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Liu Q, Wu L, Wang L, Chen K, Wu Y, Xia J, Wang Y. Associations between maternal mid-pregnancy apolipoprotein A-1, apolipoprotein B, apolipoprotein B/apolipoprotein A-1 ratio and preterm birth. Clin Chim Acta 2022; 536:12-17. [PMID: 36113556 DOI: 10.1016/j.cca.2022.08.028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Revised: 08/17/2022] [Accepted: 08/30/2022] [Indexed: 12/01/2022]
Abstract
BACKGROUND AND AIMS Elevated lipid levels during pregnancy have been shown to be related to the risk of preterm birth. Despite the importance of apolipoprotein (Apo) in lipid metabolism and transportation, evidence regarding apolipoprotein levels during pregnancy and preterm birth is still limited. Therefore, we aim to investigate the associations between maternal ApoA-1, ApoB, ApoB/ApoA-1 ratio and preterm birth. MATERIALS AND METH Data were extracted from the information system of Guangdong Women and Children Hospital. Lipoprotein levels were tested using Beckman Coulter AU5800 in mid-pregnancy at a median gestational age of 18 w. Maternal serum ApoB, ApoA-1 and ApoB/ApoA-1 ratio were categorized into tertiles. Logistic regression models were performed to evaluate the odds ratios and 95% confidence intervals for preterm birth. RESULTS A total of 5,986 maternal-newborn pairs were included in this study. The rate of preterm birth was 5.7% (n = 344). The multivariate-adjusted ORs (95% CI) of preterm birth were 1.51 (1.06, 2.10) for individuals with high ApoB (>90th), 0.63 (0.38, 0.99) for those with low ApoB (<10th), and 1.64 (1.18, 2.24) for those with high ApoB/ApoA-1 (>90th). Subgroup analyses showed that the association of ApoB and preterm birth was only significant among women with pre-pregnancy BMI 18.5-24 kg/m2 (OR = 1.36, 95% CI: 1.12-1.65), age at delivery ≥ 35 years (OR = 1.43, 95% CI: 1.12-1.83). CONCLUSION Elevated maternal ApoB level and ApoB/ApoA-1 ratio during mid-pregnancy were related to increased risk of preterm birth. Monitoring maternal serum apolipoprotein levels may help to identify the high-risk population of preterm birth.
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Affiliation(s)
- Qing Liu
- Department of Maternal and Child Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China; Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (Incubation), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Li Wu
- Institute of Maternal and Child Health, Guangdong Women and Children Hospital, Guangzhou, Guangdong, China
| | - Lulin Wang
- Department of Maternal and Child Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China; Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (Incubation), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Kai Chen
- Department of Maternal and Child Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China; Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (Incubation), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Yuntao Wu
- Institute of Maternal and Child Health, Guangdong Women and Children Hospital, Guangzhou, Guangdong, China.
| | - Jianhong Xia
- Institute of Maternal and Child Health, Guangdong Women and Children Hospital, Guangzhou, Guangdong, China.
| | - Youjie Wang
- Department of Maternal and Child Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China; Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (Incubation), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China.
