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Träfflista för sökning "WFRF:(Hardell Lennart) srt2:(2005-2009)"

Sökning: WFRF:(Hardell Lennart) > (2005-2009)

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1.
  • Hardell, Karin, 1975-, et al. (författare)
  • Concentrations of organohalogen compounds and titres of antibodies to Epstein-Barr virus antigens and the risk for non-Hodgkin lymphoma
  • 2009
  • Ingår i: Oncology Reports. - Athens, Greece : Spandidos Publications. - 1791-2431 .- 1021-335X. ; 21:6, s. 1567-1576
  • Tidskriftsartikel (refereegranskat)abstract
    • Exposure to some pesticides and persistent organic pollutants (POPs) has been indicated to be a risk factor for non-Hodgkin's lymphoma (NHL). Epstein-Barr virus (EBV) has been associated with some subgroups of NHL. In a previous study we found an interaction between high concentrations of some POPs and titres of antibodies to EBV early antigen (EA IgG) in relation to NHL. In the present study we measured lipid adjusted plasma concentrations of 35 congeners of polychlorinated biphenyls (PCB). p,p'-dichlorodiphenyldichloroethyelene (p,p'-DDE), hexachlorobenzene (HCB), seven subgroups of chlordanes (cis-heptachlorepoxide, cis-chlordane, trans-chlordane, oxychlordane, MC6, trans-nonachlordane, cis-nonachlordane) and one polybrominated diphenylether (PBDE) congener (no. 47) in 99 cases with NHL and 99 population based controls. Odds ratios (OR) for NHL were estimated. Sum of PCBs > median in the controls gave odds ratio (OR) 2.0, 95% confidence interval (CI) 0.99-3.9. High sum of chlordanes yielded OR 2.3, 95% CI 1.2-4.5. An interaction with EBV EA IgG was found. High sum of PCB gave OR 5.2, 95% CI 1.9-14 in the group with EA IgG > 40. Similarly HCB yielded OR 5.3, 95% CI 1.9-15, pp'-DDE gave OR 3.3, 95% CI 1.4-7.7 and sum of chlordanes yielded OR 6.8, 95% CI 2.3-20, whereas no association was found with PBDE. In summary this study confirmed an association between certain POPs and NHL with all interaction with titre of IgG antibody to EBV EA.
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2.
  • Hardell, Lennart, 1944-, et al. (författare)
  • Decreased survival in pancreatic cancer patients with high concentrations of organochlorines in adipose tissue
  • 2007
  • Ingår i: Biomedicine and Pharmacotherapy. - : Elsevier BV. - 0753-3322 .- 1950-6007. ; 61:10, s. 659-664
  • Tidskriftsartikel (refereegranskat)abstract
    • We analysed adipose tissue concentrations of persistent organic pollutants (POPs) in 21 cases with exocrine pancreatic cancer. The comparison group consisted of 59 subjects. Significantly increased concentrations of polychlorinated biphenyls (PCBs), hexachlorobenzene (HCB), sum of chlordanes and polybrominated diphenylethers (PBDEs) were found in the cases. For 1,1,-dichloro-2,2-bis(p-chlorophenyl)-ethylene (p,p'-DDE) no significant difference was seen. For PCBs no odds ratio (OR) could be calculated since all cases had concentration>median in controls used as a cut-off. HCB yielded OR=53.0, 95% confidence interval (CI)=4.64-605 and sum of chlordanes OR=18.4, 95% CI=2.71-124 whereas OR was not significantly increased for p,p'-DDE or PBDEs. Body mass index (BMI) at the time of tissue sampling was significantly lower for the cases. This might have influenced the results. Using BMI one year previously or decreasing the concentrations of POPs with the same percentage as weight loss among the cases did not change the results. Survival of the cases was shorter in the group with the concentration of POPs>median among cases, significantly so for the sum of PCBs (147 vs. 294 days), p,p'-DDE (134 vs. 302 days), and sum of chlordanes (142 vs. 294 days) in the high and low group, respectively. The results were based on a low number of cases and should be interpreted with caution.
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3.
