| 1. |
- Gillman, Anna, et al.
(författare)
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Oseltamivir-Resistant Influenza A (H1N1) Virus Strain with an H274Y Mutation in Neuraminidase Persists without Drug Pressure in Infected Mallards
- 2015
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Ingår i: Applied and Environmental Microbiology. - : American Society for Microbiology. - 0099-2240 .- 1098-5336. ; 81:7, s. 2378-2383
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Tidskriftsartikel (refereegranskat)abstract
- Influenza A virus (IAV) has its natural reservoir in wild waterfowl and emerging human IAVs often contain gene segments from avian viruses. The active drug metabolite of oseltamivir (oseltamivir carboxylate (OC)), stockpiled as Tamiflu® for influenza pandemic preparedness, is not removed by conventional sewage treatment and has been detected in river water. There, it may there exert evolutionary pressure on avian IAV in waterfowl, resulting in development of resistant viral variants. A resistant avian IAV can circulate among wild birds only if resistance does not restrict viral fitness and if the resistant virus can persist without continuous drug pressure. In this in vivo Mallard (Anas platyrhynchos) study we tested if an OC-resistant avian IAV strain (A(H1N1)/NA-H274Y) could retain resistance while drug pressure was gradually removed. Successively infected Mallards were exposed to decreasing levels of OC, and fecal samples were analyzed for neuraminidase sequence and phenotypic resistance. No reversion to wild-type virus was observed during the experiment, which included 17 days of viral transmission in 10 ducks exposed to OC concentrations below resistance induction levels. We conclude that resistance in avian IAV, induced by OC exposure of the natural host, can persist in absence of the drug. Thus, there is a risk that human pathogenic IAVs that evolve from IAVs circulating among wild birds may contain resistance mutations. An oseltamivir resistant pandemic IAV would be a substantial public health threat. Therefore, our observations underscore the need for prudent oseltamivir use, upgraded sewage treatment and resistance surveillance of IAV in wild birds.
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| 2. |
- Bodin Danielsson, Christina, et al.
(författare)
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The relation between office type and workplace conflict : A gender and noise perspective
- 2015
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Ingår i: Journal of Environmental Psychology. - : Elsevier BV. - 0272-4944 .- 1522-9610. ; 42, s. 161-171
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Tidskriftsartikel (refereegranskat)abstract
- This exploratory study aimed to investigate the impact of the office design on workplace conflicts, with a special attention to noise in the office. A gender perspective was applied. The sample consisted of 5229 employees from the Swedish Longitudinal Occupational Survey of Health 2010 (SLOSH), working in different office types. In the multivariate analysis office type was used as the explanatory variable with adjustments for age, supervisory position and labour market sector. Analysis stratified for gender was used. Among women a significant impact of office type per se on workplace conflicts was found, but not among men. For women several office types differed significantly from the cell-office with regard to prevalence of conflicts during the past two years, but for men only the combi-office differed from the cell-office. Noise had an impact on workplace conflicts, but is not the only explanatory factor since the effect of office type remained also after adjustment for noise in multivariate analyses. Other environmental factors inherent in the office type might thus explain the occurrence of conflicts.
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| 3. |
- Järhult, Josef D., et al.
