Results 41 to 50 of about 42,639 (193)

Transport of maternal LDL and HDL to the fetal membranes and placenta of the Golden Syrian hamster is mediated by receptor-dependent and receptor-independent processes

open access: yesJournal of Lipid Research, 1998
Maternal lipoproteins provide nutrients to the fetus via the placenta, yolk sac, and uterine membrane plus decidua. To determine the transport processes that are responsible for the removal of lipoproteins from the maternal circulation, we measured the ...
Kathleen L. Wyne, Laura A. Woollett
doaj   +1 more source

Bacterial Contamination in the Components of the Chickens' Eggs

open access: yesThe Iraqi Journal of Veterinary Medicine, 2020
In 120 hen eggs ( local eggs , hatching eggs and table eggs ) a bacteriological pollution with high rate was observed by isolating 427 bacterial isolates from which 199 isolates related to the egg's shell , 117 isolates related to albumen sac, and 111 ...
S. A. Abed
doaj   +1 more source

Yolk sac tumor of cryptorchid testis diagnosed by fine needle aspiration cytology

open access: yesJournal of Cytology, 2015
Yolk sac tumor is the most common germ cell tumor in infants and children. Majority of them arise in the gonads. Yolk sac tumor of undescended testis has been rarely diagnosed.
Monisha Choudhury   +3 more
doaj   +1 more source

Yolk sac tumors of the testis [PDF]

open access: yesCancer, 1970
The discovery of 2 yolk sac carcinomas of the mouse has established a basis in comparative pathology for the occurrence of this type of tumor in other species with yolk sacs. Grafts and tissue cultures of extra-embryonic yolk sac of the mouse have developed a clear understanding of the types of tissues one might expect in yolk sac carcinomas.
G B, Pierce   +2 more
openaire   +2 more sources

Yolk sac count matters

open access: yes, 2019
Yolk sac is the first anatomical structure identified within the gestational sac at 5+ weeks and is diagnostic of intrauterine pregnancy. It is attached through the yolk stalk with the intestinal cavity of the embryo and is supplied with blood vessels ...
Todani, Kiralata, Todani, Ashok K.
core   +2 more sources

The mammalian yolk sac placenta [PDF]

open access: yesJournal 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
openaire   +2 more sources

Yolk sac centroid size

open access: yes, 2015
Yolk sac centroid ...
Brendan Nedelec (3273471)   +9 more
core   +1 more source

Free iron accumulation and oxidative stress burden induce ferroptotic atrophy of chicken yolk sac during the late embryogenesis

open access: yesAnimal Research and One Health
The aim of this study was to investigate the mechanism of iron homeostasis and the ferroptosis pathway for yolk sac atrophy during late embryogenesis. To study the mechanism of yolk sac atrophy, 100 eggs were used. Further, 500 eggs were randomly divided
Huichao Liu   +3 more
doaj   +1 more source

Ontogeny of plasma cells in the early rat yolk sac [PDF]

open access: yes, 2003
The present study investigated the development of plasma cells in the early rat yolk sac (days 10-16 of gestation) by light microscopy, transmission electron microscopy, immunoelectron microscopy, and indirect immunofluoresce techniques.
El-Nefiawy, Nagwa   +9 more
core   +1 more source

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