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retained placenta

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https://www.readbyqxmd.com/read/29211918/decellularized-human-placenta-supports-hepatic-tissue-and-allows-rescue-in-acute-liver-failure
#1
Zurab Kakabadze, Anne Kakabadze, David Chakhunashvili, Lika Karalashvili, Ekaterine Berishvili, Yogeshwar Sharma, Sanjeev Gupta
Tissue engineering with scaffolds to form transplantable organs is of wide interest. Decellularized tissues have been tested for this purpose, although supplies of healthy donor tissues, vascular recellularization for perfusion and tissue homeostasis in engineered organs pose challenges. We hypothesized decellularized human placenta will be suitable for tissue engineering. The universal availability and unique structures of placenta for accommodating tissue, including presence of embedded vessels, were major attractions...
December 6, 2017: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
https://www.readbyqxmd.com/read/29197351/maternal-characteristics-and-birth-outcomes-resulting-from-births-before-arrival-at-health-facilities-in-nkangala-district-south-africa-a-case-control-study
#2
Sikhulile Khupakonke, Andy Beke, Donald H A Amoko
BACKGROUND: Risks of severe, avoidable maternal and neonatal complications at birth are increased if the birth occurs before arrival at the health facility and in the absence of skilled birth attendants. Birth Before Arrival (BBA) is a preventable phenomenon still common in modern-day practice despite extensive improvements made in obstetric care and in accessibility to healthcare in South Africa. This study aimed to determine the risk factors and outcomes in mothers and babies associated with being born before arrival at hospitals...
December 2, 2017: BMC Pregnancy and Childbirth
https://www.readbyqxmd.com/read/29196998/isolation-and-characterization-of-extracellular-vesicles-from-ex-vivo-cultured-human-placental-explants
#3
Mancy Tong, Lawrence W Chamley
Ex vivo culture of human placental explants has long allowed placentologists to study the milieu of soluble factors secreted by the human placenta throughout gestation while retaining the correct three-dimensional structure of the placental villi. Here, we detail the placental explant culture method employed in our laboratory to collect extracellular vesicles which are known to be released by the human placenta throughout pregnancy from 6 weeks of gestation. Using this method, at least three different populations of placental extracellular vesicles can be simultaneously collected from each placental sample, allowing for comparative analysis of the cargos and downstream effects of the different types of extracellular vesicles produced by the human placenta...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29178045/considering-choline-as-methionine-precursor-lipoproteins-transporter-hepatic-promoter-and-antioxidant-agent-in-dairy-cows
#4
REVIEW
Imtiaz Hussain Raja Abbasi, Farzana Abbasi, Rab N Soomro, Mohamed E Abd El-Hack, Mervat A Abdel-Latif, Wen Li, Ren Hao, Feifei Sun, Bello M Bodinga, Khawar Hayat, Junhu Yao, Yangchun Cao
During the transition period, fatty liver syndrome may be caused in cows undergo negative energy balance, ketosis or hypocalcemia, retained placenta or mastitis problems. During the transition stage, movement of non-esterified fatty acids (NEFA) increases into blood which declines the hepatic metabolism or reproduction and consequently, lactation performance of dairy cows deteriorates. Most of studies documented that, choline is an essential nutrient which plays a key role to decrease fatty liver, NEFA proportion, improve synthesis of phosphatidylcholine, maintain lactation or physiological function and work as anti-oxidant in the transition period of dairy cows...
November 25, 2017: AMB Express
https://www.readbyqxmd.com/read/29177761/chromatin-remodelling-proteins-and-cell-fate-decisions-in-mammalian-preimplantation-development
#5
Anzy Miller, Brian Hendrich
The very first cell divisions in mammalian embryogenesis produce a ball of cells, each with the potential to form any cell in the developing embryo or placenta. At some point, the embryo produces enough cells that some are located on the outside of the embryo, while others are completely surrounded by other cells. It is at this point that cells undergo the very first lineage commitment event: outer cells form the trophectoderm and lose the potential to form embryonic lineages, while inner cells form the Inner Cell Mass, which retain embryonic potential...
