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Zhang D, Lin X, Lv YW, Li ZS, Hu LH. Accurate and detailed research methods are crucial for natural history research of recurrent acute pancreatitis. Dig Liver Dis 2021; 53:1517. [PMID: 34404620 DOI: 10.1016/j.dld.2021.07.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Accepted: 07/16/2021] [Indexed: 12/11/2022]
Affiliation(s)
- Di Zhang
- Department of Gastroenterology, Changhai Hospital, The Second Military Medical University, Shanghai, China
| | - Xi Lin
- Department of Gastroenterology, Changhai Hospital, The Second Military Medical University, Shanghai, China
| | - Yan-Wei Lv
- Department of Gastroenterology, Changhai Hospital, The Second Military Medical University, Shanghai, China
| | - Zhao-Shen Li
- Department of Gastroenterology, Changhai Hospital, The Second Military Medical University, Shanghai, China
| | - Liang-Hao Hu
- Department of Gastroenterology, Changhai Hospital, The Second Military Medical University, Shanghai, China.
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202
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Hu M, Lin L, Liu J, Zhong Y, Liang B, Huang Y, Li Z, Lin X, Wang B, Zhang B, Meng H, Ye R, Du J, Dai M, Peng Y, Li H, Wu Q, Gao H, Yang X, Huang Z. Aurantio-obtusin induces hepatotoxicity through activation of NLRP3 inflammasome signaling. Toxicol Lett 2021; 354:1-13. [PMID: 34718095 DOI: 10.1016/j.toxlet.2021.10.011] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Revised: 10/15/2021] [Accepted: 10/26/2021] [Indexed: 12/08/2022]
Abstract
Aurantio-obtusin (AO) is a major anthraquinone (AQ) compound derived from Cassiae semen (CS). Although pharmacological studies have shown that the CS extracts can serve as effective agents in preclinical and clinical practice, AQ-induced hepatotoxicity in humans has attracted widespread attention. To explore whether AO induces hepatotoxicity and its underlying mechanisms, we exposed larval zebrafish and mice to AO. We found that AO delayed yolk sac absorption, and increased liver area and inflammation in the larval zebrafish. This inflammation was manifested as an increase in liver neutrophils and the up-regulated mRNA expression of interleukin-6 (Il-6) and tumor necrosis factor-α (Tnf-α) in the larval zebrafish. Furthermore, a pharmacokinetics study showed that AO was quickly absorbed into the blood and rapidly metabolized in the mice. Of note, AO induced hepatotoxicity in a gender-dependent manner, characterized by liver dysfunction, increased hepatocyte necrosis with inflammatory infiltration, and up-regulated mRNAs of Il-6, Tnf-α and monocyte chemotactic protein 1(Mcp1) in the female mice after 28-day oral administration. It also highlighted that AO triggered NOD-like receptor protein (NLRP) signaling in the female mice, as evidenced by the increased NLRP3, Caspase-1, pro-IL-1β, IL-1β and IL-18. Finally, we found that AO led to a significant increase in potassium calcium-activated channel, subfamily N, member 4 (KCNN4) and reactive oxygen species (ROS) levels, along with decreased nuclear factor kappa B p65 (NF-κB p65), in the female mouse livers. In conclusion, AO induced hepatotoxicity by activating NLRP3 inflammasome signaling, at least in part, through increased KCNN4 and ROS production, and NF-κB inhibition.
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Affiliation(s)
- Manjiang Hu
- NMPA Key Laboratory for Safety Evaluation of Cosmetics, Guangdong Provincial Key Laboratory of Tropical Disease Research, Department of Toxicology, School of Public Health, Southern Medical University, Guangzhou, 510515, China
| | - Li Lin
- NMPA Key Laboratory for Safety Evaluation of Cosmetics, Guangdong Provincial Key Laboratory of Tropical Disease Research, Department of Toxicology, School of Public Health, Southern Medical University, Guangzhou, 510515, China
| | - Jun Liu
- NMPA Key Laboratory for Safety Evaluation of Cosmetics, Guangdong Provincial Key Laboratory of Tropical Disease Research, Department of Toxicology, School of Public Health, Southern Medical University, Guangzhou, 510515, China
| | - Yizhou Zhong
- NMPA Key Laboratory for Safety Evaluation of Cosmetics, Guangdong Provincial Key Laboratory of Tropical Disease Research, Department of Toxicology, School of Public Health, Southern Medical University, Guangzhou, 510515, China
| | - Boxuan Liang
- NMPA Key Laboratory for Safety Evaluation of Cosmetics, Guangdong Provincial Key Laboratory of Tropical Disease Research, Department of Toxicology, School of Public Health, Southern Medical University, Guangzhou, 510515, China
| | - Yuji Huang
- NMPA Key Laboratory for Safety Evaluation of Cosmetics, Guangdong Provincial Key Laboratory of Tropical Disease Research, Department of Toxicology, School of Public Health, Southern Medical University, Guangzhou, 510515, China
| | - Zhiming Li
- NMPA Key Laboratory for Safety Evaluation of Cosmetics, Guangdong Provincial Key Laboratory of Tropical Disease Research, Department of Toxicology, School of Public Health, Southern Medical University, Guangzhou, 510515, China
| | - Xi Lin
- NMPA Key Laboratory for Safety Evaluation of Cosmetics, Guangdong Provincial Key Laboratory of Tropical Disease Research, Department of Toxicology, School of Public Health, Southern Medical University, Guangzhou, 510515, China
| | - Bo Wang
- NMPA Key Laboratory for Safety Evaluation of Cosmetics, Guangdong Provincial Key Laboratory of Tropical Disease Research, Department of Toxicology, School of Public Health, Southern Medical University, Guangzhou, 510515, China
| | - Bingli Zhang
- NMPA Key Laboratory for Safety Evaluation of Cosmetics, Guangdong Provincial Key Laboratory of Tropical Disease Research, Department of Toxicology, School of Public Health, Southern Medical University, Guangzhou, 510515, China
| | - Hao Meng
- NMPA Key Laboratory for Safety Evaluation of Cosmetics, Guangdong Provincial Key Laboratory of Tropical Disease Research, Department of Toxicology, School of Public Health, Southern Medical University, Guangzhou, 510515, China
| | - Rongyi Ye
- NMPA Key Laboratory for Safety Evaluation of Cosmetics, Guangdong Provincial Key Laboratory of Tropical Disease Research, Department of Toxicology, School of Public Health, Southern Medical University, Guangzhou, 510515, China
| | - Jiaxin Du
- NMPA Key Laboratory for Safety Evaluation of Cosmetics, Guangdong Provincial Key Laboratory of Tropical Disease Research, Department of Toxicology, School of Public Health, Southern Medical University, Guangzhou, 510515, China
| | - Mingzhu Dai
- Hunter Biotechnology, Inc., Hangzhou, 310051, China
| | - Yi Peng
- Hunter Biotechnology, Inc., Hangzhou, 310051, China
| | - Hongqun Li
- Hunter Biotechnology, Inc., Hangzhou, 310051, China
| | - Qinghong Wu
- Laboratory Animal Management Center, School of Public Health, Southern Medical University, Guangzhou, 510515, China
| | - Hongbin Gao
- NMPA Key Laboratory for Safety Evaluation of Cosmetics, Guangdong Provincial Key Laboratory of Tropical Disease Research, Department of Toxicology, School of Public Health, Southern Medical University, Guangzhou, 510515, China
| | - Xingfen Yang
- Food Safety and Health Research Center, School of Public Health, Southern Medical University, Guangzhou, 510515, China
| | - Zhenlie Huang
- NMPA Key Laboratory for Safety Evaluation of Cosmetics, Guangdong Provincial Key Laboratory of Tropical Disease Research, Department of Toxicology, School of Public Health, Southern Medical University, Guangzhou, 510515, China.
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203
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Zhou X, Tang X, Xu H, Jiang T, Hu K, Qiu HJ, Lin X. Designing Ru-doped Zn 3V 3O 8 bifunctional OER and HER catalysts through a unified computational and experimental approach. Nanoscale 2021; 13:17457-17464. [PMID: 34647934 DOI: 10.1039/d1nr04978j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Developing stable and cost-effective catalysts is the key to the next-generation renewable energy conversion technology. Here we unify computational and experimental approaches to use the Zn3V3O8 (001) surface supporting noble metal Ru as a bifunctional catalyst for the OER and HER in alkaline media. In particular, different reaction sites have been studied at four surface terminations along the [001] orientation: the A-layer with V atoms at octahedral sites, the C-layer with V and Zn atoms at octahedral sites, and with additional Zn atoms at tetrahedral sites (B-layer and D-layer, respectively). The first-principles density functional theory (DFT) results indicate that the B-layer termination with V and tetrahedrally coordinated Zn on the top showed the best OER catalytic effect, while the HER favored the D-layer termination with extra Zn atoms at the octahedral sites on the top layer. Our DFT results also suggest that Ru doping by substituting V and Zn atoms at the octahedral site could dramatically enhance the catalytic activities for the OER and HER, respectively. In particular, compared to undoped Zn3V3O8, Ru doping could reduce the calculated OER overpotential from 0.58 V to 0.30 V, which has been confirmed by our experimental results that the OER overpotential decreased from 480 mV to 260 mV at a current density of 10 mA cm-o. Moreover, the experimental results show that Ru doping could reduce the HER overpotential from 152 mV to 70 mV at a current density of 10 mA cm-r. The new insights into the underlying catalytic mechanisms may be further extended to many similar electrocatalytic processes.
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Affiliation(s)
- Xuyan Zhou
- School of Materials Science and Engineering, Harbin Institute of Technology, Shenzhen 518055, P. R. China.
- Blockchain Development and Research Institute, Harbin Institute of Technology, Shenzhen 518055, P.R. China
| | - Xiaowei Tang
- Mathematical School, Qilu Normal University, Jinan 250200, China
| | - Haitao Xu
- School of Materials Science and Engineering, Dongguan University of Technology, Dongguan 523808, China.
| | - Tao Jiang
- School of Materials Science and Engineering, Harbin Institute of Technology, Shenzhen 518055, P. R. China.
| | - Kailong Hu
- School of Materials Science and Engineering, Harbin Institute of Technology, Shenzhen 518055, P. R. China.
- Blockchain Development and Research Institute, Harbin Institute of Technology, Shenzhen 518055, P.R. China
| | - Hua-Jun Qiu
- School of Materials Science and Engineering, Harbin Institute of Technology, Shenzhen 518055, P. R. China.
- Blockchain Development and Research Institute, Harbin Institute of Technology, Shenzhen 518055, P.R. China
| | - Xi Lin
- School of Materials Science and Engineering, Harbin Institute of Technology, Shenzhen 518055, P. R. China.
- Blockchain Development and Research Institute, Harbin Institute of Technology, Shenzhen 518055, P.R. China
- State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin 150001, P. R. China
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204
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Zhao C, Qiu P, Li M, Liang K, Tang Z, Chen P, Zhang J, Fan S, Lin X. The spatial form periosteal-bone complex promotes bone regeneration by coordinating macrophage polarization and osteogenic-angiogenic events. Mater Today Bio 2021; 12:100142. [PMID: 34647005 PMCID: PMC8495177 DOI: 10.1016/j.mtbio.2021.100142] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Revised: 09/09/2021] [Accepted: 09/14/2021] [Indexed: 11/18/2022] Open
Abstract
Bone defects associated with soft tissue injuries are an important cause of deformity that threatens people’s health and quality of life. Although bone substitutes have been extensively explored, effective biomaterials that can coordinate early inflammation regulation and subsequent repair events are still lacking. We prepared a spatial form periosteal bone extracellular matrix (ECM) scaffold, which has advantages in terms of low immunogenicity, good retention of bioactive ingredients, and a natural spatial structure. The periosteal bone ECM scaffold with the relatively low-stiffness periosteum (41.6 ± 3.7 kPa) could inhibit iNOS and IL-1β expression, which might be related to actin-mediated YAP translocation. It also helped to promote CD206 expression with the potential influence of proteins related to immune regulation. Moreover, the scaffold combined the excellent properties of decalcified bone and periosteum, promoted the formation of blood vessels, and good osteogenic differentiation (RUNX2, Col 1α1, ALP, OPN, and OCN), and achieved good repair of a cranial defect in rats. This scaffold, with its natural structural and biological advantages, provides a new idea for bone healing treatment that is aligned with bone physiology. We provided a spatial form periosteal-bone complex. The scaffold preserved major biological components and spatial structure. The periosteum part of the scaffold acted as a physical barrier. The scaffold participated in the transformation of the macrophage phenotype. The scaffold promoted osteogenesis and angiogenesis.
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Affiliation(s)
- C. Zhao
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital, Medical College of Zhejiang University, Hangzhou, China
- Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, China
| | - P. Qiu
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital, Medical College of Zhejiang University, Hangzhou, China
- Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, China
| | - M. Li
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital, Medical College of Zhejiang University, Hangzhou, China
- Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, China
| | - K. Liang
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital, Medical College of Zhejiang University, Hangzhou, China
- Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, China
| | - Z. Tang
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital, Medical College of Zhejiang University, Hangzhou, China
- Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, China
| | - P. Chen
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital, Medical College of Zhejiang University, Hangzhou, China
- Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, China
| | - J. Zhang
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital, Medical College of Zhejiang University, Hangzhou, China
- Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, China
| | - S. Fan
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital, Medical College of Zhejiang University, Hangzhou, China
- Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, China
- Corresponding author.
| | - X. Lin
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital, Medical College of Zhejiang University, Hangzhou, China
- Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, China
- Corresponding author.
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205
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Zhang S, Xie X, He C, Lin X, Luo M, Lin M, Fang M, You Z, Lin K, Guo Y. Evaluation of different late left ventricular remodeling definitions for predicting long-term outcomes in acute myocardial infarction patients undergoing percutaneous coronary intervention. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.1486] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Late left ventricular remodeling (LLVR) after the index acute myocardial infarction (AMI) is a common complication, and is associated with poor outcome. However, the optimal definition of LLVR has been debated because of its different incidence and influence on prognosis. At present, there are limited data regarding the influence of different LLVR definitions on long-term outcomes in AMI patients undergoing percutaneous coronary intervention (PCI).
Purpose
To explore the impact of different definitions of LLVR on long-term mortality, re-hospitalization or an urgent visit for heart failure, and identify which definition was more suitable for predicting long-term outcomes in AMI patients undergoing PCI.
Methods
We prospectively observed 460 consenting first-time AMI patients undergoing PCI from January 2012 to December 2018. LLVR was defined as a ≥20% increase in left ventricular end-diastolic volume (LVEDV), or a >15% increase in left ventricular end-systolic volume (LVESV) from the initial presentation to the 3–12 months follow-up, or left ventricular ejection fraction (LVEF) <50% at follow up. These parameters of the cardiac structure and function were measuring through the thoracic echocardiography. The association of LLVR with long-term prognosis was investigated by Cox regression analysis.
Results
The incidence rate of LLVR was 38.1% (n=171). The occurrence of LLVR according to LVESV, LVEDV and LVEF definition were 26.6% (n=117), 31.9% (n=142) and 11.5% (n=51), respectively. During a median follow-up of 2 years, after adjusting other potential risk factors, multivariable Cox regression analysis revealed LLVR of LVESV definition [hazard ratio (HR): 2.50, 95% confidence interval (CI): 1.19–5.22, P=0.015], LLVR of LVEF definition (HR: 16.46, 95% CI: 6.96–38.92, P<0.001) and LLVR of Mix definition (HR: 5.86, 95% CI: 2.45–14.04, P<0.001) were risk factors for long-term mortality, re-hospitalization or an urgent visit for heart failure. But only LLVR of LVEF definition was a risk predictor for long-term mortality (HR: 6.84, 95% CI: 1.98–23.65, P=0.002).
Conclusions
LLVR defined by LVESV or LVEF may be more suitable for predicting long-term mortality, re-hospitalization or an urgent visit for heart failure in AMI patients undergoing PCI. However, only LLVR defined by LVEF could be used for predicting long-term mortality.
Funding Acknowledgement
Type of funding sources: None. Association Between LLVR and outcomesKaplan-Meier Estimates of the Mortality
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Affiliation(s)
- S Zhang
- Fujian Medical University, Fuzhou, China
| | - X Xie
- Fujian Medical University, Fuzhou, China
| | - C He
- Fujian Medical University, Fuzhou, China
| | - X Lin
- Fujian Medical University, Fuzhou, China
| | - M Luo
- Fujian Medical University, Fuzhou, China
| | - M Lin
- Fujian Medical University, Fuzhou, China
| | - M Fang
- Fujian Provincial Hospital, Department of Cardiology, Fuzhou, China
| | - Z You
- Fujian Provincial Hospital, Department of Cardiology, Fuzhou, China
| | - K Lin
- Fujian Provincial Hospital, Department of Cardiology, Fuzhou, China
| | - Y Guo
- Fujian Provincial Hospital, Department of Cardiology, Fuzhou, China
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206
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He H, Lin X, Luo M, He C, Zhang S, Lin M, Lin K, Guo Y. Predictive value of neutrophil percentage-to-albumin ratio for contrast-associated acute kidney injury in patients without chronic kidney disease undergoing elective percutaneous coronary intervention. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.1112] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Although previous studies have demonstrated that neutrophil and albumin are biomarkers of inflammation and malnutrition, which are highly related with contrast-associated acute kidney injury (CA-AKI). However, there has been no study investigated the combined evaluation of neutrophil and albumin in predicting CA-AKI.
Purpose
To explore the predictive value of neutrophil percentage-to-albumin ratio (NPAR) for CA-AKI in patients undergoing elective percutaneous coronary intervention (PCI).
Methods
We prospectively observed 5083 consenting patients without chronic kidney disease (CKD) undergoing elective PCI from January 2012 to December 2018. NPAR was calculated as neutrophil percentage numerator divided by serum albumin concentration. CA-AKI was defined as an increase in serum creatinine (SCr) ≥50% or 0.3 mg/dL within 48 hours after contrast medium exposure. The association between NPAR and CA-AKI was investigated by logistic regression analysis. The area under the receiver-operating characteristic curve (AUC), continuous net reclassification improvement (NRI), and integrated discrimination improvement (IDI) were calculated to make comparison for CA-AKI prediction.
