24 results on '"A. Ranft"'
Search Results
2. Behavioral Sexual Dimorphism in School-Age Children and Early Developmental Exposure to Dioxins and PCBs: A Follow-Up Study of the Duisburg Cohort.
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Winneke, Gerhard, Ranft, Ulrich, Wittsiepe, Jürgen, Kasper-Sonnenberg, Monika, Fürst, Peter, Krämer, Ursula, Seitner, Gabriele, and Wilhelm, Michael
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APGAR score , *BREAST milk , *CHILD behavior , *CONFIDENCE intervals , *DIOXINS , *POLYCHLORINATED biphenyls , *QUESTIONNAIRES , *RESEARCH funding , *SEX distribution , *STATISTICS , *DATA analysis , *MULTIPLE regression analysis , *DATA analysis software , *DESCRIPTIVE statistics - Abstract
Background: Polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) and polychlorinated biphenyls (PCBs) are persistent organic pollutants that have been characterized as endocrine-disrupting chemicals (EDCs). Objectives: Within the Duisburg birth cohort study, we studied associations of prenatal exposure to PCDD/Fs and PCBs with parent-reported sexually dimorphic behavior in children. Methods: We measured lipid-based and WHO2005-TEQ (toxic equivalents established in 2005 by the World Health Organization)–standardized PCDD/Fs and PCBs in maternal blood samples and in early breast milk using gas chromatography/high-resolution mass spectrometry. At the child’s age of 6–8 years, parents (mostly mothers) reported sex-typical characteristics, preferred toys, and play activities using the Pre-School Activities Inventory (PSAI), which was used to derive feminine, masculine, and difference (feminine – masculine) scores. We estimated exposure–outcome associations using multivariate linear regression. A total of 91–109 children were included in this follow-up. Results: Mean blood levels of summed WHO2005-TEQ–standardized dioxins (ΣPCDD/Fs) were 14.5 ± 6.4 pg/g blood lipids, and ΣPCBs were 6.9 ± 3.8 pg/g blood lipids, with similar values for milk lipids. Regression analyses revealed some highly significant interactions between sex and exposure— such as for ΣPCBs in milk, pronounced positive (boys: β = 3.24; CI = 1.35, 5.14) or negative (girls: β = –3.59; CI = –1.10, –6.08) associations with reported femininity. Less pronounced and mostly insignificant but consistent associations were found for the masculinity score, positive for boys and negative for girls. Conclusions: Given our results and the findings of previous studies, we conclude that there is sufficient evidence that these EDCs modify behavioral sexual dimorphism in children, presumably by interacting with the hypothalamic–pituitary–gonadal axis. [ABSTRACT FROM AUTHOR]
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- 2014
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3. Prohepcidin, B-Type Natriuretic Peptide, and Iron Status in a Cohort of Elderly Women from the Rhine-Ruhr Area.
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Henry, Jana, Casjens, Swaantje, Schikowski, Tamara, Stachon, Axel, Germing, Alfried, Ranft, Ulrich, Lehnert, Martin, Harth, Volker, Krämer, Ursula, Brüning, Thomas, and Pesch, Beate
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IRON in the body ,IRON deficiency anemia ,ANEMIA ,METABOLISM ,DISEASES in older women - Abstract
No abstract available Copyright © 2010 S. Karger AG, Basel [ABSTRACT FROM AUTHOR]
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- 2010
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4. Traffic-Related Air Pollution and Incident Type 2 Diabetes: Results from the SALIA Cohort Study.
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Krämer, Ursula, Herder, Christian, Sugiri, Dorothea, Strassburger, Klaus, Schikowski, Tamara, Ranft, Ulrich, and Rathmann, Wolfgang
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AIR pollution ,CITY traffic ,TYPE 2 diabetes risk factors ,CROSS-sectional method ,QUESTIONNAIRES - Abstract
BACKGROUND: Cross-sectional and ecological studies indicate that air pollution may be a risk factor for type 2 diabetes, but prospective data are lacking. OBJECTIVE: We examined the association between traffic-related air pollution and incident type 2 diabetes. DESIGN: Between 1985 and 1994, cross-sectional surveys were performed in the highly industrialized Ruhr district (West Germany); a follow-up investigation was conducted in 2006 using data from the Study on the Influence of Air Pollution on Lung, Inflammation and Aging (SALIA) cohort. PARTICIPANTS: 1,775 nondiabetic women who were 54-55 years old at baseline participated in both baseline and follow-up investigations and had complete information available. MATERIALS AND METHODS: Using questionnaires, we assessed 16-year incidence (1990-2006) of type 2 diabetes and information about covariates. Complement factor C3c as marker for subclinical inflammation was measured at baseline. Individual exposure to traffic-related particulate matter (PM) and nitrogen dioxide was determined at different spatial scales. RESULTS: Between 1990 and 2006, 87 (10.5%) new cases of diabetes were reported among the SALIA cohort members. The hazards for diabetes were increased by 15-42% per interquartile range of PM or traffic-related exposure. The associations persisted when different spatial scales were used to assess exposure and remained robust after adjusting for age, body mass index, socioeconomic status, and exposure to several non--traffic-related sources of air pollution. C3c was associated with PM pollution at baseline and was a strong independent predictor of incident diabetes. Exploratory analyses indicated that women with high C3c blood levels were more susceptible for PM-related excess risk of diabetes than were women with low C3c levels. CONCLUSIONS: Traffic-related air pollution is associated with incident type 2 diabetes among elderly women. Subclinical inflammation may be a mechanism linking air pollution with type 2 diabetes. RELEVANCE TO CLINICAL PRACTICE: Our study identifies traffic-related air pollution as a novel and potentially modifiable risk factor of type 2 diabetes. [ABSTRACT FROM AUTHOR]
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- 2010
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5. Does airborne nickel exposure induce nickel sensitization?
