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https://www.readbyqxmd.com/read/28935154/inducible-knockout-of-syncytin-a-gene-leads-to-an-extensive-placental-vasculature-deficiency-implications-for-preeclampsia
#1
Shan Qiao, Fengchao Wang, Haibin Chen, Shi-Wen Jiang
Syncytin-1, a human endogenous retroviral envelope gene (HERVW1), is specifically expressed in placental trophoblasts and mediates the formation of syncytiotrophoblasts through a fusogenic activity. Syncytin-1 expression deficiency has been repeatedly observed in preeclamptic/IUGR placentas. Previous gene knockout studies indicated that in mice, complete syncytin-A null mouse embryos died in utero between 11.5 and 13.5days of gestation. However, the complete knockout model could not fully recapitulate the mid- to third-trimester, time-specific syncytin-1 deficiency in preeclampsia patients...
September 18, 2017: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/28931691/vertical-transmission-of-hepatitis-c-virus-variable-transmission-bottleneck-and-evidence-of-mid-gestation-in-utero-infection
#2
Sébastien Fauteux-Daniel, Ariane Larouche, Virginie Calderon, Jonathan Boulais, Chanel Béland, Doris G Ransy, Marc Boucher, Valérie Lamarre, Normand Lapointe, Isabelle Boucoiran, Armelle Le Campion, Hugo Soudeyns
Hepatitis C virus (HCV) can be transmitted from mother to child during pregnancy and childbirth. However, the timing and precise biologic mechanisms that are involved in this process are incompletely understood, as are the determinants that influence transmission of particular HCV variants. Here we report results of a longitudinal assessment of HCV quasispecies diversity and composition in 5 cases of vertical HCV transmission, including 3 women coinfected with HIV-1. The population structure of HCV variant spectra based on E2 envelope gene sequences (nucleotide positions 1491-1787), including hypervariable regions 1 and 2, was characterized using next-generation sequencing and median joining network analysis...
September 20, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28884206/neonatal-congenital-lung-tumors-the-importance-of-mid-second-trimester-ultrasound-as-a-diagnostic-clue
#3
Stephan L Waelti, Laurent Garel, Dorothée Dal Soglio, Françoise Rypens, Michael Messerli, Josée Dubois
BACKGROUND: The differential diagnosis for primary lung masses in neonates includes a variety of developmental abnormalities; it also consists of the much rarer congenital primary lung tumors: cystic pleuropulmonary blastoma (cystic PPB), fetal lung interstitial tumor (FLIT), congenital peribronchial myofibroblastic tumor (CPMT), and congenital fibrosarcoma. Radiologic differentiation between malformations and tumors is often very challenging. OBJECTIVE: The objective was to establish distinctive features between developmental pulmonary abnormalities and primary lung tumors...
September 7, 2017: Pediatric Radiology
https://www.readbyqxmd.com/read/28863997/micronized-progesterone-pretreatment-affects-the-inflammatory-response-of-human-gestational-tissues-and-the-cervix-to-lipopolysaccharide-stimulation
#4
Tai-Ho Hung, Szu-Fu Chen, Chung-Pu Wu, Meng-Jen Li, Yi-Lin Yeh, T'sang-T'ang Hsieh
INTRODUCTION: Vaginal administration of micronized progesterone (utrogestan capsule, UG) reduces the risk of preterm birth (PTB) in asymptomatic women with a sonographic short cervix at mid-trimester or with a prior history of spontaneous PTB; however, its exact mechanisms remain unclear. We hypothesized that UG limits the inflammatory processes within the gestational tissues and the cervix. METHODS: Fetal membranes and villous tissues were obtained from normal term placentas from women with cesarean delivery before labor onset...
September 2017: Placenta
https://www.readbyqxmd.com/read/28859781/no-261-prenatal-screening-for-fetal-aneuploidy-in-singleton-pregnancies
#5
David Chitayat, Sylvie Langlois, R Douglas Wilson
OBJECTIVE: To develop a Canadian consensus document on maternal screening for fetal aneuploidy (e.g., Down syndrome and trisomy 18) in singleton pregnancies. OPTIONS: Pregnancy screening for fetal aneuploidy started in the mid 1960s, using maternal age as the screening test. New developments in maternal serum and ultrasound screening have made it possible to offer all pregnant patients a non-invasive screening test to assess their risk of having a fetus with aneuploidy to determine whether invasive prenatal diagnostic testing is necessary...
