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OBJECTIVE: To determine maternal, obstetric and neonatal outcomes in a cohort of women with primary biliary cholangitis (PBC) and primary sclerosing cholangitis (PSC). DESIGN: Retrospective cohort study. SETTING: Ten specialist centres managing pregnant women with liver disease. POPULATION: Women with a diagnosis of PBC and PSC and a pregnancy of ≥20 completed weeks of gestation. METHODS: Retrospective case notes review. MAIN OUTCOME MEASURES: Adverse outcomes were defined as: maternal - development of ascites, variceal bleeding, encephalopathy and jaundice; obstetric events - gestational hypertension, pre-eclampsia and postpartum haemorrhage; and neonatal - stillbirth, preterm delivery and admission to neonatal unit. The relationship of alanine transferase (ALT) and bile acid levels with gestation at delivery was studied. RESULTS: The first recorded pregnancies of 34 women with PSC and 27 women with PBC were analysed. There were 60 live births and one intrapartum stillbirth that did not occur in the context of maternal cholestasis. The overall median gestation of delivery was 38 weeks but the rate of preterm birth was 28% (17/61 deliveries), 76% (13/17) of which were spontaneous. Gestation at birth negatively correlated with maternal serum ALT concentration at booking (P = 0.017) and serum bile acid concentration during pregnancy (P = 0.016). There were no other significant correlations and maternal and neonatal outcomes were good. CONCLUSIONS: Pregnancy in PBC and PSC is well tolerated, but women should be counselled regarding the increased risk of preterm birth. Measurement of maternal ALT and bile acids may help identify women at risk of preterm delivery. TWEETABLE ABSTRACT: Pregnancy in women with PBC and PSC is well tolerated; however, rates of preterm birth are high and are related to maternal bile acid levels.
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Colangitis Esclerosante , Cirrosis Hepática Biliar , Complicaciones del Embarazo , Nacimiento Prematuro , Adulto , Colangitis Esclerosante/complicaciones , Colangitis Esclerosante/diagnóstico , Colangitis Esclerosante/epidemiología , Femenino , Humanos , Recién Nacido , Cirrosis Hepática Biliar/complicaciones , Cirrosis Hepática Biliar/diagnóstico , Cirrosis Hepática Biliar/epidemiología , Pruebas de Función Hepática/métodos , Embarazo , Complicaciones del Embarazo/diagnóstico , Complicaciones del Embarazo/epidemiología , Resultado del Embarazo/epidemiología , Nacimiento Prematuro/etiología , Nacimiento Prematuro/prevención & control , Estudios Retrospectivos , Medición de Riesgo , Reino Unido/epidemiologíaRESUMEN
INTRODUCTION: There is concern that e-cigarette use could be a risk factor for subsequent cigarette smoking. METHODS: This survey included a group of 1220 students at Aix-Marseille University who attended a check-up visit and volunteered to participate to the survey. They answered a standardized questionnaire relating to e-cigarette use, smoking habits and the relationship between both habits. Mean age of participants was 19.9 years and 56% of them were female. RESULTS: All students invited to the check-up examination attended and agreed to participate in the survey. 13.3% of students answered they had already used e-cigarettes, a higher proportion of boys (17.5%) than girls (10.0%), starting at a mean age equal to 19.2 years. Forty-six percent of them had already smoked cigarettes, more girls (55.0%) than boys (45.0%). Among current cigarette smokers, e-cigarette use had induced giving up smoking in 12.6% and a decrease in the number of cigarettes smoked in 30.1%. Twenty percent said they begun to smoke cigarettes after using e-cigarettes. DISCUSSION: E-cigarette use is much less prevalent than smoking conventional tobacco cigarettes. There is a strong link between both. E-cigarette use had allowed a cessation or reduction in tobacco smoking in half of users. E-cigarette users may go on to start tobacco smoking but prospective surveys are needed to know how this will evolve over time. E-cigarette use could also be a means to prevent or postpone cigarette smoking.
