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https://www.readbyqxmd.com/read/28097362/folic-acid-supplementation-for-the-prevention-of-neural-tube-defects-us-preventive-services-task-force-recommendation-statement
#1
Kirsten Bibbins-Domingo, David C Grossman, Susan J Curry, Karina W Davidson, John W Epling, Francisco A R García, Alex R Kemper, Alex H Krist, Ann E Kurth, C Seth Landefeld, Carol M Mangione, William R Phillips, Maureen G Phipps, Michael P Pignone, Michael Silverstein, Chien-Wen Tseng
Importance: Neural tube defects are among the most common major congenital anomalies in the United States and may lead to a range of disabilities or death. Daily folic acid supplementation in the periconceptional period can prevent neural tube defects. However, most women do not receive the recommended daily intake of folate from diet alone. Objective: To update the 2009 US Preventive Services Task Force (USPSTF) recommendation on folic acid supplementation in women of childbearing age...
January 10, 2017: JAMA: the Journal of the American Medical Association
https://www.readbyqxmd.com/read/28095355/immune-regulatory-network-in-successful-pregnancy-and-reproductive-failures
#2
REVIEW
Mahnaz Ghaebi, Mohammad Nouri, Aliyeh Ghasemzadeh, Laya Farzadi, Farhad Jadidi-Niaragh, Majid Ahmadi, Mehdi Yousefi
Maternal immune system must tolerate semiallogenic fetus to establish and maintain a successful pregnancy. Despite the existence of several strategies of trophoblast to avoid recognition by maternal leukocytes, maternal immune system may react against paternal alloantigenes. Leukocytes are important components in decidua. Not only T helper (Th)1/Th2 balance, but also regulatory T (Treg) cells play an important role in pregnancy. Although the frequency of Tregs is elevated during normal pregnancies, their frequency and function are reduced in reproductive defects such as recurrent miscarriage and preeclampsia...
January 14, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28089327/ceruloplasmin-gene-expression-profile-changes-in-the-rat-mammary-gland-during-pregnancy-lactation-and-involution
#3
Natalia A Platonova, Iurii A Orlov, Sergey A Klotchenko, Victor S Babich, Ekaterina Y Ilyechova, Polina S Babich, Yuri P Garmai, Andrey V Vasin, Nadezhda V Tsymbalenko, Liudmila V Puchkova
Copper metabolism disturbances in mammary gland (MG) cells have severe consequences in newborns. The mechanism that controls the balance of copper in the MG has not been thoroughly characterized. Four primary copper homeostasis genes in mammals: (1) ceruloplasmin (Cp) encoding multifunction multicopper blue (ferr)oxidase; (2) CTR1 encoding high affinity copper importer 1; and (3 and 4) two similar genes encoding Cu(I)/Cu(II)-ATPases P1 type (ATP7A and ATP7B) responsible for copper efflux from the cells and metallation of cuproenzymes formed in the Golgi complex are expressed in MG...
January 3, 2017: Journal of Trace Elements in Medicine and Biology
https://www.readbyqxmd.com/read/28070278/entanglement-is-a-costly-life-history-stage-in-large-whales
#4
Julie van der Hoop, Peter Corkeron, Michael Moore
Individuals store energy to balance deficits in natural cycles; however, unnatural events can also lead to unbalanced energy budgets. Entanglement in fishing gear is one example of an unnatural but relatively common circumstance that imposes energetic demands of a similar order of magnitude and duration of life-history events such as migration and pregnancy in large whales. We present two complementary bioenergetic approaches to estimate the energy associated with entanglement in North Atlantic right whales, and compare these estimates to the natural energetic life history of individual whales...
January 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/28057255/cardiovascular-medicine-and-society-the-pregnant-cardiologist
#5
REVIEW
Amy A Sarma, Chileshe Nkonde-Price, Martha Gulati, Claire S Duvernoy, Sandra J Lewis, Malissa J Wood
Women are a consistent minority in the field of cardiology, with concerns regarding balancing career and parenting responsibilities often cited as a contributing factor to this under-representation. To investigate the impact that a career in cardiology may have on the family planning decisions of female cardiologists, the Women in Cardiology section of the American College of Cardiology conducted a voluntary anonymous survey. The following perspective highlights lessons learned from the survey, and potential solutions to the issues surrounding maternity leave, radiation exposure during pregnancy, and breastfeeding accommodations raised by these data...
