Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 23
Filtrar
1.
Cells ; 11(8)2022 04 15.
Artigo em Inglês | MEDLINE | ID: mdl-35456036

RESUMO

Women with multiple sclerosis (MS) can safely become pregnant and give birth, with no side effects or impediments. Pregnancy is generally accepted as a period of well-being in which relapses have a softer evolution, particularly in the third trimester. Herein, we hypothesized that the placenta, via its "secretome", could contribute to the recognized beneficial effects of pregnancy on MS activity. We focused on a well-known receptor/ligand/decoy receptor system, such as the one composed by the receptor activator of nuclear factor-kB (RANK), its ligand (RANKL), and the decoy receptor osteoprotegerin (OPG), which have never been investigated in an integrated way in MS, pregnancy, and placenta. We reported that pregnancy at the term of gestation influences the balance between circulating RANKL and its endogenous inhibitor OPG in MS women. We demonstrated that the placenta at term is an invaluable source of homodimeric OPG. By functional studies on astrocytes, we showed that placental OPG suppresses the mRNA expression of the CCL20, a chemokine responsible for Th17 cell recruitment. We propose placental OPG as a crucial molecule for the recognized beneficial effect of late pregnancy on MS and its potential utility for the development of new and more effective therapeutic approaches.


Assuntos
Esclerose Múltipla , Feminino , Humanos , Ligantes , Esclerose Múltipla/metabolismo , Osteoprotegerina/metabolismo , Placenta/metabolismo , Gravidez , Ligação Proteica , Ligante RANK/metabolismo , Receptor Ativador de Fator Nuclear kappa-B/metabolismo
2.
Gynecol Endocrinol ; 36(1): 87-92, 2020 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-31328597

RESUMO

To evaluate quality of life and sexual function of childbearing-age women, affected by uterine fibromatosis undergoing medical treatment with ulipristal acetate. The data obtained by filling the questionnaires European Quality of Life Five-Dimension Scale and modified Female Sexual Function Index, were analyzed to assess UPA usefulness in improving QoL and sexual activity. A total of 139 patients affected by uterine fibromatosis undergoing conservative ulipristal acetate treatment were enrolled in this prospective observational cohort study. Seventy-one women (average age 46.5 years) answered the questionnaires: QoL and sexuality were evaluated before and after ulipristal acetate treatment. 59 patients (83.1%) had an improvement of QoL and general health state, with a reduction of VAS score after ulipristal acetate treatment. EQ-5D-5L showed a statistically significant improvement of usual act impairment, mobility, discomfort, anxiety/depression (p < .0005). There was no difference in personal care management after therapy. Modified FSFI showed a statistically significant improvement (p < .0001) of sexual satisfaction and sexual life. A not statistically significant improvement in dyspareunia was also highlighted. This study provides a clear picture about QoL impact on women and confirms the effectiveness of the ulipristal acetate in improving different aspects of daily and sexual life of patients undergoing medical treatment.


Assuntos
Contraceptivos Hormonais/uso terapêutico , Leiomioma/tratamento farmacológico , Neoplasias Primárias Múltiplas/tratamento farmacológico , Norpregnadienos/uso terapêutico , Qualidade de Vida , Saúde Sexual , Neoplasias Uterinas/tratamento farmacológico , Atividades Cotidianas , Adulto , Ansiedade/psicologia , Depressão/psicologia , Dismenorreia/fisiopatologia , Dispareunia/fisiopatologia , Dispareunia/psicologia , Feminino , Humanos , Leiomioma/fisiopatologia , Leiomioma/psicologia , Libido , Menorragia/fisiopatologia , Metrorragia/fisiopatologia , Pessoa de Meia-Idade , Neoplasias Primárias Múltiplas/fisiopatologia , Neoplasias Primárias Múltiplas/psicologia , Dor Pélvica/fisiopatologia , Estudos Prospectivos , Disfunções Sexuais Fisiológicas/fisiopatologia , Resultado do Tratamento , Neoplasias Uterinas/fisiopatologia , Neoplasias Uterinas/psicologia
3.
Gynecol Endocrinol ; 36(9): 772-775, 2020 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-31868061

RESUMO

To evaluate the impact that hypothyroidism may have on the course of pregnancy and on neonatal outcome. This cross-sectional study consisting of 160 pregnant women (60 with hypothyroidism and 100 as control) who had been hospitalized at the Obstetrics and Gynecology of the University of Siena. The obstetric visit, the collection of anamnestic data and serum concentrations of TSH, FT4 and AbTPO were performed for each woman. Stratification of the population into two groups based on the BMI showed that there is an average difference of -0.88 before pregnancy BMI between healthy women and hypothyroid women. Moreover, with regard to the obstetric history, 8.7 times higher risk of abortion was found in hypothyroid women. About the current pregnancy in hypothyroid women, slight fetal growth delay, increased risk of premature rupture of membranes (PROM), and a higher risk of developing hypertension and gestational diabetes had been found. The importance of a more detailed anamnesis should be evaluated with greater attention at the beginning of pregnancy. This, in order to avoid the risks related to a hypothyroidism condition during pregnancy and to establish an early therapeutic treatment appropriate to the metabolic demands of each patient.


