazil, 18618-681
| | - P Fan
- Department of Animal Sciences, University of Florida, Gainesville 32611
| | - B Calvo Agustinho
- Department of Animal Sciences, University of Florida, Gainesville 32611
| | - R R Lobo
- Department of Animal Sciences, University of Florida, Gainesville 32611
| | - J A Arce-Cordero
- Department of Animal Sciences, University of Florida, Gainesville 32611
| | - X Dai
- Department of Animal Sciences, University of Florida, Gainesville 32611; Department of Clinical Science Services, Royal Veterinary College, London, UK, NW1 0TU
| | - K C Jeong
- Department of Animal Sciences, University of Florida, Gainesville 32611; Department of Animal, Veterinary, and Food Sciences, University of Idaho, Moscow 83844
| | - A P Faciola
- Department of Animal Sciences, University of Florida, Gainesville 32611.
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33
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Shen M, Qing YF, Shi XF, Fan P, Zhang W, Li CF, Zhao Y. [Recommendations of diagnosis of autoinflammatory diseases in China]. Zhonghua Nei Ke Za Zhi 2021; 60:1129-1138. [PMID: 34856685 DOI: 10.3760/cma.j.cn112138-20210611-00415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Autoinflammatory diseases (AIDs) are a group of disorders characterized by dysfunction of innate immunity which caused by gene mutations leading to coded proteins changes, finally causing uncontrolled systemic inflammation. AIDs are a group of rare rheumatic and inflammatory diseases. Here, Chinese Rheumatology Association summarized manifestations of the main AIDs, and to standardize the methods for diagnosis of AIDs.
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Affiliation(s)
- M Shen
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, National Clinical Research Center for Dermatologic and Immunologic Diseases, Ministry of Science & Technology,State Key Laboratory of Complex Severe and Rare Diseases, Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing 100730, China
| | - Y F Qing
- Department of Rheumatology and Immunology, Affiliated Hospital of North Sichuan Medical College, Institute of Rheumatism and Immunology, North Sichuan Medical College, Nanchong Sichuan 637000, China
| | - X F Shi
- The First Affiliated Hospital, and College of Clinical Medicine of Henan University of Science and Technology, Luoyang 471003, China
| | - P Fan
- Department of Rheumatology and Immunology, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
| | - W Zhang
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, National Clinical Research Center for Dermatologic and Immunologic Diseases, Ministry of Science & Technology,State Key Laboratory of Complex Severe and Rare Diseases, Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing 100730, China
| | - C F Li
- National Children's Medical Center, Department of Rheumatology, Beijing Children Hospital Affiliated to Capital Medical University, Beijing 100045, China
| | - Y Zhao
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, National Clinical Research Center for Dermatologic and Immunologic Diseases, Ministry of Science & Technology,State Key Laboratory of Complex Severe and Rare Diseases, Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing 100730, China
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He E, Xu S, Dai Y, Wang Y, Xiao G, Xie J, Xu S, Fan P, Mo F, Wang M, Song Y, Yin H, Li Y, Wang Y, Cai X. SWCNTs/PEDOT:PSS-Modified Microelectrode Arrays for Dual-Mode Detection of Electrophysiological Signals and Dopamine Concentration in the Striatum under Isoflurane Anesthesia. ACS Sens 2021; 6:3377-3386. [PMID: 34410704 DOI: 10.1021/acssensors.1c01241] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Accurate detection of the degree of isoflurane anesthesia during a surgery is important to avoid the risk of overdose isoflurane anesthesia timely. To address this challenge, a four-shank implantable microelectrode array (MEA) was fabricated for the synchronous real-time detection of dual-mode signals [electrophysiological signal and dopamine (DA) concentration] in rat striatum. The SWCNTs/PEDOT:PSS nanocomposites were modified onto the MEAs, which significantly improved the electrical and electrochemical performances of the MEAs. The electrical performance of the modified MEAs with a low impedance (16.20 ± 1.68 kΩ) and a small phase delay (-27.76 ± 0.82°) enabled the MEAs to detect spike firing with a high signal-to-noise ratio (> 3). The electrochemical performance of the modified MEAs with a low oxidation potential (160 mV), a low detection limit (10 nM), high sensitivity (217 pA/μM), and a wide linear range (10 nM-72 μM) met the specific requirements for DA detection in vivo. The anesthetic effect of isoflurane was mediated by inhibiting the spike firing of D2_SPNs (spiny projection neurons expressing the D2-type DA receptor) and the broadband oscillation rhythm of the local field potential (LFP). Therefore, the spike firing rate of D2_SPNs and the power of LFP could reflect the degree of isoflurane anesthesia together. During the isoflurane anesthesia-induced death procedure, we found that electrophysiological activities and DA release were strongly inhibited, and changes in the DA concentration provided more details regarding this procedure. The dual-mode recording MEA provided a detection method for the degree of isoflurane anesthesia and a prediction method for fatal overdose isoflurane anesthesia.
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Affiliation(s)
- Enhui He
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Shengwei Xu
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yuchuan Dai
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yiding Wang
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Guihua Xiao
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jingyu Xie
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Shihong Xu
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Penghui Fan
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Fan Mo
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Mixia Wang
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yilin Song
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Huabing Yin
- Division of Biomedical Engineering, James Watt School of Engineering, University of Glasgow, Oakfield Avenue, Glasgow G12 8LT, United Kingdom
| | - Yinghui Li
- State Key Laboratory of Space Medicine Fundamentals and Application, China Astronaut Research and Training Center, Beijing 100094, China
| | - Ying Wang
- Department of Anesthesiology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, 197 Ruijin 2nd Road, Shanghai 200025, China
| | - Xinxia Cai
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
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Junker J, Petrovan SO, Arroyo-Rodríguez V, Boonratana R, Byler D, Chapman CA, Chetry D, Cheyne SM, Cornejo FM, Cortés-Ortiz L, Cowlishaw G, Christie AP, Crockford C, de la Torre S, de Melo FR, Fan P, Grueter CC, Guzmán-Caro DC, Heymann EW, Herbinger I, Hoang MD, Horwich RH, Humle T, Ikemeh RA, Imong IS, Jerusalinsky L, Johnson SE, Kappeler PM, Kierulff MCM, Koné I, Kormos R, LE KQ, Li B, Marshall AJ, Meijaard E, Mittermeier RA, Muroyama Y, Neugebauer E, Orth L, Palacios E, Papworth SK, Plumptre AJ, Rawson BM, Refisch J, Ratsimbazafy J, Roos C, Setchell JM, Smith RK, Sop T, Schwitzer C, Slater K, Strum SC, Sutherland WJ, Talebi M, Wallis J, Wich S, Williamson EA, Wittig RM, Kühl HS. Corrigendum: A Severe Lack of Evidence Limits Effective Conservation of the World's Primates. Bioscience 2021; 71:105. [PMID: 33442330 PMCID: PMC7791360 DOI: 10.1093/biosci/biaa143] [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] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Affiliation(s)
| | - Silviu O Petrovan
- Department of Zoology, University of Cambridge, Cambridge, United Kingdom
| | | | | | | | - Colin A Chapman
- Department of Anthropology, McGill University, Montreal, Quebec, Canada; with the School of Life Sciences, University of KwaZulu-Natal, Scottsville, Pietermaritzburg, South Africa; and with the Shaanxi Key Laboratory for Animal Conservation, Northwest University, in Xi'an, China
| | | | - Susan M Cheyne
- Department of Social Sciences, Oxford Brookes University, Oxford, United Kingdom
| | | | - Liliana Cortés-Ortiz
- Department of Ecology and Evolutionary Biology, University of Michigan, Ann Arbor, Michigan
| | - Guy Cowlishaw
