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Zhang X, Tian X, Hu Y, Zhang C, Wei C, Yang X. Oral peripheral ameloblastoma: A retrospective series study of 25 cases. Med Oral Patol Oral Cir Bucal 2018; 23:e277-e281. [PMID: 29680843 PMCID: PMC5945233 DOI: 10.4317/medoral.22225] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2017] [Accepted: 01/13/2018] [Indexed: 11/23/2022] Open
Abstract
Background Peripheral ameloblastoma (PA) is a rare and unusual variant of odontogenic tumor, which was described only in isolated case reports in literature. The objective of this study was to investigate the clinical profile, treatment and outcome of PA in a consecutive case series. Material and Methods A total of 25 patients with histologically confirmed PA from 2001 to 2015 were retrospectively reviewed in our institution. Results Of the 25 patients, 22 males and 3 females were identified (male: female = 7.3:1). The average age was 48.3 years (range 11-81 years) with lingual or palate gingival region being the most common site (76%). The course of disease was less than 6 months in 92.0% (23/25) of all patients (mean, 3.3 months; range, 1-12 months). All patients underwent complete surgical removal of the lesions, and one lesion recurrence occurred during the follow-up period. Conclusions The clinical profile and outcome of PA from Eastern China were elucidated in this retrospective analysis based on a case series. Our experience may provide some insights into the differential diagnosis and clinical management of PA. The first choice of treatment is surgical excision, which can result in a good prognosis. Key words:Peripheral ameloblastoma, clinical profile, outcome.
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Lin XN, Tian X, Li W, Sun J, Wei F, Feng W, Huang ZC, Tian XH. Highly Efficient Glioma Targeting of Tat Peptide-TTA1 Aptamer-Polyephylene Glycol-Modified Gelatin-Siloxane Nanoparticles. JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY 2018; 18:2325-2329. [PMID: 29442899 DOI: 10.1166/jnn.2018.14379] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Gliomas are the most common type of intracranial malignant tumor; however, current treatment approaches are often ineffective due to limited penetration of genes or drugs through the blood-brain barrier (BBB). Here we describe the synthesis of gelatin-siloxane nanoparticles (GS NPs) as candidate gene carriers through a two-step sol-gel process. To increase the efficiency of glioma targeting, human immunodeficiency virus-derived Tat, tumor-targeting aptamer (TTA)1, and polyethylene glycol (PEG) were conjugated to the GS NPs to generate Tat-TTA1-PEG-GS NPs. In vivo imaging revealed that these modified NPs not only evaded capture by the reticulo-endothelial system, but were able to cross the BBB to reach gliomas. Our results suggest that Tat-TTA1-PEG-GS NPs are a new type of non-viral vector that can deliver therapeutic DNA or drugs for highly efficient glioma treatment.
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Wang B, Liu X, Liu H, Guo J, Zhang T, Zhou N, Ma Y, Yu H, Chen L, Ren Z, Fan K, Tian X. Differential expressions of MDM2 and TAP73 in cancer and cancer-adjacent tissues in patients with non-small-cell lung carcinoma. Pulmonology 2018; 24:S2173-5115(17)30153-7. [PMID: 29452959 DOI: 10.1016/j.rppnen.2017.08.008] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2017] [Revised: 08/04/2017] [Accepted: 08/08/2017] [Indexed: 01/15/2023] Open
Abstract
AIM To investigate the differences in mRNA and protein expressions of MDM2 (mouse double minute 2 homolog) and P73 in cancer and cancer-adjacent tissues in patients with non-small-cell lung carcinoma (NSCLC). MATERIALS AND METHODS We compared the protein expressions of MDM2 and P73 in lung cancer and cancer-adjacent tissues in NSCLC patients by IHC (immunohistochemistry) and WB (Western blot). We divided the NSCLC patients into two subgroups, adenocarcinoma and squamous carcinoma. The mRNA expressions of two main isoforms of P73, TAP73 and DNP73, as well as the ratio of DNP73/TAP73 were analyzed by qPCR (quantitative real-time PCR) in the two tissues in all NSCLC patients and in patients with adenocarcinoma or squamous carcinoma, respectively. RESULTS WB results did not show significant differences in MDM2 and P73 protein expressions in lung cancer and cancer-adjacent tissues. However, IHC results indicated that MDM2 expression significantly increased in cancer tissues in female patients, but not male patients. In addition, TAP73 mRNA expression significantly increased in cancer tissues in all NSCLC patients (p=0.002) and in patients with adenocarcinoma (p=0.01); while there was no significant difference in DNP73 mRNA expression. Hence the fold-change of DNP73/TAP73 ratio significantly decreased (p=0.0003) in cancer tissues in all NSCLC patients and in patients with adenocarcinoma. CONCLUSIONS TAP73 mRNA expression significantly increased in cancer tissues than cancer-adjacent tissues in all NSCLC patients and in patients with adenocarcinoma. Meanwhile, the fold-change of DNP73/TAP73 ratio was similar to TAP73. MDM2 protein expression significantly increased in cancer tissues in female NSCLC patients.
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Tian X, Zhang B, Jia Y, Wang C, Li Q. Retinal changes following rapid ascent to a high-altitude environment. Eye (Lond) 2018; 32:370-374. [PMID: 28912514 PMCID: PMC5811714 DOI: 10.1038/eye.2017.195] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2017] [Accepted: 07/26/2017] [Indexed: 01/26/2023] Open
Abstract
PurposeTo determine what impact rapid ascension to a high-altitude environment has on the retina with the aim of preventing and treating high-altitude oculopathy.Patients and methodsParticipants in the study were members of the Chinese military assigned to the high-altitude environment of the Tibetan plateau. Ninety-one participants were enrolled in the study. Optical coherence tomography was used to measure the thickness of retina-related indicators. Measurements were taken before and after exposure to the high-altitude environment and upon return to the baseline altitude.ResultsFollowing exposure to the high-altitude environment in Tibet, there was a significant increase in retinal nerve fiber layer (RNFL) thickness in the temporal and nasal quadrants of the optic disc, whilst a significant decrease in RNFL thickness in the inferior optic disc was also observed. A significant increase in RNFL thickness in the superior and inferior macula was also evident, along with a significant increase in the ganglion cell layer thickness in the superior macula. Upon return to the baseline altitude, all measurements returned to baseline levels except for the RNFL of the inferior macula, which was significantly thicker. Pathological changes were also documented in the eyes of nine participants upon returning to baseline altitude, including ischemic optic neuropathy, myopia, and cortical amaurosis.ConclusionsThe high-altitude environment can have a negative impact on the health of the retina and may contribute to the incidence of various eye diseases. This study deepens the understanding of what impact a high-altitude environment has on retina and provides reliable data for blindness prevention and treatment.
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Liu C, Li J, Cui Z, Niu L, Cui J, Tian X, Shi Y. Kawasaki disease: multiple giant coronary aneurysms intervention and pacemaker implantation due to complete heart block-a case report. J Thorac Dis 2018; 10:E108-E112. [PMID: 29607197 DOI: 10.21037/jtd.2018.01.13] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Early intravenous immunoglobulin (IVIG) is the standard treatment for Kawasaki disease (KD) to reduce the incidence of coronary aneurysms. Patients with atypical presentation or who live in a rural area are less likely to receive treatment in the early stage of presentation and are more likely to develop severe complications. There is little consensus on how to treat coronary aneurysms effectively in the acute or subacute stage especially when giant aneurysms develop that compromise cardiac function. This case study is of a 19-month-old girl who initially was not treated as KD and developed multivessel giant coronary artery aneurysms (CAAs) (>8 mm), acute myocardial infarction, and complete heart block despite late intravenous IVIG administration. Multiple attempts of percutaneous coronary intervention (PCI) failed to open the occlusion in the right artery; therefore, bradycardia persisted. The girl received a permanent pace-maker and was doing well at 12-month follow up.
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Wang Z, Li M, Wang Y, Xu D, Wang Q, Zhang S, Zhao J, Su J, Wu Q, Shi Q, Leng X, Zhang W, Tian X, Zhao Y, Zeng X. Long-term mortality and morbidity of patients with systemic lupus erythematosus: a single-center cohort study in China. Lupus 2018; 27:864-869. [PMID: 29308727 DOI: 10.1177/0961203317751852] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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Duan J, Flock K, Zhang M, Jones A, Pillai SM, Hoffman ML, Jiang H, Zinn SA, Reed SA, Govoni K, Jue NK, O'Neill R, Jiang Z, Tian X. 109 Dosage Compensation of the X Chromosome in Ovine Embryos, Late Gestation, and Adult Somatic Tissues. Reprod Fertil Dev 2018. [DOI: 10.1071/rdv30n1ab109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Deviations from proper gene dosage of the autosome range from severe to lethal consequences in mammals. Eutherian males (XY), however, have reduced gene dosage compared with females (XX) due to a single X and deteriorating Y chromosome. This dosage imbalance is resolved through X chromosome dosage compensation, according to Ohno’s hypothesis: X-linked gene expression is doubled in both males and females to balance expression of the X chromosome and autosomes. To compensate for doubled X chromosome expression in females, X chromosome inactivation (XCI) inactivates a single X chromosome in each cell. Although these mechanisms have been well studied in mice and humans, controversies exist due to the analysis and interpretation of RNA sequencing data. Here we described X chromosome dosage compensation in the sheep. Twelve ewes were fed 100% (control), 60% (restricted), or 140% (overfed) of the National Research Council requirements for a ewe pregnant with twins (NRC, 1985; Nutrient Requirements of Sheep, 6th ed.). Day 135 brain, lung, and kidney tissues were collected from fetuses of the control, restricted, and overfed groups (n = 7, 4, and 4; respectively). RNA seq libraries were prepared using the Illumina TruSeq stranded mRNA kit and sequenced on the NextSEqn 500 (Illumina Inc., San Diego, CA, USA). Two additional RNA-seq datasets were downloaded from Sequence Read Archive (SRA), including Day 14 embryos (PRJNA254105), and adult and juvenile heart, brain, liver, muscle, rumen, and female- and male-specific tissues (PRJEB6169). The RNA-seq data were trimmed and mapped to the ovine reference genome assembly Oar_v4.0 using Hisat2 (version 2.0.5; https://ccb.jhu.edu/software/hisat2/index.shtml) aligner. The mRNA level of each gene was estimated by transformed transcripts per kilobase million (TPM) and was quantified using IsoEM (version 1.1.4; http://dna.engr.uconn.edu/). The relative expression of X to autosomal (A)(RXE) was calculated using RXE = log2(X expression) – log2(A expression) with an average of 486 X-linked genes and 13,001 autosomal genes after TPM >1 filtering. RXE ≥0 (or X:A ratio ≥ 1); <0, = –1 indicate complete, incomplete, or no dosage compensation; respectively. Control, restricted, and overfed ovine fetal somatic tissues displayed incomplete dosage compensation. Incomplete dosage compensation was also observed in juvenile and adult somatic major organs and female specific tissues. Brain tissues, apart from the cerebellum, displayed complete dosage compensation with an RXE range of 0 to 0.16. An interesting pattern was observed in the male specific tissues with complete dosage compensation in the epididymis (RXE = 0.32) and incomplete dosage compensation in the testes (RXE = –0.84). No significant RXE differences were observed between ovine female and male somatic tissues, supporting Ohno’s hypothesis of balanced expression of X-linked genes to autosomal genes. Our results indicate that a mechanism for dosage compensation exists in the sheep, although it is largely incomplete.
