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Cancer

Cancer
Cancer The causes of cancer are diverse, complex, and only partially understood. Many things are known to increase the risk of cancer, including tobacco use, dietary factors, certain infections, exposure to radiation, lack of physical activity, obesity, and environmental pollutants.[2] These factors can directly damage genes or combine with existing genetic faults within cells to cause cancerous mutations.[3] Approximately 5–10% of cancers can be traced directly to inherited genetic defects.[4] Many cancers could be prevented by not smoking, eating more vegetables, fruits and whole grains, eating less meat and refined carbohydrates, maintaining a healthy weight, exercising, minimizing sunlight exposure, and being vaccinated against some infectious diseases.[2][5] Cancer can be detected in a number of ways, including the presence of certain signs and symptoms, screening tests, or medical imaging. Definitions There is no one definition that describes all cancers. Signs and symptoms Causes

Sarcoma Classification[edit] Tissue[edit] Sarcomas are given a number of different names based on the type of tissue that they most closely resemble. Grade[edit] In addition to being named based on the tissue of origin, sarcomas are also assigned a grade (low, intermediate, or high) based on the presence and frequency of certain cellular and subcellular characteristics associated with malignant biological behavior. Types[edit] (ICD-O codes are provided, where available, along with the relevant edition.) Treatment[edit] Liposarcoma treatment consists of surgical resection, with chemotherapy not being used outside of the investigative setting. Epidemiology[edit] Sarcomas are quite rare with only 15,000 new cases per year in the United States.[9] Sarcomas therefore represent about one percent of the 1.5 million new cancer diagnoses in that country each year.[10] References[edit] External links[edit] Sarcoma at DMOZ

Cancer cell A diagram illustrating the distinction between cancer stem cell targeted and conventional cancer therapies Cancer cells are cells that grow and divide at an unregulated, quickened pace. Although cancer cells can be quite common in a person they are only malignant when the other cells (particularly natural killer cells) fail to recognize and/or destroy them.[1] In the past a common belief was that cancer cells failed to be recognized and destroyed because of a weakness in the immune system. However more recent research has shown that the failure to recognize cancer cells is caused by the lack of particular co-stimulated molecules that aid in the way antigens react with lymphocytes.[2] Causes[edit] All cancers begin in cells, the body's basic unit of life. The body is made up of many types of cells. Sometimes this process of controlled production of cells goes wrong. Pathology[edit] Discovery[edit] Telomerase[edit] Cancer stem cells and drug resistance[edit] See also[edit] References[edit]

Statistics Notes: Standard deviations and standard errors Tasmanian devil The Tasmanian devil (Sarcophilus harrisii) is a carnivorous marsupial of the family Dasyuridae, now found in the wild only on the Australian island state of Tasmania. The size of a small dog, it became the largest carnivorous marsupial in the world following the extinction of the thylacine in 1936. It is characterised by its stocky and muscular build, black fur, pungent odour, extremely loud and disturbing screech, keen sense of smell, and ferocity when feeding. It is believed that ancient marsupials migrated from what is now South America to Australia tens of millions of years ago during the time of Gondwana,[3][4][5] and that they evolved as Australia became more arid. Devils are not monogamous, and their reproductive process is very robust and competitive. Since the late 1990s, devil facial tumour disease has drastically reduced the devil population and now threatens the survival of the species, which in 2008 was declared to be endangered. Taxonomy Genetics Description Feeding Culling

My Medical Choice MY MOTHER fought cancer for almost a decade and died at 56. She held out long enough to meet the first of her grandchildren and to hold them in her arms. But my other children will never have the chance to know her and experience how loving and gracious she was. We often speak of “Mommy’s mommy,” and I find myself trying to explain the illness that took her away from us. My doctors estimated that I had an 87 percent risk of breast cancer and a 50 percent risk of ovarian cancer, although the risk is different in the case of each woman. Only a fraction of breast cancers result from an inherited gene mutation. Once I knew that this was my reality, I decided to be proactive and to minimize the risk as much I could. Photo On April 27, I finished the three months of medical procedures that the mastectomies involved. But I am writing about it now because I hope that other women can benefit from my experience. It is reassuring that they see nothing that makes them uncomfortable.

Cancer pain Pain in cancer may arise from a tumor compressing or infiltrating tissue; from treatments and diagnostic procedures; or from skin, nerve and other changes caused by either the body's immune response or hormones released by the tumor. Most acute (short-term) pain is caused by treatment or diagnostic procedures, although radiotherapy and chemotherapy may produce painful conditions that persist long after treatment has ended. At any given time, about half of all patients with malignant cancer are experiencing pain, more than a third of them experience moderate or severe pain that diminishes their quality of life by adversely affecting mood, sleep, social relations and activities of daily living.[1][2] The presence of pain depends mainly on the location of the cancer and the stage of the disease. Two thirds of patients with advanced stage cancer experience significant pain.[3] Pain[edit] The sensation of pain is distinct from its unpleasantness. Cause[edit] Infection[edit] Tumor-related[edit]

