1
|
Hu S, Cheng Z, Li M, Gao S, Gao D, Kang P. [Correlation between insulin resistance and coronary collateral circulation in patients with chronic total coronary occlusion]. Nan Fang Yi Ke Da Xue Xue Bao 2024; 44:780-786. [PMID: 38708513 DOI: 10.12122/j.issn.1673-4254.2024.04.21] [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] [Subscribe] [Scholar Register] [Indexed: 05/07/2024]
Abstract
OBJECTIVE To explore the impact of diabetes on collateral circulation (CC) development in patients with chronic total coronary occlusion (CTO) and the underlying regulatory mechanism. METHODS This study was conducted among 87 patients with coronary heart disease (CHD), who had CTO in at least one vessel as confirmed by coronary angiography. Among them 42 patients were found to have a low CC level (Cohen-Rentrop grades 0-1) and 45 had a high CC level (grades 2-3). In the 39 patients with comorbid diabetes mellitus and 48 non-diabetic patients, insulin resistance (IR) levels were compared between the subgroups with different CC levels. The steady-state mode evaluation method was employed for calculating the homeostatic model assessment for insulin resistance index (HOMA-IR) using a mathematical model. During the interventional procedures, collateral and peripheral blood samples were collected from 22 patients for comparison of the metabolites using non-targeted metabolomics analysis. RESULTS NT-proBNP levels and LVEF differed significantly between the patients with different CC levels (P<0.05). In non-diabetic patients, HOMA-IR was higher in low CC level group than in high CC level groups. Compared with the non-diabetic patients, the diabetic patients showed 63 upregulated and 48 downregulated metabolites in the collateral blood and 23 upregulated and 14 downregulated metabolites in the peripheral blood. The differential metabolites in the collateral blood were involved in aromatic compound degradation, fatty acid biosynthesis, and steroid degradation pathways; those in the peripheral blood were related with pentose phosphate metabolism, bacterial chemotaxis, hexanoyl-CoA degradation, glycerophospholipid metabolism, and lysine degradation pathways. CONCLUSION The non-diabetic patients with a low level of CC had significant insulin resistance. The degradation pathways of aromatic compounds, fatty acid biosynthesis, and steroid degradation are closely correlated with the development of CC.
Collapse
Affiliation(s)
- S Hu
- Department of Cardiology, First Affiliated Hospital of Bengbu Medical University, Bengbu 233004, China
| | - Z Cheng
- Department of Cardiology, First Affiliated Hospital of Bengbu Medical University, Bengbu 233004, China
| | - M Li
- Department of Cardiology, First Affiliated Hospital of Bengbu Medical University, Bengbu 233004, China
| | - S Gao
- Department of Cardiology, First Affiliated Hospital of Bengbu Medical University, Bengbu 233004, China
| | - D Gao
- Department of Cardiology, First Affiliated Hospital of Bengbu Medical University, Bengbu 233004, China
| | - P Kang
- Department of Cardiology, First Affiliated Hospital of Bengbu Medical University, Bengbu 233004, China
| |
Collapse
|
2
|
Xu Q, Xue Q, Tan S, Cheng Z, Qi X, Yan C. Enhanced photo-Fenton degradation of dyes under visible light with recyclable γ-Fe 2O 3/CQDs: Catalyst preparation, performance and mechanism insight. Environ Pollut 2024; 347:123634. [PMID: 38401638 DOI: 10.1016/j.envpol.2024.123634] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 01/26/2024] [Accepted: 02/21/2024] [Indexed: 02/26/2024]
Abstract
A low band gap and visible light-responsive heterogeneous Photo-Fenton catalyst of γ-Fe2O3/CQDs micron composite was prepared under the one-pot hydrothermal method. The Photo-Fenton degradation of γ-Fe2O3/CQDs towards dye solution of rhodamine B(RhB), methyl blue (MB), and methyl orange (MO) was studied comparatively with α-Fe2O3. The γ-Fe2O3/CQDs exhibited remarkable catalytic performance for various dyes and with a first-order rate (k) of 14 times higher than that of initial α-Fe2O3 with a low concentration of H2O2 of 0.049 mmol. L-1 and a wider pH range of 3.1-7.1. The microstructure of the compounds was observed by XRD, SEM, TEM, FT-IR, and XPS characterization results suggested that the γ-Fe2O3/CQDs nanocomposite was formed through the stable Fe-O-C bonds, thus, the band gap decreased, and it is more favorable for the distance of holes and electrons. The free radical trapping experiment and EPR analysis indicated that •OH and 1O2 were the major active species during the typical photo-Fenton reaction. What's more, the γ-Fe2O3/CQDs also exhibited good stability and magnetic properties. DFT conclusion shows that the mechanism of the potential determination step (PDS) on α-Fe2O3(220) is the cleavage of H2O2 with an energy barrier of only 0.08 eV, which is 0.54 eV lower than that of OH* on γ-Fe2O3(220). Thus it can be deemed that γ-Fe2O3/CQDs perform much higher catalytic activity for the dissociation of H2O2 than α-Fe2O3. This work gives a feasible and economical countermeasure of visible light Photo-Fenton dispose of dye wastewater with a recyclable magnetic γ-Fe2O3/CQDs micron catalyst.
Collapse
Affiliation(s)
- Qian Xu
- School of Chemistry and Chemical Engineering, Chongqing University of Technology, Chongqing, 400054, China
| | - Qian Xue
- School of Chemistry and Chemical Engineering, Chongqing University of Technology, Chongqing, 400054, China
| | - Shengmei Tan
- School of Chemistry and Chemical Engineering, Chongqing University of Technology, Chongqing, 400054, China
| | - Zhiliang Cheng
- School of Chemistry and Chemical Engineering, Chongqing University of Technology, Chongqing, 400054, China.
| | - Xueqiang Qi
- School of Chemistry and Chemical Engineering, Chongqing University of Technology, Chongqing, 400054, China
| | - Chaoqun Yan
- Key Laboratory of Bio-resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, 610065, Sichuan, China
| |
Collapse
|
3
|
Tang J, Cheng Z, Zhang X, Sun J, Liu Z, Zhang H, Tan S, Qiu F. Continuous ultrasonic ozone coupling technology-assisted control of ceramic membrane fouling coupled enhanced multiphase mixing to treat dye wastewater and CFD flow field simulation. Ultrason Sonochem 2024; 104:106839. [PMID: 38452711 PMCID: PMC10924065 DOI: 10.1016/j.ultsonch.2024.106839] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Revised: 02/07/2024] [Accepted: 02/27/2024] [Indexed: 03/09/2024]
Abstract
In this study, ozone catalysts (hydrogenation-modified red mud, HM-RM) successfully prepared by hydrogenation-modification of industrial hazardous solid waste red mud (RM) as a raw material in accordance with the viewpoint of treating waste with waste and using waste. Meanwhile, as for the common phenomenon of membrane fouling, uneven distribution of multiphase solid catalysts and ozone in liquids, the addition of ultrasound can not only disperse materials, but also play a role in online cleaning of ceramic membranes and catalysts. The optimum treatment conditions for Rhodamine B (RhB) solution with volume of 2 L and concentration of 40 mg/L were catalyst concentration of 0.4 mg/L, reaction temperature of 45 °C, ultrasonic time of 1 h, ultrasonic intensity of 600 W, removal rate of RhB was up to 90 %. In addition, the computational fluid dynamics (CFD) simulation method was used to investigate the fluid flow between the two gas-liquid phases and the effect of the negative pressure of the membrane pump on the fluid by the analysis of flow, pressure and ozone flux of the ceramic membrane(CM) reaction apparatus. The CFD simulation results showed that at the inlet gas-liquid flow rate of 3 m/s and the negative pressure of 20,000 Pa, the maximum flow rates of CM-1 were 3 m/s, 0.752 m/s for CM-2, and 0.228 m/s for CM-3, respectively. Vortices, which are beneficial to solid-liquid mixing and gas-liquid mass transfer, formed between the suction port CM-1 of CM-1 and the inlets of CM-2 and CM-3. This discovery is consistent with relevant experimental research results. Significantly higher concentrations of both •OH and dissolved ozone were observed in the US/HM-RM/O3 system compared to other systems, indicating the significant improvement in ozone utilization rate through the application of ultrasound. The superiority of the US/HM-RM/O3 device was demonstrated. The real dye effluent was tested under optimum operating conditions and the results showed that COD and TOC were reduced by 81.34 % and 60.23 % respectively after 180 min of treatment. The above research can provide technical support for the treatment of dye wastewater using Ultrasound-enhanced ozone oxidation ceramic membranes.
Collapse
Affiliation(s)
- Jinshan Tang
- School of Chemistry and Chemical Engineering, Chongqing University of Technology, Chongqing 400054, PR China
| | - Zhiliang Cheng
- School of Chemistry and Chemical Engineering, Chongqing University of Technology, Chongqing 400054, PR China.
| | - Xuan Zhang
- School of Chemistry and Chemical Engineering, Chongqing University of Technology, Chongqing 400054, PR China
| | - Jinyu Sun
- School of Chemistry and Chemical Engineering, Chongqing University of Technology, Chongqing 400054, PR China
| | - Zhaoqiang Liu
- School of Chemistry and Chemical Engineering, Chongqing University of Technology, Chongqing 400054, PR China
| | - Hao Zhang
- School of Chemistry and Chemical Engineering, Chongqing University of Technology, Chongqing 400054, PR China
| | - Shengmei Tan
- School of Chemistry and Chemical Engineering, Chongqing University of Technology, Chongqing 400054, PR China
| | - Facheng Qiu
- School of Chemistry and Chemical Engineering, Chongqing University of Technology, Chongqing 400054, PR China.
| |
Collapse
|
4
|
Chai X, Dong Y, Qiu F, Li W, Zhang L, Cheng Z, Li L, Zhang X. Eddy Current Identification Methods and Applications in the Chemical Industry: A Mini-Review. ACS Omega 2024; 9:8594-8600. [PMID: 38434878 PMCID: PMC10905721 DOI: 10.1021/acsomega.3c09095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Revised: 01/13/2024] [Accepted: 01/25/2024] [Indexed: 03/05/2024]
Abstract
As one of the most common fluid patterns in the fluid flow process of chemical production, a vortex has been successfully demonstrated to be a structure that promotes interphase mixing and enhances heat and mass transfer. Therefore, it is essential to reveal the vortex evolution laws in order to realize more efficient and less energy-consuming chemical production. In this Mini-Review, the vortex identification criteria are introduced in detail and categorized according to their development history. The application of vortex identification technology and its application in the chemical industry are explored with a large number of examples. This review enhances our understanding of vortex structures and provides plenty of innovative ideas for the study of chemical industry production.
Collapse
Affiliation(s)
- Xinjie Chai
- college
of Chemistry and Chemical Engineering, Chongqing
University of Technology, Chongqing 400054, China
| | - Yingying Dong
- college
of Chemistry and Chemical Engineering, Chongqing
University of Technology, Chongqing 400054, China
| | - Facheng Qiu
- college
of Chemistry and Chemical Engineering, Chongqing
University of Technology, Chongqing 400054, China
| | - Wensheng Li
- college
of Chemistry and Chemical Engineering, Chongqing
University of Technology, Chongqing 400054, China
| | - Lei Zhang
- college
of Chemistry and Chemical Engineering, Chongqing
University of Technology, Chongqing 400054, China
| | - Zhiliang Cheng
- college
of Chemistry and Chemical Engineering, Chongqing
University of Technology, Chongqing 400054, China
| | - Li Li
- college
of Chemistry and Chemical Engineering, Chongqing
University of Technology, Chongqing 400054, China
| | - Xingran Zhang
- college
of Chemistry and Chemical Engineering, Chongqing
University of Technology, Chongqing 400054, China
| |
Collapse
|
5
|
Chen Y, Liu Y, Hu S, Wu D, Zhang M, Cheng Z. Exploration of a novel electrochemical CN coupling process: Urea synthesis from direct air carbon capture with nitrate wastewater. Sci Total Environ 2024; 913:169722. [PMID: 38163593 DOI: 10.1016/j.scitotenv.2023.169722] [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: 10/05/2023] [Revised: 12/25/2023] [Accepted: 12/25/2023] [Indexed: 01/03/2024]
Abstract
Direct air capture (DAC) can be used to decrease the CO2 concentration in the atmosphere, but this requires substantial energy consumption. If residual waste carbon (in the form of bicarbonate solution) from DAC can be directly reused, it might present a novel method for overcoming the aforementioned challenges. Electrochemical CN coupling methods for synthesizing urea have garnered considerable attention for waste carbon utilization, but the carbon source is high-purity CO2. No research has been conducted regarding the application of bicarbonate solution as the carbon source. This study proposes a proof-of-concept electrochemical CN coupling process for synthesizing urea using bicarbonate solution from DAC as the carbon source and nitrate from wastewater as the nitrogen source. These results confirmed the feasibility of synthesizing urea using a three-electrode system employing TF and CuInS2/TF as the working electrodes via potentiostatic electrolysis. Under the optimal conditions (initial pH 5.0 and applied potential of -1.3 V vs. Ag/AgCl), the urea yield after 2 h of electrolysis reached 3017.2 μg h-1 mgcat.-1 and an average Faradaic efficiency of 19.6 %. The in-situ attenuated total reflection surface-enhanced infrared absorption spectroscopy indicated a gradual increase in the intensity of the -CONH bond signal on the surface of the CuInS2/TF electrode as the reaction progressed. This implied that this bond may be a key chemical group in this process. The density functional theory calculations demonstrated that *CONH was a pivotal intermediate during CN coupling, and a two-step CN coupling reaction path was proposed. *NH + *CO primarily transformed into *CONH, followed by the conversion reaction of *CONH + *NO to *NOCONH2. This study offers a groundbreaking approach for waste carbon utilization from DAC and holds the potential to furnish technical underpinnings for advancing electrochemical CN coupling methods.
