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Placentitis

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https://www.readbyqxmd.com/read/29151230/intentional-placental-removal-on-suspicious-placenta-accreta-spectrum-still-prohibited
#1
Shigeki Matsubara, Hironori Takahashi
INTRODUCTION: Intentional placental removal for abnormally invasive placenta (AIP) is fundamentally abandoned at planned surgery for it. Whether this holds true even after recent introduction of various hemostatic procedures is unclear. MATERIALS AND METHODS: We discussed on this issue based on our own experiences and also on the recent reports on various hemostatic procedures. RESULTS: Studies directly answering this question have been lacking...
November 18, 2017: Archives of Gynecology and Obstetrics
https://www.readbyqxmd.com/read/29150340/placental-transfer-and-levels-of-mercury-selenium-vitamin-e-and-docosahexaenoic-acid-in-maternal-and-umbilical-cord-blood
#2
Mineshi Sakamoto, Hing Man Chan, José L Domingo, Chihaya Koriyama, Katsuyuki Murata
Methylmercury (MeHg) is a neurotoxicant known to affect the developing fetal brain as a sensitive target organ. As most mercury (Hg) in blood is MeHg, total mercury (THg) levels in blood are used to estimate the body burden of MeHg. The nutrients selenium (Se), vitamin E, and docosahexaenoic acid (DHA) are protective against MeHg toxicity. We compared maternal and cord blood concentrations of biochemical substances, THg and Se, vitamin E, DHA, and other elements, fatty acids, and amino acids in 54 Japanese mother-newborn pairs to elucidate the fetal risk of MeHg toxicity...
November 14, 2017: Environment International
https://www.readbyqxmd.com/read/29150338/impacts-of-prenatal-triclosan-exposure-on-fetal-reproductive-hormones-and-its-potential-mechanism
#3
Caifeng Wang, Limei Chen, Shasha Zhao, Yi Hu, Yijun Zhou, Yu Gao, Weiye Wang, Jun Zhang, Ying Tian
BACKGROUND: Triclosan (TCS) has been widely detected in pregnant women. The reproductive endocrine-disrupting effects of TCS have been observed in humans and animals. Little is known about the potential impact of prenatal TCS exposure on fetal reproductive development as well as its potential mechanism. OBJECTIVES: We investigated the potential effect of prenatal TCS exposure on fetal reproductive hormones in cord blood and its potential mechanism in relation to placental steroidogenic enzymes...
November 14, 2017: Environment International
https://www.readbyqxmd.com/read/29149745/household-air-pollution-and-chronic-hypoxia-in-the-placenta-of-pregnant-nigerian-women-a-randomized-controlled-ethanol-cookstove-intervention
#4
Anindita Dutta, Galina Khramstova, Katherine Brito, Donee Alexander, Ariel Mueller, Sireesha Chinthala, Damilola Adu, Tope Ibigbami, John Olamijulo, Abayomi Odetunde, Kehinde Adigun, Liese Pruitt, Ian Hurley, Olufunmilayo Olopade, Oladosu Ojengbede, Sarosh Rana, Christopher O Olopade
BACKGROUND: Household air pollution (HAP) is associated with adverse pregnancy outcomes. OBJECTIVES: Investigate impact of in-utero HAP exposure on placental development and chronic hypoxia. METHODS: Markers of chronic placental hypoxia [Hofbauer cells (HBC), syncytial knots (SK), chorionic vascular density (cVD) and hypoxia-inducible factor (HIF)] were stained by hematoxylin-eosin and/or immunohistochemically in placenta samples collected from firewood-/kerosene-users (A,n=16), and ethanol-users (B,n=20) that participated in a randomized controlled intervention trial in Ibadan, Nigeria...
November 14, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29149067/the-hmgb1-rage-pro-inflammatory-axis-in-the-human-placenta-modulating-effect-of-low-molecular-weight-heparin
#5
Cristian Zenerino, Anna Maria Nuzzo, Domenica Giuffrida, Marilisa Biolcati, Alessandra Zicari, Tullia Todros, Alessandro Rolfo
We evaluated whether physiological and pre-eclamptic (PE) placentae, characterized by exacerbated inflammation, presented alterations in pro-inflammatory High Mobility Group Box 1 (HMGB1) and its Receptor of Advanced Glycation End products (RAGE) expression. Moreover, we investigated, in physiological placental tissue, the ability of Low Molecular Weight Heparin (LMWH) to modify HMGB1 structural conformation thus inhibiting RAGE binding and HMGB1/RAGE axis inflammatory activity. HMGB1, RAGE, IL-6 and TNFα (HMGB1/RAGE targets) mRNA expression were assessed by Real Time PCR...
