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1.
Z Geburtshilfe Neonatol ; 228(1): 57-64, 2024 Feb.
Article in English | MEDLINE | ID: mdl-38330960

ABSTRACT

INTRODUCTION: SARS-CoV-2 is a viral disease with potentially devastating effects. Observational studies of pregnant women infected with SARS-CoV-2 report an increased risk for FGR. This study utilizes data from a prospective SARS-CoV-2 registry in pregnancy, investigating the progression of fetuses to fetal growth restriction (FGR) at birth following maternal SARS-CoV-2 and evaluating the hypothesis of whether the percentage of SGA at birth is increased after maternal SARS-CoV-2 taking into account the time interval between infection and birth. MATERIALS & METHODS: CRONOS is a prospective German registry enrolling pregnant women with confirmed SARS-CoV-2 infection during their pregnancy. SARS-CoV-2 symptoms, pregnancy- and delivery-specific information were recorded. The data evaluated in this study range from March 2020 until August 2021. Women with SARS-CoV-2 were divided into three groups according to the time of infection/symptoms to delivery: Group I<2 weeks, Group II 2-4 weeks, and Group III>4 weeks. FGR was defined as estimated and/or birth weight<10% ile, appropriate for gestational age (AGA) was within 10 and 90%ile, and large for gestational age (LGA) was defined as fetal or neonatal weight>90%ile. RESULTS: Data for a total of 2,650 SARS-CoV-2-positive pregnant women were available. The analysis was restricted to symptomatic cases that delivered after 24+0 weeks of gestation. Excluding those cases with missing values for estimated fetal weight at time of infection and/or birth weight centile, 900 datasets remained for analyses. Group I consisted of 551 women, Group II of 112 women, and Group III of 237 women. The percentage of changes from AGA to FGR did not differ between groups. However, there was a significantly higher rate of large for gestational age (LGA) newborns at the time of birth compared to the time of SARS-CoV-2 infection in Group III (p=0.0024), respectively. CONCLUSION: FGR rates did not differ between symptomatic COVID infections occurring within 2 weeks and>4 weeks before birth. On the contrary, it presented a significant increase in LGA pregnancies in Group III. However, in this study population, an increase in the percentage of LGA may be attributed to pandemic measures and a reduction in daily activity.


Subject(s)
COVID-19 , SARS-CoV-2 , Pregnancy , Female , Humans , Infant, Newborn , Birth Weight , Prospective Studies , COVID-19/epidemiology , Fetal Development , Fetal Growth Retardation/diagnosis , Fetal Growth Retardation/epidemiology , Gestational Age
2.
Obstet Gynecol Int ; 2024: 8712553, 2024.
Article in English | MEDLINE | ID: mdl-38344327

ABSTRACT

Objective: To test the hypothesis that PROMPT reduces permanent brachial plexus palsy and perineal tears. Design: A prospective/retrospective cohort study. Setting. Hanover Medical School, Germany. Population/Sample. A self-selected population. Methods: The training period is from November 9th, 2017, until December 31st, 2019; control: January 1st, 2004, until November 8th, 2017. Main Outcome Measures. Shoulder dystocia, nonpermanent and permanent brachial plexus injuries (BPIs), perineal tears III°/IV°, manual manoeuvres, and asphyxia. Results: There was a total of 22,640 births, and shoulder dystocia increased from 48/18,031 (0.27%) to 23/4,609 (0.50%) ((p=0.017), OR: 1.88, 95% CI: (1.14; 3.09)), whereas BPIs decreased from 7/48 (14.6%) to 1/23 (4.3%) (p=0.261). There was 1/7 (14.2%) of permanent BPI before and 0/1 (0%) case after. Perinatal asphyxia increased from 3/48 (6.3%) to 4/23 (17.4%) (p=0.23). However, adverse outcomes after one year were zero. McRoberts' manoeuvre increased from 37/48 (77.1%) to 23/23 (100%) ((p=0.013), OR: 1.62, 95% CI: (1.33; 1.98)), and internal rotation manoeuvres and manual extraction of the posterior arm from 6/48 (12.5%) to 5/23 (21.7%) (p=0.319). Episiotomies decreased from 5,267/18,031 (29.2%) to 836/4,609 (18.1%) ((p < 0.001), OR: 0.54, 95% CI: (0.49, 0.58)), whereas perineal tears III°/IV° associated with shoulder dystocia increased from 1/48 (2.1%) to 1/23 (4.8%) (p=0.546). Vaginal operative deliveries remained constant (6.5% vs. 7%). Conclusions: PROMPT significantly improves the management of shoulder dystocia and decreases permanent brachial plexus injuries but not perineal tears III°/IV°.

