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Träfflista för sökning "AMNE:(MEDICAL AND HEALTH SCIENCES Clinical Medicine Cancer and Oncology) srt2:(2010-2014)"

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  • Zamora-Ros, Raul, et al. (författare)
  • Tea and coffee consumption and risk of esophageal cancer : the European Prospective Investigation into Cancer and Nutrition (EPIC) study
  • 2014
  • Ingår i: International Journal of Cancer. - Wiley-Blackwell. - 0020-7136 .- 1097-0215. ; 135:6, s. 1470-1479
  • Tidskriftsartikel (refereegranskat)abstract
    • <p>Epidemiological data regarding tea and coffee consumption and risk of esophageal cancer (EC) is still inconclusive. We examined the association of tea and coffee consumption with EC risk among 442,143 men and women without cancer at baseline from 9 countries of the European Prospective Investigation into Cancer and Nutrition (EPIC). Tea and coffee intakes were recorded using country-specific validated dietary questionnaires. Cox regression models were used to analyze the relationships between tea and coffee intake and EC risk. During a mean follow-up of 11.1 years, 339 participants developed EC, of which 142 were esophageal adenocarcinoma (EAC) and 174 were esophageal squamous cell carcinoma (ESCC). In the multivariable models, no significant associations between tea (mostly black tea), and coffee intake and risk of EC, EAC and ESCC were observed. In stratified analyses, among men coffee consumption was inversely related to ESCC (HR for comparison of extreme tertiles 0.42, 95% CI 0.20-0.88; P-trend=0.022), but not among women. In current smokers, a significant and inverse association was observed between ESCC risk and tea (HR 0.46, 95% CI 0.23-0.93; P-trend=0.053) and coffee consumption (HR 0.37, 95% CI 0.19-0.73; P-trend=0.011). However, no statistically significant findings were observed using the continuous variable (per 100mL/d). These data did not show a significant association between tea and coffee consumption and EC, EAC and ESCC, although a decreased risk of ESCC among men and current smokers is suggested, but need to be confirmed in further prospective studies including more cases.</p>
  • Berglund, Anders, et al. (författare)
  • Comorbidity, treatment and mortality : a population based cohort study of prostate cancer in PCBaSe Sweden
  • 2011
  • Ingår i: Journal of Urology. - Elsevier. - 0022-5347 .- 1527-3792. ; 185:3, s. 833-840
  • Tidskriftsartikel (refereegranskat)abstract
    • <p>Purpose</p> <p>We examined associations among comorbidity, treatment decisions and mortality in patients with prostate cancer.</p> <p>Materials and Methods</p> <p>A total of 77,536 men diagnosed with prostate cancer between 1997 and 2006 were identified in PCBaSe Sweden from the National Prostate Cancer Register of Sweden. Logistic, Cox and competing risk regression were used to assess associations among Charlson comorbidity index, treatment and mortality. The Charlson comorbidity index was categorized into no (0), mild (1) and severe comorbidity (2+).</p> <p>Results</p> <p>In men with low risk prostate cancer 5,975 of the 13,245 (45.1%) patients without comorbidity underwent radical prostatectomy compared to 256 of the 1,399 (18.9%) men with severe comorbidity. Following adjustment for age and period of diagnosis, radical prostatectomy was less likely to be offered to men with severe comorbidity (OR 0.48, 95% CI 0.41–0.55). In men with high risk prostate cancer, radiotherapy was more common (range 7.7% to 21.3%) than radical prostatectomy (range 3.0% to 11.2%) regardless of comorbidity burden. All cause and competing cause but not prostate cancer specific mortality were increased in men with severe comorbidity (all cause HR 1.99, 95% CI 1.93–2.05; competing cause sHR 2.66, 95% CI 2.56–2.78; prostate cancer specific sHR 0.98, 95% CI 0.93–1.03). The cumulative probability of prostate cancer death given no death from competing causes was significantly higher in men with severe comorbidity in all risk groups (p &lt;0.01).</p> <p>Conclusions</p> <p>Comorbidity affects treatment choices, and is associated with all cause, competing cause and conditional prostate cancer specific mortality. An increased conditional prostate cancer specific mortality in men with severe comorbidity may reflect less aggressive treatment, impaired tumor defense, lifestyle factors and poor general health behavior.</p> <p></p>
  • Dalmo, Johanna, et al. (författare)
  • Potential renal toxicity biomarkers indicating radiation injury after 177Lu-octreotate treatment
  • 2013
  • Ingår i: Annual congress of the European association of nuclear medicine, october 19-23, 2013, Lyon, France. Posterwalk.
