embryonic tissue


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embryonic tissue

Any tissue that arises from the fertilization of an ovum and has not become differentiated or specialized.
See also: tissue
References in periodicals archive ?
(F, G): Sagittal sections through Khat-treated embryos with no visible embryonic tissues observed in the deciduae.
Mesoderm: The middle cell of embryonic tissue which forms bone, connective tissue, muscle, blood, vascular and lymphatic tissue.
The need for large amounts of human embryonic tissue has to be circumvented and a better understanding of the relationship between graft placement and symptomatic recovery is necessary before this procedure can be offered to larger groups of patients.
Rather, one could envisage that transacting factors might be either induced or activated by the embryonic tissue extract in the senescent cells, thus augmenting transcriptional activities that may be prerequisites for the activation of cellular DNA synthesis.
Many scientists also contend that the best source for stem cells may be from human embryonic tissue. But there is currently a federal ban on the allocation of government funds for many kinds of embryonic research, especially for research involving unused in vitro fertilized zygotes.
Now, after cloning the cells taken from a foetus aborted years ago, US scientists believe they can avoid bans on working with human embryonic tissue
If he and others in this field can establish the design principles of embryonic tissue formation, it will be possible to repurpose those same principles for regenerative medicine and tissue engineering applications.
They also applied the same factors to mouse cells and found, surprisingly, that the newly derived mouse stem cells could not only give rise to embryonic tissue types but also differentiate into cells from the extra-embryonic lineages.
Associate Professor Tiziano Barberi and Dr Isabella Mengarelli from the Australian Regenerative Medicine Institute at Monash University have, for the first time, derived and purified lens epithelium - the embryonic tissue from which the lens of the eye develops.
On 5 January 2007, the Minister of Health published regulations for public comment, regarding the use of human DNA, RNA, cultured cells, stem cells, blastomeres, polar bodies, embryos, embryonic tissue and small tissue biopsies for diagnostic testing, health research and therapeutics.
As the name implies, the former are derived from embryonic tissue and possess the greatest potential to differentiate into a wide range of cell types, although it has proven difficult to direct their differentiation pathway.
Bush: The president's opposition to the Oregon law is part of his "pro-life" agenda that includes opposition to abortion and to the use of embryonic tissue in stem-cell research.