- Zoological Society of London, London, United Kingdom
| | - Alec P Christie
- Department of Zoology, University of Cambridge, Cambridge, United Kingdom
| | | | - Stella de la Torre
- Universidad San Francisco de Quito's Colegio de Ciencias Biológicas y Ambientales Quito, Ecuador
| | - Fabiano R de Melo
- Department of Engenharia Florestal, Federal University of Viçosa, Viçosa, Brazil
| | - P Fan
- Sun Yat-Sen University, Guangzhou, China
| | - Cyril C Grueter
- University of Western Australia, Crawley, Western Australia, Australia
| | | | - Eckhard W Heymann
- Deutsches Primatenzentrum, Leibniz-Institut für Primatenforschung, Göttingen, Germany
| | | | - Minh D Hoang
- Southern Institute of Ecology, Hochiminh City, Vietnam
| | | | - Tatyana Humle
- Durrell Institute of Conservation and Ecology, School of Anthropology and Conservation, University of Kent, in Kent, United Kingdom
| | - Rachel A Ikemeh
- SW/Niger Delta Forest Project, part of the Foundation for Sustainability of Ecosystem, Wildlife, and Climate, Abuja, Nigeria
| | | | - Leandro Jerusalinsky
- Centro Nacional de Pesquisa e Conservação de Primatas Brasileiros, Instituto Chico Mendes de Conservação da Biodiversidade. In João Pessoa, Brazil
| | - Steig E Johnson
- Department of Anthropology and Archaeology, University of Calgary, Calgary, Alberta, Canada
| | - Peter M Kappeler
- Department of Sociobiology/Anthropology, Faculty of Biology and Psychology, Georg-August Universität, Göttingen, Germany
| | - Maria Cecília M Kierulff
- Instituto Nacional da Mata Atlântica, Espírito Santo, Brazil, and with the Instituto Pri-Matas, in Minas Gerais, Brazil
| | - Inza Koné
- Department of Integrative Biology, University of California, Berkeley
| | | | - Khac Q LE
- Freelance wildlife consultant Hanoi, Vietnam
| | - Baoguo Li
- Shaanxi Key Laboratory for Animal Conservation, College of Life Sciences, Northwest University, Xi'an, China
| | - Andrew J Marshall
- Department of Anthropology, Department of Ecology and Evolutionary Biology in the Program in the Environment and the School of Environment and Sustainability, Universit of Michigan, Ann Arbor, Michigan
| | - Erik Meijaard
- University of Queensland, Brisbane, Queensland, Australia, and with Borneo Futures, in Bandar Seri Begawan, Brunei
| | | | - Yasuyuki Muroyama
- Natural Science Laboratory, Faculty of Business Administration, Toyo University, in Tokyo, Japan
| | - Eleonora Neugebauer
- Universität Leipzig, Dekanat der Fakultät für Lebenswissenschaften, Leipzig, Germany
| | - Lisa Orth
- Independent researcher Leipzig, Germany
| | | | | | | | - Ben M Rawson
- World Wide Fund for Wildlife Vietnam, Hanoi, Vietnam
| | - Johannes Refisch
- Great Apes Survival Partnership, United Nations Environment Programme, Nairobi, Kenya
| | - Jonah Ratsimbazafy
- Groupe d'étude et de recherche sur les primates, Antananarivo, Madagascar
| | - Christian Roos
- Deutsches Primatenzentrum, Leibniz-Institut für Primatenforschung, Göttingen, Germany
| | - Joanna M Setchell
- Department of Anthropology, Durham University, Durham, United Kingdom
| | - Rebecca K Smith
- Department of Zoology, University of Cambridge, Cambridge, United Kingdom
| | - Tene Sop
- Department of Primatology, Leipzig, Germany
| | | | - Kathy Slater
- Operation Wallacea, Lincolnshire, United Kingdom
| | - Shirley C Strum
- University of California San Diego, La Jolla, California, and with the Uaso Ngiro Baboon Project, Nairobi, Kenya
| | | | - Maurício Talebi
- Departamento de Cíências Ambientais, Programa Análise Ambiental Integrada, Universidade Federal de São Paulo, Sao Paulo, Brazil
| | - Janette Wallis
- Department of Environmental Studies, University of Oklahoma, Norman, Oklahoma
| | - Serge Wich
- School of Natural Sciences and Psychology, Liverpool John Moores University, Liverpool, United Kingdom
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Lin Y, Cheng L, Liu Y, Wang Y, Wang Q, Wang HL, Shi G, Li JS, Wang QN, Yang QM, Chen S, Su XL, Yang Y, Jiang M, Hu X, Fan P, Fang C, Zhou ZG, Dai L, Deng HX. Intestinal epithelium-derived BATF3 promotes colitis-associated colon cancer through facilitating CXCL5-mediated neutrophils recruitment. Mucosal Immunol 2021; 14:187-198. [PMID: 32467604 DOI: 10.1038/s41385-020-0297-3] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Revised: 04/24/2020] [Accepted: 05/01/2020] [Indexed: 02/05/2023]
Abstract
Inflammation is a critical player in the development and progression of colon cancer. Basic leucine zipper transcription factor ATF-like 3 (BATF3) plays an important role in infection and tumor immunity through regulating the development of conventional type 1 dendritic cells (cDC1s). However, the function of BATF3 in colitis and colitis-associated colon cancer (CAC) remains unclear. Here, BATF3 wild-type and knockout mice were used to construct an AOM/DSS-induced CAC model. In addition, DSS-induced chronic colitis, bone marrow cross-transfusion (BMT), neutrophil knockout, and other animal models were used for in-depth research. We found that BATF3 deficiency in intestinal epithelial cells rather than in cDC1s inhibited CAC, which was depended on inflammatory stimulation. Mechanistically, BATF3 directly promoted transcription of CXCL5 by forming a heterodimer with JunD, and accelerated the recruitment of neutrophils through the CXCL5-CXCR2 axis, ultimately increasing the occurrence and development of CAC. Tissue microarray and TCGA data also indicated that high expression of BATF3 was positively correlated with poor prognosis of colorectal cancer and other inflammation-related tumors. In summary, our results demonstrate that intestinal epithelial-derived BATF3 relies on inflammatory stimulation to promote CAC, and BATF3 is expected to be a novel diagnostic indicator for colitis and CAC.
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Affiliation(s)
- Y Lin
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center for Biotherapy, Chengdu, 610041, Sichuan, China
| | - L Cheng
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center for Biotherapy, Chengdu, 610041, Sichuan, China
| | - Y Liu
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center for Biotherapy, Chengdu, 610041, Sichuan, China
| | - Y Wang
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center for Biotherapy, Chengdu, 610041, Sichuan, China
| | - Q Wang
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center for Biotherapy, Chengdu, 610041, Sichuan, China
| | - H L Wang
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center for Biotherapy, Chengdu, 610041, Sichuan, China
| | - G Shi
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center for Biotherapy, Chengdu, 610041, Sichuan, China
| | - J S Li
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center for Biotherapy, Chengdu, 610041, Sichuan, China
| | - Q N Wang
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center for Biotherapy, Chengdu, 610041, Sichuan, China
| | - Q M Yang
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center for Biotherapy, Chengdu, 610041, Sichuan, China
| | - S Chen
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center for Biotherapy, Chengdu, 610041, Sichuan, China
| | - X L Su
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center for Biotherapy, Chengdu, 610041, Sichuan, China
| | - Y Yang
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center for Biotherapy, Chengdu, 610041, Sichuan, China
| | - M Jiang
- Department of Medical Oncology, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital of Sichuan University, Chengdu, Sichuan, China.
| | - X Hu
- West China Biobanks, Department of Clinical Research Management and West China-Liverpool Biomedical Research Centre, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - P Fan
- West China Biobanks, Department of Clinical Research Management and West China-Liverpool Biomedical Research Centre, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - C Fang
- Department of Gastrointestinal Surgery, West China Hospital and State Key Laboratory of Biotherapy, Sichuan University, Chengdu, Sichuan, China
| | - Z G Zhou
- Department of Gastrointestinal Surgery, West China Hospital and State Key Laboratory of Biotherapy, Sichuan University, Chengdu, Sichuan, China
| | - L Dai
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center for Biotherapy, Chengdu, 610041, Sichuan, China.
| | - H X Deng
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center for Biotherapy, Chengdu, 610041, Sichuan, China.
