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| 2. |
- Johansson, Henrik J., et al.
(författare)
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Extracellular nanovesicles released from the commensal yeast Malassezia sympodialis are enriched in allergens and interact with cells in human skin
- 2018
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Ingår i: Scientific Reports. - : NATURE PUBLISHING GROUP. - 2045-2322. ; 8
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Tidskriftsartikel (refereegranskat)abstract
- Malassezia sympodialis is a dominant commensal fungi in the human skin mycobiome but is also associated with common skin disorders including atopic eczema (AE). M. sympodialis releases extracellular vesicles, designated MalaEx, which are carriers of small RNAs and allergens, and they can induce inflammatory cytokine responses. Here we explored how MalaEx are involved in hostmicrobe interactions by comparing protein content of MalaEx with that of the parental yeast cells, and by investigating interactions of MalaEx with cells in the skin. Cryo-electron tomography revealed a heterogeneous population of MalaEx. iTRAQ based quantitative proteomics identified in total 2439 proteins in all replicates of which 110 were enriched in MalaEx compared to the yeast cells. Among the MalaEx enriched proteins were two of the M. sympodialis allergens, Mala s 1 and s 7. Functional experiments indicated an active binding and internalization of MalaEx into human keratinocytes and monocytes, and MalaEx were found in close proximity of the nuclei using super-resolution fluorescence 3D-SIM imaging. Our results provides new insights into host-microbe interactions, supporting that MalaEx may have a role in the sensitization and maintenance of inflammation in AE by containing enriched amounts of allergens and with their ability to interact with skin cells.
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| 3. |
- Johansson, Peter, et al.
(författare)
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Increased Risk of Hip Fracture in Patients with Lymphoma, a Swedish Population Study of 37,236 Lymphoma Patients.
- 2020
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Ingår i: Calcified tissue international. - : Springer Science and Business Media LLC. - 1432-0827 .- 0171-967X. ; 106, s. 591-598
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Tidskriftsartikel (refereegranskat)abstract
- Increased bone loss has been noted in lymphoma patients; however, the incidence of hip fracture is not known. The aim of our study was to explore the risk for hip fracture in patients with lymphoma compared with the entire Swedish population. The risk of hip fracture was determined in a retrospective population cohort study of adult Swedish lymphoma patients (n=37,236), diagnosed 1995-2015 and compared with the entire Swedish population during the same period. The incidence of hip fracture in lymphoma patients was higher in women than in men, increased by age, and decreased by calendar year as also demonstrated in the total population. 2.2% of the men and 4.7% of women with lymphoma sustained a hip fracture. For the total group of females, the hazard ratio (HR) was 1.19 (95% CI 1.11-1.28) and for men, the hazard ratio was 1.06 (95% CI 0.97-1.17) compared with the Swedish population. The HR for hip fracture (2016) was 2.80 (95% CI 1.20-6.53), 2.04 (95% CI 1.30-3.20), 1.56 (95% CI 1.21-2.01), 1.08 (95% CI 0.89-1.30), and 1.07 (95% CI 0.92-1.25) in females aged 40, 50, 60, 70, and 80years, respectively. Corresponding figures for men were not significant in 2016. Unmarried men with lymphoma had a two times higher risk for hip fracture (HR 2.02 95% CI 1.63-2.50) compared with married men. Patients with lymphoma had an increased risk of hip fracture, especially younger women and unmarried men. The incidence of hip fracture is decreased by calendar year in the lymphoma patients and the entire Swedish population.
