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Sinclair SA, Krämer U. Generation of effective zinc-deficient agar-solidified media allows identification of root morphology changes in response to zinc limitation. Plant Signal Behav 2019; 15:1687175. [PMID: 31696764 PMCID: PMC7012054 DOI: 10.1080/15592324.2019.1687175] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2019] [Revised: 10/23/2019] [Accepted: 10/24/2019] [Indexed: 05/31/2023]
Abstract
Earlier, we demonstrated that transcript levels of METAL TOLERANCE PROTEIN2 (MTP2) and of HEAVY METAL ATPase2 (HMA2) increase strongly in roots of Arabidopsis upon prolonged zinc (Zn) deficiency and respond to shoot physiological Zn status, and not to the local Zn status in roots. This provided evidence for shoot-to-root communication in the acclimation of plants to Zn deficiency. Zn-deficient soils limit both the yield and quality of agricultural crops and can result in clinically relevant nutritional Zn deficiency in human populations. Implementing Zn deficiency during cultivation of the model plant Arabidopsis thaliana on agar-solidified media is difficult because trace element contaminations are present in almost all commercially available agars. Here, we demonstrate root morphological acclimations to Zn deficiency on agar-solidified medium following the effective removal of contaminants. These advancements allow reproducible phenotyping toward understanding fundamental plant responses to deficiencies of Zn and other essential trace elements.
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Affiliation(s)
- S. A. Sinclair
- Department of Molecular Genetics and Physiology of Plants, Ruhr University Bochum, Bochum, Germany
| | - U. Krämer
- Department of Molecular Genetics and Physiology of Plants, Ruhr University Bochum, Bochum, Germany
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Sinclair SA, Gille S, Pauly M, Krämer U. Regulation of acetylation of plant cell wall components is complex and responds to external stimuli. Plant Signal Behav 2019; 15:1687185. [PMID: 31696770 PMCID: PMC7012154 DOI: 10.1080/15592324.2019.1687185] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2019] [Revised: 10/24/2019] [Accepted: 10/25/2019] [Indexed: 06/10/2023]
Abstract
Previously, we reported that the allelic de-etiolated by zinc (dez) and trichome birefringence (tbr) mutants exhibit photomorphogenic development in the dark, which is enhanced by high Zn. TRICHOME BIREFRINGENCE-LIKE proteins had been implicated in transferring acetyl groups to various hemicelluloses. Pectin O-acetylation levels were lower in dark-grown dez seedlings than in the wild type. We observed Zn-enhanced photomorphogenesis in the dark also in the reduced wall acetylation 2 (rwa2-3) mutant, which exhibits lowered O-acetylation levels of cell wall macromolecules including pectins and xyloglucans, supporting a role for cell wall macromolecule O-acetylation in the photomorphogenic phenotypes of rwa2-3 and dez. Application of very short oligogalacturonides (vsOGs) restored skotomorphogenesis in dark-grown dez and rwa2-3. Here we demonstrate that in dez, O-acetylation of non-pectin cell wall components, notably of xyloglucan, is enhanced. Our results highlight the complexity of cell wall homeostasis and indicate against an influence of xyloglucan O-acetylation on light-dependent seedling development.
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Affiliation(s)
- S. A. Sinclair
- Molecular Genetics and Physiology of Plants, Ruhr-Universität Bochum, Bochum, Germany
| | - S. Gille
- Institute for Plant Cell Biology and Biotechnology, Heinrich-Heine University, Düsseldorf, Germany
| | - M. Pauly
- Institute for Plant Cell Biology and Biotechnology, Heinrich-Heine University, Düsseldorf, Germany
| | - U. Krämer
- Molecular Genetics and Physiology of Plants, Ruhr-Universität Bochum, Bochum, Germany
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Hüls A, Sugiri D, Fuks K, Krämer U, Krutmann J, Schikowski T. 231 Facial lentigines formation results from a complex interplay between solar ultraviolet radiation (sUVR) and ambient particulate matter (PM). J Invest Dermatol 2018. [DOI: 10.1016/j.jid.2018.03.237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Tzvi-Minker E, Bey R, Zimmermann C, Nitschke M, Münte T, Krämer U. PB 8 The effect of cerebellar degeneration and Parkinson’s disease on motor learning networks. Clin Neurophysiol 2017. [DOI: 10.1016/j.clinph.2017.06.064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Vierkötter A, Hüls A, Sugiri D, Krämer U, Seite S, Yang Y, Jin L, Wang S, Krutmann J, Schikowski T. 156 Air pollution and skin aging: Is there a mediator role for air pollution-induced lung inflammation? J Invest Dermatol 2017. [DOI: 10.1016/j.jid.2017.02.171] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Unfried K, Krämer U, Sydlik U, Autengruber A, Bilstein A, Stolz S, Marini A, Schikowski T, Keymel S, Krutmann J. Reduction of chronic lung inflammation by inhalation of the compatible solute ectoine: a population-based intervention study with elderly individuals. Pneumologie 2017. [DOI: 10.1055/s-0037-1598416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- K Unfried
- Iuf – Leibniz-Institut für Umweltmedizinische Forschung
| | - U Krämer
- Iuf – Leibniz-Institut für Umweltmedizinische Forschung
| | - U Sydlik
- Iuf – Leibniz-Institut für Umweltmedizinische Forschung
| | - A Autengruber
- Iuf – Leibniz-Institut für Umweltmedizinische Forschung
| | | | - S Stolz
- Iuf – Leibniz-Institut für Umweltmedizinische Forschung
| | - A Marini
- Iuf – Leibniz-Institut für Umweltmedizinische Forschung
| | - T Schikowski
- Iuf – Leibniz-Institut für Umweltmedizinische Forschung
| | - S Keymel
- Klinik für Kardiologie, Pneumologie und Angiologie der Heinrich-Heine-Universität
| | - J Krutmann
- Iuf – Leibniz-Institut für Umweltmedizinische Forschung
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Berg A, Filipiak‐Pittroff B, Schulz H, Hoffmann U, Link E, Sußmann M, Schnappinger M, Brüske I, Standl M, Krämer U, Hoffmann B, Heinrich J, Bauer C, Koletzko S, Berdel D, Thiering E, Tiesler C, Flexeder C, Zeller C, Werkstetter K, Klümper C, Sugiri D. Allergic manifestation 15 years after early intervention with hydrolyzed formulas--the GINI Study. Allergy 2016; 71:210-9. [PMID: 26465137 PMCID: PMC4738469 DOI: 10.1111/all.12790] [Citation(s) in RCA: 65] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/11/2015] [Indexed: 01/14/2023]
Abstract
Background Data on the long‐term impact of hydrolyzed formulas on allergies are scarce. Objective To assess the association between early intervention with hydrolyzed formulas in high‐risk children and allergic outcomes in adolescence. Methods GINI trial participants (n = 2252) received one of four formulas in the first four months of life as breastmilk substitute if necessary: partial or extensive whey hydrolyzate (pHF‐W, eHF‐W), extensive casein hydrolyzate (eHF‐C) or standard cow′s milk formula (CMF) as reference. Associations between these formulas and the cumulative incidence and prevalence of parent‐reported physician‐diagnosed asthma, allergic rhinitis (AR) and eczema, as well as spirometric indices and sensitization, were examined using generalized linear models. Results Between 11 and 15 years, the prevalence of asthma was reduced in the eHF‐C group compared to CMF (odds ratio (OR) 0.49, 95% confidence interval (CI) 0.26–0.89), which is consistent with the spirometric results. The cumulative incidence of AR was lower in eHF‐C (risk ratio (RR) 0.77, 95% CI 0.59–0.99]) and the AR prevalence in pHF‐W (OR 0.67, 95% CI 0.47–0.95) and eHF‐C (OR 0.59, 95% CI 0.41–0.84). The cumulative incidence of eczema was reduced in pHF‐W (RR 0.75, 95% CI 0.59–0.96) and eHF‐C (RR 0.60, 95% CI 0.46–0.77), as was the eczema prevalence between 11 and 15 years in eHF‐C (OR 0.42, 95% CI 0.23–0.79). No significant effects were found in the eHF‐W group on any manifestation,nor was there an effect on sensitization with any formula. Conclusion In high‐risk children, early intervention using different hydrolyzed formulas has variable preventative effects on asthma, allergic rhinitis and eczema up to adolescence.
