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National Wilms Tumor Study Group
The National Wilms Tumor Study Group (NWTS) is a cancer research cooperative group in the United States formed to study a type of kidney tumor that affects children called Wilms' tumor. In 2001, NWTS merged with several other pediatric oncology cooperative groups to create the Children's Oncology Group (COG). However, the NWTS is still active in name today completing follow-up of the late effects of treatment for patients previously enrolled in its trials. The acronym NWTS is pronounced like the word "nitwits". The NWTS was formed in 1969 by member institutions from Children's Cancer Study Group (CCG), Southwest Oncology Group (SWOG), and CALGB, the latter two which later merged to form the Pediatric Oncology Group (POG). The NWTS was created with the purpose of improving survival of children with Wilms' tumor. NWTS studies were conducted at over 250 pediatric oncology treatment centers in the United States, Canada, and other countries. Approximately 70-80% of patients with ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cancer
Cancer is a group of diseases involving abnormal cell growth with the potential to invade or spread to other parts of the body. These contrast with benign tumors, which do not spread. Possible signs and symptoms include a lump, abnormal bleeding, prolonged cough, unexplained weight loss, and a change in bowel movements. While these symptoms may indicate cancer, they can also have other causes. Over 100 types of cancers affect humans. Tobacco use is the cause of about 22% of cancer deaths. Another 10% are due to obesity, poor diet, lack of physical activity or excessive drinking of alcohol. Other factors include certain infections, exposure to ionizing radiation, and environmental pollutants. In the developing world, 15% of cancers are due to infections such as ''Helicobacter pylori'', hepatitis B, hepatitis C, human papillomavirus infection, Epstein–Barr virus and human immunodeficiency virus (HIV). These factors act, at least partly, by changing the genes of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States
The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territories, nine Minor Outlying Islands, and 326 Indian reservations. The United States is also in free association with three Pacific Island sovereign states: the Federated States of Micronesia, the Marshall Islands, and the Republic of Palau. It is the world's third-largest country by both land and total area. It shares land borders with Canada to its north and with Mexico to its south and has maritime borders with the Bahamas, Cuba, Russia, and other nations. With a population of over 333 million, it is the most populous country in the Americas and the third most populous in the world. The national capital of the United States is Washington, D.C. and its most populous city and principal financial center is New York City. Paleo-Americ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kidney
The kidneys are two reddish-brown bean-shaped organs found in vertebrates. They are located on the left and right in the retroperitoneal space, and in adult humans are about in length. They receive blood from the paired renal arteries; blood exits into the paired renal veins. Each kidney is attached to a ureter, a tube that carries excreted urine to the bladder. The kidney participates in the control of the volume of various body fluids, fluid osmolality, acid–base balance, various electrolyte concentrations, and removal of toxins. Filtration occurs in the glomerulus: one-fifth of the blood volume that enters the kidneys is filtered. Examples of substances reabsorbed are solute-free water, sodium, bicarbonate, glucose, and amino acids. Examples of substances secreted are hydrogen, ammonium, potassium and uric acid. The nephron is the structural and functional unit of the kidney. Each adult human kidney contains around 1 million nephrons, while a mouse kidney contains on ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tumor
A neoplasm () is a type of abnormal and excessive growth of tissue. The process that occurs to form or produce a neoplasm is called neoplasia. The growth of a neoplasm is uncoordinated with that of the normal surrounding tissue, and persists in growing abnormally, even if the original trigger is removed. This abnormal growth usually forms a mass, when it may be called a tumor. ICD-10 classifies neoplasms into four main groups: benign neoplasms, in situ neoplasms, malignant neoplasms, and neoplasms of uncertain or unknown behavior. Malignant neoplasms are also simply known as cancers and are the focus of oncology. Prior to the abnormal growth of tissue, as neoplasia, cells often undergo an abnormal pattern of growth, such as metaplasia or dysplasia. However, metaplasia or dysplasia does not always progress to neoplasia and can occur in other conditions as well. The word is from Ancient Greek 'new' and 'formation, creation'. Types A neoplasm can be benign, potentially m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wilms' Tumor
Wilms' tumor or Wilms tumor, also known as nephroblastoma, is a cancer of the kidneys that typically occurs in children, rarely in adults.; and occurs most commonly as a renal tumor in child patients. It is named after Max Wilms, the German surgeon (1867–1918) who first described it. Approximately 650 cases are diagnosed in the U.S. annually. The majority of cases occur in children with no associated genetic syndromes; however, a minority of children with Wilms' tumor have a congenital abnormality. It is highly responsive to treatment, with about 90 percent of children being cured. Signs and symptoms Typical signs and symptoms of Wilms' tumor include the following: * a painless, palpable abdominal mass * loss of appetite * abdominal pain * fever * nausea and vomiting * blood in the urine (in about 20% of cases) * high blood pressure in some cases (especially if synchronous or metachronous bilateral kidney involvement) * Rarely as varicoceleErginel B, Vural S, Akın M, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Children's Oncology Group
The Children's Oncology Group (COG), a clinical trials group supported by the National Cancer Institute (NCI), is the world's largest organization devoted exclusively to pediatric cancer research. The COG conducts a spectrum of clinical research and translational research trials for infants, children, adolescents, and young adults with cancer. Almost all centers that treat children with cancer in the US and Canada are part of the COG, with more than 200 centers in the United States, Canada, Switzerland, the Netherlands, Australia, and New Zealand. The member institutions have multidisciplinary teams consisting of physicians, research scientists, nurses, psychologists, pharmacists and other specialists. The group, with more than 7,500 experts worldwide, has nearly 100 active clinical-translational trials open at any given time. These trials include treatment for many types of childhood cancers, studies aimed at determining the underlying biology of these diseases, and trials invo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Children's Cancer Study Group
