| 1. |
- Protudjer, Jennifer L. P., et al.
(author)
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Household Costs Associated with Objectively Diagnosed Allergy to Staple Foods in Children and Adolescents
- 2015
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In: Journal of Allergy and Clinical Immunology-In Practice. - : Elsevier BV. - 2213-2198 .- 2213-2201. ; 3:1, s. 68-75
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Journal article (peer-reviewed)abstract
- BACKGROUND: We previously reported that indirect and intangible costs burden households with a food allergic adult. We now extend our investigation to households with food allergic children and adolescents. OBJECTIVE: The objective of this study was to estimate direct, indirect, and intangible costs of food allergy in households with a child and/or adolescent with objectively diagnosed allergy to staple foods (cow's milk, hen's egg, and/or wheat), and to compare these costs with age-and sex-matched controls. METHODS: Direct and indirect cost parent-reported data collected via the Food Allergy Socio-Economic Questionnaire of 84 children (0-12 years) and 60 adolescents (13-17 years) with objectively diagnosed allergy to staple foods ("cases") and age- and sex-matched controls (n = 94 children; n = 56 adolescents) were compared. Annual household costs were calculated. Total household costs included direct plus indirect costs. Intangible costs included parent-reported health of their child and/or adolescent, standard of living, and perceptions of well-being. RESULTS: Amongst cases, total household costs were higher by (sic)3961 for children and (sic)4792 for adolescents versus controls (P < .05), and were driven by direct (eg, medications) and indirect (eg, time with health care professionals) costs. For children only, a history of anaphylaxis was associated with higher direct costs than no anaphylaxis ((sic)13,016 vs (sic)10,044, P < .05). Intangible costs (eg, parent-reported health of a child and/or adolescent) were significantly impacted amongst cases versus controls (P < .01). CONCLUSION: Households with a child and/or adolescent with objectively diagnosed allergy to staple foods have higher total household costs than controls. Direct and indirect costs were significantly higher for cases versus controls amongst children only. Amongst both age groups, such allergy adversely impacted intangible costs. (C) 2015 The Authors. Published by Elsevier Inc. on behalf of the American Academy of Allergy, Asthma & Immunology.
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| 2. |
- Protudjer, Jennifer Lisa Penner, et al.
(author)
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Impaired health-related quality of life in adolescents with allergy to staple foods
- 2016
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In: Clinical and Translational Allergy. - : Wiley. - 2045-7022. ; 6
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Journal article (peer-reviewed)abstract
- Background: Cow's milk, hen's egg and wheat are staple foods in a typical western diet. Despite the ubiquity of these foods, the impact of staple food allergy on health-related quality of life (HRQL) amongst adolescents is incompletely understood. The aims of this study were to make use of the Swedish version of EuroPrevall's disease-specific food allergy quality of life questionnaire-teenager form (FAQLQ-TF) and to investigate the association between objectively-diagnosed staple food allergy and HRQL amongst adolescents. Methods: In this cross-sectional study, 58 adolescents aged 13-17 years [n = 40 (69 %) boys] with objectively-diagnosed allergy to the staple foods cow's milk, hen's egg and/or wheat and living in Stockholm, Sweden were included. Adolescents completed the FAQLQ-TF, which has a corresponding scale of 1 = best HRQL, and 7 = worst HRQL. Overall HRQL and domain-specific HRQL were established. Adolescents also reported symptoms, adrenaline auto injector (AAI) prescription and presence of other food allergies. A history of anaphylaxis was defined among those reporting difficulty breathing, inability to stand/collapse, and/or loss of consciousness. Clinically different HRQL was set at a mean difference of >= 0.5. Results: Overall mean HRQL was poorer than average [mean: 4.70/7.00 (95 % CI 4.30-5.01)]. The domain risk of accidental exposure was significantly associated with clinically better HRQL than the domain allergen avoidance and dietary restrictions (mean difference = 0.76; p < 0.001). Girls had clinically worse, but not statistically significantly different mean HRQL than boys (mean difference = 0.71; p < 0.07). HRQL tended to be worse amongst those with allergies to more than three foods or an AAI prescription. The number and types of symptoms, including a history of anaphylaxis were not associated with worse HRQL. Conclusions: As ascertained via a food allergy-specific questionnaire, adolescents with staple food allergy report poorer than average HRQL, specifically in relation to emerging independence and the need for support. Girls have clinically worse HRQL than boys. The number and type of previous symptoms and history of anaphylaxis were not associated with worse HRQL.
