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He X, Yuan C, Chen Y. Isolation, characterization, and expression analysis of FGF5 isoforms in cashmere goat. Small Rumin Res 2014. [DOI: 10.1016/j.smallrumres.2013.10.020] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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He X, Arslan AD, Ho TT, Yuan C, Stampfer MR, Beck WT. Involvement of polypyrimidine tract-binding protein (PTBP1) in maintaining breast cancer cell growth and malignant properties. Oncogenesis 2014; 3:e84. [PMID: 24418892 PMCID: PMC3940912 DOI: 10.1038/oncsis.2013.47] [Citation(s) in RCA: 82] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2013] [Revised: 11/13/2013] [Accepted: 11/14/2013] [Indexed: 12/12/2022] Open
Abstract
We have investigated some roles of splicing factor polypyrimidine tract-binding protein (PTBP1) in human breast cancer. We found that PTBP1 was upregulated in progressively transformed human mammary epithelial cells (HMECs), as well as in breast tumor cell lines compared with HMECs with finite growth potential and found that the level of PTBP1 correlated with the transformation state of HMECs. Knockdown of PTBP1 expression substantially inhibited tumor cell growth, colony formation in soft agar and in vitro invasiveness of breast cancer cell lines, a result similar to what we have reported in ovarian cancer. However, ectopic expression of PTBP1 (as a PTBP1-EGFP fusion protein) did not enhance the proliferation of immortalized HMEC. Rather, PTBP1 expression promoted anchorage-independent growth of an immortalized HMEC as assessed by increased colony formation in soft agar. In addition, we found that knockdown of PTBP1 expression led to upregulation of the expression of the M1 isoform of pyruvate kinase (PKM1) and increase of the ratio of PKM1 vs PKM2. PKM1 has been reported to promote oxidative phosphorylation and reduce tumorigenesis. Correspondingly, we observed increased oxygen consumption in PTBP1-knockdown breast cancer cells. Together, these results suggest that PTBP1 is associated with breast tumorigenesis and appears to be required for tumor cell growth and maintenance of transformed properties. PTBP1 exerts these effects, in part, by regulating the splicing of pyruvate kinase, and consequently alters glucose metabolism and contributes to the Warburg effect.
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Yuan C, Song H, Jiang Y, Azzam M, Zhu S, Zou X. Effects of lead contamination in feed on laying performance, lead retention of organs and eggs, protein metabolism, and hormone levels of laying hens. J APPL POULTRY RES 2013. [DOI: 10.3382/japr.2013-00801] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Zhang G, Li Y, Sun Y, Yuan C, Xu Z. The effect of tetraploid Robinia pseudoacacia leaf meal on performance, egg quality, and nutrient digestibility in laying hens. JOURNAL OF ANIMAL AND FEED SCIENCES 2013. [DOI: 10.22358/jafs/65925/2013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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105
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Yuan C, Malone B. Learning Optimal Bayesian Networks: A Shortest Path Perspective. J ARTIF INTELL RES 2013. [DOI: 10.1613/jair.4039] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
In this paper, learning a Bayesian network structure that optimizes a scoring function for a given dataset is viewed as a shortest path problem in an implicit state-space search graph. This perspective highlights the importance of two research issues: the development of search strategies for solving the shortest path problem, and the design of heuristic functions for guiding the search. This paper introduces several techniques for addressing the issues. One is an A* search algorithm that learns an optimal Bayesian network structure by only searching the most promising part of the solution space. The others are mainly two heuristic functions. The first heuristic function represents a simple relaxation of the acyclicity constraint of a Bayesian network. Although admissible and consistent, the heuristic may introduce too much relaxation and result in a loose bound. The second heuristic function reduces the amount of relaxation by avoiding directed cycles within some groups of variables. Empirical results show that these methods constitute a promising approach to learning optimal Bayesian network structures.