Assuntos
Hipotireoidismo/epidemiologia , Complicações na Gravidez/epidemiologia , Resultado da Gravidez/epidemiologia , Adulto , Peso ao Nascer/fisiologia , Estudos de Casos e Controles , Estudos Transversais , Diabetes Gestacional/epidemiologia , Feminino , Humanos , Hipotireoidismo/sangue , Hipotireoidismo/complicações , Recém-Nascido , Doenças do Recém-Nascido/epidemiologia , Gravidez , Complicações na Gravidez/sangue , Testes de Função Tireóidea/normas , Tireotropina/sangue
4.
Gynecol Endocrinol ; 35(12): 1021-1026, 2019 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-31322446

RESUMO

Tubal pregnancy represents an entity that every gynecologist will encounter during professional life. Because of the high prevalence among the pregnant population, standardized protocols are needed in order to choose the optimal strategy for each case. Accurate ultrasound pictures are supporting a more precise diagnosis of ectopic tubal pregnancy, the evolution of which should be closely monitored in follow-up with serial ß-hCG values. Laparoscopy, intramuscular methotrexate, and active expectant management are all involved, however, tailoring the best treatment to the patient's needs is the challenge to focus on. This manuscript describes how in routinary practice an evidence-based diagnostic process should be the key factor to go for the best possible management. When possible, a longsighted less invasive approach should be preferred, aiming to preserve the patient's fertility for years to come. An optimal choice of the management should involve the patient or the couple in the decision-making process to reach the ultimate goal of compliance.


Assuntos
Abortivos não Esteroides/uso terapêutico , Procedimentos Cirúrgicos em Ginecologia , Metotrexato/uso terapêutico , Gravidez Tubária/diagnóstico , Gravidez Tubária/terapia , Conduta Expectante , Gonadotropina Coriônica Humana Subunidade beta/metabolismo , Aconselhamento , Gerenciamento Clínico , Medicina Baseada em Evidências , Feminino , Humanos , Laparoscopia , Participação do Paciente , Preferência do Paciente , Gravidez , Gravidez Tubária/metabolismo , Ultrassonografia Pré-Natal
5.
Ann Ist Super Sanita ; 55(2): 161-169, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31264639

RESUMO

BACKGROUND: Job quality and evaluation of workers' health have both medical and social important implications. We studied health-related quality of life (HRQL) in nurses who perform their activity in night shifts. METHODS: A cross-sectional study was conducted between October and November 2014. Nurses who attended night shift in the Siena Teaching Hospital (Azienda Ospedaliera Universitaria Senese - AOUS) were sampled using EpiInfo software (confidence interval 95%) and investigated using the SF-36 Questionnaire. Our results were compared with the Italian general population (Apolone, 1997). A Descriptive analysis was conducted. Wilcoxon test, Pearson coefficient, t-test, Wilcoxon signed-rank test and logistic regression were used for the statistical investigation. RESULTS: 197 questionnaires were analyzed. Females were 71.7%; mean age was 39.2 years (DS 8.6); smokers were 37.8%. Males scores were higher than those of females in all dimensions of physical and mental health (p <0.05). The time taken to reach the place of work appeared to influence the dimension of General Health (coeff. -0.17); we found a worsening of 0.17 points of this dimension for every minute spent in travel. Men and nurses with more working years had a better score in Physical Pain dimension. AOUS nurses scored significantly (p <0.05) less compared with the correspondent Italian general population in General Health, Energy-fatigue, Social functioning, Physical functioning and Bodily pain. CONCLUSIONS: There is a significant relationship between night work and HRQL of nurses. The health profile of AOUS nurses' ranks below the values of the Italian general population in various dimensions.


Assuntos
Recursos Humanos de Enfermagem Hospitalar/psicologia , Qualidade de Vida , Jornada de Trabalho em Turnos/psicologia , Tolerância ao Trabalho Programado/psicologia , Adulto , Estudos Transversais , Características da Família , Fadiga/epidemiologia , Feminino , Humanos , Itália , Masculino , Pessoa de Meia-Idade , Dor/epidemiologia , Fumar/epidemiologia , Fatores Socioeconômicos , Inquéritos e Questionários , Meios de Transporte , Tolerância ao Trabalho Programado/fisiologia
6.
Free Radic Biol Med ; 126: 202-209, 2018 10.
Artigo em Inglês | MEDLINE | ID: mdl-30114478