Collapse
Affiliation(s)
- Ying Chen
- Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, China; School of Chemistry and Chemical Engineering, Chongqing University of Technology, Chongqing 400054, China
| | - Yuan Liu
- Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, China; Faculty of Geosciences and Environmental Engineering, Southwest Jiaotong University, Chengdu 611756, Sichuan, China.
| | - Shujie Hu
- Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, China
| | - Di Wu
- Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, China
| | - Mengyue Zhang
- Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, China
| | - Zhiliang Cheng
- School of Chemistry and Chemical Engineering, Chongqing University of Technology, Chongqing 400054, China.
| |
Collapse
|
6
|
Cheng Z, Chen J, Zhang Y, Li X, Zhang N, Liu F, Jiao Y. In Vitro Hypoglycemic Activities of Lactobacilli and Bifidobacterium Strains from Healthy Children's Sources and Their Effect on Stimulating GLP-1 Secretion in STC-1 Cells. Foods 2024; 13:519. [PMID: 38397496 PMCID: PMC10887728 DOI: 10.3390/foods13040519] [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: 12/29/2023] [Revised: 02/05/2024] [Accepted: 02/06/2024] [Indexed: 02/25/2024] Open
Abstract
A long-term use of chemical drugs cannot cure type II diabetes mellitus (T2DM) and their numerous toxic side effects can be harmful to human health. In recent years, probiotics have emerged as a natural resource to replace chemical drugs in alleviating many human ailments. Healthy children's intestines have a lot of colonized Lactobacilli and Bifidobacterium, and these beneficial bacteria can help promote overall health. The objective of this study was to isolate potential antidiabetic probiotic strains from healthy children and evaluate their application prospects. Firstly, Lactobacillus and Bifidobacterium strains were isolated from healthy children's feces and identified by the pheS or clpC genes with their respective 16S rRNA genes. Then, hydrophobicity, artificial gastrointestinal fluid tolerance, α-Glucosidase and Dipeptidyl peptidase IV (DPP-IV) inhibitory activities of isolated strains were determined, and antioxidant activities and promoting secretion of GLP-1 in STC-1 cells of candidate strains were tested. Results showed that 6 strains of Lactobacillus and Bifidobacterium were obtained from the feces of healthy children aged 3 years, respectively, including Lacticaseibacillus paracasei L-21 and L-25, Levilactobacillus brevis L-16, Lentilactobacillus buchneri L-9, Lactiplantibacillus plantarum L-8 and L-3, Bifidobacterium bifidum 11-1 and B-84, Bifidobacterium longum subsp. longum 6-1, 6-2, B42 and B53. The hydrophobicity and auto-aggregation levels of all these strains were higher than 30% and 50%, respectively, and the decrease in the number of colonies of all strains in the artificial gastrointestinal fluid was less than 2 log CFU/mL. Strains L-3, L-8, L-9, L-21, 6-1, 11-1, B53 and B84 were selected based on their high α-glucosidase inhibitory activity and DPP-IV inhibitory activity, and results of the antioxidant capacity assay showed that the remaining strains all had intense comprehensive antioxidant activity. Additionally, Lacticaseibacillus paracasei L-21 and Bifidobacterium longum subsp. longum B-53 had the most substantial prompting effect on GLP-1 secretion in the STC-1 cell line. These results indicated that Lacticaseibacillus paracasei L-21 and Bifidobacterium longum subsp. longum B-53 could be used as a potential antidiabetic strain; thus, its application as a food supplement and drug ingredient could be recommended after in vivo mitigation of type II diabetes test.
Collapse
Affiliation(s)
- Zhiliang Cheng
- Key Laboratory of Dairy Science-Ministry of Education, Food College, Northeast Agricultural University, Harbin 150030, China; (Z.C.); (J.C.); (Y.Z.); (X.L.); (N.Z.)
| | - Jingru Chen
- Key Laboratory of Dairy Science-Ministry of Education, Food College, Northeast Agricultural University, Harbin 150030, China; (Z.C.); (J.C.); (Y.Z.); (X.L.); (N.Z.)
| | - Yulong Zhang
- Key Laboratory of Dairy Science-Ministry of Education, Food College, Northeast Agricultural University, Harbin 150030, China; (Z.C.); (J.C.); (Y.Z.); (X.L.); (N.Z.)
| | - Xinyi Li
- Key Laboratory of Dairy Science-Ministry of Education, Food College, Northeast Agricultural University, Harbin 150030, China; (Z.C.); (J.C.); (Y.Z.); (X.L.); (N.Z.)
| | - Ning Zhang
- Key Laboratory of Dairy Science-Ministry of Education, Food College, Northeast Agricultural University, Harbin 150030, China; (Z.C.); (J.C.); (Y.Z.); (X.L.); (N.Z.)
| | - Fei Liu
- Key Laboratory of Dairy Science-Ministry of Education, Food College, Northeast Agricultural University, Harbin 150030, China; (Z.C.); (J.C.); (Y.Z.); (X.L.); (N.Z.)
| | - Yuehua Jiao
- Center of Drug Safety Evaluation, Heilongjiang University of Chinese Medicine, Harbin 150040, China
| |
Collapse
|
7
|
Tian Y, Carrillo-Malani N, Feng K, Miller J, Busch TM, Sundaram KM, Cheng Z, Amirshaghaghi A, Tsourkas A. Theranostic Phthalocyanine and Naphthalocyanine Nanoparticles for Photoacoustic Imaging and Photothermal Therapy of Tumors. Nanotheranostics 2024; 8:100-111. [PMID: 38164502 PMCID: PMC10750118 DOI: 10.7150/ntno.88892] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Accepted: 11/02/2023] [Indexed: 01/03/2024] Open
Abstract
Background: Phthalocyanine (PC) and naphthalocyanine (NC) dyes have long garnered interest as theranostic agents for optical imaging and phototherapy due to their near-infrared absorbance, photostability, imaging contrast, and proven safety in clinical trials. Yet, only a small fraction of these dyes has been evaluated as photothermal therapy (PTT) agents for cancer treatment. Methods: Nearly 40 distinct NC and PC dyes were encapsulated within polymeric PEG-PCL micelles via oil-in-water emulsions. The optimal NC/PC-loaded micelle formulations for PTT and photoacoustic (PA) imaging were identified through in vivo and in vitro studies. Results: The most promising candidate, CuNC(Octa)-loaded micelles, demonstrated a strong PA signal with a peak absorbance at ~870 nm, high photothermal efficiency, and photostability. The CuNC(Octa)-loaded micelles exhibited heat generation as good or better than gold nanorods/nanoshells and >10-fold higher photoacoustic signals. Micelle preparation was reproducible/scalable, and the CuNC(Octa)-loaded micelles are highly stable under physiological conditions. The CuNC(Octa)-loaded micelles localize within tumors via enhanced permeability and retention and are readily detectable by PA imaging. In a syngeneic murine tumor model of triple-negative breast cancer, CuNC(Octa)-loaded micelles demonstrate efficient heat generation with PTT, leading to the complete eradication of tumors. Conclusions: CuNC(Octa)-loaded micelles represent a promising theranostic agent for PA imaging and PTT. The ability to utilize conventional ultrasound in combination with PA imaging enables the simultaneous acquisition of information about tumor morphology and micelle accumulation. PTT with CuNC(Octa)-loaded micelles can lead to the complete eradication of highly invasive tumors.
Collapse
Affiliation(s)
- Yiran Tian
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA 19104, USA
| | | | - Kailin Feng
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Joann Miller
- Department of Radiation Oncology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Theresa M. Busch
- Department of Radiation Oncology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Karthik M. Sundaram
- Department of Radiology, Hospital of University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Zhiliang Cheng
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Ahmad Amirshaghaghi
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Andrew Tsourkas
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA 19104, USA
| |
Collapse
|
8
|
Yan C, Cheng Z, Zhang X, Zhang Y, Chen X, Zeng G, Xu H. Highly efficient catalytic ozonation degradation of levofloxacin by facile hydrogenation-modified red mud wastes. Environ Pollut 2023; 334:122149. [PMID: 37433366 DOI: 10.1016/j.envpol.2023.122149] [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: 03/27/2023] [Revised: 06/05/2023] [Accepted: 07/03/2023] [Indexed: 07/13/2023]
Abstract
Iron-rich red mud (RM) is a potential catalyst. However, as industrial waste, is strongly alkaline, low effectiveness, and safety concerns are problems that cannot be ignored, it is urgent to mine out a reasonable disposal and utilization technology for the waste. In this study, an effective catalyst (H-RM) was obtained by facile hydrogenation heating modification of red mud. Then above-prepared H-RM was applied in the catalytic ozonation degradation of levofloxacin (LEV). The H-RM exhibited more remarkable catalytic activities than the RM in terms of LEV degradation, and the optimal efficiency can reach over 90% within 50 min. The mechanism experiment proved that the concentration of dissolved ozone and hydroxyl radical (•OH) significantly increased, which enhanced the oxidation effect. Hydroxyl radical played a dominant role in the degradation of LEV. In the safety test, it is concluded that the concentration of total hexavalent chromium (total Cr(Ⅵ)) in the H-RM catalyst decreases and the leaching concentration of water-soluble Cr(Ⅵ) in aqueous solution is low. The results indicated that the hydrogenation technique is an available Cr (Ⅵ) detoxification method for RM. Moreover, the H-RM has excellent catalytic stability, which is beneficial to recycling and maintains high activity. This research provides an effective means to fulfill the reuse of industrial waste as an alternative to standard raw materials, and comprehensive utilization of the waste to attain the purpose of treating pollution with wastes.
Collapse
Affiliation(s)
- Chaoqun Yan
- Key Laboratory of Bio-resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, 610065, Sichuan, PR China; School of Chemistry and Chemical Engineering, Chongqing University of Technology, Chongqing, 400054, PR China
| | - Zhiliang Cheng
- School of Chemistry and Chemical Engineering, Chongqing University of Technology, Chongqing, 400054, PR China
| | - Xuan Zhang
- School of Chemistry and Chemical Engineering, Chongqing University of Technology, Chongqing, 400054, PR China
| | - Yumei Zhang
- Key Laboratory of Bio-resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, 610065, Sichuan, PR China
| | - Xianghan Chen
- Key Laboratory of Bio-resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, 610065, Sichuan, PR China
| | - Guoquan Zeng
- Key Laboratory of Bio-resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, 610065, Sichuan, PR China
| | - Heng Xu
- Key Laboratory of Bio-resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, 610065, Sichuan, PR China.
| |
Collapse
|
9
|
Cheng Z, Liu H, Chen Y, Zhu SL, Yang SW, Chen J. Two-dimensional speckle tracking imaging to assess the hazards of left ventricular function and ventricular wall motion disorders in children with pre-excitation syndrome and the efficacy of radiofrequency ablation treatment. Eur Rev Med Pharmacol Sci 2023; 27:7882-7890. [PMID: 37750616 DOI: 10.26355/eurrev_202309_33545] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 09/27/2023]
Abstract
OBJECTIVE Our study aimed at analyzing the echocardiographic multi-indicator evaluation of the risk of Wolff-Parkinson-White syndrome (WPW) on the left ventricular function and ventricular wall motion disorders, as well as the effect of radiofrequency ablation treatment. PATIENTS AND METHODS The clinical data of 55 WPW patients treated with radiofrequency (RF) ablation at the Children's Hospital of Nanjing Medical University between January 2018 and December 2022 were retrospectively analyzed and included in the observation group, while other 50 healthy children were included in the control group during the same time. We analyzed the echocardiographic indices of the patients, assessed the effects of the disease on left ventricular myocardial function and ventricular wall motion disorders, and evaluated the effects of radiofrequency ablation treatment on the myocardium of the left ventricle. The echocardiographic parameters were analyzed to assess the effect of the disease on left ventricular myocardial function and ventricular wall dyskinesia. RESULTS Of the 55 patients with pre-excited syndrome, 20 had type A bypass and 35 had type B bypass. Ten patients had pre-excited dilated cardiomyopathy with significant enlargement of the left ventricular cavity, reduced left ventricular systolic function, and a significant impairment of ventricular wall motion; the other 5 patients had basal segmental septal motion incoordination. Compared to the control group, patients with left ventricular end-diastolic diameter (LVEDD) (42.9±5.0 mm vs. 39.2±3.0 mm), peak strain dispersion (PSD) (38.8±15.3 ms vs. 21.7±2.2 ms), maximum peak time difference (MPTD) (200.2±92.8 ms vs. 89.5±9.8 ms) and interventricular mechanical delay (IVMD) (36.2±13.7 ms vs. 21.2±2.1 ms) before RF ablation were increased. Left ventricular ejection fraction (LVEF) (57.1±9.1% vs. 65.9±2.6%), E/A (1.1±0.2 vs. 1.8±0.2) and global longitudinal strain (GLS) (-18.7±2.2% vs. -22.4±0.5%) decreased, with statistically significant differences (p<0.05). All 55 patients had a successful procedure, and all postoperative echocardiographic parameters were found to be improved, compared to the preoperative period. The results of the postoperative review after 3 months showed differences in E/A, PSD, MPTD, and IVMD compared to the healthy group, suggesting that left ventricular diastolic function and synchrony had not fully returned to normal. CONCLUSIONS Echocardiography can better evaluate myocardial motion and function in patients with Wolff-Parkinson-White syndrome and monitor the effect and progress of disease treatment, and has high clinical application value.
Collapse
Affiliation(s)
- Z Cheng
- Department of Ultrasound, Nanjing Gaochun People's Hospital, Nanjing, China.
| | | | | | | | | | | |
Collapse
|
10
|
Amirshaghaghi A, Chang WC, Chhay B, Bartolomeu AR, Clapper ML, Cheng Z, Tsourkas A. Phthalocyanine-Blue Nanoparticles for the Direct Visualization of Tumors with White Light Illumination. ACS Appl Mater Interfaces 2023; 15:33373-33381. [PMID: 37395349 PMCID: PMC10724988 DOI: 10.1021/acsami.3c05140] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/04/2023]
Abstract
The current standard of care for colon cancer surveillance relies heavily on white light endoscopy (WLE). However, dysplastic lesions that are not visible to the naked eye are often missed when conventional WLE equipment is used. Although dye-based chromoendoscopy shows promise, current dyes cannot delineate tumor tissues from surrounding healthy tissues accurately. The goal of the present study was to screen various phthalocyanine (PC) dye-loaded micelles for their ability to improve the direct visualization of tumor tissues under white light following intravenous administration. Zinc PC (tetra-tert-butyl)-loaded micelles were identified as the optimal formulation. Their accumulation within syngeneic breast tumors led the tumors to turn dark blue in color, making them clearly visible to the naked eye. These micelles were similarly able to turn spontaneous colorectal adenomas in Apc+/Min mice a dark blue color for easy identification and could enable clinicians to more effectively detect and remove colonic polyps.
