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Li X, Gu J, Wang C, Deng Q, Ma S, Ren Y, Xing L, Niu T. P1.14-001 The Feasibility of Predicting Radiation Pneumonitis Using Lung Equivalent Uniform Dose (LEUD) in Volumetric-Modulated Arc. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.09.1019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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152
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Ren Y, Jiao Y, Zhang L, Zheng X. Dual-Energy CT-Based Iodine Quantitation for Response Evaluation of Lung Cancers to Chemoradiation Therapy/Radiation Therapy: A Comparison with 18 FDG–PET/CT-Based PERCIST. Int J Radiat Oncol Biol Phys 2017. [DOI: 10.1016/j.ijrobp.2017.06.124] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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153
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Tang X, Ren Y, Huang S, Zhang X, Gong W. Gastrointestinal: Peroral endoscopic myotomy for distal esophageal spasm. J Gastroenterol Hepatol 2017; 32:1536. [PMID: 28845589 DOI: 10.1111/jgh.13659] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/11/2016] [Revised: 11/13/2016] [Accepted: 11/17/2016] [Indexed: 02/05/2023]
Affiliation(s)
- X Tang
- Department of Gastroenterology, Hangzhou First People's Hospital, Nanjing Medical University, Hangzhou, China
| | - Y Ren
- Department of Gastroenterology, Beijing Tsinghua Changgung Hospital, Medical Center, Tsinghua University, Beijing, China
| | - S Huang
- Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - X Zhang
- Department of Gastroenterology, Hangzhou First People's Hospital, Nanjing Medical University, Hangzhou, China
| | - W Gong
- Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, China
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154
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Gao H, Ma J, Wang X, Lv T, Liu J, Ren Y, Li Y, Zhang Y. Preliminary study on the changes of ovarian reserve, menstruation, and lymphocyte subpopulation in systemic lupus erythematosus (SLE) patients of childbearing age. Lupus 2017; 27:445-453. [PMID: 28820360 DOI: 10.1177/0961203317726378] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Objective The main aim of this study was to investigate the ovarian reserve, menstruation, and lymphocyte subpopulation in systemic lupus erythematosus (SLE) patients of childbearing age. Methods We enrolled 40 SLE patients of childbearing age and 40 age-matched healthy controls. Anti-Müllerian hormone (AMH) was tested by electrochemiluminescence, and lymphocyte subsets were tested by flow cytometry. Menstruation situation was obtained by interview. Results The AMH level of the SLE group was significantly lower than that of the control group ( p < 0.001), which was negatively correlated with erythrocyte sedimentation rate (ESR ( r = −0.316, p = 0.047)) and disease activity (SLEDAI ( r = −0.338, p = 0.033)). The AMH concentration of SLE patients with normal menstruation was higher than those with abnormal menstruation ( p < 0.001). The percentages of CD4+ T lymphocytes and NK (natural killer) cells in the SLE group were significantly lower than those in the control group ( p < 0.001). However, the percentages of B cells and CD8+ T lymphocytes in the SLE group were higher than those in the control group ( p < 0.05). Conclusion Decreased AMH and high incidence of abnormal menstruation indicated that autoimmunity activities of SLE can impair the ovarian reserve of female patients. Lymphocytes in SLE patients were in a state of disorder.
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Affiliation(s)
- H Gao
- Department of Rheumatology and Immunology, Tangdu Hospital of The Fourth Military Medical University, Xi'an, China
| | - J Ma
- Department of Rheumatology and Immunology, Tangdu Hospital of The Fourth Military Medical University, Xi'an, China
| | - X Wang
- Department of Rheumatology and Immunology, Tangdu Hospital of The Fourth Military Medical University, Xi'an, China
| | - T Lv
- Department of Rheumatology and Immunology, Tangdu Hospital of The Fourth Military Medical University, Xi'an, China
| | - J Liu
- Department of Rheumatology and Immunology, Tangdu Hospital of The Fourth Military Medical University, Xi'an, China
| | - Y Ren
- Department of Rheumatology and Immunology, Tangdu Hospital of The Fourth Military Medical University, Xi'an, China
| | - Y Li
- Department of Rheumatology and Immunology, Tangdu Hospital of The Fourth Military Medical University, Xi'an, China
| | - Y Zhang
- Department of Rheumatology and Immunology, Tangdu Hospital of The Fourth Military Medical University, Xi'an, China
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155
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Qu M, Ren Y, Liu Y, Yang Q. Studies on the chitin/chitosan binding properties of six cuticular proteins analogous to peritrophin 3 from Bombyx mori. Insect Mol Biol 2017; 26:432-439. [PMID: 28432772 DOI: 10.1111/imb.12308] [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] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Chitin deacetylation is required to make the cuticle rigid and compact through chitin chain crosslinking. Thus it is presumed that specialized proteins are required to bind deacetylated chitin chains together. However, deacetylated-chitin binding proteins have not ever been reported. In a previous work, six cuticular proteins analogous to peritrophin 3 (CPAP3s) were found to be abundant in the moulting fluid of Bombyx mori. In this study, these BmCPAP3s (BmCPAP3-A1, BmCPAP3-A2, BmCPAP3-B, BmCPAP3-C, BmCPAP3-D1 and BmCPAP3-D2) were cloned and expressed in Escherichia coli and purified using metal-chelating affinity chromatography. Their binding activities demonstrated that although all of the BmCPAP3s showed similar binding abilities toward crystalline chitin and colloidal chitin, they differed in their affinities toward partially and fully deacetylated chitin. Amongst them, BmCPAP3-D1 exhibited the highest binding activity toward deacetylated chitin. The gene expression pattern of BmCPAP3-D1 was similar to BmCPAP3-A1 and BmCPAP3-C at most stages except that it was dramatically upregulated at the beginning of the pupa to adult transition stage. This work is the first report of a chitin-binding protein, BmCPAP3-D1, which exhibits high binding affinity to deacetylated chitin.
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Affiliation(s)
- M Qu
- State Key Laboratory of Fine Chemical Engineering, School of Life Science and Biotechnology, Dalian University of Technology, Dalian, China
| | - Y Ren
- State Key Laboratory of Fine Chemical Engineering, School of Life Science and Biotechnology, Dalian University of Technology, Dalian, China
| | - Y Liu
- State Key Laboratory of Fine Chemical Engineering, School of Life Science and Biotechnology, Dalian University of Technology, Dalian, China
| | - Q Yang
- State Key Laboratory of Fine Chemical Engineering, School of Life Science and Biotechnology, Dalian University of Technology, Dalian, China
- Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
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156
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Ren Y, Kong LF, Zhang MY, Li DJ, Xu ZG, Kan YZ, Yin PZ. [Clinicopathologic characteristic of oncocytic mucoepidermoid carcinoma: report of 8 cases]. Zhonghua Bing Li Xue Za Zhi 2017; 46:499-500. [PMID: 28728226 DOI: 10.3760/cma.j.issn.0529-5807.2017.07.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
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157
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Su XM, Ren Y, Kong LF, Kang J. [Therapeutic effects of histone deacetylase inhibitor givinostat on air inflammation and high airway resistance in a murine asthma model]. Zhonghua Nei Ke Za Zhi 2017; 56:121-126. [PMID: 28162182 DOI: 10.3760/cma.j.issn.0578-1426.2017.02.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the therapeutic effects of givinostat, a histone deacetylase inhibitor (HDACI), on the development of chronic asthma with airway inflammation, airway remodeling and airway hyperresponsiveness (AHR). Methods: BALB/C mice were randomly divided into control group, asthma group, dexamethasone group and givinostat group (n=12 per group). AHR was assessed. Total cell numbers and differential counts, interleukin-4(IL-4), interleukin-5(IL-5) and interferon-γ (IFNγ) levels in the bronchoalveolar lavage fluid (BALF) were measured in the above 4 groups. The pathology of lung tissue was evaluated. Immunohistochemical (IHC) staining and Western blot were used to detect α smooth muscle actin(α-SMA) and transforming growth factor-β1(TGFβ1). Results: Compared with the asthma only group, givinostat treatment relieved airway resistance (2.96±1.01 vs 6.50±0.79, P<0.05). Total inflammatory cells [(33.04±5.62)×10(4)/ml vs (98.04±9.27)×10(4)/ml, P<0.01], eosinophil cells [(9.17±2.33)×10(4)/ml vs(37.64±6.98)×10(4)/ml, P<0.01], IL-4 [(10.12±2.98)ng/ml vs (16.88±2.78)ng/ml, P<0.05] and IL-5 [(27.09±3.62)ng/ml vs (37.86±7.34)ng/ml, P<0.05] levels were all reduced in givinostat group, while IFNγ [(91.86±23.73)pg/ml vs (60.49±11.88)pg/ml, P>0.05] was enhanced in BALF. Inflammatory cell infiltration around the airway was reduced, with decreased inflammatory cell score[(1.60±0.69)points vs (3.40±0.68) points, P<0.01] and inflammatory cell number (111.65±31.41 vs 601.25±186.85, P<0.01). The goblet cell metaplasia [(26.36±2.33)% vs (57.21±11.56)%] and collagen deposition area [(52.77±7.58)μm(2)/μm vs (111.81±12.40)μm(2)/μm] were obviously reduced (P<0.01). The expressions of α-SMA and TGFβ1 in the lung tissue were both significantly decreased (P<0.01). Conclusion: Givinostat treatment can reduce airway inflammation, airway remodeling and airway hyperresponsiveness in chronic asthma. Its effect is comparable to that of glucocorticoid hormone treatment.
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Affiliation(s)
- X M Su
- Institute of Respiratory Disease, the First Affiliated Hospital of China Medical University, Shenyang 110001, China
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158
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Xhaard C, Dumas A, Souchard V, Ren Y, Borson-Chazot F, Sassolas G, Schvartz C, Colonna M, Lacour B, Wonoroff AS, Velten M, Clero E, Maillard S, Marrer E, Bailly L, Mariné Barjoan E, Schlumberger M, Orgiazzi J, Adjadj E, Rubino C, Bouville A, Drozdovitch V, de Vathaire F. Are dietary reports in a case-control study on thyroid cancer biased by risk perception of Chernobyl fallout? Rev Epidemiol Sante Publique 2017; 65:301-308. [PMID: 28579185 DOI: 10.1016/j.respe.2017.02.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2016] [Revised: 02/07/2017] [Accepted: 02/13/2017] [Indexed: 10/19/2022] Open
Abstract
BACKGROUND In retrospective case-control studies performed following nuclear tests or nuclear accidents, individual thyroid radiation dose reconstructions are based on fallout and meteorological data from the residential area, demographic characteristics, and lifestyle as well as dietary information. Collecting the latter is a controversial step, as dietary declarations may be affected by the subjects' beliefs about their risk behavior. This report analyses the potential for such bias in a case-control study performed in eastern France. METHODS The study included 765 cases of differentiated thyroid carcinoma matched with 831 controls. Risk perceptions and beliefs of cases and controls were compared using Chi2 tests and differences in dietary reports were analyzed using a two-way ANOVA. RESULTS In general, atmospheric pollution and living near a nuclear power plant were the two major risks that may influence thyroid cancer occurrence cited by cases and controls. When focusing in particular on the consequences of the Chernobyl accident, cases were more likely to think that the consequences were responsible for thyroid cancer occurrence than controls. Vegetable consumption during the two months after the Chernobyl accident was correlated with the status of subjects, but not to their beliefs. Conversely, consumption of fresh dairy products was not correlated with the status or beliefs of subjects. CONCLUSION We found no evidence of systematic bias in dietary reports according to the status or beliefs held by subjects about the link between thyroid cancer occurrence and Chernobyl fallout. As such, these dietary reports may be used in further studies involving individual dosimetric reconstructions.
