76
|
Ma KI, Du M, Liao M, Chen S, Yin G, Liu Q, Wei Q, Qin G. Evaluation of Wound Healing Effect of Punica granatum L Peel Extract on Deep Second-Degree Burns in Rats. TROP J PHARM RES 2015. [DOI: 10.4314/tjpr.v14i1.11] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
|
77
|
Yang Z, Yin G, Wang LY, Zhang H. A mean-variance control framework for platoon control problems: Weak convergence results and applications on reduction of complexity. COMMUNICATIONS IN INFORMATION AND SYSTEMS 2015. [DOI: 10.4310/cis.2015.v15.n1.a5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
78
|
Jiang F, Yang Y, Li J, Li W, Luo Y, Li Y, Zhao H, Wang X, Yin G, Wu G. Partial least squares-based gene expression analysis in preeclampsia. GENETICS AND MOLECULAR RESEARCH 2015; 14:6598-604. [DOI: 10.4238/2015.june.18.2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
|
79
|
Ott A, Ring S, Yin G, Calvet W, Stannowski B, Schlatmann R, Ballauff M. Efficient plasmonic scattering of colloidal silver particles through annealing-induced changes. NANOTECHNOLOGY 2014; 25:455706. [PMID: 25338823 DOI: 10.1088/0957-4484/25/45/455706] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
We present an experimental study on the influence of annealing temperature on morphological changes of colloidal silver nanoparticles (Ag NPs) and their optical response. Monodisperse colloidal Ag NPs with diameter of 164 nm ± 15 nm have been fabricated by a facile two-step synthesis approach. The annealing effects on the Ag NPs have been investigated by means of optical measurements, scanning electron microscopy, x-ray photoelectron spectroscopy and x-ray diffraction. By annealing up to 440 °C morphology and chemical compositions of the Ag NPs changed. These changes affect the particle size and distribution, surface morphology, crystallinity and, most importantly, the oxidation state of the surface layer. The removal of an oxide layer leads to stronger light scattering from the nanoparticles and decreases parasitic light absorption at wavelengths above 400 nm. Strong light trapping has been observed for a silicon thin film with embedded annealed Ag NPs. This study demonstrates that colloidal Ag NPs for plasmonic solar cells need to be carefully processed and that they can potentially achieve high scatter efficiencies.
Collapse
|
80
|
Mei F, Lang J, Li Z, Yin G, Tan Y, Fu B, Tan Z, Wang B, Wang P. Prognostic Factors for Toxicity and Survival in Advanced Cervical Cancer Patients Treated With High-Dose-Rate (HDR)-Intracavitary Brachytherapy (ICBT) Combined With Complementary Intensity Modulated Radiation Therapy (IMRT). Int J Radiat Oncol Biol Phys 2014. [DOI: 10.1016/j.ijrobp.2014.05.1505] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
81
|
Qu M, Jiang J, Liu XP, Tian Q, Chen LM, Yin G, Liu D, Wang JZ, Zhu LQ. Reduction and the intracellular translocation of EphB2 in Tg2576 mice and the effects of β-amyloid. Neuropathol Appl Neurobiol 2014; 39:612-22. [PMID: 23336960 DOI: 10.1111/nan.12019] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2012] [Accepted: 12/19/2012] [Indexed: 10/27/2022]
Abstract
AIMS EphB2 is a member of receptor tyrosine kinases (RTKs) family that is essential for the cell adhesion, neural crest migration, axon guidance and synaptogenesis in the nervous system. Recent studies show that preservation of EphB2 in a transgenic mouse model of Alzheimer's disease (AD) rescues the cognitive deficit, suggesting a crucial role of EphB2 in AD. However, the expression and distribution profiles of EphB2 in the early stage of AD have not been reported. METHODS Immunohistochemistry, immunoblot and immunofluorescence were used to analyse the level of EphB2 in Tg2576 mice at different ages and in cultured neurones with Aβ treatment at different times. RESULTS EphB2 was reduced in an age-dependent manner in the olfactory bulb and the hippocampus of Tg2576 mice. The decrease of EphB2 appeared earlier in the olfactory bulb than the hippocampus, and reduction of EphB2 appeared earlier than that of MAP2, a dendritic cytoskeleton marker. In the cortex, EphB2 displayed a significant translocation from the neuronal processes to the cell bodies with ageing. In primary hippocampal neuronal cultures, Aβ42 treatment also induced the decrement of EphB2 that was prior to the decline of MAP2. CONCLUSIONS Our findings provide the first evidence for an age- and region-dependent reduction and intracellular translocation of EphB2 in Tg2576 mice, and the foremost decrement of EphB2 in the olfactory bulb may represent an early sign of AD.
