... Stem cell therapy Irfan manzoor. Roll no: RP7002B22. Reg. no: 11000225. Course: Bsc. Biotech 1. Lovely professional university Contents 1. Stem cells and properties. 2-3 2. Stem cell therapy. 5-12 3. Stem cell use in animals 13-15 4. Recent researches in stem cell therapy 16-19 5. Conclusion 21 6. Bibliography 22 Stem cells Stem cells are cells found in all multi cellular organisms. They are characterized by the ability to renew themselves through mitotic cell division and differentiate into a diverse range of specialized cell types. Research in the stem cell field grew out of findings by Ernest A. McCulloch and James E. Till at the University of Toronto in the 1960s. The two broad types of mammalian stem cells are: embryonic stem cells that are isolated from the inner cell mass of blastocysts, and adult stem cells that are found in adult tissues. In a developing embryo, stem cells can differentiate...
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...Stem Cell Therapy Stem cells are virtually limitless. They have the potential to treat a huge range of diseases and conditions that debilitate millions of people around the world. Stem cell research is teaching us more about birth defects and how they can be prevented or possibly reversed. There are three major types of stem cells, embryonic, adult, and induced pluripotent stem cells. Embryonic stem cells are derived from undifferentiated inner mass cells of a human embryo. Adult stem cells are undifferentiated cells found throughout the body that divide to replenish dying cells and regenerate damaged tissues, also known as somatic stem cells. Induced pluripotent stem cells are adult stem cells that have been genetically reprogrammed to an embryonic stem cell like state by being forced to express genes and factors important for maintaining the defining properties of embryonic stem cells. There are so many possible medical uses for stem cells. Stem cells, directed to differentiate into specific cell types, offer the possibility of a renewable source of replacement cells and tissues to treat diseases including Alzheimer’s disease, spinal cord injuries, stroke, burns, heart disease, diabetes, osteoarthritis, and rheumatoid arthritis. We also have a way to safely test new drugs. Stem cell controversy is an ethical debate primarily concerning the creation, treatment, and destruction of human embryos. This controversy has motivated and reinvigorated the pro-life movement. These...
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...Usefulness of Stem Cell Therapy Biology 103 SUMMARY A potential treatment for stroke victims is stem cell therapy. Stem cell therapy has made great advancement in this area. However, it is still in the trial phase and has only been tested on animals. The research article I reviewed showed that regardless of which type of stem cell was used either allogenic bone marrow mesenchymal stem cells (BM-MSC) or adipose-derived-stem cells (AD-MSC) the results were incredible. The hypothesis was that if either BM-MSC or AD-MSC was given to a stroke victim within 30 minutes of the stroke that it would increase the effectiveness of their recovery. The method used to test the hypothesis was four test groups of ten rats. Each group was given different variables and then tested at the 24 hour mark after the stroke and at the 14 day mark after the stroke. The results validated the hypothesis, the two groups that had been administered either of the stem cells BM-MSC or AD-MSC showed vast improvements in their recovery. At the 24 hour mark they were functioning well ahead of the groups that did not receive the stem cells and at the 14 day mark they had made almost a full recovery. What is a stem cell? It does not matter the source of a stem cell, they are all unspecialized cells that are converted into more specialized cells (Biology Junction, ND). Stem cells have the capability of becoming one of more than 200 specialized cells in the body (Biology Junction, ND). The function of stem cells is to...
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...Stem cell research and therapy Stephanie Reeves Rasmussen College Author Note This paper is being submitted on August 3, 2014, for Ellen Doyles’ Human Biology course. Stem cell research and therapy Stem cell research has great significance for medical use. They have the ability to develop into many different cell types in the body during early life and growth. They can also serve as a repair system to many tissues, by dividing without limitation to replenish other cells as long as the person or animal is still alive. Stem cells are the body’s raw materials. Stem cell research has created quite the controversy and has been a topic of debate for over a decade. There are 3 types of stem cells that are currently being used in stem cell research and therapies; Embryotic, Adult, and induced pluripotent stem cells. There are a few characteristics that differ between these types of stem cells Embryotic stem cells can become all cell types of the body because they are pluripotent, and can be grown relatively easy in culture. Adult stem cells are thought to be limited to differentiating into different cell types of their tissue origin, and are rare in mature tissues which makes it difficult to isolate these cells in adult tissue, and methods to expand their numbers in cell culture has not been worked out as of today. Induced pluripotent stem cells are adult cells that have been genetically altered to have properties of embryonic stem cells. ...