3.
Arch Gynecol Obstet ; 2024 Feb 09.
Article in English | MEDLINE | ID: mdl-38334820

ABSTRACT

INTRODUCTION: At term, about 3-4% of all singleton pregnancies present as breech. MRI-based pelvimetry is a valuable tool to support selection of adequate candidates for a trial-of-labor in women expecting term breech babies. Shared decision-making is playing an increasingly important role in obstetrics. Since the divergent existing knowledge of breech term delivery needs to be discussed with the pregnant woman, we examined the influence of MRI results on the shared decision-making process in women with term breech presentation. METHODS: Between 08/2021 and 12/2022, anamnestic and clinical parameters were collected from singleton pregnancies expecting term breech babies resulting in birth at the Hanover Medical School. After information, written consent and inclusion, clinical parameters, the course of birth and the maternal and fetal outcome were collected retrospectively. 32 women participated in a postpartum questionnaire study on inquiry. The subsequent acquisition of information and the arguments in the decision-making process were determined. In addition, the sense of security and self-determination was asked both before and during birth. RESULTS: 50% of the respondents had not decided for a mode of delivery before having MRI pelvimetry. After imaging and information, about the own pelvic dimensions and predictors for a successful vaginal birth, 80% of this subgroup decided to give birth vaginally. Over 40% of the collective descripted that they made a decision based on the result of MRI pelvimetry. None of the women felt to be insecure after having talked about the MRI results. The elective cesarean section group and the group of those who delivered vaginally were approximately equally highly satisfied with their feeling of self-determination of the birth mode. Overall, the study population had a very positive birth experience. The group of women who had delivered by elective cesarean showed a wider range in their assessment and appeared to perceive the experience more negative than the group of women who had a vaginal birth or emergency cesarean. Fetal and maternal outcomes did not differ between the groups. DISCUSSION: MRT pelvimetry measurements can be used as a predictor for a successful vaginal breech delivery. The additional information obtained from the MRI measurements can be used in the shared decision-making process to decide more easily on the mode of delivery while improving women's awareness and safety. A balanced education on rare and frequently adverse events of vaginal delivery and cesarean section and patient expectations about labor processes must be taken into account.

4.
J Clin Med ; 12(19)2023 Sep 27.
Article in English | MEDLINE | ID: mdl-37834871

ABSTRACT

Hospitalization during pregnancy often produces psychosocial distress for pregnant women. In this study, 3D ultrasound and recreational therapy were compared to the standard treatment for their influence on depressive symptoms and anxiety. In this prospective one-year intervention study, women who were admitted to the hospital for any pregnancy complication, other than psychiatric, were included. A control group, with standard clinical treatment, and two intervention groups, both additionally receiving either 3D ultrasound or recreational therapy, were established. Psychological well-being was assessed at defined times by the PHQ-health-questionnaire. A total of 169/211 women were included: control group n = 79, 3D ultrasound group n = 43, and crochet group n = 83. A higher than estimated underlying depression was seen for all women on admission. The intervention groups showed less depression (p = 0.02762). No difference was seen between the intervention groups (p = 0.23029). Anxiety decreased throughout intervention, but not significantly. On admission, all women showed similar results of underlying depression, indicating that hospitalization itself already causes mild psychological stress. Both interventions decreased depressive symptoms. Intervention with either recreational therapy or 3D ultrasound can prevent the development of mild and major depression and decrease anxiety disorders, and therefore has a positive effect on well-being during hospitalization. These results emphasize the need to implement forms of interventions to improve the well-being of women, as this might improve pregnancy and neonatal outcome.

5.
Obes Facts ; 16(6): 576-587, 2023.
Article in English | MEDLINE | ID: mdl-37647859

ABSTRACT

INTRODUCTION: Maternal body mass index and gestational weight gain (GWG) are important factors for maternal and neonatal health. The objective of this study was to assess women's knowledge and examine adherence to the Institute of Medicine (IOM) criteria for weight gain during pregnancy by evaluating the information received from obstetricians and women's knowledge about GWG. METHODS: This is an analytical semi-longitudinal observational study. Weight data from a nonconsecutive convenience sample of 389 women who gave birth at the Hannover Medical School in the period from August 2020 to July 2021 were taken from their maternal records. Immediately after giving birth, the whole collective (n = 389) was asked to participate in a questionnaire study including questions that were taken from the EMat Health Survey inquiring about their knowledge and received information about GWG and about their eating behavior. Here, a subset of 202 women participated. RESULTS: Sixty-five percent of the participants who answered the questionnaire reported that they had not been informed by their obstetrician about GWG recommendations. Additionally, a minority of women knew the correct IOM GWG category based on their pre-pregnancy weight. Meeting the IOM GWG guidelines did not depend on whether or not women received GWG recommendations or knew about the correct GWG category. The majority of women were not concerned about gaining too much weight during pregnancy. 20.7% of all women participating in the study were affected by obesity pre-pregnancy. According to the IOM criteria for GWG, 50.4% gained too much weight. The proportion of women exceeding IOM recommendations was highest in women with pre-pregnancy overweight and obesity (67%). DISCUSSION: Weight gain outside of the IOM recommendations is widespread in our survey. Information received and knowledge about GWG recommendations were inadequate in our sample. Considering the fact that GWG outside recommended ranges can contribute to short- and long-term health complications, especially when a woman enters pregnancy already with overweight or obesity, identifying ways of achieving a healthier GWG is warranted.