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Miranda J, Simões RV, Paules C, Cañueto D, Pardo-Cea MA, García-Martín ML, Crovetto F, Fuertes-Martin R, Domenech M, Gómez-Roig MD, Eixarch E, Estruch R, Hansson SR, Amigó N, Cañellas N, Crispi F, Gratacós E. Metabolic profiling and targeted lipidomics reveals a disturbed lipid profile in mothers and fetuses with intrauterine growth restriction. Sci Rep 2018; 8:13614. [PMID: 30206284 PMCID: PMC6134091 DOI: 10.1038/s41598-018-31832-5] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Accepted: 08/13/2018] [Indexed: 12/11/2022] Open
Abstract
Fetal growth may be impaired by poor placental function or maternal conditions, each of which can influence the transfer of nutrients and oxygen from the mother to the developing fetus. Large-scale studies of metabolites (metabolomics) are key to understand cellular metabolism and pathophysiology of human conditions. Herein, maternal and cord blood plasma samples were used for NMR-based metabolic fingerprinting and profiling, including analysis of the enrichment of circulating lipid classes and subclasses, as well as the number of sub-fraction particles and their size. Changes in phosphatidylcholines and glycoproteins were prominent in growth-restricted fetuses indicating significant alterations in their abundance and biophysical properties. Lipoprotein profiles showed significantly lower plasma concentrations of cholesterol-intermediate density lipoprotein (IDL), triglycerides-IDL and high-density lipoprotein (HDL) in mothers of growth-restricted fetuses compared to controls (p < 0.05). In contrast, growth-restricted fetuses had significantly higher plasma concentrations of cholesterol and triglycerides transporting lipoproteins [LDL, IDL, and VLDL, (p < 0.005; all)], as well as increased VLDL particle types (large, medium and small). Significant changes in plasma concentrations of formate, histidine, isoleucine and citrate in growth-restricted fetuses were also observed. Comprehensive metabolic profiling reveals that both, mother and fetuses of pregnancies complicated with fetal growth restriction have a substantial disruption in lipid metabolism.
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Affiliation(s)
- Jezid Miranda
- Fetal i+D Fetal Medicine Research, BCNatal - Barcelona Center for Maternal-Fetal and Neonatal Medicine (Hospital Clínic and Hospital Sant Joan de Deu), Institut Clinic de Ginecologia, Obstetricia i Neonatologia, IDIBAPS, University of Barcelona, and Centre for Biomedical Research on Rare Diseases (CIBER-ER), Barcelona, Spain
| | - Rui V Simões
- Fetal i+D Fetal Medicine Research, BCNatal - Barcelona Center for Maternal-Fetal and Neonatal Medicine (Hospital Clínic and Hospital Sant Joan de Deu), Institut Clinic de Ginecologia, Obstetricia i Neonatologia, IDIBAPS, University of Barcelona, and Centre for Biomedical Research on Rare Diseases (CIBER-ER), Barcelona, Spain
| | - Cristina Paules
- Fetal i+D Fetal Medicine Research, BCNatal - Barcelona Center for Maternal-Fetal and Neonatal Medicine (Hospital Clínic and Hospital Sant Joan de Deu), Institut Clinic de Ginecologia, Obstetricia i Neonatologia, IDIBAPS, University of Barcelona, and Centre for Biomedical Research on Rare Diseases (CIBER-ER), Barcelona, Spain
| | - Daniel Cañueto
- Metabolomics Platform, IISPV, DEEiA, Universidad Rovira i Virgili, Tarragona, Spain
| | | | - María L García-Martín
- BIONAND, Andalusian Centre for Nanomedicine and Biotechnology, Junta de Andalucía, Universidad de Málaga, Málaga, Spain
| | - Francesca Crovetto
- Fetal i+D Fetal Medicine Research, BCNatal - Barcelona Center for Maternal-Fetal and Neonatal Medicine (Hospital Clínic and Hospital Sant Joan de Deu), Institut Clinic de Ginecologia, Obstetricia i Neonatologia, IDIBAPS, University of Barcelona, and Centre for Biomedical Research on Rare Diseases (CIBER-ER), Barcelona, Spain
| | - Rocio Fuertes-Martin
- Metabolomics Platform, IISPV, DEEiA, Universidad Rovira i Virgili, Tarragona, Spain
- Biosfer Teslab, Reus, Spain
| | - Monica Domenech
- Hospital Clínic, Institut d'Investigacions Biomèdiques August Pi i Sunyer, University of Barcelona, Barcelona, Spain
| | - María D Gómez-Roig
