Friday, May 22, 2020

Research Ethics Animal And Clinical Research - 1188 Words

Research Ethics: Animal and Clinical Research When it comes to clinical research, many people think of clinical trials, but that’s only merely a small portion of a process towards a medical development involving a process call bench to the bedside. Clinical research outline scientific investigation involving animal or human subjects helping translate basic research into new treatments that would be valuable to patients. Clinical trials can contain a variety of research under the departments of physiology and pathophysiology, health services, and mental health. Furthermore, the process of developing new treatments from the bench to the bedside come in three stages: basic research, transitional research, and clinical research. First†¦show more content†¦Phase III Trials usually randomize compared trials, test efficacy compared to standard of care, once again test for further safety, and conclude to an effective dosage. Animal studies would be necessary based on the ani mals and the trials scientist are trying to conduct. Every animal is different, especially when compared to humans, but there are some in different animals that can help test based on the compound for the trials. Over time there has been numerous ethical violations in clinical research; some more significant than others. In 1906, when the Pure Food and Drug Act was passed, there were no regulations regarding the ethical use of human participants in research. There were no consumer regulations such as the Food and Drug Administration, Common Rule and Institutional Review Boards. One of the most significant events in research history involved human participants was the Nuremberg Code on December 9, 1946. American military opened criminal proceedings against several leading German physicians for their willing participation in crimes against humanity. German Physicians were charged for conducting medical experiments on thousands of concentration camp prisoners without their consent; in most of which the participants as a result either died or were permanently damaged physically. In conclusion of the trial, in 1948 the Nuremberg Code was established, making it known that participants should give consent.Show MoreRelatedA Research Study On Nutrition And Treatment Of Blood Glucose1621 Words   |  7 Pagesgranted the amount of research, time, effort, and money that went into the development of medications or medical treatment. When someone reaches for the aspirin bottle to relieve a pounding headache or that lifesaving injection of insulin used daily to treat and manage levels of blood glucose are both the end results of long and costly research. Without research the awareness of vitamin deficiencies, treatments for cancer, organ transplantation, and vaccines for humans and animals would cease to existRead MoreDrug Development Essay1537 Words   |  7 Pagesdevelopment This entire section on drug development highlights concerns which are very particular to the industry. They therefore lead to the implementation of CSR activities which are also very industry specific, although aspects such as animal testing and ethics in research can be shared by other industries such as the cosmetics industry, or the medical device sector for instance. Need for RD and innovation Today, the need for RD and innovation is great, maybe greater than ever. In the developed worldRead MoreAll Animals Are Equal Essay1744 Words   |  7 Pagesoccur each day on the issues of animal cruelty and human rights, but when the issues are put together which will reign over the other? The author Peter Singer of â€Å"All Animals are Equal† and â€Å"Tools for Research† presents his argument for determining when animal experiments are justified. The author starts his paper with a counter argument, questioning if one would be willing to let thousands of people die if those people could be saved by experimentation on a single animal. The answer is a unanimous no;Read MoreAnimal Testing And Its Effects On Society1393 Words   |  6 Pagesdistinguished for being time consuming, costly and complex. However, this timely manner is beneficial for society as it meant to provide an efficient and safe medication. Concerns regarding when animal st udies are necessary compared to clinical trials has been a debatable topic among society. For over a decade, animal research has served as a fundamental component in many medical findings. Mousses are commonly used in laboratories, as we as humans share nearly 95% of our genes, making them a useful and efficientRead MoreWhy Should Animals Be Used For Medical Research?1520 Words   |  7 Pages Why should animals be used for medical research? Is it because some animals are similar to humans probably. Even though animals have rights they should still be used for experiments because if scientist experiment on humans and something go wrong they could kill that human being. That is why animals should be used for medical research because they have different blood type and cells from us. Something that can