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Wang Y, Yuan W, Kimber M, Lu M, Dong L. Rapid Differentiation of Host and Parasitic Exosome Vesicles Using Microfluidic Photonic Crystal Biosensor. ACS Sens 2018; 3:1616-1621. [PMID: 30160476 DOI: 10.1021/acssensors.8b00360] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Parasite extracellular vesicles (EVs) are potential biomarkers that could be exploited for the diagnosis of infectious disease. This paper reports a rapid bioassay to discriminate parasite and host EVs. The EV detection assay utilizes a label-free photonic crystal (PC) biosensor to detect the EVs using a host-specific transmembrane protein (CD63), which is present on EV secreted by host cells (modeled by murine macrophage cell line J774A.1) but is not expressed on EV secreted by parasitic nematodes such as the gastrointestinal nematode Ascaris suum. The surface of PC is functionalized to recognize CD63, and is sensitive to the changes in refractive index caused by the immobilization of EVs. The biosensor demonstrates a detection limit of 2.18 × 109 EVs/mL and a capability to characterize the affinity constants of antibody-host EV bindings. The discrimination of murine host EVs from parasite EVs indicates the capability of the sensor to differentiate EVs from different origins. The label-free, rapid EV assay could be used to detection parasite infection and facilitate the exosome-based clinic diagnosis and exosome research.
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Wang W, Yuan W, Wei XD, Qi J, Ma J. [Expression of granulocyte colony-stimulating factor receptor in colitis-associated colonic carcinogenesis]. Zhonghua Zhong Liu Za Zhi 2018; 40:653-658. [PMID: 30293388 DOI: 10.3760/cma.j.issn.0253-3766.2018.09.003] [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 expression of granulocyte-colony stimulating factor receptor (G-CSFR) in a mouse model of colitis-associated cancer (CAC), and the roles of G-CSFR positive immune cells in the development of CAC. Methods: The C57BL/6 mouse model of CAC was established by azoxymethane and dextran sulphate sodium. Three different stages in the development of CAC, including inflammation (AD1), mild dysplasia (AD2) and adenocarcinoma (AD3) were simulated. Colon tissue was digested into single cell suspension and the expressions of G-CSF and G-CSFR were analyzed by real-time PCR and fluorescence activated cell sorter (FACS). The expressions of G-CSFR on T cell, macrophage and neutrophil were analyzed by FACS. Results: The establishment of mouse model can effectively simulate the disease progression of CAC. The results of real-time PCR detection showed that the expression level of G-CSF mRNA in AD1, AD2 and AD3 groups were 1.2, 7.3 and 18.0-fold changes of the control group, respectively. The differences between AD2, AD3 and control groups were statistically significant (P<0.05). G-CSFR mRNA levels in AD1, AD2 and AD3 groups were 1.5, 2.2 and 4.5-fold changes of the control group, respectively. The difference between AD3 and control groups was statistically significant (P<0.05). FACS showed that the percentages of CD45(+) G-CSFR(+) cells in colorectal tissues of the control group, AD1, AD2 and AD3 groups were (21.84±1.77)%, (41.48±4.15)%, (44.84±8.54)% and (57.76±1.95)%, respectively.The percentages of CD45(+) G-CSFR(+) cells in AD2 and AD3 groups were significantly higher than that of control group (P<0.05). The percentages of CD45(+) G-CSFR(+) macrophage in the colorectal tissues of the control group, AD1, AD2 and AD3 groups were (21.54±5.88)%, (47.14±5.25)%, (42.49±7.80)% and (29.25±8.24)%, respectively. The percentages of CD45(+) G-CSFR(+) T cells in these groups were (30.04±6.87)%, (29.65±8.08)%, (33.75±7.37)% and (33.32±9.85)%, respectively. The percentages of CD45(+) G-CSFR(+) granulocyte were (2.39±2.10)%, (4.05±1.56)%, (3.62±2.67)% and (2.26±0.85)%, respectively (P<0.05). The percentages of G-CSFR(+) macrophage and G-CSFR(+) T cells were significantly higher than that of G-CSFR(+) granulocyte (P<0.05). The differences between AD1 and control group, AD2 and control group, AD1 and AD2 group, AD2 and AD3 group were statistically significant (P<0.05). Conclusions: The expression of G-CSFR is significantly up-regulated in the development of CAC. The enrichment of G-CSFR(+) macrophages in the colon tissue suggests G-CSFR(+) macrophages participate in the development of CAC.
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Affiliation(s)
- W Wang
- Department of Clinical Laboratory, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - W Yuan
- State Key Laboratory of Molecular Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - X D Wei
- Department of Biotherapy, Beijing Hospital, National Center of Gerontology, Beijing 100730, China
| | - J Qi
- Department of Clinical Laboratory, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - J Ma
- Department of Biotherapy, Beijing Hospital, National Center of Gerontology, Beijing 100730, China
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Abstract
Nonenveloped gastrointestinal viruses, such as human rotavirus, can exit infected cells from the apical surface without cell lysis. The mechanism of such nonlytic exit is poorly understood. The nonenveloped Orsay virus is an RNA virus infecting the intestine cells of the nematode Caenorhabditis elegans Dye staining results suggested that Orsay virus exits from the intestine of infected worms in a nonlytic manner. Therefore, the Orsay virus-C. elegans system provides an excellent in vivo model to study viral exit. The Orsay virus genome encodes three proteins: RNA-dependent RNA polymerase, capsid protein (CP), and a nonstructural protein, δ. δ can also be expressed as a structural CP-δ fusion. We generated an ATG-to-CTG mutant virus that had a normal CP-δ fusion but could not produce free δ due to the lack of the start codon. This mutant virus showed a viral exit defect without obvious phenotypes in other steps of viral infection, suggesting that δ is involved in viral exit. Ectopically expressed free δ localized near the apical membrane of intestine cells in C. elegans and colocalized with ACT-5, an intestine-specific actin that is a component of the terminal web. Orsay virus infection rearranged ACT-5 apical localization. Reduction of the ACT-5 level via RNA interference (RNAi) significantly exacerbated the viral exit defect of the δ mutant virus, suggesting that δ and ACT-5 functionally interact to promote Orsay virus exit. Together, these data support a model in which the viral δ protein interacts with the actin network at the apical side of host intestine cells to mediate the polarized, nonlytic egress of Orsay virus.IMPORTANCE An important step of the viral life cycle is how viruses exit from host cells to spread to other cells. Certain nonenveloped viruses can exit cultured cells in nonlytic ways; however, such nonlytic exit has not been demonstrated in vivo In addition, it is not clear how such nonlytic exit is achieved mechanistically in vivo Orsay virus is a nonenveloped RNA virus that infects the intestine cells of the nematode C. elegans It is currently the only virus known to naturally infect C. elegans Using this in vivo model, we show that the δ protein encoded by Orsay virus facilitates the nonlytic exit of the virus, possibly by interacting with host actin on the apical side of worm intestine cells.
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Affiliation(s)
- Wang Yuan
- Department of BioSciences, Rice University, Houston, Texas, USA
| | - Ying Zhou
- Department of BioSciences, Rice University, Houston, Texas, USA
| | - Yanlin Fan
- Department of BioSciences, Rice University, Houston, Texas, USA
| | - Yizhi J Tao
- Department of BioSciences, Rice University, Houston, Texas, USA
| | - Weiwei Zhong
- Department of BioSciences, Rice University, Houston, Texas, USA
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Heng-Yu L, Ning S, Kun G, Yuan W, De-Yu Y. Effects of Saccharomyces Cerevisiae Strains on Chemical Profiles of Cabernet Sauvignon Wines: Based on the Combined Results of 1H NMR, HS-SPME/GC-MS and HPLC-DAD-ESI-MS/MS. CURR TOP NUTRACEUT R 2018. [DOI: 10.37290/ctnr2641-452x.18:115-131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Five Saccharomyces cerevisiae strains (Chinese indigenous yeasts SC5, WC5, SC8, CC17 and commercial starter F15) were inoculated into Cabernet sauvignon grape must and fermented at pilot scale. For the first time, combination of 1H NMR, HS-SPME/GC-MS and HPLC-DAD-ESI-MS/MS metabonomic profiling techniques was performed to analyze the global chemical fingerprints of sampled wines at the end of alcoholic and malolactic fermentation respectively, then 13 non-volatile flavor compounds, 52 volatile organic aromas and 43 polyphenolic molecules were identified and determined correspondently. All principal component analysis (PCA) of two fermentation stages based on the analytical results of 1H NMR, HS-SPME/GC-MS and HPLC-DAD-ESI-MS/MS divided these strains into three clusters: (1) SC5 and SC8, (2) WC5 and F15 and (3) CC17. The wine fermented by indigenous yeast, CC17, showed a very unique chemical profile, such as low pH and high color intensity, reduced amino acids (including proline) and the lowest total higher alcohols levels, most of the fixed acids, glycerol, ethyl esters and anthocyanins concentrations. The statistical results indicate that CC17 strain possesses very special anabolism and catabolism abilities on such substances in grape juice and has potentiality to produce characteristic wines with high qualities.
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Affiliation(s)
- Liang Heng-Yu
- Research Institute of Biotechnology and Medicine, Shenyang Research Institute of Chemical Industry Co., Ltd, Shenyang 110021, China and Key Laboratory of Combinatorial Biosynthesis and Drug Discovery, Ministry of Education and Wuhan University School of Pharmaceutical Sciences, Wuhan 430071, China and Heilongjiang Engineering and Technology Center for Biological Preservatives, Amtech Biotech Co., Ltd, Qiqihar 161031, China
| | - Su Ning
- COFCO Huaxia Great Wall Wine Co. Ltd., Changli 066600, China
| | - Guo Kun
- Heilongjiang Engineering and Technology Center for Biological Preservatives, Amtech Biotech Co., Ltd, Qiqihar 161031, China and College of Life Sciences, Heilongjiang University, Harbin 150080, China
| | - Wang Yuan
- Research Institute of Biotechnology and Medicine, Shenyang Research Institute of Chemical Industry Co., Ltd, Shenyang 110021, China
| | - Yang De-Yu
- Research Institute of Biotechnology and Medicine, Shenyang Research Institute of Chemical Industry Co., Ltd, Shenyang 110021, China
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105
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Li F, Tian YP, Liu XM, Xia RL, Jin LM, Sun XW, Song XX, Yuan W, Liang H. [A prospective cohort study on the relationship between maternal prenatal depressive symptoms and children's behavioral problems at 2 years old]. Zhonghua Liu Xing Bing Xue Za Zhi 2018; 39:455-459. [PMID: 29699036 DOI: 10.3760/cma.j.issn.0254-6450.2018.04.013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore the associations between maternal and prenatal depressive symptoms and children's behavioral problems at 2 years old. Methods: In the present study, a total of 491 mother-child pairs were selected from the Shanghai-Minhang Birth Cohort Study (S-MBCS) which was conducted in Maternal and Child Health Hospital of Minhang District in Shanghai between April and December, 2012. Data from the Center for Epidemiologic Studies on Depression was gathered to assess the maternal depressive symptoms in the second and third trimester of pregnancy, as well as at 6 months and 12 months postpartum. Neurodevelopment at 2 years was assessed, using the Child Behavior Checklist. We used generalized linear models with a log-link function and a Binomial distribution to estimate the risk ratios (RRs) and 95%CIs, on children's behavioral problems at 2 years of age. Sensitivity analyses were performed among participants without postpartum depressive symptoms. Results: After adjustment on factors as maternal age, gestation week, average monthly income per person, parental education and children's gender etc., maternal depression in second trimester of pregnancy was found associated with higher risk of both developing emotional (RR=2.61, 95%CI: 1.36-4.99) and internalizing problems (RR=1.94, 95%CI: 1.22-3.08). However, maternal depression in third trimester was found to be associated with higher risks of developing emotional (RR=6.46, 95%CI: 3.09-13.53), withdrawn (RR=2.42, 95%CI: 1.16-5.02), aggressive (RR=2.93, 95%CI: 1.45-5.94), internalizing (RR=1.79, 95%CI: 1.01-3.16) or externalizing problems (RR=2.56, 95%CI:1.49-4.42). In sensitivity analysis, antenatal maternal depression was found positively associated with children's emotional, internalizing and externalizing problems and the differences all statistically significant. Conclusions: Maternal depression during pregnancy might increase the risks of children's behavioral problems. In order to decrease the incidence of children's behavioral problems and promoting both maternal and child health status, monitoring program regarding maternal mental health care should be strengthened.
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Affiliation(s)
- F Li
- Department of Epidemiology, School of Public Health, Fudan University, Shanghai 200032, China; Department of Reproductive Epidemiology and Social Medicine, Shanghai Institute of Planned Parenthood Research, Shanghai 200237, China
| | - Y P Tian
- Department of Epidemiology, School of Public Health, Fudan University, Shanghai 200032, China; Department of Reproductive Epidemiology and Social Medicine, Shanghai Institute of Planned Parenthood Research, Shanghai 200237, China
| | - X M Liu
- Department of Reproductive Epidemiology and Social Medicine, Shanghai Institute of Planned Parenthood Research, Shanghai 200237, China
| | - R L Xia
- Department of Epidemiology, School of Public Health, Fudan University, Shanghai 200032, China; Department of Reproductive Epidemiology and Social Medicine, Shanghai Institute of Planned Parenthood Research, Shanghai 200237, China
| | - L M Jin
- Department of Maternal and Child Health Care, Shanghai Minhang Maternal and Child Health Hospital, Shanghai 201102, China
| | - X W Sun
- Department of Reproductive Epidemiology and Social Medicine, Shanghai Institute of Planned Parenthood Research, Shanghai 200237, China
| | - X X Song
- Department of Reproductive Epidemiology and Social Medicine, Shanghai Institute of Planned Parenthood Research, Shanghai 200237, China
| | - W Yuan
- Department of Reproductive Epidemiology and Social Medicine, Shanghai Institute of Planned Parenthood Research, Shanghai 200237, China
| | - H Liang
- Department of Reproductive Epidemiology and Social Medicine, Shanghai Institute of Planned Parenthood Research, Shanghai 200237, China
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106
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Chen YJ, Wen MX, Sui JX, Yan YQ, Yuan W, Hong L, Zhang L. Ameliorating Effects of Leaf Water Extract of Three Aromatic Plant Species on Ozone-Polluted Snap Bean (Phaseolus vulgaris L. 'Jiangjunyoudou'). Bull Environ Contam Toxicol 2018; 100:849-855. [PMID: 29572555 DOI: 10.1007/s00128-018-2331-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2017] [Accepted: 03/21/2018] [Indexed: 06/08/2023]
Abstract
Ozone (O3) is one of the major pollutants in near-surface air. In order to protect sensitive plants from O3 pollution, many kinds of protectants including synthetic ones, were assessed in previous studies. Although they have certain protective effects, some of them are not environment-friendly. In the present study, leaf water extracts of aromatic plants [Plectranthus hadiensis var. tomentosus (PHT), Pelargonium hortorum (PHB), Tagetes patula (TP)] were compared for mitigating the damages caused by O3 (150 ppb for 3 days, 8 h day-1) on snap bean (Phaseolus vulgaris 'Jiangjunyoudou'). Our results showed that O3 fumigation impaired plasma membrane, decreased chlorophyll content, increased contents of malondialdehyde and superoxide anion, inhibited photosynthesis, and caused visible injury. Leaf water extracts of PHT, PHB or TP ameliorated the negative effects of O3. Among them, extract of PHT showed the greatest potential to alleviate the O3-caused injury, followed by PHB and TP.