January 3, 2017: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/28054230/tumor-necrosis-factor-alpha-and-pregnancy-focus-on-biologics-an-updated-and-comprehensive-review
#6
REVIEW
Jaume Alijotas-Reig, Enrique Esteve-Valverde, Raquel Ferrer-Oliveras, Elisa Llurba, Josep Maria Gris
Tumor necrosis factor-α (TNF-α) is a central regulator of inflammation, and TNF-α antagonists may be effective in treating inflammatory disorders in which TNF-α plays a major pathogenic role. TNF-α has also been associated with inflammatory mechanisms related to implantation, placentation, and pregnancy outcome. TNF-α is secreted by immune cells and works by binding to TNFR1 and TNFR2 cell receptors. TNF-α is also related to JAK/STAT pathways, which opens up hypothetical new targets for modifying. The accurate balance between Th1 cytokines, mainly TNF-α, Th17, and Th2, particularly IL-10 is essential to achieve good obstetric outcomes...
January 4, 2017: Clinical Reviews in Allergy & Immunology
https://www.readbyqxmd.com/read/28049829/glucocorticoid-receptor-in-t-cells-mediates-protection-from-autoimmunity-in-pregnancy
#7
Jan Broder Engler, Nina Kursawe, María Emilia Solano, Kostas Patas, Sabine Wehrmann, Nina Heckmann, Fred Lühder, Holger M Reichardt, Petra Clara Arck, Stefan M Gold, Manuel A Friese
Pregnancy is one of the strongest inducers of immunological tolerance. Disease activity of many autoimmune diseases including multiple sclerosis (MS) is temporarily suppressed by pregnancy, but little is known about the underlying molecular mechanisms. Here, we investigated the endocrine regulation of conventional and regulatory T cells (Tregs) during reproduction. In vitro, we found the pregnancy hormone progesterone to robustly increase Treg frequencies via promiscuous binding to the glucocorticoid receptor (GR) in T cells...
January 10, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28046002/competition-for-materno-fetal-resource-partitioning-in-a-rabbit-model-of-undernourished-pregnancy
#8
Jorge Lopez-Tello, Maria Arias-Alvarez, Maria Angeles Jimenez-Martinez, Rosa Maria Garcia-Garcia, Maria Rodriguez, Pedro Luis Lorenzo Gonzalez, Ruben Bermejo-Poza, Antonio Gonzalez-Bulnes, Pilar Garcia Rebollar
The major goal of animal production is to obtain abundant and healthy meat for consumers. Maternal food restriction (MFR) is often applied in farms to reduce production costs. However, the suitability of MFR in livestock animals is questionable, as this management may compromise maternal fitness due to a severe negative energetic balance and can induce Intrauterine Growth Restriction (IUGR) and prenatal programming in the offspring. Here, we sought to determine, using pregnant rabbits, the consequences of MFR on maternal endocrine and metabolic status and conceptus development...
2017: PloS One
https://www.readbyqxmd.com/read/28043741/exposure-to-benzo-a-pyrene-impairs-decidualization-and-decidual-angiogenesis-in-mice-during-early-pregnancy
#9
Xueyan Li, Cha Shen, Xueqing Liu, Junlin He, Yubin Ding, Rufei Gao, Xinyi Mu, Yanqing Geng, Yingxiong Wang, Xuemei Chen
Benzo[a]pyrene (BaP) is a ubiquitous environmental persistent organic pollutant and a well-known endocrine disruptor. BaP exposure could alter the steroid balance in females. Endometrium decidualization and decidual angiogenesis are critical events for embryo implantation and pregnancy maintenance during early pregnancy and are modulated by steroids. However, the effect of BaP on decidualization is not clear. This study aimed to explore the effects of BaP on decidualization and decidual angiogenesis in pregnant mice...
December 30, 2016: Environmental Pollution
https://www.readbyqxmd.com/read/28042415/chances-to-have-a-boy-after-gender-selection-by-pre-implantation-genetic-screening-are-reduced-in-couples-with-only-girls-and-without-a-boy-sired-by-the-male-partner
#10
Soryya Panahi, Fariba Fahami, Mohammad Reza Deemeh, Marziyeh Tavalaee, Hamid Gourabi, Mohammad Hossain Nasr-Esfahani
BACKGROUND: Gender selection and family planning have their roots in human history. Despite great interest in these fields, very few scientific propositions exist which could explain why some family do not attain the desired sex. Therefore, the aim of this study was to evaluate whether sex of previous child or children could affect the outcomes of pre-implantation genetic screening (PGS). MATERIALS AND METHODS: This historical cohort study including 218 PGS cases referring to Isfahan Fertility and Infertility Center (IFIC)...