RESUMO

Several drugs are currently in use as glutathione (GSH) enhancers in clinical, pre-clinical and experimental research. Here we compare the ability of N-acetylcysteine (NAC), 2-oxothiazolidine-4-carboxylic acid (OTC), glutathione ethyl ester (GSH-EE) and N-acetylcysteine ethyl ester (NACET) to increase the intracellular concentration of GSH using primary human umbilical vein endothelial cells (HUVEC) as in vitro model. Our experiments highlighted that NACET is largely the most efficient molecule in increasing the intracellular levels of GSH, cysteine, and γ-glutamylcysteine. This is because NACET is lipophilic and can freely cross plasma membrane but, inside the cell, it is de-esterified to the more hydrophilic NAC, which, in turn, is trapped into the cell and slowly transformed into cysteine. The higher availability of cysteine is matched by an increase in GSH synthesis, cysteine availability being the rate limiting step for this reaction. Surprisingly, the increase in GSH concentration was not linear but peaked at 0.5 mM NACET and gradually decreased when cells were treated with higher concentrations of NACET. We demonstrated that this puzzling ceiling effect was due to the fact that NAC released from NACET turned out to be a competitive inhibitor of the enzyme glutamate-cysteine ligase, with a Ki value of 3.2 mM. By using a cell culture medium lacking of cysteine and methionine, we could demonstrate that the slight increase in intracellular levels of cysteine and GSH induced by NAC in HUVEC grown in standard medium was due to the reduction of the cystine present in the medium itself there rather than to the action of NAC as Cys pro-drug. This fact may explain why NAC works well as GSH enhancer at very high concentrations in pre-clinical and in vitro studies, whereas it failed in most clinical trials.


Assuntos
Acetilcisteína/farmacologia , Proliferação de Células/efeitos dos fármacos , Etil-Éteres/farmacologia , Glutationa/metabolismo , Acetilcisteína/química , Meios de Cultura/química , Meios de Cultura/farmacologia , Cisteína/química , Células Endoteliais/efeitos dos fármacos , Etil-Éteres/química , Glutationa/análogos & derivados , Glutationa/química , Glutationa/farmacologia , Células Endoteliais da Veia Umbilical Humana/efeitos dos fármacos , Humanos , Ácido Pirrolidonocarboxílico/química , Ácido Pirrolidonocarboxílico/farmacologia , Tiazolidinas/química , Tiazolidinas/farmacologia
7.
J Obstet Gynaecol ; 38(3): 352-358, 2018 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-29058493

RESUMO

Induction of labour (IOL) is a widely-used practice in obstetrics. Our aim was to evaluate predictors of vaginal delivery in postdate pregnancies induced with prostaglandins. We conducted a retrospective cross-sectional study with analytic component. A total of 145 women, admitted for IOL after the 41st week of gestation, were induced with a vaginal pessary releasing prostaglandins. Type of delivery, whether vaginal or caesarean, was the outcome. Several maternal and foetal variables were investigated. The Kaplan-Maier curves, monovariate and a multivariate logistic regression were carried out. In our population, 80.7% of women had vaginal delivery after the induction. Multiparity and a high Bishop score at the beginning of the IOL were protective factors for a vaginal delivery (respectively OR 0.16, p = .028 and OR 0.62, p = .034) while age >35 years, and the foetal birth weight >3500 g at the birth, resulted in being risk factors for caesarean section (respectively OR 4.20, p = .006 and OR 3.63, p = .013). IMPACT STATEMENT What is already known on this subject: Induction of labour (IOL) is a widely used practice in obstetrics. Scientific literature shows several predictors of successful induction, although there is no unanimity except for 'multiparity' and 'favourable Bishop score' which are associated with positive outcome of the induction. The main difficulty in finding other predictive factors is the heterogeneity of this field (different local protocols in each hospital, type of induction, populations and outcomes chosen in each study). In addition to that, populations are not always comparable due to the different gestation. For this reason, we decided to select a specific population of women, such as low risk postterm pregnancies induced with prostaglandins, in order to detect possible predictive factors for the success of the IOL for women with uncomplicated pregnancies. What the results of this study add: Our study agrees with existing literature that 'multiparity' and 'Bishop score' are linked with the success of IOL and adds that 'maternal age' and 'foetal birth weight' are significant risk factors for the population of uncomplicated post term pregnancies induced with prostaglandins. What the implications are of these findings for clinical practice and/or further research: Our results agreed with the existing literature regarding parity and Bishop score but not for maternal age and birth weight. This adds new precious data to the literature which could be used for systematic reviews and for implementing IOL guidelines and protocols, nationally and internationally. Our findings could be also used for guiding future research in this field. It will be interesting to investigate the existence of not just specific factors but also any combination of variables which could predict the success of the procedure. At the moment these information cannot be used in terms of decision making for healthcare professionals as no variable is 100% predictive but once further research will be added, we may be able to know when is best time to start the IOL, how to facilitate the success of the procedure and how to best support the woman throughout the whole experience.


