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https://www.readbyqxmd.com/read/29242197/jak-signaling-regulates-germline-cyst-breakdown-and-primordial-follicle-formation-in-mice
#1
Kun Huang, Ye Wang, Tuo Zhang, Meina He, Guanghong Sun, Jia Wen, Hao Yan, Han Cai, Changfu Yong, Guoliang Xia, Chao Wang
In female mammals, primordial follicles consist of two types of cells, namely, oocytes and pregranulosa cells that surround the oocytes. The size of the primordial follicle pool determines the reproductive ability of female mammals. However, the underlying mechanisms controlling primordial follicle assembly remain unclear. In this study, we show that oocyte-derived Janus kinase (JAK) signaling is vital for germline cyst breakdown and primordial follicle formation in vitro JAK2 and JAK3 activity is increased while germline cysts are breaking down...
December 14, 2017: Biology Open
https://www.readbyqxmd.com/read/29239070/clinical-features-of-new-onset-systemic-lupus-erythematosus-in-pregnant-patients
#2
Chong Zhang, Mei-Ying Liang, Xue Xu, Xue-Wu Zhang, Shi Chen
AIM: This study was conducted to examine the clinical characteristics of new-onset systemic lupus erythematosus (SLE) during pregnancy. METHODS: We performed a retrospective study of all pregnancies in patients with SLE managed at The People's Hospital of Peking University from 2008 to 2015. In total, 97 pregnancies were identified and studied, 22 of which were first diagnosed with SLE during pregnancy or puerperium. RESULTS: New-onset SLE mainly occurred during the first and second pregnancy trimesters...
December 14, 2017: Journal of Obstetrics and Gynaecology Research
https://www.readbyqxmd.com/read/29237115/isolation-and-functional-examination-of-the-long-non-coding-rna-redrum
#3
Yerim Lee, Charny Park, Sanghyuk Lee, Daekee Lee, Jaesang Kim
Here, we report isolation of multiple long non-coding RNAs (lncRNAs) expressed tissue-specifically during murine embryogenesis. One of these, subsequently came to be known as Redrum, is expressed in erythropoietic cells in fetal liver and adult bone marrow. Redrum transcription is also detected during pregnancy in the spleen where extramedullary hematopoiesis takes place. In order to examine the function of Redrum in vivo, we generated a gene-targeted murine model and analyzed its embryonic and adult erythropoiesis...
December 12, 2017: Molecules and Cells
https://www.readbyqxmd.com/read/29236714/non-invasive-identification-of-protein-biomarkers-for-early-pregnancy-diagnosis-in-the-cheetah-acinonyx-jubatus
#4
Diana C Koester, David E Wildt, Morgan Maly, Pierre Comizzoli, Adrienne E Crosier
Approximately 80% of cheetahs living in typical zoological collections never reproduce. In more than 60% of breedings, the female is confirmed to ovulate, but parturition fails to occur. It is unknown if these non-pregnant intervals of elevated progesterone (deemed luteal phases) are conception failures or a pregnancy terminating in embryonic/fetal loss. There have been recent advances in metabolic profiling and proteome analyses in many species with mass spectrometry used to identify 'biomarkers' and mechanisms indicative of specific physiological states (including pregnancy)...
2017: PloS One
https://www.readbyqxmd.com/read/29234808/effect-of-levothyroxine-on-miscarriage-among-women-with-normal-thyroid-function-and-thyroid-autoimmunity-undergoing-in-vitro-fertilization-and-embryo-transfer-a-randomized-clinical-trial
#5
Haining Wang, Hongwei Gao, Hongbin Chi, Lin Zeng, Wenhua Xiao, Yanrong Wang, Rong Li, Ping Liu, Chen Wang, Qing Tian, Zehong Zhou, Jin Yang, Ye Liu, Rui Wei, Ben Willem J Mol, Tianpei Hong, Jie Qiao
Importance: Presence of thyroid autoantibodies in women with normal thyroid function is associated with increased risk of miscarriage. Whether levothyroxine treatment improves pregnancy outcomes among women undergoing in vitro fertilization and embryo transfer (IVF-ET) is unknown. Objective: To determine the effect of levothyroxine on miscarriage among women undergoing IVF-ET who had normal thyroid function and tested positive for thyroid autoantibodies. Design, Setting, and Participants: An open-label, randomized clinical trial involving 600 women who tested positive for the antithyroperoxidase antibody and were being treated for infertility at Peking University Third Hospital from September 2012 to March 2017...
