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1.
Cereb Cortex ; 30(3): 1244-1259, 2020 03 14.
Artigo em Inglês | MEDLINE | ID: mdl-31408166

RESUMO

Electrical activity is important for brain development. In brain slices, human subplate neurons exhibit spontaneous electrical activity that is highly sensitive to lanthanum. Based on the results of pharmacological experiments in human fetal tissue, we hypothesized that hemichannel-forming connexin (Cx) isoforms 26, 36, and 45 would be expressed on neurons in the subplate (SP) zone. RNA sequencing of dissected human cortical mantles at ages of 17-23 gestational weeks revealed that Cx45 has the highest expression, followed by Cx36 and Cx26. The levels of Cx and pannexin expression between male and female fetal cortices were not significantly different. Immunohistochemical analysis detected Cx45- and Cx26-expressing neurons in the upper segment of the SP zone. Cx45 was present on the cell bodies of human SP neurons, while Cx26 was found on both cell bodies and dendrites. Cx45, Cx36, and Cx26 were strongly expressed in the cortical plate, where newborn migrating neurons line up to form cortical layers. New information about the expression of 3 "neuronal" Cx isoforms in each cortical layer/zone (e.g., SP, cortical plate) and pharmacological data with cadmium and lanthanum may improve our understanding of the cellular mechanisms underlying neuronal development in human fetuses and potential vulnerabilities.


Assuntos
Cádmio/administração & dosagem , Córtex Cerebral/efeitos dos fármacos , Córtex Cerebral/fisiologia , Conexinas/metabolismo , Lantânio/administração & dosagem , Neurônios/efeitos dos fármacos , Neurônios/fisiologia , Conexina 26/metabolismo , Feminino , Feto , Humanos , Masculino , Potenciais da Membrana , Isoformas de Proteínas/metabolismo , RNA Mensageiro/metabolismo , Proteína delta-2 de Junções Comunicantes
2.
Cent Eur J Public Health ; 29(2): 162, 2021 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-34245544

RESUMO

Letter to the Editor, in response to the paper "Reproductive health of Roma women in Slovakia", Cent Eur J Public Health 2020 28(2):143-148.


Assuntos
Roma (Grupo Étnico) , Estudos Transversais , Feminino , Comportamentos Relacionados com a Saúde , Humanos , Saúde Reprodutiva , Eslováquia
3.
Histochem Cell Biol ; 142(5): 541-53, 2014 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-24854997

RESUMO

Mucins are multifunctional highly glycosylated proteins expressed by the female reproductive tract. Differential expression of MUC1 and MUC15 has been shown in trophoblast. This study was undertaken to establish the distribution of mucin(s) in cytotrophoblast cell cultures using anti-bovine submaxillary mucin (BSM) and to investigate the possibility of MUC1/mucin(s) being a binding partner of trophoblast galectin-1. MUC1 is demonstrated here using immunocytochemistry on isolated cytotrophoblast and the HTR-8/SVneo extravillous trophoblast cell line but detection of additional trophoblast mucins cannot be excluded. Western blot analysis showed similar bands ranging from 30 to >200 kDa with anti-BSM and the well-known mucin antibodies HMFG1 and B72.3. Immunocytochemistry and cell-based ELISA data were found to support that all of the antibodies used are reactive with BSM, suggesting the presence of shared epitopes between BSM and trophoblast mucin(s). Binding of galectin-1 to trophoblast MUC1/mucin(s) was analyzed using a solid-phase assay and co-immunoprecipitation. Recombinant galectin-1 binding to isolated trophoblast mucin in solid-phase assay was sensitive to lactose, a carbohydrate inhibitor of galectin binding. In whole HTR-8/SVneo lysates, ~200 kDa mucin was detected in galectin-1 immunoprecipitates, while endogenous galectin-1 was present in BSM-immunoprecipitates. Furthermore, double fluorescence immunocytochemistry showed overlap of galectin-1 and trophoblast mucins at the plasma membrane of HTR-8/SVneo cells. These results suggest that trophoblast mucin(s) could act as binding partners of galectin-1, in a carbohydrate-dependent manner.


