1
|
Afzal M, Muhammad S, Tan D, Kaleem S, Khattak AA, Wang X, Chen X, Ma L, Mo J, Muhammad N, Jan M, Tan Z. The Effects of Heavy Metal Pollution on Soil Nitrogen Transformation and Rice Volatile Organic Compounds under Different Water Management Practices. Plants (Basel) 2024; 13:871. [PMID: 38592896 PMCID: PMC10976017 DOI: 10.3390/plants13060871] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2024] [Revised: 02/26/2024] [Accepted: 03/04/2024] [Indexed: 04/11/2024]
Abstract
One of the most concerning global environmental issues is the pollution of agricultural soils by heavy metals (HMs), especially cadmium, which not only affects human health through Cd-containing foods but also impacts the quality of rice. The soil's nitrification and denitrification processes, coupled with the release of volatile organic compounds by plants, raise substantial concerns. In this review, we summarize the recent literature related to the deleterious effects of Cd on both soil processes related to the N cycle and rice quality, particularly aroma, in different water management practices. Under both continuous flooding (CF) and alternate wetting and drying (AWD) conditions, cadmium has been observed to reduce both the nitrification and denitrification processes. The adverse effects are more pronounced in alternate wetting and drying (AWD) as compared to continuous flooding (CF). Similarly, the alteration in rice aroma is more significant in AWD than in CF. The precise modulation of volatile organic compounds (VOCs) by Cd remains unclear based on the available literature. Nevertheless, HM accumulation is higher in AWD conditions compared to CF, leading to a detrimental impact on volatile organic compounds (VOCs). The literature concludes that AWD practices should be avoided in Cd-contaminated fields to decrease accumulation and maintain the quality of the rice. In the future, rhizospheric engineering and plant biotechnology can be used to decrease the transport of HMs from the soil to the plant's edible parts.
Collapse
Affiliation(s)
- Muhammad Afzal
- College of Agriculture, South China Agricultural University, Guangzhou 510642, China; (M.A.); (A.A.K.); (X.W.); (L.M.)
- Guangdong Provincial Key Laboratory of Utilization and Conservation of Food and Medicinal Resources in Northern Region, Shaoguan University, Shaoguan 512005, China;
| | - Sajid Muhammad
- College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310058, China;
| | - Dedong Tan
- School of Resources Environment and Safety Engineering, University of South China, Hengyang 421001, China;
| | - Sidra Kaleem
- Riphah Institute of Pharmaceutical Sciences, Islamabad 44600, Pakistan;
| | - Arif Ali Khattak
- College of Agriculture, South China Agricultural University, Guangzhou 510642, China; (M.A.); (A.A.K.); (X.W.); (L.M.)
| | - Xiaolin Wang
- College of Agriculture, South China Agricultural University, Guangzhou 510642, China; (M.A.); (A.A.K.); (X.W.); (L.M.)
| | - Xiaoyuan Chen
- Guangdong Provincial Key Laboratory of Utilization and Conservation of Food and Medicinal Resources in Northern Region, Shaoguan University, Shaoguan 512005, China;
| | - Liangfang Ma
- College of Agriculture, South China Agricultural University, Guangzhou 510642, China; (M.A.); (A.A.K.); (X.W.); (L.M.)
| | - Jingzhi Mo
- College of Agriculture, South China Agricultural University, Guangzhou 510642, China; (M.A.); (A.A.K.); (X.W.); (L.M.)
| | - Niaz Muhammad
- Department of Microbiology, Kohat University of Science and Technology, Kohat 26000, Pakistan;
| | - Mehmood Jan
- College of Agriculture, South China Agricultural University, Guangzhou 510642, China; (M.A.); (A.A.K.); (X.W.); (L.M.)
- Guangdong Provincial Key Laboratory of Utilization and Conservation of Food and Medicinal Resources in Northern Region, Shaoguan University, Shaoguan 512005, China;
| | - Zhiyuan Tan
- College of Agriculture, South China Agricultural University, Guangzhou 510642, China; (M.A.); (A.A.K.); (X.W.); (L.M.)
| |
Collapse
|
2
|
Chen Z, Miao Y, Tan Z, Hu Q, Wu Y, Li X, Guo W, Gu J. scCancer2: data-driven in-depth annotations of the tumor microenvironment at single-level resolution. Bioinformatics 2024; 40:btae028. [PMID: 38243719 PMCID: PMC10868330 DOI: 10.1093/bioinformatics/btae028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Revised: 01/10/2024] [Accepted: 01/15/2024] [Indexed: 01/21/2024] Open
Abstract
SUMMARY Single-cell RNA-seq (scRNA-seq) is a powerful technique for decoding the complex cellular compositions in the tumor microenvironment (TME). As previous studies have defined many meaningful cell subtypes in several tumor types, there is a great need to computationally transfer these labels to new datasets. Also, different studies used different approaches or criteria to define the cell subtypes for the same major cell lineages. The relationships between the cell subtypes defined in different studies should be carefully evaluated. In this updated package scCancer2, designed for integrative tumor scRNA-seq data analysis, we developed a supervised machine learning framework to annotate TME cells with annotated cell subtypes from 15 scRNA-seq datasets with 594 samples in total. Based on the trained classifiers, we quantitatively constructed the similarity maps between the cell subtypes defined in different references by testing on all the 15 datasets. Secondly, to improve the identification of malignant cells, we designed a classifier by integrating large-scale pan-cancer TCGA bulk gene expression datasets and scRNA-seq datasets (10 cancer types, 175 samples, 663 857 cells). This classifier shows robust performances when no internal confidential reference cells are available. Thirdly, scCancer2 integrated a module to process the spatial transcriptomic data and analyze the spatial features of TME. AVAILABILITY AND IMPLEMENTATION The package and user documentation are available at http://lifeome.net/software/sccancer2/ and https://doi.org/10.5281/zenodo.10477296.
Collapse
Affiliation(s)
- Zeyu Chen
- MOE Key Laboratory of Bioinformatics, BNRIST Bioinformatics Division, Institute for Precision Medicine & Department of Automation, Tsinghua University, Beijing 100084, China
| | - Yuxin Miao
- MOE Key Laboratory of Bioinformatics, BNRIST Bioinformatics Division, Institute for Precision Medicine & Department of Automation, Tsinghua University, Beijing 100084, China
| | - Zhiyuan Tan
- Department of Finance, Shanghai Advanced Institute of Finance, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Qifan Hu
- MOE Key Laboratory of Bioinformatics, BNRIST Bioinformatics Division, Institute for Precision Medicine & Department of Automation, Tsinghua University, Beijing 100084, China
| | - Yanhong Wu
- MOE Key Laboratory of Bioinformatics, BNRIST Bioinformatics Division, Institute for Precision Medicine & Department of Automation, Tsinghua University, Beijing 100084, China
| | - Xinqi Li
- MOE Key Laboratory of Bioinformatics, BNRIST Bioinformatics Division, Institute for Precision Medicine & Department of Automation, Tsinghua University, Beijing 100084, China
| | - Wenbo Guo
- MOE Key Laboratory of Bioinformatics, BNRIST Bioinformatics Division, Institute for Precision Medicine & Department of Automation, Tsinghua University, Beijing 100084, China
| | - Jin Gu
- MOE Key Laboratory of Bioinformatics, BNRIST Bioinformatics Division, Institute for Precision Medicine & Department of Automation, Tsinghua University, Beijing 100084, China
| |
Collapse
|
3
|
Shen Z, Tan Z, Ge L, Wang Y, Xing X, Sang W, Cai G. The global burden of lymphoma: estimates from the Global Burden of Disease 2019 study. Public Health 2024; 226:199-206. [PMID: 38086101 DOI: 10.1016/j.puhe.2023.11.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Revised: 10/18/2023] [Accepted: 11/09/2023] [Indexed: 01/15/2024]
Abstract
OBJECTIVES The aim of this study was to describe the global trends in the burden of lymphoma from 1990 to 2019. STUDY DESIGN The data used in this study were from the Global Burden of Disease 2019 study. METHODS This study described the age-standardised rates of incidence, prevalence, mortality, years of life lost (YLLs), years lived with disability (YLDs), and disability-adjusted life years (DALYs) of lymphoma (non-Hodgkin and Hodgkin's lymphoma, NHL and HL, respectively) annually from 1990 to 2019, stratified by sociodemographic index (SDI) and 21 world regions. The estimated annual percentage changes in these indexes were calculated. RESULTS In 2019, the age-standardised rates of HL per 100,000 population were lower than those of NHL in terms of incidence (1.1 vs 6.7 per 100,000 person-years, respectively) and prevalence (0.3 vs 5.7 per 100,000 person-years, respectively) but not mortality (21.6 vs 3.2 per 100,000 person-years, respectively). From 1999 to 2019, the global incidence of HL decreased and the incidence of NHL increased, and the prevalence of both HL and NHL increased, but the mortality rates decreased. When stratified by SDI, the incidence of HL decreased in all but middle-SDI regions, the mortality rate of HL decreased in all regions, and both the incidence and mortality rate of NHL increased in all but high-SDI regions. The prevalence of HL and NHL increased in all SDI regions, especially in middle-SDI regions. YLLs and DALYs of HL in all SDI regions and those of NHL in high-SDI regions decreased. YLDs slightly increased in middle- to high-SDI regions. CONCLUSIONS Lymphoma remains a major public health issue, and better prevention, precise identification, and promising treatments are vitally important.
Collapse
Affiliation(s)
- Z Shen
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei, Anhui, 230032, China
| | - Z Tan
- Research Center of Health Policy and Health Management, Xuzhou Medical University, Xuzhou, Jiangsu, 221004, China
| | - L Ge
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei, Anhui, 230032, China
| | - Y Wang
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei, Anhui, 230032, China
| | - X Xing
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei, Anhui, 230032, China
| | - W Sang
- Department of Hematology, Affiliated Hospital of Xuzhou Medical University, Xuzhou Jiangsu, 221006, China.
| | - G Cai
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei, Anhui, 230032, China; Menzies Institute for Medical Research, University of Tasmania, Hobart, Tasmania, 7000, Australia.
| |
Collapse
|
4
|
Yin K, Li J, Xiong Y, Zhu M, Tan Z, Jin Z. Simulating Synaptic Behaviors through Frequency Modulation in a Capacitor-Memristor Circuit. Micromachines (Basel) 2023; 14:2014. [PMID: 38004871 PMCID: PMC10673497 DOI: 10.3390/mi14112014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Revised: 10/20/2023] [Accepted: 10/27/2023] [Indexed: 11/26/2023]
Abstract
Memristors, known for their adjustable and non-volatile resistance, offer a promising avenue for emulating synapses. However, achieving pulse frequency-dependent synaptic plasticity in memristors or memristive systems necessitates further exploration. In this study, we present a novel approach to modulate the conductance of a memristor in a capacitor-memristor circuit by finely tuning the frequency of input pulses. Our experimental results demonstrate that these phenomena align with the long-term depression (LTD) and long-term potentiation (LTP) observed in synapses, which are induced by the frequency of action potentials. Additionally, we successfully implement a Hebbian-like learning mechanism in a simple circuit that connects a pair of memristors to a capacitor, resulting in observed associative memory formation and forgetting processes. Our findings highlight the potential of capacitor-memristor circuits in faithfully replicating the frequency-dependent behavior of synapses, thereby offering a valuable contribution to the development of brain-inspired neural networks.
Collapse
Affiliation(s)
- Kuibo Yin
- SEU-FEI Nano-Pico Center, Key Laboratory of MEMS of Ministry of Education, Southeast University, Nanjing 210096, China
| | | | | | | | | | | |
Collapse
|
5
|
Kaazan P, Seow W, Tan Z, Logan H, Philpott H, Huynh D, Warren N, McIvor C, Holtmann G, Clark SR, Tse E. Deliberate foreign body ingestion in patients with underlying mental illness: A retrospective multicentre study. Australas Psychiatry 2023; 31:619-624. [PMID: 37473424 PMCID: PMC10566206 DOI: 10.1177/10398562231189431] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 07/22/2023]
Abstract
OBJECTIVE Deliberate foreign body ingestion (DFBI) is characterised by recurrent presentations among patients with mental health conditions, intellectual disabilities and in prisoners. We aimed to profile the characteristics and evaluate the care of such patients in this study. METHODS Adult patients with an endoscopic record of attempted foreign body retrieval between January 2013 and September 2020 were identified at three Australian hospitals. Those with a documented mental health diagnosis were included and their standard medical records reviewed. Presentation history, demographics, comorbidities and endoscopic findings were recorded and described. RESULTS A total of 166 admissions were accounted for by 35 patients, 2/3 of which had borderline personality disorder (BPD). Repetitive presentations occurred in more than half of the cohort. There was an increased trend of hospital admissions throughout the years. At least half of the cohort had a documented mental health review during their admission. An average of 3.3 (2.9) foreign bodies were ingested per single episode. Endoscopic intervention was performed in 76.5% of incidents. The combined Length of stay for all patients was 680 days. CONCLUSION Deliberate foreign body ingestion in mental health patients is a common, recurring and challenging problem that is increasing in frequency and requires collaborative research to further guide holistic management.
