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- W3048238902 abstract "Abstract Children born small for gestational age (SGA) are at increased risk of future glucose intolerance and type 2 diabetes, possibly after due intrauterine metabolic programming. Soluble leptin receptor (SLR) limits leptin access to signal-transducing membrane receptors. The present study examines whether SGA and appropriate for gestational age (AGA) twins differ with regard to their C-peptide, glucose and leptin systems. The markers C-peptide, glucose, fetal leptin, and SLR in cord blood were assessed in children from dichorionic twin pregnancies at delivery. In 32 cases, weight differed by >15% between twins: one demonstrated Intrauterine Growth Retardation (IUGR) (<10th percentile-SGA), while the other did not (AGA I ). The other 67 pairs presented appropriate weight for gestational age (AGA II ). Placental leptin and placental leptin receptor content were also assessed. Despite the same concentrations of glucose, the SGA twins maintained a higher level of C-peptide [44.48 pmol/l vs. 20.91 pmol/l, p < 0.05] than the AGA I co-twins, higher HOMA index, calculated as [C-peptide] x [Glucose] ( p = 0.045), in cord blood, and a higher level of SLR [SGA vs AGA I —mean: 28.63 ng/ml vs. 19.91 ng/ml, p < 0.01], without any differences in total leptin ( p = 0.37). However, SGA placentas demonstrated higher leptin level [130.1 pg/100 g total protein vs 83.8 pg/100 g total protein, p = 0.03], without differences in placental leptin receptor ( p = 0.66). SGA/IUGR twins demonstrate relative insulin resistance accompanied by decreased fetal and increased placental leptin signaling. We speculate that relative insulin resistance and changes in the leptin system might be the first evidence of processes promoting deleterious metabolic programming for post-natal life." @default.
- W3048238902 created "2020-08-13" @default.
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- W3048238902 date "2020-08-10" @default.
- W3048238902 modified "2023-10-14" @default.
- W3048238902 title "C-Peptide and leptin system in dichorionic, small and appropriate for gestational age twins—possible link to metabolic programming?" @default.
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- W3048238902 doi "https://doi.org/10.1038/s41387-020-00131-2" @default.
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