Assuntos
Trabalho de Parto Induzido , Resultado do Tratamento , Administração Intravaginal , Adulto , Peso ao Nascer , Cesárea/estatística & dados numéricos , Estudos Transversais , Parto Obstétrico/métodos , Parto Obstétrico/estatística & dados numéricos , Feminino , Humanos , Trabalho de Parto Induzido/métodos , Trabalho de Parto Induzido/estatística & dados numéricos , Idade Materna , Pessários , Gravidez , Gravidez Prolongada , Prostaglandinas/administração & dosagem , Estudos Retrospectivos , Ultrassonografia Pré-Natal
8.
J Matern Fetal Neonatal Med ; 30(14): 1704-1708, 2017 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-27549985

RESUMO

OBJECTIVE: Sideropenic anemia is a common pregnancy disorder. The relationship between anemia and adverse pregnancy outcome are contradictory, and it is related to the severity of the hemoglobin deficit. The aim of the study was to evaluate the relationship between maternal mild anemia at third trimester of pregnancy, fetal birth weight and fetal gender. STUDY DESIGN: A retrospective study including 1131 single physiological term pregnancies was conducted. According to maternal Hb levels during the third trimester, pregnant women enrolled were divided in two groups: Group A (n = 156) with Hb ≤ 11 g/dl and Group B (n = 975) with Hb ≥ 11,1 g/dl. RESULTS: Maternal characteristics, gestational age at delivery, Apgar score and post-partum hemorrhage were similar between groups. However, when neonatal sex was considerate, female newborns of anemic women had a higher birth weight (p = 0.01). Moreover, anemic women showed a significantly higher rate of emergency cesarean section (p = 0.006), in particular when the newborn was a male (p= 0.03). CONCLUSION: Maternal mild anemia in third trimester of pregnancy correlates with fetal birth weight, influencing fetal growth and delivery outcome on the basis of fetal gender. Even though the reason of this phenomenon is still unknown, these new data may represent a novel parameter to add significant prognostic information in relation to maternal mild anemia and neonatal outcome.


Assuntos
Anemia/fisiopatologia , Peso ao Nascer , Recém-Nascido , Complicações Hematológicas na Gravidez/fisiopatologia , Adulto , Feminino , Humanos , Masculino , Gravidez , Terceiro Trimestre da Gravidez , Estudos Retrospectivos , Fatores Sexuais
9.
Stem Cells Dev ; 25(9): 674-86, 2016 05 01.
Artigo em Inglês | MEDLINE | ID: mdl-26956507

RESUMO

Microvascular pericytes (PCs) are considered the adult counterpart of the embryonic mesoangioblasts, which represent a multipotent cell population that resides in the dorsal aorta of the developing embryo. Although PCs have been isolated from several adult organs and tissues, it is still controversial whether PCs from different tissues exhibit distinct differentiation potentials. To address this point, we investigated the differentiation potentials of isogenic human cultured PCs isolated from skeletal (sk-hPCs) and smooth muscle tissues (sm-hPCs). We found that both sk-hPCs and sm-hPCs expressed known pericytic markers and did not express endothelial, hematopoietic, and myogenic markers. Both sk-hPCs and sm-hPCs were able to differentiate into smooth muscle cells. In contrast, sk-hPCs, but not sm-hPCs, differentiated in skeletal muscle cells and osteocytes. Given the reported ability of the Notch pathway to regulate skeletal muscle and osteogenic differentiation, sk-hPCs and sm-hPCs were treated with N-[N-(3,5- difluorophenacetyl)-L-alanyl]-S-phenylglycine t-butyl ester (DAPT), a known inhibitor of Notch signaling. DAPT treatment, as assessed by histological and molecular analysis, enhanced myogenic differentiation and abolished osteogenic potential of sk-hPCs. In contrast, DAPT treatment did not affect either myogenic or osteogenic differentiation of sm-hPCs. In summary, these results indicate that, despite being isolated from the same anatomical niche, cultured PCs from skeletal muscle and smooth muscle tissues display distinct differentiation abilities.


Assuntos
Diferenciação Celular , Mesoderma/citologia , Músculo Liso/citologia , Especificidade de Órgãos , Pericitos/citologia , Adipogenia , Células Cultivadas , Feminino , Humanos , Imunofenotipagem , Desenvolvimento Muscular , Músculo Esquelético/citologia , Osteogênese , Pericitos/metabolismo , Receptores Notch/metabolismo , Transdução de Sinais
10.
J Matern Fetal Neonatal Med ; 29(8): 1334-8, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-26037729

RESUMO

OBJECTIVE: To describe morbidity in neonates born by cesarean section (CS) before labor between 34(+0) and 38(+6) weeks, stratified by gestational age. METHODS: Cohort study from five Italian tertiary care hospitals. Consecutive singleton pregnancies delivered by CS before labor between 34(+0) and 38(+6) weeks of gestation from January 2010 to August 2011 were included. Women in labor, with premature rupture of membranes, or with previous administration of steroids were excluded. The incidence of neonatal complication by gestational week was calculated. RESULTS: A total of 1135 cases were analyzed. Composite adverse neonatal outcomes, respiratory distress syndrome, transient tachypnea and use of continuous airway positive pressure decreased from 50%, 28%, 5% and 22% at 34 weeks of gestation, to 4.7%, 1.0%, 0.9% and 0.3% at 38 weeks of gestation. Multivariate analysis showed that the only variable independently associated with composite adverse neonatal outcome was gestational age at delivery (adjusted odds ratio 0.49; 95% confidence interval 0.39-0.61). CONCLUSIONS: The prevalence of neonatal complications in newborns delivered by CS before labor halves at each week of gestation from 34 to 38 weeks. Nonetheless complications, and mainly respiratory problems, are still present at early term gestation.


