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Essay about ethical xenotransplantation
Essay about ethical xenotransplantation
Medical argument xenotransplantation
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Around 8,000 people die every year waiting for an organ transplant because there is a shortage of human organs available. Xenotransplantation, the process of grafting or transplanting cells, tissue, or organs between two different species (non- human to human), could be a solution to increasing the donor list. Xenotransplants have been performed before, but with new technology, like regenerative medicine and stem cells research, emerging during the same time period, much of the attention and the funding support went to the other research because of the more promising future and less ethical problems (Cozzi 288). Some of the general public, scientists, and government agencies believe that with xenotransplants having so many ethical problems …show more content…
surrounding their study and clinical trials and no promising future, that it would not be a beneficial source of getting organs donors. The dilemma is wither or not xenotransplantation should be considered beneficial again and start more studies and clinical trials or should it still be looked at as a useless study. Those who have opposing view on xenotransplantation do so because of the lack of producing long term survivors, the risk of contracting a serious disease(s), animal rights issues, and the fact that you would be under the watchful eye of the FDA. For many years xenotransplants have been performed throughout different countries, one of the more famous transplant stories was done in 1985 at Loma Lind University by Leonard Bailey. Bailey implanted a baboon’s heart into baby Fae, a newborn infant who survived four week after the transplant (Committee 7). Another story includes two patients in the early 1990’s, they both had advanced hepatitis B; Thomas Starzl transplanted both with baboon liver. One of the patients survived 70 days while the other died just 26 short days after getting the transplant, they both died because of an infection due to excessive immunosuppressive (Committee 7). In 1964 a xenotransplant was done by Reemtsma, this is known as one of the longest living transplants trials done. Reemtsma transplanted chimpanzee kidneys into thirteen patients, one of which returned to work for nine months before suddenly dying (Copper 1). Another argument against xenotransplantation is the risk of contracting a disease from the animal donor.
In the book, “Xenotransplantation: Science, Ethics, and Public Policy” is states that some scientists and government officials argue that there are significant threats of disease transmission form the source animals, threats not only to recipients but to health care professional, families, and public at large (Committee 10). Xenotransplants use many different organs from different animals, some of those animals have diseases that their bodies are immune to; when implanted into a new host, that host’s body may not be immune and could contract a disease from the animal. Many of the anticipated diseases are determined by what organ is being transplanted. The committee on xenograft transplantation states that patients who receive a liver have a high incidence of abdominal; patients who receive a kidney are susceptible to genitourinary tract infection; and patients who receive a lung or heart transplant are predisposed to infections of the pulmonary system (Committee …show more content…
40). One of the more controversial objections of xenotransplantation is the animal rights issue.
In Daar’s article, “Ethics of Xenotransplantation: Animal Issues, Consent and Likely Transformation of Transplant Ethics” state that a British reformer Jeremy Bentham who posed two questions when animals are involved in research studies and trials. Bentham asks (1) “The question is not can they reason? Nor can they talk? but can they suffer? And (2) “What insuperable line prevents us from extending moral regard to animals (Daar 975)?” A growing belief is that animals don’t feel pain but they can suffer. Peter Singer, a philosopher believes that much research involving animals does not produce useful results (Committee 73). Experimenters that uses animals do not want to admit animals have rights but studies have proven that animals do suffer. Suffering implies that the animal is self-aware, which means they have some form of intelligence. Daar states, “Singer, Regan, and others have argued that animals do indeed have many rights, even if they are of a lesser magnitude than those of
humans.
Both in and out of philosophical circle, animals have traditionally been seen as significantly different from, and inferior to, humans because they lacked a certain intangible quality – reason, moral agency, or consciousness – that made them moral agents. Recently however, society has patently begun to move beyond this strong anthropocentric notion and has begun to reach for a more adequate set of moral categories for guiding, assessing and constraining our treatment of other animals. As a growing proportion of the populations in western countries adopts the general position of animal liberation, more and more philosophers are beginning to agree that sentient creatures are of a direct moral concern to humans, though the degree of this concern is still subject to much disagreement. The political, cultural and philosophical animal liberation movement demands for a fundamental transformation of humans’ present relations to all sentient animals. They reject the idea that animals are merely human resources, and instead claim that they have value and worth in themselves. Animals are used, among other things, in basic biomedical research whose purpose is to increase knowledge about the basic processes of human anatomy. The fundamental wrong with this type of research is that it allows humans to see animals as here for them, to be surgically manipulated and exploited for money. The use of animals as subjects in biomedical research brings forth two main underlying ethical issues: firstly, the imposition of avoidable suffering on creatures capable of both sensation and consciousness, and secondly the uncertainty pertaining to the notion of animal rights.
