Results 61 to 70 of about 42,639 (193)
Association between abnormal Yolk Sac Appearance and early spontaneous Abortion. A Cohort study.
The yolk sac is essential in early life of the embryo because the yolk sac is the first route of exchange between the embryo and the mother. OBJECTIVE: To determine the association of the spontaneous abortion with the abnormal morphology ...
geddoa, salam abdulsahib
core +1 more source
Direct Effects of Microalgae and Protists on Herring (Clupea harengus) Yolk Sac Larvae.
This study investigated effects of microalgae (Rhodomonas baltica) and heterotrophic protists (Oxyrrhis marina) on the daily growth, activity, condition and feeding success of Atlantic herring (Clupea harengus) larvae from hatch, through the end of the ...
Björn Illing +3 more
doaj +1 more source
IntroductionThe chicken egg, with its in ovo compartments, is a widely used and popular animal model in experimental studies. This study aimed to quantify the volumes of the yolk/yolk sac, amniotic fluid, and chicken embryo in ovo using non-invasive ...
Felix Streckenbach +15 more
doaj +1 more source
Malignant germ-cell tumors GCT are rare tumors of childhood accounting for less than 3% of pediatric malignancies. Endodermal sinus tumors EST form the most common histologic subtype of malignant GCT. The vagina is an extremely rare site for GCTs. An 8-month-old female was admitted with a short history of vaginal bleeding, and a mass protruding from ...
Parvin, Mahzouni +2 more
openaire +2 more sources
In mice, the yolk sac appears to play a crucial role in nourishing the developing embryo, especially during embryonic days (E) 7–10. Lipoprotein synthesis and secretion may be essential for this function: embryos lacking apolipoprotein (apo) B or ...
Yuko Terasawa +9 more
doaj +1 more source
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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Electrolyte and Water Balance of the Early Avian Embryo: Effects of Egg Turning
Formation of sub-embryonic fluid (SEF) is a key aspect of the physiology of the early avian embryo.Here we review the process of SEF formation and the factors which influence its composition and the rate of SEF production and depletion in the Japanese ...
Latter, G.V. +2 more
core +1 more source
Background: A 10-year-old girl presented to the emergency department with acute abdominal pain in the right fossa. There was no known previous medical history. She had a fever up to 38,4°C without any complaints of nausea, vomiting or diarrhea.
Thielen, T Van, Degryse, H, Coeman, D
openaire +5 more sources
Yolk Sac Tumor of the Thyroid Gland: A Case Report
Extragonadal yolk sac tumors are uncommon and usually seen in sacrococcygeal, mediastinal, intracranial, and retroperitoneal sites. Yolk sac tumors of the head and neck region are rare, and the few reported cases have arisen in neonates or infants in ...
Harlan R. Muntz +5 more
core +1 more source
Yolk sac utilization in ostrich (Struthio camelus) chicks : research communication
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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