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https://www.readbyqxmd.com/read/28324259/protective-effect-of-nigella-sativa-seeds-against-spermatocyte-chromosomal-aberrations-and-genotoxicity-induced-by-carbon-tetrachloride-in-mice
#1
Ashraf M Abdel-Moneim, Amina E Essawy, Sherifa S Hamed, Ashgan A Abou-Gabal, Aglal A Alzergy
Nigella sativa is a well-known dietary antioxidant and a valuable inhibitor of clastogenesis and carcinogenesis. The purpose of the present work was to investigate the effects of N. sativa seeds against chromosomal aberrations in primary spermatocytes and early embryonic lethality induced by CCl4 hepatotoxin in Swiss albino mice. One hundred male Swiss albino mice were randomly divided into five groups. Groups I, II, and III received only normal saline, olive oil, and aqueous suspension of N. sativa seeds (50 mg/kg b...
March 21, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28318499/loss-of-function-mutations-in-lgi4-a-secreted-ligand-involved-in-schwann-cell-myelination-are-responsible-for-arthrogryposis-multiplex-congenita
#2
Shifeng Xue, Jérôme Maluenda, Florent Marguet, Mohammad Shboul, Loïc Quevarec, Carine Bonnard, Alvin Yu Jin Ng, Sumanty Tohari, Thong Teck Tan, Mung Kei Kong, Kristin G Monaghan, Megan T Cho, Carly E Siskind, Jacinda B Sampson, Carolina Tesi Rocha, Fawaz Alkazaleh, Marie Gonzales, Luc Rigonnot, Sandra Whalen, Marta Gut, Ivo Gut, Martine Bucourt, Byrappa Venkatesh, Annie Laquerrière, Bruno Reversade, Judith Melki
Arthrogryposis multiplex congenita (AMC) is a developmental condition characterized by multiple joint contractures resulting from reduced or absent fetal movements. Through genetic mapping of disease loci and whole-exome sequencing in four unrelated multiplex families presenting with severe AMC, we identified biallelic loss-of-function mutations in LGI4 (leucine-rich glioma-inactivated 4). LGI4 is a ligand secreted by Schwann cells that regulates peripheral nerve myelination via its cognate receptor ADAM22 expressed by neurons...
March 8, 2017: American Journal of Human Genetics
https://www.readbyqxmd.com/read/28315852/characteristics-and-management-of-mirror-syndrome-a-systematic-review-1956-2016
#3
Sabah Allarakia, Hassan A Khayat, Moyassar M Karami, Abdulaziz M Aldakhil, Ahmed M Kashi, Abdulrahman H Algain, Mohammad A Khan, Loai S Alghifees, Raed E Alsulami
OBJECTIVES: To describe the clinical features of mirror syndrome and to correlate the effects of different treatments with the fetal outcomes. DATA SOURCES: Online search up to May 2016 was conducted in the PubMed, Embase (Ovid platform) and clinicalTrials.gov without restrictions of language, date or journal. Only papers providing both fetal and maternal presentations and outcomes were included. RESULTS: The study included 74 papers (n=111), with an additional two patients diagnosed at our center (n=113)...
March 20, 2017: Journal of Perinatal Medicine
https://www.readbyqxmd.com/read/28315665/physician-scientists-in-obstetrics-and-gynecology-predictors-of-success-in-obtaining-independent-research-funding
#4
Ijeoma Okeigwe, Cynthia Wang, Joseph A Politch, Linda J Heffner, Wendy Kuohung
BACKGROUND: Obstetrics and gynecology departments receive the smallest amount of National Institutes of Health (NIH) research funding and have significantly lower application success rates compared to pediatric, internal medicine, and surgery departments. The development of mentored early career development training grants (K awards) has been one strategy implemented by the NIH to help aspiring physician-scientists establish independent research careers. OBJECTIVE: The purpose of this study is to describe the cohort of ob/gyn physician-scientists who were K08, K12, and K23 recipients from 1988-2015 and to identify predictors of success in obtaining independent federal funding, as defined by acquisition of an R01, R21, R34, U01, U54, P01, or P50...
March 15, 2017: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28306738/comparative-evaluation-of-the-minimally-invasive-karyotyping-mink-algorithm-for-non-invasive-prenatal-testing
#5
Tianjiao Chu, Patricia A Shaw, Suveyda Yeniterzi, Mary Dunkel, Aleksander Rajkovic, W Allen Hogge, Kimberly D Bunce, David G Peters
Minimally Invasive Karyotyping (MINK) was communicated in 2009 as a novel method for the non-invasive detection of fetal copy number anomalies in maternal plasma DNA. The original manuscript illustrated the potential of MINK using a model system in which fragmented genomic DNA obtained from a trisomy 21 male individual was mixed with that of his karyotypically normal mother at dilutions representing fetal fractions found in maternal plasma. Although it has been previously shown that MINK is able to non-invasively detect fetal microdeletions, its utility for aneuploidy detection in maternal plasma has not previously been demonstrated...
