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https://www.readbyqxmd.com/read/28340341/tridimensional-visualization-and-analysis-of-early-human-development
#1
Morgane Belle, David Godefroy, Gérard Couly, Samuel A Malone, Francis Collier, Paolo Giacobini, Alain Chédotal
Generating a precise cellular and molecular cartography of the human embryo is essential to our understanding of the mechanisms of organogenesis in normal and pathological conditions. Here, we have combined whole-mount immunostaining, 3DISCO clearing, and light-sheet imaging to start building a 3D cellular map of the human development during the first trimester of gestation. We provide high-resolution 3D images of the developing peripheral nervous, muscular, vascular, cardiopulmonary, and urogenital systems...
March 23, 2017: Cell
https://www.readbyqxmd.com/read/28339614/integrin-linked-kinase-regulates-syncytialization-of-bewo-trophoblast-cells%C3%A2
#2
Trina M Butler, Justin A Pater, Daniel J MacPhee
During placental development, mononuclear villous cytotrophoblast cells differentiate and fuse with the overlying syncytiotrophoblast. This process requires the dissolution of E-cadherin (CDH1)-containing adherens junctions in cytotrophoblast. Integrin linked kinase (ILK) can downregulate CDH1 through poly (ADP-ribose) polymerase 1 (PARP1) and Snail-1 (SNAI1) during epithelial-mesenchymal transition. ILK is known to be expressed in cytotrophoblast; thus, the role of a potential ILK-PARP1-SNAI1 pathway in aiding trophoblast syncytialization via the downregulation of CDH1 was examined...
January 27, 2017: Biology of Reproduction
https://www.readbyqxmd.com/read/28333321/preconception-and-early-pregnancy-maternal-haemodynamic-changes-in-healthy-women-in-relation-to-pregnancy-viability
#3
F L Foo, A Collins, C M McEniery, P R Bennett, I B Wilkinson, C C Lees
STUDY QUESTION: Are there differences in preconception cardiovascular function between women who have a viable pregnancy and those who have a first trimester miscarriage? SUMMARY ANSWER: Preconception cardiovascular function of central haemodynamics and arterial function are similar between women who have a viable pregnancy and those who have a first trimester miscarriage. WHAT IS KNOWN ALREADY: Miscarriages have been associated with increased long-term cardiovascular disease risk, and arterial and cardiovascular dysfunction has been hypothesised as the common link...
March 16, 2017: Human Reproduction
https://www.readbyqxmd.com/read/28330907/plasma-%C3%AF-3-fatty-acids-in-pregnancy-are-inversely-associated-with-postpartum-weight-retention-in-a-multiethnic-asian-cohort
#4
See Ling Loy, Michelle Jia Hui Ng, Yin Bun Cheung, Keith M Godfrey, Philip C Calder, Ngee Lek, Fabian Yap, Falk Müller-Riemenschneider, Padmapriya Natarajan, Yap-Seng Chong, Kok Hian Tan, Lynette Pei-Chi Shek, Mary Foong-Fong Chong, Jerry Kok Yen Chan
Background: Studies have demonstrated associations between polyunsaturated fatty acids (PUFAs) and adiposity. It is unclear whether PUFAs in pregnancy have an effect on maternal weight retention after childbirth, which can contribute to long-term obesity.Objective: We examined the association of maternal plasma PUFAs in pregnancy with 18-mo postpartum weight retention (PPWR) in a multiethnic Asian cohort.Design: We studied pregnant women (n = 653) recruited between June 2009 and September 2010 from a prospective cohort...
March 22, 2017: American Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/28329946/-a-cohort-study-on-association-between-the-first-trimester-phthalates-exposure-and-fasting-blood-glucose-level-in-the-third-trimester
#5
Y W Zhang, H Gao, K Huang, Y Y Xu, J Sheng, F B Tao
Objective: To examine the association between the phthalate exposure in the first trimester and fasting blood glucose level or gestational diabetes mellitus (GDM) in the third trimester in pregnant women. Methods: A total of 3 474 pregnant women, receiving their prenatal examination in Ma' anshan Maternal and Child Health-Care Hospital of Anhui province, were selected from May 2013 to September 2014. Questionnaires were used to collect the information about their socio-demographic characteristics, clinical characteristics and GDM diagnostic results in the first, second and third trimesters...