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Affiliation(s)
- C Xhaard
- Centre d'épidémiologie et de santé des populations (Cesp), U1018, epidemiology radiation group, Institut national de la santé et de la recherche médicale (Inserm), 94800 Villejuif, France; Gustave-Roussy, 94800 Villejuif, France; Université Paris-Saclay, 94800 Villejuif, France
| | - A Dumas
- Centre d'épidémiologie et de santé des populations (Cesp), U1018, epidemiology radiation group, Institut national de la santé et de la recherche médicale (Inserm), 94800 Villejuif, France; Gustave-Roussy, 94800 Villejuif, France; Université Paris-Saclay, 94800 Villejuif, France
| | - V Souchard
- Centre d'épidémiologie et de santé des populations (Cesp), U1018, epidemiology radiation group, Institut national de la santé et de la recherche médicale (Inserm), 94800 Villejuif, France; Gustave-Roussy, 94800 Villejuif, France; Université Paris-Saclay, 94800 Villejuif, France
| | - Y Ren
- Centre d'épidémiologie et de santé des populations (Cesp), U1018, epidemiology radiation group, Institut national de la santé et de la recherche médicale (Inserm), 94800 Villejuif, France; Gustave-Roussy, 94800 Villejuif, France; Université Paris-Saclay, 94800 Villejuif, France
| | - F Borson-Chazot
- Fédération d'endocrinologie, hospices civils de Lyon, groupement hospitalier Lyon-Est, 69677 Bron, France; Rhône-Alpes thyroid cancer registry, cancer research center of Lyon (UMR Inserm 1052, CNRS 5286), RTH Laennec faculty of medicine, university of Lyon, 69008 Lyon, France
| | - G Sassolas
- Rhône-Alpes thyroid cancer registry, cancer research center of Lyon (UMR Inserm 1052, CNRS 5286), RTH Laennec faculty of medicine, university of Lyon, 69008 Lyon, France
| | - C Schvartz
- Thyroid cancer registry of Champagne-Ardennes, institut Jean-Godinot, 51100 Reims, France
| | - M Colonna
- Cancer registry of Isère, 38240 Meylan, France
| | - B Lacour
- French national registry of childhood solid tumours, CHU de Nancy, 54505 Vandœuvre, France; Inserm UMRS1018, CESP, 94800 Villejuif, France
| | - A S Wonoroff
- Cancer registry of doubs, EA 3181, university hospital Besançon, 25030 Besançon, France
| | - M Velten
- Cancer Registry of Bas-Rhin, EA 3430, faculty of medicine, university of Strasbourg, 67085 Strasbourg, France
| | - E Clero
- Centre d'épidémiologie et de santé des populations (Cesp), U1018, epidemiology radiation group, Institut national de la santé et de la recherche médicale (Inserm), 94800 Villejuif, France; Gustave-Roussy, 94800 Villejuif, France; Université Paris-Saclay, 94800 Villejuif, France
| | - S Maillard
- Centre d'épidémiologie et de santé des populations (Cesp), U1018, epidemiology radiation group, Institut national de la santé et de la recherche médicale (Inserm), 94800 Villejuif, France; Gustave-Roussy, 94800 Villejuif, France; Université Paris-Saclay, 94800 Villejuif, France
| | - E Marrer
- Cancer registry of Haut-Rhin, Mulhouse hospital, 68051 Mulhouse, France
| | - L Bailly
- Public health department, university hospital Nice, 06202 Nice, France
| | - E Mariné Barjoan
- Public health department, university hospital Nice, 06202 Nice, France
| | | | - J Orgiazzi
- Department of endocrinology, Hospices civils de Lyon, 69310 Lyon, France
| | - E Adjadj
- Centre d'épidémiologie et de santé des populations (Cesp), U1018, epidemiology radiation group, Institut national de la santé et de la recherche médicale (Inserm), 94800 Villejuif, France; Université Paris-Saclay, 94800 Villejuif, France
| | - C Rubino
- Centre d'épidémiologie et de santé des populations (Cesp), U1018, epidemiology radiation group, Institut national de la santé et de la recherche médicale (Inserm), 94800 Villejuif, France; Gustave-Roussy, 94800 Villejuif, France; Université Paris-Saclay, 94800 Villejuif, France
| | - A Bouville
- Radiation epidemiology branch, division of cancer epidemiology and genetics, national cancer institute, Bethesda, USA
| | - V Drozdovitch
- Radiation epidemiology branch, division of cancer epidemiology and genetics, national cancer institute, Bethesda, USA
| | - F de Vathaire
- Centre d'épidémiologie et de santé des populations (Cesp), U1018, epidemiology radiation group, Institut national de la santé et de la recherche médicale (Inserm), 94800 Villejuif, France; Gustave-Roussy, 94800 Villejuif, France; Université Paris-Saclay, 94800 Villejuif, France.
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159
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Ren Y, You YQ, Zhou HH, Wang LX, Xu H, Li RB, Wang SJ, Xie XX, Meng YG, Lu YP. [Clinical analysis of 21 cases with short fetal femur in the third trimester]. Zhonghua Fu Chan Ke Za Zhi 2017; 52:86-92. [PMID: 28253570 DOI: 10.3760/cma.j.issn.0529-567x.2017.02.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To analyze the clinical features and to explore the etiology of short fetal femur during the third trimester. Methods: From January 2010 to June 2016, 21 singleton pregnancies with short fetal femur detected by ultrasonography during the third trimester were referred to the Chinese PLA General Hospital. Clinical data were collected, karyotype or single nucleotide polymorphism microarray was carried out to detect chromosomal abnormalities, and FGFR3 c.1138G>A mutation detection was carried out to detect achondroplasia (ACH) via invasive procedure, respectively. The deviation of femur length from the mean value of the gestational age in ultrasonography was expressed as the Z-score. The difference between ACH and isolated short femur (ISF, in the absence of associated structure abnormality or genetic abnormality) was then explored. Results: In the 21 fetuses, 11 had abnormal genetic test results(52%, 11/21), including 9 cases of ACH, 1 case of Ellis-van Creveld Syndrome and 1 case of Pallister-Killian syndrome. In the 10 ISF fetuses (48%, 10/21), 3 cases were fetal growth restriction, 1 was normal small for gestational age infant and 6 cases were unexplained. The median Z-scores for 9 cases of ACH and 10 cases of ISF in the third trimester were -5.04, -3.20, respectively. The short femur in ACH was more severe than in ISF (P=0.005) in the third trimester. Conclusions: The etiology of short fetal femur is complicated, including skeletal dysplasia, chromosomal abnormality, fetal growth restriction, as well as normal variants during fetal development. Genetic test should be considered during the antenatal consultation.
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Affiliation(s)
- Y Ren
- Department of Obstetrics and Gynecology, Chinese PLA General Hospital, Beijing 100853, China
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160
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Stevenson BJ, Cai L, Faucher C, Michie M, Berna A, Ren Y, Anderson A, Chyb S, Xu W. Walking Responses of Tribolium castaneum (Coleoptera: Tenebrionidae) to Its Aggregation Pheromone and Odors of Wheat Infestations. J Econ Entomol 2017; 110:1351-1358. [PMID: 28334232 DOI: 10.1093/jee/tox051] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2016] [Indexed: 06/06/2023]
Abstract
The red flour beetle, Tribolium castaneum (Herbst) (Coleoptera: Tenebrionidae), is a worldwide pest of stored grains. Using "Y"-tube olfactometry we studied the response of T. castaneum to odors from simulated wheat infestations containing conspecifics, and infestations containing the lesser grain borer, Rhyzopertha dominica (F.) (Coleoptera: Bostrichidae), and the granary weevil Sitophilus granarius (L.) (Coleoptera: Curculionidae). Tribolium castaneum larvae were significantly attracted to odors from all three test species. Tribolium castaneum adults were attracted to grains infested by R. dominica and flour infested by T. castaneum but repelled from grains infested by S. granarius. Further behavioral analysis with pheromones showed that T. castaneum were significantly attracted to their aggregation pheromone, dimethyldecanal (DMD), but not to the R. dominica aggregation pheromone, a mixture of dominicalure 1 and 2. Female T. castaneum adults were attracted to ∼50-fold less DMD than larvae and 100-fold less than male adults, suggesting they are more sensitive to DMD. This study improves our understanding of T. castaneum behaviors to infested grain volatile compounds and pheromones, and may help develop new control methods for grain pest species.
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Affiliation(s)
- B J Stevenson
- CSIRO Ecosystem Sciences, Black Mountain, ACT 2601, Australia ( ; ; ; ; ; ; )
- Plant Biosecurity Cooperative Research Centre, Bruce 2617, Australia ( )
| | - L Cai
- CSIRO Ecosystem Sciences, Black Mountain, ACT 2601, Australia ( ; ; ; ; ; ; )
- Plant Biosecurity Cooperative Research Centre, Bruce 2617, Australia ( )
- School of Veterinary and Life Sciences, Murdoch University, WA, Australia ( )
| | - C Faucher
- CSIRO Ecosystem Sciences, Black Mountain, ACT 2601, Australia (; ; ; ; ; ; )
| | - M Michie
- CSIRO Ecosystem Sciences, Black Mountain, ACT 2601, Australia (; ; ; ; ; ; )
| | - A Berna
- CSIRO Ecosystem Sciences, Black Mountain, ACT 2601, Australia (; ; ; ; ; ; )
| | - Y Ren
- Plant Biosecurity Cooperative Research Centre, Bruce 2617, Australia ( )
- School of Veterinary and Life Sciences, Murdoch University, WA, Australia ( )
| | - A Anderson
- CSIRO Ecosystem Sciences, Black Mountain, ACT 2601, Australia ( ; ; ; ; ; ; )
- Plant Biosecurity Cooperative Research Centre, Bruce 2617, Australia ( )
| | - S Chyb
- CSIRO Ecosystem Sciences, Black Mountain, ACT 2601, Australia ( ; ; ; ; ; ; )
- Plant Biosecurity Cooperative Research Centre, Bruce 2617, Australia ( )
| | - W Xu
- School of Veterinary and Life Sciences, Murdoch University, WA, Australia ( )
- Corresponding author, e-mail:
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161
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Li XN, Liu AH, Tang X, Ren Y. [Urothelial carcinoma-associated 1 enhances tamoxifen resistance in breast cancer cells through competitively inhibiting miR-18a]. Beijing Da Xue Xue Bao Yi Xue Ban 2017; 49:295-302. [PMID: 28416841] [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: 06/07/2023]
Abstract
OBJECTIVE To investigate how urothelial carcinoma-associated 1 (UCA1) and miR-18a modulates acquired tamoxifen resistance and the relevant mechanisms in estrogen receptor (ER) positive cancer cells. METHODS qRT-PCR was performed to detect UCA1 and miR-18a expression in breast cancer cells. Dual luciferase assay was performed to detect the binding between miR-18a and UCA1 3'UTR. Tamoxifen sensitive MCF-7 cells were transfected with UCA1 expression vector or miR-18a inhibitors. Tamoxifen resistant LCC9 and BT474 cells were transfected with UCA1 siRNA or miR-18a mimics. CCK-8 assay was performed to detect cell viability. Soft agar assay was performed to assess cell colony formation. Flow cytometric analysis was performed to check cell cycle distribution. RESULTS UCA1 was significantly upregulated in tamoxifen resistant LCC2, LCC9, and BT474 cells than in tamoxifen sensitive MCF-7 cells. UCA1 expression was significantly upregulated in MCF-7 cells after treatment with 0.1 μmol/L tamoxifen. UCA1 overexpression enhanced cell viability of MCF-7 cells after tamoxifen treatment, while UCA1 siRNA significantly suppressed viability of LCC9 and BT474 cells after tamoxifen treatment. In MCF-7 cells, compared with vector control+tamoxifen group, the average cell colony number and colony size of the UCA1+tamoxifen group was 19.0% more and 29.0% larger respectively, while the proportions of the cells in G1 phase and in S phase were 7.3% lower and 6.7% higher respectively. In BT474 cells, compared with siRNA control+tamoxifen group, the average cell colony number and colony size of the si-UCA1+tamoxifen group were 54.0% less and 42.0% smaller respectively, while the proportions of the cells in G1 phase and in S phase were 9.0% higher and 6.2% lower respectively. UCA1 directly interacted with miR-18a and reduced its expression in ER positive breast cancer cells. Knockdown of miR-18a increased viability of MCF-7 cells after tamoxifen treatment, while miR-18a overexpression significantly reduced viability of BT474 cells after tamoxifen treatment. In MCF-7 cells, compared with miRNA inhibitor control+tamoxifen group, the average cell colony number and colony size of the miR-18a inhibitor+tamoxifen group were 15.0% more and 33.0% larger respectively, while the proportions of the cells in G1 phase and in S phase were 8.8% lower and 5.3% higher respectively. In BT474 cells, compared with miRNA control+tamoxifen group, the average cell colony number and colony size of the miR-18a mimics+tamoxifen group were 47.0% less and 25.0% smaller respectively, while the proportions of the cells in G1 phase and in S phase were 13.3% higher and 7.9% lower respectively. CONCLUSION UCA1 can increase tamoxifen resistance of ER positive breast cancer cells via competitively inhibiting of miR-18a.