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Sistemas Electrónicos de Liberación de Nicotina/estadística & datos numéricos , Fumar/epidemiología , Universidades/estadística & datos numéricos , Adolescente , Adulto , Femenino , Francia/epidemiología , Humanos , Masculino , Prevalencia , Estudiantes/estadística & datos numéricos , Adulto JovenRESUMEN
Protected areas (PAs) are key elements for biodiversity conservation and ecosystem services. Brazil has the largest PA system in the world, covering approximately 220 million ha. This system expanded rapidly in the mid-1990s to the mid-2000s. Recent events in Brazil, however, have led to an increase in PA downgrading, downsizing, and degazettement (PADDD). Does this reflect a shift in the country's PA policy? We analyzed the occurrence, frequency, magnitude, type, spatial distribution, and causes of changes in PA boundaries and categories in Brazil. We identified 93 PADDD events from 1981 to 2012. Such events increased in frequency since 2008 and were ascribed primarily to generation and transmission of electricity in Amazonia. In Brazilian parks and reserves, 7.3 million ha were affected by PADDD events, and of these, 5.2 million ha were affected by downsizing or degazetting. Moreover, projects being considered by the Federal Congress may degazette 2.1 million ha of PA in Amazonia alone. Relaxing the protection status of existing PAs is proving to be politically easy in Brazil, and the recent increase in frequency and extension of PADDD reflects a change in governmental policy. By taking advantage of chronic deficiencies in financial and personnel resources and surveillance, disputes over land tenure, and the slowness of the Brazilian justice, government agencies have been implementing PADDD without consultation of civil society. If parks and reserves are to maintain their integrity, there will need to be investments in Brazilian PAs and a better understanding of the benefits PAs provide.
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Conservación de los Recursos Naturales/legislación & jurisprudencia , Política Ambiental/legislación & jurisprudencia , Actitud , Brasil , Conservación de los Recursos Naturales/tendencias , Política Ambiental/tendencias , GobiernoRESUMEN
BACKGROUND AND AIMS: Carotid intima-media thickness (IMT) and arterial stiffness parameters, including aortic augmentation index (AIx) and pulse wave velocity (PWV), are independent predictors of stroke and cardiovascular disease. Genetic effects on these traits were never explored in a Mediterranean country. The present study aims to quantify the contribution of genes, environment and age to carotid IMT and aortic Aix and PWV. METHODS AND RESULTS: The twin design was used. A total of 348 adult twins from the Italian Twin Register underwent measurements of carotid IMT and aortic PWV and AIx in three university hospitals located in Rome, Padua and Perugia. Carotid IMT was measured by B-mode ultrasound, aortic PWV and AIx by Arteriograph. Genetic modelling was performed to decompose total variance of traits into genetic, shared and unshared environmental and age components. For each phenotype, the best-fitting model included additive genetic, unshared environmental and age effects. For IMT, heritability was 0.32 (95% confidence interval (CI): 0.25-0.38), unshared environmental component was 0.25 (0.18-0.32) and age contribution was 0.44 (0.39-0.49). For AIx and PWV, heritabilities were 0.42 (0.29-0.55) and 0.49 (0.35-0.62), unshared environmental components were 0.31 (0.22-0.44) and 0.37 (0.26-0.51) and age contributions were 0.27 (0.16-0.39) and 0.14 (0.06-0.24), respectively. CONCLUSION: This study shows substantial genetic and unshared environmental influences on carotid intima-media thickness and arterial stiffness and confirms the relevant role of age in the aetiology of these traits. Further support is provided for prevention and health promotion strategies based on modifiable factors.
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Grosor Intima-Media Carotídeo , Interacción Gen-Ambiente , Rigidez Vascular/genética , Adulto , Anciano , Aorta/metabolismo , Índice de Masa Corporal , Enfermedades Cardiovasculares/diagnóstico por imagen , Enfermedades Cardiovasculares/genética , Arteria Carótida Común/diagnóstico por imagen , Femenino , Predisposición Genética a la Enfermedad , Humanos , Italia , Masculino , Persona de Mediana Edad , Análisis de la Onda del Pulso , Factores de RiesgoRESUMEN
Killer immunoglobulin-like receptors (KIR) regulate the activity of natural killer and T cells through an interaction with specific human leucocyte antigen (HLA) class I molecules on target cells. Diversity in KIR gene content, KIR allelic and haplotype polymorphism has been observed between different ethnic groups. However, most population studies on KIR variability have focused on Europe and Asia, while Americas, Oceania and Africa remain poorly studied. The aim of this study was to analyse the variability of KIR genes in 200 healthy nonrelated individuals from the Southern Brazilian population. KIR genes and HLA-A, -B and -Cw were genotyped using polymerase chain reaction-sequence-specific primers. Southern Brazilian population demonstrated several similarities to states that are closer geographically and distinct differences with Northern Brazil in the frequency of genes KIR2DS1, 2DS2, 2DS3, 2DS5, 3DL1, 3DS1, 2DL1 and 2DL2. The activating gene KIR2DS5 was the least frequent locus found in our group. Interaction of KIR/HLA was more common in the 2DS1-/2DL1+/C2+ association. This study demonstrated the diversity of KIR genes and of KIR/HLA association in a Caucasian group of Southern Brazil, establishing differences and similarities to other different populations.
