1
|
Pietruski P, Kosińska-Kaczyńska K, Osińska A, Zgliczyńska M, Żebrowska K, Popko K, Stelmaszczyk-Emmel A. Maternal plasma angiotensin 1-7 concentration is related to twin pregnancy chorionicity in the third trimester of pregnancy. Front Endocrinol (Lausanne) 2024; 14:1329025. [PMID: 38260128 PMCID: PMC10800553 DOI: 10.3389/fendo.2023.1329025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Accepted: 12/13/2023] [Indexed: 01/24/2024] Open
Abstract
Introduction Twin gestation is related to a higher risk of hypertensive disorders in pregnancy with possible risk stratification depending on chorionicity. It may be related to differences in plasma renin-angiotensin-aldosterone components between monochorionic and dichorionic twin pregnancies. The study aimed to analyze the plasma ANG II and ANG 1-7 concentrations in women with monochorionic and dichorionic twin gestation. Methods A prospective observational study included 79 women between 32 and 34 weeks of gestation with twin pregnancy (31 with monochorionic gestation and 48 with dichorionic gestation). Angiotensin II and angiotensin 1-7 concentrations were measured in the collected blood samples. Results No significant differences were observed in angiotensin II concentrations between the dichorionic and monochorionic group with significantly higher levels of angiotensin 1-7 being observed in the dichorionic group. Angiotensin 1-7 level was higher than angiotensin II in 20 women (64.5%) in the monochorionic group and in 42 women (87.5%, p=0.01) in the dichorionic group. Higher plasma concentrations of angiotensin II and lower concentrations of angiotensin 1-7 were found in 5 women with gestational hypertension and in 3 with preeclampsia compared to normotensive women. Discussion It is the first study investigating angiotensin II and angiotensin 1-7 in twin pregnancies regarding chorionicity. Our results showed that plasma angiotensin 1-7 concentration was related to chorionicity, while plasma angiotensin II level was not. In most women with twin gestation angiotensin 1-7 concentration exceeded the concentration of angiotensin II. A switch in the relation between angiotensin II and angiotensin 1-7 was observed in hypertensive pregnant women.
Collapse
Affiliation(s)
- Paweł Pietruski
- Department of Obstetrics, Perinatology and Neonatology, Center of Postgraduate Medical Education, Warsaw, Poland
| | - Katarzyna Kosińska-Kaczyńska
- Department of Obstetrics, Perinatology and Neonatology, Center of Postgraduate Medical Education, Warsaw, Poland
| | - Agnieszka Osińska
- Department of Obstetrics, Perinatology and Neonatology, Center of Postgraduate Medical Education, Warsaw, Poland
| | - Magdalena Zgliczyńska
- Department of Obstetrics, Perinatology and Neonatology, Center of Postgraduate Medical Education, Warsaw, Poland
| | - Kinga Żebrowska
- Department of Obstetrics, Perinatology and Neonatology, Center of Postgraduate Medical Education, Warsaw, Poland
| | - Katarzyna Popko
- Department of Laboratory Diagnostics and Clinical Immunology of Developmental Age, Medical University of Warsaw, Warsaw, Poland
| | - Anna Stelmaszczyk-Emmel
- Department of Laboratory Diagnostics and Clinical Immunology of Developmental Age, Medical University of Warsaw, Warsaw, Poland
| |
Collapse
|
2
|
Stanhewicz A, Schwartz K, Lee R. Commentary on: Increased stiffness of omental arteries from late pregnant women at advanced maternal age. Biosci Rep 2023; 43:BSR20231291. [PMID: 37975423 PMCID: PMC10695740 DOI: 10.1042/bsr20231291] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 11/14/2023] [Accepted: 11/17/2023] [Indexed: 11/19/2023] Open
Abstract
Worldwide, pregnancy at age 35 or older, termed 'advanced maternal age (AMA)', is increasing exponentially. As the incidence of pregnancy at AMA has increased, a growing body of evidence has suggested that AMA is also associated with increased risk for adverse maternal and fetal outcomes outside of genetic anomalies. Importantly, despite the mounting evidence and the increased global risk of adverse perinatal outcomes observed, few studies have examined the potential mechanisms underlying this elevated risk in pregnant people ≥35 years of age. Wooldridge and colleagues begin to address this gap in the literature. In their recent report, they examine vessel stiffness in omental resistance vessels obtained from pregnant individuals ≥35 years of age compared with pregnant individuals <35 years of age. Omental arteries were isolated and assessed via pressure myography (mechanical properties) and histological analysis for collagen and elastin content. Overall, the findings from this investigation report that maternal resistance arteries collected from women of AMA were less compliant and had less elastin than arteries obtained from women <35 years of age, suggesting that maternal resistance vessel stiffening in AMA may contribute to increased risk of adverse pregnancy outcomes. The authors should be commended for completing these studies in human resistance vessels, which now open new avenues for investigation and provoke a cascade of questions related to maternal cardiovascular adaptations to pregnancy in women ≥35 years of age.
Collapse
Affiliation(s)
- Anna E. Stanhewicz
- Department of Health and Human Physiology, University of Iowa, IA, U.S.A
| | - Kelsey S. Schwartz
- Department of Health and Human Physiology, University of Iowa, IA, U.S.A
| | - Ruda Lee
- Department of Health and Human Physiology, University of Iowa, IA, U.S.A
| |
Collapse
|
3
|
Renin-angiotensin system in normal pregnancy and in preeclampsia: A comprehensive review. Pregnancy Hypertens 2022; 28:15-20. [DOI: 10.1016/j.preghy.2022.01.011] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Revised: 01/30/2022] [Accepted: 01/31/2022] [Indexed: 01/06/2023]
|
4
|
G-Protein-Coupled Estrogen Receptor Expression in Rat Uterine Artery Is Increased by Pregnancy and Induces Dilation in a Ca2+ and ERK1/2 Dependent Manner. Int J Mol Sci 2022; 23:ijms23115996. [PMID: 35682675 PMCID: PMC9180712 DOI: 10.3390/ijms23115996] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Revised: 05/23/2022] [Accepted: 05/23/2022] [Indexed: 02/04/2023] Open
Abstract
Increasing levels of estrogens across gestation are partly responsible for the physiological adaptations of the maternal vasculature to pregnancy. The G protein-coupled estrogen receptor (GPER) mediates acute vasorelaxing effects in the uterine vasculature, which may contribute to the regulation of uteroplacental blood flow. The aim of this study was to investigate whether GPER expression and vasorelaxation may occur following pregnancy. Elucidation of the functional signalling involved was also investigated. Radial uterine and third-order mesenteric arteries were isolated from non-pregnant (NP) and pregnant rats (P). GPER mRNA levels were determined and—concentration–response curve to the GPER-specific agonist, G1 (10−10–10−6 M), was assessed in arteries pre-constricted with phenylephrine. In uterine arteries, GPER mRNA expression was significantly increased and vasorelaxation to G1 was significantly enhanced in P compared with NP rats. Meanwhile, in mesenteric arteries, there was a similar order of magnitude in NP and P rats. Inhibition of L-type calcium channels and extracellular signal-regulated kinases 1/2 significantly reduced vasorelaxation triggered by G1 in uterine arteries. Increased GPER expression and GPER-mediated vasorelaxation are associated with the advancement of gestation in uterine arteries. The modulation of GPER is exclusive to uterine arteries, thus suggesting a physiological contribution of GPER toward the regulation of uteroplacental blood flow during pregnancy.
Collapse
|
5
|
Association between placental global DNA methylation and blood pressure during human pregnancy. J Hypertens 2022; 40:1002-1009. [DOI: 10.1097/hjh.0000000000003103] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
6
|
Focus on today's evidence while keeping an eye on the future: lessons derived from hypertension in women. J Hum Hypertens 2022; 36:882-886. [PMID: 35082377 DOI: 10.1038/s41371-021-00652-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Revised: 12/13/2021] [Accepted: 12/21/2021] [Indexed: 12/17/2022]
Abstract
While evidence-based medicine has contributed enormously to the uniformity and rationale of patient care, it is necessary that we anticipate changes in order to implement their rapid translation to practice. The purpose of this review is to expose three issues regarding cardiovascular health in women, including milestones to reflect the pace at which these are incorporated into public policies. Two of these matters, as changes in the thresholds of normal blood pressure in gestation and in nonpregnant women, need further evidence and deserve to be retrospectively analyzed in high-quality databases. The third subject derives from the association of remote cardiovascular complications of hypertensive pregnancies, an example of the unnecessary delay of more than two decades to install a wide prevention strategy when the health system is not on the watch.
Collapse
|
7
|
Pasha M, Wooldridge AL, Kirschenman R, Spaans F, Davidge ST, Cooke CLM. Altered Vascular Adaptations to Pregnancy in a Rat Model of Advanced Maternal Age. Front Physiol 2021; 12:718568. [PMID: 34393831 PMCID: PMC8356803 DOI: 10.3389/fphys.2021.718568] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Accepted: 07/07/2021] [Indexed: 12/20/2022] Open
Abstract
Advanced maternal age (≥35 years old) increases the risk of pregnancy complications such as preeclampsia and fetal growth restriction. We previously demonstrated vascular dysfunction and abnormal pregnancy outcomes in a rat model of advanced maternal age. However, vascular adaptations to pregnancy in aging were not studied. We hypothesize that advanced maternal age is associated with a more vasoconstrictive phenotype due to reduced nitric oxide (NO) and increased activity of matrix metalloproteinases (MMPs), contributing to impaired vascular adaptations to pregnancy. A rat model of advanced maternal age was used: young (4 months) and aged (9.5 months; ∼35 years in humans) non-pregnant and pregnant rats. On gestational day 20 (term = 22 days; non-pregnant rats were aged-matched), blood pressure and heart rate were measured (tail cuff plethysmography) and vascular function was assessed in mesenteric arteries (wire myography). Endothelium-dependent relaxation to methylcholine (MCh) was assessed in the presence/absence of nitric oxide synthase inhibitor (L-NAME), or inhibitors of endothelium-dependent hyperpolarization (EDH; apamin and TRAM-34). Vasoconstriction responses to big endothelin-1 (bigET-1), in the presence/absence of MMPs-inhibitor (GM6001) or endothelin converting enzyme (ECE-1) inhibitor (CGS35066), in addition, ET-1 responsiveness, were measured. Blood pressure was elevated only in aged non-pregnant rats (p < 0.001) compared to all other groups. MCh responses were not different, however, L-NAME decreased maximum vasodilation in young (p < 0.01) and aged pregnant rats (p < 0.001), and decreased MCh sensitivity in young non-pregnant rats (p < 0.01), without effects in aged non-pregnant rats. EDH contribution to relaxation was similar in young non-pregnant, and aged non-pregnant and pregnant rats, while EDH-mediated relaxation was absent in young pregnant rats (p < 0.001). BigET-1 responses were enhanced in aged non-pregnant (p < 0.01) and pregnant rats (p < 0.05). No significant changes in bigET-1 conversion occurred in the presence of MMP-inhibitor, whereas ECE-1 inhibition reduced bigET-1 constriction in aged rats (p < 0.01). No differences in ET-1 sensitivity were observed. In conclusion, contrary to our hypothesis, reduced blood pressure, and an increased EDH-dependent contribution to vasodilation suggest a compensatory mechanism that may reflect beneficial adaptations in these aged rats that were able to maintain pregnancy. These data increase our understanding of how the vascular adaptive pathways in pregnancy compensate for advanced maternal age.
Collapse
Affiliation(s)
- Mazhar Pasha
- Department of Physiology, University of Alberta, Edmonton, AB, Canada
- Department of Obstetrics and Gynecology, University of Alberta, Edmonton, AB, Canada
- Women and Children’s Health Research Institute, University of Alberta, Edmonton, AB, Canada
| | - Amy L. Wooldridge
- Department of Obstetrics and Gynecology, University of Alberta, Edmonton, AB, Canada
- Women and Children’s Health Research Institute, University of Alberta, Edmonton, AB, Canada
| | - Raven Kirschenman
- Department of Obstetrics and Gynecology, University of Alberta, Edmonton, AB, Canada
- Women and Children’s Health Research Institute, University of Alberta, Edmonton, AB, Canada
| | - Floor Spaans
- Department of Obstetrics and Gynecology, University of Alberta, Edmonton, AB, Canada
- Women and Children’s Health Research Institute, University of Alberta, Edmonton, AB, Canada
| | - Sandra T. Davidge
- Department of Physiology, University of Alberta, Edmonton, AB, Canada
- Department of Obstetrics and Gynecology, University of Alberta, Edmonton, AB, Canada
- Women and Children’s Health Research Institute, University of Alberta, Edmonton, AB, Canada
| | - Christy-Lynn M. Cooke
- Department of Obstetrics and Gynecology, University of Alberta, Edmonton, AB, Canada
- Women and Children’s Health Research Institute, University of Alberta, Edmonton, AB, Canada
| |
Collapse
|
8
|
Dombrowski JG, Barateiro A, Peixoto EPM, Barros ABCDS, de Souza RM, Clark TG, Campino S, Wrenger C, Wunderlich G, Palmisano G, Epiphanio S, Gonçalves LA, Marinho CRF. Adverse pregnancy outcomes are associated with Plasmodium vivax malaria in a prospective cohort of women from the Brazilian Amazon. PLoS Negl Trop Dis 2021; 15:e0009390. [PMID: 33914739 PMCID: PMC8112668 DOI: 10.1371/journal.pntd.0009390] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Revised: 05/11/2021] [Accepted: 04/15/2021] [Indexed: 11/29/2022] Open
Abstract
Background Malaria in Brazil represents one of the highest percentages of Latin America cases, where approximately 84% of infections are attributed to Plasmodium (P.) vivax. Despite the high incidence, many aspects of gestational malaria resulting from P. vivax infections remain poorly studied. As such, we aimed to evaluate the consequences of P. vivax infections during gestation on the health of mothers and their neonates in an endemic area of the Amazon. Methods and findings We have conducted an observational cohort study in Brazilian Amazon between January 2013 and April 2015. 600 pregnant women were enrolled and followed until delivery. After applying exclusion criteria, 329 mother-child pairs were included in the analysis. Clinical data regarding maternal infection, newborn’s anthropometric measures, placental histopathological characteristics, and angiogenic and inflammatory factors were evaluated. The presence of plasma IgG against the P. vivax (Pv) MSP119 protein was used as marker of exposure and possible associations with pregnancy outcomes were analyzed. Multivariate logistic regression analysis revealed that P. vivax infections during the first trimester of pregnancy are associated with adverse gestational outcomes such as premature birth (adjusted odds ratio [aOR] 8.12, 95% confidence interval [95%CI] 2.69–24.54, p < 0.0001) and reduced head circumference (aOR 3.58, 95%CI 1.29–9.97, p = 0.01). Histopathology analysis showed marked differences between placentas from P. vivax-infected and non-infected pregnant women, especially regarding placental monocytes infiltrate. Placental levels of vasomodulatory factors such as angiopoietin-2 (ANG-2) and complement proteins such as C5a were also altered at delivery. Plasma levels of anti-PvMSP119 IgG in infected pregnant women were shown to be a reliable exposure marker; yet, with no association with improved pregnancy outcomes. Conclusions This study indicates that P. vivax malaria during the first trimester of pregnancy represents a higher likelihood of subsequent poor pregnancy outcomes associated with marked placental histologic modification and angiogenic/inflammatory imbalance. Additionally, our findings support the idea that antibodies against PvMSP119 are not protective against poor pregnancy outcomes induced by P. vivax infections. Malaria during pregnancy is associated with adverse effects on the fetus and the newborn. As far as we know, no study has previously investigated in a single work, the link between Plasmodium vivax malaria in pregnancy and poor gestational outcomes, alteration of the newborn’s anthropometric profile, placental lesions, angiogenic and inflammatory factors, and humoral immunity against the parasite. For this purpose, we investigated the association between P. vivax malaria during pregnancy and newborn’s anthropometric profile, placental pathology, gestational outcomes, and the presence of IgG against P. vivax MSP119 that may confer protection against infection during pregnancy. We performed a large cohort study of malaria during pregnancy that analyzed data from mother-child pairs delivered between 2013 and 2015 in the Southwestern Brazilian Amazonian region. By evaluating data from 329 pregnancies, we found that P. vivax malaria during the first pregnancy trimester is significantly associated with the occurrence of preterm birth, low birth weight, and reduced newborn head circumference and body length. We also noted that P. vivax malaria in pregnancy promoted placental lesions and homeostasis imbalance, characterized by increased syncytial nuclear aggregates, fibrin deposition, and monocytes/leukocytes infiltrate, as well as imbalanced angiogenic factors, leptin, and cytokines. We observed that pregnant women with IgG against P. vivax MSP119 are not protected against poor pregnancy outcomes caused by P. vivax infections during pregnancy. Our observations improve our understanding of the disease and P. vivax burden during pregnancy, changing the current paradigm of the outcome of P. vivax malaria in pregnancy. That may represent a long-term severe consequence for the affected populations living in P. vivax-endemic regions. Our results also indicate that IgG against P. vivax MSP119 is not associated with protection from poor pregnancy outcomes, excluding this protein as a possible vaccination target that can prevent adverse outcomes caused by P. vivax infections during pregnancy.
