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Li S, Leng M, Li Z, Feng Q, Miao X. Confined DNA tetrahedral molecular sieve for size-selective electrochemiluminescence sensing. Anal Chim Acta 2024; 1304:342561. [PMID: 38637057 DOI: 10.1016/j.aca.2024.342561] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2024] [Revised: 03/27/2024] [Accepted: 03/29/2024] [Indexed: 04/20/2024]
Abstract
Size selectivity is crucial in highly accurate preparation of biosensors. Herein, we described an innovative electrochemiluminescence (ECL) sensing platform based on the confined DNA tetrahedral molecular sieve (DTMS) for size-selective recognition of nucleic acids and small biological molecule. Firstly, DNA template (T) was encapsulated into the inner cavity of DNA tetrahedral scaffold (DTS) and hybridized with quencher (Fc) labeled probe DNA to prepare DTMS, accordingly inducing Ru(bpy)32+ and Fc closely proximate, resulting the sensor in a "signal-off" state. Afterwards, target molecules entered the cavity of DTMS to realize the size-selective molecular recognition while prohibiting large molecules outside of the DTMS, resulting the sensor in a "signal-on" state due to the release of Fc. The rigid framework structure of DTS and the anchor of DNA probe inside the DTS effectively avoided the nuclease degradation of DNA probe, and nonspecific protein adsorption, making the sensor possess potential application prospect for size-selective molecular recognition in diagnostic analysis with high accuracy and specificity.
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Affiliation(s)
- Shiqiang Li
- School of Life Science, Jiangsu Normal University, Xuzhou, 221116, PR China
| | - Mingyu Leng
- School of Life Science, Jiangsu Normal University, Xuzhou, 221116, PR China
| | - Zongbing Li
- School of Life Science, Jiangsu Normal University, Xuzhou, 221116, PR China
| | - Qiumei Feng
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, 221116, PR China.
| | - Xiangmin Miao
- School of Life Science, Jiangsu Normal University, Xuzhou, 221116, PR China.
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2
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Zhang Y, Li S, Peng C, Shi Z, Miao X. Dumbbell hybridization chain reaction coupled with positively charged Au@luminol nanoparticles for enhanced electrochemiluminescent sensing of exosomal miRNA-21. Bioelectrochemistry 2024; 155:108556. [PMID: 37708782 DOI: 10.1016/j.bioelechem.2023.108556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2023] [Revised: 08/31/2023] [Accepted: 09/05/2023] [Indexed: 09/16/2023]
Abstract
MicroRNAs (miRNAs) are important cancer biomarkers in cancer cell-derived exosomes. Herein, positively charged Au@luminol nanoparticles ((+)Au@luminol NPs) with enhanced electrochemiluminescence (ECL) and extreme stability were firstly established for the sensitive detection of miRNA-21 in exosome. In the presence of miRNA-21, dumbbell hybridization chain reaction (DHCR) happened at gold nanoparticles and ZIF-67 metal-organic framework modified glass carbon electrode (AuNP/ZIF-MOF/GCE) with the help of dumbbell DNA fuel strands (DHP1 and DHP2). The formed DHCR polymers were negatively charged and could electrostatically adsorb numbers of (+)Au@luminol NPs to produce strong ECL signal. Combing DHCR signal amplification with (+)Au@luminol NPs enhancer, sensitive detection of miRNA-21 realized with a detection limit of 0.43 fM. Moreover, the proposed method was successfully applied for the analysis of miRNA-21 in serum samples of healthy individuals and breast cancer patients, indicating a potential application value in early clinical diagnosis.
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Affiliation(s)
- Yun Zhang
- Department of Pharmacy, Changzhi Medical College, Shanxi 046012, PR China
| | - Shiqiang Li
- School of Life Science, Jiangsu Normal University, Xuzhou 221116, PR China
| | - Chenxu Peng
- School of Life Science, Jiangsu Normal University, Xuzhou 221116, PR China
| | - Zhe Shi
- Department of Pharmacy, Changzhi Medical College, Shanxi 046012, PR China
| | - Xiangmin Miao
- School of Life Science, Jiangsu Normal University, Xuzhou 221116, PR China.
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3
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Feng Q, Wang C, Miao X, Wu M. A novel paper-based electrochemiluminescence biosensor for non-destructive detection of pathogenic bacteria in real samples. Talanta 2024; 267:125224. [PMID: 37751632 DOI: 10.1016/j.talanta.2023.125224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Revised: 09/13/2023] [Accepted: 09/18/2023] [Indexed: 09/28/2023]
Abstract
The demand for sensitive, portable, and non-destructive analysis of pathogenic bacteria is of significance in point-of-care diagnosis. Herein, we constructed a smart electrochemiluminescence (ECL) biosensor by integrating a flexible paper-based sensing device and a disposable three-electrode detecting system. Staphylococcus aureus (S. aureus)-responsive cellulose paper was prepared by employing aptamer as recognition element and a probe DNA (probe DNA-GOD) tagged with glucose oxidase (GOD) as a signal amplification unit. The formation of aptamer-S. aureus complex mediated the quantitative release of probe DNA-GOD. The remaining probe DNA-GOD on the paper-based aptasensor was then activated by glucose, which resulted in a significant decrease in ECL signal. To further improve the ECL performance of biosensor, a large number of Ru(bpy)32+ molecules were embedded into porous zinc-based metal-organic frameworks (MOFs) to form Ru(bpy)32+ functionalized MOF nanoflowers (Ru-MOF-5 NFs). Such biosensor enabled accurate, non-destructive, and real-time monitoring of S. aureus-contaminated food samples, opening a new avenue for sensitive recognition of pathogenic bacteria.
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Affiliation(s)
- Qiumei Feng
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, 221116, China
| | - Chengcheng Wang
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, 221116, China
| | - Xiangmin Miao
- School of Life Science, Jiangsu Normal University, Xuzhou, 221116, PR China.
| | - Meisheng Wu
- Department of Chemistry, College of Sciences, Nanjing Agricultural University, 1 Weigang, Nanjing, 210095, China.
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Zhang Y, Gao L, Han J, Miao X. Dual-signal and one-step monitoring of Staphylococcus aureus in milk using hybridization chain reaction based fluorescent sensor. Spectrochim Acta A Mol Biomol Spectrosc 2023; 303:123191. [PMID: 37517267 DOI: 10.1016/j.saa.2023.123191] [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: 05/25/2023] [Revised: 07/06/2023] [Accepted: 07/22/2023] [Indexed: 08/01/2023]
Abstract
Food-borne pathogens in dairy products that was contaminated from raw ingredients or improper food handling can cause a major threaten to human health. Here, to construct the pathogens detection, a dual-signal readout fluorescent switching sensor was designed for one-step determination of Staphylococcus aureus (S. aureus), which was a marker of food contamination. Graphene oxide (GO) was used as a fluorescence quencher, while fluorophore-labeled hairpin DNA was used as a donor, resulting in fluorescence resonance energy transfer (FRET) from the fluorophore to GO (signal off). Enzyme-free hybridization chain reaction could generate remarkable signal amplification, which avoided the nonspecific desorption caused by any enzymatic proteins in GO surface. With the strong binding ability of aptamer to S. aureus, a long bifluorescent molecules-labeled double-stranded DNA product was formed, bringing in dual-signal readout responses (signal on). Consequently, a reliable, sensitive and selective sensor was obtained for one-step quantification of S. aureus concentration from 10 to 108 CFU/mL with a detection limit of 1 CFU/mL. Furthermore, satisfactory stability, reproducibility, specificity and good recovery efficiency in milk samples revealed that the proposed sensor could be served as a prospective tool for food safety analysis.
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Affiliation(s)
- Yun Zhang
- Department of Pharmacy, Changzhi Medical College, Shanxi 046012, China.
| | - Liang Gao
- Department of Pharmacy, Changzhi Medical College, Shanxi 046012, China
| | - Jing Han
- Department of Pharmacy, Changzhi Medical College, Shanxi 046012, China
| | - Xiangmin Miao
- School of Life Science, Jiangsu Normal University, Xuzhou 221116, China
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Bennett S, Verry C, Kaza E, Miao X, Berbeco RI, Sudhyadhom A. Theranostic Nanoparticle Uptake in Patient Brain Tumors as Quantified by MP2RAGE T1 Mapping. Int J Radiat Oncol Biol Phys 2023; 117:S32. [PMID: 37784476 DOI: 10.1016/j.ijrobp.2023.06.296] [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: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) Modern radiation therapy techniques provide effective treatments for solid tumors, but there remain challenges with delivering high doses to elusive tumors without causing toxicity to surrounding normal tissue. Pre-clinical trials have demonstrated the theranostic properties of a recently developed gadolinium-based nanoparticle (Gd-NP). The first in-human clinical trial was conducted to assess the safety and dose tolerance of intravenous Gd-NPs in combination with whole brain radiotherapy and showed favorable results, including a significant correlation between tumor uptake and therapeutic response. The second, double-blinded, in-human clinical trial is underway in the US and aims to evaluate if brain-directed stereotactic radiation in conjunction with NPs will improve local tumor control compared to radiation alone. The current work investigates uptake patterns in brain tumors of 23 patients as quantified by magnetization prepared 2 rapid gradient echo (MP2RAGE) T1 mapping. MATERIALS/METHODS A phantom containing eight vials of NP-saline solutions at varying concentrations was created to examine the relationship between NP concentration and longitudinal relaxation (T1, in seconds). This relationship is known as relaxivity and is dependent on the contrast agent, field strength and T1 mapping sequence. A 3T MAGNETOM Vida scanner and MP2RAGE sequence were used to image the phantom and MP2RAGE T1 maps were calculated using Bloch equations (QMRLab software). Relaxivity was determined and applied to 23 patient T1 maps (pre- and post- Gd-NP administration) to calculate uptake on an individual tumor basis. Theranostic NP uptake was calculated for every voxel in each of 129 brain metastases and examined for patterns in quantity and distribution. RESULTS Average individual tumor uptake ranged from 0.02-0.12 mg/ml, where average overall uptake was equal to 0.05 mg/ml. A relationship between tumor diameter and mean NP concentration was observed and best represented by a power-based curve (R2 = 0.92). In contrast, patients with suspected placebo administration appeared to have no uptake and therefore no relationship with tumor diameter. The distribution of NP concentration within the tumor was also examined; on average, linear uptake profiles through tumor centroids (ant-post, left-right) demonstrated roughly gaussian patterns of uptake with lower concentrations at the tumor edges and higher concentrations at the tumor center. This pattern indicates robust tumor penetration and may have implications for amplifying radiation dose to hypoxic tumors. CONCLUSION Gd-NP uptake in brain metastases can be quantified using MP2RAGE T1 mapping. Uptake was determined for each voxel in each tumor volume, where a gaussian pattern of spatial concentrations was observed. This analysis procedure will be applied to the full data set, when available, to evaluate the impact of NP uptake (in conjunction with radiation therapy) within individual patients and individual tumors.
