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Du X, Brooks D, Oh P, Marzolini S. Sex Differences in Depressive Symptoms in 1308 Patients Post-Stroke at Entry to Cardiac Rehabilitation. J Cardiopulm Rehabil Prev 2024; 44:202-211. [PMID: 38300273 DOI: 10.1097/hcr.0000000000000848] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/02/2024]
Abstract
PURPOSE The objective of this study was to determine whether a sex difference exists in the prevalence of post-stroke depressive symptoms (PSDS) at entry to cardiac rehabilitation (CR) and to determine the correlates of PSDS in all patients, and in women and men separately. METHODS People post-stroke at entry to CR from database records (2006-2017) were included. Bivariate analyses identified PSDS correlates (≥16 on the Center for Epidemiologic Studies Depression Scale) in all patients and women and men separately. RESULTS Patients (n = 1308, 28.9% women), mean age of 63.9 ± 12.9 yr, were 24.2 ± 9.9 mo post-stroke at CR entry. Among all patients, 30.0% had PSDS. A greater proportion of women than men had PSDS (38.6 vs 26.6%; P < .001). Correlates of PSDS in all patients were sex (women) (OR = 1.6: 95% CI, 1.14-2.12), being unemployed, ≤60 yr old, prescribed antidepressant medication, having lower cardiorespiratory fitness (peak oxygen uptake [V̇ o2peak ]), chronic obstructive pulmonary disease (COPD), higher body mass index (BMI), no transient ischemic attack, and longer time from stroke to CR entry (>12 mo). Correlates in women were being obese (BMI ≥ 30), 51-70 yr old, prescribed antidepressant medication, and not married. Correlates in men were being ≤60 yr old, unemployed, prescribed antidepressant medication, having lower V̇ o2peak , sleep apnea, COPD, and no hypertension. CONCLUSION Women were disproportionately affected by PSDS at entry to CR in bivariate and multivariable analyses. Women and men had mostly unique correlates of PSDS, indicating tailored strategies to address PSDS are required. PSDS disproportionately affected patients with longer delay to CR entry, suggesting efforts should target timely referral to facilitate earlier and repeated assessments and management.
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Affiliation(s)
- XiaoWei Du
- Author Affiliations: Rehabilitation Sciences Institute, Temerty Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada (Ms Du and Drs Brooks, Oh, and Marzolini); Toronto Rehabilitation Institute (KITE), University Health Network, Toronto, Ontario, Canada (Ms Du and Drs Oh and Marzolini); School of Rehabilitation Science, McMaster University, Hamilton, Ontario, Canada (Dr Brooks); and Faculty of Kinesiology & Physical Education, University of Toronto, Toronto, Ontario, Canada (Drs Oh and Marzolini)
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Yu D, Huang NN, Du XW. Review of the Chemical Composition and Biological Activities of Essential Oils from Artemisia Argyi, Artemisia Princeps, and Artemisia Montana. Curr Top Med Chem 2023; 23:1522-1541. [PMID: 37638613 DOI: 10.2174/1568026623666230330152345] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [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: 06/13/2022] [Revised: 01/20/2023] [Accepted: 01/24/2023] [Indexed: 04/05/2023]
Abstract
BACKGROUND Artemisia argyi Lévl. et Van., Artemisia princeps Pamp., and Artemisia montana Pamp., which are the sources of mugwort, have been popular across East Asian countries for nearly 2000 years now. Essential oils are the major chemical component obtained from them, exhibiting a variety of biological activities. OBJECTIVE This review mainly focuses on the chemical composition and biological activities of A. argyi essential oil (AAEO), A. princeps essential oil (APEO), and A. montana essential oil (AMEO), with a special focus on their common and specific characteristics. The traditional use, distribution, and botany of A. argyi, A. princeps, and A. montana have also been summarized. In addition, the pharmacokinetics of AAEO was involved. METHODS We collected literature from online and offline databases by entering the following keywords: mugwort, wormwood, A. argyi, A. princeps, A. montana, essential oil, and volatile oil. No language limitation was present in our search. RESULTS A. argyi, A. princeps, and A. montana were used as traditional medicine, food, and health care products for a long time in Asia. They are widely distributed in most parts of China, Korea, and Japan. AAEO, APEO, and AMEO composed of monoterpenes, sesquiterpenes and their derivatives, alkanes, olefins, etc. Most of the specific compounds of AAEO were monoterpenoids, nearly half of the specific compounds of APEO were aliphatic hydrocarbons, and the sesquiterpenes were the typical specific compounds of AMEO. The mugwort essential oil showed multiple biological activities, such as anti-microbial, anti-inflammatory, antioxidant, antitumor, anticoagulation, sedative, and insecticide. CONCLUSION The present review provided insight into the chemical composition and biological activity of AAEO, APEO, and AMEO. The comprehensive literature showed that they possessed wide application prospects in various fields. However, they should be studied in more depth. The underlying bioactive mechanisms should be elucidated and their toxicity and quality control should be determined.