- Fetal i+D Fetal Medicine Research, BCNatal - Barcelona Center for Maternal-Fetal and Neonatal Medicine (Hospital Clínic and Hospital Sant Joan de Deu), Institut Clinic de Ginecologia, Obstetricia i Neonatologia, IDIBAPS, University of Barcelona, and Centre for Biomedical Research on Rare Diseases (CIBER-ER), Barcelona, Spain
| | - Elisenda Eixarch
- Fetal i+D Fetal Medicine Research, BCNatal - Barcelona Center for Maternal-Fetal and Neonatal Medicine (Hospital Clínic and Hospital Sant Joan de Deu), Institut Clinic de Ginecologia, Obstetricia i Neonatologia, IDIBAPS, University of Barcelona, and Centre for Biomedical Research on Rare Diseases (CIBER-ER), Barcelona, Spain
| | - Ramon Estruch
- Hospital Clínic, Institut d'Investigacions Biomèdiques August Pi i Sunyer, University of Barcelona, Barcelona, Spain
- CIBER Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, Madrid, Spain
| | - Stefan R Hansson
- Department of Obstetrics and Gynecology, Institute of Clinical Sciences, Lund University, Sweden; Skåne University Hospital, Lund, Sweden
| | | | - Nicolau Cañellas
- Metabolomics Platform, IISPV, DEEiA, Universidad Rovira i Virgili, Tarragona, Spain
- CIBERDEM, Spanish Biomedical Research Centre in Diabetes and Associated Metabolic Disorders, Madrid, Spain
| | - Fatima Crispi
- Fetal i+D Fetal Medicine Research, BCNatal - Barcelona Center for Maternal-Fetal and Neonatal Medicine (Hospital Clínic and Hospital Sant Joan de Deu), Institut Clinic de Ginecologia, Obstetricia i Neonatologia, IDIBAPS, University of Barcelona, and Centre for Biomedical Research on Rare Diseases (CIBER-ER), Barcelona, Spain.
| | - Eduard Gratacós
- Fetal i+D Fetal Medicine Research, BCNatal - Barcelona Center for Maternal-Fetal and Neonatal Medicine (Hospital Clínic and Hospital Sant Joan de Deu), Institut Clinic de Ginecologia, Obstetricia i Neonatologia, IDIBAPS, University of Barcelona, and Centre for Biomedical Research on Rare Diseases (CIBER-ER), Barcelona, Spain
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Leung TN, Lam CWK, To KF, Haines CJ. Changes in Concentrations of Lipoprotein (A) and Other Lipids and Lipoproteins in Pregnancies Complicated by Pregnancy-Induced Hypertension or Intrauterine Growth Retardation. Hypertens Pregnancy 2009. [DOI: 10.3109/10641959809006072] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Saker M, Soulimane Mokhtari N, Merzouk SA, Merzouk H, Belarbi B, Narce M. Oxidant and antioxidant status in mothers and their newborns according to birthweight. Eur J Obstet Gynecol Reprod Biol 2008; 141:95-9. [PMID: 18760523 DOI: 10.1016/j.ejogrb.2008.07.013] [Citation(s) in RCA: 89] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2007] [Revised: 05/30/2008] [Accepted: 07/06/2008] [Indexed: 10/21/2022]
Abstract
OBJECTIVE The aim of this study is to determine the oxidant and antioxidant status in Algerian mothers and their newborns according to birth weight. STUDY DESIGN Subjects for the study were consecutively recruited from Tlemcen hospital. 139 pregnant women and their newborns were included. The plasma total antioxidant activity (ORAC), vitamins A, C, E, hydroperoxides, carbonyl proteins, and erythrocyte antioxidant enzyme activities (catalase, glutathione peroxidase, glutathione reductase and superoxide dismutase) were measured on mothers and their newborns. Lipid and lipoprotein parameters were also determined. The results were assessed in accordance with small for gestational age (SGA), appropriate (AGA) and large (LGA) birth weight of the newborn. RESULTS SGA newborns and their mothers had low ORAC, vitamin C and E values (P<0.01) and high plasma hydroperoxide and carbonyl protein levels (P<0.01) compared to AGA groups. The SGA group showed also altered erythrocyte antioxidant enzyme activities and several lipid and lipoprotein changes. In LGA compared to control newborns, hydroperoxide, carbonyl protein levels and SOD activity were enhanced while ORAC, vitamin A and E levels were reduced. However, oxidant and antioxidant status in their mothers was similar to that in control mothers. CONCLUSION Oxidative stress is present in both SGA and LGA newborns, with a concomitant alteration in maternal oxidant and antioxidant status only in intrauterine growth restriction.
