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https://www.readbyqxmd.com/read/27899300/role-of-the-endocannabinoid-system-in-the-control-of-mouse-myometrium-contractility-during-the-menstrual-cycle
#1
Ester Pagano, Pierangelo Orlando, Stefania Finizio, Antonietta Rossi, Lorena Buono, Fabio Arturo Iannotti, Fabiana Piscitelli, Angelo A Izzo, Vincenzo Di Marzo, Francesca Borrelli
Cannabis and cannabinoids are known to affect female reproduction. However, the role of the endocannabinoid system in mouse uterine contractility in the dioestrus and oestrus phases has not been previously investigated. The present study aimed at filling this gap. Endocannabinoid (anandamide and 2-arachidonoylglycerol) levels were measured in mouse uterus at dioestrus and oestrus phases by liquid chromatography-mass spectrometry; quantitative reverse transcription-PCR measured mRNA expression of cannabinoid receptors and enzymes involved in the metabolism of endocannabinoids...
November 26, 2016: Biochemical Pharmacology
https://www.readbyqxmd.com/read/27895514/success-rate-in-preterm-uterine-contraction-inhibition-with-tocolytic-agents-in-a-tertiary-care-center
#2
Duangsamorn Kiatsuda, Jadsada Thinkhamrop, Witoon Prasertcharoensuk
OBJECTIVE: This study aims to assess the success rate of inhibiting preterm uterine contraction with tocolytic agents to delay delivery for at least 48 hours and risk factors of failure inhibition. MATERIALS AND METHODS: Between January 2013 and July 2014, medical records of all singleton pregnant women between 24 (0/7) and 33 (6/7) weeks of gestation with the diagnosis of preterm labor (with cervical dilatation) or threatened preterm labor (without cervical dilatation) who received tocolytic agents were reviewed...
2016: International Journal of Women's Health
https://www.readbyqxmd.com/read/27888061/secretory-function-of-ovarian-cells-and-myometrial-contractions-in-cow-are-affected-by-chlorinated-insecticides-chlordane-heptachlor-mirex-in-vitro
#3
Michael Hubert Wrobel, Jaroslaw Mlynarczuk
The aim of the study was to investigate the effect of chlordane, heptachlor and mirex, on hormonal regulation of the force of myometrial contractions. Myometrial, endometrial, granulosa and luteal cells as well as strips of myometrium from non-pregnant cows were incubated with three insecticides at environmentally relevant doses (0.1, 1 or 10ng/ml). None of the insecticides affected the viability of studied cells. Chlordane stimulated, while heptachlor and mirex inhibited, secretion of testosterone and estradiol from granulosa cells as well as secretion of progesterone from luteal cells, respectively...
November 22, 2016: Toxicology and Applied Pharmacology
https://www.readbyqxmd.com/read/27870739/performance-of-the-angle-labor-pain-questionnaire-during-initiation-of-epidural-analgesia-in-early-active-labor
#4
Pamela J Angle, Christine Kurtz Landy, Jasmine Djordjevic, Jon Barrett, Alanna Kibbe, Saiena Sriparamananthan, Yuna Lee, Lydia Hamata, Pearl Zaki, Alex Kiss
BACKGROUND: The Angle Labor Pain Questionnaire (A-LPQ) is a new, 22-item multidimensional psychometric questionnaire that measures the 5 most important dimensions of women's childbirth pain experiences using 5 subscales: The Enormity of the Pain, Fear/Anxiety, Uterine Contraction Pain, Birthing Pain, and Back Pain/Long Haul. Previous work showed that the A-LPQ has overall good psychometric properties and performance during early active labor in women without pain relief. The current study assessed the tool's sensitivity to change during initiation of labor epidural analgesia with the standardized response mean (SRM, primary outcome)...
December 2016: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/27865941/local-injection-of-diluted-vasopressin-followed-by-suction-curettage-for-cervical-ectopic-pregnancy
#5
Hiroshi Ishikawa, Youichi Unno, Akiko Omoto, Makio Shozu
OBJECTIVE: To report the results of local injection of diluted vasopressin followed by suction curettage as a conservative treatment for women with cervical ectopic pregnancy, who wish to preserve their future fertility. STUDY DESIGN: This was a retrospective chart review in a university hospital and a municipal hospital. We injected diluted vasopressin (Pitressin R, total amount of 4-10 units) transvaginally into the cervix surrounding the gestational sac, but not directly into the gestational sac, and/or the lower segment of the uterine body under transvaginal ultrasonographic guidance...
