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https://www.readbyqxmd.com/read/29670815/transatlantic-air-travel-in-the-third-trimester-of-pregnancy-does-it-affect-the-fetus
#1
B Petrikovsky, M Terrani, L Sichinava
Most commercial airlines allow pregnant women to fly up to 36 weeks of gestation. Available information suggests that noise, vibration, and cosmic radiation present a small risk for the pregnant air traveler. The goal of the study was to assess the possible effect of transatlantic flights on the condition of the third-trimester fetus. In total, 112 patients were recruited into the study between January 2005 and June 2016. All underwent a transatlantic flight in the third trimester of pregnancy. All underwent nonstress test before and within 12 hours after the transatlantic flight, and 24 hours later...
April 2018: American Journal of Perinatology Reports
https://www.readbyqxmd.com/read/29607579/ultrasonographic-prediction-of-antepartum-deterioration-of-growth-restricted-fetuses-after-late-preterm
#2
Ryo Yamamoto, Keisuke Ishii, Erika Nakajima, Jun Sasahara, Nobuaki Mitsuda
AIM: To examine the predictive value of ultrasound parameters for antepartum non-reassuring fetal status (NRFS) in fetal growth restriction (FGR) cases after late preterm. METHODS: Retrospective review of singleton FGR cases before 37 weeks gestation who delivered after 34 weeks gestation was performed. The association between ultrasound parameters that was assessed from 34 to 36 weeks gestation and the development of antepartum NRFS that was diagnosed by nonstress test and biophysical profile was analyzed by using multivariate Cox proportional hazards analyses...
April 2, 2018: Journal of Obstetrics and Gynaecology Research
https://www.readbyqxmd.com/read/29484256/catechol-o-methyltransferase-val158met-polymorphism-associates-with-affect-and-cortisol-levels-in-women
#3
Lauren D Hill, Margaret S Lorenzetti, Sarah M Lyle, Ana I Fins, Aurélien Tartar, Jaime L Tartar
Introduction: We tested the extent to which the catechol-O-methyltransferase (COMT) Val158Met polymorphism is associated with affective state and evening cortisol levels. We limited our study to women as previous research suggests that the link between COMT genotype and psychological health is entangled by sex differences. Materials and Methods: The participants were assessed on measures of anxiety, mood disturbance, depressive symptomatology, and perceived stress...
February 2018: Brain and Behavior
https://www.readbyqxmd.com/read/29404961/rotational-stress-influences-sensitized-but-not-habituated-exploratory-behaviors-in-the-woodlouse-porcellio-scaber
#4
Patrick Anselme
Terrestrial isopods (or woodlice), like the members of the other arthropod taxa, have a sophisticated nervous system that makes them sensitive to specific environmental factors. They can search for survival-related opportunities (e.g., approaching food sources or avoiding sunny areas). Two experiments examined how rotational stress could influence the propensity of common woodlice, Porcellio scaber to exhibit survival-related behaviors such as traveling and rearing up in a hostile environment. Experiment 1 assessed the behaviors of stressed and nonstressed woodlice exposed to a familiar or a novel environment without rewards...
February 5, 2018: Learning & Behavior
https://www.readbyqxmd.com/read/29393717/stress-elevates-frontal-midline-theta-in-feedback-based-category-learning-of-exceptions
#5
Marcus Paul, Marie-Christin Fellner, Gerd T Waldhauser, John Paul Minda, Nikolai Axmacher, Boris Suchan, Oliver T Wolf
Adapting behavior based on category knowledge is a fundamental cognitive function, which can be achieved via different learning strategies relying on different systems in the brain. Whereas the learning of typical category members has been linked to implicit, prototype abstraction learning, which relies predominantly on prefrontal areas, the learning of exceptions is associated with explicit, exemplar-based learning, which has been linked to the hippocampus. Stress is known to foster implicit learning strategies at the expense of explicit learning...
