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Hao H, Xu Y, Chen R, Qi S, Liu X, Lin B, Chen X, Zhang X, Yue L, Chen C. Protective effects of chlorogenic acid against cyclophosphamide induced liver injury in mice. Biotech Histochem 2024; 99:33-43. [PMID: 38018995 DOI: 10.1080/10520295.2023.2287452] [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: 11/30/2023] Open
Abstract
We investigated possible protective effects of chlorogenic acid (CGA) against cyclophosphamide (CP) induced hepatic injury in mice. We measured aminotransferase alanine transaminase (ALT) and aspartate transaminase (AST) levels in the serum. We assayed catalase (CAT), superoxide dismutase (SOD), reduced glutathione (GSH), glutathione peroxidase (GSH-Px) and malondialdehyde (MDA) in hepatic tissue. We assessed expression of nuclear transcription factor 2 (Nrf2) and Kelch sample related protein-1 (keap1) proteins in hepatic tissues using immunohistochemistry. The relative mRNA expression levels of heme oxygenase-1 (HO-1), NADH quinone oxidoreductase 1 (NQO1), tumor necrosis factor-α (TNF-α) and interleukin-6 (IL-6) were determined using quantitative real-time polymerase chain reaction (qRT-PCR). Hematoxylin & eosin staining was used to assess liver histopathology. We found that administration of CGA prior to induction of injury by CP decreased serum ALT, AST and MDA expressions in hepatic tissue, while CAT, SOD, GSH and GSH-Px concentrations were increased. We found that hepatocytes of animals administered CGA gradually returned to normal morphology. CGA increased the protein expression of Nrf2 in murine hepatic tissue. Administration of CGA up-regulated mRNA expression levels of HO-1, NQO1, TNF-α and IL-6 in hepatic tissue. CGA exhibited a marked protective effect on CP induced liver injury in mice.
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Affiliation(s)
- Hao Hao
- Shaanxi Province Key Laboratory of Bio-Resources/QinLing-Bashan Mountains Bioresources Comprehensive Development C. I. C./Qinba State Key Laboratory of Biological Resources and Ecological Environment, Shaanxi University of Technology, Hanzhong, Shaanxi, China
| | - Youmei Xu
- Shaanxi Province Key Laboratory of Bio-Resources/QinLing-Bashan Mountains Bioresources Comprehensive Development C. I. C./Qinba State Key Laboratory of Biological Resources and Ecological Environment, Shaanxi University of Technology, Hanzhong, Shaanxi, China
| | - Rui Chen
- Shaanxi Province Key Laboratory of Bio-Resources/QinLing-Bashan Mountains Bioresources Comprehensive Development C. I. C./Qinba State Key Laboratory of Biological Resources and Ecological Environment, Shaanxi University of Technology, Hanzhong, Shaanxi, China
| | - Shanshan Qi
- Shaanxi Province Key Laboratory of Bio-Resources/QinLing-Bashan Mountains Bioresources Comprehensive Development C. I. C./Qinba State Key Laboratory of Biological Resources and Ecological Environment, Shaanxi University of Technology, Hanzhong, Shaanxi, China
| | - Xiang Liu
- Shaanxi Province Key Laboratory of Bio-Resources/QinLing-Bashan Mountains Bioresources Comprehensive Development C. I. C./Qinba State Key Laboratory of Biological Resources and Ecological Environment, Shaanxi University of Technology, Hanzhong, Shaanxi, China
| | - Beibei Lin
- Shaanxi Province Key Laboratory of Bio-Resources/QinLing-Bashan Mountains Bioresources Comprehensive Development C. I. C./Qinba State Key Laboratory of Biological Resources and Ecological Environment, Shaanxi University of Technology, Hanzhong, Shaanxi, China
| | - Xiaohua Chen
- Shaanxi Province Key Laboratory of Bio-Resources/QinLing-Bashan Mountains Bioresources Comprehensive Development C. I. C./Qinba State Key Laboratory of Biological Resources and Ecological Environment, Shaanxi University of Technology, Hanzhong, Shaanxi, China
| | - Xiaoying Zhang
- Shaanxi Province Key Laboratory of Bio-Resources/QinLing-Bashan Mountains Bioresources Comprehensive Development C. I. C./Qinba State Key Laboratory of Biological Resources and Ecological Environment, Shaanxi University of Technology, Hanzhong, Shaanxi, China
| | - Lijuan Yue
- Department of Oncology, Hanzhong Central Hospital, Hanzhong, Shaanxi, China
| | - Chen Chen
- Shaanxi Province Key Laboratory of Bio-Resources/QinLing-Bashan Mountains Bioresources Comprehensive Development C. I. C./Qinba State Key Laboratory of Biological Resources and Ecological Environment, Shaanxi University of Technology, Hanzhong, Shaanxi, China
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Chen C, Xie J, Gang J, Wang M, Wu K, Jiang A. Metabolomic insights into the browning inhibition of fresh-cut apple by hydrogen sulfide. Food Chem 2024; 447:139005. [PMID: 38507948 DOI: 10.1016/j.foodchem.2024.139005] [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: 11/26/2023] [Revised: 03/01/2024] [Accepted: 03/09/2024] [Indexed: 03/22/2024]
Abstract
Hydrogen sulfide (H2S) is known to effectively inhibit the browning of fresh-cut apples, but the mechanism at a metabolic level remains unclear. Herein, non-targeted metabolomics was used to analyze metabolic changes in surface and internal tissues of fresh-cut apple after H2S treatment. The results showed that prenol lipids were the most up-accumulated differential metabolites in both surface and inner tissue of fresh-cut apple during browning process, which significantly down-accumulated by H2S treatment. H2S treatment reduced the consumption of amino acid in surface tissue. Regarding inner tissue, H2S activated defense response through accumulation of lysophospholipid signaling and induced the biosynthesis of phenolic compounds. We therefore propose that H2S inhibited the surface browning of fresh-cut apple by reducing the accumulation of prenol lipids, directly delaying amino acid consumption in surface tissue and indirectly regulating defense response in inner tissue, which provides fundamental insights into browning inhibition mechanisms by H2S.
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Affiliation(s)
- Chen Chen
- Key Laboratory of Biotechnology and Bioresources Utilization, Ministry of Education, College of Life Science, Dalian Minzu University, Dalian 116600, China
| | - Jiani Xie
- Key Laboratory of Biotechnology and Bioresources Utilization, Ministry of Education, College of Life Science, Dalian Minzu University, Dalian 116600, China
| | - Jie Gang
- Key Laboratory of Biotechnology and Bioresources Utilization, Ministry of Education, College of Life Science, Dalian Minzu University, Dalian 116600, China
| | - Mingyu Wang
- Key Laboratory of Biotechnology and Bioresources Utilization, Ministry of Education, College of Life Science, Dalian Minzu University, Dalian 116600, China
| | - Ke Wu
- Key Laboratory of Biotechnology and Bioresources Utilization, Ministry of Education, College of Life Science, Dalian Minzu University, Dalian 116600, China
| | - Aili Jiang
- Key Laboratory of Biotechnology and Bioresources Utilization, Ministry of Education, College of Life Science, Dalian Minzu University, Dalian 116600, China.
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Bai X, Wang S, Shu L, Cao Q, Hu H, Zhu Y, Chen C. Hawthorn leaf flavonoids alleviate the deterioration of atherosclerosis by inhibiting SCAP-SREBP2-LDLR pathway through sPLA2-ⅡA signaling in macrophages in mice. J Ethnopharmacol 2024; 327:118006. [PMID: 38442806 DOI: 10.1016/j.jep.2024.118006] [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: 01/04/2024] [Revised: 02/23/2024] [Accepted: 03/01/2024] [Indexed: 03/07/2024]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Hawthorn leaves are a combination of the dried leaves of the Rosaceae plants, i.e., Crataegus pinnatifida Bge. or Crataegus pinnatifida Bge. var. major N. E. Br., is primarily cultivated in East Asia, North America, and Europe. hawthorn leaf flavonoids (HLF) are the main part of extraction. The HLF have demonstrated potential in preventing hypertension, inflammation, hyperlipidemia, and atherosclerosis. However, the potential pharmacological mechanism behind its anti-atherosclerotic effect has yet to be explored. AIM OF THE STUDY The in vivo and in vitro effects of HLF on lipid-mediated foam cell formation were investigated, with a specific focus on the levels of secreted phospholipase A2 type IIA (sPLA2-II A) in macrophage cells. MATERIALS AND METHODS The primary constituents of HLF were analyzed using ultra-high performance liquid chromatography and liquid chromatography-tandem mass spectrometry. In vivo, HLF, at concentrations of 5 mg/kg, 20 mg/kg, and 40 mg/kg, were administered to apolipoprotein E knockout mice (ApoE-/-) fed by high-fat diet (HFD) for 16 weeks. Aorta and serum samples were collected to identify lesion areas and lipids through mass spectrometry analysis to dissect the pathological process. RAW264.7 cells were incubated with oxidized low-density lipoprotein (ox-LDL) alone, or ox-LDL combined with different doses of HLF (100, 50, and 25 μg/ml), or ox-LDL plus 24-h sPLA2-IIA inhibitors, for cell biology analysis. Lipids and inflammatory cytokines were detected using biochemical analyzers and ELISA, while plaque size and collagen content of plaque were assessed by HE and the Masson staining of the aorta. The lipid deposition in macrophages was observed by Oil Red O staining. The expression of sPLA2-IIA and SCAP-SREBP2-LDLR was determined by RT-qPCR and Western blot analysis. RESULTS The chemical profile of HLF was studied using UPLC-Q-TOF-MS/MS, allowing the tentative identification of 20 compounds, comprising 1 phenolic acid, 9 flavonols and 10 flavones, including isovitexin, vitexin-4″-O-glucoside, quercetin-3-O-robibioside, rutin, vitexin-2″-O-rhamnoside, quercetin, etc. HLF decreased total cholesterol (TC), triglycerides (TG), low-density lipoprotein cholesterol (LDL-C), and non-high-density lipoprotein cholesterol (non-HDL-C) levels in ApoE-/- mice (P < 0.05), reduced ox-LDL uptake, inhibited level of inflammatory factors, such as IL-6, IL-8, TNF-α, and IL-1ꞵ (P < 0.001), and alleviated aortic plaques with a thicker fibrous cap. HLF effectively attenuated foam cell formation in ox-LDL-treated RAW264.7 macrophages, and reduced levels of intracellular TC, free cholesterol (FC), cholesteryl ester (CE), IL-6, TNF-α, and IL-1β (P < 0.001). In both in vivo and in vitro experiments, HLF significantly downregulated the expression of sPLA2-IIA, SCAP, SREBP2, LDLR, HMGCR, and LOX-1 (P < 0.05). Furthermore, sPLA2-IIA inhibitor effectively mitigated inflammatory release in RAW264.7 macrophages and regulated SCAP-SREBP2-LDLR signaling pathway by inhibiting sPLA2-IIA secretion (P < 0.05). CONCLUSION HLF exerted a protective effect against atherosclerosis through inhibiting sPLA2-IIA to diminish SCAP-SREBP2-LDLR signaling pathway, to reduce LDL uptake caused foam cell formation, and to slow down the progression of atherosclerosis in mice.
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Affiliation(s)
- Xufeng Bai
- College of Pharmacy, Jiangxi University of Chinese Medicine, Nanchang, 330004, China
| | - Shuwen Wang
- College of Pharmacy, Jiangxi University of Chinese Medicine, Nanchang, 330004, China
| | - Limei Shu
- College of Pharmacy, Jiangxi University of Chinese Medicine, Nanchang, 330004, China
| | - Qingyu Cao
- College of Pharmacy, Nanchang Medical College, Nanchang, Jiangxi, 330052, China
| | - Huiming Hu
- College of Pharmacy, Nanchang Medical College, Nanchang, Jiangxi, 330052, China; Key Laboratory of Pharmacodynamics and Quality Evaluation on Anti-Inflammatory Chinese Herbs, Jiangxi Administration of Traditional Chinese Medicine, Jiangxi, 330052, China; School of Biomedical Sciences, University of Queensland, St Lucia, Brisbane, Queensland, 4072, Australia.
| | - Yanchen Zhu
- College of Computer Science, Jiangxi University of Chinese Medicine, Nanchang, Jiangxi, 330004, China.
| | - Chen Chen
- School of Biomedical Sciences, University of Queensland, St Lucia, Brisbane, Queensland, 4072, Australia.
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Han S, Chen C, Chen C, Wang J, Zhao X, Wang X, Lv X, Jia Z, Hou J. Sandwich-like CuNPs@AgNPs@PSB SERS substrates for sensitive detection of R6G and Forchlorfenuron. Spectrochim Acta A Mol Biomol Spectrosc 2024; 314:124178. [PMID: 38565050 DOI: 10.1016/j.saa.2024.124178] [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: 12/02/2023] [Revised: 02/14/2024] [Accepted: 03/18/2024] [Indexed: 04/04/2024]
Abstract
The development of a highly sensitive, synthetically simple and economical SERS substrate is technically very important. A fast, economical, sensitive and reproducible CuNPs@AgNPs@ Porous silicon Bragg reflector (PSB) SERS substrate was prepared by electrochemical etching and in situ reduction method. The developed CuNPs@AgNPs@PSB has a large specific surface area and abundant "hot spot" region, which makes the SERS performance excellent. Meanwhile, the successful synthesis of CuNPs@AgNPs can not only modulate the plasmon resonance properties of nanoparticles, but also effectively prolong the time stability of Cu nanoparticles. The basic performance of the substrate was evaluated using rhodamine 6G (R6G). (Detection limit reached 10-15 M, R2 = 0.9882, RSD = 5.3 %) The detection limit of Forchlorfenuron was 10 μg/L. The standard curve with a regression coefficient of 0.979 was established in the low concentration range of 10 μg/L -100 μg/L. This indicates that the prepared substrates can accomplish the detection of pesticide residues in the low concentration range. The prepared high-performance and high-sensitivity SERS substrate have a very promising application in detection technology.
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Affiliation(s)
- Shibin Han
- School of Physical Science and Technology, Xinjiang University, Urumqi 830046, China
| | - Cheng Chen
- College of Software, Xinjiang University, Urumqi 830046, China
| | - Chen Chen
- College of Information Science and Engineering, Xinjiang University, Urumqi 830046, China
| | - Jiajia Wang
- College of Information Science and Engineering, Xinjiang University, Urumqi 830046, China
| | - Xin Zhao
- School of Physical Science and Technology, Xinjiang University, Urumqi 830046, China
| | - Xuehua Wang
- School of Physical Science and Technology, Xinjiang University, Urumqi 830046, China
| | - Xiaoyi Lv
- College of Information Science and Engineering, Xinjiang University, Urumqi 830046, China; The Key Laboratory of Signal Detection and Processing, Xinjiang Uygur Autonomous Region, Xinjiang University, Urumqi 840046, China.
| | - Zhenhong Jia
- College of Information Science and Engineering, Xinjiang University, Urumqi 830046, China; The Key Laboratory of Signal Detection and Processing, Xinjiang Uygur Autonomous Region, Xinjiang University, Urumqi 840046, China.
| | - Junwei Hou
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum-Beijing at Karamay, Karamay 834000, China.
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Feng L, Wang H, Chen C, Fu J, Zhao L, Zhao X, Geng M, Ren M, Tong L, Li Y, Gu J, Wang C. MKP1 may be involved in the occurrence of depression by regulating hippocampal autophagy in rats. Behav Brain Res 2024; 465:114962. [PMID: 38499157 DOI: 10.1016/j.bbr.2024.114962] [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: 11/09/2023] [Revised: 03/12/2024] [Accepted: 03/15/2024] [Indexed: 03/20/2024]
Abstract
BACKGROUND Mitogen-activated protein kinase (MAPK) phosphatase-1 (MKP1) is upregulated in the hippocampus of patients with depression, while pharmacological inhibition of hippocampal MKP1 can mitigate depression-like behaviors in rodents. In addition, MAPK signaling regulates autophagy, and antidepressants were recently shown to target autophagic signaling pathways. We speculated that MKP1 contributes to depression by enhancing hippocampal autophagy through dephosphorylation of the MAPK isoform ERK1/2. METHODS We established a rat depression model by exposure to chronic unpredictable mild stress (CUMS), and then examined depression-like behaviors in the sucrose preference test (SPT) and forced swimming test (FST) as well as expression changes in hippocampal MKP1, ERK1/2, phosphorylated ERK1/2, and autophagy-related proteins LC3II by Western blotting and immunostaining. These same measurements were repeated in rats exposed to CUMS following hippocampal infusion of a MKP1-targeted shRNA. Finally, the effects of MKP1 expression level on autophagy we examined in rat GMI-R1 microglia. RESULTS CUMS-exposed rats demonstrated anhedonia in the SPT and helplessness in the FST, two core depression-like behaviors. Expression levels of MKP1 and LC3II were upregulated in the hippocampus of CUMS rats, suggesting enhanced autophagy, while pERK/ERK was downregulated. Knockdown of hippocampal MKP1 mitigated depression-like behaviors, downregulated hippocampal LC3II expression, and upregulated hippocampal pERK/ERK. Similarly, MKP1 knockdown in GMI-R1 cells upregulated pERK/ERK and reduced the number of LC3II autophagosomes, while MKP1 overexpression had the opposite effects. CONCLUSION Enhanced hippocampal autophagy via MKP1-mediated ERK dephosphorylation may contribute to the development of depression.
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Affiliation(s)
- Laipeng Feng
- Henan Mental Hospital, The Second Affiliated Hospital of Xinxiang Medical University, Xinxiang, China; Henan Key Lab of Biological Psychiatry of Xinxiang Medical University, Xinxiang, China
| | - Huiying Wang
- Henan Mental Hospital, The Second Affiliated Hospital of Xinxiang Medical University, Xinxiang, China; Henan Key Lab of Biological Psychiatry of Xinxiang Medical University, Xinxiang, China
| | - Chen Chen
- Henan Mental Hospital, The Second Affiliated Hospital of Xinxiang Medical University, Xinxiang, China
| | - Jiacheng Fu
- Henan Mental Hospital, The Second Affiliated Hospital of Xinxiang Medical University, Xinxiang, China; Henan Key Lab of Biological Psychiatry of Xinxiang Medical University, Xinxiang, China
| | - Liqin Zhao
- Henan Mental Hospital, The Second Affiliated Hospital of Xinxiang Medical University, Xinxiang, China
| | - Xia Zhao
- The Affiliated Mental Health Center of Jiangnan University, Wuxi Central Rehabilitation Hospital, Wuxi, China
| | - Mengjun Geng
- Henan Mental Hospital, The Second Affiliated Hospital of Xinxiang Medical University, Xinxiang, China
| | - Mengdi Ren
- Henan Mental Hospital, The Second Affiliated Hospital of Xinxiang Medical University, Xinxiang, China; Henan Key Lab of Biological Psychiatry of Xinxiang Medical University, Xinxiang, China
| | - Lidan Tong
- Henan Mental Hospital, The Second Affiliated Hospital of Xinxiang Medical University, Xinxiang, China; Henan Key Lab of Biological Psychiatry of Xinxiang Medical University, Xinxiang, China
| | - Yan Li
- Zhengzhou University, Zhengzhou, China
| | - Jingyang Gu
- Chaohu Hospital of Anhui Medical University, Hefei, China.
| | - Changhong Wang
- Henan Mental Hospital, The Second Affiliated Hospital of Xinxiang Medical University, Xinxiang, China; Henan Key Lab of Biological Psychiatry of Xinxiang Medical University, Xinxiang, China.
