| 1. |
- Carlander, C., et al.
(författare)
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Employment by HIV status, mode of HIV transmission and migrant status: a nation-wide population-based study
- 2021
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Ingår i: Aids. - : Ovid Technologies (Wolters Kluwer Health). - 0269-9370 .- 1473-5571. ; 35:1, s. 115-123
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Tidskriftsartikel (refereegranskat)abstract
- Objective: To compare employment in people by HIV status, mode of HIV transmission and migrant status. Design: Nation-wide population-based register data from 1996 to 2016. Methods: All people born between 1940 and 2000 (n = 8587 629) were identified from the Swedish Total Population Register and linked to the Swedish National HIV Register (n = 9492) and Longitudinal Integration Database for Health Insurance and Labour Market Studies. Adjusted prevalence ratios (adjPR) of employment were calculated using Poisson regression. Trends in employment were illustrated in scatterplots with overlaid prediction plots. Results: People with HIV were less likely employed than HIV-negative but with decreasing difference over time [adjPR 0.57, 95% confidence interval (CI) 0.54-0.60 in 1996, adjPR 0.84, 95% CI 0.83-0.86 in 2016]. Female migrants with HIV had the highest increase of employment over time and were more likely employed than HIV-negative female migrants by end of follow-up (adjPR 1.12, 95% CI 1.08-1.16). Swedish-born with present/former intravenous drug use had the lowest employment rates. Individuals with undetectable HIV-RNA viral levels showed higher employment rates (adjPR 1.29, 95% CI 1.20-1.38) compared with those with detectable viral levels. Conclusion: Employment in people living with HIV (PLWH) increased over time but remained lower than for HIV-negative people. HIV was not associated with lower employment in migrants by end of follow-up, indicating that HIV is not a barrier for employment among migrants in Sweden. The heterogeneity of PLWH needs to be taken into account in interventions, and future studies, focusing on access to the labour market in PLWH.
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| 2. |
- Carlander, C., et al.
(författare)
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HPV Types in Cervical Precancer by HIV Status and Birth Region: A Population-Based Register Study
- 2020
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Ingår i: Cancer Epidemiology Biomarkers & Prevention. - 1055-9965. ; 29:12, s. 2662-2668
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Tidskriftsartikel (refereegranskat)abstract
- Background: Data are lacking regarding which human papillomavirus (HPV) types cause high-grade cervical neoplasia (CIN2+) in people with HIV in Europe. We assessed which HPV types are associated with CIN2+ in women living in Sweden by HIV status. Methods: The Swedish National HIV Registry, the Swedish Population Registry, and the Swedish National Cervical Screening Registry were linked. CIN2+ tissue blocks of 130 women living with HIV (WLWH) and 234 HIV-negative women, matched for country of birth (1:2), were retrieved from bio-banks and HPV genotyped. Adjusted ORs (adjOR), stratified by country of birth, were calculated using conditional logistic regression. Matching was broken for cross-group comparisons. Results: WLWH with CIN2 were less likely to have HPV16 [14% vs. 40%; adjOR 0.1; 95% confidence interval (CI), 0.04-0.56] than HIV-negative women, but among women with CIN3, there was no difference in HPV16 prevalence by HIV status (adjOR 0.9; 95% CI, 0.51-1.70). WLWH were six times more likely to have HPV35 in CIN3 than HIV-negative women (adjOR 6.2; 95% CI, 1.3-30.4). WLWH from sub-Saharan Africa (SSA) had less 9-valent vaccine types, compared with both HIV-negative women born in Sweden (adjOR 0.1; 95% CI, 0.02-0.44) and WLWH born in Sweden (adjOR 0.1; 95% CI, 0.01-0.73), mostly because of decreased HPV16 and increased HPV35. Conclusions: WLWH from SSA were less likely to be covered by the 9-valent vaccine, mostly due to less HPV16 and more HPV35. Impact: This could have implications for HPV vaccines, currently not including HPV35, and for HPV-screening algorithms in women with origin from SSA.
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| 3. |
- Mahajan, Anubha, et al.