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| 3. |
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| 4. |
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| 5. |
- Bengtsson, Johanna, 1985-
(author)
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The impact of cytochrome P4501-inhibitors on aryl hydrocarbon receptor signaling
- 2016
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Doctoral thesis (other academic/artistic)abstract
- The aryl hydrocarbon receptor (AHR) best known as a ligand-activated transcription factor that mediates toxic responses to xenobiotics such as dioxins, is also activated by certain endogenous compounds. Activation of the AHR up-regulates transcription of a large number of genes, including those encoding members of the cytochrome P450 1 family of enzymes (CYP1s). Although the AHR has been shown to be involved in several normal processes, its physiological role remains elusive. The endogenous ligand 6-formylindolo[3,2-b]carbazole (FICZ), formed from tryptophan, is present in cell culture media and biological specimens. FICZ is an excellent substrate for CYP1 enzymes and together FICZ/AHR/CYP1A1 interactions constitute an auto regulatory feedback loop that controls AHR signaling. A vast number of compounds that inhibit CYP1 enzymes have been reported to be AHR activators, even though they have little or no affinity for the receptor. We hypothesized, that their agonistic effects are dependent on the presence of background levels of FICZ. To test this, AHR signaling in different cell systems exposed to FICZ and/or inhibitors was assessed by measuring EROD activity and CYP1A1 transcription. In addition to a commercial culture medium, a medium free of background levels of FICZ was used. Activation of AHR by of a diverse set of CYP1A1 inhibitors did require FICZ in the culture medium. Furthermore, the compounds tested both prolonged and potentiated FICZ-induced receptor signaling. On the basis of these observations we propose that a compound may activate AHR signaling indirectly by inhibiting CYP1A1 and thereby attenuating the metabolism of FICZ. This mechanism was confirmed for certain polyphenols and pharmaceuticals. Surprisingly, the activating capacity and potentiating effect of two pharmaceuticals on AHR signaling could not be explained by the mechanism proposed, and we speculated that in these cases the agonistic effect might involve interactions of the cellular antioxidant response with the basic transcription machinery. Together, our observations provide a mechanistic explanation as to how compounds that inhibit CYP1A1 can activate AHR signaling. They also indicate that the general perception of the binding pocket of AHR as promiscuous, is probably wrong. The fact that indirect activation of AHR may cause sustained signaling requires further studies in vivo not least, in order to prevent toxicity.
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| 6. |
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| 7. |
- Bengtsson, Karin, 1980, et al.