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Yang Q, Liu H, Qu L, Fu X, Yu Y, Yu G, Tian H, Yu Y, Sun D, Peng J, Bao F, Yuan C, Lu N, Li J, Zhang Y, Zhang F. Investigation of 20 non-HLA (human leucocyte antigen) psoriasis susceptibility loci in Chinese patients with psoriatic arthritis and psoriasis vulgaris. Br J Dermatol 2013; 168:1060-5. [PMID: 23252691 DOI: 10.1111/bjd.12142] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
BACKGROUND Recently, a number of non-HLA (human leucocyte antigen) psoriasis genetic susceptibility loci have been identified through genome-wide association studies, but data on their association with psoriatic arthritis (PsA) are lacking. OBJECTIVES To investigate recently identified psoriasis susceptibility loci in a cohort of Chinese patients with PsA, psoriasis vulgaris (PsV) and healthy controls. METHODS Twenty single-nucleotide polymorphisms (SNPs) from 20 loci were selected for genotyping in 379 patients with PsA, 595 patients with PsV and 1181 healthy controls using the MassARRAY platform (Sequenom, San Diego, CA, U.S.A.). Data handling, quality control and association were performed using PLINK software, v. 1.07. The Cochran-Armitage trend test was used to test the genotype-phenotype association. RESULTS PsA showed a significant association with markers at TNIP1 (rs17728338, P = 2.20 × 10(-8)), IL28RA (rs4649203, P = 5.04 × 10(-6)), IL12B (rs2082412, P = 3.82 × 10(-5)), ERAP1 (rs27524, P = 1.25 × 10(-3)), PTTG1 (rs2431697, P = 1.22 × 10(-3)) and GJB2 (rs3751385, P = 1.48 × 10(-3)) when compared with the control group. In PsV a significant association was found for IL28RA (rs4649203, P = 9.53 × 10(-7)), TNIP1 (rs17728338, P = 1.21 × 10(-4)) and ERAP1 (rs27524, P = 1.17 × 10(-3)). The allele frequencies were not statistically different between PsA and PsV except for SNPs at IL12B and ZNF816A with a nominal P-value of 0.04 and 0·01, respectively. CONCLUSIONS This study provides evidence for the involvement of ERAP1, IL28RA, GJB2 and PTTG1 loci in PsA susceptibility and confirmed the previously reported association with PsA and PsV. These results support the hypothesis that genetic aetiology of psoriasis is the same in both PsA and PsV and also support the higher genetic component of PsA than PsV.
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Ota H, Reeves MJ, Zhu DC, Majid A, Collar A, Yuan C, DeMarco JK. Sex differences of high-risk carotid atherosclerotic plaque with less than 50% stenosis in asymptomatic patients: an in vivo 3T MRI study. AJNR Am J Neuroradiol 2013. [PMID: 23194832 DOI: 10.3174/ajnr.a3399] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
BACKGROUND AND PURPOSE Men have a greater prevalence of high-risk carotid plaque features associated with stroke compared with women who have ≥50% stenosis, but little is known about these features in less significantly stenotic carotid arteries. This study aims to evaluate sex differences in complicated carotid plaque features in asymptomatic patients with <50% stenosis. MATERIALS AND METHODS Ninety-six patients (50 men, 46 women) with <50% carotid stenosis on MRA who had been referred for analysis of contralateral >50% carotid stenosis were included. The associations between sex and plaque features as identified by 3T MR carotid plaque imaging were examined by using logistic and linear regression models controlling for demographic characteristics, MRA stenosis, and the presence of contralateral plaque features. RESULTS The presence of a thin/ruptured fibrous cap (16% versus 2%, adjusted odds ratio = 8.57, P = .047), IPH (24% versus 6%, adjusted odds ratio = 4.53, P = .027), and American Heart Association type VI plaque (26% versus 6%, adjusted odds ratio = 5.04, P = .017) was significantly higher in men than in women. These associations remained significant following adjustment for contralateral plaque features. Men demonstrated a larger percentage volume of LR/NC (median, 1.66% versus -0.21%; P < .01). Calcification was not significantly associated with sex. CONCLUSIONS There is a sex difference of higher risk carotid plaque features during the early stage of disease seen in patients recruited for MR imaging evaluation of contralateral moderate-to-severe stenosis. Given the potential of using LR/NC without or with IPH to monitor therapy, these results indicate the possible importance of sex-based management in patients with asymptomatic carotid atherosclerosis across all stages of carotid stenosis.
