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https://www.readbyqxmd.com/read/28646689/association-between-maternal-urinary-chromium-and-premature-rupture-of-membranes-in-the-healthy-baby-cohort-study-in-china
#1
Sha Huang, Wei Xia, Yuanyuan Li, Bin Zhang, Aifen Zhou, Tongzhang Zheng, Zhengmin Qian, Zheng Huang, Shi Lu, Zhong Chen, Youjie Wang, Xinyun Pan, Wenqian Huo, Shuna Jin, Yangqian Jiang, Shunqing Xu
Chromium exposure from increasing industrial releases has become a threat for pregnant women due to the potential health effects on vulnerable embryos. Previous studies have suggested that maternal chromium exposure is associated with adverse birth outcomes, but no epidemiological research has been conducted to examine the relationship between chromium exposure and premature rupture of membranes (PROM). This study aimed at investigating the association of maternal urinary chromium exposure levels with PROM and was performed with 5408 pregnant women recruited from 2012 to 2014 in the city of Wuhan, China...
June 21, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28646578/the-impact-of-a-novel-transendometrial-approach-for-caesarean-myomectomy-on-obstetric-outcomes-of-subsequent-pregnancy-a-longitudinal-panel-study
#2
S Y Huang, S W Shaw, S Y Su, W F Li, H H Peng, P J Cheng
OBJECTIVE: To evaluate the obstetric and surgical outcomes of a novel transendometrial approach for myomectomy during caesarean section in subsequent pregnancies. DESIGN: Longitudinal panel study. SETTING: Chang Gung Memorial Hospital, Taiwan, with approximately 5000 births per annum. POPULATION: Pregnant women complicated with uterine myoma. METHOD: Sixty-three pregnant women who received transendometrial myomectomy during the first caesarean delivery reported a subsequent live pregnancy and planned an elective repeat caesarean delivery...
June 24, 2017: BJOG: An International Journal of Obstetrics and Gynaecology
https://www.readbyqxmd.com/read/28645088/risk-based-screening-combined-with-a-pcr-based-test-for-group-b-streptococci-diminishes-the-use-of-antibiotics-in-laboring-women
#3
Mohammed R Khalil, Niels Uldbjerg, Poul B Thorsen, Birgitte Henriksen, Jens K Møller
OBJECTIVE: To assess the performance of a polymerase chain reaction - group B streptococci test (PCR-GBS test) - in deciding antibiotic prophylaxis in term laboring women. STUDY DESIGN: In this observational study, we enrolled 902 unselected Danish term pregnant women. During labor, midwives obtained vaginal swabs that were used for both GBS cultures (reference standard) and for the PCR-GBS test. Furthermore, we recorded the presence of risk factors for EOGBS (Early Onset Group B Streptococcal disease): (1) Bacteriuria during current pregnancy, (2) Prior infant with EOGBS (3) Temperature above 38...
June 9, 2017: European Journal of Obstetrics, Gynecology, and Reproductive Biology
https://www.readbyqxmd.com/read/28644831/inflammatory-and-vascular-placental-lesions-are-associated-with-neonatal-amplitude-integrated-eeg-recording-in-early-premature-neonates
#4
Dorit Paz-Levy, Letizia Schreiber, Offer Erez, Sharon Goshen, Justin Richardson, VIadimir Drunov, Orna Staretz Chacham, Eilon Shany
INTRODUCTION: Placental histologic examination can assist in revealing the mechanism leading to preterm birth. Accumulating evidence suggests an association between intrauterine pathological processes, morbidity and mortality of premature infants, and their long term outcome. Neonatal brain activity is increasingly monitored in neonatal intensive care units by amplitude integrated EEG (aEEG) and indices of background activity and sleep cycling patterns were correlated with long term outcome...
2017: PloS One
https://www.readbyqxmd.com/read/28637726/interventions-for-preventing-mother-to-child-hiv-transmission-protocol-of-an-overview-of-systematic-reviews
#5
Windy Mariane Virenia Wariki, Erika Ota, Rintaro Mori, Charles S Wiysonge, Hacsi Horvath, Jennifer S Read
INTRODUCTION: Various interventions to prevent mother-to-child-transmission (MTCT) of HIV have been investigated and implemented. A number of systematic reviews assessing the efficacy of interventions for the prevention of MTCT of HIV reported antiretroviral prophylaxis, caesarean section before labour and before ruptured membranes, and complete avoidance of breastfeeding were efficacious for preventing MTCT of HIV. Recent WHO guidelines recommend lifelong antiretroviral therapy for all pregnant women for treatment of the woman's own HIV infection and for prevention of MTCT of HIV...