easily kill us might not kill an animal, so with that they can find a way to cure theRead MoreAnimal Testing And Its Effects On Human Health1433 Words   |  6 Pagesevidence suppor ts that animal testing comes at a higher cost to animals than was initially acknowledged. Accounts of anxiety disorders, changes in behavior, hormone levels, and the amount of pain animals endure now drive the conversation regarding reforming animal testing practices. It is also noted that the predictive value of animal models do not translate into clinical success. The majority of animal research does not lead to improving human health. Most argue the use of animals overall is a needlessRead MoreProfessional Practice Issues Of Health Care Essay1072 Words   |  5 PagesProfessional Practice Issues in Health Care - Ethics Introduction Medical ethics play a huge role in the health care industry. A crucial part of a health care professional s role is to apply appropriate ethical guidelines into clinical settings. Due to its importance there is unlimited amount of references available in different forms regarding to this specific topic, however, the quality, reliability and relevance of each reference can remain questioned and requires further consideration. InRead MoreEthics of the Nuremberg Code Essay1065 Words   |  5 Pageswithfifteen of twenty-three German physicians and research scientist-physicians found guilty of criminal human experimentation projects. The trial court attempted to establish a set of principles of human experimentation that could serve as a code of research ethics. The result was the Nuremberg Code, which attempted to provide a natural law-based set of universal ethical principles. Looking beyond the Nuremberg Code and applying it to modern medical research ethics, there are many challenges that it posesRead MoreAnimal Experimentation : The End Of Animal Testing1118 Words   |  5 PagesThe experimentation of animals has been used for a multitude of years for research to advance a scientific understanding of a living organism. To this day animals are being tested on for the use of human products. In 3D-printing human skin: The end of animal testing? by Jessica Mendoza, Speculative Philosophy, the Troubled Middle, and the Ethics of Animal Experimentation by Strachan Donnelley, â€Å"Animals and Medical Science: A Vision of a New Era† by David O. Wiebers, Cruelty-free cosmetics benefitRead MoreEthical And Scientific Considerations Regarding Animal Testing And Research759 Words   |  4 PagesConsiderations Regarding Animal Testing and Research. The Principles of Humane Experimental Technique, which emphasized reduction, refinement, and replacement of animal use, principles, many scientists referred to the three R’s. These principles encouraged research ers to work to cut down the figure of animals utilized in experiments to the minimum considered necessary, refine or limit the pain and distress to which animals are exposed, and replace the use of animals with non-animal alternatives when possible

Thursday, May 7, 2020

Essay on Theories of Personality - 1000 Words

Theories of Personality Psychoanalytic perspective is based on Sigmund Frued perspectives about early experiences it focuses on the importance of the unconscious mind which contains thoughts, wishes, feelings and memories/past experiences in which we are unaware of. The id operates on the pleasure principle by satisfying basic urges, needs, and desires. Ego operates on the reality principle, satisfies the id’s desires in ways that it will cause pleasure instead of pain. Superego strives for perfection, positive feelings and negative feelings of guilt. These three systems were interactions of Frued’s view of personality structure. Freud perspective also focused on psychosexual stages which is the childhood stages of development.†¦show more content†¦The humanistic perspective can also lead to an extroverted personality by the individual raising their self-concept by stopping their tendencies to look for others approval. Once they accept themselves, their esteem needs will be me t and obtain gratification about themselves. Once their self-esteem rises, the individual will feel more comfortable socializing and be more energized The Trait perspective suggests that individual personalities are composed broad dispositions. The trait approach to personality is focused on differences between individuals. A trait is defined as a relatively stable predisposition to behave in a specific way. The â€Å"Big Five† is factors of personality that represents five core traits that interact to form human personality. These traits were Conscientiousness, Agreeableness, Neuroticism, Openness, and Extraversion. Psychologist, Gordon Allport believed that every individual was unique and categorized their traits in three levels: Cardinal Traits (traits that dominate an individual’s whole life), Central Traits (general characteristics that form the basic foundations of personality), and Secondary Traits (traits that are sometimes related to attitudes and often appear only in certain situations). Also