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Affiliation(s)
- Y J Chen
- College of Horticulture and Landscape Architecture, Northeast Agricultural University, Changjiang Road 600, Harbin, 150030, China
| | - M X Wen
- College of Horticulture and Landscape Architecture, Northeast Agricultural University, Changjiang Road 600, Harbin, 150030, China
| | - J X Sui
- College of Horticulture and Landscape Architecture, Northeast Agricultural University, Changjiang Road 600, Harbin, 150030, China
| | - Y Q Yan
- College of Horticulture and Landscape Architecture, Northeast Agricultural University, Changjiang Road 600, Harbin, 150030, China
| | - W Yuan
- College of Horticulture and Landscape Architecture, Northeast Agricultural University, Changjiang Road 600, Harbin, 150030, China
| | - L Hong
- College of Horticulture and Landscape Architecture, Northeast Agricultural University, Changjiang Road 600, Harbin, 150030, China
| | - L Zhang
- College of Horticulture and Landscape Architecture, Northeast Agricultural University, Changjiang Road 600, Harbin, 150030, China.
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107
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Yuan W, Sui CG, Ma X, Ma J. [A novel chemo-resistant gene MSX2 discovered by establishment of two pancreatic cancer drug resistant cell lines JF305/CDDP and PANC-1/GEM]. Zhonghua Zhong Liu Za Zhi 2018; 40:330-334. [PMID: 29860758 DOI: 10.3760/cma.j.issn.0253-3766.2018.05.003] [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 explore new multidrug resistant genes of pancreatic cancer by establishment and characterization of chemo-resistant cell lines. Methods: The cisplatin-resistant cell line JF305/CDDP and the gemcitabine-resistant cell line PANC-1/GEM were induced by high-dose intermittent treatment. CCK-8 assay was used to detect the 50% inhibiting concentration (IC(50)), drug resistance index (R), cross-resistance, and growth difference of different cells. The changes of cell cycle and migration ability of drug-resistant cells were determined by flow cytometry and transwell assay, respectively. And then real-time fluorescence quantitative PCR was used to detect the expression of multidrug resistance-related genes. Results: The drug resistance indexes of JF305/CDDP and PANC-1/GEM were 15.3 and 27.31, respectively, and there was cross-resistance. Compared with the parental cells, the proliferation rate of JF305/CDDP was decreased by 40% on the fourth day (P<0.05); the proportion of S phase was decreased from (45±2)% to (30±2)% (P<0.05), and the migration ability was enhanced from (32 ±1) cells per field to (158±5) cells per field (P<0.01). The expression of multidrug resistance-related genes MRP2, MDR1, LRP and MSX2 was increased in JF305/CDDP cells (P<0.05). Knockdown of MSX2 in JF305 cells reduced the expression of MRP2, whereas overexpression of MSX2 in PANC-1 cells upregulated MRP2 level (P<0.05). Conclusions: Two stable multidrug resistant cell lines of pancreatic cancer, JF305/CDDP and PANC-1/GEM, were successfully established. MSX2 might be a new drug resistance related gene in pancreatic cancer cells by up-regulation of MRP2 expression.
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Affiliation(s)
- W Yuan
- State Key Laboratory of Molecular Oncology, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - C G Sui
- State Key Laboratory of Molecular Oncology, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - X Ma
- State Key Laboratory of Molecular Oncology, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - J Ma
- Department of Biotherapy, Beijing Hospital, National Center of Gerontology, Beijing 100730, China
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Abstract
Bovine herpesvirus 1 (BoHV-1) infection causes substantial economic losses to the cattle industry worldwide. So far, the isolation of BoHV-1 field virus has not been reported in China. Here, for the first time we report that two isolates of BoHV-1 designated as NJ16-1 and NJ16-2 were obtained from semen samples from breeding bulls in China. Typical cytopathic effect in MDBK cells, detection of viral protein VP16 in western blot analysis, PCR detection of BoHV-1 gB gene proved BoHV-1 infection and subsequent nucleotide sequence analysis showed a 99% identity with BoHV-1 Cooper strain. These results suggest that these isolated viruses are BoHV-1.
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109
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Mao CJ, Xiong YT, Wang F, Yang YP, Yuan W, Zhu C, Chen J, Liu CF. Motor subtypes and other risk factors associated with drooling in Parkinson's disease patients. Acta Neurol Scand 2018; 137:509-514. [PMID: 29315470 DOI: 10.1111/ane.12893] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/14/2017] [Indexed: 12/31/2022]
Abstract
OBJECTIVE To explore the relationship between motor subtypes and drooling, and other risk factors associated with drooling in a large cohort of Chinese patients with Parkinson's disease (PD). METHODS A total of 586 PD patients were enrolled in this study. Unified Parkinson's disease rating scale (UPDRS) and Hoehn & Yahr stage (H & Y stage) scale, Epworth Sleepiness Scale (ESS), Pittsburgh Sleep Quality Index (PSQI), Hamilton Rating Scale for Depression-24 item (HRSD), and Mini-Mental State Examination (MMSE) were applied to all subjects. Salivary subscores of UPDRS part II were used to evaluate drooling. Constipation was diagnosed using the Rome III criteria. RESULTS The prevalence of drooling in this cohort is 54.6% (320/586). Non-TD subtype PD patients tend to have higher daily levodopa-equivalent dose (LED), H & Y stage, UPDRS I, UPDRS II, and UPDRS III scores, HRSD score and ESS score, a higher percentage of levodopa treatment, drooling, dyskinesia, and constipation. After adjusting for confounders, non-TD subtype, male sex, UPDRS III score, ESS and PSQI scores, and constipation were still associated with drooling, with corresponding Odds ratios and 95% confidence intervals (95% CIs) were 1.865 (95% CI, 1.137-3.060), 1. 951 (95% CI, 1.326-2.869), 1.024 (95% CI, 1.002-1.046), 1.064 (95% CI, 1.024-1.105), 1.058 (95% CI, 1.000-1.119), and 1.603 (95% CI, 1.092-2.353), respectively. CONCLUSION Drooling is common, even in mild-to-moderate PD patients. PD patients with non-TD subtype are at a higher risk of drooling. Male sex, motor severity, excessive daytime sleepiness, poor nighttime sleep, and constipation are also associated with drooling in patients with PD.
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Affiliation(s)
- C. J. Mao
- Department of Neurology and Suzhou Clinical Research Center of Neurological Disease; The Second Affiliated Hospital of Soochow University; Suzhou China
| | - Y. T. Xiong
- Department of Neurology and Suzhou Clinical Research Center of Neurological Disease; The Second Affiliated Hospital of Soochow University; Suzhou China
| | - F. Wang
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and Institute of Neuroscience; Soochow University; Suzhou China
| | - Y. P. Yang
- Department of Neurology and Suzhou Clinical Research Center of Neurological Disease; The Second Affiliated Hospital of Soochow University; Suzhou China
| | - W. Yuan
- Department of Neurology and Suzhou Clinical Research Center of Neurological Disease; The Second Affiliated Hospital of Soochow University; Suzhou China
| | - C. Zhu
- Department of Neurology and Suzhou Clinical Research Center of Neurological Disease; The Second Affiliated Hospital of Soochow University; Suzhou China
| | - J. Chen
- Department of Neurology and Suzhou Clinical Research Center of Neurological Disease; The Second Affiliated Hospital of Soochow University; Suzhou China
| | - C. F. Liu
- Department of Neurology and Suzhou Clinical Research Center of Neurological Disease; The Second Affiliated Hospital of Soochow University; Suzhou China
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and Institute of Neuroscience; Soochow University; Suzhou China
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Sun JC, Yang HS, Shi JG, Yuan W, Xu XM, Shi GD, Jia LS. Morphometric Analysis of the Uncinate Process as a Landmark for Anterior Controllable Antedisplacement and Fusion Surgery: A Study of Radiologic Anatomy. World Neurosurg 2018; 113:e101-e107. [DOI: 10.1016/j.wneu.2018.01.181] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2017] [Revised: 01/24/2018] [Accepted: 01/25/2018] [Indexed: 11/16/2022]
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Zhang KS, Liu Z, Wang T, Wang J, Su J, Shi F, Wang RH, Yuan W, Li Y. [Occurrence of radiation-induced injury in vagina after radical radiotherapy of cervical cancer and its affecting factors]. Zhonghua Fu Chan Ke Za Zhi 2018; 53:257-262. [PMID: 29747271 DOI: 10.3760/cma.j.issn.0529-567x.2018.04.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the occurrence and degree of radiation-induced injury in vagina after radical radiotherapy of cervical cancer. Methods: A total of 282 cases of patients with cervical cancer were collected from November 2016 to September 2017. All of the above patients underwent radical radiotherapy from 2008 to 2017 in the First Affiliated Hospital of Xi'an Jiaotong University. The patients' International Federation of Gynecology and Obstetrics (FIGO) staging (2009) , brachytherapy dose, whether receive synchronous chemotherapy or not, age and body mass index (BMI) for the occurrence and severity of vaginal radiation injury at different time periods were analyzed by cross-sectional survey method. The single factor would be analyzed by the method of Chi-square test and the multiple factors would be analyzed by logistic regression method to checkout. Results: Of the 282 patients, the incidence of radiation-injury in vaginal was 84.4% (238/282) , with the incidence rate of degree Ⅰ,Ⅱ and Ⅲ radiation injury were respectively 50.7% (143/282), 29.8% (84/282) and 3.9% (11/282; χ(2)=153.375, P<0.05) , and there was no degree Ⅳ. Until the end of the follow-up time, the incidence of radiation-induced injury in vaginal after completing the treatment within 1 year, 1-2 years,>2-<5 years and ≥5 years were respectively 80.0% (24/30) , 87.2% (102/117) , 88.2% (60/68) and 77.6% (52/67; χ(2)=4.231, P=0.238) . There were 30 cases be followed within 1 year after treatment, the incidence rate of degreeⅠ,Ⅱ and Ⅲ of radiation injury in vagina was 60.0% (18/30) , 20.0% (6/30) and 0, respectively (χ(2)=28.636, P<0.05). There were 117 cases be followed between 1-2 years after treatment, the incidence rate of degreeⅠ,Ⅱ and Ⅲ vaginal radiation-induced injury were 54.7% (64/117) , 29.9% (35/117) and 2.6% (3/117) , respectively (χ(2)=77.198, P<0.05) . There were 68 cases be followed between >2-<5 years after treatment, the incidence rate of degree Ⅰ,Ⅱ and Ⅲ vaginal radiation-induced injury were 51.5% (35/68) ,33.8% (23/68) and 2.9% (2/68) , respectively (χ(2)=39.525, P<0.05) . There were 67 cases be followed ≥5 years after treatment, the incidence rate of degree Ⅰ,Ⅱ and Ⅲ vaginal radiation injury were 38.8% (26/67) , 29.9% (20/67) and 9.0% (6/67) , respectively (χ(2)=16.395, P<0.05) . The single-factor analysis result indicated that the brachytherapy dose had an obvious effect on vaginal radiation-induced injury (χ(2)=5.344, P=0.021) ; however, other factors, such as age, BMI, FIGO stages and synchronous chemotherapy, had no obvious effect on vaginal radiation-induced injury (all P>0.05) . The multifactor analysis indicated that the brachytherapy dose was an independent factor affecting the occurrence of vaginal radiation-induced injury (P=0.043) . Conclusion: After the radical radiotherapy of cervical cancer, the vaginal radiation-induced injury is associated with the dose of brachytherapy.
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Affiliation(s)
- K S Zhang
- Department of Radiotherapy Oncology, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
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Harischandra H, Yuan W, Loghry HJ, Zamanian M, Kimber MJ. Profiling extracellular vesicle release by the filarial nematode Brugia malayi reveals sex-specific differences in cargo and a sensitivity to ivermectin. PLoS Negl Trop Dis 2018; 12:e0006438. [PMID: 29659599 PMCID: PMC5919703 DOI: 10.1371/journal.pntd.0006438] [Citation(s) in RCA: 72] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2018] [Revised: 04/26/2018] [Accepted: 04/10/2018] [Indexed: 12/19/2022] Open
Abstract
The filarial nematode Brugia malayi is an etiological agent of Lymphatic Filariasis. The capability of B. malayi and other parasitic nematodes to modulate host biology is recognized but the mechanisms by which such manipulation occurs are obscure. An emerging paradigm is the release of parasite-derived extracellular vesicles (EV) containing bioactive proteins and small RNA species that allow secretion of parasite effector molecules and their potential trafficking to host tissues. We have previously described EV release from the infectious L3 stage B. malayi and here we profile vesicle release across all intra-mammalian life cycle stages (microfilariae, L3, L4, adult male and female worms). Nanoparticle Tracking Analysis was used to quantify and size EVs revealing discrete vesicle populations and indicating a secretory process that is conserved across the life cycle. Brugia EVs are internalized by murine macrophages with no preference for life stage suggesting a uniform mechanism for effector molecule trafficking. Further, the use of chemical uptake inhibitors suggests all life stage EVs are internalized by phagocytosis. Proteomic profiling of adult male and female EVs using nano-scale LC-MS/MS described quantitative and qualitative differences in the adult EV proteome, helping define the biogenesis of Brugia EVs and revealing sexual dimorphic characteristics in immunomodulatory cargo. Finally, ivermectin was found to rapidly inhibit EV release by all Brugia life stages. Further this drug effect was also observed in the related filarial nematode, the canine heartworm Dirofilaria immitis but not in an ivermectin-unresponsive field isolate of that parasite, highlighting a potential mechanism of action for this drug and suggesting new screening platforms for anti-filarial drug development.
