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Zuo M, Yang Y, Jiang S, Zhu C, Han Y, Hu J, Ren K, Cui L, Zhang CY. Ultrathin-FeOOH-coated MnO 2 nanozyme with enhanced catalase-like and oxidase-like activities for photoelectrochemical and colorimetric detection of organophosphorus pesticides. Food Chem 2024; 445:138716. [PMID: 38359573 DOI: 10.1016/j.foodchem.2024.138716] [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: 11/23/2023] [Revised: 02/04/2024] [Accepted: 02/06/2024] [Indexed: 02/17/2024]
Abstract
Herein, we develop a dual-mode biosensor for photoelectrochemical and colorimetric detection of organophosphate pesticides (OPPs) based on ultrathin-FeOOH-coated MnO2 (MO@FHO) nanozyme. In this biosensor, OPPs can inhibit the alkaline phosphatase (ALP) activity and hinder the dephosphorylation of l-ascorbic acid-2-phosphate, preventing the decomposition of MO@FHO nanozyme and inducing both a photoelectrochemical (PEC) signal and the colorimetric change. The MO@FHO nanozyme not only possesses an enhanced catalase-like activity to degrade H2O2 for the generation of an improved cathodic photocurrent, but also exhibits an excellent oxidase-like activity to oxidize 3,3,5,5-tetramethylbenzidine with high catalytic efficiency. This biosensor displays a detection limit of 50 pmol/L for the PEC mode and a detection limit of 0.8 nmol/L for the colorimetric mode. Moreover, this biosensor exhibits excellent performance in complex biological matrices, and the smartphone-based visual sensing platform facilitates rapid and sensitive detection of OPPs, holding promising applications in food safety monitoring, and on-site detection.
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Affiliation(s)
- Maoding Zuo
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan 250014, China
| | - Yuncong Yang
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan 250014, China
| | - Su Jiang
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan 250014, China
| | - Chenyu Zhu
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan 250014, China
| | - Yun Han
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China
| | - Juan Hu
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China
| | - Kewei Ren
- School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China.
| | - Lin Cui
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan 250014, China.
| | - Chun-Yang Zhang
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China.
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Tan CY, Zeng K, Cui L, Lin RTP, Chen M. Diagnostic performance of rapid antigen tests (RAT) for COVID-19 and factors associated with RAT-negative results among RT-PCR-positive individuals during Omicron BA.2, BA.5 and XBB.1 predominance. BMC Infect Dis 2024; 24:504. [PMID: 38769524 DOI: 10.1186/s12879-024-09408-8] [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] [Subscribe] [Scholar Register] [Received: 02/23/2024] [Accepted: 05/15/2024] [Indexed: 05/22/2024] Open
Abstract
BACKGROUND While numerous studies have evaluated the real-world performance of rapid antigen tests (RATs), data on the effect of Omicron sublineages such as XBB and reinfections on RAT performance is limited. We assessed the performance of RATs and factors associated with RAT-negative results among individuals who tested SARS-CoV-2-positive by reverse transcription-polymerase chain reaction (RT-PCR). METHODS We conducted a retrospective study among Singapore residents who underwent testing for SARS-CoV-2 with RAT (Acon Flowflex or SD Biosensor) and RT-PCR in the same clinical encounter between 9 May 2022 and 21 November 2022. RT-PCR served as a reference standard for RAT performance. Logistic regression was used to estimate the odds ratios (OR) of factors associated with negative RAT results among RT-PCR-positive cases. RESULTS Of 8,620 clinical encounters analysed, 3,519 (40.8%) were SARS-CoV-2-positive on RT-PCR. Overall sensitivity and specificity of RAT was 84.6% (95% CI 83.3-85.7%) and 99.4% (95% CI 99.1-99.6%) respectively. Acon Flowflex consistently achieved higher sensitivity and specificity than SD Biosensor test kit. Among RT-PCR-positive cases, individuals who had a previous documented SARS-CoV-2 infection, coinfection with another respiratory pathogen or tested ≥ 6 days from symptom onset had higher odds of testing RAT-negative, but the associations were attenuated after adjustment for cycle threshold values (proxy for viral load). There was no significant difference in RAT performance between Omicron sublineages BA.2, BA.5 and XBB.1. CONCLUSION Diagnostic performance of RAT was not affected by changes in predominant circulating Omicron sublineages. However, reinfection cases may be under ascertained by RAT. In individuals with a previous SARS-CoV-2 infection episode or symptom onset ≥ 6 days prior to testing, a confirmatory RT-PCR may be considered if there is high clinical suspicion.
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Affiliation(s)
- Celine Y Tan
- National Preventive Medicine Residency Programme, National University Health System, Singapore, Singapore.
- National Centre for Infectious Diseases, Singapore, Singapore.
| | - Kangwei Zeng
- National Centre for Infectious Diseases, Singapore, Singapore
- Ministry of Health, Singapore, Singapore
| | - Lin Cui
- National Centre for Infectious Diseases, Singapore, Singapore
| | - Raymond T P Lin
- National Centre for Infectious Diseases, Singapore, Singapore
| | - Mark Chen
- National Centre for Infectious Diseases, Singapore, Singapore
- Ministry of Health, Singapore, Singapore
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3
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Du Y, Jiang S, Han Y, Liu Q, Cui L, Zhang CY. Synthesis of silica-encapsulated tetraphenylethylene with aggregation-induced electrochemiluminescence resonance energy transfer for sensitively sensing microcystin-LR. Talanta 2024; 272:125752. [PMID: 38354543 DOI: 10.1016/j.talanta.2024.125752] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Revised: 01/31/2024] [Accepted: 02/05/2024] [Indexed: 02/16/2024]
Abstract
The reported organic electrochemiluminescence (ECL) luminophors for the detection of various markers often suffer from intermolecular π-π stacking-induced luminophore quenching. Herein, we demonstrate one-pot synthesis of a new aggregation-induced electrochemiluminescence (AIECL) emitter (i.e., TPE@SiO2/rGO composite) for sensitive measurement of microcystin-leucine arginine (MC-LR). The TPE@SiO2/rGO composite is constructed by embedding the silica-encapsuled 1,1,2,2-tetra(4-carboxylphenyl)ethylene (TPE) in the reduced graphene oxide. In comparison with the monomer TPE, this composite exhibit high luminescence efficiency and strong ECL emission, because the AIECL phenomenon triggered by the spatial confinement effect in the SiO2 cage induces the restriction of the internal motion and vibration of molecules. Notably, this composite has distinct advantages of easy preparation, simple functionalization, and stable luminescence. Especially, the TPE@SiO2/rGO-based ECL-RET system exhibits a high quenching efficiency (ΦET) of 69.7%. When target MC-LR is present, it triggers DNA strand displacement reaction (SDR), inducing the quenching of the ECL signal of TPE@SiO2/rGO composite due to ECL resonance energy transfer between TPE@SiO2/rGO composite and methylene blue (MB). The proposed biosensor enables highly sensitive, low-cost, and robust measurement of MC-LR with a large dynamic range of 7 orders of magnitude and a detection limit of 3.78 fg/mL, and it displays excellent detection performance in complex biological matrices, holding potential applications in food safety and water monitoring.
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Affiliation(s)
- Yu Du
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan, 250014, China
| | - Su Jiang
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan, 250014, China
| | - Yun Han
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 211189, China
| | - Qian Liu
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 211189, China
| | - Lin Cui
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan, 250014, China.
| | - Chun-Yang Zhang
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 211189, China.
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Qi W, Cui L, Jiajue R, Pang Q, Chi Y, Liu W, Jiang Y, Wang O, Li M, Xing X, Tong A, Xia W. Deteriorated bone microarchitecture caused by sympathetic overstimulation in pheochromocytoma and paraganglioma. J Endocrinol Invest 2024; 47:843-856. [PMID: 37872466 DOI: 10.1007/s40618-023-02198-x] [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: 07/20/2023] [Accepted: 09/12/2023] [Indexed: 10/25/2023]
Abstract
PURPOSE Despite the potentially destructive effect of sympathetic activity on bone metabolism, its impact on bone microarchitecture, a key determinant of bone quality, has not been thoroughly investigated. This study aims to evaluate the impact of sympathetic activity on bone microarchitecture and bone strength in patients with pheochromocytoma and paraganglioma (PPGL). METHODS A cross-sectional study was conducted in 38 PPGL patients (15 males and 23 females). Bone turnover markers serum procollagen type 1 N-terminal propeptide (P1NP) and β-carboxy-terminal crosslinked telopeptide of type 1 collagen (β-CTX) were measured. 24-h urinary adrenaline (24hUE) and 24-h urinary norepinephrine levels (24hUNE) were measured to indicate sympathetic activity. High-resolution peripheral quantitative computed tomography (HR-pQCT) was conducted to evaluate bone microarchitecture in PPGL patients and 76 age-, sex-matched healthy controls (30 males and 46 females). Areal bone mineral density (aBMD) was measured by dual-energy X-ray absorptiometry (DXA) simultaneously. RESULTS PPGL patients had a higher level of β-CTX. HR-pQCT assessment revealed that PPGL patients had notably thinner and more sparse trabecular bone (decreased trabecular number and thickness with increased trabecular separation), significantly decreased volume BMD (vBMD), and bone strength at both the radius and tibia compared with healthy controls. The deterioration of Tt.vBMD, Tb.Sp, and Tb.1/N.SD was more pronounced in postmenopausal patients compared with the premenopausal subjects. Moreover, subjects in the highest 24hUNE quartile (Q4) showed markedly lower Tb.N and higher Tb.Sp and Tb.1/N.SD at the tibia than those in the lowest quartile (Q1). Age-related bone loss was also exacerbated in PPGL patients to a certain extent. CONCLUSIONS PPGL patients had significantly deteriorated bone microarchitecture and strength, especially in the trabecular bone, with an increased bone resorption rate. Our findings provide clinical evidence that sympathetic overstimulation may serve as a secondary cause of osteoporosis, especially in subjects with increased sympathetic activity.
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Affiliation(s)
- W Qi
- Department of Endocrinology, Key Laboratory of Endocrinology, State Key Laboratory of Complex Severe and Rare Diseases, Dongcheng District, National Commission of Health, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Shuaifuyuan No.1, Wangfujing Street, Beijing, 100730, China
| | - L Cui
- Department of Endocrinology, Key Laboratory of Endocrinology, State Key Laboratory of Complex Severe and Rare Diseases, Dongcheng District, National Commission of Health, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Shuaifuyuan No.1, Wangfujing Street, Beijing, 100730, China
| | - R Jiajue
- Department of Endocrinology, Key Laboratory of Endocrinology, State Key Laboratory of Complex Severe and Rare Diseases, Dongcheng District, National Commission of Health, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Shuaifuyuan No.1, Wangfujing Street, Beijing, 100730, China
| | - Q Pang
- Department of Endocrinology, Key Laboratory of Endocrinology, State Key Laboratory of Complex Severe and Rare Diseases, Dongcheng District, National Commission of Health, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Shuaifuyuan No.1, Wangfujing Street, Beijing, 100730, China
| | - Y Chi
- Department of Endocrinology, Key Laboratory of Endocrinology, State Key Laboratory of Complex Severe and Rare Diseases, Dongcheng District, National Commission of Health, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Shuaifuyuan No.1, Wangfujing Street, Beijing, 100730, China
| | - W Liu
- Department of Endocrinology, Key Laboratory of Endocrinology, State Key Laboratory of Complex Severe and Rare Diseases, Dongcheng District, National Commission of Health, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Shuaifuyuan No.1, Wangfujing Street, Beijing, 100730, China
| | - Y Jiang
- Department of Endocrinology, Key Laboratory of Endocrinology, State Key Laboratory of Complex Severe and Rare Diseases, Dongcheng District, National Commission of Health, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Shuaifuyuan No.1, Wangfujing Street, Beijing, 100730, China
| | - O Wang
- Department of Endocrinology, Key Laboratory of Endocrinology, State Key Laboratory of Complex Severe and Rare Diseases, Dongcheng District, National Commission of Health, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Shuaifuyuan No.1, Wangfujing Street, Beijing, 100730, China
| | - M Li
- Department of Endocrinology, Key Laboratory of Endocrinology, State Key Laboratory of Complex Severe and Rare Diseases, Dongcheng District, National Commission of Health, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Shuaifuyuan No.1, Wangfujing Street, Beijing, 100730, China
| | - X Xing
- Department of Endocrinology, Key Laboratory of Endocrinology, State Key Laboratory of Complex Severe and Rare Diseases, Dongcheng District, National Commission of Health, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Shuaifuyuan No.1, Wangfujing Street, Beijing, 100730, China
| | - A Tong
- Department of Endocrinology, Key Laboratory of Endocrinology, State Key Laboratory of Complex Severe and Rare Diseases, Dongcheng District, National Commission of Health, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Shuaifuyuan No.1, Wangfujing Street, Beijing, 100730, China.
| | - W Xia
- Department of Endocrinology, Key Laboratory of Endocrinology, State Key Laboratory of Complex Severe and Rare Diseases, Dongcheng District, National Commission of Health, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Shuaifuyuan No.1, Wangfujing Street, Beijing, 100730, China.
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Yin J, Wang S, Cui L, Li D, Yang S, Wu J, Meng G, Tian X, Liu Z, Tai Y, Liu J. Conductive Hydrogel Dressing with High Mechanical Strength for Joint Wound Healing. Macromol Biosci 2024:e2300528. [PMID: 38444237 DOI: 10.1002/mabi.202300528] [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: 11/18/2023] [Revised: 02/11/2024] [Indexed: 03/07/2024]
Abstract
Hydrogel wound dressing can accelerate angiogenesis to achieve rapid wound healing, but traditional hydrogel dressings are difficult to meet the repair of joint sites due to their low mechanical strength. Therefore, we constructed the gel system by designing the chemical-physical interpenetrating network structure to achieve high strength and high toughness of the hydrogel. The high-strength double-network hydrogels were synthesized by simple free radical polymerization and low-temperature physicochemical cross-linking in our experiments. The suspension was obtained by green reduction of graphene oxide with carboxymethyl chitosan, followed by the introduction of acrylamide (AM) to form a covalent cross-linked network, which was immersed in ferric chloride solution to form metal ligand bonds, and finally the chemical-physical dual cross-linked network hydrogel wound dressing was prepared. Here, reduced graphene oxide can enhance electrical conductivity and excellent near-infrared photothermal effect to the hydrogel. The cell viability of this novel wound dressing was above 90.0%, its hemolysis rate was below 2.0%, and the electrical conductivity could reach (6.89 ± 0.07 (mS/cm)). In addition, the stress-strain curve demonstrated that the double cross-linked network hydrogel could reach a stress of more than 0.8 MPa at 82.0% strain, and the cyclic compression experiment shows that it can still recover its original shape after five times of repeated compression. This work can provide a reference for the exploitation of high mechanical strength hydrogel wound dressings with good electrical conductivity and near-infrared photothermal effect. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Junxia Yin
- School of Chemistry and Chemical Engineering, Shihezi University/State Key Laboratory Incubation Base for Green Processing of Chemical Engineering, Xinjiang, 832003, P. R. China
| | - Shan Wang
- School of Chemistry and Chemical Engineering, Shihezi University/State Key Laboratory Incubation Base for Green Processing of Chemical Engineering, Xinjiang, 832003, P. R. China
| | - Lin Cui
- School of Medicine, Shihezi University, Xinjiang, 832000, China
| | - Dongmei Li
- School of Medicine, Shihezi University, Xinjiang, 832000, China
| | - Shengchao Yang
- School of Chemistry and Chemical Engineering, Shihezi University/State Key Laboratory Incubation Base for Green Processing of Chemical Engineering, Xinjiang, 832003, P. R. China
| | - Jianning Wu
- School of Chemistry and Chemical Engineering, Shihezi University/State Key Laboratory Incubation Base for Green Processing of Chemical Engineering, Xinjiang, 832003, P. R. China
| | - Guihua Meng
- School of Chemistry and Chemical Engineering, Shihezi University/State Key Laboratory Incubation Base for Green Processing of Chemical Engineering, Xinjiang, 832003, P. R. China
| | - Xing Tian
- School of Pharmacy, Shihezi University, Xinjiang, 832000, China
| | - Zhiyong Liu
- School of Chemistry and Chemical Engineering, Shihezi University/State Key Laboratory Incubation Base for Green Processing of Chemical Engineering, Xinjiang, 832003, P. R. China
| | - Yanlong Tai
- Key Laboratory of Human-Machine Intelligence-Synergy Systems of Chinese Academy of Sciences (CAS), Shenzhen Institutes of Advanced Technology, CAS, Shenzhen, 518055, China
| | - Jichang Liu
- School of Chemistry and Chemical Engineering, Shihezi University/State Key Laboratory Incubation Base for Green Processing of Chemical Engineering, Xinjiang, 832003, P. R. China
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Li F, Cao D, Gu W, Li D, Liu Z, Cui L. Folate-Targeted Nanocarriers Co-Deliver Ganciclovir and miR-34a-5p for Combined Anti-KSHV Therapy. Int J Mol Sci 2024; 25:2932. [PMID: 38474177 DOI: 10.3390/ijms25052932] [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: 01/04/2024] [Revised: 02/13/2024] [Accepted: 02/27/2024] [Indexed: 03/14/2024] Open
Abstract
Kaposi's sarcoma-associated herpesvirus (KSHV) can cause a variety of malignancies. Ganciclovir (GCV) is one of the most efficient drugs against KSHV, but its non-specificity can cause other side effects in patients. Nucleic acid miR-34a-5p can inhibit the transcription of KSHV RNA and has great potential in anti-KSHV therapy, but there are still problems such as easy degradation and low delivery efficiency. Here, we constructed a co-loaded dual-drug nanocomplex (GCV@ZIF-8/PEI-FA+miR-34a-5p) that contains GCV internally and adsorbs miR-34a-5p externally. The folic acid (FA)-coupled polyethyleneimine (PEI) coating layer (PEI-FA) was shown to increase the cellular uptake of the nanocomplex, which is conducive to the enrichment of drugs at the KSHV infection site. GCV and miR-34a-5p are released at the site of the KSHV infection through the acid hydrolysis characteristics of ZIF-8 and the "proton sponge effect" of PEI. The co-loaded dual-drug nanocomplex not only inhibits the proliferation and migration of KSHV-positive cells but also decreases the mRNA expression level of KSHV lytic and latent genes. In conclusion, this co-loaded dual-drug nanocomplex may provide an attractive strategy for antiviral drug delivery and anti-KSHV therapy.