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Affiliation(s)
- Dan Yu
- Key Laboratory of Chinese Materia Medica, Ministry of Education, Pharmaceutical College, Heilongjiang University of Chinese Medicine, 24 Heping Road, Harbin, 150040, China
| | - Nan-Nan Huang
- Key Laboratory of Chinese Materia Medica, Ministry of Education, Pharmaceutical College, Heilongjiang University of Chinese Medicine, 24 Heping Road, Harbin, 150040, China
| | - Xiao-Wei Du
- Key Laboratory of Chinese Materia Medica, Ministry of Education, Pharmaceutical College, Heilongjiang University of Chinese Medicine, 24 Heping Road, Harbin, 150040, China
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3
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Li ZH, Yu D, Huang NN, Wu JK, Du XW, Wang XJ. Immunoregulatory mechanism studies of ginseng leaves on lung cancer based on network pharmacology and molecular docking. Sci Rep 2021; 11:18201. [PMID: 34521875 PMCID: PMC8440634 DOI: 10.1038/s41598-021-97115-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2021] [Accepted: 08/17/2021] [Indexed: 02/08/2023] Open
Abstract
Panax ginseng is one of the oldest and most generally prescribed herbs in Eastern traditional medicine to treat diseases. Several studies had documented that ginseng leaves have anti-oxidative, anti-inflammatory, and anticancer properties similar to those of ginseng root. The aim of this research was to forecast of the molecular mechanism of ginseng leaves on lung cancer by molecular docking and network pharmacology so as to decipher ginseng leaves' entire mechanism. The compounds associated with ginseng leaves were searched by TCMSP. TCMSP and Swiss Target Prediction databases were used to sort out the potential targets of the main chemical components. Targets were collected from OMIM, PharmGKB, TTD, DrugBank and GeneCards which related to immunity and lung cancer. Ginseng leaves exert its lung cancer suppressive function by regulating the several signaling proteins, such as JUN, STAT3, AKT1, TNF, MAPK1, TP53. GO and KEGG analyses indicated that the immunoreaction against lung cancer by ginseng leaves might be related to response to lipopolysaccharide, response to oxidative stress, PI3K-Akt, MAPK and TNF pathway. Molecular docking analysis demonstrated that hydrogen bonding was interaction's core forms. The results of CCK8 test and qRT-PCR showed that ginseng leaves inhibit cell proliferation and regulates AKT1 and P53 expression in A549. The present study clarifies the mechanism of Ginseng leaves against lung cancer and provides evidence to support its clinical use.
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Affiliation(s)
- Zao-Hui Li
- grid.412068.90000 0004 1759 8782Pharmacy College, Heilongjiang University of Chinese Medicine, 24 Heping Road, Harbin, 150040 China ,grid.507914.eJilin Agricultural Science and Technology University, 77 Hanlin Road, Jilin, 132101 China
| | - Dan Yu
- grid.412068.90000 0004 1759 8782Pharmacy College, Heilongjiang University of Chinese Medicine, 24 Heping Road, Harbin, 150040 China
| | - Nan-Nan Huang
- grid.412068.90000 0004 1759 8782Pharmacy College, Heilongjiang University of Chinese Medicine, 24 Heping Road, Harbin, 150040 China
| | - Jun-Kai Wu
- grid.412068.90000 0004 1759 8782Pharmacy College, Heilongjiang University of Chinese Medicine, 24 Heping Road, Harbin, 150040 China
| | - Xiao-Wei Du
- grid.412068.90000 0004 1759 8782Pharmacy College, Heilongjiang University of Chinese Medicine, 24 Heping Road, Harbin, 150040 China
| | - Xi-Jun Wang
- grid.412068.90000 0004 1759 8782Pharmacy College, Heilongjiang University of Chinese Medicine, 24 Heping Road, Harbin, 150040 China
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Du XW, Li G, Liu J, Zhang CY, Liu Q, Wang H, Chen TS. Comprehensive analysis of the cancer driver genes in breast cancer demonstrates their roles in cancer prognosis and tumor microenvironment. World J Surg Oncol 2021; 19:273. [PMID: 34507558 PMCID: PMC8434726 DOI: 10.1186/s12957-021-02387-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Accepted: 08/31/2021] [Indexed: 12/28/2022] Open
Abstract
Background Breast cancer is the most common malignancy in women. Cancer driver gene-mediated alterations in the tumor microenvironment are critical factors affecting the biological behavior of breast cancer. The purpose of this study was to identify the expression characteristics and prognostic value of cancer driver genes in breast cancer. Methods The Cancer Genome Atlas (TCGA) and Gene Expression Omnibus (GEO) datasets are used as the training and test sets. Classified according to cancer and paracancerous tissues, we identified differentially expressed cancer driver genes. We further screened prognosis-associated genes, and candidate genes were submitted for the construction of a risk signature. Functional enrichment analysis and transcriptional regulatory networks were performed to search for possible mechanisms by which cancer driver genes affect breast cancer prognosis. Results We identified more than 200 differentially expressed driver genes and 27 prognosis-related genes. High-risk group patients had a lower survival rate compared to the low-risk group (P<0.05), and risk signature showed high specificity and sensitivity in predicting the patient prognosis (AUC 0.790). Multivariate regression analysis suggested that risk scores can independently predict patient prognosis. Further, we found differences in PD-1 expression, immune score, and stromal score among different risk groups. Conclusion Our study confirms the critical prognosis role of cancer driver genes in breast cancer. The cancer driver gene risk signature may provide a novel biomarker for clinical treatment strategy and survival prediction of breast cancer.
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Affiliation(s)
| | - Gao Li
- Department of Oncology, Seventh People's Hospital of Shanghai University of Traditional Chinese Medicine, Shanghai, 200000, China
| | - Juan Liu
- Department of Pharmacy, Seventh People's Hospital of Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Chun-Yan Zhang
- Department of Central Laboratory, Seventh People's Hospital of Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Qiong Liu
- Office of Academic Research, Seventh People's Hospital of Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Hao Wang
- Department of Oncology, Seventh People's Hospital of Shanghai University of Traditional Chinese Medicine, Shanghai, 200000, China.
| | - Ting-Song Chen
- Department of Oncology, Seventh People's Hospital of Shanghai University of Traditional Chinese Medicine, Shanghai, 200000, China.
