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Mao H, Zhang H, Luo Y, Yang J, Liu Y, Zhang S, Chen W, Li Q, Dai Z. Primary study of the relative and compound biological effectiveness model for boron neutron capture therapy based on nanodosimetry. Med Phys 2024; 51:3076-3092. [PMID: 38408025 DOI: 10.1002/mp.16998] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Revised: 12/31/2023] [Accepted: 02/07/2024] [Indexed: 02/28/2024] Open
Abstract
BACKGROUND The current radiobiological model employed for boron neutron capture therapy (BNCT) treatment planning, which relies on microdosimetry, fails to provide an accurate representation the biological effects of BNCT. The precision in calculating the relative biological effectiveness (RBE) and compound biological effectiveness (CBE) plays a pivotal role in determining the therapeutic efficacy of BNCT. Therefore, this study focuses on how to improve the accuracy of the biological effects of BNCT. PURPOSE The purpose of this study is to propose new radiation biology models based on nanodosimetry to accurately assess RBE and CBE for BNCT. METHODS Nanodosimetry, rooted in ionization cluster size distributions (ICSD), introduces a novel approach to characterize radiation quality by effectively delineating RBE through the ion track structure at the nanoscale. In the context of prior research, this study presents a computational model for the nanoscale assessment of RBE and CBE. We establish a simplified model of DNA chromatin fiber using the Monte Carlo code TOPAS-nBio to evaluate the applicability of ICSD to BNCT and compute nanodosimetric parameters. RESULTS Our investigation reveals that both homogeneous and heterogeneous nanodosimetric parameters, as well as the corresponding biological model coefficients α and β, along with RBE values, exhibit variations in response to varying intracellular 10B concentrations. Notably, the nanodosimetric parameterM 1 C 2 $M_1^{{{\mathrm{C}}}_2}$ effectively captures the fluctuations in model coefficients α and RBE. CONCLUSION Our model facilitates a nanoscale analysis of BNCT, enabling predictions of nanodosimetric quantities for secondary ions as well as RBE, CBE, and other essential biological metrics related to the distribution of boron. This contribution significantly enhances the precision of RBE calculations and holds substantial promise for future applications in treatment planning.
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Affiliation(s)
- Haijun Mao
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, China
- School of Nuclear Science and Technology, Lanzhou University, Lanzhou, China
| | - Hui Zhang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Ying Luo
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Jingfen Yang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Yinuo Liu
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, China
- School of Future Technology, Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Shichao Zhang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, China
- School of Nuclear Science and Technology, Lanzhou University, Lanzhou, China
| | - Weiqiang Chen
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, China
- University of Chinese Academy of Sciences, Beijing, China
- Putian Lanhai Nuclear Medicine Research Center, Putian, China
| | - Qiang Li
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, China
- University of Chinese Academy of Sciences, Beijing, China
- Putian Lanhai Nuclear Medicine Research Center, Putian, China
| | - Zhongying Dai
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, China
- University of Chinese Academy of Sciences, Beijing, China
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Mao H, Feng Y, Feng J, Yusufu Y, Sun M, Yang L, Jiang Q. Quercetin-3-O-β-D-glucuronide attenuates osteoarthritis by inhibiting cartilage extracellular matrix degradation and inflammation. J Orthop Translat 2024; 45:236-246. [PMID: 38601200 PMCID: PMC11004501 DOI: 10.1016/j.jot.2024.01.007] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Revised: 01/21/2024] [Accepted: 01/31/2024] [Indexed: 04/12/2024] Open
Abstract
Objective Osteoarthritis (OA) is a chronic degenerative joint disease characterized by cartilage damage. In order to find a safer and more effective drug to treat OA, we investigated the role of quercetin-3-O-β-D-glucuronide (Q3GA) in OA. Methods We used qRT-PCR and western blots to detect the effects of Q3GA on extracellular matrix (ECM) and inflammation related genes and proteins in interleukin-1β (IL-1β) induced chondrocytes. We determined the effect of Q3GA on the NF-κB pathway using western blots and immunofluorescence. Moreover, the effect of Q3GA on the Nrf2 pathway was evaluated through molecular docking, western blots, and immunofluorescence experiments and further validated by transfection with Nrf2 siRNA. Subsequently, we established a rat model of OA and injected Q3GA into the joint cavity for treatment. After 5 weeks of Q3GA administration, samples were obtained for micro-computed tomography scanning and histopathological staining to determine the effects of Q3GA on OA rats. Results We found that Q3GA reduced the degradation of ECM and the expression of inflammatory related proteins and genes in primary chondrocytes of rats induced by IL-1β, as well as the expression of nitric oxide (NO) and reactive oxygen species (ROS). It inhibited the activation of the NF-κB pathway by increasing the expression of Nrf2 in the nucleus. In addition, Q3GA inhibited cartilage degradation in OA rats and promoted cartilage repair. Conclusion Q3GA attenuates OA by inhibiting ECM degradation and inflammation via the Nrf2/NF-κB axis. The translational potential of this article The results of our study demonstrate the promising potential of Q3GA as a candidate drug for the treatment of OA and reveal its key mechanisms.
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Affiliation(s)
- Haijun Mao
- Department of Orthopedic Surgery, Nanjing Drum Tower Hospital Clinical College of Nanjing Medical University, Nanjing, 210008, China
| | - Yanwei Feng
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 210009, China
| | - Juan Feng
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 210009, China
| | - Yalikun Yusufu
- Department of Orthopedic Surgery, Nanjing Drum Tower Hospital Clinical College of Nanjing Medical University, Nanjing, 210008, China
- Division of Sports Medicine and Adult Reconstructive Surgery, Department of Orthopedic Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Medical School, Nanjing University, Nanjing, 210008, China
- State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing, 210008, China
- Branch of National Clinical Research Center for Orthopedics, Sports Medicine and Rehabilitation, China
| | - Minghui Sun
- Department of Orthopedic Surgery, Nanjing Drum Tower Hospital Clinical College of Nanjing Medical University, Nanjing, 210008, China
- Division of Sports Medicine and Adult Reconstructive Surgery, Department of Orthopedic Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Medical School, Nanjing University, Nanjing, 210008, China
- State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing, 210008, China
- Branch of National Clinical Research Center for Orthopedics, Sports Medicine and Rehabilitation, China
| | - Lei Yang
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 210009, China
| | - Qing Jiang
- Department of Orthopedic Surgery, Nanjing Drum Tower Hospital Clinical College of Nanjing Medical University, Nanjing, 210008, China
- Division of Sports Medicine and Adult Reconstructive Surgery, Department of Orthopedic Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Medical School, Nanjing University, Nanjing, 210008, China
- State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing, 210008, China
- Branch of National Clinical Research Center for Orthopedics, Sports Medicine and Rehabilitation, China
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Wang Z, Mao H, Xu G. Fibrinogen, albumin-to-globulin ratio, and fibrinogen to albumin-to-globulin ratio may be potential diagnostic biomarkers for infected tibial nonunion. Int Immunopharmacol 2023; 121:110542. [PMID: 37356122 DOI: 10.1016/j.intimp.2023.110542] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Revised: 06/02/2023] [Accepted: 06/17/2023] [Indexed: 06/27/2023]
Abstract
AIM The accurate preoperative diagnosis of infected tibial nonunion remains challenging. Hence, we evaluated the diagnostic potential of novel biomarkers for infected tibial nonunion. METHODS This single-center retrospective study was conducted in 252 patients divided into two groups: infected tibial nonunion (67 patients) and aseptic tibial nonunion (185 patients). The preoperative clinical biomarkers included D-dimer, fibrinogen, albumin, globulin, total protein, and C-reactive protein (CRP) levels; albumin-to-globulin ratio (AGR); erythrocyte sedimentation rate (ESR); and white blood cell (WBC) count. Receiver operating characteristic (ROC) curves, sensitivity, and specificity were utilized to compare the biomarkers' diagnostic potential. RESULTS The area under the curve (AUC) values for fibrinogen and AGR were 0.829 and 0.821, respectively, suggesting similarly good diagnostic potentials for infected tibial nonunion. Fibrinogen and AGR were better diagnostic biomarkers for infected tibial nonunion than the WBC count; ESR; D-dimer, albumin, globulin, CRP, and total protein levels, whose AUC values were 0.623, 0.684, 0.741, 0.797, 0.765, 0.715, and 0.554, respectively. The sensitivity and specificity of fibrinogen with a cut-off value of 3.35 g/L were 71.64% and 84.86%, respectively. The corresponding values for AGR with a cut-off value of 1.33 were 73.13% and 86.49%. Moreover, the fibrinogen-AGR (FAGR), i.e., the combination of fibrinogen and AGR, had the highest diagnostic accuracy for infected tibial nonunion (AUC = 0.906). The optimal FAGR cut-off was 2.69, with fair sensitivity (74.63%) but the highest specificity (94.59%). CONCLUSION Fibrinogen, AGR, and FAGR are promising biomarkers for the diagnosis of infected tibial nonunion.
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Affiliation(s)
- Zhen Wang
- Department of Orthopedic Surgery, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, China
| | - Haijun Mao
- Department of Orthopedic Surgery, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, China
| | - Guangyue Xu
- Department of Orthopedic Surgery, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, China.