Collapse
Affiliation(s)
- P Kaazan
- Department of Gastroenterology and Hepatology, The Princess Alexandra Hospital, Brisbane, Australia
- Faculty of Medicine, The University of Queensland, Brisbane, Australia; and
- Faculty of Health and Medical Sciences, The University of Adelaide, Adelaide, Australia
| | - W Seow
- Faculty of Health and Medical Sciences, The University of Adelaide, Adelaide, Australia; and
- Department of Gastroenterology and Hepatology, The Royal Adelaide Hospital, Adelaide, Australia
| | - Z Tan
- Faculty of Health and Medical Sciences, The University of Adelaide, Adelaide, Australia
| | - H Logan
- Department of Gastroenterology and Hepatology, The Princess Alexandra Hospital, Brisbane, Australia; and
- Faculty of Medicine, The University of Queensland, Brisbane, Australia
| | - H Philpott
- Faculty of Health and Medical Sciences, The University of Adelaide, Adelaide, Australia
| | - D Huynh
- Department of Gastroenterology and Hepatology, The Queen Elizabeth Hospital, Woodville South, Australia
| | - N Warren
- Faculty of Medicine, The University of Queensland, Brisbane, Australia; and
- Addiction and mental health services, Brisbane, Metro South health
| | - C McIvor
- Department of Gastroenterology and Hepatology, Logan Hospital, Logan, Australia
| | - G Holtmann
- Department of Gastroenterology and Hepatology, The Princess Alexandra Hospital, Brisbane, Australia; and
- Faculty of Medicine, The University of Queensland, Brisbane, Australia
| | - S R Clark
- Faculty of Health and Medical Sciences, University of Adelaide, Brisbane, Australia; and
- Discipline of Psychiatry, Central Adelaide Local Health Network
| | - E Tse
- Faculty of Health and Medical Sciences, The University of Adelaide, Adelaide, Australia; and
- Department of Gastroenterology and Hepatology, The Royal Adelaide Hospital, Adelaide, Australia
| |
Collapse
|
6
|
Li X, Niu K, Han Y, Dai J, Tan Z, Guo Z. Pre-Configured Error Pattern Ordered Statistics Decoding for CRC-Polar Codes. Entropy (Basel) 2023; 25:1405. [PMID: 37895526 PMCID: PMC10606545 DOI: 10.3390/e25101405] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Revised: 09/15/2023] [Accepted: 09/27/2023] [Indexed: 10/29/2023]
Abstract
In this paper, we propose a pre-configured error pattern ordered statistics decoding (PEPOSD) algorithm and discuss its application to short cyclic redundancy check (CRC)-polar codes. Unlike the traditional OSD that changes the most reliable independent symbols, we regard the decoding process as testing the error patterns, like guessing random additive noise decoding (GRAND). Also, the pre-configurator referred from ordered reliability bits (ORB) GRAND can better control the range and testing order of EPs. An offline-online structure can accelerate the decoding process. Additionally, we also introduce two orders to optimize the search order for testing EPs. Compared with CRC-aided OSD and list decoding, PEPOSD can achieve a better trade-off between accuracy and complexity.
Collapse
Affiliation(s)
- Xuanyu Li
- Key Laboratory of Universal Wireless Communications, Ministry of Education, Beijing University of Posts and Telecommunications, Beijing 100876, China; (X.L.); (Y.H.); (J.D.)
| | - Kai Niu
- Key Laboratory of Universal Wireless Communications, Ministry of Education, Beijing University of Posts and Telecommunications, Beijing 100876, China; (X.L.); (Y.H.); (J.D.)
| | - Yuxin Han
- Key Laboratory of Universal Wireless Communications, Ministry of Education, Beijing University of Posts and Telecommunications, Beijing 100876, China; (X.L.); (Y.H.); (J.D.)
| | - Jincheng Dai
- Key Laboratory of Universal Wireless Communications, Ministry of Education, Beijing University of Posts and Telecommunications, Beijing 100876, China; (X.L.); (Y.H.); (J.D.)
| | - Zhiyuan Tan
- Huawei Technologies, Co., Ltd., Shenzhen 518129, China; (Z.T.); (Z.G.)
| | - Zhiheng Guo
- Huawei Technologies, Co., Ltd., Shenzhen 518129, China; (Z.T.); (Z.G.)
| |
Collapse
|
7
|
Huang M, Chen L, Ma J, Mo J, He L, Liang Q, Peng G, Tan Z. Biological functions of endophytic bacteria in Robinia pseudoacacia 'Hongsen '. Front Microbiol 2023; 14:1128727. [PMID: 37621396 PMCID: PMC10446884 DOI: 10.3389/fmicb.2023.1128727] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Accepted: 07/17/2023] [Indexed: 08/26/2023] Open
Abstract
Introduction Endophytes and their host plants have co-evolved for a very long time. This relationship has led to the general recognition of endophytes as a particular class of microbial resources. R. pseudoacacia 'Hongsen' is drought- and barren-resistant species that can be grown in both the north and south of China, efficiently addresses the ecological issues caused by China's 'southern eucalyptus and northern poplar. Up to date, cultured-dependent studies are available for the R. pseudoacacia nitrogen-fixing and other endophytes. Therefore, the present research studied the R. pseudoacacia 'Hongsen,' microbiome in detail by high-throughput sequencing and culture dependant. Methods This study examined microbial species and functional diversity in Robinia pseudoacacia 'Hongsen' using culture-dependent (isolation) and culture-independent techniques. Results A total of 210 isolates were isolated from R. pseudoacacia 'Hongsen.' These isolates were clustered into 16 groups by the In Situ PCR (IS-PCR) fingerprinting patterns. 16S rRNA gene sequence analysis of the representative strain of each group revealed that these groups belonged to 16 species of 8 genera, demonstrating the diversity of endophytes in R. pseudoacacia 'Hongsen'. 'Bacillus is the most prevalent genus among all the endophytic bacteria. High-throughput sequencing of endophytic bacteria from R. pseudoacacia 'Hongsen' of the plant and the rhizosphere soil bacteria showed that the bacterial populations of soil near the root, leaf, and rhizosphere differed significantly. The microbial abundance decreased in the endophytes as compared to the rhizosphere. We observed a similar community structure of roots and leaves. With and without root nodules, Mesorhizobium sp. was significantly different in R. pseudoacacia 'Hongsen' plant. Discussion It was predicted that R. pseudoacacia 'Hongsen' plant endophytic bacteria would play a significant role in the metabolic process, such as carbohydrate metabolism, amino acid metabolism, membrane transport, and energy metabolism.
Collapse
Affiliation(s)
- Minqing Huang
- College of Agriculture, South China Agricultural University, Guangzhou, China
| | - Lijing Chen
- College of Agriculture, South China Agricultural University, Guangzhou, China
| | - Jiasi Ma
- College of Agriculture, South China Agricultural University, Guangzhou, China
| | - Jingzhi Mo
- College of Agriculture, South China Agricultural University, Guangzhou, China
| | - Lu He
- College of Agriculture, South China Agricultural University, Guangzhou, China
| | - Qihua Liang
- College of Natural Resources and Environment, South China Agricultural University, Guangzhou, China
| | - Guixiang Peng
- College of Natural Resources and Environment, South China Agricultural University, Guangzhou, China
| | - Zhiyuan Tan
- College of Agriculture, South China Agricultural University, Guangzhou, China
| |
Collapse
|
8
|
Luo Y, Gong K, Xie T, Liu R, Wang L, Liu H, Tan Z, Yao Y, Xie L. A novel variant of CDH2 in dilated cardiomyopathy. QJM 2023; 116:566-568. [PMID: 36961336 DOI: 10.1093/qjmed/hcad047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/18/2023] [Accepted: 03/20/2023] [Indexed: 03/25/2023] Open
Affiliation(s)
- Y Luo
- Department of Cardiovascular Surgery, The Second Xiangya Hospital of Central South University, Central South University, Changsha, Hunan 410011, P. R. China
| | - K Gong
- Department of Cardiovascular Surgery, The Second Xiangya Hospital of Central South University, Central South University, Changsha, Hunan 410011, P. R. China
| | - T Xie
- Department of Cardiovascular Surgery, The Second Xiangya Hospital of Central South University, Central South University, Changsha, Hunan 410011, P. R. China
| | - R Liu
- Department of Cardiovascular Surgery, The Second Xiangya Hospital of Central South University, Central South University, Changsha, Hunan 410011, P. R. China
| | - L Wang
- Department of Cardiovascular Surgery, The Second Xiangya Hospital of Central South University, Central South University, Changsha, Hunan 410011, P. R. China
| | - H Liu
- Department of Cardiovascular Surgery, The Clinical Center for Gene Diagnosis and Therapy of The State Key Laboratory of Medical Genetics, The Second Xiangya Hospital of Central South University, Central South University, Changsha, Hunan 410011, P. R. China
| | - Z Tan
- Department of Cardiovascular Surgery, The Clinical Center for Gene Diagnosis and Therapy of The State Key Laboratory of Medical Genetics, The Second Xiangya Hospital of Central South University, Central South University, Changsha, Hunan 410011, P. R. China
| | - Y Yao
- Department of Blood Transfusion, The Second Xiangya Hospital of Central South University, Central South University, Changsha, Hunan 410011, P. R. China
| | - L Xie
- Department of Cardiovascular Surgery, The Second Xiangya Hospital of Central South University, Central South University, Changsha, Hunan 410011, P. R. China
| |
Collapse
|
9
|
Lu L, Cui X, Tan Z, Wu Y. MedOptNet: Meta-Learning Framework for Few-shot Medical Image Classification. IEEE/ACM Trans Comput Biol Bioinform 2023; PP:1-12. [PMID: 37307181 DOI: 10.1109/tcbb.2023.3284846] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
In the medical research domain, limited data and high annotation costs have made efficient classification under few-shot conditions a popular research area. This paper proposes a meta-learning framework, termed MedOptNet, for few-shot medical image classification. The framework enables the use of various high-performance convex optimization models as classifiers, such as multi-class kernel support vector machines, ridge regression, and other models. End-to-end training is then implemented using dual problems and differentiation in the paper. Additionally, various regularization techniques are employed to enhance the model's generalization capabilities. Experiments on the BreakHis, ISIC2018, and Pap smear medical few-shot datasets demonstrate that the MedOptNet framework outperforms benchmark models. Moreover, the model training time is also compared to prove its effectiveness in the paper, and an ablation study is conducted to validate the effectiveness of each module.
Collapse
|
10
|
Li D, Yi Z, Wu Q, Huang Y, Yao H, Tan Z, Yang Y, Zhang W. De novo DCHS1 splicing mutation in a patient with mitral valve prolapse. QJM 2023; 116:121-122. [PMID: 36053189 DOI: 10.1093/qjmed/hcac214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Revised: 08/26/2022] [Indexed: 11/12/2022] Open
Affiliation(s)
- D Li
- From the Department of Cardiovascular Surgery, The Second Xiangya Hospital of Central South University, Changsha, China
- Clinical Center for Gene Diagnosis and Therapy, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Z Yi
- From the Department of Cardiovascular Surgery, The Second Xiangya Hospital of Central South University, Changsha, China
- Clinical Center for Gene Diagnosis and Therapy, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Q Wu
- From the Department of Cardiovascular Surgery, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Y Huang
- From the Department of Cardiovascular Surgery, The Second Xiangya Hospital of Central South University, Changsha, China
| | - H Yao
- From the Department of Cardiovascular Surgery, The Second Xiangya Hospital of Central South University, Changsha, China
- Clinical Center for Gene Diagnosis and Therapy, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Z Tan
- From the Department of Cardiovascular Surgery, The Second Xiangya Hospital of Central South University, Changsha, China
- Clinical Center for Gene Diagnosis and Therapy, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Y Yang
- From the Department of Cardiovascular Surgery, The Second Xiangya Hospital of Central South University, Changsha, China
- Clinical Center for Gene Diagnosis and Therapy, The Second Xiangya Hospital of Central South University, Changsha, China
| | - W Zhang
- From the Department of Cardiovascular Surgery, The Second Xiangya Hospital of Central South University, Changsha, China
- Clinical Center for Gene Diagnosis and Therapy, The Second Xiangya Hospital of Central South University, Changsha, China
| |
Collapse
|
11
|
Zhu Z, Yu P, Wu Y, Wu Y, Tan Z, Ling J, Ma J, Zhang J, Zhu W, Liu X. Sex Specific Global Burden of Osteoporosis in 204 Countries and Territories, from 1990 to 2030: An Age-Period-Cohort Modeling Study. J Nutr Health Aging 2023; 27:767-774. [PMID: 37754217 DOI: 10.1007/s12603-023-1971-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2023] [Accepted: 07/26/2023] [Indexed: 09/28/2023]
Abstract
BACKGROUND Osteoporosis is a highly prevalent disease with distinct sex pattern. We aimed to estimate the sex specific incidence, prevalence, and disability-adjusted life (DALYs) years of osteoporosis between 1990 and 2019, with additional predictions from 2020 to 2034. METHODS We collected osteoporosis disease burden data from the Global Burden of Disease study covering the years 1990 through 2019 in 204 countries and territories. The data included information on the number of incident cases of osteoporosis, DALYs, age-standardized incidence rates (ASIR), age-standardized prevalence rates (ASPR) and age-standardized DALYs rates. Additionally, we performed an age-period-cohort analysis to forecast the burden of osteoporosis. RESULTS The global number of incidence cases of osteoporosis, in 2019, reached 41.5 million cases. From 1990 to 2019, the low-middle socio-demographic index (SDI) region had the highest estimated annual percentage change in the world. Compared to males, female's ASIR and ASPR were all about 1.5 times higher than males for the same years in the same SDI regions. The projected global total number of incidence cases for osteoporosis between 2030 and 2034 is estimated to reach 263.2 million (154.4 million for females and 108.8 for males). Additionally, the burden in terms of DALYs is predicted to be 128.7 million (with 78.4 million for females and 50.3 million for males). CONCLUSION The global burden of osteoporosis is still increasing, mainly observed in high SDI countries. Females bear a burden 1.5 times higher than males in terms of incidence and DALYs. Steps should be taken to reduce the osteoporosis burden, especially in high SDI countries.