2018: Advances in Anatomy, Embryology, and Cell Biology
https://www.readbyqxmd.com/read/29169226/cytological-endometritis-in-dairy-cows-diagnostic-threshold-risk-factors-and-impact-on-reproductive-performance
#6
Soo Chan Lee, Jae Kwan Jeong, In Soo Choi, Hyun Gu Kang, Young Hun Jung, Soo Bong Park, Ill Hwa Kim
We determined the threshold proportion of polymorphonuclear leukocytes (PMNs) for the diagnosis of cytological endometritis (CEM), the risk factors for this condition, and its impact on reproductive performance in dairy cows. Uterine cytology was performed on 407 Holstein cows 4 weeks postpartum to determine the proportions of endometrial cells and PMNs. A receiver operator characteristics curve was used to determine the threshold above which the PMN proportion affected the likelihood of cows conceiving by 200 days postpartum...
November 23, 2017: Journal of Veterinary Science
https://www.readbyqxmd.com/read/29118259/matrix-binding-checkpoint-immunotherapies-enhance-antitumor-efficacy-and-reduce-adverse-events
#7
Jun Ishihara, Kazuto Fukunaga, Ako Ishihara, Hans M Larsson, Lambert Potin, Peyman Hosseinchi, Gabriele Galliverti, Melody A Swartz, Jeffrey A Hubbell
Immune checkpoint blockade exhibits considerable antitumor activity, but previous studies have reported instances of severe treatment-related adverse events. We sought to explore local immune checkpoint blockade, with an antibody (Ab) form that would be retained intra- or peritumorally, limiting systemic exposure. To accomplish this, we conjugated the checkpoint blockade Abs to an extracellular matrix (ECM)-super-affinity peptide derived from placenta growth factor-2 (PlGF-2123-144). We show enhanced tissue retention and lower Ab concentrations in blood plasma after PlGF-2123-144 conjugation, reducing systemic side effects such as the risk of autoimmune diabetes...
November 8, 2017: Science Translational Medicine
https://www.readbyqxmd.com/read/29103725/association-of-immediate-postpartum-plasma-calcium-concentration-with-early-lactation-clinical-diseases-culling-reproduction-and-milk-production-in-holstein-cows
#8
R C Neves, B M Leno, M D Curler, M J Thomas, T R Overton, J A A McArt
The objective of this study was to evaluate the association of postpartum plasma Ca concentration with early-lactation disease outcomes, culling within 60 d in milk, pregnancy to first service, and milk production. A total of 1,453 cows from 5 commercial dairy farms in New York State were enrolled in a prospective cohort study from February to November 2015. Blood samples were collected within 12 h of parturition, and plasma was submitted to a diagnostic laboratory for total Ca measurement. Early-lactation disease, reproductive performance, and milk production from Dairy Herd Improvement Association (DHIA) test-day data were compiled from each farm's management software...
November 2, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/29101608/failed-manual-removal-of-the-placenta-after-vaginal-delivery
#9
Johanna Bjurström, Sally Collins, Jens Langhoff-Roos, Karin Sundberg, Annemette Jørgensen, Johannes J Duvekot, Lene Groenbeck
PURPOSE: A retained placenta after vaginal delivery where manual removal of placenta fails is a clinical challenge. We present six cases that illustrate the heterogeneity of the condition and discuss the etiology and terminology as well as the clinical management. METHODS: Members of the European Working group on Abnormally Invasive Placenta (EW-AIP) were invited to report all recent cases of retained placenta that were not antenatally suspected to be abnormally adherent or invasive, but could not be removed manually despite several attempts...
November 3, 2017: Archives of Gynecology and Obstetrics
https://www.readbyqxmd.com/read/29065743/a-maternal-death-from-self-induced-medical-abortion-a-call-for-action
#10
Nino Berdzuli, Ekaterine Pestvenidze, Nino Lomia, Babill Stray-Pedersen
OBJECTIVES: In Georgia, which has a longstanding, liberalised abortion law, the abortion procedure is generally safe if it is performed in a medical facility. However, when socioeconomic barriers prevent women from seeking safe abortion services, some risk their life by self-terminating an unintended pregnancy. We present a case of maternal mortality after a self-induced medical abortion, with the aim to investigate the underlying non-clinical causes of maternal death and the relevant policy implications...
