| 1. |
- Almung, Magnus, et al.
(författare)
-
I solitärens skugga : Nyttobyggnadens kreativa restaurering
- 2015
-
Rapport (populärvet., debatt m.m.)abstract
- Ekonomibyggnader har alltid behövts för de huvudbyggnader som finns inom våra bevarade kulturmiljöer. Några nyttobyggnader uppskattas och används fortfarande, andra betraktas som problematiska överloppsbyggnader, många rivs. Alltför få har dokumenterats eller fått sin historia klarlagd vilket undanhållit viktig kunskap om samhällets framväxt. Vi vill synliggöra och betona vikten av att bevara och utveckla hela bebyggelsemiljöer, ofta med ett antal hus utöver huvudbyggnaden och tillhörande yttre miljö i staden eller på landet. Denna rapport visar kursdeltagarnas projektarbeten om nyttobyggnader. De har dokumenterat med traditionella och nya arbetsmetoder, inventerat och intervjuat, läst och besökt arkiv, värderat, analyserat och därefter föreslagit hur man ska ta hand om och utveckla nyttobyggnaderna i sina kulturmiljöer.
|
|
| 2. |
|
|
| 3. |
- Pandzic, Tatjana, et al.
(författare)
-
Somatic PRDM2 c.4467delA mutations in colorectal cancers control histone methylation and tumor growth
- 2017
-
Ingår i: Oncotarget. - : Impact Journals, LLC. - 1949-2553. ; 8:58, s. 98646-98659
-
Tidskriftsartikel (refereegranskat)abstract
- The chromatin modifier PRDM2/RIZ1 is inactivated by mutation in several forms of cancer and is a putative tumor suppressor gene. Frameshift mutations in the C-terminal region of PRDM2, affecting (A)8 or (A)9 repeats within exon 8, are found in one third of colorectal cancers with microsatellite instability, but the contribution of these mutations to colorectal tumorigenesis is unknown. To model somatic mutations in microsatellite unstable tumors, we devised a general approach to perform genome editing while stabilizing the mutated nucleotide repeat. We then engineered isogenic cell systems where the PRDM2 c.4467delA mutation in human HCT116 colorectal cancer cells was corrected to wild-type by genome editing. Restored PRDM2 increased global histone 3 lysine 9 dimethylation and reduced migration, anchorage-independent growth and tumor growth in vivo. Gene set enrichment analysis revealed regulation of several hallmark cancer pathways, particularly of epithelial-to-mesenchymal transition (EMT), with VIM being the most significantly regulated gene. These observations provide direct evidence that PRDM2 c.4467delA is a driver mutation in colorectal cancer and confirms PRDM2 as a cancer gene, pointing to regulation of EMT as a central aspect of its tumor suppressive action.
|
|
| 4. |
- Bergman, Erik, et al.
(författare)
-
BERT based natural language processing for triage of adverse drug reaction reports shows close to human-level performance
- 2023
-
Ingår i: PLOS Digital Health. - : Public Library of Science (PLoS). - 2767-3170. ; 2:12
-
Tidskriftsartikel (refereegranskat)abstract
- Post-marketing reports of suspected adverse drug reactions are important for establishing the safety profile of a medicinal product. However, a high influx of reports poses a challenge for regulatory authorities as a delay in identification of previously unknown adverse drug reactions can potentially be harmful to patients. In this study, we use natural language processing (NLP) to predict whether a report is of serious nature based solely on the free-text fields and adverse event terms in the report, potentially allowing reports mislabelled at time of reporting to be detected and prioritized for assessment. We consider four different NLP models at various levels of complexity, bootstrap their train-validation data split to eliminate random effects in the performance estimates and conduct prospective testing to avoid the risk of data leakage. Using a Swedish BERT based language model, continued language pre-training and final classification training, we achieve close to human-level performance in this task. Model architectures based on less complex technical foundation such as bag-of-words approaches and LSTM neural networks trained with random initiation of weights appear to perform less well, likely due to the lack of robustness that a base of general language training provides.
|
|
| 5. |
- Bergquist, Helen, 1979-, et al.