Assuntos
Cesárea , Idade Gestacional , Estudos de Coortes , Pressão Positiva Contínua nas Vias Aéreas/estatística & dados numéricos , Feminino , Humanos , Recém-Nascido , Itália/epidemiologia , Masculino , Análise Multivariada , Gravidez , Síndrome do Desconforto Respiratório do Recém-Nascido/epidemiologia , Estudos Retrospectivos , Taquipneia/epidemiologia
11.
PLoS One ; 10(4): e0124353, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-25905494

RESUMO

BACKGROUND: The study focuses on the perceived nature / technique opposition in pregnancy and delivery emerging from gynaecologist/ midwife/ pregnant woman relationships. We developed a cross-sectional survey to identify, by means of a multidimensional data-driven approach, the main latent concepts structuring the between items correlation correspondent to the different general opinions present in the data set. The obtained results can set the basis to improve patient satisfaction while decreasing healthcare costs. METHODS: The sample is made of 90 pregnant women within 24-48 hours after natural or operative birth, from three maternity units in Italy. Women filled in a questionnaire about their relationship with gynaecologist and midwife during pregnancy and hospital stay for delivery. RESULTS: Participation rate approached 100%. The emerging factorial structure gave a proof-of-concept of the hypothesis of 'nature vs. technique' as the main dimension shaping women opinions. The results highlighted the role of midwife as the 'link' between the natural and technical dimension of birth. The quality of welcome and the establishing of an empathic relation between mother and healthcare professional was shown to decrease further request of care in the post-partum period. CONCLUSIONS: The "fault plane" between nature and technique is a very critical zone for litigation. Women are particularly sensitive to the consideration and attention they receive at their admission in the hospital, as well as to the quality of human relationship with midwife. The perceived quality of welcome scaled with a decreased need of additional care and, more in general, with a more faithful attitude towards health professionals. We hypothesize that increasing the quality of welcome can exert an effect on both welfare costs and litigation. This opens the way (through an extension of this pilot study to wider populations) to relevant ameliorative actions on quality of care at practically null cost.


Assuntos
Enfermeiros Obstétricos , Relações Enfermeiro-Paciente , Relações Médico-Paciente , Qualidade da Assistência à Saúde , Feminino , Humanos , Itália , Gravidez , Inquéritos e Questionários
12.
J Matern Fetal Neonatal Med ; 28(15): 1795-8, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-25262994

RESUMO

OBJECTIVE: To evaluate pregnancy, delivery and neonatal outcome in singleton primiparous versus multiparous women with/without endometriosis. METHODS: Multicentric, observational and cohort study on a group of Caucasian pregnant women (n = 2239) interviewed during their hospitalization for delivery in five Italian Gynecologic and Obstetric Units (Siena, Rome, Padua, Varese and Florence). RESULTS: Primiparous women with endometriosis (n = 219) showed significantly higher risk of small for gestational age fetuses (OR: 2.72, 95% CI 1.46-5.06), gestational diabetes (OR: 2.13, 95% CI 1.32-3.44), preterm premature rupture of membranes (OR: 2.93, 95% CI 1.24-6.87) and preterm birth (OR: 2.24, 95% CI 1.46-3.44), and were hospitalized for a longer period of time (p < 0.0001) comparing with control group (n = 1331). Multiparous women with endometriosis (n = 97) delivered significantly more often small for gestational age fetuses (OR: 2.93, 95% CI 1.28-6.67) than control group (n = 592). Newborns of primiparous women with endometriosis needed more frequently intensive care (p = 0.05) and were hospitalized for a longer period of time (p < 0.0001). CONCLUSIONS: Women with endometriosis at first pregnancy have an increased risk of impaired obstetric outcome, while a reduced number of complications occur in the successive gestation. Therefore, it is worthy for obstetricians to increase the surveillance in nulliparous women with endometriosis during pregnancy.


