Results 51 to 60 of about 39,281 (265)
The mammalian yolk sac placenta [PDF]
Journal of Experimental Zoology Part B: Molecular and Developmental Evolution, 2008 AbstractThere are three fetal membranes in mammals, namely the yolk sac, allantois and amnion, but only the first two form a placenta. In Monotremata (monotremes), Marsupialia (marsupials) and Placentalia (eutherians), the yolk sac transfers nutrients originating from uterine glandular secretion or the maternal blood.
Claudia, Freyer, Marilyn B, Renfree
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Hyperosmolality tolerance of freshwater largemouth bass ( Micropterus salmoides ) to brackish at early ontogenetic stages: Eggs, embryos and yolk-sac larvae [PDF]
, 2023 Du Luo, Dingtian Yang
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Diagnostic Cytopathology, EarlyView.ABSTRACT Malignant mesothelioma (MM) is a rare yet aggressive neoplasm that arises from mesothelial cells lining the thoracic and abdominal cavities, the pericardium, and the tunica testis. Characterized by rapid progression, high invasiveness, and a poor prognosis, MM poses significant clinical challenges. SMARCB1, also referred to as INI‐1, hSNF5, or
Jun Yang +4 more
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, 2023 Costantino Ricci +12 more
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A comprehensive embryonic staging series of the turtle Trachemys scripta
Developmental Dynamics, EarlyView.Abstract Background Turtles hold a unique place in vertebrate evolutionary history, making them critical assets in embryology research. Yet, they remain understudied as potential model organisms in the field. Here, to support experimental manipulations with turtle embryos, we have created a complete normal table of development for comprehensive ...
Christina M. Noravian +6 more
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Jurnal Respirasi, 2016 Background: Primary mediastinal yolk sac tumor is an extremely rare and highly malignant tumors occuring in children and young adult. They are more common in men.
Risnawati Risnawati, Laksmi Wulandari
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Developmental Dynamics, EarlyView.Abstract Background CD163 is a scavenger receptor predominantly expressed on the surfaces of macrophages in various mammalian species and is a marker of anti‐inflammatory (M2‐like) macrophages. High density of CD163‐positive tumor‐associated macrophages (TAMs) is associated with worse prognosis in various patient tumors.
Yoichi Saito +9 more
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A rare case of primary mediastinal yolk sac tumor
Archives of Medicine and Health Sciences, 2014 Yolk sac tumor (endodermal sinus tumor) is a subtype of germ cell tumor and a highly malignant neoplasm. In addition to presenting in ovaries and testes, the tumor has been detected at several extragonadal sites, including the presacral area, the ...
Vinay Mahishale +4 more
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Developmental Dynamics, EarlyView.Abstract Background Sporadic venous malformation (VM) is associated with the hyperactivating p.L914F mutation in TIE2, a receptor tyrosine kinase essential for vascular development. This mutation is not found in hereditary VM, suggesting incompatibility with life when expressed during early vascular development.
Lindsay J. Bischoff +6 more
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Yolk sac utilization in ostrich (Struthio camelus) chicks : research communication
Onderstepoort Journal of Veterinary Research, 2004 The mass of residual yolk sac expressed as a percentage of initial mass of the egg from which the chick hatched decreased sharply in the first 2 days post-hatching.
E.Z. Mushi, M.G. Binta, R.G. Chabo
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