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Wang Q, Wang Z, Xu C, Wu D, Wang T, Wang C, Shao J. Physical impediment to sodium houttuyfonate conversely reinforces β-glucan exposure stimulated innate immune response to Candida albicans. Med Mycol 2024; 62:myae014. [PMID: 38389246 DOI: 10.1093/mmy/myae014] [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: 11/23/2023] [Revised: 02/12/2024] [Accepted: 02/20/2024] [Indexed: 02/24/2024] Open
Abstract
Candida albicans is a dimorphic opportunistic pathogen in immunocompromised individuals. We have previously demonstrated that sodium houttuyfonate (SH), a derivative of medicinal herb Houttuynia cordata Thunb, was effective for antifungal purposes. However, the physical impediment of SH by C. albicans β-glucan may weaken the antifungal activity of SH. In this study, the interactions of SH with cell wall (CW), extracellular matrix (EM), CW β-glucan, and a commercial β-glucan zymosan A (ZY) were inspected by XTT assay and total plate count in a standard reference C. albicans SC5314 as well as two clinical fluconazole-resistant strains Z4935 and Z5172. After treatment with SH, the content and exposure of CW β-glucan, chitin, and mannan were detected, the fungal clearance by phagocytosis of RAW264.7 and THP-1 was examined, and the gene expressions and levels of cytokines TNF-ɑ and IL-10 were also monitored. The results showed that SH could be physically impeded by β-glucan in CW, EM, and ZY. This impediment subsequently triggered the exposure of CW β-glucan and chitin with mannan masked in a time-dependent manner. SH-induced β-glucan exposure could significantly enhance the phagocytosis and inhibit the growth of C. albicans. Meanwhile, the SH-pretreated fungal cells could greatly stimulate the cytokine gene expressions and levels of TNF-ɑ and IL-10 in the macrophages. In sum, the strategy that the instant physical impediment of C. albicans CW to SH, which can induce the exposure of CW β-glucan may be universal for C. albicans in response to physical deterrent by antifungal drugs.
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Affiliation(s)
- Qirui Wang
- Laboratory of Anti-infection and Immunity, College of Integrated Chinese and Western Medicine (College of Life Science), Anhui University of Chinese Medicine, Hefei, Anhui, P. R. China
| | - Zixu Wang
- Laboratory of Anti-infection and Immunity, College of Integrated Chinese and Western Medicine (College of Life Science), Anhui University of Chinese Medicine, Hefei, Anhui, P. R. China
| | - Chen Xu
- Laboratory of Anti-infection and Immunity, College of Integrated Chinese and Western Medicine (College of Life Science), Anhui University of Chinese Medicine, Hefei, Anhui, P. R. China
| | - Daqiang Wu
- Laboratory of Anti-infection and Immunity, College of Integrated Chinese and Western Medicine (College of Life Science), Anhui University of Chinese Medicine, Hefei, Anhui, P. R. China
- Institute of Integrated Traditional Chinese and Western Medicine, Anhui Academy of Chinese Medicine, Hefei, Anhui, P. R. China
| | - Tianming Wang
- Laboratory of Anti-infection and Immunity, College of Integrated Chinese and Western Medicine (College of Life Science), Anhui University of Chinese Medicine, Hefei, Anhui, P. R. China
| | - Changzhong Wang
- Laboratory of Anti-infection and Immunity, College of Integrated Chinese and Western Medicine (College of Life Science), Anhui University of Chinese Medicine, Hefei, Anhui, P. R. China
- Institute of Integrated Traditional Chinese and Western Medicine, Anhui Academy of Chinese Medicine, Hefei, Anhui, P. R. China
| | - Jing Shao
- Laboratory of Anti-infection and Immunity, College of Integrated Chinese and Western Medicine (College of Life Science), Anhui University of Chinese Medicine, Hefei, Anhui, P. R. China
- Institute of Integrated Traditional Chinese and Western Medicine, Anhui Academy of Chinese Medicine, Hefei, Anhui, P. R. China
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Wang Y, Li H, Dai X, Zhou L. An interval AQI combination prediction model based on multiple data decomposition and information aggregation operator. Environ Sci Pollut Res Int 2024; 31:14284-14302. [PMID: 38277105 DOI: 10.1007/s11356-024-32060-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Accepted: 01/15/2024] [Indexed: 01/27/2024]
Abstract
In this paper, an interval Air Quality Index (AQI) combination prediction model based on EEMD, VMD, and the weighted power average (WPA) operator is proposed. EEMD and VMD decompose complex AQI data effectively, while WPA operator reasonably aggregates the prediction results of different models. We validate the effectiveness of the proposed model using Shenzhen's daily interval AQI. Furthermore, three kinds of prediction models are compared with the proposed model to highlight its advantages from various perspectives. The results show that the introduction of data decomposition methods significantly improves the model's prediction accuracy, WPA operator further enhances the model's prediction capability, and the incorporation of EEMD and VMD enables the proposed model to have stronger feature extraction capabilities for complex time series. As a result, the model proposed in this paper demonstrates strong generalization ability and prediction accuracy, making it applicable not only for air quality prediction but also for other domains such as economics and environment.