Collapse
Affiliation(s)
| | - André Barateiro
- Department of Parasitology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | | | | | | | - Taane Gregory Clark
- Faculty of Infectious & Tropical Diseases, London School of Hygiene & Tropical Medicine, London, United Kingdom
| | - Susana Campino
- Faculty of Infectious & Tropical Diseases, London School of Hygiene & Tropical Medicine, London, United Kingdom
| | - Carsten Wrenger
- Department of Parasitology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Gerhard Wunderlich
- Department of Parasitology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Giuseppe Palmisano
- Department of Parasitology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Sabrina Epiphanio
- Department of Clinical and Toxicological Analyses, Faculty of Pharmaceutical Sciences, University of São Paulo, São Paulo, Brazil
| | - Lígia Antunes Gonçalves
- Department of Parasitology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
- * E-mail: (LAG); (CRFM)
| | - Claudio Romero Farias Marinho
- Department of Parasitology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
- * E-mail: (LAG); (CRFM)
| |
Collapse
|
9
|
Yong K, Luo ZZ, Luo Q, Yang QW, Huang YX, Zhao XX, Zhang Y, Cao SZ. Plasma metabolome alteration in dairy cows with left displaced abomasum before and after surgical correction. J Dairy Sci 2021; 104:8177-8187. [PMID: 33865591 DOI: 10.3168/jds.2020-19761] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2020] [Accepted: 03/12/2021] [Indexed: 12/12/2022]
Abstract
Left displaced abomasum (LDA) leads to substantial changes in the metabolism of dairy cows. Surgical correction of LDA can rapidly improve the health of cows; however, changes in metabolism following surgery are rarely described. To investigate the changes of plasma metabolome in cows with LDA before and after surgical correction, blood samples were collected from 10 healthy postpartum cows and 10 cows with LDA on the day of diagnosis, then again from the LDA cows 14 d after surgery. Serum nonesterified fatty acid, β-hydroxybutyric acid, cortisol and histamine concentration, and antioxidant enzyme (superoxide dismutase and glutathione peroxidase) activities were evaluated, and the metabolic profile in plasma was analyzed using ultra-high-performance liquid chromatography time-of-flight mass spectrometry. The results demonstrated that cows with LDA experienced severe negative energy balance and oxidative stress, which can be improved by surgical correction. The metabolic profile was analyzed using multidimensional and univariate statistical analyses, and different metabolites were identified. In total, 102 metabolites differed between cows with LDA and healthy cows. After surgical correction, 65 metabolites changed in cows with LDA, compared with these cows during the LDA event. Following surgical correction, AA levels tended to increase, and lipid levels tended to decrease in cows with LDA. Pathway analysis indicated marked changes in linoleic acid metabolism, Arg biosynthesis, and Gly, Ser, and Thr metabolism in cows at the onset of LDA and following surgical correction. Surgical treatment reversed the changes in AA and lipid metabolism in cows with LDA.
Collapse
Affiliation(s)
- K Yong
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Gansu Agricultural University, Lanzhou 730070, China; Department of Animal Husbandry and Veterinary Medicine, College of Animal Science and Technology, Chongqing Three Gorges Vocational College, Chongqing 404100, China
| | - Z Z Luo
- Department of Animal Husbandry and Veterinary Medicine, College of Animal Science and Technology, Chongqing Three Gorges Vocational College, Chongqing 404100, China; Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China
| | - Q Luo
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China
| | - Q W Yang
- Department of Animal Husbandry and Veterinary Medicine, College of Animal Science and Technology, Chongqing Three Gorges Vocational College, Chongqing 404100, China
| | - Y X Huang
- Institute of Biodiversity, Animal Health and Comparative Medicine, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow G61 1QH, United Kingdom
| | - X X Zhao
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Gansu Agricultural University, Lanzhou 730070, China
| | - Y Zhang
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Gansu Agricultural University, Lanzhou 730070, China.
| | - S Z Cao
- Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China.
| |
Collapse
|
10
|
Wang Y, Zhu L, Xu D, Gao L, Li Y, Liang B, Zhang X, Yue Y. Intrahepatic Cholestasis of Pregnancy Is Associated with Reduced Nitric Oxide Synthase (iNOS) in Plasma and Placentas: A Pilot Study. Med Sci Monit 2021; 27:e930176. [PMID: 33846282 PMCID: PMC8052913 DOI: 10.12659/msm.930176] [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] [Indexed: 11/18/2022] Open
Abstract
Background Intrahepatic cholestasis of pregnancy (ICP) is a condition specific to pregnancy, leading to increased fetal morbidity and mortality. Nitric oxide synthase (iNOS) may be a factor regulating the vasodilation of blood vessels, which are relevant to ischemic-hypoxic conditions. We aimed to explore the potential relationship between iNOS and ICP. Material/Methods A prospective, case-control study was conducted including 77 pregnant women with ICP and 80 healthy pregnant women as controls. Enzyme-linked immunosorbent assays were used to investigate maternal plasma iNOS levels. The placenta mRNA levels and cell-specific localization of iNOS were determined by quantitative polymerase chain reaction, western blotting, and immunohistochemical analysis. A multivariate linear regression model was used to identify the independent factors of serum total biliary acids (TAB) in ICP. Results Compared with controls, the expression of iNOS was significantly lower in maternal serum and placentas with ICP (P<0.001). Maternal plasm iNOS levels were negatively correlated with TAB (r=−0.450, P<0.001), cholyglycine (r=−0.367, P<0.001), alanine aminotransferase (r=−.359, P<0.001), and aspartate aminotransferase (r=−0.329, P<0.001). iNOS level was an indicator for ICP by multivariate linear regression analysis (β=−0.505, P<0.001). The ROC curve indicated the optimal cut-off level for iNOS was 2865.43 pg/mL (sensitivity, 85.71%; specificity, 63.75%). The ROC curve area for iNOS was 0.793 (95% CI 0.722–0.864). Conclusions iNOS plays an important role in poor fetoplacental vascular perfusion and adverse pregnancy outcomes. iNOS can provide complementary information in predicting the extent and severity of ICP.
Collapse
Affiliation(s)
- Yun Wang
- Department of Obstetrics and Gynecology, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Suzhou, Jiangsu, China (mainland)
| | - Liping Zhu
- Department of Obstetrics and Gynecology, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Suzhou, Jiangsu, China (mainland)
| | - Duo Xu
- Department of Obstetrics and Gynecology, Shenzhen Maternity and Child Healthcare Hospital Affiliated with Southern Medical University, Shenzhen, Guangdong, China (mainland)
| | - Liying Gao
- Department of Obstetrics and Gynecology, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Suzhou, Jiangsu, China (mainland)
| | - Yongmei Li
- Department of Obstetrics and Gynecology, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Suzhou, Jiangsu, China (mainland)
| | - Baoquan Liang
- Department of Obstetrics and Gynecology, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Suzhou, Jiangsu, China (mainland)
| | - Xiaoqian Zhang
- Department of Obstetrics and Gynecology, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Suzhou, Jiangsu, China (mainland)
| | - Yongfei Yue
- Department of Obstetrics and Gynecology, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Suzhou, Jiangsu, China (mainland)
| |
Collapse
|
11
|
Nuh AM, You Y, Ma M. Information on dysregulation of microRNA in placenta linked to preeclampsia. Bioinformation 2021; 17:240-248. [PMID: 34393443 PMCID: PMC8340720 DOI: 10.6026/97320630017240] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Revised: 01/30/2021] [Accepted: 01/31/2021] [Indexed: 12/12/2022] Open
Abstract
MicroRNAs are single-stranded, non-coding RNA molecules, regulate gene expression at the post-transcriptional level. They are expressed in the human body and have a significant impact on the different processes of pathological illness. A developing placenta undergoes a series of stages after successful fertilization, such as cell division, migration, adhesion, apoptosis, and angiogenesis. MicroRNAs dysregulation in placenta has been linked to pregnancy-related complications such as preeclampsia. Therefore, it is of interest to document known information (list of microRNA) on this issue in the development of biological tools for diagnosis, treatment and prevention of the disease.
Collapse
Affiliation(s)
- Abdifatah Mohamed Nuh
- Department of Obstetrics, Affiliated Hospital of Yangzhou University, Yangzhou, Jiangsu Province, 225000, China
- Yangzhou University Medical College, Yangzhou, Jiangsu Province, 225000, China
| | - Yan You
- Department of Obstetrics, Affiliated Hospital of Yangzhou University, Yangzhou, Jiangsu Province, 225000, China
- Yangzhou University Medical College, Yangzhou, Jiangsu Province, 225000, China
| | - Min Ma
- Department of Obstetrics, Affiliated Hospital of Yangzhou University, Yangzhou, Jiangsu Province, 225000, China
- Yangzhou University Medical College, Yangzhou, Jiangsu Province, 225000, China
| |
Collapse
|
12
|
Yang XY, Xu LF, Luo Y, Li N, Yang JP, Zhu LP, Li ZX. Effects of age on the peak ratio of ophthalmic artery Doppler. Medicine (Baltimore) 2020; 99:e23694. [PMID: 33350749 PMCID: PMC7769302 DOI: 10.1097/md.0000000000023694] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/04/2020] [Accepted: 11/14/2020] [Indexed: 11/26/2022] Open
Abstract
This study aimed to investigate the effects of age on the peak ratio (PR) of ophthalmic artery (OA) Doppler.The initial peak velocity (P1), second peak velocity (P2) and PR of OA were detected by color Doppler ultrasonography in 147 healthy subjects. All of the subjects were divided into 6 groups (G1-G6) according to the age. (G1, 20-29 years; G2, 30-39 years; G3, 40-49 years; G4, 50-59 years; G5, 60-69 years; and G6, 70 years or older). The blood pressure and heart rate were also examined before ultrasonography. The influences of age, blood pressure and heart rate on the P1, P2, and PR were further evaluated.There were significant differences in the P2 and PR among different age groups except for P1. There were no significant differences in the P2 and PR between the first 2 groups, neither among the latter 4 groups. Nevertheless, P2 and PR in the first 2 groups were significantly different from those in the latter 4 groups. In addition, both P2 and PR (not P1) increased significantly with age, systolic and diastolic blood pressure. P1, P2 and PR were not related to heart rate. Both P2 and PR were closely related to the age. PR also had a weak relationship with systolic blood pressure.Both P2 and PR of OA Doppler increase with age. Concern should be raised when P2 and PR are used to evaluate the hemodynamic change of OA.
Collapse
Affiliation(s)
- Xi-Yue Yang
- Department of Diagnostic Ultrasound, Guigang People's Hospital, Guigang
| | - Li-Fang Xu
- Department of Diagnostic Ultrasound, Second Affiliated Hospital of Guangxi Medical University
| | - Yuan Luo
- Department of Diagnostic Ultrasound, First Affiliated Hospital of Guangxi Medical University
| | - Na Li
- Department of Diagnostic Ultrasound, First Affiliated Hospital of Guangxi Medical University
| | - Jin-Pin Yang
- Department of Diagnostic Ultrasound, Guangxi Zhuang Autonomous Region Institute of Occupational Disease Prevention and Control, Nanning, Guangxi, China
| | - Lin-Ping Zhu
- Department of Diagnostic Ultrasound, Guangxi Zhuang Autonomous Region Institute of Occupational Disease Prevention and Control, Nanning, Guangxi, China
| | - Zhi-Xian Li
- Department of Diagnostic Ultrasound, First Affiliated Hospital of Guangxi Medical University
| |
Collapse
|
13
|
Valdés G, Acuña S, Schneider D, Ortíz R, Padilla O. Bradykinin Exerts Independent Effects on Trophoblast Invasion and Blood Pressure in Pregnant Guinea Pigs. Reprod Sci 2020; 27:1648-1655. [PMID: 32430711 DOI: 10.1007/s43032-020-00195-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
INTRODUCTION The pleiotropic kininogen-kallikrein-kinin system is upregulated in pregnancy and localizes in the uteroplacental unit. To identify the systemic and local participation of the bradykinin type 2 receptor (B2R), this was antagonized by Bradyzide (BDZ) during 2 periods: from days 20 to 34 and from days 20 to 60 in pregnant guinea pigs. METHODS Pregnant guinea pigs received subcutaneous infusions of saline or BDZ from gestational day 20 until sacrifice on day 34 (Short B2R Antagonism [SH-B2RA]) or on day 60 (Prolonged B2R Antagonism [PR-B2RA]). In SH-BDZA, systolic blood pressure was determined on day 34, while in PR-BDZA it was measured preconceptionally, at days 40 and 60. On gestational day 60, plasma creatinine, uricemia, proteinuria, fetal, placental and maternal kidney weight, and the extent of trophoblast invasion were evaluated. RESULTS The SH-B2RA increased systolic blood pressure on day 34 and reduced trophoblast myometrial invasion, spiral artery remodeling, and placental sufficiency. The PR-B2RA suppressed the normal blood pressure fall observed on days 40 and 60; vascular transformation, placental efficiency, urinary protein, serum creatinine, and uric acid did not differ between the groups. The proportion of all studied mothers with lost fetuses was greater under BDZ infusion than in controls. CONCLUSION The increased systolic blood pressure and transient reduction in trophoblast invasion and fetal/placental weight in the SH-B2R blockade and the isolated impact on blood pressure in the PR-B2R blockade indicate that bradykinin independently modulates systemic hemodynamics and the uteroplacental unit through cognate vascular and local B2R receptors.
Collapse
Affiliation(s)
- Gloria Valdés
- Centro de Investigaciones Médicas, Facultad de Medicina, Pontificia Universidad Católica, Santiago, Chile.
- Departamento de Nefrología, Facultad de Medicina, Pontificia Universidad Católica, Santiago, Chile.
| | - Stephanie Acuña
- Centro de Investigaciones Médicas, Facultad de Medicina, Pontificia Universidad Católica, Santiago, Chile
| | - Daniela Schneider
- Centro de Investigaciones Médicas, Facultad de Medicina, Pontificia Universidad Católica, Santiago, Chile
| | - Rita Ortíz
- Centro de Investigaciones Médicas, Facultad de Medicina, Pontificia Universidad Católica, Santiago, Chile
| | - Oslando Padilla
- Departamento de Salud Pública, Facultad de Medicina, Pontificia Universidad Católica, Santiago, Chile
| |
Collapse
|
14
|
Differential Diagnosis of Preeclampsia Based on Urine Peptidome Features Revealed by High Resolution Mass Spectrometry. Diagnostics (Basel) 2020; 10:diagnostics10121039. [PMID: 33287124 PMCID: PMC7761751 DOI: 10.3390/diagnostics10121039] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Revised: 11/25/2020] [Accepted: 12/01/2020] [Indexed: 11/16/2022] Open
Abstract
Preeclampsia (PE) is a severe pregnancy complication, which may be considered as a systemic response in the second half of pregnancy to physiological failures in the first trimester, and can lead to very serious consequences for the health of the mother and fetus. Since PE is often associated with proteinuria, urine proteomic assays may represent a powerful tool for timely diagnostics and appropriate management. High resolution mass spectrometry was applied for peptidome analysis of 127 urine samples of pregnant women with various hypertensive complications: normotensive controls (n = 17), chronic hypertension (n = 16), gestational hypertension (n = 15), mild PE (n = 25), severe PE (n = 25), and 29 patients with complicated diagnoses. Analysis revealed 3869 peptides, which mostly belong to 116 groups with overlapping sequences. A panel of 22 marker peptide groups reliably differentiating PE was created by multivariate statistics, and included 15 collagen groups (from COL1A1, COL3A1, COL2A1, COL4A4, COL5A1, and COL8A1), and single loci from alpha-1-antitrypsin, fibrinogen, membrane-associated progesterone receptor component 1, insulin, EMI domain-containing protein 1, lysine-specific demethylase 6B, and alpha-2-HS-glycoprotein each. ROC analysis of the created model resulted in 88% sensitivity, 96.8% specificity, and receiver operating characteristic curve (AUC) = 0.947. Obtained results confirm the high diagnostic potential of urinary peptidome profiling for pregnancy hypertensive disorders diagnostics.
