Results 61 to 70 of about 3,983 (179)

Spatiotemporal segmentation of contraction waves in the extra-embryonic membranes of the red flour beetle

BMC Bioinformatics
Background In this paper, we introduce an image analysis approach for spatiotemporal segmentation, quantification, and visualization of movement or contraction patterns in 2D+t and 3D+t microscopy recordings of biological tissues. The development of this
Marc Pereyra, Mariia Golden, Zoë Lange, Artemiy Golden, Frederic Strobl, Ernst H. K. Stelzer, Franziska Matthäus   +6 more
doaj   +1 more source

Conceptus signals for establishment and maintenance of pregnancy

Reproductive Biology and Endocrinology, 2004
Establishment and maintenance of pregnancy results from signaling by the conceptus (embryo/fetus and associated extraembryonic membranes) and requires progesterone produced by the corpus luteum (CL).
Bazer Fuller W, Spencer Thomas E
doaj   +1 more source

Progressive Cellularization of Blastoderm and Extraembryonic Tissue Formation in the Ant Camponotus floridanus

Journal of Experimental Zoology Part B: Molecular and Developmental Evolution, Volume 346, Issue 5, Page 411-421, July 2026.
Illustration of the process of cellularization in Camponotus floridanus (top row) compared to Drosophila melanogaster (bottom row). Progressive direct formation of differentiating blastoderm mode is depicted using hexagons that represent energids (without borders) and cells (with borders). Colors of nuclei represent different cell types.
Nihan Sultan Milat, Murat Pekmez, Ab. Matteen Rafiqi   +2 more
wiley   +1 more source

Extraembryonic Membranes and Placentation in the Mexican Snake Conopsis lineata

Journal of Morphology
ABSTRACT Extraembryonic membranes provide protection, oxygen, water, and nutrients to developing embryos, and their study generates information on the origin of the terrestrial egg and the evolution of viviparity. In this research, the morphology of the extraembryonic membranes and the types of placentation in the
Cecilia de Dios‐Arcos, Maricela Villagrán‐SantaCruz   +1 more
openaire   +2 more sources

Validation of a Pregnancy‐Associated Glycoprotein–Based Lateral Flow Assay for Early Pregnancy Detection in Goats

Veterinary Medicine and Science, Volume 12, Issue 4, July 2026.
The commercial AOFPT developed to detect PAG molecules in bovine serum, was observed to be a rapid, practical, and effective method for early pregnancy diagnosis for to improve reproductive performance and herd management strategies in goats, especially following the post‐mating 28th day .
Mehmet Can Kara, Ayşe Merve Köse
wiley   +1 more source

Developmental Potential of Mouse Embryos without Extraembryonic Membranes in Modified Organ Culture [PDF]

, 2004
The long term stationary culture of postimplanatation embryos without extraembryonic membranes is a method to assess their developmental potential in vitro.
Tatjana Belovari, Kostović-Knežević, Ljiljana, Stević, Nataša, Srećko Gajović, Gajović, Srećko, Belovari, Tatjana, Ljiljana Kostović-Knežević, Nataša Stević   +7 more
core   +1 more source

Functional differences between the arteries perfusing gas exchange and nutritional membranes in the late chicken embryo [PDF]

, 2015
The chicken extraembryonic arterial system comprises the allantoic arteries, which irrigate the gas exchange organ (the chorioallantoic membrane, CAM) and the yolk sac (YS) artery, which irrigates the nutritional organ (the YS membrane).
Mohammed, Riazudin, Cavallaro, Giacomo, Riazudin Mohammed, Kessels, Carolina G. A., Carolina GA Kessels, Giacomo Cavallaro, Villamor, Eduardo, Eduardo Villamor   +7 more
core   +1 more source

Embryonic cerebrospinal fluid pressure in fetal mice in utero: External factors pressurize the intraventricular space

Developmental Dynamics, Volume 255, Issue 6, Page 533-547, June 2026.
Abstract Background Previous experiments inducing leakage of embryonic cerebrospinal fluid (CSF) suggest the necessity of intraventricular CSF pressure (PCSF) for brain morphogenesis. Nevertheless, how embryonic PCSF occurs is unclear, especially in utero. Results Using a Landis water manometer, we measured PCSF in fetal mice isolated from the amniotic
Koichiro Tsujikawa, Reina Muramatsu, Takaki Miyata   +2 more
wiley   +1 more source

Expression of calcium transporting proteins by the extraembryonic membranes of squamate reptiles

The FASEB Journal, 2007
Eighty percent of squamate reptiles (snakes and lizards) lay eggs; however, over 100 species bear live young. The evolutionary transition from oviparity to viviparity involves loss of the eggshell, an important source of calcium for developing embryos.
Patricia Cross, James R Stewart, Tom W Ecay   +2 more
openaire   +1 more source

Prominent Expression of Xenobiotic Efflux Transporters in Mouse Extraembryonic Fetal Membranes Compared with Placenta [PDF]

Drug Metabolism and Disposition, 2008
Fetal exposure to xenobiotics can be restricted by transporters at the interface between maternal and fetal circulation. Previous work identified transporters in the placenta; however, less is known about the presence of these transporters in the fetal membranes (i.e., yolk sac and amniotic membranes). The purpose of this study was to quantify mRNA and
Lauren M, Aleksunes, Yue, Cui, Curtis D, Klaassen   +2 more
openaire   +2 more sources