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Xu Y, Wang T, Fan P, Wang Y, Lemus O, Vulpe H, Adamovics J, Sisti M, Wuu C. Dosimetric Evaluation of the Tissue Inhomogeneity effect in Gamma Knife Treatment Planning. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.684] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Fan P, Zhang D, Yang K, Zhang Y, Lu Y, Luo F, Tian T, Liu Y, Zhou X. Clinical genetics involved in monogenic forms of hypertension in Chinese patients with early-onset hypertension and hypokalemia. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.2806] [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
Background
Monogenic forms of hypertension are regarded as a group of conditions characterized by early-onset and resistant hypertension, electrolyte imbalance. These alterations stem from single mutations that lead to maladaptive excretion of potassium, and consequent hypokalemia.
Purpose
This study aimed to analyze genes involved in monogenic forms of hypertension and clinical features in Chinese patients with early-onset hypertension and hypokalemia.
Methods
A total of 129 unrelated Chinese patients (89 male and 40 females; average onset age of hypertension 25±5 years) with early-onset hypertension and hypokalemia. Patients with hypertension secondary to common causes, including renal disease and renovascular disease, aortic diseases, and obstructive sleep apnea were excluded. Genomic DNA were extracted from peripheral blood leucocytes of each subject. Using next-generation sequencing, we targeted and sequenced 42 genes related to monogenic forms of hypertension. All rare variants were confirmed by Sanger sequencing.
Results
We detected 63 rare variants in 23 genes in 52 patients (40.3%). The variants in genes associated with pseudohypoaldosteronism, familial aldosteronism, pheochromocytoma or paraganglioma, and pseudohyperaldosteronism accounted for 22.2%, 23.8%, 20.6% and 11.1% respectively. Patients with rare variants had a significantly lower serum potassium (2.94±0.21 vs. 3.30±0.24 mmol/L, P<0.001) and family history of hypertension (67.3% vs. 31.2%, P<0.001). During 24±7.9 months of follow-up, several complication occurred, including stroke in 22 patients, coronary heart disease in 10, and chronic renal failure in 10. Factors associated with stroke were carrying rare variants (HR=4.371, 95% CI: 1.709–11.181, P=0.002), systolic blood pressure (HR=1.015, 95% CI: 1.004–1.037, P=0.015).
Conclusions
This study revealed a wide genetic spectrum in Chinese patients with early-onset hypertension and hypokalemia. Genetic testing helps to differentiate the diagnosis of monogenic forms of hypertension in patients with hypertension and hypokalemia, and evaluates prognosis. Those patients carrying rare variants presented with a high risk of severe complications, stroke and needed close follow-up.
Figure 1
Funding Acknowledgement
Type of funding source: Public grant(s) – National budget only. Main funding source(s): CAMS Innovation Fund for Medical Sciences; the National Key Research and Development Program of China
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Affiliation(s)
- P Fan
- Fuwai Hospital, CAMS and PUMC, Beijing, China
| | - D Zhang
- Fuwai Hospital, CAMS and PUMC, Beijing, China
| | - K.Q Yang
- Fuwai Hospital, CAMS and PUMC, Beijing, China
| | - Y Zhang
- Fuwai Hospital, CAMS and PUMC, Beijing, China
| | - Y.T Lu
- Fuwai Hospital, CAMS and PUMC, Beijing, China
| | - F Luo
- Fuwai Hospital, CAMS and PUMC, Beijing, China
| | - T Tian
- Fuwai Hospital, CAMS and PUMC, Beijing, China
| | - Y.X Liu
- Fuwai Hospital, CAMS and PUMC, Beijing, China
| | - X.L Zhou
- Fuwai Hospital, CAMS and PUMC, Beijing, China
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Fan P, Zhang D, Yang K, Zhang Y, Lu Y, Luo F, Tian T, Liu Y, Zhou X. Apparent mineralocorticoid excess caused by novel compound heterozygous mutations in HSD11B2. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.2718] [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
Apparent mineralocorticoid excess (AME) is a rare autosomal recessive genetic disorder caused by a mutation in the 11β-hydroxysteroid dehydrogenase type 2 gene (HSD11B2). AME is characterized by early-onset and severe hypertension, hypokalemia, and metabolic alkalosis.
Purpose
This study aimed to study the molecular genetics, clinical presentation, biochemical parameters, and treatment in the proband with AME from a non-consanguineous Chinese family.
Methods
Genomic DNA was recovered from peripheral blood leukocytes from nine subjects in this family. Next-generation sequencing and Sanger sequencing were performed to identify the HSD11B2 variants. In silico and genotype-phenotype correlations analyses were used to predict pathogenicity of candidate variants. A tailored therapy was performed for identified mutations carriers.
Results
Genetic analysis identified novel compound heterozygous HSD11B2 mutations (c.343-348del/c.1099-1101del) in the proband. In silico analysis predicted these HSD11B2 mutations were deleterious. The structural change and predicted consequences owing to the compound mutations have been modeled. The same compound mutations were not found in any other family members, 100 hypertensives, or 100 healthy controls. The proband had typical manifestations of AME, including early-onset and severe hypertension, hypokalemia, low plasma aldosterone concentration, hypokalemic alkalosis and nephrolithiasis. The probands' blood pressure and serum potassium level had returned to normal after treatmennt with dexamethasone (1.5 mg/day) and spirolactone (40 mg/day) for three months.
Conclusions
We conclude that this novel compound mutations are responsible for AME in the proband. These genetic and clinical data expand the genetic spectrum of HSD11B2 and demonstrate the pathogenic effects of identified mutations and genotype-phenotype correlations. It is emphasized that genetic diagnosis and specific treatment play an important role in patients with AME.
