Christine Contini1, B Sophia Winkler2, Nicolai Maass3, Ibrahim Alkatout4, Karl Winkler5, Ulrich Pecks6. 1. Institute of Clinical Chemistry and Laboratory Medicine, Medical Center - University of Freiburg, Hugstetter Straße 55, 79106 Freiburg, Germany. Electronic address: christine.contini@uniklinik-freiburg.de. 2. Department of Obstetrics and Gynecology, University Hospital of the RWTH, Pauwelsstraße 30, 52074 Aachen, Germany. Electronic address: bwinkler@ukaachen.de. 3. Department of Obstetrics and Gynecology, University Hospital Schleswig-Holstein, Arnold-Heller-Straße 3, 24105 Kiel, Germany. Electronic address: nicolai.maass@uksh.de. 4. Department of Obstetrics and Gynecology, University Hospital Schleswig-Holstein, Arnold-Heller-Straße 3, 24105 Kiel, Germany. Electronic address: ibrahim.alkatout@uksh.de. 5. Institute of Clinical Chemistry and Laboratory Medicine, Medical Center - University of Freiburg, Hugstetter Straße 55, 79106 Freiburg, Germany. Electronic address: karl.winkler@uniklinik-freiburg.de. 6. Department of Obstetrics and Gynecology, University Hospital of the RWTH, Pauwelsstraße 30, 52074 Aachen, Germany; Department of Obstetrics and Gynecology, University Hospital Schleswig-Holstein, Arnold-Heller-Straße 3, 24105 Kiel, Germany. Electronic address: ulrich.pecks@uksh.de.
Abstract
OBJECTIVE: Preeclampsia and intrauterine growth restriction (IUGR) are related conditions. We aimed to characterise common lipid changes. METHODS: Triglyceride and cholesterol levels of patients 24-42 weeks of gestation with IUGR (n = 52), hypertensive IUGR (HIUGR, n = 28), and preeclampsia without IUGR (PE, n = 56) were compared to a control group (CTRL, n = 167). In addition, 60 sera (n = 10 of each pathology IUGR, HIUGR, PE (without IUGR) compared to n = 30 matched CTRL) of severe early onset cases <34 weeks of gestation were chosen and further analysed by ultracentrifugation lipid subfractionation including VLDL, IDL, LDL, and HDL composition. RESULTS: In the full cohort we found low cholesterol in IUGR (p = 0.0405), while triglyceride levels were high in PE (p < 0.0001). Lipid concentrations in HIUGR did not differ significantly from CTRL. In the 60 patients analysed by lipid subfractionation, triglyceride levels were increased in the VLDL subfraction in PE (p < 0.01), however, LDL-bound ApoB and cholesterol levels were lower in IUGR and HIUGR (p < 0.0001 for total cholesterol and p < 0.001 for ApoB in both groups), but not in PE when compared to CTRL. CONCLUSION: Low cholesterol, especially LDL cholesterol levels are a feature of IUGR while high triglyceride levels are a feature of preeclampsia. Increased VLDL-triglycerides suggest a disturbed conversion to LDL in preeclampsia. Of note, the presence of IUGR in hypertensive disorders further alters lipid profiles, which may explain heterogeneous data on lipid values for preeclampsia in the literature. Study groups have to be selected carefully to avoid misinterpretation.
OBJECTIVE: Preeclampsia and intrauterine growth restriction (IUGR) are related conditions. We aimed to characterise common lipid changes. METHODS:Triglyceride and cholesterol levels of patients 24-42 weeks of gestation with IUGR (n = 52), hypertensive IUGR (HIUGR, n = 28), and preeclampsia without IUGR (PE, n = 56) were compared to a control group (CTRL, n = 167). In addition, 60 sera (n = 10 of each pathology IUGR, HIUGR, PE (without IUGR) compared to n = 30 matched CTRL) of severe early onset cases <34 weeks of gestation were chosen and further analysed by ultracentrifugation lipid subfractionation including VLDL, IDL, LDL, and HDL composition. RESULTS: In the full cohort we found low cholesterol in IUGR (p = 0.0405), while triglyceride levels were high in PE (p < 0.0001). Lipid concentrations in HIUGR did not differ significantly from CTRL. In the 60 patients analysed by lipid subfractionation, triglyceride levels were increased in the VLDL subfraction in PE (p < 0.01), however, LDL-bound ApoB and cholesterol levels were lower in IUGR and HIUGR (p < 0.0001 for total cholesterol and p < 0.001 for ApoB in both groups), but not in PE when compared to CTRL. CONCLUSION: Low cholesterol, especially LDL cholesterol levels are a feature of IUGR while high triglyceride levels are a feature of preeclampsia. Increased VLDL-triglycerides suggest a disturbed conversion to LDL in preeclampsia. Of note, the presence of IUGR in hypertensive disorders further alters lipid profiles, which may explain heterogeneous data on lipid values for preeclampsia in the literature. Study groups have to be selected carefully to avoid misinterpretation.
Authors: Sonia Nava-Salazar; Arturo Flores-Pliego; Giovanni Pérez-Martínez; Sandra Parra-Hernández; America Vanoye-Carlo; Francisco Ibarguengoitia-Ochoa; Otilia Perichart-Perera; Enrique Reyes-Muñoz; Juan Mario Solis-Paredes; Salvador Espino Y Sosa; Guadalupe Estrada-Gutierrez Journal: Reprod Sci Date: 2022-04-25 Impact factor: 3.060