| 1. |
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| 2. |
- Anantharaman, Devasena, et al.
(författare)
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Combined effects of smoking and HPV16 in oropharyngeal cancer
- 2016
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Ingår i: International Journal of Epidemiology. - : Oxford University Press (OUP). - 0300-5771 .- 1464-3685. ; 45:3, s. 752-761
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Tidskriftsartikel (refereegranskat)abstract
- Background: Although smoking and HPV infection are recognized as important risk factors for oropharyngeal cancer, how their joint exposure impacts on oropharyngeal cancer risk is unclear. Specifically, whether smoking confers any additional risk to HPV-positive oropharyngeal cancer is not understood.Methods: Using HPV serology as a marker of HPV-related cancer, we examined the interaction between smoking and HPV16 in 459 oropharyngeal (and 1445 oral cavity and laryngeal) cancer patients and 3024 control participants from two large European multicentre studies. Odds ratios and credible intervals [CrI], adjusted for potential confounders, were estimated using Bayesian logistic regression.Results: Both smoking [odds ratio (OR [CrI]: 6.82 [4.52, 10.29]) and HPV seropositivity (OR [CrI]: 235.69 [99.95, 555.74]) were independently associated with oropharyngeal cancer. The joint association of smoking and HPV seropositivity was consistent with that expected on the additive scale (synergy index [CrI]: 1.32 [0.51, 3.45]), suggesting they act as independent risk factors for oropharyngeal cancer.Conclusions: Smoking was consistently associated with increase in oropharyngeal cancer risk in models stratified by HPV16 seropositivity. In addition, we report that the prevalence of oropharyngeal cancer increases with smoking for both HPV16-positive and HPV16-negative persons. The impact of smoking on HPV16-positive oropharyngeal cancer highlights the continued need for smoking cessation programmes for primary prevention of head and neck cancer.
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| 3. |
- Bućin, Dragan, et al.
(författare)
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Desensitization and Heart Transplantation of a Patient With High Levels of Donor-Reactive Anti-Human Leukocyte Antigen Antibodies.
- 2010
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Ingår i: Transplantation. - 1534-6080. ; 90, s. 1220-1225
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Tidskriftsartikel (refereegranskat)abstract
- BACKGROUND.: To prepare a highly immunized recipient for heart transplantation, reduction of high levels of cytotoxic antibodies against human leukocyte antigen (HLA) was deemed essential to prevent antibody-mediated graft failure. METHODS.: Antibodies were analyzed by lymphocytotoxic and solid-phase assays. The pretransplant desensitization treatment protocol included daily tacrolimus and mycophenolate mofetil, weekly protein-A immunoadsorption (IA), intravenous immunoglobulin, and daclizumab. Posttransplant treatment consisted of tacrolimus, mycophenolate mofetil, prednisolone, IA, and daclizumab. RESULTS.: During pretransplant desensitization, each of the weekly immunoadsorption treatments reduced anti-HLA antibody levels by 50% to 70%, but they returned to the pretreatment level within 1 week as measured by flow cytometry. Cytotoxic antibodies remained reduced. After perioperative immunoadsorption, the donor-reactive antibodies (DRAs) were reduced to low levels. The patient underwent successful heart transplantation after 6 weeks on a waiting list. During the first week posttransplant, DRAs remained low. However, after the first week, anti-HLA DRAs reappeared and increased slightly over a 3-week period and then decreased slowly. Cytotoxic crossmatches were negative before and 3 week after transplantation. No clinical rejection was encountered. The patient was doing well 3 years after transplantation, and yearly clinical cardiac investigations were all normal. Three hyperimmunized patients have now undergone successful heart transplantation at our center using this desensitization protocol. CONCLUSIONS.: IA in combination with pretransplant immunosuppressive drug treatment temporarily reduces antibody levels. The therapeutic levels of drug treatment at the time of transplantation may be of crucial importance. The treatment protocol resulted in freedom from rejection and other clinical adverse events.
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| 4. |
- Campa, Daniele, et al.
(författare)
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Genetic variation in genes of the fatty acid synthesis pathway and breast cancer risk.
