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https://www.readbyqxmd.com/read/30335256/-asherman-s-syndrome-management-after-curettage-following-a-postnatal-placental-retention-and-literature-review
#1
REVIEW
Nguefack C Tchente, G Brichant, M Nisolle
Asherman's syndrome (AS) is a partial or complete obliteration of the uterine cavity after intrauterine trauma. Approximately 90 % of severe AS cases occur after abortion curettage or postpartum curettage. Clinical signs and symptoms are abnormalities of the cycle (hypomenorrhoea or amenorrhoea) and fertility disorders. We have reviewed the recent literature on AS following the description of a typical clinical case. The management of AS is not easy. It must be done by experienced surgeons. Realization of several surgeries is sometimes mandatory, with the use of anti-adhesive devices between interventions...
October 2018: Revue Médicale de Liège
https://www.readbyqxmd.com/read/30334708/african-histoplasmosis-in-hiv-negative-patients-kimpese-democratic-republic-of-the-congo
#2
Nestor Pakasa, Asaf Biber, Samuel Nsiangana, Désiré Imposo, Ernest Sumaili, Hypolite Muhindo, Maria J Buitrago, Iris Barshack, Eli Schwartz
We describe a case series of histoplasmosis caused by Histoplasma capsulatum var. duboisii during July 2011-January 2014 in Kimpese, Democratic Republic of the Congo. Cases were confirmed by histopathology, immunohistochemistry, and reverse transcription PCR. All patients were HIV negative. Putative sources for the pathogen were cellar bats and guano fertilizer exploitation.
November 2018: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/30334402/enzyme-linked-receptor-protein-signaling-pathway-is-one-of-the-ontology-groups-that-are-highly-up-regulated-in-porcine-oocytes-before-in-vitro-maturation
#3
S Borys, M Brązert, M Jankowski, I Kocherova, K Ożegowska, P Celichowski, M J Nawrocki, W Kranc, A Bryja, M Kulus, M Jeseta, W Pieńkowski, A Bręborowicz, D Bukowska, P Antosik, L Pawelczyk, M T Skowroński, K P Brüssow, M Bruska, M Zabel, M Nowicki, B Kempisty
Before being able to fully participate in the processes associated with its function as a female gamete, the oocyte needs to undergo a range of changes to achieve its mature form. These morphological, biochemical and metabolomic processes are induced by the somatic tissues surrounding the oocyte, through the expression of specific transcription and growth factors. The maturation of the oocyte is highly important for the proceedings that lead to successful fertilization, early embryonic development and implantation...
September 2018: Journal of Biological Regulators and Homeostatic Agents
https://www.readbyqxmd.com/read/30334292/variation-in-the-actual-preferences-for-ai-bull-traits-among-finnish-dairy-herds
#4
Elina Paakala, Daniel Martín-Collado, Asko Mäki-Tanila, Jarmo Juga
Changing production circumstances, a wide range of traits and the international bull market enable dairy farmers to make increasingly specific choices concerning artificial insemination (AI) bulls. Finland is part of the joint Nordic dairy cattle breeding programme where in addition to yield, high emphasis is given to health, fertility, conformation and longevity. The aims of our study were (a) to investigate whether Finnish dairy farmers differ in their selection preferences for AI bull traits and can be clustered into herd groups, (b) to determine whether AI bull selection in different herd groups is in line with the Nordic Total Merit index (NTM) and (c) to analyse how the herd groups are related to herd characteristics...
October 17, 2018: Journal of Animal Breeding and Genetics, Zeitschrift Für Tierzüchtung und Züchtungsbiologie
https://www.readbyqxmd.com/read/30334273/cryodamage-of-plasma-membrane-and-acrosome-region-in-chicken-sperm
#5
Lucia Olexikova, Marsia Miranda, Barbora Kulikova, Andrej Baláži, Peter Chrenek
Sperm plasma membrane is an essential structure of sperm resistance to freezing. Signs of cryodamage can be visible on the sperm plasma membrane. The aim of our study was to evaluate the appearance of plasma membrane and acrosome in fresh and frozen-thawed chicken sperm using electron and fluorescence microscopy. Semen was collected from 12 sexually mature roosters of Ross PM3 heavy line, diluted with Kobidil+ extender with 16% of ethylene glycol (KEG; control) or with KEG in combination with one of following non-permeating cryoprotectants: trehalose (KEG-TRE) or glycine (KEG-GLY)...
October 17, 2018: Anatomia, Histologia, Embryologia
https://www.readbyqxmd.com/read/30334259/queenless-honey-bees-build-infrastructure-for-direct-reproduction-until-their-new-queen-proves-her-worth
#6
Michael L Smith
The terminal investment hypothesis predicts that individuals will alter their reproductive investments based on reproductive prospects. This hypothesis, however, has never been tested at the colony-level, where reproductive prospects for thousands of individuals can change instantly with the death of a single individual: the queen. A honey bee queen's death also changes the reproductive mechanism; if the queen is not replaced, then workers reproduce directly, by producing males in reproductive comb - drone comb - before the colony dies...
