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Brown J, Chako L, Martinez-Naharro A, Kotecha T, Steriotis A, Xue H, Kellman P, Knight DS, Fontana M. P578Dark blood imaging: shedding light on myocardial disease. Eur Heart J Cardiovasc Imaging 2019. [DOI: 10.1093/ehjci/jez108.015] [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: 11/15/2022] Open
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77
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Brown L, Saunderson CED, Das A, Craven T, Xue H, Knott K, Levelt E, Dall"armellina E, Swoboda PP, Moon J, Greenwood JP, Kellman P, Plein S. P152Assessing myocardial perfusion in heart failure - are we achieving adequate stress? Eur Heart J Cardiovasc Imaging 2019. [DOI: 10.1093/ehjci/jez117.015] [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: 11/13/2022] Open
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Fung K, Kellman P, Mcgrath L, Xue H, Moon JC, Manisty C. P368Paradoxical worsening of myocardial perfusion with rest. Eur Heart J Cardiovasc Imaging 2019. [DOI: 10.1093/ehjci/jez109.009] [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: 11/12/2022] Open
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79
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Kotecha T, Martinez-Naharro A, Little C, Chacko LIZA, Manmathan G, Brown JM, Knight DS, Hawkins PN, Moon JM, Xue H, Lockie T, Rakhit RD, Kellman PN, Patel N, Fontana M. 303Quantitative CMR perfusion mapping to detect microvascular dysfunction in patients without obstructive coronary disease. Eur Heart J Cardiovasc Imaging 2019. [DOI: 10.1093/ehjci/jez119.001] [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: 11/14/2022] Open
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Parke K, Wormmeighton J, Mccann G, Xue H, Kellman P, Arnold R. P421Comparison of left ventricular volumetric assessment by standard steady-state free precession and real time cine imaging. Eur Heart J Cardiovasc Imaging 2019. [DOI: 10.1093/ehjci/jez118.009] [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: 11/13/2022] Open
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81
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Knott K, Augusto JB, Nordin S, Kozor R, Camaioni C, Xue H, Hughes RK, Manisty C, Brown LAE, Ramaswami U, Hughes D, Kellman P, Plein S, Moon JC. 304Quantitative perfusion mapping in Fabry disease. Eur Heart J Cardiovasc Imaging 2019. [DOI: 10.1093/ehjci/jez119.002] [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: 11/14/2022] Open
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Brown L, Saunderson CED, Das A, Craven T, Xue H, Knott K, Levelt E, Moon J, Dall"armellina E, Greenwood JP, Kellman P, Plein S, Swoboda PP. P151Defining the phenotype of heart failure with mid-range ejection fraction by cardiovascular magnetic resonance. Eur Heart J Cardiovasc Imaging 2019. [DOI: 10.1093/ehjci/jez117.014] [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: 11/14/2022] Open
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83
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Martinez Naharro A, Kotecha T, Chacko L, Brown J, Knight DS, Anderson S, Moon J, Gillmore JD, Hawkins PN, Xue H, Kellman PN, Fontana M. P176Fat water gadolinium enhancement imaging in myocarditis: shifting the goalpost. Eur Heart J Cardiovasc Imaging 2019. [DOI: 10.1093/ehjci/jez117.038] [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: 11/14/2022] Open
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84
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Gulsin GS, Athithan L, Parke KS, Wormleighton JV, Singh A, Arnold JR, Xue H, Kellman P, Deshpande A, Mccann GP. P599Relationship between coronary artery calcium and hyperaemic myocardial blood flow in asymptomatic adults with type 2 diabetes. Eur Heart J Cardiovasc Imaging 2019. [DOI: 10.1093/ehjci/jez116.005] [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: 11/13/2022] Open
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85
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Kotecha T, Monteagudo JM, Martinez-Naharro A, Little C, Chacko LIZA, Brown JM, Knight D, Hawkins PN, Moon JM, Xue H, Kellman PN, Patel N, Lockie T, Rakhit RD, Fontana M. 302Redefining assessment of adenosine stress response using CMR perfusion mapping: An alternative to splenic switch off. Eur Heart J Cardiovasc Imaging 2019. [DOI: 10.1093/ehjci/jez119] [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: 11/13/2022] Open
