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Yang C, Jiang H, Mao H, Zhang Y, Cao Y, Zhang Y, Yu H, Lv M, Xu H, Dong X, Tao L. Structurally diverse deformed phenanthrenes from Strophioblachia fimbricalyx with cytotoxic activities by inducing cell apoptosis. Phytochemistry 2024; 221:114035. [PMID: 38401672 DOI: 10.1016/j.phytochem.2024.114035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Revised: 02/14/2024] [Accepted: 02/17/2024] [Indexed: 02/26/2024]
Abstract
A group of phenanthrene derivatives with different deformed types, including four previously undescribed derivatives (1-4), an undescribed natural product (5) and five known compounds (6-10), were isolated from the leaves and stems of Strophioblachia fimbricalyx by molecular networking based on UPLC-MS/MS method. Their structures were established by 1D/2D NMR spectroscopy, HRESIMS, quantum chemistry calculation, and single crystal X-ray diffraction. In biogenic pathways, series of deformed phenanthrenes were all suspected to be derived from 6/6/6 tricyclic phenanthrenes with a gem-dimethyl unit in one ring as characteristic components of Strophioblachia. Fimbricalyxone (1) and trigoxyphin M (6) with a 6/6/5 tricyclic carbon skeleton were reported for the first time from the genus and fimbricalyxanhydride C (2) is the first example of anhydride type bearing a rare 8,9-oxycycle. All the isolates were evaluated for their cytotoxic activity against three tumor cell lines, and compounds 8 and 10 exhibited significant activity with IC50 values of 4.65-9.02 μM, and the structure-activity relationship of the deformed phenanthrenes was discussed. In addition, the X-ray structure of 8 and 10 and the antineoplastic activity of 10 are reported herein for the first time. Trigohowilol G (10) inhibiting the proliferation of A549 cells might be related to cell cycle distribution and the induction of S phase arrest, and it induced cell apoptosis through Bad/Bax/Cleaved PARP1 pathway.
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Affiliation(s)
- Changshui Yang
- Department of Pharmacy, Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou, 225009, China; Jiangsu Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Treatment of Senile Diseases, Yangzhou University, Yangzhou, 225009, China; The Key Laboratory of Syndrome Differentiation and Treatment of Gastric Cancer of the State Administration of Traditional Chinese Medicine, Yangzhou, 225009, China.
| | - Houli Jiang
- Department of Pharmacy, Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou, 225009, China
| | - Haoyu Mao
- Department of Pharmacy, Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou, 225009, China
| | - Yue Zhang
- Department of Pharmacy, Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou, 225009, China
| | - Yinxue Cao
- Department of Pharmacy, Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou, 225009, China
| | - Yanyan Zhang
- Testing Center, Yangzhou University, Yangzhou, 225009, China
| | - Hongyan Yu
- Department of Pharmacy, Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou, 225009, China
| | - Mengying Lv
- Department of Pharmacy, Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou, 225009, China; Jiangsu Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Treatment of Senile Diseases, Yangzhou University, Yangzhou, 225009, China
| | - Hairong Xu
- Department of Pharmacy, Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou, 225009, China; Jiangsu Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Treatment of Senile Diseases, Yangzhou University, Yangzhou, 225009, China
| | - Xiaoyun Dong
- Department of Pharmacy, Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou, 225009, China; Jiangsu Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Treatment of Senile Diseases, Yangzhou University, Yangzhou, 225009, China
| | - Li Tao
- Department of Pharmacy, Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou, 225009, China; The Key Laboratory of Syndrome Differentiation and Treatment of Gastric Cancer of the State Administration of Traditional Chinese Medicine, Yangzhou, 225009, China.