(författare)
-
Structure-Specific Recognition of Friedreich’s Ataxia (GAA)n Repeats by Benzoquinoquinoxaline Derivatives
- 2009
-
Ingår i: ChemBioChem. - : Wiley. - 1439-4227 .- 1439-7633. ; 10:16, s. 2629-2637
-
Tidskriftsartikel (refereegranskat)abstract
- Expansion of GAA triplet repeats in intron 1 of the FXN gene reduces frataxin expression and causes Friedreich's ataxia. (GAA)nrepeats form non-B-DNA structures, including triple helix H-DNA and higher-order structures (sticky DNA). In the proposed mechanisms of frataxin gene silencing, central unanswered questions involve the characterization of non-B-DNA structure(s) that are strongly suggested to play a role in frataxin expression. Here we examined (GAA)nbinding by triplex-stabilizing benzoquinoquinoxaline (BQQ) and the corresponding triplex-DNA-cleaving BQQ-1,10-phenanthroline (BQQ-OP) compounds. We also examined the ability of these compounds to act as structural probes for H-DNA formation within higher-order structures at pathological frataxin sequences in plasmids. DNA-complex-formation analyses with a gel-mobility-shift assay and sequence-specific probing of H-DNA-forming (GAA)nsequences by single-strand oligonucleotides and triplex-directed cleavage demonstrated that a parallel pyrimidine (rather than purine) triplex is the more stable motif formed at (GAA)nrepeats under physiologically relevant conditions.
|
|
| 6. |
- Björk, Jonas, et al.
(författare)
-
Accuracy of GFR estimating equations combining standardized cystatin C and creatinine assays: a cross-sectional study in Sweden
- 2015
-
Ingår i: Clinical Chemistry and Laboratory Medicine. - : Walter de Gruyter GmbH. - 1434-6621 .- 1437-4331. ; 53:3, s. 403-414
-
Tidskriftsartikel (refereegranskat)abstract
- Background: The recently established international cystatin C calibrator makes it possible to develop non-laboratory specific glomerular filtration rate (GFR) estimating (eGFR) equations. This study compares the performance of the arithmetic mean of the revised Lund-Malmo creatinine and CAPA cystatin C equations (MEAN(LM-REV+CAPA)), the arithmetic mean of the Chronic Kidney Disease Epidemiology Collaboration equation (CKD-EPI) creatinine and cystatin C equations (MEAN(CKD-EPI)), and the composite CKD-EPI equation (CKD-EPICREA+CYSC) with the corresponding single marker equations using internationally standardized calibrators for both cystatin C and creatinine. Methods: The study included 1200 examinations in 1112 adult Swedish patients referred for measurement of GFR (mGFR) 2008-2010 by plasma clearance of iohexol (median 51 mL/min/1.73 m(2)). Bias, precision (interquartile range, IQR) and accuracy (percentage of estimates +/- 30% of mGFR; P-30) were compared. Results: Combined marker equations were unbiased and had higher precision and accuracy than single marker equations. Overall results of MEAN(LM-REV+CAPA)/MEAN(CKD-EPI)/CKD-EPICREA+CYSC were: median bias -2.2%/-0.5%/-1.6%, IQR 9.2/9.2/8.8 mL/min/1.73 m(2), and P-30 91.3%/91.0%/91.1%. The P-30 figures were about 7-14 -percentage points higher than the single marker equations. The combined equations also had a more stable performance across mGFR, age and BMI intervals, generally with P-30 >= 90% and never <80%. Combined equations reached P-30 of 95% when the difference between eGFR(CREA) and eGFR(CYSC) was <10% but decreased to 82% at a difference of >= 40%. Conclusions: Combining cystatin C and creatinine assays improves GFR estimations with P-30 >= 90% in adults. Reporting estimates of both single and combined marker equations in clinical settings makes it possible to assess the validity of the combined equation based on the agreement between the single marker equations.
|
|
| 7. |
- Blomqvist, Kerstin, 1953-, et al.
(författare)
-
What happens when you involve patients as experts? : a participatory action research project at a renal failure unit
- 2010
-
Ingår i: Nursing Inquiry. - 1320-7881 .- 1440-1800. ; 17:4, s. 317-323
-
Tidskriftsartikel (refereegranskat)abstract
- Although there is a trend towards developing health care in a patient-centred direction, changes are usually planned by the professionals without involving the patients. This paper presents an ongoing participatory action research project where patients with chronic renal failure, nurses at a specialist renal failure unit, a hospital manager and a researcher worked together to develop patient-centred care. The project combined the expertise of patients in their own experiences of living with a chronic condition with the professional expertise of nurses, the manager and the researcher. As the workload on the unit was uneven, the development work needed to be low in intensity but long-term. Based on a number of dialogues in focus groups, four main development areas were identified; access to test results, prerequisites for postponing the progress of the illness, general awareness and understanding of living with chronic renal failure, and family-focused care. A number of changes have been planned or implemented, such as developing a prototype for a web-based feed-back system, expanding patient education to newly diagnosed patients, steering the nurses' role towards a guiding and family-focused function, and planning a digital story-telling workshop. Involving committed people who have the mandate to change practices were prerequisites for success.
|
|
| 8. |
- Blomqvist, Kerstin, et al.
