Endometriosis is associated with aberrant metabolite profiles in plasma.
Schlüsselwörter
Abstrakt
OBJECTIVE
To identify metabolites that are associated with and predict the presence of endometriosis.
METHODS
Metabolomics study using state-of-the-art mass spectrometry approaches.
METHODS
University hospital and universities.
METHODS
Twenty-five women with laparoscopically confirmed endometriosis (cases) and 19 women with laparoscopically documented absence of endometriosis (controls). None of the women included in this study had received oral contraception or GnRH agonists for a minimum of 1 month before blood collection.
METHODS
Plasma collection.
METHODS
Metabolite profiles were generated and interrogated using multiple mass spectrometry methods, that is, high performance liquid chromatography coupled with negative mode electrospray ionization tandem mass spectrometry, UPLC-MS/MS, and ultra performance liquid chromatography-electroSpray ionization-quadrupole time-of-flight (UPLC-ESI-Q-TOF). Metabolite groups investigated included phospholipids, glycerophospholipids, ether-phospholipids, cholesterol-esters, triacylglycerol, sphingolipids, free fatty acids, steroids, eicosanoids, and acylcarnitines.
RESULTS
A panel of acylcarnitines predicted the presence of endometriosis with 88.9% specificity and 81.5% sensitivity in human plasma, with a positive predictive value of 75%. However, due to data limitations the outcome of the receiver operating characteristic curve analysis was not significant.
CONCLUSIONS
A diagnostic model based on acylcarnitines has the potential to predict the presence and stage of endometriosis.