British psychologist Hans Eysenck developed a model of personality based upon just three universal trails. Introversi on/Extraversion: Introversion involves directing attention on inner experiences, while extraversion relatesShow MoreRelatedAssessment of Gordon Gekkos Personality Using a Mbti Framework and Personality Type Theory2061 Words   |  9 Pagesaim of this essay is to assess Gordon Gekko character ‘s personality from an Oliver Stone’s Movie â€Å"The Wall street, Money Never Sleeps† using the Myers Briggs Type Indicator (MBTI) framework and Personality Type Theory. THE MBTI The MBTI is an instrument designed to evaluate people and provide descriptive profiles of their personality types. It classifies people into sixteen broad and distinctive personality types based on Carl Jung’s theory of perception and judgement. The MBTI model was developedRead MorePersonality Theory And Personality Theories1441 Words   |  6 PagesIntroduction Personality can be defined in many ways due to the individual and unique aspects of personality, and there is yet to be a definitive answer for what personality is and how it comes into being. Generally personality can be defined as the relatively constant, individual and unique characteristics and traits which present themselves to others in different circumstances. Due to the many unknown factors of personality psychologists have suggested many ways in which personality is created,Read MorePersonality Theory : Personality Theories2989 Words   |  12 Pages Personality Theories Personality Theories: Of the many varieties of personality theory on offer, do you think any offer distinct advantages over the others, and if so, why? The personality of the man has been under study since the existence of man himself. It has been hard to understand the human personality due to the fact that one man is different from another. There are different aspects of life that have made the study of the human personality to be a challenge. Such factors include cultureRead MoreTheories Of Personality And Personality Theory4645 Words   |  19 Pagesinformative paper that explores theories of personality. The investigation that is included explains different views from past and present psychologists, from two different theories used in class during the semester. It is prevalent that a person development can suffer from behavioral and psychodynamic problems due to inconsistencies in their life growing up. This paper will discuss an eclectic view of ones personality in conjunct with a formulation of my own personality theory of development. Read MoreTheories Of Personality And Personality1039 Words   |  5 PagesTheories of Personality At one point in life, at a young age or as a resident in an elderly home, the question of who am I will arise. It is a convoluted mesh of thoughts and feelings that a person will go through before coming up with an answer. Some people may even experience cognitive dissonance in trying to explain different stages of life, while others will be comfortable in responding instantaneously with minimal cognition. In going through this process and drawing up the ‘who am I’ andRead MorePersonality Theory And Personality Theories3650 Words   |  15 PagesPersonality is the unique, relatively enduring internal and external aspects of a person’s character that influences behavior. Personality is something we deal with on a daily basis. We question people s behavior based on their motivations; like what childhood experiences did they go through to make them behave in a certain way. Many personality theorists present their own definitions of the word, personality, based on their own theoretical positions. These theorists try to explain people’s actionsRead MorePersonality Theory And Personality Theories1845 Words   |  8 PagesIt is important for psychologists to understand the factors of personality to understand cognitive, emotional and behavioural characteristics required when treating clients. Personality is described as a range of characteristic that controls the way a person thinks, feels and acts that deliver coherence and direction in one’s life. A group of theorists once said, â€Å"each of us is in a certain respect like all other people, like some other people and like no other person who has lived in the past orRead MoreTheories On Personality And Personality2396 Words   |  10 PagesMany psychologist have different theories on personality and how personalities develops from childhood to adulthood. Alfred Adler, Alderian Psychology focuses on people’s effort to compensate for their self-perceived inferiority to others. Erik Erikson believed that personality develops in a series of stages. They all seem to play a part in the shaping of the social behavior of one’s personality, failure or success. Freud theory of personality reasons that the structures and conflicts in the humanRead MorePersonality And Theory Of Personality Essay2250 Words   |  9 PagesPersonality Examined Personality is deeply complexing subject that cannot be easily summed up. There is no concrete right answer, or only