Stem cell Essay Example For Students

Stem cell Essay Few recent scientific issues have stimulated so much media attention, public debate and government involvement as that of Stem cell Essay research. Stem cells offer people hope by promising to greatly extend the number and range of patients who could benefit from transplants, and to provide novel therapies to treat debilitating diseases such as diabetes, Parkinsons, Huntingtons, heart disease and stroke, as well as accidental damage such as spinal cord injury. So why would anyone object to research in this area? The problem is simply that a particular type of stem cell, which potentially could provide many cell types for a wide range of therapeutic uses, is obtained from the very early embryo. To make matters even more contentious, the same cloning technology that gave Dolly the sheep could in theory be used to tailor stem cells to the patient. Some people worry that we are taking research too far down paths that make them feel uncomfortable, others think it is downright immoral and against their deep-held, often religious, beliefs. We will write a custom essay on Stem cell specifically for you for only $16.38 $13.9/page Order now But what are the scientific issues and why do many of us feel equally passionate that the research should be allowed? What are meant by stem cells and how might they be used? There are many types of stem cell, but they share several interesting properties that set them aside from other cell types. The adult body contains hundreds of specialised or differentiated cell types, each playing a particular role. Some of these are long lived and do not divide, such as nerve cells; others are short lived and need to be replaced through cell division. Usually, when cells divide, their daughter cells are identical and of the same type as the parent cell. In other words they divide symmetrically. Additionally, their fate and their properties are fixed once a liver cell, always a liver cell. In contrast, stem cells undergo asymmetric divisions, producing both another stem cell, in a process called self-renewal, and a cell that will become differentiated. The differentiated cell may still be able to divide, but it cannot normally go back to form the original type of cell. In some circumstances stem cells can increase their numbers, giving rise only to more stem cells. However, stem cells in the adult are usually in tune with the tissue to which they belong. They divide at the appropriate rate to self renew and to give rise to just sufficient differentiated cells to replenish those that have been lost. However, with accidental trauma or disease the normal rate of regeneration is often too slow to allow for repair. This is particularly true within the nervous system, but also in other tissues where turnover is low, such as the pancreas. How can we harness stem cells to cure diseases? We have become very used to the idea of organ transplants in medicine, to treat a wide range of problems from cataracts to kidney or heart disease. However, we are also all aware of the frequency with which they fail, often through immune rejection, and there is also a serious shortage of organ donors. Both problems could be solved if tissue could be taken from one part of the body to repair another part of the same individual. There are relatively few cases where this is done at present, e.g. using valves from leg veins to repair heart valves. Rather than using whole donor organs or tissues, an alternative would be to use the stem cells able to form those tissues. In fact this is already done with bone marrow transplants, where the stem cells in the graft can regenerate all the different types of cell in the blood. Other types of stem cell could be used in a similar way. For example, the correct stem cell type might allow specific cell types to be replaced in the nervous system, where it is impossible to transplant whole structures. The idea is to identify and remove the stem cells from a particular tissue, multiply them outside of the body and then use them to replace damaged tissue. .uff2848da78ff94d10ae98a9dc00b73a6 , .uff2848da78ff94d10ae98a9dc00b73a6 .postImageUrl , .uff2848da78ff94d10ae98a9dc00b73a6 .centered-text-area { min-height: 80px; position: relative; } .uff2848da78ff94d10ae98a9dc00b73a6 , .uff2848da78ff94d10ae98a9dc00b73a6:hover , .uff2848da78ff94d10ae98a9dc00b73a6:visited , .uff2848da78ff94d10ae98a9dc00b73a6:active { border:0!important; } .uff2848da78ff94d10ae98a9dc00b73a6 .clearfix:after { content: ""; display: table; clear: both; } .uff2848da78ff94d10ae98a9dc00b73a6 { display: block; transition: background-color 250ms; webkit-transition: background-color 250ms; width: 100%; opacity: 1; transition: opacity 250ms; webkit-transition: opacity 250ms; background-color: #95A5A6; } .uff2848da78ff94d10ae98a9dc00b73a6:active , .uff2848da78ff94d10ae98a9dc00b73a6:hover { opacity: 1; transition: opacity 250ms; webkit-transition: opacity 250ms; background-color: #2C3E50; } .uff2848da78ff94d10ae98a9dc00b73a6 .centered-text-area { width: 100%; position: relative ; } .uff2848da78ff94d10ae98a9dc00b73a6 .ctaText { border-bottom: 0 solid #fff; color: #2980B9; font-size: 16px; font-weight: bold; margin: 0; padding: 0; text-decoration: underline; } .uff2848da78ff94d10ae98a9dc00b73a6 .postTitle { color: #FFFFFF; font-size: 16px; font-weight: 600; margin: 0; padding: 0; width: 100%; } .uff2848da78ff94d10ae98a9dc00b73a6 .ctaButton { background-color: #7F8C8D!important; color: #2980B9; border: none; border-radius: 3px; box-shadow: none; font-size: 14px; font-weight: bold; line-height: 26px; moz-border-radius: 3px; text-align: center; text-decoration: none; text-shadow: none; width: 80px; min-height: 80px; background: url(https://artscolumbia.org/wp-content/plugins/intelly-related-posts/assets/images/simple-arrow.png)no-repeat; position: absolute; right: 0; top: 0; } .uff2848da78ff94d10ae98a9dc00b73a6:hover .ctaButton { background-color: #34495E!important; } .uff2848da78ff94d10ae98a9dc00b73a6 .centered-text { display: table; height: 80px; padding-left : 18px; top: 0; } .uff2848da78ff94d10ae98a9dc00b73a6 .uff2848da78ff94d10ae98a9dc00b73a6-content { display: table-cell; margin: 0; padding: 0; padding-right: 108px; position: relative; vertical-align: middle; width: 100%; } .uff2848da78ff94d10ae98a9dc00b73a6:after { content: ""; display: block; clear: both; } READ: Same Sex Marriages Essay This is already done to some extent to repair skin in burn victims, where a small piece of skin can be grown to cover a burn many times the area . Stem Cell Essay Example For Students Stem Cell Essay Oh the Healing Possibilities What if Superman was able to walk again? Christopher Reeves was the actor we all knew as Superman. A few years ago he had a horse-back riding accident which left him paralyzed from the neck down. His spinal cord was severed and there was nothing doctors could do to help him but, there might be hope for him after all. There is a great new field of research in which scientists are trying to find ways to solve these types of problems along with many others. Research in the use of Stem Cell Essays holds limitless possibilities in the medical field. We will write a custom essay on Stem Cell specifically for you for only $16.38 $13.9/page Order now Stem cells are the cells in our bodies that are in their primitive form. These cells have not yet become the type of cell they are destined to be, whether it be nervous tissue or another. However, even though stem cell research is a great new field, its progress is being limited by moral concerns and ethical questions. In order to let medicine reach its full potential, stem cell research should be legalized in throughout the 50 states. Knowledge of these cells would save countless lives and should not go un-tapped. Knowledge about stem cells is quite limited as of the present day. There has not been that many experiments done considering the amount that could be carried out if only it was legal. Research with stem cells is very hard to complete since it is outlawed in 48 of the 50 United States. Only California and New Jersey allow such research to be carried out within their borders. In order for any advancement to be made, people would have to except this kind of research as a much needed action and which has to be done. Also, as of right now, only 60 lines of stem cells are available for research globally. Most of these 60 lines are also held by foreign nations which make it extremely difficult for any laboratory in the United States to acquire any sample to experiment with. Some people share such views as the President of the United States, George Bush, that the amount of stem cells available will be sufficient for research. This idea, however, is not held by many scientists and biochemists alike. A reaction taken from an article from Dr. Sanjay Gupta expresses the feelings of one biochemist of the University of Pennsylvania. I think were going to really have a problem here in fulfilling what George Bush promised, and that is that what is out there is enough. said Arthur Caplan. It seems to be very clear that the availability of these stem cells is the reason knowledge is limited on the subject. This amount of cells would be able to increase greatly if only all 50 states legalized the research. Without this research, the United States will surely be passed up by other countries in the medical field. Despite the fact the U.S. wants to be ahead of other nations, many American citizens could be cured of their ailments and their lives would be able to be saved. The possibilities with the use of stem cells seem to be almost endless. So many good things could come out of using these ideas in modern medicine such as a cure for eltzhymers and diabetes. The fundamental idea behind stem cells is that one would be able to use these cells to create any type of cell that is needed. A doctor would be able to use this technique to cure some ailments that were previously considered