Collapse
|
82
|
Yin G, Talafha Y, Xi F. Stochastic Liénard Equations with Random Switching and Two-time Scales. COMMUN STAT-THEOR M 2014. [DOI: 10.1080/03610926.2012.741741] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
83
|
Chen B, Duan L, Yin G, Tan J, Jiang X. miR-381, a novel intrinsic WEE1 inhibitor, sensitizes renal cancer cells to 5-FU by up-regulation of Cdc2 activities in 786-O. J Chemother 2013; 25:229-38. [DOI: 10.1179/1973947813y.0000000092] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
|
84
|
Chen B, Duan L, Yin G, Tan J, Jiang X. Simultaneously expressed miR-424 and miR-381 synergistically suppress the proliferation and survival of renal cancer cells---Cdc2 activity is up-regulated by targeting WEE1. Clinics (Sao Paulo) 2013; 68:825-33. [PMID: 23778472 PMCID: PMC3674285 DOI: 10.6061/clinics/2013(06)17] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/16/2012] [Accepted: 02/26/2013] [Indexed: 01/05/2023] Open
Abstract
OBJECTIVES MiRNAs are intrinsic RNAs that interfere with protein translation. Few studies on the synergistic effects of miRNAs have been reported. Both miR-424 and miR-381 have been individually reported to be involved in carcinogenesis. They share a common putative target, WEE1, which is described as an inhibitor of G2/M progression. Here, we studied the synergistic effects of miR-424 and miR-381 on renal cancer cells. METHODS The viability of 786-O cells was analyzed after transfection with either a combination of miR-424 and miR-381 or each miRNA alone. We investigated cell cycle progression and apoptosis with flow cytometry. To confirm apoptosis and the abrogation of G2/M arrest, we determined the level of pHH3, which is an indicator of mitosis, and caspase-3/7 activity. The expression levels of WEE1, Cdc25, γH2AX, and Cdc2 were manipulated to investigate the roles of these proteins in the miRNA-induced anti-tumor effects. To verify that WEE1 was a direct target of both miR-424 and miR-381, we performed a dual luciferase reporter assay. RESULTS We showed that the combination of these miRNAs synergistically inhibited proliferation, abrogated G2/M arrest, and induced apoptosis. This combination led to Cdc2 activation through WEE1 inhibition. This regulation was more effective when cells were treated with both miRNAs than with either miRNA alone, indicating synergy between these miRNAs. WEE1 was verified to be a direct target of each miRNA according to the luciferase reporter assay. CONCLUSIONS These data clearly demonstrate that these two miRNAs might synergistically act as novel modulators of tumorigenesis by down-regulating WEE1 expression in renal cell cancer cells.
Collapse
|
85
|
Chen B, Yin G, Duan L, Li W, Jiang X. A new marker, SOX11, aids the diagnosis of mantle cell lymphoma in the prostate: A case report. Oncol Lett 2012; 4:265-267. [PMID: 22844367 DOI: 10.3892/ol.2012.732] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2012] [Accepted: 05/18/2012] [Indexed: 11/05/2022] Open
Abstract
Mantle cell lymphoma (MCL) of the prostate, either primary or secondary, is a rare entity. This case report examines an 83-year-old male who complained of not only nocturia (2-3 times), but also frequency and urgency of urination. The maximal urinary flow rate was 4.1 ml/sec. A transrectal ultrasound-guided prostate biopsy was advised after a hard enlargement of the prostate was detected; however, it was refused. Therefore, a plasma kinetic transurethral resection of the prostate was performed. Postoperative pathological examinations demonstrated MCL of the prostate. Positive immunohistochemistry for CD5 and cyclin D1 was observed. The diagnosis was confirmed by the introduction of a new diagnostic marker, SOX11. The maximal flow rate achieved was 15 ml/sec following surgery. To the best of our knowledge, this is the first study of MCL being diagnosed using SOX11 as a marker in the prostate. This case should alert clinicians and pathologists to pay close attention to the diagnosis of malignant lymphoma of the prostate. This study provides further insights into the diagnosis and therapy of MCL.