Collapse
|
15
|
Brosnihan KB, Merrill DC, Yamaleyeva LM, Chen K, Neves L, Joyner J, Givner C, Lanier K, Moorefield C, Westwood B. Longitudinal study of angiotensin peptides in normal and pre-eclamptic pregnancy. Endocrine 2020; 69:410-419. [PMID: 32319014 PMCID: PMC10519175 DOI: 10.1007/s12020-020-02296-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Accepted: 03/28/2020] [Indexed: 11/30/2022]
Abstract
PURPOSE To address whether differential regulation of the renin-angiotensin-aldosterone system occurs in pre-eclampsia, we performed an analysis of the time course of circulating and urinary profiles of the vasoconstrictor (Ang II) and the vasodilator [Ang-(1-7)] peptides in normal pregnant (NP) and pre-eclamptic (PE) women. METHODS Urine and plasma samples from 86 nulliparous women were collected prospectively; 67 subjects continued as NP and 19 developed PE. Subjects were enrolled prior to 12 weeks of gestation and plasma and spot urine samples were obtained throughout gestation. Control samples were obtained at 6 weeks postpartum (PP). RESULTS Mean blood pressure (p < 0.001) was elevated at 31-37 weeks of gestation in PE subjects as compared with NP subjects. Plasma Ang I and Ang II levels were elevated in NP subjects as early as 16 weeks of gestation and maintained throughout gestation. In PE subjects both plasma Ang I and Ang II were elevated at 16-33 weeks as compared with PP levels. PE subjects showed reduced plasma Ang I and Ang II (at 35-37 weeks of gestation) compared with NP subjects. Plasma Ang-(1-7) was unchanged in both groups. All three urinary peptides increased throughout gestation in NP subjects. In PE subjects urinary Ang I was increased at 23-26 weeks and was maintained throughout gestation. Urinary Ang II was increased at 27-29 and 31-33 weeks of gestation. PE subjects had no change in urinary Ang-(1-7). CONCLUSION The activation of the RAS, particularly Ang II throughout normal gestation may contribute to the maintenance of vascular tone during normal pregnancy. However higher sensitivity to Ang II in pre-eclampsia may be potentiated by the higher circulating and urinary levels of Ang II, unopposed by local renal Ang-(1-7), and thus may contribute to the development of pre-eclampsia.
Collapse
Affiliation(s)
- K Bridget Brosnihan
- Department of Surgery/Hypertension and Vascular Research, Wake Forest School of Medicine, Winston-Salem, NC, 27157, USA.
| | | | - Liliya M Yamaleyeva
- Department of Surgery/Hypertension and Vascular Research, Wake Forest School of Medicine, Winston-Salem, NC, 27157, USA
| | - Kai Chen
- Aspirus Wausau Medical Center, Wausau, WI, 54401, USA
| | - Liomar Neves
- Department of Surgery/Hypertension and Vascular Research, Wake Forest School of Medicine, Winston-Salem, NC, 27157, USA
| | - JaNae Joyner
- Department of Surgery/Hypertension and Vascular Research, Wake Forest School of Medicine, Winston-Salem, NC, 27157, USA
| | - Courtney Givner
- Department of Surgery/Hypertension and Vascular Research, Wake Forest School of Medicine, Winston-Salem, NC, 27157, USA
| | - Kristy Lanier
- Department of Surgery/Hypertension and Vascular Research, Wake Forest School of Medicine, Winston-Salem, NC, 27157, USA
| | - Cheryl Moorefield
- Department of Surgery/Hypertension and Vascular Research, Wake Forest School of Medicine, Winston-Salem, NC, 27157, USA
| | - Brian Westwood
- Department of Surgery/Hypertension and Vascular Research, Wake Forest School of Medicine, Winston-Salem, NC, 27157, USA
| |
Collapse
|
16
|
da Silva ADS, Nunes DVQ, Carvalho LCDRMD, Santos IB, de Menezes MP, de Bem GF, Costa CAD, Moura RSD, Resende AC, Ognibene DT. Açaí ( Euterpe oleracea Mart) seed extract protects against maternal vascular dysfunction, hypertension, and fetal growth restriction in experimental preeclampsia. Hypertens Pregnancy 2020; 39:211-219. [PMID: 32306786 DOI: 10.1080/10641955.2020.1754850] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Objective: To investigate whether Euterpe oleracea Mart. (açaí) seed extract (ASE) prevents maternal cardiovascular changes and intrauterine growth restriction (IUGR) in experimental preeclampsia (PE).Methods: ASE administration (200 mg/kg/day) during mid to late pregnancy in a rat model of L-NAME-induced PE.Results: ASE impaired the maternal hypertension and microalbuminuria as well as the lower fetal and placental weight in experimental PE. ASE also prevented the maternal vascular dysfunction and lipoperoxidation in this model.Conclusion: ASE protected against maternal cardiovascular changes and IUGR in the L-NAME-induced PE. The protective effect of ASE may be partly explained by its antioxidant property.
Collapse
Affiliation(s)
| | - Douglas Val Quintans Nunes
- Department of Pharmacology, Institute of Biology, Rio de Janeiro State University, Rio de Janeiro, Brazil
| | | | - Izabelle Barcellos Santos
- Department of Pharmacology, Institute of Biology, Rio de Janeiro State University, Rio de Janeiro, Brazil
| | - Matheus Pontes de Menezes
- Department of Pharmacology, Institute of Biology, Rio de Janeiro State University, Rio de Janeiro, Brazil
| | - Graziele Freitas de Bem
- Department of Pharmacology, Institute of Biology, Rio de Janeiro State University, Rio de Janeiro, Brazil
| | - Cristiane Aguiar da Costa
- Department of Pharmacology, Institute of Biology, Rio de Janeiro State University, Rio de Janeiro, Brazil
| | - Roberto Soares de Moura
- Department of Pharmacology, Institute of Biology, Rio de Janeiro State University, Rio de Janeiro, Brazil
| | - Angela Castro Resende
- Department of Pharmacology, Institute of Biology, Rio de Janeiro State University, Rio de Janeiro, Brazil
| | - Dayane Teixeira Ognibene
- Department of Pharmacology, Institute of Biology, Rio de Janeiro State University, Rio de Janeiro, Brazil
| |
Collapse
|
17
|
Fischer DP, Griffiths AL, Lui S, Sabar UJ, Farrar D, O'Donovan PJ, Woodward DF, Marshall KM. Distribution and Function of Prostaglandin E 2 Receptors in Mouse Uterus: Translational Value for Human Reproduction. J Pharmacol Exp Ther 2020; 373:381-390. [PMID: 32205366 DOI: 10.1124/jpet.119.263509] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Accepted: 03/10/2020] [Indexed: 12/19/2022] Open
Abstract
Prostaglandin (PG) E analogs are used clinically to ripen the cervix and induce labor. However, selective receptor agonists may have potential to improve induction response rates or manage unwanted uterine hypercontractility in conditions such as dysmenorrhea and preterm labor. To characterize their therapeutic value, PGE2 analogs were used to investigate the functional E-type prostanoid (EP) receptor population in isolated human uterus. Responsiveness in mouse tissues was also examined to validate its use as a preclinical model. Uterine samples were obtained from mice at dioestrus (n = 12), term gestation (n = 14), and labor (n = 12) and from the lower uterus of women undergoing hysterectomy (n = 12) or Caesarean section (n = 18). Vehicle and agonist effects were assessed using superfusion and immersion techniques. PGE2 evoked predominant excitatory responses in mouse and relaxation in human tissues. Selective EP4 agonists inhibited tissue activity in both nonpregnant species, while the EP2 mimetic CP533536 also attenuated uterine contractions throughout gestation. The uterotonic effects of the EP3/1 agonist sulprostone were more pronounced than the EP1 agonist ONO-D1-004, corresponding to abundant EP3 receptor expression in all samples. The contractile phenotype in mouse compared with human uteri may relate to regional differences as well as high expression of EP3 receptor transcripts. Similarities in nonpregnant and gestational tissues across species suggest that EP3 may represent a valuable translational drug target for preventing uterine hypercontractility by employing a selective antagonist. SIGNIFICANCE STATEMENT: This research validates the use of nonpregnant mice for preclinical drug discovery of uterine EP receptor targets. To determine the utility of novel drugs and delivery systems at term pregnancy and labor, pharmacological agents interacting with EP3 receptors have clear translational value.
Collapse
Affiliation(s)
- Deborah P Fischer
- Division of Pharmacy and Optometry, School of Health Sciences (D.P.F., K.M.M.) and Division of Developmental Biology and Medicine, School of Medical Sciences (S.L.), Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester, United Kingdom; School of Pharmacy, University of Bradford, Bradford, West Yorkshire, United Kingdom (A.L.G., U.J.S.); Bradford Institute for Health Research, Bradford Royal Infirmary, Duckworth Lane, Bradford, West Yorkshire, United Kingdom (D.F.); Obstetrics and Gynaecological Oncology, Yorkshire Clinic, Bradford Road, Bingley, West Yorkshire, United Kingdom (P.J.D.); Department of Bioengineering, Imperial College London, London, United Kingdom (D.F.W.); and JeniVision Inc., Irvine, California, USA (D.F.W.).
| | - Anna L Griffiths
- Division of Pharmacy and Optometry, School of Health Sciences (D.P.F., K.M.M.) and Division of Developmental Biology and Medicine, School of Medical Sciences (S.L.), Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester, United Kingdom; School of Pharmacy, University of Bradford, Bradford, West Yorkshire, United Kingdom (A.L.G., U.J.S.); Bradford Institute for Health Research, Bradford Royal Infirmary, Duckworth Lane, Bradford, West Yorkshire, United Kingdom (D.F.); Obstetrics and Gynaecological Oncology, Yorkshire Clinic, Bradford Road, Bingley, West Yorkshire, United Kingdom (P.J.D.); Department of Bioengineering, Imperial College London, London, United Kingdom (D.F.W.); and JeniVision Inc., Irvine, California, USA (D.F.W.)
| | - Sylvia Lui
- Division of Pharmacy and Optometry, School of Health Sciences (D.P.F., K.M.M.) and Division of Developmental Biology and Medicine, School of Medical Sciences (S.L.), Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester, United Kingdom; School of Pharmacy, University of Bradford, Bradford, West Yorkshire, United Kingdom (A.L.G., U.J.S.); Bradford Institute for Health Research, Bradford Royal Infirmary, Duckworth Lane, Bradford, West Yorkshire, United Kingdom (D.F.); Obstetrics and Gynaecological Oncology, Yorkshire Clinic, Bradford Road, Bingley, West Yorkshire, United Kingdom (P.J.D.); Department of Bioengineering, Imperial College London, London, United Kingdom (D.F.W.); and JeniVision Inc., Irvine, California, USA (D.F.W.)
| | - Uzmah J Sabar
- Division of Pharmacy and Optometry, School of Health Sciences (D.P.F., K.M.M.) and Division of Developmental Biology and Medicine, School of Medical Sciences (S.L.), Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester, United Kingdom; School of Pharmacy, University of Bradford, Bradford, West Yorkshire, United Kingdom (A.L.G., U.J.S.); Bradford Institute for Health Research, Bradford Royal Infirmary, Duckworth Lane, Bradford, West Yorkshire, United Kingdom (D.F.); Obstetrics and Gynaecological Oncology, Yorkshire Clinic, Bradford Road, Bingley, West Yorkshire, United Kingdom (P.J.D.); Department of Bioengineering, Imperial College London, London, United Kingdom (D.F.W.); and JeniVision Inc., Irvine, California, USA (D.F.W.)
| | - Diane Farrar
- Division of Pharmacy and Optometry, School of Health Sciences (D.P.F., K.M.M.) and Division of Developmental Biology and Medicine, School of Medical Sciences (S.L.), Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester, United Kingdom; School of Pharmacy, University of Bradford, Bradford, West Yorkshire, United Kingdom (A.L.G., U.J.S.); Bradford Institute for Health Research, Bradford Royal Infirmary, Duckworth Lane, Bradford, West Yorkshire, United Kingdom (D.F.); Obstetrics and Gynaecological Oncology, Yorkshire Clinic, Bradford Road, Bingley, West Yorkshire, United Kingdom (P.J.D.); Department of Bioengineering, Imperial College London, London, United Kingdom (D.F.W.); and JeniVision Inc., Irvine, California, USA (D.F.W.)
| | - Peter J O'Donovan
- Division of Pharmacy and Optometry, School of Health Sciences (D.P.F., K.M.M.) and Division of Developmental Biology and Medicine, School of Medical Sciences (S.L.), Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester, United Kingdom; School of Pharmacy, University of Bradford, Bradford, West Yorkshire, United Kingdom (A.L.G., U.J.S.); Bradford Institute for Health Research, Bradford Royal Infirmary, Duckworth Lane, Bradford, West Yorkshire, United Kingdom (D.F.); Obstetrics and Gynaecological Oncology, Yorkshire Clinic, Bradford Road, Bingley, West Yorkshire, United Kingdom (P.J.D.); Department of Bioengineering, Imperial College London, London, United Kingdom (D.F.W.); and JeniVision Inc., Irvine, California, USA (D.F.W.)
| | - David F Woodward
- Division of Pharmacy and Optometry, School of Health Sciences (D.P.F., K.M.M.) and Division of Developmental Biology and Medicine, School of Medical Sciences (S.L.), Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester, United Kingdom; School of Pharmacy, University of Bradford, Bradford, West Yorkshire, United Kingdom (A.L.G., U.J.S.); Bradford Institute for Health Research, Bradford Royal Infirmary, Duckworth Lane, Bradford, West Yorkshire, United Kingdom (D.F.); Obstetrics and Gynaecological Oncology, Yorkshire Clinic, Bradford Road, Bingley, West Yorkshire, United Kingdom (P.J.D.); Department of Bioengineering, Imperial College London, London, United Kingdom (D.F.W.); and JeniVision Inc., Irvine, California, USA (D.F.W.)
| | - Kay M Marshall
- Division of Pharmacy and Optometry, School of Health Sciences (D.P.F., K.M.M.) and Division of Developmental Biology and Medicine, School of Medical Sciences (S.L.), Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester, United Kingdom; School of Pharmacy, University of Bradford, Bradford, West Yorkshire, United Kingdom (A.L.G., U.J.S.); Bradford Institute for Health Research, Bradford Royal Infirmary, Duckworth Lane, Bradford, West Yorkshire, United Kingdom (D.F.); Obstetrics and Gynaecological Oncology, Yorkshire Clinic, Bradford Road, Bingley, West Yorkshire, United Kingdom (P.J.D.); Department of Bioengineering, Imperial College London, London, United Kingdom (D.F.W.); and JeniVision Inc., Irvine, California, USA (D.F.W.)
| |
Collapse
|
18
|
Whole-Genome Uterine Artery Transcriptome Profiling and Alternative Splicing Analysis in Rat Pregnancy. Int J Mol Sci 2020; 21:ijms21062079. [PMID: 32197362 PMCID: PMC7139363 DOI: 10.3390/ijms21062079] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Revised: 03/05/2020] [Accepted: 03/13/2020] [Indexed: 01/27/2023] Open
Abstract
During pregnancy, the uterine artery (UA) undergoes extensive remodeling to permit a 20–40 fold increase in blood flow with associated changes in the expression of a multitude of genes. This study used next-gen RNA sequencing technology to identify pathways and genes potentially involved in arterial adaptations in pregnant rat UA (gestation day 20) compared with non-pregnant rat UA (diestrus). A total of 2245 genes were differentially expressed, with 1257 up-regulated and 970 down-regulated in pregnant UA. Gene clustering analysis revealed a unique cluster of suppressed genes implicated in calcium signaling pathway and vascular smooth muscle contraction in pregnant UA. Transcription factor binding site motif scanning identified C2H2 ZF, AP-2 and CxxC as likely factors functional on the promoters of down-regulated genes involved in calcium signaling and vascular smooth muscle contraction. In addition, 1686 genes exhibited alternative splicing that were mainly implicated in microtubule organization and smooth muscle contraction. Cross-comparison analysis identified novel genes that were both differentially expressed and alternatively spliced; these were involved in leukocyte and B cell biology and lipid metabolism. In conclusion, this first comprehensive study provides a valuable resource for understanding the molecular mechanism underlying gestational uterine arterial adaptations during pregnancy.