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Affiliation(s)
- Meriem Saker
- Department of Biology, Faculty of Sciences, University of Tlemcen, Algeria
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Magnusson-Olsson AL, Lager S, Jacobsson B, Jansson T, Powell TL. Effect of maternal triglycerides and free fatty acids on placental LPL in cultured primary trophoblast cells and in a case of maternal LPL deficiency. Am J Physiol Endocrinol Metab 2007; 293:E24-30. [PMID: 17299085 DOI: 10.1152/ajpendo.00571.2006] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Maternal hypertriglyceridemia is a normal condition in late gestation and is an adaptation to ensure an adequate nutrient supply to the fetus. Placental lipoprotein lipase (LPL) is involved in the initial step in transplacental fatty acid transport as it hydrolyzes maternal triglycerides (TG) to release free fatty acids (FFA). We investigated LPL activity and protein (Western blot) and mRNA expression (real-time RT-PCR) in the placenta of an LPL-deficient mother with marked hypertriglyceridemia. The LPL activity was fourfold lower, LPL protein expression 50% lower, and mRNA expression threefold higher than that of normal, healthy placentas at term (n = 4-7). To further investigate the role of maternal lipids in placental LPL regulation, we isolated placental cytotrophoblasts from term placentas and studied LPL activity and protein and mRNA expression after incubation in Intralipid (as a source of TG) and oleic, linoleic, and a combination of oleic, linoleic, and arachidonic acids as well as insulin. Intralipid (40 and 400 mg/dl) decreased LPL activity by approximately 30% (n = 10-14, P < 0.05) and 400 microM linoleic and linoleic-oleic-arachidonic acid (n = 10) decreased LPL activity by 37 and 34%, respectively. No major changes were observed in LPL protein or mRNA expression. We found no effect of insulin on LPL activity or protein expression in the cultured trophoblasts. To conclude, the activity of placental LPL is reduced by high levels of maternal TG and/or FFA. This regulatory mechanism may serve to counteract an excessive delivery of FFA to the fetus in conditions where maternal TG levels are markedly increased.
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Affiliation(s)
- Anne Liese Magnusson-Olsson
- Perinatal Center, Institute of Neuroscience and Physiology, Göteborg University, Box 432, S-405 30 Gothenburg, Sweden.
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Magnusson-Olsson AL, Hamark B, Ericsson A, Wennergren M, Jansson T, Powell TL. Gestational and hormonal regulation of human placental lipoprotein lipase. J Lipid Res 2006; 47:2551-61. [PMID: 16926441 DOI: 10.1194/jlr.m600098-jlr200] [Citation(s) in RCA: 62] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The fetal demand for FFA increases as gestation proceeds, and LPL represents one potential mechanism for increasing placental lipid transport. We examined LPL activity and protein expression in first trimester and term human placenta. The LPL activity was 3-fold higher in term (n = 7; P < 0.05) compared with first trimester (n = 6) placentas. The LPL expression appeared lower in microvillous membrane from first trimester (n = 2) compared with term (n = 2) placentas. We incubated isolated placental villous fragments with a variety of effectors [GW 1929, estradiol, insulin, cortisol, epinephrine, insulin-like growth factor-1 (IGF-1), and tumor necrosis factor-alpha] for 1, 3, and 24 h to investigate potential regulatory mechanisms. Decreased LPL activity was observed after 24 h of incubation with estradiol (1 micro g/ml), insulin, cortisol, and IGF-1 (n = 12; P < 0.05). We observed an increase in LPL activity after 3 h of incubation with estradiol (20 ng/ml) or hyperglycemic medium plus insulin (n = 7; P < 0.05). To conclude, we suggest that the gestational increase in placental LPL activity represents an important mechanism to enhance placental FFA transport in late pregnancy. Hormonal regulation of placental LPL activity by insulin, cortisol, IGF-1, and estradiol may be involved in gestational changes and in alterations in LPL activity in pregnancies complicated by altered fetal growth.
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Affiliation(s)
- A L Magnusson-Olsson
- Perinatal Center, Institute of Neuroscience and Physiology, Göteborg University, Göteborg, Sweden.