Assuntos
Galectina 1/metabolismo , Mucinas/metabolismo , Trofoblastos/metabolismo , Células Cultivadas , Galectina 1/química , Humanos , Imuno-Histoquímica , Mucinas/química , Ligação Proteica , Trofoblastos/citologia
4.
Biomedicines ; 11(10)2023 Sep 30.
Artigo em Inglês | MEDLINE | ID: mdl-37893055

RESUMO

Antiphospholipid syndrome (APS) is a complex thrombo-inflammatory autoimmune disease characterized by the presence of antiphospholipid antibodies (aPL). Women with APS are at high risk of recurrent early pregnancy loss as well as late obstetrical complications-premature birth due to placental insufficiency or severe preeclampsia. Accumulating evidence implies that vascular thrombosis is not the only pathogenic mechanism in obstetric APS, and that the direct negative effect of aPL on the placental cells, trophoblast, plays a major role. In this review, we summarize the current findings regarding the potential mechanisms involved in aPL-induced trophoblast dysfunction. Introduction on the APS and aPL is followed by an overview of the effects of aPL on trophoblast-survival, cell function and aPL internalization. Finally, the implication of several non-coding RNAs in pathogenesis of obstetric APS is discussed, with special emphasis of their possible role in trophoblast dysfunction and the associated mechanisms.

5.
Life (Basel) ; 13(12)2023 Dec 10.
Artigo em Inglês | MEDLINE | ID: mdl-38137921

RESUMO

INTRODUCTION: Intrauterine fetal death (IUFD) is defined as death of the fetus after the 20th week of gestation. Despite regular monitoring the incidence of IUFD remains high. This study aims to assess the incidence and maternal conditions associated with IUFD over term pregnancies in a twelve-year period. MATERIALS AND METHODS: A retrospective descriptive study was conducted on a population of women in whom IUFD was diagnosed in a term pregnancy during the period from January 2010 to December 2022. The study was at the Clinic for Obstetrics and Gynecology, University Clinic Centre of Serbia. The analyses included the number of deliveries, live births, and stillbirths, as well as maternal, fetal, and placental conditions associated with the risk of IUDF. The statistical analysis involved descriptive statistical methods and one sample proportion. RESULTS: The average age of the patients was 30 years. Most patients had secondary and higher education, and 70% of patients had regular pregnancy monitoring; 53.33% were primiparous and pregnancies occurred spontaneously. IUFD mainly occurred in the 39th week of gestation. In total, 38.3% had one to two associated diseases, 5% more than three, and 58.33% were healthy. Recurrence of IUFD was reported by 10% of patients, while 8.33% had a history of spontaneous abortion. Over 80% of placental histopathological findings indicated some pathology (e.g., infarction, infections, placental abruption). CONCLUSIONS: The most significant risk factors for IUFD in term pregnancies in our population during the study period were hypertensive syndrome in pregnancy, obesity and gestational diabetes. Pathological findings on the placenta were more common in our study group than is usually reported with infractions of placental tissue being the most common, even in healthy women.

6.
J Matern Fetal Neonatal Med ; 35(22): 4346-4353, 2022 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-33207979

RESUMO

BACKGROUND: Even though thrombophilias are associated with negative pregnancy outcomes (PO), there is not a consensus of when thrombophilias should be screened for, or how they affect placental vascularization during pregnancy. Therefore, the main aim of this study was to discover inherited thrombophilias (IHT) in the first trimester in women with otherwise no indications for thrombophilia screening, based on their vascularization parameters. LMWH treatment in improvement of placental vascularization and PO was also assessed. Finally, the classification of thrombophilias based on observed obstetric risks was proposed. METHODS: Women were included in study based on their poor gestational sac and later utero-placental juncture vascularization signal and screening for inherited thrombophilias. LMWH were then initiated and Resistance index of Uterine artery (RIAU) was followed alongside PO (preterm birth, preeclampsia, placental abruption, intrauterine growth reduction). Study group consisted of women with combined inherited thrombophilias. Control group consisted of patients with inherited thrombophilias who have received LMWH therapy since pregnancy beginning. FINDINGS: Out of 219 women, 93 had IHT, and 43 had combined IHT. All pregnancies both in both groups ended up with live births. Vaginal birth was more present in the control group (p < .001), and all women in study group delivered by CS. Premature birth was present in 8.4% of patients in control group, and in 32.55% of the patients in the study (p < .001). PE wasn't noted, and only 1 case of PA in control group. In the control group, 6.5% patients had IUGR, and 32.55% in the study group (p < .05). Based on RIAU and PO, thrombophilia categories were established: S (severe), MO (moderate), MI (mild) and L (low). Higher risk thrombophilias had higher RIAU later in the pregnancy, earlier pregnancy termination and Intrauterine Growth Reduction (IUGR). CONCLUSIONS: Thrombophilias should be considered and screened when poor vascularization is noted early in the pregnancy with Doppler sonography. Intervention with LMWH prevents adverse PO in these patients.