November 17, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29147953/impact-of-perfluorochemicals-on-human-health-and-reproduction-a-male-s-perspective
#6
REVIEW
C Foresta, S Tescari, A Di Nisio
Perfluoroalkyl compounds (PFCs) are a class of organic molecules used in industry and consumer products. PFCs are non-biodegradable and bioaccumulate in the environment and for these reasons they have been a major subject of research regarding their toxicity, environmental fate, and sources of human exposure, since they have been shown to induce severe health consequences, such as neonatal mortality, neurotoxicity and immunotoxicity. The aim of this review is to explore the existing knowledge of the interplay between PFCs exposure and human health, with a focus on male reproductive health, given the emerging gender differences in PFCs clearance and their interaction with sex hormones receptors...
November 17, 2017: Journal of Endocrinological Investigation
https://www.readbyqxmd.com/read/29146013/-chronic-histiocytic-intervillositis-diagnosis-and-management
#7
A Mekinian, N Costedoat-Chalumeau, L Carbillon, A Coulomb-L'Hermine, V Le Guern, A Masseau, E Lazaro, J Cohen, M Bornes, G Kayem, O Fain
Chronic intervillositis is a rare condition, which is associated with severe obstetrical outcome and high recurrence rate. Obstetrical adverse events are intrauterine growth restriction, recurrent early miscarriages, intrauterine deaths and prematurity by placental insufficiency. The determination of the extension and the intensity of the chronic intervillositis are not currently standardized. High rates of recurrence have been described, but actually there is no reliable predictive biomarker. No treatment is currently validated, but the use of immunomodulatory drugs could be justified by the possible autoimmune or allo-immune origin...
November 13, 2017: La Revue de Médecine Interne
https://www.readbyqxmd.com/read/29146008/heat-and-pregnancy-related-emergencies-risk-of-placental-abruption-during-hot-weather
#8
Siyi He, Tom Kosatsky, Audrey Smargiassi, Marianne Bilodeau-Bertrand, Nathalie Auger
INTRODUCTION: Outdoor heat increases the risk of preterm birth and stillbirth, but the association with placental abruption has not been studied. Placental abruption is a medical emergency associated with major morbidity and mortality in pregnancy. We determined the relationship between ambient temperature and risk of placental abruption in warm seasons. MATERIAL AND METHODS: We performed a case-crossover analysis of 17,172 women whose pregnancies were complicated by placental abruption in Quebec, Canada from May to October 1989-2012...
November 13, 2017: Environment International
https://www.readbyqxmd.com/read/29145610/transition-to-an-aquatic-habitat-permitted-the-repeated-loss-of-the-pleiotropic-klk8-gene-in-mammals
#9
Nikolai Hecker, Virag Sharma, Michael Hiller
KLK8 (also called neuropsin) is a serine protease that plays distinct roles in the skin and hippocampus. In the skin, KLK8 influences keratinocyte proliferation and desquamation, and activates antimicrobial peptides in sweat. In the hippocampus, KLK8 affects memory acquisition. Here, we examined the evolution of KLK8 in mammals and discovered that, out of 70 placental mammals, KLK8 is exclusively lost in three independent fully-aquatic lineages, comprising dolphin, killer whale, minke whale and manatee. In addition, while the sperm whale has an intact KLK8 reading frame, the gene evolves neutrally in this species...
November 14, 2017: Genome Biology and Evolution
https://www.readbyqxmd.com/read/29145418/testosterone-is-protective-against-impaired-glucose-metabolism-in-male-intrauterine-growth-restricted-offspring
#10
Suttira Intapad, John Henry Dasinger, Joel M Fahling, Miles A Backstrom, Barbara T Alexander
Placental insufficiency alters the intrauterine environment leading to increased risk for chronic disease including impaired glucose metabolism in low birth weight infants. Using a rat model of low birth weight, we previously reported that placental insufficiency induces a significant increase in circulating testosterone in male intrauterine growth-restricted offspring (mIUGR) in early adulthood that is lost by 12 months of age. Numerous studies indicate testosterone has a positive effect on glucose metabolism in men...
