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Träfflista för sökning "WFRF:(Donato Stefano Di) "

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2.
  • Kuntze, Kim, et al. (author)
  • A visible-light-driven molecular motor based on barbituric acid
  • 2023
  • In: Chemical Science. - : Royal Society of Chemistry. - 2041-6520 .- 2041-6539. ; 14:32, s. 8458-8465
  • Journal article (peer-reviewed)abstract
    • We present a class of visible-light-driven molecular motors based on barbituric acid. Due to a serendipitous reactivity we observed during their synthesis, these motors possess a tertiary stereogenic centre on the upper half, characterised by a hydroxy group. Using a combination of femto- and nanosecond transient absorption spectroscopy, molecular dynamics simulations and low-temperature H-1 NMR experiments we found that these motors operate similarly to push-pull second-generation overcrowded alkene-based molecular motors. Interestingly, the hydroxy group at the stereocentre enables a hydrogen bond with the carbonyl groups of the barbituric acid lower half, which drives a sub-picosecond excited-state isomerisation, as observed spectroscopically. Computational simulations predict an excited state "lasso" mechanism where the intramolecular hydrogen bond pulls the molecule towards the formation of the metastable state, with a high predicted quantum yield of isomerisation (68%) in gas phase.
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3.
  • Squitieri, Ferdinando, et al. (author)
  • Homozygosity for CAG mutation in Huntington disease is associated with a more severe clinical course.
  • 2003
  • In: Brain. - : Oxford University Press (OUP). - 0006-8950 .- 1460-2156. ; 126:Pt 4, s. 946-55
  • Journal article (peer-reviewed)abstract
    • Huntington disease is caused by a dominantly transmitted CAG repeat expansion mutation that is believed to confer a toxic gain of function on the mutant protein. Huntington disease patients with two mutant alleles are very rare. In other poly(CAG) diseases such as the dominant ataxias, inheritance of two mutant alleles causes a phenotype more severe than in heterozygotes. In this multicentre study, we sought differences in the disease features between eight homozygotes and 75 heterozygotes for the Huntington disease mutation. We identified subjects homozygous for the Huntington disease mutation by DNA testing and compared their clinical features (age at onset, symptom presentation, disease severity and disease progression) with those of a group of heterozygotes, who were assessed longitudinally. The age at onset of symptoms in the homozygote cases was within the range expected for heterozygotes with the same CAG repeat lengths, whereas homozygotes had a more severe clinical course. The observation of a more rapid decline in motor, cognitive and behavioural symptoms in homozygotes was consistent with the extent of neurodegeneration as available at imaging in three patients, and at the post-mortem neuropathological report in one case. Our analysis suggests that although homozygosity for the Huntington disease mutation does not lower the age at onset of symptoms, it affects the phenotype and the rate of disease progression. These data, once confirmed in a larger series of patients, point to the possibility that the mechanisms underlying age at onset and disease progression in Huntington disease may differ.
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  • Result 1-3 of 3
Type of publication
journal article (3)
Type of content
peer-reviewed (3)
Author/Editor
Ivanics, Tommy (1)
Sapisochin, Gonzalo (1)
Turner, David (1)
Hayden, Michael R (1)
Crespi, Stefano (1)
Amaddeo, Giuliana (1)
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Almqvist, Elisabeth ... (1)
Pooler, Daisy R. S. (1)
Feringa, Ben L. (1)
Squitieri, Ferdinand ... (1)
Rubinsztein, David C (1)
Gellera, Cinzia (1)
Iavarone, Massimo (1)
Invernizzi, Federica (1)
Mazza, Stefano (1)
Zavaglia, Claudio (1)
Sanduzzi‐Zamparelli, ... (1)
Fraile‐López, Miguel (1)
Czauderna, Carolin (1)
Di Costanzo, Giovann ... (1)
Bhoori, Sherrie (1)
Pinter, Matthias (1)
Manini, Matteo Angel ... (1)
Yunquera, Ainhoa Fer ... (1)
Piñero, Federico (1)
Blanco Rodríguez, Ma ... (1)
Anders, Margarita (1)
Aballay Soteras, Gab ... (1)
Villadsen, Gerda Eli ... (1)
Yoon, Peter Daechul (1)
Cesarini, Lucia (1)
Díaz‐González, Álvar ... (1)
González‐Diéguez, Ma ... (1)
Tortora, Raffaella (1)
Weinmann, Arndt (1)
Mazzaferro, Vincenzo (1)
Romero Cristóbal, Ma ... (1)
Crespo, Gonzalo (1)
Regnault, Helene (1)
De Giorgio, Massimo (1)
Varela, Maria (1)
Prince, Rebecca (1)
Scudeller, Luigia (1)
Donato, Maria France ... (1)
Wörns, Marcus‐Alexan ... (1)
Bruix, Jordi (1)
Lampertico, Pietro (1)
Reig, Maria (1)
Kuntze, Kim (1)
Di Donato, Mariangel ... (1)
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University
Uppsala University (2)
Marie Cederschiöld högskola (1)
Language
English (3)
Research subject (UKÄ/SCB)
Medical and Health Sciences (2)
Natural sciences (1)

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