Collapse
Affiliation(s)
- Ahmad Amirshaghaghi
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Wen-Chi Chang
- Cancer Prevention and Control Program, Fox Chase Cancer Center, Philadelphia, PA 19111, USA
| | - Bonirath Chhay
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Ariane R. Bartolomeu
- Cancer Prevention and Control Program, Fox Chase Cancer Center, Philadelphia, PA 19111, USA
| | - Margie L. Clapper
- Cancer Prevention and Control Program, Fox Chase Cancer Center, Philadelphia, PA 19111, USA
| | - Zhiliang Cheng
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Andrew Tsourkas
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA 19104, USA
| |
Collapse
|
11
|
Cheng Z, Little MW, Ferris C, Takeda H, Ingvartsen KL, Crowe MA, Wathes DC. Influence of the concentrate inclusion level in a grass silage-based diet on hepatic transcriptomic profiles in Holstein-Friesian dairy cows in early lactation. J Dairy Sci 2023; 106:S0022-0302(23)00376-4. [PMID: 37474362 DOI: 10.3168/jds.2022-22860] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Accepted: 02/15/2023] [Indexed: 07/22/2023]
Abstract
Excessive negative energy balance in early lactation is linked to an increased disease risk but may be mitigated by appropriate nutrition. The liver plays central roles in both metabolism and immunity. Hepatic transcriptomic profiles were compared between 3 dietary groups in each of 40 multiparous and 18 primiparous Holstein-Friesian cows offered isonitrogenous grass silage-based diets with different proportions of concentrates: (1) low concentrate (LC, 30% concentrate + 70% grass silage); (2) medium concentrate (MC, 50% concentrate + 50% grass silage), or (3) high concentrate (HC, 70% concentrate + 30% grass silage). Liver biopsies were taken from all cows at around 14 d in milk for RNA sequencing, and blood metabolites were measured. The sequencing data were analyzed separately for primiparous and multiparous cows using CLC Genomics Workbench V21 (Qiagen Digital Insights), focusing on comparisons between HC and LC groups. More differentially expressed genes (DEG) were seen between the primiparous cows receiving HC versus LC diets than for multiparous cows (597 vs. 497), with only 73 in common, indicating differential dietary responses. Multiparous cows receiving the HC diet had significantly higher circulating glucose and insulin-like growth factor-1 and lower urea than those receiving the LC diet. In response to HC, only the multiparous cows produced more milk. In these animals, bioinformatic analysis indicated expression changes in genes regulating fatty acid metabolism and biosynthesis (e.g., ACACA, ELOVL6, FADS2), increased cholesterol biosynthesis (e.g., CYP7A1, FDPS, HMGCR), downregulation in hepatic AA synthesis (e.g., GPT, GCLC, PSPH, SHMT2), and decreased expression of acute phase proteins (e.g., HP, LBP, SAA2). The primiparous cows on the HC diet also downregulated genes controlling AA metabolism and synthesis (e.g., CTH, GCLC, GOT1, ODC1, SHMT2) but showed higher expression of genes indicative of inflammation (e.g., CCDC80, IL1B, S100A8) and fibrosis (e.g., LOX, LUM, PLOD2). This potentially adverse response to a HC diet in physically immature animals warrants further investigation.
Collapse
Affiliation(s)
- Z Cheng
- Department of Pathobiology and Population Sciences, Royal Veterinary College, Hatfield, Hertfordshire AL9 7TA, United Kingdom
| | - M W Little
- Agri-Food and Biosciences Institute, Belfast BT9 5PX, United Kingdom
| | - C Ferris
- Agri-Food and Biosciences Institute, Belfast BT9 5PX, United Kingdom
| | - H Takeda
- Unit of Animal Genomics, GIGA Institute, University of Liège, B-4000 Liège, Belgium
| | - K L Ingvartsen
- Department of Animal and Veterinary Science, Aarhus University, DK-8830 Tjele, Denmark
| | - M A Crowe
- School of Veterinary Medicine, University College Dublin, Belfield, Dublin 4, Ireland.
| | - D C Wathes
- Department of Pathobiology and Population Sciences, Royal Veterinary College, Hatfield, Hertfordshire AL9 7TA, United Kingdom
| |
Collapse
|
12
|
Ge F, Wan M, Cheng Z, Chen X, Chen Q, Qi Z. [Aloin inhibits gastric cancer cell proliferation and migration by suppressing the STAT3/HMGB1 signaling pathway]. Nan Fang Yi Ke Da Xue Xue Bao 2023; 43:702-709. [PMID: 37313810 DOI: 10.12122/j.issn.1673-4254.2023.05.04] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
OBJECTIVE To investigate the molecular mechanism underlying the inhibitory effect of aloin on the proliferation and migration of gastric cancer cells. METHODS Human gastric cancer MGC-803 cells treated with 100, 200 and 300 μg/mL aloin were examined for changes in cell viability, proliferation and migration abilities using CCK-8, EdU and Transwell assays. HMGB1 mRNA level in the cells was detected with RT-qPCR, and the protein expressions of HMGB1, cyclin B1, cyclin E1, E-cadherin, MMP-2, MMP-9 and p-STAT3 were determined using Western blotting. JASPAR database was used to predict the binding of STAT3 to HMGB1 promoter. In a BALB/c-Nu mouse model bearing subcutaneous MGC-803 cell xenograft, the effect of intraperitoneal injection of aloin (50 mg/kg) on tumor growth was observed. The protein expressions of HMGB1, cyclin B1, cyclin E1, E-cadherin, MMP-2, MMP-9 and p-STAT3 in the tumor tissue was examined using Western blotting, and tumor metastasis in the liver and lung tissues was detected using HE staining. RESULTS Treatment with aloin concentration-dependently inhibited the viability of MGC-803 cells (P < 0.05), significantly reduced the number of EdU-positive cells (P < 0.01), and attenuated the migration ability of the cells (P < 0.01). Aloin treatment dose-dependently down-regulated HMGB1 mRNA expression (P < 0.01), lowered the protein expressions of HMGB1, cyclin B1, cyclin E1, MMP-2, MMP-9 and p-STAT3, and up-regulated E-cadherin expression in MGC-803 cells. Prediction based on JASPAR database suggested that STAT3 could bind to the promoter region of HMGB1. In the tumor-bearing mice, aloin treatment significantly reduced the tumor size and weight (P < 0.01), lowered the protein expressions of cyclin B1, cyclin E1, MMP-2, MMP-9, HMGB1 and p-STAT3 and increased the expression of E-cadherin in the tumor tissue (P < 0.01). CONCLUSION Aloin attenuates the proliferation and migration of gastric cancer cells by inhibiting the STAT3/HMGB1 signaling pathway.
Collapse
Affiliation(s)
- F Ge
- Department of Biochemistry and Molecular Biology, School of Basic Medicine, Wannan Medical College, Wuhu 241002, China
- Anhui Provincial Key Laboratory of Active Biological Macro-molecules, Wannan Medical College, Wuhu 241002, China
- School of Pharmacy, Wannan Medical College, Wuhu 241002, China
| | - M Wan
- Department of Biochemistry and Molecular Biology, School of Basic Medicine, Wannan Medical College, Wuhu 241002, China
- Anhui Provincial Key Laboratory of Active Biological Macro-molecules, Wannan Medical College, Wuhu 241002, China
- School of Pharmacy, Wannan Medical College, Wuhu 241002, China
| | - Z Cheng
- Department of Biochemistry and Molecular Biology, School of Basic Medicine, Wannan Medical College, Wuhu 241002, China
- Anhui Provincial Key Laboratory of Active Biological Macro-molecules, Wannan Medical College, Wuhu 241002, China
- School of Clinical Medicine, Wannan Medical College, Wuhu 241002, China
| | - X Chen
- Department of Biochemistry and Molecular Biology, School of Basic Medicine, Wannan Medical College, Wuhu 241002, China
- Anhui Provincial Key Laboratory of Active Biological Macro-molecules, Wannan Medical College, Wuhu 241002, China
| | - Q Chen
- Department of Biochemistry and Molecular Biology, School of Basic Medicine, Wannan Medical College, Wuhu 241002, China
- Anhui Provincial Key Laboratory of Active Biological Macro-molecules, Wannan Medical College, Wuhu 241002, China
| | - Z Qi
- Department of Biochemistry and Molecular Biology, School of Basic Medicine, Wannan Medical College, Wuhu 241002, China
- Anhui Provincial Key Laboratory of Active Biological Macro-molecules, Wannan Medical College, Wuhu 241002, China
| |
Collapse
|
13
|
Gui T, Wei Y, Luo L, Li J, Zhong L, Yao L, Beier F, Nelson CL, Tsourkas A, Liu XS, Enomoto-Iwamoto M, Yu F, Cheng Z, Qin L. Activating EGFR Signaling Attenuates Osteoarthritis Development Following Loading Injury in Mice. J Bone Miner Res 2022; 37:2498-2511. [PMID: 36178273 PMCID: PMC10183199 DOI: 10.1002/jbmr.4717] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Revised: 09/08/2022] [Accepted: 09/22/2022] [Indexed: 01/21/2023]
Abstract
Posttraumatic osteoarthritis (PTOA) results in joint pain, loss of joint function, and impaired quality of daily life in patients with limited treatment options. We previously demonstrated that epidermal growth factor receptor (EGFR) signaling is essential for maintaining chondroprogenitors during articular cartilage development and homeostasis. Here, we used a nonsurgical, loading-induced PTOA mouse model to investigate the protective action of EGFR signaling. A single bout of cyclic tibial loading at a peak force of 6 N injured cartilage at the posterior aspect of lateral femoral condyle. Similar loading at a peak force of 9 N ruptured the anterior cruciate ligament, causing additional cartilage damage at the medial compartment and ectopic cartilage formation in meniscus and synovium. Constitutively overexpression of an EGFR ligand, heparin binding EGF-like growth factor (HBEGF), in chondrocytes significantly reduced cartilage injury length, synovitis, and pain after 6 N loading and mitigated medial side cartilage damage and ectopic cartilage formation after 9 N loading. Mechanistically, overactivation of EGFR signaling protected chondrocytes from loading-induced apoptosis and loss of proliferative ability and lubricant synthesis. Overexpressing HBEGF in adult cartilage starting right before 6 N loading had similar beneficial effects. In contrast, inactivating EGFR in adult cartilage led to accelerated PTOA progression with elevated cartilage Mankin score and synovitis score and increased ectopic cartilage formation. As a therapeutic approach, we constructed a nanoparticle conjugated with the EGFR ligand TGFα. Intra-articular injections of this nanoconstruct once every 3 weeks for 12 weeks partially mitigated PTOA symptoms in cartilage and synovium after 6 N loading. Our findings demonstrate the anabolic actions of EGFR signaling in maintaining articular cartilage during PTOA development and shed light on developing a novel nanomedicine for PTOA. © 2022 American Society for Bone and Mineral Research (ASBMR).
Collapse
Affiliation(s)
- Tao Gui
- Department of Orthopaedic Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
- Center for Joint Surgery and Sports Medicine, the First Affiliated Hospital, Jinan University, Guangzhou, China
| | - Yulong Wei
- Department of Orthopaedic Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Lijun Luo
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA, USA
- School of Agricultural Engineering, Jiangsu University, Zhenjiang, China
| | - Jun Li
- Department of Orthopaedic Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Leilei Zhong
- Department of Orthopaedic Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Lutian Yao
- Department of Orthopaedic Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Frank Beier
- Department of Physiology and Pharmacology, Schulich School of Medicine & Dentistry, University of Western Ontario, London, ON, Canada
| | - Charles L. Nelson
- Department of Orthopaedic Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Andrew Tsourkas
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA, USA
| | - X. Sherry Liu
- Department of Orthopaedic Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Motomi Enomoto-Iwamoto
- Department of Orthopaedics, School of Medicine, University of Maryland, Baltimore, MD, USA
| | - Feifan Yu
- AlphaThera, LLC, Philadelphia, PA, USA
| | - Zhiliang Cheng
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA, USA
| | - Ling Qin
- Department of Orthopaedic Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| |
Collapse
|
14
|
Xie X, Lu W, Qiu J, Cheng Z. Metabolic and Textural Changes in the Brain of Lung Cancer Patients: A Total-Body PET/CT Study. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.1492] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
15
|
Li C, Wan L, Wang N, Chen B, Luo F, Cheng Z, Zhang M. Photothermal Localization in an Optofluidic Microreactor for Rapid Pretreatment toward Online Pollutant Analysis. ACS Appl Mater Interfaces 2022; 14:40939-40950. [PMID: 36049235 DOI: 10.1021/acsami.2c10261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The realization of high-efficient digestion in a microfluidic reactor is considered to be advantageous for pretreatment toward online pollutant detection. However, it is difficult to achieve satisfactory device performance due to the gap between the low digestion reaction efficiency and the demand for rapid pretreatment for online detection. Herein, we design and manufacture an optofluidic microreactor combined with a MnO2 nanofilm localizing the heat inside the reaction chamber under solar irradiation, which contributes a lot to the on-chip nutrient digestion efficiency enhancement. The overall temperature of the water sample in the reactor chamber can be dramatically increased in a fleeting time of less than 1 s and maintained at 78 °C. The digestion rate constant of the microreactor is improved by about 100 times compared with that obtained by the traditional method in the national standard, which is attributed to temperature enhancement and various oxidation reactions in the heated reaction chamber. Notably, when pretreating the actual total phosphorus water samples, the digestion efficiency is demonstrated to be higher than 95% within 12 s under solar light irradiation. The optofluidic platform brings many benefits to accelerate the various photochemically enhanced reactions using solar light and is extremely adapted for rapid pretreatment of biochemical samples to further develop their online analysis.