(författare)
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Environmental levels of the antiviral oseltamivir induce development of resistance mutation H274Y in influenza A/H1N1 virus in mallards
- 2011
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Ingår i: PLOS ONE. - San Francisco, CA : Public Library of Science (PLoS). - 1932-6203. ; 6:9
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Tidskriftsartikel (refereegranskat)abstract
- Oseltamivir (Tamiflu®) is the most widely used drug against influenza infections and is extensively stockpiled worldwide as part of pandemic preparedness plans. However, resistance is a growing problem and in 2008-2009, seasonal human influenza A/H1N1 virus strains in most parts of the world carried the mutation H274Y in the neuraminidase gene which causes resistance to the drug. The active metabolite of oseltamivir, oseltamivir carboxylate (OC), is poorly degraded in sewage treatment plants and surface water and has been detected in aquatic environments where the natural influenza reservoir, dabbling ducks, can be exposed to the substance. To assess if resistance can develop under these circumstances, we infected mallards with influenza A/H1N1 virus and exposed the birds to 80 ng/L, 1 µg/L and 80 µg/L of OC through their sole water source. By sequencing the neuraminidase gene from fecal samples, we found that H274Y occurred at 1 µg/L of OC and rapidly dominated the viral population at 80 µg/L. IC₅₀ for OC was increased from 2-4 nM in wild-type viruses to 400-700 nM in H274Y mutants as measured by a neuraminidase inhibition assay. This is consistent with the decrease in sensitivity to OC that has been noted among human clinical isolates carrying H274Y. Environmental OC levels have been measured to 58-293 ng/L during seasonal outbreaks and are expected to reach µg/L-levels during pandemics. Thus, resistance could be induced in influenza viruses circulating among wild ducks. As influenza viruses can cross species barriers, oseltamivir resistance could spread to human-adapted strains with pandemic potential disabling oseltamivir, a cornerstone in pandemic preparedness planning. We propose surveillance in wild birds as a measure to understand the resistance situation in nature and to monitor it over time. Strategies to lower environmental levels of OC include improved sewage treatment and, more importantly, a prudent use of antivirals.
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| 4. |
- Callaghan, Terry, et al.
(författare)
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Multi-Decadal Changes in Tundra Environments and Ecosystems : Synthesis of the International Polar Year-Back to the Future Project (IPY-BTF)
- 2011
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Ingår i: Ambio. - : Springer Science and Business Media LLC. - 0044-7447 .- 1654-7209. ; 40:6, s. 705-716
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Tidskriftsartikel (refereegranskat)abstract
- Understanding the responses of tundra systemsto global change has global implications. Most tundraregions lack sustained environmental monitoring and oneof the only ways to document multi-decadal change is toresample historic research sites. The International PolarYear (IPY) provided a unique opportunity for such researchthrough the Back to the Future (BTF) project (IPY project#512). This article synthesizes the results from 13 paperswithin this Ambio Special Issue. Abiotic changes includeglacial recession in the Altai Mountains, Russia; increasedsnow depth and hardness, permafrost warming, andincreased growing season length in sub-arctic Sweden;drying of ponds in Greenland; increased nutrient availabilityin Alaskan tundra ponds, and warming at mostlocations studied. Biotic changes ranged from relativelyminor plant community change at two sites in Greenland tomoderate change in the Yukon, and to dramatic increasesin shrub and tree density on Herschel Island, and in subarcticSweden. The population of geese tripled at one sitein northeast Greenland where biomass in non-grazed plotsdoubled. A model parameterized using results from a BTFstudy forecasts substantial declines in all snowbeds andincreases in shrub tundra on Niwot Ridge, Colorado overthe next century. In general, results support and provideimproved capacities for validating experimental manipulation,remote sensing, and modeling studies.
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| 5. |
- Jourdain, Elsa, et al.
(författare)
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Influenza Virus in a Natural Host, the Mallard : Experimental Infection Data
- 2010
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Ingår i: PLOS ONE. - : Public Library of Science (PLoS). - 1932-6203. ; 5:1
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Tidskriftsartikel (refereegranskat)abstract
- Wild waterfowl, particularly dabbling ducks such as mallards (Anas platyrhynchos), are considered the main reservoir of low-pathogenic avian influenza viruses (LPAIVs). They carry viruses that may evolve and become highly pathogenic for poultry or zoonotic. Understanding the ecology of LPAIVs in these natural hosts is therefore essential. We assessed the clinical response, viral shedding and antibody production of juvenile mallards after intra-esophageal inoculation of two LPAIV subtypes previously isolated from wild congeners. Six ducks, equipped with data loggers that continually monitored body temperature, heart rate and activity, were successively inoculated with an H7N7 LPAI isolate (day 0), the same H7N7 isolate again (day 21) and an H5N2 LPAI isolate (day 35). After the first H7N7 inoculation, the ducks remained alert with no modification of heart rate or activity. However, body temperature transiently increased in four individuals, suggesting that LPAIV strains may have minor clinical effects on their natural hosts. The excretion patterns observed after both reinoculations differed strongly from those observed after the primary H7N7 inoculation, suggesting that not only homosubtypic but also heterosubtypic immunity exist. Our study suggests that LPAI infection has minor clinically measurable effects on mallards and that mallard ducks are able to mount immunological responses protective against heterologous infections. Because the transmission dynamics of LPAIVs in wild populations is greatly influenced by individual susceptibility and herd immunity, these findings are of high importance. Our study also shows the relevance of using telemetry to monitor disease in animals.
