This paper describes the synthesis and characterization of a novel material with reversible thermotropic transmittance, prepared via emulsion polymerization. The material consists of 75% Oc-tadecylamine (ODA) and 1% a...
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Mechano-active scaffolds were fabricated from very elastic poly(lactide-co-carprolactone) by a gel-pressing method. The scaffolds were seeded with bone marrow stromal cells and the continuous compressive deformation w...
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Mechano-active scaffolds were fabricated from very elastic poly(lactide-co-carprolactone) by a gel-pressing method. The scaffolds were seeded with bone marrow stromal cells and the continuous compressive deformation was applied to cell-polymer constructs in the chondrogenic media. Then, they were implanted in nude mice subcutaneously to evaluate for the effect of dynamic compression for regeneration of cartilage. From the biochemical analyses, chondrogenic differentiation was sustained and enhanced significantly and chondral extracellular matrix was increased through mechanical stimulation. Histological analyses showed that implants stimulated mechanically formed mature and well-developed cartilaginous tissue, as evidenced by bone marrow derived chondrocytes within lacunae. Consequently, the periodic application of dynamic compression can encourage bone marrow stromal cells to differentiation to chondrogenic lineage and to maintain their phenotypes.
Today in Scientific Data, two compendia of geochemical and multi-omic sequence information (DNA, RNA, protein) generated over almost a decade of time series monitoring in a seasonally anoxic coastal marine setting are...
During transgenic plant production, tissue culture often carries epigenetic, and genetic changes that underlie somaclonal variations, leading to unpredictable phenotypes. Additionally, specific treatments for rice (Or...
During transgenic plant production, tissue culture often carries epigenetic, and genetic changes that underlie somaclonal variations, leading to unpredictable phenotypes. Additionally, specific treatments for rice (Oryza sativa) transformation processes may individually or jointly contribute to somaclonal variations, but their specific impacts on rice epigenomes toward transcriptional variations remain unknown. Here, the impact of individual transformation treatments on genome-wide DNA methylation and the transcriptome were examined. In addition to activating stress-responsive genes, individual transformation components targeted different gene expression modules that were enriched in specific functional categories. The transformation treatments strongly impacted DNA methylation and expression; 75% were independent of tissue culture. Furthermore, our genome-wide analysis showed that the transformation treatments consistently resulted in global hypo-CHH methylation enriched at promoters highly associated with downregulation, particularly when the promoters were colocalized with miniature inverted-repeat transposable elements. Our results clearly highlight the specificity of impacts triggered by individual transformation treatments during rice transformation with the potential association between DNA methylation and gene expression. These changes in gene expression and DNA methylation resulting from rice transformation treatments explain a significant portion of somaclonal variations, that is, way beyond the tissue culture effect.
Interactions of the cell with its environment are mediated by the cell membrane and membrane-localized molecules. Supported lipid bilayers have enabled the recapitulation of the basic properties of cell membranes and ...
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Robust species identification of unprocessed and processed meat is essential to ensure the safety and quality of food products. Meat adulteration results from the wrong identification of animal sources, contamination ...
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