2017: PloS One
https://www.readbyqxmd.com/read/29145319/primary-myelofibrosis-and-pregnancy-outcomes-after-low-molecular-weight-heparin-administration-a-case-report-and-literature-review
#11
Roxana Elena Bohîlţea, Monica Mihaela Cîrstoiu, Crîngu Antoniu Ionescu, Emilia Niculescu-Mizil, Ana Maria Vlădăreanu, Irina Voican, Mihai Dimitriu, Natalia Turcan
RATIONALE: Primary myelofibrosis is encountered with the myeloproliferative diseases and is the least prevalent among women of childbearing age. The prognosis is guided by pancytopenia, leukemic transformation and thrombosis which are the dominant complications. PATIENT CONCERNS: Data regarding protocol management during pregnancy in the context of myelofibrosis are insufficient. Fewer than ten cases have been described until now and half of this cases have resulted in fetal death due to placental infarction during the second and third trimesters...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29145299/prophylactic-temporary-abdominal-aorta-balloon-occlusion-in-women-with-placenta-previa-accretism-during-late-gestation
#12
Zhongyuan Qiu, Jifen Hu, Jianbo Wu, Lihong Chen
BACKGROUND: To evaluate the clinical efficacy of prophylactic temporary balloon occlusion of the abdominal aorta in patients with placenta previa accretism during cesarean section. METHODS: Twenty-three consecutive patients, prenatally confirmed with placenta previa accretism were retrospectively analyzed in our center from August 2012 to October 2014. All 23 subjects underwent cesarean section with prophylactic balloon occlusion of the abdominal aorta. RESULTS: All of the 23 subjects experienced singleton pregnancies leading to the birth of live infants...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29145277/tricho-hepato-enteric-syndrome-with-novel-skiv2l-gene-mutations-a-case-report
#13
Eitaro Hiejima, Takahiro Yasumi, Hiroshi Nakase, Minoru Matsuura, Yusuke Honzawa, Hirokazu Higuchi, Ikuo Okafuji, Tohru Yorifuji, Takayuki Tanaka, Kazushi Izawa, Tomoki Kawai, Ryuta Nishikomori, Toshio Heike
RATIONALE: Tricho-hepato-enteric syndrome (THES) is a rare disorder caused by mutations in the TTC37 or SKIV2L genes and characterized by chronic diarrhea, liver disease, hair abnormalities, and high mortality in early childhood due to severe infection or liver cirrhosis. PATIENT CONCERNS: The patient is the second child of three siblings born to non-consanguineous healthy Japanese parents. She had intrauterine growth retardation and was delivered at 33 weeks of gestation due to placental abruption...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29145147/up-regulation-of-mir-299-suppressed-the-invasion-and-migration-of-htr-8-svneo-trophoblast-cells-partly-via-targeting-hdac2-in-pre-eclampsia
#14
Yu Gao, Ruilian She, Qian Wang, Yan Li, Haiying Zhang
Pre-eclampsia (PE), a pregnancy-associated disorder, is a major contributor to maternal mortality and morbidity worldwide. Recently, microRNAs (miRNAs) were found to be associated with the pathogenesis of PE. The present study investigated the function of miR-299 in HTR-8/SVneo trophoblast cells and explored its underlying mechanism in the pathogenesis of PE. The miR-299 and histone deacetylase 2 (HDAC2) mRNA expression levels were determined by quantitative real-time PCR. Transwell invasion and wound healing assays were used to measure cell invasive and migratory ability...
November 13, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29145065/gestational-differences-in-murine-placenta-glycolytic-metabolism-and-pregnancy-parameters
#15
Renee E Albers, Christopher A Waker, Chanel Keoni, Melissa R Kaufman, Michael A Bottomley, Sarah Min, David R Natale, Thomas L Brown
The placenta is a complex and essential organ composed largely of fetal-derived cells, including several different trophoblast subtypes that work in unison to support nutrient transport to the fetus during pregnancy. Abnormal placental development can lead to pregnancy-associated disorders that often involve metabolic dysfunction. The scope of dysregulated metabolism during placental development may not be fully representative of the in vivo state in defined culture systems, such as cell lines or isolated primary cells...