June 21, 2017: BMJ Open
https://www.readbyqxmd.com/read/28637100/women-s-expectations-and-experiences-of-rupture-of-membranes-and-views-of-the-potential-use-of-reagent-pads-for-detecting-amniotic-fluid
#6
Helen Spiby, Sara Borrelli, Anita J Hughes
AIMS: To explore first time mothers' expectations and experiences regarding rupture of membranes at term and their views on the potential use of reagent pads that detect amniotic fluid. BACKGROUND: There is little information available on women's experiences of spontaneous rupture of membranes, or interest in using methods to confirm rupture of membranes (e.g. reagent pads). DESIGN: Descriptive qualitative study, using focus groups and telephone interviews with women during pregnancy and after the birth of their first baby...
June 21, 2017: Journal of Advanced Nursing
https://www.readbyqxmd.com/read/28637060/comparison-of-azithromycin-versus-erythromycin-for-prolongation-of-latency-in-pregnancies-complicated-by-preterm-premature-rupture-of-membranes
#7
Matthew M Finneran, Ashley Appiageyei, Megan Templin, Heather Mertz
No abstract text is available yet for this article.
June 21, 2017: American Journal of Perinatology
https://www.readbyqxmd.com/read/28635292/assembly-morphology-diffusivity-and-indentation-of-hydrogel-supported-lipid-bilayers
#8
Tooba Shoaib, Prathima Chandra Nalam, Yichen He, Yuting Chen, Rosa M Espinosa-Marzal
Recognizing the limitations of solid-supported lipid bilayers to reproduce the behavior of cell membranes, including bendability, transmembrane protein inclusion and virus entry, this study describes a novel biomimetic system for cell membranes with the potential to overcome these and other limitations. The developed strategy utilizes a hydrogel with tunable mechanical behavior that resembles those of living cells as the soft support for the phospholipid bilayer, while a polyelectrolyte multilayer film serves as an intermediate layer to facilitate the self-assembly of the lipid bilayer on the soft cushion...
June 21, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/28634733/dynamic-properties-of-human-tympanic-membrane-after-exposure-to-blast-waves
#9
Warren G Engles, Xuelin Wang, Rong Z Gan
Blast overpressure causes dynamic damage to middle ear components, and tympanic membrane (TM) rupture is the most frequent middle ear injury. However, it is unclear how the blast waves change mechanical properties of the TM and affect sound transmission through the ear. This paper reports the current study on dynamic properties of the TM after exposure to blast waves by using acoustic loading and laser Doppler vibrometry (LDV). The TM specimens were prepared from human temporal bones following exposures to blast overpressure...
June 20, 2017: Annals of Biomedical Engineering
https://www.readbyqxmd.com/read/28629246/clinical-significance-of-primary-symptoms-in-women-with-placental-abruption
#10
Youwen Mei, Yonghong Lina
BACKGROUND: To evaluate the clinical significance of primary symptoms in women with placental abruption. METHODS: A retrospective study of 273 cases of placental abruption was performed. The subjects were classified into 2 groups according to primary symptoms: 210 cases of vaginal bleeding group and 63 cases of abdominal pain group. The clinical features, maternal and neonatal outcomes were compared between two groups. RESULTS: The incidence of preeclampsia and preterm birth in vaginal bleeding group was significantly lower than abdominal pain group, while the incidence of premature rupture of membrane (PROM) in the former group was higher than that in the latter group...
June 19, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28629240/foetoscopic-endotracheal-occlusion-feto-for-severe-isolated-left-sided-congenital-diaphragmatic-hernia-single-centre-polish-experience
#11
Przemyslaw Kosinski, Miroslaw Wielgos
OBJECTIVE: To present early experience with foetoscopic endotracheal occlusion (FETO) for congenital diaphragmatic hernia (CDH) in a new centre in Poland. METHODS: This was a prospective study in singleton pregnancies with CDH treated by FETO between 2014 and 2016 in the Medical University of Warsaw, Poland. FETO was carried out at 25.6-30.1 (median 27.7) weeks' gestation in 28 consecutive cases of isolated left-sided CDH with observed over expected lung area to head circumference ratio (o/e LHR) of 20...