- 2009
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Ingår i: Breast Cancer Research and Treatment. - : Springer Science and Business Media LLC. - 0167-6806 .- 1573-7217. ; 118:3, s. 565-574
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Tidskriftsartikel (refereegranskat)abstract
- Fatty acid synthase (FAS) is the major enzyme of lipogenesis. It catalyzes the NADPH-dependent condensation of acetyl-CoA and malonyl-CoA to produce palmitic acid. Transcription of the FAS gene is controlled synergistically by the transcription factors ChREBP (carbohydrate response element-binding protein), which is induced by glucose, and SREBP-1 (sterol response element-binding protein-1), which is stimulated by insulin through the PI3K/Akt signal transduction pathway. We investigated whether the genetic variability of the genes encoding for ChREBP, SREBP and FAS (respectively, MLXIPL, SREBF1 and FASN) is related to breast cancer risk and body-mass index (BMI) by studying 1,294 breast cancer cases and 2,452 controls from the European Prospective Investigation on Cancer (EPIC). We resequenced the FAS gene and combined information of SNPs found by resequencing and SNPs from public databases. Using a tagging approach and selecting 20 SNPs, we covered all the common genetic variation of these genes. In this study we were not able to find any statistically significant association between the SNPs in the FAS, ChREBP and SREPB-1 genes and an increased risk of breast cancer overall and by subgroups of age, menopausal status, hormone replacement therapy (HRT) use or BMI. On the other hand, we found that two SNPs in FASN were associated with BMI.
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| 5. |
- Campa, Daniele, et al.
(författare)
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The INSIG2 rs7566605 polymorphism is not associated with body mass index and breast cancer risk
- 2010
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Ingår i: BMC Cancer. - : BioMed Central. - 1471-2407. ; 10, s. 563-
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Tidskriftsartikel (refereegranskat)abstract
- BACKGROUND: The single nucleotide polymorphism rs7566605, located in the promoter of the INSIG2 gene, has been the subject of a strong scientific effort aimed to elucidate its possible association with body mass index (BMI). The first report showing that rs7566605 could be associated with body fatness was a genome-wide association study (GWAS) which used BMI as the primary phenotype. Many follow-up studies sought to validate the association of rs7566605 with various markers of obesity, with several publications reporting inconsistent findings. BMI is considered to be one of the measures of choice to evaluate body fatness and there is evidence that body fatness is related with an increased risk of breast cancer (BC).METHODS: we tested in a large-scale association study (3,973 women, including 1,269 invasive BC cases and 2,194 controls), nested within the EPIC cohort, the involvement of rs7566605 as predictor of BMI and BC risk.RESULTS AND CONCLUSIONS: In this study we were not able to find any statistically significant association between this SNP and BMI, nor did we find any significant association between the SNP and an increased risk of breast cancer overall and by subgroups of age, or menopausal status.
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| 6. |
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En båge genom tiden - ritualer kring en göteborgshistoria. Om Flickläroverket i Artisten
- 2024
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Samlingsverk (redaktörskap) (övrigt vetenskapligt/konstnärligt)abstract
- 1929 bildades Göteborgs första Högre allmänna läroverk för Flickor – Flickläroverket som fick en byggnad 1935 i det kulturella centrumet, Götaplatsen. Efter några år som Kjellbergska gymnasiet, sedan Komvux, blev byggnaden del av Artisten, Högskolan för scen och musik, HSM 1992. Byggnaden har burit kvinnors utbildning, konst och kultur över många generationer, en minneskedja som nu är bruten. Boken - En båge genom tiden – ritualer kring en göteborgshistoria – en konst- och forskningsantologi – är resultatet av de offentliga minnesdagar där de deltagande drygt 200 kvinnorna (70– 97 år) som varit elever på Flickläroverket, studenter vid Artisten, konstnärer och forskare – bidrog till och deltog i gestaltande ritualer, minnesrum, dans, utställningar och samtal som gav liv åt en utbildningskultur och konst som berört samhället i generationer. I boken bidrar ett 20-tal Göteborgsbaserade konstnärer och forskare med olika perspektiv på byggnadens poetiska, sociala och konstnärliga dimensioner. Bland annat beskrivs återskapandet av Bågdansen, som dansades varje år vid Lucia mellan 1934-1972. Här beskrivs även den medie-debatt som ledde till räddningen av målningen Dansen av Nils Nilsson från 1935 och hur nedtagningen gick till. Tillsammans med ett rikt foto- och bildmaterial, filmdokumentationer och ett ljudarkiv utgör boken ett tidsdokument där konst fungerar som minnesbärare över tid och rum.
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| 7. |
- Hoeft, Birgit, et al.