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Affiliation(s)
- Hiruni Harischandra
- Department of Biomedical Sciences, College of Veterinary Medicine, Iowa State University, Ames, Iowa, United States of America
| | - Wang Yuan
- Department of Biomedical Sciences, College of Veterinary Medicine, Iowa State University, Ames, Iowa, United States of America
| | - Hannah J. Loghry
- Department of Biomedical Sciences, College of Veterinary Medicine, Iowa State University, Ames, Iowa, United States of America
| | - Mostafa Zamanian
- Department of Pathobiological Sciences, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, Wisconsin, United States of America
| | - Michael J. Kimber
- Department of Biomedical Sciences, College of Veterinary Medicine, Iowa State University, Ames, Iowa, United States of America
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113
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Shenoy TR, Boysen G, Wang MY, Xu QZ, Guo W, Koh FM, Wang C, Zhang LZ, Wang Y, Gil V, Aziz S, Christova R, Rodrigues DN, Crespo M, Rescigno P, Tunariu N, Riisnaes R, Zafeiriou Z, Flohr P, Yuan W, Knight E, Swain A, Ramalho-Santos M, Xu DY, de Bono J, Wu H. CHD1 loss sensitizes prostate cancer to DNA damaging therapy by promoting error-prone double-strand break repair. Ann Oncol 2018; 28:1495-1507. [PMID: 28383660 DOI: 10.1093/annonc/mdx165] [Citation(s) in RCA: 77] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2017] [Indexed: 01/08/2023] Open
Abstract
Background Deletion of the chromatin remodeler chromodomain helicase DNA-binding protein 1 (CHD1) is a common genomic alteration found in human prostate cancers (PCas). CHD1 loss represents a distinct PCa subtype characterized by SPOP mutation and higher genomic instability. However, the role of CHD1 in PCa development in vivo and its clinical utility remain unclear. Patients and methods To study the role of CHD1 in PCa development and its loss in clinical management, we generated a genetically engineered mouse model with prostate-specific deletion of murine Chd1 as well as isogenic CHD1 wild-type and homozygous deleted human benign and PCa lines. We also developed patient-derived organoid cultures and screened patients with metastatic PCa for CHD1 loss. Results We demonstrate that CHD1 loss sensitizes cells to DNA damage and causes a synthetic lethal response to DNA damaging therapy in vitro, in vivo, ex vivo, in patient-derived organoid cultures and in a patient with metastatic PCa. Mechanistically, CHD1 regulates 53BP1 stability and CHD1 loss leads to decreased error-free homologous recombination (HR) repair, which is compensated by increased error-prone non-homologous end joining (NHEJ) repair for DNA double-strand break (DSB) repair. Conclusions Our study provides the first in vivo and in patient evidence supporting the role of CHD1 in DSB repair and in response to DNA damaging therapy. We uncover mechanistic insights that CHD1 modulates the choice between HR and NHEJ DSB repair and suggest that CHD1 loss may contribute to the genomic instability seen in this subset of PCas.
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Affiliation(s)
- T R Shenoy
- Department of Molecular and Medical Pharmacology, University of California, Los Angeles, USA
| | - G Boysen
- The Institute of Cancer Research, London, UK.,Prostate Cancer Targeted Therapy Group and Drug Development Unit, The Royal Marsden NHS Foundation Trust, London, UK
| | - M Y Wang
- The MOE Key Laboratory of Cell Proliferation and Differentiation, School of Life Sciences, Peking-Tsinghua Center for Life Sciences, Peking University, Beijing, China
| | - Q Z Xu
- The MOE Key Laboratory of Cell Proliferation and Differentiation, School of Life Sciences, Peking-Tsinghua Center for Life Sciences, Peking University, Beijing, China
| | - W Guo
- The MOE Key Laboratory of Cell Proliferation and Differentiation, School of Life Sciences, Peking-Tsinghua Center for Life Sciences, Peking University, Beijing, China
| | - F M Koh
- Eli and Edythe Broad Center of Regeneration Medicine and Stem Cell Research and Center for Reproductive Sciences, Department of Obstetrics, Gynecology and Reproductive Sciences, University of California, San Francisco, USA
| | - C Wang
- Department of Molecular and Medical Pharmacology, University of California, Los Angeles, USA
| | - L Z Zhang
- The MOE Key Laboratory of Cell Proliferation and Differentiation, School of Life Sciences, Peking-Tsinghua Center for Life Sciences, Peking University, Beijing, China
| | - Y Wang
- Department of Molecular and Medical Pharmacology, University of California, Los Angeles, USA
| | - V Gil
- The Institute of Cancer Research, London, UK
| | - S Aziz
- The Institute of Cancer Research, London, UK
| | - R Christova
- The Institute of Cancer Research, London, UK
| | - D N Rodrigues
- The Institute of Cancer Research, London, UK.,Prostate Cancer Targeted Therapy Group and Drug Development Unit, The Royal Marsden NHS Foundation Trust, London, UK
| | - M Crespo
- The Institute of Cancer Research, London, UK.,Prostate Cancer Targeted Therapy Group and Drug Development Unit, The Royal Marsden NHS Foundation Trust, London, UK
| | - P Rescigno
- Prostate Cancer Targeted Therapy Group and Drug Development Unit, The Royal Marsden NHS Foundation Trust, London, UK
| | - N Tunariu
- Prostate Cancer Targeted Therapy Group and Drug Development Unit, The Royal Marsden NHS Foundation Trust, London, UK
| | - R Riisnaes
- The Institute of Cancer Research, London, UK.,Prostate Cancer Targeted Therapy Group and Drug Development Unit, The Royal Marsden NHS Foundation Trust, London, UK
| | - Z Zafeiriou
- Prostate Cancer Targeted Therapy Group and Drug Development Unit, The Royal Marsden NHS Foundation Trust, London, UK
| | - P Flohr
- The Institute of Cancer Research, London, UK.,Prostate Cancer Targeted Therapy Group and Drug Development Unit, The Royal Marsden NHS Foundation Trust, London, UK
| | - W Yuan
- The Institute of Cancer Research, London, UK
| | - E Knight
- The Institute of Cancer Research, London, UK
| | - A Swain
- The Institute of Cancer Research, London, UK
| | - M Ramalho-Santos
- Eli and Edythe Broad Center of Regeneration Medicine and Stem Cell Research and Center for Reproductive Sciences, Department of Obstetrics, Gynecology and Reproductive Sciences, University of California, San Francisco, USA
| | - D Y Xu
- The MOE Key Laboratory of Cell Proliferation and Differentiation, School of Life Sciences, Peking-Tsinghua Center for Life Sciences, Peking University, Beijing, China
| | - J de Bono
- The Institute of Cancer Research, London, UK.,Prostate Cancer Targeted Therapy Group and Drug Development Unit, The Royal Marsden NHS Foundation Trust, London, UK
| | - H Wu
- Department of Molecular and Medical Pharmacology, University of California, Los Angeles, USA.,The MOE Key Laboratory of Cell Proliferation and Differentiation, School of Life Sciences, Peking-Tsinghua Center for Life Sciences, Peking University, Beijing, China
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Xiaoyu H, Yiru Y, Shuisheng S, Keyan C, Zixing Y, Shanglin C, Yuan W, Dongming C, Wangliang Z, Xudong B, Jie M. The mTOR Pathway Regulates PKM2 to Affect Glycolysis in Esophageal Squamous Cell Carcinoma. Technol Cancer Res Treat 2018; 17:1533033818780063. [PMID: 29916308 PMCID: PMC6024499 DOI: 10.1177/1533033818780063] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2017] [Revised: 02/05/2018] [Accepted: 04/23/2018] [Indexed: 12/18/2022] Open
Abstract
OBJECTIVES Esophageal squamous cell carcinoma is a highly prevalent cancer withpoor survival rate and prognosis. Increasing evidence suggests an important role for metabolic regulation in treating esophageal squamous cell carcinoma, but the underlying mechanism remains unclear. The pyruvate kinase M2 isoform is a key enzyme in the energy production process, and the upregulation of pyruvate kinase M2 isoform also plays a crucial role in gene transcription and tumorigenesis. The mammalian target of rapamycin pathway regulates an array of cellular functions, including protein synthesis, metabolism, and cell proliferation. The pyruvate kinase M2 isoform and mammalian target of rapamycin pathways both affect metabolism in cancers, and evidence also suggests that the mammalian target of rapamycin downstream transcription factor hypoxia-inducible factor-1α regulates pyruvate kinase M2 isoform. We therefore investigated the regulatory mechanism among pyruvate kinase M2 isoform, mammalian target of rapamycin, and aerobic glycolysis in esophageal squamous cell carcinoma, hoping to prove that mammalian target of rapamycin pathway regulates pyruvate kinase M2 isoform to affect glycolysis in esophageal squamous cell carcinoma. METHODS Immunohistochemical staining was used to compare pyruvate kinase M2 isoform and phospho-mammalian target of rapamycin expression in 30 human pathological esophageal squamous cell carcinoma sections and 30 nontumoral esophageal tissues. Short hairpin RNA was used to inhibit pyruvate kinase M2 isoform and activate mammalian target of rapamycin, after which we monitored changes in glucose consumption and lactate production. Finally, we determined the expression of pyruvate kinase M2 isoform and the mammalian target of rapamycin downstream transcription factor hypoxia-inducible factor-1α, as well as glucose consumption and lactate production, following the modification of mammalian target of rapamycin expression. RESULTS Immunohistochemical staining showed that both phospho-mammalian target of rapamycin and pyruvate kinase M2 isoform expression were higher in esophageal squamous cell carcinoma than in nontumor tissues. Glucose consumption and lactate production measurements demonstrated that altering mammalian target of rapamycin and pyruvate kinase M2 isoform levels caused corresponding changes in glycolysis in esophageal squamous cell carcinoma cells. When mammalian target of rapamycin was activated or inhibited, expression of pyruvate kinase M2 isoform and hypoxia-inducible factor-1α as well as glycolysis were altered, indicating that mammalian target of rapamycin regulates pyruvate kinase M2 isoform via the downstream transcription factor hypoxia-inducible factor-1α, thereby affecting glycolysis in esophageal squamous cell carcinoma. CONCLUSION Mammalian target of rapamycin pathway promotes aerobic glycolysis in esophageal squamous cell carcinoma by upregulating pyruvate kinase M2 isoform. Both proteins can serve as molecular targets for novel therapeutic strategies.
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Affiliation(s)
- He Xiaoyu
- Cardiothoracic Surgery, The Second Hospital of Shanxi Medical University, Taiyuan, China
| | - Yin Yiru
- Translational Medicine Research Center, Key Laboratory of Cellular Physiology, Ministry of Education, Shanxi Medical University, Taiyuan, China
| | - Shi Shuisheng
- Endoscopy Center, The Second Hospital of Shanxi Medical University, Taiyuan, China
| | - Cheng Keyan
- Gynecology and Obstetrics, The Second Hospital of Shanxi Medical University, Taiyuan, China
| | - Yan Zixing
- Cardiothoracic Surgery, The Second Hospital of Shanxi Medical University, Taiyuan, China
| | - Cheng Shanglin
- Cardiothoracic Surgery, The Second Hospital of Shanxi Medical University, Taiyuan, China
| | - Wang Yuan
- Endoscopy Center, The Second Hospital of Shanxi Medical University, Taiyuan, China
| | - Cheng Dongming
- Cardiothoracic Surgery, The Second Hospital of Shanxi Medical University, Taiyuan, China
| | - Zhang Wangliang
- Department of Pathology, The Second Hospital of Shanxi Medical University, Taiyuan, China
| | - Bai Xudong
- Cardiothoracic Surgery, Shanxi Academy of Medical Sciences, Shanxi Dayi Hospital, China
| | - Ma Jie
- Cardiothoracic Surgery, The Second Hospital of Shanxi Medical University, Taiyuan, China
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115
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Zhao Y, Wang J, Yao W, Cai Q, Wang Y, Yuan W, Gao S. Interventions for humeral shaft fractures: mixed treatment comparisons of clinical trials. Osteoporos Int 2017; 28:3229-3237. [PMID: 28780727 DOI: 10.1007/s00198-017-4174-1] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/05/2017] [Accepted: 07/21/2017] [Indexed: 01/29/2023]
Abstract
UNLABELLED We designed a study to compare the efficacy of five main therapeutic options, including external fixation, open reduction and plate osteosynthesis (ORPO), minimally invasive plate osteosynthesis (MIPO), dynamic compression plate (DCP), and intramedullary nail (IMN) in treating humeral shaft fractures. Our results indicated that MIPO and IMN were recommended as the optimal treatments for clinical use. PURPOSE Nowadays, five main therapeutic options are used in treating humeral shaft fractures: external fixation, open reduction and plate osteosynthesis (ORPO), minimally invasive plate osteosynthesis (MIPO), dynamic compression plate (DCP), and intramedullary nail (IMN). Aiming to provide reliable evidence for clinical selection, we designed a network meta-analysis (NMA) to evaluate the efficacy of these treatments. METHODS NMA was conducted on Bayesian framework with software R 3.3.2 and STATA 13.0. Nonunion rate, radial nerve palsy rate, union time, complication rate, and infection rate were considered as primary outcomes. Mean operation time was the secondary outcome. The outcomes were measured by odds ratio (OR) value and corresponding 95% credible intervals (CrIs) or mean difference (MD) with 95% CrIs. Surface under cumulative ranking curve (SUCRA) was calculated to show the ranking probability of each treatment. RESULTS Our results indicated that ORPO had a higher risk of radial nerve palsy than MIPO (OR = 2.83, 95% CrIs = 1.28-6.23), and DCP had a better performance in preventing complications than IMN (OR = 0.31, 95% CrIs = 0.11-0.84); no other significant difference were observed. According to the SUCRA results, MIPO had a high-ranking probability in almost all outcomes, while external fixation had lowest values in the majority of outcomes. CONCLUSIONS We recommended MIPO as the optimal treatment for humeral shaft fractures after taking all outcomes into consideration; IMN was also recommended for its relatively good performance, but its complication still needed to be noticed.
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Affiliation(s)
- Y Zhao
- Department of Bone and Soft Tumor, Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, No. 127 Dongming Road, Jinshui District, Zhengzhou, Henan, 450008, China
| | - J Wang
- Department of Bone and Soft Tumor, Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, No. 127 Dongming Road, Jinshui District, Zhengzhou, Henan, 450008, China
| | - W Yao
- Department of Bone and Soft Tumor, Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, No. 127 Dongming Road, Jinshui District, Zhengzhou, Henan, 450008, China
| | - Q Cai
- Department of Bone and Soft Tumor, Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, No. 127 Dongming Road, Jinshui District, Zhengzhou, Henan, 450008, China
| | - Y Wang
- Department of Orthopedics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, 450000, China
| | - W Yuan
- Department of Joint Surgery, Central Hospital of Zhoukou City, Zhoukou, Henan, 466000, China
| | - S Gao
- Department of Bone and Soft Tumor, Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, No. 127 Dongming Road, Jinshui District, Zhengzhou, Henan, 450008, China.
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116
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Hou Y, Liang L, Shi GD, Xu P, Xu GH, Shi JG, Yuan W. Comparing effects of cervical anterior approach and laminoplasty in surgical management of cervical ossification of posterior longitudinal ligament by a prospective nonrandomized controlled study. Orthop Traumatol Surg Res 2017; 103:733-740. [PMID: 28619269 DOI: 10.1016/j.otsr.2017.05.011] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/27/2016] [Revised: 03/11/2017] [Accepted: 05/16/2017] [Indexed: 02/02/2023]
Abstract
INTRODUCTION The laminoplasty has been the most widely used surgical method for OPLL. In recent years, increasing attention has been drawn to the anterior operative approaches for surgical treatment of cervical OPLL. However, which method is the optimum selection for therapy of cervical OPLL is still obscure. Therefore, we performed this prospective nonrandomized clinical study in patients with multilevel cervical myelopathy due to OPLL and compare the therapeutic efficiency of laminoplasty and anterior approach (cervical discectomy and/or cervical corpectomy) in the management of multilevel cervical OPLL. HYPOTHESIS There is no difference in clinical effects between anterior cervical spine surgery and laminoplasty in the treatment of multilevel cervical OPLL. MATERIAL AND METHODS A total of 150 consecutive patients with multilevels of cervical OPLL underwent anterior approaches (ACDF, ACCF and HDF) from July 2010 to June 2014, which were enrolled in this study. During the same period, one hundred and two patients receiving the laminoplasty were enrolled in the study. The clinical effects, alignment and range of motion (ROM) of cervical spine in patients of the anterior group and posterior group were assessed, respectively. The effects of high signals in T2 weighed MRI scans and percentage of spinal canal stenosis in these patients were also evaluated. Finally, postoperative complications regarding each group were analyzed. RESULTS Although significant differences in types of OPLL and preoperative sagittal alignment of cervical spine occurred in the two groups (P<0.05), clinical effects of the two groups were similar (P>0.05). The cervical curvature in laminoplasty group showed significant decrease at final follow-up (P<0.05). For ROM of cervical spine, no significant alteration was observed in both groups. The high T2 weighed signals and rate of spinal canal stenosis can influence clinical effects of both anterior group and laminoplasty group. In addition, significantly higher complication rate was observed in laminoplasty group compared with anterior group (P<0.05). DISCUSSION Both anterior and laminoplasty approaches can be considered effective and safe procedures in the treatment of the multilevel OPLL. However, the anterior approach with relatively lower incidence of postoperative complications is a better choice for cases with poor cervical curvature and serious spinal canal stenosis. TYPE OF STUDY AND LEVEL OF PROOF Level 3 nonrandomized, controlled clinical trials.