incurable. Diseases and injuries such as paralysis could be cured by simply re-growing certain types of cells. This also means that any tissue would be able to me duplicated using ones own DNA. .u10ee853d9c3dc36ecbb91c08b347d982 , .u10ee853d9c3dc36ecbb91c08b347d982 .postImageUrl , .u10ee853d9c3dc36ecbb91c08b347d982 .centered-text-area { min-height: 80px; position: relative; } .u10ee853d9c3dc36ecbb91c08b347d982 , .u10ee853d9c3dc36ecbb91c08b347d982:hover , .u10ee853d9c3dc36ecbb91c08b347d982:visited , .u10ee853d9c3dc36ecbb91c08b347d982:active { border:0!important; } .u10ee853d9c3dc36ecbb91c08b347d982 .clearfix:after { content: ""; display: table; clear: both; } .u10ee853d9c3dc36ecbb91c08b347d982 { display: block; transition: background-color 250ms; webkit-transition: background-color 250ms; width: 100%; opacity: 1; transition: opacity 250ms; webkit-transition: opacity 250ms; background-color: #95A5A6; } .u10ee853d9c3dc36ecbb91c08b347d982:active , .u10ee853d9c3dc36ecbb91c08b347d982:hover { opacity: 1; transition: opacity 250ms; webkit-transition: opacity 250ms; background-color: #2C3E50; } .u10ee853d9c3dc36ecbb91c08b347d982 .centered-text-area { width: 100%; position: relative ; } .u10ee853d9c3dc36ecbb91c08b347d982 .ctaText { border-bottom: 0 solid #fff; color: #2980B9; font-size: 16px; font-weight: bold; margin: 0; padding: 0; text-decoration: underline; } .u10ee853d9c3dc36ecbb91c08b347d982 .postTitle { color: #FFFFFF; font-size: 16px; font-weight: 600; margin: 0; padding: 0; width: 100%; } .u10ee853d9c3dc36ecbb91c08b347d982 .ctaButton { background-color: #7F8C8D!important; color: #2980B9; border: none; border-radius: 3px; box-shadow: none; font-size: 14px; font-weight: bold; line-height: 26px; moz-border-radius: 3px; text-align: center; text-decoration: none; text-shadow: none; width: 80px; min-height: 80px; background: url(https://artscolumbia.org/wp-content/plugins/intelly-related-posts/assets/images/simple-arrow.png)no-repeat; position: absolute; right: 0; top: 0; } .u10ee853d9c3dc36ecbb91c08b347d982:hover .ctaButton { background-color: #34495E!important; } .u10ee853d9c3dc36ecbb91c08b347d982 .centered-text { display: table; height: 80px; padding-left : 18px; top: 0; } .u10ee853d9c3dc36ecbb91c08b347d982 .u10ee853d9c3dc36ecbb91c08b347d982-content { display: table-cell; margin: 0; padding: 0; padding-right: 108px; position: relative; vertical-align: middle; width: 100%; } .u10ee853d9c3dc36ecbb91c08b347d982:after { content: ""; display: block; clear: both; } READ: Flag Desecration Essay This great advantage could mean the end to having transplanted organs rejected by the body which would increase survival chances of patients. If someone experienced problems such as heart or liver failure, doctors would simply be able to form a new organ using stem cells from the patients body. A great testament to this idea comes from Dr. John McDonald who is the current nerve doctor for Christopher Reeve. Dr. Mcdonald is the director of the Spinal Cord Injury Unit . Stem cell Essay Example For Students Stem cell Essay Stem cell Essay Research One of the most popular clinical studies being researched these days is stem cell transplantation. Until recently, moral issues of states and countries havent allowed research to expound deeply into the unknowns. Within the last ten years though, scientists have made leaps and bounds in finding out concrete facts that this stem cell research has supplied. Tommy G. Thompson, Secretary of Health Services states, ;I believe it will open up a world of opportunity for scientists, not only at the NIH, but elsewhere, because it demonstrates a cooperative atmosphere among academia, the private sector, and government that will allow us to move ahead; (;sign stem;1). We will write a custom essay on Stem cell specifically for you for only $16.38 $13.9/page Order now New ways of conducting stem cell research have made the healing and repairing treatment for many diverse applications. To prove their point, scientists have broken down the basic facts of their studies throughout the last ten years. Embryonic stem cell transplantation is a related course of cells that are in charge of certain functions and systems of the body. The cells used in the transplantation process are contrived from ;cryopreserved suspensions; from the fetal liver, thymus, bone marrow, spleen, brain, and the pancreas. Introducing these cells to the body can be approached in different ways. The first step taken is engrafting or multiplying cells in the affected area. These cells will then supplement missing or declining cells and replace/repair missing functions of the body. Production then commences with considerable amounts of biologically active substances such as nerve growth factor, tumor necrosis factor and interleukins etc. When these cells have been transplanted, they are capable of migrating, establishing intercellular links and responding to various effects. However, because of their immature transplantation to the human body, these cells cause a