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1.
  • Nilsson, Ulrika, et al. (författare)
  • SPE and HPLC/UV of resin acids in colophonium-containing products.
  • 2008
  • Ingår i: Journal of separation science. - Weinheim, Fed. Rep. of Germany : Wiley-VCH Verlagsgesellschaft. - 1615-9314 .- 1615-9306. ; 31:15, s. 2784-90
  • Tidskriftsartikel (refereegranskat)abstract
    • A new method, involving SPE and HPLC/UV diode-array detection (DAD), was developed for the quantification of colophonium components in different consumer products, such as cosmetics. Colophonium is a common cause of contact dermatitis since its components can oxidize into allergens on exposure to air. Three different resin acids were used as markers for native and oxidized colophonium, abietic acid (AbA), dehydroabietic acid (DeA), and 7-oxodehydroabietic acid (7-O-DeA). The SPE method, utilizing a mixed-mode hydrophobic and anion exchange retention mechanism, was shown to yield very clean extracts. The use of a urea-embedded C(12) HPLC stationary phase improved the separation of the resin acids compared to common C(18). Concentrations higher than 2 mg/g of both AbA and DeA were detected in wax strips. In this product also 7-O-DeA, a marker for oxidized colophonium, was detected at a level of 28 microg/g. The LODs were in the range of 7-19 microg/g and the LOQs 22-56 microg/g. The method is simple to use and can be applied on many types of technical products, not only cosmetics. For the first time, a method for technical products was developed, which separates AbA from pimaric acid.
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2.
  • Werner, Mårten, et al. (författare)
  • Autoimmune hepatitis among fertile women : strategies during pregnancy and breastfeeding?
  • 2007
  • Ingår i: Scandinavian Journal of Gastroenterology. - : Informa Healthcare. - 0036-5521 .- 1502-7708. ; 42:8, s. 986-991
  • Tidskriftsartikel (refereegranskat)abstract
    • Objective. In published studies there is a lack of data about the risks, management and how women with autoimmune hepatitis (AIH) decide on and are advised about pregnancy. The aim of this study was to investigate how women with AIH consider pregnancies, are advised and pharmacologically treated, as well as the outcome. Material and methods. A questionnaire was mailed to 128 women with AIH diagnosed during their fertile period and data from the Swedish National Birth Register was also used for matched controls. Results. There was an 83% response rate to the questionnaires. Sixty-three pregnancies were reported by 35 women. 48% did not consult their doctors before getting pregnant. More than half of the women reduced or stopped the immune suppression during pregnancy or breastfeeding. Some women were advised to abstain from pregnancy or even to have an abortion. Caesarean sections were performed more frequently in the AIH group (16% compared with 6.5% in the control group p<0.01).There were no significant differences in the number of stillborn infants or infants with malformations. However, 30% of the patients experienced flare-up after delivery. Conclusions. In general, the outcome of pregnancy in women with AIH seems to be good. Current pharmacological treatment appears to be safe, including azathioprine during pregnancy and lactation. After delivery an active preparedness to increase pharmacotherapy should be considered.
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3.
  • af Sillén, Ulrika, et al. (författare)
  • Self-rated health in relation to age and gender: influence on mortality risk in the Malmö Preventive Project.
  • 2005
  • Ingår i: Scandinavian Journal of Public Health. - : SAGE Publications. - 1651-1905. ; 33:3, s. 9-183
  • Tidskriftsartikel (refereegranskat)abstract
    • Aims: A study was undertaken to examine whether poor self-rated health (SRH) can independently predict all-cause mortality during 22-year follow-up in middle-aged men and women. Subjects and methods: Data are derived from a population-based study in Malmo¨ , Sweden. This included baseline laboratory testing and a self-administered questionnaire. The question on global SRH was answered by 15,590 men (mean age 46.4 years) and 10,089 women (49.4 years). Social background characteristics (occupation, marital status) were based on data from national censuses. Mortality was retrieved from national registers. Results: At screening 4,261 (27.3%) men and 3,085 (30.6%) women reported poor SRH. Among subjects rating their SRH as low, 1,022 (24.0%) men and 228 (7.4%) women died during follow-up. Corresponding figures for subjects rating their SRH as high were 1801 (15.9%) men and 376 (5.4%) women. An analysis of survival in subjects reporting poor SRH revealed an age-adjusted hazard risk ratio (HR, 95%CI) for men HR 1.5 (1.4–1.7), and for women HR 1.4 (1.2–1.6). The corresponding HR after adjusting for possible social confounders was for men HR 1.3 (1.1–1.4), and women HR 1.1 (0.9–1.4). When additional adjustment was made for biological risk factors the association for men was still significant, HR 1.2 (1.1–1.3). Conclusion: Poor SRH predicts increased long-term mortality in healthy, middle-aged subjects. For men the association is independent of both social background and selected biological variables. The adjustment for biological variables can be questioned as they might represent mediating mechanisms in a possible causal chain of events.