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Mann, Eugen, Ranft, Ulrich, Eberwein, Georg, Gladtke, Dieter, Sugiri, Dorothee, Behrendt, Heidrun, Ring, Johannes, Schäfer, Torsten, Begerow, Jutta, Wittsiepe, Jürgen, Krämer, Ursula, and Wilhelm, Michael
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ALLERGIES , *AIR quality , *IMMUNOLOGIC diseases , *EMISSION standards - Abstract
Background and objective: Nickel is one of the most prevalent causes of contact allergy in the general population. This study focuses on human exposure to airborne nickel and its potential to induce allergic sensitization. Materials and methods: The study group consisted of 309 children at school-starter age living in the West of Germany in the vicinity of two industrial sources and in a rural town without nearby point sources of nickel. An exposure assessment of nickel in ambient air was available for children in the Ruhr district using routinely monitored ambient air quality data and dispersion modelling. Internal nickel exposure was assessed by nickel concentrations in morning urine samples of the children. Results: The observed nickel sensitization prevalence rates varied between 12.6% and 30.7%. Statistically significant associations were showed between exposure to nickel in ambient air and urinary nickel concentration as well as between urinary nickel concentration and nickel sensitization. Furthermore, an elevated prevalence of nickel sensitization was associated with exposure to increased nickel concentrations in ambient air. Conclusion: The observed associations support the assumption that inhaled nickel in ambient air might be a risk factor for nickel sensitization; further studies in larger collectives are necessary. [ABSTRACT FROM AUTHOR]
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- 2010
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6. Differences in allergy trends between East and West Germany and possible explanations.
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Krämer, U., Oppermann, H., Ranft, U., Schäfer, T., Ring, J., and Behrendt, H.
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ALLERGIES ,ASTHMA ,ATOPY ,ECZEMA ,ASTHMA in children - Abstract
Background At the time of the German reunification in 1990, manifestations of most allergic diseases were less prevalent in East than in West Germany. It was hypothesized that these East–West differences would diminish with lifestyle and pollution changes in East Germany. Objective To investigate whether changes in the prevalence of asthma, hayfever, eczema or allergic sensitization in East Germany approached the levels seen in West Germany and to identify possible lifestyle or environmental factors that may influence this. Methods Between 1991 and 2000, 6-year-old children from four areas in East Germany participated in an annual survey. Every 3rd year, a parallel survey was performed in four areas of West Germany. In total, 31 903 children were included. Parents completed a questionnaire regarding lifestyle factors and diagnoses and symptoms of asthma, hayfever and eczema. In sub-areas, eczema was clinically assessed by a dermatologist. Specific IgE sensitization was determined for 6121 children. Logistic regression was used to analyse differences in time trends and the influence of lifestyle and pollution changes. Results Lifestyle and pollution changed significantly differently between East and West Germany. The trends in hayfever and in strong (specific IgE >3.5) sensitization against pollen, and particularly birch pollen, were steeper in East than in West Germany. The trend towards marked pollen sensitization was four times stronger (95% confidence interval 1.2–13.9) in East than in West Germany. Increasing numbers of only children, less single-room heating with fossil fuels and increasing importance of traffic-related pollution in East Germany partly explained these differences in time trends. Conclusions Hayfever and sensitization against pollen were the most sensitive allergic manifestations to changes experienced specifically in East Germany. Influences of lifestyle (single-room heating, living as a single child) were important in explaining different trend developments. Cite this as: U. Krämer, H. Oppermann, U. Ranft, T. Schäfer, J. Ring and H. Behrendt, Clinical & Experimental Allergy, 2010 (40) 289– 298. [ABSTRACT FROM AUTHOR]
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- 2010
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7. Decline in air pollution and change in prevalencein respiratory symptoms and chronic obstructivepulmonary disease in elderly women.
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Schikowski, Tamara, Ranft, Ulrich, Sugiri, Dorothee, Vierkötter, Andrea, Brüning, Thomas, Harth, Volker, and Krämer, Ursula
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AIR pollution measurement , *LUNG diseases , *RESPIRATORY diseases , *OLDER women - Abstract
Background: While adverse effects of exposure to air pollutants on respiratory health are well studied, little is known about the effect of a reduction in air pollutants on chronic respiratory symptoms and diseases. We investigated whether different declines in air pollution levels in industrialised and rural areas in Germany were associated with changes in respiratory health over a period of about 20 years. Methods: We used data from the SALIA cohort study in Germany (Study on the influence of Air pollution on Lung function, Inflammation and Aging) to assess the association between the prevalence of chronic obstructive pulmonary disease (COPD) and chronic respiratory symptoms and the decline in air pollution exposure. In 1985- 1994, 4874 women aged 55-years took part in the baseline investigation. Of these, 2116 participated in a questionnaire follow-up in 2006 and in a subgroup of 402 women lung function was tested in 2008-2009. Generalized estimating equation (GEE) models were used to estimate the effect of a reduction in air pollution on respiratory symptoms and diseases. Results: Ambient air concentrations of particulate matter with aerodynamic size < 10 μm (PM10) declined in average by 20 μg/m³. Prevalence of chronic cough with phlegm production and mild COPD at baseline investigation compared to follow-up was 9.5% vs. 13.3% and 8.6% vs. 18.2%, respectively. A steeper decline of PM10 was observed in the industrialized areas in comparison to the rural area, this was associated with a weaker increase in prevalence of respiratory symptoms and COPD. Among women who never smoked, the prevalence of chronic cough with phlegm and mild COPD was estimated at 21.4% and 39.5%, respectively, if no air pollution reduction was assumed, and at 13.3% and 17.5%, respectively, if air pollution reduction was assumed. Conclusion: We concluded that parallel to the decline of ambient air pollution over the last 20 years in the Ruhr area the age-related increase in chronic respiratory diseases and symptoms appears to attenuate in the population of elderly women. [ABSTRACT FROM AUTHOR]
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- 2010
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8. Risk Factors for Human Infection with Puumala Virus, Southwestern Germany.