Result
The incidence of CA-AKI was 5.6% (n=286). The median NPAR was 14.9 (13.0–17.1). According to the receiver operating characteristic curves (ROC), the best cut-off value of NPAR for predicting CA-AKI was 15.7 with 66.8% sensitivity and 61.9% specificity (C statistic=0.679; 95% CI, 0.666–0.691). NPAR displayed higher AUC value in comparison to neutrophil percentage (p<0.001), but not albumin (P=0.063), as a predictor of CA-AKI. However, NPAR significantly improved the prediction of CA-AKI in the continuous NRI and IDI over neutrophil percentage (NRI: 0.353, 95% CI: 0.234–0.472, P<0.001; IDI: 0.017, 95% CI: 0.010–0.024, p<0.001) and albumin (NRI: 0.141, 95% CI: 0.022–0.260, P=0.020; IDI: 0.009, 95% CI: 0.003–0.015, p=0.003) alone. After adjusting for potential confounding risk factors of CA-AKI, multivariable logistic analysis showed that NPAR >15.7 was a strong independent predictor of CA-AKI (OR=1.998, 95% CI, 1.511–2.643, p<0.001).
Conclusion
NPAR is an independent predictor of CA-AKI, which significantly improved the prediction of CA-AKI over neutrophil and albumin alone in patients without CKD undergoing elective PCI.
Funding Acknowledgement
Type of funding sources: None. ROC for NPAR to predict CA-AKIPredictors of CA-AKI
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Affiliation(s)
- H He
- Fujian Medical University,Fujian Provincial Hospital, Cardiology, Fuzhou, China
| | - X Lin
- Fujian Medical University,Fujian Provincial Hospital, Cardiology, Fuzhou, China
| | - M Luo
- Fujian Medical University,Fujian Provincial Hospital, Cardiology, Fuzhou, China
| | - C He
- Fujian Medical University,Fujian Provincial Hospital, Cardiology, Fuzhou, China
| | - S Zhang
- Fujian Medical University,Fujian Provincial Hospital, Cardiology, Fuzhou, China
| | - M Lin
- Fujian Medical University,Fujian Provincial Hospital, Cardiology, Fuzhou, China
| | - K Lin
- Fujian Provincial Hospital, Cardiology, Fuzhou, China
| | - Y Guo
- Fujian Provincial Hospital, Cardiology, Fuzhou, China
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207
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Li WY, Du ZC, Wang Y, Lin X, Lu L, Fang Q, Zhang WF, Cai MW, Xu L, Hao YT. [Epidemiological characteristics of local outbreak of COVID-19 caused by SARS-CoV-2 Delta variant in Liwan district, Guangzhou]. Zhonghua Liu Xing Bing Xue Za Zhi 2021; 42:1763-1768. [PMID: 34814609 DOI: 10.3760/cma.j.cn112338-20210613-00472] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To analyze the epidemiological characteristics of a local outbreak of COVID-19 caused by SARS-CoV-2 B.1.617.2(Delta) variant in Liwan district, Guangzhou, and provide evidence for the further prevention and control of the Delta variant of COVID-19. Methods: From May 21 to June 18, 2021, the incidence data of COVID-19 caused by Delta variant were obtained from National Notifiable Disease Report System of Chinese Disease Prevention and Control Information System and Liwan District Center for Disease Control and Prevention of Guangzhou.Frequency analysis (proportions), histograms, and percentage stacked area plots were used to describe the epidemiological characteristics of the outbreaks. The incubation period and time-varying reproduction numbers (Rt) estimations were used for the further analysis. Results: By June 18, 2021, a total of 127 COVID-19 cases caused by Delta variant was reported in Liwan district. The youngest case was aged 2 years and the oldest was aged 85 years. There were 18.9% (24/127) aged <18 years, 43.3% (55/127) aged 18-59 years, and 37.8% (48/127) aged ≥60 years, the male to female ratio of the cases was 1∶1.35 (54∶73). The cases were mainly retired people (32.3%, 41/127), the jobless or unemployed (18.1%, 23/127), and students (16.5%, 21/127). The infections mainly occurred in Baihedong (70.1%, 89/127) and Zhongnan street (23.6%, 30/127) communities in the southern area of Liwan district. The median incubation period of the Delta variant infection was 6 days (range: 1-15 days). The clinical classification were mainly common type (64.6%, 82/127). The basic reproduction number (R0) was 5.1, Rt which once increased to 7.3. The transmissions mainly occurred in confined spaces, such as home (26.8%), restaurant (29.1%), neighborhood (3.9%), and market (3.1%), the household clustering was predominant. Close contacts tracing (66.1%) and community screening (33.1%) were the main ways to find the infections. Conclusion: The COVID-19 outbreak caused by Delta variant in Liwan district of Guangzhou was highly contagious, with the obvious characteristics of household clustering and high proportions of cases in adults aged 18-59 years and elderly people aged ≥60 years.
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Affiliation(s)
- W Y Li
- Division of Disease Prevention, Liwan District Center for Disease Control and Prevention of Guangzhou, Guangzhou 510000, China
| | - Z C Du
- Department of Medical Statistics, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Y Wang
- Department of Medical Statistics, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - X Lin
- Department of Medical Statistics, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - L Lu
- Division of Disease Prevention, Liwan District Center for Disease Control and Prevention of Guangzhou, Guangzhou 510000, China
| | - Q Fang
- Division of Disease Prevention, Liwan District Center for Disease Control and Prevention of Guangzhou, Guangzhou 510000, China
| | - W F Zhang
- Division of Disease Prevention, Liwan District Center for Disease Control and Prevention of Guangzhou, Guangzhou 510000, China
| | - M W Cai
- Division of Disease Prevention, Liwan District Center for Disease Control and Prevention of Guangzhou, Guangzhou 510000, China
| | - L Xu
- Department of Epidemiology,School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Y T Hao
- Department of Medical Statistics, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
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208
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Zhang Y, Lyu J, Zhao YL, Hu K, Chen Z, Lin X, Xie G, Liu X, Qiu HJ. In situ coupling of Ag nanoparticles with high-entropy oxides as highly stable bifunctional catalysts for wearable Zn-Ag/Zn-air hybrid batteries. Nanoscale 2021; 13:16164-16171. [PMID: 34543369 DOI: 10.1039/d1nr03539h] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
With the combination of the advantages of both Zn-Ag and Zn-air batteries, hybrid Zn-Ag/Zn-air batteries nevertheless suffer greatly from structural instability and activity degradation of the catalysts at the air electrodes. Herein, we introduce a scalable chemical dealloying procedure to synthesize mutually interacting and stable bifunctional catalysts, consisting of imbedded Ag nanoparticles for the oxygen reduction reaction (ORR) and quantitatively designed multicomponent high-entropy oxides (HEOs) for the oxygen evolution reaction (OER). The ORR performance and the Zn-Ag battery capacity can be precisely controlled by the content of Ag nanoparticles. Impressively, with a significantly low Ag content (∼9.13 wt%) in the bifunctional (AlNiCoFeCr)3O4/Ag, our hybrid Zn-Ag/Zn-air batteries using such catalysts are able to be continuously charged/discharged for more than 450 h and deliver a high energy density of 810 W h kg-1. We expect that these stabilized noble metals in HEO nanocomposites may work as multifunctional electrocatalysts in many other energy conversion devices.
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Affiliation(s)
- Yanyi Zhang
- School of Materials Science and Engineering and Institute of Blockchain Research and Development, Harbin Institute of Technology, Shenzhen, 518055, China.
| | - Juan Lyu
- School of Physics Science and Technology, Inner Mongolia University, Hohhot 010021, China
| | - Yi-Lu Zhao
- School of Materials Science and Engineering and Institute of Blockchain Research and Development, Harbin Institute of Technology, Shenzhen, 518055, China.
| | - Kailong Hu
- School of Materials Science and Engineering and Institute of Blockchain Research and Development, Harbin Institute of Technology, Shenzhen, 518055, China.
| | - Zuhuang Chen
- School of Materials Science and Engineering and Institute of Blockchain Research and Development, Harbin Institute of Technology, Shenzhen, 518055, China.
| | - Xi Lin
- School of Materials Science and Engineering and Institute of Blockchain Research and Development, Harbin Institute of Technology, Shenzhen, 518055, China.
| | - Guoqiang Xie
- School of Materials Science and Engineering and Institute of Blockchain Research and Development, Harbin Institute of Technology, Shenzhen, 518055, China.
| | - Xingjun Liu
- School of Materials Science and Engineering and Institute of Blockchain Research and Development, Harbin Institute of Technology, Shenzhen, 518055, China.
- Shenzhen R&D Center for Al-based Hydrogen Hydrolysis Materials, Shenzhen, 518055, China
| | - Hua-Jun Qiu
- School of Materials Science and Engineering and Institute of Blockchain Research and Development, Harbin Institute of Technology, Shenzhen, 518055, China.
- Shenzhen R&D Center for Al-based Hydrogen Hydrolysis Materials, Shenzhen, 518055, China
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209
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Wang Y, Xia K, Wang XN, Lin X, Liu J, Li YJ, Liu XL, Zhao WJ, Zhang YG, Guo JH. Improvement of feed intake, digestibility, plasma metabolites, and lactation performance of dairy cows fed mixed silage of sugar beet pulp and rice straw inoculated with lactic acid bacteria. J Dairy Sci 2021; 105:269-280. [PMID: 34600711 DOI: 10.3168/jds.2021-20494] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2021] [Accepted: 08/19/2021] [Indexed: 11/19/2022]
Abstract
A study was conducted to investigate the inclusion effects of sugar beet pulp and rice straw mixture silage with inoculation (BRMS), in place of whole-plant corn silage (CS), on the dry matter intake, total-tract nutrient digestibility, plasma metabolites, rumen fermentation, and lactation performance in high-production dairy cows. Sixteen multiparous Holstein cows (body weight, 622 ± 35 kg; days in milk, 90 ± 11 d; mean ± standard deviation) were used in our experiments; the experiments were based on a repeated 4 × 4 Latin square design for 21 d, and each experimental period consisted of 14 d of adaptation, followed by 7 d of data collection. The 4 dietary treatments used were (dry matter basis): (1) 0% BRMS and 28.6% CS (0BRMS); (2) 4.3% BRMS and 24.3% CS (15BRMS); (3) 8.60% BRMS and 20.0% CS (30BRMS); and (4) 12.9% BRMS and 15.7% CS (45BRMS). The increasing inclusion of dietary BRMS was observed to linearly increase the total volatile fatty acids and the propionate concentration. The dry matter intake and digestibility values of neutral detergent fiber and acid detergent fiber increased linearly as the percentage of BRMS increased up to 45%. Milk yield linearly increased with the increase in the content of BRMS (39.0, 39.8, 40.9, and 40.3 kg/d for 0BRMS, 15BRMS, 30BRMS, and 45BRMS, respectively). The increasing inclusion of dietary BRMS induced a decrease in the ammonia nitrogen and milk urea nitrogen concentration, leading to a linear increase in milk protein production (1.15, 1.26, 1.35, and 1.27 kg/d for 0BRMS, 15BRMS, 30BRMS, and 45BRMS, respectively). In conclusion, the diets with the replacement of CS with BRMS up to 45% were beneficial to the production performance of high-production dairy cows, indicating that this method may be an appropriate use of sugar beet pulp and rice straw.
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Affiliation(s)
- Y Wang
- College of Food and Biological Engineering, Qiqihar University, Qiqihar, 161006, China; Animal Science and Technology Institute, Northeast Agriculture University, Harbin, 150030, China
| | - K Xia
- China Oil and Foodstuffs Corporation, Harbin, 150000, China
| | - X N Wang
- Agricultural Experiment Base, Changchun, 130015, China
| | - X Lin
- AB Agri Ltd., 200050, Shanghai, China
| | - J Liu
- College of Food and Biological Engineering, Qiqihar University, Qiqihar, 161006, China
| | - Y J Li
- Animal Science and Technology Institute, Northeast Agriculture University, Harbin, 150030, China
| | - X L Liu
- College of Food and Biological Engineering, Qiqihar University, Qiqihar, 161006, China.
| | - W J Zhao
- Harbin Wondersun Pasture, Heilongjiang Academy of Agricultural Sciences, Harbin, 150030, China
| | - Y G Zhang
- Animal Science and Technology Institute, Northeast Agriculture University, Harbin, 150030, China.
| | - J H Guo
- College of Food and Biological Engineering, Qiqihar University, Qiqihar, 161006, China
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210
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Zhou C, Lin X, Yuan M, Xia X. P48.04 EGFR Germline Mutations in Chinese Lung Cancer Patients: A Single Institutional, Retrospective Study. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.08.515] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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211
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Ren S, He J, Fang Y, Chen G, Ma Z, Chen J, Guo R, Lin X, Yao Y, Wu G, Wang Q, Zhou C. MA13.01 Camrelizumab Plus Apatinib in Treatment-Naive Patients With Advanced Non-Squamous NSCLC: A Multicenter, Open-Label, Single-Arm, Phase 2 Trial. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.08.175] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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212
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Lu S, Yu X, Wang J, Zhao J, Yu Y, Hu C, Feng G, Ying K, Zhuang W, Zhou J, Wu J, Leaw S, Bai F, Lin X. P17.02 RATIONALE 307: A Subgroup Analysis of Tislelizumab Plus Chemo vs Chemo Alone As 1L Treatment for Stage IIIB Advanced Sq NSCLC. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.08.348] [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: 11/16/2022]
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213
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Wang X, Xue W, Zhang Z, Li X, Yin L, Chen C, Yu B, Sui J, Cao F, Liu X, Mao J, Wang Y, Lin X, Zhang Q. Stabilizing the Optimal Carrier Concentration in Al/Sb-Codoped GeTe for High Thermoelectric Performance. ACS Appl Mater Interfaces 2021; 13:45717-45725. [PMID: 34541842 DOI: 10.1021/acsami.1c12282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
GeTe is a promising thermoelectric material and has attracted growing research interest recently. In this study, the effect of Al doping and Al&Sb codoping on the thermoelectric properties of GeTe was investigated. Due to the presence of a high concentration of intrinsic Ge vacancies, pristine GeTe exhibited a very high hole concentration and unpromising thermoelectric performance. By Sb doping in GeTe, the hole concentration can be effectively reduced, thus improving the thermoelectric performance. Aluminum, as a p-type dopant in GeTe, will increase the hole concentration and lattice thermal conductivity; thus, it has long been considered as an unfavorable dopant for the optimization of GeTe-based materials. However, when Al and Sb were codoped into GeTe, the hole concentration was effectively suppressed, and the lattice thermal conductivity can be reduced. Eventually, a maximum zT of ∼2.0 at 773 K was achieved in Al&Sb-codoped Al0.01Sb0.1Ge0.89Te.
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Affiliation(s)
- Xinyu Wang
- School of Materials Science and Engineering, and Institute of Materials Genome & Big Data, Harbin Institute of Technology, Shenzhen 518055, P. R. China
| | - Wenhua Xue
- School of Materials Science and Engineering, and Institute of Materials Genome & Big Data, Harbin Institute of Technology, Shenzhen 518055, P. R. China
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Science, Beijing 100190, P. R. China
| | - Zongwei Zhang
- School of Materials Science and Engineering, and Institute of Materials Genome & Big Data, Harbin Institute of Technology, Shenzhen 518055, P. R. China
| | - Xiaofang Li
- School of Materials Science and Engineering, and Institute of Materials Genome & Big Data, Harbin Institute of Technology, Shenzhen 518055, P. R. China
| | - Li Yin
- School of Materials Science and Engineering, and Institute of Materials Genome & Big Data, Harbin Institute of Technology, Shenzhen 518055, P. R. China
| | - Chen Chen
- School of Materials Science and Engineering, and Institute of Materials Genome & Big Data, Harbin Institute of Technology, Shenzhen 518055, P. R. China
| | - Bo Yu
- Ningbo Fengcheng Advanced Energy Materials Research Institute, Fenghua District, Ningbo, Zhejiang 315500, China
| | - Jiehe Sui
- State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin 150001, P. R. China
| | - Feng Cao
- School of Science, Harbin Institute of Technology, Shenzhen 518055, P. R. China
| | - Xingjun Liu
- School of Materials Science and Engineering, and Institute of Materials Genome & Big Data, Harbin Institute of Technology, Shenzhen 518055, P. R. China
- State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin 150001, P. R. China
| | - Jun Mao
- School of Materials Science and Engineering, and Institute of Materials Genome & Big Data, Harbin Institute of Technology, Shenzhen 518055, P. R. China
- State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin 150001, P. R. China
| | - Yumei Wang
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Science, Beijing 100190, P. R. China
| | - Xi Lin
- School of Materials Science and Engineering, and Institute of Materials Genome & Big Data, Harbin Institute of Technology, Shenzhen 518055, P. R. China
- State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin 150001, P. R. China
- Blockchain Development and Research Institute, Harbin Institute of Technology, Shenzhen 518055, P. R. China
| | - Qian Zhang
- School of Materials Science and Engineering, and Institute of Materials Genome & Big Data, Harbin Institute of Technology, Shenzhen 518055, P. R. China
- State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin 150001, P. R. China
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214
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Liu Y, Qi S, Fang J, Sun J, Liu C, Liu Y, Qi J, Xing Y, Liu H, Lin X, Wang L, Xue QK, Xie XC, Wang J. Observation of In-Plane Quantum Griffiths Singularity in Two-Dimensional Crystalline Superconductors. Phys Rev Lett 2021; 127:137001. [PMID: 34623853 DOI: 10.1103/physrevlett.127.137001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Revised: 01/27/2021] [Accepted: 08/09/2021] [Indexed: 06/13/2023]
Abstract
Quantum Griffiths singularity (QGS) reveals the profound influence of quenched disorder on the quantum phase transitions, characterized by the divergence of the dynamical critical exponent at the boundary of the vortex glasslike phase, named as quantum Griffiths phase. However, in the absence of vortices, whether the QGS can exist under a parallel magnetic field remains a puzzle. Here, we study the magnetic field induced superconductor-metal transition in ultrathin crystalline PdTe_{2} films grown by molecular beam epitaxy. Remarkably, the QGS emerges under both perpendicular and parallel magnetic field in four-monolayer PdTe_{2} films. The direct activated scaling analysis with a new irrelevant correction has been proposed, providing important evidence of QGS. With increasing film thickness to six monolayers, the QGS disappears under perpendicular field but persists under parallel field, and this discordance may originate from the differences in microscopic processes. Our work demonstrates the universality of parallel field induced QGS and can stimulate further investigations on novel quantum phase transitions under parallel magnetic field.