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86
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Hughes RK, Camaioni C, Knott KD, Quinn E, Captur G, Syrris P, Kellman P, Elliott PM, Mohiddin S, Xue H, Lopes L, Moon J. 267Myocardial perfusion defects in genotype-positive hypertrophic cardiomyopathy without left ventricular hypertrophy. Eur Heart J Cardiovasc Imaging 2019. [DOI: 10.1093/ehjci/jez101] [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: 11/14/2022] Open
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87
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Xu S, Zhang J, Xue H, Guo X, Han X, Li T, Guo X, Gao X, Liu Q, Li G. MicroRNA-584-3p reduces the vasculogenic mimicry of human glioma cells by regulating hypoxia-induced ROCK1 dependent stress fiber formation. Neoplasma 2019; 64:13-21. [PMID: 27881000 DOI: 10.4149/neo_2017_102] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
We report in this study that microRNA-584-3p (miR-584-3p) is related to the vasculogenic mimicry (VM) of human glioma cells. Unsurprisingly, the postoperative survival time was significantly prolonged in those glioma patients without VM phenomena compared with those with positive VM. miR-584-3p may function as a potent tumor suppressor by inhibiting VM of malignant glioma. However, the molecular mechanisms underlying these properties remain poorly understood. Our preliminary mechanistic studies revealed that miR-584-3p suppressed the VM by disturbing hypoxia-induced stress fiber formation and migration of glioma cells. Specifically, we defined ROCK1 as a potential functionally relevant target of miR-584-3p involved in this process in glioma cells. Our results demonstrate a tumor suppressor function for miR-584-3p in glioma, where it inhibits the VM of tumor cells by antagonizing hypoxia-induced ROCK1-dependent stress fiber formation. Our findings have potential implications for glioma gene therapy by targeting miR-584-3p and suggest that VM could represent a prognostic indicator for gliomas.
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88
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Liu TT, Li Y, Yao SY, Wang C, Wang M, Liu J, Shi YJ, Xue H. [Effect of individualized antihypertensive therapy on the blood pressure and left ventricular hypertrophy of hypertensive patients with coronary heart disease]. ZHONGHUA YI XUE ZA ZHI 2019; 99:977-982. [PMID: 30955308 DOI: 10.3760/cma.j.issn.0376-2491.2019.13.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the effect of individualized antihypertensive therapy on the blood pressure and left ventricular hypertrophy (LVH) of hypertensive patients with coronary heart disease (CHD). Methods: We conducted a prospective study from Sep. 2014 to Dec. 2015 in Chinese PLA General Hospital. A total of 650 patients complicated with non-dipper or reverse-dipper hypertension and CHD were enrolled. All the participants were divided into non-dipper (n=259) and reverse-dipper (n=391) group according to their 24h ambulatory blood pressure monitoring (ABPM) reports. Patients who took short-acting antihypertensives changed their medicine to long-acting ones. Patients who had already taken long-acting antihypertensives switched to nighttime or added antihypertensives at night. Self-measured home blood pressure was recorded before going to bed and in the morning. All patients were regularly followed up by face-to-face surveys and clinic BP was recorded every 3 months. After 1 year's follow-up, the effect of individualized antihypertensive treatment on circadian rhythm of blood pressure was evaluated by 24h ABPM. The effect of individualized antihypertensive treatment on LVH was evaluated by echocardiography. Results: After 1 year's individualized antihypertensive therapy, the clinic BP and 24h ABPM of the patients were decreased. BP rhythm in 44% of the non-dipper and 57% of the reverse-dipper patients restored to normal. LVH were returned to normal in 44% of the non-dipper patients and and 48% of the reverse dipper patients, respectively. Left ventricular mass index (LVMI) were (59±12) kg/m(2.7) vs (48±10) kg/m(2.7) (P<0.01), and (63±13) kg/m(2.7) vs (48±11) kg/m(2.7) (P<0.01) respectively in non-dipper and reverse-dipper group before and after individualized antihypertensive treatment. Conclusion: Individualized antihypertensive intervention of abnormal blood pressure circadian rhythm can effectively restore the circadian rhythm of blood pressure and reverse LVH in hypertensive patients with CHD.
