26 research outputs found
Assessment of gene-by-sex interaction effect on bone mineral density
To access publisher's full text version of this article. Please click on the hyperlink in Additional Links field.Sexual dimorphism in various bone phenotypes, including bone mineral density (BMD), is widely observed; however, the extent to which genes explain these sex differences is unclear. To identify variants with different effects by sex, we examined gene-by-sex autosomal interactions genome-wide, and performed expression quantitative trait loci (eQTL) analysis and bioinformatics network analysis. We conducted an autosomal genome-wide meta-analysis of gene-by-sex interaction on lumbar spine (LS) and femoral neck (FN) BMD in 25,353 individuals from 8 cohorts. In a second stage, we followed up the 12 top single-nucleotide polymorphisms (SNPs; pâ<â1âĂâ10(-5) ) in an additional set of 24,763 individuals. Gene-by-sex interaction and sex-specific effects were examined in these 12 SNPs. We detected one novel genome-wide significant interaction associated with LS-BMD at the Chr3p26.1-p25.1 locus, near the GRM7 gene (male effectâ=â0.02 and pâ=â3.0âĂâ10(-5) ; female effectâ=â-0.007 and pâ=â3.3âĂâ10(-2) ), and 11 suggestive loci associated with either FN- or LS-BMD in discovery cohorts. However, there was no evidence for genome-wide significant (pâ<â5âĂâ10(-8) ) gene-by-sex interaction in the joint analysis of discovery and replication cohorts. Despite the large collaborative effort, no genome-wide significant evidence for gene-by-sex interaction was found to influence BMD variation in this screen of autosomal markers. If they exist, gene-by-sex interactions for BMD probably have weak effects, accounting for less than 0.08% of the variation in these traits per implicated SNP. © 2012 American Society for Bone and Mineral Research.Medtronic
NIH R01 AG18728
R01HL088119
R01AR046838
U01 HL084756
R01 AR43351
P01-HL45522
R01-MH-078111
R01-MH-083824
Nutrition and Obesity Research Center of Maryland P30DK072488
NIAMS/NIH F32AR059469
Instituto de Salud Carlos III-FIS (Spanish Health Ministry) PI 06/0034
PI08/0183
Canadian Institutes of Health Research (CIHR)
NHLBI HHSN268201200036C
N01-HC-85239
N01-HC-85079
N01-HC-85086
N01-HC-35129
N01 HC15103
N01 HC-55222
N01-HC-75150
N01-HC-45133
HL080295
HL087652
HL105756
NIA AG-023629
AG-15928
AG-20098
AG-027058
N01AG62101
N01AG62103
N01AG62106
1R01AG032098-01A1
National Center of Advancing Translational Technologies CTSI UL1TR000124
National Institute of Diabetes and Digestive and Kidney Diseases DK063491
EUROSPAN (European Special Populations Research Network)
European Commission FP6 STRP grant 018947
LSHG-CT-2006-01947
Netherlands Organisation for Scientific Research
Erasmus MC
Centre for Medical Systems Biology (CMSB)
Netherlands Brain Foundation (HersenStichting Nederland)
US National Institute for Arthritis, Musculoskeletal and Skin Diseases
National Institute on Aging R01 AR/AG41398
R01 AR050066
R21 AR056405
National Heart, Lung, and Blood Institute's Framingham Heart Study N01-HC-25195
Affymetrix, Inc. N02-HL-6-4278
Canadian Institutes of Health Research from Institute of Aging 165446
Institute of Genetics 179433
Institute of Musculoskeletal health 221765
Intramural Research Program of the NIH, National Institute on Aging
National Institutes of Health HHSN268200782096C
Hong Kong Research Grant Council HKU 768610M
Bone Health Fund of HKU Foundation
KC Wong Education Foundation
Small Project Funding 201007176237
Matching Grant
CRCG Grant
Osteoporosis and Endocrine Research Fund
Genomics Strategic Research Theme of The University of Hong Kong
Netherlands Organisation of Scientific Research NWO Investments 175.010.2005.011
911-03-012
Research Institute for Diseases in the Elderly 014-93-015
Netherlands Genomics Initiative (NGI)/Netherlands Consortium for Healthy Aging (NCHA) 050-060-810
Erasmus Medical Center and Erasmus University, Rotterdam
Netherlands Organization for the Health Research and Development (ZonMw)
Research Institute for Diseases in the Elderly (RIDE)
Ministry of Education, Culture and Science
Ministry for Health, Welfare and Sports