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Affiliation(s)
- S Bennett
- Department of Radiation Oncology, Brigham and Women's Hospital, Dana Farber Cancer Institute and Harvard Medical School, Boston, MA
| | - C Verry
- Centre Hospitalier Universitaire Grenoble-Alpes, Maquis du Grésivaudan, 38700 La Tronche, France
| | - E Kaza
- Department of Radiation Oncology, Brigham and Women's Hospital/Dana-Farber Cancer Institute, Boston, MA
| | - X Miao
- Siemens Medical Solutions USA Inc, Malvern, PA
| | - R I Berbeco
- Department of Radiation Oncology, Brigham and Women's Hospital, Dana Farber Cancer Institute and Harvard Medical School, Boston, MA
| | - A Sudhyadhom
- Department of Radiation Oncology, Brigham and Women's Hospital, Dana Farber Cancer Institute and Harvard Medical School, Boston, MA
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Li Z, Xu H, Zhang Z, Miao X. DNA tetrahedral scaffold-corbelled 3D DNAzyme walker for electrochemiluminescent aflatoxin B 1 detection. Food Chem 2023; 407:135049. [PMID: 36493494 DOI: 10.1016/j.foodchem.2022.135049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Revised: 11/18/2022] [Accepted: 11/21/2022] [Indexed: 11/24/2022]
Abstract
The reaction efficiency of surface-based DNA walker can directly affect the properties of a biosensor. Herein, three-dimensional (3D) DNAzyme walker were first fixed on the top of DNA tetrahedral scaffold to improve the immobilization efficiency. Ferrocene (Fc) that labeled at substrate strand ends effectively quenched the electrochemiluminescence (ECL) signal of Ru(bpy)2(cpaphen)2+, yielding the sensor in a "signal-off" state. Upon the addition of aflatoxin B1 (AFB1), 3D DNAzyme walker was activated and fueled by Na+, accordingly releasing Fc and recovering the ECL signal of Ru(bpy)2(cpaphen)2+. Due to the high movement efficiency of such 3D DNAzyme walker, ultrasensitive detection of AFB1 was achieved in the range of 1.0 fg mL-1-10 ng mL-1, with a detection limit of 0.58 fg mL-1. Moreover, satisfactory results were obtained while detecting AFB1 in corn and peanut samples, suggesting it has a potential application in food safety analysis.
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Affiliation(s)
- Zongbing Li
- School of Life Science, Jiangsu Normal University, Xuzhou 221116, PR China
| | - Huanwen Xu
- School of Life Science, Jiangsu Normal University, Xuzhou 221116, PR China
| | - Zifeng Zhang
- School of Life Science, Jiangsu Normal University, Xuzhou 221116, PR China.
| | - Xiangmin Miao
- School of Life Science, Jiangsu Normal University, Xuzhou 221116, PR China.
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Zhang H, Wang Y, Lin Y, Chu W, Luo Z, Zhao M, Hu J, Miao X, He F. A catalytic hairpin assembly-based Förster resonance energy transfer sensor for ratiometric detection of ochratoxin A in food samples. Anal Bioanal Chem 2023; 415:867-874. [PMID: 36564526 DOI: 10.1007/s00216-022-04479-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Revised: 12/04/2022] [Accepted: 12/07/2022] [Indexed: 12/25/2022]
Abstract
Ochratoxin A (OTA) poses severe risks to the environment and human health, making the development of an accurate and sensitive analytical method for OTA detection essential. In this study, a catalytic hairpin assembly (CHA)-based Förster resonance energy transfer (FRET) aptasensor was developed to detect OTA using carbon quantum dots (CDs) and 6-carboxy-fluorescein (FAM) as dual signal readout. In the presence of OTA, the aptamer specifically interacted with OTA to release the helper DNA (HP), which could open the hairpin structure of FAM-labeled hairpin DNA 1 (H1-FAM) modified on the surface of gold nanoparticles (AuNPs). CHA between H1-FAM and hairpin H2 labeled with CDs (H2-CDs) can release HP for the next cycle, resulting in the occurrence of FRET with CDs as the energy donor and FAM as the energy acceptor. According to the ratio of FCDs/FFAM, the proposed aptasensor showed a wide linear range from 5.0 pg/mL to 3.0 ng/mL and a low detection limit of 1.5 pg/mL for OTA detection. Moreover, satisfactory results were obtained for OTA detection in rice, suggesting the potential application of this sensor in food safety analysis.
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Affiliation(s)
- Hong Zhang
- College of Tobacco Science, Henan Agricultural University, Zhengzhou, Henan, 450002, People's Republic of China
| | - Yuli Wang
- College of Tobacco Science, Henan Agricultural University, Zhengzhou, Henan, 450002, People's Republic of China
| | - Yingtong Lin
- School of Life Science, Jiangsu Normal University, Xuzhou, Jiangsu, 221116, People's Republic of China
| | - Wenjuan Chu
- Technology Center, China Tobacco Henan Industrial Co., Ltd., Zhengzhou, Henan, 450000, People's Republic of China
| | - Zhen Luo
- Technology Center, China Tobacco Henan Industrial Co., Ltd., Zhengzhou, Henan, 450000, People's Republic of China
| | - Mingqin Zhao
- College of Tobacco Science, Henan Agricultural University, Zhengzhou, Henan, 450002, People's Republic of China
| | - Jiandong Hu
- Henan International Joint Laboratory of Laser Technology in Agriculture Sciences, Zhengzhou, Henan, 450002, People's Republic of China
| | - Xiangmin Miao
- School of Life Science, Jiangsu Normal University, Xuzhou, Jiangsu, 221116, People's Republic of China.
| | - Fan He
- College of Tobacco Science, Henan Agricultural University, Zhengzhou, Henan, 450002, People's Republic of China.
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8
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Lin L, Li S, Hu S, Yu W, Jiang B, Mao C, Li G, Yang R, Miao X, Jin M, Gu Y, Lu E. UCHL1 Impairs Periodontal Ligament Stem Cell Osteogenesis in Periodontitis. J Dent Res 2023; 102:61-71. [PMID: 36112902 DOI: 10.1177/00220345221116031] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Periodontitis comprises a series of inflammatory responses resulting in alveolar bone loss. The suppression of osteogenesis of periodontal ligament stem cells (PDLSCs) by inflammation is responsible for impaired alveolar bone regeneration, which remains an ongoing challenge for periodontitis therapy. Ubiquitin C-terminal hydrolase L1 (UCHL1) belongs to the family of deubiquitinating enzymes, which was found to play roles in inflammation previously. In this study, the upregulation of UCHL1 was identified in inflamed PDLSCs isolated from periodontitis patients and in healthy PDLSCs treated with tumor necrosis factor-α or interleukin-1β, and the higher expression level of UCHL1 was accompanied with the impaired osteogenesis of PDLSCs. Then UCHL1 was inhibited in PDLSCs using the lentivirus or inhibitor, and the osteogenesis of PDLSCs suppressed by inflammation was rescued by UCHL1 inhibition. Mechanistically, the negative effect of UCHL1 on the osteogenesis of PDLSCs was attributable to its negative regulation of mitophagy-dependent bone morphogenetic protein 2/Smad signaling pathway in periodontitis-associated inflammation. Furthermore, a ligature-induced murine periodontitis model was established, and the specific inhibitor of UCHL1 was administrated to periodontitis mice. The histological results showed increased active osteoblasts on alveolar bone surface and enhanced alveolar bone regeneration when UCHL1 was inhibited in periodontitis mice. Besides, the therapeutic effects of UCHL1 inhibition on ameliorating periodontitis were verified, as indicated by less bone loss and reduced inflammation. Altogether, our study proved UCHL1 to be a key negative regulator of the osteogenesis of PDLSCs in periodontitis and suggested that UCHL1 inhibition holds promise for alveolar bone regeneration in periodontitis treatment.
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Affiliation(s)
- L Lin
- Department of Stomatology, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - S Li
- Department of Stomatology, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - S Hu
- Department of Stomatology, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - W Yu
- Department of Stomatology, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - B Jiang
- Department of Stomatology, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - C Mao
- Department of Stomatology, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - G Li
- Department of Stomatology, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - R Yang
- Department of Stomatology, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - X Miao
- Key Laboratory of Tissue Microenvironment and Tumor, Shanghai Institute of Nutrition and Health, Shanghai Institutes for Biological Sciences, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
| | - M Jin
- Department of Stomatology, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Y Gu
- Department of Stomatology, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,Key Laboratory of Tissue Microenvironment and Tumor, Shanghai Institute of Nutrition and Health, Shanghai Institutes for Biological Sciences, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
| | - E Lu
- Department of Stomatology, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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Thomas H, Miao X, Ferguson D, Krishnamurthy U, Feng M, Scholey J. Contrast-Enhanced 4D MRI for Internal Target Volume Generation in Treatment Planning for Liver Tumors. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.2192] [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: 11/26/2022]
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Wu S, Zou S, Wang S, Li Z, Ma DL, Miao X. CTnI diagnosis in myocardial infarction using G-quadruplex selective Ir(Ⅲ) complex as effective electrochemiluminescence probe. Talanta 2022; 248:123622. [DOI: 10.1016/j.talanta.2022.123622] [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] [Received: 02/14/2022] [Revised: 03/17/2022] [Accepted: 05/26/2022] [Indexed: 10/18/2022]
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Miao X, Zhou S, Wang C. A DFT Study on the Adsorption of Carboxyl-Containing Monomers on CH (001) Surface. Russ J Phys Chem B 2022. [DOI: 10.1134/s199079312204011x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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12
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Wu S, Wang S, Li Z, Wu C, Ma DL, Miao X. G-quadruplex-selective iridium(III) complex as a novel electrochemiluminescence probe for switch-on assay of double-stranded DNA. Anal Bioanal Chem 2022; 414:3755-3763. [PMID: 35396609 DOI: 10.1007/s00216-022-04018-2] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2021] [Revised: 03/01/2022] [Accepted: 03/11/2022] [Indexed: 12/01/2022]
Abstract
In this work, we synthesized an iridium(III) complex and studied its selective ability to interact with a specific G-quadruplex DNA sequence (GTGGGTAGGGCGGGTTGG). Results showed that the iridium(III) complex exhibits high selectivity for the G-quadruplex DNA and could be used as an efficient electrochemiluminescence (ECL) probe in a switch-on assay format for the detection of double-stranded DNA (dsDNA). To construct the assay, a hairpin-structured capture probe (CP) which was modified by thiol at its 3' end and contained the G-quadruplex sequence at its 5' end was firstly immobilized on a gold electrode. Upon the specific recognition of the dsDNA sequence with the corresponding CP, the hairpin structure of the CP was opened to free G-quadruplex sequence, forming the G-quadruplex structure with the assistance of K+. Then, the iridium(III) complex was able to specifically interact with the G-quadruplex to produce an obvious ECL signal that was proportional to the dsDNA concentration. Notably, this iridium(III) complex/G-quadruplex-based strategy was universal and was not limited to the analysis of DNA using specific sequences, thus opening a new avenue for the application of the G-quadruplex-selective iridium(III) complex in the field of ECL.
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Affiliation(s)
- Shujie Wu
- School of Life Science, Jiangsu Normal University, Xuzhou, 221116, China
| | - Songen Wang
- School of Life Science, Jiangsu Normal University, Xuzhou, 221116, China
| | - Zongbing Li
- School of Life Science, Jiangsu Normal University, Xuzhou, 221116, China
| | - Chun Wu
- Department of Chemistry, Hong Kong Baptist University, Kowloon, 999077, Hong Kong SAR
| | - Dik-Lung Ma
- Department of Chemistry, Hong Kong Baptist University, Kowloon, 999077, Hong Kong SAR.
| | - Xiangmin Miao
- School of Life Science, Jiangsu Normal University, Xuzhou, 221116, China.
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13
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Liu S, Li Q, Yang H, Wang P, Miao X, Feng Q. An in situ quenching electrochemiluminescence biosensor amplified with aptamer recognition-induced multi-DNA release for sensitive detection of pathogenic bacteria. Biosens Bioelectron 2022; 196:113744. [PMID: 34736100 DOI: 10.1016/j.bios.2021.113744] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2021] [Revised: 10/17/2021] [Accepted: 10/27/2021] [Indexed: 01/20/2023]
Abstract
An in situ quenching electrochemiluminescence (ECL) biosensor sensitized with the aptamer recognition-induced multi-DNA release was designed for pathogenic bacterial detection. Benefitting from the high binding ability of the aptamer to targets and large enrichment capacity of magnetic bead separation, the proposed sensing system not only exhibited outstanding identification to Staphylococcus aureus (S. aureus) among various bacteria, but also released abundant signal transduction DNAs. One S. aureus initiated the dissociation of four kinds of DNA sequences, achieving a one-to-multiple amplification effect. These multi-DNA strands were further hybridized with capture DNA, which were assembled to an electrode modified with Ru(bpy)32+-conjugated silica nanoparticles (RuSi NPs). Then, glucose oxidase (GOD) was introduced via the functional conjugation of GOD-multi-DNA, leading to the presence of H2O2 by in situ catalysis of GOD on glucose. Relying on the ECL quenching of H2O2 in the Ru(bpy)32+ system, S. aureus was quantified with a linear range from 10 to 107 CFU/mL. In addition, the negative results of non-target bacteria and good recovery efficiency in real samples revealed the system's remarkable selectivity and potential application in infectious food tests.