February 2, 2018: Journal of Cognitive Neuroscience
https://www.readbyqxmd.com/read/29302276/haemoglobin-mediated-response-to-hyper-thermal-stress-in-the-keystone-species-daphnia-magna
#6
Maria Cuenca Cambronero, Bettina Zeis, Luisa Orsini
Anthropogenic global warming has become a major geological and environmental force driving drastic changes in natural ecosystems. Due to the high thermal conductivity of water and the effects of temperature on metabolic processes, freshwater ecosystems are among the most impacted by these changes. The ability to tolerate changes in temperature may determine species long-term survival and fitness. Therefore, it is critical to identify coping mechanisms to thermal and hyper-thermal stress in aquatic organisms...
January 2018: Evolutionary Applications
https://www.readbyqxmd.com/read/29250610/increased-neuronal-dna-rna-oxidation-in-the-frontal-cortex-of-mice-subjected-to-unpredictable-chronic-mild-stress
#7
Alfred M Maluach, Keith A Misquitta, Thomas D Prevot, Corey Fee, Etienne Sibille, Mounira Banasr, Ana C Andreazza
Background: Chronic stress is implicated in the development of various psychiatric illnesses including major depressive disorder. Previous reports suggest that patients with major depressive disorder have increased levels of oxidative stress, including higher levels of DNA/RNA oxidation found in postmortem studies, especially within brain regions responsible for the cognitive and emotional processes disrupted in the disorder. Here, we aimed to investigate whether unpredictable chronic mild stress in mice induces neuronal DNA/RNA oxidation in the prelimbic, infralimbic, and cingulate cortices of the frontal cortex and the basolateral amygdala and to explore potential associations with depressive-like behaviors...
January 2017: Chronic Stress
https://www.readbyqxmd.com/read/28858117/exacerbation-of-primary-intestinal-lymphangiectasia-during-late-pregnancy-and-recovery-after-delivery-a-case-report-and-literature-review
#8
REVIEW
Jianyang Lu, Hongbo Zhai
RATIONALE: Primary intestinal lymphangiectasia (PIL) is a rare disease characterized by dilated intestinal lacteals resulting in lymph leakage into the small bowel lumen. Main clinical features include intermittent diarrhea, hypoproteinemia. Scattered case reports suggested that PIL is compatible to pregnancy, but with increased complications. PATIENT CONCERNS: A 34-year-old woman with endoscopically diagnosed PIL presented to antenatal our clinic at 10 weeks into gestation...
September 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28616410/assessing-effects-of-bl67-points-stimulation-on-fetal-heart-rate-parameters-and-fetal-movements-during-nonstress-test
#9
Masume Pirhadi, Mahboube Valiani
CONTEXT: One of the main goals of antenatal testing is to identify fetuses at the risk of neurologic injury or death so that these adverse outcomes can be prevented. We want to assess the effects of BL67 points' stimulation on fetal heart rate parameters and fetal movements during nonstress test (NST). We did a quasi-experimental design in Shahid Beheshti Hospital in Isfahan in 2011. AIMS: This study aims to assessment of the effects of BL67 points' stimulation on fetal heart rate parameters and fetal movements...
2017: Journal of Education and Health Promotion
https://www.readbyqxmd.com/read/28607782/placental-chorangiosis-increased-risk-for-cesarean-section
#10
Shariska S Petersen, Raminder Khangura, Dmitry Davydov, Ziying Zhang, Roopina Sangha
We describe a patient with Class C diabetes who presented for nonstress testing at 36 weeks and 4 days of gestation with nonreassuring fetal heart tones (NRFHT) and oligohydramnios. Upon delivery, thrombosis of the umbilical cord was grossly noted. Pathological analysis of the placenta revealed chorangiosis, vascular congestion, and 40% occlusion of the umbilical vein. Chorangiosis is a vascular change of the placenta that involves the terminal chorionic villi. It has been proposed to result from longstanding, low-grade hypoxia in the placental tissue and has been associated with such conditions such as diabetes, intrauterine growth restriction (IUGR), and hypertensive conditions in pregnancy...
2017: Case Reports in Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28573761/sex-differences-in-the-associations-between-vagal-reactivity-and-oppositional-defiant-disorder-symptoms
#11
Pablo Vidal-Ribas, Andrew Pickles, Florin Tibu, Helen Sharp, Jonathan Hill
BACKGROUND: Vagal reactivity to stress in children has been associated with future psychiatric outcomes. However, results have been mixed possibly because these effects are in opposite direction in boys and girls. These sex differences are relevant in the context of development of psychopathology, whereby the rates of psychiatric disorders differ by sex. In this study, we aimed to examine the association between vagal reactivity, assessed as a reduction in respiratory sinus arrhythmia (RSA) in response to a challenge, and the development of future oppositional defiant disorder (ODD) symptoms in boys and girls...
