0
Stem Cells
Stem cells are a biological cell that can turn into a specialized cell, and then divide to create more.
678 Questions
What are the names of cells in the stem?
There are three types of stem cells commonly found in the body: embryonic stem cells, induced pluripotent stem cells, and adult stem cells. Each of these stem cell types has different properties and capabilities for differentiation and regeneration.
How might fat cells help people with spinal cord injuries?
Fat cells can potentially be used in spinal cord injury treatment by promoting tissue regeneration and providing a source of stem cells for repair. These cells have the ability to differentiate into various cell types that can contribute to the healing process and support nerve regeneration in the damaged area. Additionally, fat cells can be harvested from a patient's own body, reducing the risk of rejection and facilitating personalized treatment.
What is the logical appeal for Stem Cell Research?
Stem Cell research has influence in diverse medical fields mostly in relation with the partial or almost total regeneration of organs and tissues. There is an increasing interest in its use in the treatment of heart pathologies among other fields.
Can stem cell research form tumors?
Stem cells are 'cells with no specialization', they can become almost any kind of cell, including a tumor. However, stem cell research is directed to the regeneration of cells in dysfunctional but constitutionally normal tissues and organs and therefore are not likely to form tumors.
What are the different types of cells in the kidney?
There are many different cell types in the kidney. Like in other organs, cells of the kidney can be divided into cells that make up the functional part of the kidney (called the parenchyma) and cells that make up the connective tissue and supporting structure of the kidney (the stroma). In studying an organ's cells, most focus on the parenchymal cells, because it is those cells that are typically unique to a given organ. This is true for the kidney.
Parenchymal cells of the kidney are those that make up the millions of functional units of the kidney, called nephrons. A nephron is a tubular structure divided into several segments. Depending on the source, the names of the segments vary; one useful way of dividing the nephron is into the following segments: proximal tubule, loop of Henle, distal tubule, and collecting duct.
Each nephron segment has several unique cells. The major cell of the proximal has no particular name, but is responsible for heavy-duty reabsorption of solutes and water from the fluid that's filtered from the blood.
The major cell of the thick ascending limb of the loop of Henle is a cell that contains a special transporter called the sodium-potassium-2 chloride cotransporter (NKCC). The action of these NKCC-containing cells allows the kidney to produce concentrated urine when an individual has gone without water for a while. These same cells are also targeted by a class of drugs (called loop diuretics) that treats high blood pressure. A very similar cell occurs later in the nephron; this cell uses the same NKCC protein to sense low volume states, such as when an individual has lost a large volume of blood.
The major cell of the distal tubule is a cell that contains the so-called thiazide-sensitive sodium chloride cotransporter (TSC). This cell is responsible for reabsorbing about 5% of the sodium filtered by the kidney each day. It is targeted by another type of drug (called thiazides) that treats high blood pressure.
The collecting duct contains two cell types, called principal cells and intercalated cells. Principal cells are predominantly responsible for sodium reabsorption and potassium secretion in the kidney. This process is stimulated in the principal cells by the action of the hormone aldosterone.
There are two types of intercalated cell in the collecting duct, but both are responsible for acid-base homeostasis. The alpha intercalated cell is responsible for secreting excess acid and reabsorbing base (in the form of bicarbonate). The beta intercalated cell is responsible for secreting excess base (bicarbonate) and reabsorbing acid.
The kidney has many other cell types besides these, but these are the most commonly referenced cells in discussions of kidney physiology.
What is wrong with stem cell research?
It is very difficult to classify stem-cell research as wrong, as it is a subjective (and very controversial) topic. The best way to find out whether it is 'right' or 'wrong' would be to determine it for yourself. It may be easier to do so once you know more about stem-cell research, by doing objective research and forming your own opinion. Here is the link to the 'What is stem-cell research?' question also on the wikianswers website: http://wiki.answers.com/Q/What_is_the_difference_between_embryonic_stem_cells_and_adult_stem_cells&alreadyAsked=1&rtitle=Stem_cell_research
If cancer is present what is the likely explanation for what happened to cells B and D?
