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Membranes rupture

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https://www.readbyqxmd.com/read/28107492/correction-systemic-and-local-inflammatory-response-in-women-with-preterm-prelabor-rupture-of-membranes
#1
Teresa Cobo, Bo Jacobsson, Marian Kacerovsky, David M Hougaard, Kristin Skogstrand, Eduard Gratacós, Montse Palacio
[This corrects the article DOI: 10.1371/journal.pone.0085277.].
2017: PloS One
https://www.readbyqxmd.com/read/28104921/effects-of-gold-nanoparticles-on-lipid-packing-and-membrane-pore-formation
#2
Anupama Bhat, Lance W Edwards, Xiao Fu, Dillon L Badman, Samuel Huo, Albert J Jin, Qi Lu
Gold nanoparticles (AuNPs) have been increasingly integrated in biological systems, making it imperative to understand their interactions with cell membranes, the first barriers to be crossed to enter cells. Herein, liposomes composed of 1,2-dimyristoyl-sn-glycero-3-phosphocholine (DMPC) as a model membrane system were treated with citrate stabilized AuNPs from 5 to 30 nm at various concentrations. The fluorescence shifts of Laurdan probes reveal that AuNPs in general made liposomes more fluidic. The increased fluidity is expected to result in an increased surface area, and thus liposome shape changes from circular to less circular, which was further confirmed with fluorescence microscopy...
December 26, 2016: Applied Physics Letters
https://www.readbyqxmd.com/read/28104401/leading-causes-of-preterm-delivery-as-risk-factors-for-intraventricular-hemorrhage-in-very-preterm-infants-results-of-the-epipage-2-cohort-study
#3
Marie Chevallier, Thierry Debillon, Veronique Pierrat, Pierre Delorme, Gilles Kayem, Mélanie Durox, François Goffinet, Stephane Marret, Pierre Yves Ancel
BACKGROUND: Intraventricular hemorrhage is a major risk factor for neurodevelopmental disabilities in preterm infants. However, few studies have investigated how pregnancy complications responsible for preterm delivery are related to intraventricular hemorrhage. OBJECTIVE: To investigate the association between the main causes of preterm delivery and intraventricular hemorrhage in very preterm infants born in France during 2011 between 22 and 31 weeks of gestation...
January 16, 2017: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28103590/risk-factors-for-intrapartum-fever-in-term-gestations-and-associated-maternal-and-neonatal-sequelae
#4
Angela P H Burgess, Justin E Katz, Michael Moretti, Nisha Lakhi
AIM: To determine factors associated with intrapartum fever and to examine associated maternal and neonatal outcomes. METHODS: Retrospective study of patients between 360/7 and 420/7 gestational weeks who entered spontaneous or induced active labor and developed temperature ≥38°C; a similar group that did not develop fever were controls. Univariate and multivariate analyses were performed with p < 0.05 as significant. RESULTS: Fifty-four febrile patients and 306 nonfebrile controls met inclusion criteria...
January 20, 2017: Gynecologic and Obstetric Investigation
https://www.readbyqxmd.com/read/28099786/labor-intervention-and-outcomes-in-women-who-are-nulliparous-and-obese-comparison-of-nurse-midwife-to-obstetrician-intrapartum-care
#5
Nicole S Carlson, Elizabeth J Corwin, Nancy K Lowe
BACKGROUND: Women who are obese have slower labors than women of normal weight, and show reduced response to interventions designed to speed labor progress like oxytocin augmentation and artificial rupture of membranes. The optimal labor management for these women has not been described. METHODS: This retrospective cohort study compared 2 propensity score-matched groups of women (N = 360) who were healthy, nulliparous, spontaneously laboring, and obese (body mass index ≥ 30 kg/m(2) )...
