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https://www.readbyqxmd.com/read/29774074/placenta-specific-drug-delivery-by-trophoblast-targeted-nanoparticles-in-mice
#1
Baozhen Zhang, Lunbo Tan, Yan Yu, Baobei Wang, Zhilong Chen, Jinyu Han, Mengxia Li, Jie Chen, Tianxia Xiao, Balamurali K Ambati, Lintao Cai, Qing Yang, Nihar R Nayak, Jian Zhang, Xiujun Fan
Rationale: The availability of therapeutics to treat pregnancy complications is severely lacking, mainly due to the risk of harm to the fetus. In placental malaria, Plasmodium falciparum- infected erythrocytes (IEs) accumulate in the placenta by adhering to chondroitin sulfate A (CSA) on the surfaces of trophoblasts. Based on this principle, we have developed a method for targeted delivery of payloads to the placenta using a synthetic placental CSA-binding peptide (plCSA-BP) derived from VAR2CSA, a CSA-binding protein expressed on IEs...
2018: Theranostics
https://www.readbyqxmd.com/read/29772054/oxycodone-pharmacokinetics-and-fetal-exposure-after-intravenous-or-epidural-administration-to-the-ewe
#2
Mari Kinnunen, Hannu Kokki, Heidi Hautajärvi, Heikki Huhta, Veli-Pekka Ranta, Juha Räsänen, Hanna-Marja Voipio, Merja Kokki
INTRODUCTION: There are limited data of oxycodone pharmacokinetics during pregnancy and on fetal exposure after maternal administration. The present study describes the pharmacokinetics of intravenous oxycodone in pregnant sheep and fetal exposure after intravenous and epidural administration. MATERIAL AND METHODS: 10 pregnant sheep received 0.1 mg·kg-1 oxycodone intravenously -bolus, and blood samples were collected up to 24 hours. Seven days later, the ewes were randomized to receive 0...
May 17, 2018: Acta Obstetricia et Gynecologica Scandinavica
https://www.readbyqxmd.com/read/29768639/mirror-syndrome-assocciated-with-patau-syndrome-a-case-report
#3
Ana Sofia Pais, Ana Luísa Fialho Amaral de Areia, Sofia Margarida Perienes Franco, Etelvina Morais Ferreira Fonseca, José Paulo Achando Silva Moura
Mirror syndrome is an unusual pathological condition in which maternal edema in pregnancy is seen in association with severe fetal and/or placental hydrops. The disease can be life-threatening for both the mother and the fetus. The pathogenesis is poorly understood, and may be confused with preeclampsia, even though distinguishing features can be identified. We report a rare case of mirror syndrome with maternal pulmonary edema associated with fetal hydrops due to Patau syndrome.
May 16, 2018: Revista Brasileira de Ginecologia e Obstetrícia
https://www.readbyqxmd.com/read/29766818/cell-free-fetal-dna-a-novel-biomarker-for-early-prediction-of-pre-eclampsia-and-other-obstetric-complications
#4
Naina Kumar, Amit Kant Singh
Hypertensive disorder of pregnancy, especially Pre-eclampsia is one of the major causes of increased maternal and perinatal morbidity and mortality all over the world. Early prediction of pre-eclampsia is the need of modern obstetrics, as this can timely prevent the progress of disease as well as related fetal and maternal morbidity and mortality. In addition to the screening of fetal aneuploidies, Rhesus-D status, fetal sex, single gene disorders, the cell-free fetal Deoxyribonucleic acid (DNA) quantification has emerged out as a promising biomarker for prediction of pre-eclampsia...
May 16, 2018: Current Hypertension Reviews
https://www.readbyqxmd.com/read/29765784/use-of-the-tei-index-in-the-conservative-management-of-trap-sequence-pregnancies-diagnosed-during-the-periviable-period-a-case-series
#5
Kristina Martimucci, Theresa Kuhn, Robyn Bilinski, Jesus Alvarez-Perez
Twin Reverse Arterial Perfusion (TRAP) Sequence is a rare complication of monochorionic pregnancies. Without intervention, the viable pump twin in a case of TRAP Sequence may develop high output cardiac failure leading to an intrauterine fetal demise. We present 3 cases of TRAP Sequence pregnancy diagnosed during the second or third trimesters of pregnancy. There are minimal sonographic tools for the guidance of a fetal therapeutic interventional procedure during the second trimester or timing of delivery during the third trimester to reduce morbidity and mortality of a viable fetus...