(author)
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Are ankylosing spondylitis, psoriatic arthritis and undifferentiated spondyloarthritis associated with an increased risk of cardiovascular events? A prospective nationwide population-based cohort study
- 2017
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In: Arthritis Research and Therapy. - : Springer Science and Business Media LLC. - 1478-6354 .- 1478-6362. ; 19:1
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Journal article (peer-reviewed)abstract
- Background: To investigate the risk of first-time acute coronary syndrome (ACS), stroke and venous thromboembolism (VTE) in patients with ankylosing spondylitis (AS), psoriatic arthritis (PsA) and undifferentiated spondyloarthritis (uSpA), compared to each other and to the general population (GP). Methods: This is a prospective nationwide cohort study. Cohorts with AS (n = 6448), PsA (n = 16,063) and uSpA (n = 5190) patients and a GP (n = 266,435) cohort, were identified 2001-2009 in the Swedish National Patient and Population registers. The follow-up began 1 January 2006, or 6 months after the first registered spondyloarthritis (SpA) diagnosis thereafter, and ended at ACS/stroke/VTE event, death, emigration or 31 December 2012. Crude and age- and sex-standardized incidence rates (SIRs) and hazard ratios (HRs) were calculated for incident ACS, stroke or VTE, respectively. Results: Standardized to the GP cohort, SIRs for ACS were 4.3, 5.4 and 4.7 events per 1000 person-years at risk in the AS, PsA and uSpA cohort, respectively, compared to 3.2 in the GP cohort. SIRs for stroke were 5.4, 5.9 and 5.7 events per 1000 person-years at risk in the AS, PsA and uSpA cohort compared to 4.7 in the GP cohort. Corresponding SIRs for VTE were 3.6, 3.2 and 3.5 events per 1000 person-years at risk compared to 2.2 in the GP cohort. Age-and sex-adjusted HRs (95% CI) for ACS events were significantly increased in AS (1.54 (1.31-1.82)), PsA (1.76 (1.59-1.95)) and uSpA (1.36 (1.05-1.76)) compared to GP. Age-adjusted HRs for ACS was significantly decreased in female AS patients (0.59 (0.37-0.97)) compared to female PsA patients. Age-and sex-adjusted HRs for stroke events were significantly increased in AS (1.25 (1.06-1.48)) and PsA (1.34 (1.22-1.48)), and nonsignificantly increased in uSpA (1.16 (0.91-1.47)) compared to GP. For VTE the age-and sex-adjusted HRs for AS, PsA and uSpA were equally and significantly increased with about 50% compared to GP. Conclusions: Patients with AS, PsA and uSpA are at increased risk for ACS and stroke events, which emphasizes the importance of identification of and intervention against cardiovascular risk factors in SpA patients. Increased alertness for VTE is warranted in patients with SpA.
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| 8. |
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| 9. |
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| 10. |
- Bengtsson, Karin, 1980, et al.
(author)
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Risk of cardiac rhythm disturbances and aortic regurgitation in different spondyloarthritis subtypes in comparison with general population : A register-based study from Sweden
- 2018
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In: Annals of the Rheumatic Diseases. - : BMJ. - 0003-4967 .- 1468-2060. ; 77:4, s. 541-548
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Journal article (peer-reviewed)abstract
- Objectives To describe the incidence of atrioventricular (AV) block II-III, atrial fibrillation (AF), pacemaker implantation (PM) and aortic regurgitation in patients with ankylosing spondylitis (AS), undifferentiated spondyloarthritis (uSpA) and psoriatic arthritis (PsA) compared with the general population (GP) and with each other. Methods A prospective nationwide study with cohorts of patients with AS (n=6448), PsA (n=16 063) and uSpA (n=5190) and a GP (n=2 66 435) cohort, identified in 2001-2009 in the Swedish National Patient and Population registers. Follow-up began on 1 January 2006 and ended at event, death, emigration or 31 December 2012. Age-standardised and sex-standardised incidence rates and hazard ratios (HRs) were calculated. Results The highest incidence rates were noted for AF (5.5-7.4 events per 1000 person-years), followed by PM (1.0-2.0 events per 1000 person-years). HRs for AV block, AF, PM and aortic regurgitation were significantly increased in AS (HRs 2.3, 1.3, 2.1 and 1.9), uSpA (HRs 2.9, 1.3, 1.9 and 2.0) and PsA (HRs 1.5, 1.5, 1.6 and 1.8) compared with the GP cohort. The highest HRs were seen for AV block in male uSpA (HR 4.2) and AS (HR 2.5) compared with GP. Compared with PsA, significantly increased HRs were noted for PM (HR 1.5) in AS and for AV block (HR 1.8) in uSpA. Conclusions Patients with SpA are at increased risk of aortic regurgitation, cardiac rhythm disturbances and, as a probable consequence, also PM. Particularly for AF, the most common arrhythmia, increased caution is warranted, whereas AV block should be looked for especially in men with AS or uSpA.