Subject(s)
Overweight , Pregnancy Complications , Infant, Newborn , Pregnancy , Female , Humans , Weight Gain , Obesity , Postpartum Period , Surveys and Questionnaires , Pregnancy Complications/diagnosis , Body Mass Index , Pregnancy Outcome
6.
Pediatr Res ; 93(4): 810-817, 2023 03.
Article in English | MEDLINE | ID: mdl-35732823

ABSTRACT

BACKGROUND: Successful pregnancies are nowadays possible after kidney transplantation but are associated with a higher incidence of maternal and fetal complications. Immunosuppressive therapy causes cardiovascular side effects but must be maintained during pregnancy. Little is known about the consequences of maternal kidney transplantation on offspring's endothelial health. Endothelial colony forming cells (ECFCs) represent a highly proliferative subtype of endothelial progenitor cells and are crucial for vascular homeostasis, repair and neovascularization. Therefore, we investigated whether maternal kidney transplantation affects fetal ECFCs' characteristics. METHODS: ECFCs were isolated from umbilical cord blood of uncomplicated and post-kidney-transplant pregnancies and analyzed for their functional abilities with proliferation, cell migration, centrosome orientation and angiogenesis assays. Further, ECFCs from uncomplicated pregnancies were exposed to either umbilical cord serum from uncomplicated or post-kidney-transplant pregnancies. RESULTS: Post-kidney-transplant ECFCs showed significantly less proliferation, less migration and less angiogenesis compared to control ECFCs. The presence of post-kidney-transplant umbilical cord serum led to similar functional aberrations of ECFCs from uncomplicated pregnancies. CONCLUSIONS: These pilot data demonstrate differences in ECFCs' biological characteristics in offspring of women after kidney transplantation. Further studies are needed to monitor offspring's long-term cardiovascular development and to assess possible causal relationships with immunosuppressants, uremia and maternal cardiovascular alterations. IMPACT: Pregnancy after kidney transplantation has become more common in the past years but is associated with higher complications for mother and offspring. Little is known of the impact of maternal kidney transplantation and the mandatory immunosuppressive therapy on offspring vascular development. In this study we are the first to address and detect an impairment of endothelial progenitor cell function in offspring of kidney-transplanted mothers. Serum from post-transplant pregnancies also causes negative effects on ECFCs' function. Clinical studies should focus on long-term monitoring of offspring's cardiovascular health.


Subject(s)
Endothelial Progenitor Cells , Kidney Transplantation , Pregnancy , Female , Humans , Kidney Transplantation/adverse effects , Fetus , Cell Movement , Fetal Blood , Cells, Cultured , Neovascularization, Physiologic , Cell Proliferation
7.
Microcirculation ; 30(1): e12794, 2023 Jan.
Article in English | MEDLINE | ID: mdl-36484638

ABSTRACT

OBJECTIVE: The long-term survival of kidney transplant patients has substantially improved. However, there is a higher risk for cardiovascular events after transplantation, partly due to immunosuppression. A diminished number of endothelial progenitor cells (EPCs), which play an important role in angiogenesis and the repair of endothelial damage, are associated with an increased cardiovascular risk. The aim of this study was to evaluate whether kidney transplantation affects EPCs in women. METHODS: Twenty-four healthy women and 22 female kidney transplant recipients were recruited. The ratio of angiogenic and non-angiogenic circulating progenitor cells (CPCs) was determined by multicolor flow cytometry and related to clinical parameters. Cord blood-derived endothelial colony-forming cells (ECFCs), a proliferative subgroup of endothelial progenitor cells, were treated with pooled sera from transplant patients or healthy controls and tested for their functional integrity using in vitro models. RESULTS: Kidney transplant recipients displayed a reduced ratio of angiogenic and non-angiogenic CPCs compared to healthy controls. Differences were especially pronounced in premenopausal women. Exposure to sera of transplanted women led to a significant impairment of ECFC proliferation, migration, and angiogenesis ability. CONCLUSIONS: Alterations of EPC populations may contribute to the higher cardiovascular risks after organ transplantation and should be considered in therapeutic strategies.


Subject(s)
Endothelial Progenitor Cells , Kidney Transplantation , Humans , Female , Neovascularization, Physiologic , Cells, Cultured
8.
Am J Obstet Gynecol ; 228(1): 84.e1-84.e12, 2023 01.
Article in English | MEDLINE | ID: mdl-35931132

ABSTRACT

BACKGROUND: Fetal growth restriction is strongly associated with impaired placentation and abnormal uteroplacental blood flow. Nitric oxide donors such as pentaerythritol tetranitrate are strong vasodilators and protect the endothelium. Recently, we demonstrated in a randomized controlled pilot study a 38% relative risk reduction for the development of fetal growth restriction or perinatal death following administration of pentaerythritol tetranitrate to pregnant women at risk, identified by impaired uterine perfusion at midgestation. Results of this monocenter study prompted the hypothesis that pentaerythritol tetranitrate might have an effect in pregnancies with compromised placental function as a secondary prophylaxis. OBJECTIVE: This study aimed to test the hypothesis that the nitric oxide donor pentaerythritol tetranitrate reduces fetal growth restriction and perinatal death in pregnant women with impaired placental perfusion at midgestation in a multicenter trial. STUDY DESIGN: In this multicenter, randomized, double-blind, placebo-controlled trial, 2 parallel groups of pregnant women presenting with a mean uterine artery pulsatility index >95th percentile at 19+0 to 22+6 weeks of gestation were randomized to 50-mg Pentalong or placebo twice daily. Participants were assigned to high- or low-risk groups according to their medical history before randomization was performed block-wise with a fixed block length stratified by center and risk group. The primary efficacy endpoint was the composite outcome of perinatal death or development of fetal growth restriction. Secondary endpoints were neonatal and maternal outcome parameters. RESULTS: Between August 2017 and March 2020, 317 participants were included in the study and 307 were analyzed. The cumulative incidence of the primary outcome was 41.1% in the pentaerythritol tetranitrate group and 45.5% in the placebo group (unadjusted relative risk, 0.90; 95% confidence interval, 0.69-1.17; adjusted relative risk, 0.90; 95% confidence interval, 0.69-1.17; P=.43). Secondary outcomes such as preterm birth (unadjusted relative risk, 0.73; 95% confidence interval, 0.56-0.94; adjusted relative risk, 0.73; 95% confidence interval, 0.56-0.94; P=.01) and pregnancy-induced hypertension (unadjusted relative risk, 0.65; 95% confidence interval, 0.46-0.93; adjusted relative risk, 0.65; 95% confidence interval, 0.46-0.92; P=0.01) were reduced. CONCLUSION: Our study failed to show an impact of pentaerythritol tetranitrate on the development of fetal growth restriction and perinatal death in pregnant women with impaired uterine perfusion at midgestation. Pentaerythritol tetranitrate significantly reduced secondary outcome parameters such as the incidence of preterm birth and pregnancy-induced hypertension in these pregnancies.