Assuntos
Pré-Eclâmpsia , Nascimento Prematuro , Trombofilia , Anticoagulantes/uso terapêutico , Feminino , Heparina de Baixo Peso Molecular/uso terapêutico , Humanos , Recém-Nascido , Placenta , Gravidez , Resultado da Gravidez , Trombofilia/tratamento farmacológico
7.
Artigo em Inglês | MEDLINE | ID: mdl-35682099

RESUMO

The aim of this study was to analyze the trends in diabetes in pregnancy in Belgrade, Serbia for the period of the past decade and forecast the number of women with pre-gestational diabetes for the years 2030 and 2050. The study included the data on all pregnant women with diabetes from the registry of the deliveries in Belgrade, by the City Institute of Public Health of Belgrade, Serbia for the period between 2010 and 2020 and the published data on the deliveries on the territory of Belgrade. During the examined period the total number of live births in Belgrade was 196,987, and the prevalence of diabetes in pregnancy was 3.4%, with the total prevalence of pre-gestational diabetes of 0.7% and overall prevalence of GDM of 2.7%. The average age of women in our study was significantly lower in 2010 compared to 2020. The forecasted prevalence of pre-gestational diabetes among all pregnant women for 2030 is 2% and 4% for 2050 in our cohort. Our study showed that the prevalence of pre-gestational diabetes has increased both among all pregnant women and among women with diabetes in pregnancy in the past decade in Belgrade, Serbia and that it is expected to increase further in the next decades and to further double by 2050.


Assuntos
Diabetes Gestacional , Estudos de Coortes , Diabetes Gestacional/epidemiologia , Feminino , Humanos , Gravidez , Prevalência , Sérvia/epidemiologia
8.
Artigo em Inglês | MEDLINE | ID: mdl-35329371

RESUMO

The aim of this study was to examine the differences in pregnancy complications, delivery characteristics, and neonatal outcomes between women with type 1 diabetes mellitus (T1DM), type 2 diabetes mellitus (T2DM), and gestational diabetes mellitus (GDM). This study included all pregnant women with diabetes in pregnancy in Belgrade, Serbia, between 2010 and 2020. The total sample consisted of 6737 patients. In total, 1318 (19.6%) patients had T1DM, 138 (2.0%) had T2DM, and 5281 patients (78.4%) had GDM. Multivariate logistic regression with the type of diabetes as an outcome variable showed that patients with T1DM had a lower likelihood of vaginal delivery (OR: 0.73, 95% CI: 0.64-0.83), gestational hypertension (OR: 0.47, 95% CI: 0.36-0.62), higher likelihood of chronic hypertension (OR: 1.88, 95% CI: 1.55-2.29),and a higher likelihood ofgestational age at delivery before 37 weeks (OR: 1.38, 95% CI: 1.18-1.63) compared to women with GDM. Multivariate logistic regression showed that patients with T2DM had a lower likelihood ofgestational hypertension compared to women with GDM (OR: 0.37, 95% CI: 0.15-0.92).Our results indicate that the highest percentage of diabetes in pregnancy is GDM, and the existence of differences in pregnancy complications, childbirth characteristics, and neonatal outcomes are predominantly between women with GDM and women with T1DM.