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Affiliation(s)
- X N Li
- Department of Breast Surgery, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing 100006, China
| | - A H Liu
- Department of Breast Surgery, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing 100006, China
| | - X Tang
- Department of Breast Surgery, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing 100006, China
| | - Y Ren
- Department of Breast Surgery, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing 100006, China
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Mohammadpour A, Wiltshire BD, Zhang Y, Farsinezhad S, Askar AM, Kisslinger R, Ren Y, Kar P, Shankar K. 100-fold improvement in carrier drift mobilities in alkanephosphonate-passivated monocrystalline TiO 2 nanowire arrays. Nanotechnology 2017; 28:144001. [PMID: 28273048 DOI: 10.1088/1361-6528/aa628e] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Single crystal rutile titania nanowires grown by solvothermal synthesis are actively being researched for use as electron transporting scaffolds in perovskite solar cells, in low detection limit ultraviolet photodetectors, in photoelectrochemical water-splitting, and in chemiresistive and electrochemical sensing. The electron drift mobility (μ n ) in solution-grown TiO2 nanowires is very low due to a high density of deep traps, and reduces performance in optoelectronic devices. In this study, the effects of molecular passivation of the nanowire surface by octadecylphosphonic acid (ODPA), on carrier transport in TiO2 nanowire ensembles, were investigated using transient space charge limited current measurements. Infrared spectroscopy indicated the formation of a highly ordered phosphonate monolayer with a high likelihood of bidentate binding of ODPA to the rutile surface. We report the hole drift mobility (μ p ) for the first time in unpassivated solvothermal rutile nanowires to be 8.2 × 10-5 cm2 V-1 s-1 and the use of ODPA passivation resulted in μ p improving by nearly two orders of magnitude to 7.1 × 10-3 cm2 V-1 s-1. Likewise, ODPA passivation produced between a 2 and 3 order of magnitude improvement in μ n from ∼10-5-10-6 cm2 V-1 s-1 to ∼10-3 cm2 V-1 s-1. The bias dependence of the post-transit photocurrent decays in ODPA-passivated nanowires indicated that minority carriers were lost to trapping and/or monomolecular recombination for small values of bias (<5 V). Bimolecular recombination was indicated to be the dominant recombination mechanism at higher bias values.
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Affiliation(s)
- A Mohammadpour
- Department of Electrical and Computer Engineering, University of Alberta, 9211-116 St, Edmonton, AB T6G 1H9, Canada
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163
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Yang S, Liu H, Zhang JT, Liu J, Zheng H, Ren Y. Scanning Electron Microscopy Study of the Antennal Sensilla of Monema flavescens Walker (Lepidoptera: Limacodidae). Neotrop Entomol 2017; 46:175-181. [PMID: 27783364 DOI: 10.1007/s13744-016-0450-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2016] [Accepted: 10/05/2016] [Indexed: 06/06/2023]
Abstract
Monema flavescens Walker (Lepidoptera: Limacodidae) is a serious polyphagous defoliator. Using scanning electron microscopy, the external morphology of the antennal sensilla of this pest was examined for a better understanding of the mechanisms of insect-insect and insect-plant chemical communications. The antennae of M. flavescens were filiform in shape, and 11 morphological types of sensilla were found in both sexes. Six types of likely chemosensory sensilla were identified: uniporous sensilla chaetica, multiporous sensilla trichodea, and four types of multiporous sensilla basiconica. The sensilla identified as likely mechanoreceptors included two subtypes of aporous sensilla chaetica, aporous sensilla coeloconica, aporous sensilla styloconica, and Böhm's bristles, whereas the position of the antennae was monitored by Böhm's bristles.
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Affiliation(s)
- S Yang
- Agronomy College, Shanxi Agricultural Univ, Taigu, Shanxi, China
| | - H Liu
- Institute of Chemical Ecology, Shanxi Agricultural Univ, Taigu, Shanxi, 030801, China
| | - J T Zhang
- Institute of Chemical Ecology, Shanxi Agricultural Univ, Taigu, Shanxi, 030801, China.
| | - J Liu
- Institute of Chemical Ecology, Shanxi Agricultural Univ, Taigu, Shanxi, 030801, China
| | - H Zheng
- Agronomy College, Shanxi Agricultural Univ, Taigu, Shanxi, China
| | - Y Ren
- Shanxi Branch Valley Biological Pesticide Co., Ltd, Taigu, Shanxi, China
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164
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Ren Y, Li S, Wu Z, Zhou C, Zhang D, Chen X. The Influences of Bacillus subtilis on the Virulence of Aeromonas hydrophila and Expression of luxS Gene of Both Bacteria Under Co-cultivation. Curr Microbiol 2017; 74:718-724. [DOI: 10.1007/s00284-017-1236-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2016] [Accepted: 03/16/2017] [Indexed: 10/19/2022]
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165
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Yu L, Di Y, Xin L, Ren Y, Liu X, Sun X, Zhang W, Yao Z, Yang J. SND1 acts as a novel gene transcription activator recognizing the conserved Motif domains of Smad promoters, inducing TGFβ1 response and breast cancer metastasis. Oncogene 2017; 36:3903-3914. [DOI: 10.1038/onc.2017.30] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2016] [Revised: 12/29/2016] [Accepted: 12/30/2016] [Indexed: 02/06/2023]
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166
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Ren Y, Singh RP, Basnet BR, Lan CX, Huerta-Espino J, Lagudah ES, Ponce-Molina LJ. Identification and Mapping of Adult Plant Resistance Loci to Leaf Rust and Stripe Rust in Common Wheat Cultivar Kundan. Plant Dis 2017; 101:456-463. [PMID: 30677352 DOI: 10.1094/pdis-06-16-0890-re] [Citation(s) in RCA: 6] [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: 05/11/2023]
Abstract
Leaf rust (LR) and stripe rust (YR) are important diseases of wheat worldwide. We used 148 recombinant inbred lines (RIL) from the cross of Avocet × Kundan for determining and mapping the genetic basis of adult plant resistance (APR) loci. The population was phenotyped LR and YR for three seasons in field trials conducted in Mexico and genotyped with the diversity arrays technology sequencing (DArT-Seq) and simple sequence repeat markers. The final genetic map was constructed using 2,937 polymorphic markers with an average distance of 1.29 centimorgans between markers. Inclusive composite interval mapping identified two co-located APR quantitative trait loci (QTL) for LR and YR, two LR QTL, and three YR QTL. The co-located resistance QTL on chromosome 1BL corresponded to the pleiotropic APR gene Lr46/Yr29. QLr.cim-2BL, QYr.cim-2AL, and QYr.cim-5AS could be identified as new resistance loci in this population. Lr46/Yr29 contributed 49.5 to 65.1 and 49.2 to 66.1% of LR and YR variations, respectively. The additive interaction between detected QTL showed that LR severities for RIL combining four QTL ranged between 5.3 and 25.8%, whereas the lowest YR severities were for RIL carrying QTL on chromosomes 1BL + 2AL + 6AL. The high-density DArT-Seq markers across chromosomes can be used in fine mapping of the targeted loci and development SNP markers.
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Affiliation(s)
- Y Ren
- Mianyang Institute of Agricultural Science/Mianyang Branch of National Wheat Improvement Center, Mianyang 621023, Sichuan, China
| | - R P Singh
- International Maize and Wheat Improvement Center (CIMMYT), 06600 México D.F., Mexico
| | - B R Basnet
- International Maize and Wheat Improvement Center (CIMMYT), 06600 México D.F., Mexico
| | - C X Lan
- International Maize and Wheat Improvement Center (CIMMYT), 06600 México D.F., Mexico
| | - J Huerta-Espino
- Campo Experimental Valle de México INIFAP, 56230 Chapingo, Edo. de México, Mexico
| | - E S Lagudah
- CSIRO Agriculture, Canberra, ACT 2601, Australia
| | - L J Ponce-Molina
- National Institute of Agricultural and Livestock Researches (INIAP-Ecuador), Santa Catalina Experimental Station, Quito, Ecuador
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167
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Gao YL, Gao XH, Qi RQ, Xu JL, Huo W, Tang J, Ren Y, Zheng S, Hong YX, Song B, Chen HD. Clinical evaluation of local hyperthermia at 44 °C for molluscum contagiosum: pilot study with 21 patients. Br J Dermatol 2017; 176:809-812. [PMID: 27377758 DOI: 10.1111/bjd.14849] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Y-L Gao
- Department of Dermatology, No. 1 Hospital of China Medical University, 155 N. Nanjing Street, Shenyang, 110001, China
| | - X-H Gao
- Department of Dermatology, No. 1 Hospital of China Medical University, 155 N. Nanjing Street, Shenyang, 110001, China
| | - R-Q Qi
- Department of Dermatology, No. 1 Hospital of China Medical University, 155 N. Nanjing Street, Shenyang, 110001, China
| | - J-L Xu
- Department of Dermatology, Nanshan District People's Hospital Affiliated to Guangdong Medical College, Shenzhen, 518052, China
| | - W Huo
- Department of Dermatology, No. 1 Hospital of China Medical University, 155 N. Nanjing Street, Shenyang, 110001, China
| | - J Tang
- Department of Dermatology, No. 1 Hospital of China Medical University, 155 N. Nanjing Street, Shenyang, 110001, China
| | - Y Ren
- Department of Dermatology, No. 1 Hospital of China Medical University, 155 N. Nanjing Street, Shenyang, 110001, China
| | - S Zheng
- Department of Dermatology, No. 1 Hospital of China Medical University, 155 N. Nanjing Street, Shenyang, 110001, China
| | - Y-X Hong
- Department of Dermatology, No. 1 Hospital of China Medical University, 155 N. Nanjing Street, Shenyang, 110001, China
| | - B Song
- Department of Dermatology, No. 1 Hospital of China Medical University, 155 N. Nanjing Street, Shenyang, 110001, China
- Cardiff Institute of Tissue Engineering and Repair, Cardiff University, Cardiff, CF14 4XY, U.K
| | - H-D Chen
- Department of Dermatology, No. 1 Hospital of China Medical University, 155 N. Nanjing Street, Shenyang, 110001, China
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168
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Abstract
Purinergic signaling is involved in pain generation and modulation in the nociceptive sensory nervous system. Adenosine triphosphate (ATP) induces pain via activation of ionotropic P2X receptors while adenosine mediates analgesia via activation of metabotropic P1 receptors. These purinergic signaling are determined by ecto-nucleotidases that control ATP degradation and adenosine generation. Using enzymatic histochemistry, we detected ecto-AMPase activity in dental pulp, trigeminal ganglia (TG) neurons, and their nerve fibers. Using immunofluorescence staining, we confirmed the expression of ecto-5'-nucleotidase (CD73) in trigeminal nociceptive neurons and their axonal fibers, including the nociceptive nerve fibers projecting into the brainstem. In addition, we detected the existence of CD73 and ecto-AMPase activity in the nociceptive lamina of the trigeminal subnucleus caudalis (TSNC) in the brainstem. Furthermore, we demonstrated that incubation with specific anti-CD73 serum significantly reduced the ecto-AMPase activity in the nociceptive lamina in the brainstem. Our results indicate that CD73 might participate in nociceptive modulation by affecting extracellular adenosine generation in the trigeminal nociceptive pathway. Disruption of TG neuronal ecto-nucleotidase expression and axonal terminal localization under certain circumstances such as chronic inflammation, oxidant stress, local constriction, and injury in trigeminal nerves may contribute to the pathogenesis of orofacial neuropathic pain.