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Wang XM, Wang J, Zou M, Zheng J, Xue H. [Analysis of the discrepancy of crown-root morphology of central incisors among different skeletal malocclusion using cone-beam CT]. ZHONGHUA KOU QIANG YI XUE ZA ZHI = ZHONGHUA KOUQIANG YIXUE ZAZHI = CHINESE JOURNAL OF STOMATOLOGY 2019; 54:101-106. [PMID: 30695911 DOI: 10.3760/cma.j.issn.1002-0098.2019.02.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the discrepancy of crown-root morphology of upper and lower central incisors in adult patients with different skeletal malocclusions using cone-beam CT (CBCT). Methods: Patients visiting the Department of Orthodontics, College of Stomatology, Xi'an Jiaotong University from January 2015 to December 2017 were selected, including 108 cases (52 males, 56 females, aged from 18 to 30 years, mean age 25.8 years). According to CBCT data and cephalometric analysis, 66 patients with average angle were selected as the sagittal skeletal group, including 24 Class Ⅰ patients, 20 Class Ⅱ and 22 Class Ⅲ patients. In the other selected 66 skeletal Class Ⅰ patients including 21 low angle patients, 24 average angle patients (from the sagittal skeletal Class Ⅰ subgroup) and 21 high angle patients. Invivo 5 software was used to locate the CBCT image three dimensionally and then obtain the middle labio-lingual section of right central incisor. Auto CAD 2007 software was applied to measure the angle formed by the long axis of root and the extension line of the long axis of crown (Collum angle), and the angle between the long axis of crown and the lip tangent line passing through the center of the labial surface of crown (labial surface angle). One-way ANOVA and Scheff were used to analyze the discrepancies among classifications and Pearson correlation analysis was used to determine the correlation between the Collum angles and labial surface angles. Results: Significant differences were found in Collum angles and labial surface angles among different sagittal skeletal patterns (P<0.05). The Collum angle of maxillary central incisors in Class Ⅱ patients was 5.18°±4.97° and the average labial surface angle was 17.78°±3.74°, which were both significantly higher than that of maxillary central incisors in Class Ⅰ and Ⅲ subgroups (P<0.05). Similarly, the above two angles of mandibular central incisors in Class Ⅲ were 5.59°±5.64° and 15.32°±3.05°, which were significantly higher than that of mandibular central incisors in Class Ⅰ and Ⅱ subgroups (P<0.05). There was no significant difference among different vertical skeletal patterns (P>0.05). Notably, the Collum angles of maxillary or mandibular central incisors presented significantly positive correlation with labial surface angles (maxillary: r=0.723, P<0.001; mandibular: r=0.752, P<0.001). Conclusions: The long axis of the crown of the maxillary central incisor in skeletal Class Ⅱ patients and the mandibular central incisor in skeletal Class Ⅲ patients are obviously deviated toward the lingual side relative to the long axis of the root, and correspondingly there is a greater labial surface angle of the crown, which indicates that equivalent positioning deviation during bracket bonding can cause greater torque expression error.
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Wu X, Huang J, Jiang L, Wu H, Cheng Y, Chen C, Xue H. Congenital self-healing reticulohistiocytosis with BRAF V600E mutation in an infant. Clin Exp Dermatol 2019; 44:647-650. [PMID: 30609054 DOI: 10.1111/ced.13880] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/20/2018] [Indexed: 11/30/2022]
Abstract
Congenital self-healing reticulohistiocytosis (CSHR) is a rare disorder characterized by benign skin lesions with a tendency to self-heal. Multiple skin lesions are usually present in CSHR. It is very difficult to distinguish between CSHR and an invasive Langerhans cell histiocytosis. We present a case of a 5-month-old infant girl who had hypopigmented skin lesions distributed over her neck, thorax and torso. The skin lesions regressed spontaneously 2 months after the diagnosis of CSHR and the child has remained in complete remission without any sign of recurrence over a 2-year follow-up. BRAF V600E mutation was detected in lesional cells along with a low Ki-67 proliferative activity of about 6%. BRAF oncogene-induced senescence might contribute to a mechanism of self-regression in CSHR; however, the exact role of the somatic BRAF V600E mutation in CSHR remains to be determined.
