Clinical trial NCT05146401: Associations of Plasma Fatty Acid Patterns With Gestational Diabetes Mellitus
Official title: Associations of Plasma Fatty Acid Patterns During Pregnancy With Gestational Diabetes Mellitus
Study type: OBSERVATIONAL
Overall status: COMPLETED
Conditions: Gestational Diabetes
Keywords: Fatty acid
Pattern
Gestational diabetes mellitus
Lead sponsor: Huazhong University of Science and Technology
Sponsor class: OTHER
First posted: 2021-12-06
Enrollment: 434
Sex: FEMALE
Minimum age (years): 21
Maximum age (years): 43
Standard ages: ADULT
Accepts healthy volunteers: yes
Observational model: CASE_CONTROL
Time perspective: CROSS_SECTIONAL
Sampling method: PROBABILITY_SAMPLE
Study population: All the participants enrolled were Chinese women. They gave informed written consent to the study and did not take any medication known to affect glucose tolerance or insulin secretion before participation.

Brief summary: Background: Limited studies have explored the difference of fatty acid profile between women with and without gestational diabetes mellitus (GDM), and the results were inconsistent. Individual fatty acids tend to be interrelated because of the shared food sources and metabolic pathways. Thus, whether fatty acid patters during pregnancy were related to GDM odds needs further exploration.

Objective: We aim to identify plasma fatty acid patters during pregnancy and their associations with odds of gestational diabetes mellitus (GDM).

Design: A hospital-based case-control study was carried out in urban Wuhan, China from August 2012 to April 2015. Pregnant women who screened for GDM at the outpatient clinics of the Department of Endocrinology, Tongji Hospital were invited to participant in the study. The inclusion criteria were as follows: 1) age ≥ 20 years; 2) gestational age at GDM screening ≥ 24 weeks; 3) singleton pregnancy. We excluded women who met any of the following items: history of diabetes (including but not limited to GDM), cardiovascular disease, cancer or other systemic diseases; pharmacologic treatment or dietary supplement use that might influence glucose or lipids metabolism; accompanied by other pregnancy complications; blood sample hemolysis or insufficiency; incomplete basic information. The diagnosis of GDM can be made if one or more glucose values are above the cut points of 5.1, 10.0 and 8.5 mmol/L at fasting, 1 and 2 h during a 75-gram oral glucose tolerance test (OGTT). Controls were randomly selected and individually matched to cases by age (± 2 years), gestational age (± 2 weeks) and parity. Finally, 217 GDM cases and 217 matched controls were selected in this study. All participants gave written informed consent before enrolling in the study. Fasting blood samples (≥ 8 h overnight fasting) were collected using anticoagulant tubes and centrifuged at 3000 rpm for 5 min. Plasma were separated from blood cells and stored at -80 ℃ for further assay. We measured plasma concentrations of fatty acids by gas chromatography - mass spectrometry, and derived potential fatty acid patterns trough principle components analysis. Conditional logistic regression and restricted cubic spline model were used to evaluate the associations between individual fatty acids or fatty acid patterns and odds of GDM.


Eligibility criteria: Inclusion Criteria:

* Age ≥ 20 years;
* Gestational age at GDM screening ≥ 24 weeks;
* Singleton pregnancy;
* With enough plasma collected for fatty acids detection.

Exclusion Criteria:

* History of diabetes (including but not limited to GDM), cardiovascular disease, cancer or other systemic diseases;
* History of receiving pharmacological treatment known to affect glucose metabolism;
* Incomplete basic information.

Primary outcomes:
measure: Gestational diabetes mellitus
timeFrame: gestation age ≥ 24 weeks
Secondary outcomes:
Other outcomes:
Locations:
Study officials:
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