Figure 1
Funding Acknowledgement
Type of funding source: Public grant(s) – National budget only. Main funding source(s): National Key Research and Development Program of China; PUMC Youth Fund and the Fundamental Research Funds for the Central Universities
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Affiliation(s)
- P Fan
- Fuwai Hospital, CAMS and PUMC, Beijing, China
| | - D Zhang
- Fuwai Hospital, CAMS and PUMC, Beijing, China
| | - K.Q Yang
- Fuwai Hospital, CAMS and PUMC, Beijing, China
| | - Y Zhang
- Fuwai Hospital, CAMS and PUMC, Beijing, China
| | - Y.T Lu
- Fuwai Hospital, CAMS and PUMC, Beijing, China
| | - F Luo
- Fuwai Hospital, CAMS and PUMC, Beijing, China
| | - T Tian
- Fuwai Hospital, CAMS and PUMC, Beijing, China
| | - Y.X Liu
- Fuwai Hospital, CAMS and PUMC, Beijing, China
| | - X.L Zhou
- Fuwai Hospital, CAMS and PUMC, Beijing, China
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40
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Junker J, Petrovan SO, Arroyo-RodrÍguez V, Boonratana R, Byler D, Chapman CA, Chetry D, Cheyne SM, Cornejo FM, CortÉs-Ortiz L, Cowlishaw G, Christie AP, Crockford C, Torre SDL, De Melo FR, Fan P, Grueter CC, GuzmÁn-Caro DC, Heymann EW, Herbinger I, Hoang MD, Horwich RH, Humle T, Ikemeh RA, Imong IS, Jerusalinsky L, Johnson SE, Kappeler PM, Kierulff MCM, KonÉ I, Kormos R, Le KQ, Li B, Marshall AJ, Meijaard E, Mittermeier RA, Muroyama Y, Neugebauer E, Orth L, Palacios E, Papworth SK, Plumptre AJ, Rawson BM, Refisch J, Ratsimbazafy J, Roos C, Setchell JM, Smith RK, Sop T, Schwitzer C, Slater K, Strum SC, Sutherland WJ, Talebi M, Wallis J, Wich S, Williamson EA, Wittig RM, KÜhl HS. A Severe Lack of Evidence Limits Effective Conservation of the World's Primates. Bioscience 2020; 70:794-803. [PMID: 32973409 PMCID: PMC7498340 DOI: 10.1093/biosci/biaa082] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
Threats to biodiversity are well documented. However, to effectively conserve species and their habitats, we need to know which conservation interventions do (or do not) work. Evidence-based conservation evaluates interventions within a scientific framework. The Conservation Evidence project has summarized thousands of studies testing conservation interventions and compiled these as synopses for various habitats and taxa. In the present article, we analyzed the interventions assessed in the primate synopsis and compared these with other taxa. We found that despite intensive efforts to study primates and the extensive threats they face, less than 1% of primate studies evaluated conservation effectiveness. The studies often lacked quantitative data, failed to undertake postimplementation monitoring of populations or individuals, or implemented several interventions at once. Furthermore, the studies were biased toward specific taxa, geographic regions, and interventions. We describe barriers for testing primate conservation interventions and propose actions to improve the conservation evidence base to protect this endangered and globally important taxon.
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Affiliation(s)
- Jessica Junker
- German Centre for Integrative Biodiversity Research, Leipzig, Germany and with the Max Planck Institute for Evolutionary Anthropology, formerly the Department of Primatology, in Leipzig, Germany
| | - Silviu O Petrovan
- Conservation Science Group, Department of Zoology, University of Cambridge, Cambridge, United Kingdom
| | - Victor Arroyo-RodrÍguez
- Instituto de Investigaciones en Ecosistemas y Sustentabilidad, Universidad Nacional Autónoma de México, Morelia, Mexico
| | | | | | - Colin A Chapman
- Department of Anthropology, McGill University, Montreal, Quebec, Canada; with the School of Life Sciences, University of KwaZulu-Natal, Scottsville, Pietermaritzburg, South Africa; and with the Shaanxi Key Laboratory for Animal Conservation, at Northwest University, in Xi'an, China
| | | | - Susan M Cheyne
- Borneo Nature Foundation, Palangka Raya, Central Kalimantan, Indonesia, and with the Department of Social Sciences, Oxford Brookes University, Oxford, United Kingdom
| | | | - Liliana CortÉs-Ortiz
- Department of Ecology and Evolutionary Biology, University of Michigan, Ann Arbor, Michigan
| | - Guy Cowlishaw
- Institute of Zoology, Zoological Society of London, London, in the United Kingdom
| | - Alec P Christie
- Conservation Science Group, Department of Zoology, University of Cambridge, Cambridge, United Kingdom
| | - Catherine Crockford
- Tai Chimpanzee Project, Centre Suisse des Recherche Scientifique, Abidjan, Cote d'Ivoire
| | - Stella De La Torre
- Universidad San Francisco de Quito's Colegio de Ciencias Biológicas y Ambientales in Quito, Ecuador
| | - Fabiano R De Melo
- Department of Engenharia Florestal, Federal University of Viçosa, Viçosa, Brazil
| | - P Fan
- School of Life Sciences, Sun Yat-Sen University, Guangzhou, China
| | - Cyril C Grueter
- School of Human Sciences and with the School of Biological Sciences, University of Western Australia, Crawley, Western Australia, Australia
| | | | - Eckhard W Heymann
- Deutsches Primatenzentrum, Leibniz-Institut für Primatenforschung, Göttingen, Germany
| | | | - Minh D Hoang
- Southern Institute of Ecology, Hochiminh City, Vietnam
| | | | - Tatyana Humle
- Durrell Institute of Conservation and Ecology, School of Anthropology and Conservation, University of Kent, Kent, United Kingdom
| | - Rachel A Ikemeh
- SW/Niger Delta Forest Project, part of the Foundation for Sustainability of Ecosystem, Wildlife, and Climate, Abuja, Nigeria
| | | | - Leandro Jerusalinsky
- Centro Nacional de Pesquisa e Conservação de Primatas Brasileiros, in the Instituto Chico Mendes de Conservação da Biodiversidade. In João Pessoa, Brazil
| | - Steig E Johnson
- Department of Anthropology and Archaeology, University of Calgary, Calgary, Alberta, Canada
| | - Peter M Kappeler
- Deutsches Primatenzentrum, Leibniz-Institut für Primatenforschung, Göttingen, Germany, and with the Department of Sociobiology/Anthropology, Faculty of Biology and Psychology, at Georg-August Universität, in Göttingen, Germany
| | - Maria CecÍlia M Kierulff
- Instituto Nacional da Mata Atlântica, in Espírito Santo, Brazil, and with the Instituto Pri-Matas, Minas Gerais, Brazil
| | - Inza KonÉ
- Centre Suisse de Recherches Scientifiques, Abidjan, Côte d'Ivoire. Rebecca Kormos is affiliated with the Department of Integrative Biology, University of California, Berkeley
| | - Rebecca Kormos
- German Centre for Integrative Biodiversity Research, Leipzig, Germany and with the Max Planck Institute for Evolutionary Anthropology, formerly the Department of Primatology, in Leipzig, Germany
| | - Khac Q Le
- Freelance wildlife consultant, Hanoi, Vietnam
| | - Baoguo Li
- Shaanxi Key Laboratory for Animal Conservation, College of Life Sciences, Northwest University, Xi'an, China
| | - Andrew J Marshall
- Department of Anthropology and the Department of Ecology and Evolutionary Biology in the Program in the Environment and the School of Environment and Sustainability, Universit of Michigan in Ann Arbor, Michigan
| | - Erik Meijaard
- Center of Excellence for Environmental Decisions, University of Queensland, Brisbane, Queensland, Australia, and with Borneo Futures, Bandar Seri Begawan, Brunei
| | | | - Yasuyuki Muroyama
- Natural Science Laboratory, Faculty of Business Administration, Toyo University, Tokyo, Japan
| | - Eleonora Neugebauer
- Universität Leipzig, Dekanat der Fakultät für Lebenswissenschaften, Leipzig, Germany
| | - Lisa Orth
- Independent researcher, Leipzig, Germany
| | | | | | - Andrew J Plumptre
- Department of Anthropology and the Department of Ecology and Evolutionary Biology in the Program in the Environment and the School of Environment and Sustainability, Universit of Michigan in Ann Arbor, Michigan
| | - Ben M Rawson
- World Wide Fund for Wildlife Vietnam, Hanoi, Vietnam
| | - Johannes Refisch
- Great Apes Survival Partnership, United Nations Environment Programme, Nairobi, Kenya
| | - Jonah Ratsimbazafy
