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Zhu M, Wang J, Wu S, Gao E. SYNTHESIS, CRYSTAL STRUCTURE, AND ANTICANCER ACTIVITY AGAINST THE HeLa CELL LINE OF A NOVEL Co(II) COMPLEX WITH 4,5-BIS(PYRAZOL-1-YL) PHTHALIC ACID. J STRUCT CHEM+ 2021. [DOI: 10.1134/s0022476621020086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Jabri MA, Wu S, Pan Y, Wang L. An overview on the veracity of intraoral digital scanning system and utilization of iTero scanner for analyzing orthodontic study models both In-Vivo and Ex-Vivo. Niger J Clin Pract 2021; 24:1-7. [PMID: 33473018 DOI: 10.4103/njcp.njcp_698_19] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
In the domain of orthodontics, plaster models are contemplated as one of the important tools for diagnosis and treatment planning. In Dentistry, technological advancement has developed in the section of diagnostic devices, for example, the utilization of a 3D intraoral scanner, which can convert plaster models into digital models. With in-office utilization of this system, orthodontists can more meticulously and precisely construct custom braces, clear aligners, and orthodontic appliances. The digital data can be stored as a stereolithography file; it eliminates the disadvantages encountered with the storage of plaster models like breakage, space required, and distortion of the plaster models. ITero®element is the intraoral laser scanner (ILS) which utilizes parallel confocal scanning technology which maximizes the accuracy of the scan. By utilizing the iTero scanner, the dental measurement can be performed in OrthoCADTM software which is highly accurate. The objective of the contemporary study is to review the literature of studies on in-vivo and ex-vivo scanning with the iTero system.
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Wang M, Wang C, Zhao M, Li Y, Yao S, Wu S, Xue H. Uric Acid Variability and All-Cause Mortality: A Prospective Cohort Study in Northern China. J Nutr Health Aging 2021; 25:1235-1241. [PMID: 34866151 DOI: 10.1007/s12603-021-1706-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
OBJECTIVES Uric acid(UA) is related with cardiovascular disease, but the association of UA variability with all-cause mortality is rarely known. This study aimed to investigate the relationship between UA variability and all-cause mortality in Kailuan cohort study in northern China. DESIGN Cohort study. SETTING Kailuan community hospitals in Tangshan, Hebei province, Northern China. PARTICIPANTS A total of 55717 participants from Kailuan Study were enrolled, and our study followed up biennially from 2006 to 2010. MEASUREMENTS Clinical records of the participants enrolled were analyzed. UA variation independent of mean (UAVIM) values were calculated and all the participants were quartile grouped into four groups as: Q1(UAVIM<0.68), Q2(0.68≤UAVIM<1.10), Q3(1.10≤UAVIM<1.67) and Q4(UAVIM≥1.67). The endpoint event was all-cause death. Cox regression model was performed to evaluate the hazard ratios(HRs) of all-cause mortality based on UAVIM groups. RESULTS During a median follow-up of 6.83 years, 2926 deaths occurred. The accumulated mortality rates were 4.6%, 4.8%, 5.4% and 6.1% in group Q1, Q2, Q3 and Q4 respectively. When adjusted potential confounders, the highest risk for all-cause mortality was in group Q4 and the adjusted HRs and 95% confidence intervals(CIs) of group Q2-Q4 for all-cause death were 1.044(0.937, 1.164), 1.182(1.064, 1.314) and 1.353(1.220, 1.501) compared with group Q1, respectively. Further analysis showed that the risk for all-cause death increased as UAVIM value increased. Sensitive analysis still showed the similar results when excluding participants with hyperuricemia or severe chronic kidney diseases. Sub-group analysis by age, gender, BMI or hypertension history also indicated analogous results. CONCLUSION Elevated UAVIM was related with increased all-cause mortality and UAVIM was an independent risk factor for all-cause mortality in the community cohort study.
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Wu S, Wang S, Zhu M, Gao E. SYNTHESIS, CHARACTERIZATION, DNA BINDING,
AND ANTICANCER ABILITY OF A Co(II) COMPLEX CONSTRUCTED
BY 2-PROPYL-1H-IMIDAZOLE-4,5-DICARBOXYLIC ACID. J STRUCT CHEM+ 2020. [DOI: 10.1134/s0022476620120112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Wu S, Wang S, Zhu M, Gao E. CRYSTALLOGRAPHIC ANALYSIS OF A SAMARIUM(III) COMPLEX WITH 1,3,5-TRIS(1-IMIDAZOLYL)BENZENE. J STRUCT CHEM+ 2020. [DOI: 10.1134/s0022476620120124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Zhang E, Wu S, Cai W, Zeng J, Li J, Li G, Liu J. Validation of superior reference genes for qRT-PCR and Western blot analyses in marine Emiliania huxleyi-virus model system. J Appl Microbiol 2020; 131:257-271. [PMID: 33275816 DOI: 10.1111/jam.14958] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Revised: 11/19/2020] [Accepted: 11/29/2020] [Indexed: 11/30/2022]
Abstract
AIMS To search for a set of reference genes for reliable gene expression analysis in the globally important marine coccolithophore Emiliania huxleyi-virus model system. METHODS AND RESULTS Fifteen housekeeping genes (CDKA, CYP15, EFG3, POLAI, RPL30, RPL13, SAMS, COX1, GPB1-2, HSP90, TUA, TUB, UBA1, CAM3 and GAPDH) were evaluated for their stability as potential reference genes for qRT-PCR using ΔCt, geNorm, NormFinder, Bestkeeper and RefFinder software. CDKA, TUA and TUB genes were tested as loading controls for Western blot in the same sample panel. Additionally, target genes associated with cell apoptosis, that is metacaspase genes, were applied to validate the selection of reference genes. The analysis results demonstrated that putative housekeeping genes exhibited significant variations in both mRNA and protein content during virus infection. After a comprehensive analysis with all the algorithms, CDKA and GAPDH were recommended as the most stable reference genes for E huxleyi virus (EhV) infection treatments. For Western blot, significant variation was seen for TUA and TUB, whereas CDKA was stably expressed, consistent with the results of qRT-PCR. CONCLUSIONS CDKA and GAPDH are the best choice for gene and protein expression analysis than the other candidate reference genes under EhV infection conditions. SIGNIFICANCE AND IMPACT OF THE STUDY The stable internal control genes identified in this work will help to improve the accuracy and reliability of gene expression analysis and gain insight into complex E. huxleyi-EhV interaction regulatory networks.