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Xueting L, Rehman MU, Zhang H, Tian X, Wu X, Mehmood K, Zhou D. Protective effects of Nano-elemental selenium against chromium-vi-induced oxidative stress in broiler liver. J BIOL REG HOMEOS AG 2018; 32:47-54. [PMID: 29504364] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The valuable role of selenium in mitigation of oxidative stress and heavy metal toxicity is well-known. Thus, the aim of the current study on broiler chickens was to examine whether nano elemental selenium (Nano-Se) supplementation can reduce the effects of chromium VI (K2Cr2O7) toxicity. For this purpose, a total of 150, one-day-old broiler chickens were allotted to five groups with three replicates: control group (standard diet), poisoned group (K2Cr2O7 via drinking water), protection group (K2Cr2O7 + Nano- Se), cure group (K2Cr2O7 for initial 2 weeks and then Nano-Se), and prevention group (opposite to the cure group). The broilers were detected by the activities of marker enzymes and oxidative stress markers including, aspartate aminotransferase (AST), alanine transaminase (ALT), gamma-glutamyl transferase (GGT) and superoxide dismutase (SOD), glutathione peroxidase (GSH-px), malondialdehyde (MDA), respectively. The (K2Cr2O7 administration caused histopathological damage in the liver of the chickens. Moreover, changes in serum biochemical indicators and oxidative stress parameters were also observed. Nano-Se supplementation increased the levels of GSH-px but reduced the activities of SOD, MDA, GGT, ALT and AST in the experimental groups (P less than 0.05). Our results showed that Nano-Se plays a protective role by preventing the oxidative stress induced by the chromium VI in broiler chickens.
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Chen P, Sun S, Zeng K, Li C, Wen J, Liang J, Tian X, Jiang Y, Zhang J, Zhang S, Han K, Han C, Zhang X. Exome sequencing identifies a TCF4 mutation in a Chinese pedigree with symmetrical acral keratoderma. J Eur Acad Dermatol Venereol 2017; 32:1204-1208. [PMID: 28921696 DOI: 10.1111/jdv.14591] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2017] [Accepted: 08/01/2017] [Indexed: 11/28/2022]
Abstract
BACKGROUND Symmetrical acral keratoderma (SAK) is a rare skin disorder and its pathogenesis and inheritability are unknown. OBJECTIVES To investigate the inheritance and pathogenesis of SAK. METHODS Four SAK cases occurred in a four-generation Chinese family. Exome sequencing identified SNPs with potential SAK-related mutations, and a potentially responsible gene transcription factor 4 (TCF4) was identified. TCF4 was then sequenced in all 11 family members, and pedigree analysis was performed. Histopathology and immunohistochemistry evaluated TCF4 expression in skin lesions. The gene mutation was investigated in human keratinocytes for keratin-related protein expression. RESULTS A novel heterozygous missense mutation, c.85C>A (p.Pro29Thr) was found in TCF4. The mutation showed autosomal dominant inheritance and perfectly cosegregated with the SAK phenotype in all family members. In skin lesions, TCF4 was present in the cytoplasm and membranes of the basal layer, the stratum spinosum and the stratum granulosum of the epidermis. The mutant TCF4 induced overexpression of differentiation markers including KRT1, KRT14, loricrin and involucrin. CONCLUSIONS A SAK-related gene mutation in TCF4 may function through transcriptional regulation of keratin.
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Wang J, Li WY, Li YJ, Yang DH, Huo H, Jin XF, Niu YY, Tian X, Zhang ZH, Chen Y, Gao ZQ. [Laryngeal endoscopic cricopharyngeal myotomy for cricopharyngeal achalasia post stroke]. ZHONGHUA ER BI YAN HOU TOU JING WAI KE ZA ZHI = CHINESE JOURNAL OF OTORHINOLARYNGOLOGY HEAD AND NECK SURGERY 2017; 52:729-732. [PMID: 29050088 DOI: 10.3760/cma.j.issn.1673-0860.2017.10.003] [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 explore the safety and validity of endoscopic cricopharyngeal myotomy in patients with cricopharyngeal achalasia. Methods: A total of 19 patients with cricopharyngeal achalasia suffered from sustained dysphagia were enrolled in this study. The patients were divided into transcervical cricopharyngeal myotomy(CPM) group and endoscopic CPM (ECPM) group. Swallowing function and complications were evaluated.SPSS7.0 software was used to analyze the data. Results: The swallowing function improved significantly in seven patients in ECPM group, and 9 patients improved in CPM group.The video fluoroscopic swallowing study(VFSS)-swallowing score, VFSS-aspiration score and drinking test score were (3.1±1.1), (3.4±0.8) and (2.0±0.6)in post-ECPM, (3.4±1.4), (3.0±0.9) and (2.2±0.6)in post-CPM. No statistical difference was found in validity between CPM group and ECPM group(t=-0.435, t=1.086, t=-0.607, P>0.05). No statistical difference was observed on the occurrence of complication between two groups. Only one patient had subcutaneous emphysema after operation in ECPM. Conclusions: New surgical instruments and endoscopic surgical technique were safe and effective for cricopharyngeal achalasia. Because these instruments are cheaper, laryngeal endoscopic cricopharyngeal myotomy is easier to be popularized more easily than microscopic laser assistted CPM.
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Liang W, Tian X, Yuo C, Chen W, Kan T, Su Y, Nishino I, Wong L, Jong Y. Congenital muscular dystrophy in Taiwan: a referral center experience. Neuromuscul Disord 2017. [DOI: 10.1016/j.nmd.2017.06.072] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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112
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Tang J, Chen X, Liu S, Tian X. HLA-B*40:356, identified by next-generation sequence based typing in a Chinese tuberculosis patient. HLA 2017; 90:312-313. [PMID: 28734101 DOI: 10.1111/tan.13103] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2017] [Revised: 07/18/2017] [Accepted: 07/18/2017] [Indexed: 11/30/2022]
Abstract
HLA-B*40:356 differs from B*40:02:01 by only one nucleotide transition, C>A 1040 in exon 6.
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Wang C, Qiao X, Tian X, Liu N, Dong L, Kane R. FRAILTY. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.2948] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Baghbaderani BA, Syama A, Sivapatham R, Pei Y, Mukherjee O, Tian X, Tran H, Menendez L, Fellner T, Zeng X, Rao M. Assay development and cell characterization challenges of human induced pluripotent stem cells for cell therapy applications. Cytotherapy 2017. [DOI: 10.1016/j.jcyt.2017.02.223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Tian X, Tian X, Huo R, Chang Q, Zheng G, Du Y, Chen Y, Niu B. Bacillus Calmette-Guerin alleviates airway inflammation and remodeling by preventing TGF-β 1 induced epithelial-mesenchymal transition. Hum Vaccin Immunother 2017; 13:1758-1764. [PMID: 28441064 DOI: 10.1080/21645515.2017.1313366] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
Abstract
Bacillus Calmette-Guerin (BCG) is a potent agent for the prevention of tuberculosis. Current studies have regarded BCG as an immunomodulator. However, there is little information on whether it can be used to inhibit airway inflammation and airway remodeling caused by asthma. Therefore, in this study, we investigate the role of epithelial-mesenchymal transition (EMT) in airway inflammation and airway remodeling as well as the possible therapeutic mechanism of BCG for the treatment of asthma. Wistar rats were sensitized and challenged by ovalbumin for 2 weeks or 8 weeks. BCG was subcutaneously administered daily before every ovalbumin challenge to determine its therapeutic effects. The 2 weeks model group showed extensive eosinophilia, chronic inflammatory responses, bronchial wall thickening, airway epithelium damage, increased levels of transforming growth factor β 1 (TGF-β1) in both bronchoalveolar lavage fluid and sera, decreased expression of epithelial marker E-cadherin, and increased expressions of mesenchymal markers α-smooth muscle actin (α-SMA) and Fibronectin (Fn). Except for inflammatory responses, all responses were more significant in the 8 weeks model group which displayed characteristics of airway remodeling including subepithelial fibrosis, smooth muscle hypertrophy, and goblet cell hyperplasia. When compared with the model groups, BCG administration inhibited airway inflammation and airway remodeling, decreased TGF-β1 levels, upregulated expression of E-cadherin, and downregulated expression of α-SMA and Fn. The present study suggests for the first time that increased secretion of TGF- β1 induced by asthmatic chronic inflammation may result in EMT, which is one of the most important mechanisms of airway inflammation and airway remodeling seen with asthma. BCG alleviates airway inflammation and airway remodeling by preventing TGF-β1 induced EMT, therefore BCG may be a new therapy for treating asthma.