one way to evaluate any given subject, as every aspect of personality has more than one view point or angle. Famous psychologists such as Freud, Adler, Jung, Erickson, Eysenck, and Skinner all shaped and conducted the research that would come together and be taught to generations as the foundations of personality and the theory of personality. To better understandRead MoreThe Theories Of Personality Theories1124 Words   |  5 Pagesimportant theories regarding personality. Some of these theories are still relevant to our world today. These theories have helped form humans and they have also changed the way we think and the way we do things. There are many different forms of personality theories that have shaped the world for us: Biological, Behavioral, Psychodynamic, Humanist, Trait, etc. Biological theories are based on genetics and they believe that genetics are re sponsible for personality. Behavioral theories suggest that

Wednesday, May 6, 2020

Causes and Effects of Cancer Free Essays

In the human body, cells are constantly going through the cell cycle. An Important step of the cell cycle Is called mitosis, In which the cell (referred to as the parent cell) undergoes a series of steps that lead to the formation of two daughter cells. This process only occurs In somatic cells, which are any nongamete cells. We will write a custom essay sample on Causes and Effects of Cancer or any similar topic only for you Order Now Gametes are haploid (containing only half of a full chromosome set, 23 chromosomes vs. a diploid’s 46) cells in the form of sperm (males) or ovum (females). Some areas of the body undergo very little mitotic division at all, such as muscles and nervous tissue. Other areas undergo mitotic division in response to a growth factor, which is a signal to cells of a specific area to begin mitosis. This growth factor is released into the extracellular fluid in certain portions of the body in response to four basic stimuli: growth, repair, asexual reproduction, and regeneration. In humans, growth and repair are the prevalent stimuli. Growth dictates the maturation of an organism during a specific period of time†known as puberty in humans. Repair, on the other and, occurs when an organism sustains an injury such as a laceration, in which mitotic division occurs to create a blood clot to seal the wound, and epithelial cells undergo the process as well to recreate the skin cells that were destroyed. To control the rate ot mitotic cell division, the body uses growth signals and antigrowth signals. cancerous cells are those that Ignore antgrowth signals, and can continue to replicate without growth factors. After a certain amount of rnltotlc dlvlslons, the telomeres In cells shorten until there Is none, and programmed apoptosis†cell death †occurs. Cancer cells elongate their telomeres, and so can also replicate almost indefinitely. When these cells start to build up, they form a mass called a tumor. Tumors can either be benign or malignant. Benign tumors on the skin have hair growth and clean edges, whereas malignant tumors do not and are cancerous. The condition can worsen if any cells from a malignant tumor detach and travel to other parts of the body through the circulatory or lymphatic systems. The tumor will then begin growing in the location where the cell ends up. nd can be fatal In certain organs like the liver or the brain, What makes these cells especially dangerous is ngiogenesis, in which the blood vessels near a tumor grow to increase the blood supply to that area, providing necessary nutrients and oxygen to the cancerous cells and depriving nearby healthy cells. Cancerous cells also divide more frequently because the length of time a cell spends in Interphase†the â€Å"inactive† phase†is shorte ned. This becomes even more dangerous when considering that less time is spent on replicating the DNA so the daughter cells are more likely to have chromosomal disorders. 3. The article presents new evidence and viewpoints regarding the formauon of malignant tumors and cells. At first, In the 90s, It was elieved that cancer was â€Å"the result of cumulative mutations that alter specific locations In a cell’s DNA and thus change the particular proteins encoded by cancer- related genes at those spots. † Of course It Is already clear that certain substances, such as tobacco, asbestos, and UV radiation, are common cancer-causers (carcinogens). wnat Is Delng aeoatea, nowever, Is wnat erect tnese suostances nave on cells that cause malignancy in the first place†or†What makes these substances carcinogens? In regards to the DNA mutation theory, evidence stemmed from observations of tumor suppressors and oncogenes. These two genes inhibit a cells’ ability to divide, and stimulate growth respectively. DNA mutations would either disable tumor suppressors, or â€Å"permanently lock oncogenes into an active state. † While still supported by a few in the field, disagree. â€Å"No one questions that cancer is ultimately a disease of the DNA. † There are, however, a substantial amount of other factors that have been observed