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Ding S, Liang Y, Wang M, Hu R, Song Z, Xu X, Zheng L, Shen Z, Chen C. Less is more: A new strategy combining nanomaterials and PGPB to promote plant growth and phytoremediation in contaminated soil. J Hazard Mater 2024; 469:134110. [PMID: 38522194 DOI: 10.1016/j.jhazmat.2024.134110] [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: 01/10/2024] [Revised: 02/28/2024] [Accepted: 03/21/2024] [Indexed: 03/26/2024]
Abstract
Novel combination strategies of nanomaterials (NMs) and plant growth-promoting bacteria (PGPB) may facilitate soil remediation and plant growth. However, the efficiency of the NM-PGPB combination and interactions among NMs, PGPB, and plants are still largely unknown. We used multiwalled carbon nanotubes (MWCNTs) and zero-valent iron (nZVI) combined with Bacillus sp. PGP5 to enhance the phytoremediation efficiency of Solanum nigrum on heavy metal (HM)-contaminated soil. The NM-PGPB combination showed the best promoting effect on plant growth, which also had synergistic effects on the bioaccumulation of HMs in S. nigrum. The MWCNT-PGP5 combination increased the Cd, Pb, and Zn removal efficiency of S. nigrum by 62.03%, 69.44%, and 61.31%, respectively. The underlining causes of improved plant growth and phytoremediation by NMs-PGPB combination were further elucidated. NM application promoted PGPB survival in soil. Compared with each single application, the combined application minimized disturbance to plant transcription levels and rhizosphere microbial community, resulting in the best performance on soil remediation and plant growth. The NM-PGPB-induced changes in the microbial community and root gene expression were necessary for plant growth promotion. This work reveals the "less is more" advantage of the NM-PGPB combination in soil remediation, providing a new strategy for soil management.
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Affiliation(s)
- Shifeng Ding
- College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Yinping Liang
- College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Mingshuo Wang
- College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Ruoning Hu
- College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Zhengguo Song
- Department of Materials and Environmental Engineering, Shantou University, Shantou 515063, Guangdong, China
| | - Xiaohong Xu
- College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Luqing Zheng
- College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China; Jiangsu Collaborative Innovation Centre for Solid Organic Waste Resource Utilization, Nanjing Agricultural University, Nanjing 210095, China
| | - Zhenguo Shen
- College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China; Jiangsu Collaborative Innovation Centre for Solid Organic Waste Resource Utilization, Nanjing Agricultural University, Nanjing 210095, China
| | - Chen Chen
- College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China; Jiangsu Collaborative Innovation Centre for Solid Organic Waste Resource Utilization, Nanjing Agricultural University, Nanjing 210095, China.
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Chen C, Zhou Y, Xu JY, Song HY, Yin XW, Gu ZJ. Effect of peer support interventions in patients with type 2 diabetes: A systematic review. Patient Educ Couns 2024; 122:108172. [PMID: 38320444 DOI: 10.1016/j.pec.2024.108172] [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: 07/17/2023] [Revised: 01/20/2024] [Accepted: 01/22/2024] [Indexed: 02/08/2024]
Abstract
OBJECTIVE This study aims to assess the effectiveness of a peer support intervention on the quality of life (QOL), self-management, self-efficacy, glycated hemoglobin (HbA1c), and depression in patients with type 2 diabetes mellitus (T2DM). METHODS A systematic review was conducted by searching 10 databases, namely PubMed, The Cochrane Library, Embase, Medline, CINHAL, Web of Science, Sinomed, CNKI, WanFang Data, and VIP for articles published from January 1974 to April 2023. RESULTS A total of 12 studies were included. A narrative synthesis of the results showed that peer support significantly improved QOL, self-management, self-efficacy, and HbA1c control in patients with T2DM, but had no significant effect on depression. CONCLUSION Peer support is an effective intervention for individuals with T2DM. Future research should focus on more rigorously designed and larger-sample studies. PRACTICE IMPLICATIONS Peer support proves to be effective for managing patients with T2DM. Current peer support interventions can provide valuable ideas that can guide the direction of future research.
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Affiliation(s)
- Chen Chen
- School of Nursing, Nanjing Medical University, Nanjing, China
| | - Yuan Zhou
- School of Nursing, Nanjing Medical University, Nanjing, China
| | - Jia-Yi Xu
- School of Nursing, Nanjing University of Chinese Medicine, Nanjing, China
| | - Hai-Yan Song
- School of Nursing, Nanjing University of Chinese Medicine, Nanjing, China
| | - Xu-Wen Yin
- School of Nursing, Nanjing University of Chinese Medicine, Nanjing, China
| | - Ze-Juan Gu
- School of Nursing, Nanjing Medical University, Nanjing, China; The First Affiliated Hospital of Nanjing Medical University, Nanjing, China.
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Chen C, Ye PP, Cui FJ, Tan M, Zhang HB, Zhou TL, Shi JC, Shu XQ, Chen ZW. Overall quality changes and deterioration mechanism of fragrant rapeseed oils during 6-Month storage. Food Chem 2024; 439:138116. [PMID: 38064830 DOI: 10.1016/j.foodchem.2023.138116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Revised: 11/27/2023] [Accepted: 11/28/2023] [Indexed: 01/10/2024]
Abstract
The strong-fragrant rapeseed oil (SFRO) is a popular rapeseed oil in China with a low refining degree only degumming with hot water, which remarkably affects its storage stability. The present study compared the overall changes of physical/chemical/nutrient quality of FROs at various temperatures, light wavelengths and headspace volumes. Results showed that red light (680 nm) had a most significant adverse effect on the overall quality of SFRO with the higher correlation coefficients to PV and TOTOX of 0.71 and 0.70, and lower correlation coefficients to chlorophyll and tocopherol of -0.95 and -0.53, respectively. Further studies revealed that red light accelerated the oxidation of fragrant rapeseed oils by degrading chlorophyll to initiate the photo-oxidation process and synthesize high amount of secondary oxidation products including aliphatic and aromatic oxidized compounds from linolenic acid. These findings provided a reference to control the deterioration of FROs by preventing the transmittance of red light.
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Affiliation(s)
- Chen Chen
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Ping-Ping Ye
- Jiangsu Hefeng Grain and Oil Industry Co., Ltd., Yancheng 212002, PR China; Yancheng Hengxi Biotechnology Co., Ltd., Yancheng 224100, PR China; Jiangsu Jiafeng Grain and Oil Industry Co., Ltd., Yancheng 224100, PR China
| | - Feng-Jie Cui
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, PR China.
| | - Ming Tan
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Hai-Bo Zhang
- Jiangsu Hefeng Grain and Oil Industry Co., Ltd., Yancheng 212002, PR China; Yancheng Hengxi Biotechnology Co., Ltd., Yancheng 224100, PR China; Jiangsu Jiafeng Grain and Oil Industry Co., Ltd., Yancheng 224100, PR China
| | - Tong-Lin Zhou
- Jiangsu Hefeng Grain and Oil Industry Co., Ltd., Yancheng 212002, PR China; Yancheng Hengxi Biotechnology Co., Ltd., Yancheng 224100, PR China; Jiangsu Jiafeng Grain and Oil Industry Co., Ltd., Yancheng 224100, PR China
| | - Jian-Cheng Shi
- Jiangsu Hefeng Grain and Oil Industry Co., Ltd., Yancheng 212002, PR China; Jiangsu Jiafeng Grain and Oil Industry Co., Ltd., Yancheng 224100, PR China
| | - Xue-Quan Shu
- Jiangsu Hefeng Grain and Oil Industry Co., Ltd., Yancheng 212002, PR China; Jiangsu Jiafeng Grain and Oil Industry Co., Ltd., Yancheng 224100, PR China
| | - Zhi-Wei Chen
- Jiangsu Hefeng Grain and Oil Industry Co., Ltd., Yancheng 212002, PR China; Jiangsu Jiafeng Grain and Oil Industry Co., Ltd., Yancheng 224100, PR China.
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Wu W, Yi L, Zhang K, Chen Z, Shi C, Chen C, Cai Y, Hu L, Chen X. Health-related quality of life measurements in children and adolescents with refractive errors: A scoping review. Adv Ophthalmol Pract Res 2024; 4:84-94. [PMID: 38623588 PMCID: PMC11016581 DOI: 10.1016/j.aopr.2024.03.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Revised: 02/23/2024] [Accepted: 03/05/2024] [Indexed: 04/17/2024]
Abstract
Background Refractive errors, particularly myopia, are the leading visual disorders worldwide, significantly affecting the quality of life (QOL) even after correction. This scoping review focuses on health-related quality of life (HRQOL) measurements for children and adolescents with refractive errors. Main text We explored generic and disease-specific HRQOL tools, examining their content, psychometric properties, and the impact of various interventions on QOL. Two English databases-PubMed, Embase, and one Chinese database, CNKI, were searched for relevant studies published from January 2001 to October 2023. Inclusion criteria encompassed studies using standardized instruments to assess the QOL of children aged 0-18 with refractive errors. The review compares prevalent HRQOL measurements, analyzes children's refractive error assessments, and discusses intervention effects on patient QOL. Conclusions The study underlines the necessity of developing disease-specific QOL instruments for very young children and serves as a practical guide for researchers in this field. The findings advocate for a targeted approach in HRQOL assessment among the pediatric population, identifying critical gaps in current methodologies.
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Affiliation(s)
- Wei Wu
- Eye Center of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
- Zhejiang Provincial Key Lab of Ophthalmology, the Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - Lisha Yi
- Department of Nephrology, Children’s Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, China
- School of Chemistry and Molecular Biosciences, The University of Queensland, St Lucia, Queensland, Australia
- School of Biomedical Sciences, University of Queensland, St Lucia Campus, Brisbane, Australia
| | - Kai Zhang
- Zhejiang Provincial Key Lab of Ophthalmology, the Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - Zipei Chen
- Department of Nephrology, Children’s Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, China
| | - Caiping Shi
- Department of Nephrology, Children’s Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, China
| | - Chen Chen
- School of Biomedical Sciences, University of Queensland, St Lucia Campus, Brisbane, Australia
| | - Yilu Cai
- Department of Nephrology, Children’s Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, China
| | - Lidan Hu
- Department of Nephrology, Children’s Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, China
| | - Xiangjun Chen
- Eye Center of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
- Institute of Translational Medicine, Zhejiang University School of Medicine, Hangzhou, China
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10
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Ai H, Cao Z, Lu H, Chen C, Ma J, Zhou P, Kim TK, Hui P, Wang L. Dream360: Diverse and Immersive Outdoor Virtual Scene Creation via Transformer-Based 360° Image Outpainting. IEEE Trans Vis Comput Graph 2024; 30:2734-2744. [PMID: 38437117 DOI: 10.1109/tvcg.2024.3372085] [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] [Indexed: 03/06/2024]
Abstract
360° images, with a field-of-view (FoV) of $180^{\circ}\times 360^{\circ}$, provide immersive and realistic environments for emerging virtual reality (VR) applications, such as virtual tourism, where users desire to create diverse panoramic scenes from a narrow FoV photo they take from a viewpoint via portable devices. It thus brings us to a technical challenge: 'How to allow the users to freely create diverse and immersive virtual scenes from a narrow FoV image with a specified viewport?' To this end, we propose a transformer-based 360° image outpainting framework called Dream360, which can generate diverse, high-fidelity, and high-resolution panoramas from user-selected viewports, considering the spherical properties of 360° images. Compared with existing methods, e.g., [3], which primarily focus on inputs with rectangular masks and central locations while overlooking the spherical property of 360° images, our Dream360 offers higher outpainting flexibility and fidelity based on the spherical representation. Dream360 comprises two key learning stages: (I) codebook-based panorama outpainting via Spherical-VQGAN (S-VQGAN), and (II) frequency-aware refinement with a novel frequency-aware consistency loss. Specifically, S-VQGAN learns a sphere-specific codebook from spherical harmonic (SH) values, providing a better representation of spherical data distribution for scene modeling. The frequency-aware refinement matches the resolution and further improves the semantic consistency and visual fidelity of the generated results. Our Dream360 achieves significantly lower Frechet Inception Distance (FID) scores and better visual fidelity than existing methods. We also conducted a user study involving 15 participants to interactively evaluate the quality of the generated results in VR, demonstrating the flexibility and superiority of our Dream360 framework.
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11
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Liu Y, Bao H, Chen C, Cao W, Zhang X, Xu Y, Ngo HH, Liu Q. Recovery of biochar particles laden with lead in saturated porous media by DC electric field. Chemosphere 2024; 355:141890. [PMID: 38575085 DOI: 10.1016/j.chemosphere.2024.141890] [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: 03/11/2023] [Revised: 11/24/2023] [Accepted: 04/01/2024] [Indexed: 04/06/2024]
Abstract
The co-transport behavior of environmental pollutants with biochar particles has aroused great interests from researchers due to the concerns about pollutant diffusion and environmental exposure after biochar is applied to soil. In this work, the recovery and co-transport behavior of biochar micron-/nano-particles (BCMP and BCNP) and lead (Pb2+) in saturated porous media were investigated under different ionic strength conditions (IS = 1, 5 and 10 mM) under a direct current electric field. The results showed that the electric field could significantly enhance the mobility of Pb adsorbed biochar particles, particularly BCNP. The recovery of Pb laden biochar particles was improved by 1.8 folds, reaching 78.8% at maximum under favorable condition at +0.5 V cm-1. According to the CDE (Convection-Dispersion-Equation) model and DLVO (Derjaguin-Landau-Verwey-Overbeek) theory analysis, the electric field facilitated the transport of Pb carried biochar mainly by increasing the negative charges on biochar surface and improving the repulsive force between biochar and porous media. High IS was favorable for biochar transport under the electric field, but inhibited desorbing Pb2+ from biochar (18% by maximum at IS = 10 mM). By switching the electric field power, a two-stage strategy was established to maximize the recovery of both biochar particles and Pb, where BCNP and Pb recovery were higher than electric field free case by 90% and 35%, respectively. The findings of this study can help build a biochar recovery approach to prevent potential risks from biochar application in heavy metal contaminated soil remediation.
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Affiliation(s)
- Yangyang Liu
- School of Environmental and Chemical Engineering, Shanghai University, No. 99 Shangda Road, Shanghai, 200444, China
| | - Hongjia Bao
- School of Environmental and Chemical Engineering, Shanghai University, No. 99 Shangda Road, Shanghai, 200444, China
| | - Chen Chen
- School of Environmental and Chemical Engineering, Shanghai University, No. 99 Shangda Road, Shanghai, 200444, China
| | - Weimin Cao
- College of Sciences, Shanghai University, No. 99 Shangda Rd., Shanghai, 200444, China
| | - Xiaolei Zhang
- School of Environmental and Chemical Engineering, Shanghai University, No. 99 Shangda Road, Shanghai, 200444, China.
| | - Yunfeng Xu
- School of Environmental and Chemical Engineering, Shanghai University, No. 99 Shangda Road, Shanghai, 200444, China
| | - Huu Hao Ngo
- School of Civil and Environmental Engineering, University of Technology Sydney, Sydney, NWS, 2007, Australia
| | - Qiang Liu
- School of Environmental and Chemical Engineering, Shanghai University, No. 99 Shangda Road, Shanghai, 200444, China.
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12
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Zhang J, Chen P, Hu F, Chen C, Song L. Porous structure design and properties of dental implants. Comput Methods Biomech Biomed Engin 2024; 27:717-726. [PMID: 37053006 DOI: 10.1080/10255842.2023.2199901] [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: 02/08/2023] [Accepted: 04/02/2023] [Indexed: 04/14/2023]
Abstract
At present, selective laser melting (SLM) 3D printing technology can accurately control the internal pore structure and complex cell shape. Three types of reticulated meshes with cubic, G7 and composite structure cell shapes were fabricated by the SLM 3D printing technology using Ti-6Al-4V alloy powders. The bone stresses around the implant and the stresses in the implant were analyzed by ANSYS finite element software, which comprehensively evaluated the effect of porous dental implants with different spatial porosity characteristics on osseointegration. The results show that porous dental implants with composite structure of pore characteristics have improved mechanical and biological properties and can better promote the growth and integration of bone tissue.
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Affiliation(s)
- Jianguo Zhang
- School of mechanical engineering, Shanghai Institute of Technology, Shanghai, China
| | - Peng Chen
- School of mechanical engineering, Shanghai Institute of Technology, Shanghai, China
| | - Fengling Hu
- Department of Stomatology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Chen Chen
- School of mechanical engineering, Shanghai Institute of Technology, Shanghai, China
| | - Liang Song
- Department of Stomatology, Shanghai Fifth People's Hospital, Fudan University, Shanghai, China
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13
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Wang P, Chen C, Shan M. Vincamine alleviates brain injury by attenuating neuroinflammation and oxidative damage in a mouse model of Parkinson's disease through the NF-κB and Nrf2/HO-1 signaling pathways. J Biochem Mol Toxicol 2024; 38:e23714. [PMID: 38629493 DOI: 10.1002/jbt.23714] [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: 01/12/2024] [Revised: 03/12/2024] [Accepted: 04/04/2024] [Indexed: 04/19/2024]
Abstract
Parkinson's disease (PD) is a neurodegenerative disease featured by progressive loss of nigrostriatal dopaminergic neurons, the etiology of which is associated with the existence of neuroinflammatory response and oxidative stress. Vincamine is an indole alkaloid that was reported to exhibit potent anti-inflammatory and antioxidant properties in many central and/or peripheral diseases. Nevertheless, the specific role of vincamine in PD development remains unknown. In our study, dopaminergic neuron loss was determined through immunohistochemistry staining and western blot analysis of tyrosine hydroxylase (TH) expression in the substantia nigra (SN) of PD mice. Reactive oxygen species (ROS) production and malondialdehyde (MDA), superoxide dismutase (SOD), and glutathione (GSH) levels were detected through DHE staining and commercially available kits to assess oxidative stress. Pro-inflammatory cytokine (TNF-α, IL-1β, and IL-6) levels in the SN were measured via RT-qPCR and western blot analysis. Microglial and astrocyte activation was examined through immunofluorescence staining of Iba-1 (microglia marker) and GFAP (astrocyte marker) in the SN. The regulation of vincamine on the NF-κB and Nrf2/HO-1 pathway was estimated through western blot analysis. Our results showed that vincamine treatment decreased TNF-α, IL-1β, and IL-6 mRNA and protein levels, reduced GFAP and Iba-1 expression, decreased ROS production and MDA level, and increased SOD activity and GSH level in the SN of PD mice. Mechanically, vincamine repressed the phosphorylation levels of p65, IKKβ, and IκBα but enhanced the protein levels of Nrf2 and HO-1 in PD mice. Collectively, vincamine plays a neuroprotective role in PD mouse models by alleviating neuroinflammation and oxidative damage via suppressing the NF-κB pathway and activating the Nrf2/HO-1 pathway.
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Affiliation(s)
- Pengjun Wang
- Department of Neurology, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Chen Chen
- Department of Neurology, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Min Shan
- Department of Neurology, Luohe Central Hospital, Luohe, Henan, China
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14
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Sun S, Liu Y, He C, Hu W, Liu W, Huang X, Wu J, Xie F, Chen C, Wang J, Lin Y, Zhu W, Yan G, Cai J, Li S. Combining NanoKnife with M1 oncolytic virus enhances anticancer activity in pancreatic cancer [Cancer Lett. 502 (2021) 9-24]. Cancer Lett 2024; 589:216697. [PMID: 38350772 DOI: 10.1016/j.canlet.2024.216697] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/15/2024]
Affiliation(s)
- Shuxin Sun
- Department of Pancreatobiliary Surgery, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, PR China; Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, Guangdong, PR China
| | - Yang Liu
- Department of Pharmacology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, Guangdong, PR China
| | - Chaobin He
- Department of Pancreatobiliary Surgery, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, PR China; Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, Guangdong, PR China
| | - Wanming Hu
- Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, Guangdong, PR China; Department of Pathology, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, PR China
| | - Wenfeng Liu
- Department of Pharmacology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, Guangdong, PR China
| | - Xin Huang
- Department of Pancreatobiliary Surgery, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, PR China; Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, Guangdong, PR China
| | - Jiali Wu
- Department of Pancreatobiliary Surgery, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, PR China; Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, Guangdong, PR China
| | - Fengxiao Xie
- Department of Pancreatobiliary Surgery, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, PR China; Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, Guangdong, PR China
| | - Chen Chen
- Department of Pharmacology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, Guangdong, PR China
| | - Jun Wang
- Department of Pancreatobiliary Surgery, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, PR China; Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, Guangdong, PR China
| | - Yuan Lin
- Department of Pharmacology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, Guangdong, PR China
| | - Wenbo Zhu
- Department of Pharmacology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, Guangdong, PR China
| | - Guangmei Yan
- Department of Pharmacology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, Guangdong, PR China
| | - Jing Cai
- Department of Pharmacology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, Guangdong, PR China.
| | - Shengping Li
- Department of Pancreatobiliary Surgery, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, PR China; Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, Guangdong, PR China.