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4.
  • Islander, Ulrika, 1975, et al. (författare)
  • Estren-mediated inhibition of T lymphopoiesis is estrogen receptor-independent whereas its suppression of T cell-mediated inflammation is estrogen receptor-dependent
  • 2005
  • Ingår i: Clin Exp Immunol. - 0009-9104. ; 139:2, s. 210-5
  • Tidskriftsartikel (refereegranskat)abstract
    • Estrogen has extensive effects on the immune system. The aim of the present experiments was to compare the effects of 17beta-estradiol (E2) and 4-estren-3alpha,17beta-diol (estren) on T lymphopoiesis and T cell-dependent inflammation. In order to investigate the role of estrogen receptors (ER) in the effects of E2 and estren on the immune system, ER knock-out mice lacking both ERalpha and ERbeta (DERKO) were used. T lymphopoiesis and T cell-dependent inflammation were studied by investigating thymus cellularity, the delayed-type hypersensitivity (DTH) reaction, CD4(+) T cells in spleen and serum levels of interleukin (IL)-6. As expected, the presence of ERs was mandatory for all the effects of E2. In contrast, treatment with estren reduced thymus cellularity in ER knock-out mice, indicating an effect through ER-independent pathways. Interestingly, estren suppressed only DTH, the frequency of CD4(+) T cells in spleen and serum levels of IL-6 in wild-type (WT) mice, but not in mice lacking ERs. Thus, our study is the first to show that estren inhibits T lymphopoiesis via ER-independent pathways, whereas its suppressive effects on inflammation are ER-dependent.
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5.
  • Janzi, Magdalena, et al. (författare)
  • Screening for C3 deficiency in newborns using microarrays.
  • 2009
  • Ingår i: PloS one. - 1932-6203. ; 4:4, s. e5321-
  • Tidskriftsartikel (refereegranskat)abstract
    • BACKGROUND: Dried blood spot samples (DBSS) from newborns are widely used in neonatal screening for selected metabolic diseases and diagnostic possibilities for additional disorders are continuously being evaluated. Primary immunodeficiency disorders comprise a group of more than one hundred diseases, several of which are fatal early in life. Yet, a majority of the patients are not diagnosed due to lack of high-throughput screening methods.METHODOLOGY/PRINCIPAL FINDINGS: We have previously developed a system using reverse phase protein microarrays for analysis of IgA levels in serum samples. In this study, we extended the applicability of the method to include determination of complement component C3 levels in eluates from DBSS collected at birth. Normal levels of C3 were readily detected in 269 DBSS from healthy newborns, while no C3 was detected in sera and DBSS from C3 deficient patients.CONCLUSIONS/SIGNIFICANCE: The findings suggest that patients with deficiencies of specific serum proteins can be identified by analysis of DBSS using reverse phase protein microarrays.
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6.
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7.
  • Mårtensson, Ulrika, et al. (författare)
  • Deletion of the G protein-coupled Receptor GPR30 Impairs Glucose Tolerance, Reduces Bone Growth, Increases Blood Pressure, and Eliminates Estradiol-stimulated Insulin Release in Female Mice.
  • 2009
  • Ingår i: Endocrinology. - : Oxford University Press. - 0013-7227. ; 150:2, s. 687-698
  • Tidskriftsartikel (refereegranskat)abstract
    • In vitro studies suggest that the G protein-coupled receptor GPR30 is a functional estrogen receptor. However, the physiological role of GPR30 in vivo is unknown, and it remains to be determined if GPR30 is an estrogen receptor also in vivo. To this end, we studied the effects of disrupting the GPR30 gene in female and male mice. Female GPR30((-/-)) mice had hyperglycemia and impaired glucose tolerance, reduced body growth, increased blood pressure, and reduced serum insulin-like growth factor-I levels. The reduced growth correlated with a proportional decrease in skeletal development. The elevated blood pressure was associated with an increased vascular resistance manifested as an increased media:lumen ratio of the resistance arteries. The hyperglycemia and impaired glucose tolerance in vivo were associated with decreased insulin expression and release in vivo and in vitro in isolated pancreatic islets. GPR30 is expressed in islets, and GPR30 deletion abolished estradiol-stimulated insulin release both in vivo in ovariectomized adult mice and in vitro in isolated islets. Our findings show that GPR30 is important for several metabolic functions in female mice including estradiol-stimulated insulin release.