October 17, 2018: Evolution; International Journal of Organic Evolution
https://www.readbyqxmd.com/read/30334131/decision-making-surrounding-the-use-of-preimplantation-genetic-testing-for-aneuploidy-reveals-misunderstanding-regarding-its-benefit
#7
Molly M Quinn, Flor Juarez-Hernandez, Molly Dunn, Richard Jason Okamura, Marcelle I Cedars, Mitchell P Rosen
PURPOSE: We aimed to explore how patients make decisions regarding use of preimplantation genetic testing for aneuploidy (PGT-A) for in vitro fertilization (IVF). METHODS: This is a cross-sectional survey at an academic medical center. Three hundred subjects initiating an IVF cycle over 8 weeks were asked to complete a validated survey to determine how they decided whether or not to pursue PGT-A. All patients were previously counseled that the primary goal of PGT-A is to maximize pregnancy rates per embryo transfer...
October 18, 2018: Journal of Assisted Reproduction and Genetics
https://www.readbyqxmd.com/read/30333847/effects-of-plastic-mulching-and-basal-nitrogen-application-depth-on-nitrogen-use-efficiency-and-yield-in-maize
#8
Xiukang Wang, Ning Wang, Yingying Xing, Jia Yun, Huihui Zhang
The demand for increased grain production to support population and consumption growth has led to increased interest in field management approaches that incorporate plastic mulching and fertilization management. The purpose of this study was to investigate the effects of plastic mulching and basal nitrogen (N)-fertilizer application depth on N balance estimations, N use efficiency (NUE) and maize yield. The experiment was conducted in 2014 and 2015 with six treatments: no N fertilizer and no mulching (CK), traditional broadcast N fertilizer with mulching (T0), basal N-fertilizer application at a depth of 6 cm with no mulching (T1), basal N-fertilizer application at a depth of 6 cm with plastic mulching (T2), basal N-fertilizer application at a depth of 12 cm with no mulching (T3) and basal N-fertilizer application at a depth of 12 cm with plastic mulching (T4)...
2018: Frontiers in Plant Science
https://www.readbyqxmd.com/read/30333378/effect-of-post-artificial-insemination-treatment-with-two-different-progesterone-intravaginal-devices-on-conception-and-synchronization-of-the-returning-estrus-in-japanese-black-cows
#9
Naoki Yamamoto, Ryo Nishimura, Yosuke Gunji, Makoto Saneshige, Kensuke Kiriki, Mitsugu Hishinuma
The objective of this study was to evaluate the effects of post artificial insemination (AI) treatment with intravaginal progesterone device (P4 device) on conception rate, synchronization of returning estrus and plasma P4 concentration in Japanese Black cows. Nineteen cows were treated with DIB (1.0 g P4) from Day 12 to 19 (Day 0=day of the first AI), 27 cows were treated with a CIDR (1.9 g P4) from Day 12 to 19, and 33 cows were not treated after the first AI (control). Estrous behavior was daily examined between Day 20 and 25, and cows returning to estrus were inseminated (the second AI)...
October 18, 2018: Journal of Veterinary Medical Science
https://www.readbyqxmd.com/read/30333187/ribonuclease-activity-of-marf1-controls-oocyte-rna-homeostasis-and-genome-integrity-in-mice
#10
Qingqing Yao, Guangyi Cao, Mingzhe Li, Baixing Wu, Xiaoyun Zhang, Teng Zhang, Jing Guo, Hong Yin, Lanying Shi, Jiayi Chen, Xiang Yu, Lina Zheng, Jinbiao Ma, You-Qiang Su
Producing normal eggs for fertilization and species propagation requires completion of meiosis and protection of the genome from the ravages of retrotransposons. Mutation of Marf1 (meiosis regulator and mRNA stability factor 1) results in defects in both these key processes in mouse oocytes and thus in infertility. MARF1 was predicted to have ribonuclease activity, but the structural basis for the function of MARF1 and the contribution of its putative ribonuclease domain to the mutant oocyte phenotype was unknown...
October 17, 2018: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/30333070/review-associations-among-goods-impacts-and-ecosystem-services-provided-by-livestock-farming
#11
B Dumont, J Ryschawy, M Duru, M Benoit, V Chatellier, L Delaby, C Donnars, P Dupraz, S Lemauviel-Lavenant, B Méda, D Vollet, R Sabatier
Livestock is a major driver in most rural landscapes and economics, but it also polarises debate over its environmental impacts, animal welfare and human health. Conversely, the various services that livestock farming systems provide to society are often overlooked and have rarely been quantified. The aim of analysing bundles of services is to chart the coexistence and interactions between the various services and impacts provided by livestock farming, and to identify sets of ecosystem services (ES) that appear together repeatedly across sites and through time...
