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https://www.readbyqxmd.com/read/28528174/prenatal-exposure-to-di-n-butyl-phthalate-disrupts-the-development-of-adult-leydig-cells-in-male-rats-during-puberty
#1
Xiaomin Chen, Linxi Li, Huitao Li, Hongguo Guan, Yaoyao Dong, Xiaoheng Li, Qiufan Wang, Qingquan Lian, Guoxin Hu, Ren-Shan Ge
Fetal exposure to di-n-butyl phthalate (DBP) causes the adult disease such as lower testosterone production and infertility. However, the mechanism is still unknown. The objective of the present study is to determine how DBP affects the involution of fetal Leydig cells during the neonatal period and how this event causes the delayed development of the adult Leydig cells during puberty. The pregnant Sprague Dawley dams were randomly divided into 3 groups and were gavaged with 0 (corn oil, the vehicle control), 100 or 500mg/kg DBP from gestational day 12 (G12) to G21...
May 17, 2017: Toxicology
https://www.readbyqxmd.com/read/28527570/mechanisms-of-glucocorticoid-action-during-development
#2
Jonathan T Busada, John A Cidlowski
Glucocorticoids are primary stress hormones produced by the adrenal cortex. The concentration of serum glucocorticoids in the fetus is low throughout most of gestation but surge in the weeks prior to birth. While their most well-known function is to stimulate differentiation and functional development of the lungs, glucocorticoids also play crucial roles in the development of several other organ systems. Mothers at risk of preterm delivery are administered glucocorticoids to accelerate fetal lung development and prevent respiratory distress...
2017: Current Topics in Developmental Biology
https://www.readbyqxmd.com/read/28527483/single-fetal-death-in-monochorionic-twin-pregnancy-co-twin-prognosis-and-neonatal-outcome
#3
Emídio Vale-Fernandes, Joana Dias, Belandina Gil, Alexandra Cadilhe
The incidence of single fetal death in twin pregnancy varies from 0.5% - 6.8%, leaving the surviving fetus with increased morbi-mortality. The prognosis is worse in monochorionic pregnancies. In addressing these cases it should be noted referral to tertiary center with differentiated perinatal support, induction of fetal lung maturation and termination of pregnancy if there's loss of fetal well-being or possibility of maternal complications and suspected neurological sequelae in the surviving fetus. The risk of iatrogenic prematurity should always be weighed with the possible consequences arising from the fetus staying in a hostile uterine environment...
February 27, 2017: Acta Médica Portuguesa
https://www.readbyqxmd.com/read/28526451/inter-delivery-weight-gain-and-risk-of-cesarean-delivery-following-a-prior-vaginal-delivery
#4
Annie M Dude, Abbi D Lane-Cordova, William A Grobman
BACKGROUND: Approximately 1/3 of all deliveries in the United States are via cesarean. Previous research indicates weight gain during pregnancy is associated with an increased risk of cesarean delivery. It remains unclear, however, whether and to what degree weight gain between deliveries (i.e., inter-delivery weight gain) is associated with cesarean delivery in a subsequent pregnancy following a vaginal delivery. OBJECTIVES: To determine whether inter-delivery weight gain is associated with an increased risk of intrapartum cesarean delivery following a vaginal delivery...
May 16, 2017: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28526027/description-of-inter-institutional-referrals-after-admission-for-labor-and-delivery-a-prospective-population-based-cohort-study-in-rural-maharashtra-india
#5
Archana B Patel, Amber Abhijeet Prakash, Camille Raynes-Greenow, Yamini V Pusdekar, Patricia L Hibberd
BACKGROUND: In 2008, the Indian government introduced financial assistance to encourage health facility deliveries. Facility births have increased, but maternal and neonatal morbidity and mortality have not decreased raising questions about the quality of care provided in facilities and access to a quality referral system. We evaluated the potential role of inter-institutional transfers of women admitted for labor and delivery on adverse maternal and neonatal outcomes in an ongoing prospective, population-based Maternal and Newborn Health Registry in Central India...