Assuntos
Diabetes Mellitus Tipo 1 , Diabetes Mellitus Tipo 2 , Diabetes Gestacional , Hipertensão Induzida pela Gravidez , Complicações na Gravidez , Diabetes Mellitus Tipo 1/complicações , Diabetes Mellitus Tipo 1/epidemiologia , Diabetes Mellitus Tipo 2/complicações , Diabetes Mellitus Tipo 2/epidemiologia , Diabetes Gestacional/epidemiologia , Feminino , Humanos , Hipertensão Induzida pela Gravidez/epidemiologia , Recém-Nascido , Masculino , Gravidez , Complicações na Gravidez/epidemiologia , Resultado da Gravidez/epidemiologia , Gestantes
9.
J Matern Fetal Neonatal Med ; 34(15): 2567-2576, 2021 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-31547728

RESUMO

The term thrombophilia describes disorders associated with an increased predisposition of developing venous thromboembolism (VTE). It may be acquired, like in those with antiphospholipid syndrome or inherited. The aim of this review was to compare the complications and outcomes of pregnancies in women with inherited thrombophilia between different populations, including the population of our country where the results of the research are scarce. The review of literature included all papers indexed on PubMed and Medline in the last 20 years, with different study design, including other reviews of literature, systematic reviews with meta-analysis and several case-control studies and population-based cohort studies. We aimed to cover as many geographic regions as possible with the aim to show the differences in the different parts of the world and including our country. Our analysis showed that types of thrombophilia differ in different geographic regions. Also, the differences exist between one particular type of thrombophilia in different regions. Nevertheless, no matter what the differences are between prevalence, all authors investigated the association between inherited thrombophilia and poor pregnancy outcome and managed to find some kind of association. The case with our own country is similar. Although we lack in studies with this issue and the design of published studies is not powerful enough, we may conclude that in our samples, women with thrombophilia are in potential risk of several poor pregnancy outcomes. Further and better analyses are necessary to prove this hypothesis not only on the level of study sample but also on general population. Given the fact that thrombophilia certainly affects the pregnancy and its outcome, the urge to perform screening tests in every woman suspected to have this kind of disorder and with respect to differences that exist in different world regions is inevitable.


Assuntos
Complicações Hematológicas na Gravidez , Trombofilia , Tromboembolia Venosa , Feminino , Humanos , Gravidez , Complicações Hematológicas na Gravidez/epidemiologia , Resultado da Gravidez/epidemiologia , Fatores de Risco , Trombofilia/complicações , Trombofilia/epidemiologia
10.
Medicine (Baltimore) ; 100(37): e27232, 2021 Sep 17.
Artigo em Inglês | MEDLINE | ID: mdl-34664864

RESUMO

ABSTRACT: Both pregnancy, as physiological, and polycystic ovary syndrome (PCOS), as a pathological condition, carry the risk for developing glucose metabolism abnormalities. In this retrospective cross-sectional study, we hypothesized that pregnancy as a physiological condition carries a higher likelihood for abnormal oral glucose tolerance test (OGTT) results than PCOS as a pathological condition.We have compared the prevalence and likelihood ratios for abnormal OGTT results between non-pregnant women with PCOS (Group A) and pregnant women at 24 to 28 weeks of gestation (Group B). Participants of both study groups underwent glucose tolerance testing with 75 g glucose OGTT. During the study period, 7411 women were tested, 3932 women encompassed Group A, and 3479 women comprised Group B.The numbers of yearly tested pregnant women and the corresponding proportion of tested women among all study participants have decreased during the study period, from 766 to 131 and 89.1% to 20.5%, respectively. Group A had a significantly lower prevalence (4.4%) of pathological OGTT results compared to Group B (8.1%). This has resulted in a 45.427 likelihood ratio (P < .001) for abnormal OGTT results in pregnant women compared to non-pregnant women with PCOS.We might conclude that pregnancy could have a more challenging influence on glucose metabolism and that carries higher risks for abnormal glucose metabolism than PCOS. The awareness of obstetricians regarding physiological changes during pregnancy that predisposes abnormal glucose metabolism is decreasing over time and the compliance concerning OGTT testing of pregnant women is decreasing too.