(författare)
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Polymorphisms in fatty acid metabolism-related genes are associated with colorectal cancer risk
- 2010
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Ingår i: Carcinogenesis. - : Oxford University Press (OUP). - 0143-3334 .- 1460-2180. ; 31:3, s. 466-472
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Tidskriftsartikel (refereegranskat)abstract
- Colorectal cancer (CRC) is the third most common malignant tumor and the fourth leading cause of cancer death worldwide. The crucial role of fatty acids for a number of important biological processes suggests a more in-depth analysis of inter-individual differences in fatty acid metabolizing genes as contributing factor to colon carcinogenesis. We examined the association between genetic variability in 43 fatty acid metabolism-related genes and colorectal risk in 1225 CRC cases and 2032 controls participating in the European Prospective Investigation into Cancer and Nutrition study. Three hundred and ninety two single-nucleotide polymorphisms were selected using pairwise tagging with an r(2) cutoff of 0.8 and a minor allele frequency of > 5%. Conditional logistic regression models were used to estimate odds ratios and corresponding 95% confidence intervals. Haplotype analysis was performed using a generalized linear model framework. On the genotype level, hydroxyprostaglandin dehydrogenase 15-(NAD) (HPGD), phospholipase A2 group VI (PLA2G6) and transient receptor potential vanilloid 3 were associated with higher risk for CRC, whereas prostaglandin E receptor 2 (PTGER2) was associated with lower CRC risk. A significant inverse association (P < 0.006) was found for PTGER2 GGG haplotype, whereas HPGD AGGAG and PLA2G3 CT haplotypes were significantly (P < 0.001 and P = 0.003, respectively) associated with higher risk of CRC. Based on these data, we present for the first time the association of HPGD variants with CRC risk. Our results support the key role of prostanoid signaling in colon carcinogenesis and suggest a relevance of genetic variation in fatty acid metabolism-related genes and CRC risk.
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| 8. |
- Hoggart, Clive, et al.
(författare)
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A Risk Model for Lung Cancer Incidence
- 2012
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Ingår i: Cancer Prevention Research. - Philadelphia : American Association for Cancer Research. - 1940-6207 .- 1940-6215. ; 5:6, s. 834-846
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Tidskriftsartikel (refereegranskat)abstract
- Risk models for lung cancer incidence would be useful for prioritising individuals for screening and participation in clinical trials of chemoprevention. We present a risk model for lung cancer built using prospective cohort data from a general population which predicts individual incidence in a given time period.We build separate risk models for current and former smokers utilising 169,035 ever smokers from the multicentre European Prospective Investigation into Cancer and Nutrition (EPIC) and considered a model for never smokers. The data set was split into independent training and test sets. Lung cancer incidence was modelled using survival analysis, stratifying by age started smoking, and for former smokers, also smoking duration. Other risk factors considered were smoking intensity, ten occupational/environmental exposures previously implicated with lung cancer, and SNPs at two loci identified by genome-wide association studies of lung cancer. Individual risk in the test set was measured by the predicted probability of lung cancer incidence in the year preceding last follow-up time, predictive accuracy was measured by the area under the receiver operator characteristic curve (AUC).Utilising smoking information alone gave good predictive accuracy: the AUC and 95% confidence interval in ever smokers was 0.843 (0.810, 0.875), the Bach model applied to the same data gave an AUC of 0.775 (0.737, 0.813). Other risk factors had negligible effect on the AUC, including never smokers for whom prediction was poor.Our model is generalisable and straightforward to implement. Its accuracy can be attributed to its modelling of lifetime exposure to smoking.