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8.
  • Mårtensson, Ulrika E A, et al. (författare)
  • Deletion of the G protein-coupled receptor 30 impairs glucose tolerance, reduces bone growth, increases blood pressure, and eliminates estradiol-stimulated insulin release in female mice.
  • 2009
  • Ingår i: Endocrinology. - 1945-7170. ; 150:2, s. 687-98
  • Tidskriftsartikel (refereegranskat)abstract
    • In vitro studies suggest that the G protein-coupled receptor (GPR) 30 is a functional estrogen receptor. However, the physiological role of GPR30 in vivo is unknown, and it remains to be determined whether GPR30 is an estrogen receptor also in vivo. To this end, we studied the effects of disrupting the GPR30 gene in female and male mice. Female GPR30((-/-)) mice had hyperglycemia and impaired glucose tolerance, reduced body growth, increased blood pressure, and reduced serum IGF-I levels. The reduced growth correlated with a proportional decrease in skeletal development. The elevated blood pressure was associated with an increased vascular resistance manifested as an increased media to lumen ratio of the resistance arteries. The hyperglycemia and impaired glucose tolerance in vivo were associated with decreased insulin expression and release in vivo and in vitro in isolated pancreatic islets. GPR30 is expressed in islets, and GPR30 deletion abolished estradiol-stimulated insulin release both in vivo in ovariectomized adult mice and in vitro in isolated islets. Our findings show that GPR30 is important for several metabolic functions in female mice, including estradiol-stimulated insulin release.
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9.
  • Ahlström, Monica, et al. (författare)
  • Ett praktiskt försök : nationell prioriteringsmodell tillämpad i Landstinget i Kalmar Län
  • 2008
  • Rapport (övrigt vetenskapligt)abstract
    • Idag finns en nationell modell för hur öppna vertikala prioriteringar kan genomföras. Den är resultatet av de samlade erfarenheterna av att omsätta riksdagens riktlinjer för prioriteringar i praktiskt prioriteringsarbete. Modellen är framtagen av Socialstyrelsen, PrioriteringsCentrum samt flera vårdförbund och landsting gemensamt. Också FSA och LSR har ställt sig bakom den. Fram tills nu har det dock saknats praktisk erfarenhet av att tillämpa modellen inom arbetsterapi och sjukgymnastik. Men sedan drygt två år tillbaka har de båda rehabiliteringsenheterna Samrehab och Rehab Söder i Landstinget i Kalmar län med stöd av PrioriteringsCentrum bedrivit ett prioriteringsarbete i enlighet med modellen. Det är deras erfarenheter denna rapport handlar om.Prioriteringsarbetet har med nära stöd av verksamhetsledningarna letts av en projektgrupp bestående av arbetsterapeuter och sjukgymnaster från de båda enheterna som fungerat som handledare, ansvarat för metodutveckling och utbildning samt kontinuerligt utvärderat arbetet. Själva tillämpningen av den nationella modellen har ett antal utvecklingsgrupper inom olika specialistområden stått för. De har valt ut och rangordnat tillstånd och olika åtgärder som de ansett angelägna att ta fram prioriteringar för.Ett av syftena med prioriteringsarbetet i Samrehab och Rehab Söder var att få till stånd länsövergripande prioriteringar inom vissa verksamheter och/eller för vissa sjukdomstillstånd för en mer likvärdig vård. Idag finns elva sådana prioriteringsordningar presenterade på landstingets intranät och ytterligare ett tiotal är under bearbetning. Utöver vinsterna med det förbättrade samarbetet mellan länsdelarna har alltså den interna öppenheten i prioriteringarna ökat. Alla anställda kan lätt få fram prioriteringsordningarna via basenheternas hemsidor när man behöver det. Andra vinster av prioriteringsarbetet är att kännedomen och kunskapen om riksdagens riktlinjer för prioriteringar har ökat, att en större del av basenheternas verksamhet idag är faktabaserad än innan prioriteringsarbetet startade samt att den kliniska erfarenheten har tillvaratagits och dokumenterats på ett mer systematiskt sätt än tidigare. Det har dessutom skett en utveckling av den nationella modellen som har blivit mer konkret vad det gäller svårighetsgrad och nytta. En majoritet av deltagarna i utvecklingsgrupperna har haft en positiv inställning till