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https://www.readbyqxmd.com/read/28434005/chorioamniotic-membrane-separation-after-fetoscopic-laser-photocoagulation
#1
Mayumi Takano, Masahiko Nakata, Susumu Murata, Masahiro Sumie, Mineto Morita
INTRODUCTION: This study aimed to investigate the risk factors, incidence, and influence on the perinatal outcome of chorioamniotic membrane separation (CMS) after fetoscopic laser photocoagulation (FLP). MATERIAL AND METHODS: This retrospective study included 312 women who underwent FLP for twin-to-twin transfusion syndrome (TTTS). Clinical records were used to review obstetrical examinations, complications, operative data, ultrasonographic findings, and perinatal and neonatal follow-up data in all patients...
April 22, 2017: Fetal Diagnosis and Therapy
https://www.readbyqxmd.com/read/28431858/third-trimester-preterm-and-term-premature-rupture-of-membranes-is-there-any-difference-in-maternal-characteristics-and-pregnancy-outcomes
#2
Ivana Chandra, Lizhou Sun
BACKGROUND: The clinical significance and management of preterm premature rupture of membranes (PPROM) remains a topic of a controversy. Although PROM is associated with a low rate of complications, PPROM may lead to significant neonatal and maternal morbidity. METHODS: We performed a retrospective study of 714 women who presented to Jiangsu Province Hospital with third trimester PPROM or PROM between January and December 2015. The data were analyzed by SPSS; the significance of maternal characteristics, and maternal and neonatal outcomes were tested using Student's t test and the χ(2) test...
April 18, 2017: Journal of the Chinese Medical Association: JCMA
https://www.readbyqxmd.com/read/28427983/effect-of-headache-on-the-pathological-findings-of-unruptured-cerebral-saccular-aneurysms
#3
Masaaki Hokari, Naoki Nakayama, Yusuke Shimoda, Kiyohiro Houkin
BACKGROUND: Some patients with aneurysm exhibit warning headaches without minor bleeding, and this could be caused by stretching of the aneurysm wall. Recently, our pathological study observed subintimal fibrin deposition in a majority of the ruptured aneurysms. However, these findings were also observed in some unruptured aneurysms. In this report, two unruptured aneurysms exhibited subintimal fibrin, and interestingly, one of the patients experienced severe headache within 1 month before neuroimaging...
April 17, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28426651/association-of-candidate-gene-polymorphisms-with-clinical-subtypes-of-preterm-birth-in-a-latin-american-population
#4
Lucas G Gimenez, Allison M Momany, Fernando A Poletta, Hugo B Krupitzki, Juan A Gili, Tamara D Busch, Cesar Saleme, Viviana R Cosentino, Mariela S Pawluk, Hebe Campaña, Enrique C Gadow, Jeffrey C Murray, Jorge S Lopez-Camelo
BACKGROUND: Preterm birth (PTB) is the leading cause of neonatal mortality and morbidity. PTB is often classified according to clinical presentation: Idiopathic (PTB-I), preterm premature rupture of membranes (PTB-PPROM), and medically induced (PTB-M). The aim of this study was to evaluate the associations between specific candidate genes and clinical subtypes of PTB. METHODS: 24 SNPs were genotyped in 18 candidate genes in 709 infant triads. Of them, 243 were PTB-I, 256 PTB-PPROM, and 210 PTB-M...
April 20, 2017: Pediatric Research
https://www.readbyqxmd.com/read/28423971/intrauterine-infection-immune-system-and-premature-birth
#5
Fernanda Rodrigues Helmo, Eduardo Arthur Rodovalho Alves, Renata Alves de Andrade Moreira, Viviane Oliveira Severino, Laura Penna Rocha, Maria Luíza Gonçalves Dos Reis Monteiro, Marlene Antônia Dos Reis, Renata Margarida Etchebehere, Juliana Reis Machado, Rosana Rosa Miranda Corrêa
Preterm birth accounts for nearly one million deaths among children under five years of age, and although its etiopathogenesis is not fully elucidated, ascending intrauterine infection and fetal inflammatory response seem to be the main triggers. The intense inflammatory response mediated by IL-1β, TNF-α, PAF, IFN-γ and IL-6, PGE2 and MMP-1 and MMP-9 causes fetal membrane damage and rupture, increased uterine contractions and biochemical and structural changes in the cervix. Furthermore, preterm neonates have deficient innate and adaptive immune responses characterized by reduced levels of IgG, opsonization and phagocytosis, as well as increased activation of Th1 cells in relation to Th2 cells...