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Silva V, Wu S, Fukushima F, Adams P, Cunha O, Piccoli R, Carvalho A. Correção de fratura Salter-Harris tipo I em porquinho-da-índia (Cavia porcellus) ˗ relato de caso. ARQ BRAS MED VET ZOO 2020. [DOI: 10.1590/1678-4162-11821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
RESUMO Um filhote de porquinho-da-índia (Cavia porcellus) foi recebido para atendimento após histórico de ataque por cão. Na avaliação física, observou-se edema, dor e crepitação em membro pélvico direito, sugestivo de fratura. Na avaliação radiográfica, confirmou-se fratura Salter-Harris tipo I em epífise distal da tíbia. A resolução cirúrgica escolhida foi a associação de pino transarticular e coaptação externa com tala de Altman. O paciente teve acompanhamento radiográfico semanal e obteve alta médica no 35o dia de pós-cirúrgico, quando se observou consolidação com completo remodelamento ósseo.
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Wu S, Lin X, Cui X. Effect of Liposome-Encapsulated Zoledronic Acid on Microenvironment of Hepatocellular Carcinoma May Depend on the Ratio Between M1 and M2 Polarized Macrophages. Bull Exp Biol Med 2020; 170:69-74. [PMID: 33237530 DOI: 10.1007/s10517-020-05006-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2020] [Indexed: 10/22/2022]
Abstract
We studied the effect of zoledronic acid encapsulated into liposomes (L-ZOL) on tumorassociated macrophages in the stroma of hepatocellular carcinoma xenograft. Liposomes were prepared from 1,2-dipalmitoyl-sn-glycero-3-phosphocholine, 1,2-dipalmitoyl-snglycero-3-phospho-sn-1-glycerol, and 1,2-distearoyl-sn-glycero-3-phosphoethanolamine-N-[carboxy(polyethylene glycol)-2000] using thin film method and loaded with zoledronic acid. It was shown that L-ZOL promoted apoptosis of RAW264.7 cells, eliminate much more protumoral M2 macrophages than antitumoral M1 macrophages in the tumor xenograft, and did not significantly reduce the size of xenograft in 6 days. Thus, the effect of treatment depends on the ratio between antitumoral M1 and protumoral M2 polarized macrophages in the tumor.
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Miyamoto D, Kamran S, Mouw K, Wu C, Wu S, Ukleja J, Kusaka E, Otani K, Borger D, Lennerz J, Van Allen E, Willers H, Hong T, Shipley W, Efstathiou J. Mutational Landscape and Genetic Determinants of Response to Trimodality Therapy in Muscle-Invasive Bladder Cancer. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.430] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Wang Q, Zhao J, Han X, Er P, Meng X, Shi J, Sun H, Zhu J, Zhu L, Wu S, Zhang W, Sun B. Is There A Role of Post-Mastectomy Radiotherapy for T1-2 Breast Cancer Patients with Node-Positive Pathology who Develop Pathologic Negative Lymph Nodes after Neoadjuvant Chemotherapy and Mastectomy? Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.1095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Chen Y, Wu S, Zhang XS, Wang DM, Qian CY. MicroRNA-489 promotes cardiomyocyte apoptosis induced by myocardial ischemia-reperfusion injury through inhibiting SPIN1. EUROPEAN REVIEW FOR MEDICAL AND PHARMACOLOGICAL SCIENCES 2020; 23:6683-6690. [PMID: 31378911 DOI: 10.26355/eurrev_201908_18559] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE To investigate whether microRNA-489 could promote cardiomyocyte apoptosis through targeting inhibition of SPIN1, thus participating in the development of myocardial ischemia-reperfusion injury. MATERIALS AND METHODS MicroRNA-489 expression in H9c2 cells induced with hypoxia/reoxygenation (H/R) was determined by quantitative real-time polymerase chain reaction (qRT-PCR). With microRNA-489 overexpression in H/R H9c2 cells, activities of lactate dehydrogenase (LDH), methane dicarboxylic aldehyde (MDA), superoxide dismutase (SOD) and glutathione peroxidase (GSH-PX) were detected using relative commercial kits, respectively. The regulatory effect of microRNA-489 on the proliferation and apoptosis of H/R H9c2 cells was assessed through cell counting kit-8 (CCK-8) assay and flow cytometry (FCM), respectively. Through conducting a dual-luciferase reporter gene assay, we evaluated the binding condition between microRNA-489 and SPIN1. Protein expressions of apoptotic genes in H/R H9c2 cells with microRNA-489 overexpression were determined by Western blot. Finally, the regulatory role of microRNA-489 in PI3K/AKT pathway was detected through Western blot. RESULTS QRT-PCR data showed that microRNA-489 was highly expressed in H/R H9c2 