October 25, 2017: European Journal of Contraception & Reproductive Health Care
https://www.readbyqxmd.com/read/29055534/association-of-rumination-time-and-health-status-with-milk-yield-and-composition-in-early-lactation-dairy-cows
#11
E I Kaufman, V H Asselstine, S J LeBlanc, T F Duffield, T J DeVries
The objective of this study was to determine the associations of rumination time (RT) and health status with milk yield and milk composition. This study used 339 dairy cows from 4 commercial dairy farms in Ontario, Canada (first lactation, n = 107; second lactation, n = 112; ≥third lactation, n = 120). Rumination time was monitored (24 h/d) using an automated system from 1 to 28 d in milk (DIM). Cows were milked 3×/d on each farm, and 2 farms recorded milk weights at each milking to determine daily milk yield (n = 170)...
October 18, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/29042604/placenta-specific1-plac1-is-a-potential-target-for-antibody-drug-conjugate-based-prostate-cancer-immunotherapy
#12
Mohammad-Reza Nejadmoghaddam, Amir-Hassan Zarnani, Ramin Ghahremanzadeh, Roya Ghods, Jafar Mahmoudian, Maryam Yousefi, Mahboobeh Nazari, Mohammad Hossein Ghahremani, Maryam Abolhasani, Ali Anissian, Morteza Mahmoudi, Rassoul Dinarvand
Our recent findings strongly support the idea of PLAC1 being as a potential immunotherapeutic target in prostate cancer (PCa). Here, we have generated and evaluated an anti-placenta-specific1 (PLAC1)-based antibody drug conjugate (ADC) for targeted immunotherapy of PCa. Prostate cancer cells express considerable levels of PLAC1. The Anti-PLAC1 clone, 2H12C12, showed high reactivity with recombinant PLAC1 and selectivity recognized PLAC1 in prostate cancer cells but not in LS180 cells, the negative control. PLAC1 binding induced rapid internalization of the antibody within a few minutes which reached to about 50% after 15 min and almost completed within an hour...
October 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29032783/targeted-metabolomics-new-insights-into-pathobiology-of-retained-placenta-in-dairy-cows-and-potential-risk-biomarkers
#13
E Dervishi, G Zhang, R Mandal, D S Wishart, B N Ametaj
A targeted quantitative metabolomics approach was used to study temporal changes of serum metabolites in cows that normally released their fetal membranes and those that retained the placenta. We identified and measured serum concentrations of 128 metabolites including amino acids, acylcarnitines, biogenic amines, glycerophospholipids, sphingolipids and hexose at -8 and -4 weeks before parturition, during the week of retained placenta (RP) diagnosis, and at +4 and +8 weeks after parturition. In addition, we aimed at identifying metabolite signatures of pre-RP in the serum that might be used as predictive biomarkers for risk of developing RP in dairy cows...
October 16, 2017: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/28987571/field-trial-of-2-calcium-supplements-on-early-lactation-health-and-production-in-multiparous-holstein-cows
#14
Antonia R Domino, Helen C Korzec, Jessica A A McArt
Our objectives were to measure serum Ca concentrations in the first 48 h postpartum in cows supplemented with oral Ca or subcutaneous Ca and nonsupplemented cows and evaluate the effect of these treatments on the incidence of metritis, displaced abomasum, mastitis, and early lactation disease (any of the diseases milk fever, retained placenta, metritis, or displaced abomasum), removal from the herd, pregnancy to first insemination, and average daily milk yield for the first 10 wk of lactation. We conducted 2 experiments on 1 commercial herd in New York State...
October 4, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28982025/pregnancy-associated-glycoproteins-in-cows-with-retained-fetal-membranes
#15
Reyhaneh Hooshmandabbasi, Holm Zerbe, Stefan Bauersachs, Noelita M de Sousa, Alois Boos, Karl Klisch
In cows, retained fetal membranes (RFM) are a major problem in reproduction. The timely detachment of fetal membranes after parturition requires well coordinated maturation processes in the placenta. One feature of placental maturation in cows is a prepartal decline in the number of binucleate trophoblast giant cells (BNC) in the fetal chorion. Pregnancy associated glycoproteins (PAGs) are a group of proteins, produced by trophoblast cells in artiodactyls. We studied aspects of PAG expression in cows with and without RFM...
