0000000000424657

AUTHOR

Alberto Ramírez

showing 2 related works from this author

First trimester biochemical screening for Down's syndrome in singleton pregnancies conceived by assisted reproduction

2005

BACKGROUND: Serum biochemical markers [free betahCG (fbetahCG); pregnancy-associated plasma protein-A (PAPP-A)] used in first trimester Down's syndrome screening have not been fully investigated in pregnancies achieved by assisted reproduction techniques. We present data on pregnancies conceived by all types of assisted reproduction techniques, including pregnancies following ovum donation (OD) and a large sample by ICSI. METHODS: First trimester Down's syndrome screening was performed in 1054 normal singleton pregnancies: natural conception (n = 498), ovulation induction (OS, n = 97), IVF (n = 47), ICSI (n = 222) and OD (n = 190). RESULTS: No differences in maternal levels of fbetahCG and …

Down syndromemedicine.medical_specialtyReproductive Techniques AssistedPregnancy-associated plasma protein Amedicine.medical_treatmentPrenatal diagnosisBiologyPreimplantation genetic diagnosisEmbryo cryopreservationPregnancyPrenatal DiagnosismedicineHumansChorionic Gonadotropin beta Subunit HumanFalse Positive ReactionsGynecologyPregnancyurogenital systemObstetricsRehabilitationReproducibility of ResultsObstetrics and GynecologyGestational agemedicine.diseasePregnancy Trimester FirstReproductive MedicineFemaleOvulation inductionDown SyndromeBiomarkersHuman Reproduction
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The role of thrombophilia and thyroid autoimmunity in unexplained infertility, implantation failure and recurrent spontaneous abortion.

2007

The role of thrombophilia and thyroid autoimmunity in unexplained infertility (UI), implantation failure (IF) and recurrent spontaneous abortion (RSA) is controversial and poorly understood.From March, 2004 to January, 2007, 119 women were prospectively included: 32 oocyte donors, 31 patients with UI, 26 with IF and 30 with RSA. The IF and RSA groups presented normal preimplantation genetic screening. Protein C, protein S, antithrombin III, lupus anticoagulant, activated protein C resistance (APCR), immunoglobulin M and G anticardiolipin antibodies, homocystine, Factor V Leiden, prothrombin G20210A mutation, methylentetrahydrofolate reductase C677T mutation, thyroid-stimulating hormone (TSH…

Adultendocrine systemmedicine.medical_specialtyAbortion Habitualmedicine.medical_treatmentThyroid GlandAutoimmunityThrombophiliaGastroenterologyIodide PeroxidaseThyroglobulinAntiphospholipid syndromeInternal medicinemedicineFactor V LeidenPrevalenceHumansThrombophiliaEmbryo ImplantationProspective StudiesUnexplained infertilityActivated Protein C ResistanceAutoantibodiesLupus anticoagulantbusiness.industryRehabilitationThyroidObstetrics and Gynecologymedicine.diseaseEndocrinologymedicine.anatomical_structureReproductive MedicineLupus Coagulation InhibitorThyroglobulinFemaleActivated protein C resistancebusinessInfertility FemaleHuman reproduction (Oxford, England)
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