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Affiliation(s)
- Y Hou
- Department of Orthopaedic Surgery, Changzheng Hospital, No. 415, Feng Yang Road, 200003 Shanghai, China
| | - L Liang
- Department of Orthopaedic Surgery, Changzheng Hospital, No. 415, Feng Yang Road, 200003 Shanghai, China
| | - G D Shi
- Department of Orthopaedic Surgery, Changzheng Hospital, No. 415, Feng Yang Road, 200003 Shanghai, China
| | - P Xu
- Department of Orthopaedic Surgery, Changzheng Hospital, No. 415, Feng Yang Road, 200003 Shanghai, China
| | - G H Xu
- Department of Orthopaedic Surgery, Changzheng Hospital, No. 415, Feng Yang Road, 200003 Shanghai, China
| | - J G Shi
- Department of Orthopaedic Surgery, Changzheng Hospital, No. 415, Feng Yang Road, 200003 Shanghai, China.
| | - W Yuan
- Department of Orthopaedic Surgery, Changzheng Hospital, No. 415, Feng Yang Road, 200003 Shanghai, China
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Hu X, Shang J, Yuan W, Zhang S, Jiang Y, Zhao B, Duan Y, Xiao J, Zhao Z. Effects of paricalcitol on cardiovascular outcomes and renal function in patients with chronic kidney disease : A meta-analysis. Herz 2017; 43:518-528. [PMID: 28835982 DOI: 10.1007/s00059-017-4605-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2017] [Revised: 07/16/2017] [Accepted: 07/16/2017] [Indexed: 12/20/2022]
Abstract
BACKGROUND Paricalcitol, a selective activator of the vitamin D receptor (VDR), influences calcium and phosphorus homeostasis and bone metabolism. Whether paricalcitol reduces cardiovascular risk and protects renal function remains unclear. To systematically evaluate this in patients with chronic kidney disease (CKD), we conducted a meta-analysis of published randomized controlled trials (RCTs). METHODS We searched MEDLINE, Embase, the Cochrane Library, and reference lists for RCTs comparing paricalcitol with placebo in stage 2-5 CKD (including pre-dialysis and renal replacement patients). The Cochrane quality assessment method was used to evaluate study quality. Results were summarized as risk ratios (RRs) for dichotomous outcomes or mean differences (MD) for continuous outcomes. RESULTS We included 21 studies comprising 1894 patients. Compared to placebo, paricalcitol reduced the risk of cardiovascular events (RR 0.55; 95% CI 0.35-0.87; p = 0.01), but the RR of hypercalcemia associated with paricalcitol was 6.50 (95% CI 3.21-13.15; p < 0.00001). Paricalcitol cannot significantly change systolic blood pressure and cardiac structure. Although proteinuria reduction was achieved more frequently with paricalcitol (RR 1.51; 95% CI 1.25-1.82; p < 0.0001), it did not significantly reduce proteinuria level compared to placebo. Paricalcitol could not protect renal function to delay CKD progression, since it reduced the glomerular filtration rate (MD -3.15; 95% CI -4.35--1.96; p < 0.0001) and elevated serum creatinine (MD 0.93; 95% CI 0.10-0.68; p = 0.008). CONCLUSION Paricalcitol reduces the risk of cardiovascular events in CKD patients but increases the risk of hypercalcemia and cannot improve cardiac structure. Meanwhile, it cannot significantly reduce proteinuria level or protect renal function.
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Affiliation(s)
- X Hu
- Nephrology Hospital, The First Affiliated Hospital of Zhengzhou University, No. 1 of East Jianshe Road, 450052, Zhengzhou, Henan, China
| | - J Shang
- Nephrology Hospital, The First Affiliated Hospital of Zhengzhou University, No. 1 of East Jianshe Road, 450052, Zhengzhou, Henan, China
| | - W Yuan
- Nephrology Hospital, The First Affiliated Hospital of Zhengzhou University, No. 1 of East Jianshe Road, 450052, Zhengzhou, Henan, China
| | - S Zhang
- Nephrology Hospital, The First Affiliated Hospital of Zhengzhou University, No. 1 of East Jianshe Road, 450052, Zhengzhou, Henan, China
| | - Y Jiang
- Emergency Department, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - B Zhao
- Department of Nephrology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, China
| | - Y Duan
- Department of Pharmacy, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - J Xiao
- Nephrology Hospital, The First Affiliated Hospital of Zhengzhou University, No. 1 of East Jianshe Road, 450052, Zhengzhou, Henan, China
| | - Z Zhao
- Nephrology Hospital, The First Affiliated Hospital of Zhengzhou University, No. 1 of East Jianshe Road, 450052, Zhengzhou, Henan, China.
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Zhang H, Xu C, Liu Y, Yuan W. [MicroRNA-563 promotes the osteogenic differentiation of posterior longitudinal ligament cells by inhibiting SMURF1]. Zhonghua Wai Ke Za Zhi 2017; 55:203-207. [PMID: 28241722 DOI: 10.3760/cma.j.issn.0529-5815.2017.03.008] [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] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the function and mechanism of miR-563 in regulating the ossification of posterior longitudinal ligament (OPLL) cells. Methods: Posterior longitudinal ligament cells were isolated and cultured from both OPLL patients (n=6) and non-ossified ligament patients (PLL, n=4) who underwent spine surgery from March to June 2015 in First Department of Spinal Surgery, Changzheng Hospital Affiliated to Second Military Medical University. The expression levels of miR-563 in OPLL and PLL groups were analyzed using real-time PCR. MicroRNA mimics were utilized to over express miR-563, and microRNA inhibitors were designed to knockdown its expression. Using the over expression and inhibition method, the level of Alizarin Red staining, alkaline phosphatase and ossification related genes in miR-563 were analyzed over expressed or inhibited and ossification induced ligament cells. After that the potential target of miR-563 was predicted using Targetscan and verified using dual-luciferase reporter assay. The results between the groups were compared by t test. Results: The expression level of miR-563 was significantly higher in OPLL than PLL groups (8.53±0.84 vs. 1.00±0.12, t'=21.629, P=0.000). The over expression of miR-563 resulted in higher level of alizarin red staining (2.52±0.25 vs.1.00±0.14), alkaline phosphatase activities (3.11±0.55 vs.1.00±0.11) and ossification related genes (RUNX2: 3.25±0.55 vs.1.00±0.10; IBSP: 2.35±0.32 vs. 1.00±0.14; t: 7.43 to 10.99, all P=0.000), while the inhibition resulted in lower level (alizarin red staining: 0.52±0.21 vs. 1.00±0.12; alkaline phosphatase activities: 0.41±0.12 vs. 1.00±0.09; RUNX2: 0.35±0.13 vs. 1.00±0.12; IBSP: 0.55±0.12 vs.1.00±0.11; t: 4.36 to 8.45, all P<0.05). Combining the prediction results of Targetscan and expression profiles between OPLL and PLL, SMURF1 was found as a potential target of miR-563, and dual-luciferase reporter assay also identified their relationship. By over expression, the expression level of SMURF1 was significantly decreased (0.25±0.06 vs.1.00±0.10, t=-12.862, P=0.000), which again verified the hypothesis. Conclusion: miRNA-563 significantly promotes the osteogenic differentiation of posterior longitudinal ligament cells in vitro, and the mechanism of which is possibly through down regulating SMURF1.
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Affiliation(s)
- H Zhang
- First Department of Spinal Surgery, Changzheng Hospital Affiliated to Second Military Medical University, Shanghai 200003, China
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Yuan W, Zhou H, Lok JB, Lei W, He S, Gasser RB, Zhou R, Fang R, Zhou Y, Zhao J, Hu M. Functional genomic exploration reveals that Ss-RIOK-1 is essential for the development and survival of Strongyloides stercoralis larvae. Int J Parasitol 2017; 47:933-940. [PMID: 28780152 DOI: 10.1016/j.ijpara.2017.06.005] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2017] [Revised: 05/15/2017] [Accepted: 06/13/2017] [Indexed: 11/25/2022]
Abstract
Protein kinase RIOK-1 is a non-ribosomal factor essential for rRNA cleavage and ribosome small subunit maturation. It is encoded in all eukaryotic organisms. The RIOK-1 encoding gene of Caenorhabditis elegans (Ce-riok-1) is expressed in the neuronal and reproductive systems in larvae and adults of this free-living nematode, and it supports larval growth and development of the adult gonad. In spite of its recognised roles in model organisms such as C. elegans, little is known about the function of this molecule in parasitic nematodes. In a previous study, we characterised the structure, transcriptional profiles and in vivo transcriptional expression patterns of the Ss-riok-1 of human and canine parasitic nematode Strongyloides stercoralis. Here, we extend previous work to undertake functional studies, using transgenesis to assess the roles of Ss-RIOK-1 in the development of S. stercoralis. The results revealed that recombinant Ss-RIOK-1 with D282A mutation at its catalytic site lost its kinase phosphorylation activity in vitro. Both wild-type and mutant Ss-RIOK-1s were expressed in the cytoplasm of neurons and some hypodermal cells in the wild-type strain (UPD) of S. stercoralis. Larvae expressing the dominant negative mutant Ss-RIOK-1 that lost the catalytic activity had a decreased mobility and a severe defect in development to the infective L3 stage. Our findings demonstrated that Ss-RIOK-1 is essential for the development and survival of free-living larvae of S. stercoralis, and that catalytic activity is essential for its function in the parasitic nematode.
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Affiliation(s)
- Wang Yuan
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Huan Zhou
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - James B Lok
- Department of Pathobiology, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, PA, United States
| | - Weiqiang Lei
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Siyuan He
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Robin B Gasser
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China; Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Parkville, Victoria, Australia
| | - Rui Zhou
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Rui Fang
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Yanqin Zhou
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Junlong Zhao
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Min Hu
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China.
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Li B, Li XY, Zhong W, Shao C, Wang ZQ, Yuan W, Yan JC. [Impact of CD137-CD137L signaling mediated exocytosis of autophagosome within vascular smooth muscle cells on the formation of atherosclerotic calcification]. Zhonghua Xin Xue Guan Bing Za Zhi 2017; 45:49-56. [PMID: 28100346 DOI: 10.3760/cma.j.issn.0253-3758.2017.01.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore whether CD137-CD137L signaling mediated exocytosis of autophagosome within vascular smooth muscle cells (VSMCs) could influence the formation of atherosclerotic calcification. Methods: Fifteen 8-week-old male ApoE(-/-)(C57BL/6J-KO) mice fed with high fat diet for 5 weeks were randomly divided into three groups by using stochastic indicator method as follows: control group, n=5; agonist-CD137 group: agonist-CD137 antibody 200 μg/2 weeks for 4 weeks, ip, n=5; anti-CD137 group: 200 μg anti-CD137 antibody+ 200 μg agonist-CD137 antibody/2 weeks for 4 weeks, ip, n=5. Von Kossa staining was applied to observe the calcification of the thoracic aortic atherosclerotic plaque in each group. Immunohistochemistry was used to detect the expression of LC3 and Beclin1 which were the autophage markers of early-to-mid stage; Western blot was adopted to quantify protein level of microtubule-associated proteins 1 light chain 3B(LC3B) and mammalian ortholog of the yeast autophagy-related gene 6 (Beclin1). Transmission electron microscope (TME) was used to observe the formation of autophagosome in plaque. C57BL/6J mouse VSMCs were cultured by using tissue piece inoculation method. Groups of in vitro studies were the same as in vivo study: control group, agonist-CD137 group, anti-CD137 group, the agonist-CD137 groups was treated with agonist-CD137 antibody (10 μg/ml) and anti-CD137 group was treated with anti-CD137 antibody (10 μg/ml) for 30 minutes, followed by agonist-CD137 antibody (10 μg/ml). Von Kossa staining and osteogenesis phenotypic alkaline phosphatase (ALP) activity detection were adopted to observe calcification in VSMCs. Autophagosomes were separated from the supernatant of the agonist-CD137 group with density gradient centrifugation method. VSMCs were divided into two groups: positive group (containing complete medium with above autophagosomes to a final concentration 15 μg/ml) and negative group (only complete medium) after being pretreated with mixed inflammatory cytokines (IL-1β、IFN-γ and TNF-α, final concentration was 25 ng/ml respectively) for 24 hours and calcium deposition and osteogenesis phenotypic marker bone morphogenetic protein 2(BMP2) were then detected. Results: (1) Compared with the control group, activation of the CD137-CD137L signal significantly increased the formation of calcification area in thoracic aortic atherosclerotic plaque of ApoE(-/-) mice((1.82±0.15)×10(4) μm(2) vs. (0.34±0.08)×10(4) μm(2,) P<0.01), this effect was significantly attenuated by inhibiting this signal ((0.83±0.30)×10(4) μm(2) vs. (1.82±0.15)×10(4) μm(2,) P<0.05); positive autophagy makers LC3B and Beclin1 were detected in both agonist-CD137 group and anti-CD137 groups and the expression of LC3B and Beclin1 was substantially higher in anti-CD137 group. Western blot analysis indicated that the expression of LC3B and Beclin1 in agonist-CD137 group was significantly upregulated compared with the control group (0.17±0.01 vs. 0.03±0.08, P<0.05, and 0.12±0.02 vs. 0.06±0.02, P<0.05), which could be significantly downregulated in anti-CD137 group (0.28±0.09 vs. 0.17±0.01, P<0.05 and 0.17±0.02 vs. 0.12±0.02, P<0.05). TME showed that the number (QTY /HP) of autophagosome of agonist-CD137 group and anti-CD137 group in plaque were both increased (14.67±2.52 vs. 3.67±1.53, P<0.01, and 15.33±2.08 vs. 3.67±1.53, P<0.01), while in the agonist-CD137 group, the number of extracellular autophagosome within thoracic aortic atherosclerotic plaque of ApoE(-/-) mice increased more substantially (5.33±1.53 vs. 1.33±0.58, P<0.01). (2) In vitro study showed that activating CD137-CD137L signal could promote calcium deposition in extracellular matrix and the activity of osteogenesis phenotypic ALP((6.73±0.02) μmol/mg protein vs. (1.07±0.03) μmol/mg protein, P<0.05), and ((563.20±0.72) U/mg protein vs. (117.50±0.64) U/mg protein, P<0.05), while these effects were significantly blunted in anti-CD137 group ((1.94±0.05) μmol/mg protein vs. (6.73±0.02) μmol/mg protein, P<0.05, and (236.10±0.14) U/mg protein vs. (563.20±0.72) U/mg protein, P<0.05). TME showed that the number of intracellular autophagosome in agonist-CD137 group and anti-CD137 group was both significantly higher than in control group ((21.65±1.34) μg/ml vs. (8.32±1.58) μg/ml, P<0.01, and (15.42±1.65) μg/ml vs. (8.32±1.58) μg/ml, P<0.05). After the density gradient centrifugation, exocytotic autophagosome in the medium of agonist-CD137 group was markedly higher than in control group ((14.67±1.53) μg/ml vs. (2.33±1.15) μg/ml, P<0.01). (3) Compared with the control group, autophagosomes isolated from culture supernatant (final concentration: 15 μg/ml) could significantly stimulate calcium deposition((2.30±0.10) μmol/mg protein vs. (0.15±0.40) μmol/mg protein, P<0.05) and enhance the expression of bone morphogenetic protein 2 (2.10±0.04 vs. 0.30±0.01, P<0.05). Conclusion: CD137-CD137L signaling could mediate exocytosis of autophagosome within VSMCs, thus influence the formation of atherosclerotic calcification.
