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Uterine activity

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https://www.readbyqxmd.com/read/29673691/laparoscopic-inguinal-ligament-suspension-with-uterine-preservation-for-pelvic-organ-prolapse-a-retrospective-cohort-study
#1
Chunbo Li, Huimin Shu, Zhiyuan Dai
OBJECTIVE: To introduce an alternative surgical technique of laparoscopic inguinal ligament suspension (LILS) with uterine preservation and evaluate its efficacy and safety for patients with severe pelvic organ prolapse (POP). METHODS: Between June 2014 and December 2015, 35 patients with symptomatic stage III or IV were treated by LILS with uterine preservation. The perioperative parameters including surgical time, blood loss, hospital stay and complications were recorded...
April 16, 2018: International Journal of Surgery
https://www.readbyqxmd.com/read/29673674/association-between-18f-fluorodeoxyglucose-pet-ct-and-histological-grade-of-uterine-endometrial-carcinoma
#2
Hiroaki Takagi, Toshiyuki Sasagawa, Takeo Shibata, Hiroshi Minato, Tomoko Takahashi
OBJECTIVE: The incidence of endometrial adenocarcinoma of the uterine corpus has increased in Japan. This study aimed to clarify the relationships between this type of cancer and various data provided by 18F-fluorodeoxyglucose (FDG) accumulation in positron emission tomography/computed tomography (PET/CT). MATERIALS AND METHODS: The study cohort thus comprised 27 patients with endometrial adenocarcinoma who had undergone PET/CT examinations from April 2008 to March 2015...
April 2018: Taiwanese Journal of Obstetrics & Gynecology
https://www.readbyqxmd.com/read/29670041/comparative-evaluation-of-arabin-pessary-and-cervical-cerclage-for-the-prevention-of-preterm-labor-in-asymptomatic-women-with-high-risk-factors
#3
Panagiotis Tsikouras, George Anastasopoulos, Vasileios Maroulis, Anastasia Bothou, Anna Chalkidou, Dorelia Deuteraiou, Xanthoula Anthoulaki, Georgios Tsatsaris, Arzou Halil Bourazan, George Iatrakis, Stefanos Zervoudis, Georgios Galazios, Lola-Katerina Inagamova, Roland Csorba, Alexander-Tobias Teichmann
OBJECTIVE: Preterm labor is one of the most significant obstetric problems associated with high rate of actual and long-term perinatal complications. Despite the creation of scoring systems, uterine activity monitoring, cervical ultrasound and several biochemical markers, the prediction and prevention of preterm labor is still a matter of concern. The aim of this study was to examine cervical findings for the prediction and the comparative use of Arabin pessary or cerclage for the prevention of preterm birth in asymptomatic women with high risk factors for preterm labor...
April 18, 2018: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/29665323/introducing-a-novel-highly-prognostic-grading-scheme-based-on-tumour-budding-and-cell-nest-size-for-squamous-cell-carcinoma-of-the-uterine-cervix
#4
Moritz Jesinghaus, Johanna Strehl, Melanie Boxberg, Frido Brühl, Adrian Wenzel, Björn Konukiewitz, Anna M Schlitter, Katja Steiger, Arne Warth, Andreas Schnelzer, Marion Kiechle, Matthias W Beckmann, Aurelia Noske, Arndt Hartmann, Grit Mehlhorn, Martin C Koch, Wilko Weichert
A novel histopathological grading system based on tumour budding and cell nest size has recently been shown to outperform conventional (WHO-based) grading algorithms in several tumour entities such as lung, oral, and oesophageal squamous cell carcinoma (SCC) in terms of prognostic patient stratification. Here, we tested the prognostic value of this innovative grading approach in two completely independent cohorts of SCC of the uterine cervix. To improve morphology-based grading, we investigated tumour budding activity and cell nest size as well as several other histomorphological factors (e...
April 2018: Journal of Pathology. Clinical Research
https://www.readbyqxmd.com/read/29662717/tumor-necrosis-factor-alfa-and-interleukin-1-alfa-induced-phosphorylation-and-degradation-of-inhibitory-kappa-b-alpha-are-regulated-by-estradiol-in-endometrial-cells
#5
Sefa Arlıer, Ümit Ali Kayışlı, Aydın Arıcı
Objective: When bound to the inhibitory kappa B (IкB) protein, the transcription factor nuclear factor kappa B (NF-кB) remains inactively in the cytoplasm. Activated NF-кB upregulates the gene expression of many chemokines including monocyte chemoattractant protein-1 and interleukin (IL)-8. We hypothesized that estrogen may regulate IкB phosphorylation and degradation thus influencing NF-кB-dependent gene expression. Regulation of chemokines by estrogen is different in uterine endometrial cells when compared to ectopic endometrial cells of endometriosis...