Collapse
|
19
|
Henriksson HE, White RA, Iliadis SI, Fransson E, Papadopoulos FC, Sundström-Poromaa I, Skalkidou A. Spring peaks and autumn troughs identified in peripheral inflammatory markers during the peripartum period. Sci Rep 2019; 9:15328. [PMID: 31653981 PMCID: PMC6814733 DOI: 10.1038/s41598-019-51527-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2019] [Accepted: 10/01/2019] [Indexed: 11/08/2022] Open
Abstract
Seasonal variations have recently been described in biomarkers, cell types, and gene expression associated with the immune system, but so far no studies have been conducted among women in the peripartum period. It is of note that pregnancy complications and outcomes, as well as autoimmune diseases, have also been reported to exhibit seasonal fluctuations. We report here a clear-cut seasonal pattern of 23 inflammatory markers, analysed using proximity-extension assay technology, in pregnant women. The inflammatory markers generally peaked in the spring and had a trough in the autumn. During the postpartum period we found seasonality in one inflammatory marker, namely monocyte chemotactic protein 4 (MCP-4). Our findings suggest that seasonal variations in peripheral inflammatory markers are only observed during pregnancy. The results of this study could be valuable to professionals working within the field of immunology-related areas, and provide insight for the understanding of obstetric complications.
Collapse
Affiliation(s)
- Hanna E Henriksson
- Department of Women's and Children's Health, Uppsala University, Uppsala, Sweden.
| | | | - Stavros I Iliadis
- Department of Women's and Children's Health, Uppsala University, Uppsala, Sweden
| | - Emma Fransson
- Department of Women's and Children's Health, Uppsala University, Uppsala, Sweden
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Stockholm, Sweden
| | | | | | - Alkistis Skalkidou
- Department of Women's and Children's Health, Uppsala University, Uppsala, Sweden
| |
Collapse
|
20
|
Cooke CLM, Davidge ST. Advanced maternal age and the impact on maternal and offspring cardiovascular health. Am J Physiol Heart Circ Physiol 2019; 317:H387-H394. [PMID: 31199185 DOI: 10.1152/ajpheart.00045.2019] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Delaying pregnancy, which is on the rise, may increase the risk of cardiovascular disease in both women and their children. The physiological mechanisms that lead to these effects are not fully understood but may involve inadequate adaptations of the maternal cardiovascular system to pregnancy. Indeed, there is abundant evidence in the literature that a fetus developing in a suboptimal in utero environment (such as in pregnancies complicated by fetal growth restriction, preterm birth, and/or preeclampsia) is at an increased risk of cardiovascular disease in adulthood, the developmental origins of health and disease theory. Although women of advanced age are at a significantly increased risk of pregnancy complications, there is limited information as to whether advanced maternal age constitutes an added stressor on the prenatal environment of the fetus, and whether or not this is secondary to impaired cardiovascular function during pregnancy. This review summarizes the current literature available on the impact of advanced maternal age on cardiovascular adaptations to pregnancy and the role of maternal age on long-term health risks for both the mother and offspring.
Collapse
Affiliation(s)
- Christy-Lynn M Cooke
- Department of Obstetrics and Gynecology, University of Alberta, Edmonton, Alberta, Canada.,Women and Children's Health Research Institute and the Cardiovascular Research Centre, Edmonton, Alberta, Canada
| | - Sandra T Davidge
- Department of Obstetrics and Gynecology, University of Alberta, Edmonton, Alberta, Canada.,Department of Physiology, University of Alberta, Edmonton, Alberta, Canada.,Women and Children's Health Research Institute and the Cardiovascular Research Centre, Edmonton, Alberta, Canada
| |
Collapse
|
21
|
Espinoza J, Betancourt A, Belfort MA, Shamshirsaz AA, Fox KA, Yallampalli C. Placental growth factor blunts uterine artery responses to angiotensin II. BJOG 2019; 126:1058-1064. [PMID: 30771259 DOI: 10.1111/1471-0528.15656] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/02/2019] [Indexed: 01/13/2023]
Abstract
OBJECTIVE Changes in maternal serum concentration of placental growth factor (PlGF) and vascular response to intravascular infusion of Angiotensin II (Ang II) follow a bell-shaped curve pattern during gestation. This study evaluates the effects of PlGF and soluble vascular endothelial growth factor receptor-1 (sFlt-1) on responses of human uterine arteries (UA) to Ang II. DESIGN Experimental. SETTING Baylor College of Medicine and Texas Children's Hospital-Pavilion for Women. SAMPLE Uterine arteries samples (n = 14) were obtained from normotensive women undergoing caesarean hysterectomy at ≥32 weeks. METHODS Uterine arteries rings were incubated with (1) Krebs solution; (2) PlGF at 1.45, 14.5, and 500 pg/ml; (3) sFlt-1 at 2 ng/ml; and (4) a combination of sFlt-1, and PlGF. Dose-contraction responses to Ang II were determined in UA rings incubated in the above-mentioned conditions. Responses were also measured in presence of L-NAME or inhibitors of endothelium-derived hyperpolarising factor: apamine and charybdotoxin. The t-test was used for comparisons. MAIN OUTCOME MEASURE Changes in vascular reactivity of UA rings. RESULTS PlGF blunted (P = 0.03) and sFlt-1 increased (P <0.01) the UA maximum responses to Ang II. A combination of sFlt-1 and PlGF blunted UA responses to Ang II (P < 0.05). l-NAME, apamine, and charybdotoxin reversed the relaxation effects of PlGF on UA responses to Ang II (P < 0.05). CONCLUSIONS PlGF contributes to the blunted vascular response to Angiotensin II during normotensive pregnancies and sFlt-1 appears to attenuate this effect. PlGF and sFlt-1 may contribute to the regulation of vascular tone during pregnancy by altering the vascular response to Angiotensin II. FUNDING Baylor College of Medicine. TWEETABLE ABSTRACT Placental growth factor and soluble vascular endothelial growth factor receptor-1 modulate the uterine artery response to Angiotensin II in normotensive pregnant women.
Collapse
Affiliation(s)
- J Espinoza
- Department of Obstetrics and Gynecology, Baylor College of Medicine, Texas Children's Hospital-Pavilion for Women, Houston, TX, USA
| | - A Betancourt
- Department of Obstetrics and Gynecology, Baylor College of Medicine, Texas Children's Hospital-Pavilion for Women, Houston, TX, USA
| | - M A Belfort
- Department of Obstetrics and Gynecology, Baylor College of Medicine, Texas Children's Hospital-Pavilion for Women, Houston, TX, USA
| | - A A Shamshirsaz
- Department of Obstetrics and Gynecology, Baylor College of Medicine, Texas Children's Hospital-Pavilion for Women, Houston, TX, USA
| | - K A Fox
- Department of Obstetrics and Gynecology, Baylor College of Medicine, Texas Children's Hospital-Pavilion for Women, Houston, TX, USA
| | - C Yallampalli
- Department of Obstetrics and Gynecology, Baylor College of Medicine, Texas Children's Hospital-Pavilion for Women, Houston, TX, USA
| |
Collapse
|
22
|
Valdés G, Acuña S, Schneider D, Ortíz R, Padilla O. Bradykinin Exerts Independent Effects on Trophoblast Invasion and Blood Pressure in Pregnant Guinea Pigs. Reprod Sci 2019:1933719119833494. [PMID: 30836849 DOI: 10.1177/1933719119833494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
INTRODUCTION: The pleiotropic kininogen-kallikrein-kinin system is upregulated in pregnancy and localizes in the uteroplacental unit. To identify the systemic and local participation of the bradykinin type 2 receptor (B2R), this was antagonized by Bradyzide (BDZ) during 2 periods: from days 20 to 34 and from days 20 to 60 in pregnant guinea pigs. METHODS: Pregnant guinea pigs received subcutaneous infusions of saline or BDZ from gestational day 20 until sacrifice on day 34 (Short B2R Antagonism [SH-B2RA]) or on day 60 (Prolonged B2R Antagonism [PR-B2RA]). In SH-BDZA, systolic blood pressure was determined on day 34, while in PR-BDZA it was measured preconceptionally, at days 40 and 60. On gestational day 60, plasma creatinine, uricemia, proteinuria, fetal, placental and maternal kidney weight, and the extent of trophoblast invasion were evaluated. RESULTS: The SH-B2RA increased systolic blood pressure on day 34 and reduced trophoblast myometrial invasion, spiral artery remodeling, and placental sufficiency. The PR-B2RA suppressed the normal blood pressure fall observed on days 40 and 60; vascular transformation, placental efficiency, urinary protein, serum creatinine, and uric acid did not differ between the groups. The proportion of all studied mothers with lost fetuses was greater under BDZ infusion than in controls. CONCLUSION: The increased systolic blood pressure and transient reduction in trophoblast invasion and fetal/placental weight in the SH-B2R blockade and the isolated impact on blood pressure in the PR-B2R blockade indicate that bradykinin independently modulates systemic hemodynamics and the uteroplacental unit through cognate vascular and local B2R receptors.
Collapse
Affiliation(s)
- Gloria Valdés
- 1 Centro de Investigaciones Médicas, Facultad de Medicina, Pontificia Universidad Católica, Santiago, Chile
- 2 Departamento de Nefrología, Facultad de Medicina, Pontificia Universidad Católica, Santiago, Chile
| | - Stephanie Acuña
- 1 Centro de Investigaciones Médicas, Facultad de Medicina, Pontificia Universidad Católica, Santiago, Chile
| | - Daniela Schneider
- 1 Centro de Investigaciones Médicas, Facultad de Medicina, Pontificia Universidad Católica, Santiago, Chile
| | - Rita Ortíz
- 1 Centro de Investigaciones Médicas, Facultad de Medicina, Pontificia Universidad Católica, Santiago, Chile
| | - Oslando Padilla
- 3 Departamento de Salud Pública, Facultad de Medicina, Pontificia Universidad Católica, Santiago, Chile
| |
Collapse
|
23
|
de Moraes LV, Barateiro A, Sousa PM, Penha-Gonçalves C. Bradykinin Sequestration by Plasmodium berghei Infected Erythrocytes Conditions B2R Signaling and Parasite Uptake by Fetal Trophoblasts. Front Microbiol 2018; 9:3106. [PMID: 30619185 PMCID: PMC6305765 DOI: 10.3389/fmicb.2018.03106] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2018] [Accepted: 11/30/2018] [Indexed: 12/13/2022] Open
Abstract
Plasmodium infection during pregnancy causes placental malfunction reducing fetus sustainability and leading to abortions, stillbirths, low birth weight or premature delivery. Accumulation of infected erythrocytes (IE) in the placenta is a key factor in placental malaria pathogenesis but the role played by fetal trophoblast that contact maternal blood has been neglected. Here we explore the hypothesis that interactions between Plasmodium-IE and fetal trophoblast cells impact on vasoactive alterations underlying placental dysfunction. We screened gene expression of key mediators in vasoactive pathways. We found that mRNA of bradykinin receptor 2 (B2R) and nitric oxide synthase (eNOS), as well as levels of bradykinin (BK), were decreased in late gestation placentas of pregnant Plasmodium berghei-infected mice. Co-culturing mouse trophoblasts with IE down-regulated B2R transcription and interleukin (IL)-6 secretion in a B2R-signaling dependent manner. IE showed increased levels of surface B2R and enhanced capacity to bind BK. We propose that down-regulation of B2R signaling in the course of IE–trophoblast interactions is due to BK sequestration by IE. In corroboration, levels of BK were lower in infected placentas and the positive correlation of B2R gene expression and fetal weight was disrupted by infection. This indicates that deregulation of the BK-B2R pathway is associated to placental dysfunction provoked by malaria infection. We further found that upon inhibition of B2R signaling, trophoblasts engulf IE to a lesser extent and show reduced production of IL-6. Our data suggest that BK sequestration by P. berghei represents a strategy for the parasite to ameliorate the risk of phagocytic capture by down modulating B2R activation.
Collapse
Affiliation(s)
| | - André Barateiro
- Disease Genetics, Instituto Gulbenkian de Ciência, Oeiras, Portugal
| | | | | |
Collapse
|
24
|
Kumarathasan P, Williams G, Bielecki A, Blais E, Hemmings DG, Smith G, von Dadelszen P, Fisher M, Arbuckle TE, Fraser WD, Vincent R. Characterization of maternal plasma biomarkers associated with delivery of small and large for gestational age infants in the MIREC study cohort. PLoS One 2018; 13:e0204863. [PMID: 30383759 PMCID: PMC6211634 DOI: 10.1371/journal.pone.0204863] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2018] [Accepted: 08/10/2018] [Indexed: 12/21/2022] Open
Abstract
Objective Neonatal morbidity and mortality can be influenced by maternal health status. Information on maternal and fetal biomarkers of adverse health outcomes is limited. This work aims at identifying maternal biomarkers associated with low and high birth weight for gestational age groups. Design and settings Population-based prospective cohort study of the potential adverse health effects of exposure to environmental contaminants on pregnancy and infant health. Methods Third trimester maternal plasma samples (n = 1588) from a pregnancy cohort (Maternal-Infant Research on Environmental Chemicals Study, MIREC) were analyzed for changes in a target spectrum of biomarkers of vascular health (e.g., matrix metalloproteinases MMPs, vascular endothelial cell growth factor VEGF), inflammation (e.g. cellular adhesion molecules CAMs, cytokines, chemokines) by affinity-based multiplex protein array analyses. Multivariate logistic regression analyses were done to examine associations between target plasma biomarkers, maternal-infant characteristics, and birth weight outcomes assessed as small for gestational age (SGA) ≤10th percentile and large for gestational age (LGA) ≥90th percentile groups. Results and outcomes Our results revealed that maternal plasma biomarkers monocyte chemoattractant protein-1 MCP-1 (p<0.05, +ve) and VEGF (p<0.05, -ve) along with parity = 1 (p<0.01, -ve) and gestational hypertension (p<0.05, +ve) were associated with SGA births. Meanwhile, LGA was associated with maternal plasma VEGF (p<0.05, +ve) and MMP-9 (p<0.05, -ve) and gestational hypertension (p<0.01, +ve), pre-pregnancy body mass index (p<0.01, +ve), parity (p<0.05, +ve) and education (p<0.05, -ve). Conclusions Third trimester maternal plasma biomarkers in combination with maternal health and socioeconomic characteristics can be useful in predicting SGA and LGA outcomes. Maternal vascular health and inflammatory status may contribute to both SGA and LGA births through distinct molecular mechanisms.