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| 9. |
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| 10. |
- Larsson Lund, Maria
(författare)
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Living with physical disability : experiences of the rehabilitation process, occupations and participation in everyday life
- 2004
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Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
- A comprehensive understanding is lacking of the experiences persons with acquired physical disabilities have of changes in their engagement in occupations and of the conditions influencing these experiences Furthermore, little is known about the experiences these people have of the rehabilitation process and whether the rehabilitation services satisfy their needs. Access to such knowledge would significantly add to the ability to design rehabilitation services intended to enhance participation in everyday life. The overall aim of this thesis was, therefore, to illuminate and enhance the understanding of how persons with acquired physical disabilities experienced their rehabilitation process and their possibilities to engage in occupations in everyday life. The thesis is comprised of five studies. The planning of the clients’ rehabilitation at hospital was explored through interviews with the clients (n=57) and the professionals (n=50). Interviews exploring how persons with physical disabilities experienced their rehabilitation process (n=15), their occupational lives in their homes (n=13) and the use of assistive devices (n =17) were analysed qualitatively. Data was also collected from persons with spinal cord injury (n =161) by the Impact on Participation and Autonomy questionnaire. The findings showed that the professionals used different strategies to encourage the clients to participate in the planning of the rehabilitation and that the strategies were based on traditions rather than on the individual clients’ desires to participate. The informants’ experiences reflected three parallel chains of rehabilitation over a period of time, a medical, a psychological and a social one. The influence of the different rehabilitation chains on how the clients’ lives turned out varied over time, and the professionals were predominantly involved in the medical rehabilitation chain. The informants’ experiences showed that their engagement in occupations in the home differed profoundly. Access to social support, which was provided under different conditions, was of decisive importance for their occupational engagement. The findings also showed that changes in the informants’ occupations in the home setting transformed the meaning of the home in general. The meaning of using assistive devices was experienced as manifold and double-edged. The incorporation of or resistance to assistive devices was understood as different approaches to adaptation with the same intention: to achieve desired occupational self-images. The majority of the informants perceived their participation in the life situation as sufficient but more than half reported one or more severe problems with participation. Access to social support in everyday occupations had a greater impact on predicting severe problems with participation than certain traditional health related factors or aspects related to the individual. To conclude, the findings indicate that the rehabilitation services need to be better able to adapt to clients’ desires to participate in the planning of their rehabilitation, and designed to satisfy the various needs the clients experience throughout the rehabilitation process. It was revealed that the societal and social environment, as manifested through social interactions, are of central importance in understanding the consequences of and possibilities to engage in occupations supporting participation in everyday life.
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| 11. |
- Linde, Cecilia, et al.
(författare)
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Baseline characteristics of 547 new onset heart failure patients in the PREFERS heart failure study
- 2022
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Ingår i: ESC Heart Failure. - : John Wiley & Sons. - 2055-5822. ; 9:4, s. 2125-2138
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Tidskriftsartikel (refereegranskat)abstract
- Aim We present the baseline characteristics of the PREFERS Stockholm epidemiological study on the natural history and course of new onset heart failure (HF) aiming to improve phenotyping focusing on HF with preserved left ventricular ejection fraction (HFpEF) pathophysiology.Methods and results New onset HF patients diagnosed in hospital or at outpatient HF clinics were included at five Stockholm hospitals 2015-2018 and characterized by N-terminal pro brain natriuretic peptide (NT-proBNP), biomarkers, echocardiography, and cardiac magnetic resonance imaging (subset). HFpEF [left ventricular ejection fraction (LVEF) >= 50%) was compared with HF with mildly reduced LVEF (HFmrEF; LVEF 41-49%) and with HF with reduced LVEF (HFrEF; LVEF <= 40%). We included 547 patients whereof HFpEF (n = 137; 25%), HFmrEF (n = 61; 11%), and HFrEF (n = 349; 64%). HFpEF patients were older (76; 70-81 years; median; interquartile range) than HFrEF (67; 58-74; P < 0.001), more often women (49% vs. 30%; P < 0.001), and had significantly higher comorbidity burden. They more often had atrial fibrillation, hypertension, and renal dysfunction. NT-proBNP was lower in HFpEF (896; 462-1645 ng/L) than in HFrEF (1160; 563-2370; P = 0.005). In HFpEF, left ventricular (LV) diameters and volumes were smaller (P < 0.001) and septa! and posterior wall thickness and relative wall thickness higher (P < 0.001). E/e >= 14 was present in 26% of HFpEF vs. 32% of HFrEF (P = 0.017) and left atrial volume index > 34 mL/m(2) in 57% vs. 61% (P = 0.040). HFmrEF patients were intermediary between HFpEF and HFrEF for LV mass, LV volumes, and RV volumes but had the highest proportion of left ventricular hypertrophy and the lowest proportion of elevated E/e.Conclusions Phenotype data in new onset HF patients recruited in a broad clinical setting showed that 25% had HFpEF, were older, more often women, and had greater comorbidity burden. PREFERS is well suited to further explore biomarker and imaging components of HFpEF pathophysiology and may contribute to the emerging knowledge of HF epidemiology.
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| 12. |
- Lund, Soren S., et al.