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Bin B, Lyu B, Yang Y, Zhang HM, Hao QW, Wang FD, Dai C, Du XW, Fu J, Li YY, Li J, Wang QP. A compact electron beam ion trap in support of high-temperature plasma diagnostics based on conduction-cooled superconducting coils. Rev Sci Instrum 2021; 92:063512. [PMID: 34243559 DOI: 10.1063/5.0040620] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Accepted: 05/22/2021] [Indexed: 06/13/2023]
Abstract
Spectroscopic diagnostics of future fusion reactor plasmas require information on impurity line emissions, especially for relevant high-Z metal elements (e.g., tungsten). These materials will be widely used as plasma facing components for their high heat tolerance and low sputtering yield. Based on an electron beam ion trap, a compact impurity spectra platform is developed to mimic the high-temperature environment of a fusion reactor. The proposed platform can deliver a focused e-beam at energies over 30 keV using a confining magnetic field of ∼1.0 T generated by two superconducting coils (NbTi). Cooled by a closed-loop cryocooler, the coils can avoid the usage of a complicated cryogenic system involving the handling of liquid helium. For spectroscopic studies of highly charged ions, a spherically curved crystal spectrometer is proposed to measure a wavelength range around 2-4 Å covering the typical wavelength range expected to be emitted by metal ions in a fusion plasma. This paper reports the design and development progress of the platform.
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Affiliation(s)
- B Bin
- Institute of Plasma Physics, HFIPS, Chinese Academy of Sciences, Hefei 230031, China
| | - B Lyu
- Institute of Plasma Physics, HFIPS, Chinese Academy of Sciences, Hefei 230031, China
| | - Y Yang
- Institute of Modern Physics, Fudan University, Shanghai 200433, China
| | - H M Zhang
- Institute of Plasma Physics, HFIPS, Chinese Academy of Sciences, Hefei 230031, China
| | - Q W Hao
- Institute of Plasma Physics, HFIPS, Chinese Academy of Sciences, Hefei 230031, China
| | - F D Wang
- Institute of Plasma Physics, HFIPS, Chinese Academy of Sciences, Hefei 230031, China
| | - C Dai
- Institute of Plasma Physics, HFIPS, Chinese Academy of Sciences, Hefei 230031, China
| | - X W Du
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, China
| | - J Fu
- Institute of Plasma Physics, HFIPS, Chinese Academy of Sciences, Hefei 230031, China
| | - Y Y Li
- Institute of Plasma Physics, HFIPS, Chinese Academy of Sciences, Hefei 230031, China
| | - J Li
- Institute of Plasma Physics, HFIPS, Chinese Academy of Sciences, Hefei 230031, China
| | - Q P Wang
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, China
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Lim H, Jung E, Jodoin K, Du X, Airton L, Lee EY. Operationalization of intersectionality in physical activity and sport research: A systematic scoping review. SSM Popul Health 2021; 14:100808. [PMID: 34136631 PMCID: PMC8182115 DOI: 10.1016/j.ssmph.2021.100808] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Revised: 04/23/2021] [Accepted: 04/25/2021] [Indexed: 11/12/2022] Open
Abstract
Participation in and opportunities for physical activity (PA) and sports (PA inclusively hereafter) are known to vary across individuals with different social positions. Intersectionality theory may help us to better understand the complex processes of multiple interlocking systems of oppression and privilege shaped by intersections of individuals’ social categories. The objectives of this systematic scoping review were (1) to summarize the findings of articles examining PA claimed operationalization of intersectionality and (2) to identify the scope and gaps pertaining to the operationalization of intersectionality in PA research. A search was conducted in September 2019 in seven electronic databases (e.g., SPORTDiscus, Scopus, Web of Science) for relevant research articles written in English. Key search terms included “intersectionality” AND “physical activity” OR “sport”. Database searches, data screening and extraction, and narrative synthesis were conducted between September 2019 and May 2020. Of 16564 articles identified, 45 articles were included in this review. The majority of included articles used qualitative methods (n = 41), with two quantitative and two mixed-methods articles. The most frequently observed intersectional social position was sex/gender + race/ethnicity (n = 11), followed by sex/gender + race/ethnicity + sexuality (n = 6) and sex/gender + race/ethnicity + religion (n = 6). Most qualitative studies (n = 38) explicitly claimed operationalization of intersectionality as a key theoretical framework, and over half of these studies (n = 27) implicitly used intra-categorical intersectionality. Two quantitative studies were identified which examined a number of intersections simultaneously using inter-categorical intersectionality. Complex processes of individual and social-structural level factors that drive inequalities in PA opportunities and participation could be better elucidated with the operationalization of intersectionality theory. Intersectionality theory may serve as a useful framework in both qualitative and quantitative investigations. Advancement in quantitative intersectionality is critical in order to produce knowledge that could inform more inclusive PA promotion efforts. Intra-categorical intersectionality is commonly used in most qualitative investigations. Inter-categorical intersectionality is used in quantitative research. Utilizing multiplicative statistical models may advance quantitative intersectionality. Investigating varying axes of marginalization beyond sex/gender + race/ethnicity is important. Intersectionality is useful in better understanding disparities in physical activity.