  • Konferensbidrag (övrigt vetenskapligt)abstract
    • The kidneys are one of the most exposed non-tumor tissues and regarded as one of the main dose-limiting organs in peptide receptor radionuclide therapy (PRRT). [177Lu-DOTA0, Tyr3]-octreotate (177Lu-octreotate) has shown promising results in the treatment of somatostatin receptor overexpressing neuroendocrine tumors, but optimization is still needed. The ability to give each patient as much 177Lu-octreotate as possible without inducing nephrotoxicity is necessary for an efficient treatment. However, due to large inter-individual differences in uptake and retention in the kidneys, there is a need for efficient Methods that early can indicate renal injury. A possible way is to identify biomarkers for high risk of radiation nephrotoxicity. The aim of this study was to investigate the potential of using urinary retinol binding protein (RBP), and blood valinhydantoin (VH) as biomarkers of nephrotoxicity on adult mice after 177Lu-octreotate treatment. BALB/c nude mice (n=6/group) were i.v. injected with 60 MBq or 120 MBq of 177Lu-octreotate. The control group was mock treated with saline. Spot urine samples were collected before injection, and 14, 30, 60 and 90 days after injection. Analysis of RBP4 and creatinine was performed using Mouse RBP4 ELISA kit and Creatinine kit from R&D Systems, respectively. Erythrocytes were separated from whole blood samples collected 90 days after injection, and analysed for VH by LC-MS/MS. The ratio between VH and a volumetric standard was calculated. The RBP/creatinine level increased with time in both groups given 177Lu-octreotate, with earlier and higher response for the 120 MBq group. No clear change in VH level between the different groups was observed. The result show that RBP may be a promising new biomarker for radiation induced kidney toxicity. The presently used method based on VH was not sensitive enough to be used as kidney toxicity marker. Further studies on mice are ongoing to validate if RBP4 may be efficient in predicting late nephrotoxicity. In patients, RBP/creatinine levels are followed in urine samples after treatment with 177Lu-octreotate.
  • Glimelius, Ingrid, et al. (författare)
  • The effect of Eosinophil cationic protein (ECP) on Hodgkin lymphoma cell lines
  • 2011
  • Ingår i: Experimental Hematology. - 0301-472X .- 1873-2399. ; 39:8, s. 850-858
  • Tidskriftsartikel (refereegranskat)abstract
    • <p><strong>Background</strong> In classical Hodgkin lymphoma (HL), many eosinophils in tumour tissue indicate poor prognosis, probably caused by stimulation of the tumour cells, the Hodgkin Reed Sternberg (HRS) cells. However, eosinophils are primarily known for their role in innate immunity, where one function is to secrete the toxic substances eosinophil cationic protein (ECP), and eosinophil protein X (EPX). The aim of this study was to investigate the effects of ECP on HRS cells <em>in vitro</em>.</p><p><strong>Method</strong> The fluorometric microculture cytotoxicity-assay (FMCA) measured survival index (SI) of cells from the HL cell lines HDLM-2, KMH2, and L428 after incubation with ECP or EPX. The gene products of a coding ECP polymorphism, ECP97arg and ECP97thr, and ECPs, with different levels of glycosylation were investigated. Flow cytometry was used to monitor the effects of ECP on markers of cell death.</p><p><strong>Results</strong> A concentration dependent reduction of SI was seen after ECP treatment. For the B-cell derived cell lines, KMH2 and L428, ECP was cytotoxic with a dose response relationship similar to a previously investigated small-cell lung cancer cell-line. In contrast, for HDLM-2, which is a cell line of T-cell origin, the cytotoxicity was even more pronounced at the lowest concentrations tested, and then reached a plateau at about 0.018µM. At a concentration of 0.14µM of ECP, an SI of 71%±1.9 was recorded for HDLM-2, which did not accentuate despite higher concentrations of ECP. ECP97arg and ECP97thr displayed similar cytotoxicity, and the level of glycosylation did not affect cytotoxicity for HDLM-2, in contrast to the small-cell lung cancer cell-line. For EPX, no or very limited reduction in SI was seen, compared to ECP (p&lt;0.001). The majority of cells that died from ECP (the HDLM-2 cell line) were PI positive, and only a few were annexin V positive.</p><p><strong>Conclusions </strong>ECP is cytotoxic for HRS cells, but heterogeneity between cell lines was seen. The two cell lines of B-cell origin, KMH2 and L428, were sensitive to high ECP concentrations, but for HDLM-2, of T-cell origin, the cytotoxicity reached a plateau at higher concentrations. Thus, even at presumably high concentrations, ECP can be present around HRS cells without eradicating all cells.</p>
  • Henoch, Ingela, 1956-, et al. (författare)
  • The influence of symptom clusters and the most distressing concerns regarding quality of life among patients with inoperable lung cancer