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Affiliation(s)
- Fangling Li
- Key Laboratory of Xinjiang Endemic and Ethnic Diseases, NHC Key Laboratory of Prevention and Treatment of Central Asia High Incidence Diseases, School of Medicine, Shihezi University, Shihezi 832002, China
- State Key Laboratory Incubation Base for Green Processing of Chemical Engineering, School of Chemistry and Chemical Engineering, Shihezi University, Shihezi 832003, China
| | - Dongdong Cao
- Key Laboratory of Xinjiang Endemic and Ethnic Diseases, NHC Key Laboratory of Prevention and Treatment of Central Asia High Incidence Diseases, School of Medicine, Shihezi University, Shihezi 832002, China
| | - Wenyi Gu
- Australian Institute for Bioengineering and Nanotechnology (AIBN), University of Queensland (UQ), Corner College and Cooper Roads (Building 75), Brisbane, QLD 4072, Australia
| | - Dongmei Li
- Key Laboratory of Xinjiang Endemic and Ethnic Diseases, NHC Key Laboratory of Prevention and Treatment of Central Asia High Incidence Diseases, School of Medicine, Shihezi University, Shihezi 832002, China
| | - Zhiyong Liu
- State Key Laboratory Incubation Base for Green Processing of Chemical Engineering, School of Chemistry and Chemical Engineering, Shihezi University, Shihezi 832003, China
| | - Lin Cui
- Key Laboratory of Xinjiang Endemic and Ethnic Diseases, NHC Key Laboratory of Prevention and Treatment of Central Asia High Incidence Diseases, School of Medicine, Shihezi University, Shihezi 832002, China
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Wang X, Cui L, Liu M, Qi Z, Luo H, Huang H, Tu T, Qin X, Wang Y, Zhang J, Wang Y, Yao B, Bai Y, Su X. Theoretical insights into the mechanism underlying aflatoxin B 1 transformation by the BsCotA-methyl syringate system. Ecotoxicol Environ Saf 2024; 272:116049. [PMID: 38301584 DOI: 10.1016/j.ecoenv.2024.116049] [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: 09/11/2023] [Revised: 01/17/2024] [Accepted: 01/27/2024] [Indexed: 02/03/2024]
Abstract
Global concern exists regarding the contamination of food and animal feed with aflatoxin B1 (AFB1), which poses a threat to the health of both humans and animals. Previously, we found that a laccase from Bacillus subtilis (BsCotA) effectively detoxified AFB1 in a reaction mediated by methyl syringate (MS), although the underlying mechanism has not been determined. Therefore, our primary objective of this study was to explore the detoxification mechanism employed by BsCotA. First, the enzyme and mediator dependence of AFB1 transformation were studied using the BsCotA-MS system, which revealed the importance of MS radical formation during the oxidation process. Aflatoxin Q1 (AFQ1) resulting from the direct oxidation of AFB1 by BsCotA, was identified using ultra-high-performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS). The results of UPLC-MS/MS and density functional theory calculations indicated that the products included AFQ1, AFB1-, and AFD1-MS-coupled products in the BsCotA-MS system. The toxicity evaluations revealed that the substances derived from the transformation of AFB1 through the BsCotA-MS mechanism exhibited markedly reduced toxicity compared to AFB1. Finally, we proposed a set of different AFB1-transformation pathways generated by the BsCotA-MS system based on the identified products. These findings greatly enhance the understanding of the AFB1-transformation mechanism of the laccase-mediator system.
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Affiliation(s)
- Xiaolu Wang
- State Key Laboratory of Animal Nutrition and Feeding, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Lin Cui
- State Key Laboratory of Animal Nutrition and Feeding, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Mengting Liu
- Key Laboratory of Neuropharmacology and Translational Medicine of Zhejiang Province, School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, Zhejiang, China
| | - Zheng Qi
- Engineering Research Center for Medicine, College of Pharmacy, Harbin University of Commerce, Harbin 150076, China
| | - Huiying Luo
- State Key Laboratory of Animal Nutrition and Feeding, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Huoqing Huang
- State Key Laboratory of Animal Nutrition and Feeding, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Tao Tu
- State Key Laboratory of Animal Nutrition and Feeding, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Xing Qin
- State Key Laboratory of Animal Nutrition and Feeding, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Yuan Wang
- State Key Laboratory of Animal Nutrition and Feeding, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Jie Zhang
- State Key Laboratory of Animal Nutrition and Feeding, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Yaru Wang
- State Key Laboratory of Animal Nutrition and Feeding, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Bin Yao
- State Key Laboratory of Animal Nutrition and Feeding, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Yingguo Bai
- State Key Laboratory of Animal Nutrition and Feeding, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China.
| | - Xiaoyun Su
- State Key Laboratory of Animal Nutrition and Feeding, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China.
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Friggeri G, Moretti I, Amato F, Marrani AG, Sciandra F, Colombarolli SG, Vitali A, Viscuso S, Augello A, Cui L, Perini G, De Spirito M, Papi M, Palmieri V. Multifunctional scaffolds for biomedical applications: Crafting versatile solutions with polycaprolactone enriched by graphene oxide. APL Bioeng 2024; 8:016115. [PMID: 38435469 PMCID: PMC10908559 DOI: 10.1063/5.0184933] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Accepted: 01/30/2024] [Indexed: 03/05/2024] Open
Abstract
The pressing need for multifunctional materials in medical settings encompasses a wide array of scenarios, necessitating specific tissue functionalities. A critical challenge is the occurrence of biofouling, particularly by contamination in surgical environments, a common cause of scaffolds impairment. Beyond the imperative to avoid infections, it is also essential to integrate scaffolds with living cells to allow for tissue regeneration, mediated by cell attachment. Here, we focus on the development of a versatile material for medical applications, driven by the diverse time-definite events after scaffold implantation. We investigate the potential of incorporating graphene oxide (GO) into polycaprolactone (PCL) and create a composite for 3D printing a scaffold with time-controlled antibacterial and anti-adhesive growth properties. Indeed, the as-produced PCL-GO scaffold displays a local hydrophobic effect, which is translated into a limitation of biological entities-attachment, including a diminished adhesion of bacteriophages and a reduction of E. coli and S. aureus adhesion of ∼81% and ∼69%, respectively. Moreover, the ability to 3D print PCL-GO scaffolds with different heights enables control over cell distribution and attachment, a feature that can be also exploited for cellular confinement, i.e., for microfluidics or wound healing applications. With time, the surface wettability increases, and the scaffold can be populated by cells. Finally, the presence of GO allows for the use of infrared light for the sterilization of scaffolds and the disruption of any bacteria cell that might adhere to the more hydrophilic surface. Overall, our results showcase the potential of PCL-GO as a versatile material for medical applications.
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Affiliation(s)
| | - I. Moretti
- Dipartimento di Neuroscienze, Università Cattolica del Sacro Cuore, Largo Francesco Vito 1, 00168 Roma, Italy
| | - F. Amato
- Dipartimento di Chimica, Università di Roma “La Sapienza,” p.le A. Moro 5, I-00185 Roma, Italy
| | - A. G. Marrani
- Dipartimento di Chimica, Università di Roma “La Sapienza,” p.le A. Moro 5, I-00185 Roma, Italy
| | - F. Sciandra
- Istituto di Scienze e Tecnologie Chimiche “Giulio Natta”-SCITEC (CNR), C/O Istituto di Biochimica e Biochimica Clinica, Università Cattolica del Sacro Cuore, L.go F. Vito 1, 00168-Roma, Italy
| | - S. G. Colombarolli
- Istituto di Scienze e Tecnologie Chimiche “Giulio Natta”-SCITEC (CNR), C/O Istituto di Biochimica e Biochimica Clinica, Università Cattolica del Sacro Cuore, L.go F. Vito 1, 00168-Roma, Italy
| | - A. Vitali
- Istituto di Scienze e Tecnologie Chimiche “Giulio Natta”-SCITEC (CNR), C/O Istituto di Biochimica e Biochimica Clinica, Università Cattolica del Sacro Cuore, L.go F. Vito 1, 00168-Roma, Italy
| | - S. Viscuso
- Istituto di Scienze e Tecnologie Chimiche “Giulio Natta”-SCITEC (CNR), C/O Istituto di Biochimica e Biochimica Clinica, Università Cattolica del Sacro Cuore, L.go F. Vito 1, 00168-Roma, Italy
| | | | - L. Cui
- Dipartimento di Neuroscienze, Università Cattolica del Sacro Cuore, Largo Francesco Vito 1, 00168 Roma, Italy
| | | | - M. De Spirito
- Authors to whom correspondence should be addressed: and
| | - M. Papi
- Authors to whom correspondence should be addressed: and
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9
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Asanoma K, Yagi H, Onoyama I, Cui L, Hori E, Kawakami M, Maenohara S, Hachisuga K, Tomonobe H, Kodama K, Yasunaga M, Ohgami T, Okugawa K, Yahata H, Kitao H, Kato K. The BHLHE40‒PPM1F‒AMPK pathway regulates energy metabolism and is associated with the aggressiveness of endometrial cancer. J Biol Chem 2024; 300:105695. [PMID: 38301894 PMCID: PMC10904277 DOI: 10.1016/j.jbc.2024.105695] [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: 09/04/2023] [Revised: 01/03/2024] [Accepted: 01/17/2024] [Indexed: 02/03/2024] Open
Abstract
BHLHE40 is a basic helix-loop-helix transcription factor that is involved in multiple cell activities including differentiation, cell cycle, and epithelial-to-mesenchymal transition. While there is growing evidence to support the functions of BHLHE40 in energy metabolism, little is known about the mechanism. In this study, we found that BHLHE40 expression was downregulated in cases of endometrial cancer of higher grade and advanced disease. Knockdown of BHLHE40 in endometrial cancer cells resulted in suppressed oxygen consumption and enhanced extracellular acidification. Suppressed pyruvate dehydrogenase (PDH) activity and enhanced lactated dehydrogenase (LDH) activity were observed in the knockdown cells. Knockdown of BHLHE40 also led to dephosphorylation of AMPKα Thr172 and enhanced phosphorylation of pyruvate dehydrogenase E1 subunit alpha 1 (PDHA1) Ser293 and lactate dehydrogenase A (LDHA) Tyr10. These results suggested that BHLHE40 modulates PDH and LDH activity by regulating the phosphorylation status of PDHA1 and LDHA. We found that BHLHE40 enhanced AMPKα phosphorylation by directly suppressing the transcription of an AMPKα-specific phosphatase, PPM1F. Our immunohistochemical study showed that the expression of BHLHE40, PPM1F, and phosphorylated AMPKα correlated with the prognosis of endometrial cancer patients. Because AMPK is a central regulator of energy metabolism in cancer cells, targeting the BHLHE40‒PPM1F‒AMPK axis may represent a strategy to control cancer development.
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Affiliation(s)
- Kazuo Asanoma
- Department of Obstetrics and Gynecology, Faculty of Medical Sciences, Kyushu University, Fukuoka, Japan.
| | - Hiroshi Yagi
- Department of Obstetrics and Gynecology, Faculty of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Ichiro Onoyama
- Department of Obstetrics and Gynecology, Faculty of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Lin Cui
- Department of Obstetrics and Gynecology, Faculty of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Emiko Hori
- Department of Obstetrics and Gynecology, Faculty of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Minoru Kawakami
- Department of Obstetrics and Gynecology, Faculty of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Shoji Maenohara
- Department of Obstetrics and Gynecology, Faculty of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Kazuhisa Hachisuga
- Department of Obstetrics and Gynecology, Faculty of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Hiroshi Tomonobe
- Department of Obstetrics and Gynecology, Faculty of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Keisuke Kodama
- Department of Obstetrics and Gynecology, Faculty of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Masafumi Yasunaga
- Department of Obstetrics and Gynecology, Faculty of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Tatsuhiro Ohgami
- Department of Obstetrics and Gynecology, Faculty of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Kaoru Okugawa
- Department of Obstetrics and Gynecology, Faculty of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Hideaki Yahata
- Department of Obstetrics and Gynecology, Faculty of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Hiroyuki Kitao
- Oral Medicine Research Center, Fukuoka Dental College, Fukuoka, Japan
| | - Kiyoko Kato
- Department of Obstetrics and Gynecology, Faculty of Medical Sciences, Kyushu University, Fukuoka, Japan
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10
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Zhou Z, Wang T, Hu T, Xu H, Cui L, Xue B, Zhao X, Pan X, Yu S, Li H, Qin Y, Zhang J, Ma L, Liang R, Tan C. Synergistic Interaction between Metal Single-Atoms and Defective WO 3- x Nanosheets for Enhanced Sonodynamic Cancer Therapy. Adv Mater 2024:e2311002. [PMID: 38408758 DOI: 10.1002/adma.202311002] [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: 10/21/2023] [Revised: 02/03/2024] [Indexed: 02/28/2024]
Abstract
Although metal single-atom (SA)-based nanomaterials are explored as sonosensitizers for sonodynamic therapy (SDT), they normally exhibit poor activities and need to combine with other therapeutic strategies. Herein, the deposition of metal SAs on oxygen vacancy (OV)-rich WO3- x nanosheets to generate a synergistic effect for efficient SDT is reported. Crystalline WO3 and OV-rich WO3- x nanosheets are first prepared by simple calcination of the WO3 ·H2 O nanosheets under an air and N2 atmosphere, respectively. Pt, Cu, Fe, Co, and Ni metal SAs are then deposited on WO3- x nanosheets to obtain metal SA-decorated WO3- x nanocomposites (M-WO3- x ). Importantly, the Cu-WO3- x sonosensitizer exhibits a much higher activity for ultrasound (US)-induced production of reactive oxygen species than that of the WO3- x and Cu SA-decorated WO3 , which is also higher than other M-WO3- x nanosheets. Both the experimental and theoretical results suggest that the excellent SDT performance of the Cu-WO3- x nanosheets should be attributed to the synergistic effect between Cu SAs and WO3- x OVs. Therefore, after polyethylene glycol modification, the Cu-WO3- x can quickly kill cancer cells in vitro and effectively eradicate tumors in vivo under US irradiation. Transcriptome sequencing analysis and further molecular validation suggest that the Cu-WO3- x -mediated SDT-activated apoptosis and TNF signaling pathways are potential drivers of tumor apoptosis induction.
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Affiliation(s)
- Zhan Zhou
- College of Chemistry and Chemical Engineering, Henan Key Laboratory of Function-Oriented Porous Materials, Luoyang Normal University, Luoyang, 471934, P. R. China
| | - Tao Wang
- State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Tingting Hu
- Department of Electrical and Electronic Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong SAR, 999077, P. R. China
| | - Hao Xu
- Interdisciplinary Research Center of Biology & Catalysis, School of Life Sciences, Northwestern Polytechnical University, Xi'an, 710072, P. R. China
- School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an, 710072, P. R. China
| | - Lin Cui
- Interdisciplinary Research Center of Biology & Catalysis, School of Life Sciences, Northwestern Polytechnical University, Xi'an, 710072, P. R. China
| | - Baoli Xue
- College of Chemistry and Chemical Engineering, Henan Key Laboratory of Function-Oriented Porous Materials, Luoyang Normal University, Luoyang, 471934, P. R. China
| | - Xinshuo Zhao
- College of Chemistry and Chemical Engineering, Henan Key Laboratory of Function-Oriented Porous Materials, Luoyang Normal University, Luoyang, 471934, P. R. China
| | - Xiangrong Pan
- College of Chemistry and Chemical Engineering, Henan Key Laboratory of Function-Oriented Porous Materials, Luoyang Normal University, Luoyang, 471934, P. R. China
| | - Shilong Yu
- Institute of Advanced Materials (IAM) and Key Laboratory of Flexible Electronics (KLoFE), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing, 211816, P. R. China
| | - Hai Li
- Institute of Advanced Materials (IAM) and Key Laboratory of Flexible Electronics (KLoFE), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing, 211816, P. R. China
| | - Yong Qin
- Interdisciplinary Research Center of Biology & Catalysis, School of Life Sciences, Northwestern Polytechnical University, Xi'an, 710072, P. R. China
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan, 030001, P. R. China
| | - Jiankang Zhang
- Interdisciplinary Research Center of Biology & Catalysis, School of Life Sciences, Northwestern Polytechnical University, Xi'an, 710072, P. R. China
| | - Lufang Ma
- College of Chemistry and Chemical Engineering, Henan Key Laboratory of Function-Oriented Porous Materials, Luoyang Normal University, Luoyang, 471934, P. R. China
| | - Ruizheng Liang
- State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
- Quzhou Institute for Innovation in Resource Chemical Engineering, Quzhou, 324000, P. R. China
| | - Chaoliang Tan
- Department of Electrical and Electronic Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong SAR, 999077, P. R. China
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11
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Cui L, Yang Y, Jiang S, Cao X, Chu W, Chen J, Sun B, Ren K, Zhang CY. Exogenous Co-Reactant-Free Electrochemiluminescent Biosensor for Ratiometric Measurement of α-Glucosidase Based on a ZIF-67-Regulated Hydrogen-Bonded Organic Framework. ACS Sens 2024; 9:1023-1030. [PMID: 38353664 DOI: 10.1021/acssensors.4c00036] [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: 02/24/2024]
Abstract
The development of highly sensitive and selective analytical approaches for monitoring enzymatic activity is critical for disease diagnosis and biomedical research. Herein, we develop an exogenous co-reactant-free electrochemiluminescence (ECL) biosensor for the ratiometric measurement of α-glucosidase (α-Glu) based on a zeolitic imidazolate framework (ZIF-67)-regulated pyrene-based hydrogen-bonded organic framework (HOF-101). Target α-Glu can hydrolyze maltose to α-d-glucose, which can subsequently react with GOx to produce gluconic acid. The resultant gluconic acid can dissolve ZIF-67, leading to the recovery of the HOF-101 cathodic ECL signal and the decrease of the luminol anodic ECL signal. The long-range ordered structure of HOF-101 can speed up charge transfer, resulting in a stable and strong cathodic ECL signal. Moreover, ZIF-67 can not only efficiently quench the ECL signal of HOF-101 due to ECL resonance energy transfer between HOF-101 and ZIF-67 as well as the steric hindrance effect of ZIF-67 but also enhance the anodic ECL emission of luminol in dissolved O2 system because of its ordered and porous crystalline structure and the atomically dispersed Co2+. Notably, HOF-101 possesses a higher ECL efficiency (32.22%) compared with the Ru(bpy)32+ standard. Importantly, this ratiometric ECL biosensor shows high sensitivity (a detection limit of 0.19 U L-1) and a broad linear range (0.2-50 U L-1). This biosensor can efficiently eliminate systematic errors and enhance detection reliability without the involvement of exogenous co-reactants, and it displays good assay performance in human serum samples, holding great promise in biomedical research studies.
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Affiliation(s)
- Lin Cui
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan 250014, China
| | - Yuncong Yang
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan 250014, China
| | - Su Jiang
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan 250014, China
| | - Xueting Cao
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan 250014, China
| | - Wenqi Chu
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan 250014, China
| | - Jianwei Chen
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan 250014, China
| | - Bing Sun
- School of Science, China University of Geosciences (Beijing), Beijing 100083, China
| | - Kewei Ren
- School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Chun-Yang Zhang
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China
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12
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Ji R, Wang L, Shang Y, Du S, Xiao Y, Dong W, Cui L, Gao R, Ren K. RNA Condensate as a Versatile Platform for Improving Fluorogenic RNA Aptamer Properties and Cell Imaging. J Am Chem Soc 2024; 146:4402-4411. [PMID: 38329936 DOI: 10.1021/jacs.3c09162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2024]
Abstract
Fluorogenic RNA aptamers are valuable tools for cell imaging, but they still suffer from shortcomings such as easy degradation, limited photostability, and low fluorescence enhancement. Molecular crowding conditions enable the stabilization of the structure, promotion of folding, and improvement of activity of functional RNA. Based on artificial RNA condensates, here we present a versatile platform to improve fluorogenic RNA aptamer properties and develop sensors for target analyte imaging in living cells. Using the CUG repeat as a general tag to drive phase separation, various fluorogenic aptamer-based RNA condensates (FLARE) were prepared. We show that the molecular crowding of FLARE can improve the enzymatic resistance, thermostability, photostability, and binding affinity of fluorogenic RNA aptamers. Moreover, the FLARE systems can be modularly engineered into sensors (FLARES), which demonstrate enhanced brightness and sensitivity compared to free sensors dispersed in homogeneous solution. This scalable design principle provides new insights into RNA aptamer property regulation and cellular imaging.