April 20, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28422393/accuracy-and-response-time-of-dual-biomarker-model-of-insulin-like-growth-factor-binding-protein-1-alpha-fetoprotein-amnioquick-duo-in-comparison-to-placental-alpha-microglobulin-1-test-in-diagnosis-of-premature-rupture-of-membranes
#6
George Uchenna Eleje, Euzebus Chinonye Ezugwu, Ahizechukwu Chigoziem Eke, Joseph Ifeanyichukwu Ikechebelu, Chukwuemeka Okwudili Ezeama, Ifeanyichukwu Uzoma Ezebialu, Nnabuike Okechukwu Ojiegbe, Chukwudi Celestine Obiora, Charles Ikechukwu Okafor, Gerald Okanandu Udigwe, Betrand Obi Nwosu, Frank O Ezugwu
AIM: The aim of this study was to determine accuracy and response time of duo of insulin-like growth factor binding protein-1 (IGFBP-1)/alpha-fetoprotein (Amnioquick duo+) versus placental alpha-microglobulin-1 (PAMG-1) in diagnosing premature rupture of membranes (PROM). METHODS: A multicenter prospective study was conducted among women with features suggestive of PROM between 24 and 42 gestational weeks (GW). PROM was confirmed post-delivery based on presence of any two of these criteria: delivery within 48 h to 7 days, chorioamnionitis, membranes overtly ruptured at delivery, and adverse perinatal outcomes strongly correlated with prolonged PROM...
April 19, 2017: Journal of Obstetrics and Gynaecology Research
https://www.readbyqxmd.com/read/28421903/expression-of-matrix-metalloproteinase-9-and-its-substrate-level-in-patients-with-premature-rupture-of-membranes
#7
Ge Zuo, Jian-Xin Dong, Fang-Fei Zhao, Yan Chen
In this study, 30 case of patients with full-term premature membrane rupture and another 30 cases of full-term delivered subject without premature rupture of membranes (PROM) were selected to explore the relationship between premature membrane rupture with matrix metalloproteinase 9 (MMP-9) and its substrate level. Results showed the plasma zinc, MMP-9 in serum and amniotic fluid increased in patients with PROM; their type IV collagen in serum and foetal membrane decreased. Increased Zinc ion concentration results in increased concentration of MMP-9, a zinc-dependent enzyme; the degradation of type IV collagen by MMP-9 might be the potential mechanism of premature rupture of membranes in full-term pregnant women...
May 2017: Journal of Obstetrics and Gynaecology: the Journal of the Institute of Obstetrics and Gynaecology
https://www.readbyqxmd.com/read/28420507/asymptomatic-pyuria-in-pregnant-women-during-the-first-trimester-is-associated-with-an-increased-risk-of-adverse-obstetrical-outcomes
#8
Yun-Ju Lai, Te-Yao Hsu, Kuo-Chung Lan, Hao Lin, Chia-Yu Ou, Hung-Chun Fu, Ching-Chang Tsai
OBJECTIVE: Urinalysis is included in the prenatal examination in the first trimester in Taiwan, in contrast to Western countries. We aimed to investigate whether asymptomatic pyuria as detected by urinalysis was associated with adverse perinatal outcomes. MATERIALS AND METHODS: A total of 1187 singleton pregnant women who received prenatal care at Kaohsiung Chang Gung Memorial Hospital between January 2012 and December 2013 were included for retrospective analysis...
April 2017: Taiwanese Journal of Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28420276/the-influence-of-maternal-vaginal-flora-on-the-intestinal-colonization-in-newborns-and-3-month-old-infants
#9
Iwona Gabriel, Anita Olejek, Krystyna Stencel-Gabriel, Miroslaw Wielgoś
The role of maternal vaginal bacteria on the colonization of neonatal gut is still matter of discussion. Our aim was estimate the role of maternal vaginal flora on the development of intestinal flora in neonates and 3- months-old infants. 79 maternal-neonatal pairs were included in the study. Vaginal swabs were taken before the rupture of membranes after admission to the delivery ward. First neonatal stool (meconium) and stool at 3-months-old infants were collected and cultured. All samples were subject to a microbiological analysis for Streptococcus, Staphylococcus, Bifidobacterium, Clostridium (including Cl...