- Groupe d'étude et de recherche sur les primates, Antananarivo, Madagascar
| | - Christian Roos
- Deutsches Primatenzentrum, Leibniz-Institut für Primatenforschung, Göttingen, Germany
| | - Joanna M Setchell
- Department of Anthropology, Durham University, Durham, United Kingdom
| | - Rebecca K Smith
- Conservation Science Group, Department of Zoology, University of Cambridge, Cambridge, United Kingdom
| | - Tene Sop
- Max Planck Institute for Evolutionary Anthropology, formerly the Department of Primatology, Leipzig, Germany
| | | | - Kerry Slater
- Operation Wallacea, Lincolnshire, United Kingdom
| | - Shirley C Strum
- University of California San Diego, La Jolla, California, and with the Uaso Ngiro Baboon Project, Nairobi, Kenya
| | - William J Sutherland
- Conservation Science Group, Department of Zoology, University of Cambridge, Cambridge, United Kingdom
| | - MaurÍcio Talebi
- Departamento de Cíências Ambientais and the Programa Análise Ambiental Integrada, Universidade Federal de São Paulo, Sao Paulo, Brazil
| | - Janette Wallis
- Department of Environmental Studies, University of Oklahoma, Norman, Oklahoma
| | - Serge Wich
- School of Natural Sciences and Psychology, Liverpool John Moores University, Liverpool, United Kingdom
| | | | - Roman M Wittig
- Tai Chimpanzee Project, Centre Suisse des Recherche Scientifique, Abidjan, Cote d'Ivoire
| | - Hjalmar S KÜhl
- German Centre for Integrative Biodiversity Research, Leipzig, Germany and with the Max Planck Institute for Evolutionary Anthropology, formerly the Department of Primatology, in Leipzig, Germany
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Fan H, Zhang S, Li N, Fan P, Hu X, Liang K, Cheng X, Wu Y. Stable expression ratios of five pyroptosis-inducing cytokines in the spleen and thymus of mice showed potential immune regulation at the organ level. Lupus 2020; 29:290-302. [PMID: 32041506 DOI: 10.1177/0961203320903802] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
BACKGROUND The immune system is one of the most complex regulatory systems in the body and is essential for the maintenance of homeostasis. Despite recent breakthroughs in immunology, the regulation of the immune system and the etiology of autoimmune diseases such as lupus remain unclear. Systemic lupus erythematosus is a systemic autoimmune disease with abnormally and inconsistently expressed pro-inflammatory cytokines. Pyroptosis is a pro-inflammatory form of programmed cell death that is associated with systemic lupus erythematosus. The thymus and spleen are important immune organs involved in systemic lupus erythematosus. Therefore, this study investigated the difference in expression of pyroptosis-inducing pro-inflammatory cytokines between the spleen and thymus in lupus model mice and in control mice, to describe immune regulation at the organ level. OBJECTIVE To investigate differences in the expression of pyroptosis-inducing cytokines in the spleen and thymus and to explore immune regulatory networks at the organ level. METHODS Two groups of lupus mice and two groups of control mice were utilized for this study. Using the thymus and spleen of experimental animals, mRNA expression levels of five pyroptosis-inducing cytokines (interleukin 1β, interleukin 18, NLRP3, caspase-1 and TNF-α) were determined via quantitative polymerase chain reaction. In addition, tissue distribution of these cytokines was investigated via immunohistochemistry. RESULTS All five pyroptosis-inducing inflammatory cytokines showed higher expression in the spleen than in the thymus (p < 0.05). Moreover, the spleen/thymus expression ratios of all five pyroptosis-inducing cytokines were not statistically different between the four experimental groups. Expression of all five cytokines exhibited a stable ratio (spleen/thymus ratios). This distinctive stable spleen/thymus ratio was consistent in all four experimental groups. The stable spleen/thymus ratios of the five inflammatory cytokines were as follows: interleukin 1β (2.02 ± 0.9), interleukin 18 (2.07 ± 1.06), caspase-1 (1.93 ± 0.66), NLRP3 (3.14 ± 1.61) and TNF-α (3.16 ± 1.36). Immunohistochemical analysis showed the cytokines were mainly expressed in the red pulp region of the spleen and the medullary region of the thymus, where immune-activated cells aggregated. CONCLUSION The stable spleen/thymus expression ratios of pyroptosis-inducing cytokines indicated that immune organs exhibit strictly regulated functions to maintain immune homeostasis and adapt to the environment.
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Affiliation(s)
- H Fan
- Department of Dermatology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - S Zhang
- Department of Dermatology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - N Li
- Department of Dermatology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - P Fan
- Department of Dermatology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - X Hu
- Department of Dermatology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - K Liang
- Department of Dermatology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - X Cheng
- Department of Dermatology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Y Wu
- Department of Dermatology, Guangdong Provincial Hospital of Chinese Medicine, Guangzhou, China
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Chang YY, Wang YG, Fan P, Wang JQ, Shu YQ, Li R, Zhong XN, Long L, Zhao ZH, Li CX, Qiu W. [Expression of HLA-DP in patients with neuromyelitis optica spectrum disorders]. Zhonghua Yi Xue Za Zhi 2019; 99:3574-3580. [PMID: 31826574 DOI: 10.3760/cma.j.issn.0376-2491.2019.45.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the effect of HLA-DP gene expression on the susceptibility and disease status of neuromyelitis optica spectrum disorders (NMOSD). Methods: A total of 86 NMOSD patients (52 in acute phase and 34 in remission phase), 52 multiple sclerosis (MS) patients (20 in acute phase and 32 in remission phase) diagnosed in Department of Neurology, the Third Affiliated Hospital of Sun Yat-sen University and 29 healthy controls were enrolled prospectively. Genotyping of HLA-DP was performed. The expression levels of HLA-DP molecules in peripheral blood B cells and monocytes were measured by flow cytometry. The transcription levels of HLA-DPB1 mRNA in peripheral blood mononuclear cells (PBMC) were measured by real time-PCR. The results were compared among different groups Results: There was no statistically significant difference of the distributions of HLA-DPB1*0501/HLA-DPB1*0501, HLA-DPB1*0501/X and X/X genotypes and the frequencies of allele of HLA-DPB1*0501 among NMOSD, MS patients and healthy controls (P=0.96 and 0.71, respectively). The expression levels of HLA-DP on the surface of B cells in NMOSD patients, especially in remission phase patients, were significantly higher than those in healthy controls(212±328 and 374±394 vs 55±57, P=0.049 and 0.002, respectively). The expression levels of HLA-DP on the surface of monocytes in NMOSD patients in acute phase were significantly higher than those in healthy controls(158±175 vs 65±90, P=0.025). The transcription levels of PMBC HLA-DPB1 mRNA in acute phase and remission phase of NMOSD patients were significantly higher than those in healthy controls (3.0±1.4 and 2.9±1.3 vs 1.5±1.4, P=0.000 and 0.003, respectively). The expression levels of HLA-DP molecules on the surface of peripheral blood B cells and monocytes and the transcription levels of PMBC HLA-DPB1 mRNA in MS patients at the acute and remission stages were not significantly different from those in healthy controls. The expression levels of HLA-DP molecules on the surface of B cells in patients with HLA-DPB1*0501/HLA-DPB1*0501, HLA-DPB1*0501/X and X/X genotypes were statistically different (P=0.017). Conclusion: HLA-DP gene transcription and molecular expression levels in antigen presenting cells may affect the susceptibility and disease status of NMOSD patients, while HLA-DPB1*0501 allele may affect the transcription and molecular expression levels of HLA-DP gene in antigen presenting cells.