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Wang Z, Mao H, Xu G. Combination of albumin-to-globulin ratio and plasma fibrinogen is a sensitive tool for preoperative screening of infected nonunion in patients undergoing reoperation after open reduction and internal fixation: a retrospective study. J Orthop Surg Res 2022; 17:471. [PMID: 36309703 PMCID: PMC9618180 DOI: 10.1186/s13018-022-03363-3] [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] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Accepted: 10/21/2022] [Indexed: 11/10/2022] Open
Abstract
Background Accurate preoperative diagnosis of infected nonunion remains a challenge. Here, we evaluated the diagnostic potential of novel biomarkers for infected nonunion. Methods A cohort of 275 patients who underwent surgery for suspected septic nonunion after open reduction and internal fixation were enrolled. Preoperatively analyzed clinical parameters included white blood cell (WBC) count, C-reactive protein (CRP), erythrocyte sedimentation rate (ESR), albumin, globulin, albumin-to-globulin ratio (AGR), plasma D-dimer, plasma fibrinogen, platelet count (PC), monocyte-lymphocyte ratio (MLR), neutrophil–lymphocyte ratio (NLR), and platelet-to-lymphocyte ratio (PLR). Receiver operating characteristic (ROC) curves, sensitivity, and specificity were utilized to compare the diagnostic potential of those biomarkers. Results The WBC count and levels of CRP, ESR, NLR, MLR, PLR, PC, plasma D-dimer, plasma fibrinogen, and globulin in infected nonunion patients were significantly higher (p < 0.05) than those in aseptic patients. The albumin and AGR levels of the infected nonunion group were significantly lower (p < 0.05) than the aseptic group. The ROC curve analysis showed that the diagnostic accuracy of AGR and plasma fibrinogen was good. The combination of AGR with plasma fibrinogen had the highest area under the curve (AUC) (0.916). The sensitivity and specificity were 70.27% and 91.04% for AGR, and 67.57% and 84.08% for plasma fibrinogen, respectively. The combination of AGR with plasma fibrinogen showed a sensitivity of 86.49% and specificity of 92.54%. In patients with comorbidities, the diagnostic accuracy of the combination of AGR with plasma fibrinogen was also good. Conclusions AGR and plasma fibrinogen are promising biomarkers to improve the diagnosis of infected nonunion. The combination of AGR with plasma fibrinogen is a sensitive tool for screening infected nonunion.
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QIN Z, Liu K, Xu X, Li T, Ge Y, Wu B, Xing C, Mao H. POS-044 INCIDENCE, PREDICTORS, AND CLINICAL OUTCOME OF ACUTE KIDNEY INJURY IN PATIENTS TREATED WITH PD-1 INHIBITORS: A SINGLE CENTER OBSERVATIONAL STUDY. Kidney Int Rep 2022. [DOI: 10.1016/j.ekir.2022.01.052] [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: 11/27/2022] Open
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DIAO X, Zheng Z, Yi C, Cao P, Ye H, Liu R, Lin J, Chen W, Mao H, Huang F, Yang X. POS-680 ASSOCIATION OF ABNORMAL IRON STATUS WITH THE OCCURRENCE AND PROGNOSIS OF PERITONEAL DIALYSIS-RELATED PERITONITIS. Kidney Int Rep 2022. [DOI: 10.1016/j.ekir.2022.01.714] [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] Open
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LIU R, Ye H, Peng Y, Yi C, Lin J, Wu H, Diao X, Huang X, Mao H, Huang F, Yu X, Yang X. POS-702 INCREMENTAL PERITONEAL DIALYSIS WAS ASSOCIATED WITH BETTER SURVIVAL OUTCOMES AT THE INITIAL 6 YEARS OF PERITONEAL DIALYSIS: A PROPENSITY-MATCHED COHORT STUDY. Kidney Int Rep 2022. [DOI: 10.1016/j.ekir.2022.01.736] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
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Qiao J, Mao H, Wen L, Xu L, Zhu Z, Qiu Y, Xiong J, Wang S. Reconstruction of Soft Tissue Defect With a Free Vascularized Anterolateral Thigh Flap After Resection of Soft Tissue Sarcoma in Extremities. Orthop Surg 2021; 14:215-220. [PMID: 34898047 PMCID: PMC8867411 DOI: 10.1111/os.12840] [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] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Revised: 09/14/2020] [Accepted: 09/28/2020] [Indexed: 01/12/2023] Open
Abstract
Objective This study aims to determine outcomes and complications in functional reconstruction of soft tissue defects after surgical resection for soft tissue sarcomas (STSs) of extremities. Methods A retrospective chart review was performed on patients with STSs of extremities from May 2015 to April 2019 who underwent radical resection of STSs and reconstruction of soft tissue defect with free vascularized anterolateral thigh flap (FVALTP). A minimum 3‐month follow‐up was required for all the patients. Patient demographics and comorbidities, flap characteristics, postoperative complications, and time to heal were recorded. The functional outcomes of the reconstructed limbs were assessed by the Musculoskeletal Tumour Society(MSTS) scoring system. Results A total of 11 patients (four males and seven females) were included in the study. The mean age was 62 years (range: 29–84 years). The mean surface area was 151.4 cm2 (range: from 64 cm2 to 418cm2). The mean operation time was 126 min (range: 95–296 min). The mean follow‐up was 17.5 months (range: 6–34 months). The mean score of MSTS at last follow‐up was 26.2 (range: 12–29). Incision healed by first intention in eight patients. Incision healed by second intention in three patients. A patient who had received preoperative radiotherapy experienced delayed union. After debridement, the patient successfully got union. Another two patients experienced marginal necrosis of flap due to vascular crisis. After 3‐week dressing changes, the patients also got satisfactory union. One case suffered from vascular crisis during surgery in which the procedure was changed into skin grafting to cover resection site. Conclusion FVALTP technique can be effectively applied to the reconstruction of soft tissue defect after STSs resection. The short‐term follow‐up indicated satisfactory functional outcome and low incidence of previously known complications. It was necessary to further validate its efficacy in reconstruction of soft tissue defect after malignant extremity soft tissue sarcoma resection.
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Affiliation(s)
- Jun Qiao
- Department of Orthopedic Surgery, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China
| | - Haijun Mao
- Department of Orthopedic Surgery, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China
| | - Li Wen
- Department of Orthopedic Surgery, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China
| | - Leilei Xu
- Department of Orthopedic Surgery, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China
| | - Zezhang Zhu
- Department of Orthopedic Surgery, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China
| | - Yong Qiu
- Department of Orthopedic Surgery, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China
| | - Jin Xiong
- Department of Orthopedic Surgery, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China
| | - Shoufeng Wang
- Department of Orthopedic Surgery, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China
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Chen B, Xi S, El-Senousey HAK, Zhou M, Cheng D, Chen K, Wan L, Xiong T, Liao M, Liu S, Mao H. Deletion in KRT75L4 linked to frizzle feather in Xiushui Yellow Chickens. Anim Genet 2021; 53:101-107. [PMID: 34904261 DOI: 10.1111/age.13158] [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] [Accepted: 11/17/2021] [Indexed: 11/30/2022]
Abstract
Bird feathers are the product of interactions between natural and artificial selection. Feather-related traits are important for chicken selection and breeding. Frizzle feather is characterized by the abnormally development of feathers in chickens. In the current study, frizzle feather characteristics were observed in a local breed called Xiushui Yellow Chicken in Jiangxi, China. To determine the molecular mechanisms that underlie frizzle feather in Xiushui Yellow Chicken, four populations of three breeds (Xiushui Yellow Chicken with frizzle feathers, Xiushui Yellow Chicken with normal feathers, Guangfeng White-Ear Yellow Chicken, and Ningdu Yellow Chicken) were selected for whole-genome resequencing. Using a comparative genome strategy and genome-wide association study, a missense mutation (g.5281494A>G) and a 15-bp deletion (g.5285437-5285451delGATGCCGGCAGGACG) in KRT75L4 were identified as candidate mutations associated with frizzle feather in Xiushui Yellow Chicken. Based on genotyping performed in a large Xiushui Yellow Chicken population, the g.5285437-5285451delGATGCCGGCAGGACG mutation in KRT75L4 was confirmed as the putative causative mutation of frizzle feather. These results deepen the understanding of the molecular mechanisms responsible for frizzle feather, as well as facilitating the molecular detection and selection of the feather phenotype in Xiushui Yellow Chickens.
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Affiliation(s)
- B Chen
- College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang, Jiangxi, 330045, China
| | - S Xi
- College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang, Jiangxi, 330045, China.,Jiangxi Biotech Vocational College, Nanchang, Jiangxi, 330200, China
| | - H A K El-Senousey
- Department of Animal Production, Faculty of Agriculture, Cairo University, Giza, 12613, Egypt
| | - M Zhou
- College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang, Jiangxi, 330045, China
| | - D Cheng
- College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang, Jiangxi, 330045, China
| | - K Chen
- College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang, Jiangxi, 330045, China
| | - L Wan
- College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang, Jiangxi, 330045, China
| | - T Xiong
- College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang, Jiangxi, 330045, China
| | - M Liao
- School of Foreign Languages, Jiangxi Agricultural University, Nanchang, Jiangxi, 330045, China
| | - S Liu
- College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang, Jiangxi, 330045, China
| | - H Mao
- College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang, Jiangxi, 330045, China
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Mendell J, Shieh P, Sahenk Z, Lehman K, Lowes L, Reash N, Iammarino M, Alfano L, Powers B, Woods J, Skura C, Mao H, Staudt L, Potter R, Griffin D, Lewis S, Hu L, Upadhyay S, Singh T, Rodino-Klapac L. CLINICAL TRIAL HIGHLIGHTS. Neuromuscul Disord 2021. [DOI: 10.1016/j.nmd.2021.07.383] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Szafranska K, Holte CF, Kruse LD, Mao H, Øie CI, Szymonski M, Zapotoczny B, McCourt PAG. Quantitative analysis methods for studying fenestrations in liver sinusoidal endothelial cells. A comparative study. Micron 2021; 150:103121. [PMID: 34560521 DOI: 10.1016/j.micron.2021.103121] [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: 03/28/2021] [Revised: 07/01/2021] [Accepted: 07/14/2021] [Indexed: 12/26/2022]
Abstract
Liver Sinusoidal Endothelial Cells (LSEC) line the hepatic vasculature providing blood filtration via transmembrane nanopores called fenestrations. These structures are 50-300 nm in diameter, which is below the resolution limit of a conventional light microscopy. To date, there is no standardized method of fenestration image analysis. With this study, we provide and compare three different approaches: manual measurements, a semi-automatic (threshold-based) method, and an automatic method based on user-friendly open source machine learning software. Images were obtained using three super resolution techniques - atomic force microscopy (AFM), scanning electron microscopy (SEM), and structured illumination microscopy (SIM). Parameters describing fenestrations such as diameter, area, roundness, frequency, and porosity were measured. Finally, we studied the user bias by comparison of the data obtained by five different users applying provided analysis methods.