European Commission (DG XII)
Municipality of Rotterdam
German Bundesministerium fur Forschung und Technology 01 AK 803 A-H
01 IG 07015
Materialien fuer Lithium-Ionen-Batterien mit fluessigen organischen Elektrolyten Abschlussbericht
Die derzeit kommerziell erhaeltlichen Li-Ion Zellen beinhalten LiCoO_2 als Kathodenmaterial und LiPF_6 als Leitsalz. Ziel des Projekts war Ersatz des teuren LiCoO_2 durch billige Mn-Spinelle Li_1_+_xMn_2O_4 und Entwicklung neuer Elektrolyte und Leitsalze. Realisiert wurde dies durch den Verbund von industriellen Partnern (Merck, VARTA) und Spezialisten aus der Forschung. Das Projekt konnte in den wesentlichen zwei Punkten zum Erfolg gefuehrt werden. Erstens durch die Erarbeitung einer kostenguenstigen Spinellsynthese, die erfolgreich in die Pilotproduktion ueberfuehrt werden konnte. Zweitens durch die Erarbeitung von Aufreinigungs- und Trocknungsmethoden fuer Li-Ion taugliche Loesungsmittel und die Ueberfuehrung dieser Methoden in den industriellen Massstab. Mit den neuen Materialien wurde ein Feldtest mit 50 Wickelzellen der Baugroesse AA durchgefuehrt. Die Testergebnisse zeigen, dass Zellen mit Li-Methid Elektrolyt gegenueber Standardzellen mit LiPF_6 Elektrolyt bei vergleichbaren elektrochemischen Daten ein verbessertes Sicherheitsverhalten zeigen. (orig.)In the commercial Lithium Ion Batteries LiCoO_2 as cathode and LiPF_6 as conductive salt is used. The objectives of the project were to replace the expensive LiCoO_2 by lithium manganese spinel Li_1_+_xMn_2O_4 and the development of new salts and electrolytes. This work was realized by the close cooperation of industrial partners and researchers from the university. Both objectives was accomplished successfully. It was elaborated a simple and cheap synthesis route for Li_1_+_xMn_2O_4 which was successfully scaled-up. Different methods of purification and drying to battery grade solvents were established and scaled up. With the new materials fifty AA-sized batteries were built and tested. The results showed that cells which contain Li-Methid conducting salt showed better safety characteristics as cells with LiPF_6-based electrolytes. (orig.)SIGLEAvailable from TIB Hannover: F99B739+a / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekBundesministerium fuer Bildung, Wissenschaft, Forschung und Technologie, Bonn (Germany)DEGerman
Adsorption of isoproturon, diuron and metsulfuronâmethyl in two soils at high soil:solution ratios
A critical comparison of typologies of small-scale forestry in Baden-WĂŒrttemberg derived using single and multiple criteria
The paper presents a typology of small-scale forest owners in Baden-WĂŒrttemberg based on multiple criteria and derived using multivariate cluster analysis of long-term accountancy network data. Four distinct types of landholders are identified based on a combination of structural, financial and biophysical data. These groups fit well with the present knowledge on small-scale forest owners in Baden-WĂŒrttemberg. In addition, the members of each group display clear differences in attitudes towards forestry, giving further support for the validity of the grouping. A comparison is made of this typology and typologies derived using the single criteria of forestry region, forest size class, cutting volume, proportion of coniferous trees, forest income and main source of income. This comparison demonstrates the advantages of using cluster analysis to identify types of small-scale forest owners in south-west Germany. No matter whether structural, natural or financial data are assessed, the multiple criteria typology produced by cluster analysis provides the highest percentage of statistically significant distinctions between the medians of the groups identified. A typology based on the single criterion of âregionsâ provides the second best fit and has the advantage of being simple to develop. A more detailed comparison between these two typologies, whereby the differences between groups were analysed based on the links between individual groups in respect to individual variables, also indicated that the multiple criteria typology was superior