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15
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Wang DP, Jiang FY, Zeng XY, Liu YJ, Zhao R, Wang MY, Luo J, Chen C, Zhu Y, Cao JM. Corrigendum to "Crystal structure of RNA helicase from Saint Louis encephalitis virus and discovery of its inhibitors" [Genes Dis 10 (2023) 389-392]. Genes Dis 2024; 11:101113. [PMID: 38292198 PMCID: PMC10825432 DOI: 10.1016/j.gendis.2023.101113] [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] [Subscribe] [Scholar Register] [Indexed: 02/01/2024] Open
Abstract
[This corrects the article DOI: 10.1016/j.gendis.2022.07.001.].
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Affiliation(s)
- De-Ping Wang
- Key Laboratory of Cellular Physiology at Shanxi Medical University, Ministry of Education, and the Department of Physiology, Shanxi Medical University, Taiyuan, Shanxi 030001, China
| | - Fang-Ying Jiang
- Key Laboratory of Cellular Physiology at Shanxi Medical University, Ministry of Education, and the Department of Physiology, Shanxi Medical University, Taiyuan, Shanxi 030001, China
| | - Xian-Yan Zeng
- College of Life Sciences, Chongqing Medical University, Chongqing 400016, China
| | - Yu-Jie Liu
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin 300070, China
| | - Rong Zhao
- Key Laboratory of Cellular Physiology at Shanxi Medical University, Ministry of Education, and the Department of Physiology, Shanxi Medical University, Taiyuan, Shanxi 030001, China
| | - Mei-Yue Wang
- Key Laboratory of Cellular Physiology at Shanxi Medical University, Ministry of Education, and the Department of Physiology, Shanxi Medical University, Taiyuan, Shanxi 030001, China
| | - Jing Luo
- Department of Rheumatology, The Second Hospital of Shanxi Medical University, Taiyuan, Shanxi 030001, China
| | - Chen Chen
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin 300070, China
| | - Yong Zhu
- College of Life Sciences, Chongqing Medical University, Chongqing 400016, China
| | - Ji-Min Cao
- Key Laboratory of Cellular Physiology at Shanxi Medical University, Ministry of Education, and the Department of Physiology, Shanxi Medical University, Taiyuan, Shanxi 030001, China
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16
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Chen C, Zhang J, Cao R, Hua K, Zha Y, Gong M, Jiang X. Clinical outcomes of olecranon sled fixation in patients with Mayo type II olecranon fractures. Heliyon 2024; 10:e29184. [PMID: 38628716 PMCID: PMC11019171 DOI: 10.1016/j.heliyon.2024.e29184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Revised: 04/01/2024] [Accepted: 04/02/2024] [Indexed: 04/19/2024] Open
Abstract
Background Tension band wiring and plate fixation are common internal fixation methods used for olecranon fractures, but complications and reoperations are common. The purpose of this study is to investigate the clinical outcomes of displaced olecranon fractures treated with olecranon sled internal fixation. Methods The data of 39 patients with olecranon fractures treated with olecranon sled in the Department of Traumatology of Beijing Jishuitan Hospital between May 2018 and April 2020 were retrospectively analyzed. There were 17 males and 22 females; the mean age was 44.0 ± 15.8 (range, 18-68 years). Preoperative olecranon fractures were classified according to the Mayo classification: 24 cases were type IIA and 15 cases were type IIB. Elbow range of motion (extension and flexion) and forearm rotation (protonation and supination) were observed at the last follow-up. The Mayo elbow performance score (MEPS), Disabilities of the arm, shoulder and hand (DASH) and visual analogue scale (VAS) scores were used to evaluate elbow function and pain, and complications were also recorded. Results Thirty-nine patients were followed up for 33.6 ± 8.3 months (range, 25-51 months) after the operation. At the last follow-up, the mean flexion-extension arc was 137° ± 15° (range, 60°-160°), and the mean pronation-supination arc was 178° ± 4° (range, 160°-180°). The mean MEPS was 94.9 ± 9.9 (range, 50.0-100.0). The mean DASH score was 5.4 ± 4.3 (range, 0-18.3). The mean VAS score was 0.4 ± 0.8 (range, 0-3). Seven patients developed olecranon skin irritation, and 3 of them had the internal fixation device removed. Two patients developed heterotopic ossification, of whom 1 patient suffered elbow stiffness. Conclusion Olecranon sled internal fixation has good clinical outcomes in the treatment of Mayo type II olecranon fractures with a low rate of reoperations.
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Affiliation(s)
- Chen Chen
- Department of Orthopaedics and Traumatology, Beijing Jishuitan Hospital, Capital Medical University, Beijing, China
- Peking University Fourth School of Clinical Medicine, Beijing, China
- National Center of Orthopaedics, Beijing, China
| | - Jianyu Zhang
- Department of Orthopaedics and Traumatology, Beijing Jishuitan Hospital, Capital Medical University, Beijing, China
- Peking University Fourth School of Clinical Medicine, Beijing, China
- National Center of Orthopaedics, Beijing, China
| | - Renwei Cao
- Department of Orthopaedics and Traumatology, Beijing Jishuitan Hospital, Capital Medical University, Beijing, China
- Peking University Fourth School of Clinical Medicine, Beijing, China
- National Center of Orthopaedics, Beijing, China
| | - Kehan Hua
- Department of Orthopaedics and Traumatology, Beijing Jishuitan Hospital, Capital Medical University, Beijing, China
- Peking University Fourth School of Clinical Medicine, Beijing, China
- National Center of Orthopaedics, Beijing, China
| | - Yejun Zha
- Department of Orthopaedics and Traumatology, Beijing Jishuitan Hospital, Capital Medical University, Beijing, China
- Peking University Fourth School of Clinical Medicine, Beijing, China
- National Center of Orthopaedics, Beijing, China
| | - Maoqi Gong
- Department of Orthopaedics and Traumatology, Beijing Jishuitan Hospital, Capital Medical University, Beijing, China
- Peking University Fourth School of Clinical Medicine, Beijing, China
- National Center of Orthopaedics, Beijing, China
| | - Xieyuan Jiang
- Department of Orthopaedics and Traumatology, Beijing Jishuitan Hospital, Capital Medical University, Beijing, China
- Peking University Fourth School of Clinical Medicine, Beijing, China
- National Center of Orthopaedics, Beijing, China
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17
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Cai Y, Zhu J, Zhu L, Hong L, Zhang J, Kong L, Chen C, Luo J. Physalin H ameliorates LPS-induced acute lung injury via KEAP1/NRF2 axis. Int Immunopharmacol 2024; 131:111789. [PMID: 38484668 DOI: 10.1016/j.intimp.2024.111789] [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: 01/15/2024] [Revised: 02/19/2024] [Accepted: 02/29/2024] [Indexed: 04/10/2024]
Abstract
Physalin H (PH), a withanolide isolated from Physalisangulata L. has been reported to have anti-inflammatory effect. However, its impact on acute lung injury (ALI) remains unexplored. In this study, we observed that PH significantly alleviated inflammation in LPS-stimulated macrophages by suppressing the release of proinflammatory cytokines (TNF-α, IL-1β, and IL-6) and down-regulating the expression of the inflammation-related genes. RNA sequencing analysis revealed a significant up-regulation of the NRF2 pathway by PH. Further investigation elucidated that PH attenuated the ubiquitination of NRF2 by impeding the interaction between NRF2 and KEAP1, thereby facilitating NRF2 nuclear translocation and up-regulating the expression of target genes. Consequently, it regulated redox system and exerted anti-inflammatory effect. Consistently, PH also significantly alleviated pathological damage and inflammation in LPS-induced ALI mice model, which could be reversed by administration of an NRF2 inhibitor. Collectively, these results suggest that PH ameliorates ALI by activating the KEAP1/NRF2 pathway. These findings provide a foundation for further development of pH as a new anti-inflammatory agent for ALI therapy.
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Affiliation(s)
- Yuxing Cai
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu Province, China
| | - Jiangmin Zhu
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu Province, China
| | - Ling Zhu
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu Province, China
| | - Lihong Hong
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu Province, China
| | - Jianfei Zhang
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu Province, China
| | - Lingyi Kong
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu Province, China
| | - Chen Chen
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu Province, China.
| | - Jianguang Luo
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu Province, China.
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Sun Y, Wang L, Guo C, Xiao J, Liu C, Chen C, Xia W, Gan Z, Cheng J, Zhou J, Chen Z, Zhou J, Liu D, Wang T, Li W. π-Extended Nonfullerene Acceptor for Compressed Molecular Packing in Organic Solar Cells To Achieve over 20% Efficiency. J Am Chem Soc 2024. [PMID: 38639467 DOI: 10.1021/jacs.4c01503] [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] [Subscribe] [Scholar Register] [Indexed: 04/20/2024]
Abstract
Organic photovoltaics (OPVs) suffer from a trade-off between efficient charge transport and suppressed nonradiative recombination due to the aggregation-induced luminance quenching of organic semiconductors. To resolve this grand challenge, a π-extended nonfullerene acceptor (NFA) B6Cl with large voids among the honeycomb network is designed and introduced into photovoltaic systems. We find that the presence of a small amount of (i.e., 0.5 or 1 wt %) B6Cl can compress the molecular packing of the host acceptor L8-BO, leading to shortened π-π stacking distance from 3.59 to 3.50 Å (that will improve charge transport) together with ordered alkyl chain packing (that will inhibit nonradiative energy loss due to the suppressed C-C and C-H bonds vibrations), as validated by high-energy X-ray scattering measurements. This morphology transformation ultimately results in simultaneously improved JSC, FF, and VOC of OPVs. As a result, the maximum PCEs of PM6:L8-BO and D18:L8-BO are increased from 19.1 and 19.3% to 19.8 and 20.2%, respectively, which are among the highest values for single-junction OPVs. The university of B6Cl to increase the performance of OPVs is further evidenced in a range of polymer:NFA OPVs.
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Affiliation(s)
- Yuandong Sun
- School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China
| | - Liang Wang
- School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China
| | - Chuanhang Guo
- School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China
| | - Jinyi Xiao
- School of Materials and Microelectronics, Wuhan University of Technology, Wuhan 430070, China
| | - Chenhao Liu
- School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China
| | - Chen Chen
- School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China
| | - Weiyi Xia
- School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China
| | - Zirui Gan
- School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China
| | - Jingchao Cheng
- School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China
| | - Jinpeng Zhou
- School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China
| | - Zhenghong Chen
- School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China
| | - Jing Zhou
- School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China
| | - Dan Liu
- School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China
| | - Tao Wang
- School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China
- School of Materials and Microelectronics, Wuhan University of Technology, Wuhan 430070, China
| | - Wei Li
- School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China
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Liu L, Li Q, Chen C, Xin W, Han C, Hua Z. Oncolytic bacteria VNP20009 expressing IFNβ inhibits melanoma progression by remodeling the tumor microenvironment. iScience 2024; 27:109372. [PMID: 38510114 PMCID: PMC10951989 DOI: 10.1016/j.isci.2024.109372] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Revised: 01/16/2024] [Accepted: 02/26/2024] [Indexed: 03/22/2024] Open
Abstract
In the tumor microenvironment (TME), tumor-associated NEs (TANs) have the potential to be protumorigenic or antitumorigenic within the TME in response to environmental cues. The diversity and plasticity of NEs (NEs) underlie the dual potential of TANs in the TME. Here, we utilized the tumor-targeting bacterium VNP20009 (VNP) to carry a plasmid expressed IFNβ (VNP-IFNβ), which can deliver IFNβ and remodel TANs to an antitumorigenic phenotype, and performed preclinical evaluations in the B16F10 lung metastasis model and the B16F10 subcutaneous xenograft model. Compared with VNP, VNP-IFNβ recruited more NEs and macrophages (Mφs) with antitumor phenotypes in lung metastases and activated dendritic cells (DCs) differentiation, which activated antitumor immune responses of CD4+ T cells, and ultimately inhibited melanoma progression. This study enriches the bacterial-mediated tumor therapy by using tumor-targeting bacteria to deliver IFNβ to the tumor site and inhibit melanoma growth and metastasis by remodeling the tumor immune microenvironment.
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Affiliation(s)
- Lina Liu
- The State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences; Nanjing University, Nanjing 210023, Jiangsu, China
| | - Qiang Li
- The State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences; Nanjing University, Nanjing 210023, Jiangsu, China
| | - Chen Chen
- The State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences; Nanjing University, Nanjing 210023, Jiangsu, China
| | - Wenjie Xin
- The State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences; Nanjing University, Nanjing 210023, Jiangsu, China
| | - Chao Han
- The State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences; Nanjing University, Nanjing 210023, Jiangsu, China
| | - Zichun Hua
- The State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences; Nanjing University, Nanjing 210023, Jiangsu, China
- Changzhou High-Tech Research Institute of Nanjing University and Jiangsu, Changzhou, Jiangsu 213164, China
- TargetPharma Laboratories Inc, Changzhou 213164, Jiangsu, China
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20
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Liang J, Dai W, Liu C, Wen Y, Chen C, Xu Y, Huang S, Hou S, Li C, Chen Y, Wang W, Tang H. Gingerenone A Attenuates Ulcerative Colitis via Targeting IL-17RA to Inhibit Inflammation and Restore Intestinal Barrier Function. Adv Sci (Weinh) 2024:e2400206. [PMID: 38639442 DOI: 10.1002/advs.202400206] [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: 01/07/2024] [Revised: 03/27/2024] [Indexed: 04/20/2024]
Abstract
Ulcerative colitis (UC) is a complicated and recurrent intestinal disease. Currently available drugs for UC treatment are scarce, therefore, novel therapeutic drugs for the UC are urgently to be developed. Gingerenone A (GA) is a phenolic compound known for its anti-inflammatory effect, but its effect on UC remains unknown. Here, it is shown that GA protects mice against UC, which is closely associated with inhibiting intestinal mucosal inflammation and enhancing intestinal barrier integrity in vivo and in vitro. Of note, RNA sequencing analysis demonstrates an evident correlation with IL-17 signaling pathway after GA treatment, and this effect is further corroborated by Western blot. Mechanistically, GA directly interacts with IL-17RA protein through pull-down, surface plasmon resonance analysis and molecular dynamics simulation. Importantly, lentivirus-mediated IL-17RA/Act1 knock-down or GA co-treatment with brodalumab/ixekizumab significantly impairs the protective effects of GA against DSS-induced inflammation and barrier dysfunction, suggesting a critical role of IL-17RA signaling for GA-mediated protection against UC. Overall, these results indicate that GA is an effective agent against UC mainly through the direct binding of IL-17RA to inhibit inflammatory signaling activation.
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Affiliation(s)
- Jian Liang
- School of Pharmaceutical Sciences, State Key Laboratory of Traditional Chinese Medicine Syndrome, Guangzhou University of Chinese Medicine, Guangzhou, 510006, China
- State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-Sen University Cancer Center, Guangzhou, 510060, China
- Dongguan Institute of Guangzhou University of Chinese Medicine, Dongguan, 523808, China
| | - Weigang Dai
- Center of Ganstric Cancer, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510062, China
| | - Chuanghui Liu
- School of Pharmaceutical Sciences, State Key Laboratory of Traditional Chinese Medicine Syndrome, Guangzhou University of Chinese Medicine, Guangzhou, 510006, China
| | - Yifan Wen
- School of Pharmaceutical Sciences, State Key Laboratory of Traditional Chinese Medicine Syndrome, Guangzhou University of Chinese Medicine, Guangzhou, 510006, China
| | - Chen Chen
- School of Pharmaceutical Sciences, State Key Laboratory of Traditional Chinese Medicine Syndrome, Guangzhou University of Chinese Medicine, Guangzhou, 510006, China
| | - Yifei Xu
- Shenzhen Traditional Chinese Medicine Hospital, The Fourth Clinical Medical College of Guangzhou University of Chinese Medicine, Shenzhen, 518033, China
| | - Song Huang
- School of Pharmaceutical Sciences, State Key Laboratory of Traditional Chinese Medicine Syndrome, Guangzhou University of Chinese Medicine, Guangzhou, 510006, China
- Dongguan Institute of Guangzhou University of Chinese Medicine, Dongguan, 523808, China
| | - Shaozhen Hou
- School of Pharmaceutical Sciences, State Key Laboratory of Traditional Chinese Medicine Syndrome, Guangzhou University of Chinese Medicine, Guangzhou, 510006, China
| | - Chun Li
- School of Pharmaceutical Sciences, State Key Laboratory of Traditional Chinese Medicine Syndrome, Guangzhou University of Chinese Medicine, Guangzhou, 510006, China
| | - Yongming Chen
- State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-Sen University Cancer Center, Guangzhou, 510060, China
| | - Wei Wang
- School of Pharmaceutical Sciences, State Key Laboratory of Traditional Chinese Medicine Syndrome, Guangzhou University of Chinese Medicine, Guangzhou, 510006, China
| | - Hailin Tang
- State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-Sen University Cancer Center, Guangzhou, 510060, China
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21
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Zhang H, Chen C, Zhang EE, Huang X. TDP-43 deficiency in suprachiasmatic nucleus perturbs rhythmicity of neuroactivity in prefrontal cortex. iScience 2024; 27:109522. [PMID: 38585660 PMCID: PMC10995886 DOI: 10.1016/j.isci.2024.109522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Revised: 12/28/2023] [Accepted: 03/14/2024] [Indexed: 04/09/2024] Open
Abstract
Individuals within the amyotrophic lateral sclerosis and frontotemporal dementia disease spectrum (ALS/FTD) often experience disruptive mental behaviors and sleep-wake disturbances. The hallmark of ALS/FTD is the pathological involvement of TAR DNA-binding protein 43 (TDP-43). Understanding the role of TDP-43 in the circadian clock holds promise for addressing these behavioral abnormalities. In this study, we unveil TDP-43 as a pivotal regulator of the circadian clock. TDP-43 knockdown induces intracellular arrhythmicity, disrupts transcriptional activation regulation, and diminishes clock genes expression. Moreover, our experiments in adult mouse reveal that TDP-43 knockdown, specifically within the suprachiasmatic nucleus (SCN), induces locomotor arrhythmia, arrhythmic c-Fos expression, and depression-like behavior. This observation offers valuable insights into the substantial impact of TDP-43 on the behavioral aberrations associated with ALS/FTD. In summary, our study illuminates the significance of TDP-43 in circadian regulation, shedding light on the circadian regulatory mechanisms that may elucidate the pathological underpinnings of ALS/FTD.
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Affiliation(s)
- Hongxia Zhang
- Department of Medical Microbiology, Jiangxi Medical College, Nanchang University, Nanchang 330006, China
- National Institute of Biological Sciences, Beijing 102206, China
| | - Chen Chen
- National Institute of Biological Sciences, Beijing 102206, China
| | | | - Xiaotian Huang
- Department of Medical Microbiology, Jiangxi Medical College, Nanchang University, Nanchang 330006, China
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22
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Liu X, Xu H, Peng M, Zhou C, Wei C, Hong X, Li W, Chen C, Ji L, Zhu X. Screening of temperature-responsive signalling molecules during sex differentiation in Asian yellow pond turtle (Mauremys mutica). BMC Genomics 2024; 25:383. [PMID: 38637759 DOI: 10.1186/s12864-024-10275-5] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2024] [Accepted: 04/01/2024] [Indexed: 04/20/2024] Open
Abstract
BACKGROUND The Asian yellow pond turtle (Mauremys mutica) is an important commercial freshwater aquaculture species in China. This species is a highly sexually dimorphic species, with males growing at a faster rate than females and exhibits temperature-dependent sex determination (TSD), in which the incubation temperature during embryonic development determines the sexual fate. However, the mechanisms of the sex determination or sex differentiation in the Asian yellow pond turtle are remain a mystery. RESULTS Temperature-specific gonadal transcriptomics of the Asian yellow pond turtle were performed during the thermosensitive period (stage 15) using RNA-seq technology to identify candidate genes that initiate gonadal differentiation. We uncovered candidates that were the first to respond to temperature. These candidates were sexually dimorphic in expression, reflecting differences in gonadal (Cirbp, Runx1) and germline differentiation (Vasa, Nanos1, Piwil2), gametogenesis (Hmgb3, Zar1, Ovoinhibitor-like, Kif4), steroid hormone biosynthesis (Hsd17b5, Hsd17b6), heat shock (Dnajb6, Hsp90b1, Hsp90aa1) and transient receptor potential channel genes (Trpm1, Trpm4, Trpm6, Trpv1). CONCLUSIONS Our work will provide important genetic information to elucidate the mechanisms of sex control in the Asian yellow pond turtles, and will contribute important genetic resources for further studies of temperature-dependent sex determination in turtles.