October 18, 2018: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/30333056/oxidative-stress-in-sperm-affects-the-epigenetic-reprogramming-in-early-embryonic-development
#12
Sarah Wyck, Carolina Herrera, Cristina E Requena, Lilli Bittner, Petra Hajkova, Heinrich Bollwein, Raffaella Santoro
BACKGROUND: Reactive oxygen species (ROS)-induced oxidative stress is well known to play a major role in male infertility. Sperm are sensitive to ROS damaging effects because as male germ cells form mature sperm they progressively lose the ability to repair DNA damage. However, how oxidative DNA lesions in sperm affect early embryonic development remains elusive. RESULTS: Using cattle as model, we show that fertilization using sperm exposed to oxidative stress caused a major developmental arrest at the time of embryonic genome activation...
October 17, 2018: Epigenetics & Chromatin
https://www.readbyqxmd.com/read/30333054/confirm-trial-conversion-of-in-vitro-fertilization-cycles-to-intrauterine-inseminations-in-patients-with-a-poor-ovarian-response-to-stimulation-a-protocol-for-a-multicentric-prospective-randomized-trial
#13
Léa Delbos, Elsa Parot-Schinkel, Hady El Hachem, Guillaume Legendre, Philippe Descamps, Lisa Boucret, Véronique Ferré-L'Hotellier, Pauline Jeanneteau, Cécile Dreux, Catherine Morinière, Pascale May-Panloup, Pierre-Emmanuel Bouet
BACKGROUND: To date, there is no consensus on the ideal management strategy of patients with poor ovarian response (POR) to controlled ovarian stimulation (COS) for in vitro fertilization (IVF). Currently, these patients are given the choice of: (1) canceling the cycle; (2) proceeding with COS regardless of the poor response, and performing the oocyte retrieval and transfer of embryos when available; or (3) conversion to an intrauterine insemination (IUI). When the decision to proceed with the COS cycle is taken, it is not clear whether IVF or conversion to IUI is the best choice...
October 17, 2018: Trials
https://www.readbyqxmd.com/read/30332993/a-combined-small-rna-and-transcriptome-sequencing-analysis-reveal-regulatory-roles-of-mirnas-during-anther-development-of-upland-cotton-carrying-cytoplasmic-male-sterile-gossypium-harknessii-d2-cytoplasm
#14
Bingbing Zhang, Xuexian Zhang, Guoyuan Liu, Liping Guo, Tingxiang Qi, Meng Zhang, Xue Li, Hailin Wang, Huini Tang, Xiuqin Qiao, Wenfeng Pei, Kashif Shahzad, Chaozhu Xing, Jinfa Zhang, Jianyong Wu
BACKGROUND: Cytoplasmic male sterility (CMS) in flowering plants is usually caused by incompatibility between mitochondrial and nuclear genomes, and can be restored by nuclear genes known as restorer-of-fertility (Rf). Although the CMS/Rf system is useful and convenient for economic production of commercial hybrid seed, the molecular mechanisms of CMS occurrence and fertility restoration in cotton are unclear. RESULTS: Here, a combined small RNA and transcriptome sequencing analysis was performed on floral buds at the meiosis stage in three-line hybrid cotton system, and differentially expressed microRNAs (DEMs) and their target genes were identified and further analyzed for a possible involvement in CMS and fertility restoration...
October 17, 2018: BMC Plant Biology
https://www.readbyqxmd.com/read/30332983/genome-wide-identification-and-analysis-of-the-coi-gene-family-in-wheat-triticum-aestivum-l
#15
Jian-Fang Bai, Yu-Kun Wang, Peng Wang, Shao-Hua Yuan, Jian-Gang Gao, Wen-Jing Duan, Na Wang, Feng-Ting Zhang, Wen-Jie Zhang, Meng-Ying Qin, Chang-Ping Zhao, Li-Ping Zhang
BACKGROUND: COI (CORONATINE INSENSITIVE), an F-box component of the Skp1-Cullin-F-box protein (SCFCOI1 ) ubiquitin E3 ligase, plays important roles in the regulation of plant growth and development. Recent studies have shown that COIs are involved in pollen fertility. In this study, we identified and characterized COI genes in the wheat genome and analyzed expression patterns under abiotic stress. RESULTS: A total of 18 COI candidate sequences for 8 members of COI gene family were isolated in wheat (Triticum aestivum L...
