A model organism is a non-human species that is extensively studied to understand particular biological phenomena, with the expectation that discoveries made in the model organism will provide insight into the workings of other organisms. Model organisms are widely used to research human disease when human experimentation would be unfeasible or unethical. This strategy is made possible by the common descent of all living organisms, and the conservation of metabolic and developmental pathways and genetic material over the course of evolution.
A toxin is a harmful substance produced within living cells or organisms; synthetic toxicants created by artificial processes are thus excluded. The term was first used by organic chemist Ludwig Brieger (1849–1919), derived from the word toxic.
Toxicology is a scientific discipline, overlapping with biology, chemistry, pharmacology, and medicine, that involves the study of the adverse effects of chemical substances on living organisms and the practice of diagnosing and treating exposures to toxins and toxicants. The relationship between dose and its effects on the exposed organism is of high significance in toxicology. Factors that influence chemical toxicity include the dosage, duration of exposure, route of exposure, species, age, sex, and environment. Toxicologists are experts on poisons and poisoning. There is a movement for evidence-based toxicology as part of the larger movement towards evidence-based practices. Toxicology is currently contributing to the field of Cancer research, since some toxins can be used as drugs for killing tumor cells. One prime example of this is Ribosome Inactivating Proteins, tested in the treatment of Leukemia.
Animal testing, also known as animal experimentation, animal research and in vivo testing, is the use of non-human animals in experiments that seek to control the variables that affect the behavior or biological system under study. This approach can be contrasted with field studies in which animals are observed in their natural environments or habitats. Experimental research with animals is usually conducted in universities, medical schools, pharmaceutical companies, defense establishments and commercial facilities that provide animal-testing services to industry. The focus of animal testing varies on a continuum from pure research, focusing on developing fundamental knowledge of an organism, to applied research, which may focus on answering some question of great practical importance, such as finding a cure for a disease. Examples of applied research include testing disease treatments, breeding, defense research and toxicology, including cosmetics testing. In education, animal testing is sometimes a component of biology or psychology courses. The practice is regulated to varying degrees in different countries.
MEDLINE is a bibliographic database of life sciences and biomedical information. It includes bibliographic information for articles from academic journals covering medicine, nursing, pharmacy, dentistry, veterinary medicine, and health care. MEDLINE also covers much of the literature in biology and biochemistry, as well as fields such as molecular evolution.
Environmental health is the branch of public health concerned with all aspects of the natural and built environment affecting human health. Environmental health is focused on the natural and built environments for the benefit of human health. The major subdisciplines of environmental health are: environmental science; environmental and occupational medicine, toxicology and epidemiology.
The United States National Library of Medicine (NLM), operated by the United States federal government, is the world's largest medical library.
Covance Inc. is a contract research organization (CRO) headquartered in Princeton, New Jersey, providing nonclinical, preclinical, clinical and commercialization services to pharmaceutical and biotechnology industries. The company is owned by Labcorp and employs more than 50,000 people in over 60 countries. According to its website, it is one of the largest companies of its kind in the world, with annual revenues of over $2 billion. It claims to provide the world's largest central laboratory network. It became a publicly traded company in 1997 after being spun off by Corning Incorporated in 1996. In 2018, the Covance parent company, Laboratory Corporation of America Holdings (Labcorp), was rated one of the best places to work for LGBTQ equality by the Human Rights Campaign. Covance has been subject to harassment from animal rights groups for its animal testing procedures.
The Virginia–Maryland College of Veterinary Medicine is a state-supported college of two states, Virginia and Maryland, filling the need for veterinary medicine education in both states. Students from both states are considered "in-state" students for admissions purposes.
The Texas A&M College of Veterinary Medicine & Biomedical Sciences is a college of Texas A&M University in College Station, Texas. The college was founded in 1916 and is one of only 31 colleges of veterinary medicine in the United States and Canada. It is consistently ranked as one of the top 5 vet schools in the country, according to U.S. News. The college offers an undergraduate program in Biomedical Sciences, a professional Doctor of Veterinary Medicine program, and numerous graduate programs relating to veterinary medicine and epidemiology.
The Office of Laboratory Animal Welfare (OLAW) oversees the care and use of research animals in any public or private organization, business, or agency. The Public Health Service consists of the National Institutes of Health (NIH), Centers for Disease Control and Prevention (CDC), the Food and Drug Administration (FDA), the Agency for Healthcare Research and Quality (AHRQ), the Indian Health Service (IHS), and the Substance Abuse and Mental Health Services Administration (SAMHSA). The agencies of the PHS are a part of the U.S. Department of Health and Human Services.
The National Toxicology Program (NTP) is an inter-agency program run by the United States Department of Health and Human Services to coordinate, evaluate, and report on toxicology within public agencies.
The Foundation for Biomedical Research (FBR) is an American non profit organization, 501(c)(3), located in Washington, DC. Established in 1981, the organization is dedicated to informing the news media, teachers, and other groups about the need for lab animals in medical and scientific research. The organization, together with its partner, the National Association for Biomedical Research (NABR), argues that promoting animal research leads to improved health for both humans and animals.
Alternatives to animal testing are the development and implementation of test methods that avoid the use of live animals.
The Pennington Biomedical Research Center is a health science-focused research center in Baton Rouge, Louisiana. It is part of the Louisiana State University System and conducts clinical, basic, and population science research. It is the largest academically-based nutrition research center in the world, with the greatest number of obesity researchers on faculty. The center's over 500 employees occupy several buildings on the 222-acre (0.90 km2) campus. The center was designed by the Baton Rouge architect John Desmond.
The National Association for Biomedical Research (NABR) is an American non profit organization, 501(c)(6), located in Washington, DC. NABR was formed in 1985 when the Association of Biomedical Research merged with the National Society for Medical Research The NABR advocates for the continued use of animals in biomedical research albeit in as humane a manner as possible.
The Interagency Coordinating Committee on the Validation of Alternative Methods (ICCVAM) coordinates U.S. federal government evaluation of new, revised, and alternative test methods. Alternative methods are methods for safety testing of chemicals and chemical products that use fewer or no animals or that minimize or prevent animal pain and distress.
The Hazardous Substances Data Bank (HSDB) is a toxicology database on the U.S. National Library of Medicine's (NLM) Toxicology Data Network (TOXNET). It focuses on the toxicology of potentially hazardous chemicals, and includes information on human exposure, industrial hygiene, emergency handling procedures, environmental fate, regulatory requirements, and related areas. All data are referenced and derived from a core set of books, government documents, technical reports, and selected primary journal literature. All entries are peer-reviewed by a Scientific Review Panel (SRP), members of which represent a spectrum of professions and interests. Current Chairs of the SRP are Dr. Marcel J. Cassavant, MD, Toxicology Group, and Dr. Roland Everett Langford, PhD, Environmental Fate Group.
The New England Anti-Vivisection Society (NEAVS) is a national, registered 501(c)(3) nonprofit organization “dedicated to ending the use of animals in research, testing, and science education” and replacing them with "modern alternatives that are ethically, humanely, and scientifically superior."
The Three Rs (3Rs) in relation to science are guiding principles for more ethical use of animals in testing. They were first described by W. M. S. Russell and R. L. Burch in 1959. The 3Rs are:
- Replacement:methods which avoid or replace the use of animals in research
- Reduction: use of methods that enable researchers to obtain comparable levels of information from fewer animals, or to obtain more information from the same number of animals.
- Refinement: use of methods that alleviate or minimize potential pain, suffering or distress, and enhance animal welfare for the animals used.
