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https://www.readbyqxmd.com/read/28529453/the-role-of-germ-cell-loss-during-primordial-follicle-assembly-a-review-of-current-advances
#1
REVIEW
Yuan-Chao Sun, Xiao-Feng Sun, Paul W Dyce, Wei Shen, Hong Chen
In most female mammals, early germline development begins with the appearance of primordial germ cells (PGCs), and develops to form mature oocytes following several vital processes. It remains well accepted that significant germ cell apoptosis and oocyte loss takes place around the time of birth. The transition of the ovarian environment from fetal to neonatal, coincides with the loss of germ cells and the timing of follicle formation. All told it is common to lose approximately two thirds of germ cells during this transition period...
2017: International Journal of Biological Sciences
https://www.readbyqxmd.com/read/28527483/single-fetal-death-in-monochorionic-twin-pregnancy-co-twin-prognosis-and-neonatal-outcome
#2
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/28526027/description-of-inter-institutional-referrals-after-admission-for-labor-and-delivery-a-prospective-population-based-cohort-study-in-rural-maharashtra-india
#3
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/28521630/isolated-ventricular-noncompaction-cardiomyopathy-presenting-as-fetal-hydrops-at-24-weeks-gestation
#4
Jane E Armes, Lisa Squires, Rohan Lourie, Mark Williams, Renee Gallagher, Gareth Price, Andrew Stubbs, Sigrid Ma Swagemakers, Peter J van der Spek, James Harraway, Joseph Thomas, Deon J Venter
Ventricular noncompaction cardiomyopathy is a rare form of congenital cardiomyopathy with increasing evidence of genetic etiology, especially when presenting in childhood. Fetal presentation is rare. We describe a case of fetal hydrops, presenting at 24 weeks gestation and leading to intrapartum death at 26 weeks gestation. Autopsy examination revealed characteristic features of left ventricular noncompaction. A genetic analysis identified a constellation of variants of unknown significance in MYH6, TNNC1, and MYBPC3, genes known to be important in sarcomeric function...
June 2017: Pediatric and Developmental Pathology
https://www.readbyqxmd.com/read/28514958/neonatal-respiratory-morbidity-following-exposure-to-chorioamnionitis
#5
Amy Metcalfe, Sarka Lisonkova, Yasser Sabr, Amelie Stritzke, K S Joseph
BACKGROUND: There are conflicting results in the literature on the impact of chorioamnionitis on neonatal respiratory morbidities. However, most studies are based on small clinical samples and fail to account for the competing risk of perinatal death. This study aimed to determine whether chorioamnionitis affects the incidence of respiratory distress syndrome (RDS) and bronchopulmonary dysplasia (BPD) after accounting for the increased risk of death. METHODS: Retrospective cohort study using linked birth and infant death registration and hospitalization records from Washington State between 2002 and 2011 (n = 763,671 singleton infants and n = 56,537 singleton preterm infants)...
May 17, 2017: BMC Pediatrics
https://www.readbyqxmd.com/read/28514021/an-update-systematic-review-of-fetal-death-congenital-anomalies-and-fertility-disorders-among-health-care-workers
#6
REVIEW
Charline Warembourg, Sylvaine Cordier, Ronan Garlantézec
BACKGROUND: Health care workers (HCWs) are occupationally exposed to various hazards, some associated with adverse pregnancy outcomes in previous reviews. This systematic review aims at synthesizing the recent literature on occupational exposures among HCWs related to fetal death, congenital anomalies, and fertility disorders. METHODS: We searched the Medline database from 2000 to 2015 for articles about all potential occupational exposures of women and men working in this sector...