Subject(s)
Hypertension, Pregnancy-Induced , Pentaerythritol Tetranitrate , Perinatal Death , Premature Birth , Pregnancy , Female , Infant, Newborn , Humans , Pentaerythritol Tetranitrate/therapeutic use , Fetal Growth Retardation/etiology , Placenta/blood supply , Placentation , Perfusion/adverse effects
9.
FASEB J ; 36(7): e22379, 2022 07.
Article in English | MEDLINE | ID: mdl-35648632

ABSTRACT

Preeclampsia, a pregnancy-related hypertensive disorder, is associated with endothelial dysfunction and increased cardiovascular risk of the offspring in adulthood. In preeclampsia, endothelial colony-forming cells (ECFC) are reduced in number and function. Recently, we have shown that miR-1270, which is involved in cancer in vitro proliferation, migration, and tumor progression, is downregulated in fetal ECFC from preeclamptic pregnancies. We now hypothesize that miR-1270 dysregulation contributes to vascular endothelial dysfunction occurring after preeclampsia via ATM (ataxia telangiectasia mutated) overexpression, the key kinase of DNA damage repair. Here, we show that miR-1270 silencing in normal ECFC and downregulation in preeclamptic ECFC are accompanied by an increase in the expression levels of ATM. Furthermore, ATM activation correlates with upregulated tyrosine kinase Src leading to phosphorylation and internalization of VE-cadherin (vascular endothelial-cadherin) which subsequently compromises endothelial barrier permeability and morphodynamic cell parameters. Treatment with specific ATM inhibitors reveals a novel role of ATM upstream of tyrosine kinase Src activation. Subsequently, Src phosphorylation and internalization of VE-cadherin compromise endothelial barrier permeability. Our findings suggest that downregulation of miR-1270 contributes to impaired ECFC function via the associated ATM overexpression, which further identifies ATM as a novel and critical factor for ECFC defects in preeclampsia. Our study provides new insights into the understanding of ECFC impairment associated with cardiovascular risk in preeclamptic offspring and identifies potential novel therapeutic targets.


Subject(s)
Ataxia Telangiectasia Mutated Proteins , Endothelial Progenitor Cells , MicroRNAs , Pre-Eclampsia , Antigens, CD , Ataxia Telangiectasia Mutated Proteins/genetics , Ataxia Telangiectasia Mutated Proteins/metabolism , Cadherins/metabolism , Down-Regulation , Endothelial Progenitor Cells/metabolism , Female , Humans , MicroRNAs/genetics , Pre-Eclampsia/genetics , Pre-Eclampsia/pathology , Pregnancy , Protein-Tyrosine Kinases/metabolism
10.
Arch Gynecol Obstet ; 305(6): 1499-1505, 2022 06.
Article in English | MEDLINE | ID: mdl-35218367

ABSTRACT

PURPOSE: Emergency training using simulation is a method to increase patient safety in the delivery room. The effect of individual training concepts is critically discussed and requires evaluation. A possible influence factor of success can be the perceived reality of the participants. The objective of this study was to investigate whether the presence in a simulated emergency caesarean section improves subjective effect of the training and evaluation. METHODS: In this observation study, professionals took part in simulated emergency caesarean sections to improve workflow and non-technical skills. Presence was measured by means of a validated questionnaire, effects and evaluation by means of a newly created questionnaire directly after the training. Primary outcome was a correlation between presence and assumed effect of training and evaluation. RESULTS: 106 participants (70% of course participants) answered the questionnaires. Reliability of the presence scale was good (Cronbach's alpha 0.72). The presence correlated significantly with all evaluated items of non-technical skills and evaluation of the course. The factor "mutual support" showed a high effect size (0.639), the overall evaluation of the course (0.395) and the willingness to participate again (0.350) a medium effect. There were no differences between the professional groups. CONCLUSION: The presence correlates with the assumed training objectives and evaluation of the course. If training is not successful, it is one factor that needs to be improved.