Collapse
|
86
|
Yin G, Zhang S, Yan L, Wu M, Xu M, Li F, Cheng H. One-hour upright posture is an ideal position for serum aldosterone concentration and plasma renin activity measuring on primary aldosteronism screening. Exp Clin Endocrinol Diabetes 2012; 120:388-94. [PMID: 22689101 DOI: 10.1055/s-0032-1301894] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
The serum aldosterone concentration (SAC) to plasma renin activity (PRA) ratio (ARR) is considered a useful screening test in the differential diagnosis of essential hypertension (EH) and primary aldosteronism (PA). The purpose of this study is to investigate the variation of ARR and compare the screening efficiency of it under different postures.37 patients with PA and 92 patients with EH were recruited in this study. Blood was sampled for measuring SAC and PRA under conditions of overnight recumbency, keeping upright posture for 1 h, 2 h and 4 h. The variation and screening efficiency of ARR under these conditions were compared according to repeated measured ANOVA and ROC curve analysis.In the EH group, ARR measured under recumbency posture was higher than those measured under keeping upright posture for 1 h and 2 h. In the PA group, there is no statistical difference for ARR between any 2 postures. AUCs of ARR measured under 4 conditions were 0.976, 0.995, 0.988, and 0.974 respectively. Cutoff values were ranging from 24.75 ng/dl per ng/ml/h under keeping upright for 2 h to 69.19 ng/dl per ng/ml/h under overnight recumbercy. ARR measured under keeping upright posture for 1 h produced the best characteristic of screening efficiency.Keeping upright posture for 1 h was the ideal position for ARR measuring and using a cutoff value of 35.90 ng/dl per ng/ml/h will have a sensitivity and specificity of 100.00% and 92.30% respectively.
Collapse
|
87
|
Lin M, Li J, Koren S, Fan J, Wang L, Yin G, Ma C. TU-E-BRB-06: Best in Physics (Therapy) - Development and Experimental Validation of EPID-Based 4D Dose Reconstruction. Med Phys 2012; 39:3909. [PMID: 28518692 DOI: 10.1118/1.4735955] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
PURPOSE To develop and validate an EPID-based 4D patient dose reconstruction framework accounting for linac delivery uncertainties, interfractional and intrafractional motions, and interplay effect. METHODS Patients with fiducial markers were scanned with 4D-CT for SBRT planning. Before treatment, in-room 4D-CT was performed. Both the MLC and the tumor movements were tracked by continuously acquiring EPID images during treatment. Instead of directly using the heterogeneous transit photon fluence measured by the EPID, this method reconstructed the incident beam fluence based on the MLC apertures measured by the EPID and the delivered MU recorded by the linac. To account for the time-dependent-geometry, the incident fluence distributions were sorted into their corresponding phases based on the tumor motion pattern detected by the EPID and accumulated as the incident fluence map for each phase. Together with 4D-CT, it was then used for Monte Carlo dose calculation. Deformable registration was performed to sum up the phase doses for treatment assessment. The feasibility of using the transit EPID images for incident fluence reconstruction was evaluated against EPID in-air measurements. The accuracy of 3D- and 4D-dose reconstruction was validated by a motordriven cylindrical diode array for six clinical SBRT plans. RESULTS The average difference between the measured and reconstructed fluence maps is within 0.16%. The reconstructed 3D-dose shows 1.4% agreement in the CAX-dose and >98.5% gamma-passing-rate (2%/2mm) in the peripheral-dose. A distorted dose distribution is observed in the measurement for the moving ArcCheck-phantom. The comparison between the measured and the reconstructed 4D-dose without considering interplay fails the gammaevaluation (59%-88.9% gamma-passing-rate). In contrast, when the interplay is considered, the dose distortion phenomena is successfully represented in the reconstructed dose (>97.6% gamma-passing-rate). CONCLUSIONS The experimental validation demonstrates that the proposed method provides a practical way to reconstruct the fractional 4D-doses received by the patient and enables adaptive SBRT strategy.