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Adamson P, Aliaga L, Ambrose D, Anfimov N, Antoshkin A, Arrieta-Diaz E, Augsten K, Aurisano A, Backhouse C, Baird M, Bambah BA, Bays K, Behera B, Bending S, Bernstein R, Bhatnagar V, Bhuyan B, Bian J, Blackburn T, Bolshakova A, Bromberg C, Brown J, Brunetti G, Buchanan N, Butkevich A, Bychkov V, Campbell M, Catano-Mur E, Childress S, Choudhary BC, Chowdhury B, Coan TE, Coelho JAB, Colo M, Cooper J, Corwin L, Cremonesi L, Cronin-Hennessy D, Davies GS, Davies JP, Derwent PF, Desai S, Dharmapalan R, Ding P, Djurcic Z, Dukes EC, Duyang H, Edayath S, Ehrlich R, Feldman GJ, Frank MJ, Gabrielyan M, Gallagher HR, Germani S, Ghosh T, Giri A, Gomes RA, Goodman MC, Grichine V, Group R, Grover D, Guo B, Habig A, Hartnell J, Hatcher R, Hatzikoutelis A, Heller K, Himmel A, Holin A, Hylen J, Jediny F, Judah M, Kafka GK, Kalra D, Kasahara SMS, Kasetti S, Keloth R, Kolupaeva L, Kotelnikov S, Kourbanis I, Kreymer A, Kumar A, Kurbanov S, Lang K, Lee WM, Lin S, Liu J, Lokajicek M, Lozier J, Luchuk S, Maan K, Magill S, Mann WA, Marshak ML, Matera K, Matveev V, Méndez DP, Messier MD, Meyer H, Miao T, Miller WH, Mishra SR, Mohanta R, Moren A, Mualem L, Muether M, Mufson S, Murphy R, Musser J, Nelson JK, Nichol R, Niner E, Norman A, Nosek T, Oksuzian Y, Olshevskiy A, Olson T, Paley J, Pandey P, Patterson RB, Pawloski G, Pershey D, Petrova O, Petti R, Phan-Budd S, Plunkett RK, Poling R, Potukuchi B, Principato C, Psihas F, Radovic A, Rameika RA, Rebel B, Reed B, Rocco D, Rojas P, Ryabov V, Sachdev K, Sail P, Samoylov O, Sanchez MC, Schroeter R, Sepulveda-Quiroz J, Shanahan P, Sheshukov A, Singh J, Singh J, Singh P, Singh V, Smolik J, Solomey N, Song E, Sousa A, Soustruznik K, Strait M, Suter L, Talaga RL, Tamsett MC, Tas P, Thayyullathil RB, Thomas J, Tian X, Tognini SC, Tripathi J, Tsaris A, Urheim J, Vahle P, Vasel J, Vinton L, Vold A, Vrba T, Wang B, Wetstein M, Whittington D, Wojcicki SG, Wolcott J, Yadav N, Yang S, Zalesak J, Zamorano B, Zwaska R. Measurement of the Neutrino Mixing Angle θ_{23} in NOvA. PHYSICAL REVIEW LETTERS 2017; 118:151802. [PMID: 28452513 DOI: 10.1103/physrevlett.118.151802] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2017] [Indexed: 06/07/2023]
Abstract
This Letter reports new results on muon neutrino disappearance from NOvA, using a 14 kton detector equivalent exposure of 6.05×10^{20} protons on target from the NuMI beam at the Fermi National Accelerator Laboratory. The measurement probes the muon-tau symmetry hypothesis that requires maximal θ_{23} mixing (θ_{23}=π/4). Assuming the normal mass hierarchy, we find Δm_{32}^{2}=(2.67±0.11)×10^{-3} eV^{2} and sin^{2}θ_{23} at the two statistically degenerate values 0.404_{-0.022}^{+0.030} and 0.624_{-0.030}^{+0.022}, both at the 68% confidence level. Our data disfavor the maximal mixing scenario with 2.6σ significance.
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Deng Y, Tian X, Chen BY, Zhou N, Xia M, Bai WW, Dou MM, Liu XY. [Distribution of electroencephalograph power density in patients with severe obstructive sleep apnea during different sleep stages]. ZHONGHUA JIE HE HE HU XI ZA ZHI = ZHONGHUA JIEHE HE HUXI ZAZHI = CHINESE JOURNAL OF TUBERCULOSIS AND RESPIRATORY DISEASES 2017; 40:258-262. [PMID: 28395403 DOI: 10.3760/cma.j.issn.1001-0939.2017.04.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Objective: To investigate the variation of electroencephalograph(EEG) power density during different sleep stages in OSA for understanding of the mechanisms underlying the brain dysfunction in OSA as well as its earlier diagnosis and treatment. Methods: Sixteen-channel EEGs from OSA patients and normal controls in stage wake, sleep stage 1, sleep stage 2, sleep stage 3 and rapid eye movement stage were analyzed by time-frequency analysis method. The EEG power density in different frequency bands (including δ, θ, α, σ, β and γ) was respectively compared between the 2 groups. The correlation between the variation in the EEG power and primary indices of polysomnography was further analyzed. Results: The EEG power density in δ band in stage wake [OSA: (0.82±0.13) μV(2)/Hz, Control: (0.66±0.02) μV(2)/Hz, t=4.309, P<0.05], stage 1 [OSA: (1.28±0.07) μV(2)/Hz, Control: (0.92±0.04) μV(2)/Hz, t=-3.369, P<0.05] and stage 3 [OSA: (2.74±0.22) μV(2)/Hz, Control: (2.04±0.07) μV(2)/Hz, t=-2.669, P<0.05] was significantly higher in OSA, compared with that in the control. Statistical analysis showed that the EEG power density was significantly higher in frontal and central regions in stage wake [frontal: OSA: (0.90±0.02) μV(2)/Hz, Control: (0.66±0.02) μV(2)/Hz, t=8.539, P<0.01; central: OSA: (1.15±0.06) μV(2)/Hz, Control: (0.72±0.02) μV(2)/Hz, t=6.669, P<0.01] and stage 1 [frontal: OSA: (1.23±0.03) μV(2)/Hz, Control: (0.99±0.03) μV(2)/Hz, t=5.983, P<0.01; central: OSA: (1.52±0.05) μV(2)/Hz, Control: (1.14±0.04) μV(2)/Hz, t=5.714, P<0.01], as well as central region in stage 3 [OSA: (3.24±0.17) μV(2)/Hz, Control: (2.71±0.08) μV(2)/Hz, t=2.707, P<0.05]. The correlation analysis showed that the power density in central region in stage 1 and stage 3 was positively correlated with arousal index (r=0.877 in stage 1, 0.656 in stage 3), implying that sleep fragmentation was closely related to the variation of EEG power density during nocturnal sleep in OSA. Conclusions: The feature stages for OSA are stage wake, stage 1 and stage 3. The EEG power density in OSA (δ band) was significantly higher than that in the control. The EEG power density in OSA and the control shows differences in frontal and central regions in stage wake and stage 1, as well as in central region in stage 3. The results indicate that low-frequency EEG power density giving priority to frontal area and central area has improved in severe OSA, which may be related to the neurologic deficits in corresponding brain areas.
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Lu G, Rao M, Zhu P, Tian X, Linendoll N, Pilichowska M, Glass WF, Hunter R, Zhu J. P09.63 Postmortem evaluation of end-organ toxicity in patients with glioblastoma treated with temozolomide, bevacizumab and irinotecan. Neuro Oncol 2017. [DOI: 10.1093/neuonc/nox036.318] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Tian X, Anthony K, Diaz FJ. Transition Metal Chelator Induces Progesterone Production in Mouse Cumulus-Oocyte Complexes and Corpora Lutea. Biol Trace Elem Res 2017; 176:374-383. [PMID: 27604975 DOI: 10.1007/s12011-016-0841-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/25/2016] [Accepted: 08/30/2016] [Indexed: 10/21/2022]
Abstract
Progesterone production is upregulated in granulosa cells (cumulus and mural) after the LH surge, but the intra-follicular mechanisms regulating this transition are not completely known. Recent findings show that the transition metal chelator, N,N,N',N'-tetrakis-(2-pyridylmethyl)-ethylenediamine (TPEN), impairs ovarian function. In this study, we provide evidence that chelating transition metals, including zinc, enhances progesterone production. The findings show that TPEN (transition metal chelator) increases abundance of Cyp11a1 and Star messenger RNA (mRNA) between 8- and 20-fold and progesterone production more than 3-fold in cultured cumulus-oocyte complexes (COC). Feeding a zinc-deficient diet for 10 days, but not 3 days, increased Star, Hsd3b, and prostaglandin F2 alpha receptor (Ptgfr) mRNA ~2.5-fold, suggesting that the effect of TPEN is through modulation of zinc availability. Progesterone from cumulus cells promotes oocyte developmental potential. Blocking progesterone production with epostane during maturation reduced subsequent blastocyst formation from 89 % in control to 18 % in epostane-treated complexes, but supplementation with progesterone restored blastocyst developmental potential to 94 %. Feeding a zinc-deficient diet for 5 days before ovulation did not affect the number of CL, STAR protein, or serum progesterone. However, incubating luteal tissue with TPEN increased abundance of Star, Hsd3b, and Ptgfr mRNA 2-3-fold and increased progesterone production 3-fold. TPEN is known to abolish SMAD2/3 signaling in cumulus cells. However, treatment of COC with the SMAD2/3 phosphorylation inhibitor, SB421542, did not by itself induce steroidogenic transcripts but did potentiate EGF-induced Star mRNA expression. Collectively, the results show that depletion of transition metals with TPEN acutely enhances progesterone biosynthesis in COC and luteal tissue.
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Meng X, Tian X, Kong Y, Sun A, Yu W, Qian W, Song X, Cui H, Xue L, Liu C, Wang S. Rapid in-focus corrections on quantitative amplitude and phase imaging using transport of intensity equation method. J Microsc 2017; 266:253-262. [PMID: 28248423 DOI: 10.1111/jmi.12535] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2016] [Revised: 01/24/2017] [Accepted: 01/25/2017] [Indexed: 01/04/2023]
Abstract
Transport of intensity equation (TIE) method can acquire sample phase distributions with high speed and accuracy, offering another perspective for cellular observations and measurements. However, caused by incorrect focal plane determination, blurs and halos are induced, decreasing resolution and accuracy in both retrieved amplitude and phase information. In order to obtain high-accurate sample details, we propose TIE based in-focus correction technique for quantitative amplitude and phase imaging, which can locate focal plane and then retrieve both in-focus intensity and phase distributions combining with numerical wavefront extraction and propagation as well as physical image recorder translation. Certified by both numerical simulations and practical measurements, it is believed the proposed method not only captures high-accurate in-focus sample information, but also provides a potential way for fast autofocusing in microscopic system.
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Dai H, Zhang VW, El-Hattab AW, Ficicioglu C, Shinawi M, Lines M, Schulze A, McNutt M, Gotway G, Tian X, Chen S, Wang J, Craigen WJ, Wong LJ. FBXL4 defects are common in patients with congenital lactic acidemia and encephalomyopathic mitochondrial DNA depletion syndrome. Clin Genet 2017; 91:634-639. [PMID: 27743463 DOI: 10.1111/cge.12894] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2016] [Revised: 10/11/2016] [Accepted: 10/11/2016] [Indexed: 11/30/2022]
Abstract
Mutations in FBXL4 have recently been recognized to cause a mitochondrial disorder, with clinical features including early onset lactic acidosis, hypotonia, and developmental delay. FBXL4 sequence analysis was performed in 808 subjects suspected to have a mitochondrial disorder. In addition, 28 samples from patients with early onset of lactic acidosis, but without identifiable mutations in 192 genes known to cause mitochondrial diseases, were examined for FBXL4 mutations. Definitive diagnosis was made in 10 new subjects with a total of 7 novel deleterious variants; 5 null and 2 missense substitutions. All patients exhibited congenital lactic acidemia, most of them with severe encephalopathic presentation, and global developmental delay. Overall, FBXL4 defects account for at least 0.7% (6 out of 808) of subjects suspected to have a mitochondrial disorder, and as high as 14.3% (4 out of 28) in young children with congenital lactic acidosis and clinical features of mitochondrial disease. Including FBLX4 in the mitochondrial diseases panel should be particularly important for patients with congenital lactic acidosis.