Assuntos
Teste de Tolerância a Glucose/estatística & dados numéricos , Síndrome do Ovário Policístico/complicações , Adulto , Glicemia/análise , Glicemia/metabolismo , Índice de Massa Corporal , Estudos Transversais , Feminino , Intolerância à Glucose/epidemiologia , Intolerância à Glucose/etiologia , Teste de Tolerância a Glucose/métodos , Humanos , Programas de Rastreamento/métodos , Programas de Rastreamento/estatística & dados numéricos , Síndrome do Ovário Policístico/epidemiologia , Síndrome do Ovário Policístico/metabolismo , Gravidez , Estudos Retrospectivos
11.
EXCLI J ; 18: Doc1007, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31762725

RESUMO

Macrophage migration inhibitory factor (MIF) is a multifunctional cytokine abundantly present at the feto-maternal interface proposed to play a role in establishment of pregnancy. We have previously shown that pharmacological inhibition of enzymatic activity of MIF decreases extravillous trophoblast invasion and migration in vitro. This study aimed to further elucidate potential role of endogenous trophoblast MIF, and to assess its importance for endovascular trophoblast cell function in particular. Attenuation of MIF by siRNA reduced HTR-8/SVneo cell invasion through Matrigel (59 % of control), expression of integrin α1 (86 % of control) and levels of MMP2 and MMP9 (87 % and 57 % of control, respectively). MIF specific siRNA reduced the ability of HTR-8/SVneo to differentiate in to endothelial-like phenotype, as determined by Matrigel tube formation assay. The total tube length was decreased to 68.6 %, while the number of branching points was reduced to 57.8 % of control. HTR-8/SVneo cell capacity to integrate into HUVEC monolayers was reduced by knock-down of MIF. This could be partly caused by reduced N-cadherin expression to 63 % of control, which decreased with knock-down of MIF, as the expression of this protein was recently shown essential for trophoblast-endothelial interaction. These novel findings indicate a novel role for trophoblast MIF in spiral artery remodeling process.

12.
Medicine (Baltimore) ; 98(34): e16883, 2019 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-31441864

RESUMO

Previous adverse pregnancy outcomes (APO) in women with hereditary thrombophilia have emerged as new indications for prophylactic use of low-molecular-weight heparin (LMWH) during pregnancy. Recent meta-analysis conducted to establish if LMWH may prevent recurrent placenta-mediated pregnancy complications point to important therapeutic effect but these findings are absolutely not universal. Furthermore, previous studies regarding LMWH prophylaxis for APO in women with inherited thrombophilia were performed in high risk patients with previous adverse health outcomes in medical, family and/or obstetric history. Therefore, the aim of this study was to investigate the effects of LMWH prophylaxis on pregnancy outcomes in women with inherited thrombophilias regardless of the presence of previous adverse health outcomes in medical, family, and obstetric history.Prospective analytical cohort study included all referred women with inherited thrombophilia between 11 and 15 weeks of gestation and followed-up to delivery. Patients were allocated in group with LWMH prophylaxis (study group) and control group without LWMH prophylaxis. The groups were compared for laboratory parameters and Doppler flows of umbilical artery at 28 to 30th, 32nd to 34th and 36th to 38th gestational weeks (gw), and for obstetric and perinatal outcomes.The study group included 221 women and control group included 137 women. Mean resistance index of the umbilical artery Ri in 28 to 30, 32 to 34, and 36 to 38 gw were significantly higher in the control group compared to study group (0.71 ±â€Š0.02 vs 0.69 ±â€Š0.02; 0.67 ±â€Š0.03 vs 0.64 ±â€Š0.02; and 0.67 ±â€Š0.05 vs 0.54 ±â€Š0.08, respectively). Intrauterine fetal death (IUFD) and miscarriages were statistically significantly more frequent in control group compared to the patients in study (P < .001). The frequencies of fetal growth restriction (FGR) and APO were significantly higher in the control group compared to the study group (P = .008 and P < .001, respectively). In a multivariate regression model with APO as a dependent variable, only Ri was detected as a significant protective factor for APO, after adjusting for age and LMWH prophylaxis (P < .001).We have demonstrated better perinatal outcomes in women with LMWH prophylaxis for APO compared to untreated women.


Assuntos
Anticoagulantes/uso terapêutico , Heparina de Baixo Peso Molecular/uso terapêutico , Complicações Hematológicas na Gravidez/tratamento farmacológico , Trombofilia/tratamento farmacológico , Aborto Espontâneo/prevenção & controle , Adulto , Estudos de Casos e Controles , Feminino , Morte Fetal/prevenção & controle , Retardo do Crescimento Fetal/prevenção & controle , Humanos , Recém-Nascido , Nascido Vivo/epidemiologia , Gravidez , Estudos Prospectivos
13.
Medicine (Baltimore) ; 97(41): e12799, 2018 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-30313110

