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Sun R, Liu J, Yu M, Xia M, Zhang Y, Sun X, Xu Y, Cui X. Paeoniflorin Ameliorates BiPN by Reducing IL6 Levels and Regulating PARKIN-Mediated Mitochondrial Autophagy. Drug Des Devel Ther 2022; 16:2241-2259. [PMID: 35860525 PMCID: PMC9289176 DOI: 10.2147/dddt.s369111] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Accepted: 07/02/2022] [Indexed: 11/23/2022] Open
Abstract
Background Bortezomib-induced peripheral neuropathy (BiPN) is a common complication of multiple myeloma (MM) treatment that seriously affects the quality of life of patients. The purpose of the present study was to explore the therapeutic effect of paeoniflorin on BiPN and its possible mechanism. Methods ELISA was used to measure the level of interleukin-6 (IL6) in the plasma of MM patients, and bioinformatics analysis was used to predict the mechanism underlying the effect of paeoniflorin on peripheral neuropathy. Cell and animal models of BiPN were constructed to evaluate mitochondrial function by measuring cell viability and mitochondrial quality and labeling mitochondria with MitoTracker Green. Nerve injury in mice with BiPN was assessed by behavioral tests, evaluation of motor nerve conduction velocity, hematoxylin-eosin (HE) staining, electron microscopy and analysis of the levels of reactive oxygen species (ROS). Western blotting and immunohistochemistry (IHC) were used to assess the expression of autophagy-related proteins. Results In MM patients, IL6 levels were positively correlated with the degree of PN. The results of bioinformatics analysis suggested that paeoniflorin ameliorated PN by altering inflammation levels and mitochondrial autophagy. Paeoniflorin increased PC12 cell viability and mitochondrial autophagy levels, alleviated mitochondrial damage, and reduced IL6 levels. In addition, paeoniflorin effectively improved the behavior of mice with BiPN, relieved sciatic nerve injury in mice, increased the expression of LC3II/I, beclin-1, and Parkin in sciatic nerve cells, and increased the expression of LC3B and Parkin in the nerve tissue. Conclusion The present study confirmed that paeoniflorin significantly ameliorated peripheral neuropathy (PN) caused by bortezomib, possibly by reducing IL6 levels to regulate PARKIN-mediated mitochondrial autophagy and mitochondrial damage.
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Affiliation(s)
- Runjie Sun
- College of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, 250014, People’s Republic of China
| | - Jiang Liu
- Department of Foreign Affairs Office, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, 250014, People’s Republic of China
| | - Manya Yu
- College of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, 250014, People’s Republic of China
| | - Mengting Xia
- First School of Clinical Medicine, Shandong University of Traditional Chinese Medicine, Jinan, 250014, People’s Republic of China
| | - Yanyu Zhang
- College of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, 250014, People’s Republic of China
| | - Xiaoqi Sun
- College of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, 250014, People’s Republic of China
| | - Yunsheng Xu
- Second School of Clinical Medicine, the Second Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, 250001, People’s Republic of China
- Correspondence: Yunsheng Xu; Xing Cui, Second School of Clinical Medicine, the Second Affiliated Hospital of Shandong University of Traditional Chinese Medicine, 1 Jingba Road, Jinan, 250001, People’s Republic of China, Email ;
| | - Xing Cui
- Second School of Clinical Medicine, the Second Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, 250001, People’s Republic of China
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Qin W, Zou B, Fan X, Fan B, Wang S, Wang L. Transformation from Small Cell to Squamous Cell Carcinoma in a Thymic Carcinoma Patient with a Durable Response to Anlotinib: A Case Report. Cancer Manag Res 2022; 14:1595-1602. [PMID: 35521088 PMCID: PMC9063945 DOI: 10.2147/cmar.s362858] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Accepted: 04/22/2022] [Indexed: 01/06/2023] Open
Abstract
The most common pathologic type of thymic carcinoma (TC) is squamous cell carcinoma (SCC). Small cell carcinoma is relatively rare, accounting for approximately 2% to 5% of all thymic tumors. Histologic transformation of TC has not yet been reported. Available treatments for TC patients who progress after first-line therapy are limited, which contributes to their poor prognosis. We reported an extraordinary case of a 66-year-old man who was diagnosed with thymic small cell carcinoma that transformed into SCC after third-line treatment. Surprisingly, the patient had a progression-free survival (PFS) of 25 months and an overall survival (OS) of 10 years on anlotinib as fourth-line therapy. The tolerance was well. Thus, anlotinib may be a safe and promising treatment for TC patients, especially those who undergo histologic transformation.
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Affiliation(s)
- Wenru Qin
- Department of Oncology, Weifang Medical University, Weifang, Shandong, People’s Republic of China
- Department of Radiation Oncology, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, Shandong, People’s Republic of China
| | - Bing Zou
- Department of Radiation Oncology, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, Shandong, People’s Republic of China
| | - Xinyu Fan
- Department of Radiation Oncology, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, Shandong, People’s Republic of China
- Department of Oncology, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, People’s Republic of China
| | - Bingjie Fan
- Department of Radiation Oncology, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, Shandong, People’s Republic of China
| | - Shijiang Wang
- Department of Radiation Oncology, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, Shandong, People’s Republic of China
| | - Linlin Wang
- Department of Radiation Oncology, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, Shandong, People’s Republic of China
- Correspondence: Linlin Wang, Department of Radiation Oncology, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jiyan Road 440, Jinan, Shandong, 250117, People’s Republic of China, Tel +86-531-67626142, Email
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Zhao D, Liu Y, Chen S, Xu Z, Yang X, Shen H, Zhang S, Li Y, Zhang H, Zou C, Ma X. Predictive Value of Blood Urea Nitrogen to Albumin Ratio in Long-Term Mortality in Intensive Care Unit Patients with Acute Myocardial Infarction: A Propensity Score Matching Analysis. Int J Gen Med 2022; 15:2247-2259. [PMID: 35256854 PMCID: PMC8898044 DOI: 10.2147/ijgm.s349722] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Accepted: 02/15/2022] [Indexed: 12/22/2022] Open
Abstract
Background Blood urea nitrogen to albumin ratio (BAR) has been implicated in predicting outcomes of various inflammatory-related diseases. However, the predictive value of BAR in long-term mortality in patients with acute myocardial infarction (AMI) has not yet been evaluated. Methods In this retrospective cohort study, the patients were recruited from the Medical Information Mart for Intensive Care III (MIMIC III) database and categorized into two groups by a cutoff value of BAR. Kaplan–Meier (K-M) analysis and Cox proportional hazard model were performed to determine the predictive value of BAR in long-term mortality following AMI. In order to adjust the baseline differences, a 1:1 propensity score matching (PSM) was carried out and the results were further validated. Results A total of 1827 eligible patients were enrolled. The optimal cutoff value of BAR for four-year mortality was 7.83 mg/g. Patients in the high BAR group tended to have a longer intensive care unit (ICU) stay and a higher rate of one-, two-, three- and four-year mortality (all p<0.001) compared with those in the low BAR group. K-M curves indicated a significant difference in four-year survival (p<0.001) between low and high BAR groups. The Cox proportional hazards model showed that higher BAR (>7.83) was independently associated with increased four-year mortality in the entire cohort, with a hazard ratio (HR) of 1.478 [95% CI (1.254–1.740), p<0.001]. After PSM, the baseline characteristics of 312 pairs of patients in the high and low BAR groups were well balanced, and similar results were observed in K-M curve (p=0.003). Conclusion A higher BAR (>7.83) was associated with four-year mortality in patients with AMI. As an easily available biomarker, BAR can predict the long-term mortality in AMI patients independently.
