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Vizitiu AC, Stambouli D, Pavel AG, Muresan MC, Anastasiu DM, Bejinar C, Alexa A, Marian C, Sirbu IO, Sima L. Mature miR-99a Upregulation in the Amniotic Fluid Samples from Female Fetus Down Syndrome Pregnancies: A Pilot Study. ACTA ACUST UNITED AC 2019; 55:medicina55110728. [PMID: 31703316 PMCID: PMC6915350 DOI: 10.3390/medicina55110728] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Revised: 10/25/2019] [Accepted: 11/05/2019] [Indexed: 02/07/2023]
Abstract
Background and Objective: Although Down syndrome is the most frequent aneuploidy, its pathogenic molecular mechanisms are not yet fully understood. The aim of our study is to quantify-by qRT-PCR-the expression levels of both the mature forms and the pri-miRNAs of the microRNAs resident on chromosome 21 (miR(21)) in the amniotic fluid samples from Down syndrome singleton pregnancies and to estimate the impact of the differentially expressed microRNAs on Down syndrome fetal heart and amniocytes transcriptomes. Materials and methods: We collected amniotic fluid samples harvested by trained obstetricians as part of the second trimester screening/diagnostic procedure for aneuploidies to assess the trisomy 21 status by QF-PCR and karyotyping. Next, we evaluated-by Taqman qRT-PCR-the expression levels of both the mature forms and the pri-miRNA precursors of the microRNAs resident on chromosome 21 in amniotic fluid samples from singleton Down syndrome and euploid pregnancies. Further, we combined miRWalk 3.0 microRNA target prediction with GEO DataSets analysis to estimate the impact of hsa-miR-99a abnormal expression on Down syndrome heart and amniocytes transcriptome. Results: We found a statistically significant up-regulation of the mature form of miR-99a, but not pri-miR-99a, in the amniotic fluid samples from Down syndrome pregnancies with female fetuses. GATHER functional enrichment analysis of miRWalk3.0-predicted targets from Down syndrome amniocytes and fetal hearts transcriptome GEODataSets outlined both focal adhesion and cytokine-cytokine receptor interaction signaling as novel signaling pathways impacted by miR-99a and associated with cardiac defects in female Down syndrome patients. Conclusions: The significant overexpression of miR-99a, but not pri-miR-99a, points towards an alteration of the post-transcriptional mechanisms of hsa-miR-99a maturation and/or stability in the female trisomic milieu, with a potential impact on signaling pathways important for proper development of the heart.
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Affiliation(s)
- Anda-Cornelia Vizitiu
- Doctoral School, Victor Babes University of Medicine and Pharmacy Timisoara, Eftimie Murgu Nr. 2, Timisoara 300041, Romania;
| | - Danae Stambouli
- CytoGenomic Medical Laboratory, Calea Floreasca Nr. 35, Sector 1, Bucharest 014451, Romania; (D.S.); (A.-G.P.)
| | - Anca-Gabriela Pavel
- CytoGenomic Medical Laboratory, Calea Floreasca Nr. 35, Sector 1, Bucharest 014451, Romania; (D.S.); (A.-G.P.)
| | - Maria-Cezara Muresan
- Obstetrics and Gynecology Department, Victor Babes University of Medicine and Pharmacy, Eftimie Murgu Nr. 2, Timisoara 300041, Romania (D.M.A.)
| | - Diana Maria Anastasiu
- Obstetrics and Gynecology Department, Victor Babes University of Medicine and Pharmacy, Eftimie Murgu Nr. 2, Timisoara 300041, Romania (D.M.A.)
| | - Cristina Bejinar
- Biochemistry Department, Victor Babes University of Medicine and Pharmacy, Eftimie Murgu Nr. 2, Timisoara 300041, Romania; (C.B.); (A.A.); (C.M.)
| | - Anda Alexa
- Biochemistry Department, Victor Babes University of Medicine and Pharmacy, Eftimie Murgu Nr. 2, Timisoara 300041, Romania; (C.B.); (A.A.); (C.M.)
| | - Catalin Marian
- Biochemistry Department, Victor Babes University of Medicine and Pharmacy, Eftimie Murgu Nr. 2, Timisoara 300041, Romania; (C.B.); (A.A.); (C.M.)
| | - Ioan Ovidiu Sirbu
- Biochemistry Department, Victor Babes University of Medicine and Pharmacy, Eftimie Murgu Nr. 2, Timisoara 300041, Romania; (C.B.); (A.A.); (C.M.)
