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Association of serum leptin at 24-28 weeks gestation with initiation and progression of labor in women. Sci Rep 2022; 12:16016. [PMID: 36163455 PMCID: PMC9512924 DOI: 10.1038/s41598-022-19868-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Accepted: 09/06/2022] [Indexed: 11/28/2022] Open
Abstract
Concentrations of the hormone leptin, which is produced by adipose tissue, increase with increasing BMI, whereas leptin sensitivity often declines with higher BMI. Thus, altered leptin signaling may play a role in reproductive health risks observed with increasing BMI, which include later onset and slow progression of labor. Conflicting evidence from clinical, animal and in vitro studies have suggested that leptin either promotes or inhibits labor. We hypothesized that serum leptin concentrations or serum leptin: body mass index (BMI) ratios in women may be associated with the initiation and progression of labor. Following informed consent, serum samples were collected from 90 women with singleton pregnancies at the time of routine glucose-challenge testing, for measurement of leptin. The potential influence of leptin on gestation length and cervical dilation timing were examined by multiple linear regression. Data were analyzed from 63 participants who met exclusion and inclusion criteria. Leptin concentrations (log-transformed) at 24–28 weeks gestation were not significantly correlated with first trimester BMI . Log serum leptin and leptin: BMI ratio each were significantly associated with shorter total gestation length in uncomplicated, term pregnancies. In contrast, the mid-pregnancy leptin concentrations were not associated with progression of labor, assessed by cervical dilation over time. The association between higher serum leptin and shorter gestation length is consistent with the hypothesis that leptin promotes, or is permissive for, the onset of labor.
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Wendremaire M, Lopez TE, Barrichon M, Zhang H, Hadi T, Ye XY, Neiers F, Bardou M, Sagot P, Garrido C, Lirussi F. Leptin-Induced HLA-G Inhibits Myometrial Contraction and Differentiation. Cells 2022; 11:cells11060954. [PMID: 35326405 PMCID: PMC8946078 DOI: 10.3390/cells11060954] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Revised: 03/04/2022] [Accepted: 03/07/2022] [Indexed: 11/22/2022] Open
Abstract
Maternal obesity is associated with a wide spectrum of labour disorders, including preterm birth. Leptin, a pro-inflammatory adipokine and a key factor of obesity, is suspected to play a major role in these disorders. OB-R, its receptor, is expressed on macrophages and myocytes, two cell types critical for labour onset. Macrophages secrete reactive oxygen species/pro-inflammatory cytokines, responsible for myometrial differentiation while myocytes control uterine contractions. In this study, we assessed the effect of leptin on myometrial contraction and differentiation using our validated co-culture model of human primary macrophages and myocytes. We demonstrated that leptin had a different effect on myocytes and macrophages depending on the dose. A low leptin concentration induced a tocolytic effect by preventing myocytes’ contraction, differentiation, and macrophage-induced ROS production. Additionally, leptin led to an increase in HLA-G expression, suggesting that the tocolytic effect of leptin may be driven by HLA-G, a tolerogenic molecule. Finally, we observed that recombinant HLA-G also prevented LPS-induced ROS production by macrophages. Altogether, these data provide a putative molecular mechanism by which leptin may induce immune tolerance and therefore interfere with labour-associated mechanisms. Therefore, HLA-G represents a potential innovative therapeutic target in the pharmacological management of preterm labour.
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Affiliation(s)
- Maeva Wendremaire
- UMR 1231, Lipides Nutrition Cancer, INSERM, F-21000 Dijon, France; (M.W.); (T.E.L.); (M.B.); (H.Z.); (T.H.); (C.G.)
- UFR des Sciences de Santé, Université Bourgogne Franche-Comté, F-25000 Besançon, France; (F.N.); (M.B.)
| | - Tatiana E. Lopez
- UMR 1231, Lipides Nutrition Cancer, INSERM, F-21000 Dijon, France; (M.W.); (T.E.L.); (M.B.); (H.Z.); (T.H.); (C.G.)
- UFR des Sciences de Santé, Université Bourgogne Franche-Comté, F-25000 Besançon, France; (F.N.); (M.B.)
| | - Marina Barrichon
- UMR 1231, Lipides Nutrition Cancer, INSERM, F-21000 Dijon, France; (M.W.); (T.E.L.); (M.B.); (H.Z.); (T.H.); (C.G.)