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Affiliation(s)
- Xiaoli Liu
- Key Laboratory of Tropical and Subtropical Fishery Resources Application and Cultivation, Ministry of Agriculture and Rural Affairs, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, 510380, Guangzhou, China
- College of Life Science and Fisheries, Shanghai Ocean University, 201306, Shanghai, China
| | - Haoyang Xu
- Key Laboratory of Tropical and Subtropical Fishery Resources Application and Cultivation, Ministry of Agriculture and Rural Affairs, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, 510380, Guangzhou, China
- College of Life Science and Fisheries, Shanghai Ocean University, 201306, Shanghai, China
| | - Mingwei Peng
- Key Laboratory of Tropical and Subtropical Fishery Resources Application and Cultivation, Ministry of Agriculture and Rural Affairs, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, 510380, Guangzhou, China
- School of Fishery, Zhejiang Ocean University, 316000, Zhoushan, China
| | - Chenyao Zhou
- Key Laboratory of Tropical and Subtropical Fishery Resources Application and Cultivation, Ministry of Agriculture and Rural Affairs, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, 510380, Guangzhou, China
- School of Fishery, Zhejiang Ocean University, 316000, Zhoushan, China
| | - Chengqing Wei
- Key Laboratory of Tropical and Subtropical Fishery Resources Application and Cultivation, Ministry of Agriculture and Rural Affairs, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, 510380, Guangzhou, China
| | - Xiaoyou Hong
- Key Laboratory of Tropical and Subtropical Fishery Resources Application and Cultivation, Ministry of Agriculture and Rural Affairs, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, 510380, Guangzhou, China
| | - Wei Li
- Key Laboratory of Tropical and Subtropical Fishery Resources Application and Cultivation, Ministry of Agriculture and Rural Affairs, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, 510380, Guangzhou, China
- College of Life Science and Fisheries, Shanghai Ocean University, 201306, Shanghai, China
| | - Chen Chen
- Key Laboratory of Tropical and Subtropical Fishery Resources Application and Cultivation, Ministry of Agriculture and Rural Affairs, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, 510380, Guangzhou, China
| | - Liqin Ji
- Key Laboratory of Tropical and Subtropical Fishery Resources Application and Cultivation, Ministry of Agriculture and Rural Affairs, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, 510380, Guangzhou, China
| | - Xinping Zhu
- Key Laboratory of Tropical and Subtropical Fishery Resources Application and Cultivation, Ministry of Agriculture and Rural Affairs, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, 510380, Guangzhou, China.
- College of Life Science and Fisheries, Shanghai Ocean University, 201306, Shanghai, China.
- School of Fishery, Zhejiang Ocean University, 316000, Zhoushan, China.
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23
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Gu T, Wang M, Fu X, Tian X, Bi J, Lu N, Chen C, Yan S, Li A, Wang L, Li X, Liu K, Dong Z. Intratumoural delivery of TRAIL mRNA induces colon cancer cell apoptosis. Biomed Pharmacother 2024; 174:116603. [PMID: 38636395 DOI: 10.1016/j.biopha.2024.116603] [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: 05/21/2023] [Revised: 04/03/2024] [Accepted: 04/12/2024] [Indexed: 04/20/2024] Open
Abstract
Novel strategies in intratumoral injection and emerging immunotherapies have heralded a new era of precise cancer treatments. The affinity of SARS-CoV-2 to ACE2 receptors, a feature which facilitates virulent human infection, is leveraged in this research. Colon cancer cells, with their high ACE2 expression, provide a potentially strategic target for using this SARS-CoV-2 feature. While the highly expression of ACE2 is observed in several cancer types, the idea of using the viral spike protein for targeting colon cancer cells offers a novel approach in cancer treatment. Intratumoral delivery of nucleic acid-based drugs is a promising alternative to overcoming the limitations of existing therapies. The increasing importance of nucleic acids in this realm, and the use of Lipid Nanoparticles (LNPs) for local delivery of nucleic acid therapeutics, are important breakthroughs. LNPs protect nucleic acid drugs from degradation and enhance cellular uptake, making them a rapidly evolving nano delivery system with high precision and adaptability. Our study leveraged a tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) combined with a receptor-binding domain from the SARS-CoV-2 spike protein, encapsulated in LNPs, to target colon cancer cells. Our results indicated that the TRAIL fusion-mRNA induced apoptosis in vitro and in vivo. Collectively, our findings highlight LNP-encapsulated TRAIL fusion-mRNA as a potential colon cancer therapy.
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Affiliation(s)
- Tingxuan Gu
- Tianjian Laboratory of advanced Biomedical Sciences, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, Henan 450001, China; Department of Pathophysiology, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, Henan 450001, China; China-US (Henan) Hormel Cancer Institute, No.127, Dongming Road, Jinshui District, Zhengzhou, Henan 450008, China
| | - Mengqiao Wang
- Department of Pathophysiology, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, Henan 450001, China; China-US (Henan) Hormel Cancer Institute, No.127, Dongming Road, Jinshui District, Zhengzhou, Henan 450008, China
| | - Xiaorong Fu
- China-US (Henan) Hormel Cancer Institute, No.127, Dongming Road, Jinshui District, Zhengzhou, Henan 450008, China
| | - Xueli Tian
- China-US (Henan) Hormel Cancer Institute, No.127, Dongming Road, Jinshui District, Zhengzhou, Henan 450008, China; Medical Research Center, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, China
| | - Juanjuan Bi
- Department of Pathophysiology, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, Henan 450001, China; China-US (Henan) Hormel Cancer Institute, No.127, Dongming Road, Jinshui District, Zhengzhou, Henan 450008, China
| | - Ning Lu
- Department of Pathophysiology, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, Henan 450001, China; China-US (Henan) Hormel Cancer Institute, No.127, Dongming Road, Jinshui District, Zhengzhou, Henan 450008, China
| | - Chen Chen
- Department of Pathophysiology, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, Henan 450001, China; China-US (Henan) Hormel Cancer Institute, No.127, Dongming Road, Jinshui District, Zhengzhou, Henan 450008, China
| | - Shijia Yan
- Department of Pathophysiology, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, Henan 450001, China; China-US (Henan) Hormel Cancer Institute, No.127, Dongming Road, Jinshui District, Zhengzhou, Henan 450008, China
| | - Ang Li
- Department of Pathophysiology, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, Henan 450001, China; China-US (Henan) Hormel Cancer Institute, No.127, Dongming Road, Jinshui District, Zhengzhou, Henan 450008, China
| | - Luyun Wang
- Department of Pathophysiology, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, Henan 450001, China; China-US (Henan) Hormel Cancer Institute, No.127, Dongming Road, Jinshui District, Zhengzhou, Henan 450008, China
| | - Xiang Li
- Tianjian Laboratory of advanced Biomedical Sciences, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, Henan 450001, China; Department of Pathophysiology, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, Henan 450001, China; China-US (Henan) Hormel Cancer Institute, No.127, Dongming Road, Jinshui District, Zhengzhou, Henan 450008, China
| | - Kangdong Liu
- Tianjian Laboratory of advanced Biomedical Sciences, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, Henan 450001, China; Department of Pathophysiology, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, Henan 450001, China; China-US (Henan) Hormel Cancer Institute, No.127, Dongming Road, Jinshui District, Zhengzhou, Henan 450008, China
| | - Zigang Dong
- Tianjian Laboratory of advanced Biomedical Sciences, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, Henan 450001, China; Department of Pathophysiology, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, Henan 450001, China; China-US (Henan) Hormel Cancer Institute, No.127, Dongming Road, Jinshui District, Zhengzhou, Henan 450008, China.
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24
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Ye Z, Tai Y, Han Z, Liu S, Etheridge ML, Pasek-Allen JL, Shastry C, Liu Y, Li Z, Chen C, Wang Z, Bischof JC, Nam J, Yin Y. Engineering Magnetic Nanoclusters for Highly Efficient Heating in Radio-Frequency Nanowarming. Nano Lett 2024; 24:4588-4594. [PMID: 38587406 DOI: 10.1021/acs.nanolett.4c00721] [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] [Indexed: 04/09/2024]
Abstract
Effective thawing of cryopreserved samples requires rapid and uniform heating. This is achievable through nanowarming, an approach that heats magnetic nanoparticles by using alternating magnetic fields. Here we demonstrate the synthesis and surface modification of magnetic nanoclusters for efficient nanowarming. Magnetite (Fe3O4) nanoclusters with an optimal diameter of 58 nm exhibit a high specific absorption rate of 1499 W/g Fe under an alternating magnetic field at 43 kA/m and 413 kHz, more than twice that of commercial iron oxide cores used in prior nanowarming studies. Surface modification with a permeable resorcinol-formaldehyde resin (RFR) polymer layer significantly enhances their colloidal stability in complex cryoprotective solutions, while maintaining their excellent heating capacity. The Fe3O4@RFR nanoparticles achieved a high average heating rate of 175 °C/min in cryopreserved samples at a concentration of 10 mg Fe/mL and were successfully applied in nanowarming porcine iliac arteries, highlighting their potential for enhancing the efficacy of cryopreservation.
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Affiliation(s)
- Zuyang Ye
- Department of Chemistry, University of California, Riverside, California 92521, United States
| | - Youyi Tai
- Department of Bioengineering, University of California, Riverside, California 92521, United States
| | - Zonghu Han
- Department of Mechanical Engineering, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Sangmo Liu
- Department of Chemistry, University of California, Riverside, California 92521, United States
| | - Michael L Etheridge
- Department of Mechanical Engineering, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Jacqueline L Pasek-Allen
- Department of Biomedical Engineering, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Chaitanya Shastry
- Department of Chemistry, University of California, Riverside, California 92521, United States
| | - Yun Liu
- Department of Chemistry, University of California, Riverside, California 92521, United States
| | - Zhiwei Li
- Department of Chemistry, University of California, Riverside, California 92521, United States
| | - Chen Chen
- Department of Chemistry, University of California, Riverside, California 92521, United States
| | - Zhongxiang Wang
- Department of Chemistry, University of California, Riverside, California 92521, United States
| | - John C Bischof
- Department of Mechanical Engineering, University of Minnesota, Minneapolis, Minnesota 55455, United States
- Department of Biomedical Engineering, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Jin Nam
- Department of Bioengineering, University of California, Riverside, California 92521, United States
| | - Yadong Yin
- Department of Chemistry, University of California, Riverside, California 92521, United States
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25
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Gao X, Xuan Y, Zhou Z, Chen C, Wen Wang D, Wen Z. Ivermectin ameliorates acute myocarditis via the inhibition of importin-mediated nuclear translocation of NF-κB/p65. Int Immunopharmacol 2024; 133:112073. [PMID: 38636372 DOI: 10.1016/j.intimp.2024.112073] [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: 12/09/2023] [Revised: 03/24/2024] [Accepted: 04/09/2024] [Indexed: 04/20/2024]
Abstract
BACKGROUND Myocarditis is an important clinical issue which lacks specific treatment by now. Ivermectin (IVM) is an inhibitor of importin α/β-mediated nuclear translocation. This study aimed to explore the therapeutic effects of IVM on acute myocarditis. METHODS Mouse models of coxsackie B3 virus (CVB3) infection-induced myocarditis and experimental autoimmune myocarditis (EAM) were established to evaluate the effects of IVM. Cardiac functions were evaluated by echocardiography and Millar catheter. Cardiac inflammatory infiltration was assessed by histological staining. Cytometric bead array and quantitative real-time PCR were used to detect the levels of pro-inflammatory cytokines. The macrophages and their M1/M2 polarization were analyzed via flow cytometry. Protein expression and binding were detected by co-immunoprecipitation, Western blotting and histological staining. The underlying mechanism was verified in vitro using CVB3-infected RAW264.7 macrophages. Cyclic polypeptide (cTN50) was synthesized to selectively inhibit the nuclear translocation of NF-κB/p65, and CVB3-infected RAW264.7 cells were treated with cTN50. RESULTS Increased expression of importin β was observed in both models. IVM treatment improved cardiac functions and reduced the cardiac inflammation associated with CVB3-myocarditis and EAM. Furthermore, the pro-inflammatory cytokine (IL-1β/IL-6/TNF-α) levels were downregulated via the inhibition of the nuclear translocation of NF-κB/p65 in macrophages. IVM and cTN50 treatment also inhibited the nuclear translocation of NF-κB/p65 and downregulated the expression of pro-inflammatory cytokines in RAW264.7 macrophages. CONCLUSIONS Ivermectin inhibits the nuclear translocation of NF-κB/p65 and the expression of major pro-inflammatory cytokines in myocarditis. The therapeutic effects of IVM on viral and non-viral myocarditis models suggest its potential application in the treatment of acute myocarditis.
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Affiliation(s)
- Xu Gao
- Division of Cardiology, Department of Internal Medicine and Hubei Key Laboratory of Genetics and Molecular Mechanism of Cardiologic Disorders, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430000, PR China
| | - Yunling Xuan
- Division of Cardiology, Department of Internal Medicine and Hubei Key Laboratory of Genetics and Molecular Mechanism of Cardiologic Disorders, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430000, PR China
| | - Zhou Zhou
- Division of Cardiology, Department of Internal Medicine and Hubei Key Laboratory of Genetics and Molecular Mechanism of Cardiologic Disorders, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430000, PR China
| | - Chen Chen
- Division of Cardiology, Department of Internal Medicine and Hubei Key Laboratory of Genetics and Molecular Mechanism of Cardiologic Disorders, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430000, PR China
| | - Dao Wen Wang
- Division of Cardiology, Department of Internal Medicine and Hubei Key Laboratory of Genetics and Molecular Mechanism of Cardiologic Disorders, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430000, PR China
| | - Zheng Wen
- Division of Cardiology, Department of Internal Medicine and Hubei Key Laboratory of Genetics and Molecular Mechanism of Cardiologic Disorders, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430000, PR China.
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26
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Chen C, Yurtsever A, Li P, Sun L. Two-Dimensional Layered Nanomaterials Steering Self-Assembly of Dodecapeptides with Three Building Blocks. ACS Appl Mater Interfaces 2024; 16:19699-19710. [PMID: 38588069 DOI: 10.1021/acsami.3c18851] [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: 04/10/2024]
Abstract
Self-assembly of peptides on layered nanomaterials such as graphite and MoS2 in the formation of long-range ordered two-dimensional nanocrystal patterns leading to its potential applications for biosensing and bioelectronics has attracted significant interest in nanoscience and nanotechnology. However, controlling the self-assembly of peptides on nanomaterials is still challenging due to the unclear role of nanomaterials in steering self-assembly. Here, we used the in-situ AFM technique to capture different changes of peptide coverage as well as lengthening and widening rates depending on peptide concentrations, show the distinct boundary dynamics of two stabilized peptide domains, and resolve the molecular resolution structural differences and specific orientation of peptide on both nanomaterials. Moreover, ex-situ results showed that the nanomaterial layers tuned the opposite changes of nanowire heights and densities and displayed the different water-resistance stabilities on both nanomaterials. This work provides a basis for understanding nanomaterials steering peptide self-assembly and using hybrid bionanomaterials as a scaffold, enabling for potential biosensing and bioelectronics applications.
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Affiliation(s)
- Chen Chen
- Earth-Life Science Institute, Tokyo Institute of Technology, Meguro-ku, Tokyo 152-8550, Japan
| | - Ayhan Yurtsever
- WPI Nano Life Science Institute (WPI-NanoLSI), Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan
| | - Peiying Li
- RIKEN Center for Biosystems Dynamics Research, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama 230-0045, Japan
| | - Linhao Sun
- WPI Nano Life Science Institute (WPI-NanoLSI), Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan
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Chen C, Liao F, Zhang X, Cheng S, Deng Y, Chen C, Long M. Polyvinyl alcohol as solid proton donor to modify g-C 3N 4via hydrogen bonding enabling efficient photocatalytic H 2O 2 production from H 2O and O 2. RSC Adv 2024; 14:12407-12415. [PMID: 38633503 PMCID: PMC11022126 DOI: 10.1039/d4ra01746c] [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: 03/06/2024] [Accepted: 04/11/2024] [Indexed: 04/19/2024] Open
Abstract
Polyvinyl alcohol (PVA) was used as a solid proton donor to improve the photocatalytic performance of graphitic carbon nitride (CN) for hydrogen peroxide (H2O2) production. The modified CN (CN/PVA) was prepared by mixing CN and PVA at room temperature. The H2O2 production efficiency of CN/PVA was 5.65 times higher than that of CN in pure water. Photocurrent measurement, electrochemical impedance spectroscopy (EIS), and photoluminescence (PL) analysis proved that PVA increased charge separation of CN. X-ray photoelectron spectroscopy (XPS), and Fourier-transform infrared (FTIR) analyses further suggested that PVA acted as the proton donor during H2O2 production by interacting with CN via hydrogen bonds. The combination of the charge separation enhancer and proton donor from PVA promoted the sequential two-step single-electron reduction of O2 for H2O2 production. This study paves the way for the modification of g-C3N4 with hydroxyl-containing materials as solid proton donors for photocatalytic H2O2 production.
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Affiliation(s)
- Chen Chen
- CCCC Shanghai Dredging Co., Ltd No. 850, Pudong Avenue, Pudong New Area Shanghai 200120 China
| | - Fengtiao Liao
- Shanghai Engineering Research Center of Biotransformation of Organic Solid Waste, Shanghai Key Lab for Urban Ecological Processes and Eco-Restoration, School of Ecological and Environmental Sciences, East China Normal University Shanghai 200241 China
| | - Xiangcheng Zhang
- School of Environmental Science and Engineering, Key Laboratory of Thin Film and Microfabrication Technology (Ministry of Education), Shanghai Jiao Tong University Shanghai 200240 China
| | - Silian Cheng
- School of Environmental Science and Engineering, Key Laboratory of Thin Film and Microfabrication Technology (Ministry of Education), Shanghai Jiao Tong University Shanghai 200240 China
| | - Yu Deng
- CCCC Shanghai Dredging Co., Ltd No. 850, Pudong Avenue, Pudong New Area Shanghai 200120 China
| | - Chao Chen
- Shanghai Engineering Research Center of Biotransformation of Organic Solid Waste, Shanghai Key Lab for Urban Ecological Processes and Eco-Restoration, School of Ecological and Environmental Sciences, East China Normal University Shanghai 200241 China
| | - Mingce Long
- School of Environmental Science and Engineering, Key Laboratory of Thin Film and Microfabrication Technology (Ministry of Education), Shanghai Jiao Tong University Shanghai 200240 China
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Lv Y, Zhang Y, Li X, Gao X, Ren Y, Deng L, Xu L, Zhou J, Wu B, Wei Y, Cui X, Xu Z, Guo Y, Qiu Y, Ye L, Chen C, Wang J, Li C, Luo Y, Yin Z, Mao C, Yu Q, Lu H, Kraus VB, Zeng Y, Tong S, Shi X. Body mass index, waist circumference, and mortality in subjects older than 80 years: a Mendelian randomization study. Eur Heart J 2024:ehae206. [PMID: 38626306 DOI: 10.1093/eurheartj/ehae206] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/07/2023] [Revised: 02/17/2024] [Accepted: 03/19/2024] [Indexed: 04/18/2024] Open
Abstract
BACKGROUND AND AIMS Emerging evidence has raised an obesity paradox in observational studies of body mass index (BMI) and health among the oldest-old (aged ≥80 years), as an inverse relationship of BMI with mortality was reported. This study was to investigate the causal associations of BMI, waist circumference (WC), or both with mortality in the oldest-old people in China. METHODS A total of 5306 community-based oldest-old (mean age 90.6 years) were enrolled in the Chinese Longitudinal Healthy Longevity Survey (CLHLS) between 1998 and 2018. Genetic risk scores were constructed from 58 single-nucleotide polymorphisms (SNPs) associated with BMI and 49 SNPs associated with WC to subsequently derive causal estimates for Mendelian randomization (MR) models. One-sample linear MR along with non-linear MR analyses were performed to explore the associations of genetically predicted BMI, WC, and their joint effect with all-cause mortality, cardiovascular disease (CVD) mortality, and non-CVD mortality. RESULTS During 24 337 person-years of follow-up, 3766 deaths were documented. In observational analyses, higher BMI and WC were both associated with decreased mortality risk [hazard ratio (HR) 0.963, 95% confidence interval (CI) 0.955-0.971 for a 1-kg/m2 increment of BMI and HR 0.971 (95% CI 0.950-0.993) for each 5 cm increase of WC]. Linear MR models indicated that each 1 kg/m2 increase in genetically predicted BMI was monotonically associated with a 4.5% decrease in all-cause mortality risk [HR 0.955 (95% CI 0.928-0.983)]. Non-linear curves showed the lowest mortality risk at the BMI of around 28.0 kg/m2, suggesting that optimal BMI for the oldest-old may be around overweight or mild obesity. Positive monotonic causal associations were observed between WC and all-cause mortality [HR 1.108 (95% CI 1.036-1.185) per 5 cm increase], CVD mortality [HR 1.193 (95% CI 1.064-1.337)], and non-CVD mortality [HR 1.110 (95% CI 1.016-1.212)]. The joint effect analyses indicated that the lowest risk was observed among those with higher BMI and lower WC. CONCLUSIONS Among the oldest-old, opposite causal associations of BMI and WC with mortality were observed, and a body figure with higher BMI and lower WC could substantially decrease the mortality risk. Guidelines for the weight management should be cautiously designed and implemented among the oldest-old people, considering distinct roles of BMI and WC.