November 11, 2016: European Journal of Obstetrics, Gynecology, and Reproductive Biology
https://www.readbyqxmd.com/read/27851719/the-correlation-between-serum-vitamin-d-deficiency-and-preterm-birth
#6
Lixia Yang, Shilei Pan, Yufeng Zhou, Xiaoyang Wang, Aikai Qin, Yuxin Huang, Suxia Sun
BACKGROUND Preterm birth is an important cause of death and developmental disorder in neonates. Vitamin D deficiency has been shown to regulate body inflammatory factor levels that stimulate elevation of uterine contraction hormones, such as prostaglandin, thus causing preterm birth. However, current observations regarding the relationship between vitamin D and preterm birth are inconsistent. We performed a nested case-control study to investigate the effect of vitamin D on preterm birth. MATERIAL AND METHODS A prospective cohort study included 200 cases of pregnant women in our hospital from May 2013 to May 2015...
November 16, 2016: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/27844497/is-a-cause-of-postpartum-hemorrhage-of-using-of-tocolytic-agents-in-preterm-delivery
#7
Soo Ran Choi, NaeRi Yoon, Sung Ook Hwang
OBJECTIVE: Tocolytic agents are used to inhibit uterine contraction in preterm. The authors undertook this study to determine whether the using of tocolytics agents before delivery is associated with increase postpartum hemorrhage in preterm delivered women. METHOD: 296 singleton pregnancies delivered preterm from 24 + 1 to 37 + 0 weeks gestation were retrospectively reviewed. Hemoglobin (HB) and hematocrit (HCT) levels were checked before and after delivery to access postpartum blood loss...
November 15, 2016: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/27843776/a-randomized-controlled-trial-comparing-use-of-enthonox-with-pethidine-for-pain-relief-in-primigravid-women-during-the-active-phase-of-labor
#8
Noshin Mobaraki, Mahzad Yousefian, Solmaz Seifi, Mehran Sakaki
BACKGROUND: The use of pain-relieving drugs during labor is now part of standard care in many countries throughout the world. Each method of pain relief has its own risks and benefits, variations in effectiveness, and availability and acceptability. OBJECTIVES: This study aimed to assess the efficacy and safety of intramuscular pethidine as an analgesic during labor by comparing it to inhaled 50% nitrous oxide (Entonox). METHODS: In this clinical trial study, 100 women who expected to have a natural childbirth were observed...
August 2016: Anesthesiology and Pain Medicine
https://www.readbyqxmd.com/read/27833558/serelaxin-elicits-bronchodilation-and-enhances-%C3%AE-adrenoceptor-mediated-airway-relaxation
#9
Maggie Lam, Simon G Royce, Chantal Donovan, Maria Jelinic, Laura J Parry, Chrishan S Samuel, Jane E Bourke
Treatment with β-adrenoceptor agonists does not fully overcome the symptoms associated with severe asthma. Serelaxin elicits potent uterine and vascular relaxation via its cognate receptor, RXFP1, and nitric oxide (NO) signaling, and is being clinically evaluated for the treatment of acute heart failure. However, its direct bronchodilator efficacy has yet to be explored. Tracheal rings were prepared from male Sprague-Dawley rats (250-350 g) and tricolor guinea pigs, and precision cut lung slices (PCLSs) containing intrapulmonary airways were prepared from rats only...
2016: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/27832403/intrapartum-transperineal-ultrasound-for-evaluating-uterine-contraction-intensity-in-the-second-stage-of-labor
#10
Miyuki Muramoto, Kiyotake Ichizuka, Junichi Hasegawa, Masamitsu Nakamura, Satoshi Dohi, Hiroshi Saito, Masaaki Nagatsuka
PURPOSE: To clarify whether intrapartum transperineal ultrasound (ITU) can be used to evaluate uterine contraction intensity, and whether the intensity is associated with the duration of the second stage. METHODS: A prospective observational study was performed involving 86 women with a normal singleton term fetus and more than three contractions every 10 min. ITU was performed for contractile and non-contractile periods of labor at the beginning of the second stage, and one representative "angle of progression (AoP)" image was selected for each period...
