Results 111 to 120 of about 149,494 (327)

Calpain Proteases and the Evolving Signaling Network in Insect Embryonic Patterning

open access: yesJournal of Experimental Zoology Part B: Molecular and Developmental Evolution, EarlyView.
Insect embryonic Dorsal‐Ventral (DV) patterning relies on the BMP and Toll pathways to different extents. Calcium‐dependent cystein proteases of the Calpain family also exert an important function to pattern the DV axis. In Drosophila, Calpain A cleaves the Cactus/IkappaB inhibitor and modifies Toll signals in ventral regions of the embryo. In Rhodnius
Alison Julio, Helena Araujo
wiley   +1 more source

Oocyte Age‐Dependent DNA Damage Can Be Reverted by the DNA Repair Competent Karyoplasm of Young Oocytes

open access: yesAging Cell, EarlyView.
As females age, oocyte chromosomal aberrations and DNA damage increase in frequency; this condition is believed to be irreversible. By exposing the aged oocyte nuclei to nuclear factors from young oocytes, the negative effects can be effectively suppressed, restoring their developmental competence. ABSTRACT Mammalian fully grown oocytes are believed to
Nataliia Dudko   +8 more
wiley   +1 more source

Feasibility of artificial intelligence for predicting live birth without aneuploidy from a blastocyst image

open access: yesReproductive Medicine and Biology, 2019
Purpose To make the artificial intelligence (AI) classifiers of the image of the blastocyst implanted later in order to predict the probability of achieving live birth.
Yasunari Miyagi   +3 more
doaj   +1 more source

Thoraco‐Omphalopagus Conjoined Twins Following IVF With Day 5 Embryo Transfer: A Rare Case Report and Multidisciplinary Management Approach [PDF]

open access: yesClin Case Rep
ABSTRACT Conjoined twinning is a rare and severe complication of monozygotic pregnancies. Assisted reproductive technologies (ART), including in vitro fertilization (IVF), may increase the risk of such anomalies. We report a case of thoraco‐omphalopagus conjoined twins following a day 5 embryo transfer after IVF with intracytoplasmic sperm injection ...
Piekos P, Ravelo N, Ruano R, Attia G.
europepmc   +2 more sources

Bta-miR-10b secreted by bovine embryos negatively impacts preimplantation embryo quality [PDF]

open access: yes, 2019
In a previous study, we found miR-10b to be more abundant in a conditioned culture medium of degenerate embryos compared to that of blastocysts. Here, we show that miR-10b mimics added to the culture medium can be taken up by embryos. This uptake results
Deforce, Dieter   +6 more
core   +1 more source

Impact of double versus single blastocyst biopsy and vitrification on clinical and neonatal outcomes in PGT cycles: A systematic review and meta‐analysis of embryo retesting

open access: yesActa Obstetricia et Gynecologica Scandinavica, EarlyView.
Rebiopsied and revitrified blastocysts may be linked to lower pregnancy and live birth rates in single euploid frozen embryo transfer cycles (very low‐quality evidence). Subgroup effects by biopsy day and morphology may hold clinical relevance and guide future study design.
Alessandra A. Vireque   +4 more
wiley   +1 more source

Notch signaling in mouse blastocyst development and hatching [PDF]

open access: gold, 2020
Mariana Batista   +5 more
openalex   +1 more source

Pregnancy and perinatal outcomes after day 5 versus day 6 blastocyst‐stage embryo transfer: A systematic review and meta‐analysis

open access: yesActa Obstetricia et Gynecologica Scandinavica, EarlyView.
We conducted a meta‐analysis to compare the pregnancy and perinatal outcomes after day 5 versus day 6 single frozen‐thawed blastocyst transfer, aims to identify more appropriate strategies for transplantation. ART practitioners should give priority to transfer D5 rather than D6 blastocysts in single vitrified‐warmed cycle in clinical practice. Abstract
Wenhui Hou   +6 more
wiley   +1 more source

Establishment of a trans‐vaginal ultrasound‐guided pinpoint transfer method

open access: yesReproductive Medicine and Biology, 2018
Purpose Through the use of the trans‐vaginal ultrasound‐guided pinpoint transfer method, the aim was to ensure the safety of the embryo being transferred in cases of difficult cervixes.
Sumihide Okamoto
doaj   +1 more source

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