Results 11 to 20 of about 8,535 (205)
Prominent Expression of Xenobiotic Efflux Transporters in Mouse Extraembryonic Fetal Membranes Compared with Placenta [PDF]
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+2 more
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Extraembryonic Membranes and Placentation in the Mexican Snake Conopsis lineata
ABSTRACTExtraembryonic 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 viviparous snake Conopsis lineata are ...
Cecilia de Dios‐Arcos+1 more
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AbstractHighly mineralized rigid‐shelled eggs characterize one lineage of gekkotans. In contrast, poorly mineralized flexible‐shelled eggs characterize basal lineages of gekkotans and all other squamates. Low oxygen permeability of rigid‐shelled eggs is associated with small eggs and hatchlings, and long incubation lengths compared to flexible‐shelled ...
Robin M. Andrews
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Significant contributions of the extraembryonic membranes and maternal genotype to the placental pathology in heterozygous Nsdhl deficient female embryos. [PDF]
Cunningham D+5 more
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Expression of calcium transporting proteins by the extraembryonic membranes of squamate reptiles
Patricia Cross+2 more
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Liver disorders have been increasing globally in recent years. These diseases are associated with high morbidity and mortality rates and impose high care costs on the health system.
Mohammad Amin Shahrbaf+4 more
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The involvement of the proamnion in the development of the anterior amnion fold in the chicken. [PDF]
The amnion was one of the most important evolutionary novelties in the animal kingdom, allowing independence of water for reproduction and subsequent exploration of terrestrial habitats, and is therefore an important structure to understand evolution. We
Ana de Melo Bernardo+1 more
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Pregnancy loss predominantly occurs during the first 3–4 weeks due to fertilization failure or early embryonic losses in cattle. Insufficient biochemical communication between conceptus (embryo plus extraembryonic membranes) and endometrium has been ...
Kazuya Kusama+7 more
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Chorioallantoic Membrane Assay at the Cross-Roads of Adipose-Tissue-Derived Stem Cell Research
With a history of more than 100 years of different applications in various scientific fields, the chicken chorioallantoic membrane (CAM) assay has proven itself to be an exceptional scientific model that meets the requirements of the replacement ...
Dmytro Oliinyk+4 more
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Oldest preserved umbilical scar reveals dinosaurs had ‘belly buttons’
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+3 more
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