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Variación Genética , Receptores KIR/genética , Población Blanca/genética , Adolescente , Adulto , Brasil , Femenino , Frecuencia de los Genes , Genotipo , Antígenos HLA-A/genética , Humanos , Masculino , Persona de Mediana Edad , Familia de Multigenes , Adulto JovenRESUMEN
BACKGROUND: Tuberculosis (TB) is highly endemic in Rio de Janeiro State prisons. In addition to TB screening at entry and passive case detection, active case identification may be warranted. OBJECTIVES: To develop and evaluate performances of scores aimed at identifying "tuberculosis suspects" in order to target TB screening among inmates. METHODS: Systematic chest X-ray screening was carried out in two prisons (n=1910). TB was diagnosed among individuals with X-ray abnormalities by sputum microscopic examination and culture or, if bacteriological results were negative, by response to TB treatment. Using this strategy as a reference, the clinical score proposed in WHO guidelines "TB Control in Prisons" was evaluated. Using the same variables in a logistic regression comparing TB and non-TB cases, another score was developed and evaluated. Finally, a 'new score', based on socio-demographic and clinical variables was developed and evaluated. RESULTS: When applied to our study population (prevalence of active TB: 4.6%), these scores missed many TB cases (sensitivities: 56%, 72%, 74%, respectively). Among the "TB suspects", the probability of finding TB cases was low (positive predictive value: 10%). The scores had high negative predictive values (>97%); specificities (75%, 60%, 67%) were low. Performances were similarly poor for smear-negative and smear-positive cases. CONCLUSION: The scores investigated performed poorly and would be unhelpful to target TB screening. Therefore, systematic X-ray screening may be considered, at least during the initial stages of the reinforced TB programme, in order to reduce the impressive burden of TB.
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Tamizaje Masivo/métodos , Prisioneros/estadística & datos numéricos , Tuberculosis/diagnóstico , Tuberculosis/epidemiología , Adulto , Distribución por Edad , Brasil/epidemiología , Enfermedades Endémicas , Humanos , Modelos Logísticos , Masculino , Radiografías Pulmonares Masivas/estadística & datos numéricos , Tamizaje Masivo/normas , Persona de Mediana Edad , Análisis Multivariante , Valor Predictivo de las Pruebas , Prevalencia , Prisiones , Esputo/microbiología , Tuberculosis/diagnóstico por imagen , Organización Mundial de la SaludRESUMEN
OBJECTIVE: To evaluate whether the traction force indicator in a ventouse device gave an accurate estimation of the force applied. METHODS: The study was carried out at the Derby City Hospital. An estimate of measurement errors was made by analyzing the standard deviation of the residuals for 30 Kiwi OmniCup devices (Clinical Innovations, Abingdon, Oxfordshire, England) and a standard industrial spring balance. RESULTS: The measurement errors for the traction forces were very small and acceptable for the OmniCup. The overall estimate of measurement errors was 0.45 kg (1.35 lb). CONCLUSION: The overall measurement error for the traction force indicator of the OmniCup was found to be very small. Injuries associated the ventouse, such as cephalohematomas and subgaleal hemorrhages, may be minimized if the recommended limits for a safe traction force are not exceeded.