December 12, 2017: JAMA: the Journal of the American Medical Association
https://www.readbyqxmd.com/read/29229552/caspase-6-is-a-dispensable-enabler-of-adult-mammalian-axonal-degeneration
#6
V Woo, C Cheng, A Duraikannu, A Chandrasekhar, K Purdy, J A Martinez, D W Zochodne
The progress of axonal degeneration (AxD) following injury or insult impacts both recovery from axonal transection and protection of axons from diverse insults, or axonopathy. Here we provide evidence that increases in capase-6 (Casp6) expression and action contribute to the progression of AxD. The expression of Casp6 protein and mRNA in distal branches of sensory axons undergoing AxD was confirmed. We developed and utilized a new model of axonopathy in live mice by serially visualizing the viability of cutaneous axons in the ear pinna that expressed an axonal YFP transgene, in response to capasaicin-induced AxD...
December 8, 2017: Neuroscience
https://www.readbyqxmd.com/read/29229361/a-literature-review-on-maternal-fetal-and-reproductive-disorders-of-toxoplasma-gondii-infection
#7
REVIEW
Shirzad Fallahi, Ali Rostami, Malihe Nourollahpour Shiadeh, Hamed Behniafar, Shahrokh Paktinat
BACKGROUND: Toxoplasma gondii infection is one of the most prevalent infectious disease with worldwide distribution. Congenital toxoplasmosis is annually responsible for 1.20 million disability-adjusted life years around the world, but often it is overlooked many countries. METHODS: We performed an updated review to summarize the current researches on fetal, neonatal and maternal consequences of T. gondii infection and also adverse effects of toxoplasmosis on women reproductive organs...
December 8, 2017: Journal of Gynecology Obstetrics and Human Reproduction
https://www.readbyqxmd.com/read/29228316/identification-of-a-critical-window-for-ganciclovir-induced-disruption-of-testicular-development-in-rats
#8
Katlyn Barp Meyer, Anderson Joel Martino Andrade, Amanda Caroline Venturelli, Diogo Henrique Kita, Dária Louise Barbosa Machado, Rafaela Adams Philipsen, Alluanan Adelson do Nascimento Silva, Isabelle Cantão, Davyson Moreira, Valdemiro Amaro da Silva Junior, Taiza Stumpp, Rosana Nogueira Morais
Ganciclovir (GCV) has been implicated in the development of testicular alterations. Exposure on gestational day (GD) 10 in rats induced permanent effects, including focal reduction or absence of germ cells (Sertoli cell-only tubules). Because the timing of exposure can be critical for testicular effects, we exposed rat dams to 300 mg/kg GCV (three 100mg/kg subcutaneous injections) on GD10, 14 and 19, when germ cells have high rates of migration, proliferation and are mitotically quiescent, respectively. Males exposed to GCV in utero on GD10 and 14 were evaluated for androgenization markers, serum and fecal androgens, and testicular histomorphometry at adulthood...
December 7, 2017: Toxicological Sciences: An Official Journal of the Society of Toxicology
https://www.readbyqxmd.com/read/29227711/diffuse-chorangiomatosis-as-a-cause-of-cardiomegaly-microangiopathic-hemolytic-anemia-and-thrombocytopenia-in-a-newborn
#9
Shreyas Arya, Vidit Bhargava, Joan Richardson, Hal K Hawkins
INTRODUCTION: The hallmark of diffuse chorangiomatosis is capillary dysvasculogenesis, diffusely involving the placenta. It can cause massive placental enlargement and may have adverse fetal effects. CASE REPORT: A 32 weeks gestation male infant was born via cesarean section and had a placenta weighing 900 g. There was diffuse vascular proliferation involving the stem villi and intermediate villi. Short Nucleotide Polymorphism (SNP) microarray analysis of the placenta showed no biparental mosaicism or loss of heterozygosity, ruling out placental mesenchymal dysplasia...
December 11, 2017: Fetal and Pediatric Pathology
https://www.readbyqxmd.com/read/29227690/effect-of-the-induction-of-transgenerational-obesity-on-maternal-fetal-parameters
#10
Thaigra Sousa Soares, Ana Paula Andreolla, Carolina Abreu Miranda, Eduardo Klöppel, Luhara Silva Rodrigues, Rafaianne Queiroz Moraes-Souza, Débora Cristina Damasceno, Gustavo Tadeu Volpato, Kleber Eduardo Campos
Maternal obesity can cause complications for both women and their offspring for generations. Therefore, we intended to verify the repercussions of induction of transgenerational obesity on biochemical parameters, reproductive performance, and congenital anomaly frequency in Wistar rats. Female rats were used from successive generations. The female rats of parental generation (F0, n=10) were mated to obtain their offspring (F1 generation). F1 female rats received a monosodium glutamate (MSG) solution to induce obesity (n=07) or vehicle (control, n=06) during the neonatal period...