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Affiliation(s)
- X Liu
- 1 Department of Dentistry, Eastman Institute for Oral Health, University of Rochester School of Medicine and Dentistry, Rochester, NY, USA.,2 Department of Pharmacology and Physiology, University of Rochester School of Medicine and Dentistry, Rochester, NY, USA
| | - L Ma
- 1 Department of Dentistry, Eastman Institute for Oral Health, University of Rochester School of Medicine and Dentistry, Rochester, NY, USA.,3 Department of Dentistry, School of Stomatology, Zhengzhou University, Zhengzhou, China
| | - S Zhang
- 1 Department of Dentistry, Eastman Institute for Oral Health, University of Rochester School of Medicine and Dentistry, Rochester, NY, USA
| | - Y Ren
- 1 Department of Dentistry, Eastman Institute for Oral Health, University of Rochester School of Medicine and Dentistry, Rochester, NY, USA
| | - R T Dirksen
- 2 Department of Pharmacology and Physiology, University of Rochester School of Medicine and Dentistry, Rochester, NY, USA
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169
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Tang X, Gong W, Deng Z, Zhou J, Ren Y, Zhang Q, Chen Z, Jiang B. Feasibility and safety of peroral endoscopic myotomy for achalasia after failed endoscopic interventions. Dis Esophagus 2017; 30:1-6. [PMID: 27878898 DOI: 10.1111/dote.12457] [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] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
With advances in natural orifice transluminal endoscopic surgery, peroral endoscopic myotomy (POEM) has become a novel treatment for esophageal achalasia. In this study, we investigated the feasibility and safety of POEM in patients with achalasia after failed endoscopic interventions. Data on all patients undergoing POEM treatment of achalasia were collected prospectively. We enrolled 61 patients who underwent POEM for achalasia between July 2011 and January 2014. The preoperative intervention group included patients who had undergone botulinum toxin injection or pneumatic balloon dilation before POEM. The preoperative, operative, and short-term outcome data between the groups were compared. Among preoperative intervention group, 22 patients received endoscopic therapy before being referred for operation (18 dilation only, 2 botulinum toxin only, and 2 both treatments). Procedure time in the preoperative intervention group was similar to the nonpreoperative intervention group (60.8 ± 30.9 vs. 62.0 ± 21.0 minutes, P = 0.863). Both groups demonstrated significant improvement in Eckardt scores and manometric outcomes at 1-year follow-up. There were no significant differences in pretreatment and posttreatment D-values of symptom scores and lower esophageal sphincter pressures between groups (6.2 ± 2.2 vs. 6.1 ± 1.8, P = 0.840; 27.9 ± 17.6 vs. 24.9 ± 15.2; P = 0.569). There was also no significant difference in the incidence of intraoperative complications (P = 0.958) and gastroesophageal reflux rate (23.5% vs. 20.0%, P = 0.771) between the two groups. Our study demonstrated that POEM is safe and effective, even for treating achalasia in the setting of failed endoscopic interventions.
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Affiliation(s)
- X Tang
- Department of Gastroenterology, Guangdong Provincial key laboratory of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, China.,Departmemt of Gastroenterology, Beijing Tsinghua Changgung Hospital Medical Center, Tsinghua University, Beijing, China
| | - W Gong
- Department of Gastroenterology, Guangdong Provincial key laboratory of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Z Deng
- Department of Gastroenterology, Guangdong Provincial key laboratory of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - J Zhou
- Department of Gastroenterology, Guangdong Provincial key laboratory of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, China.,Departmemt of Gastroenterology, Beijing Tsinghua Changgung Hospital Medical Center, Tsinghua University, Beijing, China
| | - Y Ren
- Departmemt of Gastroenterology, Beijing Tsinghua Changgung Hospital Medical Center, Tsinghua University, Beijing, China
| | - Q Zhang
- Department of Gastroenterology, Guangdong Provincial key laboratory of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Z Chen
- Department of Gastroenterology, Guangdong Provincial key laboratory of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - B Jiang
- Department of Gastroenterology, Guangdong Provincial key laboratory of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, China.,Departmemt of Gastroenterology, Beijing Tsinghua Changgung Hospital Medical Center, Tsinghua University, Beijing, China
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170
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Abstract
Mutations in bone morphogenetic protein 1 (BMP1) in humans or deletion of BMP1 and related protease tolloid like 1 (TLL1) in mice lead to osteogenesis imperfecta (OI). Here, we show progressive periodontal defects in mice in which both BMP1 and TLL1 have been conditionally ablated, including malformed periodontal ligament (PDL) (recently shown to play key roles in normal alveolar bone formation), significant loss in alveolar bone mass ( P < 0.01), and a sharp reduction in cellular cementum. Molecular mechanism studies revealed a dramatic increase in the uncleaved precursor of type I collagen (procollagen I) and a reduction in dentin matrix protein 1 (DMP1), which is partially responsible for defects in extracellular matrix (ECM) formation and mineralization. We also showed a marked increase in the expression of matrix metallopeptidase 13 (MMP13) and tartrate-resistant acid phosphatase (TRAP), leading to an acceleration in periodontal breakdown. Finally, we demonstrated that systemic application of antibiotics significantly improved the alveolar bone and PDL damage of the knockdown phenotype, which are thus shown to be partially secondary to pathogen-induced inflammation. Together, identification of the novel roles of BMP1 and TLL1 in maintaining homeostasis of periodontal formation, partly via biosynthetic processing of procollagen I and DMP1, provides novel insights into key contributions of the extracellular matrix environment to periodontal homeostasis and contributes toward understanding of the pathology of periodontitis.
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Affiliation(s)
- J Wang
- 1 Biomedical Sciences, Texas A&M College of Dentistry, Dallas, TX, USA.,2 State Key Laboratory of Oral Diseases, Department of Periodontics, West China Hospital of Stomatology, Sichuan University, China
| | - D Massoudi
- 3 Department of Cell and Regenerative Biology, School of Medicine and Public Health, University of Wisconsin, Madison, WI, USA
| | - Y Ren
- 1 Biomedical Sciences, Texas A&M College of Dentistry, Dallas, TX, USA
| | - A M Muir
- 3 Department of Cell and Regenerative Biology, School of Medicine and Public Health, University of Wisconsin, Madison, WI, USA
| | - S E Harris
- 4 Department of Periodontics, UT Health Science Center School of Dentistry, San Antonio, TX, USA
| | - D S Greenspan
- 3 Department of Cell and Regenerative Biology, School of Medicine and Public Health, University of Wisconsin, Madison, WI, USA
| | - J Q Feng
- 1 Biomedical Sciences, Texas A&M College of Dentistry, Dallas, TX, USA
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171
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Butt AA, Ren Y, Marks K, Shaikh OS, Sherman KE. Do directly acting antiviral agents for HCV increase the risk of hepatic decompensation and decline in renal function? Results from ERCHIVES. Aliment Pharmacol Ther 2017; 45:150-159. [PMID: 27813162 DOI: 10.1111/apt.13837] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/05/2016] [Revised: 09/19/2016] [Accepted: 10/03/2016] [Indexed: 12/13/2022]
Abstract
BACKGROUND Directly acting antiviral agents (DAA) have been associated with hepatic decompensation, especially in patients with pre-treatment cirrhosis, but this risk is not well defined. AIM To determine the incidence of hepatic decompensation, liver transplantation, death and worsening renal function in patients treated with a Paritaprevir/ritonavir, Ombitasvir, Dasabuvir (PrOD), sofosbuvir/simeprevir or sofosbuvir/ledipasvir regimen. METHODS We followed ERCHIVES participants treated with the above regimens for up to 12 weeks post-treatment. We excluded those with HIV, HBsAg+ and pre-existing diagnosis of hepatic decompensation and hepatocellular carcinoma. RESULTS Of 3728 persons on PrOD, 1578 on sofosbuvir/simeprevir and 10 440 on sofosbuvir/ledipasvir, incidence rates (95% CI) of hepatic decompensation/1000 patient-years were 10.6 (5.89-17.36) for the PrOD, 32.4 (20.74-48.16) for the sofosbuvir/simeprevir and 13.0 (9.74-17.10) for the sofosbuvir/ledipasvir. Among those with baseline cirrhosis, these rates were 36.9 (19.1-64.5), 61.8 (38.2-94.5) and 41.1 (29.9-55.2) respectively, while among those without cirrhosis at baseline, these rates were 2.7 (0.6-8.0), 7.5 (1.5-21.8) and 2.7 (1.2-5.4). Advanced fibrosis was associated with increased risk of hepatic decompensation in all groups [HR (95% CI) per 0.5 unit increase in FIB-4 score: PrOD 1.11 (1.07-1.16); sofosbuvir/simeprevir 1.03 (1.01-1.05); sofosbuvir/ledipasvir 1.02 (1.01-1.03)]. There were no deaths. Proportion of persons with eGFR decrease >30 ml/min/1.73 m2 was higher among the PrOD group, but presence of cirrhosis did not appear to affect this. CONCLUSIONS The incidence of hepatic decompensation in persons treated with PrOD, up to 12 weeks after completion of treatment, was comparable to those treated with sofosbuvir/ledipasvir regimen, and was lower than among those treated with a sofosbuvir/simeprevir regimen. Such risk was predominantly observed in those with pre-treatment cirrhosis.
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Affiliation(s)
- A A Butt
- VA Pittsburgh Healthcare System, Pittsburgh, PA, USA.,Weill Cornell Medical College, Doha, Qatar.,Weill Cornell Medical College, New York, NY, USA.,Hamad Healthcare Quality Institute, Hamad Medical Corporation, Doha, Qatar
| | - Y Ren
- VA Pittsburgh Healthcare System, Pittsburgh, PA, USA
| | - K Marks
- Hamad Healthcare Quality Institute, Hamad Medical Corporation, Doha, Qatar
| | - O S Shaikh
- VA Pittsburgh Healthcare System, Pittsburgh, PA, USA.,University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - K E Sherman
- University of Cincinnati, Cincinnati, OH, USA
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172
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Ren Y, Zhou BQ, Xu Y, Fu CC, Shen HJ, Ding ZX, Wu DP. [The clinical features of patients with lymphoplasmacytic diseases harboring MyD88 L265P mutation]. Zhonghua Xue Ye Xue Za Zhi 2016; 37:1054-1059. [PMID: 28088969 PMCID: PMC7348489 DOI: 10.3760/cma.j.issn.0253-2727.2016.12.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/18/2016] [Indexed: 12/03/2022]
Abstract
Objective: To explore the clinical features of lymphoplasmacytic diseases with MyD88 L265P mutation. Methods: To analyze the distribution of MYD88 L265P mutation in patients with lymphoplasmacytic diseases by using of ARMS PCR-CE. Results: There were 25(30.9%) MyD88 L265P mutated patients in 81 patients. The mutation was frequently observed in 14 patients with WM (77.8%, 14/18), 2 patients with lymphoplasmacytic lymphoma (66.7%, 2/3), 1 acute lymphocytic leukemia patient (50.0%, 1/2), 3 multiple myeloma patients (30.0%, 3/10), 1 patient with monoclonal gammopathy of undetermined significance (25%, 1/4), 3 patients with chronic lymphocytic leukemia (13.0%, 3/23) and 1 lymphoma patient (4.8%, 1/21). 20 (80%, 20/25) patients were identified with IgM subtype. Compared with wild-type group of 56 cases, mutated patients were older (median age: 67 years vs 55 years, P< 0.001), with lower WBC count (median count: 5.23 × 109/L vs 10.80 × 109/L, P=0.001), lower HGB level (median count: 85 g/L vs 119 g/L, P<0.001). Conclusion: MyD88 L265P mutation was mainly observed in patients with IgM subtype lymphoplasmacytic diseases, and Waldenstrom' s macroglobulinemia was the most common disease. Compared with the wild-type group, patients with MyD88 L265P mutation were older and had lower WBC count, lower level of HGB. However, further studies were needed to test the prognostic value of MyD88 L265P mutation.
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Affiliation(s)
- Y Ren
- First Affiliated Hospital of Soochow University, Jiangsu Institute of Hematology, Key Laboratory of Thrombosis and Hemostasis under Ministry of Health, Collaborative Innovation Center of Hematology, Institute of Blood and Marrow Transplantation, Soochow University, Suzhou 215006, China
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173
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Wu M, Wang J, Tang W, Zhan X, Li Y, Peng Y, Huang X, Bai Y, Zhao J, Li A, Chen C, Chen Y, Peng H, Ren Y, Li G, Liu S, Wang J. FOXK1 interaction with FHL2 promotes proliferation, invasion and metastasis in colorectal cancer. Oncogenesis 2016; 5:e271. [PMID: 27892920 PMCID: PMC5141290 DOI: 10.1038/oncsis.2016.68] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2016] [Revised: 08/25/2016] [Accepted: 09/29/2016] [Indexed: 12/31/2022] Open
Abstract
The transcriptional factor Forkhead box k1 (FOXK1) is a member of the FOX family. The abnormal expression of FOXK1 may have an important role in tumour development. Our previous studies showed that four-and-a-half LIM protein 2 (FHL2) is a critical inducer of the epithelial-to-mesenchymal transition (EMT) and invasion. However, the molecular mechanism by which FOXK1 synergizes with FHL2 tumour proliferation, EMT and metastasis is not well defined. We evaluated that messenger RNA (mRNA) and protein expression levels by quantitative RT–PCR, western blot, immunofluorescence and immunohistochemistry (IHC) assays. The migration and invasive abilities of colorectal cancer (CRC) cells were evaluated using short hairpin RNA (shRNA)-mediated inhibition in vitro and in vivo. We showed that FOXK1 expression was upregulated in CRC compared with matched normal tissues. FOXK1 physically interacts with FHL2 in CRC. Moreover, higher expression levels of the two proteins were significantly associated with differentiation, lymph node metastasis, AJCC stage and poorer prognosis. Furthermore, the overexpression of FOXK1 in CRC cells is associated with EMT, invasion and metastasis. However, the siRNA-mediated repression of FHL2 in FOXK1-overexpressing cells reversed EMT and both the proliferative and metastatic phenotypes in vitro and in vivo. These data identified that the co-expression of FOXK1 and FHL2 enhances cell proliferation and metastasis through the induction of EMT. Thus, FOXK1 and FHL2 may serve as putative targets in the combined therapy of CRC.