Subject(s)
Cesarean Section , Simulation Training , Clinical Competence , Cross-Sectional Studies , Female , Humans , Pregnancy , Reproducibility of Results , Surveys and Questionnaires
11.
J Perinat Med ; 50(2): 167-175, 2022 Feb 23.
Article in English | MEDLINE | ID: mdl-34695308

ABSTRACT

OBJECTIVES: Maternal obesity during pregnancy is associated with adverse intrauterine events and fetal outcomes and may increase the risk of obesity and metabolic disease development in offspring. Higher parity, regardless of socioeconomic status, is associated with increased maternal body mass index (BMI). In this study, we examined the relationship between parity, maternal obesity, and fetal outcomes in a large sample of mother-neonate pairs from Lower Saxony, Germany. METHODS: This retrospective cohort study examined pseudonymized data of a non-selected singleton cohort from Lower Saxony's statewide quality assurance initiative. 448,963 cases were included. Newborn outcomes were assessed in relation to maternal BMI and parity. RESULTS: Maternal obesity was associated with an increased risk of placental insufficiency, chorioamnionitis, and fetal distress while giving birth. This effect was present across all parity groups. Fetal presentation did not differ between BMI groups, except for the increased risk of high longitudinal position and shoulder dystocia in obese women. Maternal obesity was also associated with an increased risk of premature birth, low arterial cord blood pH and low 5-min APGAR scores. CONCLUSIONS: Maternal obesity increases the risk of adverse neonatal outcomes. There is a positive correlation between parity and increased maternal BMI. Weight-dependent fetal risk factors increase with parity, while parity-dependent outcomes occur less frequently in multipara. Prevention and intervention programs for women planning to become pregnant can be promising measures to reduce pregnancy and birth complications.


Subject(s)
Obesity, Maternal , Pregnancy Complications , Body Mass Index , Female , Humans , Infant, Newborn , Obesity, Maternal/complications , Obesity, Maternal/epidemiology , Parity , Placenta , Pregnancy , Pregnancy Complications/epidemiology , Pregnancy Complications/etiology , Pregnancy Outcome/epidemiology , Retrospective Studies
12.
Geburtshilfe Frauenheilkd ; 81(10): 1154-1160, 2021 Oct.
Article in English | MEDLINE | ID: mdl-34629494

ABSTRACT

Objective The LACC (Laparoscopic Approach to Cervical Cancer) study revealed advantages in terms of overall survival and relapse risk favouring abdominal radical hysterectomy over the laparoscopic procedure. The present paper will compare the two surgical techniques from the economic point of view based on a process cost calculation. Material/Methods A retrospective cost analysis of all radical hysterectomies from the year 2018 was done at the Hanover University Medical School based on the bottoms-up method and guided by the clinical treatment pathway. Result Of 51 primary cases treated, 19 patients underwent radical hysterectomies, of which 8 were performed using the abdominal technique and 11 as endoscopic surgeries. 89.4% of the cancers were FIGO IB1 carcinomas. The total cost of a laparoscopic radical hysterectomy with an average hospital stay of 4.6 days came to € 2512.34, compared to an abdominal radical hysterectomy at € 2586.78 with an average hospital stay of 7.6 days. The greatest cost factor in which the laparoscopic method exceeded abdominal radical hysterectomy was the surgical procedure itself (€ 1836.75 vs. € 1411.21). Personnel represented the largest cost item in the surgical theatre (59%), so that surgery time was a significant multiplying factor. Average surgical time required for abdominal radical hysterectomy was 154 minutes, whereby the laparoscopic procedure required an average of 220.1 minutes. Inpatient care in the abdominal radical procedure cases was more costly by € 499.98 due to the longer hospitalization and additional medication required. Profit levels, including the DRG revenues, were higher with the abdominal method than with the laparoscopic method by € 186.21 despite longer hospital stays. Conclusion The present paper shows slightly greater profitability for the abdominal radical hysterectomy. On the other hand, this method entails longer hospitalization and a higher level of personnel deployment. Adequate occupancy management could make up for the revenue shortfall observed with the laparoscopic method.

13.
Int J Mol Sci ; 22(18)2021 Sep 08.
Article in English | MEDLINE | ID: mdl-34575860

ABSTRACT

Immunosuppressants are a mandatory therapy for transplant patients to avoid rejection of the transplanted organ by the immune system. However, there are several known side effects, including alterations of the vasculature, which involve a higher occurrence of cardiovascular events. While the effects of the commonly applied immunosuppressive drugs cyclosporine A (CsA) and tacrolimus (Tac) on mature endothelial cells have been addressed in several studies, we focused our research on the unexplored effects of CsA and Tac on endothelial colony-forming cells (ECFCs), a subgroup of endothelial progenitor cells, which play an important role in vascular repair and angiogenesis. We hypothesized that CsA and Tac induce functional defects and activate an inflammatory cascade via NF-κB signaling in ECFCs. ECFCs were incubated with different doses (0.01 µM-10 µM) of CsA or Tac. ECFC function was determined using in vitro models. The expression of inflammatory cytokines and adhesion molecules was explored by quantitative real-time PCR and flow cytometry. NF-κB subunit modification was assessed by immunoblot and immunofluorescence. CsA and Tac significantly impaired ECFC function, including proliferation, migration, and tube formation. TNF-α, IL-6, VCAM, and ICAM mRNA expression, as well as PECAM and VCAM surface expression, were enhanced. Furthermore, CsA and Tac led to NF-κB p65 subunit phosphorylation and nuclear translocation. Pharmacological inhibition of NF-κB by parthenolide diminished CsA- and Tac-mediated proinflammatory effects. The data of functional impairment and activation of inflammatory signals provide new insight into mechanisms associated with CsA and Tac and cardiovascular risk in transplant patients.