cells than those in normoxic control. Overexpression of microRNA-489 in H/R H9c2 cells increased the activities of LDH, MDA and GSH-PX, while decreased the activities of SOD. MicroRNA-489 overexpression markedly inhibited the proliferative rate but accelerated apoptosis of H/R H9c2 cells. Western blot results indicated that protein expressions of pro-apoptotic genes Bax and cytochrome C upregulated, whereas anti-apoptotic gene Bcl-2 downregulated after overexpression of microRNA-489 in H/R H9c2 cells. We confirmed that microRNA-489 could target to SPIN1 and inhibit its expression. After overexpression of microRNA-489 in H/R H9c2 cells, PI3K/AKT pathway was inhibited, which was further reversed by PI3K/AKT pathway agonist SC79. Besides, SC79 treatment also reversed the regulatory effect of overexpressed microRNA-489 on cellular behaviors of H/R H9c2 cells. CONCLUSIONS MicroRNA-489 inhibits the proliferation and accelerates apoptosis of cardiomyocytes after MIRI by targeting inhibition of SPIN1 via inactivating PI3K/AKT pathway. MicroRNA-489 may be a potential therapeutic target for MIRI.
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Wu S, Xie DL, Dai XY. Down-regulation of miR-155 promotes apoptosis of nasopharyngeal carcinoma CNE-1 cells by targeting PI3K/AKT-FOXO3a signaling. EUROPEAN REVIEW FOR MEDICAL AND PHARMACOLOGICAL SCIENCES 2020; 23:7391-7398. [PMID: 31539126 DOI: 10.26355/eurrev_201909_18847] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE Nasopharyngeal carcinoma is one of the common malignant tumors of the ear, nose, and throat in China. Cell apoptosis is expected to be closely related to prognosis. In recent years, with the development of non-coding RNA function research, it is proposed that miRNA plays an important role in the pathogenesis of nasopharyngeal carcinoma. This study aimed to investigate the role of miR-155 in the apoptosis of nasopharyngeal carcinoma cells. PATIENTS AND METHODS Cell transfection was performed to knockdown or overexpress the level of miR-155 or knockdown of the level of FOXO3a. The expression of the related protein was detected by immunoblotting. The Real Time quantitative-PCR was used to detect miR-155 expression. Cell proliferation was assessed by MTT assay. The changes of cell apoptosis were observed by flow cytometry using AV-PI staining and TUNEL staining. RESULTS The miR-155 inhibitor and mimics were successfully capable of knocking down or overexpressing miR-155 levels. After knocking down miR-155 level, cell proliferation was significantly attenuated, and apoptosis was significantly increased compared with the sham group (p < 0.05). After overexpression of miR-155, opposite results were observed. In addition, in the cells with the knockdown of miR-155 level, further knockdown of FOXO3a level significantly reduced the inhibitory effect of miR-155 on cell apoptosis compared with the control group (p < 0.05). CONCLUSIONS In nasopharyngeal carcinoma CNE-1 cell line, miR-155 can inhibit the proliferation and promote apoptosis of nasopharyngeal carcinoma cells by targeting PI3K/AKT-FOXO3a signaling. MiR-155 may be a novel target for the treatment of nasopharyngeal carcinoma.
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Venkatramanan S, Wu S, Shi B, Marathe A, Marathe M, Eubank S, Sah LP, Giri AP, Colavito LA, Nitin KS, Sridhar V, Asokan R, Muniappan R, Norton G, Adiga A. Modeling Commodity Flow in the Context of Invasive Species Spread: Study of Tuta absoluta in Nepal. CROP PROTECTION (GUILDFORD, SURREY) 2020; 135:104736. [PMID: 32742052 PMCID: PMC7394466 DOI: 10.1016/j.cropro.2019.02.012] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Trade and transport of goods is widely accepted as a primary pathway for the introduction and dispersal of invasive species. However, understanding commodity flows remains a challenge owing to its complex nature, unavailability of quality data, and lack of systematic modeling methods. A robust network-based approach is proposed to model seasonal flow of agricultural produce and examine its role in pest spread. It is applied to study the spread of Tuta absoluta, a devastating pest of tomato in Nepal. Further, the long-term establishment potential of the pest and its economic impact on the country are assessed. Our analysis indicates that regional trade plays an important role in the spread of T. absoluta. The economic impact of this invasion could range from USD 17-25 million. The proposed approach is generic and particularly suited for data-poor scenarios.