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Duan J, Jue NK, Jiang Z, O'Neill R, Wolf E, Blomberg LA, Dong H, Zheng X, Chen J, Tian X. 125 INCOMPLETE COMPENSATORY UP-REGULATION OF X-LINKED GENES IN BOVINE GERMLINE, EARLY EMBRYOS, AND SOMATIC TISSUES. Reprod Fertil Dev 2017. [DOI: 10.1071/rdv29n1ab125] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
The maintenance of a proper gene dosage is essential in cellular networks. To resolve the dosage imbalance between eutherian females (XX) and male (XY), X chromosome inactivation (XCI) occurs in females, while X-chromosome dosage compensation up-regulates the active X to balance its expression with that of autosome pairs [Ohno’s hypothesis; Ohno 1967 Sex Chromosomes and Sex-linked Genes (Springer-Verlag), p. 99]. These phenomena have been well studied in humans and mice, despite many controversies over the existence of such up-regulation. Using RNA sequencing data, we determined X chromosome dosage compensation in the bovine by analysing the global expression profiles of germ cells, embryos, and somatic tissues. Eight bovine RNA-seq data sets were obtained in from the Gene Expression Omnibus, covering bovine immature/mature oocytes (GSE59186 and GSE52415), pre-implantation conceptuses (GSE59186, GSE52415, and GSE56513), extra-embryonic tissues (PRJNA229443), and male/female somatic tissues (GSE74076, GSE63509, PRJEB6377, and GSE65125). The RNAseq data were trimmed and non-uniquely (paralogs included) mapped to the bovine reference genome assembly UMD3.1.1 using Hisat2 (version 2.0.5) aligner. The mRNA level of each gene, estimated by transformed transcripts per kilobase million was quantified by IsoEM (version 1.1.5). These RNA-seq data sets represented 4 chromosome scenarios in cells: XXXX:AAAA (diploid immature oocyte with DNA duplication), XX:AA (haploid mature oocyte with DNA duplication), XX:AA and X:AA (gradual changed X status in bovine pre-implantation conceptuses), and X:AA (extra-embryonic tissues and somatic cells in female with one active X or XY male) were analysed for dosage compensation. A total of 959 X-linked genes and 20,316 autosome genes were used to calculate the relative X to autosomal gene (A) expression (RXE): log2 (X expression) − log2 (A expression). The following dosage determinations were made: RXE values ≥ 0: complete dosage compensation (or X: A ratio ≥ 1); RXE values < 0: in-complete dosage compensation; RXE value = −1: no dosage compensation (or X: A ratio = 0.5). Our analyses showed a decreased RXE after fertilization, from −0.33 in matured oocytes to −0.50 at the 2-cell stage, indicating that the sperm that undergo meiotic sex chromosome inactivation (MSCI) bring in inactive X chromosomes to the matured oocytes. Subsequently, the activation of the bovine embryonic genome at the 4- to 8-cell stage increased RXE from −0.54 to −0.05. This was followed by a sharp RXE decline from −0.02 at the 16-cell stage, 0.1 at the 32-cell stage to −0.29 at the compact morula stage, which is known as paternal X inactivation stage in the bovine. Finally, RXE was stabilised from blastocysts −0.19 through the Day 19 conceptuses −0.25 to somatic tissue average −0.21 with a pattern of incomplete X compensation. These findings support X expression up-regulation as proposed by Ohno. No significant RXE differences were observed between bovine female and male somatic tissues, further supporting Ohno’s hypothesis, which predicts a balance in the expression of X-linked genes to that of autosomes. This study confirms Ohno’s hypothesis of X dosage compensation in bovine germ cells, early embryos, and somatic tissues.
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Jiang Z, Sun J, Marjani S, Dong H, Zheng X, Bi J, Chen J, Tian X. 130 A CATALOG OF REFERENCE GENES WITH HIGH, MEDIUM, AND LOW LEVELS OF EXPRESSION DURING BOVINE IN VIVO PRE-IMPLANTATION DEVELOPMENT. Reprod Fertil Dev 2017. [DOI: 10.1071/rdv29n1ab130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Appropriate reference genes for accurate normalization in RT-PCR are essential for the study of gene expression. Ideal reference genes should not only have stable expression across stages of embryo development, but also be expressed at comparable levels to the target genes. Using RNA-seq data from in vivo-produced bovine oocytes and embryos from the 2-cell to blastocyst stage (Jiang et al., 2014 BMC Genomics 15, 756), we tried to establish a catalogue of all reference genes for RT-PCR analysis. One-way ANOVA generated 4055 genes that did not differ across stages. To reduce this list, we used the entire RNA-seq data set and first removed genes with a FPKM (fragments per kilobase of transcript per million mapped reads) of <1, and then rescaled each gene’s expression values within a range of 0 to 1. We subsequently calculated the expression variance for each gene across all stages. By assuming that the calculated variances follow a Gaussian distribution and that the majority of the genes do not have a stable expression level, a gene was classified as a reference if its variance significantly deviated (P < 0.05) from these assumptions. We identified 346 potential reference genes, all of which were among the candidates from the ANOVA analysis. We arbitrarily assigned genes in this list to high (FPKM ≥ 100), medium (10 < FPKM < 100), and low expression levels (FPKM ≤ 10), and 37, 154, and 155 genes, respectively, fell into these groups. Surprisingly, none of the commonly used reference genes, such as GAPDH, PPIA, ACTB, PRL15, GUSB, and H3F2A, were identified as being stably expressed across in vivo development. This is consistent with findings of prior RT-PCR studies (Robert et al. 2002 Biol. Reprod. 67, 1465–1472; Ross et al. 2010 Cell Reprogram. 12, 709–717). The following gene ontology terms were significantly enriched for the 346 genes: cell cycle, translation, transport, chromatin, cell division, and metabolic process, indicating that the early embryos maintained constant levels of genes involved in fundamental biological functions. Finally, we performed RT-PCR to validate the RNA-seq results using different bovine in vivo-derived oocytes and embryos (n = 3/stage). We successfully validated 10 selected genes, including those in the high (CS, PGD, and ACTR3), medium (CCT5, MRPL47, COG2, CRT9, and HELLS), and low expression groups (CDC23 and TTF1). In conclusion, we recommend the use of reference genes that are expressed at comparable levels to target genes. This study offers a useful resource to aid in the appropriate selection of reference genes, which will improve the accuracy of quantitative gene expression analyses across bovine embryo pre-implantation development.
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Zhu L, Jiang Z, Duan J, Dong H, Zheng X, Blomberg LA, Donovan DM, Talbot N, Chen J, Tian X. 127 ABUNDANCE OF mRNA FOR HISTONE VARIANTS, HISTONE, AND DNA MODIFICATION ENZYMES IN BOVINE IN VIVO OOCYTES AND PRE-IMPLANTATION EMBRYOS. Reprod Fertil Dev 2017. [DOI: 10.1071/rdv29n1ab127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
During early embryogenesis, chromatin composition and structure undergo dramatic changes due to replacement of canonical histones by histone variants, post-translational modifications of histones, and changes in DNA methylation. These dynamics of chromatin play important roles in the regulation of gene expression and development of embryonic cells. Our goal here is to describe the above-mentioned changes using recently established transcriptome profiles of bovine in vivo-produced oocytes and pre-implantation embryos (Jiang et al. 2014 BMC Genomics, 15, 1). Ten multiparous Holstein cows were synchronized and superovulated. Artificial insemination was conducted at 12 and 24 h post-standing heat using semen from bulls of proven fertility. In vivo-matured oocytes and 2- to 16-cell stage embryos were collected at 30 h, and 2 to 4 days after oestrus by oviducal flushing. Early morulae, compact morulae, and blastocysts were collected by non-surgical uterine flushing on days 5, 6, and 7 after oestrus. Single-cell deep sequencing libraries were prepared from oocytes/embryos (2 samples/stage) using a SOLiDTM Total RNA-seq Kit (Thermo Fisher Scientific, Waltham, MA, USA) following the manufacturer’s instructions and sequenced on a 5500xl Genetic Analyzer. The reproducibility of the preparation and sequencing methods were indicated by high Pearson correlation efficiencies between the replicates. Sequencing reads were normalized to transcripts per million as final results after trimming and mapping of the reads. We found that 8, 8, 7, 13, 10, 2, and 2 out of the 14, 52, 22, 31, 23, 4, and 3 annotated histone variants, histone methyl-tranferases, histone demethylases, histone acetyl-tranferases, histone deacetylases, DNA methyl-transferases, and DNA demethylases, respectively, were highly abundant (mean transformed transcripts per kilobase million > 50) in at least one of the pre-implantation development stages studied. Among histone variants with high mRNA abundance, H1FOO, H3F3A, and H3F3B were highly stored in oocytes, whereas other variants such as H2AFJ, H2AFV, H2AFX, H2AFY, H2AFZ, and CENPA were largely transcribed after the embryonic genome activation. H3F3A and H3F3B, however, were maintained at relatively high levels throughout pre-implantation development. Additionally, the mRNA for histone acetyl-transferases, TADA2A and TADA1; histone deacetylase, HDAC1 and HDAC3; histone methyl-transferases, EED and PRMT5; histone demethylase, KDM1A, were more abundant than others. It was also found that oocytes stored a large amount of DNA methyl-transferase, DNMT1, which degraded gradually after fertilization. Overall, in vivo-produced oocytes and early embryos contained more mRNA for histone-modifying enzymes than those for DNA modification. Taken together, our results suggest that although there are widely recognised and dramatic changes in embryonic DNA methylation through both active and passive mechanisms, the pre-implantation embryos may be more engaged in modifying histones than DNA.
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Tian X, Ye M, Cao Y, Wang C. Losartan Improves Palmitate-Induced Insulin Resistance in 3T3-L1 Adipocytes Through Upregulation of Src Phosphorylation. Exp Clin Endocrinol Diabetes 2016; 125:136-140. [PMID: 28008588 DOI: 10.1055/s-0042-120709] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Angiotensin II type 1 receptor blocker losartan has shown strongly anti-insulin resistance properties in vivo and in vitro; however, the underlying mechanisms are poorly understood. In this study, we demonstrate that losartan administration increased phosphorylation of Akt and its downstream Akt substrate of 160 kDa (AS160), enhanced plasma membrane translocation of glucose transporter type 4 (GLUT4), and increased glucose uptake, along with increased Src phosphorylation as well as reduced expression of docking protein 1(DOK1) in palmitate-treated 3T3-L1 adipocytes. The beneficial impacts of losartan on insulin signaling were diminished in Src-deficient 3T3-L1 adipocytes. In addition, suppressed expression of DOK1 by losartan was abolished by Src knockdown. Our results suggest that anti-insulin resistance ability of losartan is mediated by Src/DOK1/Akt pathway.
