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2016 ; 57
(4
): 687-96
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Detection and confirmation of serum lipid biomarkers for preeclampsia using
direct infusion mass spectrometry
#MMPMID26891737
Anand S
; Young S
; Esplin MS
; Peaden B
; Tolley HD
; Porter TF
; Varner MW
; D'Alton ME
; Jackson BJ
; Graves SW
J Lipid Res
2016[Apr]; 57
(4
): 687-96
PMID26891737
show ga
Despite substantial research, the early diagnosis of preeclampsia remains
elusive. Lipids are now recognized to be involved in regulation and
pathophysiology of some disease. Shotgun lipidomic studies were undertaken to
determine whether serum lipid biomarkers exist that predict preeclampsia later in
the same in pregnancy. A discovery study was performed using sera collected at
12-14 weeks pregnancy from 27 controls with uncomplicated pregnancies and 29
cases that later developed preeclampsia. Lipids were extracted and analyzed by
direct infusion into a TOF mass spectrometer. MS signals, demonstrating apparent
differences were selected, their abundances determined, and statistical
differences tested. Statistically significant lipid markers were reevaluated in a
second confirmatory study having 43 controls and 37 preeclampsia cases.
Multi-marker combinations were developed using those lipid biomarkers confirmed
in the second study. The initial study detected 45 potential preeclampsia
markers. Of these, 23 markers continued to be statistically significant in the
second confirmatory set. Most of these markers, representing several lipid
classes, were chemically characterized, typically providing lipid class and
potential molecular components using MS(2) Several multi-marker panels with areas
under the curve >0.85 and high predictive values were developed. Developed panels
of serum lipidomic biomarkers appear to be able to identify most women at risk
for preeclampsia in a given pregnancy at 12-14 weeks gestation.