Collapse
|
88
|
Yin G, Koren S, Lin M, Chen L, Ma C. SU-E-T-594: Dosimetric Evaluation of Different Treatment Techniques for Prostate Cancer. Med Phys 2012; 39:3842. [DOI: 10.1118/1.4735683] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
|
89
|
Xue J, Yang J, Jiang Z, He L, Jiang X, Dai Y, Yin G. [Comparison the effects of prone and modified recumbent positions on minimal invasive percutaneous nephrolithotomy]. ZHONG NAN DA XUE XUE BAO. YI XUE BAN = JOURNAL OF CENTRAL SOUTH UNIVERSITY. MEDICAL SCIENCES 2012; 37:408-12. [PMID: 22561574 DOI: 10.3969/j.issn.1672-7347.2012.04.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
OBJECTIVE To compare the safety and efficacy of prone and modified recumbent positions on minimal invasive percutaneous nephrolithotomy. METHODS A total of 62 patients with upper urinary calculi were grouped into two groups, one of which consisted of 27 patients who underwent the minimal invasive percutaneous nephrolithotomy with modified recumbent position, and the other 35 patients with prone position. There was no significant statistical difference in the age, gender and complications between the two groups before surgery (P>0.05). Duration of and blood loss during surgery, complications in the perioperative period, and the length of postoperative hospital stay were all recorded. The data were analyzed by SPSS 13.0. RESULTS Surgery was successful in all cases. There was no failure to puncture nor need to resort to open surgery. Average operation duration for the modified recumbent position group was (85.1± 25.3) min vs (97.2±30.6) min for the prone position group. Mean blood loss during the operation was (117.5± 49.7) mL vs (149.3±53.1) mL. There were no severe complications during and after surgery in the modified recumbent position group. In the prone position group, s one patient suffered pneumothorax during the operation and two suffered selective renal artery embolization because of massive hemorrhaging following the operation. There were significant differences in blood loss during surgery, in complications during the perioperative period, and in length of postoperative stay in hospital (P<0.05) between the two groups. CONCLUSION The patients are safer and more easily tolerate the minimal invasive percutaneous nephrolithotomy in the modified recumbent position than in the prone position, though the treatment efficacy of these two kinds of operation is similar. It is recommended that the modified recumbent position should be used generally in the percutaneous nephrolithotomy.
Collapse
|
90
|
Xue J, Yan J, Zhu H, Yang J, Sun X, Li Y, Yin G. [The applied research of a neotype medical drainage bag in clinical care]. ZHONGGUO YI LIAO QI XIE ZA ZHI = CHINESE JOURNAL OF MEDICAL INSTRUMENTATION 2012; 36:229-230. [PMID: 22916489] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
OBJECTIVE To compare and evaluate the effectiveness of two kinds of medical drainage bag. METHODS 206 patients were randomly divided into two groups each of which consisted of 103 patients. All the data including four indices, such as the time required to replace the drainage bags, the incidence of the bags detached, draining fluid splashing rates during the replacement of the bags, patient and medical staff satisfaction, were collected and analyzed statistically. RESULTS The time required to replace the drainage bags, the incidence of the bags detached and draining fluid splashing rates during the replacement of the bags of the experimental group were significantly lower than those of the control group (P < 0.05), while the patient and medical staff satisfaction were significantly higher than those of the control group (P < 0.05). CONCLUSION It is convenient, quick and time and effort saving to use the neotype medical drainage bags. Hence, the use of neotype medical drainage bags could help to improve the work efficiency, effectively prevent occupational injuries and protect health care workers.