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Ding C, Xue W, Tian P, Ding X, Pan X, Yan H, Xiang H, Feng X, Hou J, Tian X, Li Y, Zheng J. Outcomes of standard dose EC-MPS with low exposure to CsA in DCD renal transplantation recipients with DGF. Int J Clin Pract 2016:8-15. [PMID: 26176940 DOI: 10.1111/ijcp.12661] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
AIMS The lower limit of exposure to cyclosporine A (CsA) has not yet been established in donation after cardiac death (DCD) renal transplantation recipients with delayed graft function (DGF) receiving enteric-coated mycophenolate sodium (EC-MPS) therapy. Stable and adequate mycophenolic acid (MPA) dosing may facilitate lower CsA exposure after DCD renal transplantation in recipients with DGF without compromising safety. METHODS A 12-month, single-centre open-label prospective trial was performed in our centre. According to their DGF risk index using the previous DGF prediction models, we divided up the patients on oral CsA into either a DGF group (n = 26) and no DGF group (n = 48). All of the patients initially received the standard EC-MPS dosing (1440 mg/day). The initial dose of CsA in the low risk of DGF group was 4.5 mg/kg/day and in the high risk of DGF group was 2.5 mg/kg/day. Efficacy parameters, safety and tolerability were assessed over a 12-month study period. RESULTS The incidence of DGF was 18.5% in the 162 DCD recipients. Between the DGF group and the no DGF group, the 1-year patient survival and graft survival were not significantly different. The incidence of BPAR was higher in the DGF group (26.9% vs. 8.3%, p = 0.032). Most patients in the DGF group had recovery of renal function after 1 month. The adverse events between the two groups were not significantly different. The daily EC-MPS doses of the DGF group were significantly higher than the no DGF group before the 6-month follow-up period. There were no significant differences between the two groups regarding the mean AUC levels during the follow-up period. CONCLUSIONS These results show that low expose CsA with standard dosing of EC-MPS and thymoglobulin was efficacious, safe and well-tolerated in DCD renal transplant recipients with DGF in China. Furthermore, stable and adequate MPA exposure helped to reduce the dose of and exposure to CsA. Thus, this may lead to less-induced nephrotoxicity and better renal function recovery.
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She XR, Tian X, Fan XK, Hong GL, Zhao GJ, Li MF, Lu ZQ. [The effects of P - glycoprotein expression induced by ulinastatin on HK - 2 cells damage induced by paraquat]. ZHONGHUA LAO DONG WEI SHENG ZHI YE BING ZA ZHI = ZHONGHUA LAODONG WEISHENG ZHIYEBING ZAZHI = CHINESE JOURNAL OF INDUSTRIAL HYGIENE AND OCCUPATIONAL DISEASES 2016; 34:805-809. [PMID: 28043264 DOI: 10.3760/cma.j.issn.1001-9391.2016.11.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the protective effect of P-glycoprotein up-regulated by ulinastatin (UTI) on HK-2 cells during paraquat (PQ) -induced injury and its underlying mechanisms. Methods: The re- search was divided into two parts. The first part of the research was divided into normal control group, PQ group, UTI+PQ group, UTI control group. The second part of the research was divided into negative virus group (including control group, PQ group, PQU+TI group, UTI group) and P-gp siRNA group (including control group, PQ group, PQU+TI group, UTI group) . Negative virus group: the cells were transfected into the blank virus; siRNA P-gp group: the cells were transfected with P-gp siRNA virus. HK-2 cells were routinely cultured. After 800 μmol/L PQ treatment, the changes of P-gp protein levels in the HK-2 cells were determined by West-ern-blot (WB) . Then, transfected lentivirus bringing P-gp silent gene, the cell viability was determined by CCK-8 assay, the expression of P-gp in the cells after transfection was detected by WB and the concentration of PQ in HK-2 cells were measured by high performance liquid chromatography (HPLC) . Results: Compared with the normal control group, the P-gp expression of PQ group had no significantly changes (P>0.05) . Compared with the PQ group, the P-gp expression of UTI+PQ group significantly increased (P>0.05) . Compared with the corre-sponding control siRNA group, the P-gp siRNA group had no significantly changes in cell viability (P>0.05) . and significantly decreased in P-gp expression. Compared with the corresponding control siRNA group, the P-gp siRNA group had no significantly changes in PQ concentration in HK-2 cell (P>0.05) , but compared with P-gp siRNA PQ group, the PQ concentration of P-gp siRNA PQ+UTI group significantly decrease (P<0.05) . Conclusion: UTI significantly reduced the accumulation of PQ in HK-2 cells and increased the viability of HK-2 cells in vitro may be not by increased P-gp activity. UTI could significantly reduce HK-2 cell injury induced by PQ in vitro and improve the survival rate of HK-2 cells. It may not be related to the up regulation of P-gp expres-sion.
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Adamson P, An FP, Anghel I, Aurisano A, Balantekin AB, Band HR, Barr G, Bishai M, Blake A, Blyth S, Bock GJ, Bogert D, Cao D, Cao GF, Cao J, Cao SV, Carroll TJ, Castromonte CM, Cen WR, Chan YL, Chang JF, Chang LC, Chang Y, Chen HS, Chen QY, Chen R, Chen SM, Chen Y, Chen YX, Cheng J, Cheng JH, Cheng YP, Cheng ZK, Cherwinka JJ, Childress S, Chu MC, Chukanov A, Coelho JAB, Corwin L, Cronin-Hennessy D, Cummings JP, de Arcos J, De Rijck S, Deng ZY, Devan AV, Devenish NE, Ding XF, Ding YY, Diwan MV, Dolgareva M, Dove J, Dwyer DA, Edwards WR, Escobar CO, Evans JJ, Falk E, Feldman GJ, Flanagan W, Frohne MV, Gabrielyan M, Gallagher HR, Germani S, Gill R, Gomes RA, Gonchar M, Gong GH, Gong H, Goodman MC, Gouffon P, Graf N, Gran R, Grassi M, Grzelak K, Gu WQ, Guan MY, Guo L, Guo RP, Guo XH, Guo Z, Habig A, Hackenburg RW, Hahn SR, Han R, Hans S, Hartnell J, Hatcher R, He M, Heeger KM, Heng YK, Higuera A, Holin A, Hor YK, Hsiung YB, Hu BZ, Hu T, Hu W, Huang EC, Huang HX, Huang J, Huang XT, Huber P, Huo W, Hussain G, Hylen J, Irwin GM, Isvan Z, Jaffe DE, Jaffke P, James C, Jen KL, Jensen D, Jetter S, Ji XL, Ji XP, Jiao JB, Johnson RA, de Jong JK, Joshi J, Kafka T, Kang L, Kasahara SMS, Kettell SH, Kohn S, Koizumi G, Kordosky M, Kramer M, Kreymer A, Kwan KK, Kwok MW, Kwok T, Lang K, Langford TJ, Lau K, Lebanowski L, Lee J, Lee JHC, Lei RT, Leitner R, Leung JKC, Li C, Li DJ, Li F, Li GS, Li QJ, Li S, Li SC, Li WD, Li XN, Li YF, Li ZB, Liang H, Lin CJ, Lin GL, Lin S, Lin SK, Lin YC, Ling JJ, Link JM, Litchfield PJ, Littenberg L, Littlejohn BR, Liu DW, Liu JC, Liu JL, Loh CW, Lu C, Lu HQ, Lu JS, Lucas P, Luk KB, Lv Z, Ma QM, Ma XB, Ma XY, Ma YQ, Malyshkin Y, Mann WA, Marshak ML, Martinez Caicedo DA, Mayer N, McDonald KT, McGivern C, McKeown RD, Medeiros MM, Mehdiyev R, Meier JR, Messier MD, Miller WH, Mishra SR, Mitchell I, Mooney M, Moore CD, Mualem L, Musser J, Nakajima Y, Naples D, Napolitano J, Naumov D, Naumova E, Nelson JK, Newman HB, Ngai HY, Nichol RJ, Ning Z, Nowak JA, O'Connor J, Ochoa-Ricoux JP, Olshevskiy A, Orchanian M, Pahlka RB, Paley J, Pan HR, Park J, Patterson RB, Patton S, Pawloski G, Pec V, Peng JC, Perch A, Pfützner MM, Phan DD, Phan-Budd S, Pinsky L, Plunkett RK, Poonthottathil N, Pun CSJ, Qi FZ, Qi M, Qian X, Qiu X, Radovic A, Raper N, Rebel B, Ren J, Rosenfeld C, Rosero R, Roskovec B, Ruan XC, Rubin HA, Sail P, Sanchez MC, Schneps J, Schreckenberger A, Schreiner P, Sharma R, Moed Sher S, Sousa A, Steiner H, Sun GX, Sun JL, Tagg N, Talaga RL, Tang W, Taychenachev D, Thomas J, Thomson MA, Tian X, Timmons A, Todd J, Tognini SC, Toner R, Torretta D, Treskov K, Tsang KV, Tull CE, Tzanakos G, Urheim J, Vahle P, Viaux N, Viren B, Vorobel V, Wang CH, Wang M, Wang NY, Wang RG, Wang W, Wang X, Wang YF, Wang Z, Wang ZM, Webb RC, Weber A, Wei HY, Wen LJ, Whisnant K, White C, Whitehead L, Whitehead LH, Wise T, Wojcicki SG, Wong HLH, Wong SCF, Worcester E, Wu CH, Wu Q, Wu WJ, Xia DM, Xia JK, Xing ZZ, Xu JL, Xu JY, Xu Y, Xue T, Yang CG, Yang H, Yang L, Yang MS, Yang MT, Ye M, Ye Z, Yeh M, Young BL, Yu ZY, Zeng S, Zhan L, Zhang C, Zhang HH, Zhang JW, Zhang QM, Zhang XT, Zhang YM, Zhang YX, Zhang ZJ, Zhang ZP, Zhang ZY, Zhao J, Zhao QW, Zhao YB, Zhong WL, Zhou L, Zhou N, Zhuang HL, Zou JH. Limits on Active to Sterile Neutrino Oscillations from Disappearance Searches in the MINOS, Daya Bay, and Bugey-3 Experiments. PHYSICAL REVIEW LETTERS 2016; 117:151801. [PMID: 27768356 DOI: 10.1103/physrevlett.117.151801] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2016] [Indexed: 06/06/2023]
Abstract
Searches for a light sterile neutrino have been performed independently by the MINOS and the Daya Bay experiments using the muon (anti)neutrino and electron antineutrino disappearance channels, respectively. In this Letter, results from both experiments are combined with those from the Bugey-3 reactor neutrino experiment to constrain oscillations into light sterile neutrinos. The three experiments are sensitive to complementary regions of parameter space, enabling the combined analysis to probe regions allowed by the Liquid Scintillator Neutrino Detector (LSND) and MiniBooNE experiments in a minimally extended four-neutrino flavor framework. Stringent limits on sin^{2}2θ_{μe} are set over 6 orders of magnitude in the sterile mass-squared splitting Δm_{41}^{2}. The sterile-neutrino mixing phase space allowed by the LSND and MiniBooNE experiments is excluded for Δm_{41}^{2}<0.8 eV^{2} at 95% CL_{s}.
