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Published on: March 23, 2013
Gender affects 13C-ketoisocaproic acid breath test
M Candelli1, A Armuzzi, L Miele
1Internal Medicine Department, Catholic University of Rome, Italy. mcandelli@gmail.com
European Review for Medical and Pharmacological Sciences
|March 1, 2008
Summary
Gender impacts mitochondrial function, with females showing higher 13C-Ketoisocaproic Acid oxidation. Ethanol reduces this oxidation, particularly in women, suggesting hormonal influences on Kica metabolism.
Area of Science:
- Biochemistry
- Human Physiology
- Metabolic Research
Background:
- The 13C-Ketoisocaproic Acid Breath Test (13C-Kica-BT) is a tool for assessing mitochondrial function.
- Investigating gender-based differences in mitochondrial oxidation is crucial for understanding metabolic health.
Purpose of the Study:
- To evaluate gender-specific differences in mitochondrial oxidation using 13C-Kica-BT.
- To assess the impact of acute ethanol-induced oxidative stress on mitochondrial function in relation to gender.
Main Methods:
- 50 healthy volunteers underwent 13C-Kica-BT under basal conditions and after ethanol administration.
- Breath samples were collected over 2 hours post-ingestion for 13CO2 analysis.
- Isotope ratio/mass spectrometry was used to quantify 13CO2 enrichment.
Main Results:
- Females exhibited significantly higher 13C-Ketoisocaproic acid oxidation at baseline compared to males.
- Ethanol ingestion significantly reduced Ketoisocaproic acid oxidation in all participants.
- No significant gender differences in oxidation were observed after ethanol administration.
Conclusions:
- Female subjects demonstrate a higher rate of 13C-Kica decarboxylation.
- Ethanol impairs Kica decarboxylation, with a more pronounced effect observed in women.
- Further research is needed to explore the role of sex hormones in Kica metabolism.
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