| 1. |
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| 2. |
- Akselsson, Roland, et al.
(author)
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Luftföroreningar vid svetsning
- 1977
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Reports (other academic/artistic)abstract
- PIXE-analyser kan utföras med utvecklad analysuppställning med noggrannhet och precision av c:a 10 % och med hög analyskapacitet. Ett dataprogram för evaluering av räntgenspektra presenteras. Inverkan av provtjocklek vid PIXE-analys av inhomogena prov har studerats och korrektioner föreslås. Fluorinnehållet i filterprov har bestämts, samtidigt med PIXE-analys, genom utnyttjande av en kärnfysikalisk reaktion som ger resultat med god noggrannhet och precision. Svetsaerosoler har karakteriserats m.h.a. PIXE, ESCA och TEM/EDAX. En uppställning för insamling av svetsaerosoler under utveckling och hittillsvarande resultat indikerar representativ provinsamling med god reproducerbarhet.
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| 3. |
- Johansson, Carl-Johan, et al.
(author)
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Sågverksnytt nr 1
- 2013
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Reports (other academic/artistic)
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| 4. |
- Broliden, Per Anders, et al.
(author)
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Antithymocyte globulin and cyclosporine A as combination therapy for low-risk non-sideroblastic myelodysplastic syndromes
- 2006
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In: Haematologica. - 0390-6078 .- 1592-8721. ; 91:5, s. 667-670
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Journal article (peer-reviewed)abstract
- The present study evaluated the combination of antithymocyte globulin (ATG) and cyclosporine A (CsA) in patients with low-risk myelodysplastic syndromes. Twenty patients (17 with refractory anemia and 3 with refractory anemia with excess blasts) received treatment with rabbit-ATG plus CsA. The overall response rate was 30% (6/20); three of the six responders had a complete response. The responses lasted 2-58 months, with two patients still being in complete remission at 42 and 58 months. Short-lasting cytogenetic remissions were achieved in two patients. ATG was poorly tolerated in patients over 70 years of age. Four out of 20 patients progressed to acute myeloid leukemia within a year. We conclude that immunosuppressive treatment may be a therapeutic option for selected patients with myelodysplastic syndrome.
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| 5. |
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| 6. |
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| 7. |
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| 8. |
- Ellegård, Kajsa, 1951, et al.
(author)
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Reflective Production in the Final Assembly of Motor Vehicles - An Emerging Swedish Challenge
- 1992
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In: International Journal of Operations and Production Management. - 1758-6593 .- 0144-3577. ; 12:7/8, s. 117-133
-
Journal article (peer-reviewed)abstract
- Presents some theoretical principles and empirical evidence relating to the new Swedish production systems for final assembly of motor vehicles. Contends that in these production systems it is possible simultaneously to enhance efficiency and quality of working life. Briefly sketches three production forms as they apply to the final assembly of automobiles and discusses the societal environments in which these different forms of production have evolved. It focuses on Volvo Uddevalla plant as one of the main examples so far of a reflective production system for final assembly of automobiles. Amplifies the analysis of different production flow patterns for final assembly and in particular addresses the issue of semi‐parallel mechanistic production flow and parallel organic production flow as alternatives to serial flow on a conventional line assembly. A comment: This publication is authored together with e.g. senior research competencies (1) within vocational learning and training as well as (2) within time-geography with whom Engström have had long time cooperation procedures. But also personal at our department/research group (Mats Johansson) well as our knowledgeable contact person (Bertil Johansson) within Volvo contributed (he has really helped us out for decades and was responsible for the continuous contacts with Volvo in most any matter).
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| 9. |
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| 10. |
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| 11. |
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| 12. |
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| 13. |
- Lannefors, Hans, et al.
(author)
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Aerosolsammansättning i ett renluftsområde
- 1979
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Reports (other academic/artistic)abstract
- Aerosolsammansättningen i ett renluftsområde i Mellansverige (Velen) har studerats under en årscykel. Aerosolpartiklarna har uppdelats efter aerodynamisk storlek i 7 fraktioner. Varje fraktion från 113 provtagningstillfällen har analyserats m a p svavel och tungmetaller m h a partikelinducerad röntgenstrålning s k PIXE-analys. Resultaten påvisar variationer i ämneskoncentrationer mellan enskilda mättillfällen omspännande två storleks ordningar. Årsmedelkoncentrationerna ligger på samma nivå som i rural miljö i Bolivia, Canada, Norge och Schweiz. Jämfört med motsvarande koncentrationer i urban miljö (Köpenhamn m fl storstäder) är tungmetallkoncentrationerna en till två storleksordningar (svavelkoncentrationen endast en faktor tre) lägre i Velen. Inga påtagliga säsongsvariationer kunder spåras varken för antropogent eller naturligt bildade ämnen. Klassificering av mättillfällena efter luftmassans historia kunde förklara mycket av de stora koncentrationsvariationerna. Grundämneskoncentrationerna var mellan en faktor 2 och 10 högre i luftmassor som kom från den europeiska kontinenten eller Storbritannien jämfört med de som kom norrifrån. Lägst var koncentrationerna i luftmassor som kom från Nordatlanten eller Norska Havet. Svavelkoncentrationerna visade störst beroende av luftmassans historia.
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| 14. |
- Lazarevic, Vladimir, et al.