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Adamson P, Anghel I, Aurisano A, Barr G, Bishai M, Blake A, Bock GJ, Bogert D, Cao SV, Carroll TJ, Castromonte CM, Chen R, Childress S, Coelho JAB, Corwin L, Cronin-Hennessy D, de Jong JK, De Rijck S, Devan AV, Devenish NE, Diwan MV, Escobar CO, Evans JJ, Falk E, Feldman GJ, Flanagan W, Frohne MV, Gabrielyan M, Gallagher HR, Germani S, Gomes RA, Goodman MC, Gouffon P, Graf N, Gran R, Grzelak K, Habig A, Hahn SR, Hartnell J, Hatcher R, Holin A, Huang J, Hylen J, Irwin GM, Isvan Z, James C, Jensen D, Kafka T, Kasahara SMS, Koizumi G, Kordosky M, Kreymer A, Lang K, Ling J, Litchfield PJ, Lucas P, Mann WA, Marshak ML, Mayer N, McGivern C, Medeiros MM, Mehdiyev R, Meier JR, Messier MD, Miller WH, Mishra SR, Moed Sher S, Moore CD, Mualem L, Musser J, Naples D, Nelson JK, Newman HB, Nichol RJ, Nowak JA, O'Connor J, Orchanian M, Pahlka RB, Paley J, Patterson RB, Pawloski G, Perch A, Pfützner MM, Phan DD, Phan-Budd S, Plunkett RK, Poonthottathil N, Qiu X, Radovic A, Rebel B, Rosenfeld C, Rubin HA, Sail P, Sanchez MC, Schneps J, Schreckenberger A, Schreiner P, Sharma R, Sousa A, Tagg N, Talaga RL, Thomas J, Thomson MA, Tian X, Timmons A, Todd J, Tognini SC, Toner R, Torretta D, Tzanakos G, Urheim J, Vahle P, Viren B, Weber A, Webb RC, White C, Whitehead L, Whitehead LH, Wojcicki SG, Zwaska R. Search for Sterile Neutrinos Mixing with Muon Neutrinos in MINOS. PHYSICAL REVIEW LETTERS 2016; 117:151803. [PMID: 27768323 DOI: 10.1103/physrevlett.117.151803] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2016] [Indexed: 06/06/2023]
Abstract
We report results of a search for oscillations involving a light sterile neutrino over distances of 1.04 and 735 km in a ν_{μ}-dominated beam with a peak energy of 3 GeV. The data, from an exposure of 10.56×10^{20} protons on target, are analyzed using a phenomenological model with one sterile neutrino. We constrain the mixing parameters θ_{24} and Δm_{41}^{2} and set limits on parameters of the four-dimensional Pontecorvo-Maki-Nakagawa-Sakata matrix, |U_{μ4}|^{2} and |U_{τ4}|^{2}, under the assumption that mixing between ν_{e} and ν_{s} is negligible (|U_{e4}|^{2}=0). No evidence for ν_{μ}→ν_{s} transitions is found and we set a world-leading limit on θ_{24} for values of Δm_{41}^{2}≲1 eV^{2}.
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Tian X, Caster J, Warner S, Wagner K, Ohana P, Gabizon A, Wang A. Preclinical Evaluation of Promitil, a Radiation-Responsive Liposomal Formulation of a Mitomycin C Prodrug, for Use in Chemoradiation Therapy. Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2016.06.058] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Meng L, Mao P, Guo Q, Tian X. Evaluation of Meat and Egg Traits of Beijing-you Chickens Rotationally Grazing on Chicory Pasture in a Chestnut Forest. BRAZILIAN JOURNAL OF POULTRY SCIENCE 2016. [DOI: 10.1590/1806-9061-2015-0081] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Fullstone G, Nyberg S, Tian X, Battaglia G. From the Blood to the Central Nervous System: A Nanoparticle's Journey Through the Blood-Brain Barrier by Transcytosis. INTERNATIONAL REVIEW OF NEUROBIOLOGY 2016; 130:41-72. [PMID: 27678174 DOI: 10.1016/bs.irn.2016.06.001] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Designing nanoparticles that effectively enter the central nervous system (CNS) rapidly and without alteration is one of the major challenges in the use of nanotechnology for the brain. In this chapter, we explore the process of transcytosis, a receptor-mediated transport pathway that permits endogenous macromolecules to enter the CNS by crossing the blood-brain barrier. Transcytosis across the blood-brain barrier involves a number of distinct stages, including receptor binding, endocytosis into a transport vesicle, trafficking of the vesicle to the opposite side of the cell, and finally exocytosis and release of cargo. For each stage, we discuss the current knowledge on biological, physiological, and physical factors that influence nanoparticle transit through that stage of transcytosis, with implications for nanoparticle design. Finally, we look at the current progress in designing nanoparticles that exploit transcytosis for CNS delivery.
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Sanders J, Tian X, Segars P, Boone J, Samei E. TU-H-207A-09: An Automated Technique for Estimating Patient-Specific Regional Imparted Energy and Dose From TCM CT Exams Across 13 Protocols. Med Phys 2016. [DOI: 10.1118/1.4957645] [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
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Tian X, Wang J, Hong X, Wang C. Fast Determination of Lycopene Content and Soluble Solid Content of Cherry Tomatoes Using Metal Oxide Sensors Based Electronic Nose. ACTA ALIMENTARIA 2016. [DOI: 10.1556/aalim.2015.0006] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Yin Y, Tian X, Jiang X, Wang H, Gao W. Modification of cellulose nanocrystal via SI-ATRP of styrene and the mechanism of its reinforcement of polymethylmethacrylate. Carbohydr Polym 2016; 142:206-12. [DOI: 10.1016/j.carbpol.2016.01.014] [Citation(s) in RCA: 93] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2015] [Revised: 12/21/2015] [Accepted: 01/10/2016] [Indexed: 11/27/2022]
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Adamson P, Ader C, Andrews M, Anfimov N, Anghel I, Arms K, Arrieta-Diaz E, Aurisano A, Ayres DS, Backhouse C, Baird M, Bambah BA, Bays K, Bernstein R, Betancourt M, Bhatnagar V, Bhuyan B, Bian J, Biery K, Blackburn T, Bocean V, Bogert D, Bolshakova A, Bowden M, Bower C, Broemmelsiek D, Bromberg C, Brunetti G, Bu X, Butkevich A, Capista D, Catano-Mur E, Chase TR, Childress S, Choudhary BC, Chowdhury B, Coan TE, Coelho JAB, Colo M, Cooper J, Corwin L, Cronin-Hennessy D, Cunningham A, Davies GS, Davies JP, Del Tutto M, Derwent PF, Deepthi KN, Demuth D, Desai S, Deuerling G, Devan A, Dey J, Dharmapalan R, Ding P, Dixon S, Djurcic Z, Dukes EC, Duyang H, Ehrlich R, Feldman GJ, Felt N, Fenyves EJ, Flumerfelt E, Foulkes S, Frank MJ, Freeman W, Gabrielyan M, Gallagher HR, Gebhard M, Ghosh T, Gilbert W, Giri A, Goadhouse S, Gomes RA, Goodenough L, Goodman MC, Grichine V, Grossman N, Group R, Grudzinski J, Guarino V, Guo B, Habig A, Handler T, Hartnell J, Hatcher R, Hatzikoutelis A, Heller K, Howcroft C, Huang J, Huang X, Hylen J, Ishitsuka M, Jediny F, Jensen C, Jensen D, Johnson C, Jostlein H, Kafka GK, Kamyshkov Y, Kasahara SMS, Kasetti S, Kephart K, Koizumi G, Kotelnikov S, Kourbanis I, Krahn Z, Kravtsov V, Kreymer A, Kulenberg C, Kumar A, Kutnink T, Kwarciancy R, Kwong J, Lang K, Lee A, Lee WM, Lee K, Lein S, Liu J, Lokajicek M, Lozier J, Lu Q, Lucas P, Luchuk S, Lukens P, Lukhanin G, Magill S, Maan K, Mann WA, Marshak ML, Martens M, Martincik J, Mason P, Matera K, Mathis M, Matveev V, Mayer N, McCluskey E, Mehdiyev R, Merritt H, Messier MD, Meyer H, Miao T, Michael D, Mikheyev SP, Miller WH, Mishra SR, Mohanta R, Moren A, Mualem L, Muether M, Mufson S, Musser J, Newman HB, Nelson JK, Niner E, Norman A, Nowak J, Oksuzian Y, Olshevskiy A, Oliver J, Olson T, Paley J, Pandey P, Para A, Patterson RB, Pawloski G, Pearson N, Perevalov D, Pershey D, Peterson E, Petti R, Phan-Budd S, Piccoli L, Pla-Dalmau A, Plunkett RK, Poling R, Potukuchi B, Psihas F, Pushka D, Qiu X, Raddatz N, Radovic A, Rameika RA, Ray R, Rebel B, Rechenmacher R, Reed B, Reilly R, Rocco D, Rodkin D, Ruddick K, Rusack R, Ryabov V, Sachdev K, Sahijpal S, Sahoo H, Samoylov O, Sanchez MC, Saoulidou N, Schlabach P, Schneps J, Schroeter R, Sepulveda-Quiroz J, Shanahan P, Sherwood B, Sheshukov A, Singh J, Singh V, Smith A, Smith D, Smolik J, Solomey N, Sotnikov A, Sousa A, Soustruznik K, Stenkin Y, Strait M, Suter L, Talaga RL, Tamsett MC, Tariq S, Tas P, Tesarek RJ, Thayyullathil RB, Thomsen K, Tian X, Tognini SC, Toner R, Trevor J, Tzanakos G, Urheim J, Vahle P, Valerio L, Vinton L, Vrba T, Waldron AV, Wang B, Wang Z, Weber A, Wehmann A, Whittington D, Wilcer N, Wildberger R, Wildman D, Williams K, Wojcicki SG, Wood K, Xiao M, Xin T, Yadav N, Yang S, Zadorozhnyy S, Zalesak J, Zamorano B, Zhao A, Zirnstein J, Zwaska R. First Measurement of Electron Neutrino Appearance in NOvA. PHYSICAL REVIEW LETTERS 2016; 116:151806. [PMID: 27127961 DOI: 10.1103/physrevlett.116.151806] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2016] [Indexed: 06/05/2023]
Abstract
We report results from the first search for ν_{μ}→ν_{e} transitions by the NOvA experiment. In an exposure equivalent to 2.74×10^{20} protons on target in the upgraded NuMI beam at Fermilab, we observe 6 events in the Far Detector, compared to a background expectation of 0.99±0.11(syst) events based on the Near Detector measurement. A secondary analysis observes 11 events with a background of 1.07±0.14(syst). The 3.3σ excess of events observed in the primary analysis disfavors 0.1π<δ_{CP}<0.5π in the inverted mass hierarchy at the 90% C.L.