May 19, 2017: BMC Health Services Research
https://www.readbyqxmd.com/read/28525898/ginsenoside-rg3-inhibits-the-senescence-of-prostate-stromal-cells-through-down-regulation-of-interleukin-8-expression
#6
Yanfei Peng, Ran Zhang, Lingfei Kong, Yongmei Shen, Da Xu, Fang Zheng, Jianwei Liu, Qian Wu, Bona Jia, Ju Zhang
Senescent stromal cells support the development of prostate cancer and are considered potential therapeutic targets. This research evaluated the regulatory effects of ginsenoside Rg3 on the senescence of prostatic stromal cells pre-incubated in medium supplemented with 0.5% fetal bovine serum. The results revealed that ginsenoside Rg3 decreased the number of stromal cells positively stained with a senescent cell marker (senescence-associated β-galactosidase). Ginsenoside Rg3 also increased the viability of stromal cells and promoted cell cycle transition from G0/G1 to S phase, as well as inhibited the carcinoma-associated fibroblast-like phenotype in prostate stromal cells, through the up-regulation of smooth muscle cell markers SM22 and smooth muscle myosin heavy chain...
May 4, 2017: Oncotarget
https://www.readbyqxmd.com/read/28524771/mercury-levels-in-parturient-and-newborns-from-aveiro-region-portugal
#7
Ana Catarina Alves, Marta S Monteiro, Ana Luísa Machado, Mário Oliveira, Ana Bóia, Ana Correia, Nuno Oliveira, Amadeu M V M Soares, Susana Loureiro
Since the outbreak of methylmercury (MeHg) poisoning in Japan and Iraq, mercury (Hg) is classified as well-established teratogen. The Portuguese region of Aveiro faced some decades ago an environmental Hg contamination due to activities from a chlor-alkali plant. Until now, no apparent evaluation was conducted regarding prenatal exposure to Hg in this area. The main objectives of this study were to: i) assess maternal and fetal exposure to Hg in the Aveiro region using noninvasive biological matrices; ii) examine the influence of variables that may contribute to Hg exposure during pregnancy; and iii) improve knowledge regarding metal accumulation and distribution over the maternal-fetal-placental unit...
May 19, 2017: Journal of Toxicology and Environmental Health. Part A
https://www.readbyqxmd.com/read/28523122/sex-differences-in-rat-placental-development-from-pre-implantation-to-late-gestation
#8
J I Kalisch-Smith, D G Simmons, M Pantaleon, K M Moritz
BACKGROUND: A male fetus is suggested to be more susceptible to in utero and birth complications. This may be due in part to altered morphology or function of the XY placenta. We hypothesised that sexual dimorphism begins at the blastocyst stage with sex differences in the progenitor trophectoderm (TE) and its derived trophoblast lineages, as these cells populate the majority of cell types within the placenta. We investigated sex-specific differences in cell allocation in the pre-implantation embryo and further characterised growth and gene expression of the placental compartments from the early stages of the definitive placenta through to late gestation...
2017: Biology of Sex Differences
https://www.readbyqxmd.com/read/28522319/association-between-gestational-weight-gain-and-perinatal-outcomes-in-women-with-chronic-hypertension
#9
Lynn M Yee, Aaron B Caughey, Yvonne W Cheng
BACKGROUND: Gestational weight gain above or below the 2009 Institute of Medicine guidelines has been associated with adverse maternal and neonatal outcomes. Although it has been well established that excess gestational weight gain is associated with the development of gestational hypertension and preeclampsia, the relationship between gestational weight gain and adverse perinatal outcomes among women with pregestational (chronic) hypertension is less clear. OBJECTIVE: The objective of this study was to examine the relationship between gestational weight gain above and below IOM guidelines and perinatal outcomes in a large, population-based cohort of women with chronic hypertension...
May 15, 2017: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28521219/antifouling-zwitterionic-hydrogel-coating-improves-hemocompatibility-of-activated-carbon-hemoadsorbent
#10
Nana Cai, Qingsi Li, Jiamin Zhang, Tong Xu, Weiqiang Zhao, Jing Yang, Lei Zhang
Activated carbon has been widely used in hemoperfusion treatments. However, its performance has been significantly compromised by their poor hemocompatibility. In this work, we developed a novel antifouling adsorbent based on zwitterionic poly-carboxybetaine (PCB) hydrogel and powdered activated carbon (PAC) to improve hemocompatibility. We found this new adsorbent (PCB-PAC) was highly stable with negligible leakage of activated carbon debris. It could efficiently resist protein adsorption and avoid any hemolysis effect...