June 2017: American Journal of Industrial Medicine
https://www.readbyqxmd.com/read/28512745/implementation-of-multi-disciplinary-care-reduces-maternal-mortality-in-women-with-sickle-cell-disease-living-in-low-resource-setting
#7
Eugenia Vicky Asare, Edeghonghon Olayemi, Theodore Boafor, Yvonne Dei-Adomakoh, Enoch Mensah, Harriet Ghansah, Yvonne Osei-Bonsu, Selina Crabbe, Latif Musah, Charles Hayfron-Benjamin, Brittany Covert, Adetola A Kassim, Andra James, Mark Rodeghier, Michael R DeBaun, Samuel A Oppong
Sickle cell disease (SCD) is associated with adverse pregnancy outcome. In women with SCD living in low-resource settings, pregnancy is associated with significantly increased maternal and perinatal mortality rates. We tested the hypothesis that implementing a multidisciplinary obstetric and hematology care team in a low-resource setting would significantly reduce maternal and perinatal mortality rates. We conducted a before-and-after study, at the Korle-Bu Teaching Hospital in Accra, Ghana, to evaluate the effect of a multidisciplinary obstetric-hematology care team for women with SCD in a combined SCD-Obstetric Clinic...
May 16, 2017: American Journal of Hematology
https://www.readbyqxmd.com/read/28509322/polymorphic-variants-of-genes-involved-in-choline-pathway-and-the-risk-of-intrauterine-fetal-death
#8
Krzysztof Drews, Agata Różycka, Magdalena Barlik, Andrzej Klejewski, Grażyna Kurzawińska, Hubert Wolski, Marian Majchrzycki, Agnieszka Gryszczyńska, Adam Kamiński, Agnieszka Seremak-Mrozikiewicz
OBJECTIVES: Choline and folate metabolism disturbances may be involved in the occurrence of intrauterine fetal death (IUFD). The proper activity of this metabolism could be determined by genetic variants involved in choline pathway e.g. CHKA (gene encoding choline kinase α), PCYT1A (gene encoding CCTα) and CHDH (gene encoding choline dehydrogenase). Our study aimed at determining the genotype and allele frequencies of CHKA rs7928739, PCYT1A rs712012, PCYT1A rs7639752, CHDH rs893363 and CHDH rs2289205 polymorphisms in mothers with IUFD occurrence...
2017: Ginekologia Polska
https://www.readbyqxmd.com/read/28506452/performing-nuclear-medicine-examinations-in-pregnant-women
#9
REVIEW
Paolo Zanotti-Fregonara, Elif Hindie
The number of nuclear medicine examinations performed worldwide has been steadily increasing over the last few years. By consequence, an ever increasing number of pregnant women are likely to be exposed to radioisotopes. The range of doses encountered in nuclear medicine practice is well below the threshold for deterministic effects, such as embryonic death, birth defects or mental retardation. According to the linear no-threshold hypothesis, however, stochastic effects (e.g. an increased risk of cancer) remain possible even at this dose range...
May 11, 2017: Physica Medica: PM
https://www.readbyqxmd.com/read/28505611/novel-insights-in-fetal-cardiomyopathy-due-to-in-utero-herpes-simplex-virus-infection
#10
Tamara Margit Jutta Pahlitzsch, Elisa Theresa Helbig, Nanette Sarioglu, Larry Hinkson, Katharina von Weizsäcker, Wolfgang Henrich
This is a case report of fatal cardiomyopathy in a fetus following maternal intrauterine infection with herpes simplex virus (HSV), despite the mother having no symptoms of an infection. The fetus showed signs of a disseminated infection affecting the heart, brain, lungs, liver, adrenal glands, and skin. HSV cardiomyopathy, characterized by vast necrosis, extensive calcifications, and inflammatory infiltration, was found to be the cause of intrauterine fetal death. To our knowledge, this is a unique report of an asymptomatic maternal nonprimary or recurrent HSV infection that induced a transmission of HSV resulting in extensive and fatal changes in the fetal heart...
May 16, 2017: Fetal Diagnosis and Therapy
https://www.readbyqxmd.com/read/28504706/the-mitochondrial-respiratory-chain-is-essential-for-haematopoietic-stem-cell-function
#11
Elena Ansó, Samuel E Weinberg, Lauren P Diebold, Benjamin J Thompson, Sébastien Malinge, Paul T Schumacker, Xin Liu, Yuannyu Zhang, Zhen Shao, Mya Steadman, Kelly M Marsh, Jian Xu, John D Crispino, Navdeep S Chandel
Adult and fetal haematopoietic stem cells (HSCs) display a glycolytic phenotype, which is required for maintenance of stemness; however, whether mitochondrial respiration is required to maintain HSC function is not known. Here we report that loss of the mitochondrial complex III subunit Rieske iron-sulfur protein (RISP) in fetal mouse HSCs allows them to proliferate but impairs their differentiation, resulting in anaemia and prenatal death. RISP-null fetal HSCs displayed impaired respiration resulting in a decreased NAD(+)/NADH ratio...