October 17, 2018: BMC Genomics
https://www.readbyqxmd.com/read/30332465/novel-double-factor-pgt-strategy-analyzing-blastocyst-stage-embryos-in-a-single-ngs-procedure
#16
Javier Del Rey, Francisco Vidal, Lorena Ramírez, Nina Borràs, Irene Corrales, Iris Garcia, Olga Martinez-Pasarell, Silvia F Fernandez, Raquel Garcia-Cruz, Aïda Pujol, Alberto Plaja, Itziar Salaverria, Maria Oliver-Bonet, Jordi Benet, Joaquima Navarro
In families at risk from monogenic diseases affected offspring, it is fundamental the development of a suitable Double Factor Preimplantation Genetic Testing (DF-PGT) method for both single-gene analysis and chromosome complement screening. Aneuploidy is not only a major issue in advanced-maternal-age patients and balanced translocation carriers, but also the aneuploidy rate is extremely high in patients undergoing in vitro fertilization (IVF), even in young donors. To adequate NGS technology to the DF-PGT strategy four different whole genome amplification systems (Sureplex, MALBAC, and two multiple displacement amplification systems-MDA) were tested using TruSight One panel on cell lines and blastocyst trophectoderm biopsies-TE...
2018: PloS One
https://www.readbyqxmd.com/read/30332414/relative-patterns-of-sexual-activity-and-fertility-among-hiv-positive-and-negative-women-evidence-from-46-dhs
#17
Milly Marston, Basia Zaba, Jeffrey W Eaton
OBJECTIVES: Projections of fertility of HIV positive women as ART scales up are needed to plan prevention of mother-to-child transmission (PMTCT) services. We describe differences in exposure to pregnancy between HIV positive and HIV negative women by age, region and national ART coverage to evaluate the extent to which behavioural differences explain lower fertility among HIV positive women and assess whether exposure to pregnancy has changed with antiretroviral treatment (ART) scale-up...
2018: PloS One
https://www.readbyqxmd.com/read/30332409/combined-effects-of-elevated-temperature-and-deepwater-horizon-oil-exposure-on-the-cardiac-performance-of-larval-mahi-mahi-coryphaena-hippurus
#18
Prescilla Perrichon, Edward M Mager, Christina Pasparakis, John D Stieglitz, Daniel D Benetti, Martin Grosell, Warren W Burggren
The 2010 Deepwater Horizon oil spill coincided with the spawning season of many pelagic fish species in the Gulf of Mexico. Yet, few studies have investigated physiological responses of larval fish to interactions between anthropogenic crude oil exposure and natural factors (e.g. temperature, oxygen levels). Consequently, mahi mahi (Coryphaena hippurus) embryos were exposed for 24 hours to combinations of two temperatures (26 and 30°C) and six concentrations of oiled fractions of weathered oil (from 0 to 44...
2018: PloS One
https://www.readbyqxmd.com/read/30332320/a-novel-vertebrate-system-for-the-examination-and-direct-comparison-of-the-relative-biological-effectiveness-for-different-radiation-qualities-and-sources
#19
E R Szabó, Z Reisz, R Polanek, T Tőkés, Sz Czifrus, Cs Pesznyák, B Biró, A Fenyvesi, B Király, J Molnár, Sz Brunner, B Daroczi, Z Varga, K Hideghéty
PURPOSE: The recent rapid increase of hadron therapy applications requires the development of high performance, reliable in vivo models for preclinical research on the biological effects of high linear energy transfer (LET) particle radiation. AIM: The aim of this paper was to test the relative biological effectiveness (RBE) of the zebrafish embryo system at two neutron facilities. MATERIAL AND METHODS: Series of viable zebrafish embryos at 24-hour post-fertilization (hpf) were exposed to single fraction, whole-body, photon and neutron (reactor fission neutrons (<En = 1 MeV>) and (p (18 MeV)+Be, <En> = 3...
October 17, 2018: International Journal of Radiation Biology
https://www.readbyqxmd.com/read/30332301/negative-elongation-factor-is-essential-for-endometrial-function
#20
Sylvia C Hewitt, Rong Li, Nyssa Adams, Wipawee Winuthayanon, Katherine J Hamilton, Lauren J Donoghue, Sydney L Lierz, Marleny Garcia, John P Lydon, Francesco J DeMayo, Karen Adelman, Kenneth S Korach
Pausing of RNA polymerase II (Pol II) during early transcription, mediated by the negative elongation factor (NELF) complex, allows cells to coordinate and appropriately respond to signals by modulating the rate of transcriptional pause release. Promoter proximal enrichment of Pol II occurs at uterine genes relevant to reproductive biology; thus, we hypothesized that pausing might impact endometrial response by coordinating hormonal signals involved in establishing and maintaining pregnancy. We deleted the NELF-B subunit in the mouse uterus using PgrCre (NELF-B UtcKO)...
October 17, 2018: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
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