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Affiliation(s)
- A. Berg
- Department of Pediatrics Marien‐Hospital Wesel, Research Institute Wesel Germany
| | - B. Filipiak‐Pittroff
- Department of Pediatrics Marien‐Hospital Wesel, Research Institute Wesel Germany
| | - H. Schulz
- Institute of Epidemiology I Helmholtz Zentrum Munich German Research Center for Environmental Health (GmbH) Neuherberg Germany
- Comprehensive Pneumology Center Munich (CPC‐M) Munich Germany
| | - U. Hoffmann
- Institute of Epidemiology I Helmholtz Zentrum Munich German Research Center for Environmental Health (GmbH) Neuherberg Germany
- Department of Pediatrics Technical University of Munich Munich Germany
| | - E. Link
- IUF – Leibniz Research Institute for Environmental Medicine at the Heinrich‐Heine‐University Düsseldorf Germany
| | - M. Sußmann
- Institute of Epidemiology I Helmholtz Zentrum Munich German Research Center for Environmental Health (GmbH) Neuherberg Germany
| | - M. Schnappinger
- Institute of Epidemiology I Helmholtz Zentrum Munich German Research Center for Environmental Health (GmbH) Neuherberg Germany
| | - I. Brüske
- Institute of Epidemiology I Helmholtz Zentrum Munich German Research Center for Environmental Health (GmbH) Neuherberg Germany
| | - M. Standl
- Institute of Epidemiology I Helmholtz Zentrum Munich German Research Center for Environmental Health (GmbH) Neuherberg Germany
| | - U. Krämer
- IUF – Leibniz Research Institute for Environmental Medicine at the Heinrich‐Heine‐University Düsseldorf Germany
| | - B. Hoffmann
- IUF – Leibniz Research Institute for Environmental Medicine at the Heinrich‐Heine‐University Düsseldorf Germany
- Medical Faculty Deanery of Medicine Heinrich‐Heine University Düsseldorf Germany
| | - J. Heinrich
- Institute of Epidemiology I Helmholtz Zentrum Munich German Research Center for Environmental Health (GmbH) Neuherberg Germany
- Comprehensive Pneumology Center Munich (CPC‐M) Munich Germany
| | - C.‐P. Bauer
- Department of Pediatrics Technical University of Munich Munich Germany
- LVA Oberbayern Munich Germany
| | - S. Koletzko
- Dr von Hauner Children's Hospital Ludwig‐Maximilians‐University University of Munich Medical Center Munich Germany
| | - D. Berdel
- Department of Pediatrics Marien‐Hospital Wesel, Research Institute Wesel Germany
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Krämer U, Buters J, Ring J, Behrendt H. Allergie und Umwelt. ALLERGOLOGIE 2016. [DOI: 10.1007/978-3-642-37203-2_40] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Krämer U, Schmitz R, Ring J, Behrendt H. What can reunification of East and West Germany tell us about the cause of the allergy epidemic? Clin Exp Allergy 2015; 45:94-107. [PMID: 25412814 DOI: 10.1111/cea.12458] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The increase of allergies in East Germany--reaching West German prevalence shortly after the reunification--is considered a model for the allergy epidemic in the western world. Whether such a pattern was observed in all comparison studies and for all allergic manifestations is not known because a complete overview is missing. Hints about possible causal factors for the allergy epidemic could be gained by identifying known risk factors, which explain the observed pattern of allergy development in Germany. Again, an overview about these efforts is missing. We identified 14 cross-sectional studies conducted after 1989 and calculated prevalence ratios (West/East) for asthma, hayfever, eczema and allergic sensitization. Additionally, a tabular overview about the explanatory power of risk factors hypothesized in the nineties and covering outdoor exposure, indoor factors, early childhood influences, nutrition as well as awareness is given. At the time of the German reunification, the prevalence ratio West/East was largest for hayfever and sensitization to birch pollen, less pronounced for the other phenotypes and even less than one for atopic eczema. Hayfever and sensitization to birch pollen also showed the steepest increase in East Germany afterwards. Single-room heating with fossil fuels and living as only child in a family were identified as explaining up to 23.5% of the excess trend in East compared to the trend in West. Hayfever as most typical atopic disease showed the difference in allergy pattern between East and West Germany clearest. Risk factors identified for these phenotypes are completely different (single child) or even act in the opposite direction (single-room heating) from classical risk factors for airway diseases. This might be the most important lesson from the West/East German experience. It already stimulated many other studies focussing on protective factors such as microbial stimulation.
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Affiliation(s)
- U Krämer
- IUF - Leibniz Research Institute for Environmental Medicine, Düsseldorf, Germany
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10
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Beyer F, Krämer U, Beckmann C. Neuronale Netzwerke aggressiver Interaktion und Furchtreaktivität: Anwendung von Unabhängigkeitsanalysen in den sozialen Neurowissenschaften. KLIN NEUROPHYSIOL 2015. [DOI: 10.1055/s-0035-1554652] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- F. Beyer
- Klinik für Neurologie, Universität zu Lübeck, Lübeck
| | - U. Krämer
- Klinik für Neurologie, Universität zu Lübeck, Lübeck
| | - C. Beckmann
- Donders Institute for Brain, Cognition and Behaviour, Radboud University Nijmegen, Niederlande
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Luckhaus C, Schikowski T, Vossoughi M, Vierkötter A, Krämer U, Herder C, Fehsel K. Gene-environment Interaction Between Estrogen Receptor (ER) SS, ApoE and Air Pollution On Cognitive Performance in an Elderly, Female Cohort. Eur Psychiatry 2015. [DOI: 10.1016/s0924-9338(15)30202-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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12
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Newson RB, Jones M, Forsberg B, Janson C, Bossios A, Dahlen SE, Toskala EM, Al-Kalemji A, Kowalski ML, Rymarczyk B, Salagean EM, van Drunen CM, Bachert C, Wehrend T, Krämer U, Mota-Pinto A, Burney P, Leynaert B, Jarvis D. The association of asthma, nasal allergies, and positive skin prick tests with obesity, leptin, and adiponectin. Clin Exp Allergy 2014; 44:250-60. [PMID: 24147569 DOI: 10.1111/cea.12221] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2013] [Revised: 08/07/2013] [Accepted: 08/14/2013] [Indexed: 11/25/2022]
Abstract
BACKGROUND Cross-sectional and longitudinal reports show that obese adults have more asthma than non-obese adults. A proposed mechanism is via effects of adipokines (leptin and adiponectin) on the immune system. OBJECTIVE We wished to measure the associations of asthma and other atopic diseases with serum adipokine levels and to find whether the associations with asthma were strong enough to rule out the possibility that they are secondary to the association of fatness measures with asthma. METHODS The Global Asthma and Allergy Network of Excellence (GA(2) LEN) clinical follow-up survey is a clinical survey, embedded in a larger multi-centre cross-sectional postal survey, involving, with a case/control design, enrichment of the sample with subjects with asthma and chronic rhinosinusitis (CRS). We recorded serum leptin or adiponectin in 845 men and 1110 women in 15 centres and also anthropometric measures of fatness including body mass index and waist/hip ratio, current asthma, and specific skin prick and IgE sensitisation. We used inverse sampling-probability-weighted rank and regression statistics to measure population associations of disease outcomes with adipokines in males and females, adjusting for confounders (area, age, smoking history, and number of elder siblings) and also mutually adjusting associations with adipokines and fatness measures. RESULTS One thousand nine hundred and fifty-five subjects aged 16-77 years had information on leptin or adiponectin levels. Leptin and leptin/adiponectin ratio were positively associated with the level of asthma, especially in females (Somers' D of leptin by asthma score, 0.20; 95% CI, 0.08-0.30; P = 0.00079). These associations were attenuated after adjusting for confounders and became non-significant after additionally adjusting for fatness measures and multiple comparisons. CONCLUSIONS AND CLINICAL RELEVANCE Asthma levels are positively associated with serum leptin. However, we cannot rule out the possibility that this association is secondary to associations of both with fatness measures.
