keyword
MENU ▼
Read by QxMD icon Read
search

Uterine contraction

keyword
https://www.readbyqxmd.com/read/28631554/the-effects-of-platelet-activating-factor-on-uterine-contractility-perfusion-hypoxia-and-pain-in-mice
#1
Kevin M Hellman, Peter Y Yu, Folabomi A Oladosu, Chaya Segel, Alice Han, Pottumarthi V Prasad, Tamas Jilling, Frank F Tu
It is widely hypothesized that menstrual pain is triggered by prostaglandin synthesis that evokes high-pressure uterine contractions and ischemia. However, the effects of molecules implicated in menstrual pain on uterine contractility, perfusion, and oxygenation in vivo have been rarely demonstrated. Studies in women that do not respond to nonsteroidal anti-inflammatory drugs (NSAIDs) have reported elevated levels of platelet-activating factor (PAF). To establish in vivo evidence of PAF's capability to impair uterine homeostasis and to elicit visceral pain, we examined the effects of the PAF receptor agonist (carbamyl PAF [CPAF]) in comparison to other molecules hypothesized to play a role in uterine pain in mice...
January 1, 2017: Reproductive Sciences
https://www.readbyqxmd.com/read/28630830/bilateral-humerus-and-right-femur-fracture-in-a-newborn-after-cesarean-section-for-breech-presentation-in-a-twin-pregnancy-a-very-rare-case-report
#2
P Rahul, Amit Rakesh Grover, S M Ajoy
INTRODUCTION: The most common fractures during vaginal delivery occur in the clavicle, humerus, and femur. Cesarean section reduces the chances of a child having a birth injury. However, in some difficult extractions, long bone fractures may occur. Cesarean section further reduces the incidence of birth injuries, especially in a breech delivery. Maneuvers employed during cesarean section, energetic traction, improper uterine incisions, and contracted uterus may cause these injuries. In the medical literature, there are few articles highlighting the occurrence of long bone fractures during cesarean section...
January 2017: Journal of Orthopaedic Case Reports
https://www.readbyqxmd.com/read/28630618/perinatal-effects-of-scorpion-venoms-maternal-and-offspring-development
#3
REVIEW
Ana Leticia Coronado Dorce, Adriana do Nascimento Martins, Valquiria Abrão Coronado Dorce, Ana Leonor Abrahão Nencioni
Scorpion envenomation is a public health problem, especially in tropical and subtropical countries. Considering the high incidence of scorpionism in some areas, pregnant women and nursing mothers may be possible victims. Scorpion stings alter the release of neurotransmitters and some cytokines. These mediators act as organizers and programmers in the adequate formation of the nerves, and non-physiological concentrations of them during the brain organization originate disorders and diseases that can appear later in the life of the individual...
2017: Journal of Venomous Animals and Toxins Including Tropical Diseases
https://www.readbyqxmd.com/read/28593770/-retrospective-analysis-of-monochorionic-twin-pregnancies-born-in-the-institute-for-the-care-of%C3%A2-mother-and-child-between-2012-2015
#4
K Běhávková, L Krofta, K Macková, J Vojtěch, L Hašlík, R Pock, L Hympánová, M Kučerová, H Heřman, Z Straňák, J Feyereisl
OBJECTIVE: The purpose of this study was to describe monochorionic twin pregnancies and their complications, born between 24th and 37th week of gestation in the Institute for the Care of Mother and Child in years 2012-2015. DESIGN: Retrospective cohort. SETTING: The Institute for the Care of Mother and Child, Praha. METHODS: From 2012 to 2015 we observed 177 monochorionic twin pregnancies from which two or one viable fetuses were born, or both fetuses died in utero...
2017: Ceská Gynekologie
https://www.readbyqxmd.com/read/28559440/bitter-taste-receptors-as-targets-for-tocolytics-in-preterm-labor-therapy
#5
Kaizhi Zheng, Ping Lu, Ellen Delpapa, Karl Bellve, Ruitang Deng, Jennifer C Condon, Kevin Fogarty, Lawrence M Lifshitz, Tiffany A Moore Simas, Fangxiong Shi, Ronghua ZhuGe
Preterm birth (PTB) is the leading cause of neonatal mortality and morbidity, with few prevention and treatment options. Uterine contraction is a central feature of PTB, so gaining new insights into the mechanisms of this contraction and consequently identifying novel targets for tocolytics are essential for more successful management of PTB. Here we report that myometrial cells from human and mouse express bitter taste receptors (TAS2Rs) and their canonical signaling components (i.e., G-protein gustducin and phospholipase C β2)...
