Stem Cells

Stem cells receive signals from their surrounding environment, known as the cellular microenvironment or niche. These signals can come from neighboring cells, growth factors, or other molecules present in the microenvironment. The combination of signals received by the stem cell helps it to make decisions on whether to remain a stem cell or differentiate into a specific type of cell.

The debate you refer to is about the ethics of embryonicstem cell research. This involves harvesting stem cells from a fertilised egg, once it has reached the Blastocyst stage- not an embryo yet. Many Christians see this as killing a human life. Now it is possible to produce stem cells using the same process as cloning.This can produce stem cells which match the DNA of the recipient. As long as cloning human beings is not the aim (and it is not) then I see nothing unethical about this. One of the deseases stem cell researchers are trying to find a cure for is Diabetes.It may well be possible , using stem cells, to coax the pancreas into producing its own insulin. Standard Leftist Propaganda and opinion (not factual): The multinational pharmacutical industry does not want this to happen.The production of insulin is a multi- billion dollar industry. The Christian right and the media have happily supported them, launching a massive propaganda campaign against stem cell research. They hippocritically talk of ethics while actively keeping people sick, so they can continue to profit from them. Barack Obama has said he intends to reverse the anti-stem cell legislation and funding cuts imposed by the Bush administration. I hope he can find the money to do it, and get past the Republicans' filibusting.

Stem cell culture refers to the process of growing and maintaining stem cells in a laboratory setting. This involves providing the necessary conditions, such as specific growth factors and nutrients, to support the proliferation and differentiation of stem cells. Stem cell culture is essential for research, drug development, and regenerative medicine applications.

Cause....I am guessing this means the purpose of or reason for.

The reason for studying it is that if we can eventually control and manipulate the potential of stem cells we can use them to "grow" organs, limbs etc. The fear surrounding this of course is that we can also use these cells to make a whole new person...

The three stages of the human life cycle when stem cells can be found are embryonic stage (during early embryonic development), fetal stage (during fetal development), and adult stage (in various tissues and organs throughout adulthood).

Cell culture is the process by which prokaryotic, or eukaryotic cells are grown under controlled conditions. In practice the term "cell culture" has come to refer to the culturing of cells derived from multicellular eukaryotes, especially animal cells. The historical development and methods of cell culture are closely interrelated to those of tissue culture and organ culture. Wikipedia.com thank you Cells are reproduced outside their natural environment. Examples: drug testing, vaccines, artificial tissue(skin), stem cells.

spermatogonia

Stem cells were not invented by a specific person, but rather their existence was discovered through scientific research. In the 1960s and 1970s, scientists Ernest McCulloch and James Till demonstrated the presence of stem cells in bone marrow. Since then, stem cells have been extensively studied and their potential for medical treatments has been recognized.

The differentiation of stem cells is not limited to immature animals. Stem cells have the ability to differentiate into specialized cell types in both immature and mature animals. However, the potential and efficiency of differentiation may vary depending on the developmental stage and the specific type of stem cell. In general, embryonic stem cells have a greater capacity for differentiation compared to adult stem cells, which may have more limited potential to differentiate into specific cell lineages.

It cannot stall death itself, but they could potentially be used to cure many diseases. U sure cuz it could repair heart and other organs wen they deteriorate. This is also true for the brain so yea i think they mite prevent death

Yes, stem cells are unspecialized cells that have the potential to develop into different types of specialized cells in the body. They can divide and replicate to produce more stem cells, or they can differentiate into specific cell types depending on the signals they receive from their environment.

Stem cells are able to treat cancer. the healthy stem cells transplanted into the patients bone marrow start producing healthy blood cells. if this can happen, maybe scientists will think of ways to use stem cells not only for cancer patients.

Yes, patients with VP (ventriculoperitoneal) shunts can potentially receive intrathecal stem cell therapy. However, careful consideration and evaluation of the patient's condition and shunt function would be necessary to ensure the procedure is safe and appropriate. Consultation with a neurosurgeon and stem cell specialist would be recommended to determine the best course of action.

A morula (mulberry) is an early stage in the development of the embryo at which it consists of a solid spherical ball of apparently identical cells. The morula stage is when one of the earliest prenatal diagnostic test can be carried out, by removing a single cell (blastomere) and carrying out genetic diagnosis on its DNA. Each one could develop into a complete animal (or human) since they are genetic the same.

The biggest disadvantage of using unipotent stem cells for medical treatment is their limited differentiation potential. Unipotent stem cells can only differentiate into a specific type of cell, which restricts their ability to treat a wide range of conditions or injuries. This narrow differentiation capacity hinders their potential for regenerative medicine compared to pluripotent stem cells that can differentiate into various cell types.

You can donate stem cells for medical research, however they are less useful than that of the afterbirth of infants. Stem cells are blank cells which are used in the production of specialized cells in the body.

If stem cells mature into erythrocytes (red blood cells), they will become specialized for oxygen transport in the body. Erythrocytes are responsible for carrying oxygen from the lungs to the rest of the tissues and organs, as well as removing carbon dioxide waste. They have a unique biconcave shape and lack a nucleus to maximize their capacity for oxygen-carrying.

Yes, adult stem cells have been used to treat a variety of conditions including certain types of cancer, immune disorders, blood disorders, and bone and cartilage diseases. Additionally, adult stem cells have shown promising results in the treatment of heart diseases and neurological disorders such as Parkinson's disease and spinal cord injuries.

The erythrocyte (RBC), leukocyte (WBC) and the platelets are all formed in bone marrow. While the erythrocyte and leukocyte are produced from the hematopoietic stem cells, the platelets are are derived from fragmentation of precursor megakaryocytes.

There are many different cells in the human body. The different cells in the body are generally grouped into tissues that have similar properties. The four main groups of tissues in the body are, muscular, nervous, connective, and epithelial.

There are 3 classes of cells in the human body. Labile cells, stable cells, and permanent cells. Labile cells are dividing all the time--always in the cell cycle. Examples include cells in the digestive tract, skin, respiratory tract, and stem cells in the bone marrow producing blood cells. Stable cells are in Gap O most of the time in the cell cycle, but can be stimulated to enter the cell cycle when needed. Examples include: the liver, the proximal tubules of the kidney, and endocrine glands. Permanent cells remain in the Gap 0 phase of the cell cycle, and will not come out no matter what!!! RBC's, nervous tissue, cardiac myocytes, and the lens of the eye are examples. Permanent cells cannot be replaced!!

totipotency is the ability of stem cells to differentiate into all the 216 different cell types in the body. In the blastocyst stage the outer layer of cells form the placenta, but the inner layer of cells forms the embryo but it doesnt have the ability to differentiate into cell types such as the placenta. These cells are called pluripotent stem cells.

adult body cells have a function where as embryonic stem cells have no set function as of that stage. now there are some adult stem cells and those have little to no difference than embryonic stem cells

the embryo is killed