期刊
EUROPEAN JOURNAL OF CLINICAL INVESTIGATION
卷 40, 期 9, 页码 843-850出版社
WILEY
DOI: 10.1111/j.1365-2362.2010.02331.x
关键词
Ketoisocaproate breath test; liver disease; methionine breath test; mitochondria; octanoate breath test
P>Background Mitochondria play a major role in cell energetic metabolism; therefore, mitochondrial dysfunction inevitably participates in or even determines the onset and progression of chronic liver diseases. The assessment of mitochondrial function in vivo, by providing more insight into the pathogenesis of liver diseases, would be a helpful tool to study specific hepatic functions and to develop rational diagnostic, prognostic and therapeutic strategies. Design This review focuses on the utility of breath tests to assess mitochondrial function in humans and experimental animals. Results The introduction in the clinical setting of specific breath tests may allow elegantly and noninvasively overcoming the difficulties caused by previous complex techniques and might provide clinically relevant information, i.e the effects of drugs on mitochondria. Substrates meeting this requirement are alpha-keto-isocaproic acid and methionine that are both decarboxylated by mitochondria. Long-and medium-chain fatty acids that are metabolized through the Krebs cycle, and benzoic acid which undergoes glycine conjugation, may also reflect the function of mitochondria. Conclusions Breath tests to assess in vivo mitochondrial function in humans represent a potentially useful diagnostic and prognostic tool in clinical investigation.
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