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Yang D, Han F, Cai J, Sun H, Wang F, Jiang M, Zhang M, Yuan M, Zhou W, Li H, Yang L, Bai Y, Xiao L, Dong H, Cheng Q, Mao H, Zhou L, Wang R, Li Y, Nie H. N-glycosylation by N-acetylglucosaminyltransferase IVa enhances the interaction of integrin β1 with vimentin and promotes hepatocellular carcinoma cell motility. Biochim Biophys Acta Mol Cell Res 2023; 1870:119513. [PMID: 37295747 DOI: 10.1016/j.bbamcr.2023.119513] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 06/02/2023] [Accepted: 06/05/2023] [Indexed: 06/12/2023]
Abstract
N-glycosylation has been revealed to be tightly associated with cancer metastasis. As a key transferase that catalyzes the formation of β1,4 N-acetylglucosamine (β1,4GlcNAc) branches on the mannose core of N-glycans, N-acetylglucosaminyltransferase IVa (GnT-IVa) has been reported to be involved in hepatocellular carcinoma (HCC) metastasis by forming N-glycans; however, the underlying mechanisms are largely unknown. In the current study, we found that GnT-IVa was upregulated in HCC tissues and positively correlated with worse outcomes in HCC patients. We found that GnT-IVa could promote tumor growth in mice; notably, this effect was attenuated after mutating the enzymatic site (D445A) of GnT-IVa, suggesting that GnT-IVa regulated HCC progression by forming β1,4GlcNAc branches. To mechanistically investigate the role of GnT-IVa in HCC, we conducted GSEA and GO functional analysis as well as in vitro experiments. The results showed that GnT-IVa could enhance HCC cell migration, invasion and adhesion ability and increase β1,4GlcNAc branch glycans on integrin β1 (ITGB1), a tumor-associated glycoprotein that is closely involved in cell motility by interacting with vimentin. Interruption of β1,4GlcNAc branch glycan modification on ITGB1 could suppress the interaction of ITGB1 with vimentin and inhibit cell motility. These results revealed that GnT-IVa could promote HCC cell motility by affecting the biological functions of ITGB1 through N-glycosylation. In summary, our results revealed that GnT-IVa is highly expressed in HCC and can form β1,4GlcNAc branches on ITGB1, which are essential for interactions with vimentin to promote HCC cell motility. These findings not only proposed a novel mechanism for GnT-IVa in HCC progression but also revealed the significance of N-glycosylation on ITGB1 during the process, which may provide a novel target for future HCC therapy.
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Affiliation(s)
- Depeng Yang
- School of Life Science and Technology, Harbin Institute of Technology, Harbin, Heilongjiang 150001, China
| | - Fang Han
- School of Life Science and Technology, Harbin Institute of Technology, Harbin, Heilongjiang 150001, China
| | - Jialing Cai
- School of Life Science and Technology, Harbin Institute of Technology, Harbin, Heilongjiang 150001, China
| | - Handi Sun
- School of Life Science and Technology, Harbin Institute of Technology, Harbin, Heilongjiang 150001, China
| | - Fengyou Wang
- School of Life Science and Technology, Harbin Institute of Technology, Harbin, Heilongjiang 150001, China
| | - Meiyi Jiang
- School of Life Science and Technology, Harbin Institute of Technology, Harbin, Heilongjiang 150001, China
| | - Mengmeng Zhang
- School of Life Science and Technology, Harbin Institute of Technology, Harbin, Heilongjiang 150001, China
| | - Mengfan Yuan
- School of Life Science and Technology, Harbin Institute of Technology, Harbin, Heilongjiang 150001, China
| | - Wenyang Zhou
- School of Life Science and Technology, Harbin Institute of Technology, Harbin, Heilongjiang 150001, China
| | - Huaxin Li
- School of Life Science and Technology, Harbin Institute of Technology, Harbin, Heilongjiang 150001, China
| | - Lijun Yang
- School of Life Science and Technology, Harbin Institute of Technology, Harbin, Heilongjiang 150001, China
| | - Yan Bai
- School of Life Science and Technology, Harbin Institute of Technology, Harbin, Heilongjiang 150001, China
| | - Lixing Xiao
- School of Life Science and Technology, Harbin Institute of Technology, Harbin, Heilongjiang 150001, China
| | - Haiyang Dong
- School of Life Science and Technology, Harbin Institute of Technology, Harbin, Heilongjiang 150001, China
| | - Qixiang Cheng
- School of Life Science and Technology, Harbin Institute of Technology, Harbin, Heilongjiang 150001, China
| | - Haoyu Mao
- School of Life Science and Technology, Harbin Institute of Technology, Harbin, Heilongjiang 150001, China
| | - Lu Zhou
- School of Life Science and Technology, Harbin Institute of Technology, Harbin, Heilongjiang 150001, China
| | - Ruonan Wang
- School of Life Science and Technology, Harbin Institute of Technology, Harbin, Heilongjiang 150001, China
| | - Yu Li
- School of Life Science and Technology, Harbin Institute of Technology, Harbin, Heilongjiang 150001, China.