(författare)
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Trans-ethnic Fine Mapping Highlights Kidney-Function Genes Linked to Salt Sensitivity
- 2016
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Ingår i: American Journal of Human Genetics. - : Elsevier BV. - 0002-9297 .- 1537-6605. ; 99:3, s. 636-646
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Tidskriftsartikel (refereegranskat)abstract
- We analyzed genome-wide association studies (GWASs), including data from 71,638 individuals from four ancestries, for estimated glomerular filtration rate (eGFR), a measure of kidney function used to define chronic kidney disease (CKD). We identified 20 loci attaining genome-wide-significant evidence of association (p < 5 × 10(-8)) with kidney function and highlighted that allelic effects on eGFR at lead SNPs are homogeneous across ancestries. We leveraged differences in the pattern of linkage disequilibrium between diverse populations to fine-map the 20 loci through construction of "credible sets" of variants driving eGFR association signals. Credible variants at the 20 eGFR loci were enriched for DNase I hypersensitivity sites (DHSs) in human kidney cells. DHS credible variants were expression quantitative trait loci for NFATC1 and RGS14 (at the SLC34A1 locus) in multiple tissues. Loss-of-function mutations in ancestral orthologs of both genes in Drosophila melanogaster were associated with altered sensitivity to salt stress. Renal mRNA expression of Nfatc1 and Rgs14 in a salt-sensitive mouse model was also reduced after exposure to a high-salt diet or induced CKD. Our study (1) demonstrates the utility of trans-ethnic fine mapping through integration of GWASs involving diverse populations with genomic annotation from relevant tissues to define molecular mechanisms by which association signals exert their effect and (2) suggests that salt sensitivity might be an important marker for biological processes that affect kidney function and CKD in humans.
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| 4. |
- Ahadi, Aylin, et al.
(författare)
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Implementation and evaluation of a binary mixture model and three-dimensional FE-analysis of water saturated soil
- 2006
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Ingår i: ECCOMAS CFD 2006: Proceedings of the European Conference on Computational Fluid Dynamics. - 9090209700
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Konferensbidrag (refereegranskat)abstract
- A binary mixture model for soils has been formulated and analyzed. In the model one of the constituents is soil and the other constituent an incompressible liquid. The effects of water are included by formulating a mixture model is formulated as an extension of an existing non-associated elasto-plastic material model for granular materials. This paper is focused on the balance of momentum equations of the mixture model, primarily to avoid the difficulties arising when the interaction terms between the constituents needs to be formulated and constituted. Considering the momentum balance of the mixture as an extension of the balance equation of the soil constituent, it is supplemented with body forces, stresses and flow effects from the water constituent. These supplemented terms are evaluated and analyzed. An alternative way of deriving equation of motion for the fluid is also presented. The computer algorithm for integrating the constitutive relation of dry sand is supplemented and numerical simulations with a finite element code are carried out. It is shown that although the mixture model consists of two constituents, it is possible to include the existence of voids and a system with three constituents, i.e. water unsaturated soil, can be analyzed. Results from single element tests and simulations of a flexible footing resting on a surface of water saturated sand are presented.
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| 5. |
- Al-Rabadi, Laith Farah, et al.
(författare)
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Serine Protease HTRA1 as a Novel Target Antigen in Primary Membranous Nephropathy
- 2021
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Ingår i: Journal of the American Society of Nephrology. - : American Society of Nephrology (ASN). - 1046-6673 .- 1533-3450. ; 32:7, s. 1666-1681
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Tidskriftsartikel (refereegranskat)abstract
- Background Identification of target antigens PLA2R, THSD7A, NELL1, or Semaphorin-3B can explain the majority of cases of primary membranous nephropathy (MN). However, target antigens remain unidentified in 15%-20% of patients. Methods A multipronged approach, using traditional and modern technologies, converged on a novel target antigen, and capitalized on the temporal variation in autoantibody titer for biomarker discovery. Immunoblotting of human glomerular proteins followed by differential immunoprecipitation and mass spectrometric analysis was complemented by laser-capture microdissection followed by mass spectrometry, elution of immune complexes from renal biopsy specimen tissue, and autoimmune profiling on a protein fragment microarray. Results These approaches identified serine protease HTRA1 as a novel podocyte antigen in a subset of patients with primary MN. Sera from two patients reacted by immunoblotting with a 51-kD protein within glomerular extract and with recombinant human HTRA1, under reducing and nonreducing conditions. Longitudinal serum samples from these patients seemed to correlate with clinical disease activity. As in PLA2R- and THSD7A- associated MN, anti-HTRA1 antibodies were predominantly IgG4, suggesting a primary etiology. Analysis of sera collected during active disease versus remission on protein fragment microarrays detected significantly higher titers of anti-HTRA1 antibody in active disease. HTRA1 was specifically detected within immune deposits of HTRA1-associated MN in 14 patients identified among three cohorts. Screening of 118 "quadruple-negative" (PLA2R-, THSD7A-, NELL1-, EXT2-negative) patients in a large repository of MN biopsy specimens revealed a prevalence of 4.2%. Conclusions Conventional and more modern techniques converged to identify serine protease HTRA1 as a target antigen in MN.