2017: PloS One
https://www.readbyqxmd.com/read/28306540/4d-assessment-of-fetal-brain-function-in-diabetic-patients
#6
Panagiotis Antsaklis, Selma Porovic, George Daskalakis, Asim Kurjak
OBJECTIVE: To assess whether there is a difference in the behavior of fetuses of pregnant women with diabetes under treatment with insulin, compared to fetuses of pregnant women without diabetes. MATERIALS AND METHODS: Kurjak's antenatal neurodevelopmental test (KANET) - a method that, by application of four-dimensional (4D) ultrasound, assesses fetal behavior in a similar way that neonatologists perform a neurological assessment in newborns - was applied from 28 to 38 weeks of gestation to 40 pregnancies with pre-existing diabetes mellitus or gestational diabetes mellitus (GDM) requiring insulin (diabetic group) and to 40 non-diabetic cases, with otherwise low-risk pregnancies (non-diabetic group)...
March 17, 2017: Journal of Perinatal Medicine
https://www.readbyqxmd.com/read/28304179/discrepancy-in-fetal-head-biometry-between-ultrasound-and-mri-in-suspected-microcephalic-fetuses
#7
Gal Yaniv, Eldad Katorza, Vered Tsehmaister Abitbol, Arik Eisenkraft, Ronen Bercovitz, Salim Bader, Chen Hoffmann
Background Microcephaly is one of the most common fetal structural abnormalities, and prenatal microcephaly is considered a group I malformation of cortical development diagnosed according to ultrasound (US) skull measurements. Purpose To evaluate the agreement between fetal head US and magnetic resonance imaging (MRI) biometric measurements of suspected microcephalic fetuses. Material and Methods This institutional review board-approved retrospective study with waived informed consent included 180 pregnant women and was conducted at our medical center from March 2011 to April 2013...
January 1, 2017: Acta Radiologica
https://www.readbyqxmd.com/read/28303276/a-parameterized-ultrasound-based-finite-element-analysis-of-the-mechanical-environment-of-pregnancy
#8
Andrea R Westervelt, Michael Fernandez, Michael House, Joy Vink, Chia-Ling Nhan-Chang, Ronald Wapner, Kristin M Myers
Preterm birth is the leading cause of childhood mortality, and can lead to health risks in survivors. The mechanical function of the uterus, fetal membranes, and cervix have dynamic roles to protect the fetus during gestation. To understand their mechanical function and relation to preterm birth, we built a 3-dimensional parameterized finite element model of pregnancy. This model is generated by an automated procedure that is informed by maternal ultrasound measurements. A baseline model at 25 weeks of gestation was characterized, and to visualize the impact of cervical structural parameters on tissue stretch we evaluated the model sensitivity to: (1) anterior uterocervical angle, (2) cervical length, (3) posterior cervical offset, and (4) cervical stiffness...
March 17, 2017: Journal of Biomechanical Engineering
https://www.readbyqxmd.com/read/28301980/an-investigation-of-intra-individual-variability-in-children-with-fetal-alcohol-spectrum-disorder-fasd
#9
Sheliza Ali, Kimberly A Kerns, Bryce P Mulligan, Heather Carmichael Olson, Susan J Astley
Intra-individual variability (IIV) is defined as systematic within-person variation in performance either across test sessions (e.g., test/retest performance on the same task) or in one session (e.g., variations in performance on multiple trials of a single task). Higher levels of IIV have been noted as a characteristic of neurodevelopmental disorders such as attention deficit/hyperactivity disorder​ (ADHD), but IIV is yet to be investigated in fetal alcohol spectrum disorder (FASD). FASD is a term used to describe a range of conditions resulting from prenatal exposure to alcohol...
March 16, 2017: Child Neuropsychology: a Journal on Normal and Abnormal Development in Childhood and Adolescence
https://www.readbyqxmd.com/read/28301892/evaluating-the-performance-of-ultrasound-screening-for-congenital-heart-disease-a-descriptive-cohort-study
#10
Rosemary J Froehlich, Lindsay Maggio, Phinnara Has, Erika F Werner, Dwight J Rouse
Objective The objective of this study was to evaluate the rate of abnormal fetal echocardiogram after normal detailed anatomy ultrasound when both are performed by maternal-fetal medicine specialists. Study Design Retrospective review of women who underwent detailed anatomy ultrasound and fetal echocardiography between 16 and 26 weeks' gestation at a single center. Women included had at least one indication for fetal echocardiography as recommended by the American Institute of Ultrasound in Medicine and normal cardiac anatomy on initial detailed anatomy ultrasound...