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Schwarz, Anne Caroline, Ranft, Ulrich, Piechotowski, Isolde, Childs, James E., and Brockmann, Stefan O.
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HANTAVIRUS diseases , *CLETHRIONOMYS , *PHANEROGAMS , *REGRESSION analysis , *POISSON processes - Abstract
Puumala virus, which causes nephropathia epidemica (NE), is the most prevalent hantavirus in Germany; bank voles serve as the main reservoir. During 2001-2007, most NE cases reported from Germany occurred in the southwestern state of Baden-Württemberg. We investigated the influence of bank vole habitats (beech forest, seed plants), vole food supply (beechnut mast), climate factors (winter and spring temperatures), and human population density on spatial and temporal occurrence of NE cases in Baden- Württemberg. Using Poisson-regression analyses, we found that all these factors influenced disease incidence. Furthermore, an independent trend of increasing incidence predicted that incidence will nearly double each year. The regression model explained 75% of the annual variation in NE incidence. The results suggest that environmental drivers lead to increasing incidence of NE infections in the southern part or even other parts of Germany. [ABSTRACT FROM AUTHOR]
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- 2009
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9. Lead Concentration in the Blood of Children and its Association with Lead in Soil and Ambient Air—Trends Between 1983 and 2000 in Duisburg.
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Ranft, Ulrich, Delschen, Thomas, Machtolf, Monika, Sugiri, Dorothee, and Wilhelm, Michael
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LEAD , *BLOOD , *CHILDREN , *GEOPHAGY , *AIR quality , *RISK assessment , *REGRESSION analysis - Abstract
Children are known to be at greater risk of exposure to lead (Pb). As Pb levels in ambient air have decreased during the last decades, the relative contribution of soil ingestion to ambient Pb exposure has increased. Using data from five cross-sectional studies conducted during 1983 to 2000 in the industrial city of Duisburg and comprising 843 children, 6-11 yr old, the aim of this study was to evaluate the contribution of Pb in soil to Pb blood levels of children in comparison to the contribution of Pb in air. Based on measurements of soil samples, the spatial distribution of Pb in soil (0-10 cm depth) was estimated for the study area. Pb exposure in ambient air was calculated using routinely monitored air quality data and Lagrange dispersion modeling. Individual exposure data were assigned using geo-coded home addresses. Multiple linear regression analysis was applied to estimate adjusted association measures. Median (95th percentile) level of Pb in soil was 206 (877) mg/kg. A simultaneous decrease in air Pb and blood Pb was observed (air: from 0.47 (0.47) to 0.03 (0.16) μg/m3; blood: from 86 (163) to 31 (68) μg/L). Significant associations between Pb in blood and Pb in the two exposure media were found. An increase of 0.44 μg/m3 Pb in air led to an rise in blood Pb by 155%, whereas blood Pb changed by about 63% if Pb in soil increased by 800 mg/kg. The results of the study were used for a local risk assessment and the definition of action values for Pb in soil. [ABSTRACT FROM AUTHOR]
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- 2008
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10. The Influence of Large-Scale Airborne Particle Decline and Traffic-Related Exposure on Children's Lung Function.
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Sugiri, Dorothea, Ranft, Ulrich, Schikowski, Tamara, and Krämer, Ursula
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AIR pollution , *INFECTIOUS disease transmission , *AIRBORNE infection , *LUNG diseases , *PULMONARY function tests , *JUVENILE diseases , *CHRONIC diseases , *CITY traffic - Abstract
Between 1991 and 2000, ambient air pollution in East Germany changed to resemble West German pollution levels: The concentration of total suspended particles (TSPs) decreased on a broad scale while traffic increased. During that time, we analyzed total lung capacity (TLC) and airway resistance (Raw) of East and West German children. We tested children 5-7 years of age (n = 2,574) with cooperation-independent body plethysmography in repeated cross sections. We used random-effect models to determine the mutually adjusted association between lung function and short-term and chronic particle exposure and its interaction with living near a busy road. Annual averages of TSPs declined from 77 to 44 µg/m3; averages on the day of investigation declined from 133 to 30 µg/m3. Differences in lung function between East and West German children vanished during the investigation time. The association of TSPs with Raw and TLC was stronger in children living > 50 m away from busy roads. East German children from this group had an Raw 2.5% higher [95% confidence interval (CI), 0.0-5.1%] per 40-µg/m3 increase of daily TSP averages. TLC decreased by 6.2% (95% CI, 0.04-11.6%) per 40-µg/m3 increase in annual mean TSPs, and this effect was equally pronounced in East and West Germany. TSP exposure decreased on a broad scale between 1991 and 2000. Lower concentrations of TSPs were associated with better measures of lung function in 6-year-old children. For children living near busy roads, this effect was diminished. [ABSTRACT FROM AUTHOR]
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- 2006
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11. Preschool children's health and its association with parental education and individual living conditions in East and West Germany.