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Affiliation(s)
- R B Newson
- Respiratory Epidemiology and Public Health Group, Imperial College London, National Heart and Lung Institute, London, UK
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Hüls A, Krämer U, Gappa M, Müller-Brandes C, Seitner-Sorge G, von Berg A, Schuster A, Beckmann C, Illi S, Wisbauer M, Berdel D. Neue spirometrische Referenzwerte für Kinder und Jugendliche in Deutschland unter Berücksichtigung der Größe und nichtlinearer Alterseffekte: Die LUNOKID-Studie. Pneumologie 2014; 68:393. [DOI: 10.1055/s-0034-1367575] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- A. Hüls
- Epidemiologie, IUF-Leibniz-Institut für umweltmedizinische Forschung, Düsseldorf
| | - U. Krämer
- Epidemiologie, IUF-Leibniz-Institut für umweltmedizinische Forschung, Düsseldorf
| | - M. Gappa
- Klinik für Kinder- und Jugendmedizin, Marienhospital, Wesel
| | - C. Müller-Brandes
- Abteilung für Anästhesiologie und Intensivmedizin, Medizinische Hochschule, Hannover
| | - G. Seitner-Sorge
- Epidemiologie, IUF-Leibniz-Institut für umweltmedizinische Forschung, Düsseldorf
| | - A. von Berg
- Klinik für Kinder- und Jugendmedizin, Marienhospital, Wesel
| | - A. Schuster
- Zentrum für Kinder- und Jugendmedizin, Heinrich-Heine Universität, Düsseldorf
| | - C. Beckmann
- Klinik für Kinder- und Jugendmedizin, Marienhospital, Wesel
| | - S. Illi
- Universitätskinderklinik, LMU, München
| | - M. Wisbauer
- Zentrum für Kinder- und Jugendmedizin, Heinrich-Heine Universität, Düsseldorf
| | - D. Berdel
- Klinik für Kinder- und Jugendmedizin, Marienhospital, Wesel
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Teichert T, Hellwig A, Peßler A, Hellwig M, Vossoughi M, Sugiri D, Vierkötter A, Schulte T, Roden M, Hoffmann B, Schikowski T, Luckhaus C, Krämer U, Henle T, Herder C. Advanced Glycation Endproducts im Plasma von Frauen ohne und mit gestörter Nüchternglukose: Ergebnisse aus der SALIA-Studie. DIABETOL STOFFWECHS 2014. [DOI: 10.1055/s-0034-1374942] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Newson RB, van Ree R, Forsberg B, Janson C, Lötvall J, Dahlén SE, Toskala EM, Baelum J, Brożek GM, Kasper L, Kowalski ML, Howarth PH, Fokkens WJ, Bachert C, Keil T, Krämer U, Bislimovska J, Gjomarkaj M, Loureiro C, Burney PGJ, Jarvis D. Geographical variation in the prevalence of sensitization to common aeroallergens in adults: the GA(2) LEN survey. Allergy 2014; 69:643-51. [PMID: 24654915 DOI: 10.1111/all.12397] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/14/2014] [Indexed: 11/28/2022]
Abstract
BACKGROUND Geographical variation in the prevalence of sensitization to aeroallergens may reflect differences in exposure to risk factors such as having older siblings, being raised on a farm or other unidentified exposures. OBJECTIVE We wanted to measure geographical variation in skin prick test positivity and assess whether it was explained by differences in family size and/or farm exposure. We also compared prevalence in younger and older subjects. METHODS Within the Global Allergy and Asthma European Network (GA(2) LEN) survey, we measured the prevalence of skin prick positivity to a panel of allergens, and geometric mean serum total immunoglobulin E (IgE), in 3451 participants aged 18-75 years in 13 areas of Europe. Estimated prevalence was standardized to account for study design. We compared prevalence estimates in younger and older subjects and further adjusted for age, gender, smoking history, farm exposure, number of older siblings and body mass index (BMI). RESULTS Skin prick test positivity to any one of the measured allergens varied within Europe from 31.4% to 52.9%. Prevalence of sensitization to single allergens also varied. Variation in serum total IgE was less marked. Younger participants had higher skin prick sensitivity prevalence, but not total IgE, than older participants. Geographical variation remained even after adjustment for confounders. CONCLUSION Geographical variation in the prevalence of skin prick test positivity in Europe is unlikely to be explained by geographical variation in gender, age, smoking history, farm exposure, family size and BMI. Higher prevalence in younger, compared to older, adults may reflect cohort-associated increases in sensitization or the influence of ageing on immune or tissue responses.
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Affiliation(s)
- R. B. Newson
- Respiratory Epidemiology and Public Health Group; National Heart and Lung Institute; Imperial College London; London UK
| | - R. van Ree
- Department of Experimental Immunology; Academic Medical Center; University of Amsterdam; Amsterdam the Netherlands
- Department of Otorhinolaryngology; Academic Medical Center; University of Amsterdam; Amsterdam the Netherlands
| | - B. Forsberg
- Occupational and Environmental Medicine; Umeå University; Umeå Sweden
| | - C. Janson
- Department of Medical Sciences: Respiratory Medicine and Allergology; University of Uppsala; Uppsala Sweden
| | - J. Lötvall
- Krefting Research Centre; Institute of Medicine; University of Gothenburg; Gothenburg Sweden
| | - S.-E. Dahlén
- CfA - The Centre for Allergy Research; Karolinska Institutet; Stockholm Sweden
| | - E. M. Toskala
- Skin and Allergy Hospital; Helsinki University; Helsinki Finland
- Department of ORL-HNS; Temple University; Philadelphia PA USA
| | - J. Baelum
- Department of Occupational and Environmental Medicine; Odense Patient Extended Network; Odense University Hospital; Odense University; Odense Denmark
| | - G. M. Brożek
- Department of Epidemiology; Medical University of Silesia in Katowice; Katowice Poland
| | - L. Kasper
- Department of Medicine; Jagiellonian University Medical College; Krakow Poland
| | - M. L. Kowalski
- Department of Immunology, Rheumatology and Allergy; Medical University of Lodz; Lodz Poland
| | - P. H. Howarth
- Clinical and Experimental Sciences; Faculty of Medicine; University of Southampton; Southampton UK
| | | | - C. Bachert
- Upper Airways Research Laboratory; University of Ghent; Ghent Belgium
- Division of Ear, Nose, and Throat Diseases, Clintec; Karolinska Institutet; Stockholm Sweden
| | - T. Keil
- Institute of Social Medicine, Epidemiology and Health Economics; Charité - Universitätsmedizin Berlin; Berlin Germany
- Institute of Clinical Epidemiology and Biometry; University of Würzburg; Würzburg Germany
| | - U. Krämer
- IUF - Leibniz Research Institute for Environmental Medicine; Düsseldorf Germany
- Department of Dermatology and Allergy am Biederstein; Technical University Munich; Munich Germany
| | - J. Bislimovska
- Institute for Occupational Health of Republic of Macedonia; Skopje Macedonia
| | - M. Gjomarkaj
- Institute of Biomedicine and Molecular Immunology; National Research Council; Palermo Italy
| | - C. Loureiro
- Faculty of Medicine; University of Coimbra; Coimbra Portugal
| | - P. G. J. Burney
- Respiratory Epidemiology and Public Health Group; National Heart and Lung Institute; Imperial College London; London UK
- MRC-PHE Centre for Environment and Health; Imperial College; London UK
| | - D. Jarvis
- Respiratory Epidemiology and Public Health Group; National Heart and Lung Institute; Imperial College London; London UK
- MRC-PHE Centre for Environment and Health; Imperial College; London UK
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Teichert T, Hellwig A, Peßler A, Hellwig M, Vossoughi M, Sugiri D, Vierkötter A, Schulte T, Roden M, Hoffmann B, Schikowski T, Luckhaus C, Krämer U, Henle T, Herder C. Advanced glycation endproducts in plasma of women without and with impaired glucose metabolism: Results from the SALIA-study. Exp Clin Endocrinol Diabetes 2014. [DOI: 10.1055/s-0034-1372178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Sydlik U, Krämer U, Kroker M, Paunel A, Keymel S, Heiss C, Bilstein A, Krutmann J, Unfried K. The interaction of carbon nanoparticles with neutrophilic granulocytes: a target for therapeutic approaches. Pneumologie 2013. [DOI: 10.1055/s-0033-1357057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Tomassen P, Jarvis D, Newson R, Van Ree R, Forsberg B, Howarth P, Janson C, Kowalski ML, Krämer U, Matricardi PM, Middelveld RJM, Todo-Bom A, Toskala E, Thilsing T, Brożek G, Van Drunen C, Burney P, Bachert C. Staphylococcus aureus enterotoxin-specific IgE is associated with asthma in the general population: a GA(2)LEN study. Allergy 2013; 68:1289-97. [PMID: 24117882 DOI: 10.1111/all.12230] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/30/2013] [Indexed: 11/30/2022]
Abstract
BACKGROUND Specific IgE to Staphylococcus aureus enterotoxins (SE-IgE) has been associated with asthma. In the general population, we aimed to determine the prevalence of and risk factors for serum SE-IgE and to examine the association with asthma. METHODS A postal questionnaire was sent to a random sample of adults in 19 centers across Europe. A random sample of respondents was invited for clinical examination upon which they answered a questionnaire, underwent skin prick tests (SPTs) for common aeroallergens, and provided blood for measurement of total IgE and SE-IgE. Risks were analyzed within centers using weighted logistic regression, and overall estimates calculated using fixed-effects meta-analysis. RESULTS 2908 subjects were included in this analysis. Prevalence of positive SE-IgE was 29.3%; no significant geographic variation was observed. In contrast to positive skin prick tests, SE-IgE was more common in smokers (<15 pack-year: OR 1.11, P = 0.079, ≥15 pack-year: OR 1.70, P < 0.001), and prevalence did not decrease in older age-groups or in those with many siblings. Total IgE concentrations were higher in those with positive SE-IgE than in those with positive SPT. SE-IgE was associated with asthma (OR 2.10, 95% confidence interval [1.60-2.76], P = 0.001) in a concentration-dependent manner. This effect was independent of SPT result and homogeneous across all centers. CONCLUSIONS We report for the first time that SE-IgE is common in the general population throughout Europe and that its risk factors differ from those of IgE against aeroallergens. This is the first study to show that SE-IgE is significantly and independently associated with asthma in the general population.