April 20, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28521112/prevalence-of-externalizing-disorders-and-autism-spectrum-disorder-among-children-with-fetal-alcohol-spectrum-disorder-systematic-review-and-meta-analysis
#11
Shannon Lange, Jürgen Rehm, Evdokia Anagnostou, Svetlana Popova
Due to their central nervous system impairments, children with Fetal Alcohol Spectrum Disorder (FASD) commonly exhibit externalizing behaviours such as hyperactivity, impulsivity, and/or delinquency. The purpose of the current study was to estimate the prevalence of neurodevelopmental disorders with prominent externalizing behaviours, namely Attention-Deficit Hyperactivity Disorder (ADHD), Conduct Disorder (CD), Oppositional Defiant Disorder (ODD), as well as Autism Spectrum Disorder (ASD) among children with FASD...
May 18, 2017: Biochemistry and Cell Biology, Biochimie et Biologie Cellulaire
https://www.readbyqxmd.com/read/28520809/antenatal-coffee-and-tea-consumption-and-the-effect-on-birth-outcome-and-hypertensive-pregnancy-disorders
#12
Timothy van der Hoeven, Joyce L Browne, Cuno S P M Uiterwaal, Cornelis K van der Ent, Diederick E Grobbee, Geertje W Dalmeijer
BACKGROUND AND OBJECTIVE: Coffee and tea are commonly consumed during pregnancy. While several of their components, like caffeine, have strong pharmacological effects, the effect on the unborn fetus remains unclear. Caffeine intake has been associated with abortion, preterm birth and fetal growth restriction, but a general consensus on caffeine restriction is still lacking. We aimed to investigate antenatal coffee, tea and caffeine consumption and the effect on birth weight and length, gestational age at birth and hypertensive disorders in pregnancy...
2017: PloS One
https://www.readbyqxmd.com/read/28515209/for-a-healthier-future-a-virtuous-cycle-for-reducing-exposure-to-persistent-organic-pollutants
#13
REVIEW
Chisato Mori, Emiko Todaka
In the modern society, people are exposed to various pollutants during their lifetime. Worldwide, the status of children's health has changed in recent decades. Some studies have attempted to identify the causes of these changes and whether they relate to pollutant exposure; however, such attempts have faced major challenges because human life is complex, involving many social and environmental factors. Several long-term cohort studies are being conducted to determine the relationship between diseases and social and environmental factors in children...
May 17, 2017: Journal of Epidemiology and Community Health
https://www.readbyqxmd.com/read/28512479/in-vitro-cytotoxicity-comparison-of-mta-fillapex-ah-26-and-apatite-root-canal-sealer-at-different-setting-times
#14
Farnaz Jafari, Marzieh Aghazadeh, Sanaz Jafari, Faraz Khaki, Fahime Kabiri
INTRODUCTION: This study aimed to compare the cytotoxicity of MTA Fillapex, AH-26 and Apatite root canal sealers at different times after mixing. METHODS AND MATERIALS: In this in vitro study, MTA Fillapex, AH-26 and Apatite root canal sealer were spilled uniformly by 40 µm mesh in a 96-well plate. Then, human fetal foreskin fibroblast cell line (HFFF2) were added to each sealer cell culture medium. Cytotoxicity was measured using MTT assay after 24, 48 and 72 h and seven days...
2017: Iranian Endodontic Journal
https://www.readbyqxmd.com/read/28511860/first-trimester-fetal-echocardiography-identification-of-cardiac-structures-for-screening-from-6-to-13%C3%A2-weeks-gestational-age
#15
Darren Hutchinson, Angela McBrien, Lisa Howley, Yuka Yamamoto, Priya Sekar, Tarek Motan, Venu Jain, Winnie Savard, Lisa K Hornberger
BACKGROUND: Early fetal echocardiography (FE), performed at 12 to 16 weeks' gestational age (GA), can be used to screen for fetal heart disease akin to that routinely performed in the second trimester. The efficacy of FE at earlier GAs has not been as well explored, particularly with recent advances in ultrasound technology. The aim of this study was to evaluate the efficacy of early FE in assessing fetal heart structure, and the added benefit of color Doppler (CD), from as early as 6 weeks through to 13(+6) weeks' GA...