The choices are
-they were harmed by radiation therapy
-they died off because the cancerous cells deprived them of nutrients
-they died off due to natural causes
- they thrived with the cancerous cells
There is currently no cure for multiple sclerosis (MS), but treatments are available to help manage symptoms, slow disease progression, and improve quality of life. These treatments may include medications to reduce inflammation, physical therapy to improve strength and mobility, and lifestyle modifications such as stress management and a healthy diet. It's important for individuals with MS to work closely with healthcare providers to develop a personalized treatment plan.
What is the function of dicot stem cell?
Epidermis The structure and functions of this tissue are the same as those of the epidermis of the stem of a dicotyledonous plant. The epidermis consists of a single layer of living cells which are closely packed. The walls are thickenedand covered with a thin waterproof layer called the cuticle. Stomata with guard cells are found in the epidermis. In some stems either unicellular or multicellular hair-like outgrowths, trichomes, appear from the epidermis. * Functions * The epidermis protects the underlying tissues. * The cuticle prevents the desiccation of inner tissues and thus prevents water loss . * The stomata allows gaseous exchange for the processes of respiration and photosynthesis. Ground Tissue This region is composed of small, thick-walled sclerenchyma on the inside of the epidermis. These layers of cells are followed by larger thin-walled parenchyma cells. Intercellular air spaces are found in the parenchyma. A cortex or pith is absent. * Functions * Sclerenchyma tissue strengthensthe stem. * Parenchyma tissue stores synthesised organic food such as starch. * Intercellular air spaces allow the exchange of gases. Vascular Bundles The vascular bundles are found scattered throughout the ground tissue. The vascular bundles occurring nearer the rind of the stemare smaller and are closer to one another. The vascular bundles contain no cambium and consequently secondary thickening does not occur. The vascular bundle is composed of the following parts:* Sclerenchyma sheath Thick-walled sclerenchyma fibres surround the vascular bundle. ** Function of the Sclerenchyma sheath ** Sclerenchyma sheaths protect the vascularbundles and give strength to the stem. * Xylem Large xylem vessels are found within an irregular intercellular air space called the lysigenous cavity. This space is surrounded by thin-walled parenchyma cells. ** Functions of the Xylem ** Xylem transports water and dissolved ionsfrom the root system to the stem. ** The lignified thick-walled xylem cells strengthen the stem. * Phloem Phloem is composed of thin-walled cells, viz. sieve tubes and companion cells. ** Function of the Phloem ** The phloem transports synthesized organic food such as carbohydrates from the leaves to other parts of the plant
What is the definition of stem cell research?
The research of undeveloped cells in aborted fetuses. These cells can be inserted into a diseased or abnormal part of a person's body and they can develop into whatever kind of cell they're surrounded by. This can repair and heal the affected area.
a stem cell line is a group of stem cells that has the ability to produce one specific type of cell. for example, one stem cell line could have the ability to produce a kidney, while another line could produce a liver.
From where does a stem cell receives a signal for differentiating in to a new type of cell?
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.
Why is there a stem cell debate?
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.
What you mean by stem cell culture?
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.
What is the function of rays in the pine stems?
The cause of stem cell reaserch?
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...
What are the three stages of the human life cycle when stem cells can be found?
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.
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.
Why does the differentiation of stem cells only occur in immature animals?
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.
Could stem cells be used to prevent death?
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, it has edible stem and contains:
- More than 7 times the vitamin C content present in oranges
- More than 4 times the calcium content in milk, and double the protein
- More than 4 times the vitamin A content contained in carrots
- More than 3 times the potassium of bananas
- More than 3 times the amount of iron in almonds
The above comparison is comparing fresh Moringa leaves to the other foods on a gram to gram basis. A typical serving of fresh Moringa leaves in 1 cup or 20 grams.
In answer to the original question about the stem, Moringa is a single stemmed tree that really needs to be pruned to encourage multiple stems and branching.
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.
