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1.
Rev Colomb Obstet Ginecol ; 71(1): 56-62, 2020 Mar.
Article in English | MEDLINE | ID: mdl-32418376

ABSTRACT

OBJECTIVE: To report the case of a patient with mosaic Turner syndrome who underwent assisted reproduction treatment with preimplantation genetic testing for aneuploidy and gave birth to a healthy baby girl with normal karyotype; and to conduct a review of the literature on the usefulness of preimplantation genetic diagnosis in women with Turner syndrome. METHODS: A case of a 27 year-old woman diagnosed with mosaic Turner syndrome and secondary altered ovarian reserve, seen in a referral center for infertility management in Medellín, Colombia. The patient underwent in vitro fertilization followed by pre-implantation genetic testing to prevent transmission of Turner syndrome to her progeny. A literature search was conducted in the Medline via PubMed, Clinical Key, OVID, Embase, Lilacs, SciELO and Oxford Journals databases using the following terms: "Turner Syndrome," "Mosaic Turner," "Preimplantation Genetic Screening," "Preimplantation Genetic Testing," "Preimplantation Genetic Diagnosis," "Pregnancy," "Successful pregnancy." Inclusion criteria were case series and case reports, cohort studies and review articles published between January 1980 and June 2017 that included women with Turner syndrome achieving pregnancy by means of in vitro fertilization techniques with their own oocytes and who had undergone embryo biopsy for preimplantation genetic diagnosis. The search was limited to articles in Spanish and English. RESULTS: one study met the inclusion criteria. Both in this report and in our case, patients with mosaic Turner syndrome underwent several cycles of intracytoplasmic sperm injection (ICSI) with their own eggs, then performed embryonic biopsy for preimplantation genetic analysis using different techniques. In both cases, euploid embryos were transferred to the uterus with the subsequent birth of healthy girls with normal karyotype. CONCLUSIONS: Patients with mosaic Turner syndrome could benefit from preimplantation biopsy and genetic analysis to prevent transmission of the genetic defect to their progeny.


TITULO: RECIÉN NACIDO SANO DESPUÉS DE DIAGNÓSTICO GENÉTICO PREIMPLANTATORIO EN UNA MADRE CON SÍNDROME DE TURNER MOSAICO. REPORTE DE CASO Y REVISIÓN DE LA LITERATURA. OBJETIVO: reportar el caso de una paciente con síndrome de Turner en mosaico, a quien se le realizó un tratamiento de reproducción asistida con análisis genético preimplantatorio para aneuploidias, logrando el nacimiento de una niña sana con cariotipo normal, y realizar una revisión de la literatura sobre la utilidad del diagnóstico genético preimplantatorio en las mujeres con síndrome de Turner. METODOS: se presenta el caso de una mujer de 27 años, con diagnóstico de síndrome de Turner en mosaico y con alteración secundaria en la reserva ovárica, atendida en centro de referencia para el manejo de infertilidad en Medellín, Colombia, a quien se le realizó un tratamiento de fertilización in vitro con análisis genético preimplantatorio para prevenir la transmisión del síndrome de Turner a su descendencia. Se realizó una búsqueda de la literatura en las bases de datos Medline vía PubMed, Clinical Key, OVID, Embase, Lilacs, SciELO y Oxford Journals, con los siguientes términos: "Turner Syndrome", "Mosaic Turner", "Preimplantation Genetic Screening", "Preimplantation Genetic Testing", "Preimplantation Genetic Diagnosis", "Pregnancy", "Successful pregnancy". Como criterios de inclusión se consideraron artículos tipo series y reportes de casos, cohortes y artículos de revisión desde enero de 1980 hasta junio de 2017, que incluyeran mujeres con síndrome de Turner embarazadas por medio de técnicas de fertilización in vitro, con sus propios óvulos, y que hubiesen sido sometidas a biopsia embrionaria para diagnóstico genético preimplantatorio. La búsqueda se limitó a los idiomas español e inglés. RESULTADOS: un estudio cumplió con los criterios de inclusión. Tanto en este reporte como en nuestro caso, las pacientes con síndrome de Turner en mosaico se sometieron a varios ciclos de inyección intracitoplasmática de espermatozoides (ICSI) con sus propios óvulos, luego se realizó biopsia embrionaria para análisis genético preimplantatorio utilizando diferentes técnicas. En ambos casos se logró la transferencia al útero de embriones euploides con el posterior nacimiento de niñas sanas con cariotipo normal. CONCLUSIONES: Las pacientes con ST mosaico podrían beneficiarse de la biopsia embrionaria y análisis genético preimplantatorio para prevenir la transmisión del defecto genético a su descendencia. Palabras clave: síndrome de Turner; aneuploidía; diagnóstico preimplantación; análisis genético preimplantatorio; reserva ovárica.