The medical procedure of Xenotransplantation, (transplanting animal organs into humans) has been happening for many years, this medical practice was proceeding mixed results and mixed views regarding the procedure. In the year 1984, a baby girl whom was named Baby Fae by medical staff, became known world wide for the medical procedure she endured. Baby Fae had a potentially fatal heart problem, she was suffering from Hypoplastic left heart syndrome which is a fatal disease if not treated by surgery, (Time Magazine, 1984). The only way to save her was to replace her failing heart with a healthy seven month old baboon heart. The medical professionals that were working on Baby Fae were excited to be able to perform this Xenotransplantation on the infant. After the procedure Baby Fae was acting like any normal healthy infant would. But unfortunately, the replacement heart surgery wasn’t a true success story as the medical staff had hoped. Baby Fae died 20 days after her surgery because her tiny body rejected the baboons heart, which then went on to cause other fatal damage such as kidney...
In his article entitled “Animal Liberation,” Peter Singer suggests that while animals do not have all of the exact same rights as humans, they do have an equal right to the consideration of their interests. This idea comes from the fact that animals are capable of suffering, and therefore have sentience which then follows that they have interests. Singer states “the limit to sentience...is the only defensible boundary of concern for interests of others” (807). By this, he means that the ability to feel is the only grounds for which rights should be assigned because all species of animals, including humans, have the ability, and therefore all animals have the right to not feel suffering and to instead feel pleasure.
In the world we’re living in today, many kinds of diseases, infections, and viruses are continuously arising. At the same time, scientists are untiringly researching about how we can prevent or cure them. Unfortunately, millions of people have been affected and sick that some of their organs fail that results to the need of organ replacement. Many people have died because no organs have been available to provide the need of organ replacements. The shortage of organ replacement has been a bioethical issue since then and it seems like no solution has been available. However, due to the studies scientists have been conducting, they found the most possible answer to this issue – Xenotransplantation. It hasn’t become very popular all over the
Animal experimentation has always been a highly debated topic. Many have argued for the use of animal experimentation claiming that animal experimentation is the only possible way to find medical treatments to preserve human life. However, animal rights activists have argued that animal experimentation is futile and that it is unethical to use the life of an animal for experimentation without the animal’s consent. Although both sides of the debated issue present reasonable opinions, the use of animals for experimentation is the most effective form scientists have in order to find medical breakthroughs. In Jane Goodall’s essay “A Question of Ethics,” she argues that animals should not be experimented on because there are more advanced alternatives than using animal lives. In Goodall’s defence, we should not support activities
In America, there are currently 122,198 candidates on the Organ Procurement and Transplantation Network (OPTN) waiting list (“OPTN”). Due to a lack of available organ donors, around 18 waiting list candidates will die every day (“OPTN”). This has prompted the development and investigation of xenotransplantation—the transplantation of animal tissue and organs to potential human candidates. Currently in its early phases of development and study, xenotransplantation is controversial for its high failure rate, with only a few cases successful. This is attributed to the human immune system rejecting those animal donated organs, thereby potentially causing immediate death to the human candidate. On the one hand, pre-clinical trials have broadened the understanding of the human immune system, as well as furthered xenotransplantation research. However, because xenotransplantation has achieved little success, opponents of the procedure argue that it is unethical to continue its practice. It is also important to note that trials often use baboons in place of humans, which presents several variables to be examined before further human trials can begin. Moreover, the potential acquisition of zoonotic infection is a serious risk that cannot be fully determined without the use of human subjects. Thus, not only will xenotransplantation require more extensive study, it will also require hundreds of animal lives, all in an effort to create nothing more than a last resort.