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Affiliation(s)
- Diming Zhao
- Department of Cardiovascular Surgery, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, 250021, People’s Republic of China
| | - Yilin Liu
- Department of Ophthalmology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, 250021, People’s Republic of China
| | - Shanghao Chen
- Department of Cardiovascular Surgery, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, 250021, People’s Republic of China
| | - Zhenqiang Xu
- Department of Cardiovascular Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, 250021, People’s Republic of China
- Department of Cardiovascular Surgery, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong, 250021, People’s Republic of China
| | - Xiaomei Yang
- Department of Anesthesiology, Shandong Provincial Hospital affiliated to Shandong University, Jinan, Shandong, 250021, People’s Republic of China
| | - Hechen Shen
- Department of Cardiovascular Surgery, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, 250021, People’s Republic of China
| | - Shijie Zhang
- Department of Cardiovascular Surgery, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, 250021, People’s Republic of China
| | - Yi Li
- Department of Cardiovascular Surgery, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, 250021, People’s Republic of China
| | - Haizhou Zhang
- Department of Cardiovascular Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, 250021, People’s Republic of China
- Department of Cardiovascular Surgery, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong, 250021, People’s Republic of China
| | - Chengwei Zou
- Department of Cardiovascular Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, 250021, People’s Republic of China
- Department of Cardiovascular Surgery, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong, 250021, People’s Republic of China
| | - Xiaochun Ma
- Department of Cardiovascular Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, 250021, People’s Republic of China
- Department of Cardiovascular Surgery, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong, 250021, People’s Republic of China
- Correspondence: Xiaochun Ma, Tel +8615169196737, Email
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Li X, Zhou W, Wang L, Ye Y, Li T. Transcranial Direct Current Stimulation Alleviates the Chronic Pain of Osteoarthritis by Modulating NMDA Receptors in Midbrain Periaqueductal Gray in Rats. J Pain Res 2022; 15:203-214. [PMID: 35115824 PMCID: PMC8801364 DOI: 10.2147/jpr.s333454] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Accepted: 01/18/2022] [Indexed: 12/11/2022] Open
Abstract
Purpose Osteoarthritis (OA) is the most common cause to lead to chronic pain. Transcranial direct current stimulation (tDCS) has been widely used to treat nerve disorders and chronic pain. The benefits of tDCS for chronic pain are apparent, but its analgesic mechanism is still unclear. This study observed the analgesic effects of tDCS on OA-induced chronic pain and the changes of NMDA receptor levels in PAG after tDCS treatment in rats to explore the analgesic mechanism of tDCS. Methods After establishing chronic pain by injecting monosodium iodoacetate (MIA) into the rat ankle joint, the rats received tDCS for 14 consecutive days (20 min/day). Before tDCS treatment, Ifenprodil (the selective antagonist of NMDAR2B) was given to rats in different ways: intracerebroventricular (i.c.v.) injection or intraperitoneal (i.p.) injection. The Von Frey and hot plate tests were applied to assess the pain-related behaviors at different time points. The expression level of NMDAR2B was evaluated in midbrain periaqueductal gray (PAG) by Western blot. In addition, NMDAR2B and c-Fos were observed by the Immunohistochemistry staining after tDCS treatment. Results The mechanical allodynia and thermal hyperalgesia were produced after MIA injection. However, tDCS treatment reverted the mechanical allodynia and thermal hyperalgesia. Moreover, tDCS treatment significantly increased the expression of NMDAR2B and the proportion of positive stained cells of NMDAR2B. Besides that, the tDCS treatment also decreased the proportion of positive stained cells of c-Fos in PAG. However, these changes did not occur in the rats given the Ifenprodil (i.c.v.). Conclusion These results indicate that tDCS may increase the expression of NMDA receptors in PAG and strengthen the NMDA receptors-mediated antinociception to alleviate OA-induced chronic pain in rats.
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Affiliation(s)
- Xinhe Li
- Department of Rehabilitation Medicine, The Affiliated Hospital of Qingdao University, Qingdao, Shandong Province, People’s Republic of China
| | - Wenwen Zhou
- Department of Rehabilitation Medicine, The Affiliated Hospital of Qingdao University, Qingdao, Shandong Province, People’s Republic of China
| | - Lin Wang
- Department of Rehabilitation Medicine, The Affiliated Hospital of Qingdao University, Qingdao, Shandong Province, People’s Republic of China
| | - Yinshuang Ye
- Department of Rehabilitation Medicine, The Affiliated Hospital of Qingdao University, Qingdao, Shandong Province, People’s Republic of China
| | - Tieshan Li
- Department of Rehabilitation Medicine, The Affiliated Hospital of Qingdao University, Qingdao, Shandong Province, People’s Republic of China
- Correspondence: Tieshan Li, Email
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Abstract
Since the outbreak of COVID-19 in 2019, the rapid spread of the epidemic has brought huge challenges to medical institutions. If the pathological region in the COVID-19 CT image can be automatically segmented, it will help doctors quickly determine the patient's infection, thereby speeding up the diagnosis process. To be able to automatically segment the infected area, we proposed a new network structure and named QC-HC U-Net. First, we combine residual connection and dense connection to form a new connection method and apply it to the encoder and the decoder. Second, we choose to add Hypercolumns in the decoder section. Compared with the benchmark 3D U-Net, the improved network can effectively avoid vanishing gradient while extracting more features. To improve the situation of insufficient data, resampling and data enhancement methods are selected in this paper to expand the datasets. We used 63 cases of MSD lung tumor data for training and testing, continuously verified to ensure the training effect of this model, and then selected 20 cases of public COVID-19 data for training and testing. Experimental results showed that in the segmentation of COVID-19, the specificity and sensitivity were 85.3% and 83.6%, respectively, and in the segmentation of MSD lung tumors, the specificity and sensitivity were 81.45% and 80.93%, respectively, without any fitting.
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Affiliation(s)
- Qin Zhang
- School of Computer Science and Technology, Qilu University of Technology, Jinan, 250301, China
| | - Xiaoqiang Ren
- School of Computer Science and Technology, Qilu University of Technology, Jinan, 250301, China.
| | - Benzheng Wei
- Center for Medical Artificial Intelligence, Shandong University of Traditional Chinese Medicine, Jinan, China.
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Liu QM, He YY, Liu LL, Wang LK. Exosomal lncRNA HOTTIP Mediates Antiviral Effect of Tenofovir Alafenamide (TAF) on HBV Infection. J Inflamm Res 2021; 14:5489-5500. [PMID: 34720597 PMCID: PMC8550561 DOI: 10.2147/jir.s315716] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Accepted: 09/19/2021] [Indexed: 12/12/2022] Open
Abstract
INTRODUCTION Chronic hepatitis B (CHB) virus (HBV) infection has emerged as a global health burden affecting nearly 292 million people. Tenofovir alafenamide (TAF) is an effective treatment for CHB patients. However, the detailed mechanism underlying the antiviral activity of TAF remains unclear. METHODS In this study, we investigated the antiviral effect of exosomes derived from the serum of CHB patients treated with TAF (Exo-serum) and TAF-treated macrophages (MP) (Exo-MP(TAF)). RESULTS RNAseq analysis was also performed to determine the associated long non-coding RNAs (lncRNAs). The results demonstrated that both Exo-serum and Exo-MP(TAF) could be taken up by HepAD38 cells and exhibited potent antiviral activities, as manifested by significantly downregulating the levels of hepatitis B surface antigen, hepatitis B e antigen, HBV DNA, and covalently closed circular DNA. The antiviral effect of Exo-serum was more potent than those of TAF treatment alone. RNAseq analysis revealed that lncRNA HOTTIP was upregulated significantly in Exo-serum. Further, lncRNA HOTTIP knockdown reversed the antiviral effect of Exo-MP(TAF) on HepAD38 cells, whereas lncRNA HOTTIP knockdown exerted the opposite roles. DISCUSSION Taken together, these results suggest that exosomal lncRNA HOTTIP is essential for the antiviral activity of TAF and provide a novel understanding of the exosome-mediated mechanism underlying HBV infection.
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Affiliation(s)
- Qing-Min Liu
- Intensive Care Unit, Linyi People’s Hospital, Linyi, Shandong Province, People’s Republic of China
| | - Yi-Yu He
- Department of Cardiovascular Disease, Renmin Hospital of Wuhan University, Wuhan, Hubei Province, People’s Republic of China
| | - Li-Li Liu
- Department of Pathology, Linyi People’s Hospital, Linyi, Shandong Province, People’s Republic of China
| | - Li-Kun Wang
- Infection Control Center, Linyi People’s Hospital, Linyi, Shandong Province, People’s Republic of China
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Du T, Gao J, Li P, Wang Y, Qi Q, Liu X, Li J, Wang C, Du L. Pyroptosis, metabolism, and tumor immune microenvironment. Clin Transl Med 2021; 11:e492. [PMID: 34459122 PMCID: PMC8329701 DOI: 10.1002/ctm2.492] [Citation(s) in RCA: 103] [Impact Index Per Article: 34.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Revised: 06/17/2021] [Accepted: 06/21/2021] [Indexed: 12/12/2022] Open
Abstract
In response to a wide range of stimulations, host cells activate pyroptosis, a kind of inflammatory cell death which is provoked by the cytosolic sensing of danger signals and pathogen infection. In manipulating the cleavage of gasdermins (GSDMs), researchers have found that GSDM proteins serve as the real executors and the deterministic players in fate decisions of pyroptotic cells. Whether inflammatory characteristics induced by pyroptosis could cause damage the host or improve immune activity is largely dependent on the context, timing, and response degree. Here, we systematically review current points involved in regulatory mechanisms and the multidimensional roles of pyroptosis in several metabolic diseases and the tumor microenvironment. Targeting pyroptosis may reveal potential therapeutic avenues.
