Results 21 to 30 of about 8,571 (229)

Oldest preserved umbilical scar reveals dinosaurs had ‘belly buttons’

BMC Biology, 2022
Background In egg-laying amniotes, the developing embryo is tethered to a number of the extraembryonic membranes including the yolk sac and allantois that deliver oxygen and nutrients and remove metabolic waste products throughout embryonic development ...
Phil R. Bell, Christophe Hendrickx, Michael Pittman, Thomas G. Kaye   +3 more
doaj   +1 more source

In ovo model in cancer research and tumor immunology

Frontiers in Immunology, 2022
Considering cancer not only as malignant cells on their own but as a complex disease in which tumor cells interact and communicate with their microenvironment has motivated the establishment of clinically relevant 3D models in past years.
Lea Miebach, Lea Miebach, Julia Berner, Julia Berner, Julia Berner, Sander Bekeschus, Sander Bekeschus   +6 more
doaj   +1 more source

New Insights Into the Role of β-NGF/TrKA System in the Endometrium of Alpacas During Early Pregnancy

Frontiers in Veterinary Science, 2021
One striking reproductive feature in South American camelids is that more than 90% of gestations are established in the left uterine horn (LUH). This phenomenon could be related to a differential vascular irrigation of the LUH.
Daniela E. Barraza, Luciana M. Sari, Silvana A. Apichela, Silvana A. Apichela, Marcelo H. Ratto, Martin E. Argañaraz, Martin E. Argañaraz   +6 more
doaj   +1 more source

The sheep conceptus modulates proteome profiles in caruncular endometrium during early pregnancy [PDF]

, 2016
This project was funded by NHS Grampian R&D project number RG05/019Peer ...
Al-Gubory, Kaïs, Arianmanesh, Mitra, Fowler, Paul A   +2 more
core   +2 more sources

Concomitant Morphological Modifications of the Avian Eggshell, Eggshell Membranes and the Chorioallantoic Membrane During Embryonic Development

Frontiers in Physiology, 2022
The chicken eggshell (ES) consists of 95% calcium carbonate and 3.5% organic matter, and represents the first physical barrier to protect the developing embryo, while preventing water loss.
Maeva Halgrain, Sonia Georgeault, Nelly Bernardet, Maxwell T. Hincke, Maxwell T. Hincke, Sophie Réhault-Godbert   +5 more
doaj   +1 more source

Trophoblast biology: Forum introduction

Reproductive Biology and Endocrinology, 2004
In mammals, a carefully orchestrated dialogue between the mother and conceptus (embryo/fetus and associate extraembryonic membranes) is initiated during the peri-implantation period of pregnancy as the trophoblast develops, functions to signal pregnancy ...
Bazer Fuller W, Spencer Thomas E
doaj   +1 more source

The effect of methenamine on vascular development: Experimental investigation using in vivo and insilico methods

International Journal of Reproductive BioMedicine, 2020
Background: Methenamine is a worldwide antibacterial agent for urinary system infections in human and animals. The effect of methenamine consumption during early phase of pregnancy is not fully clarified in previous studies.
Hadi Tavakkoli, Masoud Imani, Mohammad Rahchamani Seyyed, Mohsen Rezvani   +3 more
doaj   +1 more source

Chorioallantoic membrane assay as model for angiogenesis in tissue engineering : focus on stem cells [PDF]

, 2020
Tissue engineering aims to structurally and functionally regenerate damaged tissues, which requires the formation of new blood vessels that supply oxygen and nutrients by the process of angiogenesis.
Bronckaers, Annelies, De Spiegelaere, Ward, Lambrichts, Ivo, Lo Monaco, Melissa, Merckx, Greet, Tay, Hanna, van Zandvoort, Marc   +6 more
core   +3 more sources

Vertical transmission of African-lineage Zika virus through the fetal membranes in a rhesus macaque (Macaca mulatta) model.

PLoS Pathogens, 2023
Zika virus (ZIKV) can be transmitted vertically from mother to fetus during pregnancy, resulting in a range of outcomes including severe birth defects and fetal/infant death.
Michelle R Koenig, Ann M Mitzey, Xiankun Zeng, Leticia Reyes, Heather A Simmons, Terry K Morgan, Ellie K Bohm, Julia C Pritchard, Jenna A Schmidt, Emily Ren, Fernanda B Leyva Jaimes, Eva Winston, Puja Basu, Andrea M Weiler, Thomas C Friedrich, Matthew T Aliota, Emma L Mohr, Thaddeus G Golos   +17 more
doaj   +1 more source

Loss of DNMT1o Disrupts Imprinted X Chromosome Inactivation and Accentuates Placental Defects in Females [PDF]

, 2013
The maintenance of key germline derived DNA methylation patterns during preimplantation development depends on stores of DNA cytosine methyltransferase-1o (DNMT1o) provided by the oocyte.
A Wagschal, AL Fowden, AS Doherty, B Lehnertz, BK Sun, C Beard, C Mertineit, Christoph Plass, Christopher C. Oakes, CM Disteche, CP Walsh, CY Howell, D Bourc'his, DE Cohen, DJ Smiraglia, E Borowczyk, E Heard, EJ Michaud, H Barr, I Hatada, I Okamoto, I Zvetkova, J Chaumeil, J Silva, J. Richard Chaillet, JA Bailey, Jacquetta M. Trasler, JC Chow, JD West, Jeannie T. Lee, JM Trasler, Josée Martel, JT Lee, JT Lee, K Hata, KD Huynh, KD Huynh, KL Tucker, KP Himes, L Yu, LL Carlson, M Ehrich, M Hemberger, M Kaneda, M Toppings, M. Cecilia Cirio, Marisa S. Bartolomei, MC Cardoso, MC Cirio, MC Cirio, MF Lyon, N Stavropoulos, N Takagi, Pauline de Zeeuw, RJ Klose, RM Boumil, S Ratnam, Serge McGraw, SH Namekawa, T Ohhata, T Ohhata, T Sado, T Sado, T Sado, T Sado, TH Bestor, W Mak, W Mak, W Reik, W Reik, WA Schulz, Winifred Mak, Y Kurihara, Y Marahrens, Y Ogawa, Y Okazaki   +75 more
core   +10 more sources