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Affiliation(s)
- Heejun Lim
- School of Kinesiology and Health Studies, Queen's University, SKHS Building 28 Division Street, Kingston, ON K7L 3N6, Canada
| | - Eun Jung
- School of Kinesiology and Health Studies, Queen's University, SKHS Building 28 Division Street, Kingston, ON K7L 3N6, Canada
| | - Kaila Jodoin
- School of Kinesiology and Health Studies, Queen's University, SKHS Building 28 Division Street, Kingston, ON K7L 3N6, Canada
| | - XiaoWei Du
- School of Kinesiology and Health Studies, Queen's University, SKHS Building 28 Division Street, Kingston, ON K7L 3N6, Canada
| | - Lee Airton
- Faculty of Education, Duncan MacArthur Hall, Queen's University, Kingston, ON K7M 5R7, Canada.,Department of Gender Studies, D508 Mackintosh-Corry Hall, Queen's University, Kingston, ON K7L 3N6, Canada
| | - Eun-Young Lee
- School of Kinesiology and Health Studies, Queen's University, SKHS Building 28 Division Street, Kingston, ON K7L 3N6, Canada.,Department of Gender Studies, D508 Mackintosh-Corry Hall, Queen's University, Kingston, ON K7L 3N6, Canada
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He L, Zhang HM, Lyu B, Shen YC, Li CY, Yang WC, Fu J, Du XW, Wang FD, Wang QP, Yin XH, Wan SK, Bin B, Li YC, Dai SY, Liu B. Development and preliminary test of a space-resolved vacuum-ultraviolet spectroscopy in EAST. Rev Sci Instrum 2021; 92:043519. [PMID: 34243364 DOI: 10.1063/5.0040643] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Accepted: 03/17/2021] [Indexed: 06/13/2023]
Abstract
The impurity radiation from the divertor region of the EAST tokamak is dominantly in the wavelength range of vacuum ultraviolet (VUV) due to the elevated edge electron temperature. A space-resolved VUV spectroscopy is developed to measure impurity radiation in the divertor region. An eagle-type VUV spectrometer with a focal length of 1 m is adopted in this system, equipped with a spherical grating and a charged-coupled device (CCD) detector. The performance of the VUV spectrometer is preliminarily tested on a synchrotron radiation facility. The wavelength calibration is conducted near 65 nm. It is found that the wavelength range observed by the CCD detector is about 11.07 nm around the central wavelength of about 65 nm. With a linear dispersion of 0.0053 nm/pixel, it is possible to measure the ion temperature lower than 20 eV at the edge region by analyzing the Doppler broadening of a carbon line. These test results show that the performance of the VUV spectrometer is capable of measuring divertor radiation and analyzing the ion temperature of edge impurity ions.
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Affiliation(s)
- L He
- Institute of Plasma Physics, HFIPS, Chinese Academy of Sciences, Hefei 230031, China
| | - H M Zhang
- Institute of Plasma Physics, HFIPS, Chinese Academy of Sciences, Hefei 230031, China
| | - B Lyu
- Institute of Plasma Physics, HFIPS, Chinese Academy of Sciences, Hefei 230031, China
| | - Y C Shen
- Hefei Normal University, Hefei 230601, China
| | - C Y Li
- Anhui Spectreation Instrument Co. Ltd., Hefei 230088, China
| | - W C Yang
- Anhui Spectreation Instrument Co. Ltd., Hefei 230088, China
| | - J Fu
- Institute of Plasma Physics, HFIPS, Chinese Academy of Sciences, Hefei 230031, China
| | - X W Du
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, China
| | - F D Wang
- Institute of Plasma Physics, HFIPS, Chinese Academy of Sciences, Hefei 230031, China
| | - Q P Wang
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, China
| | - X H Yin
- School of Electrical Engineering, University of South China, Hengyang 420001, China
| | - S K Wan
- Institute of Plasma Physics, HFIPS, Chinese Academy of Sciences, Hefei 230031, China
| | - B Bin
- Institute of Plasma Physics, HFIPS, Chinese Academy of Sciences, Hefei 230031, China
| | - Y C Li
- Institute of Plasma Physics, HFIPS, Chinese Academy of Sciences, Hefei 230031, China
| | - S Y Dai
- School of Physics, Dalian University of Technology, Dalian 116024, China
| | - B Liu
- Southwestern Jiaotong University, Chengdu 610031, China
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Sun L, Liu WK, Du XW, Liu XL, Li G, Yao Y, Han T, Li WY, Gu J. Large-scale transcriptome analysis identified RNA methylation regulators as novel prognostic signatures for lung adenocarcinoma. Ann Transl Med 2020; 8:751. [PMID: 32647676 PMCID: PMC7333141 DOI: 10.21037/atm-20-3744] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [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] [Indexed: 12/15/2022]
Abstract
Background The abnormal expression of genes is an essential factor affecting the prognosis of cancer. RNA modification is a way of regulating post-transcriptional levels, including m6A, m5C, m1A RNA methylation. Studies have found that RNA methylation regulates tumorigenesis development and stem cell regeneration. However, there are few studies on lung adenocarcinoma. This study aims to explore the clinical value of RNA methylation for lung adenocarcinoma. Methods We summarized thirty-one RNA methylation regulators. The training set was obtained from The Cancer Genome Atlas (TCGA) database, and the test set was obtained from the Gene Expression Omnibus (GEO) database. The Wilcoxon test was used to analyze the expression of RNA methylation regulators. We constructed tumor subgroup models and risk models based on the expression of those regulators. Principal component analysis (PCA) and the receiver operating characteristic (ROC) confirmed the accuracy of the models. Real-time polymerase chain reaction (PCR) validates the results in vitro. Results Most RNA methylation regulators had distinct expressions in tumor tissues and adjacent tissues (P<0.05). All the models showed high predictive performance (AUC: 0.65-0.82), and the five-year survival of patients in each group was statistically different (P<0.05). The patients in the high-risk group were more likely to have a higher stage, more lymph node metastases, and distant metastases, showing a poor clinical outcome. Patients with high expression of NOP2 or HNRNP were more likely to have a poorly differentiated in vitro experiment. Conclusions With our study, we found that the expressions of most RNA methylation regulators were significantly different in cancer and para-cancerous tissues. Different molecular phenotypes constructed by RNA methylation regulators can be independent risk factors for the prognosis of lung adenocarcinoma. Our study demonstrates the critical role of RNA methylation in lung adenocarcinoma, and it is expected to supply a reference for the prognostic stratification and treatment strategy development of lung adenocarcinoma.
