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Mechanical obstetrics

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https://www.readbyqxmd.com/read/29450226/alcohol-reduction-in-the-first-trimester-is-unrelated-to-smoking-patient-or-pregnancy-characteristics
#1
Kristen A Schmidt, Andrew J Lancia, Saad Alvi, Jean C Aldag
Introduction: Studies show alcohol-preferring mice reduce their alcohol intake during pregnancy; this study questions if the same is true for humans. The current investigation compares women's pre-pregnancy and first trimester alcohol consumption, examines if women with problem drinking diminish their alcohol intake during pregnancy, and determines if prenatal alcohol reduction is associated with characteristics of pregnancy, patients or smoking. Methods: 126 participants in weeks 1-12 of pregnancy, recruited from Obstetric and Family Practices, completed a survey during their initial prenatal visit including two gender-specific AUDITs (Alcohol Use Disorders Identification Tests) querying current and pre-pregnancy alcohol use...
June 2017: Addictive Behaviors Reports
https://www.readbyqxmd.com/read/29433462/early-onset-neonatal-hyperkalemia-associated-with-maternal-hypermagnesemia-a-case-report
#2
Kenichi Tanaka, Hiroko Mori, Rieko Sakamoto, Shirou Matsumoto, Hiroshi Mitsubuchi, Kimitoshi Nakamura, Masanori Iwai
BACKGROUND: Neonatal nonoliguric hyperkalemia (NOHK) is a metabolic abnormality that occurs in extremely premature neonates at approximately 24 h after birth and is mainly due to the immature functioning of the sodium (Na + )/potassium (K + ) pump. Magnesium sulfate is frequently used in obstetrical practice to prevent preterm labor and to treat preeclampsia; this medication can also cause hypermagnesemia and hyperkalemia by a mechanism that is different from that of NOHK. Herein, we report the first case of very early-onset neonatal hyperkalemia induced by maternal hypermagnesemia...
February 13, 2018: BMC Pediatrics
https://www.readbyqxmd.com/read/29431903/intimate-partner-violence-sexual-autonomy-and-postpartum-std-prevention-among-young-couples-a-mediation-analysis
#3
Tiara C Willie, Tamora A Callands, Trace S Kershaw
CONTEXT: The transition to parenthood is a stressful time for young couples and can put them at risk for acquiring STDs. Mechanisms underlying this risk-particularly, intimate partner violence (IPV) and sexual autonomy-have not been well studied. METHODS: Between 2007 and 2011, a prospective cohort study of the relationships and health of pregnant adolescents and their male partners recruited 296 couples at four hospital-based obstetrics and gynecology clinics in the U...
February 12, 2018: Perspectives on Sexual and Reproductive Health
https://www.readbyqxmd.com/read/29406317/electrohysterography-in-the-diagnosis-of-preterm-birth-a-review
#4
Javier Garcia-Casado, Yiyao Ye-Lin, Gema Prats-Boluda, Javier Mas-Cabo, José Alberola-Rubio, Alfredo Perales
Preterm birth (PTB) is one of the most common and serious complications in pregnancy. About 15 million preterm neonates are born every year, with ratios of 10-15% of total births. In industrialized countries, preterm delivery is responsible for 70% of mortality and 75% of morbidity in the neonatal period. Diagnostic means for its timely risk assessment are lacking and the underlying physiological mechanisms are unclear. Surface recording of the uterine myoelectrical activity (electrohysterogram, EHG) has emerged as a better uterine dynamics monitoring technique than traditional surface pressure recordings and provides information on the condition of uterine muscle in different obstetrical scenarios with the emphasis on predicting preterm deliveries...
February 6, 2018: Physiological Measurement
https://www.readbyqxmd.com/read/29390102/extracellular-vesicles-in-human-reproduction-in-health-and-disease
#5
C Simon, D W Greening, D Bolumar, N Balaguer, L A Salamonsen, F Vilella
Extensive evidence suggests that the release of membrane enclosed compartments, more commonly known as extracellular vesicles (EVs), is a potent newly identified mechanism of cell-to-cell communication both in normal physiology and in pathological conditions. This article specifically reviews evidence about the formation and release of different EVs, their definitive markers and cargo content in reproductive physiological processes, and their capacity to convey information between cells through the transfer of functional protein and genetic information to alter phenotype and function of recipient cells associated with reproductive biology...