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Affiliation(s)
- K Szafranska
- Department of Medical Biology, Vascular Biology Research Group, University of Tromsø (UiT), The Arctic University of Norway, Norway; Centre for Nanometer-Scale Science and Advanced Materials, NANOSAM, Faculty of Physics, Astronomy, and Applied Computer Science, Jagiellonian University, Krakow, Poland.
| | - C F Holte
- Department of Medical Biology, Vascular Biology Research Group, University of Tromsø (UiT), The Arctic University of Norway, Norway
| | - L D Kruse
- Department of Medical Biology, Vascular Biology Research Group, University of Tromsø (UiT), The Arctic University of Norway, Norway
| | - H Mao
- Department of Medical Biology, Vascular Biology Research Group, University of Tromsø (UiT), The Arctic University of Norway, Norway
| | - C I Øie
- Department of Medical Biology, Vascular Biology Research Group, University of Tromsø (UiT), The Arctic University of Norway, Norway
| | - M Szymonski
- Centre for Nanometer-Scale Science and Advanced Materials, NANOSAM, Faculty of Physics, Astronomy, and Applied Computer Science, Jagiellonian University, Krakow, Poland
| | - B Zapotoczny
- Department of Medical Biology, Vascular Biology Research Group, University of Tromsø (UiT), The Arctic University of Norway, Norway; Institute of Nuclear Physics, Polish Academy of Sciences, 31-342, Krakow, Poland
| | - P A G McCourt
- Department of Medical Biology, Vascular Biology Research Group, University of Tromsø (UiT), The Arctic University of Norway, Norway
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Liu Y, Liao X, Li L, Mao H. Discrete Element Modelling of the Mechanical Behavior of Sand-Rubber Mixtures under True Triaxial Tests. Materials (Basel) 2020; 13:ma13245716. [PMID: 33333864 PMCID: PMC7765338 DOI: 10.3390/ma13245716] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Revised: 12/03/2020] [Accepted: 12/07/2020] [Indexed: 11/20/2022]
Abstract
Sand–rubber mixtures (SRMs) consisting of stiff sand particles and soft rubber particles are typical binary mixture materials that possess a variety of complicated properties. The complexity of the properties of sand–rubber mixtures is increased when complex stress path is involved. This study investigates the mechanical behavior of sand–rubber mixtures under generalized loading conditions using the discrete element method. A series of numerical true triaxial shear tests were conducted on pure sand and sand–rubber mixtures. The effect of rubber content and loading path on both of the macroscopic and microscopic performances of sand–rubber mixtures was investigated, and the associated microscale mechanism was also discussed. Numerical simulations show that the relationship between the peak friction angle ϕp and the intermediate principal stress ratio b is influenced by the addition of rubber particles, and a suggested explanation of this phenomenon is that the rubber particles mainly affect the inherent stability of the strong network. Particle-scale observations, including the coordinate number, the proportion of strong contacts, and the fabric anisotropy, are also presented in this study. Microscopic results confirm the explanation above, and explore the force transmission characteristics of sand–rubber mixtures under generalized loading conditions. This research can provide a reference for the constitutive model development of sand–rubber mixtures.
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Affiliation(s)
- Yiming Liu
- School of Civil Engineering, Architecture and Environment, Hubei University of Technology, Wuhan 430068, China; (Y.L.); (X.L.)
| | - Xinchao Liao
- School of Civil Engineering, Architecture and Environment, Hubei University of Technology, Wuhan 430068, China; (Y.L.); (X.L.)
| | - Lihua Li
- School of Civil Engineering, Architecture and Environment, Hubei University of Technology, Wuhan 430068, China; (Y.L.); (X.L.)
- Correspondence:
| | - Haijun Mao
- Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China;
- The State Key Laboratory of Geomechanics and Geotechnical Engineering, Wuhan 430071, China
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Mao H, Xu G. Protective effect and mechanism of microRNA-146a on ankle fracture. Exp Ther Med 2020; 20:3. [PMID: 32934668 PMCID: PMC7471879 DOI: 10.3892/etm.2020.9131] [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: 08/13/2018] [Accepted: 01/10/2020] [Indexed: 11/29/2022] Open
Abstract
The present study investigated the expression and role of microRNA-146a (miR-146a) on ankle fracture, and explored the underlying mechanism. miR-146a levels in the blood of patients with ankle fracture was measured using reverse transcription-quantitative PCR (RT-qPCR). Expression of pro-inflammatory factors in the peripheral blood of ankle fracture patients was also detected using ELISA. Oxidative stress biomarkers including malondialdehyde (MDA), superoxide dismutase (SOD) and catalase (CAT) were additionally investigated. The role of miR-146a in ankle fracture was investigated in vitro where MG-63 cells were transfected with miR-146a mimic or miR-146a inhibitor for 2 h, then treated with 1 µg/ml bradykinin for 24 h. An MTT assay was then performed to assess cell viability and pro-inflammatory factors were detected via RT-qPCR and western blot analysis. Finally, activation of the TNF receptor associated factor 6 (TRAF6)/NF-κB pathway was determined via western blotting and RT-qPCR. The results demonstrated that miR-146a was significantly downregulated in the blood of patients with ankle fracture. The protein levels of tumor necrosis factor (TNF-α), interleukin (IL)-1β and IL-6 were significantly upregulated in patients with ankle fracture. In addition, MDA content significantly increased, and SOD and CAT activity significantly decreased in patients with ankle fracture. In vitro experiments demonstrated that miR-146a overexpression significantly enhanced cell viability. miR-146a mimic suppressed BK-induced upregulation of TNF-α, IL-1β, IL-6 and MDA, and increased SOD and CAT activity. Finally, miR-146a mimic inhibited activation of the TRAF6/NF-κB pathway whilst miR-146a inhibitor had the opposite effect. In conclusion, miR-146a may be a potential therapeutic target for the treatment of ankle fracture by inhibiting the inflammatory response and attenuating oxidative stress.
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Affiliation(s)
- Haijun Mao
- Department of Orthopedics, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, Jiangsu 210008, P.R. China
| | - Guangyue Xu
- Department of Orthopedics, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, Jiangsu 210008, P.R. China
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14
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Xu L, Wen L, Qiao J, Zhu Z, Qiu Y, Xiong J, Mao H, Wang S. Clinical Outcome of Free Vascularized Fibula Graft in the Surgical Treatment of Extremity Osteosarcoma. Orthop Surg 2020; 12:727-733. [PMID: 32412695 PMCID: PMC7307252 DOI: 10.1111/os.12646] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Revised: 01/23/2020] [Accepted: 02/05/2020] [Indexed: 11/30/2022] Open
Abstract
Objective To determine the clinical outcome and complications associated with use of free vascularized fibular graft (FVFG) in the resection and reconstruction of extremity osteosarcoma (OS). Methods This is a retrospective study recruiting a consecutive series of 18 patients who had undergone resection of extremity OS between May 2009 and June 2017 in our clinic center. Reconstruction of the bone defect with FVFG was performed for each patient. Surgery‐related complications and time of bone union were recorded at the follow‐up visit. The functional outcome of the reconstructed limb was assessed with the musculoskeletal tumor society (MSTS) scoring system. Patients were further classified into low extremity group and upper extremity group according to the tumor location. The Student t‐test was used to compare the surgical outcome between the two subgroups. Results There were 11 males and seven females with an average age of 25.9 ± 14.2 years. The mean length of the bone resection was 11.9 ± 4.1 cm. The mean follow‐up duration was 3.1 ± 1.2 years. As for tumor location, six cases were located in the femur, five in the tibia, four in the humerus, two in the ulna, and one in the radius. All the patients had successful graft healing at an average of 4.9 months after surgery. At the 2‐year follow‐up, an excellent functional outcome was observed in 88.9% of the patients (n = 16). The mean score of MSTS was 27.0 ± 4.6. Screw loosening and autograft fracture were observed in one patient with femur tumor, who had a low MSTS score of 11. Besides, there were three cases with delayed incision healing. Patients with lower extremity OS were found to have significantly longer duration of hospital stay and more blood loss than those with upper extremity OS. The incidence of postoperative complication was higher in the lower extremity group but with marginal significance (0% vs 36.3%, P = 0.1). There was no significant difference regarding time to bone union and the functional outcome as indicated by MSTS score. Conclusions FVFG technique can be effectively applied to the reconstruction of bone defects after OS resection with satisfactory functional outcome and low incidence of complications.