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Affiliation(s)
- Lei Sun
- Department of Thoracic Surgery, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Wen-Ke Liu
- Department of Thoracic Surgery, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Xiao-Wei Du
- Department of Oncology, General Hospital of Northern Theater Command, Shenyang, China.,Jinzhou Medical University, Jinzhou, China
| | - Xiang-Li Liu
- Department of Thoracic Surgery, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Gao Li
- Department of Oncology, General Hospital of Northern Theater Command, Shenyang, China
| | - Yao Yao
- Department of Thoracic Surgery, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Tao Han
- Department of Oncology, General Hospital of Northern Theater Command, Shenyang, China
| | - Wen-Ya Li
- Department of Thoracic Surgery, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Jia Gu
- Department of Otolaryngology, The First Affiliated Hospital of China Medical University, Shenyang, China
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Du XW, Hou DS, Li X, Sun DP, Lan JF, Zhu JL, Ye WJ. Symmetric Continuously Tunable Photonic Band Gaps in Blue-Phase Liquid Crystals Switched by an Alternating Current Field. ACS Appl Mater Interfaces 2019; 11:22015-22020. [PMID: 31132240 DOI: 10.1021/acsami.9b04577] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Symmetric continuously tunable three-dimensional (3D) liquid photonic crystals have been investigated using self-organized blue-phase liquid crystal films. The photonic band gap in the overall visible spectrum can be tuned continuously, reversibly, and rapidly as the applied electric field changes. After driven by the applied field, four-time enhancement of the reflectivity results in more vivid reflection colors. A lasing emission of tuning working wavelength has been demonstrated by using the dye-doped blue-phase liquid crystal film. With the advantages of fast response speed, no alignment layer, large-scale electrically shift of the photonic band gap, and macro optical isotropy, this self-assembled soft material has many potential applications in high-performance reflective full-color display, 3D tunable lasers, and nonlinear optics.
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Affiliation(s)
- Xiao-Wei Du
- Department of Applied Physics , Hebei University of Technology , Tianjin 300401 , China
| | - De-Shan Hou
- Department of Applied Physics , Hebei University of Technology , Tianjin 300401 , China
| | - Xuan Li
- Department of Applied Physics , Hebei University of Technology , Tianjin 300401 , China
| | - Dong-Peng Sun
- Department of Applied Physics , Hebei University of Technology , Tianjin 300401 , China
| | - Jiong-Fang Lan
- Department of Applied Physics , Hebei University of Technology , Tianjin 300401 , China
| | - Ji-Liang Zhu
- Department of Applied Physics , Hebei University of Technology , Tianjin 300401 , China
| | - Wen-Jiang Ye
- Department of Applied Physics , Hebei University of Technology , Tianjin 300401 , China
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Xiao SF, Du XW, Zhang JB. [Perioperative airway management of OSA patients]. Lin Chung Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2019; 33:295-297. [PMID: 30970396 DOI: 10.13201/j.issn.1001-1781.2019.04.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [Subscribe] [Scholar Register] [Received: 11/02/2018] [Indexed: 11/12/2022]
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Hu RJ, Chen J, Delgado-Aparicio LF, Wang QP, Du XW, Shen J, Yang XS, Wang FD, Fu J, Li YY, Bitter M, Hill KW, Pablant NA, Lee SG, Shi YJ, Wan BN, Ye MY, Lyu B. Upgrade of X-ray crystal spectrometer for high temperature measurement using neon-like xenon lines on EAST. Rev Sci Instrum 2018; 89:10F110. [PMID: 30399886 DOI: 10.1063/1.5038885] [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] [Subscribe] [Scholar Register] [Received: 05/06/2018] [Accepted: 06/13/2018] [Indexed: 06/08/2023]
Abstract
A two-crystal X-ray spectrometer system has been implemented in the EAST tokamak to simultaneously diagnose high- and low-temperature plasmas using He- and H-like argon spectra. But for future fusion devices like ITER and Chinese Fusion Engineering Test Reactor (CFETR), argon ions become fully stripped in the core and the intensity of the H-like lines will be significantly at high temperatures (Te > 5 keV). With increasing auxiliary heating power on EAST, the core plasma temperature could also reach 5 keV and higher. In such conditions, the use of a xenon puff becomes an appropriate choice for both ion-temperature and flow-velocity measurements. A new two-crystal system using a quartz 110 crystal (2d = 4.913 Å) to view He-like argon lines and a quartz 011 crystal (2d = 6.686 Å) to view Ne-like xenon spectra has been deployed on a poloidal X-ray crystal spectrometer. While the He-like argon spectra will be used to measure the plasma temperature in the edge plasma region, the Ne-like xenon spectra will be used for measurement in the hot core. The new crystal arrangement allows a wide temperature measurement ranging from 0.5 to 10 keV or even higher, being the first tests for burning plasmas like ITER and CFETR. The preliminary result of lab-tests, Ne-like xenon lines measurement will be presented.