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Zhao QX, Yang FY, Chen D, Wu LY, Wang MS, Li XS, Wu S, Shi BK, Xing NZ. [Application of Endo-GIA stapler in laparoscopic radicalcystectomy]. ZHONGHUA YI XUE ZA ZHI 2020; 100:1872-1876. [PMID: 32575930 DOI: 10.3760/cma.j.cn112137-20190925-02112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore the application of Endo-GIA stapler in laparoscopic radical cystectomy, especially in the treatment of lateral bladder ligament, and to evaluate its clinical feasibility and practicability. Methods: A retrospective analysis of clinical data about 38 cases of laparoscopic radical cystectomy (LRC) treated in the Department of Urology, Chaoyang Hospital of Beijing and Cancer Hospital, Chinese Academy of Medical Sciences from July 2017 to June 2019 were conducted. The patients were divided into Endo-GIA stopler group(18 cases) and non-Endo-GIA stopler group (20 cases) according to whether Endo-GIA stapler were used. The basic clinical data, operation time of bladder lateral ligament, operation time of bladder lateral wall, operation time of bladder resection, amount of bleeding during operation, pathological data after operation and related indicators of recovery after operation were compared between the two groups. Results: All 38 patients underwent radical cystectomy (RC) successfully under 3-D laparoscopy without conversion to open surgery. The operation time of bladder lateral ligament in Endo-GIA stapler group was significantly shorter than that in non-Endo-GIA stapler group [(3.25±0.75) min vs (9.20±2.95) min, P=0.042]; the operation time of bladder lateral wall in Endo-GIA stapler group was significantly shorter than that in non-Endo-GIA stapler group [(8.06±1.66) min vs (14.30±3.37) min, P=0.016]. The operation time of cystectomy in the Endo-GIA stapler group was significantly shorter than that in the non-Endo-GIA stapler group [(47.06±4.70) min vs (61.60±14.91) min,P=0.003]. The amount of bleeding in the Endo-GIA stapler group was significantly shorter than that in the non-Endo-GIA stapler group [(37.77±21.30) ml vs (114.50±39.80) ml, P=0.015]. The time of drainage tube removal in Endo-GIA group was significantly shorter than that in the non-Endo-GIA group [(5.83±1.54) d vs (7.30±3.00) d, P=0.002]. The length of post-hospitalization in Endo-GIA group was significantly shorter than that in the non-Endo-GIA group [(7.67±1.78) d vs (9.60±3.25) d,P=0.036]. However, there was no significant difference in other basic clinical data, post-operative pathology and post-operative recovery related indicators. Conclusions: Laparoscopic radical cystectomy using Endo-GIA stapler device is safe and feasible. It is easy to operate, shorten the operation time significantly, and reduce the amount of bleeding. To a certain extent, it is conducive to the recovery of patients after operation to some extent, and worthy of clinical application.
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Wu S, Liu Y, Lei L, Zhang H. Nanographene oxides carrying antisense walR RNA regulates the Enterococcus faecalis biofilm formation and its susceptibility to chlorhexidine. Lett Appl Microbiol 2020; 71:451-458. [PMID: 32654154 DOI: 10.1111/lam.13354] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2020] [Revised: 06/13/2020] [Accepted: 07/07/2020] [Indexed: 02/05/2023]
Abstract
Enterococcus faecalis is the dominant pathogen for persistent periapical periodontitis. The chlorhexidine (CHX) is used as conversional irrigation agents during endodontic root canal therapy. It was reported that the antisense walR RNA (ASwalR) suppressed the biofilm organization. The aim of this study was to investigate the antimicrobial effects of novel graphene oxide (GO)-polyethylenimine (PEI)-based antisense walR (ASwalR) on the inhibition of E. faecalis biofilm and its susceptibility to chlorhexidine. The recombinant ASwalR plasmids were modified with a gene encoding enhanced green fluorescent protein (ASwalR-eGFP) as a reporter gene so that the transformation efficiency could be evaluated by the fluorescence intensity. The GO-PEI-based ASwalR vector transformation strategy was developed to be transformed into E. faecalis and to over-produce ASwalR in biofilms. Colony forming units (CFU) and confocal laser scanning microscopy were used to investigate whether the antibacterial properties of antisense walR interference strategy sensitize E. faecalis biofilm to the CHX. The results indicated that overexpression of ASwalR by GO-PEI-based transformation strategy could inhibit biofilm formation, decrease the EPS synthesis and increase the susceptibility of E. faecalis biofilms to CHX. Our reports demonstrated that antisense walR RNA will be a supplementary strategy in treating E. faecalis with irrigation agents.
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Adib AA, Sheikhi A, Shahhosseini M, Simeunović A, Wu S, Castro CE, Zhao R, Khademhosseini A, Hoelzle DJ. Direct-write 3D printing and characterization of a GelMA-based biomaterial for intracorporeal tissue. Biofabrication 2020; 12:045006. [PMID: 32464607 DOI: 10.1088/1758-5090/ab97a1] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
We develop and characterize a biomaterial formulation and robotic methods tailored for intracorporeal tissue engineering (TE) via direct-write (DW) 3D printing. Intracorporeal TE is defined as the biofabrication of 3D TE scaffolds inside of a living patient, in a minimally invasive manner. A biomaterial for intracorporeal TE requires to be 3D printable and crosslinkable via mechanisms that are safe to native tissues and feasible at physiological temperature (37 °C). The cell-laden biomaterial (bioink) preparation and bioprinting methods must support cell viability. Additionally, the biomaterial and bioprinting method must enable the spatially accurate intracorporeal 3D delivery of the biomaterial, and the biomaterial must adhere to or integrate into the native tissue. Current biomaterial formulations do not meet all the presumed intracorporeal DW TE requirements. We demonstrate that a specific formulation of gelatin methacryloyl (GelMA)/Laponite®/methylcellulose (GLM) biomaterial system can be 3D printed at physiological temperature and crosslinked using visible light to construct 3D TE scaffolds with clinically relevant dimensions and consistent structures. Cell viability of 71%-77% and consistent mechanical properties over 21 d are reported. Rheological modifiers, Laponite® and methylcellulose, extend the degradation time of the scaffolds. The DW modality enables the piercing of the soft tissue and over-extrusion of the biomaterial into the tissue, creating a novel interlocking mechanism with soft, hydrated native tissue mimics and animal muscle with a 3.5-4 fold increase in the biomaterial/tissue adhesion strength compared to printing on top of the tissue. The developed GLM biomaterial and robotic interlocking mechanism pave the way towards intracorporeal TE.