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Affiliation(s)
- Yi Liu
- International Center for Quantum Materials, School of Physics, Peking University, Beijing 100871, China
- Department of Physics, Renmin University of China, Beijing 100872, China
| | - Shichao Qi
- International Center for Quantum Materials, School of Physics, Peking University, Beijing 100871, China
| | - Jingchao Fang
- International Center for Quantum Materials, School of Physics, Peking University, Beijing 100871, China
| | - Jian Sun
- International Center for Quantum Materials, School of Physics, Peking University, Beijing 100871, China
| | - Chong Liu
- State Key Laboratory of Low-Dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing 100084, China
| | - Yanzhao Liu
- International Center for Quantum Materials, School of Physics, Peking University, Beijing 100871, China
| | - Junjie Qi
- Beijing Academy of Quantum Information Sciences, Beijing 100193, China
| | - Ying Xing
- Department of Materials Science and Engineering, College of New Energy and Materials, China University of Petroleum, Beijing 102249, China
| | - Haiwen Liu
- Center for Advanced Quantum Studies, Department of Physics, Beijing Normal University, Beijing 100875, China
| | - Xi Lin
- International Center for Quantum Materials, School of Physics, Peking University, Beijing 100871, China
- Beijing Academy of Quantum Information Sciences, Beijing 100193, China
- CAS Center for Excellence in Topological Quantum Computation, University of Chinese Academy of Sciences, Beijing 100190, China
| | - Lili Wang
- State Key Laboratory of Low-Dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing 100084, China
| | - Qi-Kun Xue
- State Key Laboratory of Low-Dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing 100084, China
- Beijing Academy of Quantum Information Sciences, Beijing 100193, China
| | - X C Xie
- International Center for Quantum Materials, School of Physics, Peking University, Beijing 100871, China
- Beijing Academy of Quantum Information Sciences, Beijing 100193, China
- CAS Center for Excellence in Topological Quantum Computation, University of Chinese Academy of Sciences, Beijing 100190, China
| | - Jian Wang
- International Center for Quantum Materials, School of Physics, Peking University, Beijing 100871, China
- Beijing Academy of Quantum Information Sciences, Beijing 100193, China
- CAS Center for Excellence in Topological Quantum Computation, University of Chinese Academy of Sciences, Beijing 100190, China
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215
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Yu H, Huang Y, Ge Y, Hong X, Lin X, Tang K, Wang Q, Yang Y, Sun W, Huang Y, Luo H. Selenite-induced ROS/AMPK/FoxO3a/GABARAPL-1 signaling pathway modulates autophagy that antagonize apoptosis in colorectal cancer cells. Discov Oncol 2021; 12:35. [PMID: 35201430 PMCID: PMC8777540 DOI: 10.1007/s12672-021-00427-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Accepted: 08/26/2021] [Indexed: 01/14/2023] Open
Abstract
Previous studies have shown that selenium possessed chemotherapeutic effect against multiple malignant cancers, inducing diverse stress responses including apoptosis and autophagy. Selenite was previously shown to induce apoptosis and autophagy in colorectal cancer cells. However, the relationship between selenite-induced apoptosis and autophagy was not fully understood. Our results revealed a pro-survival role of selenite-induced autophagy against apoptosis in colorectal cancer cells. Real-time PCR array of autophagy-related genes showed that GABARAPL-1 was significantly upregulated in colorectal cancer cells, which was confirmed by western blot and immunofluorescence results. Knockdown of GABARAPL-1 significantly inhibited selenite-induced autophagy and enhanced apoptosis. Furthermore, we found that selenite-induced upregulation of GABARAPL-1 was caused by upregulated p-AMPK and FoxO3a level. Their interaction was correlated with involved in regulation of GABARAPL-1. We observed that activation and inhibition of AMPK influenced both autophagy and apoptosis level via FoxO3a/ GABARAPL-1 signaling, implying the pro-survival role of autophagy against apoptosis. Importantly, we corroborated these findings in a colorectal cancer xenograft animal model with immunohistochemistry and western blot results. Collectively, these results show that sodium selenite could induce ROS/AMPK/FoxO3a/GABARAPL-1-mediated autophagy and downregulate apoptosis in both colorectal cancer cells and colon xenograft model. These findings help to explore sodium selenite as a potential anti-cancer drug in clinical practices.
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Affiliation(s)
- Hailing Yu
- Guangdong Provincial Key Laboratory of Biomedical Imaging and Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital, Sun Yat-Sen University, No.52 of Meihua Dong Road, Xiangzhou District, Zhuhai, Guangdong Province, China
| | - Yin Huang
- Department of Cardiology, The Fifth Affiliated Hospital, Sun Yat-Sen University, Zhuhai, Guangdong Province, China
| | - Yanming Ge
- Department of Pharmacy, The Fifth Affiliated Hospital, Sun Yat-Sen University, Zhuhai, Guangdong Province, China
| | - Xiaopeng Hong
- Department of Hepatobiliary Surgery, The Fifth Affiliated Hospital, Sun Yat-Sen University, Zhuhai, Guangdong Province, China
| | - Xi Lin
- Guangdong Provincial Key Laboratory of Biomedical Imaging and Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital, Sun Yat-Sen University, No.52 of Meihua Dong Road, Xiangzhou District, Zhuhai, Guangdong Province, China
| | - Kexin Tang
- Guangdong Provincial Key Laboratory of Biomedical Imaging and Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital, Sun Yat-Sen University, No.52 of Meihua Dong Road, Xiangzhou District, Zhuhai, Guangdong Province, China
| | - Qiang Wang
- The Green Aerotechnics Research Institute of Chongqing Jiaotong University, Chongqing, China
| | - Yang Yang
- Institute of Basic Medical Sciences, Peking Union Medical College, Beijing, China
| | - Weiming Sun
- Guangdong Provincial Key Laboratory of Biomedical Imaging and Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital, Sun Yat-Sen University, No.52 of Meihua Dong Road, Xiangzhou District, Zhuhai, Guangdong Province, China
| | - Yongquan Huang
- Department of Ultrasound, The Fifth Affiliated Hospital, Sun Yat-Sen University, No.52 of Meihua Dong Road, Xiangzhou District, Zhuhai, Guangdong Province, China.
| | - Hui Luo
- Guangdong Provincial Key Laboratory of Biomedical Imaging and Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital, Sun Yat-Sen University, No.52 of Meihua Dong Road, Xiangzhou District, Zhuhai, Guangdong Province, China.
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216
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Xing Y, Yang P, Ge J, Yan J, Luo J, Ji H, Yang Z, Li Y, Wang Z, Liu Y, Yang F, Qiu P, Xi C, Tian M, Liu Y, Lin X, Wang J. Extrinsic and Intrinsic Anomalous Metallic States in Transition Metal Dichalcogenide Ising Superconductors. Nano Lett 2021; 21:7486-7494. [PMID: 34460267 DOI: 10.1021/acs.nanolett.1c01426] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The metallic ground state in two-dimensional (2D) superconductors has attracted much attention but is still under intense scrutiny. Especially, the measurements in the ultralow temperature region are challenging for 2D superconductors due to the sensitivity to external perturbations. In this work, the resistance saturation induced by external noise, named as the "extrinsic anomalous metallic state", is observed in 2D transition metal dichalcogenide (TMD) superconductor 4Ha-TaSe2 nanodevices. However, with further decreasing temperature, credible evidence of the intrinsic anomalous metallic state is obtained by adequately filtering external radiation. Our work indicates that, at ultralow temperatures, the anomalous metallic state can be experimentally revealed as the quantum ground state in 2D crystalline TMD superconductors. Besides, Ising superconductivity revealed by ultrahigh in-plane critical field (Bc2∥) going beyond the Pauli paramagnetic limit (Bp) is detected in 4Ha-TaSe2, from the one-unit-cell device to the bulk situation, which might be due to the weak coupling between the TaSe2 submonolayers.
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Affiliation(s)
- Ying Xing
- State Key Laboratory of Heavy Oil Processing, College of New Energy and Materials, China University of Petroleum, Beijing 102249, China
- International Center for Quantum Materials, School of Physics, Peking University, Beijing 100871, China
| | - Pu Yang
- State Key Laboratory of Heavy Oil Processing, College of New Energy and Materials, China University of Petroleum, Beijing 102249, China
- College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Jun Ge
- International Center for Quantum Materials, School of Physics, Peking University, Beijing 100871, China
| | - Jiaojie Yan
- International Center for Quantum Materials, School of Physics, Peking University, Beijing 100871, China
| | - Jiawei Luo
- International Center for Quantum Materials, School of Physics, Peking University, Beijing 100871, China
| | - Haoran Ji
- International Center for Quantum Materials, School of Physics, Peking University, Beijing 100871, China
| | - Zeyan Yang
- State Key Laboratory of Heavy Oil Processing, College of New Energy and Materials, China University of Petroleum, Beijing 102249, China
| | - Yongjie Li
- State Key Laboratory of Heavy Oil Processing, College of New Energy and Materials, China University of Petroleum, Beijing 102249, China
| | - Zijia Wang
- State Key Laboratory of Heavy Oil Processing, College of New Energy and Materials, China University of Petroleum, Beijing 102249, China
| | - Yanzhao Liu
- International Center for Quantum Materials, School of Physics, Peking University, Beijing 100871, China
| | - Feng Yang
- State Key Laboratory of Heavy Oil Processing, College of New Energy and Materials, China University of Petroleum, Beijing 102249, China
| | - Ping Qiu
- State Key Laboratory of Heavy Oil Processing, College of New Energy and Materials, China University of Petroleum, Beijing 102249, China
| | - Chuanying Xi
- High Magnetic Field Laboratory, Chinese Academy of Sciences, Hefei 230031, China
| | - Mingliang Tian
- High Magnetic Field Laboratory, Chinese Academy of Sciences, Hefei 230031, China
| | - Yi Liu
- Department of Physics, Renmin University of China, Beijing 100872, China
| | - Xi Lin
- International Center for Quantum Materials, School of Physics, Peking University, Beijing 100871, China
- CAS Center for Excellence in Topological Quantum Computation, University of Chinese Academy of Sciences, Beijing 100190, China
- Beijing Academy of Quantum Information Sciences, Beijing 100193, China
| | - Jian Wang
- International Center for Quantum Materials, School of Physics, Peking University, Beijing 100871, China
- CAS Center for Excellence in Topological Quantum Computation, University of Chinese Academy of Sciences, Beijing 100190, China
- Beijing Academy of Quantum Information Sciences, Beijing 100193, China
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217
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Liang J, Zhou K, Li Q, Dong X, Zhang P, Liu H, Lin H, Zhang X, Lu J, Lin X, Li K, Xu T, Zhang H, Bao Q, Zhu M, Hu Y, Ren P. Identification and Characterization of a Novel Aminoglycoside 3''-Nucleotidyltransferase, ANT(3'')-IId, From Acinetobacter lwoffii. Front Microbiol 2021; 12:728216. [PMID: 34531844 PMCID: PMC8438517 DOI: 10.3389/fmicb.2021.728216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Accepted: 08/06/2021] [Indexed: 11/19/2022] Open
Abstract
A novel plasmid-encoded aminoglycoside 3''-nucleotidyltransferase ANT(3")-IId, was discovered in Acinetobacter lwoffi strain H7 isolated from a chick on an animal farm in Wenzhou, China. The whole-genome of A. lwoffii H7 consisted of one chromosome and five plasmids (pH7-250, pH7-108, pH7-68, pH7-48, and pH7-11). ant(3")-IId was identified as being encoded on pH7-250, sharing the highest amino acid identity of 50.64% with a function-known resistance gene, ant(3")-IIb (KB849358.1). Susceptibility testing and enzyme kinetic parameter analysis were conducted to determine the function of the aminoglycoside 3"-nucleotidyltransferase. The ant(3")-IId gene conferred resistance to spectinomycin and streptomycin [the minimum inhibitory concentration (MIC) levels of both increased 16-fold compared with the control strain]. Consistent with the MIC data, kinetic analysis revealed a narrow substrate profile including spectinomycin and streptomycin, with Kcat/Km ratios of 4.99 and 4.45×103M−1 S−1, respectively. Sequencing analysis revealed that the ant(3")-IId gene was associated with insertion sequences (IS) element [ΔISAba14-ΔISAba14-hp-orf-orf-orf1-ant(3")-IId], and ant(3")-IId were identified in plasmids from various Acinetobacter species. This study of the novel aminoglycoside 3"-nucleotidyltranferase ANT(3")-IId helps us further understand the functional and sequence characteristics of aminoglycoside 3"-nucleotidyltranferases, highlights the risk of resistance gene transfer among Acinetobacter species and suggests that attention should be given to the emergence of new aminoglycoside 3"-nucleotidyltranferase genes.
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Affiliation(s)
- Jialei Liang
- The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, China.,Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China
| | - Kexin Zhou
- Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China.,Institute of Biomedical Informatics, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China
| | - Qiaoling Li
- The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, China.,Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China
| | - Xu Dong
- Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China.,Institute of Biomedical Informatics, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China
| | - Peiyao Zhang
- Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China.,Institute of Biomedical Informatics, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China
| | - Hongmao Liu
- The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, China.,Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China
| | - Hailong Lin
- The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, China.,Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China
| | - Xueya Zhang
- The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, China.,Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China
| | - Junwan Lu
- Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China.,Institute of Biomedical Informatics, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China
| | - Xi Lin
- Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China.,Institute of Biomedical Informatics, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China
| | - Kewei Li
- Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China.,Institute of Biomedical Informatics, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China
| | - Teng Xu
- Institute of Translational Medicine, Baotou Central Hospital, Baotou, China
| | - Hailin Zhang
- The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, China.,Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China
| | - Qiyu Bao
- Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China.,Institute of Biomedical Informatics, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China
| | - Mei Zhu
- Department of Clinical Laboratory, Zhejiang Hospital, Hangzhou, China
| | - Yunliang Hu
- The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, China.,Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China
| | - Ping Ren
- Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China.,Institute of Biomedical Informatics, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China
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218
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Abstract
PURPOSE The aim of the present study was to evaluate the clinical feasibility of the socket shield technique (SST). STUDY SELECTION An electronic search of the PubMed, Cochrane Central Register of Controlled Trials, and Wiley Online Library databases, and a manual reference search for articles published up to September 2020 was conducted. Meta-analysis was performed to estimate marginal bone loss (MBL), changes in buccal bone width (cBBW), pink esthetic score (PES), implant stability quotient (ISQ), implant failure rate, and complication rate between SST and conventional immediate implant placement (IIP). All pooled analyses were based on random effects models. RESULTS Sixteen relevant studies were ultimately selected by two independent reviewers: four randomized clinical trials (RCTs), four case-control studies, and eight retrospective studies. Meta-analysis revealed a trend toward lower MBL and cBBW and higher PES in the SST group. ISQ, implant failure rate, and complication rate were similar between the groups. CONCLUSIONS The included studies provided evidence that SST may be a feasible treatment option. However, this technique should not be used as a routine clinical protocol due to the lack of evidence-based consensus guidelines, large-scale RCTs, and long-term follow-up data. Therefore, there is an urgent need for well-conducted RCTs in this field.
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Affiliation(s)
- Xi Lin
- Affiliated Implantology center, Stomatological Hospital, Southern Medical University, Guangzhou, People's Republic of China
| | - Yan Gao
- Affiliated Implantology center, Stomatological Hospital, Southern Medical University, Guangzhou, People's Republic of China
| | - Xianglong Ding
- Affiliated Implantology center, Stomatological Hospital, Southern Medical University, Guangzhou, People's Republic of China
| | - Xianghuai Zheng
- Affiliated Implantology center, Stomatological Hospital, Southern Medical University, Guangzhou, People's Republic of China
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Zhen Q, Zhang Y, Yu Y, Yang H, Zhang T, Li X, Mo X, Li B, Wu J, Liang Y, Ge H, Xu Q, Chen W, Qian W, Xu H, Chen G, Bai B, Zhang J, Lu Y, Chen S, Zhang H, Zhang Y, Chen X, Li X, Jin X, Lin X, Yong L, Fang M, Zhao J, Lu Y, Wu S, Jiang D, Shi J, Cao H, Qiu Y, Li S, Kang X, Shen J, Ma H, Sun S, Fan Y, Chen W, Bai M, Jiang Q, Li W, Lv C, Li S, Chen M, Li F, Li Y, Sun L. Three Novel Structural Variations at MHC and IL12B Predisposing to Psoriasis. Br J Dermatol 2021; 186:307-317. [PMID: 34498260 DOI: 10.1111/bjd.20752] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/07/2021] [Indexed: 11/29/2022]
Abstract
BACKGROUND Structural variations (SVs, defined as DNA variants ≥50 bp) have been associated with various complex human diseases. However, research to screen the whole genome for SVs predisposing to psoriasis is still lacking. OBJECTIVES This study aimed to investigate the association of SVs and psoriasis. METHODS We performed a genome-wide screen on SVs using an imputation method on 5 independent cohorts with 45,386 subjects from the Chinese Han population. Fine mapping analysis, genetic interaction analysis and RNA expression analysis were conducted to explore the mechanism of SVs. RESULTS We obtained 4,535 SVs in total and identified 2 novel deletions (esv3608550, OR=2.73, P<2.00×10-308 ; esv3608542, OR=0.47, P=7.40×10-28 ) at 6q21.33 (MHC), 1 novel Alu element insertion (esv3607339, OR=1.22, P=1.18×10-35 ) at 5q33.3 (IL12B), and confirmed 1 previously reported deletion (esv3587563, OR=1.30, P=9.52×10-60 ) at 1q21.2 (LCE) for psoriasis. Fine mapping analysis including SNPs and small Insertions/Deletions (InDels) revealed that esv3608550 and esv3608542 were independently associated with psoriasis, and a novel independent SNP (rs9378188, OR=1.65, P=3.46×10-38 ) was identified at 6q21.33. By genetic interaction analysis and RNA expression analysis, we speculate that the association of 2 deletions at 6q21.33 with psoriasis might relate to their influence on the expression of HLA-C. CONCLUSIONS Our study constructed the most comprehensive SV map for psoriasis thus far and enriched the genetic architecture and pathogenesis of psoriasis as well as highlighted the nonnegligible impact of SVs on complex diseases.