(author)
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Failure matters : unsuccessful cytogenetics and unperformed cytogenetics are associated with a poor prognosis in a population-based series of acute myeloid leukaemia
- 2015
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In: European Journal of Haematology. - Hoboken, USA : Wiley-Blackwell. - 0902-4441 .- 1600-0609. ; 94:5, s. 419-423
-
Journal article (peer-reviewed)abstract
- Unsuccessful cytogenetics (UC) in patients with acute myeloid leukaemia (AML) treated on different SWOG trials was recently reported to be associated with increased age and dismal outcome. To ascertain whether this holds true also in unselected patients with AML, we retrieved all cytogenetic reports in cases from the population-based Swedish AML Registry. Between 1997 and 2006, 1737 patients below 80 yr of age without myelosarcoma or acute promyelocytic leukaemia received intensive treatment. The frequencies of UC and unperformed cytogenetics (UPC) were 2.1% and 20%, respectively. The early death rates differed between the cytogenetic subgroups (P = 0.006) with the highest rates in patients with UC (14%) and UPC (12%) followed by high-risk (HR) AML, intermediate risk (IR) and standard risk (SR) cases successfully karyotyped (8.6%, 5.9%, and 5.8%, respectively). The complete remission rate was lower in UC and UPC and HR compared with the other risk groups (P < 0.001). The overall five-year survival rates were 25% for UC and 22% for UPC, whereas the corresponding frequencies for SR, IR and HR AML patients without UC and UPC were 64%, 31% and 15%, respectively. In conclusion, lack of cytogenetic data translates into a poor prognosis.
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| 15. |
- Lazarevic, Vladimir, et al.
(author)
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Incidence and prognostic significance of karyotypic subgroups in older patients with acute myeloid leukemia: the Swedish population-based experience
- 2014
-
In: Blood Cancer Journal. - London, United Kingdom : Nature Publishing Group: Open Access Journals - Option B / Nature Publishing Group. - 2044-5385. ; 4:e188
-
Journal article (peer-reviewed)abstract
- The Swedish population-based acute myeloid leukemia registry contains data from 3251 patients (excluding acute promyelocytic leukemia) diagnosed between 1997 and 2006. Informative cytogenetic data from 1893 patients were retrospectively added, including 1054 patients aged between 60 and 79 years. Clonal abnormalities were found in 57% of the informative karyotypes. Karyotypic patterns differed by age: t(8; 21), inv(16) and t(11q23) were more common in younger patients, whereas loss of 5q, 7q and 17p, monosomal karyotype (MK) and complex karyotypes were more common in older patients. Loss of 5q, 7q and 17p often occurred together within MK. Patients with greater than= 5 chromosome abnormalities had worse overall survival than those with fewer abnormalities or normal karyotype in all age groups. Loss of 5q, 7q and/or 17p had, in contrast to MK, a further negative impact on survival. Multivariable Cox regression analyses on risk factors in patients less than80 years with cytogenetic abnormalities and intensive treatment revealed that age and performance status had the most significant impact on survival (both Pless than0.001), followed by sex (P = 0.0135) and a karyotype including - 7/del(7q) (P = 0.048).
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| 16. |
- Lazarevic, Vladimir, et al.
(author)
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Prognostic significance of high hyperdiploid and triploid/tetraploid adult acute myeloid leukemia
- 2015
-
In: American Journal of Hematology. - : WILEY-BLACKWELL. - 0361-8609 .- 1096-8652. ; 90:9, s. 800-805
-
Journal article (peer-reviewed)abstract
- To ascertain the clinical implications of high hyperdiploid (HH; 49-65 chromosomes) and triploid/tetraploid (TT; greater than65 chromosomes) adult acute myeloid leukemia (AML), all such cases were retrieved from the Swedish AML Registry. Of the 3,654 cytogenetically informative cases diagnosed between January 1997 and May 2014, 68 (1.9%) were HH (n=50)/TT (n=18). Patients with HH/TT were older than those with intermediate risk (IR) AML (median 71 years vs. 67 years; P=0.042) and less often had de novo AML (63% vs. 79%; P=0.004); no such differences were observed between HH/TT and complex karyotype (CK) AML. The overall survival (OS) was similar between patients with HH/TT and CK AML (median 0.9 years vs. 0.6 years; P=0.082), whereas OS was significantly longer (median 1.6 years; P=0.028) for IR AML. The OS was shorter for cases with HH than with TT (median 0.6 years vs. 1.4 years; P=0.032) and for HH/TT AMLs with adverse abnormalities (median 0.8 years vs. 1.1 years; P=0.044). In conclusion, HH/TT AML is associated with a poor outcome, but chromosome numbers greater than65 and absence of adverse aberrations seem to translate into a more favorable prognosis. Thus, HH/TT AMLs are clinically heterogeneous and should not automatically be grouped as high risk.Am. J. Hematol. 90:800-805, 2015. (c) 2015 Wiley Periodicals, Inc.
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| 17. |
- Lj Lazarevic, Vladimir, et al.