att arbeta med prioriteringar utifrån modellen och upplever också att de erhållit ett språk som gör det möjligt att kommunicera prioriteringar med politiker och landstingsledning.I rapporten presenteras också de frågor kring modellens olika steg som dykt upp under arbetets gång. Tre frågor har dominerat; syftet med prioriteringsarbetet, tolkningen av modellen samt dokumentationen av prioriteringsarbetet. Syftet har inte alltid upplevts som helt klart och sambandet mellan prioriteringsarbetet och annat kvalitetsarbete som t ex framtagande av behandlingsriktlinjer har varit otydligt. När det gäller tolkningen av modellen har t ex graderingen av svårighetsgrad och patientnytta gett upphov till frustration. Också den skriftliga presentationen av prioriteringsordningarna har stundtals upplevts som krånglig och svår att förmedla till övriga medarbetare på ett användbart sätt.Alla de åtgärder som projektgruppen vidtagit för att underlätta de svårigheter som dykt upp delar de här med sig av i rapporten. Likaså pekar de ut viktiga förutsättningar för ett prioriteringsarbete (som t ex tid, kompetens, kontinuitet och legitima deltagare). Syftet med att pröva om den nationella modellen för öppna vertikala prioriteringar är användbar i Samrehabs och Rehab Söders prioriteringsarbete är uppnådd och det har inte framkommit något som ger anledning att ifrågasätta modellens grundstruktur. Förslag har dock givits bl a avseende bedömning av svårighetsgrad och patientnytta för att ytterligare underlätta tillämpningen.Nu planerar enheterna att gå vidare med sitt prioriteringsarbete, dels genom att fortsätta att ta fram behandlingsriktlinjer som kombineras med prioriteringar men också genom att ytterligare utveckla prioriteringsstödet för de enskilda medarbetarna i deras dagliga patientarbete. Om andra verksamheter i Sverige  följer efter detta exempel från Kalmar län med att öppet redovisa hur de hanterar prioriteringar i sin verksamhet kommer ytterligare nya erfarenheter att hjälpa metodutvecklingen på traven.
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10.
  • Amoudruz, Petra, et al. (författare)
  • Impaired Toll-like receptor 2 signaling in monocytes from 5-year-old allergic children
  • 2009
  • Ingår i: Clinical and Experimental Immunology. - 0009-9104 .- 1365-2249. ; 155:3, s. 387-394
  • Tidskriftsartikel (refereegranskat)abstract
    • The relative composition of the two major monocytic subsets CD14+CD16− and CD14+CD16+ is altered in some allergic diseases. These two subsets display different patterns of Toll-like receptor levels, which could have implications for activation of innate immunity leading to reduced immunoglobulin E-specific adaptive immune responses. This study aimed to investigate if allergic status at the age of 5 years is linked to differences in monocytic subset composition and their Toll-like receptor levels, and further, to determine if Toll-like receptor regulation and cytokine production upon microbial stimuli is influenced by the allergic phenotype. Peripheral blood mononuclear cells from 5-year-old allergic and non-allergic children were stimulated in vitro with lipopolysaccharide and peptidoglycan. Cells were analysed with flow cytometry for expression of CD14, Toll-like receptors 2 and 4 and p38-mitogen-activated protein kinase (MAPK). The release of cytokines and chemokines [tumour necrosis factor, interleukin (IL)-1β, IL-6, IL-8, IL-10, IL-12p70] into culture supernatants was measured with cytometric bead array. For unstimulated cells there were no differences in frequency of the monocytic subsets or their Toll-like receptor levels between allergic and non-allergic children. However, monocytes from allergic children had a significantly lower up-regulation of Toll-like receptor 2 upon peptidoglycan stimulation. Further, monocytes from allergic children had a higher spontaneous production of IL-6, but there were no differences between the two groups regarding p38-MAPK activity or cytokine and chemokine production upon stimulation. The allergic subjects in this study have a monocytic population that seems to display a hyporesponsive state as implicated by impaired regulation of Toll-like receptor 2 upon peptidoglycan stimulation.
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