December 11, 2017: Systems Biology in Reproductive Medicine
https://www.readbyqxmd.com/read/29224680/pregnancy-in-systemic-lupus-erythematosus-and-antiphospholipid-syndrome
#11
REVIEW
Rebecca Fischer-Betz, Christof Specker
Systemic lupus erythematosus (SLE) is a chronic inflammatory autoimmune disease with a high prevalence in females of childbearing age. Pregnancy in SLE nowadays has favorable outcomes for the majority of women. However, flares of disease activity, preeclampsia, fetal loss, and preterm birth are well-known risks in such pregnancies. Anti-SS-A(Ro)/SS-B(La) antibodies put fetuses at risk for congenital heart block and neonatal lupus. Several risk factors for adverse pregnancy outcomes have been identified. Women with antiphospholipid antibodies or antiphospholipid syndrome and lupus nephritis represent a group with high risk for obstetric complications...
June 2017: Best Practice & Research. Clinical Rheumatology
https://www.readbyqxmd.com/read/29223625/development-and-validation-of-a-predictive-model-for-excessive-postpartum-blood-loss-a-retrospective-cohort-study
#12
Ana Rubio-Álvarez, Milagros Molina-Alarcón, Ángel Arias-Arias, Antonio Hernández-Martínez
BACKGROUND: postpartum haemorrhage is one of the leading causes of maternal morbidity and mortality worldwide. Despite the use of uterotonics agents as preventive measure, it remains a challenge to identify those women who are at increased risk of postpartum bleeding. OBJECTIVE: to develop and to validate a predictive model to assess the risk of excessive bleeding in women with vaginal birth. DESIGN: retrospective cohorts study. SETTING: "Mancha-Centro Hospital" (Spain)...
November 26, 2017: International Journal of Nursing Studies
https://www.readbyqxmd.com/read/29216197/shift-toward-greater-pathologic-post-myocardial-infarction-remodeling-with-loss-of-the-adaptive-hypertrophic-signaling-of-alpha1-adrenergic-receptors-in-mice
#13
Che-Chung Yeh, Yanying Fan, Yanchun Xu, Yi-Lin Yang, Paul C Simpson, Michael J Mann
RATIONALE: We have hypothesized that post-infarction cardiac remodeling can be influenced by shifts in the balance between intracellular mediators of "pathologic" and "physiologic" hypertrophy. Although alpha1 adrenergic receptors (alpha1-ARs) mediate pro-adaptive hypertrophy during pressure overload, little is known about their role or downstream mediators after myocardial infarction. METHODS: We performed loss-of-function experiments via coronary ligation in alpha1A-AR knockout (AKO) mice...
2017: PloS One
https://www.readbyqxmd.com/read/29212620/one-year-outcome-for-congenital-diaphragmatic-hernia-results-from-the-french-national-register
#14
François Barrière, Fabrice Michel, Anderson D Loundou, Virginie Fouquet, Elsa Kermorvant, Sébastien Blanc, Elisabeth Carricaburu, Amélie Desrumaux, Odile Pidoux, Alexis Arnaud, Nicolas Berte, Thierry Blanc, Frederic Lavrand, Guillaume Levard, Isabelle Rayet, Sylvain Samperiz, Anne Schneider, Marie-Odile Marcoux, Norbert Winer, Yann Chaussy, Valérie Datin-Dorriere, Quentin Ballouhey, Aurélien Binet, Charles Muszynski, Jean Breaud, Armelle Garenne, Laurent Storme, Julia Boubnova
OBJECTIVE: To evaluate the status of congenital diaphragmatic hernia (CDH) management in France and to assess predictors of adverse outcomes. STUDY DESIGN: We reviewed the first-year outcome of all cases of CDH reported to the French National Register in 2011. RESULTS: A total of 158 cases were included. Of these, 83% (131) were prenatally diagnosed, with a mortality rate of 39% (44 of 112) for live born infants with a known outcome at hospital discharge...