(author)
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Incidence and prognostic significance of isolated trisomies in adult acute myeloid leukemia : A population-based study from the Swedish AML registry
- 2017
-
In: European Journal of Haematology. - : John Wiley & Sons. - 0902-4441 .- 1600-0609. ; 98:5, s. 493-500
-
Journal article (peer-reviewed)abstract
- OBJECTIVES AND METHODS: To ascertain the incidence/clinical implications of isolated autosomal trisomies in adult acute myeloid leukemia (AML), all such cases were retrieved from the Swedish AML Registry.RESULTS: Of the 3179 cytogenetically informative AMLs diagnosed January 1997-May 2015, 246 (7.7%) had isolated trisomies. The frequency increased by age (2.4% at age 18-60 years vs. 23% at >60 years; P<.0001); the median age was 69 years. The five most common were +8 (4.0%), +13 (0.9%), +11 (0.8%), +21 (0.7%), and +4 (0.5%). Age and gender, types of AML and treatment, and complete remission and early death rates did not differ between the single trisomy and the intermediate risk (IR) groups or among cases with isolated gains of chromosomes 4, 8, 11, 13, or 21. The overall survival (OS) was similar in the single trisomy (median 1.6 years) and IR groups (1.7 years; P=.251). The OS differed among the most frequent isolated trisomies; the median OS was 2.5 years for +4, 1.9 years for +21, 1.5 years for +8, 1.1 years for +11, and 0.8 years for +13 (P=.013).CONCLUSION: AML with single trisomies, with the exception of +13, should be grouped as IR.
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| 18. |
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| 19. |
- Melin-Johansson, Christina, et al.
(author)
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Significant improvement in quality of life of patients with incurable cancer after designation to a palliative homecare team
- 2010
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In: European Journal of Cancer Care. - : Hindawi Limited. - 0961-5423 .- 1365-2354. ; 19:2, s. 243-250
-
Journal article (other academic/artistic)abstract
- The aims of this study were to describe and compare quality of life (QOL) before and after designation to a palliative homecare team (PHT) in patients with different cancer diagnoses and to identify pre-designation predictors of post-designation global QOL. We measured patients� QOL one week before designation and 11 days (median time) after with the Assessment of Quality of life at the End of Life (AQEL). Of 163 eligible patient 63 participated without attrition. Patients� QOL improved in the physical, psychological, medical and global areas. Six items significantly improved: hours recumbent during the day (p=.009), nausea (p=.008), anxiety (p=.007), getting hold of staff (p=.000), received care (p=.003) and global QOL (p=.023). Depression/low in mood (r=.55) and meaningfulness (r=.70) associated to global QOL. Furthermore, pain (p=.028) and meaningfulness (p=.028) predicted global QOL. In the existential area, it is important to further explore how meaningfulness is associated to and predicts global QOL.
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| 20. |
- Melin Johansson, Titti, et al.
(author)
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Caregivers' perceptions about terminally ill family members' quality of life
- 2007
-
In: European Journal of Cancer Care. - : Hindawi Limited. - 0961-5423 .- 1365-2354. ; 16:4, s. 338-345
-
Journal article (peer-reviewed)abstract
- Caregivers' perceptions on terminally ill family members' quality of life is rarely described. The aim of this study was to describe caregivers' perceptions about terminally ill family members' quality of life when suffering from cancer. Four caregivers participated in repeated focus group, and the data were analysed using qualitative content analysis. The findings were presented through five themes: 'living a normal life', 'being relieved from burdens', 'having a sense of belonging', 'being a symbol of incurable illness' and 'having a sense of dignity'. We found that to manage daily life it was significant to keep up a normal life and participate in social life. One new insight in this study was that caregivers contributed to an extending understanding to the term meaning in which the sense of belonging was fundamental. An obstacle for the sense of belonging was illuminated as the visible signs of incurable illness that stigmatized the ill person, and influenced the dignity. This study highlights the importance of supportive actions from significant others and healthcare professionals for terminally ill family members' quality of life.
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| 21. |
- Melin Johansson, Titti, et al.
(author)
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The meaning of quality of life: narrations by patients with incurable cancer in palliative home care
- 2008
-
In: Palliative & Supportive Care. - 1478-9515 .- 1478-9523. ; 6:3, s. 231-238
-
Journal article (peer-reviewed)abstract
- OBJECTIVE: The objective of this qualitative study was to elucidate the meaning of quality of life as narrated by patients with incurable cancer approaching death in palliative home care in Sweden. METHODS: To gain a deeper understanding of what quality of life means for dying patients, data were collected from narrative interviews with eight patients in their homes in 2004-2006. Qualitative content analysis was used to interpret the meaning regarding quality of life. RESULTS: Three main themes were found: being in intense suffering, having breathing space in suffering, and being at home. Living with incurable cancer at the end of life was experienced as living in physical distress as the body became incapacitated by unexpected physical complications. This incapacity had consequences on patients' psychological, social, and existential well-being. As the complication phase abated, the patients experienced that they regained hopefulness and had time to reflect on existential issues. Patients were provided affirmative care at home from family caregivers and the palliative home care team. SIGNIFICANCE OF RESULTS: This study shows that it is feasible to perform individual interviews with patients approaching death and elucidate the meaning of patients' quality of life in palliative home care. Patients oscillate between being in intense suffering and having breathing space in this suffering, which somewhat opposes the traditional picture of a continuous linear deterioration. Being cared for at home by family caregivers and health care professionals provided a sense of independency and security. Being at home safeguards patients' entire life situation and increases quality of life.
