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Early pregnancy loss

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https://www.readbyqxmd.com/read/28630065/ccr5-is-involved-in-interruption-of-pregnancy-in-mice-infected-with-toxoplasma-gondii-during-early-pregnancy
#1
Maki Nishimura, Kousuke Umeda, Masayuki Suwa, Hidefumi Furuoka, Yoshifumi Nishikawa
Toxoplasmosis can cause abortion in pregnant humans and other animals; however, the mechanism of abortion remains unknown. C-C chemokine receptor type 5 (CCR5) is essential for host defense in T. gondii infection. To investigate the relationship between CCR5 and abortion in toxoplasmosis, we inoculated wild-type and CCR5-deficient (CCR5(-/-)) mice with T. gondii tachyzoites intraperitoneally on day 3 of pregnancy (E3). The pregnancy rate decreased as pregnancy progressed in the infected wild-type mice. Histopathologically, no inflammatory lesions were observed in the fetoplacental tissues...
June 19, 2017: Infection and Immunity
https://www.readbyqxmd.com/read/28629489/eating-down-or-simply-eating-less-the-diet-and-health-implications-of-these-practices-during-pregnancy-and-postpartum-in-rural-bangladesh
#2
Kassandra L Harding, Susana L Matias, Malay K Mridha, Stephen A Vosti, Sohrab Hussain, Kathryn G Dewey, Christine P Stewart
OBJECTIVE: To: (i) determine the prevalence of self-reported eating less and eating down during early and late pregnancy and postpartum, and explore risk factors associated with eating less; (ii) examine the association between eating less and diet quality; and (iii) determine the association between eating less and weight gain during pregnancy. DESIGN: Data were collected longitudinally from a cohort of women participating in a community health programme. Diet was assessed at three time points (≤20 weeks' gestation, 36 weeks' gestation, 6 months' postpartum), body weight was measured during study enrolment (≤20 weeks' gestation) and at 36 weeks' gestation, and information about the woman and her household was collected at enrolment...
June 20, 2017: Public Health Nutrition
https://www.readbyqxmd.com/read/28621046/impact-of-borderline-subclinical-hypothyroidism-on-subsequent-pregnancy-outcome-in-women-with-unexplained-recurrent-pregnancy-loss
#3
Sayaka Uchida, Tetsuo Maruyama, Maki Kagami, Fumie Miki, Hanako Hihara, Satomi Katakura, Yushi Yoshimasa, Hirotaka Masuda, Hiroshi Uchida, Mamoru Tanaka
AIM: Because subclinical hypothyroidism (thyroid-stimulating hormone [TSH] > 4.5 IU/mL) is associated with adverse pregnancy outcome, including early pregnancy loss, TSH is recommended to be titrated to ≤2.5 mIU/L in levothyroxine-treated women before pregnancy. The purpose of this study was to determine whether borderline-subclinical hypothyroidism (borderline-SCH; 2.5 < TSH ≤ 4.5 IU/mL) affects the outcome of subsequent pregnancies in women with unexplained recurrent pregnancy loss (uRPL)...
June 2017: Journal of Obstetrics and Gynaecology Research
https://www.readbyqxmd.com/read/28601159/abnormal-pregnancies-associated-with-deviation-in-progestin-and-estrogen-profiles-in-late-pregnant-mares-a-diagnostic-aid
#4
Mitsumori Shikichi, Katsuroku Iwata, Katsumi Ito, Daisuke Miyakoshi, Harutaka Murase, Fumio Sato, Kenji Korosue, Shunichi Nagata, Yasuo Nambo
Measurement of progestines and estrogens in maternal plasma has been advocated as an indicator of foeto-placental function. The goals of the present study were as follows: to determine progestin and estrogen concentrations in mares with normal and abnormal pregnancies during late gestation, evaluate the diagnostic value of hormone concentrations, and investigate the relationship between hormone concentrations after treatment and the survival of foals. Blood samples were collected monthly from 459 pregnant mares between Day 201 of gestation and foaling...
August 2017: Theriogenology
https://www.readbyqxmd.com/read/28601153/equine-chorionic-gonadotropin-increases-fertility-of-grazing-dairy-cows-that-receive-fixed-time-artificial-insemination-in-the-early-but-not-later-postpartum-period
#5
Alexandre B Prata, Guilherme C S Pontes, Pedro Leopoldo J Monteiro, Jéssica N Drum, Milo C Wiltbank, Roberto Sartori
This study evaluated effects of equine chorionic gonadotropin (eCG) on fertility of 679 crossbred (Bos taurus x Bos indicus) lactating grazing cows synchronized for fixed-time AI (FTAI). At a random day of the estrous cycle cows received an intravaginal progesterone (P4) implant, 2 mg estradiol benzoate (EB) and 100 μg gonadorelin (D0-AM). On D7-AM, cows received 0.5 mg sodium cloprostenol and were randomly assigned into two treatments: eCG (n = 340; 400 IU eCG on D7), or Control (n = 339; no eCG). On D8-PM, P4 implants were removed and cows received 0...