2018: Case Reports in Obstetrics and Gynecology
https://www.readbyqxmd.com/read/29764249/the-effects-of-acrylamide-and-vitamin-e-on-kidneys-in-pregnancy-an-experimental-study
#6
Mehmet Erman Erdemli, Zeynep Aksungur, Mehmet Gul, Birgul Yigitcan, Harika Gozukara Bag, Eyup Altinoz, Yusuf Turkoz
OBJECTIVES: The objective of this study is to investigate possible damages to kidney tissues of pregnant rats and their fetuses exposed to acrylamide during pregnancy and possible protective effects of vitamin E against these damages. MATERIAL AND METHODS: Rats were randomly assigned to five groups of control, corn oil, vitamin E, acrylamide, vitamin E + acrylamide, six pregnant rats in each. Mother and fetal kidney tissues were examined for malondialdehyde (MDA), reductase glutathione (GSH), superoxide dismutase (SOD), catalase (CAT), total antioxidant status (TAS), total oxidant status (TOS), urea, creatine, trace elements such as Zn and Cu in the serum and histopathological analyses were conducted...
May 15, 2018: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/29763964/incidental-fetal-ultrasound-findings-interpretation-and-management
#7
Rebekah Kaplan, Sharon Adams
Ultrasonography is a common component of prenatal care worldwide and is often used in early pregnancy to determine gestational age, number of fetuses, fetal cardiac activity, and placental location. Patients and their families may also consider ultrasonography a social event, as it provides confirmation and reassurance of a normal pregnancy. Ultrasound screening is typically scheduled in the second trimester to visualize fetal anatomy and confirm gestational age. Most ultrasound examinations are reassuring, but some incidentally identify structural anomalies and soft markers for aneuploidy, making it necessary for health care providers to correctly interpret these findings...
May 15, 2018: Journal of Midwifery & Women's Health
https://www.readbyqxmd.com/read/29763608/early-prognostic-factors-of-outcomes-in-monochorionic-twin-pregnancy-systematic-review-and-meta-analysis
#8
REVIEW
Fiona L Mackie, Matthew J Hall, R Katie Morris, Mark D Kilby
OBJECTIVE: Assess ability of first trimester pregnancy related factors (ultrasound measurements, maternal characteristics, biomarkers) to predict complications in monochorionic twin pregnancies DATA SOURCES: MEDLINE, EMBASE, ISI Web of Science, CINAHL, the Cochrane Central Registration of Controlled Trials and Research Registers, and Google Scholar, from inception to 12 May 2017. Grey literature and bibliographies of articles were checked. STUDY ELIGIBILITY CRITERIA: Studies that reported ultrasound measurements, maternal characteristics, or potential biomarkers, measured in the first trimester in monochorionic diamniotic twin pregnancies, where the potential prognostic ability between the variable and twin-twin transfusion syndrome, growth restriction, or intrauterine fetal death could be assessed...
May 12, 2018: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/29762460/a-new-life-motherhood-after-heart-transplantation-a-single-center-experience-and-review-of-literature
#9
Francesca Macera, Lucia Occhi, Gabriella Masciocco, Marisa Varrenti, Maria Frigerio
BACKGROUND: Pregnancy after heart transplantation (HTx) may expose the recipient to hemodynamic and immunologic risks, and the newborn to toxic effects of immunosuppressive therapy. Adequate preconception counseling is crucial to identify optimal timing and to modify immunosuppressive therapy in order to minimize risks for both the mother and the fetus. METHOD: We describe our experience with 12 pregnancies occurred in 11 women who had undergone HTx at our center...
May 14, 2018: Transplantation
https://www.readbyqxmd.com/read/29760938/novel-col4a1-mutation-in-a-fetus-with-early-prenatal-onset-of-schizencephaly
#10
Yota Sato, Jun Shibasaki, Noriko Aida, Kazuya Hiiragi, Yuichi Kimura, Moe Akahira-Azuma, Yumi Enomoto, Yoshinori Tsurusaki, Kenji Kurosawa
Porencephaly and schizencephaly are congenital brain disorders that can be caused by COL4A1 mutations, though the underlying mechanism and developmental processes are poorly understood. Here, we report a patient with schizencephaly, detected by fetal ultrasonography and fetal magnetic resonance imaging, with a de novo novel mutation in COL4A1 (c.2645_2646delinsAA, p.Gly882Glu). Our results suggest that the onset of damage that potentially results in schizencephaly occurs mid-pregnancy.
