Are Peripartum Changes in CCL2 Associated with Maternal Metabolic Status?

Area of Science:

• Reproductive biology
• Metabolic health
• Immunology

Background:

• Pregnancy involves significant metabolic and inflammatory adaptations.
• Subtle metabolic-inflammatory changes may occur even in uncomplicated pregnancies.
• C-C motif chemokine ligand 2 (CCL2) is implicated in inflammatory processes.

Purpose of the Study:

• To evaluate peripartum changes in C-C motif chemokine ligand 2 (CCL2) concentrations.
• To investigate the associations between CCL2 dynamics and maternal metabolic status in term pregnancies.
• To explore CCL2 as a potential biomarker for metabolic alterations.

Main Methods:

• Serum CCL2 measured pre-delivery and 48h postpartum; urinary CCL2 assessed postpartum.
• Body Mass Index (BMI) and its changes (ΔBMI) tracked throughout pregnancy and postpartum.
• Participants stratified based on ΔBMI (> 1 kg/m² vs. ≤ 1 kg/m²).

Main Results:

• Peripartum serum CCL2 changes differed significantly between ΔBMI groups.
• CCL2 correlated with HbA1c and body composition indices (fat tissue index, lean tissue index, body cell mass) in the total cohort.
• Specific metabolic markers (BMI, ferritin, creatinine, total body water, uric acid, triglycerides) showed differential associations with CCL2 based on ΔBMI.

Conclusions:

• Peripartum CCL2 dynamics appear to reflect maternal metabolic status, even in metabolically normal pregnancies.
• CCL2 shows promise as a marker for subtle metabolic alterations in late pregnancy and early postpartum.
• Further validation is needed for clinical application of CCL2 as a biomarker.