Collapse
Affiliation(s)
- Premkumari Kumarathasan
- Environmental Health Science and Research Bureau, Healthy Environments and Consumer Safety Branch, Health Canada, Ottawa, Ontario, Canada
- Interdisciplinary School of Health Sciences, Faculty of Health Science, University of Ottawa, Ottawa, Ontario, Canada
- * E-mail:
| | - Gabriela Williams
- Environmental Health Science and Research Bureau, Healthy Environments and Consumer Safety Branch, Health Canada, Ottawa, Ontario, Canada
| | - Agnieszka Bielecki
- Environmental Health Science and Research Bureau, Healthy Environments and Consumer Safety Branch, Health Canada, Ottawa, Ontario, Canada
| | - Erica Blais
- Environmental Health Science and Research Bureau, Healthy Environments and Consumer Safety Branch, Health Canada, Ottawa, Ontario, Canada
| | - Denise G. Hemmings
- Obstetrics and Gynecology, University of Alberta, Edmonton, Alberta, Canada
| | - Graeme Smith
- Obstetrics and Gynecology, Queen’s University, Kingston, Ontario, Canada
| | | | - Mandy Fisher
- Environmental Health Science and Research Bureau, Healthy Environments and Consumer Safety Branch, Health Canada, Ottawa, Ontario, Canada
| | - Tye E. Arbuckle
- Environmental Health Science and Research Bureau, Healthy Environments and Consumer Safety Branch, Health Canada, Ottawa, Ontario, Canada
| | - William D. Fraser
- Centre Hospitalier Universitaire de Sherbrooke, Sherbrooke, Québec, Canada
| | - Renaud Vincent
- Environmental Health Science and Research Bureau, Healthy Environments and Consumer Safety Branch, Health Canada, Ottawa, Ontario, Canada
- Department of Biochemistry, Microbiology and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada
| |
Collapse
|
25
|
Yu W, Gao W, Rong D, Wu Z, Khalil RA. Molecular determinants of microvascular dysfunction in hypertensive pregnancy and preeclampsia. Microcirculation 2018; 26:e12508. [PMID: 30338879 PMCID: PMC6474836 DOI: 10.1111/micc.12508] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2018] [Revised: 10/05/2018] [Accepted: 10/15/2018] [Indexed: 12/16/2022]
Abstract
Preeclampsia is a pregnancy-related disorder characterized by hypertension and often fetal intrauterine growth restriction, but the underlying mechanisms are unclear. Defective placentation and apoptosis of invasive cytotrophoblasts cause inadequate remodeling of spiral arteries, placental ischemia, and reduced uterine perfusion pressure (RUPP). RUPP causes imbalance between the anti-angiogenic factors soluble fms-like tyrosine kinase-1 and soluble endoglin and the pro-angiogenic vascular endothelial growth factor and placental growth factor, and stimulates the release of proinflammatory cytokines, hypoxia-inducible factor, reactive oxygen species, and angiotensin AT1 receptor agonistic autoantibodies. These circulating factors target the vascular endothelium, smooth muscle and various components of the extracellular matrix. Generalized endotheliosis in systemic, renal, cerebral, and hepatic vessels causes decreases in endothelium-derived vasodilators such as nitric oxide, prostacyclin and hyperpolarization factor, and increases in vasoconstrictors such as endothelin-1 and thromboxane A2. Enhanced mechanisms of vascular smooth muscle contraction, such as intracellular Ca2+ , protein kinase C, and Rho-kinase cause further increases in vasoconstriction. Changes in matrix metalloproteinases and extracellular matrix cause inadequate vascular remodeling and increased arterial stiffening, leading to further increases in vascular resistance and hypertension. Therapeutic options are currently limited, but understanding the molecular determinants of microvascular dysfunction could help in the design of new approaches for the prediction and management of preeclampsia.
Collapse
Affiliation(s)
- Wentao Yu
- Vascular Surgery Research Laboratories, Division of Vascular and Endovascular Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Wei Gao
- Vascular Surgery Research Laboratories, Division of Vascular and Endovascular Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Dan Rong
- Vascular Surgery Research Laboratories, Division of Vascular and Endovascular Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Zhixian Wu
- Vascular Surgery Research Laboratories, Division of Vascular and Endovascular Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Raouf A Khalil
- Vascular Surgery Research Laboratories, Division of Vascular and Endovascular Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
| |
Collapse
|
26
|
Nascimento RA, Possomato-Vieira JS, Gonçalves-Rizzi VH, Bonacio GF, Rizzi E, Dias-Junior CA. Hypertension, augmented activity of matrix metalloproteinases-2 and -9 and angiogenic imbalance in hypertensive pregnancy are attenuated by doxycycline. Eur J Pharmacol 2018; 840:60-69. [PMID: 30336141 DOI: 10.1016/j.ejphar.2018.10.017] [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: 07/19/2018] [Revised: 10/10/2018] [Accepted: 10/12/2018] [Indexed: 02/07/2023]
Abstract
Preeclampsia is manifested as maternal hypertension and fetal growth restriction. Matrix metalloproteinases (MMPs) are involved in hypertension and doxycycline reduces blood pressure by inhibition of MMPs. Moreover, excessive levels of MMPs and reduced nitric oxide (NO) bioavailability have been related to preeclampsia. We investigated the involvement of MMPs in hypertension in pregnancy induced by Nω-Nitro-L-arginine methyl ester (L-NAME) in rats. To this end, zimography was performed to evaluate the activity of MMPs -2 and -9 in placenta, uterus and thoracic aorta, and systolic blood pressure, feto-placental development and metabolites of NO were evaluated. Also, plasma antioxidant capacity, plasma levels of soluble fms-like tyrosine kinase-1 (sFlt-1) and placental growth factor (PLGF) were examined. Doxycycline prevented hypertensive pregnancy and significant reductions in number of pups induced by L-NAME. Low NO bioavailability was found in hypertensive pregnant rats treated (or not) with doxycycline. Increased activity of placental MMP-2 and MMP-9 and uterine MMP-2 were attenuated by doxycycline. MMP-2 activity of thoracic aorta showed no change after hypertension. Increases in PLGF with concomitant decreases in sFlt-1 levels were found with doxycycline treatment. Also, plasma antioxidant capacity was improved with doxycycline. Also, elevations of plasma antioxidant capacity were observed in hypertensive rats treated with doxycycline. Therefore, we suggest that L-NAME reduced NO and this triggered the increases in MMP-2 and -9 activities during hypertensive pregnancy. Importantly, increases in MMPs activation and angiogenic imbalance were attenuated by doxycycline and these effects were associated with decreases in systolic blood pressure.
Collapse
Affiliation(s)
- Regina A Nascimento
- Department of Pharmacology, Biosciences Institute of Botucatu, Sao Paulo State University - UNESP, Botucatu, Sao Paulo, Brazil
| | - José S Possomato-Vieira
- Department of Pharmacology, Biosciences Institute of Botucatu, Sao Paulo State University - UNESP, Botucatu, Sao Paulo, Brazil
| | - Victor H Gonçalves-Rizzi
- Department of Pharmacology, Biosciences Institute of Botucatu, Sao Paulo State University - UNESP, Botucatu, Sao Paulo, Brazil
| | - Gisele F Bonacio
- Unit of Biotechnology, University of Ribeirao Preto, UNAERP, Ribeirao Preto, Sao Paulo, Brazil
| | - Elen Rizzi
- Unit of Biotechnology, University of Ribeirao Preto, UNAERP, Ribeirao Preto, Sao Paulo, Brazil
| | - Carlos A Dias-Junior
- Department of Pharmacology, Biosciences Institute of Botucatu, Sao Paulo State University - UNESP, Botucatu, Sao Paulo, Brazil.
| |
Collapse
|
27
|
Lechuga TJ, Bilg AK, Patel BA, Nguyen NA, Qi QR, Chen DB. Estradiol-17β stimulates H 2 S biosynthesis by ER-dependent CBS and CSE transcription in uterine artery smooth muscle cells in vitro. J Cell Physiol 2018; 234:9264-9273. [PMID: 30317617 DOI: 10.1002/jcp.27606] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2018] [Accepted: 09/21/2018] [Indexed: 11/08/2022]
Abstract
Endogenous hydrogen sulfide (H2 S), synthesized by cystathionine β-synthase (CBS) and cystathionine γ-lyase (CSE), is a potent vasodilator that can be stimulated by estradiol-17β (E 2 β) in uterine artery (UA) smooth muscle (UASMC) in vivo; however, the underlying mechanisms are unknown. This study tested a hypothesis that E 2 β stimulates H 2 S biosynthesis by upregulating CBS expression via specific estrogen receptor (ER). Treatment with E 2 β stimulated time- and concentration- dependent CBS and CSE messenger RNA (mRNA) and protein expressions, and H 2 S production in cultured primary UASMC isolated from late pregnant ewes, which were blocked by ICI 182,780. Treatment with specific ERα or ERβ agonist mimicked these E 2 β-stimulated responses, which were blocked by specific ERα or ERβ antagonist. Moreover, E 2 β activated both CBS and CSE promoters and ICI 182,780 blocked the E 2 β-stimulated responses. Thus, E 2 β stimulates H 2 S production by upregulating CBS and CSE expression via specific ER-dependent transcription in UASMC in vitro.
Collapse
Affiliation(s)
- Thomas J Lechuga
- Department of Obstetrics and Gynecology, University of California Irvine, Irvine, California
| | - Amanpreet K Bilg
- Department of Obstetrics and Gynecology, University of California Irvine, Irvine, California
| | - Bansari A Patel
- Department of Obstetrics and Gynecology, University of California Irvine, Irvine, California
| | - Nicole A Nguyen
- Department of Obstetrics and Gynecology, University of California Irvine, Irvine, California
| | - Qian-Rong Qi
- Department of Obstetrics and Gynecology, University of California Irvine, Irvine, California
| | - Dong-Bao Chen
- Department of Obstetrics and Gynecology, University of California Irvine, Irvine, California
| |
Collapse
|
28
|
Reed LC, Estrada SM, Walton RB, Napolitano PG, Ieronimakis N. Evaluating maternal hyperglycemic exposure and fetal placental arterial dysfunction in a dual cotyledon, dual perfusion model. Placenta 2018; 69:109-116. [PMID: 30213479 DOI: 10.1016/j.placenta.2018.07.015] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/06/2017] [Revised: 07/11/2018] [Accepted: 07/27/2018] [Indexed: 01/17/2023]
Abstract
BACKGROUND Gestational diabetes affects almost 1 in 10 pregnancies and is associated with adverse outcomes including fetal demise. Pregnancy complications related to diabetes are attributed to placental vascular dysfunction. With diabetes, maternal hyperglycemia is thought to promote placental vasoconstriction. However, it remains poorly understood if and how hyperglycemia leads to placental vascular dysfunction or if humoral factors related to maternal diabetes are responsible. METHODS AND RESULTS Utilizing a human placenta dual cotyledon, dual perfusion assay we examined the arterial pressure response to the thromboxane mimetic U44619, in cotyledons exposed to normal vs. a hyperglycemic infusion into the intervillous space. Tissues were then analyzed for the activity of key signaling molecules related to vascular tone; eNOS, Akt, PKA and VEGFR2. Results indicate a significant increase in fetal vascular resistance with maternal exposure to hyperglycemia. This response corresponded with a reduction in the phosphorylation of eNOS at Ser1177 and Akt at Thr308. In contrast, VEGFR2 at Tyr1175 and PKA at Thr197 were not different with hyperglycemia. CONCLUSION Reductions of eNOS and Akt phosphorylation at key residues implicated in nitric oxide production suggest that hyperglycemia alters the vasodilatory signaling of placental vessels. In contrast, acute hyperglycemic exposure may not alter vasoconstriction via VEGF and PKA signaling. Altogether our results link hyperglycemic exposure in human placentas to nitric oxide signaling; a mechanisms that may account for the elevations in vascular resistance commonly observed in diabetic pregnancies.
Collapse
Affiliation(s)
- Luckey C Reed
- Department of Obstetrics and Gynecology, Madigan Army Medical Center, Tacoma, WA, USA
| | - Sarah M Estrada
- Department of Obstetrics and Gynecology, Madigan Army Medical Center, Tacoma, WA, USA
| | - Robert B Walton
- Department of Obstetrics and Gynecology, Madigan Army Medical Center, Tacoma, WA, USA
| | - Peter G Napolitano
- Department of Obstetrics and Gynecology, Madigan Army Medical Center, Tacoma, WA, USA
| | - Nicholas Ieronimakis
- Department of Clinical Investigation, Madigan Army Medical Center, Tacoma, WA, USA.
| |
Collapse
|
29
|
Yue Y, Xu D, Wang Y, Wang X, Xia F. Effect of inducible nitric oxide synthase and neuropeptide Y in plasma and placentas from intrahepatic cholestasis of pregnancy. J Obstet Gynaecol Res 2018; 44:1377-1383. [PMID: 29956420 DOI: 10.1111/jog.13681] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2017] [Accepted: 04/18/2018] [Indexed: 12/27/2022]
Abstract
AIM To analyze inducible nitric oxide synthase (iNOS) and neuropeptide Y (NPY) expression in maternal plasma and placentas of human with intrahepatic cholestasis of pregnancy (ICP). METHODS The plasma and placentas were collected from 35 women with normal pregnancies and 33 women with ICP. Enzyme-linked immunosorbent assays were used to investigate maternal plasma iNOS and NPY levels. The mRNA levels and cell-specific localization of iNOS and NPY were determined by quantitative PCR, Western Blotting and immunohistochemical analysis in placentas. RESULTS In human placentas, it revealed iNOS and NPY were mainly localized in syncytiotrophoblast, cytotrophoblastin and vascular endothelium cells using immunohistochemistry analysis. iNOS protein and mRNA expression in ICP maternal plasma and placental tissue were significantly lower than in control groups (P <0.01). In maternal plasma and placentas tissue from ICP patients, a marked up-regulation of NPY protein and mRNA expression were observed (P <0.01). CONCLUSION iNOS and NPY may play a role in the effect of maternal cholestasis on the placenta. The down-regulation of iNOS and up-regulation of NPY in ICP may influence the blood flow of the utero-placental-fetal unit, which may play a significant role in poor fetoplacental vascular perfusion, acute hypoxia and adverse pregnancy outcomes.
Collapse
Affiliation(s)
- Yongfei Yue
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of SooChow University, Suzhou, China.,Department of Obstetrics and Gynecology, Suzhou Municipal Hospital Affiliated to Nanjing Medical University, Suzhou, China
| | - Duo Xu
- Shenzhen Maternity and Child Health Care Hospital, Southern Medical University, Shenzhen, China
| | - Yun Wang
- Department of Obstetrics and Gynecology, Suzhou Municipal Hospital Affiliated to Nanjing Medical University, Suzhou, China
| | - Xiaoyan Wang
- Department of Obstetrics and Gynecology, Suzhou Municipal Hospital Affiliated to Nanjing Medical University, Suzhou, China
| | - Fei Xia
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of SooChow University, Suzhou, China
| |
Collapse
|
30
|
Reyes LM, Davenport MH. Exercise as a therapeutic intervention to optimize fetal weight. Pharmacol Res 2018; 132:160-167. [PMID: 29684673 DOI: 10.1016/j.phrs.2018.04.016] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/15/2017] [Revised: 03/16/2018] [Accepted: 04/18/2018] [Indexed: 12/29/2022]
Abstract
The Developmental Origins of Health and Disease suggest the in utero environment programs offspring obesity and cardiovascular disease. Therefore, there is a need to implement safe therapeutic interventions that do not involve the intake of medications or biological products during pregnancy that can improve maternal and fetal health. Prenatal exercise is established to promote maternal and fetal health. It is generally recommended that women accumulate at least 150 min per week of moderate-intensity exercise. It has been demonstrated that prenatal exercise maintains healthy weight gain and improves maternal glucose control, maternal cardiac autonomic control, placental efficiency (increases angiogenesis, downregulates genes involved in fatty acid transport and insulin transport across the placenta, and upregulates genes involved in amino acid transport across the placenta), and oxidative stress. These adaptations following exercise improve maternal metabolism and provide adequate uteroplacental perfusion. In this review, we will focus on exercise as a therapeutic intervention to optimize fetal weight. It has been established that prenatal exercise does not increase the risk of having a small for gestational age baby. To the contrary, prenatal exercise has been associated with the prevention of excessive fat accumulation in the newborn and the maintenance of fetal muscle mass.