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du Prel, Xianming, Krämer, Ursula, Behrendt, Heidrun, Ring, Johannes, Oppermann, Hanna, Schikowski, Tamara, and Ranft, Ulrich
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PRESCHOOL children ,EDUCATION of parents ,LIVING conditions ,REGRESSION analysis ,HEALTH - Abstract
Background: Social inequalities in health exist globally and are a major public health concern. This study focus on a systematic investigation into the associations between health indicators, living conditions and parental educational level as indicator of the social status of 6-year-old children living in West and East Germany in the decade after re-unification. Explanations of observed associations between parental education and health indicators were examined. Methods: All boys and girls entering elementary school and living in predefined areas of East and West Germany were invited to participate in a series of cross-sectional surveys conducted between 1991 and 2000. Data of 28,888 German children with information on parental education were included in the analysis. Information about educational level of the parents, individual living conditions, symptoms and diagnoses of infectious diseases and allergies were taken from questionnaire. At the day of investigation, atopic eczema was diagnosed by dermatologists, blood was taken for the determination of allergen-specific immuno-globulin E, height and weight was measured and lung function tests were done in subgroups. Regression analysis was applied to investigate the associations between the health indicators and parental educational level as well as the child's living conditions. Gender, urban/rural residency and year of survey were used to control for confounding. Results: Average response was 83% in East Germany and 71% in West Germany. Strong associations between health indicators and parental education were observed. Higher educated parents reported more diagnoses and symptoms than less educated. Children of higher educated parents were also more often sensitized against grass pollen or house dust mites, but had higher birth weights, lower airway resistance and were less overweight at the age of six. Furthermore, most of the health indicators were significantly associated with one or more living conditions such as living as a single child, unfavourable indoor air, damp housing condition, maternal smoking during pregnancy or living near a busy road. The total lung capacity and the prevalence of an atopic eczema at the day of investigation were the only health indicators those did not show associations with any of the predictor variables. Conclusion: Despite large differences in living conditions and evidence that some poor health outcomes were directly associated with poor living conditions, only few indicators demonstrated poorer health in social disadvantaged children. These were in both parts of Germany increased levels of overweight, higher airway resistance and, in East Germany only, reduced height in children with lower educated parents compared to those of higher education. In both East and West Germany, higher prevalence of airway symptoms was associated with a damp housing condition, and lower birth weight, reduced height and increased airway resistance at the age of six were associated with maternal smoking during pregnancy. The latter explained to a large extent the difference in birth weight and airway resistance between the educational groups. [ABSTRACT FROM AUTHOR]
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- 2006
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12. Human biomonitoring of cadmium and lead exposure of child–mother pairs from Germany living in the vicinity of industrial sources (Hot Spot Study NRW).
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Wilhelm, Michael, Eberwein, Georg, Hölzer, Jürgen, Begerow, Jutta, Sugiri, Dorothee, Gladtke, Dieter, and Ranft, Ulrich
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BIOLOGICAL monitoring ,CADMIUM ,LEAD ,AIR quality - Abstract
Abstract: Cadmium (Cd) and lead (Pb) exposure of children and their mothers living in the vicinity of industrial sources (metal refining) was assessed by a cross-sectional study performed in 2000. Study areas were the highly industrialized city of Duisburg and a rural area of North Rhine Westphalia, Germany. Exposure to ambient air concentrations of Cd and Pb was calculated from a Lagrange dispersion model using data sets from ambient air quality measurements. Cd in blood and urine and Pb in blood were measured by AAS. Mean age (years) was 6.4 (range 5.5–7.7) for children () and 36 (range 23–48) for mothers (). A total of 49% of the children were males. Factors suspected to influence metal levels in blood or urine were obtained by questionnaire. Individual ambient Cd and Pb levels according to the home address ranged from 0.5ng/m
3 (Cd) and 0.03μg/m3 (Pb) (rural area) up to 31.2ng/m3 (Cd) and 0.73μg/m3 (Pb) (industrialized area). Cd levels (geometric mean) in blood (0.13 and 0.10μg/L) and urine (both areas 0.09μg/L) of children did not differ between the two areas. Cd levels in blood and urine of mothers from the industrialized area were higher (blood 0.39μg/L, urine 0.28μg/L) than in those from the rural area (blood 0.25μg/L, urine 0.25μg/L). Pb levels in the blood of children from the industrialized area were higher (31μg/L) than in those from the rural area (21μg/L). Pb levels in the blood of mothers did not differ between the two areas (both 24μg/L). Pb levels in blood showed a significant association between child and mother (; , ). This did not apply for Cd in blood or urine. Regression analysis clearly revealed that Pb levels in ambient air were associated with Pb in the blood of children. Minor associations were also found between Cd in air and Cd in the blood of mothers and between Cd in air and urine of mothers. [Copyright &y& Elsevier]- Published
- 2005
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13. Changes in social inequality with respect to health-related living conditions of 6-year-old children in East Germany after re-unification.
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Xianming du Prel, Krämer, Ursula, and Ranft, Ulrich
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PUBLIC health ,LIVING conditions ,CHILDREN'S health ,SOCIAL groups - Abstract
Background: Since Germany re-unified in 1990, substantial social and economic changes have happened in East Germany, the former socialist German Democratic Republic (GDR). The aim of this study was to investigate the influence of these socio-economic changes in East Germany on the association between social status, measured by parental educational level, and health-related living conditions of children during the ten-year period after re-unification. Methods: In total, 25,864 6-year-old school beginner children (51.2% male and 48.8% female) participated in cross-sectional studies which have been repeated every year from 1991 to 2000 in East Germany. Parental educational level as a social indicator was the independent variable. Dependent variables included not employed parents, small living space and health-related living conditions (e. g. damp housing, single oven heating and living at busy road). The relationships were described by odds ratios using logistic regression. Results: A large overall effect of parental educational level on health-related living conditions was observed. The time trends showed that the situation regarding small living space, damp housing conditions and single oven heating improved from 1991 to 2000, while regarding not employed parents (1996-2000) and living at busy road (1991-2000) did not, but even deteriorated. 6-year old children with low parental educational level, who lived at the time of re-unification, were often under damp housing conditions and with single oven heating at homes. Nevertheless, this social inequality has almost vanished ten years later. In contrast, we found an increasing gap between low and high parental educational level with respect to the proportion of parents who were not employed (22%: 4% gain), or lived under cramped housing conditions (22%: 37% reduction), or close to a busy road (7% gain: 2% reduction). Conclusion: The social inequalities which already existed under the socialist system in East Germany persisted in the system of social market economy between 1991 and 2000. 6-year-old children from families with the lowest social status were living under the worst domestic conditions (e. g. living at busy road, having damp housing conditions, single oven heating and small living space) and for some conditions (e. g. living at busy road and having small living space) the gap between low and high social status was even bigger in 2000 than in 1991. [ABSTRACT FROM AUTHOR]
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- 2005
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14. Occupational risk factors for renal cell carcinoma: agent-specific results from a case-control study in Germany. MURC Study Group. Multicenter urothelial and renal cancer study.