Collapse
Affiliation(s)
- Z Zhu
- Jing Zhang, Department of Anesthesiology, The Second Affiliated Hospital of Nanchang University, 1st Minde Road, Nanchang, Jiangxi, 330006, China, E-mail: ; Xiao Liu, Department of Cardiology, Sun Yat-sen Memorial Hospital of Sun Yat-sen University, Guangzhou, 510080, Guangdong, China, E-mail:
| | | | | | | | | | | | | | | | | | | |
Collapse
|
12
|
Huang J, Song Y, Kou X, Tan Z, Zhang S, Sun M, Zhou J, Fan M, Zhang M, Song Y, Li S, Yuan Y, Zhuang W, Zhang J, Zhang L, Jiang H, Gu K, Ye H, Wang Q, Zhu J. 69O First-line serplulimab versus placebo in combination with chemotherapy in PD-L1-positive oesophageal squamous cell carcinoma (ASTRUM-007): A randomised, double-blind, multicentre phase III study. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.10.105] [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: 12/05/2022] Open
|
13
|
Friedman D, Zimmerman S, Tan Z, Freeman J, Curtis J. Watchman device migration and embolization: a report from the NCDR LAAO registry. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.631] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Incomplete anchoring of the Watchman left atrial appendage closure (LAAO) device can result in substantial device migration or device embolization requiring percutaneous or surgical retrieval.
Purpose
To report rates and characteristics of in-hospital and post-discharge Watchman device migration and embolization events in the United States.
Methods
We performed a retrospective analysis of Watchman procedures (January 2016 through March 2021) reported to the National Cardiovascular Data Registry LAAO Registry. We excluded patients with prior LAAO interventions, no device released, and missing device information. In-hospital events were assessed among all patients and post-discharge events were assessed among patients with 45-day follow-up.
Results
Of 120,278 Watchman procedures, device migration or embolization occurred in 0.07% of patients (n=84) during the index hospitalization and surgery was performed in 39 patients. The in-hospital mortality rate was 14% among patients with device migration or embolization and 20.5% among patients who underwent surgery. In-hospital migration or embolization was more common: at hospitals with a lower median annual procedure volume (24 vs. 41 procedures, p<0.0001), with first-generation Watchman versus next-generation Watchman FLX devices (0.08% vs. 0.04%, p=0.0048), with larger LAA ostia (median 23 mm vs. 21 mm, p=0.004), and with a smaller difference between device and LAA ostial size (median difference 4 mm vs. 5 mm, p=0.04). There were no differences by age, sex, hospital type, hospital size, or teaching versus non-teaching status. Of 98,147 patients with 45-day follow-up, device migration or embolization after discharge occurred in 0.06% (n=54) patients and cardiac surgery was performed in 7.4% (n=4) of cases. The 45-day mortality rate was 3.7% (n=2) among patients with post-discharge device migration or embolization. Post-discharge migration or embolization was more common among men (79.7% of events but 58.9% of all procedures, p=0.0019), taller patients (177.9 cm vs. 172 cm, p=0.0005), and those with greater body mass (99.9 kg vs. 85.5 kg, p=0.0055); in contrast to in-hospital events, there were no differences in hospital volume, device characteristics, or LAA characteristics.
Conclusions
Watchman device migration or embolization is rare but associated with high mortality (Figure 1) and frequently requires surgical retrieval. A substantial proportion of all device migration or embolization cases occur after discharge and different patient and procedure characteristics are associated with in-hospital versus post-discharge cases. Given the morbidity and mortality associated with device migration or embolization, risk mitigation strategies and on-site cardiac surgical back-up are of paramount importance.
Funding Acknowledgement
Type of funding sources: Public grant(s) – National budget only. Main funding source(s): National Institutes of Health
Collapse
Affiliation(s)
- D Friedman
- Duke University , Durham , United States of America
| | - S Zimmerman
- Yale University , New Haven , United States of America
| | - Z Tan
- Yale University , New Haven , United States of America
| | - J Freeman
- Yale University , New Haven , United States of America
| | - J Curtis
- Yale University , New Haven , United States of America
| |
Collapse
|
14
|
Zhu M, Wen Y, Shi L, Tan Z, Shen Y, Yin K, Sun L. Revealing the promoting effect of multiple Mn valences on the catalytic activity of CeO 2 nanorods toward soot oxidation. Nanoscale 2022; 14:11963-11971. [PMID: 35894864 DOI: 10.1039/d2nr03101a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Mn-modified CeO2 nanomaterials have attracted extensive attention as efficient and promising catalysts for soot combustion due to their low cost and high catalytic activity. However, a detailed mechanism of how Mn promotes soot oxidation over CeO2 is still not clearly elucidated, which is crucial to further optimize the catalyst for achieving its practical applications. We here report a Mn-doped CeO2 catalyst with tunable surface Mn chemical valence states to study the Mn-promoting mechanism for improving CeO2 catalyst activity in soot oxidation. Experimental results show that Mn-doped CeO2 nanorods with surface Mn chemical valence states being optimized (Mn0.19Ce0.81O2) can lower the eliminating temperature of soot to 410 °C (T90) when in a loose contact and exhibit a strong resistance towards water molecules. The catalytic performances of Mn0.19Ce0.81O2 nanorods are comparable with those of other reported oxide catalysts both in the mimetic realistic and ideal reaction environments. Detailed characterization and theoretical calculation results demonstrate that balanced multiple Mn valences can dramatically enhance the catalysts' redox properties and their ability to activate O2 molecules, as well as improve the dynamic contact efficiency during the oxidation, which synergistically result in superior catalytic performances. This work might provide insight for the future design and preparation of catalysts to efficiently eliminate soot particles.
Collapse
Affiliation(s)
- Mingyun Zhu
- SEU-FEI Nano-Pico Center, Key Laboratory of MEMS of Ministry of Education, Southeast University, Nanjing, 210096, China.
| | - Yifeng Wen
- SEU-FEI Nano-Pico Center, Key Laboratory of MEMS of Ministry of Education, Southeast University, Nanjing, 210096, China.
| | - Lei Shi
- Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing 210096, China
| | - Zhiyuan Tan
- SEU-FEI Nano-Pico Center, Key Laboratory of MEMS of Ministry of Education, Southeast University, Nanjing, 210096, China.
| | - Yuting Shen
- School of Electronic and Information Engineering, Changshu Institute of Technology, Changshu, 215500, China
| | - Kuibo Yin
- SEU-FEI Nano-Pico Center, Key Laboratory of MEMS of Ministry of Education, Southeast University, Nanjing, 210096, China.
| | - Litao Sun
- SEU-FEI Nano-Pico Center, Key Laboratory of MEMS of Ministry of Education, Southeast University, Nanjing, 210096, China.
| |
Collapse
|
15
|
Naz N, Khan MA, Alsuhibany SA, Diyan M, Tan Z, Khan MA, Ahmad J. Ensemble learning-based IDS for sensors telemetry data in IoT networks. Math Biosci Eng 2022; 19:10550-10580. [PMID: 36032006 DOI: 10.3934/mbe.2022493] [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] [Indexed: 06/15/2023]
Abstract
The Internet of Things (IoT) is a paradigm that connects a range of physical smart devices to provide ubiquitous services to individuals and automate their daily tasks. IoT devices collect data from the surrounding environment and communicate with other devices using different communication protocols such as CoAP, MQTT, DDS, etc. Study shows that these protocols are vulnerable to attack and prove a significant threat to IoT telemetry data. Within a network, IoT devices are interdependent, and the behaviour of one device depends on the data coming from another device. An intruder exploits vulnerabilities of a device's interdependent feature and can alter the telemetry data to indirectly control the behaviour of other dependent devices in a network. Therefore, securing IoT devices have become a significant concern in IoT networks. The research community often proposes intrusion Detection Systems (IDS) using different techniques. One of the most adopted techniques is machine learning (ML) based intrusion detection. This study suggests a stacking-based ensemble model makes IoT devices more intelligent for detecting unusual behaviour in IoT networks. The TON-IoT (2020) dataset is used to assess the effectiveness of the proposed model. The proposed model achieves significant improvements in accuracy and other evaluation measures in binary and multi-class classification scenarios for most of the sensors compared to traditional ML algorithms and other ensemble techniques.
Collapse
Affiliation(s)
- Naila Naz
- Department of Computer Science, Quaid-i-Azam University, Islamabad, Pakistan
| | - Muazzam A Khan
- Department of Computer Science, Quaid-i-Azam University, Islamabad, Pakistan
| | - Suliman A Alsuhibany
- Department of Computer Science, College of Computer, Qassim University, Buraydah 51452, Saudi Arabia
| | - Muhammad Diyan
- School of Physics and Astronomy, University of Glasgow, United Kingdom
| | - Zhiyuan Tan
- School of Computing, Edinburgh Napier University, United Kingdom
| | - Muhammad Almas Khan
- Department of Computer Science, Quaid-i-Azam University, Islamabad, Pakistan
| | - Jawad Ahmad
- School of Computing, Edinburgh Napier University, United Kingdom
| |
Collapse
|
16
|
Tan Z, Wang C. P-329 Endometrioma impairs oocyte development by extensive premature activation of primordial follicles in an experimental endometrioma mouse model. Hum Reprod 2022. [DOI: 10.1093/humrep/deac107.313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Study question
What are the pathological mechanisms of endometrioma-associated poor ovarian function?
Summary answer
Endometrioma prematurely activated primordial follicles and subsequently impaired ovarian functions through disrupting folliculogenesis and deteriorating oocyte quality.
What is known already
Endometrioma is the most common subtype of endometriosis, of which the endometriotic lesions implant in the ovary. Women with endometrioma are usually coupled with disrupted folliculogenesis, hampered ovulation, impaired oocyte quality and undesired infertility, presenting with reduced ovarian reserve, low oocyte retrieval rates and poor fertility outcomes. However the underlying mechanisms of the disrupted folliculogenesis, hampered ovulation and impaired oocyte quality in endometrioma-associated infertility are still unclear.
Study design, size, duration
An experimental mouse model of endometrioma (OMA) was established to study the effects of endometriosis in ovary on the development and functions of follicles. Four to eight mice were included in experimental and sham control groups each. Ovaries were collected 4 weeks after transplantation of endometrial fragments. Follicle counts and specific developmental markers were used to evaluate the development and functions of follicles. Oocyte quality was studied by meiotic competence, cortical distributions and ATP synthesis.
Participants/materials, setting, methods
Minced endometrial tissues from donor mice were inserted into ovarian bursa in recipient mice. Ovarian follicles in different stages were examined and counted manually with Periodic acid-Schiff staining. Protein expressions of FOXO3, AMH and FSHR were detected by immunohistochemistry to characterise the developing primordial, primary/secondary and antral follicles, respectively. Oocytes were collected from oviduct after superovulation and stained with a-tubulin, LCA-FITC to assess maturity.
Main results and the role of chance
Successful establishment of endometriotic lesions in ovarian tissues was confirmed morphologically and histologically with a success rate of 83.33% in recipient mice. In the OMA ovaries, absolute counts of the follicles in each developmental stage showed significant reduction when compared with sham controls. Percentage of primordial follicles was significantly reduced, but percentage of advanced-staged follicles was significantly increased. Expression of FOXO3 in primordial follicles, AMH in developing follicles (primary, secondary) and FSHR in antral follicles were all significantly decreased in OMA group. Oocytes isolated from OMA ovaries had lower number and size than controls. Large proportion of the oocytes had significantly higher abnormal spindle rates, indicating mitotic disruption. Moreover, a large proportion of the oocytes also had impaired cortical granule migration, indicating affected organelle organization.
Limitations, reasons for caution
Studies based on this animal model may not reflect the exact situation in human. Moreover, success rate of the OMA model cannot reach 100%. Other factors contributing to the endometrioma-associated infertility still undetermined in the OMA models.
Wider implications of the findings
The results demonstrated that endometrioma remarkably deteriorated follicular development, and subsequently impaired oocyte quality by premature activation primordial follicles. The underlying deteriorating effects and mechanism might help to develop novel therapeutic targets to improve fertility outcomes in women with endometrioma.
Trial registration number
N/A
Collapse
Affiliation(s)
- Z Tan
- the Chinese University of Hong Kong, Obstetrics and gynaecology , hong kong, Hong Kong
| | - C.C Wang
- the Chinese University of Hong Kong, Obstetrics and gynaecology , hong kong, Hong Kong
| |
Collapse
|
17
|
Deng Y, Wang W, Zheng Q, Feng Y, Zou Y, Dong H, Tan Z, Zeng X, Zhao Y, Peng D, Yang X, Sun A. Menopausal hormone therapy: what are the problems in the perception of Chinese physicians? Climacteric 2022; 25:413-420. [PMID: 35438051 DOI: 10.1080/13697137.2022.2058391] [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] [Indexed: 11/03/2022]
Abstract
OBJECTIVE This study aimed to investigate Chinese physicians' perception and attitudes toward menopausal hormone therapy (MHT). METHODS This nationwide online survey was conducted in China. Physicians registered in the WeChat groups of the Gynecological Endocrinology Committee of China's Maternal and Child Health Care Association received a message invitation to complete this anonymous online survey from April 2020 to July 2020. Physicians' knowledge of and attitudes toward MHT were surveyed. RESULTS In total, 4672 questionnaires were submitted; only completed questionnaires could be submitted. The message was sent to 6021 doctors, so the response rate was 77.6%. Overall, 77.9-92.9% of physicians knew the common indications and contraindications to MHT. Additionally, 90.6%, 85.4%, 80.7% and 37.5% of physicians thought that MHT would increase the risk of venous thrombosis, breast cancer, endometrial cancer and weight gain, respectively. In total, 58.1% of the physicians mistakenly believed that a sex hormone test was one of the necessary examinations to reassess MHT prescription during follow-up visits. We found that 68.5% of physicians would consider using MHT themselves or recommend MHT to their partners in the future, and 11.4% were currently using MHT. CONCLUSIONS Most Chinese physicians have basic knowledge of MHT. Their misunderstandings about MHT mainly centered on the risks of endometrial cancer, weight gain and the necessary examinations during follow-up visits. These misunderstandings need to be clarified in future professional training programs.