- Correspondence: ; Tel.: +40-756-136-272
| | - Laurentiu Sima
- Surgical Semiology Department, Victor Babes University of Medicine and Pharmacy, Eftimie Murgu Nr. 2, Timisoara 300041, Romania;
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Laberge AM, Birko S, Lemoine MÈ, Le Clerc-Blain J, Haidar H, Affdal AO, Dupras C, Ravitsky V. Canadian Pregnant Women's Preferences Regarding NIPT for Down Syndrome: The Information They Want, How They Want to Get It, and With Whom They Want to Discuss It. JOURNAL OF OBSTETRICS AND GYNAECOLOGY CANADA 2019; 41:782-791. [PMID: 30738740 DOI: 10.1016/j.jogc.2018.11.003] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2018] [Revised: 10/22/2018] [Indexed: 11/17/2022]
Abstract
OBJECTIVE This study sought to assess Canadian pregnant women's and their partners' preferences for information about non-invasive prenatal testing (NIPT). METHODS Pregnant women and their partners across Canada were surveyed as part of the Personalized Genomics for prenatal Aneuploidy Screening Using maternal blood (PEGASUS) study. RESULTS A total of 882 pregnant women and 395 partners participated. Women preferred being informed by a physician (77.2%). They preferred getting information ahead of time, except for information about resources for families with Down syndrome, which they preferred getting with test results. More than half thought that written consent is important (63.7%) and could decide whether to do NIPT on the day they received the information (54.9%). Women preferred to be informed of results by telephone (43.7%) or in person (28%), but they preferred in person if they were considered at high risk for Down syndrome on the basis of the results (76%). The partner was the person whose input was considered most important (62.6%). Partners' preferences were similar, except that partners tended to want information later (at the time of the test or with the results) and felt that their opinion was not considered as highly by health professionals. CONCLUSION Canadian women want information about NIPT early, in person, by a knowledgeable physician. Partners also want to be informed and involved in the decision-making process.
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Affiliation(s)
- Anne-Marie Laberge
- Department of Pediatrics, Université de Montréal, Montréal, QC; Service de génétique médicale, Centre hospitalier universitaire Sainte-Justine, Montréal, QC; Centre de recherche du Centre hospitalier universitaire Sainte-Justine, Montréal, QC.
| | - Stanislav Birko
- Bioethics Program, Department of Social and Preventive Medicine, School of Public Health, Université de Montréal, Montréal, QC
| | - Marie-Ève Lemoine
- Bioethics Program, Department of Social and Preventive Medicine, School of Public Health, Université de Montréal, Montréal, QC
| | | | - Hazar Haidar
- Institute for Health and Social Policy (IHSP), McGill University, Montréal, QC; Centre de recherche en éthique (CRÉ) de l'Université de Montréal, Montréal, QC
| | - Aliya O Affdal
- Bioethics Program, Department of Social and Preventive Medicine, School of Public Health, Université de Montréal, Montréal, QC
| | - Charles Dupras
- Institute for Health and Social Policy (IHSP), McGill University, Montréal, QC; Centre de recherche en éthique (CRÉ) de l'Université de Montréal, Montréal, QC
| | - Vardit Ravitsky
- Bioethics Program, Department of Social and Preventive Medicine, School of Public Health, Université de Montréal, Montréal, QC
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Wilson RD. Woman's Pre-Conception Evaluation: Genetic and Fetal Risk Considerations for Counselling and Informed Choice. JOURNAL OF OBSTETRICS AND GYNAECOLOGY CANADA 2018; 40:935-949. [DOI: 10.1016/j.jogc.2017.07.024] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2017] [Revised: 07/26/2017] [Accepted: 07/26/2017] [Indexed: 12/30/2022]
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Wilson RD, Gagnon A, Audibert F, Campagnolo C, Carroll J. Interventions et techniques de diagnostic prénatal visant l'obtention d'un prélèvement fœtal à des fins diagnostiques : Risques et avantages pour la mère et le fœtus. JOURNAL OF OBSTETRICS AND GYNAECOLOGY CANADA 2017; 38:S688-S703. [PMID: 28063574 DOI: 10.1016/j.jogc.2016.09.071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIF Offrir aux fournisseurs de soins de maternité et à leurs patientes des lignes directrices factuelles contemporaines en ce qui concerne les services de counseling traitant des risques et des avantages maternels propres à la tenue des interventions diagnostiques prénatales orientées par échographie (et/ou des techniques permettant l'établissement d'un diagnostic génétique) nécessaires dans les cas où il a été établi pendant la période prénatale que la grossesse serait exposée à des risques, ainsi qu'en ce qui concerne la prise de décisions subséquentes quant à la prise en charge de la grossesse (questions abordant des aspects tels que le