  • Hardell, Lennart, et al. (författare)
  • Increased concentrations of certain persistent organic pollutants in subjects with self-reported electromagnetic hypersensitivity : a pilot study
  • 2008
  • Ingår i: Electromagnetic Biology and Medicine. - : Informa UK Limited. - 1536-8378 .- 1536-8386. ; 27:2, s. 197-203
  • Tidskriftsartikel (refereegranskat)abstract
    • Electromagnetic hypersensitivity (EHS) is used for a variety of subjective symptoms related to exposure to electromagnetic fields (EMF). The aim of this pilot study was to analyze the concentrations of certain persistent organic pollutants (POPs) in subjects with self-reported EHS. In total, 13 EHS subjects and 21 controls were included, all female. The concentration of several POPs was higher in EHS subjects than in controls. Lower concentrations were found for hexachlorobenzene and two types of chlordanes. The only significantly increased odds ratios (ORs) were found for polybrominated diphenyl ether (PBDE) #47 yielding OR=11.7, 95% confidence interval (CI)=1.45-94.7 and the chlordane metabolite MC6 with OR=11.2, 95% CI=1.18-106. The results were based on low numbers and must be interpreted with caution. This hypothesis generating study indicates the necessity of a larger investigation on this issue.
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4.
  • Ahrens, Wolfgang, et al. (författare)
  • Occupational exposure to endocrine-disrupting compounds and biliary tract cancer among men
  • 2007
  • Ingår i: Scandinavian Journal of Work, Environment and Health. - : Scandinavian Journal of Work, Environment and Health. - 0355-3140 .- 1795-990X. ; 33:5, s. 387-396
  • Tidskriftsartikel (refereegranskat)abstract
    • Objectives This study investigated the association between cancer of the extrahepatic biliary tract and exposure to endocrine-disrupting compounds. Methods Altogether 183 men with histologically confirmed carcinoma of the extrahepatic biliary tract and 1938 matched controls were interviewed between 1995 and 1997 in the frame of an international multicenter case-control study in six European countries (Denmark, France, Germany, Italy, Spain, and Sweden). Selfreported job descriptions were converted to semiquantitative variables (intensity, probability, and duration of exposure) for 14 endocrine-disrupting compounds. The cases were compared with 1421 population controls and 517 colon adenocarcinoma patients. Odds ratios (OR) and 95% confidence intervals (95% CI) were obtained with unconditional logistic regression and adjusted for age, country, and gallstones. Results Occupational exposure to endocrine-disrupting compounds resulted in an OR of 1.4 (95% CI 1.0-2. 1) with no dose-effect relationship for cumulative exposure (low: OR 1.3, 95% CI 0.6-3.0; medium: OR 1.5, 95% CI0.8-2.7; high: OR 1.4, 95% CI 0.9-2.4) (only index participants). The elevated risk was restricted to extrahepatic bile ducts and ampulla Vateri (OR 1.7, 95% CI 1.0-2.6). The adjusted OR for cancer of the extrahepatic biliary tract after exposure to polychlorinated biphenyls was 2.8 (95% CI 1.3-5.9, only index participants). Conclusions The data show some associations between exposure to endocrine-disrupting compounds in the workplace and the risk for cancer of the extrahepatic biliary tract among men, particularly for the extrahepatic bile duct and ampulla of Vater. Polychlorinated biphenyls could possibly be a strong risk factor.
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5.
  • Ahrens, Wolfgang, et al. (författare)
  • Risk factors for extrahepatic biliary tract carcinoma in men: medical conditions and lifestyle: results from a European multicentre case-control study
  • 2007
  • Ingår i: European Journal of Gastroenterology and Hepathology. - 1473-5687. ; 19:8, s. 623-630
  • Tidskriftsartikel (refereegranskat)abstract
    • OBJECTIVES: To identify risk factors of carcinoma of the extrahepatic biliary tract in men. METHODS: Newly diagnosed and histologically confirmed patients, 35-70 years old, were interviewed between 1995 and 1997 in Denmark, Sweden, France, Germany and Italy. Population controls were frequency-matched by age and region. Adjusted odds ratios and 95%-confidence intervals were estimated by logistic regression. RESULTS: The analysis included 153 patients and 1421 controls. The participation proportion was 71% for patients and 61% for controls. Gallstone disease was corroborated as a risk factor for extrahepatic biliary tract carcinoma in men (odds ratio 2.49; 95% confidence interval 1.32-4.70), particularly for gall bladder tumors (odds ratio 4.68; 95% confidence interval 1.85-11.84). For a body mass index [height (m) divided by squared weight (kg2)] >30 at age 35 years, an excess risk was observed (odds ratio 2.58; 95% confidence interval 1.07-6.23, reference: body mass index 18.5-25) that was even stronger if the body mass index was >30 for the lowest weight in adulthood (odds ratio 4.68; 95% confidence interval 1.13-19.40). Infection of the gall bladder, chronic inflammatory bowel disease, hepatitis or smoking showed no clear association, whereas some increase in risk was suggested for consumption of 40-80 g alcohol per day and more. CONCLUSIONS: Our study corroborates gallstones as a risk indicator in extrahepatic biliary tract carcinoma. Permanent overweight and obesity in adult life was identified as a strong risk factor for extrahepatic biliary tract carcinoma, whereas we did not find any strong lifestyle-associated risk factors. Inconsistent results across studies concerning the association of extrahepatic biliary tract carcinoma with overweight and obesity may be explained by the different approaches to assess this variable.