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| 4. |
- Johansson, Yvonne A., 1956-
(författare)
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Delirium hos äldre patienter som vårdas på sjukhus : identifiering av symtom, tecken och riskfaktorer samt journalförda vårdåtgärder
- 2022
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Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
- I samband med sjukhusvård kan äldre patienter riskera försämrad hälsa, inklusive delirium. Delirium, som är vanligt hos äldre patienter på sjukhus, är ett akut och allvarligt tillstånd med svåra konsekvenser för såväl patienten som för närstående, vårdpersonal och hälso- och sjukvård. Det är viktigt att delirium förebyggs, identifieras och behandlas. Forskning visar dock på brister i vården, vilket kan påverka patienternas hälsa och välbefinnande negativt. Det övergripande syftet med avhandlingen var att identifiera och beskriva symtom, tecken, riskfaktorer och vårdåtgärder vid delirium hos äldre patienter som vårdas på sjukhus samt att utvärdera tillämpbarheten av ett bedömningsinstrument för att identifiera delirium. Alla deltagande patienter var 65 år och äldre och rekryterades från ett länssjukhus (I-IV) och ett universitetssjukhus (III, IV). Dessutom ingick de bedömare som bedömt delirium med bedömningsinstrumentet 4AT i delarbete IV. Delarbetena bestod av en kvantitativ subgruppsanalys (n=25) av en punktprevalensstudie (n=210), en retrospektiv journalgranskning (n=78) med kvalitativ analys och två tvärsnittsstudier baserade på samma urval (n=200) med kvantitativa (III, IV) och kvalitativa analyser (IV). Data samlades in genom strukturerade intervjuer, validerade instrument, patientjournaler, frågeformulär och en öppen intervjufråga.Patienterna rapporterade svåra och besvärande symtom vilka hade journalförts i begränsad omfattning (14%). Även kognitiv funktionsnedsättning och patienternas beskrivningar av sitt välbefinnande hade journalförts i liten utsträckning. Patienternas tecken på delirium ledde till nedsatt förmåga att såväl delta i sin egen vård som att undvika skada. Vårdpersonalen svarade delvis på patienternas tecken på delirium då åtgärderna kunde vara både anpassade, bristfälliga och utöver vanlig vård. Skörhet var den starkaste riskfaktorn för delirium. Andelen patienter med delirium ökade med svårighetsgraden av skörhet. Den svenska versionen av bedömningsinstrumentet 4AT för att identifiera delirium hade diagnostisk precision och klinisk användbarhet med hög interbedömarreliabilitet. Bedömningsinstrumentet 4AT tolererades väl av patienterna, var lätt att använda och tog några minuter att genomföra. Detta innebär att det nu finns ett enkelt bedömningsinstrument för delirium på svenska som kan användas för att bedöma delirium hos äldre patienter som vårdas på sjukhus.Endast en mindre del av den studerade vården kan ses som personcentrerad och patientsäker. Struktur, systematik och ett helhetsperspektiv tycktes saknas, liksom ett personcentrerat förhållnings- och arbetssätt. För att minska incidensen av delirium, lidande och kostnader behöver vården förbättras. Det finns behov av att öka kunskapen om delirium och att se delirium som en vårdskada inom all vård. Vidare finns behov av att utveckla vården genom att tydligt integrera ett personcentrerat och patientsäkert förhållnings- och arbetssätt för att nå en helhetssyn på patienten. Målet är att främja hälsa och välbefinnande genom att förebygga delirium. För att möjliggöra identifiering av individuella vårdbehov är det en förutsättning att etablera en tillitsfull vårdrelation med den äldre patienten, där patientens perspektiv tillvaratas. Individuella vårdbehov behöver identifieras strukturerat och systematiskt genom bedömning med bedömningsinstrument av symtom, tecken, välbefinnande, delirium och riskfaktorer för delirium innefattande skörhet samt kognitiv funktionsnedsättning. Detta möjliggör individuellt anpassade vårdåtgärder.Ett individuellt anpassat omhändertagande som överensstämmer med ett integrerat personcentrerat och patientsäkert förhållnings- och arbetssätt skulle kunna bidra till att minska incidensen av delirium vilket kan skapa positiva effekter för såväl patienter som för vårdpersonal och hälso- och sjukvård.
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| 5. |
- Johansson, Yvonne A, 1956-, et al.