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Affiliation(s)
- Leilei Xu
- Department of Orthopedic Surgery, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China
| | - Li Wen
- Department of Orthopedic Surgery, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China
| | - Jun Qiao
- Department of Orthopedic Surgery, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China
| | - Zezhang Zhu
- Department of Orthopedic Surgery, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China
| | - Yong Qiu
- Department of Orthopedic Surgery, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China
| | - Jin Xiong
- Department of Orthopedic Surgery, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China
| | - Haijun Mao
- Department of Orthopedic Surgery, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China
| | - Shoufeng Wang
- Department of Orthopedic Surgery, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China
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15
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GUO L, Huang N, Mao H, Yu X. SAT-284 GENDER DISCREPANCY IN ASSOCIATION WITH ALL-CAUSE MORTALITY IN YOUNG PRITONEAL DIALYSIS PATIENTS. Kidney Int Rep 2020. [DOI: 10.1016/j.ekir.2020.02.302] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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16
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Shen J, Li W, Wang Y, Li H, Wang J, Zhong Z, Kong Y, Huang F, Yu X, Mao H. SAT-293 HIGHER SERUM PHOSPHORUS PREDICTS RESIDUAL RENAL FUNCTION LOSS IN MALE BUT NOT FEMALE INCIDENT PERITONEAL DIALYSIS PATIENTS. Kidney Int Rep 2020. [DOI: 10.1016/j.ekir.2020.02.311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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17
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FAN L, Mao H, Yagui Q, Wei S, Jianbo L, Hao Z, Yunhua L, Fei X, Xinzhou Z, Ping F, Yonggui W, Li H, Jie D, Xuemei L, Xueqing Y. SAT-269 SINGLE OR DUAL USE RENIN-ANGIOTENSIN SYSTEM INHIBITORS ON RESIDUAL RENAL FUNCTION IN PATIENTS RECEIVING CONTINUOUS AMBULATORY PERITONEAL DIALYSIS. Kidney Int Rep 2020. [DOI: 10.1016/j.ekir.2020.02.286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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18
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Mao H, Xu X, Liu H, Cao H, Dong X, Xu N, Zou X, Yin Z. The temporal-spatial patterns, polymorphisms and association analysis with meat quality traits of FABP1 gene in domestic pigeons ( Columba livia). Br Poult Sci 2020; 61:232-241. [PMID: 32063032 DOI: 10.1080/00071668.2020.1724880] [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] [Indexed: 10/25/2022]
Abstract
1. Fatty acid-binding proteins (FABP) are members of lipid-binding proteins, which participate in the metabolism and intracellular transportation of lipids. This study was designed to investigate the expression patterns, polymorphisms and associations with meat quality traits of the FABP1 gene in pigeons. 2. The temporal-spatial expression patterns showed FABP1 was widely expressed in all eleven tissues from 0-4 weeks of age, the expression level in the liver was the highest, followed by the small intestine and subcutaneous fat. 3. Five novel SNPs were found; all of them were synonymous and in Hardy-Weinberg equilibrium. Association analysis revealed that for the SNP of G161C, the AB and BB genotypes had higher (P ≤ 0.01) inosinic acid concentrations in breast muscle than the AA genotype. The BB genotype showed the highest (P < 0.01) intramuscular fat among the three genotypes, and significantly greater FABP1 mRNA levels were observed in the breast muscle of the BB genotype than in the AA and AB genotypes (P < 0.01). In the SNP C1376T, the AB and BB genotypes showed higher (P < 0.01) intramuscular fat than the AA genotype, and the relative mRNA expression level of the BB (P < 0.01) and AB (P < 0.05) genotypes was higher than that of the AA genotype in breast muscle. Correlation analysis implied that the FABP1 mRNA expression level was closely related to the inosinic acid (P < 0.05) and intramuscular fat content (P < 0.01). Oil red O staining of frozen sections of breast muscle on d 28 for SNPs G161C and C1376T also indicated that the BB genotype had the highest intramuscular fat content in both SNPs. In addition, correlation analysis implied the FABP1 mRNA expression level was closely related to inosinic acid (P < 0.05) and intramuscular fat content (P < 0.01). 4. The results suggested that FABP1 could be a potential candidate gene in marker-assisted selection for breeding pigeons with high-quality meat.
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Affiliation(s)
- H Mao
- Animal Science College, Zhejiang University , Hangzhou, China
| | - X Xu
- Animal Science College, Zhejiang University , Hangzhou, China
| | - H Liu
- Animal Science College, Zhejiang University , Hangzhou, China
| | - H Cao
- Animal Science College, Zhejiang University , Hangzhou, China
| | - X Dong
- Animal Science College, Zhejiang University , Hangzhou, China
| | - N Xu
- Animal Science College, Zhejiang University , Hangzhou, China
| | - X Zou
- Animal Science College, Zhejiang University , Hangzhou, China
| | - Z Yin
- Animal Science College, Zhejiang University , Hangzhou, China
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Lei Y, Shu HK, Tian S, Wang T, Liu T, Mao H, Shim H, Curran WJ, Yang X. Pseudo CT Estimation using Patch-based Joint Dictionary Learning. Annu Int Conf IEEE Eng Med Biol Soc 2019; 2018:5150-5153. [PMID: 30441499 DOI: 10.1109/embc.2018.8513475] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Magnetic resonance (MR) simulators have recently gained popularity; it avoids the unnecessary radiation exposure associated with Computed Tomography (CT) when used for radiation therapy planning. We propose a method for pseudo CT estimation from MR images based on joint dictionary learning. Patient-specific anatomical features were extracted from the aligned training images and adopted as signatures for each voxel. The most relevant and informative features were identified to train the joint dictionary learning-based model. The well-trained dictionary was used to predict the pseudo CT of a new patient. This prediction technique was validated with a clinical study of 12 patients with MR and CT images of the brain. The mean absolute error (MAE), peak signal-to-noise ratio (PSNR), normalized cross correlation (NCC) indexes were used to quantify the prediction accuracy. We compared our proposed method with a state-of-the-art dictionary learning method. Overall our proposed method significantly improves the prediction accuracy over the state-of-the-art dictionary learning method. We have investigated a novel joint dictionary Iearning- based approach to predict CT images from routine MRIs and demonstrated its reliability. This CT prediction technique could be a useful tool for MRI-based radiation treatment planning or attenuation correction for quantifying PET images for PET/MR imaging.
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20
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Bai H, Jia W, Jin X, Mao H, Wu D, Chen R, Xia X, Wu H. P2.14-38 ATAD2B-ALK, a Novel Fusion in Lung Adenocarcinoma Identified Using Next-Generation Sequencing (NGS). J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.1823] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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21
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Yang X, Zeng Q, Lei Y, Tian S, Wang T, Dong X, Jani A, Mao H, Curran W, Patel P, Liu T. MRI-US Registration Using Label-driven Weakly-supervised Learning for Multiparametric MRI-guided HDR Prostate Brachytherapy. Int J Radiat Oncol Biol Phys 2019. [DOI: 10.1016/j.ijrobp.2019.06.911] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [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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22
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Mao H, Wang X, Fan Y, Cheng D, Chen K, Liu S, Xi S, Wan L, Li X, Ren J. Whole-genome SNP data unravel population structure and signatures of selection for black plumage of indigenous chicken breeds from Jiangxi province, China. Anim Genet 2019; 50:475-483. [PMID: 31305959 DOI: 10.1111/age.12827] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/16/2019] [Indexed: 01/23/2023]
Abstract
Ten indigenous chicken breeds were originally distributed in Jiangxi Province, China, and they define a critical component of Chinese chicken genetic resources. We have investigated the population genetics of seven Jiangxi chicken breeds using 600K chicken BeadChip SNP data. To provide a genome-wide perspective for the population structure of all 10 Jiangxi chicken breeds, we herein genotyped 78 additional individuals from the seven breeds and 63 chickens from three uninvestigated breeds-Yugan Black (YG), Nancheng Black (NC) and Wanzai Yellow using 55K chicken SNP arrays. We then explored merged data of 17 101 SNPs from 235 individuals to infer the population structure of the 10 breeds. We showed that NC and YG are two regional populations of the same breed, as individuals from the two populations clustered together to form a branch separate from the other breeds in the neighbor-joining tree, they always grouped together in multidimensional principal component analyses and they displayed an identical pattern of ancestral lineage composition. Hence, NC and YG should be considered a single breed in the state-supported conservation scheme. Moreover, we conducted a genome scan for signatures of selection for black plumage. bayescan and hapflk analyses of two contrasting groups (three black-feathered breeds vs. six non-black-feathered breeds) consistently detected 25 putative regions under selection. Nine pigmentation- associated genes (DCT, SLC24A5, SLC30A4, MYO5A, CYP19A1, NADK2, SLC45A2, GNAQ and DCP2) reside within these regions, and these genes are interesting candidates for black plumage and provide a starting point for further identification of causative mutations for black feathers in chicken.
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Affiliation(s)
- H Mao
- College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang, 330045, Jiangxi, China
| | - X Wang
- College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang, 330045, Jiangxi, China
| | - Y Fan
- Department of Animal Science, Jiangxi Biotech Vocational College, Nanchang, 330200, Jiangxi, China
| | - D Cheng
- College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang, 330045, Jiangxi, China
| | - K Chen
- College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang, 330045, Jiangxi, China
| | - S Liu
- College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang, 330045, Jiangxi, China
| | - S Xi
- College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang, 330045, Jiangxi, China
| | - L Wan
- College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang, 330045, Jiangxi, China
| | - X Li
- Unit of Animal Husbandry, Agricultural Bureau of Dongxiang District, Fuzhou, 331800, Jiangxi, China
| | - J Ren
- College of Animal Science, South China Agricultural University, 510642, Guangzhou, China
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23
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WANG Y, peng X, Li H, Zhou Y, Mao H. SUN-160 ATG5-mediated autophagy suppresses NF-κB signaling to limit epithelial inflammatory response to kidney injury. Kidney Int Rep 2019. [DOI: 10.1016/j.ekir.2019.05.561] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
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24
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Saleh M, Cassier P, Eberst L, Naik G, II VM, Pant S, Terret C, Gao L, Long A, Mao H, McNeely S, Carlesi R, Fu S. Ramucirumab plus merestinib in previously treated metastatic colorectal cancer: safety, pharmacokinetic, and preliminary efficacy findings from a Phase 1 study. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz157.007] [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: 11/13/2022] Open
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25
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MA F, Mao H, Liu H, Yang L, Chen J, Wang Y, Zhan Y. MON-002 YI QI QING RE GAO, A TRADITIONAL CHINESE HERBAL FORMULA, ORCHESTRATES ACTIN CYTOSKELETON REORGANIZATION INDUCED BY PUROMYCIN AMINONUCLEOSIDE IN PODOCYTES VIA RHOA/ROCK SIGNALING PATHWAY. Kidney Int Rep 2019. [DOI: 10.1016/j.ekir.2019.05.756] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
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26
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Gu Y, Xu K, Song C, Zhong X, Zhang H, Mao H, Saleem MS, Sun J, Liu W, Zhang Z, Pan F, Zhu J. Oxygen-Valve Formed in Cobaltite-Based Heterostructures by Ionic Liquid and Ferroelectric Dual-Gating. ACS Appl Mater Interfaces 2019; 11:19584-19595. [PMID: 31056893 DOI: 10.1021/acsami.9b02442] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Manipulation of oxygen vacancies via electric-field-controlled ionic liquid gating has been reported in many model systems within the emergent fields of oxide electronics and iontronics. It is then significant to investigate the oxygen vacancy formation/annihilation and migration across an additional ferroelectric layer with ionic liquid gating. Here, we report that via a combination of ionic liquid and ferroelectric gating, the remote control of oxygen vacancies and magnetic phase transition can be achieved in SrCoO2.5 films capped with an ultrathin ferroelectric BaTiO3 layer at room temperature. The ultrathin BaTiO3 layer acts as an atomic oxygen valve and is semitransparent to oxygen-ion transport due to the competing interaction between vertical electron tunneling and ferroelectric polarization plus surface electrochemical changes in itself, thus resulting in the striking emergence of new mixed-phase SrCoO x. The lateral coexistence of brownmillerite phase SrCoO2.5 and perovskite phase SrCoO3-δ was directly observed by transmission electron microscopy. Besides the fundamental significance of long-range interaction in ionic liquid gating, the ability to control the flow of oxygen ions across the heterointerface by the oxygen valve provides a new approach on the atomic scale for designing multistate memories, sensors, and solid-oxide fuel cells.