April 18, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28420171/pannexin-and-connexin-mediated-intercellular-communication-in-platelet-function
#10
REVIEW
Filippo Molica, Florian B Stierlin, Pierre Fontana, Brenda R Kwak
The three major blood cell types, i.e., platelets, erythrocytes and leukocytes, are all produced in the bone marrow. While red blood cells are the most numerous and white cells are the largest, platelets are small fragments and account for a minor part of blood volume. However, platelets display a crucial function by preventing bleeding. Upon vessel wall injury, platelets adhere to exposed extracellular matrix, become activated, and form a platelet plug preventing hemorrhagic events. However, when platelet activation is exacerbated, as in rupture of an atherosclerotic plaque, the same mechanism may lead to acute thrombosis causing major ischemic events such as myocardial infarction or stroke...
April 17, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28418339/fetal-nasal-bone-length-as-a-novel-marker-for-prediction-of-adverse-perinatal-outcomes-in-the-first-trimester-of-pregnancy
#11
Mehmet Tunç Canda, Namık Demir, Orçun Sezer
BACKGROUND: Adverse outcomes of pregnancy are a challenging health-care problem. Prediction of adverse pregnancy outcomes is important to prevent the morbidities of the foetus and the mother. AIMS: To study the clinical interest of fetal nasal bone length in predicting adverse pregnancy outcomes in the first trimester of pregnancy. STUDY DESIGN: A population-based retrospective cohort study. METHODS: Data from 868 women with first-trimester fetal nasal bone length and birth records available were enrolled...
April 5, 2017: Balkan Medical Journal
https://www.readbyqxmd.com/read/28416325/involvement-of-the-nuclear-progestin-receptor-in-lh-induced-expression-of-membrane-type-2-matrix-metalloproteinase-required-for-follicle-rupture-during-ovulation-in-the-medaka-oryzias-latipes
#12
Katsueki Ogiwara, Takayuki Takahashi
Hormonal regulation of the expression of Mmp15, a proteolytic enzyme indispensable for ovulation in the teleost medaka, was investigated. In an in vitro culture system using preovulatory follicles, Mmp15 expression and ovulation were induced in the presence of recombinant luteinizing hormone (rLh). Both rLh-induced Mmp15 expression and ovulation were 17α, 20β-dihydroxy-4-pregnen-3-one-dependent, suggesting the involvement of a nuclear progestin receptor (Pgr). In vitro follicle ovulation and Mmp15 expression were reduced by treatment with the Pgr antagonist RU-486...
April 14, 2017: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/28414450/fabrication-of-au-nanoparticle-embedded-lipid-bilayer-membranes-supported-on-solid-substrates
#13
Naotoshi Sakaguchi, Yasuo Kimura, Ayumi Hirano-Iwata, Toshio Ogino
We fabricated gold nanoparticle (Au-NP)-embedded supported lipid bilayers (SLBs) by two methods. In the vesicle-vesicle fusion method, vesicles with hydrophobized Au-NPs are ruptured and fused on SiO2/Si substrates. In the vesicle-membrane fusion method, SLBs without Au-NPs were preformed on the substrate and then vesicles with Au-NPs were fused into the preformed membranes. In the former method, Au-NP incorporation into the SLBs was observed as an increase in the membrane thickness in atomic force microscopy (AFM) images and directly observed by transmission electron microscopy...
April 17, 2017: Journal of Physical Chemistry. B
https://www.readbyqxmd.com/read/28413178/synthesized-a%C3%AE-42-caused-intracellular-oxidative-damage-leading-to-cell-death-via-lysosome-rupture
#14
Yuki Oku, Kazuma Murakami, Kazuhiro Irie, Jun Hoseki, Yasuyoshi Sakai
Neuronal cellular accumulation of amyloid beta peptide (Aβ) has been implicated in the pathogenesis of Alzheimer's disease (AD). Intracellular accumulation of Aβ42, a toxic form of Aβ, was observed as an early event in AD patients. However, its contribution and the cellular mechanism of cell death remained unclear. We herein revealed the mechanism by which Aβ42 incorporated into cells leads to cell death by using chemically synthesized Aβ42 variants. The Aβ42 variant Aβ42 (E22P) which has an increased tendency to oligomerize, accumulated in lysosomes at an earlier stage than wild-type Aβ42, leading to higher ROS production and lysosomal membrane oxidation, and resulting in cell death...