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| 22. |
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| 23. |
- Persson, Bertil, et al.
(author)
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Prefabrication with HSC
- 1999
-
In: Concrete International. - 0162-4075. ; 21:9, s. 58-62
-
Journal article (other academic/artistic)abstract
- This article outlines a numerical study on the benefit of using high-performance and high-strength concrete (HPC/HSC) for fabrication of concrete elements. A comparison is made between the cost of existing beams with normal strength concrete and optimized beams made of HPC/HSC. Background is given concerning the most essential properties of HPC/HSC such as strength, creep, shrinkage, carbonation, and fire resistance. Results indicate that it is necessary to improve the structural configuration of the beams to fit with 16 mm strand to achieve an economical solution. The direct cost reduction after optimization of the section was 15 percent. Other advantages such as approximately 35 percent reduction of the required amount of carbon dioxide to produce cement for the same type of beam, lower cost of transport, and a decreased dead weight of the structure compared with the use of normal strength concrete motivates the use of HPC/HSC for these types of structures.
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| 24. |
- Persson, Bertil, et al.
(author)
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The Benefit of Using High-Performance Concrete for Prefabrication.
- 1998
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In: Proceedings of the Fourth CANMET/ACI/JCI International Conference on Recent Advanced in Concrete Technology. Tokushima.. ; , s. 433-445
-
Conference paper (peer-reviewed)abstract
- This article outlines a numerical study on the benefit of using High-Performance/Strength Concrete for fabrication of concrete elements. For this purpose a comparison is done between the cost of existing beams with normal strength concrete and optimized beams made of High-Performance/Strength Concrete. A background is given concerning the most essential properties of High-Performance/Strength Concrete such as strength, creep, shrinkage, carbonation and fire resistance. The results indicate that it is necessary to improve the structural configuration of the beams to fit with 16-mm strand in order to achieve an economical outfit. The direct cost reduction after optimization of the section was 15%. Also other advantages such as about 35% reduction of the required amount of carbon dioxide in order to produce cement for the same type of beam, lower cost of transport, and a decreased dead weight of the structure compared with the use of normal strength concrete motivates High-Performance/Strength Concrete for these types of structures.
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| 25. |
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| 26. |
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| 27. |
- Ahlberg, Jon, et al.
(author)
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Skador vid operation för karpaltunnelsyndrom kan ge invaliditet
- 2007
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In: Läkartidningen. - 0023-7205 .- 1652-7518. ; 104:40, s. 2884-2886
-
Journal article (other academic/artistic)abstract
- Skador vid operation för karpaltunnelsyndrom är ovanliga men inte sällan allvarligt invalidiserande. Operationen måste göras på rätt indikation och med rätt och varsam teknik.
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| 28. |
- Ahlqvist-Rastad, Jane, et al.
(author)
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Erythropoietin therapy and cancer related anaemia : updated Swedish recommendations
- 2007
-
In: Medical Oncology. - : Springer Science and Business Media LLC. - 1357-0560 .- 1559-131X. ; 24:3, s. 267-272
-
Journal article (peer-reviewed)abstract
- Due to concerns related to treatment with erythropoietin (EPO) and possible negative effects on tumour control, a workshop was organised by the Medical Products Agency of Sweden with the aim to revise national treatment guidelines if needed. In patients with solid tumours, conflicting results have been reported with respect to tumour control and survival. Until further notice it is therefore recommended that EPO should be used restrictively in the treatment of patients with cancer and that the anticipated improvement in quality of life should be evaluated against potential risks.
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| 29. |
- Ahlsén, Bertil, et al.
(author)
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Ombyggnad Torslanda
- 1990
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Reports (other academic/artistic)abstract
- Consumer report for the company in question (the Volvo Automobile Company and the Volvo Torslanda plant) which is financed by the company and partly also by a research foundation. It is a matter of a work that in this particular case were carried out during nine years in a number of experimental workshops located outside the Chalmers University of Technology. These workshops were financed by the Volvo Automobile and Truck companies. This achievement, as the final contribution to the Swedish automotive industry after having already treated this research field/problem area for more than two decades before this particular period if time (involving several junior and senior research competencies, as well as industrial and governmental foundings).
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| 30. |
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| 31. |
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| 32. |
- Albin, Maria, et al.
(author)
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Cytogenetic and morphologic subgroups of myelodysplastic syndromes in relation to occupational and hobby exposures.
- 2003
-
In: Scandinavian Journal of Work, Environment and Health. - 0355-3140. ; 29:5, s. 378-387
-
Journal article (peer-reviewed)abstract
- OBJECTIVES: This study investigated the association between occupational and hobby exposure and the risk of myelodysplastic syndromes (MDS) while focusing on differential patterns of clonal chromosome aberrations and morphologic subgroups. METHODS: A case-referent study was conducted with 330 MDS patients investigated cytogenetically in 1976-1993 (cases) and matched referents. Telephone interviews with either the person or a next-of-kin were used. The participation rate of the cases and referents was 85% and 60%, respectively. Information was obtained from the next-of-kin more often for the cases (88%) than for the referents (26%). Occupational hygienists assessed the exposure using interview data on worktasks and hobbies. Associations with disease risk were evaluated for 10 exposures with a logistic regression analysis. RESULTS: The investigated exposures were generally not associated with cytogenetically abnormal MDS. Effect estimates for specific cytogenetic or morphologic subgroups were generally imprecise. Occupational exposure to extremely low-frequency magnetic fields (EMF) was associated with MDS with a normal karyotype [odds ratio (OR) 2.0, 95% confidence interval (95% CI) 1.0-4.0]. The exposure-response association was consistent for intensity but inconclusive for duration. A decreased risk was observed for MDS, irrespective of karyotypic pattern, among farmers and farmhands (OR 0.53, 95% CI 0.35-0.81). CONCLUSIONS: Cytogenetically abnormal MDS was generally not associated with occupational or hobby exposure to known or suspected genotoxic agents. However, exposure prevalences and intensities were low for several agents. An association was suggested between occupational exposure to EMF and MDS with a normal karyotype. Biases due to differential information quality and selective participation cannot be ruled out.
