trophoblast


Also found in: Thesaurus, Medical, Encyclopedia, Wikipedia.

tro·pho·blast

 (trō′fə-blăst′)
n.
The outermost layer of cells of the mammalian blastocyst that attaches the fertilized ovum to the uterine wall and serves as a nutritive pathway for the embryo.

tro′pho·blas′tic adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

trophoblast

(ˈtrɒfəˌblæst)
n
(Biology) the outer layer of cells of the embryo of placental mammals, which is attached to the uterus wall and absorbs nourishment from the uterine fluids
[C19: from tropho- + -blast]
ˌtrophoˈblastic adj
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

troph•o•blast

(ˈtrɒf əˌblæst, ˈtroʊ fə-)

n.
the layer of extraembryonic ectoderm that nourishes the embryo or develops into fetal membranes with nutritive functions.
[1885–90]
troph`o•blas′tic, adj.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.trophoblast - the membrane that forms the wall of the blastocyst in early development; aids implantation in the uterine wall; "after implantation of the blastocyst in the uterine wall the trophoblast divides into two layers, the chorion and the placenta"
blastosphere, blastula - early stage of an embryo produced by cleavage of an ovum; a liquid-filled sphere whose wall is composed of a single layer of cells; during this stage (about eight days after fertilization) implantation in the wall of the uterus occurs
tissue layer, membrane - a pliable sheet of tissue that covers or lines or connects the organs or cells of animals or plants
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
Translations
References in periodicals archive ?
"We believe these changes may explain how exercise improves the metabolism of the obese mother during pregnancy and, in turn, may prevent her babies from developing early signs of type 2 diabetes after birth," Amanda Sferruzzi-Perri, a Royal Society Dorothy Hodgkin Research Fellow from the Centre for Trophoblast Research in the Department of Physiology, Development and Neuroscience at the University of Cambridge, (https://www.cam.ac.uk/research/news/exercise-in-pregnancy-improves-health-of-obese-mothers-by-restoring-their-tissues-mouse-study-finds) said in a statement.
'A moderate level of exercise immediately before and then during pregnancy leads to important changes in different tissues of the obese mother, effectively making the tissues more like those seen in non-obese mothers,' says Dr Amanda Sferruzzi-Perri, a Royal Society Dorothy Hodgkin Research Fellow from the Centre for Trophoblast Research in the Department of Physiology, Development and Neuroscience at the University of Cambridge, who co-led the study.
"A moderate level of exercise immediately before and then during pregnancy leads to important changes in different tissues of the obese mother, effectively making the tissues more like those seen in non-obese mothers," said co-leader Dr Amanda Sferruzzi-Perri, a Royal Society Dorothy Hodgkin Research Fellow from the Centre for Trophoblast Research in the Department of Physiology, Development and Neuroscience at the University of Cambridge.
Cardinal features of preeclampsia include, but are not limited to, decreased trophoblast proliferation and increased apoptosis, impeded differentiation of trophoblast, and impaired migration and invasiveness of the trophoblast in the uterus, resulting in defective spiral artery remodeling (6-10).
It was composed of communicated network of thin fetal capillaries lined by flat endothelial cells that were surrounded by trophoblast cells which separated them from the maternal sinusoids (Fetomaternal barrier).
Vega and his colleagues cultivated trophoblast cells from three healthy women scheduled for manual vacuum aspiration during the first trimester of pregnancy to study the effects of insulin exposure alone, while trophoblast cells were cultured from a different set of women for the insulin and metformin follow-up experiments.
2004), immune response, and differentiation of several tissues, including the placenta and trophoblast (Barak et al.
Gestational trophoblastic diseases are proliferative disorders of the placental trophoblast, of either nonneoplastic (hydatidiform moles) or true neoplastic (gestational trophoblastic tumors) proliferation.
Trop2, also known as tumor-associated calcium signal transducer 2 and trophoblast cell surface antigen 2, is a transmembrane glycoprotein that functions as an intracellular calcium signal transducer.
Vaginal bleeding, unlike tubal pregnancy, is not typical because of the relatively better trophoblast development.
The placenta is formed as a result of the process of implantation, proliferation, and differentiation of the trophoblast; it is a vital organ for the survival, growth, and development of the embryo and fetus.
Professor Graham Burton, director of Cambridge University's Centre for Trophoblast Research, who was a member of the research team, said: "These 'mini-placentas' build on decades of research and we believe they will transform work in this field."