March 10, 2017: Zhonghua Liu Xing Bing Xue za Zhi, Zhonghua Liuxingbingxue Zazhi
https://www.readbyqxmd.com/read/28329059/anticoagulation-for-pregnant-women-with-mechanical-heart-valves-a-systematic-review-and-meta-analysis
#6
Rohan D'Souza, Jackie Ostro, Prakesh S Shah, Candice K Silversides, Ann Malinowski, Kellie E Murphy, Mathew Sermer, Nadine Shehata
Aims: To review maternal and foetal outcomes in women with mechanical heart valves (MHVs) treated with vitamin-K antagonists (VKAs), first-trimester heparin followed by VKAs (sequential treatment), low molecular weight heparin (LMWH) and unfractionated heparin (UFH) during pregnancy, in order to inform practice. Methods and results: Medline, Embase and Central were searched from inception until February 2016. Two reviewers independently screened 1786 titles, reviewed 110 full-texts and extracted data and assessed risk-of-bias from 46 articles...
March 9, 2017: European Heart Journal
https://www.readbyqxmd.com/read/28327375/value-of-placental-volume-and-vascular-flow-indices-as-predictors-of-intrauterine-growth-retardation
#7
Nieves L González-González, Enrique González-Dávila, Lidia González Marrero, Erika Padrón, José R Conde, Walter Plasencia
OBJECTIVE: To evaluate the utility of first-trimester placental volume and vascular flow indices to predict intrauterine growth retardation (IUGR). STUDY DESIGN: In 1004 singleton pregnancies attending routine care we recorded maternal characteristics, biophysical and biochemical factors included in the first trimester screening for aneuploidy (FTSA) and uterine artery pulsatility index (PI). Placental volume, Vascularization Index, Flow Index and Vascularization Flow Index were obtained...
March 6, 2017: European Journal of Obstetrics, Gynecology, and Reproductive Biology
https://www.readbyqxmd.com/read/28326648/changes-in-expression-of-the-cd200-tolerance-signaling-molecule-and-its-receptor-cd200r-by-villus-trophoblasts-during-first-trimester-missed-abortion-and-in-chronic-histiocytic-intervillositis
#8
David A Clark, Jennifer M Dmetrichuk, Elizabeth McCready, Sukhbinder Dhesy-Thind, Jorge L Arredondo
PROBLEM: Expression of CD200 at the feto-maternal interface is associated with successful murine and human pregnancy. CD200 binding to CD200 receptors on lymphomyeloid cells suppresses inflammation and induces Tregs. CD200 receptors are also expressed on mouse and human placental trophoblast cells. What is the expression of CD200 and CD200R in human missed abortions which have preserved Treg levels and in chronic histiocytic intervillositis (CHI) where maternal inflammatory cells cause IUGR? METHODS: Immunohistiochemistry for CD200, CD200R, and Ki67 using human placental sections from missed abortions, term placenta, and CHI...
March 22, 2017: American Journal of Reproductive Immunology: AJRI
https://www.readbyqxmd.com/read/28326464/meningiomas-in-pregnancy-timing-of-surgery-and-clinical-outcomes-as-observed-in-104-cases-and-establishment-of-a-best-management-strategy
#9
REVIEW
Yosef Laviv, Ahmed Bayoumi, Anand Mahadevan, Brett Young, Myles Boone, Ekkehard M Kasper
BACKGROUND: There is a strong correlation between the level of circulating female sex hormones and the parturient growth of meningiomas. As a result, rapid changes in meningioma size occur during pregnancy, putting both the mother and fetus at risk. Large, symptomatic meningiomas require surgical resection, regardless of the status of pregnancy. However, the preferred timing of such complex intervention is a matter of debate. The rarity of this clinical scenario and the absence of prospective trials make it difficult to reach evidence-based conclusions...
March 22, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/28325128/iatrogenic-implantation-of-placental-tissue-after-first-trimester-dilatation-and-curettage-presenting-as-a-uterine-mass-a-report-of-two-cases
#10
Nazlı Topfedaisi Özkan, Mustafa Erkan Sarı, Ümit Görkem, Hatice Bayramoğlu, Serap Akbay, Mehmet Mutlu Meydanlı, Tayfun Güngör
No abstract text is available yet for this article.