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Affiliation(s)
- P. Tomassen
- Upper Airways Research Laboratory; Department of Otorhinolaryngology and Head and Neck Surgery; Ghent University; Ghent; Belgium
| | - D. Jarvis
- Respiratory Epidemiology & Public Health; Imperial College London; London; UK
| | - R. Newson
- Respiratory Epidemiology & Public Health; Imperial College London; London; UK
| | - R. Van Ree
- Department of Experimental Immunology and Department of Otorhinolaryngology; Academic Medical Center; Amsterdam; the Netherlands
| | - B. Forsberg
- Department of Public Health and Clinical Medicine; Occupational and Environmental Medicine; Umeå University; Umeå; Sweden
| | | | - C. Janson
- Department of Medical Sciences: Respiratory Medicine and Allergology; Uppsala University; Uppsala; Sweden
| | - M. L. Kowalski
- Department of Immunology, Rheumatology and Allergy; Medical University of Lodz; Lodz; Poland
| | | | - P. M. Matricardi
- Department of Pediatric Pneumonology and Immunology; Charité University Medical Center; Berlin; Germany
| | - R. J. M. Middelveld
- Centre for Allergy Research and Institute of Environmental Medicine; Karolinska Institutet; Stockholm; Sweden
| | - A. Todo-Bom
- Immunoallergology Department; Coimbra University; Coimbra; Portugal
| | - E. Toskala
- Center for Applied Genomics; The Children's Hospital of Philadelphia; Philadelphia; PA; USA
| | - T. Thilsing
- Department of Occupational and Environmental Medicine; Odense University Hospital; Odense; Denmark
| | - G. Brożek
- Department of Epidemiology; College of Medicine Medical University of Silesia; Katowice; Poland
| | - C. Van Drunen
- Department of Otorhinolaryngology; Academic Medical Center; Amsterdam; the Netherlands
| | - P. Burney
- Respiratory Epidemiology & Public Health; Imperial College London; London; UK
| | - C. Bachert
- Upper Airways Research Laboratory; Department of Otorhinolaryngology and Head and Neck Surgery; Ghent University; Ghent; Belgium
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Teichert T, Vossoughi M, Vierkötter A, Sugiri D, Schulte T, Roden M, Luckhaus C, Herder C, Krämer U. Zusammenhang zwischen Luftverschmutzung, subklinischer Inflammation und gestörter Glukoseregulation - Ergebnisse aus der SALIA-Studie. DIABETOL STOFFWECHS 2013. [DOI: 10.1055/s-0033-1341870] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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20
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Teichert T, Vossoughi M, Vierkötter A, Sugiri D, Schulte T, Roden M, Luckhaus C, Herder C, Krämer U. Association between traffic-related air pollution, subclinical inflammation and impaired glucose metabolism: Results from the SALIA study. Exp Clin Endocrinol Diabetes 2013. [DOI: 10.1055/s-0033-1336775] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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21
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Hüls A, Krämer U, Gappa M, Müller-Brandes C, Seitner-Sorge G, von Berg A, Schuster A, Beckmann C, Illi S, Wisbauer M, Berdel D. Neue spirometrische Referenzwerte für Kinder und Jugendliche in Deutschland unter Berücksichtigung der Größe und nichtlinearer Alterseffekte: Die LUNOKID-Studie. Pneumologie 2013; 67:141-149. [DOI: 10.1055/s-0032-1326090] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- A. Hüls
- Epidemiologie, IUF-Leibniz-Institut für umweltmedizinische Forschung, Düsseldorf
| | - U. Krämer
- Epidemiologie, IUF-Leibniz-Institut für umweltmedizinische Forschung, Düsseldorf
| | - M. Gappa
- Klinik für Kinder- und Jugendmedizin, Marienhospital, Wesel
| | - C. Müller-Brandes
- Abteilung für Anästhesiologie und Intensivmedizin, Medizinische Hochschule, Hannover
| | - G. Seitner-Sorge
- Epidemiologie, IUF-Leibniz-Institut für umweltmedizinische Forschung, Düsseldorf
| | - A. von Berg
- Klinik für Kinder- und Jugendmedizin, Marienhospital, Wesel
| | - A. Schuster
- Zentrum für Kinder- und Jugendmedizin, Heinrich-Heine Universität, Düsseldorf
| | - C. Beckmann
- Klinik für Kinder- und Jugendmedizin, Marienhospital, Wesel
| | - S. Illi
- Universitätskinderklinik, LMU, München
| | - M. Wisbauer
- Zentrum für Kinder- und Jugendmedizin, Heinrich-Heine Universität, Düsseldorf
| | - D. Berdel
- Klinik für Kinder- und Jugendmedizin, Marienhospital, Wesel
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22
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Casas L, Tischer C, Tiesler C, Brüske I, Koletzko S, Bauer CP, Wichmann HE, von Berg A, Berdel D, Krämer U, Schaaf B, Lehmann I, Herbarth O, Heinrich J. Association of gas cooking with children's respiratory health: results from GINIplus and LISAplus birth cohort studies. Indoor Air 2012; 22:476-482. [PMID: 22512640 DOI: 10.1111/j.1600-0668.2012.00784.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
UNLABELLED Previous studies have found inconsistent results on the association between asthma in children and gas cooking emissions. We aimed to assess the effects of the long-term exposure to gas cooking on the onset of asthma and respiratory symptoms, focusing on wheezing, in children from two German birth cohorts: LISAplus and GINIplus. A total of 5078 children were followed until the age of 10 years. Asthma, wheezing, gas cooking, and exposure to other indoor factors were assessed through parental reported questionnaires administered periodically. Logistic and multinomial regressions adjusting for potential confounders were performed. The prevalence of asthma and persistent wheezing was higher among children exposed to gas cooking but the results were not statistically significant. Exposure to gas cooking was positively associated (P-value < 0.05) with exposure to other indoor factors (dampness, environmental tobacco smoke, and pets). Our results did not show a statistically significant association between the exposure to gas cooking and children's respiratory health. PRACTICAL IMPLICATIONS These analyses are consistent with the assumption of no effect of the exposure to low doses of nitrogen dioxide. The strong positive associations found between gas cooking and other indoor factors highlight the importance of considering other indoor factors when assessing health effects of gas cooking. Low-dose exposure to indoor nitrogen dioxide through gas cooking might not contribute to increase the risk of asthma and respiratory symptoms in children.
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Affiliation(s)
- L Casas
- Centre for Research in Environmental Epidemiology, Barcelona, Spain
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23
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Heinrich J, Brüske I, Schnappinger M, Standl M, Flexeder C, Thiering E, Tischer C, Tiesler C, Kohlböck G, Wenig C, Bauer C, Schaaf B, von Berg A, Berdel D, Krämer U, Cramer C, Lehmann I, Herbarth O, Behrendt H, Ring J, Kühnisch J, Koletzko S. Die zwei deutschen Geburtskohorten GINIplus und LISAplus. Bundesgesundheitsblatt Gesundheitsforschung Gesundheitsschutz 2012; 55:864-74. [DOI: 10.1007/s00103-012-1485-4] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Flexeder C, Thiering E, Brüske I, Koletzko S, Bauer CP, Wichmann HE, Mansmann U, von Berg A, Berdel D, Krämer U, Schaaf B, Lehmann I, Herbarth O, Heinrich J. Growth velocity during infancy and onset of asthma in school-aged children. Allergy 2012; 67:257-64. [PMID: 22092112 DOI: 10.1111/j.1398-9995.2011.02748.x] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
BACKGROUND Growth velocities during infancy might affect the risk of asthma in childhood. This study examines the association between peak height and weight velocities during the first 2 years of life and onset of asthma and wheeze up to 10 years of age. METHODS Data from 9086 children who participated in the GINIplus and LISAplus birth cohorts were analyzed. Information on asthma was requested annually from 1 to 10 years and information on wheeze at 1, 2, 4, 6, and 10 years. Peak height and weight velocities were calculated using height and weight measurements obtained between birth and 2 years of age. Cox proportional hazards models and generalized linear mixed models were calculated after adjustment for potential confounding factors including birth weight and body mass index at 10 years of age. RESULTS Per interquartile range increase in peak weight velocity (PWV), the risk of asthma increased significantly (adjHR: 1.22; CI: 1.02-1.47). The relationship between peak height velocity (PHV) and onset of asthma was nonsignificant (adjHR: 1.08; CI: 0.88-1.31). Wheeze was not significantly associated with PHV or with PWV (adjOR: 1.07; CI: 0.64-1.77 and adjOR: 1.11; CI: 0.68-1.79, respectively). CONCLUSIONS Weight gain during infancy is positively associated with physician-diagnosed asthma in school-aged children.