August 2017: Theriogenology
https://www.readbyqxmd.com/read/28593919/effects-of-interleukin-1-receptor-antagonist-il-1ra-gene-86-bp-vntr-polymorphism-on-recurrent-pregnancy-loss-a-case-control-study
#6
Yasamin Sayed Hajizadeh, Elina Emami, Marina Nottagh, Zahra Amini, Nazila Fathi Maroufi, Saba Haj Azimian, Alireza Isazadeh
Objective Recurrent pregnancy loss (RPL) is a heterogeneous disease which is defined as two or more consecutive fetal losses during early pregnancy. Interleukin-1 receptor antagonist (IL-1Ra) is a anti-inflammatory cytokine, which inhibits IL-1 activity by binding to its receptors. The aim of this study was to investigate the association between RPL and IL-1Ra intron 2 polymorphism (86 bp VNTR) in Iranian women. Materials and methods In this case control study, genetic polymorphism was studied in 140 RPL patients and 140 healthy women as controls...
May 26, 2017: Hormone Molecular Biology and Clinical Investigation
https://www.readbyqxmd.com/read/28591761/prospective-cohort-study-of-uterine-fibroids-and-miscarriage-risk
#7
Katherine E Hartmann, Digna R Velez Edwards, David A Savitz, Michele L Jonsson-Funk, Pingsheng Wu, Alexandra C Sundermann, Donna D Baird
We sought to determine the relationship of fibroids to pregnancy loss in a prospective cohort in which fibroid status was uniformly documented in early pregnancy. Participants had an intake interview, transvaginal ultrasonography, computer-assisted telephone interview, and follow-up assessment of outcomes. We recruited diverse participants for the Right From the Start study from 8 metropolitan areas in 3 states in the United States during 2000-2012. Participants were at least 18 years of age, trying to become pregnant or at less than 12 weeks' gestation, not using fertility treatments, fluent in English or Spanish, and available for telephone interviews...
June 7, 2017: American Journal of Epidemiology
https://www.readbyqxmd.com/read/28555358/complex-chromosomal-rearrangement-a-lesson-learned-from-pgs
#8
Tsvia Frumkin, Sagit Peleg, Veronica Gold, Adi Reches, Shiri Asaf, Foad Azem, Dalit Ben-Yosef, Mira Malcov
PURPOSE: The aim of the study is to report a case of non-diagnosed complex chromosomal rearrangement (CCR) identified by preimplantation genetic screening (PGS) followed by preimplantation genetic diagnosis (PGD) which resulted in a pregnancy and delivery of healthy offspring. METHODS: A 29-year-old woman and her spouse, both diagnosed previously with normal karyotypes, approached our IVF-PGD center following eight early spontaneous miscarriages. PGS using chromosomal microarray analysis (CMA) was performed on biopsied trophectoderm...
May 29, 2017: Journal of Assisted Reproduction and Genetics
https://www.readbyqxmd.com/read/28552246/the-incidence-of-long-heterochromatic-polymorphism-variants-in-infants-conceived-through-assisted-reproductive-technologies
#9
Andrew Wilson, Katherine Watt, Sai Ma
Long heterochromatic variants on chromosomes 1, 9, 16 and Y are suspected to be implicated in infertility and early pregnancy loss, but little is known about how these variants are inherited in children conceived by infertile couples through assisted reproductive technologies. In this case-control study, the incidence of these variants was compared between infants conceived using intracytoplasmic sperm injection (ICSI), IVF and natural intercourse by karyotyping lymphocytes from cord blood or peripheral blood...
May 15, 2017: Reproductive Biomedicine Online
https://www.readbyqxmd.com/read/28540180/hemoglobin-and-mean-platelet-volume-predicts-diffuse-t1-mri-white-matter-volume-decrease-in-sickle-cell-disease-patients
#10
Soyoung Choi, Adam M Bush, Matthew T Borzage, Anand A Joshi, William J Mack, Thomas D Coates, Richard M Leahy, John C Wood
Sickle cell disease (SCD) is a life-threatening genetic condition. Patients suffer from chronic systemic and cerebral vascular disease that leads to early and cumulative neurological damage. Few studies have quantified the effects of this disease on brain morphometry and even fewer efforts have been devoted to older patients despite the progressive nature of the disease. This study quantifies global and regional brain volumes in adolescent and young adult patients with SCD and racially matched controls with the aim of distinguishing between age related changes associated with normal brain maturation and damage from sickle cell disease...
