Results 21 to 30 of about 240,921 (300)

Embryonic and Fetal Heart Development Before 12 Weeks of Gestation [PDF]

open access: bronzeJournal of Ultrasound in Medicine
ObjectiveTo assess embryonic and fetal cardiac growth and development using transvaginal 2‐dimensional sonography before 12 weeks of gestation.MethodsTransvaginal scans for first‐trimester dating were performed for 131 normal fetuses at 8–11 + 6 weeks of gestation.
Toshiyuki Hata   +4 more
openalex   +3 more sources

POGZ Is Required for Silencing Mouse Embryonic β-like Hemoglobin and Human Fetal Hemoglobin Expression

open access: yesCell Reports, 2018
Summary: Fetal globin genes are transcriptionally silenced during embryogenesis through hemoglobin switching. Strategies to derepress fetal globin expression in the adult could alleviate symptoms in sickle cell disease and β-thalassemia.
Bjorg Gudmundsdottir   +16 more
doaj   +1 more source

Superovulation of female mice delays embryonic and fetal development [PDF]

open access: yesHuman Reproduction, 2001
Mouse and human embryos, cultured in vitro, undergo a delay in development compared with those grown in vivo. This delay can be caused by suboptimal culture conditions, but possible influences of ovarian stimulation cannot be excluded. The objective of this study was to test the hypothesis that both in vitro and in vivo, preimplantation embryonic ...
I, Van der Auwera, T, D'Hooghe
openaire   +2 more sources

Effect of long-acting injectable progesterone supplementation, seven days after insemination, on embryo and fetal development in Nellore cows [PDF]

open access: yesArquivo Brasileiro de Medicina Veterinária e Zootecnia
This study evaluated the effects of long-acting injectable progesterone supplementation (P4LA) on embryonic and fetal development and birth weight in Nellore cows seven days after timed artificial insemination (TAI).
L.N. Silenciato   +7 more
doaj   +1 more source

Prenatal Development and Function of Human Mononuclear Phagocytes

open access: yesFrontiers in Cell and Developmental Biology, 2021
The human mononuclear phagocyte (MP) system, which includes dendritic cells, monocytes, and macrophages, is a critical regulator of innate and adaptive immune responses. During embryonic development, MPs derive sequentially in yolk sac progenitors, fetal
Mohi Miah   +4 more
doaj   +1 more source

Circadian clocks during embryonic and fetal development

open access: yesBirth Defects Research Part C: Embryo Today: Reviews, 2007
AbstractCircadian rhythmicity is a fundamental characteristic of organisms, which helps ensure that vital functions occur in an appropriate and precise temporal sequence and in accordance with cyclic environmental changes. Living beings are endowed with a system of biological clocks that measure time on a 24‐hr basis, termed the circadian timing system.
Serón Ferré, María   +2 more
openaire   +3 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

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

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