A5035806616- Radioactivity and Radon Measurements
- Radioactive contamination and transfer
- Radiation Dose and Imaging
- Radioactive element chemistry and processing
- Trace Elements in Health
- Nuclear Physics and Applications
- Advanced Chemical Sensor Technologies
- Magnesium in Health and Disease
- Heavy Metal Exposure and Toxicity
- Radiopharmaceutical Chemistry and Applications
- Biochemical Analysis and Sensing Techniques
- Medical Imaging Techniques and Applications
- Air Quality and Health Impacts
- Graphite, nuclear technology, radiation studies
- Plant Micronutrient Interactions and Effects
- Nuclear and radioactivity studies
- Prostate Cancer Treatment and Research
- Metabolomics and Mass Spectrometry Studies
- Olfactory and Sensory Function Studies
- Chemical Synthesis and Characterization
- Iron Metabolism and Disorders
- Radiation Therapy and Dosimetry
- Geochemistry and Elemental Analysis
- Bone health and treatments
- Effects of Radiation Exposure
Helmholtz Zentrum München
2012-2025
Federal Office for Radiation Protection
2008-2011
Freie Universität Berlin
1986-2009
Institute of Groundwater Ecology
2003-2007
Institute of Bioinformatics and Systems Biology
2002
Institute of Molecular Biology
1992-1993
Breath gas analysis is a promising technology in the frame of medical diagnostics. By identifying disease-specific biomarkers breath patients, non-invasive and easy method for early diagnosis or therapy monitoring might be developed. However, to verify this potential develop diagnostic tools based on one essential prerequisite low variability measurement exhaled volatile organic compounds. Therefore, study has been undertaken order identify possible artefacts within application test...
Background: We present a pilot study on the feasibility of application and advantages online, noninvasive breath gas analysis (BGA) by proton transfer reaction quadrupole mass spectrometry for screening gestational diabetes mellitus (GDM) in 52 pregnant women means an oral glucose tolerance test (OGTT). Subjects Methods: collected identified samples end-tidal from patients during OGTT. Time evolution parameters challenge-responsive volatile organic compounds (VOCs) human were estimated....
To predict uranium in human hair due to chronic exposure through drinking water, a compartment representing was added into the biokinetic model developed by International Commission on Radiological Protection (ICRP). The compartmental used excretion as bioassay indicator elevated intakes. Two pathways, one starting from of plasma and other intermediate turnover soft tissue, are assumed transfer hair. rate determined reported contents urine hair, taking account growth 0.1 g d(-1). fractional...
Breath gas analysis in humans proved successful identifying disease states and assessing metabolic functions a non-invasive way. While many studies report diagnostic capability using volatile organic compounds (VOC) breath, the inter-individual variability even healthy human cohorts is rather large not completely understood its biochemical origin. Laboratory mice are predominant animal model system for disorders analysed under highly standardized controlled conditions. We established novel...
Abstract Purpose Ra-223 dichloride ( 223 Ra, Xofigo®) is used for treatment of patients suffering from castration-resistant metastatic prostate cancer. The objective this work was to apply the most recent biokinetic model radium and its progeny show their radiopharmacokinetic behaviour. Organ absorbed doses after intravenous injection Ra were estimated compared clinical data an earlier modelling study. Methods systemic progeny, developed by International Commission on Radiological Protection...
Journal Article Investigations on the activity concentrations of 238U, 226Ra, 228Ra, 210Pb and 40K in Jordan phosphogypsum fertilizers Get access J. Al-Jundi, Al-Jundi * 1Department Physics, Hashemite University, PO Box 150459, Zarqa, *Corresponding author: jaj@hu.edu.jo Search for other works by this author on: Oxford Academic PubMed Google Scholar N. Al-Ahmad, Al-Ahmad H. Shehadeh, Shehadeh 2Faculty Science, Prince Sultan Riyadh, Saudi Arabia F. Afaneh, Afaneh M. Maghrabi, Maghrabi U....
Male Wistar rats were fed diets with different Mg content, ranging from 70 to 850 ppm Mg, for 30 days. After 0, 10, 20 and days, some of the sacrificed measuring weight, lipid peroxidation, Fe, vitamin E, Na+, K+, Mg2+ Ca2+ content testes. morphology testes was investigated by electron microscopy. deficiency induced an increase in Fe a reduction K+ content. Vitamin E reduced malondialdehyde as indicator peroxidation increased. morphological alterations up 40% spermatids group, which...
The aim of the present study was to improve estimation soil-derived uranium absorption in humans. For this purpose, an vitro solubility assay combined with a human by using specific edible soil low uranium. mean bioaccessibility uranium, determined artificial gastrointestinal fluid, found be 7.7% standard deviation 0.2%. corresponding bioavailability humans assumed log-normal distributed geometric 0.04% and 95% confidence interval ranging from 0.0049% 0.34%. Both results were used calculate...
Radioactive isotopes of strontium, mainly 90Sr, released into the environment due to nuclear accidents may contribute significantly internal radiation exposure members public after ingestion strontium with contaminated foodstuffs. The committed dose is dependent on fraction ingested activity that crossed gut wall (f1 value). In tracer kinetic investigations, effect sodium alginate gastrointestinal absorption was studied in human subjects. Sodium proven be a potent agent for reducing high...