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91
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Tsai B, Xue H, Birgersson E, Ollmar S, Birgersson U. Dielectrical Properties of Living Epidermis and Dermis in the Frequency Range from 1 kHz to 1 MHz. JOURNAL OF ELECTRICAL BIOIMPEDANCE 2019; 10:14-23. [PMID: 33584878 PMCID: PMC7531215 DOI: 10.2478/joeb-2019-0003] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Indexed: 06/01/2023]
Abstract
We determine the in-vivo dielectric properties-resistivity and relative permittivity-of living epidermis and dermis of human skin soaked with a physiological saline solution for one minute between 1 kHz and 1 MHz. This is done by fitting approximate analytical solutions of a mechanistic model for the transport of charges in these layers to a training set comprising impedance measurements at two depth settings on stripped skin on the volar forearm of 24 young subjects. Here, the depth settings are obtained by varying the voltage at a second inject on the electrical-impedance-spectroscopy probe. The model and the dielectric properties are validated with a test set for a third depth setting with overall good agreement. In addition, the means and standard deviations of the thicknesses of living epidermis and dermis are estimated from a literature review as 61±7 μm and 1.0±0.2 mm respectively. Furthermore, extensions to resolve the skin layers in more detail are suggested.
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Zheng J, Xue H, Zhang H, Wang L, Zheng L, Wang X, Lin X, Jin S, Wu J. The influence of therapeutic vaccine candidate against HBeAg pEGFP-N1-C (472-507)-ecdCD40L on dendritic cells. Acta Virol 2018; 62:157-163. [PMID: 29895156 DOI: 10.4149/av_2018_205] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Hepatitis B virus (HBV) infection is a major public health problem and immune tolerance is responsible for persistent HBV infection. HBV therapeutic vaccines targeting HBV e antigen (HBeAg) may have an excellent effect in overcoming HBV immune tolerance. Thus, there is urgency for designing therapeutic vaccine candidates that target HBeAg. In this research, we fused the C (472-507) gene sequence of HBV with the extracellular domain of human CD40 ligand sequence and ligated this fused sequence into the pEGFP-N1 vector to construct the recombinant plasmid pEGFP-N1-C (472-507)-ecdCD40L. Then, the dendritic cells (DCs) generated from human peripheral blood were transfected with this recombinant plasmid. After this, the phenotype and function of DCs were assessed. Compared with the three control groups of pEGFP-N1-C (472-507), pEGFP-N1 and phosphate buffered saline (PBS), we found that DCs transfected with the recombinant plasmid pEGFP-N1-C (472-507)-ecdCD40L enhanced the expression of costimulatory molecules (CD80, CD86 and HLA-DR) and secretion of cytokine IL-12p70. Furthermore, the capacity of inducing the proliferation of allogeneic lymphocytes was also improved. Our study validated that transfecting DCs with recombinant plasmid pEGFP-N1-C (472-507)-ecdCD40L could activate DCs and enhance their functions. Therefore, C (472-507)-ecdCD40L fusion sequence may be a promising vaccine candidate for chronic hepatitis B therapythat targets HBeAg.
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93
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Xue H, Chong Y, Jiang ZD, Liu ZL, Ding L, Yang SL, Wang L, Xiang WP. [Etiological analysis on patients with vertigo or dizziness]. ZHONGHUA YI XUE ZA ZHI 2018; 98:1227-1230. [PMID: 29747309 DOI: 10.3760/cma.j.issn.0376-2491.2018.16.008] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore the spectrum of causes for patients with vertigo or dizziness in the Department of Neurology, and provide a reference for diagnosis and treatment of patients with vertigo or dizziness. Methods: Clinical data of patients in the Department of Neurology, Baotou Central Hospital between January 2016 and September 2017 was retrospectively analyzed. The target group under study was diagnosed based on the uniform diagnostic criteria. Results: A total of 9 200 patients with a chief complaint of vertigo or dizziness were included. The ratio of male to female was 1∶1.8, with an age range of 19 to 85 years. The different etiology was as follows: benign paroxysmal positional vertigo (BPPV) (3 148 cases, 34.22%), persistent postural-perceptual dizziness (PPPD) (2 006 cases, 21.80%), vertigo caused by cerebrovascular diseases (1 463 cases, 15.90%), vestibular neuritis (741 cases, 8.05%), vestibular migraine (536 cases, 5.83%), vestibular paroxysmia (336 cases, 3.65%), Ménière disease (187 cases, 2.03%), drug-induced vertigo (96 cases, 1.04%), neurological degenerative diseases (74 cases, 0.80%), sudden sensorineural hearing loss (51 cases, 0.55%), multiple sclerosis and neuromyelitis optica (21 cases, 0.23%), other reasons (22 cases, 0.24%), unknown reasons (519 cases, 5.64%). Conclusions: Dizziness is resulted from various causes, and BPPV is the most common reason. Vertigo caused by cerebrovascular diseases appears to gradually increase along with age. PPPD is very common in clinical practice, so clinicians needs to be highly aware of BPPV and PPPD. Although those dizziness diseases have a low incidence, they should not be ignored. There are still certain proportion of vertigo patients whose diagnosis are undetermined.