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Affiliation(s)
- Youdi Gu
- Shenyang National Laboratory for Materials Science , Institute of Metal Research, University of Chinese Academy of Sciences, Chinese Academy of Sciences , Shenyang 110016 , China
| | | | | | | | - Hongrui Zhang
- Beijing National Laboratory for Condensed Matter Physics , Institute of Physics, University of Chinese Academy of Science, Chinese Academy of Sciences , Beijing 100190 , China
| | - Haijun Mao
- College of Aerospace Science and Engineering , National University of Defense Technology , Changsha 410073 , China
| | | | - Jirong Sun
- Beijing National Laboratory for Condensed Matter Physics , Institute of Physics, University of Chinese Academy of Science, Chinese Academy of Sciences , Beijing 100190 , China
| | - Wei Liu
- Shenyang National Laboratory for Materials Science , Institute of Metal Research, University of Chinese Academy of Sciences, Chinese Academy of Sciences , Shenyang 110016 , China
| | - Zhidong Zhang
- Shenyang National Laboratory for Materials Science , Institute of Metal Research, University of Chinese Academy of Sciences, Chinese Academy of Sciences , Shenyang 110016 , China
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27
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Wang FP, Fan YQ, Liu T, Wang G, Pu Y, Li SY, Mao H. Effect of Aminophylline on Mouse Bone Marrow-Derived Eosinophils In Vitro. B33. ASTHMA: MECHANISMS OF DISEASE II 2019. [DOI: 10.1164/ajrccm-conference.2019.199.1_meetingabstracts.a2938] [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] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- F.-P. Wang
- West China Hospital, Sichuan University, Chengdu, China
| | - Y.-Q. Fan
- West China Hospital, Sichuan University, Chengdu, China
| | - T. Liu
- West China Hospital, Sichuan University, Chengdu, China
| | - G. Wang
- West China Hospital, Sichuan University, Chengdu, China
| | - Y. Pu
- West China Hospital, Sichuan University, Chengdu, China
| | - S.-Y. Li
- First Affiliated Hospital of Henan College of Traditional Chinese Medicine, Zhengzhou, China
| | - H. Mao
- West China Hospital, Sichuan University, Chengdu, China
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Liu T, Feng YH, Wang FP, Mao H. Defining the Preliminary Function of Siglec-F Expressed on Mouse Alveolar Macrophages In Vitro. D33. PATHOLOGIC MECHANISMS IN PULMONARY INFECTIONS 2019. [DOI: 10.1164/ajrccm-conference.2019.199.1_meetingabstracts.a6174] [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] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- T. Liu
- Department of Respiratory and critical Care Medicine, West China Hospital, Sichuan University, Chengdu 610041, China, Chengdu, China
| | - Y.-H. Feng
- Department of Respiratory Medicine, the People’s Hospital of Deyang, Deyang 618000, China, Deyang, China
| | - F.-P. Wang
- Department of Respiratory and critical Care Medicine, West China Hospital, Sichuan University, Chengdu 610041, China, Chengdu, China
| | - H. Mao
- Department of Respiratory and critical Care Medicine, West China Hospital, Sichuan University, Chengdu 610041, China, Chengdu, China
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29
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Yang Y, Chen Y, Chen K, Wei D, Li P, Zeng W, Pei J, Mao H, Jia J, Zhang Z. Increased intrinsic connectivity for structural atrophy and functional maintenance after acute ischaemic stroke. Eur J Neurol 2019; 26:935-942. [PMID: 30681762 DOI: 10.1111/ene.13913] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2018] [Accepted: 01/21/2019] [Indexed: 12/18/2022]
Abstract
BACKGROUND AND PURPOSE Significant clinical recovery has commonly been observed in ischaemic stroke patients with irreversible brain structural damage. However, brain mechanisms that help to maintain clinical function remain unclear. METHODS Sixty-two patients with acute ischaemic stroke underwent longitudinal clinical assessments and magnetic resonance scanning. The clinical recovery trajectory was evaluated using a hierarchical linear model and intrinsic connectivity was analysed with a seed-based approach to examine its changing pattern based on the regional volume changes calculated using voxel-wise analysis. RESULTS It was observed that clinical outcome measures improved mainly in the short-term period (baseline versus 3 weeks) and then remained stable. Grey matter volume was reduced significantly in the bilateral caudate over the entire 3-year long-term period. Significant intrinsic connectivity increases were observed in the caudate-middle cingulum over the short-term period and in the caudate-precuneus and caudate-calcarine over the long-term period. Finally, it was found that increased caudate-calcarine connectivity was associated with reduced right caudate volume, and a positive correlation was found between increased caudate-middle cingulum connectivity and the amount of modified Rankin score changes. CONCLUSIONS The increased intrinsic connectivity found in this study tends to be a compensatory mechanism for post-stroke structural damage, associated with clinical recovery. The study helps in understanding the significance of enhanced intrinsic connectivity in post-stroke long-term assessment and rehabilitation.
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Affiliation(s)
- Y Yang
- State Key Laboratory of Cognitive Neuroscience and Learning, Beijing Normal University, Beijing, China.,Beijing Ageing Brain Rejuvenation Initiative Centre, Beijing Normal University, Beijing, China
| | - Y Chen
- State Key Laboratory of Cognitive Neuroscience and Learning, Beijing Normal University, Beijing, China.,Beijing Ageing Brain Rejuvenation Initiative Centre, Beijing Normal University, Beijing, China
| | - K Chen
- Beijing Ageing Brain Rejuvenation Initiative Centre, Beijing Normal University, Beijing, China.,Banner Alzheimer's Institute, Phoenix, AZ, USA
| | - D Wei
- Beijing Ageing Brain Rejuvenation Initiative Centre, Beijing Normal University, Beijing, China.,Institute of Basic Research in Clinical Medicine, China Academy of Chinese Medical Sciences, Beijing, China
| | - P Li
- Laboratory Research Center of Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - W Zeng
- Department of Geriatric Neurology, Chinese PLA General Hospital, Beijing, China
| | - J Pei
- State Key Laboratory of Cognitive Neuroscience and Learning, Beijing Normal University, Beijing, China.,Beijing Ageing Brain Rejuvenation Initiative Centre, Beijing Normal University, Beijing, China
| | - H Mao
- State Key Laboratory of Cognitive Neuroscience and Learning, Beijing Normal University, Beijing, China.,Beijing Ageing Brain Rejuvenation Initiative Centre, Beijing Normal University, Beijing, China
| | - J Jia
- Department of Geriatric Neurology, Chinese PLA General Hospital, Beijing, China
| | - Z Zhang
- State Key Laboratory of Cognitive Neuroscience and Learning, Beijing Normal University, Beijing, China.,Beijing Ageing Brain Rejuvenation Initiative Centre, Beijing Normal University, Beijing, China
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30
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Chen L, Wang X, Cheng D, Chen K, Fan Y, Wu G, You J, Liu S, Mao H, Ren J. Population genetic analyses of seven Chinese indigenous chicken breeds in a context of global breeds. Anim Genet 2018; 50:82-86. [PMID: 30421435 DOI: 10.1111/age.12732] [Citation(s) in RCA: 14] [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] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/29/2018] [Indexed: 01/20/2023]
Abstract
Jiangxi province in China is rich in indigenous chicken breeds, which have diverse phenotypes and represent a valuable genetic resource for further genetic improvement of modern breeds. Here, we conducted a series of analyses to reveal genetic diversity, phylogenetic relationships and population structure of seven chicken breeds in Jiangxi province in the context of nine non-local chicken breeds, using 600K SNP data. We show that Jiangxi indigenous breeds have more abundant nucleotide diversity than do European local and commercial breeds. Among Jiangxi breeds, Dongxiang Blue-eggshell (DX) and Chongren Partride (CR) display remarkably reduced genetic diversity, as the two breeds exhibit increased inbreeding coefficients, runs of homozygosity, extent of linkage disequilibrium and reduced expected heterozygosity. DX, CR and Taihe Silkie (TH) represent three ancestral lineages of the Jiangxi chicken and display genetic differentiation from the other four Jiangxi breeds, which show a signature of admixture with European commercial breeds. These findings provide insight for the establishment of an efficient conservation program for Jiangxi chicken breeds. Considering the current status of genetic diversity and ancestral representativeness, particular attention should be paid to DX, CR and TH chickens.