RESUMO

One of the risk factors for vascular obstetric complications, such as intrauterine growth restriction (IUGR), is inherited thrombophilias. Nevertheless, routine screening for thrombophilias is not endorsed in pregnant women due to their low prevalence and conflicting results of published studies regarding the usefulness of screening in these patients. The cause of IUGR remains unknown in almost 1 quarter of cases. There are no published studies evaluating the association of inherited thrombophilias and IUGR in patients with IUGR of unknown origin. Understanding and preventing IUGR is an important public health concern, as IUGR has been associated with fetal mortality and neonatal morbidity, as well as adverse long-standing consequences. This study aimed to evaluate the prevalence of inherited thrombophilias in IUGR of unknown cause and to test the association between the inherited thrombophilias and IUGR of unknown cause.This study included 33 cases of IUGR of unknown cause tested for inherited thrombophilias and 66 controls individually matched for age, ethnicity, and smoking status.Patients with plasminogen activator inhibitor 1 (PAI-1) and methylenetetrahydrofolate reductase (MTHFR) had significantly higher odds for IUGR of unknown cause (P < .001 and P = .002, respectively) with OR 13.546 (CI 95% 3.79-48.37) and 8.139 (CI 95% 2.20-30.10), respectively. A positive association between other inherited thrombophilias (homozygous 20210 prothrombin gene mutation and homozygous factor V Leiden) and IUGR of unknown cause was also found, P = .096, OR 6.106 (CI 95% 0.72-51.30), although it was not statistically significant (P = .096, OR = 6.106, CI 95% 0.72-51.30).Our results indicate that PAI-1 and MTHFR thrombophilias represent risk factors for IUGR of otherwise unidentified cause.


Assuntos
Retardo do Crescimento Fetal/etiologia , Metilenotetra-Hidrofolato Redutase (NADPH2)/biossíntese , Inibidor 1 de Ativador de Plasminogênio/biossíntese , Trombofilia/complicações , Trombofilia/genética , Adulto , Índice de Massa Corporal , Estudos de Casos e Controles , Feminino , Humanos , Gravidez , Estudos Retrospectivos
15.
Reprod Biol ; 17(4): 389-395, 2017 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-29102762

RESUMO

Immunoglobulins from sera of patients with antiphospholipid syndrome (APS) decrease trophoblast cell invasion in vitro. This study aimed to extend understanding of cellular effects of immunoglobulins from APS (aPL+) in HTR-8/SVneo cells. aPL+ IgG induced change in effector molecules important for cell invasion was investigated further. After 1h of culture 21% cells bound aPL+ IgG, as opposed to 6% in control (aPL-). This was accompanied by increase in phospho-p38 at 30min. After 24h treatment aPL+IgG decreased protein levels of integrin subunits α1 (78% of control; p<0.01), α4 (65% of control, p<0.01), α5 (76% of control; p<0.01) and ß1 (80% of control; p<0.01), and secreted gal-1 (68% of control; p<0.05). ProMMP-9 was reduced to 70% of control (p<0.001). Treatment with inhibitor of p38 MAPK signaling SB202190 reversed inhibition in integrin ß1 and secreted gal-1. Involvement of p38 MAPK signaling and decrease in integrin subunit α4, proMMP-9, and secreted gal-1 in HTR-8/SVneo cells are novel and extend the list of mediators of trophoblast invasion affected by aPL.


Assuntos
Síndrome Antifosfolipídica/imunologia , Imunoglobulinas/metabolismo , Trofoblastos/metabolismo , Linhagem Celular , Movimento Celular/efeitos dos fármacos , Movimento Celular/fisiologia , Sobrevivência Celular/efeitos dos fármacos , Sobrevivência Celular/fisiologia , Inibidores Enzimáticos/farmacologia , Feminino , Humanos , Imidazóis/farmacologia , Integrinas/metabolismo , Fosforilação/efeitos dos fármacos , Piridinas/farmacologia , Transdução de Sinais/efeitos dos fármacos , Transdução de Sinais/fisiologia , Trofoblastos/efeitos dos fármacos
16.
Turk J Med Sci ; 47(3): 934-941, 2017 Jun 12.
Artigo em Inglês | MEDLINE | ID: mdl-28618747