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Affiliation(s)
- Tiantian Du
- Department of Clinical LaboratoryThe Second HospitalCheeloo College of MedicineShandong UniversityJinanShandongChina
| | - Jie Gao
- Department of Clinical LaboratoryThe Second HospitalCheeloo College of MedicineShandong UniversityJinanShandongChina
| | - Peilong Li
- Department of Clinical LaboratoryThe Second HospitalCheeloo College of MedicineShandong UniversityJinanShandongChina
| | - Yunshan Wang
- Department of Clinical LaboratoryThe Second HospitalCheeloo College of MedicineShandong UniversityJinanShandongChina
| | - Qiuchen Qi
- Department of Clinical LaboratoryThe Second HospitalCheeloo College of MedicineShandong UniversityJinanShandongChina
| | - Xiaoyan Liu
- Department of Clinical LaboratoryThe Second HospitalCheeloo College of MedicineShandong UniversityJinanShandongChina
| | - Juan Li
- Department of Clinical LaboratoryThe Second HospitalCheeloo College of MedicineShandong UniversityJinanShandongChina
| | - Chuanxin Wang
- Department of Clinical LaboratoryThe Second HospitalCheeloo College of MedicineShandong UniversityJinanShandongChina
- Shandong Engineering and Technology Research Center for Tumor Marker DetectionJinanShandongChina
- Shandong Provincial Clinical Medicine Research Center for Clinical LaboratoryJinanShandongChina
| | - Lutao Du
- Department of Clinical LaboratoryThe Second HospitalCheeloo College of MedicineShandong UniversityJinanShandongChina
- Shandong Engineering and Technology Research Center for Tumor Marker DetectionJinanShandongChina
- Shandong Provincial Clinical Medicine Research Center for Clinical LaboratoryJinanShandongChina
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Zhang J, Xu Y, Zhao Y, Bai J, Xu M, Li C, Li J, Ren Y, Xu C, Gao Y, Sun Y, Liu X. The absence of muscle segment homeobox 2 leads to the pyroptosis of ameloblasts by inducing squamous epithelial hyperplasia in the enamel organ. J Cell Mol Med 2021; 25:6429-6437. [PMID: 34041852 PMCID: PMC8256348 DOI: 10.1111/jcmm.16646] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Revised: 03/03/2021] [Accepted: 04/23/2021] [Indexed: 12/14/2022] Open
Abstract
Muscle segment homeobox 2 (MSX2) has been confirmed to be involved in the regulation of early tooth development. However, the role of MSX2 has not been fully elucidated in enamel development. To research the functions of MSX2 in enamel formation, we used a Msx2-/- (KO) mouse model with no full Msx2 gene. In the present study, the dental appearance and enamel microstructure were detected by scanning electron microscopy and micro-computed tomography. The results showed that the absence of Msx2 resulted in enamel defects, leading to severe tooth wear in KO mice. To further investigate the mechanism behind the phenotype, we performed detailed histological analyses of the enamel organ in KO mice. We discovered that ameloblasts without Msx2 could secrete a small amount of enamel matrix protein in the early stage. However, the enamel epithelium occurred squamous epithelial hyperplasia and partial keratinization in the enamel organ during subsequent developmental stages. Ameloblasts depolarized and underwent pyroptosis. Overall, during the development of enamel, MSX2 affects the formation of enamel by regulating the function of epithelial cells in the enamel organ.
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Affiliation(s)
- Juanjuan Zhang
- Department of Oral BiologySchool of Bioscience and TechnologyWeifang Medical UniversityWeifangChina
| | - Ying Xu
- Department of Oral BiologySchool of Bioscience and TechnologyWeifang Medical UniversityWeifangChina
| | - Ying Zhao
- Department of Oral BiologySchool of Bioscience and TechnologyWeifang Medical UniversityWeifangChina
| | - Jingkun Bai
- Department of Oral BiologySchool of Bioscience and TechnologyWeifang Medical UniversityWeifangChina
| | - Mengge Xu
- Department of Oral BiologySchool of Bioscience and TechnologyWeifang Medical UniversityWeifangChina
| | - Chuanji Li
- Department of Oral BiologySchool of Bioscience and TechnologyWeifang Medical UniversityWeifangChina
| | - Jinyue Li
- Department of Oral BiologySchool of Bioscience and TechnologyWeifang Medical UniversityWeifangChina
| | - Yong Ren
- Department of Oral BiologySchool of Bioscience and TechnologyWeifang Medical UniversityWeifangChina
| | - Chang Xu
- Department of Pediatric DentistryBinzhou Medical UniversityYantaiChina
| | - Yuguang Gao
- Department of Pediatric DentistryBinzhou Medical UniversityYantaiChina
| | - Yan Sun
- Department of Oral BiologySchool of Bioscience and TechnologyWeifang Medical UniversityWeifangChina
| | - Xiaoying Liu
- Department of Oral BiologySchool of Bioscience and TechnologyWeifang Medical UniversityWeifangChina
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Cheng M, Yu L, Gao J, Lei G, Zhang Z. Isolating, identifying and evaluating of oil degradation strains for the air-assisted microbial enhanced oil recovery process. PLoS One 2021; 16:e0243976. [PMID: 33493159 PMCID: PMC7834137 DOI: 10.1371/journal.pone.0243976] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Accepted: 12/01/2020] [Indexed: 12/28/2022] Open
Abstract
Due to the inefficient reproduction of microorganisms in oxygen-deprived environments of the reservoir, the applications of microbial enhanced oil recovery (MEOR) are restricted. To overcome this problem, a new type of air-assisted MEOR process was investigated. Three compounding oil degradation strains were screened using biochemical experiments. Their performances in bacterial suspensions with different amounts of dissolved oxygen were evaluated. Water flooding, microbial flooding and air-assisted microbial flooding core flow experiments were carried out. Carbon distribution curve of biodegraded oil with different oxygen concentration was determined by chromatographic analysis. The long-chain alkanes are degraded by microorganisms. A simulation model was established to take into account the change in oxygen concentration in the reservoir. The results showed that the optimal dissolved oxygen concentration for microbial growth was 4.5~5.5mg/L. The main oxygen consumption in the reservoir happened in the stationary and declining phases of the microbial growth systems. In order to reduce the oxygen concentration to a safe level, the minimum radius of oxygen consumption was found to be about 145m. These results demonstrate that the air-assisted MEOR process can overcome the shortcomings of traditional microbial flooding techniques. The findings of this study can help for better understanding of microbial enhanced oil recovery and improving the efficiency of microbial oil displacement.
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Affiliation(s)
- Mingming Cheng
- Institute of Chemical and Safety Engineering, Binzhou University, Binzhou, Shandong, People’s Republic of China
| | - Long Yu
- Department of Civil & Environmental Engineering, National University of Singapore, Singapore, Singapore
| | - Jianbo Gao
- Binzhou Industry and Information Bureau, Binzhou, China
| | - Guanglun Lei
- Institute of Petroleum Engineering, China University of Petroleum (East China), Qingdao, Shandong, People’s Republic of China
| | - Zaiwang Zhang
- Institute of Chemical and Safety Engineering, Binzhou University, Binzhou, Shandong, People’s Republic of China
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Liu F, Dong J, Zhou D, Zhang Q. Identification of Key Candidate Genes Related to Inflammatory Osteolysis Associated with Vitamin E-Blended UHMWPE Debris of Orthopedic Implants by Integrated Bioinformatics Analysis and Experimental Confirmation. J Inflamm Res 2021; 14:3537-3554. [PMID: 34345178 PMCID: PMC8323865 DOI: 10.2147/jir.s320839] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Accepted: 07/12/2021] [Indexed: 02/05/2023] Open
Abstract
PURPOSE This study aims to identify differentially expressed genes (DEGs) in macrophages exposed to ultra-high-molecular-weight polyethylene (UHMWPE) or vitamin E-blended UHMWPE (VE-UHMWPE) particles, thereby providing potential targets for the treatment of inflammatory osteolysis. METHODS The GSE104589 dataset of genome expression in macrophages exposed to UHMWPE and VE-UHMWPE was downloaded from the Gene Expression Omnibus database to identify DEGs. Functional enrichment analysis was performed using DAVID, and the corresponding protein-protein interaction (PPI) network was constructed from the STRING database. Important modules were selected using the molecular complex detection algorithm, and hub genes were identified in cytoHubba. MicroRNAs targeting these DEGs were obtained from the TarBase, miRTarBase, and miRecords databases, while transcription factors (TFs) targeting DEGs were predicted from the ENCODE database. Finally, the top five DEGs were validated by quantitative real-time polymerase chain reaction (qRT-PCR). RESULTS A total of 112 DEGs (44 upregulated and 68 downregulated DEGs) were screened. Immune and inflammatory responses were significantly related in gene ontology analysis, and 18 signaling pathways were enriched according to Kyoto Encyclopedia of Genes and Genomes pathway analysis. The PPI network involving 85 nodes and 266 protein pairs indicated that IL1β, CXCL1, ICAM1, CCL5 and CCL4 showed higher degrees. qRT-PCR analysis of the top five DEGs revealed a decreasing trend in the VE-UHMWPE group compared with the UHMWPE group. Key microRNAs (hsa-miR-144, hsa-miR-21, and hsa-miR-221) and TFs (RELA and NFKB1) were predicted to be correlated with the pathogenesis of inflammatory osteolysis through microRNA-TF regulatory network analysis. CONCLUSION The present study helps shed light on the molecular mechanisms underlying the changes in the wear-induced inflammatory process after blending vitamin E with UHMWPE. Hub genes including IL1β, CXCL1, ICAM1, CCL5, and CCL4, key microRNAs (hsa-miR-144, hsa-miR-21, and hsa-miR-221) and TFs (RELA and NFKB1) may serve as prognostic and therapeutic targets of inflammatory osteolysis.
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Affiliation(s)
- Fanxiao Liu
- Department of Orthopaedics, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, People’s Republic of China
| | - Jun Dong
- Department of Orthopaedics, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, People’s Republic of China
| | - Dongsheng Zhou
- Department of Orthopaedics, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, People’s Republic of China
| | - Qingyu Zhang
- Department of Orthopaedics, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, People’s Republic of China
- Correspondence: Qingyu Zhang Department of Orthopaedics, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, People’s Republic of ChinaTel/Fax +86-0531-68773201 Email
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Yao Y, Sang D, Duan S, Wang Q, Liu C. Review on the Properties of Boron-Doped Diamond and One-Dimensional-Metal-Oxide Based P-N Heterojunction Optoelectronic. Molecules 2020; 26:E71. [PMID: 33375703 PMCID: PMC7794918 DOI: 10.3390/molecules26010071] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 12/21/2020] [Accepted: 12/22/2020] [Indexed: 11/21/2022] Open
Abstract
This review is mainly focused on the optoelectronic properties of diamond-based one-dimensional-metal-oxide heterojunction. First, we briefly introduce the research progress on one-dimensional (1D)-metal-oxide heterojunctions and the features of the p-type boron-doped diamond (BDD) film; then, we discuss the use of three oxide types (ZnO, TiO2 and WO3) in diamond-based-1D-metal-oxide heterojunctions, including fabrication, epitaxial growth, photocatalytic properties, electrical transport behavior and negative differential resistance behavior, especially at higher temperatures. Finally, we discuss the challenges and future trends in this research area. The discussed results of about 10 years' research on high-performance diamond-based heterojunctions will contribute to the further development of photoelectric nano-devices for high-temperature and high-power applications.