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Affiliation(s)
- Ruoyang Ji
- School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, P.R. China
| | - Long Wang
- School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, P.R. China
| | - Yuzhe Shang
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, P.R. China
| | - Songyuan Du
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, P.R. China
| | - Yang Xiao
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, P.R. China
| | - Wei Dong
- School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, P.R. China
| | - Lin Cui
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan 250014, P.R. China
| | - Ruru Gao
- School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, P.R. China
| | - Kewei Ren
- School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, P.R. China
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13
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Yang G, Yang Q, Cui L, Dong Q, Meng Z, Yang C, Sun J. Neoadjuvant versus adjuvant radiotherapy for resectable locally advanced gastric cancer: A SEER population analysis. Heliyon 2024; 10:e25461. [PMID: 38356572 PMCID: PMC10864974 DOI: 10.1016/j.heliyon.2024.e25461] [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: 06/04/2023] [Revised: 11/16/2023] [Accepted: 01/27/2024] [Indexed: 02/16/2024] Open
Abstract
Background There is a lack of evidence on whether resectable locally advanced gastric cancer (LAGC) patients could benefit from neoadjuvant or adjuvant radiotherapy (RT). Methods Patients with surgically diagnosed LAGC from 2004 to 2015 were retrieved from the SEER database. Kaplan-Meier method and the log-rank test were used to evaluate survival analysis between neoadjuvant and adjuvant RT. Univariate Cox regression was used to evaluate the hazard ratio (HR) and 95 % confidence interval (CI). Results A total of 4790 LAGC patients who treated with surgery and RT were identified, including 3187 patients with intestinal subtype and 1603 patients with diffuse subtype. For patients with both intestinal and diffuse subtypes, median cancer-specific survival (mCSS) was better with adjuvant RT or neoadjuvant RT. Moreover, patients benefited more from adjuvant RT than neoadjuvant RT (intestinal subtype: mCSS 49 vs. 36 months, P < 0.001; diffuse subtype: mCSS 32 vs. 26 months, P = 0.050). Further analyses showed that patients with intestinal subtype and T1-2N+, T3N-, T3N+ subgroups, as well as patients with diffuse subtype and T1-2N+ and T3N+ subgroups benefited more from adjuvant RT than those with neoadjuvant RT. Patients in the diffuse subtype and T3N- subgroups also tended benifit from adjuvant RT and survive. There was no difference in survival between the T4N- and T4N + subgroups of the two subtypes. After propensity score matching, subgroup analysis identified an improved survival in favor of adjuvant RT in the age ≥65 years and female subgroups in diffuse subtypes and T4N+ patients. Conclusions For patients with resectable LAGC in the T1-2N+, T3N-, T3N+ clinical subgroups, adjuvant RT yields more benefits than neoadjuvant RT or no RT, which is worthy of prospective clinical trial.
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Affiliation(s)
- Guangrong Yang
- Department of Oncology, The People's Hospital of Qijiang District, Chongqing 401420, China
| | - Qiao Yang
- Department of Ultrasound, The 941th Hospital of the PLA Joint Logistic Support Force, Xining 810007, China
| | - Lin Cui
- Emergency Department, The 941th Hospital of the PLA Joint Logistic Support Force, Xining 810007, China
| | - Qiang Dong
- Department of General Medicine, The People's Hospital of Qijiang District, Chongqing 401420, China
| | - Zhu Meng
- Department of Oncology, The People's Hospital of Qijiang District, Chongqing 401420, China
| | - Changqing Yang
- Department of Oncology, The People's Hospital of Qijiang District, Chongqing 401420, China
| | - Jianguo Sun
- Department of Oncology, Xinqiao Hospital, Army Medical University, Chongqing, 400037, China
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14
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Guo B, Li P, Qin B, Wang S, Zhang W, Shi Y, Yang J, Niu J, Chen S, Chen X, Cui L, Fu Q, Guo L, Hou Z, Li H, Li X, Liu R, Liu X, Mao Z, Niu X, Qin C, Song X, Sun R, Sun T, Wang D, Wang Y, Xu L, Xu X, Yang Y, Zhang B, Zhou D, Li Z, Chen Y, Jin Y, Du J, Shao H. An analysis of differences in Carbapenem-resistant Enterobacterales in different regions: a multicenter cross-sectional study. BMC Infect Dis 2024; 24:116. [PMID: 38254025 PMCID: PMC10804584 DOI: 10.1186/s12879-024-09005-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2023] [Accepted: 01/09/2024] [Indexed: 01/24/2024] Open
Abstract
OBJECTIVE This study aimed to explore the characteristics of carbapenem-resistant Enterobacterales (CRE) patients in the intensive care unit (ICU) in different regions of Henan Province to provide evidence for the targeted prevention and treatment of CRE. METHODS This was a cross-sectional study. CRE screening was conducted in the ICUs of 78 hospitals in Henan Province, China, on March 10, 2021. The patients were divided into provincial capital hospitals and nonprovincial capital hospitals for comparative analysis. RESULTS This study involved 1009 patients in total, of whom 241 were CRE-positive patients, 92 were in the provincial capital hospital and 149 were in the nonprovincial capital hospital. Provincial capital hospitals had a higher rate of CRE positivity, and there was a significant difference in the rate of CRE positivity between the two groups. The body temperature; immunosuppressed state; transfer from the ICU to other hospitals; and use of enemas, arterial catheters, carbapenems, or tigecycline at the provincial capital hospital were greater than those at the nonprovincial capital hospital (P < 0.05). However, there was no significant difference in the distribution of carbapenemase strains or enzymes between the two groups. CONCLUSIONS The detection rate of CRE was significantly greater in provincial capital hospitals than in nonprovincial capital hospitals. The source of the patients, invasive procedures, and use of advanced antibiotics may account for the differences. Carbapenem-resistant Klebsiella pneumoniae (CR-KPN) was the most prevalent strain. Klebsiella pneumoniae carbapenemase (KPC) was the predominant carbapenemase enzyme. The distributions of carbapenemase strains and enzymes were similar in different regions.
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Affiliation(s)
- Bo Guo
- Department of Critical Care Medicine, Henan Key Laboratory for Critical Care Medicine, Zhengzhou Key Laboratory for Critical Care Medicine, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, People's Hospital of Henan University, Zhengzhou, Henan, China
| | - Peili Li
- Department of Public Utilities Development, Henan Provincial People's Hospital, Zhengzhou, China
| | - Bingyu Qin
- Department of Critical Care Medicine, Henan Key Laboratory for Critical Care Medicine, Zhengzhou Key Laboratory for Critical Care Medicine, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, People's Hospital of Henan University, Zhengzhou, Henan, China
| | - Shanmei Wang
- Department of Microbiology Laboratory, Henan Provincial People's Hospital, Zhengzhou, China
| | - Wenxiao Zhang
- Department of Critical Care Medicine, Henan Key Laboratory for Critical Care Medicine, Zhengzhou Key Laboratory for Critical Care Medicine, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, People's Hospital of Henan University, Zhengzhou, Henan, China
| | - Yuan Shi
- Department of Critical Care Medicine, Henan Key Laboratory for Critical Care Medicine, Zhengzhou Key Laboratory for Critical Care Medicine, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, People's Hospital of Henan University, Zhengzhou, Henan, China
| | - Jianxu Yang
- Department of Critical Care Medicine, Henan Key Laboratory for Critical Care Medicine, Zhengzhou Key Laboratory for Critical Care Medicine, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, People's Hospital of Henan University, Zhengzhou, Henan, China
| | - Jingjing Niu
- Department of Critical Care Medicine, Henan Key Laboratory for Critical Care Medicine, Zhengzhou Key Laboratory for Critical Care Medicine, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, People's Hospital of Henan University, Zhengzhou, Henan, China
| | - Shifeng Chen
- Department of Critical Care Medicine, The Second People's Hospital of Pingdingshan City, Pingdingshan, China
| | - Xiao Chen
- Department of Critical Care Medicine, Nanyang Nanshi Hospital, Nanyang, China
| | - Lin Cui
- Department of Critical Care Medicine, Yellow River Central Hospital, Zhengzhou, China
| | - Qizhi Fu
- Department of Critical Care Medicine, The First Affiliated Hospital of Henan University of Science and Technology, Luoyang, China
| | - Lin Guo
- Department of Critical Care Medicine, The Seventh People's Hospital of Zhengzhou, Zhengzhou, China
| | - Zhe Hou
- Department of Critical Care Medicine, Zhengzhou Orthopedic Hospital, Zhengzhou, China
| | - Hua Li
- Department of Critical Care Medicine, Henan Provincial Hospital of Traditional Chinese Medicine, Zhengzhou, China
| | - Xiaohui Li
- Department of Critical Care Medicine, Fuwai Central China Cardiovascular Hospital, Zhengzhou, China
| | - Ruifang Liu
- Department of Critical Care Medicine, The Third People's Hospital of Henan Province, Zhengzhou, China
| | - Xiaojun Liu
- Department of Critical Care Medicine, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Zhengrong Mao
- Department of Critical Care Medicine, The First Affiliated Hospital of Henan University of Chinese Medicine, Zhengzhou, China
| | - Xingguo Niu
- Department of Critical Care Medicine, Zhengzhou People's Hospital, Zhengzhou, 450000, China
| | - Chao Qin
- Department of Critical Care Medicine, The Fifth Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Xianrong Song
- Department of Critical Care Medicine, Henan Provincial Chest Hospital, Zhengzhou, China
| | - Rongqing Sun
- Department of Critical Care Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Tongwen Sun
- Department of Critical Care Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Daoxie Wang
- Department of Critical Care Medicine, The Third People's Hospital of Zhengzhou, Zhengzhou, China
| | - Yong Wang
- Department of Critical Care Medicine, Huaihe Hospital of Henan University, Kaifeng, China
| | - Lanjuan Xu
- Department of Critical Care Medicine, Zhengzhou Central Hospital, Zhengzhou, China
| | - Xin Xu
- Department of Critical Care Medicine, The First Affiliated Hospital of Henan University, Kaifeng, China
| | - Yuejie Yang
- Department of Critical Care Medicine, The Sixth People's Hospital of Zhengzhou, Zhengzhou, China
| | - Baoquan Zhang
- Department of Critical Care Medicine, The Third Affiliated Hospital of Xinxiang Medical College, Xinxiang, China
| | - Dongmin Zhou
- Department of Critical Care Medicine, Henan Cancer Hospital, Zhengzhou, China
| | - Zhaozhen Li
- Department of Critical Care Medicine, Henan Provincial Chest Hospital, Zhengzhou, China
| | - Yinyin Chen
- Department of Critical Care Medicine, Henan Key Laboratory for Critical Care Medicine, Zhengzhou Key Laboratory for Critical Care Medicine, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, People's Hospital of Henan University, Zhengzhou, Henan, China
| | - Yue Jin
- Department of Critical Care Medicine, Henan Key Laboratory for Critical Care Medicine, Zhengzhou Key Laboratory for Critical Care Medicine, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, People's Hospital of Henan University, Zhengzhou, Henan, China
| | - Juan Du
- Department of Critical Care Medicine, Henan Key Laboratory for Critical Care Medicine, Zhengzhou Key Laboratory for Critical Care Medicine, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, People's Hospital of Henan University, Zhengzhou, Henan, China
| | - Huanzhang Shao
- Department of Critical Care Medicine, Henan Key Laboratory for Critical Care Medicine, Zhengzhou Key Laboratory for Critical Care Medicine, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, People's Hospital of Henan University, Zhengzhou, Henan, China.
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15
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Li F, Cao D, Yao L, Gu W, Liu Z, Li D, Cui L. Targeted delivery of miR-34a-5p by phenylborate-coupled polyethylenimide nanocarriers for anti-KSHV treatment. Front Bioeng Biotechnol 2024; 11:1343956. [PMID: 38260739 PMCID: PMC10801047 DOI: 10.3389/fbioe.2023.1343956] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2023] [Accepted: 12/20/2023] [Indexed: 01/24/2024] Open
Abstract
Kaposi's sarcoma-associated herpesvirus (KSHV) can infect a variety of cells and cause malignant tumors. At present, the use of microRNA (miRNA) for anti-KSHV is a promising treatment strategy, but the instability and non-specific uptake of miRNA still limit its use in the treatment of KSHV. In the present study, we constructed a nano-drug delivery system employing chemical grafting and electrostatic adsorption to solve the problems of easy degradation and low cell uptake of miRNA during direct administration. This nano-drug delivery system is to graft 4-carboxyphenylboric acid (PBA) and lauric acid (LA) onto polyethylenimine (PEI) through amidation reaction, and then prepare cationic copolymer nanocarriers (LA-PEI-PBA). The drug-carrying nanocomplex LA-PEI-PBA/miR-34a-5p was formed after further electrostatic adsorption of miR-34a-5p on the carrier and could protect miR-34a-5p from nuclease and serum degradation. Modification of the drug-carrying nanocomplex LA-PEI-PBA/miR-34a-5p by targeted molecule PBA showed effective uptake, increase in the level of miR-34a-5p, and inhibition of cell proliferation and migration in KSHV-infected cells. In addition, the drug-carrying nanocomplex could also significantly reduce the expression of KSHV lytic and latent genes, achieving the purpose of anti-KSHV treatment. In conclusion, these cationic copolymer nanocarriers with PBA targeting possess potential applications in nucleic acid delivery and anti-KSHV therapy.
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Affiliation(s)
- Fangling Li
- School of Chemistry and Chemical Engineering, State Key Laboratory Incubation Base for Green Processing of Chemical Engineering, Shihezi University, Shihezi, Xinjiang, China
| | - Dongdong Cao
- School of Medicine, Shihezi University, Shihezi, Xinjiang, China
| | - Lixia Yao
- School of Medicine, Shihezi University, Shihezi, Xinjiang, China
| | - Wenyi Gu
- Australian Institute for Bioengineering and Nanotechnology (AIBN), University of Queensland (UQ), Brisbane, QLD, Australia
| | - Zhiyong Liu
- School of Chemistry and Chemical Engineering, State Key Laboratory Incubation Base for Green Processing of Chemical Engineering, Shihezi University, Shihezi, Xinjiang, China
| | - Dongmei Li
- School of Medicine, Shihezi University, Shihezi, Xinjiang, China
| | - Lin Cui
- School of Medicine, Shihezi University, Shihezi, Xinjiang, China
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Cui L, Tu YY, Zhang Z, Guo YH, Guan YH, Xie F, Guo QH. Associations and Potential Multiple Mechanisms between Subjective Hearing Loss and Cognitive Impairment. J Prev Alzheimers Dis 2024; 11:649-660. [PMID: 38706281 DOI: 10.14283/jpad.2024.62] [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: 05/07/2024]
Abstract
BACKGROUND Subjective hearing loss (SHL) refers to an individual's self-assessment of their hearing loss. The association and underlying mechanisms between SHL and cognitive impairment still necessitate elucidation. OBJECTIVES To validate potential mechanisms between SHL and cognitive impairment. DESIGN Cross-section. SETTING Shanghai, China. PARTICIPANTS A total of 2369 individuals from communities and the cognitive disorder clinic. MEASUREMENTS All participants were subjected to a comprehensive neuropsychological assessment, encompassing the Hearing Handicap Inventory for the Elderly-Screening Version (HHIE-S). The participants' brain β-amyloid (Aβ) deposition status, plasma biomarkers associated with Alzheimer's disease (AD), and cardiovascular risk factors were also collected. RESULTS In individuals with a heightened SHL, elevated HHIE-S score was linked to diminished cognitive and daily functioning as well as heightened levels of depressed mood. This correlation was observed in auditory memory performance but not in visual memory. The influence of SHL on cognitive function was mediated by depressed mood. SHL was associated with diabetes and smoking, whereas cognitive function was associated with hyperlipidemia and alcohol consumption. In individuals with positive brain Aβ deposition, SHL demonstrated associations with cognitive function independent of plasma Aβ42/40 ratio, P-tau181, neurofilament light chain, and APOE allele status. CONCLUSION SHL has an independent effect on cognitive impairment. The findings do no provide evidence for the common cause mechanism. Instead, the findings support the presence of a cognitive resource mechanism and an impoverished environment mechanism, along with the potential for a pathological interaction mechanism.
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Affiliation(s)
- L Cui
- Qi-Hao Guo, Department of Gerontology, Shanghai Sixth People's Hospital, Shanghai Jiao Tong University School of Medicine, 600 Yishan Road, Shanghai, 200233, China, Phone: +86 13817741448, E-mail: ; Fang Xie, Department of Nuclear Medicine and PET Center, Huashan Hospital, Fudan University, 518 East Wuzhong Road, Shanghai, 200040, China, Phone: +86 13818672745, E-mail:
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Song L, Zhang Q, Min L, Guo X, Gao W, Cui L, Zhang CY. Electrochemiluminescence enhanced by isolating ACQphores in imine-linked covalent organic framework for organophosphorus pesticide assay. Talanta 2024; 266:124964. [PMID: 37481885 DOI: 10.1016/j.talanta.2023.124964] [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: 05/09/2023] [Revised: 07/04/2023] [Accepted: 07/18/2023] [Indexed: 07/25/2023]
Abstract
Most of covalent organic frameworks (COFs) are non or weakly emissive due to either the molecular thermal motion-mediated energy dissipation or the aggregation-caused quenching (ACQ) effect. Herein, we synthesize an imine-linked COF (TFPPy-TPh-COF) with high electrochemiluminescence (ECL) emission and the capability of eliminating the ACQ effect and further construct an ECL sensor for malathion detection. The imine-linked COF is obtained by the condensation reaction of (1,1':3',1″-terphenyl)-4,4″-diamine (TPh) and 1,3,6,8-tetrakis(p-formylphenyl)pyrene (TFPPy), and it has higher ECL efficiency than TFPPy aggregates due to the separation of ACQ luminophores (i.e., TFPPy) from each other by TPh and the restriction of intramolecular motions of TFPPy and TPh to reduce the nonradiative decay. The efficient quenching of ECL is achieved by electrochemiluminescence resonance energy transfer (ERET) from the excited state of the TFPPy-TPh-COF to zeolite imidazolate framework-8 (ZIF-8) and the steric hindrance of ZIF-8. Acetylcholinesterase (AChE) can enzymatically hydrolyze acetylcholine (ACh) to generate acetic acid. The resultant acetic acid can trigger the dissolution of ZIF-8 to produce an enhanced ECL signal. Malathion as an organophosphorus pesticide serves as an AChE inhibitor to prevent the production of acetic acid, inducing the decrease of ECL signal. This sensor displays a limit of detection (LOD) of 2.44 pg/mL and a wide dynamic detection range of 0.01-1000 ng/mL. Furthermore, it can be used to detect other organophosphates pesticides (e.g., methidathion, chlorpyrifos, and paraoxon) and measure malathion in real samples (i.e., pakchoi, lettuce, and apples).
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Affiliation(s)
- Linlin Song
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan, 250014, China
| | - Qian Zhang
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan, 250014, China
| | - Lei Min
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan, 250014, China
| | - Xinyu Guo
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan, 250014, China
| | - Wenqiang Gao
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China.
| | - Lin Cui
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan, 250014, China.
| | - Chun-Yang Zhang
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 211189, China.
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Xu H, Liang N, Cui L, Zhang H, Yang B, Jin Z. Synergistic effect of interface and defect engineering of MoC/MoO 2 nano dot encapsulated N-doped carbon nanoflowers for highly durable dye-sensitized solar cells. J Colloid Interface Sci 2024; 653:1620-1629. [PMID: 37812838 DOI: 10.1016/j.jcis.2023.10.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Revised: 09/12/2023] [Accepted: 10/02/2023] [Indexed: 10/11/2023]
Abstract
The design and fabrication of advanced counter electrodes (CEs) for dye-sensitized solar cells (DSSCs) are limited by the scarcity of active sites and poor durability. Herein, we report the controlled preparation of a heterostructured nanoreactor CE based on defect-rich N-doped carbon nanoflowers (NCF) encapsulating MoC/MoO2 nano dots (NDs) in a well-defined heterophase (MoC/MoO2-NCF). The MoC/MoO2 NDs were uniformly dispersed on the NCF, and the NCF limited the size of the MoC/MoO2 NDs and prevented their agglomeration, thus maximizing the electrochemically active surface area of MoC/MoO2. Moreover, the synergistic effect between the MoC/MoO2 interface and the N-defects is conducive to the full exposure of the active sites. Furthermore, theoretical calculations revealed that the MoC/MoO2 heterojunction played a unique role in modulating the electronic structure and regulating the adsorption energy of tri-iodide in the iodide reduction reaction. The MoC/MoO2-NCF CEs in DSSCs demonstrated a power conversion efficiency (PCE) of 9.92% and high durability, exceeding the PCE (8.36%) and durability of Pt CEs. Overall, this study offers insights into the controlled synthesis of high-performance Mo-based composite CE materials for DSSCs.