January 30, 2018: Endocrine Reviews
https://www.readbyqxmd.com/read/29387205/mir-144-inhibits-growth-and-metastasis-of-cervical-cancer-cells-by-targeting-vegfa-and-vegfc
#6
Pingping Tao, Hao Wen, Binlie Yang, Ai Zhang, Xiaohua Wu, Qing Li
MicroRNAs (miRs) are aberrantly expressed in various cancer types and have critical roles in their genesis and progression. miR-144 has been identified to be involved in the development of hepatocellular carcinoma and rectal cancer. However, the roles of miR-144 in cervical cancer and the underlying molecular mechanisms have remained elusive. The present study identified that miR-144 was significantly decreased in cervical cancer tissues compared with that in matched normal cervical tissues as well as in metastatic vs...
January 2018: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29385876/antiphospholipid-syndrome-the-best-prophet-of-the-future
#7
Olga Amengual, Tatsuya Atsumi
The antiphospholipid syndrome (APS) is an autoimmune disorder characterized by the occurrence of venous and arterial thromboses, often multiple, and obstetric-related adverse events in the presence of antiphospholipid antibodies (aPL). APS, first described in 1983, as thrombosis, abortion and cerebral disease, is nowadays recognised as a systemic disease with a wide constellation of clinical manifestations related to acute and chronic vascular lesions. The presence of aPL is the serological hallmark of APS representing a heterogeneous population of autoantibodies with many antigenic specificities directed to phospholipid-binding proteins, either alone or in combination with phospholipids...
February 1, 2018: Modern Rheumatology
https://www.readbyqxmd.com/read/29350689/safety-of-intravitreal-injection-of-ranibizumab-in-early-pregnancy-a-series-of-three-cases
#8
P Fossum, C Couret, B Briend, M Weber, L Lagarce
PurposeRanibizumab is used in the treatment of choroidal neovascularization (CNV). Although systemic exposure to ranibizumab is low after ocular administration, its mechanism of action must be regarded as potentially teratogenic and embryo-fetotoxic. Women are advised to wait 3 months after the last dose of treatment with ranibizumab before conceiving. Little is known about the fetal side-effects of this drug.MethodsThree pregnant women were treated with ranibizumab. One patient had idiopathic CNV.ResultsAfter receiving injections at 10 and 21 weeks after her last menstrual period (LMP), she gave birth to a healthy child...
January 19, 2018: Eye
https://www.readbyqxmd.com/read/29341890/periodontal-diseases-and-adverse-pregnancy-outcomes-is-there-a-role-for-vitamin-d
#9
REVIEW
Anne Marie Uwitonze, Peace Uwambaye, Moses Isyagi, Chrispinus H Mumena, Alice Hudder, Afrozul Haq, Kamrun Nessa, Mohammed S Razzaque
Studies have shown a relationship between maternal periodontal diseases (PDs) and premature delivery. PDs are commonly encountered oral diseases which cause progressive damage to the periodontal ligament and alveolar bones, leading to loss of teeth and oral disabilities. PDs also adversely affect general health by worsening cardiovascular and metabolic diseases. Moreover, maternal PDs are thought to be related to increasing the frequency of preterm-birth with low birth weight (PBLBW) new-borns. Prematurity and immaturity are the leading causes of prenatal and infant mortality and is a major public health problem around the world...
January 13, 2018: Journal of Steroid Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/29329728/gene-expression-patterns-associated-with-human-placental-trophoblast-differentiation
#10
Shi-Wen Jiang, Wei Zhou, Jianhao Wang, Lauren M Little, Lynn Leaphart, Jacob Jay, Eseosaserea Igbinigie, Haibin Chen, Jinping Li
Cell fusion is a hallmark of placental trophoblast cell differentiation and the mature syncytiotrophoblasts play essential roles for fetal-maternal exchange and production of pregnancy-related hormones. Using a well-established in vitro trophoblast differentiation model, we performed a microarray analysis on mRNA expression in trophoblast and syncytiotrophoblast cell cultures. Dramatic changes in gene expression patterns were detected during trophoblast differentiation. Real-time PCR analysis confirmed the reliability of the microarray data...