May 30, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/28556962/treatment-of-spontaneous-preterm-labour-with-retosiban-a-phase-ii-pilot-dose-ranging-study
#6
Steven Thornton, Guillermo Valenzuela, Charlotte Baidoo, Michael J Fossler, Timothy H Montague, Linda Clayton, Marcy Powell, Jerry Snidow, Brendt Stier, David Soergel
AIMS: To investigate maternal, fetal, and neonatal safety and tolerability, pharmacodynamics, and pharmacokinetics of intravenous (IV) retosiban in pregnant women with spontaneous preterm labour (PTL) between 34(0/7) and 35(6/7) weeks' gestation. METHODS: In parts A and B of a 3-part double-blind, placebo-controlled, multi-centre study, women were randomised 3:1 (Part A) or 2:1 (Part B) to either 12-hour (h) IV retosiban followed by a single dose of oral placebo (R-P) or 12-hour IV placebo followed by single-dose oral retosiban (P-R)...
May 29, 2017: British Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/28545266/-analysis-of-misssed-diagnosis-and-misdiagnosis-of-1-212-cases-with-placental-abruption
#7
D Xu, C Liang, J W Xu, J He
Objective: To investigate the risk factors and clinical manifestations of placental abruption, and to analyze the causes of missed diagnosis and misdiagnosis. Methods: A retrospective analysis was conducted in 135 584 women who delivered in Women's Hospital, School of Medicine, Zhejiang University from January 2005 to December 2015. The diagnosis of placental abruption was made in 1 212 cases. According to the consistency of prenatal and postnatal diagnosis, they were divided into 3 groups. (1) The diagnosis was consistent prenatally and postnatally in 715 cases(58...
May 25, 2017: Zhonghua Fu Chan Ke za Zhi
https://www.readbyqxmd.com/read/28536663/endometriosis-nodule-causing-spontaneous-haemoperitoneum-in-pregnancy-a-case-report-and-literature-review
#8
Junaid Rafi, Geetha Mahindrakar, Debjani Mukhopadhyay
Spontaneous haemoperitoneum in pregnancy (SHiP) due to endometriosis is a very rare condition and this is a case of a 41-year-old primigravida, who presented at 32 weeks with sudden onset of severe lower abdominal pain without any uterine activity. This was a dichorionic-diamniotic twin pregnancy, following in vitro fertilisation for subfertility secondary to severe endometriosis. On admission, pain score was eight, with ten being the maximum of the scale. The vital signs were stable. Abdominal palpation revealed generalised tenderness with no guarding or palpable contraction...
2017: Case Reports in Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28532844/effects-of-d-cloprostenol-on-different-layers-and-regions-of-the-bovine-uterus-during-the-follicular-and-luteal-phases
#9
M Piccinno, R L Sciorsci, V Masciopinto, M De Rosa, A Rizzo
INTRODUCTION: D-cloprostenol is a synthetic PGF2α, commonly used in bovine reproduction, that increases myometral contractility. However, little is known regarding its contractile behaviour and how it depends on the reproductive state and uterine topography (regions and muscular layers). HYPOTHESIS AND OBJECTIVES: These aspects would affect the action of d-cloprostenol on the uterus. Therefore, we hypothesize a possible use of this drug at the time of artificial insemination, to improve conception rates and, in the post-partum, in order to accelerate uterine involution in dairy cattle...