March 16, 2017: American Journal of Perinatology
https://www.readbyqxmd.com/read/28301696/toward-an-ethically-sensitive-implementation-of-noninvasive-prenatal-screening-in-the-global-context
#11
Jessica Mozersky, Vardit Ravitsky, Rayna Rapp, Marsha Michie, Subhashini Chandrasekharan, Megan Allyse
Noninvasive prenatal screening using cell-free DNA, which analyzes placental DNA circulating in maternal blood to provide information about fetal chromosomal disorders early in pregnancy and without risk to the fetus, has been hailed as a potential "paradigm shift" in prenatal genetic screening. Commercial provision of cell-free DNA screening has contributed to a rapid expansion of the tests included in the screening panels. The tests can include screening for sex chromosome anomalies, rare subchromosomal microdeletions and aneuploidies, and most recently, the entire fetal genome...
March 2017: Hastings Center Report
https://www.readbyqxmd.com/read/28301585/a-maternal-high-fat-high-sucrose-diet-has-sex-specific-effects-on-fetal-glucocorticoids-with-little-consequence-for-offspring-metabolism-and-voluntary-locomotor-activity-in-mice
#12
Eunice H Chin, Kim L Schmidt, Kaitlyn M Martel, Chi Kin Wong, Jordan E Hamden, William T Gibson, Kiran K Soma, Julian K Christians
Maternal overnutrition and obesity during pregnancy can have long-term effects on offspring physiology and behaviour. These developmental programming effects may be mediated by fetal exposure to glucocorticoids, which is regulated in part by placental 11β-hydroxysteroid dehydrogenase (11β-HSD) type 1 and 2. We tested whether a maternal high-fat, high-sucrose diet would alter expression of placental 11β-HSD1 and 2, thereby increasing fetal exposure to maternal glucocorticoids, with downstream effects on offspring physiology and behaviour...
2017: PloS One
https://www.readbyqxmd.com/read/28300789/anti-cancer-activity-of-resveratrol-and-derivatives-produced-by-grapevine-cell-suspensions-in-a-14-l-stirred-bioreactor
#13
Laetitia Nivelle, Jane Hubert, Eric Courot, Philippe Jeandet, Aziz Aziz, Jean-Marc Nuzillard, Jean-Hugues Renault, Christophe Clément, Laurent Martiny, Dominique Delmas, Michel Tarpin
In the present study, resveratrol and various oligomeric derivatives were obtained from a 14 L bioreactor culture of elicited grapevine cell suspensions (Vitis labrusca L.). The crude ethyl acetate stilbene extract obtained from the culture medium was fractionated by centrifugal partition chromatography (CPC) using a gradient elution method and the major stilbenes contained in the fractions were subsequently identified by using a (13)C-NMR-based dereplication procedure and further 2D NMR analyses including HSQC, HMBC, and COSY...
March 16, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28299992/developmental-programming
#14
Muraly Puttabyatappa, Ashleigh Irwin, Jacob D Martin, Makeda Mesquitta, Almudena Veiga-Lopez, Vasantha Padmanabhan
Prenatal testosterone (T)-treated sheep, similar to women with polycystic ovary syndrome (PCOS), manifests reproductive defects that include multifollicular ovarian phenotype. Women with PCOS manifest increased ovarian matrix metalloproteinases (MMPs) activity. We tested the hypothesis that gestational T excess in sheep would alter ovarian expression of MMPs, tissue inhibitors of MMP (TIMP) and their target proteins laminin B (LAMB), collagen, tumor necrosis factor alpha (TNF), and connexin 43 (GJA1) consistent with increased MMP activity and that these changes are developmentally regulated...
January 1, 2017: Reproductive Sciences
https://www.readbyqxmd.com/read/28299299/effect-of-early-physical-activity-programs-on-motor-performance-and-neuromuscular-development-in-infants-born-preterm-a-randomized-clinical-trial
#15
Leila Valizadeh, Mahnaz Sanaeefar, Mohammad Bager Hosseini, Mohammad Asgari Jafarabadi, Aryan Shamili
Introduction: Although the survival rate of infants born preterm has increased, the prevalence of developmental problems and motor disorders among this population of infants remains the same. This study investigated the effect of physical activity programs in and out of water on motor performance and neuromuscular development of infants born preterm and had induced immobility by mechanical ventilation. Methods: This study was carried out in Al-Zahra hospital, Tabriz. 76 premature infants were randomly assigned into four groups...