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Affiliation(s)
- R J Hu
- School of Physical Sciences, University of Science and Technology of China, Hefei 230026, China
| | - J Chen
- School of Physical Sciences, University of Science and Technology of China, Hefei 230026, China
| | | | - Q P Wang
- School of Physical Sciences, University of Science and Technology of China, Hefei 230026, China
| | - X W Du
- School of Physical Sciences, University of Science and Technology of China, Hefei 230026, China
| | - J Shen
- School of Physical Sciences, University of Science and Technology of China, Hefei 230026, China
| | - X S Yang
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China
| | - F D Wang
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China
| | - J Fu
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China
| | - Y Y Li
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China
| | - M Bitter
- Princeton Plasma Physics Laboratory, Princeton, New Jersey 08543, USA
| | - K W Hill
- Princeton Plasma Physics Laboratory, Princeton, New Jersey 08543, USA
| | - N A Pablant
- Princeton Plasma Physics Laboratory, Princeton, New Jersey 08543, USA
| | - S G Lee
- National Fusion Research Institute, Daejeon 305-333, South Korea
| | - Y J Shi
- Department of Nuclear Engineering, Seoul National University, Seoul 151-742, South Korea
| | - B N Wan
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China
| | - M Y Ye
- School of Physical Sciences, University of Science and Technology of China, Hefei 230026, China
| | - B Lyu
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China
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12
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Fan H, Zhao JG, Yan JQ, Du GQ, Fu QZ, Shi J, Yang YH, Du XW, Bai XL. Effect of Notch1 gene on remyelination in multiple sclerosis in mouse models of acute demyelination. J Cell Biochem 2018; 119:9284-9294. [PMID: 30010211 DOI: 10.1002/jcb.27197] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2018] [Accepted: 05/24/2018] [Indexed: 12/23/2022]
Abstract
This study aims to explore the effects of Notch1 gene on remyelination in multiple sclerosis (MS). A mouse model of acute demyelination was successfully established and the model mice were grouped as cuprizone (CPZ) group, CPZ + small interfering RNA (siRNA)-Notch1 (siNotch1) group, and CPZ + siRNA negative control (NC) group. Meanwhile, another 3 groups (control, control + siNotch1, and control + siRNA NC) were established in normal mice. The changes of weight and maintenance time in rotating drum of mice were observed. Western blot analysis for the protein expressions related to Notch signaling pathway and oligodendrocyte (OL) differentiation in the corpus callosum of the mice. After model establishment, the weight of CPZ-induced demyelinated mice was decreased. During the repair period, the balance ability and movement of the mice was recovered, especially for those injected with siNotch1 plasmid. After model establishment, the number of myelinated axons was decreased. In comparison with the CPZ and CPZ siRNA NC groups, the CPZ + siNotch1 group had a decrease in the number of premature OLs, but increase in mature OLs, and a decrease in oligodendrocyte precursor cells and astrocytes. The expressions of proteins related to Notch signaling pathway, such as HES, Jagged-1 were decreased in the CPZ + siNotch1 group in contrast to the CPZ and CPZ + siRNA groups, but the OL-related transcription factor Sox10 was increased in the CPZ + siNotch1 group than in the CPZ + siRNA NC and CPZ groups, and Id2 was decreased. Our study provided evidence that the inhibition of Notch1 gene could accelerate remyelination in MS.
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Affiliation(s)
- Hua Fan
- The First Affiliated Hospital, College of Clinical Medicine of Henan University of Science and Technology, Luoyang, China
| | - Jie-Gang Zhao
- The First Affiliated Hospital, College of Clinical Medicine of Henan University of Science and Technology, Luoyang, China
| | - Jun-Qiang Yan
- The First Affiliated Hospital, College of Clinical Medicine of Henan University of Science and Technology, Luoyang, China
| | - Gan-Qin Du
- The First Affiliated Hospital, College of Clinical Medicine of Henan University of Science and Technology, Luoyang, China
| | - Qi-Zhi Fu
- The First Affiliated Hospital, College of Clinical Medicine of Henan University of Science and Technology, Luoyang, China
| | - Jian Shi
- The First Affiliated Hospital, College of Clinical Medicine of Henan University of Science and Technology, Luoyang, China
| | - Yan-Hui Yang
- The First Affiliated Hospital, College of Clinical Medicine of Henan University of Science and Technology, Luoyang, China
| | - Xiao-Wei Du
- The First Affiliated Hospital, College of Clinical Medicine of Henan University of Science and Technology, Luoyang, China
| | - Xiao-Li Bai
- The First Affiliated Hospital, College of Clinical Medicine of Henan University of Science and Technology, Luoyang, China
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13
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Gao L, Gao YP, Du XW, Ye WJ, Xu Q, Zhu JL, Han WM, Chen CY, Sun YB. Electro-optical performance of polymer-stabilized sphere phase liquid crystal displays. Opt Express 2017; 25:18009-18016. [PMID: 28789288 DOI: 10.1364/oe.25.018009] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Accepted: 07/11/2017] [Indexed: 06/07/2023]
Abstract
Electro-optical properties of polymer-stabilized sphere phase liquid crystal (PS-SPLC) switching devices are analyzed and validated experimentally. The experimental results show the voltage-dependent transmittance curves of PS-SPLC devices. A diffraction approach, called extended anomalous diffraction approach, is proposed to fit the experimental data. Good agreement between experiment and model is obtained. The scattering model provides practical guidance for the improvement of PS-SPLC displays performance and optimization.
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14
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Abstract
This work analyzes the anti-icing performance of flat aluminum surfaces coated with widely used alkyl-group based layers of octadecyltrimethoxysilane, fluorinated alkylsilane and stearic acid as they are subjected to repeated icing/deicing cycles. The wetting properties of the samples upon long-term immersion in water are also evaluated. The results demonstrate that smooth aluminum surfaces grafted with alkyl groups are prone to gradual degradation of their hydrophobic and icephobic properties, which is caused by interactions and reactions with both ice and liquid water. This implies that alkyl-group based monolayers on aluminum surfaces are not likely to be durable icephobic coatings unless their durability in contact with ice and/or water is significantly improved.
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Affiliation(s)
- S A Kulinich
- Institute of Innovative Science and Technology, Tokai University, Hiratsuka, Kanagawa 259-1292, Japan.
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15
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Huang C, Mao J, Chen XM, Yang J, Du XW. Laser-activated gold catalysts for liquid-phase growth of cadmium selenide nanowires. Chem Commun (Camb) 2015; 51:2145-8. [PMID: 25554220 DOI: 10.1039/c4cc09276g] [Citation(s) in RCA: 6] [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] [Indexed: 11/21/2022]
Abstract
A laser-activated-catalyst (LAC) technique was developed to grow CdSe nanowires in liquid medium at room temperature. The gold catalysts dispersed in the precursor solution were activated by a pulsed laser so as to decompose the precursor and catalyse the nanowire growth simultaneously. The LAC technique can achieve accurate positioning of nanowires, which is beneficial for device fabrication.
