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  • Resultat 221-230 av 164214
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221.
  • Abdulla, Afrah, 1975 (författare)
  • Nyanlända vuxnas andraspråksinlärning - möjligheter och hinder
  • 2022
  • Ingår i: Möjligheter till lärande - Andraspråksdidaktik i ett kritiskt perspektiv. - : Liber. - 9789147146956
  • Bokkapitel (refereegranskat)abstract
    • I detta kapitel diskuterar jag några av de faktorer som kan påverka nyanlända vuxnas uppfattningar om Sverige och svenska samhället, och därigenom inverka på deras andraspråksinlärning och attityderna till denna. Det finns både strukturella och individuella förutsättningar för detta lärande, där min tolkning är att de strukturella förutsättningarna sätter ramarna för och villkorar lärandet.
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222.
  • Abdulla, Maysaa, et al. (författare)
  • Cell-of-origin determined by both gene expression profiling and immunohistochemistry is the strongest predictor of survival in patients with diffuse large B-cell lymphoma
  • 2020
  • Ingår i: American Journal of Hematology. - : Wiley. - 0361-8609 .- 1096-8652. ; 95:1, s. 57-67
  • Tidskriftsartikel (refereegranskat)abstract
    • The tumor cells in diffuse large B-cell lymphomas (DLBCL) are considered to originate from germinal center derived B-cells (GCB) or activated B-cells (ABC). Gene expression profiling (GEP) is preferably used to determine the cell of origin (COO). However, GEP is not widely applied in clinical practice and consequently, several algorithms based on immunohistochemistry (IHC) have been developed. Our aim was to evaluate the concordance of COO assignment between the Lymph2Cx GEP assay and the IHC-based Hans algorithm, to decide which model is the best survival predictor. Both GEP and IHC were performed in 359 homogenously treated Swedish and Danish DLBCL patients, in a retrospective multicenter cohort. The overall concordance between GEP and IHC algorithm was 72%; GEP classified 85% of cases assigned as GCB by IHC, as GCB, while 58% classified as non-GCB by IHC, were categorized as ABC by GEP. There were significant survival differences (overall survival and progression-free survival) if cases were classified by GEP, whereas if cases were categorized by IHC only progression-free survival differed significantly. Importantly, patients assigned as non-GCB/ABC both by IHC and GEP had the worst prognosis, which was also significant in multivariate analyses. Double expression of MYC and BCL2 was more common in ABC cases and was associated with a dismal outcome. In conclusion, to determine COO both by IHC and GEP is the strongest outcome predictor to identify DLBCL patients with the worst outcome.
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223.
  • Abdulla, N., et al. (författare)
  • Epidemiology of hip fracture in Qatar and development of a country specific FRAX model
  • 2022
  • Ingår i: Archives of Osteoporosis. - : Springer Science and Business Media LLC. - 1862-3522 .- 1862-3514. ; 17:1
  • Tidskriftsartikel (refereegranskat)abstract
    • A Summary Hip fracture data were retrieved from electronical medical records for the years 2017-2019 in the State of Qatar and used to create a FRAX (R) model to facilitate fracture risk assessment. Hip fracture rates were comparable with estimates from Saudi Arabia, Abu Dhabi, and Kuwait but fracture probabilities varied due to differences in mortality. Objective This paper describes the epidemiology of osteoporotic fractures in the State of Qatar that was used to develop the country-specific fracture prediction FRAX (R) tool. Methods Hip fracture data were retrieved from electronic medical records for the years 2017-2019 in the State of Qatar. The age and sex specific incidence of hip fracture in Qatari residents and national mortality rates were used to create a FRAX (R) model. Fracture probabilities were compared with those from neighboring countries having FRAX models. Results Hip fracture rates were comparable with estimates from Saudi Arabia, Abu Dhabi and Kuwait. In contrast, probabilities of a major osteoporotic fracture or hip fracture were lower in Qatar than in Kuwait but higher than those in Abu Dhabi and Saudi Arabia due to differences in mortality. Conclusion The FRAX model should enhance accuracy of determining fracture probability among the Qatari population and help guide decisions about treatment.