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| 11. |
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| 12. |
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| 13. |
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| 14. |
- Bengtsson, Ulf, et al.
(author)
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Increased mercury emissions from modern dental amalgams
- 2017
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In: Biometals. - : SPRINGER. - 0966-0844 .- 1572-8773. ; 30:2, s. 277-283
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Journal article (peer-reviewed)abstract
- All types of dental amalgams contain mercury, which partly is emitted as mercury vapor. All types of dental amalgams corrode after being placed in the oral cavity. Modern high copper amalgams exhibit two new traits of increased instability. Firstly, when subjected to wear/polishing, droplets rich in mercury are formed on the surface, showing that mercury is not being strongly bonded to the base or alloy metals. Secondly, high copper amalgams emit substantially larger amounts of mercury vapor than the low copper amalgams used before the 1970s. High copper amalgams has been developed with focus on mechanical strength and corrosion resistance, but has been sub-optimized in other aspects, resulting in increased instability and higher emission of mercury vapor. This has not been presented to policy makers and scientists. Both low and high copper amalgams undergo a transformation process for several years after placement, resulting in a substantial reduction in mercury content, but there exist no limit for maximum allowed emission of mercury from dental amalgams. These modern high copper amalgams are nowadays totally dominating the European, US and other markets, resulting in significant emissions of mercury, not considered when judging their suitability for dental restoration.
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| 15. |
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| 16. |
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| 17. |
- Björnstig, Ulf, et al.
(author)
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Tågolyckan på Once station, Buenos Aires 2012
- 2019
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Reports (other academic/artistic)abstract
- Händelsen: Tågolyckan inträffade på morgonen den 22 februari 2012 när ett lokaltåg okontrollerat körde in i stoppanordningen i slutet av perrongen på Once station, i centrala Buenos Aires. Hastigheten var mellan 20 och 27 km i timmen, men stoppet var så kraftigt att vagn nummer två trängde sex meter in i vagn nummer ett. Sammanlagt skadades cirka 850 personer varav 51 avled, de flesta omkom i samband med att de två första vagnarna klämdes ihop. Bidragande faktorer till att så många skadades var, ett överfullt tåg av äldre modell, som var dåligt underhållet, och kördes av en organisation med låg säkerhetsmedvetenhet. Händelsen visar att en masskadesituation kan uppstå även vid låga hastigheter. Räddningsinsatsen var omfattande: ett hundratal ambulanser, tre helikoptrar och mer än 500 räddningsarbetare engagerades för att omhänderta skadade och fördela dem mellan huvudstadens 13 akutsjukhus. Beredskapen i Buenos Aires var god vid denna händelse, tack vare genomförda risk- och sårbarhetsanalyser, övningar och utbildningsinsatser. Den argentinska akutmedicinska responsorganisationen och sjukhusen arbetade i stor utsträckning enligt samma katastrofmedicinska principer som i Sverige. Händelsen kunde därför analyseras utifrån ett svenskt perspektiv.Erfarenheter: Sverige har varit relativt förskonat från tågolyckor med många svårt skadade. Däremot har tillbuden ökat kraftigt och järnvägssystemet är idag slitet och överbelastat. Det finns därför anledning att studera inträffade tågolyckor i världen för att dra lärdom av internationella erfarenheter av olika skadebegränsande faktorer som kan vara av betydelse för svensk katastrofmedicinsk beredskap. Det går att dra flera lärdomar ifrån tågolyckan på Once-stationen.Nedan redovisas ett antal sammanfattande slutsatser från händelsen med relevans för den svenska beredskapen:• Det finns en risk att händelser med många svårt skadade kan inträffa även vid låga hastigheter.• Tågens konstruktion, utformningen av koppel och deformationszoner, samt materielens förslitningsgrad är av stor betydelse för säkerheten.• Risken att passagerare, bagage och lösa föremål kastas runt i tågvagnen vid en häftig inbromsning är påtaglig.