title: Changes in serum lipid and lipoprotein concentrations and compositions at birth and after 1 month of life in macrosomic infants of insulin-dependent diabetic mothers.
abstract: The aim of this study was to determine whether macrosomia related to maternal diabetes alters lipoprotein metabolism and whether these abnormalities still persist or regress after 1 month of life. Serum lipoprotein compositions and concentrations as well as serum lipid fatty acid compositions were investigated in macrosomic infants (birth weight = 4840 +/- 105 g at term) of insulin-dependent diabetic mothers at birth and after 1 month of life, and were compared to those of control infants (birth weight = 3400 +/- 198 g at term) of healthy mothers. Compared to controls, at birth, macrosomic newborns had higher serum lipids, apolipoprotein A-I and B-100, and lipoprotein (very low density lipoprotein, low density lipoprotein, high density lipoprotein-2 and high density lipoprotein-3) levels. Higher percentages of C18:2n-6 in serum triacylglycerols, phospholipids and cholesteryl esters were also observed. At day 30, in macrosomics, serum triacylglycerol, apo B-100, very low density lipoprotein and low density lipoprotein levels were still significantly higher. C18:2n-6 and C18:3n-3 contents in serum phospholipids, triacylglycerols and cholesteryl esters were reduced while C20:4n-6 and C22:6n-3 contents in serum phospholipids and cholesteryl esters were enhanced, compared to control values. Macrosomia was associated with alterations in lipoprotein compositions and concentrations at birth, some of which persisted after 1 month of life, and might play a role in the pathogenesis of diabetes and atherosclerosis in adult life.
authors.affiliation: Laboratoire de Physiologie Animale, Université de Tlemcen, Algeria.
authors.forename: H
authors.initials: H
authors.lastname: Merzouk
authors.forename: S
authors.initials: S
authors.lastname: Madani
authors.forename: J
authors.initials: J
authors.lastname: Prost
authors.forename: B
authors.initials: B
authors.lastname: Loukidi
authors.forename: M
authors.initials: M
authors.lastname: Meghelli-Bouchenak
authors.forename: J
authors.initials: J
authors.lastname: Belleville
mesh_terms: D016022:Case-Control Studies; D003922:Diabetes Mellitus, Type 1; D005227:Fatty Acids / Q000097:blood; D005260:Female; D005320:Fetal Macrosomia / Q000097:blood*; D006801:Humans; D007231:Infant, Newborn / Q000097:blood; D008055:Lipids / Q000097:blood*; D008074:Lipoproteins / Q000097:blood / Q000378:metabolism*; D011247:Pregnancy; D011254:Pregnancy in Diabetics; D012016:Reference Values
chemical_list: D005227:Fatty Acids; D008055:Lipids; D008074:Lipoproteins