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Affiliation(s)
- M Wu
- Guangdong Provincial Key Laboratory of Gastroenterology, Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - J Wang
- Guangdong Provincial Key Laboratory of Gastroenterology, Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - W Tang
- Guangdong Provincial Key Laboratory of Gastroenterology, Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - X Zhan
- Center for Reproductive Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Y Li
- Guangdong Provincial Key Laboratory of Gastroenterology, Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Y Peng
- Guangdong Provincial Key Laboratory of Gastroenterology, Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - X Huang
- Guangdong Provincial Key Laboratory of Gastroenterology, Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Y Bai
- Guangdong Provincial Key Laboratory of Gastroenterology, Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - J Zhao
- Department of Rheumatism, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - A Li
- Guangdong Provincial Key Laboratory of Gastroenterology, Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - C Chen
- Guangdong Provincial Key Laboratory of Gastroenterology, Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Y Chen
- Guangdong Provincial Key Laboratory of Gastroenterology, Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - H Peng
- Department of Pathogen Biology, School of Public Health and Tropical Medicine, Southern Medical University, Guangzhou, China
| | - Y Ren
- Guangdong Provincial Key Laboratory of Gastroenterology, Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - G Li
- Department of General Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - S Liu
- Guangdong Provincial Key Laboratory of Gastroenterology, Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - J Wang
- Guangdong Provincial Key Laboratory of Gastroenterology, Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, China
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174
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Wang X, Zhang FX, Wang ZM, Wang Q, Wang HF, Ren Y, Tai DP, Liang H, Liu DJ. Histone H3K9 acetylation influences growth characteristics of goat adipose-derived stem cells in vitro. Genet Mol Res 2016; 15:gmr-15-gmr15048954. [PMID: 27819724 DOI: 10.4238/gmr15048954] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Adipose-derived stem cells (ADSCs) show nearly unlimited potential in medical and animal science. Currently, understanding of the biological mechanisms regulating ADSC growth in vitro remains very limited. Histone acetylation, an epigenetic modification, plays a key role in maintaining stem cell properties. To further study its effect on ADSC growth characteristics in vitro, we treated goat ADSCs with the histone deacetylase inhibitors trichostatin A (TSA) and vorinostat (SAHA). This inhibited SIRT1 expression and increased histone H3K9 acetylation, leading to decreased cell viability, cell cycle arrest, and apoptosis. Quantitative real-time polymerase chain reaction revealed that H3K9 hyperacetylation stimulated transcription of NANOG, OCT4, SOX2, and TERT, but inhibited that of PCNA, P53, and BAX. Western blotting indicated that TSA and SAHA increased protein expression of NANOG, reduced that of SOX2, TERT, PCNA, P53, and BAX, and did not change that of OCT4. These findings provide new experimental evidence contributing to our understanding of the mechanisms underlying ADSC growth characteristics in vitro.
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Affiliation(s)
- X Wang
- Key Laboratory of Mammalian Reproductive Biology and Biotechnology Ministry of Education, Inner Mongolia University, Hohhot, China
| | - F X Zhang
- Key Laboratory of Mammalian Reproductive Biology and Biotechnology Ministry of Education, Inner Mongolia University, Hohhot, China
| | - Z M Wang
- Key Laboratory of Mammalian Reproductive Biology and Biotechnology Ministry of Education, Inner Mongolia University, Hohhot, China
| | - Q Wang
- Key Laboratory of Mammalian Reproductive Biology and Biotechnology Ministry of Education, Inner Mongolia University, Hohhot, China
| | - H F Wang
- Key Laboratory of Mammalian Reproductive Biology and Biotechnology Ministry of Education, Inner Mongolia University, Hohhot, China
| | - Y Ren
- Key Laboratory of Mammalian Reproductive Biology and Biotechnology Ministry of Education, Inner Mongolia University, Hohhot, China
| | - D P Tai
- Key Laboratory of Mammalian Reproductive Biology and Biotechnology Ministry of Education, Inner Mongolia University, Hohhot, China
| | - H Liang
- Key Laboratory of Mammalian Reproductive Biology and Biotechnology Ministry of Education, Inner Mongolia University, Hohhot, China
| | - D J Liu
- Key Laboratory of Mammalian Reproductive Biology and Biotechnology Ministry of Education, Inner Mongolia University, Hohhot, China
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175
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Scott ER, Barchfeld R, Riemenschneider P, Domier CW, Muscatello CM, Sohrabi M, Kaita R, Ren Y, Luhmann NC. Far-infrared tangential interferometer/polarimeter design and installation for NSTX-U. Rev Sci Instrum 2016; 87:11E114. [PMID: 27910494 DOI: 10.1063/1.4960415] [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] [Indexed: 06/06/2023]
Abstract
The Far-infrared Tangential Interferometer/Polarimeter (FIReTIP) system has been refurbished and is being reinstalled on the National Spherical Torus Experiment-Upgrade (NSTX-U) to supply real-time line-integrated core electron density measurements for use in the NSTX-U plasma control system (PCS) to facilitate real-time density feedback control of the NSTX-U plasma. Inclusion of a visible light heterodyne interferometer in the FIReTIP system allows for real-time vibration compensation due to movement of an internally mounted retroreflector and the FIReTIP front-end optics. Real-time signal correction is achieved through use of a National Instruments CompactRIO field-programmable gate array.
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Affiliation(s)
- E R Scott
- Department of Mechanical and Aerospace Engineering, University of California, Davis, California 95616, USA
| | - R Barchfeld
- Department of Applied Science, University of California, Davis, California 95616, USA
| | - P Riemenschneider
- Department of Electrical and Computer Engineering, University of California, Davis, California 95616, USA
| | - C W Domier
- Department of Electrical and Computer Engineering, University of California, Davis, California 95616, USA
| | | | - M Sohrabi
- Department of Electrical and Computer Engineering, University of California, Davis, California 95616, USA
| | - R Kaita
- Princeton Plasma Physics Laboratory, Princeton, New Jersey 08540, USA
| | - Y Ren
- Princeton Plasma Physics Laboratory, Princeton, New Jersey 08540, USA
| | - N C Luhmann
- Department of Electrical and Computer Engineering, University of California, Davis, California 95616, USA
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176
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Lu ZQ, Ren Y, Zhou XH, Yu XF, Huang J, Yu DY, Wang XX, Wang YZ. Maternal dietary linoleic acid supplementation promotes muscle fibre type transformation in suckling piglets. J Anim Physiol Anim Nutr (Berl) 2016; 101:1130-1136. [PMID: 27761944 DOI: 10.1111/jpn.12626] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2016] [Accepted: 09/24/2016] [Indexed: 12/27/2022]
Abstract
As meat quality is basically dependent on muscle fibre characteristics, it is important to know how muscle fibres are regulated and transformed. This study aimed to investigate the effect of maternal dietary supplementation on muscle fibre types using 3% saturated fatty acid (palmitic acid, PA) or 3% unsaturated fatty acid (linoleic acid, LA) from 80 days of gestation to the weaning of offspring (25 days post-natal). The results indicated that higher mRNA levels of MyHCI type genes were found in the soleus muscles of piglets that suckled from LA-supplemented sows than from PA-supplemented sows. In addition, LA treatment increased the gene expression of the type I muscle fibre marker troponin I (p < 0.01), suggesting that LA promoted muscle fibre type transformation to type I fibres. Moreover, PGC-1α (p < 0.01) and MEF2c (p < 0.05) mRNA levels were higher in the piglets from the LA treatment group than in those from the PA treatment group. Furthermore, LA supplementation also significantly increased AMP-activated protein kinase (AMPK) mRNA levels (p < 0.05), which is an upstream regulator of PGC-1α. Collectively, these findings demonstrated that maternal dietary LA supplementation promoted muscle fibre transformation to type I fibre and that this process may be mediated through an AMPK-dependent pathway.
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Affiliation(s)
- Z Q Lu
- Key Laboratory of Molecular Animal Nutrition, Institute of Feed Science, Zhejiang University, Hangzhou, China
| | - Y Ren
- Key Laboratory of Molecular Animal Nutrition, Institute of Feed Science, Zhejiang University, Hangzhou, China
| | - X H Zhou
- Key Laboratory of Molecular Animal Nutrition, Institute of Feed Science, Zhejiang University, Hangzhou, China
| | - X F Yu
- Key Laboratory of Molecular Animal Nutrition, Institute of Feed Science, Zhejiang University, Hangzhou, China
| | - J Huang
- Key Laboratory of Molecular Animal Nutrition, Institute of Feed Science, Zhejiang University, Hangzhou, China
| | - D Y Yu
- Key Laboratory of Molecular Animal Nutrition, Institute of Feed Science, Zhejiang University, Hangzhou, China
| | - X X Wang
- Key Laboratory of Molecular Animal Nutrition, Institute of Feed Science, Zhejiang University, Hangzhou, China
| | - Y Z Wang
- Key Laboratory of Molecular Animal Nutrition, Institute of Feed Science, Zhejiang University, Hangzhou, China
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177
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Jin Q, Ren Y, Wang M, Suraneni PK, Li D, Crispino JD, Fan J, Huang Z. Novel function of FAXDC2 in megakaryopoiesis. Blood Cancer J 2016; 6:e478. [PMID: 27689744 PMCID: PMC5056977 DOI: 10.1038/bcj.2016.87] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2016] [Revised: 08/19/2016] [Accepted: 08/24/2016] [Indexed: 02/04/2023] Open
Abstract
FAXDC2 (fatty acid hydroxylase domain containing 2) is a member of the fatty acid hydroxylase superfamily. Given the important role of fatty acids in megakaryocytes, we have studied the role of this gene in the development of this lineage. Here we show that the expression of FAXDC2 is constantly elevated during megakaryocyte maturation. In contrast, FAXDC2 is significantly downregulated in acute myeloid leukemia and acute megakaryoblastic leukemia. Moreover, FAXDC2 overexpression promotes the differentiation of megakaryocytic cell lines and primary cells, whereas its knockdown disrupts their maturation. Mechanism study shows that FAXDC2 overexpression enhances extracellular signal-regulated kinase (ERK) signaling and increases RUNX1 (Runt-related transcription factor 1) expression. FAXDC2 also restores megakaryocytic differentiation in cells exposed to an ERK inhibitor or those expressing a dominant negative form of RUNX1. Finally, FAXDC2 overexpression leads to an increase in sphingolipid GM3 synthase, suggesting a potential role of FAXDC2 in lipid metabolism that increases ERK signaling and facilitates megakaryocyte differentiation. Together, these results show that FAXDC2 plays a novel role in development of megakaryocytes and its dysregulation may contribute to abnormal hematopoietic cell development in leukemia.