July 1, 2017: Theriogenology
https://www.readbyqxmd.com/read/28532683/the-essential-oil-from-the-twigs-of-cinnamomum-cassia-presl-inhibits-oxytocin-induced-uterine-contraction-in-vitro-and-in-vivo
#10
Lan Sun, Li-Na Liu, Jia-Chun Li, Yao-Zhong Lv, Shao-Bo Zong, Jun Zhou, Zheng-Zhong Wang, Jun-Ping Kou, Wei Xiao
ETHNOPHARMACOLOGICAL RELEVANCE: The twigs and bark of Cinnamomum cassia Presl (Lauraceae) are widely used in traditional Chinese medicine in the treatment of tumor, abdominal pain, dysmenorrhea, digestive system disease and inflammatory diseases. The aim of this study was to determine the inhibitory effect of the essential oil from the twigs of Cinnamomum cassia Presl (EOCC) on uterine contraction in vitro and in vivo. MATERIALS AND METHODS: The Institute of Cancer Research (ICR) mouse uterine contraction was induced by oxytocin (OT) exposure following estradiol benzoate pretreatment...
May 19, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28511577/sonographic-assessment-of-the-lower-uterine-segment-during-active-labor-in-women-with-or-without-a-uterine-scar-a-prospective-study
#11
Eran Barzilay, Amir Shay, Hila Lahav-Ezra, Avi Shina, Sharon Perlman, Reuven Achiron, Yinon Gilboa
OBJECTIVES: No study thus far has evaluated the LUS thickness in active labor. In this study we endeavored to assess the LUS during active labor. METHODS: Using transabdominal sonography in the mid-sagittal position with a full urinary bladder, the thickness of the LUS was measured during active labor phase in women with or without a history of a previous cesarean section. RESULTS: A total of 28 women with a previous cesarean delivery were compared to 29 women without a history of uterine surgery...
May 16, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28509860/a-combined-independent-source-separation-and-quality-index-optimization-method-for-fetal-ecg-extraction-from-abdominal-maternal-leads
#12
Lucia Billeci, Maurizio Varanini
The non-invasive fetal electrocardiogram (fECG) technique has recently received considerable interest in monitoring fetal health. The aim of our paper is to propose a novel fECG algorithm based on the combination of the criteria of independent source separation and of a quality index optimization (ICAQIO-based). The algorithm was compared with two methods applying the two different criteria independently-the ICA-based and the QIO-based methods-which were previously developed by our group. All three methods were tested on the recently implemented Fetal ECG Synthetic Database (FECGSYNDB)...
May 16, 2017: Sensors
https://www.readbyqxmd.com/read/28498625/biomechanics-of-the-human-uterus
#13
REVIEW
Kristin M Myers, David Elad
The appropriate biomechanical function of the uterus is required for the execution of human reproduction. These functions range from aiding the transport of the embryo to the implantation site, to remodeling its tissue walls to host the placenta, to protecting the fetus during gestation, to contracting forcefully for a safe parturition and postpartum, to remodeling back to its nonpregnant condition to renew the cycle of menstruation. To serve these remarkably diverse functions, the uterus is optimally geared with evolving and contractile muscle and tissue layers that are cued by chemical, hormonal, electrical, and mechanical signals...
May 12, 2017: Wiley Interdisciplinary Reviews. Systems Biology and Medicine
https://www.readbyqxmd.com/read/28494996/prediction-of-labor-onset-type-spontaneous-vs-induced-role-of-electrohysterography
#14
Jose Alberola-Rubio, Javier Garcia-Casado, Gema Prats-Boluda, Yiyao Ye-Lin, Domingo Desantes, Javier Valero, Alfredo Perales
BACKGROUND AND OBJECTIVE: Induction of labor (IOL) is a medical procedure used to initiate uterine contractions to achieve delivery. IOL entails medical risks and has a significant impact on both the mother's and newborn's well-being. The assistance provided by an automatic system to help distinguish patients that will achieve labor spontaneously from those that will need late-term IOL would help clinicians and mothers to take an informed decision about prolonging pregnancy. With this aim, we developed and evaluated predictive models using not only traditional obstetrical data but also electrophysiological parameters derived from the electrohysterogram (EHG)...
June 2017: Computer Methods and Programs in Biomedicine
https://www.readbyqxmd.com/read/28487952/expression-of-reproductive-hormone-receptors-and-contraction%C3%A2-associated-genes-in-porcine-uterus-during-the-estrous-cycle
#15
Sung-Min An, Sun Suk Kim, Jun Kim, Mee-Na Park, Jae-Eon Lee, Seong Keun Cho, Kyu-Sup Lee, Beum-Soo An
Contraction of uterus tissue frequently occurs throughout the estrous cycle and is regulated by several endogenous factors, including estradiol, progesterone, luteinizing hormone, follicle‑stimulating hormone, oxytocin (OXT) and contraction‑associated proteins (CAPs). Contraction activity of uterus tissue according to the estrous cycle is important, due to the fact that it is directly associated with balanced implantation and stable pregnancy. However, few studies have examined the mechanism of uterus contraction activity in a porcine model...