January 2017: International Journal of Fertility & Sterility
https://www.readbyqxmd.com/read/28026791/intelligent-non-invasive-diagnosis-of-aneuploidy-raw-values-and-highly-imbalanced-dataset
#11
Andreas Neocleous, Kypros Nicolaides, Christos Schizas
The objective of this work is to introduce a noninvasive diagnosis procedure for aneuploidy and minimize the social and financial cost of prenatal diagnosis tests that are performed for fetal aneuploidies in an early stage of pregnancy. We propose a method using artificial neural networks trained with data from singleton pregnancy cases, while undergoing first trimester screening. Three different datasets1 with a total of 122362 euploid and 967 aneuploid cases were used in this study. The data for each case contained markers collected from the mother and the fetus...
December 22, 2016: IEEE Journal of Biomedical and Health Informatics
https://www.readbyqxmd.com/read/28005240/complicated-pregnancies-in-inherited-distal-renal-tubular-acidosis-importance-of-acid-base-balance
#12
Harald Seeger, Peter Salfeld, Rüdiger Eisel, Carsten A Wagner, Nilufar Mohebbi
Inherited distal renal tubular acidosis (dRTA) is caused by impaired urinary acid excretion resulting in hyperchloremic metabolic acidosis. Although the glomerular filtration rate (GFR) is usually preserved, and hypertension and overt proteinuria are absent, it has to be considered that patients with dRTA also suffer from chronic kidney disease (CKD) with an increased risk for adverse pregnancy-related outcomes. Typical complications of dRTA include severe hypokalemia leading to cardiac arrhythmias and paralysis, nephrolithiasis and nephrocalcinosis...
December 22, 2016: Journal of Nephrology
https://www.readbyqxmd.com/read/27999241/the-expression-of-t-helper-associated-transcription-factors-and-cytokine-genes-in-pre-eclampsia
#13
Behrouz Gharesi-Fard, Fatemeh Mobasher-Nejad, Fatemeh Nasri
BACKGROUND: Pre-eclampsia (PE) is known as a main factor contributing to fetomaternal mortality, which might affect 2-8% of all pregnancies after the twentieth week of gestation. The balance of T helper subsets is essential to sustain a normal pregnancy and preventing fetomaternal complications. OBJECTIVE: To investigate differences in the levels of transcription factors and cytokine gene expression of Th1/Th2/Th17/Treg subsets within decidual and chorionic layers of placentas from 15 PE-afflicted and 15 healthy Iranian women in their third trimester of pregnancy...
December 2016: Iranian Journal of Immunology: IJI
https://www.readbyqxmd.com/read/27996960/recombinant-vascular-endothelial-growth-factor-121-injection-for-the-prevention-of-fetal-growth-restriction-in-a-preeclampsia-mouse-model
#14
Sri Sulistyowati, Muhammad Adrianes Bachnas, Nuri Dyah Anggraini, Eric Edwin Yuliantara, Wisnu Prabowo, Nutria Widya Purna Anggraini, Mochammad Besari Adi Pramono, Adityawarman, Erry Gumilar Dachlan, Wiku Andonotopo
AIM: To discover the potential role of recombinant VEGF121 (rVEGF121) injection for the prevention of fetal growth restriction in a preeclampsia (PE) mouse model (Mus musculus). SUBJECTS AND METHODS: This is an experimental study of 30 pregnant mice that were randomly divided into three groups: normal, PE, and PE with rVEGF121 injection. The PE mouse model was created by injecting anti Qa-2 10 ng iv, which is deleterious to Qa-2 expression (homologous to HLA-G), from the first to the fourth day of gestation...
December 10, 2016: Journal of Perinatal Medicine
https://www.readbyqxmd.com/read/27994875/management-of-metastatic-thyroid-cancer-in-pregnancy-risk-and-uncertainty
#15
Christopher W Rowe, Kirsten Murray, Andrew Woods, Sandeep Gupta, Roger Smith, Katie Wynne
: Metastatic thyroid cancer is an uncommon condition to be present at the time of pregnancy, but presents a challenging paradigm of care. Clinicians must balance the competing interests of long-term maternal health, best achieved by iatrogenic hyperthyroidism, regular radioiodine therapy and avoidance of dietary iodine, against the priority to care for the developing foetus, with inevitable compromise. Additionally, epidemiological and cellular data support the role of oestrogen as a growth factor for benign and malignant thyrocytes, although communicating the magnitude of this risk to patients and caregivers, as well as the uncertain impact of any pregnancy on long-term prognosis, remains challenging...