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Affiliation(s)
- Q Jin
- College of Life Sciences, Wuhan University, Wuhan, Hubei, People's Republic of China.,Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Y Ren
- College of Life Sciences, Wuhan University, Wuhan, Hubei, People's Republic of China
| | - M Wang
- College of Life Sciences, Wuhan University, Wuhan, Hubei, People's Republic of China
| | - P K Suraneni
- Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - D Li
- Department of Hematology, Tongji Hospital, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
| | - J D Crispino
- Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - J Fan
- Department of Pediatrics, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, People's Republic of China
| | - Z Huang
- College of Life Sciences, Wuhan University, Wuhan, Hubei, People's Republic of China
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178
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Ren Y, Khan FA, Pandupuspitasari NS, Li S, Hao X, Chen X, Xiong J, Yang L, Fan M, Zhang S. Highly Pathogenic Porcine Reproductive and Respiratory Syndrome Virus Modulates Interferon-β Expression Mainly Through Attenuating Interferon-Regulatory Factor 3 Phosphorylation. DNA Cell Biol 2016; 35:489-97. [PMID: 27314873 DOI: 10.1089/dna.2016.3283] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Highly pathogenic porcine reproductive and respiratory syndrome virus (HP-PRRSV) that emerged from classic PRRSV causes more severe damage to the swine industry. The earlier reports indicating inhibition of interferon-β (IFN-β) expression by PRRSV through total blockage of IFN-regulatory factor 3 (IRF3) nuclear translocation made us investigate the mechanism of IFN-β expression in HP-PRRSV infection. For this purpose, the IRF3 nuclear translocation in the control group [Poly (I:C)] and test group [Poly (I:C)+HP-PRRSV] was detected by immunofluorescence, and the results showed that IRF3 nuclear translocation in cells with PRRSV was weaker than cells without PRRSV, which was different from the previous study. In addition, the IFN-β mRNA and protein expression was observed to be inhibited by HP-PRRSV along with decreased IRF3 mRNA and total protein, and IRF3 nuclear translocation of test group was suppressed in MARC-145 and porcine alveolar macrophage cells in comparison with the control group. The quantity of phosphorylated IRF3 protein was also reduced after HP-PRRSV infection. However, CREB-binding protein (CBP) expression did not change between the control and test group. These results indicate that the inhibition of IFN-β expression is mainly due to the quantitative change in the amount of phosphorylated IRF3 in the cytoplasm, but not dependent on the complete blockage of IRF3 nuclear translocation or the restraining of CBP expression in the nucleus by HP-PRRSV.
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Affiliation(s)
- Yuwei Ren
- 1 Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education, Huazhong Agriculture University , Wuhan, China
| | - Faheem Ahmed Khan
- 1 Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education, Huazhong Agriculture University , Wuhan, China
| | - Nuruliarizki Shinta Pandupuspitasari
- 1 Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education, Huazhong Agriculture University , Wuhan, China
| | - Shuaifeng Li
- 1 Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education, Huazhong Agriculture University , Wuhan, China
| | - Xingjie Hao
- 1 Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education, Huazhong Agriculture University , Wuhan, China
| | - Xing Chen
- 1 Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education, Huazhong Agriculture University , Wuhan, China
| | - Jiajun Xiong
- 1 Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education, Huazhong Agriculture University , Wuhan, China
| | - Liguo Yang
- 1 Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education, Huazhong Agriculture University , Wuhan, China
| | - Mingxia Fan
- 2 Key Laboratory of Animal Center, Renmin Hospital of Wuhan University , Wuhan, China
| | - Shujun Zhang
- 1 Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education, Huazhong Agriculture University , Wuhan, China
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179
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Ren Y, Chai H, An M, Gao L, Zhou G. Two 3D zinc-bpe frameworks constructed from 2-carboxyl/sulfo-terephthalate: Crystal structures and luminescent properties. RUSS J COORD CHEM+ 2016. [DOI: 10.1134/s1070328416050067] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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180
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Su R, Dong L, Zou D, Zhao H, Ren Y, Li F, Yi P, Li L, Zhu Y, Ma Y, Wang J, Wang F, Yu J. microRNA-23a, -27a and -24 synergistically regulate JAK1/Stat3 cascade and serve as novel therapeutic targets in human acute erythroid leukemia. Oncogene 2016; 35:6001-6014. [DOI: 10.1038/onc.2016.127] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2015] [Revised: 03/05/2016] [Accepted: 03/07/2016] [Indexed: 01/01/2023]
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181
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Tang X, Ren Y, Huang S, Jiang B, Gong W. EDUCATION AND IMAGING. Gastrointestinal: Endoscopic submucosal tunnel dissection of a giant cardiac leiomyoma. J Gastroenterol Hepatol 2016; 31:706. [PMID: 26512937 DOI: 10.1111/jgh.13215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/23/2015] [Accepted: 10/18/2015] [Indexed: 12/09/2022]
Affiliation(s)
- X Tang
- Guangdong Provincial Key Laboratory of Gastroenterology, Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, China.,Departmemt of Gastroenterology, Beijing Tsinghua Changgung Hospital Medical Center, Tsinghua University, Beijing, China
| | - Y Ren
- Departmemt of Gastroenterology, Beijing Tsinghua Changgung Hospital Medical Center, Tsinghua University, Beijing, China
| | - S Huang
- Guangdong Provincial Key Laboratory of Gastroenterology, Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - B Jiang
- Guangdong Provincial Key Laboratory of Gastroenterology, Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, China.,Departmemt of Gastroenterology, Beijing Tsinghua Changgung Hospital Medical Center, Tsinghua University, Beijing, China
| | - W Gong
- Guangdong Provincial Key Laboratory of Gastroenterology, Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, China
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182
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Zheng X, Ren Y, Ge W. 104P: Stereotactic body radiation therapy in early-stage non-small cell lung cancer in elderly patients: Safety and efficacy. J Thorac Oncol 2016. [DOI: 10.1016/s1556-0864(16)30217-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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183
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Liu Z, Ren Y, Mirando AJ, Wang C, Zuscik MJ, O'Keefe RJ, Hilton MJ. Notch signaling in postnatal joint chondrocytes, but not subchondral osteoblasts, is required for articular cartilage and joint maintenance. Osteoarthritis Cartilage 2016; 24:740-51. [PMID: 26522700 PMCID: PMC4799757 DOI: 10.1016/j.joca.2015.10.015] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/29/2015] [Revised: 10/15/2015] [Accepted: 10/22/2015] [Indexed: 02/02/2023]
Abstract
OBJECTIVE Notch signaling has been identified as a critical regulator in cartilage development and joint maintenance, and loss of Notch signaling in all joint tissues results in an early and progressive osteoarthritis (OA)-like pathology. This study investigated the targeted cell population within the knee joint in which Notch signaling is required for normal cartilage and joint integrity. METHODS Two loss-of-function mouse models were generated with tissue-specific knockout of the core Notch signaling component, RBPjκ. The AcanCre(ERT2) transgene specifically removed Rbpjκ floxed alleles in postnatal joint chondrocytes, while the Col1Cre(2.3kb) transgene deleted Rbpjκ in osteoblast populations, including subchondral osteoblasts. Mutant and control mice were analyzed via histology, immunohistochemistry (IHC), real-time quantitative polymerase chain reaction (qPCR), X-ray, and microCT imaging at multiple time-points. RESULTS Loss of Notch signaling in postnatal joint chondrocytes results in a progressive OA-like pathology, and triggered the recruitment of non-targeted fibrotic cells into the articular cartilage potentially due to mis-regulated chemokine expression from within the cartilage. Upon recruitment, these fibrotic cells produced degenerative enzymes that may lead to the observed cartilage degradation and contribute to a significant portion of the age-related OA-like pathology. On the contrary, loss of Notch signaling in subchondral osteoblasts did not affect normal cartilage development or joint maintenance. CONCLUSIONS RBPjκ-dependent Notch signaling in postnatal joint chondrocytes, but not subchondral osteoblasts, is required for articular cartilage and joint maintenance.
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MESH Headings
- Animals
- Arthritis, Experimental/genetics
- Arthritis, Experimental/metabolism
- Arthritis, Experimental/pathology
- Arthritis, Experimental/physiopathology
- Cartilage, Articular/growth & development
- Cartilage, Articular/metabolism
- Cartilage, Articular/pathology
- Cartilage, Articular/physiopathology
- Chondrocytes/metabolism
- Disease Progression
- Gene Expression Regulation, Developmental
- Mice
- Mice, Transgenic
- Osteoarthritis/genetics
- Osteoarthritis/metabolism
- Osteoarthritis/pathology
- Osteoarthritis/physiopathology
- Osteoblasts/metabolism
- Receptors, Notch/genetics
- Receptors, Notch/physiology
- Signal Transduction/physiology
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Affiliation(s)
- Z Liu
- Department of Orthopaedics and Rehabilitation, The Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, NY 14642, USA; Department of Biology, University of Rochester, Rochester, NY 14642, USA
| | - Y Ren
- Department of Orthopaedic Surgery, Duke Orthopaedic Cellular, Developmental, and Genome Laboratories, Duke University School of Medicine, Durham, NC 27710, USA
| | - A J Mirando
- Department of Orthopaedics and Rehabilitation, The Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, NY 14642, USA; Department of Orthopaedic Surgery, Duke Orthopaedic Cellular, Developmental, and Genome Laboratories, Duke University School of Medicine, Durham, NC 27710, USA
| | - C Wang
- Department of Orthopaedics and Rehabilitation, The Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, NY 14642, USA; Department of Orthopaedic Surgery, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - M J Zuscik
- Department of Orthopaedics and Rehabilitation, The Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, NY 14642, USA
| | - R J O'Keefe
- Department of Orthopaedics and Rehabilitation, The Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, NY 14642, USA; Department of Orthopaedic Surgery, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - M J Hilton
- Department of Orthopaedics and Rehabilitation, The Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, NY 14642, USA; Department of Orthopaedic Surgery, Duke Orthopaedic Cellular, Developmental, and Genome Laboratories, Duke University School of Medicine, Durham, NC 27710, USA; Department of Cell Biology, Duke University School of Medicine, Durham, NC 27710, USA.
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184
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Ren Y, Khan FA, Pandupuspitasari NS, Zhang S. Immune Evasion Strategies of Pathogens in Macrophages: the Potential for Limiting Pathogen Transmission. Curr Issues Mol Biol 2016; 21:21-40. [PMID: 27033743] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023] Open
Abstract
Preventing pathogen transmission to a new host is of major interest to the immunologist and could benefit from a detailed investigation of pathogen immune evasion strategies. The first line of defense against pathogen invasion is provided by macrophages. When they sense pathogens, macrophages initiate signals to inflammatory and pro-inflammatory cytokines through pattern recognition receptors (PRRs) subsequently mediating phagocytosis and inflammation. The macrophage immune machinery classically includes two subsets: the activated M1 and the activated M2 that respond accordingly in diverse immune challenges. The lipid and glycogen metabolic pathways work together with the lysosome to help the mature phagosome to degrade and eliminate intracellular pathogens in macrophages. The viral evasion strategies are even more complex due to the interplay between autophagy and apoptosis. However, pathogens evolve several strategies to camouflage themselves against immune responses in order to ensure their survival, replication and transmission. These strategies include the muting of PRRs initiated inflammatory responses, attenuation of M1 and/or induction of M2 macrophages, suppression of autophago-lysosomal formation, interference with lipid and glycogen metabolism, and viral mediation of autophagy and apoptosis cross-talk to enhance viral replication. This review focuses on pathogen immune evasion methods and on the strategies used by the host against camouflaged pathogens.
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Affiliation(s)
- Yuwei Ren
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education, Huazhong Agriculture University, Hubei Wuhan 430070, China
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185
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Lou C, Xiao M, Cheng S, Lu X, Jia S, Ren Y, Li Z. MiR-485-3p and miR-485-5p suppress breast cancer cell metastasis by inhibiting PGC-1α expression. Cell Death Dis 2016; 7:e2159. [PMID: 27010860 PMCID: PMC4823935 DOI: 10.1038/cddis.2016.27] [Citation(s) in RCA: 128] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2015] [Revised: 12/14/2015] [Accepted: 01/03/2015] [Indexed: 12/21/2022]
Abstract
Breast cancer is the worldwide leading cause of cancer mortality in women. The majority of deaths from breast cancer arise from metastasis of local tumors. Cancer cells support their rapid proliferation by diverting metabolites into anabolic pathways, but during cancer metastasis, the proliferative program of invasive cancer cells is suspended for a migratory phenotype. In this study, we demonstrated that both mature forms of miRNA-485, miR-485-3p and miR-485-5p were involved in regulating mitochondrial respiration, cell migration and cell invasion in breast cancer cells by directly targeting and inhibiting the expression of PGC-1α. Specifically, the expression levels of both miR-485-3p and miR-485-5p were decreased in breast cancer tissues. Overexpression of miR-485-3p and miR-485-5p suppressed mitochondrial respiration and potential for cell migration and invasion in vitro, and also inhibited spontaneous metastasis of breast cancer cells in vivo. The suppression of mitochondrial respiration and cell invasion could be partially relieved by restoration of PGC-1α expression.