Subject(s)
Cyclosporine/pharmacology , Endothelial Cells/drug effects , Inflammation/drug therapy , Stem Cells/drug effects , Tacrolimus/pharmacology , Cardiovascular Diseases/drug therapy , Cardiovascular Diseases/immunology , Cell Movement , Cell Proliferation , Chemotaxis , Cytokines/metabolism , Endothelial Progenitor Cells/drug effects , Humans , Immunosuppressive Agents , Intercellular Adhesion Molecule-1/metabolism , Interleukin-6/metabolism , NF-kappa B/metabolism , NF-kappa B p50 Subunit/metabolism , Neovascularization, Pathologic , Sesquiterpenes/pharmacology , Signal Transduction , Tumor Necrosis Factor-alpha/metabolism , Vascular Cell Adhesion Molecule-1/metabolism
14.
Int J Mol Sci ; 22(10)2021 May 18.
Article in English | MEDLINE | ID: mdl-34070163

ABSTRACT

Preeclampsia is associated with an increased cardiovascular morbidity of mother and offspring, thus contributing to a substantial burden in women and children's health. It has been proven that endothelial progenitor cell (EPC) numbers and functional characteristics are impaired in cardiovascular disease and preeclampsia, although causative factors for the latter have remained elusive. MicroRNA (miRNA) modifications are a potential mechanism through which exposure to an altered environment translates into the development of chronic disease. In this study, we examined whether development of preeclampsia corresponds to alterations of miRNAs in maternal- and cord-blood-derived EPC. To test this end, we analyzed maternal and neonatal miRNAs via RNA sequencing from endothelial cells of preeclamptic and healthy controls in different cell culture passages. We were able to demonstrate differentially represented miRNAs in all groups. Hsa-miR-1270 showed significantly different levels in cord blood EPC from preeclampsia versus control and was negatively correlated with mRNA levels of its predicted targets ANGPTL7 and TFRC. Transfection with an hsa-miR-1270 inhibitor decreased the tube formation capacity and chemotactic motility but did not change proliferation in vitro. Target predictions and gene set enrichment analyses identified alternative splicing as a significantly enriched pathway for hsa-miR-1270. The top miRNAs in three other groups were predicted to target transcriptional and developmental pathways. Here, we showed for the first time significantly different levels of miRNAs and differently represented mRNA levels of predicted target genes in EPC derived from preeclampsia. Understanding the effects of preeclampsia on the epigenetic mechanisms of EPC will be crucial and may provide initial insights for further evaluation of the benefits of therapies targeting this cell population.


Subject(s)
Endothelial Progenitor Cells/metabolism , MicroRNAs/genetics , Pre-Eclampsia/genetics , Adult , Angiopoietin-Like Protein 7 , Angiopoietin-like Proteins/genetics , Antigens, CD/genetics , Case-Control Studies , Cell Proliferation , Cells, Cultured , Chemotaxis , Female , Fetal Blood/cytology , Fetal Blood/metabolism , Gene Expression Profiling , Humans , Infant, Newborn , Male , MicroRNAs/blood , MicroRNAs/metabolism , Neovascularization, Pathologic/genetics , Pre-Eclampsia/blood , Pre-Eclampsia/metabolism , Pregnancy , RNA, Messenger/blood , RNA, Messenger/genetics , RNA, Messenger/metabolism , Receptors, Transferrin/genetics , Young Adult
15.
J Perinat Med ; 49(4): 460-467, 2021 May 26.
Article in English | MEDLINE | ID: mdl-33554575

ABSTRACT

OBJECTIVES: During the last decade obesity has been continuously rising in adults in industrial countries. The increased occurrence of perinatal complications caused by maternal obesity poses a major challenge for obstetricians during pregnancy and childbirth. This study aims to examine the association between parity, pregnancy, birth risks, and body mass index (BMI) of women from Lower Saxony, Germany. METHODS: This retrospective cohort study examined pseudonymized data of a non-selected singleton cohort from Lower Saxony's statewide quality assurance initiative. Mothers were categorized according to BMI as normal weight (18.5 to <25 kg/m2) or obese (≥30 kg/m2). RESULTS: Most of the mothers in this study population were either in their first (33.9%) or second pregnancy (43.4%). The mean age of women giving birth for the first time was 28.3 years. Maternal age increased with increasing parity. The proportion of pregnant women with a BMI over 30 was 11% in primiparous women, 14.3% in second para, 17.3% in third para and 24.1% in fourth para or more women. Increasing parity was positively correlated with the incidence of classical diseases related to obesity, namely diabetes mellitus, gestational diabetes, hypertension, pregnancy-related hypertension and urinary protein excretion. An increased risk of primary or secondary cesarean section was observed in the obese women, particularly during the first deliveries. CONCLUSIONS: There is a positive and significant correlation between parity and increased maternal BMI. The highest weight gain happens during the first pregnancy. The rate of operative deliveries and complications during delivery is increased in obese pregnant women.