  • 2014
  • Ingår i: European Journal of Oncology Nursing. - 1462-3889. ; 18:3, s. 236-241
  • Tidskriftsartikel (refereegranskat)abstract
    • Purpose: To explore the influence of symptom clusters and the most distressing concerns on global rating of quality of life (QoL) among patients with inoperable lung cancer (LC) over a three-month period following diagnosis. Methods: Data were derived from a longitudinal study dealing with the symptom experiences of 400 patients with LC at three time points: close to diagnosis and one and three months later. The symptom clusters were derived from a QoL questionnaire using factor analysis, which resulted in three clusters: the Respiratory cluster, the Pain cluster and the Mood cluster. The most distressing concerns were derived from responses to a free listing question (What is most distressing at present') and were categorised under three dimensions: Bodily distress, Life situation with LC and latrogenic distress. Cross-sectional, multivariate regression analyses with QoL as a dependent variable were used to determine predictors (Symptom clusters and most distressing concerns) at the three time points. Results: All three symptom clusters predicted QoL at each time point. Close to diagnosis, none of the dimensions of most distressing concerns predicted QoL, while the dimension Bodily distress was a significant predictor of QoL after one month. The Life situation with LC dimension was a significant predictor of QoL three months after diagnosis. Conclusions: Symptom clusters are important to LC patients' QoL and need to be acknowledged by healthcare professionals. The present study shows the importance of patients' descriptions of key concerns, which vary from diagnosis onwards, and urges healthcare professionals to be vigilant to such changes. (C) 2013 Elsevier Ltd. All rights reserved.
  • Sveen, Josefin, et al. (författare)
  • They still grieve - a nationwide follow-up of young adults 2-9 years after losing a sibling to cancer
  • 2014
  • Ingår i: Psycho-Oncology. - 1057-9249 .- 1099-1611. ; 23:6, s. 658-664
  • Tidskriftsartikel (refereegranskat)abstract
    • <p>Objectives: The aims of this study were to assess the prevalence of unresolved grief in bereaved young adult siblings and examine possible contributing factors. Methods: The study was a Swedish population-based study of young adults who had lost a brother or sister to cancer, 2-9 years earlier. Of 240 eligible siblings, 174 (73%) completed a study-specific questionnaire. This study focused on whether the respondents had worked through their grief over the sibling's death and to what extent. Results: A majority (54%) of siblings stated that they had worked through their grief either not at all' or to some extent' at the time of investigation. In multiple regression analyses with unresolved grief as the dependent variable, 21% of the variance was explained by lack of social support and shorter time since loss. Conclusion: The majority of bereaved young adults had not worked through their grief over the sibling's death. A small group of siblings reported that they had not worked through their grief at all, which may be an indicator of prolonged grief. Lack of social support and more recent loss were associated with not having worked through the grief over the sibling's death.</p>
  • Högberg, Jonas, 1976-, et al. (författare)
  • Heterogeneity of microsphere distribution in resected liver and tumour tissue following selective intrahepatic radiotherapy
  • 2014
  • Ingår i: EJNMMI Research. - 2191-219X. ; 4:48
  • Tidskriftsartikel (refereegranskat)abstract
    • BACKGROUND Selective arterial radioembolisation of liver tumours has increased, because of encouraging efficacy reports; however, therapeutic parameters used in external beam therapy are not applicable for understanding and predicting potential toxicity and efficacy, necessitating further studies of the physical and biological characteristics of radioembolisation. The aim was to characterise heterogeneity in the distribution of microspheres on a therapeutically relevant geometric scale considering the range of yttrium-90 (90Y) β-particles. METHODS Two patients with intrahepatic cholangiocarcinoma, marginally resectable, were treated by selective arterial embolisation with 90Y resin microspheres (SIRTEX®), followed 9 days post-infusion by resection, including macroscopic tumour tissue and surrounding normal liver parenchyma. Formalin-fixed, sectioned resected tissues were exposed to autoradiographic films, or tissue biopsies of various dimensions were punched out for activity measurements and microscopy. RESULTS Autoradiography and activity measurements revealed a higher activity in tumour tissue compared to normal liver parenchyma. Heterogeneity in activity distribution was evident in both normal liver and tumour tissue. Activity measurements were analysed in relation to the sample mass (5 to 422 mg), and heterogeneities were detected by statistical means; the larger the tissue biopsies, the smaller was the coefficient of variation. The skewness of the activity distributions increased with decreasing biopsy mass. CONCLUSIONS The tissue activity distributions in normal tissue were heterogeneous on a relevant geometric scale considering the range of the ionising electrons. Given the similar and repetitive structure of the liver parenchyma, this finding could partly explain the tolerance of a relatively high mean absorbed dose to the liver parenchyma from β-particles. Keywords: Radioembolisation; Y-90; SIR; Surgery; Activity heterogeneity