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Saam T, Hetterich H, Hoffmann V, Yuan C, Treitl M, Dichgans M, Poppert H, Reiser MF, Bamberg F. Meta-Analyse und systematischer Überblick des prädiktiven Wertes von MRT-basierten Intraplaque Einblutungen für das Auftreten von zerebrovaskulären Ereignissen. ROFO-FORTSCHR RONTG 2013. [DOI: 10.1055/s-0033-1346452] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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109
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Saam T, Buchholz M, Notohamiprodjo M, Rominger A, Yuan C, Reiser MF, Nikolaou K, Dichgans M, Bayer-Karpinska A, Helck A. Einfluss des positiven Remodelings auf Plaquezusammensetzung und Plaquevulnerabilität: Eine in vivo MRT-Studie der Karotiden. ROFO-FORTSCHR RONTG 2013. [DOI: 10.1055/s-0033-1346259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Chi J, Chiu B, Cao Y, Liu X, Wang J, Balu N, Yuan C, Xu J. Assessment of femoral artery atherosclerosis at the adductor canal using 3D black-blood MRI. Clin Radiol 2013; 68:e213-21. [DOI: 10.1016/j.crad.2012.12.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2012] [Revised: 12/03/2012] [Accepted: 12/07/2012] [Indexed: 10/27/2022]
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Crist RC, Ambrose-Lanci LM, Vaswani M, Clarke TK, Zeng A, Yuan C, Ferraro TN, Hakonarson H, Kampman KM, Dackis CA, Pettinati HM, O'Brien CP, Oslin DW, Doyle GA, Lohoff FW, Berrettini WH. Case-control association analysis of polymorphisms in the δ-opioid receptor, OPRD1, with cocaine and opioid addicted populations. Drug Alcohol Depend 2013; 127:122-8. [PMID: 22795689 PMCID: PMC3509227 DOI: 10.1016/j.drugalcdep.2012.06.023] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2012] [Revised: 06/18/2012] [Accepted: 06/21/2012] [Indexed: 11/27/2022]
Abstract
BACKGROUND Addiction susceptibility and treatment responsiveness are greatly influenced by genetic factors. Sequence variation in genes involved in the mechanisms of drug action have the potential to influence addiction risk and treatment outcome. The opioid receptor system is involved in mediating the rewarding effects of cocaine and opioids. The μ-opioid receptor (MOR) has traditionally been considered the primary target for opioid addiction. The MOR, however, interacts with and is regulated by many known MOR interacting proteins (MORIPs), including the δ-opioid receptor (DOR). METHODS The present study evaluated the contribution of OPRD1, the gene encoding the DOR, to the risk of addiction to opioids and cocaine. The association of OPRD1 polymorphisms with both opioid addiction (OA) and cocaine addiction (CA) was analyzed in African American (OA n=336, CA n=503) and European American (OA n=1007, CA n=336) populations. RESULTS The primary finding of this study is an association of rs678849 with cocaine addiction in African Americans (allelic p=0.0086). For replication purposes, this SNP was analyzed in a larger independent population of cocaine addicted African Americans and controls and the association was confirmed (allelic p=4.53 × 10(-5); n=993). By performing a meta-analysis on the expanded populations, the statistical evidence for an association was substantially increased (allelic p=8.5 × 10(-7)) (p-values non-FDR corrected). CONCLUSION The present study suggests that polymorphisms in OPRD1 are relevant for cocaine addiction in the African American population and provides additional support for a broad role for OPRD1 variants in drug dependence.