2018: Human Genome Variation
https://www.readbyqxmd.com/read/29759274/pharmacologic-treatment-of-sleep-disorders-in-pregnancy
#11
REVIEW
Laura P McLafferty, Meredith Spada, Priya Gopalan
Pregnancy often predisposes women to new-onset sleep disturbances, as well as exacerbations of preexisting sleep disorders. The goals of treating perinatal sleep disorders include the promotion of restorative sleep and the benefits it brings to both mother and fetus. The prescribing of any sleep aid in pregnancy must include consideration of the risks and benefits for both the patient and her fetus. Although data on the perinatal use of sleep aids is limited, there may be effects on fetal development, timing and duration of delivery, and postnatal outcomes...
June 2018: Sleep Medicine Clinics
https://www.readbyqxmd.com/read/29759106/stage-specific-feed-intake-restriction-differentially-regulates-placental-traits-and-proteome-of-goats
#12
Qiongxian Yan, Juanzhi Xu, Xiaosong Wu, Dingding Su, Zhiliang Tan
A total of twenty-four healthy twin-bearing Liuyang black goats were allocated to two trials. In Trial 1, twelve goats received either the control diet (CG, n 6, 100 % feed) or restricted diet (RG, n 6, 60 % feed of CG) from gestation days 26 to 65 after synchronisation. In Trial 2, the remaining goats were randomly and equally divided into two treatments: CG and RG from days 95 to 125 of gestation. Placental traits, fetal weight, serum parameters, nitric oxide (NO), angiogenesis gene expression and cotyledon proteome were measured at the end of each trial...
May 2018: British Journal of Nutrition
https://www.readbyqxmd.com/read/29758177/the-efficacy-of-antenatal-steroid-therapy-is-dependent-on-the-duration-of-low-concentration-fetal-exposure-evidence-from-a-sheep-model-of-pregnancy
#13
Matthew W Kemp, Masatoshi Saito, Haruo Usuda, Shimpei Watanabe, Shinichi Sato, Takushi Hanita, Yusaku Kumagai, Timothy J Molloy, Michael Clarke, Peter J Eddershaw, Gabrielle C Musk, Augusto Schmidt, Demelza Ireland, Lucy Furfaro, Matthew S Payne, John P Newnham, Alan H Jobe
OBJECTIVE: Antenatal corticosteroids (ANS) are among the most important and widely used interventions to improve outcomes for preterm infants. ANS dosing regimens remain un-optimized and without maternal weight-adjusted dosing. We, and others, have hypothesised that once a low concentration of materno-fetal steroid exposure is achieved and maintained, the duration of the steroid exposure determines treatment efficacy. Using a sheep model of pregnancy, we tested the relationship between steroid dose, and duration of exposure, and treatment efficacy...
May 9, 2018: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/29754451/maternal-exercise-season-and-sex-modify-the-human-fetal-circadian-rhythm
#14
Julie Sletten, Germaine Cornelissen, Jørg Assmus, Torvid Kiserud, Susanne Albrechtsen, Jörg Kessler
AIM: The knowledge on circadian rhythmicity is rapidly expanding. We aimed to define the longitudinal development of the circadian heart rate rhythm in the human fetus in an unrestricted, out-of-hospital setting, and to examine the effects of maternal physical activity, season and fetal sex. METHODS: We recruited 48 women with low-risk singleton pregnancies. Using a portable monitor for continuous fetal electrocardiography, fetal heart rate recordings were obtained around gestational weeks 24, 28, 32 and 36...
May 13, 2018: Acta Physiologica
https://www.readbyqxmd.com/read/29754004/natural-disaster-related-prenatal-maternal-stress-is-associated-with-alterations-in-placental-glucocorticoid-system-the-qf2011-queensland-flood-study
#15
Joey St-Pierre, David P Laplante, Guillaume Elgbeili, Paul A Dawson, Sue Kildea, Suzanne King, Cathy Vaillancourt
We investigated the effects of a natural disaster (a sudden flood) as a source of prenatal maternal stress (PNMS) on the placental glucocorticoid system and glucose transporters. Whether the gestational age at the time of the flood moderated these effects was also evaluated. Placental samples were collected from participants in the 2011 Queensland Flood Study (QF2011) who were pregnant in the first or second trimester at the onset of the flood. Detailed questionnaire results for objective hardship and composite subjective distress were obtained to assess stress levels...