Collapse
Affiliation(s)
- Y Deng
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, National Clinical Research Center for Obstetric & Gynecologic Diseases, Beijing, China
| | - W Wang
- Department of Reproductive Medicine, The Second Hospital of Hebei Medical University, Hebei, China
| | - Q Zheng
- Department of Obstetrics and Gynecology, The Affiliated Hospital of Qingdao University, Shandong, China
| | - Y Feng
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Nanchang University, JiangXi, China
| | - Y Zou
- Department of Obstetrics and Gynecology, Hunan Provincial Maternal and Child Health Care Hospital, Hunan, China
| | - H Dong
- Department of Obstetrics and Gynecology, Women and Children's Hospital of Jinzhou, Liaoning, China
| | - Z Tan
- Department of Obstetrics and Gynecology, Xinhui Maternity and Children's Hospital, Guangxi, China
| | - X Zeng
- Department of Gynecology, Guangzhou Women and Children's Medical Centre, Guangdong, China
| | - Y Zhao
- Department of Obstetrics and Gynecology, Xinhui Maternity and Children's Hospital, Guangxi, China
| | - D Peng
- Department of Obstetrics and Gynecology, Zhongda Hospital Southeast Univeisity, Jiangsu, China
| | - X Yang
- Department of Obstetrics and Gynecology, Liuzhou Maternity and Child Healthcare Hospital, GuangXi, China
| | - A Sun
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, National Clinical Research Center for Obstetric & Gynecologic Diseases, Beijing, China
| |
Collapse
|
18
|
Wang F, Yang S, Wang C, Li Q, Babaagba KO, Tan Z. Toward machine intelligence that learns to fingerprint polymorphic worms in IoT. INT J INTELL SYST 2022. [DOI: 10.1002/int.22871] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Fangwei Wang
- Key Laboratory of Network and Information Security of Hebei Province Hebei Normal University Shijiazhuang China
- College of Computer and Cyber Security Hebei Normal University Shijiazhuang China
| | - Shaojie Yang
- College of Computer and Cyber Security Hebei Normal University Shijiazhuang China
| | - Changguang Wang
- Key Laboratory of Network and Information Security of Hebei Province Hebei Normal University Shijiazhuang China
- College of Computer and Cyber Security Hebei Normal University Shijiazhuang China
| | - Qingru Li
- Key Laboratory of Network and Information Security of Hebei Province Hebei Normal University Shijiazhuang China
- College of Computer and Cyber Security Hebei Normal University Shijiazhuang China
| | | | - Zhiyuan Tan
- School of Computing Edinburgh Napier University Edinburgh UK
| |
Collapse
|
19
|
Liu J, Fan Z, Guo W, Gao T, Li S, Xu J, Bai C, Xue R, Zhang L, Xie L, Tan Z. 143P Novel anti-PD-L1 antibody TQB2450 (T) in combination with anlotinib (A) in patients with advanced soft tissue sarcoma (STS), the results from the expanded sample size and updated data. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.10.162] [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
|
20
|
Song Z, Hu Y, Liu S, Wang G, Zhai S, Zhang X, Li Y, Du G, Shi Y, Chen Y, Dong M, Guo R, Guo W, Huang H, Huang X, Jing H, Ke X, Li G, Miao L, Niu X, Qiu F, Shen J, Tang J, Wang T, Wang X, Wang Z, Wu J, Zhan S, Zhang B, Zhang L, Zhang Y, Zhang W, Zhao L, Zhao L, Zhen J, Zheng H, Zhu Z, Jiang D, Huang Z, Tan Z, Lin Q, Zhao R. Medication Therapy of High-Dose Methotrexate: An Evidence-Based Practice Guideline of the Division of Therapeutic Drug Monitoring, Chinese Pharmacological Society. Br J Clin Pharmacol 2021; 88:2456-2472. [PMID: 34729817 DOI: 10.1111/bcp.15134] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Revised: 09/29/2021] [Accepted: 10/15/2021] [Indexed: 02/05/2023] Open
Abstract
OBJECTIVES A lot of medication risks related to high-dose methotrexate (HDMTX) therapy still remain to be identified and standardized. This study aims to establish an evidence-based practice guideline for individualized medication of HDMTX. METHODS The practice guideline was launched by the Division of Therapeutic Drug Monitoring, Chinese Pharmacological Society. The guideline was developed following the WHO handbook for guideline development and the methodology of evidence-based medicine (EBM). The guideline was initially registered in the International Practice Guidelines Registry Platform (IPGRP-2017CN021). Systematic reviews were conducted to synthesis available evidence. A multicenter cross-sectional study was conducted by questionnaires to evaluate patients' perception and willingness on individualized medication of HDMTX. The Grading of Recommendations Assessment, Development, and Evaluation (GRADE) approach was used to rate the quality of evidence and to grade the strength of recommendations. RESULTS Multidisciplinary working groups were included in this guideline, including clinicians, pharmacists, methodologists, pharmacologists and pharmacoeconomic specialists. A total of 124 patients were involved to integrate patient values and preferences. Finally, the guideline presents 28 recommendations, regarding evaluation prior to administration (renal function, liver function, pleural effusion, comedications, genetic testing), pre-treatment and routine dosing regimen, therapeutic drug monitoring (necessity, method, timing, target concentration), leucovorin rescue (initial timing, dosage regimen and optimization), management of toxicities. Of them, 12 are strong recommendations. CONCLUSIONS We developed an evidence-based practice guideline with respect to HDMTX medication using a rigorous and multidisciplinary approach. This guideline provides comprehensive and practical recommendations involving the whole process of HDMTX administration to health care providers.
Collapse
Affiliation(s)
- Zaiwei Song
- Department of Pharmacy, Peking University Third Hospital, Beijing, China.,Institute for drug evaluation, Peking University Health Science Center, Beijing, China.,Therapeutic Drug Monitoring and Clinical Toxicology Center, Peking University, Beijing, China
| | - Yang Hu
- Department of Pharmacy, Peking University Third Hospital, Beijing, China.,Institute for drug evaluation, Peking University Health Science Center, Beijing, China.,Therapeutic Drug Monitoring and Clinical Toxicology Center, Peking University, Beijing, China
| | - Shuang Liu
- Department of Pharmacy, Peking University Third Hospital, Beijing, China.,Institute for drug evaluation, Peking University Health Science Center, Beijing, China.,Therapeutic Drug Monitoring and Clinical Toxicology Center, Peking University, Beijing, China
| | - Guanru Wang
- Department of Pharmacy, Peking University Third Hospital, Beijing, China.,Institute for drug evaluation, Peking University Health Science Center, Beijing, China.,Therapeutic Drug Monitoring and Clinical Toxicology Center, Peking University, Beijing, China
| | - Suodi Zhai
- Department of Pharmacy, Peking University Third Hospital, Beijing, China.,Institute for drug evaluation, Peking University Health Science Center, Beijing, China.,Therapeutic Drug Monitoring and Clinical Toxicology Center, Peking University, Beijing, China
| | - Xianglin Zhang
- Department of Pharmacy, China-Japan Friendship Hospital, Beijing, China
| | - Youping Li
- Chinese Evidence-Based Medicine Center, West China Hospital, Sichuan University, Chengdu, China
| | - Guanhua Du
- Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Yuankai Shi
- Department of Medical Oncology, Cancer Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, National Cancer Center/National Clinical Research Center for Cancer, Beijing, China
| | - Yaolong Chen
- Evidence-Based Medicine Center, School of Basic Medical Sciences, Lanzhou University, Lanzhou, China
| | - Mei Dong
- Department of Pharmacy, Harbin Medical University Cancer Hospital, Harbin, China
| | - Ruichen Guo
- Institute of Clinical Pharmacology, Qilu Hospital of Shandong University, Jinan, China
| | - Wei Guo
- Musculoskeletal Tumor Center, Peking University People's Hospital, Beijing, China
| | - Hongbing Huang
- Department of Pharmacy, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Xiaojun Huang
- Peking University Institute of Hematology, Peking University People's Hospital, National Clinical Research Center for Hematologic Disease, Beijing, China
| | - Hongmei Jing
- Department of Hematology, Peking University Third Hospital, Beijing, China
| | - Xiaoyan Ke
- Department of Hematology, Peking University Third Hospital, Beijing, China
| | - Guohui Li
- Department of Pharmacy, Cancer Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, National Cancer Center/National Clinical Research Center for Cancer, Beijing, China
| | - Liyan Miao
- Department of Clinical Pharmacology, First Affiliated Hospital of Soochow University, Suzhou, China
| | - Xiaohui Niu
- Department of Orthopedic Oncology, Beijing Jishuitan Hospital and Fourth Medical College of Peking University, Beijing, China
| | - Feng Qiu
- Department of Pharmacy, The first Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Jingnan Shen
- Department of Musculoskeletal Oncology, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Jingyan Tang
- Department of Hematology/Oncology, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, Key Lab of Pediatric Hematology & Oncology of China Ministry of Health, Shanghai, China
| | - Tianyou Wang
- Hematology Oncology Center, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Xiaoling Wang
- Department of Pharmacy, Beijing Children's Hospital, Capital Medical University, Beijing, China
| | - Zhuo Wang
- Department of Pharmacy, Shanghai Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Jiuhong Wu
- Pharmacy Department, The 306th Hospital of PLA, Beijing, China
| | - Siyan Zhan
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing, China.,Research Center of Clinical Epidemiology, Peking University Third Hospital, Beijing, China
| | - Bikui Zhang
- Department of Pharmacy, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Lingli Zhang
- Department of Pharmacy/Evidence-Based Pharmacy Centre, West China Second University Hospital, Sichuan University, Chengdu, China
| | - Yanhua Zhang
- Department of Pharmacy, Peking University Cancer Hospital and Institute, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Beijing, China
| | - Wei Zhang
- Department of Pharmacy, Jishuitan Hospital and Fourth Medical College of Peking University, Beijing, China
| | - Limei Zhao
- Department of Pharmacy, Shengjing Hospital of China Medical University, Shenyang, China
| | - Libo Zhao
- Department of Pharmacy, Beijing Children's Hospital, Capital Medical University, Beijing, China
| | - Jiancun Zhen
- Department of Pharmacy, Jishuitan Hospital and Fourth Medical College of Peking University, Beijing, China
| | - Huyong Zheng
- Hematology Oncology Center, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Zhu Zhu
- Department of Pharmacy, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Dan Jiang
- Department of Pharmacy, Peking University Third Hospital, Beijing, China.,Institute for drug evaluation, Peking University Health Science Center, Beijing, China.,Therapeutic Drug Monitoring and Clinical Toxicology Center, Peking University, Beijing, China
| | - Zhencheng Huang
- Department of Pharmacy, Peking University Third Hospital, Beijing, China.,Institute for drug evaluation, Peking University Health Science Center, Beijing, China.,Therapeutic Drug Monitoring and Clinical Toxicology Center, Peking University, Beijing, China
| | - Zhiyuan Tan
- Department of Pharmacy, Peking University Third Hospital, Beijing, China.,Institute for drug evaluation, Peking University Health Science Center, Beijing, China.,Therapeutic Drug Monitoring and Clinical Toxicology Center, Peking University, Beijing, China
| | - Qiaonan Lin
- Department of Pharmacy, Peking University Third Hospital, Beijing, China.,Institute for drug evaluation, Peking University Health Science Center, Beijing, China.,Therapeutic Drug Monitoring and Clinical Toxicology Center, Peking University, Beijing, China
| | - Rongsheng Zhao
- Department of Pharmacy, Peking University Third Hospital, Beijing, China.,Institute for drug evaluation, Peking University Health Science Center, Beijing, China.,Therapeutic Drug Monitoring and Clinical Toxicology Center, Peking University, Beijing, China
| |
Collapse
|
21
|
Liu Y, Liu J, Tan Z, Jiang X, Wang L, Lu Y, Fu X, Song Q, Zhao L, Yuan S, Bi N, Xu Y, Zhu Z, Zhu G, Li J, Xie C, Ma X, Xiao G, Ge H, Liu H, Zhao J, Liang J, Shen Q, Xu Q, Liu R, Zhou S, Kong W, Zhong W, Jin X, Wang Y, Jiang Y, Fu Z, Xie Y, Cai J, Li Z, Machtay M, Curran W, Kong F. P29.05 Gross Tumor Volume Contouring Variations in Radiation Therapy of Non-Small Cell Lung Cancer. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.08.400] [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]
|
22
|
Liu J, Jiang X, Tan Z, Li Z, Wang Y, Xie Y, Cai J, Zhu G, Li J, Xie C, Ma X, Xiao G, Liu H, Ge H, Zhao J, Liang J, Shen Q, Xu Q, Liu R, Zhou S, Zhong W, Kong W, Jiang Y, Xu Y, Fu Z, Liu Y, Zhu Z, Bi N, Yuan S, Zhao L, Song Q, Lu Y, Fu X, Wang L, Machtay M, Curran W, Kong F. P29.03 Thoracic Organs at Risk (OARs) Contouring Variations and Consensus in Radiation Therapy for Non-Small Cell Lung Cancer. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.08.398] [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]
|
23
|
Jan MA, Yeh KH, Tan Z, Wu Y. Blockchain for edge-enabled smart cities applications. Journal of Information Security and Applications 2021. [DOI: 10.1016/j.jisa.2021.102937] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
|
24
|
Abstract
A reliable, rapid, and effective bioanalytical method is essential for the determination of the pharmacokinetic, pharmacodynamic, and toxicokinetic parameters that inform the safety and efficacy profile of investigational drugs. The overall goal of bioanalytical method development is to elucidate the procedure and operating conditions under which a method can sufficiently extract, qualify, and/or quantify the analyte(s) of interest and/or their metabolites for the intended purpose. Given the difference in the physicochemical properties of small and large molecule drugs, different strategies need to be adopted for the development of an effective and efficient bioanalytical method. Herein, we provide an overview of different sample preparation strategies, analytical platforms, as well as procedures for achieving high throughput for bioanalysis of small and large molecule drugs.