- UFR des Sciences de Santé, Université Bourgogne Franche-Comté, F-25000 Besançon, France; (F.N.); (M.B.)
| | - Hang Zhang
- UMR 1231, Lipides Nutrition Cancer, INSERM, F-21000 Dijon, France; (M.W.); (T.E.L.); (M.B.); (H.Z.); (T.H.); (C.G.)
- UFR des Sciences de Santé, Université Bourgogne Franche-Comté, F-25000 Besançon, France; (F.N.); (M.B.)
- School of Basic Medical Science, Hangzhou Normal University, Hangzhou 311121, China
| | - Tarik Hadi
- UMR 1231, Lipides Nutrition Cancer, INSERM, F-21000 Dijon, France; (M.W.); (T.E.L.); (M.B.); (H.Z.); (T.H.); (C.G.)
- UFR des Sciences de Santé, Université Bourgogne Franche-Comté, F-25000 Besançon, France; (F.N.); (M.B.)
| | - Xiang-Yang Ye
- School of Pharmacy, Hangzhou Normal University, Hangzhou 311121, China;
| | - Fabrice Neiers
- UFR des Sciences de Santé, Université Bourgogne Franche-Comté, F-25000 Besançon, France; (F.N.); (M.B.)
- Centre des Sciences du Goût et de l’Alimentation, INRAE, CNRS, Université Bourgogne Franche-Comté, F-21000 Dijon, France
| | - Marc Bardou
- UFR des Sciences de Santé, Université Bourgogne Franche-Comté, F-25000 Besançon, France; (F.N.); (M.B.)
- CIC 1432, INSERM, Université de Bourgogne Franche-Comté, F-21000 Dijon, France
| | - Paul Sagot
- Service de Gynécologie-Obstétrique, Centre Hospitalo-Universitaire Dijon, F-21000 Dijon, France;
| | - Carmen Garrido
- UMR 1231, Lipides Nutrition Cancer, INSERM, F-21000 Dijon, France; (M.W.); (T.E.L.); (M.B.); (H.Z.); (T.H.); (C.G.)
- UFR des Sciences de Santé, Université Bourgogne Franche-Comté, F-25000 Besançon, France; (F.N.); (M.B.)
- Department of Medical Oncology, Centre Georges François Leclerc, F-21000 Dijon, France
| | - Frédéric Lirussi
- UMR 1231, Lipides Nutrition Cancer, INSERM, F-21000 Dijon, France; (M.W.); (T.E.L.); (M.B.); (H.Z.); (T.H.); (C.G.)
- UFR des Sciences de Santé, Université Bourgogne Franche-Comté, F-25000 Besançon, France; (F.N.); (M.B.)
- Plateforme PACE, Laboratoire de Pharmacologie-Toxicologie, Centre Hospitalo-Universitaire Besançon, F-25000 Besançon, France
- Correspondence:
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Cowman W, Scroggins SM, Hamilton WS, Karras AE, Bowdler NC, Devor EJ, Santillan MK, Santillan DA. Association between plasma leptin and cesarean section after induction of labor: a case control study. BMC Pregnancy Childbirth 2022; 22:29. [PMID: 35031012 PMCID: PMC8759283 DOI: 10.1186/s12884-021-04372-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Accepted: 12/30/2021] [Indexed: 11/17/2022] Open
Abstract
Background Obesity in pregnancy is common, with more than 50% of pregnant women being overweight or obese. Obesity has been identified as an independent predictor of dysfunctional labor and is associated with increased risk of failed induction of labor resulting in cesarean section. Leptin, an adipokine, is secreted from adipose tissue under the control of the obesity gene. Concentrations of leptin increase with increasing percent body fat due to elevated leptin production from the adipose tissue of obese individuals. Interestingly, the placenta is also a major source of leptin production during pregnancy. Leptin has regulatory effects on neuronal tissue, vascular smooth muscle, and nonvascular smooth muscle systems. It has also been demonstrated that leptin has an inhibitory effect on myometrial contractility with both intensity and frequency of contractions decreased. These findings suggest that leptin may play an important role in dysfunctional labor and be associated with the outcome of induction of labor at term. Our aim is to determine whether maternal plasma leptin concentration is indicative of the outcome of induction of labor at term. We hypothesize that elevated maternal plasma leptin levels are associated with a failed term induction of labor resulting in a cesarean delivery. Methods In this case-control study, leptin was measured in 3rd trimester plasma samples. To analyze labor outcomes, 174 women were selected based on having undergone an induction of labor (IOL), (115 women with successful IOL and 59 women with a failed IOL). Plasma samples and clinical information were obtained from the UI Maternal Fetal Tissue