September 2017: Journal of Obstetrics and Gynaecology Canada: JOGC, Journal D'obstétrique et Gynécologie du Canada: JOGC
https://www.readbyqxmd.com/read/28791980/the-influence-of-maternal-anthropometric-characteristics-on-the-birth-size-of-term-singleton-south-east-nigerian-newborn-infants
#6
C U Onubogu, I Egbuonu, E F Ugochukwu, A S Nwabueze, O Ugochukwu
OBJECTIVE: This study examined the usefulness of maternal anthropometry in predicting the birth size of term singleton newborn infants at NAUTH, Nnewi, Nigeria. MATERIALS AND METHODS: A cross-sectional study was conducted among 301 mother/newborn infant pairs. RESULTS: The mean birth weight was 3.27 ± 0.60 kg whereas the incidence of low birth weight and fetal macrosomia were 8.0% and 11.3%, respectively. The anthropometric indices varied in their ability to detect newborn babies who experienced abnormal intrauterine growth...
July 2017: Nigerian Journal of Clinical Practice
https://www.readbyqxmd.com/read/28767198/optimal-cut-off-score-of-the-edinburgh-postnatal-depression-scale-for-major-depressive-episode-during-pregnancy-in-japan
#7
Kentaro Usuda, Daisuke Nishi, Emi Okazaki, Miyuki Makino, Yo Sano
AIM: Depression during pregnancy adversely affects both mother and child. As antenatal depression is a predictor of postnatal depression, early detection might prevent postnatal depression. The Edinburgh Postnatal Depression Scale (EPDS) is frequently used during the perinatal period, but the cut-off score during pregnancy has not been verified for the Japanese population. We aimed to clarify the optimal EPDS cut-off score in mid-pregnancy in Japan. METHODS: We recruited pregnant women aged 20 years or older at 12-24 weeks of gestation and those who scored ≥ 9 on the EPDS were invited to participate in this study...
August 2, 2017: Psychiatry and Clinical Neurosciences
https://www.readbyqxmd.com/read/28757229/prenatal-particulate-matter-exposure-and-wheeze-in-mexican-children-effect-modification-by-prenatal-psychosocial-stress
#8
Maria José Rosa, Allan C Just, Itai Kloog, Ivan Pantic, Lourdes Schnaas, Alison Lee, Sonali Bose, Yueh-Hsiu Mathilda Chiu, Hsiao-Hsien Leon Hsu, Brent Coull, Joel Schwartz, Sheldon Cohen, Martha María Téllez Rojo, Robert O Wright, Rosalind J Wright
BACKGROUND: Air pollution exposure in childhood is associated with greater incidence and exacerbation of asthma, particularly in children whose parents report high levels of psychological stress. However, this interaction has not been completely elucidated in pregnancy. OBJECTIVE: To examine whether the association between prenatal exposure to particulate matter no larger than 2.5 μm in diameter (PM2.5) and wheeze in children is modified by prenatal stress. METHODS: Mexican women were recruited during pregnancy (N = 552)...
September 2017: Annals of Allergy, Asthma & Immunology
https://www.readbyqxmd.com/read/28750298/global-gene-expression-changes-of-amniotic-fluid-cell-free-rna-according-to-fetal-development
#9
Ji Hyon Jang, Yong Wook Jung, Sung Han Shim, Yun Jeong Sin, Kyoung Jin Lee, Sung Shin Shim, Eun Hee Ahn, Dong Hyun Cha
OBJECTIVE: This study aimed to evaluate the effect of in utero fetal development on the cell-free transcriptome of amniotic fluid by analyzing global gene expression in the amniotic fluid supernatant obtained at different gestational ages from euploid fetuses STUDY DESIGN: Thirteen amniotic fluid samples were obtained from five individuals at 28 gestational weeks and eight individuals at full term pregnancy. Transcriptome data previously analyzed by our group from 14 euploid mid-trimester amniotic fluid samples were used for comparative analysis...
July 15, 2017: European Journal of Obstetrics, Gynecology, and Reproductive Biology
https://www.readbyqxmd.com/read/28747409/spot-urine-protein-measurements-in-normotensive-pregnancies-pregnancies-with-isolated-proteinuria-and-preeclampsia
#10
Andrea Kattah, Natasa Milic, Wendy M White, Vesna D Garovic
We performed a prospective, longitudinal study of pregnant women presenting to their first obstetrics visits to characterize the changes in spot urine protein-to-creatinine (UPCR) and albumin-to-creatinine ratios (UACR) in normotensive pregnancies, as well as identify clinical characteristics associated with isolated proteinuria and preeclampsia. We measured spot urinary albumin, protein, and creatinine at the first prenatal visit, end of the second trimester, and at delivery. In normotensive pregnancy (n=142), we found that from the beginning of pregnancy to delivery, UACR increased by a median (interquartile range (IQR)) of 14...