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Affiliation(s)
- C Huang
- Institute of New-Energy Materials, School of Materials Science and Engineering, Tianjin University, Tianjin 300072, People's Republic of China.
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16
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Li YY, Fu J, Lyu B, Du XW, Li CY, Zhang Y, Yin XH, Yu Y, Wang QP, von Hellermann M, Shi YJ, Ye MY, Wan BN. Development of the charge exchange recombination spectroscopy and the beam emission spectroscopy on the EAST tokamak. Rev Sci Instrum 2014; 85:11E428. [PMID: 25430335 DOI: 10.1063/1.4890408] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Charge eXchange Recombination Spectroscopy (CXRS) and Beam Emission Spectroscopy (BES) diagnostics based on a heating neutral beam have recently been installed on EAST to provide local measurements of ion temperature, velocity, and density. The system design features common light collection optics for CXRS and BES, background channels for the toroidal views, multi-chord viewing sightlines, and high throughput lens-based spectrometers with good signal to noise ratio for high time resolution measurements. Additionally, two spectrometers each has a tunable grating to observe any wavelength of interest are used for the CXRS and one utilizes a fixed-wavelength grating to achieve higher diffraction efficiency for the BES system. A real-time wavelength correction is implemented to achieve a high-accuracy wavelength calibration. Alignment and calibration are performed. Initial performance test results are presented.
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Affiliation(s)
- Y Y Li
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, China
| | - J Fu
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, China
| | - B Lyu
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, China
| | - X W Du
- School of Nuclear Science and Technology, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - C Y Li
- School of Nuclear Science and Technology, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Y Zhang
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, China
| | - X H Yin
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, China
| | - Y Yu
- School of Nuclear Science and Technology, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Q P Wang
- School of Nuclear Science and Technology, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - M von Hellermann
- FOM-Institute for Plasma Physics "Rijnhuizen," Association EURATOM, Trilateral Euregio Cluster, 3430BE Nieuwegein, The Netherlands
| | - Y J Shi
- School of Nuclear Science and Technology, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - M Y Ye
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, China
| | - B N Wan
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, China
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17
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Liu CG, Wang XL, Du XW, Jiang DY, Geng NZ, Zhang SX, Zhou YY, Kuang HX. Metabolomic profiling for identification of potential biomarkers in the protective effects of modified Sinisan against liver injury in dimethylnitrosamine treated rats. Biol Pharm Bull 2014; 36:1700-7. [PMID: 24189414 DOI: 10.1248/bpb.b13-00127] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Metabolomics is a new platform based on the comprehensive analysis of low molecular weight metabolites and provides a powerful approach to discover biomarkers in biological systems. Modified Sinisan (MSNS), a traditional Chinese medicine formula, displayed bright prospects in the prevention and therapy of liver injury. However, its molecular mechanism of hepatoprotective effects remains unclear. This paper was designed to explore the effects and potential mechanisms of MSNS against dimethylnitrosamine-induced liver injury. Global metabolic profiling was performed by ultra-performance liquid chromatography/electrospray ionization quadrupole time-of-flight mass spectrometry (UPLC/ESI-Q-TOF-MS) in conjunction with multivariate data analysis and pathway analysis. Eleven serum biomarkers were identified and pathway analysis results showed that phenylalanine, tyrosine and tryptophan biosynthesis, phenylalanine metabolism, tryptophan metabolism, retinol metabolism, tyrosine metabolism were perturbed by liver injury. More importantly, MSNS has showed satisfactory pharmacological effect on liver injury through partially regulating the perturbed pathways, correlates well to the biochemical and histopathological detection results. The present study proved that the robust metabolomics approach is promising for unraveling hepatoprotective effects of MSNS and these findings provide new insights into mechanisms of the liver injury, and its pathophysiologic processes.
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Affiliation(s)
- Cheng-Gang Liu
- Institute of Basic Medicine, Heilongjiang University of Chinese Medicine
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18
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Ding CH, Du XW, Xu Y, Xu XM, Mou JC, Yu D, Wu JK, Meng FJ, Liu Y, Wang WL, Wang LJ. Screening for differentially expressed genes in endophytic fungus strain 39 during co-culture with herbal extract of its host Dioscorea nipponica Makino. Curr Microbiol 2014; 69:517-24. [PMID: 24894904 DOI: 10.1007/s00284-014-0615-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2013] [Accepted: 03/30/2014] [Indexed: 01/04/2023]
Abstract
Strain 39 is an endophytic fungus which was isolated from Dioscorea nipponica Makino (DNM). After Strain 39 co-cultured with ethanol extract of DNM rhizomes for several days, the content of saponins in this culture mixture would be obviously increased. To analyze the mechanism of this microbial transformation, we used the differential display reverse transcription polymerase chain reaction (DDRT-PCR) method to compare the transcriptomes between Strain 39 cultured in normal PD medium and in PD medium which added ethanol extract of DNM rhizomes. We amplified 29 DDRT-PCR bands using 12 primer combinations of three anchored primers and five random primers, and six bands were re-amplified. Analysis of real-time PCR and sequence alignment showed that three clones were up-regulated in sample group: squalene epoxidase, squalene synthase, and catalase, one clone was expressed only in sample group. The possible roles and origins of the above genes were discussed, and the molecular mechanism of Strain 39 biotransformation was speculated. This study is the first report of the molecular biotransformation mechanism of saponins production by endophytic fungus of DNM.