June 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28485811/the-effects-of-second-messenger-camp-and-its-relative-components-on-the-contraction-of-uterine-smooth-muscle-of-rat
#16
S-J Shu, X-G Lei, J-H Liang, Y-H Song, Q Xu, X-D Chen, L-G Mao, Z-G Li
OBJECTIVE: To investigate the effect of second messenger pathways on the uterine smooth muscle contraction and their associated mechanisms, and compare the evaluation methods. MATERIALS AND METHODS: Preparation of uterine smooth muscle strips from healthy pregnant 18-21 d SD and non-pregnant rats. When the contraction of muscle strips was stable, we conducted gradient administration: PDE4 inhibitors (Z90), prostaglandin PGE2, adenylate cyclase inhibitor (SQ 22,530), cAMP analogs (dbcAMP) and AMPK agonists (AICAR), solvent dimethyl sulfoxide (DMSO) as controlled...
April 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28484835/effectiveness-of-the-contemporary-treatment-of-preterm-labor-a-comparison-with-a-historical-cohort
#17
Philipp Wagner, Jiri Sonek, Harald Abele, Loefler Sarah, Markus Hoopmann, Sara Brucker, Qinging Wu, Karl Oliver Kagan
OBJECTIVE: To compare the effectiveness of contemporary treatment of preterm labor to a historical cohort. STUDY DESIGN: Retrospective matched case-control study to compare the outcomes of patients that were treated for preterm labor at the University Hospital of Tuebingen, Germany in 2014/2015 (current treatment cohort) and 2006/2007 (historical cohort). The study included women with singleton gestations who were admitted with the diagnosis of preterm labor between 24 + 0 and 34 + 0 weeks' gestation and a cervical length of ≤15 mm...
May 8, 2017: Archives of Gynecology and Obstetrics
https://www.readbyqxmd.com/read/28479286/pdbu-induced-pkc-activation-triggers-sustained-contracture-in-human-myometrium-in-vitro
#18
Laurence Massenavette, Wilène Paul, Stéphanie Corriveau, Jean-Charles Pasquier, Éric Rousseau
BACKGROUND: Although physiological transition from rhythmic contractions to uterine retraction postpartum remains a poorly understood process, it has been shown that the latter is essential in the prevention of hemorrhage and its negative consequences. OBJECTIVE: This study aimed to investigate the transition from oscillatory contractions to tonic contracture in human myometrium after delivery; a mechanism purported to facilitate postpartum hemostasis. Protein Kinase C (PKC) plays a key regulatory role in human uterine contractions since it can prevent dephosphorylation of regulatory proteins and sensitize the contractile machinery to low Ca2+...
May 4, 2017: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28478816/effects-of-hypnosis-during-pregnancy-a-psychophysiological-study-on-maternal-stress
#19
Fabien Legrand, Corinne Grévin-Laroche, Elisabeth Josse, Guillaume Polidori, Hervé Quinart, Redha Taïar
Because it induces a state of reduced awareness and deep relaxation, hypnosis is thought to be efficient at relieving stress and anxiety. This study examined whether hypnosis may alter the pattern and time evolution of maternal and fetal stress. Here we report a 23-yrs-old primigravida woman at 31-weeks' gestation who underwent daily sessions of hypnosis during one week. An A (baseline)-B (intervention) - A' (return to baseline) design was used. Each study phase lasted one week. The State Anxiety Inventory (SAI) was completed daily...
May 2017: Medical Hypotheses
https://www.readbyqxmd.com/read/28473289/oxytocin-administration-during-spontaneous-labor-guidelines-for-clinical-practice-chapter-2-indications-of-oxytocin-according-the-first-and-second-stages-of-spontaneous-labor
#20
L Gaucher, C Le Ray
No abstract text is available yet for this article.
May 1, 2017: Journal of gynecology obstetrics and human reproduction
keyword
keyword
96607
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"