Effects of Hypoxemia by Acute High-Altitude Exposure on Human Intestinal Flora and Metabolism

Autor: Ping Qi, Jin Lv, Liu-Hui Bai, Xiang-Dong Yan, Lei Zhang
Jazyk: angličtina
Rok vydání: 2023
Předmět:
Zdroj: Microorganisms, Vol 11, Iss 9, p 2284 (2023)
Druh dokumentu: article
ISSN: 2076-2607
DOI: 10.3390/microorganisms11092284
Popis: This study examined the effects of hypoxemia caused by acute high-altitude hypoxia (AHAH) exposure on the human intestinal flora and its metabolites. The changes in the intestinal flora, metabolism, and erythropoietin content in the AHAH population under altitude hypoxia conditions were comprehensively analyzed using 16S rRNA sequencing, metabonomics, and erythropoietin content. The results showed that compared with those in the control group (C group), the flora and metabolites in the hypoxemia group (D group) were altered. We found alterations in the flora according to the metabolic marker tyrosine through random forest and ROC analyses. Fecal and serum metabonomics analyses revealed that microbial metabolites could be absorbed into the blood and participate in human metabolism. Finally, a significant correlation between tyrosine and erythropoietin (EPO) content was found, which shows that human intestinal flora and its metabolites can help to confront altitude stress by regulating EPO levels. Our findings provide new insights into the adaptive mechanism and prevention of AHAH.
Databáze: Directory of Open Access Journals