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Wu Z, Zheng R, Zhang J, Wu S. Transcriptional profiling of Pseudomonas aeruginosa PAO1 in response to anti-biofilm and anti-infection agent exopolysaccharide EPS273. J Appl Microbiol 2020; 130:265-277. [PMID: 32619289 DOI: 10.1111/jam.14764] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2019] [Revised: 05/03/2020] [Accepted: 06/24/2020] [Indexed: 02/06/2023]
Abstract
AIMS Relatively, few anti-biofilm polysaccharides against Pseudomonas aeruginosa were done to investigate the underlying molecular mechanism. Exopolysaccharide EPS273 can clearly reduce biofilm formation and infection of P. aeruginosa. This study aims to investigate its anti-biofilm and anti-infection mechanism on transcriptional level. METHODS AND RESULTS Herein, we used an RNA-Seq transcriptomic approach to investigate the underlying anti-biofilm and anti-infection mechanism of EPS273. The expression levels of a large number of genes were changed after P. aeruginosa PAO1 was treated with EPS273. Especially, the genes related to biofilm formation, such as gene involved in production of extracellular matrix and virulence factor, genes involved in flagella and cell motility and genes involved in iron acquisition. Notably, the expression levels of genes involved in regulatory and signal transduction were markedly downregulated, such as two-component system PhoP-PhoQ and quorum sensing (QS) system LasI/LasR and RhlI/RhlR. Furthermore, when genes phoP and phoQ were disrupted, respectively, the reduction of biofilm formation and cell motility in mutant △phoP or △phoQ was also detected. CONCLUSION EPS273 may exert its anti-biofilm and anti-infection function by downregulating gene expression of two-component system PhoP-PhoQ and QS systems LasI/LasR and RhlI/RhlR of P. aeruginosa, which further regulated expression of genes involved in biofilm formation. SIGNIFICANCE AND IMPACT OF THE STUDY Our data will expand understanding of anti-biofilm mechanisms of polysaccharides on transcriptomic level.
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Zheng R, Niu J, Wu S, Wang T, Wang S, Xu M, Chen Y, Dai M, Zhang D, Yu X, Tang X, Hu R, Ye Z, Shi L, Su Q, Yan L, Qin G, Wan Q, Chen G, Gao Z, Wang G, Shen F, Luo Z, Qin Y, Chen L, Huo Y, Li Q, Zhang Y, Liu C, Wang Y, Wu S, Yang T, Deng H, Chen L, Zhao J, Mu Y, Xu Y, Li M, Lu J, Wang W, Zhao Z, Xu Y, Bi Y, Ning G. Gender and age differences in the association between sleep characteristics and fasting glucose levels in Chinese adults. DIABETES & METABOLISM 2020; 47:101174. [PMID: 32659495 DOI: 10.1016/j.diabet.2020.07.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Revised: 06/24/2020] [Accepted: 07/01/2020] [Indexed: 01/19/2023]
Abstract
AIM The present study examined the associations between night-time sleep duration, midday napping duration and bedtime, and fasting glucose levels, and whether or not such associations are dependent on gender and age. METHODS This study was a cross-sectional analysis of 172,901 adults aged≥40 years living in mainland China. Sleep duration was obtained by self-reports of bedtime at night, waking-up time the next morning and average napping duration at midday. Fasting plasma glucose (FPG)≥7.0mmol/L was defined as hyperglycaemia. Independent associations between night-time sleep duration, midday naptime duration and bedtime with hyperglycaemia were evaluated using regression models. RESULTS Compared with night-time sleep durations of 6-7.9h, both short (<6h) and long (≥8h) night-time sleep durations were significantly associated with an increased risk of hyperglycaemia in women [odds ratio (OR): 1.12, 95% confidence interval (CI): 1.01-1.29 and OR: 1.14, 95% CI: 1.08-1.21, respectively], and revealed a U-shaped distribution of risk in women and no significant association in men. Long midday nap durations (≥1h) were significantly but weakly associated with hyperglycaemia (OR: 1.04, 95% CI: 1.01-1.09) compared with no napping without interactions from gender or age, whereas the association between bedtime and fasting glucose levels did vary according to gender and age. CONCLUSION Night-time sleep duration, midday napping duration and bedtime were all independently associated with the risk of hyperglycaemia, and some of the associations between these sleep characteristics and hyperglycaemia were gender- and age-dependent.