RESUMO

BACKGROUND/AIM: The aim of the study was to evaluate the association and the potential predictive value of first trimester ultrasonographic parameters on the course and outcome of monochorionic diamniotic twin pregnancies. MATERIALS AND METHODS: A prospective cohort study was undertaken of 39 healthy women with consecutive monochorionic diamniotic twin pregnancies. During first-trimester screening, crown-rump length (CRL) and nuchal translucency (NT) were measured. The intertwin discordance in CRL and NT was determined. As pregnancy outcomes we assessed twins' live-born rates, Apgar scores, birth weight, pregnancy complications, and gestational week of delivery. RESULTS: None of the assessed pregnancy outcomes significantly correlated with standard CRL discordance ≥10%. The newly established cut-off was 3.75 mm for CRL and 1.3 mm for NT. Monochorionic diamniotic twins were delivered in a later gestational week and had better chance of survival if CRL intertwin difference was <3.75 mm. Apgar scores significantly negatively correlated only with NT of corresponding twins. When intertwin NT difference was ≥1.3 mm, twins had lower birth weight and pregnancy complications were more frequent. Regression models show that intertwin CRL difference <3.75 mm is a significant predictor of live-born monochorionic diamniotic twins. CONCLUSION: CRL and NT in monochorionic diamniotic twin pregnancies could indicate pregnancy complications and outcomes.


Assuntos
Primeiro Trimestre da Gravidez/fisiologia , Gravidez de Gêmeos/estatística & dados numéricos , Gêmeos Monozigóticos/estatística & dados numéricos , Ultrassonografia Pré-Natal , Adulto , Estatura Cabeça-Cóccix , Feminino , Humanos , Medição da Translucência Nucal/estatística & dados numéricos , Gravidez , Estudos Prospectivos , Adulto Jovem
17.
Blood Coagul Fibrinolysis ; 28(6): 496-499, 2017 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-28306626

RESUMO

: Severe form of haemophilia in women is an extremely rare condition. Owing to the rarity of the disease there are no precise recommendations concerning the optimal management of pregnancy and delivery in these patients. We are reporting the clinical course and management of a 30-year-old woman with a severe form of haemophilia A (factor VIII <1 IU/dl) during her first pregnancy and delivery. Antepartum, she was treated on demand by FVIII concentrate and she delivered at 37 weeks of gestation by cesarean section. In postpartal period an excellent control of bleeding was obtained by regularly administering FVIII concentrate for several days as well by concomitant use of tranexamic acid and oral contraceptive pills in the next 6 weeks.


Assuntos
Hemofilia A/tratamento farmacológico , Complicações Hematológicas na Gravidez/tratamento farmacológico , Adulto , Fator VIII/uso terapêutico , Feminino , Hemorragia/prevenção & controle , Humanos , Gravidez , Resultado da Gravidez , Ácido Tranexâmico/uso terapêutico
18.
Srp Arh Celok Lek ; 141(7-8): 528-31, 2013.
Artigo em Sr | MEDLINE | ID: mdl-24073563

RESUMO

INTRODUCTION: Progress of labor in multiparous women usually is not accompanied with risk of any kind of birth trauma. CASE OUTLINE: We report a very rare case of rib fracture in a neonate during vaginal delivery in the 39/40 week of gestation. The expulsion started spontaneously without any manipulation from the obstetrician. Live male newborn was delivered 4650 g. in weight, 55 cm long, with head circumference of 39 cm, Apgar score 9. The child was immediately examined by the neonatologist. Crepitations were palpable over the left hemithorax, and auscultatory on the left side inspiratory cracks. Finding was suspicious for rib fracture on the left side posteriorly and brachial plexus palsy, while other findings were normal. X-ray finding was inconclusive, but suspicious for fracture of the 4th, 5th, and 6th left rib posteriorly, without dislocation of bone fragments. There were no signs of pneumothorax. Dorsal position of the newborn was considered sufficient, accompanied with analgetics. X-ray was scheduled in a week because formation of the calus would be the only objective sign of previous rib fracture. On the control X-ray fracture lines were clearly visible on the 3rd, 4th, 5th 6th and 7th rib posteriorly, without dislocation of bone fragments with initial calus formation. The child was discharged from hospital in good condition after two weeks, for further outpatient care. CONCLUSION: With timely diagnostics of this very rare intrapartal fracture, adequate treatment, dorsal position and close control of clinical condition of the newborn, serious and potentially life threatening complications can be avoided.