March 21, 2017: Journal of Obstetrics and Gynaecology: the Journal of the Institute of Obstetrics and Gynaecology
https://www.readbyqxmd.com/read/28324807/parenting-self-efficacy-and-empowerment-among-expectant-mothers-with-substance-use-disorders
#11
Debra H Zand, Jessica L Chou, Kathy J Pierce, Lara B Pennington, Rosalie R Dickens, Jerri Michael, Donna McNamara, Taryn White
OBJECTIVE: to describe parenting self-efficacy and family empowerment among expectant mothers with substance use disorders. DESIGN: the study employed a quantitative cross-sectional design. PARTICIPANTS: participants were 71 pregnant women with substance use disorders entering a gender-specific, substance use disorder, residential treatment facility. MEASUREMENTS: measurement tools included: the demographic data form, the Parenting Sense of Competence Scale, the Addiction Severity Index, and the Family Empowerment Scale...
March 7, 2017: Midwifery
https://www.readbyqxmd.com/read/28323984/trimester-specific-urinary-bisphenol-a-concentrations-and-blood-glucose-levels-among-pregnant-women-from-a-fertility-clinic
#12
Yu-Han Chiu, Lidia Mínguez-Alarcón, Jennifer B Ford, Myra Keller, Ellen W Seely, Carmen Messerlian, John Petrozza, Paige L Williams, Xiaoyun Ye, Antonia M Calafat, Russ Hauser, Tamarra James-Todd
Context: Women with a history of infertility are at increased risk of impaired glucose tolerance during pregnancy. Studies suggest higher urinary bisphenol A (BPA) concentrations are associated with diabetes in non-pregnant populations, but the association between BPA and glucose levels among pregnant women is unclear. Objective: To assess trimester-specific urinary BPA concentrations in relation to blood glucose levels among subfertile women. Design: Environment and Reproductive Health Study, an ongoing prospective cohort study...
January 12, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28323969/early-pregnancy-associated-plasma-protein-a-concentrations-are-associated-with-third-trimester-insulin-sensitivity
#13
Clive J Petry, Ken K Ong, Ieuan A Hughes, Carlo L Acerini, Jan Frystyk, David B Dunger
Context: First or early second trimester pregnancy-associated plasma protein-A (PAPP-A) concentrations have previously been shown to be lower in women who subsequently develop gestational diabetes (GDM) and gestational hypertension. Objective: We therefore sought to investigate why circulating PAPP-A concentrations are related to the subsequent risk of GDM and gestational hypertension. Patients, Design and Setting: We measured serum PAPP-A concentrations around week 15 of pregnancy and related these to indices derived from week 28 oral glucose tolerance tests (OGTT) and blood pressures across pregnancy in the Cambridge Baby Growth Study cohort...
March 13, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28323748/serum-aminotransferase-flares-in-pregnant-and-postpartum-women-with-current-or-prior-treatment-for-chronic-hepatitis-b
#14
Christine Y Chang, Natali Aziz, Mugilan Poongkunran, Asad Javaid, Huy N Trinh, Daryl T Lau, Mindie H Nguyen
BACKGROUND AND AIMS: Antiviral therapy is recommended for pregnant women with chronic hepatitis B (CHB) and hepatitis B virus (HBV) DNA>200,000 IU/mL, but there is less consensus on management of women who discontinue therapy in anticipation of pregnancy or who become pregnant while on therapy. The goal of this study was to describe flares in alanine aminotransferase (ALT) during pregnancy and postpartum in CHB women with current and/or prior treatment. METHODS: This was a multicenter, retrospective study of 67 pregnancies in 56 CHB women treated before and/or during pregnancy...
March 20, 2017: Journal of Clinical Gastroenterology
https://www.readbyqxmd.com/read/28323550/birthweight-as-a-measure-of-holiday-stress
#15
Kitae Sohn
Young wives in South Korea often dread New Year's Day and Thanksgiving Day because they assume the burden of cooking, cleaning, and other household chores. We used their offspring's birthweight as an indicator of their stress levels. We included all Korean singletons born in hospitals during 1997-2014 (N = 8,589,426) and regressed birthweight on in utero holiday experience by trimester, along with covariates. Babies who experienced New Year's Day in the first trimester were 9.4 grams lighter than those who did not; the amount is equivalent to 120% of the reduced birthweight associated with experiencing landmine explosions during the first trimester in Colombia...