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Affiliation(s)
- Shihua Liu
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, 221116, PR China
| | - Qiuyan Li
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, 221116, PR China
| | - Huili Yang
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, 221116, PR China
| | - Po Wang
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, 221116, PR China.
| | - Xiangmin Miao
- School of Life Science, Jiangsu Normal University, Xuzhou, 221116, PR China
| | - Qiumei Feng
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, 221116, PR China.
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Liu S, Li XM, Yuan JB, Li LL, Wang C, Lin XM, Miao X, Shi ZC. MiR-665 inhibits inflammatory response in microglia following spinal cord injury by targeting TREM2. Eur Rev Med Pharmacol Sci 2021; 25:65-70. [PMID: 33506893 DOI: 10.26355/eurrev_202101_24349] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE The purpose of this study was to uncover the role of microRNA-665 (miR-665) in protecting inflammatory response in microglia following spinal cord injury (SCI) and the underlying mechanism. PATIENTS AND METHODS The serum levels of miR-665 and TREM2 (triggering receptor expressed on myeloid 2) in SCI patients (n=24) and healthy subjects (n=24) were detected by quantitative Real Time-Polymerase Chain Reaction (qRT-PCR). Then, the serum levels of interleukin-6 (IL-6) and tumor necrosis factor-α (TNF-α) were detected by enzyme-linked immunosorbent assay (ELISA). After lipopolysaccharide (LPS) induction in BV2 cells, the relative levels of miR-665 and TREM2 were detected by qRT-PCR, and relative levels of IL-6 and TNF-α in the culture medium were examined by ELISA. Next, TREM2, the target gene of miR-665, was determined by Dual-Luciferase reporter assay, and the relationship between the expression levels of TREM2 and miR-665 in SCI patients and BV2 cells was analyzed. Finally, the regulatory effects of miR-665 and TREM2 on IL-6 and TNF-α levels in the culture medium of LPS-induced BV2 cells were assessed. RESULTS It was found that miR-665 was downregulated in serum of SCI patients and LPS-induced BV2 cells, while TREM2 was upregulated. Silenced miR-665 or overexpressed TREM2 was involved in protecting inflammatory response following SCI. Besides, rescue experiments showed that miR-665 participated in the regulation of inflammatory response following SCI by targeting TREM2. CONCLUSIONS MiR-665 inhibits inflammatory response following SCI by targeting TREM2.
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Affiliation(s)
- S Liu
- Department of Orthopaedics, Changhai Hospital, Second Military Medical University, Shanghai, China.
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15
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Yang J, Yang FJ, Wang YG, Su GF, Miao X. LncRNA MIR497HG inhibits proliferation and migration of retinal endothelial cells under high-level glucose treatment via miRNA-128-3p/SIRT1 axis. Eur Rev Med Pharmacol Sci 2021; 24:5871-5877. [PMID: 32572899 DOI: 10.26355/eurrev_202006_21479] [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] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE The aim of this study was to elucidate the potential influence of MIR497HG on regulating proliferative capacity of human retinal endothelial cells (HRECs). MATERIALS AND METHODS Relative expression levels of MIR497HG, microRNA-128-3p (miRNA-128-3p) and SIRT1 in HRECs treated with different doses of glucose and mannitol were detected by quantitative Real Time-Polymerase Chain Reaction (qRT-PCR). Dual-Luciferase reporter gene assay was conducted to assess the interaction among MIR497HG, miRNA-128-3p, and SIRT1. In addition, the potential effects of MIR497HG/miRNA-128-3p/SIRT1 axis on proliferative and migratory capacities in HRECs were evaluated by Cell Counting Kit-8 (CCK-8), 5-Ethynyl-2'- deoxyuridine (EdU) and transwell assay, respectively. RESULTS High-level glucose (HG) treatment significantly downregulated MIR497HG and SIRT1 expression, whereas upregulated miRNA-128-3p expression in HRECs (p<0.05). MiRNA-128-3p was the target gene binding MIR497HG, and SIRT1 was the downstream gene of miRNA-128-3p. Overexpression of MIR497HG significantly attenuated proliferative and migratory abilities of HG-induced HRECs (p<0.05). Furthermore, decreased trends were partially reversed by overexpression of miRNA-128-3p or knockdown of SIRT1. CONCLUSIONS MIR497HG is downregulated after HG treatment. In addition, it suppresses the proliferation and migration of HRECs by targeting miRNA-128-3p/SIRT1 axis, thus influencing the progression of diabetic retinopathy.
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Affiliation(s)
- J Yang
- Department of Ophthalmology, The Second Hospital of Jilin University, Changchun, China.
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16
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Zheng YQ, Miao X, Li J, Hu MF, Zhu YS, Li XR, Zhang YJ. Trichostatin A alleviates the process of breast carcinoma by downregulating LPAR5. Eur Rev Med Pharmacol Sci 2021; 24:6417-6425. [PMID: 32572939 DOI: 10.26355/eurrev_202006_21540] [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] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE To elucidate the role of histone deacetylase inhibitor Trichostatin A (TSA) in affecting metastasis of breast carcinoma, and its molecular mechanism. PATIENTS AND METHODS LPAR5 levels in breast carcinoma tissues and paracancerous tissues were detected by quantitative real-time polymerase chain reaction (qRT-PCR), and its expression pattern was further verified in breast carcinoma cell lines. The relationship between LPAR5 and prognosis of breast carcinoma patients was analyzed. After TSA induction (100-400 nmol/L) for 6-48 h, the proliferative and migratory abilities of SKBR3 and MDA-MB-231 cells in overexpressing LPAR5 were examined by cell counting kit-8 (CCK-8), transwell and wound healing assay. By constructing a xenograft model in nude mice, the influences of TSA and LPAR5 on in vivo growth of breast carcinoma were examined. RESULTS LPAR5 was upregulated in breast carcinoma samples. High level of LPAR5 predicted higher rates of lymphatic metastasis and distant metastasis, as well as lower overall survival and progression-free survival in breast carcinoma patients. LPAR5 level was dose-dependently downregulated in TSA-induced SKBR3 and MDA-MB-231 cells. In addition, TSA induction dose-dependently declined proliferative ability, and time-dependently attenuated migratory ability in breast carcinoma cells. In vivo overexpression of LPAR5 in nude mice reversed the inhibitory effect of TSA on breast carcinoma growth. CONCLUSIONS TSA induction can suppress proliferative and migratory abilities in breast carcinoma by downregulating LPAR5.
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Affiliation(s)
- Y-Q Zheng
- Department of General Surgery, First Medical Center, PLA General Hospital, Beijing, China.
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17
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Li Z, Xu H, Li S, Wu S, Miao X. Zettomole electrochemical HIV DNA detection using 2D DNA-Au nanowire structure, hemin/G-quadruplex and polymerase chain reaction multi-signal synergistic amplification. Anal Chim Acta 2021; 1159:338428. [PMID: 33867042 DOI: 10.1016/j.aca.2021.338428] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2021] [Revised: 03/10/2021] [Accepted: 03/15/2021] [Indexed: 01/09/2023]
Abstract
Multi-signal synergistically amplified electrochemical sensing of HIV DNA was proposed based on two-dimensional (2D) DNA-Au nanowire structure coupled with hemin/G-quadruplex and polymerase chain reaction (PCR). In the design, by using target HIV DNA as the template, PCR generated numbers of double-stranded DNA (dsDNA) with free single-stranded DNA (ssDNA) tails on one side and free G-quadruplex sequences on the other side. Then, the ssDNA tails of the PCR products were hybridized with the capture probe (CP) to introduce the hemin/G-quadruplex to the electrode surface as a redox-active reporter and to amplify the electrochemical signal as mimic peroxidase catalysis in the presence of H2O2. Meanwhile, (+)AuNPs were electrostatically adsorbed onto dsDNA surface for the formation of 2D DNA-Au nanowire structure, amplifying the electrochemical signal further as another mimic peroxidase and electric conductor together. By effectively combining these signal amplification processes, ultrasensitive HIV DNA detection was achieved with a detection limit of 1.3 aM, indicating that it has potential application in clinical diagnosis.
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Affiliation(s)
- Zongbing Li
- School of Life Science, Jiangsu Normal University, Xuzhou, 221116, PR China
| | - Huanwen Xu
- School of Life Science, Jiangsu Normal University, Xuzhou, 221116, PR China
| | - Shiqiang Li
- School of Life Science, Jiangsu Normal University, Xuzhou, 221116, PR China
| | - Shujie Wu
- School of Life Science, Jiangsu Normal University, Xuzhou, 221116, PR China
| | - Xiangmin Miao
- School of Life Science, Jiangsu Normal University, Xuzhou, 221116, PR China.
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18
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Li Z, Zou S, Wu S, Miao X, Ma DL. Polymerase chain reaction-based ultrasensitive detection of HBV DNA via G-quadruplex selective iridium(III) complex luminescent probe. Talanta 2021; 221:121661. [DOI: 10.1016/j.talanta.2020.121661] [Citation(s) in RCA: 6] [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] [Received: 07/13/2020] [Revised: 09/07/2020] [Accepted: 09/09/2020] [Indexed: 12/20/2022]
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Chen J, Yan J, Feng Q, Miao X, Dou B, Wang P. Label-free and enzyme-free fluorescence detection of microRNA based on sulfydryl-functionalized carbon dots via target-initiated hemin/G-quadruplex-catalyzed oxidation. Biosens Bioelectron 2021; 176:112955. [PMID: 33412427 DOI: 10.1016/j.bios.2020.112955] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Revised: 12/27/2020] [Accepted: 12/28/2020] [Indexed: 10/22/2022]
Abstract
Carbon dots (CDs)-based biosensors have attracted considerable interest in reliable and sensitive detection of microRNA (miRNA) because of their merits of ultra-small size, excellent biosafety and tunable emission, whereas complicated labeling procedure and expensive bioenzyme associated with current strategies significantly limit their practical application. Herein, we developed a label-free and enzyme-free fluorescence strategy based on strand displaced amplification (SDA) for highly sensitive detection of miRNA using sulfydryl-functionalized CDs (CDs-SH) as probe. CDs-SH displayed excellent response to G-quadruplex DNA against other DNAs based on based on the catalytic oxidation of -SH into -S-S- by hemin/G-quadruplex. Further, CDs-SH were employed to detect miRNA, using miRNA-21 as target model, which triggered the SDA reaction of P1 and P2 to generate hemin/G-quadruplex, subsequently making CDs-SH transform from dot to aggresome along with the quenched fluorescence. Therefore, label-free, enzyme-free, and highly sensitive analysis of miRNA-21 was readily acquired with a limit of detection at 0.03 pM. This proposed biosensor couples the advantages of CDs and label-free/enzyme-free strategy, and thus has a significant potential to be used in early and accurate diagnosis of cancer.
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Affiliation(s)
- Jianling Chen
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou 221116, China; School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, China
| | - Ji Yan
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou 221116, China
| | - Qiumei Feng
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou 221116, China.
| | - Xiangmin Miao
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou 221116, China
| | - Baoting Dou
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou 221116, China
| | - Po Wang
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou 221116, China.