January 9, 2018: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/29304489/clinical-features-and-outcomes-of-tetanus-analysis-using-a-national-inpatient-database-in-japan
#11
Mikio Nakajima, Shotaro Aso, Hiroki Matsui, Kiyohide Fushimi, Hideo Yasunaga
PURPOSE: This study was performed to elucidate the current clinical features and outcomes of tetanus using a national inpatient database in Japan. MATERIALS AND METHODS: We used the Japanese Diagnosis Procedure Combination inpatient database to retrospectively investigate patients with tetanus from July 2010 to March 2016. We examined the patients' characteristics; the proportions of patients requiring tracheal intubation, mechanical ventilation, and tracheostomy; and the discharge status...
December 29, 2017: Journal of Critical Care
https://www.readbyqxmd.com/read/29300932/endometrial-stromal-cell-attachment-and-matrix-homeostasis-in-abdominal-wall-endometriomas
#12
Hiroko Itoh, Haruta Mogami, Laurice Bou Nemer, Larry Word, David Rogers, Rodney Miller, R Ann Word
STUDY QUESTION: How does progesterone alter matrix remodeling in abdominal wall endometriomas compared with normal endometrium? SUMMARY ANSWER: Progesterone may prevent attachment of endometrial cells to the abdominal wall, but does not ameliorate abnormal stromal cell responses of abdominal wall endometriomas. WHAT IS KNOWN ALREADY: Menstruation is a tightly orchestrated physiologic event in which steroid hormones and inflammatory cells cooperatively initiate shedding of the endometrium...
December 28, 2017: Human Reproduction
https://www.readbyqxmd.com/read/29295725/microrna-379-suppresses-cervical-cancer-cell-proliferation-and-invasion-by-directly-targeting-v-crk-avian-sarcoma-virus-ct10-oncogene-homolog-like
#13
Xi Shi, Na Yuan, Shili Zhang, Fukang Yuan, Xiaohong Wang
Cervical cancer is the fourth most common malignancy among females worldwide. MicroRNA-379 (miR-379) is aberrantly expressed in multiple human cancer types. However, the expression pattern, roles and detailed regulatory mechanisms of miR-379 in cervical cancer remain unknown. In this study, we found that miR-379 expression was downregulated in cervical cancer tissues and cell lines. Low miR-379 expression was correlated with International Federation of Gynecology and Obstetrics (FIGO) stage, lymph node metastasis and distant metastasis...
January 2, 2018: Oncology Research
https://www.readbyqxmd.com/read/29259472/birthweights-and-down-syndrome-in-neonates-that-were-delivered-after-frozen-thawed-embryo-transfer-the-2007-2012-japan-society-of-obstetrics-and-gynecology-national-registry-data-in-japan
#14
Kenji Yamatoya, Kazuki Saito, Takakazu Saito, Woojin Kang, Akihiro Nakamura, Mami Miyado, Natsuko Kawano, Yoshitaka Miyamoto, Akihiro Umezawa, Kenji Miyado, Hidekazu Saito
Aim: To evaluate the use of frozen embryos on the outcome of assisted reproductive technology (ART), a retrospective study of the Japanese Assisted Reproductive Technology Registry data during the years 2007-2012 was conducted. Methods: A total of 124 946 singleton neonates who reached term gestation following ART from 2007-2012, with 80 660 achieved through frozen-thawed embryo transfer (ET) and 44 286 being achieved through fresh ET, were analyzed for their birthweights and chromosomal abnormalities...
April 2017: Reproductive Medicine and Biology
https://www.readbyqxmd.com/read/29215847/-pathogenic-peculiarities-of-disseminated-intravascular-coagulation-of-various-ethiology
#15
E V Guzovskaya, S N Serebrennikova
DIC is a severe complication, often resulting in multi-organ failure and fatal outcome. As any syndrome, it is polyethiologic, while a big number of its causes logically leads to various mechanisms of its forming. Main manifestations of the disseminated intravascular blood coagulation syndrome are clottage and haemorrhage. A result of a massive clottage in microcirculatory bed of internal organs is development of dystrophic changes in them and organ failure. Haemorrhage in its turn, results in decreased volume of circulating blood, arterial hypotension and hemic hypoxia, in most severe cases leading to the fatal outcome...
