3 research outputs found

    Supplementary Material for: A Novel Phytase Derived from an Acidic Peat-Soil Microbiome Showing High Stability under Acidic Plus Pepsin Conditions

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    Four novel phytases of the histidine acid phosphatase family were identified in two publicly available metagenomic datasets of an acidic peat-soil microbiome in northeastern Bavaria, Germany. These enzymes have low similarity to all the reported phytases. They were overexpressed in <i>Escherichia coli</i> and purified. Catalytic efficacy in simulated gastric fluid was measured and compared among the four candidates. The phytase named rPhyPt4 was selected for its high activity. It is the first phytase identified from unculturable Acidobacteria. The phytase showed a longer half-life than all the gastric-stable phytases that have been reported to date, suggesting a strong resistance to low pH and pepsin. A wide pH profile was observed between pH 1.5 and 5.0. At the optimum pH (2.5) the activity was 2,790 μmol/min/mg at the physiological temperature of 37°C and 3,989 μmol/min/mg at the optimum temperature of 60°C. Due to the competent activity level as well as the high gastric stability, the phytase could be a potential candidate for practical use in livestock and poultry feedin

    Supplementary Material for: A Minimally Invasive Technique for Occluding Large Muscular Ventricular Septal Defects in Infants

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    <b><i>Objective:</i></b> This study investigated the feasibility, timing and indications for closure of large muscular ventricular septal defects (VSDs) in infants without use of a cardiopulmonary bypass. <b><i>Methods:</i></b> A total of 9 infants with large muscular VSDs ranging in size from 7 to 15 mm were treated by minimally invasive closure without cardiopulmonary bypass between April 2010 and February 2013. <b><i>Results:</i></b> All surgeries were successful without resulting in uncontrolled systemic infection, a pulmonary hypertensive crisis or a severely low cardiac output, and with an apparently shorter operation time and postoperative tracheal cannula. <b><i>Conclusions:</i></b> VSD closure without cardiopulmonary bypass can improve the efficacy and prognosis of infants with large muscular VSDs and concurrent pulmonary infections or respiratory failure

    Supplementary Material for: LOC101930370/MiR-1471 Axis Modulates the Hedgehog Signaling Pathway in Breast Cancer

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    <b><i>Background/Aims:</i></b> Non-coding RNAs (ncRNAs) play vital regulatory roles in many tumors. However, the functional roles of these transcripts responsible for their dysregulation in breast cancer (BC) are not thoroughly understood. <b><i>Methods:</i></b> We examined the expression of microRNA miR-1471 in BC specimens. Online analysis tools predicted that lncRNA LOC101930370 might act as an endogenous ‘sponge’ by competing for miR-1471 binding targets. Luciferase assays were used to prove the interaction of LOC101930370, miR-1471 and SHH. Edu, wound-healing and transwell assays were used to verify the contribution of miR-1471 and LOC101930370 on MCF-7 cells proliferation and metastasis. Gain and loss of function studies were performed to evaluate the relevance of Hedgehog pathway with LOC101930370/miR-1471 regulating axis in MCF-7 cells. <b><i>Results:</i></b> The expression of miR-1471 was markedly downregulated in BC. Inhibition of miR-1471 by LOC101930370 was proved by luciferase assay. Knockdown of LOC101930370 suppressed BC cells progression. MiR-1471 inhibitor resulted in a more aggressive metastasis of MCF-7 cells. Moreover, SHH and Gli-1 expression were significantly suppressed by LOC101930370 knockdown, and upregulated by miR-1471 inhibitor transfection. <b><i>Conclusions:</i></b> Collectively, our study reveals the interaction between LOC101930370 and miR-1471 for the first time. LOC101930370 positively regulates the expression of SHH by sponging miR-1471, which sheds new light on lncRNA-directed diagnostics and therapeutics in BC
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