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Xue H, Slivka L, Igusa T, Huang TT, Wang Y. Applications of systems modelling in obesity research. Obes Rev 2018; 19:1293-1308. [PMID: 29943509 DOI: 10.1111/obr.12695] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/27/2017] [Revised: 02/20/2018] [Accepted: 02/28/2018] [Indexed: 12/22/2022]
Abstract
Obesity is a complex system problem involving a broad spectrum of policy, social, economic, cultural, environmental, behavioural, and biological factors and the complex interrelated, cross-sector, non-linear, dynamic relationships among them. Systems modelling is an innovative approach with the potential for advancing obesity research. This study examined the applications of systems modelling in obesity research published between 2000 and 2017, examined how the systems models were developed and used in obesity studies and discussed related gaps in current research. We focused on the applications of two main systems modelling approaches: system dynamics modelling and agent-based modelling. The past two decades have seen a growing body of systems modelling in obesity research. The research topics ranged from micro-level to macro-level energy-balance-related behaviours and policies (19 studies), population dynamics (five studies), policy effect simulations (eight studies), environmental (10 studies) and social influences (15 studies) and their effects on obesity rates. Overall, systems analysis in public health research is still in its early stages, with limitations linked to model validity, mixed findings and its actual use in guiding interventions. Challenges in theory and modelling practices need to be addressed to realize the full potential of systems modelling in future obesity research and interventions.
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Xue H, Zhan Z, Zhang K, Fu YV. Visualizing the Interaction Between the Qdot-labeled Protein and Site-specifically Modified λ DNA at the Single Molecule Level. J Vis Exp 2018:57967. [PMID: 30080193 PMCID: PMC6126486 DOI: 10.3791/57967] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
The fluorescence microscopy has made great contributions in dissecting the mechanisms of complex biological processes at the single molecule level. In single molecule assays for studying DNA-protein interactions, there are two important factors for consideration: the DNA substrate with enough length for easy observation and labeling a protein with a suitable fluorescent probe. 48.5 kb λ DNA is a good candidate for the DNA substrate. Quantum dots (Qdots), as a class of fluorescent probes, allow long-time observation (minutes to hours) and high-quality image acquisition. In this paper, we present a protocol to study DNA-protein interactions at the single-molecule level, which includes preparing a site-specifically modified λ DNA and labeling a target protein with streptavidin-coated Qdots. For a proof of concept, we choose ORC (origin recognition complex) in budding yeast as a protein of interest and visualize its interaction with an ARS (autonomously replicating sequence) using TIRFM. Compared with other fluorescent probes, Qdots have obvious advantages in single molecule studies due to its high stability against photobleaching, but it should be noted that this property limits its application in quantitative assays.
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Zhang FX, Xi J, Zhang Y, Tong Y, Xue H, Huang R, Trautmann C, Weber WJ. Local structure and defects in ion irradiated KTaO 3. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2018; 30:145401. [PMID: 29469815 DOI: 10.1088/1361-648x/aab1a2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The modification of the local structure in cubic perovskite KTaO3 irradiated with 3 MeV and 1.1 GeV Au ions is studied by Raman and x-ray absorption spectroscopy, complemented by density functional theory (DFT) calculations. In the case of irradiation with 3 MeV Au ions where displacement cascade processes are dominant, the Ta L3-edge x-ray absorption measurements suggest that a peak corresponding to the Ta-O bonds in the TaO6 octahedra splits, which is attributed to the formation of TaK antisite defects that are coupled with oxygen vacancies, V O. This finding is consistent with the DFT calculations. Under irradiation with 1.1 GeV ions, the intense ionization and electronic energy deposition lead to a blue shift and an intensity reduction of active Raman bands. In the case of sequential irradiations, extended x-ray absorption fine structure measurements reveal a decrease in concentration of coupled TaK-V O defects under subsequent irradiation with 1.1 GeV Au ions.
