The aim of this study was to determine whether the blood vessels of the murine allantois are formed by vasculogenesis or angiogenesis. Morphological analysis revealed that differentiation of allantoic mesoderm into an outer layer of mesothelium and an inner vascular network begins in the distal region of the allantois, which is most remote from other tissues, as early as the late neural plate s...

The major components of the mammalian placental membranes are an epithelial surface layer, the trophoblast, and a heavily vascularized mesenchyme, the allantoic mesenchyme. The trophoblast layer makes the most intimate contact with maternal tissues and it displays a wide range of unusual, often invasive, phenotypes. However, one common feature of trophoblast development in all species is a stro...

Allantoic cysts are a somewhat rare entity. They are identifiable on antenatal ultrasound examination but are not easily distinguishable from pseudocysts, which are often associated with a poor prognosis. Their etiology remains obscure and obstructive uropathies have been proposed to be one of the underlying mechanisms. We report on a case in which both allantoic cysts and a patent urachus were...

The ureides, allantoin and allantoic acid, are major forms of N transported from nodules to shoots in soybeans (Merr.). Little is known about the occurrence, localization, or properties of the enzymes involved in the assimilation of ureides in shoot tissues. We have examined the capacity of the shoot tissues to assimilate allantoin via allantoinase (EC 3.5.2.5) during leaf and fruit development...

Newcastle disease virus (NDV) exhibits oncolysis in its natural form. This oncolytic (OV) has the potential to specifically infect, propagate, and lyse cancer cells while sparing normal cells. study was aimed screen for NDV strain isolated from poultry. A total of ten velogenic strains were propagated 10 day old embryonated SPF chicken eggs allantoic fluid these infected collected further study...