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https://www.readbyqxmd.com/read/30316433/diagnostic-efficacy-of-blastocoel-fluid-and-spent-media-as-sources-of-dna-for-preimplantation-genetic-testing-in-standard-clinical-conditions
#1
Antonio Capalbo, Valeria Romanelli, Cristina Patassini, Maurizio Poli, Laura Girardi, Adriano Giancani, Marta Stoppa, Danilo Cimadomo, Filippo Maria Ubaldi, Laura Rienzi
OBJECTIVE: To determine whether blastocoel fluid (BF) or spent blastocyst medium (SBM) is a suitable template for genotype and/or karyotype assessment of in vitro fertilization-generated embryos. DESIGN: Prospective blinded study. SETTING: Genetic laboratory. PATIENT(S): From 26 patients undergoing preimplantation genetic testing (PGT) treatments, 103 trophectoderms (TE), 92 BF samples, and 72 SBM samples. INTERVENTION(S): The BF and SBM were retrieved at the time of TE biopsy...
October 2018: Fertility and Sterility
https://www.readbyqxmd.com/read/30184264/prenatal-and-preimplantation-genetic-diagnosis-for-single-gene-disorders-a-population-based-study-from-1977-to-2016
#2
Alice Poulton, Sharon Lewis, Lisa Hui, Jane L Halliday
OBJECTIVE: To examine the statewide utilisation of prenatal diagnosis (PNDx) and preimplantation genetic diagnosis (PGT-M) for single gene disorders. METHODS: Population-based study of all women utilising PNDx in the Australian state of Victoria from 1977 to 2016. Single gene disorders were categorised using a systematic approach that aimed to reflect aspects of the PNDx decision-making process. Data on PGT-M for single gene disorders from 2005 to 2016 were similarly examined for comparison...
September 5, 2018: Prenatal Diagnosis
https://www.readbyqxmd.com/read/30136016/preimplantation-genetic-diagnosis-versus-prenatal-diagnosis-decision-making-among-pregnant-fmr1-premutation-carriers
#3
Lilach Marom Haham, Inbal Avrahami, Noam Domniz, Liat Ries-Levavi, Michal Berkenstadt, Raoul Orvieto, Yoram Cohen, Shai E Elizur
PURPOSE: To detect which factors influence decision-making among pregnant FMR1 premutation carriers regarding the preferred mode of genetic diagnosis: IVF-PGT-M (in vitro fertilization with preimplantation genetic testing for monogenic gene diseases), or CVS (chorionic villus sampling), or AC (amniocentesis) after spontaneous conception. METHODS: In Israel FMR1 premutation preconception genetic screening is offered, free of charge, to every woman in her reproductive years...
August 22, 2018: Journal of Assisted Reproduction and Genetics
https://www.readbyqxmd.com/read/30075839/a-big-step-forward-for-pgt-m
#4
EDITORIAL
Sharyn Stock-Myer, Martin Johnson
No abstract text is available yet for this article.
August 2018: Reproductive Biomedicine Online
https://www.readbyqxmd.com/read/29935659/use-of-preimplantation-genetic-testing-for-monogenic-defects-pgt-m-for-adult-onset-conditions-an-ethics-committee-opinion
#5
(no author information available yet)
Preimplantation genetic testing for monogenic diseases for adult-onset conditions is ethically permissible for a range of conditions including when the condition is serious and no safe, effective interventions are available. The Committee strongly recommends that a genetic counselor experienced with PGT-M counsel patients considering such procedures. This document replaces the document titled "Use of preimplantation genetic diagnosis for serious adult-onset conditions: a committee opinion," last published in Fertil Steril 2013;100;54-7...
June 2018: Fertility and Sterility
https://www.readbyqxmd.com/read/29741247/prenatal-and-preimplantation-diagnosis-of-hemoglobinopathies
#6
REVIEW
C Vrettou, G Kakourou, T Mamas, J Traeger-Synodinos
The hemoglobinopathies, as a group, are one of the most common serious monogenic diseases in the world. An accepted and widely adopted approach to reduce the number of new cases involves carrier-screening programs, with the option of prenatal diagnosis (PND) or preimplantation diagnosis (preimplantation genetic testing for monogenic disease, PGT-M) for carrier couples. The aim of PND is to provide an accurate result as early in pregnancy as possible, which necessitates prior identification of the parental disease-causing mutations, as well as safe and timely biopsy of fetal material...
May 2018: International Journal of Laboratory Hematology
https://www.readbyqxmd.com/read/29471395/origin-and-composition-of-cell-free-dna-in-spent-medium-from-human-embryo-culture-during-preimplantation-development
#7
M Vera-Rodriguez, A Diez-Juan, J Jimenez-Almazan, S Martinez, R Navarro, V Peinado, A Mercader, M Meseguer, D Blesa, I Moreno, D Valbuena, C Rubio, C Simon
STUDY QUESTION: What is the origin and composition of cell-free DNA in human embryo spent culture media? SUMMARY ANSWER: Cell-free DNA from human embryo spent culture media represents a mix of maternal and embryonic DNA, and the mixture can be more complex for mosaic embryos. WHAT IS KNOWN ALREADY: In 2016, ~300 000 human embryos were chromosomally and/or genetically analyzed using preimplantation genetic testing for aneuploidies (PGT-A) or monogenic disorders (PGT-M) before transfer into the uterus...
April 1, 2018: Human Reproduction
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