title: Plasma levels and placental expression of vaspin in pregnant women with diabetes mellitus.
abstract: The present study aimed to investigate visceral adipose tissue-specific serpin (vaspin) concentrations in serum and term placentas and relate these values to insulin resistance and lipid parameters in women with gestational diabetes mellitus (GDM). A total of 30 GDM subjects and 27 age-matched pregnant women with normal glucose tolerance (NGT, control) were included. Serum glucose, glycated hemoglobin (HbA1c), lipid profile, insulin, and vaspin were measured at the end of pregnancy, and homeostasis model of assessment-insulin resistance (HOMA-IR) values were calculated. Vaspin mRNA and protein levels in placentas were measured by real-time fluorescence quantitative reverse transcription polymerase chain reaction (RT-qPCR) and Western blotting, respectively. Serum vaspin levels were significantly lower in the GDM group than in controls (0.49 ± 0.24 vs 0.83 ± 0.27 ng/mL, respectively; P<0.01). Three days after delivery, serum vaspin levels were significantly decreased in subjects with GDM (0.36 ± 0.13 vs 0.49 ± 0.24 ng/mL, P<0.01). However, in the GDM group, serum vaspin levels were not correlated with the parameters evaluated. In contrast, in the control group, serum vaspin levels were positively correlated with triglycerides (TG; r=0.45, P=0.02) and very low-density lipoprotein cholesterol (VLDL-C; r=0.42, P=0.03). Placental mRNA vaspin (0.60 ± 0.32 vs 0.68 ± 0.32, P=0.46) and protein (0.30 ± 0.08 vs 0.39 ± 0.26; P=0.33) levels in the GDM group did not differ significantly from those in the control group, but were negatively correlated with neonatal birth weight in the GDM group (r=-0.48, P=0.03; r=-0.88; P<0.01). Our findings indicated that vaspin may be an important adipokine involved in carbohydrate and lipid metabolism and may also play a role in fetal development.
authors.affiliation: Internal Medicine Teaching and Research Room, Hebei Medical University, Shijiazhuang, Hebei, China.
authors.forename: Y
authors.initials: Y
authors.lastname: Huo
authors.affiliation: Department of Obstetrics and Gynecology, Hebei General Hospital, China.
authors.forename: S X
authors.initials: SX
authors.lastname: Liu
authors.affiliation: Internal Medicine Teaching and Research Room, Hebei Medical University, Shijiazhuang, Hebei, China.
authors.forename: G Y
authors.initials: GY
authors.lastname: Song
authors.affiliation: Department of Endocrinology, Hebei General Hospital, China.
authors.forename: L P
authors.initials: LP
authors.lastname: Ren
authors.affiliation: Department of Endocrinology, Hebei General Hospital, China.
authors.forename: C
authors.initials: C
authors.lastname: Wang
authors.affiliation: Department of Endocrinology, Hebei General Hospital, China.
authors.forename: D H
authors.initials: DH
authors.lastname: Zhang
mesh_terms: D000328:Adult; D015415:Biomarkers / Q000097:blood; D001786:Blood Glucose / Q000032:analysis; D016022:Case-Control Studies; D016640:Diabetes, Gestational / Q000097:blood* / Q000378:metabolism; D005260:Female; D006442:Glycated Hemoglobin / Q000032:analysis; D006706:Homeostasis; D006801:Humans; D007328:Insulin / Q000097:blood; D008055:Lipids / Q000097:blood; D010920:Placenta / Q000378:metabolism*; D011247:Pregnancy; D015843:Serpins / Q000097:blood / Q000378:metabolism*
chemical_list: D015415:Biomarkers; D001786:Blood Glucose; D006442:Glycated Hemoglobin; D007328:Insulin; D008055:Lipids; D015843:Serpins; C507339:SERPINA12 protein, human