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Affiliation(s)
- Haifeng Xu
- School of Information Engineering, Suzhou University, Suzhou 234000, PR China.
| | - Nannan Liang
- School of Information Engineering, Suzhou University, Suzhou 234000, PR China
| | - Lin Cui
- School of Information Engineering, Suzhou University, Suzhou 234000, PR China
| | - Haining Zhang
- School of Information Engineering, Suzhou University, Suzhou 234000, PR China
| | - Bo Yang
- Anhui Province Key Laboratory of Pollutant Sensitive Materials and Environmental Remediation, School of Physics and Electronic Information, Huaibei Normal University, Huaibei 235000, PR China
| | - Zhong Jin
- State Key Laboratory of Coordination Chemistry, MOE Key Laboratory of Mesoscopic Chemistry, MOE Key Laboratory of High Performance Polymer, Materials and Technology, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, Jiangsu 210023, PR China.
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Cui L, Jiang E, Liu Z, Li J. Relationship between the impacted mandibular third molar and adjacent second molar' external root resorption by cone-bean computed tomography analysis. Med Oral Patol Oral Cir Bucal 2024; 29:e27-e35. [PMID: 37992149 PMCID: PMC10765336 DOI: 10.4317/medoral.26044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Accepted: 08/24/2023] [Indexed: 11/24/2023] Open
Abstract
BACKGROUND The relationship between the impacted mandibular third molar (IMTM) and the external root resorption (ERR) of the mandibular second molar (MSM) was analysed with cone-beam computed tomography (CBCT). The risk factors affecting the ERR of the MSM were examined to provide a reference. MATERIAL AND METHODS A total of 327 patients (total: 578 teeth) admitted to the Affiliated Hospital of Yanbian University for IMTM extraction from January 2017 to December 2019 was chosen and divided according to gender and age. The correlation between the IMTM and ERR of MSM was analysed, including inclination angle, impaction direction and depth. The relationship of mandibular ascending ramus classification with ERR of MSM was also analysed. In addition, the correlation between the MTM impaction type and the severity of ERR was analysed. RESULTS The incidence of ERR of MSM in male patients was higher than in females (27.9% vs.17.6%, p = 0.018). The occurrence and the site of ERR showed statistical differences in the inclination angle [(≤20°, 3.6%) vs. (21°-40°, 27.1%) vs. (41°-60°, 27.6%) vs. (61°-80°, 25.6%) vs. (>80°, 31.7%), p <0.001], impaction direction [(Vertical, 1.1%) vs. (Mesial, 32.7%) vs. (Horizontal, 25.3%), p <0.001] and depth of MTM [(Low position, 38.6%) vs. (Median position, 32.0%) vs. (High position, 13.7%), p <0.001]. Also, there was a significant difference in the mandibular ascending ramus type [(Class I, 17.4%) vs. (Class II, 32.3%) vs. (Class III, 44.9%), p <0.001]. In addition, the severity of ERR showed statistical differences in the mesial (40.9%, p<0.05), lower impaction (54.5%, p<0.05) depth of MTM and type III of mandibular ascending ramus (63.6%, p<0.05). CONCLUSIONS The inclination angle, impaction direction, and depth of MTM were the influencing factors for the occurrence and site of ERR. Also, mandibular ascending ramus type was the impact fact. For MTM with mesioangular, lower impaction, and mandibular ascending ramus with type III, the ERR of the MSM was severer.
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Affiliation(s)
- L Cui
- Department of Stomatology Affiliated Hospital of Yanbian University No.1327 of Juzi Road, Xinxing District Yanji 133000, China
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Li LS, Guan K, Yin J, Wang LL, Zhi YX, Sun JL, Li H, Wen LP, Tang R, Gu JQ, Wang ZX, Cui L, Xu YY, Bian SN. [Risk factors of systemic allergic reactions caused by subcutaneous allergen immunotherapy]. Zhonghua Yu Fang Yi Xue Za Zhi 2023; 57:1972-1977. [PMID: 38186144 DOI: 10.3760/cma.j.cn112150-20230703-00500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 01/09/2024]
Abstract
Objective: To investigate the incidence and risk factors of systemic allergic reactions induced by subcutaneous immunotherapy (SCIT) in patients undergoing SCIT injections in Peking Union Medical College Hospital (PUMCH). Methods: This is a single center retrospective cohort study. Using the outpatient information system of PUMCH, the demographic information and injection-related reaction data of patients undergoing SCIT injection in Allergy Department of PUMCH from December 2018 to December 2022 were retrospectively analyzed to count the incidence and risk factors of systemic allergic reactions caused by SCIT. Mann-Whitney nonparametric test or chi-square test was used for single-factor analysis, and multiple logistic regression was used for multiple-factor analysis. Results: A total of 2 897 patients received 18 070 SCIT injections in Allergy Department during the four years, and 40 systemic allergic reactions occurred, with the overall incidence rate of 0.22%. The incidence of systemic allergic reaction was 0.37% when using imported dust mite preparation and 0.15% when using domestic multi-component allergen preparation. The risk factors significantly related with SCIT-induced systemic allergic reactions in patients using imported dust mite preparation were age less than 18 years old (OR=3.186,95%CI: 1.255-8.085), highest injection concentration (OR value could not be calculated because all patients with systemic reactions were injected with highest concentration), and large local reaction in previous injection (OR=22.264,95%CI: 8.205-60.411). The risk factors for SCIT-induced systemic allergic reactions in patients using domestic allergen preparation were 5 or more types of allergens (OR=3.455,95%CI: 1.147-10.402), highest injection concentration (OR=3.794,95%CI: 1.226-11.740) and large local reaction in previous injection (OR=63.577,95%CI: 22.248-181.683). However, SCIT injection in pollen allergic patients during the pollen season did not show a correlation with systemic allergic reaction. Conclusion: The incidence of SCIT-induced systemic allergic reactions was low in the Chinese patient population of this study. Patients with one or more risk factors, such as multiple allergen injection, highest injection concentration, large local reaction in previous injection, should be given high attention and vigilance against systemic allergic reactions.
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Affiliation(s)
- L S Li
- Department of Allergy, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing Key Laboratory of Precision Medicine for Diagnosis and Treatment on Allergic Diseases, Beijing 100730,China
| | - K Guan
- Department of Allergy, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing Key Laboratory of Precision Medicine for Diagnosis and Treatment on Allergic Diseases, Beijing 100730,China
| | - J Yin
- Department of Allergy, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing Key Laboratory of Precision Medicine for Diagnosis and Treatment on Allergic Diseases, Beijing 100730,China
| | - L L Wang
- Department of Allergy, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing Key Laboratory of Precision Medicine for Diagnosis and Treatment on Allergic Diseases, Beijing 100730,China
| | - Y X Zhi
- Department of Allergy, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing Key Laboratory of Precision Medicine for Diagnosis and Treatment on Allergic Diseases, Beijing 100730,China
| | - J L Sun
- Department of Allergy, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing Key Laboratory of Precision Medicine for Diagnosis and Treatment on Allergic Diseases, Beijing 100730,China
| | - H Li
- Department of Allergy, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing Key Laboratory of Precision Medicine for Diagnosis and Treatment on Allergic Diseases, Beijing 100730,China
| | - L P Wen
- Department of Allergy, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing Key Laboratory of Precision Medicine for Diagnosis and Treatment on Allergic Diseases, Beijing 100730,China
| | - R Tang
- Department of Allergy, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing Key Laboratory of Precision Medicine for Diagnosis and Treatment on Allergic Diseases, Beijing 100730,China
| | - J Q Gu
- Department of Allergy, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing Key Laboratory of Precision Medicine for Diagnosis and Treatment on Allergic Diseases, Beijing 100730,China
| | - Z X Wang
- Department of Allergy, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing Key Laboratory of Precision Medicine for Diagnosis and Treatment on Allergic Diseases, Beijing 100730,China
| | - L Cui
- Department of Allergy, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing Key Laboratory of Precision Medicine for Diagnosis and Treatment on Allergic Diseases, Beijing 100730,China
| | - Y Y Xu
- Department of Allergy, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing Key Laboratory of Precision Medicine for Diagnosis and Treatment on Allergic Diseases, Beijing 100730,China
| | - S N Bian
- Department of Allergy, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing Key Laboratory of Precision Medicine for Diagnosis and Treatment on Allergic Diseases, Beijing 100730,China
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Zhu C, Zuo M, Yang Y, Zhao NN, Wang X, Cui L, Zhang CY. Construction of a Dual-Mode Biosensor with Ferrocene as Both a Signal Enhancer and a Signal Tracer for Electrochemiluminescent and Electrochemical Enantioselective Recognition. Anal Chem 2023; 95:17920-17927. [PMID: 37983085 DOI: 10.1021/acs.analchem.3c04304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2023]
Abstract
We demonstrate for the first time the construction of a dual-mode biosensor for electrochemiluminescent (ECL) and electrochemical chiral recognition of l- and d-isomers of amino acids, with ferrocene (Fc) as both a signal enhancer and a signal tracer. With the dissolved oxygen as a coreactant, ZnIn2S4 acts as the ECL emitter to generate a weak cathodic ECL signal. Fc can enter into the β-cyclodextrin (β-CD) cavity on ZnIn2S4-modified electrode as a result of host-guest interaction. Since Fc can promote H2O and O2 to produce abundant reactive oxygen species (ROS) (e.g., O2·- and ·OH), the ECL signal of ZnIn2S4 can be further amplified with Fc as a coreaction accelerator. Meanwhile, Fc molecules on the β-CD/ZnIn2S4-modified electrode can be electrochemically oxidized to Fc+ to produce a remarkable oxidation peak current. When l-histidine (l-His) is present, the matching of the l-His configuration with the β-CD cavity leads to the entrance of more l-His into the cavity of β-CD than d-histidine (d-His), and the subsequent competence of l-His with Fc on the Fc/β-CD/ZnIn2S4-modified electrode induces the decrease in both Fc peak current and ZnIn2S4-induced ECL intensity. This dual-mode biosensor can efficiently discriminate l-His from d-His, and it can sensitively monitor l-His with a detection limit of 7.60 pM for ECL mode and 3.70 pM for electrochemical mode. Moreover, this dual-mode biosensor can selectively discriminate l-His from other l- and d-isomers (e.g., threonine, phenylalanine, and glutamic acid), with potential applications in the chiral recognition of nonelectroactive chiral compounds, bioanalysis, and disease diagnosis.
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Affiliation(s)
- Chenyu Zhu
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan 250014, China
| | - Maoding Zuo
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan 250014, China
| | - Yuncong Yang
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan 250014, China
| | - Ning-Ning Zhao
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan 250014, China
| | - Xiaolei Wang
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan 250014, China
| | - Lin Cui
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan 250014, China
| | - Chun-Yang Zhang
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China
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Hu J, Zhang YT, Han Y, Ma F, Li CZ, Cui L, Zhang CY. Methylation-Powered Assembly of a Single Quantum Dot-Based FRET Nanosensor for Antibody-Free and Enzyme-Free Monitoring of Locus-Specific N6-Methyladenosine in Clinical Tissues. Anal Chem 2023; 95:17945-17953. [PMID: 38000786 DOI: 10.1021/acs.analchem.3c04571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2023]
Abstract
N6-Methyladenosine (m6A) is the most pervasive and evolutionarily conserved epitranscriptomic modification in long noncoding RNA (lncRNA), and its dysregulation may induce aberrant transcription and translation programs. Herein, we demonstrate the methylation-powered assembly of a single quantum dot (QD)-based fluorescence resonance energy transfer (FRET) nanosensor for antibody- and enzyme-free monitoring of locus-specific m6A in clinical tissues. The m6A-sensitive DNAzyme VMC10 is employed to identify a specific m6A site in lncRNA, and it catalyzes the hydrolytic cleavage of unmethylated lncRNA. The cleaved lncRNA fails to trigger the subsequent catalytic hairpin assembly (CHA) reaction due to the energy barrier. In contrast, when m6A-lncRNA is present, the methyl group in m6A protects lncRNA from VMC10-mediated cleavage. With the aid of an assistant probe, the retained intact m6A-lncRNA is released from the VMC10/lncRNA complex and subsequently triggers the CHA reaction, generating abundant AF647/biotin dual-labeled duplexes. The assembly of AF647/biotin dual-labeled duplexes onto 605QD results in efficient FRET between 605QD and AF647. The FRET signal can be simply quantified by single-molecule detection. Notably, this assay can be implemented in an antibody-free and enzyme-free manner. This nanosensor can sensitively quantify target m6A with a detection limit of 0.47 fM, and it can discriminate as low as a 0.001% m6A level from excess coexisting counterparts. Importantly, this nanosensor can monitor the cellular m6A level with single-cell sensitivity and profile target m6A expression in breast cancer and healthy para-cancerous tissues, providing a powerful tool for studying the physiological and pathological functions of m6A.
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Affiliation(s)
- Jinping Hu
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan 250014, China
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China
| | - Ya-Ting Zhang
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan 250014, China
| | - Yun Han
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China
| | - Fei Ma
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China
| | - Chen-Zhong Li
- Biomedical Engineering, School of Medicine, The Chinese University of Hong Kong, Shenzhen 518172, China
| | - Lin Cui
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan 250014, China
| | - Chun-Yang Zhang
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China
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Wang WQ, Ge J, Ma HH, Lian HY, Cui L, Zhang L, Li ZG, Wang TY, Zhang R. [Efficacy and safety of intermediate-dose cytarabine in the treatment of children with refractory high risk Langerhans cell histiocytosis]. Zhonghua Er Ke Za Zhi 2023; 61:1118-1123. [PMID: 38018049 DOI: 10.3760/cma.j.cn112140-20230928-00231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 11/30/2023]
Abstract
Objective: To analyze the efficacy, safety, and long-term prognosis of intermediate-dose cytarabine (Ara-c) regimen in the treatment of children with refractory risk organ involvement Langerhans cell histiocytosis (LCH). Methods: Clinical data of 17 children with multisystem and risk organ involvement LCH who failed the first-line therapy and were treated with intermediate-dose Ara-c (250 mg/m2, twice daily) regimen in the Hematology Center, Beijing Children's Hospital from January 2013 to December 2016 were analyzed retrospectively. In addition to the basic treatment of vindesine and dexamethasone, the patients received two regimens: regimen A: the intermediate-dose Ara-c combined with cladribine and regimen B: the intermediate-dose Ara-c alone. The efficacy, safety and prognosis of the two regimens were analyzed. Results: Among all 17 patients, there were 11 males and 6 females, with the diagnosis age of 2.1 (1.6, 2.7) years. Ten children received regimen A, all of them achieved active disease-better (AD-B) after 8 courses of induction therapy. The disease activity scores (DAS) decreased from 5.5 (3.0, 9.0) to 1.0 (0, 2.3). Seven children received regimen B, and 6 of them achieved AD-B after 8 courses of induction therapy. The DAS decreased from 4.0 (2.0, 4.0) to 1.0 (0, 2.0). The follow-up time was 6.2 (4.9,7.2) and 5.2 (3.7,5.8) years in group A and B. The 5-year overall survival rate was 100.0% in both groups, and the 5-year event free survival rate was (88.9±10.5)% and (85.7±13.2)% in group A and B. Grade 3 or 4 myelosuppression was observed in 8 patients in group A and 2 patients in group B. Conclusions: The intermediate-dose Ara-c regimen (with or without cladribine) is effective and safe for patients with refractory high-risk LCH, with a good long-term prognosis.
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Affiliation(s)
- W Q Wang
- Hematology Center, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing Key Laboratory of Pediatric Hematology Oncology, National Key Discipline of Pediatrics, Key Laboratory of Major Diseases in Children, Ministry of Education, Beijing 100045, China
| | - J Ge
- Hematology Center, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing Key Laboratory of Pediatric Hematology Oncology, National Key Discipline of Pediatrics, Key Laboratory of Major Diseases in Children, Ministry of Education, Beijing 100045, China
| | - H H Ma
- Hematology Center, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing Key Laboratory of Pediatric Hematology Oncology, National Key Discipline of Pediatrics, Key Laboratory of Major Diseases in Children, Ministry of Education, Beijing 100045, China
| | - H Y Lian
- Hematology Center, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing Key Laboratory of Pediatric Hematology Oncology, National Key Discipline of Pediatrics, Key Laboratory of Major Diseases in Children, Ministry of Education, Beijing 100045, China
| | - L Cui
- Laboratory of Hematologic Diseases, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - L Zhang
- Hematology Center, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing Key Laboratory of Pediatric Hematology Oncology, National Key Discipline of Pediatrics, Key Laboratory of Major Diseases in Children, Ministry of Education, Beijing 100045, China
| | - Z G Li
- Laboratory of Hematologic Diseases, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - T Y Wang
- Hematology Center, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing Key Laboratory of Pediatric Hematology Oncology, National Key Discipline of Pediatrics, Key Laboratory of Major Diseases in Children, Ministry of Education, Beijing 100045, China
| | - R Zhang
- Hematology Center, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing Key Laboratory of Pediatric Hematology Oncology, National Key Discipline of Pediatrics, Key Laboratory of Major Diseases in Children, Ministry of Education, Beijing 100045, China
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Sun P, Wang C, Zhang M, Cui L, Dong Y. Ash problems and prevention measures in power plants burning high alkali fuel: Brief review and future perspectives. Sci Total Environ 2023; 901:165985. [PMID: 37536596 DOI: 10.1016/j.scitotenv.2023.165985] [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: 05/10/2023] [Revised: 07/18/2023] [Accepted: 07/31/2023] [Indexed: 08/05/2023]
Abstract
Large-scale utilization of high-alkali fuels is considered an effective solution for alleviating energy shortages and reducing CO2 emissions. However, combustion of high-alkali fuels in boilers releases alkali metals into the flue gas, which leads to severe ash deposition and corrosion on the heating surface. Consequently, research into the efficient use of highly alkaline fuels has been conducted in recent years. In this review, ash issues and measures for their prevention during high-alkali fuel combustion are summarized. First, the characteristics of fly ash produced from high-alkali fuel combustion are reviewed, and the form, migration, and deposition characteristics of alkali metals are summarized. Subsequently, research progress of high alkali fuel ash is introduced in detail. Mechanisms of slagging, fouling, corrosion on the heating surface and the selective catalytic reduction (SCR) unit deactivation are summarized. Prevention and control methods for the high-alkali fuel ash problem are then introduced. Finally, based on current research, existing problems and future development directions for high-alkali fuel research are proposed. Through this review, we hope to provide insights into the effective utilization of high-alkali fuels.
