1,931 research outputs found

    Transcriptome profiling of the floating-leaved aquatic plant Nymphoides peltata in response to flooding stress

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    This table provides all differentially expressed genes meeting the threshold (FDR ≤ 0.01) and the GO terms that the differentially expressed genes were enriched. (XLS 207 kb

    Urinary Metabolomics on the Biochemical Profiles in Diet-Induced Hyperlipidemia Rat Using Ultraperformance Liquid Chromatography Coupled with Quadrupole Time-of-Flight SYNAPT High-Definition Mass Spectrometry

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    Ultraperformance liquid chromatography coupled with quadrupole time-of-flight synapt high-definition mass spectrometry metabolomics was used to characterize the urinary metabolic profiling of diet-induced hyperlipidaemia in a rat model. Analysis was done by orthogonal partial least squares discriminant analysis, correlation analysis, heat map analysis, and KEGG pathways analysis. Potential biomarkers were chosen by S-plot and were identified by accurate mass, isotopic pattern, and MS/MS fragments information. Significant differences in fatty acid, amino acid, nucleoside, and bile acid were observed, indicating the perturbations of fatty acid, amino acid, nucleoside, and bile acid metabolisms in diet-induced hyperlipidaemia rats. This study provides further insight into the metabolic profiling across a wide range of biochemical pathways in response to diet-induced hyperlipidaemia

    Evaluation of MicroRNA 125b as a potential biomarker for postmenopausal osteoporosis

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    Purpose: To identify significant dysregulated miRNAs in postmenopausal  osteoporosis in Chinese women and to test whether any of these miRNAs have diagnostic potential as circulatory biomarkers for postmenopausal osteoporosis.Methods: Thirty osteoporotic patients and 30 non-osteoporotic healthy individuals were recruited, and blood and bone tissue samples were collected from them. miRNA expression profiling and quantitative real-time polymerase chain reaction  (qRT-PCR) were used to identify and substantiate dysregulated miRNAs in blood sera and bone tissue from osteoporotic patients. Receiver operating characteristic curve (ROC) analysis was carried out to assess the diagnostic potential of significantly dysregulated miRNAs.Results: Based on profiling and qRT-PCR, miR-125b, miR-30 and miR-5914 were significantly upregulated in the blood sera and bone tissues of patients with postmenopausal osteoporosis. In all the experiments carried out, miR-125b showed the highest levels of upregulation both in the blood sera and bone tissue compared to other upregulated miRNAs in osteoporotic patients. ROC analysis indicate that the AUC of miR-125b was the highest amongst the upregulated miRNAs.Conclusion: miR-125b is the highest significantly upregulated miRNA in  postmenopausal osteoporosis. Furthermore, circulating miR-125b has the potential of a non-invasive biomarker for postmenopausal osteoporosis.Keywords: Postmenopausal osteoporosis, Profiling, Up-regulation, miR-125b,  Biomarke

    An Emotional Skills Intervention for Elementary Children with Autism in China: A Pilot Study

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    The purpose of this pilot study was to examine the effects of an emotional skills intervention on behavioral and emotional competence, as well as on communication for children with autism in China. Eight children (seven boys and one girl), aged 7 to 8, participated in this study. We used a pre and posttest group design. The intervention consisted of 10 group sessions and four individual sessions. Each group session had two or three children. The intervention curriculum consisted of emotion recognition, emotion recognition within context, self-expression of emotions, seeking help when encountering problems, and techniques for emotion regulation. Results indicated that the intervention significantly improved children’s emotional skills, behavioral and emotional competence, and communication. The potential implications of this study for elementary children with autism in China are also discussed

    Tetra­kis(μ-3,4-dimethoxy­phenyl­acetato)bis­[(3,4-dimethoxy­phenyl­acetato)(1,10-phenanthroline)dysprosium(III)]

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    The title centrosymmetric dinuclear dysprosium(III) complex, [Dy2(C10H11O4)6(C12H8N2)2] or [Dy(L)3phen]2, is comprised of six 3,4-dimethoxy­phenylacetate (L) anions, two 1,10-phenanthroline (phen) mol­ecules and two DyIII ions. The DyIII atom is nine-coordinated by seven O atoms from five L ligands and two N atoms from the phen mol­ecules. The L ligands are coordinated to the DyIII ion in three coordination modes: chelating, bridging and bridging-tridentate. C—H⋯O hydrogen bonding interactions consolidate the crystal packing

