title: Influence of age and sex in exhaled breath samples investigated by means of infrared laser absorption spectroscopy.
abstract: Breath gas analysis provides insight into human metabolism of healthy and ill individuals. As an innovative and non-invasive method, it opens up options to improve diagnostics, monitoring and treatment decisions. Mid-infrared laser absorption spectroscopy is utilized to detect CH(4), H(2)O, CO(2), NH(3) and CH(3)OH in exhaled human breath. An off-line approach using breath sampling by means of Tedlar bags is applied. The breath gas samples are measured within the population-based epidemiological Study of Health in Pomerania (SHIP-TREND) performed at the University of Greifswald. The study covers about 5000 adult subjects aged 20-79 years within 3 years. Besides breath gas analysis many other examinations are conducted. It is expected to find associations between distinct concentration levels of species in the exhaled breath and diseases assessed in this study. The study will establish reference values for exhaled breath components and serve as background population for case-control studies. In the long run, morbidity and mortality follow-ups will be conducted, which will answer the question whether end-expiratory breath gas components predict future diseases and death. As first results, we present data from 45 dialysis patients (23 males, 22 females) which were recruited in a preliminary study in preparation for SHIP-TREND.
authors: INP Greifswald--Leibniz-Institute for Plasma Science and Technology, Felix-Hausdorff-Strasse 2, D-17489 Greifswald, Germany. hannemann@inp-greifswald.de
authors: M
authors: M
authors: Hannemann
authors: A
authors: A
authors: Antufjew
authors: K
authors: K
authors: Borgmann
authors: F
authors: F
authors: Hempel
authors: T
authors: T
authors: Ittermann
authors: S
authors: S
authors: Welzel
authors: K D
authors: KD
authors: Weltmann
authors: H
authors: H
authors: Völzke
authors: J
authors: J
authors: Röpcke
mesh_terms: D000328:Adult; D000367:Age Factors; D000368:Aged; D000388:Air / Q000032:analysis*; D001944:Breath Tests / Q000379:methods*; D045853:Exhalation; D005260:Female; D006801:Humans; D008168:Lung / Q000378:metabolism*; D008297:Male; D008875:Middle Aged; D012016:Reference Values; D015203:Reproducibility of Results; D012737:Sex Factors; D013055:Spectrophotometry, Infrared / Q000379:methods*; D055815:Young Adult