November 10, 2016: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/27830098/a-pregnancy-with-severe-hypertrophic-obstructive-cardiomyopathy-after-surgery-for-an-implantable-cardioverter-defibrillator-a-case-report-and-literature-review
#11
Takashi Mitsui, Hisashi Masuyama, Kentaro Ejiri, Kei Hayata, Hiroshi Ito, Yuji Hiramatsu
Hypertrophic obstructive cardiomyopathy (HOCM) is cardiac hypertrophy of ventricular myocardium with left ventricular outflow tract obstruction. We report a pregnancy with HOCM after defibrillator implantation surgery. The patient was a 33-year-old nulligravida and was categorized as New York Heart Association class II. Her brain natriuretic peptide (BNP) level was 724.6 pg/dL at preconception. She received careful pregnancy management. However, because frequent uterine contractions were observed at 25 weeks and 6 days of pregnancy, she was hospitalized, and magnesium sulfate was started as a tocolytic agent...
2016: Case Reports in Obstetrics and Gynecology
https://www.readbyqxmd.com/read/27819173/the-effect-of-music-therapy-on-the-cardiac-activity-parameters-of-a-fetus-in-a-cardiotocographic-examination
#12
Grażyna Gebuza, Agnieszka Dombrowska, Marzena Kaźmierczak, Małgorzata Gierszewska, Estera Mieczkowska
OBJECTIVE: The assessment of cardiac parameters of the fetus in cardiotocographic record of pregnant women listening to Classical music. STUDY DESIGN: 60 NST records with no musical stimulation and 30 NST records during a 15-minute auditive stimulation with Wolfgang Amadeus Mozart's "Turkish March" as well as 30 NST records during Johann Strauss's "Tritsch-Tratsch Polka" were performed for the study. The average stage of the responders' pregnancy was the 36rd week, the lowest - the 27th week, the highest - 41st...
November 6, 2016: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/27819066/group-b-streptococcus-circumvents-neutrophils-and-neutrophil-extracellular-traps-during-amniotic-cavity-invasion-and-preterm-labor
#13
Erica Boldenow, Claire Gendrin, Lisa Ngo, Craig Bierle, Jay Vornhagen, Michelle Coleman, Sean Merillat, Blair Armistead, Christopher Whidbey, Varchita Alishetti, Veronica Santana-Ufret, Jason Ogle, Michael Gough, Sengkeo Srinouanprachanh, James W MacDonald, Theo K Bammler, Aasthaa Bansal, H Denny Liggitt, Lakshmi Rajagopal, Kristina M Adams Waldorf
Preterm birth is a leading cause of neonatal morbidity and mortality. Although microbial invasion of the amniotic cavity (MIAC) is associated with the majority of early preterm births, the temporal events that occur during MIAC and preterm labor are not known. Group B Streptococci (GBS) are β-hemolytic, gram-positive bacteria, which commonly colonize the vagina but have been recovered from the amniotic fluid in preterm birth cases. To understand temporal events that occur during MIAC, we utilized a unique chronically catheterized nonhuman primate model that closely emulates human pregnancy...
October 2016: Science Immunology
https://www.readbyqxmd.com/read/27818552/malignant-uterine-disease-with-concurrent-myometrial-contraction-at-mri-a-possible-source-of-overstaging
#14
Sriluxayini Manikkavasakar, Amrutha Ramachandram, Miguel Ramalho, António P Matos, Richard C Semelka
No abstract text is available yet for this article.
September 2016: Radiologia Brasileira
https://www.readbyqxmd.com/read/27816973/tachysystole-following-cervical-ripening-and-induction-of-labor-is-not-associated-with-adverse-outcomes
#15
James A Bofill, Marie M Darby, Javier Castillo, Sandip U Sawardecker, Everett F Magann, John C Morrison
PURPOSE: This study was aimed at determining if significant uterine tachysystole was associated with adverse fetal or neonatal outcomes during cervical ripening and induction of labor. METHODS: Women undergoing cervical ripening and subsequent labor induction (n = 905) were assessed for tachysystole, defined as ≥6 contractions in each of 2 consecutive 10-minute windows. Women with ≥3 episodes of tachysystole were compared to women with no tachysystole. RESULTS: Over a 5-year period, 70% of the 905 participants (n = 631) had no tachysystole, 143 had 1 or 2 episodes whereas 131 or 15% had ≥3 episodes (p = 0...