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Affiliation(s)
- C Lou
- Department of Breast Surgery, The Affiliated Tumor Hospital, Harbin Medical University, Harbin, China
| | - M Xiao
- Department of Breast Surgery, The Affiliated Tumor Hospital, Harbin Medical University, Harbin, China
| | - S Cheng
- Department of Breast Surgery, The Affiliated Tumor Hospital, Harbin Medical University, Harbin, China
| | - X Lu
- Department of Breast Surgery, The Affiliated Tumor Hospital, Harbin Medical University, Harbin, China
| | - S Jia
- Department of Breast Surgery, The Affiliated Tumor Hospital, Harbin Medical University, Harbin, China
| | - Y Ren
- Department of Breast Surgery, The Affiliated Tumor Hospital, Harbin Medical University, Harbin, China
| | - Z Li
- Department of Breast Surgery, The Affiliated Tumor Hospital, Harbin Medical University, Harbin, China
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186
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Wang L, Li H, Ren Y, Zou S, Fang W, Jiang X, Jia L, Li M, Liu X, Yuan X, Chen G, Yang J, Wu C. Targeting HDAC with a novel inhibitor effectively reverses paclitaxel resistance in non-small cell lung cancer via multiple mechanisms. Cell Death Dis 2016; 7:e2063. [PMID: 26794658 PMCID: PMC4816165 DOI: 10.1038/cddis.2015.328] [Citation(s) in RCA: 64] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2015] [Revised: 09/25/2015] [Accepted: 10/06/2015] [Indexed: 11/25/2022]
Abstract
Chemotherapy paclitaxel yields significant reductions in tumor burden in the majority of advanced non-small cell lung cancer (NSCLC) patients. However, acquired resistance limits its clinical use. Here we demonstrated that the histone deacetylase (HDAC) was activated in paclitaxel-resistant NSCLC cells, and its activation promoted proliferation and tumorigenesis of paclitaxel-resistant NSCLC cells in vitro and in vivo. By contrast, knockdown of HDAC1, a primary isoform of HDAC, sensitized resistant cells to paclitaxel in vitro. Furthermore, we observed that overexpression of HDAC1 was associated with the downregulation of p21, a known HDAC target, in advanced NSCLC patients with paclitaxel treatment, and predicted chemotherapy resistance and bad outcome. In addition, we also identified a novel HDACs inhibitor, SNOH-3, which inhibited HDAC expression and activity, induced cell apoptosis, and suppressed cell migration, invasion and angiogenesis. Notably, co-treatment with SNOH-3 and paclitaxel overcome paclitaxel resistance through inhibiting HDAC activity, leading to the induction of apoptosis and suppression of angiogenesis in vitro and in preclinical model. In summary, our data demonstrate a role of HDAC in paclitaxel-resistant NSCLC and provide a promising therapeutic strategy to overcome paclitaxel-acquired resistance.
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Affiliation(s)
- L Wang
- Department of Pharmacology, Shenyang Pharmaceutical University, Shenyang, PR China.,Benxi Institute of Pharmaceutical Research, Shenyang Pharmaceutical University, Shenyang, PR China
| | - H Li
- Department of Pharmacology, Shenyang Pharmaceutical University, Shenyang, PR China.,Benxi Institute of Pharmaceutical Research, Shenyang Pharmaceutical University, Shenyang, PR China
| | - Y Ren
- Department of Pathology, Wuhan General Hospital of Guangzhou Command, People's Liberation Army, Wuhan, PR China
| | - S Zou
- Key Laboratory of Structure-Based Drugs Design and Discovery of Ministry of Education, Shenyang Pharmaceutical University, Shenyang, PR China
| | - W Fang
- Key Laboratory of Structure-Based Drugs Design and Discovery of Ministry of Education, Shenyang Pharmaceutical University, Shenyang, PR China
| | - X Jiang
- Department of Pharmacology, Shenyang Pharmaceutical University, Shenyang, PR China.,Benxi Institute of Pharmaceutical Research, Shenyang Pharmaceutical University, Shenyang, PR China
| | - L Jia
- Department of Pharmacology, Shenyang Pharmaceutical University, Shenyang, PR China
| | - M Li
- Department of Pharmacology, Shenyang Pharmaceutical University, Shenyang, PR China.,Benxi Institute of Pharmaceutical Research, Shenyang Pharmaceutical University, Shenyang, PR China
| | - X Liu
- Department of Pharmacology, Shenyang Pharmaceutical University, Shenyang, PR China.,Benxi Institute of Pharmaceutical Research, Shenyang Pharmaceutical University, Shenyang, PR China
| | - X Yuan
- Department of Pharmacology, Shenyang Pharmaceutical University, Shenyang, PR China.,Benxi Institute of Pharmaceutical Research, Shenyang Pharmaceutical University, Shenyang, PR China
| | - G Chen
- Key Laboratory of Structure-Based Drugs Design and Discovery of Ministry of Education, Shenyang Pharmaceutical University, Shenyang, PR China
| | - J Yang
- Department of Pharmacology, Shenyang Pharmaceutical University, Shenyang, PR China.,Benxi Institute of Pharmaceutical Research, Shenyang Pharmaceutical University, Shenyang, PR China
| | - C Wu
- Department of Pharmacology, Shenyang Pharmaceutical University, Shenyang, PR China.,Benxi Institute of Pharmaceutical Research, Shenyang Pharmaceutical University, Shenyang, PR China
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187
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Ren Y. The Removal Effect of Pollutants and Components in Extracellular Polymeric Substances from Aerobic Granular Sludge in Simultaneous Removal of Organic Matter and Ammonia Nitrogen. CHEM BIOCHEM ENG Q 2016. [DOI: 10.15255/cabeq.2014.2137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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188
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Xu H, Zhao SQ, Ren Y, Xu W, Zhu DB, Jiang JZ, Cai JF. Primary investigation of the optical limiting performance of cyclo[8]pyrrole with a wide optical limiting window. RSC Adv 2016. [DOI: 10.1039/c5ra26417k] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Cyclo[8]pyrrole (CP) was prepared and its UV/vis spectral and optical limiting properties for ns light pulse were investigated withZ-scan technical.
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Affiliation(s)
- H. Xu
- College of Chemistry and Chemical Engineering
- Central South University
- Changsha
- China
| | - S. Q. Zhao
- College of Chemistry and Chemical Engineering
- Central South University
- Changsha
- China
| | - Y. Ren
- College of Chemistry and Chemical Engineering
- Central South University
- Changsha
- China
| | - W. Xu
- Laboratory of Organic Solids
- Center for Molecular Sciences
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100080
| | - D. B. Zhu
- Laboratory of Organic Solids
- Center for Molecular Sciences
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100080
| | - J. Z. Jiang
- College of Chemistry and Chemical Engineering
- Central South University
- Changsha
- China
| | - J. F. Cai
- Department of Chemistry
- University of South Florida
- Tampa
- America
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189
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Ren Y, Han C, Wang J, Jia Y, Kong L, Eerdun T, Wu L, Jiang D. hBMP-7 induces the differentiation of adipose-derived mesenchymal stem cells into osteoblast-like cells. Genet Mol Res 2016; 15:gmr8791. [DOI: 10.4238/gmr.15038791] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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190
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Xu YJ, Li SY, Cheng Q, Chen WK, Wang SL, Ren Y, Miao CH. Effects of anaesthesia on proliferation, invasion and apoptosis of LoVo colon cancer cells in vitro. Anaesthesia 2015; 71:147-54. [PMID: 26669824 DOI: 10.1111/anae.13331] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/20/2015] [Indexed: 01/24/2023]
Abstract
Tumour cell proliferation, invasion and apoptosis are crucial steps in tumour metastasis. We evaluated the effect of serum from patients undergoing colon cancer surgery receiving thoracic epidural and propofol anaesthesia on colon cancer cell biology. Patients were randomly assigned to receive propofol anaesthesia with a concomitant thoracic epidural (PEA, n = 20) or sevoflurane anaesthesia with opioid analgesia (SGA, n = 20). Venous blood was obtained before induction of anaesthesia and 24 hours postoperatively. The LoVo colon cancer cells were cultured with patient serum from both groups and the effects on proliferation, invasion and apoptosis were measured. Twenty-four hours after surgery, the absorbance value of LoVo cells at 10% serum concentration from PEA was decreased when compared with SGA (0.302 (0.026) vs 0.391 (0.066), p = 0.005). The inhibitory rate of LoVo cells at 10% serum concentration from PEA was higher than that from SGA (p = 0.004) 24 h after surgery. The number of invasive LoVo cells at 10% serum concentration from PEA was reduced when compared with SGA (44 (4) vs 62 (4), p < 0.001). Exposure of LoVo cells to postoperative serum from patients receiving PEA led to a higher luminescence ratio (apoptosis) than those receiving SGA (0.36 (0.04) vs 0.27 (0.05), p < 0.001). Serum from patients receiving PEA for colon cancer surgery inhibited proliferation and invasion of LoVo cells and induced apoptosis in vitro more than that from patients receiving SGA. Anaesthetic technique might influence the serum milieu in a way that affects cancer cell biology and, thereby, tumour metastastasis.
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Affiliation(s)
- Y J Xu
- Department of Anaesthesiology, Fudan University Shanghai Cancer Center, Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - S Y Li
- Pathology Office, Shanghai University of Tranditional Chinese Medicine, Shanghai, China
| | - Q Cheng
- Department of Anaesthesiology, Fudan University Shanghai Cancer Center, Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - W K Chen
- Department of Anaesthesiology, Fudan University Shanghai Cancer Center, Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - S L Wang
- Department of Anaesthesiology, Fudan University Shanghai Cancer Center, Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Y Ren
- Department of Anaesthesiology, Fudan University Shanghai Cancer Center, Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - C H Miao
- Department of Anaesthesiology, Fudan University Shanghai Cancer Center, Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
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191
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Kong L, Zhou X, Wu Y, Wang Y, Chen L, Li P, Liu S, Sun S, Ren Y, Mei M, Wang X, Zhang L. Targeting HOTAIR induces mitochondria related apoptosis and inhibits tumor growth in head and neck squamous cell carcinoma in vitro and in vivo. Curr Mol Med 2015; 15:952-60. [DOI: 10.2174/1566524016666151123112716] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2015] [Revised: 10/15/2015] [Accepted: 11/20/2015] [Indexed: 11/22/2022]
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192
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Prasai B, Wilson AR, Wiley BJ, Ren Y, Petkov V. On the road to metallic nanoparticles by rational design: bridging the gap between atomic-level theoretical modeling and reality by total scattering experiments. Nanoscale 2015; 7:17902-17922. [PMID: 26463562 DOI: 10.1039/c5nr04678e] [Citation(s) in RCA: 8] [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: 06/05/2023]
Abstract
The extent to which current theoretical modeling alone can reveal real-world metallic nanoparticles (NPs) at the atomic level was scrutinized and demonstrated to be insufficient and how it can be improved by using a pragmatic approach involving straightforward experiments is shown. In particular, 4 to 6 nm in size silica supported Au(100-x)Pd(x) (x = 30, 46 and 58) explored for catalytic applications is characterized structurally by total scattering experiments including high-energy synchrotron X-ray diffraction (XRD) coupled to atomic pair distribution function (PDF) analysis. Atomic-level models for the NPs are built by molecular dynamics simulations based on the archetypal for current theoretical modeling Sutton-Chen (SC) method. Models are matched against independent experimental data and are demonstrated to be inaccurate unless their theoretical foundation, i.e. the SC method, is supplemented with basic yet crucial information on the length and strength of metal-to-metal bonds and, when necessary, structural disorder in the actual NPs studied. An atomic PDF-based approach for accessing such information and implementing it in theoretical modeling is put forward. For completeness, the approach is concisely demonstrated on 15 nm in size water-dispersed Au particles explored for bio-medical applications and 16 nm in size hexane-dispersed Fe48Pd52 particles explored for magnetic applications as well. It is argued that when "tuned up" against experiments relevant to metals and alloys confined to nanoscale dimensions, such as total scattering coupled to atomic PDF analysis, rather than by mere intuition and/or against data for the respective solids, atomic-level theoretical modeling can provide a sound understanding of the synthesis-structure-property relationships in real-world metallic NPs. Ultimately this can help advance nanoscience and technology a step closer to producing metallic NPs by rational design.