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Affiliation(s)
- B Li
- Department of Cardiology, Affiliated Hospital of Jiangsu University, Zhenjiang 212001, China
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Wang Y, Yuan W, Ma X, Ma J. [Expression of microRNA-152 in colorectal cancer and its relationship with prognosis]. Zhonghua Zhong Liu Za Zhi 2017; 38:763-766. [PMID: 27784461 DOI: 10.3760/cma.j.issn.0253-3766.2016.10.010] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: The aim of this study was to detect the expression level of miR-152 in colorectal cancer (CRC) and adjacent tissues, and to explore its relationship with clinicopathological features and potential to be a prognosis biomarker in CRC patients. Methods: The expression of miR-152 was detected by real-time quantitative PCR in 202 colorectal cancer and adjacent colorectal tissues. Cox proportional hazard model was used to analyze the relationship between the expression level of miR-152 and prognosis of colorectal cancer patients. Results: The expression of miR-152 in colorectal cancer and adjacent colorectal tissues was 2.109±0.217 and 15.860±6.647, respectively, with a significant difference between the two groups (P<0.001). Comparing colorectal cancer with lymph node metastasis to those without lymph node metastasis, the expression of miR-152 (2.582±0.344 vs. 1.640±0.258) was significantly increased (P=0.001). In addition, the expression of miR-152 in CRC according to TNM staging was 1.640±0.258 in stage Ⅰ/Ⅱ, 2.187±0.361 in stage Ⅲ and 4.403±0.877 in stage Ⅳ, showing a gradual increase depending on clinical staging (P<0.05). Univariate Cox regression analysis indicated that lymph node metastasis, degree of differentiation, TNM stage and miR-152 expression level were related to the postoperative survival of colorectal cancer patients (P<0.05). Multivariate Cox regression analysis showed that degree of differentiation and TNM stage were independent factors affecting the survival of colorectal cancer patients (P<0.001). The results of survival analysis indicated that high expression level of miR-152 was related to a poor prognosis of CRC cancer. Conclusions: The expression level of miR-152 is reduced in colorectal cancer comparing with adjacent colorectal tissues. High expression level of miR-152 is associated with lymph node metastasis and TNM stage of CRC. MiR-152 is a potential marker for prognosis in colorectal cancer.
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Affiliation(s)
- Y Wang
- Department of VIP, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - W Yuan
- State Key Laboratory of Molecular Oncology, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - X Ma
- State Key Laboratory of Molecular Oncology, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - J Ma
- State Key Laboratory of Molecular Oncology, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
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Labocha MK, Yuan W, Aleman-Meza B, Zhong W. A strategy to apply quantitative epistasis analysis on developmental traits. BMC Genet 2017; 18:42. [PMID: 28506208 PMCID: PMC5433158 DOI: 10.1186/s12863-017-0508-4] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2017] [Accepted: 05/08/2017] [Indexed: 11/25/2022] Open
Abstract
Background Genetic interactions are keys to understand complex traits and evolution. Epistasis analysis is an effective method to map genetic interactions. Large-scale quantitative epistasis analysis has been well established for single cells. However, there is a substantial lack of such studies in multicellular organisms and their complex phenotypes such as development. Here we present a method to extend quantitative epistasis analysis to developmental traits. Methods In the nematode Caenorhabditis elegans, we applied RNA interference on mutants to inactivate two genes, used an imaging system to quantitatively measure phenotypes, and developed a set of statistical methods to extract genetic interactions from phenotypic measurement. Results Using two different C. elegans developmental phenotypes, body length and sex ratio, as examples, we showed that this method could accommodate various metazoan phenotypes with performances comparable to those methods in single cell growth studies. Comparing with qualitative observations, this method of quantitative epistasis enabled detection of new interactions involving subtle phenotypes. For example, several sex-ratio genes were found to interact with brc-1 and brd-1, the orthologs of the human breast cancer genes BRCA1 and BARD1, respectively. We confirmed the brc-1 interactions with the following genes in DNA damage response: C34F6.1, him-3 (ortholog of HORMAD1, HORMAD2), sdc-1, and set-2 (ortholog of SETD1A, SETD1B, KMT2C, KMT2D), validating the effectiveness of our method in detecting genetic interactions. Conclusions We developed a reliable, high-throughput method for quantitative epistasis analysis of developmental phenotypes. Electronic supplementary material The online version of this article (doi:10.1186/s12863-017-0508-4) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Marta K Labocha
- Department of BioSciences, Rice University, Houston, TX, 77005, USA.,Present address: Institute of Environmental Sciences, Jagiellonian University, Krakow, Poland
| | - Wang Yuan
- Department of BioSciences, Rice University, Houston, TX, 77005, USA
| | | | - Weiwei Zhong
- Department of BioSciences, Rice University, Houston, TX, 77005, USA.
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Zhang N, Yang Y, Lu H, Xiang Y, Huang X, Hu R, Chen Z, Yuan W, Peng R, Peng J, Ai H, Liu K. Spodoptera litura autophagy-related protein 1 interacts with autophagy-related protein 5 and enhances its degradation. Insect Mol Biol 2017; 26:190-203. [PMID: 27902874 DOI: 10.1111/imb.12284] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
It is known that the autophagy-related protein 1 (ATG1) plays critical roles in the regulation of autophagy in mammals and yeast, whereas the function of ATG1 in lepidopteran insects is not well elucidated. Here Spodoptera litura ATG1 (SlATG1) and its interactions with other ATG proteins were characterized. Alternative splicing of SlAtg1 produced at least four transcript variants. Over-expression and RNA interference knockdown of SlAtg1 demonstrated that SlATG1 enhanced autophagy. SlATG1A-Green fluorescent protein (GFP) tagged localized in the cytoplasm and formed some punctuate dots, which were colocalized with red fluorescent protein mCherry tagged Spodoptera exigua ATG5 (SeATG5). SlATG1A-GFP over-expression reduced the nuclear abundance of mCherry-SeATG5 but increased its cytoplasmic abundance. Pull-down, co-immunoprecipitation and bimolecular fluorescence complementation assays showed that SlATG1A bound to SeATG5 through the N-terminus of SlATG1A. The over-expression of FLAG epitope tagged SlATG1A significantly increased the accumulation of the cleaved GFP from GFP-SeATG5, suggesting the enhanced degradation of GFP-SeATG5. In addition, we confirmed that the interactions of SlATG1 with other autophagy-related proteins were conserved. These results provide the first evidence that ATG1 interacts with ATG5 and enhances its degradation in lepidopteran insect cells, which may have important physiological functions.
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Affiliation(s)
- N Zhang
- School of Life Sciences, Central China Normal University, Wuhan, China
| | - Y Yang
- School of Life Sciences, Central China Normal University, Wuhan, China
| | - H Lu
- School of Life Sciences, Central China Normal University, Wuhan, China
| | - Y Xiang
- School of Life Sciences, Central China Normal University, Wuhan, China
| | - X Huang
- School of Life Sciences, Central China Normal University, Wuhan, China
| | - R Hu
- School of Life Sciences, Central China Normal University, Wuhan, China
| | - Z Chen
- School of Life Sciences, Central China Normal University, Wuhan, China
| | - W Yuan
- School of Life Sciences, Central China Normal University, Wuhan, China
| | - R Peng
- School of Life Sciences, Central China Normal University, Wuhan, China
| | - J Peng
- School of Life Sciences, Central China Normal University, Wuhan, China
| | - H Ai
- School of Life Sciences, Central China Normal University, Wuhan, China
| | - K Liu
- School of Life Sciences, Central China Normal University, Wuhan, China
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Fan Y, Guo YR, Yuan W, Zhou Y, Holt MV, Wang T, Demeler B, Young NL, Zhong W, Tao YJ. Structure of a pentameric virion-associated fiber with a potential role in Orsay virus entry to host cells. PLoS Pathog 2017; 13:e1006231. [PMID: 28241071 PMCID: PMC5344674 DOI: 10.1371/journal.ppat.1006231] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2016] [Revised: 03/09/2017] [Accepted: 02/10/2017] [Indexed: 11/25/2022] Open
Abstract
Despite the wide use of Caenorhabditis elegans as a model organism, the first virus naturally infecting this organism was not discovered until six years ago. The Orsay virus and its related nematode viruses have a positive-sense RNA genome, encoding three proteins: CP, RdRP, and a novel δ protein that shares no homology with any other proteins. δ can be expressed either as a free δ or a CP-δ fusion protein by ribosomal frameshift, but the structure and function of both δ and CP-δ remain unknown. Using a combination of electron microscopy, X-ray crystallography, computational and biophysical analyses, here we show that the Orsay δ protein forms a ~420-Å long, pentameric fiber with an N-terminal α-helical bundle, a β-stranded filament in the middle, and a C-terminal head domain. The pentameric nature of the δ fiber has been independently confirmed by both mass spectrometry and analytical ultracentrifugation. Recombinant Orsay capsid containing CP-δ shows protruding long fibers with globular heads at the distal end. Mutant viruses with disrupted CP-δ fibers were generated by organism-based reverse genetics. These viruses were found to be either non-viable or with poor infectivity according to phenotypic and qRT-PCR analyses. Furthermore, addition of purified δ proteins to worm culture greatly reduced Orsay infectivity in a sequence-specific manner. Based on the structure resemblance between the Orsay CP-δ fiber and the fibers from reovirus and adenovirus, we propose that CP-δ functions as a cell attachment protein to mediate Orsay entry into worm intestine cells.
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Affiliation(s)
- Yanlin Fan
- Department of BioSciences, Rice University, MS-140, Houston, Texas, United States of America
| | - Yusong R. Guo
- Department of BioSciences, Rice University, MS-140, Houston, Texas, United States of America
| | - Wang Yuan
- Department of BioSciences, Rice University, MS-140, Houston, Texas, United States of America
| | - Ying Zhou
- Department of BioSciences, Rice University, MS-140, Houston, Texas, United States of America
| | - Matthew V. Holt
- Verna & Marrs McLean Department of Biochemistry & Molecular Biology, Baylor College of Medicine, One Baylor Plaza, Houston, TX, United States of America
| | - Tao Wang
- Verna & Marrs McLean Department of Biochemistry & Molecular Biology, Baylor College of Medicine, One Baylor Plaza, Houston, TX, United States of America
| | - Borries Demeler
- The University of Texas Health Science Center at San Antonio, Department of Biochemistry, MC 7760, 7703 Floyd Curl Drive, San Antonio, Texas, United States of America
| | - Nicolas L. Young
- Verna & Marrs McLean Department of Biochemistry & Molecular Biology, Baylor College of Medicine, One Baylor Plaza, Houston, TX, United States of America
- Department of Molecular and Cellular Biology, Baylor College of Medicine, One Baylor Plaza, Houston, TX, United States of America
| | - Weiwei Zhong
- Department of BioSciences, Rice University, MS-140, Houston, Texas, United States of America
| | - Yizhi J. Tao
- Department of BioSciences, Rice University, MS-140, Houston, Texas, United States of America
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Junchao Y, Zhen W, Yuan W, Liying X, Libin J, Yuanhong Z, Wei Z, Ruilin C, Lu Z. Anti- trachea inflammatory effects of diosgenin from Dioscorea nipponica through interactions with glucocorticoid receptor α. J Int Med Res 2016; 45:101-113. [PMID: 27913746 PMCID: PMC5536614 DOI: 10.1177/0300060516676724] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
Asthma is a heterogeneous disease characterized by symptoms of chronic inflammation and airway structural and functional changes. It affects about 300 million people worldwide and causes 250 000 deaths annually, but its symptoms can be greatly relieved by regular use of inhaled glucocorticoids (GCs). GCs exert their function through interacting with glucocorticoid receptors (GRs). Diosgenin is a naturally occurring steroidal saponin abundantly present in many medicinal plants, including Dioscorea nipponica, which shares a similar steroidal structure with GC. In this study, ovalbumin (OVA)-induced asthmatic mice and primary tracheal epithelial cells (TECs) were used as research models. ELISAs were applied to measure the secretion of TNF-α, IL-1β, and IL-6, while quantitative PCR and western blotting were applied to evaluate expression of GRs SLPI, TTP, GILZ, MKP-1, and NF-κB. Our data demonstrated that diosgenin suppressed the secretion of TNF-α, IL-1β, and IL-6 by enhancing the expression of GRs, SLPI, GILZ, and MKP-1, and inhibiting the expression of HSP70. These data provide some evidence on the molecular mechanism of diosgenin, which might facilitate its clinical applications.
