نتایج جستجو برای: preterm birth
تعداد نتایج: 141906 فیلتر نتایج به سال:
Preterm birth (<37 weeks) complicates 12.5% of all deliveries in the USA, and remains the leading cause of perinatal mortality and morbidity, accounting for as many as 75% of perinatal deaths. Despite the recent temporal increase in preterm birth, efforts to understand the problem of prematurity have met with little success. This may be attributable to the under-appreciation of the etiologic he...
BACKGROUND Preterm birth is a leading cause of perinatal morbidity and mortality worldwide, resulting in a pressing need to identify risk factors leading to effective interventions. Limited evidence suggests potential relationships between maternal sleep or vital exhaustion and preterm birth, yet the literature is generally inconclusive. METHODS We examined the relationship between maternal s...
BACKGROUND Preterm birth rate is increasing and is currently a worldwide concern. The purpose of this study was to estimate the prevalence of preterm birth in a sample of health facilities in Brazil and to identify the main risk factors associated with spontaneous preterm births. METHODS AND FINDINGS This was a multicentre cross sectional study on preterm births in 20 referral obstetric hospi...
Background and Objective: Preterm birth and low birth weight are considered as causes of morbidity and mortality, developmental disorders and child abnormalities. Since health outcomes differ on ethno-racial groups and there is little information among hand with regards to the said matter in Iran, this study was designed to survey the preterm and low birth weight prevalence on Iranian a...
S chaaf and colleagues 1 have confirmed an increased risk of preterm birth in singleton pregnancies among women with a history of preterm birth in a twin pregnancy. Their comprehensive evaluation of a large dataset should settle the uncertainty that has attended previous smaller studies. 2-6 The risk is real, so now the question is, Why? Why do women who deliver twins preterm more often deliver...
UNLABELLED Preterm birth increases the risk of adverse birth outcomes and is the leading cause of neonatal mortality. A significant cause of preterm birth is in utero infection with vaginal microorganisms. These vaginal microorganisms are often recovered from the amniotic fluid of preterm birth cases. A vaginal microorganism frequently associated with preterm birth is group B streptococcus (GBS...
BACKGROUND Spontaneous preterm birth is a complex syndrome with multiple pathways interactions determining its occurrence, including genetic, immunological, physiologic, biochemical and environmental factors. Despite great worldwide efforts in preterm birth prevention, there are no recent effective therapeutic strategies able to decrease spontaneous preterm birth rates or their consequent neona...
There are currently more than 15 million preterm births each year. We propose that gene-environment interaction is a major contributor to preterm birth. To address this experimentally, we generated a mouse model with uterine deletion of Trp53, which exhibits approximately 50% incidence of spontaneous preterm birth due to premature decidual senescence with increased mTORC1 activity and COX2 sign...
This second paper in the Born Too Soon supplement presents a review of the epidemiology of preterm birth, and its burden globally, including priorities for action to improve the data. Worldwide an estimated 11.1% of all livebirths in 2010 were born preterm (14.9 million babies born before 37 weeks of gestation), with preterm birth rates increasing in most countries with reliable trend data. Dir...
BackgroundResistin is reported as an antagonistic hormone of insulin and in the literature. Nowadays, importance of resistin is being more highlighted in the metabolism of mother and fetus during pregnancy. This study aimed to assess the level of resistin in the umbilical cord and blood sugar at birth and evaluate the association of resistin and neonatal birth weight.Materials and MethodsThis c...
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