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- Andersson, Inger
(författare)
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Catalysis and regulation in Rubisco.
- 2008
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Ingår i: Journal of Experimental Botany. - : Oxford University Press (OUP). - 0022-0957 .- 1460-2431. ; 59:7, s. 1555-1568
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Tidskriftsartikel (refereegranskat)abstract
- Ribulose-1,5-bisphosphate carboxylase/oxygenase (Rubisco) catalyses the incorporation of inorganic CO(2) into the organic molecules of life. Rubisco is extremely inefficient as a catalyst and its carboxylase activity is compromised by numerous side-reactions including oxygenation of its sugar phosphate substrate by atmospheric O(2). The reduction in the catalytic efficiency as a result of these processes has implications for crop yield, nitrogen and water usage, and for the global carbon cycle. Several aspects of Rubisco including its complex biosynthesis and multi-step catalytic reaction are subject to tight control involving light, cellular metabolites, and molecular chaperones. Numerous high-resolution crystal structures of different forms of Rubisco are now available, including structures of mutant enzymes. These provide a molecular framework for the understanding of these processes at the molecular level.
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- Andersson, Inger, 1964, et al.
(författare)
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Health-related quality of life in patients undergoing allogeneic stem cell
- 2009
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Ingår i: Cancer Nursing. - 0162-220X. ; 32:4
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Tidskriftsartikel (refereegranskat)abstract
- The aim of this prospective study was to describe health-related quality of life (HRQOL) in patients during the first year after stem cell transplantation (SCT) who were undergoing reduced intensive conditioning (RIC) compared with patients undergoing myeloablative conditioning (MAC). Fifty-seven patients (25 for MAC and 32 for RIC) were enrolled in the study. HRQOL was assessed at 6 occasions during the first year after SCT using European Organization for Research and Treatment of Cancer Quality of Life Questionnaire and the 19-item treatment-specific module High-Dose Chemotherapy. Both groups reported most symptoms and worst functioning 1 month after SCT, but there were substantial differences. The MAC group deteriorated considerably in 20 symptom scales compared with 8 in the RIC group (score differences <10; P values ranged from .001 to .05). Dry mouth, sore mouth, appetite loss, and change of taste were among the most frequent symptoms in both groups. Thereafter, the functioning improved and the symptom scores decreased and returned to baseline in both groups, except dry mouth, which remained a worse problem for the MAC group. Overall, the RIC group regained health and QOL faster than the MAC group did. However, there were no significant differences in global QOL between the groups 1 year after SCT.
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- Andersson, Inger, 1964, et al.
(författare)
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Health related quality of life in stem cell transplantation: clinical and psychometric validation of the questionnaire module, High Dose Chemotherapy (HDC-19).
- 2008
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Ingår i: Acta oncologica (Stockholm, Sweden). - : Informa UK Limited. - 0284-186X .- 1651-226X. ; 47:2, s. 275-85
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Tidskriftsartikel (refereegranskat)abstract
- The objective of this study was to assess the psychometric properties of the HDC-19, a module questionnaire for assessing symptoms and problems of patients undergoing stem cell transplantation (SCT) following high-dose chemotherapy (HDC). It consists of 19 questions and was developed for use in conjunction with EORTC QLQ-C30. Psychometric evaluations were performed according to guidelines recommended by the EORTC. The principal component analyses suggested that nine of the HDC-19 items could be reduced to four components (sexual functioning, future health perspectives, skin irritations and joint/muscle pain). Multitrait scaling analysis showed that most item-scale correlation coefficients met the standards of convergent (>0.40) and discriminant validity. Test-retest reliability coefficients between assessments at inclusion and admission were high, indicating that perceived health status remained virtually unchanged during this period. As expected, correlations between admission and one month after transplantation were considerably lower. The internal consistency of the multi-item scales was also satisfactory, (Cronbach's alpha 0.59-0.87). Overall, the known-groups comparisons showed smaller differences between designated groups than expected. As expected, changes in the HDC-19 mirrored changes in QLQ-C30 'global quality of life'. These results lend support to the validity of the HDC-19 as a supplementary questionnaire for assessing specific health-related quality of life (HRQOL) issues relevant for SCT patients.