March 2017: Journal of Caring Sciences
https://www.readbyqxmd.com/read/28298706/an-assessment-of-fetal-cerebral-and-hepatic-perfusion-in-normal-pregnancy-and-pre-eclampsia-using-three-dimensional-ultrasound
#16
Susan Addley, Amanda Ali, Stephen Ong
BACKGROUND: Pre-eclampsia and placental causes of intrauterine growth restriction (IUGR) are part of the same spectrum of disorders. In IUGR, there is preferential shunting of blood to the fetal brain at the expense of other organs. We wanted to demonstrate that this also occurs in pre-eclampsia using three dimensional (3D) ultrasound. The 3D indices of perfusion are: flow index (FI), vascular index (VI) and vascularisation flow index (VFI) which reflect tissue vascularity and flow intensity...
January 2017: Ulster Medical Journal
https://www.readbyqxmd.com/read/28298172/potential-prognostic-biomarkers-of-cardiovascular-disease-in-fetal-macrosomia-the-impact-of-gestational-diabetes
#17
Despina D Briana, Κleopatra Germanou, Μaria Boutsikou, Theodora Boutsikou, Νikolaos Athanasopoulos, Αntonios Μarmarinos, Dimitrios Gourgiotis, Αriadne Malamitsi-Puchner
OBJECTIVE: Fetal macrosomia is associated with cardiac hypertrophy and increased cardiovascular risk. Cardiac biomarkers may play diagnostic/prognostic role in cardiovascular disease. We tested whether cardiac biomarkers are differentially expressed in cord blood samples of full-term singleton large-for-gestational-age (LGA), as compared to appropriate-for-gestational-age (AGA) pregnancies. METHODS: Cardiotrophin-1 (CT-1), Titin, pentraxin (PTX-3) and soluble CD36 (sCD36) concentrations were determined in 80 cord blood samples from a) LGA pregnancies due to maternal diabetes (n = 8), overweight/obese (n = 11), excessive weight gain (n = 7), without specific pathology (n = 14), b) AGA normal pregnancies (controls, n = 40)...
March 15, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28296632/severe-neurologic-disorders-in-2-fetuses-with-zika-virus-infection-colombia
#18
Jorge Acosta-Reyes, Edgar Navarro, Maria José Herrera, Eloina Goenaga, Martha L Ospina, Edgar Parra, Marcela Mercado, Pablo Chaparro, Mauricio Beltran, Maria Luz Gunturiz, Lissethe Pardo, Catalina Valencia, Sandra Huertas, Jorge Rodríguez, Germán Ruiz, Diana Valencia, Lisa B Haddad, Sarah C Tinker, Cynthia A Moore, Hernando Baquero
We report the results of pathologic examinations of 2 fetuses from women in Colombia with Zika virus infection during pregnancy that revealed severe central nervous system defects and potential associated abnormalities of the eye, spleen, and placenta. Amniotic fluid and tissues from multiple fetal organs tested positive for Zika virus.
June 15, 2017: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/28295384/noninvasive-fetal-genotyping-of-paternally-inherited-alleles-using-targeted-massively-parallel-sequencing-in-parentage-testing-cases
#19
Donggui Yang, Hao Liang, Yu Gao, Shaobin Lin, Zhiming He, Jun Gao, Hongyu Sun, Qing Li, Xiaoyan Ma, Xueling Ou
BACKGROUND: Researchers have sought to develop a noninvasive protocol for paternity analysis that uses fetal cell-free DNA (cfDNA) in maternal plasma. Massively parallel sequencing (MPS) is expected to overcome this challenge because it enables the analysis of millions of DNA molecules at a single-base resolution. STUDY DESIGN AND METHODS: Seven women were involved in prenatal paternity testing cases. Before conventional invasive procedures, cfDNA was isolated from maternal plasma...
March 10, 2017: Transfusion
https://www.readbyqxmd.com/read/28295165/declining-invasive-prenatal-diagnostic-procedures-a-comparison-of-tertiary-hospital-and-national-data-from-2012-to-2015
#20
Kristine Johnson, Joanne Kelley, Virginia Saxton, Susan P Walker, Lisa Hui
BACKGROUND: In recent years, the superior accuracy of maternal plasma cell-free DNA-based prenatal screening has resulted in >50% national decline in amniocenteses and chorionic villus sampling (CVS), creating new implications for specialist training. OBJECTIVE: To compare the annual figures on amniocenteses and CVS in a tertiary hospital with national population-based trends between 2012 and 2015. METHODS: Retrospective study examining the amniocentesis and CVS procedures performed in a tertiary hospital between 2012 and 2015...
March 13, 2017: Australian & New Zealand Journal of Obstetrics & Gynaecology
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