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Affiliation(s)
- C Flexeder
- Institute of Epidemiology I, Helmholtz Zentrum München, German Research Centre for Environmental Health, Neuherberg, Germany
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25
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Jarvis D, Newson R, Lotvall J, Hastan D, Tomassen P, Keil T, Gjomarkaj M, Forsberg B, Gunnbjornsdottir M, Minov J, Brozek G, Dahlen SE, Toskala E, Kowalski ML, Olze H, Howarth P, Krämer U, Baelum J, Loureiro C, Kasper L, Bousquet PJ, Bousquet J, Bachert C, Fokkens W, Burney P. Asthma in adults and its association with chronic rhinosinusitis: the GA2LEN survey in Europe. Allergy 2012; 67:91-8. [PMID: 22050239 DOI: 10.1111/j.1398-9995.2011.02709.x] [Citation(s) in RCA: 328] [Impact Index Per Article: 27.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
BACKGROUND The prevalence of asthma and its association with chronic rhinosinusitis (CRS) have not been widely studied in population-based epidemiological surveys. METHODS The Global Allergy and Asthma Network of Excellence (GA(2) LEN) conducted a postal questionnaire in representative samples of adults living in Europe to assess the presence of asthma and CRS defined by the European Position Paper on Rhinosinusitis and Nasal Polyps. The prevalence of self-reported current asthma by age group was determined. The association of asthma with CRS in each participating centre was assessed using logistic regression analyses, controlling for age, sex and smoking, and the effect estimates were combined using standard methods of meta-analysis. RESULTS Over 52,000 adults aged 18-75 years and living in 19 centres in 12 countries took part. In most centres, and overall, the reported prevalence of asthma was lower in older adults (adjusted OR for 65-74 years compared with 15-24 years: 0.72; 95% CI: 0.63-0.81). In all centres, there was a strong association of asthma with CRS (adjusted OR: 3.47; 95% CI: 3.20-3.76) at all ages. The association with asthma was stronger in those reporting both CRS and allergic rhinitis (adjusted OR: 11.85; 95% CI: 10.57-13.17). CRS in the absence of nasal allergies was positively associated with late-onset asthma. CONCLUSION Geographical variation in the prevalence of self-reported asthma was observed across Europe, but overall, self-reported asthma was more common in young adults, women and smokers. In all age groups, men and women, and irrespective of smoking behaviour, asthma was also associated with CRS.
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Affiliation(s)
- D Jarvis
- Imperial College, Respiratory Epidemiology and Public Health Group and MRC-HPA Centre for Environment and Health, London, UK.
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26
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Standl M, Sausenthaler S, Lattka E, Koletzko S, Bauer CP, Wichmann HE, von Berg A, Berdel D, Krämer U, Schaaf B, Lehmann I, Herbarth O, Klopp N, Koletzko B, Heinrich J. FADS gene cluster modulates the effect of breastfeeding on asthma. Results from the GINIplus and LISAplus studies. Allergy 2012; 67:83-90. [PMID: 21933193 DOI: 10.1111/j.1398-9995.2011.02708.x] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
BACKGROUND The protective effect of breastfeeding (BF) on the development of asthma has been widely recognized, even if not all results have been consistent. Gene variants of the FADS gene cluster have a major impact on fatty acid composition in blood and in breast milk. Therefore, we evaluated the influence of the FADS1 FADS2 gene cluster polymorphisms on the association between BF and asthma. METHODS The analysis was based on data (N=2245) from two German prospective birth cohort studies. Information on asthma and BF during the first 6 months was collected using questionnaires completed by the parents. Logistic regression modelling was used to analyse the association between exclusive BF and ever having asthma stratified by genotype. RESULTS In the stratified analyses, BF for 3 or 4 months after birth had a protective effect for heterozygous and homozygous carriers of the minor allele (adjusted odds ratio between 0.37 (95% CI: 0.18-0.80) and 0.42 (95% CI: 0.20-0.88). Interaction terms of BF with genotype were significant and ranged from -1.17 (P-value: 0.015) to -1.33 (0.0066). Moreover, heterozygous and homozygous carriers of the minor allele who were exclusively breastfed for 5 or 6 months after birth had a reduced risk of asthma [0.32 (0.18-0.57) to 0.47 (0.27-0.81)] in the stratified analyses. For individuals carrying the homozygous major allele, BF showed no significant effect on the development of asthma. CONCLUSIONS The association between exclusive BF and asthma is modified by the genetic variants of FADS genotypes in children.
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Affiliation(s)
- M Standl
- Helmholtz Zentrum München, German Research Centre for Environmental Health, Institute of Epidemiology I, Ingolstädter Landstrasse 1, Neuherberg, Germany
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27
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Hastan D, Fokkens WJ, Bachert C, Newson RB, Bislimovska J, Bockelbrink A, Bousquet PJ, Brozek G, Bruno A, Dahlén SE, Forsberg B, Gunnbjörnsdóttir M, Kasper L, Krämer U, Kowalski ML, Lange B, Lundbäck B, Salagean E, Todo-Bom A, Tomassen P, Toskala E, van Drunen CM, Bousquet J, Zuberbier T, Jarvis D, Burney P. Chronic rhinosinusitis in Europe--an underestimated disease. A GA²LEN study. Allergy 2011; 66:1216-23. [PMID: 21605125 DOI: 10.1111/j.1398-9995.2011.02646.x] [Citation(s) in RCA: 648] [Impact Index Per Article: 49.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Chronic rhinosinusitis (CRS) is a common health problem, with significant medical costs and impact on general health. Even so, prevalence figures for Europe are unavailable. In this study, conducted by the GA²LEN network of excellence, the European Position Paper on Rhinosinusitis and nasal Polyps (EP³OS) diagnostic criteria are applied to estimate variation in the prevalence of Chronic rhinosinusitis (CRS) for Europe. METHOD A postal questionnaire was sent to a random sample of adults aged 15-75 years in 19 centres in Europe. Participants reported symptoms of CRS, and doctor diagnosed CRS, allergic rhinitis, age, gender and smoking history. Definition of CRS was based on the EP³OS diagnostic criteria: the presence of more than two of the symptoms: (i) nasal blockage, (ii) nasal discharge, (iii) facial pain/pressure or (iv) reduction in sense of smell, for >12 weeks in the past year--with at least one symptom being nasal blockage or discharge. RESULTS Information was obtained from 57,128 responders living in 19 centres in 12 countries. The overall prevalence of CRS by EP³OS criteria was 10.9% (range 6.9-27.1). CRS was more common in smokers than in nonsmokers (OR 1.7: 95% CI 1.6-1.9). The prevalence of self-reported physician-diagnosed CRS within centres was highly correlated with the prevalence of EP³OS-diagnosed CRS. CONCLUSION This is the first European international multicentre prevalence study of CRS. In this multicentre survey of adults in Europe, about one in ten participants had CRS with marked geographical variation. Smoking was associated with having CRS in all parts of Europe.