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Affiliation(s)
- Q Zhen
- Department of Dermatology, the First Affiliated Hospital of Anhui Medical University, Hefei, China.,Key Laboratory of Dermatology (Anhui Medical University), Ministry of Education, Hefei, China.,Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Hefei, China, 230032.,Anhui Provincial Institute of Translational Medicine, Hefei, 230032, China
| | - Y Zhang
- Department of Dermatology, the First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Y Yu
- Department of Dermatology, the First Affiliated Hospital of Anhui Medical University, Hefei, China.,Key Laboratory of Dermatology (Anhui Medical University), Ministry of Education, Hefei, China.,Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Hefei, China, 230032.,Anhui Provincial Institute of Translational Medicine, Hefei, 230032, China
| | - H Yang
- Department of Dermatology, the First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - T Zhang
- Department of Biology, University of Copenhagen, Ole MaalØes Vej 5, 2200, Copenhagen, Denmark
| | - X Li
- Department of Dermatology, the First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - X Mo
- Department of Dermatology, the First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - B Li
- Department of Dermatology, the First Affiliated Hospital of Anhui Medical University, Hefei, China.,The Comprehensive Lab, College of Basic, Anhui Medical University
| | - J Wu
- Department of Dermatology, Huangshi Central Hospital, Affiliated Hospital of Hubei Polytechnic University
| | - Y Liang
- Department of Dermatology, the First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - H Ge
- Department of Dermatology, the First Affiliated Hospital of Anhui Medical University, Hefei, China.,Key Laboratory of Dermatology (Anhui Medical University), Ministry of Education, Hefei, China.,Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Hefei, China, 230032.,Anhui Provincial Institute of Translational Medicine, Hefei, 230032, China
| | - Q Xu
- Department of Dermatology, the First Affiliated Hospital of Anhui Medical University, Hefei, China.,Key Laboratory of Dermatology (Anhui Medical University), Ministry of Education, Hefei, China.,Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Hefei, China, 230032.,Anhui Provincial Institute of Translational Medicine, Hefei, 230032, China
| | - W Chen
- Department of Dermatology, the First Affiliated Hospital of Anhui Medical University, Hefei, China.,Key Laboratory of Dermatology (Anhui Medical University), Ministry of Education, Hefei, China.,Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Hefei, China, 230032.,Anhui Provincial Institute of Translational Medicine, Hefei, 230032, China
| | - W Qian
- Institute of Dermalology, Guangzhou Medical University, Guangzhou, 510095, China
| | - H Xu
- Department of Dermatology, the First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - G Chen
- Department of Dermatology, the First Affiliated Hospital of Anhui Medical University, Hefei, China.,Key Laboratory of Dermatology (Anhui Medical University), Ministry of Education, Hefei, China.,Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Hefei, China, 230032.,Anhui Provincial Institute of Translational Medicine, Hefei, 230032, China
| | - B Bai
- Department of Dermatology at No.2 Hospital, Harbin Medical University, Harbin, Heilongjiang, 150001, China
| | - J Zhang
- Department of Dermatology, The 195 Hospital of Chinese People's Liberation Army, Xianning, Hubei, 437100, China
| | - Y Lu
- Dermatology Department of the First Affiliated Hospital, Nanjng Medical University, Nanjing, Jiangsu, 210029, China
| | - S Chen
- Department of Dermatology, the First Affiliated Hospital of Anhui Medical University, Hefei, China.,Key Laboratory of Dermatology (Anhui Medical University), Ministry of Education, Hefei, China.,Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Hefei, China, 230032.,Anhui Provincial Institute of Translational Medicine, Hefei, 230032, China
| | - H Zhang
- Department of Dermatology, the First Affiliated Hospital of Anhui Medical University, Hefei, China.,Key Laboratory of Dermatology (Anhui Medical University), Ministry of Education, Hefei, China.,Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Hefei, China, 230032.,Anhui Provincial Institute of Translational Medicine, Hefei, 230032, China
| | - Y Zhang
- Department of Dermatology, the First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - X Chen
- Department of Dermatology at Chengdu Second People's Hospital, Sichuan, Chengdu, 610017, China
| | - X Li
- Department of Dermatology, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 200437, China
| | - X Jin
- School of Medicine, South China University of Technology, Guangzhou, 510006, Guangdong, China
| | - X Lin
- Department of Neurology and Institute of Neurology, The First Affiliated Hospital of Fujian Medical University, 20 Chazhong Road, Fuzhou, 350005, China
| | - L Yong
- Department of Dermatology, the First Affiliated Hospital of Anhui Medical University, Hefei, China.,Key Laboratory of Dermatology (Anhui Medical University), Ministry of Education, Hefei, China.,Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Hefei, China, 230032.,Anhui Provincial Institute of Translational Medicine, Hefei, 230032, China
| | - M Fang
- Key Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture, Fisheries College, Jimei University, Xiamen, Fujian, 361021, China
| | - J Zhao
- Department of Dermatology, People's Hospital of Xinjiang Uygur Autonomous Region, Xinjiang, Urumqi, 830001, China
| | - Y Lu
- Department of Dermatology at Chengdu Second People's Hospital, Sichuan, Chengdu, 610017, China
| | - S Wu
- Urology Institute of Shenzhen University, The Luohu Affiliated Hospital of Shenzhen University
| | - D Jiang
- Key Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture, Fisheries College, Jimei University, Xiamen, Fujian, 361021, China
| | - J Shi
- Department of Dermatology at the Second Affiliated Hospital, Baotou Medical College, University Of Science and Technology Of The Inner Mongolia, Baotou, Inner Mongolia, 014030, China
| | - H Cao
- Department of Dermatology, the First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Y Qiu
- Department of Dermatology, Jining No. 1 People's Hospital, Shandong, 272011, China
| | - S Li
- Department of Dermatology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China
| | - X Kang
- Department of Dermatology, People's Hospital of Xinjiang Uygur Autonomous Region, Xinjiang, Urumqi, 830001, China
| | - J Shen
- Department of Dermatology, the First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - H Ma
- Department of Dematology, the 2rd Hospital of Xi'an Jiaotong University. Xi'an, Shanxi, 710004, China
| | - S Sun
- Department of Dermatology, the First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Y Fan
- Department of Dermatology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China
| | - W Chen
- Department of Neurology and Institute of Neurology, The First Affiliated Hospital of Fujian Medical University, 20 Chazhong Road, Fuzhou, 350005, China
| | - M Bai
- Department of Dermatology, the First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Q Jiang
- Donggang Center Hospital, Dandong, Liaoning, 118300
| | - W Li
- Collaborative Innovation Center for Birth Defect Research and Transformation of Shandong Province, Jining Medical University, Jining, Shandong, 272067, China
| | - C Lv
- Dalian Dermatosis Hospital, Dalian, Liaoning, 116021, China
| | - S Li
- Department of Dermatology at No, Hospital of Jilin University, Changchun, Jilin, 130021, China
| | - M Chen
- Dermatology Hospital, Peking Union Medical College
| | - F Li
- Department of Dermatology, The Second Hospital of Jilin University, Changchun, 130041, China
| | - Y Li
- Department of Dermatology, The 195 Hospital of Chinese People's Liberation Army, Xianning, Hubei, 437100, China
| | - L Sun
- Department of Dermatology, the First Affiliated Hospital of Anhui Medical University, Hefei, China.,Key Laboratory of Dermatology (Anhui Medical University), Ministry of Education, Hefei, China.,Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Hefei, China, 230032.,Anhui Provincial Institute of Translational Medicine, Hefei, 230032, China
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Cui HM, Lin X, Liu YY, Shen YH. Comparison of different colistin regimens for the treatment of pneumonia caused by multidrug-resistant microorganisms: a systematic review and meta-analysis. Eur Rev Med Pharmacol Sci 2021; 25:5275-5292. [PMID: 34486704 DOI: 10.26355/eurrev_202108_26549] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE Multidrug-resistant pneumonia is a common cause of hospital-related morbidity and mortality across the world. The high prevalence of multidrug-resistant pneumonia due to resistant gram-negative pathogens has led to a re-introduction of colistin. The adverse events associated with intravenous colistin can be alleviated by administering the drug nasally (i.e., inhalation) or in a combination including both inhalation and intravenous presentations of the drug. A review study compared the impact of these administration methods on clinical, morbidity, and mortality-related outcomes in patients with multiple-drug resistant pneumonia. However, the publication of newer cohort trials, warrants an update of the state of the evidence. To compare the clinical, morbidity, and mortality outcomes in patients with multidrug-resistant pneumonia receiving either intravenous colistin or combined drug presentations (ie, inhaled and intravenous). MATERIALS AND METHODS A systematic search of the academic literature was performed according to the PRISMA guidelines across five databases (Web of Science, EMBASE, CENTRAL, Scopus, and MEDLINE). We conducted a random-effect meta-analysis to compare outcomes such as rate of clinical cure, microbiological eradication, nephrotoxicity, and overall mortality in patients with multidrug-resistant pneumonia receiving either intravenous colistin, inhaled colistin, or a combination of those administration routes. RESULTS From 963 studies, we found 16 eligible studies with 1651 patients (61.6 ± 7.7 years) with multidrug-resistant pneumonia who had received either intravenous, inhaled colistin or a combined inhaled/intravenous administration. Our meta-analysis revealed higher rates of clinical cure (OR, 1.61) and microbiological eradication (1.37) in patients receiving combined intravenous/inhaled colistin than in those receiving intravenous colistin alone. Additional analyses revealed higher rates of nephrotoxicity (1.30) and mortality (1.44) in patients receiving intravenous colistin than in those receiving combined intravenous/inhaled colistin. CONCLUSIONS We provide evidence showing improved clinical, morbidity, and mortality outcomes in patients with multidrug-resistant pneumonia receiving inhaled colistin or combined inhaled/intravenous colistin than those receiving intravenous colistin alone. These findings should help clinicians stratify the risks associated with different colistin administration routes to manage multidrug-resistant pneumonia.
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Affiliation(s)
- H-M Cui
- Department of Hospital Infection Management, Huzhou Traditional Chinese Medicine Hospital Affiliated to Zhejiang Chinese Medical University, Zhejiang Province, P.R. China.
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Zhou C, Xie X, Wu J, Guo B, Qin Y, Lin X, Liu M, Qiu L, Xiang J, Chen Z, Zou X. 1273P Sputum supernatant as a viable liquid biopsy in advanced non-small cell lung cancer. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.08.1875] [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: 11/17/2022] Open
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222
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Yu X, Wang J, Lu S, Zhao J, Yu Y, Hu C, Feng G, Ying K, Zhuang W, Zhou J, Wu J, Leaw S, Lin X, Zhang J. 1297P RATIONALE 307: Tislelizumab (TIS) plus chemotherapy (chemo) vs chemo alone as first-line (1L) treatment for advanced squamous non-small cell lung cancer (sq NSCLC) in patients (pts) who were smokers vs non-smokers. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.08.1899] [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: 11/24/2022] Open
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223
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Zhang D, Bai C, Zhang J, Zhang Y, Liu T, Pan H, Zhong H, Lin X, Qiu WS, Liu Y, Yuan X, Zhang T, Yin X, Deng Y, Hu X, Xu R. 511TiP A phase III, multicenter, open-label, randomized study to assess the efficacy and safety of cetuximab plus capecitabine versus cetuximab as maintenance treatment following first-line induction treatment with FOLFOX and cetuximab in Chinese patients with RAS and BRAF WT mCRC. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.08.1030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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224
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Chen X, Hu C, Wang W, Zou Q, Li J, Lin Q, Zhu X, Jiang Y, Sun Y, Shen L, Wang L, Zou G, Lin X, Wang Y, Lin S, Li M, Ao R, Xu R, Lin H, Wang R. 909P A phase II study of the anti-programmed cell death-1 (PD-1) antibody penpulimab in patients with metastatic nasopharyngeal carcinoma (NPC) who had progressed after two or more lines of chemotherapy: Updated results. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.08.1319] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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225
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Ding X, Xu S, Li S, Guo Z, Lu H, Lai C, Wu J, Wang J, Zeng S, Lin X, Zhou L. Retraction of "Biological Effects of Titanium Surface Charge with a Focus on Protein Adsorption". ACS Omega 2021; 6:22467. [PMID: 34497939 PMCID: PMC8412960 DOI: 10.1021/acsomega.1c02604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 05/08/2021] [Indexed: 06/13/2023]
Abstract
[This retracts the article DOI: 10.1021/acsomega.0c02518.].
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226
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Lin X, Xu F. Crystal structure of the first orphan GPCR. Acta Crystallogr A Found Adv 2021. [DOI: 10.1107/s0108767321092576] [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: 11/10/2022] Open
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227
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Lin X, Zhao Y, Ahmad M, Ahmed Z, Rjoub H, Adebayo TS. Linking Innovative Human Capital, Economic Growth, and CO 2 Emissions: An Empirical Study Based on Chinese Provincial Panel Data. Int J Environ Res Public Health 2021; 18:ijerph18168503. [PMID: 34444252 PMCID: PMC8391553 DOI: 10.3390/ijerph18168503] [Citation(s) in RCA: 48] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Revised: 08/03/2021] [Accepted: 08/09/2021] [Indexed: 11/26/2022]
Abstract
To study the economic and environmental effects of human capital, previous studies measure human capital based on education; however, this approach has many shortcomings because not all educated people are innovative human capital. Hence, this study introduces the concept of innovative human capital by developing a new index that measures human capital based on the number of patents every one million R&D staff full-time equivalent. After this, this paper studies the impact of innovative human capital on CO2 emissions in China. The provincial panel data of 30 Chinese provinces from 2003 to 2017 is analyzed using the fixed effect, ordinary least squares, and the system generalized method of moments (SYS-GMM). The analysis revealed that innovative human capital alleviates environmental deterioration in China. The findings unfold the existence of the environmental Kuznets curve (EKC) considering innovative human capital in the model. It implies that Chinese economic development will eventually support environmental sustainability if China continues to develop its innovative human capital. Among the control variables, economic structure, population density, and energy intensity stimulate environmental degradation by increasing CO2 emissions. However, FDI has a negative relationship with CO2 emissions. Lastly, the study proposes comprehensive policies to increase innovative human capital for environmental sustainability.
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Affiliation(s)
- Xi Lin
- Business School, Hohai University, Nanjing 211100, China;
- Business School, Guilin University of Technology, Guilin 541004, China
- Correspondence: (X.L.); (T.S.A.)
| | - Yongle Zhao
- Business School, Hohai University, Nanjing 211100, China;
| | - Mahmood Ahmad
- Business School, Shandong University of Technology, Zibo 255000, China;
| | - Zahoor Ahmed
- Department of Economics, Faculty of Economics and Administrative Sciences, Cyprus International University, Mersin 10, Haspolat 99040, Turkey;
| | - Husam Rjoub
- Department of Accounting and Finance, Faculty of Economics and Administrative Sciences, Cyprus International University, Mersin 10, Haspolat 99040, Turkey;
| | - Tomiwa Sunday Adebayo
- Department of Business Administration, Faculty of Economics and Administrative Science, Cyprus International University, Nicosia, Northern Cyprus, Mersin TR-10, Turkey
- Correspondence: (X.L.); (T.S.A.)
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Sun A, Lin X, Xue Z, Huang J, Bai X, Huang L, Lin X, Weng S, Chen M. Facile surface functional polyetheretherketone with antibacterial and immunoregulatory activities for enhanced regeneration toward bacterium-infected bone destruction. Drug Deliv 2021; 28:1649-1663. [PMID: 34338560 PMCID: PMC8330770 DOI: 10.1080/10717544.2021.1960924] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Existing biologically inert or unmodified implants to treat infectious bone defects or osteomyelitis still cannot effectively solve bacterial infection and osseointegration. In this work, a simple co-deposition strategy was developed to modify porous polyetheretherketone (PEEK) with improved antibacterial activity and controllable immunoregulatory ability. After PEEK was treated by H2SO4 to obtain porous PEEK (SPEEK), the self-polymerization of dopamine was operated on SPEEK in the solution of dopamine and gentamicin sulfate (GS) to prepare polydopamine (pDA) and GS layer-modified SPEEK (labeled as SPEEK–pDA–GS). The morphology, surface property, and molecular structure of SPEEK–pDA–GS were investigated. Besides the antibacterial property of SPEEK–pDA–GS ascribed to the successful immobilization of GS, SPEEK–pDA–GS exhibited promoted osseointegration through the results of mineralization, alkaline phosphatase (ALP) levels and osteogenic gene expression. Furthermore, the evaluation of the cell proliferation suggested that SPEEK–pDA–GS possessed the biocompatibility and the immunoregulatory ability that induced macrophages to anti-inflammatory M2 phenotype. Using rat as model, in vivo results containing X-ray, μ-CT, immunohistochemistry, and pathological analysis showed the excellent healing effect of SPEEK–pDA–GS on bone defect with infection with biological safety. This work illustrates a new insight into the simple and effective modification of PEEK and other implants with antibacterial, immunoregulatory, and osseointegration abilities for clinical requirement.
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Affiliation(s)
- An'an Sun
- Department of Orthopedic Surgery, Fujian Medical University Union Hospital, Fuzhou, China
| | - Xi Lin
- Department of Emergency Surgery, Center for Trauma Medicine, The First Affiliated Hospital of Fujian Medical University, Fuzhou, China
| | - Zhiqiang Xue
- Department of Orthopedic Surgery, Fujian Medical University Union Hospital, Fuzhou, China
| | - Jiyue Huang
- Department of Orthopedic Surgery, Fujian Medical University Union Hospital, Fuzhou, China
| | - Xinxin Bai
- Department of Orthopedic Surgery, Fujian Medical University Union Hospital, Fuzhou, China
| | - Lingling Huang
- Department of Stomatology, The First Affiliated Hospital of Fujian Medical University, Fuzhou, China
| | - Xinhua Lin
- Department of Pharmaceutical Analysis, School of Pharmacy, Higher Educational Key Laboratory for Nano Biomedical Technology of Fujian Province, Fujian Medical University, Fuzhou, China
| | - Shaohuang Weng
- Department of Pharmaceutical Analysis, School of Pharmacy, Higher Educational Key Laboratory for Nano Biomedical Technology of Fujian Province, Fujian Medical University, Fuzhou, China
| | - Min Chen
- Department of Orthopedic Surgery, Fujian Medical University Union Hospital, Fuzhou, China
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Zhan X, Liang D, Lin X, Li L, Wei C, Dingle C, Liu Y. Background noise but not urbanization level impacted song frequencies in an urban songbird in the Pearl River Delta, Southern China. Glob Ecol Conserv 2021. [DOI: 10.1016/j.gecco.2021.e01695] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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Lin X, Wang W, McDavid A, Xu H, Boyce BF, Xing L. The E3 ubiquitin ligase Itch limits the progression of post-traumatic osteoarthritis in mice by inhibiting macrophage polarization. Osteoarthritis Cartilage 2021; 29:1225-1236. [PMID: 33940137 PMCID: PMC8319075 DOI: 10.1016/j.joca.2021.04.009] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Revised: 04/09/2021] [Accepted: 04/21/2021] [Indexed: 02/02/2023]
Abstract
OBJECTIVE Osteoarthritis (OA) is characterized by articular cartilage loss, associated with synovial inflammation. We recently reported increased pro-inflammatory macrophages in murine post-traumatic OA (PTOA) joints, and blockade of the ubiquitin-proteasome system alleviates PTOA progression. However, the mechanisms whereby protein ubiquitination influences PTOA pathology are not well studied. We hypothesized that loss of the negative regulator of inflammation, E3 ligase Itch, in macrophages contributes to joint OA tissue damage by promoting pro-inflammatory polarization of macrophages. METHODS Mice deficient Itch in macrophages (MΔItch) were generated by crossing Itchfl/fl mice with LysM-Cre mice. PTOA surgery was performed on global Itch knockout, Itch-/-, mice and MΔItch mice. Joint tissue damage and synovial macrophages were examined. Itch-/- cells were treated with IL-1 and pro-inflammatory polarization was determined. Expression of Itch protein and mRNA in PTOA synovium were assessed at different time points post PTOA. RESULTS Similar to Itch-/- mice, MΔItch mice developed more severe joint damage than control mice following PTOA surgery (mean difference of OARSI score: 1.17 (95% CI 0.31-2.03) between MΔItch and Itchfl/fl mice), accompanied by increased the inflammatory macrophage infiltration in the synovium (mean difference of % F4/80 + CD86 + CD36-inflammatory macrophages: 14.81 (95% CI 8.90-20.73) between MΔItch and Itchfl/fl mice). Itch-/- macrophages exerted pro-inflammatory phenotype in response to IL-1β treatment. Itch protein, but not mRNA levels decreased during PTOA progression. CONCLUSION The negative regulator of inflammation, Itch, limits PTOA progression by inhibiting macrophage pro-inflammatory polarization. Itch protein degradation may contribute to PTOA pathology.