niveau du fournisseur de soins obstétricaux, la surveillance prénatale, le lieu où devraient se dérouler les soins et l'accouchement, et la décision de poursuivre ou d'interrompre la grossesse). La présente directive clinique se limite aux services de counseling traitant des risques et des avantages maternels, et aux décisions en matière de prise en charge de la grossesse pour les femmes qui nécessitent (ou qui envisagent) la mise en œuvre d'une intervention ou d'une technique effractive orientée par échographie aux fins de l'établissement d'un diagnostic prénatal. POPULATION DE PATIENTES Femmes enceintes identifiées, à la suite de la mise en œuvre de protocoles établis de dépistage prénatal (taux sériques maternels ± imagerie, résultats d'analyse de l'ADN acellulaire indiquant des risques élevés, résultats anormaux au moment de l'imagerie fœtale diagnostique ou antécédents familiaux de troubles héréditaires), comme étant exposées à un risque accru d'anomalie génétique fœtale. Ces femmes pourraient nécessiter ou demander des services de counseling au sujet des risques et des avantages pour la grossesse de la tenue d'une intervention effractive orientée par échographie visant à déterminer l'étiologie, le diagnostic, et/ou la pathologie de possibles anomalies fœtales. RéSULTATS: La littérature publiée a été récupérée par l'intermédiaire de recherches menées dans Medline, PubMed et The Cochrane Library jusqu'en juin 2014 au moyen d'un vocabulaire contrôlé (« prenatal diagnosis », « amniocentesis », « chorionic villi sampling », « cordocentesis ») et de mots clés (« prenatal screening », « prenatal genetic counselling », « post-procedural pregnancy loss rate ») appropriés. Les résultats ont été restreints aux analyses systématiques, aux études observationnelles et aux essais comparatifs randomisés / essais cliniques comparatifs publiés en anglais entre janvier 1985 et juin 2014. Les recherches ont été mises à jour de façon régulière et intégrées à la directive clinique jusqu'en juin 2014. La littérature grise (non publiée) a été identifiée par l'intermédiaire de recherches menées dans les sites Web d'organismes s'intéressant à l'évaluation des technologies dans le domaine de la santé et d'organismes connexes, dans des collections de directives cliniques, dans des registres d'essais cliniques et auprès de sociétés de spécialité médicale nationales et internationales. VALEURS La qualité des résultats a été évaluée au moyen des critères décrits dans le rapport du Groupe d'étude canadien sur les soins de santé préventifs (Tableau 1). AVANTAGES, DéSAVANTAGES ET COûTS: Consentement éclairé de la patiente, transfert des connaissances, évaluation du risque génétique prénatal, soulagement de l'anxiété, création d'anxiété, défense des droits, compréhension du dépistage fœtal, limites du dépistage fœtal, choix en matière de prise en charge de la grossesse, complication de la grossesse ou fausse couche, soins opportuns et améliorés pour l'accouchement d'un enfant présentant une morbidité reconnue. RECOMMANDATIONS.
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Nevay DL, Hippman C, Inglis A, Albert A, Austin J. Impact of increased risk for fetal aneuploidy on maternal mood: a prospective longitudinal study. Acta Obstet Gynecol Scand 2016; 95:1120-8. [PMID: 27461056 DOI: 10.1111/aogs.12951] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2016] [Accepted: 07/20/2016] [Indexed: 10/21/2022]
Abstract
INTRODUCTION Our goal was to prospectively compare the trajectories of depression symptoms through pregnancy and postpartum between women who received normal prenatal screening results and those whose results indicated an increased risk for fetal aneuploidy. MATERIAL AND METHODS Women completed the Edinburgh Postnatal Depression Scale (EPDS) at 4-week intervals between <26 weeks' gestation and 3 months postpartum. We categorized women into four groups: (i) negative serum screening and ultrasound results (SS(-) /US(-) , n = 103), (ii) positive serum screening/negative ultrasound results (SS(+) /US(-) , n = 42), (iii) negative serum screening/positive ultrasound results (SS(-) /US(+) , n = 19), or (iv) positive serum screening and ultrasound results (SS(+) /US(+) , n = 13), and compared EPDS scores between groups using Poisson regression. RESULTS Women who received any positive prenatal screening result had significantly higher EPDS scores during pregnancy than SS(-) /US(-) women (p = 0.002), with SS(-) /US(+) women having the highest scores. During the postpartum, any positive screening test result was only marginally significantly associated with EPDS scores (p = 0.06), but women in the SS(-) /US(+) group had significantly higher scores than women in the SS(-) /US(-) group (p = 0.05). CONCLUSIONS Our data suggest that different types of prenatal screening tests may have different effects on women's moods, and that depression symptoms persist for women who have soft markers identified on ultrasound.