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Affiliation(s)
- Yang Junchao
- 1 Department of Respiration, The First Affiliated Hospital of Zhejiang Chinese Medicine University, Hangzhou, Zhejiang, China
| | - Wang Zhen
- 1 Department of Respiration, The First Affiliated Hospital of Zhejiang Chinese Medicine University, Hangzhou, Zhejiang, China
| | - Wang Yuan
- 2 Department of Pulmonary Function, The First Affiliated Hospital of Zhejiang Chinese Medicine University, Hangzhou, Zhejiang, China
| | - Xu Liying
- 3 Department of Emergency, The First Affiliated Hospital of Zhejiang Chinese Medicine University, Hangzhou, Zhejiang, China
| | - Jiang Libin
- 1 Department of Respiration, The First Affiliated Hospital of Zhejiang Chinese Medicine University, Hangzhou, Zhejiang, China
| | - Zhu Yuanhong
- 1 Department of Respiration, The First Affiliated Hospital of Zhejiang Chinese Medicine University, Hangzhou, Zhejiang, China
| | - Zhao Wei
- 2 Department of Pulmonary Function, The First Affiliated Hospital of Zhejiang Chinese Medicine University, Hangzhou, Zhejiang, China
| | - Chen Ruilin
- 1 Department of Respiration, The First Affiliated Hospital of Zhejiang Chinese Medicine University, Hangzhou, Zhejiang, China
| | - Zhai Lu
- 4 Zhejiang Chinese Medicine University, Hangzhou, Zhejiang, China
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Zheng Y, Zhang H, Wang Y, Li X, Lu P, Dong F, Pang Y, Ma S, Cheng H, Hao S, Tang F, Yuan W, Zhang X, Cheng T. Loss of Dnmt3b accelerates MLL-AF9 leukemia progression. Leukemia 2016; 30:2373-2384. [PMID: 27133822 DOI: 10.1038/leu.2016.112] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2015] [Revised: 03/20/2016] [Accepted: 04/25/2016] [Indexed: 12/11/2022]
Abstract
Acute myeloid leukemia (AML) is a heterogeneous hematopoietic disorder with a poor prognosis. Abnormal DNA methylation is involved in the initiation and progression of AML. The de novo methyltransferases Dnmt3a and Dnmt3b are responsible for the generation of genomic methylation patterns. While DNMT3A is frequently mutated in hematological malignancies, DNMT3B is rarely mutated. Although it has been previously reported that Dnmt3b functions as a tumor suppressor in a mouse model of Myc-induced lymphomagenesis, its function in AML is yet to be determined. In this study, we demonstrated that deletion of Dnmt3b accelerated the progression of MLL-AF9 leukemia by increasing stemness and enhancing cell cycle progression. Gene profiling analysis revealed upregulation of the oncogenic gene set and downregulation of the cell differentiation gene set. Furthermore, loss of Dnmt3b was able to synergize with Dnmt3a deficiency in leukemia development. Taken together, these results demonstrate that Dnmt3b plays a tumor suppressive role in MLL-AF9 AML progression, thereby providing new insights into the roles of DNA methylation in leukemia development.
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Affiliation(s)
- Y Zheng
- State Key Laboratory of Experimental Hematology, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, China
| | - H Zhang
- State Key Laboratory of Experimental Hematology, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, China
| | - Y Wang
- State Key Laboratory of Experimental Hematology, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, China
| | - X Li
- Biodynamic Optical Imaging Center, College of Life Sciences, Peking University, Beijing, China
| | - P Lu
- State Key Laboratory of Experimental Hematology, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, China
| | - F Dong
- State Key Laboratory of Experimental Hematology, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, China
| | - Y Pang
- State Key Laboratory of Experimental Hematology, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, China
| | - S Ma
- State Key Laboratory of Experimental Hematology, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, China
| | - H Cheng
- State Key Laboratory of Experimental Hematology, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, China
| | - S Hao
- State Key Laboratory of Experimental Hematology, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, China
| | - F Tang
- Biodynamic Optical Imaging Center, College of Life Sciences, Peking University, Beijing, China
- Ministry of Education Key Laboratory of Cell Proliferation and Differentiation, Peking University, Beijing, China
| | - W Yuan
- State Key Laboratory of Experimental Hematology, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, China
- Department of Stem Cell and Regenerative Medicine, Peking Union Medical College, Tianjin, China
- Center for Stem Cell Medicine, Chinese Academy of Medical Sciences, Tianjin, China
| | - X Zhang
- State Key Laboratory of Experimental Hematology, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, China
- Department of Medicine, Loma Linda University, Loma Linda, CA, USA
- Department of Stem Cell and Regenerative Medicine, Peking Union Medical College, Tianjin, China
| | - T Cheng
- State Key Laboratory of Experimental Hematology, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, China
- Department of Stem Cell and Regenerative Medicine, Peking Union Medical College, Tianjin, China
- Center for Stem Cell Medicine, Chinese Academy of Medical Sciences, Tianjin, China
- Collaborative Innovation Center for Cancer Medicine, Tianjin, China
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Mehra N, Seed G, Lambros M, Sharp A, Fontes MS, Crespo M, Sumanasuriya S, Yuan W, Boysen G, Riisnaes R, Calcinotto A, Carreira S, Goodall J, Zafeiriou Z, Bianchini D, Morilla A, Morilla R, Alimonti A, de Bono J. Myeloid-derived suppressor cells (MDSCs) in metastatic castration-resistant prostate cancer (CRPC) patients (PTS). Ann Oncol 2016. [DOI: 10.1093/annonc/mdw372.41] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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129
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Yuliang W, Yuan W, Xuezhen W, He M, Qi Z, Jinbo C. A novel SPAST frameshift mutation in a Chinese family with hereditary spastic paraplegia. Neurol Sci 2016; 38:365-367. [PMID: 27629539 DOI: 10.1007/s10072-016-2712-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2016] [Accepted: 09/06/2016] [Indexed: 11/28/2022]
Affiliation(s)
- Wang Yuliang
- Department of Neurology, Binzhou Medical University Hospital, No. 661 Huanghe 2nd Road of Binzhou, Shandong, China
| | - Wang Yuan
- Department of Neurology, Binzhou Medical University Hospital, No. 661 Huanghe 2nd Road of Binzhou, Shandong, China
| | - Wang Xuezhen
- Department of Neurology, Binzhou Medical University Hospital, No. 661 Huanghe 2nd Road of Binzhou, Shandong, China
| | - Ma He
- Department of Neurology, Binzhou Medical University Hospital, No. 661 Huanghe 2nd Road of Binzhou, Shandong, China
| | - Zheng Qi
- Department of Neurology, Binzhou Medical University Hospital, No. 661 Huanghe 2nd Road of Binzhou, Shandong, China
| | - Chen Jinbo
- Department of Neurology, Binzhou Medical University Hospital, No. 661 Huanghe 2nd Road of Binzhou, Shandong, China.
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Dong W, Xian Y, Yuan W, Huifeng Z, Tao W, Zhiqiang L, Shan F, Ya F, Hongli W, Jinghuan W, Lei Q, Li Z, Hongyi Q. Catalpol stimulates VEGF production via the JAK2/STAT3 pathway to improve angiogenesis in rats' stroke model. J Ethnopharmacol 2016; 191:169-179. [PMID: 27301615 DOI: 10.1016/j.jep.2016.06.030] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [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: 01/21/2016] [Revised: 06/05/2016] [Accepted: 06/08/2016] [Indexed: 05/25/2023]
Abstract
ETHNOBOTANICAL RELEVANCE Catalpol is the main active component of the radix from Rehmannia glutinosa Libosch, which has pleiotropic protective effects in neurodegenerative diseases, ischemic stroke, metabolic disorders and others AIM Catalpol has been shown to have neuroprotective, neurorepair, and angiogenesis effects following ischemic brain injury. However, its molecular mechanisms are still poorly understood. In previous studies, the JAK2/STAT3 signaling pathway was found to play a role in neuroprotection and angiogenesis. This study investigated the role of catalpol in stimulating angiogenesis via the JAK2/STAT3 pathway after permanent focal cerebral ischemia (pMCAO). METHODS Rats were subjected to right middle cerebral artery occlusion through electrocoagulation and were treated with catalpol (5mg/kg), AG490 was also used to inhibit STAT3 phosphorylation (pSTAT3). RESULTS Following stroke, Catalpol improved the neuroethology deficit, increased the cerebral blood flow (CBF) of infarcted brain and upregulated EPO and EPOR. AG490 suppressed the phosphorylation of signal transducer and activator of transcription 3 (STAT3), ultimately inhibited VEGF mRNA expression, which reduced VEGF protein expression and inhibited stroke-induced angiogenesis. However, Catalpol enhanced stroke-induced STAT3 activation and subsequently restored STAT3 activity through the recovery of STAT3 binding to VEGF. Moreover, Catalpol reversed the effect of AG490 on STAT3 activation and nuclear translocation, restored the transcriptional activity of the VEGF promoter by recruiting STAT3 to the VEGF promoter, improved VEGF mRNA and protein expression, increased angiogenesis, reduced the difference in CBF between the infarcted and intact brain and ameliorated the neuroethology behaviors after stroke. CONCLUSION Catalpol affects neuroprotection and angiogenesis via the JAK2/STAT3 signaling pathway, which is mediated by STAT3 activation and VEGF expression. Catalpol may be used as a potential therapeutic drug for stroke.
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MESH Headings
- Angiogenesis Inducing Agents/pharmacology
- Animals
- Brain/drug effects
- Brain/enzymology
- Brain/pathology
- Brain/physiopathology
- Cerebral Arteries/drug effects
- Cerebral Arteries/enzymology
- Cerebral Arteries/pathology
- Cerebral Arteries/physiopathology
- Cerebrovascular Circulation/drug effects
- Disease Models, Animal
- Erythropoietin/metabolism
- Infarction, Middle Cerebral Artery/drug therapy
- Infarction, Middle Cerebral Artery/enzymology
- Infarction, Middle Cerebral Artery/pathology
- Infarction, Middle Cerebral Artery/physiopathology
- Iridoid Glucosides/pharmacology
- Janus Kinase 2/metabolism
- Male
- Neovascularization, Physiologic/drug effects
- Neuroprotective Agents/pharmacology
- Phosphorylation
- Promoter Regions, Genetic
- Protein Binding
- RNA, Messenger/genetics
- RNA, Messenger/metabolism
- Rats, Sprague-Dawley
- Receptors, Erythropoietin/metabolism
- STAT3 Transcription Factor/metabolism
- Signal Transduction/drug effects
- Time Factors
- Transcriptional Activation
- Up-Regulation
- Vascular Endothelial Growth Factor A/genetics
- Vascular Endothelial Growth Factor A/metabolism
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Affiliation(s)
- Wan Dong
- Department of Emergency, the First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Yang Xian
- Department of Pharmacy, The Seventh People's Hospital of Chengdu, Chengdu 610041, China
| | - Wang Yuan
- College of Pharmaceutical Sciences and Traditional Chinese Medicine, Southwest University, Chongqing 400715, China; Chongqing Engineering Research Center for Pharmacological Evaluation, Chongqing 400715, China; Engineering Research Center for Chongqing Pharmaceutical Process and Quality Control, Chongqing 400715, China
| | - Zhu Huifeng
- College of Pharmaceutical Sciences and Traditional Chinese Medicine, Southwest University, Chongqing 400715, China; Chongqing Engineering Research Center for Pharmacological Evaluation, Chongqing 400715, China; Engineering Research Center for Chongqing Pharmaceutical Process and Quality Control, Chongqing 400715, China.
| | - Wang Tao
- College of Pharmaceutical Sciences and Traditional Chinese Medicine, Southwest University, Chongqing 400715, China; Chongqing Engineering Research Center for Pharmacological Evaluation, Chongqing 400715, China; Engineering Research Center for Chongqing Pharmaceutical Process and Quality Control, Chongqing 400715, China
| | - Liu Zhiqiang
- Department of Pharmacy, The First People's Hospital of Neijiang, Neijiang 641000, China
| | - Feng Shan
- College of Pharmaceutical Sciences and Traditional Chinese Medicine, Southwest University, Chongqing 400715, China; Chongqing Engineering Research Center for Pharmacological Evaluation, Chongqing 400715, China; Engineering Research Center for Chongqing Pharmaceutical Process and Quality Control, Chongqing 400715, China
| | - Fu Ya
- College of Chemistry and Chemical Engineering, Chongqing University of Science & Technology, Chongqing 401331, China
| | - Wang Hongli
- College of Pharmaceutical Sciences and Traditional Chinese Medicine, Southwest University, Chongqing 400715, China; Chongqing Engineering Research Center for Pharmacological Evaluation, Chongqing 400715, China; Engineering Research Center for Chongqing Pharmaceutical Process and Quality Control, Chongqing 400715, China
| | - Wang Jinghuan
- College of Pharmaceutical Sciences and Traditional Chinese Medicine, Southwest University, Chongqing 400715, China; Chongqing Engineering Research Center for Pharmacological Evaluation, Chongqing 400715, China; Engineering Research Center for Chongqing Pharmaceutical Process and Quality Control, Chongqing 400715, China
| | - Qin Lei
- College of Pharmaceutical Sciences and Traditional Chinese Medicine, Southwest University, Chongqing 400715, China; Chongqing Engineering Research Center for Pharmacological Evaluation, Chongqing 400715, China; Engineering Research Center for Chongqing Pharmaceutical Process and Quality Control, Chongqing 400715, China
| | - Zou Li
- College of Pharmaceutical Sciences and Traditional Chinese Medicine, Southwest University, Chongqing 400715, China; Chongqing Engineering Research Center for Pharmacological Evaluation, Chongqing 400715, China; Engineering Research Center for Chongqing Pharmaceutical Process and Quality Control, Chongqing 400715, China
| | - Qi Hongyi
- College of Pharmaceutical Sciences and Traditional Chinese Medicine, Southwest University, Chongqing 400715, China; Chongqing Engineering Research Center for Pharmacological Evaluation, Chongqing 400715, China; Engineering Research Center for Chongqing Pharmaceutical Process and Quality Control, Chongqing 400715, China
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131
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Yuan W, Pengpeng Y, Leilei D. 688 Characteristics of unintentional and intentional child injuries from emergency and outpatient room in China, 2006–2014. Inj Prev 2016. [DOI: 10.1136/injuryprev-2016-042156.688] [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: 11/03/2022]
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132
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Xin G, Yuliang E, Leilei D, Yuan W, xiao D, Cuirong J, Pengpeng Y, Ye J, Linhong W. 571 Analysis on the violence prevalence and prevention status in China. Inj Prev 2016. [DOI: 10.1136/injuryprev-2016-042156.571] [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: 11/04/2022]
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133
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Cuirong J, YuLiang E, Pengpeng Y, Yuan W, Xiao D, Xin G, Ye J, Linhong W, Leilei D. 484 Study on child head injuries through data from the national injury surveillance: system of China, 2014. Inj Prev 2016. [DOI: 10.1136/injuryprev-2016-042156.484] [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: 11/04/2022]
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134
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Yuliang E, Leilei D, Pengpeng Y, Yuan W, Cuirong J, xiao D, Xin G, Ye J, Linhong W. 494 Analysis on the characteristics of falls among older person from Chinese national injuty surveillance system, 2008–2014. Inj Prev 2016. [DOI: 10.1136/injuryprev-2016-042156.494] [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: 11/03/2022]
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135
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Chen X, Zhang R, Yu LL, Wang HH, Yuan W, Sun JJ, Li JR. [Clinical value of a domestic portable monitoring system for the diagnosis of obstructive sleep apnea syndrome]. Lin Chung Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2016; 30:1314-1316. [PMID: 29797978 DOI: 10.13201/j.issn.1001-1781.2016.16.013] [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] [Received: 05/10/2016] [Indexed: 11/12/2022]
Abstract
Objective:The aim of this study is to evaluate the clinical value of a portable monitoring system(YH600B) in OSAHS by comparing the consistency of overnight sleeping data recorded by polysomnography and YH600B. Method:One hundred and nineteen snoring patients underwent one-night polysomnography(PSG)and YH600B simultaneously.The measured data by the two methods were compared to analysis their correlation,including AHI and LSaO₂.The Bland Altman plots was used to assess the consistency between PSG and STD.Sensitivity and specificity comparisons were plotted graphically using receiver operating characteristic(ROC) curve analysis.Result:All cases were well tolerated the procedure.①AHI and LSaO₂ measured by the two techniques have strong correlation(r=0.981, r=0.882,P<0.05,respectively).②Bland Altman analyses showed strong agreement between AHI values from the YH600B and PSG recordings.③the ROC-curve showed that AHI cut off value was 7.25,area under the curve was 0.992 3,sensitivity was 98.1%,and specificity was 92.2%.Conclusion:These data suggest that YH600B have highly consistency with PSG,and YH600B is accurate in the application of the diagnosis of OSAHS.