July 26, 2017: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
https://www.readbyqxmd.com/read/28747197/prenatal-and-postnatal-bisphenol-a-exposure-and-social-impairment-in-4-year-old-children
#11
Youn-Hee Lim, Sanghyuk Bae, Bung-Nyun Kim, Choong Ho Shin, Young Ah Lee, Johanna Inhyang Kim, Yun-Chul Hong
BACKGROUND: Prenatal and postnatal exposure to bisphenol A (BPA) may affect early brain development. Rodent studies suggest that prenatal and postnatal neurodevelopmental toxicity from BPA exposure may manifest as social deficits in offspring. We investigated the association between prenatal and postnatal exposure to BPA and social impairments in a sample of 4-year-old children. METHODS: We recruited second-trimester pregnant women between 2008 and 2011, and measured their creatinine-adjusted prenatal urine BPA levels...
July 26, 2017: Environmental Health: a Global Access Science Source
https://www.readbyqxmd.com/read/28733063/do-early-fetal-measurements-and-nuchal-translucency-correlate-with-term-birth-weight
#12
Rinat Hackmon, Clifford Librach, Richard Burwick, Nicole Rodrigues, Dan Farine, Howard Berger
OBJECTIVE: Traditionally, physiological variation in fetal weight is believed to emerge during the latter half of pregnancy. Although recent evidence suggests that crown-rump length (CRL) and nuchal translucency (NT) measured at 11-14 weeks correlate with abnormal fetal growth, findings have been limited by dating accuracy in spontaneous gestations. Therefore, we sought to determine whether CRL or NT measurements correlated with term birth weight (BW) or BW ratio in a cohort of IVF pregnancies, in which the date of conception is precisely known...
July 18, 2017: Journal of Obstetrics and Gynaecology Canada: JOGC, Journal D'obstétrique et Gynécologie du Canada: JOGC
https://www.readbyqxmd.com/read/28721142/maternal-lipids-associated-with-large-for-gestational-age-birth-weight-in-women-with-type-1-diabetes-results-from-a-prospective-single-center-study
#13
Paweł Gutaj, Ewa Wender-Ożegowska, Jacek Brązert
INTRODUCTION: Despite improvement in diabetes care over the years, the incidence of macrosomia in type 1 diabetic mothers is still very high and even shows an increasing tendency. It is suggested that other factors that maternal hyperglycemia might be associated with excessive fetal growth in diabetic mothers. The aim of this study was to determine whether maternal lipids might contribute to high rates of large-for-gestational-age (LGA) newborns in women with type 1 diabetes (T1DM). MATERIAL AND METHODS: This prospective, single-center study was performed in a population of women with T1DM admitted to the perinatal center for women with diabetes...
June 2017: Archives of Medical Science: AMS
https://www.readbyqxmd.com/read/28714604/antidepressants-antipsychotics-and-mood-stabilizers-in-pregnancy-what-do-we-know-and-how-should-we-treat-pregnant-women-with-depression
#14
REVIEW
Asher Ornoy, Liza Weinstein-Fudim, Zivanit Ergaz
Depression is generally treated with antidepressants, but may often need antipsychotics and mood stabilizers. We discuss the updated data regarding the safety in pregnancy of antidepressants and antipsychotics, except selective serotonin reuptake inhibitors, and their possible impact on the long-term development of the offspring. Several earlier studies demonstrated a slight increase in the rate of major anomalies following maternal tricyclic antidepressant treatment, but most current literature shows their relative safety in pregnancy...
July 17, 2017: Birth defects research
https://www.readbyqxmd.com/read/28710882/mid-trimester-preterm-premature-rupture-of-membranes-pprom-etiology-diagnosis-classification-international-recommendations-of-treatment-options-and-outcome
#15
REVIEW
Michael Tchirikov, Natalia Schlabritz-Loutsevitch, James Maher, Jörg Buchmann, Yuri Naberezhnev, Andreas S Winarno, Gregor Seliger
Mid-trimester preterm premature rupture of membranes (PPROM), defined as rupture of fetal membranes prior to 28 weeks of gestation, complicates approximately 0.4%-0.7% of all pregnancies. This condition is associated with a very high neonatal mortality rate as well as an increased risk of long- and short-term severe neonatal morbidity. The causes of the mid-trimester PPROM are multifactorial. Altered membrane morphology including marked swelling and disruption of the collagen network which is seen with PPROM can be triggered by bacterial products or/and pro-inflammatory cytokines...