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...discovery of stem cell therapy, it has been a controversial topic of long debate of moral ethics and politically. The discovery of stem cells and their ability to generate new cells began in the 1800’s. Today the topic of research therapy makes headlines with its controversy with the use of embryonic stem cells. Historically stem cell research includes plant, animals and human stem cells but today the prominent use of stem cells in humans is bone marrow transplant. This has become a simple one day medical procedure that is one of a lesser debate. Complete strangers can now simply be tested for a compatible match to an awaiting recipient. This type of success has brought stem cell to the forefront of medical researches discovery of other stem cell therapies that are futuristic in nature and have the possible to cure devastating disease and injuries that would otherwise leave someone completely debilitated or worse. Stem cell therapy is on the verge of being a revolutionary medical advancement in history. The discovery that stem cells could generate new healthy cells in the 1800’s had revolutionized the medical profession. Blood marrow transplant are the front runner of the success that stem cells can produce. This is the prominent force that guides researcher to believe that stem cells can be a cure for many diseases such as Parkinson’s disease, immune deficiency disease, certain types of leukemia’s, severe blood disorders and traumatic injuries to the spine and brain. A stem cell...
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...Stem cell research is a massive topic of discussion within many groups of people around the world. Whether it is right or wrong is the question, however in stem cell research there is no such thing as wrong. People are usually against stem cell research because they are also against abortion and there are horror stories of the experiences patients and pathologists have had with abortion. People believe that stem cell research gets embryonic stem cells from an abortion clinic what an abortion clinic does with the fetuses is either send them to a pathology facility or they just throw them away in the trash. Stem cell research does not use aborted fetuses or embryos for collection of embryonic stem cells. The People against the idea of Embryonic...
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...Stem cell research is one that is widely debated amongst various religions, cultures, and political groups. The question as to when life actually begins is the epicenter of this worldwide quarrel, and may not be settled for some time. Although this may be true, one fact that cannot be denied is that stem cell research has led to many life saving discoveries in various sectors of scientific research. In regards to the ethical dilemma of stem cells, recent developments in induced pluripotent stem cells (iPSCs) have made it possible to explore the applications of stem cells while avoiding the ethical problems associated with embryonic stem cell research (Seki & Fekuda, 2015). One intriguing area in stem cell research is the potential applications for them in the treatment of cardiac diseases. Studies have explored the potential uses for stem cells for the treatment of heart disease (Yamakawa & Ieda, 2015). Additionally, stem cells have been explored for the treatment of heart failure and myocardial infarction (Rasmussen, et al., 2013). Stem cells and how they may be used for the treatment of various cardiac diseases is an exciting topic and has the potential to change future approaches to the treatment. This paper will examine the applications and significance of stem cells in relation to these common cardiac pathologies. Heart disease is one of the leading causes of death in developed countries and currently there are few effective treatment options available (Yamakawa & Ieda...
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...Stem cell A stem cell is essentially a “blank” cell, capable of becoming another more differentiated cell type in the body, such as a skin cell, a muscle cell, or a nerve cell. Microscopic in size, stem cells are big news in medical and science circles because they can be used to replace or even heal damaged tissues and cells in the body. They can serve as a built-in repair system for the human body, replenishing other cells as long as a person is still alive. Adult stem cells are a “natural” solution. They naturally exist in our bodies, and they provide a natural repair mechanism for many tissues of our bodies. They belong in the microenvironment of an adult body, while embryonic stem cells belong in the microenvironment of the early embryo, not in an adult body, where they tend to cause tumors and immune system reactions. Most importantly, adult stem cells have already been successfully used in human therapies for many years. As of this moment, no therapies in humans have ever been successfully carried out using embryonic stem cells. New therapies using adult type stem cells, on the other hand, are being developed all the time. Significance of the Study Stem cell therapy is a potential treatment for spinal cord injury and different stem cell types has been grafted into animal models and humans suffering from spinal trauma. Due to inconsistent results, it is still an important and clinically relevant question which stem cell type will prove to be therapeutically effective...