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| 6. |
- Thurang, Anna, 1968-, et al.
(författare)
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Womens experience of caring when in treatment for alcohol dependency
- 2010
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Ingår i: Scandinavian Journal of Caring Sciences. - : Wiley. - 0283-9318 .- 1471-6712. ; 24:4, s. 700-706
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Tidskriftsartikel (refereegranskat)abstract
- Despite the fact of increased levels of alcohol dependency in women and gender differences in how the disease affects men and women, the research on alcohol dependency continues to have a dominating perspective on men. The meaning of the phenomenon of caring in formal care for women with alcohol dependency is not well known. Thus, formal caregivers may find it problematic to know what is caring for women with alcohol dependency. The aim of the study was to illuminate the meaning of caring in formal care for women with alcohol dependency, as narrated by the women. The study was performed using a phenomenological-hermeneutic method. Data were collected in ten in-depth interviews with alcohol-dependent women. The themes presented are availability, being a patient and being a learner. The findings reveal that the women with alcohol dependency receiving a mandate from formal care, experience the relation between them and their caregiver as a mutual transformation. Within the mutual transformation, the participants experienced being respected as a responsible human being which renders possibilities for the women with alcohol dependency to continue in formal care even when the struggle against the disease became hard. Continual meetings with the caregiver allowed the women to gain structure in their daily life as well as allowing the women and their caregivers to develop mutual transformation, which both relieved the women’s suffering and increased their experience of being involved in the care process
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| 7. |
- Beck, Ingela, et al.
(författare)
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Translation and cultural adaptation of the Integrated Palliative care Outcome Scale including cognitive interviewing with patients and staff
- 2017
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Ingår i: BMC Palliative Care. - : Springer Science and Business Media LLC. - 1472-684X. ; 16:1
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Tidskriftsartikel (refereegranskat)abstract
- BACKGROUND: To expand our clinical and scientific knowledge about holistic outcomes within palliative care, there is a need for agreed-upon patient-reported outcome measures. These patient-reported outcome measures then require translation and cultural adaptation, either from country-specific languages to English, or the other way around. The aim of this study was to translate and cross-culturally adapt the Integrated Palliative care Outcome Scale (IPOS) to the Swedish care context.METHODS: Swedish versions of IPOS Patient and IPOS Staff were developed and culturally adapted using recommended guidelines including cognitive interviews with patients (n = 13) and staff (n = 15) from different care contexts including general and specialised palliative care.RESULTS: The comprehension and judgement difficulties identified in the pre-final patient and staff versions were successfully solved during the cognitive interviewing process. IPOS was well accepted by both patients and staff, none of the questions were experienced as inappropriate, and all questions were judged important.CONCLUSIONS: In this study, we translated and culturally adapted the patient and staff versions of IPOS, and demonstrated face and content validity and acceptability of the scale through cognitive interviewing with patients and staff within residential care facility, surgical and specialised palliative home care units. Cognitive interviewing in parallel with patients and staff in rounds, with tentative analysis in between, was a suitable method for identifying and solving challenges with comprehension and evaluation in the pre-final version of IPOS. The Swedish IPOS is now available for use in a variety of clinical care settings.
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| 8. |
- Lind, Susanne, et al.