Subject(s)
Mosaicism , Pregnancy Complications/genetics , Preimplantation Diagnosis , Sperm Injections, Intracytoplasmic , Turner Syndrome/complications , Adult , Female , Humans , Infant, Newborn , Infertility, Female/genetics , Pregnancy , Turner Syndrome/genetics , Turner Syndrome/prevention & control
2.
Rev. Hosp. Ital. B. Aires (2004) ; 39(1): 12-18, mar. 2019. ilus., tab.
Article in Spanish | LILACS | ID: biblio-1021819

ABSTRACT

El síndrome de Turner (ST) resulta de la ausencia completa o parcial del segundo cromosoma sexual en fenotipos femeninos. Tiene una incidencia de 1:2000- 2500 nacidas vivas. Recién en la última década se ha puesto atención a la salud de las adultas con ST. La mortalidad es 3 veces superior respecto de la población general debido al riesgo de disección aórtica por anomalías cardiovasculares estructurales y aterosclerosis vinculada a hipertensión arterial, diabetes, dislipidemia y obesidad. También presentan elevada prevalencia de enfermedades autoinmunitarias. Objetivo: evaluar la calidad del seguimiento clínico de pacientes adultas con ST, comparando los controles de salud preconformación y posconformación del Registro y de la Unidad Interdisciplinaria. En el año 2017 fuimos convocados para integrar el Programa de Enfermedades Raras del Hospital Italiano de Buenos Aires. A partir de la creación del Registro Institucional y del equipo multidisciplinario obtuvimos mejoría significativa en los controles por las especialidades de cardiología, endocrinología y otorrinolaringología, en los controles bioquímicos del metabolismo lipídico, hidrocarbonado, hepatograma, TSH y anticuerpos para celiaquía e imágenes cardiovasculares y densitometría ósea. En conclusión, el seguimiento sistematizado e institucional, mediante el Registro y la creación de la Unidad Interdisciplinaria de Síndrome de Turner, permitió encontrar las falencias del sistema de atención y optimizar el seguimiento de esta población. (AU)


Turner syndrome (TS) results from the complete or partial absence of the second sex chromosome in female phenotypes. It has an incidence of 1: 2000-2500 girls born alive. Only in the last decade has been paid attention to the health of adults women with TS. Mortality is 3 times higher than in the general population due to the risk of aortic dissection cause to structural cardiovascular anomalies and atherosclerosis related to hypertension, diabetes, dyslipidemia and obesity. They also have a high prevalence of autoimmune diseases. Until nowadays in Argentina do not exist a national registry of this disease that complies with the international follow-up recommendations for these patients. We proposed to develop the institutional register at 2014 and a multidisciplinary team was created to care and follow up girls and women with TS during 2015. It was indexed to Italian Hospital of Buenos Aires' Rare Diseases Program since 2017. After the creation of the institutional registry and the multidisciplinary team we obtained a significant improvement in cardiology, endocrinology and otorhinolaryngology schedule visits, in lipids and hydrocarbon metabolism, liver, thyroid and celiac diseases biochemical controls and in the performance of cardiovascular MNR and bone densitometry. In conclusion, the systematized and institutional follow-up, through the registry and the creation of the Interdisciplinary Unit of Turner Syndrome, allowed us to find the flaws of the care system and to optimize the follow up of this population. (AU)