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Adamson P, Anghel I, Aurisano A, Barr G, Bishai M, Blake A, Bock G, Bogert D, Cao S, Carroll T, Castromonte C, Chen R, Childress S, Coelho J, Corwin L, Cronin-Hennessy D, de Jong J, De Rijck S, Devan A, Devenish N, Diwan M, Escobar C, Evans J, Falk E, Feldman G, Flanagan W, Frohne M, Gabrielyan M, Gallagher H, Germani S, Gomes R, Goodman M, Gouffon P, Graf N, Gran R, Grzelak K, Habig A, Hahn S, Hartnell J, Hatcher R, Holin A, Huang J, Hylen J, Irwin G, Isvan Z, James C, Jensen D, Kafka T, Kasahara S, Koizumi G, Kordosky M, Kreymer A, Lang K, Ling J, Litchfield P, Lucas P, Mann W, Marshak M, Mayer N, McGivern C, Medeiros M, Mehdiyev R, Meier J, Messier M, Miller W, Mishra S, Moed Sher S, Moore C, Mualem L, Musser J, Naples D, Nelson J, Newman H, Nichol R, Nowak J, O’Connor J, Orchanian M, Pahlka R, Paley J, Patterson R, Pawloski G, Perch A, Pfützner M, Phan D, Phan-Budd S, Plunkett R, Poonthottathil N, Qiu X, Radovic A, Rebel B, Rosenfeld C, Rubin H, Sail P, Sanchez M, Schneps J, Schreckenberger A, Schreiner P, Sharma R, Sousa A, Tagg N, Talaga R, Thomas J, Thomson M, Tian X, Timmons A, Todd J, Tognini S, Toner R, Torretta D, Tzanakos G, Urheim J, Vahle P, Viren B, Weber A, Webb R, White C, Whitehead L, Whitehead L, Wojcicki S, Zwaska R. Measurement of the multiple-muon charge ratio in the MINOS Far Detector. Int J Clin Exp Med 2016. [DOI: 10.1103/physrevd.93.052017] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Xu Y, Xu Y, Luan H, Jiang Y, Tian X, Zhang S. Cardioprotection against experimental myocardial ischemic injury using cornin. Braz J Med Biol Res 2016; 49:e5039. [PMID: 26871971 PMCID: PMC4742973 DOI: 10.1590/1414-431x20155039] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2015] [Accepted: 10/13/2015] [Indexed: 02/03/2023] Open
Abstract
Phosphorylated-cyclic adenosine monophosphate response element-binding protein (Phospho-CREB) has an important role in the pathogenesis of myocardial ischemia. We isolated the iridoid glycoside cornin from the fruit of Verbena officinalis L, investigated its effects against myocardial ischemia and reperfusion (I/R) injury in vivo, and elucidated its potential mechanism in vitro. Effects of cornin on cell viability, as well as expression of phospho-CREB and phospho-Akt in hypoxic H9c2 cells in vitro, and myocardial I/R injury in vivo, were investigated. Cornin attenuated hypoxia-induced cytotoxicity significantly in H9c2 cells in a concentration-dependent manner. Treatment of H9c2 cells with cornin (10 µM) blocked the reduction of expression of phospho-CREB and phospho-Akt in a hypoxic condition. Treatment of rats with cornin (30 mg/kg, iv) protected them from myocardial I/R injury as indicated by a decrease in infarct volume, improvement in hemodynamics, and reduction of severity of myocardial damage. Cornin treatment also attenuated the reduction of expression of phospho-CREB and phospho-Akt in ischemic myocardial tissue. These data suggest that cornin exerts protective effects due to an increase in expression of phospho-CREB and phospho-Akt.
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Zhao J, Bai W, Zhu P, Zhang X, Liu S, Wu L, Ma L, Bi L, Zuo X, Sun L, Huang C, Tian X, Li M, Zhao Y, Zeng X. Chinese SLE Treatment and Research group (CSTAR) registry VII: prevalence and clinical significance of serositis in Chinese patients with systemic lupus erythematosus. Lupus 2016; 25:652-7. [PMID: 26762471 DOI: 10.1177/0961203315625460] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2015] [Accepted: 12/07/2015] [Indexed: 11/16/2022]
Abstract
Objectives To investigate both the prevalence and clinical characteristics of serositis in Chinese patients with systemic lupus erythematosus (SLE) in a large cohort in the Chinese SLE Treatment and Research group (CSTAR) database. Methods A prospective cross-sectional study of patients with SLE was conducted based on the data from the CSTAR registry. Serositis was defined according to the 1999 revised American College of Rheumatology (ACR) criteria for SLE – that is, pleuritis/pleural effusion and/or pericarditis/pericardial effusion detected by echocardiography, chest X-ray or chest computerized tomography (CT) scan. Peritonitis/peritoneal effusion were confirmed by abdominal ultrasonography. We analysed the prevalence and clinical associations of serositis with demographic data, organ involvements, laboratory findings and SLE disease activity. Results Of 2104 patients with SLE, 345 were diagnosed with serositis. The prevalence of lupus nephritis (LN), interstitial lung disease and pulmonary arterial hypertension, as well as the presence of leukocytopenia, thrombocytopenia, hypocomplementemia and anti-dsDNA antibodies was significantly higher in patients with serositis ( P < 0.05). Significantly higher SLE disease activity scores were found in patients with serositis compared to those patients without serositis ( P < 0.05). Lupus-related peritonitis had similar clinical manifestations and laboratory profiles as serositis caused by SLE. Conclusions There is a significant association of nephropathy, interstitial lung disease, pulmonary arterial hypertension, hypocomplementemia, leukocytopenia, thrombocytopenia and elevated anti-dsDNA antibodies with serositis. The results suggest that higher SLE disease activity contributes to serositis development, and should be treated aggressively.
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Jiang Z, Harrington P, Zhang M, Marjani S, Kuo L, Pribenszky C, Tian X. 32 EFFECTS OF HIGH HYDROSTATIC PRESSURE ON EXPRESSION PROFILES OF IN VITRO-PRODUCED, VITRIFIED BOVINE BLASTOCYSTS. Reprod Fertil Dev 2016. [DOI: 10.1071/rdv28n2ab32] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
High hydrostatic pressure (HHP) has been used to enhance stress tolerance and to promote embryo survival before they are subjected to insulting procedures such as cryopreservation. However, the molecular mechanisms of the beneficial effects of HHP are poorly understood. Here in vitro-produced bovine blastocysts were treated with 40, 60, and 80 MPa of HHP for 1 h at either 25 or 37°C, followed by 3 different recovery periods (0, 1, and 2 h) after HHP before vitrification by the solid surface vitrification method (Dinnyes et al. 2000). The re-expansion rates after vitrification-warming were significantly (P < 0.05) higher in embryos treated with 40 or 60 MPa than controls, demonstrating that HHP promotes the in vitro developmental competence of vitrified bovine embryos. However, 80 MPa resulted in significantly reduced re-expansion rates, suggesting that this pressure started to be lethal to bovine blastocysts. In addition, no significant difference was found on re-expansion rates between 25 and 37°C; data were therefore combined for the 2 temperatures. Microarray analysis revealed a total of 399 differentially expressed transcripts, representing 254 unique genes, among different treatment groups. Gene ontology analysis revealed that HHP at 40 and 60 MPa promoted embryo competence through down-regulation of genes involved in cell death and apoptosis, and up-regulation of RNA processing, cellular growth, and proliferation. Moreover, gene expression was also changed by the length of the recovery time after HHP. The significantly over-represented groups are apoptosis and cell death in the 1-h group, and protein folding, response to unfolded protein, and cell cycle in the 2-h group. Although 80 MPa also up-regulated expression of genes for apoptosis, but it also significantly down-regulated genes for protein folding and cell cycle, which may explain why these embryos stopped developing. Taken together, these data suggest that HHP induces specific responses in vitrified bovine blastocysts and promotes their developmental competence through modest transcriptional reprogramming.
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Tian X, Nguyen M, Foote H, Garmey E, Eliasof S, Wang A. CRLX101, an Investigational Nanoparticle Drug Conjugate of Camptothecin, as a Potentially Effective Radiosensitizer in Chemoradiation Treatment of Colorectal Cancer. Int J Radiat Oncol Biol Phys 2015. [DOI: 10.1016/j.ijrobp.2015.07.118] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Zhang W, Tian X, Mumtahana F, Jiao J, Zhang T, Croce KD, Ma D, Kong B, Cui B. The existence of Th22, pure Th17 and Th1 cells in CIN and Cervical Cancer along with their frequency variation in different stages of cervical cancer. BMC Cancer 2015; 15:717. [PMID: 26474968 PMCID: PMC4609069 DOI: 10.1186/s12885-015-1767-y] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2014] [Accepted: 10/10/2015] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND Recently, it is found that T-helper (Th) 22 cells are involved in different types of autoimmune and tumor diseases. But, till now, no study has been carried out to understand the involvement of these cells in cervical cancer (CC). METHODS Flow cytometry was used to determine the expression of interferon gamma (IFN-γ), Interleukin-22 (IL-22), IL-17 in the peripheral blood of healthy controls (HC), CIN and cervical cancer patients. From peripheral blood mononuclear cells (PBMCs), mRNA expression levels of Aryl hydrocarbon receptor (AHR), RAR-related orphan receptor C (RORC), TNF-α and IL-6 were respectively determined. Using the method of ELISA, plasma concentrations of IL-22, IL-17 and TNF-α were examined. RESULTS Th22 and Th17 cells were elevated in CC and CIN patients. Th1 cells and the plasma concentrations of IL-22 in CC patients were significantly increased compared with HC. In CC patients, an increased prevalence of Th22 cells was associated with lymph node metastases. There was a positive correlation between Th22 and Th17 cells, but an approximately negative correlation between Th22 and Th1 cells in CC patients. The mRNA expression of RORC, TNF-α and IL-6 was significantly high in CC patients. CONCLUSIONS Our results indicate that there is a higher circulatory frequency of Th22, Th17 and Th1 cells in CC which may conjointly participate in the pathogenesis and growth of CC.