Collapse
Affiliation(s)
- Laura M Reyes
- Program for Pregnancy and Postpartum Health, Faculty of Kinesiology, Sport and Recreation, 1-052 Li Ka Shing Centre for Health Research Innovation, Women and Children's Health Research Institute, Alberta Diabetes Institute, University of Alberta, T6G 2E1, Alberta, Canada.
| | - Margie H Davenport
- Program for Pregnancy and Postpartum Health, Faculty of Kinesiology, Sport and Recreation, 1-052 Li Ka Shing Centre for Health Research Innovation, Women and Children's Health Research Institute, Alberta Diabetes Institute, University of Alberta, T6G 2E1, Alberta, Canada.
| |
Collapse
|
31
|
Reyes LM, Usselman CW, Skow RJ, Charkoudian N, Staab JS, Davenport MH, Steinback CD. Sympathetic neurovascular regulation during pregnancy: A longitudinal case series study. Exp Physiol 2018; 103:318-323. [PMID: 29336094 DOI: 10.1113/ep086771] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2017] [Accepted: 01/09/2018] [Indexed: 01/26/2023]
Abstract
NEW FINDINGS What is the main observation in this case? The main observation of this case report is that during pregnancy there is a progressive sympatho-excitation in basal conditions and under stress, which is offset by a concurrent reduction in neurovascular transduction. Strong correlations between autonomic nervous system activity and sex hormones (oestrogen and progesterone), vasopressin and aldosterone were found. What insights does it reveal? Our findings suggest that hormonal surges might be associated with central sympathetic activation. ABSTRACT The adaptations of sympathetic nerve activity (SNA) during pregnancy remain poorly understood. An increase in blood volume, cardiac output and SNA, with a concomitant drop in total peripheral resistance (TPR), suggest that during pregnancy there is a reduced transduction of SNA into TPR. Most of these findings have originated from cross-sectional studies; thus, we conducted a longitudinal assessment of SNA and TPR in two participants. Measurements were made before pregnancy (early follicular phase), on four occasions during pregnancy and at 2 months postpartum. Mean arterial pressure and cardiac output were used to calculate TPR. The SNA was measured using microneurography (peroneal nerve). There was a gestation-dependent increase in SNA burst frequency (r2 = 0.96, P = 0.009). Neurovascular transduction, however, decreased by 53% in both women. Sympathetic hyperactivity was reversed postpartum, whereas neurovascular transduction remained lower. These longitudinal data highlight the progressive sympatho-excitation of pregnancy, which is offset by a concurrent reduction in neurovascular transduction.
Collapse
Affiliation(s)
- Laura M Reyes
- Program for Pregnancy and Postpartum Health, Faculty of Kinesiology, Sport and Recreation, University of Alberta, Edmonton, AB, Canada.,Physical Activity and Diabetes Laboratory, Faculty of Kinesiology, Sport, and Recreation, University of Alberta, Edmonton, AB, Canada
| | - Charlotte W Usselman
- Program for Pregnancy and Postpartum Health, Faculty of Kinesiology, Sport and Recreation, University of Alberta, Edmonton, AB, Canada.,Physical Activity and Diabetes Laboratory, Faculty of Kinesiology, Sport, and Recreation, University of Alberta, Edmonton, AB, Canada
| | - Rachel J Skow
- Program for Pregnancy and Postpartum Health, Faculty of Kinesiology, Sport and Recreation, University of Alberta, Edmonton, AB, Canada.,Physical Activity and Diabetes Laboratory, Faculty of Kinesiology, Sport, and Recreation, University of Alberta, Edmonton, AB, Canada
| | - Nisha Charkoudian
- US Army Research Institute of Environmental Medicine, Natick, MA, USA
| | - Jeffery S Staab
- US Army Research Institute of Environmental Medicine, Natick, MA, USA
| | - Margie H Davenport
- Program for Pregnancy and Postpartum Health, Faculty of Kinesiology, Sport and Recreation, University of Alberta, Edmonton, AB, Canada.,Physical Activity and Diabetes Laboratory, Faculty of Kinesiology, Sport, and Recreation, University of Alberta, Edmonton, AB, Canada
| | - Craig D Steinback
- Program for Pregnancy and Postpartum Health, Faculty of Kinesiology, Sport and Recreation, University of Alberta, Edmonton, AB, Canada.,Physical Activity and Diabetes Laboratory, Faculty of Kinesiology, Sport, and Recreation, University of Alberta, Edmonton, AB, Canada
| |
Collapse
|
32
|
Valdés G. Preeclampsia and cardiovascular disease: interconnected paths that enable detection of the subclinical stages of obstetric and cardiovascular diseases. Integr Blood Press Control 2017; 10:17-23. [PMID: 28894390 PMCID: PMC5584914 DOI: 10.2147/ibpc.s138383] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
The potent and now longstanding evidence of the association between placentation-related disorders and cardiovascular disease should be translated into clinical practice in order to introduce a preventive approach to future obstetric and cardiovascular diseases. The purpose of this review is to integrate cardiovascular risk/disease and obstetric complications, which are linked by endothelial dysfunction, as windows of opportunity for improving women's health. Questionnaires adaptable to local practices are proposed to incorporate cardiovascular and obstetrical indexes into two stages of a woman's lifetime.
Collapse
Affiliation(s)
- Gloria Valdés
- Department of Nephrology, Facultad de Medicina, Pontificia Universidad Católica, Santiago, Chile
| |
Collapse
|
33
|
Amaral TAS, Ognibene DT, Carvalho LCRM, Rocha APM, Costa CA, Moura RS, Resende AC. Differential responses of mesenteric arterial bed to vasoactive substances in L-NAME-induced preeclampsia: Role of oxidative stress and endothelial dysfunction. Clin Exp Hypertens 2017; 40:126-135. [PMID: 28726518 DOI: 10.1080/10641963.2017.1339073] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
To investigate the systemic and placental oxidant status as well as vascular function in experimental preeclampsia (PE) induced by nitro-L-arginine methyl ester (L-NAME). Fetal parameters and maternal blood pressure, proteinuria, mesenteric arterial bed (MAB) reactivity, and systemic and placental oxidative stress were compared between four groups: pregnant rats receiving L-NAME (60 mg/kg/day, orally) (P + L-NAME) or vehicle (P) from days 13 to 20 of pregnancy and nonpregnant rats receiving L-NAME (NP + L-NAME) or vehicle (NP) during 7 days. L-NAME administration during pregnancy induced some hallmarks of PE, such as hypertension and proteinuria. The P + L-NAME group presented lower weight gain and placental mass as well as reduced number and weight of live fetuses than P group. The vasodilator effect induced by acetylcholine (ACh) and angiotensin II (Ang II) was lower in the perfused MAB from NP + L-NAME and P + L-NAME than in control groups. Otherwise, the nitroglycerine-induced vasodilation and the phenylephrine- and Ang II-induced vasoconstriction were higher in MAB from NP + L-NAME and P + L-NAME groups than in the respective controls. Systemic and placental oxidative damage, assessed by malondialdehyde and carbonyl levels, was increased and activities of the antioxidant enzymes superoxide dismutase and glutathione peroxidase were reduced in P + L-NAME and NP + L-NAME groups compared to controls. The present data suggest that the oxidative stress and reduced bioavailability of nitric oxide may contribute to attenuation of vasodilator responses to ACh and Ang II, and hyperreactivity to Ang II in the mesentery of preeclamptic rat, which may contribute to the increased peripheral vascular resistance and BP, as well as intrauterine growth restriction in L-NAME-induced PE.
Collapse
Affiliation(s)
- Taline A S Amaral
- a Department of Pharmacology , Institute of Biology, State University of Rio de Janeiro , Rio de Janeiro , Brazil
| | - Dayane T Ognibene
- a Department of Pharmacology , Institute of Biology, State University of Rio de Janeiro , Rio de Janeiro , Brazil
| | - Lenize C R M Carvalho
- a Department of Pharmacology , Institute of Biology, State University of Rio de Janeiro , Rio de Janeiro , Brazil
| | - Ana Paula M Rocha
- b Department of Physiological Sciences , Biomedical Institute, Federal University of the State of Rio de Janeiro , Rio de Janeiro , Brazil
| | - Cristiane A Costa
- a Department of Pharmacology , Institute of Biology, State University of Rio de Janeiro , Rio de Janeiro , Brazil
| | - Roberto S Moura
- a Department of Pharmacology , Institute of Biology, State University of Rio de Janeiro , Rio de Janeiro , Brazil
| | - Angela C Resende
- a Department of Pharmacology , Institute of Biology, State University of Rio de Janeiro , Rio de Janeiro , Brazil
| |
Collapse
|
34
|
Chen J, Khalil RA. Matrix Metalloproteinases in Normal Pregnancy and Preeclampsia. PROGRESS IN MOLECULAR BIOLOGY AND TRANSLATIONAL SCIENCE 2017; 148:87-165. [PMID: 28662830 PMCID: PMC5548443 DOI: 10.1016/bs.pmbts.2017.04.001] [Citation(s) in RCA: 169] [Impact Index Per Article: 24.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Normal pregnancy is associated with marked hemodynamic and uterine changes that allow adequate uteroplacental blood flow and uterine expansion for the growing fetus. These pregnancy-associated changes involve significant uteroplacental and vascular remodeling. Matrix metalloproteinases (MMPs) are important regulators of vascular and uterine remodeling. Increases in MMP-2 and MMP-9 have been implicated in vasodilation, placentation, and uterine expansion during normal pregnancy. The increases in MMPs could be induced by the increased production of estrogen and progesterone during pregnancy. MMP expression/activity may be altered during complications of pregnancy. Decreased vascular MMP-2 and MMP-9 may lead to decreased vasodilation, increased vasoconstriction, hypertensive pregnancy, and preeclampsia. Abnormal expression of uteroplacental integrins, cytokines, and MMPs may lead to decreased maternal tolerance, apoptosis of invasive trophoblast cells, inadequate remodeling of spiral arteries, and reduced uterine perfusion pressure (RUPP). RUPP may cause imbalance between the antiangiogenic factors soluble fms-like tyrosine kinase-1 and soluble endoglin and the proangiogenic vascular endothelial growth factor and placental growth factor, or stimulate the release of inflammatory cytokines, hypoxia-inducible factor, reactive oxygen species, and angiotensin AT1 receptor agonistic autoantibodies. These circulating factors could target MMPs in the extracellular matrix as well as endothelial and vascular smooth muscle cells, causing generalized vascular dysfunction, increased vasoconstriction and hypertension in pregnancy. MMP activity can also be altered by endogenous tissue inhibitors of metalloproteinases (TIMPs) and changes in the MMP/TIMP ratio. In addition to their vascular effects, decreases in expression/activity of MMP-2 and MMP-9 in the uterus could impede uterine growth and expansion and lead to premature labor. Understanding the role of MMPs in uteroplacental and vascular remodeling and function could help design new approaches for prediction and management of preeclampsia and premature labor.
Collapse
Affiliation(s)
- Juanjuan Chen
- Vascular Surgery Research Laboratories, Harvard Medical School, Brigham and Women's Hospital, Boston, MA, United States
| | - Raouf A Khalil
- Vascular Surgery Research Laboratories, Harvard Medical School, Brigham and Women's Hospital, Boston, MA, United States.
| |
Collapse
|
35
|
Palei AC, Spradley FT, Granger JP. Role of Nitric Oxide Synthase on Blood Pressure Regulation and Vascular Function in Pregnant Rats on a High-Fat Diet. Am J Hypertens 2017; 30:240-248. [PMID: 28391290 DOI: 10.1093/ajh/hpw153] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2016] [Accepted: 11/16/2016] [Indexed: 01/21/2023] Open
Abstract
BACKGROUND While obesity is a leading risk factor for preeclampsia, the mechanisms whereby obese women are more susceptible to pregnancy-induced hypertension are unclear. As high-fat diet (HFD) is an important contributor to the development of obesity, we tested the hypothesis that pregnant rats on HFD have hypertension and endothelial dysfunction due to reduced nitric oxide synthase (NOS). METHODS Twelve-week-old Sprague-Dawley female rats were fed normal diet (ND, 13% fat kcal) or HFD (40% fat kcal) for 9 weeks. Timed-pregnant rats were then generated and the effect of HFD on mean arterial blood pressure (MAP) and vascular function was assessed on gestational day (GD) 19. RESULTS MAP was not different between HFD and ND pregnant rats. Intriguingly, sensitivity to acetylcholine-induced endothelium-dependent vasorelaxation was enhanced in small mesenteric arteries of HFD dams compared to ND controls (logEC50 -7.9 ± 0.3 vs. -6.7 ± 0.3 M; P < 0.05). Additionally, HFD dams exhibited higher mesenteric artery expression of NOS3 and plasma levels of NO metabolites than ND controls (1738.0 ± 316.4 vs. 1094.0 ± 82.5 pg/mg and 72.5 ± 8.7 vs. 39.7 ± 4.5 µM, respectively; both P < 0.05). Further, to determine the role of NOS in modulating blood pressure in HFD pregnant rats, animals were treated with the nonselective inhibitor Nω-Nitro-l-arginine methyl ester hydrochloride (100 mg/l, drinking water) from GD 14 to 19. It was found that NOS inhibition increased MAP equally in HFD and ND groups. CONCLUSIONS Contrary to our initial hypothesis, HFD dams were normotensive and presented increased endothelial function and NO/NOS3 levels. This enhanced NOS-mediated vascular function does not appear to have a major impact on blood pressure regulation of HFD-fed pregnant rats.