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6.
  • Belpomme, D., et al. (författare)
  • The growing incidence of cancer : Role of lifestyle and screening detection (Review)
  • 2007
  • Ingår i: International Journal of Oncology. - : Spandidos Publications. - 1019-6439 .- 1791-2423. ; 30:5, s. 1037-1049
  • Forskningsöversikt (refereegranskat)abstract
    • The increasing incidence of a variety of cancers after the Second World War confronts scientists with the question of their origin. In Western countries, expansion and ageing of the population, as well as progress in cancer detection using new diagnostic and screening tests cannot fully account for the observed growing incidence of cancer. Our hypothesis is that environmental factors play a more important role in cancer genesis than it is usually agreed: i) over the last 2-3 decades, alcohol consumption and tobacco smoking in men have significantly decreased; ii) obesity is increasing in many countries, but the growing incidence of cancer also concerns cancers not related to obesity nor to other lifestyle-related factors; iii) there is evidence that the environment has changed over the same time scale as the recent rise in cancer incidence, and that this change included the accumulation of many new carcinogenic factors in the environment; iv) genetic susceptibility to cancer due to genetic polymorphism cannot have changed over one generation and actually favours the role of exogenous factors through gene-environment interactions; v) age is not the unique factor to be considered since the rising incidence of cancers is seen across all age categories, including children; vi) the fetus is specifically vulnerable to exogenous factors. A fetal exposure during a critical window period may explain why current epidemiological studies may be negative in adults. We therefore propose that the involuntary exposure to many carcinogens in the environment contributes to the rising trend in cancer incidence.
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7.
  • Belpomme, D., et al. (författare)
  • The multitude and diversity of environmental carcinogens
  • 2007
  • Ingår i: Environmental Research. - : Elsevier BV. - 0013-9351 .- 1096-0953. ; 105:3, s. 414-429
  • Tidskriftsartikel (refereegranskat)abstract
    • We have recently proposed that lifestyle-related factors, screening and aging cannot fully account for the present overall growing incidence of cancer. In order to propose the concept that in addition to lifestyle related factors, exogenous environmental factors may play a more important role in carcinogenesis than it is expected, and may therefore account for the growing incidence of cancer, we overview herein environmental factors, rated as certainly or potentially carcinogenic by the International Agency for Research on Cancer (IARC). We thus analyze the carcinogenic effect of microorganisms (including viruses), radiations (including radioactivity, UV and pulsed electromagnetic fields) and xenochemicals. Chemicals related to environmental pollution appear to be of critical importance, since they can induce occupational cancers as well as other cancers. Of major concerns are: outdoor air pollution by carbon particles associated with polycyclic aromatic hydrocarbons; indoor air pollution by environmental tobacco smoke, formaldehyde and volatile organic compounds such as benzene and 1,3 butadiene, which may particularly affect children, and food pollution by food additives and by carcinogenic contaminants such as nitrates, pesticides, dioxins and other organochlorines. In addition, carcinogenic metals and metalloids, pharmaceutical medicines and cosmetics may be involved. Although the risk fraction attributable to environmental factors is still unknown, this long list of carcinogenic and especially mutagenic factors supports our working hypothesis according to which numerous cancers may in fact be caused by the recent modification of our environment. (C) 2007 Elsevier Inc. All rights reserved.
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8.