Collapse
Affiliation(s)
- Aarzoo Thakur
- Innovations in Food and Chemical Safety, Agency for Science, Technology, and Research, Singapore, Singapore.,Skin Research Institute of Singapore, Agency for Science, Technology, and Research, Singapore, Singapore
| | - Zhiyuan Tan
- Department of Early Clinical Development, dMed-Clinipace, Shanghai, China
| | - Tsubasa Kameyama
- Department of Bioengineering and Therapeutic Sciences, Schools of Pharmacy and Medicine, University of California San Francisco, San Francisco, CA, USA
| | - Eman El-Khateeb
- Centre for Applied Pharmacokinetic Research, University of Manchester, Manchester, UK.,Clinical Pharmacy Department, Faculty of Pharmacy, Tanta University, Tanta, Egypt
| | - Shakti Nagpal
- Department of Pharmacy, Faculty of Science, National University of Singapore, Singapore, Singapore
| | | | - Rohitash Jamwal
- College of Pharmacy, University of Rhode Island, Kingston, RI, USA
| | | |
Collapse
|
25
|
Tan Z. P–316 A rat model of endometrioma to study endometriosis-related infertility. Hum Reprod 2021. [DOI: 10.1093/humrep/deab130.315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Study question
Underlying mechanisms and specific treatment for endometriosis-related infertility are still unclear and lacking. Is there any animal model suitable for the study?
Summary answer
Endometium ligation to ovary fat pad in rats is a more appropriate and successful but less detrimental model of endometrioma for infertility pathology and outcomes.
What is known already
Nonhuman primates (NHP) have been the most representative animal model for endometriosis since they menstruate in a cyclic pattern and develop endometriosis spontaneously as in human. However, the incidence of spontaneous endometriosis in NHP is low and due to ethical concerns and high cost, the application of NHP for endometriosis study is restricted. Rodents (i.e. rats, mice, rabbits) have been used to analyze the pathophysiology of endometriosis. Because rodents do not develop endometriosis spontaneously, it has to be induced surgically. Ovarian endometriosis is the most common type, but previous experimental models were mostly either subcutaneous, peritoneal wall or mesenteric endometriosis.
Study design, size, duration
An animal study to compare different methods of endometrium transplantation to the ovary as potential animal model of endometrioma to study the endometriosis-related infertility. Compared with NHP and other rodents, rats were chosen due to easy access, low cost, good ovary size, short estrus and reproductive cycle and similar endocrine pattern to human beings. For each transplantation method, at least 5 animals were included and followed up in different time points for comparisons.
Participants/materials, setting, methods
To establish ovarian endometriosis or endometrioma model, uterine tissues were collected from donor rats and then transplanted to recipient rats by either adhesion to ovary, ligation to ovary fat pad, or injection underneath tunica albuginea. Vasculature and histology of engrafts, follicle count and morphology of ovary, receptivity markers of endometrium, immune response and inflammatory cytokines of peritoneal cavity and hormonal changes were assessed after 4 days of transplantation. Implantation rates after conception will be examined.
Main results and the role of chance
Compared with other transplantation methods, only ligation of endometrium fragments to ovary fat pad resulted in endometrioma-like lesion in the ovaries. Compare with sham control ovaries, formation of new vessels from surrounding ovarian vessels to the endometriotic engraft assessed by Cellvizio LAB in vivo imaging was identified, indicating active angiogenesis. Morphology and histology of endometriotic cyst were confirmed in the lesion by H&E staining, suggesting functional endometrium. Stroma markers CD140b, CD106 lkand epithelium markers keratin 17/19 and EpCam were found in the ovary cortex, implying integration of endometrium tissue to the ovarian tissues. Decreased AMH expression and antral follicle count in the ovaries suggested defective follicle development. Reduced receptivity markers HOXA10, LIF and ανβ3 integrin expression in uterine endometrium and implantation rate after nature mating or embryo transfer indicated potential impaired endometrial receptivity. Peripheral and peritoneal levels of COX2 and IL–8 were elevated, suggesting inflammatory response. However, estrogen and progesterone levels were not significant different from baseline and other transplantation methods.
Limitations, reasons for caution
This was an animal model, it might not totally reflect the exact pathological changes of endometrioma in human. Current method was a single and short-term transplantation model, monthly endometrial cells engraftment and slow growing lesions without sufficient estrogen supply might limit the establishment of endometrium-like lesions. Further testings are needed.
Wider implications of the findings: Establishment of animal models for endometrioma is vital important to investigate the pathophysiology, underlying mechanism and potential therapy targets for endometriosis-related infertility. Currently such model is still lacking. An appropriate, adequate and effective but less detrimental model of endometrioma can accelerate the scientific research and clinical application in near future.
Trial registration number
N/A
Collapse
Affiliation(s)
- Z Tan
- the Chinese University of Hong Kong, Obstetrics & Gynaecology, hong kong, Hong Kong
| |
Collapse
|
26
|
Hu H, Quan J, Tan Z, Fu JH, Liang YJ, Li JX. Synthesis and Properties of Dimercury(I) Crystal Network Constructed with Functionalized Pyrazine Sulfonate and Nitrate Linkers. RUSS J GEN CHEM+ 2021. [DOI: 10.1134/s1070363221050224] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
|
27
|
Tan Z, Yu Z, Chen K, Liu W, Zhao R. Effects of Pharmacist-Led Clinical Pathway/Order Sets on Cancer Patients: A Systematic Review. Front Pharmacol 2021; 12:617678. [PMID: 34093177 PMCID: PMC8176097 DOI: 10.3389/fphar.2021.617678] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Accepted: 05/05/2021] [Indexed: 01/04/2023] Open
Abstract
Background: Pharmacist-led clinical pathways/order sets (PLCOs) were first applied for designated diseases and surgical operations, such as cancer. They were not used in pharmacotherapy until recently. After screening a large number of publications, we found that PLCOs were rarely accessible. Objective: To evaluate the effects and the changes of relevant medical outcomes of PLCOs. Methods: Articles from PubMed, Embase, Cochrane Library, China National Knowledge Infrastructure, Wanfang database, and China Biology Medicine disc (CBM) were systematically retrieved. Clinical research comparing cancer patients’ clinical effects with or without clinical pathway/order sets was performed. Two reviewers performed quality assessment, and the data were abstracted independently. A narrative synthesis of the extracted data was performed due to heterogeneity. Results: Nine studies were identified, including six uncontrolled before–after studies and three case-series studies. The scopes of PLCOs of included research can be divided into two types, one focusing on chemotherapy agents and the other on the managements of chemotherapy-induced complications. The PLCOs shortened hospital length of stay, decreased initial antibiotic time intervals in patients with febrile neutropenia, reduced medication error incidence, and increased physicians’ adherence rate to clinical pathway/order sets. Moreover, three articles included economic effects showing positive savings on medication costs through PLCOs. Conclusion: PLCOs can have beneficial effects on medication effectiveness, safety, and economic outcomes. Nevertheless, clinical pathway/order sets need to be further optimized and expanded to other clinical areas.
Collapse
Affiliation(s)
- Zhiyuan Tan
- Department of Pharmacy, Peking University Third Hospital, Beijing, China.,Department of Pharmacy Administration and Clinical Pharmacy, School of Pharmaceutical Sciences, Peking University, Beijing, China
| | - Zhiheng Yu
- Department of Pharmacy, Peking University Third Hospital, Beijing, China.,Department of Pharmacy Administration and Clinical Pharmacy, School of Pharmaceutical Sciences, Peking University, Beijing, China
| | - Ken Chen
- Department of Pharmacy, Peking University Third Hospital, Beijing, China
| | - Wei Liu
- Department of Pharmacy, Peking University Third Hospital, Beijing, China
| | - Rongsheng Zhao
- Department of Pharmacy, Peking University Third Hospital, Beijing, China.,Therapeutic Drug Monitoring and Clinical Toxicology Center of Peking University, Beijing, China
| |
Collapse
|
28
|
Zhao H, Tan Z, He L, Zhu S, Yan R, Kou H, Peng J. [Amiodarone promotes heat-induced apoptosis, inflammation and oxidative stress in mouse HL1 atrial myocytes]. Nan Fang Yi Ke Da Xue Xue Bao 2021; 41:406-411. [PMID: 33849832 DOI: 10.12122/j.issn.1673-4254.2021.03.13] [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] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
OBJECTIVE To investigate the injury types of atrial myocytes induced by heat exposure and the effect of amiodarone on heat-induced injuries in atrial myocytes. OBJECTIVE The optimal temperature for heat exposure and optimal concentration of amiodarone were determined by measuring the cell viability exposed to different temperatures and different concentrations of amiodarone. Heat exposure of HL1 atrial myocytes was conducted using a water bath, and the effect of amiodarone on cell viability was assessed with MTS method; cell apoptosis was detected using flow cytometry, and the levels of IL-1β, IL-6, TNF-α, SOD and MDA were detected with enzyme-linked immunosorbent assay (ELISA). OBJECTIVE Compared with the blank control cells, the cells exposed to a temperature of 52 ℃ showed a significantly decreased survival rate and a lowered SOD activity (P < 0.001) with increased IL-1β and MDA levels (P < 0.01) and markedly increased apoptosis rate and IL-6 level (P < 0.001). Compared with the heat exposure group, amiodarone resulted in significantly decreased survival rate of the atrial myocytes (P < 0.01), obviously decreased SOD activity (P < 0.05), and increased cell apoptosis rate (P < 0.05) and IL-1β, IL-6, MDA and TNF-α levels (P < 0.01 or 0.001). OBJECTIVE Heat exposure induces apoptosis, inflammation and oxidative stress in mouse HL1 atrial myocytes, and amiodarone can enhance the effects of heat exposure to aggravate the cell injuries.
Collapse
Affiliation(s)
- H Zhao
- Department of Cardiovascular Diseases, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Z Tan
- Department of Cardiovascular Diseases, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - L He
- Department of Cardiovascular Diseases, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - S Zhu
- Department of Cardiovascular Diseases, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - R Yan
- Department of Cardiovascular Diseases, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - H Kou
- Department of Cardiovascular Diseases, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - J Peng
- Department of Cardiovascular Diseases, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| |
Collapse
|
29
|
Tan Z, Wang Y, Zhu Z, Liu C. P36.02 CHEK1: Unfavourable Prognostic Hub Gene and Potential Therapeutic Target for Lung Adenocarcinoma. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.732] [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: 11/29/2022]
|
30
|
Tan Z, Lu P, Adewole D, Diarra M, Gong J, Yang C. Iron requirement in the infection of Salmonella and its relevance to poultry health. J APPL POULTRY RES 2021. [DOI: 10.1016/j.japr.2020.09.016] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
|
31
|
Ji S, Li J, Chang L, Zhao C, Jia R, Tan Z, Liu R, Zhang Y, Li Y, Yin G, Guan Y, Xia X, Yi X, Xu J. Peripheral blood T-cell receptor repertoire as a predictor of clinical outcomes in gastrointestinal cancer patients treated with PD-1 inhibitor. Clin Transl Oncol 2021; 23:1646-1656. [PMID: 33583004 DOI: 10.1007/s12094-021-02562-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Accepted: 01/28/2021] [Indexed: 12/20/2022]
Abstract
BACKGROUND Identifying valid biomarkers for patient selection impressively promotes the success of anti-PD-1 therapy. However, the unmet need for biomarkers in gastrointestinal (GI) cancers remains significant. We aimed to explore the predictive value of the circulating T-cell receptor (TCR) repertoire for clinical outcomes in GI cancers who received anti-PD-1 therapy. METHODS 137 pre- and 79 post-treated peripheral blood samples were included. The TCR repertoire was evaluated by sequencing of complementarity-determining region 3 (CDR3) in the TRB gene. The Shannon index was used to measure the diversity of the TCR repertoire, and Morisita's overlap index was used to determine TCR repertoire similarities between pre- and post-treated samples. RESULTS Among all enrolled patients, 76 received anti-PD-1 monotherapy and 61 received anti-PD-1 combination therapy. In the anti-PD-1 monotherapy cohort, patients with higher baseline TCR diversity exhibited a significantly higher disease control rate (77.8% vs. 47.2%; hazard ratio [HR] 3.92; 95% confidence interval [CI] 1.14-13.48; P = 0.030) and a longer progression-free survival (PFS) (median: 6.47 months vs. 2.77 months; HR 2.10; 95% CI 1.16-3.79; P = 0.014) and overall survival (OS) (median: NA vs. 8.97 months; HR 3.53; 95% CI 1.49-8.38; P = 0.004) than those with lower diversity. Moreover, patients with a higher TCR repertoire similarity still showed a superior PFS (4.43 months vs. 1.84 months; HR 13.98; 95% CI 4.37-44.68; P < 0.001) and OS (13.40 months vs. 6.12 months; HR 2.93; 95% CI 1.22-7.03; P = 0.016) even in the cohort with lower baseline diversity. However, neither biomarker showed predictive value in the anti-PD-1 combination therapy cohort. Interestingly, the combination of TCR diversity and PD-L1 expression can facilitate patient stratification in a pooled cohort. CONCLUSION The circulating TCR repertoire can serve as a predictor of clinical outcomes in anti-PD-1 therapy in GI cancers.