May 15, 2017: Nature Cell Biology
https://www.readbyqxmd.com/read/28503718/photodithazine-photodynamic-effect-on-viability-of-9l-lacz-gliosarcoma-cell-line
#12
Leticia C Fontana, Juliana G Pinto, André H C Pereira, Cristina P Soares, Leandro J Raniero, Juliana Ferreira-Strixino
Even with the advances of conventional treatment techniques, the nervous system cancer prognosis is still not favorable to the patient which makes alternative therapies needed to be studied. Photodynamic therapy (PDT) is presented as a promising therapy, which employs a photosensitive (PS) agent, light wavelength suitable for the PS agent, and molecular oxygen, producing reactive oxygen species in order to induce cell death. The aim of this study is to observe the PDT action in gliosarcoma cell using a chlorin (Photodithazine, PDZ)...
May 15, 2017: Lasers in Medical Science
https://www.readbyqxmd.com/read/28501274/impact-of-fetal-growth-on-pregnancy-outcomes-in-women-with-severe-preeclampsia
#13
Ebony B Carter, Shayna N Conner, Alison G Cahill, Roxane Rampersad, George A Macones, Methodius G Tuuli
OBJECTIVE: To estimate whether pregnancy outcomes in women with severe preeclampsia (sPE) with small for gestational age (SGA) fetuses differ from those with sPE without SGA or isolated SGA. STUDY DESIGN: We conducted a retrospective cohort study of consecutive non-anomalous, livebirths in a single tertiary care institution from 2004 to 2008. We compared pregnancy outcomes in women who had sPE with SGA (birthweight<10th percentile), and sPE without SGA to those with isolated SGA as reference...
April 2017: Pregnancy Hypertension
https://www.readbyqxmd.com/read/28496945/gestational-exposure-to-silymarin-increases-susceptibility-of-balb-c-mice-fetuses-to-apoptosis
#14
Mahbobe Gholami, Seyed Adel Moallem, Mohammad Afshar, Leila Etemad, Gholamreza Karimi
BACKGROUND: Silymarin is a flavonolignan that has been the subject of research to evaluate the beneficial properties for decades. Silymarin has been known for its potent cytoprotective, hepatoprotective and antioxidant activities. The goal of the present study was to gain a deeper understanding of possible molecular mechanisms of apoptosis of the injuries induced by silymarin on BALB/c mice fetuses. METHODS: The present experimental study was carried out in virgin female BALB/c mice...
April 2017: Avicenna Journal of Medical Biotechnology
https://www.readbyqxmd.com/read/28495235/prenatal-detection-of-megacystis-not-always-an-adverse-prognostic-factor-experience-in-25-consecutive-cases-in-a-tertiary-referral-center-with-complete-neonatal-outcome-and-follow-up
#15
Marcella Pellegrino, Daniela Visconti, Vincenzo Davide Catania, Luisa D'Oria, Carlo Manzoni, Maria Giovanna Grella, Alessandro Caruso, Lucia Masini, Giuseppe Noia
INTRODUCTION: Megacystis is a condition of abnormal enlarged fetal bladder for gestational age, which is usually associated with urological malformations that may constitute a life-threatening condition for the baby. OBJECTIVE: The purpose of this study was to assess the prognostic and etiological criteria of fetal megacystis and to describe the neonatal outcome in a large series collected in a single tertiary center. STUDY DESIGN: A retrospective observational study was conducted between 2008 and 2012...