Assuntos
Traumatismos do Nascimento/etiologia , Parto Obstétrico/efeitos adversos , Fraturas das Costelas/etiologia , Adulto , Feminino , Humanos , Recém-Nascido , Masculino , Gravidez
19.
Acta Histochem ; 112(1): 34-41, 2010.
Artigo em Inglês | MEDLINE | ID: mdl-18835012

RESUMO

Antibodies to phospholipids (aPL) have been shown to adversely affect trophoblast invasion in vivo and in vitro. HTR-8/SVneo cells derived from first trimester of pregnancy extravillous trophoblast were studied. Matrigel invasion assay, cytochemistry and cell-based enzyme-linked immunosorbant assay (ELISA) with aPL or normal IgG was used. Our data show that aPL at 100 microg/ml decrease invasiveness of HTR-8/SVneo cells to 60% of control (p<0.01), and this was also shown for primary cytotrophoblast (to 15.5% of control, p<0.001). aPL treatment caused a significant decrease in integrin alpha(1), alpha(5), and beta(1) proteins (86%, 84%, and 87%, respectively). We conclude that HTR-8/SVneo cell culture is a suitable model to study mechanisms of action of aPL on trophoblast, which in HTR-8/SVneo cells inhibit invasion by decreasing integrins alpha(5), alpha(1), and beta(1).


Assuntos
Anticorpos Antifosfolipídeos/farmacologia , Trofoblastos/citologia , Trofoblastos/efeitos dos fármacos , Linhagem Celular , Sobrevivência Celular/efeitos dos fármacos , Feminino , Humanos , Cadeias alfa de Integrinas/metabolismo , Integrina beta1/metabolismo , Gravidez , Primeiro Trimestre da Gravidez
20.
Vojnosanit Pregl ; 64(6): 381-4, 2007 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-17687941

RESUMO

BACKGROUND/AIM: [corrected] Radical hysterectomy is a surgical approach for stage Ib and IIa of cervical cancer. The incidence of intraoperative injuries of the bladder during radical hysterectomy ranges from 0.4-3.7%. The ureter can be crushed, caught in sutures, transsected, obstructed by angulation, or ischemic by the stippling or periureteric fascia. Vesicovaginal and ureterovaginal fistuls are reported to develop in 0.9-2% of patients after radical abdominal hysterectomy. Fistulas usually become manifested or visible at speculum examination within 14 days following the surgery. The aim of this study was to establish the incidence and predisposing factor of urological complications after radical hysterectomy. METHODS: The study included a total of 536 patients with invasive stage Ib to IIb cancer of the cervix uteri who had underwent radical hysterectomy. The special elements considered were: the patient's age; the International Federation of Ginecology and Obstetrics (FIGO) stage after pathohistology; duration of operation; the result of preoperative laboratory tests for diabetes, anemia, hypoproteinemia, or disorders of liver or kidney function; ASA status; postoperative surgical infection. RESULTS: The average age of the patients with complications was 48.68 years. All patients with intraoperative ureteric and bladder injuries had statisticaly significant higher stage of disease and operation lasted more than in others without injury. We noticed 1.3% ureteral injuries and 1.49% bladder injuries, more than 50% of the patients with a previously mentoned injuries were operated on more than 3 hours. We found 2.61% vesicovaginal and 2.43% ureterovaginal fistuls. A total of 50% of the patients with bladder injury and vesicovaginal fistuls and 70% of the patients with ureterovaginal fistuls had diabetes mellitus. Postoperative infection of surgical site is a very important factor for the development of fistule. Half of the patients with vesicovaginal fistuls had abscess of vaginal cuff. CONCLUSION: The stage of the disease seem to be the most significant factor in the development of intraoperative ureter and bladder injuries. The stage of the disease, intraoperative bladder injury, diabetes mellitus and postoperative infection of surgical site are the most significant factors in the development of postoperative fistuls.


Assuntos
Histerectomia/efeitos adversos , Bexiga Urinária/lesões , Fístula Urinária/etiologia , Adulto , Idoso , Feminino , Humanos , Complicações Intraoperatórias , Pessoa de Meia-Idade , Ureter/lesões , Neoplasias do Colo do Útero/cirurgia
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