November 5, 2016: Gynecologic and Obstetric Investigation
https://www.readbyqxmd.com/read/27806671/uterine-activity-during-the-two-hours-after-placental-delivery-among-low-risk-pregnancies-an-observational-study
#16
Yuko Masuzawa, Kataoka Yaeko
OBJECTIVE: The purpose of this study was to describe uterine activity within the first two hours after placental delivery among low-risk pregnant women. MATERIALS AND METHODS: Participants were 17 low-risk pregnant women who had a singleton birth at midwifery birth centers in Japan. Contractile waves of uterine activity were measured by using an external tocodynamometer. RESULTS: Spontaneous uterine contraction frequency during the first two hours after the placental delivery decreased over time (F9, 54 = 19...
November 22, 2016: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/27799081/do-rats-have-orgasms
#17
James G Pfaus, Tina Scardochio, Mayte Parada, Christine Gerson, Gonzalo R Quintana, Genaro A Coria-Avila
BACKGROUND: Although humans experience orgasms with a degree of statistical regularity, they remain among the most enigmatic of sexual responses; difficult to define and even more difficult to study empirically. The question of whether animals experience orgasms is hampered by similar lack of definition and the additional necessity of making inferences from behavioral responses. METHOD: Here we define three behavioral criteria, based on dimensions of the subjective experience of human orgasms described by Mah and Binik, to infer orgasm-like responses (OLRs) in other species: 1) physiological criteria that include pelvic floor and anal muscle contractions that stimulate seminal emission and/or ejaculation in the male, or that stimulate uterine and cervical contractions in the female; 2) short-term behavioral changes that reflect immediate awareness of a pleasurable hedonic reward state during copulation; and 3) long-term behavioral changes that depend on the reward state induced by the OLR, including sexual satiety, the strengthening of patterns of sexual arousal and desire in subsequent copulations, and the generation of conditioned place and partner preferences for contextual and partner-related cues associated with the reward state...
2016: Socioaffective Neuroscience & Psychology
https://www.readbyqxmd.com/read/27788744/-clinical-analysis-of-19-cases-of-pregnant-women-with-rapid-arrhythmia-in-the-treatment-of-radiofrequency-catheter-ablation
#18
L Chu, J Zhang, Y N Li, D Y Long
: Objective: To investigate the risk of radiofrequency catheter ablation and maternal and infant in pregnant women with rapid arrhythmia during pregnancy. Methods: The clinical data of the 19 cases of pregnancy complicated with rapid arrhythmia were retrospectively analyzed and followed up, including the gestational week, the type of arrhythmia, the treatment, and the outcome of the mother and child in Beijing Anzhen Hospital of Capital Medical University from January 2002 to March 2016...
October 25, 2016: Zhonghua Fu Chan Ke za Zhi
https://www.readbyqxmd.com/read/27787232/the-response-of-rat-and-human-uterus-to-oxytocin-from-different-gestational-stages-in-vitro
#19
Mohammed F Alotaibi
Oxytocin (OT) and oxytocin receptors (OTRs) play essential roles in parturition and the effect of OT on uterine contractility is greatly influenced by the expression of OTRs in myometrium. We investigated the effect of OT on uterine strips isolated from non-pregnant, late-pregnant, term-pregnant, and labouring rats and from labouring and non-labouring women. Longitudinal uterine strips (from each gestational stage) were dissected and mounted vertically in an organ bath setup system and challenged with 5 nM OT and the effect was investigated on uterine contractility...
October 27, 2016: General Physiology and Biophysics
https://www.readbyqxmd.com/read/27783611/lactate-in-amniotic-fluid-predictor-of-labor-outcome-in-oxytocin-augmented-primiparas-deliveries
#20
Eva Wiberg-Itzel, Andrea B Pembe, Hans Järnbert-Pettersson, Margareta Norman, Anna-Carin Wihlbäck, Irene Hoesli, Monya Todesco Bernasconi, Elie Azria, Helena Åkerud, Elisabet Darj
BACKGROUND: One of the major complications related to delivery is labor dystocia, or an arrested labor progress. Many dystocic deliveries end vaginally after administration of oxytocin, but a large numbers of women with labor dystocia will undergo a long and unsafe parturition. As a result of the exertion required in labor, the uterus produces lactate. The uterine production of lactate is mirrored by the level of lactate in amniotic fluid (AFL). OBJECTIVES: To evaluate whether the level of AFL, analysed in a sample of amniotic fluid collected vaginally at arrested labor when oxytocin was needed, could predict labor outcome in nulliparous deliveries...
2016: PloS One
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