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Affiliation(s)
- Binay Prasai
- Department of Physics, Central Michigan University, Mt. Pleasant, Michigan 48858, USA.
| | - A R Wilson
- Department of Chemistry, Duke University, Durham, NC 27708, USA
| | - B J Wiley
- Department of Chemistry, Duke University, Durham, NC 27708, USA
| | - Y Ren
- X-ray Science Division, Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - Valeri Petkov
- Department of Physics, Central Michigan University, Mt. Pleasant, Michigan 48858, USA.
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193
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Tang X, Ren Y, Jiang B, Gong W. Education and Imaging: Gastroenterology: Endoscopic mucosal resection for esophageal dysplasia in an achalasia patient followed by peroral endoscopic myotomy. J Gastroenterol Hepatol 2015; 30:1563. [PMID: 26177680 DOI: 10.1111/jgh.13034] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/06/2015] [Accepted: 04/16/2015] [Indexed: 02/05/2023]
Affiliation(s)
- X Tang
- Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, China.,Department of Gastroenterology, Beijing Tsinghua Changgung Hospital Medical Center, Tsinghua University, Beijing, China
| | - Y Ren
- Department of Gastroenterology, Beijing Tsinghua Changgung Hospital Medical Center, Tsinghua University, Beijing, China
| | - B Jiang
- Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, China.,Department of Gastroenterology, Beijing Tsinghua Changgung Hospital Medical Center, Tsinghua University, Beijing, China
| | - W Gong
- Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, China
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194
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Jing CC, Luo XG, Cui HG, Li FR, Li P, Jiang EZ, Ren Y, Pang H. Screening of polymorphisms located in the FGF20 and TMEM175 genes in North Chinese Parkinson's disease patients. Genet Mol Res 2015; 14:13679-87. [PMID: 26535683 DOI: 10.4238/2015.october.28.30] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Genome-wide association studies have reported numerous susceptibility loci for Parkinson's disease (PD). However, there have been few replication studies examining these loci in northern Chinese populations. To evaluate the relationships among 3 polymorphic markers located in the fibroblast growth factor 20 and transmembrane protein 175 genes and the genetic susceptibility to PD in northern Chinese subjects, 2 single nucleotide polymorphisms, and 1 insertion/deletion marker (rs591323 in FGF20; rs6599388 and rs142821586 in transmembrane protein 175 near the G-associated kinase/diacylglycerol kinase theta region) were investigated in 313 PD patients and 318 matched controls. Mismatched multiplex polymerase chain reaction-restriction fragment length polymorphism analysis as well as sequence-specific primer polymerase chain reaction and restriction fragment length polymorphism assays were performed. The genotypic frequency of rs591323 differed significantly between the patient and control groups; however, neither rs6599388 nor rs142821586 was associated with PD. We corrected the Hardy-Weinberg disequilibrium for rs6599388, which was previously reported to be common in 4 Asian descent populations into equilibrium status by simultaneously genotyping rs6599388 and rs142821586. In summary, we found that rs591323 was associated with PD but rs6599388 and rs142821586 were not associated with PD in a northern Chinese population.
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Affiliation(s)
- C C Jing
- School of Forensic Medicine, China Medical University, Shenyang, China
| | - X G Luo
- Department of Neurology, First Affiliated Hospital of China Medical University, Shenyang, China
| | - H G Cui
- School of Forensic Medicine, China Medical University, Shenyang, China
| | - F R Li
- School of Forensic Medicine, China Medical University, Shenyang, China
| | - P Li
- School of Forensic Medicine, China Medical University, Shenyang, China
| | - E Z Jiang
- School of Forensic Medicine, China Medical University, Shenyang, China
| | - Y Ren
- Department of Neurology, First Affiliated Hospital of China Medical University, Shenyang, China
| | - H Pang
- School of Forensic Medicine, China Medical University, Shenyang, China
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195
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Wallis R, Degl'Iinnocenti R, Jessop DS, Ren Y, Klimont A, Shah YD, Mitrofanov O, Bledt CM, Melzer JE, Harrington JA, Beere HE, Ritchie DA. Efficient coupling of double-metal terahertz quantum cascade lasers to flexible dielectric-lined hollow metallic waveguides. Opt Express 2015; 23:26276-26287. [PMID: 26480141 DOI: 10.1364/oe.23.026276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The growth in terahertz frequency applications utilising the quantum cascade laser is hampered by a lack of targeted power delivery solutions over large distances (>100 mm). Here we demonstrate the efficient coupling of double-metal quantum cascade lasers into flexible polystyrene lined hollow metallic waveguides via the use of a hollow copper waveguide integrated into the laser mounting block. Our approach exhibits low divergence, Gaussian-like emission, which is robust to misalignment error, at distances > 550 mm, with a coupling efficiency from the hollow copper waveguide into the flexible waveguide > 90%. We also demonstrate the ability to nitrogen purge the flexible waveguide, increasing the power transmission by up to 20% at 2.85 THz, which paves the way for future fibre based terahertz sensing and spectroscopy applications.
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196
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Wang B, Zhuang R, Luo X, Yin L, Pang C, Feng T, You H, Zhai Y, Ren Y, Zhang L, Li L, Zhao J, Hu D. Prevalence of Metabolically Healthy Obese and Metabolically Obese but Normal Weight in Adults Worldwide: A Meta-Analysis. Horm Metab Res 2015; 47:839-45. [PMID: 26340705 DOI: 10.1055/s-0035-1559767] [Citation(s) in RCA: 66] [Impact Index Per Article: 7.3] [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: 10/23/2022]
Abstract
The objective of the present study was to summarize the prevalence and influencing factors of metabolically healthy obese (MHO) and metabolically obese but normal weight (MONW) among people ≥ 18 years old in the general population worldwide. We searched for studies of the prevalence of MHO and MONW published in English and Chinese up to October 2013. Pooled prevalence estimates were calculated by a random-effects model according to a Q test. The effects of gender, region, age, sample size, smoking, and alcohol consumption on MHO and MONW were analyzed. Differences between subgroups were assessed by chi-square test. Publication bias was estimated by Egger's test. Studies of MHO and MONW showed heterogeneity (I(2)=99.4% and I(2)=99.7%, respectively). The overall prevalence of MHO and MONW was 7.27% (95% CI 5.92-8.90%) and 19.98% (95% CI 16.54-23.94%), respectively. American populations had the highest MHO prevalence and European populations the highest MONW prevalence. Different patterns of MHO and MONW were observed in the subgroup analysis with respect to gender, age, sample size, smoking, alcohol consumption, and metabolically healthy criteria. The prevalence of both MHO and MONW were affected by gender, region, age, sample size, smoking, alcohol consumption, and metabolically healthy criteria, but studies showed high heterogeneity.
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Affiliation(s)
- B Wang
- Department of Epidemiology and Health Statistics, College of Public Health, Zhengzhou University, Zhengzhou, P. R. China
| | - R Zhuang
- School of Public Health and Tropical Medicine, Southern Medical University, Guangzhou, P. R. China
| | - X Luo
- Department of Preventive Medicine, Shenzhen University School of Medicine, Shenzhen, P. R. China
| | - L Yin
- Department of Prevention and Health Care, Military Hospital of Henan Province, Zhengzhou, P. R. China
| | - C Pang
- Department of Prevention and Health Care, Military Hospital of Henan Province, Zhengzhou, P. R. China
| | - T Feng
- Department of Prevention and Health Care, Military Hospital of Henan Province, Zhengzhou, P. R. China
| | - H You
- Department of Blood Transfusion, Xijing Hospital, The Fourth Military Medical University, Xian, P. R. China
| | - Y Zhai
- Department of Public Health Surveillance and Advisory, Zhejiang Provincial Centre for Disease Control and Prevention, Hangzhou, P. R. China
| | - Y Ren
- Department of Epidemiology and Health Statistics, College of Public Health, Zhengzhou University, Zhengzhou, P. R. China
| | - L Zhang
- Department of Epidemiology and Health Statistics, College of Public Health, Zhengzhou University, Zhengzhou, P. R. China
| | - L Li
- Department of Epidemiology and Health Statistics, College of Public Health, Zhengzhou University, Zhengzhou, P. R. China
| | - J Zhao
- Department of Prevention and Health Care, Military Hospital of Henan Province, Zhengzhou, P. R. China
| | - D Hu
- Department of Preventive Medicine, Shenzhen University School of Medicine, Shenzhen, P. R. China
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197
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Palmer A, Silevitch DM, Feng Y, Wang Y, Jaramillo R, Banerjee A, Ren Y, Rosenbaum TF. Sub-Kelvin magnetic and electrical measurements in a diamond anvil cell with in situ tunability. Rev Sci Instrum 2015; 86:093901. [PMID: 26429451 DOI: 10.1063/1.4929861] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
We discuss techniques for performing continuous measurements across a wide range of pressure-field-temperature phase space, combining the milli-Kelvin temperatures of a helium dilution refrigerator with the giga-Pascal pressures of a diamond anvil cell and the Tesla magnetic fields of a superconducting magnet. With a view towards minimizing remnant magnetic fields and background magnetic susceptibility, we characterize high-strength superalloy materials for the pressure cell assembly, which allows high fidelity measurements of low-field phenomena such as superconductivity below 100 mK at pressures above 10 GPa. In situ tunability and measurement of the pressure permit experiments over a wide range of pressure, while at the same time making possible precise steps across abrupt phase transitions such as those from insulator to metal.
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Affiliation(s)
- A Palmer
- The James Franck Institute and Department of Physics, The University of Chicago, Chicago, Illinois 60637, USA
| | - D M Silevitch
- The James Franck Institute and Department of Physics, The University of Chicago, Chicago, Illinois 60637, USA
| | - Yejun Feng
- The James Franck Institute and Department of Physics, The University of Chicago, Chicago, Illinois 60637, USA
| | - Yishu Wang
- The James Franck Institute and Department of Physics, The University of Chicago, Chicago, Illinois 60637, USA
| | - R Jaramillo
- Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02138, USA
| | - A Banerjee
- Quantum Condensed Matter Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
| | - Y Ren
- The Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - T F Rosenbaum
- The James Franck Institute and Department of Physics, The University of Chicago, Chicago, Illinois 60637, USA
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198
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Min YQ, Ren Y, Zhang XL. An E2 N-glycosylation mutant with enhancement of inducible cellular and neutralising antibody responses as a novel potential therapeutic vaccine for treatment of hepatitis C virus infection. J Clin Virol 2015. [DOI: 10.1016/j.jcv.2015.06.053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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199
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Yu J, Wang H, Zha M, Qing Y, Bai N, Ren Y, Xi X, Liu W, Menghe B, Zhang H. Molecular identification and quantification of lactic acid bacteria in traditional fermented dairy foods of Russia. J Dairy Sci 2015; 98:5143-54. [DOI: 10.3168/jds.2015-9460] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2015] [Accepted: 04/11/2015] [Indexed: 11/19/2022]
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200
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Malmstrom H, Dellanzo-Savu A, Xiao J, Feng C, Jabeen A, Romero M, Huang J, Ren Y, Yunker MA. Success, clinical performance and patient satisfaction of direct fibre-reinforced composite fixed partial dentures - a two-year clinical study. J Oral Rehabil 2015; 42:906-13. [PMID: 26172283 DOI: 10.1111/joor.12327] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/31/2015] [Indexed: 11/29/2022]
Affiliation(s)
- H. Malmstrom
- Division of General Dentistry; Eastman Institute for Oral Health; University of Rochester; Rochester NY USA
| | - A. Dellanzo-Savu
- Division of General Dentistry; Eastman Institute for Oral Health; University of Rochester; Rochester NY USA
| | - J. Xiao
- Division of General Dentistry; Eastman Institute for Oral Health; University of Rochester; Rochester NY USA
| | - C. Feng
- Department of Biostatistics and Computational Biology; University of Rochester; Rochester NY USA
| | - A. Jabeen
- University of Detroit Mercy School of Dentistry; Detroit MI USA
| | - M. Romero
- Operative Dentistry; Georgia Regents University; Augusta GA USA
| | - J. Huang
- General Dentistry Department; College of Stomatology; Peking University; Beijing China
| | - Y. Ren
- Division of General Dentistry; Eastman Institute for Oral Health; University of Rochester; Rochester NY USA
| | - M. A. Yunker
- Division of General Dentistry; Eastman Institute for Oral Health; University of Rochester; Rochester NY USA
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