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https://www.readbyqxmd.com/read/28453607/determining-best-strategies-for-maternally-targeted-pertussis-vaccination-using-an-individual-based-model
#1
Patricia Therese Campbell, Jodie McVernon, Nicholas Geard
Rising pertussis incidence has prompted a number of countries to implement maternally-targeted vaccination to protect vulnerable infants, but questions remain about optimal design of such vaccination strategies. We simulated pertussis transmission within an individual based model parameterized to match Australian conditions, explicitly linking infants and their mothers to estimate the effectiveness of alternative maternally-targeted vaccination strategies (antenatal versus postnatal delivery) and the benefit of revaccination over multiple pregnancies...
April 27, 2017: American Journal of Epidemiology
https://www.readbyqxmd.com/read/28449356/fetal-head-circumference-and-subpubic-angle-are-independent-risk-factors-for-unplanned-cesarean-and-operative-delivery
#2
Giuseppe Rizzo, Elisa Aiello, Costanza Bosi, Francesco D' Antonio, Domenico Arduini
INTRODUCTION: To ascertain whether combined ultrasound assessment of fetal head circumference (HC) and maternal subpubic angle (SPA) prior to the onset of labour may predict the likelihood of an unplanned operative delivery (UOD) in nulliparous women at term. MATERIAL AND METHODS: Prospective cohort study of singleton pregnancies in cephalic presentation. Pregnancies experiencing UOD secondary to fetal distress were excluded. HC was assessed transabdominally while SPA values were obtained from a reconstructed coronal plane on three-dimensional(3D) ultrasound performed trans-labially at 36-38 weeks of gestation...
April 27, 2017: Acta Obstetricia et Gynecologica Scandinavica
https://www.readbyqxmd.com/read/28448718/cannabis-use-by-women-during-pregnancy-does-not-influence-infant-dna-methylation-of-the-dopamine-receptor-drd4
#3
Peter D Fransquet, Delyse Hutchinson, Craig A Olsson, Steve Allsop, Elizabeth J Elliott, Lucinda Burns, Richard Mattick, Richard Saffery, Joanne Ryan
BACKGROUND: Maternal cannabis use in pregnancy is linked with long-term adverse behavioral outcomes in offspring. Epigenetic processes established in utero that affect dopaminergic (reward) signaling may mediate risks. Associations between cannabis use and offspring DNA methylation have not been investigated; however, maternal tobacco smoking in pregnancy is associated with distinct patterns of DNA methylation at birth and beyond. OBJECTIVES: To determine whether maternal cannabis use is associated with methylation of the dopamine receptor gene DRD4 promoter in infants...
April 27, 2017: American Journal of Drug and Alcohol Abuse
https://www.readbyqxmd.com/read/28448694/the-joint-effect-of-air-pollution-exposure-and-copy-number-variation-on-risk-for-autism
#4
Dokyoon Kim, Heather Volk, Santhosh Girirajan, Sarah Pendergrass, Molly A Hall, Shefali S Verma, Rebecca J Schmidt, Robin L Hansen, Debashis Ghosh, Yunin Ludena-Rodriguez, Kyoungmi Kim, Marylyn D Ritchie, Irva Hertz-Picciotto, Scott B Selleck
Autism spectrum disorder is a complex trait with a high degree of heritability as well as documented susceptibility from environmental factors. In this study the contributions of copy number variation, exposure to air pollutants, and the interaction between the two on autism risk, were evaluated in the population-based case-control Childhood Autism Risks from Genetics and Environment (CHARGE) Study. For the current investigation, we included only those CHARGE children (a) who met criteria for autism or typical development and (b) for whom our team had conducted both genetic evaluation of copy number burden and determination of environmental air pollution exposures based on mapping addresses from the pregnancy and early childhood...
April 27, 2017: Autism Research: Official Journal of the International Society for Autism Research
https://www.readbyqxmd.com/read/28447764/sevoflurane-anesthesia-in-pregnant-rats-negatively-affects-nerve-function-in-offspring-potentially-via-inhibition-of-the-wnt-%C3%AE-catenin-pathway
#5
Yiyao Wang, Yu Li, Qunzhi Xing, Xuechan G Han, Xu Dong, Yiping Lu, Mintao Zhou
Due to the rapid development of medical technology used to perform intrauterine procedures during pregnancy, the number of patients receiving fetal surgery under general anesthesia is increasing. The aim of the present study was to determine the effects of anesthetics on the offspring of rats, and to identify the potential mechanisms underlying these effects. On day 14 of pregnancy, Sprague‑Dawley rats were equally divided into the following 3 groups (n=9): Control group (n=3), 3% sevoflurane group (n=3) and 4% sevoflurane group (n=3)...