April 12, 2017: Cell Structure and Function
https://www.readbyqxmd.com/read/28412676/investigation-of-sub-health-status-of-neonates-in-heping-street-region-beijing-and-analysis-on-related-risk-factors
#15
Chen Jie, Shi Mai, Li Qiuju, Ye Fang, Liu Fang, Fan Qinying, Zhang Yong, Wang Lin
To investigate sub-health status of neonates in Heping Street Region and related risk factors. Then, 7436 maternal women admitted to hospital in Heping Street Region, Beijing were enrolled from October 2013 to September 2015, including 293 women, who gave birth to sub-health neonates. Questionnaire survey was conducted to collect maternal age, education degree, experiences and income, occupation, life habit, condition in pregnancy, condition in perinatal period, adverse reaction in pregnancy, etc. Finally, 281 effective questionnaires were regained with effective regain rate of 95...
November 2016: Pakistan Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28412086/tocolysis-after-preterm-premature-rupture-of-membranes-and-neonatal-outcome-a-propensity-score-analysis
#16
Elsa Lorthe, François Goffinet, Stéphane Marret, Christophe Vayssiere, Cyril Flamant, Mathilde Quere, Valérie Benhammou, Pierre-Yves Ancel, Gilles Kayem
BACKGROUND: There are conflicting results regarding tocolysis in cases of preterm premature rupture of membranes. Delaying delivery may reduce neonatal morbidity due to prematurity, allow for prenatal corticosteroids and, if necessary, in utero transfer. However, that may increase risks of maternofetal infection and its adverse consequences. OBJECTIVE: To investigate whether tocolytic therapy in cases of preterm premature rupture of membranes is associated with improved neonatal or obstetric outcomes...
April 12, 2017: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28410573/risk-factors-for-necrotizing-enterocolitis-in-neonates-a-systematic-review-of-prognostic-studies
#17
Noor Samuels, Rob A van de Graaf, Rogier C J de Jonge, Irwin K M Reiss, Marijn J Vermeulen
BACKGROUND: Necrotizing enterocolitis (NEC) is a severe multifactorial disease in preterm neonates associated with high morbidity and mortality. Better insight into prognostic values of the many reported factors associated with NEC is needed to enable identification of neonates at risk for NEC. The aim was to systematically review the literature to identify independent risk factors for NEC from the literature. METHODS: Medline, Cochrane, Embase, Pubmed and Google Scholar were searched systematically for cohort studies reporting prognostic factors for NEC in neonates using multivariable analysis...
April 14, 2017: BMC Pediatrics
https://www.readbyqxmd.com/read/28409530/digital-stretching-of-cervix-in-the-active-phase-of-labour-to-shorten-its-duration-a-randomised-control-trial
#18
Deepti Pinto Rosario, Anuja Abraham, Swati Rathore, Santosh Joseph Benjamin, Visalakshi Jeyaseelan, Jiji Elizabeth Mathews
An assessment of the efficacy and satisfaction of women in active labour having digital cervical stretching compared to women who did not have this intervention. Ours was a randomised controlled trial at a tertiary centre in India. Low-risk women at term with vertex presentation in active labour with ruptured membranes and cervical dilation of 4-6 cm were included. Stretching to delivery interval was 247.5 ± 158.2 min in the intervention group and 265.5 ± 158.4 in the control group. The mode of delivery, incidence of cervical tear, and maternal, fetal and neonatal complications were similar in both groups...
January 1, 2017: Tropical Doctor
https://www.readbyqxmd.com/read/28407219/multiple-micronutrient-supplementation-for-women-during-pregnancy
#19
REVIEW
Batool A Haider, Zulfiqar A Bhutta
BACKGROUND: Multiple-micronutrient (MMN) deficiencies often coexist among women of reproductive age in low- to middle-income countries. They are exacerbated in pregnancy due to the increased demands, leading to potentially adverse effects on the mother and developing fetus. Though supplementation with MMNs has been recommended earlier because of the evidence of impact on pregnancy outcomes, a consensus is yet to be reached regarding the replacement of iron and folic acid supplementation with MMNs...
April 13, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28406353/the-effect-of-the-mindfulness-based-transition-to-motherhood-programme-in-pregnant-women-with-preterm-premature-rupture-of-membranes
#20
Oznur Korukcu, Kamile Kukulu
The purpose of the researchers is to determine the effect of a mindfulness programme on readiness for motherhood, the level of maternal attachment, and on post-partum self-evaluation. We used the quasi-experimental design. Researchers applied the mindfulness-based Transition to Motherhood programme to the treatment group for seven days. Data was collected between December 2012 and June 2014 in Turkey. At the end of the study, the treatment group showed improvement in measures of acceptance of pregnancy, level of readiness to give birth, the level of maternal attachment and the level of competence in the role of motherhood...
April 13, 2017: Health Care for Women International
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