Bank (IRB# 200910784). Maternal plasma leptin and total protein concentrations were measured using commercially available assays. Bivariate analyses and logistic regression models were constructed using regression identified clinically significant confounding variables. All variables were tested at significance level of 0.05. Results Women with failed IOL had higher maternal plasma leptin values (0.5 vs 0.3 pg, P = 0.01). These women were more likely to have obesity (mean BMI 32 vs 27 kg/m2, P = 0.0002) as well as require multiple induction methods (93% vs 73%, p = 0.008). Logistic regression showed Bishop score (OR 1.5, p < 0.001), BMI (OR 0.92, P < 0.001), preeclampsia (OR 0.12, P = 0.010), use of multiple methods of induction (OR 0.22, P = 0.008) and leptin (OR 0.42, P = 0.017) were significantly associated with IOL outcome. Specifically, after controlling for BMI, Bishop Score, and preeclampsia, leptin was still predictive of a failed IOL with an odds ratio of 0.47 (P = 0.046). Finally, using leptin as a predictor for fetal outcomes, leptin was also associated with of fetal intolerance of labor, with an odds ratio of 2.3 (P = 0.027). This association remained but failed to meet statistical significance when controlling for successful (IOL) (OR 1.5, P = 0.50). Conclusions Maternal plasma leptin may be a useful tool for determining which women are likely to have a failed induction of labor and for counseling women about undertaking an induction of labor versus proceeding with cesarean delivery.
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Affiliation(s)
- Whitney Cowman
- Department of Obstetrics & Gynecology, University of Iowa Hospitals & Clinics, 200 Hawkins Drive, 463 MRF, Iowa City, IA, 52242, USA.,Present Address: Department of Obstetrics & Gynecology, Iowa Methodist Medical Center, 1200 Pleasant Street, Des Moines, IA, 50309, USA
| | - Sabrina M Scroggins
- Department of Obstetrics & Gynecology, University of Iowa Hospitals & Clinics, 200 Hawkins Drive, 463 MRF, Iowa City, IA, 52242, USA
| | - Wendy S Hamilton
- Department of Obstetrics & Gynecology, University of Iowa Hospitals & Clinics, 200 Hawkins Drive, 463 MRF, Iowa City, IA, 52242, USA
| | - Alexandra E Karras
- Department of Obstetrics & Gynecology, University of Iowa Hospitals & Clinics, 200 Hawkins Drive, 463 MRF, Iowa City, IA, 52242, USA
| | - Noelle C Bowdler
- Department of Obstetrics & Gynecology, University of Iowa Hospitals & Clinics, 200 Hawkins Drive, 463 MRF, Iowa City, IA, 52242, USA
| | - Eric J Devor
- Department of Obstetrics & Gynecology, University of Iowa Hospitals & Clinics, 200 Hawkins Drive, 463 MRF, Iowa City, IA, 52242, USA
| | - Mark K Santillan
- Department of Obstetrics & Gynecology, University of Iowa Hospitals & Clinics, 200 Hawkins Drive, 463 MRF, Iowa City, IA, 52242, USA
| | - Donna A Santillan
- Department of Obstetrics & Gynecology, University of Iowa Hospitals & Clinics, 200 Hawkins Drive, 463 MRF, Iowa City, IA, 52242, USA.
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Sunarno I, Riu DS, Mappaware NA. Factors associated with and mode of delivery in prelabour rupture of membrane at secondary health care. GACETA SANITARIA 2021; 35 Suppl 2:S498-S500. [PMID: 34929885 DOI: 10.1016/j.gaceta.2021.07.028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Accepted: 07/30/2021] [Indexed: 11/19/2022]
Abstract
OBJECTIVE The study aimed to explore factors associated with prelabor rupture of membrane (PROM) and mode of delivery of PROM at secondary health care. METHODS It was a retrospective case-control study within a year observational period. Data were collected from medical records at St. Khadijah I Mother and Child Hospital Makassar. RESULTS There were 4003 samples with 259 cases with PROM. Parity and body mass index (BMI) were factors associated with PROM with p=0.000 and .032 consecutively; among them, BMI was more prominent than parity with OR=2.392, and 95% CI=1.052-5.442. Cesarean section is not associated with PROM, p=.000. CONCLUSION Primigravidae and obesity were factors associated with PROM, and BMI was more strongly associated with PROM than parity. PROM is not an indication for cesarean section.