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Affiliation(s)
| | - Dandan Sang
- Shandong Key Laboratory of Optical Communication Science and Technology, School of Physics Science and Information Technology, Liaocheng University, Shandong 252000, China; (Y.Y.); (S.D.)
| | | | - Qinglin Wang
- Shandong Key Laboratory of Optical Communication Science and Technology, School of Physics Science and Information Technology, Liaocheng University, Shandong 252000, China; (Y.Y.); (S.D.)
| | - Cailong Liu
- Shandong Key Laboratory of Optical Communication Science and Technology, School of Physics Science and Information Technology, Liaocheng University, Shandong 252000, China; (Y.Y.); (S.D.)
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Sun J, Leng P, Sun C, Xu W, Zhao Z, Li X, Zhang X, Li J. Should CYP2C19 Genotyping Be Recommended as a Straight Forward Approach to Optimize Clopidogrel Utilization in Patients with Ischemic Stroke Complicated by Type 2 Diabetes Mellitus? Pharmgenomics Pers Med 2020; 13:645-653. [PMID: 33262635 PMCID: PMC7698285 DOI: 10.2147/pgpm.s279719] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Accepted: 10/30/2020] [Indexed: 11/27/2022] Open
Abstract
BACKGROUND There have been few studies on CYP2C19 genotypes and clopidogrel response associated with ischemic stroke (IS), especially IS complicated by type 2 diabetes mellitus (T2DM). This study aimed to investigate the possible association between CYP2C19 polymorphisms and high on-treatment platelet reactivity (HTPR) in IS patients with T2DM in China. PATIENTS AND METHODS A total of 426 consecutive IS patients with T2DM were enrolled in this case-control study and they were divided into HTPR group and non-HTPR group according to the ADP-induced platelet inhibition (PIADP) assessed by thromboelastography (TEG). Genotypes were detected by polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) method. Various clinical and demographic data were also recorded. The association between CYP2C19 genetic variants and platelet function was assessed. RESULTS Carriers of CYP2C19*2 heterozygous and mutant homozygous genotypes showed significantly lower PIADP than non-carriers (27.2% vs 38.3%, p < 0.001; 27.41% vs 38.3%, p = 0.012, respectively). Compared with the control group, the CYP2C19*2 A allele was more frequent in the HTPR group (34.51% vs 25.82%, p = 0.002). The carriage of CYP2C19*2 mutant allele was significantly associated with increased risk of HTPR (odds ratio (OR) = 1.94, 95% confidence interval (CI) = 1.32-2.85). There was no significant correlation between CYP2C19*3 or *17 genotypes and HTPR risk. CONCLUSION CYP2C19*2 mutant allele was associated with attenuated platelet response to clopidogrel and increased risk of HTPR in IS patients with T2DM, suggesting that CYP2C19*2 polymorphism might be an important predictor of HTPR in this high-risk population.
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Affiliation(s)
- Jialin Sun
- Department of Pharmacy, The Affiliated Hospital of Qingdao University, Qingdao266003, Shandong, People’s Republic of China
| | - Ping Leng
- Department of Pharmacy, The Affiliated Hospital of Qingdao University, Qingdao266003, Shandong, People’s Republic of China
| | - Chen Sun
- Department of Pharmacy, Qingdao Municipal Hospital, Qingdao266003, Shandong, People’s Republic of China
| | - Wen Xu
- Department of Pharmacy, The Affiliated Hospital of Qingdao University, Qingdao266003, Shandong, People’s Republic of China
| | - Zhenhuan Zhao
- Department of Pharmacy, The Affiliated Hospital of Qingdao University, Qingdao266003, Shandong, People’s Republic of China
| | - Xiao Li
- Department of Pharmacy, The Affiliated Hospital of Qingdao University, Qingdao266003, Shandong, People’s Republic of China
| | - Xiaolei Zhang
- Department of Pharmacy, The Affiliated Hospital of Qingdao University, Qingdao266003, Shandong, People’s Republic of China
| | - Jing Li
- Department of Pharmacy, The Affiliated Hospital of Qingdao University, Qingdao266003, Shandong, People’s Republic of China
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Zhang Y, Lang B, Zhao G, Wang F. Hemostatic effect of tourniquet combined with tranexamic acid in total knee arthroplasty: a network meta-analysis. J Orthop Surg Res 2020; 15:530. [PMID: 33183324 PMCID: PMC7663901 DOI: 10.1186/s13018-020-02010-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Accepted: 10/06/2020] [Indexed: 01/28/2023] Open
Abstract
BACKGROUND There are various techniques to reduce blood loss in total knee arthroplasty (TKA), including the use of a tourniquet and tranexamic acid (TXA). In this study, we studied the combined effect of TXA with a tourniquet on blood loss in the setting of primary TKA. METHODS Randomized controlled trials (RCTs) of nine treatment methods were included (placebo, intravenous [i.v.] TXA, topical TXA, i.v.-combined topical TXA, oral TXA, placebo + tourniquet, i.v. TXA +tourniquet, topical TXA + tourniquet, and i.v.-combined topical TXA + tourniquet). The patients were divided into eight groups according to the different treatment strategies, with 30 cases per group. The differences in the total blood volume, the number of patients transfused, the hemoglobin before and after the operation, and complications after the operation were compared. RESULTS Totally 15 RCTs meeting our inclusion criteria were collected in this study. Compared with the placebo + tourniquet group, the i.v. TXA + tourniquet group displayed lower hemoglobin reduction value, pulmonary embolism (PE) incidence, total blood loss, and blood transfusion risk; the topical TXA + tourniquet group showed reduced PE incidence, total blood loss, and blood transfusion risk, and the i.v.-combined topical TXA and i.v.-combined topical TXA + tourniquet groups showed decreased total blood loss and lower blood transfusion risk. Retrospective clinical study results also demonstrated that the efficacy of i.v.-combined topical TXA was the best. CONCLUSIONS Our meta-analysis indicates that i.v.-combined topical TXA provides a low total blood loss without increasing the blood transfusion risk in patients undergoing total knee replacement surgery.
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Affiliation(s)
- Yimin Zhang
- Joint Surgery Department, Weifang People’s Hospital, Weifang, 261000 People’s Republic of China
| | - Bao Lang
- Anesthesiology Department, Weifang People’s Hospital, Weifang, 261000 People’s Republic of China
| | - Guifeng Zhao
- Medical Department, Weifang People’s Hospital, No. 151, Guangwen Road, Kuiwen District, Weifang, 261000 Shandong Province People’s Republic of China
| | - Fengming Wang
- Orthopaedics Department, People’s Hospital of Xiashan Ecological and Economic Development Zone, No. 1, Xiashou Road, Xiashan District, Weifang, 261325 Shandong Province People’s Republic of China
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Jiao B, Meng Q, Lv W. Roles of stay-green (SGR) homologs during chlorophyll degradation in green plants. Bot Stud 2020; 61:25. [PMID: 32965575 PMCID: PMC7511501 DOI: 10.1186/s40529-020-00302-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Accepted: 09/18/2020] [Indexed: 05/29/2023]
Abstract
Chlorophyll (Chl) degradation is one of the most obvious signs of leaf senescence and fruit ripening. Stay-green (SGR) homologs that can remove magnesium from Chl a are the most important components in Chl degradation pathway in green plants. SGR homologs are not only universally involved in Chl breakdown during the senescence of green organs, but also play crucial roles in other organs during plant growth and development, such as fruit mature and nodule development. In this review, we focus on the diverse functions of SGR homologs in plant growth and development. A better understanding of SGR would be helpful for providing a theoretical basis for further illustrating the regulatory mechanism of SGR homologs.