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Affiliation(s)
- Pengxiang Sun
- National Engineering Laboratory for Reducing Emissions from Coal Combustion, Shandong Key Laboratory of Energy Carbon Reduction and Resource Utilization, School of Energy and Power Engineering, Shandong University, Jinan, Shandong 250061, China
| | - Chenglong Wang
- National Engineering Laboratory for Reducing Emissions from Coal Combustion, Shandong Key Laboratory of Energy Carbon Reduction and Resource Utilization, School of Energy and Power Engineering, Shandong University, Jinan, Shandong 250061, China
| | - Miao Zhang
- Shandong provincial eco-environment monitoring center, Jinan, Shandong 250013, China
| | - Lin Cui
- National Engineering Laboratory for Reducing Emissions from Coal Combustion, Shandong Key Laboratory of Energy Carbon Reduction and Resource Utilization, School of Energy and Power Engineering, Shandong University, Jinan, Shandong 250061, China.
| | - Yong Dong
- National Engineering Laboratory for Reducing Emissions from Coal Combustion, Shandong Key Laboratory of Energy Carbon Reduction and Resource Utilization, School of Energy and Power Engineering, Shandong University, Jinan, Shandong 250061, China
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25
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Jiang G, Ma S, Zhao J, Zhang M, Li Y, Chen W, Cui L, Jia L. Assessing the efficacy and safety of Craniosacral therapy for migraine: A single center randomized controlled trial. Medicine (Baltimore) 2023; 102:e35431. [PMID: 37960717 PMCID: PMC10637508 DOI: 10.1097/md.0000000000035431] [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: 05/15/2023] [Accepted: 08/29/2023] [Indexed: 11/15/2023] Open
Abstract
OBJECTIVE Design a feasible study to assess the efficacy and safety of Craniosacral therapy (CST) in the treatment of migraine, using a rigorous and innovative randomized controlled study design involving complementary light-touch sham treatments (CLST) as an attention control intervention. METHODS This was a single-center, randomized, cross-over placebo-controlled experimental design. A total of 87 participants who suffered migraine attacks from 4 to 9 per month were randomly assigned into either 2 weekly units of CST or CLST for 4 weeks. And then the 2 groups were crossed and continued treatment for 4 weeks plus a follow-up observation for 4 weeks. As the primary outcome measures, Headache Impact Test-6 (HIT-6) and headache frequency were assessed every 4 weeks (at baseline, week 4, week 8 and week 12). The secondary outcome was the scores of Headache Disability inventory (HDI) and the Hamilton Anxiety Scale (HAMA) as well as the adverse events. RESULTS All 87 individuals had been screened for eligibility, of which 60 were licensed for the study. The difference of HIT-6 and headache frequency between the 2 groups was not significant at the baseline. But the headache frequency and HIT-6 of 2 groups were all declined respectively after the CST at week 4 (group A) and week 8 (group B) than before (P☆= 0.01 < 0.05, 95% CI, -3.06 to -1.87; P※= 0.01 < 0.05, 95% CI, -3.52 to -2.53; P1A = 0.01 < 0.05, 95% CI, 4.55-11.7; P2B = 0.01 < 0.05, 95% CI, -11.78 to -6.01) while the changes were not obvious after CLST with previous treatment. The scores and frequency of fourth evaluation showed that there was no significant increase or decrease in both the 2 groups. Besides, we found that the mean scores of HIT-6 for all participants, compared with the baseline, were decreased significantly after the 3 round treatments (P3A = 0.01 < 0.05, 95% CI, -13.12 to -6.4; P3B = 0.01 < 0.05, CI, -12.73 to -6.69). We also showed the similar result in the scores of HDI and HAMA. CONCLUSION The results indicated that standardized CST was both effective and safe in alleviating the migraine intensity and frequency as well as the headache-related disability. Further larger research is needed.
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Affiliation(s)
- Guangya Jiang
- Department of Neurology, Yellow River Central Hospital of Yellow River Conservancy Commission, Zhengzhou, China
| | - Saichao Ma
- Department of Rehabilitation, Yellow River Central Hospital of Yellow River Conservancy Commission, Zhengzhou, China
| | - Jinfeng Zhao
- The Department of Gerontology, Zhengzhou University Province People’s Hospital, Zhengzhou, China
| | - Ming Zhang
- Department of Health Management Center, Yellow River Central Hospital of Yellow River Conservancy Commission, Zhengzhou, China
| | - Yan Li
- Department of Health Management Center, Yellow River Central Hospital of Yellow River Conservancy Commission, Zhengzhou, China
| | - Wenli Chen
- Department of Rehabilitation, Yellow River Central Hospital of Yellow River Conservancy Commission, Zhengzhou, China
| | - Lin Cui
- Department of Neurological Intensive Medicine, Yellow River Central Hospital of Yellow River Conservancy Commission, Zhengzhou, China
| | - Liuyun Jia
- Department of Neurological Intensive Medicine, Yellow River Central Hospital of Yellow River Conservancy Commission, Zhengzhou, China
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Wang H, Qian Z, Cui L, Liu B, Zou J, Wang L, Tao Y, Zhang L, Jin L. False negative result of polymerase chain reaction in very early stages of acute retinal necrosis. J Ophthalmic Inflamm Infect 2023; 13:49. [PMID: 37940794 PMCID: PMC10632314 DOI: 10.1186/s12348-023-00366-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Accepted: 09/16/2023] [Indexed: 11/10/2023] Open
Abstract
BACKGROUND Viral nucleic acid testing of intraocular fluid using polymerase chain reaction (PCR) is a major laboratory examination in the diagnosis of acute retinal necrosis (ARN). Importantly, false negative PCR results may occur in several special situations. We reported a case of ARN with a negative PCR result in the aqueous humour in the very early stages of disease. CASE PRESENTATION A female patient presented to the ophthalmologist with complaints of blurred vision and redness in her left eye. Her medical history included ARN in her right eye 10 years prior. Although the result of the aqueous viral analysis by PCR in her left eye was negative the first time (one day after the appearance of ocular symptoms), ARN in her left eye was presumed based on the clinical signs. With timely antiviral and anti-inflammatory treatments, the retinal lesions diminished. The viral load of herpes simplex virus (HSV) turned positive (7.25 × 103 copies/mL) one week later, increased to 2.49 × 105 copies/mL after three weeks, and finally turned negative about five weeks after the onset of disease. The initial HSV-IgG level in the aqueous humour was 0.01 U/mL and increased to 222.64 U/mL in the final sampling. CONCLUSIONS The results of PCR analysis can be negative in the very early stages of ARN. Diagnosis of ARN should be made based on the clinical features, and antiviral treatments should not be delayed. Repeated PCR analysis of the aqueous humour is necessary to confirm the diagnosis and monitor the disease process.
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Affiliation(s)
- Haibo Wang
- Department of Ophthalmology, The Third People's Hospital of Dalian, Dalian Medical University, Zhongshan District, No. 110, Tianjin Road, Dalian, 116033, China
| | - Zhuyun Qian
- Beijing GIANTMED Medical Diagnostics Lab, Beijing, China
| | - Lin Cui
- Department of Ophthalmology, The Third People's Hospital of Dalian, Dalian Medical University, Zhongshan District, No. 110, Tianjin Road, Dalian, 116033, China
| | - Beichen Liu
- Department of Ophthalmology, The Third People's Hospital of Dalian, Dalian Medical University, Zhongshan District, No. 110, Tianjin Road, Dalian, 116033, China
| | - Jixin Zou
- Department of Ophthalmology, The Third People's Hospital of Dalian, Dalian Medical University, Zhongshan District, No. 110, Tianjin Road, Dalian, 116033, China
| | - Lu Wang
- Beijing GIANTMED Medical Diagnostics Lab, Beijing, China
| | - Yong Tao
- Department of Ophthalmology, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
| | - Lijun Zhang
- Department of Ophthalmology, The Third People's Hospital of Dalian, Dalian Medical University, Zhongshan District, No. 110, Tianjin Road, Dalian, 116033, China.
| | - Lei Jin
- Department of Ophthalmology, The Third People's Hospital of Dalian, Dalian Medical University, Zhongshan District, No. 110, Tianjin Road, Dalian, 116033, China.
- Department of Ophthalmology and Visual Sciences, University of Louisville School of Medicine, Louisville, USA.
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Kodama K, Tateishi C, Oda T, Cui L, Kuramoto K, Yahata H, Okugawa K, Maenohara S, Yagi H, Yasunaga M, Onoyama I, Asanoma K, Mori T, Katayama Y, Kato K. Development of novel tracers for sentinel node identification in cervical cancer. Cancer Sci 2023; 114:4216-4224. [PMID: 37648257 PMCID: PMC10637086 DOI: 10.1111/cas.15927] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2023] [Revised: 07/24/2023] [Accepted: 07/29/2023] [Indexed: 09/01/2023] Open
Abstract
Indocyanine green (ICG) with near-infrared (NIR) fluorescence imaging is used for lymphatic mapping. However, binding of ICG to blood proteins like serum albumin can shorten its retention time in sentinel lymph nodes (SLNs). Here, we investigated the efficacy and safety of a new fluorescence tracer comprising phytate and liposome (LP)-encapsulated ICG. Coadministration of phytate with LP containing phosphatidic acid promotes chelation mediated by Ca2+ in bodily fluids to enhance SLN retention. Uniformly sized LPs (100 nm) encapsulating ICG under conditions that minimized fluorescence self-quenching during storage were produced. We analyzed the behavior of the new tracer (ICG-phytate-LP) and control tracers (ICG and ICG-LP) in the lymphatic flow of mice in terms of lymph node retention time. We also tested lymphatic flow and safety in pigs that have a more human-like lymphatic system. LPs encapsulating stabilized ICG were successfully prepared. Mixing LP with phytate in the presence of Ca2+ increased both the particle size and negative surface charge. In mice, ICG-phytate-LP had the best lymph node retention, with a fluorescence intensity ratio that increased over 6 h and then decreased slowly over the next 24 h. In pigs, administration of ICG and ICG-phytate-LP resulted in no death or weight loss. There were no obvious differences between blood test results for the ICG and ICG-phytate-LP groups, and the overall safety was good. ICG-phytate-LP may be a useful new tracer for gynecological cancers that require time for lymph node identification due to a retroperitoneal approach.
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Affiliation(s)
- Keisuke Kodama
- Department of Obstetrics and GynecologyGraduate School of Medical Sciences, Kyushu UniversityFukuokaJapan
| | - Chuya Tateishi
- Department of Chemistry and BiochemistryGraduate School of Systems Life Sciences, Graduate School of Engineering, Kyushu UniversityFukuokaJapan
| | - Tsuyoshi Oda
- Department of Chemistry and BiochemistryGraduate School of Systems Life Sciences, Graduate School of Engineering, Kyushu UniversityFukuokaJapan
| | - Lin Cui
- Department of Obstetrics and GynecologyGraduate School of Medical Sciences, Kyushu UniversityFukuokaJapan
| | - Kazutaka Kuramoto
- Department of Obstetrics and GynecologyGraduate School of Medical Sciences, Kyushu UniversityFukuokaJapan
| | - Hideaki Yahata
- Department of Obstetrics and GynecologyGraduate School of Medical Sciences, Kyushu UniversityFukuokaJapan
| | - Kaoru Okugawa
- Department of Obstetrics and GynecologyGraduate School of Medical Sciences, Kyushu UniversityFukuokaJapan
| | - Shoji Maenohara
- Department of Obstetrics and GynecologyGraduate School of Medical Sciences, Kyushu UniversityFukuokaJapan
| | - Hiroshi Yagi
- Department of Obstetrics and GynecologyGraduate School of Medical Sciences, Kyushu UniversityFukuokaJapan
| | - Masafumi Yasunaga
- Department of Obstetrics and GynecologyGraduate School of Medical Sciences, Kyushu UniversityFukuokaJapan
| | - Ichiro Onoyama
- Department of Obstetrics and GynecologyGraduate School of Medical Sciences, Kyushu UniversityFukuokaJapan
| | - Kazuo Asanoma
- Department of Obstetrics and GynecologyGraduate School of Medical Sciences, Kyushu UniversityFukuokaJapan
| | - Takeshi Mori
- Department of Chemistry and BiochemistryGraduate School of Systems Life Sciences, Graduate School of Engineering, Kyushu UniversityFukuokaJapan
| | - Yoshiki Katayama
- Department of Chemistry and BiochemistryGraduate School of Systems Life Sciences, Graduate School of Engineering, Kyushu UniversityFukuokaJapan
- Department of Biomedical EngineeringChung Yuan Christian UniversityTaoyuan CityTaiwan
| | - Kiyoko Kato
- Department of Obstetrics and GynecologyGraduate School of Medical Sciences, Kyushu UniversityFukuokaJapan
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Dong J, Jiang Y, Li Z, Liu K, Guo L, Cui L, Wang H, Li J. Enterococcus faecium supplementation prevents enteritis caused by Escherichia coli in goats. Benef Microbes 2023; 14:477-491. [PMID: 38656096 DOI: 10.1163/18762891-20220133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Accepted: 06/07/2023] [Indexed: 04/26/2024]
Abstract
The probiotic Enterococcus faecium is a gut microbe with immunomodulatory effects, which has been widely used to prevent diarrhoea in pigs and birds. Escherichia coli is a common pathogen that causes inflammatory bowel disease in animals. The aim of this study was to investigate the protective effects of E. faecium on enteritis in goats. Forty goats were randomly divided into 4 treatment groups: control, E. faecium, E. coli, and E. faecium + E. coli. The changes of physiological indicators and diarrhoea scoring were evaluated on days -4, -2, 0, 2, 4, 6, and 8. The pathological examination, inflammatory cytokines mRNA expression and bacterial counts in jejunum and caecum were detected on day 4 and 8. The results showed that body temperature, respiratory rate, heart rate and leukocyte counts all increased from the 2nd to the 6th day after feeding with E. coli, and the diarrhoea score was significantly increased. However, E. faecium-pretreated goats had lower body temperatures and fewer leukocytes than E. coli-treated goats on day 2, as well as decreased diarrhoea scores. E. coli treatment caused histopathological damage and morphological changes in the jejunum and caecum, while pretreatment with E. faecium significantly alleviated these injuries. E. faecium pretreatment can reduce the load of E. coli and increase the prevalence of Lactobacillus, thereby balancing the microbiota in the intestine. Furthermore, E. coli-infected goats pretreated with E. faecium showed obvious inhibition of Toll-like receptor 4, interleukin (IL)-1β, IL-6, IL-8 and tumour necrosis factor-α mRNA expression in the jejunum and caecum compared to that in the E. coli treatment group. In conclusion, the addition of E. faecium to goat feed is beneficial for improving clinical symptoms, maintaining intestinal mucosa integrity, balancing the microbiota and decreasing inflammatory responses in E. coli-induced intestinal injury.
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Affiliation(s)
- J Dong
- College of Veterinary Medicine, Yangzhou University, Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, 225009 Yangzhou, China P.R
- Joint International Research Laboratory of Agriculture and Agri-Product Safety of the Ministry of Education, 225009 Yangzhou, China P.R
- Joint International Research Laboratory of Important Animal Infectious Diseases and Zoonoses of Jiangsu Higher Education Institutions, 225009 Yangzhou, China P.R
| | - Y Jiang
- Guangling College of Yangzhou University, 225009 Yangzhou, China P.R
- Medical College of Yangzhou University, 225009 Yangzhou, China P.R
| | - Z Li
- College of Veterinary Medicine, Yangzhou University, Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, 225009 Yangzhou, China P.R
- Joint International Research Laboratory of Agriculture and Agri-Product Safety of the Ministry of Education, 225009 Yangzhou, China P.R
- Joint International Research Laboratory of Important Animal Infectious Diseases and Zoonoses of Jiangsu Higher Education Institutions, 225009 Yangzhou, China P.R
| | - K Liu
- College of Veterinary Medicine, Yangzhou University, Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, 225009 Yangzhou, China P.R
- Joint International Research Laboratory of Agriculture and Agri-Product Safety of the Ministry of Education, 225009 Yangzhou, China P.R
- Joint International Research Laboratory of Important Animal Infectious Diseases and Zoonoses of Jiangsu Higher Education Institutions, 225009 Yangzhou, China P.R
| | - L Guo
- College of Veterinary Medicine, Yangzhou University, Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, 225009 Yangzhou, China P.R
- Joint International Research Laboratory of Agriculture and Agri-Product Safety of the Ministry of Education, 225009 Yangzhou, China P.R
- Joint International Research Laboratory of Important Animal Infectious Diseases and Zoonoses of Jiangsu Higher Education Institutions, 225009 Yangzhou, China P.R
| | - L Cui
- College of Veterinary Medicine, Yangzhou University, Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, 225009 Yangzhou, China P.R
- Joint International Research Laboratory of Agriculture and Agri-Product Safety of the Ministry of Education, 225009 Yangzhou, China P.R
- Joint International Research Laboratory of Important Animal Infectious Diseases and Zoonoses of Jiangsu Higher Education Institutions, 225009 Yangzhou, China P.R
| | - H Wang
- College of Veterinary Medicine, Yangzhou University, Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, 225009 Yangzhou, China P.R
- Joint International Research Laboratory of Agriculture and Agri-Product Safety of the Ministry of Education, 225009 Yangzhou, China P.R
- Joint International Research Laboratory of Important Animal Infectious Diseases and Zoonoses of Jiangsu Higher Education Institutions, 225009 Yangzhou, China P.R
| | - J Li
- College of Veterinary Medicine, Yangzhou University, Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, 225009 Yangzhou, China P.R
- Joint International Research Laboratory of Agriculture and Agri-Product Safety of the Ministry of Education, 225009 Yangzhou, China P.R
- Joint International Research Laboratory of Important Animal Infectious Diseases and Zoonoses of Jiangsu Higher Education Institutions, 225009 Yangzhou, China P.R
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Zhang AL, Tian L, Ding N, Cui L, Hu H, Ren MY, Qi PH, Shang YJ. [The value of a nomogram for predicting the outcome of intracerebral hemorrhage based on clinical characteristics and diffusion-weighted imaging of hyperintense lesions]. Zhonghua Nei Ke Za Zhi 2023; 62:1187-1193. [PMID: 37766437 DOI: 10.3760/cma.j.cn112138-20221229-00963] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Subscribe] [Scholar Register] [Indexed: 09/29/2023]
Abstract
Objective: To investigate the value of a nomogram predicting the outcome of intracerebral hemorrhage (ICH) based on clinical characteristics and diffusion-weighted imaging (DWI) of hyperintense lesions. Methods: A case-control study. Consecutive patients, aged 30-88(59±13) years old, with ICH were recruited at the Stroke Center of Zhengzhou People's Hospital from January 2018 to August 2021. Patients were divided into a group with DWI lesions and a group without DWI lesions depending on whether there were DWI hyperintense lesions distant from the hematoma. Prognosis was evaluated at 90 days via the modified Rankin Scale (mRS). Univariate and multivariable logistic regression models were used to identify independent predictors of a poor ICH outcome (mRS score≥4), and a nomogram model was developed. The performance of the nomogram was validated via the area under the receiver operating characteristic curve (AUC) and a calibration chart. Results: Of the 303 patients included in the study, 24.8% presented with DWI lesions; 17.5% with asymptomatic DWI lesions and 7.3% with symptomatic DWI lesions. Poor outcomes were significantly more frequent in the group with DWI lesions than in the group without DWI lesions (χ2=21.32, P<0.001). In multivariable regression analysis, age [odds ratio (OR)=1.032, 95% confidence interval (CI) 1.002-1.063, P=0.035], hematoma volume (OR=1.050, 95%CI 1.011-1.090, P=0.012), hematoma location (OR=3.839, 95%CI 1.248-11.805, P=0.019), DWI lesions (OR=3.955, 95%CI 1.906-8.206, P<0.001), and baseline NIHSS scores (OR=1.102, 95%CI 1.038-1.170, P=0.001) were independent predictors of a poor outcome. In subgroup analysis patients with asymptomatic DWI lesions had a 3-fold greater risk of a poor outcome compared to those without DWI lesions (OR=3.135, 95%CI 1.382-7.112, P=0.006), and patients with symptomatic DWI lesions had a 7-fold greater risk of a poor outcome compared to those without DWI lesions (OR=7.126, 95%CI 2.279-22.277, P=0.001). A nomogram model was established based on the independent predictors for a poor outcome. The AUC of the nomogram was 0.846 (95%CI 0.795-0.898), and a calibration chart indicated good consistency between values predicted by the nomogram and actual observed values. Conclusions: DWI lesions are an independent risk factor for a poor outcome in patients with ICH-particularly symptomatic DWI lesions. A nomogram model based on clinical characteristics and DWI lesions exhibited good efficacy when predicting the outcome of ICH.
