Results 71 to 80 of about 6,926,942 (297)

Cellular Fragments in the Perivitelline Space Are Not a Predictor of Expanded Blastocyst Quality

Frontiers in Cell and Developmental Biology, 2021
The presence of cellular fragments in the perivitelline space is a commonly used parameter to determine quality before transfer of in vitro produced (IVP) embryos. However, this parameter is difficult to assess after blastocyst expansion.
Bo Yu, Helena T. A. van Tol, Tom A. E. Stout, Bernard A. J. Roelen   +3 more
doaj   +1 more source

Ligand‐dependent transcriptional heterogeneity in cell cycle gene expression delays G1/S entry

FEBS Letters, EarlyView.
EGF and HRG induce distinct G1/S progression programs in ErbB2‐amplified BT474 breast cancer cells. Despite activating the potent ErbB2–ErbB3 heterodimer, HRG does not accelerate cell‐cycle entry. Instead, EGF promotes earlier restriction‐point passage via ERK–FOS signaling, whereas HRG activates the AKT–MYC axis, driving transcriptional heterogeneity ...
Ririn Rahmala Febri, Ayaka Nagasato‐Ichikawa, Keita Iida, Shuhei Kimura, Akira Imamoto, Mariko Okada   +5 more
wiley   +1 more source

Translophagy—A potential link between autophagy impairment and translational errors

FEBS Letters, EarlyView.
Neurodegenerative diseases are characterised by the accumulation of abnormal proteins and protein aggregates, but their origin often remains unknown. We propose that selective autophagy removes damaged protein‐making machinery, preventing errors during protein synthesis.
Mykola V. Korolchuk, Gailing Ma, Robin Antrobus, Diego Manni, Marco Trevisan‐Herraz, Mustafa Khwaja, Max Brown, Gavin D. Richardson, Masaaki Komatsu, Daniel Erskine, Viktor I. Korolchuk, Tetsushi Kataura   +11 more
wiley   +1 more source

Meeting embryonic requirements of broilers throughout incubation: a review [PDF]

, 2010
During incubation of chicken embryos, environmental conditions, such as temperature, relative humidity, and CO2 concentration, must be controlled to meet embryonic requirements that change during the different phases of embryonic development.
Brand, H., van den, Meijerhof, R., Reijrink, I.A.M., Molenaar, R.   +3 more
core  

Effect of endometrial thickness and embryo quality on live-birth rate of fresh IVF/ICSI cycles: a retrospective cohort study

Reproductive Biology and Endocrinology, 2020
Background Successful implantation and delivery require both the functional embryo and receptive endometrium in assisted reproductive technology (ART) cycles. However, little is known about embryo-endometrial interaction on live-birth.
Hong Lv, Xiuzhu Li, Jiangbo Du, Xiufeng Ling, Feiyang Diao, Qun Lu, Shiyao Tao, Lei Huang, Shiyao Chen, Xiumei Han, Kun Zhou, Bo Xu, Xiaoyu Liu, Hongxia Ma, Yankai Xia, Hongbing Shen, Zhibin Hu, Guangfu Jin, Yichun Guan, Xinru Wang   +19 more
doaj   +1 more source

From junk to function — How weak selection in eukaryotes builds new parts and drives genomic complexity

FEBS Letters, EarlyView.
How do genomes gain new functional parts? In eukaryotes, which tend to evolve under weak selection, much of the genome is junk. Palazzo and Qiu borrow the logic of Markov chains to show how non‐functional DNA becomes functional through the appearance of intermediate states, which arise due to epistasis, buffering, and biochemical messiness, allowing ...
Alexander F. Palazzo, Yi Qiu
wiley   +1 more source

Mitochondrial DNA copy number level in the culture medium of human embryos as a factor in predicting the onset and prolongation of pregnancy

RUDN Journal of Medicine
Relevance. A key factor influencing the effectiveness of assisted reproductive technology programmes is the quality of the embryo transferred into the uterine cavity.
Olga I. Lisitsyna, Nataliya P. Makarova, Aleksey M. Krasnyi, Alexey N. Ekimov, Andrey Yu. Romanov, Nataliya V. Dolgushina   +5 more
doaj   +1 more source

Top‐quality embryo transfer is associated with lower odds of ectopic pregnancy

Acta Obstetricia et Gynecologica Scandinavica, 2022
Introduction The incidence of ectopic pregnancy is up to four times higher after in vitro fertilization/intracytoplasmic sperm injection (IVF/ICSI) than in spontaneous pregnancies, and the risk of ectopic pregnancy is increased by tubal factor ...
Simona Anzhel, Sirpa Mäkinen, Helena Tinkanen, Tiina Mikkilä, Anni Haltia, Antti Perheentupa, Candido Tomás, Hannu Martikainen, Aila Tiitinen, Juha S. Tapanainen, Zdravka Veleva   +10 more
doaj   +1 more source

Developmental programmes drive cellular plasticity, disease progression and therapy resistance in lung adenocarcinoma

Molecular Oncology, EarlyView.
This study shows that lung adenocarcinomas exploit developmental branching morphogenesis to acquire a therapy resistant basal‐like tumour cell state. This process was found to be regulated by combined TP53 loss‐of‐function and type‐I interferon signalling, identifying a novel axis for biomarker and therapeutic target discovery.
Kamila J Bienkowska, Stephany Gallardo, Nur S. Zainal, Leena Arora, Matthew Ellis, Maria‐Antoinette Lopez, Judith Austine, Sai Pittla, Serena J Chee, Aiman Alzetani, Emily C Shaw, Christian H Ottensmeier, Gareth J Thomas, Christopher J Hanley   +13 more
wiley   +1 more source

Concentration of stromal cell‐derived factor‐1 (SDF‐1/CXCL12) in the follicular fluid is associated with blastocyst development

Reproductive Medicine and Biology, 2019
Purpose To study the association between stromal cell‐derived factor‐1 (SDF‐1/CXCL12) and vascular endothelial growth factor (VEGF) concentrations in individual human ovarian follicles and IVF outcomes.
Akemi Nishigaki, Tomoko Tsuzuki‐Nakao, Takeharu Kido, Naoko Kida, Maiko Kakita‐Kobayashi, Hiromi Murata, Hidetaka Okada   +6 more
doaj   +1 more source