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Affiliation(s)
- Baozhen Jiao
- State Key Laboratory of Crop Biology, College of Life Science, Shandong Agricultural University, Daizong Street, Tai’an, 271018 Shandong People’s Republic of China
| | - Qingwei Meng
- State Key Laboratory of Crop Biology, College of Life Science, Shandong Agricultural University, Daizong Street, Tai’an, 271018 Shandong People’s Republic of China
| | - Wei Lv
- State Key Laboratory of Crop Biology, College of Life Science, Shandong Agricultural University, Daizong Street, Tai’an, 271018 Shandong People’s Republic of China
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Ke H, Liu D, Li T, Chu X, Xin D, Han M, Wang S, Wang Z. Hydrogen-Rich Saline Regulates Microglial Phagocytosis and Restores Behavioral Deficits Following Hypoxia-Ischemia Injury in Neonatal Mice via the Akt Pathway. Drug Des Devel Ther 2020; 14:3827-3839. [PMID: 33061290 PMCID: PMC7526477 DOI: 10.2147/dddt.s264684] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Accepted: 08/13/2020] [Indexed: 12/19/2022] Open
Abstract
INTRODUCTION We have reported previously that hydrogen-rich saline (HS) plays a neuroprotective role in hypoxia-ischemia (HI) brain damage in newborn mice. However, the mechanisms for this neuroprotection resulting from HS remain unknown. In this study, we examined the potential for HS to exert effects upon microglial phagocytosis via involvement of the Akt signaling pathway as one of the neuroprotective mechanisms in response to neonatal HI. METHODS The HI brain injury model was performed on postnatal day (PND) 7 (modified Vannucci model). The acute brain damage was detected at 3 days after HI exposure. The behavioral and functional screening of the pups at PND11 and PND13 and their long-term outcomes (PND35, 28-days post-HI) were evaluated sensorimotor performance and cognitive functions, respectively. RESULTS The result showed that HS administration alleviated HI-induced edema, infract volume and cellular apoptosis within the cortex of neonatal mice. Accompanying these indices of neuroprotection from HS were reductions in HI-induced phagocytosis in microglia as demonstrated in vivo and in vitro, effects that were associated with increasing levels of Akt phosphorylation and improvements in neurobehavioral responses. These beneficial effects of HS were abolished in mice treated with an Akt inhibitor. DISCUSSION These results demonstrate that HS treatment attenuates neurobehavioral deficits and apoptosis resulting from HI, effects which were associated with reductions in phagocytosis and appear to involve the Akt signaling pathway.
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Affiliation(s)
- Hongfei Ke
- Department of Physiology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong250012, People’s Republic of China
| | - Dexiang Liu
- Department of Medical Psychology and Ethics, School of Basic Medicine Sciences, Cheeloo College of Medicine, Shandong University, Jinan250012, Shandong, People’s Republic of China
| | - Tingting Li
- Department of Physiology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong250012, People’s Republic of China
| | - Xili Chu
- Department of Physiology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong250012, People’s Republic of China
| | - Danqing Xin
- Department of Physiology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong250012, People’s Republic of China
| | - Min Han
- Department of Physiology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong250012, People’s Republic of China
| | - Shuanglian Wang
- Department of Physiology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong250012, People’s Republic of China
| | - Zhen Wang
- Department of Physiology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong250012, People’s Republic of China
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Zhang M, Zhang Y, Hong M, Xiao J, Han Z, Song Y, Zhu S, Yan D, Yang Q, Xu W, Liu Z. Molecular typing and characterization of a novel genotype of EV-B93 isolated from Tibet, China. PLoS One 2020; 15:e0237652. [PMID: 32841272 PMCID: PMC7447049 DOI: 10.1371/journal.pone.0237652] [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] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Accepted: 07/30/2020] [Indexed: 11/18/2022] Open
Abstract
EV-B93 is a novel serotype within the Enterovirus B species and is uncommon worldwide. Currently, only one full-length genomic sequence (the prototype strain) has been deposited in the GenBank database. In this study, three EV-B93 were identified, including one from an acute flaccid paralysis (AFP) patient (named 99052/XZ/CHN/1999, hereafter XZ99052) and two from healthy children (named 99096/XZ/CHN/1999 and 99167/XZ/CHN/1999, hereafter XZ99096 and XZ99167, respectively) from Tibet in 1999 during the polio eradication program. The identity between the nucleotide and amino acid sequences of the Tibet EV-B93 strain and the EV-B93 prototype strain is 83.2%–83.4% and 96.8%–96.9%, respectively. The Tibet EV-B93 strain was found to have greater nucleotide sequence identity in the P3 region to another enterovirus EV-B107 as per a phylogenetic tree analysis, which revealed that recombination occurred. Seroepidemiology data showed that EV-B93 has not produced an epidemic in Tibet and there may be susceptible individuals. The three Tibet EV-B93 strains are temperature-resistant with prognosticative virulence, suggesting the possibility of a potential large-scale outbreak of EV-B93. The analyzed EV-B93 strains enrich our knowledge about this serotype and provide valuable information on global EV-B93 molecular epidemiology. What is more, they permit the appraisal of the serotype's potential public health impact and aid in understanding the role of recombination events in the evolution of enteroviruses.
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Affiliation(s)
- Man Zhang
- Department of Medical Microbiology, Weifang Medical University, Weifang, People’s Republic of China
- WHO WPRO Regional Polio Reference Laboratory and National Health Commission Key Laboratory for Biosafety, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, People’s Republic of China
| | - Yong Zhang
- WHO WPRO Regional Polio Reference Laboratory and National Health Commission Key Laboratory for Biosafety, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, People’s Republic of China
- Center for Biosafety Mega-Science, Chinese Academy of Sciences, Beijing, People’s Republic of China
- * E-mail: (YZ); (ZL)
| | - Mei Hong
- Tibet Center for Disease Control and Prevention, Lhasa City, Tibet Autonomous Region, People’s Republic of China
| | - Jinbo Xiao
- WHO WPRO Regional Polio Reference Laboratory and National Health Commission Key Laboratory for Biosafety, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, People’s Republic of China
| | - Zhenzhi Han
- WHO WPRO Regional Polio Reference Laboratory and National Health Commission Key Laboratory for Biosafety, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, People’s Republic of China
| | - Yang Song
- WHO WPRO Regional Polio Reference Laboratory and National Health Commission Key Laboratory for Biosafety, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, People’s Republic of China
| | - Shuangli Zhu
- WHO WPRO Regional Polio Reference Laboratory and National Health Commission Key Laboratory for Biosafety, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, People’s Republic of China
| | - Dongmei Yan
- WHO WPRO Regional Polio Reference Laboratory and National Health Commission Key Laboratory for Biosafety, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, People’s Republic of China
| | - Qian Yang
- WHO WPRO Regional Polio Reference Laboratory and National Health Commission Key Laboratory for Biosafety, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, People’s Republic of China
| | - Wenbo Xu
- WHO WPRO Regional Polio Reference Laboratory and National Health Commission Key Laboratory for Biosafety, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, People’s Republic of China
- Center for Biosafety Mega-Science, Chinese Academy of Sciences, Beijing, People’s Republic of China
| | - Zhijun Liu
- Department of Medical Microbiology, Weifang Medical University, Weifang, People’s Republic of China
- * E-mail: (YZ); (ZL)
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Zhao N, Yang F, Han L, Qu Y, Ge D, Zhang H. Development of Coumarin-Based Hydroxamates as Histone Deacetylase Inhibitors with Antitumor Activities. Molecules 2020; 25:E717. [PMID: 32046013 PMCID: PMC7036849 DOI: 10.3390/molecules25030717] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2019] [Revised: 01/30/2020] [Accepted: 02/06/2020] [Indexed: 02/07/2023] Open
Abstract
Histone deacetylases (HDACs) have been proved to be promising targets for the treatment of cancer, and five histone deacetylase inhibitors (HDACis) have been approved on the market for the treatment of different lymphomas. In our previous work, we designed a series of novel coumarin-containing hydroxamate HDACis, among which compounds 6 and 7 displayed promising activities against tumor growth. Based on a molecular docking study, we further developed 26 additional analogues with the aim to improve activity of designed compounds. Several of these new derivatives not only showed excellent HDAC1 inhibitory effects, but also displayed significant growth inhibitory activities against four human cancer cell lines. Representative compounds, 13a and 13c, showed potent anti-proliferative activities against solid tumor cell lines with IC50 values of 0.36-2.91 M and low cytotoxicity against Beas-2B and L-02 normal cells. Immunoblot analysis revealed that 13a and 13c dose-dependently increased the acetylation of histone H3 and H4. Importantly, the two compounds displayed much better anti-metastatic effects than SAHA against the MDA-MB-231 cell line. Moreover, 13a and 13c arrested MDA-MB-231 cells at G2/M phase and induced MDA-MB-231 cell apoptosis. Finally, the molecular docking study rationalized the high potency of compound 13c.
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Affiliation(s)
- Na Zhao
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China;
- School of Biological Science and Technology, University of Jinan, Jinan 250022, China; (L.H.); (Y.Q.); (D.G.)
| | - Feifei Yang
- School of Biological Science and Technology, University of Jinan, Jinan 250022, China; (L.H.); (Y.Q.); (D.G.)
| | - Lina Han
- School of Biological Science and Technology, University of Jinan, Jinan 250022, China; (L.H.); (Y.Q.); (D.G.)
| | - Yuhua Qu
- School of Biological Science and Technology, University of Jinan, Jinan 250022, China; (L.H.); (Y.Q.); (D.G.)
| | - Di Ge
- School of Biological Science and Technology, University of Jinan, Jinan 250022, China; (L.H.); (Y.Q.); (D.G.)
| | - Hua Zhang
- School of Biological Science and Technology, University of Jinan, Jinan 250022, China; (L.H.); (Y.Q.); (D.G.)