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Ustün Y, Engin-Ustün Y, Dökmeci F, Söylemez F. Serum concentrations of lipids and apolipoproteins in normal and hyperemetic pregnancies. J Matern Fetal Neonatal Med 2004; 15:287-90. [PMID: 15280117 DOI: 10.1080/14767050410001680028] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
OBJECTIVE Hyperemesis gravidarum (HEG) is intractable nausea and vomiting. The purpose of this study was to test the hypothesis that women with HEG have lower cholesterol and triglyceride levels, to find any role in the etiology of reduced risk of spontaneous abortion in hyperemetic patients. STUDY DESIGN The study group consisted of 39 women with normal ongoing pregnancy and 35 women with HEG. The concentrations of triglycerides, high-density lipoprotein (HDL) cholesterol, low-density lipoprotein (LDL) cholesterol, total cholesterol and apolipoprotein (apo)-A and -B were analyzed. The independent-samples t test, Mann-Whitney U test, chi2 test, Kruskal-Wallis variance analysis and Spearman's correlation were used to examine differences between groups. RESULTS Serum HDL cholesterol, LDL cholesterol and total cholesterol, apo-A and apo-B were higher in normal pregnancies compared with hyperemetic pregnancies. There were no significant differences in apo-B/apo-A, HDL cholesterol/apo-A and total cholesterol/HDL cholesterol ratios between the hyperemetic patients and controls. A negative correlation was found between total cholesterol and serum thyroxine level. CONCLUSION We found decreased levels of total cholesterol, LDL cholesterol, apo-A and apo-B in hyperemetic patients and the same spontaneous abortion rate in the two groups in our study.
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Affiliation(s)
- Y Ustün
- Department of Obstetrics and Gynecology, Ankara University Faculty of Medicine, Ankara, Turkey
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Martínez-Morales S, Bonillo-Perales A, Muñoz-Hoyos A, Puertas-Prieto A, Uberos-Fernández J, Molina-Carballo A, Bonillo-Perales JC, Sabatel-López R. The influence of maternal erythrocyte deformability on fetal growth, gestational age and birthweight. J Perinat Med 1999; 27:166-72. [PMID: 10503176 DOI: 10.1515/jpm.1999.022] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
The increase in blood viscosity during pregnancy reduces maternal-fetal blood flow, which can lead to fetal hypoxia and acidosis. These factors have been related to a reduction in fetal growth and to premature births. We carried out a longitudinal study of 36 normal-term gestations at different stages of the pregnancy. We analyzed the erythocyte deformability, the intraerythocyte viscosity and the plasma viscosity in the mother, as well as the relation of these parameters to fetal growth (biparietral diameter (BPD) and length of the femur), birthweight, gestational age at birth and the Agpar score. The results obtained were as follows: from weeks 25 to 36 of pregnancy (30.9 (SD 2 weeks)) there occurs a significant increase in maternal erythocyte rigidity (p < 0.05) (despite the compensatory decrease in intracellular viscosity). This increase is very significantly related to the fetal biparietral diameter (r = -0.50, p < 0.01), the length of the fetal femur (r = -0.48, p < 0.02), gestational age at birth (r = -0.73, p < 0.0001, birthweight (r = -0.63, p < 0.001) and the Agpar score 5 minutes after birth (r = 0.67, p < 0.001). Our conclusions are that the reduction in erythocyte deformability (which we attribute to alterations in the fluidity or elasticity of its membrane) and the factors that increase the aggregation capacity of the red cells (modulators of blood viscosity and of blood flow in the placental intervillous space) are risk factors for reduced fetal growth, lower birthweight and lower gestational age at birth. By avoiding maternal hematocrit levels higher than 36% we could improve uteroplacental perfusion, fetal growth and perinatal results.