Collapse
Affiliation(s)
- S Ji
- Academy of Military Medical Sciences, Academy of Military Sciences, Beijing, China.,Department of Gastrointestinal Oncology, The Fifth Medical Centre, Chinese PLA General Hospital, No. 8 East Street, Fengtai District, Beijing, 100071, China
| | - J Li
- Geneplus-Beijing Institute, Beijing, China
| | - L Chang
- Geneplus-Beijing Institute, Beijing, China
| | - C Zhao
- Department of Gastrointestinal Oncology, The Fifth Medical Centre, Chinese PLA General Hospital, No. 8 East Street, Fengtai District, Beijing, 100071, China
| | - R Jia
- Department of Gastrointestinal Oncology, The Fifth Medical Centre, Chinese PLA General Hospital, No. 8 East Street, Fengtai District, Beijing, 100071, China
| | - Z Tan
- Department of Gastrointestinal Oncology, The Fifth Medical Centre, Chinese PLA General Hospital, No. 8 East Street, Fengtai District, Beijing, 100071, China
| | - R Liu
- Department of Gastrointestinal Oncology, The Fifth Medical Centre, Chinese PLA General Hospital, No. 8 East Street, Fengtai District, Beijing, 100071, China
| | - Y Zhang
- Department of Gastrointestinal Oncology, The Fifth Medical Centre, Chinese PLA General Hospital, No. 8 East Street, Fengtai District, Beijing, 100071, China
| | - Y Li
- Department of Gastrointestinal Oncology, The Fifth Medical Centre, Chinese PLA General Hospital, No. 8 East Street, Fengtai District, Beijing, 100071, China
| | - G Yin
- Geneplus-Beijing Institute, Beijing, China
| | - Y Guan
- Geneplus-Beijing Institute, Beijing, China
| | - X Xia
- Geneplus-Beijing Institute, Beijing, China
| | - X Yi
- Geneplus-Beijing Institute, Beijing, China
| | - J Xu
- Department of Gastrointestinal Oncology, The Fifth Medical Centre, Chinese PLA General Hospital, No. 8 East Street, Fengtai District, Beijing, 100071, China.
| |
Collapse
|
32
|
Yang S, Wang X, Liao W, Li L, Tan Z, Zhu L, Hu P, Cui X, Xing W. High-resolution MRI of the vessel wall helps to distinguish moyamoya disease from atherosclerotic moyamoya syndrome. Clin Radiol 2021; 76:392.e11-392.e19. [PMID: 33583567 DOI: 10.1016/j.crad.2020.12.023] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Accepted: 12/24/2020] [Indexed: 11/25/2022]
Abstract
AIM To evaluate the value of high-resolution magnetic resonance imaging of the vessel wall (VWI) for differentiating moyamoya disease (MMD) from atherosclerotic moyamoya syndrome (AS-MMS). MATERIALS AND METHODS Twenty-one patients with MMD or AS-MMS were assessed retrospectively by two independent raters regarding and magnetic resonance angiography (MRA) stage grading score; collateral development in the lateral fissure and basal ganglia on MRA; and pattern of the thickening of the arterial wall; presence, degree, and pattern of enhancement; presence and distribution of deep tiny flow voids (DTFVs) and collateral development in the lateral fissure and basal ganglia on VWI. After univariate analysis between the two groups, logistic regression models based on imaging findings of MRA or VWI were implemented respectively, and receiver operating characteristic (ROC) curves were generated to compare the discriminatory power of the two imaging methods for diagnosis of MMD. Interrater agreement was analysed using an unweighted Cohen's κ or interclass correlation coefficient (ICC). RESULTS MMD manifested as more concentric thickening, more homogeneous enhancement, higher presence of DTFV, smaller outer-wall boundary area of stenosis or occlusion, and smaller remodelling index on VWI. After Bonferroni-Holm correction for multiple comparisons, for AS-MMS, collaterals in both the lateral fissure and basal ganglia were not usually present on either MRA or VWI. The diagnostic performance of the multivariate logistic regression model based on VWI with an accuracy of 87.1% for classification was higher than MRA. Interrater agreement was moderate or substantial for all the imaging findings. CONCLUSIONS VWI might be a useful and feasible method for differentiating MMD from AS-MMS and a prospective tool for guiding first-line treatment.
Collapse
Affiliation(s)
- S Yang
- Department of Radiology, Xiangya Hospital, Central South University, Changsha 410008, China
| | - X Wang
- Department of Radiology, Xiangya Hospital, Central South University, Changsha 410008, China
| | - W Liao
- Department of Radiology, Xiangya Hospital, Central South University, Changsha 410008, China
| | - L Li
- Department of Radiology, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Z Tan
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha 410008, China
| | - L Zhu
- Department of Radiology, Xiangya Hospital, Central South University, Changsha 410008, China
| | - P Hu
- Department of Radiology, Xiangya Hospital, Central South University, Changsha 410008, China
| | - X Cui
- Department of Radiology, Xiangya Hospital, Central South University, Changsha 410008, China
| | - W Xing
- Department of Radiology, Xiangya Hospital, Central South University, Changsha 410008, China.
| |
Collapse
|
33
|
Zhang X, Wu J, Zhou C, Tan Z, Jiao J. Spatial and temporal organization of jejunal microbiota in goats during animal development process. J Appl Microbiol 2020; 131:68-79. [PMID: 33300169 DOI: 10.1111/jam.14961] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2020] [Revised: 11/25/2020] [Accepted: 11/30/2020] [Indexed: 12/31/2022]
Abstract
AIMS This research aimed to investigate the temporal bacterial colonization relating to non-rumination, transition and rumination phases, together with the spatial organization of microbial community in the jejunal mucosa and digesta of goats. METHODS AND RESULTS This study explored the colonization programme of the jejunal microbiota by employing 16S rRNA amplicon sequencing. The colonization pattern of jejunal bacterial community exhibited an age- and gut region-dependent progression during animal development process. Approximately 268 bacterial signatures contributed to the discrimination between gut regions, with Lactobacillus, Ruminococcus, Eubacterium and Clostridium_sensu_stricto were enriched in the jejunal digesta, and Bacteroides and unclassified bacteria were enriched in the jejunal mucosa. Intriguingly, a shift from Lactobacillus to Butyrivibrio, Eubacterium and Ruminococcus after d 20 was observed for jejunal digesta. In mucosa, Bifidobacterium, Corynebacterium, Faecalibacterium and Roseburia increased with age (P < 0·05) while Arcobacter, Bacteroides and Porphyromonas peaked at d 10. CONCLUSIONS The jejunal bacterial community was settled after solid starter provision, which may mark the potential boundary of a timeframe for intervention in goats. The spatial heterogeneity highlighted the complicacy of ecological niches during manipulation of gut microbiota. SIGNIFICANCE AND IMPACT OF THE STUDY The present study extended the understanding of microbial programming and niche specific in the jejunum among different life stages and the basal cognition of persistent enhancement of nutrient utilization and decline of enteric diseases in ruminants.
Collapse
Affiliation(s)
- X Zhang
- CAS Key Laboratory of Agro-ecological Processes in Subtropical Region, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, Institute of Subtropical Agriculture, The Chinese Academy of Sciences, Changsha, Hunan, P. R. China.,University of the Chinese Academy of Sciences, Beijing, China
| | - J Wu
- CAS Key Laboratory of Agro-ecological Processes in Subtropical Region, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, Institute of Subtropical Agriculture, The Chinese Academy of Sciences, Changsha, Hunan, P. R. China.,University of the Chinese Academy of Sciences, Beijing, China
| | - C Zhou
- CAS Key Laboratory of Agro-ecological Processes in Subtropical Region, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, Institute of Subtropical Agriculture, The Chinese Academy of Sciences, Changsha, Hunan, P. R. China
| | - Z Tan
- CAS Key Laboratory of Agro-ecological Processes in Subtropical Region, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, Institute of Subtropical Agriculture, The Chinese Academy of Sciences, Changsha, Hunan, P. R. China
| | - J Jiao
- CAS Key Laboratory of Agro-ecological Processes in Subtropical Region, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, Institute of Subtropical Agriculture, The Chinese Academy of Sciences, Changsha, Hunan, P. R. China
| |
Collapse
|
34
|
Xu JJ, Zhang LZ, Zhang QH, Guo HW, Tan Z, Wang JF, Jiang LH, Zheng CM, Ge MH, Lan XB. [Clinical application of the gasless unilateral axillary approach in endoscopic thyroid surgery]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2020; 55:913-920. [PMID: 33036505 DOI: 10.3760/cma.j.cn115330-20200225-00126] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the efficacy, safety and advantages of gasless unilateral axillary approach (GUAA) in endoscopic thyroid surgery. Methods: A total of 334 patients who underwent the GUAA endoscopic thyroid surgery (GUAA group) or conventional open thyroid surgery (OS group) in the Department of Head and Neck Surgery of Zhejiang Cancer Hospital from January 2017 to June 2018 were retrospectively analyzed. There were 45 males and 289 females, aged from 12 to 72 years old, of whom 139 patients were assigned to GUAA group and 195 patients to OS group. Pathological results included papillary thyroid carcinoma (282 cases), nodular goiter (41 cases) and thyroid adenoma (11 cases). Surgical exploration development curve of GUAA group was drawn and was divided into two parts: the technical exploration stage and the technical stable stage. Surgical efficiency, incidences of complications, and incision satisfaction were compared between GUAA group in technical stable stage and OS group. SPSS 25.0 software was adopted for statistical analysis. Results: The mean age in GUAA group was younger than that in OS group, with a significant difference [(35.3±9.5) years vs. (48.1±10.6) years, t=11.31, P<0.01]. The cases in the endoscope group were divided into technical exploration stage for 51 cases and technical stable stage for 88 cases according to the exploration and development curve. In unilateral radical thyroidectomy and unilateral thyroid lobectomy, the mean operation time [(90.6±18.6) min and (93.5±22.0) min] and postoperative drainage volumes [(121.5±87.6) ml and (155.5±69.1) ml] of GUAA group in the stable stage were more than those of OS group [(61.6±15.6) min and (46.5±8.4) min] and [(93.2±42.3) ml and (78.9±48.7) ml]. The difference was statistically significant (t=12.28, 7.23, 3.35 and 3.05 respectively, all P<0.05), but there were no significant differences in surgical bleeding volumes between two groups [(12.7±6.8) ml vs. (13.5±7.7) ml, t=0.74, P>0.05 and (16.3±14.1) ml vs. (11.9±5.1) ml, t=1.05, P>0.05]. Compared with OS group, GUAA group had the lower incidence of anterior cervical discomfort during swallowing (2.3% vs. 29.2%, P<0.01) and the higher incision satisfaction score (1.1±0.5 vs. 2.8±0.7, t=21.12, P<0.01), however, GUAA group had the higher incidence of supraclavicular (or infraclavicular) numbness after surgery (5.7% vs. 0, P<0.01). And there was no significant difference in the incidences of temporary recurrent laryngeal nerve injury, bleeding, hematoma, infection, lymphatic leakage or chylous leakage after surgery between two groups (P>0.05). Conclusion: GUAA endoscopic thyroid surgery is a safe method with high cosmetic satisfaction.