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Affiliation(s)
- Isharyah Sunarno
- Department of Obstetrics & Gynecology, Faculty of Medicine, Hasanuddin University, Indonesia.
| | - Deviana Soraya Riu
- Department of Obstetrics & Gynecology, Faculty of Medicine, Hasanuddin University, Indonesia
| | - Nasrudin Andi Mappaware
- Department of Obstetrics & Gynecology, Faculty of Medicine, Hasanuddin University, Indonesia
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Naghizadeh M, Karajibani M, Fanaei H, Montazerifar F, Dashipour A. Effect of synbiotic supplementation on asprosin level in high fat diet-induced metabolic disorder in pregnant rats. MEDITERRANEAN JOURNAL OF NUTRITION AND METABOLISM 2021. [DOI: 10.3233/mnm-210595] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Synbiotic supplementation can improve metabolic disorders. The aim of this study was to assess the impact of synbiotic supplementation on the levels of asprosin, lipid profile, glucose, and insulin resistance in pregnant rats fed a high-fat diet (HFD). Rats were divided into three groups: control group (fed base chow), HFD group, and HFD + synbiotic group. Levels of blood glucose, total cholesterol, triglyceride (TG), low-density lipoprotein (LDL), high-density lipoprotein (HDL), insulin, and asprosin levels were measured. Birth weight of offspring in the HFD + synbiotic group was significantly lower than in the HFD group. Similarly, serum asprosin, insulin, insulin resistance, TG and total cholesterol levels in the HFD + symbiotic group were significantly lower than in the HFD group. Asprosin levels had a significant and positive correlation between food intake in the first ten days of the experiment and gestation period, fasting blood sugar (FBS), TG, and homeostatic model assessment (HOMA) index. Moreover, asprosin levels had a significant and negative correlation with HDL and insulin levels. Results showed, synbiotic supplementation has beneficial effects on obese animals and improves weight gain during pregnancy, pup birth weight, FBS, insulin resistance and lipid profile. These advantages of synbiotic supplementation could be mediated by reducing serum asprosin levels.
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Affiliation(s)
- Mehrdad Naghizadeh
- Department of Nutrition, School of Medicine, Zahedan University of Medical Sciences, Zahedan, Iran
| | - Mansour Karajibani
- Department of Nutrition, School of Medicine, Zahedan University of Medical Sciences, Zahedan, Iran
- Health Promotion Research Center, School of Medicine, Zahedan University of Medical Sciences, Zahedan, Iran
| | - Hamed Fanaei
- Pregnancy Health Research Center, Zahedan University of Medical Sciences, Zahedan, Iran
- Department of Physiology, School of Medicine, Zahedan University of Medical Sciences, Zahedan, Iran
| | - Farzaneh Montazerifar
- Health Promotion Research Center, School of Medicine, Zahedan University of Medical Sciences, Zahedan, Iran
- Pregnancy Health Research Center, Zahedan University of Medical Sciences, Zahedan, Iran
| | - Alireza Dashipour
- Department of Food Science, School of medicine, Zahedan University of Medical Sciences, Zahedan, Iran
- Cellular and Molecular Research Center, Zahedan University of Medical Sciences, Zahedan, Iran
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Yay A, Onder GO, Ozdamar S, Bahadir A, Aytekin M, Baran M. The Effects of Leptin on Rat Brain Development; An Experimental Study. Int J Pept Res Ther 2019. [DOI: 10.1007/s10989-018-09803-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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Tanaka K, Muraoka Y, Honda R, Izawa T, Tanigaki S, Kobayashi Y, Iwashita M. Significance of gestational weight gain in spontaneous onset of labor at term. J Obstet Gynaecol Res 2018; 44:1915-1921. [PMID: 30015398 DOI: 10.1111/jog.13750] [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: 04/02/2018] [Accepted: 06/17/2018] [Indexed: 11/29/2022]
Abstract