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20
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Ding L, Miao X, Lu J, Hu J, Xu X, Zhu H, Xu Q, Zhu S. Comparing the Performance of Different Instruments for Diagnosing Frailty and Predicting Adverse Outcomes among Elderly Patients with Gastric Cancer. J Nutr Health Aging 2021; 25:1241-1247. [PMID: 34866152 DOI: 10.1007/s12603-021-1701-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
OBJECTIVES To examine the diagnostic performance of the Tilburg Frailty Indicator (TFI), 11-factor modified frailty index (mFI-11), and 5-factor modified frailty index (mFI-5) for frailty defined by Frailty Phenotype (FP), as well as to compare the predictive ability of TFI, mFI-11, and mFI-5 for adverse outcomes in hospital among elderly patients undergoing gastric cancer surgery. DESIGN A prospective cohort study. SETTING Hospitalization setting, Nanjing, China. PARTICIPANTS We recruited 259 elderly patients undergoing gastric cancer surgery from a tertiary hospital. MEASUREMENTS Frailty was assessed by the FP, TFI, mFI-11, and mFI-5 before surgery, respectively. The receiver operating characteristic (ROC) curves were plotted to compared the diagnostic performance of TFI, mFI-11, and mFI-5 using FP as the reference. ROC curves were used to examine the performance of TFI, mFI-11, and mFI-5 in predicting adverse outcomes. The area under the curve (AUC)>0.70 was regarded as an indicator of good performance. RESULTS The prevalence of frailty ranged from 8.5% (mFI-11) to 45.9% (TFI). The AUCs of TFI (AUC: 0.764, p<0.001) was significantly greater than that of mFI-11 (AUC: 0.600, p=0.033) and mFI-5 (AUC: 0.600, p=0.0311) in the detection of frailty defined by FP, with quite different sensitivity and specificity at their original cutoffs. TFI and mFI-11 both had statistically significant but similarly inadequate predictive accuracy for adverse outcomes in hospital, including total complications (AUCs: 0.618; 0.621), PLOS (AUCs: 0.593; 0.639), increased hospital costs (AUCs: 0.594; 0.624), and hypoproteinemia (AUCs: 0.573; 0.600). For the mFI-5, only the predictive ability for hypoproteinemia was statistically significant, with poor accuracy (AUC: 0.592, p<0.0055). CONCLUSION The TFI performed slightly better than mFI-11 and mFI-5 in our study. Moreover, future studies are needed to further determine an optimal frailty instrument with great diagnostic and predictive accuracy.
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Affiliation(s)
- L Ding
- Qin Xu, Professor, School of Nursing, Nanjing Medical University, 101Longmian Avenue, Jiangning District, Nanjing, China, ; Shuqin Zhu, Associate Professor, School of Nursing, Nanjing Medical University, 101Longmian Avenue, Jiangning District, Nanjing, China,
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21
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Dong L, Yang L, Li Y, Yang J, An X, Yang L, Zhou N, Zhang Y, Du H, Lan J, Song Z, Miao X, Zhu J, Tao J. Efficacy of hydrogel patches in preventing facial skin damage caused by mask compression in fighting against coronavirus disease 2019: a short-term, self-controlled study. J Eur Acad Dermatol Venereol 2020; 34:e441-e443. [PMID: 32421878 PMCID: PMC7276886 DOI: 10.1111/jdv.16638] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- L Dong
- Department of Dermatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology (HUST), Wuhan, China.,Hubei Engineering Research Center for Skin Repair and Theranostics, Wuhan, China
| | - L Yang
- Department of Dermatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology (HUST), Wuhan, China.,School of Medicine, Hunan Normal University, Changsha, China
| | - Y Li
- Department of Dermatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology (HUST), Wuhan, China.,Hubei Engineering Research Center for Skin Repair and Theranostics, Wuhan, China
| | - J Yang
- Department of Dermatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology (HUST), Wuhan, China.,Hubei Engineering Research Center for Skin Repair and Theranostics, Wuhan, China
| | - X An
- Department of Dermatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology (HUST), Wuhan, China.,Hubei Engineering Research Center for Skin Repair and Theranostics, Wuhan, China
| | - L Yang
- Department of Dermatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology (HUST), Wuhan, China.,Hubei Engineering Research Center for Skin Repair and Theranostics, Wuhan, China
| | - N Zhou
- Department of Dermatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology (HUST), Wuhan, China.,Hubei Engineering Research Center for Skin Repair and Theranostics, Wuhan, China
| | - Y Zhang
- Department of Dermatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology (HUST), Wuhan, China.,Hubei Engineering Research Center for Skin Repair and Theranostics, Wuhan, China
| | - H Du
- Department of Dermatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology (HUST), Wuhan, China.,Hubei Engineering Research Center for Skin Repair and Theranostics, Wuhan, China
| | - J Lan
- Department of Dermatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology (HUST), Wuhan, China.,Hubei Engineering Research Center for Skin Repair and Theranostics, Wuhan, China
| | - Z Song
- Department of Dermatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology (HUST), Wuhan, China.,The Second Clinical Medical College, Chongqing Medical University, Chongqing, China
| | - X Miao
- Department of Epidemiology and Biostatistics, School of Public Health, Tongji Medical College, HUST, Wuhan, China
| | - J Zhu
- School of Chemistry and Chemical Engineering, HUST, Wuhan, China
| | - J Tao
- Department of Dermatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology (HUST), Wuhan, China.,Hubei Engineering Research Center for Skin Repair and Theranostics, Wuhan, China
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Li X, Fan K, Yang R, Du X, Qu B, Miao X, Lu L. A long lifetime ratiometrically luminescent tetracycline nanoprobe based on Ir(III) complex-doped and Eu 3+-functionalized silicon nanoparticles. J Hazard Mater 2020; 386:121929. [PMID: 31895999 DOI: 10.1016/j.jhazmat.2019.121929] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [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: 10/11/2019] [Revised: 12/17/2019] [Accepted: 12/17/2019] [Indexed: 06/10/2023]
Abstract
Different from fluorescent dyes-doped or carbon materials-based ratiometric tetracycline nanoprobes, herein, a new Ir(III) complex-doped and europium(III) ion (Eu3+)-functionalized silicon nanoparticles (Ir(III)@SiNPs-Eu3+) with long luminescent lifetimes was firstly fabricated for selective detection of tetracycline (TC) in complex systems through time-resolved emission spectra (TRES) measurement. In the presence of TC, the red phosphorescence of Eu3+ is greatly enhanced by adsorption energy transfer emission (AETE) of TC, while the strong green luminescence of Ir(III)@SiNPs is quenched by the inner filtration effect (IFE) of TC. Based on these striking emission changes, Ir(III)@SiNPs-Eu3+ can sensitively detect TC in the linear range of 0.01-20 μM with a detection limit of 4.9 × 10-3 μM. Benefitting from the long lifetime of Ir(III)@SiNPs-Eu3+, the nanoprobe demonstrates excellent TC detection performance through TRES in high background system of 5 % human serum. Furthermore, the formed Ir(III)@SiNPs-Eu3+/TC complex can be used to sensitively recognize Hg2+ via a ratiometric luminescence mode. Notably, the cytotoxicity of Ir(III)@SiNPs-Eu3+ is very low and thus the sensitive monitoring the detection of Ir(III)@SiNPs-Eu3+ to TC and Hg2+ also works well in porcine renal cells, demonstrating high application potential in real samples.
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Affiliation(s)
- Xiaotong Li
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao 266109, China
| | - Kaimei Fan
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao 266109, China
| | - Ruimei Yang
- College of Veterinary Medicine, Qingdao Agricultural University, Qingdao 266109, China
| | - Xiuxiu Du
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao 266109, China
| | - Baohan Qu
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao 266109, China
| | - Xiangmin Miao
- School of Life Science, Jiangsu Normal University, Xuzhou 221116, China.
| | - Lihua Lu
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao 266109, China.
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Xue N, Wu S, Li Z, Miao X. Ultrasensitive and label-free detection of ATP by using gold nanorods coupled with enzyme assisted target recycling amplification. Anal Chim Acta 2019; 1104:117-124. [PMID: 32106942 DOI: 10.1016/j.aca.2019.12.073] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Revised: 12/02/2019] [Accepted: 12/28/2019] [Indexed: 11/18/2022]
Abstract
Abnormal concentration of adenosine triphosphate (ATP) is directly asscociate with several diseases. Thus, sensitive detection of ATP is essential to early diagnosis of disease. Herein, we described an ultrasensitive strategy for ATP detection by using positively charged gold nanorods ((+)AuNRs) as an efficient fluorescence quenching platform, coupled with exonuclease Ⅲ (Exo Ⅲ) assisted target recycling amplification. To construct the sensor, DNA template that contained ATP aptamer was used for the formation of Ag nanoclusters signal probe (DNA/AgNCs), the structure of it could change to duplex after the interaction of it with ATP. Such DNA template or duplex DNA product could electrostatically adsorb onto (+)AuNRs surface, resulting in the quenching of the fluorescence signal due to the vicinity of AgNCs to (+)AuNRs. With the addition of Exo Ⅲ, DNA duplex could be hydrolyzed and released from (+)AuNRs surface, leading to the recovery of a strong fluorescent signal, while ATP could be regenerated for next target recycling. Combing the good fluorescence quenching ability of (+)AuNRs and the Exo Ⅲ assisted signal amplification, a low detection limit of 26 pM was achieved for ATP detection. Notably, the proposed method can be successfully applied for detecting ATP in serum samples, indicating a potential application value in early cancer diagnosis.
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Affiliation(s)
- Ning Xue
- School of Life Science, Jiangsu Normal University, Xuzhou, 221116, China
| | - Shujie Wu
- School of Life Science, Jiangsu Normal University, Xuzhou, 221116, China
| | - Zongbing Li
- School of Life Science, Jiangsu Normal University, Xuzhou, 221116, China
| | - Xiangmin Miao
- School of Life Science, Jiangsu Normal University, Xuzhou, 221116, China.
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Gong J, Tian J, Lou J, Wang X, Ke J, Li J, Yang Y, Gong Y, Zhu Y, Zou D, Peng X, Yang N, Mei S, Zhong R, Chang J, Miao X. A polymorphic MYC response element in KBTBD11 influences colorectal cancer risk, especially in interaction with an MYC-regulated SNP rs6983267. Ann Oncol 2019; 29:632-639. [PMID: 29267898 DOI: 10.1093/annonc/mdx789] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
Background MYC is a well-established cancer driver gene regulating the expression of numerous genes, indicating that polymorphisms in MYC response elements could affect tumorigenesis through altering MYC regulation. We performed integrative multistage study to evaluate the effects of variants in MYC response elements and colorectal cancer (CRC) risk. Patients and methods We systematically integrated ChIP-Seq, DNase-Seq and transcription factor motif data to screen variants with potential ability to affect the MYC binding affinity. Then, we conducted a two-stage case-control study, totally consisting of 4830 CRC cases and 4759 controls in Chinese population to identify risk polymorphisms and interactions. The effects of risk variants were confirmed by functional assays in CRC LoVo, SW480 and HCT15 cells. Results We identified a novel polymorphism rs11777210 in KBTBD11 significantly associated with CRC susceptibility (P = 2.43 × 10-12). Notably, we observed a significant interaction between rs11777210 and MYC nearby rs6983267 (P-multi = 0.003, P-add = 0.005), subjects carrying rs6983267 GG and rs11777210 CC genotypes showing higher susceptibility to CRC (2.83-fold) than those carrying rs6983267 TT and rs11777210 TT genotypes. We further demonstrated that rs6983267 T > G increased MYC expression, and MYC bound to and negatively regulated KBTBD11 expression when the rs11777210 C risk allele was present. KBTBD11 was downregulated in tumor tissues, and KBTBD11 knockdown promoted cell proliferation and inhibited cell apoptosis. Conclusion The rs11777210 is a potential predictive biomarker of CRC susceptibility, and KBTBD11 functions as a putative tumor suppressor in tumorigenesis. Our study highlighted the high CRC risk of people carrying rs6983267 G and rs11777210 C alleles, and provided possible biological mechanism of the interaction.