Assuntos
Endometriose/epidemiologia , Complicações na Gravidez/epidemiologia , Resultado da Gravidez/epidemiologia , Doenças Uterinas/epidemiologia , Estudos de Casos e Controles , Feminino , Idade Gestacional , Humanos , Incidência , Recém-Nascido , Masculino , Estudos Multicêntricos como Assunto , Paridade , Gravidez , Nascimento Prematuro/epidemiologia , Fatores de Risco
13.
J Matern Fetal Neonatal Med ; 27(9): 910-3, 2014 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-24047313

RESUMO

OBJECTIVE: The aim of this study was to investigate the rate of the different histological chorioamnionitis (HCA) grade in relation to the gestational age in term and preterm delivery. METHODS: Three hundred and ninety-two women with singleton pregnancy with spontaneous onset of labor either prematurely or at term, with histologic diagnosis of HCA, were enrolled. Placentas were classified as: deciduitis and/or histologic chorioamnionitis within the membranes (HCA1); amnionitis or inflammation of the chorionic plate without funisitis (HCA2); and histologic chorioamnionitis with funisitis (HCA3). Microbiological culture was performed on both placental and fetal membrane samples. RESULTS: HCA1 was more frequent in women delivering at term than in preterm (p < 0.001). HCA2 was more represented in women delivering between 32 and 36 weeks (p < 0.001) and HCA3 occurred more frequently in those delivering within 32 weeks (p < 0.001). The positive bacterial culture was higher (p = 0.008) in presence of HCA3 in comparison with HCA1 and HCA2. CONCLUSIONS: This study showed a significantly different distribution of HCA grades in relation to gestational age at delivery. HCA may represent the expression of different subtending etiologies and may also reflect specific immune competence of gestational tissues at different gestational ages, strengthening as pregnancy advances.


Assuntos
Corioamnionite/patologia , Membranas Extraembrionárias/patologia , Idade Gestacional , Bactérias/isolamento & purificação , Corioamnionite/epidemiologia , Corioamnionite/microbiologia , Membranas Extraembrionárias/microbiologia , Feminino , Humanos , Recém-Nascido , Trabalho de Parto Prematuro/epidemiologia , Trabalho de Parto Prematuro/microbiologia , Trabalho de Parto Prematuro/patologia , Placenta/microbiologia , Placenta/patologia , Gravidez , Resultado da Gravidez/epidemiologia , Nascimento a Termo
14.
J Matern Fetal Neonatal Med ; 26(2): 188-92, 2013 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-22928534

RESUMO

OBJECTIVE: The aim of the present study was to evaluate: i) the rate of histologic chorioamnionitis in relation to the onset of labor and mode of delivery; ii) influence of clinical parameters on the risk of histologic chorioamnionitis in laboring women; iii) neonatal outcome in relation to histologic chorioamnionitis. METHODS: A cohort study was conducted on 395 healthy women at term, with singleton uneventful pregnancy, of which 195 with spontaneous onset of labor and 200 with elective cesarean section. All placentas, collected after delivery, were examined for the diagnosis of histologic chorioamnionitis. Mode of delivery, presence of bacterial infection of placenta and membranes, maternal clinical parameters and neonatal outcome were recorded. RESULTS: The rate of histologic chorioamnionitis in women with spontaneous onset of labor was significantly higher than in those experiencing elective cesarean section (28.7% vs. 11.5%). Nulliparity and the duration of labor were independent variables associated with acute histologic chorioamnionitis. The presence of histologic chorioamnionitis did not affect neonatal outcome. CONCLUSIONS: The present study showed a highest rate of histological chorionamniositis in women delivering after spontaneous onset of term labor, although the mode of delivery either vaginally or by emergency cesarean section was not influenced by the presence of this pathological condition.


Assuntos
Corioamnionite/fisiopatologia , Parto Obstétrico/estatística & dados numéricos , Início do Trabalho de Parto/fisiologia , Estudos de Coortes , Feminino , Humanos , Recém-Nascido , Modelos Logísticos , Gravidez , Resultado da Gravidez
15.
Expert Rev Endocrinol Metab ; 8(2): 127-138, 2013 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-30736173

RESUMO

Preterm delivery, preeclampsia and intrauterine growth restriction are the major diseases of pregnancy. A key role in their pathogenesis is played by the placenta, which is the source of hormones and other important regulatory molecules providing the metabolic and endocrine homeostasis of the fetal-placental unit. Since obstetric syndromes are characterized by important maternal and neonatal morbidity and mortality worldwide, numerous efforts have been made over the years to prevent and treat them. Due to their complex pathogenesis, however, the therapy is poor and not very effective. Therefore, great emphasis is currently given to the prevention of these diseases through the identification of biochemical and biophysical markers, among which placental factors play a crucial role. The increasing knowledge of the role of placental molecules can indeed lead to the development of new therapeutic and diagnostic tools.

16.
J Matern Fetal Neonatal Med ; 25 Suppl 1: 2-5, 2012 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-22348307

RESUMO

Preterm delivery (PTD) and pre-eclampsia (PE) represent the main "obstetric syndromes," caused by multiple conditions, and characterized by complex pathogenesis. Nonetheless, recent evidences attest that deregulation of the immune system and exaggeration of inflammatory processes, taking place in the feto-placental unit, represent common central mechanisms occurring in both diseases. Tertiary prevention represents the only intervention to prevent PTD, but its incidence is still increasing. Advances in secondary prevention, focusing on risk factors and possible markers, are necessary.