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Dong X, Wang Y, Yuan C, Zou X. The ontogeny of nutrient transporter and digestive enzyme gene expression in domestic pigeon (Columba livia) intestine and yolk sac membrane during pre- and posthatch development. Poult Sci 2012; 91:1974-82. [DOI: 10.3382/ps.2012-02164] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
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113
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Festl F, Recktenwald F, Yuan C, Mallot HA. Detection of linear ego-acceleration from optic flow. J Vis 2012; 12:12.7.10. [DOI: 10.1167/12.7.10] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Wang Z, Li Z, Chen J, Huang J, Yuan C, Hong W, Yu S, Fang Y. Association ofBDNFGene Polymorphism with Bipolar Disorders in Han Chinese Population. GENES BRAIN AND BEHAVIOR 2012; 11:524-8. [DOI: 10.1111/j.1601-183x.2012.00797.x] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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115
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Yi Z, Li Z, Yu S, Wang L, Yuan C, Hong W, Shi T, Fang Y. O-64 - Blood-based gene expression profiles for classification of subsyndromal symptomatic depression and major depressive disorder. Eur Psychiatry 2012. [DOI: 10.1016/s0924-9338(12)74164-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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Wang Z, Yu S, Chen J, Li Z, Huang J, Yuan C, Hong W, Peng D, Wu Z, Fang Y. P-221 - Association between microrna-206 gene polymorphisms and bipolar disorder in the han chinese population. Eur Psychiatry 2012. [DOI: 10.1016/s0924-9338(12)74388-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Li Z, Yuan C, Wang Y, Chen J, Fang Y. P-189 - Clinical features of bipolar depression versus unipolar depression. Eur Psychiatry 2012. [DOI: 10.1016/s0924-9338(12)74356-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Li Z, Yuan C, Wu Z, Hong W, Fang Y. P-190 - The factors associated with occurrence of suicidal risk after treatment of SSRI in bipolar disorder with their first depressive episode. Eur Psychiatry 2012. [DOI: 10.1016/s0924-9338(12)74357-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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119
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Yuan C, Yu SY, Li Z, Huang J, Qian Y, Fang Y. P-222 - The 5HTTLPR is associated with bipolar disorder and affective temperaments as measured by TEMPS-A in chinese population. Eur Psychiatry 2012. [DOI: 10.1016/s0924-9338(12)74389-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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Zhang ZR, Yue W, Weimin L, Yuan C, Lijun W, Zhao Z, Zuyi Y. The investigation of the plasma miR-126 and miR-143 expression in patients with coronary heart disease. BRITISH HEART JOURNAL 2011. [DOI: 10.1136/heartjnl-2011-300867.202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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121
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Grimm JM, Schindler A, Freilinger T, Cyran CC, Schmidt C, Dichgans M, Yuan C, Reiser MF, Nikolaou K, Saam T. Vergleich von symptomatischen und asymptomatischen atherosklerotischen Karotisplaques mittels Paralleler Bildgebung und hochauflösender 3T in vivo MRT. ROFO-FORTSCHR RONTG 2011. [DOI: 10.1055/s-0031-1279320] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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122
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Li Y, Liu J, Yuan C, Cui B, Zou X, Qiao Y. High-risk human papillomavirus reduces the expression of microRNA-218 in women with cervical intraepithelial neoplasia. J Int Med Res 2011; 38:1730-6. [PMID: 21309487 DOI: 10.1177/147323001003800518] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
This study was designed to investigate whether there is a correlation between the down-regulation of microRNA-218 (miR-218) and the presence of human papillomavirus (HPV) infection in the pathogenesis of cervical cancer. The participants comprised 78 women with cervical intraepithelial neoplasia (CIN); 22 (28.2%) had CIN 1, 27 (34.6%) had CIN 2 and 29 (37.2%) had CIN 3. MiR-218 expression was determined by reverse transcriptase polymerase chain reaction and HPV genotypes in tissue specimens were identified with a microarray test kit. The findings showed that miR-218 levels in patients with high-risk HPV infection were lower than in those infected with low-risk or intermediate-risk HPV, or in those who were HPV-free. MiR-218 levels in patients with high-risk CIN were lower than in those with low-risk CIN. We concluded that infection with high-risk HPV lowered the expression of miR-218 and that down-regulation of miR-218 was involved in the pathogenesis of cervical cancer.
