Analysis of the Endometrial Transcriptome at the Time of Implantation in Women Receiving a Single Post-Ovulatory Dose of Levonorgestrel or Mifepristone
Título del documento: Analysis of the Endometrial Transcriptome at the Time of Implantation in Women Receiving a Single Post-Ovulatory Dose of Levonorgestrel or Mifepristone
Revue: Revista de investigación clínica
Base de datos: PERIÓDICA
Número de sistema: 000453191
ISSN: 0034-8376
Autores: 1
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Instituciones: 1Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Departamento de Biología Reproductiva Dr. Carlos Gual Castro, Ciudad de México. México
Año:
Periodo: Nov-Dic
Volumen: 72
Número: 6
Paginación: 363-371
País: México
Idioma: Inglés
Tipo de documento: Artículo
Enfoque: Experimental, aplicado
Resumen en inglés Background: Levonorgestrel (LNG) is a progesterone receptor agonist used in both regular and emergency hormonal contraception; however, its effects on the endometrium as a contraceptive remain widely unknown and under public debate. Objective: To analyze the effects of LNG or mifepristone (MFP), a progesterone receptor antagonist and also known as RU-486, administered at the time of follicle rupture (FR) on endometrial transcriptome during the receptive period of the menstrual cycle. Methods: Ten volunteers ovulatory women were studied during two menstrual cycles, a control cycle and a consecutively treated cycle; in this last case, women were randomly allocated to two groups of 5 women each, receiving one dose of LNG (1.5 mg) or MFP (50 mg) the day of the FR by ultrasound. Endometrial biopsies were taken 6 days after drug administration and prepared for microarray analysis. Results: Genomic functional analysis in the LNG-treated group showed as activated the bio-functions embryo implantation and decidualization, while these bio-functions in the T-MFP group were predicted as inhibited. Conclusions: The administration of LNG as a hormonal emergency contraceptive resulted in an endometrial gene expression profile associated with receptivity. These results agree on the concept that LNG does not affect endometrial receptivity and/or embryo implantation when used as an emergency contraceptive
Disciplinas: Medicina
Palabras clave: Ginecología y obstetricia,
Farmacología,
Anticoncepción de emergencia,
Levonorgestrel,
Transcripción génica,
Receptividad endometrial
Keyword: Gynecology and obstetrics,
Pharmacology,
Emergency contraception,
Levonorgestrel,
Gene transcription,
Endometrial receptivity
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