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Extracción Obstétrica por Aspiración/instrumentación , Fenómenos Biomecánicos , Diseño de Equipo , Femenino , Humanos , EmbarazoRESUMEN
Hypothalamic pituitary thyroid (HPT) axis abnormalities and alterations in major depression are reported in the literature. The aim of our study was to evaluate the effect of mirtazapine on thyroid hormones after 6 months of therapy in a sample of adult outpatients with Major Depression (MD). 17 adult outpatients (7 men, 10 women) with MD according to DSM-IV criteria, were included in the study. All participants had to have met criteria for a major depressive episode with a score of at least 15 on the Hamilton Depression Rating Scale (HAM-D). Fasting venous blood samples were obtained for determination of serum Thyroid Stimulating Hormone (TSH), Free T3 (FT3) and Free T4 (FT4) concentrations both at baseline and after 6 months of therapy. HAM-D scores decreased significantly from the first day of treatment to the end of the treatment period (P<0.001) and twelve patients (70.6%) were classified as responders. A significant increase in FT3 concentrations was found between baseline and the end of the treatment period (P=0.015), whereas FT4 concentrations decreased (P=0.046). No significant changes were found in TSH levels. Higher FT4 concentrations at baseline predicted higher HAM-D scorers both at baseline and at the end of the treatment period. Furthermore, higher FT3 concentrations at endpoint were found to be predictors of lower HAM-D scores. Long-term treatment with mirtazapine increases FT3 levels and decreases FT4 maybe involving the deiodination process of T4 into T3.
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Antidepresivos Tricíclicos/efectos adversos , Trastorno Depresivo Mayor/sangre , Mianserina/análogos & derivados , Hormonas Tiroideas/sangre , Adulto , Antidepresivos Tricíclicos/uso terapéutico , Trastorno Depresivo Mayor/tratamiento farmacológico , Femenino , Humanos , Sistema Hipotálamo-Hipofisario/efectos de los fármacos , Masculino , Mianserina/efectos adversos , Mianserina/uso terapéutico , Persona de Mediana Edad , Mirtazapina , Escalas de Valoración Psiquiátrica , Análisis de Regresión , Glándula Tiroides/efectos de los fármacos , Tirotropina/sangre , Tiroxina/sangre , Resultado del Tratamiento , Triyodotironina/sangreRESUMEN
BACKGROUND: Wrist blockage of median and ulnar nerves before treatment of palmar hyperhidrosis with botulinum toxin (BTX-A) reduces discomfort and improves accuracy of BTX-A injections, but can be associated with mechanical/chemical injury. OBJECTIVES: We sought to compare locoregional anesthesia of median and ulnar nerves using conventional 25-G x 0.50 x 13 mm gauge needle with short 30-G x 0.40 x 6 mm gauge needle. METHODS: In all, 37 patients with idiopathic, recalcitrant palmar hyperhidrosis were treated with BTX-A after median and ulnar nerve blockage. In 18 patients, a conventional needle was used to achieve nerve blockage and in 19 the short needle was used. The 2 groups of patients were compared for analgesic effects and lag phase. RESULTS: No differences were found between groups for lag phase (P=.26) and discomfort of subsequent BTX-A treatment (P=1.0). CONCLUSION: The use of a short-gauge needle to block median and ulnar nerves is a suitable method to anesthetize the palm before treatment with BTX-A.
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Toxinas Botulínicas Tipo A/uso terapéutico , Hiperhidrosis/tratamiento farmacológico , Agujas , Bloqueo Nervioso , Dolor/prevención & control , Adulto , Toxinas Botulínicas Tipo A/administración & dosificación , Femenino , Humanos , Inyecciones/efectos adversos , Masculino , Nervio Mediano , Bloqueo Nervioso/instrumentación , Aceptación de la Atención de Salud , Nervio Cubital , MuñecaRESUMEN
OBJECTIVES: To investigate the relationship between second-trimester uterine artery Doppler findings and parity in a large pregnant population. METHODS: Uterine artery Doppler studies were performed in all singleton pregnancies at 18-23 weeks of gestation. The mean uterine artery resistance index and the presence or absence of protodiastolic notches were recorded. Two groups were identified: pregnancies not complicated by pre-eclampsia, and pregnancies with pre-eclampsia severe enough to require delivery at or before 32 weeks of gestation. RESULTS: In the 4132 pregnancies uncomplicated by pre-eclampsia, parity was shown to be an independent predictor for both mean uterine artery resistance index (beta = 0.073, P < 0.001) and the presence of bilateral protodiastolic notches (odds ratio = 0.67; 95% CI, 0.45-0.98). In the 17 pregnancies complicated with severe pre-eclampsia, uterine artery Doppler indices showed a trend towards being better predictors of disease in nulliparous compared with parous women. CONCLUSION: Parity has a significant effect on the resistance index and the prevalence of protodiastolic notching in the uterine artery flow waveforms. This difference is clinically noticeable in its effect on notching. These findings suggest that some permanent modification may persist in the maternal vessels after a successful pregnancy, altering their impedance in subsequent pregnancies.
