91 research outputs found

    Pseudoneoplastic lesions of the testis and paratesticular structures

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    Pseudotumors or tumor-like proliferations (non-neoplastic masses) and benign mimickers (non-neoplastic cellular proliferations) are rare in the testis and paratesticular structures. Clinically, these lesions (cysts, ectopic tissues, and vascular, inflammatory, or hyperplastic lesions) are of great interest for the reason that, because of the topography, they may be relevant as differential diagnoses. The purpose of this paper is to present an overview of the pseudoneoplasic entities arising in the testis and paratesticular structures; emphasis is placed on how the practicing pathologist may distinguish benign mimickers and pseudotumors from true neoplasia. These lesions can be classified as macroscopic or microscopic mimickers of neoplasia

    Ingle side /

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    Mode of access: Internet.From the Thomas A. Edison Collection of American Sheet Music

    On with the tartan : a favorite Scotch song /

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    Mode of access: Internet.From the Thomas A. Edison Collection of American Sheet Music

    Analysis of translation initiation using a translation control reporter system

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    The study of translational control has become increasingly important, as aberrant translation has been linked to the etiology of human diseases. Nevertheless, a convenient research tool to measure and quantify cellular translational activity has not been developed to date. Here we present a translation control reporter system (TCRS) for straightforward and accurate analysis of cellular translational activity. Our method relies on the expression of two unique reporter peptides from a single messenger RNA transcript. Using TCRS-expressing cell lines, changes in initiation of translation have been detected in response to translationally active drugs. Accordingly, TCRS may promote the discovery of novel agents that modulate translation. TCRS may also be used in the identification of signal transduction pathways that impinge on translation control. Furthermore, the modular design allows the exchange of regulatory cassettes for the examination of other putative cis-regulatory mRNA elements. The time required for the procedure depends on whether transient TCRS expression is used or stable TCRS-expressing cell lines have to be produced and will range from 5 to 14 d, respectively
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