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Affiliation(s)
- Yixiang Wang
- School of Big Data and Statistics, Anhui University, Hefei, 230601, Anhui, China
- Center for Applied Mathematics, Anhui University, Anhui University, Hefei, 230601, Anhui, China
| | - Hao Li
- School of Big Data and Statistics, Anhui University, Hefei, 230601, Anhui, China
- Center for Applied Mathematics, Anhui University, Anhui University, Hefei, 230601, Anhui, China
| | - Xianchao Dai
- School of Big Data and Statistics, Anhui University, Hefei, 230601, Anhui, China
- Center for Applied Mathematics, Anhui University, Anhui University, Hefei, 230601, Anhui, China
| | - Ligang Zhou
- School of Big Data and Statistics, Anhui University, Hefei, 230601, Anhui, China.
- Center for Applied Mathematics, Anhui University, Anhui University, Hefei, 230601, Anhui, China.
- School of Mathematical Sciences, Anhui University, Hefei, 230601, Anhui, China.
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3
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Li B, Huang Y, Bao J, Xu Z, Yan X, Zou Q. Supramolecular Nanoarchitectonics Based on Antagonist Peptide Self-Assembly for Treatment of Liver Fibrosis. Small 2023; 19:e2304675. [PMID: 37433983 DOI: 10.1002/smll.202304675] [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] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Indexed: 07/13/2023]
Abstract
Therapeutic peptides have attracted increasing attention as anti-fibrotic drug candidates. However, the rapid degradation and insufficient liver accumulation of therapeutic peptides have seriously hampered their clinical translation. Here, the use of supramolecular nanoarchitectonics is reported to fabricate nanodrugs from therapeutic peptides for treating liver fibrosis. Self-assembling antagonist peptides are rationally designed and manipulated into uniform peptide nanoparticles with well-defined nanostructures and uniform sizes. Significantly, the peptide nanoparticles show enhanced accumulation in liver sites and limited distribution in other tissues. In vivo results show that the peptide nanoparticles exhibit greatly enhanced anti-fibrotic activity compared to the pristine antagonist along with good biocompatibility. These results indicate that self-assembly is a promising nanoarchitectonics approach to enhance the anti-fibrotic activity of therapeutic peptides for treating liver fibrosis.
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Affiliation(s)
- Bowen Li
- School of Pharmacy, Anhui Medical University, Hefei, 230032, P. R. China
| | - Yan Huang
- School of Pharmacy, Anhui Medical University, Hefei, 230032, P. R. China
| | - Jianwei Bao
- School of Pharmacy, Anhui Medical University, Hefei, 230032, P. R. China
| | - Zixuan Xu
- School of Pharmacy, Anhui Medical University, Hefei, 230032, P. R. China
| | - Xuehai Yan
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Qianli Zou
- School of Pharmacy, Anhui Medical University, Hefei, 230032, P. R. China
- Institute of Health and Medicine, Hefei Comprehensive National Science Center, Hefei, 230000, P. R. China
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4
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Lv K, Cui C, Fan R, Zha X, Wang P, Zhang J, Zhang L, Ke J, Zhao D, Cui Q, Yang L. Detection of diabetic patients in people with normal fasting glucose using machine learning. BMC Med 2023; 21:342. [PMID: 37674168 PMCID: PMC10483877 DOI: 10.1186/s12916-023-03045-9] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Accepted: 08/23/2023] [Indexed: 09/08/2023] Open
Abstract
BACKGROUND Diabetes mellitus (DM) is a chronic metabolic disease that could produce severe complications threatening life. Its early detection is thus quite important for the timely prevention and treatment. Normally, fasting blood glucose (FBG) by physical examination is used for large-scale screening of DM; however, some people with normal fasting glucose (NFG) actually have suffered from diabetes but are missed by the examination. This study aimed to investigate whether common physical examination indexes for diabetes can be used to identify the diabetes individuals from the populations with NFG. METHODS The physical examination data from over 60,000 individuals with NFG in three Chinese cohorts were used. The diabetes patients were defined by HbA1c ≥ 48 mmol/mol (6.5%). We constructed the models using multiple machine learning methods, including logistic regression, random forest, deep neural network, and support vector machine, and selected the optimal one on the validation set. A framework using permutation feature importance algorithm was devised to discover the personalized risk factors. RESULTS The prediction model constructed by logistic regression achieved the best performance with an AUC, sensitivity, and specificity of 0.899, 85.0%, and 81.1% on the validation set and 0.872, 77.9%, and 81.0% on the test set, respectively. Following feature selection, the final classifier only requiring 13 features, named as DRING (diabetes risk of individuals with normal fasting glucose), exhibited reliable performance on two newly recruited independent datasets, with the AUC of 0.964 and 0.899, the balanced accuracy of 84.2% and 81.1%, the sensitivity of 100% and 76.2%, and the specificity of 68.3% and 86.0%, respectively. The feature importance ranking analysis revealed that BMI, age, sex, absolute lymphocyte count, and mean corpuscular volume are important factors for the risk stratification of diabetes. With a case, the framework for identifying personalized risk factors revealed FBG, age, and BMI as significant hazard factors that contribute to an increased incidence of diabetes. DRING webserver is available for ease of application ( http://www.cuilab.cn/dring ). CONCLUSIONS DRING was demonstrated to perform well on identifying the diabetes individuals among populations with NFG, which could aid in early diagnosis and interventions for those individuals who are most likely missed.