March 2018: Turkish Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/29661501/mechanical-strain-induced-phospho-proteomic-signaling-in-uterine-smooth-muscle-cells
#6
Christian Copley Salem, Craig Ulrich, David Quilici, Karen Schlauch, Iain L O Buxton, Heather Burkin
Mechanical strain associated with the expanding uterus correlates with increased preterm birth rates. Mechanical signals result in a cascading network of protein phosphorylation events. These signals direct cellular activities and may lead to changes in contractile phenotype and calcium signaling. In this study, the complete phospho-proteome of uterine smooth muscle cells subjected to mechanical strain for 5 min was compared to un-strained controls. Statistically significant, differential phosphorylation events were annotated by Ingenuity Pathway Analysis to elucidate mechanically induced phosphorylation networks...
March 30, 2018: Journal of Biomechanics
https://www.readbyqxmd.com/read/29660835/pdgfra-mrna-overexpression-is-associated-with-regional-metastasis-and-reduced-survival-in-oral-squamous-cell-carcinoma
#7
Hui Shan Ong, Sandhya Gokavarapu, Zhen Tian, Jiang Li, Qin Xu, Chen Ping Zhang, Wei Cao
BACKGROUND: Platelet-derived growth factor alpha (PDGFRA) is a gene encoding tyrosine kinase receptor and both EGFR and PDGFRA activate tyrosine kinase. The implication of PGFRA in many cancers and its prognostic significance irrespective to EGFR status in spinal chordoma, gliomas and uterine cancers has shown a need for its investigation in oral squamous cell carcinoma (OSCC). We investigated the prognostic value of PDGFRA mRNA expression in OSCC. PATIENTS AND METHODS: The study was conducted in the department of oral maxillofacial surgery-head and neck oncology, at a tertiary hospital...
April 16, 2018: Journal of Oral Pathology & Medicine
https://www.readbyqxmd.com/read/29658437/decreased-expression-of-hoxa10-may-activate-the-autophagic-process-in-ovarian-endometriosis
#8
Jingjie Zheng, Xishao Luo, Jiaping Bao, Xiaowang Huang, Yi Jin, Lin Chen, Feiyun Zheng
Autophagy is a survival process that maintains homeostasis in all eukaryotic cells. Recent studies show an abnormal autophagic activity in endometriosis, but the role of autophagy is controversial. Homeobox A10 (HOXA10) is a transcription factor necessary for embryonic and adult uterine development, and studies indicate that its expression decreases in endometriosis. Homeobox A10 may negatively regulate autophagy in endometriosis. To test this hypothesis, we measured the expression levels of autophagic biomarkers (beclin-1 and LC3-II) and HOXA10 proteins by Western blotting and messenger RNA (mRNA) by quantitative real-time polymerase chain reaction...
January 1, 2018: Reproductive Sciences
https://www.readbyqxmd.com/read/29658433/feasibility-of-transabdominal-electrohysterography-for-analysis-of-uterine-activity-in-nonpregnant-women
#9
Federica Sammali, Nienke Pertronella Maria Kuijsters, Benedictus Christiaan Schoot, Massimo Mischi, Chiara Rabotti
PURPOSE: Uterine activity plays a key role in reproduction, and altered patterns of uterine contractility have been associated with important physiopathological conditions, such as subfertility, dysmenorrhea, and endometriosis. However, there is currently no method to objectively quantify uterine contractility outside pregnancy without interfering with the spontaneous contraction pattern. Transabdominal electrohysterography has great potential as a clinical tool to characterize noninvasively uterine activity, but results of this technique in nonpregnant women are poorly documented...
January 1, 2018: Reproductive Sciences
https://www.readbyqxmd.com/read/29656535/uterine-and-eggshell-modifications-associated-with-the-evolution-of-viviparity-in-south-american-water-snakes-helicops-spp
#10
Henrique B Braz, Selma M Almeida-Santos, Christopher R Murphy, Michael B Thompson
The evolution of viviparity requires eggshell thinning to bring together the maternal uterus and extraembryonic membranes to form placentae for physiological exchanges. Eggshell thinning likely involves reduced activity of the uterine glands that secrete it. We tested these hypotheses by comparing the uterine and eggshell structure and histochemistry among oviparous and viviparous water snakes (Helicops) using phylogenetic methods. Eggshell thinning occurred convergently in all three origins of viviparity in Helicops and was accomplished by the loss of the mineral layer and thinning of the shell membrane...