| | - Huan Nie
- School of Life Science and Technology, Harbin Institute of Technology, Harbin, Heilongjiang 150001, China.
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Li Y, Chen Z, Wu C, Mao H, Sun P. A Hierarchical Framework for Quadruped Robots Gait Planning Based on DDPG. Biomimetics (Basel) 2023; 8:382. [PMID: 37754133 PMCID: PMC10526411 DOI: 10.3390/biomimetics8050382] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Revised: 08/16/2023] [Accepted: 08/18/2023] [Indexed: 09/28/2023] Open
Abstract
In recent years, significant progress has been made in employing reinforcement learning for controlling legged robots. However, a major challenge arises with quadruped robots due to their continuous states and vast action space, making optimal control using simple reinforcement learning controllers particularly challenging. This paper introduces a hierarchical reinforcement learning framework based on the Deep Deterministic Policy Gradient (DDPG) algorithm to achieve optimal motion control for quadruped robots. The framework consists of a high-level planner responsible for generating ideal motion parameters, a low-level controller using model predictive control (MPC), and a trajectory generator. The agents within the high-level planner are trained to provide the ideal motion parameters for the low-level controller. The low-level controller uses MPC and PD controllers to generate the foot-end force and calculates the joint motor torque through inverse kinematics. The simulation results show that the motion performance of the trained hierarchical framework is superior to that obtained using only the DDPG method.
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Affiliation(s)
- Yanbiao Li
- College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310023, China; (Y.L.); (Z.C.); (C.W.); (H.M.)
- Key Laboratory of Special Purpose Equipment and Advanced Processing Technology, Ministry of Education and Zhejiang Province, Zhejiang University of Technology, Hangzhou 310023, China
| | - Zhao Chen
- College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310023, China; (Y.L.); (Z.C.); (C.W.); (H.M.)
- Key Laboratory of Special Purpose Equipment and Advanced Processing Technology, Ministry of Education and Zhejiang Province, Zhejiang University of Technology, Hangzhou 310023, China
- Huzhou Institute of Digital Economy and Technology, Zhejiang University of Technology, Huzhou 313000, China
| | - Chentao Wu
- College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310023, China; (Y.L.); (Z.C.); (C.W.); (H.M.)
- Key Laboratory of Special Purpose Equipment and Advanced Processing Technology, Ministry of Education and Zhejiang Province, Zhejiang University of Technology, Hangzhou 310023, China
| | - Haoyu Mao
- College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310023, China; (Y.L.); (Z.C.); (C.W.); (H.M.)
- Key Laboratory of Special Purpose Equipment and Advanced Processing Technology, Ministry of Education and Zhejiang Province, Zhejiang University of Technology, Hangzhou 310023, China
- Huzhou Institute of Digital Economy and Technology, Zhejiang University of Technology, Huzhou 313000, China
| | - Peng Sun
- College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310023, China; (Y.L.); (Z.C.); (C.W.); (H.M.)