• Buffertstopp som är konstruerade så att de ger upphov till ett abrupt stopp, utgör en riskfaktor för allvarliga deformationsförlopp och skador, även vid låga hastigheter. TÅGOLYCKAN PÅ ONCE STATION, BUENOS AIRES 2012 SOCIALSTYRELSEN 9• Brister i företags och myndigheters kvalitetssäkring av sin verksamhet bidrar till att risken för händelser som tågolyckan på Once-stationen inträffar.• Varningar om tekniska fel som inte tas på allvar i organisationens säkerhetsarbete utgör en riskfaktor.• Bristande träning bland räddningspersonal i de räddningstekniska svårigheter som kan uppstå vid en tågolycka, till exempel att ta loss fastklämda, kan bidra till att hantering av drabbade fördröjs.• Förmågan att bedöma situationen och prioritera bland de drabbade i samråd med medicinskt ansvarig kan sannolikt vara av stor betydelse för att minska insatstiden till de svårast klämda och skadade.• Samtliga sjukhus bör ha en i förväg fastställd förmåga att ta emot patienter vid förstärknings- respektive katastrofläge, så att särskild sjukvårdsledning på regional nivå har möjlighet att snabbt fördela ett stort antal skadade.• En väl fungerande plan för krisstöd och samlad anhörigupplysning underlättar för den somatiska vården. Brister i en sådan plan får stora konsekvenser för allmänhetens förtroende.• För att hantera en lika stor tågolycka i Sverige kan flera regioner behöva engageras, vilket ställer stora krav på ledningsförmågan i den drabbade regionen. Dessutom behövs en effektiv samverkan mellan lokal, regional och nationell nivå. Det är därför nödvändigt med en gemensam nationell ledningsmodell vid särskild händelse, gemensamma kris- och katastrofmedicinska utbildningar och regelbundna övningar.
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| 18. |
- Ehliasson, Kent, et al.
(author)
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Support to individuals with comprehensive disabilities : ideas in the Swedish Disability Act
- 2016
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In: Scandinavian Journal of Disability Research. - 1501-7419 .- 1745-3011. ; 18:3, s. 234-244
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Journal article (peer-reviewed)abstract
- The purpose of this study was to determine and describe the ideas, that is, a mental construction of perceived reality and values, which are expressed in the Swedish Disability Act and its Government Bill. By means of text analysis, four concepts of reality and values have been identified: (1) Citizenship and justice, (2) The collective and integration, (3) The individual and autonomy, and (4) Decentralization and power shifts. The study also shows that social rights and social citizenship have been strengthened via legislation for individuals with comprehensive disabilities. It is also demonstrated that there is considerable room in the legislation for conflicts between the two concepts and values of collective/integration and the individual/autonomy. It can also be observed that there is a considerable risk that citizens are not treated in a similar manner as regards the interpretation and application of the Disability Act, which may lead to lack of legal security.
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| 19. |
- Ehliasson, Kent, et al.
(author)
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Support to individuals with comprehensive disabilities : ideas in the Swedish Disability Act
- 2016
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In: Scandinavian Journal of Disability Research. - : Stockholm University Press. - 1501-7419 .- 1745-3011. ; 18:3, s. 234-244
-
Journal article (peer-reviewed)abstract
- The purpose of this study was to determine and describe the ideas, that is, a mental construction of perceived reality and values, which are expressed in the Swedish Disability Act and its Government Bill. By means of text analysis, four concepts of reality and values have been identified: (1) Citizenship and justice, (2) The collective and integration, (3) The individual and autonomy, and (4) Decentralization and power shifts. The study also shows that social rights and social citizenship have been strengthened via legislation for individuals with comprehensive disabilities. It is also demonstrated that there is considerable room in the legislation for conflicts between the two concepts and values of collective/integration and the individual/autonomy. It can also be observed that there is a considerable risk that citizens are not treated in a similar manner as regards the interpretation and application of the Disability Act, which may lead to lack of legal security.