April 14, 2018: Journal of Experimental Zoology. Part B, Molecular and Developmental Evolution
https://www.readbyqxmd.com/read/29656508/the-3-rd-world-conference-on-kisspeptin-kisspeptin-2017-brain-and-beyond-unresolved-questions-challenges-and-future-directions-for-the-field
#11
REVIEW
Michael N Lehman, Lique M Coolen, Robert A Steiner, Genevieve Neal-Perry, Luhong Wang, Suzanne M Moenter, Aleisha M Moore, Robert L Goodman, Shel Hwa-Yeo, Stephanie L Padilla, Alexander S Kauffman, James Garcia, Martin J Kelly, Jenny Clarkson, Sally Radovick, Andy V Babwah, Silvia Leon, Manuel Tena-Sempere, Alex Comninos, Stephanie Seminara, Waljit S Dhillo, Jon Levine, Ei Terasawa, Ariel Negron, Allan E Herbison
The 3rd World Conference on Kisspeptin, "Kisspeptin 2017: Brain and Beyond" was held March 30-31 at the Rosen Centre Hotel in Orlando, Florida, providing an international forum for multidisciplinary scientists to meet and share cutting-edge research on kisspeptin biology and its relevance to human health and disease. The meeting built upon previous world conferences focused on the role of kisspeptin and associated peptides in the control of gonadotropin-releasing hormone (GnRH) secretion and reproduction...
April 14, 2018: Journal of Neuroendocrinology
https://www.readbyqxmd.com/read/29648668/widespread-enhancer-activation-via-er%C3%AE-mediates-estrogen-response-in-vivo-during-uterine-development
#12
Wendy N Jefferson, H Karimi Kinyamu, Tianyuan Wang, Adam X Miranda, Elizabeth Padilla-Banks, Alisa A Suen, Carmen J Williams
Little is known regarding how steroid hormone exposures impact the epigenetic landscape in a living organism. Here, we took a global approach to understanding how exposure to the estrogenic chemical, diethylstilbestrol (DES), affects the neonatal mouse uterine epigenome. Integration of RNA- and ChIP-sequencing data demonstrated that ∼80% of DES-altered genes had higher H3K4me1/H3K27ac signal in close proximity. Active enhancers, of which ∼3% were super-enhancers, had a high density of estrogen receptor alpha (ERα) binding sites and were correlated with alterations in nearby gene expression...
April 10, 2018: Nucleic Acids Research
https://www.readbyqxmd.com/read/29628561/norepinephrine-versus-ephedrine-to-maintain-arterial-blood-pressure-during-spinal-anesthesia-for-cesarean-delivery-a-prospective-double-blinded-trial
#13
Ali Mohamed Ali Elnabtity, Mohamed Foad Selim
Background: Ephedrine was conventionally regarded as the first-choice drug to maintain maternal blood pressure during spinal anesthesia for cesarean delivery, due to its stimulant activity on α- and β-adrenergic receptors. Norepinephrine is a weak β-adrenergic and potent α-adrenergic receptor agonist. Therefore, it may be suitable for maintaining blood pressure with less chronotropic effects compared to ephedrine. Patients and Methods: One hundred and forty healthy patients having cesarean delivery under spinal anesthesia were randomized to Group N ( n = 61) who received a prophylactic bolus of norepinephrine 5 μg intravenous (i...
January 2018: Anesthesia, Essays and Researches
https://www.readbyqxmd.com/read/29627619/impact-of-prednisone-in-patients-with-repeated-embryo-implantation-failures-beneficial-or-deleterious
#14
REVIEW
Nathalie Lédée, Laura Prat-Ellenberg, Marie Petitbarat, Lucie Chevrier, Cynthia Simon, Elie El Irani, Dominique Vitoux, Armand Bensussan, Gérard Chaouat
INTRODUCTION: Corticotherapy is the leading medication worldwide for patients with history of repeated implantation failures (RIF) after IVF/ICSI. Nevertheless, we still do not know its local mechanism of action, hence its precise indication. Our objective is to document the impact of prednisone on the endometrial expression of immune biomarkers (CD56 cells count, IL-18/TWEAK, IL-15/Fn-14 mRNA ratio) at the time of uterine receptivity in a RIF population. MATERIALS AND METHOD: An endometrial biopsy was realized in the mid luteal phase for immune profiling: IL-15/Fn-14 and IL-18/TWEAK mRNA ratios were determined by quantitative RT-PCR and CD56 mobilization per IHC...
March 26, 2018: Journal of Reproductive Immunology
https://www.readbyqxmd.com/read/29624291/neonatal-genistein-exposure-and-glucocorticoid-signaling-in-the-adult-mouse-uterus
#15
Shannon D Whirledge, Edwina P Kisanga, Robert H Oakley, John A Cidlowski
BACKGROUND: Female reproductive tract development is sensitive to the endocrine-disrupting potential of environmental estrogens. Early-life exposure to the dietary phytoestrogen genistein impairs fertility and persistently alters the transcriptome in the oviduct and uterus of rodents. Glucocorticoid signaling, which has recently been shown to be essential for normal fertility in the female mouse uterus, is antagonized by genistein. OBJECTIVE: Our goal was to determine whether early-life exposure to genistein disrupts glucocorticoid signaling in the mouse uterus, which may contribute to infertility...