Collapse
|
91
|
Yin G, Alvero AB, Craveiro V, Holmberg JC, Fu HH, Montagna MK, Yang Y, Chefetz-Menaker I, Nuti S, Rossi M, Silasi DA, Rutherford T, Mor G. Constitutive proteasomal degradation of TWIST-1 in epithelial-ovarian cancer stem cells impacts differentiation and metastatic potential. Oncogene 2012; 32:39-49. [PMID: 22349827 PMCID: PMC3703656 DOI: 10.1038/onc.2012.33] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Epithelial-mesenchymal transition (EMT) is a critical process for embryogenesis but is abnormally activated during cancer metastasis and recurrence. This process enables epithelial cancer cells to acquire mobility and traits associated with stemness. It is unknown whether epithelial stem cells or epithelial cancer stem cells are able to undergo EMT, and what molecular mechanism regulates this process in these specific cell types. We found that Epithelial Ovarian Cancer Stem cells (EOC stem cells) are the source of metastatic progenitor cells through a differentiation process involving EMT and Mesenchymal-Epithelial Transition (MET). We demonstrate both in vivo and in vitro the differentiation of EOC stem cells into mesenchymal spheroid-forming cells (MSFCs) and their capacity to initiate an active carcinomatosis. Furthermore, we demonstrate that human EOC stem cells injected i.p in mice are able to form ovarian tumors, suggesting that the EOC stem cells have the ability to “home” to the ovaries and establish tumors. Most interestingly, we found that TWIST1 is constitutively degraded in EOC stem cells, and that the acquisition of TWIST1 requires additional signals that will trigger the differentiation process. These findings are relevant for understanding the differentiation and metastasis process in EOC stem cells.
Collapse
|
92
|
Wang H, Yin G, Rogers K, Miralles C, De Blas AL, Rubio ME. Monaural conductive hearing loss alters the expression of the GluA3 AMPA and glycine receptor α1 subunits in bushy and fusiform cells of the cochlear nucleus. Neuroscience 2011; 199:438-51. [PMID: 22044924 DOI: 10.1016/j.neuroscience.2011.10.021] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2011] [Revised: 10/11/2011] [Accepted: 10/13/2011] [Indexed: 11/18/2022]
Abstract
The impact of conductive hearing loss (CHL), the second most common form of hearing loss, on neuronal plasticity in the central auditory pathway is unknown. After short-term (1 day) monaural earplugging, the GluA3 subunits of the AMPA receptor (AMPAR) are upregulated at auditory nerve synapses on the projection neurons of the cochlear nucleus; glycine receptor α1 (GlyRα1) subunits are downregulated at inhibitory synapses in the same neuronal population. These data suggest that CHL affects receptor trafficking at synapses. We examined the impact of 7 days of CHL on the general expression of excitatory and inhibitory receptors by quantitative biochemistry and immunohistochemistry, using specific antibodies to detect AMPAR subunits (GluA1, GluA2, GluA2/3, and GluA4), GlyRα1, and the GABA(A) receptor subunits β2/3. Following monaural earplugging and an elevation of the hearing threshold by approximately 35 dB, the immunolabeling of the antibody for the GluA2/3 subunits but not the GluA2 subunit increased on bushy cells (BCs) and fusiform cells (FCs) of the ipsilateral ventral and dorsal cochlear nuclei. These same cell types showed a downregulation of the GlyRα1 subunit. Similar results were observed in the contralateral nuclei. The expression levels of GABA(A) β2/3 were unchanged. These findings suggest that, following longer periods of monaural conductive hearing loss, the synthesis and subsequent composition of specific glutamate and glycine receptors in projection neurons and their synapses are altered; these changes may contribute to abnormal auditory processing.
Collapse
|
93
|
Cheng H, Zhao S, Jiang S, Lu M, Yan C, Ling J, Zhang Y, Liu Q, Ma N, Yin G, Wan J, Yang Y, Li L, Jerecic R, He Z. Comparison of cardiac magnetic resonance imaging features of isolated left ventricular non-compaction in adults versus dilated cardiomyopathy in adults. Clin Radiol 2011; 66:853-60. [PMID: 21684533 DOI: 10.1016/j.crad.2011.04.014] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2010] [Revised: 02/20/2011] [Accepted: 04/21/2011] [Indexed: 12/15/2022]
Abstract
AIM To compare cardiac magnetic resonance imaging (MRI) features between isolated left ventricular non-compaction (IVNC) and dilated cardiomyopathy (DCM) in adults. MATERIALS AND METHODS A consecutive series of 50 patients with IVNC from a single institution were reviewed. During the same period, 50 patients with DCM who had prominent trabeculations, who were matched for age, gender, and body surface area, were prospectively included. Left ventricular (LV) morphology and function were assessed using cardiac MRI. RESULTS Compared with patients with DCM, patients with IVNC had a significantly lower LV sphericity index and end-diastolic volume index (LVEDVI) and a greater LV ejection fraction (LVEF), number of trabeculated segments, and ratio of non-compacted to compacted myocardium (NC/C ratio). There were no significant differences in stroke volume index, cardiac output, and cardiac index between the two patient groups. In patients with IVNC, the number of trabeculated segments and the NC/C ratio correlated positively with LVEDVI (r=0.626 and r=0.559, respectively) and negatively with LVEF (r=-0.647 and r=-0.521, respectively, p<0.001 for all). In patients with DCM, the number of non-compacted segments and the NC/C ratio had no correlation with either the LVEDVI (r=-0.082 and r=-0.135, respectively) or the LVEF (r=0.097 and r=0.205, respectively). CONCLUSION There are demonstrable morphological and functional differences between IVNC and DCM at LV assessment using cardiac MRI. The occurrence of trabeculated myocardium might be due to a different pathophysiological mechanism.