AIM To investigate the significance of gestational weight gain (GWG) in association with the spontaneous onset of labor at term. METHODS A retrospective cohort study on 985 pregnant women (629 nullipara and 356 pluripara) who delivered singleton babies at term was conducted. We reviewed the maternal demographics (age, parity, prepregnancy body mass index [BMI]) and the perinatal outcomes (gestational age [GA] and the type [spontaneous or induced] of labor onset, and GWG). The subjects were categorized by prepregnancy BMI and GWG. The rates of spontaneous onset of labor were compared between the nullipara and pluripara groups. Kaplan-Meier survival analysis was applied to evaluate the time to spontaneous labor according to prepregnancy BMI and GWG. A Cox proportional hazards model was used to determine the independent predictive factor for spontaneous onset of labor. RESULTS In both the nullipara and pluripara group, women with prepregnancy obesity were less likely to enter spontaneous labor. In nullipara, women with excessive weight gain were less likely to enter spontaneous labor. In pluripara, women with poor gain were more likely to enter spontaneous labor. In the multivariate model, GWG was independently associated with the spontaneous onset of labor in both nullipara (hazard ratio [HR] 0.83, 95% confidence interval [CI] 0.75-0.98, P = 0.03) and pluripara (HR 0.82, 95% CI 0.64-0.93, P = 0.005). CONCLUSION Greater maternal weight gain was significantly associated with longer gestation and a decreased likelihood of spontaneous onset of labor at term.
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Affiliation(s)
- Kei Tanaka
- Department of Obstetrics and Gynecology, Kyorin University School of Medicine, Tokyo, Japan
| | - Yuma Muraoka
- Department of Obstetrics and Gynecology, Kyorin University School of Medicine, Tokyo, Japan
| | - Riku Honda
- Department of Obstetrics and Gynecology, Kyorin University School of Medicine, Tokyo, Japan
| | - Tomoko Izawa
- Department of Obstetrics and Gynecology, Kyorin University School of Medicine, Tokyo, Japan
| | - Shinji Tanigaki
- Department of Obstetrics and Gynecology, Kyorin University School of Medicine, Tokyo, Japan
| | - Yoichi Kobayashi
- Department of Obstetrics and Gynecology, Kyorin University School of Medicine, Tokyo, Japan
| | - Mitsutoshi Iwashita
- Department of Obstetrics and Gynecology, Kyorin University School of Medicine, Tokyo, Japan
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Carlhäll S, Källén K, Thorsell A, Blomberg M. Maternal plasma leptin levels in relation to the duration of the active phase of labor. Acta Obstet Gynecol Scand 2018; 97:1248-1256. [PMID: 29772056 DOI: 10.1111/aogs.13380] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2018] [Accepted: 05/09/2018] [Indexed: 12/21/2022]
Abstract
INTRODUCTION Obese women have increased leptin levels and longer duration of labor compared with normal-weight women. Leptin has an inhibitory effect on myometrial contractility in vitro. Our purpose was to examine whether maternal leptin levels in active labor were associated with the duration of the active phase of labor. MATERIAL AND METHODS This prospective cohort study included 914 women. Maternal blood samples were collected in active labor. The plasma-leptin concentration was obtained using a direct sandwich-based ELISA. Bivariate and multiple linear regression analyses were used to study the association between leptin levels and the duration of labor. RESULTS A 1 ng/mL increase in maternal plasma leptin was associated with a 0.015 hour increase in duration of labor (P < .007). This association was not statistically significant in the adjusted analyses nor when analyzing nulliparous and multiparous women separately. In women with spontaneous labor (n = 766) leptin levels were not associated with an increase in duration of labor in the adjusted analyses. CONCLUSIONS There was no significant association between leptin levels and duration of the active phase of labor. Leptin in vivo might display a similar dose-response effect on myometrial contractility as demonstrated in in vitro studies. Future studies need to explore the association between leptin levels and time in labor in obese women with high leptin levels to evaluate a possible dose-response effect.