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Affiliation(s)
- D Hastan
- Department of Otorhinolaryngology, Academic Medical Centre, University of Amsterdam, Amsterdam, the Netherlands
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28
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Standl M, Sausenthaler S, Lattka E, Koletzko S, Bauer CP, Wichmann HE, von Berg A, Berdel D, Krämer U, Schaaf B, Röder S, Herbarth O, Klopp N, Koletzko B, Heinrich J. FADS gene variants modulate the effect of dietary fatty acid intake on allergic diseases in children. Clin Exp Allergy 2011; 41:1757-66. [PMID: 21793953 DOI: 10.1111/j.1365-2222.2011.03833.x] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
BACKGROUND The association between dietary fatty acid intake and the development of atopic diseases has been inconsistent. This could be due to inter-individual genetic differences in fatty acid metabolism. OBJECTIVE The aim of the current study was to assess the influence of FADS1 FADS2 gene cluster polymorphisms on the association between dietary fatty acid intake and atopic diseases and allergic sensitization in 10-year-old children. METHODS The analysis was based on data from two German prospective birth cohort studies. Data on margarine and fatty acid intake were collected using a food frequency questionnaire. Information on atopic diseases was collected using a questionnaire completed by the parents. Specific IgE against common food and inhalant allergens were measured. Six variants of the FADS1 FADS2 gene cluster (rs174545, rs174546, rs174556, rs174561, rs174575 and rs3834458) were tested. Logistic regression modelling, adjusted for gender, age, maternal education level and study centre, was used to analyse the association between fatty acid intake and atopic diseases stratified by genotype. RESULTS No significant association was found between the six FADS single nucleotide polymorphisms (SNPs) and allergic diseases or atopic sensitization. The total n-3/total n-6 ratio was positive associated with an increased risk of hayfever in homozygous major allele carriers ranging from an adjusted odds ratios of 1.25 (95%-CI: 1.00-1.57) to 1.31 (95%-CI: 1.01-1.69) across the six tested SNPs although this association was not significant anymore after correcting for multiple testing. Daily margarine intake was significantly associated with asthma [1.17 (1.03-1.34) to 1.22 (1.06-1.40)] in individuals carrying the homozygous major allele. This association was also significant after correcting for multiple testing. CONCLUSIONS & CLINICAL RELEVANCE The association between dietary intake of fatty acids and allergic diseases might be modulated by FADS gene variants in children.
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Affiliation(s)
- M Standl
- Institute of Epidemiology I, Helmholtz Zentrum München, German Research Center for Environmental Health, Munich, Germany
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29
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Tomassen P, Newson RB, Hoffmans R, Lötvall J, Cardell LO, Gunnbjörnsdóttir M, Thilsing T, Matricardi P, Krämer U, Makowska JS, Brozek G, Gjomarkaj M, Howarth P, Loureiro C, Toskala E, Fokkens W, Bachert C, Burney P, Jarvis D. Reliability of EP3OS symptom criteria and nasal endoscopy in the assessment of chronic rhinosinusitis--a GA² LEN study. Allergy 2011; 66:556-61. [PMID: 21083566 DOI: 10.1111/j.1398-9995.2010.02503.x] [Citation(s) in RCA: 75] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
BACKGROUND The European Position Paper on Rhinosinusitis and Nasal Polyps (EP3OS) incorporates symptomatic, endoscopic, and radiologic criteria in the clinical diagnosis of chronic rhinosinusitis (CRS), while in epidemiological studies, the definition is based on symptoms only. We aimed to assess the reliability and validity of a symptom-based definition of CRS using data from the GA(2) LEN European survey. METHODS On two separate occasions, 1700 subjects from 11 centers provided information on symptoms of CRS, allergic rhinitis, and asthma. CRS was defined by the epidemiological EP3OS symptom criteria. The difference in prevalence of CRS between two study points, the standardized absolute repeatability, and the chance-corrected repeatability (kappa) were determined. In two centers, 342 participants underwent nasal endoscopy. The association of symptom-based CRS with endoscopy and self-reported doctor-diagnosed CRS was assessed. RESULTS There was a decrease in prevalence of CRS between the two study phases, and this was consistent across all centers (-3.0%, 95% CI: -5.0 to -1.0%, I(2) = 0). There was fair to moderate agreement between the two occasions (kappa = 39.6). Symptom-based CRS was significantly associated with positive endoscopy in nonallergic subjects, and with self-reported doctor-diagnosed CRS in all subjects, irrespective of the presence of allergic rhinitis. CONCLUSION Our findings suggest that a symptom-based definition of CRS, according to the epidemiological part of the EP3OS criteria, has a moderate reliability over time, is stable between study centers, is not influenced by the presence of allergic rhinitis, and is suitable for the assessment of geographic variation in prevalence of CRS.
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Affiliation(s)
- P Tomassen
- Upper Airways Research Laboratory, Department of Otorhinolaryngology and Logopaedic-Audiologic Science, Ghent University, Gent, Belgium.
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30
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Cramer C, Link E, Bauer CP, Hoffmann U, von Berg A, Lehmann I, Herbarth O, Borte M, Schaaf B, Sausenthaler S, Wichmann HE, Heinrich J, Krämer U. Association between attendance of day care centres and increased prevalence of eczema in the German birth cohort study LISAplus. Allergy 2011; 66:68-75. [PMID: 20716321 DOI: 10.1111/j.1398-9995.2010.02446.x] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
BACKGROUND Day care centre attendance is much more common in East than in West Germany. Although there is evidence that early day care might be protective against atopic diseases, several studies have shown a higher prevalence of childhood eczema in East Germany compared to West Germany. OBJECTIVES To compare prevalence and cumulative incidence of eczema in a birth cohort study in East and West Germany and to identify risk factors that are associated with eczema, which might explain regional differences. METHODS We used data from the ongoing population-based birth cohort study Influence of Life-style factors on the development of the Immune System and Allergies in East and West Germany Plus the influence of traffic emissions and genetics. In 1997, 3097 children from study areas in East and West Germany were recruited. Cumulative incidence and 1-year prevalences of eczema up to the age of 6 years were determined from yearly questionnaires. Cox regression and generalized estimating equations/logistic regression were used to quantify regional differences and to identify risk factors that might explain them. RESULTS Prevalence and incidence of eczema were higher in children living in East Germany than those living in West Germany. We identified 11 risk factors that showed significant regional differences. From these factors, only 'day care attendance during the first 2 years of life' was significantly associated with eczema (odds ratio 1.56, 95% confidence interval CI 1.31-1.86). The regional differences in eczema could be explained by differences in early day care utilization. CONCLUSION Day care centre attendance is associated with an increased prevalence and incidence of eczema. Regional differences in eczema prevalence could be explained by regional differences in utilization of early day care.
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Affiliation(s)
- C Cramer
- IUF-Institut für Umweltmedizinische Forschung, Düsseldorf, Germany.
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Tischer C, Gehring U, Chen CM, Kerkhof M, Koppelman G, Sausenthaler S, Herbarth O, Schaaf B, Lehmann I, Krämer U, Berdel D, von Berg A, Bauer CP, Koletzko S, Wichmann HE, Brunekreef B, Heinrich J. Respiratory health in children, and indoor exposure to (1,3)-β-D-glucan, EPS mould components and endotoxin. Eur Respir J 2010; 37:1050-9. [PMID: 20817706 DOI: 10.1183/09031936.00091210] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
For a long time, exposure to mould and dampness-derived microbial components was considered a risk factor for the development of respiratory diseases and symptoms. Some recent studies suggested that early childhood exposure to mould components, such as (1,3)-β-D-glucan and extracellular polysaccharides (EPSs), may protect children from developing allergy. We investigated the association of exposure to (1,3)-β-D-glucan, EPS and endotoxin with asthma and allergies in 6-yr-old children. This investigation was the follow-up to a nested case-control study among three European birth cohorts. Children from two ongoing birth cohort studies performed in Germany (n = 358) and one in the Netherlands (n = 338) were selected. Levels of (1,3)-β-D-glucan, EPS and endotoxin were measured in settled house dust sampled from children's mattresses and living-room floors when the children were, on average, 5 yrs of age. At the age of 6 yrs, health outcome information was available for 678 children. In the two German subsets, domestic EPS and endotoxin exposure from children's mattresses were significantly negatively associated with physician-diagnosed asthma (OR per interquartile range increase 0.60 (95% CI 0.39-0.92) and 0.55 (95% CI 0.31-0.97), respectively). In addition, EPS exposure was inversely related to physician-diagnosed allergic rhinitis (OR 0.50, 95% CI 0.31-0.81). For the Dutch population, no associations were observed between exposure to microbial agents and respiratory health outcomes. We found inverse associations between domestic exposure to EPS and endotoxin from children's mattresses, and doctor-diagnosed asthma and rhinitis in German, but not in Dutch, school children. The reasons for the differences between countries are not clear.
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Affiliation(s)
- C Tischer
- Institute of EpidemiologyHelmholtz Zentrum München, German Research Centre for Environmental Health, Neuherberg, Germany.
