نتایج جستجو برای: chicken embryo amniotic fluid
تعداد نتایج: 323247 فیلتر نتایج به سال:
An accumulated turbidity and the presence of many bacilli in the plasma surrounding lepromatous tissue culture explants has been emphasized by Timofejewsky (1) and by Suwo and Kin (2) as indicating the multiplication of free bacilli in the plasma itself. Since this inference seems unwarranted by the observations made during the preceding studies with tissue cultures, it is desired to explain wh...
Ingestion of amniotic fluid and placenta by rats has been shown to enhance opioid-mediated analgesia. The present studies were designed to examine the effect of several doses and volumes of placenta and amniotic fluid on tail-flick latency in rats treated with 3 mg/kg morphine. The optimal dose of amniotic fluid was found to be 0.25 ml, although 0.50 and 1.0 ml also produced significant enhance...
BACKGROUND The aims of this study were to evaluate the efficacy of current techniques for isolating mesenchymal stem cells (MSCs) from amniotic fluid obtained by second-trimester amniocentesis as well as to determine their differentiation potential. METHODS We collected 50 samples of amniotic fluid by second-trimester amniocentesis. To obtain MSCs from amniotic fluid, the fluid was cultured u...
Perfluorooctanoic acid (PFOA) is an environmental contaminant that could induce developmental cardiotoxicity in a chicken embryo, which may be alleviated by l-carnitine. To explore the roles of reactive oxygen species (ROS) and nitric oxide (NO) in such changes and the potential effects of l-carnitine, fertile chicken eggs were exposed to PFOA via an air cell injection, with or without l-carnit...
چکیده ندارد.
The ontogeny of insulin-like growth factor-I (IGF-I) embryonic and extra-embryonic tissue concentrations were determined in the developing turkey embryo. At 2-d intervals, starting on Day 6 of incubation, individual tissues (n = 8 for each stage of incubation) were removed, weighed, pulverized, and extracted in 1 M acetic acid for IGF-I determination. Amniotic and allantoic fluid were collected...
The fetal intestinal mucosa is characterized by elevated Toll-like receptor 4 (TLR4) expression, which can lead to the development of necrotizing enterocolitis (NEC)--a devastating inflammatory disease of the premature intestine--upon exposure to microbes. To define endogenous strategies that could reduce TLR4 signaling, we hypothesized that amniotic fluid can inhibit TLR4 signaling within the ...
Intramembranous absorption increases during intra-amniotic infusion of physiological saline solutions. The increase may be due partly to the concomitant elevation in fetal urine production as fetal urine contains a stimulator of intramembranous absorption. In this study, we hypothesized that the increase in intramembranous absorption during intra-amniotic infusion is due, in part, to dilution o...
The presence of contaminating maternal cells in amniotic fluid is an important, though infrequent, cause of error in karyotyping the fetus. A method of detecting contaminating maternal cells in amniocentesis specimens by determining the HLA phenotype of the cells of amniotic fluid and the mother is described. Tissue typing of 15 amniocentesis specimens was performed, and in 14 cases the fetal o...
stem cells, the last of which can be obtained from fetal tissues, including amniotic fluid [5]. Analyses of human amniotic fluid have been used as safe and reliable screening tools for fetal genetic and congenital diseases for many years [6]. Amniotic fluid contains cells originating from both embryonic and extraembryonic tissues (amnion, placenta, fetus skin, and respiratory, gastrointestinal,...
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