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Affiliation(s)
- Kun Lv
- Key Laboratory of Non-Coding RNA Transformation Research of Anhui Higher Education Institutes, Wuhu, China.
- Central Laboratory, First Affiliated Hospital of Wannan Medical College, Wuhu, People's Republic of China.
| | - Chunmei Cui
- Department of Biomedical Informatics, State Key Laboratory of Vascular Homeostasis and Remodeling, School of Basic Medical Sciences, Peking University, Beijing, People's Republic of China.
| | - Rui Fan
- Department of Biomedical Informatics, State Key Laboratory of Vascular Homeostasis and Remodeling, School of Basic Medical Sciences, Peking University, Beijing, People's Republic of China
| | - Xiaojuan Zha
- Laboratory Medicine, First Affiliated Hospital of Wannan Medical College, Wuhu, People's Republic of China
| | - Pengyu Wang
- Department of Pathophysiology, Harbin Medical University, Harbin, People's Republic of China
| | - Jun Zhang
- Medical College of Shihezi University, Shihezi, People's Republic of China
| | - Lina Zhang
- Department of Laboratory Diagnosis, Daqing Oil Field General Hospital, Daqing, People's Republic of China
| | - Jing Ke
- Beijing Key Laboratory of Diabetes Research and Care, Center for Endocrine Metabolism and Immune Diseases, Beijing Luhe Hospital, Capital Medical University, Beijing, People's Republic of China
| | - Dong Zhao
- Beijing Key Laboratory of Diabetes Research and Care, Center for Endocrine Metabolism and Immune Diseases, Beijing Luhe Hospital, Capital Medical University, Beijing, People's Republic of China.
| | - Qinghua Cui
- Department of Biomedical Informatics, State Key Laboratory of Vascular Homeostasis and Remodeling, School of Basic Medical Sciences, Peking University, Beijing, People's Republic of China.
| | - Liming Yang
- Department of Pathophysiology, Harbin Medical University, Harbin, People's Republic of China.
- National Key Laboratory of Frigid Zone Cardiovascular Diseases (NKLFZCD), Harbin Medical University, Harbin, People's Republic of China.
- NHC Key Laboratory of Cell Transplantation, The First Affiliated Hospital of Harbin Medical University, Harbin, People's Republic of China.
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Wang X, Wang E, Zhao G. Advanced cryopreservation engineering strategies: the critical step to utilize stem cell products. Cell Regen 2023; 12:28. [PMID: 37528321 PMCID: PMC10393932 DOI: 10.1186/s13619-023-00173-8] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Accepted: 07/12/2023] [Indexed: 08/03/2023]
Abstract
With the rapid development of stem cell-related therapies and regenerative medicine, the clinical application of stem cell products is on the rise. However, ensuring the effectiveness of these products after storage and transportation remains a challenge in the transformation to clinical trials. Cryopreservation technology allows for the long-term storage of cells while ensuring viability, making it a top priority for stem cell preservation. The field of cryopreservation-related engineering technologies is thriving, and this review provides an overview of the background and basic principles of cryopreservation. It then delves into the main bioengineering technologies and strategies used in cryopreservation, including photothermal and electromagnetic rewarming, microencapsulation, and synergetic ice inhibition. Finally, the current challenges and future prospects in the field of efficient cryopreservation of stem cells are summarized and discussed.