January 18, 2017: Journal of Midwifery & Women's Health
https://www.readbyqxmd.com/read/28099729/maternal-c-reactive-protein-and-oxidative-stress-markers-as-predictors-of-delivery-latency-in-patients-experiencing-preterm-premature-rupture-of-membranes
#6
Hyun Kyung Ryu, Jong Ho Moon, Hyun Ji Heo, Jong Woon Kim, Yoon Ha Kim
OBJECTIVE: To evaluate the usefulness of maternal serum c-reactive protein (CRP), lipid peroxide, and oxygen radical absorbance capacity (ORAC), to predict the interval between membrane rupture and delivery in patients with preterm premature rupture of membranes (PPROM). METHODS: The present prospective study included patients with singleton pregnancies experiencing PPROM at earlier than 34 weeks of pregnancy who underwent spontaneous vaginal delivery between August 1, 2010 and July 31, 2013 at Chonnam National University Hospital, Republic of Korea...
February 2017: International Journal of Gynaecology and Obstetrics
https://www.readbyqxmd.com/read/28097445/pregnancy-outcomes-in-hiv-positive-women-a-retrospective-cohort-study
#7
Kholoud Arab, Andrea R Spence, Nicholas Czuzoj-Shulman, Haim A Abenhaim
PURPOSE: In the United States, an estimated 8500 HIV (human immunodeficiency virus) positive women gave birth in 2014. This rate appears to be increasing annually. Our objective is to examine obstetrical outcomes of pregnancy among HIV-positive women. METHODS: A population-based cohort study was conducted using the Nationwide Inpatient Sample database (2003-2011) from the United States. Pregnant HIV-positive women were identified and compared to pregnant women without HIV...
January 17, 2017: Archives of Gynecology and Obstetrics
https://www.readbyqxmd.com/read/28095608/esx-1-and-phthiocerol-dimycocerosates-of-mycobacterium-tuberculosis-act-in-concert-to-cause-phagosomal-rupture-and-host-cell-apoptosis
#8
Jacques Augenstreich, Ainhoa Arbues, Roxane Simeone, Evert Haanappel, Alice Wegener, Fadel Sayes, Fabien Le Chevalier, Christian Chalut, Wladimir Malaga, Christophe Guilhot, Roland Brosch, Catherine Astarie-Dequeker
Although phthiocerol dimycocerosates (DIM) are major virulence factors of Mycobacterium tuberculosis (Mtb), the causative agent of human tuberculosis, little is known about their mechanism of action. Localized in the outer membrane of mycobacterial pathogens, DIM are predicted to interact with host cell membranes. Interaction with eukaryotic membranes is a property shared with another virulence factor of Mtb, the early secretory antigenic target EsxA (also known as ESAT-6). This small protein, which is secreted by the type VII secretion system ESX-1 (T7SS/ESX-1), is involved in phagosomal rupture and cell death induced by virulent mycobacteria inside host phagocytes...
January 17, 2017: Cellular Microbiology
https://www.readbyqxmd.com/read/28092303/pregnancy-outcomes-in-women-with-a-history-of-previable-preterm-prelabor-rupture-of-membranes-correction
#9
(no author information available yet)
No abstract text is available yet for this article.
January 2017: Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28087870/purls-deliver-or-wait-with-late-preterm-membrane-rupture
#10
Keri Bergeson, Shailendra Prasad
While ACOG recommends delivery for all women with ruptured membranes after 34 weeks' gestation, a new study finds expectant management may be the way to go.
November 2016: Journal of Family Practice
https://www.readbyqxmd.com/read/28087317/acute-otitis-media-caused-by-streptococcus-pneumoniae-serotype-19a-st320-clone-epidemiological-and-clinical-characteristics
#11
Hsin Chi, Nan-Chang Chiu, Fu-Yuan Huang, Chyong-Hsin Hsu, Kuo-Sheng Lee, Li-Min Huang, Yu-Chia Hsieh
BACKGROUND: Streptococcus pneumoniae serotype 19A ST320, a highly multiresistant and virulent clone, has emerged as a common pathogen causing acute otitis media (AOM) in children. METHODS: Patients aged 0-18 years with AOM who presented at Mackay Memorial Hospital, Taipei, Taiwan were prospectively enrolled between December 1, 2009, and November 30, 2012. For each patient, a specimen of middle-ear fluid was obtained and cultured. S. pneumoniae isolates were tested by serotyping, antibiotic-resistance profiling, and multilocus sequence typing...