November 4, 2017: Theriogenology
https://www.readbyqxmd.com/read/29142905/p-cadherin-cdh3-is-overexpressed-in-colorectal-tumors-and-has-potential-as-a-serum-marker-for-colorectal-cancer-monitoring
#16
H M C Shantha Kumara, Geoffrey A Bellini, Otavia L Caballero, Sonali A C Herath, Tao Su, Aqeel Ahmed, Linda Njoh, Vesna Cekic, Richard L Whelan
Introduction: Placental-Cadherin (CDH3) is a cell adhesion molecule vital to cellular localization and tissue integrity. It is highly expressed in the placenta (PLC)and is overexpressed by many types of cancer. P-cadherin levels in colorectal cancer (CRC) remains poorly characterized. This study's purpose was to determine P-cadherin expression in CRC and normal tissues and to assess plasma CDH3 levels in order to determine the relationship, if any, between cancer stage, P-cadherin expression and plasma CDH3 levels...
September 2017: Oncoscience
https://www.readbyqxmd.com/read/29142770/placental-teratoma-omphalomesenteric-duct-remnant-or-intestinal-organoid-enteroid-differentiation-a-diagnostic-dilemma
#17
Salwa Khedr, Tarek Jazaerly, Stefan Kostadinov
We report an unusual case of fully developed fetal intestinal segment(s) within a nodule on the chorionic plate of the placenta of a 27-year-old female patient at 37 weeks gestation with spontaneous vaginal delivery. Gross examination of the placenta revealed a chorionic plate nodule near the insertion of the umbilical cord, which, upon microscopic evaluation, raised the differential diagnostic possibilities of placental teratoma, vitelline/omphalomesenteric duct anomaly, and intestinal organoid differentiation...
December 2017: Journal of Pediatric Genetics
https://www.readbyqxmd.com/read/29142264/impairment-of-bkca-channels-in-human-placental-chorionic-plate-arteries-is-potentially-relevant-to-the-development-of-preeclampsia
#18
Mengzhou He, Fanfan Li, Meitao Yang, Yao Fan, Rajluxmee Beejadhursing, Yin Xie, Yuan Zhou, Dongrui Deng
Preeclampsia has known associations with insufficient placental perfusion. The large-conductance Ca(2+)-activated K(+) (BKca) channels that have recently been found to play important roles in cellular growth and vasodilatation could potentially participate in the development of preeclampsia. However, the mechanisms by which downregulated BKca channels are involved in the development of preeclampsia remain unknown. In this study, we investigated the mechanism(s) underlying the impairment of vascular tone regulation by BKca channels in human placental chorionic plate arteries (CPAs) in preeclampsia...
November 16, 2017: Hypertension Research: Official Journal of the Japanese Society of Hypertension
https://www.readbyqxmd.com/read/29142173/effect-of-dibutyltin-on-placental-and-fetal-toxicity-in-rat
#19
Satoshi Furukawa, Naho Tsuji, Yoshiyuki Kobayashi, Yoshikazu Yamagishi, Seigo Hayashi, Masayoshi Abe, Yusuke Kuroda, Masayuki Kimura, Chisato Hayakawa, Akihiko Sugiyama
In order to elucidate the effect of chorioallantoic and yolk sac placenta on the embryonic/fetal toxicity in dibutyltin dichloride (DBTCl)-exposed rats, we examined the histopathological changes and the tissue distribution of dibutyltin in the placentas and embryos. DBTCl was orally administered to the groups at doses of 0 mg/kg during gestation days (GD)s 7-9 (control group) and 20 mg/kg during GDs 7-9 (GD7-9 treated group), and GDs 10-12 (GD10-12 treated group). The total fetal mortality was increased, and malformations characterized by craniofacial dysmorphism were detected in the GD7-9 treated group...
2017: Journal of Toxicological Sciences
https://www.readbyqxmd.com/read/29141178/peri-conception-and-first-trimester-diet-modifies-reproductive-development-in-bulls
#20
K J Copping, M D Ruiz-Diaz, C S Rutland, N P Mongan, M J Callaghan, I C McMillen, R J Rodgers, V E A Perry
Nutritional perturbation during gestation alters male reproductive development in rodents and sheep. In cattle both the developmental trajectory of the feto-placental unit and its response to dietary perturbations is dissimilar to that of these species. This study examined the effects of dietary protein perturbation during the peri-conception and first trimester periods upon reproductive development in bulls. Nulliparous heifers (n=360) were individually fed a high- or low-protein diet (HPeri and LPeri) from 60 days before conception...
November 16, 2017: Reproduction, Fertility, and Development
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