Collapse
|
94
|
Nguyen DT, Yin G. Asymptotic Expansions for Solutions of Systems of Kolmogorov Backward Equations of Two-Time-Scale Switching Jump Diffusions. COMMUN STAT-THEOR M 2011. [DOI: 10.1080/03610926.2011.581166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
|
95
|
Yin G, Li J, Wan Y, Hou R, Li X, Zhang J, Cheng T, Zhang K. Abnormality of RUNX1 signal transduction in psoriatic CD34+ bone marrow cells. Br J Dermatol 2011; 164:1043-51. [DOI: 10.1111/j.1365-2133.2010.10192.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
|
96
|
Yang Q, Yin G, Guo Y, Zhang D, Chen S, Xu M. A major QTL for resistance to Gibberella stalk rot in maize. TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 2010; 121:673-87. [PMID: 20401458 DOI: 10.1007/s00122-010-1339-0] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2009] [Accepted: 04/03/2010] [Indexed: 05/20/2023]
Abstract
Fusarium graminearum Schwabe, the conidial form of Gibberella zeae, is the causal fungal pathogen responsible for Gibberella stalk rot of maize. Using a BC(1)F(1) backcross mapping population derived from a cross between '1145' (donor parent, completely resistant) and 'Y331' (recurrent parent, highly susceptible), two quantitative trait loci (QTLs), qRfg1 and qRfg2, conferring resistance to Gibberella stalk rot have been detected. The major QTL qRfg1 was further confirmed in the double haploid, F(2), BC(2)F(1), and BC(3)F(1) populations. Within a qRfg1 confidence interval, single/low-copy bacterial artificial chromosome sequences, anchored expressed sequence tags, and insertion/deletion polymorphisms, were exploited to develop 59 markers to saturate the qRfg1 region. A step by step narrowing-down strategy was adopted to pursue fine mapping of the qRfg1 locus. Recombinants within the qRfg1 region, screened from each backcross generation, were backcrossed to 'Y331' to produce the next backcross progenies. These progenies were individually genotyped and evaluated for resistance to Gibberella stalk rot. Significant (or no significant) difference in resistance reactions between homozygous and heterozygous genotypes in backcross progeny suggested presence (or absence) of qRfg1 in '1145' donor fragments. The phenotypes were compared to sizes of donor fragments among recombinants to delimit the qRfg1 region. Sequential fine mapping of BC(4)F(1) to BC(6)F(1) generations enabled us to progressively refine the qRfg1 locus to a ~500-kb interval flanked by the markers SSR334 and SSR58. Meanwhile, resistance of qRfg1 to Gibberella stalk rot was also investigated in BC(3)F(1) to BC(6)F(1) generations. Once introgressed into the 'Y331' genome, the qRfg1 locus could steadily enhance the frequency of resistant plants by 32-43%. Hence, the qRfg1 locus was capable of improving maize resistance to Gibberella stalk rot.