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| 6. |
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| 7. |
- Carlander, C., et al.
(författare)
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Assessing cervical intraepithelial neoplasia as an indicator disease for HIV in a low endemic setting: a population-based register study
- 2017
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Ingår i: Bjog-an International Journal of Obstetrics and Gynaecology. - : Wiley. - 1470-0328 .- 1471-0528. ; 124:11, s. 1680-1687
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Tidskriftsartikel (refereegranskat)abstract
- Objectives To analyse whether the prevalence of undiagnosed HIV among (1) all women in Sweden and (2) migrant women, diagnosed with cervical intraepithelial neoplasia grade 2 or worse CIN2+ reaches the threshold of 0.1%, which has been suggested to be cost-effective for HIV testing. Design Population-based register study. Setting Counties of Stockholm and Gothenburg, Sweden, 1990-2014. Population All women, born between 1940 and 1990, with at least one cervical cytology or histology registered in the Swedish National Cervical Screening Register (NKCx). Methods Data were collected from the NKCx and the Swedish National HIV register. The proportion of women with undiagnosed HIV among women with CIN2+ compared with women with a normal/mildly abnormal cytology/histology was assessed. Results The proportion of undiagnosed HIV was higher among all women with CIN2+ than among those without CIN2+: 0.06% (95% CI 0.04-0.08) versus 0.04% (95% CI 0.04-0.04); P = 0.017). Among migrant women, the proportion of undiagnosed HIV was higher among those with CIN2+ than among those without [0.30% (95% CI 0.20-0.43) versus 0.08% (95% CI 0.07-0.10); P < 0.001] and exceeded 0.1%, suggesting the cost-effectiveness of HIV testing. Women with undiagnosed HIV at the time of CIN2+ had a significantly lower nadir CD4+ T-cell count, as a measure of immunosuppression, compared with women without CIN2+ before HIV diagnosis ( median nadir CD4, 95 cells/mm(3) versus 210 cells/mm(3); P < 0.01). Conclusions HIV testing should be performed in migrant women with unknown HIV status diagnosed with CIN2+.
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| 8. |
- Yilmaz, Aylin, 1974, et al.
(författare)
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Darunavir concentrations in cerebrospinal fluid and blood in HIV-1-infected individuals
- 2009
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Ingår i: AIDS Research and Human Retroviruses. - 0889-2229. ; 25:4, s. 457-61
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Tidskriftsartikel (refereegranskat)abstract
- Darunavir is the most recently licensed protease inhibitor currently used in treatment-experienced HIV-infected individuals. Our objective was to determine darunavir concentrations in cerebrospinal fluid (CSF) and plasma in subjects receiving antiretroviral treatment regimens containing ritonavir-boosted darunavir. Darunavir concentrations were determined by liquid chromatography tandem mass spectrometry in 14 paired CSF and plasma samples from eight HIV-1-infected individuals. The lower limit of quantification was 5.0 ng=ml. All of the 14 CSF samples had detectable darunavir concentrations with a median darunavir concentration of 34.2 ng=ml (range 15.9–212.0 ng=ml). The median (range) plasma darunavir concentration was 3930 (1800–12900) ng=ml. All CSF samples had detectable darunavir concentrations. Most of them exceeded or were in the same range as levels needed to inhibit replication of wild type virus, making it probable that darunavir, at least to some extent, contributes to the suppression of HIV replication in the central nervous system.
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