La poesía de Leopoldo Lugones o del modernismo al "ultra".

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The nanomechanics of neurotoxina proteins reveals common features at the start of the neurodegeneration cascade.

1 pags. -- 56th Annual Meeting of the Biophysical-Society, FEB 25-29, 2012, San Diego, CAAmyloidogenic neurodegenerative diseases are incurable conditions caused by specific largely disordered proteins. However, the underlying molecular mechanism remains elusive. A favored hypothesis postulates that a critical conformational change in the monomer (an ideal therapeutic target) in these ‘‘neurotoxic proteins’’ triggers the pathogenic cascade. Using force spectroscopy with unequivocal singlemolecule identification we demonstrate a rich conformational polymorphism at their monomer level. This polymorphism strongly correlates with amyloidogenesis and neurotoxicity: it is absent in a fibrillization-incompetent mutant, favored by familial-disease mutations and diminished by a surprisingly promiscuous inhibitor of the monomeric b-conformational change and neurodegeneration. The demonstrated ability to inhibit the conformational heterogeneity of these proteins by a single pharmacological agent reveals common features in the monomer and suggests a common pathway to diagnose, prevent, halt or reverse multiple neurodegenerative disease

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Dios sobre la muerte : Poemas : Soloquio a través de una vida 1914-1939 A.V.

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