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Pesch, B, Haerting, J, Ranft, U, Klimpel, A, Oelschlägel, B, and Schill, W
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COMPARATIVE studies ,KIDNEY tumors ,RESEARCH methodology ,MEDICAL cooperation ,OCCUPATIONAL diseases ,RENAL cell carcinoma ,RESEARCH ,SMOKING ,LOGISTIC regression analysis ,OCCUPATIONAL hazards ,ENVIRONMENTAL exposure ,EVALUATION research ,CASE-control method - Abstract
Background: This case-control study was conducted to estimate the renal cell cancer (RCC) risk for exposure to occupation-related agents, besides other suspected risk factors.Methods: In a population-based multicentre study, 935 incident RCC cases and 4298 controls matched for region, sex, and age were interviewed between 1991 and 1995 for their occupational history and lifestyle habits. Agent-specific exposure was expert-rated with two job-exposure matrices and a job task-exposure matrix. Conditional logistic regression was used to calculate smoking adjusted odds ratios (OR).Results: Very long exposures in the chemical, rubber, and printing industries were associated with risk for RCC. Males considered as 'substantially exposed to organic solvents' showed a significant excess risk (OR = 1.6, 95% CI : 1.1-2.3). In females substantial exposure to solvents was also a significant risk factor (OR = 2.1, 95% CI : 1.0-4.4). Excess risks were shown for high exposure to cadmium (OR = 1.4, 95% CI : 1.1-1.8, in men, OR = 2.5, 95% CI : 1.2-5.3 in women), for substantial exposure to lead (OR = 1.5, 95% CI : 1.0-2.3, in men, OR = 2.6, 95% CI : 1.2-5.5, in women) and to solder fumes (OR = 1.5, 95% CI : 1.0-2.4, in men). In females, an excess risk for the task 'soldering, welding, milling' was found (OR = 3.0, 95% CI : 1.1-7.8). Exposure to paints, mineral oils, cutting fluids, benzene, polycyclic aromatic hydrocarbons, and asbestos showed an association with RCC development.Conclusions: Our results indicate that substantial exposure to metals and solvents may be nephrocarcinogenic. There is evidence for a gender-specific susceptibility of the kidneys. [ABSTRACT FROM AUTHOR]- Published
- 2000
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15. Lack of Neurodevelopmental Adversity by Prenatal Exposure of Infants to Current Lowered PCB Levels: Comparison of Two German Birth Cohort Studies.
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Wilhelm, Michael, Ranft, Ulrich, Krämer, Ursula, Wittsiepe, Jürgen, Lemm, Friederike, Fürst, Peter, Eberwein, Georg, and Winneke, Gerhard
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POLYCHLORINATED biphenyls , *POLLUTANTS , *COGNITIVE development , *MOTOR ability in children , *PRENATAL care , *INFANTS , *COHORT analysis - Abstract
Polychlorinated biphenyls (PCBs), persistent environmental contaminants, may affect neurodevelopment of infants following prenatal exposure. A negative impact of prenatal PCB exposure on neurodevelopment was found in the Dusseldorf (Germany) cohort study (1993-2000). PCB levels of the sum of the three indicator congeners in breast milk were negatively associated with mental/motor development as assessed by the Bayley Scales of Infant Development (BSID) in infants. Since general exposure to PCB has decreased, a new birth cohort study was initiated in 2000 in the industrial city of Duisburg, which is located 30 km downstream from Dusseldorf on the River Rhine. A subgroup of the Duisburg birth cohort study was used to compare PCB exposure and developmental effects with results from the Dusseldorf cohort. The recruitment phase of the Duisburg cohort study occurred from 2000 to 2002. Mental and motor development was assessed by means of the BSID at the ages of 12 and 24 mo. Prenatal PCB exposure of newborns from Duisburg cohort was about two- to threefold lower than the Dusseldorf cohort. Although in the Dusseldorf birth cohort mental and motor development at ages 18 and 30 mo were negatively associated with PCB exposure, there was no association observed in the Duisburg study. Evidence indicates that exposure to PCB at current exposure levels no longer apparently impair neurodevelopment of infants. [ABSTRACT FROM AUTHOR]
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- 2008
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16. Influence of industrial sources on children's health – Hot spot studies in North Rhine Westphalia, Germany
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Wilhelm, Michael, Eberwein, Georg, Hölzer, Jürgen, Gladtke, Dieter, Angerer, Jürgen, Marczynski, Boleslaw, Behrendt, Heidrun, Ring, Johannes, Sugiri, Dorothee, and Ranft, Ulrich
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CHILDREN'S health , *INDUSTRIAL hygiene , *BIOLOGICAL monitoring - Abstract
Abstract: The aim of this study was to evaluate exposure and health outcome of children living close to industrial sources. Exposure and health outcome was assessed in nearly 1000 children at school beginner age living in the vicinity of industrial sources of three different hot spots (Duisburg North, Duisburg South and Dortmund Hörde) and in a rural area of North Rhine Westphalia (NRW), Germany. The cross-sectional study was undertaken between March and May 2000. Exposure assessment comprised modelling of ambient air quality data and human biomonitoring (HBM). Depending on the site-specific contaminants, HBM included the measurement of PAH (polycyclic aromatic hydrocarbons) and benzene metabolites in urine as well as heavy metals in blood and urine. Markers of early effects were DNA strand breaks as measured by the comet assay in lymphocytes and excretion of α-1-microglobuline and N-acetyl-β-d-glucosamidase in urine. Health outcome was assessed by questionnaire, lung function test, dermatological examination as well as by RAST (radioallergosorbent test), patch tests and prick tests. The influence of exposure variables on biomarkers and health outcome was measured by means of multiple linear and logistic regression analysis. The most striking results were as follows. Children living close to a coke oven plant (Duisburg North) had increased levels of PAH metabolites in urine, and DNA exposure was increased. Children living at the Dortmund Hörde hot spot (increased chromium and nickel ambient air levels from a steel mill) revealed a high prevalence of allergic sensitizations. Sensitization, especially