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Prenatal exposure

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https://www.readbyqxmd.com/read/29778942/transcriptomic-and-methylomic-analysis-reveal-the-toxicological-effect-of-2-3-7-8-tetrachlorodibenzodioxin-on-human-embryonic-stem-cell
#1
Keng Po Lai, Jing Woei Li, Ting Fung Chan, Andy Chen, Cherie Yin Lau Lee, William Shu Biu Yeung, Chris Kong Chu Wong
Cumulating epidemiological studies demonstrated that environmental exposure to endocrine disrupting chemicals (EDCs) during the early stages of fetal development is associated with the increase in disease susceptibility in later life. The fetal developmental plasticity is considered as a protective mechanism against an undesirable prenatal environment. Dioxin is one of the environmental contaminants and is considered a diabetogenic factor. Experimental animal and human epidemiological studies have revealed that dioxin exposure was associated with insulin resistance and altered beta cell function...
May 10, 2018: Chemosphere
https://www.readbyqxmd.com/read/29778808/maternal-treatment-with-a-placental-targeted-antioxidant-mitoq-impacts-offspring-cardiovascular-function-in-a-rat-model-of-prenatal-hypoxia
#2
Mais M Aljunaidy, Jude S Morton, Raven Kirschenman, Tom Phillips, C Patrick Case, Christy-Lynn M Cooke, Sandra T Davidge
Intrauterine growth restriction, a common consequence of prenatal hypoxia, is a leading cause of fetal morbidity and mortality with a significant impact on population health. Hypoxia may increase placental oxidative stress and lead to an abnormal release of placental-derived factors, which are emerging as potential contributors to developmental programming. Nanoparticle-linked drugs are emerging as a novel method to deliver therapeutics targeted to the placenta and avoid risking direct exposure to the fetus...
May 17, 2018: Pharmacological Research: the Official Journal of the Italian Pharmacological Society
https://www.readbyqxmd.com/read/29778775/prenatal-exposures-to-tobacco-and-cannabis-associations-with-adult-electronic-cigarette-use
#3
Natacha M De Genna, Gale A Richardson, Lidush Goldschmidt, Nancy L Day, Marie D Cornelius
INTRODUCTION: Prenatal exposures to tobacco and cannabis are associated with combustible cigarette use. This study evaluated pathways from these prenatal exposures to adult electronic cigarette use. We tested whether there were indirect effects of these prenatal exposures via childhood behavior dysregulation, early tobacco use, and adolescent tobacco dependence. METHODS: Telephone interviews were conducted with 427 adult offspring (22-33 years old) from 3 prenatal cohorts with trimester-specific data on exposures to tobacco, alcohol, and cannabis...
May 5, 2018: Drug and Alcohol Dependence
https://www.readbyqxmd.com/read/29775869/mathematics-intervention-for-children-with-fetal-alcohol-spectrum-disorder-a-replication-and-extension-of-the-math-interactive-learning-experience-mile-program
#4
Katrina Kully-Martens, Jacqueline Pei, Julie Kable, Claire D Coles, Gail Andrew, Carmen Rasmussen
BACKGROUND: Individuals with fetal alcohol spectrum disorders (FASD) experience deficits in behavior, cognition, and academic functioning resulting from prenatal alcohol exposure (PAE). Although receiving intervention for developmental disabilities is a strong protective factor against negative outcomes in FASD, intervention research in this population is in its infancy. AIMS: The purpose of this study was to replicate and extend a mathematics intervention, the Math Interactive Learning Experience (MILE) program, which was developed in the USA specifically for children with FASD...
May 15, 2018: Research in Developmental Disabilities
https://www.readbyqxmd.com/read/29772261/maternal-immune-activation-with-staphylococcal-enterotoxin-a-produces-unique-behavioral-changes-in-c57bl-6-mouse-offspring
#5
Ruthy Glass, Sara Norton, Nicholas Fox, Alexander W Kusnecov
Stimulation of the immune system during pregnancy, known as maternal immune activation (MIA), can cause long-lasting neurobiological and behavioral changes in the offspring. This phenomenon has been implicated in the etiology of developmental psychiatric disorders, such as autism and schizophrenia. Much of this evidence is predicated on animal models using bacterial agents such as LPS and/or viral mimics such as Poly I:C, both of which act through toll-like receptors. However, fewer studies have examined the role of direct activation of maternal T-cells during pregnancy using microbial agents...