Subject(s)
Humans , Female , Adolescent , Adult , Middle Aged , Young Adult , Quality of Life , Turner Syndrome/prevention & control , Aftercare/statistics & numerical data , Aortic Dissection/etiology , Autoimmune Diseases/epidemiology , Turner Syndrome/complications , Turner Syndrome/etiology , Turner Syndrome/mortality , Turner Syndrome/epidemiology , Aftercare/methods , Cardiovascular Abnormalities/complications , Human Growth Hormone/therapeutic use , Diabetes Mellitus , Atherosclerosis/complications , Dyslipidemias/complications , Estrogens/therapeutic use , Gonadal Disorders/etiology , Hypertension/complications , Infertility, Female/etiology , Obesity/complications
4.
An. pediatr. (2003, Ed. impr.) ; 82(1): e131-e134, ene. 2015. ilus
Article in Spanish | IBECS | ID: ibc-131696

ABSTRACT

El síndrome de Turner se diagnostica mediante la combinación de ciertas características fenotípicas con la ausencia de un cromosoma X. Esta ausencia puede ser total o parcial, como la que tiene lugar en los isocromosomas X. Las consecuencias fenotípicas de estos dependen de 2 factores: la naturaleza de los genes que se han perdido y el porcentaje de células 45, X en los mosaicismos. La clínica cambia en función del patrón citogenético, prevaleciendo la talla baja como manifestación fenotípica, ya que radica en la haploinsuficiencia del gen SHOX en el brazo corto del cromosoma X. Así, cuando existen isocromosomas de los brazos largos, la talla baja siempre está presente. Sin embargo, los rasgos típicos pueden estar ausentes, conllevando retraso diagnóstico. Este hecho se da en nuestras pacientes, y a causa de ello se beneficiarán en menor medida del tratamiento con GH


Turner syndrome is diagnosed by the combination of certain phenotypic characteristics with the absence of one of the X chromosome. This absence may be total or partial, as occurs in isochromosomes Xq. The phenotypic consequences of these depend on two factors: the characteristics of the lost genes and the percentage of cells 45, X in mosaicisms. The clinical features also change with the cytogenetic pattern. Short stature is the most common phenotypic manifestation, as it is due to the haploinsufficiency of the SHOX gene on the short arm of X chromosomes. Thus, when there is isochromosomes on the long arms, short stature is always present. However, the typical features of this syndrome could be absent, and the diagnosis can be delayed. This occurred in our patients, who will not be able to obtain optimum benefits with growth hormone treatment


Subject(s)
Humans , Male , Female , Child , Turner Syndrome/complications , Turner Syndrome/diagnosis , Turner Syndrome/metabolism , Isochromosomes/genetics , Polycythemia/diagnosis , Hormones/administration & dosage , Turner Syndrome/chemically induced , Turner Syndrome/prevention & control , Turner Syndrome/therapy , Polycythemia/complications , Hormones/adverse effects , Hormones/analysis
5.
Fertil Steril ; 95(5): 1788.e1-3, 2011 Apr.
Article in English | MEDLINE | ID: mdl-21272868

ABSTRACT

OBJECTIVE: To determine the efficacy of the preimplantation cytogenetic analysis of the embryos obtained from patient with mosaic Turner syndrome before an IVF program. DESIGN: Prospective cytogenetic analysis. SETTING: University-based tertiary medical center. PATIENT(S): A 29 year-old female, a partner in a couple with male factor infertility, was diagnosed with mosaic Turner syndrome with a 45,X [17]/46,XX [13] karyotype. INTERVENTION(S): Preimplantation genetic diagnosis was performed on four blastomeres obtained from four different embryos by fluorescence in situ hybridization probes specific to chromosomes X, Y, 13, 18, 21 in an intracytoplasmic sperm injection cycle. MAIN OUTCOME MEASURE(S): Blastomeres with normal signals. RESULT(S): Two blastomeres detected as normal were transferred and pregnancy was achieved. CONCLUSION(S): Preimplantation Genetic Diagnose should be considered in the infertility treatment of the patient with mosaic Turner Syndrome.


Subject(s)
Fertilization in Vitro , Infertility, Male/therapy , Mosaicism , Preimplantation Diagnosis , Turner Syndrome/therapy , Adult , Cytogenetic Analysis , Female , Humans , Infertility, Male/complications , Male , Pregnancy , Preimplantation Diagnosis/methods , Treatment Outcome , Turner Syndrome/complications , Turner Syndrome/genetics , Turner Syndrome/prevention & control
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