to vary between normal and cancerous genes. Opponents of the dogma feel that â€Å"Cancer is a consequence of a chaotic process, a combination of Murphys Law and Darwin’s law; anything that can go wrong will, and n a competitive environment, the best adapted survive and prosper. † Age is a significant risk factor for cancer, as it is for most diseases. The older you are, the more likely you are to be diagnosed with cancer. On hypothesis that differs from the cumulative-mutations theory says that there are five or six regulation systems that need to be affected in order for a cell to be malignant. These six â€Å"special abilities† are: growth in the absence of growth signals, continued growth despite anti-growth signals, evasions apoptosis, ability to coopt blood vessels to branch off towards the mass, near-indefinite replications, and metastasis. Of the six, it is metastasis that provides the most difficult aspect to counteract, as different drugs and treatment methods have to be utilized based on the region in which cancer is preset. For instance, chemotherapy is not very effective for bone cancer. Very few cells in a tumor have the ability to metastasize, however, once detected it is usually too late. â€Å"The prominent paradigm for 25 years has been that tumors grow in spurts of mutation and expansion. † Mutations affect genetic material in such a way that usual regulatory proteins are unable to be synthesized properly, or at all. Once mutated, cells then expand and replicate much faster than normal cells (explained in the background section). It is, however, much easier to permanently activate an oncogene than it is to suppress the tumor alleles (one mutation rather than two). It is, however, now believed that cancer is not Just caused from mutations to a few specific genes. If â€Å"Just a small fraction of the cells in a tumor are responsible for its growth and metastasis,† the â€Å"cure† for cancer is much more easily attainable. Seeing as mitosis produces two genetically identical daughter cells, DNA mutations present in the arent cells should also be observable in both daughter cells. Most tumors are not actually masses of identical clones; instead, there is an â€Å"amazing genetic diversity among their cells. While there are some commonly-mutated genes from cancer cell to cancer cell (like p53), â€Å"most other cancer genes are changed in only a small fraction of cancer types†¦ † Aneuploidy is a term describing abnormalities in chromosomes. â€Å"If you look at most solid tumors in adults, it looks like someone set Offa bomb in the nucleus†¦ there are big pieces of chromosomes hooked together and duplications or os ses of whole chromosomes. † The issue though, is that most cancer cells’s genomes are unstable as wells as aneuploid, and so the new introduced problem is whether mutations or aneuploidy occurs first in a cancerous cell. One of the three plausible answers is the modified dogma. This states that some external or internal factor disables the genes needed for synthesizing and repairing DNA, resulting in an ty to correct mutatlons tnat occur. Anotner optlon Is â€Å"early InstaDlllty,† statlng that there are specific master genes required for a cell to divide, and these are silenced. Thus, when chromosomes replicate and mistakes occur, the daughter cells fail to get the correct number of type of chromosomes. As replication continues, so do the â€Å"results† worsen. The last theory is the â€Å"all-aneuploidy’ theory, in which a cellular division error produced aneuploid daughter cells that have varying amounts of different genes. The specific genes that code for enzymes which correct DNA mutations are unable to be synthesized, and thus the DNA begins to fail and kill the aneuploid cells with it. 4. While on the longer side of the spectrum, Gibbs’ article is well-written, detailed, and incredibly informative. Above all, the article is also relevant†both to our current unit in AP Biology, and in the medical field. The article is about ten years old at this point, however, much, if not all, of the information described and provided is still highly accurate and in question today. While there have been numerous developments in the biotechnology fields specializing in treatment and detection of cancer, not many advancements have taken place in regards to identifying the reasons why certain substances are carcinogenic. Mitosis and meiosis are subjects that go hand in hand with cancer, as it is literally an ncontrolled amount of mitotic division, making the article easy to relate too. New terms such as oncogenes and tumor suppressors are well explained, and numerous links to previous material (such as protein synthesis and chromosomal disorders) can be made by any knowledgeable AP Biology student. Comprehension was not an issue whatsoever, and the article was wonderfully written as well as fascinating. That said, I would highly recommend the article to anyone†AP Biology student or otherwise, as it is informative in layman’s terms, as well as important in modern society. How to cite Causes and Effects of Cancer, Papers