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immunology problem of abortion in first trimester

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https://www.readbyqxmd.com/read/21314851/low-circulating-cd4-cd25-foxp3-t-regulatory-cell-levels-predict-miscarriage-risk-in-newly-pregnant-women-with-a-history-of-failure
#1
Edward E Winger, Jane L Reed
PROBLEM  The purpose of this study was to determine whether quantification of peripheral blood Treg cell levels could be used as an indicator of miscarriage risk in newly pregnant women with a history of immunologic reproductive failure. METHOD OF STUDY  Fifty-four pregnant women with a history of immunologic infertility and/or pregnancy loss were retrospectively evaluated (mean age: 36.7 ± 4.9 years, 2.8 ± 2.5 previous miscarriages; 1.5 ± 1.9 previous IVF failures). Twenty-three of these women experienced another first trimester miscarriage, and 31 of these women continued their current pregnancies past 12 weeks ('pregnancy success')...
October 2011: American Journal of Reproductive Immunology: AJRI
https://www.readbyqxmd.com/read/19903030/impact-of-first-trimester-and-postpartum-period-thyroid-autoantibodies-on-abortus-incidence-in-turkish-pregnant-women
#2
Kerem Sezer, Nuri Kamel, Cihat Unlu, Hatice Kansu Celik
OBJECTIVE: Abortus is a common problem and is observed approximately in one third of all pregnancies. In this study, we aimed to evaluate in euthyroid pregnant population the effect of thyroid autoantibodies of both first trimester and postpartum period on abortus incidence. DESIGN AND METHOD: Euthyroid 128 pregnant women were included in the study. All pregnants were required having a history of maximum one abortus without any previous endocrinological, immunological disorders...
June 2009: Gynecological Endocrinology
https://www.readbyqxmd.com/read/12297538/decidual-lymphocytes-of-human-spontaneous-abortions-induce-apoptosis-but-not-necrosis-in-jeg-3-extravillous-trophoblast-cells
#3
Enrique G Olivares, Raquel Muñoz, Germán Tejerizo, María José Montes, Francisca Gómez-Molina, Ana Clara Abadía-Molina
The human decidua contains an unusually high proportion of lymphocytes, mainly NK and T cells, which are potentially cytotoxic to the trophoblast when they are stimulated with certain cytokines. Given the high incidence of spontaneous abortion in humans and other species, our working hypothesis is that decidual lymphocytes are involved in immunological mechanisms that attack the trophoblast and induce abortion when any gestational problem arises. To test this hypothesis, flow cytometry was used to compare decidual lymphocyte populations in first-trimester spontaneous abortions and elective terminations of first-trimester pregnancy...
October 2002: Biology of Reproduction
https://www.readbyqxmd.com/read/9616879/antiphospholipid-antibodies-and-reproductive-outcome-the-current-state-of-affairs
#4
REVIEW
D W Branch
Antiphospholipid antibodies were first linked to pregnancy loss more than 20 years ago, and the condition known as antiphospholipid syndrome is perhaps the most convincing 'immunologic' disturbance other than anti-erythrocyte and anti-platelet alloimmunization disorders. Specific criteria for the antiphospholipid syndrome have been delineated, the anticardiolipin assay has been standardized, and authorities agree on laboratory criteria defining lupus anticoagulant. Nonetheless, considerable confusion exists regarding antiphospholipid syndrome and related reproductive problems...
April 1998: Journal of Reproductive Immunology
https://www.readbyqxmd.com/read/3885098/abnormal-placentation
#5
REVIEW
W B Robertson, I Brosens, W N Landells
It is only relatively recently that attention has been directed to studies of the uterine side of the placenta to look for possible defects that might explain otherwise inexplicable pregnancy complications. Preeclampsia and intrauterine fetal growth retardation are two such disorders, in which new information has come to light by the study of placental bed biopsies and occasional cesarean hysterectomy specimens. It will be less easy to apply these techniques to such problems as spontaneous abortion and antepartum hemorrhage, but reemphasizing what should be the self-evident importance of the establishment and development of the uteroplacental blood supply might help reorient thinking about these and other important complications of pregnancy...
1985: Obstetrics and Gynecology Annual
https://www.readbyqxmd.com/read/3354549/evaluation-of-methods-for-the-prospective-identification-of-early-fetal-losses-in-environmental-epidemiology-studies
#6
A M Sweeney, M R Meyer, J H Aarons, J L Mills, R E LaPorte
A major problem in the epidemiologic investigation of early fetal losses has been incomplete or biased ascertainment. In order to assess early fetal losses more accurately, one must first develop a simple method to identify early pregnancy. This study, conducted at the University of Pittsburgh from October 1985 through October 1986, has developed such a method through the use of monoclonal antibody urine pregnancy testing kits. A total of 88 volunteers collected urine samples beginning on the seventh postovulatory day and continued until either menses occurred or a serum radioimmunoassay pregnancy test was performed on day 16...
April 1988: American Journal of Epidemiology
https://www.readbyqxmd.com/read/3073445/-recurrent-spontaneous-abortions
#7
REVIEW
J Salat-Baroux
The process of fertilization in humans, is remarkably inefficient. Spontaneous abortion is estimated to be between 15 and 20% of all clinical pregnancies, and the early spontaneous abortion rate is closer to 30-50% of fertilized ova. Not all authors agree on the definition of "recurrent spontaneous abortion" (RSA), so the frequency of repeated pregnancy wastage is difficult to determine; from empirically derived data, it has been estimated to range between 0.4 and 0.8%. Because of the various etiologies of RSA, their association in determining an abortive event, it is difficult to evaluate their exact incidence...
1988: Reproduction, Nutrition, Development
https://www.readbyqxmd.com/read/1943894/outcome-of-1500-consecutive-chorionic-villus-samplings
#8
J C Anderson, A Smith, R J Trent, A Boogert, D A Ellwood
OBJECTIVE: To evaluate the clinical complications and diagnostic problems of chorionic villus sampling. DESIGN: A pragmatic retrospective analysis. SETTING: Tertiary obstetric referrals mostly to private practice; sampling carried out at Royal Prince Alfred Hospital; diagnostic analysis usually at Oliver Latham Laboratory, or the Clinical Immunology Research Centre, Royal Prince Alfred Hospital, New South Wales. PATIENTS: 1500 women in the first trimester of pregnancy requesting prenatal diagnosis because of a risk of chromosomal or inherited genetic disorder in the fetus...
November 18, 1991: Medical Journal of Australia
https://www.readbyqxmd.com/read/1720752/-rate-of-early-abortion-after-in-vitro-fertilization-and-embryo-transfer
#9
M Mesrogli, U Nitsche, D H Maas, F Degenhardt, S Dieterle, H W Schlösser
The high rate of implantation failures in infertile patients after in vitro fertilization must be regarded as the major problem of the kind of treatment. Usually, no information on the development of the embryo can be obtained for the time between embryo replacement and rising beta-hCG levels. Own studies on the early pregnancy factor (EPF) showed a positive reaction few hours following the contact of a fertilized oocyte with the endometrial surface. Therefore, we used the EPF as a marker for the viability of the embryo in 82 patients after in vitro fertilization and embryo transfer...
September 1991: Geburtshilfe und Frauenheilkunde
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