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Útero/irrigación sanguínea , Adulto , Arterias , Velocidad del Flujo Sanguíneo , Femenino , Humanos , Edad Materna , Paridad , Embarazo , Segundo Trimestre del Embarazo , Fumar/efectos adversos , Fumar/fisiopatología , Ultrasonografía Doppler/métodos , Ultrasonografía Prenatal/métodosRESUMEN
Cesarean section without medical indication is cited as a factor in the increase in the rate of cesarean delivery in modern obstetric practice. Individual obstetricians often express strong views supporting or refuting the right of women to request operative delivery and their rights to decline or fulfill this request. Such strong opinions may be misplaced as the available evidence does not conclusively support either view-point.
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Cesárea , Cesárea/efectos adversos , Cesárea/ética , Cesárea/legislación & jurisprudencia , Conducta de Elección , Procedimientos Quirúrgicos Electivos , Femenino , Humanos , Bienestar Materno , Complicaciones del Trabajo de Parto/prevención & control , Grupo Paritario , EmbarazoAsunto(s)
Enfermedades Fetales/diagnóstico por imagen , Enfermedades Intestinales/diagnóstico por imagen , Intestinos/diagnóstico por imagen , Segundo Trimestre del Embarazo , Ultrasonografía Prenatal , Adulto , Algoritmos , Femenino , Enfermedades Fetales/etiología , Humanos , Enfermedades Intestinales/etiología , Intestinos/patología , EmbarazoRESUMEN
OBJECTIVE: Our aim was to evaluate the detection of fetal cells from transcervical samples by means of fluorescence in situ hybridization analysis. STUDY DESIGN: Forty-seven women undergoing first-trimester termination of pregnancy were recruited for transcervical sampling and 16 were recruited for endocervical mucus aspiration. Subjects were asked to assess the discomfort of the procedure. Fluorescence in situ hybridization analyses were performed with X and Y chromosome-specific probes. Results were compared with those of conventional chromosomal analysis. RESULTS: Male signals (XY) were observed in 19 of 25 male fetuses (76%), and female signals (XX) were observed in 21 of 22 female fetuses. There was a significant variation between operators in cell retrieval. With mucus aspiration only 37.5% of male fetuses were correctly identified. The subjects did not find the procedure uncomfortable and reported that it was comparable to having a cervical smear taken. CONCLUSIONS: Transcervical irrigation correctly identified the sex of 76% of male fetuses, but it still has considerable operator variability. This variability might be reduced by improved catheter design.
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Cuello del Útero/citología , Feto/citología , Moco del Cuello Uterino/citología , Reacciones Falso Positivas , Femenino , Humanos , Hibridación Fluorescente in Situ , Masculino , Embarazo , Análisis para Determinación del Sexo , Succión , Irrigación Terapéutica , Cromosoma X , Cromosoma YRESUMEN
In monolayers cultures, retinoic acid (RA) induces the differentiation of F9 embryonal carcinomal (EC) cells into primitive endoderm-like cells, while a combination of RA and dibutyryl cAMP leads to parietal endoderm-like differentiation. Knock out of all RARgamma isoforms (RARgamma(-/-) line) drastically impairs primitive and subsequent parietal endodermal differentiation and affects the induction of many endogenous RA-responsive genes. Using lines that reexpress RARgamma2 or overexpress RARalpha1 lacking their AF-2AD core (RARgammadeltaAF2 and RARalphadeltaAF2, respectively), we show that this conserved amphipatic alpha-helical motif (helix 12) of the ligand binding domain, and therefore the activation function AF-2 of both receptors, is required for the induction of differentiation and target gene expression upon RA treatment of F9 EC cells. We also show that these deletion mutants behave as dominant negatives.
