6,063 research outputs found

    Nonsmooth Morse-Sard theorems

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    We prove that every function f:Rn→Rf:\mathbb{R}^n\to \mathbb{R} satisfies that the image of the set of critical points at which the function ff has Taylor expansions of order n−1n-1 and non-empty subdifferentials of order nn is a Lebesgue-null set. As a by-product of our proof, for the proximal subdifferential ∂P\partial_{P}, we see that for every lower semicontinuous function f:R2→Rf:\mathbb{R}^2\to\mathbb{R} the set f({x∈R2:0∈∂Pf(x)})f(\{x\in\mathbb{R}^2 : 0\in\partial_{P}f(x)\}) is L1\mathcal{L}^{1}-null.Comment: Final version. The main result has been strengthened thanks to the suggestions of a refere

    One hundred of cells generations connect the resistance to drugs and the replicative aging mechanisms

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    There are researchs that reveal a relationship between acquired resistance to antineoplastic drugs and aging. Therefore, the identification of genes involved in senescence could have a potential therapeutic utility for the prediction and/or prevention of resistance to antineoplastic drugs. The aim of this work is to study the relationship between replicative aging and acquired resistance to Cisplatin and Bleomycin in the yeast Saccharomyces cerevisiae.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech

    Mechanisms of cross resistance between cisplatin and bleomycin in saccharomyces cerevisiae

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    Tumor cells can simultaneously acquire resistance against a diverse group of drugs. This phenomenon is called pleotropic resistance or multidrug resistance. This mechanism could explain the tumor resistance observed in chemotherapy treatments with multiple agents. The aim of this work is to study possible mechanisms of cross resistance between Cisplatin and Bleomycin in Saccharomyces cerevisiae.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech

    New markers of bleomycin resistance

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    Resistance to chemotherapy is one of the main problems of this type of therapy. Studies carried out determine the usefulness of predictive biomarkers to improve this treatment. The aim of this work is to carry out a proteomic analysis in the wild type strain and bleomycin resistant strain of Saccharomyces cerevisiae in order to look for possible markers of resistance, as well as the mechanisms involved.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech

    Proteomic analysis in wild type and cisplatin resistant yeast strain of saccharomyces cerevisiae

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    Research carried out in oncology has allowed the identification and characterization of molecular markers of resistance to antineoplastic drugs. It supposes a great advance and allows the administration of customized chemotherapies to patients. The aim of this work is to carry out a proteomic analysis in the wild type strain and cisplatin resistant strain of Saccharomyces cerevisiae in order to look for possible markers of resistance, as well as the mechanisms involved.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech

    [Review of] James P. Danky and Wayne A. Wiegand, eds. Print Culture in a Diverse America. The History of Communication Series

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    This volume functions both in illuminating minority perspectives in print culture and describing and furthering the field of print culture studies. The introduction then both discusses the structure and purpose of the field and argues that the book\u27s contents challenge it in a variety of ways. Three thematic sections follow which cover, respectively, lost serials, the publishing industry, and written reconstructions of historical events

    Resistance to bleomycin increases the chronological life of cells

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    The identification of genes involved in chronological aging could have a potential utility as molecular markers in the chemotherapy treatment of cancer. The aim of this work is to study the relationship between the chronological aging and the resistance to Bleomycin for the purpose of establish the basic interactions between these phenomenons for further investigation of molecular markers.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech

    Relationship between chronological aging and acquired resistance to cisplatin in the yeast saccharomyces cerevisiae

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    The Sir2 gene is associated with an increase in longevity in yeasts, worms, flies and rodents. The human homolog, Sirt1, is also involved in longevity, by inhibiting cellular senescence. Studies carry out in tumor cells of neuroblastoma, osteosarcoma, breast and ovary, resistant and sensitive to antineoplastic drugs, suggest that the increase of Sirt1 expression may represent a general phenomenon associated with resistance to chemotherapy, independent of cell type or drug used to induce resistance. Thus, after analyzing tumor biopsies after treating patients with chemotherapy, high amounts of Sirt1 have been observed. The aim of this work is to study the relationship between chronological aging and acquired resistance to Cisplatin in the yeast Saccharomyces cerevisiae.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech

    Resistance acquisition after seven cycles of in vitro bleomycin exposure

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    Bleomycin is an antineoplastic drug that causes DNA damage by intra- and inter-strand crosslink and DNA strand breaks. This drug is used to treat several types of cancer. The aim of this work is to study the effect of Bleomycin on S. cerevisiae cells and select bleomycin-resistant cells to study the process of resistance acquisition to establish new protocols in in vitro drugs exposure.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech
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