2016: Endocrinology, Diabetes & Metabolism Case Reports
https://www.readbyqxmd.com/read/27994187/cytogenetic-analysis-in-couples-with-recurrent-miscarriages-a-retrospective-study-from-punjab-north-india
#16
Neha Sudhir, Tajinder Kaur, Archana Beri, Anupam Kaur
Human reproduction is considered as the most inefficient event as ~15-20% of human pregnancies end in miscarriage and in the product of miscarriages, chromosomal anomalies are a common occurrence. The aim of the present retrospective study was to assess the frequency of chromosomal aberrations in couples with recurrent miscarriages in the region of Punjab and to compare with worldwide frequencies. In this study, a total of 440 cases were referred between the period 1995-2015. After lymphocyte culturing, giemsa-trypsin banding was done for each case to assess the chromosomal anomalies...
December 2016: Journal of Genetics
https://www.readbyqxmd.com/read/27990376/management-of-glaucoma-in-pregnancy-risks-or-choices-a-dilemma
#17
REVIEW
Harinder Singh Sethi, Mayuresh Naik, Vishnu Swarup Gupta
The treatment of glaucoma in and around pregnancy offers the unique challenge of balancing the risk of vision loss to the mother as against the potential harm to the fetus or newborn. Most anti-glaucoma drugs (i.e. beta-blockers, prostaglandin analogues, carbonic anhydrase inhibitors topical and systemic, cholinergics, anticholinesterases, and apraclonidine) are considered category C agents and ophthalmologists are usually limited to treating patients with the category B drugs of brimonidine and dipivefrin...
2016: International Journal of Ophthalmology
https://www.readbyqxmd.com/read/27988271/risk-perception-regarding-drug-use-in-pregnancy
#18
Sofia F Widnes, Jan Schjøtt
Pregnant women, but also physicians, have unrealistically high perceptions of teratogenic drug effects. This may result in suboptimal treatment of disease and even influence decisions of whether to continue pregnancy. To attain more realistic teratogenic risk perceptions, several factors that influence this issue should be considered, and these are further discussed in this Clinical Opinion. Importantly, drug use may have several benefits, both for the pregnant woman's health and to avoid negative fetal effects of untreated maternal disease...
December 14, 2016: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/27984183/repeated-prenatal-exposure-to-valproic-acid-results-in-cerebellar-hypoplasia-and-ataxia
#19
Stacey L Main, Randy J Kulesza
Autism spectrum disorder (ASD) is a developmental brain disorder characterized by restricted and repetitive patterns of behavior, social and communication defects, and is commonly associated with difficulties with motor coordination. The etiology of ASD, while mostly idiopathic, has been linked to hereditary factors and teratogens, such as valproic acid (VPA). VPA is used clinically to treat epilepsy, mood disorders, and in the prevention of migraines. The use of VPA during pregnancy significantly increases the risk of ASD in the offspring...
October 27, 2016: Neuroscience
https://www.readbyqxmd.com/read/27976742/increased-fetal-thymocytes-apoptosis-contributes-to-prenatal-nicotine-exposure-induced-th1-th2-imbalance-in-male-offspring-mice
#20
Ting Chen, You-E Yan, Sha Liu, Han-Xiao Liu, Hui-Yi Yan, Li-Fang Hou, Wen Qu, Jie Ping
Nicotine, a definite risk factor during pregnancy, is an immunomodulator. This study was designed to investigate the effects of prenatal nicotine exposure (PNE) on the balance of Th1/Th2 in offspring, and further explore the developmental origin mechanisms from the perspective of fetal thymocytes apoptosis. Pregnant Balb/c mice were administered 1.5 mg/kg nicotine subcutaneously twice per day from gestational day (GD) 9 to GD18. Results showed that PNE could cause a Th2 shift in male offspring, manifested as increased ratio of IgG1/IgG2a, IL-4 production in serum, and IL-4/IFN-γ expression ratio in spleen...
December 15, 2016: Scientific Reports
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