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- Andersson, Inger, 1964, et al.
(författare)
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Patients' perception of health-related quality of life during the first year after autologous and allogeneic stem cell transplantation.
- 2011
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Ingår i: European journal of cancer care. - : Hindawi Limited. - 1365-2354 .- 0961-5423. ; 20:3, s. 368-379
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Tidskriftsartikel (refereegranskat)abstract
- Little attention has been paid to examine health-related quality of life (HRQoL) the first year post-transplant, despite that this period is crucial for returning to normal life and functioning and to prevent delayed psychosocial adjustment. The purpose of the present study was to describe HRQoL after autologous versus allogeneic stem cell transplantations during the first year post-transplant. The allogeneic group was further divided into two groups: allogeneic stem cell transplantation after reduced intensive conditioning and allogeneic stem cell transplantation after myeloablative conditioning. All together 202 patients were enrolled in the study. HRQoL was assessed by the European Organization for Research and Treatment of Cancer Quality of Life Questionnaire (EORTC QLQ-C30) and the treatment-specific module High-Dose Chemotherapy (HDC-19). The questionnaires were filled out at six occasions (from inclusion to 12 months after transplantation). The reduced intensive conditioning group seemed to recover in the same way as the autologous group and these two groups were closer in their scoring compared with the myeloablative conditioning group. One month after the transplantation there were no significant differences in change scores between the autologous and reduced intensive conditioning group, and 1 year after the transplantation levels of symptoms and functioning were back to baseline or better. The myeloablative conditioning group, who perceived more symptoms and lower levels of functioning during the whole period, was still impaired in 10 out of 29 scales 1 year after the transplantation and no significant improvements compared with baseline were observed for this group.
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- Andersson, Inger S., et al.
(författare)
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Perceptions of nursing care quality, in acute hospital settings measured by the Karen instruments
- 2013
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Ingår i: Journal of Nursing Management. - : Blackwell Publishing. - 0966-0429 .- 1365-2834. ; 21:1, s. 87-93
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Tidskriftsartikel (refereegranskat)abstract
- Aims The objectives of this study were to measure the quality of nursing care from the perspectives of patients and personnel and to compare these perspectives. Background The perception of quality in nursing care is affected by patient needs and it is common that patients and personnel disagree on the nature of the quality. Thus, it is important to measure the quality from both perspectives. Method A total of 95 patients and 120 personnel from surgical and medical wards at a hospital in Sweden participated. The Karen instruments were used for data collection. A scale index was used for comparison of the perspectives. Results The patients and personnel were satisfied with the quality of care and there were no obvious differences in the total index. The different subscales indicated areas of lower care quality in need of improvement. Conclusion The quality of the care seemed to be satisfactory from the perspectives of both the patients and the personal. Further analysis from the subscale or a variable level is needed to define areas of lower care quality. Implications for Nursing Management Measurements have to be carried out continuously to guarantee care quality over time, as a result of organisational changes and financial cutbacks.
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- Andersson, Inger, et al.
(författare)
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Structure and function of Rubisco
- 2008
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Ingår i: Plant physiology and biochemistry (Paris). - : Elsevier BV. - 0981-9428 .- 1873-2690. ; 46:3, s. 275-291
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Tidskriftsartikel (refereegranskat)abstract
- Ribulose-1,5-bisphosphate carboxylase/oxygenase (Rubisco) is the major enzyme assimilating CO2 into the biosphere. At the same time Rubisco is an extremely inefficient catalyst and its carboxylase activity is compromised by an opposing oxygenase activity involving atmospheric O2. The shortcomings of Rubisco have implications for crop yield, nitrogen and water usage, and for the global carbon cycle. Numerous high-resolution crystal structures of different forms of Rubisco are now available, including structures of mutant enzymes. This review uses the information provided in these structures in a structure-based sequence alignment and discusses Rubisco function in the context of structural variations at all levels – amino acid sequence, fold, tertiary and quaternary structure – with an evolutionary perspective and an emphasis on the structural features of the enzyme that may determine its function as a carboxylase.
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