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| 20. |
- Ericsson, Ulf, et al.
(author)
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Meaning in work and emerging work identities of housing support workers : a quest for a comprehensible plot
- 2016
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In: Work. - 1051-9815 .- 1875-9270. ; 53:2, s. 367-376
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Journal article (peer-reviewed)abstract
- BACKGROUND: Work and employees are often marginalized in studies on community-based psychiatric care and support systems. This paper highlights the role of the worker at congregated supported housing for people with severe mental illness (SMI). Housing support workers (HSW) are a fairly new professional role and have developed as a result of major changes in Swedish mental health care and services. The development of new roles is not unproblematic and raises intriguing questions.OBJECTIVE: The purpose of this article is to describe housing support workers’ experiences of meaning in their work, and in addition illuminate how the work identity of HSWs can be negotiated and constructed.METHODS: Four focus group interviews were conducted with a total of 25 participants. Additionally, three follow up sessions were conducted with the same participants. The material consists of employees from four different sites. The intepretation of the material was inspired by a constructionist approach.RESULTS: The analysis generated three themes: to do a good job, everyday needs and the formal role. The work identity for HSWs is complex and not easily interpreted.CONCLUSIONS: The experience of an unclear assignment affects the description of what is meaningful and important—the work identity and significant affiliations for HSWs. In the long run, this fragmented world can have negative implications for the HSW.
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| 21. |
- Ericsson, Ulf, et al.
(author)
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Meaning in work and emerging work identities of housing support workers : a quest for a comprehensible plot
- 2016
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In: Work. - 1051-9815 .- 1875-9270. ; 53:2, s. 367-376
-
Journal article (peer-reviewed)abstract
- BACKGROUND: Work and employees are often marginalized in studies on community-based psychiatric care and support systems. This paper highlights the role of the worker at congregated supported housing for people with severe mental illness (SMI). Housing support workers (HSW) are a fairly new professional role and have developed as a result of major changes in Swedish mental health care and services. The development of new roles is not unproblematic and raises intriguing questions. OBJECTIVE: The purpose of this article is to describe housing support workers’ experiences of meaning in their work, and in addition illuminate how the work identity of HSWs can be negotiated and constructed. METHODS: Four focus group interviews were conducted with a total of 25 participants. Additionally, three follow up sessions were conducted with the same participants. The material consists of employees from four different sites. The intepretation of the material was inspired by a constructionist approach. RESULTS: The analysis generated three themes: to do a good job, everyday needs and the formal role. The work identity for HSWs is complex and not easily interpreted. CONCLUSIONS: The experience of an unclear assignment affects the description of what is meaningful and important—the work identity and significant affiliations for HSWs. In the long run, this fragmented world can have negative implications for the HSW.
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| 22. |
- Ericsson, Ulf, 1978-, et al.
(author)
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Working with stories : Street-Level bureaucrats and their work with individuals with psychiatric disability exposed to interpersonal violence
- 2017
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In: Journal of Social Work in Disability & Rehabilitation. - 1536-710X .- 1536-7118. ; 16:3-4, s. 325-346
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Journal article (peer-reviewed)abstract
- The focus of our attention is the meeting between street-level bureaucrats and individuals with psychiatric disability exposed to interpersonal violence. Based on eleven interviews, we illustrate how stories are understood, used and made meaningful to the street-level bureaucrat. The contribution of this article is first of all that of being a framework, from a storytelling point of view, for the work and organizational experiences of street-level bureaucrats. Secondly, by paying attention to the story part of these relationships, we can better understand the situation of individuals with psychiatric disability exposed to interpersonal violence given their interaction with different street-level bureaucrats.