June 20, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28628116/cadherin-composition-and-multicellular-aggregate-invasion-in-organotypic-models-of-epithelial-ovarian-cancer-intraperitoneal-metastasis
#12
Y Klymenko, O Kim, E Loughran, J Yang, R Lombard, M Alber, M S Stack
During epithelial ovarian cancer (EOC) progression, intraperitoneally disseminating tumor cells and multicellular aggregates (MCAs) present in ascites fluid adhere to the peritoneum and induce retraction of the peritoneal mesothelial monolayer prior to invasion of the collagen-rich submesothelial matrix and proliferation into macro-metastases. Clinical studies have shown heterogeneity among EOC metastatic units with respect to cadherin expression profiles and invasive behavior; however, the impact of distinct cadherin profiles on peritoneal anchoring of metastatic lesions remains poorly understood...
June 19, 2017: Oncogene
https://www.readbyqxmd.com/read/28626982/vaginal-seeding-or-vaginal-microbial-transfer-from-the-mother-to-the-cesarean-born-neonate-a-commentary-regarding-clinical-management
#13
Thor Haahr, Julie Glavind, Paul Axelsson, Margit Bistrup Fischer, Johanna Bjurström, Gudbjörg Andrésdóttir, Dorte Teilmann-Jørgensen, Ulla Bonde, Nina Olsén Sørensen, Margrethe Møller, Jens Fuglsang, Per G Ovesen, Jesper P Petersen, Jakob Stokholm, Tine D Clausen
Recent evidence suggests cesarean delivery (CD) to be a risk factor for inflammatory and metabolic diseases such as asthma, allergies and other chronic immune disorders in the child. One hypothetical pathogenesis of these associations has been proposed to be a disruption of the neonatal colonization (NC) after CD. To further support this hypothesis, it has been observed that the effect of CD on NC was different according to type of CD, i.e. planned or emergency, and that the risk of asthma in children born by CD was mitigated by rupture of membranes, though still increased compared to children delivered vaginally...
June 18, 2017: BJOG: An International Journal of Obstetrics and Gynaecology
https://www.readbyqxmd.com/read/28626423/ubiquitin-proteasome-collagen-cup-pathway-in-preterm-premature-rupture-of-fetal-membranes
#14
Xinliang Zhao, Xiaoyan Dong, Xiucui Luo, Jing Pan, Weina Ju, Meijiao Zhang, Peirong Wang, Mei Zhong, Yanhong Yu, W Ted Brown, Nanbert Zhong
Spontaneous preterm birth (sPTB) occurs before 37 gestational weeks, with preterm premature rupture of the membranes (PPROM) and spontaneous preterm labor (sPTL) as the predominant adverse outcomes. Previously, we identified altered expression of long non-coding RNAs (lncRNAs) and message RNAs (mRNAs) related to the ubiquitin proteasome system (UPS) in human placentas following pregnancy loss and PTB. We therefore hypothesized that similar mechanisms might underlie PPROM. In the current study, nine pairs of ubiquitin-proteasome-collagen (CUP) pathway-related mRNAs and associated lncRNAs were found to be differentially expressed in PPROM and sPTL...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28622703/qualitative-determination-of-human-chorionic-gonadotropin-in-vaginal-washings-for-the-early-diagnosis-of-premature-rupture-of-fetal-membranes
#15
Camila Buziquia Dartibale, Nelson Shozo Uchimura, Luiz Nery, Angelita Polato Schumeish, Liza Yurie Teruya Uchimura, Rosangela Getirana Santana, Taqueco Teruya Uchimura
Purpose This study aimed to evaluate and validate the qualitative human chorionic gonadotropin β subunit (β-hCG) test of the vaginal fluid washings of pregnant women with premature rupture of fetal membranes (PROM). Methods Cross-sectional study of pregnant women between gestational weeks 24 and 39 who underwent consultations in one of our institutions. They were divided into two groups: group A (pregnant women clinically diagnosed with PROM) and group B (pregnant women without loss of amniotic liquid)...