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Affiliation(s)
- A L Zhang
- Department of Neurology, the Fifth Clinical Medical College of Henan University of Chinese Medicine (Zhengzhou People's Hospital), Zhengzhou 450003, China
| | - L Tian
- Department of Neurology, the Fifth Clinical Medical College of Henan University of Chinese Medicine (Zhengzhou People's Hospital), Zhengzhou 450003, China
| | - N Ding
- Department of Neurology, the Fifth Clinical Medical College of Henan University of Chinese Medicine (Zhengzhou People's Hospital), Zhengzhou 450003, China
| | - L Cui
- Department of Neurology, the Fifth Clinical Medical College of Henan University of Chinese Medicine (Zhengzhou People's Hospital), Zhengzhou 450003, China
| | - H Hu
- Department of Neurology, the Fifth Clinical Medical College of Henan University of Chinese Medicine (Zhengzhou People's Hospital), Zhengzhou 450003, China
| | - M Y Ren
- Department of Neurology, the Fifth Clinical Medical College of Henan University of Chinese Medicine (Zhengzhou People's Hospital), Zhengzhou 450003, China
| | - P H Qi
- Department of Imaging, the Fifth Clinical Medical College of Henan University of Chinese Medicine (Zhengzhou People's Hospital), Zhengzhou 450003, China
| | - Y J Shang
- Department of Imaging, the Fifth Clinical Medical College of Henan University of Chinese Medicine (Zhengzhou People's Hospital), Zhengzhou 450003, China
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Yang Y, Qin Y, Yang S, Liu T, Benassi E, Cui L, Liu Z, Guo X, Li Y. Simple and biodegradable mesoporous silica nanocarriers for enhancing antitumor therapy through photochemical synergism. J Biomater Appl 2023; 38:538-547. [PMID: 37957029 DOI: 10.1177/08853282231200711] [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: 11/21/2023]
Abstract
The biosafety and degradability of nanocarriers have always been an important factor restricting their entry into the clinic. In this work, a new nano-system was prepared by coating the photothermal effect of dopamine-doped mesoporous silica nanoparticles with carboxymethyl chitin through electrostatic interaction, and is further anchored with folic acid on the surface for targeted delivery of anti-cancer the drug doxorubicin (DOX). The nano-system (DOX@PDA/MSN-CMCS-FA) is simply modified CMCS after being loaded with DOX and has good dispersibility, and the drug loading is 10.6%. In vitro release studies have shown that the release rate of PDA/MSN-CMCS-FA is 40% in pH 5.5. Effective degradation is debris in 14 d acidic environments. Due to the anti-infrared photothermal effects of PDA doping and DOX chemotherapy, the semi-lethal concentration (IC50) of nanoparticles (NPS) was 14.95 μg/mL, which can inhibit tumor cell growth by photochemical synergistic treatment, and have certain degradation performance.
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Affiliation(s)
- Yiping Yang
- School of Chemistry and Chemical Engineering, Shihezi University/Key Laboratory of Green Process for Chemical Engineering/Key Laboratory for Chemical Materials of Xinjiang Uygur Autonomous Region/Engineering Center for Chemical Materials of Xinjiang Bingtuan, Shihezi University, Shihezi, China
| | - Yuchang Qin
- School of Chemistry and Chemical Engineering, Shihezi University/Key Laboratory of Green Process for Chemical Engineering/Key Laboratory for Chemical Materials of Xinjiang Uygur Autonomous Region/Engineering Center for Chemical Materials of Xinjiang Bingtuan, Shihezi University, Shihezi, China
| | - Shengchao Yang
- School of Chemistry and Chemical Engineering, Shihezi University/Key Laboratory of Green Process for Chemical Engineering/Key Laboratory for Chemical Materials of Xinjiang Uygur Autonomous Region/Engineering Center for Chemical Materials of Xinjiang Bingtuan, Shihezi University, Shihezi, China
| | - Tianyu Liu
- Department of Materials Science and Engineering, Monash University, Clayton, VIC, Australia
| | - Enrico Benassi
- School of Chemistry and Chemical Engineering, Shihezi University/Key Laboratory of Green Process for Chemical Engineering/Key Laboratory for Chemical Materials of Xinjiang Uygur Autonomous Region/Engineering Center for Chemical Materials of Xinjiang Bingtuan, Shihezi University, Shihezi, China
- Novosibirsk State University, Novosibirsk, Russia
| | - Lin Cui
- School of Chemistry and Chemical Engineering, Shihezi University/Key Laboratory of Green Process for Chemical Engineering/Key Laboratory for Chemical Materials of Xinjiang Uygur Autonomous Region/Engineering Center for Chemical Materials of Xinjiang Bingtuan, Shihezi University, Shihezi, China
| | - Zhiyong Liu
- School of Chemistry and Chemical Engineering, Shihezi University/Key Laboratory of Green Process for Chemical Engineering/Key Laboratory for Chemical Materials of Xinjiang Uygur Autonomous Region/Engineering Center for Chemical Materials of Xinjiang Bingtuan, Shihezi University, Shihezi, China
| | - Xuhong Guo
- School of Chemistry and Chemical Engineering, Shihezi University/Key Laboratory of Green Process for Chemical Engineering/Key Laboratory for Chemical Materials of Xinjiang Uygur Autonomous Region/Engineering Center for Chemical Materials of Xinjiang Bingtuan, Shihezi University, Shihezi, China
- State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai, China
| | - Yongsheng Li
- School of Chemistry and Chemical Engineering, Shihezi University/Key Laboratory of Green Process for Chemical Engineering/Key Laboratory for Chemical Materials of Xinjiang Uygur Autonomous Region/Engineering Center for Chemical Materials of Xinjiang Bingtuan, Shihezi University, Shihezi, China
- Lab of Low-Dimensional Materials Chemistry, Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, China
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Pan QX, Yang YC, Zhao NN, Zhang B, Cui L, Zhang CY. Development of a chiral electrochemical sensor based on copper-amino acid mercaptide nanorods for enantioselective discrimination of tryptophan enantiomers. Anal Chim Acta 2023; 1272:341480. [PMID: 37355327 DOI: 10.1016/j.aca.2023.341480] [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: 04/24/2023] [Revised: 06/02/2023] [Accepted: 06/03/2023] [Indexed: 06/26/2023]
Abstract
Chirality is an important property of nature and it regulates fundamental phenomena in nature and organisms. Here, we develop a chiral electrochemical sensor based on copper-amino acid mercaptide nanorods (L-CuCys NRs) to discriminate tryptophan (Trp) isomers. The chiral L-CuCys NRs are prepared in alkaline solution based on the facile coordination reaction between the sulfhydryl groups of L-Cys and copper ions. Since the stability constant (K) of L-CuCys NRs with L-Trp (752) are much higher than that of L-CuCys NRs with D-Trp (242), the cross-linking bonds between L-CuCys NRs and L-Trp are more stable than those between L-CuCys NRs and D-Trp. Consequently, this electrochemical sensor can selectively recognize the Trp isomers with an enantiomeric electrochemical difference ratio (IL-Trp/ID-Trp) of 3.22, and it exhibits a detection limit of 0.26 μM for L-Trp. Moreover, this electrochemical sensor can quantitatively measure Trp isomers in complex samples. Importantly, this electrochemical sensor has the characteristics of high stability, good repeatability, easy fabrication, low cost, and efficient discrimination of tryptophan (Trp) isomers.
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Affiliation(s)
- Qian-Xiu Pan
- College of Pharmacy, Department of Pathology, Weifang Medical University, Weifang, 261053, China
| | - Yun-Cong Yang
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan, 250014, China
| | - Ning-Ning Zhao
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan, 250014, China
| | - Baogang Zhang
- College of Pharmacy, Department of Pathology, Weifang Medical University, Weifang, 261053, China.
| | - Lin Cui
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan, 250014, China.
| | - Chun-Yang Zhang
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 211189, China.
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Xu W, Wang J, Cui L, Huang C, Xia N, Xie M, Liu D, Liao D. Il-1β Promotes Superficial Zone Cells Senescence in Articular Cartilage by Inhibiting Autophagy. Cartilage 2023:19476035231194771. [PMID: 37650417 DOI: 10.1177/19476035231194771] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 09/01/2023] Open
Abstract
OBJECTIVE The superficial zone cells in articular cartilage (SFZCs) have been identified as stem/progenitor chondrocytes and promoted cell self-renewal in the osteoarthritis (OA). Several studies emphasized the involvement of senescence and autophagy in OA. Interleukin-1β (IL-1β) is one of the main inflammatory mediators of OA, and whether it induces senescence and autophagy in SFZCs remains unclear. The present study aimed to investigate autophagy flux, mitochondrial function, and intracellular reactive oxygen species (ROS) that resulted in senescence in SFZCs induced by IL-1β. METHODS Using western blotting, reverse transcription-quantitative PCR, immunofluorescence, intracellular ROS detection, mitochondrial staining, and determination of mitochondrial membrane potential, we tested senescence and autophagy markers in SFZCs induced by IL-1β in vitro. The consequences of mitochondrial function and ROS were also studied with IL-1β-induced senescence. RESULTS IL-1β treatment decreased SFZC proliferation, induced SFZC senescence, and reduced SFZCs' chondrogenic differentiation capacity. Moreover, IL-1β impaired autophagy flux, and the autophagy activator, rapamycin, attenuated the senescence of SFZCs. IL-1β-induced autophagy defect resulted in mitochondrial dysfunction and overproduction of ROS, and autophagy activation notably protected against mitochondrial dysfunction and reduced the levels of ROS. Moreover, antioxidant N-acetylcysteine reversed the senescence of IL-1β in SFZCs. CONCLUSION IL-1β promotes autophagy impairment and subsequently results in dysfunctional mitochondria and overproduction of ROS, which finally causes SFZC senescence.
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Affiliation(s)
- Wei Xu
- Trauma Center, General Hospital of Western Theater Command, People's Liberation Army, Chengdu, China
| | - Juan Wang
- Department of Pain Treatment, General Hospital of Western Theater Command, People's Liberation Army, Chengdu, China
| | - Lin Cui
- Trauma Center, General Hospital of Western Theater Command, People's Liberation Army, Chengdu, China
| | - Chen Huang
- Trauma Center, General Hospital of Western Theater Command, People's Liberation Army, Chengdu, China
| | - Ning Xia
- Department of Orthopedics, General Hospital of Western Theater Command, People's Liberation Army, Chengdu, China
| | - Meiming Xie
- Trauma Center, General Hospital of Western Theater Command, People's Liberation Army, Chengdu, China
| | - Da Liu
- Department of Orthopedics, General Hospital of Western Theater Command, People's Liberation Army, Chengdu, China
| | - Dongfa Liao
- Trauma Center, General Hospital of Western Theater Command, People's Liberation Army, Chengdu, China
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Zhang X, Li R, Cui L, Liu D, Liu G, Zhang Z. Least squares reverse time migration imaging with illumination preconditioned based on improved PRP conjugate gradients. Sci Rep 2023; 13:13623. [PMID: 37604850 PMCID: PMC10442382 DOI: 10.1038/s41598-023-40578-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2023] [Accepted: 08/13/2023] [Indexed: 08/23/2023] Open
Abstract
Least squares reverse time migration (LSRTM) imaging is the one of the most accurate methods for migration imaging at present, and Polak-Ribiere-Polyak conjugate gradient (PRPCG) for LSRTM has the good numerical performance but weak convergence, so we construct an optimization factor to improve the iteration direction of the gradient, which can automatically generate a sufficient descent direction. The improved PRPCG (IPRPCG) can reduce the data residual values and speed up the iteration. And the illumination preconditioned (IP) operator is employed to IPRPCG-LSRTM which solves the problem of low resolution due to the insufficient iterative gradient information. In this paper, the experiments show that the imaging results of the proposed method (IPRPCG-IP-LSRTM) is improved greatly in detail characterization and events continuity, the iterative curve converged faster significantly, and the normalized data residual was reduced by 6.55% on average, which improved the accuracy of migration imaging effectively.
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Affiliation(s)
- Xiaodan Zhang
- School of Electronic Information, Xi'an Polytechnic University, Xi'an, 710060, China.
| | - Rui Li
- School of Electronic Information, Xi'an Polytechnic University, Xi'an, 710060, China
| | - Lin Cui
- School of Electronic Information, Xi'an Polytechnic University, Xi'an, 710060, China
| | - Dongxiao Liu
- School of Electronic Information, Xi'an Polytechnic University, Xi'an, 710060, China
| | - Guizhong Liu
- School of Information and Communications Engineering, Xi'an JiaoTong University, Xi'an, China
| | - Zhiyu Zhang
- School of Automation and Information Engineering, Xi'an University of Technology, Xi'an, China
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Pung R, Kong XP, Cui L, Chae SR, Chen MIC, Lee VJ, Ho ZJM. Severity of SARS-CoV-2 Omicron XBB subvariants in Singapore. Lancet Reg Health West Pac 2023; 37:100849. [PMID: 37554470 PMCID: PMC10405309 DOI: 10.1016/j.lanwpc.2023.100849] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Revised: 06/28/2023] [Accepted: 07/05/2023] [Indexed: 08/10/2023]
Abstract
Several XBB subvariants such as XBB.1.5, XBB.1.9, XBB.1.16 and XBB.2.3 co-circulate in Singapore. Despite the different viral properties of XBB.1.16 as compared to other XBB subvariants, comparison on their severity is limited. In this study, we investigate the outcomes of hospitalisation and severe COVID-19 infection in individuals infected with different XBB subvariants, adjusted for potential confounders such as age and vaccination history. Overall, our preliminary analysis showed that the risk of severe outcomes when infected with XBB.1.16 is higher than that of XBB.1.5 or XBB.1.9 but there is no difference in the risk of hospitalisation across different XBB subvariants.
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Affiliation(s)
- Rachael Pung
- Ministry of Health, Singapore
- Centre for the Mathematical Modelling of Infectious Diseases, London School of Hygiene and Tropical Medicine, United Kingdom
| | | | - Lin Cui
- National Centre for Infectious Diseases, Singapore
| | - Sae-Rom Chae
- Ministry of Health, Singapore
- National Centre for Infectious Diseases, Singapore
| | - Mark I-Cheng Chen
- Ministry of Health, Singapore
- National Centre for Infectious Diseases, Singapore
| | - Vernon J. Lee
- Ministry of Health, Singapore
- National Centre for Infectious Diseases, Singapore
- Saw Swee Hock School of Public Health, National University of Singapore, Singapore
| | - Zheng Jie Marc Ho
- Ministry of Health, Singapore
- Saw Swee Hock School of Public Health, National University of Singapore, Singapore
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Qi Y, Cui L, Zhang L, Yan C, Jiang Y, Ye S, Ji L, Qiu Y, Zhang L. Effect of repeated intravitreal anti-vascular endothelial growth factor drugs on corneal nerves. Medicine (Baltimore) 2023; 102:e34210. [PMID: 37478270 PMCID: PMC10662821 DOI: 10.1097/md.0000000000034210] [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: 12/26/2022] [Accepted: 06/14/2023] [Indexed: 07/23/2023] Open
Abstract
To investigate the potential effect of repeated intravitreal injection of anti-vascular endothelial growth factor (anti-VEGF) drugs on corneal nerves. A total of 64 patients were treated with intravitreal injection of anti-VEGF drugs. There were 19 cases of neovascular age-related macular degeneration (AMD), 20 cases of diabetic macular edema (DME) and 25 cases of retinal vein occlusion (RVO). Twenty-nine cases were treated with aflibercept (2 mg/0.05 mL) whereas 35 cases were managed with ranibizumab (0.5 mg/0.05 mL). A corneal confocal microscope was used to collect images of corneal subbasal nerve plexus, and Image J was used for image analysis. The changes in corneal nerve were compared between 1 month after each injection and before injection. There were no significant differences in the density and length of corneal nerve at specific time after the surgery in comparison with baseline in patients who were given 3 intravitreal injections. There was no significant correlation between the numbers of injections and the changes of the corneal nerves. After 3rd injection, the nerve length of the DME group was markedly lower than that of AMD and RVO groups, the difference was statistically significant (P < .05). The nerve density of the DME group was not significantly different from that of AMD and RVO groups, whereas the nerve length and nerve density of the AMD and RVO groups were not statistically significant between each other also. The corneal nerve length after the 2nd and 3rd injections of Aflibercept were lower than that before surgery, the difference was statistically significant. There were no significant differences in nerve density and nerve length at each time point after Ranibizumab injection. The length and density of the corneal nerve after multiple injections in contralateral eye displayed no significant changes compared with the baseline. Repeated intravitreal anti-VEGF drug can reduce the length of corneal nerves. For patients who need repeated intravitreal injections of anti-VEGF drugs, especially in DM, attention should be paid on the changes affecting the corneal nerves. It is also needed to strengthen the local anti-inflammatory therapy to avoid infection and to use artificial tears to protect the microenvironment of the ocular surface after the surgery.