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Affiliation(s)
- Sara Carlhäll
- Department of Obstetrics and Gynecology and Department of Clinical and Experimental Medicine, Linköping University, Linköping, Sweden
| | - Karin Källén
- Institution of Clinical Sciences Lund, Center for Reproductive Epidemiology, Tornblad Institute, Lund University, Lund, Sweden
| | - Annika Thorsell
- Center for Social and Affective Neuroscience, Department of Clinical and Experimental Medicine, Faculty of Health Sciences, Linköping University, Linköping, Sweden
| | - Marie Blomberg
- Department of Obstetrics and Gynecology and Department of Clinical and Experimental Medicine, Linköping University, Linköping, Sweden
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O’Brien CM, Vargis E, Rudin A, Slaughter JC, Thomas G, Newton JM, Reese J, Bennett KA, Mahadevan-Jansen A. In vivo Raman spectroscopy for biochemical monitoring of the human cervix throughout pregnancy. Am J Obstet Gynecol 2018; 218:528.e1-528.e18. [PMID: 29410109 DOI: 10.1016/j.ajog.2018.01.030] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2017] [Revised: 01/11/2018] [Accepted: 01/23/2018] [Indexed: 12/22/2022]
Abstract
BACKGROUND The cervix must undergo significant biochemical remodeling to allow for successful parturition. This process is not fully understood, especially in instances of spontaneous preterm birth. In vivo Raman spectroscopy is an optical technique that can be used to investigate the biochemical composition of tissue longitudinally and noninvasively in human beings, and has been utilized to measure physiology and disease states in a variety of medical applications. OBJECTIVE The purpose of this study is to measure in vivo Raman spectra of the cervix throughout pregnancy in women, and to identify biochemical markers that change with the preparation for delivery and postpartum repair. STUDY DESIGN In all, 68 healthy pregnant women were recruited. Raman spectra were measured from the cervix of each patient monthly in the first and second trimesters, weekly in the third trimester, and at the 6-week postpartum visit. Raman spectra were measured using an in vivo Raman system with an optical fiber probe to excite the tissue with 785 nm light. A spectral model was developed to highlight spectral regions that undergo the most changes throughout pregnancy, which were subsequently used for identifying Raman peaks for further analysis. These peaks were analyzed longitudinally to determine if they underwent significant changes over the course of pregnancy (P < .05). Finally, 6 individual components that comprise key biochemical constituents of the human cervix were measured to extract their contributions in spectral changes throughout pregnancy using a linear combination method. Patient factors including body mass index and parity were included as variables in these analyses. RESULTS Raman peaks indicative of extracellular matrix proteins (1248 and 1254 cm-1) significantly decreased (P < .05), while peaks corresponding to blood (1233 and 1563 cm-1) significantly increased (P < .0005) in a linear manner throughout pregnancy. In the postpartum cervix, significant increases in peaks corresponding to actin (1003, 1339, and 1657 cm-1) and cholesterol (1447 cm-1) were observed when compared to late gestation, while signatures from blood significantly decreased. Postpartum actin signals were significantly higher than early pregnancy, whereas extracellular matrix proteins and water signals were significantly lower than early weeks of gestation. Parity had a significant effect on blood and extracellular matrix protein signals, with nulliparous patients having significant increases in blood signals throughout pregnancy, and higher extracellular matrix protein signals in early pregnancy compared to patients with prior pregnancies. Body mass index significantly affected actin signal contribution, with low body mass index patients showing decreasing actin contribution throughout pregnancy and high body mass index patients demonstrating increasing actin signals. CONCLUSION Raman spectroscopy was successfully used to biochemically monitor cervical remodeling in pregnant women during prenatal visits. This foundational study has demonstrated sensitivity to known biochemical dynamics that occur during cervical remodeling, and identified patient variables that have significant effects on Raman spectra throughout pregnancy. Raman spectroscopy has the potential to improve our understanding of cervical maturation, and be used as a noninvasive preterm birth risk assessment tool to reduce the incidence, morbidity, and mortality caused by preterm birth.