against nickel, was associated with the current internal nickel exposure, and nickel in ambient air was positively associated with the frequency of allergic symptoms. Children from the hot spot areas had increased specific airway resistance and total lung capacity as compared to those of the reference area. In Duisburg North particularly, specific airway resistance and total lung capacity significantly increased with increasing TSP (total suspended particulate). The only positive associations between external and internal exposure were found between benzo[a]pyrene in ambient air and 1-hydroxypyrene in urine, and between lead in ambient air and in the blood of the children. It is concluded that despite improvements of the general air quality during the last decades, living in the vicinity of industrial sources results to some extent in increased internal contaminant exposure and in effects on health outcome. Still ongoing studies are aimed to find out whether the increased PAH and DNA exposure of children from Duisburg North had decreased after the coke oven plant had been shut down in 2003, and if the striking results on the high prevalence of allergic sensitization can be confirmed by introducing an expanded cross-sectional study at four hot spots with increased chromium and nickel ambient air levels. [Copyright &y& Elsevier]
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- 2007
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17. CHILDREN'S HEALTH AND AIR POLLUTION AROUND INDUSTRIAL HOT SPOTS IN NORTH RHINE-WESTPHALIA, GERMANY.
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Eberwein, G., Wilheim, M., Hölzer, J., Gladtke, D., Angerer, J., Kraft, M., Marczynski, B., Behrendt, H., Ring, J., Sugiri, D., and Ranft, U.
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CHILDREN'S health , *AIR pollution , *EMISSION exposure , *AIR quality - Abstract
Objective: Evaluating exposure and health of children living in three highly industrialized districts ("hot-spots") in the Ruhr-Area and one rural community in North Rhine-Westphalia. Material and methods: Cross-sectional study comprising 968 preschool children was conducted in 2000. Exposure assessment based on ambient air quality data, small scale dispersion models and human biomonitoring, including measurement of PAH and heavy metals. Markers of early effects were DNA strand breaks measured by comet assay in lymphocytes. Health outcome were assessed by questionnaire, lung function and dermatological testing (RAST radioallergosorbent test, patch, prick). Influence of exposure on biomarkers and health outcome was measured by multiple linear and logistic regression analysis. Results: Children living close to a coke oven plant bad increased levels of PAH metabolites in urine and DNA exposure was increased. Children exposed to elevated Cr/Ni ambient air levels from a steel mill revealed high prevalence of allergic symptoms. Sensitization against Ni was associated with internal Ni exposure and Ni in ambient air was positively associated with the frequency of allergic symptoms. Children from the hot spot areas had increased respiratory tract problems. Positive associations between external and internal exposure were found between benzo[a]pyrene in ambient air and 1-hydroxypyrene in urine and between lead in ambient air and in children's blood. Conclusions: Despite improved air quality during the last decades, living in industrialized districts results to some extend in increased internal contaminant exposure and in effects on health outcome. Ongoing studies are aimed to find out if increased PAH and DNA exposure of children had decreased after the coke oven plant had been shut down and if the striking results on the high prevalence of allergic sensitization can he confirmed by an expanded cross sectional study at other districts with increased Cr/Ni ambient air levels. [ABSTRACT FROM AUTHOR]
- Published
- 2007
18. Pain in survivors of Ewing sarcoma: Prevalence, associated factors and prediction of recurrence.
- Author
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Heinemann M, Hoffmann C, Hardes J, Guder W, Streitbürger A, Götte M, Welz TL, Jürgens H, Ranft A, Vieth V, Weckesser M, Schäfers M, Stegger L, and Dirksen U
- Subjects
- Adolescent, Bone Neoplasms pathology, Cancer Pain chemically induced, Female, Follow-Up Studies, Germany epidemiology, Humans, Longitudinal Studies, Male, Neoplasm Recurrence, Local epidemiology, Prevalence, Prognosis, Retrospective Studies, Sarcoma, Ewing pathology, Antineoplastic Combined Chemotherapy Protocols adverse effects, Bone Neoplasms drug therapy, Cancer Pain pathology, Cancer Survivors statistics & numerical data, Neoplasm Recurrence, Local diagnosis, Sarcoma, Ewing drug therapy
- Abstract
Background: While the prognosis of patients with Ewing sarcoma (EwS) is improving, little is known about the frequency of pain and its risk factors in survivors of EwS. This study aims to analyse the prevalence and risk factors of pain and its predictive value for recurrence., Patients and Methods: In patients with remission after treatment of EwS, frequency and characteristics of pain within the first 5 years of follow up were assessed retrospectively., Results: Of 80 patients, 37 (46%) presented with at least one episode of pain. Chronic pain (>3 months) was observed in 10 patients (13%). Experience of at least one episode of pain was associated with prior combined local treatment (surgery and radiation compared to surgery alone; odds ratio [OR] 5.83, 95% confidence interval [CI] 1.43-34.9, P = .007). A total of 59 episodes of pain were observed, including 47 acute and 12 chronic episodes. Lower limb pain accounted for 46% (27/59) of all episodes of pain, and was associated with primary tumour of the pelvis or lower extremity (OR 4.29, 95% CI 1.18-18.21, P = .025), which represented 64% (51/80) of all EwS. The positive predictive value of pain for recurrence was only 12%., Conclusion: Pain is a common problem in survivors of EwS, which mostly affects the lower extremity, and should be regularly assessed. Interventions to reduce pain may be particularly important in patients with combined local treatment with surgery and radiation, who seem to be at considerably increased risk for pain. Patients presenting with pain should be examined for recurrence., (© 2020 Wiley Periodicals LLC.)