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| 33. |
- Alskär, Linda C., et al.
(author)
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Effect of lipids on absorption of carvedilol in dogs : Is coadministration of lipids as efficient as a lipid-based formulation?
- 2019
-
In: Journal of Controlled Release. - : Elsevier BV. - 0168-3659 .- 1873-4995. ; 304, s. 90-100
-
Journal article (peer-reviewed)abstract
- Lipid-based formulations (LBFs) is a formulation strategy for enabling oral delivery of poorly water-soluble drugs. However, current use of this strategy is limited to a few percent of the marketed products. Reasons for that are linked to the complexity of LBFs, chemical instability of pre-dissolved drug and a limited understanding of the influence of LBF intestinal digestion on drug absorption. The aim of this study was to explore intestinal drug solubilization from a long-chain LBF, and evaluate whether coadministration of LBF is as efficient as a lipidbased drug formulation containing the pre-dissolved model drug carvedilol. Thus, solubility studies of this weak base were performed in simulated intestinal fluid (SIF) and aspirated dog intestinal fluid (DIF). DIF was collected from duodenal stomas after dosing of water and two levels (1 g and 2 g) of LBF. Similarly, the in vitro SIF solubility studies were conducted prior to, and after addition of, undigested or digested LBF. The DIF fluid was further characterized for lipid digestion products (free fatty acids) and bile salts. Subsequently, carvedilol was orally administered to dogs in a lipid-based drug formulation and coadministered with LBF, and drug plasma exposure was assessed. In addition to these studies, in vitro drug absorption from the different formulation approaches were evaluated in a lipolysis-permeation device, and the obtained data was used to evaluate the in vitro in vivo correlation. The results showed elevated concentrations of free fatty acids and bile salts in the DIF when 2 g of LBF was administered, compared to only water. As expected, the SIF and DIF solubility data revealed that carvedilol solubilization increased by the presence of lipids and lipid digestion products. Moreover, coadministration of LBF and drug demonstrated equal plasma exposure to the lipid-based drug formulation. Furthermore, evaluation of in vitro absorption resulted in the same rank order for the LBFs as in the in vivo dog study. In conclusion, this study demonstrated increased intestinal solubilization from a small amount of LBF, caused by lipid digestion products and bile secretion. The outcomes also support the use of coadministration of LBF as a potential dosing regimen in cases where it is beneficial to have the drug in the solid form, e.g. due to chemical instability in the lipid vehicle. LBFs.
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| 34. |
- Andersen, Mette K., et al.
(author)
-
Paediatric B-cell precursor acute lymphoblastic leukaemia with t(1;19)(q23;p13) : clinical and cytogenetic characteristics of 47 cases from the Nordic countries treated according to NOPHO protocols
- 2011
-
In: British Journal of Haematology. - Oxford : Wiley. - 0007-1048 .- 1365-2141. ; 155:2, s. 235-243
-
Journal article (peer-reviewed)abstract
- The translocation t(1;19)(q23;p13)/der(19) t(1;19) is a risk stratifying aberration in childhood B-cell precursor acute lymphoblastic leukaemia (BCP ALL) in the Nordic countries. We have identified 47 children/adolescents with t(1;19)/der(19) t(1;19)-positive BCP ALL treated on two successive Nordic Society of Paediatric Haematology and Oncology (NOPHO) protocols between 1992 and 2007 and have reviewed the clinical and cytogenetic characteristics of these cases, comprising 1.8% of all cases. The translocation was balanced in 15 cases (32%) and unbalanced in 29 cases (62%). The most common additional chromosome abnormalities were del(9p), i(9q), del(6q), and del(13q). The median age was 7 years, the median white blood cell (WBC) count was 16 x 10(9)/l, and the female/male ratio was 1.2. The predicted event-free survival (EFS) at 5 and 10 years was 0.79, whereas the predicted overall survival (OS) at 5 and 10 years was 0.85 and 0.82, respectively. Nine patients had a bone marrow relapse after a median of 23 months; no patient had a central nervous system relapse. Additional cytogenetic abnormalities, age, gender, WBC count or whether the t(1;19) was balanced or unbalanced did not influence EFS or OS. Compared to cases with t(12,21) and high hyperdiploidy, EFS was similar, but overall survival was worse in patients with t(1;19)/der(19) t(1;19) (P = 0.004).
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| 35. |
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| 36. |
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| 37. |
- Andersson, Anna, et al.