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Affiliation(s)
- Yuanyuan Qi
- Department of Ophthalmology, the Third People’s Hospital Affiliated to Dalian Medical University, Dalian, China
- Key Laboratory of Corneal and Ocular Surface Diseases Research of Liaoning Province, Dalian, China
- Dalian Medical University, Dalian, China
| | - Lin Cui
- Department of Ophthalmology, the Third People’s Hospital Affiliated to Dalian Medical University, Dalian, China
- Key Laboratory of Corneal and Ocular Surface Diseases Research of Liaoning Province, Dalian, China
| | - Li Zhang
- Department of Ophthalmology, the Third People’s Hospital Affiliated to Dalian Medical University, Dalian, China
- Key Laboratory of Corneal and Ocular Surface Diseases Research of Liaoning Province, Dalian, China
| | - Chunxiao Yan
- Department of Ophthalmology, the Third People’s Hospital Affiliated to Dalian Medical University, Dalian, China
- Key Laboratory of Corneal and Ocular Surface Diseases Research of Liaoning Province, Dalian, China
| | - Yao Jiang
- Department of Ophthalmology, the Third People’s Hospital Affiliated to Dalian Medical University, Dalian, China
- Key Laboratory of Corneal and Ocular Surface Diseases Research of Liaoning Province, Dalian, China
| | - Shuang Ye
- Department of Ophthalmology, the Third People’s Hospital Affiliated to Dalian Medical University, Dalian, China
- Key Laboratory of Corneal and Ocular Surface Diseases Research of Liaoning Province, Dalian, China
| | - Lili Ji
- Department of Ophthalmology, the Third People’s Hospital Affiliated to Dalian Medical University, Dalian, China
- Key Laboratory of Corneal and Ocular Surface Diseases Research of Liaoning Province, Dalian, China
| | - Yuanyuan Qiu
- Department of Ophthalmology, the Third People’s Hospital Affiliated to Dalian Medical University, Dalian, China
- Key Laboratory of Corneal and Ocular Surface Diseases Research of Liaoning Province, Dalian, China
| | - Lijun Zhang
- Department of Ophthalmology, the Third People’s Hospital Affiliated to Dalian Medical University, Dalian, China
- Key Laboratory of Corneal and Ocular Surface Diseases Research of Liaoning Province, Dalian, China
- Dalian Medical University, Dalian, China
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Liu T, Cui L, He Z, Chen Z, Tao H, Yang J. Epidemiology and nomogram of pediatric and young adulthood osteosarcoma patients with synchronous lung metastasis: A SEER analysis. PLoS One 2023; 18:e0288492. [PMID: 37437020 DOI: 10.1371/journal.pone.0288492] [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: 05/23/2023] [Accepted: 06/28/2023] [Indexed: 07/14/2023] Open
Abstract
BACKGROUND Patients with osteosarcoma and synchronous lung metastasis (SLM) have poor survival. This study aimed to explore the epidemiology data and construct a predictive nomogram to identify cases at risk of SLM occurrence among pediatric and young adulthood osteosarcoma patients. METHODS All data were extracted from Surveillance, Epidemiology, and End Results 17 registries. The age-standardized incidence rate (ASIR) and annual percentage change was evaluated, and reported for the overall population and by age, gender, race, and primary site. Univariate and multivariate logistic regression analyses were used to identify risk factors associated with SLM occurrence, then significant factors were used to develop the nomogram. The area under the receiver operating characteristic curve (AUC) and calibration curve were used to evaluated the predictive power of the nomogram. Survival analysis was assessed by the Kaplan-Meier method and the log-rank test. Multivariate Cox analysis was used to determine the prognostic factors. RESULTS A total of 278 out of 1965 patients (14.1%) presented with SLM at diagnosis. The ASIR increased significant from 0.46 to 0.66 per 1,000,000 person-years from year 2010 to 2019, with an annual percentage change of 3.5, mainly in patients with age 10-19 years, male and appendicular location. All patients were randomly assigned into train cohort and validation cohort with a spilt of 7:3. In the train cohort, higher tumor grade, bigger tumor size, positive lymph nodes and other site-specific metastases (SSM) were identified as significant risk factors associated with SLM occurrence. Then a nomogram was developed based on the four factors. The AUC and calibration curve in both train and validation cohorts demonstrated that the nomogram had moderate predictive power. The median cancer-specific survival was 25 months. Patients with age 20-39 years, male, positive lymph nodes, other SSM were adverse prognostic factors, while surgery was protective factor. CONCLUSIONS This study performed a comprehensive analysis regarding pediatric and young adulthood osteosarcoma patients had SLM. A visual, clinically operable, and easy-to-interpret nomogram model was developed for predicting the risk of SLM, which could be used in clinic and help clinicians make better decisions.
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Affiliation(s)
- Tao Liu
- Department of Hand and Foot Surgery, Yiwu Central Hospital, Yiwu, China
| | - Lin Cui
- Emergency Department, The 941st Hospital of the PLA Joint Logistic Support Force, Xining, China
| | - Zongyun He
- Department of Hand and Foot Surgery, Yiwu Central Hospital, Yiwu, China
| | - Zhe Chen
- Department of Hand and Foot Surgery, Yiwu Central Hospital, Yiwu, China
| | - Haibing Tao
- Department of Hand and Foot Surgery, Yiwu Central Hospital, Yiwu, China
| | - Jin Yang
- Department of Hand and Foot Surgery, Yiwu Central Hospital, Yiwu, China
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Ren HH, Cheng Y, Wu F, Gu ZL, Cao JJ, Huang Y, Xue YG, Cui L, Zhang YW, Chow JC, Watson JG, Zhang RJ, Lee SC, Wang YL, Liu S. Spatiotemporal characteristics of ozone and the formation sensitivity over the Fenwei Plain. Sci Total Environ 2023; 881:163369. [PMID: 37030366 DOI: 10.1016/j.scitotenv.2023.163369] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 03/29/2023] [Accepted: 04/04/2023] [Indexed: 06/01/2023]
Abstract
High surface ozone (O3) levels affect human and environmental health. The Fenwei Plain (FWP), one of the critical regions for China's "Blue Sky Protection Campaign", has reported severe O3 pollution. This study investigates the spatiotemporal properties and the causes of O3 pollution over the FWP using high-resolution data from the TROPOspheric Monitoring Instrument (TROPOMI) from 2019 to 2021. This study characterizes spatial and temporal variations in O3 concentration by linking O3 columns and surface monitoring using a trained deep forest machine learning model. O3 concentrations in summer were 2-3 times higher than those found in winter due to higher temperatures and greater solar irradiation. The spatial distributions of O3 correlate with the solar radiation showing decreased trends from the northeastern to the southwestern FWP, with the highest O3 values in Shanxi Province and the lowest in Shaanxi Province. For urban areas, croplands and grasslands, the O3 photochemistry in summer is NOx-limited or in the transitional regime, while it is VOC-limited in winter and other seasons. Reducing NOx emissions would be effective for decreasing O3 levels in summer, while VOC reductions are necessary for winter. The annual cycle in vegetated areas included both NOx-limited and transitional regimes, indicating the importance of NOx controls to protect ecosystems. The O3 response to limiting precursors shown here is of importance for optimizing control strategies and is illustrated by emission changes during the 2020 COVID-19 outbreak.
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Affiliation(s)
- H H Ren
- School of Human Settlements and Civil Engineering, Xi'an Jiaotong University, Xi'an 710049, Shaanxi, China
| | - Y Cheng
- School of Human Settlements and Civil Engineering, Xi'an Jiaotong University, Xi'an 710049, Shaanxi, China; Key Laboratory of Aerosol Chemistry & Physics and State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Science, Xi'an, China.
| | - F Wu
- Key Laboratory of Aerosol Chemistry & Physics and State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Science, Xi'an, China
| | - Z L Gu
- School of Human Settlements and Civil Engineering, Xi'an Jiaotong University, Xi'an 710049, Shaanxi, China
| | - J J Cao
- Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China
| | - Y Huang
- Key Laboratory of Aerosol Chemistry & Physics and State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Science, Xi'an, China
| | - Y G Xue
- Key Laboratory of Aerosol Chemistry & Physics and State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Science, Xi'an, China
| | - L Cui
- Key Laboratory of Aerosol Chemistry & Physics and State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Science, Xi'an, China
| | - Y W Zhang
- School of Human Settlements and Civil Engineering, Xi'an Jiaotong University, Xi'an 710049, Shaanxi, China
| | - J C Chow
- Division of Atmospheric Sciences, Desert Research Institute, Reno, NV, USA
| | - J G Watson
- Division of Atmospheric Sciences, Desert Research Institute, Reno, NV, USA
| | - R J Zhang
- Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China
| | - S C Lee
- Department of Civil and Environmental Engineering, Research Center for Environmental Technology and Management, The Hong Kong Polytechnic University, Kowloon, Hong Kong, China
| | - Y L Wang
- School of Human Settlements and Civil Engineering, Xi'an Jiaotong University, Xi'an 710049, Shaanxi, China
| | - S Liu
- School of Human Settlements and Civil Engineering, Xi'an Jiaotong University, Xi'an 710049, Shaanxi, China; Qingyang Eco-Environment Bureau of Chengdu, Chengdu, Sichuan, China
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Pan QX, Zhu CY, Dong J, Zhang B, Cui L, Zhang CY. Integration of a copper-based metal-organic framework with an ionic liquid for electrochemically discriminating cysteine enantiomers. Analyst 2023. [PMID: 37401671 DOI: 10.1039/d3an00793f] [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: 07/05/2023]
Abstract
The identification of cysteine enantiomers is of great significance in the biopharmaceutical industry and medical diagnostics. Herein, we develop an electrochemical sensor to discriminate cysteine (Cys) enantiomers based on the integration of a copper metal-organic framework (Cu-MOF) with an ionic liquid. Because the combine energy of D-cysteine (D-Cys) with Cu-MOF (-9.905 eV) is lower than that of L-cysteine (L-Cys) with Cu-MOF (-9.694 eV), the decrease in the peak current of the Cu-MOF/GCE induced by D-Cys is slightly higher than that induced by L-Cys in the absence of an ionic liquid. In contrast, the combine energy of L-Cys with an ionic liquid (-1.084 eV) is lower than that of D-Cys with an ionic liquid (-1.052 eV), and the ionic liquid is easier to cross-link with L-Cys than with D-Cys. When an ionic liquid is present, the decrease in the peak current of the Cu-MOF/GCE induced by D-Cys is much higher than that induced by L-Cys. Consequently, this electrochemical sensor can efficiently discriminate D-Cys from L-Cys, and it can sensitively detect D-Cys with a detection limit of 0.38 nM. Moreover, this electrochemical sensor exhibits good selectivity, and it can accurately measure the spiked D-Cys in human serum with a recovery ratio of 100.2-102.6%, with wide applications in biomedical research and drug discovery.
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Affiliation(s)
- Qian-Xiu Pan
- College of Pharmacy, Department of Pathology, Weifang Medical University, Weifang 261053, China.
| | - Chen-Yu Zhu
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan 250014, China.
| | - Jie Dong
- College of Pharmacy, Department of Pathology, Weifang Medical University, Weifang 261053, China.
| | - Baogang Zhang
- College of Pharmacy, Department of Pathology, Weifang Medical University, Weifang 261053, China.
| | - Lin Cui
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan 250014, China.
| | - Chun-Yang Zhang
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China.
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Liu Y, Cui L, Wang X, Miao W, Ju Y, Chen T, Xu H, Gu N, Yang F. In Situ Nitric Oxide Gas Nanogenerator Reprograms Glioma Immunosuppressive Microenvironment. Adv Sci (Weinh) 2023; 10:e2300679. [PMID: 37085663 PMCID: PMC10288280 DOI: 10.1002/advs.202300679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 04/06/2023] [Indexed: 05/03/2023]
Abstract
Universal chemotherapy in glioblastoma patients causes chemoresistance and further limits immune cells by creating an immunosuppressive tumor microenvironment that are difficult to solve by single-drug therapeutic approaches. Here, this work designs hybrid drug-loaded nanoliposomes by co-loading the chemotherapeutic drug temozolomide (TMZ) and nitric oxide (NO) prodrug JS-K with sphingosine-1-phosphate molecules (S1P) on the surface. The S1P-S1P receptors axis endows nanoliposomes with rapid targeting and lysosomal escaping capability. Then, fine-tuned TMZ release and NO gas production following JS-K release in glioma microenvironment decrease chemoresistance and increase tumor immunogenicity through inhibiting the cellular autophagy as well as inducing mitochondrial dysfunction. RNA sequencing analysis demonstrates that the NO gas generation reprograms glioma microenvironment immune and inflammation-related pathways. The positive immune response in turn effectively activates the enhanced efficacy of chemotherapy. NO gas generated nanoliposomes thus have attractive paradigm-shifting applications in the treatment of "cold" tumors across a range of immunosuppressive indications.
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Affiliation(s)
- Yang Liu
- State Key Laboratory of BioelectronicsJiangsu Key Laboratory for Biomaterials and DevicesSchool of Biological Sciences and Medical EngineeringSoutheast UniversityNanjing210096P. R. China
| | - Lin Cui
- State Key Laboratory of BioelectronicsJiangsu Key Laboratory for Biomaterials and DevicesSchool of Biological Sciences and Medical EngineeringSoutheast UniversityNanjing210096P. R. China
| | - Xiao Wang
- State Key Laboratory of BioelectronicsJiangsu Key Laboratory for Biomaterials and DevicesSchool of Biological Sciences and Medical EngineeringSoutheast UniversityNanjing210096P. R. China
| | - Weiling Miao
- State Key Laboratory of BioelectronicsJiangsu Key Laboratory for Biomaterials and DevicesSchool of Biological Sciences and Medical EngineeringSoutheast UniversityNanjing210096P. R. China
| | - Yongxu Ju
- State Key Laboratory of BioelectronicsJiangsu Key Laboratory for Biomaterials and DevicesSchool of Biological Sciences and Medical EngineeringSoutheast UniversityNanjing210096P. R. China
| | - Tiandong Chen
- State Key Laboratory of BioelectronicsJiangsu Key Laboratory for Biomaterials and DevicesSchool of Biological Sciences and Medical EngineeringSoutheast UniversityNanjing210096P. R. China
| | - Huiting Xu
- State Key Laboratory of BioelectronicsJiangsu Key Laboratory for Biomaterials and DevicesSchool of Biological Sciences and Medical EngineeringSoutheast UniversityNanjing210096P. R. China
| | - Ning Gu
- State Key Laboratory of BioelectronicsJiangsu Key Laboratory for Biomaterials and DevicesSchool of Biological Sciences and Medical EngineeringSoutheast UniversityNanjing210096P. R. China
| | - Fang Yang
- State Key Laboratory of BioelectronicsJiangsu Key Laboratory for Biomaterials and DevicesSchool of Biological Sciences and Medical EngineeringSoutheast UniversityNanjing210096P. R. China
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Zeng Z, Cui L, Qian M, Zhang Z, Wei K. A survey on sliding window sketch for network measurement. Computer Networks 2023; 226:109696. [DOI: 10.1016/j.comnet.2023.109696] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/04/2023]
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Du Z, Qu L, Liang Z, Huang K, Cui L, Gao Z. IMF: Interpretable Multi-Hop Forecasting on Temporal Knowledge Graphs. Entropy (Basel) 2023; 25:e25040666. [PMID: 37190454 PMCID: PMC10137376 DOI: 10.3390/e25040666] [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: 02/20/2023] [Revised: 03/26/2023] [Accepted: 04/08/2023] [Indexed: 05/17/2023]
Abstract
Temporal knowledge graphs (KGs) have recently attracted increasing attention. The temporal KG forecasting task, which plays a crucial role in such applications as event prediction, predicts future links based on historical facts. However, current studies pay scant attention to the following two aspects. First, the interpretability of current models is manifested in providing reasoning paths, which is an essential property of path-based models. However, the comparison of reasoning paths in these models is operated in a black-box fashion. Moreover, contemporary models utilize separate networks to evaluate paths at different hops. Although the network for each hop has the same architecture, each network achieves different parameters for better performance. Different parameters cause identical semantics to have different scores, so models cannot measure identical semantics at different hops equally. Inspired by the observation that reasoning based on multi-hop paths is akin to answering questions step by step, this paper designs an Interpretable Multi-Hop Reasoning (IMR) framework based on consistent basic models for temporal KG forecasting. IMR transforms reasoning based on path searching into stepwise question answering. In addition, IMR develops three indicators according to the characteristics of temporal KGs and reasoning paths: the question matching degree, answer completion level, and path confidence. IMR can uniformly integrate paths of different hops according to the same criteria; IMR can provide the reasoning paths similarly to other interpretable models and further explain the basis for path comparison. We instantiate the framework based on common embedding models such as TransE, RotatE, and ComplEx. While being more explainable, these instantiated models achieve state-of-the-art performance against previous models on four baseline datasets.
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Affiliation(s)
- Zhenyu Du
- College of Electronic Engineering, National University of Defense Technology, Hefei 230037, China
| | - Lingzhi Qu
- College of Electronic Engineering, National University of Defense Technology, Hefei 230037, China
| | - Zongwei Liang
- College of Electronic Engineering, National University of Defense Technology, Hefei 230037, China
| | - Keju Huang
- College of Electronic Engineering, National University of Defense Technology, Hefei 230037, China
| | - Lin Cui
- College of Electronic Engineering, National University of Defense Technology, Hefei 230037, China
| | - Zhiyang Gao
- College of Electronic Engineering, National University of Defense Technology, Hefei 230037, China
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Wang TT, Cao QY, Zhang ZP, Guo YB, Cui L, Zhang Y, Zhang Y, Wang MP, Jiang L. [The predictive value of warning scores for intensive care unit admission in coronavirus disease 2019 patients]. Zhonghua Nei Ke Za Zhi 2023; 62:433-437. [PMID: 37032140 DOI: 10.3760/cma.j.cn112138-20220414-00277] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Subscribe] [Scholar Register] [Indexed: 04/11/2023]
Abstract
To evaluate the predictive value of early warning scores for intensive care unit (ICU) admission in patients with coronavirus disease 2019 (COVID-19). For COVID-19 patients who were admitted to Shijiazhuang People's Hospital from January 2021 to February 2021, national early warning score (NEWS), national early warning score 2 (NEWS2), rapid emergency medicine score (REMS), quick sepsis-related organ failure (qSOFA), altered consciousness, blood urea nitrogen, respiratory rate, blood pressure, and age-65 (CURB-65) were used to evaluate the inpatient condition and the predictive value for ICU admission. A total of 368 patients were included, and 32 patients (8.7%) were transferred to the ICU. The median age was 49.0 (34.0,61.0) years. The scores of NEWS, NEWS2, REMS, and CURB-65 were 1 (0, 2), 1 (0, 2), 4 (2, 6) and 0 (0, 1), respectively. The receiver operating characteristic (ROC) cure (AUC) was used to evaluate the predictive value in detecting patients who are at risk of being transferred to the ICU. Area under the ROC AUC of NEWS was 0.756, sensitivity 65.6%, and specificity 71.3%. ROC AUC of NEWS2 was 0.732, sensitivity 62.5%, and specificity 61.3%. ROC AUC of REMS was 0.787, sensitivity 84.4%, and specificity 64.6%. ROC AUC of CURB-65 was 0.814, sensitivity 81.3%, and specificity 76.8%. The predictive value of NEWS and NEWS2 combined with age were significantly improved. The ROC AUC of NEWS combined with age was 0.885, sensitivity 85.1%, and specificity 75.0%. The ROC AUC of NEWS2 combined with age was 0.883, sensitivity 84.2%, and specificity 75.0%. NEWS and NEWS2 combined with age can be used as a predictive tool for whether COVID-19 patients will be admitted to the ICU.
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Affiliation(s)
- T T Wang
- Department of Critical Care Medicine, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
| | - Q Y Cao
- Shijiazhuang People's Hospital, Shijiazhuang 050051, China
| | - Z P Zhang
- Shijiazhuang People's Hospital, Shijiazhuang 050051, China
| | - Y B Guo
- Department of Urology, Shijiazhuang People's Hospital, Shijiazhuang 050051, China
| | - L Cui
- Department of Geriatrics, Shijiazhuang People's Hospital, Shijiazhuang 050051, China
| | - Y Zhang
- Shijiazhuang People's Hospital, Shijiazhuang 050051, China
| | - Y Zhang
- Department of Endocrinology and Metabolism, West China Hospital, Sichuan University, Chengdu 610041, China
| | - M P Wang
- Department of Critical Care Medicine, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
| | - L Jiang
- Department of Critical Care Medicine, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
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Ng OT, Koh V, Chiew CJ, Marimuthu K, Thevasagayam NM, Mak TM, Chua JK, Hui Ong SS, Lim YK, Ferdous Z, Khairunnisa Bte Johari A, I-Cheng Chen M, Maurer-Stroh S, Cui L, Pin Lin RT, Tan KB, Cook AR, Leo PYS, Lee PVJM. Erratum to "Impact of delta variant and vaccination on SARS-CoV-2 secondary attack rate among household close contacts" [The Lancet Regional Health - Western Pacific 17 (2021) 100299]. Lancet Reg Health West Pac 2023; 33:100748. [PMID: 36945675 PMCID: PMC10022472 DOI: 10.1016/j.lanwpc.2023.100748] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/19/2023]
Abstract
[This corrects the article DOI: 10.1016/j.lanwpc.2021.100299.].