- Key Laboratory of Special Purpose Equipment and Advanced Processing Technology, Ministry of Education and Zhejiang Province, Zhejiang University of Technology, Hangzhou 310023, China
- Huzhou Institute of Digital Economy and Technology, Zhejiang University of Technology, Huzhou 313000, China
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Sun P, Gu Y, Mao H, Chen Z, Li Y. Research on Walking Gait Planning and Simulation of a Novel Hybrid Biped Robot. Biomimetics (Basel) 2023; 8:258. [PMID: 37366853 DOI: 10.3390/biomimetics8020258] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Revised: 06/02/2023] [Accepted: 06/09/2023] [Indexed: 06/28/2023] Open
Abstract
A kinematics analysis of a new hybrid mechanical leg suitable for bipedal robots was carried out and the gait of the robot walking on flat ground was planned. Firstly, the kinematics of the hybrid mechanical leg were analyzed and the applicable relevant models were established. Secondly, based on the preliminary motion requirements, the inverted pendulum model was used to divide the robot walking into three stages for gait planning: mid-step, start and stop. In the three stages of robot walking, the forward and lateral robot centroid motion trajectories and the swinging leg joint trajectories were calculated. Finally, dynamic simulation software was used to simulate the virtual prototype of the robot, achieving its stable walking on flat ground in the virtual environment, and verifying the feasibility of the mechanism design and gait planning. This study provides a reference for the gait planning of hybrid mechanical legged bipedal robots and lays the foundation for further research on the robots involved in this thesis.
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Affiliation(s)
- Peng Sun
- College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310023, China
- Key Laboratory of Special Purpose Equipment and Advanced Processing Technology, Ministry of Education and Zhejiang Province, Zhejiang University of Technology, Hangzhou 310023, China
- Huzhou Institute of Digital Economy and Technology, Zhejiang University of Technology, Huzhou 313000, China
| | - Yunfei Gu
- College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310023, China
- Key Laboratory of Special Purpose Equipment and Advanced Processing Technology, Ministry of Education and Zhejiang Province, Zhejiang University of Technology, Hangzhou 310023, China
- Huzhou Institute of Digital Economy and Technology, Zhejiang University of Technology, Huzhou 313000, China
| | - Haoyu Mao
- College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310023, China
- Key Laboratory of Special Purpose Equipment and Advanced Processing Technology, Ministry of Education and Zhejiang Province, Zhejiang University of Technology, Hangzhou 310023, China
- Huzhou Institute of Digital Economy and Technology, Zhejiang University of Technology, Huzhou 313000, China
| | - Zhao Chen
- College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310023, China
- Key Laboratory of Special Purpose Equipment and Advanced Processing Technology, Ministry of Education and Zhejiang Province, Zhejiang University of Technology, Hangzhou 310023, China
- Huzhou Institute of Digital Economy and Technology, Zhejiang University of Technology, Huzhou 313000, China
| | - Yanbiao Li
- College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310023, China
- Key Laboratory of Special Purpose Equipment and Advanced Processing Technology, Ministry of Education and Zhejiang Province, Zhejiang University of Technology, Hangzhou 310023, China
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Yan X, Zhang T, Liu L, Yu Y, Yang G, Han Y, Gong G, Wang F, Zhang L, Liu H, Li W, Yan X, Mao H, Li Y, Du C, Li J, Zhang Y, Wang R, Lv Q, Wang Z, Zhang J, Liu Z, Wang Z, Su R. Accuracy of Genomic Selection for Important Economic Traits of Cashmere and Meat Goats Assessed by Simulation Study. Front Vet Sci 2022; 9:770539. [PMID: 35372544 PMCID: PMC8966406 DOI: 10.3389/fvets.2022.770539] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2021] [Accepted: 01/24/2022] [Indexed: 11/13/2022] Open
Abstract
Genomic selection in plants and animals has become a standard tool for breeding because of the advantages of high accuracy and short generation intervals. Implementation of this technology is hindered by the high cost of genotyping and other factors. The aim of this study was to determine an optional marker density panel and reference population size for using genomic selection of goats, with speculation on the number of QTLs that affect the important economic traits of goats. In addition, the effect of buck population size in the reference population on the accuracy of genomic estimated breeding value (GEBV) was discussed. Based on the previous genetic evaluation results of Inner Mongolia White Cashmere Goats, live body weight (LBW, h2 = 0.11) and fiber diameter (FD, h2 = 0.34) were chosen to perform genomic selection in this study. Reasonable genome parameters and generation transmission processes were set, and phenotypic and genotype data of the two traits were simulated. Then, different sizes of the reference population and validation population were selected from progeny. The GEBVs were