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Affiliation(s)
- Chang-Hong Ding
- Pharmacy College, Heilongjiang University of Chinese Medicine, 24 Heping Road, Harbin, 150040, China,
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19
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Gao HY, Li GY, Wang HY, Huang J, Du XW, Han Y, Wang LF, Wang JH. Constituents from Zhuyeqing Liquor with hepatoprotective effect on alcohol-induced HepaG 2 toxicity. Arch Pharm Res 2014; 38:683-90. [DOI: 10.1007/s12272-014-0414-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2013] [Accepted: 05/16/2014] [Indexed: 11/28/2022]
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20
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Gao HY, Huang J, Wang HY, Du XW, Cheng SM, Han Y, Wang LF, Li GY, Wang JH. Protective effect of Zhuyeqing liquor, a Chinese traditional health liquor, on acute alcohol-induced liver injury in mice. J Inflamm (Lond) 2013; 10:30. [PMID: 24090365 PMCID: PMC3851207 DOI: 10.1186/1476-9255-10-30] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/18/2013] [Accepted: 09/26/2013] [Indexed: 12/12/2022]
Abstract
The study first evaluated the hepatoprotective effect of Zhuyeqing Liquor (ZYQL) against acute alcohol-induced liver injury in mice. Animals were administered orally with 50% alcohol 12 ml/kg at 4 h after the doses of ZYQL everyday for fourteen consecutive days except mice in normal group. The protective effect was evaluated by biochemical parameters including serum aspartate transaminase (AST), alanine transferase (ALT), total-bilirubin (TBIL) and reduced glutathione (GSH), malondialdehyde (MDA), superoxide dismutase (SOD) in liver tissue. The result were confirmed histopathologically and the expression of TNF-α in mice liver was determined by immunohistochemistry analysis. HPLC-PDA was used for phytochemical analysis of ZYQL, and the plant source of each compound was claritied by UPLC-TOF-MS. The result showed that pretreatment with ZYQL exhibited a significant protective effect by reversing the biochemical parameters and histopathological changes in a dose depended manner. HPLC analysis indicated that ZYQL contained flavonoids, iridoids, terpenoids and phenolic acids, which might be the active chemicals. This study demonstrated the hepatoprotective activity of ZYQL, thus scientifically supported the function of its health care.
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Affiliation(s)
- Hong-Ying Gao
- School of Traditional Chinese Materia Medica 49#, Shenyang Pharmaceutical University, Wenhua Road 103, 110016 Shenyang, P, R, China.
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21
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Fu J, Ma JY, Zhang XF, Wang Y, Feng R, Chen YC, Tan XS, Zhang YY, Sun YP, Zhou Y, Ma C, He CY, Zhao ZX, Du XW. Identification of metabolites of FR429, a potential antitumor ellagitannin, transformed by rat intestinal bacteria in vitro, based on liquid chromatography–ion trap-time of flight mass spectrometry analysis. J Pharm Biomed Anal 2012; 71:162-7. [DOI: 10.1016/j.jpba.2012.07.028] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2012] [Revised: 07/05/2012] [Accepted: 07/25/2012] [Indexed: 11/24/2022]
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22
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Li XR, Ma EB, Yan LZ, Meng H, Du XW, Zhang SW, Quan ZX. Bacterial and fungal diversity in the traditional Chinese liquor fermentation process. Int J Food Microbiol 2011; 146:31-7. [DOI: 10.1016/j.ijfoodmicro.2011.01.030] [Citation(s) in RCA: 117] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2010] [Revised: 12/06/2010] [Accepted: 01/24/2011] [Indexed: 11/24/2022]
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Abstract
This work investigates the anti-ice performance of various superhydrophobic surfaces under different conditions. The adhesion strength of glaze ice (similar to that deposited during "freezing rain") is used as a measure of ice-releasing properties. The results show that the ice-repellent properties of the materials deteriorate during icing/deicing cycles, as surface asperities appear to be gradually damaged. It is also shown that the anti-icing efficiency of superhydrophobic surfaces is significantly lower in a humid atmosphere, as water condensation both on top of and between surface asperities takes place, leading to significantly larger values of ice adhesion strength. This work thus shows that superhydrophobic surfaces are not always ice-repellent and their use as anti-ice materials may therefore be limited.
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Affiliation(s)
- S A Kulinich
- Department of Applied Sciences, University of Quebec, 555 University Blvd., Saguenay, PQ, Canada G7H 2B1.
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24
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Niu KY, Yang J, Kulinich SA, Sun J, Du XW. Hollow nanoparticles of metal oxides and sulfides: fast preparation via laser ablation in liquid. Langmuir 2010; 26:16652-7. [PMID: 20942423 DOI: 10.1021/la1033146] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
In this work, diverse hollow nanoparticles of metal oxides and sulfides were prepared by simply laser ablating metal targets in properly chosen liquids. The Kirkendall voiding and the selective heating with an infrared laser were shown to work as two independent mechanisms for the formation of such hollow nanoparticles in only one- or two-step synthesis approaches. One of the prepared materials, ZnS hollow nanoparticles, showed high performance in gas sensing. The simple, fast, inexpensive technique that is proposed demonstrates very promising perspectives.
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Affiliation(s)
- K Y Niu
- School of Materials Science and Engineering, Tianjin University, Tianjin 300072, PR China
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Fu XT, Li Y, Du XW, Zhang XQ, Shi RB. [Study of quality standards on Qianshan Huoxue plaster]. Zhongguo Zhong Yao Za Zhi 2006; 31:1431-3. [PMID: 17087083] [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] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
OBJECTIVE To establish the methods of identification and assay in Qianshan Huoxue Gao. METHOD Using TLC to identify Sanchi, Dragon's Blood and using HPLC to determine the content of ginsenoside Rg1. RESULT The linear range of ginsenoside Rg1 was from 0.153 9 to 1.026 microg. The average recovery was 97.4%, RSD was 2.1%. CONCLUSION The methods are simple and have good reproducibility.
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Affiliation(s)
- Xin-Tong Fu
- Beijing Municipal Institute for Drug Control, Beijing 100035, China.
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