April 2017: Patologicheskaia Fiziologiia i èksperimental'naia Terapiia
https://www.readbyqxmd.com/read/29207789/minerals-in-pregnancy-and-lactation-a-review-article
#16
REVIEW
Samira Khayat, Hamed Fanaei, Abdolhakim Ghanbarzehi
Micronutrients (include vitamins and minerals) are essential for normal function, growth and development. Minerals have important effects on the health of the mother and foetus. But biological mechanisms of minerals are not completely understood. Micronutrient deficiency during pregnancy can lead to anaemia, hypertension, obstetric complications and even maternal death and in foetus lead to a fail in growth and development. Mineral deficiency during pregnancy, particularly exist in developing countries. During pregnancy due to the increased demands caused by physiological changes, deficiency is exaggerated and as a result its complications occur...
September 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/29149877/key-bottlenecks-to-the-provision-of-safe-obstetric-anaesthesia-in-low-income-countries-a-cross-sectional-survey-of-64-hospitals-in-uganda
#17
Isabella Epiu, Agnes Wabule, Andrew Kambugu, Harriet Mayanja-Kizza, Jossy Verel Bahe Tindimwebwa, Gerald Dubowitz
BACKGROUND: Despite recent advances in surgery and anaesthesia which significantly improve safety, many health facilities in low-and middle-income countries (LMICs) remain chronically under-resourced with inability to cope effectively with serious obstetric complications (Knight et al., PLoS One 8:e63846, 2013). As a result many of these countries still have unacceptably high maternal and neonatal mortality rates. Recent data at the national referral hospitals in East Africa reported that none of the national referral hospitals met the World Federation of Societies of Anesthesiologists (WFSA) international standards required to provide safe obstetric anaesthesia (Epiu I: Challenges of Anesthesia in Low-and Middle-Income Countries...
November 17, 2017: BMC Pregnancy and Childbirth
https://www.readbyqxmd.com/read/29130111/microrna-433-inhibits-cervical-cancer-progression-by-directly-targeting-metadherin-to-regulate-the-akt-and-%C3%AE-catenin-signalling-pathways
#18
Changyan Liang, Jie Ding, Yuebo Yang, Liuzhi Deng, Xiaomao Li
Cervical cancer is one of the most common female malignancies worldwide. Emerging data have shown that microRNAs (miRNAs) play significant roles in various human cancers, including cervical cancer. Aberrantly expressed miRNAs in cervical cancer contribute to tumour occurrence and development as either tumour suppressors or promoters. Research suggests that miRNA-433 (miR-433) possibly plays an important role in the development of various cancer types. However, no study has explored the expression patterns, roles and underlying mechanisms of miR-433 in cervical cancer...
December 2017: Oncology Reports
https://www.readbyqxmd.com/read/29119736/yimu-san-improves-obstetric-ability-of-pregnant-mice-by-increasing-serum-oxytocin-levels-and-connexin-43-expression-in-uterine-smooth-muscle
#19
Qi-Huan Wang, Shuang Zhang, Li-Meng Qin, Wen-Jun Zhang, Feng-Hua Liu, Jian-Qin Xu, Yun-Fei Ma, Ke-Dao Teng
Prolonged farrowing remains one of the critical challenges in intensive pig farming. This study aims to explore the effects and mechanism of Yimu San (YMS), a Chinese veterinary medicine micro mist, on delivery ability with mouse models. Thirty-two pregnant mice were randomly divided into a control group and low-YMS, med-YMS, and high-YMS groups. The labor process time and stillbirth rate were recorded, the levels of serum oxytocin and prostaglandin E2 (PGE2) were measured with enzyme-linked immunosorbent assay (ELISA)...
2017: Journal of Zhejiang University. Science. B
https://www.readbyqxmd.com/read/29117653/effect-of-delivery-and-episiotomy-on-the-emergence-of-urinary-incontinence-in-women-review-of-literature
#20
Krešimir Živković, Nikica Živković, Tomislav Župić, Damir Hodžić, Vjekoslav Mandić, Slavko Orešković
Episiotomy is obstetric procedure during which the incision extends the vestibule of the vagina during the second stage of labor. Episiotomy was extensively spread with gradual increase of rates in the first half of the 20th century and was performed medio-laterally in all nulliparous women with the idea to protect fetal head from trauma and pelvic floor from injuries. However, reports claiming that episiotomy had no such benefits were published. It was shown that routine medio-lateral episiotomy did not protect against the appearance of urinary incontinence after vaginal delivery, while the risk of anal incontinence could be increased...
December 2016: Acta Clinica Croatica
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