Sentences with phrase «tissues as an embryo»

So part of how you make the tissues as an embryo develops is exactly those type of mechanical stresses.

Not exact matches

According to Science Daily, Dr. Nagy, senior investigator at the Samuel Lunenfeld Research Institute of Mount Sinai Hospital, there is a «new method of generating stem cells that does not require embryos as starting points and could be used to generate cells from many adult tissues such as a patient's own skin cells.»

The difficulties associated with obtaining nerve tissue at the correct stage of development and differentiation from aborted embryos means that foetal tissue transplantation is no longer in favour, but the creation of human embryos specifically as sources of stem cells, and the push to use «spare» embryos from IVF treatments is gatheringmomentum.

I suggested that IVF technology would soon be used to create embryos as «tissue banks.»

Whilst acknowledging that many questions remain unanswered in the debate between those who would advocate the use of stem cells taken from human embryos, and those experimenting on stem cells drawn from tissues of the adult human body, there is a lengthy discussion of the moral status of the human embryo as being a crucial matter in this regard.

The development of an elaborate crystalline skeleton within the transparent embryo of the sea urchin provides a model for the shaping of hard mineralized tissues such as shell and bone

Measuring a few millimetres across, the pieces of intestinal tissue made by the month - long process contain all the cells and features found in normal gut tissue, and grow by the same route as in embryos.

The committee says the 14 - day mark is an appropriate limit as the cells of the embryo are not yet differentiated into tissues, in that there is no organized development.

«The embryos lack all [cell types known as] mesoderm and endoderm and are left with skin and some neural tissue, [which derive from the third major cell type, the ectoderm].»

Should parents be allowed to pick embryos for specific tissue types so that their new baby can serve as a donor for an ailing sibling?

During development, as an embryo forms differentiated tissues, liver cells, brain cells, muscle cells, the cells in those tissues begin to allow for the selective expression of genes contained in those same 3 billion nucleotides.

Pluripotent stem cells include embryonic stem cells, which are derived from early embryos, and induced pluripotent stem cells, which are made by reprogramming cells taken from adult tissues such as skin.

When transporter function is disrupted by a chemical inhibitor considerably more dye accumulates in the embryo tissues — the embryo tissues appear brighter as the image below shows.

«Oocyte and embryo freezing are regarded as established,» he said, «but ovarian tissue cryopreservation is considered experimental, although it is the only option for prepubertal girls.»

They have generated excitement over the past few decades because scientists can study them in the laboratory to discover the genetic switches that control the development of specialized tissues in the embryo and fetus, and also because of their potential to replace body tissues that have broken down, such as pancreatic cells in those with diabetes or heart muscle cells in those with congestive heart failure.

The application is on hold, the agency has told him, as NIH reconsiders its rules for the kind of experiments he wants to do: mixing human stem cells into very early animal embryos and letting them develop, a strategy that could produce tissues or organs for transplantation.

«Our findings will provide a significant new tool for tissue engineering, bioprocessing of stem cells and also for better studying early development processes such as axis formation in embryos,» said Bratt - Leal.

The finding, reported by researchers at Harvard T.H. Chan School of Public Health, Northeastern University, and MIT, provides insights into organ formation in an embryo, healing of a wound, and even invasion of cells into surrounding tissue, as occurs in cancer.

When normal cells are transformed into cancer cells, this epithelial tissue can take on the characteristics of embryonic tissue, known as mesenchymal tissue, which is comprised of unspecialized cells that will develop, as the embryo matures, into more specialized tissues.

Overton studied the elaborate structures on the surfaces of cells in order to understand how single cells established and maintained connections with their partners as they matured to form different types of tissues in the developing embryo.

A second line of research is to use skeletal muscle formation in the chick embryo as a model to understand how cells within tissues display complex behaviours while being exposed to an ever - changing cellular environment.

However, while hESCs are created from human embryos, iPS cells are cells that were originally from adult tissues, such as skin from an adult body, but have been «reprogrammed» to a hESC - like state.

Because the cells were derived from human embryos or fetal tissue, pro-life groups condemned embryonic stem cell research as morally wrong.

Stem cells are cells found primarily in embryos, and they have not yet taken on the characteristics of any particular type of cell, such as bone, muscle tissue or brain matter.

In a developing embryo, stem cells can differentiate into all the specialized cells, but also maintain the normal turnover of regenerative organs, such as blood, skin, or intestinal tissues.

Understanding the conditions that cause these cells to go off to different fates may have a bearing on health problems such as ectopic pregnancy, which occurs when the embryo develops outside of the womb in about 1 of 60 pregnancies, or molar pregnancy, which is abnormal tissue growth within the uterus that affects about 1 in every 1,000 pregnancies.