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224.
  • Abdullah, Laila, et al. (författare)
  • The Influence of Baseline Alzheimer's Disease Severity on Cognitive Decline and CSF Biomarkers in the NILVAD Trial.
  • 2020
  • Ingår i: Frontiers in neurology. - : Frontiers Media SA. - 1664-2295. ; 11
  • Tidskriftsartikel (refereegranskat)abstract
    • We examined the effects of a dihydropyridine calcium channel blocker nilvadipine with anti-inflammatory properties on cognition and cerebrospinal fluid (CSF) biomarkers by baseline Alzheimer's disease (AD) severity. Exploratory analyses were performed on the dataset (n = 497) of a phase III randomized placebo-controlled trial to examine the response to nilvadipine in AD subjects stratified by baseline AD severity into very mild (MMSE ≥ 25), mild (MMSE 20-24) and moderate AD (MMSE < 20). The outcome measures included total and subscale scores of the Alzheimer's Disease Assessment Scale Cognitive 12 (ADAS-Cog 12), the Clinical Dementia Rating Scale sum of boxes (CDR-sb) and the AD composite score (ADCOMS). Cerebrospinal fluid biomarkers Aβ38, Aβ40, Aβ42, neurofilament light chain (NFL), neurogranin, YKL-40, total tau and P181 tau (ptau) were measured in a subset of samples (n = 55). Regression analyses were adjusted for confounders to specifically examine the influence of nilvadipine and baseline AD severity on cognitive outcomes over 78-weeks. Compared to their respective placebo-controls, nilvadipine-treated, very mild AD subjects showed less decline, whereas moderate AD subjects showed a greater cognitive decline on the ADAS-Cog 12 test and the ADCOMS. A lower decline was observed after nilvadipine treatment for a composite memory trait in very mild AD subjects and a composite language trait in mild AD subjects. Cerebrospinal fluid Aβ42/Aβ40 ratios were increased in mild AD and decreased in moderate AD patients treated with nilvadipine, compared to their respective controls. Among moderate AD subjects, levels of ptau, total tau, neurogranin and YKL-40 increased in subjects treated with nilvadipine compared to placebo. These studies suggest that baseline AD severity influenced the treatment outcome in the NILVAD trial and that future clinical trials of nilvadipine should be restricted to mild and very mild AD patients. Trial Registration: NCT02017340 Registered 20 December 2013, https://clinicaltrials.gov/ct2/show/NCT02017340 EUDRACT Reference Number 2012-002764-27 Registered 04 February 2013, https://www.clinicaltrialsregister.eu/ctr-search/search?query=2012-002764-27.
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225.
  • Abdullahi, Maimuna, 1987, et al. (författare)
  • Kolonialitet, dekolonialt tänkande och socialt arbete
  • 2021
  • Ingår i: Dahlstedt, Magnus, Gruber, Sabine, Herz, Marcus och Lalander, Philip (2021). Socialt arbete - rörelser, motstånd, förändring. Studentlitteratur.. - Lund : Studentlitteratur. - 9789144143163
  • Bokkapitel (refereegranskat)abstract
    • Introduktion till maktens kolonialitet och dekolonialt tänkande inom socialt arbete
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226.