obtained by six methods, including GBLUP (Genomic Best Linear Unbiased Prediction), ssGBLUP (Single Step Genomic Best Linear Unbiased Prediction), BayesA, BayesB, Bayesian ridge regression, and Bayesian LASSO. The correlation coefficient between the predicted and realized phenotypes from simulation was calculated and used as a measure of the accuracy of GEBV in each trait. The results showed that the medium marker density Panel (45 K) could be used for genomic selection in goats, which can ensure the accuracy of the GEBV. The reference population size of 1,500 can achieve greater genetic progress in genomic selection for fiber diameter and live body weight in goats by comparing with the population size below this level. The accuracy of the GEBV for live body weight and fiber diameter was better when the number of QTLs was 100 and 50, respectively. Additionally, the accuracy of GEBV was discovered to be good when the buck population size was up to 200. Meanwhile, the accuracy of the GEBV for medium heritability traits (FDs) was found to be higher than the accuracy of the GEBV for low heritability traits (LBWs). These findings will provide theoretical guidance for genomic selection in goats by using real data.
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Affiliation(s)
- Xiaochun Yan
- College of Animal Science, Inner Mongolia Agricultural University, Hohhot, China
| | - Tao Zhang
- College of Animal Science, Inner Mongolia Agricultural University, Hohhot, China
- Inner Mongolia Bigvet Co., Ltd., Hohhot, China
| | - Lichun Liu
- College of Veterinary Medicine, Inner Mongolia Agricultural University, Hohhot, China
| | - Yongsheng Yu
- College of Animal Science, Inner Mongolia Agricultural University, Hohhot, China
| | - Guang Yang
- College of Animal Science, Inner Mongolia Agricultural University, Hohhot, China
| | - Yaqian Han
- College of Animal Science, Inner Mongolia Agricultural University, Hohhot, China
| | - Gao Gong
- College of Animal Science, Inner Mongolia Agricultural University, Hohhot, China
| | - Fenghong Wang
- College of Animal Science, Inner Mongolia Agricultural University, Hohhot, China
| | - Lei Zhang
- College of Animal Science, Inner Mongolia Agricultural University, Hohhot, China
| | - Hongfu Liu
- College of Animal Science, Inner Mongolia Agricultural University, Hohhot, China
| | - Wenze Li
- College of Animal Science, Inner Mongolia Agricultural University, Hohhot, China
| | - Xiaomin Yan
- College of Animal Science, Inner Mongolia Agricultural University, Hohhot, China
| | - Haoyu Mao
- College of Animal Science, Inner Mongolia Agricultural University, Hohhot, China
| | - Yaming Li
- College of Animal Science, Inner Mongolia Agricultural University, Hohhot, China
| | - Chen Du
- Department of Obstetrics and Gynaecology, Inner Mongolia Medical University, Hohhot, China
| | - Jinquan Li
- Key Laboratory of Mutton Sheep Genetics and Breeding, Ministry of Agriculture, Hohhot, China
- Key Laboratory of Animal Genetics, Breeding and Reproduction in Inner Mongolia Autonomous Region, Hohhot, China
- Engineering Research Centre for Goat Genetics and Breeding, Inner Mongolia Autonomous Region, Hohhot, China
| | - Yanjun Zhang
- College of Animal Science, Inner Mongolia Agricultural University, Hohhot, China
| | - Ruijun Wang
- College of Animal Science, Inner Mongolia Agricultural University, Hohhot, China
| | - Qi Lv
- College of Animal Science, Inner Mongolia Agricultural University, Hohhot, China
| | - Zhixin Wang
- College of Animal Science, Inner Mongolia Agricultural University, Hohhot, China
| | - Jiaxin Zhang
- College of Animal Science, Inner Mongolia Agricultural University, Hohhot, China
| | - Zhihong Liu
- College of Animal Science, Inner Mongolia Agricultural University, Hohhot, China
| | - Zhiying Wang
- College of Animal Science, Inner Mongolia Agricultural University, Hohhot, China
- *Correspondence: Zhiying Wang
| | - Rui Su
- College of Animal Science, Inner Mongolia Agricultural University, Hohhot, China
- Rui Su
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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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7
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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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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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12
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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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13
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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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14
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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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15
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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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16
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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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17