Collapse
Affiliation(s)
- Chang Li
- National Engineering Research Center for Optical Fiber Sensing Technology and Network, Wuhan University of Technology, Wuhan 430070, China
| | - Liang Wan
- National Engineering Research Center for Optical Fiber Sensing Technology and Network, Wuhan University of Technology, Wuhan 430070, China
| | - Ning Wang
- National Engineering Research Center for Optical Fiber Sensing Technology and Network, Wuhan University of Technology, Wuhan 430070, China
| | - Bolei Chen
- Hubei Key Laboratory of Environmental and Health Effects of Persistent Toxic Substances, School of Environment and Health, Jianghan University, Wuhan 430056, China
| | - Fangzhou Luo
- National Engineering Research Center for Optical Fiber Sensing Technology and Network, Wuhan University of Technology, Wuhan 430070, China
| | - Zhiliang Cheng
- National Engineering Research Center for Optical Fiber Sensing Technology and Network, Wuhan University of Technology, Wuhan 430070, China
| | - Meng Zhang
- Hubei Key Laboratory of Environmental and Health Effects of Persistent Toxic Substances, School of Environment and Health, Jianghan University, Wuhan 430056, China
| |
Collapse
|
16
|
Zhu S, Cheng Z, Wu Z, Wang J. P04.01.B High impact of ITGB1 on Pi3K/AKT expression in medulloblastoma. Neuro Oncol 2022. [DOI: 10.1093/neuonc/noac174.116] [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: 11/13/2022] Open
Abstract
Abstract
Medulloblastoma, an embryonal tumor of the cerebellum, is one of the most frequent malignant brain tumors. Despite the increasing use of genetic variation in treatment stratification, high-risk patients characterized by light meningeal spread, TP53 mutations, or MYC amplification still have poor survival. Phosphatidylinositol-3-kinase (PI3K)/AKT/mammalian target of rapamycin (mTOR) signaling is one of the most important intracellular pathways, which can be considered as a master regulator for cancer. In tissue samples obtained from medulloblastoma patients, the significant upregulation of PI3K/AKT was associated with a lifting expression level of integrin β1(ITGB1). To understand the underlying mechanism, we investigated the effect of ITGB1 on the PI3K/AKT pathway in medulloblastoma cell lines. Transfection of this ITGB1 reduced proliferation and invasion of several medulloblastoma cell lines and inhibit epithelial-mesenchymal transition. In addition, knocking down ITGB1 expression can significantly inhibit the activation of PI3K/AKT signaling pathway. In conclusion, ITGB1 may selectively activation the pathophysiological effect of aberrant PI3K/AKT expression and serve as a targeted approach for medulloblastoma therapy.
Collapse
Affiliation(s)
- S Zhu
- State Key Laboratory of Oncology in South China, Collaborative Innovation , Guangzhou , China
| | - Z Cheng
- State Key Laboratory of Oncology in South China, Collaborative Innovation , Guangzhou , China
| | - Z Wu
- State Key Laboratory of Oncology in South China, Collaborative Innovation , Guangzhou , China
| | - J Wang
- State Key Laboratory of Oncology in South China, Collaborative Innovation , Guangzhou , China
| |
Collapse
|
17
|
Dai Y, Cheng Z, Faas M, Huo X. P10-01 Targeted lipidomics reveals polycyclic aromatic hydrocarbon exposure relates to oxylipin profile disorders and inflammatory response in children. Toxicol Lett 2022. [DOI: 10.1016/j.toxlet.2022.07.432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
|
18
|
Tian J, He F, Cheng Z, Zhang X, Yang C, Gao B, Xu Z, Tian Y. Aerobic Denitrification of Pseudomonas stutzeri yjy-10 and Genomic Analisis of This Process. APPL BIOCHEM MICRO+ 2022. [DOI: 10.1134/s0003683822030139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
19
|
Cheng Z, Tang X, Zhang H, Sun L. AB0096 MECHANISM OF SHIP IN NEUTROPHIL EXTRACELLULAR TRAP IN RHEUMATOID ARTHRITIS. Ann Rheum Dis 2022. [DOI: 10.1136/annrheumdis-2022-eular.4764] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BackgroundRheumatoid arthritis(RA) is a common autoimmune disease with unknown etiology. RA is characterized by the destruction of cartilage and bone. Neutrophils are abundant in synovial fluid of RA and are closely related to the development of RA 1。In recent years, it has been reported that neutrophils can release neutrophil extracellular traps(NET), which can not only kill different bacteria and viruses, but also closely related to autoimmune diseases 1,2 Studies have shown that NET is involved in the development of RA3. The Src homologous 2 domain containing inositol 5-phosphatase 1 (SHIP-1) controls the level of intracellular inositol 3-phosphate kinase product phosphatidylinositol-3,4,5-triphosphate. SHIP can be used as a positive or negative regulatory signal in different stimuli.And So has studied that the inflammation of CIA mouse model is reduced after SHIP is inhibited.ObjectivesTherefore, we want to study whether SHIP is involved in the formation of rheumatoid arthritis NET and its relationship with NET.MethodsWe isolated neutrophils from RA peripheral blood, stimulated NETosis with PMA, and detected the changes of NETosis in the group with SHIP inhibitor by flow cytometry and immunofluorescence. In addition, DBA mice were divided into three groups: HC, CIA and SHIP inhibitor intraperitoneal injection group. The degree of paw swelling and HE staining were used to detect the inflammation of mice, and the release of NET in CIA model was detected by flow cytometry.ResultsIn the DBA model, the generation of neutrophil extracellular traps decreased significantly in the intraperitoneal injection group of SHIP inhibitor. SHIP inhibitor can significantly inhibit the formation of NET in RA patients. In addition, we also found TNF- α Monoclonal antibodies reduced NETosis in RA patients, while SHIP inhibitors inhibited the generation of NET in RA patients. The results suggest that SHIP may inhibit the inflammatory factor TNF- α. In turn, it is involved in the release of NET in rheumatoid arthritisConclusionSHIP participates in the formation of NET in rheumatoid arthritis and affects the production of NET through pro-inflammatory cytokines. Therefore, SHIP is expected to become a new target for the treatment of RA.References[1]Skopelja-Gardner, S.; Jones, J. D.; Rigby, W. F. C. “NETtling” the Host: Breaking of Tolerance in Chronic Inflammation and Chronic Infection. J. Autoimmun.2018, 88, 1–10. https://doi.org/10.1016/j.jaut.2017.10.008.[2]Lee, K. H.; Kronbichler, A.; Park, D. D.-Y.; Park, Y.; Moon, H.; Kim, H.; Choi, J. H.; Choi, Y.; Shim, S.; Lyu, I. S.; Yun, B. H.; Han, Y.; Lee, D.; Lee, S. Y.; Yoo, B. H.; Lee, K. H.; Kim, T. L.; Kim, H.; Shim, J. S.; Nam, W.; So, H.; Choi, S.; Lee, S.; Shin, J. I. Neutrophil Extracellular Traps (NETs) in Autoimmune Diseases: A Comprehensive Review. Autoimmun. Rev.2017, 16 (11), 1160–1173. https://doi.org/10.1016/j.autrev.2017.09.012.[3]Khandpur, R.; Carmona-Rivera, C.; Vivekanandan-Giri, A.; Gizinski, A.; Yalavarthi, S.; Knight, J. S.; Friday, S.; Li, S.; Patel, R. M.; Subramanian, V.; Thompson, P.; Chen, P.; Fox, D. A.; Pennathur, S.; Kaplan, M. J. NETs Are a Source of Citrullinated Autoantigens and Stimulate Inflammatory Responses in Rheumatoid Arthritis. Sci. Transl. Med.2013, 5 (178), 178ra40-178ra40. https://doi.org/10.1126/scitranslmed.3005580.Disclosure of InterestsNone declared
Collapse
|
20
|
Luo F, Lei L, Cheng Z, Wan L, Zhao C, Niu K, Li C, Chen Q, Liu L, Wang N. Magnet-actuated microfluidic reactors with controllable Fe-based amorphous microspheres for tetracycline degradation. J Flow Chem 2022. [DOI: 10.1007/s41981-022-00227-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
|
21
|
Jacobs IJ, Cheng Z, Ralph D, O'Brien K, Flaman L, Howe J, Thompson D, Uitto J, Li Q, Sabbagh Y. INZ-701, a recombinant ENPP1 enzyme, prevents ectopic calcification in an Abcc6 -/- mouse model of pseudoxanthoma elasticum. Exp Dermatol 2022; 31:1095-1101. [PMID: 35511611 PMCID: PMC10077110 DOI: 10.1111/exd.14587] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Revised: 04/21/2022] [Accepted: 05/03/2022] [Indexed: 11/29/2022]
Abstract
Pseudoxanthoma elasticum (PXE), a heritable multisystem ectopic calcification disorder, is predominantly caused by inactivating mutations in ABCC6. The encoded protein, ABCC6, is a hepatic efflux transporter and a key regulator of extracellular inorganic pyrophosphate (PPi). Recent studies demonstrated that deficiency of plasma PPi, a potent endogenous calcification inhibitor, is the underlying cause of PXE. This study examined whether restoring plasma PPi levels by INZ-701, a recombinant human ENPP1 protein, the principal PPi-generating enzyme, prevents ectopic calcification in an Abcc6-/- mouse model of PXE. Abcc6-/- mice, at 6 weeks of age, the time of earliest stages of ectopic calcification, were injected subcutaneously with INZ-701 at 2 or 10 mg/kg for 2 or 8 weeks. INZ-701 at both doses increased steady-state plasma ENPP1 activity and PPi levels. In the 8-week treatment study, histopathologic examination and quantification of the calcium content in INZ-701-treated Abcc6-/- mice revealed significantly reduced calcification in the muzzle skin containing vibrissae, a biomarker of the calcification process in these mice. The extent of calcification corresponds to the local expression of two calcification inhibitors, osteopontin and fetuin-A. These results suggest that INZ-701 might provide a therapeutic approach for PXE, a disease with high unmet needs and no approved treatment.
Collapse
Affiliation(s)
- Ida Joely Jacobs
- Department of Dermatology and Cutaneous Biology, Sidney Kimmel Medical College, Jefferson Institute of Molecular Medicine, Thomas Jefferson University, Philadelphia, 19107, PA, USA.,PXE International Center of Excellence in Research and Clinical Care, Thomas Jefferson University, Philadelphia, 19107, PA, USA
| | | | - Douglas Ralph
- Department of Dermatology and Cutaneous Biology, Sidney Kimmel Medical College, Jefferson Institute of Molecular Medicine, Thomas Jefferson University, Philadelphia, 19107, PA, USA.,PXE International Center of Excellence in Research and Clinical Care, Thomas Jefferson University, Philadelphia, 19107, PA, USA.,Genetics, Genomics and Cancer Biology Ph.D. Program, Jefferson College of Life Sciences, Thomas Jefferson University, Philadelphia, 19107, PA, USA
| | | | | | | | | | - Jouni Uitto
- Department of Dermatology and Cutaneous Biology, Sidney Kimmel Medical College, Jefferson Institute of Molecular Medicine, Thomas Jefferson University, Philadelphia, 19107, PA, USA.,PXE International Center of Excellence in Research and Clinical Care, Thomas Jefferson University, Philadelphia, 19107, PA, USA
| | - Qiaoli Li
- Department of Dermatology and Cutaneous Biology, Sidney Kimmel Medical College, Jefferson Institute of Molecular Medicine, Thomas Jefferson University, Philadelphia, 19107, PA, USA.,PXE International Center of Excellence in Research and Clinical Care, Thomas Jefferson University, Philadelphia, 19107, PA, USA
| | | |
Collapse
|
22
|
Zhao K, Li C, Wan L, Luo F, Cheng Z, Duan J, Wang N. Optofluidic Platform for Rapid On-Chip Analysis of Total Phosphorus in Surface Water Using Absorption Spectrometry. Appl Spectrosc 2022; 76:599-608. [PMID: 35081753 DOI: 10.1177/00037028211069148] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Optofluidic devices are of high interest for online monitoring and analyzing biochemical targets in water by integrating the complex on-chip pretreatment of target analytes and spectral analysis. Compared with the traditional bulk equipment, versatile optical detection and biochemical analysis are more easily integrated on an optofluidic chip, which promotes the development of on-chip real-time rapid detection and monitoring. Here, we report an optofluidic platform for online monitoring total phosphorous in water by absorption spectrometry, which naturally combines the merits of both the photo-Fenton effect and microfluidics to realize the rapid on-chip digestion of phosphate at room temperature and normal pressure. The functional cells for chromogenic reaction and optical absorption detection are, respectively, fabricated on the platform to analyze the content of total phosphorus in surface water. In the experiment, the on-chip digestion time of phosphate is dramatically declined to 8.6 sec, and thus, the detection time is greatly shortened to a few minutes. The detection range of total phosphorus is demonstrated as 0.005-1.00 mg L-1, which satisfies the detection requirements of most environmental water samples. Its availability for measuring the total phosphorous in real water samples is also verified. Predictably, this platform is adapted to on-chip analysis of many other biochemical targets in water.