2017: NeuroImage: Clinical
https://www.readbyqxmd.com/read/28537237/-comparative-results-of-preimplantation-genetic-screening-by-array-comparative-genomic-hybridization-and-new-generation-sequencing
#11
N V Aleksandrova, E S Shubina, A N Ekimov, T A Kodyleva, I S Mukosey, N P Makarova, E V Kulakova, L A Levkov, I Yu Barkov, D Yu Trofimov, G T Sukhikh
Aneuploidies as quantitative chromosome abnormalities are a main cause of failed development of morphologically normal embryos, implantation failures, and early reproductive losses. Preimplantation genetic screening (PGS) allows a preselection of embryos with a normal karyotype, thus increasing the implantation rate and reducing the frequency of early pregnancy loss after IVF. Modern PGS technologies are based on a genome-wide analysis of the embryo. The first pilot study in Russia was performed to assess the possibility of using semiconductor new-generation sequencing (NGS) as a PGS method...
March 2017: Molekuliarnaia Biologiia
https://www.readbyqxmd.com/read/28533329/pregnancy-outcome-after-first-trimester-use-of-methyldopa-a-prospective-cohort-study
#12
Maria Hoeltzenbein, Evelin Beck, Anne-Katrin Fietz, Juliane Wernicke, Sandra Zinke, Angela Kayser, Stephanie Padberg, Corinna Weber-Schoendorfer, Reinhard Meister, Christof Schaefer
Published experience on first trimester exposure to methyldopa is still limited, although it is recommended as first-line treatment for hypertensive disorders in pregnancy in most countries. The primary aim of this prospective observational cohort study was to analyze the rate of major birth defects and spontaneous abortions in women with methyldopa therapy for chronic hypertension. Outcomes of 261 pregnancies with first trimester exposure to methyldopa and 526 comparison pregnancies without chronic hypertension reported to the German Embryotox pharmacovigilance institute were evaluated...
July 2017: Hypertension
https://www.readbyqxmd.com/read/28529452/estradiol-suppresses-tlr4-triggered-apoptosis-of-decidual-stromal-cells-and-drives-an-anti-inflammatory-th2-shift-by-activating-sgk1
#13
Yiyun Lou, Minhao Hu, Qijing Wang, Mu Yuan, Ning Wang, Fang Le, Lejun Li, Shisi Huang, Liya Wang, Xiangrong Xu, Fan Jin
A pro-inflammatory cytokine profile at the feto-maternal interface may predispose immune maladaptation notably in early miscarriages. We investigated the involvement of estradiol (E2)-activated serum-glucocorticoid regulated kinase 1 (SGK1) in preserving the tolerogenic and pro-survival intrauterine microenvironment beneficial to gestation maintenance. Decidual SGK1 was down-regulated in early miscarriage, consistent with the lower serum E2 concentration seen in pregnancy loss. Lipopolysaccharide (LPS)/Toll-like receptors 4 (TLR4) signaling induced apoptosis and the pro-inflammatory T helper type (TH) 1 response of decidual stromal cells (DSCs) were associated with miscarriage...
2017: International Journal of Biological Sciences
https://www.readbyqxmd.com/read/28529323/an-immunogenic-phenotype-in-paternal-antigen-specific-cd8-t-cells-at-embryo-implantation-elicits-later-fetal-loss-in-mice
#14
Lachlan M Moldenhauer, Kerrilyn R Diener, John D Hayball, Sarah A Robertson
Central to pregnancy success is a state of T cell tolerance to paternal antigens, which is initiated at conception. The role and regulation of specific phenotypes of CD8(+) T cells in mediating pregnancy tolerance is not clear. This study aimed to investigate the impact on pregnancy outcome of altering the cytokine environment during maternal CD8(+) T cell priming in early pregnancy. Transgenic Act-mOVA male mice were mated to C57BL/6 (B6) females to generate fetuses expressing ovalbumin (OVA) as a model paternal antigen...
May 22, 2017: Immunology and Cell Biology
https://www.readbyqxmd.com/read/28526846/nk-cell-derived-il-10-is-critical-for-dc-nk-cell-dialogue-at-the-maternal-fetal-interface
#15
Sandra M Blois, Nancy Freitag, Irene Tirado-González, Shi-Bin Cheng, Markus M Heimesaat, Stefan Bereswill, Matthias Rose, Melanie L Conrad, Gabriela Barrientos, Surendra Sharma
DC-NK cell interactions are thought to influence the development of maternal tolerance and de novo angiogenesis during early gestation. However, it is unclear which mechanism ensures the cooperative dialogue between DC and NK cells at the feto-maternal interface. In this article, we show that uterine NK cells are the key source of IL-10 that is required to regulate DC phenotype and pregnancy success. Upon in vivo expansion of DC during early gestation, NK cells expressed increased levels of IL-10. Exogenous administration of IL-10 was sufficient to overcome early pregnancy failure in dams treated to achieve simultaneous DC expansion and NK cell depletion...