December 19, 2016: Journal of Microbiology, Immunology, and Infection, Wei Mian Yu Gan Ran za Zhi
https://www.readbyqxmd.com/read/28079822/successfully-treated-congenital-cystic-adenomatoid-malformation-by-open-fetal-surgery-a-care-compliant-case-report-of-a-5-year-follow-up-and-review-of-the-literature
#12
Dazhi Fan, Shuzhen Wu, Rui Wang, Yi Huang, Yao Fu, Wen Ai, Meng Zeng, Xiaoling Guo, Zhengping Liu
BACKGROUND: Congenital cystic adenomatoid malformation (CCAM) is a rare hamartomatous cystic lesion. Open fetal surgery currently provides a potential therapeutic option for management of a fetus with CCAM diagnosis. CASE SUMMARY: A 22-year-old G2P0 woman presented at (Equation is included in full-text article.)weeks' gestation for evaluation of a fetus with a left lung lesion and diagnosed as CCAM at (Equation is included in full-text article.)weeks' gestation...
January 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28078426/calreticulin-is-required-for-calcium-homeostasis-and-proper-pollen-tube-tip-growth-in-petunia
#13
Anna Suwińska, Piotr Wasąg, Przemysław Zakrzewski, Marta Lenartowska, Robert Lenartowski
Calreticulin is involved in stabilization of the tip-focused Ca (2+) gradient and the actin cytoskeleton arrangement and function that is required for several key processes driving Petunia pollen tube tip growth. Although the precise mechanism is unclear, stabilization of a tip-focused calcium (Ca(2+)) gradient seems to be critical for pollen germination and pollen tube growth. We hypothesize that calreticulin (CRT), a Ca(2+)-binding/buffering chaperone typically residing in the lumen of the endoplasmic reticulum (ER) of eukaryotic cells, is an excellent candidate to fulfill this role...
January 11, 2017: Planta
https://www.readbyqxmd.com/read/28074442/undifferentiated-carcinoma-of-the-liver-a-case-report-with-immunohistochemical-analysis
#14
Takashi Maeda, Hiroto Kayashima, Daisuke Imai, Kazuki Takeishi, Noboru Harada, Eiji Tsujita, Ayumi Matsuyama, Shinichi Tsutsui, Hiroyuki Matsuda
BACKGROUND: Undifferentiated carcinoma (UC) of the liver is extremely rare, and its clinicopathological characteristics have not been fully elucidated. CASE PRESENTATION: The present study reports the case of a 56-year-old male with UC of the liver. At 16 days post-admission, the patient suddenly succumbed due to intra-abdominal bleeding resulting from a ruptured liver. Macroscopic examination revealed that the hepatic parenchyma was almost completely replaced by innumerable minute nodules...
December 2017: Surgical Case Reports
https://www.readbyqxmd.com/read/28068953/pregnant-human-peripheral-leukocyte-migration-during-several-late-pregnancy-clinical-conditions-a-cross-sectional-observational-study
#15
Jun Takeda, Xin Fang, David M Olson
BACKGROUND: Parturition at term and preterm is characterized by sterile inflammatory processes occurring in the absence of infection whereby peripheral leukocytes infiltrate gestational tissues in response to chemotactic signals. In response to a homing signal, recruited leukocytes undergo diapedesis and extravasate through capillaries, migrating into stromal tissue. There they interact with resident immune and stromal cells to produce a mixture of matrix metalloproteinases, prostaglandins and cytokines including interleukin-1β (IL-1β) and IL-6 that in turn transform the uterus from pregnancy to parturition...
January 10, 2017: BMC Pregnancy and Childbirth
https://www.readbyqxmd.com/read/28068766/membrane-adhesion-through-bridging-by-multimeric-ligands
#16
Omar Alexander Amjad, Bortolo Matteo Mognetti, Pietro Cicuta, Lorenzo Di Michele
Ligand/receptor multivalent interactions have been exploited to drive the self-assembly of nanoparticles, hard colloids, and more recently compliant units including emulsion droplets and lipid vesicles. In deformable liposomes, the formation of links between two membranes produces morphological changes depending on the amount of ligands in the environment. Here we study a proof-of-concept biosensing system in which single lipid vesicles adhere to a flat supported lipid bilayer, both decorated with membrane-anchored biotinylated receptors...
