Breath analysis as promising indicator of hemodialysis efficiency
| Autor: | Grabowska-Polanowska, B., Miarka, Przemysław, Skowron, M., Chmiel, G., Pietrzycka, Agata, Śliwka, I. |
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| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Male
medicine.medical_specialty Physiology medicine.medical_treatment 030232 urology & nephrology Trimethylamine 030204 cardiovascular system & hematology Gas Chromatography-Mass Spectrometry Methylamines 03 medical and health sciences chemistry.chemical_compound Hemiterpenes 0302 clinical medicine Predictive Value of Tests Renal Dialysis Physiology (medical) Internal medicine Butadienes Humans Urea Medicine Isoprene Breath test Creatinine Chromatography medicine.diagnostic_test business.industry Reproducibility of Results Middle Aged Treatment Outcome Breath Tests chemistry Breath gas analysis Nephrology Kidney Failure Chronic Female Hemodialysis business Dialysis (biochemistry) Biomarkers |
| Popis: | The measurement of trimethylamine and isoprene in exhaled breath collected from dialysed patients indicates the changes in concentration of both compounds during dialysis. The aim of the presented study was to confirm diagnostic usefulness of TMA and isoprene detected in breath, as potential biomarkers of hemodialysis efficiency. The samples of exhaled breath were collected from 22 dialyzed patients (9 women, 13 men) before and after hemodialysis (HD). All analyses were carried out using a gas chromatograph equipped with a mass spectrometer. Thermal desorption was used as breath sample enrichment method. Chromatographic analysis of breath samples indicated statistically significant differences in trimethylamine (TMA) and 2-methyl-1,3-butadiene (isoprene) concentrations in patients’ breath collected before and after HD. TMA concentrations measured in breath samples, before dialysis, ranged from 0.024 to 0.461 nmol/L. After dialysis, the values of detected TMA were lower versus output values and ranged from 0.008 to 0.050 nmol/L. Isoprene concentrations before dialysis were present in the range from 0.236 to 9.718 nmol/L, after dialysis in the range from 0.478 to 26.182 nmol/L. Additionally, the dependences of TMA and isoprene concentrations, detected in breath with renal efficiency parameters detected in blood, were studied. The relationships between TMA and urea (r = 0.67; p |
| Databáze: | OpenAIRE |
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