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Affiliation(s)
- L Chen
- College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang, Jiangxi, 330045, China
| | - X Wang
- College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang, Jiangxi, 330045, China
| | - D Cheng
- College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang, Jiangxi, 330045, China
| | - K Chen
- College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang, Jiangxi, 330045, China
| | - Y Fan
- Department of Animal Science, Jiangxi Biotech Vocational College, Nanchang, Jiangxi, 330200, China
| | - G Wu
- Nanchang Municipal Center for Animal Disease Control and Prevention, Nanchang, Jiangxi, 330008, China
| | - J You
- College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang, Jiangxi, 330045, China
| | - S Liu
- College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang, Jiangxi, 330045, China
| | - H Mao
- College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang, Jiangxi, 330045, China
| | - J Ren
- College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang, Jiangxi, 330045, China
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Yang X, Lei Y, Wang T, Patel P, Jiang X, Liu T, Dhabaan A, Shim H, Mao H, Curran W, Jani A. MRI-Based Synthetic CT for Radiation Treatment of Prostate Cancer. Int J Radiat Oncol Biol Phys 2018. [DOI: 10.1016/j.ijrobp.2018.07.086] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Paz-Ares L, Planchard D, Yang J, Lee K, Garrido P, Park K, Kim J, Lee D, Mao H, Chao B, Yu H. MA26.10 CNS Activity of Ramucirumab in Combination with Osimertinib in Patients with Advanced T790M-Positive EGFR-Mutant NSCLC. J Thorac Oncol 2018. [DOI: 10.1016/j.jtho.2018.08.545] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Cao W, Liu X, Xu X, Zeng M, Sun B, Yu X, Wang N, Mao H, Zhang B, Yuan Y, Xing C. The Src homology and collagen A (ShcA) adaptor protein may participate in the pathogenesis of membranous lupus nephritis. Lupus 2018; 27:2014-2019. [PMID: 30189773 DOI: 10.1177/0961203318796295] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
The Src homology and collagen A (ShcA) adaptor protein that binds to tyrosine kinase receptors. ShcA plays a role in insulin signaling, stress resistance and energy metabolism. The 66-kDa Src homology 2 domain-containing protein (p66shc) belongs to the ShcA family and has been associated with reactive oxygen species (ROS); increased ROS is involved in the pathology of lupus nephritis (LN). However, whether ShcA can act as a biomarker for oxidative injury in LN is unknown. This study is aimed to investigate the ShcA expression in kidney tissues from patients presenting with LN and the association between ShcA expression and clinical parameters. Renal biopsy tissues were obtained from 62 LN, 20 primary membranous nephropathy (MN) and 10 other secondary MN patients. ShcA was measured by immunofluorescence. The expression of ShcA in the membranous lupus nephritis (class V) group showed a higher trend but there were no significant differences compared with pure mesangial disease (class II) and proliferative (Class III/IV) lupus nephritis. ShcA deposits were negative in primary and other secondary MN. ShcA might act as a new biomarker and a diagnostic tool to identify membranous lupus nephritis with other MN.
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Affiliation(s)
- W Cao
- Department of Nephrology, the First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - X Liu
- Department of Nephrology, the First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - X Xu
- Department of Nephrology, the First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - M Zeng
- Department of Nephrology, the First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - B Sun
- Department of Nephrology, the First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - X Yu
- Department of Nephrology, the First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - N Wang
- Department of Nephrology, the First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - H Mao
- Department of Nephrology, the First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - B Zhang
- Department of Nephrology, the First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Y Yuan
- Department of Nephrology, the First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - C Xing
- Department of Nephrology, the First Affiliated Hospital of Nanjing Medical University, Nanjing, China
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Sundaramurthy A, Skotak M, Alay E, Unnikrishnan G, Mao H, Duan X, Williams ST, Harding TH, Chandra N, Reifman J. Assessment of the Effectiveness of Combat Eyewear Protection Against Blast Overpressure. J Biomech Eng 2018; 140:2677751. [PMID: 29677280 DOI: 10.1115/1.4039823] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2017] [Indexed: 11/08/2022]
Abstract
It is unclear whether combat eyewear used by U. S. Service members is protective against blast overpressures (BOPs) caused by explosive devices. Here, we investigated the mechanisms by which BOP bypasses eyewear and increases eye surface pressure. We performed experiments and developed three-dimensional (3D) finite element (FE) models of a head form (HF) equipped with an advanced combat helmet (ACH) and with no eyewear, spectacles, or goggles in a shock tube at three BOPs and five head orientations relative to the blast wave. Overall, we observed good agreement between experimental and computational results, with average discrepancies in impulse and peak-pressure values of less than 15% over 90 comparisons. In the absence of eyewear and depending on the head orientation, we identified three mechanisms that contributed to pressure loading on the eyes. Eyewear was most effective at 0 deg orientation, with pressure attenuation ranging from 50 (spectacles) to 80% (goggles) of the peak pressures observed in the no-eyewear configuration. Spectacles and goggles were considerably less effective when we rotated the HF in the counter-clockwise direction around the superior-inferior axis of the head. Surprisingly, at certain orientations, spectacles yielded higher maximum pressures (80%) and goggles yielded larger impulses (150%) than those observed without eyewear. The findings from this study will aid in the design of eyewear that provides better protection against BOP.
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Affiliation(s)
- A Sundaramurthy
- Department of Defense, Biotechnology High Performance Computing Software Applications Institute, Telemedicine and Advanced Technology Research Center, U.S. Army Medical Research and Materiel Command, 504 Scott Street, Fort Detrick, MD 21702 e-mail:
| | - M Skotak
- Department of Biomedical Engineering, Center for Injury Biomechanics, Materials and Medicine, New Jersey Institute of Technology, University Heights, Newark, NJ 07102 e-mail:
| | - E Alay
- Department of Biomedical Engineering, Center for Injury Biomechanics, Materials and Medicine, New Jersey Institute of Technology, University Heights, Newark, NJ 07102 e-mail:
| | - G Unnikrishnan
- Department of Defense, Biotechnology High Performance Computing Software Applications Institute, Telemedicine and Advanced Technology Research Center, U.S. Army Medical Research and Materiel Command, 504 Scott Street, Fort Detrick, MD 21702 e-mail:
| | - H Mao
- Department of Defense, Biotechnology High Performance Computing Software Applications Institute, Telemedicine and Advanced Technology Research Center, U.S. Army Medical Research and Materiel Command, 504 Scott Street, Fort Detrick, MD 21702 e-mail:
| | - X Duan
- Department of Defense, Biotechnology High Performance Computing Software Applications Institute, Telemedicine and Advanced Technology Research Center, U.S. Army Medical Research and Materiel Command, 504 Scott Street, Fort Detrick, MD 21702 e-mail:
| | - S T Williams
- Visual Protection and Performance Division, U.S. Army Aeromedical Research Laboratory, Bldg. 6901, Farrel Road, Fort Rucker, AL 36362 e-mail:
| | - T H Harding
- Visual Protection and Performance Division, U.S. Army Aeromedical Research Laboratory, Bldg. 6901, Farrel Road, Fort Rucker, AL 36362 e-mail:
| | - N Chandra
- Department of Biomedical Engineering, Center for Injury Biomechanics, Materials and Medicine, New Jersey Institute of Technology, University Heights, Newark, NJ 07102 e-mail:
| | - J Reifman
- Department of Defense, Biotechnology High Performance Computing Software Applications Institute, Telemedicine and Advanced Technology Research Center, U.S. Army Medical Research and Materiel Command, 504 Scott Street, Fort Detrick, MD 21702 e-mail:
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Shen Y, Zhang H, Zhang L, Li H, Mao H, Pei Y, Jing Z, Lu Q. Transcatheter aortic valve replacement with balloon-expandable valve : Analysis of initial experience in China. Herz 2017; 43:746-751. [PMID: 29236149 PMCID: PMC6280821 DOI: 10.1007/s00059-017-4622-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2017] [Revised: 08/21/2017] [Accepted: 08/31/2017] [Indexed: 11/28/2022]
Abstract
Background Transcatheter aortic valve replacement (TAVR) is widely applied for the treatment of severe aortic stenosis (AS) in developed countries; however, in China, it is still in the early stage of utilization. On the basis of previous studies, this work explored the feasibility of TAVR in patients with severe AS in China and analyzed the cause of death in four cases. Methods This retrospective study included 20 patients who had severe AS and underwent TAVR with a balloon-expandable system (Edwards SAPIEN XT) in our hospital from January 2011 to June 2016. The valve and heart functions of 16 survivors before and after the TAVR procedure were compared. TAVR endpoints, device success, and adverse events were assessed according to the definitions of the Valve Academic Research Consortium-2 (VARC-2). Results There were 13 male and seven female patients aged 65–81 years (average, 73.15) who underwent TAVR. The TAVR approach was transfemoral in 19 patients and transapical in one patient. Four patients died (two of coronary artery occlusion and two of aortic annulus rupture) during the TAVR procedure or shortly after; six patients had mild paravalvular leakage, and the rest of the patients showed a significant improvement in cardiac function. During the follow-up period (2–62 months), one patient died of lung cancer 13 months after the TAVR procedure. Conclusion TAVR with a balloon-expandable system is safe and effective and can be used for patients with severe AS in China. It requires careful patient selection and preoperative assessment so as to reduce the 30-day postoperative mortality rate.
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Affiliation(s)
- Y Shen
- Department of Vascular Surgery, Changhai Hospital, Shanghai, China
| | - H Zhang
- Department of Vascular Surgery, Changhai Hospital, Shanghai, China
| | - L Zhang
- Department of Vascular Surgery, Changhai Hospital, Shanghai, China
| | - H Li
- Department of Vascular Surgery, Changhai Hospital, Shanghai, China
| | - H Mao
- Department of Vascular Surgery, Changhai Hospital, Shanghai, China
| | - Y Pei
- Department of Vascular Surgery, Changhai Hospital, Shanghai, China
| | - Z Jing
- Department of Vascular Surgery, Changhai Hospital, Shanghai, China
| | - Q Lu
- Department of Vascular Surgery, Changhai Hospital, Shanghai, China.