weaker immune response than mature cells. Alexander Smikodub, a doctor of Medical Science at the National Medical University states, ;cells that we use are not considered by the immune system of the recipient as foreign, therefore, they can survive, multiply, and develop full function in the body of a new host; Smikodub). These cells can then survive and multiply, capable of lasting for months and years in the body of the recipient. In the areas where tissue or organs have been damaged or lost, they substitute the lack of functional activities. These cells can also produce new generations of cells that are needed by the patient. When strategically placed, they can support, restore and replace the functions of their specialization in the body. These methods have never received such success with amazing reparative and rejuvenating actions and effects. Scientists working with this field for the last decade have explained the steps observed from their view in detail. After the transplantation occurs, there appear positive changes in emotional and psychological sphere of the patient. In this period, the disappearance of depression, improvement in mental creativity and an inner feeling of strength are a few of the results immediately noticeable. In all of these changes occurring, there is a substantial reinforcement of the will and spirit of the person. With some diseases, these changes are very drastic and very important due to the grim and psychological background of the case. Mental capacity also increases quite soon, creating better concentration and ability to maintain attention, thinking, speech and memory. Some of the neurotic manifestations of the patient tend to disappear beginning with irritability, easy fatigue and apathy. At this time sleep improves and insomnia disappears with sleep becoming refreshing and recuperative. While their sleep is improving, patients also find that their physical activity likewise increases. Desiring to move, they persistently increase their physical load of bodily functions and workout. In this process, overweight people tend to become more in shape and skinny people increase weight. Overall, their appearance gains freshness and rejuvenation of presence. Some of the biggest changes taking place at this time are movements that the patient could previously not accomplish at any level. The coordination of movement being restored, the nerve system is directly affected for the better. .u77a9f67a17d90eece71b38229d0ba126 , .u77a9f67a17d90eece71b38229d0ba126 .postImageUrl , .u77a9f67a17d90eece71b38229d0ba126 .centered-text-area { min-height: 80px; position: relative; } .u77a9f67a17d90eece71b38229d0ba126 , .u77a9f67a17d90eece71b38229d0ba126:hover , .u77a9f67a17d90eece71b38229d0ba126:visited , .u77a9f67a17d90eece71b38229d0ba126:active { border:0!important; } .u77a9f67a17d90eece71b38229d0ba126 .clearfix:after { content: ""; display: table; clear: both; } .u77a9f67a17d90eece71b38229d0ba126 { display: block; transition: background-color 250ms; webkit-transition: background-color 250ms; width: 100%; opacity: 1; transition: opacity 250ms; webkit-transition: opacity 250ms; background-color: #95A5A6; } .u77a9f67a17d90eece71b38229d0ba126:active , .u77a9f67a17d90eece71b38229d0ba126:hover { opacity: 1; transition: opacity 250ms; webkit-transition: opacity 250ms; background-color: #2C3E50; } .u77a9f67a17d90eece71b38229d0ba126 .centered-text-area { width: 100%; position: relative ; } .u77a9f67a17d90eece71b38229d0ba126 .ctaText { border-bottom: 0 solid #fff; color: #2980B9; font-size: 16px; font-weight: bold; margin: 0; padding: 0; text-decoration: underline; } .u77a9f67a17d90eece71b38229d0ba126 .postTitle { color: #FFFFFF; font-size: 16px; font-weight: 600; margin: 0; padding: 0; width: 100%; } .u77a9f67a17d90eece71b38229d0ba126 .ctaButton { background-color: #7F8C8D!important; color: #2980B9; border: none; border-radius: 3px; box-shadow: none; font-size: 14px; font-weight: bold; line-height: 26px; moz-border-radius: 3px; text-align: center; text-decoration: none; text-shadow: none; width: 80px; min-height: 80px; background: url(https://artscolumbia.org/wp-content/plugins/intelly-related-posts/assets/images/simple-arrow.png)no-repeat; position: absolute; right: 0; top: 0; } .u77a9f67a17d90eece71b38229d0ba126:hover .ctaButton { background-color: #34495E!important; } .u77a9f67a17d90eece71b38229d0ba126 .centered-text { display: table; height: 80px; padding-left : 18px; top: 0; } .u77a9f67a17d90eece71b38229d0ba126 .u77a9f67a17d90eece71b38229d0ba126-content { display: table-cell; margin: 0; padding: 0; padding-right: 108px; position: relative; vertical-align: middle; width: 100%; } .u77a9f67a17d90eece71b38229d0ba126:after { content: ""; display: block; clear: both; } READ: Hacking For Money Essay These changes that are occurring can happen quickly of over an extended period of time depending on the patients situation. On the interior of the patient, recovery commences at a steady pace beginning with weakened or damaged .