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induction of abortion

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https://www.readbyqxmd.com/read/28315926/dissection-of-a-major-qtl-qhir1-conferring-maternal-haploid-induction-ability-in-maize
#1
Sudha K Nair, Willem Molenaar, Albrecht E Melchinger, Prasanna M Boddupalli, Leocadio Martinez, Luis Antonio Lopez, Vijay Chaikam
Among the qhir11 and qhir12 sub-regions of a major QTL qhir1, only qhir11 has significant effect on maternal haploid induction, segregation distortion and kernel abortion. In vivo haploid induction in maize can be triggered in high frequencies by pollination with special genetic stocks called haploid inducers. Several genetic studies with segregating populations from non-inducer x inducer crosses identified a major QTL, qhir1, on chromosome 1.04 contributing to in vivo haploid induction. A recent Genome Wide Association Study using 51 inducers and 1482 non-inducers also identified two sub-regions within the qhir1 QTL region, named qhir11 and qhir12; qhir12 was proposed to be mandatory for haploid induction because the haplotype of qhir11 was also present in some non-inducers and putative candidate genes coding for DNA and amino acid binding proteins were identified in the qhir12 region...
March 18, 2017: TAG. Theoretical and Applied Genetics. Theoretische und Angewandte Genetik
https://www.readbyqxmd.com/read/28298904/rna-primer-extension-hinders-dna-synthesis-by-escherichia-coli-mutagenic-dna-polymerase-iv
#2
Tommy F Tashjian, Ida Lin, Verena Belt, Tiziana M Cafarelli, Veronica G Godoy
In Escherichia coli the highly conserved DNA damage regulated dinB gene encodes DNA Polymerase IV (DinB), an error prone specialized DNA polymerase with a central role in stress-induced mutagenesis. Since DinB is the DNA polymerase with the highest intracellular concentrations upon induction of the SOS response, further regulation must exist to maintain genomic stability. Remarkably, we find that DinB DNA synthesis is inherently poor when using an RNA primer compared to a DNA primer, while high fidelity DNA polymerases are known to have no primer preference...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28282779/sequential-use-of-foley-catheter-with-misoprostol-for-second-trimester-pregnancy-termination-in-women-with-and-without-caesarean-scars-a-prospective-cohort-study
#3
Melih Velipasaoglu, Cem Yagmur Ozdemir, Burcu Ozek, Reyhan Ayaz, Huseyin Mete Tanir
PURPOSE: The aim of this study is to evaluate the effectiveness and safety of misoprostol and Foley catheter in second trimester termination in women with and without caesarean section (CS) scars. MATERIALS AND METHODS: Women with an indication for pregnancy termination between 14 and 22 completed weeks of gestation were included to the study. Enrolled women were allocated into three groups: (1) women with no history of CS, (2) women with one CS and (3) women with ≥2 CS...
February 28, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28254231/transcervical-double-balloon-catheter-as-an-alternative-and-salvage-method-for-medical-termination-of-pregnancy-in-midtrimester
#4
Yi-An Tu, Chih-Ling Chen, Yen-Ling Lai, Shin-Yu Lin, Chien-Nan Lee
OBJECTIVE: Termination of pregnancy in midtrimester can be performed surgically or medically. The aim of this study was to evaluate the medical methods, and the additional efficacy of using a transcervical double-balloon catheter in midtrimester termination. MATERIALS AND METHODS: In this retrospective study, we included 167 pregnant women admitted during the period from January 1, 2011, to June 31, 2015, who were between 14 weeks and 28 weeks of gestation, and underwent intended termination of pregnancy at our center...
February 2017: Taiwanese Journal of Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28224721/progesterone-driven-local-regulatory-t-cell-induction-does-not-prevent-fetal-loss-in-the-cba-j%C3%A3-dba-2j-abortion-prone-model
#5
Anne Schumacher, Dominique Dauven, Ana C Zenclussen
PROBLEM: Best known for its endocrine and immunologic properties, progesterone (P4) is a pivotal player for pregnancy success. However, the immunologic actions underlying P4 protection are not completely understood. Here, we investigated whether P4 application in a murine abortion-prone combination regulates regulatory T cells (Treg) and dendritic cells (DCs) and thereby affects pregnancy outcome. METHOD OF STUDY: Progesterone or vehicle was applied to DBA/2J-mated CBA/J abortion-prone animals in early pregnancy...