April 26, 2018: Psychoneuroendocrinology
https://www.readbyqxmd.com/read/29753919/epidemiology-of-orofacial-clefts-in-a-danish-county-over-35-years-before-and-after-implementation-of-a-prenatal-screening-programme-for-congenital-anomalies
#16
Eva Berenth Paaske, Ester Garne
In 2004 the Danish National Board of Health changed its screening recommendations. Since 2005 a first trimester screening for Down syndrome and a prenatal ultrasound screening for congenital anomalies in the second trimester of pregnancy has been offered to all pregnant women. The aim of this study was to describe the prevalence of cleft lip with or without cleft palate and cleft palate in a Danish area and to describe associated anomalies and the development in prenatal diagnosis over time. The study was based on data from the EUROCAT Registry for Funen County...
May 10, 2018: European Journal of Medical Genetics
https://www.readbyqxmd.com/read/29752712/maternal-diabetes-alters-the-development-of-ductus-venosus-shunting-in-the-fetus
#17
Agnethe Lund, Cathrine Ebbing, Svein Rasmussen, Torvid W Kiserud, Jörg Kessler
INTRODUCTION: Despite adequate glycemic control, the risks of fetal macrosomia and perinatal complications are increased in diabetic pregnancies. Adjustments of the umbilical venous (UV) distribution, including increased ductus venosus (DV) shunting, can be important fetal compensatory mechanisms, but the impact of pregestational diabetes on UV and DV flow is not known. MATERIAL AND METHODS: In this prospective study, 49 women with pregestational diabetes mellitus underwent monthly ultrasound examinations from gestational week 20 to 36...
May 11, 2018: Acta Obstetricia et Gynecologica Scandinavica
https://www.readbyqxmd.com/read/29751786/meconium-peritonitis-due-to-fetal-appendiceal-perforation-two-case-reports-and-a-brief-review-of-the-literature
#18
Yi Wang, Yeming Wu, Wenbin Guan, Wenbo Yan, Yuhua Li, Jin Fang, Jun Wang
BACKGROUND: Meconium peritonitis is an infrequent congenital disease usually caused by perforation of the fetal digestive tract. Meconium peritonitis resulting from intrauterine appendiceal perforation has been rarely reported and is often overlooked during pregnancy. We herein report two cases of fetal appendiceal perforation. CASE PRESENTATION: Two neonates were found to have intestinal distension and gradually increasing ascites antenatally. After birth, diagnostic abdominal punctures revealed meconium peritonitis...
May 11, 2018: BMC Pediatrics
https://www.readbyqxmd.com/read/29750565/pregnancy-late-in-rodent-life-has-detrimental-effects-on-the-heart
#19
Eunhee Chung, Kaylan M Haizlip, Leslie A Leinwand
During pregnancy, the heart undergoes significant and numerous changes, including hypertrophy that are usually described as physiological and reversible. Two aspects of the cardiac response to pregnancy are relatively understudied: advanced maternal age and multiple pregnancies (multiparity). Repeated breeder mice (RB) that have undergone 5 to 7 consecutive pregnancies were sacrificed 21 days after the weaning of their last pups and were compared to age-matched primiparous, one-time pregnant mice (O1P). The ages of the old mouse groups were similar (12 {plus minus} 1 month)...
May 11, 2018: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/29749239/a-novel-fetal-sequence-patogenesis-resulting-in-oral-meningoencephalocele
#20
M Gabor, P Papcun, Jr M Krizko, Z Cierna, V Ferianec
OBJECTIVES: To analyze a rare triad of intracranial fetal pathologies and clinical study of the novel defined sequence pathogenesis based on prenatal and postmortem findings. METHODS: Complex multidisciplinary clinical analysis and review of up-to-date literature. RESULTS: In an 18-gestational-week fetus the screening ultrasound scan resembled the semilobar type of holoprosencephaly and oral tumor. After the indicated termination of pregnancy, the histopathology results confirmed another pathologies - oral meningoencephalocele, teratoma of the sellar area and large arachnoidal cyst of the anterior cerebral fossa...
2018: Bratislavské Lekárske Listy
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