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Affiliation(s)
- X Chen
- Department of Otolaryngology Head and Neck Surgery,Navy General Hospital,Beijing,100048,China
| | - R Zhang
- Department of Otolaryngology Head and Neck Surgery,Navy General Hospital,Beijing,100048,China
| | - L L Yu
- Department of Otolaryngology Head and Neck Surgery,Navy General Hospital,Beijing,100048,China
| | - H H Wang
- Department of Otolaryngology Head and Neck Surgery,Navy General Hospital,Beijing,100048,China
| | - W Yuan
- Department of Otolaryngology Head and Neck Surgery,Navy General Hospital,Beijing,100048,China
| | - J J Sun
- Department of Otolaryngology Head and Neck Surgery,Navy General Hospital,Beijing,100048,China
| | - J R Li
- Department of Otolaryngology Head and Neck Surgery,Navy General Hospital,Beijing,100048,China
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136
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Jiang Z, Li F, Wan Y, Han Z, Yuan W, Cao L, Deng Y, Peng X, Chen F, Fan X, Liu X, Dai G, Wang Y, Zeng Q, Shi Y, Zhou Z, Chen Y, Xu W, Luo S, Chen S, Ye X, Mo X, Wu X, Li Y. LASS5 Interacts with SDHB and Synergistically Represses p53 and p21 Activity. Curr Mol Med 2016; 16:582-90. [DOI: 10.2174/1566524016666160607090012] [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] [Received: 04/22/2016] [Revised: 05/20/2016] [Accepted: 05/30/2016] [Indexed: 11/22/2022]
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137
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Pan AX, Hai Y, Yang JC, Chen XL, Yuan W, Guo H. [Radiographic study of Coflex interspinous device for lumbar spinal stenosis]. Zhonghua Wai Ke Za Zhi 2016; 54:513-7. [PMID: 27373477 DOI: 10.3760/cma.j.issn.0529-5815.2016.07.008] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE To assess the radiography change of lumbar spinal stenosis (LSS) treated with the implantation of Coflex interspinous device retrospectively. METHODS Sixty patients (34 male and 26 female) with LSS who underwent the decompression and Coflex device implanted surgery from January 2010 to December 2013 were followed up. The mean age of the patients was 59.4 years. There were 33 cases underwent Coflex surgery and 27 cases underwent Topping-off surgery. The Coflex segment ranged from L1/2 to L4/5 (L1-2: 1, L2-3: 5, L3-4: 19, L4-5: 35). The foraminal height, foraminal width and intervertebral space height change of the Coflex segment as well as its adjacent segment were recorded pre-/post-operatively and at last follow-up.Meanwhile, the Oswestry Disability Index(ODI) and Visual Analog Scale(VAS) were measured in all patient pre-/post-operatively and at last follow-up. The measurement data was recorded asx±s. And the independent and paired samples t-test was used to conduct the statistical analysis. RESULTS The foraminal height(FH) increased from (19.82±2.38) mm to (22.28±2.95) mm (P<0.05) post-operatively, and the FH decreased to (19.31±3.32) mm at the last follow up(P>0.05, compared to the post-operation). The average foraminal width(FW) was 11.2 mm, 11.58 mm and 11.12 mm at pre-/post-operation and follow up, which had no significant different change(P>0.05). The post-operative intervertebral space height (ISH) increased from (7.84±1.56) mm to (10.05±2.39) mm(P<0.05), and the ISH decreased to (7.91±1.77) mm at the last follow up(P>0.05, compared to the post-operation). The amount of the decreased FH and ISH had no significant difference when comparing the Coflex segment with its adjacent (Coflex±1) segments (P>0.05). The lumbar lordosis(LL) was 43.13°±15.93°, 38.41°±10.82° and 43.10°±13.21° at pre-/post-operation and follow up, there was no significant difference between pre- and post-operation(P>0.05). All patients showed statistically significant improvement(P<0.05) in the clinical outcome assessed in the VAS and ODI at the time of follow up compared to the pre-operation. The ODI score decreased from 65.12±13.56 to 9.89±1.77; the VAS score decreased from 8.02±1.81 to 1.66±0.51. CONCLUSIONS Coflex device could temporarily improve the FH and ISH after operation. However, it could not maintain the improvement as the follow-up time extended. The surgical decompression is the responsible factor for the good clinical outcome but not the improvement of FH.
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Affiliation(s)
- A X Pan
- Department of Orthopaedics, Beijing Chaoyang Hospital, Affiliated to Capital Medical University, Beijing 100020, China
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138
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Ma X, Yuan W, Tang WY, Ma J. [Expression of microRNA-29b in colorectal cancer and its relationship with clinicopathological features]. Zhonghua Zhong Liu Za Zhi 2016; 38:430-3. [PMID: 27346400 DOI: 10.3760/cma.j.issn.0253-3766.2016.06.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE The aim of this study was to detect the expression level of miR-29b in colorectal cancer (CRC) tissues and to analyze its relationship with clinicopathological features and prognosis. METHODS The expression of miR-29b was detected by real-time quantitative PCR in 202 colorectal cancer tissues and adjacent colorectal tissues. Statistical analysis of the results was conducted using SPSS 16.0 software. RESULTS The expression of miR-29b in colorectal cancer tissues and adjacent colorectal tissues was -7.761±0.115 and -7.150±0.137, respectively, with a significant difference between the two groups (P<0.01). Comparing colorectal cancer tissues with lymph node metastasis with those without lymph node metastasis, the expression of miR-29b (-7.528±0.158 vs. -7.988±0.164) was significantly increased (P<0.05). In addition, the expression of miR-29b in CRC according to TNM stage was -8.096±0.157 in stage Ⅰ/Ⅱ, -7.592±0.165 in stage Ⅲ and -6.603±0.468 in stage Ⅳ patients, showing a gradual increase depending on clinical staging (P<0.05). Univariate Cox regression analysis indicated that lymph node metastasis, differentiation degree and TNM stage were significantly related to the postoperative survival of colorectal cancer patients (P<0.001). Multivariate Cox regression analysis indicated that differentiation degree and TNM stage were independent factors impacting the survival of colorectal cancer patients (P<0.001). CONCLUSIONS The expression level of miR-29b is reduced in colorectal cancer tissues compared with that in the adjacent colorectal tissues. High expression level of miR-29b is associated with lymph node metastasis and TNM stage of CRC. miR-29b may be a potential marker indicating colorectal cancer metastasis and malignant progression.
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Affiliation(s)
- X Ma
- State Key Laboratory of Molecular Oncology, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - W Yuan
- State Key Laboratory of Molecular Oncology, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - W Y Tang
- State Key Laboratory of Molecular Oncology, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - J Ma
- State Key Laboratory of Molecular Oncology, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
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139
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Liu TN, Wu CT, He F, Yuan W, Li SX, Li HW, Yu HY, Wu M. Relationship between the G75A polymorphism in the apolipoprotein A1 (ApoA1) gene and the lipid regulatory effects of pravastatin in patients with hyperlipidemia. Genet Mol Res 2016; 15:gmr8216. [PMID: 27323196 DOI: 10.4238/gmr.15028216] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
In this study, we investigated the relationship between the G75A polymorphism in the apolipoprotein A1 (ApoA1) gene and the lipid regulatory effect of pravastatin in patients with hyperlipidemia. A total of 179 patients were divided into two groups: the pravastatin (N = 97) and policosanol (N = 82) treatment groups. The total cholesterol (TC), triglyceride, low-density lipoprotein (LDL-c), high-density lipoprotein, ApoA, and ApoB concentrations in the serum were measured using an automatic biochemical analyzer before and after treatment for 12 weeks. The genotypes of the ApoA1 G75A SNP were detected by polymerase chain reaction-restriction fragment length polymorphism, and were subsequently statistically analyzed. Pravastatin treatment induced a significant decrease in the TC, LDL-c, and ApoB levels in patients expressing the ApoA1 AA+GA genotype (P < 0.05), and not in those expressing the GG genotype (P > 0.05). However, policosanol treatment induced a non-significant decrease in the serum TC levels (P > 0.05) and a significant decrease in the ApoB levels (P < 0.05), and did not induce a decrease in the LDL-c (P > 0.05) levels in patients with the AA+GA genotype. Policosanol also induced a significant decrease in the TC and LDL-c levels in patients with the GG genotype (P < 0.05). The various genotypes of the ApoA1 G75A SNP influence the efficacy of lipid regulation by pravastatin and policosanol in patients with hyperlipidemia.
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Affiliation(s)
- T N Liu
- Cardiovascular Division, Affiliated Hospital of the North China University of Technology, Tangshan, Hebei, China
| | - C T Wu
- Cardiovascular Division, Affiliated Hospital of the North China University of Technology, Tangshan, Hebei, China
| | - F He
- Cardiovascular Division, Affiliated Hospital of the North China University of Technology, Tangshan, Hebei, China
| | - W Yuan
- Cardiovascular Division, Affiliated Hospital of the North China University of Technology, Tangshan, Hebei, China
| | - S X Li
- Cardiovascular Division, Affiliated Hospital of the North China University of Technology, Tangshan, Hebei, China
| | - H W Li
- Cardiovascular Division, Affiliated Hospital of the North China University of Technology, Tangshan, Hebei, China
| | - H Y Yu
- Cardiovascular Division, Affiliated Hospital of the North China University of Technology, Tangshan, Hebei, China
| | - M Wu
- The People's Hospital of Tangshan, Tangshan, China
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140
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Qian YY, Huang XL, Liang H, Zhang ZF, Xu JH, Chen JP, Yuan W, He L, Wang L, Miao MH, Du J, Li DK. Effects of maternal folic acid supplementation on gene methylation and being small for gestational age. J Hum Nutr Diet 2016; 29:643-51. [PMID: 27230729 DOI: 10.1111/jhn.12369] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
BACKGROUND Being small for gestational age (SGA), a foetal growth abnormality, has a long-lasting impact on childhood health. Its aetiology and underlying mechanisms are not well understood. Underlying epigenetic changes of imprinted genes have emerged as a potential pathological pathway because they may be associated with growth, including SGA. As a common methyl donor, folic acid (FA) is essential for DNA methylation, synthesis and repair, and FA supplementation is widely recommended for women planning pregnancy. The present study aimed to investigate the inter-relationships among methylation levels of two imprinted genes [H19 differentially methylated regions (DMRs) and MEST DMRs], maternal FA supplementation and SGA. METHODS We conducted a case-control study. Umbilical cord blood was taken from 39 SGA infants and 49 controls whose birth weights are appropriate for gestational age (AGA). DNA methylation levels of H19 and MEST DMRs were determined by an analysis of mass array quantitative methylation. RESULTS Statistically significantly higher methylation levels were observed at sites 7.8, 9 and 17.18 of H19 (P = 0.030, 0.016 and 0.050, respectively) in the SGA infants compared to the AGA group. In addition, the association was stronger in male births where the mothers took FA around conception at six H19 sites (P = 0.004, 0.005, 0.048, 0.002, 0.021 and 0.005, respectively). CONCLUSIONS Methylation levels at H19 DMRs were higher in SGA infants compared to AGA controls. It appears that the association may be influenced by maternal peri-conception FA supplementation and also be sex-specific.
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Affiliation(s)
- Y-Y Qian
- Shanghai Medical College of Fudan University, Shanghai, China.,Key Lab. of Reproduction Regulation of NPFPC, SIPPR, IRD, Fudan University, Shanghai, China
| | - X-L Huang
- Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, Shanghai, China
| | - H Liang
- Key Lab. of Reproduction Regulation of NPFPC, SIPPR, IRD, Fudan University, Shanghai, China
| | - Z-F Zhang
- Key Lab. of Reproduction Regulation of NPFPC, SIPPR, IRD, Fudan University, Shanghai, China
| | - J-H Xu
- Key Lab. of Reproduction Regulation of NPFPC, SIPPR, IRD, Fudan University, Shanghai, China
| | - J-P Chen
- Key Lab. of Reproduction Regulation of NPFPC, SIPPR, IRD, Fudan University, Shanghai, China
| | - W Yuan
- Key Lab. of Reproduction Regulation of NPFPC, SIPPR, IRD, Fudan University, Shanghai, China
| | - L He
- Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders, Bio-X Institutes, Shanghai Jiao Tong University, Shanghai, China
| | - L Wang
- State Key Laboratory of Genetic Engineering and MOE Key Laboratory of Contemporary Anthropology, School of Life Sciences, Fudan University, Shanghai, China.,Institutes of Biomedical Sciences, Fudan University, Shanghai, China
| | - M-H Miao
- Key Lab. of Reproduction Regulation of NPFPC, SIPPR, IRD, Fudan University, Shanghai, China.
| | - J Du
- Key Lab. of Reproduction Regulation of NPFPC, SIPPR, IRD, Fudan University, Shanghai, China.
| | - D-K Li
- Division of Research, Kaiser Permanente, Oakland, CA, USA
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Xu W, Wang Y, Zhou J, Zhu X, Zhang S, Yuan W, Liu X, Shi Y, Cao L, Zeng Q, Jiang Z, Ye X, Wan Y, Peng X, Deng Y, Chen F, Wang X, Dai G, Luo S, Fan X, Mo X, Wu X, Li Y. Cardiac Specific Overexpression of hHole Attenuates Isoproterenol-Induced Hypertrophic Remodeling through Inhibition of Extracellular Signal-Regulated Kinases (ERKs) Signalling. Curr Mol Med 2016; 16:515-23. [PMID: 27211802 DOI: 10.2174/1566524016666160523143704] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2016] [Revised: 05/01/2016] [Accepted: 05/12/2016] [Indexed: 11/22/2022]
Abstract
The human Hole gene (hHole) encodes a six-transmembrane protein with 319- amino acids. Our previous study showed that hHole was strongly expressed in adult heart and may act as a suppressor of extracellular signal-regulated kinases (ERKs), overactivation of which contributed to pathological cardiac hypertrophy. In this study, it was observed that Hole expression was up-regulated in murine hypertrophic hearts. In a cardiac specific transgenic mouse model, it was observed that overexpression of hHole specifically in heart attenuated cardiac hypertrophy and fibrosis induced by isoproterenol (ISO), with blunted transcriptions of ERK1/2, total ERK1/2 proteins and phosphorylated ERK1/2 (p-ERK1/2) levels. Furthermore, overexpression of hHole in mice by hydrodynamic tail-vein injection with hHole plamids also inhibited cardiac hypertrophy induced by ISO. Our work identified hHole as a novel repressor of cardiac hypertrophy, and provided new insights into the possible target for the prevention or treatment of cardiac diseases.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Y Li
- The Center for Heart Development, Key Lab of MOE for Development Biology and Protein Chemistry, College of Life Sciences, Hunan Normal University, Changsha 410081, China.