May 14, 2018: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/29769809/managing-infants-born-to-mothers-who-have-used-opioids-during-pregnancy
#6
Thierry Lacaze-Masmonteil, Pat O'Flaherty
The incidence of infant opioid withdrawal has grown rapidly in many countries, including Canada, in the last decade, presenting significant health and early brain development concerns. Increased prenatal exposure to opioids reflects rising prescription opioid use as well as the presence of both illegal opiates and opioid-substitution therapies. Infants are at high risk for experiencing symptoms of abstinence or withdrawal that may require assessment and treatment. This practice point focuses specifically on the effect(s) of opioid withdrawal and current management strategies in the care of infants born to mothers with opioid dependency...
May 2018: Paediatrics & Child Health
https://www.readbyqxmd.com/read/29769646/long-term-impacts-of-prenatal-synthetic-glucocorticoids-exposure-on-functional-brain-correlates-of-cognitive-monitoring-in-adolescence
#7
Liesa Ilg, Manousos Klados, Nina Alexander, Clemens Kirschbaum, Shu-Chen Li
The fetus is highly responsive to the level of glucocorticoids in the gestational environment. Perturbing glucocorticoids during fetal development could yield long-term consequences. Extending prior research about effects of prenatally exposed synthetic glucocorticoids (sGC) on brain structural development during childhood, we investigated functional brain correlates of cognitive conflict monitoring in term-born adolescents, who were prenatally exposed to sGC. Relative to the comparison group, behavioral response consistency (indexed by lower reaction time variability) and a brain correlate of conflict monitoring (the N2 event-related potential) were reduced in the sGC exposed group...
May 16, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29769550/prenatal-alcohol-exposure-increases-the-susceptibility-to-develop-aggressive-prolactinomas-in-the-pituitary-gland
#8
Shaima Jabbar, Kenneth Reuhl, Dipak K Sarkar
Excess alcohol use is known to promote development of aggressive tumors in various tissues in human patients, but the cause of alcohol promotion of tumor aggressiveness is not clearly understood. We used an animals model of fetal alcohol exposure that is known to promote tumor development and determined if alcohol programs the pituitary to acquire aggressive prolactin-secreting tumors. Our results show that pituitaries of fetal alcohol-exposed rats produced increased levels of intra-pituitary aromatase protein and plasma estrogen, enhanced pituitary tissue growth, and upon estrogen challenge developed prolactin-secreting tumors (prolactinomas) that were hemorrhagic and often penetrated into the surrounding tissue...
May 16, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29769424/sex-specific-response-of-renal-na-k-atpase-to-prenatal-angiotensin-2-exposure-and-increased-salt-intake-in-offspring
#9
L Jagmasevic-Mezesova, P Svitok, B Kalocayova, M Zeman, N Vrbjar
In rodents, increased angiotensin 2 (Ang2) during pregnancy increases blood pressure and decreases salt sensitivity in the offspring. To explore the underlying mechanisms, this study evaluated the effects of prenatal Ang2 exposure on the activity of renal Na,K-ATPase, which is one of the main systems that maintains sodium ion homeostasis in an organism. Moreover, this study also investigated the impact of a higher-salt diet on the enzyme activity in the offspring in a sex-dependent manner. Pregnant Wistar rats were implanted with osmotic minipumps that continuously released Ang2 (2 μg/kg/h) for 2 weeks...
February 2018: Journal of Physiology and Pharmacology: An Official Journal of the Polish Physiological Society
https://www.readbyqxmd.com/read/29769150/adipose-tissue-uncoupling-protein-1-levels-and-function-are-increased-in-a-mouse-model-of-developmental-obesity-induced-by-maternal-exposure-to-high-fat-diet
#10
E Bytautiene Prewit, C Porter, M La Rosa, N Bhattarai, H Yin, P Gamble, T Kechichian, L S Sidossis
With brown adipose tissue (BAT) becoming a possible therapeutic target to counteract obesity, the prenatal environment could represent a critical window to modify BAT function and browning of white AT. We investigated if levels of uncoupling protein 1 (UCP1) and UCP1-mediated thermogenesis are altered in offspring exposed to prenatal obesity. Female CD-1 mice were fed a high-fat (HF) or standard-fat (SF) diet for 3 months before breeding. After weaning, all pups were placed on SF. UCP1 mRNA and protein levels were quantified using quantitative real-time PCR and Western blot analysis, respectively, in brown (BAT), subcutaneous (SAT) and visceral (VAT) adipose tissues at 6 months of age...