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Affiliation(s)
- Xiaohu Wang
- Department of Electronic Engineering and Information Science, University of Science and Technology of China, Hefei, 230027, China
| | - Enyu Wang
- Department of Electronic Engineering and Information Science, University of Science and Technology of China, Hefei, 230027, China
| | - Gang Zhao
- Department of Electronic Engineering and Information Science, University of Science and Technology of China, Hefei, 230027, China.
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Yang L, Cheng T, Shao J. Perspective on receptor-associated immune response to Candida albicans single and mixed infections: Implications for therapeutics in oropharyngeal candidiasis. Med Mycol 2023; 61:myad077. [PMID: 37533203 DOI: 10.1093/mmy/myad077] [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: 04/04/2023] [Revised: 07/11/2023] [Accepted: 07/25/2023] [Indexed: 08/04/2023] Open
Abstract
Oropharyngeal candidiasis (OPC), commonly known as 'thrush', is an oral infection that usually dismantles oral mucosal integrity and malfunctions local innate and adaptive immunities in compromised individuals. The major pathogen responsible for the occurrence and progression of OPC is the dimorphic opportunistic commensal Candida albicans. However, the incidence induced by non-albicans Candida species including C. glabrata, C. tropicalis, C. dubliniensis, C. parapsilosis, and C. krusei are increasing in company with several oral bacteria, such as Streptococcus mutans, S. gordonii, S. epidermidis, and S. aureus. In this review, the microbiological and infection features of C. albicans and its co-contributors in the pathogenesis of OPC are outlined. Since the invasion and concomitant immune response lie firstly on the recognition of oral pathogens through diverse cellular surface receptors, we subsequently emphasize the roles of epidermal growth factor receptor, ephrin-type receptor 2, human epidermal growth factor receptor 2, and aryl hydrocarbon receptor located on oral epithelial cells to delineate the underlying mechanism by which host immune recognition to oral pathogens is mediated. Based on these observations, the therapeutic approaches to OPC comprising conventional and non-conventional antifungal agents, fungal vaccines, cytokine and antibody therapies, and antimicrobial peptide therapy are finally overviewed. In the face of newly emerging life-threatening microbes (C. auris and SARS-CoV-2), risks (biofilm formation and interconnected translocation among diverse organs), and complicated clinical settings (HIV and oropharyngeal cancer), the research on OPC is still a challenging task.
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Affiliation(s)
- Liu Yang
- Laboratory of Anti-infection and Immunity, College of Integrated Chinese and Western Medicine (College of Life Science), Anhui University of Chinese Medicine, Zhijing Building, 350 Longzihu Road, Xinzhan District, Hefei 230012, P. R. China
| | - Ting Cheng
- Laboratory of Anti-infection and Immunity, College of Integrated Chinese and Western Medicine (College of Life Science), Anhui University of Chinese Medicine, Zhijing Building, 350 Longzihu Road, Xinzhan District, Hefei 230012, P. R. China
| | - Jing Shao
- Laboratory of Anti-infection and Immunity, College of Integrated Chinese and Western Medicine (College of Life Science), Anhui University of Chinese Medicine, Zhijing Building, 350 Longzihu Road, Xinzhan District, Hefei 230012, P. R. China
- Institute of Integrated Traditional Chinese and Western Medicine, Anhui Academy of Chinese Medicine, Zhijing Building, 350 Longzihu Road, Xinzhan District, Hefei 230012, P. R. China
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7
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Cheng T, Xu C, Shao J. Updated immunomodulatory roles of gut flora and microRNAs in inflammatory bowel diseases. Clin Exp Med 2023; 23:1015-1031. [PMID: 36385416 PMCID: PMC9668223 DOI: 10.1007/s10238-022-00935-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2022] [Accepted: 10/27/2022] [Indexed: 11/17/2022]
Abstract
Inflammatory bowel disease is a heterogeneous intestinal inflammatory disorder, including ulcerative colitis (UC) and Crohn's disease (CD). Existing studies have shown that the pathogenesis of IBD is closely related to the host's genetic susceptibility, intestinal flora disturbance and mucosal immune abnormalities, etc. It is generally believed that there are complicated interactions between host immunity and intestinal microflora/microRNAs during the occurrence and progression of IBD. Intestinal flora is mainly composed of bacteria, fungi, viruses and helminths. These commensals are highly implicated in the maintenance of intestinal microenvironment homeostasis alone or in combination. MiRNA is an endogenous non-coding small RNA with a length of 20 to 22 nucleotides, which can perform a variety of biological functions by silencing or activating target genes through complementary pairing bonds. A large quantity of miRNAs are involved in intestinal inflammation, mucosal barrier integrity, autophagy, vesicle transportation and other small RNA alterations in IBD circumstance. In this review, the immunomodulatory roles of gut flora and microRNAs are updated in the occurrence and progression of IBD. Meanwhile, the gut flora and microRNA targeted therapeutic strategies as well as other immunomodulatory approaches including TNF-α monoclonal antibodies are also emphasized in the treatment of IBD.