Standard Deviation and Variance Deviation just means how far from the normal Standard Deviation The Standard Deviation is a measure of how spread out numbers are. Its symbol is σ (the greek letter sigma) The formula is easy: it is the square root of the Variance. Variance The Variance is defined as: The average of the squared differences from the Mean. To calculate the variance follow these steps: Work out the Mean (the simple average of the numbers)Then for each number: subtract the Mean and square the result (the squared difference).Then work out the average of those squared differences. Example You and your friends have just measured the heights of your dogs (in millimeters): The heights (at the shoulders) are: 600mm, 470mm, 170mm, 430mm and 300mm. Find out the Mean, the Variance, and the Standard Deviation. Your first step is to find the Mean: Answer: Mean = 600 + 470 + 170 + 430 + 3005 = 19705 = 394 so the mean (average) height is 394 mm. Now we calculate each dog's difference from the Mean: So the Variance is 21,704 Formulas

International Agency for Research on Cancer The International Agency for Research on Cancer (IARC; French: Centre international de Recherche sur le Cancer, CIRC) is an intergovernmental agency forming part of the World Health Organization of the United Nations. Its main offices are in Lyon, France. Its role is to conduct and coordinate research into the causes of cancer. It also collects and publishes surveillance data regarding the occurrence of cancer worldwide.[1] It maintains a series of monographs on the carcinogenic risks to humans posed by a variety of agents, mixtures and exposures.[2] Following its inception, IARC received numerous requests for lists of known and suspected human carcinogens. In 1970, the IARC Advisory Committee recommended that expert groups prepare a compendium on carcinogenic chemicals, and it began publishing its monographs series with this aim in mind.[3] IARC categories[edit] The IARC categorizes agents, mixtures and exposures into five categories.[4] Industry influence and transparency[edit]

Is Cancer Contagious? A healthy person cannot “catch” cancer from someone who has it. There is no evidence that close contact or things like sex, kissing, touching, sharing meals, or breathing the same air can spread cancer from one person to another. Cancer cells from one person are generally unable to live in the body of another healthy person. A healthy person’s immune system recognizes foreign cells and destroys them, including cancer cells from another person. Cancer transfer after organ transplant There have been a few cases in which organ transplants from people with cancer have been able to cause cancer in the person who got the organ. Still, recent studies have shown that cancer is more common in people who get solid-organ transplants than in people who don’t – even when the donor doesn’t have cancer. Cancer transfer during pregnancy Even if a woman has cancer during pregnancy, the cancer rarely affects the fetus directly. Germs can affect cancer risk. Viruses Bacteria Bacteria can also promote cancer.

Don't Want Cancer? Sweat It Off Cancer sucks. No, wait: cancer REALLY sucks. Most of us perceive cancer as a gruesome condition that slowly degrades health and dignity. Though enormous advances in cancer therapy have been made in the last 30 years, the best option remains: just don’t get it. Cancer can be difficult to conceptualize: many common forms (in first-world countries, save lung cancer and cervical cancer) have no clear pathogen. A few months ago Jordan Rapp asked me to pen an article or two. 1) People who do aerobic exercise tend to develop less cancer than sedentary individuals 2) The best mechanism to explain #1 has implications for slowing aging as well In 2009 a group in Great Britain published a meta-analysis of 40 case-controlled studies in peer-reviewed scientific journals ( on exercise and cancer. I would like to point out that the aforementioned reports are correlation studies. Why does this matter? Telomere length is quantifiable. Ryon

Hodgkin's lymphoma Hodgkin lymphoma, also known as Hodgkin's lymphoma and Hodgkin's disease,[1] is a type of lymphoma, which is a cancer originating from white blood cells called lymphocytes. It was named after Thomas Hodgkin, a graduate of the University of Edinburgh Medical School, who first described abnormalities in the lymph system in 1832.[2][3] Hodgkin's lymphoma is characterised by the orderly spread of disease from one lymph node group to another and by the development of systemic symptoms with advanced disease. When Hodgkins cells are examined microscopically, multinucleated Reed–Sternberg cells (RS cells) are the characteristic histopathologic finding. Hodgkin's lymphoma may be treated with radiation therapy, chemotherapy, or hematopoietic stem cell transplantation, with the choice of treatment depending on the age and sex of the patient and the stage, bulk, and histological subtype of the disease. Classification[edit] Types[edit] Staging[edit] Signs and symptoms[edit] Cause[edit] Diagnosis[edit]

Pills To Lose Belly Fat and How to Lose Fat ? Pills To Lose Belly Fat and How to Lose Fat ? By performing the correct diet and balanced also with exercise and lifestyle changes, some parts of the body which occurs the accumulation of fat will shrink by itself without the need for pills to lose belly fat. However, the accumulation of fat on some specific body parts such as thighs, buttocks and also the stomach feels very hard to do, so it requires its own special way to shrink the areas of the body. The function of fat in the body, in addition to those mentioned above, are as the storage of excess calories that can be used as a backup energy when the body is deficient intake. However, in between the fat in other parts of the body, the fat in the stomach is that You need to be aware of and find out more. Read more : Side Effects Amino Acid Pills and Facts About Amino Acids The fat contained in the abdominal area include : How to lose Fat in the Abdomen is Safe Note the type and portion of food You consume.

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