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Affiliation(s)
- Yuebin Lv
- China CDC Key Laboratory of Environment and Population Health, National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, #7 Panjiayuan Nanli, Chaoyang, Beijing 100021, China
| | - Yue Zhang
- Department of Bioinformatics and Biostatistics, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, China
| | - Xinwei Li
- China CDC Key Laboratory of Environment and Population Health, National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, #7 Panjiayuan Nanli, Chaoyang, Beijing 100021, China
- Department of Epidemiology and Biostatistics, School of Public Health, Jilin University, Changchun, China
| | - Xiang Gao
- Department of Nutrition and Food Hygiene, School of Public Health, Institute of Nutrition, Fudan University, Shanghai, China
| | - Yongyong Ren
- Department of Bioinformatics and Biostatistics, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, China
| | - Luojia Deng
- Department of Bioinformatics and Biostatistics, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, China
| | - Lanjing Xu
- China CDC Key Laboratory of Environment and Population Health, National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, #7 Panjiayuan Nanli, Chaoyang, Beijing 100021, China
- Department of Big Data in Health Science, School of Public Health, Zhejiang University, Hangzhou, China
| | - Jinhui Zhou
- China CDC Key Laboratory of Environment and Population Health, National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, #7 Panjiayuan Nanli, Chaoyang, Beijing 100021, China
| | - Bing Wu
- China CDC Key Laboratory of Environment and Population Health, National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, #7 Panjiayuan Nanli, Chaoyang, Beijing 100021, China
- Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Yuan Wei
- China CDC Key Laboratory of Environment and Population Health, National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, #7 Panjiayuan Nanli, Chaoyang, Beijing 100021, China
- Department of Epidemiology and Biostatistics, School of Public Health, Jilin University, Changchun, China
| | - Xingyao Cui
- China CDC Key Laboratory of Environment and Population Health, National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, #7 Panjiayuan Nanli, Chaoyang, Beijing 100021, China
- Department of Epidemiology and Biostatistics, School of Public Health, Jilin University, Changchun, China
| | - Zinan Xu
- China CDC Key Laboratory of Environment and Population Health, National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, #7 Panjiayuan Nanli, Chaoyang, Beijing 100021, China
- Department of Epidemiology, School of Public Health, Southern Medical University, Guangzhou, China
| | - Yanbo Guo
- China CDC Key Laboratory of Environment and Population Health, National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, #7 Panjiayuan Nanli, Chaoyang, Beijing 100021, China
- Department of Epidemiology and Biostatistics, School of Public Health, Jilin University, Changchun, China
| | - Yidan Qiu
- China CDC Key Laboratory of Environment and Population Health, National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, #7 Panjiayuan Nanli, Chaoyang, Beijing 100021, China
- Department of Big Data in Health Science, School of Public Health, Zhejiang University, Hangzhou, China
| | - Lihong Ye
- China CDC Key Laboratory of Environment and Population Health, National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, #7 Panjiayuan Nanli, Chaoyang, Beijing 100021, China
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Chen Chen
- China CDC Key Laboratory of Environment and Population Health, National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, #7 Panjiayuan Nanli, Chaoyang, Beijing 100021, China
| | - Jun Wang
- China CDC Key Laboratory of Environment and Population Health, National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, #7 Panjiayuan Nanli, Chaoyang, Beijing 100021, China
| | - Chenfeng Li
- China CDC Key Laboratory of Environment and Population Health, National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, #7 Panjiayuan Nanli, Chaoyang, Beijing 100021, China
- Department of Occupational Health and Environment Health, School of Public Health, Anhui Medical University, Hefei, China
| | - Yufei Luo
- China CDC Key Laboratory of Environment and Population Health, National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, #7 Panjiayuan Nanli, Chaoyang, Beijing 100021, China
- Department of Occupational Health and Environment Health, School of Public Health, Anhui Medical University, Hefei, China
| | - Zhaoxue Yin
- Division of Non-Communicable Disease and Healthy Aging Management, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Chen Mao
- Department of Epidemiology, School of Public Health, Southern Medical University, Guangzhou, China
| | - Qiong Yu
- Department of Epidemiology and Biostatistics, School of Public Health, Jilin University, Changchun, China
| | - Hui Lu
- Department of Bioinformatics and Biostatistics, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, China
| | - Virginia Byers Kraus
- Department of Medicine, Duke Molecular Physiology Institute and Division of Rheumatology, Duke University School of Medicine, Durham, NC, USA
| | - Yi Zeng
- Center for Study of Healthy Aging and Development Studies, Peking University, Beijing, China
| | - Shilu Tong
- China CDC Key Laboratory of Environment and Population Health, National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, #7 Panjiayuan Nanli, Chaoyang, Beijing 100021, China
- School of Public Health and Social Work, Queensland University of Technology, Brisbane, Australia
| | - Xiaoming Shi
- China CDC Key Laboratory of Environment and Population Health, National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, #7 Panjiayuan Nanli, Chaoyang, Beijing 100021, China
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Xiao W, Chen C, Chen HYH. Nitrogen deposition suppresses soil respiration by reducing global belowground activity. Sci Total Environ 2024; 921:171246. [PMID: 38402980 DOI: 10.1016/j.scitotenv.2024.171246] [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: 12/21/2023] [Revised: 02/21/2024] [Accepted: 02/22/2024] [Indexed: 02/27/2024]
Abstract
Soil respiration (Rs) indicates below-ground biological activities. Previous studies have suggested that higher nitrogen (N) deposition due to human activities exerts an increasingly negative effect on Rs. However, the mechanisms underlying this negative effect remain highly uncertain on a global scale. Using a global dataset of 262 N addition experiments, here we show the overall N addition effects on Rs changed from positive to negative with increasing N addition rate and duration. By constructing a structural equation model (SEM) that explained 41 % variation in the responses of Rs to N addition, we revealed that Rs under increasing N addition was simultaneously associated with decreases in soil pH, root biomass and microbial biomass, with the strongest influence by root biomass. Decreasing soil pH had cascading effects on root and microbial biomass, while N-addition-induced root biomass reduction further manifested a decrease in microbial biomass. Across global variations in the environment, lower background soil pH amplified the negative impacts of N addition on root and microbial biomass, which consequently exhilarated the negative impact of high N on Rs. Our results highlight that predicting the response of belowground biological activities to global changes is complex with the essence of integrative understanding for the multivariate pathways through soil physical properties, plants and microorganisms.
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Affiliation(s)
- Wenya Xiao
- School of Emergency Management, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, PR China
| | - Chen Chen
- Faculty of Natural Resources Management, Lakehead University, 955 Oliver Road, Thunder Bay, Ontario P7B 5E1, Canada.
| | - Han Y H Chen
- Faculty of Natural Resources Management, Lakehead University, 955 Oliver Road, Thunder Bay, Ontario P7B 5E1, Canada
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Li X, Chen W, Liu D, Chen P, Wang S, Li F, Chen Q, Lv S, Li F, Chen C, Guo S, Yuan W, Li P, Hu Z. Pathological progression of osteoarthritis: a perspective on subchondral bone. Front Med 2024:10.1007/s11684-024-1061-y. [PMID: 38619691 DOI: 10.1007/s11684-024-1061-y] [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: 11/21/2023] [Accepted: 01/17/2024] [Indexed: 04/16/2024]
Abstract
Osteoarthritis (OA) is a degenerative bone disease associated with aging. The rising global aging population has led to a surge in OA cases, thereby imposing a significant socioeconomic burden. Researchers have been keenly investigating the mechanisms underlying OA. Previous studies have suggested that the disease starts with synovial inflammation and hyperplasia, advancing toward cartilage degradation. Ultimately, subchondral-bone collapse, sclerosis, and osteophyte formation occur. This progression is deemed as "top to bottom." However, recent research is challenging this perspective by indicating that initial changes occur in subchondral bone, precipitating cartilage breakdown. In this review, we elucidate the epidemiology of OA and present an in-depth overview of the subchondral bone's physiological state, functions, and the varied pathological shifts during OA progression. We also introduce the role of multifunctional signal pathways (including osteoprotegerin (OPG)/receptor activator of nuclear factor-kappa B ligand (RANKL)/receptor activator of nuclear factor-kappa B (RANK), and chemokine (CXC motif) ligand 12 (CXCL12)/CXC motif chemokine receptor 4 (CXCR4)) in the pathology of subchondral bone and their role in the "bottom-up" progression of OA. Using vivid pattern maps and clinical images, this review highlights the crucial role of subchondral bone in driving OA progression, illuminating its interplay with the condition.
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Affiliation(s)
- Xuefei Li
- Longhua Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 200032, China
| | - Wenhua Chen
- Research and Development Center of Chinese Medicine Resources and Biotechnology, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China
| | - Dan Liu
- Longhua Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 200032, China
| | - Pinghua Chen
- Longhua Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 200032, China
| | - Shiyun Wang
- Longhua Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 200032, China
| | - Fangfang Li
- Longhua Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 200032, China
| | - Qian Chen
- Longhua Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 200032, China
| | - Shunyi Lv
- Longhua Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 200032, China
| | - Fangyu Li
- Longhua Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 200032, China
| | - Chen Chen
- Longhua Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 200032, China
| | - Suxia Guo
- Longhua Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 200032, China
| | - Weina Yuan
- Longhua Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 200032, China
| | - Pan Li
- Longhua Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 200032, China
| | - Zhijun Hu
- Longhua Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 200032, China.
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Liu C, Yan Q, Ding X, Zhao M, Chen C, Zheng Q, Yang H, Xie Y. Functional modification of recombinant brain-derived neurotrophic factor and its protective effect against neurotoxicity. Int J Biol Macromol 2024; 267:131610. [PMID: 38621565 DOI: 10.1016/j.ijbiomac.2024.131610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2024] [Revised: 04/11/2024] [Accepted: 04/12/2024] [Indexed: 04/17/2024]
Abstract
Brain-derived neurotrophic factor (BDNF) is a neurotrophic protein that promotes neuronal survival, increases neurotransmitter synthesis, and has potential therapeutic effects in neurodegenerative and psychiatric diseases, but its drug development has been limited by the fact that recombinant proteins of BDNF are unstable and do not penetrate the blood-brain barrier (BBB). In this study, we fused a TAT membrane-penetrating peptide with BDNF to express a recombinant protein (TBDNF), which was then PEG-modified to P-TBDNF. Protein characterization showed that P-TBDNF significantly improved the stability of the recombinant protein and possessed the ability to penetrate the BBB, and in cellular experiments, P-TBDNF prevented MPTP-induced nerve cell oxidative stress damage, apoptosis and inflammatory response, and its mechanism of action was closely related to the activation of tyrosine kinase B (TrkB) receptor and inhibition of microglia activation. In animal experiments, P-TBDNF improved motor and cognitive deficits in MPTP mice and inhibited pathological changes in Parkinson's disease (PD). In conclusion, this paper is expected to reveal the mechanism of action of P-TBDNF in inhibiting neurotoxicity, provide a new way for treating PD, and lay the foundation for the future development of recombinant P-TBDNF.
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Affiliation(s)
- Chang Liu
- College of Pharmacy, Beihua University, Jilin, Jilin 132013, PR China.
| | - Qi Yan
- College of Pharmaceutical Science, Jilin University, Changchun 130021, China
| | - Xuying Ding
- College of Pharmacy, Beihua University, Jilin, Jilin 132013, PR China
| | - Meijun Zhao
- Department of Clinical Pharmacy, Affiliated Hospital of Jilin Medical College, Jilin, Jilin 132013, PR China
| | - Chen Chen
- Affiliated Hospital of Yanbian university, Yanji, Jilin 133002, PR China
| | - Qian Zheng
- College of Pharmacy, Beihua University, Jilin, Jilin 132013, PR China
| | - Huiying Yang
- College of Pharmacy, Beihua University, Jilin, Jilin 132013, PR China
| | - Yining Xie
- College of Pharmacy, Beihua University, Jilin, Jilin 132013, PR China
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Chen C, Liang Z, Li X, Xu F, Xu G, Wei F, Yang J, Hu Q, Cen Y. A metal-organic framework and quantum dot-based ratiometric fluorescent probe for the detection of formaldehyde in food. Mikrochim Acta 2024; 191:263. [PMID: 38619658 DOI: 10.1007/s00604-024-06348-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Accepted: 04/04/2024] [Indexed: 04/16/2024]
Abstract
A green and sensitive ratio fluorescence strategy was proposed for the detection of formaldehyde (FA) in food based on a kind of metal-organic frameworks (MOFs), MIL-53(Fe)-NO2, and nitrogen-doped Ti3C2 MXene quantum dots (N-Ti3C2 MQDs) with a blue fluorescence at 450 nm. As a type of MOFs with oxidase-like activity, MIL-53(Fe)-NO2 can catalyze o-phenylenediamine (OPD) into yellow fluorescent product 2,3-diaminophenazine (DAP) with a fluorescent emission at 560 nm. DAP has the ability to suppress the blue light of N-Ti3C2 MQDs due to inner filter effect (IFE). Nevertheless, Schiff base reaction can occur between FA and OPD, inhibiting DAP production. This results in a weakening of the IFE which reverses the original fluorescence color and intensity of DAP and N-Ti3C2 MQDs. So, the ratio of fluorescence intensity detected at respective 450 nm and 560 nm was designed as the readout signal to detect FA in food. The linear range of FA detection was 1-200 µM, with a limit of detection of 0.49 µM. The method developed was successfully used to detect FA in food with satisfactory results. It indicates that MIL-53(Fe)-NO2, OPD, and N-Ti3C2 MQDs (MON) system constructed by integrating the mimics enzyme, enzyme substrate, and fluorescent quantum dots has potential application for FA detection in practical samples.
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Affiliation(s)
- Chen Chen
- School of Pharmacy, Nanjing Medical University, Nanjing, Jiangsu, 211166, People's Republic of China
| | - Zhigang Liang
- School of Pharmacy, Nanjing Medical University, Nanjing, Jiangsu, 211166, People's Republic of China
| | - Xinyang Li
- School of Pharmacy, Nanjing Medical University, Nanjing, Jiangsu, 211166, People's Republic of China
| | - Feifei Xu
- School of Pharmacy, Nanjing Medical University, Nanjing, Jiangsu, 211166, People's Republic of China
| | - Guanhong Xu
- School of Pharmacy, Nanjing Medical University, Nanjing, Jiangsu, 211166, People's Republic of China
- Key Laboratory of Cardiovascular & Cerebrovascular Medicine, School of Pharmacy, Nanjing Medical University, Nanjing, Jiangsu, 211166, People's Republic of China
| | - Fangdi Wei
- School of Pharmacy, Nanjing Medical University, Nanjing, Jiangsu, 211166, People's Republic of China
- Key Laboratory of Cardiovascular & Cerebrovascular Medicine, School of Pharmacy, Nanjing Medical University, Nanjing, Jiangsu, 211166, People's Republic of China
| | - Jing Yang
- School of Pharmacy, Nanjing Medical University, Nanjing, Jiangsu, 211166, People's Republic of China
- Key Laboratory of Cardiovascular & Cerebrovascular Medicine, School of Pharmacy, Nanjing Medical University, Nanjing, Jiangsu, 211166, People's Republic of China
| | - Qin Hu
- School of Pharmacy, Nanjing Medical University, Nanjing, Jiangsu, 211166, People's Republic of China.
- Key Laboratory of Cardiovascular & Cerebrovascular Medicine, School of Pharmacy, Nanjing Medical University, Nanjing, Jiangsu, 211166, People's Republic of China.
| | - Yao Cen
- School of Pharmacy, Nanjing Medical University, Nanjing, Jiangsu, 211166, People's Republic of China.
- Key Laboratory of Cardiovascular & Cerebrovascular Medicine, School of Pharmacy, Nanjing Medical University, Nanjing, Jiangsu, 211166, People's Republic of China.
- Shandong Key Laboratory of Biochemical Analysis, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, Shandong, 266042, People's Republic of China.
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Lai W, Xie R, Chen C, Lou W, Yang H, Deng L, Lu Q, Tang X. Integrated analysis of scRNA-seq and bulk RNA-seq identifies FBXO2 as a candidate biomarker associated with chemoresistance in HGSOC. Heliyon 2024; 10:e28490. [PMID: 38590858 PMCID: PMC10999934 DOI: 10.1016/j.heliyon.2024.e28490] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2023] [Revised: 03/19/2024] [Accepted: 03/20/2024] [Indexed: 04/10/2024] Open
Abstract
Background High-grade serous ovarian carcinoma (HGSOC) is the most prevalent and aggressive histological subtype of epithelial ovarian cancer. Around 80% of individuals will experience a recurrence within five years because of resistance to chemotherapy, despite initially responding well to platinum-based treatment. Biomarkers associated with chemoresistance are desperately needed in clinical practice. Methods We jointly analyzed the transcriptomic profiles of single-cell and bulk datasets of HGSOC to identify cell types associated with chemoresistance. Copy number variation (CNV) inference was performed to identify malignant cells. We subsequently analyzed the expression of candidate biomarkers and their relationship with patients' prognosis. The enrichment analysis and potential biological function of candidate biomarkers were explored. Then, we validated the candidate biomarker using in vitro experiments. Results We identified 8871 malignant epithelial cells in a single-cell RNA sequencing dataset, of which 861 cells were associated with chemoresistance. Among these malignant epithelial cells, FBXO2 (F-box protein 2) is highly expressed in cells related to chemoresistance. Moreover, FBXO2 expression was found to be higher in epithelial cells from chemoresistance samples compared to those from chemosensitivity samples in a separate single-cell RNA sequencing dataset. Patients exhibiting elevated levels of FBXO2 experienced poorer outcomes in terms of both overall survival (OS) and progression-free survival (PFS). FBXO2 could impact chemoresistance by influencing the PI3K-Akt signaling pathway, focal adhesion, and ECM-receptor interactions and regulating tumorigenesis. The 50% maximum inhibitory concentration (IC50) of cisplatin decreased in A2780 and SKOV3 ovarian carcinoma cell lines with silenced FBXO2 during an in vitro experiment. Conclusions We determined that FBXO2 is a potential biomarker linked to chemoresistance in HGSOC by combining single-cell RNA-seq and bulk RNA-seq dataset. Our results suggest that FBXO2 could serve as a valuable prognostic marker and potential target for drug development in HGSOC.