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...FALFA11 Sec E The history of Stem Cell Research Legislation in the United States Adult stem cell research on humans began in the 1960's, first achieving success in the treatment of a patient with severe combined immunodeficiency disorder in 1968. Since the early 1970's, adult stem cells have been successfully used for treatment of immunodeficiency and leukemia. Many are in support of the scope, nature, necessity and urgency of stem cell research. If the possibility is there to preserve life and cure diseases such as Cancer, Leukemia, Heart Disease AIDS/HIV, the United States Federal Government should issue more funds towards stem cell research. Those very same people that are against stem cell research may someday find themselves in dire need stem cells to save their lives. A German AIDS patient was able to stop drugs he had been taking for 10 years after getting a transplant of stem cells from a donor with a rare gene variant known to resist the deadly disease. The transplant also cured his leukemia, researchers reported. Embryonic stem cell research does not appear to be ethical and it seems as if a life is being taken in the process. One can’t help but pose the question, “when do the actual stages of life begin”? A Blastocyst is a thin-walled hollow structure in early embryonic development that contains a cluster of cells called the inner cell mass from which the embryo arises. The outer layer of cells gives rise to the placenta and other supporting tissues needed for...
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...Stem Cell Research Stem cells are generic cells that can make exact duplicates of themselves indefinitely and can be used to form specialized cells of each tissue type. They are the foundation for every cell in the body. Stem cells are unique because they can self-sustain and replicate themselves. Scientists have found that stem cells can be programmed to perform many special functions in a body. There are two main types of stem cells that scientists have found to be the most promising in the reproduction of tissues. They are adult stem cells and embryonic stem cells. Embryonic stem cells can be found in the earliest stages of fetuses. Embryonic stem cells are unique because they can be programmed to be any kind of cell in the body. Embryonic research has been experimented much more on mice. There have been no proven tests on human embryonic cells. Adult stem cells are not as much of a heated debate as embryonic stem cells are. “The use of ESC’s (embryonic stem cells) is unacceptable to some people because they can only be harvested from embryos that are destroyed in the process” (Aldhous, Reich). Embryonic stem cells have to be taken from an unborn fetus, while adult stem cells can be acquired from a fully developed being. From the highest political viewpoint embryonic stem cell research is not looked upon with fondness. The Bush administration shut down all government funding of embryonic stem cell research. Adult stem cells, also referred to as multi-potent cells...
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...Stem Cell Research Paper Stem Cell Research Paper Human Biology The human body is capable of many miraculous feats. Every hour, every minute, every second, millions of cells are working to maintain homeostasis within the body. This paper is going to focus on one type of cell in particular, the stem cell. The properties of this little cell are amazing. These unique cells self-regenerate through cell division, and in addition to being unspecialized, have the ability to develop into many different specialized cells of the body. Numerous studies have shown the potential of stem cells to cure cancers, as well as slow or reverse the damages of some neurological disorders, yet stem cell researchers have met with both public and legal resistance during their attempts to show the incredible usefulness of these cells. Therefore, the question is, with stem cell research showing the potential to reverse the damage from or slow the progression of neurological disorders, and possible cures for cancer and other diseases and disorders are the possible benefits too much to ignore? The ability to self-regenerate is one the things that makes the stem cell such an appealing area to study. Most cells and organs in the body do not have the ability to self-regenerate, nor self-repair but stem cells can do both. Stem cells themselves are unspecialized, in that they have so special function (Stem Cell Basics, 2009). Part of the beauty of the stem cell is that through cellular...