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Affiliation(s)
- X Lin
- Department of Pathology and Laboratory Medicine, University of Rochester Medical Center, Rochester, NY, 14642, USA
| | - W Wang
- Department of Pathology and Laboratory Medicine, University of Rochester Medical Center, Rochester, NY, 14642, USA
| | - A McDavid
- Department of Biostatistics and Computational Biology, University of Rochester Medical Center, Rochester, NY, 14642, USA
| | - H Xu
- Department of Pathology and Laboratory Medicine, University of Rochester Medical Center, Rochester, NY, 14642, USA
| | - B F Boyce
- Department of Pathology and Laboratory Medicine, University of Rochester Medical Center, Rochester, NY, 14642, USA; Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, NY, 14642, USA
| | - L Xing
- Department of Pathology and Laboratory Medicine, University of Rochester Medical Center, Rochester, NY, 14642, USA; Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, NY, 14642, USA.
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Lu W, Li K, Huang J, Sun Z, Li A, Liu H, Zhou D, Lin H, Zhang X, Li Q, Lu J, Lin X, Li P, Zhang H, Xu T, Bao Q. Identification and characteristics of a novel aminoglycoside phosphotransferase, APH(3')-IId, from an MDR clinical isolate of Brucella intermedia. J Antimicrob Chemother 2021; 76:2787-2794. [PMID: 34329431 DOI: 10.1093/jac/dkab272] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2021] [Accepted: 07/05/2021] [Indexed: 11/13/2022] Open
Abstract
OBJECTIVES To describe a novel chromosomal aminoglycoside phosphotransferase named APH(3')-IId identified in an MDR Brucella intermedia ZJ499 isolate from a cancer patient. METHODS Species identity was determined by PCR and MALDI-TOF MS analysis. WGS was performed to determine the genetic elements conferring antimicrobial resistance. Gene cloning, transcriptional analysis and targeted gene deletion, as well as protein purification and kinetic analysis, were performed to investigate the mechanism of resistance. RESULTS APH(3')-IId consists of 266 amino acids and shares the highest identity (48.25%) with the previously known APH(3')-IIb. Expression of aph(3')-IId in Escherichia coli decreased susceptibility to kanamycin, neomycin, paromomycin and ribostamycin. The aph(3')-IId gene in ZJ499 was transcriptionally active under laboratory conditions and the relative abundance of this transcript was unaffected by treatment with the above four antibiotics. However, deletion of aph(3')-IId in ZJ499 results in decreased MICs of these drugs. The purified APH(3')-IId showed phosphotransferase activity against kanamycin, neomycin, paromomycin and ribostamycin, with catalytic efficiencies (kcat/Km) ranging from ∼105 to 107 M-1 s-1. Genetic environment and comparative genomic analyses suggested that aph(3')-IId is probably a ubiquitous gene in Brucella, with no mobile genetic elements detected in its surrounding region. CONCLUSIONS APH(3')-IId is a novel chromosomal aminoglycoside phosphotransferase and plays an important role in the resistance of B. intermedia ZJ499 to kanamycin, neomycin, paromomycin and ribostamycin. To the best of our knowledge, APH(3')-IId represents the fourth characterized example of an APH(3')-II enzyme.
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Affiliation(s)
- Wei Lu
- Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou 325035, China.,Institute of Biomedical Informatics, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou 325035, China
| | - Kewei Li
- Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou 325035, China.,Institute of Biomedical Informatics, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou 325035, China
| | - Jiansheng Huang
- The Fifth Affiliated Hospital, Wenzhou Medical University, Lishui, Zhejiang 323000, China
| | - Zhewei Sun
- Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou 325035, China.,Institute of Biomedical Informatics, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou 325035, China
| | - Aifang Li
- The Fifth Affiliated Hospital, Wenzhou Medical University, Lishui, Zhejiang 323000, China
| | - Hongmao Liu
- Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou 325035, China.,Institute of Biomedical Informatics, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou 325035, China
| | - Danying Zhou
- Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou 325035, China.,Institute of Biomedical Informatics, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou 325035, China
| | - Hailong Lin
- Institute of Biomedical Informatics, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou 325035, China.,Department of Children's Respiratory Disease, the Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou 325027, China
| | - Xueya Zhang
- Institute of Biomedical Informatics, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou 325035, China.,Department of Children's Respiratory Disease, the Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou 325027, China
| | - Qiaoling Li
- Institute of Biomedical Informatics, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou 325035, China.,Department of Children's Respiratory Disease, the Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou 325027, China
| | - Junwan Lu
- Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou 325035, China.,Institute of Biomedical Informatics, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou 325035, China
| | - Xi Lin
- Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou 325035, China.,Institute of Biomedical Informatics, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou 325035, China
| | - Peizhen Li
- Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou 325035, China.,Institute of Biomedical Informatics, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou 325035, China
| | - Hailin Zhang
- Institute of Biomedical Informatics, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou 325035, China.,Department of Children's Respiratory Disease, the Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou 325027, China
| | - Teng Xu
- Institute of Biomedical Informatics, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou 325035, China.,Institute of Translational Medicine, Baotou Central Hospital, Baotou 014040, China
| | - Qiyu Bao
- Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou 325035, China.,Institute of Biomedical Informatics, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou 325035, China.,Department of Children's Respiratory Disease, the Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou 325027, China
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Sun Z, Zhang X, Zhou D, Zhou K, Li Q, Lin H, Lu W, Liu H, Lu J, Lin X, Li K, Xu T, Zhu M, Bao Q, Zhang H. Identification of Three Clf-Sdr Subfamily Proteins in Staphylococcus warneri, and Comparative Genomics Analysis of a Locus Encoding CWA Proteins in Staphylococcus Species. Front Microbiol 2021; 12:691087. [PMID: 34394031 PMCID: PMC8360574 DOI: 10.3389/fmicb.2021.691087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Accepted: 06/28/2021] [Indexed: 11/13/2022] Open
Abstract
Coagulase-negative Staphylococcus warneri is an opportunistic pathogen that is capable of causing several infections, especially in patients with indwelling medical devices. Here, we determined the complete genome sequence of a clinical S. warneri strain isolated from the blood culture of a 1-year-old nursling patient with acute upper respiratory infection. Genome-wide phylogenetic analysis confirmed the phylogenetic relationships between S. warneri and other Staphylococcus species. Using comparative genomics, we identified three cell wall-anchored (CWA) proteins at the same locus (sdr), named SdrJ, SdrK, and SdrL, on the chromosome sequences of different S. warneri strains. Structural predictions showed that SdrJ/K/L have structural features characteristic of Sdr proteins but exceptionally contained an unusual N-terminal repeat region. However, the C-terminal repetitive (R) region of SdrJ contains a significantly larger proportion of alanine (142/338, 42.01%) than the previously reported SdrI (37.00%). Investigation of the genetic organization revealed that the sdrJ/K/L genes were always followed by one or two glycosyltransferase genes, gtfA and gtfB and were present in an ∼56 kb region bordered by a pair of 8 bp identical direct repeats, named Sw-Sdr. This region was further found to be located on a 160-kb region subtended by a pair of 160-bp direct repeats along with other virulence genes and resistance genes. Sw-Sdr contained a putative integrase that was probably a remnant of a functional integrase. Evidence suggests that Sw-Sdr is improbably an efficient pathogenicity island. A large-scale investigation of Staphylococcus genomes showed that sdr loci were a potential hotspot of insertion sequences (ISs), which could lead to intraspecific diversity at these loci. Our work expanded the repository of Staphylococcus Sdr proteins, and for the first time, we established the connection between sdr loci and phylogenetic relationships and compared the sdr loci in different Staphylococcus species, which provided large insights into the genetic environment of CWA genes in Staphylococcus.
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Affiliation(s)
- Zhewei Sun
- Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China.,The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, China.,School of Laboratory Medicine and Life Sciences, Institute of Biomedical Informatics, Wenzhou Medical University, Wenzhou, China
| | - Xueya Zhang
- Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China.,The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, China.,School of Laboratory Medicine and Life Sciences, Institute of Biomedical Informatics, Wenzhou Medical University, Wenzhou, China
| | - Danying Zhou
- Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China.,School of Laboratory Medicine and Life Sciences, Institute of Biomedical Informatics, Wenzhou Medical University, Wenzhou, China
| | - Kexin Zhou
- Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China.,School of Laboratory Medicine and Life Sciences, Institute of Biomedical Informatics, Wenzhou Medical University, Wenzhou, China
| | - Qiaoling Li
- Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China.,The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, China.,School of Laboratory Medicine and Life Sciences, Institute of Biomedical Informatics, Wenzhou Medical University, Wenzhou, China
| | - Hailong Lin
- Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China.,The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, China.,School of Laboratory Medicine and Life Sciences, Institute of Biomedical Informatics, Wenzhou Medical University, Wenzhou, China
| | - Wei Lu
- Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China.,School of Laboratory Medicine and Life Sciences, Institute of Biomedical Informatics, Wenzhou Medical University, Wenzhou, China
| | - Hongmao Liu
- Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China.,The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, China.,School of Laboratory Medicine and Life Sciences, Institute of Biomedical Informatics, Wenzhou Medical University, Wenzhou, China
| | - Junwan Lu
- Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China.,School of Laboratory Medicine and Life Sciences, Institute of Biomedical Informatics, Wenzhou Medical University, Wenzhou, China
| | - Xi Lin
- Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China.,School of Laboratory Medicine and Life Sciences, Institute of Biomedical Informatics, Wenzhou Medical University, Wenzhou, China
| | - Kewei Li
- Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China.,School of Laboratory Medicine and Life Sciences, Institute of Biomedical Informatics, Wenzhou Medical University, Wenzhou, China
| | - Teng Xu
- Institute of Translational Medicine, Baotou Central Hospital, Baotou, China
| | - Mei Zhu
- Department of Clinical Laboratory, Zhejiang Hospital, Hangzhou, China
| | - Qiyu Bao
- Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China.,School of Laboratory Medicine and Life Sciences, Institute of Biomedical Informatics, Wenzhou Medical University, Wenzhou, China
| | - Hailin Zhang
- The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, China.,School of Laboratory Medicine and Life Sciences, Institute of Biomedical Informatics, Wenzhou Medical University, Wenzhou, China
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234
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Wang XH, Liu T, Lin X, Zhai M, Ji DL, Gao H. [The Ophthalmology-centered medical industry in Suzhou in the Ming and the Qing Dynasties - from the Painting Album of Cityscapes and Business]. Zhonghua Yi Shi Za Zhi 2021; 51:195-200. [PMID: 34645115 DOI: 10.3760/cma.j.cn112155-20210120-00016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
The Painting Album of Cityscapes and Business was finished in the early Qing Dynasty with realism. This painting album described the prosperity in business and everyday life in Suzhou during the late Ming and the early Qing Dynasties. They were drawn and painted retrospectively, ie, the content of the pictures was based on existing paintings handed down. In the painting album, more than ten medical-related elements were specifically depicted, such as traditional Chinese medicine clinics and pharmacies and seven ophthalmology-related elements including one clinic specialized in ophthalmology, two spectacle shops, two people wearing eyeglasses and three blind people. Up to now, no specialized ophthalmology clinics and spectacle shops have been found in earlier literature and paintings. It can be speculated that the Painting Album of Cityscapes and Business is the earliest album of paintings depicting clinics specialized in ophthalmology and spectacle shops in China. This painting album provides important information for the study of the medical industry in Suzhou in the late Ming and the early Qing Dynasties, particularly, in terms of ophthalmology-related diagnosis and treatment.
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Affiliation(s)
- X H Wang
- Eye Hospital of Shandong First Medical University, Jinan 250021, China School of Ophthalmology, Shandong First Medical University, Jinan 250021, China Eye Hospital of Shandong First Medical University Shandong Eye Museum, Jinan 250021, China
| | - T Liu
- Eye Hospital of Shandong First Medical University, Jinan 250021, China Eye Hospital of Shandong First Medical University Shandong Eye Museum, Jinan 250021, China
| | - X Lin
- Affiliated Eye Hospital of Shandong University of Traditional Chinese Medicine, Jinan 250021, China
| | - M Zhai
- Eye Hospital of Shandong First Medical University, Jinan 250021, China Eye Hospital of Shandong First Medical University Shandong Eye Museum, Jinan 250021, China
| | - D L Ji
- Eye Hospital of Shandong First Medical University, Jinan 250021, China Eye Hospital of Shandong First Medical University Shandong Eye Museum, Jinan 250021, China
| | - H Gao
- Eye Hospital of Shandong First Medical University, Jinan 250021, China School of Ophthalmology, Shandong First Medical University, Jinan 250021, China Eye Hospital of Shandong First Medical University Shandong Eye Museum, Jinan 250021, China
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235
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Abstract
Intervertebral disc degeneration (IVDD) is considered to be the fundamental cause of the occurrence and development of lumbar disc herniation (LDH). The degeneration of IVDD is mainly caused by the participation of inflammatory factors. Thus, it is of great significance to analyze the pathogenesis of IVDD, which may guide clinical prevention and treatment of LDH. Our current study aims to identify the role of miR-495-3p in LDH and to further unravel the underlying mechanisms. Results in the current study showed that TNF-α treatment markedly inhibited cell viability of HNPC, increased the IL-1β level, and decreased the mRNA level of miR-495-3p in HNPC in a time-dependent manner. Up-regulation of miR-495-3p promoted cell proliferation and inhibited inflammation and apoptosis in TNF-α-induced HNPCs. To investigate the underlying molecular mechanism through which miR-495-3p regulates TNF-α-induced inflammation and apoptosis in HNPCs, we explored the possible target gene of miR-495-3p. Bioinformatics analysis indicated that IL5RA, which is an important gene for TNF-α-induced HNPC injury, was also a target gene of miR-495-3p. A luciferase reporter assay was applied to test and verify the direct target association between miR-495-3p and IL5RA. The results discovered that down-regulation of miR-495-3p markedly reversed the anti-apoptosis and anti-inflammation of sh-IL5RA. In short, the present study evaluated the roles of miR-495-3p and IL5RA in IVDD development and progression. All the data indicated that miRNA-495-3p may play a protective role via inhibiting inflammation and apoptosis in human nucleus pulposus cells by targeting IL5RA pathway. Therefore, miRNA-495-3p may be a potential agent for LDH, and our study may provide a novel strategy in LDH treatment.
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Affiliation(s)
- Xi Lin
- Department of Emergency Surgery, Center for Trauma Medicine, The First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian Province, China.
| | - Qi Lin
- Department of Pharmacy, Fujian Medical University Union Hospital, Fuzhou, Fujian Province, China
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236
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Zhu P, Wong MKS, Lin X, Chan TF, Wong CKC, Lai KP, Tse WKF. Changes of the intestinal microbiota along the gut of Japanese Eel (Anguilla japonica). Lett Appl Microbiol 2021; 73:529-541. [PMID: 34265084 DOI: 10.1111/lam.13539] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Revised: 06/21/2021] [Accepted: 07/13/2021] [Indexed: 10/20/2022]
Abstract
Fish intestine contains different types of microbiomes, and bacteria are the dominant microbiota in fishes. Studies have identified various core gut bacteria in fishes. However, little is known about the composition and their relative functions of gut microbial community along the intestine. To explore this, the current study investigated the microbial community distribution along the gut in Anguilla japonica. By 16S rRNA gene sequencing, we profiled the gut microbiota in eel along the three regions (anterior intestine (AI), the middle intestine (MI) and the posterior intestine (PI)). Results suggested that the three regions did not have significant differences on the observed species and diversities. The cluster tree analysis showed that the bacteria community in MI was closer to PI than the AI. The dominant bacteria in AI were the Proteobacteria, in which the majority was graduated replaced by Bacteroidetes along the gut to PI region. Through PICRUSt analysis, shifts in the bacterial community along the gut were found to affect the genetic information processing pathways. Higher levels of translation and transcriptional pathway activities were found in MI and PI than in AI. The dominant bacterial species were different among the regions and contributed to various biological functions along the gut.
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Affiliation(s)
- P Zhu
- Guangxi Key Laboratory of Beibu Gulf Marine Biodiversity Conservation, Beibu Gulf University, Qinzhou, Guangxi, PR China
| | - M K-S Wong
- Laboratory of Physiology, Atmosphere and Ocean Research Institute, The University of Tokyo, Kashiwa, Chiba, Japan
| | - X Lin
- School of Life Sciences, Hong Kong Bioinformatics Centre, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - T F Chan
- School of Life Sciences, Hong Kong Bioinformatics Centre, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - C K C Wong
- Department of Biology, Croucher Institute for Environmental Sciences, Hong Kong Branch of the Southern Marine Science and Engineering Guangdong Laboratory (Guanzhou), The Hong Kong Baptist University, Kowloon, Hong Kong
| | - K P Lai
- Guangxi Key Laboratory of Beibu Gulf Marine Biodiversity Conservation, Beibu Gulf University, Qinzhou, Guangxi, PR China.,Department of Biology, Croucher Institute for Environmental Sciences, Hong Kong Branch of the Southern Marine Science and Engineering Guangdong Laboratory (Guanzhou), The Hong Kong Baptist University, Kowloon, Hong Kong.,Guangxi Key Laboratory of Tumor Immunology and Microenvironmental Regulation, Guilin Medical University, Guilin, PR China
| | - W K F Tse
- Center for Promotion of International Education and Research, Faculty of Agriculture, Kyushu University, Fukuoka, Japan
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237
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Abstract
Trends in the development of modern medicine necessitate the efficient delivery of therapeutics to achieve the desired treatment outcomes through precise spatiotemporal accumulation of therapeutics at the disease site. Bioresponsive nanomedicine is a promising platform for this purpose. Dynamic covalent bonds (DCBs) have attracted much attention in studies of the fabrication of bioresponsive nanomedicines with an abundance of combinations of therapeutic modules and carrier function units. DCB-based nanomedicines could be designed to maintain biological friendly synthesis and site-specific release for optimal therapeutic effects, allowing the complex to retain an integrated structure before accumulating at the disease site, but disassembling into individual active components without compromising function in the targeted organs or tissues. In this review, we focus on responsive nanomedicines containing dynamic chemical bonds that can be cleaved by various specific stimuli, enabling achievement of targeted drug release for optimal therapy in various diseases.