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Affiliation(s)
- J Gong
- Department of Epidemiology and Biostatistics, Huazhong University of Science and Technology, Wuhan, China; State Key Laboratory of Environment Health (Incubation), MOE (Ministry of Education) Key Laboratory of Environment & Health, Ministry of Environmental Protection Key Laboratory of Environment and Health (Wuhan), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - J Tian
- Department of Epidemiology and Biostatistics, Huazhong University of Science and Technology, Wuhan, China; State Key Laboratory of Environment Health (Incubation), MOE (Ministry of Education) Key Laboratory of Environment & Health, Ministry of Environmental Protection Key Laboratory of Environment and Health (Wuhan), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - J Lou
- Department of Epidemiology and Biostatistics, Huazhong University of Science and Technology, Wuhan, China; State Key Laboratory of Environment Health (Incubation), MOE (Ministry of Education) Key Laboratory of Environment & Health, Ministry of Environmental Protection Key Laboratory of Environment and Health (Wuhan), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - X Wang
- Department of Epidemiology and Biostatistics, Huazhong University of Science and Technology, Wuhan, China; State Key Laboratory of Environment Health (Incubation), MOE (Ministry of Education) Key Laboratory of Environment & Health, Ministry of Environmental Protection Key Laboratory of Environment and Health (Wuhan), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - J Ke
- Department of Epidemiology and Biostatistics, Huazhong University of Science and Technology, Wuhan, China; State Key Laboratory of Environment Health (Incubation), MOE (Ministry of Education) Key Laboratory of Environment & Health, Ministry of Environmental Protection Key Laboratory of Environment and Health (Wuhan), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - J Li
- Department of Epidemiology and Biostatistics, Huazhong University of Science and Technology, Wuhan, China; State Key Laboratory of Environment Health (Incubation), MOE (Ministry of Education) Key Laboratory of Environment & Health, Ministry of Environmental Protection Key Laboratory of Environment and Health (Wuhan), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Y Yang
- Department of Epidemiology and Biostatistics, Huazhong University of Science and Technology, Wuhan, China; State Key Laboratory of Environment Health (Incubation), MOE (Ministry of Education) Key Laboratory of Environment & Health, Ministry of Environmental Protection Key Laboratory of Environment and Health (Wuhan), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Y Gong
- Department of Epidemiology and Biostatistics, Huazhong University of Science and Technology, Wuhan, China; State Key Laboratory of Environment Health (Incubation), MOE (Ministry of Education) Key Laboratory of Environment & Health, Ministry of Environmental Protection Key Laboratory of Environment and Health (Wuhan), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Y Zhu
- Department of Epidemiology and Biostatistics, Huazhong University of Science and Technology, Wuhan, China; State Key Laboratory of Environment Health (Incubation), MOE (Ministry of Education) Key Laboratory of Environment & Health, Ministry of Environmental Protection Key Laboratory of Environment and Health (Wuhan), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - D Zou
- Department of Epidemiology and Biostatistics, Huazhong University of Science and Technology, Wuhan, China; State Key Laboratory of Environment Health (Incubation), MOE (Ministry of Education) Key Laboratory of Environment & Health, Ministry of Environmental Protection Key Laboratory of Environment and Health (Wuhan), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - X Peng
- Department of Epidemiology and Biostatistics, Huazhong University of Science and Technology, Wuhan, China; State Key Laboratory of Environment Health (Incubation), MOE (Ministry of Education) Key Laboratory of Environment & Health, Ministry of Environmental Protection Key Laboratory of Environment and Health (Wuhan), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - N Yang
- Department of Epidemiology and Biostatistics, Huazhong University of Science and Technology, Wuhan, China; State Key Laboratory of Environment Health (Incubation), MOE (Ministry of Education) Key Laboratory of Environment & Health, Ministry of Environmental Protection Key Laboratory of Environment and Health (Wuhan), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - S Mei
- Department of Epidemiology and Biostatistics, Huazhong University of Science and Technology, Wuhan, China; State Key Laboratory of Environment Health (Incubation), MOE (Ministry of Education) Key Laboratory of Environment & Health, Ministry of Environmental Protection Key Laboratory of Environment and Health (Wuhan), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - R Zhong
- Department of Epidemiology and Biostatistics, Huazhong University of Science and Technology, Wuhan, China; State Key Laboratory of Environment Health (Incubation), MOE (Ministry of Education) Key Laboratory of Environment & Health, Ministry of Environmental Protection Key Laboratory of Environment and Health (Wuhan), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - J Chang
- Department of Epidemiology and Biostatistics, Huazhong University of Science and Technology, Wuhan, China; State Key Laboratory of Environment Health (Incubation), MOE (Ministry of Education) Key Laboratory of Environment & Health, Ministry of Environmental Protection Key Laboratory of Environment and Health (Wuhan), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - X Miao
- Department of Epidemiology and Biostatistics, Huazhong University of Science and Technology, Wuhan, China; State Key Laboratory of Environment Health (Incubation), MOE (Ministry of Education) Key Laboratory of Environment & Health, Ministry of Environmental Protection Key Laboratory of Environment and Health (Wuhan), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
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Xing K, Xing Y, Liu Y, Zhang Y, Shen X, Li X, Miao X, Feng Z, Peng X, Qin S. Fungicidal effect of chitosan via inducing membrane disturbance against Ceratocystis fimbriata. Carbohydr Polym 2018; 192:95-103. [DOI: 10.1016/j.carbpol.2018.03.053] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Revised: 02/13/2018] [Accepted: 03/16/2018] [Indexed: 01/19/2023]
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26
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Hua S, Miao X, Mao W, Hua L, Chen J, Li B. A novel frameshift SERPINB7 mutation in a Chinese case with Nagashima-type palmoplantar keratosis: case report and review of the literature. Clin Exp Dermatol 2018; 43:953-955. [PMID: 29888455 DOI: 10.1111/ced.13682] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/15/2018] [Indexed: 11/29/2022]
Affiliation(s)
- S Hua
- Yueyang Hospital of Integrative Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, 110 Ganhe Road, Shanghai, 200437, China.,Dermatology of Shanghai Traditional, Chinese Medicine Research Institute, Shanghai, China
| | - X Miao
- Yueyang Hospital of Integrative Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, 110 Ganhe Road, Shanghai, 200437, China.,Dermatology of Shanghai Traditional, Chinese Medicine Research Institute, Shanghai, China
| | - W Mao
- Yueyang Hospital of Integrative Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, 110 Ganhe Road, Shanghai, 200437, China.,Dermatology of Shanghai Traditional, Chinese Medicine Research Institute, Shanghai, China
| | - L Hua
- Yueyang Hospital of Integrative Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, 110 Ganhe Road, Shanghai, 200437, China.,Dermatology of Shanghai Traditional, Chinese Medicine Research Institute, Shanghai, China
| | - J Chen
- Yueyang Hospital of Integrative Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, 110 Ganhe Road, Shanghai, 200437, China.,Dermatology of Shanghai Traditional, Chinese Medicine Research Institute, Shanghai, China
| | - B Li
- Yueyang Hospital of Integrative Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, 110 Ganhe Road, Shanghai, 200437, China.,Dermatology of Shanghai Traditional, Chinese Medicine Research Institute, Shanghai, China
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Miao X, Rahman MFU, Jiang L, Min Y, Tan S, Xie H, Lee L, Wang M, Malmström RE, Lui WO, Li N. Thrombin-reduced miR-27b attenuates platelet angiogenic activities in vitro via enhancing platelet synthesis of anti-angiogenic thrombospondin-1. J Thromb Haemost 2018; 16:791-801. [PMID: 29442415 DOI: 10.1111/jth.13978] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2017] [Indexed: 12/29/2022]
Abstract
Essentials It is unclear if platelet micro-RNAs can regulate de novo protein synthesis of platelets. Platelet de novo protein synthesis of thrombospondin-1 (TSP-1) was induced by thrombin. Thrombin stimulation in vitro altered platelet microRNA profiles, including decreased miR-27b. Decreased miR-27b hampers platelet angiogenic activities via enhancing de novo TSP-1 synthesis. SUMMARY Background Platelets can synthesize proteins upon activation. Platelets contain a number of microRNAs (miRNA) and a fully functional miRNA effector machinery. It is, however, unclear if platelet miRNAs can regulate protein synthesis of platelets, and whether the regulation may produce a physiological impact. Objectives To investigate if and how platelet miRNAs regulate de novo syntheses of angiogenic regulators and subsequently modulate platelet angiogenic activities. Methods and Results Microarray-based miRNA profiling showed that thrombin stimulation in vitro down- or up-regulated a number of platelet miRNAs, both in the total platelet miRNAs and in Ago2-associated miRNAs. Among those altered miRNAs, miR-27b was down-regulated in both the total and Ago2-immunoprecipitated miRNA profiles of platelets, which was confirmed by reverse transcription-quantitative PCR (RT-qPCR). Using western blotting assays, we showed that thrombin induced platelet de novo synthesis of thrombospondin-1, and that the level of thrombospondin-1 synthesis could reach a level of 3-5-fold higher than that before thrombin stimulation. With either the platelet precursor megakaryocyte cell line MEG-01 cells or mature platelets, we demonstrated that transfection of miR-27b mimic, but not the negative control of miRNA mimic, markedly reduced thrombospondin-1 protein levels. The latter subsequently enhanced platelet-dependent endothelial tube formation on matrigel. Conclusions Thrombin stimulation in vitro reduces platelet miR-27b levels that may markedly enhance thrombin-evoked platelet de novo synthesis of thrombospondin-1. Elevation of platelet miR-27b by transfection inhibits thrombospondin-1 synthesis, and subsequently enhances platelet pro-angiogenic activities. Hence, platelet activation-dependent reduction of miR-27b levels may represent a novel negative regulatory mechanism of platelet angiogenic activities.
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Affiliation(s)
- X Miao
- Department of Medicine-Solna, Clinical Pharmacology Group, Karolinska Institutet, Stockholm, Sweden
| | - M F-U Rahman
- Department of Medicine-Solna, Clinical Pharmacology Group, Karolinska Institutet, Stockholm, Sweden
| | - L Jiang
- Department of Medicine-Solna, Clinical Pharmacology Group, Karolinska Institutet, Stockholm, Sweden
- Department of Pathology, Zhejiang Provincial Key Laboratory of Pathophysiology, Ningbo University School of Medicine, Ningbo, China
| | - Y Min
- Department of Medicine-Solna, Clinical Pharmacology Group, Karolinska Institutet, Stockholm, Sweden
| | - S Tan
- Department of Medicine-Solna, Clinical Pharmacology Group, Karolinska Institutet, Stockholm, Sweden
| | - H Xie
- Department of Oncology-Pathology and Cancer Center Karolinska, Karolinska University Hospital-Solna, Stockholm, Sweden
- School of Basic Medical Sciences, Tianjin Medical University, Tianjin, China
| | - L Lee
- Department of Oncology-Pathology and Cancer Center Karolinska, Karolinska University Hospital-Solna, Stockholm, Sweden
| | - M Wang
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - R E Malmström
- Department of Medicine-Solna, Clinical Pharmacology Group, Karolinska Institutet, Stockholm, Sweden
- Department of Clinical Pharmacology, Karolinska University Hospital-Solna, Stockholm, Sweden
| | - W-O Lui
- Department of Oncology-Pathology and Cancer Center Karolinska, Karolinska University Hospital-Solna, Stockholm, Sweden
| | - N Li
- Department of Medicine-Solna, Clinical Pharmacology Group, Karolinska Institutet, Stockholm, Sweden
- Department of Clinical Pharmacology, Karolinska University Hospital-Solna, Stockholm, Sweden
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Yu C, Wang J, Wang F, Han X, Hu H, Yuan J, Miao X, Yao P, Wei S, Wang Y, Liang Y, Chen W, Zhang X, Guo H, Yang H, Tang Y, Zheng D, Wu T, He M. Inverse association between plasma homocysteine concentrations and type 2 diabetes mellitus among a middle-aged and elderly Chinese population. Nutr Metab Cardiovasc Dis 2018; 28:278-284. [PMID: 29337020 DOI: 10.1016/j.numecd.2017.11.009] [Citation(s) in RCA: 2] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/20/2017] [Revised: 11/16/2017] [Accepted: 11/27/2017] [Indexed: 11/25/2022]
Abstract
BACKGROUND AND AIMS Plasma homocysteine concentrations have been reported to be associated with type 2 diabetes mellitus (T2DM) with controversial findings. The aim of the present study was to investigate the association between plasma homocysteine concentrations and T2DM. METHODS AND RESULTS A cross-sectional study including 19,085 eligible participants derived from the Dongfeng-Tongji cohort was conducted. Plasma homocysteine concentrations were measured by Abbott Architect i2000 Automatic analyzer and T2DM was defined according to American Diabetes Association criteria. Logistic regression model was used to explore the association between plasma homocysteine concentrations and T2DM. The prevalence of T2DM was 19.0% in the whole population (mean age 62.9 years), 21.8% in males, and 17.1% in females. In the multivariable logistic regression analyses, compared with those in the lowest quintile, the OR (95% CI) of T2DM was 1.05 (0.92-1.21), 0.99 (0.86-1.14), 0.90 (0.78-1.05), and 0.77 (0.66-0.90) for quintile 2 to quintile 5 of homocysteine concentrations after adjustment for potential confounders (P for trend < 0.0001). Homocysteine concentrations were associated with decreased T2DM prevalence risk (OR = 0.88 per SD increase of homocysteine concentration; 95% CI: 0.84-0.93). A significant interaction between homocysteine concentrations and drinking status on T2DM prevalence risk was observed (P for interaction = 0.03). The inverse association of plasma homocysteine concentrations with T2DM prevalence risk was observed in non-drinkers but not in current drinkers. CONCLUSION Plasma homocysteine concentrations were inversely correlated with T2DM among a middle-aged and elderly Chinese population.