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Affiliation(s)
- Ting Cheng
- Laboratory of Infection and Immunity, College of Integrated Chinese and Western Medicine (College of Life Science), Anhui University of Chinese Medicine, Zhijing Building, 433 Room, 350 Longzihu Road, Xinzhan District, Hefei, 230012, Anhui, People's Republic of China
| | - Chen Xu
- Laboratory of Infection and Immunity, College of Integrated Chinese and Western Medicine (College of Life Science), Anhui University of Chinese Medicine, Zhijing Building, 433 Room, 350 Longzihu Road, Xinzhan District, Hefei, 230012, Anhui, People's Republic of China
| | - Jing Shao
- Laboratory of Infection and Immunity, College of Integrated Chinese and Western Medicine (College of Life Science), Anhui University of Chinese Medicine, Zhijing Building, 433 Room, 350 Longzihu Road, Xinzhan District, Hefei, 230012, Anhui, People's Republic of China.
- Institute of Integrated Traditional Chinese and Western Medicine, Anhui Academy of Chinese Medicine, 350 Longzihu Road, Xinzhan District, Hefei, 230012, Anhui, People's Republic of China.
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8
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Pan XS, Li BW, Wang LL, Li N, Lin HM, Zhang J, Du N, Zhu YQ, Wu X, Hu CM, Wu WY, Hou H, Zhao HC, Liao SY, Yang YN, Huang Y. Kupffer cell pyroptosis mediated by METTL3 contributes to the progression of alcoholic steatohepatitis. FASEB J 2023; 37:e22965. [PMID: 37171272 DOI: 10.1096/fj.202300059rr] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Revised: 04/17/2023] [Accepted: 04/26/2023] [Indexed: 05/13/2023]
Abstract
Chronic alcohol consumption is a major risk factor for alcoholic steatohepatitis (ASH). Previous studies have shown that direct injury of hepatocytes is the key factor in its occurrence and development. However, our study shows that the role of Kupffer cells in ASH cannot be ignored. We isolated Kupffer cells from the livers of ASH mice and found that alcohol consumption induced Kupffer cell pyroptosis and increased the release of interleukin-1β (IL-1β). Furthermore, we screened the related m6A enzyme methyltransferase-like 3 (METTL3) from liver Kupffer cells, and found that silencing METTL3 alleviated inflammatory cytokine eruption by Kupffer cell pyroptosis in ASH mice. In vitro, we silenced METTL3 with lentivirus in BMDMs and RAW264.7 cells and confirmed that METTL3 could reduce pyroptosis by influencing the splicing of pri-miR-34A. Together, our results revealed a critical role of KC pyroptosis in ASH and highlighted the mechanism by which METLL3 relieves cell pyroptosis, which could be a promising therapeutic strategy for ASH.
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Affiliation(s)
- Xue-Sheng Pan
- School of Pharmacy, Anhui Medical University; Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Hefei, P.R. China
- Department of Immunology, School of Basic Medicine, Anhui Medical University, Hefei, China
| | - Bo-Wen Li
- School of Pharmacy, Anhui Medical University; Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Hefei, P.R. China
| | - Li-Li Wang
- School of Pharmacy, Anhui Medical University; Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Hefei, P.R. China
| | - Ning Li
- Department of Ophthalmology, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Hui-Min Lin
- School of Pharmacy, Anhui Medical University; Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Hefei, P.R. China
| | - Jin Zhang
- School of Pharmacy, Anhui Medical University; Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Hefei, P.R. China
| | - Na Du
- School of Pharmacy, Anhui Medical University; Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Hefei, P.R. China
| | - Yue-Qin Zhu
- Department of Pharmacy, West Branch of The First Affiliated Hospital of University of Science and Technology of China (Anhui Provincial Cancer Hospital), Hefei, China
| | - Xian Wu
- School of Pharmacy, Anhui Medical University; Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Hefei, P.R. China
| | - Cheng-Mu Hu
- School of Pharmacy, Anhui Medical University; Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Hefei, P.R. China
| | - Wen-Yong Wu
- Department of General Surgery, The Hefei Second People's Hospital, Hefei, China
| | - Hui Hou
- Department of General Surgery, The Second Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Hong-Chuan Zhao
- Department of General Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Song-Yan Liao
- Cardiology Division, Department of Medicine, Queen Mary Hospital, the University of Hong Kong, Hong Kong, China
| | - Ya-Nan Yang