March 2017: American Journal of Reproductive Immunology: AJRI
https://www.readbyqxmd.com/read/28153742/adoption-decision-making-among-women-seeking-abortion
#6
Gretchen Sisson, Lauren Ralph, Heather Gould, Diana Greene Foster
BACKGROUND: Little is known about how adoption factors into pregnancy decision making, particularly when abortion is unavailable. METHODS: We used data from the Turnaway Study, a longitudinal study of 956 women seeking abortion, including 231 women denied abortions owing to gestational limits. Through semiannual quantitative interviews, we assessed the frequency with which women denied abortion considered and choose adoption, and, among adoption participants, decision satisfaction...
January 30, 2017: Women's Health Issues: Official Publication of the Jacobs Institute of Women's Health
https://www.readbyqxmd.com/read/28109093/-clinical-efficacy-and-safety-of-controlled-release-dinoprostone-insert-a-multicenter-retrospective-study
#7
Xue-Yuan Li, Yue-Wen Guo, Yan-Wen Xu, Bin Zhu, Xue-Xue Wu, Xiang Chen, Xiao-Yi Wang, Dun-Jin Chen, Hui Chen, Jian-Ping Zhang, Zhi-Jian Wang, Sheng-Li An
OBJECTIVE: To analyze the effectiveness and safety of controlled-release dinoprostone insert for term labor induction in the Pearl River Delta of Guangdong province. METHODS: Twenty hospitals using controlled-release dinoprostone insert for term labor induction in the Pearl River Delta of Guangdong province were stratified into provincial hospitals and municipal hospitals, and three hospitals of each level were selected as research units. According to the inclusion and exclusion criteria, 1390 pregnant women receiving term labor induction using controlled-release dinoprostone insert were retrospectively analyzed to evaluate the the effectiveness and safety with another 957 pregnant women with induced abortion using oxytocin as the control group...
January 20, 2017: Nan Fang Yi Ke da Xue Xue Bao, Journal of Southern Medical University
https://www.readbyqxmd.com/read/28007981/frontline-science-myeloid-derived-suppressor-cells-mdscs-facilitate-maternal-fetal-tolerance-in-mice
#8
Suzanne Ostrand-Rosenberg, Pratima Sinha, Chas Figley, Ramses Long, DoHwan Park, Darryl Carter, Virginia K Clements
During successful pregnancy, a woman is immunologically tolerant of her genetically and antigenically disparate fetus, a state known as maternal-fetal tolerance. How this state is maintained has puzzled investigators for more than half a century. Diverse, immune and nonimmune mechanisms have been proposed; however, these mechanisms appear to be unrelated and to act independently. A population of immune suppressive cells called myeloid-derived suppressor cells (MDSCs) accumulates in pregnant mice and women. Given the profound immune suppressive function of MDSCs, it has been suggested that this cell population may facilitate successful pregnancy by contributing to maternal-fetal tolerance...
December 22, 2016: Journal of Leukocyte Biology
https://www.readbyqxmd.com/read/27998857/-clinical-outcome-of-in-vitro-fertilization-or-intracytoplasmic-sperm-injection-embryo-transfer-in-women-aged-40-years-and-above
#9
Xing-Yu Zhou, Shu-Xian Feng, Xue-Lan Li, Yu-Dong Liu, Xin Chen, De-Sheng Ye, Jing Niu, Shi-Ling Chen
OBJECTIVE: To investigate the clinical outcomes in vitro fertilization or intracytoplasmic sperm injection-embryo transfer (IVF/ICSI-ET) in women aged over 40 years. METHODS: We retrospectively analyzed 1050 non-donor IVF/ICSI-ET cycles performed from January, 2007 to December, 2015 in women at the age 40 years or above, including 393 women at 40 years of age, 266 at 41 years, 158 at 42 years, 107 at 43 years, 64 at 44 years, and 65 at 45-51 years. The clinical characteristics and outcomes of the women in different age groups were compared and analyzed...
December 20, 2016: Nan Fang Yi Ke da Xue Xue Bao, Journal of Southern Medical University
https://www.readbyqxmd.com/read/27984035/trends-in-gestational-age-at-time-of-surgical-abortion-for-fetal-aneuploidy-and-structural-abnormalities
#10
Anne R Davis, Sarah K Horvath, Paula M Castaño
BACKGROUND: Screening for fetal aneuploidy has evolved over the past two decades. Whether these advances impact gestational age at abortion has received little study. OBJECTIVE: To describe trends in the gestational age at the time of abortion by fetal diagnosis over an eleven-year study period. We hypothesized that gestational age at time of abortion would decrease for fetal aneuploidy but remain unchanged for structural abnormalities. STUDY DESIGN: We conducted a retrospective case series of all women undergoing surgical abortion for fetal aneuploidy or structural abnormalities up to 24 weeks gestation from 2004 through 2014 in a hospital operating room setting at a single, urban medical center...