(författare)
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Diagnostic accuracy and clinical applicability of the Swedish version of the 4AT assessment test for delirium detection, in a mixed patient population and setting
- 2021
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Ingår i: BMC Geriatrics. - : Springer Science and Business Media LLC. - 1471-2318. ; 21:1
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Tidskriftsartikel (refereegranskat)abstract
- Background Delirium is common in older hospitalized patients. It has serious consequences e.g., poor health outcomes, mortality and increased costs. Despite that, many cases are undetected. Early detection of delirium is important in improving outcomes and use of assessment tools improves detection rates. The 4AT is a brief screening tool for delirium detection, which has not previously been translated into Swedish. The study aim was to evaluate diagnostic accuracy and clinical applicability of a Swedish version of the screening tool 4AT for delirium detection. Method This diagnostic test accuracy study used a quantitative and a qualitative approach and evaluated the patients' and the health care professionals' experiences of the tool. Study included 200 patients >= 65 years from a university hospital and a county hospital in two Swedish regions. Medical specialties were geriatric stroke/neurology, geriatric multimorbidity, severe cognitive impairment, orthopaedic, and urology. The translated 4AT was tested against the reference standard DSM-IV-TR criteria, based on the Organic Brain Syndrome scale and patient records. The 4AT was assessed simultaneously and independently by two assessors. Additionally, data was collected through patient record reviews, and questions about applicability to the patients (n = 200) and the assessors (n = 37). Statistical analyses, and qualitative content analyses were conducted. Results By reference standard 18% had delirium, and by 4AT 19%. The overall percent agreement was 88%, AUROC 0.808, sensitivity 0.70 (95% CI 0.51-0.84) and specificity 0.92 (95% CI 0.87-0.96). In the ward for severe cognitive impairment (n = 63) the 4AT was less sensitive and less specific. In the other wards (n = 132) sensitivity was 0.77 (95% CI 0.50-0.93), specificity 0.93 (95% CI 0.87-0.97), and AUROC 0.848. Interrater reliability (Kappa) was 0.918, p = < 0.001 (n = 144). The 4AT was well tolerated by patients, easy to use for health care professionals, and took a few minutes to conduct. Conclusion The Swedish version of 4AT is an accurate and applicable tool to use in clinical practice for detecting delirium in hospitalized patients across different medical specialities, and to use by different professionals and levels of seniority. To improve patient outcomes, we recommend the 4AT to be incorporated in clinical practice in health care settings in Sweden.
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| 7. |
- Kristjansdottir, Hallgerdur Lind, et al.
(författare)
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High Plasma Erythropoietin Predicts Incident Fractures in Elderly Men with Normal Renal Function : The MrOS Sweden Cohort
- 2020
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Ingår i: Journal of Bone and Mineral Research. - : WILEY. - 0884-0431 .- 1523-4681. ; 35:2, s. 298-305
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Tidskriftsartikel (refereegranskat)abstract
- Preclinical studies on the role of erythropoietin (EPO) in bone metabolism are contradictory. Regeneration models indicate an anabolic effect on bone healing, whereas models on physiologic bone remodeling indicate a catabolic effect on bone mass. No human studies on EPO and fracture risk are available. It is known that fibroblast growth factor 23 (FGF23) affects bone mineralization and that serum concentration of FGF23 is higher in men with decreased estimated glomerular filtration rate (eGFR). Recently, a direct association between EPO and FGF23 has been shown. We have explored the potential association between EPO and bone mineral density (BMD), fracture risk, and FGF23 in humans. Plasma levels of EPO were analyzed in 999 men (aged 69 to 81 years), participating in the Gothenburg part of the population-based Osteoporotic Fractures in Men (MrOS) study, MrOS Sweden. The mean +/- SD EPO was 11.5 +/- 9.0 IU/L. Results were stratified by eGFR 60 mL/min. For men with eGFR >= 60 mL/min (n = 728), EPO was associated with age (r = 0.13, p < 0.001), total hip BMD (r = 0.14, p < 0.001), intact (i)FGF23 (r = 0.11, p = 0.004), and osteocalcin (r = -0.09, p = 0.022). The association between total hip BMD and EPO was independent of age, body mass index (BMI), iFGF23, and hemoglobin (beta = 0.019, p < 0.001). During the 10-year follow-up, 164 men had an X-ray-verified fracture, including 117 major osteoporotic fractures (MOF), 39 hip fractures, and 64 vertebral fractures. High EPO was associated with higher risk for incident fractures (hazard ratio [HR] = 1.43 per tertile EPO, 95% confidence interval [CI] 1.35-1.63), MOF (HR = 1.40 per tertile EPO, 95% CI 1.08-1.82), and vertebral fractures (HR = 1.42 per tertile EPO, 95% CI 1.00-2.01) in a fully adjusted Cox regression model. In men with eGFR<60 mL/min, no association was found between EPO and BMD or fracture risk. We here demonstrate that high levels of EPO are associated with increased fracture risk and increased BMD in elderly men with normal renal function.