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Affiliation(s)
- Wenwen Lai
- Department of Organ Transplantation, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
- Jiangxi Provincial Key Laboratory of Preventive Medicine, Nanchang University, Nanchang, Jiangxi, China
- Department of Biostatistics and Epidemiology, School of Public Health, Nanchang University, Nanchang, Jiangxi, China
| | - Ruixiang Xie
- School of Life Science, Nanchang University, Nanchang University, Nanchang, China
| | - Chen Chen
- College of Basic Medical Science, Nanchang University, Nanchang, China
| | - Weiming Lou
- Academic Affairs Office, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Haiyan Yang
- Jiangxi Provincial Key Laboratory of Preventive Medicine, Nanchang University, Nanchang, Jiangxi, China
- Department of Biostatistics and Epidemiology, School of Public Health, Nanchang University, Nanchang, Jiangxi, China
| | - Libin Deng
- Jiangxi Provincial Key Laboratory of Preventive Medicine, Nanchang University, Nanchang, Jiangxi, China
- Department of Biostatistics and Epidemiology, School of Public Health, Nanchang University, Nanchang, Jiangxi, China
| | - Quqin Lu
- Jiangxi Provincial Key Laboratory of Preventive Medicine, Nanchang University, Nanchang, Jiangxi, China
- Department of Biostatistics and Epidemiology, School of Public Health, Nanchang University, Nanchang, Jiangxi, China
| | - Xiaoli Tang
- College of Basic Medical Science, Nanchang University, Nanchang, China
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Zhang S, Chen C, Kong D, Zhang Y, Liu K, Shi M, Dong C, Lu Z. Preparation and application of halogen-free and efficient Si/P/N-containing flame retardants on cotton fabrics. Int J Biol Macromol 2024:131612. [PMID: 38631572 DOI: 10.1016/j.ijbiomac.2024.131612] [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: 01/10/2024] [Revised: 04/11/2024] [Accepted: 04/13/2024] [Indexed: 04/19/2024]
Abstract
Cotton fabric is extensively utilized due to its numerous applications, but the flammability associated with cotton fabric poses potential security risks to individuals. A halogen-free efficient flame retardant named poly [(tetramethylcyclosiloxyl spirocyclic pentaerythritol)-piperazin phosphate] (PCPNTSi) was developed to consolidate the fire retardance of cotton fabrics. After PCPNTSi treatment, the limiting oxygen index (LOI) of cotton fabric with 30 % weight gain (CP3) was raised to 32.8 %. In the vertical flammability test (VFT), CP3 has self-extinguished performance with a char length of 8.7 cm. The heat release rate (HRR) of cotton fabric with 20 % weight gain (CP2) is 78.8 % lower than that of pure cotton fabric (CP0). In addition, the total smoke release (TSP) of CP2 is 41.7 % lower than that of CP0, indicating PCPNTSi gives cotton fabric a good capability to inhibit smoke release. Finally, the possible flame retardant mechanism was discussed by the data of scanning electron microscope (SEM), energy dispersive spectrometer (EDS), X-ray photoelectron spectroscopy (XPS), Fourier Transform infrared spectroscopy (FT-IR) and thermogravimetric infrared spectroscopy (TG-IR). The results show that PCPNTSi is an intumescent flame retardant acting in both gas phase and solid phase.
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Affiliation(s)
- Shuangshaung Zhang
- College of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, China
| | - Chen Chen
- College of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, China
| | - Dezheng Kong
- College of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, China
| | - Yufan Zhang
- College of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, China
| | - Kexian Liu
- College of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, China
| | - Meng Shi
- College of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, China
| | - Chaohong Dong
- College of Textile and Clothing, Institute of Functional Textiles and Advanced Materials, Qingdao University, Qingdao 266071, China.
| | - Zhou Lu
- College of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, China.
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Chen C, Zhang D, Huang S, Zeng F, Li D, Zhang X, Chen R, Chen S, Wang J, Bai F. Comparison of vonoprazan dual therapy, quadruple therapy and standard quadruple therapy for Helicobacter pylori infection in Hainan: a single-center, open-label, non-inferiority, randomized controlled trial. BMC Gastroenterol 2024; 24:131. [PMID: 38609893 PMCID: PMC11010374 DOI: 10.1186/s12876-024-03225-8] [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] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Accepted: 04/09/2024] [Indexed: 04/14/2024] Open
Abstract
OBJECTIVE To compare the potential efficacy and safety of dual therapy and quadruple therapy with vonoprazan (VPZ) as well as the standard quadruple therapy of proton pump inhibitor (PPI) for the eradication of Helicobacter pylori (Hp) infection in Hainan province. METHODS A single-centre, non-blinded, non-inferiority randomized controlled trial was conducted at the outpatient department of gastroenterology at the Second Affiliated Hospital of Hainan Medical University from June 2022 to February 2023. 135 patients aged 18-75 years with Hp infection were enrolled and randomized into three different groups (group V1: VPZ 20 mg twice a day and amoxicillin 1.0 g three times a day for 14 days V2: vonoprazan 20 mg, amoxicillin capsules 1.0 g, furazolidone 0.1 g and bismuth potassiulm citrate 240 mg, twice daily for 14 days;; group V3: ilaprazole 5 mg, Amoxicillin 1.0 g, Furazolidone 100 mg, bismuth potassiulm citrate 240 mg, twice a day for 14 days). Four weeks after the end of treatment, Hp eradication was confirmed by rechecking 13C-urea breath test (UBT). RESULTS The eradication efficacy of V1 and V3 was non-inferior to that of V2, which is consistent with the results obtained from the Kruskal-Wallis H test. The eradication rate by intentional analysis was 84.4% (38/45, 95%CI 73.4%-95.5%, P>0.05) for all the three groups. If analyzed by per-protocol, the eradication rates were 88.4% (38/43, 95%CI 78.4%-98.4%), 92.7% (38/41, 95%CI 84.4%-101.0%),88.4% (38/43,95%CI 78.4%-98.4%) in groups V1, V2 and V3, respectively, which did not show a significant difference (P > 0.05). The incidence of adverse effects was significantly lower in VPZ dual therapy compared to the other two treatment regimens (P < 0.05). VPZ dual therapy or quadruple therapy was also relatively less costly than standard quadruple therapy. CONCLUSION VPZ dual therapy and quadruple therapy shows promise of not being worse than the standard quadruple therapy by a clinically relevant margin. More studies might be needed to definitively determine if the new therapy is equally effective or even superior.
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Affiliation(s)
- Chen Chen
- Graduate School, Hainan Medical University, Haikou, 571199, China
| | - Daya Zhang
- Graduate School, Hainan Medical University, Haikou, 571199, China
| | - Shimei Huang
- Graduate School, Hainan Medical University, Haikou, 571199, China
| | - Fan Zeng
- Graduate School, Hainan Medical University, Haikou, 571199, China
| | - Da Li
- Graduate School, Hainan Medical University, Haikou, 571199, China
| | - Xiaodong Zhang
- Graduate School, Hainan Medical University, Haikou, 571199, China
| | - Runxiang Chen
- Graduate School, Hainan Medical University, Haikou, 571199, China
| | - Shiju Chen
- Graduate School, Hainan Medical University, Haikou, 571199, China
| | - Jun Wang
- Department of Gastroenterology, The 986 Hospital of Xijing Hospital, Air Force Military Medical University, Xi'an, 710054, Shanxi, China.
| | - Feihu Bai
- Department of Gastroenterology, The Second Affiliated Hospital of Hainan Medical University, Yehai Avenue, #368, Longhua District, Haikou, 570216, Hainan Province, China.
- The Gastroenterology Clinical Medical Center of Hainan Province, Haikou, 570216, China.
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Hao X, Zhu M, Sun Z, Li P, Meng Q, Tan L, Chen C, Zhang Y, Yang L, Zhang J, Huang Y. Systemic immune-inflammation index is associated with cardiac complications following acute ischemic stroke: A retrospective single-center study. Clin Neurol Neurosurg 2024; 241:108285. [PMID: 38636361 DOI: 10.1016/j.clineuro.2024.108285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2024] [Revised: 03/31/2024] [Accepted: 04/11/2024] [Indexed: 04/20/2024]
Abstract
BACKGROUND Stroke-induced heart syndrome is a feared complication of ischemic stroke, that is commonly encountered and has a strong association with unfavorable prognosis. More research is needed to explore underlying mechanisms and inform clinical decision making. This study aims to explore the relationship between the early systemic immune-inflammation (SII) index and the cardiac complications after acute ischemic stroke. METHODS Consecutive patients with acute ischemic stroke were prospectively collected from January 2020 to August 2022 and retrospectively analyzed. We included subjects who presented within 24 hours after symptom onset and were free of detectable infections or cancer on admission. SII index [(neutrophils × platelets/ lymphocytes)/1000] was calculated from laboratory data at admission. RESULTS A total of 121 patients were included in our study, of which 24 (19.8 %) developed cardiac complications within 14 days following acute ischemic stroke. The SII level was found higher in patients with stroke-heart syndrome (p<.001), which was an independent predictor of stroke-heart syndrome (adjusted odds ratio 5.089, p=.002). CONCLUSION New-onset cardiovascular complications diagnosed following a stroke are very common and are associated with early SII index.
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Affiliation(s)
- Xiaodi Hao
- Department of Neurology, Zhengzhou University People's Hospital, Zhengzhou University, Zhengzhou, Henan 450003, China
| | - Mingfang Zhu
- Department of Neurology, Zhengzhou University People's Hospital, Zhengzhou University, Zhengzhou, Henan 450003, China
| | - Zhengyu Sun
- Department of Neurology, Zhengzhou University People's Hospital, Zhengzhou University, Zhengzhou, Henan 450003, China
| | - Penghui Li
- Department of Neurology, Zhengzhou University People's Hospital, Zhengzhou University, Zhengzhou, Henan 450003, China
| | - Qi Meng
- Department of Neurology, Zhengzhou University People's Hospital, Zhengzhou University, Zhengzhou, Henan 450003, China
| | - Leilei Tan
- Department of Neurology, Zhengzhou University People's Hospital, Zhengzhou University, Zhengzhou, Henan 450003, China
| | - Chen Chen
- Department of Neurology, Zhengzhou University People's Hospital, Zhengzhou University, Zhengzhou, Henan 450003, China
| | - Yakun Zhang
- Department of Neurology, Zhengzhou University People's Hospital, Zhengzhou University, Zhengzhou, Henan 450003, China
| | - Lihua Yang
- Department of Neurology, Zhengzhou University People's Hospital, Zhengzhou University, Zhengzhou, Henan 450003, China
| | - Jiewen Zhang
- Department of Neurology, Zhengzhou University People's Hospital, Zhengzhou University, Zhengzhou, Henan 450003, China.
| | - Yue Huang
- Department of Neurology, Zhengzhou University People's Hospital, Zhengzhou University, Zhengzhou, Henan 450003, China.
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Liang Z, Bao H, Yao Z, Li M, Chen C, Zhang L, Wang H, Guo Y, Ma Y, Yang X, Yu G, Zhang J, Xue C, Sun B, Mao C. The orientation of CpG conjugation on aluminum oxyhydroxide nanoparticles determines the immunostimulatory effects of combination adjuvants. Biomaterials 2024; 308:122569. [PMID: 38626556 DOI: 10.1016/j.biomaterials.2024.122569] [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: 01/27/2024] [Revised: 03/29/2024] [Accepted: 04/08/2024] [Indexed: 04/18/2024]
Abstract
In subunit vaccines, aluminum salts (Alum) are commonly used as adjuvants, but with limited cellular immune responses. To overcome this limitation, CpG oligodeoxynucleotides (ODNs) have been used in combination with Alum. However, current combined usage of Alum and CpG is limited to linear mixtures, and the underlying interaction mechanism between CpG and Alum is not well understood. Thus, we propose to chemically conjugate Alum nanoparticles and CpG (with 5' or 3' end exposed) to design combination adjuvants. Our study demonstrates that compared to the 3'-end exposure, the 5'-end exposure of CpG in combination adjuvants (Al-CpG-5') enhances the activation of bone-marrow derived dendritic cells (BMDCs) and promotes Th1 and Th2 cytokine secretion. We used the SARS-CoV-2 receptor binding domain (RBD) and hepatitis B surface antigen (HBsAg) as model antigens to demonstrate that Al-CpG-5' enhanced antigen-specific antibody production and upregulated cytotoxic T lymphocyte markers. Additionally, Al-CpG-5' allows for coordinated adaptive immune responses even at lower doses of both CpG ODNs and HBsAg antigens, and enhances lymph node transport of antigens and activation of dendritic cells, promoting Tfh cell differentiation and B cell activation. Our novel Alum-CPG strategy points the way towards broadening the use of nanoadjuvants for both prophylactic and therapeutic vaccines.
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Affiliation(s)
- Zhihui Liang
- Frontiers Science Center for Smart Materials Oriented Chemical Engineering, State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian, 116024, PR China; Department of Biomedical Engineering, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong SAR, PR China
| | - Hang Bao
- School of Bioengineering, Dalian University of Technology, Dalian 116024, PR China
| | - Zhiying Yao
- Frontiers Science Center for Smart Materials Oriented Chemical Engineering, State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian, 116024, PR China
| | - Min Li
- Frontiers Science Center for Smart Materials Oriented Chemical Engineering, State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian, 116024, PR China
| | - Chen Chen
- School of Bioengineering, Dalian University of Technology, Dalian 116024, PR China
| | - Lei Zhang
- Frontiers Science Center for Smart Materials Oriented Chemical Engineering, State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian, 116024, PR China
| | - Huiyang Wang
- Frontiers Science Center for Smart Materials Oriented Chemical Engineering, State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian, 116024, PR China
| | - Yiyang Guo
- Frontiers Science Center for Smart Materials Oriented Chemical Engineering, State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian, 116024, PR China
| | - Yubin Ma
- Frontiers Science Center for Smart Materials Oriented Chemical Engineering, State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian, 116024, PR China
| | - Xuecheng Yang
- Frontiers Science Center for Smart Materials Oriented Chemical Engineering, State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian, 116024, PR China
| | - Ge Yu
- Frontiers Science Center for Smart Materials Oriented Chemical Engineering, State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian, 116024, PR China
| | - Jiancheng Zhang
- AIM Honesty Biopharmaceutical Co., Ltd, Dalian, 116100, PR China
| | - Changying Xue
- School of Bioengineering, Dalian University of Technology, Dalian 116024, PR China.
| | - Bingbing Sun
- Frontiers Science Center for Smart Materials Oriented Chemical Engineering, State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian, 116024, PR China.
| | - Chuanbin Mao
- Department of Biomedical Engineering, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong SAR, PR China.
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Chen C, Liu Q, Li Y, Yu JW, Wang SD, Xu JL, Liu L. Circulating microRNA-33b levels are associated with the presence and severity of coronary heart disease. Scand J Clin Lab Invest 2024:1-5. [PMID: 38597780 DOI: 10.1080/00365513.2024.2340751] [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: 10/04/2023] [Accepted: 01/07/2024] [Indexed: 04/11/2024]
Abstract
MicroRNA-33b (miR-33b) affected various biological pathways in regulating cholesterol homeostasis which may link to the pathogenesis of atherosclerotic lesions. However, whether this marker is associated with the presence and severity of coronary heart disease (CHD) is undetermined. We aim to explore the diagnostic value of circulating miR-33b level in the presence and severity of CHD. Altogether 320 patients were enrolled, including 240 patients diagnosed with CHD while 80 were classified as controls after CAG examination. Circulating miR-33b level was analyzed in all subjects, the Gensini score was calculated to assess the severity of stenotic lesions. The association between miR-33b and the presence and severity of CHD was analyzed, and the diagnostic potential of miR-33b of CHD was performed by the receiver operating characteristic (ROC) analysis. The CHD group had higher miR-33b levels (p < 0.001), and the miR-33b content significantly elevated following an increasing Gensini score (p for trend < 0.001). After adjustments for potential risk factors, such as several blood lipid markers, miR-33b remained a significant determinant for CHD (p < 0.001). ROC analysis disclosed that the AUC was 0.931. The optimal cutoff value of miR-33b was with a sensitivity of 81.3% and a specificity of 98.7% in differentiating CHD. It can prognosticate that the higher level of miR-33b was linked to increased severity of disease in CHD patients. Thus, the application of this marker might assist in the diagnosis and classification of CHD patients. Nevertheless, additional studies with larger sample sizes will be required to verify these results.
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Affiliation(s)
- Chen Chen
- The First Department of Cardiovascular, First Affiliated Hospital of Heilongjiang University of Chinese Medicine, Harbin, China
| | - Qi Liu
- Department of the Treatment Center, Second Affiliated Hospital of Heilongjiang University of Traditional Chinese Medicine, Harbin, China
| | - Yao Li
- Department of the Graduate School, Heilongjiang University of Traditional Chinese Medicine, Harbin, China
| | - Jing-Wen Yu
- Department of the Graduate School, Heilongjiang University of Traditional Chinese Medicine, Harbin, China
| | - Shu-Di Wang
- Department of the Graduate School, Heilongjiang University of Traditional Chinese Medicine, Harbin, China
| | - Jia-Li Xu
- Department of the Graduate School, Heilongjiang University of Traditional Chinese Medicine, Harbin, China
| | - Li Liu
- The First Department of Cardiovascular, First Affiliated Hospital of Heilongjiang University of Chinese Medicine, Harbin, China
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Luo X, Chen C, He Z, Wang M, Pan K, Dong X, Li Z, Liu B, Zhang Z, Wu Y, Ban C, Chen R, Zhang D, Wang K, Wang Q, Li J, Lu G, Liu J, Liu Z, Huang W. A bionic self-driven retinomorphic eye with ionogel photosynaptic retina. Nat Commun 2024; 15:3086. [PMID: 38600063 PMCID: PMC11006927 DOI: 10.1038/s41467-024-47374-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Accepted: 03/27/2024] [Indexed: 04/12/2024] Open
Abstract
Bioinspired bionic eyes should be self-driving, repairable and conformal to arbitrary geometries. Such eye would enable wide-field detection and efficient visual signal processing without requiring external energy, along with retinal transplantation by replacing dysfunctional photoreceptors with healthy ones for vision restoration. A variety of artificial eyes have been constructed with hemispherical silicon, perovskite and heterostructure photoreceptors, but creating zero-powered retinomorphic system with transplantable conformal features remains elusive. By combining neuromorphic principle with retinal and ionoelastomer engineering, we demonstrate a self-driven hemispherical retinomorphic eye with elastomeric retina made of ionogel heterojunction as photoreceptors. The receptor driven by photothermoelectric effect shows photoperception with broadband light detection (365 to 970 nm), wide field-of-view (180°) and photosynaptic (paired-pulse facilitation index, 153%) behaviors for biosimilar visual learning. The retinal photoreceptors are transplantable and conformal to any complex surface, enabling visual restoration for dynamic optical imaging and motion tracking.
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Affiliation(s)
- Xu Luo
- Key Laboratory of Flexible Electronics (KLoFE) & Institute of Advanced Materials (IAM), School of Flexible Electronics (Future Technologies), Nanjing Tech University (NanjingTech), Nanjing, China
| | - Chen Chen
- Key Laboratory of Flexible Electronics (KLoFE) & Institute of Advanced Materials (IAM), School of Flexible Electronics (Future Technologies), Nanjing Tech University (NanjingTech), Nanjing, China
| | - Zixi He
- Key Laboratory of Flexible Electronics (KLoFE) & Institute of Advanced Materials (IAM), School of Flexible Electronics (Future Technologies), Nanjing Tech University (NanjingTech), Nanjing, China
| | - Min Wang
- Key Laboratory of Flexible Electronics (KLoFE) & Institute of Advanced Materials (IAM), School of Flexible Electronics (Future Technologies), Nanjing Tech University (NanjingTech), Nanjing, China
| | - Keyuan Pan
- Key Laboratory of Flexible Electronics (KLoFE) & Institute of Advanced Materials (IAM), School of Flexible Electronics (Future Technologies), Nanjing Tech University (NanjingTech), Nanjing, China
| | - Xuemei Dong
- Key Laboratory of Flexible Electronics (KLoFE) & Institute of Advanced Materials (IAM), School of Flexible Electronics (Future Technologies), Nanjing Tech University (NanjingTech), Nanjing, China
| | - Zifan Li
- Key Laboratory of Flexible Electronics (KLoFE) & Institute of Advanced Materials (IAM), School of Flexible Electronics (Future Technologies), Nanjing Tech University (NanjingTech), Nanjing, China
| | - Bin Liu
- Key Laboratory of Flexible Electronics (KLoFE) & Institute of Advanced Materials (IAM), School of Flexible Electronics (Future Technologies), Nanjing Tech University (NanjingTech), Nanjing, China
| | - Zicheng Zhang
- Key Laboratory of Flexible Electronics (KLoFE) & Institute of Advanced Materials (IAM), School of Flexible Electronics (Future Technologies), Nanjing Tech University (NanjingTech), Nanjing, China
| | - Yueyue Wu
- Key Laboratory of Flexible Electronics (KLoFE) & Institute of Advanced Materials (IAM), School of Flexible Electronics (Future Technologies), Nanjing Tech University (NanjingTech), Nanjing, China
| | - Chaoyi Ban
- Key Laboratory of Flexible Electronics (KLoFE) & Institute of Advanced Materials (IAM), School of Flexible Electronics (Future Technologies), Nanjing Tech University (NanjingTech), Nanjing, China
| | - Rong Chen
- Key Laboratory of Flexible Electronics (KLoFE) & Institute of Advanced Materials (IAM), School of Flexible Electronics (Future Technologies), Nanjing Tech University (NanjingTech), Nanjing, China
| | - Dengfeng Zhang
- Key Laboratory of Flexible Electronics (KLoFE) & Institute of Advanced Materials (IAM), School of Flexible Electronics (Future Technologies), Nanjing Tech University (NanjingTech), Nanjing, China
| | - Kaili Wang
- Key Laboratory of Flexible Electronics (KLoFE) & Institute of Advanced Materials (IAM), School of Flexible Electronics (Future Technologies), Nanjing Tech University (NanjingTech), Nanjing, China
| | - Qiye Wang
- Key Laboratory of Flexible Electronics (KLoFE) & Institute of Advanced Materials (IAM), School of Flexible Electronics (Future Technologies), Nanjing Tech University (NanjingTech), Nanjing, China
| | - Junyue Li
- Key Laboratory of Flexible Electronics (KLoFE) & Institute of Advanced Materials (IAM), School of Flexible Electronics (Future Technologies), Nanjing Tech University (NanjingTech), Nanjing, China
| | - Gang Lu
- Key Laboratory of Flexible Electronics (KLoFE) & Institute of Advanced Materials (IAM), School of Flexible Electronics (Future Technologies), Nanjing Tech University (NanjingTech), Nanjing, China
| | - Juqing Liu
- Key Laboratory of Flexible Electronics (KLoFE) & Institute of Advanced Materials (IAM), School of Flexible Electronics (Future Technologies), Nanjing Tech University (NanjingTech), Nanjing, China.
| | - Zhengdong Liu
- Key Laboratory of Flexible Electronics (KLoFE) & Institute of Advanced Materials (IAM), School of Flexible Electronics (Future Technologies), Nanjing Tech University (NanjingTech), Nanjing, China.
| | - Wei Huang
- Key Laboratory of Flexible Electronics (KLoFE) & Institute of Advanced Materials (IAM), School of Flexible Electronics (Future Technologies), Nanjing Tech University (NanjingTech), Nanjing, China.