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Tian X, Li T, Li J, Hu D. GW26-e0254 Effect of early treatment with L-carnitine on left ventricular function and hemodynamics after acute myocardial infarction in SD rats. J Am Coll Cardiol 2015. [DOI: 10.1016/j.jacc.2015.06.371] [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: 10/22/2022]
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Schaich K, Tian X, Xie J. Reprint of “Hurdles and pitfalls in measuring antioxidant efficacy: A critical evaluation of ABTS, DPPH, and ORAC assays”. J Funct Foods 2015. [DOI: 10.1016/j.jff.2015.05.024] [Citation(s) in RCA: 84] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Adamson P, Anghel I, Ashby N, Aurisano A, Barr G, Bishai M, Blake A, Bock G, Bogert D, Bumgarner R, Cao S, Castromonte C, Childress S, Coelho J, Corwin L, Cronin-Hennessy D, de Jong J, Devan A, Devenish N, Diwan M, Escobar C, Evans J, Falk E, Feldman G, Fonville B, Frohne M, Gallagher H, Gomes R, Goodman M, Gouffon P, Graf N, Gran R, Grzelak K, Habig A, Hahn S, Hartnell J, Hatcher R, Hirschauer J, Holin A, Huang J, Hylen J, Irwin G, Isvan Z, James C, Jefferts S, Jensen D, Kafka T, Kasahara S, Koizumi G, Kordosky M, Kreymer A, Lang K, Ling J, Litchfield P, Lucas P, Mann W, Marshak M, Matsakis D, Mayer N, McKinley A, McGivern C, Medeiros M, Mehdiyev R, Meier J, Messier M, Miller W, Mishra S, Mitchell S, Moed Sher S, Moore C, Mualem L, Musser J, Naples D, Nelson J, Newman H, Nichol R, Nowak J, O’Connor J, Orchanian M, Pahlka R, Paley J, Parker T, Patterson R, Pawloski G, Perch A, Phan-Budd S, Plunkett R, Poonthottathil N, Powers E, Qiu X, Radovic A, Rebel B, Ridl K, Römisch S, Rosenfeld C, Rubin H, Sanchez M, Schneps J, Schreckenberger A, Schreiner P, Sharma R, Sousa A, Tagg N, Talaga R, Thomas J, Thomson M, Tian X, Timmons A, Tognini S, Toner R, Torretta D, Urheim J, Vahle P, Viren B, Weber A, Webb R, White C, Whitehead L, Whitehead L, Wojcicki S, Wright J, Zhang V, Zwaska R. Precision measurement of the speed of propagation of neutrinos using the MINOS detectors. Int J Clin Exp Med 2015. [DOI: 10.1103/physrevd.92.052005] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Chen PJ, Li CX, Wen J, Peng YS, Zeng K, Zhang SQ, Tian X, Zhang XB. S159P mutation of keratin 10 gene causes severe form of epidermolytic hyperkeratosis. J Eur Acad Dermatol Venereol 2015; 30:e102-e104. [PMID: 26373619 DOI: 10.1111/jdv.13345] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Wu XD, Tian X, Liu MM, Wu L, Zhao S, Zhao L. Meta-analysis comparing early versus delayed laparoscopic cholecystectomy for acute cholecystitis. Br J Surg 2015; 102:1302-13. [PMID: 26265548 DOI: 10.1002/bjs.9886] [Citation(s) in RCA: 96] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2014] [Revised: 01/14/2015] [Accepted: 05/27/2015] [Indexed: 01/03/2023]
Abstract
BACKGROUND Previous studies comparing early laparoscopic cholecystectomy (ELC) with delayed laparoscopic cholecystectomy (DLC) for acute cholecystitis were incomplete. A meta-analysis was undertaken to compare the cost-effectiveness, quality of life, safety and effectiveness of ELC versus DLC. METHODS PubMed, Embase, the Cochrane Library and Web of Science were searched for randomized clinical trials (RCTs) that compared ELC (performed within 7 days of symptom onset) with DLC (undertaken at least 1 week after symptoms had subsided) for acute cholecystitis. RESULTS Sixteen studies reporting on 15 RCTs comprising 1625 patients were included. Compared with DLC, ELC was associated with lower hospital costs, fewer work days lost (mean difference (MD) -11·07 (95 per cent c.i. -16·21 to -5·94) days; P < 0·001), higher patient satisfaction and quality of life, lower risk of wound infection (relative risk 0·65, 95 per cent c.i. 0·47 to 0·91; P = 0·01) and shorter hospital stay (MD -3·38 (-4·23 to -2·52) days; P < 0·001), but a longer duration of operation (MD 11·12 (4·57 to 17·67) min; P < 0·001). There were no significant differences between the two groups in mortality, bile duct injury, bile leakage, conversion to open cholecystectomy or overall complications. CONCLUSION For patients with acute cholecystitis, ELC appears as safe and effective as DLC. ELC might be associated with lower hospital costs, fewer work days lost, and greater patient satisfaction.
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Shan W, Gao L, Zeng W, Hu Y, Wang G, Li M, Zhou J, Ma X, Tian X, Yao J. Activation of the SIRT1/p66shc antiapoptosis pathway via carnosic acid-induced inhibition of miR-34a protects rats against nonalcoholic fatty liver disease. Cell Death Dis 2015. [PMID: 26203862 PMCID: PMC4650741 DOI: 10.1038/cddis.2015.196] [Citation(s) in RCA: 73] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Recent studies have demonstrated that miR-34a expression is significantly upregulated and associated with apoptosis in nonalcoholic fatty liver disease (NAFLD). Carnosic acid (CA) is a novel antioxidant and a potential inhibitor of apoptosis in organ injury, including liver injury. This study aimed to investigate the signaling mechanisms underlying miR-34a expression and the antiapoptotic effect of CA in NAFLD. CA treatment significantly reduced the high-fat diet (HFD)-induced elevations in aminotransferase activity as well as in serum triglyceride (TG), total cholesterol (TC), low-density lipoprotein cholesterol (LDL-C) and malondialdehyde (MDA) levels but increased serum high-density lipoprotein cholesterol (HDL-C) and hepatic superoxide dismutase (SOD) levels. Moreover, CA treatment ameliorated the increase in cleaved caspase-3 caused by HFD exposure and completely reversed the HFD-induced decreases in manganese superoxide dismutase (MnSOD) and B-cell lymphoma-extra large expression. CA also counteracted the HFD- or palmitic acid (PA)-induced increases in caspase-3 and caspase-9 activity. Mechanistically, CA reversed the HFD- or PA-induced upregulation of miR-34a, which is the best-characterized regulator of SIRT1. Importantly, the decrease in miR-34a expression was closely associated with the activation of the SIRT1/p66shc pathway, which attenuates hepatocyte apoptosis in liver ischemia/reperfusion injury. A dual luciferase assay in L02 cells validated the modulation of SIRT1 by CA, which occurs at least partly via miR-34a. In addition, miR-34a overexpression was significantly counteracted by CA, which prevented the miR-34a-dependent repression of the SIRT1/p66shc pathway and apoptosis. Collectively, our results support a link between liver cell apoptosis and the miR-34a/SIRT1/p66shc pathway, which can be modulated by CA in NAFLD.
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Chen F, Lu X, Shu X, Peng Q, Tian X, Wang G. Predictive value of serum markers for the development of interstitial lung disease in patients with polymyositis and dermatomyositis: a comparative and prospective study. Intern Med J 2015; 45:641-7. [PMID: 25827843 DOI: 10.1111/imj.12754] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2014] [Accepted: 03/22/2015] [Indexed: 02/02/2023]
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Li J, Wu L, Tian X, Zhang J, Shi Y. Intravascular ultrasound observation of the mechanism of no-reflow phenomenon in acute myocardial infarction. PLoS One 2015; 10:e0119223. [PMID: 26035818 PMCID: PMC4452793 DOI: 10.1371/journal.pone.0119223] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2014] [Accepted: 01/23/2015] [Indexed: 11/30/2022] Open
Abstract
Objective To study the mechanism of the no-reflow phenomenon using coronary angiography (CAG) and intravascular ultrasound (IVUS). Methods A total of 120 patients with acute myocardial infarction (AMI) who successfully underwent indwelling intracoronary stent placement by percutaneous coronary intervention (PCI). All patients underwent pre- and post-PCI CAG and pre-IVUS. No-reflow was defined as post-PCI thrombolysis in myocardial infarction (TIMI) grade 0, 1, or 2 flow in the absence of mechanical obstruction. Normal reflow was defined as TIMI grade 3 flow. The pre-operation reference vascular area, minimal luminal cross-sectional area, plaque cross-sectional area, lesion length, plaque volume and plaque traits were measured by IVUS. Results The no-reflow group was observed in 14 cases (11.6%) and normal blood-flow group in 106 cases (89.4%) based on CAG results. There was no statistically significant difference in the patients’ medical history, reference vascular area (no-flow vs. normal-flow; 15.5 ± 3.2 vs. 16.2 ± 3.3, p> 0.05) and lesion length (21.9 ± 5.1 vs. 19.5 ± 4.8, p> 0.05) between the two groups. No-reflow patients had a longer symptom onset to reperfusion time compared to normal blood-flow group [(6.6 ± 3.1) h vs (4.3 ± 2.7) h; p< 0.05] and higher incidence of TIMI flow grade< 3 (71.4% vs 49.0%, p< 0.05). By IVUS examination, the no-reflow group had a significantly increased coronary plaque area and plaque volume compared to normal blood-flow group [(13.7 ± 3.0) mm2 vs (10.2 ± 2.9) mm2; (285.4 ± 99.8) mm3 vs (189.7 ± 86.4) mm3; p< 0.01]. The presence of IVUS-detected soft plaque (57.1% vs. 24.0%, p< 0.01), eccentric plaque (64.2% vs. 33.7%, p< 0.05), plaque rupture (50.0% vs. 21.2%, p< 0.01), and thrombosis (42.8% vs. 15.3%) were significantly more common in no-reflow group. Conclusion There was no obvious relationship between the coronary risk factors and no-reflow phenomenon. The symptom onset to reperfusion time, TIMI flow grade before stent deployment, plaque area, soft plaques, eccentric plaques, plaque rupture and thrombosis may be risk factors for the no-reflow phenomenon after PCI.
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