Results 61 to 70 of about 42,639 (193)

Association between abnormal Yolk Sac Appearance and early spontaneous Abortion. A Cohort study.

open access: yes, 2020
  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.

open access: yesPLoS ONE, 2015
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

Longitudinal volumetric analysis of in ovo compartments in chicken eggs using ultra-high-field magnetic resonance imaging

open access: yesFrontiers in Veterinary Science
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

Yolk sac tumor of the vagina

open access: yesSaudi Medical Journal, 2007
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

Apolipoprotein B-related gene expression and ultrastructural characteristics of lipoprotein secretion in mouse yolk sac during embryonic development

open access: yesJournal of Lipid Research, 1999
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

Tumor Mediastinum Anterior (Yolk Sac Tumor) pada Seorang Laki-Laki Dewasa Muda: Sebuah Kasus yang Jarang [Yolk Sac Tumor in a Young Man: A Rare Case]

open access: yesJurnal 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
doaj   +1 more source

Electrolyte and Water Balance of the Early Avian Embryo: Effects of Egg Turning

open access: yes, 2002
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

Yolk sac tumor of the ovary

open access: yesJournal of the Belgian Society of Radiology, 2013
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

open access: yes, 2011
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

open access: yesOnderstepoort 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
doaj   +1 more source

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