Collapse
Affiliation(s)
- Kun Zhao
- National Engineering Research Center of Fiber Optic Sensing Technology and Networks, 12565Wuhan University of Technology, Wuhan, China
| | - Chang Li
- National Engineering Research Center of Fiber Optic Sensing Technology and Networks, 12565Wuhan University of Technology, Wuhan, China
| | - Liang Wan
- National Engineering Research Center of Fiber Optic Sensing Technology and Networks, 12565Wuhan University of Technology, Wuhan, China
| | - Fangzhou Luo
- National Engineering Research Center of Fiber Optic Sensing Technology and Networks, 12565Wuhan University of Technology, Wuhan, China
| | - Zhiliang Cheng
- National Engineering Research Center of Fiber Optic Sensing Technology and Networks, 12565Wuhan University of Technology, Wuhan, China
| | - Jinge Duan
- National Engineering Research Center of Fiber Optic Sensing Technology and Networks, 12565Wuhan University of Technology, Wuhan, China
| | - Ning Wang
- National Engineering Research Center of Fiber Optic Sensing Technology and Networks, 12565Wuhan University of Technology, Wuhan, China
| |
Collapse
|
23
|
Gui T, Luo L, Chhay B, Zhong L, Wei Y, Yao L, Yu W, Li J, Nelson CL, Tsourkas A, Qin L, Cheng Z. Superoxide dismutase-loaded porous polymersomes as highly efficient antioxidant nanoparticles targeting synovium for osteoarthritis therapy. Biomaterials 2022; 283:121437. [PMID: 35247635 PMCID: PMC8977249 DOI: 10.1016/j.biomaterials.2022.121437] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Revised: 02/04/2022] [Accepted: 02/20/2022] [Indexed: 12/15/2022]
Abstract
Oxidative stress and the reactive oxygen species (ROS) have important roles in osteoarthritis (OA) development and progression. Scavenging ROS by exogenous antioxidant enzymes could be a promising approach for OA treatment. However, the direct use of antioxidant enzymes, such as superoxide dismutase (SOD), is challenging due to a lack of effective drug delivery system to knee joints. This study utilized a highly efficient antioxidative nanoparticle based on SOD-loaded porous polymersome nanoparticles (SOD-NPs) for delivery of SOD to mouse knee joints. The resultant SOD-NPs had prolonged mouse joint retention time with predominant accumulation in synovium but not in articular cartilage. Examining human synovial explants revealed that SOD-NPs minimize oxidative damages induced by OA-like insults. Intra-articular injections of SOD-NPs in mice receiving OA surgery were effective in attenuating OA initiation and preventing its further progression. Mechanistically, SOD-NPs reduced ROS production and the synthesis of catabolic proteases in both articular cartilage and synovium. Hence, our work demonstrates the therapeutic potential of SOD-NPs and indicate that targeting synovium holds a great promise for OA therapy.
Collapse
Affiliation(s)
- Tao Gui
- Department of Orthopaedic Surgery, University of Pennsylvania, Philadelphia, PA, 19104, USA; Center for Joint Surgery and Sports Medicine, The First Affiliated Hospital, Jinan University, Guangzhou, China
| | - Lijun Luo
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA, 19104, USA; School of Agricultural Engineering, Jiangsu University, Jiangsu, China
| | - Bonirath Chhay
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Leilei Zhong
- Department of Orthopaedic Surgery, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Yulong Wei
- Department of Orthopaedic Surgery, University of Pennsylvania, Philadelphia, PA, 19104, USA; Department of Bioengineering, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Lutian Yao
- Department of Orthopaedic Surgery, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Wei Yu
- Department of Orthopaedic Surgery, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Jun Li
- Department of Orthopaedic Surgery, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Charles L Nelson
- Department of Orthopaedic Surgery, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Andrew Tsourkas
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Ling Qin
- Department of Orthopaedic Surgery, University of Pennsylvania, Philadelphia, PA, 19104, USA.
| | - Zhiliang Cheng
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA, 19104, USA.
| |
Collapse
|
24
|
Peng X, Yao Y, Jiang X, Zhou X, Li C, Cheng Z. Linfoma difuso de células B grandes detectado mediante PET/TC Al 18F-NOTA-FAPI-04. Rev Esp Med Nucl Imagen Mol 2022. [DOI: 10.1016/j.remn.2021.03.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
25
|
Jiang Z, Cheng Z, Yan C, Zhang X, Tian Y, Zhang X, Quan X. Simultaneous Removal of Nitrogen and Refractory Organics from a Biologically Treated Leachate by Pulse Electrochemical Oxidation in a Multi-channel Flow Reactor. ACS Omega 2021; 6:25539-25550. [PMID: 34632211 PMCID: PMC8495886 DOI: 10.1021/acsomega.1c03567] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Accepted: 09/14/2021] [Indexed: 06/13/2023]
Abstract
Electrochemical oxidation (EO) is often used in the advanced treatment of refractory wastewater. However, in a conventional EO process of direct-current (DC) power supply, oxide layers often form on the anodes, which not only hinder the oxidation reaction on them but also cause higher energy consumption. In this paper, a biologically treated leachate (BTL) of municipal solid waste (MSW) was comparably treated by EO with DC (DC-EO), monopulse (MP-EO), and double pulse (DP-EO) power source models in a home-made multi-channel flow reactor. The effects of process parameters of current density (I A), superficial liquid velocity (U L), pulse frequency (f P), duty ratio (R D), and so forth on the removal efficiency of chemical oxygen demand (COD) (RECOD), total organic carbon (TOC) (RETOC), and total nitrogen (TN) (RETN) were investigated simultaneously. Average energy consumption () and organic composition of the treated effluent of DC-EO and MP-EO were also compared comprehensively, and a new mechanism of MP-EO has been proposed accordingly. Under optimal conditions, 2 L of BTL was treated by MP-EO for 180 min, and the RECOD, RETOC, and RETN could reach as high as 80, 30, and 80%, respectively. Compared with DC-EO, the of MP-EO is reduced by 69.27%. Besides, the kinds of organic matter in the treated effluent of MP-EO are reduced from 53 in the BTL to 11, which is much less than in the DC-EO process of 29 kinds. Therefore, the MP-EO process exhibits excellent removal performance of organics and TN and economic prospects in the treatment of refractory organic wastewater.
Collapse
Affiliation(s)
- Zhanghao Jiang
- School
of Chemistry and Chemical Engineering, Chongqing
University of Technology, Chongqing 400054, China
| | - Zhiliang Cheng
- School
of Chemistry and Chemical Engineering, Chongqing
University of Technology, Chongqing 400054, China
- Engineering
Research Center for Waste Oil Recovery Technology and Equipment, Ministry
of Education, Chongqing Technology and Business
University, Chongqing 400067, China
| | - Chaoqun Yan
- School
of Chemistry and Chemical Engineering, Chongqing
University of Technology, Chongqing 400054, China
| | - Xuan Zhang
- School
of Chemistry and Chemical Engineering, Chongqing
University of Technology, Chongqing 400054, China
| | - Yijuan Tian
- School
of Chemistry and Chemical Engineering, Chongqing
University of Technology, Chongqing 400054, China
| | - Xianming Zhang
- Engineering
Research Center for Waste Oil Recovery Technology and Equipment, Ministry
of Education, Chongqing Technology and Business
University, Chongqing 400067, China
| | - Xuejun Quan
- School
of Chemistry and Chemical Engineering, Chongqing
University of Technology, Chongqing 400054, China
| |
Collapse
|
26
|
Bromley BP, Cheng Z, Nava Dominguez A, Colton AV. Sensitivity Studies to Assess the Impact of Geometry and Operating/Boundary Condition Perturbations on Thermal-Hydraulic Behavior of Advanced Fuel Channels in Pressure Tube Heavy Water Reactors with Uranium and Thorium-Based Fuels. NUCL TECHNOL 2021. [DOI: 10.1080/00295450.2020.1827658] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- B. P. Bromley
- Canadian Nuclear Laboratories, 286 Plant Road, Chalk River, Ontario K0J 1J0, Canada
| | - Z. Cheng
- Canadian Nuclear Laboratories, 286 Plant Road, Chalk River, Ontario K0J 1J0, Canada
| | - A. Nava Dominguez
- Canadian Nuclear Laboratories, 286 Plant Road, Chalk River, Ontario K0J 1J0, Canada
| | - A. V. Colton
- Canadian Nuclear Laboratories, 286 Plant Road, Chalk River, Ontario K0J 1J0, Canada
| |
Collapse
|
27
|
Liu T, Olajide T, Wang W, Cheng Z, Cheng Q, Weng X. Quality detection of tea oil by 19F NMR and 1H NMR. grasasaceites 2021. [DOI: 10.3989/gya.0662201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
The nuclear magnetic resonance (NMR) technique was applied to monitor the quality of tea oil herein. The adulteration of virgin tea oil was monitored by 19F NMR and 1H NMR. The 19F NMR technique was used as a new method to detect the changes in quality and hydroperoxide value of tea oil. The research demonstrates that 19F NMR and 1H NMR can quickly detect adulteration in tea oil. High temperature caused a decrease in the ratio D and increase in the total diglyceride content. Some new peaks belonging to the derivatives of hydroperoxides appeared at δ-108.21 and δ-109.05 ppm on the 19F NMR spectrum when the oil was autoxidized and became larger when the hydroperoxide value increased. These results have great significance in monitoring the moisture content, freshness and oxidation status of oils and in detecting adulteration in high priced edible oils by mixing with cheap oils.
Collapse
|
28
|
Wang Z, Yang F, Ma H, Cheng Z, Zhang W, Xiong K, Shen T, Yang S. Bifocal 532/1064 nm alternately illuminated photoacoustic microscopy for capturing deep vascular morphology in human skin. J Eur Acad Dermatol Venereol 2021; 36:51-59. [PMID: 34547120 DOI: 10.1111/jdv.17677] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Accepted: 08/26/2021] [Indexed: 12/26/2022]
Abstract
BACKGROUND As a promising technology, photoacoustic microscopy (PAM) plays a critical role in diagnosis and assessment of dermatological conditions by providing subtle vascular networks non-invasively. However, the established PAMs are insufficient for clinical dermatology when faced with complex structures of human skin instead of animal models owing to high melanin content and superimposed vasculature for Asians, which cannot balance the spatial resolution and the imaging depth. OBJECTIVES To evaluate the ability of bifocal 532/1064-nm alternately illuminated photoacoustic microscopy (BF-PAM) to non-invasively reveal the morphological structure of human skin for improving the diagnosis and therapeutic efficacy of skin diseases. METHODS A BF-PAM was developed to capture biopsy-like information of human skin from epidermis to hypodermis. The optical foci of the two excitation beams are staggered in the axial direction to form an extended depth-of-field, which can maintain the lateral resolution and the contrast of PA image. RESULTS The imaging capability of the BF-PAM was demonstrated by depicting the vascular morphology of multilayered skin with imaging depth of ˜3 mm. Furtherly, vascular malformations in port-wine stains skin were quantitatively assessed without the need for any contrast agent, and the distribution, depth and diameter of the ectatic vessels can determine an optimal treatment protocol for port-wine stains lesions. CONCLUSIONS The quantitative vascular morphology in the dermis can be used to accurately assess vascular characteristics, in which case it enables clinicians to determine optimum treatment parameters in individual patients. As a non-invasive imaging technique, BF-PAM holds great potential to provide objective assessment to enhance the therapeutic efficacy. ETHICAL STATEMENT The study was conducted in accordance with the Declaration of Helsinki (as revised in 2013). The study was approved by the Chinese Ethics Committee of Registering Clinical Trials (ChiECRCT20200184) and registered with Chinese Clinical Trial Registry (ChiCTR2000034400). Before skin imaging, written informed consent was taken from all individual participants.
Collapse
Affiliation(s)
- Z Wang
- MOE Key Laboratory of Laser Life Science and Institute of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou, China
| | - F Yang
- MOE Key Laboratory of Laser Life Science and Institute of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou, China
| | - H Ma
- MOE Key Laboratory of Laser Life Science and Institute of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou, China
| | - Z Cheng
- MOE Key Laboratory of Laser Life Science and Institute of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou, China
| | - W Zhang
- MOE Key Laboratory of Laser Life Science and Institute of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou, China
| | - K Xiong
- MOE Key Laboratory of Laser Life Science and Institute of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou, China
| | - T Shen
- Department of Plastic and Aesthetic Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - S Yang
- MOE Key Laboratory of Laser Life Science and Institute of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou, China
| |
Collapse
|
29
|
Amin B, Atif MJ, Wang X, Meng H, Ghani MI, Ali M, Ding Y, Li X, Cheng Z. Effect of low temperature and high humidity stress on physiology of cucumber at different leaf stages. Plant Biol (Stuttg) 2021; 23:785-796. [PMID: 33900017 DOI: 10.1111/plb.13276] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Accepted: 04/18/2021] [Indexed: 06/12/2023]
Abstract
Low temperature (LT) and high humidity (HH) are important environmental factors in greenhouses and plastic tunnels during the cold season, as they hamper plant growth and development. Here, we studied the effect of LT (day/night: 9/5 °C, 25/18 °C as control) and HH (95%, 80% as control) on young cucumber plants at the 2, 4 or 6 leaf stages. LT+HH stress resulted in a decline in shoot, root and total fresh and dry weights, and decreased Pn , gs , Tr , Fv /Fm , qP, ETR and chlorophyll, and increased MDA, H2 O2 , O2 - , NPQ and Ci as compared to the control at the 2 leaf stage. SOD, POD, CAT, APX and GR were upregulated under LT+HH stress as compared to the control at the 6 leaf stage. ABA and JA increased under LT+HH stress as compared to the control at the 6 leaf stage, while IAA and GA decreased under LT+HH stress as compared to the control at the 2 leaf stage. Our results show that LT+HH stress affects young cucumber plant photosynthetic efficiency, PSII activity, antioxidant defence system, ROS and hormone profile. Plants at the 6 leaf stage were more tolerant than at the 2 and 4 leaf stages under stress conditions.