Unanticipated harm should not be brought to donors, patients or anyone else that may be involved in the process of transplants. There should not be any intentional or malicious harm. If a patient has been placed in harm unknowingly or knowingly during transplantation, then this principle has been violated. Childress (2001), states that it is hard to define the nature of harm, for there are several types of harm. For example, if a healthcare provider does a transplant and the pain that is inflicted on that patient in the attempt to prevent death, then that healthcare provider has caused harm to avoid an even greater harm (p.4).
When Goodall asserts that scientists shouldn’t mindlessly test animals if alternative tests are available, she is in effect conceding that sometimes animals will have to suffer for the sake of helping human beings. Yet if it is unacceptable in some cases to cause sentient beings to suffer, why would it not always be unacceptable? When could compassionate people be comfortable with the prospect of causing David Greybeard mental and p...
Currently 70,000 Americans are on the organ waiting list and fewer than 20,000 of these people can hope to have their lives saved by human organ transplantation.1 As a result of this shortage, there has been a tremendous demand for research in alternative methods of organ transplantation. Private companies are racing to develop these technologies with an estimated market of six billion dollars.2 Xenotransplantation, or cross-species organ transplantation, appears to be the most likely solution in the near future, and cloned pigs are the main candidates. Pigs and humans have remarkable similarities in physiology, which along with cloning makes pigs strong possibilities for organ donors. A controversial alternative method involves the use of genetically altered headless human beings as organ donors. Although this method may not be developed for some years, scientists are already discussing the necessary technologies. Whether the solution is the cloning of a pig or a human, organ farms may provide us with a solution to our ever-increasing need for donors.
Ethical issues also play a role in the selection of the solutions. Most patients perceive xenotransplantation as an acceptable alternative to transplantation of human organs in life-threatening situations provided the potential benefits outweigh any likely adverse effects on the animals. Xenotransplantation of organs from chimpanzees and baboons has been avoided, because of ethical concerns as chimpanzees are listed as endangered species and the fear of transmission of deadly viruses. Pigs are plentiful, quick to mature, breed well in captivity, have large litters, and have vital organs roughly comparable in size to those of humans. Further there are physiologic similarities between their antibodies to human antibodies, and also since they are already being used in the consumer market, organs have been mainly harvested from pigs. Humans have had prolonged and close contact with pigs, their use for the purpose of xenotransplantation is believed to be less likely to introduce any new infectious agents. Porcine islet cells of Langerhans have been injected into patients with type 1 diabetes mellitus. Porcine skin has been grafted onto burn patients, and pig neuronal cells have been transplanted into patients with Parkinson’s disease and Huntington’s disease.
Millions of animals are used to test consumer products, but they also become victims of experiments for medical research. In The Ethics of Animal Research (2007) both authors state that there have been many medical advances with the development of medicines and treatments as a result of research conducted on animals (para 1). These medical improvements have helped many people be able to enjoy life, but some people still believe that animal research is mean and avoidable .... ... middle of paper ... ...
Nadiminti, H. (2005) Organ Transplantation: A dream of the past, a reality of the present, an ethical Challenge for the future. Retrieved February 12, 2014 from http://virtualmentor.ama-assn.org/2005/09/fred1-0509.html
“Transplanting animal organs into humans is feasible.” USA Today. November 1999: 54-55. Gehlsen, Gale M., Ganion, Larry R. and Robert Helfst.
The benefits of human genetic engineering outweigh the risks by providing mankind with cures to multiple deadly diseases. Human genetic engineering has the capability to transmit usually fatal diseases. Although transmission is highly unlikely, it is one of the risk factors scientists have taken into great consideration. If animal cells or organs are transplanted into humans, zoonotic diseases may be spread. Bovine Spongiform Encephalopathy, Porcine Endogenous Retroviruses, and Nipah Encephalitis are all potentially fatal zoonotic diseases that could be transmitted (Glenn).
Many patients in hospitals are waiting for transplants and many of them are dying because they are not receiving the needed organs. To solve this problem, scientists have been using embryonic stem cells to produce organs or tissues to repair or replace damaged ones (Human Cloning). Skin for burn victims, brain cells for the brain damaged, hearts, lungs, livers, and kidneys can all be produced. By combining the technology of stem cell research and human cloning, it will be possible to produce the needed tissues and organs for patients in desperate need of a transplant (Human Cloning). The waiting list for transplants will become a lot shorter and a lot less people will have to suffer and die just because they are in great need of a transplant....