Increase of Acetone and Ammonia in Urine Headspace and Breath during Ovulation Quatified using Selected Ion Flow Tube Mass Spectrometry.

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F03%3A54030041" target="_blank" >RIV/61388955:_____/03:54030041 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Increase of Acetone and Ammonia in Urine Headspace and Breath during Ovulation Quatified using Selected Ion Flow Tube Mass Spectrometry.

Original language description

Selected ion flow tube mass spectrometry (SIFT-MS) has been used for a detailed study of the daily variations in the acetone and ammonia content of the headspace above urine from a healthy female subject over the course of three separate menstrual cycles. Midstream urine samples were taken every morning prior to any food intake and the headspace subsequently analysed for a number of metabolites. Concurrent with the time of ovulation, a 3-to-12-fold increase in the level of acetone in the urine headspacewas observed. The successive peaks in acetone level and the subsequent return to baseline values were mirrored by similar increases in the ammonia levels, but these were a day out of phase. Interestingly, parallel breath analyses at ovulation showed nogreat increase in either acetone or ammonia above their normal morning levels, suggesting that these metabolites had been removed from the body during the night by the usual metabolic and physiological processes.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

CF - Physical chemistry and theoretical chemistry

OECD FORD branch

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Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2003

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Physiological Measurement

ISSN

0967-3334

e-ISSN

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Volume of the periodical

24

Issue of the periodical within the volume

N/A

Country of publishing house

GB - UNITED KINGDOM

Number of pages

9

Pages from-to

191-199

UT code for WoS article

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EID of the result in the Scopus database

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