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Wang H, Bai C, Yi M, Jia Y, Li Y, Jiang D, Chen O. Metabolic Syndrome and Incident Asthma in Chinese Adults: An Open Cohort Study. Diabetes Metab Syndr Obes 2020; 13:3411-3420. [PMID: 33061502 PMCID: PMC7532911 DOI: 10.2147/dmso.s274159] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Accepted: 09/12/2020] [Indexed: 01/23/2023] Open
Abstract
BACKGROUND Although metabolic syndrome is awell-known risk factor for many non-communicable diseases, its contribution to asthma remains controversial. OBJECTIVE The aim of this study was to explore the associations of metabolic syndrome and its components with incident asthma in Chinese adults. METHODS We conducted an open cohort study of participants who were asthma-free at baseline (n=42,304) in the Shandong multi-center health check-up longitudinal study from 2004 to 2015. Participants aged ≥20 years and had regular physical examination (once ayear) more than three times during follow-up. RESULTS Ninety subjects (38 women and 52 men) developed incident asthma over 12 years of follow-up. Our study suggested that metabolic syndrome itself was not significantly associated with incident asthma in either women or men (P>0.050). Interestingly, we found that overweight and/or obesity was arisk factor for incident asthma among women but not men in the Cox proportional hazards model after adjusting covariates (adjusted incidence rate ratio (IRR)= 2.940, 95% confidence interval (CI): 1.467-5.894, P=0.002). The result was consistent with the Poisson regression model (hazard ratio (HR)= 2.241, 95% CI: 1.135-4.988, P=0.026). After stratifying according to overweight and/or obesity, we found that female subjects with overweight and obesity were associated with the occurrence of incident asthma (P<0.050). However, we did not find this result among men. CONCLUSION Metabolic syndrome was not significantly associated with incident asthma in both women and men; however, overweight and/or obesity was shown to be asignificant risk factor for incident asthma but only in women, not in men.
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Affiliation(s)
- Haixia Wang
- School of Nursing, Cheeloo College of Medicine, Shandong University, Jinan250012, Shandong, People’s Republic of China
| | - Chenxiao Bai
- School of Nursing, Cheeloo College of Medicine, Shandong University, Jinan250012, Shandong, People’s Republic of China
| | - Mo Yi
- School of Nursing, Cheeloo College of Medicine, Shandong University, Jinan250012, Shandong, People’s Republic of China
| | - Yuanmin Jia
- School of Nursing, Cheeloo College of Medicine, Shandong University, Jinan250012, Shandong, People’s Republic of China
| | - Yizhang Li
- School of Nursing, Cheeloo College of Medicine, Shandong University, Jinan250012, Shandong, People’s Republic of China
| | - Di Jiang
- School of Nursing, Cheeloo College of Medicine, Shandong University, Jinan250012, Shandong, People’s Republic of China
| | - Ou Chen
- School of Nursing, Cheeloo College of Medicine, Shandong University, Jinan250012, Shandong, People’s Republic of China
- Correspondence: Ou Chen School of Nursing, Cheeloo College of Medicine, Shandong University, Jinan250012, Shandong, People’s Republic of ChinaTel +8615990991181 Email
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Dong C, Sun L, Ma X, Lu Z, He P, Zhu P. Synthesis of a Novel Linear α, ω-Di (Chloro Phosphoramide) Polydimethylsiloxane and Its Applications in Improving Flame-Retardant and Water-Repellent Properties of Cotton Fabrics. Polymers (Basel) 2019; 11:E1829. [PMID: 31703328 PMCID: PMC6918139 DOI: 10.3390/polym11111829] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2019] [Revised: 11/01/2019] [Accepted: 11/04/2019] [Indexed: 12/03/2022] Open
Abstract
A novel linear α, ω-di (chloro phosphoramide)-terminated polydimethylsiloxane (CPN-PDMS) was successfully synthesized and utilized as a formaldehyde-free water-repellent and flame-retardant for cotton fabrics. The flame retardancy of treated cotton fabrics was estimated by limiting oxygen index (LOI) test, vertical flammability test, and cone calorimetry test. The cotton fabrics treated with 350 g/L CPN-PDMS obtained excellent flame retardancy with an LOI value of 30.6% and the char length was only 4.3 cm. Combustion residues were studied using Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM) and energy dispersive spectrometry (EDS) analysis. Results show that CPN-PDMS can effectively enhance water repellency and fire resistance of cotton fabrics. Furthermore, the breaking strength test and the whiteness test strongly prove that the tensile strength and whiteness of the treated cotton fabrics were slightly lower than that of the pure cotton fabrics. The wash stability test showed that after 30 laundering cycles, the treated cotton fabrics still had an LOI value of 28.5% and a water-repellent effect of grade 80, indicating that CPN-PDMS was an excellent washing durability additive. In summary, these property enhancements of treated cotton fabrics were attributed to the synergistic effect of silicon-phosphorus-nitrogen elements in CPN-PDMS.
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Affiliation(s)
| | | | | | - Zhou Lu
- Institute of Functional Textiles and Advanced Materials, State Key Laboratory of Bio-Fibers and Eco-Textiles, College of Textile and Clothing, Qingdao University, Qingdao 266000, China; (C.D.); (L.S.); (X.M.); (P.H.)
| | | | - Ping Zhu
- Institute of Functional Textiles and Advanced Materials, State Key Laboratory of Bio-Fibers and Eco-Textiles, College of Textile and Clothing, Qingdao University, Qingdao 266000, China; (C.D.); (L.S.); (X.M.); (P.H.)
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Jiao Z, Sun J, Wang C, Dong Y, Xiao S, Gao X, Cao Q, Li L, Li W, Gao C. Genome-wide characterization, evolutionary analysis of WRKY genes in Cucurbitaceae species and assessment of its roles in resisting to powdery mildew disease. PLoS One 2018; 13:e0199851. [PMID: 30589839 PMCID: PMC6307730 DOI: 10.1371/journal.pone.0199851] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2018] [Accepted: 12/13/2018] [Indexed: 11/19/2022] Open
Abstract
The WRKY proteins constitute a large family of transcription factors that have been known to play a wide range of regulatory roles in multiple biological processes. Over the past few years, many reports have focused on analysis of evolution and biological function of WRKY genes at the whole genome level in different plant species. However, little information is known about WRKY genes in melon (Cucumis melo L.). In the present study, a total of 56 putative WRKY genes were identified in melon, which were randomly distributed on their respective chromosomes. A multiple sequence alignment and phylogenetic analysis using melon, cucumber and watermelon predicted WRKY domains indicated that melon WRKY proteins could be classified into three main groups (I-III). Our analysis indicated that no recent duplication events of WRKY genes were detected in melon, and strong purifying selection was observed among the 85 orthologous pairs of Cucurbitaceae species. Expression profiles of CmWRKY derived from RNA-seq data and quantitative RT-PCR (qRT-PCR) analyses showed distinct expression patterns in various tissues, and the expression of 16 CmWRKY were altered following powdery mildew infection in melon. Besides, we also found that a total of 24 WRKY genes were co-expressed with 11 VQ family genes in melon. Our comparative genomic analysis provides a foundation for future functional dissection and understanding the evolution of WRKY genes in cucurbitaceae species, and will promote powdery mildew resistance study in melon.
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Affiliation(s)
- Zigao Jiao
- Experimental Station of Vegetable Scientific Observation in Huang-Huai Area of Ministry of Agriculture, Shandong Key Laboratory of Greenhouse Vegetable Biology, Institute of Vegetables and Flowers, Shandong Academy of Agricultural Sciences, Jinan, China
| | - Jianlei Sun
- Experimental Station of Vegetable Scientific Observation in Huang-Huai Area of Ministry of Agriculture, Shandong Key Laboratory of Greenhouse Vegetable Biology, Institute of Vegetables and Flowers, Shandong Academy of Agricultural Sciences, Jinan, China
| | - Chongqi Wang
- Experimental Station of Vegetable Scientific Observation in Huang-Huai Area of Ministry of Agriculture, Shandong Key Laboratory of Greenhouse Vegetable Biology, Institute of Vegetables and Flowers, Shandong Academy of Agricultural Sciences, Jinan, China
| | - Yumei Dong
- Experimental Station of Vegetable Scientific Observation in Huang-Huai Area of Ministry of Agriculture, Shandong Key Laboratory of Greenhouse Vegetable Biology, Institute of Vegetables and Flowers, Shandong Academy of Agricultural Sciences, Jinan, China
| | - Shouhua Xiao
- Experimental Station of Vegetable Scientific Observation in Huang-Huai Area of Ministry of Agriculture, Shandong Key Laboratory of Greenhouse Vegetable Biology, Institute of Vegetables and Flowers, Shandong Academy of Agricultural Sciences, Jinan, China
| | - Xuli Gao
- Experimental Station of Vegetable Scientific Observation in Huang-Huai Area of Ministry of Agriculture, Shandong Key Laboratory of Greenhouse Vegetable Biology, Institute of Vegetables and Flowers, Shandong Academy of Agricultural Sciences, Jinan, China
| | - Qiwei Cao
- Experimental Station of Vegetable Scientific Observation in Huang-Huai Area of Ministry of Agriculture, Shandong Key Laboratory of Greenhouse Vegetable Biology, Institute of Vegetables and Flowers, Shandong Academy of Agricultural Sciences, Jinan, China
| | - Libin Li
- Experimental Station of Vegetable Scientific Observation in Huang-Huai Area of Ministry of Agriculture, Shandong Key Laboratory of Greenhouse Vegetable Biology, Institute of Vegetables and Flowers, Shandong Academy of Agricultural Sciences, Jinan, China
| | - Wendong Li
- Experimental Station of Vegetable Scientific Observation in Huang-Huai Area of Ministry of Agriculture, Shandong Key Laboratory of Greenhouse Vegetable Biology, Institute of Vegetables and Flowers, Shandong Academy of Agricultural Sciences, Jinan, China
| | - Chao Gao
- Experimental Station of Vegetable Scientific Observation in Huang-Huai Area of Ministry of Agriculture, Shandong Key Laboratory of Greenhouse Vegetable Biology, Institute of Vegetables and Flowers, Shandong Academy of Agricultural Sciences, Jinan, China
- * E-mail:
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Zhang T, Lv W, Zhang H, Ma L, Li P, Ge L, Li G. Genome-wide analysis of the basic Helix-Loop-Helix (bHLH) transcription factor family in maize. BMC Plant Biol 2018; 18:235. [PMID: 30326829 PMCID: PMC6192367 DOI: 10.1186/s12870-018-1441-z] [Citation(s) in RCA: 63] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2018] [Accepted: 09/24/2018] [Indexed: 05/29/2023]
Abstract
BACKGROUND In plants, the basic helix-loop-helix (bHLH) transcription factors play key roles in diverse biological processes. Genome-wide comprehensive and systematic analyses of bHLH proteins have been well conducted in Arabidopsis, rice, tomato and other plant species. However, only few of bHLH family genes have been functional characterized in maize. RESULTS In this study, our genome-wide analysis identified 208 putative bHLH family proteins (ZmbHLH proteins) in maize (Zea mays). We classified these proteins into 18 subfamilies by comparing the ZmbHLHs with Arabidopsis thaliana bHLH proteins. Phylogenetic analysis, conserved protein motifs, and exon-intron patterns further supported the evolutionary relationships among these bHLH proteins. Genome distribution analysis found that the 208 ZmbHLH loci were located non-randomly on the ten maize chromosomes. Further, analysis of conserved cis-elements in the promoter regions, protein interaction networks, and expression patterns in roots, leaves, and seeds across developmental stages, suggested that bHLH family proteins in maize are probably involved in multiple physiological processes in plant growth and development. CONCLUSION We performed a genome-wide, systematic analysis of bHLH proteins in maize. This comprehensive analysis provides a useful resource that enables further investigation of the physiological roles and molecular functions of the ZmbHLH transcription factors.