Assuntos
Pré-Eclâmpsia/prevenção & controle , Nascimento Prematuro/prevenção & controle , Biomarcadores/sangue , Feminino , Humanos , Obstetrícia/tendências , Pré-Eclâmpsia/sangue , Pré-Eclâmpsia/epidemiologia , Gravidez , Nascimento Prematuro/sangue , Nascimento Prematuro/epidemiologia
17.
J Matern Fetal Neonatal Med ; 25(6): 732-5, 2012 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-21761999

RESUMO

OBJECTIVE: To compare the effectiveness of carbetocin with oxytocin with respect to maintain adequate uterine tone and to reduce the incidence and severity of postpartum haemorrhage. Moreover safety, adverse effects and the need of additional medications were evaluated. METHODS: Prospective controlled clinical trial. We compared the effect of a single dose of carbetocin (n = 55) with oxytocin infusion (n = 55) in a women population undergoing to elective caesarean section with regional subarachnoid anaesthesia with at least one risk factor for postpartum haemorrhage. RESULTS: The mean ± SD of postoperative pain in the day of surgery in carbetocin group was significantly lower than in oxytocin group and remained significant till the third day after caesarean section. In the day of surgery and the first day after surgery, women of carbetocin group who needed analgesic drugs were significantly lower than women of oxytocin group. The differences of diuresis and of diuretic drugs need were not statistically significant between the two groups. CONCLUSIONS: A single carbetocin injection is efficacious and safe on the maintenance of uterine tone and on the limitation of blood losses, in peri- and in postoperative period. In addition, carbetocin was able to reduce pain perception during postoperative days improving quality life of women.


Assuntos
Cesárea/reabilitação , Ocitocina/análogos & derivados , Ocitocina/administração & dosagem , Percepção da Dor/efeitos dos fármacos , Hemorragia Pós-Parto/etiologia , Adulto , Cesárea/efeitos adversos , Cesárea/estatística & dados numéricos , Regulação para Baixo/efeitos dos fármacos , Esquema de Medicação , Feminino , Humanos , Recém-Nascido , Ocitócicos/administração & dosagem , Ocitócicos/efeitos adversos , Ocitocina/efeitos adversos , Percepção da Dor/fisiologia , Dor Pós-Operatória/induzido quimicamente , Dor Pós-Operatória/etiologia , Cuidado Pós-Natal/métodos , Hemorragia Pós-Parto/induzido quimicamente , Hemorragia Pós-Parto/epidemiologia , Gravidez , Risco , Resultado do Tratamento
18.
J Clin Endocrinol Metab ; 96(3): 755-65, 2011 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-21177794

RESUMO

CONTEXT: Investigation of activin-A (A) and myostatin (M) in human myometrium (HM) and leiomyoma (HL) will explain their involvement in human myometrial pathophysiology. OBJECTIVE: We aimed to investigate A and M response and steroid regulation in HM. We also evaluated A and M expression and response in HL. DESIGN: Tissues were analyzed and cultured. PATIENTS: Patients included fertile (in proliferative phase) and menopausal women undergoing hysterectomy. INTERVENTIONS: HM explant cultures were treated with A and M (for Smad-7 mRNA quantification) or estrogen and progesterone (for A and M mRNA quantification). A and M expression levels were also evaluated in menopausal (physiological absence of steroids) HM specimens. A and M and their receptors were evaluated in HL (n = 8, diameter 5-8 cm) compared with their matched HM. HL explants cultures were treated with A and M (for Smad7 mRNA quantification), and, to explain the absence of response, the levels of follistatin, follistatin-related gene (FLRG), and Cripto were evaluated. RESULTS: A and M increased Smad7 expression in HM explants. A and M mRNAs were both reduced after estradiol treatment, unchanged after progesterone treatment, but were higher in menopausal than fertile (in proliferative phase) specimens. A, M, and FLRG were expressed at higher levels in HL compared with adjacent HM, whereas the receptors, follistatin, and Smad7 mRNAs resulted unchanged. Cripto mRNA was expressed only in HL. CONCLUSIONS: A and M act on human HM and are regulated by steroids. In HL there is an increase of A, M, FLRG, and Cripto expression.


Assuntos
Ativinas/metabolismo , Leiomioma/metabolismo , Miométrio/metabolismo , Miostatina/metabolismo , Esteroides/farmacologia , Receptores de Ativinas/metabolismo , Adulto , Western Blotting , Endométrio/patologia , Fator de Crescimento Epidérmico/metabolismo , Feminino , Folistatina/metabolismo , Proteínas Relacionadas à Folistatina/biossíntese , Proteínas Relacionadas à Folistatina/genética , Proteínas Ligadas por GPI , Regulação da Expressão Gênica/efeitos dos fármacos , Humanos , Peptídeos e Proteínas de Sinalização Intercelular , Leiomioma/fisiopatologia , Luciferases/metabolismo , Glicoproteínas de Membrana/metabolismo , Pessoa de Meia-Idade , Miométrio/efeitos dos fármacos , Proteínas de Neoplasias/metabolismo , RNA/biossíntese , RNA/genética , RNA/isolamento & purificação , Reação em Cadeia da Polimerase Via Transcriptase Reversa , Transdução de Sinais/efeitos dos fármacos , Proteína Smad7/metabolismo , Técnicas de Cultura de Tecidos
19.
J Clin Endocrinol Metab ; 92(5): 1748-53, 2007 May.
Artigo em Inglês | MEDLINE | ID: mdl-17341564