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Affiliation(s)
- C Yu
- Department of Occupational and Environmental Health and State Key Laboratory of Environmental Health for Incubating, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - J Wang
- Department of Occupational and Environmental Health and State Key Laboratory of Environmental Health for Incubating, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - F Wang
- Department of Occupational and Environmental Health and State Key Laboratory of Environmental Health for Incubating, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - X Han
- Department of Occupational and Environmental Health and State Key Laboratory of Environmental Health for Incubating, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - H Hu
- Department of Occupational and Environmental Health and State Key Laboratory of Environmental Health for Incubating, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - J Yuan
- Department of Occupational and Environmental Health and State Key Laboratory of Environmental Health for Incubating, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - X Miao
- Department of Occupational and Environmental Health and State Key Laboratory of Environmental Health for Incubating, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - P Yao
- Department of Occupational and Environmental Health and State Key Laboratory of Environmental Health for Incubating, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - S Wei
- Department of Occupational and Environmental Health and State Key Laboratory of Environmental Health for Incubating, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Y Wang
- Department of Occupational and Environmental Health and State Key Laboratory of Environmental Health for Incubating, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Y Liang
- Department of Occupational and Environmental Health and State Key Laboratory of Environmental Health for Incubating, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - W Chen
- Department of Occupational and Environmental Health and State Key Laboratory of Environmental Health for Incubating, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - X Zhang
- Department of Occupational and Environmental Health and State Key Laboratory of Environmental Health for Incubating, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - H Guo
- Department of Occupational and Environmental Health and State Key Laboratory of Environmental Health for Incubating, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - H Yang
- Dongfeng Central Hospital, Dongfeng Motor Corporation and Hubei University of Medicine, Shiyan, Hubei, China
| | - Y Tang
- Department of Occupational and Environmental Health and State Key Laboratory of Environmental Health for Incubating, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - D Zheng
- Department of Occupational and Environmental Health and State Key Laboratory of Environmental Health for Incubating, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - T Wu
- Department of Occupational and Environmental Health and State Key Laboratory of Environmental Health for Incubating, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - M He
- Department of Occupational and Environmental Health and State Key Laboratory of Environmental Health for Incubating, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China.
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Wang F, Wang J, Li Y, Han X, Hu H, Yu C, Yuan J, Yao P, Miao X, Wei S, Wang Y, Chen W, Liang Y, Guo H, Zhang X, Yang H, Wu T, He M. Associations between daily cooking duration and the prevalence of diabetes and prediabetes in a middle-aged and elderly Chinese population: A cross-sectional study. Indoor Air 2018; 28:238-246. [PMID: 29028277 DOI: 10.1111/ina.12434] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2017] [Accepted: 10/06/2017] [Indexed: 06/07/2023]
Abstract
Experimental and epidemiological studies indicated that ambient air pollution was positively associated with diabetes. Few studies investigated the associations between household air pollution, for example, daily cooking duration and diabetes or prediabetes. We conducted a cross-sectional study to investigate the associations of daily cooking duration with the prevalence of diabetes and prediabetes among a middle-aged and elderly population. A total of 26 089 individuals (11 250 males and 14 839 females) derived from the Dongfeng-Tongji cohort study were included. Daily cooking duration was assessed by questionnaire. Diabetes and prediabetes were identified according to the criterion of American Diabetes Association. No significant association was observed between daily cooking duration and the prevalence risk of diabetes (odds ratio[OR] = 0.97, 95% confidence interval[CI]: [0.81-1.16], P for trend = .74); however, longer daily cooking duration was associated with higher prevalence risk of prediabetes (OR = 1.26, 95% CI: 1.07-1.47; P for trend = .003) and hyperglycemia (OR = 1.21, 95% CI: 1.05-1.41; P for trend = .005). Our study suggested that daily cooking duration was not associated with diabetes but with higher prevalence risk of prediabetes/hyperglycemia in a middle-aged and elderly Chinese population.
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Affiliation(s)
- F Wang
- Department of Occupational and Environmental Health, State Key Laboratory of Environmental Health for Incubating, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - J Wang
- Department of Occupational and Environmental Health, State Key Laboratory of Environmental Health for Incubating, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Y Li
- Department of Occupational and Environmental Health, State Key Laboratory of Environmental Health for Incubating, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - X Han
- Department of Occupational and Environmental Health, State Key Laboratory of Environmental Health for Incubating, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - H Hu
- Department of Occupational and Environmental Health, State Key Laboratory of Environmental Health for Incubating, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - C Yu
- Department of Occupational and Environmental Health, State Key Laboratory of Environmental Health for Incubating, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - J Yuan
- Department of Occupational and Environmental Health, State Key Laboratory of Environmental Health for Incubating, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - P Yao
- Department of Occupational and Environmental Health, State Key Laboratory of Environmental Health for Incubating, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - X Miao
- Department of Epidemiology and Biostatistics, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - S Wei
- Department of Epidemiology and Biostatistics, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Y Wang
- Department of Occupational and Environmental Health, State Key Laboratory of Environmental Health for Incubating, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - W Chen
- Department of Occupational and Environmental Health, State Key Laboratory of Environmental Health for Incubating, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Y Liang
- Department of Occupational and Environmental Health, State Key Laboratory of Environmental Health for Incubating, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - H Guo
- Department of Occupational and Environmental Health, State Key Laboratory of Environmental Health for Incubating, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - X Zhang
- Department of Occupational and Environmental Health, State Key Laboratory of Environmental Health for Incubating, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - H Yang
- Dongfeng Central Hospital, Dongfeng Motor Corporation and Hubei University of Medicine, Shiyan, China
| | - T Wu
- Department of Occupational and Environmental Health, State Key Laboratory of Environmental Health for Incubating, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - M He
- Department of Occupational and Environmental Health, State Key Laboratory of Environmental Health for Incubating, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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Ma H, Li Z, Xue N, Cheng Z, Miao X. A gold nanoparticle based fluorescent probe for simultaneous recognition of single-stranded DNA and double-stranded DNA. Mikrochim Acta 2018; 185:93. [DOI: 10.1007/s00604-017-2633-1] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2017] [Accepted: 12/22/2017] [Indexed: 12/22/2022]
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Hu H, Wang J, Han X, Li Y, Wang F, Yuan J, Miao X, Yang H, He M. BMI, Waist Circumference and All-Cause Mortality in a Middle-Aged and Elderly Chinese Population. J Nutr Health Aging 2018; 22:975-981. [PMID: 30272102 DOI: 10.1007/s12603-018-1047-z] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
OBJECTIVE To investigate the association of obesity and all-cause mortality in a sample of middle-aged and elderly population. DESIGN AND SETTING Information of participants was collected in the Dongfeng-Tongji study, a perspective cohort study of Chinese occupational population. The main outcome was risk of death after 8.5 years of follow-up. PARTICIPANTS AND MEASUREMENTS We examined the association of BMI, waist circumference (WC, and waist-height ratio (WHtR) with all-cause mortality in the Dongfeng-Tongji cohort study (n=26,143). Cox proportional hazard models were used to estimate hazard ratios (HRs) and 95% confidence intervals (CI) for all-cause mortality. Area under the receiver operating characteristic curves and net reclassification improvement (NRI) were used to calculate the power of prediction models. RESULTS During a mean of 8.5 years of follow-up, 2,246 deaths were identified. There is a U-shaped association of BMI with all-cause mortality in the middle-aged and elderly Chinese population. Compared with individuals with normal BMI, underweight was positively (HR=2.16, 95% CI: 1.73, 2.69) while overweight (HR=0.75, 95% CI: 0.67, 0.84) and obesity (HR=0.67, 95% CI: 0.56, 0.79) were negatively associated with all-cause mortality after adjustment for potential confounders including WC. In contrast, WC (Q5 vs. Q1, HR=1.55, 95% CI: 1.29, 1.86) and WHtR (Q5 vs.Q1, HR=1.69, 95% CI: 1.40, 2.04) were positively associated with mortality after further adjustment for BMI (P trend < 0.001). Addition of both BMI and WC into the all-cause mortality predictive model significantly increased AUC (P =0.0002) and NRI (NRI = 2.57%, P = 0.0007). CONCLUSIONS BMI and WC/WHtR were independently associated with all-cause mortality after mutual adjustment. Combination of BMI and WC/WHtR improved the predictive ability of all-cause mortality risk in the middle-aged and elderly population.