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Zhang L, Guerrero-Juarez C, Chen S, Zhang X, Yin M, Li F, Wu S, Cheng J, Liu Y, Hata T, Plikus M, Gallo R. 336 Diet-induced obesity impairs the antimicrobial defense function of dermal adipocyte progenitors. J Invest Dermatol 2020. [DOI: 10.1016/j.jid.2020.03.343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Zhang RJ, He YY, Jiang D, Liu SF, Zhang YJ, Zheng WS, Wu S, Jing ZC. [Feasibility of the determination of plasma vardenafil level in rat by performance liquid chromatography-tandem mass spectrometry]. ZHONGHUA XIN XUE GUAN BING ZA ZHI 2020; 48:507-512. [PMID: 32842262 DOI: 10.3760/cma.j.cn112148-20200307-00170] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Objective: To develope and validate a reliable and sensitive liquid chromatography-tandem mass spectrometry (LC-MS/MS) method for determination of vardenafil concentration in plasma of rat. Methods: Plasma samples of normal Sprague-Dawley rats were collected. A Phenomenex Synergi Polar-RP 80A column (2.0 mm×50 mm, 4 µm) was used. Column temperature was set at 30 ℃. Mobile phase A was 0.1% formic acid in water; mobile phase B was 0.1% formic acid in acetonitrile. The flow rate was 0.4 ml/minutes. Quantitative determination was performed by electrospray ionization, operating in positive ion multiple reaction monitoring (MRM) mode. Cisapride was used as the internal standard. The feasibility of the method was evaluated by examining its specificity, linearity and quantitative range, precision and accuracy, matrix effects, and stability. Results: Under the selected chromatographic and mass spectrometry conditions, the monitoring ions of vardenafil and internal standard were mass-to-charge ratio(m/z) 489.3/151.2 and 466.4/234.2, the retention times of vardenafil and internal standard were 2.62 and 2.80 minutes, respectively, and the peak shape was satisfactory. The method has good linearity in the concentration range of 0.2-200 ng/ml. The intra-batch precision (%CV) and accuracy (%DEV) of vardenafil were 1.5%-9.7% and -6.8%-6.6%, respectively. The inter-batch precision and accuracy of vardenafil were 3.1% -8.4% and -3.7%-4.6%, respectively. In this sample processing method, the extraction recovery rate of vardenafil was obtained at range of 88.2%-104.6%, which met the requirements for the investigation of extraction recovery rate. In this sample processing method, the normalized matrix factor of each quality control concentration of vardenafil was 1.04, 0.85, and 1.04, and the coefficient of variation (%CV) was in the range of 1.7%-10.7%, which met the requirements for the investigation of matrix effects. Variations of short-term stability, long-term stability, and stability of 4 freeze-thaw cycles of vardenafil was within ±15%, and the coefficient of variation were within 5%. Conclusion: The high performance liquid chromatography-tandem mass spectrometry method established in this study is feasible for the measurement of concentration of vardenafil in rat plasma and this method has good specificity and high accuracy, and can be used to detect the concentration of vardenafil in rat plasma.
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Chen R, MA L, Wu S, MA L, Jiang L. AB0491 ELEVATED COMPLEMENT 3 INDICATES DISEASE ACTIVITY IN TAKAYASU ARTERITIS. Ann Rheum Dis 2020. [DOI: 10.1136/annrheumdis-2020-eular.2591] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Background:The disease activity evaluation of Takayasu arteritis (TA) is a critical issue for disease monitoring and treatment. But the previous markers such as Kerr score or ITAS 2010 are not convenient enough.Objectives:We aim to explore novel biomarkers to assess TA disease activity.Methods:This cross-sectional study was based on the East China TA (ECTA) cohort. Demographic characteristics, clinical features, laboratory and imaging results were collected. Complements and their combination with other biomarkers in identifying active disease (Kerr >= 2) group were analyzed. Internal and external validation were employed to confirm the accuracy and stability of the results.Results:519 patients were enrolled, among which 406 cases (72.2%) were identified as active disease. Higher ESR, CRP, platelet, globulin, IgG, IL-6, complement 3 (C3), complement 4 (C4) and median haemolytic complement (CH50) levels were observed in the active disease group. Logistic regression analysis demonstrated that C3 levels [odds ratio [OR] (95%CI): 10.710(1.825 – 62.835), P = 0.009] and CRP [OR (95%CI): 1.041(1.009 – 1.073), P = 0.011] were independently associated with active disease. The cut-off of C3 to identify active TA was 1.085 g/L, with 69.9% sensitivity, 66.7% specificity. Combining the CRP (cut-off, 10.65g/L; sensitivity, 50.7%; specificity, 82.4%) and C3, the sensitivity and specificity to identify the active disease were 85.1% and 55.0% (parallel test), and 35.4% and 94.1% (serial test), respectively. C3 could significantly improve the diagnostic ability of CRP [net reclassification index: OR (95%CI): 1.728 (1.556–1.990), P = 0.000; integrated discrimination index: OR (95%CI): 0.328 (0.224–0.431), P = 0.000]. The accuracy of the 10-fold cross validation of combining CRP with C3 was over 75%, and the accuracy of the external validation with 53 TA cases was 72.73%.Conclusion:C3 could reflect the disease activity of TA, and combining CRP with C3 could significantly improve the disease activity evaluation in TA.References:[1]Ma J, Luo X, Wu Q, Chen Z, Kou L, Wang H. Circulation levels of acute phase proteins in patients with Takayasu arteritis. J Vasc Surg. 2010;51(3):700-6.Acknowledgments:This work was supported by the National Natural Science Foundation of China [NSFC 81771730 and 81601398].Disclosure of Interests: :None declared