- Frontiers Science Center for Flexible Electronics, Institute of Flexible Electronics (IFE), Northwestern Polytechnical University, Xi'an, China.
- State Key Laboratory of Organic Electronics and Information Displays, Nanjing University of Posts and Telecommunications, Nanjing, China.
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Yan Z, Chang C, Kang Z, Chen C, Lv X, Chen C. Application of one-dimensional hierarchical network assisted screening for cervical cancer based on Raman spectroscopy combined with attention mechanism. Photodiagnosis Photodyn Ther 2024:104086. [PMID: 38608802 DOI: 10.1016/j.pdpdt.2024.104086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Revised: 04/07/2024] [Accepted: 04/10/2024] [Indexed: 04/14/2024]
Abstract
Cervical cancer is one of the most common malignant tumors among women, and its pathological change is a relatively slow process. If it can be detected in time and treated properly, it can effectively reduce the incidence rate and mortality rate of cervical cancer, so the early screening of cervical cancer is particularly critical and significant. In this paper, we used Raman spectroscopy technology to collect the tissue sample data of patients with cervicitis, Low-grade Squamous Intraepithelial Lesion, High-grade Squamous Intraepithelial Lesion, Well differentiated squamous cell carcinoma, Moderately differentiated squamous cell carcinoma, Poorly differentiated squamous cell carcinoma and cervical adenocarcinoma. A one-dimensional hierarchical convolutional neural network based on attention mechanism was constructed to classify and identify seven types of tissue samples. The attention mechanism Efficient Channel Attention Networks module and Squeeze-and-Excitation Networks module were combined with the established one-dimensional convolutional hierarchical network model, and the results showed that the combined model had better diagnostic performance. The average accuracy, F1, and AUC of the Principal Component Analysis-Squeeze and Excitation-hierarchical network model after 5-fold cross validations could reach 96.49%±2.12%, 0.9663±0.0253, and 0.9815±0.0224, respectively, which were 1.58%, 0.0140, and 0.008 higher than those of hierarchical network. The recall rate of the Principal Component Analysis-Efficient Channel Attention-hierarchical network model was as high as 96.78%±2.85%, which is 1.47% higher than hierarchical network. Compared with the classification results of traditional CNN and ResNet for seven types of cervical cancer staging, the accuracy of the Principal Component Analysis-Squeeze and Excitation-hierarchical network model is 3.33% and 11.05% higher, respectively. The experimental results indicate that the model established in this study is easy to operate and has high accuracy. It has good reference value for rapid screening of cervical cancer, laying a foundation for further research on Raman spectroscopy as a clinical diagnostic method for cervical cancer.
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Affiliation(s)
- Ziwei Yan
- College of Software, Xinjiang University, Urumqi, China
| | - Chenjie Chang
- School of Computer Science and Technology, Xinjiang University, Urumqi, China
| | - Zhenping Kang
- School of Computer Science and Technology, Xinjiang University, Urumqi, China
| | - Chen Chen
- College of Software, Xinjiang University, Urumqi, China
| | - Xiaoyi Lv
- School of Computer Science and Technology, Xinjiang University, Urumqi, China
| | - Cheng Chen
- College of Software, Xinjiang University, Urumqi, China.
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Wang Y, Gao L, Wang F, Yu C, Chen C, Xia C. GPRC5A promotes paclitaxel resistance and glucose content in NSCLC. Anticancer Drugs 2024:00001813-990000000-00275. [PMID: 38602327 DOI: 10.1097/cad.0000000000001610] [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] [Subscribe] [Scholar Register] [Indexed: 04/12/2024]
Abstract
Lung cancer is one of the most common and malignant cancers worldwide. Chemotherapy has been widely used in the clinical setting, and paclitaxel is the first-line therapy for lung cancer patients but paclitaxel resistance is the main problem. First, we successfully established paclitaxel-resistant lung cancer cells treated with elevated doses of paclitaxel for 3 months, as confirmed by the CCK-8 assay. Paclitaxel-resistant cancer cells increased glucose content. Second, Gtex, Oncomine, and gene expression omnibus database data mining identified GPRC5A, G protein-coupled receptor, as the most prominent differentially expressed gene in drug-resistant datasets including gemcitabine, paclitaxel, and gefitinib overlapped with the microarray data from cancer cell metabolism. Third, qPCR analysis and western blot technique showed that GPRC5A mRNA and protein levels were significantly enhanced in paclitaxel-resistant lung cancer cells. Fourth, functional analysis was conducted by siRNA-mediated transient knockdown of GPRC5A. Silencing GPRC5A significantly decreased paclitaxel resistance and glucose content. In the end, retinoic acid substantially upregulated GPRC5A proteins and promoted glucose content in two lung cancer cells. Kaplan-Meier plot also confirmed that lung cancer patients with high expression of GPRC5A had a relatively lower survival rate. Our study provided a potential drug target GPRC5A, which may benefit lung cancer patients with acquired paclitaxel resistance in the future and a theoretical basis for future preclinical trials.
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Affiliation(s)
- Yan Wang
- Department of Respiratory Medicine, Intensive Care Unit, The Affiliated Brain Hospital of Nanjing Medical University, Nanjing
| | - Liang Gao
- Life Science and Health Engineering Department, Jiangnan University, Wuxi
| | - Feiyu Wang
- Life Science and Health Engineering Department, Jiangnan University, Wuxi
| | - Cunjun Yu
- Department of Respiratory Medicine, The Affiliated Brain Hospital of Nanjing Medical University, Nanjing, China
| | - Chen Chen
- Life Science and Health Engineering Department, Jiangnan University, Wuxi
| | - Chunwei Xia
- Department of Respiratory Medicine, The Affiliated Brain Hospital of Nanjing Medical University, Nanjing, China
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Gao X, Lin B, Chen C, Fang Z, Yang J, Wu S, Chen Q, Zheng K, Yu Z, Li Y, Gao X, Lin G, Chen L. Lycopene from tomatoes and tomato products exerts renoprotective effects by ameliorating oxidative stress, apoptosis, pyroptosis, fibrosis, and inflammatory injury in calcium oxalate nephrolithiasis: the underlying mechanisms. Food Funct 2024. [PMID: 38584465 DOI: 10.1039/d4fo00042k] [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] [Subscribe] [Scholar Register] [Indexed: 04/09/2024]
Abstract
Several mechanisms underlying nephrolithiasis, one of the most common urological diseases, involve calcium oxalate formation, including oxidative stress, inflammatory reactions, fibrosis, pyroptosis, and apoptosis. Although lycopene has strong antioxidant activity, its protective effects against CaOx-induced injury have not yet been reported. This study aimed to systematically investigate the protective effects of lycopene and explore its mechanisms and molecular targets. Crystal deposition, renal function, oxidative stress, inflammatory response, fibrosis, pyroptosis, and apoptosis were assessed to evaluate the renoprotective effects of lycopene against crystal formation in a CaOx rat model and oxalate-stimulated NRK-52E and HK-2 cells. Lycopene markedly ameliorated crystal deposition, restored renal function, and suppressed kidney injury by reducing oxidative stress, apoptosis, inflammation, fibrosis, and pyroptosis in the rats. In cell models, lycopene pretreatment reversed reactive oxygen species increase, apoptotic damage, intracellular lactate dehydrogenase release, cytotoxicity, pyroptosis, and extracellular matrix deposition. Network pharmacology and proteomic analyses were performed to identify lycopene target proteins under CaOx-exposed conditions, and the results showed that Trappc4 might be a pivotal target gene for lycopene, as identified by cellular thermal shift assay and surface plasmon resonance analyses. Based on molecular docking, molecular dynamics simulations, alanine scanning mutagenesis, and saturation mutagenesis, we observed that lycopene directly interacts with Trappc4 via hydrophobic bonds, which may be attributed to the PHE4 and PHE142 residues, preventing ERK1/2 or elevating AMPK signaling pathway phosphorylation events. In conclusion, lycopene might ameliorate oxalate-induced renal tubular epithelial cell injury via the Trappc4/ERK1/2/AMPK pathway, indicating its potential for the treatment of nephrolithiasis.
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Affiliation(s)
- Xiaomin Gao
- Department of Urology, The First Affiliated Hospital of Wenzhou Medical University, Southern Baixiang, OuHai District, Wenzhou, Zhejiang, 325006, P.R. China.
| | - Binwei Lin
- Department of Urology, Rui'an People's Hospital, The Third Affiliated Hospital of the Wenzhou Medical University, Wenzhou, Zhejiang province, 325200, P.R. China
| | - Chen Chen
- Department of Pharmacy, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325006, P.R. China.
- Key Laboratory of Diagnosis and Treatment of Severe Hepato-Pancreatic Diseases of Zhejiang Province, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325006, P.R. China
| | - Ziyu Fang
- Department of Urology, Changhai Hospital, Navy Medical University, Changhai Road, YangPu District, Shanghai, 200433, P.R. China.
| | - Jinzhao Yang
- The Department of Pharmacy, The Third Clinical Institute Affiliated to Wenzhou Medical University (Wenzhou People's Hospital), Wenzhou, Zhejiang, 325006, P.R. China
| | - Shuzhi Wu
- The Department of Neurology, The Third Clinical Institute Affiliated to Wenzhou Medical University (Wenzhou People's Hospital), Wenzhou, Zhejiang, 325006, P.R. China
| | - Qing Chen
- Department of Pharmacy, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325006, P.R. China.
- Key Laboratory of Diagnosis and Treatment of Severe Hepato-Pancreatic Diseases of Zhejiang Province, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325006, P.R. China
| | - Kewen Zheng
- Department of Urology, The First Affiliated Hospital of Wenzhou Medical University, Southern Baixiang, OuHai District, Wenzhou, Zhejiang, 325006, P.R. China.
| | - Zhixian Yu
- Department of Urology, The First Affiliated Hospital of Wenzhou Medical University, Southern Baixiang, OuHai District, Wenzhou, Zhejiang, 325006, P.R. China.
| | - Yeping Li
- Department of Urology, The First Affiliated Hospital of Wenzhou Medical University, Southern Baixiang, OuHai District, Wenzhou, Zhejiang, 325006, P.R. China.
| | - Xiaofeng Gao
- Department of Urology, Changhai Hospital, Navy Medical University, Changhai Road, YangPu District, Shanghai, 200433, P.R. China.
| | - Guanyang Lin
- Department of Pharmacy, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325006, P.R. China.
- Key Laboratory of Diagnosis and Treatment of Severe Hepato-Pancreatic Diseases of Zhejiang Province, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325006, P.R. China
| | - Lianguo Chen
- Department of Pharmacy, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325006, P.R. China.
- Key Laboratory of Diagnosis and Treatment of Severe Hepato-Pancreatic Diseases of Zhejiang Province, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325006, P.R. China
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Chen C, Xu JL, Gu ZC, Zhou SS, Wei GL, Gu JL, Ma HL, Feng YQ, Song ZW, Yan ZP, Deng S, Ding R, Li SL, Huo JG. Danggui Sini decoction alleviates oxaliplatin-induced peripheral neuropathy by regulating gut microbiota and potentially relieving neuroinflammation related metabolic disorder. Chin Med 2024; 19:58. [PMID: 38584284 PMCID: PMC10999090 DOI: 10.1186/s13020-024-00929-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Accepted: 04/01/2024] [Indexed: 04/09/2024] Open
Abstract
BACKGROUND Danggui Sini decoction (DSD), a traditional Chinese medicine formula, has the function of nourishing blood, warming meridians, and unblocking collaterals. Our clinical and animal studies had shown that DSD can effectively protect against oxaliplatin (OXA)-induced peripheral neuropathy (OIPN), but the detailed mechanisms remain uncertain. Multiple studies have confirmed that gut microbiota plays a crucial role in the development of OIPN. In this study, the potential mechanism of protective effect of DSD against OIPN by regulating gut microbiota was investigated. METHODS The neuroprotective effects of DSD against OIPN were examined on a rat model of OIPN by determining mechanical allodynia, biological features of dorsal root ganglia (DRG) as well as proinflammatory indicators. Gut microbiota dysbiosis was characterized using 16S rDNA gene sequencing and metabolism disorders were evaluated using untargeted and targeted metabolomics. Moreover the gut microbiota mediated mechanisms were validated by antibiotic intervention and fecal microbiota transplantation. RESULTS DSD treatment significantly alleviated OIPN symptoms by relieving mechanical allodynia, preserving DRG integrity and reducing proinflammatory indicators lipopolysaccharide (LPS), IL-6 and TNF-α. Besides, DSD restored OXA induced intestinal barrier disruption, gut microbiota dysbiosis as well as systemic metabolic disorders. Correlation analysis revealed that DSD increased bacterial genera such as Faecalibaculum, Allobaculum, Dubosiella and Rhodospirillales_unclassified were closely associated with neuroinflammation related metabolites, including positively with short-chain fatty acids (SCFAs) and sphingomyelin (d18:1/16:0), and negatively with pi-methylimidazoleacetic acid, L-glutamine and homovanillic acid. Meanwhile, antibiotic intervention apparently relieved OIPN symptoms. Furthermore, fecal microbiota transplantation further confirmed the mediated effects of gut microbiota. CONCLUSION DSD alleviates OIPN by regulating gut microbiota and potentially relieving neuroinflammation related metabolic disorder.
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Affiliation(s)
- Chen Chen
- Department of Oncology, Yancheng TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Yancheng, 224001, Jiangsu, China
- Department of Oncology, Yancheng TCM Hospital, Yancheng, 224001, Jiangsu, China
- The Third Clinical Medical College, Nanjing University of Chinese Medicine, Nanjing, 210023, Jiangsu, China
| | - Jian-Lin Xu
- Department of Oncology, Yancheng TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Yancheng, 224001, Jiangsu, China
- Department of Oncology, Yancheng TCM Hospital, Yancheng, 224001, Jiangsu, China
| | - Zhan-Cheng Gu
- Department of Oncology, Kunshan Hospital of Traditional Chinese Medicine, Suzhou, 215399, China
| | - Shan-Shan Zhou
- Department of Pharmaceutical Analysis, Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, No. 100 Shizi Street Hongshan Road, Nanjing, 210028, Jiangsu, China
- Department of Metabolomics, Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing, 210028, Jiangsu, China
| | - Guo-Li Wei
- Department of Oncology, Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, No. 100 Shizi Street Hongshan Road, Nanjing, 210028, Jiangsu, China
- Department of Oncology, Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing, 210028, Jiangsu, China
- Department of Oncology, Nanjing Lishui District Hospital of Traditional Chinese Medicine, Nanjing, 211299, Jiangsu, China
| | - Jia-Lin Gu
- The Third Clinical Medical College, Nanjing University of Chinese Medicine, Nanjing, 210023, Jiangsu, China
| | - Hai-Long Ma
- Department of Paediatrics, Yancheng TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Yancheng, 224001, Jiangsu, China
| | - Yan-Qi Feng
- The Third Clinical Medical College, Nanjing University of Chinese Medicine, Nanjing, 210023, Jiangsu, China
| | - Zi-Wei Song
- The Third Clinical Medical College, Nanjing University of Chinese Medicine, Nanjing, 210023, Jiangsu, China
| | - Zhan-Peng Yan
- Clinical Research Department of Chinese and Western Medicine, Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing, 210028, Jiangsu, China
| | - Shan Deng
- Department of Oncology, Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, No. 100 Shizi Street Hongshan Road, Nanjing, 210028, Jiangsu, China
- Department of Oncology, Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing, 210028, Jiangsu, China
| | - Rong Ding
- Department of Oncology, Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, No. 100 Shizi Street Hongshan Road, Nanjing, 210028, Jiangsu, China
- Department of Oncology, Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing, 210028, Jiangsu, China
| | - Song-Lin Li
- Department of Pharmaceutical Analysis, Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, No. 100 Shizi Street Hongshan Road, Nanjing, 210028, Jiangsu, China.
- Department of Metabolomics, Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing, 210028, Jiangsu, China.
| | - Jie-Ge Huo
- Department of Oncology, Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, No. 100 Shizi Street Hongshan Road, Nanjing, 210028, Jiangsu, China.
- Department of Oncology, Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing, 210028, Jiangsu, China.
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Chang C, Liu H, Chen C, Wu L, Lv X, Xie X, Chen C. Rapid diagnosis of systemic lupus erythematosus by Raman spectroscopy combined with spiking neural network. Spectrochim Acta A Mol Biomol Spectrosc 2024; 310:123904. [PMID: 38262298 DOI: 10.1016/j.saa.2024.123904] [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: 09/04/2023] [Revised: 11/30/2023] [Accepted: 01/15/2024] [Indexed: 01/25/2024]
Abstract
Multiple organs are affected by the autoimmune inflammatory connective tissue disease known as systemic lupus erythematosus (SLE). If not diagnosed and treated in a timely manner, it can lead to nephritis and damage to the blood system in severe cases, resulting in the patient's death. Therefore, correct and timely diagnosis and treatment are essential for patients. In this study, a framework based on neural network algorithm and Raman spectroscopy technique was established to diagnose SLE patients. Firstly, we pre-processed the obtained Raman data by three methods: baseline correction, smoothing processing and normalization methods, before using it as input for the model, and then ANN, ResNet and SNN classification models were established. The respective classification accuracies for SLE patients were 89.61%, 85.71%, and 95.65% for the three models, with corresponding AUC values of 0.8772, 0.8100, and 0.9555. The results of the experimental indicate that SNN possesses a good classification effect, and the number of model parameters is only 525,826, which is 414,221 less than that of ResNet model. Since the network only uses 0 and 1 to transmit information, and only has basic operations such as summation, compared with the second-generation artificial neural network, which simplifies the product operation of floating point numbers into multiple addition operations, the network has low energy consumption and is suitable for embedding portable Raman spectrometer for clinical diagnosis. This research highlights the significant potential for quick and precise SLE patient discrimination offered by Raman spectroscopy in conjunction with spiking neural networks.