(författare)
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Agreement Between Fasting and Postprandial LDL Cholesterol Measured with 3 Methods in Patients with Type 2 Diabetes Mellitus
- 2011
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Ingår i: Clinical Chemistry. - : Oxford University Press (OUP). - 0009-9147 .- 1530-8561. ; 57:2, s. 298-308
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Tidskriftsartikel (refereegranskat)abstract
- BACKGROUND: LDL cholesterol (LDL-C) is a modifiable cardiovascular disease risk factor. We used 3 LDL-C methods to study the agreement between fasting and postprandial LDL-C in type 2 diabetes (T2DM) patients. METHODS: We served 74 T2DM patients a standardized meal and sampled blood at fasting and 1.5, 3.0, 4.5, and 6.0 h postprandially. We measured LDL-C by use of modified beta quantification (MBQ), the Friedewald equation (FE), and a direct homogeneous assay (DA). We evaluated agreement using 95% limits of agreement (LOA) within +/- 0.20 mmol/L (+/- 7.7 mg/dL). RESULTS: LDL-C concentrations at all postprandial times disagreed with those at fasting for all methods. In 66 patients who had complete measurements with all LDL-C methods, maximum mean differences (95% LOA) in postprandial vs fasting LDL-C were -0.16 mmol/L (-0.51; 0.19) [-6.2 mg/dL (-19.7; 7.3)] with MBQ at 3 h; -0.36 mmol/L (-0.89; 0.17) [-13.9 mg/dL (-34; 6.6)] with FE at 4.5 h; and -0.24 mmol/L (-0.62; 0.05) [-9.3 mg/dL (-24; 1.9)] with DA at 6.0 h. In postprandial samples, FE misclassified 38% of patients (two-thirds of statin users) into lower Adult Treatment Panel III (ATP III) risk categories. Greater disagreement between fasting and postprandial LDL-C was observed in individuals with postprandial triglyceride concentrations >2.08 mmol/L (>184 mg/dL) and in women (interactions: P <= 0.038). CONCLUSIONS: Differences up to 0.89 mmol/L (34 mg/dL) between fasting and postprandial LDL-C concentrations, with postprandial LDL-C concentrations usually being lower, were found in T2DM by 3 different LDL-C methods. Such differences are potentially relevant clinically and suggest that, irrespective of measurement method, postprandial LDL-C concentrations should not be used to assess cardiovascular disease risk. (C) 2010 American Association for Clinical Chemistry
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| 13. |
- Lund, Soren S, et al.
(författare)
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Impact of metformin versus repaglinide on non-glycaemic cardiovascular risk markers related to inflammation and endothelial dysfunction in non-obese patients with type 2 diabetes
- 2008
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Ingår i: European Journal of Endocrinology. - 1479-683X. ; 158:5, s. 631-641
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Tidskriftsartikel (refereegranskat)abstract
- Objective: In patients with type 2 diabetes mellitus (T2DM), biomarkers reflecting inflammation and endothelial dysfunction have been linked to cardiovascular disease (CVD biomarkers) and metabolic regulation. In T2DM patients, metformin and insulin secretagogues have demonstrated equal anti-hyperglycaemic potency. Here, we report the effect of metformin versus an insulin secretagogue, repaglinide, on CVD biomarkers in non-obese T2DM patients. Design and methods: Single-centre, double-masked, double-dummy, crossover study during 2x4 months involving 96 non-obese (body mass index <= 27kg/m(2)) insulin-naive T2DM patients. At enrolment, previous oral hypoglycaemic agents were stopped and the patients entered a 1-month run- on diet-only treatment. Hereafter, patients were randomized to either 2 mg repaglinide thrice daily followed by 1 g metformin twice daily or vice versa each during 4 months with a 1-month washout between interventions. Results: Levels of tumour necrosis factor-alpha, plasminogen activator inhibitor-1 antigen, tissue-type plasminogen activator antigen, von Willebrand factor, soluble intercellular adhesion molecule-1 and soluble E-selectin were significantly lower during metformin versus repaglinide treatments. In contrast, Amadori albumin and heart rate were higher during metformin versus repaglinide. Levels of interleukin-6. fibrinogen, soluble vascular cell adhesion molecule-1, asymmetric dimethylarginine and advanced glycation end products as well as glycaemic levels (previously reported) and 24-h blood pressure were similar between treatments. Adjustment for known macrovascular disease did not affect the between-treatment: effects. Conclusions: In non-obese T2DM patients, metformin was more effective in reducing selected biomarkers reflecting inflammation and endothelial dysfunction compared with repaglinide despite similar glycaemic levels between treatments.
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| 14. |
- Lund, Soren S, et al.