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Affiliation(s)
- Y Y Chang
- Department of Neurology, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou 510630, China
| | - Y G Wang
- Department of Neurology, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou 510630, China
| | - P Fan
- Department of Neurology, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou 510630, China
| | - J Q Wang
- Department of Neurology, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou 510630, China
| | - Y Q Shu
- Department of Neurology, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou 510630, China
| | - R Li
- Department of Neurology, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou 510630, China
| | - X N Zhong
- Department of Neurology, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou 510630, China
| | - L Long
- Department of Neurology, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou 510630, China
| | - Z H Zhao
- Department of Neurology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450051, China
| | - C X Li
- School of Mathematics, Sun Yat-sen University, Guangzhou 510275, China
| | - W Qiu
- Department of Neurology, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou 510630, China
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Qiu MH, Bian LY, Fang CA, Fan P, Zhao WC, Li J, Li Y, Han YL. [Value of SYNTAX revascularization index on evaluating the long-term prognosis of coronary artery disease patients with biodegradable polymer drug-eluting stents implantation]. Zhonghua Xin Xue Guan Bing Za Zhi 2019; 47:790-797. [PMID: 31648461 DOI: 10.3760/cma.j.issn.0253-3758.2019.10.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore the value of SYNTAX revascularization index (SRI) on evaluating the long-term prognosis of coronary artery disease (CAD) patients implanted with biodegradable polymer drug-eluting stents (BP-DES) and define the best threshold of SRI for predicting all-cause mortality in these patients. Methods: Data used in this study derived from the I-LOVE-IT 2 trial (evaluate safety and effectiveness of the Tivoli DES and the Firebird DES for treatment of coronary). I-LOVE-IT 2 trial was a prospective, multicenter, randomized, assessor-blinded, non-inferiority study. A total of 1 829 patients implanted with BP-DES were divided into 3 groups, namely SRI=100% group (n=963), 50%≤SRI<100% group (n=527) and SRI<50% group (n=339). The primary endpoint was 48-month patient-oriented composite endpoint (PoCE), a composite of all-cause mortality, myocardial infarction(MI), stroke, and/or any revascularization. The secondary endpoints were components of PoCE and definite/probable stent thrombosis at 48 months. The receiver operating characteristic curve was used to investigate the best cut-off point of SRI for 48-month all-cause mortality. The Cox regression analysis was used to identify independent predictors of the all-cause death and PoCE at 48 months. Results: Incidence of PoCE at 48 months was significantly lower in SRI=100% group than patients with 50%≤SRI<100%(17.34% (167/963) vs. 22.20% (117/527), P<0.05) and SRI<50% (17.34% (167/963) vs. 24.78% (84/339), P<0.05). Comparing with SRI=100% group, the patients with 50%≤SRI<100% suffered higher rates of all MI (7.78% (41/527) vs. 4.26% (41/963), P<0.05) and target vessel MI (6.45% (34/527) vs. 4.26% (41/963), P<0.05); patients with SRI<50% had higher rates of all-cause mortality (5.90% (20/339) vs. 3.12% (30/963), P<0.05) and any revascularization (14.16% (48/339) vs. 3.12% (30/963), P<0.05). The receiver operating characteristic curve analysis showed that the SRI=65% was the best cut-off point to predict the all-cause mortality at 48 months (area under the curve was 0.58, sensitive was 0.47, specificity was 0.70). Meanwhile, SRI<65% was an independent predictor of 48-month all-cause mortality (HR=2.06, 95%CI 1.25-3.38) and PoCE (HR=1.34, 95%CI 1.09-1.66). Conclusions: SRI serves as a good index for predicting long-term prognosis and SRI<65% is an independent predictor of 48-month PoCE and all-cause mortality for CAD patients with BP-DES implantation. Meanwhile, SRI≥65% might be a reasonable threshold of incomplete revascularization.
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Affiliation(s)
- M H Qiu
- Department of Cardiology, General Hospital of Northern Theater Command, Shenyang 110016, China
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Liu Q, Liu H, Bai H, Huang W, Zhang R, Tan J, Guan L, Fan P. Association of SOD2 A16V and PON2 S311C polymorphisms with polycystic ovary syndrome in Chinese women. J Endocrinol Invest 2019; 42:909-921. [PMID: 30607774 DOI: 10.1007/s40618-018-0999-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/17/2018] [Accepted: 12/24/2018] [Indexed: 12/11/2022]
Abstract
PURPOSE To investigate the relationship between superoxide dismutase 2 (SOD2) A16V and paraoxonase 2 (PON2) S311C gene variants and the risk of polycystic ovary syndrome (PCOS) and evaluate the effects of the genotypes on clinical, hormonal, metabolic and oxidative stress indexes in Chinese women. METHODS This is a cross-sectional study of 932 patients with PCOS and 745 control women. For the clinical and metabolic association study of genotypes, 631 patients and 492 controls were included after excluding the subjects with interferential factors. Genotypes were determined by polymerase chain reaction (PCR) and restriction fragment length polymorphism analysis. Serum total oxidant status, total antioxidant capacity (T-AOC), oxidative stress index and malondialdehyde (MDA) levels, and clinical and metabolic parameters were also analyzed. RESULTS The prevalence of the A allele of SOD2 A16V polymorphism was significantly greater in patients with PCOS than in control subjects. Genotype (AA + AV) remained a significant predictor for PCOS in prognostic models including age, body mass index, insulin resistance index, high-density lipoprotein (HDL), low-density lipoprotein (LDL), and triglycerides (TGs) as covariates. Patients carrying the A allele had significantly higher serum luteinizing hormone (LH) levels, and the ratio of LH to follicle-stimulating hormone compared with patients with the VV genotype. We also showed that patients carrying the C allele of the PON2 S311C polymorphism had lower T-AOC compared with patients carrying the SS genotype. However, no significant differences were observed in the frequencies of the S311C genotypes and alleles of the PON2 gene between PCOS and control groups. CONCLUSION The SOD2 A16V, but not PON2 S311C, polymorphism may be one of the genetic determinants for PCOS in Chinese women.
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Affiliation(s)
- Q Liu
- Laboratory of Genetic Disease and Perinatal Medicine, Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, 610041, Sichuan, People's Republic of China
| | - H Liu
- Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu, 610041, Sichuan, People's Republic of China
| | - H Bai
- Laboratory of Genetic Disease and Perinatal Medicine, Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, 610041, Sichuan, People's Republic of China
| | - W Huang
- Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu, 610041, Sichuan, People's Republic of China
| | - R Zhang
- Laboratory of Genetic Disease and Perinatal Medicine, Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, 610041, Sichuan, People's Republic of China
| | - J Tan
- Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu, 610041, Sichuan, People's Republic of China
| | - L Guan
- Laboratory of Genetic Disease and Perinatal Medicine, Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, 610041, Sichuan, People's Republic of China
| | - P Fan
- Laboratory of Genetic Disease and Perinatal Medicine, West China Second University Hospital, SichuanUniversity, Chengdu, 610041, Sichuan, People's Republic of China.
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Fan H, Li N, Fan P, Hu X, Liang K, Zhang S, Cheng X, Wu Y. Differential tissue expression of erythroblast macrophage protein in a MRL/lpr mouse model of lupus. Lupus 2019; 28:843-853. [PMID: 31132907 DOI: 10.1177/0961203319851572] [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] [Indexed: 11/16/2022]
Abstract
OBJECTIVE The objective of this study was to observe the expression features of erythroblast macrophage protein (EMP) between the tissues of MRL/lpr mice, a mouse model of systemic lupus erythematosus (SLE), and control mice. METHODS We examined the serum ANA in both mice groups through indirect immunofluorescence (IIF). Expression features of EMP in bone marrow, liver, renal, spleen, brain, and lung tissues of the MRL/lpr mice and control mice groups were followed using quantitative real-time polymerase chain reaction (Q-PCR). Meanwhile, the expression of EMP was located through immunohistochemical (IHC) studies and the expressive cell identified through double immunofluorescent labeling. RESULTS IIF showed that lupus mice have strong positive fluorescence, but no significant fluorescence was observed in control mice. Q-PCR detection revealed that EMP was expressed in the marrow, liver, renal, spleen, lung, and brain tissues of lupus mice. The highest levels were observed in the bone marrow, but there was no statistical difference between these tissues. EMP mRNA expression in the liver (t = 2.747, p = 0.01) and bone marrow (t = 3.853, p = 0.008) of lupus mice was significantly higher than in the control mice. However, no differences in EMP mRNA expression were observed in the renal, spleen, lung, and brain tissues between the lupus and control mice (p > 0.05). In addition, the IHC results showed that EMP protein is ubiquitously expressed in all of the tissues of the lupus and control mice. The positive expression rate in the bone marrow and liver tissues of the lupus mice was higher than in the control mice, but without an obvious difference in the other tissues. The double IF staining method shows that EMP protein was expressed in macrophages in the tissues of the lupus mice and the control mice. CONCLUSIONS Our data showed that EMP is ubiquitously expressed in macrophages at all of the tissues of the lupus and control mice. However, the expression of EMP in bone marrow and liver tissues of lupus mice was higher than in the control mice, which indicates that EMP may be important in the development of SLE.