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Wang ZK, Yang L, Wu LL, Mao H, Zhou YH, Zhang PF, Dai GH. Long non-coding RNA LINC00261 sensitizes human colon cancer cells to cisplatin therapy. ACTA ACUST UNITED AC 2017; 51:e6793. [PMID: 29267503 PMCID: PMC5731330 DOI: 10.1590/1414-431x20176793] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2017] [Accepted: 09/11/2017] [Indexed: 12/12/2022]
Abstract
Colon cancer is one of the most common digestive tumors. The present study aimed to explore the functional role, as well as the underlying mechanism of long non-coding RNA LINC00261 in colon cancer. Expression of LINC00261 was analyzed in colon cancer cell lines and human normal cell lines. Acquired resistance cell lines were then built and the acquired resistance efficiency was detected by evaluating cell viability. Thereafter, the effects of LINC00261 overexpression on cisplatin-resistant colon cancer cells were measured, as well as cell apoptosis, viability, migration, and invasion. Subsequently, we investigated the interaction of LINC00261 and β-catenin. The results showed that the LINC00261 gene was down-regulated in colon cancer cell lines and tissues, and in cisplatin-resistant cells. LINC00261 overexpression might relieve cisplatin resistance of colon cancer cells via promoting cell apoptosis, and inhibiting cell viability, migration, and invasion. Moreover, LINC00261 might down-regulate nuclear β-catenin through restraining β-catenin from cytoplasm into nuclei or it could also promote β-catenin degradation and inhibit activation of Wnt pathway. Finally, LINC00261 reduced cisplatin resistance of colon cancer in vivo and enhanced the anti-colon cancer effect of cisplatin through reducing tumor volume and weight.
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Affiliation(s)
- Z K Wang
- The Second Department of Medical Oncology, Chinese People's Liberation Army General Hospital, Beijing, China
| | - L Yang
- The Second Department of Medical Oncology, Chinese People's Liberation Army General Hospital, Beijing, China
| | - L L Wu
- Tumor Center Laboratory, Chinese People's Liberation Army General Hospital, Beijing, China
| | - H Mao
- The Second Department of Medical Oncology, Chinese People's Liberation Army General Hospital, Beijing, China
| | - Y H Zhou
- The Second Department of Medical Oncology, Chinese People's Liberation Army General Hospital, Beijing, China
| | - P F Zhang
- The Second Department of Medical Oncology, Chinese People's Liberation Army General Hospital, Beijing, China
| | - G H Dai
- The Second Department of Medical Oncology, Chinese People's Liberation Army General Hospital, Beijing, China
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Yang X, Lei Y, Shu H, Rossi P, Mao H, Shim H, Curran W, Liu T. A Learning-Based Approach to Derive Electron Density from Anatomical MRI for Radiation Therapy Treatment Planning. Int J Radiat Oncol Biol Phys 2017. [DOI: 10.1016/j.ijrobp.2017.06.437] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Katayama K, Ashikawa N, Ding F, Mao H, Zhou H, Luo G, Wu J, Noguchi M, Fukada S. Deuterium retention in deposited W layer exposed to EAST deuterium plasma. Nuclear Materials and Energy 2017. [DOI: 10.1016/j.nme.2017.04.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Mao H, Chen K, Zhu X, Luo Q, Zhao J, Li W, Wu X, Xu H. Identification of suitable reference genes for quantitative real-time PCR normalization in blotched snakehead Channa maculata. J Fish Biol 2017; 90:2312-2322. [PMID: 28386932 DOI: 10.1111/jfb.13308] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2016] [Accepted: 03/06/2017] [Indexed: 06/07/2023]
Abstract
A systematic study was conducted to identify reliable reference genes for normalization of gene expression analysis in the blotched snakehead Channa maculata under normal physiological conditions. Firstly, the partial complementary (c)DNA of nine candidate reference genes (actb, tmem104, ube2l3, ef1α, churc1, tmem256, rpl13a, sep15 and g6pd) were cloned from C. maculata. The expression levels of these genes were then assessed in embryos of different developmental stages and various tissue types of adult fish using quantitative real-time (qrt-)PCR. RefFinder algorithm was used to evaluate the expression stability of these genes based on their cycle-threshold (Ct ) values in the qrt-PCR analysis. Results showed that there was no single best reference gene for all stages of embryos and adult tissues tested. Furthermore, it was found that, among the nine candidate genes tested, actb and tmem104 were the most stable reference genes across adult tissue types, while sep15 and tmem256 were the most stable ones across developmental stages of embryos. These stable reference genes are recommended for normalization of gene expression analysis in C. maculata.
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Affiliation(s)
- H Mao
- Pearl River Fisheries Research Institute, Chinese Academic of Fisheries Sciences, Guangzhou, 510380, China
- College of Fisheries and Life Science, Shanghai Ocean University, 999 Huchenghuan Road, Shanghai, 201306, China
| | - K Chen
- Pearl River Fisheries Research Institute, Chinese Academic of Fisheries Sciences, Guangzhou, 510380, China
- College of Fisheries and Life Science, Shanghai Ocean University, 999 Huchenghuan Road, Shanghai, 201306, China
| | - X Zhu
- Pearl River Fisheries Research Institute, Chinese Academic of Fisheries Sciences, Guangzhou, 510380, China
| | - Q Luo
- Pearl River Fisheries Research Institute, Chinese Academic of Fisheries Sciences, Guangzhou, 510380, China
| | - J Zhao
- Pearl River Fisheries Research Institute, Chinese Academic of Fisheries Sciences, Guangzhou, 510380, China
| | - W Li
- Pearl River Fisheries Research Institute, Chinese Academic of Fisheries Sciences, Guangzhou, 510380, China
| | - X Wu
- Pearl River Fisheries Research Institute, Chinese Academic of Fisheries Sciences, Guangzhou, 510380, China
- College of Fisheries and Life Science, Shanghai Ocean University, 999 Huchenghuan Road, Shanghai, 201306, China
| | - H Xu
- Pearl River Fisheries Research Institute, Chinese Academic of Fisheries Sciences, Guangzhou, 510380, China
- College of Fisheries and Life Science, Shanghai Ocean University, 999 Huchenghuan Road, Shanghai, 201306, China
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Zhou Y, Mao H, Demerjian K, Hogrefe C, Liu J. Regional and Hemispheric Influences on Temporal Variability in Baseline Carbon Monoxide and Ozone over the Northeast US. Atmos Environ (1994) 2017; 164:309-324. [PMID: 30147427 PMCID: PMC6104834 DOI: 10.1016/j.atmosenv.2017.06.017] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Interannual variability in baseline carbon monoxide (CO) and ozone (O3), defined as mixing ratios under minimal influence of recent and local emissions, was studied for seven rural sites in the Northeast US over 2001 - 2010. Annual baseline CO exhibited statistically significant decreasing trends (-4.3 - -2.3 ppbv yr-1), while baseline O3 did not display trends at any site. In examining the data by season, wintertime and springtime baseline CO at the two highest sites (1.5 km and 2 km asl) did not experience significant trends. Decadal increasing trends (~2.55 ppbv yr-1) were found in springtime and wintertime baseline O3 in southern New Hampshire, which was associated with anthropogenic NOx emission reductions from the urban corridor. Biomass burning emissions impacted summertime baseline CO with ~38% variability from wildfire emissions in Russia and ~22% from Canada at five sites and impacted baseline O3 at the two high elevation sites only with ~27% variability from wildfires in both Russia and Canada. The Arctic Oscillation was negatively correlated with summertime baseline O3, while the North Atlantic Oscillation was positively correlated with springtime baseline O3. This study suggested that anthropogenic and biomass burning emissions, and meteorological conditions were important factors working together to determine baseline O3 and CO in the Northeast U.S. during the 2000s.
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Affiliation(s)
- Y. Zhou
- Department of Chemistry, State University of New York College of Environmental Science and Forestry, Syracuse, NY 13210, USA
| | - H. Mao
- Department of Chemistry, State University of New York College of Environmental Science and Forestry, Syracuse, NY 13210, USA
| | - K. Demerjian
- Atmospheric Science Research Center, State University of New York at Albany, Albany, NY 12203, USA
| | - C. Hogrefe
- Emissions and Model Evaluation Branch, Atmospheric Modeling and Analysis Division, NERL, ORD, U.S. EPA, Research Triangle Park, NC 27711, USA
| | - J. Liu
- Department of Geography and Planning, University of Toronto, Toronto, ON M5S 3G3, Canada
- School of Atmospheric Sciences, Nanjing University, Nanjing, 210093, China
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Mao H, Su P, Qiu W, Huang L, Yu H, Wang Y. The use of Masson's trichrome staining, second harmonic imaging and two-photon excited fluorescence of collagen in distinguishing intestinal tuberculosis from Crohn's disease. Colorectal Dis 2016; 18:1172-1178. [PMID: 27232282 DOI: 10.1111/codi.13400] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/08/2015] [Accepted: 02/23/2016] [Indexed: 12/13/2022]
Abstract
AIM Differentiation between Crohn's disease (CD) and intestinal tuberculosis (ITB) continues to be difficult. The present study investigated the collagen fibre characteristics of CD and ITB using Masson's trichrome staining, second harmonic generation (SHG) imaging and two-photon excited fluorescence (TPEF) imaging with the aim of distinguishing between them. METHOD The characteristics of collagen fibres in intestinal specimens from patients with CD, ITB and healthy controls were compared using Masson's trichrome staining and SHG and TPEF imaging. RESULTS Masson's trichrome staining showed that the content of collagen fibre (540.92 [139.61-1681.93] vs 236.17 [72.94-1108.32], P < 0.05) and fibre deposits (888.92 [315.89-3172.9] vs 498.98 [38.82-5802.31], P < 0.05) were both higher in ITB than in CD. The content of collagen fibre (594.677 [139.61-1681.93] vs 107.425 [4.66-988.7], P < 0.05) and fibre deposits (1118.4661 [315.89-5802.31] vs 340.575 [29.62-1188.87], P < 0.05) were significantly higher in lesions with granulomata than in those without. The SHG/TPEF images demonstrated that the percentage of fibrosis in ITB was also significantly higher than in CD (P < 0.05), in both surgical (13.363% ± 5.303% vs 8.322% ± 5.078%, P = 0.044) and endoscopic specimens (mean rank 13.5 vs 7.5, P = 0.023). The SHG/TPEF imaging described different distribution patterns of collagen between CD and ITB; in the former this was irregular in clumps while in ITB the collagen was arranged around caseating granulomata. CONCLUSION The evaluation of fibrosis in CD and ITB by Masson's trichrome staining and SHG and TPEF imaging appears to distinguish between these two diseases.