(författare)
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Impact of metformin versus the prandial insulin secretagogue, repaglinide, on fasting and postprandial glucose and lipid responses in non-obese patients with type 2 diabetes
- 2008
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Ingår i: European Journal of Endocrinology. - 1479-683X. ; 158:1, s. 35-46
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Tidskriftsartikel (refereegranskat)abstract
- Objective: Non-obese patients with type 2 diabetes (T2DM) are characterized by predominant defective insulin secretion. However, in non-obese T2DM patients, metformin, targeting insulin resistance. is non-inferior to the prandial insulin secretagogue, repaglinide, controlling overall glycaemia (HbA(1c)). Whether the same apply for postprandial glucose and lipid metabolism is unknown. Here. we compared the effect of metformin versus repaglinide on postprandial metabolism in non-obese T2DM patients. Design: Single-centre. double-masked, double-dummy. crossover study during 2 X 4 months involving 96 non-obese (body mass index:! 2 7 kg/m(2)) insulin-naive T2DM patients. At enrolment, patients stopped prior oral hypoglycaemic agents therapies and after a 1-month run-in period on diet-only treatment, patients were randomized to repaglinide (2 mg) thrice daily followed by metformin (1 g) twice daily or vice versa each during 4 months with 1-month washout between interventions. Methods: Postprandial metabolism was evaluated by a standard test meal (3 515 kJ: 54%, fat, 13% protein and 33%, carbohydrate) with blood sampling 0-6 h postprandially. Results: Fasting levels and total area under the curve (AUC) for plasma glucose, triglycerides and free fatty acids (FFA) changed equally between treatments. In contrast, fasting levels and AUC of total cholesterol. low-density lipoprotein (LDL) cholesterol, non-high-density lipoprotein (non-HDL) cholesterol and serum insulin were lower during metformin than repaglinide (mean (95% confidence intervals), LDL cholesterol difference metformin versus repaglinide: AUC: -0.17mmol/l (-0.26; -0.08)). AUC differences remained significant after adjusting for fasting levels. Conclusions: In non-obese T2DM patients, metformin reduced postprandial levels of glycaemia, triglycerides and FFA similarly compared to the prandial insulin secretagogue, repaglinide. Furthermore, metformin reduced fasting and postprandial chotesterolaemia and insulinaemia compared with repaglinide. These data support prescription of metformin as the preferred drug in non-obese patients with T2DM targeting fasting and postprandial glucose and lipid metabolism.
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| 15. |
- Lund, Ulla, et al.
(författare)
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Glomerular filtration rate dependence of sieving of albumin and some neutral proteins in rat kidneys
- 2003
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Ingår i: American Journal of Physiology: Renal, Fluid and Electrolyte Physiology. - : American Physiological Society. - 0363-6127. ; 284:6, s. 1226-1234
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Tidskriftsartikel (refereegranskat)abstract
- The size and charge-selective properties of the glomerular barrier are partly controversial. Glomerular sieving coefficients (theta) for proteins have rarely been determined noninvasively before in vivo. Therefore, theta was assessed vs. glomerular filtration rate (GFR; Cr-51-EDTA clearance) in intact rats for radiolabeled myoglobin, kappa-dimer, neutral horseradish peroxidase (nHRP), neutral human serum albumin (nHSA), and native albumin (HSA). To obtain theta, glomerular tracer clearance, assessed from the 7- to 8-min kidney uptake of protein, was divided by the GFR. The data were fitted with a two-pore model of glomerular permeability, where the small-pore radius was 37.35 +/- 1.11(SE) Angstrom, and the "unrestricted pore area over diffusion path length" (A(0)/DeltaX) 1.84 +/- 0.43 . 10(6) cm. Although seemingly horizontal for nHRP and nHSA, the log theta vs. GFR curves showed slightly negative slopes for the proteins investigated in the GFR interval of 2-4.5 ml/min. Strong negative ( linear) correlations between ( log) theta and GFR were obtained for myoglobin (P = 0.002) and HSA (P = 0.006), whereas they were relatively weak for nHRP and nHSA and nonsignificant for kappa-dimer. theta for nHSA was markedly higher than that for HSA. In conclusion, there were no indications of increases in theta vs. GFR, as indicative of concentration polarization, for the proteins investigated at high GFRs. Furthermore, the glomerular small-pore radius assessed from endogenous (neutral) protein sieving data was found to be smaller than previously determined using dextran or Ficoll as test molecules.
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| 16. |
- Magnusson, Bertil, et al.