The Children's Oncology Group (COG), a clinical trials group supported by the National Cancer Institute (NCI), is the world's largest organization devoted exclusively to pediatric cancer research. The COG conducts a spectrum of clinical research and translational research trials for infants, children, adolescents, and young adults with cancer. Almost all centers that treat children with cancer in the US and Canada are part of the COG, with more than 200 centers in the United States, Canada, Switzerland, the Netherlands, Australia, and New Zealand. The member institutions have multidisciplinary teams consisting of physicians, research scientists, nurses, psychologists, pharmacists and other specialists. The group, with more than 7,500 experts worldwide, has nearly 100 active clinical-translational trials open at any given time. These trials include treatment for many types of childhood cancers, studies aimed at determining the underlying biology of these diseases, and trials invo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Southwest Oncology Group
SWOG (formerly the Southwest Oncology Group) is a National Cancer Institute (NCI) supported organization that conducts clinical trials in adult cancers. Comprising more than 4,000 cancer researchers at more than 650 institutions across the United States and Canada, it is one of the largest of the NCI's clinical trial cooperative groups. Member institutions include 24 of the NCI-designated cancer centers, many university medical centers, private institutions, and Community Clinical Oncology Programs. SWOG is headquartered at the Oregon Health & Science University in Portland, with an operations office in San Antonio, Texas and a statistical center in Seattle, Washington. SWOG was created by the NCI in 1956 as the Southwest Cancer Chemotherapy Study Group (SWCCSG) and was headquartered in Houston, Texas. Its primary purpose was to study leukemia, a cancer of the blood which primarily affects children. Then in 1958, the NCI directed the SWCCSG to include the study of adult cance ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
CALGB
Cancer and Leukemia Group B (CALGB; former name: Acute Leukemia Group B, ALGB) is a cancer research cooperative group in the United States. CALGB research is focused on seven major disease areas: leukemia, lymphoma, breast cancer, lung cancer, gastrointestinal malignancies, genito-urinary malignancies, and melanoma. In each of these areas, multi-modality treatment programs are designed by national experts. CALGB is headquartered at the University of Chicago in Chicago, Illinois and maintains its statistical centers at Mayo Clinic in Rochester, Minnesota and Duke University in Durham, North Carolina. History The group that was to become known as the CALGB got its roots when James F. Holland initiated a clinical trial for acute leukemia in 1953 while at the National Cancer Institute. In 1954, before the trial was complete, Holland moved to Roswell Park Comprehensive Cancer Center (then known as Roswell Park Memorial Institute), but the new chief of oncology Gordon Zubrod at the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pediatric Oncology Group
The Pediatric Oncology Group (POG) was a U.S. and Canadian clinical trial cooperative group created with the mission of studying childhood cancers. It was formed by the merger of the pediatric divisions of two other cooperative groups, the Southwest Oncology Group (SWOG) and the CALGB. In 2000, POG merged with several other pediatric cooperative groups to form the Children's Oncology Group (COG). This merger has seen its fair share of problems, especially with regard to integrating the various databases associated with each individual cooperative group. One such initiative to consolidate these databases involves caBIG or the cancer Biomedical Informatics Grid, which is guided and supported by the National Cancer Institute (NCI) in Bethesda, Maryland. Quality Assurance The Pediatric Oncology Group has all of its protocol-driven cases reviewed at the Quality Assurance Review Center (QARC). As mandated by the National Cancer Institute (NCI), every radiotherapy (RT) department parti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Canada
Canada is a country in North America. Its ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, covering over , making it the world's second-largest country by total area. Its southern and western border with the United States, stretching , is the world's longest binational land border. Canada's capital is Ottawa, and its three largest metropolitan areas are Toronto, Montreal, and Vancouver. Indigenous peoples have continuously inhabited what is now Canada for thousands of years. Beginning in the 16th century, British and French expeditions explored and later settled along the Atlantic coast. As a consequence of various armed conflicts, France ceded nearly all of its colonies in North America in 1763. In 1867, with the union of three British North American colonies through Confederation, Canada was formed as a federal dominion of four provinces. This began an accretion of provinces an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Randomized Trial
In science, randomized experiments are the experiments that allow the greatest reliability and validity of statistical estimates of treatment effects. Randomization-based inference is especially important in experimental design and in survey sampling. Overview In the statistical theory of design of experiments, randomization involves randomly allocating the experimental units across the treatment groups. For example, if an experiment compares a new drug against a standard drug, then the patients should be allocated to either the new drug or to the standard drug control using randomization. Randomized experimentation is ''not'' haphazard. Randomization reduces bias by equalising other factors that have not been explicitly accounted for in the experimental design (according to the law of large numbers). Randomization also produces ignorable designs, which are valuable in model-based statistical inference, especially Bayesian or likelihood-based. In the design of experiments, t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