  • Abdulle, Sahra, 1970, et al. (författare)
  • Cerebrospinal fluid viral load and intrathecal immune activation in individuals infected with different HIV-1 genetic subtypes
  • 2008
  • Ingår i: PLoS ONE. - : Public Library of Science (PLoS). - 1932-6203. ; 3:4
  • Tidskriftsartikel (refereegranskat)abstract
    • BACKGROUND: HIV-1 exhibits a high degree of genetic diversity and is presently divided into 3 distinct HIV-1 genetic groups designated major (M), non-M/non-O (N) and outlier (O). Group M, which currently comprises 9 subtypes (A-D, F-H, J and K), at least 34 circulating recombinant forms (CRFs) and several unique recombinant forms (URFs) is responsible for most of the HIV-1 epidemic. Most of the current knowledge of HIV-1 central nervous system (CNS) infection is based on subtype B. However, subtypes other than subtype B account for the majority of global HIV-1 infections. Therefore, we investigated whether subtypes have any influence on cerebrospinal fluid (CSF) markers of HIV-1 CNS infection. METHODOLOGY/PRINCIPAL FINDINGS: CSF HIV-1 RNA, CSF neopterin and CSF white blood cell (WBC) count were measured in patients infected with different HIV-1 subtypes. Using multivariate regression analysis, no differences in the CSF WBC count, neopterin and viral load were found between various HIV-1 subtypes. CONCLUSIONS: We did not find any subtype-dependent differences in the markers evaluated in this study.
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227.
  • Abdulle, Sahra, 1970, et al. (författare)
  • Continuing intrathecal immunoactivation despite two years of effective antiretroviral therapy against HIV-1 infection
  • 2002
  • Ingår i: Aids. ; 16:16, s. 2145-9
  • Tidskriftsartikel (refereegranskat)abstract
    • OBJECTIVE: To study the effect of antiretroviral combination treatment on intrathecal immunoactivation in HIV-1 infection. METHOD: Lumbar punctures were performed at baseline, and after 4 months, 1 and 2 years on 30 neurologically asymptomatic, treatment-naive HIV-1-infected patients started on antiretroviral treatment with three or more drugs. Levels of neopterin, beta2-microglobulin and HIV-1 RNA were measured in cerebrospinal fluid (CSF) and blood. RESULTS: All patients continued the study until the 4-month follow-up, although seven discontinued before the 1-year control, and an additional five discontinued before the control after 2 years. Neopterin, beta2-microglobulin and HIV-1 RNA decreased significantly both in CSF and blood, but although 100% of the patients decreased their CSF concentrations of beta2-microglobulin and HIV-1 RNA to normal levels, only 55% had normal CSF neopterin concentrations after 2 years treatment. CONCLUSIONS: In addition to CSF viral load, antiretroviral combination therapy substantially decreases the intrathecal immunoactivation as reflected by CSF neopterin and beta2-microglobulin in neuroasymptomatic HIV-1-infected patients. However, almost half of the patients still have slightly increased CSF neopterin concentrations after 2 years of effective treatment, which might reflect an ongoing low-grade viral replication in brain tissue.
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228.
  • Abdulle, Sahra, 1970, et al. (författare)
  • CSF neurofilament protein (NFL) - a marker of active HIV-related neurodegeneration.
  • 2007
  • Ingår i: Journal of neurology. - : Springer Science and Business Media LLC. - 0340-5354 .- 1432-1459. ; 254:8, s. 1026-32
  • Tidskriftsartikel (refereegranskat)abstract
    • BACKGROUND AND METHODS : The light subunit of the neurofilament protein (NFL), a major structural component of myelinated axons, is a sensitive indicator of axonal injury in the central nervous system (CNS) in a variety of neurodegenerative disorders. Cerebrospinal fluid (CSF) NFL concentrations were measured by ELISA (normal < 250 ng/l) in archived samples from 210 HIV-infected patients not taking antiretroviral treatment: 55 with AIDS dementia complex (ADC), 44 with various CNS opportunistic infections/tumours (CNS OIs), 95 without neurological symptoms or signs, and 16 with primary HIV infection (PHI). The effect of highly active antiretroviral treatment (HAART) was studied by repeated CSF sampling in four of the ADC patients initiating treatment. RESULTS : CSF NFL concentrations were significantly higher in patients with ADC (median 2590 ng/l, IQR 780-7360) and CNS OIs (2315 ng/l, 985-7390 ng/l) than in neuroasymptomatic patients (<250 ng/l, <250-300) or PHI (<250 ng/l, <250-280), p < 0.001. Among patients with ADC, those with more severe disease (stage 2-4) had higher levels than those with milder disease (stage 0.5-1), p < 0.01. CSF NFL declined during HAART to the limit of detection in parallel with virological response and neurological improvement in ADC.CSF NFL concentrations were higher in neuroasymptomatic patients with lower CD4-cell strata than higher, p < 0.001. This increase was less marked than in the ADC patients and noted in 26/58 neuroasymptomatic patients with CD4 counts <200/mul compared to 1/37 with CD4-cells >/=200/mul. CONCLUSIONS : The findings of this study support the value of CSF NFL as a useful marker of ongoing CNS damage in HIV infection. Markedly elevated CSF NFL concentrations in patients without CNS OIs are associated with ADC, follow the grade of severity, and decrease after initiation of effective antiretroviral treatment. Nearly all previously suggested CSF markers of ADC relate to immune activation or HIV viral load that do not directly indicate brain injury. By contrast NFL is a sensitive marker of such injury, and should prove useful in evaluating the presence and activity of ongoing CNS injury in HIV infection.