March 21, 2017: Women & Health
https://www.readbyqxmd.com/read/28322282/maternal-immune-activation-dysregulation-of-the-fetal-brain-transcriptome-and-relevance-to-the-pathophysiology-of-autism-spectrum-disorder
#16
M V Lombardo, H M Moon, J Su, T D Palmer, E Courchesne, T Pramparo
Maternal immune activation (MIA) via infection during pregnancy is known to increase risk for autism spectrum disorder (ASD). However, it is unclear how MIA disrupts fetal brain gene expression in ways that may explain this increased risk. Here we examine how MIA dysregulates rat fetal brain gene expression (at a time point analogous to the end of the first trimester of human gestation) in ways relevant to ASD-associated pathophysiology. MIA downregulates expression of ASD-associated genes, with the largest enrichments in genes known to harbor rare highly penetrant mutations...
March 21, 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/28321896/does-tea-consumption-during-early-pregnancy-have-an-adverse-effect-on-birth-outcomes
#17
Jin-Hua Lu, Jian-Rong He, Song-Ying Shen, Xue-Ling Wei, Nian-Nian Chen, Ming-Yang Yuan, Lan Qiu, Wei-Dong Li, Qiao-Zhu Chen, Cui-Yue Hu, Hui-Min Xia, Suzanne Bartington, Kar Keung Cheng, Kin Bong Hubert Lam, Xiu Qiu
BACKGROUND: Tea, a common beverage, has been suggested to exhibit a number of health benefits. However, one of its active ingredients, caffeine, has been associated with preterm birth and low birthweight. We investigated whether tea consumption during early pregnancy is associated with an increased risk of preterm birth and abnormal fetal growth. METHODS: A total of 8775 pregnant women were included from the Born in Guangzhou Cohort Study. Tea consumption (type, frequency, and strength) during their first trimester and social and demographic factors were obtained by way of questionnaires administered during pregnancy...
March 21, 2017: Birth
https://www.readbyqxmd.com/read/28320597/racial-or-ethnic-and-socioeconomic-inequalities-in-adherence-to-national-dietary-guidance-in-a-large-cohort-of-us-pregnant-women
#18
Lisa M Bodnar, Hyagriv N Simhan, Corette B Parker, Heather Meier, Brian M Mercer, William A Grobman, David M Haas, Deborah A Wing, Matthew K Hoffman, Samuel Parry, Robert M Silver, George R Saade, Ronald Wapner, Jay D Iams, Pathik D Wadhwa, Michal Elovitz, Alan M Peaceman, Sean Esplin, Shannon Barnes, Uma M Reddy
BACKGROUND: The significance of periconceptional nutrition for optimizing offspring and maternal health and reducing social inequalities warrants greater understanding of diet quality among US women. OBJECTIVE: Our objective was to evaluate racial or ethnic and education inequalities in periconceptional diet quality and sources of energy and micronutrients. DESIGN: Cross-sectional analysis of data from the Nulliparous Pregnancy Outcomes Study: Monitoring Mothers-to-Be cohort...
March 14, 2017: Journal of the Academy of Nutrition and Dietetics
https://www.readbyqxmd.com/read/28320445/risk-factors-for-flare-and-treatment-of-disease-flares-during-pregnancy-in-rheumatoid-arthritis-and-axial-spondyloarthritis-patients
#19
Stephanie van den Brandt, Astrid Zbinden, Dominique Baeten, Peter M Villiger, Monika Østensen, Frauke Förger
BACKGROUND: During pregnancy, patients with rheumatoid arthritis (RA) and axial spondyloarthritis (axSpA) can experience active disease, which might be influenced by adjustment of treatment around conception. The aim of this study was to identify possible risk factors of disease flares during pregnancy and to evaluate the effect of treatment in pregnant patients experiencing a flare. METHODS: Pregnant patients with RA and axSpA were prospectively followed before, during, and after pregnancy...
March 20, 2017: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/28319801/first-trimester-prediction-of-gestational-diabetes-mellitus-a-clinical-model-based-on-maternal-demographic-parameters
#20
Arianne N Sweeting, Heidi Appelblom, Glynis P Ross, Jencia Wong, Heikki Kouru, Paul F Williams, Mikko Sairanen, Jon A Hyett
AIM: Develop a first trimester risk prediction model for GDM based on maternal clinical characteristics in a large metropolitan multi-ethnic population and compare its performance to that of other recently published GDM prediction models and clinical risk scoring systems. METHODS: A retrospective case control study of 248 women who developed GDM and 732 controls who did not. Maternal clinical parameters were prospectively obtained at 11-13(+6) weeks' gestation. A predictive multivariate regression model for GDM was developed, evaluated using areas under the receiver-operating characteristic (AUC) curve...
March 7, 2017: Diabetes Research and Clinical Practice
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