May 13, 2017: Journal of the American Society of Echocardiography
https://www.readbyqxmd.com/read/28511050/maternal-distress-in-late-pregnancy-alters-obstetric-outcomes-and-the-expression-of-genes-important-for-placental-glucocorticoid-signalling
#16
Katie L Togher, Eimear Treacy, Gerard W O'Keeffe, Louise C Kenny
The experience of maternal distress in pregnancy is often linked with poorer obstetric outcomes for women as well as adverse outcomes for offspring. Alterations in placental glucocorticoid signalling and subsequent increased fetal exposure to cortisol have been suggested to underlie this relationship. In the current study, 121 pregnant women completed the Perceived Stress Scale, State Trait Anxiety Inventory and Edinburgh Postnatal Depression Scale in the third trimester of pregnancy. Placental samples were collected after delivery...
May 8, 2017: Psychiatry Research
https://www.readbyqxmd.com/read/28510072/fetal-ventriculomegaly-diagnosis-treatment-and-future-directions
#17
Jared M Pisapia, Saurabh Sinha, Deborah M Zarnow, Mark P Johnson, Gregory G Heuer
Fetal ventriculomegaly (VM) refers to the enlargement of the cerebral ventricles in utero. It is associated with the postnatal diagnosis of hydrocephalus. VM is clinically diagnosed on ultrasound and is defined as an atrial diameter greater than 10 mm. Because of the anatomic detailed seen with advanced imaging, VM is often further characterized by fetal magnetic resonance imaging (MRI). Fetal VM is a heterogeneous condition with various etiologies and a wide range of neurodevelopmental outcomes. These outcomes are heavily dependent on the presence or absence of associated anomalies and the direct cause of the ventriculomegaly rather than on the absolute degree of VM...
May 16, 2017: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
https://www.readbyqxmd.com/read/28509326/polish-gynecological-society-recommendations-for-labor-induction
#18
Dorota Bomba-Opoń, Krzysztof Drews, Hubert Huras, Piotr Laudański, Tomasz Paszkowski, Mirosław Wielgoś
Labor induction involves artificial stimulation of childbirth before the natural, spontaneous onset of labor. It is one of the most common procedures in modern obstetrics. The frequency of labor induction has doubled in recent decades due to the development of perinatology and methods of monitoring fetal well-being in particular. Currently, one in five pregnant women and 30-40% of women delivering vaginally undergo this procedure. Reasons for induction include reduction of the perinatal mortality and morbidity of the fetus and newborn, as well as the reduction of maternal complications...
2017: Ginekologia Polska
https://www.readbyqxmd.com/read/28509324/three-dimensional-neurosonography-a-novel-field-in-fetal-medicine
#19
Michał Lipa, Ritsuko Kimata Pooh, Mirosław Wielgoś
Neurosonography is a promising technique for prenatal diagnosis, combining features of ultrasound imaging with fetal neurology. The brain is a three-dimensional structure, therefore observing brain structure in the three basic planes (sagittal, coronal and axial) is mandatory. The anterior fontanelle and sagittal suture may serve as acoustic ultrasound windows in the transvaginal brain scan, allowing to obtain high-resolution neuroimages of the intracranial structures. Furthermore, three-dimensional (3D) ultrasound combined with the transvaginal brain approach provides detailed and sophisticated neuroimages...
2017: Ginekologia Polska
https://www.readbyqxmd.com/read/28507642/diagnostic-imaging-of-pregnant-women-the-role-of-magnetic-resonance-imaging
#20
Monika Bekiesińska-Figatowska, Anna Romaniuk-Doroszewska, Sylwia Szkudlińska-Pawlak, Agnieszka Duczkowska, Jarosław Mądzik, Martyna Szopa-Krupińska, Tomasz M Maciejewski
BACKGROUND: Presentation of magnetic resonance imaging (MRI) findings in pregnant women in the Department of Diagnostic Imaging, Institute of Mother and Child, Warsaw, Poland. MATERIAL/METHODS: Forty-three symptomatic pregnant women underwent MRI between 9 and 33 weeks of gestation (mean of 23 weeks). Moreover, we included 2 pregnant women who underwent fetal MRI and had incidental abnormalities. RESULTS: In 9 cases, we excluded the suspected brain abnormalities...
2017: Polish Journal of Radiology
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