Results 221 to 230 of about 250,148 (263)
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Effects of organolead compounds on rat embryonic and fetal development
Toxicology and Applied Pharmacology, 1972Abstract Tetraethyl lead (TEL) and tetramethyl lead (TML) and trimethyl lead chloride (TriML), were found to be essentially nonteratogenic in Sprague-Dawley rats. Oral doses of TEL (7.5, 15, or 30 mg/kg), TML (40, 80, 112, or 160 mg/kg) and TriML (15, 30, or 38 mg/kg) were administered as 3 divided doses during early organogenesis (days 9, 10, and 11)
R M, McClain, B A, Becker
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Embryonic and fetal development of the red brocket deer (Mazama americana)
Theriogenology, 2019The red brocket deer (Mazama americana), a medium-sized Neotropical ungulate, is one of the most hunted mammals in the Amazon. This study analyzes the intrauterine development in the red brocket deer through the description of the external and internal morphology in one embryo and 38 fetuses collected from animals hunted for subsistence in the Amazon ...
Pedro, Mayor +7 more
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Phenolsulphotransferase: localization in kidney during human embryonic and fetal development
The Histochemical Journal, 1994The aim of our study was to localize phenolsulphotransferase (PST) in the developing mesonephric and metanephric kidneys of the human embryo and fetus using immunohistochemical methods with an antibody preparation recognizing members of the human phenolsulphotransferase enzyme family.
R, Hume, M W, Coughtrie
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Embryonic Stem Cells and Fetal Development Models
2016Pluripotent stem cells possess the unique capacity to proliferate indefinitely in culture and to differentiate into cells of the three germ layers, the endoderm, ectoderm and mesoderm. These important features render pluripotent stem cells ideal for both, basic studies in developmental biology and biomedical research in farm animals.
Monika Nowak-Imialek, Heiner Niemann
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The role of essential trace elements in embryonic and fetal development in livestock
The Veterinary Journal, 2003This review addresses the concept that essential trace minerals play a vital role in many enzymatic and metabolic pathways that are critical for conceptus development during pregnancy in livestock species. The conceptus relies entirely on the maternal system for a sufficient supply of trace minerals and other nutrients needed for normal development. If
Chris E, Hostetler +2 more
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Development of the tendon of todaro during the human embryonic and fetal periods
The Anatomical Record, 1994AbstractThis study covers the development of Todaro's tendon during human embryonic and fetal periods. The tendon primordium first appears when human embryos attain a CR length of 22 mm, but it only becomes well‐defined at 24 mm CR length. The tissue that will form the tendon proceeds exclusively from the inferior endocardial cushion.
J M, Domènech-Mateu +2 more
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Embryonic and fetal development of the white-lipped peccary (Tayassu pecari)
Theriogenology, 2018The white-lipped peccary (Tayassu pecari) is an endangered large-sized Neotropical ungulate that is one of the most hunted mammals in the Amazon. Here, we used two embryos and 102 white-lipped peccary fetuses originated from animals hunted for subsistence in the Peruvian and Brazilian Amazon to describe the intrauterine development of external and ...
Rafael Dos Santos, de Andrade +6 more
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A fetuin-related glycoprotein (?2HS) in human embryonic and fetal development
Cell and Tissue Research, 1987The human plasma protein, alpha 2HS glycoprotein, has an amino acid composition very similar to that of fetuin, the major protein in fetal calf and lamb serum. Immunohistochemical studies of human fetuses (6-33 weeks gestation) showed that alpha 2HS glycoprotein and fetuin have similar distributions in developing brain and several other tissues, e.g ...
K M, Dziegielewska +3 more
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Magnetic Resonance Imaging of Embryonic and Fetal Development in Model Systems
2006We give an overview of the applications and methods of high-resolution anatomical magnetic resonance imaging (MRI) in the study of embryonic and fetal development in animal models. Challenges associated with performing in utero studies are described. Recent in utero images in mouse and in nonhuman primates are presented.
Eric T, Ahrens +4 more
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Immunocytochemical characterization of lymphocyte development in human embryonic and fetal livers
Clinical Immunology and Immunopathology, 1989Lymphohemopoietic progenitor cells and the development of lymphocytes in human embryonic and fetal livers during the 4 to 11 weeks of gestation were examined immunocytochemically by using a panel of monoclonal antibodies. CD9+, CD10+, CD19+, and CD20+ cells of B cell lineage became detectable from the 8th gestational week. CD2+ and CD3+ cells of T cell
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