Collapse
Affiliation(s)
- J J Xu
- Department of Head and Neck Surgery, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou 310014, China
| | - L Z Zhang
- Second Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - Q H Zhang
- Second Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - H W Guo
- Department of Head and Neck Surgery, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou 310014, China
| | - Z Tan
- Department of Head and Neck Surgery, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou 310014, China
| | - J F Wang
- Department of Head and Neck Surgery, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou 310014, China
| | - L H Jiang
- Department of Head and Neck Surgery, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou 310014, China
| | - C M Zheng
- Department of Head and Neck Surgery, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou 310014, China
| | - M H Ge
- Department of Head and Neck Surgery, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou 310014, China
| | - X B Lan
- Department of Head and Neck Surgery, Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Hangzhou 310022, China
| |
Collapse
|
35
|
Diermayr V, Sarma S, Lee K, Ng P, Tong C, Soon V, Gan B, Qu Z, Tan Z, Han X, Phua L, Poh H, Gan A, Camat D, Weng R, Cheong E, Inoue M, Lezhava A, Tan I, Lim T. 99P Development of a qRT-PCR-based diagnostic test to identify colorectal cancer patients with recurrent R-Spondin gene fusions. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.10.119] [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
|
36
|
Cha SC, Wang H, Tan Z, Joung YJ, Tseng YC, Yeh KH. On Privacy Aware Carriers for Value-Possessed e-Invoices Considering Intelligence Mining. IEEE Trans Emerg Top Comput Intell 2020. [DOI: 10.1109/tetci.2019.2938547] [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: 11/09/2022]
|
37
|
Ma D, Shen HT, Zhao JJ, Chang Q, Tian LB, Ma Y, Li L, Tan Z. Grape-seed polyphenols inhibit AAA in mice via regulation of macrophage polarization. ACTA ACUST UNITED AC 2020; 121:680-685. [PMID: 32990018 DOI: 10.4149/bll_2020_106] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
AIM Abdominal aortic aneurysm (AAA) is characterized by macrophage polarization, and at present, no drug therapy is available. Although grape-seed polyphenols (GSP) showed an anti-AAA effect, the role of GSP in the phenotype shift in macrophages remains unknown. METHOD The main phenolic compounds in GSP were determined by LC-MS. Male C57BL/6 mice were divided into four equal groups, namely sham group, CaPO4 group, CaPO4+GSP low-dose group, and CaPO4+GSP high-dose group. GSP was administered intragastrically after CaPO4 application. Molecular expressions were histologically evaluated and analyzed by various staining assays and FACS. RESULTS GSP administration inhibited CaPO4-induced AAA formation, which correlated with a decrease in macrophage infiltration and retainment of vascular smooth muscle layer as compared to those in the CaPO4 group. FACS assay showed that the GSP administration dose-dependently decreased the CD54 expression (low-dose group: 11.4 ± 2.1 % and high-dose group: 4.8 ± 1.4 % vs 23.2 ± 3.6 %; p < 0.05 and p < 0.01, respectively) and increased the CD206 expression of F4/80-positive cells in GSP-administered groups as compared with that in CaPO4-injured aortas in the CaPO4 group (low-dose group: 22.4 ± 3.3 % and high-dose group: 26.7 ± 4.2 % vs 8.1 ± 1.3 %; p < 0.05 and p < 0.01, respectively). CONCLUSIONS GSP could be a pharmacologically potent agent in the treatment of AAA (Tab. 1, Fig. 3,Ref. 20). Text in PDF www.elis.sk Keywords: grape-seed polyphenols, abdominal aortic aneurysm, macrophage, inflammatory, polarization.
Collapse
|
38
|
Wang X, Zhang Y, Zhao M, Mao XC, Tan Z, Shang JB, Wang XL, Wang KJ. [Predictive analysis of distant metastasis after primary treatment of papillary thyroid cancer in patients under 18 years old]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2020; 55:664-670. [PMID: 32668875 DOI: 10.3760/cma.j.cn115330-20200115-00025] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the distant metastasis after primary treatment of papillary thyroid cancer (PTC) in children and adolescents. Methods: A retrospective analysis of 180 cases (54 boys and 126 girls, with an age range of 6-18 years) with PTC treated at the Chinese Medical Academy Cancer Hospital and Zhejiang Cancer Hospital from January 1, 2001 to December 31, 2014 was performed. Patients' clinical and pathological data were collected. The follow-up results were statistically analyzed. The distant metastasis rate during the follow-up period was analyzed by the Kaplan-Meier method. Log-Rank test was used for univariate analysis and Cox regression model was established in multivariate analysis. Results: Twenty-four cases (13.3%) had distant metastases during following-up with a median of 92 months. The Log-Rank test showed that the younger age ≤15 years old (χ(2)=11.803, P=0.001), the larger tumor diameter >20 mm (χ(2)=5.776, P=0.016), multifocal (χ(2)=11.205, P=0.001), bilateral tumor distribution (χ(2)=19.804, P=0.001), invaded capsule (χ(2)=10.808, P=0.001), and bilateral lymph nodes metastasis (χ(2)=6.278, P=0.012) were risk factors for distant metastasis after initial treatment. The Cox regression analysis showed that age ≤15 years (hazard ratio [95% confidence interval]: 4.08[1.504-11.111], P=0.006) and bilateral tumor distribution (hazard ratio [95% confidence interval]: 4.77[1.903-11.966], P=0.001) were independent risk factors for distant metastasis after initial treatment. The risk factors for local recurrence and distant metastasis were similar, but the local recurrence could not be a significant predictor for distant metastasis. It was indicated that distant metastasis rate was lower in patients with total thyroidectomy in multifocal lesions groups (χ(2)=5.891, P=0.015). Conclusions: Age, tumor size, invaded capsule, bilateral lymph nodes metastasis, multifocal and bilateral lesions are factors for predicting distant metastasis after primary treatment of PTC in children and adolescents. Total thyroidectomy is recommended for patients with multifocal and bilateral lesions.
Collapse
Affiliation(s)
- X Wang
- Department of Head and Neck Surgery, Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Institute of Cancer and Basic Medicine (IBMC), Chinese Academy of Sciences, Hangzhou 310022, China
| | - Y Zhang
- Department of Head and Neck Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - M Zhao
- Department of Head and Neck Surgery, Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Institute of Cancer and Basic Medicine (IBMC), Chinese Academy of Sciences, Hangzhou 310022, China
| | - X C Mao
- Department of Head and Neck Surgery, Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Institute of Cancer and Basic Medicine (IBMC), Chinese Academy of Sciences, Hangzhou 310022, China
| | - Z Tan
- Department of Head Neck and Thyroid Surgery, Zhejiang Provincial People's Hospital, Hangzhou 310014, China
| | - J B Shang
- Department of Head and Neck Surgery, Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Institute of Cancer and Basic Medicine (IBMC), Chinese Academy of Sciences, Hangzhou 310022, China
| | - X L Wang
- Department of Head and Neck Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - K J Wang
- Department of Head and Neck Surgery, Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Institute of Cancer and Basic Medicine (IBMC), Chinese Academy of Sciences, Hangzhou 310022, China
| |
Collapse
|
39
|
Tan Z, Koh H, Murugan P, Talchai S, Khemarangsan V. Improved self-renewal and differentiation potentials of mesenchymal Stem Cells by HPL-based xeno free Cell Rev™ mSC ExHQ 2.0. Cytotherapy 2020. [DOI: 10.1016/j.jcyt.2020.03.191] [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]
|
40
|
Abstract
Abstract
Data fusion has always been a hot research topic in human-centric computing and extended with the development of artificial intelligence. Generally, the coupled data fusion algorithm usually utilizes the information from one data set to improve the estimation accuracy and explain related latent variables of other coupled datasets. This paper proposes several kinds of coupled images decomposition algorithms based on the coupled matrix and tensor factorization-optimization (CMTF-OPT) algorithm and the flexible coupling algorithm, which are termed the coupled images factorization-optimization (CIF-OPT) algorithm and the modified flexible coupling algorithm respectively. The theory and experiments show that the effect of the CIF-OPT algorithm is robust under the influence of different noises. Particularly, the CIF-OPT algorithm can accurately restore an image with missing some data elements. Moreover, the flexible coupling model has better estimation performance than a hard coupling. For high-dimensional images, this paper adopts the compressed data decomposition algorithm that not only works better than uncoupled ALS algorithm as the image noise level increases, but saves time and cost compared to the uncompressed algorithm.
Collapse
|
41
|
Tan Z, Chan S, Bin Abdul Rahman A, Chandramohan S, Damodharan K, Gogna A, Irani F, Leong S, Lo R, Karaddi Venkatanarasimha N, Patel A, Tan B, Too C, Zhuang K, Bin Sulaiman M, Tan C, Tze Tec C, Win H. 3:18 PM Abstract No. 15 Cutting balloon followed by drug-eluting balloon angioplasty for recurrent venous lesions in dialysis access; interim analysis of a single-arm prospective observational study. J Vasc Interv Radiol 2020. [DOI: 10.1016/j.jvir.2019.12.035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
|
42
|
Yang M, Liang Y, Huang S, Zhang J, Wang J, Chen H, Ye Y, Gao X, Wu Q, Tan Z. Isolation and Characterization of the Novel Phages vB_VpS_BA3 and vB_VpS_CA8 for Lysing Vibrio parahaemolyticus. Front Microbiol 2020; 11:259. [PMID: 32153543 PMCID: PMC7047879 DOI: 10.3389/fmicb.2020.00259] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [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: 09/17/2019] [Accepted: 02/04/2020] [Indexed: 01/01/2023] Open
Abstract
Accumulating evidence has indicated that the multiple drug resistant Vibrio parahaemolyticus may pose a serious threat to public health and economic concerns for humans globally. Here, two lytic bacteriophages, namely vB_VpS_BA3 and vB_VpS_CA8, were isolated from sewage collected in Guangzhou, China. Electron microscopy studies revealed both virions taxonomically belonged to the Siphoviridae family with icosahedral head and a long non-contractile tail. The double-stranded DNA genome of phage BA3 was composed of 58648 bp with a GC content of 46.30% while phage CA8 was 58480 bp with an average GC content of 46.42%. In total, 85 putative open reading frames (ORFs) were predicted in the phage BA3 genome while 84 were predicted in that of CA8. The ORFs were associated with phage structure, packing, host lysis, DNA metabolism, and additional functions. Furthermore, average nucleotide identity analysis, comparative genomic features and phylogenetic analysis revealed that BA3 and CA8 represented different isolates but novel members of the family, Siphoviridae. Regarding the host range of the 61 V. parahaemolyticus isolates, BA3 and CA8 had an infectivity of 8.2 and 36.1%, respectively. Furthermore, ∼100 plaque-forming units (pfu)/cell for phage BA3 and ∼180 pfu/cell for phage CA8 were determined to be the viral load under laboratory growth conditions. Accordingly, the phage-killing assay in vitro revealed that phage CA8 achieved approximately 3.65 log unit reductions. The present results indicate that CA8 is potentially applicable for biological control of multidrug resistant V. parahaemolyticus.
Collapse
Affiliation(s)
- Meiyan Yang
- College of Agriculture, South China Agricultural University, Guangzhou, China
- State Key Laboratory of Applied Microbiology Southern China, Guangdong Provincial Key Laboratory of Microbiology Culture Collection and Application, Guangdong Open Laboratory of Applied Microbiology, Guangdong Institute of Microbiology, Guangzhou, China
| | - Yongjian Liang
- College of Agriculture, South China Agricultural University, Guangzhou, China
- State Key Laboratory of Applied Microbiology Southern China, Guangdong Provincial Key Laboratory of Microbiology Culture Collection and Application, Guangdong Open Laboratory of Applied Microbiology, Guangdong Institute of Microbiology, Guangzhou, China
| | - Shixuan Huang
- State Key Laboratory of Applied Microbiology Southern China, Guangdong Provincial Key Laboratory of Microbiology Culture Collection and Application, Guangdong Open Laboratory of Applied Microbiology, Guangdong Institute of Microbiology, Guangzhou, China
| | - Jumei Zhang
- College of Agriculture, South China Agricultural University, Guangzhou, China
- State Key Laboratory of Applied Microbiology Southern China, Guangdong Provincial Key Laboratory of Microbiology Culture Collection and Application, Guangdong Open Laboratory of Applied Microbiology, Guangdong Institute of Microbiology, Guangzhou, China
| | - Jing Wang
- State Key Laboratory of Applied Microbiology Southern China, Guangdong Provincial Key Laboratory of Microbiology Culture Collection and Application, Guangdong Open Laboratory of Applied Microbiology, Guangdong Institute of Microbiology, Guangzhou, China
| | - Hanfang Chen
- College of Agriculture, South China Agricultural University, Guangzhou, China
- State Key Laboratory of Applied Microbiology Southern China, Guangdong Provincial Key Laboratory of Microbiology Culture Collection and Application, Guangdong Open Laboratory of Applied Microbiology, Guangdong Institute of Microbiology, Guangzhou, China
| | - Yuanming Ye
- College of Agriculture, South China Agricultural University, Guangzhou, China
- State Key Laboratory of Applied Microbiology Southern China, Guangdong Provincial Key Laboratory of Microbiology Culture Collection and Application, Guangdong Open Laboratory of Applied Microbiology, Guangdong Institute of Microbiology, Guangzhou, China
| | - Xiangyang Gao
- Guangdong Provincial Key Laboratory of Nutraceuticals and Functional Foods, College of Food Science, South China Agricultural University, Guangzhou, China
| | - Qingping Wu
- College of Agriculture, South China Agricultural University, Guangzhou, China
- State Key Laboratory of Applied Microbiology Southern China, Guangdong Provincial Key Laboratory of Microbiology Culture Collection and Application, Guangdong Open Laboratory of Applied Microbiology, Guangdong Institute of Microbiology, Guangzhou, China
| | - Zhiyuan Tan
- College of Agriculture, South China Agricultural University, Guangzhou, China
| |
Collapse
|
43
|
Yang K, Zhang Z, Li Y, Chen S, Chen W, Ding H, Tan Z, Ma Z, Qiao Z. Expression and distribution of HIF-1α, HIF-2α, VEGF, VEGFR-2 and HIMF in the kidneys of Tibetan sheep, plain sheep and goat. Folia Morphol (Warsz) 2020; 79:748-755. [PMID: 32020576 DOI: 10.5603/fm.a2020.0011] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Revised: 01/29/2020] [Accepted: 01/29/2020] [Indexed: 11/25/2022]
Abstract
BACKGROUND The objective of this study was to detect the expression and distribution characteristics of five proteins (the hypoxia-inducible factor 1alpha [HIF-1a], HIF-2a, vascular endothelial growth factor [VEGF], VEGF-2 receptor [VEGFR-2] and hypoxia-induced mitogenic factor [HIMF]) in kidney of Tibetan sheep, plain sheep and goat. The results will provide the basic information for the comparative study of sheep breeds living at different altitudes. MATERIALS AND METHODS The kidney tissues were collected from healthy adult Tibetan sheep, plain sheep and goats and made into paraffin sections. Histological characteristics were assessed by haematoxylin and eosin staining. Expressions of HIF-1a, HIF-2a, VEGF, VEGFR-2 and HIMF proteins were measured by immunohistochemical staining. RESULTS Immunohistochemistry results showed that the positive expression signals of HIF-1a, HIF-2a, VEGF and VEGFR-2 were detected in epithelial cells of renal tubules and collecting tubules, renal corpuscles in the kidneys of the three sheep breeds. Positive expression signals of HIMF were detected in epithelial cells of proximal tubules and distal tubules in Tibetan sheep and epithelial cells of distal tubules in goat. Immunostaining intensity of HIF-1a, HIF-2a, VEGF and VEGFR-2 proteins in Tibetan sheep was significantly higher than that in both plain sheep and goat (p < 0.05). Immunostaining intensity of HIMF in Tibetan sheep was higher than goat (p < 0.05). Positive expression signals of HIMF were not detected in plain sheep. CONCLUSIONS The expression and distribution characteristics of HIF-1a, HIF-2a, VEGF, VEGFR-2 and HIMF in the studied kidney tissues suggested that these proteins may be related to the physiological regulation of Tibetan sheep kidney in hypoxia environment, and therefore might be important regulating proteins for Tibetan sheep to adapt to high altitude hypoxia environment.