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| 23. |
- Ericsson, Ulf, et al.
(author)
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Working with stories : Street-Level bureaucrats and their work with individuals with psychiatric disability exposed to interpersonal violence
- 2017
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In: Journal of Social Work in Disability & Rehabilitation. - : Routledge. - 1536-710X. ; 16:3-4, s. 325-346
-
Journal article (peer-reviewed)abstract
- The focus of our attention is the meeting between street-level bureaucrats and individuals with psychiatric disability exposed to interpersonal violence. Based on eleven interviews, we illustrate how stories are understood, used and made meaningful to the street-level bureaucrat. The contribution of this article is first of all that of being a framework, from a storytelling point of view, for the work and organizational experiences of street-level bureaucrats. Secondly, by paying attention to the story part of these relationships, we can better understand the situation of individuals with psychiatric disability exposed to interpersonal violence given their interaction with different street-level bureaucrats.
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| 24. |
- Nybacka, Sanna, et al.
(author)
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Neither self-reported atopy nor IgE-mediated allergy are linked to gastrointestinal symptoms in patients with irritable bowel syndrome
- 2018
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In: Neurogastroenterology and Motility. - : Wiley. - 1350-1925 .- 1365-2982. ; 30:10
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Journal article (peer-reviewed)abstract
- BackgroundAmong patients with irritable bowel syndrome (IBS), atopic disease has been proposed as a common comorbidity increasing the IBS symptom burden. We therefore assessed the prevalence of self-reported atopy among patients with IBS as compared to non-IBS controls, and whether atopy and higher serum IgE levels were associated with increased IBS symptom severity. MethodsLevels of total and specific IgE in serum were measured and questionnaires assessing the presence of atopic disease (ie, eczema, asthma, rhinoconjunctivitis, and pollen allergy), gastrointestinal symptom burden, food intolerance, somatic, and psychological symptoms were completed. Key resultsIn total, 223 patients with IBS and 47 controls participated. Presence of atopic disease was reported in 55% of patients with IBS compared to 40% of controls (P=.07). IBS patients with atopic manifestations (N=123) had higher total serum IgE levels (median 31 vs 16 kU(A)/L, P<.001) and higher prevalence of self-reported food intolerance (28% vs 9%, P=.002) than non-atopic IBS patients (N=100), respectively, but no major difference in gastrointestinal or psychological symptom burden was noted. However, severe somatic symptoms were more common among atopic than non-atopic patients with IBS (38% vs 27%, P=.028). We found no associations between self-reported atopy and IBS symptom severity using linear regression models. Conclusions & InferencesAtopic disease is common in patients with IBS, but that is also true for subjects without IBS. The presence of atopic disease in IBS is associated with self-reported food intolerance and somatic symptom severity, but unrelated to IBS symptom severity.
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| 25. |
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| 26. |
- Runow Stark, Christina, et al.
(author)
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Brush Biopsy For HR-HPV Detection With FTA Card And AI For Cytology Analysis - A Viable Non-invasive Alternative
- 2018
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In: EAOM2018.
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Conference paper (peer-reviewed)abstract
- Introduction: Oral cancer accounts for about 800-1,000 new cases each year in Sweden and the ratio of cancer related to high-risk human papillomavirus (HR-HPV) is increasing in the younger population due to changes in sexual habits. The most two frequent HR-HPV types 16 and 18 have both significant oncogenic potential.Objectives: In this pilot study we evaluate two non-invasive automated methods; 1) detection of HR-HPV using FTA cards, and 2) image scanning of cytology for detection of premalignant lesions as well as eradicate the early stage of neoplasia.Material and Methods: 160 patients with verified HR-HPV oropharyngeal cancer, previous ano-genital HR-HPV-infection or potentially malignant oral disorder were recruited for non-invasive brush sampling and analyzed with two validated automated methods both used in cervix cancer screening. For analysis of HR-HPV DNA the indicating FTA elute micro cardTM were used for dry collection, transportation and storage of the brush samples. For analysis of cell morphology changes an automated liquid base Cytology method (Preserve Cyt) combined with deep learning computer aided technique was used.Results: Preliminary results show that the FTA-method is reliable and indicates that healthy and malignant brush samples can be separated by image analysis. Conclusions: With further development of these fully automated methods, it is possible to implement a National Screening Program of the oral mucosa, and thereby select patients for further investigation in order to find lesions with potential malignancy in an early stage.