Collapse
Affiliation(s)
- B Amin
- College of Horticulture, Northwest A&F University, Yangling, 71210, China
| | - M J Atif
- College of Horticulture, Northwest A&F University, Yangling, 71210, China
- Horticultural Research Institute, National Agricultural Research Centre, Islamabad, 44000, Pakistan
| | - X Wang
- College of Horticulture, Northwest A&F University, Yangling, 71210, China
| | - H Meng
- College of Horticulture, Northwest A&F University, Yangling, 71210, China
| | - M I Ghani
- College of Horticulture, Northwest A&F University, Yangling, 71210, China
| | - M Ali
- College of Horticulture, Northwest A&F University, Yangling, 71210, China
| | - Y Ding
- College of Horticulture, Northwest A&F University, Yangling, 71210, China
| | - X Li
- Tianjin Kerun Cucumber Research Institute, Tianjin, 300192, China
| | - Z Cheng
- College of Horticulture, Northwest A&F University, Yangling, 71210, China
| |
Collapse
|
30
|
Cheng Z, O'Brien K, Howe J, Sullivan C, Schrier D, Lynch A, Jungles S, Sabbagh Y, Thompson D. INZ-701 Prevents Ectopic Tissue Calcification and Restores Bone Architecture and Growth in ENPP1-Deficient Mice. J Bone Miner Res 2021; 36:1594-1604. [PMID: 33900645 DOI: 10.1002/jbmr.4315] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [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] [Received: 12/20/2020] [Revised: 04/08/2021] [Accepted: 04/17/2021] [Indexed: 12/20/2022]
Abstract
Ectonucleotide pyrophosphatase/phosphodiesterase 1 (ENPP1) is the major enzyme that cleaves extracellular adenosine triphosphate (ATP) to generate pyrophosphate (PPi), an inorganic metabolite with potent anticalcification activity. Loss-of-function mutations cause hypopyrophosphatemia and lead to a state of ENPP1 deficiency, which has an acute infantile phase known as generalized arterial calcification of infancy (GACI) and a pediatric to adult phase known as autosomal-recessive hypophosphatemic rickets type 2 (ARHR2). ENPP1 deficiency manifests as ectopic calcification of multiple tissues, neointimal proliferation, premature mortality, impaired growth, and bone deformities. INZ-701, a human ENPP1-Fc protein, is in clinical development as an enzyme replacement therapy for the treatment of ENPP1 deficiency. The pharmacokinetic and pharmacodynamic profile and therapeutic effect of INZ-701 were investigated in Enpp1asj/asj mice, a murine model of ENPP1 deficiency. Enpp1asj/asj mice have undetectable plasma PPi, lower plasma phosphate, and higher FGF23 levels compared with wild-type (WT) mice. Enpp1asj/asj mice on the acceleration diet, containing high phosphate and low magnesium, quickly develop clinical signs, including dehydration, rough hair coat, pinned ears, stiffed legs, and hunched back. Enpp1asj/asj mice treated with vehicle had aforementioned clinical signs plus severe ectopic calcification in multiple tissues and bone defects, characteristics of the clinical phenotype observed in GACI and ARHR2 patients. Our results showed a durable PPi response for more than 3 days after a single dose of INZ-701. Treatment of ENPP1-deficient mice every other day with INZ-701 for 8 weeks restored circulating levels of PPi, prevented pathological calcification in all the tested organs, restored growth parameters, corrected bone defects, improved clinical signs, and decreased mortality in Enpp1asj/asj mice, demonstrating the potential of INZ-701 to treat ENPP1 deficiency. © 2021 American Society for Bone and Mineral Research (ASBMR).
Collapse
|
31
|
Wei Y, Luo L, Gui T, Yu F, Yan L, Yao L, Zhong L, Yu W, Han B, Patel JM, Liu JF, Beier F, Levin LS, Nelson C, Shao Z, Han L, Mauck RL, Tsourkas A, Ahn J, Cheng Z, Qin L. Targeting cartilage EGFR pathway for osteoarthritis treatment. Sci Transl Med 2021; 13:13/576/eabb3946. [PMID: 33441426 DOI: 10.1126/scitranslmed.abb3946] [Citation(s) in RCA: 63] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Accepted: 11/23/2020] [Indexed: 12/19/2022]
Abstract
Osteoarthritis (OA) is a widespread joint disease for which there are no disease-modifying treatments. Previously, we found that mice with cartilage-specific epidermal growth factor receptor (EGFR) deficiency developed accelerated knee OA. To test whether the EGFR pathway can be targeted as a potential OA therapy, we constructed two cartilage-specific EGFR overactivation models in mice by overexpressing heparin binding EGF-like growth factor (HBEGF), an EGFR ligand. Compared to wild type, Col2-Cre HBEGF-overexpressing mice had persistently enlarged articular cartilage from adolescence, due to an expanded pool of chondroprogenitors with elevated proliferation ability, survival rate, and lubricant production. Adult Col2-Cre HBEGF-overexpressing mice and Aggrecan-CreER HBEGF-overexpressing mice were resistant to cartilage degeneration and other signs of OA after surgical destabilization of the medial meniscus (DMM). Treating mice with gefitinib, an EGFR inhibitor, abolished the protective action against OA in HBEGF-overexpressing mice. Polymeric micellar nanoparticles (NPs) conjugated with transforming growth factor-α (TGFα), a potent EGFR ligand, were stable and nontoxic and had long joint retention, high cartilage uptake, and penetration capabilities. Intra-articular delivery of TGFα-NPs effectively attenuated surgery-induced OA cartilage degeneration, subchondral bone plate sclerosis, and joint pain. Genetic or pharmacologic activation of EGFR revealed no obvious side effects in knee joints and major vital organs in mice. Together, our studies demonstrate the feasibility of using nanotechnology to target EGFR signaling for OA treatment.
Collapse
Affiliation(s)
- Yulong Wei
- Department of Orthopaedic Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA.,Department of Bioengineering, School of Engineering and Applied Science, University of Pennsylvania, Philadelphia, PA 19104, USA.,Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Lijun Luo
- Department of Bioengineering, School of Engineering and Applied Science, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Tao Gui
- Department of Orthopaedic Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Feifan Yu
- Alphathera LLC, Philadelphia, PA 19146, USA
| | - Lesan Yan
- Department of Bioengineering, School of Engineering and Applied Science, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Lutian Yao
- Department of Orthopaedic Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Leilei Zhong
- Department of Orthopaedic Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Wei Yu
- Department of Orthopaedic Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA.,Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Biao Han
- School of Biomedical Engineering, Science and Health Systems, Drexel University, Philadelphia, PA 19104, USA
| | - Jay M Patel
- Department of Orthopaedic Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA.,Translational Musculoskeletal Research Center, Corporal Michael J. Crescenz VA Medical Center, Philadelphia, PA 19104, USA
| | - Jessica F Liu
- Department of Bioengineering, School of Engineering and Applied Science, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Frank Beier
- Department of Physiology and Pharmacology, Schulich School of Medicine and Dentistry, University of Western Ontario, London, Ontario N6A 5C1, Canada
| | - Lawrence Scott Levin
- Department of Orthopaedic Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Charles Nelson
- Department of Orthopaedic Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Zengwu Shao
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Lin Han
- School of Biomedical Engineering, Science and Health Systems, Drexel University, Philadelphia, PA 19104, USA
| | - Robert L Mauck
- Department of Orthopaedic Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA.,Department of Bioengineering, School of Engineering and Applied Science, University of Pennsylvania, Philadelphia, PA 19104, USA.,Translational Musculoskeletal Research Center, Corporal Michael J. Crescenz VA Medical Center, Philadelphia, PA 19104, USA
| | - Andrew Tsourkas
- Department of Bioengineering, School of Engineering and Applied Science, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Jaimo Ahn
- Department of Orthopaedic Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA.,Department of Orthopaedic Surgery, University of Michigan, Ann Arbor, MI 48104, USA
| | - Zhiliang Cheng
- Department of Bioengineering, School of Engineering and Applied Science, University of Pennsylvania, Philadelphia, PA 19104, USA.
| | - Ling Qin
- Department of Orthopaedic Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA.
| |
Collapse
|
32
|
Yan C, Tian Y, Cheng Z, Wei Z, Zhang X, Quan X. Simultaneous Desalination and Removal of Recalcitrant Organics from Reverse Osmosis Leachate Concentrate by Electrochemical Oxidation. ACS Omega 2021; 6:16049-16057. [PMID: 34179650 PMCID: PMC8223443 DOI: 10.1021/acsomega.1c01916] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2021] [Accepted: 06/01/2021] [Indexed: 05/04/2023]
Abstract
Reverse osmosis (RO) concentrate produced in the municipal solid waste (MSW) leachate treatment process is extremely hard to be treated because of its high color, high salt content, and high concentration of recalcitrant organic compounds. A new multichannel flow reactor with electrode gaps of 5 mm was designed to desalinate and remove organics simultaneously from the RO leachate concentrate (ROLC) by electrochemical oxidation process using the RuO2/IrO2-coated titanium plate (RuO2/IrO2-Ti) as the anodes. The effects of the process parameters of current density (I A), superficial circulating velocity (U L), etc. on the removal efficiency (RE) of the chemical oxygen demand (COD) and average energy consumption () were investigated. The results illustrated that after 3 h of treatment, the RE of COD, Cl-, and color could reach as high as 96.5, 96.7, and 99.6%, respectively. Besides, the of the electrochemical oxidation treatment process is as low as 40.98 kWh/(kg COD), and a new mechanism of the simultaneous removal of COD and desalination has been proposed. This work provides an alternative technology for the treatment of MSW leachate RO concentrate.
Collapse
Affiliation(s)
- Chaoqun Yan
- School
of Chemistry and Chemical Engineering, Chongqing
University of Technology, Chongqing 400054, China
| | - Yijuan Tian
- School
of Chemistry and Chemical Engineering, Chongqing
University of Technology, Chongqing 400054, China
| | - Zhiliang Cheng
- School
of Chemistry and Chemical Engineering, Chongqing
University of Technology, Chongqing 400054, China
| | - Zejun Wei
- Chongqing
Academy of Science and Technology, Chongqing 401121, China
| | - Xuan Zhang
- School
of Chemistry and Chemical Engineering, Chongqing
University of Technology, Chongqing 400054, China
| | - Xuejun Quan
- School
of Chemistry and Chemical Engineering, Chongqing
University of Technology, Chongqing 400054, China
| |
Collapse
|
33
|
Cheng Z, Wylie A, Ferris C, Ingvartsen KL, Wathes DC. Effect of diet and nonesterified fatty acid levels on global transcriptomic profiles in circulating peripheral blood mononuclear cells in early lactation dairy cows. J Dairy Sci 2021; 104:10059-10075. [PMID: 34147225 DOI: 10.3168/jds.2021-20136] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Accepted: 04/30/2021] [Indexed: 12/20/2022]
Abstract
After calving, lipid mobilization caused by increased nutrient demands for lactation leads to elevated circulating concentrations of nonesterified fatty acids (NEFA). Excessive NEFA levels have previously been identified as a major risk factor for postpartum immunosuppression. The aim of this study was to investigate changes in global transcriptomic gene expression of peripheral blood mononuclear cells (PBMC) in dairy cows offered different early lactation diets (high concentrate, n = 7; medium, n = 8; or low, n = 9) and with differing circulating levels of NEFA. Cows were classified as having NEFA concentrations of either <500 µM (low, n = 6), 500 to 750 µM (medium, n = 8) or >750 µM (high, n = 10) at 14 d in milk. Plasma urea concentrations were greater for cows on the high concentrate diet but β-hydroxybutyrate and glucose concentrations did not differ significantly between either dietary treatments or NEFA groups. Cows with high NEFA weighed more at drying off and suffered greater body condition score loss after calving. The PBMC were isolated at 14 d in milk, and RNA was extracted for RNA sequencing. Differential gene expression was analyzed with DESeq2 with q-value for false discovery rate control followed by Gene Ontology Enrichment. Although there were no differentially expressed genes associated with lactation diet, 304 differentially expressed genes were identified between cows with high and low circulating NEFA, with 118 upregulated and 186 downregulated. Gene Ontology enrichment analysis demonstrated that biological adhesion and immune system process were foremost among various PBMC functions which were altered relating to body defenses and immunity. High NEFA concentrations were associated with inhibited cellular adhesion function by downregulating 20 out of 26 genes (by up to 17-fold) related to this process. Medium NEFA concentrations altered a similar set of functions as high NEFA, but with smaller enrichment scores. Localization and immune system process were most significant, with biological adhesion ranking only eleventh. Our results demonstrated that increased circulating NEFA concentrations, but not diet, were associated with immune system processes in PBMC in early lactation cows. Leukocyte cell-to-cell adhesion was inhibited when the NEFA concentration exceeded 750 µM, which would reduce the efficiency of diapedesis and so contribute to decreased body defense mechanisms and predispose animals to infection.
Collapse
Affiliation(s)
- Z Cheng
- Royal Veterinary College, Hatfield, Herts AL9 7TA, United Kingdom.
| | - A Wylie
- Agri-Food and Biosciences Institute, Newforge Lane, Upper Malone Road, Belfast BT9 5PX, United Kingdom
| | - C Ferris
- Agri-Food and Biosciences Institute, Newforge Lane, Upper Malone Road, Belfast BT9 5PX, United Kingdom
| | - K L Ingvartsen
- Department of Animal Science, Aarhus University, DK-8830 Tjele, Denmark
| | - D C Wathes
- Royal Veterinary College, Hatfield, Herts AL9 7TA, United Kingdom
| | | |
Collapse
|
34
|
Cheng C, Huang X, Cheng W, Quan X, Cheng Z, Jiang L, Yang L. Ozonation of biologically-treated municipal solid waste leachate using an integrated process of O 3/Ca(OH) 2 and microbubble reactor. Environ Technol 2021; 42:2402-2412. [PMID: 31813333 DOI: 10.1080/09593330.2019.1703143] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 07/31/2019] [Accepted: 11/30/2019] [Indexed: 06/10/2023]
Abstract
The ozonation process was limited by the relatively low solubility in liquid and low transfer mass efficiency. In this work, O3/Ca(OH)2 was adopted to treat biologically-treated municipal solid waste (MSW) leachate in a microbubble gas-liquid reactor. The residual COD concentration is meeting the discharge standard after treatment. The effects of operating parameters such as Ca(OH)2 dosage, external reactor pressure, liquid temperature, inlet ozone concentration and ozone flow rate on COD removal and mineralization (TOC removal) were studied systematically. This process was able to remove 89.86% of COD, 65.35% of TOC and 92.12% of UV-254 under the optimal conditions. And the intensification mechanism of O3/Ca(OH)2 system was explored through analysing the change of UV-254, 3D-EEM and the organic matters present in the leachate.