- Department of Immunology, School of Basic Medicine, Anhui Medical University, Hefei, China
| | - Yan Huang
- School of Pharmacy, Anhui Medical University; Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Hefei, P.R. China
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9
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Xie Z, Hei J, Li C, Yin X, Wu F, Cheng L, Meng S. Constructing carbon supported copper-based catalysts for efficient CO 2 hydrogenation to methanol. RSC Adv 2023; 13:14554-14564. [PMID: 37188247 PMCID: PMC10177214 DOI: 10.1039/d3ra01502e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Accepted: 05/08/2023] [Indexed: 05/17/2023] Open
Abstract
An activated carbon-supported Cu/ZnO catalyst (CCZ-AE-ox) was successfully obtained by the ammonia evaporation method for the hydrogenation of carbon dioxide to methanol, and the surface properties of the catalyst post-calcination and reduction were investigated. Activated carbon facilitated the increased dispersion of the loaded metals, which promote the CO2 space-time yield (STY) of methanol and turnover frequency (TOF) on the active sites. Furthermore, the factors affecting the catalyst in the hydrogenation of CO2 to methanol were in-depth investigated. The larger surface area and higher CO2 adsorption capacity are found to make possible the main attributions of the superior activity of the CCZ-AE-ox catalyst.
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Affiliation(s)
- Zhong Xie
- Engineering Technology Research Center of Preparation and Application of Industrial Ceramics of Anhui Province, School of Chemistry and Material Engineering, Chaohu University 1 Bantang Road Chaohu 238000 P. R. China
| | - Jinpei Hei
- Engineering Technology Research Center of Preparation and Application of Industrial Ceramics of Anhui Province, School of Chemistry and Material Engineering, Chaohu University 1 Bantang Road Chaohu 238000 P. R. China
| | - Chuan Li
- Engineering Technology Research Center of Preparation and Application of Industrial Ceramics of Anhui Province, School of Chemistry and Material Engineering, Chaohu University 1 Bantang Road Chaohu 238000 P. R. China
| | - Xiaojie Yin
- Engineering Technology Research Center of Preparation and Application of Industrial Ceramics of Anhui Province, School of Chemistry and Material Engineering, Chaohu University 1 Bantang Road Chaohu 238000 P. R. China
| | - Fengyi Wu
- Engineering Technology Research Center of Preparation and Application of Industrial Ceramics of Anhui Province, School of Chemistry and Material Engineering, Chaohu University 1 Bantang Road Chaohu 238000 P. R. China
| | - Lei Cheng
- Engineering Technology Research Center of Preparation and Application of Industrial Ceramics of Anhui Province, School of Chemistry and Material Engineering, Chaohu University 1 Bantang Road Chaohu 238000 P. R. China
| | - Sugang Meng
- Key Laboratory of Green and Precise Synthetic Chemistry and Applications, Ministry of Education, Huaibei Normal University Huaibei Anhui 235000 P. R. China
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10
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Gao S, Yang G, Zhang X, Lu Y, Chen Y, Wu X, Song C. β-Cyclodextrin Polymer-Based Host-Guest Interaction and Fluorescence Enhancement of Pyrene for Sensitive Isocarbophos Detection. ACS Omega 2022; 7:12747-12752. [PMID: 35474801 PMCID: PMC9026021 DOI: 10.1021/acsomega.1c07295] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/26/2021] [Accepted: 03/09/2022] [Indexed: 05/13/2023]
Abstract
The extensive use of organophosphorus pesticides in agriculture poses a high risk to human health and has boosted the demands for developing sensitive monitoring methods. Herein, we developed a facile and sensitive method for isocarbophos detection based on the remarkable fluorescence enhancement of pyrene during host-guest interaction of β-cyclodextrin polymer (β-CDP) and pyrene. The 3'-pyrene-labeled isocarbophos aptamer could be cleaved by exonuclease I to obtain free pyrene that was tagged on mononucleotides, which could enter the hydrophobic cavity of β-CDP, resulting in a prominent fluorescence enhancement. While the target isocarbophos was added, aptamer could undergo a conformational change into a hairpin complex, which prevented the cleavage and host-guest interaction because of the steric hindrance, leading to a weak fluorescence. The isocarbophos has been sensitively and selectively analyzed by detecting the system fluorescence intensity with a detection limit as low as 1.2 μg/L. In addition, we have verified the ability of our proposed method in real sample detection from fruit extract.