RESUMO

CONTEXT: Ectopic pregnancy (EP) is an important cause of maternal deaths in early pregnancy because most fatal cases result from delayed diagnosis and inappropriate investigation. OBJECTIVE: We evaluated whether the measurement of activin A may be useful in the diagnosis of EP in women with unknown pregnancy location. DESIGN: The study was designed as an open observational study. SETTING: The study was set in a tertiary referral center for obstetric care. PATIENTS: Patients were women with unknown pregnancy location (n = 536) who had complaints of bleeding, pain, or cramping. INTERVENTIONS: Interventions included clinical examination; transvaginal ultrasound scan; human chorionic gonadotropin (hCG), progesterone, and activin A measurements; laparoscopy; uterine curettage; and histological examination. MAIN OUTCOME MEASURES: Main outcome measures were pregnancy outcomes and evaluation of sensitivity, specificity, and predictive values of hCG, progesterone, and activin A as diagnostic tests for the detection of EP. RESULTS: Pregnancy outcomes included 155 (28.9%) viable intrauterine pregnancies (IUP), 305 (56.9%) first-trimester spontaneous abortion (SAB), and 76 (14.2%) EP. SAB had the lowest (P < 0.0001) hCG and progesterone concentrations, significantly lower than EP (P < 0.001) and IUP (P < 0.001). In EP, levels were significantly (P < 0.001) lower than in IUP. On the contrary, activin A levels were lowest (P < 0.0001) in EP, significantly lower than in SAB (P < 0.001) and IUP (P < 0.001). IUP had significantly (P < 0.001) lower activin A levels than SAB. When evaluated by the receiver operating curve analysis, activin A at the cutoff of 0.37 ng/ml combined a sensitivity and a specificity of 100 and 99.6%, respectively, for prediction of EP. When activin A concentrations were below the cutoff, the positive predictive value for EP was 97.43%, and 0% for concentrations higher than 0.37 ng/ml. CONCLUSIONS: Activin A measurement may identify patients at risk of EP with a high sensibility and specificity.


Assuntos
Ativinas/sangue , Gravidez Ectópica/sangue , Gravidez Ectópica/diagnóstico , Adulto , Gonadotropina Coriônica/sangue , Feminino , Humanos , Funções Verossimilhança , Valor Preditivo dos Testes , Gravidez , Resultado da Gravidez , Progesterona/sangue , Estudos Prospectivos , Curva ROC
20.
Skin Res Technol ; 13(2): 143-7, 2007 May.
Artigo em Inglês | MEDLINE | ID: mdl-17374054

RESUMO

BACKGROUND: Very few studies have tried to clarify how pregnancy influences the morphology of pigmented skin lesions (PSL). Our purpose was to objectively determine, by digital dermoscopy analysis (DDA), any dermoscopic changes of acquired melanocitic nevi during pregnancy and after 1 year from delivery. METHODS: Thirty-five healthy pregnant women and 35 age-matched female controls were enrolled in the study. Nevi of pregnant women were analysed by DDA between 5 and 8 weeks of pregnancy, between 39 and 41 weeks of pregnancy and 12 months after delivery. Nevi of control women were analysed by DDA in a month of the year matching the period of recruitment of pregnant women and 21 months later. RESULTS: Multivariate analysis of variance (manova) for repeated measures revealed that dermoscopic variables SKIN-GREEN-AVERAGE, SKIN-BLUE-AVERAGE and CONTRAST changed during pregnancy but returned to non-significant values after a year from delivery. The variable ENTROPY showed significant differences between initial evaluation and 1 year after delivery. Finally, the variable VARIANCE OF BORDER GRADIENT showed a significant difference between the first and the last evaluations, in both pregnant and control subjects. CONCLUSIONS: The study showed that pregnancy leads to significant modifications in PSL, especially with regard to pigment network, globules and architectural order or disorder.


Assuntos
Dermoscopia/métodos , Interpretação de Imagem Assistida por Computador/métodos , Nevo Pigmentado/patologia , Complicações Neoplásicas na Gravidez/patologia , Processamento de Sinais Assistido por Computador , Neoplasias Cutâneas/patologia , Pele/patologia , Adulto , Dermoscopia/instrumentação , Feminino , Humanos , Interpretação de Imagem Assistida por Computador/instrumentação , Gravidez , Prognóstico , Reprodutibilidade dos Testes , Sensibilidade e Especificidade
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA
...