Collapse
|
97
|
Xi F, Yin G. Asymptotic properties of nonlinear autoregressive Markov processes with state-dependent switching. J MULTIVARIATE ANAL 2010. [DOI: 10.1016/j.jmva.2009.12.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
98
|
Yin G, Chen R, Alvero AB, Fu HH, Holmberg J, Glackin C, Rutherford T, Mor G. TWISTing stemness, inflammation and proliferation of epithelial ovarian cancer cells through MIR199A2/214. Oncogene 2010; 29:3545-53. [PMID: 20400975 PMCID: PMC2889129 DOI: 10.1038/onc.2010.111] [Citation(s) in RCA: 173] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Cancer stem cells are responsible for sustaining the tumor and giving rise to proliferating and progressively differentiating cells. However, the molecular mechanisms regulating the process of cancer stem cell (CSC) differentiation is not clearly understood. Recently, we reported the isolation of the epithelial ovarian cancer (EOC) stem cells (type I/CD44+). In this study, we show that type I/CD44+ cells are characterized by low levels of both miR-199a and miR-214, whereas mature EOC cells (type II/CD44-) have higher levels of miR-199a and miR-214. Moreover, these two micro RNAs (miRNAs) are regulated as a cluster on pri-miR-199a2 within the human Dnm3os gene (GenBank FJ623959). This study identify Twist1 as a regulator of this unique miRNA cluster responsible for the regulation of the IKKbeta/NF-kappaB and PTEN/AKT pathways and its association of ovarian CSC differentiation. Our data suggest that Twist1 may be an important regulator of 'stemness' in EOC cells. The regulation of MIR199A2/214 expression may be used as a potential therapeutic approach in EOC patients.
Collapse
|
99
|
Zhang K, Hou R, Niu X, Zhang J, Yin G, Li X, Jia Y. Decreased colony formation of high proliferative potential colony-forming cells and granulocyte-macrophage colony-forming units and increased Hes-1 expression in bone marrow mononuclear cells from patients with psoriasis. Br J Dermatol 2010; 163:93-101. [PMID: 20377586 DOI: 10.1111/j.1365-2133.2010.09790.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
BACKGROUND Psoriasis is a chronic inflammatory disease of the skin. The dysfunctional immunity experienced by patients with psoriasis is believed to influence the bone marrow haematopoietic cells and their surrounding microenvironment. Phagocytes derived from the bone marrow of patients with active psoriasis exhibit enhanced monocytopoietic activity and hyperplasia in vitro. However, direct evidence supporting the hypothesis that bone marrow is involved in the pathogenesis of psoriasis has yet to be established. OBJECTIVES To investigate the involvement of bone marrow in the pathogenesis of psoriasis. METHODS Bone marrow mononuclear cells (BMMNCs) were isolated from patients with psoriasis and healthy individuals. The high proliferative potential colony-forming cells (HPP-CFCs), granulocyte-macrophage colony-forming units (CFU-GM) and erythroid colony-forming units (CFU-E) were cultured in the presence of defined cytokines, and the effects of secreted factors from psoriatic peripheral blood mononuclear cells (PBMCs) on colony formation of normal haematopoietic cells were analysed. Furthermore, the telomere activity of psoriatic and normal BMMNCs was determined using the polymerase chain reaction (PCR)-based telomeric repeat amplification protocol, while the expression of human telomerase reverse transcriptase (hTERT) and HES1 mRNA was detected by reverse transcription-PCR assay. RESULTS The numbers of HPP-CFCs and CFU-GM, but not CFU-E, were significantly reduced in cultured haematopoietic cells from patients with psoriasis. The culture supernatant of PBMCs from patients with psoriasis was found to inhibit the colony formation capacity of HPP-CFCs, CFU-GM and CFU-E of normal haematopoietic cells. We also detected low levels of telomerase activity and hTERT gene expression in psoriatic and control BMMNCs that was statistically similar between the two groups. In contrast, the HES1 gene expression appeared to be significantly elevated in psoriatic BMMNCs (P < 0.05). CONCLUSIONS Together, our results indicate the involvement of bone marrow in the immunopathogenesis of psoriasis, and suggest a mechanism mediated by certain inflammatory or haematopoietic cytokines present in the bone marrow microenvironment. Elevated expression levels of HES1 mRNA suggest a potential role for the Notch signalling pathway in this process.
Collapse
|
100
|
Yin G, Liang YY, Jiang F, Chen H, Wang P, Note R, Mizuseki H, Kawazoe Y. Polarization-induced switching effect in graphene nanoribbon edge-defect junction. J Chem Phys 2009; 131:234706. [DOI: 10.1063/1.3273312] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
|