May 17, 2018: Journal of Developmental Origins of Health and Disease
https://www.readbyqxmd.com/read/29768418/obgyn-screening-for-environmental-exposures-a-call-for-action
#11
N M Grindler, A A Allshouse, E Jungheim, T L Powell, T Jansson, A J Polotsky
BACKGROUND: Prenatal exposures have known adverse effects on maternal and neonatal outcomes. Professional societies recommend routine screening for environmental, occupational, and dietary exposures to reduce exposures and their associated sequelae. OBJECTIVE: Our objective was to determine the frequency of environmental exposure screening by obstetricians and gynecologists (OBGYNs) at initial patient visits. STUDY DESIGN: Practicing OBGYNs were approached at the University of Colorado and by social media...
2018: PloS One
https://www.readbyqxmd.com/read/29765163/polyunsaturated-fatty-acid-status-at-birth-childhood-growth-and-cardiometabolic-risk-a-pooled-analysis-of-the-mefab-and-rhea-cohorts
#12
Nikos Stratakis, Marij Gielen, Katerina Margetaki, Renate H M de Groot, Maria Apostolaki, Georgia Chalkiadaki, Marina Vafeiadi, Vasiliki Leventakou, Marianna Karachaliou, Roger W Godschalk, Manolis Kogevinas, Euripides G Stephanou, Maurice P Zeegers, Leda Chatzi
BACKGROUND/OBJECTIVES: Polyunsaturated fatty acid (PUFA) status during pregnancy has been suggested to influence offspring obesity and cardiometabolic health. We assessed whether prenatal PUFA exposure is associated with rapid infant growth, childhood BMI, and cardiometabolic profile. SUBJECTS/METHODS: In the Dutch MEFAB (n = 266) and Greek RHEA (n = 263) cohorts, we measured n-3 and n-6 PUFA concentrations in cord blood phospholipids, which reflect fetal exposure in late pregnancy...
May 16, 2018: European Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/29765129/intrauterine-smoke-exposure-deregulates-lung-function-pulmonary-transcriptomes-and-in-particular-insulin-like-growth-factor-igf-1-in-a-sex-specific-manner
#13
Stefan Dehmel, Petra Nathan, Sabine Bartel, Natalia El-Merhie, Hagen Scherb, Katrin Milger, Gerrit John-Schuster, Ali Oender Yildirim, Machteld Hylkema, Martin Irmler, Johannes Beckers, Bianca Schaub, Oliver Eickelberg, Susanne Krauss-Etschmann
Prenatal exposure to tobacco smoke is a significant risk-factor for airway disease development. Furthermore, the high prevalence of pregnant smoking women requires the establishment of strategies for offspring lung protection. Therefore, we here aimed to understand the molecular mechanism of how prenatal smoke exposure affects fetal lung development. We used a mouse model recapitulating clinical findings of prenatally exposed children, where pregnant mice were exposed to smoke until c-section or spontaneous delivery, and offspring weight development and lung function was monitored...
May 15, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29764806/temporal-efficacy-of-a-sulforaphane-based-broccoli-sprout-diet-in-prevention-of-breast-cancer-through-modulation-of-epigenetic-mechanisms
#14
Yuanyuan Li, Phillip Buckhaults, Shizhao Li, Trygve O Tollefsbol
Breast cancer is the most common cancer and the second leading cause of cancer death among women. An important risk factor for breast cancer is individual genetic background which is initially generated early in human life; for example, during the processes of embryogenesis and fetal development in utero. Bioactive dietary components such as sulforaphane (SFN), an isothiocyanate from cruciferous vegetables including broccoli sprouts (BSp), cabbage and kale, has been shown to reduce the risk of developing many common cancers through regulation of epigenetic mechanisms...
May 15, 2018: Cancer Prevention Research
https://www.readbyqxmd.com/read/29764539/effect-of-chronic-social-stress-on-prenatal-transfer-of-antitetanus-immunity-in-captive-breeding-rhesus-macaques-macaca-mulatta
#15
Rachelle L Stammen, Joyce K Cohen, Tracy L Meeker, Maria M Crane, Rama R Amara, Sakeenah L Hicks, Jerrold S Meyer, Kelly F Ethun
Because tetanus can cause significant morbidity and mortality in NHP, colonywide vaccination with tetanus toxoid is recommendedfor outdoor breeding colonies of rhesus macaques, with primary immunizations commonly given to infants at 6 mo of age followed by booster vaccines every 10 y. Maternal antibodies are thought to offer protective immunity to infants younger than 6 mo. However, historical colony data from the Yerkes National Primate Research Center show a higher incidence of tetanus among infants (≤ 6 mo old) born to subordinate dams...