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Affiliation(s)
- Oon Tek Ng
- National Centre for Infectious Diseases, Singapore
- Tan Tock Seng Hospital, Singapore
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore
| | - Vanessa Koh
- National Centre for Infectious Diseases, Singapore
- Tan Tock Seng Hospital, Singapore
| | - Calvin J Chiew
- Communicable Diseases Division, Ministry of Health, Singapore
| | - Kalisvar Marimuthu
- National Centre for Infectious Diseases, Singapore
- Tan Tock Seng Hospital, Singapore
- Yong Loo Lin School of Medicine, National University of Singapore and National University Health System, Singapore
| | | | - Tze Minn Mak
- National Centre for Infectious Diseases, Singapore
| | | | | | | | - Zannatul Ferdous
- National Centre for Infectious Diseases, Singapore
- Tan Tock Seng Hospital, Singapore
| | | | - Mark I-Cheng Chen
- National Centre for Infectious Diseases, Singapore
- Communicable Diseases Division, Ministry of Health, Singapore
- Saw Swee Hock School of Public Health, National University of Singapore and National University Health System, Singapore
| | - Sebastian Maurer-Stroh
- National Centre for Infectious Diseases, Singapore
- Bioinformatics Institute, Agency for Science Technology and Research, Singapore
- Infectious Diseases Labs, Agency for Science Technology and Research, Singapore
- Department of Biological Sciences, National University of Singapore, Singapore
| | - Lin Cui
- National Centre for Infectious Diseases, Singapore
| | - Raymond Tzer Pin Lin
- National Centre for Infectious Diseases, Singapore
- Yong Loo Lin School of Medicine, National University of Singapore and National University Health System, Singapore
| | - Kelvin Bryan Tan
- Ministry of Health, Singapore
- Saw Swee Hock School of Public Health, National University of Singapore and National University Health System, Singapore
- Centre for Regulatory Excellence, Duke-NUS Medical School
| | - Alex R Cook
- Saw Swee Hock School of Public Health, National University of Singapore and National University Health System, Singapore
| | - Prof Yee-Sin Leo
- National Centre for Infectious Diseases, Singapore
- Tan Tock Seng Hospital, Singapore
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore
- Yong Loo Lin School of Medicine, National University of Singapore and National University Health System, Singapore
- Saw Swee Hock School of Public Health, National University of Singapore and National University Health System, Singapore
| | - Prof Vernon J M Lee
- Communicable Diseases Division, Ministry of Health, Singapore
- Saw Swee Hock School of Public Health, National University of Singapore and National University Health System, Singapore
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Zhang J, Pan Y, Feng D, Cui L, Zhao S, Hu J, Wang S, Qin Y. Mechanistic Insight into the Synergy between Platinum Single Atom and Cluster Dual Active Sites Boosting Photocatalytic Hydrogen Evolution. Adv Mater 2023:e2300902. [PMID: 36977472 DOI: 10.1002/adma.202300902] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 03/06/2023] [Indexed: 06/18/2023]
Abstract
In the energy transition context, the design and synthesis of high-performance Pt-based photocatalysts with low Pt content and ultrahigh atom-utilization efficiency for hydrogen production are essential. Herein, a facile approach for decorating atomically dispersed Pt cocatalysts having single-atom (SA) and atomic cluster (C) dual active sites on CdS nanorods (PtSA+C /CdS) via atomic layer deposition is reported. The size of the cocatalyst and the spatial intimacy of the cocatalyst active sites are precisely engineered at the atomic scale. The PtSA+C /CdS photocatalysts show the optimized photocatalytic hydrogen evolution activity, achieving a reaction rate of 80.4 mmol h-1 g-1 , which is 1.6- and 7.3-fold higher than those of the PtSA /CdS and PtNP /CdS photocatalysts, respectively. Thorough characterization and theoretical calculations reveal that the enhanced photocatalytic activity is due to a remarkable synergy between SAs and atomic clusters as dual active sites, which are responsible for water adsorption-dissociation and hydrogen desorption, respectively. A similar synergetic effect is found in a representative Pt/TiO2 system, indicating the generality of the strategy. This study demonstrates the significance of the synergy between active sites for enhancing the reaction efficiency, opening a new avenue for the rational design of atomically dispersed photocatalysts with high efficiency.
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Affiliation(s)
- Jiankang Zhang
- Interdisciplinary Research Center of Biology & Catalysis, School of Life Sciences, Northwestern Polytechnical University, Xi'an, 710072, P. R. China
| | - Yukun Pan
- College of Chemical Engineering, Xiangtan University, Xiangtan, 411105, P. R. China
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan, 030001, P. R. China
| | - Dan Feng
- Analytical & Testing Center, Northwestern Polytechnical University, Xi'an, 710072, P. R. China
| | - Lin Cui
- Interdisciplinary Research Center of Biology & Catalysis, School of Life Sciences, Northwestern Polytechnical University, Xi'an, 710072, P. R. China
| | - Shichao Zhao
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan, 030001, P. R. China
| | - Jinlong Hu
- Key Laboratory of Renewable Energy, Guangdong Key Laboratory of New and Renewable Energy Research and Development, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou, 510640, P. R. China
| | - Sen Wang
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan, 030001, P. R. China
| | - Yong Qin
- Interdisciplinary Research Center of Biology & Catalysis, School of Life Sciences, Northwestern Polytechnical University, Xi'an, 710072, P. R. China
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan, 030001, P. R. China
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Ji MH, Zhang X, Han X, Wang X, Cui L. [Effect of adjunctive drug therapy on early expulsion of distal ureteral calculi after extracorporeal shock wave lithotripsy]. Zhonghua Yi Xue Za Zhi 2023; 103:924-926. [PMID: 36973221 DOI: 10.3760/cma.j.cn112137-20221201-02545] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 03/29/2023]
Abstract
Objective: To evaluate the efficacy of ketochromate tromethamine and phloroglucinol combination therapy in early expulsion of ureteral calculi after extracorporeal shockwave lithotripsy (ESWL) in patients with distal ureteral clculi. The clinical and follow-up data of 275 patients with lower ureteral calculi who underwent ESWL were collected retrospectively in Civil Aviation General Hospital from January 1st 2021 to June 30th 2021. According to whether adjunctive medication used before ESWL patients were divided into control group and medication group (with ketochromate tromethamine 30 mg and phloroglucinol 80 mg before ESWL). Primary endpoint is the clearance rate of ureteral calculi after ESWL, secondary endpoint are the other outcomes and drug allergy. There were 138 cases in control group [117 were males and mean age (42±13) years]. Meanwhile, there were 137 cases in medication group [118 were males and mean age (42±12) years]. The clearance rate of ureteral calculi at 24 h (67.88% vs 48.55%, P=0.001)、one week (76.64% vs 57.97%, P=0.001) and four weeks (89.05% vs 76.08%, P=0.005)after ESWL in medication group were significant higher than that in control group. There was a significant difference in the VAS score of pain scale after ESWL (1.77±0.80 vs 2.06±1.04, P=0.012) and re-ESWL rate (8.03% vs 17.39%,P=0.02) between two groups, but no difference with gross hematuria in 6 h after ESWL and drug allergy. Conclusions combination use of ketochromate tromethamine and phloroglucinol significantly improve early expulsion of ureteral calculi after ESWL in patients with distal ureteral calculi, with no side effect.
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Affiliation(s)
- M H Ji
- Deparment of Urology Surgery, Civil Aviation General Hospital, Beijing 100123, China
| | - X Zhang
- Deparment of Urology Surgery, Civil Aviation General Hospital, Beijing 100123, China
| | - X Han
- Deparment of Urology Surgery, Civil Aviation General Hospital, Beijing 100123, China
| | - X Wang
- Department of Dermatology, Beijing Ningshe Medical Beauty Clinic, Beijing 100027, China
| | - L Cui
- Deparment of Urology Surgery, Civil Aviation General Hospital, Beijing 100123, China
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Zuo M, Cui L, Wang S, Wei W, Gao W, Zhang CY. Development of an exogenous coreactant-free electrochemiluminescent sensor for sensing glucose. Analyst 2023; 148:1764-1769. [PMID: 36951236 DOI: 10.1039/d3an00266g] [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: 03/12/2023]
Abstract
Covalent organic frameworks (COFs) are crystalline porous polymers with the characteristics of a large specific surface area, controllable pore structures, high stability, and low mass density. Herein, we demonstrate the development of an exogenous coreactant-free electrochemiluminescent sensor based on a hydrazone-linked COF for sensing glucose. We synthesized a TFPPy-DMeTHz-COF with the hydrazone bond as the linkage and 2,5-dimethoxyterephthalohydrazide (DMeTHz) and 1,3,6,8-tetrakis(4-formylphenyl)pyrene (TFPPy) as the monomers. The obtained TFPPy-DMeTHz-COF exhibits high electrochemiluminescence (ECL) efficiency (21.7%) without either the addition of any coreactants or the removal of dissolved O2, and the ECL signal intensity of the TFPPy-DMeTHz-COF is 6.6 and 113-fold higher than those of TFPPy and DMeTHz, respectively. The enhanced ECL emission of the TFPPy-DMeTHz-COF is induced by OH- in PBS, and the ECL signal exhibits linear dependence on the pH value in the range from 3 to 10. When glucose is present, the addition of glucose oxidase (GOx) to the O2-containing solution generates gluconic acid, and the resultant gluconic acid can induce the decrease of the pH value and the quenching of the ECL emission of the TFPPy-DMeTHz-COF. This exogenous coreactant-free electrochemiluminescent sensor exhibits good selectivity, excellent stability, and high sensitivity with a limit of detection (LOD) of 0.031 μM, and it can accurately detect glucose in human serum.
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Affiliation(s)
- Maoding Zuo
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan 250014, China.
| | - Lin Cui
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan 250014, China.
| | - Shuangwen Wang
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan 250014, China.
| | - Wengui Wei
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan 250014, China.
| | - Wenqiang Gao
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P.R. China.
| | - Chun-Yang Zhang
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan 250014, China.
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Xia N, Cai Y, Kan Q, Xiao J, Cui L, Zhou J, Xu W, Liu D. The role of microscopic properties on cortical bone strength of femoral neck. BMC Musculoskelet Disord 2023; 24:133. [PMID: 36803341 PMCID: PMC9940427 DOI: 10.1186/s12891-023-06248-6] [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] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Accepted: 02/17/2023] [Indexed: 02/22/2023] Open
Abstract
BACKGROUND Femoral neck fractures are serious consequence of osteoporosis (OP), numbers of people are working on the micro-mechanisms of femoral neck fractures. This study aims to investigate the role and weight of microscopic properties on femoral neck maximum load (Lmax), funding the indicator which effects Lmax most. METHODS A total of 115 patients were recruited from January 2018 to December 2020. Femoral neck samples were collected during the total hip replacement surgery. Femoral neck Lmax, micro-structure, micro-mechanical properties, micro-chemical composition were all measured and analyzed. Multiple linear regression analyses were performed to identify significant factors that affected the femoral neck Lmax. RESULTS The Lmax, cortical bone mineral density (cBMD), cortical bone thickness (Ct. Th), elastic modulus, hardness and collagen cross-linking ratio were all significantly decreased, whereas other parameters were significantly increased during the progression of OP (P < 0.05). In micro-mechanical properties, elastic modulus has the strongest correlation with Lmax (P < 0.05). The cBMD has the strongest association with Lmax in micro-structure (P < 0.05). In micro-chemical composition, crystal size has the strongest correlation with Lmax (P < 0.05). Multiple linear regression analysis showed that elastic modulus was most strongly related to Lmax (β = 0.920, P = 0.000). CONCLUSIONS Compared with other parameters, elastic modulus has the greatest influence on Lmax. Evaluation of microscopic parameters on femoral neck cortical bone can clarify the effects of microscopic properties on Lmax, providing a theoretical basis for the femoral neck OP and fragility fractures.
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Affiliation(s)
- Ning Xia
- Department of Orthopedics, The General Hospital of Western Theater Command, Chengdu, 610083 China
| | - Yun Cai
- grid.443397.e0000 0004 0368 7493Department of Critical Care Medicine, The Second Affiliated Hospital of Hainan Medical University, Haikou, 570311 China
| | - Qianhua Kan
- grid.263901.f0000 0004 1791 7667School of Mechanics and Aerospace Engineering, Southwest Jiaotong University, Chengdu, 611756 China
| | - Jian Xiao
- Department of Endocrinology, The General Hospital of Western Theater Command, Chengdu, 610083 China
| | - Lin Cui
- Department of Orthopedics, The General Hospital of Western Theater Command, Chengdu, 610083 China
| | - Jiangjun Zhou
- Department of Orthopedic, The 908Th Hospital of Joint Logistic Support Force of PLA, Nanchang, 330001 China
| | - Wei Xu
- Trauma Center, The General Hospital of Western Theater Command, Chengdu, 610083, China.
| | - Da Liu
- Department of Orthopedics, The General Hospital of Western Theater Command, Chengdu, 610083, China.
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Wang L, Wang D, Luo Y, Xu CY, Cui L, Li XB, Sun HB. Electronic state evolution of oxygen-doped monolayer WSe 2 assisted by femtosecond laser irradiation. Phys Chem Chem Phys 2023; 25:2043-2049. [PMID: 36546549 DOI: 10.1039/d2cp04495a] [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: 11/11/2022]
Abstract
Electronic states are significantly correlated with chemical compositions, and the information related to these factors is especially crucial for the manipulation of the properties of matter. However, this key information is usually verified by after-validation methods, which could not be obtained during material processing, for example, in the field of femtosecond laser direct writing inside materials. Here, critical evolution stages of electronic states for monolayer tungsten diselenide (WSe2) around the modification threshold (at a Mott density of ∼1013 cm-2) are observed by broadband femtosecond transient absorption spectroscopy, which is associated with the intense femtosecond-laser-assisted oxygen-doping mechanism. First-principles calculations and control experiments on graphene-covered monolayer WSe2 further confirm this modification mechanism. Our findings reveal a photochemical reaction for monolayer WSe2 under the Mott density condition and provide an electronic state criterion to in situ monitor the degrees of modification in monolayer transition metal dichalcogenides during the femtosecond laser modification.
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Affiliation(s)
- Lei Wang
- State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012, China
| | - Dan Wang
- Department of Mechanical Engineering and Materials Science, Yale University, New Haven, CT 06511, USA
| | - Yang Luo
- State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012, China.,Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China
| | - Chen-Yu Xu
- State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012, China
| | - Lin Cui
- State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012, China
| | - Xian-Bin Li
- State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012, China
| | - Hong-Bo Sun
- State Key Laboratory of Precision Measurement Technology and Instruments, Department of Precision Instrument, Tsinghua University, Haidian, Beijing 100084, China.
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Qiu H, Gui H, Xu H, Cui L, Yu H. Occurrence, controlling factors and noncarcinogenic risk assessment based on Monte Carlo simulation of fluoride in mid-layer groundwater of Huaibei mining area, North China. Sci Total Environ 2023; 856:159112. [PMID: 36181800 DOI: 10.1016/j.scitotenv.2022.159112] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Revised: 09/03/2022] [Accepted: 09/25/2022] [Indexed: 06/16/2023]
Abstract
Fluoride groundwater pollution is a major challenge to ensuring a safe groundwater supply for the global community. This study emphasized mid-layer groundwater (MG) as the main water supply source in the Huaibei mining area, North China. A total of 74 groundwater samples were taken to determine the hydrochemistry, source provenance, driving forces of high-fluoride groundwater, and associated probabilistic health risk using Monte Carlo simulation. The fluoride concentration in 55.56 % of the MG samples exceeded the Chinese drinking water permissible limit of 1 mg/L. In addition, MG is characterized by the hydrochemical faces of HCO3- type and Na+ type, lower Ca2+ and higher TDS concentration. Fluoride enrichment was predominantly controlled by the geogenic sources of fluorite dissolution, silicate weathering and lateral supply from the Carboniferous Taiyuan Formation limestone aquifer (CLA). In addition, the driving forces of high-fluoride groundwater were an alkaline environment, low Ca2+ concentration, high Na+ and HCO3- concentration, cation exchange between Ca2+ and Na+ on the surface of clay minerals, and competitive adsorption of HCO3-. The health risk assessment of F- for noncarcinogenic risk showed that the HQ values of 28.16 % of groundwater samples exceeded the safety limit of 1 for infants, followed by 2.1 % for children and 0 % for both adult females and males. Infants and children are more prone to the impact of excessive F-. The findings of this study will provide new insights into the geochemical behavior of F- and the safety of drinking water.
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Affiliation(s)
- Huili Qiu
- National Engineering Research Center of Coal Mine Water Hazard Controlling, Suzhou University, Suzhou 234000, PR China; School of Information Engineering, Suzhou University, Suzhou 234000, PR China; Key Laboratory of Mine Water Resource Utilization of Anhui Higher Education Institutes, Suzhou University, Suzhou 234000, PR China
| | - Herong Gui
- National Engineering Research Center of Coal Mine Water Hazard Controlling, Suzhou University, Suzhou 234000, PR China; Key Laboratory of Mine Water Resource Utilization of Anhui Higher Education Institutes, Suzhou University, Suzhou 234000, PR China.
| | - Haifeng Xu
- School of Information Engineering, Suzhou University, Suzhou 234000, PR China
| | - Lin Cui
- School of Information Engineering, Suzhou University, Suzhou 234000, PR China
| | - Hao Yu
- National Engineering Research Center of Coal Mine Water Hazard Controlling, Suzhou University, Suzhou 234000, PR China; Key Laboratory of Mine Water Resource Utilization of Anhui Higher Education Institutes, Suzhou University, Suzhou 234000, PR China
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50
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Cui L, Huang L, Pan FF, Wang Y, Huang Q, Guan YH, Lo CYZ, Guo YH, Chan AS, Xie F, Guo QH. Chinese Preclinical Alzheimer's Disease Study (C-PAS): Design and Challenge from PET Acceptance. J Prev Alzheimers Dis 2023; 10:571-580. [PMID: 37357299 DOI: 10.14283/jpad.2023.49] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/27/2023]
Abstract
BACKGROUND Large-scale preclinical Alzheimer's disease study based on β-amyloid positron emission tomography (PET) has not been conducted in China. OBJECTIVES Establish a cohort on Alzheimer's disease spectrum, especially the preclinical stages, and determine the factors influencing the acceptance of β-amyloid PET scan screening in China. DESIGN Longitudinal. SETTING Shanghai, China. PARTICIPANTS A total of 4386 participants were screened and 2451 participants who met enrollment criteria were eventually included in this report. MEASUREMENTS The multidimensional data was collected, including comprehensive assessments, PET and magnetic resonance imaging scans, genetics, and plasma biomarkers. RESULTS There were 571 participants in the normal cognition group, 625 participants in the subjective cognitive decline group, 155 participants in the objectively defined subtle cognitive decline group, 501 participants in the mild cognitive impairment group, 471 participants in Alzheimer's disease group, and 128 participants with cognitive impairment from other known causes. Significant differences in demographics, florbetapir PET, APOE, and neuropsychological tests were found among the groups. Eight hundred and seventeen participants (33.3%) completed the florbetapir PET scanning. Non-demented individuals with higher age, lower education years, male, with a family history of dementia, and higher self-report depression prefer to undergo PET scans. Acceptance of PET scans did not correlate with objectively assessed cognitive impairment. CONCLUSIONS The Chinese Preclinical Alzheimer's Disease Study was designed to establish a large-scale cohort with comprehensive data collection. Our findings may help to understand the factors affecting the acceptance of β-amyloid PET in urban areas of China and help us address the low acceptance challenge.
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Affiliation(s)
- L Cui
- Qihao Guo, Department of Gerontology, Shanghai Sixth People's Hospital, Shanghai Jiao Tong University School of Medicine, 600 Yishan Road, Shanghai, 200233, China, E-mail: ; Fang Xie, Department of Nuclear Medicine and PET Center, Huashan Hospital, Fudan University, 518 East Wuzhong Road, Shanghai, 200040, China, E-mail: ; Agnes Suiyin Chan, Neuropsychology Laboratory, Department of Psychology, The Chinese University of Hong Kong, Hong Kong SAR, China, E-mail:
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