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Antineoplásicos/farmacología , Receptores de Ácido Retinoico/química , Receptores de Ácido Retinoico/metabolismo , Tretinoina/farmacología , Secuencia de Aminoácidos , Animales , Antineoplásicos/metabolismo , Carcinoma Embrionario , Diferenciación Celular/efectos de los fármacos , Diferenciación Celular/fisiología , Línea Celular Transformada , Secuencia Conservada , Endodermo/citología , Endodermo/fisiología , Eliminación de Gen , Regulación Neoplásica de la Expresión Génica/fisiología , Mutagénesis/fisiología , Regiones Promotoras Genéticas/fisiología , Estructura Secundaria de Proteína , Estructura Terciaria de Proteína , Receptores de Ácido Retinoico/genética , Receptor alfa de Ácido Retinoico , Transfección , Tretinoina/metabolismo , Células Tumorales Cultivadas , Receptor de Ácido Retinoico gammaRESUMEN
The present study proposes a new approach to the feminine origins of nursing, utilizing an archetypical framework, analysing the features of this profession which has changed very little along its history. The article advocates that nursing characteristics are the result of a collective unconscious, that is, a primitive model of innate ideas. The perspective adopted for a feminine archetype in this investigation are related to the historical and social basis of nursing, as well as, with its pre-defined objective which is caring. Utilizing their own professional experience throughout the years, the authors identity that the essence of the nursing profession is caring and that this act, which involves protecting, promoting and preserving the human being, is basically associated to women. Based on these reflections, the authors advocate the idea nurses have an individual conscience that is influenced by a collective unconscious which is inherited.
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Feminismo , Teoría de Enfermería , Femenino , Humanos , Factores SexualesRESUMEN
The nuclear receptor mouse retinoid X receptor alpha (mRXRalpha) was shown to be constitutively phosphorylated in its NH2-terminal A/B region, which contains potential phosphorylation sites for proline-directed Ser/Thr kinases. Mutants for each putative site were generated and overexpressed in transfected COS-1 cells. Constitutively phosphorylated residues identified by tryptic phosphopeptide mapping included serine 22 located in the A1 region that is specific to the RXRalpha1 isoform. Overexpression and UV activation of the stress-activated kinases, c-Jun NH2-terminal kinases 1 and 2 (JNK1 and JNK2), hyperphosphorylated RXRalpha, resulting in a marked decrease in its electrophoretic mobility. This inducible hyperphosphorylation involved three residues (serines 61 and 75 and threonine 87) in the B region of RXRalpha and one residue (serine 265) in the ligand binding domain (E region). Binding assays performed in vitro with purified recombinant proteins demonstrated that JNKs did not interact with RXRalpha but bound to its heterodimeric partners, retinoic acid receptors alpha and gamma (RARalpha and RARgamma). Hyperphosphorylation by JNKs did not affect the transactivation properties of either RXRalpha homodimers or RXRalpha/RARalpha heterodimers in transfected cultured cells.
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Proteínas Quinasas Dependientes de Calcio-Calmodulina/metabolismo , Proteínas Quinasas Activadas por Mitógenos , Proteínas Nucleares/metabolismo , Receptores de Ácido Retinoico/metabolismo , Factores de Transcripción/metabolismo , Animales , Células COS , Células Cultivadas , Genes Reporteros , Humanos , Proteínas Quinasas JNK Activadas por Mitógenos , Ratones , Proteína Quinasa 9 Activada por Mitógenos , Mutagénesis Sitio-Dirigida , Fosforilación , Prolina/metabolismo , Proteínas Quinasas/metabolismo , Conejos , Receptores de Ácido Retinoico/genética , Receptores X Retinoide , Relación Estructura-Actividad , Treonina/metabolismo , Factores de Transcripción/genética , Transfección , Tretinoina/farmacología , Rayos UltravioletaRESUMEN
This study consists of a report about a research project which started in August, 1997. The project involved teachers from the maternal-paediatrics department with Faculdade de Enfermagem--UERJ (Nursing Faculty with State University of Rio de Janeiro) and professionals from the municipal health center in Rio de Janeiro--SMS/RJ. The introduction of prenatal nursing consultation as a new subject in the nursing graduation course, as well as its formation, and implementation in the referred municipal health center is reported in this paper. This study also proposes a review of the current biomedical consultation model, in order to motivate reflection, break paradigms, and increase the prenatal consultation process in Rio de Janeiro.
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Enfermería Obstétrica , Atención Prenatal , Femenino , Humanos , EmbarazoRESUMEN
A case of prenatal diagnosis and management of a giant fetal arachnoid cyst is presented. The importance of an accurate diagnosis is highlighted and the use of three-dimensional ultrasound is discussed. The recent literature is reviewed.