October 27, 2016: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/27910733/a-comparative-morphologic-and-morphometric-study-about-geniculate-ganglion-development-in-man-and-in-rat
#11
Ana Sánchez-Del-Rey, José Maria Sánchez-Fernández, Arantza Ibargutxi, Agustin Martinez-Ibargüen, Francisco Santaolalla
CONCLUSIONS: Human-rat geniculate ganglion (GG) have multiple origins: (1) An initial proximity (20 μm) to the endocranial foramen of the IAM, suggests neural crest induction; and (2) The influence of epibranchial placodes: the tensor tympani muscle (TTM) and the otic apical coil. OBJECTIVES: This study was undertaken to determine the comparative development of human-rat GG. MATERIALS AND METHODS: A light microscopic study of the GG in human material obtained from spontaneous abortions at 9, 13, 14, 17, 18, and 30 weeks, and one neonate was done...
December 2, 2016: Acta Oto-laryngologica
https://www.readbyqxmd.com/read/27891124/a-novel-cell-type-enables-b-subtilis-to-escape-from-unsuccessful-sporulation-in-minimal-medium
#12
Hervé Joël Defeu Soufo
Sporulation is the most enduring survival strategy developed by several bacterial species. However, spore development of the model organism Bacillus subtilis has mainly been studied by means of media or conditions optimized for the induction of sporogenesis. Here, I show that during prolonged growth during stationary phase in minimal medium, B. subtilis undergoes an asymmetric cell division that produces small and round-shaped, DNA containing cells. In contrast to wild-type cells, mutants harboring spo0A or spoIIIE/sftA double mutations neither sporulate nor produce this special cell type, providing evidence that the small round cells emerge from the abortion of endospore formation...
2016: Frontiers in Microbiology
https://www.readbyqxmd.com/read/27876900/the-common-zoonotic-protozoal-diseases-causing-abortion
#13
REVIEW
Raafat Mohamed Shaapan
Toxoplasmosis, neosporosis, sarcosporidiosis (sarcocystosis) and trypanosomiasis are the common zoonotic protozoal diseases causing abortion which caused by single-celled protozoan parasites; Toxoplasma gondii, Neospora caninum, Sarcocystis spp and Trypanosoma evansi, respectively. Toxoplasmosis is generally considered the most important disease that causing abortion of both pregnant women and different female animals throughout the world, about third of human being population had antibodies against T. gondii...
December 2016: Journal of Parasitic Diseases: Official Organ of the Indian Society for Parasitology
https://www.readbyqxmd.com/read/27871191/second-trimester-medical-abortion-with-mifepristone-followed-by-unlimited-dosing-of-buccal-misoprostol-in-armenia
#14
Karmen S Louie, Erica Chong, Tamar Tsereteli, Gayane Avagyan, Ruzanna Abrahamyan, Beverly Winikoff
OBJECTIVES: The aim of the study was to assess the efficacy and acceptability of a regimen using mifepristone and buccal misoprostol with unlimited dosing for second trimester abortion in Armenia. METHODS: Women seeking to terminate 13-22 week pregnancies were enrolled in the study. Participants swallowed 200 mg mifepristone in the clinic and were instructed to return to the hospital for induction 24-48 h later. During induction, women were given 400 μg buccal misoprostol every 3 h until the fetus and placenta were expelled...
November 21, 2016: European Journal of Contraception & Reproductive Health Care
https://www.readbyqxmd.com/read/27859042/hla-g-promotes-myeloid-derived-suppressor-cell-accumulation-and-suppressive-activity-during-human-pregnancy-through-engagement-of-the-receptor-ilt4
#15
Natascha Köstlin, Anna-Lena Ostermeir, Bärbel Spring, Julian Schwarz, Alexander Marmé, Christina B Walter, Christian F Poets, Christian Gille
Establishing and maintaining maternal-fetal tolerance is essential for a successful pregnancy; failure of immunological adaptation to pregnancy leads to severe complications such as abortion or preterm delivery. Myeloid-derived suppressor cells (MDSCs) are innate immune cells that suppress T-cell responses, expand during pregnancy and thus may play a role in tolerance induction. Human leucocyte antigen G (HLA-G) is a major histocompatibility complex (MHC) I molecule with immune-modulatory properties, which is expressed during pregnancy...