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Affiliation(s)
- Dayna L Nevay
- Department of Medical Genetics, University of British Columbia, Vancouver, British Columbia, Canada
| | - Catriona Hippman
- Department of Psychiatry, University of British Columbia, Vancouver, British Columbia, Canada.,Women's Health Research Institute, BC Women's Hospital & Health Centre, Vancouver, British Columbia, Canada
| | - Angela Inglis
- Department of Medical Genetics, University of British Columbia, Vancouver, British Columbia, Canada.,Department of Psychiatry, University of British Columbia, Vancouver, British Columbia, Canada
| | - Arianne Albert
- Women's Health Research Institute, BC Women's Hospital & Health Centre, Vancouver, British Columbia, Canada
| | - Jehannine Austin
- Department of Medical Genetics, University of British Columbia, Vancouver, British Columbia, Canada. .,Department of Psychiatry, University of British Columbia, Vancouver, British Columbia, Canada.
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Beyond Trisomy 21: Additional Chromosomal Anomalies Detected through Routine Aneuploidy Screening. J Clin Med 2014; 3:388-415. [PMID: 26237381 PMCID: PMC4449689 DOI: 10.3390/jcm3020388] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2014] [Revised: 02/06/2014] [Accepted: 02/18/2014] [Indexed: 01/28/2023] Open
Abstract
Prenatal screening is often misconstrued by patients as screening for trisomy 21 alone; however, other chromosomal anomalies are often detected. This study aimed to systematically review the literature and use diagnostic meta-analysis to derive pooled detection and false positive rates for aneuploidies other than trisomy 21 with different prenatal screening tests. Non-invasive prenatal testing had the highest detection (DR) and lowest false positive (FPR) rates for trisomy 13 (DR: 90.3%; FPR: 0.2%), trisomy 18 (DR: 98.1%; FPR: 0.2%), and 45,X (DR: 92.2%; FPR: 0.1%); however, most estimates came from high-risk samples. The first trimester combined test also had high DRs for all conditions studied (trisomy 13 DR: 83.1%; FPR: 4.4%; trisomy 18 DR: 91.9%; FPR: 3.5%; 45,X DR: 70.1%; FPR: 5.4%; triploidy DR: 100%; FPR: 6.3%). Second trimester triple screening had the lowest DRs and highest FPRs for all conditions (trisomy 13 DR: 43.9%; FPR: 8.1%; trisomy 18 DR: 70.5%; FPR: 3.3%; 45,X DR: 77.2%; FPR: 9.3%). Prenatal screening tests differ in their ability to accurately detect chromosomal anomalies. Patients should be counseled about the ability of prenatal screening to detect anomalies other than trisomy 21 prior to undergoing screening.
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Dixon V, Burton N. Are midwifery clients in Ontario making informed choices about prenatal screening? Women Birth 2014; 27:86-90. [PMID: 24656607 DOI: 10.1016/j.wombi.2014.02.003] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2013] [Revised: 01/30/2014] [Accepted: 02/16/2014] [Indexed: 11/19/2022]
Abstract
BACKGROUND Informed choice is often lacking in women's decisions about prenatal screening. AIM The aim of this study is to evaluate how well midwives in Ontario, Canada are facilitating informed choice in this area. METHODS An Internet-based survey was used to investigate 171 midwifery clients' knowledge, attitude towards and experience of prenatal genetic screening tests, and to determine the proportion of study participants who made an informed choice about prenatal screening. FINDINGS All participants demonstrated adequate knowledge of prenatal screening. The vast majority (93.0%) of participants made an informed choice. Participants who chose to screen had lower knowledge scores than those who opted out of screening. Client satisfaction rates in regard to care received in this area ranged from 97% to 100%. CONCLUSIONS Results of this study suggest that Ontario midwives are effective in conveying information on prenatal genetic screening, contributing to high levels of client knowledge and satisfaction in comparison to similar studies in other jurisdictions.
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Affiliation(s)
- Vanessa Dixon
- Midwifery Education Program at Ryerson University in Toronto, Toronto, ON, Canada.
| | - Nadya Burton
- Midwifery Education Program at Ryerson University in Toronto, Toronto, ON, Canada.
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Prenatal genetic screening: do not pass "go". JOURNAL OF OBSTETRICS AND GYNAECOLOGY CANADA 2013; 35:304-305. [PMID: 23660035 DOI: 10.1016/s1701-2163(15)30955-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Cartier L, Murphy-Kaulbeck L, Wilson RD. Prenatal genetic screening: do not pass "go". Author reply. JOURNAL OF OBSTETRICS AND GYNAECOLOGY CANADA 2013; 35:305. [PMID: 23660036 DOI: 10.1016/s1701-2163(15)30956-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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