March 13, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28446232/continuous-quality-improvement-interventions-to-improve-long-term-outcomes-of-antiretroviral-therapy-in-women-who-initiated-therapy-during-pregnancy-or-breastfeeding-in-the-democratic-republic-of-congo-design-of-an-open-label-parallel-group-randomized-trial
#6
Marcel Yotebieng, Frieda Behets, Bienvenu Kawende, Noro Lantoniaina Rosa Ravelomanana, Martine Tabala, Emile W Okitolonda
BACKGROUND: Despite the rapid adoption of the World Health Organization's 2013 guidelines, children continue to be infected with HIV perinatally because of sub-optimal adherence to the continuum of HIV care in maternal and child health (MCH) clinics. To achieve the UNAIDS goal of eliminating mother-to-child HIV transmission, multiple, adaptive interventions need to be implemented to improve adherence to the HIV continuum. METHODS: The aim of this open label, parallel, group randomized trial is to evaluate the effectiveness of Continuous Quality Improvement (CQI) interventions implemented at facility and health district levels to improve retention in care and virological suppression through 24 months postpartum among pregnant and breastfeeding women receiving ART in MCH clinics in Kinshasa, Democratic Republic of Congo...
April 26, 2017: BMC Health Services Research
https://www.readbyqxmd.com/read/28446183/effect-of-different-artificial-shrinkage-methods-when-applied-before-blastocyst-vitrification-on-perinatal-outcomes
#7
Caizhu Wang, Guixue Feng, Bo Zhang, Hong Zhou, Jinhui Shu, Ruoyun Lin, Huanhua Chen, Zhulian Wu
BACKGROUND: In recent years, single blastocyst transfer combined with vitrification has been applied widely, which can maximize the cumulative pregnancy rate in per oocyte retrieval cycles and minimize the multiple pregnancy rate. Thus, the guarantee for these is the effectiveness of vitrified blastocyst. Studies has shown that AS of the blastocoel cavity prior to vitrification can reduce injuries, increase the thawed blastocyst survival rate and implantation rate. Several AS methods have been established...
April 26, 2017: Reproductive Biology and Endocrinology: RB&E
https://www.readbyqxmd.com/read/28446046/use-of-embryo-culture-supernatant-to-improve-clinical-outcomes-in-assisted-reproductive-technology-a-systematic-review-and-meta-analysis
#8
Mohan Shashikant Kamath, Mariano Mascarenhas, Richard Kirubakaran, Raju Nair, Abhijit Kulkarni
We planned a systematic review and meta-analysis of randomized clinical trials (RCTs) to examine the best available evidence regarding the intrauterine instillation of embryo culture supernatant prior to embryo transfer in ART. The outcomes were: (i) live birth; (ii) clinical pregnancy; (iii) multiple pregnancy; and (iv) miscarriage rates. Five RCTs were considered eligible and available for qualitative synthesis. Due to clinical heterogeneity, results from only two trials were combined for the meta-analysis...
April 26, 2017: Human Fertility: Journal of the British Fertility Society
https://www.readbyqxmd.com/read/28444614/combined-gnrh-agonist-and-human-chorionic-gonadotropin-trigger-improves-icsi-cycle-outcomes-in-patients-with-history-of-poor-fertilization
#9
Rony T Elias, Nigel Pereira, Lisa Artusa, Amelia G Kelly, Monica Pasternak, Jovana P Lekovich, Gianpiero D Palermo, Zev Rosenwaks
PURPOSE: The purpose of this study was to investigate the utility of a combined GnRH-agonist (GnRH-a) and human chorionic gonadotropin (hCG) trigger in improving ICSI cycle outcomes in patients with poor fertilization history after standard hCG trigger in prior ICSI cycles. METHODS: Retrospective cohort study. Patients with a fertilization rate of <20% in at least two prior ICSI cycles who subsequently underwent another ICSI cycle with hCG trigger were compared to those who underwent another ICSI cycle with a combined GnRH-a and hCG trigger...