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Affiliation(s)
- S Martínez-Morales
- Department of Obstetrics and Gynecology, Hospital de Poniente, Almería, Spain
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Schumacher M, Weigert S, Wood WG. Do gonadotropins influence serum lipoprotein(a) concentrations? Observations on children, adolescents and adults. EUROPEAN JOURNAL OF CLINICAL CHEMISTRY AND CLINICAL BIOCHEMISTRY : JOURNAL OF THE FORUM OF EUROPEAN CLINICAL CHEMISTRY SOCIETIES 1996; 34:909-14. [PMID: 8960465 DOI: 10.1515/cclm.1996.34.11.909] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Data from 7045 subjects were examined. The main groups consisted of the following in- and outpatients: 1414 neonates, 2554 children and adolescents (1336 males, 1218 females), 1209 women directly postpartum, 786 non-pregnant women and 1090 men aged between 18 and 100 years of age. Unless otherwise stated, persons were under medical observation or therapy. The results were obtained over a three-year period using an in-house immunoluminometric assay specific for apolipoprotein(a) using two polyclonal antibodies and single lot of reagents to allow for comparability of results. Girls aged between 10 and 12 years of age had significantly higher serum lipoprotein(a) (median 124 mg/l) levels than boys (median 88 mg/l) of the same age (p < 0.05-Mann-Whitney U-test). Post-pubertal lipoprotein(a) concentrations were not significantly different from pre-pubertal levels. Between the ages of 0-9 and 13-17 years there were no statistically significant sex-linked differences in serum lipoprotein(a). In adults, lipoprotein(a) serum levels were significantly higher in women (median 163 mg/l) aged between 50 and 59 years, when compared with men (median 128 mg/l) of the same age group (p = 0.05-Kruskal-Wallis one way ANOVA followed by the Nemenyi test). There was no significant difference in serum lipoprotein(a) concentrations between healthy women (median 91 mg/l), women direct postpartum (median 116 mg/l) and in-patient women (median 117 mg/l) aged between 18 and 41 years of age (p = 0.11-0.96). There was no correlation between maternal lipoprotein(a) and birth weight in mature newborns (r = -0.028-0.085). The results may indicate a direct influence of gonadotropins at puberty and during the menopause which cause an increase in serum lipoprotein(a) concentrations.
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Affiliation(s)
- M Schumacher
- Institut für Klinische Laboratoriumsdiagnostik, Klinikum der Hansestadt Stralsund GmbH, Stralsund, Germany
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Uberos-Fernández J, Muñoz-Hoyos A, Molina-Carballo A, Puertas-Prieto A, Valenzuela-Ruiz A, Ruiz-Cosano C, Molina-Font JA. Lipoproteins in pregnant women before and during delivery: influence on neonatal haemorheology. J Clin Pathol 1996; 49:120-3. [PMID: 8655676 PMCID: PMC500343 DOI: 10.1136/jcp.49.2.120] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
AIMS To investigate whether the lipid profile of pregnant women during parturition differs from the profile at previous stages of pregnancy and to determine the effects of maternal lipid changes on fetal or neonatal haemorheology. METHODS Sixty pregnant women were studied, divided into two groups. Group 1 contained 30 women of mean age of 27 (SD 3) years and gestational age > 38 weeks in whom delivery had not yet begun; all these pregnancies followed an uncomplicated course and there was no evidence of any fetal pathology from previous obstetric examinations. All the women reached term and birth weight was 3340 (350) g. Group 2 contained women of mean age 26 (4) years, in whom delivery was ongoing, all of whose pregnancies reached term. The following variables were determined in all cases: total cholesterol, triglycerides, high density lipoproteins (HDL), low density lipoproteins (LDL), free fatty acids and phospholipids, and apoprotein A (apo-A) and apoprotein B (apo-B). Serum and plasma viscosity was measured with a capillary viscosimeter. RESULTS The apo-B/apo-A and HDL/apo-A ratios increased during delivery, indicating that in pregnant women these atherogenic indices are raised during delivery compared with previous gestational stages. Significant correlation coefficients were obtained between maternal lipids (triglycerides, total cholesterol, LDL, total cholesterol/HDL, and LDL/HDL) and plasma viscosity in the neonate. CONCLUSIONS Plasma atherogenic indices increase progressively until birth. These changes have implications for neonatal haemorheology because they cause an increase in plasma viscosity.
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