Results 31 to 40 of about 202,014 (308)

Influences of Salinity on Embryonic and Larval Development of Striped Catfish Pangasianodon hypophthalmus

open access: yesFrontiers in Marine Science, 2021
Salinity intrusion in coastal areas due to climate change is alarming. In this study, the effects of salinity on embryonic and larval development of striped catfish (Pangasianodon hypophthalmus) were studied experimentally.
Farzana Hossain   +6 more
doaj   +1 more source

A sinonasal yolk sac tumor in an adult [PDF]

open access: yesJournal of Pathology and Translational Medicine, 2022
Yolk sac tumors (YSTs), which are also called endodermal sinus tumors, are malignant tumors of germ cell origin. These tumors usually occur in the gonads, but 20% of cases have been reported at extragonadal sites. The head and neck is a rarely affected region that accounts for just 1% of all malignant tumors of germ cell origin. In addition, YSTs arise
Jaehoon Shin   +3 more
openaire   +3 more sources

Yolk Sacs in Twin Pregnancy [PDF]

open access: yesActa geneticae medicae et gemellologiae: twin research, 1998
AbstractOBJECTIVE. The purpose of this study was to evaluate the relationship between the yolk sacs separated or not separated by septum and chorionicity twin pregnancies scanned early in the first trimester, and the relation between size and morphologic features of the yolk sac and the outcome of twin pregnancies.RESULTS.
openaire   +4 more sources

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 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.
Degryse H, Coeman D, Van Thielen T
openaire   +6 more sources

Change of zinc mobilization and gene expression of key zinc transport proteins between the yolk sac membrane and liver of duck embryonic developing

open access: yesPoultry 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
doaj  

Size and Shape of yolk sac as a predictor of pregnancy outcome [PDF]

open access: yesEgyptian Journal of Medical Research, 2022
Background: it is estimated that approximately 30% to 40% of implanted pregnancies resulted in spontaneous abortion during the first trimester, most of which occur in very early stage.
Merehan Hewidy   +2 more
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

Kit ligand has a critical role in mouse yolk sac and aorta–gonad–mesonephros hematopoiesis

open access: yesEMBO Reports, 2018
Few studies report on the in vivo requirement for hematopoietic niche factors in the mammalian embryo. Here, we comprehensively analyze the requirement for Kit ligand (Kitl) in the yolk sac and aorta–gonad–mesonephros (AGM) niche.
E. Azzoni   +8 more
semanticscholar   +1 more source

Gluconeogenesis in the Yolk Sac Membrane: Enzyme Activity, Gene Expression, and Metabolites During Layer Chicken Development

open access: yesThe Journal of Poultry Science, 2023
Yolk sac membranes of layer eggs were collected daily (n = 7–9) from day three of incubation to day three post-hatch, and mRNA expression and activities were quantified for key gluconeogenesis enzymes (glucose-6-phosphatase, fructose-1 ...
Mitsuhiro Shibata   +2 more
doaj   +1 more source

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