Results 11 to 20 of about 23,902 (211)

Infertilidad masculina

open access: yesRevista Colombiana de Obstetricia y Ginecología, 1956
Se puede aceptar sin ninguna duda, que la infertilidad masculina constituye un problema en la reproducción humana. Podemos agregar además, de acuerdo a mi opinión, que el problema es universal y no puede reducirse a los países en los que se realizan ...
John Macleod
doaj   +3 more sources

Infertilidad masculina

open access: yesRevista Médica Clínica Las Condes, 2010
Se estima que aproximadamente un 15% de las parejas son incapaces de concebir luego de un año de relaciones sexuales no protegidas; 30% son debidas a factor femenino y 30% a factor masculino. El 40% restante es de causa mixta.
A. Christian Huidobro, Dr.
doaj   +2 more sources

Treatment with Calcium Ionophore Improves The Results in Patients with Previous Unsuccessful Attempts at The Fertilization: A Cohort Study [PDF]

open access: yesInternational Journal of Fertility and Sterility, 2021
Background: The objective of this study is to evaluate artificial oocyte activation (AOA) with calcium ionophore(CaI) in a subsequent attempt at fertilisation in patients after extremely low or failed fertilisation.
Alberto Tejera   +5 more
doaj   +1 more source

Factores causales de infertilidad

open access: greenRevista Información Científica, 2019
Introducción: la infertilidad adquiere cada día mayor auge en las sociedades. Objetivo: facilitar la labor del médico de la familia en la captación y seguimiento de los casos de infertilidad.
Angel Florencio Ramirez Moran   +3 more
doaj   +1 more source

Utilidad del Cobas® Taqman® Ct Test, v2.0 para la detección de cepas de Chlamydia Trachomatis circulantes en México

open access: yesRevista Peruana de Investigación en Salud, 2022
Objetivo: Evaluar la utilidad de la prueba de qPCR de COBAS® TaqMan® Chlamydia trachomatis (CT) para la detección de cepas circulantes en México. Materiales y Métodos: Estudio descriptivo y transversal.
Marcela López-Hurtado   +4 more
doaj   +3 more sources

A Natural Xenogeneic Endometrial Extracellular Matrix Hydrogel Toward Improving Current Human in vitro Models and Future in vivo Applications

open access: yesFrontiers in Bioengineering and Biotechnology, 2021
Decellularization techniques support the creation of biocompatible extracellular matrix hydrogels, providing tissue-specific environments for both in vitro cell culture and in vivo tissue regeneration.
Sara López-Martínez   +11 more
doaj   +1 more source

Paternal advanced age and sperm quality are indicators for Preimplantation Genetic Testing in egg donation cycles

open access: yesClinical and Experimental Obstetrics & Gynecology, 2021
Background: A wide variety of studies demonstrate the influence of the oocyte source’s age on the success of assisted reproduction treatments; however, the effect of paternal age has been studied to a lesser extent.
Jeimy Pedraza   +3 more
doaj   +1 more source

Embryos derived from donor or patient oocytes are not different for in vitro fertilization outcomes when PGT allows euploid embryo selection: a retrospective study

open access: yesClinical and Translational Medicine, 2020
Background At our facilities, patients that received embryos using donor oocyte during in vitro fertilization (IVF), usually have had at least one failed attempt to produce at least one euploid embryo with their own oocytes; however, the current debate ...
Elizabeth Schaeffer   +5 more
doaj   +1 more source

Initial ovarian sensitivity index predicts embryo quality and pregnancy potential in the first days of controlled ovarian stimulation

open access: yesJournal of Ovarian Research, 2020
Background To determine if a modified ovarian sensitivity index (MOSI), based on initial follicular measurements and the initial follicle-stimulating hormone (FSH) dose, can predict the production of high-quality embryos for successful implantation ...
David Camargo-Mattos   +5 more
doaj   +1 more source

Freeze-all, for whom, when, and how

open access: yesUpsala Journal of Medical Sciences, 2020
Background: The ‘freeze-all’ practice refers to the cryopreservation of all mature oocytes or viable embryos after ovarian stimulation. The development of the vitrification technique has been crucial to make this approach a reality, since it increases ...
Paula Celada, Ernesto Bosch
doaj   +1 more source

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