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| 8. |
- Ahlin, Catharina, et al.
(författare)
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Assessing nursing students’ knowledge and skills in performing venepuncture and inserting peripheral venous catheters
- 2017
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Ingår i: Nurse Education in Practice. - : Elsevier BV. - 1471-5953 .- 1873-5223. ; 23, s. 8-14
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Tidskriftsartikel (refereegranskat)abstract
- Venepuncture and the insertion of peripheral venous catheters are common tasks in health care, and training in these procedures is included in nursing programmes. Evidence of nursing students’ knowledge and skills in these procedures is limited. The main aim of this study was to assess nursing students’ knowledge and skills when performing venepuncture and inserting peripheral venous catheters. Potential associations between level of knowledge and skills, self-training, self-efficacy, and demographic characteristics were also investigated. The assessment was performed by lecturers at a university college in Sweden using the two previously tested instruments "Assess Venepuncture"€ and "Assess Peripheral Venous Catheter Insertion". Between 81% and 100% of steps were carried out correctly by the students. The step with the highest rating was "€œUses gloves", and lowest rating was "€˜Informs the patients about the possibility of obtaining local anaesthesia"€™. Significant correlations between degree of self-training and correct performance were found in the group of students who registered their self-training. No associations between demographic characteristics and correct performances were found. Assessing that students have achieved adequate levels of knowledge and skills in these procedures at different levels of the nursing education is of importance to prevent complications and support patient safety.
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| 9. |
- Ahlin, Catharina, et al.
(författare)
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Development of instruments for assessment of knowledge and skills in performing venepuncture and inserting peripheral venous catheters
- 2013
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Ingår i: Journal of Vascular Access. - : SAGE Publications. - 1129-7298 .- 1724-6032. ; 14:4, s. 364-372
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Tidskriftsartikel (refereegranskat)abstract
- Purpose: Performing venepuncture is one of the most routinely performed invasive procedures in nursing care. The aim of this study was to develop instruments for the assessment of nursing students’ knowledge and skills when performing venepuncture and inserting a peripheral venous catheter.
Methods: Two instruments were developed using the following steps. 1) Assessment items of importance for the procedures (venepuncture 48 items and peripheral venous catheter 51 items) were collected from focus groups including nurses, lecturers and patients. 2) The number of items was reduced using a method based on the Delphi method. Experts (n=51) reviewed the instruments in two rounds. The revised versions included 31 items for venepuncture and 33 items for peripheral venous catheter insertion. 3) Usability tests were conducted by nurses who tested the instruments to confirm that items were possible to assess. 4) Inter-rater reliability was assessed by twelve lecturers who in pairs, but independently of each other, used the instruments to assess 50 nursing students.
Results: Proportion of agreement and Cohen’s kappa coefficient were calculated for each item to determine inter-rater reliability. Among the tested items for both instruments, the median proportion of agreement was 1 (range 0.66-1) and the median kappa was 0.52 (range 0.22-1).
Conclusions: The instruments developed for assessing nursing students’ knowledge and skills of venepuncture and peripheral venous catheter insertion showed satisfactory inter-rater reliability.
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