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| 27. |
- Thorsheim, Karin, et al.
(author)
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Hydroxylated oxanes as xyloside analogs for determination of the minimal binding requirements of β4GalT7
- 2017
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In: Tetrahedron Letters. - : Elsevier BV. - 0040-4039. ; 58:35, s. 3466-3469
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Journal article (peer-reviewed)abstract
- β-1,4-Galactosyltransferase 7 (β4GalT7) is a key enzyme in the biosynthesis of glycosaminoglycan (GAG) chains. Natural and synthetic xylosides can be used to both inhibit and prime GAG synthesis by acting as inhibitors or substrates for β4GalT7. In this report, we exploit hydroxylated oxanes as deoxygenated xyloside analogs to clarify the minimum protein-ligand interactions required for galactosylation and/or inhibition. Enantiomerically pure substances were synthesized using a chiral pool approach whereas the corresponding racemates were obtained from simple starting materials. The results of a β4GalT7 assay show that a single hydroxyl group on an oxane ring is insufficient to induce galactosylation or inhibition, which implies that at least two substituents, one of which being 3-OH, needs to be present.
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| 28. |
- Wahlgren, Weixiao Yuan, 1970, et al.
(author)
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Substrate-bound outward-open structure of a Na+-coupled sialic acid symporter reveals a new Na+ site.
- 2018
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In: Nature Communications. - : Springer Science and Business Media LLC. - 2041-1723. ; 9:1
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Journal article (peer-reviewed)abstract
- Many pathogenic bacteria utilise sialic acids as an energy source or use them as an external coating to evade immune detection. As such, bacteria that colonise sialylated environments deploy specific transporters to mediate import of scavenged sialic acids. Here, we report a substrate-bound 1.95Å resolution structure and subsequent characterisation of SiaT, a sialic acid transporter from Proteus mirabilis. SiaT is a secondary active transporter of the sodium solute symporter (SSS) family, which use Na+ gradients to drive the uptake of extracellular substrates. SiaT adopts the LeuT-fold and is in an outward-open conformation in complex with the sialic acid N-acetylneuraminic acid and two Na+ ions. One Na+ binds to the conserved Na2 site, while the second Na+ binds to a new position, termed Na3, which is conserved in many SSS family members. Functional and molecular dynamics studies validate the substrate-binding site and demonstrate that both Na+ sites regulate N-acetylneuraminic acid transport.
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| 29. |
- Willén, Daniel, et al.
(author)
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Synthesis of Double-Modified Xyloside Analogues for Probing the β4GalT7 Active Site
- 2018
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In: Journal of Organic Chemistry. - : American Chemical Society (ACS). - 0022-3263 .- 1520-6904. ; 83:3, s. 1259-1277
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Journal article (peer-reviewed)abstract
- Monosubstituted naphthoxylosides have been shown to function as substrates for, and inhibitors of, the enzyme β4GalT7, a key enzyme in the biosynthetic pathway leading to glycosaminoglycans and proteoglycans. In this article, we explore the synthesis of 16 xyloside analogues, modified at two different positions, as well as their function as inhibitors of and/or substrates for the enzyme. Seemingly simple compounds turned out to require complex synthetic pathways. A meta-analysis of the synthetic work shows that, regardless of the abundance of methods available for carbohydrate synthesis, even simple modifications can turn out to be problematic, and double modifications present additional challenges due to conformational, steric, and stereoelectronic effects.
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