- Published
- 2021
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19. Age dependency of primary tumor sites and metastases in patients with Ewing sarcoma.
- Author
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Worch J, Ranft A, DuBois SG, Paulussen M, Juergens H, and Dirksen U
- Subjects
- Adolescent, Bone Neoplasms pathology, Bone Neoplasms secondary, Child, Child, Preschool, Databases, Factual, Female, Germany epidemiology, Humans, Infant, Lung Neoplasms epidemiology, Lung Neoplasms secondary, Male, Neoplasm Metastasis, Organ Specificity, Retrospective Studies, Sarcoma, Ewing pathology, Sarcoma, Ewing secondary, Treatment Outcome, Young Adult, Age Factors, Bone Neoplasms epidemiology, Sarcoma, Ewing epidemiology
- Abstract
Background: The median age of patients with Ewing sarcoma (EwS) at diagnosis is around 14-15 years. Older age is associated with a worse outcome. The correlation of age at diagnosis on sites of disease has not been fully described., Objective: The goal of this study was to evaluate the differences in sites of primary tumor and metastatic tumor involvement according to age groups., Design/method: EwS data from the Gesellschaft für Pädiatrische Onkologie und Hämatology (GPOH) database of the Cooperative Ewing Sarcoma Study (CESS) 81/86 and the European Intergroup Cooperative Ewing's Sarcoma Study EICESS 92 and the EUROpean Ewing tumor Working Initiative of National Groups-99-Protocol (EURO-E.W.I.N.G.-99) study were analyzed. Patient and tumor characteristics were evaluated statistically using chi square tests., Results: The study population included 2,635 patients with bone EwS. Sites of primary and metastatic tumors differed according to the age groups of young children (0-9 years), early adolescence (10-14 years), late adolescence (15-19 years), young adults (20-24 years), and adults (more than 24 years). Young children demonstrated the most striking differences in site of disease with a lower proportion of pelvic primary and axial tumors. They presented less often with metastatic disease at diagnosis., Conclusions: Site of primary and metastatic tumor involvement in EwS differs according to patient age. The biological and developmental etiology for these differences requires further investigations., (© 2018 Wiley Periodicals, Inc.)
- Published
- 2018
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20. Ewing sarcoma of the hand or foot.
- Author
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Froeb D, Ranft A, Boelling T, Paulussen M, Klco-Brosius S, Jürgens H, and Dirksen U
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- Adolescent, Adult, Antineoplastic Combined Chemotherapy Protocols therapeutic use, Bone Neoplasms diagnosis, Bone Neoplasms mortality, Bone Neoplasms pathology, Chemotherapy, Adjuvant, Child, Child, Preschool, Combined Modality Therapy, Consolidation Chemotherapy, Disease-Free Survival, Female, Germany, Guideline Adherence, Humans, Male, Middle Aged, Neoadjuvant Therapy, Neoplasm Staging, Retrospective Studies, Sarcoma, Ewing diagnosis, Sarcoma, Ewing mortality, Sarcoma, Ewing pathology, Young Adult, Bone Neoplasms therapy, Foot, Hand, Sarcoma, Ewing therapy
- Abstract
Purpose: Ewing Sarcoma (ES) of the hand or foot is a rare clinical condition. Due to the critical site, it is of major importance to choose an optimal procedure for local control in terms of outcome and function. Local therapeutic options for these patients range from: surgery (OP), surgery followed by radiotherapy (OP & RT), or radiotherapy (RT) alone., Patients and Methods: Data from 80 patients with ES of the hand or foot were analyzed. All patients received chemotherapy according to the protocols of the Cooperative Ewing Sarcoma Study Group (CESS) from 1991 to 2009 (EICESS-92 and EURO-E.W.I.N.G.99). Local therapy consisted of: OP in 39%, OP & RT in 44%, and RT in 12%. In 5% of the patients no local therapy (noL) was performed. Primary endpoint of our study was the event-free-survival (EFS)., Results: The 3-year overall EFS was 62% (95%CI 0.50-0.72). Patients with localized disease had a significantly better outcome with an EFS of 77% (95%CI 0.63-0.86), compared to patients with primary disseminated disease with an EFS of 30% (95%CI 0.14-0.49; p<0.001). In comparing local treatment modalities, no significant difference was observed. The 3-year EFS for OP was 61% (95% CI 0.40-0.76), for OP & RT 66% (95%CI 0.47-0.79) and for RT only 70% (95%CI 0.32-0.89) (p=0.253). Patients who did not receive local treatment had an unfavourable prognosis (3-year EFS=0.25; 95%CI 0.01-0.67; p=0.024). A multivariate analysis which included local treatment modality and known prognosticators, showed that primary dissemination was the only significant prognostic factor.Ewing sarcoma of the hand or foot is associated with a favourable outcome., Conclusion: Our data analysed a limited group of patients and thus did not provide a clear indication for a preferred local treatment modality., (© Georg Thieme Verlag KG Stuttgart · New York.)