November 10, 2016: European Journal of Immunology
https://www.readbyqxmd.com/read/27832863/endothelial-progenitor-cells-from-human-fetal-aorta-cure-diabetic-foot-in-a-rat-model
#16
Wan-Ni Zhao, Shi-Qing Xu, Jian-Feng Liang, Liang Peng, Hong-Lin Liu, Zai Wang, Qing Fang, Meng Wang, Wei-Qin Yin, Wen-Jian Zhang, Jin-Ning Lou
OBJECTIVE: Recent evidence has suggested that circulating endothelial progenitor cells (EPCs) can repair the arterial endothelium during vascular injury. However, a reliable source of human EPCs is needed for therapeutic applications. In this study, we isolated human fetal aorta (HFA)-derived EPCs and analyzed the capacity of EPCs to differentiate into endothelial cells. In addition, because microvascular dysfunction is considered to be the major cause of diabetic foot (DF), we investigated whether transplantation of HFA-derived EPCs could treat DF in a rat model...
December 2016: Metabolism: Clinical and Experimental
https://www.readbyqxmd.com/read/27804310/efficacy-of-concurrent-administration-of-mifepristone-and-misoprostol-for-termination-of-pregnancy
#17
RANDOMIZED CONTROLLED TRIAL
Manju Lata Verma, Uma Singh, Nisha Singh, Pushpa Lata Sankhwar, Sabuhi Qureshi
In this prospective randomized parallel group study, subjects with a pregnancy of less than 63 d were randomized to receive either (i) 200 mg oral mifepristone plus 400 μg misoprostol per vaginally concurrently (group A); (ii) or the administration of misoprostol after 48 h (group B). Transvaginal sonography was performed on the 14th day of misoprostol administration to confirm complete abortion. The primary outcome was to compare the rates of complete abortion in two groups. Secondary outcomes were to compare induction abortion interval, side effects and compliance...
April 2017: Human Fertility: Journal of the British Fertility Society
https://www.readbyqxmd.com/read/27738657/gnrh-agonist-trigger-versus-hcg-trigger-in-gnrh-antagonist-in-ivf-icsi-cycles-a-review-article
#18
REVIEW
Ashraf Alyasin, Shayesteh Mehdinejadiani, Marzieh Ghasemi
Routinely, a bolus of 5.000-10.000 IU human chorionic gonadotropin (hCG) is used for the final follicular maturation and ovulation as a standard method. HCG has the same effect of luteinizing hormone (LH) with long half-life. It has the long lutheotrophic effect which increases the risk of ovarian hyper stimulation syndrome (OHSS). Recently, gonadotropin-releasing hormone agonist (GnRH-a) trigger has been used for the induction of final follicular maturation and ovulation with the aim of reducing the OHSS risk...
September 2016: International Journal of Reproductive Biomedicine (Yazd, Iran)
https://www.readbyqxmd.com/read/27716397/a20-suppresses-canonical-smad-dependent-fibroblast-activation-novel-function-for-an-endogenous-inflammatory-modulator
#19
Swati Bhattacharyya, Wenxia Wang, Lauren Van Duyn Graham, John Varga
BACKGROUND: The ubiquitin-editing cytosolic enzyme A20, the major negative regulator of toll-like receptor (TLR)-mediated cellular inflammatory responses, has tight genetic linkage with systemic sclerosis (SSc). Because recent studies implicate endogenous ligand-driven TLR signaling in SSc pathogenesis, we sought to investigate the regulation, role and mechanism of action of A20 in skin fibroblasts. METHOD: A20 expression and the effects of forced A20 expression or siRNA-mediated A20 knockdown on fibrotic responses induced by transforming growth factor-ß (TGF-ß) were evaluated was evaluated in explanted human skin fibroblasts...
October 3, 2016: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/27707650/dendritic-cells-tip-the-balance-towards-induction-of-regulatory-t-cells-upon-priming-in-experimental-autoimmune-encephalomyelitis
#20
Magdalena Paterka, Jan Oliver Voss, Johannes Werr, Eva Reuter, Sophia Franck, Tina Leuenberger, Josephine Herz, Helena Radbruch, Tobias Bopp, Volker Siffrin, Frauke Zipp
Counter-balancing regulatory mechanisms, such as the induction of regulatory T cells (Treg), limit the effects of autoimmune attack in neuroinflammation. However, the role of dendritic cells (DCs) as the most powerful antigen-presenting cells, which are intriguing therapeutic targets in this context, is not fully understood. Here, we demonstrate that conditional ablation of DCs during the priming phase of myelin-specific T cells in experimental autoimmune encephalomyelitis (EAE) selectively aborts inducible Treg (iTreg) induction, whereas generation of T helper (Th)1/17 cells is unaltered...
January 2017: Journal of Autoimmunity
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