July 15, 2017: Journal of Perinatal Medicine
https://www.readbyqxmd.com/read/28708576/adiponectin-concentration-in-mid-trimester-amniotic-fluid-varies-with-the-%C3%AE-amylase-level-and-maternal-and-neonatal-outcomes
#16
Joseph Chervenak, Mio Sawai, Lamis El Kabab, Rahul Lohana, Daniel Skupski, Steven S Witkin
OBJECTIVE: Factors influencing intraamniotic adiponectin levels and their functional significance remain incompletely elucidated. We prospectively measured adiponectin in amniotic fluid and identified its associations with maternal parameters, mediators in amniotic fluid and pregnancy outcomes. STUDY DESIGN: Mid-trimester amniotic fluid from 571 women was tested for adiponectin, interleukin (IL)-6, IL-8 and α-amylase by enzyme-linked immunosorbant assay (ELISA), after which clinical data were obtained...
July 14, 2017: Journal of Perinatal Medicine
https://www.readbyqxmd.com/read/28673792/cervical-cerclage-placement-decreases-local-levels-of-proinflammatory-cytokines-in-patients-with-cervical-insufficiency
#17
Stephany P Monsanto, Silvia Daher, Erika Ono, Karen Priscilla Tezotto Pendeloski, Évelyn Trainá, Rosiane Mattar, Chandrakant Tayade
BACKGROUND: Cervical insufficiency is characterized by premature, progressive dilation and shortening of the cervix during pregnancy. If left unattended, this can lead to the prolapse and rupture of the amniotic membrane, which usually results in midtrimester pregnancy loss or preterm birth. Previous studies have shown that proinflammatory cytokines such as interleukin-1β, interleukin-6, interleukin-8, and tumor necrosis factor alpha are up-regulated in normal parturition but are also associated with preterm birth...
June 30, 2017: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28666083/maternal-thyroid-function-prepregnancy-obesity-and-gestational-weight-gain-the-generation-r-study-a-prospective-cohort-study
#18
Fernanda M Collares, Tim I M Korevaar, Albert Hofman, Eric A P Steegers, Robin P Peeters, Vincent W V Jaddoe, Romy Gaillard
OBJECTIVE: Maternal prepregnancy obesity and excessive gestational weight gain are associated with pregnancy complications. Thyroid function is related to differences in body mass index (BMI) in adult populations. We examined the associations of maternal thyroid function in early pregnancy with maternal BMI and weight gain during pregnancy. DESIGN AND METHODS: In a population-based prospective cohort study among 5726 mothers, we measured maternal TSH and FT4 levels at 13...
June 30, 2017: Clinical Endocrinology
https://www.readbyqxmd.com/read/28627028/common-findings-in-late-gestation-fetal-echocardiography
#19
Lauren Tague, Mary T Donofrio, Amanda Fulgium, Robert McCarter, Catherine Limperopoulos, David N Schidlow
OBJECTIVES: Fetal echocardiography provides detailed information about cardiac structure and function in utero. Limited information is available regarding normal findings late in pregnancy. We therefore sought to identify and describe common cardiac findings in late gestation. METHODS: Fetuses with structurally normal hearts were identified in mid gestation within a subset of pregnant women in a prospective study. The atrioventricular valves, right and left atria, aortic isthmus and ductus arteriosus dimensions and flow abnormalities, aneurysm of the septum primum, and presence and grade of tricuspid regurgitation were assessed throughout pregnancy...
June 19, 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/28622940/feasibility-of-performing-non-contrast-magnetic-resonance-angiography-in-pregnant-subjects-with-familial-aortopathies
#20
William E Moody, Luke Pickup, Emma Plunkett, John Fryearson, Paul F Clift, R Katie Morris, Peter J Thompson, Sara Thorne, Lucy E Hudsmith
BACKGROUND: Pregnancy is associated with an increased risk of aortic pathology. We sought to assess the feasibility of performing non-contrast 3D steady-state free-precession (SSFP) magnetic resonance angiography (MRA) in pregnant subjects with inherited aortopathy. METHODS: Fifteen pregnant subjects (age 27±4yr) with positive genotyping for aortopathy (Marfan, Loeys-Dietz, Ehlers-Danlos) and/or a family history of aortic dissection underwent non-contrast 3D-SSFP MRA at 1...
June 2, 2017: International Journal of Cardiology
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