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Yi H, Gu H, Zhou T, Chen Y, Wang G, Jin Y, Yuan W, Zhao H, Zhang L. A pilot study on association between phthalate exposure and missed miscarriage. Eur Rev Med Pharmacol Sci 2016; 20:1894-1902. [PMID: 27212185] [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: 06/05/2023]
Abstract
OBJECTIVE The incidence of missed miscarriage has been increasing during the past decade in China and the etiology of about half of the cases remains unclear. Exposure to phthalates has been considered as a risk factor. The aim of this paper is to assess the association between exposure to phthalates and missed miscarriage. PATIENTS AND METHODS A case-control study was performed including 150 cases of missed miscarriage and 150 matched controls with normal pregnancies. The levels of phthalate exposure were compared between the two groups by measuring 13 phthalate metabolites in urine samples. Blood samples were collected for serum hormone measurement to assess the relationship between serum hormone level and phthalate exposure. RESULTS The urinary levels of metabolites of di-(2-ethylhexyl) phthalate (DEHP) and dimethyl phthalate (DMP) were significantly higher in the cases than in the controls. A strong dose-response relationship was observed between urinary metabolite levels and the odds of missed miscarriage. Monomethyl phthalate (MMP), a metabolite of DMP, and mono-2-ethylhexyl phthalate (MEHP), a metabolite of DEHP, each had significant negative correlation with maternal serum hormone levels. CONCLUSIONS In the current study, exposure to DEHP and DMP was found to be associated with missed miscarriage. Interruption of hormone synthesis by DMP and DEHP metabolites represents a plausible mechanism of phthalate reproductive toxicity.
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Affiliation(s)
- H Yi
- Department of Obstetrics and Gynecology, The Fifth People's Hospital of Shanghai, Fudan University, Shanghai, China.
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143
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Wang Y, Gao A, Zhao H, Lu P, Cheng H, Dong F, Gong Y, Ma S, Zheng Y, Zhang H, Zhang Y, Xu J, Zhu X, Yuan W, Zhang X, Hao S, Cheng T. Leukemia cell infiltration causes defective erythropoiesis partially through MIP-1α/CCL3. Leukemia 2016; 30:1897-908. [PMID: 27109512 DOI: 10.1038/leu.2016.81] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2015] [Revised: 03/02/2016] [Accepted: 03/23/2016] [Indexed: 12/22/2022]
Abstract
Leukemia often results in severe anemia, which may significantly contribute to patient mortality and morbidity. However, the mechanisms underlying defective erythropoiesis in leukemia have not been fully elucidated. In this study, we demonstrated that insufficient erythropoiesis in an immunocompetent acute myeloid leukemia (AML) murine model was due to reduced proliferation of megakaryocyte erythroid progenitors and increased apoptosis of erythroblasts. Colony-forming cell assays indicated that the leukemic bone marrow (BM) plasma inhibited erythroid colony formation, whereas they had no inhibitory effect on other types of colonies. Cytokine array analysis demonstrated that the chemokine CCL3 was elevated in the plasma of AML mice and patients. CCL3 inhibited erythroid differentiation of hematopoietic stem cells, common myeloid progenitors and especially megakaryocytic-erythroid progenitors. Administration of the CCR1 antagonist partially recovered the yield of erythroid colonies in the presence of CCL3 or leukemic BM plasma. Mechanistically, we observed an increase of p38 phosphorylation and subsequent downregulation of GATA1 after CCL3 treatment. Furthermore, knockdown of CCL3 attenuated leukemic progression and alleviated anemia. Therefore, our results demonstrate that elevated CCL3 in the leukemic environment suppresses erythropoiesis via CCR1-p38 activation, suggesting a novel mechanism for the erythroid defects observed in leukemia.
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Affiliation(s)
- Y Wang
- State Key Laboratory of Experimental Hematology, Institute of Hematology & Blood Diseases Hospital, Tianjin, China
| | - A Gao
- State Key Laboratory of Experimental Hematology, Institute of Hematology & Blood Diseases Hospital, Tianjin, China
| | - H Zhao
- State Key Laboratory of Experimental Hematology, Institute of Hematology & Blood Diseases Hospital, Tianjin, China
| | - P Lu
- State Key Laboratory of Experimental Hematology, Institute of Hematology & Blood Diseases Hospital, Tianjin, China
| | - H Cheng
- State Key Laboratory of Experimental Hematology, Institute of Hematology & Blood Diseases Hospital, Tianjin, China.,Center for Stem Cell Medicine, Tianjin, China
| | - F Dong
- State Key Laboratory of Experimental Hematology, Institute of Hematology & Blood Diseases Hospital, Tianjin, China
| | - Y Gong
- State Key Laboratory of Experimental Hematology, Institute of Hematology & Blood Diseases Hospital, Tianjin, China
| | - S Ma
- State Key Laboratory of Experimental Hematology, Institute of Hematology & Blood Diseases Hospital, Tianjin, China
| | - Y Zheng
- State Key Laboratory of Experimental Hematology, Institute of Hematology & Blood Diseases Hospital, Tianjin, China
| | - H Zhang
- State Key Laboratory of Experimental Hematology, Institute of Hematology & Blood Diseases Hospital, Tianjin, China
| | - Y Zhang
- State Key Laboratory of Experimental Hematology, Institute of Hematology & Blood Diseases Hospital, Tianjin, China
| | - J Xu
- State Key Laboratory of Experimental Hematology, Institute of Hematology & Blood Diseases Hospital, Tianjin, China
| | - X Zhu
- State Key Laboratory of Experimental Hematology, Institute of Hematology & Blood Diseases Hospital, Tianjin, China.,Center for Stem Cell Medicine, Tianjin, China.,Department of Stem Cell and Regenerative Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China
| | - W Yuan
- State Key Laboratory of Experimental Hematology, Institute of Hematology & Blood Diseases Hospital, Tianjin, China.,Center for Stem Cell Medicine, Tianjin, China.,Department of Stem Cell and Regenerative Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China
| | - X Zhang
- State Key Laboratory of Experimental Hematology, Institute of Hematology & Blood Diseases Hospital, Tianjin, China.,Department of Stem Cell and Regenerative Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China.,Department of Medicine, Loma Linda University, Loma Linda, CA, USA
| | - S Hao
- State Key Laboratory of Experimental Hematology, Institute of Hematology & Blood Diseases Hospital, Tianjin, China.,Center for Stem Cell Medicine, Tianjin, China.,Department of Stem Cell and Regenerative Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China
| | - T Cheng
- State Key Laboratory of Experimental Hematology, Institute of Hematology & Blood Diseases Hospital, Tianjin, China.,Center for Stem Cell Medicine, Tianjin, China.,Department of Stem Cell and Regenerative Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China.,Collaborative Innovation Center for Cancer Medicine, Tianjin, China.,Tianjin Key Laboratory of Blood Cell Therapy and Technology, Tianjin, China
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144
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Chen YK, Yuan W, Xu Y, Qi J, Ma J. [Changes of macrophages in colitis-associated colonic carcinogenesis]. Zhonghua Zhong Liu Za Zhi 2016; 38:165-71. [PMID: 26988820 DOI: 10.3760/cma.j.issn.0253-3766.2016.03.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE To investigate the changes of quantity and phenotype of macrophages during the progress of colitis-associated carcinogenesis, and to identify the chemokines mediating macrophage recruitment. METHODS Colitis-associated cancer was induced by azoxymethane (AOM) combined with dextran sulfate sodium (DSS) in C57BL/6 mice. The three sequential developmental stages of colitis associated cancer in the mice were named AD1, AD2 and AD3, respectively. Colon tissues were collected and digested into single-cell suspension. The percentage and phenotype of macrophages in the colon tissues were determined by fluorescence activated cell sorter (FACS). Protein array and real-time polymerase chain reaction (PCR) were used to predict potential chemotatic factors of macrophages. RESULTS Colitis-associated cancer was effectively induced in C57BL/6 mice using AOM combined with DSS. The percentage of macrophages was gradually elevated in the AD1, AD2 and AD3 groups [(9.93±1.28)%, (15.42±1.15)%, (21.25±0.62)%], respectively, significantly higher than that of the control group [(2.39±0.54)%, P<0.01]. The macrophages infiltrating the colonic mucosa exhibited mainly a pro-inflammatory phenotype as CD206(-)CD86(+) MHCII(-). The positive rates of CD206 in the AD1, AD2 and AD3 groups were (15.03±1.54)%, (8.11±3.70)%, and (9.06±1.16)%, respectively, significantly lower than that of the control group [(19.43±7.31)%, P<0.01]. The positive rates of CD86 in the AD2 and AD3 groups were (46.73±6.58)% and (76.90±14.32)%, respectively, significantly higher than that of the control group [(19.37±9.69)%, P<0.01)]. The positive rates of MHCⅡ in the AD1, AD2 and AD3 groups were (31.10±2.69)%, (33.93±14.08)%, and (29.93±1.41)%, respectively, significantly lower than that of the control group [(50.30±6.58)%, P<0.01]. Protein array analysis and real-time PCR data revealed that G-CSF was the potential chemokine to recruit macrophages in the AOM-DSS mouse model. CONCLUSION Macrophages infiltrate increasingly during the carcinogenesis and development of colitis-associated cancer, which mostly express CD206(-)CD86(+) MHCII(-) and might be potentially recruited by G-CSF.
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Affiliation(s)
- Y K Chen
- Department of Clinical Laboratory, Cancer Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100021, China
| | - W Yuan
- State Key Laboratory of Molecular Oncology, Cancer Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100021, China
| | - Y Xu
- State Key Laboratory of Molecular Oncology, Cancer Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100021, China
| | - J Qi
- Department of Clinical Laboratory, Cancer Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100021, China
| | - J Ma
- State Key Laboratory of Molecular Oncology, Cancer Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100021, China
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145
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Wang M, Yuan W, Hale A. Three-Dimensional Simulation of Ultrasound-Induced Microalgal Cell Disruption. Appl Biochem Biotechnol 2015; 178:1184-95. [PMID: 26660670 DOI: 10.1007/s12010-015-1937-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2015] [Accepted: 11/25/2015] [Indexed: 10/22/2022]
Abstract
The three-dimensional distribution (x, y, and z) of ultrasound-induced microalgal cell disruption in a sonochemical reactor was predicted by solving the Helmholtz equation using a three-dimensional acoustic module in the COMSOL Multiphysics software. The simulated local ultrasound pressure at any given location (x, y, and z) was found to correlate with cell disruption of a freshwater alga, Scenedesmus dimorphus, represented by the change of algal cell particle/debris concentration, chlorophyll-a fluorescence density (CAFD), and Nile red stained lipid fluorescence density (LFD), which was also validated by the model reaction of potassium iodide oxidation (the Weissler reaction). Furthermore, the effect of ultrasound power intensity and processing duration on algal cell disruption was examined to address the limitation of the model.
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Affiliation(s)
- M Wang
- Department of Biological and Agricultural Engineering, North Carolina State University, Raleigh, NC, 27695, USA
| | - W Yuan
- Department of Biological and Agricultural Engineering, North Carolina State University, Raleigh, NC, 27695, USA.
| | - Andy Hale
- Department of Biological and Agricultural Engineering, North Carolina State University, Raleigh, NC, 27695, USA
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146
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Yali W, Jian L, Yuan W, Yue S. Effect of Xinfeng capsule in the treatment of active rheumatoid arthritis: a randomized controlled trial. J TRADIT CHIN MED 2015; 35:626-31. [DOI: 10.1016/s0254-6272(15)30150-3] [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: 10/22/2022]
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147
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Ma Y, Wang M, Yuan W, Su K, Li MD. The significant association of Taq1A genotypes in DRD2/ANKK1 with smoking cessation in a large-scale meta-analysis of Caucasian populations. Transl Psychiatry 2015; 5:e686. [PMID: 26624925 PMCID: PMC5068580 DOI: 10.1038/tp.2015.176] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/21/2015] [Revised: 09/11/2015] [Accepted: 09/29/2015] [Indexed: 11/23/2022] Open
Abstract
Although a number of studies have analyzed the relation between the DRD2/ANKK1 gene Taq1A polymorphism and smoking cessation, the results remain controversial. The primary objective of the present study was to determine whether this variant indeed has any effect on smoking cessation. The A1-dominant model that considers A1/* (*=A1 or A2) and A2/A2 as two genotypes and compares their frequencies in current and former smokers was applied. A total of 22 studies with 11,075 subjects were included in the meta-analyses. Considering the potential influence of between-study heterogeneity, we conducted stratified meta-analyses with the Comprehensive Meta-Analysis statistical software (version 2.0). Results based on either cross-sectional or longitudinal studies consistently showed a statistically significant association between Taq1A A1/* genotypes and smoking cessation. Further, a more significant association of the variant with smoking cessation was detected when both types of studies were combined. However, there was marginal evidence of heterogeneity among studies (I(2)=33.9%; P=0.06). By excluding other ethnicities and subjects with cancer, the meta-analysis on the basis of 9487 Caucasians demonstrated that Taq1A A1/* genotypes indeed were significantly associated with smoking cessation under both the fixed- and random-effects models (pooled OR 1.22; 95% CI 1.11-1.34; P=3.9 × 10(-5) for both models). No evidence of between-study heterogeneity or publication bias was observed. Thus, we conclude that the polymorphism of Taq1A has an important role in the process of abstaining from smoking, and smokers carrying A2/A2 genotype have a higher likelihood of smoking cessation than those who carry A1/A1 or A1/A2.
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Affiliation(s)
- Y Ma
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Zhejiang University School of Medicine, Hangzhou, China
| | - M Wang
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Zhejiang University School of Medicine, Hangzhou, China
| | - W Yuan
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Zhejiang University School of Medicine, Hangzhou, China
| | - K Su
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Zhejiang University School of Medicine, Hangzhou, China
| | - M D Li
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Zhejiang University School of Medicine, Hangzhou, China,Air Center for Air Pollution and Health, Zhejiang University, Hangzhou, China,Department of Psychiatry and Neurobehavioral Sciences, University of Virginia, Charlottesville, VA, USA,State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Zhejiang University School of Medicine, Hangzhou, 310003, China or Department of Psychiatry and Neurobehavioral Sciences, University of Virginia, Charlottesville, VA 22903, USA. E-mail:
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148
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Liu G, Mo E, Wang X, Wu N, Liu F, Yuan W, Chen H, Wang J, Xu J, Cai S. Plasma Pharmacokinetic and Heart Distribution Studies of Z-GP-EPI, a Hypocardiotoxic Prodrug of Epirubicin. TROP J PHARM RES 2015. [DOI: 10.4314/tjpr.v14i5.21] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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149
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Liu X, Olsen J, Agerbo E, Yuan W, Cnattingius S, Gissler M, Li J. Birth Weight, Gestational Age, Fetal Growth and Childhood Asthma Hospitalization. Int J Epidemiol 2015. [DOI: 10.1093/ije/dyv096.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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150
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Zhang J, Su W, Zhang S, Hu Y, Liu J, Zhang X, Li J, Yuan W, Hu L, Cheng T, Zetterberg A. 1826 M-FISH analysis of the correlation between copy number variations of cell cycle regulatory genes and breast cancer neoadjuvant chemotherapeutic effect. Eur J Cancer 2015. [DOI: 10.1016/s0959-8049(16)30777-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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