Rapid Detection of Gut Microbial Metabolite Trimethylamine N-Oxide for Chronic Kidney Disease Prevention

Autor: Chien-Cheng Wang, Chih-Hsuan Wang, Hung-Wei Yang, Yi-Hsuan Chu, Yu-Chun Chang, You-Lin Tain
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Biosensors
Volume 11
Issue 9
Biosensors, Vol 11, Iss 339, p 339 (2021)
ISSN: 2079-6374
DOI: 10.3390/bios11090339
Popis: The gut microbiota plays a critical role in chronic kidney disease (CKD) and hypertension. Trimethylamine-N-oxide (TMAO) and trimethylamine (TMA) are gut microbiota-derived metabolites, and both are known uraemic toxins that are implicated in CKD, atherosclerosis, colorectal cancer and cardiovascular risk. Therefore, the detection and quantification of TMAO, which is a metabolite from gut microbes, are important for the diagnosis of diseases such as atherosclerosis, thrombosis and colorectal cancer. In this study, a new “colour-switch” method that is based on the combination of a plasma separation pad/absorption pad and polyallylamine hydrochloride-capped manganese dioxide (PAH@MnO2) nanozyme was developed for the direct quantitative detection of TMAO in whole blood without blood sample pretreatment. As a proof of concept, a limit of quantitation (LOQ) of less than 6.7 μM for TMAO was obtained with a wide linear quantification range from 15.6 to 500 μM through quantitative analysis, thereby suggesting potential clinical applications in blood TMAO monitoring for CKD patients.
Databáze: OpenAIRE