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Rzehak P, Scherag A, Grallert H, Sausenthaler S, Koletzko S, Bauer C, Schaaf B, Berg AV, Berdel D, Borte M, Herbarth O, Krämer U, Illig T, Wichmann H, Hebebrand J. Assoziationen zwischen BMI-Entwicklung und FTO-Gen sind altersabhängig. Ergebnisse der GINI und LISA Geburtskohortenstudien bis zum Alter von 6 Jahren. Gesundheitswesen 2010. [DOI: 10.1055/s-0030-1266729] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Standl M, Sausenthaler S, Buyken A, Rzehak P, Koletzko S, Bauer C, Schaaf B, Berg AV, Berdel D, Borte M, Herbarth O, Lehmann I, Krämer U, Wichmann H, Heinrich J. Regional and socioeconomic differences in food, nutrient and supplement intake in school-age children in Germany. Results from the GINIplus and the LISAplus Study. Gesundheitswesen 2010. [DOI: 10.1055/s-0030-1266671] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Cramer C, Koletzko S, Bauer C, Berdel D, Berg AV, Lehmann I, Herbarth O, Borte M, Schaaf B, Heinrich J, Krämer U. Gene-environment interactions in childhood eczema: Elder siblings enhance the effect of filaggrin mutations – Results from the LISAplus and GINIplus study. Gesundheitswesen 2010. [DOI: 10.1055/s-0030-1266249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Krämer U, Oppermann H, Ranft U, Schäfer T, Ring J, Behrendt H. Differences in allergy trends between East and West Germany and possible explanations. Clin Exp Allergy 2010; 40:289-98. [PMID: 20210807 DOI: 10.1111/j.1365-2222.2009.03435.x] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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.
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Affiliation(s)
- U Krämer
- Institut für Umweltmedizinische Forschung (IUF), Heinrich-Heine-University Düsseldorf, Düsseldorf, Germany.
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Chen CM, Sausenthaler S, Bischof W, Herbarth O, Borte M, Behrendt H, Krämer U, Williams HC, Wichmann HE, Heinrich J. Perinatal exposure to endotoxin and the development of eczema during the first 6 years of life. Clin Exp Dermatol 2010; 35:238-44. [DOI: 10.1111/j.1365-2230.2009.03460.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Schnabel E, Sausenthaler S, Schaaf B, Schäfer T, Lehmann I, Behrendt H, Herbarth O, Borte M, Krämer U, von Berg A, Wichmann HE, Heinrich J. Prospective association between food sensitization and food allergy: results of the LISA birth cohort study. Clin Exp Allergy 2010; 40:450-7. [DOI: 10.1111/j.1365-2222.2009.03400.x] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Berg AV, Krämer U, Link E, Bollrath C, Heinrich J, Brockow I, Koletzko S, Grübl A, Filipiak-Pittroff B, Wichmann HE, Bauer CP, Reinhardt D, Berdel D. Impact of early feeding on childhood eczema: development after nutritional intervention compared with the natural course - the GINIplus study up to the age of 6 years. Clin Exp Allergy 2010; 40:627-36. [DOI: 10.1111/j.1365-2222.2009.03444.x] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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40
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Chen CM, Weidinger S, Klopp N, Sausenthaler S, Bischof W, Herbarth O, Bauer M, Borte M, Schaaf B, Lehmann I, Behrendt H, Krämer U, Berdel D, von Berg A, Bauer CP, Koletzko S, Illig T, Wichmann HE, Heinrich J. Common variants in FCER1A influence total serum IgE levels from cord blood up to six years of life. Allergy 2009; 64:1327-32. [PMID: 19245427 DOI: 10.1111/j.1398-9995.2009.02005.x] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND In a recent genome wide scan, a functional promoter variant (rs2251746) in the gene encoding the alpha chain of the high affinity receptor for immunoglobulin E (IgE) (FCER1A) was identified as major determinant of serum IgE levels. OBJECTIVE The aim of this study was to investigate the role of rs2251746 on total IgE levels measured at different stages of life from birth (cord blood) up to the age of 6 and to evaluate its interaction with the environmental influences in two German birth cohorts. METHOD Data from two German birth cohorts were analysed (n = 1043 for the LISA cohort and n = 1842 for the GINI cohort). In the studies, total serum IgE was measured from cord blood, and blood samples taken at the age of 2/3 and 6 years. In a subgroup of the LISA study, house dust samples were collected at age of 3 months and the amount of endotoxin was determined. Random effect models were used to analyse the longitudinal health outcomes. RESULTS In the two cohorts, the heterozygote and the rare homozygote of rs2251746 was consistently associated with lower total IgE levels from birth up to the age of 6 years with an allele-dose effect (P < 0.02 for blood samples taken at each time point in both cohorts). No interaction between the two FCER1A encoding gene and environmental exposures including endotoxin, worm infestation and day care centre attendance during early childhood were observed. CONCLUSION Common variants in FCER1A strongly influence basal IgE production independently from environmental stimuli. These effects can be observed already in cord blood pointing to altered gene expression in foetus.
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Affiliation(s)
- C-M Chen
- Helmholtz Zentrum München, German Research Centre for Environmental Health, Institute of Epidemiology, Neuherberg, Germany
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Sausenthaler S, Rzehak P, Chen CM, Arck P, Bockelbrink A, Schäfer T, Schaaf B, Borte M, Herbarth O, Krämer U, von Berg A, Wichmann HE, Heinrich J. Stress-related maternal factors during pregnancy in relation to childhood eczema: results from the LISA Study. J Investig Allergol Clin Immunol 2009; 19:481-487. [PMID: 20128423] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/28/2023] Open
Abstract
BACKGROUND Stress has been suggested to impact the onset and exacerbation of eczema and other atopic disorders. Whether early exposure to stress-related factors might exert long-term effects remains to be clarified. OBJECTIVE The objective of this study was to investigate whether stress-related maternal factors during pregnancy are associated with childhood eczema during the first 6 years of life. METHODS Data from 3004 children from a prospective German birth cohort study (LISA) were analyzed. Information from maternity certificates and questionnaire information on unwanted pregnancy were used to evaluate stress-related maternal factors during pregnancy. Prevalence data for physician-diagnosed eczema were available up to the age of 6 years. RESULTS Maternal factors during pregnancy were positively associated with childhood eczema in terms of cumulative prevalence up to the age of 2 years (adjusted odds ratio, 1.48; 95% confidence interval, 0.95-2.30) after adjusting for potential confounders. Beyond the second year no increased risk was observed. CONCLUSIONS The results of this study suggest that stress-related maternal factors during pregnancy are associated with an increased risk of childhood eczema during the first 2 years of life. The impact of postnatal stress such as parental divorce or separation on this association could not be clarified. Future studies should therefore further elucidate how prenatal and postnatal stress interact and whether prenatal stress might have a programming effect. If future studies confirm the findings of this study, reducing maternal stress during pregnancy might be a possible target in the primary prevention of eczema during childhood.
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Affiliation(s)
- S Sausenthaler
- Helmholtz Zentrum München, German Research Center for Environmental Health, Institute of Epidemiology, Neuherberg, Germany.
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Brockow I, Zutavern A, Hoffmann U, Grübl A, von Berg A, Koletzko S, Filipiak B, Bauer CP, Wichmann HE, Reinhardt D, Berdel D, Krämer U, Heinrich J. Early allergic sensitizations and their relevance to atopic diseases in children aged 6 years: results of the GINI study. J Investig Allergol Clin Immunol 2009; 19:180-187. [PMID: 19610260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/28/2023] Open
Abstract
BACKGROUND Only a few studies have analyzed the value of early sensitization in predicting the development of atopic disease. The relevance of low immunoglobulin (Ig) E antibody levels in this respect also remains unclear. OBJECTIVE To investigate the relevance of sensitization in 12-month-old children in the development of atopic disease by the age of 6 years. METHODS We analyzed data for 1290 children with a positive family history of atopy from the prospective, multicenter German Infant Nutritional Intervention (GINIplus) study and investigated the relationship between the presence of detectable specific IgE antibodies at the age of 12 months and the development of atopic disease by the age of 6 years. RESULTS In all, 10.9% of children analyzed developed sensitization. At the age of 6 years, 20.6% of children with early sensitization had eczema compared to 9.4% of those without (odds ratio [OR], 2.31; 95% confidence interval [CI], 1.42-3.74). The corresponding figures were 15.4% vs 7.3% for allergic rhinitis (OR, 2.22; CI, 1.31-3.78) and 10.2% vs 2.6% (OR, 3.93; 95% CI, 1.98-7.76) for asthma. Children with early sensitization to aeroallergens had the greatest risk of subsequent atopic disease. Early sensitization did not increase risk in children without eczema within the first year of life. Very low specific IgE levels (0.18-0.34 kU/L) were not significantly associated with any of the outcomes analyzed. CONCLUSION Sensitization to common food allergens and to aeroallergens in particular during the first year of life was found to be a strong predictor for the development of atopic disease by the age of 6 years in children with a positive family history of atopy.