    Association between cystatin C and the interaction of pulmonary tuberculosis with chronic diseases

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    Purpose: To determine the association between Cystatin C (Cys C) levels and the interaction of pulmonary tuberculosis (PTB) with chronic diseases (CD).Methods: Participants (n = 356) were selected randomly from The First Affiliated Hospital of Wannan Medical College, China, and divided into 4 groups: normal control group (n = 80), PTB group (n = 98), chronic disease group (n = 146), and PTB combined with chronic disease group (PTB+CD, n = 31). The investigation included information on demographics and analysis of blood samples for Cys C, liver function, renal function, blood glucose and other biochemical indices.Results: The highest level of Cys C was obtained in PTB + CD group. Before and after adjusting eGFR, there was no association between Cys C and PTB or/and chronic disease. However abnormal levels of Cys C were significantly higher in PTB+CD group after adjusting eGFR (OR = 4.014, p = 0.0125).Conclusion: Higher levels of Cys C may be associated with chronic diseases co existing with PTB.Keywords: Cystatin C, Pulmonary tuberculosis, Chronic diseases, Inflammatio

    Upregulation of microRNA-125b contributes to leukemogenesis and increases drug resistance in pediatric acute promyelocytic leukemia

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    <p>Abstract</p> <p>Background</p> <p>Although current chemotherapy regimens have remarkably improved the cure rate of pediatric acute promyelocytic leukemia (APL) over the past decade, more than 20% of patients still die of the disease, and the 5-year cumulative incidence of relapse is 17%. The precise gene pathways that exert critical control over the determination of cell lineage fate during the development of pediatric APL remain unclear.</p> <p>Methods</p> <p>In this study, we analyzed <it>miR-125b </it>expression in 169 pediatric acute myelogenous leukemia (AML) samples including 76 APL samples before therapy and 38 APL samples after therapy. The effects of enforced expression of <it>miR-125b </it>were evaluated in leukemic cell and drug-resistant cell lines.</p> <p>Results</p> <p><it>miR-125b </it>is highly expressed in pediatric APL compared with other subtypes of AML and is correlated with treatment response, as well as relapse of pediatric APL. Our results further demonstrated that <it>miR-125b </it>could promote leukemic cell proliferation and inhibit cell apoptosis by regulating the expression of tumor suppressor BCL2-antagonist/killer 1 (Bak1). Remarkably, <it>miR-125b </it>was also found to be up-regulated in leukemic drug-resistant cells, and transfection of a <it>miR-125b </it>duplex into AML cells can increase their resistance to therapeutic drugs,</p> <p>Conclusions</p> <p>These findings strongly indicate that <it>miR-125b </it>plays an important role in the development of pediatric APL at least partially mediated by repressing BAK1 protein expression and could be a potential therapeutic target for treating pediatric APL failure.</p

    Performance of a dipstick dye immunoassay for rapid screening of Schistosoma japonicum infection in areas of low endemicity

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    BACKGROUND: The dipstick dye immunoassay (DDIA), recently commercially available in the People's Republic of China (P.R. China), is a rapid and simple test to detect human antibodies against Schistosoma Japonicum. Its performance and utility for screening schistosome infection in low endemic areas is little known. We therefore carried out a cross-sectional survey in seven villages with low endemicity of schistosomiasis in P.R. China and assessed the performance and utility of DDIA for diagnosis of schistosomiasis. Stool samples were collected and examined by the Kato-Katz method and the miracidium hatching technique. Serum samples, separated from whole blood of participants, were tested by DDIA. RESULTS: 6285 individuals aged 6-65 years old participated in this study, with a prevalence of schistosomiasis of 4.20%. Using stool examination as a gold reference standard, DDIA performed with a high overall sensitivity of 91.29% (95% CI: 87.89-94.69%) and also a high negative predictive value, with a mean value of 99.29% (95% CI: 98.99-99.58%). The specificity of DDIA was only moderate (53.08%, 95% CI: 51.82-54.34%). Multivariate analysis indicated that age, occupation and history of schistosome infection were significantly associated with the false positive results of DDIA. CONCLUSIONS: DDIA is a sensitive, rapid, simple and portable diagnostic assay and can be used as a primary approach for screening schistosome infection in areas of low endemicity. However, more sensitive and specific confirmatory assays need to be developed and combined with DDIA for targeting chemotherapy accurately
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