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Wu S, MA L, Wang Y, Chen R, Yu W, Jiang L. FRI0012 THERAPEUTIC VALUE OF CURCUMIN ON INITIATION AND DEVELOPMENT OF INFLAMMATION IN TAKAYASU’S ARTERITIS CAUSED BY HSP65-MEDIATED CCL2 OVEREXPRESSION. Ann Rheum Dis 2020. [DOI: 10.1136/annrheumdis-2020-eular.2474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Background:Takayasu’s arteritis (TA) is a chronic inflammatory disease characterized with macrophages infiltration. During active stage, aorta adventitial fibroblasts (AAFs) proliferate excessively and produce numerous pro-inflammatory factors in the adventitia, which is the main target of TA therapy. Monocyte chemokine CCL2 may contribute to the infiltration of macrophages in TA arteries[1]but whether with relationship with HSP65, an antigen of Mycobacterium tuberculosis (M. TB) which might involve in the pathogenesis of TA[2]and activate AAFs to produce inflammatory factors, has not been reported. The treatment of TA is full of difficulties and contradictions[3]. Curcumin is a traditional Chinese medicine with anti-inflammatory effect[4], whether it is effective on TA and the underlying mechanism remains unclear.Objectives:To explore the mechanism of TA inflammation triggered by M. TB associated antigen HSP65 activating AAFs, as well as the therapeutic value of curcumin in the initiation and development of TA.Methods:We first verified high HSP65 expression in aortic adventitia of TA patients by IHC. mRNA-seq was used to profile DEGs between AAFs stimulated by HSP65 with or without pretreated with curcumin, and AAFs without any treatment. Then the key chemokine CCL2 screened by mRNA-seq was detected in the adventitia of TA aorta, and its correlation with HSP65 expression was analyzed by double-labelled IF. Subsequently, we explored how HSP65 affected the production of inflammatory factors by AAFs at cellular level and its related signal pathway. Simultaneously, we explored whether curcumin could hinder this process. and verified the effect of curcumin on serum CCL2 level in patients with TA. Finally, serum CCL2 and other inflammation indicators of TA patients at baseline and after 3 months treatment by curcumin were determined.Results:HSP65 was highly expressed in the adventitia of TA arteries. DEGs analysis showed a key role of CCL2. The expression of CCL2 in adventitia of TA arteries was significantly higher than healthy subjects, and was correlated with HSP65. HSP65 facilitated the production of CCL2, IL-6 and IL-1β by AAFs via activating TLR4-JAK2/AKT/STAT3 pathway, among which the change of CCL2 was the most remarkable. Curcumin reversed the upregulation of CCL2 induced by HSP65 in vitro, which was more obvious than that of MTX and tofacitinib. Finally, curcumin significantly downregulated the level of serum CCL2 of TA patients.Conclusion:HSP65 initiates and promotes inflammation of TA by upregulated CCL2 in AAFs through JAK/AKT/STAT3 pathway, while curcumin can reverse this process and slow down the initiation and development of TA.References:[1]L, A., J, H., A, M., G, G. & Z, A. Pathogenesis of Takayasu’s arteritis: a 2011 update.Autoimmunity reviews11, 61-67 (2011).[2]Y, S., et al.Perforin-secreting killer cell infiltration and expression of a 65-kD heat-shock protein in aortic tissue of patients with Takayasu’s arteritis.The Journal of clinical investigation93, 750-758 (1994).[3]L, B., G, Y. & C, P. Non-glucocorticoid drugs for the treatment of Takayasu’s arteritis: A systematic review and meta-analysis. Autoimmunity reviews 17, 683-693 (2018).[4]T, E., et al.Curcumin--from molecule to biological function.Angewandte Chemie (International ed. In English)51, 5308-5332 (2012).Figure A.High expression of HSP65 and CCL2 in aortic adventitia of TA patients (n=8) than that of healthy controls (n=6).Figure B.HSP65 increased production of CCL2 in AAFs through TLR4/JAK2-STAT3 pathway.Figure C.Curcumin reversed inflammatory response initiated by HSP65 via inhibiting JAK2/AKT/STAT3 signal pathway in AAFs and significantly reduced serum CCL2 concentration of TA patients.Acknowledgments:We thank Ningli Li for her technical support in this studyDisclosure of Interests:None declared
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Zhuang S, Yuan X, Ma C, Yang N, Liu C, Na M, Winkelman JW, Wu S, Gao X. 0797 Restless Legs Syndrome and Perceived Olfactory and Taste Dysfunction: A Community-Based Study. Sleep 2020. [DOI: 10.1093/sleep/zsaa056.793] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Introduction
Restless legs syndrome (RLS), an under-recognized sensorimotor condition worldwide, is thought to be a prodromal symptom of Parkinson’s disease as suggested by previous evidences. However, its association with prodromal chemosensory impairments, including olfactory or taste dysfunction, has remained largely unknown. Few studies of small sample sizes were conducted in predominantly Caucasian populations and results were inconsistent.