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Affiliation(s)
- Xiaoqian Xin
- Clinical Translational Center for Targeted Drug, Department of Pharmacology, School of Medicine, Jinan University, Guangzhou 510632, PR China.
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238
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Dong X, Zhang P, Zhou K, Liang J, Li Q, Zhang X, Zhou D, Lu W, Sun Z, Liu H, Lu J, Lin X, Li K, Xu T, Zhang H, Zhu M, Bao Q. Characterization and identification of SFDC-1, a novel AmpC-type β-lactamase in Serratia fonticola. Environ Microbiol 2021; 23:7512-7522. [PMID: 34227210 DOI: 10.1111/1462-2920.15663] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Revised: 07/02/2021] [Accepted: 07/03/2021] [Indexed: 12/01/2022]
Abstract
The clinical and environmental infections caused by AmpC β-lactamases have been increasingly reported recently. In this study, we characterize the novel chromosome-encoded AmpC β-lactamase SFDC-1 identified in Serratia fonticola strain R28, which was isolated from a rabbit raised on a farm in southern China. SFDC-1 shared the highest amino acid identity of 79.6% with the functionally characterized AmpC β-lactamase gene blaYRC-1 , although it had highly homologous functionally uncharacterized relatives in the same species from different sources, including some of the clinical significance. The cloned blaSFDC-1 exhibited resistance to a broad spectrum of β-lactam antibiotics, including most cephalosporins with the highest resistance to ampicillin, cefazolin and ceftazidime, with increased MIC levels ≥128-fold compared with the control strains. The purified SFDC-1 showed catalytic activities against β-lactams with the highest catalytic activity to cefazolin. The genetic context of blaSFDC-1 and its relatives was conserved in the chromosome, and no mobile genetic elements were found surrounding them.
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Affiliation(s)
- Xu Dong
- The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, 325027, China.,Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education, China, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, 325035, China.,Institute of Biomedical Informatics, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, 325035, China
| | - Peiyao Zhang
- Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education, China, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, 325035, China.,Institute of Biomedical Informatics, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, 325035, China
| | - Kexin Zhou
- Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education, China, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, 325035, China.,Institute of Biomedical Informatics, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, 325035, China
| | - Jialei Liang
- The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, 325027, China.,Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education, China, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, 325035, China.,Institute of Biomedical Informatics, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, 325035, China
| | - Qiaoling Li
- The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, 325027, China.,Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education, China, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, 325035, China.,Institute of Biomedical Informatics, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, 325035, China
| | - Xueya Zhang
- The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, 325027, China.,Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education, China, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, 325035, China.,Institute of Biomedical Informatics, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, 325035, China
| | - Danying Zhou
- Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education, China, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, 325035, China.,Institute of Biomedical Informatics, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, 325035, China
| | - Wei Lu
- Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education, China, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, 325035, China.,Institute of Biomedical Informatics, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, 325035, China
| | - Zhewei Sun
- Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education, China, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, 325035, China.,Institute of Biomedical Informatics, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, 325035, China
| | - Hongmao Liu
- The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, 325027, China.,Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education, China, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, 325035, China.,Institute of Biomedical Informatics, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, 325035, China
| | - Junwan Lu
- Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education, China, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, 325035, China.,Institute of Biomedical Informatics, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, 325035, China
| | - Xi Lin
- Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education, China, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, 325035, China.,Institute of Biomedical Informatics, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, 325035, China
| | - Kewei Li
- Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education, China, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, 325035, China.,Institute of Biomedical Informatics, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, 325035, China
| | - Teng Xu
- Institute of Biomedical Informatics, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, 325035, China.,Institute of Translational Medicine, Baotou Central Hospital, Baotou, 014040, China
| | - Hailin Zhang
- The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, 325027, China.,Institute of Biomedical Informatics, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, 325035, China
| | - Mei Zhu
- Institute of Biomedical Informatics, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, 325035, China.,Department of Clinical Laboratory, Zhejiang Hospital, Hangzhou, Zhejiang, 310013, China
| | - Qiyu Bao
- The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, 325027, China.,Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education, China, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, 325035, China.,Institute of Biomedical Informatics, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, 325035, China
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Wu M, Wang X, Lin X, Fu Y, Chen H, Guan X, Huang W, Chen Y, Zhang L, Jing C, Wei J, Tian J, Zhang X. Cut-offs for defining uterine prolapse using transperineal ultrasound in Chinese women: prospective multicenter study. Ultrasound Obstet Gynecol 2021; 58:127-132. [PMID: 33094536 DOI: 10.1002/uog.23524] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 10/05/2020] [Accepted: 10/12/2020] [Indexed: 06/11/2023]
Abstract
OBJECTIVE Transperineal ultrasound is a simple and highly repeatable method that has been used increasingly in the quantification of pelvic organ prolapse, but abnormal uterine descent on ultrasound in Chinese women is still poorly defined. We aimed to determine the optimal cut-off to define abnormal uterine descent on transperineal ultrasound in Chinese women. METHODS This prospective multicenter study recruited women who were examined in tertiary-level gynecological centers, due to symptoms of lower urinary tract and/or pelvic floor dysfunction, between February 2017 and September 2018. All recruited women underwent a standardized interview, pelvic organ prolapse quantification (POP-Q) examination, and four-dimensional transperineal ultrasound examination. On ultrasound, uterine descent was measured relative to the posteroinferior margin of the symphysis pubis during maximum Valsalva maneuver. The optimal cut-off value for definition of abnormal uterine descent was selected as the value with the highest Youden index and the diagnostic performance of this cut-off for the prediction of prolapse symptoms and POP-Q stage was assessed and compared by means of the area under the receiver-operating-characteristics curve (AUC). RESULTS In total, 538 Chinese women, with a mean age of 39.4 (range, 18-81) years, were enrolled into the study. Both uterine descent on transperineal ultrasound (P < 0.001) and POP-Q stage (P < 0.001) were associated strongly with presence of prolapse symptoms. Uterine descent on ultrasound was associated significantly with POP-Q stage for apical compartment prolapse (P < 0.001). The optimal cut-off value for the definition of abnormal uterine descent on transperineal ultrasound during maximum Valsalva maneuver in the prediction of prolapse symptoms was 4.79 mm above the symphysis pubis (AUC, 0.75 (95% CI, 0.71-0.78)), while the optimal cut-off values in the prediction of prolapse of POP-Q Stage ≥ 1 and POP-Q Stage ≥ 2 were 6.63 mm above the symphysis pubis (AUC, 0.83 (95% CI, 0.80-0.86)) and 8.42 mm below the symphysis pubis (AUC, 0.85 (95% CI, 0.82-0.88)), respectively. CONCLUSIONS The optimal cut-off value to define abnormal uterine descent on transperineal ultrasound during maximum Valsalva maneuver for the prediction of prolapse symptoms in this population of Chinese women was 4.79 mm above the symphysis pubis, close to that for predicting apical compartment prolapse of POP-Q Stage ≥ 1 (6.63 mm above the symphysis pubis). These are somewhat different from values described previously in mainly Caucasian populations. Ethnic differences should be taken into account in the evaluation of pelvic organ prolapse using transperineal ultrasound. © 2020 International Society of Ultrasound in Obstetrics and Gynecology.
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Affiliation(s)
- M Wu
- Department of Ultrasound, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong Province, China
| | - X Wang
- Department of Ultrasound, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China
| | - X Lin
- Department of Ultrasound, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong Province, China
| | - Y Fu
- Department of Ultrasound, Hunan Provincial Maternal and Child Health Care Hospital, Changsha, Hunan Province, China
| | - H Chen
- Department of Ultrasound, Zhongshan People's Hospital, Zhongshan, Guangdong Province, China
| | - X Guan
- Ultrasound Diagnosis Center, Shaanxi Provincial People's Hospital, The Third Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi Province, China
| | - W Huang
- Department of Ultrasound, The First People's Hospital of Foshan, Foshan, Guangdong Province, China
| | - Y Chen
- Department of Medical Ultrasound, The Fourth Hospital of Shijiazhuang, Shijiazhuang, Hebei Province, China
| | - L Zhang
- Department of Ultrasound Diagnosis, Tangdu Hospital, Fourth Military Medical University, Xi'an, Shaanxi Province, China
| | - C Jing
- Department of Ultrasound, Dalian Maternal and Child Health Care Hospital, Dalian, Liaoning Province, China
| | - J Wei
- Department of Ultrasound, Jiujiang City Maternal and Child Health Care Hospital, Jiujiang, Jiangxi Province, China
| | - J Tian
- Department of Ultrasound, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China
| | - X Zhang
- Department of Ultrasound, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong Province, China
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Lin X, Zou R, Liu Y, Ji F, Tao Z, Xu A. Continuous detection of norovirus and astrovirus in wastewater in a coastal city of China in 2014-2016. Lett Appl Microbiol 2021; 73:418-425. [PMID: 34176155 DOI: 10.1111/lam.13530] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 06/21/2021] [Accepted: 06/22/2021] [Indexed: 12/23/2022]
Abstract
Norovirus (NoV) and human astrovirus (HAstV) are important causative agents of acute gastroenteritis in children and adults. They are comprised of multiple genotypes and attention should be paid to genotype changes or emergence of new genetic variants. To study the prevalence and diversity of NoV GI, GII, and HAstV circulating in eastern China, we conducted a three-year environmental surveillance in a coastal city of Yantai. Thirty-six sewage samples were collected, processed, and examined for the presence of viral genomes by PCR. The results showed that NoV GI, GII, and HAstV were detected in all 36 samples. Six NoV GI genotypes, 11 NoV GII genotypes, and 5 HAstV serotypes were identified; GI.6, GII.17, and HAstV-5 were the most prevalent types, respectively. Persistent existence of NoV GII.17 Kawasaki 308 variant was observed during whole study period. Phylogenetic analysis reflected multiple transmission lineages in local population for both viruses. Our results reflect continuous presence of enteric viruses in sewage, improve our understanding on their molecular epidemiology, and demonstrate surveillance on sewage is an effective approach in understanding the local circulation of enteric viruses.
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Affiliation(s)
- X Lin
- Shandong Provincial Key Laboratory of Infectious Disease Control and Prevention, Shandong Center for Disease Control and Prevention, Jinan, People's Republic of China
| | - R Zou
- Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Y Liu
- Shandong Provincial Key Laboratory of Infectious Disease Control and Prevention, Shandong Center for Disease Control and Prevention, Jinan, People's Republic of China
| | - F Ji
- Shandong Provincial Key Laboratory of Infectious Disease Control and Prevention, Shandong Center for Disease Control and Prevention, Jinan, People's Republic of China
| | - Z Tao
- Shandong Provincial Key Laboratory of Infectious Disease Control and Prevention, Shandong Center for Disease Control and Prevention, Jinan, People's Republic of China
| | - A Xu
- Shandong Provincial Key Laboratory of Infectious Disease Control and Prevention, Shandong Center for Disease Control and Prevention, Jinan, People's Republic of China.,School of Public Health, Shandong University, Jinan, People's Republic of China
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Fang S, Eriyagama D, Yuan Y, Shahsavari S, Chen J, Lin X, Halami B. Dim and Dmoc Protecting Groups for Oligodeoxynucleotide Synthesis. ACTA ACUST UNITED AC 2021; 82:e111. [PMID: 32628352 DOI: 10.1002/cpnc.111] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
This protocol provides details for the preparation of nucleoside phosphoramidites with 1,3-dithian-2-yl-methyl (Dim) and 1,3-dithian-2-yl-methoxycarbonyl (Dmoc) as protecting groups, and a linker with Dmoc as the cleavable function, then using them for solid phase synthesis of sensitive oligodeoxynucleotides (ODNs). Using these Dim-Dmoc phosphoramidites and Dmoc linker, ODN synthesis can be achieved under typical conditions using phosphoramidite chemistry with slight modifications, and ODN deprotection and cleavage can be achieved under mild conditions involving oxidation with sodium periodate at pH 4 followed by aniline at pH 8. Under the mild deprotection and cleavage conditions, many sensitive functional groups including but not limited to esters, thioesters, alkyl halides, N-aryl amides, and α-chloroamides-which cannot survive the basic and nucleophilic deprotection and cleavage conditions such as concentrated ammonium hydroxide and dilute potassium methoxide used in typical ODN synthesis technologies-can survive. Thus, it is expected that the Dim-Dmoc ODN synthesis technology will find applications in the synthesis of ODNs that contain a wide range of sensitive functional groups. © 2020 Wiley Periodicals LLC. Basic Protocol: Synthesis, deprotection, cleavage, and purification of sensitive oligodeoxynucleotides Support Protocol 1: Synthesis of Dim-Dmoc nucleoside phosphoramidites Support Protocol 2: Preparation of CPG with a Dmoc linker Support Protocol 3: Synthesis of a phosphoramidite containing a sensitive alkyl ester group.
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Affiliation(s)
- Shiyue Fang
- Department of Chemistry, Michigan Technological University, Houghton, Michigan
| | | | - Yinan Yuan
- College of Forest Resources and Environmental Science, Michigan Technological University, Houghton, Michigan
| | - Shahien Shahsavari
- Department of Chemistry, Michigan Technological University, Houghton, Michigan
| | - Jinsen Chen
- Department of Chemistry, Michigan Technological University, Houghton, Michigan
| | - Xi Lin
- Department of Chemistry, Michigan Technological University, Houghton, Michigan
| | - Bhaskar Halami
- Department of Chemistry, Michigan Technological University, Houghton, Michigan
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242
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Qian C, Liu H, Cao J, Ji Y, Lu W, Lu J, Li A, Zhu X, Shen K, Xu H, Chen Q, Zhou W, Lu H, Lin H, Zhang X, Li Q, Lin X, Li K, Xu T, Zhu M, Bao Q, Zhang H. Identification of floR Variants Associated With a Novel Tn 4371-Like Integrative and Conjugative Element in Clinical Pseudomonas aeruginosa Isolates. Front Cell Infect Microbiol 2021; 11:685068. [PMID: 34235095 PMCID: PMC8256890 DOI: 10.3389/fcimb.2021.685068] [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] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Accepted: 06/01/2021] [Indexed: 11/24/2022] Open
Abstract
Florfenicol is widely used to control respiratory diseases and intestinal infections in food animals. However, there are increasing reports about florfenicol resistance of various clinical pathogens. floR is a key resistance gene that mediates resistance to florfenicol and could spread among different bacteria. Here, we investigated the prevalence of floR in 430 Pseudomonas aeruginosa isolates from human clinical samples and identified three types of floR genes (designated floR, floR-T1 and floR-T2) in these isolates, with floR-T1 the most prevalent (5.3%, 23/430). FloR-T2 was a novel floR variant identified in this study, and exhibited less identity with other FloR proteins than FloRv. Moreover, floR-T1 and floR-T2 identified in P. aeruginosa strain TL1285 were functionally active and located on multi-drug resistance region of a novel incomplete Tn4371-like integrative and conjugative elements (ICE) in the chromosome. The expression of the two floR variants could be induced by florfenicol or chloramphenicol. These results indicated that the two floR variants played an essential role in the host's resistance to amphenicol and the spreading of these floR variants might be related with the Tn4371 family ICE.
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Affiliation(s)
- Changrui Qian
- The Second Affiliated Hospital and Yuying Children’s Hospital, Wenzhou Medical University, Wenzhou, China
- Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education, China, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China
- Institute of Biomedical Informatics, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China
| | - Hongmao Liu
- The Second Affiliated Hospital and Yuying Children’s Hospital, Wenzhou Medical University, Wenzhou, China
- Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education, China, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China
- Institute of Biomedical Informatics, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China
| | - Jiawei Cao
- Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education, China, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China
| | - Yongan Ji
- Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education, China, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China
- Institute of Biomedical Informatics, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China
| | - Wei Lu
- Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education, China, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China
- Institute of Biomedical Informatics, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China
| | - Junwan Lu
- Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education, China, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China
- Institute of Biomedical Informatics, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China
| | - Aifang Li
- The Fifth Affiliated Hospital of Wenzhou Medical University, Lishui, China
| | - Xinyi Zhu
- The Second Affiliated Hospital and Yuying Children’s Hospital, Wenzhou Medical University, Wenzhou, China
- Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education, China, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China
- Institute of Biomedical Informatics, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China
| | - Kai Shen
- Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education, China, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China
- Institute of Biomedical Informatics, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China
| | - Haili Xu
- The Second Affiliated Hospital and Yuying Children’s Hospital, Wenzhou Medical University, Wenzhou, China
| | - Qianqian Chen
- Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education, China, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China
- Institute of Biomedical Informatics, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China
| | - Wangxiao Zhou
- Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education, China, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China
- Institute of Biomedical Informatics, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China
| | - Hongyun Lu
- The Second People’s Hospital of Tongxiang City, Tongxiang, China
| | - Hailong Lin
- The Second Affiliated Hospital and Yuying Children’s Hospital, Wenzhou Medical University, Wenzhou, China
- Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education, China, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China
- Institute of Biomedical Informatics, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China
| | - Xueya Zhang
- The Second Affiliated Hospital and Yuying Children’s Hospital, Wenzhou Medical University, Wenzhou, China
- Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education, China, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China
- Institute of Biomedical Informatics, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China
| | - Qiaoling Li
- The Second Affiliated Hospital and Yuying Children’s Hospital, Wenzhou Medical University, Wenzhou, China
- Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education, China, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China
- Institute of Biomedical Informatics, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China
| | - Xi Lin
- Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education, China, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China
- Institute of Biomedical Informatics, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China
| | - Kewei Li
- Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education, China, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China
- Institute of Biomedical Informatics, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China
| | - Teng Xu
- Institute of Translational Medicine, Baotou Central Hospital, Baotou, China
- Tongji University School of Medicine, Shanghai, China
| | - Mei Zhu
- Department of Clinical Laboratory, Zhejiang Hospital, Hangzhou, China
| | - Qiyu Bao
- The Second Affiliated Hospital and Yuying Children’s Hospital, Wenzhou Medical University, Wenzhou, China
- Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education, China, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China
- Institute of Biomedical Informatics, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China
| | - Hailin Zhang
- The Second Affiliated Hospital and Yuying Children’s Hospital, Wenzhou Medical University, Wenzhou, China
- Institute of Biomedical Informatics, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China
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Cheng C, Zhou W, Dong X, Zhang P, Zhou K, Zhou D, Qian C, Lin X, Li P, Li K, Bao Q, Xu T, Lu J, Ying J. Genomic Analysis of Delftia tsuruhatensis Strain TR1180 Isolated From A Patient From China With In4-Like Integron-Associated Antimicrobial Resistance. Front Cell Infect Microbiol 2021; 11:663933. [PMID: 34222039 PMCID: PMC8248536 DOI: 10.3389/fcimb.2021.663933] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Accepted: 05/31/2021] [Indexed: 12/04/2022] Open
Abstract
Delftia tsuruhatensis has become an emerging pathogen in humans. There is scant information on the genomic characteristics of this microorganism. In this study, we determined the complete genome sequence of a clinical D. tsuruhatensis strain, TR1180, isolated from a sputum specimen of a female patient in China in 2019. Phylogenetic and average nucleotide identity analysis demonstrated that TR1180 is a member of D. tsuruhatensis. TR1180 exhibited resistance to β-lactam, aminoglycoside, tetracycline and sulphonamide antibiotics, but was susceptible to phenicols, fluoroquinolones and macrolides. Its genome is a single, circular chromosome measuring 6,711,018 bp in size. Whole-genome analysis identified 17 antibiotic resistance-related genes, which match the antimicrobial susceptibility profile of this strain, as well as 24 potential virulence factors and a number of metal resistance genes. Our data showed that Delftia possessed an open pan-genome and the genes in the core genome contributed to the pathogenicity and resistance of Delftia strains. Comparative genomics analysis of TR1180 with other publicly available genomes of Delftia showed diverse genomic features among these strains. D. tsuruhatensis TR1180 harbored a unique 38-kb genomic island flanked by a pair of 29-bp direct repeats with the insertion of a novel In4-like integron containing most of the specific antibiotic resistance genes within the genome. This study reports the findings of a fully sequenced genome from clinical D. tsuruhatensis, which provide researchers and clinicians with valuable insights into this uncommon species.
