Charlie Zoller
3/5/2013
Assignment 1
Cultural Biology
The existence of the stem cell was proven in 1961. Since the discovery stem cell research, useful applications remain a large focus in the biomedical world. Doctors have been performing bone marrow stem cell transplants for decades. But when scientists learned how to remove stem cells from human embryos in 1998, both excitement and controversy ensued. (NIH) The excitement is due to the huge potential these cells have for curing human disease, such as diabetes, and heart disease. Unlike gene therapy, or other cells, the stem cell has the capability of self- renewal and reprogramming, known as differentiating (Collins p204). That is to say they can be induced to become tissues or organ specific cells and repair damaged tissues. Most stem cell research is done using adult and embryonic stem cells (NIH). Adult stem cells have a limited capacity to differentiate and are referred to as “multipotent” However embryonic stem cells can regenerate indefinitely, and into all tissues of the human body. These cells are referred to as “pluripotent.”(Collins p205) It is this characteristic that makes the embryonic stem cell a more desirable avenue of research with the largest possibility for therapeutic solutions. These pluripotent stem cells are isolated from the human embryo thereby destroying the embryo and its potential for life. The controversy centers on the moral implications of destroying these human embryos. Historically, the embryos used in these studies were created for reproductive purposes through in vitro fertilization procedures. (Often there are excess fertilized eggs that result from the in vitro process, which are frozen and donated for research with the informed consent of the donor.) It is likely that otherwise these embryo would be discarded (Collins, p206) some feel this is an abortion. However is it more ethical to discard them this way or through research? Stem cell research has given rise to many questions like this, both in the courts and Congress: Does life begin at fertilization? Does a human embryo have rights? Is the destruction of the embryo justified if it provides a cure or eliminates suffering? Is there the possibility that embryos might be created or donated strictly for medicinal purposes? Morality is grounded in ones personal belief, so there can’t be a definitive right or wrong answer to these questions. Thus, political leaders have been debating for years over how to regulate and fund research involving human embryos so as to balance morality and scientific advances. The 1996 Dickey-Wicker amendment, forbids the use of federal funds in research that destroys embryos. Although private funding has been available, the large federal dollars have been restricted because of the ethical issues, and has somewhat hampered the forward progress of research (NIH). We have seen research change course with administrations. For instance, George W. Bush decided that only research on embryos derived before August 9, 2001 could be used to create stem cell lines. Subsequently, President Barack Obama issued an executive order reversing this and encouraging the National Institutes of Health to pay for embryonic stem-cell research, so long as federal money wasn’t used to directly make the stem cells. (NIH) New breakthroughs are providing hope and may soon make this debate less relevant. Scientists have learned how to stimulate a patient's own adult cells to behave like embryonic stem cells. These so-called induced pluripotent stem cells are reducing the need for human embryos in research (NIF). Both human embryonic stem cells and induced pluripotent stem cells are pluripotent: they can become any type of cell in the body. But ethical questions regarding stem cells research may not entirely go away. An additional ethical consideration is that
that lies within. By collecting and cloning a skin sample they have the ability to study the neurons; neurons are the part of the cell that electrically transmit signals to the brain and central nervous system. In the past it was very difficult to study the living human body. Scientist generally had to study dead bodies, and even then it was hard because the cells had already died off. Scientist believe that if they are able to advance there knowledge farther that someday it might not be impossible…
Written Assignment 2: Biology and Technology in the Real World Addresses course outcomes 2 and 3: • use knowledge of biological principles to ask relevant questions about the natural world • make observations and discriminate between scientific and pseudoscientific explanations 1. Select one of the following topics below. 2. Find articles related to the topic. 3. Write two pages, double spaced, excluding references. You must read the articles that you find and summarize the information…
Kip Chaichana Biology 1610 Biology Paper Stem cells are simply the creation or repair of another life form from an earlier form. Stem cells have the chance to change all that we know in the medical field as well as the potential to heal old wounds and heal damaged organs. Stem cells have the ability to develop into bone, muscle, cartilage, or other types of cells. The ability of these cells to develop into almost any cell type could allow for the repair of any damaged or deteriorating tissue…
Cell Biology 2B Intro to Cells Continued, Ultrastructure of Cells.notebook Introduction to Cells Continued and Ultrastructure of Cells January 30, 2015 Gene Expression and Cell Differentiation All Cells have the same set of genes- the genes that are used determine differentiation Example - rod cells (pigment to absorb light) - lens (no pigment) Genes for pigmentation only used in rod cells Extra "instruction manual" for all cells 25,000 genes in human genome, but most cells less than half will…
Microbiology Article Summary Heart Stem Cell Research The general area of science this article is covering is biology. Biology is the science of life and of living organisms, including their structure, function, growth, origin, evolution, and distribution. It includes botany and zoology and all their subdivisions. Stem cells are important because they have astonishing potential to develop into many different cell types in the body during early life and growth. In many tissues they serve…
In the early 1980s, scientists at Johns Hopkins University and researchers at the University of Wisconsin isolated and grew stem cells from human embryos. This discovery ushered in a new era of political, religious and ethical controversy (Clemmitt). In discussions of the use of federal funding on embryonic stem cell research, opponents often claim that the government should not conduct research on something that they consider to be ethically wrong. President Obama himself states, “Many thoughtful…
The adaptation of cells to their functions,their size, and shape 1.THE GENERAL FEATURES OF HUMAN CELLS The cell is the structural functional unit of all known living organisms it is the smallest unit of an organism that is classified as a living and is often called the building block of life .Like ourselves, the individual cell that forms our bodies can grow reproduce, process, information, respond to stimuli and carry out an amazing array of chemical reactions ,as the twenty first century…
has been much controversy on Stem Cell research over the years. Pro-life Activist and scientist have been at each other’s throats over this topic for too long. The controversy is that we should not be destroying the potential of human life to save others; researchers believe that there is another way, However there is not enough funding to support such a project and using stem cell research has showed successful turn outs. When I was first introduced to the term Stem cells i had a certain curiosity…
Stem cell therapy regenerates heart muscle damaged from heart attacks in primates University of Washington April 30, 2014 Heart cells created from human embryonic stem cells successfully restored damaged heart muscles in monkeys. The results of the experiment appear in the April 30 advanced online edition of the journal Nature in a paper titled, "Human embryonic-stem cell derived cardiomyocytes regenerate non-human primate hearts." The findings suggest that the approach should be feasible…
scientist working with Adult Stem Cells in the CERN Laboratory in Switzerland. I am here for you to listen to this one request. That is for you to provide funds for Adult Stem Cells ONLY. I believe that Embryonic Stem Cells are an unnecessary loss of life in the scientific research community. I am here to not only take a stand in ethical controversies, but also in what is for the good of science. Adult stem cells are a benefit to science. Stem cells are an undifferentiated cell of a multicellular organism…