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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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18
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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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19
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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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20
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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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21
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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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22
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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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23
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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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24
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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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25
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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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26
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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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27
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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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28
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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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29
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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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30
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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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Liu P, Gu Z, Liu F, Jiang Y, Jiang S, Mao H, Cheng J, Duan L, Liu J. Large-Scale Left and Right Eye Classification in Retinal Images. Computational Pathology and Ophthalmic Medical Image Analysis 2018. [DOI: 10.1007/978-3-030-00949-6_31] [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] [Subscribe] [Scholar Register] [Indexed: 12/05/2022]
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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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Mao H, Liao Y, Ma J, Zhao SL, Huo FW. Water-soluble metal nanoparticles stabilized by plant polyphenols for improving the catalytic properties in oxidation of alcohols. Nanoscale 2016; 8:1049-1054. [PMID: 26662453 DOI: 10.1039/c5nr07897k] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Plant polyphenols extracted from plants are one of the most abundant biomasses in nature, which are typical water soluble natural polymers. Herein, we reported a facile approach for the synthesis of platinum nanoparticle (PtNP) aqueous colloid by utilizing black wattle tannin (BWT, a typical plant polyphenol) as amphiphilic stabilizer. The phenolic hydroxyls of BWT provide the PtNPs with enough hydrophilicity, and their reduction ability could protect the PtNPs from deactivation caused by oxygen atmosphere. Additionally, the hydrophilic nature of BWT could efficiently promote the oxidation of alcohols in water, meanwhile, the hydrophobic and rigid backbones of plant polyphenols are able to suppress the PtNPs from aggregating, thus ensuring the high dispersion of the PtNPs during reactions. Under mild aerobic conditions, the as-prepared BWT-Pt colloid catalyst exhibited high activity in a series of biphasic oxidation of aromatic alcohols and aliphatic alcohols. As for the cycling stability, the BWT-Pt catalyst showed no obvious decrease during the 7 cycles, revealing superior cycling stability as compared with the counterparts using PVP or PEG as the stabilizer.
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Affiliation(s)
- H Mao
- College of Chemistry and Materials Science, The Engineering Center for the Development of Farmland Ecosystem Service Function, Sichuan Normal University, Chengdu 610068, P. R. China.
| | - Y Liao
- College of Chemistry and Materials Science, The Engineering Center for the Development of Farmland Ecosystem Service Function, Sichuan Normal University, Chengdu 610068, P. R. China.
| | - J Ma
- College of Chemistry and Materials Science, The Engineering Center for the Development of Farmland Ecosystem Service Function, Sichuan Normal University, Chengdu 610068, P. R. China.
| | - S L Zhao
- College of Chemistry and Materials Science, The Engineering Center for the Development of Farmland Ecosystem Service Function, Sichuan Normal University, Chengdu 610068, P. R. China.
| | - F W Huo
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Institute of Advanced Materials, Nanjing Tech University (NanjingTech), Nanjing 211816, P. R. China.