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Affiliation(s)
- Shanshan Gao
- Department
of Applied Chemistry, School of Science, Anhui Agricultural University, Hefei 230036, China
| | - Gege Yang
- Department
of Applied Chemistry, School of Science, Anhui Agricultural University, Hefei 230036, China
| | - Xiaohui Zhang
- Department
of Applied Chemistry, School of Science, Anhui Agricultural University, Hefei 230036, China
| | - Ying Lu
- Department
of Applied Chemistry, School of Science, Anhui Agricultural University, Hefei 230036, China
| | - Ying Chen
- Department
of Applied Chemistry, School of Science, Anhui Agricultural University, Hefei 230036, China
| | - Xiangwei Wu
- College
of Resources and Environment, Key Laboratory of Agri-food Safety of
Anhui Province, Anhui Agricultural University, Hefei 230036, China
- E-mail:
| | - Chunxia Song
- Department
of Applied Chemistry, School of Science, Anhui Agricultural University, Hefei 230036, China
- E-mail:
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11
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Li Y, Chen J, Tang S, Zhang S, Xi Z. Biogeochemical Assessment of the Coalbed Methane Source, Migration, and Fate: A Case Study of the Shizhuangnan Block, Southern Qinshui Basin. ACS Omega 2022; 7:7715-7724. [PMID: 35284701 PMCID: PMC8908359 DOI: 10.1021/acsomega.1c06496] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Accepted: 02/11/2022] [Indexed: 06/14/2023]
Abstract
The exploration and exploitation of coalbed methane (CBM), an essential unconventional gas resource, have received much attention. In terms of shallow groundwater assessment during CBM production, biogenic methane natural formation in situ and methane migration from deep sources into shallow aquifers need to be of most concern. This study analyzes geochemical surveys including ions, isotopes, and dissolved methane concentrations in 75 CBM coproduced water samples in the southern Qinshui Basin. Most of these water samples are weakly alkaline. Some samples' negative oxidation/reduction potential (ORP) values reveal that the CBM reservoir water samples are mainly produced from reductive groundwater environments. Cl-, Na+, and HCO3 - are the dominant ionic constituents of the water samples, which are usually associated with dissolved methane concentrations. The biogeochemical parameters and isotopic features provide an opportunity to assess the origin, migration, and oxidation of biogenic or thermogenic methane. Some water samples suggest biogenic methane formation in situ characterized by negligible SO4 2- and NO3 - concentrations and low δ13CCH4. Only a few water samples indicate the migration of biogenic methane into shallow aquifers without oxidation based on elevated SO4 2-, NO3 -, and δ13CDIC and low δ13CCH4. A few cases characterized by elevated δ13CCH4, negative δ13CDIC values, and negligible SO4 2- and methane concentrations suggest the oxidation of biogenic methane rather than the migration of thermogenic methane. A significant number of cases mean methane migration to shallow aquifers. Partial oxidation of thermogenic or mixed methane is evaluated by negligible SO4 2-, NO3 -, and methane concentrations and elevated δ13CCH4. Dissolved methane isotopic compositions and aqueous biogeochemical features help study methane formation and potential migration in shallow groundwater.
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Affiliation(s)
- Yang Li
- School
of Earth and Environment, Anhui University
of Science and Technology, Huainan 232001, Anhui, China
- State
Key Laboratory of Mining Response and Disaster Prevention and Control
in Deep Coal Mines, Anhui University of
Science & Technology, Huainan 232001, Anhui, China
| | - Jian Chen
- School
of Earth and Environment, Anhui University
of Science and Technology, Huainan 232001, Anhui, China
- State
Key Laboratory of Mining Response and Disaster Prevention and Control
in Deep Coal Mines, Anhui University of
Science & Technology, Huainan 232001, Anhui, China
| | - Shuheng Tang
- School
of Energy Resource, China University of
Geosciences, Beijing 100083, China
- Key
Laboratory of Marine Reservoir Evolution and Hydrocarbon Enrichment
Mechanism, Ministry of Education, Beijing 100083, China
- Key
Laboratory of Strategy Evaluation for Shale Gas, Ministry of Land and Resources, Beijing 100083, China
| | - Songhang Zhang
- School
of Energy Resource, China University of
Geosciences, Beijing 100083, China
- Key
Laboratory of Marine Reservoir Evolution and Hydrocarbon Enrichment
Mechanism, Ministry of Education, Beijing 100083, China
- Key
Laboratory of Strategy Evaluation for Shale Gas, Ministry of Land and Resources, Beijing 100083, China
| | - Zhaodong Xi
- School
