Effect of gestational diabetes mellitus on maternal thyroid function and body mass index

Résumé

Background: The exact influences of thyroid functions on body mass index (BMI) are ill-defined in euthyroid pregnant women with gestational diabetes mellitus (GDM). Objectives: To investigate the effect of GDM on maternal thyroid functions and BMI. Methods: A case- control study was conducted in Saad Abualila Hospital, Khartoum, Sudan June to August 2015. Cases included women with GDM and healthy pregnant women as controls. Thyroid hormones [thyroid-stimulating hormone (TSH), free tri-iodothyronine (FT3), and free thyroxine (FT4)] and anti-thyroid peroxidase (anti-TPO) and anti-thyroglobulin (anti-TG) antibodies were measured. Results: BMI was significantly increased in GDM patients (26.3 (2.7) Kg/m 2 ) compared with the control group (24.3(1.8) Kg/m 2 , P = 0.001). Levels of FT3 and FT4 were significantly decreased in GDM patients (0.632 (0.408 ─ 1.074) pg/ml; 0.672 (0.614 ─ 0.960) ng/dl) compared with the healthy pregnant women (0.820 (0.510─1.385) pg/ml, P = 0.021; 0.840 (0.767─1.200) ng/dl, P < 0.001). In contrast, anti-TPO and anti-TG were significantly higher in GDM patients (11.13 (7.969 ─13.090) IU/ml; 14.40 (10.91─20.69) IU/ml) compared with the control group (8.90 (6.375─10.48 IU/ml, P = 0.022; 10.50 (8.2─13.95) IU/ml, P = 0.010). BMI correlated negatively with FT3 ( r = ─ 0. 375, P = 0.002) and FT4 ( r = ─ 0. 316, P = 0.009) and positively with anti-TPO ( r = 0.361, P = 0.002) and anti-TG ( r = 0.393, P = 0.010). Conclusion: The present results add further evidence for decreased free thyroid hormones, increased anti-thyroid autoantibodies and higher BMI in patients with GDM compared to healthy pregnant women. BMI correlated directly with FT3 and FT4, but failed to demonstrate significant association with TSH.

Citer ce document

Accès au document

Ce document est hébergé sur son dépôt institutionnel d'origine.

Auteur(s)

Statistiques

Consultations : 2

Téléchargements : 0