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Chai Y, Xue H, Wu Y, Du X, Zhang Z, Zhang Y, Zhang L, Zhang S, Zhang Z, Xue Z. MicroRNA-216b-3p inhibits lung adenocarcinoma cell growth via regulating PDZ binding kinase/T-LAK-cell-originated protein kinase. Exp Ther Med 2018; 15:4822-4828. [PMID: 29805502 PMCID: PMC5952093 DOI: 10.3892/etm.2018.6020] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2017] [Accepted: 12/01/2017] [Indexed: 01/03/2023] Open
Abstract
Numerous studies have reported that microRNA (miR)-216b, as a tumor suppressor, is downregulated in a variety of cancer types. PDZ binding kinase (PBK)/T-LAK-cell-originated protein kinase (TOPK) is highly expressed in various types of human cancer, including lung cancer. The expression of miR-216b-3p and its potential roles in lung adenocarcinoma are still unclear and no research has been conducted into the association between miR-216b-3p and PBK/TOPK. Thus, the present study aimed to investigate the expression and role of miR-216b-3p in lung adenocarcinoma and to explore whether PBK/TOPK is involved in the underlying mechanisms of lung adenocarcinoma. The expression of miR-216b-3p in lung adenocarcinoma cell lines was detected. PBK/TOPK protein expression levels were also determined within lung adenocarcinoma cell lines. To investigate the association between miR-216b-3p and PBK/TOPK, TargetScan analysis was performed; PBK was predicted to be a potential target gene of miR-216b-3p, and a dual luciferase reporter assay was applied to confirm this prediction. To investigate the role of miR-216b-3p in lung adenocarcinoma, a lung adenocarcinoma cell line (GLC-82) was transfected with miR-216b-3p mimic or its negative control. An MTT assay was applied to detect cell proliferation, and cell apoptosis was analyzed by flow cytometry. Western blot analysis was performed to determine the protein expression levels of associated proteins. The results of the present study suggested that miR-216b-3p was downregulated in lung adenocarcinoma cell lines and PBK/TOPK was highly expressed in lung adenocarcinoma cells. miR-216b-3p directly targets PBK and negatively regulates its expression. miR-216b-3p overexpression may inhibit GLC-82 cell proliferation and induce cell apoptosis. In addition, miR-216b-3p overexpression may increase p53 and p21 expression, and prevent p38 MAPK activation. These effects on GLC-82 cells caused by miR-216b-3p overexpression may be eliminated by PBK/TOPK overexpression. In conclusion, miR-216b-3p was downregulated in lung adenocarcinoma and may function as a tumor suppressor by inhibiting cell growth via regulating PBK/TOPK expression.