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Affiliation(s)
- H Mao
- Department of Digestive Disease, Zhujiang Hosiptal of Southern Medical University, Guangzhou, Guangdong, China
| | - P Su
- Department of Digestive Disease, Zhujiang Hosiptal of Southern Medical University, Guangzhou, Guangdong, China
| | - W Qiu
- Department of Digestive Disease, Guangzhou Hospital of Traditional Chinese and Western Medicine, Guangzhou, Guangdong, China
| | - L Huang
- Department of Digestive Disease, Zhujiang Hosiptal of Southern Medical University, Guangzhou, Guangdong, China
| | - H Yu
- Department of Digestive Disease, Zhujiang Hosiptal of Southern Medical University, Guangzhou, Guangdong, China
| | - Y Wang
- Research Centre of Non-labeled Imaging, Southern Medical University, Guangzhou, Guangdong, China
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Fu X, Xia H, Mao H, Zhao S, Wang Z. The effect of glycaemic control in type 2 diabetic patients with subclinical hypothyroidism. J Endocrinol Invest 2016; 39:1453-1458. [PMID: 27476072 DOI: 10.1007/s40618-016-0519-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/02/2015] [Accepted: 07/19/2016] [Indexed: 10/21/2022]
Abstract
OBJECTIVE The purpose of this study was to investigate the effect of glycaemic control on subclinical hypothyroidism (SCH) in Chinese type 2 diabetic patients. METHODS The study included 476 diabetic patients with SCH admitted for treatment of type 2 diabetes. The controls were selected euthyroid patients with similar characteristics regarding [age, body mass index (BMI), gender, previous hypertension or duration of diabetes, and smoke]. Total cholesterol (TC), LDL cholesterol (LDL-C), high-density lipoprotein cholesterol (HDL-C), triglyceride (TG), the homeostatic model assessment of insulin resistance ratio (HOMA-IR), fasting plasma glucose, hemoglobin A1c (HbA1c), as well as plasma levels of thyrotrophin, and free thyroxine (FT4) were assessed at baseline and after 6 months of glycaemic control treatment. RESULTS The LDL-C level and HOMA-IR value were significantly higher in the SCH group. Glycaemic control reduced HOMA-IR, HbA1c, LDL-C, and TG level in patients with SCH. Furthermore, glycaemic control plays a negative effect on thyrotrophin in the SCH group, while this effect was not observed in euthyroid subjects. HbA1c plays a positive correlation with HOMA-IR (r = 0.048, p < 0.001), fasting plasma glucose (r = 0.086, p < 0.001), LDL-C (r = 0.062, p < 0.001) and TG (r = 0.021, p = 0.009). CONCLUSION Our study shows that glycaemic control may bring some benefits to type 2 diabetic patients with SCH.
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Affiliation(s)
- X Fu
- Renmin Hospital of Wuhan University, Wuhan, China
| | - H Xia
- Renmin Hospital of Wuhan University, Wuhan, China.
| | - H Mao
- The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - S Zhao
- The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Z Wang
- The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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Yang X, Jani A, Rossi P, Mao H, Curran W, Liu T. Multiparametric Magnetic Resonance Imaging Guided Radiation Therapy for Prostate Cancer Using Learning-Based Magnetic Resonance Imaging–Computed Tomography Registration. Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2016.06.2136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Liu S, Li X, Guang N, Tian L, Mao H, Ning W. Novel amphiphilic temperature responsive graft copolymers PCL-g-P(MEO2MA-co-OEGMA) via a combination of ROP and ATRP: synthesis, characterization, and sol-gel transition. J Polym Res 2016. [DOI: 10.1007/s10965-016-1036-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Abstract
Abstract
Mixing vane grids (MVG) have great influence on coolant temperature field in the rod bundle. The MVG could enhance convective heat transfer between the fuel rod wall and the coolant, and promote inter-subchannel mixing at the same time. For the influence of the MVG on convective heat transfer enhancement, many experiments have been done and several correlations have been developed based on the experimental data. However, inter-subchannel mixing promotion caused by the MVG is not well estimated in subchannel analysis because the information of mixing vanes is totally missing in most subchannel codes. This paper analyzes the influence of mixing vanes on coolant temperature distribution using the improved MVG model in subchannel analysis. The coolant temperature distributions with the MVG are analyzed, and the results show that mixing vanes lead to a more uniform temperature distribution. The performances of split vane grids under different power conditions are evaluated. The results are compared with those of spacer grids without mixing vanes and some conclusions are obtained.
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Affiliation(s)
- H. Mao
- Science and Technology Center for Advanced Nuclear Fuel Research , Xi'an Jiaotong University, Xianning West Rd 28, Xi'an, Shaanxi 710049 , P.R. China
| | - B.-W. Yang
- Science and Technology Center for Advanced Nuclear Fuel Research , Xi'an Jiaotong University, Xianning West Rd 28, Xi'an, Shaanxi 710049 , P.R. China
| | - B. Han
- Science and Technology Center for Advanced Nuclear Fuel Research , Xi'an Jiaotong University, Xianning West Rd 28, Xi'an, Shaanxi 710049 , P.R. China
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Han B, Yang BW, Zhang H, Mao H, Zha Y. The effect of spacer grid critical component on pressure drop under both single and two phase flow conditions. KERNTECHNIK 2016. [DOI: 10.3139/124.110745] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Abstract
As pressure drop is one of the most critical thermal hydraulic parameters for spacer grids the accurate estimation of it is the key to the design and development of spacer grids. Most of the available correlations for pressure drop do not contain any real geometrical parameters that characterize the grid effect. The main functions for spacer grid are structural support and flow mixing. Once the boundary sublayer near the rod bundle is disturbed, the liquid forms swirls or flow separation that affect pressure drop. However, under two phase flow conditions, due to the existence of steam bubble, the complexity for spacer grid are multiplied and pressure drop calculation becomes much more challenging. The influence of the dimple location, distance of mixing vane to the nearest strip, and the effect of inter-subchannel mixing among neighboring subchannels on pressure drop and downstream flow fields are analyzed in this paper. Based on this study, more detailed space grid geometry parameters are recommended for adding into the correlation when predicting pressure drop.
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Affiliation(s)
- B. Han
- Science and Technology Center for Advanced Nuclear Fuel Research , Xi'an Jiaotong University, Xianning West Rd 28, Xi'an, Shaanxi 710049 , P.R. China
| | - B.-W. Yang
- Science and Technology Center for Advanced Nuclear Fuel Research , Xi'an Jiaotong University, Xianning West Rd 28, Xi'an, Shaanxi 710049 , P.R. China
| | - H. Zhang
- Science and Technology Center for Advanced Nuclear Fuel Research , Xi'an Jiaotong University, Xianning West Rd 28, Xi'an, Shaanxi 710049 , P.R. China
| | - H. Mao
- Science and Technology Center for Advanced Nuclear Fuel Research , Xi'an Jiaotong University, Xianning West Rd 28, Xi'an, Shaanxi 710049 , P.R. China
| | - Y. Zha
- Science and Technology Center for Advanced Nuclear Fuel Research , Xi'an Jiaotong University, Xianning West Rd 28, Xi'an, Shaanxi 710049 , P.R. China
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Mao H, Yang BW, Liu X. Review of the correlation developments and a new concept based on mixing mechanism for heat transfer enhancement of spacer grids. KERNTECHNIK 2016. [DOI: 10.3139/124.110751] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Abstract
Spacer grids could cause heat transfer enhancement both at the spacer grid regions and downstream of the spacer grids as a result of mixing promoted by the spacer grids in the rod bundle. This phenomenon has been demonstrated by many experiments, and several correlations have been developed based on these experimental data. This paper gives a review of the grid-enhanced heat transfer correlation developments in single phase flow. Following the exploration of the correlation development history, a predictive formulation of grid-enhanced heat transfer in single phase flow is established taking into account the effect of both swirl flow and crossflow. With emphasis on modeling of the mixing mechanism associated with the mixing vane grid, the new correlation could better reflect the physical process of the heat transfer augmentation, while a large number of experimental data are needed to determine the coefficients of the new correlation.
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Affiliation(s)
- H. Mao
- Science and Technology Center for Advanced Nuclear Fuel Research , Xi'an Jiaotong University, Xianning West Rd 28, Xi'an, Shaanxi 710049 , P.R. China
| | - B.-W. Yang
- Science and Technology Center for Advanced Nuclear Fuel Research , Xi'an Jiaotong University, Xianning West Rd 28, Xi'an, Shaanxi 710049 , P.R. China
| | - X. Liu
- Science and Technology Center for Advanced Nuclear Fuel Research , Xi'an Jiaotong University, Xianning West Rd 28, Xi'an, Shaanxi 710049 , P.R. China
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Yang X, Jani A, Rossi P, Mao H, Curran W, Liu T. TH-CD-206-02: BEST IN PHYSICS (IMAGING): 3D Prostate Segmentation in MR Images Using Patch-Based Anatomical Signature. Med Phys 2016. [DOI: 10.1118/1.4958183] [Citation(s) in RCA: 2] [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: 11/07/2022] Open
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Yang X, Jani A, Rossi P, Mao H, Curran W, Liu T. TH-CD-206-09: Learning-Based MRI-CT Prostate Registration Using Spare Patch-Deformation Dictionary. Med Phys 2016. [DOI: 10.1118/1.4958190] [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: 11/07/2022] Open
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Akinwande O, Akinwande O, Holly B, Arepally A, Genyk P, Hu C, Mao H, Wang J, Krimins R, Kraitchman D, Weiss C. FEATURED ABSTRACT Recanalization/collateralization after bariatric embolization in a swine model: comparison between 40μm, 100-300μm and 300-500μm embolic microspheres. J Vasc Interv Radiol 2016. [DOI: 10.1016/j.jvir.2015.12.039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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