April 14, 2017: Journal of Pediatric Urology
https://www.readbyqxmd.com/read/28495194/neospora-caninum-abortion-in-a-malayan-tapir-tapirus-indicus
#16
M Peters, C Osmann, P Wohlsein, G Schares
A captive 17-year old female Malayan tapir (Tapirus indicus) aborted a fetus with a crown rump length of 19cm in early pregnancy. The fetus showed an early state of mummification. Histologically, a multifocal mononuclear encephalitis, myocarditis and periportal hepatitis was present indicating a possible protozoal cause of abortion. Although immunohistologically, Neospora (N.) caninum antigen could not be demonstrated, N. caninum DNA was detected by Polymerase Chain Reaction (PCR) in brain, heart, liver and lung of the fetus...
May 30, 2017: Veterinary Parasitology
https://www.readbyqxmd.com/read/28494269/medical-conditions-associated-with-recurrent-miscarriage-is-bmi-the-tip-of-the-iceberg
#17
Mushi J Matjila, Anne Hoffman, Zephne M van der Spuy
BACKGROUND: In contrast to sporadic miscarriage, recurrent miscarriage (RM) is a rare entity which affects 1% of couples attempting conception. It is distressing for couples and healthcare professionals as the aetiology is unclear with limited treatment options. Apart from anti-phospholipid syndrome (APS), the strength of associations between RM and commonly investigated endocrine, autoimmune, thrombophilic and uterine structural abnormalities remains uncertain and variable. OBJECTIVES: To assess the prevalence of commonly investigated medical conditions associated with RM...
May 3, 2017: European Journal of Obstetrics, Gynecology, and Reproductive Biology
https://www.readbyqxmd.com/read/28493842/mesenchymal-stem-cell-infiltration-during-neoplastic-transformation-of-the-human-prostate
#18
W Nathaniel Brennen, Baohui Zhang, Ibrahim Kulac, L Nelleke Kisteman, Lizamma Antony, Hao Wang, Alan K Meeker, Angelo M De Marzo, Isla P Garraway, Samuel R Denmeade, John T Isaacs
Mesenchymal Stem Cells (MSCs) have been identified in prostate cancer, raising the critical question of their physical and temporal source. Therefore, MSCs were quantified and characterized in benign and malignant prostate tissue representing different disease states and a wide range of age groups from fetal development through adult death using analytical and functional methodologies. In contrast to lineage-restricted Mesenchymal Progenitor Cells (MPCs) found in normal prostate tissue, MSCs with tri-lineage differentiation potential (adipogenesis, osteogenesis, and chondrogenesis) are identified in prostate tissue from a subset of men with prostate cancer, consistent with an influx of more stem-like progenitors (i...
April 21, 2017: Oncotarget
https://www.readbyqxmd.com/read/28493447/the-outcomes-and-prognostic-factors-of-fetal-hydrothorax-associated-with-trisomy-21
#19
Yasuo Yumoto, Seung Chik Jwa, Seiji Wada, Yuichiro Takahashi, Keisuke Ishii, Kiyoko Kato, Noriaki Usui, Haruhiko Sago
OBJECTIVES: To determine the characteristics, outcomes and prognostic factors of fetal hydrothorax (FHT) with trisomy 21. METHODS: A nationwide survey was conducted on FHT fetuses with trisomy 21 delivered after 22 weeks' gestation between January 2007 and December 2011 at perinatal centers. RESULTS: The 91 cases of FHT with trisomy 21 included 28 (30.8%) diagnosed in utero and 63 (69.2%) diagnosed after birth. The natural remission rate was 6...
May 11, 2017: Prenatal Diagnosis
https://www.readbyqxmd.com/read/28491132/obstetric-medical-care-and-training-in-the-united-kingdom
#20
Adam D Jakes, Ingrid Watt-Coote, Matthew Coleman, Catherine Nelson-Piercy
The UK confidential enquiry into maternal deaths identified poor management of medical problems in pregnancy to be a contributory factor to a large proportion of indirect maternal deaths. Maternal (obstetric) medicine is an exciting subspecialty that encompasses caring for both women with pre-existing medical conditions who become pregnant, as well as those who develop medical conditions in pregnancy. Obstetrics and gynaecology trainees have some exposure to maternal medicine through their core curriculum and can then complete an advanced training skills module, subspecialise in maternal-fetal medicine or take time out to complete the Royal College of Physicians membership examination...
March 2017: Obstetric Medicine
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