30 results match your criteria: "Meshalkin National Medical Research Centre[Affiliation]"

Objectives: The type of conduit used for right ventricular outflow tract (RVOT) reconstruction during the Ross procedure remains problematic because of the limited availability of pulmonary allografts and the unsatisfactory long-term results associated with the use of xenografts. Polytetrafluoroethylene (PTFE) conduits have been proposed as an alternative. This study evaluated the results of RVOT reconstruction using a PTFE conduit during the Ross procedure.

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Objective: To investigate the 1-year survival in cardiac surgical patients with lung disease, including previously undiagnosed cases.

Design: Prospective cohort study.

Setting: Tertiary hospital.

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For the first time, two types of hybrid cells with embryonic stem (ES) cell-like and fibroblast-like phenotypes were produced through the fusion of mouse ES cells with fibroblasts. Transcriptome analysis of 2,848 genes differentially expressed in the parental cells demonstrated that 34-43% of these genes are expressed in hybrid cells, consistent with their phenotypes; 25-29% of these genes display intermediate levels of expression, and 12-16% of these genes maintained expression at the parental cell level, inconsistent with the phenotype of the hybrid cell. Approximately 20% of the analyzed genes displayed unexpected expression patterns that differ from both parents.

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Article Synopsis
  • In voles (Microtus levis), preimplantation embryo and extraembryonic tissue cells experience a process called imprinted X chromosome inactivation (iXCI), which is initiated by the long non-coding RNA known as Xist.
  • The study used vole trophoblast stem (TS) cells to explore the chromatin structure of the inactive X chromosome, noting the presence of certain proteins and histone modifications.
  • Findings revealed that while Xist RNA didn't play a major role in maintaining the inactive state of the X chromosome, it was essential for recruiting an additional histone modification during the differentiation of these cells.
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Heparan sulfate (HS) is an important component of the extracellular matrix and cell surface, which plays a key role in cell-cell and cell-matrix interactions. Functional activity of HS directly depends on its structure, which determined by a complex system of HS biosynthetic enzymes. During malignant transformation, the system can undergo significant changes, but for glioma, HS biosynthesis has not been studied in detail.

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