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Affiliation(s)
- H Hu
- Meian He, MD, PhD, Professor, Department of Occupational and Environmental Health and State Key Laboratory of Environmental Health for Incubating, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Road, Wuhan, Hubei 430030, China. Tel: 86-27-83657914; Fax: 86-27-83657765; E-mail:
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Miao X, Cheng Z, Ma H, Li Z, Xue N, Wang P. Label-Free Platform for MicroRNA Detection Based on the Fluorescence Quenching of Positively Charged Gold Nanoparticles to Silver Nanoclusters. Anal Chem 2017; 90:1098-1103. [DOI: 10.1021/acs.analchem.7b01991] [Citation(s) in RCA: 139] [Impact Index Per Article: 19.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Xiangmin Miao
- School
of Life Science, and ‡School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou 221116, China
| | - Zhiyuan Cheng
- School
of Life Science, and ‡School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou 221116, China
| | - Haiyan Ma
- School
of Life Science, and ‡School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou 221116, China
| | - Zongbing Li
- School
of Life Science, and ‡School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou 221116, China
| | - Ning Xue
- School
of Life Science, and ‡School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou 221116, China
| | - Po Wang
- School
of Life Science, and ‡School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou 221116, China
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Wang P, Wang M, Zhou F, Yang G, Qu L, Miao X. Development of a paper-based, inexpensive, and disposable electrochemical sensing platform for nitrite detection. Electrochem commun 2017. [DOI: 10.1016/j.elecom.2017.06.006] [Citation(s) in RCA: 57] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
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Xing K, Liu Y, Shen X, Zhu X, Li X, Miao X, Feng Z, Peng X, Qin S. Effect of O-chitosan nanoparticles on the development and membrane permeability of Verticillium dahliae. Carbohydr Polym 2017; 165:334-343. [DOI: 10.1016/j.carbpol.2017.02.063] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2016] [Revised: 01/17/2017] [Accepted: 02/16/2017] [Indexed: 01/09/2023]
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Miao X, Cheng Z, Li Z, Wang P. A novel sensing platform for sensitive cholesterol detection by using positively charged gold nanoparticles. Biochem Eng J 2017. [DOI: 10.1016/j.bej.2016.10.022] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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Chen H, Qiu W, Zhang Q, Wang J, Shi Z, Liu J, Lian Z, Feng H, Miao X, Zhou H. Comparisons of the efficacy and tolerability of mycophenolate mofetil and azathioprine as treatments for neuromyelitis optica and neuromyelitis optica spectrum disorder. Eur J Neurol 2016; 24:219-226. [PMID: 27783452 DOI: 10.1111/ene.13186] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2016] [Accepted: 09/16/2016] [Indexed: 02/05/2023]
Affiliation(s)
- H. Chen
- Department of Neurology; West China Hospital of Sichuan University; Chengdu China
| | - W. Qiu
- Department of Neurology; Third Affiliated Hospital of Sun Yat-sen University; Guangzhou China
| | - Q. Zhang
- Department of Neurology; West China Hospital of Sichuan University; Chengdu China
| | - J. Wang
- Department of Neurology; Third Affiliated Hospital of Sun Yat-sen University; Guangzhou China
| | - Z. Shi
- Department of Neurology; West China Hospital of Sichuan University; Chengdu China
| | - J. Liu
- Department of Neurology; West China Hospital of Sichuan University; Chengdu China
| | - Z. Lian
- Department of Neurology; West China Hospital of Sichuan University; Chengdu China
| | - H. Feng
- Department of Neurology; West China Hospital of Sichuan University; Chengdu China
| | - X. Miao
- Department of Neurology; West China Hospital of Sichuan University; Chengdu China
| | - H. Zhou
- Department of Neurology; West China Hospital of Sichuan University; Chengdu China
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Yuan WJ, Ye S, Du LH, Li SM, Miao X, Shang FD. Isolation and characterization of microsatellite markers for Dendranthema morifolium (Asteraceae) using next-generation sequencing. Genet Mol Res 2016; 15:gmr8765. [PMID: 27808375 DOI: 10.4238/gmr.15048765] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Dendranthema morifolium (Asteraceae) is a perennial herbaceous plant native to China. A long history of artificial crossings may have resulted in complex genetic background and decreased genetic diversity. To protect the genetic diversity of D. morifolium and enabling breeding of new D. morifolium cultivars, we developed a set of molecular markers. We used pyrosequencing of an enriched microsatellite library by Roche 454 FLX+ platform, to isolate D. morifolium simple sequence repeats (SSRs). A total of 32,863 raw reads containing 2251 SSRs were obtained. To test the effectiveness of these SSR markers, we designed primers by randomly selecting 100 novel SSRs, and amplified them across 60 cultivars representing five different petal shape groups. Sixteen SSRs were polymorphic with the number of alleles ranging from 6 to 19, and their expected and observed heterozygosities ranging from 0.477 to 0.848, and 0.250 to 0.804, respectively. The polymorphism information content ranged from 0.459 to 0.854 and the inbreeding coefficient ranged from -0.119 to 0.759. An unweighted pair-group method arithmetic average analysis was performed to survey the phylogenetic relationships of these 60 cultivars and five clusters were identified. These markers can be used for investigating genetic relationships and identifying elite alleles through linkage and association analyses.
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Affiliation(s)
- W-J Yuan
- Institute of Chinese Materia Medica, Henan University, Kaifeng, China
| | - S Ye
- College of Life Sciences, Henan University, Kaifeng, China
| | - L-H Du
- Institute of Chinese Materia Medica, Henan University, Kaifeng, China
| | - S-M Li
- Institute of Chinese Materia Medica, Henan University, Kaifeng, China
| | - X Miao
- College of Life Sciences, Henan University, Kaifeng, China
| | - F-D Shang
- College of Life Sciences, Henan University, Kaifeng, China
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Miao X, Ning X, Li Z, Cheng Z. Sensitive detection of miRNA by using hybridization chain reaction coupled with positively charged gold nanoparticles. Sci Rep 2016; 6:32358. [PMID: 27576601 PMCID: PMC5006024 DOI: 10.1038/srep32358] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2016] [Accepted: 08/04/2016] [Indexed: 01/21/2023] Open
Abstract
Positively charged gold nanoparticles (+)AuNPs can adsorb onto the negatively charged surface of single-stranded DNA (ssDNA) or double-stranded DNA (dsDNA). Herein, long-range dsDNA polymers could form based on the hybridization chain reaction (HCR) of two hairpin probes (H1 and H2) by using miRNA-21 as an initiator. (+)AuNPs could adsorb onto the negatively charged surface of such long-range dsDNA polymers based on the electrostatic adsorption, which directly resulted in the precipitation of (+)AuNPs and the decrease of (+)AuNPs absorption spectra. Under optimal conditions, miRNA-21 detection could be realized in the range of 20 pM-10 nM with a detection limit of 6.8 pM. In addition, (+)AuNPs used here are much more stable than commonly used negatively charged gold nanoparticles ((−)AuNPs) in mixed solution that contained salt, protein or other metal ions. Importantly, the assay could realize the detection of miRNA in human serum samples.
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Affiliation(s)
- Xiangmin Miao
- School of Life Science, Jiangsu Normal University, Xuzhou 221116, PR China
| | - Xue Ning
- KeWen College, JiangSu Normal University, Xuzhou 221116, PR China
| | - Zongbing Li
- School of Life Science, Jiangsu Normal University, Xuzhou 221116, PR China
| | - Zhiyuan Cheng
- School of Life Science, Jiangsu Normal University, Xuzhou 221116, PR China
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Miao X, Wang W, Kang T, Liu J, Shiu KK, Leung CH, Ma DL. Ultrasensitive electrochemical detection of miRNA-21 by using an iridium(III) complex as catalyst. Biosens Bioelectron 2016; 86:454-458. [PMID: 27424263 DOI: 10.1016/j.bios.2016.07.001] [Citation(s) in RCA: 69] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2016] [Revised: 06/27/2016] [Accepted: 07/01/2016] [Indexed: 11/17/2022]
Abstract
The ultrasensitive electrochemical detection of miRNA-21 was realized by using a novel redox and catalytic "all-in-one" mechanism with an iridium(III) complex as a catalyst. To construct such a sensor, a capture probe (CP) was firstly immobilized onto the gold electrode surface. In the presence of miRNA-21, a sandwiched DNA complex could form between CP and a methylene blue (MB) labeled G-rich detection probe modified onto a gold nanoparticle (AuNP) surface (DP-AuNPs). Upon addition of K(+), the structure of DP changed to a G-quadruplex. Then, the iridium(III) complex could selectively interact with the G-quadruplex, catalyzing the reduction of H2O2, which was accompanied by an electrochemical signal change using MB as an electron mediator. Under optimal conditions, the electrochemical signal of MB reduction peak was proportional to miRNA concentration in the range from 5.0 fM to 1.0 pM, with a detection limit of 1.6 fM. In addition, satisfactory results were obtained for miRNA-21 detection in human serum samples, indicating a potential application of the sensor for bioanalysis.
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Affiliation(s)
- Xiangmin Miao
- School of Life Science, Jiangsu Normal University, Xuzhou 221116, PR China; Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China
| | - Wanhe Wang
- Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China
| | - Tianshu Kang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao, China
| | - Jinbiao Liu
- Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China
| | - Kwok-Keung Shiu
- Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China
| | - Chung-Hang Leung
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao, China
| | - Dik-Lung Ma
- Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China.
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Li Z, Miao X, Xing K, Peng X, Zhu A, Ling L. Ultrasensitive electrochemical sensor for Hg2+ by using hybridization chain reaction coupled with Ag@Au core–shell nanoparticles. Biosens Bioelectron 2016; 80:339-343. [DOI: 10.1016/j.bios.2016.01.074] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2015] [Revised: 01/18/2016] [Accepted: 01/28/2016] [Indexed: 11/28/2022]
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Miao X, Yang C, Leung CH, Ma DL. Application of iridium(III) complex in label-free and non-enzymatic electrochemical detection of hydrogen peroxide based on a novel "on-off-on" switch platform. Sci Rep 2016; 6:25774. [PMID: 27170211 PMCID: PMC4864421 DOI: 10.1038/srep25774] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2016] [Accepted: 04/22/2016] [Indexed: 12/15/2022] Open
Abstract
We herein report a label-free and non-enzymatic electrochemical sensor for the highly sensitive detection of hydrogen peroxide (H2O2) based on a novel "on-off-on" switch system. In our design, MB was used as an electron mediator to accelerate the electron transfer while AuNPs was used to amplify the electrochemical signal due to its excellent biocompatibility and good conductivity. The "switch-off" state was achieved by introducing the guanine-rich capture probe (CP) and an iridium complex onto the electrode surface to form a hydrophobic layer, which then hinders electron transfer. Upon addition of H2O2, fenton reaction occurs and produces OH• in the presence of Fe(2+). The OH• cleaves the CP into DNA fragments, thus resulting in the release of CP and iridium complex from the sensing interface, recovering the electrochemical signal to generate a "switch-on" state. Based on this novel switch system, a detection limit as low as 3.2 pM can be achieved for H2O2 detection. Moreover, satisfactory results were obtained by using this method for the detection of H2O2 in sterilized milk. To the best of our knowledge, this is the first G-quadruplex-based electrochemical sensor using an iridium(III) complex.
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Affiliation(s)
- Xiangmin Miao
- Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China
| | - Chao Yang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao, China
| | - Chung-Hang Leung
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao, China
| | - Dik-Lung Ma
- Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China
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Zhang K, Yao H, Yang Z, Li D, Yang L, Zou Q, Yuan Y, Miao X. Comparison of ILK and ERP29 expressions in benign and malignant pancreatic lesions and their clinicopathological significances in pancreatic ductal adenocarcinomas. Clin Transl Oncol 2016; 18:352-9. [PMID: 26887611 DOI: 10.1007/s12094-015-1331-x] [Citation(s) in RCA: 4] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2015] [Accepted: 06/17/2015] [Indexed: 12/19/2022]
Abstract
INTRODUCTION Pancreatic ductal adenocarcinoma (PDAC) is a highly malignant tumor of the pancreas with poor prognosis. The lack of understanding of the molecular mechanisms of PDAC and biomarkers for early diagnosis might be two of the reasons for the poor prognosis of PDAC. MATERIALS AND METHODS ILK and ERP29 protein expressions in PDAC, peritumoral tissues, benign pancreatic lesions, and normal pancreatic tissues were measured by immunohistochemistry and the clinical and pathological significances of ILK and ERP29 in PDAC were analyzed. RESULTS The percentages of positive ILK and negative ERP29 expressions were significantly higher in PDAC tumors than in peritumoral tissues, benign pancreatic tissues, and normal pancreatic tissues (P < 0.01). Benign pancreatic lesions with positive ILK and negative ERP29 expressions exhibited dysplasia or intraepithelial neoplasia. The percentage of cases with positive ILK and negative ERP29 expressions was significantly lower in PDAC patients without lymph node metastasis and invasion, and having TNM stage I/II disease than in patients with lymph node metastasis, invasion, and TNM stage III/IV disease (P < 0.05 or P < 0.01). Kaplan-Meier survival analysis showed that positive ILK and negative ERP29 expressions were significantly associated with survival in PDAC patients (P < 0.001). Cox multivariate analysis revealed that positive ILK and negative ERP29 expressions were independent poor prognosis factors in PDAC patients. CONCLUSIONS Positive ILK and negative ERP29 expressions are associated with the progression of PDAC and poor prognosis in patients with PDAC.