(author)
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Gene expression profiling of leukemic cell lines reveals conserved molecular signatures among subtypes with specific genetic aberrations
- 2005
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In: Leukemia. - : Springer Science and Business Media LLC. - 1476-5551 .- 0887-6924. ; 19:6, s. 1042-1050
-
Journal article (peer-reviewed)abstract
- Hematologic malignancies are characterized by fusion genes of biological/clinical importance. Immortalized cell lines with such aberrations are today widely used to model different aspects of leukemogenesis. Using cDNA microarrays, we determined the gene expression profiles of 40 cell lines as well as of primary leukemias harboring 11q23/MLL rearrangements, t(1;19)[TCF3/PBX1], t(12;21)[ETV6/RUNX1], t(8;21)[RUNX1/CBFA2T1], t(8;14) [IGH@/MYC], t(8;14)[TRA@/MYC], t(9;22)[BCR/ABL1], t(10;11) [PICALM/MLLT10], t(15;17)[PML/RARA], or inv(16)[CBFB/MYH11]. Unsupervised classification revealed that hematopoietic cell lines of diverse origin, but with the same primary genetic changes, segregated together, suggesting that pathogenetically important regulatory networks remain conserved despite numerous passages. Moreover, primary leukemias cosegregated with cell lines carrying identical genetic rearrangements, further supporting that critical regulatory pathways remain intact in hematopoietic cell lines. Transcriptional signatures correlating with clinical subtypes/primary genetic changes were identified and annotated based on their biological/molecular properties and chromosomal localization. Furthermore, the expression profile of tyrosine kinase-encoding genes was investigated, identifying several differentially expressed members, segregating with primary genetic changes, which may be targeted with tyrosine kinase inhibitors. The identified conserved signatures are likely to reflect regulatory networks of importance for the transforming abilities of the primary genetic changes and offer important pathogenetic insights as well as a number of targets for future rational drug design.
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| 38. |
- Andersson, Anna, et al.
(author)
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Microarray-based classification of a consecutive series of 121 childhood acute leukemias: prediction of leukemic and genetic subtype as well as of minimal residual disease status.
- 2007
-
In: Leukemia. - : Springer Science and Business Media LLC. - 1476-5551 .- 0887-6924. ; 21:6, s. 1198-1203
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Journal article (peer-reviewed)abstract
- Gene expression analyses were performed on 121 consecutive childhood leukemias (87 B-lineage acute lymphoblastic leukemias (ALLs), 11 T-cell ALLs and 23 acute myeloid leukemias (AMLs)), investigated during an 8-year period at a single center. The supervised learning algorithm k-nearest neighbor was utilized to build gene expression predictors that could classify the ALLs/AMLs according to clinically important subtypes with high accuracy. Validation experiments in an independent data set verified the high prediction accuracies of our classifiers. B-lineage ALLs with uncharacteristic cytogenetic aberrations or with a normal karyotype displayed heterogeneous gene expression profiles, resulting in low prediction accuracies. Minimal residual disease status (MRD) in T-cell ALLs with a high (40.1%) MRD at day 29 could be classified with 100% accuracy already at the time of diagnosis. In pediatric leukemias with uncharacteristic cytogenetic aberrations or with a normal karyotype, unsupervised analysis identified two novel subgroups: one consisting mainly of cases remaining in complete remission (CR) and one containing a few patients in CR and all but one of the patients who relapsed. This study of a consecutive series of childhood leukemias confirms and extends further previous reports demonstrating that global gene expression profiling provides a valuable tool for genetic and clinical classification of childhood leukemias.
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| 39. |
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| 40. |
- Andreasson, Patrik, et al.
(author)
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BCR/ABL-negative chronic myeloid leukemia with ETV6/ABL fusion
- 1997
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In: Genes, Chromosomes and Cancer. - 1045-2257. ; 20:3, s. 299-304
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Journal article (peer-reviewed)abstract
- A BCR/ABL-negative chronic myeloid leukemia (CML) with t(12;14) (p12;q11-13) as the sole chromosomal abnormality was investigated by fluorescence in situ hybridization (FISH), which disclosed a cryptic insertion of ETV6 (previously called TEL), located at 12p12, into ABL at chromosome band 9q34. ETV6/ABL fusion was confirmed by RT-PCR, revealing that the first five exons of ETV6 were fused in frame with ABL at exon 2. Wild-type ETV6 was expressed, in accordance with the FISH results showing no deletion of the second ETV6 allele. ETV6/ABL chimeric transcripts have previously been reported in acute leukemias, but never before in CML. The present case suggests that ETV6/ABL positivity may constitute a new genetic subgroup of BCR-negative CML.
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| 41. |
- Andreasson, Patrik, et al.