January 10, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/28068594/prevention-of-spontaneous-preterm-birth-guidelines-for-clinical-practice-from-the-french-college-of-gynaecologists-and-obstetricians-cngof
#17
REVIEW
Loïc Sentilhes, Marie-Victoire Sénat, Pierre-Yves Ancel, Elie Azria, Guillaume Benoist, Julie Blanc, Gilles Brabant, Florence Bretelle, Stéphanie Brun, Muriel Doret, Chantal Ducroux-Schouwey, Anne Evrard, Gilles Kayem, Emeline Maisonneuve, Louis Marcellin, Stéphane Marret, Nicolas Mottet, Sabine Paysant, Didier Riethmuller, Patrick Rozenberg, Thomas Schmitz, Héloïse Torchin, Bruno Langer
In France, 60,000 neonates are born preterm every year (7.4%), half of them after the spontaneous onset of labor. Among preventable risk factors of spontaneous prematurity, only cessation of smoking is associated with decreased prematurity (level of evidence [LE]1). It is therefore recommended (Grade A). Routine screening and treatment of vaginal bacteriosis is not recommended in the general population (Grade A). The only population for which vaginal progesterone is recommended is that comprising asymptomatic women with singleton pregnancies, no history of preterm delivery, and a short cervix at 16-24 weeks of gestation (Grade B)...
December 30, 2016: European Journal of Obstetrics, Gynecology, and Reproductive Biology
https://www.readbyqxmd.com/read/28065366/-characteristics-of-induced-labors-at-marqu%C3%A3-s-de-valdecilla-university-hospital
#18
Marta González-Maestro, Izaskun Laurrieta-Saiz, Casandra García-González, Marta López-Mirones, Oihane Terán-Muñoz, Alicia Alonso-Salcines
OBJECTIVE: Induction of labor (IOL) is a common obstetric practice which has increased in recent decades. The main objective of this study is to describe the characteristics of induced labor at Marqués de Valdecilla University Hospital. METHOD: A descriptive, retrospective study was performed between January 1st and April 30t(h) of 2014, by reviewing medical histories. A standardised registration has been used to collect data. RESULTS: There were a total of 376 IOL, the incidence was 35...
January 3, 2017: Enfermería Clínica
https://www.readbyqxmd.com/read/28064549/mother-to-child-transmission-of-human-immunodeficiency-virus-hiv-among-hiv-infected-pregnant-women-on-highly-active-anti-retroviral-therapy-with-premature-rupture-of-membranes-at-term
#19
George Uchenna Eleje, Emeka Stephen Edokwe, Joseph Ifeanyichukwu Ikechebelu, Chinyere Ukamaka Onubogu, Ebele Francesca Ugochukwu, Princeston Chukwuemeka Okam, Adaobi Maryann Ibekwe
PURPOSE: To determine mother-to-child transmission (MTCT) rate and associated risk factors of human immune-deficiency virus (HIV) among HIV-infected pregnant women with term premature rupture of membranes (PROM) in comparison with those without PROM at term. MATERIALS AND METHODS: All optimally managed HIV-positive pregnant women of Nnamdi Azikiwe University Teaching Hospital, on highly active anti-retroviral therapy (HAART) who had PROM at term were enrolled. Maternal HIV-1 viral load was not assessed...
January 8, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28063545/pr%C3%A3-vention-de-l-infection-n%C3%A3-onatale-%C3%A3-streptocoques-du-groupe-b-d-apparition-pr%C3%A3-coce
#20
Deborah Money, Victoria M Allen
OBJECTIF: Analyser les données issues de la littérature et formuler des recommandations sur la prise en charge des parturientes en vue de prévenir l'infection néonatale à streptocoques du groupe B d'apparition précoce. Parmi les révisions clés que renferme la présente directive clinique mise à jour, on trouve des modifications quant aux recommandations en ce qui concerne les schémas posologiques d'antibioprophylaxie, les épreuves de sensibilité et la prise en charge des femmes présentant une rupture prématurée des membranes...
December 2016: Journal of Obstetrics and Gynaecology Canada: JOGC, Journal D'obstétrique et Gynécologie du Canada: JOGC
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