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Affiliation(s)
- Chenjie Chang
- College of Information Science and Engineering, Xinjiang University, Urumqi 830046, China
| | - Hao Liu
- College of Software, Xinjiang University, Urumqi 830046, China
| | - Chen Chen
- College of Information Science and Engineering, Xinjiang University, Urumqi 830046, China; Key Laboratory of Signal Detection and Processing, Xinjiang University, Urumqi 830046, China; Xinjiang Cloud Computing Application Laboratory, Karamay 834099, China; Xinjiang Aiqiside Testing Technology Co., Ltd, Urumqi 830000, China
| | - Lijun Wu
- Department of Rheumatology and Immunology, People's Hospital of Xinjiang Uygur Autonomous Region, Urumqi 830001, China; Xinjiang Clinical Research Center for Rheumatoid Arthritis, Urumqi 830001, China
| | - Xiaoyi Lv
- College of Software, Xinjiang University, Urumqi 830046, China; Key Laboratory of Signal Detection and Processing, Xinjiang University, Urumqi 830046, China
| | - Xiaodong Xie
- Xinjiang Uygur Autonomous Region People's Hospital, Urumqi 830001, China.
| | - Cheng Chen
- College of Software, Xinjiang University, Urumqi 830046, China.
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45
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Ni C, Liang Z, Xu X, Yu F, Zhang D, Chen C. Phosphine-Catalyzed [4 + 3] Annulation of β'-Acetoxy Allenoates with 1C,3N-Dinucleophiles: Access to Functionalized Azepine Derivatives. J Org Chem 2024; 89:4784-4791. [PMID: 38523355 DOI: 10.1021/acs.joc.4c00011] [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] [Subscribe] [Scholar Register] [Indexed: 03/26/2024]
Abstract
A novel method for the synthesis of functionalized azepine derivatives has been developed through a phosphine-catalyzed [4 + 3] annulation of β'-acetoxy allenoates with benzimidazole-derived 1C,3N-dinucleophiles. This approach demonstrates high efficiency and yields ranging from moderate to excellent. The reaction exhibits a wide substrate scope under the optimized conditions. Furthermore, an initial exploration of the asymmetric variant of this reaction has been conducted, utilizing phosphine (R)-SITCP as the catalyst.
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Affiliation(s)
- Chunjie Ni
- School of Pharmacy, Yancheng Teachers University, Yancheng 224007, China
| | - Zhanhang Liang
- School of Pharmacy, Yancheng Teachers University, Yancheng 224007, China
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Xiaojuan Xu
- School of Pharmacy, Yancheng Teachers University, Yancheng 224007, China
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Fan Yu
- School of Pharmacy, Yancheng Teachers University, Yancheng 224007, China
| | - Dong Zhang
- School of Pharmacy, Yancheng Teachers University, Yancheng 224007, China
| | - Chen Chen
- College of Chemistry, Tianjin Normal University, Tianjin 300387, China
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46
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Zhang M, Zhang X, Yin X, Li G, Yang T, Xie D, Chen C. Peritoneal dialysis-associated peritonitis caused by Neisseria.sicca: A case report and literature review. Indian J Med Microbiol 2024; 48:100566. [PMID: 38522747 DOI: 10.1016/j.ijmmb.2024.100566] [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] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Revised: 03/13/2024] [Accepted: 03/14/2024] [Indexed: 03/26/2024]
Abstract
Neisseria sicca, a Gram-negative diplococcus commonly found in the nasopharynx as part of normal bacterial flora, is typically non-pathogenic but has been associated with various diseases including endocarditis, conjunctivitis, pneumonia and meningitis (Jeurissen et al., 2006; Kozlova et al., 2020; Alcid, 1980; Carter et al., 2007). In this report, we present a case of peritonitis in a patient undergoing peritoneal dialysis caused by N. sicca and review the literature on Neisseria-associated peritonitis.
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Affiliation(s)
| | - XuZhan Zhang
- Laboratory Department of Heze Municipal Hospital, China.
| | - Xin Yin
- Laboratory Department of Heze Municipal Hospital, China.
| | - GuiXia Li
- Laboratory Department of Heze Municipal Hospital, China.
| | - Tian Yang
- Intensive Care Unit of Heze Traditional Chinese Medicine Hospital, China.
| | - Di Xie
- Laboratory Department of Heze Municipal Hospital, China.
| | - Chen Chen
- Laboratory Department of Heze Municipal Hospital, China.
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Xin X, Tian X, Chen C, Chen C, Li K, Ma X, Zhao L, Lv X. A method for accurate identification of Uyghur medicinal components based on Raman spectroscopy and multi-label deep learning. Spectrochim Acta A Mol Biomol Spectrosc 2024; 315:124251. [PMID: 38626675 DOI: 10.1016/j.saa.2024.124251] [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: 12/14/2023] [Revised: 03/10/2024] [Accepted: 04/03/2024] [Indexed: 04/18/2024]
Abstract
Uyghur medicine is one of the four major ethnic medicines in China and is a component of traditional Chinese medicine. The intrinsic quality of Uyghur medicinal materials will directly affect the clinical efficacy of Uyghur medicinal preparations. However, in recent years, problems such as adulteration of Uyghur medicinal materials and foreign bodies with the same name still exist, so it is necessary to strengthen the quality control of Uyghur medicines to guarantee Uyghur medicinal efficacy. Identifying the components of Uyghur medicines can clarify the types of medicinal materials used, is a crucial step to realizing the quality control of Uyghur medicines, and is also an important step in screening the effective components of Uyghur medicines. Currently, the method of identifying the components of Uyghur medicines relies on manual detection, which has the problems of high toxicity of the unfolding agent, poor stability, high cost, low efficiency, etc. Therefore, this paper proposes a method based on Raman spectroscopy and multi-label deep learning model to construct a model Mix2Com for accurate identification of Uyghur medicine components. The experiments use computer-simulated mixtures as the dataset, introduce the Long Short-Term Memory Model (LSTM) and Attention mechanism to encode the Raman spectral data, use multiple parallel networks for decoding, and ultimately realize the macro parallel prediction of medicine components. The results show that the model is trained to achieve 90.76% accuracy, 99.41% precision, 95.42% recall value and 97.37% F1 score. Compared to the traditional XGBoost model, the method proposed in the experiment improves the accuracy by 49% and the recall value by 18%; compared with the DeepRaman model, the accuracy is improved by 9% and the recall value is improved by 14%. The method proposed in this paper provides a new solution for the accurate identification of Uyghur medicinal components. It helps to improve the quality standard of Uyghur medicinal materials, advance the research on screening of effective chemical components of Uyghur medicines and their action mechanisms, and then promote the modernization and development of Uyghur medicine.
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Affiliation(s)
- Xiaotong Xin
- College of Software, Xinjiang University, Urumqi 830046, China.
| | - Xuecong Tian
- College of Information Science and Engineering, Xinjiang University, Urumqi 830046, China.
| | - Cheng Chen
- College of Software, Xinjiang University, Urumqi 830046, China.
| | - Chen Chen
- College of Information Science and Engineering, Xinjiang University, Urumqi 830046, China; Key Laboratory of Signal Detection and Processing, Xinjiang University, Urumqi 830046, China; Xinjiang Cloud Computing Application Laboratory, Karamay 834099, China.
| | - Keao Li
- Xinjiang Qikang Habowei Medicine Co., Ltd., Urumqi 830010, China.
| | - Xuan Ma
- Xinjiang Qimu Institute of Medicine, Urumqi 830010, China.
| | - Lu Zhao
- Xinjiang Qimu Institute of Medicine, Urumqi 830010, China.
| | - Xiaoyi Lv
- College of Software, Xinjiang University, Urumqi 830046, China; Key Laboratory of Signal Detection and Processing, Xinjiang University, Urumqi 830046, China.
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48
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DePiero VJ, Deng Z, Chen C, Savier EL, Chen H, Wei W, Cang J. Transformation of motion pattern selectivity from retina to superior colliculus. J Neurosci 2024:e1704232024. [PMID: 38569924 DOI: 10.1523/jneurosci.1704-23.2024] [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] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Revised: 03/07/2024] [Accepted: 03/26/2024] [Indexed: 04/05/2024] Open
Abstract
The superior colliculus (SC) is a prominent and conserved visual center in all vertebrates. In mice, the most superficial lamina of the SC is enriched with neurons that are selective for the moving direction of visual stimuli. Here we study how these direction selective neurons respond to complex motion patterns known as plaids, using two-photon calcium imaging in awake male and female mice. The plaid pattern consists of two superimposed sinusoidal gratings moving in different directions, giving an apparent pattern direction that lies between the directions of the two component gratings. Most direction selective neurons in the mouse SC respond robustly to the plaids and show a high selectivity for the moving direction of the plaid pattern but not of its components. Pattern motion selectivity is seen in both excitatory and inhibitory SC neurons and is especially prevalent in response to plaids with large cross angles between the two component gratings. However, retinal inputs to the SC are ambiguous in their selectivity to pattern versus component motion. Modeling suggests that pattern motion selectivity in the SC can arise from a nonlinear transformation of converging retinal inputs. In contrast, the prevalence of pattern motion selective neurons is not seen in the primary visual cortex (V1). These results demonstrate an interesting difference between the SC and V1 in motion processing and reveal the SC as an important site for encoding pattern motion.Significance Statement An important function of the visual system is to encode the direction of complex motion patterns in the environment. Studies using the plaid stimulus have revealed neurons in different cortical areas that are tuned to either pattern motion or component motion, but how neurons in the SC respond to plaids has not been studied. Here we show that direction selective neurons in the mouse SC respond to plaids with a clear pattern motion selectivity, at a level not seen in the retina or V1. Our results thus provide new information regarding the function and organization of the early visual system and highlight the importance of SC circuits in computing complex motion.
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Affiliation(s)
- Victor J DePiero
- Department of Biology, University of Virginia, Charlottesville, VA 22904, USA
- Department of Psychology, University of Virginia, Charlottesville, VA 22904, USA
| | - Zixuan Deng
- Committee on Neurobiology, University of Chicago, Chicago, IL 60637, USA
| | - Chen Chen
- Department of Psychology, University of Virginia, Charlottesville, VA 22904, USA
| | - Elise L Savier
- Department of Biology, University of Virginia, Charlottesville, VA 22904, USA
- Department of Physiology, University of Michigan, Ann Arbor. MI 48109, USA
| | - Hui Chen
- Department of Biology, University of Virginia, Charlottesville, VA 22904, USA
- Department of Psychology, University of Virginia, Charlottesville, VA 22904, USA
| | - Wei Wei
- Department of Neurobiology, Neuroscience Institute, University of Chicago, Chicago, IL 60637, USA
| | - Jianhua Cang
- Department of Biology, University of Virginia, Charlottesville, VA 22904, USA
- Department of Psychology, University of Virginia, Charlottesville, VA 22904, USA
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Chen R, Wang J, Xu J, Nie S, Chen C, Li Y, Li Y, He J, Li W, Wen M, Qiao J. Heterologous Biosynthesis of Kauralexin A1 in Saccharomyces cerevisiae through Metabolic and Enzyme Engineering. J Agric Food Chem 2024; 72:7308-7317. [PMID: 38529564 DOI: 10.1021/acs.jafc.4c00856] [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] [Indexed: 03/27/2024]
Abstract
Kauralexin A1 (KA1) is a key intermediate of the kauralexin A series metabolites of maize phytoalexins. However, their application is severely limited by their low abundance in maize. In this study, an efficient biosynthetic pathway was constructed to produce KA1 in Saccharomyces cerevisiae. Also, metabolic and enzyme engineering strategies were applied to construct the high-titer strains, such as chassis modification, screening synthases, the colocalization of enzymes, and multiple genomic integrations. First, the KA1 precursor ent-kaurene was synthesized using the efficient diterpene synthase GfCPS/KS from Fusarium fujikuroi, and optimized to reach 244.36 mg/L in shake flasks, which displayed a 200-fold increase compared to the initial strain. Then, the KA1 was produced under the catalysis of ZmCYP71Z18 from Zea mays and SmCPR1 from Salvia miltiorrhiza, and the titer was further improved by integrating the fusion protein into the genome. Finally, an ent-kaurene titer of 763.23 mg/L and a KA1 titer of 42.22 mg/L were achieved through a single-stage fed-batch fermentation in a 5 L bioreactor. This is the first report of the heterologous biosynthesis of maize diterpene phytoalexins in S. cerevisiae, which lays a foundation for further pathway reconstruction and biosynthesis of the kauralexin A series maize phytoalexins.
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Affiliation(s)
- Ruiqi Chen
- Department of Pharmaceutical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
- Key Laboratory of Systems Bioengineering (Ministry of Education), Tianjin University, Tianjin 300072, China
- Zhejiang Institute of Tianjin University (Shaoxing), Shaoxing 312300, China
| | - Jingru Wang
- Zhejiang Institute of Tianjin University (Shaoxing), Shaoxing 312300, China
- School of life science, Liaoning University, Shenyang 110036, China
| | - Junsong Xu
- Department of Pharmaceutical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
- Key Laboratory of Systems Bioengineering (Ministry of Education), Tianjin University, Tianjin 300072, China
- Zhejiang Institute of Tianjin University (Shaoxing), Shaoxing 312300, China
| | - Shengxin Nie
- Department of Pharmaceutical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
- Key Laboratory of Systems Bioengineering (Ministry of Education), Tianjin University, Tianjin 300072, China
- Zhejiang Institute of Tianjin University (Shaoxing), Shaoxing 312300, China
| | - Chen Chen
- Department of Pharmaceutical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
- Key Laboratory of Systems Bioengineering (Ministry of Education), Tianjin University, Tianjin 300072, China
- Zhejiang Institute of Tianjin University (Shaoxing), Shaoxing 312300, China
| | - Yukun Li
- Zhejiang Institute of Tianjin University (Shaoxing), Shaoxing 312300, China
| | - Yanni Li
- Department of Pharmaceutical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
- Key Laboratory of Systems Bioengineering (Ministry of Education), Tianjin University, Tianjin 300072, China
| | - Jianwei He
- School of life science, Liaoning University, Shenyang 110036, China
| | - Weiguo Li
- Zhejiang Institute of Tianjin University (Shaoxing), Shaoxing 312300, China
| | - Mingzhang Wen
- Department of Pharmaceutical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
- Key Laboratory of Systems Bioengineering (Ministry of Education), Tianjin University, Tianjin 300072, China
| | - Jianjun Qiao
- Department of Pharmaceutical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
- Key Laboratory of Systems Bioengineering (Ministry of Education), Tianjin University, Tianjin 300072, China
- Zhejiang Institute of Tianjin University (Shaoxing), Shaoxing 312300, China
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Zhang X, Liang M, Song D, Huang R, Chen C, Liu X, Chen H, Wang Q, Sun X, Song J, Zhang J, Kang H, Zeng X. Both protein and non-protein components in extracellular vesicles of human seminal plasma improve human sperm function via CatSper-mediated calcium signaling. Hum Reprod 2024; 39:658-673. [PMID: 38335261 DOI: 10.1093/humrep/deae018] [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: 10/08/2023] [Revised: 01/10/2024] [Indexed: 02/12/2024] Open
Abstract
STUDY QUESTION What is the significance and mechanism of human seminal plasma extracellular vesicles (EVs) in regulating human sperm functions? SUMMARY ANSWER EV increases the intracellular Ca2+ concentrations [Ca2+]i via extracellular Ca2+ influx by activating CatSper channels, and subsequently modulate human sperm motility, especially hyperactivated motility, which is attributed to both protein and non-protein components in EV. WHAT IS KNOWN ALREADY EVs are functional regulators of human sperm function, and EV cargoes from normal and asthenozoospermic seminal plasma are different. Pre-fusion of EV with sperm in the acidic and non-physiological sucrose buffer solution could elevate [Ca2+]i in human sperm. CatSper, a principle Ca2+ channel in human sperm, is responsible for the [Ca2+]i regulation when sperm respond to diverse extracellular stimuli. However, the role of CatSper in EV-evoked calcium signaling and its potential physiological significance remain unclear. STUDY DESIGN, SIZE, DURATION EV isolated from the seminal plasma of normal and asthenozoospermic semen were utilized to investigate the mechanism by which EV regulates calcium signal in human sperm, including the involvement of CatSper and the responsible cargoes in EV. In addition, the clinical application potential of EV and EV protein-derived peptides were also evaluated. This is a laboratory study that went on for more than 5 years and involved more than 200 separate experiments. PARTICIPANTS/MATERIALS, SETTING, METHODS Semen donors were recruited in accordance with the Institutional Ethics Committee on human subjects of the Affiliated Hospital of Nantong University and Jiangxi Maternal and Child Health Hospital. The Flow NanoAnalyzer, western blotting, and transmission electron microscope were used to systematically characterize seminal plasma EV. Sperm [Ca2+]i responses were examined by fluorimetric measurement. The whole-cell patch-clamp technique was performed to record CatSper currents. Sperm motility parameters were assessed by computer-assisted sperm analysis. Sperm hyperactivation was also evaluated by examining their penetration ability in viscous methylcellulose media. Protein and non-protein components in EV were analyzed by liquid chromatography-mass spectrum. The levels of prostaglandins, reactive oxygen species, malonaldehyde, and DNA integrity were detected by commercial kits. MAIN RESULTS AND THE ROLE OF CHANCE EV increased [Ca2+]i via an extracellular Ca2+ influx, which could be suppressed by a CatSper inhibitor. Also, EV potentiated CatSper currents in human sperm. Furthermore, the EV-in [Ca2+]i increase and CatSper currents were absent in a CatSper-deficient sperm, confirming the crucial role of CatSper in EV induced Ca2+ signaling in human sperm. Both proteins and non-protein components of EV contributed to the increase of [Ca2+]i, which were important for the effects of EV on human sperm. Consequently, EV and its cargos promoted sperm hyperactivated motility. In addition, seminal plasma EV protein-derived peptides, such as NAT1-derived peptide (N-P) and THBS-1-derived peptide (T-P), could activate the sperm calcium signal and enhance sperm function. Interestingly, EV derived from asthenozoospermic semen caused a lower increase of [Ca2+]i than that isolated from normal seminal plasma (N-EV), and N-EV significantly improved sperm motility and function in both asthenozoospermic samples and frozen-thawed sperm. LARGE SCALE DATA N/A. LIMITATIONS, REASONS FOR CAUTION This was an in vitro study and caution must be taken when extrapolating the physiological relevance to in vivo regulation of sperm. WIDER IMPLICATIONS OF THE FINDINGS Our findings demonstrate that the CatSper-mediated-Ca2+ signaling is involved in EV-modulated sperm function under near physiological conditions, and EV and their derivates are a novel CatSper and sperm function regulators with potential for clinical application. They may be developed to improve sperm motility resulting from low [Ca2+]i response and/or freezing and thawing. STUDY FUNDING/COMPETING INTEREST(S) This research was supported by the National Natural Science Foundation of China (32271167), the Social Development Project of Jiangsu Province (BE2022765), the Nantong Social and People's Livelihood Science and Technology Plan (MS22022087), the Basic Science Research Program of Nantong (JC22022086), and the Jiangsu Innovation and Entrepreneurship Talent Plan (JSSCRC2021543). The authors declare no conflict of interest.
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Affiliation(s)
- Xiaoning Zhang
- Institute of Reproductive Medicine, Medical School, Nantong University, Nantong, China
| | - Min Liang
- Institute of Reproductive Medicine, Medical School, Nantong University, Nantong, China
| | - Dandan Song
- Institute of Life Science and School of Life Science, Nanchang University, Nanchang, China
| | - Rongzu Huang
- Institute of Reproductive Medicine, Medical School, Nantong University, Nantong, China
| | - Chen Chen
- Institute of Reproductive Medicine, Medical School, Nantong University, Nantong, China
| | - Xiaojun Liu
- Institute of Reproductive Medicine, Medical School, Nantong University, Nantong, China
| | - Houyang Chen
- Reproductive Medical Center, Jiangxi Maternal and Child Health Hospital, Nanchang, China
| | - Qingxin Wang
- Department of Obstetrics and Gynecology, Center of Reproductive Medicine, Affiliated Hospital of Nantong University, Nantong, China
| | - Xiaoli Sun
- Department of Obstetrics and Gynecology, Center of Reproductive Medicine, Affiliated Hospital of Nantong University, Nantong, China
| | - Jian Song
- Department of Obstetrics and Gynecology, Center of Reproductive Medicine, Affiliated Hospital of Nantong University, Nantong, China
| | - Jiali Zhang
- Institute of Reproductive Medicine, Medical School, Nantong University, Nantong, China
| | - Hang Kang
- Institute of Reproductive Medicine, Medical School, Nantong University, Nantong, China
| | - Xuhui Zeng
- Institute of Reproductive Medicine, Medical School, Nantong University, Nantong, China
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