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...B) Stem cells. A relative of a friend of yours had a spinal cord injury after a bad car accident. The medical team has decided that this patient is a good candidate for a clinical trial using stem cell therapy. Your friend has not had a biology course since high school, so you are going to write for him or her a two-page discussion of stem cell information. In your discussion, include a description of the biology of stem cells, and explain how these cells are unique in their ability to treat diseases and injury. The following website from NIH regarding stem cell research will be very helpful: http://stemcells.nih.gov/index.asp. Before we determine how stem cells can treat various diseases including spinal cord injuries, let us first understand the root of a spinal cord injury. The spinal cord is an extension of the central nervous system that establishes a structural connection between the brain and the other structures of the body (e.g., arms and legs, bowel, bladder) through nerve fibers. A clear fluid called Cerebral Spinal Fluid (CSF) that acts as a cushion to protect the delicate nerve tissues against damage from banging against the inside of the vertebrae surrounds the spinal cord. The vertebrae is made up of thirty-three bones, each with a circular opening similar to the hole in a donut. (“Spinal Cord Injury: Hope Through Research" NINDS. Publication date August 2003) The central nervous system is organized in a way that allows certain parts of the spinal cord...
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...degenerative diseases, thereby defective genes could be replaced and help improve the lives of millions. However, cloning in the human sense has had a difficult start. DNA cloning has permitted the development of modern biology, in particular within the last forty years. In this time frame the world has passed from theories to actually cloning genes. Subsequently, The University of Utah Health Sciences did a study on the history of cloning: Mitalipov and colleagues were the first to use somatic cell nuclear transfer to create a human embryo. …In this experiment, researchers took a skin cell from a patient and fused it with a donated egg cell. Key to the success of the experiment was the modification to the culture liquid in which the procedure was done and to the series of electrical pulses used to stimulate the egg to begin its division. Following the cloning controversy of 2004–2005, in which South Korean scientists falsely claimed to have used somatic cell nuclear transfer to create embryonic stem cell lines, the scientific community demanded much stronger evidence that the procedure had actually been successful. (Learn. Genetics) Subsequently, many states in the US began to prohibit the use of therapeutic and reproductive cloning. Regardless, cloning should be decriminalized, with the stipulation that serious regulations be put into place. People, often too caught in the moral implications of cloning never take the time to learn the scientific process. Moral implications are thoughts...
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...Stem Cells as a Treatment Overview: Stem cell research is a highly promising field of study. Its most important applications include medicine and therapy. These will be the focus of this paper. To begin: an overview of stem cells, alternatives to embryonic stem cells, and recent advances. Stem cells are amazing for their capacity for self-renewal and, most of all, the ability to become any of millions of cell types in the human body. There are various types of stem cells, each with different potential. This includes embryonic stem cells. These totipotent cell lines come from the inside of the cell mass of a human embryo. These embryos are taken specifically from fertilized eggs not used by in-vitro fertilization (1). At this point, they are just a blastocyst, meaning an embryo composed of approximately one hundred cells. The cells on the inside of the blastocyst are undifferentiated but eventually will multiply and differentiate extensively to make all of the different required cells. Adult stem cells cells also have this same ability. They are found throughout the body and are able to dived to replenish dying cells and regenerate damaged tissues (1). Adult stem cells are able to renew themselves and create a variety of cells, but are usually multipotent, meaning that they only are able to specialize into a small selection of cells. ‘Totipotent’ stem cells can be transformed into any type of cell in the human body, however, there is a great amount of controversy...
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...Jonathan, Baylois Francois, Grass Kathleen, (2006) “Stem cell trials: Lessons from gene transfer research”, 23-26. When I first heard of stem cell research I wondered how the government could refuse Stem cell research, something that holds the cure for diseases like Alzheimer’s , Cancer or even HIV/AIDS. I didn’t know the background story and how stem cell research borders on the morality of what is ethical and what isn’t. Is it acceptable to save one life but kill another? The critics and the religious minded who believe life begins at conception see this as murder, while proponents praise it as innovative and groundbreaking, in helping save millions of lives. This Cutting-edge new experiment challenges and goes against numerous religions that oppose killing human life, which makes it so controversial. The issue of stem cell research largely involves the destruction of five to seven year old embryos, and raises the morality of this experiment. It questions our principals and makes us wonder are we really sacrificing a life or saving one? You have to choose between two wrong things. While there is immense excitement among scientists and people of the possibility of the millions of human lives stem cells can save there is also a great safety concern as well. Stem cell research has always been a very relevant topic. Over the last decade politicians, Scientists and theorists have debated on the medical advancement of stem cell research, its regenerative medicine and the remarkable...
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