of Energy Resource, China University of
Geosciences, Beijing 100083, China
- Key
Laboratory of Marine Reservoir Evolution and Hydrocarbon Enrichment
Mechanism, Ministry of Education, Beijing 100083, China
- Key
Laboratory of Strategy Evaluation for Shale Gas, Ministry of Land and Resources, Beijing 100083, China
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12
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Gao N, Shi H, Hu S, Zha B, Yuan A, Shu J, Fan Y, Bai J, Xie H, Cui J, Wang X, Li C, Qiu B, Yang J. Acupuncture Enhances Dorsal Raphe Functional Connectivity in Knee Osteoarthritis With Chronic Pain. Front Neurol 2022; 12:813723. [PMID: 35115998 PMCID: PMC8805588 DOI: 10.3389/fneur.2021.813723] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Accepted: 12/02/2021] [Indexed: 11/13/2022] Open
Abstract
INTRODUCTION Knee osteoarthritis is a common disease in the elderly. Patients suffer from long-term chronic pain and reduced life quality. Acupuncture has been proven to be an effective treatment for KOA. However, the neural mechanism of acupuncture is unclear, so far. Periaqueductal gray (PAG) and raphe nuclei (RPN) are essential structures associated with chronic pain in human brains. This study aims to investigate functional connectivity (FC) changes of PAG and RPN in KOA to interpret the neural mechanism of acupuncture. METHODS In 15 patients with KOA and 15 healthy controls (HC), we acquired Visual Analog Scale (VAS) scores and resting-state fMRI images of each participant before and after acupuncture stimulation on EX-LE5 acupoint. Then, PAG and RPN were selected as seeds to perform FC analysis based on resting-state fMRI images. Finally, we compared FC patterns of PAG and RPN between patients with KOA and HC, then between pre-acupuncture and post-acupuncture. Correlations between FC values and VAS scores were calculated as well. RESULTS For PAG, FC of patients with KOA was lower in the right lingual gyrus at post-acupuncture compared with HC (p <0.001, uncorrected). For dorsal RPN, FC of patients with KOA was significantly higher in right putamen at post-acupuncture compared with HC (p <0.001, corrected with FDR), and FC changes were significant between pre-acupuncture and post-acupuncture in patients with KOA. Post-acupuncture FC values between dorsal RPN and right putamen were correlated with VAS scores. For medial RPN, FC of patients with KOA was lower in the right cerebellum at post-acupuncture compared with HC (p <0.001, uncorrected), but no significant FC changes were found between pre-acupuncture and post-acupuncture in patients with KOA. FC values between medial RPN and right cerebellum were not correlated with VAS scores at pre-acupuncture and post-acupuncture. DISCUSSION Our study demonstrated that acupuncture enhanced FC between dorsal RPN and the right putamen in patients with KOA, which was associated with chronic pain intensity. This result suggests that acupuncture stimulation can enhance FC between dorsal raphe and striatum, illustrating a neural mechanism that acupuncture can drive the patients' brain, with KOA, to perceive pain.
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Affiliation(s)
- Nan Gao
- Center for Biomedical Imaging, University of Science and Technology of China, Hefei, China
| | - Haiping Shi
- First Affiliated Hospital of Anhui University of Traditional Chinese Medicine, Hefei, China
| | - Sheng Hu
- Center for Biomedical Imaging, University of Science and Technology of China, Hefei, China
- School of Medical Information Engineering, Anhui University of Chinese Medicine, Hefei, China
| | - Bixiang Zha
- First Affiliated Hospital of Anhui University of Traditional Chinese Medicine, Hefei, China
| | - Aihong Yuan
- First Affiliated Hospital of Anhui University of Traditional Chinese Medicine, Hefei, China
| | - Jianhua Shu
- School of Medical Information Engineering, Anhui University of Chinese Medicine, Hefei, China
| | - Yinqiu Fan
- First Affiliated Hospital of Anhui University of Traditional Chinese Medicine, Hefei, China
| | - Jin Bai
- First Affiliated Hospital of Anhui University of Traditional Chinese Medicine, Hefei, China
| | - Hongyu Xie
- First Affiliated Hospital of Anhui University of Traditional Chinese Medicine, Hefei, China
| | | | - Xiaoxiao Wang
- Center for Biomedical Imaging, University of Science and Technology of China, Hefei, China
| | - Chuanfu Li
- First Affiliated Hospital of Anhui University of Traditional Chinese Medicine, Hefei, China
| | - Bensheng Qiu
- Center for Biomedical Imaging, University of Science and Technology of China, Hefei, China
| | - Jun Yang
- First Affiliated Hospital of Anhui University of Traditional Chinese Medicine, Hefei, China
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