Pentane and isoprene in expired air from humans: gas-chromatographic analysis of single breath

S Mendis, PA Sobotka, DE Euler - Clinical Chemistry, 1994 - academic.oup.com
Both pentane and isoprene are excreted in human breath. Although pentane is considered
an index of lipid peroxidation, the significance of isoprene is unknown. Having a similar …

Is pentane a normal constituent of human breath?

A Cailleux, P Allain - Free radical research communications, 1993 - Taylor & Francis
Breath analysis is a non-invasive method for investigation of the volatile compounds
produced by humans. Pentane has often been taken as an indicator of lipid peroxidation …

Pitfalls in the use of breath pentane measurements to assess lipid peroxidation.

JR Springfield, MD Levitt - Journal of lipid research, 1994 - ASBMB
Literature values for breath pentane, an indicator of lipid peroxidation, vary by 1,000-fold in
healthy subjects. This report describes multiple technical artifacts that may explain this …

Effect of cigarette smoking on pentane excretion in alveolar breath

DE Euler, SJ Dave, H Guo - Clinical chemistry, 1996 - academic.oup.com
The concentrations of acetone, isoprene, and pentane in alveolar breath were examined in
50 smokers and 50 nonsmokers by gas chromatography. The baseline pentane in smokers …

Expired hydrocarbons in patients with acute myocardial infarction

S Mendis, PA Sobotka, DE Euler - Free radical research, 1995 - Taylor & Francis
Pentane and isoprene concentrations were analyzed in single end-expiratory breath
samples using gas chromatography. Breath analysis was performed in 15 patients with …

Alveolar gradient of pentane in normal human breath

M Phillips, J Greenberg, M Sabas - Free radical research, 1994 - Taylor & Francis
Previous studies have raised the question of whether pentane is a normal constituent of
human breath, since its concentrations in inspired room air and expired breath are often …

Is n-pentane really an index of lipid peroxidation in humans and animals? A methodological reevaluation

D Kohlmuller, W Kochen - Analytical biochemistry, 1993 - Elsevier
Volatile hydrocarbons such as ethane and n-pentane are known to originate from
peroxidation of polyunsaturated fatty acids in membrane lipids and they are accepted as a …

A practical and reliable method for measuring ethane and pentane in expired air from humans

MD Knutson, AK Lim, FE Viteri - Free Radical Biology and Medicine, 1999 - Elsevier
We describe a method for the collection of expired air and further document the performance
of our analytical technique that is used to measure ethane and pentane simultaneously …

Determination of ethane, pentane and isoprene in exhaled air–effects of breath‐holding, flow rate and purified air

MAE Lärstad, K Torén, B Bake, AC Olin - Acta Physiologica, 2007 - Wiley Online Library
Aim: Exhaled ethane, pentane and isoprene have been proposed as biomarkers of oxidative
stress. The objectives were to explore whether ethane, pentane and isoprene are produced …

Methods for measuring ethane and pentane in expired air from rats and humans

MD Knutson, GJ Handelman, FE Viteri - Free Radical Biology and …, 2000 - Elsevier
Numerous studies in animals and humans provide evidence that ethane and pentane in
expired air are useful markers of in vivo lipid peroxidation. The measurement of breath …