(författare)
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Contrôle interne de la qualité
- 2006
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Rapport (övrigt vetenskapligt/konstnärligt)abstract
- L’objectif de ce manuel est de servir de guide pratique pour le contrôle interne de la qualité .Il est écrit pour vous – qui avez comme travail les mesures de routine dans le laboratoire d’analyses.La première version de Internal Quality Control (1) – Handbook for Chemical AnalyticalLaboratories (Nordic cooperation) a été preparée en 1984, et une version révisée a été diffusée en 1986 enNorvège, mieux connue sous le nom de Trollboken(2). L’ouvrage a ensuite été traduit en plusieurs autreslangues, et a été largement utilisé comme outil dans les laboratoires d’analyses chimiques, – notammentdans les laboratoires d’analyse de l’environnement. La nouvelle version présentée ici- est une éditionaméliorée et augmentée, et son objectif est – comme il l’a toujours été – de servir d’outil pratique pour leschimistes analystes qui utilisent les méthodes analytiques dans leur travail quotidien.[...]
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| 17. |
- Magnusson, Bertil, et al.
(författare)
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ConTrollo della qualità interno: manuale per i laboratori di analisi chimiche : Quarta edizione (2011) del Nordtest Report TR 569
- 2012
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Rapport (övrigt vetenskapligt/konstnärligt)abstract
- Attraverso il controllo della qualità interno (CQI) i laboratori di analisi possono monitorare la qualità delleprestazioni analitiche, dimostrare il proprio livello di qualità, identificare azioni preventive e di miglioramentocontinuo. In questo manuale vengono presentati, in forma semplice e discorsiva, i principi del CQI e viene descrittonel dettaglio come pianificare e attuare un programma di CQI che sia idoneo per gli scopi a cui il lavoro dellaboratorio è destinato. Vengono descritti i tipi di campioni da utilizzare e i due modelli di carte di controllo piùsemplici e utili per il lavoro quotidiano (la carta delle medie o carta X e la carta degli intervalli o carta R). Inparticolare vengono fornite indicazioni su come fissare la linea centrale e i limiti di controllo, in base a criteristatistici oppure ai requisiti che i risultati debbono soddisfare, illustrate da numerosi esempi relativi principalmente adanalisi ambientali.
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| 18. |
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| 19. |
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| 20. |
- Magnusson, Bertil, et al.
(författare)
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Internal Quality Controll : Vodič za hemijske laboratorije
- 2008
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Rapport (övrigt vetenskapligt/konstnärligt)abstract
- Cilj Trolknjige je da pruži dobar i praktično izvodljiv priručnik za internu kontrolu kvaliteta.Ona je napisana za Vas - za izvođenje svakodnevnih poslova u analitičkoj laboratoriji.Prva verzija Interne kontrole kvaliteta (1) Priručnik za internu kontrolu kvaliteta za laboratorijekoja se bavi ispitivanjem voda (Nordijska saradnja) je napisana 1984, a revidirana verzija ještampana 1986. godine u Norveškoj, pod imenom Trolknjiga. Kasnije je prevedena na jošnekoliko jezika. Njena primena je dosta rasprostranjena u brojnim hemijskim laboratorijama,a naročito u laboratorijama iz oblasti zaštite životne sredine. Ova nova verzija je poboljšanoizdanje, i njen cilj je, kao što je bio i pre, da bude praktično sredstvo za analitičare u njihovomsvakodnevnom radu sa analitičkim metodama.
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| 21. |
- Magnusson, Bertil, et al.
(författare)
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Internal Quality Controll : Handbook for Chemical Laboratories
- 2011
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Rapport (övrigt vetenskapligt/konstnärligt)abstract
- According to ISO/IEC 17025 (3): The laboratory shall have quality control procedures formonitoring the validity of tests undertaken. The resulting data shall be recorded in such a way thattrends are detectable and, where practicable, statistical techniques shall be applied to the reviewingof the results. The monitoring shall include e.g. regular use of internal quality control. … Qualitycontrol data shall be analysed and, where they are found to be outside pre-defined criteria, plannedaction shall be taken to correct the problem and to prevent incorrect results from being reported.Internal quality control at the chemical analytical laboratory, involves a continuous, criticalevaluation of the laboratory’s own analytical methods and working routines. The controlencompasses the analytical process starting with the sample entering the laboratory and ending withthe analytical report. The most important tool in this quality control is the use of control charts. Thebasis is that the laboratory runs control samples together with the routine samples.The results of the control program may be used in several ways - the analyst will have an importantquality tool in his/her daily work, the customer can get an impression of the laboratory’s quality andthe laboratory can use the results in the estimation of the measurement uncertainty.The QC has to be part of a quality system and should be formally reviewed on a regular basis. Theaim of this handbook is to describe a fit for purpose system for internal quality control at analyticallaboratories that are performing chemical analysis. The approach is general, but the examples aremainly from environmental analyses.
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| 22. |
- Magnusson, Bertil, et al.