September 2017: Journal of Child Psychology and Psychiatry, and Allied Disciplines
https://www.readbyqxmd.com/read/28485389/egfr-dependent-tor-independent-endocycles-support-drosophila-gut-epithelial-regeneration
#12
Jinyi Xiang, Jennifer Bandura, Peng Zhang, Yinhua Jin, Hanna Reuter, Bruce A Edgar
Following gut epithelial damage, epidermal growth factor receptor/mitogen-activated protein kinase (EGFR/MAPK) signalling triggers Drosophila intestinal stem cells to produce enteroblasts (EBs) and enterocytes (ECs) that regenerate the gut. As EBs differentiate into ECs, they become postmitotic, but undergo extensive growth and DNA endoreplication. Here we report that EGFR/RAS/MAPK signalling is required and sufficient to drive damage-induced EB/EC growth. Endoreplication occurs exclusively in EBs and newborn ECs that inherit EGFR and active MAPK from fast-dividing progenitors...
May 9, 2017: Nature Communications
https://www.readbyqxmd.com/read/28361416/characteristics-of-depressive-like-behavior-of-prenatally-stressed-male-rats-with-androgen-deficiency
#13
Yu O Fedotova, V K Akulova, S G Pivina
Characteristics of depressive-like behavior of male rats with androgen deficiency born by mothers subjected to prenatal stress during pregnancy were assessed by using Porsolt tests and open-field tests. The level of depression-like behavior in prenatally stressed males increased more intensively than in non-stressed gonadectomized males. Chronic administration of testosterone propionate (0.5 mg/kg, intramuscularly, for 14 days) increased depressive behavior in prenatally stressed gonadectomized males in contrast to its antidepressant effect in nonstressed gonadectomized rats...
March 2017: Bulletin of Experimental Biology and Medicine
https://www.readbyqxmd.com/read/28058270/validity-assessment-of-5-day-repeated-forced-swim-stress-to-model-human-depression-in-young-adult-c57bl-6j-and-balb-cj-mice
#14
COMPARATIVE STUDY
Joram D Mul, Jia Zheng, Laurie J Goodyear
The development of animal models with construct, face, and predictive validity to accurately model human depression has been a major challenge. One proposed rodent model is the 5 d repeated forced swim stress (5d-RFSS) paradigm, which progressively increases floating during individual swim sessions. The onset and persistence of this floating behavior has been anthropomorphically characterized as a measure of depression. This interpretation has been under debate because a progressive increase in floating over time may reflect an adaptive learned behavioral response promoting survival, and not depression (Molendijk and de Kloet, 2015)...
November 2016: ENeuro
https://www.readbyqxmd.com/read/27596360/recombinant-human-relaxin-versus-placebo-for-cervical-ripening-a-double-blind-randomised-trial-in-pregnant-women-scheduled-for-induction-of-labour
#15
RANDOMIZED CONTROLLED TRIAL
Gerson Weiss, Sam Teichman, Dennis Stewart, David Nader, Susan Wood, Peter Breining, Elaine Unemori
BACKGROUND: Nonclinical studies indicate that the hormone relaxin is a good candidate for a safe cervical ripening agent that does not cause uterine contractions. METHODS: This Phase II study (conducted November 2, 2005-October 20, 2006) was a randomised, double blind, placebo controlled trial testing 24-h intravenous infusion of serelaxin (recombinant human relaxin) or placebo for cervical ripening in 72 healthy, primiparous women. Eligible subjects had a singleton pregnancy ≥40 weeks, were planned for elective induction, had vertex presentation of the fetus, intact membranes and a Bishop score at screening ≤4...