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Affiliation(s)
- H Fan
- 1 Department of Dermatology, The First Affiliated Hospital of Guangzhou Medical University, China.,2 Department of Dermatology, The Affiliated Hospital of Guizhou Medical University, China
| | - N Li
- 1 Department of Dermatology, The First Affiliated Hospital of Guangzhou Medical University, China
| | - P Fan
- 1 Department of Dermatology, The First Affiliated Hospital of Guangzhou Medical University, China
| | - X Hu
- 1 Department of Dermatology, The First Affiliated Hospital of Guangzhou Medical University, China
| | - K Liang
- 1 Department of Dermatology, The First Affiliated Hospital of Guangzhou Medical University, China
| | - S Zhang
- 1 Department of Dermatology, The First Affiliated Hospital of Guangzhou Medical University, China
| | - X Cheng
- 1 Department of Dermatology, The First Affiliated Hospital of Guangzhou Medical University, China
| | - Y Wu
- 3 Department of Dermatology, The Second Affiliated Hospital of Guangzhou University of Traditional Chinese Medicine, China
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Dai X, Paula EM, Lelis ALJ, Silva LG, Brandao VLN, Monteiro HF, Fan P, Poulson SR, Jeong KC, Faciola AP. Effects of lipopolysaccharide dosing on bacterial community composition and fermentation in a dual-flow continuous culture system. J Dairy Sci 2018; 102:334-350. [PMID: 30343924 DOI: 10.3168/jds.2018-14807] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [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: 03/23/2018] [Accepted: 08/27/2018] [Indexed: 12/31/2022]
Abstract
The objectives of this study were to evaluate the effects of lipopolysaccharide (LPS) dosing on bacterial fermentation and bacterial community composition (BCC), to set up a subacute ruminal acidosis (SARA) nutritional model in vitro, and to determine the best sampling time for LPS dosing in a dual-flow continuous culture system. Diets were randomly assigned to 6 fermentors in a replicated 3 × 3 Latin square with three 11-d experimental periods that consisted of 7 d for diet adaptation and 4 d for sample collection. Treatments were control diet (CON), wheat and barley diet (WBD) to induce SARA, and control diet + LPS (LPSD). Fermenters were fed 72 g of dry matter/d. The forage:concentrate ratio of CON was 65:35. The WBD diet was achieved by replacing 40% of dry matter of the CON diet with 50% ground wheat and 50% ground barley. The LPS concentration in LPSD was 200,000 endotoxin units, which was similar to that observed in cows with SARA. The SARA inducing and LPS dosing started at d 8. The BCC was determined by sequencing the V4 region of the 16S rRNA gene using the Illumina MiSeq platform (Illumina Inc., San Diego, CA). The LPSD and CON maintained pH above 6 for the entire experimental period, and the WBD kept pH between 5.2 and 5.6 for 4 h/d, successfully inducing SARA. Digestibility of neutral detergent fiber and crude protein in LPSD were not different from WBD but tended to be lower than CON. Lipopolysaccharide dosing had no effect on pool of VFA concentrations and profiles but decreased bacterial N; the pattern changes of VFA and LPS in LPSD started to increase and be similar to WBD 6 h after LPS dosing. Pool of LPS concentration was around 11-fold higher in WBD and 4-fold higher in LPSD than CON. In the solid fraction, the BCC of LPSD was different from WBD and tended to be different from CON. In the liquid fraction, the BCC was different among treatments. The LPS dosing increased the relative abundance of Succinimonas, Anaeroplasma, Succinivibrio, Succiniclasticum, and Ruminobacter, which are main gram-negative bacteria related to starch digestion. Our results suggest that LPS dosing does not affect pH alone. However, LPS could drive the development of SARA by affecting bacteria and bacterial fermentation. For future studies, samples are suggested to be taken 6 h after LPS dosing in a dual-flow continuous culture system.
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Affiliation(s)
- X Dai
- Department of Animal Sciences, University of Florida, Gainesville 32611
| | - E M Paula
- Department of Animal Sciences, University of Florida, Gainesville 32611
| | - A L J Lelis
- Department of Animal Sciences, University of Florida, Gainesville 32611
| | - L G Silva
- Department of Animal Sciences, University of Florida, Gainesville 32611
| | - V L N Brandao
- Department of Animal Sciences, University of Florida, Gainesville 32611
| | - H F Monteiro
- Department of Animal Sciences, University of Florida, Gainesville 32611
| | - P Fan
- Department of Animal Sciences, University of Florida, Gainesville 32611
| | - S R Poulson
- Department of Geological Sciences and Engineering, University of Nevada, Reno 89557
| | - K C Jeong
- Department of Animal Sciences, University of Florida, Gainesville 32611
| | - A P Faciola
- Department of Animal Sciences, University of Florida, Gainesville 32611.
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Zhang JX, Yang Z, Fan P, Zhang JJ, Xin L, Hou LN, Du XS, Yang XT. [Evaluation of progression-free survival for locally advanced rectal cancer by MRI after neoadjuvant chemoradiotherapy and total mesorectal excision]. Zhonghua Zhong Liu Za Zhi 2018; 40:121-126. [PMID: 29502372 DOI: 10.3760/cma.j.issn.0253-3766.2018.02.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To evaluate the predictive value of MRI features and pathological parameters on local recurrence, metastasis and progression free survival (PFS) for locally advanced rectal cancer after neoadjuvant chemoradiotherapy and subsequent total mesorectal excision surgery. Methods: A retrospective analysis of 95 patients with locally advanced rectal adenocarcinoma who underwent total mesorectal excision after neoadjuvant chemoradiotherapy was performed. Univariate and multivariate analyses were performed to evaluate the predictive value of MRI features before chemoradiation and postoperative pathological parameters on progression free survival. Results: Among the 95 cases, 5 cases occured local recurrence, 21 cases developed, 3 cases including both locally recurrence and distant metastasis, 19 died and 47 had no recurrence or metastasis at the last of follow-up. Univariant analysis showed that MRI signs before chemoradiation, namely, mr circumferential resection margin, mr levator ani muscle invasion, mr lymphatic vessel invasion, mr tumor deposition and postoperative pathological parameters, yp circumferential resection margin, yp lymphatic vessel invasion were related to PFS (P<0.05). Multivariate analysis of Cox proportional hazard model showed that mr lymphatic vessel invasion and mr tumor deposition were independent factors for PFS (OR=2.774 and 3.029, P<0.05). Conclusions: Lymphatic vessel invasion and tumor deposition on MRI are independent prognostic factors for progression free survival of locally advanced rectal cancer after neoadjuvant chemoradiotherapy and TME surgery. To some extent, MRI signs can assess local recurrence and distant metastasis in locally advanced rectal cancer patients after neoadjuvant chemoradiotherapy and mesorectal excision.