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Affiliation(s)
- Tingting Zhang
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Tai’an, 271018 China
| | - Wei Lv
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Tai’an, 271018 China
| | - Haisen Zhang
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Tai’an, 271018 China
| | - Lin Ma
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Tai’an, 271018 China
- School of Biological Science and Technology, University of Jinan, Jinan, 250022 China
| | - Pinghua Li
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai’an, 271018 China
| | - Lei Ge
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Tai’an, 271018 China
| | - Gang Li
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Tai’an, 271018 China
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Wang G, Wang Y, Zhang Y. Some inequalities for the Fan product of M-tensors. J Inequal Appl 2018; 2018:257. [PMID: 30839669 PMCID: PMC6154051 DOI: 10.1186/s13660-018-1853-1] [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] [Figures] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Accepted: 09/13/2018] [Indexed: 06/09/2023]
Abstract
In this paper, we investigate some inequalities for the Fan product of M-tensors. We propose exact characterizations of M-tensors and establish some inequalities on the minimum eigenvalue for the Fan product of two M-tensors. Furthermore, the inclusion relations among them are discussed. Numerical examples show the validity of the conclusions.
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Affiliation(s)
- Gang Wang
- School of Management Science, Qufu Normal University, Rizhao, P.R. China
| | - Yanan Wang
- School of Management and Economics, Beijing Institute of Technology, Beijing, P.R. China
| | - Yuan Zhang
- School of Management Science, Qufu Normal University, Rizhao, P.R. China
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Jia M, Li S, Zang L, Lu X, Zhang H. Analysis of Biomolecules Based on the Surface Enhanced Raman Spectroscopy. Nanomaterials (Basel) 2018; 8:E730. [PMID: 30223597 PMCID: PMC6165412 DOI: 10.3390/nano8090730] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/28/2018] [Revised: 09/10/2018] [Accepted: 09/14/2018] [Indexed: 12/24/2022]
Abstract
Analyzing biomolecules is essential for disease diagnostics, food safety inspection, environmental monitoring and pharmaceutical development. Surface-enhanced Raman spectroscopy (SERS) is a powerful tool for detecting biomolecules due to its high sensitivity, rapidness and specificity in identifying molecular structures. This review focuses on the SERS analysis of biomolecules originated from humans, animals, plants and microorganisms, combined with nanomaterials as SERS substrates and nanotags. Recent advances in SERS detection of target molecules were summarized with different detection strategies including label-free and label-mediated types. This comprehensive and critical summary of SERS analysis of biomolecules might help researchers from different scientific backgrounds spark new ideas and proposals.
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Affiliation(s)
- Min Jia
- Shandong Provincial Key Laboratory of Animal Resistance Biology, Institute of Biomedical Sciences, Key Laboratory of Food Nutrition and Safety of Shandong Normal University, College of Life Science, Shandong Normal University, Jinan 250014, China.
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University (BTBU), Beijing 100048, China.
| | - Shenmiao Li
- Food, Nutrition and Health Program, Faculty of Land and Food Systems, The University of British Columbia, Vancouver, BC V6T 1Z4, Canada.
| | - Liguo Zang
- Shandong Provincial Key Laboratory of Animal Resistance Biology, Institute of Biomedical Sciences, Key Laboratory of Food Nutrition and Safety of Shandong Normal University, College of Life Science, Shandong Normal University, Jinan 250014, China.
| | - Xiaonan Lu
- Food, Nutrition and Health Program, Faculty of Land and Food Systems, The University of British Columbia, Vancouver, BC V6T 1Z4, Canada.
| | - Hongyan Zhang
- Shandong Provincial Key Laboratory of Animal Resistance Biology, Institute of Biomedical Sciences, Key Laboratory of Food Nutrition and Safety of Shandong Normal University, College of Life Science, Shandong Normal University, Jinan 250014, China.
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Duan W, Wang Q, Zhang H, Xie B, Li A, Hou F, Dong S, Wang B, Qin Z, Zhang L. Differences between nitrogen-tolerant and nitrogen-susceptible sweetpotato cultivars in photosynthate distribution and transport under different nitrogen conditions. PLoS One 2018; 13:e0194570. [PMID: 29596436 PMCID: PMC5875776 DOI: 10.1371/journal.pone.0194570] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2017] [Accepted: 03/06/2018] [Indexed: 11/18/2022] Open
Abstract
To characterize the differences in photosynthate distribution and transport between nitrogen(N)-tolerant and N-susceptible sweetpotato cultivars under different N conditions, three N levels, including 0 (N0), 120 (N120), and 240 kg ha-1 (N240), were used in field experiments with the Jishu26 (J26) and Xushu32 (X32) cultivars in 2015 and 2016. The results from both years revealed that high N application reduced the tuberous root yield, the tuber/vine rate of carbon-13 (13C), and top-to-base (three equal segments of stem divided from the fifth opened leaf of the shoot tip to the main stem, defined as the top, middle, and base parts, respectively) gradients such as sucrose, ammonia N and potassium along the stem. 'J26' showed a higher yield than 'X32' under N0 but lower yield than 'X32' under N120 and N240. It also exhibited a higher 13C distribution to tuberous roots compared with that of 'X32' under N0, and the opposite trend was observed under N120 and N240. Under N0, 'J26' showed a steep top-to-base amino acid gradient and a significantly lower top-to-base sucrose increase along the stem in the late growth stage. Under N120 and N240, 'X32' exhibited a greater top-to-base decrease in the ammonia N along the stem during the main growth stages, a steep top-to-base sucrose gradient along the stem in the early growth stage, and a lower top-to-base sucrose increase along the stem in the middle and late growth stages. The formation of a reasonable photosynthate distribution structure attributed to high yield was related to a desirable sucrose, ammonia N or K+ gradient downward along the stem. These results might help provide farmers with sweetpotato cultivars using less or no N fertilizer in soils of different fertility and enhance the knowledge of yield-related physiology.