Collapse
Affiliation(s)
- Ana C. Palei
- Department of Physiology and Biophysics, University of Mississippi Medical Center, Jackson, Mississippi, USA
- Cardiovascular-Renal Research Center, University of Mississippi Medical Center, Jackson, Mississippi, USA
| | - Frank T. Spradley
- Department of Physiology and Biophysics, University of Mississippi Medical Center, Jackson, Mississippi, USA
- Cardiovascular-Renal Research Center, University of Mississippi Medical Center, Jackson, Mississippi, USA
- Department of Surgery, University of Mississippi Medical Center, Jackson, Mississippi, USA
| | - Joey P. Granger
- Department of Physiology and Biophysics, University of Mississippi Medical Center, Jackson, Mississippi, USA
- Cardiovascular-Renal Research Center, University of Mississippi Medical Center, Jackson, Mississippi, USA
| |
Collapse
|
36
|
Garg P, Badhwar S, Jaryal AK, Kachhawa G, Deepak KK, Kriplani A. The temporal trend of vascular function in women with gestational diabetes. Vasc Med 2017; 22:96-102. [DOI: 10.1177/1358863x16678479] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Priyanka Garg
- Department of Physiology, All India Institute of Medical Sciences, New Delhi, India
| | - Smriti Badhwar
- Department of Physiology, All India Institute of Medical Sciences, New Delhi, India
| | - Ashok Kumar Jaryal
- Department of Physiology, All India Institute of Medical Sciences, New Delhi, India
| | - Garima Kachhawa
- Department of Obstetrics and Gynecology, All India Institute of Medical Sciences, New Delhi, India
| | - Kishore Kumar Deepak
- Department of Physiology, All India Institute of Medical Sciences, New Delhi, India
| | - Alka Kriplani
- Department of Obstetrics and Gynecology, All India Institute of Medical Sciences, New Delhi, India
| |
Collapse
|
37
|
Zhu M, Ren Z, Possomato-Vieira JS, Khalil RA. Restoring placental growth factor-soluble fms-like tyrosine kinase-1 balance reverses vascular hyper-reactivity and hypertension in pregnancy. Am J Physiol Regul Integr Comp Physiol 2016; 311:R505-21. [PMID: 27280428 PMCID: PMC5142222 DOI: 10.1152/ajpregu.00137.2016] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2016] [Accepted: 06/03/2016] [Indexed: 11/22/2022]
Abstract
Preeclampsia (PE) is a pregnancy-related hypertensive disorder (HTN-Preg) with unclear mechanism. An imbalance between antiangiogenic soluble fms-like tyrosine kinase-1 (sFlt-1) and angiogenic placental growth factor (PlGF) has been observed in PE, but the vascular targets and signaling pathways involved are unclear. We assessed the extent of sFlt-1/PlGF imbalance and vascular dysfunction in a rat model of HTN-Preg produced by reduction of uteroplacental perfusion pressure (RUPP), and tested whether inducing a comparable sFlt-1/PlGF imbalance by infusing sFlt-1 (10 μg·kg(-1)·day(-1)) in day 14 pregnant (Preg) rats cause similar increases in blood pressure (BP) and vascular reactivity. Using these guiding measurements, we then tested whether restoring sFlt-1/PlGF balance by infusing PIGF (20 μg·kg(-1)·day(-1)) in RUPP rats would improve BP and vascular function. On gestational day 19, BP was in Preg+sFlt-1 and RUPP > Preg, and in RUPP+PlGF < RUPP rats. Plasma sFlt-1/PlGF ratio was increased in Preg+sFlt-1, and RUPP and was reduced in RUPP+PlGF rats. In isolated endothelium-intact aorta, carotid, mesenteric, and renal artery, phenylephrine (Phe)- and high KCl-induced contraction was in Preg+sFlt-1 and RUPP > Preg, and in RUPP+PlGF < RUPP. The differences in vascular reactivity to Phe and KCl between groups were less apparent in vessels treated with the nitric oxide synthase (NOS) inhibitor l-NAME or guanylate cyclase inhibitor 1H-[1,2,4]oxadiazolo[4,3-a]quinoxalin-1-one (ODQ) or endothelium-denuded, suggesting changes in endothelial NO-cGMP pathway. In Phe precontracted vessels, ACh-induced relaxation was in Preg+sFlt-1 and RUPP < Preg, and in RUPP+PlGF > RUPP, and was blocked by N(ω)-nitro-l-arginine methyl ester (l-NAME) or ODQ treatment or endothelium removal. Western blots revealed that aortic total endothelial NOS (eNOS) and activated phosphorylated-eNOS were in Preg+sFlt-1 and RUPP < Preg and in RUPP+PlGF > RUPP. ACh-induced vascular nitrate/nitrite production was in Preg+sFlt-1 and RUPP < Preg, and in RUPP+PlGF > RUPP. Vascular relaxation to the exogenous NO donor sodium nitroprusside was not different among groups. Thus, a tilt in the angiogenic balance toward anti-angiogenic sFlt-1 is associated with decreased vascular relaxation and increased vasoconstriction and BP. Restoring the angiogenic/antiangiogenic balance using PlGF enhances endothelial NO-cGMP vascular relaxation and decreases vasoconstriction and BP in HTN-Preg rats and could offer a new approach in the management of PE.
Collapse
Affiliation(s)
- Minglin Zhu
- Vascular Surgery Research Laboratories, Division of Vascular and Endovascular Surgery, Brigham and Women's Hospital, and Harvard Medical School, Boston, Massachusetts
| | - Zongli Ren
- Vascular Surgery Research Laboratories, Division of Vascular and Endovascular Surgery, Brigham and Women's Hospital, and Harvard Medical School, Boston, Massachusetts
| | - José S Possomato-Vieira
- Vascular Surgery Research Laboratories, Division of Vascular and Endovascular Surgery, Brigham and Women's Hospital, and Harvard Medical School, Boston, Massachusetts
| | - Raouf A Khalil
- Vascular Surgery Research Laboratories, Division of Vascular and Endovascular Surgery, Brigham and Women's Hospital, and Harvard Medical School, Boston, Massachusetts
| |
Collapse
|
38
|
Possomato-Vieira JS, Khalil RA. Mechanisms of Endothelial Dysfunction in Hypertensive Pregnancy and Preeclampsia. ADVANCES IN PHARMACOLOGY 2016; 77:361-431. [PMID: 27451103 DOI: 10.1016/bs.apha.2016.04.008] [Citation(s) in RCA: 140] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Preeclampsia is a pregnancy-related disorder characterized by hypertension and could lead to maternal and fetal morbidity and mortality. Although the causative factors and pathophysiological mechanisms are unclear, endothelial dysfunction is a major hallmark of preeclampsia. Clinical tests and experimental research have suggested that generalized endotheliosis in the systemic, renal, cerebral, and hepatic circulation could decrease endothelium-derived vasodilators such as nitric oxide, prostacyclin, and hyperpolarization factor and increase vasoconstrictors such as endothelin-1 and thromboxane A2, leading to increased vasoconstriction, hypertension, and other manifestation of preeclampsia. In search for the upstream mechanisms that could cause endothelial dysfunction, certain genetic, demographic, and environmental risk factors have been suggested to cause abnormal expression of uteroplacental integrins, cytokines, and matrix metalloproteinases, leading to decreased maternal tolerance, apoptosis of invasive trophoblast cells, inadequate spiral arteries remodeling, reduced uterine perfusion pressure (RUPP), and placental ischemia/hypoxia. RUPP may cause imbalance between the antiangiogenic factors soluble fms-like tyrosine kinase-1 and soluble endoglin and the proangiogenic factors vascular endothelial growth factor and placental growth factor, or stimulate the release of other circulating bioactive factors such as inflammatory cytokines, hypoxia-inducible factor-1, reactive oxygen species, and angiotensin AT1 receptor agonistic autoantibodies. These circulating factors could then target endothelial cells and cause generalized endothelial dysfunction. Therapeutic options are currently limited, but understanding the factors involved in endothelial dysfunction could help design new approaches for prediction and management of preeclampsia.
Collapse
Affiliation(s)
- J S Possomato-Vieira
- Vascular Surgery Research Laboratories, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, United States
| | - R A Khalil
- Vascular Surgery Research Laboratories, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, United States.
| |
Collapse
|
39
|
Camarena Pulido EE, García Benavides L, Panduro Barón JG, Pascoe Gonzalez S, Madrigal Saray AJ, García Padilla FE, Totsuka Sutto SE. Efficacy of L-arginine for preventing preeclampsia in high-risk pregnancies: A double-blind, randomized, clinical trial. Hypertens Pregnancy 2016; 35:217-25. [DOI: 10.3109/10641955.2015.1137586] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
|
40
|
Broegger T, Andersson KE, Aalkjaer C, Forman A, Boedtkjer DB. Sensitivity to the thromboxane A 2 analog U46619 varies with inner diameter in human stem villous arteries. Placenta 2016; 39:111-5. [DOI: 10.1016/j.placenta.2016.01.017] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/27/2015] [Revised: 01/18/2016] [Accepted: 01/20/2016] [Indexed: 11/29/2022]
|
41
|
Kumarathasan P, Vincent R, Bielecki A, Blais E, Blank K, Das D, Karthikeyan S, Cakmak S, Fisher M, Arbuckle T, Fraser W. Infant birth weight and third trimester maternal plasma markers of vascular integrity: the MIREC study. Biomarkers 2016; 21:257-66. [PMID: 26900787 PMCID: PMC4841026 DOI: 10.3109/1354750x.2015.1134663] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Background: There is paucity of information on mechanisms constituting adverse birth outcomes. We assessed here the relationship between vascular integrity and adverse birth effects. Methods and results: Third trimester maternal plasma (n = 144) from the Maternal-Infant Research on Environmental Chemicals Study (MIREC) was analysed for vascular, inflammatory and oxidative stress markers by HPLC-fluorescence, protein array and EIA method. Analysis of the <25th and >75th percentile birth weight subgroups revealed markers associated with birth weight (ETs, MMP-9, VEGF, and 8-isoPGF-2α) and gestational age (ET-1, MMP-2, and VEGF). Conclusions: Mechanistic insights into adverse birth outcome pathways can be achieved by integrating information on multiple biomarkers, physiology using systems biology approach.
Collapse
Affiliation(s)
- Premkumari Kumarathasan
- a Analytical Biochemistry and Proteomics Laboratory, Environmental Health Science and Research Bureau, Healthy Environments and Consumer Safety Branch, Health Canada , Ottawa , ON , Canada
| | - Renaud Vincent
- b Inhalation Toxicology Laboratory, Environmental Health Science and Research Bureau, Healthy Environments and Consumer Safety Branch, Health Canada , Ottawa , ON , Canada
| | - Agnieszka Bielecki
- a Analytical Biochemistry and Proteomics Laboratory, Environmental Health Science and Research Bureau, Healthy Environments and Consumer Safety Branch, Health Canada , Ottawa , ON , Canada
| | - Erica Blais
- a Analytical Biochemistry and Proteomics Laboratory, Environmental Health Science and Research Bureau, Healthy Environments and Consumer Safety Branch, Health Canada , Ottawa , ON , Canada
| | - Katrin Blank
- a Analytical Biochemistry and Proteomics Laboratory, Environmental Health Science and Research Bureau, Healthy Environments and Consumer Safety Branch, Health Canada , Ottawa , ON , Canada
| | - Dharani Das
- a Analytical Biochemistry and Proteomics Laboratory, Environmental Health Science and Research Bureau, Healthy Environments and Consumer Safety Branch, Health Canada , Ottawa , ON , Canada
| | - Subramanian Karthikeyan
- b Inhalation Toxicology Laboratory, Environmental Health Science and Research Bureau, Healthy Environments and Consumer Safety Branch, Health Canada , Ottawa , ON , Canada
| | - Sabit Cakmak
- c Population Studies Division, Environmental Health Science and Research Bureau, Healthy Environments and Consumer Safety Branch, Health Canada , Ottawa , ON , Canada , and
| | - Mandy Fisher
- c Population Studies Division, Environmental Health Science and Research Bureau, Healthy Environments and Consumer Safety Branch, Health Canada , Ottawa , ON , Canada , and
| | - Tye Arbuckle
- c Population Studies Division, Environmental Health Science and Research Bureau, Healthy Environments and Consumer Safety Branch, Health Canada , Ottawa , ON , Canada , and
| | - William Fraser
- d Department of Obstetrics and Gynecology , University of Sherbrooke , Sherbrooke , QC , Canada
| |
Collapse
|
42
|
Utero-placental cellular and nuclear expression of bradykinin B2 receptors in normal and preeclamptic pregnancies. Pregnancy Hypertens 2016; 6:30-7. [PMID: 26955769 DOI: 10.1016/j.preghy.2016.01.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2015] [Accepted: 01/19/2016] [Indexed: 11/20/2022]
Abstract
The bradykinin type 2 receptor (B2R), main effector of the pleiotropic kallikrein-kinin system (KKS), has been localized in the key sites related to placentation in human, rat and guinea pig utero-placental units. The present study was directed to characterize the content, the cellular and subcellular localization of B2R in the villi and basal plate of placentas from normal and preeclamptic pregnancies by means of western blotting, immunohistochemistry and immunoelectron microscopy. The protein content of B2R was demonstrated in both placental zones. The villous placenta of normal and preeclamptic pregnancies expressed B2R in syncytiotrophoblast and fetal endothelium; the basal plate displayed B2R in extravillous trophoblasts and decidual cells. Lastly, immunogold electron microscopy revealed B2R in fetal endothelium, syncytiotrophoblast, extravillous cytotrophoblasts and decidual cells; in all cell types the receptor was mainly located in the cytosol and nucleus. The protein content of placental homogenates and the immunoreactivity in the different cells types did not differ between both study groups; however the abundance of nuclear immunogold B2R positive beads in extravillous trophoblasts was greater in the normal than in the preeclamptic placentas. The purpose of describing nuclear B2R in the utero-placental unit, and its increment in normal extravillous trophoblasts, is to stimulate the study of the functional pathways that may be relevant to understand the local role of the B2R in normal and preeclamptic gestation.
Collapse
|
43
|
Mata KM, Li W, Reslan OM, Siddiqui WT, Opsasnick LA, Khalil RA. Adaptive increases in expression and vasodilator activity of estrogen receptor subtypes in a blood vessel-specific pattern during pregnancy. Am J Physiol Heart Circ Physiol 2015; 309:H1679-96. [PMID: 26408543 DOI: 10.1152/ajpheart.00532.2015] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/07/2015] [Accepted: 09/09/2015] [Indexed: 11/22/2022]
Abstract
Normal pregnancy is associated with adaptive hemodynamic, hormonal, and vascular changes, and estrogen (E2) may promote vasodilation during pregnancy; however, the specific E2 receptor (ER) subtype, post-ER signaling mechanism, and vascular bed involved are unclear. We tested whether pregnancy-associated vascular adaptations involve changes in the expression/distribution/activity of distinct ER subtypes in a blood vessel-specific manner. Blood pressure (BP) and plasma E2 were measured in virgin and pregnant (day 19) rats, and the thoracic aorta, carotid artery, mesenteric artery, and renal artery were isolated for measurements of ERα, ERβ, and G protein-coupled receptor 30 [G protein-coupled ER (GPER)] expression and tissue distribution in parallel with relaxation responses to E2 (all ERs) and the specific ER agonist 4,4',4″-(4-propyl-[1H]-pyrazole-1,3,5-triyl)-tris-phenol (PPT; ERα), diarylpropionitrile (DPN; ERβ), and G1 (GPER). BP was slightly lower and plasma E2 was higher in pregnant versus virgin rats. Western blots revealed increased ERα and ERβ in the aorta and mesenteric artery and GPER in the aorta of pregnant versus virgin rats. Immunohistochemistry revealed that the increases in ERs were mainly in the intima and media. In phenylephrine-precontracted vessels, E2 and PPT caused relaxation that was greater in the aorta and mesenteric artery but similar in the carotid and renal artery of pregnant versus virgin rats. DPN- and G1-induced relaxation was greater in the mesenteric and renal artery than in the aorta and carotid artery, and aortic relaxation to G1 was greater in pregnant versus virgin rats. The nitric oxide synthase inhibitor N(ω)-nitro-l-arginine methyl ester with or without the cyclooxygenase inhibitor indomethacin with or without the EDHF blocker tetraethylammonium or endothelium removal reduced E2, PPT, and G1-induced relaxation in the aorta of pregnant rats, suggesting an endothelium-dependent mechanism, but did not affect E2-, PPT-, DPN-, or G1-induced relaxation in other vessels, suggesting endothelium-independent mechanisms. E2, PPT, DPN, and G1 caused relaxation of Ca(2+) entry-dependent KCl contraction, and the effect of PPT was greater in the mesenteric artery of pregnant versus virgin rats. Thus, during pregnancy, an increase in ERα expression in endothelial and vascular smooth muscle layers of the aorta and mesenteric artery is associated with increased ERα-mediated relaxation via endothelium-derived vasodilators and inhibition of Ca(2+) entry into vascular smooth muscle, supporting a role of aortic and mesenteric arterial ERα in pregnancy-associated vasodilation. GPER may contribute to aortic relaxation while enhanced ERβ expression could mediate other genomic vascular effects during pregnancy.