May 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28526167/significance-of-body-weight-change-during-fertility-sparing-progestin-therapy-in-young-women-with-early-endometrial-cancer
#16
Jeong-Yeol Park, Seok Ju Seong, Tae-Jin Kim, Jae Weon Kim, Duk-Soo Bae, Joo-Hyun Nam
OBJECTIVE: To evaluate the influence of body weight change during fertility-sparing progestin therapy on oncologic and reproductive outcomes in young women with early-stage endometrial cancer who did not complete child bearing. METHODS: This multicenter, retrospective study included 154 young patients with well-differentiated, endometrium-confined endometrioid endometrial adenocarcinoma on magnetic resonance imaging who received fertility-sparing progestin therapy...
May 16, 2017: Gynecologic Oncology
https://www.readbyqxmd.com/read/28523564/prenatal-and-early-postnatal-environmental-enrichment-reduce-acute-cell-death-and-prevent-neurodevelopment-and-memory-impairments-in-rats-submitted-to-neonatal-hypoxia-ischemia
#17
L E Durán-Carabali, D M Arcego, F K Odorcyk, L Reichert, J L Cordeiro, E F Sanches, L D Freitas, C Dalmaz, A Pagnussat, C A Netto
Environmental enrichment (EE) is an experimental strategy to attenuate the negative effects of different neurological conditions including neonatal hypoxia ischemia encephalopathy (HIE). The aim of the present study was to investigate the influence of prenatal and early postnatal EE in animals submitted to neonatal HIE model at postnatal day (PND) 3. Wistar rats were housed in EE or standard conditions (SC) during pregnancy and lactation periods. Pups of both sexes were assigned to one of four experimental groups, considering the early environmental conditions and the injury: SC-Sham, SC-HIE, EE-sham, and EE-HIE...
May 18, 2017: Molecular Neurobiology
https://www.readbyqxmd.com/read/28502760/patterns-of-gestational-weight-gain-and-birthweight-outcomes-in-the-eunice-kennedy-shriver-national-institute-of-child-health-and-human-development-fetal-growth-studies-singletons-a-prospective-study
#18
Sarah J Pugh, Paul S Albert, Sungduk Kim, William Grobman, Stefanie N Hinkle, Roger B Newman, Deborah A Wing, Katherine L Grantz
BACKGROUND: Inadequate or excessive total gestational weight gain is associated with increased risks of small- and large-for-gestational-age births, respectively, but evidence is sparse regarding overall and trimester-specific patterns of gestational weight gain in relation to these risks. Characterizing the interrelationship between patterns of gestational weight gain across trimesters can reveal whether the trajectory of gestational weight gain in the first trimester sets the path for gestational weight gain in subsequent trimesters, thereby serving as an early marker for at-risk pregnancies...
May 11, 2017: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28501364/immune-modulation-treatments-where-is%C3%A2-the-evidence
#19
REVIEW
Malene Meisner Hviid, Nick Macklon
While advances in assisted reproductive techniques have been substantial, failure of the apparently viable embryo to implant remains a source of distress and frustration to patients and specialists alike. The unique maternal immunological response to the embryo and the notion that defects in early placentation underlie the great complications of pregnancy have focused attention on the therapeutic potential of peri-implantation immunomodulation. On the face of it, the rationale for this approach is very attractive...
June 2017: Fertility and Sterility
https://www.readbyqxmd.com/read/28500757/meta-analysis-of-the-effect-of-the-maternal-vitamin-d-level-on-the-risk-of-spontaneous-pregnancy-loss
#20
REVIEW
Heng Zhang, Zhaohui Huang, Limin Xiao, Xinye Jiang, Daozhen Chen, Yarong Wei
BACKGROUND: The association between vitamin D deficiency and early spontaneous pregnancy loss (SPL) is unclear. OBJECTIVES: To assess the association of serum 25-hydroxyvitamin D (25(OH)D) and SPL. SEARCH STRATEGY: Embase, PubMed, and Web of Science were searched for relevant papers published before February 20, 2016, using search terms including "vitamin D" and "pregnancy loss." SELECTION CRITERIA: Case-control and cohort studies investigating the relationship of maternal serum 25(OH)D and SPL were included...
May 13, 2017: International Journal of Gynaecology and Obstetrics
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