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Wang WY, Wu XM, Jia LJ, Zhang HH, Cai F, Mao H, Xu WC, Chen L, Zhang J, Hu SF. Beta-arrestin1 and 2 differently modulate metabotropic glutamate receptor 7 signaling in rat developmental sevoflurane-induced neuronal apoptosis. Neuroscience 2016; 313:199-212. [DOI: 10.1016/j.neuroscience.2015.11.038] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2015] [Revised: 11/16/2015] [Accepted: 11/17/2015] [Indexed: 10/22/2022]
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Mitter SK, Song C, Qi X, Mao H, Rao H, Akin D, Lewin A, Grant M, Dunn W, Ding J, Bowes Rickman C, Boulton M. Dysregulated autophagy in the RPE is associated with increased susceptibility to oxidative stress and AMD. Autophagy 2015; 10:1989-2005. [PMID: 25484094 DOI: 10.4161/auto.36184] [Citation(s) in RCA: 317] [Impact Index Per Article: 35.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
Autophagic dysregulation has been suggested in a broad range of neurodegenerative diseases including age-related macular degeneration (AMD). To test whether the autophagy pathway plays a critical role to protect retinal pigmented epithelial (RPE) cells against oxidative stress, we exposed ARPE-19 and primary cultured human RPE cells to both acute (3 and 24 h) and chronic (14 d) oxidative stress and monitored autophagy by western blot, PCR, and autophagosome counts in the presence or absence of autophagy modulators. Acute oxidative stress led to a marked increase in autophagy in the RPE, whereas autophagy was reduced under chronic oxidative stress. Upregulation of autophagy by rapamycin decreased oxidative stress-induced generation of reactive oxygen species (ROS), whereas inhibition of autophagy by 3-methyladenine (3-MA) or by knockdown of ATG7 or BECN1 increased ROS generation, exacerbated oxidative stress-induced reduction of mitochondrial activity, reduced cell viability, and increased lipofuscin. Examination of control human donor specimens and mice demonstrated an age-related increase in autophagosome numbers and expression of autophagy proteins. However, autophagy proteins, autophagosomes, and autophagy flux were significantly reduced in tissue from human donor AMD eyes and 2 animal models of AMD. In conclusion, our data confirm that autophagy plays an important role in protection of the RPE against oxidative stress and lipofuscin accumulation and that impairment of autophagy is likely to exacerbate oxidative stress and contribute to the pathogenesis of AMD.
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Key Words
- 3-MA, 3-methyladenine
- ACTB, β-actin
- AMD, age-related macular degeneration
- APOE4, apolipoprotein E4
- FACS, fluorescence-activated cell sorting
- FBS, fetal bovine serum
- GFP, green fluorescent protein
- GSH, glutathione, reduced
- GSSG, glutathione, oxidized
- H2O2, hydrogen peroxide
- HFC, high fat, cholesterol-enriched diet
- LC3, microtubule-associated protein 1 light chain 3
- MMP, mitochondrial membrane potential
- MTT, 3-(4 5-dimethylthiazol-3-yl)-2, 5-diphenyl tetrazolium bromide
- ND, normal (rodent) diet
- POS, photoreceptor outer segments
- ROS, reactive oxygen species
- RPE
- RPE, retinal pigmented epithelium
- SOD2/MnSOD, superoxide dismutase 2, mitochondrial
- UPS, ubiquitin-proteasome system
- age-related macular degeneration
- aging
- autophagy
- oxidative stress
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Affiliation(s)
- Sayak K Mitter
- a Department of Ophthalmology ; Indiana University School of Medicine ; Indianapolis , IN USA
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