Collapse
Affiliation(s)
- Karina M Mata
- Vascular Surgery Research Laboratory, Division of Vascular and Endovascular Surgery, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts
| | - Wei Li
- Vascular Surgery Research Laboratory, Division of Vascular and Endovascular Surgery, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts
| | - Ossama M Reslan
- Vascular Surgery Research Laboratory, Division of Vascular and Endovascular Surgery, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts
| | - Waleed T Siddiqui
- Vascular Surgery Research Laboratory, Division of Vascular and Endovascular Surgery, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts
| | - Lauren A Opsasnick
- Vascular Surgery Research Laboratory, Division of Vascular and Endovascular Surgery, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts
| | - Raouf A Khalil
- Vascular Surgery Research Laboratory, Division of Vascular and Endovascular Surgery, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts
| |
Collapse
|
44
|
Lashley CJ, Supik DA, Atkinson JT, Murphy RJ, O'Hagan KP. Effect of pregnancy on the uterine vasoconstrictor response to exercise in rats. Physiol Rep 2015; 3:3/3/e12337. [PMID: 25804264 PMCID: PMC4393170 DOI: 10.14814/phy2.12337] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
A major maternal adaptation in pregnancy is the large increase in uteroplacental blood flow that supplies the growing fetus with oxygen and nutrients. The impact of gestation on the dynamic uterine vasoconstrictor response to exercise in the rat, a common model for pathophysiological disorders in pregnancy remains unknown. We hypothesized that rats exhibit a robust uterine vasoconstrictor response to acute exercise that is attenuated in late pregnancy. Pregnant (P, N = 12) and nonpregnant (NP, N = 8) rats were instrumented chronically with a ultrasonic transit-time flowprobe and carotid arterial catheter to directly measure uterine artery blood flow (UtBF) and blood pressure (BP), respectively, at day 20 of gestation for 5 min of treadmill exercise (7 m/min; 6% grade). Preexercise UtBF [P, 2.1 (SD1.6) vs. NP, 0.5 (SD0.3) mL/min P < 0.01) and uterine artery conductance (UtC) [P, 2.1(SD1.7) vs. NP, 0.4 (SD0.2) mL/min × mmHg−1 × 10−2, P < 0.01] were higher in pregnant rats, whereas preexercise BP was lower in the pregnant rats [P, 111 (SD13) vs. NP, 126 (SD13) mmHg, P = 0.02]. Preexercise heart rate was similar [P, 457 (SD30) vs. NP, 454 (SD42), P = 0.3]. Exercise initiated rapid and sustained decreases in UtBF [Δ−47% (SD12)] and UtC [Δ−49% (SD12)] that were attenuated in the pregnant rats [UtBF, Δ−25% (SD20) and UtC, Δ−30% (SD20), P = 0.02]. The BP and heart rate responses to exercise were unaffected in late pregnancy (interaction term, P = 0.3). In rats, dynamic exercise induces a uterine vasoconstrictor response that is blunted during late gestation, a response that we observed previously in pregnant rabbits.
Collapse
Affiliation(s)
- Christopher J Lashley
- Program in Biomedical Sciences, College of Health Sciences, Midwestern University, Downers Grove, Illinois, USA Department of Physiology, Chicago College of Osteopathic Medicine, Midwestern University, Downers Grove, Illinois, USA
| | - David A Supik
- Program in Biomedical Sciences, College of Health Sciences, Midwestern University, Downers Grove, Illinois, USA
| | - James T Atkinson
- Program in Biomedical Sciences, College of Health Sciences, Midwestern University, Downers Grove, Illinois, USA
| | - Robert J Murphy
- Department of Physiology, Chicago College of Osteopathic Medicine, Midwestern University, Downers Grove, Illinois, USA
| | - Kathleen P O'Hagan
- Department of Physiology, Chicago College of Osteopathic Medicine, Midwestern University, Downers Grove, Illinois, USA
| |
Collapse
|
45
|
Vignini A, Cecati M, Nanetti L, Raffaelli F, Ciavattini A, Giannubilo SR, Mazzanti L, Saccucci F, Emanuelli M, Tranquilli AL. Placental expression of endothelial and inducible nitric oxide synthase and NO metabolism in gestational hypertension: a case-control study. J Matern Fetal Neonatal Med 2015; 29:576-81. [PMID: 25690025 DOI: 10.3109/14767058.2015.1011615] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
OBJECTIVE Hypertension is one of the most common medical disorders in pregnancy and a role of nitric oxide (NO) metabolism has been described. Thus, the present work aimed at determining placental gene expression of eNOS and iNOS, to measure NO and ONOO(-) levels in patients with gestational hypertension (GH). METHODS Fifteen patients with GH and 15 healthy pregnant controls were enrolled in the study. Placental tissue was taken immediately after delivery and was stored at -80 °C until analysis. A piece of frozen tissue was homogenized in the appropriate buffer. Total RNA was extracted and was reverse transcribed to obtain complementary DNA that was used for real-time PCR for iNOS and eNOS expression, whereas NO and ONOO(-) production were measured by commercially available kits. RESULTS Placental eNOS and iNOS mRNA levels were significantly reduced in GH when compared to controls. NO and ONOO(-) production were both significantly higher in GH than controls. CONCLUSIONS The reduced eNOS and iNOS gene expression in women with GH reinforces the hypothesis that the mechanisms involving NO pathways, may promote oxidative damage, by contributing to the reduced blood flow and increased resistance in the feto-maternal circulation and suggests the use of NO modulators as useful tools in GH management.
Collapse
Affiliation(s)
| | - Monia Cecati
- a Section of Biochemistry, Biology and Physics and
| | | | | | - Andrea Ciavattini
- b Section of Woman Health Science, Department of Clinical Sciences, Faculty of Medicine , Polytechnic University of Marche , Ancona , Italy
| | - Stefano R Giannubilo
- b Section of Woman Health Science, Department of Clinical Sciences, Faculty of Medicine , Polytechnic University of Marche , Ancona , Italy
| | | | | | - Monica Emanuelli
- b Section of Woman Health Science, Department of Clinical Sciences, Faculty of Medicine , Polytechnic University of Marche , Ancona , Italy
| | | |
Collapse
|
46
|
Karamali M, Asemi Z. The Beneficial Effects of Calcium Supplementation Plus Low-Dose Aspirin on Metabolic Profiles in Pregnant Women at Risk for Pre-Eclampsia: Randomized, Double-Blind, Placebo-Controlled Trial. WOMEN’S HEALTH BULLETIN 2014. [DOI: 10.17795/whb-23258] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
|
47
|
Boeldt DS, Grummer MA, Magness RR, Bird IM. Altered VEGF-stimulated Ca2+ signaling in part underlies pregnancy-adapted eNOS activity in UAEC. J Endocrinol 2014; 223:1-11. [PMID: 25063757 PMCID: PMC4161637 DOI: 10.1530/joe-14-0252] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
In pregnancy, the uterine vasculature undergoes dramatic vasodilatory adaptations. Previously, vascular endothelial growth factor (VEGF) has been shown to stimulate endothelial nitric oxide synthase (eNOS) in uterine artery endothelial cells (UAECs) derived from pregnant ewes to a greater extent than those from non-pregnant ewes in a manner not fully explained by changes in the phosphorylation of eNOS. In this study, we used Fura-2 Ca(2+) imaging and arginine-to-citrulline conversion eNOS activity assays to assess the importance of VEGF-stimulated Ca(2+) responses in pregnancy-related changes in NO production in UAEC. In this study, we show that pregnancy-induced changes in VEGF-stimulated Ca(2+) responses could account in part for the greater capacity of VEGF to stimulate eNOS in UAECs from pregnant versus non-pregnant animals. VEGF-stimulated Ca(2+) responses in UAECs from pregnant and non-pregnant animals were mediated through VEGF receptor 2 and were detected in roughly 15% of all cells. There were no pregnancy-specific differences in area under the curve or peak height. UAECs from pregnant animals were more consistent in the time to response initiation, had a larger component of extracellular Ca(2+) entry, and were more sensitive to a submaximal dose of VEGF. In UAECs from pregnant and non-pregnant animals Ca(2+) responses and eNOS activation were sensitive to the phospholipase C/inositol 1,4,5-trisphosphate pathway inhibitors 2-aminoethoxydiphenylborane and U73122. Thus, changes in VEGF-stimulated [Ca(2+)]i are necessary for eNOS activation in UAECs, and pregnancy-induced changes in Ca(2+) responses could also in part explain the pregnancy-specific adaptive increase in eNOS activity in UAECs.
Collapse
Affiliation(s)
- Derek S Boeldt
- Perinatal Research LaboratoriesDepartment of Obstetrics and Gynecology, School Medicine and Public Health, University of Wisconsin-Madison, 7E Meriter Hospital/Park, 202 South Park Street, Madison, Wisconsin 53715, USADepartment of PediatricsSchool Medicine and Public HealthDepartment of Animal SciencesUniversity of Wisconsin-Madison, Madison, Wisconsin 53715, USA
| | - Mary A Grummer
- Perinatal Research LaboratoriesDepartment of Obstetrics and Gynecology, School Medicine and Public Health, University of Wisconsin-Madison, 7E Meriter Hospital/Park, 202 South Park Street, Madison, Wisconsin 53715, USADepartment of PediatricsSchool Medicine and Public HealthDepartment of Animal SciencesUniversity of Wisconsin-Madison, Madison, Wisconsin 53715, USA
| | - Ronald R Magness
- Perinatal Research LaboratoriesDepartment of Obstetrics and Gynecology, School Medicine and Public Health, University of Wisconsin-Madison, 7E Meriter Hospital/Park, 202 South Park Street, Madison, Wisconsin 53715, USADepartment of PediatricsSchool Medicine and Public HealthDepartment of Animal SciencesUniversity of Wisconsin-Madison, Madison, Wisconsin 53715, USA Perinatal Research LaboratoriesDepartment of Obstetrics and Gynecology, School Medicine and Public Health, University of Wisconsin-Madison, 7E Meriter Hospital/Park, 202 South Park Street, Madison, Wisconsin 53715, USADepartment of PediatricsSchool Medicine and Public HealthDepartment of Animal SciencesUniversity of Wisconsin-Madison, Madison, Wisconsin 53715, USA Perinatal Research LaboratoriesDepartment of Obstetrics and Gynecology, School Medicine and Public Health, University of Wisconsin-Madison, 7E Meriter Hospital/Park, 202 South Park Street, Madison, Wisconsin 53715, USADepartment of PediatricsSchool Medicine and Public HealthDepartment of Animal SciencesUniversity of Wisconsin-Madison, Madison, Wisconsin 53715, USA
| | - Ian M Bird
- Perinatal Research LaboratoriesDepartment of Obstetrics and Gynecology, School Medicine and Public Health, University of Wisconsin-Madison, 7E Meriter Hospital/Park, 202 South Park Street, Madison, Wisconsin 53715, USADepartment of PediatricsSchool Medicine and Public HealthDepartment of Animal SciencesUniversity of Wisconsin-Madison, Madison, Wisconsin 53715, USA Perinatal Research LaboratoriesDepartment of Obstetrics and Gynecology, School Medicine and Public Health, University of Wisconsin-Madison, 7E Meriter Hospital/Park, 202 South Park Street, Madison, Wisconsin 53715, USADepartment of PediatricsSchool Medicine and Public HealthDepartment of Animal SciencesUniversity of Wisconsin-Madison, Madison, Wisconsin 53715, USA
| |
Collapse
|
48
|
Köstlin N, Kugel H, Spring B, Leiber A, Marmé A, Henes M, Rieber N, Hartl D, Poets CF, Gille C. Granulocytic myeloid derived suppressor cells expand in human pregnancy and modulate T-cell responses. Eur J Immunol 2014; 44:2582-91. [PMID: 24894988 DOI: 10.1002/eji.201344200] [Citation(s) in RCA: 116] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2013] [Revised: 04/24/2014] [Accepted: 05/28/2014] [Indexed: 01/19/2023]
Abstract
Immune tolerance toward the semiallogeneic fetus plays a crucial role in the maintenance of pregnancy. Myeloid-derived suppressor cells (MDSCs) are innate immune cells characterized by their ability to modulate T-cell responses. Recently, we showed that MDSCs accumulate in cord blood of healthy newborns, yet their role in materno-fetal tolerance remained elusive. In the present study, we demonstrate that MDSCs with a granulocytic phenotype (GR-MDSCs) are highly increased in the peripheral blood of healthy pregnant women during all stages of pregnancy compared with nonpregnant controls, whereas numbers of monocytic MDSCs were unchanged. GR-MDSCs expressed the effector enzymes arginase-I and iNOS, produced high amounts of ROS and efficiently suppressed T-cell proliferation. After parturition, GR-MDSCs decreased within a few days. In combination, our results show that GR-MDSCs expand in normal human pregnancy and may indicate a role for MDSCs in materno-fetal tolerance.
Collapse
Affiliation(s)
- Natascha Köstlin
- Department of Neonatology, Tuebingen University Children's Hospital, Tuebingen, Germany
| | | | | | | | | | | | | | | | | | | |
Collapse
|
49
|
Pregnancy normalized familial hyperaldosteronism type I: a novel role for progesterone? J Hum Hypertens 2014; 29:138-9. [DOI: 10.1038/jhh.2014.49] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
50
|
Valdés G, Schneider D, Corthorn J, Ortíz R, Acuña S, Padilla O. Administration of angiotensin II and a bradykinin B2 receptor blocker in midpregnancy impairs gestational outcome in guinea pigs. Reprod Biol Endocrinol 2014; 12:49. [PMID: 24893657 PMCID: PMC4062647 DOI: 10.1186/1477-7827-12-49] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/19/2014] [Accepted: 05/25/2014] [Indexed: 12/28/2022] Open
Abstract
BACKGROUND The opposing renin-angiotensin system (RAS) and kallikrein-kinin system (KKS) are upregulated in pregnancy and localize in the utero-placental unit. To test their participation as counter-regulators, circulating angiotensin II (AII) was exogenously elevated and the bradykinin B2 receptor (B2R) was antagonized in pregnant guinea-pigs. We hypothesized that disrupting the RAS/KKS balance during the period of maximal trophoblast invasion and placental development would provoke increased blood pressure, defective trophoblast invasion and a preeclampsia-like syndrome. METHODS Pregnant guinea-pigs received subcutaneous infusions of AII (200 μg/kg/day), the B2R antagonist Bradyzide (BDZ; 62.5 microg/kg/day), or both (AII + BDZ) from gestational day 20 to 34. Non-pregnant cycling animals were included in a control group (C NP) or received AII + BDZ (AII + BDZ NP) during 14 days. Systolic blood pressure was determined during cycle in C NP, and on the last day of infusion, and 6 and 26 days thereafter in the remaining groups. Twenty six days after the infusions blood and urine were extracted, fetuses, placentas and kidneys were weighed, and trophoblast invasion of spiral arteries was defined in the utero-placental units by immunocytochemistry. RESULTS Systolic blood pressure transiently rose in a subgroup of the pregnant females while receiving AII + BDZ infusion, but not in AII + BDZ NP. Plasma creatinine was higher in AII- and BDZ-treated dams, but no proteinuria or hyperuricemia were observed. Kidney weight increased in AII + BDZ-treated pregnant and non-pregnant females. Aborted and dead fetuses were increased in dams that received AII and AII + BDZ. The fetal/placental weight ratio was reduced in litters of AII + BDZ-treated mothers. All groups that received interventions during pregnancy showed reduced replacement of endothelial cells by extravillous trophoblasts in lateral and myometrial spiral arteries. CONCLUSIONS The acute effects on fetal viability, and the persistently impaired renal/placental sufficiency and incomplete arterial remodeling implicate the RAS and KKS in the adaptations in pregnancy. The results partially confirm our hypothesis, as a preeclampsia-like syndrome was not induced. We demonstrate the feasibility of characterizing systemic and local modifications in pregnant guinea-pig, supporting its use to study normal placentation and related disorders.
Collapse
Affiliation(s)
- Gloria Valdés
- Centro de Investigaciones Médicas, Escuela de Medicina, Pontificia Universidad Católica, Santiago, Chile
- Departamento de Nefrología, Escuela de Medicina, Pontificia Universidad Católica, Santiago, Chile
| | - Daniela Schneider
- Centro de Investigaciones Médicas, Escuela de Medicina, Pontificia Universidad Católica, Santiago, Chile
| | - Jenny Corthorn
- Centro de Investigaciones Médicas, Escuela de Medicina, Pontificia Universidad Católica, Santiago, Chile
- Departamento de Nefrología, Escuela de Medicina, Pontificia Universidad Católica, Santiago, Chile
| | - Rita Ortíz
- Centro de Investigaciones Médicas, Escuela de Medicina, Pontificia Universidad Católica, Santiago, Chile
| | - Stephanie Acuña
- Centro de Investigaciones Médicas, Escuela de Medicina, Pontificia Universidad Católica, Santiago, Chile
| | - Oslando Padilla
- Departamento de Salud Pública, Escuela de Medicina, Pontificia Universidad Católica, Santiago, Chile
| |
Collapse
|