(author)
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Cytogenetic and FISH studies of a single center consecutive series of 152 childhood acute lymphoblastic leukemias
- 2000
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In: European Journal of Haematology. - : Wiley. - 1600-0609 .- 0902-4441. ; 65:1, s. 40-51
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Journal article (peer-reviewed)abstract
- Between 1977 and 1996, cytogenetic investigations were performed on 182 childhood (< or = 16 yr) acute lymphoblastic leukemias (ALL), constituting 94% (182 of 194) of all ALL patients diagnosed and treated at the Departments of Pediatrics, Lund and Malmo University Hospitals, Sweden, during these two decades. The cytogenetic analyses were successful in 152 cases (84%). The failure rate was higher for the ALL investigated before 1987 (30% vs. 4%, p < 0.0001), and also the incidence of cytogenetically normal cases was higher during 1977-86 (43% vs. 25%, p < 0.05). Clonal chromosomal abnormalities were found in 103 (68%) ALL. Structural rearrangements were detected, by chromosome banding alone, in 76 cases (50%). Fluorescence in situ hybridization (FISH) was used to identify cases with t(12;21), 11q23 rearrangements, and 9p deletions, using probes for ETV6/CBFA2, MLL, and CDKN2A/B, in 72 cases from which cells in fixative and/or unstained metaphase preparations were available. In total, the most common structural rearrangements were del(9p) (17%), t(12;21) (15%), del(6q) (8%), and MLL rearrangements (4%). Six (32%) of nineteen cytogenetically normal ALL analyzed by FISH harbored cryptic abnormalities; three displayed t(12;21) and four had del(9p), one of which also carried a t(12;21). Five (45%) of the t(12;21)-positive ALL showed +der(21)t(12;21) or ider(21)(q10)t(12;21), resulting in the formation of double fusion genes. Among the more rare aberrations, eight structural rearrangements were identified as novel recurrent ALL-associated abnormalities, and nine cases harbored rearrangements previously not reported. Sixteen cases displayed karyotypically unrelated clones at different investigations. Seven ALL (5%) showed simple chromosomal changes, unrelated to the aberrations detected at diagnosis, during morphologic and clinical remission, and in all but one instance the patients remained in remission, with the abnormal clone disappearing in subsequent investigations. This indicates that the emergence of novel clonal chromosomal aberrations during remission in childhood ALL is rather common and does not by necessity predict a forthcoming relapse.
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| 42. |
- Appelquist, Karin, 1979, et al.
(author)
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Character and origin of variably deformed granitoids in central southern Sweden: implications from geochemistry and Nd isotopes
- 2011
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In: Geological Journal. - : Wiley. ; 46:6, s. 597-618
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Journal article (peer-reviewed)abstract
- We present major and trace element data for eighteen 1.71–1.66 Ga granitoid samples, and Sm–Nd whole‐rock isotope data for eleven of these samples, in a transect across the border between the Transscandinavian Igneous Belt (TIB) and the Eastern Segment in central southern Sweden. The geochemistry of the granitoids varies from alkalic to alkali‐calcic and peraluminous in the east to predominantly calc‐alkaline and metaluminous in the west. Rocks in the west also have lower SiO2 contents. Trace element signatures favour formation in an active continental margin setting. Nd isotope data are completely overlapping along the transect and initial εNd values are mildly depleted in the range +0.3 to +2.6. The combined data suggest that the magmas were derived mainly from juvenile, pre‐existing crust, increasingly mafic and less alkaline towards the west.
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| 43. |
- Avdic, Daniel, et al.
(author)
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Sex differences in sickness absence and the morbidity-mortality paradox : a longitudinal study using Swedish administrative registers
- 2019
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In: BMJ Open. - : BMJ. - 2044-6055. ; 9:8
-
Journal article (peer-reviewed)abstract
- Objective To analyse whether gender-specific health behaviour can be an explanation for why women outlive men, while having worse morbidity outcomes, known as the morbidity-mortality or gender paradox. Setting The working population in Sweden. Participants Thirty per cent random sample of Swedish women and men aged 40-59 with a hospital admission in the 1993-2004 period were included. The sample for analysis consists of 233274 individuals (115430 men and 117844 women) and in total 1 867013 observations on sickness absence. Intervention Hospital admission across 18 disease categories. Main outcome measures The main outcome measures were sickness absence (morbidity) and mortality. Longitudinal data at the individual level allow us to study how sickness absence changed after a hospital admission in men and women using a difference-in-differences regression analysis. Cox regression models are used to study differences in mortality after the admission. Results Women increased their sickness absence after a hospital admission by around five more days per year than men (95% CI 5.25 to 6.22). At the same time, men had higher mortality in the 18 diagnosis categories analysed. The pattern of more sickness absence in women was the same across 17 different diagnosis categories. For neoplasm, with a 57% higher risk of death for men (54.18%-59.89%), the results depended on the imputation method of sickness for those deceased. By using the premortality means of sickness absence, men had an additional 14.47 (-16.30- -12.64) days of absence, but with zero imputation women had an additional 1.6 days of absence (0.05-3.20). Analyses with or without covariates revealed a coherent picture. Conclusions The pattern of increased sickness absence (morbidity) and lower mortality in women provides evidence on the more proactive and preventive behaviour of women than of men, which could thus explain the morbidity-mortality paradox.
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| 44. |
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| 45. |
- Barbouti, Aikaterini, et al.
(author)
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Clinical and genetic studies of ETV6/ABL1-positive chronic myeloid leukaemia in blast crisis treated with imatinib mesylate.