  • Aleksandrova, Krasimira, et al. (författare)
  • Inflammatory and metabolic biomarkers and risk of liver and bilary tract cancer
  • 2014
  • Ingår i: Hepatology. - Wiley-Blackwell. - 0270-9139 .- 1527-3350. ; 60:3, s. 858-871
  • Tidskriftsartikel (refereegranskat)abstract
    • <p>Obesity and associated metabolic disorders have been implicated in liver carcinogenesis; however there is little data on the role of obesity-related biomarkers on liver cancer risk. We studied prospectively the association of inflammatory and metabolic biomarkers with risks of hepatocellular carcinoma (HCC), intra-hepatic bile duct (IBD) and gallbladder and bilary tract cancers outside of the liver (GBTC) in a nested case-control study within the European Prospective Investigation into Cancer and Nutrition (EPIC). Over an average of 7.7 years, 296 participants developed HCC (n=125), GBTC (n=137) or IBD (n=34). Using risk set sampling, controls were selected in a 2:1 ratio and matched for recruitment center, age, sex, fasting status, time of blood collection. Baseline serum concentrations of C-reactive protein (CRP), interleukin-6 (IL-6), C-peptide, total, high-molecular-weight (HMW) adiponectin, leptin, fetuin-a, and glutamatdehydrogenase (GLDH) were measured and incidence rate ratios (IRRs) and 95% confidence intervals (CI-s) estimated using conditional logistic regression. After adjustment for lifestyle factors, diabetes, hepatitis infection and adiposity measures, higher concentrations of CRP, IL-6, C-peptide and non-HMW adiponectin were associated with higher risk of HCC (IRR per doubling of concentrations = 1.22; 95%CI = 1.02-1.46, P=0.03; 1.90; 95%CI = 1.30-2.77, P=0.001; 2.25; 95%CI = 1.43-3.54, P=0.0005 and 2.09; 95%CI = 1.19-3.67, P=0.01, respectively). CRP was associated also with risk of GBTC (IRR = 1.22; 95%CI = 1.05-1.42, P=0.01). GLDH was associated with risks of HCC (IRR = 1.62; 95%CI = 1.25-2.11, P=0.0003) and IBD (IRR = 10.5; 95%CI = 2.20-50.90, P=0.003). The continuous net reclassification index was 0.63 for CRP, IL-6, C-peptide and non-HMW adiponectin, and 0.46 for GLDH indicating good predictive ability of these biomarkers. Conclusion: Elevated levels of biomarkers of inflammation and hyperinsulinemia are associated with a higher risk of HCC, independent of obesity and established liver cancer risk factors.</p>
  • Vermeulen, Esther, et al. (författare)
  • Dietary Flavonoid Intake and Esophageal Cancer Risk in the European Prospective Investigation into Cancer and Nutrition Cohort
  • 2013
  • Ingår i: American Journal of Epidemiology. - Oxford University Press. - 0002-9262. ; 178:4, s. 570-581
  • Tidskriftsartikel (refereegranskat)abstract
    • We prospectively investigated dietary flavonoid intake and esophageal cancer risk in the European Prospective Investigation into Cancer and Nutrition (EPIC) cohort. The study included 477,312 adult subjects from 10 European countries. At baseline, country-specific validated dietary questionnaires were used. During a mean follow-up of 11 years (1992-2010), there were 341 incident esophageal cancer cases, of which 142 were esophageal adenocarcinoma (EAC), 176 were esophageal squamous cell carcinoma (ESCC), and 23 were other types of esophageal cancer. In crude models, a doubling in total dietary flavonoid intake was inversely associated with esophageal cancer risk (hazard ratio (HR) (log(2))=0.87, 95% confidence interval (CI): 0.78, 0.98) but not in multi-variable models (HR (log(2))=0.97, 95% CI: 0.86, 1.10). After covariate adjustment, no statistically significant association was found between any flavonoid subclass and esophageal cancer, EAC, or ESCC. However, among current smokers, flavonols were statistically significantly associated with a reduced esophageal cancer risk (HR (log(2)) = 0.72, 95% CI: 0.56, 0.94), whereas total flavonoids, flavanols, and flavan-3-ol monomers tended to be inversely associated with esophageal cancer risk. No associations were found in either never or former smokers. These findings suggest that dietary flavonoid intake was not associated with overall esophageal cancer, EAC, or ESCC risk, although total flavonoids and some flavonoid subclasses, particularly flavonols, may reduce the esophageal cancer risk among current smokers.
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