Subject(s)
Cesarean Section/statistics & numerical data , Obesity , Parity , Pregnancy Complications , Adult , Body Mass Index , Diabetes Mellitus/diagnosis , Diabetes Mellitus/epidemiology , Female , Germany/epidemiology , Gestational Weight Gain , Humans , Hypertension/diagnosis , Hypertension/epidemiology , Obesity/complications , Obesity/diagnosis , Obesity/epidemiology , Perinatal Care/methods , Perinatal Care/statistics & numerical data , Pregnancy , Pregnancy Complications/diagnosis , Pregnancy Complications/epidemiology , Pregnancy Outcome/epidemiology , Reproductive History , Risk Assessment , Risk Factors
16.
J Clin Med ; 10(2)2021 Jan 06.
Article in English | MEDLINE | ID: mdl-33419165

ABSTRACT

Endothelial dysfunction is a primary feature of several cardiovascular diseases. Endothelial colony-forming cells (ECFCs) represent a highly proliferative subtype of endothelial progenitor cells (EPCs), which are involved in neovascularization and vascular repair. Statins are known to improve the outcome of cardiovascular diseases via pleiotropic effects. We hypothesized that treatment with the 3-hydroxy-3-methyl-glutaryl-coenzyme A (HMG-CoA) reductase inhibitor pravastatin increases ECFCs' functional capacities and regulates the expression of proteins which modulate endothelial health in a favourable manner. Umbilical cord blood derived ECFCs were incubated with different concentrations of pravastatin with or without mevalonate, a key intermediate in cholesterol synthesis. Functional capacities such as migration, proliferation and tube formation were addressed in corresponding in vitro assays. mRNA and protein levels or phosphorylation of protein kinase B (AKT), endothelial nitric oxide synthase (eNOS), heme oxygenase-1 (HO-1), vascular endothelial growth factor A (VEGF-A), placental growth factor (PlGF), soluble fms-like tyrosine kinase-1 (sFlt-1) and endoglin (Eng) were analyzed by real time PCR or immunoblot, respectively. Proliferation, migration and tube formation of ECFCs were enhanced after pravastatin treatment, and AKT- and eNOS-phosphorylation were augmented. Further, expression levels of HO-1, VEGF-A and PlGF were increased, whereas expression levels of sFlt-1 and Eng were decreased. Pravastatin induced effects were reversible by the addition of mevalonate. Pravastatin induces beneficial effects on ECFC function, angiogenic signaling and protein expression. These effects may contribute to understand the pleiotropic function of statins as well as to provide a promising option to improve ECFCs' condition in cell therapy in order to ameliorate endothelial dysfunction.

17.
Geburtshilfe Frauenheilkd ; 80(10): 1041-1047, 2020 Oct.
Article in English | MEDLINE | ID: mdl-33012836

ABSTRACT

Introduction Fetal breech presentation at terms occurs in 3 - 6% of pregnancies. External cephalic version can reduce the number of cesarean sections and vaginal breech deliveries. Different approaches are used to carry out external cephalic version. This study looked at the different approaches used in Germany and compared the approach used with the recommendations given in German and international guidelines. Material and Methods An anonymized online survey of 234 hospitals in Germany was carried out in 2018. In addition to asking about hospital structures, questions also focused on how external version was carried out in practice (preparations, tocolysis, anesthetics, etc.), on relative and absolute contraindications and on the success rate. Results 37.2% of the hospitals approached for the survey participated in the study. Of these, 98.8% performed external version procedures. The majority of participating hospitals were university hospitals (26.4%) and maximum care hospitals (35.6%) with an average number of more than 2000 births per year (60.9%). External cephalic version is the preferred (61.7%) obstetrical procedure to deal with breech presentation, rather than vaginal breech birth or primary cesarean section. 45.8% of respondents carry out external version procedures on an outpatient basis, and 42.1% of hospitals perform the procedure as an inpatient intervention, especially from the 37th week of gestation. Prior to performing an external version procedure, 21.6% of surveyed institutions carry out a vaginal examination to evaluate possible fixation of the fetal rump. 95.5% of institutions used fenoterol for tocolytic therapy; the majority using it for continuous tocolysis (70.2%). 1 - 3 attempts at external version (8.4%) were usually carried out by a specific senior physician. In most cases, no analgesics were administered. The reported rate of emergency cesarean sections was very low. The most common indication for emergency C-section was pathological CTG (56,7%). The assessment of relative and absolute contraindications varied, depending on the surveyed hospital. 67.5% asked patients to empty their bladders before carrying out external version, while 10.8% carried out external version when the bladder was filled. The reported success rate was more than 45%. After successful version, only 14.8% of hospitals arranged for patients to wear an abdominal binder. For 32.4%, the decision to apply an abdominal binder was taken on a case-by-case basis. Conclusion The approach used in Germany to carry out external cephalic version is based on the (expired) German guideline on breech presentation. Based on the evidence obtained, a number of individual recommendations should be re-evaluated. More recent international guidelines could be useful to update the standard procedure.