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Affiliation(s)
- Cong Cheng
- Vocational and Technical College, Lishui University, Lishui, China.,Institute of Biomedical Informatics, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China
| | - Wangxiao Zhou
- Institute of Biomedical Informatics, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China.,Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education, China, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China
| | - Xu Dong
- Institute of Biomedical Informatics, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China.,Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education, China, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China
| | - Peiyao Zhang
- Institute of Biomedical Informatics, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China.,Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education, China, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China
| | - Kexin Zhou
- Institute of Biomedical Informatics, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China.,Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education, China, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China
| | - Danying Zhou
- Institute of Biomedical Informatics, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China.,Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education, China, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China
| | - Changrui Qian
- Institute of Biomedical Informatics, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China.,Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education, China, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China
| | - Xi Lin
- Institute of Biomedical Informatics, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China.,Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education, China, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China
| | - Peizhen Li
- Institute of Biomedical Informatics, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China.,Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education, China, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China
| | - Kewei Li
- Institute of Biomedical Informatics, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China.,Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education, China, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China
| | - Qiyu Bao
- Institute of Biomedical Informatics, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China.,Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education, China, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China
| | - Teng Xu
- Institute of Translational Medicine, Baotou Central Hospital, Baotou, China
| | - Junwan Lu
- Institute of Biomedical Informatics, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China.,Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education, China, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China
| | - Jun Ying
- Institute of Biomedical Informatics, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China.,Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education, China, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China
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Liang B, Zhong Y, Huang Y, Lin X, Liu J, Lin L, Hu M, Jiang J, Dai M, Wang B, Zhang B, Meng H, Lelaka JJJ, Sui H, Yang X, Huang Z. Underestimated health risks: polystyrene micro- and nanoplastics jointly induce intestinal barrier dysfunction by ROS-mediated epithelial cell apoptosis. Part Fibre Toxicol 2021; 18:20. [PMID: 34098985 PMCID: PMC8186235 DOI: 10.1186/s12989-021-00414-1] [Citation(s) in RCA: 137] [Impact Index Per Article: 45.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2021] [Accepted: 05/20/2021] [Indexed: 12/14/2022] Open
Abstract
Background Micro- and nanoplastic pollution has become a global environmental problem. Nanoplastics in the environment are still hard to detect because of analysis technology limitations. It is believed that when microplastics are found in the environment, more undetected nanoplastics are around. The current “microplastic exposure” is in fact the mixture of micro- and nanoplastic exposures. Therefore, the biological interaction between organisms among different sizes of micro- and nanoplastics should not be neglected. Results We measured the biodistribution of three polystyrene (PS) particles (50 nm PS, PS50; 500 nm PS, PS500; 5000 nm PS, PS5000) under single and co-exposure conditions in mice. We explored the underlying mechanisms by investigating the effects on three major components of the intestinal barrier (the mucus layer, tight junctions and the epithelial cells) in four intestine segments (duodenum, jejunum, ileum and colon) of mice. We found that the amounts of both PS500 and PS5000 increased when they were co-exposed with PS50 for 24 h in the mice. These increased amounts were due primarily to the increased permeability in the mouse intestines. We also confirmed there was a combined toxicity of PS50 and PS500 in the mouse intestines. This manifested as the mixture of PS50 and PS500 causing more severe dysfunction of the intestinal barrier than that caused by PS50 or PS500 alone. We found that the combined toxicity of PS micro- and nanoplastics on intestinal barrier dysfunction was caused primarily by reactive oxygen species (ROS)-mediated epithelial cell apoptosis in the mice. These findings were further confirmed by an oxidants or antioxidants pretreatment study. In addition, the combined toxicity of PS micro- and nanoplastics was also found in the mice after a 28-day repeated dose exposure. Conclusions There is a combined toxicity of PS50 and PS500 in the mouse intestines, which was caused primarily by ROS-mediated epithelial cell apoptosis in the mice. Considering that most recent studies on PS micro- and nanoplastics have been conducted using a single particle size, the health risks of exposure to PS micro- and nanoplastics on organisms may be underestimated. Supplementary Information The online version contains supplementary material available at 10.1186/s12989-021-00414-1.
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Affiliation(s)
- Boxuan Liang
- Department of Toxicology, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, 1023-1063 Shatai Nan Road, Guangzhou, 510515, PR China
| | - Yizhou Zhong
- Department of Toxicology, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, 1023-1063 Shatai Nan Road, Guangzhou, 510515, PR China
| | - Yuji Huang
- Department of Toxicology, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, 1023-1063 Shatai Nan Road, Guangzhou, 510515, PR China
| | - Xi Lin
- Department of Toxicology, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, 1023-1063 Shatai Nan Road, Guangzhou, 510515, PR China
| | - Jun Liu
- Department of Toxicology, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, 1023-1063 Shatai Nan Road, Guangzhou, 510515, PR China
| | - Li Lin
- Department of Toxicology, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, 1023-1063 Shatai Nan Road, Guangzhou, 510515, PR China
| | - Manjiang Hu
- Department of Toxicology, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, 1023-1063 Shatai Nan Road, Guangzhou, 510515, PR China
| | - Junying Jiang
- Faculty of Preventive Medicine, School of Public Health, Guangdong Pharmaceutical University, Guangzhou, 510006, PR China
| | - Mingzhu Dai
- Hunter Biotechnology, Inc., Hangzhou, 310051, PR China
| | - Bo Wang
- Department of Toxicology, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, 1023-1063 Shatai Nan Road, Guangzhou, 510515, PR China
| | - Bingli Zhang
- Department of Toxicology, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, 1023-1063 Shatai Nan Road, Guangzhou, 510515, PR China
| | - Hao Meng
- Department of Toxicology, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, 1023-1063 Shatai Nan Road, Guangzhou, 510515, PR China
| | - Jesse Justin J Lelaka
- Department of Toxicology, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, 1023-1063 Shatai Nan Road, Guangzhou, 510515, PR China
| | - Haixia Sui
- Division III of risk assessment, China National Center for Food Safety Risk Assessment, Beijing, 100022, PR China
| | - Xingfen Yang
- Food Safety and Health Research Center, School of Public Health, Southern Medical University, 1023-1063 Shatai Nan Road, Guangzhou, 510515, PR China.
| | - Zhenlie Huang
- Department of Toxicology, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, 1023-1063 Shatai Nan Road, Guangzhou, 510515, PR China.
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Rahman P, Helliwell P, Deodhar A, Kollmeier A, Hsia EC, Zhou B, Lin X, Han C, Mease PJ. POS1048 IN PHASE-3 TRIALS DISCOVER 1 & 2, GUSELKUMAB REDUCED FATIGUE OVER 52 WEEKS IN PATIENTS WITH PSORIATIC ARTHRITIS AND DEMONSTRATED INDEPENDENT TREATMENT EFFECTS ON FATIGUE AFTER ADJUSTMENT FOR CLINICAL RESPONSE (ACR20). Ann Rheum Dis 2021. [DOI: 10.1136/annrheumdis-2021-eular.1686] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Background:DISCOVER 1 & 2 are phase-3 trials of guselkumab (GUS, an IL-23 inhibitor) in patients with psoriatic arthritis (PsA). In both trials, treatment with GUS led to significantly more improvement than placebo (PBO) in the primary endpoint (American College of Rheumatology 20% improvement criteria [ACR20]) and in other measures of arthritis and psoriasis at week (w) 24,1,2 and these improvements were maintained through 1 year of active treatment.3,4Objectives:To evaluate the effect of GUS on fatigue in DISCOVER 1 & 2 using the patient reported outcome (PRO) FACIT-Fatigue, which has demonstrated content validity and strong psychometric properties in clinical trials.5Methods:DISCOVER 1 & 2 enrolled patients with active PsA, despite non-biologic DMARDS or NSAIDS, who were biologic naïve except ~30% of patients in DISCOVER 1 who had received 1-2 TNFi. Patients were randomized (1:1:1) in a blinded fashion to subcutaneous GUS 100 mg at w0, w4, then every (q) 8w; GUS 100 mg q4w; or matching PBO. At w24, PBO patients were switched to GUS q4w. Concomitant treatment with select non-biologic DMARDS, oral corticosteroids, and NSAIDs was allowed. The FACIT-Fatigue is a 13-item PRO assessing fatigue and its impact on daily activities and function over the past 7 days, total score ranging from 0 to 52, higher score denoting less fatigue. A change of ≥4 points is considered clinically meaningful.5 The change from baseline in FACIT-Fatigue presented below is based on observed data. Mediation analysis6 was applied to the treatment effect of GUS on FACIT-Fatigue to estimate the natural direct and indirect effects, after adjusting for ACR20 response (Table 1).Results:At baseline in DISCOVER 1 & 2, the mean FACIT-fatigue scores (SD) were 30.4 (10.4) and 29.7 (9.7), respectively, indicating that patients with PsA experienced fatigue worse than the general population. At w24 in the DISCOVER trials, treatment with GUS led to significant improvements in FACIT-Fatigue scores compared with PBO, as early as w16 in DISCOVER 1 and w8 in DISCOVER 2. Improvements in fatigue were similar between GUS q4w and q8w doses, and the improvements at w24 were maintained through w52 (Figure 1). After a switch to GUS q4w at w24, PBO patients achieved FACIT-Fatigue scores that were comparable to those of GUS patients (Figure 1). 54%-63% of GUS patients compared with 35%-46% of PBO patients achieved clinically meaningful improvement (≥4 points) in FACIT-Fatigue at w24 (P≤0.003). At w52, 61%-70% of both GUS and PBO to GUS groups reached this improvement. As evaluated by mediation analysis at w24, GUS had independent positive treatment effects on fatigue (12%-36% in the q8w GUS dosing group and 69%-70% in the q4w GUS group) after adjustment for ACR20 response (Table 1).Conclusion:In 2 phase-3 trials, GUS treatment improved fatigue when compared to PBO during PBO-controlled periods and maintained improvements through 1 year of active treatment. Substantial proportions of those effects were independent of the effects on ACR20, especially for the q4W dosing group.References:[1]Deodhar et al. Lancet 2020;395:1115[2]Mease et al. Lancet 2020;395:1126[3]Ritchlin et al. EULAR20. SAT0397[4]McInnes et al. EULAR20. SAT0402[5]Cella et al. J Patient-Reported Outcomes 2019;3:30[6]Valeri et al. Psychologic Meth 2013;18:137Table 1.Mediation Analysis: Guselkumab Has Direct Effects and Indirect Effects (Mediated through ACR20) on Fatigue in PsAEffectGUS 100 mg q8w vs. PBO (95% CI)GUS 100 mg q4w vs. PBO (95% CI)DISCOVER-1Total Effect3.1 (1.0, 5.2)(p<0.02)3.8 (1.9, 5.4)(p<0.02)% Direct Effect11.7%68.5%% Indirect effect mediated by ACR2088.3%31.5%DISCOVER-2Total Effect4.0 (2.4, 5.5)(p<0.02)3.6 (2.1, 5.0)(p<0.02)% Direct Effect36.3%69.7%% Indirect effect mediated by ACR2063.7%30.3%ACR, American College of Rheumatology; CI, confidence interval; GUS, guselkumab; PBO, placebo; PsA, psoriatic arthritis; q4W, every 4 weeks; q8W, every 8 weeksDisclosure of Interests:Proton Rahman Speakers bureau: Received speakers fees from Abbott, AbbVie, Amgen, BMS, Celgene, Lilly, Janssen, Novartis, Pfizer, Grant/research support from: Received grant/research support from Janssen and Novartis, consultation fees from Abbott, AbbVie, Amgen, BMS, Celgene, Lilly, Janssen, Novartis, and Pfizer, Philip Helliwell Consultant of: Consultation fees paid to charity (AbbVie, Amgen, Pfizer, UCB) or himself (Celgene, Galapagos), Grant/research support from: Received grants/research support paid to charity (AbbVie, Janssen, Novartis), Atul Deodhar Speakers bureau: Received speakers fees from AbbVie, Amgen, Boehringer Ingelheim, Bristol Myer Squibb (BMS), Eli Lilly, GSK, Janssen, Novartis, Pfizer, UCB, Consultant of: Received consultation fees from AbbVie, Amgen, Boehringer Ingelheim, Bristol Myer Squibb (BMS), Eli Lilly, GSK, Janssen, Novartis, Pfizer, UCB, Grant/research support from: Received grant/research support from AbbVie, Eli Lilly, GSK, Novartis, Pfizer, UCB, Alexa Kollmeier Shareholder of: Shareholder of Johnson & Johnson, Employee of: Employee of Janssen Research & Development, LLC, Elizabeth C Hsia Shareholder of: Shareholder of Johnson & Johnson, Employee of: Employee of Janssen Research & Development, LLC, Bei Zhou Shareholder of: Shareholder of Johnson & Johnson, Employee of: Employee of Janssen Research & Development, LLC, Xiwu Lin Shareholder of: Shareholder of Johnson & Johnson, Employee of: Employee of Janssen Research & Development, LLC, Chenglong Han Shareholder of: Shareholder of Johnson & Johnson, Employee of: Employee of Janssen Research & Development, LLC, Philip J Mease Speakers bureau: Received speakers fees from Abbott, Amgen, Biogen Idec, BMS, Eli Lilly, Genentech, Janssen, Pfizer, UCB, Consultant of: Received consultation fees from Abbott, Amgen, Biogen Idec, BMS, Celgene Corporation, Eli Lilly, Novartis, Pfizer, Sun Pharmaceutical, UCB, Grant/research support from: Received grant/research support from Abbott, Amgen, Biogen Idec, BMS, Celgene Corporation, Eli Lilly, Novartis, Pfizer, Sun Pharmaceutical, UCB.
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Mauro D, Lin X, Guggino G, Chong D, Raimondo S, MA D, Xiao F, Du W, Lo Pizzo M, Zhang L, Rizzo A, Alessandro R, Lu L, Ciccia F. OP0042 BLOCKING OF CD103+ TISSUE RESIDENT MEMORY T CELLS (TRM) AS A THERAPEUTIC STRATEGY IN SJOGREN’S SYNDROME. Ann Rheum Dis 2021. [DOI: 10.1136/annrheumdis-2021-eular.2649] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Background:Tissue-resident memory T cells (TRM), are a recently identified T cells population featuring tissue localization and expression of markers of tissue homing, CD69 and CD103. Recently, the expansion of CD8+ TRMs and their involvement in the sialadenitis was described in a murine model of SS. However, CD4+ and CD8+ TRM’s functional relevance in pSS is still not fully understood, and the TRM therapeutic targeting unexplored.Objectives:The study aimed to address the role of CD4+ and CD8+ TRMs in the pathogenesis of pSS and to explore the therapeutic targeting of the tissue residency marker of TRM CD103.Methods:An animal model of experimental (ESS) obtained by immunization of female C57BL/6 mice (n=10) with salivary glands (SG) protein extract and Freund’s complete adjuvant used to investigate the dynamic of infiltration of SG by CD4+ and CD8+ TRMs, their frequency, and the impact of CD103 blockade. For the therapeutic intervention, at 10-weeks post-immunization, the salivary gland was cannulated via Wharton’s duct, and an anti-CD103 neutralizing antibody or vehicle-injected. The mice’s saliva flow rate was assessed, and SGs were analyzed by Flow-cytometry and immunohistochemistry (IHC).The frequency and localization of TRMs was analyzed in minor SG of sicca syndrome (nSS) and pSS patients (n=39) by flow cytometry and IHC. The expression of genes involved in the tissue retention of TRMs was assessed in SG by RT-PCR.Results:Upon the ESS progression, a significant progressive increase in CD45+CD103+ cells frequency was observed from 5wk to 20wk post-immunization (p<0.001), where the CD8+ were the most abundant, followed by CD4+. Consistently, CD103+CD8+ T cells were detected within the lymphocytic infiltration of SG from ESS mice. Sorted purified SG CD10+CD3+CD8+ T cells showed higher Granzyme B, TNF-alpha expression compared to CD103-CD3+CD8+ at both mRNA and protein levels. Notably, ESS mice treated with anti-CD103 showed improvement in salivary function (p<0.05) and reduced lymphocytic infiltrations measured as focus score (FS) (p<0.01) and area-fraction (p<0.01). Consistently, anti-CD103 treatment consistently reduced CD103+ cells and IFN-gamma+, Granzyme B+, and TNFa+ CD8+ cells. We next performed phenotypic analysis of CD45+CD103+ immune cells in the SG of pSS patients observing an increase in both with CD8+CD103+CD69+ and CD4+CD103+CD69+ (p<0.05). Finally, IHC showed that the expansion of TRMs in pSS salivary glands was accompanied by a down-regulation of E-cadherin glandular expression and their migration outside the epithelium in the context of inflammatory infiltrates. SG of patients with pSS showed a significant up-regulation of BLIMP1, KFL-2, and S1PR1 and down-regulation of ITGB2. CXCL9 and CXCL10, and IL-15 involved in the tissue recruitment and long-term survival of TRMs were significantly modulated in pSS salivary glands.Conclusion:TRM are expanded and activated in the SG of pSS and ESS, participating in the organization of tissue inflammation. Although the mechanisms behind this expansion are still not fully understood, CD103 could be a valuable novel therapeutic target to prevent lymphocytic infiltrations and glandular destruction in Sjogren syndrome.Disclosure of Interests:None declared
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Gensollen T, Lin X, Zhang T, Pyzik M, See P, Glickman JN, Ginhoux F, Waldor M, Salmi M, Rantakari P, Blumberg RS. Embryonic macrophages function during early life to determine invariant natural killer T cell levels at barrier surfaces. Nat Immunol 2021; 22:699-710. [PMID: 34040226 PMCID: PMC8171892 DOI: 10.1038/s41590-021-00934-0] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Accepted: 04/16/2021] [Indexed: 12/24/2022]
Abstract
It is increasingly recognized that immune development within mucosal tissues is under the control of environmental factors during early life. However, the cellular mechanisms that underlie such temporally and regionally restrictive governance of these processes are unclear. Here, we uncover an extrathymic pathway of immune development within the colon that is controlled by embryonic but not bone marrow-derived macrophages, which determines the ability of these organs to receive invariant natural killer T (iNKT) cells and allow them to establish local residency. Consequently, early-life perturbations of fetal-derived macrophages result in persistent decreases of mucosal iNKT cells and is associated with later-life susceptibility or resistance to iNKT cell-associated mucosal disorders. These studies uncover a host developmental program orchestrated by ontogenically distinct macrophages that is regulated by microbiota, and they reveal an important postnatal function of macrophages that emerge in fetal life.