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Affiliation(s)
- K Zhang
- Department of General Surgery, The Fourth People's Hospital of Changde, Changde, 415000, Hunan, People's Republic of China
| | - H Yao
- Department of General Surgery, Second Xiangya Hospital, Central South University, Changsha, 410011, Hunan, People's Republic of China.
| | - Z Yang
- Research Laboratory of Hepatobiliary Diseases, Second Xiangya Hospital, Central South University, Changsha, 410011, Hunan, People's Republic of China
| | - D Li
- Department of Pathology, Second Xiangya Hospital, Central South University, Changsha, 410011, Hunan, People's Republic of China
| | - L Yang
- Research Laboratory of Hepatobiliary Diseases, Second Xiangya Hospital, Central South University, Changsha, 410011, Hunan, People's Republic of China
| | - Q Zou
- Department of Pathology, Third Xiangya Hospital, Central South University, Changsha, 410013, Hunan, People's Republic of China
| | - Y Yuan
- Department of Pathology, Third Xiangya Hospital, Central South University, Changsha, 410013, Hunan, People's Republic of China
| | - X Miao
- Research Laboratory of Hepatobiliary Diseases, Second Xiangya Hospital, Central South University, Changsha, 410011, Hunan, People's Republic of China
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Chen X, Liu Y, Zhang Z, Miao X, Tian Y, Yao L, Liu J, Lu H, Liu Y. Hypoxia stimulates the proliferation of rat neural stem cells by regulating the expression of metabotropic glutamate receptors: an in vitro study. Cell Mol Biol (Noisy-le-grand) 2016; 62:105-114. [PMID: 27064882] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2016] [Accepted: 03/27/2016] [Indexed: 06/05/2023]
Abstract
Neural stem cells (NSCs) reside in not only developing, but also adult brain with specialized microenvironments that regulate their function. In vitro and in vivo studies have revealed strong regulatory links between hypoxic/ischemic insults and activation of NSCs. However, the underlying mechanisms remain unclear. Here, we show that proliferating NSCs isolated from rat E15.5 cortex expressed functional metabotropic glutamate receptor (mGluR) subtype 3-7. Hypoxic exposure regulated their expression in NSCs in mRNA and protein levels. Activation of mGluRs by glutamate or Trans-ACPD (a non subtype-selective mGluRs agonist) sensitized NSCs to the growth effects of hypoxia. Pharmacological blockade of ionotropic glutamate receptor (iGluR) using MK-801 did not attenuate the action of glutamate in NSCs. Furthemore, we used the group specific mGluR agonists DHPG, LY 379268 and L-AP4 to explore which mGluR subtypes are responsible for stimulating NSCs proliferation after hypoxia. The results suggested that hypoxia increased expression of group I mGluR5 and significantly enhanced the NSCs proliferation. We conclude that hypoxia regulates the expression of mGluRs in proliferating NSCs and the dynamic expression of mGluRs induced by hypoxia may be one of the mechanisms of hypoxia stimulated NSCs activation. Regulation of mGluRs in NSCs might be a useful tool in the experimental cell therapy of hypoxic/ischemic injuries of CNS.
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Affiliation(s)
- X Chen
- Xi'an Jiaotong University Health Science Center Institute of Neurobiology Xi'an China
| | - Y Liu
- Xi'an Jiaotong University Health Science Center Institute of Neurobiology Xi'an China
| | - Z Zhang
- Xi'an Jiaotong University Health Science Center Institute of Neurobiology Xi'an China
| | - X Miao
- Shaanxi Provincial People's Hospital Department of Neurosurgery Xi'an China
| | - Y Tian
- Xi'an Mental Health Center Xi'an China
| | - L Yao
- Xi'an Jiaotong University Health Science Center Institute of Neurobiology Xi'an China
| | - J Liu
- Xi'an Jiaotong University Health Science Center Institute of Neurobiology Xi'an China
| | - H Lu
- Xi'an Jiaotong University Health Science Center Institute of Neurobiology Xi'an China
| | - Y Liu
- Xi'an Jiaotong University Health Science Center Institute of Neurobiology Xi'an China
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Huang Z, Miao X, Patarroyo M, Nilsson GP, Pernow J, Li N. Tetraspanin CD151 and integrin α6β1 mediate platelet-enhanced endothelial colony forming cell angiogenesis. J Thromb Haemost 2016; 14:606-18. [PMID: 26749288 DOI: 10.1111/jth.13248] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2015] [Indexed: 12/13/2022]
Abstract
UNLABELLED ESSENTIALS: Platelet releasates (PRs) enhance endothelial colony forming cell (ECFC) angiogenesis. The impact of platelet membrane components on ECFC angiogenesis was studied by a tube formation assay. Platelets enhanced ECFC angiogenesis more potently than PR, via tetraspanin CD151 and integrin α6β1. Optimal enhancement of ECFC angiogenesis by platelets requires both membrane proteins and PR. SUMMARY BACKGROUND Platelets promote angiogenesis of endothelial colony forming cells (ECFCs), with the underlying mechanisms not being fully understood. OBJECTIVE To investigate if platelets regulate the angiogenic property of ECFCs via mechanisms beyond platelet-released angiogenic regulators. METHODS AND RESULTS Endothelial colony forming cells were generated by ECFC-directed cell culture of peripheral blood mononuclear cells. Capillary-like tube formation of ECFCs was assessed using a Matrigel assay. Platelets promoted ECFC tube formation in both basic and complete ECFC medium. Importantly, the ECFC angiogenic responses induced by platelets were stronger than those induced by platelet releasates. Thus, the branching points of ECFC tube formation (30.5 ± 9.0/field, ECFC alone) were increased by platelet releasates (58.2 ± 8.3/field) and even more profoundly by platelets (95.5 ± 17.6/field), indicating that platelet membrane components also promoted ECFC tube formation. The latter was further supported by evidence that fixed platelets did enhance ECFC tube formation. Subsequent experiments revealed that the promotion was dependent on platelet-surface glycoproteins, as removal of sialic acid from platelet glycoproteins by neuraminidase abolished the enhancement. Furthermore, platelet-expressed, but not ECFC-expressed, CD151 was important for the enhancement, as pretreatment of platelets, but not ECFCs, with a CD151-blocking antibody attenuated the effect. Integrin α6β1 on both ECFCs and platelets also participated in platelet-promoted tube formation, as integrin α6 or β1 blockade of either cell type markedly or totally inhibited the phenomenon. Moreover, platelets exerted the enhancement via the Src-PI3K signaling pathway of ECFCs. CONCLUSION Platelet-enhanced ECFC angiogenesis requires platelet tetraspanin CD151 and α6β1 integrin, as well as ECFC α6β1 integrin and Src-PI3K signaling.
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Affiliation(s)
- Z Huang
- Clinical Pharmacology Unit, Department of Medicine-Solna, Karolinska Institutet, Stockholm, Sweden
| | - X Miao
- Clinical Pharmacology Unit, Department of Medicine-Solna, Karolinska Institutet, Stockholm, Sweden
| | - M Patarroyo
- Department of Dental Medicine, Department of Medicine-Solna, Karolinska Institutet, Stockholm, Sweden
| | - G P Nilsson
- Clinical Immunology and Allergy Unit, Department of Medicine-Solna, Karolinska Institutet, Stockholm, Sweden
| | - J Pernow
- Cardiology Unit, Department of Medicine-Solna, Karolinska Institutet, Karolinska University Hospital-Solna, Stockholm, Sweden
| | - N Li
- Clinical Pharmacology Unit, Department of Medicine-Solna, Karolinska Institutet, Stockholm, Sweden
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Shen Y, Zhang H, Wang L, Qian H, Qi Y, Miao X, Cheng L, Qi X. Protective effect of ferulic acid against 2,2'-azobis(2-amidinopropane) dihydrochloride-induced oxidative stress in PC12 cells. Cell Mol Biol (Noisy-le-grand) 2016; 62:109-116. [PMID: 26828997] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2015] [Accepted: 01/27/2016] [Indexed: 06/05/2023]
Abstract
Oxidative stress is closely related to the pathogenesis of neurodegenerative disorders such as Parkinson's disease and Alzheimer's disease. However, the underlying antioxidant mechanisms of ferulic acid (FA) aganist oxidantive stress are poorly understood. We evaluated the potential protective effects of FA against 2,2'-azobis(2-amidinopropane) dihydrochloride (AAPH)-induced damage in PC12 cells. Our results indicated that pretreatment with FA prior to AAPH exposure significantly increased PC12 cell survival, and also increased catalase and superoxide dismutase activity. Furthermore, FA treatment reduced cellular lactate dehydrogenase release and malondialdehyde levels. It attenuated AAPH-induced apoptosis in PC12 cells, as determined by flow cytometric detection of annexin V. Reductions in mitochondrial membrane potential and accumulation of intracellular Ca2+ were also inhibited by FA treatment. These findings suggested that FA protected PC12 cells against AAPH-induced oxidative stress, and may be a neuroprotective agent.
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Affiliation(s)
- Y Shen
- Jiangnan University State Key Laboratory of Food Science and Technology, School of Food Science and Technology Wuxi China
| | - H Zhang
- Jiangnan University State Key Laboratory of Food Science and Technology, School of Food Science and Technology Wuxi China
| | - L Wang
- Jiangnan University State Key Laboratory of Food Science and Technology, School of Food Science and Technology Wuxi China
| | - H Qian
- Jiangnan University State Key Laboratory of Food Science and Technology, School of Food Science and Technology Wuxi China
| | - Y Qi
- Jiangnan University State Key Laboratory of Food Science and Technology, School of Food Science and Technology Wuxi China
| | - X Miao
- Jiangnan University State Key Laboratory of Food Science and Technology, School of Food Science and Technology Wuxi China
| | - L Cheng
- Jiangnan University State Key Laboratory of Food Science and Technology, School of Food Science and Technology Wuxi China
| | - X Qi
- Jiangnan University State Key Laboratory of Food Science and Technology, School of Food Science and Technology Wuxi China
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Miao X, Li Z, Ling L. Fluorescence recognition of double-stranded DNA based on the quenching of gold nanoparticles to a fluorophore labeled DNA probe. Analyst 2016; 141:5829-5834. [DOI: 10.1039/c6an01145d] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This work described an ultrasensitive fluorescent sensor for sequence-specific recognition of dsDNA based on the quenching of gold nanoparticles (AuNPs) to a fluorophore labeled DNA probe.
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Affiliation(s)
- Xiangmin Miao
- School of Life Science
- Jiangsu Normal University
- Xuzhou 221116
- PR China
| | - Zongbing Li
- School of Life Science
- Jiangsu Normal University
- Xuzhou 221116
- PR China
| | - Liansheng Ling
- School of Chemistry and Chemical Engineering
- Sun Yat-Sen University
- Guangzhou 510275
- PR China
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Xing K, Shen X, Zhu X, Ju X, Miao X, Tian J, Feng Z, Peng X, Jiang J, Qin S. Synthesis and in vitro antifungal efficacy of oleoyl-chitosan nanoparticles against plant pathogenic fungi. Int J Biol Macromol 2016; 82:830-6. [DOI: 10.1016/j.ijbiomac.2015.09.074] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2015] [Revised: 09/21/2015] [Accepted: 09/29/2015] [Indexed: 10/23/2022]
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Li Z, Miao X, Xing K, Zhu A, Ling L. Enhanced electrochemical recognition of double-stranded DNA by using hybridization chain reaction and positively charged gold nanoparticles. Biosens Bioelectron 2015. [DOI: 10.1016/j.bios.2015.06.070] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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Abstract
Non - specific PCR amplification and DNA contamination usually accompany with PCR process, to overcome these problems, here we establish a sensor for thrombin by sequence - specific recognition of the PCR product with molecular beacon through triplex formation. Probe A and probe B were designed for the sensor, upon addition of thrombin, two probes hybridized to each other and the probe B was extended in the presence of Klenow Fragment polymerase and dNTPs. The PCR amplification occurred with further addition of Taq DNA Polymerase and two primers, the PCR product was recognized by molecular beacon through triplex formation. The fluorescence intensity increased with the logarithm of the concentration of thrombin over the range from 1.0 × 10−12 M to 1.0 × 10−7 M, with a detection limit of 261 fM. Moreover, the effect of DNA contamination and non - specific amplification could be ignored completely in the proposed strategy.
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Affiliation(s)
- Yubin Li
- School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275, P. R. China
| | - Xiangmin Miao
- School of Life Science, Jiangsu Normal University, Xuzhou 221116, PR China
| | - Liansheng Ling
- School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275, P. R. China
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