April 13, 2017: Journal of Assisted Reproduction and Genetics
https://www.readbyqxmd.com/read/28444499/hair-trace-element-and-electrolyte-content-in-women-with-natural-and-in-vitro-fertilization-induced-pregnancy
#10
Anatoly V Skalny, Alexey A Tinkov, Irina Voronina, Olga Terekhina, Margarita G Skalnaya, Yulia Kovas
The objective of the present study was to perform comparative analysis of hair trace element content in women with natural and in vitro fertilization (IVF)-induced pregnancy. Hair trace element content in 33 women with IVF-induced pregnancy and 99 age- and body mass index-matched control pregnant women (natural pregnancy) was assessed using inductively coupled plasma mass spectrometry. The results demonstrated that IVF-pregnant women are characterized by significantly lower hair levels of Cu, Fe, Si, Zn, Ca, Mg, and Ba at p < 0...
April 25, 2017: Biological Trace Element Research
https://www.readbyqxmd.com/read/28444191/risks-of-miscarriage-or-preterm-delivery-in-trichorionic-and-dichorionic-triplet-pregnancies-with-embryo-reduction-versus-expectant-management-a-systematic-review-and-meta-analysis
#11
C Anthoulakis, T Dagklis, A Mamopoulos, A Athanasiadis
STUDY QUESTION: Is pregnancy outcome in triplet pregnancies improved with embryo reduction (ER) to twins compared to expectant management? SUMMARY ANSWER: In trichorionic triplet pregnancies, ER to twins reduces the risk of preterm birth (<34 weeks) without significantly increasing the risk of miscarriage (<24 weeks), whereas in dichorionic triplet pregnancies, the results are inconclusive. WHAT IS KNOWN ALREADY: Triplet pregnancies are associated with a high risk of miscarriage and preterm birth...
April 21, 2017: Human Reproduction
https://www.readbyqxmd.com/read/28443017/premature-brain-aging-in-baboons-resulting-from-moderate-fetal-undernutrition
#12
Katja Franke, Geoffrey D Clarke, Robert Dahnke, Christian Gaser, Anderson H Kuo, Cun Li, Matthias Schwab, Peter W Nathanielsz
Contrary to the known benefits from a moderate dietary reduction during adulthood on life span and health, maternal nutrient reduction during pregnancy is supposed to affect the developing brain, probably resulting in impaired brain structure and function throughout life. Decreased fetal nutrition delivery is widespread in both developing and developed countries, caused by poverty and natural disasters, but also due to maternal dieting, teenage pregnancy, pregnancy in women over 35 years of age, placental insufficiency, or multiples...
2017: Frontiers in Aging Neuroscience
https://www.readbyqxmd.com/read/28440898/comparing-induction-of-labour-with-oral-misoprostol-or-foley-catheter-at-term-cost-effectiveness-analysis-of-a-randomised-controlled-multi-centre-non-inferiority-trial
#13
Mieke L G Ten Eikelder, Gert-Jan van Baaren, Katrien Oude Rengerink, Marta Jozwiak, Jan Willem de Leeuw, Gunilla Kleiverda, Inge Evers, Karin de Boer, Josien Brons, Kitty W M Bloemenkamp, Ben W Mol
OBJECTIVE: To assess the costs of labour induction with oral misoprostol compared to Foley catheter. DESIGN: Economic evaluation alongside a randomised controlled trial. SETTING: Obstetric departments of six tertiary and 23 secondary care hospitals in the Netherlands. POPULATION: Women with a viable term singleton pregnancy in cephalic presentation, intact membranes, an unfavourable cervix (Bishop score <6) without a previous caesarean section, had been randomised for labour induction with oral misoprostol (n = 924) or Foley catheter (n = 921)...
April 25, 2017: BJOG: An International Journal of Obstetrics and Gynaecology
https://www.readbyqxmd.com/read/28440693/maternal-history-of-child-abuse-and-obesity-risk-in-offspring-mediation-by-weight-in-pregnancy
#14
Stephanie A Leonard, Lucia C Petito, David H Rehkopf, Lorrene D Ritchie, Barbara Abrams
BACKGROUND: Women's experience of childhood adversity may contribute to their children's risk of obesity. Possible causal pathways include higher maternal weight and gestational weight gain, which have been associated with both maternal childhood adversity and obesity in offspring. METHODS: This study included 6718 mother-child pairs from the National Longitudinal Survey of Youth 1979 in the United States (1979-2012). We applied multiple log-binomial regression models to estimate associations between three markers of childhood adversity (physical abuse, household alcoholism, and household mental illness) and offspring obesity in childhood...