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Zhang Y, Gong Y, Xue H, Xiong J, Cheng G. Vitamin D and gestational diabetes mellitus: a systematic review based on data free of Hawthorne effect. BJOG 2018; 125:784-793. [PMID: 29244241 DOI: 10.1111/1471-0528.15060] [Citation(s) in RCA: 71] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/21/2017] [Indexed: 11/28/2022]
Abstract
BACKGROUND Gestational diabetes mellitus (GDM) is an increasingly prevalent disorder, associated with low blood vitamin D level. OBJECTIVES To evaluate the relationship between vitamin D and GDM. SEARCH STRATEGY EMBASE, MEDLINE, Cochrane Library and China Biology Medicine disc were searched up to May 2017. The references of previous studies were screened. SELECTION CRITERIA Observational studies on the relationship between vitamin D and GDM free from Hawthorne effect and randomised controlled trials of vitamin D supplementation during pregnancy for preventing or treating GDM were included. DATA COLLECTION AND ANALYSIS Data and information of included articles were extracted by duplicate using piloted tables. Newcastle-Ottawa Scale and Cochrane Handbook were used for quality assessment. Random-effects models were used for meta-analyses. Heterogeneity tests, sensitivity analysis and analysis of publication bias were conducted. MAIN RESULTS Eighty-seven observational studies and 25 randomised controlled trials involving 55 859 and 2445 women, respectively, were included. Low blood vitamin D level during pregnancy was associated with a higher risk of GDM (OR 1.850, 95% CI 1.471-2.328). Blood vitamin D level for women with GDM were lower than in the control women. Blood vitamin D level was associated with fasting plasma glucose (FPG) and homeostasis model of assessment for insulin resistance index (HOMA-IR) (r = -0.100 and r = -0.351), whereas the correlation between blood vitamin D level and fasting insulin (FINS) might be concealed by publication bias. Vitamin D intervention during pregnancy could change the blood levels of vitamin D, FINS, FPG, HOMA-IR, glutathione, C-reactive protein and lipid. CONCLUSIONS Low blood vitamin D level could increase the risk of GDM, and vitamin D supplementation during pregnancy could ameliorate the condition of GDM. TWEETABLE ABSTRACT Low blood vitamin D increases gestational diabetes mellitus (GDM) risk. Vitamin D supplementation ameliorates GDM condition.
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Xue H, Luo L, Yao YT, Wei LL, Deng SP, Huang XL. Integrated analysis of the RNA-Seq data of liver hepatocellular carcinoma. Neoplasma 2018; 65:97-103. [PMID: 29322794 DOI: 10.4149/neo_2018_170212n98] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The present study aimed to explore the genetic changes involved in the liver hepatocellular carcinoma (HCC) development. The RNA-Seq data of 212 HCC tissue samples and 50 normal tissue samples were downloaded using TCGA-Assembler. A total of 4 subgroups were obtained, and 4167, 6279, 5379, and 2548 DEGs were screened in group 1, group 2, group 3, and group 4, respectively. Enrichment analysis found that cell cycle, metabolism, and translation related terms were the most significantly changed functions and pathways. There were 454 genes (1114 pairs), 803 genes (722 pairs), and 788 genes (724 pairs), separately interacted in the condition specific PPI network of group 1, 2, 3, and 4, with MMP2, ATNXN1, F2, and HDAC1 as the hub genes. What's more, using these genes, total 7, 20, 198, and 1 subtype related miRNAs; 35, 50, 47, and 17 subtype related TFs; 1, 1, 0, and 2 subtype related drugs were screened in group 1, 2, 3, and 4, respectively. The integrated biological analysis on RNA-Seq data provided substantial of bio-molecular related to the HCC development. miR-147b, SP1, and Riboflavin were the subtype-related regulator/drug for HCC. The study about the big data of HCC RNA-Seq data reveals the intrinsic gene expression pattern of the tumor, which provides a novel perspective to understand the heterogeneity of pathogenesis in HCC tumorigenesis.
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Pan T, Yan P, Yang M, Wang H, Ali I, Ayub M, Zhang JH, Wang JJ, Li E, Xue H, Zhang BW, Wu XB. Genetic differentiation of regional populations of the widespread Asiatic toad (Bufo gargarizans), as revealed by development of novel microsatellite markers. AUST J ZOOL 2018. [DOI: 10.1071/zo18059] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Dispersal is a key component of a species’ life history, by influencing population persistence, genetic structure, adaptation and maintenance of genetic diversity. The Asiatic toad (Bufo gargarizans) is a widespread species in east Asia. However, we still have no knowledge of what kind of geographical scale equates to genetic differentiation within B. gargarizans. In this study, the population genetics of B. gargarizans was studied at five localities, with the Yangtze River running through the sampling area, in order to detect the level of genetic differentiation and the natural barriers to the species’ dispersal on a small geographic scale, by means of the development and use of novel microsatellite loci. These markers revealed a relatively high level of genetic diversity. Distinct genetic structure among populations in B. gargarizans was observed, as described by genetic distance, AMOVA, PCA and Geneland results. A weak but significant positive correlation between genetic distance and geographical distance. The combination of these findings suggests that the Yangtze River and geographic distance may act as effective barriers for B. gargarizans. These results serve as benchmark data for understanding the impacts of dispersal barriers and continued landscape research on B. gargarizans.
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