Methods
We performed a cross-sectional analysis including 90,337 Chinese adults free of neurodegenerative diseases in the Kailuan study in 2016. Presence of RLS was defined using revised RLS diagnostic criteria and further verified by Cambridge-Hopkins questionnaire for RLS. Perceived olfactory and taste dysfunction was collected via a questionnaire. The association between RLS and perceived olfactory and taste dysfunction was assessed using logistic regression model, adjusting for potential cofounders such as age, sex, smoking, alcohol consumption sleep conditions and medical history.
Results
RLS was associated with high odds of having perceived olfactory and/or taste dysfunction (adjusted odds ratio =5.92; 95% confidence interval, 3.11, 11.3). The significant association persisted when using Cambridge-Hopkins questionnaire for RLS (adjusted odds ratio =5.55; 95% confidence interval, 2.37-13.0) or when excluding participants with major chronic diseases.
Conclusion
RLS was associated with increased odds of perceived olfactory and taste dysfunction.
Support
This research was supported by start-up grant from the College of Health and Human Development and the Department of Nutritional Sciences, Pennsylvania State University, the Institute for CyberScience Seed Grant Program, Pennsylvania State University, and Natural Science Foundation of Hebei Province (H2018209318).
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Wu S, Wu C, Wang X, Fei W, Ma Y, Fu Y. 0214 The Relationship Between Work Stress and Sleep Quality in Shift Working Nurses: The Intermediate Effect of Circadian Rhythm Amplitude and Stability. Sleep 2020. [DOI: 10.1093/sleep/zsaa056.212] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Introduction
Research suggests that work stress may be an important factor in poor sleep in shift working nurses. However, evidence is limited about the underlying mechanism. Circadian rhythm might be effective. The purpose of this study was to explore the relationship between work stress and sleep quality in shift working nurses and the mediation effect of circadian rhythm amplitude and stability respectively.
Methods
A total of 529 nurses working in shifts from seven hospitals were selected by convenient sampling in Shanghai, China. Participants were assessed with the Circadian Type Inventory (CTI), Chinese Nursing Stressor Scale (CNSS), Pittsburgh Sleep Quality Index (PSQI). The Amos24.0 software was applied to construct structural equation models with circadian rhythm amplitude (LV) and circadian rhythm stability (FR) as intermediate variables respectively.
Results
About 73.3% (388/529) of the nurses’ PSQI scores were above 5, indicating poor sleep quality. The correlations between work stress, circadian rhythm amplitude, circadian rhythm amplitude and sleep quality were all significant (all P<0.01).Sleep quality total score was positively correlated with work stress(γ=0.348) and circadian rhythm amplitude (γ=0.330). Work stress was positively correlated with circadian rhythm amplitude (γ=0.297,P<0.01). Sleep quality total score was negatively correlated circadian rhythm amplitude (γ=-0.204,P<0.01);Work stress was negatively correlated with circadian rhythm amplitude (γ= -0.284,P<0.01).Work stress showed significant indirect effects on sleep quality through the mediating effect of circadian rhythm amplitude (β=0.188,P<0.01) and circadian rhythm amplitude (β= 0.082,P<0.05).
Conclusion
It suggests that nurses working in shifts have poor sleep quality. Work stress and the amplitude and stability of circadian rhythm could affect sleep quality, and circadian rhythm amplitude and stability could mediate the relationship between work stress and sleep quality.
Support
The work was supported by Xinglin Young Talent Program of Shanghai University of Traditional Chinese Medicine(to Caiqin Wu) and The 12th Innovative activities of college students of Shanghai Traditional Chinese Medicine(2019SHUTCM094).
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Hou H, Zhang B, Huang H, Luo Y, Wu S, Tang G, Liu W, Mao L, Mao L, Wang F, Sun Z. Using IL-2R/lymphocytes for predicting the clinical progression of patients with COVID-19. Clin Exp Immunol 2020; 201:76-84. [PMID: 32365221 PMCID: PMC7267633 DOI: 10.1111/cei.13450] [Citation(s) in RCA: 99] [Impact Index Per Article: 24.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Revised: 04/28/2020] [Accepted: 04/28/2020] [Indexed: 12/27/2022] Open
Abstract
Effective laboratory markers for the estimation of disease severity and predicting the clinical progression of coronavirus disease-2019 (COVID-19) is urgently needed. Laboratory tests, including blood routine, cytokine profiles and infection markers, were collected from 389 confirmed COVID-19 patients. The included patients were classified into mild (n = 168), severe (n = 169) and critical groups (n = 52). The leukocytes, neutrophils, infection biomarkers [such as C-reactive protein (CRP), procalcitonin (PCT) and ferritin] and the concentrations of cytokines [interleukin (IL)-2R, IL-6, IL-8, IL-10 and tumor necrosis factor (TNF)-α] were significantly increased, while lymphocytes were significantly decreased with increased severity of illness. The amount of IL-2R was positively correlated with the other cytokines and negatively correlated with lymphocyte number. The ratio of IL-2R to lymphocytes was found to be remarkably increased in severe and critical patients. IL-2R/lymphocytes were superior compared with other markers for the identification of COVID-19 with critical illness, not only from mild but also from severe illness. Moreover, the cytokine profiles and IL-2R/lymphocytes were significantly decreased in recovered patients, but further increased in disease-deteriorated patients, which might be correlated with the outcome of COVID-19. Lymphopenia and increased levels of cytokines were closely associated with disease severity. The IL-2R/lymphocyte was a prominent biomarker for early identification of severe COVID-19 and predicting the clinical progression of the disease.
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