Collapse
Affiliation(s)
- Chen Cheng
- College of Chemistry and Chemical Engineering, Chongqing University of Technology, Chongqing, People's Republic of China
| | - Xiaoxue Huang
- College of Chemistry and Chemical Engineering, Chongqing University of Technology, Chongqing, People's Republic of China
| | - Wen Cheng
- College of Chemistry and Chemical Engineering, Chongqing University of Technology, Chongqing, People's Republic of China
| | - Xuejun Quan
- College of Chemistry and Chemical Engineering, Chongqing University of Technology, Chongqing, People's Republic of China
| | - Zhiliang Cheng
- College of Chemistry and Chemical Engineering, Chongqing University of Technology, Chongqing, People's Republic of China
| | - Li Jiang
- Chongqing College of Electronic Engineering, Chongqing, People's Republic of China
| | - Lu Yang
- Chongqing Municipal Solid Waste Resource Utilization & Treatment Collaborative Innovation Center, Chongqing, People's Republic of China
| |
Collapse
|
35
|
Cheng Z, Wei R, Cao N, Li Z, Li M, Liu M, Zhu L, Xia C. Identification of hepatosensitive region and their neural connections in the hippocampus of rats. Folia Morphol (Warsz) 2021; 81:261-270. [PMID: 33634834 DOI: 10.5603/fm.a2021.0020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Accepted: 02/01/2021] [Indexed: 11/25/2022]
Abstract
BACKGROUND Visceral function localization of the brain is very complex. For many years, people have been actively exploring the neural mechanism regulating visceral and substance metabolism, clarifying the complex relationship between the brain and peripheral nervous system related to the regulation of visceral activity, and analyzing its complex neural pathways. The brain is the advanced center of visceral function regulation. As an advanced center for substance metabolism and visceral regulation, the hippocampus is crucial for regulating visceral function. The liver is the core organ of material metabolism, and its afferent signals are mainly projected to the Nucleus of the solitary tract(NTS) through vagus nerve, and then they are projected to the hypothalamus and limbic system. MATERIALS AND METHODS We placed a stereotaxic instrument on the head of each rat and performed craniotomy to open a window above the left hippocampus. We used gold-plated tungsten electrodes to monitor hippocampal neuronal discharges. Grounding was achieved using screws and silver wire. We electrically stimulated the liver branch of the vagus nerve and observed changes in hippocampal neuron discharges using a biological method; in this way, we identified hepatosensitive hippocampal region. We injected FluoroGold into this region and related brain areas. After 3 days, the rats were sacrificed and perfused; the hippocampi were fixed, dehydated, frozen, sectioned, and subjected to fluorescence microscopy. RESULTS Nerve discharge frequency and amplitude significantly increased in the hippocampal CA3 region (AP: -4.9, ML: -5.1, DV: -5.0 mm). After FluoroGold was injected into the left hepatosensitive region in the hippocampus, labeled cells were found in the contralateral hippocampus, ipsilateral piriform cortex (PC), locus coeruleus (LC) and bilateral lateral hypothalamus (LHA); fluorescence in the ipsilateral hypothalamus was stronger than that of the contralateral hypothalamus. FluoroGold was injected into the LHA, PC, and LC; no labeled cells were found in the hippocampal CA3 region or in the control group. CONCLUSIONS The hippocampal CA3 area of rats may contain a hepatosensitive region that plays important roles in the regulation of liver and other organ function. These region may receive input from the LHA, PC, and LC.
Collapse
Affiliation(s)
- Z Cheng
- Department of Human Anatomy, Basic Medical College of Guilin Medical University, China.,Department of Anatomy, Basic Medical Department of Henan Vocational College of Nursing, China
| | - R Wei
- College of Biotechnology, Guilin Medical University, China
| | - N Cao
- Department of Human Anatomy, Basic Medical College of Guilin Medical University, China
| | - Z Li
- Department of Human Anatomy, Basic Medical College of Guilin Medical University, China
| | - M Li
- Department of Human Anatomy, Basic Medical College of Guilin Medical University, China
| | - M Liu
- Affiliated Hospital of Guilin Medical University, China
| | - L Zhu
- Affiliated Hospital of Guilin Medical University, China
| | - C Xia
- Department of Human Anatomy, Basic Medical College of Guilin Medical University, China.
| |
Collapse
|
36
|
Jacobs J, Li Q, Cheng Z, O'Brien K, Thompson D, Uitto J, Sabbagh Y. 167 INZ-701 prevents ectopic mineralization in an Abcc6 mouse model of pseudoxanthoma elasticum. J Invest Dermatol 2021. [DOI: 10.1016/j.jid.2021.02.187] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
37
|
Xiong P, He S, Qiu F, Cheng Z, Quan X, Zhang X, Li W. Experimental and mathematical study on jet atomization and flash evaporation characteristics of droplets in a depressurized environment. J Taiwan Inst Chem Eng 2021. [DOI: 10.1016/j.jtice.2021.05.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
38
|
Wathes DC, Cheng Z, Salavati M, Buggiotti L, Takeda H, Tang L, Becker F, Ingvartsen KL, Ferris C, Hostens M, Crowe MA. Corrigendum to "Relationships between metabolic profiles and gene expression in liver and leukocytes of dairy cows in early lactation" (J. Dairy Sci. 104:3596-3616). J Dairy Sci 2021; 104:6327. [PMID: 33888222 DOI: 10.3168/jds.2021-104-5-6327] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|
39
|
Altshuler PJ, Schiazza AR, Luo L, Helmers MR, Chhay B, Han JJ, Hu R, Herbst DA, Tsourkas A, Cheng Z, Atluri P. Superoxide Dismutase-Loaded Nanoparticles Attenuate Myocardial Ischemia-Reperfusion Injury and Protect Against Chronic Adverse Ventricular Remodeling. Adv Ther (Weinh) 2021; 4. [PMID: 34179348 DOI: 10.1002/adtp.202100036] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Early revascularization is critical to reduce morbidity after myocardial infarction, although reperfusion incites additional oxidative injury. Superoxide dismutase (SOD) is an antioxidant that scavenges reactive oxygen species (ROS) but has low endogenous expression and rapid myocardial washout when administered exogenously. This study utilizes a novel nanoparticle carrier to improve exogeneous SOD retention while preserving enzyme function. Its role is assessed in preserving cardiac function after myocardial ischemia-reperfusion (I/R) injury. Here, nanoparticle-encapsulated SOD (NP-SOD) exhibits similar enzyme activity as free SOD, measured by ferricytochrome-c assay. In an in vitro I/R model, free and NP-SOD reduce active ROS, preserve mitochondrial integrity and improve cell viability compared to controls. In a rat in vivo I/R injury model, NP-encapsulation of fluorescent-tagged SOD improves intramyocardial retention after direct injection. Intramyocardial NP-SOD administration in vivo improves left ventricular contractility at 3-hours post-reperfusion by echocardiography and 4-weeks by echocardiography and invasive pressure-volume catheter analysis. These findings suggest that NP-SOD mitigates ROS damage in cardiac I/R injury in vitro and maximizes retention in vivo. NP-SOD further attenuates acute injury and protects against myocyte loss and chronic adverse ventricular remodeling, demonstrating potential for translating NP-SOD as a therapy to mitigate myocardial I/R injury.
Collapse
Affiliation(s)
- Peter J Altshuler
- Division of Cardiovascular Surgery, Department of Surgery, University of Pennsylvania, 3400 Spruce Street, Philadelphia, PA 19104, USA
| | - Alexis R Schiazza
- Division of Cardiovascular Surgery, Department of Surgery, University of Pennsylvania, 3400 Spruce Street, Philadelphia, PA 19104, USA
| | - Lijun Luo
- Department of Bioengineering, University of Pennsylvania, 210 South 33 Street, 240 Skirkanich Hall, Philadelphia, PA 19104, USA
| | - Mark R Helmers
- Division of Cardiovascular Surgery, Department of Surgery, University of Pennsylvania, 3400 Spruce Street, Philadelphia, PA 19104, USA
| | - Bonirath Chhay
- Department of Bioengineering, University of Pennsylvania, 210 South 33 Street, 240 Skirkanich Hall, Philadelphia, PA 19104, USA
| | - Jason J Han
- Division of Cardiovascular Surgery, Department of Surgery, University of Pennsylvania, 3400 Spruce Street, Philadelphia, PA 19104, USA
| | - Robin Hu
- Division of Cardiovascular Surgery, Department of Surgery, University of Pennsylvania, 3400 Spruce Street, Philadelphia, PA 19104, USA
| | - D Alan Herbst
- Division of Cardiovascular Surgery, Department of Surgery, University of Pennsylvania, 3400 Spruce Street, Philadelphia, PA 19104, USA
| | - Andrew Tsourkas
- Department of Bioengineering, University of Pennsylvania, 210 South 33 Street, 240 Skirkanich Hall, Philadelphia, PA 19104, USA
| | - Zhiliang Cheng
- Department of Bioengineering, University of Pennsylvania, 210 South 33 Street, 240 Skirkanich Hall, Philadelphia, PA 19104, USA
| | - Pavan Atluri
- Division of Cardiovascular Surgery, Department of Surgery, University of Pennsylvania, 3400 Spruce Street, Philadelphia, PA 19104, USA
| |
Collapse
|
40
|
Wei Y, Yan L, Luo L, Gui T, Jang B, Amirshaghaghi A, You T, Tsourkas A, Qin L, Cheng Z. Phospholipase A 2 inhibitor-loaded micellar nanoparticles attenuate inflammation and mitigate osteoarthritis progression. Sci Adv 2021; 7:7/15/eabe6374. [PMID: 33827816 PMCID: PMC8026133 DOI: 10.1126/sciadv.abe6374] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Accepted: 02/18/2021] [Indexed: 05/08/2023]
Abstract
Treating osteoarthritis (OA) remains a major clinical challenge. Despite recent advances in drug discovery and development, no disease-modifying drug for knee OA has emerged with any notable clinical success, in part, due to the lack of valid and responsive therapeutic targets and poor drug delivery within knee joints. In this work, we show that the amount of secretory phospholipase A2 (sPLA2) enzyme increases in the articular cartilage in human and mouse OA cartilage tissues. We hypothesize that the inhibition of sPLA2 activity may be an effective treatment strategy for OA. To develop an sPLA2-responsive and nanoparticle (NP)-based interventional platform for OA management, we incorporated an sPLA2 inhibitor (sPLA2i) into the phospholipid membrane of micelles. The engineered sPLA2i-loaded micellar NPs (sPLA2i-NPs) were able to penetrate deep into the cartilage matrix, prolong retention in the joint space, and mitigate OA progression. These findings suggest that sPLA2i-NPs can be promising therapeutic agents for OA treatment.
Collapse
Affiliation(s)
- Yulong Wei
- Department of Bioengineering, School of Engineering and Applied Science, University of Pennsylvania, Philadelphia, PA 19104, USA
- Department of Orthopaedic Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Lesan Yan
- Department of Bioengineering, School of Engineering and Applied Science, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Lijun Luo
- Department of Bioengineering, School of Engineering and Applied Science, University of Pennsylvania, Philadelphia, PA 19104, USA
- School of Agricultural Equipment Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Tao Gui
- Department of Orthopaedic Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Bian Jang
- Department of Bioengineering, School of Engineering and Applied Science, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Ahmad Amirshaghaghi
- Department of Bioengineering, School of Engineering and Applied Science, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Tianyan You
- School of Agricultural Equipment Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Andrew Tsourkas
- Department of Bioengineering, School of Engineering and Applied Science, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Ling Qin
- Department of Orthopaedic Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA.
| | - Zhiliang Cheng
- Department of Bioengineering, School of Engineering and Applied Science, University of Pennsylvania, Philadelphia, PA 19104, USA.
| |
Collapse
|
41
|
Bi X, Li L, Liu X, Luo L, Cheng Z, Sun J, Cai Z, Liu J, You T. Inner filter effect-modulated ratiometric fluorescence aptasensor based on competition strategy for zearalenone detection in cereal crops: Using mitoxantrone as quencher of CdTe QDs@SiO 2. Food Chem 2021; 349:129171. [PMID: 33582542 DOI: 10.1016/j.foodchem.2021.129171] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Revised: 01/19/2021] [Accepted: 01/19/2021] [Indexed: 12/16/2022]
Abstract
Herein, an innovative ratiometric fluorescence (FL) aptasensor was successfully fabricated for the accurate analysis of zearalenone (ZEN) in corn and barley flour. The ZEN aptamer-modified nitrogen doped graphene quantum dots (NGQDs-apt) and silica sphere-encapsulated cadmium telluride quantum dots (CdTe QDs@SiO2) were directly mixed and applied as ratiometric probes. In the absence of ZEN, mitoxantrone (MTX), which was innovatively introduced as quencher, was captured by NGQDs-apt and its inner filter effect (IFE) on CdTe QDs@SiO2 was inhibited. When ZEN existed, MTX separated from NGQDs-apt and re-dispersed around CdTe QDs@SiO2 owing to the competitive binding of ZEN with its aptamer. As the IFE of free MTX on CdTe QDs@SiO2 recovering, the FL intensity of CdTe QDs@SiO2 was quenched, while the FL intensity of NGQDs-apt was nearly invariant. On this basis, a ratiometric FL aptasensor for ZEN was fabricated, which exhibited outstanding detection performances with a desirable detection limit of 0.32 pg mL-1.