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- 2012
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21. Radiation toxicity following busulfan/melphalan high-dose chemotherapy in the EURO-EWING-99-trial: review of GPOH data.
- Author
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Bölling T, Dirksen U, Ranft A, Ernst I, Jürgens H, and Willich N
- Subjects
- Adolescent, Antineoplastic Combined Chemotherapy Protocols therapeutic use, Bone Neoplasms surgery, Busulfan administration & dosage, Chemotherapy, Adjuvant, Child, Combined Modality Therapy, Cross-Sectional Studies, Dactinomycin administration & dosage, Dactinomycin toxicity, Dose-Response Relationship, Drug, Germany, Humans, Ifosfamide administration & dosage, Ifosfamide toxicity, Intestines radiation effects, Lung radiation effects, Melphalan administration & dosage, Multicenter Studies as Topic, Radiation Injuries etiology, Radiotherapy Dosage, Radiotherapy, Adjuvant, Randomized Controlled Trials as Topic, Registries, Retrospective Studies, Risk Factors, Sarcoma, Ewing surgery, Spinal Cord radiation effects, Vincristine administration & dosage, Vincristine toxicity, Antineoplastic Combined Chemotherapy Protocols toxicity, Bone Neoplasms drug therapy, Bone Neoplasms radiotherapy, Busulfan toxicity, Melphalan toxicity, Radiation Injuries epidemiology, Sarcoma, Ewing drug therapy, Sarcoma, Ewing radiotherapy, Survivors statistics & numerical data
- Published
- 2009
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22. Ewing's tumors over the age of 40: a retrospective analysis of 47 patients treated according to the International Clinical Trials EICESS 92 and EURO-E.W.I.N.G. 99.
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Pieper S, Ranft A, Braun-Munzinger G, Jurgens H, Paulussen M, and Dirksen U
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- Adult, Aged, Aged, 80 and over, Female, Germany epidemiology, Humans, Internationality, Male, Middle Aged, Prevalence, Risk Factors, Survival Analysis, Survival Rate, Switzerland epidemiology, Treatment Outcome, Bone Neoplasms mortality, Bone Neoplasms therapy, Risk Assessment methods, Sarcoma, Ewing mortality, Sarcoma, Ewing therapy
- Abstract
Background: Ewing's tumors (ET) are rare in patients over the age of 40 years. Published data on presentation, treatment, and clinical outcome are limited., Patients and Methods: We present a retrospective analysis of data from 47 patients in this age group diagnosed with ET and enrolled in the 2 consecutive trials, EICESS 92 and EURO-E.W.I.N.G. 99. The median age at diagnosis was 47.7 years (range, 40-68.6 years)., Results: The median follow-up was 2.23 years from diagnosis (range, 0.35-12.92 years). 72.3% of patients were found to have localized disease, and 27.7% had primary metastases. Good clinical response to induction therapy was observed in 55%, and 73% of patients showed good histological response. The event-free survival was 0.77 at 1 year and 0.50 at 3 years (n = 44)., Conclusion: ET are rare in patients over the age of 40 years. With adequate multimodal therapy, the results in terms of survival are comparable to those in adolescence. Specific age-adapted treatment regimens are not established. Patients should be enrolled in international trials, and if necessary treatment should be adjusted for lower tolerance and co-morbidity., (Copyright 2008 S. Karger AG, Basel.)
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- 2008
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23. [work motivation -- assessment instruments and their relevance for medical care].
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Fiedler RG, Ranft A, Greitemann B, and Heuft G
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- Germany, Humans, Rehabilitation, Vocational psychology, Delivery of Health Care, Motivation, Neuropsychological Tests, Work psychology
- Abstract
The relevance of work motivation for medical research and healthcare, in particular rehabilitation, is described. Four diagnostic instruments in the German language are introduced which can assess work motivation using a scale system: AVEM, JDS, LMI and FBTM. Their possible application and potential usage for the clinical area are discussed. Apart from the FBTM, none of these instruments can be directly used as a general instrument in a normal medical clinical setting. Finally, a current model for work motivation (compensatory model of work motivation and volition) is presented that contains basis concepts, which are judged as important for future research questions concerning the development of motivation diagnostic instruments.
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- 2005
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24. [Treatment of anaphylactic reactions: a review of guidelines and recommendations].
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Ranft A and Kochs EF
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- Anaphylaxis drug therapy, Bronchodilator Agents therapeutic use, Catecholamines therapeutic use, Epinephrine administration & dosage, Epinephrine therapeutic use, Evidence-Based Medicine, Germany, Glucocorticoids therapeutic use, Guidelines as Topic, Histamine Antagonists therapeutic use, Humans, Plasma Substitutes therapeutic use, Vasoconstrictor Agents administration & dosage, Vasoconstrictor Agents therapeutic use, Anaphylaxis therapy
- Abstract
In the present review, guidelines and recommendations for the treatment of anaphylactic reactions are presented and evaluated. Herefore, publications of German and non-German societies and expert groups have been selected and, in addition to that, we have chosen a number of articles that were cited frequently and, as far as we are concerned, have a relevant meaning for this theme. None of the traditionally applied remedies - epinephrine and intravascular volume, histamine receptor blockade, inhaled betamimetics and steroids - have been proven efficacious by means of evidence-based medicine. Due to the variability of the symptoms of anaphylaxis, it is widely accepted that such a clinical proof is unlikely to come. In contrast to this, there is lack of a consense as to substantial elements of the therapy, above all with regard to dosage and application mode for epinephrine and likewise concerning amount and kind of intravenous fluids. Hence, the physician in charge has to face the necessity either to follow the guidelines of his institution (if there are any) or to blend his own therapeutic regime according to his own convictions.
- Published
- 2004
- Full Text
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