September 5, 2016: BMC Pregnancy and Childbirth
https://www.readbyqxmd.com/read/27539200/a-mixed-methods-study-of-clinical-information-availability-in-obstetric-triage-and-prenatal-offices
#16
Chad D Meyerhoefer, Susan A Sherer, Mary E Deily, Shin-Yi Chou, Lizhong Peng, Tianyan Hu, Marion Nihen, Michael Sheinberg, Donald Levick
Objective: To determine the effect of availability of clinical information from an integrated electronic health record system on pregnancy outcomes at the point of care. Materials and methods: We used provider interviews and surveys to evaluate the availability of pregnancy-related clinical information in ambulatory practices and the hospital, and applied multiple regression to determine whether greater clinical information availability is associated with improvements in pregnancy outcomes and changes in care processes...
April 1, 2017: Journal of the American Medical Informatics Association: JAMIA
https://www.readbyqxmd.com/read/27379299/protective-effects-of-tualang-honey-against-oxidative-stress-and-anxiety-like-behaviour-in-stressed-ovariectomized-rats
#17
Badriya Al-Rahbi, Rahimah Zakaria, Zahiruddin Othman, Asma' Hassan, Asma Hayati Ahmad
The present study aims to evaluate the antioxidant and anxiolytic-like effect of Tualang honey in stressed ovariectomized (OVX) rats. The animals were divided into; (i) nonstressed sham-operated control rats, (ii) sham-operated control rats exposed to stress, (iii) nonstressed OVX rats, (iv) OVX rats exposed to stress, (v) OVX rats exposed to stress and treated with 17 β-oestradiol (E2) (20 μg daily, sc), and (vi) OVX rats exposed to stress and treated with Tualang honey (0.2 g/kg body weight, orally)...
2014: International Scholarly Research Notices
https://www.readbyqxmd.com/read/27340578/preeclampsia-a-possible-complication-of-primary-hyperparathyroidism
#18
Bader Abdullah Alharbi, Mohammed Ali Alqahtani, Mohammed Hmoud, Essam Awadh Alhejaili, Reema Badros
Background. Primary hyperparathyroidism is rare in pregnancy. An association between primary hyperparathyroidism and preeclampsia has been reported in few cases worldwide. Case. A 28-year-old woman (gravida 2, para 0, and abortus 1) in her 27th week of gestation was hospitalized due to a high reading of blood pressure (194/115 mmHg) that was not accompanied by any symptoms or signs of preeclampsia. Incidentally, she was found to have a high adjusted calcium and serum parathyroid hormone (PTH) level during admission...
2016: Case Reports in Obstetrics and Gynecology
https://www.readbyqxmd.com/read/27295202/cd4-t-cells-confer-anxiolytic-and-antidepressant-like-effects-but-enhance-fear-memory-processes-in-rag2-mice
#19
Sarah M Clark, Jennifer A Soroka, Chang Song, Xin Li, Leonardo H Tonelli
Accumulating evidence supports a role of T cells in behavioral stress responsiveness. Our laboratory previously reported that lymphocyte deficient Rag2(-/-) mice on a BALB/c background display resilience to maladaptive stress responses when compared with immune competent mice in the predator odor exposure (POE) paradigm, while exhibiting similar behavior in a cued fear-conditioning (FC) paradigm. In the present study, Rag2(-/-) mice on a C57BL/6 background were assessed in the same behavioral paradigms, as well as additional tests of anxiety and depressive-like behavior...
May 2016: Stress: the International Journal on the Biology of Stress
https://www.readbyqxmd.com/read/27276861/doppler-changes-as-the-earliest-parameter-in-fetal-surveillance-to-detect-fetal-compromise-in-intrauterine-growth-restricted-fetuses
#20
Saloni Bansal, Deepika Deka, Vatsla Dhadwal, Rajiv Mahendru
INTRODUCTION: It is estimated that 3-10% of infants are growth restricted. Growth disturbances may have long-term issues. Doppler allows insight into the fetal response to intrauterine stress. OBJECTIVE: The aim of this study was to detect fetal compromise in intrauterine growth-restricted (IUGR) fetuses by means of biophysical profile (BPP) vis-à-vis Doppler velocimetry studies of the fetal umbilical artery, and to find out which of the two is a better and earlier predictor of fetal compromise...
January 2016: Srpski Arhiv za Celokupno Lekarstvo
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