Results 11 to 20 of about 42,639 (193)
Visceral endoderm expression of Yin-Yang1 (YY1) is required for VEGFA maintenance and yolk sac development. [PDF]
PLoS ONE, 2013 Mouse embryos lacking the polycomb group gene member Yin-Yang1 (YY1) die during the peri-implantation stage. To assess the post-gastrulation role of YY1, a conditional knock-out (cKO) strategy was used to delete YY1 from the visceral endoderm of the yolk
Siyeon Rhee +5 more
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Origin and function of the yolk sac in primate embryogenesis
Nature Communications, 2020 Why do human embryos need a yolk sac and how does it form? This Perspective by Thorsten Boroviak and Connor Ross explores the development and function of the yolk sac in primate embryogenesis.
Connor Ross, Thorsten E. Boroviak
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Gastric Adenocarcinoma with Yolk Sac Tumor Differentiation and Liver Metastasis of Yolk Sac Tumor Component [PDF]
Case Reports in Oncological Medicine, 2013 Gastric adenocarcinoma with yolk sac tumor (YST) differentiation has rarely been reported. We report a case of primary gastric adenocarcinoma with yolk sac tumor differentiation and liver metastases of the YST component in a 50-years-old patient.
Chhagan Bihari +4 more
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Primary Gastric Yolk Sac Tumour
Sultan Qaboos University Medical Journal, 2018 Primary gastric yolk tumours are extremely rare. We report a 52-year-old male who presented to the Sultan Qaboos University Hospital, Muscat, Oman, in 2017 after having undergone a gastrectomy abroad due to a suspected poorly-differentiated ...
Asim Qureshi +4 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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Adult Pure Yolk Sac Tumor of The Testis
Online Journal of Health & Allied Sciences, 2012 Adult pure yolk sac tumor (YST) is extremely rare. In childhood pure yolk sac tumors are most frequently seen, whereas component of mixed germ cell testicular tumors observed in adults.
Sunil V Jagtap +2 more
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FECT OF EXPERIMENT AL YOLK SAC INFECTION WITH STAPHYLOCOCCUS
Pakistan Veterinary Journal, 2003 The present project was carried out to study the effect of experimental yolk sac infection with Staphylocvccus aureus on immune status of broiler chicks. For this purpose, one hundred day-old chicks were divided into two groups A and B.
M. F. Rai, S. A. Khan, A. Aslam. K. Saeed, 1K. A. Khan and M. S. Shah
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Optimizing transportation of fertilized eggs and yolk sac larvae of Silver Pompano (Trachinotus blochii) [PDF]
, 2023 Fish seed transport is one of the significant activities in fish farming. The study optimised the packing density of eggs and yolk-sac larvae of Trachinotus blochii in closed plastic bags without using any tranquillizers. The post-shipment survival after
Gomathi, P +10 more
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Poultry Science, 2022 : Zinc (Zn) deposition in egg yolk is essential for the rapid growth and complete development of the avian embryo. Thus, it is crucial to obtain maximal Zn mobilization at an appropriate time during development in favor of the survival of avian embryos ...
S.P. Bai +10 more
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Scientific Reports, 2023 This longitudinal study investigated the impact of actigraphy-measured maternal physical activity on yolk sac size during early development. The yolk sac, a transient extraembryonic organ, plays a crucial role in embryonic development and is involved in ...
Alexander Vietheer +7 more
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