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Affiliation(s)
- Wenxue Duan
- Crop Research Institute, Shandong Academy of Agricultural Sciences, Jinan, Shandong, China
- Scientific Observation and Experimental Station of Tuber and Root Crops in Huang-Huai-Hai Region, Jinan, Shandong, China
| | - Qingmei Wang
- Crop Research Institute, Shandong Academy of Agricultural Sciences, Jinan, Shandong, China
- Scientific Observation and Experimental Station of Tuber and Root Crops in Huang-Huai-Hai Region, Jinan, Shandong, China
| | - Haiyan Zhang
- Crop Research Institute, Shandong Academy of Agricultural Sciences, Jinan, Shandong, China
- Scientific Observation and Experimental Station of Tuber and Root Crops in Huang-Huai-Hai Region, Jinan, Shandong, China
| | - Beitao Xie
- Crop Research Institute, Shandong Academy of Agricultural Sciences, Jinan, Shandong, China
- Scientific Observation and Experimental Station of Tuber and Root Crops in Huang-Huai-Hai Region, Jinan, Shandong, China
| | - Aixian Li
- Crop Research Institute, Shandong Academy of Agricultural Sciences, Jinan, Shandong, China
- Scientific Observation and Experimental Station of Tuber and Root Crops in Huang-Huai-Hai Region, Jinan, Shandong, China
| | - Fuyun Hou
- Crop Research Institute, Shandong Academy of Agricultural Sciences, Jinan, Shandong, China
- Scientific Observation and Experimental Station of Tuber and Root Crops in Huang-Huai-Hai Region, Jinan, Shandong, China
| | - Shunxu Dong
- Crop Research Institute, Shandong Academy of Agricultural Sciences, Jinan, Shandong, China
- Scientific Observation and Experimental Station of Tuber and Root Crops in Huang-Huai-Hai Region, Jinan, Shandong, China
| | - Baoqing Wang
- Crop Research Institute, Shandong Academy of Agricultural Sciences, Jinan, Shandong, China
- Scientific Observation and Experimental Station of Tuber and Root Crops in Huang-Huai-Hai Region, Jinan, Shandong, China
| | - Zhen Qin
- Crop Research Institute, Shandong Academy of Agricultural Sciences, Jinan, Shandong, China
- Scientific Observation and Experimental Station of Tuber and Root Crops in Huang-Huai-Hai Region, Jinan, Shandong, China
| | - Liming Zhang
- Scientific Observation and Experimental Station of Tuber and Root Crops in Huang-Huai-Hai Region, Jinan, Shandong, China
- Shandong Academy of Agricultural Sciences, Jinan, Shandong, China
- * E-mail:
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Guan H, Dai Z, Zhao A, He J. A novel stock forecasting model based on High-order-fuzzy-fluctuation Trends and Back Propagation Neural Network. PLoS One 2018; 13:e0192366. [PMID: 29420584 PMCID: PMC5805297 DOI: 10.1371/journal.pone.0192366] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Accepted: 01/22/2018] [Indexed: 11/19/2022] Open
Abstract
In this paper, we propose a hybrid method to forecast the stock prices called High-order-fuzzy-fluctuation-Trends-based Back Propagation(HTBP)Neural Network model. First, we compare each value of the historical training data with the previous day's value to obtain a fluctuation trend time series (FTTS). On this basis, the FTTS blur into fuzzy time series (FFTS) based on the fluctuation of the increasing, equality, decreasing amplitude and direction. Since the relationship between FFTS and future wave trends is nonlinear, the HTBP neural network algorithm is used to find the mapping rules in the form of self-learning. Finally, the results of the algorithm output are used to predict future fluctuations. The proposed model provides some innovative features:(1)It combines fuzzy set theory and neural network algorithm to avoid overfitting problems existed in traditional models. (2)BP neural network algorithm can intelligently explore the internal rules of the actual existence of sequential data, without the need to analyze the influence factors of specific rules and the path of action. (3)The hybrid modal can reasonably remove noises from the internal rules by proper fuzzy treatment. This paper takes the TAIEX data set of Taiwan stock exchange as an example, and compares and analyzes the prediction performance of the model. The experimental results show that this method can predict the stock market in a very simple way. At the same time, we use this method to predict the Shanghai stock exchange composite index, and further verify the effectiveness and universality of the method.
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Affiliation(s)
- Hongjun Guan
- School of Management Science and Engineering, Shandong University of Finance and Economics, Jinan, Shandong, China
| | - Zongli Dai
- School of Management Science and Engineering, Shandong University of Finance and Economics, Jinan, Shandong, China
| | - Aiwu Zhao
- School of Management, Jiangsu University, Zhenjiang, Jiangsu, China
- * E-mail: ,
| | - Jie He
- School of Management Science and Engineering, Shandong University of Finance and Economics, Jinan, Shandong, China
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Qu F, Meng L, Yu J, Liu J, Sun J, Yang H, Dong L. Influences of micro-geomorphology on the stoichiometry of C, N and P in Chenier Island soils and plants in the Yellow River Delta, China. PLoS One 2017; 12:e0189431. [PMID: 29236766 PMCID: PMC5728511 DOI: 10.1371/journal.pone.0189431] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2017] [Accepted: 11/25/2017] [Indexed: 11/19/2022] Open
Abstract
Studies have indicated that consistent or well-constrained (relatively low variability) carbon:nitrogen:phosphorus (C:N:P) ratios exist in large-scale ecosystems, including both marine and terrestrial ecosystems. Little is known about the C, N and P stoichiometric ratios that exist in the soils and plants of Chenier Island in the Yellow River Delta (YRD). We examined the distribution patterns and relationships of C, N and P stoichiometry in the soils and plants of Chenier Island, as well as the potential influences of the island’s micro-geomorphology. Based on a study of four soil profile categories and Phragmites australis and Suaeda heteroptera plant tissues, our results showed that micro-geomorphology could leave a distinct imprint on the soil and plant elemental stoichiometry of Chenier Island; significant variation in the atomic C:N:P ratios (RCNP) existed in soils and plants, indicating that the RCNP values in both the soil and plants are not well constrained at the Chenier Island scale. RCN and RCP in Chenier Island soils were high, whereas the RNP values were comparatively low, indicating that the ecosystems of Chenier Island are nutrient-limited by N and P. However, the RNP values in P. australis and S. heteroptera plant tissues were high, suggesting that the plants of Chenier Island are nutrient-limited by P. Finally, we suggest that soil and plant N:P ratios may be good indicators of the soil and plant nutrient status during soil development and plant growth, which could be a useful reference for restoring the degraded soils of Chenier Island.
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Affiliation(s)
- Fanzhu Qu
- Shandong Provincial Key Laboratory of Eco-Environmental Science for Yellow River Delta, Binzhou University, Binzhou, Shandong, P. R. China
| | - Ling Meng
- Shandong Provincial Key Laboratory of Eco-Environmental Science for Yellow River Delta, Binzhou University, Binzhou, Shandong, P. R. China
- Institute of coastal ecology, LuDong University, Yantai, Shanodng, P.R. China
| | - Junbao Yu
- Institute of coastal ecology, LuDong University, Yantai, Shanodng, P.R. China
- * E-mail:
| | - Jingtao Liu
- Shandong Provincial Key Laboratory of Eco-Environmental Science for Yellow River Delta, Binzhou University, Binzhou, Shandong, P. R. China
| | - Jingkuan Sun
- Shandong Provincial Key Laboratory of Eco-Environmental Science for Yellow River Delta, Binzhou University, Binzhou, Shandong, P. R. China
| | - Hongjun Yang
- Shandong Provincial Key Laboratory of Eco-Environmental Science for Yellow River Delta, Binzhou University, Binzhou, Shandong, P. R. China
| | - Linshui Dong
- Shandong Provincial Key Laboratory of Eco-Environmental Science for Yellow River Delta, Binzhou University, Binzhou, Shandong, P. R. China
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Wang Y, Wang G. Two S-type Z-eigenvalue inclusion sets for tensors. J Inequal Appl 2017; 2017:152. [PMID: 28680255 PMCID: PMC5487936 DOI: 10.1186/s13660-017-1428-6] [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] [Figures] [Subscribe] [Scholar Register] [Received: 05/10/2017] [Accepted: 06/16/2017] [Indexed: 06/07/2023]
Abstract
In this paper, we present two S-type Z-eigenvalue inclusion sets involved with a nonempty proper subset S of N for general tensors. It is shown that the new sets are tighter than those provided by Wang et al. (Discrete Contin. Dyn. Syst., Ser. B 22(1):187-198, 2017). Furthermore, we obtain upper bounds for the spectral radius of weakly symmetric nonnegative tensors, which are sharper than existing results.
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Affiliation(s)
- Yanan Wang
- School of Management Science, Qufu Normal University, Rizhao, Shandong 276826 P.R. China
| | - Gang Wang
- School of Management Science, Qufu Normal University, Rizhao, Shandong 276826 P.R. China
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Li F, Zhou X, Zhou H, Jia J, Li L, Zhai S, Yan B. Reducing Both Pgp Overexpression and Drug Efflux with Anti-Cancer Gold-Paclitaxel Nanoconjugates. PLoS One 2016; 11:e0160042. [PMID: 27467397 PMCID: PMC4965149 DOI: 10.1371/journal.pone.0160042] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2016] [Accepted: 07/12/2016] [Indexed: 11/21/2022] Open
Abstract
Repeated administrations of anti-cancer drugs to patients often induce drug resistance. P-glycoprotein (Pgp) facilitates an efficient drug efflux, preventing cellular accumulation of drugs and causing multi-drug resistance (MDR). In this study, we developed a gold-paclitaxel nanoconjugate system to overcome MDR. Gold nanoparticles (GNPs) were conjugated with β-cyclodextrin enclosing paclitaxel (PTX) molecules and PEG molecules. GNP conjugates were effectively endocytosed by both drug-sensitive human lung cancer H460 cells and Pgp-overexpressed drug-resistant H460PTX cells. Compared with PTX, PGNPs did not induce the Pgp overexpression in drug-sensitive H460 cells after long-term treatment and also avoided being pumped out of cells by overexpressed Pgp molecules in H460PTX with a 17-fold lower EC50 compared to PTX. Fluorescent microscopy and flow cytometry further confirmed that fluorescent labeled PGNPs (f-PGNPs) maintained a high cellular PTX level in both H460 and H460PTX cells. These results demonstrated that nano-drug conjugates were able to avoid the development of drug resistance in sensitive cells and evade Pgp-mediated drug resistance and to maintain a high cytotoxicity in drug-resistant cancer cells. These findings exemplify a powerful nanotechnological approach to the long-lasting issue of chemotherapy-induced drug resistance.
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Affiliation(s)
- Fei Li
- School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, China
| | - Xiaofei Zhou
- School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, China
| | - Hongyu Zhou
- School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, China
| | - Jianbo Jia
- School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, China
| | - Liwen Li
- School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, China
| | - Shumei Zhai
- School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, China
- * E-mail: (BY); (SZ)
| | - Bing Yan
- School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, China
- * E-mail: (BY); (SZ)
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