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Affiliation(s)
- Thomas Gensollen
- Division of Gastroenterology, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, 75 Francis Street, Boston, MA 02115, USA
| | - Xi Lin
- Division of Gastroenterology, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, 75 Francis Street, Boston, MA 02115, USA
| | - Ting Zhang
- Division of Gastroenterology, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, 75 Francis Street, Boston, MA 02115, USA,Howard Hughes Medical Institute, Boston, MA 02115, USA
| | - Michal Pyzik
- Division of Gastroenterology, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, 75 Francis Street, Boston, MA 02115, USA
| | - Peter See
- Singapore Immunology Network, Agency for Science, Technology and Research, Singapore 138648, Singapore
| | - Jonathan N. Glickman
- Department of Pathology, Beth Israel Deaconess Medical Center, Boston, MA 02215, USA
| | - Florent Ginhoux
- Singapore Immunology Network, Agency for Science, Technology and Research, Singapore 138648, Singapore
| | - Matthew Waldor
- Division of Gastroenterology, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, 75 Francis Street, Boston, MA 02115, USA,Howard Hughes Medical Institute, Boston, MA 02115, USA
| | - Marko Salmi
- Institute of Biomedicine, University of Turku, Turku, FI-20520, Finland,MediCity Research Laboratory, University of Turku, Turku, FI-20520, Finland
| | - Pia Rantakari
- Institute of Biomedicine, University of Turku, Turku, FI-20520, Finland,Turku Bioscience Centre, University of Turku and Åbo Akademi University, Turku, FI-20520, Finland
| | - Richard S. Blumberg
- Division of Gastroenterology, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, 75 Francis Street, Boston, MA 02115, USA,Correspondence to:
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Lin S, Chen H, Chen Z, Yang F, Ye F, Zheng Y, Yang J, Lin X, Sun H, Wang L, Wen A, Dong H, Xiao Q, Deng D, Cao Y, Lu G. Crystal structure of SARS-CoV-2 nsp10 bound to nsp14-ExoN domain reveals an exoribonuclease with both structural and functional integrity. Nucleic Acids Res 2021; 49:5382-5392. [PMID: 33956156 PMCID: PMC8136770 DOI: 10.1093/nar/gkab320] [Citation(s) in RCA: 78] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Revised: 04/08/2021] [Accepted: 04/21/2021] [Indexed: 02/05/2023] Open
Abstract
The emergence of SARS-CoV-2 infection has posed unprecedented threat to global public health. The virus-encoded non-structural protein 14 (nsp14) is a bi-functional enzyme consisting of an exoribonuclease (ExoN) domain and a methyltransferase (MTase) domain and plays a pivotal role in viral replication. Here, we report the structure of SARS-CoV-2 nsp14-ExoN domain bound to its co-factor nsp10 and show that, compared to the SARS-CoV nsp10/nsp14-full-length complex, SARS-CoV-2 nsp14-ExoN retains an integral exoribonuclease fold and preserves an active configuration in the catalytic center. Analysis of the nsp10/nsp14-ExoN interface reveals a footprint in nsp10 extensively overlapping with that observed in the nsp10/nsp16 structure. A marked difference in the co-factor when engaging nsp14 and nsp16 lies in helix-α1′, which is further experimentally ascertained to be involved in nsp14-binding but not in nsp16-engagement. Finally, we also show that nsp10/nsp14-ExoN is enzymatically active despite the absence of nsp14-MTase domain. These data demonstrate that SARS-CoV-2 nsp10/nsp14-ExoN functions as an exoribonuclease with both structural and functional integrity.
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Affiliation(s)
- Sheng Lin
- West China Hospital Emergency Department (WCHED), State Key Laboratory of Biotherapy and Cancer Center, West China Hospital and Collaborative Innovation Center of Biotherapy, Sichuan University, Chengdu, Sichuan 610041, China
| | - Hua Chen
- West China Hospital Emergency Department (WCHED), State Key Laboratory of Biotherapy and Cancer Center, West China Hospital and Collaborative Innovation Center of Biotherapy, Sichuan University, Chengdu, Sichuan 610041, China
| | - Zimin Chen
- West China Hospital Emergency Department (WCHED), State Key Laboratory of Biotherapy and Cancer Center, West China Hospital and Collaborative Innovation Center of Biotherapy, Sichuan University, Chengdu, Sichuan 610041, China
| | - Fanli Yang
- West China Hospital Emergency Department (WCHED), State Key Laboratory of Biotherapy and Cancer Center, West China Hospital and Collaborative Innovation Center of Biotherapy, Sichuan University, Chengdu, Sichuan 610041, China
| | - Fei Ye
- West China Hospital Emergency Department (WCHED), State Key Laboratory of Biotherapy and Cancer Center, West China Hospital and Collaborative Innovation Center of Biotherapy, Sichuan University, Chengdu, Sichuan 610041, China
| | - Yue Zheng
- West China Hospital Emergency Department (WCHED), State Key Laboratory of Biotherapy and Cancer Center, West China Hospital and Collaborative Innovation Center of Biotherapy, Sichuan University, Chengdu, Sichuan 610041, China
| | - Jing Yang
- West China Hospital Emergency Department (WCHED), State Key Laboratory of Biotherapy and Cancer Center, West China Hospital and Collaborative Innovation Center of Biotherapy, Sichuan University, Chengdu, Sichuan 610041, China
| | - Xi Lin
- West China Hospital Emergency Department (WCHED), State Key Laboratory of Biotherapy and Cancer Center, West China Hospital and Collaborative Innovation Center of Biotherapy, Sichuan University, Chengdu, Sichuan 610041, China
| | - Honglu Sun
- West China Hospital Emergency Department (WCHED), State Key Laboratory of Biotherapy and Cancer Center, West China Hospital and Collaborative Innovation Center of Biotherapy, Sichuan University, Chengdu, Sichuan 610041, China
| | - Lingling Wang
- West China Hospital Emergency Department (WCHED), State Key Laboratory of Biotherapy and Cancer Center, West China Hospital and Collaborative Innovation Center of Biotherapy, Sichuan University, Chengdu, Sichuan 610041, China
| | - Ao Wen
- West China Hospital Emergency Department (WCHED), State Key Laboratory of Biotherapy and Cancer Center, West China Hospital and Collaborative Innovation Center of Biotherapy, Sichuan University, Chengdu, Sichuan 610041, China
| | - Haohao Dong
- Laboratory of Aging Research and Cancer Drug Target, State Key Laboratory of Biotherapy and Cancer Center, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Qingjie Xiao
- Department of Obstetrics, Key Laboratory of Birth Defects and Related Disease of Women and Children of MOE, State Key Laboratory of Biotherapy, West China Second Hospital, Sichuan University, Chengdu, Sichuan 610041, China.,National Facility for Protein Science in Shanghai, Shanghai Advanced Research Institute (Zhangjiang Laboratory), Chinese Academy of Sciences, Shanghai 201210, China
| | - Dong Deng
- Department of Obstetrics, Key Laboratory of Birth Defects and Related Disease of Women and Children of MOE, State Key Laboratory of Biotherapy, West China Second Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Yu Cao
- West China Hospital Emergency Department (WCHED), State Key Laboratory of Biotherapy and Cancer Center, West China Hospital and Collaborative Innovation Center of Biotherapy, Sichuan University, Chengdu, Sichuan 610041, China.,Disaster Medicine Center, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Guangwen Lu
- West China Hospital Emergency Department (WCHED), State Key Laboratory of Biotherapy and Cancer Center, West China Hospital and Collaborative Innovation Center of Biotherapy, Sichuan University, Chengdu, Sichuan 610041, China.,WestVac Biopharma Co., Ltd, Chengdu, Sichuan 610000, China
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249
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Li F, Lozier MS, Bacon S, Bower AS, Cunningham SA, de Jong MF, deYoung B, Fraser N, Fried N, Han G, Holliday NP, Holte J, Houpert L, Inall ME, Johns WE, Jones S, Johnson C, Karstensen J, Le Bras IA, Lherminier P, Lin X, Mercier H, Oltmanns M, Pacini A, Petit T, Pickart RS, Rayner D, Straneo F, Thierry V, Visbeck M, Yashayaev I, Zhou C. Subpolar North Atlantic western boundary density anomalies and the Meridional Overturning Circulation. Nat Commun 2021; 12:3002. [PMID: 34031423 PMCID: PMC8144605 DOI: 10.1038/s41467-021-23350-2] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Accepted: 04/21/2021] [Indexed: 11/29/2022] Open
Abstract
Changes in the Atlantic Meridional Overturning Circulation, which have the potential to drive societally-important climate impacts, have traditionally been linked to the strength of deep water formation in the subpolar North Atlantic. Yet there is neither clear observational evidence nor agreement among models about how changes in deep water formation influence overturning. Here, we use data from a trans-basin mooring array (OSNAP-Overturning in the Subpolar North Atlantic Program) to show that winter convection during 2014-2018 in the interior basin had minimal impact on density changes in the deep western boundary currents in the subpolar basins. Contrary to previous modeling studies, we find no discernable relationship between western boundary changes and subpolar overturning variability over the observational time scales. Our results require a reconsideration of the notion of deep western boundary changes representing overturning characteristics, with implications for constraining the source of overturning variability within and downstream of the subpolar region.
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Affiliation(s)
- F Li
- State Key Laboratory of Marine Environmental Science & College of Ocean and Earth Sciences, Xiamen University, Xiamen, China.
- School of Earth and Atmospheric Sciences, Georgia Institute of Technology, Atlanta, GA, USA.
| | - M S Lozier
- School of Earth and Atmospheric Sciences, Georgia Institute of Technology, Atlanta, GA, USA.
| | - S Bacon
- National Oceanography Centre, Southampton, UK
| | - A S Bower
- Woods Hole Oceanographic Institution, Woods Hole, MA, USA
| | | | - M F de Jong
- NIOZ Royal Netherlands Institute for Sea Research, Texel, Netherlands
| | - B deYoung
- Department of Physics and Physical Oceanography, Memorial University, St. John's, NL, Canada
| | - N Fraser
- Scottish Association for Marine Science, Oban, UK
| | - N Fried
- NIOZ Royal Netherlands Institute for Sea Research, Texel, Netherlands
| | - G Han
- Fisheries and Oceans Canada, Institute of Ocean Sciences, Sidney, BC, Canada
- Fisheries and Oceans Canada, Northwest Atlantic Fisheries Centre, St. John's, NL, Canada
| | | | - J Holte
- Scripps Institution of Oceanography, UCSD, La Jolla, CA, USA
| | - L Houpert
- National Oceanography Centre, Southampton, UK
| | - M E Inall
- Scottish Association for Marine Science, Oban, UK
- School of Geosciences, Edinburgh University, Edinburgh, UK
| | - W E Johns
- Department of Ocean Sciences, University of Miami, Miami, FL, USA
| | - S Jones
- Scottish Association for Marine Science, Oban, UK
| | - C Johnson
- Scottish Association for Marine Science, Oban, UK
| | - J Karstensen
- GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany
| | - I A Le Bras
- Woods Hole Oceanographic Institution, Woods Hole, MA, USA
- Scripps Institution of Oceanography, UCSD, La Jolla, CA, USA
| | - P Lherminier
- Univ. Brest, Ifremer, CNRS, IRD, Laboratoire d'Océanographie Physique et Spatiale, Plouzané, France
| | - X Lin
- Frontier Science Center for Deep Ocean Multispheres and Earth System and Physical Oceanography Laboratory, Ocean University of China, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
| | - H Mercier
- CNRS, Laboratoire d'Océanographie Physique et Spatiale, Plouzané, France
| | - M Oltmanns
- GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany
| | - A Pacini
- Woods Hole Oceanographic Institution, Woods Hole, MA, USA
| | - T Petit
- School of Earth and Atmospheric Sciences, Georgia Institute of Technology, Atlanta, GA, USA
| | - R S Pickart
- Woods Hole Oceanographic Institution, Woods Hole, MA, USA
| | - D Rayner
- National Oceanography Centre, Southampton, UK
| | - F Straneo
- Scripps Institution of Oceanography, UCSD, La Jolla, CA, USA
| | - V Thierry
- Univ. Brest, Ifremer, CNRS, IRD, Laboratoire d'Océanographie Physique et Spatiale, Plouzané, France
| | - M Visbeck
- GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany
| | - I Yashayaev
- Bedford Institute of Oceanography, Dartmouth, NS, Canada
| | - C Zhou
- Frontier Science Center for Deep Ocean Multispheres and Earth System and Physical Oceanography Laboratory, Ocean University of China, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
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Wang X, Yao H, Zhang Z, Li X, Chen C, Yin L, Hu K, Yan Y, Li Z, Yu B, Cao F, Liu X, Lin X, Zhang Q. Enhanced Thermoelectric Performance in High Entropy Alloys Sn 0.25Pb 0.25Mn 0.25Ge 0.25Te. ACS Appl Mater Interfaces 2021; 13:18638-18647. [PMID: 33847476 DOI: 10.1021/acsami.1c00221] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Entropy is a physical quantity gauging the degree of chaos in the system. High entropy alloying is thus an effective strategy to reduce the lattice thermal conductivity of the thermoelectric materials. In this paper, PbTe, GeTe, and MnTe are coalloyed with SnTe to form a single-phase solid solution. Because of the inclusion of various elements at the cationic (Sn2+) site, the configurational entropy increases, and the phonon scattering is strongly enhanced, leading to a reduced lattice thermal conductivity. In addition, the Seebeck coefficient is improved because of the band modification via this coalloying. Ga is then further doped to optimize the carrier concentration to ∼5.7 × 1020 cm-3 and reduce the room-temperature lattice thermal conductivity to ∼0.6 W m-1 K-1. Finally, a high peak ZT value of ∼1.52 at 823 K and an average ZT value ∼1.0 from 323 to 823 K were obtained in Ga0.025(Sn0.25Pb0.25Mn0.25Ge0.25)0.975Te.
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Affiliation(s)
- Xinyu Wang
- School of Materials Science and Engineering, and Institute of Materials Genome and Big Data, Harbin Institute of Technology, Shenzhen 518055, P.R. China
| | - Honghao Yao
- School of Materials Science and Engineering, and Institute of Materials Genome and Big Data, Harbin Institute of Technology, Shenzhen 518055, P.R. China
| | - Zongwei Zhang
- School of Materials Science and Engineering, and Institute of Materials Genome and Big Data, Harbin Institute of Technology, Shenzhen 518055, P.R. China
| | - Xiaofang Li
- School of Materials Science and Engineering, and Institute of Materials Genome and Big Data, Harbin Institute of Technology, Shenzhen 518055, P.R. China
| | - Chen Chen
- School of Materials Science and Engineering, and Institute of Materials Genome and Big Data, Harbin Institute of Technology, Shenzhen 518055, P.R. China
| | - Li Yin
- School of Materials Science and Engineering, and Institute of Materials Genome and Big Data, Harbin Institute of Technology, Shenzhen 518055, P.R. China
| | - Kangning Hu
- School of Materials Science and Engineering, and Institute of Materials Genome and Big Data, Harbin Institute of Technology, Shenzhen 518055, P.R. China
| | - Yirui Yan
- School of Materials Science and Engineering, and Institute of Materials Genome and Big Data, Harbin Institute of Technology, Shenzhen 518055, P.R. China
| | - Zhou Li
- School of Materials Science and Engineering, and Institute of Materials Genome and Big Data, Harbin Institute of Technology, Shenzhen 518055, P.R. China
| | - Bo Yu
- Ningbo Fengcheng Advanced Energy Materials Research Institute, Fenghua District, Ningbo, Zhejiang 315500, China
| | - Feng Cao
- School of Science, Harbin Institute of Technology, Shenzhen 518055, P.R. China
| | - Xingjun Liu
- School of Materials Science and Engineering, and Institute of Materials Genome and Big Data, Harbin Institute of Technology, Shenzhen 518055, P.R. China
- State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin 150001, P.R. China
| | - Xi Lin
- School of Materials Science and Engineering, and Institute of Materials Genome and Big Data, Harbin Institute of Technology, Shenzhen 518055, P.R. China
- State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin 150001, P.R. China
- Blockchain Development and Research Institute, Harbin Institute of Technology, Shenzhen 518055, P.R. China
| | - Qian Zhang
- School of Materials Science and Engineering, and Institute of Materials Genome and Big Data, Harbin Institute of Technology, Shenzhen 518055, P.R. China
- State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin 150001, P.R. China
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