(författare)
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The integrated palliative care outcome scale for patients with palliative care needs : Factors related to and experiences of the use in acute care settings
- 2019
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Ingår i: Palliative & Supportive Care. - 1478-9515 .- 1478-9523. ; 17:5, s. 561-568
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Tidskriftsartikel (refereegranskat)abstract
- ObjectiveImplementation of patient-reported outcome measures for patients with palliative care needs is characterized by both enablers and barriers. The ways in which healthcare professionals experience the use of assessment tools is important. Our aims were to explore factors contributing to or hindering patients with palliative care needs in assessing their symptoms with the Integrated Palliative Care Outcome Scale (IPOS) and to explore healthcare professionals' experiences of the use of IPOS in acute care settings.MethodData were collected as a part of the evaluation of the feasibility of an implementation strategy for introducing IPOS. Data from three participating acute care units were included. We used descriptive and analytical statistics; a qualitative content analysis was also performed.ResultA total of 309 patients were eligible to be offered assessment of symptoms with IPOS. Of these 69 (22%) had completed IPOS. A significant positive association was found between healthcare professionals' participation in training sessions and completed IPOS. The experiences of IPOS were split into two categories: "IPOS acting as a facilitator" and "barriers to the use of IPOS." The use of IPOS was described as contributing to person-centered care of patients with palliative care needs and inspiration to improved routines. Healthcare professionals' feelings of uncertainty about how to approach severely ill patients and their family members appear to have hindered their use of IPOS.Significance of resultsWe found an association between healthcare professionals' participation in training sessions and patients who completed IPOS, indicating the need for a high degree of attendance at the training to achieve successful implementation. The healthcare professionals expressed feelings of insecurity concerning the use of IPOS indicating a need for further education and clinical support in its use of IPOS. Nevertheless, use of IPOS was considered to contribute to improved care of patients with palliative care needs.
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| 9. |
- Collin, Sven-Olof Yrjö, 1957-, et al.
(författare)
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Mechanisms of corporate governance going international : Testing its performance effects in the Swedish economy, 2004
- 2013
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Ingår i: Baltic Journal of Management. - : Emerald Group Publishing Limited. - 1746-5265 .- 1746-5273. ; 8:1, s. 79-101
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Tidskriftsartikel (refereegranskat)abstract
- Purpose – The purpose of this paper is to investigate how internationalisation of corporate governance mechanisms influences firm performance.Design/methodology/approach – The paper is based on the data collected from annual reports of the year 2004, from all 239 Swedish corporations listed on the Stockholm Stock Exchange, on which a quantitative analysis was performed.Findings – The findings suggest that internationalisation of corporate governance does not have a straightforward influence on firm performance, which can be due to: the fact that mechanisms with governance functions have several functions, of which governance is but one; and the fact that governance mechanisms cannot be analyzed in isolation, since they are included in a coherent corporate governance strategy.Originality/value – The paper is the first to investigate the corporate governance mechanisms' internationalisation issue.
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| 10. |
- Gillman, Anna, et al.
(författare)
-
Oseltamivir-Resistant Influenza A (H1N1) Virus Strain with an H274Y Mutation in Neuraminidase Persists without Drug Pressure in Infected Mallards
- 2015
-
Ingår i: Applied and Environmental Microbiology. - : American Society for Microbiology. - 0099-2240 .- 1098-5336. ; 81:7, s. 2378-2383
-
Tidskriftsartikel (refereegranskat)abstract
- Influenza A virus (IAV) has its natural reservoir in wild waterfowl, and emerging human IAVs often contain gene segments from avian viruses. The active drug metabolite of oseltamivir (oseltamivir carboxylate [OC]), stockpiled as Tamiflu for influenza pandemic preparedness, is not removed by conventional sewage treatment and has been detected in river water. There, it may exert evolutionary pressure on avian IAV in waterfowl, resulting in the development of resistant viral variants. A resistant avian IAV can circulate among wild birds only if resistance does not restrict viral fitness and if the resistant virus can persist without continuous drug pressure. In this in vivo mallard (Anas platyrhynchos) study, we tested whether an OC-resistant avian IAV (H1N1) strain with an H274Y mutation in the neuraminidase (NA-H274Y) could retain resistance while drug pressure was gradually removed. Successively infected mallards were exposed to decreasing levels of OC, and fecal samples were analyzed for the neuraminidase sequence and phenotypic resistance. No reversion to wild-type virus was observed during the experiment, which included 17 days of viral transmission among 10 ducks exposed to OC concentrations below resistance induction levels. We conclude that resistance in avian IAV that is induced by exposure of the natural host to OC can persist in the absence of the drug. Thus, there is a risk that human-pathogenic IAVs that evolve from IAVs circulating among wild birds may contain resistance mutations. An oseltamivir-resistant pandemic IAV would pose a substantial public health threat. Therefore, our observations underscore the need for prudent oseltamivir use, upgraded sewage treatment, and surveillance for resistant IAVs in wild birds.
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