  • Dreifaldt, Ann Charlotte, 1964- (författare)
  • Epidemiological aspects on malignant diseases in childhood
  • 2006
  • Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
    • The trends of malignant diseases in children aged 0 to 14 years, reported to the Swedish Cancer Registry 1960–1998 (n=9 298) were analyzed. The most common diagnoses were leukemia, 29.7%, tumors of the central nervous system (CNS), 27.6%, and lymphomas, 10.2%. The average annual incidence rate of childhood malignant diseases 1990–1998 was 16.19/100 000 person-years. Average annual change in incidence rate of all childhood cancer was +1.01% (95% confidence interval (CI)=0.80-1.22). Statistically significant increase was seen for leukemia +0.85% (95% CI=0.42–1.28), lymphomas +1.87% (95% CI=1.17–2.58), CNS tumors +1.45% (95% CI=1.02–1.88), sympathetic nervous system tumors +1.61% (95% CI=0.79–2.44), hepatic tumors +2.62% (95% CI=2.02–3.21), and germ cell and gonadal tumors +1.21% (95% CI=0.23–2.19). Children are exposed to persistent organic pollutants (POPs) during fetal life and breast-feeding. In a case-control study including cases of childhood cancer reported to the Cancer Registry 1988–1991 (n=962) we used breastfeeding duration as a surrogate for exposure to POPs. One matched control per case was used. Information on breast-feeding, vaccinations and chronic illness was collected from copies of the children’s Child Health Center records. Overall, breast-feeding did not affect the risk of childhood cancer, OR=1.0 (95% CI=0.7–1.3) using breast-feeding up to one month as reference. For non-Hodgkin lymphoma (NHL) OR for breast-feeding for >1 month yielded OR=5.0 (95% CI=1.1–23). No association was seen between preschool vaccinations and childhood cancer except for lymphomas and measles/measles-mumps-rubella vaccination, OR=0.2 (95% CI=0.1–0.6). Increased risk of all cancer was found for congenital malformations, OR=1.7 (95% CI=0.97–2.9), especially of leukemia, OR=3.0 (95% CI=1.5–5.8). Children with disorders of brain function had an increased risk of all cancer, OR=6.0 (95% CI=1.3–27), especially of brain tumors, OR=10 (95% CI=1.3–78). A childhood population expected to be more exposed to POPs is children of fishermen. In a register-based study, the cancer incidence rates in a cohort of fishermen children (at age 0-19 years) were compared to the rates of referent children. A modestly increased incidence rate ratio (IRR) of childhood cancer was found, IRR=1.38 (95% CI=0.96–2.00) and an increased IRR for acute lymphoid leukemia, IRR=2.65 (95% CI=1.005–6.97). In west coast fishermen children, an increased IRR was observed for NHL, IRR=3.19 (95% CI=0.98–10.4).
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9.
  • Eriksson, Mikael, et al. (författare)
  • Pesticide exposure as risk factor for non-Hodgkin lymphoma including histopathological subgroup analysis.
  • 2008
  • Ingår i: International Journal of Cancer. - : Wiley. - 0020-7136 .- 1097-0215. ; 123:7, s. 1657-1663
  • Tidskriftsartikel (refereegranskat)abstract
    • We report a population based case-control study of exposure to pesticides as risk factor for non-Hodgkin lymphoma (NHL). Male and female subjects aged 18-74 years living in Sweden were included during December 1, 1999, to April 30, 2002. Controls were selected from the national population registry. Exposure to different agents was assessed by questionnaire. In total 910 (91 %) cases and 1016 (92%) controls participated. Exposure to herbicides gave odds ratio (OR) 1.72, 95% confidence interval (CI) 1.18-2.51. Regarding phenoxyacetic acids highest risk was calculated for MCPA; OR 2.81, 95% CI 1.27-6.22, all these cases had a latency period >10 years. Exposure to glyphosate gave OR 2.02, 95% CI 1.10-3.71 and with >10 years latency period OR 2.26, 95% CI 1.16-4.40. Insecticides overall gave OR 1.28, 95% CI 0.96-1.72 and impregnating agents OR 1.57, 95% CI 1.07-2.30. Results are also presented for different entities of NHL. In conclusion our study confirmed an association between exposure to phenoxyacetic acids and NHL and the association with glyphosate was considerably strengthened. (c) 2008 Wiley-Liss, Inc.
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10.
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