Results 21 to 30 of about 243,861 (265)

Development of Human Embryonic and Fetal Dermal Vasculature

open access: yesJournal of Investigative Dermatology, 1989
This report summarizes recent advances in the understanding of the structure and organization of the microvasculature in developing human skin. Previous observations suggested that the skin contains no blood vessels as late as eight weeks estimated gestational age (EGA).
C L, Johnson, K A, Holbrook
openaire   +2 more sources

Embryonic and fetal development in different genotypes in pigs [PDF]

open access: yesBioscientifica Proceedings, 2020
It is widely accepted that uterine capacity, not ovulation rate, is the greatest restraint on litter size in pigs. Recently, the reproductive strategy(s) of the Chinese Meishan pig, a breed which farrows three to five more piglets per litter than US or European pig breeds, has come under intense scrutiny.
openaire   +2 more sources

Inhibin and activin in embryonic and fetal development in ruminants [PDF]

open access: yesBioscientifica Proceedings, 2019
Inhibin, activin and follistatin are protein hormones with diverse physiological roles. The involvement of inhibin in the regulation of pituitary FSH production and secretion in adult males and non-pregnant females is well established. However, it is unlikely that inhibin plays a similar role in pregnancy in ruminants.
G, Jenkin, J, McFarlane, D M, de Kretser
openaire   +2 more sources

Revisiting the enigmatic cortical calretinin-expressing interneurons

open access: yesFrontiers in Neuroanatomy, 2014
Cortical calretinin (CR)-expressing interneurons represent a heterogeneous subpopulation of about 10-30% of GABAergic interneurons, which altogether total ca. 12-20% of all cortical neurons.
Bruno eCauli   +10 more
doaj   +1 more source

Developmental and reproductive toxicity assessment in rats with KGC-HJ3, Korean Red Ginseng with Angelica gigas and Deer antlers

open access: yesJournal of Ginseng Research, 2019
Background: Korean Red Ginseng has been widely used in traditional oriental medicine for a prolonged period, and its pharmacological effects have been extensively investigated.
Jinsoo Lee   +9 more
doaj   +1 more source

Modeling Human Organ Development and Diseases With Fetal Tissue–Derived Organoids

open access: yesCell Transplantation, 2022
Recent advances in human organoid technology have greatly facilitated the study of organ development and pathology. In most cases, these organoids are derived from either pluripotent stem cells or adult stem cells for the modeling of developmental events
Jianqing Liang   +3 more
doaj   +1 more source

High-definition ultrasonography for evaluation of embryonic and fetal development in bitch

open access: yesArquivo Brasileiro de Medicina Veterinária e Zootecnia, 2022
In women, high-definition ultrasonography provides high-quality images of normal and diseased tissues throughout pregnancy, however there are no veterinary studies describing the use of this technology in pregnant dogs.
M.C. Maronezi   +9 more
doaj   +1 more source

Fetal and trophoblast PI3K p110α have distinct roles in regulating resource supply to the growing fetus in mice

open access: yeseLife, 2019
Studies suggest that placental nutrient supply adapts according to fetal demands. However, signaling events underlying placental adaptations remain unknown.
Jorge López-Tello   +12 more
doaj   +1 more source

Murine exposure to gold nanoparticles during early pregnancy promotes abortion by inhibiting ectodermal differentiation

open access: yesMolecular Medicine, 2018
Background Gold nanoparticles (AuNPs) have been widely studied for biomedical applications, although their safety and potential toxicity in pregnancy remains unknown.
Hui Yang   +4 more
doaj   +1 more source

Fertilization and normal embryonic and early fetal development

open access: yes, 2021
The anatomy and physiology of placental and embryonic development is a field where medicine exerts its greatest impact on early pregnancy at present time, and it opens fascinating aspects of embryonic differentiation. Clinical assessment of those stages of growth relies heavily on three-dimensional (3D) and four-dimensional (4D) sonography, one of the ...
Asim Kurjak   +4 more
openaire   +2 more sources

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