Collapse
Affiliation(s)
- K Yang
- College of Life Science and Engineering, Northwest Minzu University, Lanzhou, P.R. China
| | - Z Zhang
- College of Life Science and Engineering, Northwest Minzu University, Lanzhou, P.R. China.
| | - Y Li
- College of Life Science and Engineering, Northwest Minzu University, Lanzhou, P.R. China
| | - S Chen
- College of Life Science and Engineering, Northwest Minzu University, Lanzhou, P.R. China
| | - W Chen
- College of Life Science and Engineering, Northwest Minzu University, Lanzhou, P.R. China
| | - H Ding
- College of Life Science and Engineering, Northwest Minzu University, Lanzhou, P.R. China
| | - Z Tan
- College of Life Science and Engineering, Northwest Minzu University, Lanzhou, P.R. China
| | - Z Ma
- Key Laboratory of Biotechnology and Bioengineering of State Ethnic Affairs Commission, Biomedical Research Center, Northwest Minzu University, Lanzhou, P.R. China
| | - Z Qiao
- Gansu Tech Innovation Center of Animal Cell, Biomedical Research Center, Northwest Minzu University, Lanzhou, P.R. China
| |
Collapse
|
44
|
Abstract
Summary
Propensity scores are widely used with inverse probability weighting to estimate treatment effects in observational studies. We study calibrated estimation as an alternative to maximum likelihood estimation for fitting logistic propensity score models. We show that, with possible model misspecification, minimizing the expected calibration loss underlying the calibrated estimators involves reducing both the expected likelihood loss and a measure of relative errors between the limiting and true propensity scores, which governs the mean squared errors of inverse probability weighted estimators. Furthermore, we derive a regularized calibrated estimator by minimizing the calibration loss with a lasso penalty. We develop a Fisher scoring descent algorithm for computing the proposed estimator and provide a high-dimensional analysis of the resulting inverse probability weighted estimators, leveraging the control of relative errors of propensity scores for calibrated estimation. We present a simulation study and an empirical application to demonstrate the advantages of the proposed methods over maximum likelihood and its regularization. The methods are implemented in the R package RCAL.
Collapse
Affiliation(s)
- Z Tan
- Department of Statistics, Rutgers University, 110 Frelinghuysen Road, Piscataway, New Jersey 08854, U.S.A
| |
Collapse
|
45
|
Thomson C, Wadhaj I, Tan Z, Al-Dubai A. Mobility Aware Duty Cycling Algorithm (MADCAL) A Dynamic Communication Threshold for Mobile Sink in Wireless Sensor Network. Sensors (Basel) 2019; 19:s19224930. [PMID: 31726741 PMCID: PMC6891301 DOI: 10.3390/s19224930] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Revised: 11/05/2019] [Accepted: 11/08/2019] [Indexed: 11/16/2022]
Abstract
The hotspot issue in wireless sensor networks, with nodes nearest the sink node losing energy fastest and degrading network lifetime, is a well-referenced problem. Mobile sink nodes have been proposed as a solution to this. They do not completely remove the hotspot problem though, with nodes the sink passes most closely still expending more energy than others. This study proposes a lightweight algorithm, located in the media access control (MAC) layer of static nodes and utilising knowledge of predictable sink node mobility. This is in order to create a dynamic communication threshold between static nodes and the sink, within which static nodes awaken, lessening competition for sink communication between nodes. In utilising predictable mobility and factors already known to the static node, such as location and interference range, there is no need for energy-consuming messaging. Analysis and simulation results, tested on a lightweight implementation of a carrier-sense multiple-access-based MAC protocol, show a significant improvement in energy consumption in both controlled and random environments, with frame delivery improved to the point where sink speed is negated. This is when compared to the existing duty cycling approach.
Collapse
|
46
|
Zou B, Wang P, Liu Z, Xia J, Chen B, Tan Z. Biomimetic oxidase based on functionalized mesoporous SiO2 and metalloporphyrin for 5-hydroxymethylfurfural conversion. Process Biochem 2019. [DOI: 10.1016/j.procbio.2019.07.020] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
|
47
|
Elghandour MMY, Khusro A, Adegbeye MJ, Tan Z, Abu Hafsa SH, Greiner R, Ugbogu EA, Anele UY, Salem AZM. Dynamic role of single-celled fungi in ruminal microbial ecology and activities. J Appl Microbiol 2019; 128:950-965. [PMID: 31463982 DOI: 10.1111/jam.14427] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [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: 05/05/2019] [Revised: 08/05/2019] [Accepted: 08/16/2019] [Indexed: 12/24/2022]
Abstract
In ruminants, high fermentation capacity is necessary to develop more efficient ruminant production systems. Greater level of production depends on the ability of the microbial ecosystem to convert organic matter into precursors of milk and meat. This has led to increased interest by animal nutritionists, biochemists and microbiologists in evaluating different strategies to manipulate the rumen biota to improve animal performance, production efficiency and animal health. One of such strategies is the use of natural feed additives such as single-celled fungi yeast. The main objectives of using yeasts as natural additives in ruminant diets include; (i) to prevent rumen microflora disorders, (ii) to improve and sustain higher production of milk and meat, (iii) to reduce rumen acidosis and bloat which adversely affect animal health and performance, (iv) to decrease the risk of ruminant-associated human pathogens and (v) to reduce the excretion of nitrogenous-based compounds, carbon dioxide and methane. Yeast, a natural feed additive, has the potential to enhance feed degradation by increasing the concentration of volatile fatty acids during fermentation processes. In addition, microbial growth in the rumen is enhanced in the presence of yeast leading to the delivery of a greater amount of microbial protein to the duodenum and high nitrogen retention. Single-celled fungi yeast has demonstrated its ability to increase fibre digestibility and lower faecal output of organic matter due to improved digestion of organic matter, which subsequently improves animal productivity. Yeast also has the ability to alter the fermentation process in the rumen in a way that reduces methane formation. Furthermore, yeast inclusion in ruminant diets has been reported to decrease toxins absorption such as mycotoxins and promote epithelial cell integrity. This review article provides information on the impact of single-celled fungi yeast as a feed supplement on ruminal microbiota and its function to improve the health and productive longevity of ruminants.
Collapse
Affiliation(s)
- M M Y Elghandour
- Facultad de Medicina Veterinaria y Zootecnia, Universidad Autónoma del Estado de México, Estado de México, México
| | - A Khusro
- Research Department of Plant Biology and Biotechnology, Loyola College, Nungambakkam, Chennai, Tamil Nadu, India
| | - M J Adegbeye
- Department of Animal Science, College of Agriculture and Natural Sciences, Joseph Ayo Babalola University, Ikeji-Arakeji, Ilesha, Nigeria
| | - Z Tan
- Institute of Subtropical Agriculture, The Chinese Academy of Sciences, Hunan, P.R. China
| | - S H Abu Hafsa
- Department of Livestock Research, Arid Lands Cultivation Research Institute, City of Scientific Research and Technological Applications, New Borg El-Arab, Alexandria, Egypt
| | - R Greiner
- Department of Food Technology and Bioprocess Engineering, Max Rubner-Institut, Federal Research Institute of Nutrition and Food, Karlsruhe, Germany
| | - E A Ugbogu
- Department of Biochemistry, Abia State University, Uturu, Abia State, Nigeria
| | - U Y Anele
- North Carolina Agricultural and Technical State University, Greensboro, NC, USA
| | - A Z M Salem
- Facultad de Medicina Veterinaria y Zootecnia, Universidad Autónoma del Estado de México, Estado de México, México
| |
Collapse
|
48
|
Tan Z, Liu W, Guo H, Hu K, Zhao R. Severe toxic effects of low-dose methotrexate treatment for placenta accreta in a patient with methylenetetrahydrofolate reductase mutations. J Clin Pharm Ther 2019; 45:214-217. [PMID: 31545520 DOI: 10.1111/jcpt.13050] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [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: 10/12/2018] [Revised: 02/04/2019] [Accepted: 08/23/2019] [Indexed: 11/27/2022]
Abstract
WHAT IS KNOWN AND OBJECTIVE Low-dose methotrexate (LDMTX) has been widely used for many decades in clinical settings, with good safety profiles compared with those of high-dose methotrexate. LDMTX is also used as one of the off-label conservative therapies in treating placenta accreta (PA). Until now, only a few mild adverse drug reactions (ADRs) have been published after short-term use of LDMTX, and no severe cases have been reported. CASE SUMMARY We present a case of a 30-year-old female who developed acute severe oral ulcerative mucositis with degree IV myelosuppression and degree III hepatic injury, after three doses of LDMTX to treat placenta accrete. The symptoms gradually improved after leucovorin rescue and supportive treatments. WHAT IS NEW AND CONCLUSION The present case provides the first severe ADR report for the short-term use of LDMTX for treating PA, indicating that potentially life-threatening complications can also occur when using LDMTX. Early recognition and immediate leucovorin rescue could result in a favourable outcome.
Collapse
Affiliation(s)
- Zhiyuan Tan
- Department of Pharmacy, Peking University Third Hospital, Beijing, China.,Department of Pharmacy Administration and Clinical Pharmacy, School of Pharmaceutical Science, Peking University, Beijing, China
| | - Wei Liu
- Department of Pharmacy, Peking University Third Hospital, Beijing, China.,Therapeutic Drug Monitoring and Clinical Toxicity Center, Peking University, Beijing, China
| | - Hua Guo
- Department of Pathology & Cell Biology, Columbia University Medical Center, New York, NY, USA
| | - Kai Hu
- Department of Hematology, Peking University Third Hospital, Beijing, China
| | - Rongsheng Zhao
- Department of Pharmacy, Peking University Third Hospital, Beijing, China.,Therapeutic Drug Monitoring and Clinical Toxicity Center, Peking University, Beijing, China
| |
Collapse
|
49
|
Wang ZS, Tan Z, Wu ZH, Zhan SX, Guo WD, Liu SG, Zhang L. Identification of downstream target genes regulated by CX43 in hepatocellular carcinoma. Neoplasma 2019; 66:870-878. [PMID: 31307202 DOI: 10.4149/neo_2018_181225n995] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2018] [Accepted: 03/20/2019] [Indexed: 11/08/2022]
Abstract
The aim of study was to identify the downstream target genes of CX43 by Human Transcriptome Array. Therefore, a gene microarray was generated which consists of CX43-overexpressed hepatocellular carcinoma (HCC) cells transfected with the constructed plasmid and negative controls to identify candidate genes. Integrated bioinformatic analysis was used to clarify biological functions of the identified genes, including Gene Ontology (GO), Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway, protein-protein interaction network, and survival analysis. The candidate genes were further validated by qRT-PCR in liver cancer tissues and CX43-silenced HCC cells. We have found the mRNA and protein levels of CX43 significantly upregulated in HCC cells transfected with CX43 constructed plasmid. We identified 928 differentially expressed genes including 394 upregulated and 534 downregulated genes, enriched in the cancer related functions and pathways by GO and KEGG pathway analysis. The protein-protein interaction network revealed 9 hub genes in this study. Statistical analysis indicated that upregulation of RALA and SRC was associated with poor prognosis in liver cancer. The differential expression of 2 candidate genes were further validated in HCC cells and tissues. In conclusion, protein-coding genes RALA and SRC could be target genes of CX43 and therapeutic targets for hepatocellular carcinoma.
Collapse
Affiliation(s)
- Z S Wang
- Department of Hepatobiliary and Pancreatic Surgery, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, China
| | - Z Tan
- Department of Hepatobiliary and Pancreatic Surgery, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, China
| | - Z H Wu
- Department of Hepatobiliary and Pancreatic Surgery, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, China
| | - S X Zhan
- Department of Hepatobiliary and Pancreatic Surgery, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, China
| | - W D Guo
- Department of Hepatobiliary and Pancreatic Surgery, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, China
| | - S G Liu
- Prenatal Diagnosis Center, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, China
| | - L Zhang
- Prenatal Diagnosis Center, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, China
| |
Collapse
|
50
|
|