- 2003
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In: British Journal of Haematology. - : Wiley. - 0007-1048. ; 122:1, s. 85-93
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Journal article (peer-reviewed)abstract
- Most chronic myeloid leukaemia (CML) patients are genetically characterized by the t(9;22)(q34;q11), generating the BCR/ABL1 fusion gene. However, a few CML patients with rearrangements of 9q34 and 12p13, leading to ETV6/ABL1 chimaeras, have also been reported. Here we describe the clinical and genetic response to imatinib mesylate treatment of an ETV6/ABL1-positive CML patient diagnosed in blast crisis (BC). A chronic phase was achieved after acute myeloid leukaemia induction therapy. Then, treatment with imatinib mesylate (600 mg/d) was initiated and the effect was assessed clinically as well as genetically, including by repeated interphase fluorescence in situ hybridization studies. Until d 71 of imatinib mesylate therapy, stable improvements in the clinical and laboratory features were noted, and the frequency of ABL1-rearranged peripheral blood cells decreased from 56% to 11%. At d 92, an additional t(12;13)(p12;q13), with the 12p breakpoint proximal to ETV6, was found. The patient relapsed into BC 126 d after the start of the imatinib mesylate treatment and succumbed to the disease shortly afterwards. No mutations in the tyrosine kinase domain of ABL1 of the ETV6/ABL1 fusion were identified in the second BC. However, whereas the ETV6/ABL1 expression was seemingly the same at diagnosis and at second BC, the expression of ETV6 was markedly lower at the second BC. This decreased expression of wild-type ETV6 may have been a contributory factor for the relapse.
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| 46. |
- Barbouti, Aikaterini, et al.
(author)
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Multicolor COBRA-FISH analysis of chronic myeloid leukemia reveals novel cryptic balanced translocations during disease progression.
- 2002
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In: Genes, Chromosomes and Cancer. - : Wiley. - 1045-2257. ; 35:2, s. 127-137
-
Journal article (peer-reviewed)abstract
- During the initial indolent chronic phase of chronic myeloid leukemia (CML), the t(9;22)(q34;q11), resulting in the Philadelphia chromosome (Ph), is usually the sole cytogenetic anomaly, but as the disease progresses into the accelerated phase (AP), and eventually into aggressive blast crisis (BC), secondary aberrations, mainly unbalanced changes such as +8, i(17q), and +Ph, are frequent. To date, molecular genetic studies of CML BC have mainly focused on alterations of well-known tumor-suppressor genes (e.g., TP53, CDKN2A, and RB1) and oncogenes (e.g., RAS and MYC), whereas limited knowledge is available about the molecular genetic correlates of the unbalanced chromosomal abnormalities. Balanced secondary changes are rare in CML AP/BC, but it is not known whether cryptic chromosomal translocations, generating fusion genes, may be responsible for disease progression in a subgroup of CML. To address this issue, we used multicolor combined binary ratio fluorescence in situ hybridization (FISH), which allows the simultaneous visualization of all 24 chromosomes in different colors, verified by locus-specific FISH in a series of 33 CML cases. Two cryptic balanced translocations, t(7;17)(q32-34;q23) and t(7;17)(p15;q23), were found in two of the five cases showing the t(9;22) as the only cytogenetic change. Using several BAC clones, the breakpoints at 17q23 in both cases were mapped within a 350-kb region. In the case with the 7p15 breakpoint, a BAC clone containing the HOXA gene cluster displayed a split signal, suggesting a possible creation of a fusion gene involving a member of the HOXA family. Furthermore, one case with a partially cryptic t(9;11)(p21-22;q23) and an MLL rearrangement as well as a previously unreported t(3;10)(p22;p12-13) were identified. Altogether, a refined karyotypic description was achieved in 12 (36%) of the 33 investigated cases, illustrating the value of using multicolor FISH for identifying pathogenetically important aberrations in CML AP/BC.
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| 47. |
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| 48. |
- Bardi, G, et al.
(author)
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Tumor karyotype predicts clinical outcome in colorectal cancer patients
- 2004
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In: Journal of Clinical Oncology. - 1527-7755. ; 22:13, s. 2623-2634
-
Journal article (peer-reviewed)abstract
- Purpose To investigate the prognostic value of the overall karyotypic features and specific chromosome aberrations in colorectal cancer (CRC). Patients and Methods Cytogenetic features of 150 primary CRCs investigated at the time of surgery were correlated with patient survival by univariate and multivariate analyses, using classical clinicopathologic parameters as covariates. Results In univariate analysis, in addition to tumor grade and clinical stage, structural aberrations as well as rearrangements of chromosomes 8 and 16 were significantly correlated with shorter overall survival. Karyotypic complexity, rearrangements of chromosomes 8 and 16, and loss of chromosome 4 were significantly correlated with shorter disease-free survival. In multivariate analysis, in addition to tumor grade, the type of chromosome aberrations (structural or numerical), ploidy, and loss of chromosome 18 came across as independent prognostic factors in the group of all patients. In the subset of patients with stage I and II carcinomas, none of the clinicopathologic variables could independently predict patient survival, whereas the presence of structural chromosomal aberrations was the only independent predictor of poor prognosis. In the subset of patients with stage III carcinomas, the presence of structural changes of chromosome 8 was a stronger independent predictor of prognosis than was tumor grade. Conclusion Cytogenetic tumor features are valuable predictors of prognosis in CRC patients. The tumor karyotype should therefore be taken into account in the clinical management of patients with this disease, especially for patients having cancers of the early or intermediate stages I, II, and III.
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| 49. |
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| 50. |
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