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- Saurí, J, et al.
(författare)
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Adaptation and validation of the spanish version of the Spinal Cord Lesion-related Coping Strategies Questionnaire (SCL CSQ-S).
- 2014
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Ingår i: Spinal Cord. - : Springer Science and Business Media LLC. - 1362-4393 .- 1476-5624. ; 52:11, s. 842-849
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Tidskriftsartikel (refereegranskat)abstract
- CONCLUSION: The results of the study show some evidence for the robustness of the structure of SCL CSQ-S and show that the Spanish version of the questionnaire largely replicate previous results. Coping strategies, especially Acceptance, are related to adaptation to injury.STUDY DESIGN: Cross-sectional validation study.OBJECTIVES: To adapt the Spinal Cord Lesion-related Coping Strategies Questionnaire into the Spanish language (SCL CSQ-S) and to examine the relationship between coping strategies, global quality of life and psychological adaptation.SETTING: Data were collected through individuals with spinal cord injury (SCI) now living in the community who completed their routine follow-up assessment at the Institute Guttmann in Barcelona, Spain.METHODS: Forward and backward translation into Spanish of the English version of the questionnaire. Questionnaires of global Quality of Life, Community Integration, Coping, Depression, Anxiety and Functional Independence were administered to 349 adults with paraplegia and 162 adults with tetraplegia. Statistical analysis included confirmatory factor analysis and regression analysis.RESULTS: The factorial structure of the questionnaire was partly verified. The original correlated, three-factor model sufficiently fit the data obtained in this study: χ(2)(48)=109.46; P<0.001; Comparative Fit Index=0.96; Tucker-Lewis Index=0.96; Root Mean Square Error of Approximation=0.050 (0.038-0.062); Akaike information criterion=13.46. Items were found to be good indicators of their respective latent factors, showing adequate factorial charge ranges (between 0.41 and 0.75). The reliability coefficient (Cronbach's α) for the Acceptance subscale was 0.74, for Social reliance 0.76 and for Fighting spirit 0.69. Coping strategies as measured by SCL-CSQ-S contributed to the prediction of outcomes related to adaptation to disability.
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- Sauri, Vicenta, et al.
(författare)
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Proton/Hydrogen Transfer Mechanisms in the Guanine-€“Cytosine Base Pair : Photostability and Tautomerism
- 2013
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Ingår i: Journal of Chemical Theory and Computation. - : American Chemical Society (ACS). - 1549-9618 .- 1549-9626. ; 9:1, s. 481-496
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Tidskriftsartikel (refereegranskat)abstract
- Proton/hydrogen-transfer processes have been broadly studied in the past 50 years to explain the photostability and the spontaneous tautomerism in the DNA base pairs. In the present study, the CASSCF/CASPT2 methodology is used to map the two-dimensional potential energy surfaces along the stretched NH reaction coordinates of the guanine–cytosine (GC) base pair. Concerted and stepwise pathways are explored initially in vacuo, and three mechanisms are studied: the stepwise double proton transfer, the stepwise double hydrogen transfer, and the concerted double proton transfer. The results are consistent with previous findings related to the photostability of the GC base pair, and a new contribution to tautomerism is provided. The C-based imino-oxo and imino-enol GC tautomers, which can be generated during the UV irradiation of the Watson–Crick base pair, have analogous radiationless energy-decay channels to those of the canonical base pair. In addition, the C-based imino-enol GC tautomer is thermally less stable. A study of the GC base pair is carried out subsequently taking into account the DNA surroundings in the biological environment. The most important stationary points are computed using the quantum mechanics/molecular mechanics (QM/MM) approach, suggesting a similar scenario for the proton/hydrogen-transfer phenomena in vacuo and in DNA. Finally, the static model is complemented by ab initio dynamic simulations, which show that vibrations at the hydrogen bonds can indeed originate hydrogen-transfer processes in the GC base pair. The relevance of the present findings for the rationalization of the preservation of the genetic code and mutagenesis is discussed.
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