(författare)
-
What happens when you involve patients as experts? : a participatory action research project at a renal failure unit
- 2010
-
Ingår i: Nursing Inquiry. - : Wiley-Blackwell Publishing Ltd. - 1320-7881 .- 1440-1800. ; 17:4, s. 317-323
-
Tidskriftsartikel (refereegranskat)abstract
- Although there is a trend towards developing health care in a patient-centred direction, changes are usually planned by the professionals without involving the patients. This paper presents an ongoing participatory action research project where patients with chronic renal failure, nurses at a specialist renal failure unit, a hospital manager and a researcher worked together to develop patient-centred care. The project combined the expertise of patients in their own experiences of living with a chronic condition with the professional expertise of nurses, the manager and the researcher. As the workload on the unit was uneven, the development work needed to be low in intensity but long-term. Based on a number of dialogues in focus groups, four main development areas were identified; access to test results, prerequisites for postponing the progress of the illness, general awareness and understanding of living with chronic renal failure, and family-focused care. A number of changes have been planned or implemented, such as developing a prototype for a web-based feed-back system, expanding patient education to newly diagnosed patients, steering the nurses' role towards a guiding and family-focused function, and planning a digital story-telling workshop. Involving committed people who have the mandate to change practices were prerequisites for success.
|
|
| 9. |
- Che, Karlhans F, et al.
(författare)
-
HIV-1 impairs in vitro priming of naïve T cells and gives rise to contact-dependent suppressor T cells
- 2010
-
Ingår i: European Journal of Immunology. - : Wiley. - 0014-2980 .- 1521-4141. ; 40:8, s. 2248-2258
-
Tidskriftsartikel (refereegranskat)abstract
- Priming of T cells in lymphoid tissues of HIV-infected individuals occurs in the presence of HIV-1. DC in this milieu activate T cells and disseminate HIV-1 to newly activated T cells, the outcome of which may have serious implications in the development of optimal antiviral responses. We investigated the effects of HIV-1 on DC-naïve T-cell interactions using an allogeneic in vitro system. Our data demonstrate a dramatic decrease in the primary expansion of naïve T cells when cultured with HIV-1-exposed DC. CD4(+) and CD8(+) T cells showed enhanced expression of PD-1 and TRAIL, whereas CTLA-4 expression was observed on CD4(+) T cells. It is worth noting that T cells primed in the presence of HIV-1 suppressed priming of other naïve T cells in a contact-dependent manner. We identified PD-1, CTLA-4, and TRAIL pathways as responsible for this suppresion, as blocking these negative molecules restored T-cell proliferation to a higher degree. In conclusion, the presence of HIV-1 during DC priming produced cells with inhibitory effects on T-cell activation and proliferation, i.e. suppressor T cells, a mechanism that could contribute to the enhancement of HIV-1 pathogenesis.
|
|
| 10. |
- Davis, Hope C., et al.
(författare)
-
Time between anterior cruciate ligament injury and reconstruction and cartilage metabolism six-months following reconstruction
- 2018
-
Ingår i: Knee. - : Elsevier BV. - 0968-0160. ; 25:2, s. 296-305
-
Tidskriftsartikel (refereegranskat)abstract
- Background: To determine the association between time from injury to ACL reconstruction (TimeInjury-ACLR) and biochemical markers of cartilage metabolism and inflammation six months following ACL reconstruction (ACLR). Methods: Individuals with a unilateral ACL injury were enrolled at initial presentation in the orthopedic clinic; blood was collected six months following ACLR. Enzyme-linked immunosorbent assays were used to analyze the ratio of serum concentrations of type-II collagen breakdown (C2C) to synthesis (CPII), plasma matrix metalloproteinase-3 (MMP-3), interleukin-6 (IL-6), and serum aggrecan neoepitope (ARGS). We used separate linear regressions to assess associations between biochemical markers and TimeInjury-ACLR. Results: Twenty-two participants (50% females, mean [SD], age 21.9 [4.5] years old; BMI 23.8 [2.6] kg/m2) completed the study. TimeInjury-ACLR ranged from nine to 67days (31.0 [14.4days]). Greater TimeInjury-ACLR predicted greater serum C2C:CPII ratios six months following ACLR (C2C:CPII=0.15 [0.02], R2 =0.213, P=0.030). Males (R2 =0.733, P=0.001) but not females (R2 =0.030, P=0.609) demonstrated a significant association between greater C2C:CPII and TimeInjury-ACLR at the six-month follow-up exam. TimeInjury-ACLR did not associate with IL-6, MMP-3, or ARGS at six months. Conclusions: Greater time between injury and ACL reconstruction was associated with greater serum C2C:CPII six months following ACLR in males but not females, and IL-6, MMP-3, and ARGS levels were not associated with TimeInjury-ACLR in males or females. The time between ACL injury and ACLR may affect collagen metabolism in males and should be further investigated in a larger study along with other patient-relevant outcomes.
|
|