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Carlson NS, Hernandez TL, Hurt KJ. Parturition dysfunction in obesity: time to target the pathobiology. Reprod Biol Endocrinol 2015; 13:135. [PMID: 26684329 PMCID: PMC4683915 DOI: 10.1186/s12958-015-0129-6] [Citation(s) in RCA: 75] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/07/2015] [Accepted: 11/24/2015] [Indexed: 12/23/2022] Open
Abstract
Over a third of women of childbearing age in the United States are obese, and during pregnancy they are at increased risk for delayed labor onset and slow labor progress that often results in unplanned cesarean delivery. The biology behind this dysfunctional parturition is not well understood. Studies of obesity-induced changes in parturition physiology may facilitate approaches to optimize labor in obese women. In this review, we summarize known and proposed biologic effects of obesity on labor preparation, contraction/synchronization, and endurance, drawing on both clinical observation and experimental data. We present evidence from human and animal studies of interactions between obesity and parturition signaling in all elements of the birth process, including: delayed cervical ripening, prostaglandin insensitivity, amniotic membrane strengthening, decreased myometrial oxytocin receptor expression, decreased myocyte action potential initiation and contractility, decreased myocyte gap junction formation, and impaired myocyte neutralization of reactive oxygen species. We found convincing clinical data on the effect of obesity on labor initiation and successful delivery, but few studies on the underlying pathobiology. We suggest research opportunities and therapeutic interventions based on plausible biologic mechanisms.
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Affiliation(s)
- Nicole S Carlson
- Emory University, Nell Hodgson Woodruff School of Nursing, 1520 Clifton Road NE, Atlanta, GA, 30322, USA.
| | - Teri L Hernandez
- Department of Medicine, Division of Endocrinology, Metabolism, & Diabetes, College of Nursing, University of Colorado School of Medicine, 12801 E. 17th Ave, MS 8106, Aurora, CO, 80045, USA.
| | - K Joseph Hurt
- Department of Obstetrics & Gynecology, Divisions of Maternal-Fetal Medicine & Reproductive Sciences, University of Colorado School of Medicine, 12700 East 19th Ave, MS 8613, Aurora, CO, 80045, USA.
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Barrichon M, Hadi T, Wendremaire M, Ptasinski C, Seigneuric R, Marcion G, Delignette M, Marchet J, Dumas M, Sagot P, Bardou M, Garrido C, Lirussi F. Dose-dependent biphasic leptin-induced proliferation is caused by non-specific IL-6/NF-κB pathway activation in human myometrial cells. Br J Pharmacol 2015; 172:2974-90. [PMID: 25653112 DOI: 10.1111/bph.13100] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2014] [Revised: 12/15/2014] [Accepted: 01/25/2015] [Indexed: 01/04/2023] Open
Abstract
BACKGROUND AND PURPOSE Leptin, an adipokine synthesized by the placenta during pregnancy, has been proposed for the management of preterm labour (PTL), as it is able to prevent in vitro uterine contractility and remodelling associated with labour onset. Another common feature of labour onset is the phenotypic switch of myometrial smooth muscle cells from a proliferative to a hypertrophic state. As proliferative effects have been demonstrated for leptin in other tissues, we aimed to investigate its ability to induce myometrial proliferation and thus to maintain uterine quiescence. EXPERIMENTAL APPROACH We stimulated human primary myometrial smooth muscle cells with leptin in the presence or absence of receptor antagonists or signalling pathway inhibitors. KEY RESULTS Leptin induced myometrial cell proliferation in a biphasic manner. At 6.25 ng · mL(-1), leptin-induced proliferation was mediated by the leptin receptor and required the early activation of ERK1/2. At a concentration above 25 ng · mL(-1), leptin induced direct non-specific stimulation of the IL-6 receptor, leading to NF-κB activation, and exerted anti-proliferative effects. However, at 50 ng · mL(-1), leptin re-induces proliferation via IL-6 receptor stimulation that requires STAT3 and delayed ERK1/2 activation. CONCLUSIONS AND IMPLICATIONS These data bring new insights into leptin signalling-induced myometrial proliferation and its interrelationship with the IL-6/IL-6 receptor axis. In the light of our previous work, the present study emphasizes the potential value of leptin in the pharmacological management of PTL and it also strengthens the hypothesis that leptin might be a contributory factor in the parturition-related disorders observed in obese women.
