Low Maternal DLK1 Levels at 26 Weeks Is Associated With Small for Gestational Age at Birth - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Frontiers in Endocrinology Année : 2022

Low Maternal DLK1 Levels at 26 Weeks Is Associated With Small for Gestational Age at Birth

Résumé

Detecting SGA (small for gestational age) during pregnancy improves the fetal and neonatal prognosis. To date, there is no valid antenatal biomarker of SGA used in clinical practice. Maternal circulating DLK1 (delta-like non-canonical notch ligand 1) levels have been shown to be significantly lower in pregnant women at 36 weeks of gestation (WG) who delivered a SGA newborn than in controls. Data in the literature are contradictory on the association between maternal circulating DLK1 levels and placental vascular dysfunction. The objective was to determine if maternal DLK1 levels in the second trimester of pregnancy are predictive of SGA, and to assess whether the measurement of DLK1 levels in maternal blood could be a means to distinguish SGA with placental vascular dysfunction from that due to other causes. We conducted a nested cased-control study within the EDEN mother-child cohort. 193 SGA (birth weight < 10 th percentile) and 370 mother-child control (birth weight between the 25 th and 75 th percentile) matched pairs were identified in the EDEN cohort. Maternal circulating DLK1 levels at 26 WG were significantly lower for children born SGA than for controls (27.7 ± 8.7 ng/mL vs 30.4 ± 10.6 ng/mL, p = 0.001). Maternal blood DLK1 levels in the first quartile (DLK1 < 22.85 ng/mL) were associated with an odds ratio for SGA of 1.98 [1.15 - 3.37]. DLK1 was less predictive of SGA than ultrasound, with an area under the curve of 0.578. Maternal circulating DLK1 levels were not significantly different in cases of SGA with signs of placental vascular dysfunction (n = 63, 27.1 ± 9.2 ng/mL) than in those without placental dysfunction (n = 129, 28.0 ± 8.5 ng/mL, p = 0.53). The level of circulating DLK1 is reduced in the second trimester of pregnancy in cases of SGA at birth, independently of signs of placental vascular dysfunction. However, DLK1 alone cannot predict the risk of SGA.
Fichier principal
Vignette du fichier
Pham 2022 Front Endocrinol.pdf (1.13 Mo) Télécharger le fichier
Origine Fichiers éditeurs autorisés sur une archive ouverte

Dates et versions

hal-04026820 , version 1 (13-03-2023)

Licence

Identifiants

Citer

Aurelie Pham, Delphine Mitanchez, Anne Forhan, Laurence Perin, Yves Le Bouc, et al.. Low Maternal DLK1 Levels at 26 Weeks Is Associated With Small for Gestational Age at Birth. Frontiers in Endocrinology, 2022, 13, pp.836731. ⟨10.3389/fendo.2022.836731⟩. ⟨hal-04026820⟩
13 Consultations
22 Téléchargements

Altmetric

Partager

Gmail Mastodon Facebook X LinkedIn More