May 15, 2018: Journal of the American Association for Laboratory Animal Science: JAALAS
https://www.readbyqxmd.com/read/29763474/early-prenatal-alcohol-exposure-alters-imprinted-gene-expression-in-placenta-and-embryo-in-a-mouse-model
#16
Heidi Marjonen, Mia Toivonen, Laura Lahti, Nina Kaminen-Ahola
Prenatal alcohol exposure (PAE) can harm the embryonic development and cause life-long consequences in offspring's health. To clarify the molecular mechanisms of PAE we have used a mouse model of early alcohol exposure, which is based on maternal ad libitum ingestion of 10% (v/v) ethanol for the first eight days of gestation (GD 0.5-8.5). Owing to the detected postnatal growth-restricted phenotype in the offspring of this mouse model and both prenatal and postnatal growth restriction in alcohol-exposed humans, we focused on imprinted genes Insulin-like growth factor 2 (Igf2), H19, Small Nuclear Ribonucleoprotein Polypeptide N (Snrpn) and Paternally expressed gene 3 (Peg3), which all are known to be involved in embryonic and placental growth and development...
2018: PloS One
https://www.readbyqxmd.com/read/29762798/a-prenatal-standardized-patient-experience-for-medical-students-on-their-family-medicine-clerkship
#17
Sarah E Stumbar, Suzanne Minor, Marquita Samuels
BACKGROUND AND OBJECTIVES: Students on their family medicine clerkship at Herbert Wertheim College of Medicine get little clinical exposure to obstetric care, which is not commonly provided by family physicians in urban settings. To address this, we added to our clerkship didactic curriculum a 2-hour session involving a standardized patient (SP). The SP is collectively interviewed by the student group during four simulated prenatal visits, each of which present a different complication of pregnancy...
May 2018: Family Medicine
https://www.readbyqxmd.com/read/29762671/motor-impairments-correlate-with-social-deficits-and-restricted-neuronal-loss-in-an-environmental-model-of-autism
#18
Tareq Al Sagheer, Obelia Haida, Anais Balbous, Maureen Francheteau, Emmanuel Matas, Pierre-Olivier Fernagut, Mohamed Jaber
Background: Motor impairments are amongst the earliest and most consistent signs of autism spectrum disorders (ASD) but are not used as diagnostic criteria. In addition, the relationship between motor and cognitive impairments and their respective neural substrates remain unknown. Methods: Here, we aimed at determining whether a well-acknowledged animal model of ASD, the valproic acid (VPA) model, displays motor impairments and whether they may correlate with social deficits and neuronal loss within motor brain areas...
May 12, 2018: International Journal of Neuropsychopharmacology
https://www.readbyqxmd.com/read/29762532/pregnancy-trimester-specific-exposure-to-ambient-air-pollution-and-child-respiratory-health-outcomes-in-the-first-2-years-of-life-effect-modification-by-maternal-pre-pregnancy-bmi
#19
Shu-E Soh, Anne Goh, Oon Hoe Teoh, Keith M Godfrey, Peter D Gluckman, Lynette Pei-Chi Shek, Yap-Seng Chong
Prenatal exposure to air pollution is associated with childhood respiratory health; however, no previous studies have examined maternal pre-pregnancy body mass index (BMI) as a potential effect modifier. We investigated whether maternal pre-pregnancy BMI modified the association of trimester-specific air pollution divided into quartiles of exposure (Q1⁻4) on respiratory health in the Growing Up in Singapore towards healthy Outcomes (GUSTO) study ( n = 953) in 2-year-old children. For episodes of wheezing, children of overweight/obese mothers and who were exposed to particulate matter less than 2...
May 15, 2018: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/29760445/elevated-prenatal-anti-m%C3%A3-llerian-hormone-reprograms-the-fetus-and-induces-polycystic-ovary-syndrome-in-adulthood
#20
Brooke Tata, Nour El Houda Mimouni, Anne-Laure Barbotin, Samuel A Malone, Anne Loyens, Pascal Pigny, Didier Dewailly, Sophie Catteau-Jonard, Inger Sundström-Poromaa, Terhi T Piltonen, Federica Dal Bello, Claudio Medana, Vincent Prevot, Jerome Clasadonte, Paolo Giacobini
Polycystic ovary syndrome (PCOS) is the main cause of female infertility worldwide and corresponds with a high degree of comorbidities and economic burden. How PCOS is passed on from one generation to the next is not clear, but it may be a developmental condition. Most women with PCOS exhibit higher levels of circulating luteinizing hormone, suggestive of heightened gonadotropin-releasing hormone (GnRH) release, and anti-Müllerian hormone (AMH) as compared to healthy women. Excess AMH in utero may affect the development of the female fetus...
May 14, 2018: Nature Medicine
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