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Rajappan M, Yuan C, Yates JT. Lyman-α driven molecule formation on SiO2 surfaces—connection to astrochemistry on dust grains in the interstellar medium. J Chem Phys 2011; 134:064315. [DOI: 10.1063/1.3532089] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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124
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Du S, Yuan C. Evaluation of patient self-management outcomes in health care: a systematic review. Int Nurs Rev 2010; 57:159-67. [PMID: 20579149 DOI: 10.1111/j.1466-7657.2009.00794.x] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
BACKGROUND The importance of self-management and its intervention for improving the ability and skill of self-management has been discussed in literatures. It is, however, unclear how to choose the fitted, objective and accurate evaluation system when assessing the outcome. AIM The aim of this article was to establish a general evaluation system for skill and ability of self-management in chronic diseases through systematic review on different evaluation indicators and scales. METHOD A systematic search of six electronic databases was conducted. Two authors independently reviewed each qualified study for relevance and significance. Subsequently, main evaluation indicators and scales were identified and categorized into themes and sub-themes. RESULTS Nineteen articles were identified in this review. Among them, six main evaluation indicators of self-management, including frequently used scales, were extracted and tabulated. Self-efficacy, health behaviour/attitude, health status, health service utilization, quality of life and psychological indicators were the main indicators in evaluating self-management outcome, and they could be used alone or in combination flexibly according to the different goals of programmes. CONCLUSION Accurate evaluation of skill and ability of self-management is crucial not only in baseline data collection but also in proving the effectiveness of intervention. The outcomes of this study provide future researchers or caregivers with a better understanding and a series of good choices in self-management outcome evaluation.
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Yuan C, Lu W, Xiang T, Yi F, Liu G, Ren G, Song F. Generation of mammalian cell lines with gene knock-down for human MCHR2. Cell Mol Biol (Noisy-le-grand) 2010; 56 Suppl:OL1359-OL1365. [PMID: 20937223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2009] [Accepted: 07/30/2010] [Indexed: 05/30/2023]
Abstract
Appetite regulating neuropeptide melanin-concentrating hormone (MCH) has been implicated in obesity. It functions through its two receptors MCHR1 and MCHR2. While MCH and MCHR1 have been studied more extensively, the function of MCHR2 remains largely unknown, due to the lack of suitable in vitro and in vivo models. To create an in vitro system of genetic knock-down of MCHR2 in mammalian cells, we constructed four small hairpin RNAs (shRNAs) against human MCHR2 in eukaryotic expression vector, and transfected the plasmids into CHO cells that stably express human MCHR2. Using the empty vector or a negative shRNA control plasmid, we show that MCHR2-shRNAs suppressed 45.8% - 66.4% of MCHR2 expression at both mRNA and protein levels. As the result, in cells carrying the MCHR2-shRNAs, binding of MCHR2 to MCH was decreased by 39.4% - 78.7% accompanied by a similar decrease in affinity of the receptor to ligand by 40.9% - 81.9%. These cells still respond to MCH treatment, but intracellular Ca2+ release as the downstream signaling event was also decreased by 114.8% - 822.4%. Together, this study generated a set of shRNAs and cell lines as valuable reagents for further study on MCHR2 functions. These results will ultimately help to advance our knowledge about appetite regulating neuropeptide receptors.
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