Collapse
Affiliation(s)
- Xiaoya Bi
- Key Laboratory of Modern Agricultural Equipment and Technology, Ministry of Education, School of Agricultural Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Libo Li
- Key Laboratory of Modern Agricultural Equipment and Technology, Ministry of Education, School of Agricultural Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China.
| | - Xiaohong Liu
- Key Laboratory of Modern Agricultural Equipment and Technology, Ministry of Education, School of Agricultural Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Lijun Luo
- Key Laboratory of Modern Agricultural Equipment and Technology, Ministry of Education, School of Agricultural Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China; Department of Bioengineering, School of Engineering and Applied Sciences, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Zhiliang Cheng
- Department of Bioengineering, School of Engineering and Applied Sciences, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Jinying Sun
- Longgang District Center for Disease Control and Prevention, Shenzhen 518172, China
| | - Zhibin Cai
- Longgang District Center for Disease Control and Prevention, Shenzhen 518172, China
| | - Jinming Liu
- Longgang District Center for Disease Control and Prevention, Shenzhen 518172, China
| | - Tianyan You
- Key Laboratory of Modern Agricultural Equipment and Technology, Ministry of Education, School of Agricultural Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China.
| |
Collapse
|
42
|
Zhang M, Yao Y, Zuo Z, Cheng Z. Discordant lymphoma consisting of NK/T-cell lymphoma and Hodgkin's lymphoma seen on FDG PET. Rev Esp Med Nucl Imagen Mol 2021; 40:184-185. [PMID: 33509690 DOI: 10.1016/j.remn.2020.03.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2019] [Revised: 03/04/2020] [Accepted: 03/20/2020] [Indexed: 11/28/2022]
Affiliation(s)
- M Zhang
- Department of Breast Surgery, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China
| | - Y Yao
- PET/CT Center, Department of Nuclear Medicine, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China
| | - Z Zuo
- Department of Pathology, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China
| | - Z Cheng
- PET/CT Center, Department of Nuclear Medicine, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China.
| |
Collapse
|
43
|
Wathes DC, Cheng Z, Salavati M, Buggiotti L, Takeda H, Tang L, Becker F, Ingvartsen KI, Ferris C, Hostens M, Crowe MA. Relationships between metabolic profiles and gene expression in liver and leukocytes of dairy cows in early lactation. J Dairy Sci 2021; 104:3596-3616. [PMID: 33455774 DOI: 10.3168/jds.2020-19165] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [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: 06/26/2020] [Accepted: 10/11/2020] [Indexed: 12/13/2022]
Abstract
Homeorhetic mechanisms assist dairy cows in the transition from pregnancy to lactation. Less successful cows develop severe negative energy balance (NEB), placing them at risk of metabolic and infectious diseases and reduced fertility. We have previously placed multiparous Holstein Friesian cows from 4 herds into metabolic clusters, using as biomarkers measurements of plasma nonesterified fatty acids, β-hydroxybutyrate, glucose and IGF-1 collected at 14 and 35 d in milk (DIM). This study characterized the global transcriptomic profiles of liver and circulating leukocytes from the same animals to determine underlying mechanisms associated with their metabolic and immune function. Liver biopsy and whole-blood samples were collected around 14 DIM for RNA sequencing. All cows with available RNA sequencing data were placed into balanced (BAL, n = 44), intermediate (n = 44), or imbalanced (IMBAL, n = 19) metabolic cluster groups. Differential gene expression was compared between the 3 groups using ANOVA, but only the comparison between BAL and IMBAL cows is reported. Pathway analysis was undertaken using DAVID Bioinformatic Resources (https://david.ncifcrf.gov/). Milk yields did not differ between BAL and IMBAL cows but dry matter intake was less in IMBAL cows and they were in greater energy deficit at 14 DIM (-4.48 v -11.70 MJ/d for BAL and IMBAL cows). Significantly differentially expressed pathways in hepatic tissue included AMPK signaling, glucagon signaling, adipocytokine signaling, and insulin resistance. Genes involved in lipid metabolism and cholesterol transport were more highly expressed in IMBAL cows but IGF1 and IGFALS were downregulated. Leukocytes from BAL cows had greater expression of histones and genes involved in nucleosomes and cell division. Leukocyte expression of heat shock proteins increased in IMBAL cows, suggesting an unfolded protein response, and several key genes involved in immune responses to pathogens were upregulated (e.g., DEFB13, HP, OAS1Z, PTX3, and TLR4). Differentially expressed genes upregulated in IMBAL cows in both tissues included CD36, CPT1, KFL11, and PDK4, all central regulators of energy metabolism. The IMBAL cows therefore had greater difficulty maintaining glucose homeostasis and had dysregulated hepatic lipid metabolism. Their energy deficit was associated with a reduced capacity for cell division and greater evidence of stress responses in the leukocyte population, likely contributing to an increased risk of infectious disease.
Collapse
Affiliation(s)
- D C Wathes
- Royal Veterinary College, Hatfield, AL9 7TA Hertfordshire, United Kingdom.
| | - Z Cheng
- Royal Veterinary College, Hatfield, AL9 7TA Hertfordshire, United Kingdom
| | - M Salavati
- Royal Veterinary College, Hatfield, AL9 7TA Hertfordshire, United Kingdom
| | - L Buggiotti
- Royal Veterinary College, Hatfield, AL9 7TA Hertfordshire, United Kingdom
| | - H Takeda
- Unit of Animal Genomics, GIGA Institute, University of Liège, B-4000 Liège, Belgium
| | - L Tang
- Unit of Animal Genomics, GIGA Institute, University of Liège, B-4000 Liège, Belgium
| | - F Becker
- Leibniz Institute for Farm Animal Biology, 18196 Dummerstorf, Germany
| | - K I Ingvartsen
- Department of Animal Science, Aarhus University, DK-8830 Tjele, Denmark
| | - C Ferris
- Agri-Food and Biosciences Institute, Belfast BT9 5PX, United Kingdom
| | - M Hostens
- Department of Reproduction, Obstetrics and Herd Health, Ghent University, B-9820 Merelbeke, Belgium
| | - M A Crowe
- School of Veterinary Medicine, University College Dublin, Dublin 4, Ireland
| | | |
Collapse
|
44
|
Chen P, Guo Y, Huang R, Xiao J, Cheng Z. Spinal schwannoma causes acute subarachnoid haemorrhage: A case report and literature review. Neurochirurgie 2021; 67:495-499. [PMID: 33450272 DOI: 10.1016/j.neuchi.2020.12.002] [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: 09/05/2020] [Revised: 11/23/2020] [Accepted: 12/22/2020] [Indexed: 11/28/2022]
Abstract
BACKGROUND Spinal schwannomas that arise from spinal nerve root sheaths are the most common intradural extramedullary spinal tumours and are often accompanied by nerve roots or spinal cord irritation symptoms. The phenomenon of spinal schwannoma causing subarachnoid haemorrhage (SAH) is rare, with ependymoma of the conus medullaris accounting for most cases. CASE REPORT A 45-year-old man was admitted to our hospital due to progressive lower limb weakness and sudden back pain after hard physical work. The patient had not been able to walk for 2hours upon admission. An emergency magnetic resonance imaging (MRI) scan showed that the spinal cord at the C6-T4 level was severely compressed by a subdural mass. During the emergency operation, exploration of the dura and arachnoid mater revealed a fresh blood clot covering a tumour located on the ventral side of the spinal cord. The size of the tumour was approximately 3×2×1cm without adhesion to the surrounding tissue, but the drainage vein was ruptured. Postoperative pathology showed that the tumour was a schwannoma with areas of fresh haemorrhage and focal necrosis. CONCLUSIONS Spinal schwannomas presenting with SAH are rare events. In our opinion, spinal pathology with rapid progression of neurological symptoms requires early diagnosis and emergency management. Complete excision of haemorrhagic tumours is the goal of treatment to prevent recurrence, which can effectively avoid irreversible damage to the spinal cord resulting from spinal cord compression.
Collapse
Affiliation(s)
- P Chen
- Department of Neurosurgery, The Second Affiliated Hospital of Nanchang University, No. 1, Minde road, 330006 Nanchang, Jiangxi, China.
| | - Y Guo
- Department of Neurosurgery, The Second Affiliated Hospital of Nanchang University, No. 1, Minde road, 330006 Nanchang, Jiangxi, China.
| | - R Huang
- Department of Neurosurgery, The Second Affiliated Hospital of Nanchang University, No. 1, Minde road, 330006 Nanchang, Jiangxi, China.
| | - J Xiao
- Department of Neurosurgery, The Second Affiliated Hospital of Nanchang University, No. 1, Minde road, 330006 Nanchang, Jiangxi, China.
| | - Z Cheng
- Department of Neurosurgery, The Second Affiliated Hospital of Nanchang University, No. 1, Minde road, 330006 Nanchang, Jiangxi, China.
| |
Collapse
|
45
|
Cheng Z, Johar A, Gottlieb-Vedi E, Nilsson M, Lagergren J, Lagergren P. Impact of co-morbidity on reoperation or death within 90 days of surgery for oesophageal cancer. BJS Open 2021; 5:6073399. [PMID: 33609378 PMCID: PMC7893455 DOI: 10.1093/bjsopen/zraa035] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Accepted: 10/08/2020] [Indexed: 11/15/2022] Open
Abstract
Background The impact of preoperative co-morbidity on postoperative outcomes in patients with oesophageal cancer is uncertain. A population-based and nationwide cohort study was conducted to assess the influence of preoperative co-morbidity on the risk of reoperation or mortality within 90 days of surgery for oesophageal cancer. Methods This study enrolled 98 per cent of patients who had oesophageal cancer surgery between 1987 and 2015 in Sweden. Modified Poisson regression models provided risk ratios (RRs) with 95 per cent confidence intervals (c.i.) to estimate associations between co-morbidity and risk of reoperation or death within 90 days of oesophagectomy. The RRs were adjusted for age, sex, educational level, pathological tumour stage, neoadjuvant therapy, annual hospital volume, tumour histology and calendar period of surgery. Results Among 2576 patients, 446 (17.3 per cent) underwent reoperation or died within 90 days of oesophagectomy. Patients with a Charlson Co-morbidity Index (CCI) score of 2 or more had an increased risk of reoperation or death compared with those with a CCI score of 0 (RR 1.78, 95 per cent c.i. 1.44 to 2.20), and the risk increased on average by 27 per cent for each point increase of the CCI (RR 1.27, 1.18 to 1.37). The RR was increased in patients with pulmonary disease (RR 1.66, 1.36 to 2.04), cardiac disease (RR 1.37, 1.08 to 1.73), diabetes (RR 1.50, 1.14 to 1.99) and cerebral disease (RR 1.40, 1.06 to 1.85). Conclusion Co-morbidity in general, and pulmonary disease, cardiac disease, diabetes and cerebral disease in particular, increased the risk of reoperation or death within 90 days of oesophageal cancer surgery. This highlights the value of tailored patient selection, preoperative preparation and postoperative care.
Collapse
Affiliation(s)
- Z Cheng
- Surgical Care Science, Department of Molecular Medicine and Surgery, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden
| | - A Johar
- Surgical Care Science, Department of Molecular Medicine and Surgery, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden
| | - E Gottlieb-Vedi
- Upper Gastrointestinal Surgery, Department of Molecular Medicine and Surgery, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden
| | - M Nilsson
- Division of Surgery, Department of Clinical Science, Intervention and Technology (CLINTEC), Karolinska Institutet, Stockholm, Sweden.,Department of Upper Abdominal Diseases, Karolinska University Hospital, Stockholm, Sweden
| | - J Lagergren
- Upper Gastrointestinal Surgery, Department of Molecular Medicine and Surgery, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden.,School of Cancer and Pharmaceutical Sciences, King's College London, London, UK
| | - P Lagergren
- Surgical Care Science, Department of Molecular Medicine and Surgery, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden.,Department of Surgery and Cancer, Imperial College London, London, UK
| |
Collapse
|
46
|
Amirshaghaghi A, Cheng Z, Josephson L, Tsourkas A. Magnetic Nanoparticles. Mol Imaging 2021. [DOI: 10.1016/b978-0-12-816386-3.00033-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
|
47
|
Aime S, Amirshaghaghi A, Angel PM, Ardenkjaer-Larsen JH, Atreya R, Awe S, Badea CT, Beekman FJ, Biade S, Borden MA, Brunsing RL, Chandrasekharan P, Chang JB, Chen F, Chen JW, Chen X, Cheng Z, Cheng Z, Cherin E, Clinthorne NH, Cohen J, Colson C, Conolly S, Contag CH, Cutler CS, Dayton PA, Devoogdt N, Dina O, Drake RR, Dubsky S, Ducongé F, Fellows BD, Foster FS, Francis KP, Fung BK, Gambhir SS, Gao R, Giovenzana GB, Goodwill P, Goorden MC, Gorpas D, Grimm J, Groll AN, Hargus S, Harmsen S, He S, Hensley D, Hutton BF, Huynh Q, Iagaru A, Josephson L, Jurisson SS, Keselman P, Kircher MF, Kokate T, Konkle J, Korsen JA, Krasniqi A, Laniyonu A, Levin CS, Lewis MR, Lewis JS, Liu G, Liu Y, Looger LL, Lu K, Lu Y, Lucignani G, Lyons SK, Maina T, Martelli C, Matheson AM, Mempel TR, Meng LJ, Moradi F, Nagle VL, Neurath MF, Nicolson F, Nie L, Ntziachristos V, Orendorff R, Ottobrini L, Ouyang Y, Paez Segala MG, Parraga G, Perez-Liva M, Pratt EC, Rao J, Rath T, Rodriguez E, Rosenthal EL, Ross BD, Saayujya C, Saritas EU, Scott DA, Sheth VR, Slagle C, Tamura R, Tavitian B, Tay ZW, Terreno E, Thakur M, Thompson C, Tian J, Travagin F, Tsourkas A, Tully KM, Usmani SM, VanBrocklin HF, van Keulen S, van Zijl PC, Walmer RW, Wang C, Wang J, Wang LV, Xavier C, Yao J, Yu EY, Zheng X, Zheng B, Zhou XY. Contributors. Mol Imaging 2021. [DOI: 10.1016/b978-0-12-816386-3.01002-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
|
48
|
Teng CW, Amirshaghaghi A, Cho SS, Cai S, De Ravin E, Singh Y, Miller J, Sheikh S, Delikatny J, Cheng Z, Busch T, Singhal S, Dorsey J, Tsourkas A, Lee JY. Combined Fluorescence-Guided Surgery and Photodynamic Therapy for Glioblastoma Multiforme Using Cyanine and Chlorin Nanocluster. Neurosurgery 2020. [DOI: 10.1093/neuros/nyaa447_808] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
|
49
|
Fan Q, Abouelezz K, Wang Y, Lin X, Li L, Gou Z, Cheng Z, Ding F, Jiang S. Influence of vitamin E, tryptophan and β-glucan on growth performance, meat quality, intestinal immunity, and antioxidative status of yellow-feathered chickens fed thermally oxidized oils. Livest Sci 2020. [DOI: 10.1016/j.livsci.2020.104188] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
50
|
Zheng M, Xing C, Zhang W, Cheng Z, Liu X, Zhang S. Hydrogenated hematite nanoplates for enhanced photocatalytic and photo-Fenton oxidation of organic compounds. INORG CHEM COMMUN 2020. [DOI: 10.1016/j.inoche.2020.108040] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|