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Affiliation(s)
- I Brockow
- Department of Pediatrics, Technical University of Munich, Munich, Germany
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Eller E, Roll S, Chen CM, Herbarth O, Wichmann HE, von Berg A, Krämer U, Mommers M, Thijs C, Wijga A, Brunekreef B, Fantini MP, Bravi F, Forastiere F, Porta D, Sunyer J, Torrent M, Høst A, Halken S, Lødrup Carlsen KC, Carlsen KH, Wickman M, Kull I, Wahn U, Willich SN, Lau S, Keil T, Heinrich J. Meta-analysis of determinants for pet ownership in 12 European birth cohorts on asthma and allergies: a GA2LEN initiative. Allergy 2008; 63:1491-8. [PMID: 18721248 DOI: 10.1111/j.1398-9995.2008.01790.x] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
BACKGROUND Studies on pet ownership as a risk or protective factor for asthma and allergy show inconsistent results. This may be on account of insufficient adjustment of confounding factors. AIM The objective of this study was to describe determinants of cat and dog ownership in European families with and without allergies. METHODS Within the EU-funded network of excellence GA(2)LEN, we performed meta-analyses with data from 12 ongoing European birth cohort studies on asthma and allergy. Each of the birth cohort studies enrolled between 485 and 4089 children. Pet ownership, allergic status (asthma, allergic rhinitis, eczema) of parents and siblings, parental education, access to ground floor, and number of people living at home were assessed by questionnaires. RESULTS Among the 25 056 families from seven European countries cats (14.9%) were more common than dogs (12.0%). Allergic family history significantly reduced the odds to own a cat (adjusted combined random-effect OR 0.91; 95% CI 0.85-0.99), or dog (0.90; 0.86-0.94). A higher parental educational level had even more pronounced effects on cat (0.84; 0.71-0.98), and dog ownership (0.61; 0.54-0.70). Elder siblings reduced the odds to own cats, but not dogs. Convenient ground access significantly increased the odds, whereas crowding at home was not associated with cat or dog ownership. CONCLUSIONS The chances to own a cat or dog were significantly reduced in allergic families, in parents with a higher educational level, and in homes without convenient ground access. In addition to parental allergies, social and housing factors should be considered as potential confounders in studies on pet exposure and allergic diseases.
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Affiliation(s)
- E Eller
- Department of Dermatology, Allergy Center, Odense University Hospital, Odense, Denmark
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Heldmann M, Münte T, Krämer U, Marco-Pallares J, Klosterkötter J, Lenartz D, Sturm V, Heinze H, Hinrichs H. Ereignis-korrelierte lokale Feldpotenziale und Wavelet-Frequenzspektren zur Identifizierung von Handlungskontrollprozessen im Nucleus Accumbens. KLIN NEUROPHYSIOL 2008. [DOI: 10.1055/s-0028-1083826] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Krämer U, Schadel A. [Development of a nasal spray applicator]. Laryngorhinootologie 2008; 87:234-5. [PMID: 18382962 DOI: 10.1055/s-2008-1074813] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- U Krämer
- Facharzt für Hals-, Nasen-, Ohrenheilkunde, Oldenburg.
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Mönch K, Eichler T, Krämer U, Schneider H, Paul T. Ein Hämangiom als seltene Ursache eines neonatalen intrakardialen Tumors mit Obstruktion des Einstroms über die Trikuspidalklappe. Ein Fallbericht. Z Geburtshilfe Neonatol 2008. [DOI: 10.1055/s-2008-1078957] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Huss-Marp J, Brockow K, Darsow U, Pfab F, Krämer U, Ring J, Behrendt H. Exposure of grass pollen to volatile organic compounds enhances skin prick test reactivity. J Investig Allergol Clin Immunol 2008; 18:408-409. [PMID: 18973109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/27/2023] Open
Affiliation(s)
- J Huss-Marp
- ZAUM - Center for Allergy and Environment, Division of Environmental Dermatology and Allergy, Helmholtz Center Munich / Technische Universität München, Munich, Germany.
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Daegelmann C, Herberth G, Röder S, Herbarth O, Giese T, Krämer U, Behrendt H, Borte M, Heinrich J, Emmrich F, Lehmann I. Association between suppressors of cytokine signalling, T-helper type 1/T-helper type 2 balance and allergic sensitization in children. Clin Exp Allergy 2007; 38:438-48. [PMID: 18167120 DOI: 10.1111/j.1365-2222.2007.02913.x] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
BACKGROUND Suppressors of cytokine signalling (SOCS) family members have been shown to play an important role in the balance of cytokines that determine the onset of T-helper type 1 (Th1)- and Th2-mediated immune responses. In particular, for cytokine-induced Src-homology 2 protein (CIS), SOCS1, SOCS3 and SOCS5, a role in the regulation of T cell differentiation has been discussed. However, only few data exist so far in the human system. OBJECTIVES The aim of the present study was to analyse the relationship between these suppressors and Th1/Th2 regulation as well as allergic sensitizations within a population-based study. METHODS Within the Lifestyle-Immune system-Allergy plus cohort study, mRNA was prepared from blood samples of 6-year-old children for the analysis of cytokines, transcription factors for T cell regulation and SOCS molecule expression by quantitative real-time polymerase chain reaction. In addition, total and specific IgE concentrations have been measured by the Pharmacia CAP System. A complete data set from 248 children was available. Results Among the SOCS molecules investigated, only SOCS1 showed a strong positive correlation to allergic sensitizations. In addition, an up-regulated SOCS1 expression correlated with down-regulated T-box expressed in T cells (Tbet) and higher expression levels of GATA-binding protein 3 (GATA-3) and IL-4. No association between SOCS1 and forkhead box P3 (FOXP3) was observed. For SOCS3, SOCS5 and CIS, a contradictory picture was found. The expression of these SOCS molecules was positively correlated with Tbet and FOXP3 and (with the exception of CIS) negatively with IL-4. CONCLUSIONS Our data suggest that SOCS3, SOCS5 and CIS, which correlate with an up-regulated Th1 and regulatory T cell activity, are without relevance for the allergic status. In contrast, SOCS1 might be involved in the development of a Th2-skewed immune response and subsequent allergic sensitizations.
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Affiliation(s)
- C Daegelmann
- Department of Environmental Immunology, UFZ - Helmholtz Centre for Environmental Research, Leipzig, Germany
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Abstract
The principles of maedi-visna eradication programmes were applied to a field trial for the eradication of ovine pulmonary adenocarcinoma (OPA). In two maternal flocks the prevalence of gross and histological lesions in slaughtered animals was 18.3 per cent and 29.8 per cent, respectively. The lambing period was supervised for three consecutive years from 1999 to 2001, during which the lambs were taken away from their mothers at birth, deprived of maternal colostrum, and hand-reared away from other sheep. Over the three-year period, 322 hand-reared animals, mainly male lambs between 10 and 14 months old, were slaughtered; their lungs were examined grossly, 52.5 per cent of them were examined histologically, and 105 samples of caudal mediastinal lymph nodes were examined by PCR. No OPA tumours were detected in the slaughter specimens from the derived flock, but one lamb had histological lesions in one lung location; intrauterine transmission was ruled out in this case. No clinical OPA has subsequently been observed in the hand-reared flock. Bronchoalveolar lavage samples from the breeding stock were examined by PCR in order to rule out further subclinical cases of OPA. No Jaagsiekte retrovirus was detected in any of the 488 samples.
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Affiliation(s)
- K Voigt
- Clinic for Swine, Small Ruminants, Forensic Medicine and Ambulatory Services, University of Veterinary Medicine Hannover, Foundation, Bischofsholer Damm 15, 30173 Hannover, Germany
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Krämer U, Illig T, Grune T, Krutmann J, Esser C. Strong associations of psoriasis with antigen processing LMP and transport genes TAP differ by gender and phenotype. Genes Immun 2007; 8:513-7. [PMID: 17581627 DOI: 10.1038/sj.gene.6364404] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Psoriasis, a skin disease with autoimmune features, can be triggered and exacerbated by genetic and environmental factors. Chemicals can break tolerance to self-antigens by interfering with antigen processing and presentation; therefore, proteins involved in antigen processing may affect susceptibility. We test here whether variants of immunoproteasome subunits LMP2 and LMP7, or antigen peptide transport proteins TAP1 (transporters associated with antigen presentation) and TAP2 are associated with psoriasis. We analyzed 7 single-nucleotide polymorphisms in 321 Caucasian (German) psoriasis patients and 235 unrelated controls by time-of-flight mass spectrometry, using the Sequenom platform. We found strong associations of psoriasis with variant alleles of LMP and TAP (OR(TAP_687): 3.3, 95% CI: 1.9-5.7). Genotype effects were generally stronger for males and LMP effects were mainly seen for psoriasis arthropathica. Our results will help define behavioral or drug treatment suggestions to patients and contribute to a better understanding of the role of low molecular weight chemicals in genetic susceptibility to autoimmune diseases.
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Affiliation(s)
- U Krämer
- Institut für Umweltmedizinische Forschung, Forschung, Auf' m Hennekamp 50, Düsseldorf, Germany
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