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Affiliation(s)
- J X Zhang
- MRI/CT Unit, Shanxi Cancer Hospital, the Third People's Hospital of Shanxi Province, Taiyuan 030013, China
| | - Z Yang
- MRI/CT Unit, Shanxi Cancer Hospital, the Third People's Hospital of Shanxi Province, Taiyuan 030013, China
| | - P Fan
- MRI/CT Unit, Shanxi Cancer Hospital, the Third People's Hospital of Shanxi Province, Taiyuan 030013, China
| | - J J Zhang
- MRI/CT Unit, Shanxi Cancer Hospital, the Third People's Hospital of Shanxi Province, Taiyuan 030013, China
| | - L Xin
- MRI/CT Unit, Shanxi Cancer Hospital, the Third People's Hospital of Shanxi Province, Taiyuan 030013, China
| | - L N Hou
- MRI/CT Unit, Shanxi Cancer Hospital, the Third People's Hospital of Shanxi Province, Taiyuan 030013, China
| | - X S Du
- MRI/CT Unit, Shanxi Cancer Hospital, the Third People's Hospital of Shanxi Province, Taiyuan 030013, China
| | - X T Yang
- MRI/CT Unit, Shanxi Cancer Hospital, the Third People's Hospital of Shanxi Province, Taiyuan 030013, China
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Fan P, Sun Z, Wang Y, Chang H, Zhang P, Yao S, Lu C, Rao W, Liu J. Nano liquid metal for the preparation of a thermally conductive and electrically insulating material with high stability. RSC Adv 2018; 8:16232-16242. [PMID: 35542188 PMCID: PMC9080261 DOI: 10.1039/c8ra00262b] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [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: 01/10/2018] [Accepted: 04/09/2018] [Indexed: 11/21/2022] Open
Abstract
Dielectric materials typically demonstrate poor thermal conductivity, which limits their application in emerging technologies in integrated circuits, computer chips, light-emitting diode lamps, and other electronic packaging areas. Using liquid metal microdroplets as inclusions to develop thermal interface materials has been shown to effectively improve thermal pathways, but this type of material may become electroconductive with the application of a concentrated compressive stress. In this study, an isotropic nano-liquid metal thermally-conductive and electrically-insulating material (nLM-THEM) is developed by combining a modified polymer and well-dispersed nanoparticles, achieving an ∼50× increase in thermal conductivity over the base polymer. In addition, the thermal conductivity of nLM-THEMs exhibits no significant change with varying humidity and a stable anti-corrosion effect even in direct contact with aluminum. More importantly, nLM-THEMs demonstrate a stable electrical insulating property upon compressive stress, while conventional micro-LM-THEMs exude liquid metal. This exceptional combination of thermal and electrical insulation properties is enabled by the interconnection of uniform and spherical liquid metal nanoparticles to create more thermally-conductive pathways, and surfactant modified nanoparticles ensure excellent electric insulation. Moreover, this material can achieve passive heat exchange through rapid heat dissipation, which demonstrates its great application potential in the electronic packaging area. Compared to liquid metal (LM) microdroplets based thermally conductive materials (micro-LM-THEMs), nano LM-THEMs (nLM-THEMs) presents a more stable electric insulating property even upon stress, achieving ~50-fold thermal conductivity over base polymer.![]()
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Affiliation(s)
- P. Fan
- Beijing Engineering Research Center of Sustainable Energy and Buildings
- Beijing University of Civil Engineering and Architecture
- Beijing
- China
- Beijing Key Lab of CryoBiomedical Engineering and Key Lab of Cryogenics
| | - Z. Sun
- Beijing Engineering Research Center of Sustainable Energy and Buildings
- Beijing University of Civil Engineering and Architecture
- Beijing
- China
| | - Y. Wang
- Beijing Key Lab of CryoBiomedical Engineering and Key Lab of Cryogenics
- Technical Institute of Physics and Chemistry
- Chinese Academy of Sciences
- Beijing
- P. R. China
| | - H. Chang
- Beijing Engineering Research Center of Sustainable Energy and Buildings
- Beijing University of Civil Engineering and Architecture
- Beijing
- China
- Beijing Key Lab of CryoBiomedical Engineering and Key Lab of Cryogenics
| | - P. Zhang
- Beijing Key Lab of CryoBiomedical Engineering and Key Lab of Cryogenics
- Technical Institute of Physics and Chemistry
- Chinese Academy of Sciences
- Beijing
- P. R. China
| | - S. Yao
- Beijing Key Lab of CryoBiomedical Engineering and Key Lab of Cryogenics
- Technical Institute of Physics and Chemistry
- Chinese Academy of Sciences
- Beijing
- P. R. China
| | - C. Lu
- Beijing Key Lab of CryoBiomedical Engineering and Key Lab of Cryogenics
- Technical Institute of Physics and Chemistry
- Chinese Academy of Sciences
- Beijing
- P. R. China
| | - W. Rao
- Beijing Key Lab of CryoBiomedical Engineering and Key Lab of Cryogenics
- Technical Institute of Physics and Chemistry
- Chinese Academy of Sciences
- Beijing
- P. R. China
| | - J. Liu
- Beijing Key Lab of CryoBiomedical Engineering and Key Lab of Cryogenics
- Technical Institute of Physics and Chemistry
- Chinese Academy of Sciences
- Beijing
- P. R. China
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Fan P, Zhang Y, Deng F, Chen SH, Li M, Zhang Q. [The value of serum human tumor protein P53 in colorectal cancer combined diagnosis and postoperative monitoring]. Zhonghua Yi Xue Za Zhi 2017; 97:2670-2673. [PMID: 28910954 DOI: 10.3760/cma.j.issn.0376-2491.2017.34.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: The aim of this paper is to investigate the application value of serum human tumor protein P53 (TP53) in the diagnosis and postoperative monitoring of colorectal cancer. Methods: One hundred and fifteen patients with colorectal cancer diagnosed without colorectal cancer and without surgery, radiotherapy and chemotherapy and total of 158 patients with colorectal benign disease and 182 healthy subjects were enrolled in this study. The levels of serum carcinoembryonic antigen (CEA) and carbohydrate antigen 199 (CA199) were detected by electrochemiluminescence assay. The expression of TP53 was analyzed by ELISA. Fourth-one patients with colorectal cancer were detected with one day before operation and the first seven days after operation. The expression of CEA, CA199 and TP53 was analyzed by ROC curve. The results were compared with those of CEA and CA199 diagnostic value. Results: The medians of the levels of TP53 in patients with colorectal cancer patients, colorectal benign, and healthy subjects are 316.0(24.6, 940.8 ) , 9.8(3.7, 30.1 ) and 1.9(1.4, 2.5 ) μg/L (H=260.161, P<0.01), respectively. The level of TP53 in patients with colorectal cancer was significantly higher than that in colorectal benign and healthy subjects. The levels of serum TP53 in patients with colorectal cancer show great discrepancies in different TNM stages, different tumor location, depth of invasion and lymph node metastasis (P<0.05) , but no difference in sex, age, and tumor growth type. The levels of TP53 in the same patient is 711.5(354.9, 1 068.0) μg/L in the first seven days after operation, significantly decreased when compared to it in the one day before the operation with the value of 952.6 (419.7, 1485.4) μg/L (Z=-1.989, P<0.05). The difference was statistically significant, and CEA, CA199 were not statistically significant. And the sensitivity (79.1%) and specificity (81.8%) of TP 53 were significantly higher than those of CEA (39.1%, 70.3%) and CA199 (47.8%, 69.1%). If TP53 was combined with CEA and CA199, sensitivity (86.1%) and specificity (87.9%) can be significantly improved, in which the area of Receiver Operating Characteristic (ROC) curve was 0.924. Conclusions: Serum TP53 has a certain positive significance for the diagnosis, postoperative monitoring of colorectal cancer. Combined detection with CEA and CA199 can improve the sensitivity and specificity, implicating good clinical application value.
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Affiliation(s)
- P Fan
- Department of Abdominal Surgery, The West of Anhui Provincial Hospital (Anhui Provincial Cancer Hospital), Hefei 230031 , China
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