December 4, 2017: Journal of Pediatrics
https://www.readbyqxmd.com/read/29212457/the-decision-delivery-interval-in-emergency-caesarean-section-and-its-associated-maternal-and-fetal-outcomes-at-a-referral-hospital-in-northern-tanzania-a-cross-sectional-study
#15
Birjna A Hirani, Bariki L Mchome, Nicholaus S Mazuguni, Michael J Mahande
BACKGROUND: Decision delivery interval (DDI) is the time line between a decision to conduct an emergency caesarean section and actual delivery of the baby. Prolong DDI constitute a third phase delay in provision of emergency obstetric care. Intervention designed to minimize DDI are vital, in attempt to prevent maternal morbidity and neonatal morbidity and mortality. The feasibility and practicability of the recommended DDI in recent studies have been questioned especially in limited resource setting and therefore the objective of our study was to determine the DDI and its associated fetalmaternal outcomes at a tertiary referral hospital in Tanzania...
December 7, 2017: BMC Pregnancy and Childbirth
https://www.readbyqxmd.com/read/29209482/the-place-for-prophylactic-cerclage-in-the-infertile-patient-with-established-cervical-incompetence-who-conceived-twins-after-septum-reduction
#16
Jennifer Deanna, Omar Abuzied, Fahmi Islam, Ivana Vettriano, Frederico Rocha, Mostafa Abuzeid
Introduction: It is well known that cervical incompetence and associated preterm birth confers greater morbidity and mortality on birth outcomes, with an additional increased risk of cervical incompetence in higher order gestations. While the pathophysiology of cervical incompetence has yet to be elucidated, research has identified risk factors and assessed outcomes of numerous interventions. Cervical cerclage has been shown, in certain situations involving singleton pregnancies, to improve outcomes...
June 2017: Facts, Views & Vision in ObGyn
https://www.readbyqxmd.com/read/29207085/chronic-prenatal-hypoxia-impairs-cochlear-development-a-mechanism-involving-connexin26-expression-and-promoter-methylation
#17
Jingcang Lin, Huang Huang, Guorong Lv, Xiangyang Xu, Wendong Lin, Xianyan Xu, Jing Cheng, Ming Zheng
Chronic prenatal hypoxia is a damaging to fetal development and may have various consequences, including hearing loss. Connexin 26 (Cx26) is one of the major protein subunits required for gap junction formation, and has an important role in maintaining homeostasis in the cochlea and normal hearing. Cx26 mutation and expression abnormality are closely associated with inherited nonsyndromic deafness, but the association between Cx26 and prenatal hypoxia is less established. The present study aimed to examine Cx26 expression and aberrant methylation the Cx26 promoter region in the cochlea from rats exposed to chronic prenatal hypoxia...
December 1, 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/29206135/ethanol-e-impairs-fetal-brain-gsh-homeostasis-by-inhibiting-excitatory-amino-acid-carrier-1-eaac1-mediated-cysteine-transport
#18
Dhyanesh Patel, Lenin Mahimainathan, Madhusudhanan Narasimhan, Marylatha Rathinam, George Henderson
Central among the fetotoxic responses to in utero ethanol (E) exposure is redox-shift related glutathione (GSH) loss and apoptosis. Previously, we reported that despite an E-generated Nrf2 upregulation, fetal neurons still succumb. In this study, we investigate if the compromised GSH results from an impaired inward transport of cysteine (Cys), a precursor of GSH in association with dysregulated excitatory amino acid carrier1 (EAAC1), a cysteine transporter. In utero binge model involves administration of isocaloric dextrose or 20% E (3...
December 5, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29205585/re-influence-of-chorionicity-and-gestational-age-at-single-fetal-loss-on-risk-of-preterm-birth-in-twin-pregnancy-analysis-of-stork-multiple-pregnancy-cohort-f-d-antonio-b-thilaganathan-t-dias-and-a-khalil-on-behalf-of-the-southwest-thames-obstetric-research
#19
COMMENT
https://www.readbyqxmd.com/read/29201668/efficacy-of-intrauterine-injection-of-granulocyte-colony-stimulating-factor-g-csf-on-treatment-of-unexplained-recurrent-miscarriage-a-pilot-rct-study
#20
Simin Zafardoust, Mohammad Mehdi Akhondi, Mohammad Reza Sadeghi, Afsaneh Mohammadzadeh, Atousa Karimi, Sheyda Jouhari, Soheila Ansaripour
Background: Endometrium undergoes several changes in structure and cellular composition during pregnancy. Granulocyte Colony-stimulating Factor (GCS-F) is an important cytokine with critical role in embryo implantation and pregnancy. The aim of the present study was to evaluate the impact of intrauterine injection of G-CSF in patients who suffer from unexplained recurrent miscarriage (RM). Methods: In the present randomized clinical trial, a total of 68 patients were randomly allocated into two study groups including intrauterine G-CSF (n=23, 300 μg) injection and control group (n=27, no G-CSF injection)...
October 2017: Journal of Reproduction & Infertility
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