April 5, 2018: Environmental Health Perspectives
https://www.readbyqxmd.com/read/29623045/relaxin-deficiency-leads-to-uterine-artery-dysfunction-during-pregnancy-in-mice
#16
Sarah A Marshall, Sevvandi N Senadheera, Maria Jelinic, Kelly O'Sullivan, Laura J Parry, Marianne Tare
The uterine vasculature undergoes profound adaptations in response to pregnancy. Augmentation of endothelial vasodilator function and reduced smooth muscle reactivity are factors contributing to uterine artery adaptation and are critical for adequate placental perfusion. The peptide hormone relaxin has an important role in mediating the normal maternal renal vascular adaptations during pregnancy through a reduction in myogenic tone and an increase in flow-mediated vasodilation. Little is known however about the influence of endogenous relaxin on the uterine artery during pregnancy...
2018: Frontiers in Physiology
https://www.readbyqxmd.com/read/29622362/clinical-outcomes-of-23-patients-who-had-repeat-pelvic-arterial-embolisation-for-uncontrolled-post-partum-haemorrhage-at-a-single-centre
#17
W Choi, J H Shin, P H Kim, K Han, J Y Ohm, J H Kim, J W Kim
AIM: To evaluate the safety and efficacy of repeated pelvic arterial embolisation (PAE) for uncontrolled postpartum haemorrhage (PPH) after a single session of PAE and to compare angiographic findings between the two sessions of PAE. MATERIALS AND METHODS: A total of 23 consecutive patients (age range, 23-44 years) who underwent repeated PAE for uncontrolled PPH between March 2001 and January 2016 in Severance Hospital were reviewed. The interval times between the two sessions of PAE, the angiographic findings, embolic materials, arteries embolised during PAE, and the clinical outcomes were reviewed retrospectively...
April 2, 2018: Clinical Radiology
https://www.readbyqxmd.com/read/29618799/s-nitrosoglutathione-reductase-underlies-the-dysfunctional-relaxation-to-nitric-oxide-in-preterm-labor
#18
Scott D Barnett, Christina R Smith, Craig C Ulrich, Josh E Baker, Iain L O Buxton
Tocolytics show limited efficacy to prevent preterm delivery. In uterine smooth muscle cGMP accumulation following addition of nitric oxide (NO) has little effect on relaxation suggesting a role for protein S-nitrosation. In human myometrial tissues from women in labor at term (TL), or spontaneously in labor preterm (sPTL), direct stimulation of soluble guanylyl cyclase (sGC) fails to relax myometrium, while the same treatment relaxes vascular smooth muscle completely. Unlike term myometrium, effects of NO are not only blunted in sPTL, but global protein S-nitrosation is also diminished, suggesting a dysfunctional response to NO-mediated protein S-nitrosation...
April 4, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29608330/a-novel-target-of-p53-tcf21-can-respond-to-hypoxia-by-mapk-pathway-inactivation-in-uterine-corpus-endometrial-carcinoma
#19
Qin Li, Yong Lei, Wei Du
Uterine corpus endometrial carcinoma (UCEC) is a common malignancy in the female reproductive system, associated with high morbidity and mortality. Despite the high prevalence of UCEC, molecular understanding of uterine endothelium tumorigenesis remains poorly understood. In this study, we reported that transcription factor 21 (TCF21) inhibits cancer cell proliferation and invasion following overexpression, in vitro and in vivo. Moreover, in response to hypoxia, TCF21 is highly expressed in UCEC cells carrying wild-type p53, and is transcriptional target of p53...
April 2, 2018: DNA and Cell Biology
https://www.readbyqxmd.com/read/29599898/the-effects-of-ibogaine-on-uterine-smooth-muscle-contractions-relation-to-the-activity-of-antioxidant-enzymes
#20
Zorana Oreščanin-Dušić, Nikola Tatalović, Teodora Vidonja-Uzelac, Jelena Nestorov, Aleksandra Nikolić-Kokić, Ana Mijušković, Mihajlo Spasić, Roman Paškulin, Mara Bresjanac, Duško Blagojević
Ibogaine is an indole alkaloid originally extracted from the root bark of the African rainforest shrub Tabernanthe iboga . It has been explored as a treatment for substance abuse because it interrupts drug addiction and relieves withdrawal symptoms. However, it has been shown that ibogaine treatment leads to a sharp and transient fall in cellular ATP level followed by an increase of cellular respiration and ROS production. Since contractile tissues are sensitive to changes in the levels of ATP and ROS, here we investigated an ibogaine-mediated link between altered redox homeostasis and uterine contractile activity...
2018: Oxidative Medicine and Cellular Longevity
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