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229.
  • Abdulle, Sahra, 1970, et al. (författare)
  • Effects of antiretroviral treatment on blood-brain barrier integrity and intrathecal immunoglobulin production in neuroasymptomatic HIV-1-infected patients.
  • 2005
  • Ingår i: HIV medicine. - : Wiley. - 1464-2662 .- 1468-1293. ; 6:3, s. 164-9
  • Tidskriftsartikel (refereegranskat)abstract
    • OBJECTIVES: To study the effect of antiretroviral combination therapy on blood-brain barrier (BBB) integrity and intrathecal immunoglobulin G (IgG) production. METHODS: Lumbar punctures were performed on 38 neurologically asymptomatic, treatment-naive HIV-1-infected patients prior to and during treatment at intervals of approximately 4 months, 1 year and 2 years. Albumin ratio and IgG index were analysed as markers of BBB integrity and intrathecal IgG synthesis. RESULTS: HIV-1 RNA decreased to < 50 HIV-1 RNA copies/mL in the cerebrospinal fluid (CSF) of all patients and in the plasma of all but one patient. Only 5% of patients had elevated albumin ratio values at baseline, while 56% had an elevated IgG index. There was no significant reduction of the albumin ratio or the IgG index. After 2 years of treatment all patients had normal albumin ratio values, while 41% still had increased IgG index levels. CONCLUSIONS: Up to 2 years after the initiation of treatment, the favourable impact of antiretroviral combination treatment on CSF viral load was not accompanied by a similar reduction of intrathecal IgG production. BBB function, measured as the albumin ratio, was not significantly changed in this cohort of neurologically asymptomatic HIV-1-infected patients.
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230.
  • Abdulle, Sahra, 1970, et al. (författare)
  • Family support is important for adherence to antiretroviral therapy among HIV positive mothers in Dar es Salaam, Tanzania.
  • 2019
  • Ingår i: CLINICAL MICROBIOLOGY AND RESEARCH. ; 1:1, s. 1-3
  • Tidskriftsartikel (refereegranskat)abstract
    • Adherence to antiretroviral treatment (ART) is of utmost importance to reduce the risk of vertical transmission of HIV. We enrolled 106 patients from two Prevention of mother-to-child transmission (PMTCT) clinics in Dar es Salaam in September- November 2016. Study participants were given structured standardized questionnaires regarding their self-estimated adherence and barriers and enablers to adherence. Good adherence was defined as taking ≥95% of the pills as prescribed. About 70% of the participants achieved this level of adherence. The odds ratios for poor adherence among women with medium and poor family support were 5.69 (95% CI: 1.36-23-75) and 6.86 (95% CI: 1.89-24.96) respectively compared to good support. A large portion of the women failed to reach the high set limit for adherence. Increased spousal involvement and support could help many women to achieve good adherence.
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