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Affiliation(s)
- Marina Barrichon
- INSERM, U866, Equipe labellisée ligue contre le Cancer and Association pour la Recherche contre le Cancer, and Laboratoire d'Excellence LipSTIC, Dijon, France.,Université de Bourgogne, Dijon, France
| | - Tarik Hadi
- INSERM, U866, Equipe labellisée ligue contre le Cancer and Association pour la Recherche contre le Cancer, and Laboratoire d'Excellence LipSTIC, Dijon, France.,Université de Bourgogne, Dijon, France
| | - Maeva Wendremaire
- INSERM, U866, Equipe labellisée ligue contre le Cancer and Association pour la Recherche contre le Cancer, and Laboratoire d'Excellence LipSTIC, Dijon, France.,Université de Bourgogne, Dijon, France.,Centre Hospitalier Universitaire de Dijon, Dijon, France
| | - Clémentine Ptasinski
- INSERM, U866, Equipe labellisée ligue contre le Cancer and Association pour la Recherche contre le Cancer, and Laboratoire d'Excellence LipSTIC, Dijon, France.,Université de Bourgogne, Dijon, France
| | - Renaud Seigneuric
- INSERM, U866, Equipe labellisée ligue contre le Cancer and Association pour la Recherche contre le Cancer, and Laboratoire d'Excellence LipSTIC, Dijon, France.,Université de Bourgogne, Dijon, France
| | - Guillaume Marcion
- INSERM, U866, Equipe labellisée ligue contre le Cancer and Association pour la Recherche contre le Cancer, and Laboratoire d'Excellence LipSTIC, Dijon, France.,Université de Bourgogne, Dijon, France
| | | | | | - Monique Dumas
- INSERM, U866, Equipe labellisée ligue contre le Cancer and Association pour la Recherche contre le Cancer, and Laboratoire d'Excellence LipSTIC, Dijon, France.,Université de Bourgogne, Dijon, France.,Centre Hospitalier Universitaire de Dijon, Dijon, France
| | - Paul Sagot
- Centre Hospitalier Universitaire de Dijon, Dijon, France.,Service de Gynécologie & Obstétrique, Dijon, France
| | - Marc Bardou
- INSERM, U866, Equipe labellisée ligue contre le Cancer and Association pour la Recherche contre le Cancer, and Laboratoire d'Excellence LipSTIC, Dijon, France.,Université de Bourgogne, Dijon, France.,Centre Hospitalier Universitaire de Dijon, Dijon, France.,INSERM CIC-P 803, Dijon, France
| | - Carmen Garrido
- INSERM, U866, Equipe labellisée ligue contre le Cancer and Association pour la Recherche contre le Cancer, and Laboratoire d'Excellence LipSTIC, Dijon, France.,Université de Bourgogne, Dijon, France.,Anti-cancer Center George-François Leclerc, Dijon, France
| | - Frédéric Lirussi
- INSERM, U866, Equipe labellisée ligue contre le Cancer and Association pour la Recherche contre le Cancer, and Laboratoire d'Excellence LipSTIC, Dijon, France.,Université de Bourgogne, Dijon, France.,Centre Hospitalier Universitaire de Dijon, Dijon, France
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Santangelo C, Varì R, Scazzocchio B, Filesi C, Masella R. Management of reproduction and pregnancy complications in maternal obesity: which role for dietary polyphenols? Biofactors 2014; 40:79-102. [PMID: 23983164 DOI: 10.1002/biof.1126] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/08/2013] [Revised: 06/28/2013] [Accepted: 07/02/2013] [Indexed: 02/06/2023]
Abstract
Obesity is a global and dramatic public health problem; maternal obesity represents one of the main risk factors of infertility and pregnancy complications as it is associated with adverse maternal and offspring outcomes. In the last few years, adipose tissue dysfunction associated with altered adipocytokine secretion has been suggested to play a critical role in all the phases of reproductive process. Obesity is a nutrition-related disorder. In this regard, dietary intervention strategies, such as high intake of fruit and vegetables, have shown significant effects in both preserving health and counteracting obesity-associated diseases. Evidence has been provided that polyphenols, important constituents of plant-derived food, can influence developmental program of oocyte and embryo, as well as pregnancy progression by modulating several cellular pathways. This review will examine the controversial results so far obtained on adipocytokine involvement in fertility impairment and pregnancy complications. Furthermore, the different effects exerted by polyphenols on oocyte, embryo, and pregnancy development will be also taken in account.
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Affiliation(s)
- Carmela Santangelo
- Department of Veterinary Public Health and Food Safety, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161, Rome, Italy
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Bibliography. Current world literature. Neonatology and perinatology. Curr Opin Pediatr 2013; 25:275-81. [PMID: 23481475 DOI: 10.1097/mop.0b013e32835f58ca] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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