June 16, 2017: Revista Brasileira de Ginecologia e Obstetrícia
https://www.readbyqxmd.com/read/28621369/transport-of-nanoparticles-across-pulmonary-surfactant-monolayer-a-molecular-dynamics-study
#16
Yan Xu, Li Deng, Hao Ren, Xianren Zhang, Fang Huang, Tongtao Yue
Pulmonary nanodrug delivery is an emerging concept, especially for targeted lung cancer therapy. Once inhaled, the nanoparticles (NPs) acting as drug carriers need to efficiently cross the pulmonary surfactant monolayer (PSM) of lung alveoli, which act as the first barrier for external particles entering the lung. Herein, by performing molecular dynamics simulations, we study how inhaled NPs interact with the PSM, particularly focusing on the transport of NPs with different properties across the PSM. While hydrophilic NPs translocate directly across the PSM, transport of hydrophobic NPs is achieved as the PSM wraps them...
June 16, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28621288/photodvnamic-therapy-in-endodontics
#17
Zahed Mohammadi, Hamid Jafarzadeh, Sousan Shalavi, Jun-Ichiro Kinoshita
Commonly used irrigants do not always eradicate the entire microbial flora in infected root canals. Therefore, several other strategies, such as photodynamic therapy (PDT) have been developed. Photoactivated disinfection is based on the interaction of a photosensitive antibacterial agent and a light source. It uses a nontoxic dye named photosensitizer (PS) and low-intensity visible light. In oxygen presentation, these combine to produce some cytotoxic species. The PS molecules attach to bacteria membrane. Irradiation with a specific wavelength of the light may lead to the production of singlet oxygen, resulting in rupture of the microbial cell wall...
June 1, 2017: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/28621047/clinical-value-of-polymerase-chain-reaction-in-detecting-group-b-streptococcus-during-labor
#18
Dorothea Maria Koppes, Antonius Arnoldus Cornelis Maria Vriends, Michiel van Rijn, Antonine Dimphne van Heesewijk
AIM: To reduce the intrapartum use of antibiotics in women with prolonged rupture of the membranes (PROM) by restriction of antibiotics to women who are colonized with group B streptococci (GBS), as identified with the Cepheid Gene Xpert polymerase chain reaction (PCR) for detecting GBS. METHODS: We conducted a randomized controlled trial among full-term delivering women with PROM. Fifty-four women were enrolled, based on a power calculation with a significance level of 5% and a power of 95%...
June 2017: Journal of Obstetrics and Gynaecology Research
https://www.readbyqxmd.com/read/28620153/premature-labor-and-neonatal-septicemia-caused-by-capnocytophaga-ochracea
#19
Abdullah A Alhifany, Thamer A Almangour, Deanne E Tabb, David H Levine
BACKGROUND Capnocytophaga ochracea is a gram-negative anaerobic organism commonly found in human oral flora. It is characteristically sensitive to beta-lactams and resistant to aminoglycosides. CASE REPORT A 23-year-old woman presented with lower abdominal pain and was admitted for premature labor at 24-weeks of gestation. At presentation, the cervix was closed and the membrane was intact; however, contractions continued, the membrane subsequently ruptured before receiving any steroids or magnesium, and the mother gave birth to a 540-gram female baby...
June 16, 2017: American Journal of Case Reports
https://www.readbyqxmd.com/read/28619472/gasdermins-effectors-of-pyroptosis
#20
REVIEW
Stephen B Kovacs, Edward A Miao
Pyroptosis is a form of lytic programmed cell death initiated by inflammasomes, which detect cytosolic contamination or perturbation. This drives activation of caspase-1 or caspase-11/4/5, which cleave gasdermin D, separating its N-terminal pore-forming domain (PFD) from the C-terminal repressor domain (RD). The PFD oligomerizes to form large pores in the membrane that drive swelling and membrane rupture. Gasdermin D is one of six (in humans) gasdermin family members; several other gasdermins have also been shown to form pores that cause pyroptosis after cleavage to activate their PFDs...
June 12, 2017: Trends in Cell Biology
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