April 25, 2017: Childhood Obesity
https://www.readbyqxmd.com/read/28439421/factors-associated-with-cesarean-delivery-rates-a-single-institution-experience
#15
Spencer McClelland, Naomi Gorfinkle, Alan A Arslan, Maria Teresa Benedetto-Anzai, Teresa Cheon, Yuzuru Anzai
BACKGROUND: The aim of this study was to identify factors associated with variability in Cesarean delivery (CD) rates amongst providers at a single institution. METHODS: A retrospective cohort analysis was carried out on all births at NYU Langone Medical Center from 2005-2013. Data was collected for subjects and linked to diagnosis codes for singleton and twin deliveries. Descriptive characteristics were generated for all deliveries, and inferential analysis was performed including multiple covariates for singleton deliveries in the 2010-2013 cohort, including both univariate and multivariate regression analyses to identify factors associated with higher CD rates...
2017: Maternal Health, Neonatology and Perinatology
https://www.readbyqxmd.com/read/28438984/comparison-of-multiple-non-invasive-methods-of-measuring-cardiac-output-during-pregnancy-reveals-marked-heterogeneity-in-the-magnitude-of-cardiac-output-change-between-women
#16
John W Petersen, Jing Liu, Yueh-Yun Chi, Melissa Lingis, R Stan Williams, Alice Rhoton-Vlasak, Mark S Segal, Kirk P Conrad
Various non-invasive methods are available to measure cardiac output (CO) during pregnancy. We compared serial measures of CO using various methods to determine which provided the least variability. Ten patients with spontaneous pregnancy had estimation of CO at baseline prior to becoming pregnant and at the end of the first and third trimesters. Echocardiographic data were used to estimate CO using the Teichholz method, Simpson's biplane method, and the Doppler determined velocity time integral (VTI) method...
April 2017: Physiological Reports
https://www.readbyqxmd.com/read/28438062/associations-of-maternal-obesity-and-smoking-status-with-perinatal-outcomes
#17
Julie K Phillips, Sarah E King, Ira M Bernstein, Joan M Skelly, Stephen T Higgins
Maternal obesity and smoking are associated with adverse perinatal outcomes. These prevalent conditions contribute to health disparities. In this study we examine whether maternal BMI moderates the impact of smoking cessation on short-term perinatal outcomes. This is a secondary analysis of assessments conducted from several prospective clinical trials examining the efficacy of incentives to promote smoking cessation during pregnancy. Participants were randomly assigned to receive financial incentives contingent upon smoking abstinence or a control condition...
April 24, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28437764/the-use-of-lithium-for-the-treatment-of-bipolar-disorder-recommendations-from-clinical-practice-guidelines
#18
Gin S Malhi, Danielle Gessler, Tim Outhred
BACKGROUND: Lithium is an effective mood stabilizer that is used principally for the management of bipolar disorder (BD). Its administration is complex and often requires sophisticated management and assiduous monitoring. When considering the use of lithium therapy for bipolar disorder, clinicians are advised to refer to recommendations outlined in clinical practice guidelines (CPGs); but because of varying emphases placed by different international CPGs, recommendations addressing the practical use of lithium lack consistency...
March 27, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/28437579/mosaic-trisomy-1q-a-recurring-chromosome-anomaly-that-is-a-diagnostic-challenge-and-is-associated-with-a-fryns-like-phenotype
#19
Kathleen M Bone, Judy E Chernos, Renee Perrier, A Micheil Innes, Francois P Bernier, Ross McLeod, Mary Ann Thomas
OBJECTIVE: Trisomy of the long arm of chromosome 1 is a very rare cytogenetic anomaly that is difficult to diagnose due to tissue-limited mosaicism. This study aimed to further characterize the prenatal and postnatal findings associated with this anomaly, including the first reported chromosomal microarray finding. METHOD: This is a retrospective study of 6 cases of mos 46,X,der(Y)t(Y;1)(q12;q21)/46,XY diagnosed both pre- and postnatally. Detailed clinical features and pregnancy outcome were documented...
April 24, 2017: Prenatal Diagnosis
https://www.readbyqxmd.com/read/28435340/stress-and-its-predictors-in-pregnant-women-a-study-in-saudi-arabia
#20
Anwar E Ahmed, Alhanouf N Albalawi, Asmaa A Alshehri, Rand M AlBlaihed, Majid A Alsalamah
BACKGROUND: Although stress during pregnancy has negative effects on children's development and pregnant women's health, no study has assessed stress and its predictors among pregnant Saudi women. The aim of this study was to assess stress and identify its predictors in a sample of pregnant Saudi women. METHODS: A correlational study was carried out at King Abdulaziz Medical City in Riyadh, Kingdom of Saudi Arabia, on 438 pregnant women who attended the obstetrics/gynecology clinic...
2017: Psychology Research and Behavior Management
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