(författare)
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Interne Qualitätskontrolle : Hanbuch für Chemische Laboratorien
- 2011
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Rapport (övrigt vetenskapligt/konstnärligt)abstract
- Das Ziel des „Trollbuches“ liegt darin, gute und praktische Richtlinien für die laborinterne Qualitätskontrolle bereitzustellen. Es ist für Sie geschrieben – die Sie Routinemessungen im analytischen Labor durchführen.Die erste Version von „Internal Quality Control [1] – Handbook for Chemical Analytical Laboratories (Nordic cooperation)“ erschien 1984 und eine überarbeitete Version wurde 1986 in Norwegen gedruckt, besser bekannt unter dem Namen „Trollboken“ [2]. Es wurde später in mehrere andere Sprachen übersetzt und weitverbreitet als ein Hilfsmittel im chemischen Routinelabor verwendet, besonders in Umweltlaboratorien. Diese neue Version des Handbuchs ist eine verbesserte und erweiterte Auflage und das Ziel ist, wie immer, als praktisches Hilfsmittel für die Analytiker bei ihren täglichen analytischen Messungen zu dienen.[...]
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| 23. |
- Magnusson, Bertil, et al.
(författare)
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Sisäinen laadunohjaus : Käsikirja kemian laboratorioille
- 2006
-
Rapport (övrigt vetenskapligt/konstnärligt)abstract
- Tässä ohjekirjassa annetaan hyvät ja käytännölliset ohjeet sisäiseen laadunohjaukseen. Se on kirjoitettu sinulle, joka teet rutiinimäärityksiä kemian laboratoriossa.Sisäinen laadunohjaus – Ohjekirja kemian laboratorioille (Internal Quality Control – Handbook forChemical Analytical Laboratories) – ohjekirjan ensimmäinen painos valmistui pohjoismaisena yhteistyönävuonna 1984 [1]. Tarkistettu painos, joka tunnetaan nimellä Trollboken [2], julkaistiin Norjassavuonna 1986. Myöhemmin ohjekirja on käännetty useille eri kielille ja sitä on käytetty laajalti kemianlaboratorioissa – erityisesti ympäristölaboratorioissa. Tämä ohjekirjan uusi versio on parannettu ja laajennettupainos, jonka tarkoitus on olla käytännön apuväline analyytikoille heidän päivittäisessä työssään.[...]
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| 24. |
- Magnusson, Bertil, et al.
(författare)
-
Uncertainty from sampling - a nordtest handbook for sampling planners on sampling quality assurance and uncertainty estimation
- 2008
-
Rapport (refereegranskat)abstract
- The handbook provides practical guidance on sampling uncertainty estimation in the Nordtest TR handbook format. The handbook is an extract of and based upon the principles, methods and text of the international Eurachem Guide Estimation of measurement uncertainty arising from sampling. The Eurachem guide is more extensive and provides details on theory and additional examples. The basic reference for the text in this handbook is the above-mentioned Eurachem guide. The overall purpose of this handbook has been to provide those working with investigations, monitoring and control that require sampling with a set of tools for calculation and control of the sampling uncertainty of their sampling procedure. Four examples illustrate the application of different methods and tools, while allowing you to follow all steps of the calculations. Although the examples are given for specific matrices (groundwater, iron ore, baby food and wastewater) the approaches are widely applicable. It is the intention of the project group to make these tools and the understanding of their use available outside the world of analytical chemistry, although the basic principles applied originate from analytical chemistry.
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| 25. |
- Manusson, Bertil, et al.
(författare)
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Внутренний контроль качества : Руководство для химическихлабораторий
- 2007
-
Rapport (övrigt vetenskapligt/konstnärligt)abstract
- Цель Troll книги состоит в том, чтобы дать практическое руководство длявнутреннего контроля качества. Она написана для Вас – работающих с обычнымиопределениями в аналитической лаборатории.Первая версия Внутреннего Контроля качества [1] – Руководство по ВнутреннемуКонтролю Качества в Водных Лабораториях (скандинавское сотрудничество) былоподготовлено в 1984, и пересмотренная версия была напечатана в 1986 в Норвегии,хорошо известной под названием Trollboken [2]. Позже она была переведена на ряддругих языков, и широко использовалось как инструмент в обычных химическихлабораториях – особенно в экологических лабораториях. Эта новая версияРуководства - улучшенная и расширенная редакция, и ее цель – как и всегда - что этодолжен быть практический инструмент для аналитиков в их ежедневной работе саналитическими методами.[...]
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