18.
Cardiovasc Ther ; 2020: 4018478, 2020.
Article in English | MEDLINE | ID: mdl-33042222

ABSTRACT

BACKGROUND: Endothelial progenitor cells (EPCs) are recruited to injured endothelium and contribute to its regeneration. There is evidence that moderate ethanol consumption prevents the development and progression of atherosclerosis in a variety of in vitro and in vivo models and increases the mobilization of progenitor cells. Furthermore, there are studies that identified ethanol at low concentration as a therapeutic tool to mobilize progenitor cells in peripheral blood. At the same time, the cell number of EPCs represents a close link to cardiovascular system constitution and function and contributes to cardiovascular risk. The aim of this study was to evaluate the effect of low dose ethanol on typical features of endothelial colony-forming cells (ECFCs), a proliferative subtype of EPCs. METHODS AND RESULTS: We tested whether ethanol impacts the functional abilities of ECFC (e.g., migration, tube formation, and proliferation) using in vitro assays, the intercommunication of ECFC by exploring cell surface molecules by flow cytometry, and the expression of (anti-)angiogenic molecules by ELISA. Low concentrations of ethanol concentration promoted migration, proliferation, and tubule formation of ECFC. The expression of the cell surface marker VE-cadherin, a protein which plays an important role in cell-cell interaction, was enhanced by ethanol, while (anti-)angiogenic molecule expression was not impacted. CONCLUSION: Ethanol at moderate concentrations increases the angiogenic abilities of endothelial progenitor cells thus possibly contributing to vasoprotection.


Subject(s)
Angiogenesis Inducing Agents/pharmacology , Cell Movement/drug effects , Cell Proliferation/drug effects , Endothelial Progenitor Cells/drug effects , Ethanol/pharmacology , Neovascularization, Physiologic/drug effects , Antigens, CD/metabolism , Cadherins/metabolism , Cells, Cultured , Dose-Response Relationship, Drug , Endothelial Progenitor Cells/metabolism , Humans
19.
Arch Gynecol Obstet ; 302(3): 585-593, 2020 09.
Article in English | MEDLINE | ID: mdl-32661755

ABSTRACT

PUPROSE: An emergency caesarean section is a potentially life-threatening situation both for the mother and the newborn. Non-technical skills can be improved by simulation training and are necessary to manage this urgent situation successfully. The objective of this study was to investigate, if training of emergency caesarean section can be transferred into daily work to improve the outcome parameters pH an APGAR of the newborn. METHODS: In this pre-post study, 141 professionals took part in a training for emergency caesarean section. Participants received a questionnaire, based on the tools "Training Evaluation Inventory" and "Transfer Climate Questionnaire" 1 year after training. Outcome data of the newborn were collected from the hospitals information system. RESULTS: Except the scale "extinction", Cronbach's alpha was higher than 0.62. All scales were rated lower than 2.02 on a 5-point Likert Scale (1 = fullest approval; 5 = complete rejection). "Negative reinforcement" was rated with 2.87 (SD 0.73). There were no significant differences in outcome data prior. The questionnaire fulfils criteria for application except the scale "extinction". CONCLUSION: The presented training course was perceived as useful by the professionals and attitudes toward training were positive; the content was positively reinforced in practice 1 year after training. Parameters of the newborn did not change. It is conceivable that other outcome parameters (e.g. posttraumatic stress disorder) are addressed by the training. The development of relevant outcome parameters for the quality of emergency sections needs further investigation.


Subject(s)
Cesarean Section/education , Emergency Medical Services/methods , Inservice Training/methods , Interdisciplinary Communication , Adult , Cesarean Section/statistics & numerical data , Educational Measurement , Emergencies , Emergency Treatment , Female , Germany , Humans , Infant, Newborn , Patient Care Team , Pregnancy , Surveys and Questionnaires , Young Adult
20.
Arch Gynecol Obstet ; 302(4): 1001-1007, 2020 10.
Article in English | MEDLINE | ID: mdl-32683482

ABSTRACT

PURPOSE: Evaluating the counseling of patients with vulvar cancer in outpatient setting regarding the application of sentinel lymph node dissection (SLND), the selection of hospitals for further treatment, and level of knowledge. METHODS: A questionnaire containing 29 questions about SLND in vulvar cancer was sent to gynecologists in Lower Saxony. The questionnaire contained multiple choice questions and open questions. The study was approved by the local ethics committee. RESULTS: The median age of the 86 respondents was 54 (26-66) years. Most participants (83.1%) reported to only treat one to five patients with vulvar cancer per year. Interestingly, 70.5% of the gynecologists send their patients to university hospitals and 64.1% to hospitals offering maximum care, respectively. Of all, 32.7% replied that SLND was performed rarely or never in their patients. The gynecologists answered that only 36.7% of the patients are well informed about advantages and possible disadvantages of SLND. Most (84%) felt responsible to counsel patients on treatment decisions independently from or additionally to the hospital. Of all, 72% replied that they are not completely sure about the exact recurrence rates after SLND. Of notice, 66% believe that SLND for vulvar cancer is safe if applied in specialized centers and 92% stated that focusing treatment on specialized centers is required for best results. CONCLUSION: SLND for vulvar cancer is widely accepted and regularly recommended among gynecologists. Outpatient doctors report to send most patients to specialized centers. However, it appears that patients remain uninformed after counseling in the clinics and that there is a lack of detailed knowledge about risks and complication rates of groin treatment in the outpatient setting.


Subject(s)
Counseling/methods , Sentinel Lymph Node Biopsy/methods , Sentinel Lymph Node/surgery , Vulvar Neoplasms/surgery , Adult , Aged , Female , Humans , Middle Aged , Outpatients , Vulvar Neoplasms/pathology
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