January 1, 2018: Theriogenology
https://www.readbyqxmd.com/read/28980065/conservative-endovascular-management-of-retained-placenta-accreta-with-marked-vascularity-after-abortion-or-delivery
#16
Akihiro Takeda, Wataru Koike
OBJECTIVE: To report our experience on the value of transcatheter arterial embolization (TAE) or transcatheter arterial chemoembolization (TACE) for the uterus-preserving management of retained placenta accreta with marked vascularity after abortion or delivery. STUDY DESIGN: Thirty-eight consecutive women with retained placenta accreta were retrospectively analyzed over a 5-year period. When elevated levels of serum β-hCG (> 25 mIU/mL) were detected, TACE with dactinomycin was chosen for devascularization along with cytotoxic effects on active trophoblasts; in contrast, if the serum β-hCG level was low (≤ 25 mIU/mL), TAE was chosen...
December 2017: Archives of Gynecology and Obstetrics
https://www.readbyqxmd.com/read/28952961/eating-and-rumination-activities-two-weeks-prepartum-to-one-month-postpartum-in-100-healthy-cows-and-cows-with-peripartum-diseases
#17
U Braun, H Buchli, M Hässig
Eating and rumination activities were investigated in 100 cows from 14 days prepartum to 30 days postpartum. All cows were clinically healthy at the start of the study. A pressure sensor incorporated into the noseband of a halter was used to record jaw movements, which allowed the quantification of the daily duration of eating and rumination, number of regurgitated cuds and number of chewing cycles per cud. The cows were retrospectively divided into 2 main groups healthy (n = 24) and ill cows (n = 76), and the latter were further divided into the following subgroups: cows with periparturient paresis (n = 12), retained placenta (n = 13), metritis (n = 17), primary ketosis (n = 19) and lameness (n = 6)...
October 2017: Schweizer Archiv Für Tierheilkunde
https://www.readbyqxmd.com/read/28941821/effect-of-group-size-and-health-status-on-behavior-and-feed-intake-of-multiparous-dairy-cows-in-early-lactation
#18
Margit Bak Jensen, Kathryn L Proudfoot
Dairy cows in early lactation are often housed in a large group, where they may have to compete for access to feed and space. However, a cow's ability to compete may be impaired due to production disease, and housing in a small group with minimal competition may be beneficial for cow welfare. The aim of this study was to investigate the effect of group size and health on social and feeding behavior of cows during the first 3 d after introduction to a new group. Data included 54 multiparous Holstein-Friesian cows that were moved from an individual maternity pen and individually joined an existing group pen for 6 (N6) or 24 cows (N24) on d 4 after calving...
September 20, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28939480/hysteroscopic-removal-of-retained-products-of-conception-implanted-over-a-focal-area-of-adenomyosis-a-case-report
#19
Luis Alonso, Laura Nieto, Jose Carugno
STUDY OBJECTIVE: To describe a technique for hysteroscopic removal of retained products of conception (RPOC) implanted over an area of adenomyosis. DESIGN: A case report (Canadian Task Force classification III). SETTING: RPOC is an unfortunate complication that may occur after the resolution of a normal pregnancy; it is more common after early pregnancy termination or spontaneous miscarriage [1]. Immediate consequences of RPOC include persistent vaginal bleeding, abdominal pain, pelvic infection, fever, and dilated cervix...
September 20, 2017: Journal of Minimally Invasive Gynecology
https://www.readbyqxmd.com/read/28928192/a-pragmatic-group-sequential-placebo-controlled-randomised-trial-to-determine-the-effectiveness-of-glyceryl-trinitrate-for-retained-placenta-got-it-a-study-protocol
#20
Fiona C Denison, John Norrie, Julia Lawton, Jane E Norman, Graham Scotland, Gladys C McPherson, Alison McDonald, Mark Forrest, Jemma Hudson, Jane Brewin, Mathilde Peace, Cynthia Clarkson, Sheonagh Brook-Smith, Susan Morrow, Nina Hallowell, Laura Hodges, Kathryn F Carruthers
INTRODUCTION: A retained placenta is diagnosed when the placenta is not delivered following delivery of the baby. It is a major cause of postpartum haemorrhage and treated by the operative procedure of manual removal of placenta (MROP). METHODS AND ANALYSIS: The aim of this pragmatic, randomised, placebo-controlled, double-blind UK-wide trial, with an internal pilot and nested qualitative research to adjust strategies to refine delivery of the main trial, is to determine whether sublingual glyceryl trinitrate (GTN) is (or is not) clinically and cost-effective for (medical) management of retained placenta...
September 18, 2017: BMJ Open
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